diff --git a/libraries/ckeditor/ckeditor.js b/libraries/ckeditor/ckeditor.js
index b1bb19824..136f365e4 100644
--- a/libraries/ckeditor/ckeditor.js
+++ b/libraries/ckeditor/ckeditor.js
@@ -3,5 +3,5 @@
  * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
  * For licensing, see LICENSE.md.
  */
-function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.BalloonEditor=e():t.BalloonEditor=e()}(self,(function(){return(()=>{"use strict";var t={4722:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-math-form{align-items:flex-start;display:flex;flex-direction:row;flex-wrap:nowrap}@media screen and (max-width:600px){.ck.ck-math-form{flex-wrap:wrap}.ck.ck-math-form .ck-math-view,.ck.ck-math-form .ck-math-view .ck-label,.ck.ck-math-form .ck-math-view .ck-labeled-input{flex-basis:100%}.ck.ck-math-form .ck-button{flex-basis:50%}}.ck-math-tex.ck-placeholder:before{display:none!important}.ck.ck-toolbar-container{z-index:calc(var(--ck-z-modal) + 2)}.ck.ck-math-form{padding:var(--ck-spacing-standard)}.ck.ck-math-form:focus{outline:none}[dir=ltr] .ck.ck-math-form>:not(:first-child),[dir=rtl] .ck.ck-math-form>:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-math-form{padding:0}.ck.ck-math-form .ck-labeled-input{margin:var(--ck-spacing-standard) var(--ck-spacing-standard) 0}.ck.ck-math-form .ck-labeled-input .ck-input-text{min-width:0;width:100%}.ck.ck-math-form .ck-label,.ck.ck-math-form .ck-math-view .ck-button,.ck.ck-math-form .ck-math-view .ck.ck-math-preview{margin:var(--ck-spacing-standard) var(--ck-spacing-standard) 0}.ck.ck-math-form>.ck-button{border:0;border-radius:0;border-top:1px solid var(--ck-color-base-border);margin-top:var(--ck-spacing-standard);padding:var(--ck-spacing-standard)}[dir=ltr] .ck.ck-math-form>.ck-button{margin-left:0}[dir=ltr] .ck.ck-math-form>.ck-button:first-of-type{border-right:1px solid var(--ck-color-base-border)}[dir=rtl] .ck.ck-math-form>.ck-button{margin-left:0}[dir=rtl] .ck.ck-math-form>.ck-button:last-of-type{border-right:1px solid var(--ck-color-base-border)}}","",{version:3,sources:["webpack://./../../node_modules/ckeditor5-math/theme/mathform.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-math/mathform.css","webpack://./../ckeditor5-ui/theme/mixins/_rwd.css"],names:[],mappings:"AAAA,iBAEC,sBAAuB,CADvB,YAAa,CAEb,kBAAmB,CACnB,gBAqBD,CAnBC,oCAND,iBAOE,cAkBF,CATG,yHACC,eACD,CAGD,4BACC,cACD,CACD,CAGD,mCACC,sBACD,CAEA,yBACC,mCACD,CC9BA,iBACI,kCAsEJ,CApEI,uBAEF,YACD,CASC,2FACC,sCACD,CCdD,oCDHD,iBAqBE,SAkDF,CAhDE,mCACC,8DAMD,CAJC,kDACC,WAAY,CACZ,UACD,CAYA,wHACC,8DACD,CAGD,4BAKC,QAAS,CADT,eAAgB,CAEhB,gDAAiD,CAJjD,qCAAsC,CADtC,kCAsBD,CAvBA,sCASE,aAcF,CAZE,oDACC,kDACD,CAbF,sCAiBE,aAMF,CAJE,mDACC,kDACD,CC9DH",sourcesContent:[".ck.ck-math-form {\n\tdisplay: flex;\n\talign-items: flex-start;\n\tflex-direction: row;\n\tflex-wrap: nowrap;\n\n\t@media screen and (max-width: 600px) {\n\t\tflex-wrap: wrap;\n\n\t\t& .ck-math-view {\n\t\t\tflex-basis: 100%;\n\n\t\t\t& .ck-labeled-input {\n\t\t\t\tflex-basis: 100%;\n\t\t\t}\n\n\t\t\t& .ck-label {\n\t\t\t\tflex-basis: 100%;\n\t\t\t}\n\t\t}\n\n\t\t& .ck-button {\n\t\t\tflex-basis: 50%;\n\t\t}\n\t}\n}\n\n.ck-math-tex.ck-placeholder::before {\n\tdisplay: none !important;\n}\n\n.ck.ck-toolbar-container {\n\tz-index: calc(var(--ck-z-modal) + 2);\n}\n",'@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck.ck-math-form {\n    padding: var(--ck-spacing-standard);\n\n    &:focus {\n\t\t/* https://github.com/ckeditor/ckeditor5-link/issues/90 */\n\t\toutline: none;\n\t}\n\n    @mixin ck-dir ltr {\n\t\t& > :not(:first-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-dir rtl {\n\t\t& > :not(:last-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-media-phone {\n\t\tpadding: 0;\n\n\t\t& .ck-labeled-input {\n\t\t\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\n\n\t\t\t& .ck-input-text {\n\t\t\t\tmin-width: 0;\n\t\t\t\twidth: 100%;\n\t\t\t}\n\t\t}\n\n        & .ck-label {\n            margin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\n        }\n\n\t\t& .ck-math-view {\n\t\t\t& .ck-button {\n\t\t\t\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\n\t\t\t}\n\n\t\t\t& .ck.ck-math-preview {\n\t\t\t\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\n\t\t\t}\n\t\t}\n\n\t\t& > .ck-button {\n\t\t\tpadding: var(--ck-spacing-standard);\n\t\t\tmargin-top: var(--ck-spacing-standard);\n\n\t\t\tborder-radius: 0;\n\t\t\tborder: 0;\n\t\t\tborder-top: 1px solid var(--ck-color-base-border);\n\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tmargin-left: 0;\n\n\t\t\t\t&:first-of-type {\n\t\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-left: 0;\n\n\t\t\t\t&:last-of-type {\n\t\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},8603:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck-content code{background-color:hsla(0,0%,78%,.3);border-radius:2px;padding:.15em}.ck.ck-editor__editable .ck-code_selected{background-color:hsla(0,0%,78%,.5)}","",{version:3,sources:["webpack://./../ckeditor5-basic-styles/theme/code.css"],names:[],mappings:"AAKA,iBACC,kCAAuC,CAEvC,iBAAkB,CADlB,aAED,CAEA,0CACC,kCACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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* Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-find-and-replace-form {\n\tmax-width: 100%;\n\n\t& fieldset {\n\t\tdisplay: flex;\n\n\t\t/* The find fieldset */\n\t\t&.ck-find-and-replace-form__find .ck-results-counter {\n\t\t\tposition: absolute;\n\t\t}\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck.ck-find-and-replace-form {\n\twidth: 400px;\n\n\t/*\n\t * The <form> needs tabindex="-1" for proper Esc handling after being clicked\n\t * but the side effect is that this creates a nasty focus outline in some browsers.\n\t */\n\t&:focus {\n\t\toutline: none;\n\t}\n\n\t& fieldset {\n\t\tflex-direction: row;\n\t\tflex-wrap: nowrap;\n\t\talign-items: center;\n\t\talign-content: stretch;\n\n\t\tpadding: var(--ck-spacing-large);\n\t\tborder: 0;\n\t\tmargin: 0;\n\n\t\t& > .ck-button {\n\t\t\tflex: 0 0 auto;\n\t\t}\n\n\t\t@mixin ck-dir ltr {\n\t\t\t& > * + * {\n\t\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\t& > * + * {\n\t\t\t\tmargin-right: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\n\t\t& .ck-labeled-field-view {\n\t\t\tflex: 1 1 auto;\n\n\t\t\t& .ck-input {\n\t\t\t\twidth: 100%;\n\t\t\t\tmin-width: 50px;\n\t\t\t}\n\t\t}\n\n\t\t/* The find fieldset */\n\t\t&.ck-find-and-replace-form__find {\n\t\t\t/* To display all controls in line when there\'s an error under the input */\n\t\t\talign-items: flex-start;\n\n\t\t\t& > .ck-button-find {\n\t\t\t\tfont-weight: bold;\n\n\t\t\t\t/* Beef the find button up a little. It\'s the main action button in the form */\n\t\t\t\t& .ck-button__label {\n\t\t\t\t\tpadding-left: var(--ck-spacing-large);\n\t\t\t\t\tpadding-right: var(--ck-spacing-large);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t& > .ck-button-prev > .ck-icon {\n\t\t\t\ttransform: rotate(90deg);\n\t\t\t}\n\n\t\t\t& > .ck-button-next > .ck-icon {\n\t\t\t\ttransform: rotate(-90deg);\n\t\t\t}\n\n\t\t\t& .ck-results-counter {\n\t\t\t\ttop: 50%;\n\t\t\t\ttransform: translateY(-50%);\n\n\t\t\t\t@mixin ck-dir ltr {\n\t\t\t\t\tright: var(--ck-spacing-standard);\n\t\t\t\t}\n\n\t\t\t\t@mixin ck-dir rtl {\n\t\t\t\t\tleft: var(--ck-spacing-standard);\n\t\t\t\t}\n\n\t\t\t\tcolor: var(--ck-color-base-border);\n\t\t\t}\n\t\t}\n\n\t\t/* The replace fieldset */\n\t\t&.ck-find-and-replace-form__replace {\n\t\t\tflex-wrap: wrap;\n\t\t\tjustify-content: flex-end;\n\t\t\tmargin-top: calc( -1 * var(--ck-spacing-large) );\n\n\t\t\t& > .ck-labeled-field-view {\n\t\t\t\tmargin-bottom: var(--ck-spacing-large);\n\t\t\t}\n\n\t\t\t& > .ck-options-dropdown {\n\t\t\t\tmargin-right: auto;\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\n\t\t\t& > .ck-labeled-field-view,\n\t\t\t& > .ck-labeled-field-view .ck-input {\n\t\t\t\twidth: 100%;\n\t\t\t}\n\t\t}\n\t}\n}\n\n@mixin ck-media-phone {\n\t.ck.ck-find-and-replace-form {\n\t\twidth: 300px;\n\n\t\t& fieldset {\n\t\t\tflex-wrap: wrap;\n\n\t\t\t/* The find fieldset */\n\t\t\t&.ck-find-and-replace-form__find {\n\t\t\t\t& .ck-labeled-field-view {\n\t\t\t\t\tflex: 1 0 auto;\n\t\t\t\t\twidth: 100%;\n\t\t\t\t\tmargin-bottom: var(--ck-spacing-standard);\n\t\t\t\t}\n\n\t\t\t\t& > .ck-button {\n\t\t\t\t\ttext-align: center;\n\n\t\t\t\t\t&:first-of-type {\n\t\t\t\t\t\tflex: 1 1 auto;\n\n\t\t\t\t\t\t@mixin ck-dir ltr {\n\t\t\t\t\t\t\tmargin-left: 0;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t@mixin ck-dir rtl {\n\t\t\t\t\t\t\tmargin-right: 0;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t& .ck-button__label {\n\t\t\t\t\t\t\twidth: 100%;\n\t\t\t\t\t\t\ttext-align: center;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/* The replace fieldset */\n\t\t\t&.ck-find-and-replace-form__replace > :not(.ck-labeled-field-view) {\n\t\t\t\tflex: 1 1 auto;\n\n\t\t\t\t&.ck-dropdown {\n\t\t\t\t\tflex-grow: 0;\n\t\t\t\t}\n\n\t\t\t\t&.ck-button > .ck-button__label {\n\t\t\t\t\twidth: 100%;\n\t\t\t\t\ttext-align: center;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},1134:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck .ck-link_selected{background:var(--ck-color-link-selected-background)}.ck .ck-link_selected span.image-inline{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background)}.ck .ck-fake-link-selection{background:var(--ck-color-link-fake-selection)}.ck .ck-fake-link-selection_collapsed{border-right:1px solid var(--ck-color-base-text);height:100%;margin-right:-1px;outline:1px solid hsla(0,0%,100%,.5)}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/link.css"],names:[],mappings:"AAMA,sBACC,mDAMD,CAHC,wCACC,yFACD,CAOD,4BACC,8CACD,CAGA,sCAEC,gDAAiD,CADjD,WAAY,CAEZ,iBAAkB,CAClB,oCACD",sourcesContent:['/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* Class added to span element surrounding currently selected link. */\n.ck .ck-link_selected {\n\tbackground: var(--ck-color-link-selected-background);\n\n\t/* Give linked inline images some outline to let the user know they are also part of the link. */\n\t& span.image-inline {\n\t\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background);\n\t}\n}\n\n/*\n * Classes used by the "fake visual selection" displayed in the content when an input\n * in the link UI has focus (the browser does not render the native selection in this state).\n */\n.ck .ck-fake-link-selection {\n\tbackground: var(--ck-color-link-fake-selection);\n}\n\n/* A collapsed fake visual selection. */\n.ck .ck-fake-link-selection_collapsed {\n\theight: 100%;\n\tborder-right: 1px solid var(--ck-color-base-text);\n\tmargin-right: -1px;\n\toutline: solid 1px hsla(0, 0%, 100%, .5);\n}\n'],sourceRoot:""}]);const a=s},9376:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-link-actions{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-link-actions .ck-link-actions__preview{display:inline-block}.ck.ck-link-actions .ck-link-actions__preview .ck-button__label{overflow:hidden}@media screen and (max-width:600px){.ck.ck-link-actions{flex-wrap:wrap}.ck.ck-link-actions .ck-link-actions__preview{flex-basis:100%}.ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){flex-basis:50%}}.ck.ck-link-actions .ck-button.ck-link-actions__preview{padding-left:0;padding-right:0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{color:var(--ck-color-link-default);cursor:pointer;max-width:var(--ck-input-width);min-width:3em;padding:0 var(--ck-spacing-medium);text-align:center;text-overflow:ellipsis}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label:hover{text-decoration:underline}.ck.ck-link-actions .ck-button.ck-link-actions__preview,.ck.ck-link-actions .ck-button.ck-link-actions__preview:active,.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus,.ck.ck-link-actions .ck-button.ck-link-actions__preview:hover{background:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:active{box-shadow:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus .ck-button__label{text-decoration:underline}[dir=ltr] .ck.ck-link-actions .ck-button:not(:first-child),[dir=rtl] .ck.ck-link-actions .ck-button:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-link-actions .ck-button.ck-link-actions__preview{margin:var(--ck-spacing-standard) var(--ck-spacing-standard) 0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{max-width:100%;min-width:0}[dir=ltr] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview),[dir=rtl] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){margin-left:0}}","",{version:3,sources:["webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkactions.css","webpack://./../ckeditor5-ui/theme/mixins/_rwd.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkactions.css"],names:[],mappings:"AAOA,oBACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,8CACC,oBAKD,CAHC,gEACC,eACD,CCXD,oCDCD,oBAcE,cAUF,CARE,8CACC,eACD,CAEA,8DACC,cACD,CCrBD,CCIA,wDACC,cAAe,CACf,eAmCD,CAjCC,0EAEC,kCAAmC,CAEnC,cAAe,CAIf,+BAAgC,CAChC,aAAc,CARd,kCAAmC,CASnC,iBAAkB,CAPlB,sBAYD,CAHC,gFACC,yBACD,CAGD,mPAIC,eACD,CAEA,+DACC,eACD,CAGC,gFACC,yBACD,CAWD,qHACC,sCACD,CDtDD,oCC0DC,wDACC,8DAMD,CAJC,0EAEC,cAAe,CADf,WAED,CAGD,gJAME,aAEF,CDzED",sourcesContent:['/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-link-actions {\n\tdisplay: flex;\n\tflex-direction: row;\n\tflex-wrap: nowrap;\n\n\t& .ck-link-actions__preview {\n\t\tdisplay: inline-block;\n\n\t\t& .ck-button__label {\n\t\t\toverflow: hidden;\n\t\t}\n\t}\n\n\t@mixin ck-media-phone {\n\t\tflex-wrap: wrap;\n\n\t\t& .ck-link-actions__preview {\n\t\t\tflex-basis: 100%;\n\t\t}\n\n\t\t& .ck-button:not(.ck-link-actions__preview) {\n\t\t\tflex-basis: 50%;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_unselectable.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n@import "../mixins/_focus.css";\n@import "../mixins/_shadow.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-link-actions {\n\t& .ck-button.ck-link-actions__preview {\n\t\tpadding-left: 0;\n\t\tpadding-right: 0;\n\n\t\t& .ck-button__label {\n\t\t\tpadding: 0 var(--ck-spacing-medium);\n\t\t\tcolor: var(--ck-color-link-default);\n\t\t\ttext-overflow: ellipsis;\n\t\t\tcursor: pointer;\n\n\t\t\t/* Match the box model of the link editor form\'s input so the balloon\n\t\t\tdoes not change width when moving between actions and the form. */\n\t\t\tmax-width: var(--ck-input-width);\n\t\t\tmin-width: 3em;\n\t\t\ttext-align: center;\n\n\t\t\t&:hover {\n\t\t\t\ttext-decoration: underline;\n\t\t\t}\n\t\t}\n\n\t\t&,\n\t\t&:hover,\n\t\t&:focus,\n\t\t&:active {\n\t\t\tbackground: none;\n\t\t}\n\n\t\t&:active {\n\t\t\tbox-shadow: none;\n\t\t}\n\n\t\t&:focus {\n\t\t\t& .ck-button__label {\n\t\t\t\ttext-decoration: underline;\n\t\t\t}\n\t\t}\n\t}\n\n\t@mixin ck-dir ltr {\n\t\t& .ck-button:not(:first-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-dir rtl {\n\t\t& .ck-button:not(:last-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-media-phone {\n\t\t& .ck-button.ck-link-actions__preview {\n\t\t\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\n\n\t\t\t& .ck-button__label {\n\t\t\t\tmin-width: 0;\n\t\t\t\tmax-width: 100%;\n\t\t\t}\n\t\t}\n\n\t\t& .ck-button:not(.ck-link-actions__preview) {\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},8117:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-link-form{display:flex}.ck.ck-link-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-link-form{flex-wrap:wrap}.ck.ck-link-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-link-form .ck-button{flex-basis:50%}}.ck.ck-link-form_layout-vertical{display:block}.ck.ck-link-form_layout-vertical .ck-button.ck-button-cancel,.ck.ck-link-form_layout-vertical .ck-button.ck-button-save{margin-top:var(--ck-spacing-medium)}.ck.ck-link-form_layout-vertical{min-width:var(--ck-input-width);padding:0}.ck.ck-link-form_layout-vertical .ck-labeled-field-view{margin:var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small)}.ck.ck-link-form_layout-vertical .ck-labeled-field-view .ck-input-text{min-width:0;width:100%}.ck.ck-link-form_layout-vertical>.ck-button{border-radius:0;margin:0;padding:var(--ck-spacing-standard);width:50%}.ck.ck-link-form_layout-vertical>.ck-button:not(:focus){border-top:1px solid var(--ck-color-base-border)}[dir=ltr] .ck.ck-link-form_layout-vertical>.ck-button,[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button{margin-left:0}[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button:last-of-type{border-right:1px solid var(--ck-color-base-border)}.ck.ck-link-form_layout-vertical .ck.ck-list{margin:var(--ck-spacing-standard) var(--ck-spacing-large)}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton{padding:0;width:100%}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton:hover{background:none}","",{version:3,sources:["webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkform.css","webpack://./../ckeditor5-ui/theme/mixins/_rwd.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkform.css"],names:[],mappings:"AAOA,iBACC,YAiBD,CAfC,2BACC,YACD,CCNA,oCDCD,iBAQE,cAUF,CARE,wCACC,eACD,CAEA,4BACC,cACD,CCfD,CDuBD,iCACC,aAYD,CALE,wHAEC,mCACD,CE/BF,iCAEC,+BAAgC,CADhC,SAgDD,CA7CC,wDACC,8EAMD,CAJC,uEACC,WAAY,CACZ,UACD,CAGD,4CAIC,eAAgB,CAFhB,QAAS,CADT,kCAAmC,CAEnC,SAkBD,CAfC,wDACC,gDACD,CARD,4GAeE,aAMF,CAJE,mEACC,kDACD,CAKF,6CACC,yDAUD,CARC,wEACC,SAAU,CACV,UAKD,CAHC,8EACC,eACD",sourcesContent:['/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-link-form {\n\tdisplay: flex;\n\n\t& .ck-label {\n\t\tdisplay: none;\n\t}\n\n\t@mixin ck-media-phone {\n\t\tflex-wrap: wrap;\n\n\t\t& .ck-labeled-field-view {\n\t\t\tflex-basis: 100%;\n\t\t}\n\n\t\t& .ck-button {\n\t\t\tflex-basis: 50%;\n\t\t}\n\t}\n}\n\n/*\n * Style link form differently when manual decorators are available.\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\n */\n.ck.ck-link-form_layout-vertical {\n\tdisplay: block;\n\n\t/*\n\t * Whether the form is in the responsive mode or not, if there are decorator buttons\n\t * keep the top margin of action buttons medium.\n\t */\n\t& .ck-button {\n\t\t&.ck-button-save,\n\t\t&.ck-button-cancel {\n\t\t\tmargin-top: var(--ck-spacing-medium);\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n/*\n * Style link form differently when manual decorators are available.\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\n */\n.ck.ck-link-form_layout-vertical {\n\tpadding: 0;\n\tmin-width: var(--ck-input-width);\n\n\t& .ck-labeled-field-view {\n\t\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small);\n\n\t\t& .ck-input-text {\n\t\t\tmin-width: 0;\n\t\t\twidth: 100%;\n\t\t}\n\t}\n\n\t& > .ck-button {\n\t\tpadding: var(--ck-spacing-standard);\n\t\tmargin: 0;\n\t\twidth: 50%;\n\t\tborder-radius: 0;\n\n\t\t&:not(:focus) {\n\t\t\tborder-top: 1px solid var(--ck-color-base-border);\n\t\t}\n\n\t\t@mixin ck-dir ltr {\n\t\t\tmargin-left: 0;\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\tmargin-left: 0;\n\n\t\t\t&:last-of-type {\n\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t}\n\t\t}\n\t}\n\n\t/* Using additional `.ck` class for stronger CSS specificity than `.ck.ck-link-form > :not(:first-child)`. */\n\t& .ck.ck-list {\n\t\tmargin: var(--ck-spacing-standard) var(--ck-spacing-large);\n\n\t\t& .ck-button.ck-switchbutton {\n\t\t\tpadding: 0;\n\t\t\twidth: 100%;\n\n\t\t\t&:hover {\n\t\t\t\tbackground: none;\n\t\t\t}\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},5023:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-color-mention-background:rgba(153,0,48,.1);--ck-color-mention-text:#990030}.ck-content .mention{background:var(--ck-color-mention-background);color:var(--ck-color-mention-text)}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-mention/mention.css"],names:[],mappings:"AAKA,MACC,+CAAwD,CACxD,+BACD,CAEA,qBACC,6CAA8C,CAC9C,kCACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-editor__editable {\n\t& .image,\n\t& .image-inline {\n\t\t/* Showing animation. */\n\t\t&.ck-appear {\n\t\t\tanimation: fadeIn 700ms;\n\t\t}\n\t}\n\n\t/* Upload progress bar. */\n\t& .image .ck-progress-bar,\n\t& .image-inline .ck-progress-bar {\n\t\theight: 2px;\n\t\twidth: 0;\n\t\tbackground: var(--ck-color-upload-bar-background);\n\t\ttransition: width 100ms;\n\t}\n}\n\n@keyframes fadeIn {\n\tfrom { opacity: 0; }\n\tto   { opacity: 1; }\n}\n"],sourceRoot:""}]);const a=s},1905:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-text-alternative-form{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-text-alternative-form .ck-labeled-field-view{display:inline-block}.ck.ck-text-alternative-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-text-alternative-form{flex-wrap:wrap}.ck.ck-text-alternative-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-text-alternative-form .ck-button{flex-basis:50%}}","",{version:3,sources:["webpack://./../ckeditor5-image/theme/textalternativeform.css","webpack://./../ckeditor5-ui/theme/mixins/_rwd.css"],names:[],mappings:"AAOA,6BACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,oDACC,oBACD,CAEA,uCACC,YACD,CCZA,oCDCD,6BAcE,cAUF,CARE,oDACC,eACD,CAEA,wCACC,cACD,CCrBD",sourcesContent:['/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-text-alternative-form {\n\tdisplay: flex;\n\tflex-direction: row;\n\tflex-wrap: nowrap;\n\n\t& .ck-labeled-field-view {\n\t\tdisplay: inline-block;\n\t}\n\n\t& .ck-label {\n\t\tdisplay: none;\n\t}\n\n\t@mixin ck-media-phone {\n\t\tflex-wrap: wrap;\n\n\t\t& .ck-labeled-field-view {\n\t\t\tflex-basis: 100%;\n\t\t}\n\n\t\t& .ck-button {\n\t\t\tflex-basis: 50%;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},4721:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-collapsible.ck-collapsible_collapsed>.ck-collapsible__children{display:none}:root{--ck-collapsible-arrow-size:calc(var(--ck-icon-size)*0.5)}.ck.ck-collapsible>.ck.ck-button{border-radius:0;color:inherit;font-weight:700;padding:var(--ck-spacing-medium) var(--ck-spacing-large);width:100%}.ck.ck-collapsible>.ck.ck-button:focus{background:transparent}.ck.ck-collapsible>.ck.ck-button:active,.ck.ck-collapsible>.ck.ck-button:hover:not(:focus),.ck.ck-collapsible>.ck.ck-button:not(:focus){background:transparent;border-color:transparent;box-shadow:none}.ck.ck-collapsible>.ck.ck-button>.ck-icon{margin-right:var(--ck-spacing-medium);width:var(--ck-collapsible-arrow-size)}.ck.ck-collapsible>.ck-collapsible__children{padding:0 var(--ck-spacing-large) var(--ck-spacing-large)}.ck.ck-collapsible.ck-collapsible_collapsed>.ck.ck-button .ck-icon{transform:rotate(-90deg)}","",{version:3,sources:["webpack://./../ckeditor5-list/theme/collapsible.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/collapsible.css"],names:[],mappings:"AAMC,sEACC,YACD,CCHD,MACC,yDACD,CAGC,iCAIC,eAAgB,CAChB,aAAc,CAHd,eAAiB,CACjB,wDAAyD,CAFzD,UAoBD,CAdC,uCACC,sBACD,CAEA,wIACC,sBAAuB,CACvB,wBAAyB,CACzB,eACD,CAEA,0CACC,qCAAsC,CACtC,sCACD,CAGD,6CACC,yDACD,CAGC,mEACC,wBACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-collapsible.ck-collapsible_collapsed {\n\t& > .ck-collapsible__children {\n\t\tdisplay: none;\n\t}\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-collapsible-arrow-size: calc(0.5 * var(--ck-icon-size));\n}\n\n.ck.ck-collapsible {\n\t& > .ck.ck-button {\n\t\twidth: 100%;\n\t\tfont-weight: bold;\n\t\tpadding: var(--ck-spacing-medium) var(--ck-spacing-large);\n\t\tborder-radius: 0;\n\t\tcolor: inherit;\n\n\t\t&:focus {\n\t\t\tbackground: transparent;\n\t\t}\n\n\t\t&:active, &:not(:focus), &:hover:not(:focus) {\n\t\t\tbackground: transparent;\n\t\t\tborder-color: transparent;\n\t\t\tbox-shadow: none;\n\t\t}\n\n\t\t& > .ck-icon {\n\t\t\tmargin-right: var(--ck-spacing-medium);\n\t\t\twidth: var(--ck-collapsible-arrow-size);\n\t\t}\n\t}\n\n\t& > .ck-collapsible__children {\n\t\tpadding: 0 var(--ck-spacing-large) var(--ck-spacing-large);\n\t}\n\n\t&.ck-collapsible_collapsed {\n\t\t& > .ck.ck-button .ck-icon {\n\t\t\ttransform: rotate(-90deg);\n\t\t}\n\t}\n}\n"],sourceRoot:""}]);const a=s},6082:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-list-properties.ck-list-properties_without-styles{padding:var(--ck-spacing-large)}.ck.ck-list-properties.ck-list-properties_without-styles>*{min-width:14em}.ck.ck-list-properties.ck-list-properties_without-styles>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-list-styles-list{grid-template-columns:repeat(4,auto)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible{border-top:1px solid var(--ck-color-base-border)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*{width:100%}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties .ck.ck-numbered-list-properties__start-index .ck-input{min-width:auto;width:100%}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order{background:transparent;margin-bottom:calc(var(--ck-spacing-tiny)*-1);padding-left:0;padding-right:0}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:active,.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:hover{background:none;border-color:transparent;box-shadow:none}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/listproperties.css"],names:[],mappings:"AAOC,yDACC,+BASD,CAPC,2DACC,cAKD,CAHC,6DACC,qCACD,CASD,wFACC,oCACD,CAGA,mFACC,gDAWD,CARE,+GACC,UAKD,CAHC,iHACC,qCACD,CAMJ,8EACC,cAAe,CACf,UACD,CAEA,uEACC,sBAAuB,CAGvB,6CAAgD,CAFhD,cAAe,CACf,eAQD,CALC,2JAGC,eAAgB,CADhB,wBAAyB,CADzB,eAGD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-list-properties {\n\t/* When there are no list styles and there is no collapsible. */\n\t&.ck-list-properties_without-styles {\n\t\tpadding: var(--ck-spacing-large);\n\n\t\t& > * {\n\t\t\tmin-width: 14em;\n\n\t\t\t& + * {\n\t\t\t\tmargin-top: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\t}\n\n\t/*\n\t * When the numbered list property fields (start at, reversed) should be displayed,\n\t * more horizontal space is needed. Reconfigure the style grid to create that space.\n\t */\n\t&.ck-list-properties_with-numbered-properties {\n\t\t& > .ck-list-styles-list {\n\t\t\tgrid-template-columns: repeat( 4, auto );\n\t\t}\n\n\t\t/* When list styles are rendered and property fields are in a collapsible. */\n\t\t& > .ck-collapsible {\n\t\t\tborder-top: 1px solid var(--ck-color-base-border);\n\n\t\t\t& > .ck-collapsible__children {\n\t\t\t\t& > * {\n\t\t\t\t\twidth: 100%;\n\n\t\t\t\t\t& + * {\n\t\t\t\t\t\tmargin-top: var(--ck-spacing-standard);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t& .ck.ck-numbered-list-properties__start-index .ck-input {\n\t\tmin-width: auto;\n\t\twidth: 100%;\n\t}\n\n\t& .ck.ck-numbered-list-properties__reversed-order {\n\t\tbackground: transparent;\n\t\tpadding-left: 0;\n\t\tpadding-right: 0;\n\t\tmargin-bottom: calc(-1 * var(--ck-spacing-tiny));\n\n\t\t&:active, &:hover {\n\t\t\tbox-shadow: none;\n\t\t\tborder-color: transparent;\n\t\t\tbackground: none;\n\t\t}\n\t}\n}\n"],sourceRoot:""}]);const a=s},2417:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-list-styles-list{display:grid}.ck-content ol{list-style-type:decimal}.ck-content ol ol{list-style-type:lower-latin}.ck-content ol ol ol{list-style-type:lower-roman}.ck-content ol ol ol ol{list-style-type:upper-latin}.ck-content ol ol ol ol ol{list-style-type:upper-roman}.ck-content ul{list-style-type:circle}.ck-content ul ul{list-style-type:disc}.ck-content ul ul ul,.ck-content ul ul ul ul{list-style-type:square}:root{--ck-list-style-button-size:44px}.ck.ck-list-styles-list{column-gap:var(--ck-spacing-medium);grid-template-columns:repeat(3,auto);padding:var(--ck-spacing-large);row-gap:var(--ck-spacing-medium)}.ck.ck-list-styles-list .ck-button{box-sizing:content-box;margin:0;padding:0}.ck.ck-list-styles-list .ck-button,.ck.ck-list-styles-list .ck-button .ck-icon{height:var(--ck-list-style-button-size);width:var(--ck-list-style-button-size)}","",{version:3,sources:["webpack://./../ckeditor5-list/theme/liststyles.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/liststyles.css"],names:[],mappings:"AAKA,wBACC,YACD,CAEA,eACC,uBAiBD,CAfC,kBACC,2BAaD,CAXC,qBACC,2BASD,CAPC,wBACC,2BAKD,CAHC,2BACC,2BACD,CAMJ,eACC,sBAaD,CAXC,kBACC,oBASD,CAJE,6CACC,sBACD,CCnCH,MACC,gCACD,CAEA,wBAGC,mCAAoC,CAFpC,oCAAwC,CAGxC,+BAAgC,CAFhC,gCA4BD,CAxBC,mCAiBC,sBAAuB,CAPvB,QAAS,CANT,SAmBD,CAJC,+EAhBA,uCAAwC,CADxC,sCAoBA",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-list-styles-list {\n\tdisplay: grid;\n}\n\n.ck-content ol {\n\tlist-style-type: decimal;\n\n\t& ol {\n\t\tlist-style-type: lower-latin;\n\n\t\t& ol {\n\t\t\tlist-style-type: lower-roman;\n\n\t\t\t& ol {\n\t\t\t\tlist-style-type: upper-latin;\n\n\t\t\t\t& ol {\n\t\t\t\t\tlist-style-type: upper-roman;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\n.ck-content ul {\n\tlist-style-type: circle;\n\n\t& ul {\n\t\tlist-style-type: disc;\n\n\t\t& ul {\n\t\t\tlist-style-type: square;\n\n\t\t\t& ul {\n\t\t\t\tlist-style-type: square;\n\t\t\t}\n\t\t}\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-list-style-button-size: 44px;\n}\n\n.ck.ck-list-styles-list {\n\tgrid-template-columns: repeat( 3, auto );\n\trow-gap: var(--ck-spacing-medium);\n\tcolumn-gap: var(--ck-spacing-medium);\n\tpadding: var(--ck-spacing-large);\n\n\t& .ck-button {\n\t\t/* Make the button look like a thumbnail (the icon "takes it all"). */\n\t\twidth: var(--ck-list-style-button-size);\n\t\theight: var(--ck-list-style-button-size);\n\t\tpadding: 0;\n\n\t\t/*\n\t\t * Buttons are aligned by the grid so disable default button margins to not collide with the\n\t\t * gaps in the grid.\n\t\t */\n\t\tmargin: 0;\n\n\t\t/*\n\t\t * Make sure the button border (which is displayed on focus, BTW) does not steal pixels\n\t\t * from the button dimensions and, as a result, decrease the size of the icon\n\t\t * (which becomes blurry as it scales down).\n\t\t */\n\t\tbox-sizing: content-box;\n\n\t\t& .ck-icon {\n\t\t\twidth: var(--ck-list-style-button-size);\n\t\t\theight: var(--ck-list-style-button-size);\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},1199:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,':root{--ck-todo-list-checkmark-size:16px}.ck-content .todo-list{list-style:none}.ck-content .todo-list li{margin-bottom:5px}.ck-content .todo-list li .todo-list{margin-top:5px}.ck-content .todo-list .todo-list__label>input{-webkit-appearance:none;border:0;display:inline-block;height:var(--ck-todo-list-checkmark-size);left:-25px;margin-left:0;margin-right:-15px;position:relative;right:0;vertical-align:middle;width:var(--ck-todo-list-checkmark-size)}.ck-content .todo-list .todo-list__label>input:before{border:1px solid #333;border-radius:2px;box-sizing:border-box;content:"";display:block;height:100%;position:absolute;transition:box-shadow .25s ease-in-out,background .25s ease-in-out,border .25s ease-in-out;width:100%}.ck-content .todo-list .todo-list__label>input:after{border-color:transparent;border-style:solid;border-width:0 calc(var(--ck-todo-list-checkmark-size)/8) calc(var(--ck-todo-list-checkmark-size)/8) 0;box-sizing:content-box;content:"";display:block;height:calc(var(--ck-todo-list-checkmark-size)/2.6);left:calc(var(--ck-todo-list-checkmark-size)/3);pointer-events:none;position:absolute;top:calc(var(--ck-todo-list-checkmark-size)/5.3);transform:rotate(45deg);width:calc(var(--ck-todo-list-checkmark-size)/5.3)}.ck-content .todo-list .todo-list__label>input[checked]:before{background:#26ab33;border-color:#26ab33}.ck-content .todo-list .todo-list__label>input[checked]:after{border-color:#fff}.ck-content .todo-list .todo-list__label .todo-list__label__description{vertical-align:middle}[dir=rtl] .todo-list .todo-list__label>input{left:0;margin-left:-15px;margin-right:0;right:-25px}.ck-editor__editable .todo-list .todo-list__label>input{cursor:pointer}.ck-editor__editable .todo-list .todo-list__label>input:hover:before{box-shadow:0 0 0 5px rgba(0,0,0,.1)}',"",{version:3,sources:["webpack://./../ckeditor5-list/theme/todolist.css"],names:[],mappings:"AAKA,MACC,kCACD,CAEA,uBACC,eA0ED,CAxEC,0BACC,iBAKD,CAHC,qCACC,cACD,CAIA,+CACC,uBAAwB,CAQxB,QAAS,CAPT,oBAAqB,CAGrB,yCAA0C,CAO1C,UAAW,CAGX,aAAc,CAFd,kBAAmB,CAVnB,iBAAkB,CAWlB,OAAQ,CARR,qBAAsB,CAFtB,wCAqDD,CAxCC,sDAOC,qBAAiC,CACjC,iBAAkB,CALlB,qBAAsB,CACtB,UAAW,CAHX,aAAc,CAKd,WAAY,CAJZ,iBAAkB,CAOlB,0FAAgG,CAJhG,UAKD,CAEA,qDAaC,wBAAyB,CADzB,kBAAmB,CAEnB,sGAA+G,CAX/G,sBAAuB,CAEvB,UAAW,CAJX,aAAc,CAUd,mDAAwD,CAHxD,+CAAoD,CAJpD,mBAAoB,CAFpB,iBAAkB,CAOlB,gDAAqD,CAMrD,uBAAwB,CALxB,kDAMD,CAGC,+DACC,kBAA8B,CAC9B,oBACD,CAEA,8DACC,iBACD,CAIF,wEACC,qBACD,CAKF,6CACC,MAAO,CAGP,iBAAkB,CAFlB,cAAe,CACf,WAED,CAMA,wDACC,cAKD,CAHC,qEACC,mCACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-todo-list-checkmark-size: 16px;\n}\n\n.ck-content .todo-list {\n\tlist-style: none;\n\n\t& li {\n\t\tmargin-bottom: 5px;\n\n\t\t& .todo-list {\n\t\t\tmargin-top: 5px;\n\t\t}\n\t}\n\n\t& .todo-list__label {\n\t\t& > input {\n\t\t\t-webkit-appearance: none;\n\t\t\tdisplay: inline-block;\n\t\t\tposition: relative;\n\t\t\twidth: var(--ck-todo-list-checkmark-size);\n\t\t\theight: var(--ck-todo-list-checkmark-size);\n\t\t\tvertical-align: middle;\n\n\t\t\t/* Needed on iOS */\n\t\t\tborder: 0;\n\n\t\t\t/* LTR styles */\n\t\t\tleft: -25px;\n\t\t\tmargin-right: -15px;\n\t\t\tright: 0;\n\t\t\tmargin-left: 0;\n\n\t\t\t&::before {\n\t\t\t\tdisplay: block;\n\t\t\t\tposition: absolute;\n\t\t\t\tbox-sizing: border-box;\n\t\t\t\tcontent: '';\n\t\t\t\twidth: 100%;\n\t\t\t\theight: 100%;\n\t\t\t\tborder: 1px solid hsl(0, 0%, 20%);\n\t\t\t\tborder-radius: 2px;\n\t\t\t\ttransition: 250ms ease-in-out box-shadow, 250ms ease-in-out background, 250ms ease-in-out border;\n\t\t\t}\n\n\t\t\t&::after {\n\t\t\t\tdisplay: block;\n\t\t\t\tposition: absolute;\n\t\t\t\tbox-sizing: content-box;\n\t\t\t\tpointer-events: none;\n\t\t\t\tcontent: '';\n\n\t\t\t\t/* Calculate tick position, size and border-width proportional to the checkmark size. */\n\t\t\t\tleft: calc( var(--ck-todo-list-checkmark-size) / 3 );\n\t\t\t\ttop: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\n\t\t\t\twidth: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\n\t\t\t\theight: calc( var(--ck-todo-list-checkmark-size) / 2.6 );\n\t\t\t\tborder-style: solid;\n\t\t\t\tborder-color: transparent;\n\t\t\t\tborder-width: 0 calc( var(--ck-todo-list-checkmark-size) / 8 ) calc( var(--ck-todo-list-checkmark-size) / 8 ) 0;\n\t\t\t\ttransform: rotate(45deg);\n\t\t\t}\n\n\t\t\t&[checked] {\n\t\t\t\t&::before {\n\t\t\t\t\tbackground: hsl(126, 64%, 41%);\n\t\t\t\t\tborder-color: hsl(126, 64%, 41%);\n\t\t\t\t}\n\n\t\t\t\t&::after {\n\t\t\t\t\tborder-color: hsl(0, 0%, 100%);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t& .todo-list__label__description {\n\t\t\tvertical-align: middle;\n\t\t}\n\t}\n}\n\n/* RTL styles */\n[dir=\"rtl\"] .todo-list .todo-list__label > input {\n\tleft: 0;\n\tmargin-right: 0;\n\tright: -25px;\n\tmargin-left: -15px;\n}\n\n/*\n * To-do list should be interactive only during the editing\n * (https://github.com/ckeditor/ckeditor5/issues/2090).\n */\n.ck-editor__editable .todo-list .todo-list__label > input {\n\tcursor: pointer;\n\n\t&:hover::before {\n\t\tbox-shadow: 0 0 0 5px hsla(0, 0%, 0%, 0.1);\n\t}\n}\n"],sourceRoot:""}]);const a=s},7368:(t,e,n)=>{n.d(e,{Z:()=>a});var 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.ck.ck-input-color>.ck.ck-input-text{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-input-color>.ck.ck-input-text:focus{z-index:0}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{padding:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-left-radius:0;border-top-left-radius:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-left:1px solid transparent}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-right-radius:0;border-top-right-radius:0}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-right:1px solid transparent}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button.ck-disabled{background:var(--ck-color-input-disabled-background)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border-radius:0}.ck-rounded-corners .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview,.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border:1px solid var(--ck-color-input-border);height:20px;width:20px}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview>.ck.ck-input-color__button__preview__no-color-indicator{background:red;border-radius:2px;height:150%;left:50%;top:-30%;transform:rotate(45deg);transform-origin:50%;width:8%}.ck.ck-input-color .ck.ck-input-color__remove-color{border-bottom-left-radius:0;border-bottom-right-radius:0;padding:calc(var(--ck-spacing-standard)/2) var(--ck-spacing-standard);width:100%}.ck.ck-input-color .ck.ck-input-color__remove-color:not(:focus){border-bottom:1px solid var(--ck-color-input-border)}[dir=ltr] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-right-radius:0}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-left-radius:0}.ck.ck-input-color .ck.ck-input-color__remove-color .ck.ck-icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-input-color {\n\twidth: 100%;\n\tdisplay: flex;\n\tflex-direction: row-reverse;\n\n\t& > input.ck.ck-input-text {\n\t\tmin-width: auto;\n\t\tflex-grow: 1;\n\t}\n\n\t& > div.ck.ck-dropdown {\n\t\tmin-width: auto;\n\n\t\t/* This dropdown has no arrow but a color preview instead. */\n\t\t& > .ck-input-color__button .ck-dropdown__arrow {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n\n\t& .ck.ck-input-color__button {\n\t\t/* Resolving issue with misaligned buttons on Safari (see #10589) */\n\t\tdisplay: flex;\n\n\t\t& .ck.ck-input-color__button__preview {\n\t\t\tposition: relative;\n\t\t\toverflow: hidden;\n\n\t\t\t& > .ck.ck-input-color__button__preview__no-color-indicator {\n\t\t\t\tposition: absolute;\n\t\t\t\tdisplay: block;\n\t\t\t}\n\t\t}\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n@import "../mixins/_rounded.css";\n\n.ck.ck-input-color {\n\t& > .ck.ck-input-text {\n\t\t@mixin ck-dir ltr {\n\t\t\tborder-top-right-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\tborder-top-left-radius: 0;\n\t\t\tborder-bottom-left-radius: 0;\n\t\t}\n\n\t\t/* Make sure the focused input is always on top of the dropdown button so its\n\t\t   outline and border are never cropped (also when the input is read-only). */\n\t\t&:focus {\n\t\t\tz-index: 0;\n\t\t}\n\t}\n\n\t& > .ck.ck-dropdown {\n\t\t& > .ck.ck-button.ck-input-color__button {\n\t\t\tpadding: 0;\n\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tborder-top-left-radius: 0;\n\t\t\t\tborder-bottom-left-radius: 0;\n\n\t\t\t\t&:not(:focus) {\n\t\t\t\t\tborder-left: 1px solid transparent;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tborder-top-right-radius: 0;\n\t\t\t\tborder-bottom-right-radius: 0;\n\n\t\t\t\t&:not(:focus) {\n\t\t\t\t\tborder-right: 1px solid transparent;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t&.ck-disabled {\n\t\t\t\tbackground: var(--ck-color-input-disabled-background);\n\t\t\t}\n\n\t\t\t& > .ck.ck-input-color__button__preview {\n\t\t\t\t@mixin ck-rounded-corners;\n\n\t\t\t\twidth: 20px;\n\t\t\t\theight: 20px;\n\t\t\t\tborder: 1px solid var(--ck-color-input-border);\n\n\t\t\t\t& > .ck.ck-input-color__button__preview__no-color-indicator {\n\t\t\t\t\ttop: -30%;\n\t\t\t\t\tleft: 50%;\n\t\t\t\t\theight: 150%;\n\t\t\t\t\twidth: 8%;\n\t\t\t\t\tbackground: hsl(0, 100%, 50%);\n\t\t\t\t\tborder-radius: 2px;\n\t\t\t\t\ttransform: rotate(45deg);\n\t\t\t\t\ttransform-origin: 50%;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t& .ck.ck-input-color__remove-color {\n\t\twidth: 100%;\n\t\tpadding: calc(var(--ck-spacing-standard) / 2) var(--ck-spacing-standard);\n\n\t\tborder-bottom-left-radius: 0;\n\t\tborder-bottom-right-radius: 0;\n\n\t\t&:not(:focus) {\n\t\t\tborder-bottom: 1px solid var(--ck-color-input-border);\n\t\t}\n\n\t\t@mixin ck-dir ltr {\n\t\t\tborder-top-right-radius: 0;\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\tborder-top-left-radius: 0;\n\t\t}\n\n\t\t& .ck.ck-icon {\n\t\t\tmargin-right: var(--ck-spacing-standard);\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-right: 0;\n\t\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../mixins/_unselectable.css";\n\n.ck.ck-button,\na.ck.ck-button {\n\t@mixin ck-unselectable;\n\n\tposition: relative;\n\tdisplay: inline-flex;\n\talign-items: center;\n\tjustify-content: left;\n\n\t& .ck-button__label {\n\t\tdisplay: none;\n\t}\n\n\t&.ck-button_with-text {\n\t\t& .ck-button__label {\n\t\t\tdisplay: inline-block;\n\t\t}\n\t}\n\n\t/* Center the icon horizontally in a button without text. */\n\t&:not(.ck-button_with-text)  {\n\t\tjustify-content: center;\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Makes element unselectable.\n */\n@define-mixin ck-unselectable {\n\t-moz-user-select: none;\n\t-webkit-user-select: none;\n\t-ms-user-select: none;\n\tuser-select: none\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_focus.css";\n@import "../../../mixins/_shadow.css";\n@import "../../../mixins/_disabled.css";\n@import "../../../mixins/_rounded.css";\n@import "../../mixins/_button.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck.ck-button,\na.ck.ck-button {\n\t@mixin ck-button-colors --ck-color-button-default;\n\t@mixin ck-rounded-corners;\n\n\twhite-space: nowrap;\n\tcursor: default;\n\tvertical-align: middle;\n\tpadding: var(--ck-spacing-tiny);\n\ttext-align: center;\n\n\t/* A very important piece of styling. Go to variable declaration to learn more. */\n\tmin-width: var(--ck-ui-component-min-height);\n\tmin-height: var(--ck-ui-component-min-height);\n\n\t/* Normalize the height of the line. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-dropdown-max-width: 75vw;\n}\n\n.ck.ck-dropdown {\n\tdisplay: inline-block;\n\tposition: relative;\n\n\t& .ck-dropdown__arrow {\n\t\tpointer-events: none;\n\t\tz-index: var(--ck-z-default);\n\t}\n\n\t/* Dropdown button should span horizontally, e.g. in vertical toolbars */\n\t& .ck-button.ck-dropdown__button {\n\t\twidth: 100%;\n\t}\n\n\t& .ck-dropdown__panel {\n\t\tdisplay: none;\n\t\tz-index: var(--ck-z-modal);\n\t\tmax-width: var(--ck-dropdown-max-width);\n\n\t\tposition: absolute;\n\n\t\t&.ck-dropdown__panel-visible {\n\t\t\tdisplay: inline-block;\n\t\t}\n\n\t\t&.ck-dropdown__panel_ne,\n\t\t&.ck-dropdown__panel_nw,\n\t\t&.ck-dropdown__panel_n,\n\t\t&.ck-dropdown__panel_nmw,\n\t\t&.ck-dropdown__panel_nme {\n\t\t\tbottom: 100%;\n\t\t}\n\n\t\t&.ck-dropdown__panel_se,\n\t\t&.ck-dropdown__panel_sw,\n\t\t&.ck-dropdown__panel_smw,\n\t\t&.ck-dropdown__panel_sme,\n\t\t&.ck-dropdown__panel_s {\n\t\t\t/*\n\t\t\t * Using transform: translate3d( 0, 100%, 0 ) causes blurry dropdown on Chrome 67-78+ on non-retina displays.\n\t\t\t * See https://github.com/ckeditor/ckeditor5/issues/1053.\n\t\t\t */\n\t\t\ttop: 100%;\n\t\t\tbottom: auto;\n\t\t}\n\n\t\t&.ck-dropdown__panel_ne,\n\t\t&.ck-dropdown__panel_se {\n\t\t\tleft: 0px;\n\t\t}\n\n\t\t&.ck-dropdown__panel_nw,\n\t\t&.ck-dropdown__panel_sw {\n\t\t\tright: 0px;\n\t\t}\n\n\t\t&.ck-dropdown__panel_s,\n\t\t&.ck-dropdown__panel_n {\n\t\t\t/* Positioning panels relative to the center of the button */\n\t\t\tleft: 50%;\n\t\t\ttransform: translateX(-50%);\n\t\t}\n\n\t\t&.ck-dropdown__panel_nmw,\n\t\t&.ck-dropdown__panel_smw {\n\t\t\t/* Positioning panels relative to the middle-west of the button */\n\t\t\tleft: 75%;\n\t\t\ttransform: translateX(-75%);\n\t\t}\n\n\t\t&.ck-dropdown__panel_nme,\n\t\t&.ck-dropdown__panel_sme {\n\t\t\t/* Positioning panels relative to the middle-east of the button */\n\t\t\tleft: 25%;\n\t\t\ttransform: translateX(-25%);\n\t\t}\n\t}\n}\n\n/*\n * Toolbar dropdown panels should be always above the UI (eg. other dropdown panels) from the editor's content.\n * See https://github.com/ckeditor/ckeditor5/issues/7874\n */\n.ck.ck-toolbar .ck-dropdown__panel {\n\tz-index: calc( var(--ck-z-modal) + 1 );\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_disabled.css";\n@import "../../../mixins/_shadow.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n:root {\n\t--ck-dropdown-arrow-size: calc(0.5 * var(--ck-icon-size));\n}\n\n.ck.ck-dropdown {\n\t/* Enable font size inheritance, which allows fluid UI scaling. */\n\tfont-size: inherit;\n\n\t& .ck-dropdown__arrow {\n\t\twidth: var(--ck-dropdown-arrow-size);\n\t}\n\n\t@mixin ck-dir ltr {\n\t\t& .ck-dropdown__arrow {\n\t\t\tright: var(--ck-spacing-standard);\n\n\t\t\t/* A space to accommodate the triangle. */\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-dir rtl {\n\t\t& .ck-dropdown__arrow {\n\t\t\tleft: var(--ck-spacing-standard);\n\n\t\t\t/* A space to accommodate the triangle. */\n\t\t\tmargin-right: var(--ck-spacing-small);\n\t\t}\n\t}\n\n\t&.ck-disabled .ck-dropdown__arrow {\n\t\t@mixin ck-disabled;\n\t}\n\n\t& .ck-button.ck-dropdown__button {\n\t\t@mixin ck-dir ltr {\n\t\t\t&:not(.ck-button_with-text) {\n\t\t\t\t/* Make sure dropdowns with just an icon have the right inner spacing */\n\t\t\t\tpadding-left: var(--ck-spacing-small);\n\t\t\t}\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\t&:not(.ck-button_with-text) {\n\t\t\t\t/* Make sure dropdowns with just an icon have the right inner spacing */\n\t\t\t\tpadding-right: var(--ck-spacing-small);\n\t\t\t}\n\t\t}\n\n\t\t/* #23 */\n\t\t& .ck-button__label {\n\t\t\twidth: 7em;\n\t\t\toverflow: hidden;\n\t\t\ttext-overflow: ellipsis;\n\t\t}\n\n\t\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/70 */\n\t\t&.ck-disabled .ck-button__label {\n\t\t\t@mixin ck-disabled;\n\t\t}\n\n\t\t/* https://github.com/ckeditor/ckeditor5/issues/816 */\n\t\t&.ck-on {\n\t\t\tborder-bottom-left-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\n\t\t&.ck-dropdown__button_label-width_auto .ck-button__label {\n\t\t\twidth: auto;\n\t\t}\n\n\t\t/* https://github.com/ckeditor/ckeditor5/issues/8699 */\n\t\t&.ck-off:active,\n\t\t&.ck-on:active {\n\t\t\tbox-shadow: none;\n\t\t\t\n\t\t\t&:focus {\n\t\t\t\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\n\t\t\t}\n\t\t}\n\t}\n}\n\n.ck.ck-dropdown__panel {\n\t@mixin ck-rounded-corners;\n\t@mixin ck-drop-shadow;\n\n\tbackground: var(--ck-color-dropdown-panel-background);\n\tborder: 1px solid var(--ck-color-dropdown-panel-border);\n\tbottom: 0;\n\n\t/* Make sure the panel is at least as wide as the drop-down\'s button. */\n\tmin-width: 100%;\n\n\t/* Disabled corner border radius to be consistent with the .dropdown__button\n\thttps://github.com/ckeditor/ckeditor5/issues/816 */\n\t&.ck-dropdown__panel_se {\n\t\tborder-top-left-radius: 0;\n\t}\n\n\t&.ck-dropdown__panel_sw {\n\t\tborder-top-right-radius: 0;\n\t}\n\n\t&.ck-dropdown__panel_ne {\n\t\tborder-bottom-left-radius: 0;\n\t}\n\n\t&.ck-dropdown__panel_nw {\n\t\tborder-bottom-right-radius: 0;\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A class which indicates that an element holding it is disabled.\n */\n@define-mixin ck-disabled {\n\topacity: var(--ck-disabled-opacity);\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},3949:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-dropdown .ck-dropdown__panel .ck-list{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list,.ck.ck-dropdown .ck-dropdown__panel .ck-list.ck-rounded-corners{border-radius:var(--ck-border-radius);border-top-left-radius:0}.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button,.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius);border-bottom-left-radius:0;border-bottom-right-radius:0;border-top-left-radius:0}.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button,.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius);border-top-left-radius:0;border-top-right-radius:0}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/listdropdown.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css"],names:[],mappings:"AAOA,6CCIC,eDqBD,CAzBA,iICQE,qCAAsC,CDJtC,wBAqBF,CAfE,mFCND,eDYC,CANA,6MCFA,qCAAsC,CDKpC,2BAA4B,CAC5B,4BAA6B,CAF7B,wBAIF,CAEA,kFCdD,eDmBC,CALA,2MCVA,qCAAsC,CDYpC,wBAAyB,CACzB,yBAEF",sourcesContent:['/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n\n.ck.ck-dropdown .ck-dropdown__panel .ck-list {\n\t/* Disabled radius of top-left border to be consistent with .dropdown__button\n\thttps://github.com/ckeditor/ckeditor5/issues/816 */\n\t@mixin ck-rounded-corners {\n\t\tborder-top-left-radius: 0;\n\t}\n\n\t/* Make sure the button belonging to the first/last child of the list goes well with the\n\tborder radius of the entire panel. */\n\t& .ck-list__item {\n\t\t&:first-child .ck-button {\n\t\t\t@mixin ck-rounded-corners {\n\t\t\t\tborder-top-left-radius: 0;\n\t\t\t\tborder-bottom-left-radius: 0;\n\t\t\t\tborder-bottom-right-radius: 0;\n\t\t\t}\n\t\t}\n\n\t\t&:last-child .ck-button {\n\t\t\t@mixin ck-rounded-corners {\n\t\t\t\tborder-top-left-radius: 0;\n\t\t\t\tborder-top-right-radius: 0;\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},7686:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,'.ck.ck-splitbutton{font-size:inherit}.ck.ck-splitbutton .ck-splitbutton__action:focus{z-index:calc(var(--ck-z-default) + 1)}:root{--ck-color-split-button-hover-background:#ebebeb;--ck-color-split-button-hover-border:#b3b3b3}[dir=ltr] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,[dir=ltr] .ck.ck-splitbutton:hover>.ck-splitbutton__action{border-bottom-right-radius:unset;border-top-right-radius:unset}[dir=rtl] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,[dir=rtl] .ck.ck-splitbutton:hover>.ck-splitbutton__action{border-bottom-left-radius:unset;border-top-left-radius:unset}.ck.ck-splitbutton>.ck-splitbutton__arrow{min-width:unset}[dir=ltr] .ck.ck-splitbutton>.ck-splitbutton__arrow{border-bottom-left-radius:unset;border-top-left-radius:unset}[dir=rtl] .ck.ck-splitbutton>.ck-splitbutton__arrow{border-bottom-right-radius:unset;border-top-right-radius:unset}.ck.ck-splitbutton>.ck-splitbutton__arrow svg{width:var(--ck-dropdown-arrow-size)}.ck.ck-splitbutton>.ck-splitbutton__arrow:not(:focus){border-bottom-width:0;border-top-width:0}.ck.ck-splitbutton.ck-splitbutton_open>.ck-button:not(.ck-on):not(.ck-disabled):not(:hover),.ck.ck-splitbutton:hover>.ck-button:not(.ck-on):not(.ck-disabled):not(:hover){background:var(--ck-color-split-button-hover-background)}.ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,.ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{background-color:var(--ck-color-split-button-hover-border);content:"";height:100%;position:absolute;width:1px}.ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:focus:after,.ck.ck-splitbutton:hover>.ck-splitbutton__arrow:focus:after{--ck-color-split-button-hover-border:var(--ck-color-focus-border)}[dir=ltr] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,[dir=ltr] .ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{left:-1px}[dir=rtl] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,[dir=rtl] .ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{right:-1px}.ck.ck-splitbutton.ck-splitbutton_open{border-radius:0}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners>.ck-splitbutton__action{border-bottom-left-radius:0}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners>.ck-splitbutton__arrow{border-bottom-right-radius:0}',"",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/dropdown/splitbutton.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/splitbutton.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css"],names:[],mappings:"AAKA,mBAEC,iBAKD,CAHC,iDACC,qCACD,CCJD,MACC,gDAAyD,CACzD,4CACD,CAMC,oIAKE,gCAAiC,CADjC,6BASF,CAbA,oIAWE,+BAAgC,CADhC,4BAGF,CAEA,0CAGC,eAiBD,CApBA,oDAQE,+BAAgC,CADhC,4BAaF,CApBA,oDAcE,gCAAiC,CADjC,6BAOF,CAHC,8CACC,mCACD,CAKD,sDAEC,qBAAwB,CADxB,kBAED,CAQC,0KACC,wDACD,CAIA,8JAKC,0DAA2D,CAJ3D,UAAW,CAGX,WAAY,CAFZ,iBAAkB,CAClB,SAGD,CAGA,sIACC,iEACD,CAGC,kLACC,SACD,CAIA,kLACC,UACD,CAMF,uCCzFA,eDmGA,CAVA,qHCrFC,qCD+FD,CARE,qKACC,2BACD,CAEA,mKACC,4BACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-splitbutton {\n\t/* Enable font size inheritance, which allows fluid UI scaling. */\n\tfont-size: inherit;\n\n\t& .ck-splitbutton__action:focus {\n\t\tz-index: calc(var(--ck-z-default) + 1);\n\t}\n}\n\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n\n:root {\n\t--ck-color-split-button-hover-background: hsl(0, 0%, 92%);\n\t--ck-color-split-button-hover-border: hsl(0, 0%, 70%);\n}\n\n.ck.ck-splitbutton {\n\t/*\n\t * Note: ck-rounded and ck-dir mixins don\'t go together (because they both use @nest).\n\t */\n\t&:hover > .ck-splitbutton__action,\n\t&.ck-splitbutton_open > .ck-splitbutton__action {\n\t\t@nest [dir="ltr"] & {\n\t\t\t/* Don\'t round the action button on the right side */\n\t\t\tborder-top-right-radius: unset;\n\t\t\tborder-bottom-right-radius: unset;\n\t\t}\n\n\t\t@nest [dir="rtl"] & {\n\t\t\t/* Don\'t round the action button on the left side */\n\t\t\tborder-top-left-radius: unset;\n\t\t\tborder-bottom-left-radius: unset;\n\t\t}\n\t}\n\n\t& > .ck-splitbutton__arrow {\n\t\t/* It\'s a text-less button and since the icon is positioned absolutely in such situation,\n\t\tit must get some arbitrary min-width. */\n\t\tmin-width: unset;\n\n\t\t@nest [dir="ltr"] & {\n\t\t\t/* Don\'t round the arrow button on the left side */\n\t\t\tborder-top-left-radius: unset;\n\t\t\tborder-bottom-left-radius: unset;\n\t\t}\n\n\t\t@nest [dir="rtl"] & {\n\t\t\t/* Don\'t round the arrow button on the right side */\n\t\t\tborder-top-right-radius: unset;\n\t\t\tborder-bottom-right-radius: unset;\n\t\t}\n\n\t\t& svg {\n\t\t\twidth: var(--ck-dropdown-arrow-size);\n\t\t}\n\t}\n\n\t/* Make sure the divider stretches 100% height of the button\n\thttps://github.com/ckeditor/ckeditor5/issues/10936 */\n\t& > .ck-splitbutton__arrow:not(:focus) {\n\t\tborder-top-width: 0px;\n\t\tborder-bottom-width: 0px;\n\t}\n\n\t/* When the split button is "open" (the arrow is on) or being hovered, it should get some styling\n\tas a whole. The background of both buttons should stand out and there should be a visual\n\tseparation between both buttons. */\n\t&.ck-splitbutton_open,\n\t&:hover {\n\t\t/* When the split button hovered as a whole, not as individual buttons. */\n\t\t& > .ck-button:not(.ck-on):not(.ck-disabled):not(:hover) {\n\t\t\tbackground: var(--ck-color-split-button-hover-background);\n\t\t}\n\n\t\t/* Splitbutton separator needs to be set with the ::after pseudoselector\n\t\tto display properly the borders on focus */\n\t\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\n\t\t\tcontent: \'\';\n\t\t\tposition: absolute;\n\t\t\twidth: 1px;\n\t\t\theight: 100%;\n\t\t\tbackground-color: var(--ck-color-split-button-hover-border);\n\t\t}\n\n\t\t/* Make sure the divider between the buttons looks fine when the button is focused */\n\t\t& > .ck-splitbutton__arrow:focus::after {\n\t\t\t--ck-color-split-button-hover-border: var(--ck-color-focus-border);\n\t\t}\n\n\t\t@nest [dir="ltr"] & {\n\t\t\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\n\t\t\t\tleft: -1px;\n\t\t\t}\n\t\t}\n\n\t\t@nest [dir="rtl"] & {\n\t\t\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\n\t\t\t\tright: -1px;\n\t\t\t}\n\t\t}\n\t}\n\n\t/* Don\'t round the bottom left and right corners of the buttons when "open"\n\thttps://github.com/ckeditor/ckeditor5/issues/816 */\n\t&.ck-splitbutton_open {\n\t\t@mixin ck-rounded-corners {\n\t\t\t& > .ck-splitbutton__action {\n\t\t\t\tborder-bottom-left-radius: 0;\n\t\t\t}\n\n\t\t\t& > .ck-splitbutton__arrow {\n\t\t\t\tborder-bottom-right-radius: 0;\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},7339:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-toolbar-dropdown-max-width:60vw}.ck.ck-toolbar-dropdown>.ck-dropdown__panel{max-width:var(--ck-toolbar-dropdown-max-width);width:max-content}.ck.ck-toolbar-dropdown>.ck-dropdown__panel .ck-button:focus{z-index:calc(var(--ck-z-default) + 1)}.ck.ck-toolbar-dropdown .ck-toolbar{border:0}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/dropdown/toolbardropdown.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/toolbardropdown.css"],names:[],mappings:"AAKA,MACC,oCACD,CAEA,4CAGC,8CAA+C,CAD/C,iBAQD,CAJE,6DACC,qCACD,CCZF,oCACC,QACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-toolbar-dropdown-max-width: 60vw;\n}\n\n.ck.ck-toolbar-dropdown > .ck-dropdown__panel {\n\t/* https://github.com/ckeditor/ckeditor5/issues/5586 */\n\twidth: max-content;\n\tmax-width: var(--ck-toolbar-dropdown-max-width);\n\n\t& .ck-button {\n\t\t&:focus {\n\t\t\tz-index: calc(var(--ck-z-default) + 1);\n\t\t}\n\t}\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-toolbar-dropdown .ck-toolbar {\n\tborder: 0;\n}\n"],sourceRoot:""}]);const a=s},9688:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-color-editable-blur-selection:#d9d9d9}.ck.ck-editor__editable:not(.ck-editor__nested-editable){border-radius:0}.ck-rounded-corners .ck.ck-editor__editable:not(.ck-editor__nested-editable),.ck.ck-editor__editable.ck-rounded-corners:not(.ck-editor__nested-editable){border-radius:var(--ck-border-radius)}.ck.ck-editor__editable.ck-focused:not(.ck-editor__nested-editable){border:var(--ck-focus-ring);box-shadow:var(--ck-inner-shadow),0 0;outline:none}.ck.ck-editor__editable_inline{border:1px solid transparent;overflow:auto;padding:0 var(--ck-spacing-standard)}.ck.ck-editor__editable_inline[dir=ltr]{text-align:left}.ck.ck-editor__editable_inline[dir=rtl]{text-align:right}.ck.ck-editor__editable_inline>:first-child{margin-top:var(--ck-spacing-large)}.ck.ck-editor__editable_inline>:last-child{margin-bottom:var(--ck-spacing-large)}.ck.ck-editor__editable_inline.ck-blurred ::selection{background:var(--ck-color-editable-blur-selection)}.ck.ck-balloon-panel.ck-toolbar-container[class*=arrow_n]:after{border-bottom-color:var(--ck-color-base-foreground)}.ck.ck-balloon-panel.ck-toolbar-container[class*=arrow_s]:after{border-top-color:var(--ck-color-base-foreground)}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/editorui/editorui.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css"],names:[],mappings:"AAWA,MACC,0CACD,CAEA,yDCJC,eDWD,CAPA,yJCAE,qCDOF,CAJC,oEEPA,2BAA2B,CCF3B,qCAA8B,CDC9B,YFWA,CAGD,+BAGC,4BAA6B,CAF7B,aAAc,CACd,oCA6BD,CA1BC,wCACC,eACD,CAEA,wCACC,gBACD,CAGA,4CACC,kCACD,CAGA,2CAKC,qCACD,CAGA,sDACC,kDACD,CAKA,gEACC,mDACD,CAIA,gEACC,gDACD",sourcesContent:['/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_disabled.css";\n@import "../../../mixins/_shadow.css";\n@import "../../../mixins/_focus.css";\n@import "../../mixins/_button.css";\n\n:root {\n\t--ck-color-editable-blur-selection: hsl(0, 0%, 85%);\n}\n\n.ck.ck-editor__editable:not(.ck-editor__nested-editable) {\n\t@mixin ck-rounded-corners;\n\n\t&.ck-focused {\n\t\t@mixin ck-focus-ring;\n\t\t@mixin ck-box-shadow var(--ck-inner-shadow);\n\t}\n}\n\n.ck.ck-editor__editable_inline {\n\toverflow: auto;\n\tpadding: 0 var(--ck-spacing-standard);\n\tborder: 1px solid transparent;\n\n\t&[dir="ltr"] {\n\t\ttext-align: left;\n\t}\n\n\t&[dir="rtl"] {\n\t\ttext-align: right;\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/116 */\n\t& > *:first-child {\n\t\tmargin-top: var(--ck-spacing-large);\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5/issues/847 */\n\t& > *:last-child {\n\t\t/*\n\t\t * This value should match with the default margins of the block elements (like .media or .image)\n\t\t * to avoid a content jumping when the fake selection container shows up (See https://github.com/ckeditor/ckeditor5/issues/9825).\n\t\t */\n\t\tmargin-bottom: var(--ck-spacing-large);\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5/issues/6517 */\n\t&.ck-blurred ::selection {\n\t\tbackground: var(--ck-color-editable-blur-selection);\n\t}\n}\n\n/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/111 */\n.ck.ck-balloon-panel.ck-toolbar-container[class*="arrow_n"] {\n\t&::after {\n\t\tborder-bottom-color: var(--ck-color-base-foreground);\n\t}\n}\n\n.ck.ck-balloon-panel.ck-toolbar-container[class*="arrow_s"] {\n\t&::after {\n\t\tborder-top-color: var(--ck-color-base-foreground);\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},8847:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-form__header{align-items:center;display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:space-between}:root{--ck-form-header-height:38px}.ck.ck-form__header{border-bottom:1px solid var(--ck-color-base-border);height:var(--ck-form-header-height);line-height:var(--ck-form-header-height);padding:var(--ck-spacing-small) var(--ck-spacing-large)}.ck.ck-form__header .ck-form__header__label{font-weight:700}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/formheader/formheader.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/formheader/formheader.css"],names:[],mappings:"AAKA,oBAIC,kBAAmB,CAHnB,YAAa,CACb,kBAAmB,CACnB,gBAAiB,CAEjB,6BACD,CCNA,MACC,4BACD,CAEA,oBAIC,mDAAoD,CAFpD,mCAAoC,CACpC,wCAAyC,CAFzC,uDAQD,CAHC,4CACC,eACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-form-header-height: 38px;\n}\n\n.ck.ck-form__header {\n\tpadding: var(--ck-spacing-small) var(--ck-spacing-large);\n\theight: var(--ck-form-header-height);\n\tline-height: var(--ck-form-header-height);\n\tborder-bottom: 1px solid var(--ck-color-base-border);\n\n\t& .ck-form__header__label {\n\t\tfont-weight: bold;\n\t}\n}\n"],sourceRoot:""}]);const a=s},6574:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-icon{vertical-align:middle}:root{--ck-icon-size:calc(var(--ck-line-height-base)*var(--ck-font-size-normal))}.ck.ck-icon{font-size:.8333350694em;height:var(--ck-icon-size);width:var(--ck-icon-size);will-change:transform}.ck.ck-icon,.ck.ck-icon *{cursor:inherit}.ck.ck-icon.ck-icon_inherit-color,.ck.ck-icon.ck-icon_inherit-color *{color:inherit}.ck.ck-icon.ck-icon_inherit-color :not([fill]){fill:currentColor}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/icon/icon.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/icon/icon.css"],names:[],mappings:"AAKA,YACC,qBACD,CCFA,MACC,0EACD,CAEA,YAKC,uBAAwB,CAHxB,0BAA2B,CAD3B,yBAA0B,CAU1B,qBAoBD,CAlBC,0BALA,cAQA,CAMC,sEACC,aAMD,CAJC,+CAEC,iBACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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See #340. */\n\twill-change: transform;\n\n\t& * {\n\t\t/* Inherit cursor style (#5). */\n\t\tcursor: inherit;\n\t}\n\n\t/* Allows dynamic coloring of an icon by inheriting its color from the parent. */\n\t&.ck-icon_inherit-color {\n\t\tcolor: inherit;\n\n\t\t& * {\n\t\t\tcolor: inherit;\n\n\t\t\t&:not([fill]) {\n\t\t\t\t/* Needed by FF. */\n\t\t\t\tfill: currentColor;\n\t\t\t}\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},4879:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-input-width:18em;--ck-input-text-width:var(--ck-input-width)}.ck.ck-input{border-radius:0}.ck-rounded-corners .ck.ck-input,.ck.ck-input.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-input{background:var(--ck-color-input-background);border:1px solid var(--ck-color-input-border);min-height:var(--ck-ui-component-min-height);min-width:var(--ck-input-width);padding:var(--ck-spacing-extra-tiny) var(--ck-spacing-medium);transition:box-shadow .1s ease-in-out,border .1s ease-in-out}.ck.ck-input:focus{border:var(--ck-focus-ring);box-shadow:var(--ck-focus-outer-shadow),0 0;outline:none}.ck.ck-input[readonly]{background:var(--ck-color-input-disabled-background);border:1px solid var(--ck-color-input-disabled-border);color:var(--ck-color-input-disabled-text)}.ck.ck-input[readonly]:focus{box-shadow:var(--ck-focus-disabled-outer-shadow),0 0}.ck.ck-input.ck-error{animation:ck-input-shake .3s ease both;border-color:var(--ck-color-input-error-border)}.ck.ck-input.ck-error:focus{box-shadow:var(--ck-focus-error-outer-shadow),0 0}@keyframes ck-input-shake{20%{transform:translateX(-2px)}40%{transform:translateX(2px)}60%{transform:translateX(-1px)}80%{transform:translateX(1px)}}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/input/input.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css"],names:[],mappings:"AASA,MACC,qBAAsB,CAGtB,2CACD,CAEA,aCLC,eD2CD,CAtCA,iECDE,qCDuCF,CAtCA,aAGC,2CAA4C,CAC5C,6CAA8C,CAK9C,4CAA6C,CAH7C,+BAAgC,CADhC,6DAA8D,CAO9D,4DA0BD,CAxBC,mBEnBA,2BAA2B,CCF3B,2CAA8B,CDC9B,YFuBA,CAEA,uBAEC,oDAAqD,CADrD,sDAAuD,CAEvD,yCAMD,CAJC,6BG/BD,oDHkCC,CAGD,sBAEC,sCAAuC,CADvC,+CAMD,CAHC,4BGzCD,iDH2CC,CAIF,0BACC,IACC,0BACD,CAEA,IACC,yBACD,CAEA,IACC,0BACD,CAEA,IACC,yBACD,CACD",sourcesContent:['/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_focus.css";\n@import "../../../mixins/_shadow.css";\n\n:root {\n\t--ck-input-width: 18em;\n\n\t/* Backward compatibility. */\n\t--ck-input-text-width: var(--ck-input-width);\n}\n\n.ck.ck-input {\n\t@mixin ck-rounded-corners;\n\n\tbackground: var(--ck-color-input-background);\n\tborder: 1px solid var(--ck-color-input-border);\n\tpadding: var(--ck-spacing-extra-tiny) var(--ck-spacing-medium);\n\tmin-width: var(--ck-input-width);\n\n\t/* This is important to stay of the same height as surrounding buttons */\n\tmin-height: var(--ck-ui-component-min-height);\n\n\t/* Apply some smooth transition to the box-shadow and border. */\n\ttransition: box-shadow .1s ease-in-out, border .1s ease-in-out;\n\n\t&:focus {\n\t\t@mixin ck-focus-ring;\n\t\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\n\t}\n\n\t&[readonly] {\n\t\tborder: 1px solid var(--ck-color-input-disabled-border);\n\t\tbackground: var(--ck-color-input-disabled-background);\n\t\tcolor: var(--ck-color-input-disabled-text);\n\n\t\t&:focus {\n\t\t\t/* The read-only input should have a slightly less visible shadow when focused. */\n\t\t\t@mixin ck-box-shadow var(--ck-focus-disabled-outer-shadow);\n\t\t}\n\t}\n\n\t&.ck-error {\n\t\tborder-color: var(--ck-color-input-error-border);\n\t\tanimation: ck-input-shake .3s ease both;\n\n\t\t&:focus {\n\t\t\t@mixin ck-box-shadow var(--ck-focus-error-outer-shadow);\n\t\t}\n\t}\n}\n\n@keyframes ck-input-shake {\n\t20% {\n\t\ttransform: translateX(-2px);\n\t}\n\n\t40% {\n\t\ttransform: translateX(2px);\n\t}\n\n\t60% {\n\t\ttransform: translateX(-1px);\n\t}\n\n\t80% {\n\t\ttransform: translateX(1px);\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},3662:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-label{display:block}.ck.ck-voice-label{display:none}.ck.ck-label{font-weight:700}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/label/label.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/label/label.css"],names:[],mappings:"AAKA,aACC,aACD,CAEA,mBACC,YACD,CCNA,aACC,eACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-label {\n\tdisplay: block;\n}\n\n.ck.ck-voice-label {\n\tdisplay: none;\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-label {\n\tfont-weight: bold;\n}\n"],sourceRoot:""}]);const a=s},2577:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{display:flex;position:relative}.ck.ck-labeled-field-view .ck.ck-label{display:block;position:absolute}:root{--ck-labeled-field-view-transition:.1s cubic-bezier(0,0,0.24,0.95);--ck-labeled-field-empty-unfocused-max-width:100% - 2 * var(--ck-spacing-medium);--ck-labeled-field-label-default-position-x:var(--ck-spacing-medium);--ck-labeled-field-label-default-position-y:calc(var(--ck-font-size-base)*0.6);--ck-color-labeled-field-label-background:var(--ck-color-base-background)}.ck.ck-labeled-field-view{border-radius:0}.ck-rounded-corners .ck.ck-labeled-field-view,.ck.ck-labeled-field-view.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{width:100%}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{top:0}[dir=ltr] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{left:0}[dir=rtl] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{right:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:var(--ck-color-labeled-field-label-background);font-weight:400;line-height:normal;max-width:100%;overflow:hidden;padding:0 calc(var(--ck-font-size-tiny)*.5);pointer-events:none;text-overflow:ellipsis;transform:translate(var(--ck-spacing-medium),-6px) scale(.75);transform-origin:0 0;transition:transform var(--ck-labeled-field-view-transition),padding var(--ck-labeled-field-view-transition),background var(--ck-labeled-field-view-transition)}.ck.ck-labeled-field-view.ck-error .ck-input:not([readonly])+.ck.ck-label,.ck.ck-labeled-field-view.ck-error>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view .ck-labeled-field-view__status{font-size:var(--ck-font-size-small);margin-top:var(--ck-spacing-small);white-space:normal}.ck.ck-labeled-field-view .ck-labeled-field-view__status.ck-labeled-field-view__status_error{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view.ck-disabled>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-input-disabled-text)}[dir=ltr] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=ltr] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(var(--ck-labeled-field-label-default-position-x),var(--ck-labeled-field-label-default-position-y)) scale(1)}[dir=rtl] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=rtl] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(calc(var(--ck-labeled-field-label-default-position-x)*-1),var(--ck-labeled-field-label-default-position-y)) scale(1)}.ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:transparent;max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width));padding:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck.ck-button{background:transparent}.ck.ck-labeled-field-view.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck-button>.ck-button__label{opacity:0}.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown+.ck-label{max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width) - 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-labeled-field-view {\n\t& > .ck.ck-labeled-field-view__input-wrapper {\n\t\tdisplay: flex;\n\t\tposition: relative;\n\t}\n\n\t& .ck.ck-label {\n\t\tdisplay: block;\n\t\tposition: absolute;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n@import "../../../mixins/_rounded.css";\n\n:root {\n\t--ck-labeled-field-view-transition: .1s cubic-bezier(0, 0, 0.24, 0.95);\n\t--ck-labeled-field-empty-unfocused-max-width: 100% - 2 * var(--ck-spacing-medium);\n\t--ck-labeled-field-label-default-position-x: var(--ck-spacing-medium);\n\t--ck-labeled-field-label-default-position-y: calc(0.6 * var(--ck-font-size-base));\n\t--ck-color-labeled-field-label-background: var(--ck-color-base-background);\n}\n\n.ck.ck-labeled-field-view {\n\t@mixin ck-rounded-corners;\n\n\t& > .ck.ck-labeled-field-view__input-wrapper {\n\t\twidth: 100%;\n\n\t\t& > .ck.ck-label {\n\t\t\ttop: 0px;\n\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tleft: 0px;\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tright: 0px;\n\t\t\t}\n\n\t\t\tpointer-events: none;\n\t\t\ttransform-origin: 0 0;\n\n\t\t\t/* By default, display the label scaled down above the field. */\n\t\t\ttransform: translate(var(--ck-spacing-medium), -6px) scale(.75);\n\n\t\t\tbackground: var(--ck-color-labeled-field-label-background);\n\t\t\tpadding: 0 calc(.5 * var(--ck-font-size-tiny));\n\t\t\tline-height: initial;\n\t\t\tfont-weight: normal;\n\n\t\t\t/* Prevent overflow when the label is longer than the input */\n\t\t\ttext-overflow: ellipsis;\n\t\t\toverflow: hidden;\n\n\t\t\tmax-width: 100%;\n\n\t\t\ttransition:\n\t\t\t\ttransform var(--ck-labeled-field-view-transition),\n\t\t\t\tpadding var(--ck-labeled-field-view-transition),\n\t\t\t\tbackground var(--ck-labeled-field-view-transition);\n\t\t}\n\t}\n\n\t&.ck-error {\n\t\t& > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\n\t\t\tcolor: var(--ck-color-base-error);\n\t\t}\n\n\t\t& .ck-input:not([readonly]) + .ck.ck-label {\n\t\t\tcolor: var(--ck-color-base-error);\n\t\t}\n\t}\n\n\t& .ck-labeled-field-view__status {\n\t\tfont-size: var(--ck-font-size-small);\n\t\tmargin-top: var(--ck-spacing-small);\n\n\t\t/* Let the info wrap to the next line to avoid stretching the layout horizontally.\n\t\tThe status could be very long. */\n\t\twhite-space: normal;\n\n\t\t&.ck-labeled-field-view__status_error {\n\t\t\tcolor: var(--ck-color-base-error);\n\t\t}\n\t}\n\n\t/* Disabled fields and fields that have no focus should fade out. */\n\t&.ck-disabled > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\n\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\n\t\tcolor: var(--ck-color-input-disabled-text);\n\t}\n\n\t/* Fields that are disabled or not focused and without a placeholder should have full-sized labels. */\n\t/* stylelint-disable-next-line no-descending-specificity */\n\t&.ck-disabled.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\n\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\n\t\t@mixin ck-dir ltr {\n\t\t\ttransform: translate(var(--ck-labeled-field-label-default-position-x), var(--ck-labeled-field-label-default-position-y)) scale(1);\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\ttransform: translate(calc(-1 * var(--ck-labeled-field-label-default-position-x)), var(--ck-labeled-field-label-default-position-y)) scale(1);\n\t\t}\n\n\t\t/* Compensate for the default translate position. */\n\t\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width));\n\n\t\tbackground: transparent;\n\t\tpadding: 0;\n\t}\n\n\t/*------ DropdownView integration ----------------------------------------------------------------------------------- */\n\n\t/* Make sure dropdown\' background color in any of dropdown\'s state does not collide with labeled field. */\n\t& > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck.ck-button {\n\t\tbackground: transparent;\n\t}\n\n\t/* When the dropdown is "empty", the labeled field label replaces its label. */\n\t&.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck-button > .ck-button__label {\n\t\topacity: 0;\n\t}\n\n\t/* Make sure the label of the empty, unfocused input does not cover the dropdown arrow. */\n\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown + .ck-label {\n\t\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width) - var(--ck-dropdown-arrow-size) - var(--ck-spacing-standard));\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},2053:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-labeled-input .ck-labeled-input__status{font-size:var(--ck-font-size-small);margin-top:var(--ck-spacing-small);white-space:normal}.ck.ck-labeled-input .ck-labeled-input__status_error{color:var(--ck-color-base-error)}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/labeledinput/labeledinput.css"],names:[],mappings:"AAKA,+CACC,mCAAoC,CACpC,kCAAmC,CAInC,kBACD,CAEA,qDACC,gCACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t/* Make sure the balloon arrow does not float over its children. */\n\t--ck-balloon-panel-arrow-z-index: calc(var(--ck-z-default) - 3);\n}\n\n.ck.ck-balloon-panel {\n\tdisplay: none;\n\tposition: absolute;\n\n\tz-index: var(--ck-z-modal);\n\n\t&.ck-balloon-panel_with-arrow {\n\t\t&::before,\n\t\t&::after {\n\t\t\tcontent: "";\n\t\t\tposition: absolute;\n\t\t}\n\n\t\t&::before {\n\t\t\tz-index: var(--ck-balloon-panel-arrow-z-index);\n\t\t}\n\n\t\t&::after {\n\t\t\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\n\t\t}\n\t}\n\n\t&[class*="arrow_n"] {\n\t\t&::before {\n\t\t\tz-index: var(--ck-balloon-panel-arrow-z-index);\n\t\t}\n\n\t\t&::after {\n\t\t\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\n\t\t}\n\t}\n\n\t&[class*="arrow_s"] {\n\t\t&::before {\n\t\t\tz-index: var(--ck-balloon-panel-arrow-z-index);\n\t\t}\n\n\t\t&::after {\n\t\t\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_visible {\n\t\tdisplay: block;\n\t}\n}\n','/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_shadow.css";\n\n:root {\n\t--ck-balloon-border-width: 1px;\n\t--ck-balloon-arrow-offset: 2px;\n\t--ck-balloon-arrow-height: 10px;\n\t--ck-balloon-arrow-half-width: 8px;\n\t--ck-balloon-arrow-drop-shadow: 0 2px 2px var(--ck-color-shadow-drop);\n}\n\n.ck.ck-balloon-panel {\n\t@mixin ck-rounded-corners;\n\t@mixin ck-drop-shadow;\n\n\tmin-height: 15px;\n\n\tbackground: var(--ck-color-panel-background);\n\tborder: var(--ck-balloon-border-width) solid var(--ck-color-panel-border);\n\n\t&.ck-balloon-panel_with-arrow {\n\t\t&::before,\n\t\t&::after {\n\t\t\twidth: 0;\n\t\t\theight: 0;\n\t\t\tborder-style: solid;\n\t\t}\n\t}\n\n\t&[class*="arrow_n"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width);\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: transparent transparent var(--ck-color-panel-border) transparent;\n\t\t\tmargin-top: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: transparent transparent var(--ck-color-panel-background) transparent;\n\t\t\tmargin-top: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&[class*="arrow_s"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width);\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: var(--ck-color-panel-border) transparent transparent;\n\t\t\tfilter: drop-shadow(var(--ck-balloon-arrow-drop-shadow));\n\t\t\tmargin-bottom: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: var(--ck-color-panel-background) transparent transparent transparent;\n\t\t\tmargin-bottom: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&[class*="arrow_e"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height);\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: transparent transparent transparent var(--ck-color-panel-border);\n\t\t\tmargin-right: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: transparent transparent transparent var(--ck-color-panel-background);\n\t\t\tmargin-right: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&[class*="arrow_w"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0;\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: transparent var(--ck-color-panel-border) transparent transparent;\n\t\t\tmargin-left: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: transparent var(--ck-color-panel-background) transparent transparent;\n\t\t\tmargin-left: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_n {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 50%;\n\t\t\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_nw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_ne {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_s {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 50%;\n\t\t\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_sw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_se {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_sme {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: 25%;\n\t\t\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_smw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 25%;\n\t\t\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_nme {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: 25%;\n\t\t\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_nmw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 25%;\n\t\t\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_e {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: 50%;\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_w {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: 50%;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},4650:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck .ck-balloon-rotator__navigation{align-items:center;display:flex;justify-content:center}.ck .ck-balloon-rotator__content .ck-toolbar{justify-content:center}.ck .ck-balloon-rotator__navigation{background:var(--ck-color-toolbar-background);border-bottom:1px solid var(--ck-color-toolbar-border);padding:0 var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation>*{margin-bottom:var(--ck-spacing-small);margin-right:var(--ck-spacing-small);margin-top:var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation .ck-balloon-rotator__counter{margin-left:var(--ck-spacing-small);margin-right:var(--ck-spacing-standard)}.ck .ck-balloon-rotator__content .ck.ck-annotation-wrapper{box-shadow:none}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/panel/balloonrotator.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/balloonrotator.css"],names:[],mappings:"AAKA,oCAEC,kBAAmB,CADnB,YAAa,CAEb,sBACD,CAKA,6CACC,sBACD,CCXA,oCACC,6CAA8C,CAC9C,sDAAuD,CACvD,iCAgBD,CAbC,sCAGC,qCAAsC,CAFtC,oCAAqC,CACrC,kCAED,CAGA,iEAIC,mCAAoC,CAHpC,uCAID,CAMA,2DACC,eACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-balloon-rotator__navigation {\n\tdisplay: flex;\n\talign-items: center;\n\tjustify-content: center;\n}\n\n/* Buttons inside a toolbar should be centered when rotator bar is wider.\n * See: https://github.com/ckeditor/ckeditor5-ui/issues/495\n */\n.ck .ck-balloon-rotator__content .ck-toolbar {\n\tjustify-content: center;\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-balloon-rotator__navigation {\n\tbackground: var(--ck-color-toolbar-background);\n\tborder-bottom: 1px solid var(--ck-color-toolbar-border);\n\tpadding: 0 var(--ck-spacing-small);\n\n\t/* Let's keep similar appearance to `ck-toolbar`. */\n\t& > * {\n\t\tmargin-right: var(--ck-spacing-small);\n\t\tmargin-top: var(--ck-spacing-small);\n\t\tmargin-bottom: var(--ck-spacing-small);\n\t}\n\n\t/* Gives counter more breath than buttons. */\n\t& .ck-balloon-rotator__counter {\n\t\tmargin-right: var(--ck-spacing-standard);\n\n\t\t/* We need to use smaller margin because of previous button's right margin. */\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n}\n\n.ck .ck-balloon-rotator__content {\n\n\t/* Disable default annotation shadow inside rotator with fake panels. */\n\t& .ck.ck-annotation-wrapper {\n\t\tbox-shadow: none;\n\t}\n}\n"],sourceRoot:""}]);const a=s},7676:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck .ck-fake-panel{position:absolute;z-index:calc(var(--ck-z-modal) - 1)}.ck .ck-fake-panel div{position:absolute}.ck .ck-fake-panel div:first-child{z-index:2}.ck .ck-fake-panel div:nth-child(2){z-index:1}:root{--ck-balloon-fake-panel-offset-horizontal:6px;--ck-balloon-fake-panel-offset-vertical:6px}.ck .ck-fake-panel div{background:var(--ck-color-panel-background);border:1px solid var(--ck-color-panel-border);border-radius:var(--ck-border-radius);box-shadow:var(--ck-drop-shadow),0 0;height:100%;min-height:15px;width:100%}.ck .ck-fake-panel div:first-child{margin-left:var(--ck-balloon-fake-panel-offset-horizontal);margin-top:var(--ck-balloon-fake-panel-offset-vertical)}.ck .ck-fake-panel div:nth-child(2){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*2);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*2)}.ck .ck-fake-panel div:nth-child(3){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*3);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*3)}.ck .ck-balloon-panel_arrow_s+.ck-fake-panel,.ck .ck-balloon-panel_arrow_se+.ck-fake-panel,.ck .ck-balloon-panel_arrow_sw+.ck-fake-panel{--ck-balloon-fake-panel-offset-vertical:-6px}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/panel/fakepanel.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/fakepanel.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css"],names:[],mappings:"AAKA,mBACC,iBAAkB,CAGlB,mCACD,CAEA,uBACC,iBACD,CAEA,mCACC,SACD,CAEA,oCACC,SACD,CCfA,MACC,6CAA8C,CAC9C,2CACD,CAGA,uBAKC,2CAA4C,CAC5C,6CAA8C,CAC9C,qCAAsC,CCXtC,oCAA8B,CDc9B,WAAY,CAPZ,eAAgB,CAMhB,UAED,CAEA,mCACC,0DAA2D,CAC3D,uDACD,CAEA,oCACC,kEAAqE,CACrE,+DACD,CACA,oCACC,kEAAqE,CACrE,+DACD,CAGA,yIAGC,4CACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-fake-panel {\n\tposition: absolute;\n\n\t/* Fake panels should be placed under main balloon content. */\n\tz-index: calc(var(--ck-z-modal) - 1);\n}\n\n.ck .ck-fake-panel div {\n\tposition: absolute;\n}\n\n.ck .ck-fake-panel div:nth-child( 1 ) {\n\tz-index: 2;\n}\n\n.ck .ck-fake-panel div:nth-child( 2 ) {\n\tz-index: 1;\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_shadow.css";\n\n:root {\n\t--ck-balloon-fake-panel-offset-horizontal: 6px;\n\t--ck-balloon-fake-panel-offset-vertical: 6px;\n}\n\n/* Let\'s use `.ck-balloon-panel` appearance. See: balloonpanel.css. */\n.ck .ck-fake-panel div {\n\t@mixin ck-drop-shadow;\n\n\tmin-height: 15px;\n\n\tbackground: var(--ck-color-panel-background);\n\tborder: 1px solid var(--ck-color-panel-border);\n\tborder-radius: var(--ck-border-radius);\n\n\twidth: 100%;\n\theight: 100%;\n}\n\n.ck .ck-fake-panel div:nth-child( 1 ) {\n\tmargin-left: var(--ck-balloon-fake-panel-offset-horizontal);\n\tmargin-top: var(--ck-balloon-fake-panel-offset-vertical);\n}\n\n.ck .ck-fake-panel div:nth-child( 2 ) {\n\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 2);\n\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 2);\n}\n.ck .ck-fake-panel div:nth-child( 3 ) {\n\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 3);\n\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 3);\n}\n\n/* If balloon is positioned above element, we need to move fake panel to the top. */\n.ck .ck-balloon-panel_arrow_s + .ck-fake-panel,\n.ck .ck-balloon-panel_arrow_se + .ck-fake-panel,\n.ck .ck-balloon-panel_arrow_sw + .ck-fake-panel {\n\t--ck-balloon-fake-panel-offset-vertical: -6px;\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},5868:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-sticky-panel .ck-sticky-panel__content_sticky{position:fixed;top:0;z-index:var(--ck-z-modal)}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky_bottom-limit{position:absolute;top:auto}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky{border-top-left-radius:0;border-top-right-radius:0;border-width:0 1px 1px;box-shadow:var(--ck-drop-shadow),0 0}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/panel/stickypanel.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/stickypanel.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css"],names:[],mappings:"AAMC,qDAEC,cAAe,CACf,KAAM,CAFN,yBAGD,CAEA,kEAEC,iBAAkB,CADlB,QAED,CCPA,qDAIC,wBAAyB,CACzB,yBAA0B,CAF1B,sBAAuB,CCFxB,oCDKA",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-sticky-panel {\n\t& .ck-sticky-panel__content_sticky {\n\t\tz-index: var(--ck-z-modal); /* #315 */\n\t\tposition: fixed;\n\t\ttop: 0;\n\t}\n\n\t& .ck-sticky-panel__content_sticky_bottom-limit {\n\t\ttop: auto;\n\t\tposition: absolute;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_shadow.css";\n\n.ck.ck-sticky-panel {\n\t& .ck-sticky-panel__content_sticky {\n\t\t@mixin ck-drop-shadow;\n\n\t\tborder-width: 0 1px 1px;\n\t\tborder-top-left-radius: 0;\n\t\tborder-top-right-radius: 0;\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck-vertical-form .ck-button {\n\t&::after {\n\t\tcontent: "";\n\t\twidth: 0;\n\t\tposition: absolute;\n\t\tright: -1px;\n\t\ttop: -1px;\n\t\tbottom: -1px;\n\t\tz-index: 1;\n\t}\n\n\t&:focus::after {\n\t\tdisplay: none;\n\t}\n}\n\n.ck.ck-responsive-form {\n\t@mixin ck-media-phone {\n\t\t& .ck-button {\n\t\t\t&::after {\n\t\t\t\tcontent: "";\n\t\t\t\twidth: 0;\n\t\t\t\tposition: absolute;\n\t\t\t\tright: -1px;\n\t\t\t\ttop: -1px;\n\t\t\t\tbottom: -1px;\n\t\t\t\tz-index: 1;\n\t\t\t}\n\n\t\t\t&:focus::after {\n\t\t\t\tdisplay: none;\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck-vertical-form > .ck-button:nth-last-child(2)::after {\n\tborder-right: 1px solid var(--ck-color-base-border);\n}\n\n.ck.ck-responsive-form {\n\tpadding: var(--ck-spacing-large);\n\n\t&:focus {\n\t\t/* See: https://github.com/ckeditor/ckeditor5/issues/4773 */\n\t\toutline: none;\n\t}\n\n\t@mixin ck-dir ltr {\n\t\t& > :not(:first-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-dir rtl {\n\t\t& > :not(:last-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-media-phone {\n\t\tpadding: 0;\n\t\twidth: calc(.8 * var(--ck-input-width));\n\n\t\t& .ck-labeled-field-view {\n\t\t\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) 0;\n\n\t\t\t& .ck-input-text {\n\t\t\t\tmin-width: 0;\n\t\t\t\twidth: 100%;\n\t\t\t}\n\n\t\t\t/* Let the long error messages wrap in the narrow form. */\n\t\t\t& .ck-labeled-field-view__error {\n\t\t\t\twhite-space: normal;\n\t\t\t}\n\t\t}\n\n\t\t/* Styles for two last buttons in the form (save&cancel, edit&unlink, etc.). */\n\t\t& > .ck-button:nth-last-child(2) {\n\t\t\t&::after {\n\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t}\n\t\t}\n\n\t\t& > .ck-button:nth-last-child(1),\n\t\t& > .ck-button:nth-last-child(2) {\n\t\t\tpadding: var(--ck-spacing-standard);\n\t\t\tmargin-top: var(--ck-spacing-large);\n\t\t\tborder-radius: 0;\n\n\t\t\t&:not(:focus) {\n\t\t\t\tborder-top: 1px solid var(--ck-color-base-border);\n\t\t\t}\n\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-left: 0;\n\n\t\t\t\t&:last-of-type {\n\t\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},9695:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-block-toolbar-button{position:absolute;z-index:var(--ck-z-default)}:root{--ck-color-block-toolbar-button:var(--ck-color-text);--ck-block-toolbar-button-size:var(--ck-font-size-normal)}.ck.ck-block-toolbar-button{color:var(--ck-color-block-toolbar-button);font-size:var(--ck-block-toolbar-size)}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/toolbar/blocktoolbar.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/toolbar/blocktoolbar.css"],names:[],mappings:"AAKA,4BACC,iBAAkB,CAClB,2BACD,CCHA,MACC,oDAAqD,CACrD,yDACD,CAEA,4BACC,0CAA2C,CAC3C,sCACD",sourcesContent:["/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-block-toolbar-button {\n\tposition: absolute;\n\tz-index: var(--ck-z-default);\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-color-block-toolbar-button: var(--ck-color-text);\n\t--ck-block-toolbar-button-size: var(--ck-font-size-normal);\n}\n\n.ck.ck-block-toolbar-button {\n\tcolor: var(--ck-color-block-toolbar-button);\n\tfont-size: var(--ck-block-toolbar-size);\n}\n"],sourceRoot:""}]);const a=s},5542:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-toolbar{align-items:center;display:flex;flex-flow:row nowrap;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-toolbar>.ck-toolbar__items{align-items:center;display:flex;flex-flow:row wrap;flex-grow:1}.ck.ck-toolbar .ck.ck-toolbar__separator{display:inline-block}.ck.ck-toolbar .ck.ck-toolbar__separator:first-child,.ck.ck-toolbar .ck.ck-toolbar__separator:last-child{display:none}.ck.ck-toolbar 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* Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../mixins/_unselectable.css";\n\n.ck.ck-toolbar {\n\t@mixin ck-unselectable;\n\n\tdisplay: flex;\n\tflex-flow: row nowrap;\n\talign-items: center;\n\n\t& > .ck-toolbar__items {\n\t\tdisplay: flex;\n\t\tflex-flow: row wrap;\n\t\talign-items: center;\n\t\tflex-grow: 1;\n\n\t}\n\n\t& .ck.ck-toolbar__separator {\n\t\tdisplay: inline-block;\n\n\t\t/*\n\t\t * A leading or trailing separator makes no sense (separates from nothing on one side).\n\t\t * For instance, it can happen when toolbar items (also separators) are getting grouped one by one and\n\t\t * moved to another toolbar in the dropdown.\n\t\t */\n\t\t&:first-child,\n\t\t&:last-child {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n\n\t& .ck-toolbar__line-break {\n\t\tflex-basis: 100%;\n\t}\n\n\t&.ck-toolbar_grouping > .ck-toolbar__items {\n\t\tflex-wrap: nowrap;\n\t}\n\n\t&.ck-toolbar_vertical > .ck-toolbar__items {\n\t\tflex-direction: column;\n\t}\n\n\t&.ck-toolbar_floating > .ck-toolbar__items {\n\t\tflex-wrap: nowrap;\n\t}\n\n\t& > .ck.ck-toolbar__grouped-dropdown {\n\t\t& > .ck-dropdown__button .ck-dropdown__arrow {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Makes element unselectable.\n */\n@define-mixin ck-unselectable {\n\t-moz-user-select: none;\n\t-webkit-user-select: none;\n\t-ms-user-select: none;\n\tuser-select: none\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck.ck-toolbar {\n\t@mixin ck-rounded-corners;\n\n\tbackground: var(--ck-color-toolbar-background);\n\tpadding: 0 var(--ck-spacing-small);\n\tborder: 1px solid var(--ck-color-toolbar-border);\n\n\t& .ck.ck-toolbar__separator {\n\t\talign-self: stretch;\n\t\twidth: 1px;\n\t\tmin-width: 1px;\n\t\tbackground: var(--ck-color-toolbar-border);\n\n\t\t/*\n\t\t * These margins make the separators look better in balloon toolbars (when aligned with the "tip").\n\t\t * See https://github.com/ckeditor/ckeditor5/issues/7493.\n\t\t */\n\t\tmargin-top: var(--ck-spacing-small);\n\t\tmargin-bottom: var(--ck-spacing-small);\n\t}\n\n\t& .ck-toolbar__line-break {\n\t\theight: 0;\n\t}\n\n\t& > .ck-toolbar__items {\n\t\t& > *:not(.ck-toolbar__line-break) {\n\t\t\t/* (#11) Separate toolbar items. */\n\t\t\tmargin-right: var(--ck-spacing-small);\n\t\t}\n\n\t\t/* Don\'t display a separator after an empty items container, for instance,\n\t\twhen all items were grouped */\n\t\t&:empty + .ck.ck-toolbar__separator {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n\n\t& > .ck-toolbar__items > *:not(.ck-toolbar__line-break),\n\t& > .ck.ck-toolbar__grouped-dropdown {\n\t\t/* Make sure items wrapped to the next line have v-spacing */\n\t\tmargin-top: var(--ck-spacing-small);\n\t\tmargin-bottom: var(--ck-spacing-small);\n\t}\n\n\t&.ck-toolbar_vertical {\n\t\t/* Items in a vertical toolbar span the entire width. */\n\t\tpadding: 0;\n\n\t\t/* Specificity matters here. See https://github.com/ckeditor/ckeditor5-theme-lark/issues/168. */\n\t\t& > .ck-toolbar__items > .ck {\n\t\t\t/* Items in a vertical toolbar should span the horizontal space. */\n\t\t\twidth: 100%;\n\n\t\t\t/* Items in a vertical toolbar should have no margin. */\n\t\t\tmargin: 0;\n\n\t\t\t/* Items in a vertical toolbar span the entire width so rounded corners are pointless. */\n\t\t\tborder-radius: 0;\n\t\t}\n\t}\n\n\t&.ck-toolbar_compact {\n\t\t/* No spacing around items. */\n\t\tpadding: 0;\n\n\t\t& > .ck-toolbar__items > * {\n\t\t\t/* Compact toolbar items have no spacing between them. */\n\t\t\tmargin: 0;\n\n\t\t\t/* "Middle" children should have no rounded corners. */\n\t\t\t&:not(:first-child):not(:last-child) {\n\t\t\t\tborder-radius: 0;\n\t\t\t}\n\t\t}\n\t}\n\n\t& > .ck.ck-toolbar__grouped-dropdown {\n\t\t/*\n\t\t * Dropdown button has asymmetric padding to fit the arrow.\n\t\t * This button has no arrow so let\'s revert that padding back to normal.\n\t\t */\n\t\t& > .ck.ck-button.ck-dropdown__button {\n\t\t\tpadding-left: var(--ck-spacing-tiny);\n\t\t}\n\t}\n\n\t/* A drop-down containing the nested toolbar with configured items. */\n\t& .ck-toolbar__nested-toolbar-dropdown {\n\t\t/* Prevent empty space in the panel when the dropdown label is visible and long but the toolbar has few items. */\n\t\t& > .ck-dropdown__panel {\n\t\t\tmin-width: auto;\n\t\t}\n\n\t\t& > .ck-button > .ck-button__label {\n\t\t\tmax-width: 7em;\n\t\t\twidth: auto;\n\t\t}\n\t}\n\n\t@nest .ck-toolbar-container & {\n\t\tborder: 0;\n\t}\n}\n\n/* stylelint-disable */\n\n/*\n * Styles for RTL toolbars.\n *\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own "dir"\n * because its parent is not controlled by the editor framework.\n */\n[dir="rtl"] .ck.ck-toolbar,\n.ck.ck-toolbar[dir="rtl"] {\n\t& > .ck-toolbar__items > .ck {\n\t\tmargin-right: 0;\n\t}\n\n\t&:not(.ck-toolbar_compact) > .ck-toolbar__items > .ck {\n\t\t/* (#11) Separate toolbar items. */\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n\n\t& > .ck-toolbar__items > .ck:last-child {\n\t\tmargin-left: 0;\n\t}\n\n\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\n\t\t/* No rounded corners on the right side of the first child. */\n\t\t&:first-child {\n\t\t\tborder-top-left-radius: 0;\n\t\t\tborder-bottom-left-radius: 0;\n\t\t}\n\n\t\t/* No rounded corners on the left side of the last child. */\n\t\t&:last-child {\n\t\t\tborder-top-right-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\t}\n\n\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\n\t& > .ck.ck-toolbar__separator {\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n\n\t/* Some spacing between the items and the separator before the grouped items dropdown. */\n\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n}\n\n/*\n * Styles for LTR toolbars.\n *\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own "dir"\n * because its parent is not controlled by the editor framework.\n */\n[dir="ltr"] .ck.ck-toolbar,\n.ck.ck-toolbar[dir="ltr"] {\n\t& > .ck-toolbar__items > .ck:last-child {\n\t\tmargin-right: 0;\n\t}\n\n\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\n\t\t/* No rounded corners on the right side of the first child. */\n\t\t&:first-child {\n\t\t\tborder-top-right-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\n\t\t/* No rounded corners on the left side of the last child. */\n\t\t&:last-child {\n\t\t\tborder-top-left-radius: 0;\n\t\t\tborder-bottom-left-radius: 0;\n\t\t}\n\t}\n\n\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\n\t& > .ck.ck-toolbar__separator {\n\t\tmargin-right: var(--ck-spacing-small);\n\t}\n\n\t/* Some spacing between the items and the separator before the grouped items dropdown. */\n\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\n\t\tmargin-right: var(--ck-spacing-small);\n\t}\n}\n\n/* stylelint-enable */\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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\t\t\t\t\t\t\t\t\thsl(var(--ck-color-focus-border-coordinates));\n\t--ck-color-focus-outer-shadow:\t\t\t\t\t\t\t\thsl(212.4, 89.3%, 89%);\n\t--ck-color-focus-disabled-shadow:\t\t\t\t\t\t\thsla(209, 90%, 72%,.3);\n\t--ck-color-focus-error-shadow:\t\t\t\t\t\t\t\thsla(9,100%,56%,.3);\n\t--ck-color-text: \t\t\t\t\t\t\t\t\t\t\tvar(--ck-color-base-text);\n\t--ck-color-shadow-drop: \t\t\t\t\t\t\t\t\thsla(0, 0%, 0%, 0.15);\n\t--ck-color-shadow-drop-active:\t\t\t\t\t\t\t\thsla(0, 0%, 0%, 0.2);\n\t--ck-color-shadow-inner: \t\t\t\t\t\t\t\t\thsla(0, 0%, 0%, 0.1);\n\n\t/* -- Buttons ------------------------------------------------------------------------------- */\n\n\t--ck-color-button-default-background: \t\t\t\t\t\ttransparent;\n\t--ck-color-button-default-hover-background: \t\t\t\thsl(0, 0%, 94.1%);\n\t--ck-color-button-default-active-background: \t\t\t\thsl(0, 0%, 94.1%);\n\t--ck-color-button-default-disabled-background: \t\t\t\ttransparent;\n\n\t--ck-color-button-on-background: \t\t\t\t\t\t\thsl(212, 100%, 97.1%);\n\t--ck-color-button-on-hover-background: \t\t\t\t\t\thsl(211.7, 100%, 92.9%);\n\t--ck-color-button-on-active-background: \t\t\t\t\thsl(211.7, 100%, 92.9%);\n\t--ck-color-button-on-disabled-background: \t\t\t\t\thsl(211, 15%, 95%);\n\t--ck-color-button-on-color:\t\t\t\t\t\t\t\t\thsl(218.1, 100%, 58%);\n\n\n\t--ck-color-button-action-background: \t\t\t\t\t\tvar(--ck-color-base-action);\n\t--ck-color-button-action-hover-background: \t\t\t\t\thsl(104, 53.2%, 40.2%);\n\t--ck-color-button-action-active-background: \t\t\t\thsl(104, 53.2%, 40.2%);\n\t--ck-color-button-action-disabled-background: \t\t\t\thsl(104, 44%, 58%);\n\t--ck-color-button-action-text: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\n\t--ck-color-button-save: \t\t\t\t\t\t\t\t\thsl(120, 100%, 27%);\n\t--ck-color-button-cancel: \t\t\t\t\t\t\t\t\thsl(15, 100%, 43%);\n\n\t--ck-color-switch-button-off-background:\t\t\t\t\thsl(0, 0%, 57.6%);\n\t--ck-color-switch-button-off-hover-background:\t\t\t\thsl(0, 0%, 49%);\n\t--ck-color-switch-button-on-background:\t\t\t\t\t\tvar(--ck-color-button-action-background);\n\t--ck-color-switch-button-on-hover-background:\t\t\t\thsl(104, 53.2%, 40.2%);\n\t--ck-color-switch-button-inner-background:\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-switch-button-inner-shadow:\t\t\t\t\t\thsla(0, 0%, 0%, 0.1);\n\n\t/* -- Dropdown ------------------------------------------------------------------------------ */\n\n\t--ck-color-dropdown-panel-background: \t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-dropdown-panel-border: \t\t\t\t\t\t\tvar(--ck-color-base-border);\n\n\t/* -- Input --------------------------------------------------------------------------------- */\n\n\t--ck-color-input-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-input-border: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-border);\n\t--ck-color-input-error-border:\t\t\t\t\t\t\t\tvar(--ck-color-base-error);\n\t--ck-color-input-text: \t\t\t\t\t\t\t\t\t\tvar(--ck-color-base-text);\n\t--ck-color-input-disabled-background: \t\t\t\t\t\thsl(0, 0%, 95%);\n\t--ck-color-input-disabled-border: \t\t\t\t\t\t\tvar(--ck-color-base-border);\n\t--ck-color-input-disabled-text: \t\t\t\t\t\t\thsl(0, 0%, 46%);\n\n\t/* -- List ---------------------------------------------------------------------------------- */\n\n\t--ck-color-list-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-list-button-hover-background: \t\t\t\t\tvar(--ck-color-button-default-hover-background);\n\t--ck-color-list-button-on-background: \t\t\t\t\t\tvar(--ck-color-button-on-color);\n\t--ck-color-list-button-on-background-focus: \t\t\t\tvar(--ck-color-button-on-color);\n\t--ck-color-list-button-on-text:\t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\n\t/* -- Panel --------------------------------------------------------------------------------- */\n\n\t--ck-color-panel-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-panel-border: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-border);\n\n\t/* -- Toolbar ------------------------------------------------------------------------------- */\n\n\t--ck-color-toolbar-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-toolbar-border: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-border);\n\n\t/* -- Tooltip ------------------------------------------------------------------------------- */\n\n\t--ck-color-tooltip-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-text);\n\t--ck-color-tooltip-text: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\n\t/* -- Engine -------------------------------------------------------------------------------- */\n\n\t--ck-color-engine-placeholder-text: \t\t\t\t\t\thsl(0, 0%, 44%);\n\n\t/* -- Upload -------------------------------------------------------------------------------- */\n\n\t--ck-color-upload-bar-background:\t\t \t\t\t\t\thsl(209, 92%, 70%);\n\n\t/* -- Link -------------------------------------------------------------------------------- */\n\n\t--ck-color-link-default:\t\t\t\t\t\t\t\t\thsl(240, 100%, 47%);\n\t--ck-color-link-selected-background:\t\t\t\t\t\thsla(201, 100%, 56%, 0.1);\n\t--ck-color-link-fake-selection:\t\t\t\t\t\t\t\thsla(201, 100%, 56%, 0.3);\n\n\t/* -- Search result highlight ---------------------------------------------------------------- */\n\n\t--ck-color-highlight-background:\t\t\t\t\t\t\thsl(60, 100%, 50%)\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t/**\n\t * An opacity value of disabled UI item.\n\t */\n\t--ck-disabled-opacity: .5;\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t/**\n\t * The geometry of the of focused element's outer shadow.\n\t */\n\t--ck-focus-outer-shadow-geometry: 0 0 0 3px;\n\n\t/**\n\t * A visual style of focused element's outer shadow.\n\t */\n\t--ck-focus-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-outer-shadow);\n\n\t/**\n\t * A visual style of focused element's outer shadow (when disabled).\n\t */\n\t--ck-focus-disabled-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-disabled-shadow);\n\n\t/**\n\t * A visual style of focused element's outer shadow (when has errors).\n\t */\n\t--ck-focus-error-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-error-shadow);\n\n\t/**\n\t * A visual style of focused element's border or outline.\n\t */\n\t--ck-focus-ring: 1px solid var(--ck-color-focus-border);\n}\n","/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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The value is also shared by other components which should stay "in-line"\n\twith buttons. */\n\t--ck-ui-component-min-height: 2.3em;\n}\n\n/**\n * Resets an element, ignoring its children.\n */\n.ck.ck-reset,\n.ck.ck-reset_all,\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\n\t/* Do not include inheritable rules here. */\n\tmargin: 0;\n\tpadding: 0;\n\tborder: 0;\n\tbackground: transparent;\n\ttext-decoration: none;\n\tvertical-align: middle;\n\ttransition: none;\n\n\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/105 */\n\tword-wrap: break-word;\n}\n\n/**\n * Resets an element AND its children.\n */\n.ck.ck-reset_all,\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\n\t/* These are rule inherited by all children elements. */\n\tborder-collapse: collapse;\n\tfont: normal normal normal var(--ck-font-size-base)/var(--ck-line-height-base) var(--ck-font-face);\n\tcolor: var(--ck-color-text);\n\ttext-align: left;\n\twhite-space: nowrap;\n\tcursor: auto;\n\tfloat: none;\n}\n\n.ck-reset_all {\n\t& .ck-rtl *:not(.ck-reset_all-excluded *) {\n\t\ttext-align: right;\n\t}\n\n\t& iframe:not(.ck-reset_all-excluded *) {\n\t\t/* For IE */\n\t\tvertical-align: inherit;\n\t}\n\n\t& textarea:not(.ck-reset_all-excluded *) {\n\t\twhite-space: pre-wrap;\n\t}\n\n\t& textarea:not(.ck-reset_all-excluded *),\n\t& input[type="text"]:not(.ck-reset_all-excluded *),\n\t& input[type="password"]:not(.ck-reset_all-excluded *) {\n\t\tcursor: text;\n\t}\n\n\t& textarea[disabled]:not(.ck-reset_all-excluded *),\n\t& input[type="text"][disabled]:not(.ck-reset_all-excluded *),\n\t& input[type="password"][disabled]:not(.ck-reset_all-excluded *) {\n\t\tcursor: default;\n\t}\n\n\t& fieldset:not(.ck-reset_all-excluded *) {\n\t\tpadding: 10px;\n\t\tborder: 2px groove hsl(255, 7%, 88%);\n\t}\n\n\t& button:not(.ck-reset_all-excluded *)::-moz-focus-inner {\n\t\t/* See http://stackoverflow.com/questions/5517744/remove-extra-button-spacing-padding-in-firefox */\n\t\tpadding: 0;\n\t\tborder: 0\n\t}\n}\n\n/**\n * Default UI rules for RTL languages.\n */\n.ck[dir="rtl"],\n.ck[dir="rtl"] .ck {\n\ttext-align: right;\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-spacing-unit: \t\t\t\t\t\t0.6em;\n\t--ck-spacing-large: \t\t\t\t\tcalc(var(--ck-spacing-unit) * 1.5);\n\t--ck-spacing-standard: \t\t\t\t\tvar(--ck-spacing-unit);\n\t--ck-spacing-medium: \t\t\t\t\tcalc(var(--ck-spacing-unit) * 0.8);\n\t--ck-spacing-small: \t\t\t\t\tcalc(var(--ck-spacing-unit) * 0.5);\n\t--ck-spacing-tiny: \t\t\t\t\t\tcalc(var(--ck-spacing-unit) * 0.3);\n\t--ck-spacing-extra-tiny: \t\t\t\tcalc(var(--ck-spacing-unit) * 0.16);\n}\n"],sourceRoot:""}]);const a=s},3488:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-color-resizer:var(--ck-color-focus-border);--ck-color-resizer-tooltip-background:#262626;--ck-color-resizer-tooltip-text:#f2f2f2;--ck-resizer-border-radius:var(--ck-border-radius);--ck-resizer-tooltip-offset:10px;--ck-resizer-tooltip-height:calc(var(--ck-spacing-small)*2 + 10px)}.ck .ck-widget,.ck .ck-widget.ck-widget_with-selection-handle{position:relative}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{position:absolute}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon{display:block}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle,.ck .ck-widget.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle{visibility:visible}.ck .ck-size-view{background:var(--ck-color-resizer-tooltip-background);border:1px solid var(--ck-color-resizer-tooltip-text);border-radius:var(--ck-resizer-border-radius);color:var(--ck-color-resizer-tooltip-text);display:block;font-size:var(--ck-font-size-tiny);height:var(--ck-resizer-tooltip-height);line-height:var(--ck-resizer-tooltip-height);padding:0 var(--ck-spacing-small)}.ck .ck-size-view.ck-orientation-above-center,.ck .ck-size-view.ck-orientation-bottom-left,.ck .ck-size-view.ck-orientation-bottom-right,.ck .ck-size-view.ck-orientation-top-left,.ck .ck-size-view.ck-orientation-top-right{position:absolute}.ck .ck-size-view.ck-orientation-top-left{left:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-top-right{right:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-right{bottom:var(--ck-resizer-tooltip-offset);right:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-left{bottom:var(--ck-resizer-tooltip-offset);left:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-above-center{left:50%;top:calc(var(--ck-resizer-tooltip-height)*-1);transform:translate(-50%)}:root{--ck-widget-outline-thickness:3px;--ck-widget-handler-icon-size:16px;--ck-widget-handler-animation-duration:200ms;--ck-widget-handler-animation-curve:ease;--ck-color-widget-blurred-border:#dedede;--ck-color-widget-hover-border:#ffc83d;--ck-color-widget-editable-focus-background:var(--ck-color-base-background);--ck-color-widget-drag-handler-icon-color:var(--ck-color-base-background)}.ck .ck-widget{outline-color:transparent;outline-style:solid;outline-width:var(--ck-widget-outline-thickness);transition:outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_selected,.ck .ck-widget.ck-widget_selected:hover{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border)}.ck .ck-widget:hover{outline-color:var(--ck-color-widget-hover-border)}.ck .ck-editor__nested-editable{border:1px solid transparent}.ck .ck-editor__nested-editable.ck-editor__nested-editable_focused,.ck .ck-editor__nested-editable:focus{background-color:var(--ck-color-widget-editable-focus-background);border:var(--ck-focus-ring);box-shadow:var(--ck-inner-shadow),0 0;outline:none}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{background-color:transparent;border-radius:var(--ck-border-radius) var(--ck-border-radius) 0 0;box-sizing:border-box;left:calc(0px - 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-color-resizer: var(--ck-color-focus-border);\n\t--ck-color-resizer-tooltip-background: hsl(0, 0%, 15%);\n\t--ck-color-resizer-tooltip-text: hsl(0, 0%, 95%);\n\n\t--ck-resizer-border-radius: var(--ck-border-radius);\n\t--ck-resizer-tooltip-offset: 10px;\n\t--ck-resizer-tooltip-height: calc(var(--ck-spacing-small) * 2 + 10px);\n}\n\n.ck .ck-widget {\n\t/* This is neccessary for type around UI to be positioned properly. */\n\tposition: relative;\n}\n\n.ck .ck-widget.ck-widget_with-selection-handle {\n\t/* Make the widget wrapper a relative positioning container for the drag handle. */\n\tposition: relative;\n\n\t& .ck-widget__selection-handle {\n\t\tposition: absolute;\n\n\t\t& .ck-icon {\n\t\t\t/* Make sure the icon in not a subject to font-size or line-height to avoid\n\t\t\tunnecessary spacing around it. */\n\t\t\tdisplay: block;\n\t\t}\n\t}\n\n\t/* Show the selection handle on mouse hover over the widget, but not for nested widgets. */\n\t&:hover > .ck-widget__selection-handle {\n\t\tvisibility: visible;\n\t}\n\n\t/* Show the selection handle when the widget is selected, but not for nested widgets. */\n\t&.ck-widget_selected > .ck-widget__selection-handle {\n\t\tvisibility: visible;\n\t}\n}\n\n.ck .ck-size-view {\n\tbackground: var(--ck-color-resizer-tooltip-background);\n\tcolor: var(--ck-color-resizer-tooltip-text);\n\tborder: 1px solid var(--ck-color-resizer-tooltip-text);\n\tborder-radius: var(--ck-resizer-border-radius);\n\tfont-size: var(--ck-font-size-tiny);\n\tdisplay: block;\n\tpadding: 0 var(--ck-spacing-small);\n\theight: var(--ck-resizer-tooltip-height);\n\tline-height: var(--ck-resizer-tooltip-height);\n\n\t&.ck-orientation-top-left,\n\t&.ck-orientation-top-right,\n\t&.ck-orientation-bottom-right,\n\t&.ck-orientation-bottom-left,\n\t&.ck-orientation-above-center {\n\t\tposition: absolute;\n\t}\n\n\t&.ck-orientation-top-left {\n\t\ttop: var(--ck-resizer-tooltip-offset);\n\t\tleft: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t&.ck-orientation-top-right {\n\t\ttop: var(--ck-resizer-tooltip-offset);\n\t\tright: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t&.ck-orientation-bottom-right {\n\t\tbottom: var(--ck-resizer-tooltip-offset);\n\t\tright: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t&.ck-orientation-bottom-left {\n\t\tbottom: var(--ck-resizer-tooltip-offset);\n\t\tleft: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t/* Class applied if the widget is too small to contain the size label */\n\t&.ck-orientation-above-center {\n\t\ttop: calc(var(--ck-resizer-tooltip-height) * -1);\n\t\tleft: 50%;\n\t\ttransform: translate(-50%);\n\t}\n}\n",'/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../mixins/_focus.css";\n@import "../mixins/_shadow.css";\n\n:root {\n\t--ck-widget-outline-thickness: 3px;\n\t--ck-widget-handler-icon-size: 16px;\n\t--ck-widget-handler-animation-duration: 200ms;\n\t--ck-widget-handler-animation-curve: ease;\n\n\t--ck-color-widget-blurred-border: hsl(0, 0%, 87%);\n\t--ck-color-widget-hover-border: hsl(43, 100%, 62%);\n\t--ck-color-widget-editable-focus-background: var(--ck-color-base-background);\n\t--ck-color-widget-drag-handler-icon-color: var(--ck-color-base-background);\n}\n\n.ck .ck-widget {\n\toutline-width: var(--ck-widget-outline-thickness);\n\toutline-style: solid;\n\toutline-color: transparent;\n\ttransition: outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\n\n\t&.ck-widget_selected,\n\t&.ck-widget_selected:hover {\n\t\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border);\n\t}\n\n\t&:hover {\n\t\toutline-color: var(--ck-color-widget-hover-border);\n\t}\n}\n\n.ck .ck-editor__nested-editable {\n\tborder: 1px solid transparent;\n\n\t/* The :focus style is applied before .ck-editor__nested-editable_focused class is rendered in the view.\n\tThese styles show a different border for a blink of an eye, so `:focus` need to have same styles applied. */\n\t&.ck-editor__nested-editable_focused,\n\t&:focus {\n\t\t@mixin ck-focus-ring;\n\t\t@mixin ck-box-shadow var(--ck-inner-shadow);\n\n\t\tbackground-color: var(--ck-color-widget-editable-focus-background);\n\t}\n}\n\n.ck .ck-widget.ck-widget_with-selection-handle {\n\t& .ck-widget__selection-handle {\n\t\tpadding: 4px;\n\t\tbox-sizing: border-box;\n\n\t\t/* Background and opacity will be animated as the handler shows up or the widget gets selected. */\n\t\tbackground-color: transparent;\n\t\topacity: 0;\n\n\t\t/* Transition:\n\t\t   * background-color for the .ck-widget_selected state change,\n\t\t   * visibility for hiding the handler,\n\t\t   * opacity for the proper look of the icon when the handler disappears. */\n\t\ttransition:\n\t\t\tbackground-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\n\t\t\tvisibility var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\n\t\t\topacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\n\n\t\t/* Make only top corners round. */\n\t\tborder-radius: var(--ck-border-radius) var(--ck-border-radius) 0 0;\n\n\t\t/* Place the drag handler outside the widget wrapper. */\n\t\ttransform: translateY(-100%);\n\t\tleft: calc(0px - var(--ck-widget-outline-thickness));\n\t\ttop: 0;\n\n\t\t& .ck-icon {\n\t\t\t/* Make sure the dimensions of the icon are independent of the fon-size of the content. */\n\t\t\twidth: var(--ck-widget-handler-icon-size);\n\t\t\theight: var(--ck-widget-handler-icon-size);\n\t\t\tcolor: var(--ck-color-widget-drag-handler-icon-color);\n\n\t\t\t/* The "selected" part of the icon is invisible by default */\n\t\t\t& .ck-icon__selected-indicator {\n\t\t\t\topacity: 0;\n\n\t\t\t\t/* Note: The animation is longer on purpose. Simply feels better. */\n\t\t\t\ttransition: opacity 300ms var(--ck-widget-handler-animation-curve);\n\t\t\t}\n\t\t}\n\n\t\t/* Advertise using the look of the icon that once clicked the handler, the widget will be selected. */\n\t\t&:hover .ck-icon .ck-icon__selected-indicator {\n\t\t\topacity: 1;\n\t\t}\n\t}\n\n\t/* Show the selection handler on mouse hover over the widget, but not for nested widgets. */\n\t&:hover > .ck-widget__selection-handle {\n\t\topacity: 1;\n\t\tbackground-color: var(--ck-color-widget-hover-border);\n\t}\n\n\t/* Show the selection handler when the widget is selected, but not for nested widgets. */\n\t&.ck-widget_selected,\n\t&.ck-widget_selected:hover {\n\t\t& > .ck-widget__selection-handle {\n\t\t\topacity: 1;\n\t\t\tbackground-color: var(--ck-color-focus-border);\n\n\t\t\t/* When the widget is selected, notify the user using the proper look of the icon. */\n\t\t\t& .ck-icon .ck-icon__selected-indicator {\n\t\t\t\topacity: 1;\n\t\t\t}\n\t\t}\n\t}\n}\n\n/* In a RTL environment, align the selection handler to the right side of the widget */\n/* stylelint-disable-next-line no-descending-specificity */\n.ck[dir="rtl"] .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle {\n\tleft: auto;\n\tright: calc(0px - var(--ck-widget-outline-thickness));\n}\n\n/* https://github.com/ckeditor/ckeditor5/issues/6415 */\n.ck.ck-editor__editable.ck-read-only .ck-widget {\n\t/* Prevent the :hover outline from showing up because of the used outline-color transition. */\n\ttransition: none;\n\n\t&:not(.ck-widget_selected) {\n\t\t/* Disable visual effects of hover/active widget when CKEditor is in readOnly mode.\n\t\t * See: https://github.com/ckeditor/ckeditor5/issues/1261\n\t\t *\n\t\t * Leave the unit because this custom property is used in calc() by other features.\n\t\t * See: https://github.com/ckeditor/ckeditor5/issues/6775\n\t\t */\n\t\t--ck-widget-outline-thickness: 0px;\n\t}\n\n\t&.ck-widget_with-selection-handle {\n\t\t& .ck-widget__selection-handle,\n\t\t& .ck-widget__selection-handle:hover {\n\t\t\tbackground: var(--ck-color-widget-blurred-border);\n\t\t}\n\t}\n}\n\n/* Style the widget when it\'s selected but the editable it belongs to lost focus. */\n/* stylelint-disable-next-line no-descending-specificity */\n.ck.ck-editor__editable.ck-blurred .ck-widget {\n\t&.ck-widget_selected,\n\t&.ck-widget_selected:hover {\n\t\toutline-color: var(--ck-color-widget-blurred-border);\n\n\t\t&.ck-widget_with-selection-handle {\n\t\t\t& > .ck-widget__selection-handle,\n\t\t\t& > .ck-widget__selection-handle:hover {\n\t\t\t\tbackground: var(--ck-color-widget-blurred-border);\n\t\t\t}\n\t\t}\n\t}\n}\n\n.ck.ck-editor__editable > .ck-widget.ck-widget_with-selection-handle:first-child,\n.ck.ck-editor__editable blockquote > .ck-widget.ck-widget_with-selection-handle:first-child {\n\t/* Do not crop selection handler if a widget is a first-child in the blockquote or in the root editable.\n\tIn fact, anything with overflow: hidden.\n\thttps://github.com/ckeditor/ckeditor5-block-quote/issues/28\n\thttps://github.com/ckeditor/ckeditor5-widget/issues/44\n\thttps://github.com/ckeditor/ckeditor5-widget/issues/66 */\n\tmargin-top: calc(1em + var(--ck-widget-handler-icon-size));\n}\n',"/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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* Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-widget {\n\t/*\n\t * Styles of the type around buttons\n\t */\n\t& .ck-widget__type-around__button {\n\t\tdisplay: block;\n\t\tposition: absolute;\n\t\toverflow: hidden;\n\t\tz-index: var(--ck-z-default);\n\n\t\t& svg {\n\t\t\tposition: absolute;\n\t\t\ttop: 50%;\n\t\t\tleft: 50%;\n\t\t\tz-index: calc(var(--ck-z-default) + 2);\n\t\t}\n\n\t\t&.ck-widget__type-around__button_before {\n\t\t\t/* Place it in the middle of the outline */\n\t\t\ttop: calc(-0.5 * var(--ck-widget-outline-thickness));\n\t\t\tleft: min(10%, 30px);\n\n\t\t\ttransform: translateY(-50%);\n\t\t}\n\n\t\t&.ck-widget__type-around__button_after {\n\t\t\t/* Place it in the middle of the outline */\n\t\t\tbottom: calc(-0.5 * var(--ck-widget-outline-thickness));\n\t\t\tright: min(10%, 30px);\n\n\t\t\ttransform: translateY(50%);\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the buttons when:\n\t * - the widget is selected,\n\t * - or the button is being hovered (regardless of the widget state).\n\t */\n\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\n\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\n\t\t&::after {\n\t\t\tcontent: "";\n\t\t\tdisplay: block;\n\t\t\tposition: absolute;\n\t\t\ttop: 1px;\n\t\t\tleft: 1px;\n\t\t\tz-index: calc(var(--ck-z-default) + 1);\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" which is displayed when the user navigates using the keyboard.\n\t */\n\t& > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\tdisplay: none;\n\t\tposition: absolute;\n\t\tleft: 0;\n\t\tright: 0;\n\t}\n\n\t/*\n\t * When the widget is hovered the "fake caret" would normally be narrower than the\n\t * extra outline displayed around the widget. Let\'s extend the "fake caret" to match\n\t * the full width of the widget.\n\t */\n\t&:hover > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\tleft: calc( -1 * var(--ck-widget-outline-thickness) );\n\t\tright: calc( -1 * var(--ck-widget-outline-thickness) );\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" when it should be displayed before the widget (backward keyboard navigation).\n\t */\n\t&.ck-widget_type-around_show-fake-caret_before > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\ttop: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\n\t\tdisplay: block;\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" when it should be displayed after the widget (forward keyboard navigation).\n\t */\n\t&.ck-widget_type-around_show-fake-caret_after > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\tbottom: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\n\t\tdisplay: block;\n\t}\n}\n\n/*\n * Integration with the read-only mode of the editor.\n */\n.ck.ck-editor__editable.ck-read-only .ck-widget__type-around {\n\tdisplay: none;\n}\n\n/*\n * Integration with the restricted editing mode (feature) of the editor.\n */\n.ck.ck-editor__editable.ck-restricted-editing_mode_restricted .ck-widget__type-around {\n\tdisplay: none;\n}\n\n/*\n * Integration with the #isEnabled property of the WidgetTypeAround plugin.\n */\n.ck.ck-editor__editable.ck-widget__type-around_disabled .ck-widget__type-around {\n\tdisplay: none;\n}\n','/*\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-widget-type-around-button-size: 20px;\n\t--ck-color-widget-type-around-button-active: var(--ck-color-focus-border);\n\t--ck-color-widget-type-around-button-hover: var(--ck-color-widget-hover-border);\n\t--ck-color-widget-type-around-button-blurred-editable: var(--ck-color-widget-blurred-border);\n\t--ck-color-widget-type-around-button-radar-start-alpha: 0;\n\t--ck-color-widget-type-around-button-radar-end-alpha: .3;\n\t--ck-color-widget-type-around-button-icon: var(--ck-color-base-background);\n}\n\n@define-mixin ck-widget-type-around-button-visible {\n\topacity: 1;\n\tpointer-events: auto;\n}\n\n@define-mixin ck-widget-type-around-button-hidden {\n\topacity: 0;\n\tpointer-events: none;\n}\n\n.ck .ck-widget {\n\t/*\n\t * Styles of the type around buttons\n\t */\n\t& .ck-widget__type-around__button {\n\t\twidth: var(--ck-widget-type-around-button-size);\n\t\theight: var(--ck-widget-type-around-button-size);\n\t\tbackground: var(--ck-color-widget-type-around-button);\n\t\tborder-radius: 100px;\n\t\ttransition: opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve), background var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\n\n\t\t@mixin ck-widget-type-around-button-hidden;\n\n\t\t& svg {\n\t\t\twidth: 10px;\n\t\t\theight: 8px;\n\t\t\ttransform: translate(-50%,-50%);\n\t\t\ttransition: transform .5s ease;\n\t\t\tmargin-top: 1px;\n\n\t\t\t& * {\n\t\t\t\tstroke-dasharray: 10;\n\t\t\t\tstroke-dashoffset: 0;\n\n\t\t\t\tfill: none;\n\t\t\t\tstroke: var(--ck-color-widget-type-around-button-icon);\n\t\t\t\tstroke-width: 1.5px;\n\t\t\t\tstroke-linecap: round;\n\t\t\t\tstroke-linejoin: round;\n\t\t\t}\n\n\t\t\t& line {\n\t\t\t\tstroke-dasharray: 7;\n\t\t\t}\n\t\t}\n\n\t\t&:hover {\n\t\t\t/*\n\t\t\t * Display the "sonar" around the button when hovered.\n\t\t\t */\n\t\t\tanimation: ck-widget-type-around-button-sonar 1s ease infinite;\n\n\t\t\t/*\n\t\t\t * Animate active button\'s icon.\n\t\t\t */\n\t\t\t& svg {\n\t\t\t\t& polyline {\n\t\t\t\t\tanimation: ck-widget-type-around-arrow-dash 2s linear;\n\t\t\t\t}\n\n\t\t\t\t& line {\n\t\t\t\t\tanimation: ck-widget-type-around-arrow-tip-dash 2s linear;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/*\n\t * Show type around buttons when the widget gets selected or being hovered.\n\t */\n\t&.ck-widget_selected,\n\t&:hover {\n\t\t& > .ck-widget__type-around > .ck-widget__type-around__button {\n\t\t\t@mixin ck-widget-type-around-button-visible;\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the buttons when the widget is NOT selected (but the buttons are visible\n\t * and still can be hovered).\n\t */\n\t&:not(.ck-widget_selected) > .ck-widget__type-around > .ck-widget__type-around__button {\n\t\tbackground: var(--ck-color-widget-type-around-button-hover);\n\t}\n\n\t/*\n\t * Styles for the buttons when:\n\t * - the widget is selected,\n\t * - or the button is being hovered (regardless of the widget state).\n\t */\n\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\n\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\n\t\tbackground: var(--ck-color-widget-type-around-button-active);\n\n\t\t&::after {\n\t\t\twidth: calc(var(--ck-widget-type-around-button-size) - 2px);\n\t\t\theight: calc(var(--ck-widget-type-around-button-size) - 2px);\n\t\t\tborder-radius: 100px;\n\t\t\tbackground: linear-gradient(135deg, hsla(0,0%,100%,0) 0%, hsla(0,0%,100%,.3) 100%);\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the "before" button when the widget has a selection handle. Because some space\n\t * is consumed by the handle, the button must be moved slightly to the right to let it breathe.\n\t */\n\t&.ck-widget_with-selection-handle > .ck-widget__type-around > .ck-widget__type-around__button_before {\n\t\tmargin-left: 20px;\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" which is displayed when the user navigates using the keyboard.\n\t */\n\t& .ck-widget__type-around__fake-caret {\n\t\tpointer-events: none;\n\t\theight: 1px;\n\t\tanimation: ck-widget-type-around-fake-caret-pulse linear 1s infinite normal forwards;\n\n\t\t/*\n\t\t * The semi-transparent-outline+background combo improves the contrast\n\t\t * when the background underneath the fake caret is dark.\n\t\t */\n\t\toutline: solid 1px hsla(0, 0%, 100%, .5);\n\t\tbackground: var(--ck-color-base-text);\n\t}\n\n\t/*\n\t * Styles of the widget when the "fake caret" is blinking (e.g. upon keyboard navigation).\n\t * Despite the widget being physically selected in the model, its outline should disappear.\n\t */\n\t&.ck-widget_selected {\n\t\t&.ck-widget_type-around_show-fake-caret_before,\n\t\t&.ck-widget_type-around_show-fake-caret_after {\n\t\t\toutline-color: transparent;\n\t\t}\n\t}\n\n\t&.ck-widget_type-around_show-fake-caret_before,\n\t&.ck-widget_type-around_show-fake-caret_after {\n\t\t/*\n\t\t * When the "fake caret" is visible we simulate that the widget is not selected\n\t\t * (despite being physically selected), so the outline color should be for the\n\t\t * unselected widget.\n\t\t */\n\t\t&.ck-widget_selected:hover {\n\t\t\toutline-color: var(--ck-color-widget-hover-border);\n\t\t}\n\n\t\t/*\n\t\t * Styles of the type around buttons when the "fake caret" is blinking (e.g. upon keyboard navigation).\n\t\t * In this state, the type around buttons would collide with the fake carets so they should disappear.\n\t\t */\n\t\t& > .ck-widget__type-around > .ck-widget__type-around__button {\n\t\t\t@mixin ck-widget-type-around-button-hidden;\n\t\t}\n\n\t\t/*\n\t\t * Fake horizontal caret integration with the selection handle. When the caret is visible, simply\n\t\t * hide the handle because it intersects with the caret (and does not make much sense anyway).\n\t\t */\n\t\t&.ck-widget_with-selection-handle {\n\t\t\t&.ck-widget_selected,\n\t\t\t&.ck-widget_selected:hover {\n\t\t\t\t& > .ck-widget__selection-handle {\n\t\t\t\t\topacity: 0\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t/*\n\t\t * Fake horizontal caret integration with the resize UI. When the caret is visible, simply\n\t\t * hide the resize UI because it creates too much noise. 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e?e===this.name&&("containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t):"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class os extends(q(es)){constructor(...t){super(...t);const e=t[0];this.set("isReadOnly",!1),this.set("isFocused",!1),this.bind("isReadOnly").to(e),this.bind("isFocused").to(e,"isFocused",(t=>t&&e.selection.editableElement==this)),this.listenTo(e.selection,"change",(()=>{this.isFocused=e.isFocused&&e.selection.editableElement==this}))}destroy(){this.stopListening()}}os.prototype.is=function(t,e){return e?e===this.name&&("editableElement"===t||"view:editableElement"===t||"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t):"editableElement"===t||"view:editableElement"===t||"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};const is=Symbol("rootName");class rs extends 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t=this.position.clone();const e=this.position,n=t.parent;if(null===n.parent&&0===t.offset)return{done:!0,value:void 0};if(n==this._boundaryStartParent&&t.offset==this.boundaries.start.offset)return{done:!0,value:void 0};let o;if(n instanceof Qi){if(t.isAtStart)return this.position=as._createBefore(n),this._previous();o=n.data[t.offset-1]}else o=n.getChild(t.offset-1);if(o instanceof Xr)return this.shallow?(t.offset--,this.position=t,this._formatReturnValue("elementStart",o,e,t,1)):(t=new as(o,o.childCount),this.position=t,this.ignoreElementEnd?this._previous():this._formatReturnValue("elementEnd",o,e,t));if(o instanceof Qi){if(this.singleCharacters)return t=new as(o,o.data.length),this.position=t,this._previous();{let n,i=o.data.length;if(o==this._boundaryStartParent){const e=this.boundaries.start.offset;n=new Xi(o,e,o.data.length-e),i=n.data.length,t=as._createBefore(n)}else n=new Xi(o,0,o.data.length),t.offset--;return this.position=t,this._formatReturnValue("text",n,e,t,i)}}if("string"==typeof o){let o;if(this.singleCharacters)o=1;else{const e=n===this._boundaryStartParent?this.boundaries.start.offset:0;o=t.offset-e}t.offset-=o;const i=new Xi(n,t.offset,o);return this.position=t,this._formatReturnValue("text",i,e,t,o)}return t=as._createBefore(n),this.position=t,this._formatReturnValue("elementStart",n,e,t,1)}_formatReturnValue(t,e,n,o,i){return e instanceof Xi&&(e.offsetInText+e.data.length==e.textNode.data.length&&("forward"!=this.direction||this.boundaries&&this.boundaries.end.isEqual(this.position)?n=as._createAfter(e.textNode):(o=as._createAfter(e.textNode),this.position=o)),0===e.offsetInText&&("backward"!=this.direction||this.boundaries&&this.boundaries.start.isEqual(this.position)?n=as._createBefore(e.textNode):(o=as._createBefore(e.textNode),this.position=o))),{done:!1,value:{type:t,item:e,previousPosition:n,nextPosition:o,length:i}}}}class as extends Zi{constructor(t,e){super(),this.parent=t,this.offset=e}get nodeAfter(){return this.parent.is("$text")?null:this.parent.getChild(this.offset)||null}get nodeBefore(){return this.parent.is("$text")?null:this.parent.getChild(this.offset-1)||null}get isAtStart(){return 0===this.offset}get isAtEnd(){const t=this.parent.is("$text")?this.parent.data.length:this.parent.childCount;return this.offset===t}get root(){return this.parent.root}get editableElement(){let t=this.parent;for(;!(t instanceof os);){if(!t.parent)return null;t=t.parent}return t}getShiftedBy(t){const e=as._createAt(this),n=e.offset+t;return e.offset=n<0?0:n,e}getLastMatchingPosition(t,e={}){e.startPosition=this;const n=new ss(e);return n.skip(t),n.position}getAncestors(){return this.parent.is("documentFragment")?[this.parent]:this.parent.getAncestors({includeSelf:!0})}getCommonAncestor(t){const e=this.getAncestors(),n=t.getAncestors();let o=0;for(;e[o]==n[o]&&e[o];)o++;return 0===o?null:e[o-1]}isEqual(t){return this.parent==t.parent&&this.offset==t.offset}isBefore(t){return"before"==this.compareWith(t)}isAfter(t){return"after"==this.compareWith(t)}compareWith(t){if(this.root!==t.root)return"different";if(this.isEqual(t))return"same";const e=this.parent.is("node")?this.parent.getPath():[],n=t.parent.is("node")?t.parent.getPath():[];e.push(this.offset),n.push(t.offset);const o=J(e,n);switch(o){case"prefix":return"before";case"extension":return"after";default:return e[o]<n[o]?"before":"after"}}getWalker(t={}){return t.startPosition=this,new ss(t)}clone(){return new as(this.parent,this.offset)}static _createAt(t,e){if(t instanceof as)return new this(t.parent,t.offset);{const n=t;if("end"==e)e=n.is("$text")?n.data.length:n.childCount;else{if("before"==e)return this._createBefore(n);if("after"==e)return this._createAfter(n);if(0!==e&&!e)throw new b("view-createpositionat-offset-required",n)}return new as(n,e)}}static _createAfter(t){if(t.is("$textProxy"))return new as(t.textNode,t.offsetInText+t.data.length);if(!t.parent)throw new b("view-position-after-root",t,{root:t});return new as(t.parent,t.index+1)}static _createBefore(t){if(t.is("$textProxy"))return new as(t.textNode,t.offsetInText);if(!t.parent)throw new b("view-position-before-root",t,{root:t});return new as(t.parent,t.index)}}as.prototype.is=function(t){return"position"===t||"view:position"===t};class ls extends Zi{constructor(t,e=null){super(),this.start=t.clone(),this.end=e?e.clone():t.clone()}*[Symbol.iterator](){yield*new ss({boundaries:this,ignoreElementEnd:!0})}get isCollapsed(){return this.start.isEqual(this.end)}get isFlat(){return this.start.parent===this.end.parent}get root(){return this.start.root}getEnlarged(){let t=this.start.getLastMatchingPosition(cs,{direction:"backward"}),e=this.end.getLastMatchingPosition(cs);return t.parent.is("$text")&&t.isAtStart&&(t=as._createBefore(t.parent)),e.parent.is("$text")&&e.isAtEnd&&(e=as._createAfter(e.parent)),new 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this.containsPosition(t.start)&&(e=t.start),this.containsPosition(t.end)&&(n=t.end),new ls(e,n)}return null}getWalker(t={}){return t.boundaries=this,new ss(t)}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}getContainedElement(){if(this.isCollapsed)return null;let t=this.start.nodeAfter,e=this.end.nodeBefore;return this.start.parent.is("$text")&&this.start.isAtEnd&&this.start.parent.nextSibling&&(t=this.start.parent.nextSibling),this.end.parent.is("$text")&&this.end.isAtStart&&this.end.parent.previousSibling&&(e=this.end.parent.previousSibling),t&&t.is("element")&&t===e?t:null}clone(){return new ls(this.start,this.end)}*getItems(t={}){t.boundaries=this,t.ignoreElementEnd=!0;const e=new ss(t);for(const t of e)yield t.item}*getPositions(t={}){t.boundaries=this;const e=new ss(t);yield e.position;for(const t of e)yield t.nextPosition}isIntersecting(t){return this.start.isBefore(t.end)&&this.end.isAfter(t.start)}static _createFromParentsAndOffsets(t,e,n,o){return new this(new as(t,e),new as(n,o))}static _createFromPositionAndShift(t,e){const n=t,o=t.getShiftedBy(e);return e>0?new this(n,o):new this(o,n)}static _createIn(t){return this._createFromParentsAndOffsets(t,0,t,t.childCount)}static _createOn(t){const e=t.is("$textProxy")?t.offsetSize:1;return this._createFromPositionAndShift(as._createBefore(t),e)}}function cs(t){return!(!t.item.is("attributeElement")&&!t.item.is("uiElement"))}ls.prototype.is=function(t){return"range"===t||"view:range"===t};class ds extends(T(Zi)){constructor(...t){super(),this._ranges=[],this._lastRangeBackward=!1,this._isFake=!1,this._fakeSelectionLabel="",t.length&&this.setTo(...t)}get isFake(){return this._isFake}get fakeSelectionLabel(){return this._fakeSelectionLabel}get anchor(){if(!this._ranges.length)return null;const t=this._ranges[this._ranges.length-1];return(this._lastRangeBackward?t.end:t.start).clone()}get focus(){if(!this._ranges.length)return null;const t=this._ranges[this._ranges.length-1];return(this._lastRangeBackward?t.start:t.end).clone()}get isCollapsed(){return 1===this.rangeCount&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}get editableElement(){return this.anchor?this.anchor.editableElement:null}*getRanges(){for(const t of this._ranges)yield t.clone()}getFirstRange(){let t=null;for(const e of this._ranges)t&&!e.start.isBefore(t.start)||(t=e);return t?t.clone():null}getLastRange(){let t=null;for(const e of this._ranges)t&&!e.end.isAfter(t.end)||(t=e);return t?t.clone():null}getFirstPosition(){const t=this.getFirstRange();return t?t.start.clone():null}getLastPosition(){const t=this.getLastRange();return t?t.end.clone():null}isEqual(t){if(this.isFake!=t.isFake)return!1;if(this.isFake&&this.fakeSelectionLabel!=t.fakeSelectionLabel)return!1;if(this.rangeCount!=t.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(t.anchor)||!this.focus.isEqual(t.focus))return!1;for(const e of this._ranges){let n=!1;for(const o of t._ranges)if(e.isEqual(o)){n=!0;break}if(!n)return!1}return!0}isSimilar(t){if(this.isBackward!=t.isBackward)return!1;const e=Z(this.getRanges());if(e!=Z(t.getRanges()))return!1;if(0==e)return!0;for(let e of this.getRanges()){e=e.getTrimmed();let n=!1;for(let o of t.getRanges())if(o=o.getTrimmed(),e.start.isEqual(o.start)&&e.end.isEqual(o.end)){n=!0;break}if(!n)return!1}return!0}getSelectedElement(){return 1!==this.rangeCount?null:this.getFirstRange().getContainedElement()}setTo(...t){let[e,n,o]=t;if("object"==typeof n&&(o=n,n=void 0),null===e)this._setRanges([]),this._setFakeOptions(o);else if(e instanceof ds||e instanceof hs)this._setRanges(e.getRanges(),e.isBackward),this._setFakeOptions({fake:e.isFake,label:e.fakeSelectionLabel});else if(e instanceof ls)this._setRanges([e],o&&o.backward),this._setFakeOptions(o);else if(e instanceof as)this._setRanges([new ls(e)]),this._setFakeOptions(o);else if(e instanceof Yi){const t=!!o&&!!o.backward;let i;if(void 0===n)throw new b("view-selection-setto-required-second-parameter",this);i="in"==n?ls._createIn(e):"on"==n?ls._createOn(e):new ls(as._createAt(e,n)),this._setRanges([i],t),this._setFakeOptions(o)}else{if(!Y(e))throw new b("view-selection-setto-not-selectable",this);this._setRanges(e,o&&o.backward),this._setFakeOptions(o)}this.fire("change")}setFocus(t,e){if(null===this.anchor)throw new b("view-selection-setfocus-no-ranges",this);const n=as._createAt(t,e);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.pop(),"before"==n.compareWith(o)?this._addRange(new ls(n,o),!0):this._addRange(new ls(o,n)),this.fire("change")}_setRanges(t,e=!1){t=Array.from(t),this._ranges=[];for(const e of t)this._addRange(e);this._lastRangeBackward=!!e}_setFakeOptions(t={}){this._isFake=!!t.fake,this._fakeSelectionLabel=t.fake&&t.label||""}_addRange(t,e=!1){if(!(t instanceof ls))throw new b("view-selection-add-range-not-range",this);this._pushRange(t),this._lastRangeBackward=!!e}_pushRange(t){for(const e of this._ranges)if(t.isIntersecting(e))throw new b("view-selection-range-intersects",this,{addedRange:t,intersectingRange:e});this._ranges.push(new ls(t.start,t.end))}}ds.prototype.is=function(t){return"selection"===t||"view:selection"===t};class hs extends(T(Zi)){constructor(...t){super(),this._selection=new ds,this._selection.delegate("change").to(this),t.length&&this._selection.setTo(...t)}get isFake(){return this._selection.isFake}get fakeSelectionLabel(){return this._selection.fakeSelectionLabel}get anchor(){return this._selection.anchor}get focus(){return this._selection.focus}get 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u{constructor(t,e,n){super(t,e),this.startRange=n,this._eventPhase="none",this._currentTarget=null}get eventPhase(){return this._eventPhase}get currentTarget(){return this._currentTarget}}const gs=Symbol("bubbling contexts");function ms(t){return class extends t{fire(t,...e){try{const n=t instanceof u?t:new u(this,t),o=ks(this);if(!o.size)return;if(ps(n,"capturing",this),fs(o,"$capture",n,...e))return n.return;const i=n.startRange||this.selection.getFirstRange(),r=i?i.getContainedElement():null,s=!!r&&Boolean(bs(o,r));let a=r||function(t){if(!t)return null;const e=t.start.parent,n=t.end.parent,o=e.getPath(),i=n.getPath();return o.length>i.length?e:n}(i);if(ps(n,"atTarget",a),!s){if(fs(o,"$text",n,...e))return n.return;ps(n,"bubbling",a)}for(;a;){if(a.is("rootElement")){if(fs(o,"$root",n,...e))return n.return}else if(a.is("element")&&fs(o,a.name,n,...e))return n.return;if(fs(o,a,n,...e))return n.return;a=a.parent,ps(n,"bubbling",a)}return 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As(){if(Cs(this))return null;let t=this.parent;for(;t&&t.is("attributeElement");){if(Cs(t)>1)return null;t=t.parent}return!t||Cs(t)>1?null:this.childCount}function Cs(t){return Array.from(t.getChildren()).filter((t=>!t.is("uiElement"))).length}_s.DEFAULT_PRIORITY=10,_s.prototype.is=function(t,e){return e?e===this.name&&("attributeElement"===t||"view:attributeElement"===t||"element"===t||"view:element"===t):"attributeElement"===t||"view:attributeElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class vs extends Xr{constructor(t,e,n,o){super(t,e,n,o),this.getFillerOffset=ys}_insertChild(t,e){if(e&&(e instanceof Yi||Array.from(e).length>0))throw new b("view-emptyelement-cannot-add",[this,e]);return 0}}function ys(){return null}vs.prototype.is=function(t,e){return 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a=r.getLastMatchingPosition((t=>(t.item.is("uiElement")&&(s=!0),!(!t.item.is("uiElement")&&!t.item.is("attributeElement")))));if(s){const e=n.viewPositionToDom(a);o?t.collapse(e.parent,e.offset):t.extend(e.parent,e.offset)}}}}(0,n,t.domConverter)),{priority:"low"})}function Ts(){return null}xs.prototype.is=function(t,e){return e?e===this.name&&("uiElement"===t||"view:uiElement"===t||"element"===t||"view:element"===t):"uiElement"===t||"view:uiElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class Ds extends Xr{constructor(...t){super(...t),this.getFillerOffset=Ss}_insertChild(t,e){if(e&&(e instanceof Yi||Array.from(e).length>0))throw new b("view-rawelement-cannot-add",[this,e]);return 0}render(){}}function Ss(){return null}Ds.prototype.is=function(t,e){return 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Qi(t,e.data):e))}(this.document,e);for(const e of o)null!==e.parent&&e._remove(),e.parent=this,this._children.splice(t,0,e),t++,n++;return n}_removeChildren(t,e=1){this._fireChange("children",this);for(let n=t;n<t+e;n++)this._children[n].parent=null;return this._children.splice(t,e)}_fireChange(t,e){this.fire("change:"+t,e)}}Bs.prototype.is=function(t){return"documentFragment"===t||"view:documentFragment"===t};class Is{constructor(t){this.document=t,this._cloneGroups=new Map,this._slotFactory=null}setSelection(...t){this.document.selection._setTo(...t)}setSelectionFocus(...t){this.document.selection._setFocus(...t)}createDocumentFragment(t){return new Bs(this.document,t)}createText(t){return new Qi(this.document,t)}createAttributeElement(t,e,n={}){const o=new _s(this.document,t,e);return"number"==typeof 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n&&(i.render=n),o.renderUnsafeAttributes&&i._unsafeAttributesToRender.push(...o.renderUnsafeAttributes),i}setAttribute(t,e,n){n._setAttribute(t,e)}removeAttribute(t,e){e._removeAttribute(t)}addClass(t,e){e._addClass(t)}removeClass(t,e){e._removeClass(t)}setStyle(t,e,n){Ct(t)&&void 0===n?e._setStyle(t):n._setStyle(t,e)}removeStyle(t,e){e._removeStyle(t)}setCustomProperty(t,e,n){n._setCustomProperty(t,e)}removeCustomProperty(t,e){return e._removeCustomProperty(t)}breakAttributes(t){return t instanceof as?this._breakAttributes(t):this._breakAttributesRange(t)}breakContainer(t){const e=t.parent;if(!e.is("containerElement"))throw new b("view-writer-break-non-container-element",this.document);if(!e.parent)throw new b("view-writer-break-root",this.document);if(t.isAtStart)return as._createBefore(e);if(!t.isAtEnd){const n=e._clone(!1);this.insert(as._createAfter(e),n);const o=new ls(t,as._createAt(e,"end")),i=new as(n,0);this.move(o,i)}return as._createAfter(e)}mergeAttributes(t){const 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n=t[t.length-1],o=!e.is("uiElement");return n&&n.breakAttributes==o?n.nodes.push(e):t.push({breakAttributes:o,nodes:[e]}),t}),[]);let o=null,i=t;for(const{nodes:t,breakAttributes:e}of n){const n=this._insertNodes(i,t,e);o||(o=n.start),i=n.end}return o?new ls(o,i):new ls(t)}remove(t){const e=t instanceof ls?t:ls._createOn(t);if(Ls(e,this.document),e.isCollapsed)return new Bs(this.document);const{start:n,end:o}=this._breakAttributesRange(e,!0),i=n.parent,r=o.offset-n.offset,s=i._removeChildren(n.offset,r);for(const t of s)this._removeFromClonedElementsGroup(t);const a=this.mergeAttributes(n);return e.start=a,e.end=a.clone(),new Bs(this.document,s)}clear(t,e){Ls(t,this.document);const n=t.getWalker({direction:"backward",ignoreElementEnd:!0});for(const o of n){const n=o.item;let i;if(n.is("element")&&e.isSimilar(n))i=ls._createOn(n);else if(!o.nextPosition.isAfter(t.start)&&n.is("$textProxy")){const t=n.getAncestors().find((t=>t.is("element")&&e.isSimilar(t)));t&&(i=ls._createIn(t))}i&&(i.end.isAfter(t.end)&&(i.end=t.end),i.start.isBefore(t.start)&&(i.start=t.start),this.remove(i))}}move(t,e){let n;if(e.isAfter(t.end)){const o=(e=this._breakAttributes(e,!0)).parent,i=o.childCount;t=this._breakAttributesRange(t,!0),n=this.remove(t),e.offset+=o.childCount-i}else n=this.remove(t);return this.insert(e,n)}wrap(t,e){if(!(e instanceof _s))throw new b("view-writer-wrap-invalid-attribute",this.document);if(Ls(t,this.document),t.isCollapsed){let o=t.start;o.parent.is("element")&&(n=o.parent,!Array.from(n.getChildren()).some((t=>!t.is("uiElement"))))&&(o=o.getLastMatchingPosition((t=>t.item.is("uiElement")))),o=this._wrapPosition(o,e);const i=this.document.selection;return i.isCollapsed&&i.getFirstPosition().isEqual(t.start)&&this.setSelection(o),new ls(o)}return this._wrapRange(t,e);var n}unwrap(t,e){if(!(e instanceof _s))throw new b("view-writer-unwrap-invalid-attribute",this.document);if(Ls(t,this.document),t.isCollapsed)return t;const{start:n,end:o}=this._breakAttributesRange(t,!0),i=n.parent,r=this._unwrapChildren(i,n.offset,o.offset,e),s=this.mergeAttributes(r.start);s.isEqual(r.start)||r.end.offset--;const a=this.mergeAttributes(r.end);return new ls(s,a)}rename(t,e){const n=new es(this.document,t,e.getAttributes());return this.insert(as._createAfter(e),n),this.move(ls._createIn(e),as._createAt(n,0)),this.remove(ls._createOn(e)),n}clearClonedElementsGroup(t){this._cloneGroups.delete(t)}createPositionAt(t,e){return as._createAt(t,e)}createPositionAfter(t){return as._createAfter(t)}createPositionBefore(t){return as._createBefore(t)}createRange(...t){return new ls(...t)}createRangeOn(t){return ls._createOn(t)}createRangeIn(t){return ls._createIn(t)}createSelection(...t){return new ds(...t)}createSlot(t){if(!this._slotFactory)throw new b("view-writer-invalid-create-slot-context",this.document);return this._slotFactory(this,t)}_registerSlotFactory(t){this._slotFactory=t}_clearSlotFactory(){this._slotFactory=null}_insertNodes(t,e,n){let o,i;if(o=n?Ps(t):t.parent.is("$text")?t.parent.parent:t.parent,!o)throw new b("view-writer-invalid-position-container",this.document);i=n?this._breakAttributes(t,!0):t.parent.is("$text")?Vs(t):t;const r=o._insertChild(i.offset,e);for(const t of e)this._addToClonedElementsGroup(t);const s=i.getShiftedBy(r),a=this.mergeAttributes(i);a.isEqual(i)||s.offset--;const l=this.mergeAttributes(s);return new ls(a,l)}_wrapChildren(t,e,n,o){let i=e;const r=[];for(;i<n;){const e=t.getChild(i),n=e.is("$text"),s=e.is("attributeElement");if(s&&this._wrapAttributeElement(o,e))r.push(new as(t,i));else if(n||!s||Rs(o,e)){const n=o._clone();e._remove(),n._appendChild(e),t._insertChild(i,n),this._addToClonedElementsGroup(n),r.push(new as(t,i))}else this._wrapChildren(e,0,e.childCount,o);i++}let s=0;for(const t of r){if(t.offset-=s,t.offset==e)continue;this.mergeAttributes(t).isEqual(t)||(s++,n--)}return ls._createFromParentsAndOffsets(t,e,t,n)}_unwrapChildren(t,e,n,o){let i=e;const r=[];for(;i<n;){const e=t.getChild(i);if(e.is("attributeElement"))if(e.isSimilar(o)){const o=e.getChildren(),s=e.childCount;e._remove(),t._insertChild(i,o),this._removeFromClonedElementsGroup(e),r.push(new as(t,i),new as(t,i+s)),i+=s,n+=s-1}else this._unwrapAttributeElement(o,e)?(r.push(new as(t,i),new as(t,i+1)),i++):(this._unwrapChildren(e,0,e.childCount,o),i++);else i++}let s=0;for(const t of r){if(t.offset-=s,t.offset==e||t.offset==n)continue;this.mergeAttributes(t).isEqual(t)||(s++,n--)}return ls._createFromParentsAndOffsets(t,e,t,n)}_wrapRange(t,e){const{start:n,end:o}=this._breakAttributesRange(t,!0),i=n.parent,r=this._wrapChildren(i,n.offset,o.offset,e),s=this.mergeAttributes(r.start);s.isEqual(r.start)||r.end.offset--;const a=this.mergeAttributes(r.end);return new ls(s,a)}_wrapPosition(t,e){if(e.isSimilar(t.parent))return zs(t.clone());t.parent.is("$text")&&(t=Vs(t));const n=this.createAttributeElement("_wrapPosition-fake-element");n._priority=Number.POSITIVE_INFINITY,n.isSimilar=()=>!1,t.parent._insertChild(t.offset,n);const o=new ls(t,t.getShiftedBy(1));this.wrap(o,e);const i=new as(n.parent,n.index);n._remove();const r=i.nodeBefore,s=i.nodeAfter;return r instanceof Qi&&s instanceof Qi?Fs(r,s):zs(i)}_wrapAttributeElement(t,e){if(!Hs(t,e))return!1;if(t.name!==e.name||t.priority!==e.priority)return!1;for(const n of t.getAttributeKeys())if("class"!==n&&"style"!==n&&e.hasAttribute(n)&&e.getAttribute(n)!==t.getAttribute(n))return!1;for(const n of t.getStyleNames())if(e.hasStyle(n)&&e.getStyle(n)!==t.getStyle(n))return!1;for(const n of t.getAttributeKeys())"class"!==n&&"style"!==n&&(e.hasAttribute(n)||this.setAttribute(n,t.getAttribute(n),e));for(const n of t.getStyleNames())e.hasStyle(n)||this.setStyle(n,t.getStyle(n),e);for(const n of t.getClassNames())e.hasClass(n)||this.addClass(n,e);return!0}_unwrapAttributeElement(t,e){if(!Hs(t,e))return!1;if(t.name!==e.name||t.priority!==e.priority)return!1;for(const n of t.getAttributeKeys())if("class"!==n&&"style"!==n&&(!e.hasAttribute(n)||e.getAttribute(n)!==t.getAttribute(n)))return!1;if(!e.hasClass(...t.getClassNames()))return!1;for(const n of t.getStyleNames())if(!e.hasStyle(n)||e.getStyle(n)!==t.getStyle(n))return!1;for(const n of t.getAttributeKeys())"class"!==n&&"style"!==n&&this.removeAttribute(n,e);return this.removeClass(Array.from(t.getClassNames()),e),this.removeStyle(Array.from(t.getStyleNames()),e),!0}_breakAttributesRange(t,e=!1){const n=t.start,o=t.end;if(Ls(t,this.document),t.isCollapsed){const n=this._breakAttributes(t.start,e);return new ls(n,n)}const i=this._breakAttributes(o,e),r=i.parent.childCount,s=this._breakAttributes(n,e);return i.offset+=i.parent.childCount-r,new ls(s,i)}_breakAttributes(t,e=!1){const 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as(t.parent.parent,t.parent.index+1)}function Fs(t,e){const n=t.data.length;return t._data+=e.data,e._remove(),new as(t,n)}const Os=[Qi,_s,es,vs,Ds,xs];function Ns(t,e){for(const n of t){if(!Os.some((t=>n instanceof t)))throw new b("view-writer-insert-invalid-node-type",e);n.is("$text")||Ns(n.getChildren(),e)}}function Ms(t){return t&&(t.is("containerElement")||t.is("documentFragment"))}function Ls(t,e){const n=Ps(t.start),o=Ps(t.end);if(!n||!o||n!==o)throw new b("view-writer-invalid-range-container",e)}function Hs(t,e){return null===t.id&&null===e.id}const qs=t=>t.createTextNode(" "),Ws=t=>{const e=t.createElement("span");return e.dataset.ckeFiller="true",e.innerText=" ",e},js=t=>{const e=t.createElement("br");return e.dataset.ckeFiller="true",e},Us="⁠".repeat(7);function $s(t){return zo(t)&&t.data.substr(0,7)===Us}function Gs(t){return 7==t.data.length&&$s(t)}function Ks(t){return $s(t)?t.data.slice(7):t.data}function Zs(t,e){if(e.keyCode==hi.arrowleft){const t=e.domTarget.ownerDocument.defaultView.getSelection();if(1==t.rangeCount&&t.getRangeAt(0).collapsed){const e=t.getRangeAt(0).startContainer,n=t.getRangeAt(0).startOffset;$s(e)&&n<=7&&t.collapse(e,0)}}}var Js=n(9315),Ys={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Js.Z,Ys);Js.Z.locals;class Qs extends(q()){constructor(t,e){super(),this.domDocuments=new Set,this.domConverter=t,this.markedAttributes=new Set,this.markedChildren=new Set,this.markedTexts=new Set,this.selection=e,this.set("isFocused",!1),this.set("_isFocusChanging",!1),this.set("isSelecting",!1),i.isBlink&&!i.isAndroid&&this.on("change:isSelecting",(()=>{this.isSelecting||this.render()})),this.set("isComposing",!1),this.on("change:isComposing",(()=>{this.isComposing||this.render()})),this._inlineFiller=null,this._fakeSelectionContainer=null}markToSync(t,e){if("text"===t)this.domConverter.mapViewToDom(e.parent)&&this.markedTexts.add(e);else{if(!this.domConverter.mapViewToDom(e))return;if("attributes"===t)this.markedAttributes.add(e);else{if("children"!==t)throw new b("view-renderer-unknown-type",this);this.markedChildren.add(e)}}}render(){if(this.isComposing&&!i.isAndroid)return;let t=null;const e=!(i.isBlink&&!i.isAndroid)||!this.isSelecting;for(const t of this.markedChildren)this._updateChildrenMappings(t);e?(this._inlineFiller&&!this._isSelectionInInlineFiller()&&this._removeInlineFiller(),this._inlineFiller?t=this._getInlineFillerPosition():this._needsInlineFillerAtSelection()&&(t=this.selection.getFirstPosition(),this.markedChildren.add(t.parent))):this._inlineFiller&&this._inlineFiller.parentNode&&(t=this.domConverter.domPositionToView(this._inlineFiller),t&&t.parent.is("$text")&&(t=as._createBefore(t.parent)));for(const t of this.markedAttributes)this._updateAttrs(t);for(const e of this.markedChildren)this._updateChildren(e,{inlineFillerPosition:t});for(const e of this.markedTexts)!this.markedChildren.has(e.parent)&&this.domConverter.mapViewToDom(e.parent)&&this._updateText(e,{inlineFillerPosition:t});if(e)if(t){const e=this.domConverter.viewPositionToDom(t),n=e.parent.ownerDocument;$s(e.parent)?this._inlineFiller=e.parent:this._inlineFiller=Xs(n,e.parent,e.offset)}else this._inlineFiller=null;this._updateFocus(),this._updateSelection(),this.markedTexts.clear(),this.markedAttributes.clear(),this.markedChildren.clear()}_updateChildrenMappings(t){if(!this.domConverter.mapViewToDom(t))return;const e=Array.from(this.domConverter.mapViewToDom(t).childNodes),n=Array.from(this.domConverter.viewChildrenToDom(t,{withChildren:!1})),o=this._diffNodeLists(e,n),i=this._findReplaceActions(o,e,n);if(-1!==i.indexOf("replace")){const o={equal:0,insert:0,delete:0};for(const r of i)if("replace"===r){const i=o.equal+o.insert,r=o.equal+o.delete,s=t.getChild(i);!s||s.is("uiElement")||s.is("rawElement")||this._updateElementMappings(s,e[r]),Qo(n[i]),o.equal++}else o[r]++}}_updateElementMappings(t,e){this.domConverter.unbindDomElement(e),this.domConverter.bindElements(e,t),this.markedChildren.add(t),this.markedAttributes.add(t)}_getInlineFillerPosition(){const t=this.selection.getFirstPosition();return t.parent.is("$text")?as._createBefore(t.parent):t}_isSelectionInInlineFiller(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const t=this.selection.getFirstPosition(),e=this.domConverter.viewPositionToDom(t);return!!(e&&zo(e.parent)&&$s(e.parent))}_removeInlineFiller(){const t=this._inlineFiller;if(!$s(t))throw new b("view-renderer-filler-was-lost",this);Gs(t)?t.remove():t.data=t.data.substr(7),this._inlineFiller=null}_needsInlineFillerAtSelection(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const t=this.selection.getFirstPosition(),e=t.parent,n=t.offset;if(!this.domConverter.mapViewToDom(e.root))return!1;if(!e.is("element"))return!1;if(!function(t){if("false"==t.getAttribute("contenteditable"))return!1;const e=t.findAncestor((t=>t.hasAttribute("contenteditable")));return!e||"true"==e.getAttribute("contenteditable")}(e))return!1;if(n===e.getFillerOffset())return!1;const o=t.nodeBefore,r=t.nodeAfter;return!(o instanceof Qi||r instanceof Qi)&&(!i.isAndroid||!o&&!r)}_updateText(t,e){const n=this.domConverter.findCorrespondingDomText(t);let o=this.domConverter.viewToDom(t).data;const i=e.inlineFillerPosition;i&&i.parent==t.parent&&i.offset==t.index&&(o=Us+o),oa(n,o)}_updateAttrs(t){const e=this.domConverter.mapViewToDom(t);if(!e)return;const n=Array.from(e.attributes).map((t=>t.name)),o=t.getAttributeKeys();for(const n of o)this.domConverter.setDomElementAttribute(e,n,t.getAttribute(n),t);for(const o of n)t.hasAttribute(o)||this.domConverter.removeDomElementAttribute(e,o)}_updateChildren(t,e){const n=this.domConverter.mapViewToDom(t);if(!n)return;if(i.isAndroid){let t=null;for(const e of Array.from(n.childNodes)){if(t&&zo(t)&&zo(e)){n.normalize();break}t=e}}const o=e.inlineFillerPosition,r=n.childNodes,s=Array.from(this.domConverter.viewChildrenToDom(t,{bind:!0}));o&&o.parent===t&&Xs(n.ownerDocument,s,o.offset);const a=this._diffNodeLists(r,s),l=i.isAndroid?this._findReplaceActions(a,r,s,{replaceText:!0}):a;let c=0;const d=new Set;for(const t of l)"delete"===t?(d.add(r[c]),Qo(r[c])):"equal"!==t&&"replace"!==t||c++;c=0;for(const t of l)"insert"===t?($o(n,c,s[c]),c++):"replace"===t?(oa(r[c],s[c].data),c++):"equal"===t&&(this._markDescendantTextToSync(this.domConverter.domToView(s[c])),c++);for(const t of d)t.parentNode||this.domConverter.unbindDomElement(t)}_diffNodeLists(t,e){return c(t=function(t,e){const n=Array.from(t);if(0==n.length||!e)return n;n[n.length-1]==e&&n.pop();return n}(t,this._fakeSelectionContainer),e,na.bind(null,this.domConverter))}_findReplaceActions(t,e,n,o={}){if(-1===t.indexOf("insert")||-1===t.indexOf("delete"))return t;let i=[],r=[],s=[];const a={equal:0,insert:0,delete:0};for(const l of t)"insert"===l?s.push(n[a.equal+a.insert]):"delete"===l?r.push(e[a.equal+a.delete]):(i=i.concat(c(r,s,o.replaceText?ea:ta).map((t=>"equal"===t?"replace":t))),i.push("equal"),r=[],s=[]),a[l]++;return i.concat(c(r,s,o.replaceText?ea:ta).map((t=>"equal"===t?"replace":t)))}_markDescendantTextToSync(t){if(t)if(t.is("$text"))this.markedTexts.add(t);else if(t.is("element"))for(const e of t.getChildren())this._markDescendantTextToSync(e)}_updateSelection(){if(i.isBlink&&!i.isAndroid&&this.isSelecting&&!this.markedChildren.size)return;if(this._isFocusChanging)return;if(0===this.selection.rangeCount)return this._removeDomSelection(),void this._removeFakeSelection();const t=this.domConverter.mapViewToDom(this.selection.editableElement);this.isFocused&&t&&(this.selection.isFake?this._updateFakeSelection(t):this._fakeSelectionContainer&&this._fakeSelectionContainer.isConnected?(this._removeFakeSelection(),this._updateDomSelection(t)):this.isComposing&&i.isAndroid||this._updateDomSelection(t))}_updateFakeSelection(t){const e=t.ownerDocument;this._fakeSelectionContainer||(this._fakeSelectionContainer=function(t){const e=t.createElement("div");return e.className="ck-fake-selection-container",Object.assign(e.style,{position:"fixed",top:0,left:"-9999px",width:"42px"}),e.textContent=" ",e}(e));const n=this._fakeSelectionContainer;if(this.domConverter.bindFakeSelection(n,this.selection),!this._fakeSelectionNeedsUpdate(t))return;n.parentElement&&n.parentElement==t||t.appendChild(n),n.textContent=this.selection.fakeSelectionLabel||" ";const o=e.getSelection(),i=e.createRange();o.removeAllRanges(),i.selectNodeContents(n),o.addRange(i)}_updateDomSelection(t){const e=t.ownerDocument.defaultView.getSelection();if(!this._domSelectionNeedsUpdate(e))return;const n=this.domConverter.viewPositionToDom(this.selection.anchor),o=this.domConverter.viewPositionToDom(this.selection.focus);e.collapse(n.parent,n.offset),e.extend(o.parent,o.offset),i.isGecko&&function(t,e){const n=t.parent;if(n.nodeType!=Node.ELEMENT_NODE||t.offset!=n.childNodes.length-1)return;const o=n.childNodes[t.offset];o&&"BR"==o.tagName&&e.addRange(e.getRangeAt(0))}(o,e)}_domSelectionNeedsUpdate(t){if(!this.domConverter.isDomSelectionCorrect(t))return!0;const e=t&&this.domConverter.domSelectionToView(t);return(!e||!this.selection.isEqual(e))&&!(!this.selection.isCollapsed&&this.selection.isSimilar(e))}_fakeSelectionNeedsUpdate(t){const e=this._fakeSelectionContainer,n=t.ownerDocument.getSelection();return!e||e.parentElement!==t||(n.anchorNode!==e&&!e.contains(n.anchorNode)||e.textContent!==this.selection.fakeSelectionLabel)}_removeDomSelection(){for(const t of this.domDocuments){const e=t.getSelection();if(e.rangeCount){const n=t.activeElement,o=this.domConverter.mapDomToView(n);n&&o&&e.removeAllRanges()}}}_removeFakeSelection(){const t=this._fakeSelectionContainer;t&&t.remove()}_updateFocus(){if(this.isFocused){const t=this.selection.editableElement;t&&this.domConverter.focus(t)}}}function Xs(t,e,n){const o=e instanceof Array?e:e.childNodes,i=o[n];if(zo(i))return i.data=Us+i.data,i;{const i=t.createTextNode(Us);return Array.isArray(e)?o.splice(n,0,i):$o(e,n,i),i}}function ta(t,e){return xo(t)&&xo(e)&&!zo(t)&&!zo(e)&&!Go(t)&&!Go(e)&&t.tagName.toLowerCase()===e.tagName.toLowerCase()}function ea(t,e){return xo(t)&&xo(e)&&zo(t)&&zo(e)}function na(t,e,n){return e===n||(zo(e)&&zo(n)?e.data===n.data:!(!t.isBlockFiller(e)||!t.isBlockFiller(n)))}function oa(t,e){const n=t.data;if(n==e)return;const o=s(n,e);for(const e of o)"insert"===e.type?t.insertData(e.index,e.values.join("")):t.deleteData(e.index,e.howMany)}const ia=js(Po.document),ra=qs(Po.document),sa=Ws(Po.document),aa="data-ck-unsafe-attribute-",la="data-ck-unsafe-element";class ca{constructor(t,e={}){this.document=t,this.renderingMode=e.renderingMode||"editing",this.blockFillerMode=e.blockFillerMode||("editing"===this.renderingMode?"br":"nbsp"),this.preElements=["pre"],this.blockElements=["address","article","aside","blockquote","caption","center","dd","details","dir","div","dl","dt","fieldset","figcaption","figure","footer","form","h1","h2","h3","h4","h5","h6","header","hgroup","legend","li","main","menu","nav","ol","p","pre","section","summary","table","tbody","td","tfoot","th","thead","tr","ul"],this.inlineObjectElements=["object","iframe","input","button","textarea","select","option","video","embed","audio","img","canvas"],this.unsafeElements=["script","style"],this._domDocument="editing"===this.renderingMode?Po.document:Po.document.implementation.createHTMLDocument(""),this._domToViewMapping=new WeakMap,this._viewToDomMapping=new WeakMap,this._fakeSelectionMapping=new WeakMap,this._rawContentElementMatcher=new tr,this._encounteredRawContentDomNodes=new WeakSet}bindFakeSelection(t,e){this._fakeSelectionMapping.set(t,new ds(e))}fakeSelectionToView(t){return this._fakeSelectionMapping.get(t)}bindElements(t,e){this._domToViewMapping.set(t,e),this._viewToDomMapping.set(e,t)}unbindDomElement(t){const e=this._domToViewMapping.get(t);if(e){this._domToViewMapping.delete(t),this._viewToDomMapping.delete(e);for(const e of Array.from(t.children))this.unbindDomElement(e)}}bindDocumentFragments(t,e){this._domToViewMapping.set(t,e),this._viewToDomMapping.set(e,t)}shouldRenderAttribute(t,e,n){return"data"===this.renderingMode||!(t=t.toLowerCase()).startsWith("on")&&(("srcdoc"!==t||!e.match(/\bon\S+\s*=|javascript:|<\s*\/*script/i))&&("img"===n&&("src"===t||"srcset"===t)||("source"===n&&"srcset"===t||!e.match(/^\s*(javascript:|data:(image\/svg|text\/x?html))/i))))}setContentOf(t,e){if("data"===this.renderingMode)return void(t.innerHTML=e);const n=(new DOMParser).parseFromString(e,"text/html"),o=n.createDocumentFragment(),i=n.body.childNodes;for(;i.length>0;)o.appendChild(i[0]);const r=n.createTreeWalker(o,NodeFilter.SHOW_ELEMENT),s=[];let a;for(;a=r.nextNode();)s.push(a);for(const t of s){for(const e of t.getAttributeNames())this.setDomElementAttribute(t,e,t.getAttribute(e));const e=t.tagName.toLowerCase();this._shouldRenameElement(e)&&(ua(e),t.replaceWith(this._createReplacementDomElement(e,t)))}for(;t.firstChild;)t.firstChild.remove();t.append(o)}viewToDom(t,e={}){if(t.is("$text")){const e=this._processDataFromViewText(t);return this._domDocument.createTextNode(e)}{if(this.mapViewToDom(t))return this.mapViewToDom(t);let n;if(t.is("documentFragment"))n=this._domDocument.createDocumentFragment(),e.bind&&this.bindDocumentFragments(n,t);else{if(t.is("uiElement"))return 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h==e&&u==t;var g=!0;r.set(t,e),r.set(e,t);for(var m=s;++c<l;){var p=t[d=a[c]],f=e[d];if(o)var b=s?o(f,p,d,e,t,r):o(p,f,d,t,e,r);if(!(void 0===b?p===f||i(p,f,n,o,r):b)){g=!1;break}m||(m="constructor"==d)}if(g&&!m){var k=t.constructor,w=e.constructor;k==w||!("constructor"in t)||!("constructor"in e)||"function"==typeof k&&k instanceof k&&"function"==typeof w&&w instanceof w||(g=!1)}return r.delete(t),r.delete(e),g};var $a="[object Arguments]",Ga="[object Array]",Ka="[object Object]",Za=Object.prototype.hasOwnProperty;const Ja=function(t,e,n,o,i,r){var s=ht(t),a=ht(e),l=s?Ga:$n(t),c=a?Ga:$n(e),d=(l=l==$a?Ka:l)==Ka,h=(c=c==$a?Ka:c)==Ka,u=l==c;if(u&&Ne(t)){if(!Ne(e))return!1;s=!0,d=!1}if(u&&!d)return r||(r=new _e),s||Je(t)?Na(t,e,n,o,i,r):Wa(t,e,l,n,o,i,r);if(!(1&n)){var g=d&&Za.call(t,"__wrapped__"),m=h&&Za.call(e,"__wrapped__");if(g||m){var p=g?t.value():t,f=m?e.value():e;return r||(r=new _e),i(p,f,n,o,r)}}return!!u&&(r||(r=new _e),Ua(t,e,n,o,i,r))};const Ya=function t(e,n,o,i,r){return e===n||(null==e||null==n||!ut(e)&&!ut(n)?e!=e&&n!=n:Ja(e,n,o,i,t,r))};const Qa=function(t,e,n){var o=(n="function"==typeof n?n:void 0)?n(t,e):void 0;return void 0===o?Ya(t,e,void 0,n):!!o};class Xa extends ga{constructor(t){super(t),this._config={childList:!0,characterData:!0,subtree:!0},this.domConverter=t.domConverter,this.renderer=t._renderer,this._domElements=[],this._mutationObserver=new window.MutationObserver(this._onMutations.bind(this))}flush(){this._onMutations(this._mutationObserver.takeRecords())}observe(t){this._domElements.push(t),this.isEnabled&&this._mutationObserver.observe(t,this._config)}enable(){super.enable();for(const t of this._domElements)this._mutationObserver.observe(t,this._config)}disable(){super.disable(),this._mutationObserver.disconnect()}destroy(){super.destroy(),this._mutationObserver.disconnect()}_onMutations(t){if(0===t.length)return;const e=this.domConverter,n=new Set,o=new Set;for(const n of t){const t=e.mapDomToView(n.target);t&&(t.is("uiElement")||t.is("rawElement")||"childList"!==n.type||this._isBogusBrMutation(n)||o.add(t))}for(const i of t){const t=e.mapDomToView(i.target);if((!t||!t.is("uiElement")&&!t.is("rawElement"))&&"characterData"===i.type){const t=e.findCorrespondingViewText(i.target);t&&!o.has(t.parent)?n.add(t):!t&&$s(i.target)&&o.add(e.mapDomToView(i.target.parentNode))}}let i=!1;for(const t of n)i=!0,this.renderer.markToSync("text",t);for(const t of o){const n=e.mapViewToDom(t),o=Array.from(t.getChildren()),r=Array.from(e.domChildrenToView(n,{withChildren:!1}));Qa(o,r,tl)||(i=!0,this.renderer.markToSync("children",t))}i&&this.view.forceRender()}_isBogusBrMutation(t){let e=null;return null===t.nextSibling&&0===t.removedNodes.length&&1==t.addedNodes.length&&(e=this.domConverter.domToView(t.addedNodes[0],{withChildren:!1})),e&&e.is("element","br")}}function tl(t,e){if(!Array.isArray(t))return t===e||!(!t.is("$text")||!e.is("$text"))&&t.data===e.data}class el extends ga{constructor(t){super(t),this.mutationObserver=t.getObserver(Xa),this.selection=this.document.selection,this.domConverter=t.domConverter,this._documents=new WeakSet,this._fireSelectionChangeDoneDebounced=Ba((t=>{this.document.fire("selectionChangeDone",t)}),200),this._clearInfiniteLoopInterval=setInterval((()=>this._clearInfiniteLoop()),1e3),this._documentIsSelectingInactivityTimeoutDebounced=Ba((()=>this.document.isSelecting=!1),5e3),this._loopbackCounter=0}observe(t){const e=t.ownerDocument,n=()=>{this.document.isSelecting&&(this._handleSelectionChange(null,e),this.document.isSelecting=!1,this._documentIsSelectingInactivityTimeoutDebounced.cancel())};this.listenTo(t,"selectstart",(()=>{this.document.isSelecting=!0,this._documentIsSelectingInactivityTimeoutDebounced()}),{priority:"highest"}),this.listenTo(t,"keydown",n,{priority:"highest",useCapture:!0}),this.listenTo(t,"keyup",n,{priority:"highest",useCapture:!0}),this._documents.has(e)||(this.listenTo(e,"mouseup",n,{priority:"highest",useCapture:!0}),this.listenTo(e,"selectionchange",((t,n)=>{this.document.isComposing&&!i.isAndroid||(this._handleSelectionChange(n,e),this._documentIsSelectingInactivityTimeoutDebounced())})),this._documents.add(e))}destroy(){super.destroy(),clearInterval(this._clearInfiniteLoopInterval),this._fireSelectionChangeDoneDebounced.cancel(),this._documentIsSelectingInactivityTimeoutDebounced.cancel()}_handleSelectionChange(t,e){if(!this.isEnabled)return;const n=e.defaultView.getSelection();if(this.checkShouldIgnoreEventFromTarget(n.anchorNode))return;this.mutationObserver.flush();const o=this.domConverter.domSelectionToView(n);if(0!=o.rangeCount){if(this.view.hasDomSelection=!0,!(this.selection.isEqual(o)&&this.domConverter.isDomSelectionCorrect(n)||++this._loopbackCounter>60))if(this.selection.isSimilar(o))this.view.forceRender();else{const t={oldSelection:this.selection,newSelection:o,domSelection:n};this.document._isFocusChanging=!1,this.document.fire("selectionChange",t),this._fireSelectionChangeDoneDebounced(t)}}else this.view.hasDomSelection=!1}_clearInfiniteLoop(){this._loopbackCounter=0}}class nl extends fa{constructor(t){super(t),this.domEventType=["focus","blur"],this.useCapture=!0;const e=this.document;e.on("focus",(()=>{e.isFocused=!0,e._isFocusChanging=!0,this._renderTimeoutId=setTimeout((()=>{e._isFocusChanging=!1,t.change((()=>{}))}),50)})),e.on("blur",((n,o)=>{const i=e.selection.editableElement;null!==i&&i!==o.target||(e.isFocused=!1,t.change((()=>{})))}))}onDomEvent(t){this.fire(t.type,t)}destroy(){this._renderTimeoutId&&clearTimeout(this._renderTimeoutId),super.destroy()}}class ol extends fa{constructor(t){super(t),this.domEventType=["compositionstart","compositionupdate","compositionend"];const e=this.document;e.on("compositionstart",(()=>{e.isComposing=!0}),{priority:"low"}),e.on("compositionend",(()=>{e.isComposing=!1}),{priority:"low"})}onDomEvent(t){this.fire(t.type,t,{data:t.data})}}class il{constructor(t){this.files=function(t){const e=Array.from(t.files||[]),n=Array.from(t.items||[]);if(e.length)return e;return n.filter((t=>"file"===t.kind)).map((t=>t.getAsFile()))}(t),this._native=t}get types(){return this._native.types}getData(t){return this._native.getData(t)}setData(t,e){this._native.setData(t,e)}set effectAllowed(t){this._native.effectAllowed=t}get effectAllowed(){return this._native.effectAllowed}set dropEffect(t){this._native.dropEffect=t}get dropEffect(){return this._native.dropEffect}get isCanceled(){return"none"==this._native.dropEffect||!!this._native.mozUserCancelled}}class rl extends fa{constructor(t){super(t),this.domEventType=["beforeinput"]}onDomEvent(t){const e=t.getTargetRanges(),n=this.view,o=n.document;let r=null,s=null,a=[];if(t.dataTransfer&&(r=new il(t.dataTransfer)),null!==t.data?s=t.data:r&&(s=r.getData("text/plain")),o.selection.isFake)a=Array.from(o.selection.getRanges());else if(e.length)a=e.map((t=>n.domConverter.domRangeToView(t)));else if(i.isAndroid){const e=t.target.ownerDocument.defaultView.getSelection();a=Array.from(n.domConverter.domSelectionToView(e).getRanges())}if(i.isAndroid&&"insertCompositionText"==t.inputType&&s&&s.endsWith("\n"))this.fire(t.type,t,{inputType:"insertParagraph",targetRanges:[n.createRange(a[0].end)]});else if("insertText"==t.inputType&&s&&s.includes("\n")){const e=s.split(/\n{1,2}/g);let n=a;for(let i=0;i<e.length;i++){const s=e[i];""!=s&&(this.fire(t.type,t,{data:s,dataTransfer:r,targetRanges:n,inputType:t.inputType,isComposing:t.isComposing}),n=[o.selection.getFirstRange()]),i+1<e.length&&(this.fire(t.type,t,{inputType:"insertParagraph",targetRanges:n}),n=[o.selection.getFirstRange()])}}else this.fire(t.type,t,{data:s,dataTransfer:r,targetRanges:a,inputType:t.inputType,isComposing:t.isComposing})}}class sl extends ga{constructor(t){super(t),this.document.on("keydown",((t,e)=>{if(this.isEnabled&&((n=e.keyCode)==hi.arrowright||n==hi.arrowleft||n==hi.arrowup||n==hi.arrowdown)){const n=new us(this.document,"arrowKey",this.document.selection.getFirstRange());this.document.fire(n,e),n.stop.called&&t.stop()}var n}))}observe(){}}class al extends ga{constructor(t){super(t);const e=this.document;e.on("keydown",((t,n)=>{if(!this.isEnabled||n.keyCode!=hi.tab||n.ctrlKey)return;const o=new us(e,"tab",e.selection.getFirstRange());e.fire(o,n),o.stop.called&&t.stop()}))}observe(){}}class ll extends(q()){constructor(t){super(),this.document=new ws(t),this.domConverter=new ca(this.document),this.domRoots=new Map,this.set("isRenderingInProgress",!1),this.set("hasDomSelection",!1),this._renderer=new Qs(this.domConverter,this.document.selection),this._renderer.bind("isFocused","isSelecting","isComposing","_isFocusChanging").to(this.document,"isFocused","isSelecting","isComposing","_isFocusChanging"),this._initialDomRootAttributes=new WeakMap,this._observers=new Map,this._ongoingChange=!1,this._postFixersInProgress=!1,this._renderingDisabled=!1,this._hasChangedSinceTheLastRendering=!1,this._writer=new Is(this.document),this.addObserver(Xa),this.addObserver(el),this.addObserver(nl),this.addObserver(ba),this.addObserver(Ia),this.addObserver(ol),this.addObserver(sl),this.addObserver(rl),this.addObserver(al),this.document.on("arrowKey",Zs,{priority:"low"}),Es(this),this.on("render",(()=>{this._render(),this.document.fire("layoutChanged"),this._hasChangedSinceTheLastRendering=!1})),this.listenTo(this.document.selection,"change",(()=>{this._hasChangedSinceTheLastRendering=!0})),this.listenTo(this.document,"change:isFocused",(()=>{this._hasChangedSinceTheLastRendering=!0}))}attachDomRoot(t,e="main"){const n=this.document.getRoot(e);n._name=t.tagName.toLowerCase();const o={};for(const{name:e,value:i}of Array.from(t.attributes))o[e]=i,"class"===e?this._writer.addClass(i.split(" "),n):this._writer.setAttribute(e,i,n);this._initialDomRootAttributes.set(t,o);const i=()=>{this._writer.setAttribute("contenteditable",(!n.isReadOnly).toString(),n),n.isReadOnly?this._writer.addClass("ck-read-only",n):this._writer.removeClass("ck-read-only",n)};i(),this.domRoots.set(e,t),this.domConverter.bindElements(t,n),this._renderer.markToSync("children",n),this._renderer.markToSync("attributes",n),this._renderer.domDocuments.add(t.ownerDocument),n.on("change:children",((t,e)=>this._renderer.markToSync("children",e))),n.on("change:attributes",((t,e)=>this._renderer.markToSync("attributes",e))),n.on("change:text",((t,e)=>this._renderer.markToSync("text",e))),n.on("change:isReadOnly",(()=>this.change(i))),n.on("change",(()=>{this._hasChangedSinceTheLastRendering=!0}));for(const n of this._observers.values())n.observe(t,e)}detachDomRoot(t){const e=this.domRoots.get(t);Array.from(e.attributes).forEach((({name:t})=>e.removeAttribute(t)));const n=this._initialDomRootAttributes.get(e);for(const t in n)e.setAttribute(t,n[t]);this.domRoots.delete(t),this.domConverter.unbindDomElement(e)}getDomRoot(t="main"){return this.domRoots.get(t)}addObserver(t){let e=this._observers.get(t);if(e)return e;e=new t(this),this._observers.set(t,e);for(const[t,n]of this.domRoots)e.observe(n,t);return e.enable(),e}getObserver(t){return this._observers.get(t)}disableObservers(){for(const t of this._observers.values())t.disable()}enableObservers(){for(const t of this._observers.values())t.enable()}scrollToTheSelection(){const t=this.document.selection.getFirstRange();t&&Xo({target:this.domConverter.viewRangeToDom(t),viewportOffset:20})}focus(){if(!this.document.isFocused){const t=this.document.selection.editableElement;t&&(this.domConverter.focus(t),this.forceRender())}}change(t){if(this.isRenderingInProgress||this._postFixersInProgress)throw new b("cannot-change-view-tree",this);try{if(this._ongoingChange)return t(this._writer);this._ongoingChange=!0;const e=t(this._writer);return this._ongoingChange=!1,!this._renderingDisabled&&this._hasChangedSinceTheLastRendering&&(this._postFixersInProgress=!0,this.document._callPostFixers(this._writer),this._postFixersInProgress=!1,this.fire("render")),e}catch(t){b.rethrowUnexpectedError(t,this)}}forceRender(){this._hasChangedSinceTheLastRendering=!0,this.document._isFocusChanging=!1,this.change((()=>{}))}destroy(){for(const t of this._observers.values())t.destroy();this.document.destroy(),this.stopListening()}createPositionAt(t,e){return as._createAt(t,e)}createPositionAfter(t){return as._createAfter(t)}createPositionBefore(t){return as._createBefore(t)}createRange(...t){return new ls(...t)}createRangeOn(t){return ls._createOn(t)}createRangeIn(t){return ls._createIn(t)}createSelection(...t){return new ds(...t)}_disableRendering(t){this._renderingDisabled=t,0==t&&this.change((()=>{}))}_render(){this.isRenderingInProgress=!0,this.disableObservers(),this._renderer.render(),this.enableObservers(),this.isRenderingInProgress=!1}}class cl{is(){throw new Error("is() method is abstract")}}class dl extends cl{constructor(t){super(),this.parent=null,this._attrs=Ei(t)}get document(){return null}get index(){let t;if(!this.parent)return null;if(null===(t=this.parent.getChildIndex(this)))throw new b("model-node-not-found-in-parent",this);return t}get startOffset(){let t;if(!this.parent)return null;if(null===(t=this.parent.getChildStartOffset(this)))throw new b("model-node-not-found-in-parent",this);return t}get offsetSize(){return 1}get endOffset(){return this.parent?this.startOffset+this.offsetSize:null}get nextSibling(){const t=this.index;return null!==t&&this.parent.getChild(t+1)||null}get previousSibling(){const t=this.index;return null!==t&&this.parent.getChild(t-1)||null}get root(){let t=this;for(;t.parent;)t=t.parent;return t}isAttached(){return this.root.is("rootElement")}getPath(){const t=[];let e=this;for(;e.parent;)t.unshift(e.startOffset),e=e.parent;return t}getAncestors(t={}){const e=[];let n=t.includeSelf?this:this.parent;for(;n;)e[t.parentFirst?"push":"unshift"](n),n=n.parent;return e}getCommonAncestor(t,e={}){const n=this.getAncestors(e),o=t.getAncestors(e);let i=0;for(;n[i]==o[i]&&n[i];)i++;return 0===i?null:n[i-1]}isBefore(t){if(this==t)return!1;if(this.root!==t.root)return!1;const e=this.getPath(),n=t.getPath(),o=J(e,n);switch(o){case"prefix":return!0;case"extension":return!1;default:return e[o]<n[o]}}isAfter(t){return this!=t&&(this.root===t.root&&!this.isBefore(t))}hasAttribute(t){return this._attrs.has(t)}getAttribute(t){return this._attrs.get(t)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}toJSON(){const t={};return this._attrs.size&&(t.attributes=Array.from(this._attrs).reduce(((t,e)=>(t[e[0]]=e[1],t)),{})),t}_clone(t){return new dl(this._attrs)}_remove(){this.parent._removeChildren(this.index)}_setAttribute(t,e){this._attrs.set(t,e)}_setAttributesTo(t){this._attrs=Ei(t)}_removeAttribute(t){return this._attrs.delete(t)}_clearAttributes(){this._attrs.clear()}}dl.prototype.is=function(t){return"node"===t||"model:node"===t};class hl{constructor(t){this._nodes=[],t&&this._insertNodes(0,t)}[Symbol.iterator](){return this._nodes[Symbol.iterator]()}get length(){return this._nodes.length}get maxOffset(){return this._nodes.reduce(((t,e)=>t+e.offsetSize),0)}getNode(t){return this._nodes[t]||null}getNodeIndex(t){const e=this._nodes.indexOf(t);return-1==e?null:e}getNodeStartOffset(t){const e=this.getNodeIndex(t);return null===e?null:this._nodes.slice(0,e).reduce(((t,e)=>t+e.offsetSize),0)}indexToOffset(t){if(t==this._nodes.length)return this.maxOffset;const e=this._nodes[t];if(!e)throw new b("model-nodelist-index-out-of-bounds",this);return this.getNodeStartOffset(e)}offsetToIndex(t){let e=0;for(const n of this._nodes){if(t>=e&&t<e+n.offsetSize)return this.getNodeIndex(n);e+=n.offsetSize}if(e!=t)throw new b("model-nodelist-offset-out-of-bounds",this,{offset:t,nodeList:this});return this.length}_insertNodes(t,e){for(const t of e)if(!(t instanceof dl))throw new b("model-nodelist-insertnodes-not-node",this);this._nodes=function(t,e,n,o){if(Math.max(e.length,t.length)>1e4)return t.slice(0,n).concat(e).concat(t.slice(n+o,t.length));{const i=Array.from(t);return i.splice(n,o,...e),i}}(this._nodes,Array.from(e),t,0)}_removeNodes(t,e=1){return this._nodes.splice(t,e)}toJSON(){return this._nodes.map((t=>t.toJSON()))}}class ul extends dl{constructor(t,e){super(e),this._data=t||""}get offsetSize(){return this.data.length}get data(){return this._data}toJSON(){const t=super.toJSON();return t.data=this.data,t}_clone(){return new ul(this.data,this.getAttributes())}static fromJSON(t){return new ul(t.data,t.attributes)}}ul.prototype.is=function(t){return"$text"===t||"model:$text"===t||"text"===t||"model:text"===t||"node"===t||"model:node"===t};class gl extends cl{constructor(t,e,n){if(super(),this.textNode=t,e<0||e>t.offsetSize)throw new b("model-textproxy-wrong-offsetintext",this);if(n<0||e+n>t.offsetSize)throw new b("model-textproxy-wrong-length",this);this.data=t.data.substring(e,e+n),this.offsetInText=e}get startOffset(){return null!==this.textNode.startOffset?this.textNode.startOffset+this.offsetInText:null}get offsetSize(){return this.data.length}get endOffset(){return null!==this.startOffset?this.startOffset+this.offsetSize:null}get isPartial(){return this.offsetSize!==this.textNode.offsetSize}get parent(){return this.textNode.parent}get root(){return this.textNode.root}getPath(){const t=this.textNode.getPath();return t.length>0&&(t[t.length-1]+=this.offsetInText),t}getAncestors(t={}){const e=[];let n=t.includeSelf?this:this.parent;for(;n;)e[t.parentFirst?"push":"unshift"](n),n=n.parent;return e}hasAttribute(t){return this.textNode.hasAttribute(t)}getAttribute(t){return this.textNode.getAttribute(t)}getAttributes(){return this.textNode.getAttributes()}getAttributeKeys(){return this.textNode.getAttributeKeys()}}gl.prototype.is=function(t){return"$textProxy"===t||"model:$textProxy"===t||"textProxy"===t||"model:textProxy"===t};class ml extends dl{constructor(t,e,n){super(e),this.name=t,this._children=new hl,n&&this._insertChild(0,n)}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}getChild(t){return this._children.getNode(t)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(t){return this._children.getNodeIndex(t)}getChildStartOffset(t){return this._children.getNodeStartOffset(t)}offsetToIndex(t){return this._children.offsetToIndex(t)}getNodeByPath(t){let e=this;for(const n of t)e=e.getChild(e.offsetToIndex(n));return e}findAncestor(t,e={}){let n=e.includeSelf?this:this.parent;for(;n;){if(n.name===t)return n;n=n.parent}return null}toJSON(){const t=super.toJSON();if(t.name=this.name,this._children.length>0){t.children=[];for(const e of this._children)t.children.push(e.toJSON())}return t}_clone(t=!1){const e=t?Array.from(this._children).map((t=>t._clone(!0))):void 0;return new ml(this.name,this.getAttributes(),e)}_appendChild(t){this._insertChild(this.childCount,t)}_insertChild(t,e){const n=function(t){if("string"==typeof t)return[new ul(t)];Y(t)||(t=[t]);return Array.from(t).map((t=>"string"==typeof t?new ul(t):t instanceof gl?new ul(t.data,t.getAttributes()):t))}(e);for(const t of n)null!==t.parent&&t._remove(),t.parent=this;this._children._insertNodes(t,n)}_removeChildren(t,e=1){const n=this._children._removeNodes(t,e);for(const t of n)t.parent=null;return n}static fromJSON(t){let e;if(t.children){e=[];for(const n of t.children)n.name?e.push(ml.fromJSON(n)):e.push(ul.fromJSON(n))}return new ml(t.name,t.attributes,e)}}ml.prototype.is=function(t,e){return e?e===this.name&&("element"===t||"model:element"===t):"element"===t||"model:element"===t||"node"===t||"model:node"===t};class pl{constructor(t={}){if(!t.boundaries&&!t.startPosition)throw new b("model-tree-walker-no-start-position",null);const e=t.direction||"forward";if("forward"!=e&&"backward"!=e)throw new b("model-tree-walker-unknown-direction",t,{direction:e});this.direction=e,this.boundaries=t.boundaries||null,t.startPosition?this.position=t.startPosition.clone():this.position=bl._createAt(this.boundaries["backward"==this.direction?"end":"start"]),this.position.stickiness="toNone",this.singleCharacters=!!t.singleCharacters,this.shallow=!!t.shallow,this.ignoreElementEnd=!!t.ignoreElementEnd,this._boundaryStartParent=this.boundaries?this.boundaries.start.parent:null,this._boundaryEndParent=this.boundaries?this.boundaries.end.parent:null,this._visitedParent=this.position.parent}[Symbol.iterator](){return this}skip(t){let e,n,o,i;do{o=this.position,i=this._visitedParent,({done:e,value:n}=this.next())}while(!e&&t(n));e||(this.position=o,this._visitedParent=i)}next(){return"forward"==this.direction?this._next():this._previous()}_next(){const t=this.position,e=this.position.clone(),n=this._visitedParent;if(null===n.parent&&e.offset===n.maxOffset)return{done:!0,value:void 0};if(n===this._boundaryEndParent&&e.offset==this.boundaries.end.offset)return{done:!0,value:void 0};const o=kl(e,n),i=o||wl(e,n,o);if(i instanceof ml)return this.shallow?e.offset++:(e.path.push(0),this._visitedParent=i),this.position=e,fl("elementStart",i,t,e,1);if(i instanceof ul){let o;if(this.singleCharacters)o=1;else{let t=i.endOffset;this._boundaryEndParent==n&&this.boundaries.end.offset<t&&(t=this.boundaries.end.offset),o=t-e.offset}const r=e.offset-i.startOffset,s=new gl(i,r,o);return e.offset+=o,this.position=e,fl("text",s,t,e,o)}return e.path.pop(),e.offset++,this.position=e,this._visitedParent=n.parent,this.ignoreElementEnd?this._next():fl("elementEnd",n,t,e)}_previous(){const t=this.position,e=this.position.clone(),n=this._visitedParent;if(null===n.parent&&0===e.offset)return{done:!0,value:void 0};if(n==this._boundaryStartParent&&e.offset==this.boundaries.start.offset)return{done:!0,value:void 0};const o=e.parent,i=kl(e,o),r=i||_l(e,o,i);if(r instanceof ml)return e.offset--,this.shallow?(this.position=e,fl("elementStart",r,t,e,1)):(e.path.push(r.maxOffset),this.position=e,this._visitedParent=r,this.ignoreElementEnd?this._previous():fl("elementEnd",r,t,e));if(r instanceof ul){let o;if(this.singleCharacters)o=1;else{let t=r.startOffset;this._boundaryStartParent==n&&this.boundaries.start.offset>t&&(t=this.boundaries.start.offset),o=e.offset-t}const i=e.offset-r.startOffset,s=new gl(r,i-o,o);return e.offset-=o,this.position=e,fl("text",s,t,e,o)}return e.path.pop(),this.position=e,this._visitedParent=n.parent,fl("elementStart",n,t,e,1)}}function fl(t,e,n,o,i){return{done:!1,value:{type:t,item:e,previousPosition:n,nextPosition:o,length:i}}}class bl extends cl{constructor(t,e,n="toNone"){if(super(),!t.is("element")&&!t.is("documentFragment"))throw new b("model-position-root-invalid",t);if(!(e instanceof Array)||0===e.length)throw new b("model-position-path-incorrect-format",t,{path:e});t.is("rootElement")?e=e.slice():(e=[...t.getPath(),...e],t=t.root),this.root=t,this.path=e,this.stickiness=n}get offset(){return this.path[this.path.length-1]}set offset(t){this.path[this.path.length-1]=t}get parent(){let t=this.root;for(let e=0;e<this.path.length-1;e++)if(t=t.getChild(t.offsetToIndex(this.path[e])),!t)throw new b("model-position-path-incorrect",this,{position:this});if(t.is("$text"))throw new b("model-position-path-incorrect",this,{position:this});return t}get index(){return this.parent.offsetToIndex(this.offset)}get textNode(){return kl(this,this.parent)}get nodeAfter(){const t=this.parent;return wl(this,t,kl(this,t))}get nodeBefore(){const t=this.parent;return _l(this,t,kl(this,t))}get isAtStart(){return 0===this.offset}get isAtEnd(){return this.offset==this.parent.maxOffset}compareWith(t){if(this.root!=t.root)return"different";const e=J(this.path,t.path);switch(e){case"same":return"same";case"prefix":return"before";case"extension":return"after";default:return this.path[e]<t.path[e]?"before":"after"}}getLastMatchingPosition(t,e={}){e.startPosition=this;const n=new pl(e);return n.skip(t),n.position}getParentPath(){return this.path.slice(0,-1)}getAncestors(){const t=this.parent;return t.is("documentFragment")?[t]:t.getAncestors({includeSelf:!0})}findAncestor(t){const e=this.parent;return e.is("element")?e.findAncestor(t,{includeSelf:!0}):null}getCommonPath(t){if(this.root!=t.root)return[];const e=J(this.path,t.path),n="string"==typeof e?Math.min(this.path.length,t.path.length):e;return this.path.slice(0,n)}getCommonAncestor(t){const e=this.getAncestors(),n=t.getAncestors();let o=0;for(;e[o]==n[o]&&e[o];)o++;return 0===o?null:e[o-1]}getShiftedBy(t){const e=this.clone(),n=e.offset+t;return e.offset=n<0?0:n,e}isAfter(t){return"after"==this.compareWith(t)}isBefore(t){return"before"==this.compareWith(t)}isEqual(t){return"same"==this.compareWith(t)}isTouching(t){if(this.root!==t.root)return!1;const e=Math.min(this.path.length,t.path.length);for(let n=0;n<e;n++){const e=this.path[n]-t.path[n];if(e<-1||e>1)return!1;if(1===e)return Al(t,this,n);if(-1===e)return Al(this,t,n)}return this.path.length===t.path.length||(this.path.length>t.path.length?Cl(this.path,e):Cl(t.path,e))}hasSameParentAs(t){if(this.root!==t.root)return!1;return"same"==J(this.getParentPath(),t.getParentPath())}getTransformedByOperation(t){let e;switch(t.type){case"insert":e=this._getTransformedByInsertOperation(t);break;case"move":case"remove":case"reinsert":e=this._getTransformedByMoveOperation(t);break;case"split":e=this._getTransformedBySplitOperation(t);break;case"merge":e=this._getTransformedByMergeOperation(t);break;default:e=bl._createAt(this)}return e}_getTransformedByInsertOperation(t){return this._getTransformedByInsertion(t.position,t.howMany)}_getTransformedByMoveOperation(t){return this._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany)}_getTransformedBySplitOperation(t){const e=t.movedRange;return e.containsPosition(this)||e.start.isEqual(this)&&"toNext"==this.stickiness?this._getCombined(t.splitPosition,t.moveTargetPosition):t.graveyardPosition?this._getTransformedByMove(t.graveyardPosition,t.insertionPosition,1):this._getTransformedByInsertion(t.insertionPosition,1)}_getTransformedByMergeOperation(t){const e=t.movedRange;let n;return e.containsPosition(this)||e.start.isEqual(this)?(n=this._getCombined(t.sourcePosition,t.targetPosition),t.sourcePosition.isBefore(t.targetPosition)&&(n=n._getTransformedByDeletion(t.deletionPosition,1))):n=this.isEqual(t.deletionPosition)?bl._createAt(t.deletionPosition):this._getTransformedByMove(t.deletionPosition,t.graveyardPosition,1),n}_getTransformedByDeletion(t,e){const n=bl._createAt(this);if(this.root!=t.root)return n;if("same"==J(t.getParentPath(),this.getParentPath())){if(t.offset<this.offset){if(t.offset+e>this.offset)return null;n.offset-=e}}else if("prefix"==J(t.getParentPath(),this.getParentPath())){const o=t.path.length-1;if(t.offset<=this.path[o]){if(t.offset+e>this.path[o])return null;n.path[o]-=e}}return n}_getTransformedByInsertion(t,e){const n=bl._createAt(this);if(this.root!=t.root)return n;if("same"==J(t.getParentPath(),this.getParentPath()))(t.offset<this.offset||t.offset==this.offset&&"toPrevious"!=this.stickiness)&&(n.offset+=e);else if("prefix"==J(t.getParentPath(),this.getParentPath())){const o=t.path.length-1;t.offset<=this.path[o]&&(n.path[o]+=e)}return n}_getTransformedByMove(t,e,n){if(e=e._getTransformedByDeletion(t,n),t.isEqual(e))return bl._createAt(this);const o=this._getTransformedByDeletion(t,n);return null===o||t.isEqual(this)&&"toNext"==this.stickiness||t.getShiftedBy(n).isEqual(this)&&"toPrevious"==this.stickiness?this._getCombined(t,e):o._getTransformedByInsertion(e,n)}_getCombined(t,e){const n=t.path.length-1,o=bl._createAt(e);return o.stickiness=this.stickiness,o.offset=o.offset+this.path[n]-t.offset,o.path=[...o.path,...this.path.slice(n+1)],o}toJSON(){return{root:this.root.toJSON(),path:Array.from(this.path),stickiness:this.stickiness}}clone(){return new this.constructor(this.root,this.path,this.stickiness)}static _createAt(t,e,n="toNone"){if(t instanceof bl)return new bl(t.root,t.path,t.stickiness);{const o=t;if("end"==e)e=o.maxOffset;else{if("before"==e)return this._createBefore(o,n);if("after"==e)return this._createAfter(o,n);if(0!==e&&!e)throw new b("model-createpositionat-offset-required",[this,t])}if(!o.is("element")&&!o.is("documentFragment"))throw new b("model-position-parent-incorrect",[this,t]);const i=o.getPath();return i.push(e),new this(o.root,i,n)}}static _createAfter(t,e){if(!t.parent)throw new b("model-position-after-root",[this,t],{root:t});return this._createAt(t.parent,t.endOffset,e)}static _createBefore(t,e){if(!t.parent)throw new b("model-position-before-root",t,{root:t});return this._createAt(t.parent,t.startOffset,e)}static fromJSON(t,e){if("$graveyard"===t.root){const n=new bl(e.graveyard,t.path);return n.stickiness=t.stickiness,n}if(!e.getRoot(t.root))throw new b("model-position-fromjson-no-root",e,{rootName:t.root});return new bl(e.getRoot(t.root),t.path,t.stickiness)}}function kl(t,e){const n=e.getChild(e.offsetToIndex(t.offset));return n&&n.is("$text")&&n.startOffset<t.offset?n:null}function wl(t,e,n){return null!==n?null:e.getChild(e.offsetToIndex(t.offset))}function _l(t,e,n){return null!==n?null:e.getChild(e.offsetToIndex(t.offset)-1)}function Al(t,e,n){return n+1!==t.path.length&&(!!Cl(e.path,n+1)&&!!function(t,e){let n=t.parent,o=t.path.length-1,i=0;for(;o>=e;){if(t.path[o]+i!==n.maxOffset)return!1;i=1,o--,n=n.parent}return!0}(t,n+1))}function Cl(t,e){for(;e<t.length;){if(0!==t[e])return!1;e++}return!0}bl.prototype.is=function(t){return"position"===t||"model:position"===t};class vl extends cl{constructor(t,e){super(),this.start=bl._createAt(t),this.end=e?bl._createAt(e):bl._createAt(t),this.start.stickiness=this.isCollapsed?"toNone":"toNext",this.end.stickiness=this.isCollapsed?"toNone":"toPrevious"}*[Symbol.iterator](){yield*new pl({boundaries:this,ignoreElementEnd:!0})}get isCollapsed(){return this.start.isEqual(this.end)}get isFlat(){return"same"==J(this.start.getParentPath(),this.end.getParentPath())}get root(){return this.start.root}containsPosition(t){return t.isAfter(this.start)&&t.isBefore(this.end)}containsRange(t,e=!1){t.isCollapsed&&(e=!1);const n=this.containsPosition(t.start)||e&&this.start.isEqual(t.start),o=this.containsPosition(t.end)||e&&this.end.isEqual(t.end);return n&&o}containsItem(t){const e=bl._createBefore(t);return this.containsPosition(e)||this.start.isEqual(e)}isEqual(t){return this.start.isEqual(t.start)&&this.end.isEqual(t.end)}isIntersecting(t){return this.start.isBefore(t.end)&&this.end.isAfter(t.start)}getDifference(t){const e=[];return this.isIntersecting(t)?(this.containsPosition(t.start)&&e.push(new vl(this.start,t.start)),this.containsPosition(t.end)&&e.push(new vl(t.end,this.end))):e.push(new vl(this.start,this.end)),e}getIntersection(t){if(this.isIntersecting(t)){let e=this.start,n=this.end;return this.containsPosition(t.start)&&(e=t.start),this.containsPosition(t.end)&&(n=t.end),new vl(e,n)}return null}getJoined(t,e=!1){let n=this.isIntersecting(t);if(n||(n=this.start.isBefore(t.start)?e?this.end.isTouching(t.start):this.end.isEqual(t.start):e?t.end.isTouching(this.start):t.end.isEqual(this.start)),!n)return null;let o=this.start,i=this.end;return t.start.isBefore(o)&&(o=t.start),t.end.isAfter(i)&&(i=t.end),new vl(o,i)}getMinimalFlatRanges(){const t=[],e=this.start.getCommonPath(this.end).length,n=bl._createAt(this.start);let o=n.parent;for(;n.path.length>e+1;){const e=o.maxOffset-n.offset;0!==e&&t.push(new vl(n,n.getShiftedBy(e))),n.path=n.path.slice(0,-1),n.offset++,o=o.parent}for(;n.path.length<=this.end.path.length;){const e=this.end.path[n.path.length-1],o=e-n.offset;0!==o&&t.push(new vl(n,n.getShiftedBy(o))),n.offset=e,n.path.push(0)}return t}getWalker(t={}){return t.boundaries=this,new pl(t)}*getItems(t={}){t.boundaries=this,t.ignoreElementEnd=!0;const e=new pl(t);for(const t of e)yield t.item}*getPositions(t={}){t.boundaries=this;const e=new pl(t);yield e.position;for(const t of e)yield t.nextPosition}getTransformedByOperation(t){switch(t.type){case"insert":return this._getTransformedByInsertOperation(t);case"move":case"remove":case"reinsert":return this._getTransformedByMoveOperation(t);case"split":return[this._getTransformedBySplitOperation(t)];case"merge":return[this._getTransformedByMergeOperation(t)]}return[new vl(this.start,this.end)]}getTransformedByOperations(t){const e=[new vl(this.start,this.end)];for(const n of t)for(let t=0;t<e.length;t++){const o=e[t].getTransformedByOperation(n);e.splice(t,1,...o),t+=o.length-1}for(let t=0;t<e.length;t++){const n=e[t];for(let o=t+1;o<e.length;o++){const t=e[o];(n.containsRange(t)||t.containsRange(n)||n.isEqual(t))&&e.splice(o,1)}}return e}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}getContainedElement(){if(this.isCollapsed)return null;const t=this.start.nodeAfter,e=this.end.nodeBefore;return t&&t.is("element")&&t===e?t:null}toJSON(){return{start:this.start.toJSON(),end:this.end.toJSON()}}clone(){return new this.constructor(this.start,this.end)}_getTransformedByInsertOperation(t,e=!1){return this._getTransformedByInsertion(t.position,t.howMany,e)}_getTransformedByMoveOperation(t,e=!1){const n=t.sourcePosition,o=t.howMany,i=t.targetPosition;return this._getTransformedByMove(n,i,o,e)}_getTransformedBySplitOperation(t){const e=this.start._getTransformedBySplitOperation(t);let n=this.end._getTransformedBySplitOperation(t);return this.end.isEqual(t.insertionPosition)&&(n=this.end.getShiftedBy(1)),e.root!=n.root&&(n=this.end.getShiftedBy(-1)),new vl(e,n)}_getTransformedByMergeOperation(t){if(this.start.isEqual(t.targetPosition)&&this.end.isEqual(t.deletionPosition))return new vl(this.start);let e=this.start._getTransformedByMergeOperation(t),n=this.end._getTransformedByMergeOperation(t);return e.root!=n.root&&(n=this.end.getShiftedBy(-1)),e.isAfter(n)?(t.sourcePosition.isBefore(t.targetPosition)?(e=bl._createAt(n),e.offset=0):(t.deletionPosition.isEqual(e)||(n=t.deletionPosition),e=t.targetPosition),new vl(e,n)):new vl(e,n)}_getTransformedByInsertion(t,e,n=!1){if(n&&this.containsPosition(t))return[new vl(this.start,t),new vl(t.getShiftedBy(e),this.end._getTransformedByInsertion(t,e))];{const n=new vl(this.start,this.end);return n.start=n.start._getTransformedByInsertion(t,e),n.end=n.end._getTransformedByInsertion(t,e),[n]}}_getTransformedByMove(t,e,n,o=!1){if(this.isCollapsed){const o=this.start._getTransformedByMove(t,e,n);return[new vl(o)]}const i=vl._createFromPositionAndShift(t,n),r=e._getTransformedByDeletion(t,n);if(this.containsPosition(e)&&!o&&(i.containsPosition(this.start)||i.containsPosition(this.end))){const o=this.start._getTransformedByMove(t,e,n),i=this.end._getTransformedByMove(t,e,n);return[new vl(o,i)]}let s;const a=this.getDifference(i);let l=null;const c=this.getIntersection(i);if(1==a.length?l=new vl(a[0].start._getTransformedByDeletion(t,n),a[0].end._getTransformedByDeletion(t,n)):2==a.length&&(l=new vl(this.start,this.end._getTransformedByDeletion(t,n))),s=l?l._getTransformedByInsertion(r,n,null!==c||o):[],c){const t=new vl(c.start._getCombined(i.start,r),c.end._getCombined(i.start,r));2==s.length?s.splice(1,0,t):s.push(t)}return s}_getTransformedByDeletion(t,e){let n=this.start._getTransformedByDeletion(t,e),o=this.end._getTransformedByDeletion(t,e);return null==n&&null==o?null:(null==n&&(n=t),null==o&&(o=t),new vl(n,o))}static _createFromPositionAndShift(t,e){const n=t,o=t.getShiftedBy(e);return e>0?new this(n,o):new this(o,n)}static _createIn(t){return new this(bl._createAt(t,0),bl._createAt(t,t.maxOffset))}static _createOn(t){return this._createFromPositionAndShift(bl._createBefore(t),t.offsetSize)}static _createFromRanges(t){if(0===t.length)throw new b("range-create-from-ranges-empty-array",null);if(1==t.length)return t[0].clone();const e=t[0];t.sort(((t,e)=>t.start.isAfter(e.start)?1:-1));const n=t.indexOf(e),o=new this(e.start,e.end);if(n>0)for(let e=n-1;t[e].end.isEqual(o.start);e++)o.start=bl._createAt(t[e].start);for(let e=n+1;e<t.length&&t[e].start.isEqual(o.end);e++)o.end=bl._createAt(t[e].end);return o}static fromJSON(t,e){return new this(bl.fromJSON(t.start,e),bl.fromJSON(t.end,e))}}vl.prototype.is=function(t){return"range"===t||"model:range"===t};class yl extends(T()){constructor(){super(),this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._viewToModelLengthCallbacks=new Map,this._markerNameToElements=new Map,this._elementToMarkerNames=new Map,this._deferredBindingRemovals=new Map,this._unboundMarkerNames=new Set,this.on("modelToViewPosition",((t,e)=>{if(e.viewPosition)return;const n=this._modelToViewMapping.get(e.modelPosition.parent);if(!n)throw new b("mapping-model-position-view-parent-not-found",this,{modelPosition:e.modelPosition});e.viewPosition=this.findPositionIn(n,e.modelPosition.offset)}),{priority:"low"}),this.on("viewToModelPosition",((t,e)=>{if(e.modelPosition)return;const n=this.findMappedViewAncestor(e.viewPosition),o=this._viewToModelMapping.get(n),i=this._toModelOffset(e.viewPosition.parent,e.viewPosition.offset,n);e.modelPosition=bl._createAt(o,i)}),{priority:"low"})}bindElements(t,e){this._modelToViewMapping.set(t,e),this._viewToModelMapping.set(e,t)}unbindViewElement(t,e={}){const n=this.toModelElement(t);if(this._elementToMarkerNames.has(t))for(const e of this._elementToMarkerNames.get(t))this._unboundMarkerNames.add(e);e.defer?this._deferredBindingRemovals.set(t,t.root):(this._viewToModelMapping.delete(t),this._modelToViewMapping.get(n)==t&&this._modelToViewMapping.delete(n))}unbindModelElement(t){const e=this.toViewElement(t);this._modelToViewMapping.delete(t),this._viewToModelMapping.get(e)==t&&this._viewToModelMapping.delete(e)}bindElementToMarker(t,e){const n=this._markerNameToElements.get(e)||new Set;n.add(t);const o=this._elementToMarkerNames.get(t)||new Set;o.add(e),this._markerNameToElements.set(e,n),this._elementToMarkerNames.set(t,o)}unbindElementFromMarkerName(t,e){const n=this._markerNameToElements.get(e);n&&(n.delete(t),0==n.size&&this._markerNameToElements.delete(e));const o=this._elementToMarkerNames.get(t);o&&(o.delete(e),0==o.size&&this._elementToMarkerNames.delete(t))}flushUnboundMarkerNames(){const t=Array.from(this._unboundMarkerNames);return this._unboundMarkerNames.clear(),t}flushDeferredBindings(){for(const[t,e]of this._deferredBindingRemovals)t.root==e&&this.unbindViewElement(t);this._deferredBindingRemovals=new Map}clearBindings(){this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._markerNameToElements=new Map,this._elementToMarkerNames=new Map,this._unboundMarkerNames=new Set,this._deferredBindingRemovals=new Map}toModelElement(t){return this._viewToModelMapping.get(t)}toViewElement(t){return this._modelToViewMapping.get(t)}toModelRange(t){return new vl(this.toModelPosition(t.start),this.toModelPosition(t.end))}toViewRange(t){return new ls(this.toViewPosition(t.start),this.toViewPosition(t.end))}toModelPosition(t){const e={viewPosition:t,mapper:this};return this.fire("viewToModelPosition",e),e.modelPosition}toViewPosition(t,e={}){const n={modelPosition:t,mapper:this,isPhantom:e.isPhantom};return this.fire("modelToViewPosition",n),n.viewPosition}markerNameToElements(t){const e=this._markerNameToElements.get(t);if(!e)return null;const n=new Set;for(const t of e)if(t.is("attributeElement"))for(const e of t.getElementsWithSameId())n.add(e);else n.add(t);return n}registerViewToModelLength(t,e){this._viewToModelLengthCallbacks.set(t,e)}findMappedViewAncestor(t){let e=t.parent;for(;!this._viewToModelMapping.has(e);)e=e.parent;return e}_toModelOffset(t,e,n){if(n!=t){return this._toModelOffset(t.parent,t.index,n)+this._toModelOffset(t,e,t)}if(t.is("$text"))return e;let o=0;for(let n=0;n<e;n++)o+=this.getModelLength(t.getChild(n));return o}getModelLength(t){if(this._viewToModelLengthCallbacks.get(t.name)){return this._viewToModelLengthCallbacks.get(t.name)(t)}if(this._viewToModelMapping.has(t))return 1;if(t.is("$text"))return t.data.length;if(t.is("uiElement"))return 0;{let e=0;for(const n of t.getChildren())e+=this.getModelLength(n);return e}}findPositionIn(t,e){let n,o=0,i=0,r=0;if(t.is("$text"))return new as(t,e);for(;i<e;)n=t.getChild(r),o=this.getModelLength(n),i+=o,r++;return i==e?this._moveViewPositionToTextNode(new as(t,r)):this.findPositionIn(n,e-(i-o))}_moveViewPositionToTextNode(t){const e=t.nodeBefore,n=t.nodeAfter;return e instanceof Qi?new as(e,e.data.length):n instanceof Qi?new as(n,0):t}}class xl{constructor(){this._consumable=new Map,this._textProxyRegistry=new Map}add(t,e){e=El(e),t instanceof gl&&(t=this._getSymbolForTextProxy(t)),this._consumable.has(t)||this._consumable.set(t,new Map),this._consumable.get(t).set(e,!0)}consume(t,e){return e=El(e),t instanceof gl&&(t=this._getSymbolForTextProxy(t)),!!this.test(t,e)&&(this._consumable.get(t).set(e,!1),!0)}test(t,e){e=El(e),t instanceof gl&&(t=this._getSymbolForTextProxy(t));const n=this._consumable.get(t);if(void 0===n)return null;const o=n.get(e);return void 0===o?null:o}revert(t,e){e=El(e),t instanceof gl&&(t=this._getSymbolForTextProxy(t));const n=this.test(t,e);return!1===n?(this._consumable.get(t).set(e,!0),!0):!0!==n&&null}verifyAllConsumed(t){const e=[];for(const[n,o]of this._consumable)for(const[i,r]of o){const o=i.split(":")[0];r&&t==o&&e.push({event:i,item:n.name||n.description})}if(e.length)throw new b("conversion-model-consumable-not-consumed",null,{items:e})}_getSymbolForTextProxy(t){let e=null;const n=this._textProxyRegistry.get(t.startOffset);if(n){const o=n.get(t.endOffset);o&&(e=o.get(t.parent))}return e||(e=this._addSymbolForTextProxy(t)),e}_addSymbolForTextProxy(t){const e=t.startOffset,n=t.endOffset,o=t.parent,i=Symbol("$textProxy:"+t.data);let r,s;return r=this._textProxyRegistry.get(e),r||(r=new Map,this._textProxyRegistry.set(e,r)),s=r.get(n),s||(s=new Map,r.set(n,s)),s.set(o,i),i}}function El(t){const e=t.split(":");return"insert"==e[0]?e[0]:"addMarker"==e[0]||"removeMarker"==e[0]?t:e.length>1?e[0]+":"+e[1]:e[0]}class Tl extends(T()){constructor(t){super(),this._conversionApi={dispatcher:this,...t},this._firedEventsMap=new WeakMap}convertChanges(t,e,n){const o=this._createConversionApi(n,t.getRefreshedItems());for(const e of t.getMarkersToRemove())this._convertMarkerRemove(e.name,e.range,o);const i=this._reduceChanges(t.getChanges());for(const t of i)"insert"===t.type?this._convertInsert(vl._createFromPositionAndShift(t.position,t.length),o):"reinsert"===t.type?this._convertReinsert(vl._createFromPositionAndShift(t.position,t.length),o):"remove"===t.type?this._convertRemove(t.position,t.length,t.name,o):this._convertAttribute(t.range,t.attributeKey,t.attributeOldValue,t.attributeNewValue,o);for(const t of o.mapper.flushUnboundMarkerNames()){const n=e.get(t).getRange();this._convertMarkerRemove(t,n,o),this._convertMarkerAdd(t,n,o)}for(const e of t.getMarkersToAdd())this._convertMarkerAdd(e.name,e.range,o);o.mapper.flushDeferredBindings(),o.consumable.verifyAllConsumed("insert")}convert(t,e,n,o={}){const i=this._createConversionApi(n,void 0,o);this._convertInsert(t,i);for(const[t,n]of e)this._convertMarkerAdd(t,n,i);i.consumable.verifyAllConsumed("insert")}convertSelection(t,e,n){const o=Array.from(e.getMarkersAtPosition(t.getFirstPosition())),i=this._createConversionApi(n);if(this._addConsumablesForSelection(i.consumable,t,o),this.fire("selection",{selection:t},i),t.isCollapsed){for(const e of o){const n=e.getRange();if(!Dl(t.getFirstPosition(),e,i.mapper))continue;const o={item:t,markerName:e.name,markerRange:n};i.consumable.test(t,"addMarker:"+e.name)&&this.fire(`addMarker:${e.name}`,o,i)}for(const e of t.getAttributeKeys()){const n={item:t,range:t.getFirstRange(),attributeKey:e,attributeOldValue:null,attributeNewValue:t.getAttribute(e)};i.consumable.test(t,"attribute:"+n.attributeKey)&&this.fire(`attribute:${n.attributeKey}:$text`,n,i)}}}_convertInsert(t,e,n={}){n.doNotAddConsumables||this._addConsumablesForInsert(e.consumable,Array.from(t));for(const n of Array.from(t.getWalker({shallow:!0})).map(Sl))this._testAndFire("insert",n,e)}_convertRemove(t,e,n,o){this.fire(`remove:${n}`,{position:t,length:e},o)}_convertAttribute(t,e,n,o,i){this._addConsumablesForRange(i.consumable,t,`attribute:${e}`);for(const r of t){const t={item:r.item,range:vl._createFromPositionAndShift(r.previousPosition,r.length),attributeKey:e,attributeOldValue:n,attributeNewValue:o};this._testAndFire(`attribute:${e}`,t,i)}}_convertReinsert(t,e){const n=Array.from(t.getWalker({shallow:!0}));this._addConsumablesForInsert(e.consumable,n);for(const t of n.map(Sl))this._testAndFire("insert",{...t,reconversion:!0},e)}_convertMarkerAdd(t,e,n){if("$graveyard"==e.root.rootName)return;const o=`addMarker:${t}`;if(n.consumable.add(e,o),this.fire(o,{markerName:t,markerRange:e},n),n.consumable.consume(e,o)){this._addConsumablesForRange(n.consumable,e,o);for(const i of e.getItems()){if(!n.consumable.test(i,o))continue;const r={item:i,range:vl._createOn(i),markerName:t,markerRange:e};this.fire(o,r,n)}}}_convertMarkerRemove(t,e,n){"$graveyard"!=e.root.rootName&&this.fire(`removeMarker:${t}`,{markerName:t,markerRange:e},n)}_reduceChanges(t){const e={changes:t};return this.fire("reduceChanges",e),e.changes}_addConsumablesForInsert(t,e){for(const n of e){const e=n.item;if(null===t.test(e,"insert")){t.add(e,"insert");for(const n of e.getAttributeKeys())t.add(e,"attribute:"+n)}}return t}_addConsumablesForRange(t,e,n){for(const o of e.getItems())t.add(o,n);return t}_addConsumablesForSelection(t,e,n){t.add(e,"selection");for(const o of n)t.add(e,"addMarker:"+o.name);for(const n of e.getAttributeKeys())t.add(e,"attribute:"+n);return t}_testAndFire(t,e,n){const o=function(t,e){const n=e.item.is("element")?e.item.name:"$text";return`${t}:${n}`}(t,e),i=e.item.is("$textProxy")?n.consumable._getSymbolForTextProxy(e.item):e.item,r=this._firedEventsMap.get(n),s=r.get(i);if(s){if(s.has(o))return;s.add(o)}else r.set(i,new Set([o]));this.fire(o,e,n)}_testAndFireAddAttributes(t,e){const n={item:t,range:vl._createOn(t)};for(const t of n.item.getAttributeKeys())n.attributeKey=t,n.attributeOldValue=null,n.attributeNewValue=n.item.getAttribute(t),this._testAndFire(`attribute:${t}`,n,e)}_createConversionApi(t,e=new Set,n={}){const o={...this._conversionApi,consumable:new xl,writer:t,options:n,convertItem:t=>this._convertInsert(vl._createOn(t),o),convertChildren:t=>this._convertInsert(vl._createIn(t),o,{doNotAddConsumables:!0}),convertAttributes:t=>this._testAndFireAddAttributes(t,o),canReuseView:t=>!e.has(o.mapper.toModelElement(t))};return this._firedEventsMap.set(o,new Map),o}}function Dl(t,e,n){const o=e.getRange(),i=Array.from(t.getAncestors());i.shift(),i.reverse();return!i.some((t=>{if(o.containsItem(t)){return!!n.toViewElement(t).getCustomProperty("addHighlight")}}))}function Sl(t){return{item:t.item,range:vl._createFromPositionAndShift(t.previousPosition,t.length)}}class Bl extends(T(cl)){constructor(...t){super(),this._lastRangeBackward=!1,this._ranges=[],this._attrs=new Map,t.length&&this.setTo(...t)}get anchor(){if(this._ranges.length>0){const t=this._ranges[this._ranges.length-1];return this._lastRangeBackward?t.end:t.start}return null}get focus(){if(this._ranges.length>0){const t=this._ranges[this._ranges.length-1];return this._lastRangeBackward?t.start:t.end}return null}get isCollapsed(){return 1===this._ranges.length&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}isEqual(t){if(this.rangeCount!=t.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(t.anchor)||!this.focus.isEqual(t.focus))return!1;for(const e of this._ranges){let n=!1;for(const o of t._ranges)if(e.isEqual(o)){n=!0;break}if(!n)return!1}return!0}*getRanges(){for(const t of this._ranges)yield new vl(t.start,t.end)}getFirstRange(){let t=null;for(const e of this._ranges)t&&!e.start.isBefore(t.start)||(t=e);return t?new vl(t.start,t.end):null}getLastRange(){let t=null;for(const e of this._ranges)t&&!e.end.isAfter(t.end)||(t=e);return t?new vl(t.start,t.end):null}getFirstPosition(){const t=this.getFirstRange();return t?t.start.clone():null}getLastPosition(){const t=this.getLastRange();return t?t.end.clone():null}setTo(...t){let[e,n,o]=t;if("object"==typeof n&&(o=n,n=void 0),null===e)this._setRanges([]);else if(e instanceof Bl)this._setRanges(e.getRanges(),e.isBackward);else if(e&&"function"==typeof e.getRanges)this._setRanges(e.getRanges(),e.isBackward);else if(e instanceof vl)this._setRanges([e],!!o&&!!o.backward);else if(e instanceof bl)this._setRanges([new vl(e)]);else if(e instanceof dl){const t=!!o&&!!o.backward;let i;if("in"==n)i=vl._createIn(e);else if("on"==n)i=vl._createOn(e);else{if(void 0===n)throw new b("model-selection-setto-required-second-parameter",[this,e]);i=new vl(bl._createAt(e,n))}this._setRanges([i],t)}else{if(!Y(e))throw new b("model-selection-setto-not-selectable",[this,e]);this._setRanges(e,o&&!!o.backward)}}_setRanges(t,e=!1){const n=Array.from(t),o=n.some((e=>{if(!(e instanceof vl))throw new b("model-selection-set-ranges-not-range",[this,t]);return this._ranges.every((t=>!t.isEqual(e)))}));(n.length!==this._ranges.length||o)&&(this._replaceAllRanges(n),this._lastRangeBackward=!!e,this.fire("change:range",{directChange:!0}))}setFocus(t,e){if(null===this.anchor)throw new b("model-selection-setfocus-no-ranges",[this,t]);const n=bl._createAt(t,e);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.length&&this._popRange(),"before"==n.compareWith(o)?(this._pushRange(new vl(n,o)),this._lastRangeBackward=!0):(this._pushRange(new vl(o,n)),this._lastRangeBackward=!1),this.fire("change:range",{directChange:!0})}getAttribute(t){return this._attrs.get(t)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}hasAttribute(t){return this._attrs.has(t)}removeAttribute(t){this.hasAttribute(t)&&(this._attrs.delete(t),this.fire("change:attribute",{attributeKeys:[t],directChange:!0}))}setAttribute(t,e){this.getAttribute(t)!==e&&(this._attrs.set(t,e),this.fire("change:attribute",{attributeKeys:[t],directChange:!0}))}getSelectedElement(){return 1!==this.rangeCount?null:this.getFirstRange().getContainedElement()}*getSelectedBlocks(){const t=new WeakSet;for(const e of this.getRanges()){const n=Rl(e.start,t);n&&zl(n,e)&&(yield n);for(const n of e.getWalker()){const o=n.item;"elementEnd"==n.type&&Pl(o,t,e)&&(yield o)}const o=Rl(e.end,t);o&&!e.end.isTouching(bl._createAt(o,0))&&zl(o,e)&&(yield o)}}containsEntireContent(t=this.anchor.root){const e=bl._createAt(t,0),n=bl._createAt(t,"end");return e.isTouching(this.getFirstPosition())&&n.isTouching(this.getLastPosition())}_pushRange(t){this._checkRange(t),this._ranges.push(new vl(t.start,t.end))}_checkRange(t){for(let e=0;e<this._ranges.length;e++)if(t.isIntersecting(this._ranges[e]))throw new b("model-selection-range-intersects",[this,t],{addedRange:t,intersectingRange:this._ranges[e]})}_replaceAllRanges(t){this._removeAllRanges();for(const e of t)this._pushRange(e)}_removeAllRanges(){for(;this._ranges.length>0;)this._popRange()}_popRange(){this._ranges.pop()}}function Il(t,e){return!e.has(t)&&(e.add(t),t.root.document.model.schema.isBlock(t)&&!!t.parent)}function Pl(t,e,n){return Il(t,e)&&zl(t,n)}function Rl(t,e){const n=t.parent.root.document.model.schema,o=t.parent.getAncestors({parentFirst:!0,includeSelf:!0});let i=!1;const r=o.find((t=>!i&&(i=n.isLimit(t),!i&&Il(t,e))));return o.forEach((t=>e.add(t))),r}function zl(t,e){const n=function(t){const e=t.root.document.model.schema;let n=t.parent;for(;n;){if(e.isBlock(n))return n;n=n.parent}}(t);if(!n)return!0;return!e.containsRange(vl._createOn(n),!0)}Bl.prototype.is=function(t){return"selection"===t||"model:selection"===t};class Vl extends(T(vl)){constructor(t,e){super(t,e),Fl.call(this)}detach(){this.stopListening()}toRange(){return new vl(this.start,this.end)}static fromRange(t){return new Vl(t.start,t.end)}}function Fl(){this.listenTo(this.root.document.model,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&Ol.call(this,n)}),{priority:"low"})}function Ol(t){const e=this.getTransformedByOperation(t),n=vl._createFromRanges(e),o=!n.isEqual(this),i=function(t,e){switch(e.type){case"insert":return t.containsPosition(e.position);case"move":case"remove":case"reinsert":case"merge":return t.containsPosition(e.sourcePosition)||t.start.isEqual(e.sourcePosition)||t.containsPosition(e.targetPosition);case"split":return t.containsPosition(e.splitPosition)||t.containsPosition(e.insertionPosition)}return!1}(this,t);let r=null;if(o){"$graveyard"==n.root.rootName&&(r="remove"==t.type?t.sourcePosition:t.deletionPosition);const e=this.toRange();this.start=n.start,this.end=n.end,this.fire("change:range",e,{deletionPosition:r})}else i&&this.fire("change:content",this.toRange(),{deletionPosition:r})}Vl.prototype.is=function(t){return"liveRange"===t||"model:liveRange"===t||"range"==t||"model:range"===t};const Nl="selection:";class Ml extends(T(cl)){constructor(t){super(),this._selection=new Ll(t),this._selection.delegate("change:range").to(this),this._selection.delegate("change:attribute").to(this),this._selection.delegate("change:marker").to(this)}get isCollapsed(){return this._selection.isCollapsed}get anchor(){return this._selection.anchor}get focus(){return this._selection.focus}get rangeCount(){return this._selection.rangeCount}get hasOwnRange(){return this._selection.hasOwnRange}get isBackward(){return this._selection.isBackward}get isGravityOverridden(){return this._selection.isGravityOverridden}get markers(){return this._selection.markers}get _ranges(){return this._selection._ranges}getRanges(){return this._selection.getRanges()}getFirstPosition(){return this._selection.getFirstPosition()}getLastPosition(){return this._selection.getLastPosition()}getFirstRange(){return this._selection.getFirstRange()}getLastRange(){return this._selection.getLastRange()}getSelectedBlocks(){return this._selection.getSelectedBlocks()}getSelectedElement(){return this._selection.getSelectedElement()}containsEntireContent(t){return this._selection.containsEntireContent(t)}destroy(){this._selection.destroy()}getAttributeKeys(){return this._selection.getAttributeKeys()}getAttributes(){return this._selection.getAttributes()}getAttribute(t){return this._selection.getAttribute(t)}hasAttribute(t){return this._selection.hasAttribute(t)}refresh(){this._selection.updateMarkers(),this._selection._updateAttributes(!1)}observeMarkers(t){this._selection.observeMarkers(t)}_setFocus(t,e){this._selection.setFocus(t,e)}_setTo(...t){this._selection.setTo(...t)}_setAttribute(t,e){this._selection.setAttribute(t,e)}_removeAttribute(t){this._selection.removeAttribute(t)}_getStoredAttributes(){return this._selection.getStoredAttributes()}_overrideGravity(){return this._selection.overrideGravity()}_restoreGravity(t){this._selection.restoreGravity(t)}static _getStoreAttributeKey(t){return Nl+t}static _isStoreAttributeKey(t){return t.startsWith(Nl)}}Ml.prototype.is=function(t){return"selection"===t||"model:selection"==t||"documentSelection"==t||"model:documentSelection"==t};class Ll extends Bl{constructor(t){super(),this.markers=new Ci({idProperty:"name"}),this._model=t.model,this._document=t,this._attributePriority=new Map,this._selectionRestorePosition=null,this._hasChangedRange=!1,this._overriddenGravityRegister=new Set,this._observedMarkers=new Set,this.listenTo(this._model,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&"marker"!=n.type&&"rename"!=n.type&&"noop"!=n.type&&(0==this._ranges.length&&this._selectionRestorePosition&&this._fixGraveyardSelection(this._selectionRestorePosition),this._selectionRestorePosition=null,this._hasChangedRange&&(this._hasChangedRange=!1,this.fire("change:range",{directChange:!1})))}),{priority:"lowest"}),this.on("change:range",(()=>{this._validateSelectionRanges(this.getRanges())})),this.listenTo(this._model.markers,"update",((t,e,n,o)=>{this._updateMarker(e,o)})),this.listenTo(this._document,"change",((t,e)=>{!function(t,e){const n=t.document.differ;for(const o of n.getChanges()){if("insert"!=o.type)continue;const n=o.position.parent;o.length===n.maxOffset&&t.enqueueChange(e,(t=>{const e=Array.from(n.getAttributeKeys()).filter((t=>t.startsWith(Nl)));for(const o of e)t.removeAttribute(o,n)}))}}(this._model,e)}))}get isCollapsed(){return 0===this._ranges.length?this._document._getDefaultRange().isCollapsed:super.isCollapsed}get anchor(){return super.anchor||this._document._getDefaultRange().start}get focus(){return super.focus||this._document._getDefaultRange().end}get rangeCount(){return this._ranges.length?this._ranges.length:1}get hasOwnRange(){return this._ranges.length>0}get isGravityOverridden(){return!!this._overriddenGravityRegister.size}destroy(){for(let t=0;t<this._ranges.length;t++)this._ranges[t].detach();this.stopListening()}*getRanges(){this._ranges.length?yield*super.getRanges():yield this._document._getDefaultRange()}getFirstRange(){return super.getFirstRange()||this._document._getDefaultRange()}getLastRange(){return super.getLastRange()||this._document._getDefaultRange()}setTo(...t){super.setTo(...t),this._updateAttributes(!0),this.updateMarkers()}setFocus(t,e){super.setFocus(t,e),this._updateAttributes(!0),this.updateMarkers()}setAttribute(t,e){if(this._setAttribute(t,e)){const e=[t];this.fire("change:attribute",{attributeKeys:e,directChange:!0})}}removeAttribute(t){if(this._removeAttribute(t)){const e=[t];this.fire("change:attribute",{attributeKeys:e,directChange:!0})}}overrideGravity(){const t=m();return this._overriddenGravityRegister.add(t),1===this._overriddenGravityRegister.size&&this._updateAttributes(!0),t}restoreGravity(t){if(!this._overriddenGravityRegister.has(t))throw new b("document-selection-gravity-wrong-restore",this,{uid:t});this._overriddenGravityRegister.delete(t),this.isGravityOverridden||this._updateAttributes(!0)}observeMarkers(t){this._observedMarkers.add(t),this.updateMarkers()}_replaceAllRanges(t){this._validateSelectionRanges(t),super._replaceAllRanges(t)}_popRange(){this._ranges.pop().detach()}_pushRange(t){const e=this._prepareRange(t);e&&this._ranges.push(e)}_validateSelectionRanges(t){for(const e of t)if(!this._document._validateSelectionRange(e))throw new b("document-selection-wrong-position",this,{range:e})}_prepareRange(t){if(this._checkRange(t),t.root==this._document.graveyard)return;const e=Vl.fromRange(t);return e.on("change:range",((t,n,o)=>{if(this._hasChangedRange=!0,e.root==this._document.graveyard){this._selectionRestorePosition=o.deletionPosition;const t=this._ranges.indexOf(e);this._ranges.splice(t,1),e.detach()}})),e}updateMarkers(){if(!this._observedMarkers.size)return;const t=[];let e=!1;for(const e of this._model.markers){const n=e.name.split(":",1)[0];if(!this._observedMarkers.has(n))continue;const o=e.getRange();for(const n of this.getRanges())o.containsRange(n,!n.isCollapsed)&&t.push(e)}const n=Array.from(this.markers);for(const n of t)this.markers.has(n)||(this.markers.add(n),e=!0);for(const n of Array.from(this.markers))t.includes(n)||(this.markers.remove(n),e=!0);e&&this.fire("change:marker",{oldMarkers:n,directChange:!1})}_updateMarker(t,e){const n=t.name.split(":",1)[0];if(!this._observedMarkers.has(n))return;let o=!1;const i=Array.from(this.markers),r=this.markers.has(t);if(e){let n=!1;for(const t of this.getRanges())if(e.containsRange(t,!t.isCollapsed)){n=!0;break}n&&!r?(this.markers.add(t),o=!0):!n&&r&&(this.markers.remove(t),o=!0)}else r&&(this.markers.remove(t),o=!0);o&&this.fire("change:marker",{oldMarkers:i,directChange:!1})}_updateAttributes(t){const e=Ei(this._getSurroundingAttributes()),n=Ei(this.getAttributes());if(t)this._attributePriority=new Map,this._attrs=new Map;else for(const[t,e]of this._attributePriority)"low"==e&&(this._attrs.delete(t),this._attributePriority.delete(t));this._setAttributesTo(e);const o=[];for(const[t,e]of this.getAttributes())n.has(t)&&n.get(t)===e||o.push(t);for(const[t]of n)this.hasAttribute(t)||o.push(t);o.length>0&&this.fire("change:attribute",{attributeKeys:o,directChange:!1})}_setAttribute(t,e,n=!0){const o=n?"normal":"low";if("low"==o&&"normal"==this._attributePriority.get(t))return!1;return super.getAttribute(t)!==e&&(this._attrs.set(t,e),this._attributePriority.set(t,o),!0)}_removeAttribute(t,e=!0){const n=e?"normal":"low";return("low"!=n||"normal"!=this._attributePriority.get(t))&&(this._attributePriority.set(t,n),!!super.hasAttribute(t)&&(this._attrs.delete(t),!0))}_setAttributesTo(t){const e=new Set;for(const[e,n]of this.getAttributes())t.get(e)!==n&&this._removeAttribute(e,!1);for(const[n,o]of t){this._setAttribute(n,o,!1)&&e.add(n)}return e}*getStoredAttributes(){const t=this.getFirstPosition().parent;if(this.isCollapsed&&t.isEmpty)for(const e of t.getAttributeKeys())if(e.startsWith(Nl)){const n=e.substr(Nl.length);yield[n,t.getAttribute(e)]}}_getSurroundingAttributes(){const t=this.getFirstPosition(),e=this._model.schema;let n=null;if(this.isCollapsed){const o=t.textNode?t.textNode:t.nodeBefore,i=t.textNode?t.textNode:t.nodeAfter;if(this.isGravityOverridden||(n=Hl(o)),n||(n=Hl(i)),!this.isGravityOverridden&&!n){let t=o;for(;t&&!e.isInline(t)&&!n;)t=t.previousSibling,n=Hl(t)}if(!n){let t=i;for(;t&&!e.isInline(t)&&!n;)t=t.nextSibling,n=Hl(t)}n||(n=this.getStoredAttributes())}else{const t=this.getFirstRange();for(const o of t){if(o.item.is("element")&&e.isObject(o.item))break;if("text"==o.type){n=o.item.getAttributes();break}}}return n}_fixGraveyardSelection(t){const e=this._model.schema.getNearestSelectionRange(t);e&&this._pushRange(e)}}function Hl(t){return t instanceof gl||t instanceof ul?t.getAttributes():null}class 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b("conversion-attribute-to-attribute-on-text",n.dispatcher,e);if(null!==e.attributeOldValue&&o)if("class"==o.key){const t=bi(o.value);for(const e of t)a.removeClass(e,s)}else if("style"==o.key){const t=Object.keys(o.value);for(const e of t)a.removeStyle(e,s)}else a.removeAttribute(o.key,s);if(null!==e.attributeNewValue&&r)if("class"==r.key){const t=bi(r.value);for(const e of t)a.addClass(e,s)}else if("style"==r.key){const t=Object.keys(r.value);for(const e of t)a.setStyle(e,r.value[e],s)}else a.setAttribute(r.key,r.value,s)}),{priority:t.converterPriority||"normal"})}}(t))}markerToElement(t){return this.add(function(t){const e=Kl(t.view,"ui");return n=>{var o;n.on(`addMarker:${t.model}`,(o=e,(t,e,n)=>{e.isOpening=!0;const i=o(e,n);e.isOpening=!1;const r=o(e,n);if(!i||!r)return;const s=e.markerRange;if(s.isCollapsed&&!n.consumable.consume(s,t.name))return;for(const e of s)if(!n.consumable.consume(e.item,t.name))return;const 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Ml)r.wrap(a.getFirstRange(),s);else{const t=o.mapper.toViewRange(e.range),n=r.wrap(t,s);for(const t of n.getItems())if(t.is("attributeElement")&&t.isSimilar(s)){o.mapper.bindElementToMarker(t,e.markerName);break}}}),{priority:t.converterPriority||"normal"}),e.on(`addMarker:${t.model}`,function(t){return(e,n,o)=>{if(!n.item)return;if(!(n.item instanceof ml))return;const i=Yl(t,n,o);if(!i)return;if(!o.consumable.test(n.item,e.name))return;const r=o.mapper.toViewElement(n.item);if(r&&r.getCustomProperty("addHighlight")){o.consumable.consume(n.item,e.name);for(const t of vl._createIn(n.item))o.consumable.consume(t.item,e.name);r.getCustomProperty("addHighlight")(r,i,o.writer),o.mapper.bindElementToMarker(r,n.markerName)}}}(t.view),{priority:t.converterPriority||"normal"}),e.on(`removeMarker:${t.model}`,function(t){return(e,n,o)=>{if(n.markerRange.isCollapsed)return;const i=Yl(t,n,o);if(!i)return;const r=Ul(o.writer,i),s=o.mapper.markerNameToElements(n.markerName);if(s){for(const t of s)if(o.mapper.unbindElementFromMarkerName(t,n.markerName),t.is("attributeElement"))o.writer.unwrap(o.writer.createRangeOn(t),r);else{t.getCustomProperty("removeHighlight")(t,i.id,o.writer)}o.writer.clearClonedElementsGroup(n.markerName),e.stop()}}}(t.view),{priority:t.converterPriority||"normal"})}}(t))}markerToData(t){return this.add(function(t){const e=(t=Wl(t)).model;let n=t.view;n||(n=n=>({group:e,name:n.substr(t.model.length+1)}));return o=>{var i;o.on(`addMarker:${e}`,(i=n,(t,e,n)=>{const o=i(e.markerName,n);if(!o)return;const r=e.markerRange;n.consumable.consume(r,t.name)&&($l(r,!1,n,e,o),$l(r,!0,n,e,o),t.stop())}),{priority:t.converterPriority||"normal"}),o.on(`removeMarker:${e}`,function(t){return(e,n,o)=>{const i=t(n.markerName,o);if(!i)return;const r=o.mapper.markerNameToElements(n.markerName);if(r){for(const t of r)o.mapper.unbindElementFromMarkerName(t,n.markerName),t.is("containerElement")?(s(`data-${i.group}-start-before`,t),s(`data-${i.group}-start-after`,t),s(`data-${i.group}-end-before`,t),s(`data-${i.group}-end-after`,t)):o.writer.clear(o.writer.createRangeOn(t),t);o.writer.clearClonedElementsGroup(n.markerName),e.stop()}function s(t,e){if(e.hasAttribute(t)){const n=new Set(e.getAttribute(t).split(","));n.delete(i.name),0==n.size?o.writer.removeAttribute(t,e):o.writer.setAttribute(t,Array.from(n).join(","),e)}}}}(n),{priority:t.converterPriority||"normal"})}}(t))}}function Ul(t,e){const n=t.createAttributeElement("span",e.attributes);return e.classes&&n._addClass(e.classes),"number"==typeof e.priority&&(n._priority=e.priority),n._id=e.id,n}function $l(t,e,n,o,i){const r=e?t.start:t.end,s=r.nodeAfter&&r.nodeAfter.is("element")?r.nodeAfter:null,a=r.nodeBefore&&r.nodeBefore.is("element")?r.nodeBefore:null;if(s||a){let t,r;e&&s||!e&&!a?(t=s,r=!0):(t=a,r=!1);const l=n.mapper.toViewElement(t);if(l)return void function(t,e,n,o,i,r){const s=`data-${r.group}-${e?"start":"end"}-${n?"before":"after"}`,a=t.hasAttribute(s)?t.getAttribute(s).split(","):[];a.unshift(r.name),o.writer.setAttribute(s,a.join(","),t),o.mapper.bindElementToMarker(t,i.markerName)}(l,e,r,n,o,i)}!function(t,e,n,o,i){const r=`${i.group}-${e?"start":"end"}`,s=i.name?{name:i.name}:null,a=n.writer.createUIElement(r,s);n.writer.insert(t,a),n.mapper.bindElementToMarker(a,o.markerName)}(n.mapper.toViewPosition(r),e,n,o,i)}function Gl(t){return"string"==typeof t&&(t={name:t}),t.attributes?Array.isArray(t.attributes)||(t.attributes=[t.attributes]):t.attributes=[],t.children=!!t.children,t}function Kl(t,e){return"function"==typeof t?t:(n,o)=>function(t,e,n){"string"==typeof t&&(t={name:t});let o;const i=e.writer,r=Object.assign({},t.attributes);if("container"==n)o=i.createContainerElement(t.name,r);else if("attribute"==n){const e={priority:t.priority||_s.DEFAULT_PRIORITY};o=i.createAttributeElement(t.name,r,e)}else o=i.createUIElement(t.name,r);if(t.styles){const e=Object.keys(t.styles);for(const n of e)i.setStyle(n,t.styles[n],o)}if(t.classes){const e=t.classes;if("string"==typeof e)i.addClass(e,o);else for(const t of e)i.addClass(t,o)}return o}(t,o,e)}function Zl(t){return t.model.values?(e,n,o)=>{const i=t.view[e];return i?i(e,n,o):null}:t.view}function Jl(t){return"string"==typeof t?e=>({key:t,value:e}):"object"==typeof t?t.value?()=>t:e=>({key:t.key,value:e}):t}function Yl(t,e,n){const o="function"==typeof t?t(e,n):t;return o?(o.priority||(o.priority=10),o.id||(o.id=e.markerName),o):null}function Ql(t){const e=function(t){return(e,n)=>{if(!e.is("element",t.name))return!1;if("attribute"==n.type){if(t.attributes.includes(n.attributeKey))return!0}else if(t.children)return!0;return!1}}(t);return(t,n)=>{const o=[];n.reconvertedElements||(n.reconvertedElements=new Set);for(const t of n.changes){const i="attribute"==t.type?t.range.start.nodeAfter:t.position.parent;if(i&&e(i,t)){if(!n.reconvertedElements.has(i)){n.reconvertedElements.add(i);const t=bl._createBefore(i);o.push({type:"remove",name:i.name,position:t,length:1},{type:"reinsert",name:i.name,position:t,length:1})}}else o.push(t)}n.changes=o}}function Xl(t){return(e,n,o={})=>{const i=["insert"];for(const n of t.attributes)e.hasAttribute(n)&&i.push(`attribute:${n}`);return!!i.every((t=>n.test(e,t)))&&(o.preflight||i.forEach((t=>n.consume(e,t))),!0)}}function tc(t,e,n,o){for(const i of e)ec(t.root,i,n,o)||n.convertItem(i)}function ec(t,e,n,o){const{writer:i,mapper:r}=n;if(!o.reconversion)return!1;const s=r.toViewElement(e);return!(!s||s.root==t)&&(!!n.canReuseView(s)&&(i.move(i.createRangeOn(s),r.toViewPosition(bl._createBefore(e))),!0))}function nc(t,e,{preflight:n}={}){return n?e.test(t,"insert"):e.consume(t,"insert")}function oc(t){const{schema:e,document:n}=t.model;for(const o of n.getRootNames()){const i=n.getRoot(o);if(i.isEmpty&&!e.checkChild(i,"$text")&&e.checkChild(i,"paragraph"))return t.insertElement("paragraph",i),!0}return!1}function ic(t,e,n){const o=n.createContext(t);return!!n.checkChild(o,"paragraph")&&!!n.checkChild(o.push("paragraph"),e)}function rc(t,e){const n=e.createElement("paragraph");return e.insert(n,t),e.createPositionAt(n,0)}class sc extends ql{elementToElement(t){return this.add(ac(t))}elementToAttribute(t){return this.add(function(t){dc(t=Wl(t));const e=hc(t,!1),n=lc(t.view),o=n?`element:${n}`:"element";return n=>{n.on(o,e,{priority:t.converterPriority||"low"})}}(t))}attributeToAttribute(t){return this.add(function(t){t=Wl(t);let e=null;("string"==typeof t.view||t.view.key)&&(e=function(t){"string"==typeof t.view&&(t.view={key:t.view});const e=t.view.key;let n;if("class"==e||"style"==e){n={["class"==e?"classes":"styles"]:t.view.value}}else{n={attributes:{[e]:void 0===t.view.value?/[\s\S]*/:t.view.value}}}t.view.name&&(n.name=t.view.name);return t.view=n,e}(t));dc(t,e);const n=hc(t,!0);return e=>{e.on("element",n,{priority:t.converterPriority||"low"})}}(t))}elementToMarker(t){return this.add(function(t){const e=function(t){return(e,n)=>{const o="string"==typeof t?t:t(e,n);return n.writer.createElement("$marker",{"data-name":o})}}(t.model);return ac({...t,model:e})}(t))}dataToMarker(t){return this.add(function(t){(t=Wl(t)).model||(t.model=e=>e?t.view+":"+e:t.view);const e={view:t.view,model:t.model},n=cc(uc(e,"start")),o=cc(uc(e,"end"));return i=>{i.on(`element:${t.view}-start`,n,{priority:t.converterPriority||"normal"}),i.on(`element:${t.view}-end`,o,{priority:t.converterPriority||"normal"});const r=p.get("low"),s=p.get("highest"),a=p.get(t.converterPriority)/s;i.on("element",function(t){return(e,n,o)=>{const i=`data-${t.view}`;function r(e,i){for(const r of i){const i=t.model(r,o),s=o.writer.createElement("$marker",{"data-name":i});o.writer.insert(s,e),n.modelCursor.isEqual(e)?n.modelCursor=n.modelCursor.getShiftedBy(1):n.modelCursor=n.modelCursor._getTransformedByInsertion(e,1),n.modelRange=n.modelRange._getTransformedByInsertion(e,1)[0]}}(o.consumable.test(n.viewItem,{attributes:i+"-end-after"})||o.consumable.test(n.viewItem,{attributes:i+"-start-after"})||o.consumable.test(n.viewItem,{attributes:i+"-end-before"})||o.consumable.test(n.viewItem,{attributes:i+"-start-before"}))&&(n.modelRange||Object.assign(n,o.convertChildren(n.viewItem,n.modelCursor)),o.consumable.consume(n.viewItem,{attributes:i+"-end-after"})&&r(n.modelRange.end,n.viewItem.getAttribute(i+"-end-after").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-start-after"})&&r(n.modelRange.end,n.viewItem.getAttribute(i+"-start-after").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-end-before"})&&r(n.modelRange.start,n.viewItem.getAttribute(i+"-end-before").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-start-before"})&&r(n.modelRange.start,n.viewItem.getAttribute(i+"-start-before").split(",")))}}(e),{priority:r+a})}}(t))}}function ac(t){const e=cc(t=Wl(t)),n=lc(t.view),o=n?`element:${n}`:"element";return n=>{n.on(o,e,{priority:t.converterPriority||"normal"})}}function lc(t){return"string"==typeof t?t:"object"==typeof t&&"string"==typeof t.name?t.name:null}function cc(t){const e=new tr(t.view);return(n,o,i)=>{const r=e.match(o.viewItem);if(!r)return;const s=r.match;if(s.name=!0,!i.consumable.test(o.viewItem,s))return;const a=function(t,e,n){return t instanceof Function?t(e,n):n.writer.createElement(t)}(t.model,o.viewItem,i);a&&i.safeInsert(a,o.modelCursor)&&(i.consumable.consume(o.viewItem,s),i.convertChildren(o.viewItem,a),i.updateConversionResult(a,o))}}function dc(t,e=null){const n=null===e||(t=>t.getAttribute(e)),o="object"!=typeof t.model?t.model:t.model.key,i="object"!=typeof t.model||void 0===t.model.value?n:t.model.value;t.model={key:o,value:i}}function hc(t,e){const n=new tr(t.view);return(o,i,r)=>{if(!i.modelRange&&e)return;const s=n.match(i.viewItem);if(!s)return;if(!function(t,e){const n="function"==typeof t?t(e):t;if("object"==typeof n&&!lc(n))return!1;return!n.classes&&!n.attributes&&!n.styles}(t.view,i.viewItem)?delete s.match.name:s.match.name=!0,!r.consumable.test(i.viewItem,s.match))return;const a=t.model.key,l="function"==typeof t.model.value?t.model.value(i.viewItem,r):t.model.value;if(null===l)return;i.modelRange||Object.assign(i,r.convertChildren(i.viewItem,i.modelCursor));const c=function(t,e,n,o){let i=!1;for(const r of Array.from(t.getItems({shallow:n})))o.schema.checkAttribute(r,e.key)&&(i=!0,r.hasAttribute(e.key)||o.writer.setAttribute(e.key,e.value,r));return i}(i.modelRange,{key:a,value:l},e,r);c&&(r.consumable.test(i.viewItem,{name:!0})&&(s.match.name=!0),r.consumable.consume(i.viewItem,s.match))}}function uc(t,e){return{view:`${t.view}-${e}`,model:(e,n)=>{const o=e.getAttribute("name"),i=t.model(o,n);return n.writer.createElement("$marker",{"data-name":i})}}}class gc extends(q()){constructor(t,e){super(),this.model=t,this.view=new ll(e),this.mapper=new yl,this.downcastDispatcher=new Tl({mapper:this.mapper,schema:t.schema});const n=this.model.document,o=n.selection,i=this.model.markers;this.listenTo(this.model,"_beforeChanges",(()=>{this.view._disableRendering(!0)}),{priority:"highest"}),this.listenTo(this.model,"_afterChanges",(()=>{this.view._disableRendering(!1)}),{priority:"lowest"}),this.listenTo(n,"change",(()=>{this.view.change((t=>{this.downcastDispatcher.convertChanges(n.differ,i,t),this.downcastDispatcher.convertSelection(o,i,t)}))}),{priority:"low"}),this.listenTo(this.view.document,"selectionChange",function(t,e){return(n,o)=>{const i=o.newSelection,r=[];for(const t of i.getRanges())r.push(e.toModelRange(t));const s=t.createSelection(r,{backward:i.isBackward});s.isEqual(t.document.selection)||t.change((t=>{t.setSelection(s)}))}}(this.model,this.mapper)),this.downcastDispatcher.on("insert:$text",((t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewPosition(e.range.start),r=o.createText(e.item.data);o.insert(i,r)}),{priority:"lowest"}),this.downcastDispatcher.on("insert",((t,e,n)=>{n.convertAttributes(e.item),e.reconversion||!e.item.is("element")||e.item.isEmpty||n.convertChildren(e.item)}),{priority:"lowest"}),this.downcastDispatcher.on("remove",((t,e,n)=>{const o=n.mapper.toViewPosition(e.position),i=e.position.getShiftedBy(e.length),r=n.mapper.toViewPosition(i,{isPhantom:!0}),s=n.writer.createRange(o,r),a=n.writer.remove(s.getTrimmed());for(const t of n.writer.createRangeIn(a).getItems())n.mapper.unbindViewElement(t,{defer:!0})}),{priority:"low"}),this.downcastDispatcher.on("selection",((t,e,n)=>{const o=n.writer,i=o.document.selection;for(const t of i.getRanges())t.isCollapsed&&t.end.parent.isAttached()&&n.writer.mergeAttributes(t.start);o.setSelection(null)}),{priority:"high"}),this.downcastDispatcher.on("selection",((t,e,n)=>{const o=e.selection;if(o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=[];for(const t of o.getRanges())i.push(n.mapper.toViewRange(t));n.writer.setSelection(i,{backward:o.isBackward})}),{priority:"low"}),this.downcastDispatcher.on("selection",((t,e,n)=>{const o=e.selection;if(!o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=n.writer,r=o.getFirstPosition(),s=n.mapper.toViewPosition(r),a=i.breakAttributes(s);i.setSelection(a)}),{priority:"low"}),this.view.document.roots.bindTo(this.model.document.roots).using((t=>{if("$graveyard"==t.rootName)return null;const e=new rs(this.view.document,t.name);return e.rootName=t.rootName,this.mapper.bindElements(t,e),e}))}destroy(){this.view.destroy(),this.stopListening()}reconvertMarker(t){const e="string"==typeof t?t:t.name,n=this.model.markers.get(e);if(!n)throw new b("editingcontroller-reconvertmarker-marker-not-exist",this,{markerName:e});this.model.change((()=>{this.model.markers._refresh(n)}))}reconvertItem(t){this.model.change((()=>{this.model.document.differ._refreshItem(t)}))}}class mc{constructor(){this._consumables=new Map}add(t,e){let n;t.is("$text")||t.is("documentFragment")?this._consumables.set(t,!0):(this._consumables.has(t)?n=this._consumables.get(t):(n=new fc(t),this._consumables.set(t,n)),n.add(e))}test(t,e){const n=this._consumables.get(t);return void 0===n?null:t.is("$text")||t.is("documentFragment")?n:n.test(e)}consume(t,e){return!!this.test(t,e)&&(t.is("$text")||t.is("documentFragment")?this._consumables.set(t,!1):this._consumables.get(t).consume(e),!0)}revert(t,e){const n=this._consumables.get(t);void 0!==n&&(t.is("$text")||t.is("documentFragment")?this._consumables.set(t,!0):n.revert(e))}static consumablesFromElement(t){const e={element:t,name:!0,attributes:[],classes:[],styles:[]},n=t.getAttributeKeys();for(const t of n)"style"!=t&&"class"!=t&&e.attributes.push(t);const o=t.getClassNames();for(const t of o)e.classes.push(t);const i=t.getStyleNames();for(const t of i)e.styles.push(t);return e}static createFrom(t,e){if(e||(e=new mc),t.is("$text"))return e.add(t),e;t.is("element")&&e.add(t,mc.consumablesFromElement(t)),t.is("documentFragment")&&e.add(t);for(const n of t.getChildren())e=mc.createFrom(n,e);return e}}const pc=["attributes","classes","styles"];class fc{constructor(t){this.element=t,this._canConsumeName=null,this._consumables={attributes:new Map,styles:new Map,classes:new Map}}add(t){t.name&&(this._canConsumeName=!0);for(const e of pc)e in t&&this._add(e,t[e])}test(t){if(t.name&&!this._canConsumeName)return this._canConsumeName;for(const e of pc)if(e in t){const n=this._test(e,t[e]);if(!0!==n)return n}return!0}consume(t){t.name&&(this._canConsumeName=!1);for(const e of pc)e in t&&this._consume(e,t[e])}revert(t){t.name&&(this._canConsumeName=!0);for(const e of pc)e in t&&this._revert(e,t[e])}_add(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n){if("attributes"===t&&("class"===e||"style"===e))throw new b("viewconsumable-invalid-attribute",this);if(o.set(e,!0),"styles"===t)for(const t of this.element.document.stylesProcessor.getRelatedStyles(e))o.set(t,!0)}}_test(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){const t=o.get(e);if(void 0===t)return null;if(!t)return!1}else{const t="class"==e?"classes":"styles",n=this._test(t,[...this._consumables[t].keys()]);if(!0!==n)return n}return!0}_consume(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){if(o.set(e,!1),"styles"==t)for(const t of this.element.document.stylesProcessor.getRelatedStyles(e))o.set(t,!1)}else{const t="class"==e?"classes":"styles";this._consume(t,[...this._consumables[t].keys()])}}_revert(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){!1===o.get(e)&&o.set(e,!0)}else{const t="class"==e?"classes":"styles";this._revert(t,[...this._consumables[t].keys()])}}}class bc extends(q()){constructor(){super(),this._sourceDefinitions={},this._attributeProperties={},this.decorate("checkChild"),this.decorate("checkAttribute"),this.on("checkAttribute",((t,e)=>{e[0]=new kc(e[0])}),{priority:"highest"}),this.on("checkChild",((t,e)=>{e[0]=new kc(e[0]),e[1]=this.getDefinition(e[1])}),{priority:"highest"})}register(t,e){if(this._sourceDefinitions[t])throw new b("schema-cannot-register-item-twice",this,{itemName:t});this._sourceDefinitions[t]=[Object.assign({},e)],this._clearCache()}extend(t,e){if(!this._sourceDefinitions[t])throw new b("schema-cannot-extend-missing-item",this,{itemName:t});this._sourceDefinitions[t].push(Object.assign({},e)),this._clearCache()}getDefinitions(){return this._compiledDefinitions||this._compile(),this._compiledDefinitions}getDefinition(t){let e;return e="string"==typeof t?t:"is"in t&&(t.is("$text")||t.is("$textProxy"))?"$text":t.name,this.getDefinitions()[e]}isRegistered(t){return!!this.getDefinition(t)}isBlock(t){const e=this.getDefinition(t);return!(!e||!e.isBlock)}isLimit(t){const e=this.getDefinition(t);return!!e&&!(!e.isLimit&&!e.isObject)}isObject(t){const e=this.getDefinition(t);return!!e&&!!(e.isObject||e.isLimit&&e.isSelectable&&e.isContent)}isInline(t){const e=this.getDefinition(t);return!(!e||!e.isInline)}isSelectable(t){const e=this.getDefinition(t);return!!e&&!(!e.isSelectable&&!e.isObject)}isContent(t){const e=this.getDefinition(t);return!!e&&!(!e.isContent&&!e.isObject)}checkChild(t,e){return!!e&&this._checkContextMatch(e,t)}checkAttribute(t,e){const n=this.getDefinition(t.last);return!!n&&n.allowAttributes.includes(e)}checkMerge(t,e){if(t instanceof bl){const e=t.nodeBefore,n=t.nodeAfter;if(!(e instanceof ml))throw new b("schema-check-merge-no-element-before",this);if(!(n instanceof ml))throw new b("schema-check-merge-no-element-after",this);return this.checkMerge(e,n)}for(const n of e.getChildren())if(!this.checkChild(t,n))return!1;return!0}addChildCheck(t){this.on("checkChild",((e,[n,o])=>{if(!o)return;const i=t(n,o);"boolean"==typeof i&&(e.stop(),e.return=i)}),{priority:"high"})}addAttributeCheck(t){this.on("checkAttribute",((e,[n,o])=>{const i=t(n,o);"boolean"==typeof i&&(e.stop(),e.return=i)}),{priority:"high"})}setAttributeProperties(t,e){this._attributeProperties[t]=Object.assign(this.getAttributeProperties(t),e)}getAttributeProperties(t){return this._attributeProperties[t]||{}}getLimitElement(t){let e;if(t instanceof bl)e=t.parent;else{e=(t instanceof vl?[t]:Array.from(t.getRanges())).reduce(((t,e)=>{const n=e.getCommonAncestor();return t?t.getCommonAncestor(n,{includeSelf:!0}):n}),null)}for(;!this.isLimit(e)&&e.parent;)e=e.parent;return e}checkAttributeInSelection(t,e){if(t.isCollapsed){const n=[...t.getFirstPosition().getAncestors(),new ul("",t.getAttributes())];return this.checkAttribute(n,e)}{const n=t.getRanges();for(const t of n)for(const n of t)if(this.checkAttribute(n.item,e))return!0}return!1}*getValidRanges(t,e){t=function*(t){for(const e of t)yield*e.getMinimalFlatRanges()}(t);for(const n of t)yield*this._getValidRangesForRange(n,e)}getNearestSelectionRange(t,e="both"){if(this.checkChild(t,"$text"))return new vl(t);let n,o;const i=t.getAncestors().reverse().find((t=>this.isLimit(t)))||t.root;"both"!=e&&"backward"!=e||(n=new pl({boundaries:vl._createIn(i),startPosition:t,direction:"backward"})),"both"!=e&&"forward"!=e||(o=new pl({boundaries:vl._createIn(i),startPosition:t}));for(const t of function*(t,e){let n=!1;for(;!n;){if(n=!0,t){const e=t.next();e.done||(n=!1,yield{walker:t,value:e.value})}if(e){const t=e.next();t.done||(n=!1,yield{walker:e,value:t.value})}}}(n,o)){const e=t.walker==n?"elementEnd":"elementStart",o=t.value;if(o.type==e&&this.isObject(o.item))return vl._createOn(o.item);if(this.checkChild(o.nextPosition,"$text"))return new vl(o.nextPosition)}return null}findAllowedParent(t,e){let n=t.parent;for(;n;){if(this.checkChild(n,e))return n;if(this.isLimit(n))return null;n=n.parent}return null}setAllowedAttributes(t,e,n){const o=n.model;for(const[i,r]of Object.entries(e))o.schema.checkAttribute(t,i)&&n.setAttribute(i,r,t)}removeDisallowedAttributes(t,e){for(const n of t)if(n.is("$text"))Ic(this,n,e);else{const t=vl._createIn(n).getPositions();for(const n of t){Ic(this,n.nodeBefore||n.parent,e)}}}getAttributesWithProperty(t,e,n){const o={};for(const[i,r]of t.getAttributes()){const t=this.getAttributeProperties(i);void 0!==t[e]&&(void 0!==n&&n!==t[e]||(o[i]=r))}return o}createContext(t){return new kc(t)}_clearCache(){this._compiledDefinitions=null}_compile(){const t={},e=this._sourceDefinitions,n=Object.keys(e);for(const o of n)t[o]=wc(e[o],o);for(const e of n)_c(t,e);for(const e of n)Ac(t,e);for(const e of n)Cc(t,e);for(const e of n)vc(t,e),yc(t,e);for(const e of n)xc(t,e),Ec(t,e),Tc(t,e);this._compiledDefinitions=t}_checkContextMatch(t,e,n=e.length-1){const o=e.getItem(n);if(t.allowIn.includes(o.name)){if(0==n)return!0;{const t=this.getDefinition(o);return this._checkContextMatch(t,e,n-1)}}return!1}*_getValidRangesForRange(t,e){let n=t.start,o=t.start;for(const i of t.getItems({shallow:!0}))i.is("element")&&(yield*this._getValidRangesForRange(vl._createIn(i),e)),this.checkAttribute(i,e)||(n.isEqual(o)||(yield new vl(n,o)),n=bl._createAfter(i)),o=bl._createAfter(i);n.isEqual(o)||(yield new vl(n,o))}}class kc{constructor(t){if(t instanceof kc)return t;let e;e="string"==typeof t?[t]:Array.isArray(t)?t:t.getAncestors({includeSelf:!0}),this._items=e.map(Bc)}get length(){return this._items.length}get last(){return this._items[this._items.length-1]}[Symbol.iterator](){return this._items[Symbol.iterator]()}push(t){const e=new kc([t]);return e._items=[...this._items,...e._items],e}getItem(t){return this._items[t]}*getNames(){yield*this._items.map((t=>t.name))}endsWith(t){return Array.from(this.getNames()).join(" ").endsWith(t)}startsWith(t){return Array.from(this.getNames()).join(" ").startsWith(t)}}function wc(t,e){const n={name:e,allowIn:[],allowContentOf:[],allowWhere:[],allowAttributes:[],allowAttributesOf:[],allowChildren:[],inheritTypesFrom:[]};return function(t,e){for(const n of t){const t=Object.keys(n).filter((t=>t.startsWith("is")));for(const o of t)e[o]=!!n[o]}}(t,n),Dc(t,n,"allowIn"),Dc(t,n,"allowContentOf"),Dc(t,n,"allowWhere"),Dc(t,n,"allowAttributes"),Dc(t,n,"allowAttributesOf"),Dc(t,n,"allowChildren"),Dc(t,n,"inheritTypesFrom"),function(t,e){for(const n of t){const t=n.inheritAllFrom;t&&(e.allowContentOf.push(t),e.allowWhere.push(t),e.allowAttributesOf.push(t),e.inheritTypesFrom.push(t))}}(t,n),n}function _c(t,e){const n=t[e];for(const o of n.allowChildren){const n=t[o];n&&n.allowIn.push(e)}n.allowChildren.length=0}function Ac(t,e){for(const n of t[e].allowContentOf)if(t[n]){Sc(t,n).forEach((t=>{t.allowIn.push(e)}))}delete t[e].allowContentOf}function Cc(t,e){for(const n of t[e].allowWhere){const o=t[n];if(o){const n=o.allowIn;t[e].allowIn.push(...n)}}delete t[e].allowWhere}function vc(t,e){for(const n of t[e].allowAttributesOf){const o=t[n];if(o){const n=o.allowAttributes;t[e].allowAttributes.push(...n)}}delete t[e].allowAttributesOf}function yc(t,e){const n=t[e];for(const e of n.inheritTypesFrom){const o=t[e];if(o){const t=Object.keys(o).filter((t=>t.startsWith("is")));for(const e of t)e in n||(n[e]=o[e])}}delete n.inheritTypesFrom}function xc(t,e){const n=t[e],o=n.allowIn.filter((e=>t[e]));n.allowIn=Array.from(new Set(o))}function Ec(t,e){const n=t[e];for(const o of n.allowIn){t[o].allowChildren.push(e)}}function Tc(t,e){const n=t[e];n.allowAttributes=Array.from(new Set(n.allowAttributes))}function Dc(t,e,n){for(const o of t){const t=o[n];"string"==typeof t?e[n].push(t):Array.isArray(t)&&e[n].push(...t)}}function Sc(t,e){const n=t[e];return(o=t,Object.keys(o).map((t=>o[t]))).filter((t=>t.allowIn.includes(n.name)));var o}function Bc(t){return"string"==typeof t||t.is("documentFragment")?{name:"string"==typeof t?t:"$documentFragment",*getAttributeKeys(){},getAttribute(){}}:{name:t.is("element")?t.name:"$text",*getAttributeKeys(){yield*t.getAttributeKeys()},getAttribute:e=>t.getAttribute(e)}}function Ic(t,e,n){for(const o of e.getAttributeKeys())t.checkAttribute(e,o)||n.removeAttribute(o,e)}class Pc extends(T()){constructor(t){super(),this._splitParts=new Map,this._cursorParents=new Map,this._modelCursor=null,this._emptyElementsToKeep=new Set,this.conversionApi={...t,consumable:null,writer:null,store:null,convertItem:(t,e)=>this._convertItem(t,e),convertChildren:(t,e)=>this._convertChildren(t,e),safeInsert:(t,e)=>this._safeInsert(t,e),updateConversionResult:(t,e)=>this._updateConversionResult(t,e),splitToAllowedParent:(t,e)=>this._splitToAllowedParent(t,e),getSplitParts:t=>this._getSplitParts(t),keepEmptyElement:t=>this._keepEmptyElement(t)}}convert(t,e,n=["$root"]){this.fire("viewCleanup",t),this._modelCursor=function(t,e){let n;for(const o of new kc(t)){const t={};for(const e of o.getAttributeKeys())t[e]=o.getAttribute(e);const i=e.createElement(o.name,t);n&&e.insert(i,n),n=bl._createAt(i,0)}return n}(n,e),this.conversionApi.writer=e,this.conversionApi.consumable=mc.createFrom(t),this.conversionApi.store={};const{modelRange:o}=this._convertItem(t,this._modelCursor),i=e.createDocumentFragment();if(o){this._removeEmptyElements();for(const t of Array.from(this._modelCursor.parent.getChildren()))e.append(t,i);i.markers=function(t,e){const n=new Set,o=new Map,i=vl._createIn(t).getItems();for(const t of i)t.is("element","$marker")&&n.add(t);for(const t of n){const n=t.getAttribute("data-name"),i=e.createPositionBefore(t);o.has(n)?o.get(n).end=i.clone():o.set(n,new vl(i.clone())),e.remove(t)}return o}(i,e)}return this._modelCursor=null,this._splitParts.clear(),this._cursorParents.clear(),this._emptyElementsToKeep.clear(),this.conversionApi.writer=null,this.conversionApi.store=null,i}_convertItem(t,e){const n={viewItem:t,modelCursor:e,modelRange:null};if(t.is("element")?this.fire(`element:${t.name}`,n,this.conversionApi):t.is("$text")?this.fire("text",n,this.conversionApi):this.fire("documentFragment",n,this.conversionApi),n.modelRange&&!(n.modelRange instanceof vl))throw new b("view-conversion-dispatcher-incorrect-result",this);return{modelRange:n.modelRange,modelCursor:n.modelCursor}}_convertChildren(t,e){let n=e.is("position")?e:bl._createAt(e,0);const o=new vl(n);for(const e of Array.from(t.getChildren())){const t=this._convertItem(e,n);t.modelRange instanceof vl&&(o.end=t.modelRange.end,n=t.modelCursor)}return{modelRange:o,modelCursor:n}}_safeInsert(t,e){const n=this._splitToAllowedParent(t,e);return!!n&&(this.conversionApi.writer.insert(t,n.position),!0)}_updateConversionResult(t,e){const n=this._getSplitParts(t),o=this.conversionApi.writer;e.modelRange||(e.modelRange=o.createRange(o.createPositionBefore(t),o.createPositionAfter(n[n.length-1])));const i=this._cursorParents.get(t);e.modelCursor=i?o.createPositionAt(i,0):e.modelRange.end}_splitToAllowedParent(t,e){const{schema:n,writer:o}=this.conversionApi;let i=n.findAllowedParent(e,t);if(i){if(i===e.parent)return{position:e};this._modelCursor.parent.getAncestors().includes(i)&&(i=null)}if(!i)return ic(e,t,n)?{position:rc(e,o)}:null;const r=this.conversionApi.writer.split(e,i),s=[];for(const t of r.range.getWalker())if("elementEnd"==t.type)s.push(t.item);else{const e=s.pop(),n=t.item;this._registerSplitPair(e,n)}const a=r.range.end.parent;return this._cursorParents.set(t,a),{position:r.position,cursorParent:a}}_registerSplitPair(t,e){this._splitParts.has(t)||this._splitParts.set(t,[t]);const n=this._splitParts.get(t);this._splitParts.set(e,n),n.push(e)}_getSplitParts(t){let e;return e=this._splitParts.has(t)?this._splitParts.get(t):[t],e}_keepEmptyElement(t){this._emptyElementsToKeep.add(t)}_removeEmptyElements(){let t=!1;for(const e of this._splitParts.keys())e.isEmpty&&!this._emptyElementsToKeep.has(e)&&(this.conversionApi.writer.remove(e),this._splitParts.delete(e),t=!0);t&&this._removeEmptyElements()}}class Rc{getHtml(t){const e=document.implementation.createHTMLDocument("").createElement("div");return e.appendChild(t),e.innerHTML}}class zc{constructor(t){this.skipComments=!0,this.domParser=new DOMParser,this.domConverter=new ca(t,{renderingMode:"data"}),this.htmlWriter=new Rc}toData(t){const e=this.domConverter.viewToDom(t);return this.htmlWriter.getHtml(e)}toView(t){const e=this._toDom(t);return this.domConverter.domToView(e,{skipComments:this.skipComments})}registerRawContentMatcher(t){this.domConverter.registerRawContentMatcher(t)}useFillerType(t){this.domConverter.blockFillerMode="marked"==t?"markedNbsp":"nbsp"}_toDom(t){t.match(/<(?:html|body|head|meta)(?:\s[^>]*)?>/i)||(t=`<body>${t}</body>`);const e=this.domParser.parseFromString(t,"text/html"),n=e.createDocumentFragment(),o=e.body.childNodes;for(;o.length>0;)n.appendChild(o[0]);return n}}class Vc extends(T()){constructor(t,e){super(),this.model=t,this.mapper=new yl,this.downcastDispatcher=new Tl({mapper:this.mapper,schema:t.schema}),this.downcastDispatcher.on("insert:$text",((t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewPosition(e.range.start),r=o.createText(e.item.data);o.insert(i,r)}),{priority:"lowest"}),this.downcastDispatcher.on("insert",((t,e,n)=>{n.convertAttributes(e.item),e.reconversion||!e.item.is("element")||e.item.isEmpty||n.convertChildren(e.item)}),{priority:"lowest"}),this.upcastDispatcher=new Pc({schema:t.schema}),this.viewDocument=new ws(e),this.stylesProcessor=e,this.htmlProcessor=new zc(this.viewDocument),this.processor=this.htmlProcessor,this._viewWriter=new Is(this.viewDocument),this.upcastDispatcher.on("text",((t,e,{schema:n,consumable:o,writer:i})=>{let r=e.modelCursor;if(!o.test(e.viewItem))return;if(!n.checkChild(r,"$text")){if(!ic(r,"$text",n))return;if(0==e.viewItem.data.trim().length)return;r=rc(r,i)}o.consume(e.viewItem);const s=i.createText(e.viewItem.data);i.insert(s,r),e.modelRange=i.createRange(r,r.getShiftedBy(s.offsetSize)),e.modelCursor=e.modelRange.end}),{priority:"lowest"}),this.upcastDispatcher.on("element",((t,e,n)=>{if(!e.modelRange&&n.consumable.consume(e.viewItem,{name:!0})){const{modelRange:t,modelCursor:o}=n.convertChildren(e.viewItem,e.modelCursor);e.modelRange=t,e.modelCursor=o}}),{priority:"lowest"}),this.upcastDispatcher.on("documentFragment",((t,e,n)=>{if(!e.modelRange&&n.consumable.consume(e.viewItem,{name:!0})){const{modelRange:t,modelCursor:o}=n.convertChildren(e.viewItem,e.modelCursor);e.modelRange=t,e.modelCursor=o}}),{priority:"lowest"}),q().prototype.decorate.call(this,"init"),q().prototype.decorate.call(this,"set"),q().prototype.decorate.call(this,"get"),this.on("init",(()=>{this.fire("ready")}),{priority:"lowest"}),this.on("ready",(()=>{this.model.enqueueChange({isUndoable:!1},oc)}),{priority:"lowest"})}get(t={}){const{rootName:e="main",trim:n="empty"}=t;if(!this._checkIfRootsExists([e]))throw new b("datacontroller-get-non-existent-root",this);const o=this.model.document.getRoot(e);return"empty"!==n||this.model.hasContent(o,{ignoreWhitespaces:!0})?this.stringify(o,t):""}stringify(t,e={}){const n=this.toView(t,e);return this.processor.toData(n)}toView(t,e={}){const n=this.viewDocument,o=this._viewWriter;this.mapper.clearBindings();const i=vl._createIn(t),r=new Bs(n);this.mapper.bindElements(t,r);const s=t.is("documentFragment")?t.markers:function(t){const e=[],n=t.root.document;if(!n)return new Map;const o=vl._createIn(t);for(const t of n.model.markers){const n=t.getRange(),i=n.isCollapsed,r=n.start.isEqual(o.start)||n.end.isEqual(o.end);if(i&&r)e.push([t.name,n]);else{const i=o.getIntersection(n);i&&e.push([t.name,i])}}return e.sort((([t,e],[n,o])=>{if("after"!==e.end.compareWith(o.start))return 1;if("before"!==e.start.compareWith(o.end))return-1;switch(e.start.compareWith(o.start)){case"before":return 1;case"after":return-1;default:switch(e.end.compareWith(o.end)){case"before":return 1;case"after":return-1;default:return n.localeCompare(t)}}})),new Map(e)}(t);return this.downcastDispatcher.convert(i,s,o,e),r}init(t){if(this.model.document.version)throw new b("datacontroller-init-document-not-empty",this);let e={};if("string"==typeof t?e.main=t:e=t,!this._checkIfRootsExists(Object.keys(e)))throw new b("datacontroller-init-non-existent-root",this);return this.model.enqueueChange({isUndoable:!1},(t=>{for(const n of Object.keys(e)){const o=this.model.document.getRoot(n);t.insert(this.parse(e[n],o),o,0)}})),Promise.resolve()}set(t,e={}){let n={};if("string"==typeof t?n.main=t:n=t,!this._checkIfRootsExists(Object.keys(n)))throw new b("datacontroller-set-non-existent-root",this);this.model.enqueueChange(e.batchType||{},(t=>{t.setSelection(null),t.removeSelectionAttribute(this.model.document.selection.getAttributeKeys());for(const e of Object.keys(n)){const o=this.model.document.getRoot(e);t.remove(t.createRangeIn(o)),t.insert(this.parse(n[e],o),o,0)}}))}parse(t,e="$root"){const n=this.processor.toView(t);return this.toModel(n,e)}toModel(t,e="$root"){return this.model.change((n=>this.upcastDispatcher.convert(t,n,e)))}addStyleProcessorRules(t){t(this.stylesProcessor)}registerRawContentMatcher(t){this.processor&&this.processor!==this.htmlProcessor&&this.processor.registerRawContentMatcher(t),this.htmlProcessor.registerRawContentMatcher(t)}destroy(){this.stopListening()}_checkIfRootsExists(t){for(const e of t)if(!this.model.document.getRootNames().includes(e))return!1;return!0}}class Fc{constructor(t,e){this._helpers=new Map,this._downcast=bi(t),this._createConversionHelpers({name:"downcast",dispatchers:this._downcast,isDowncast:!0}),this._upcast=bi(e),this._createConversionHelpers({name:"upcast",dispatchers:this._upcast,isDowncast:!1})}addAlias(t,e){const n=this._downcast.includes(e);if(!this._upcast.includes(e)&&!n)throw new b("conversion-add-alias-dispatcher-not-registered",this);this._createConversionHelpers({name:t,dispatchers:[e],isDowncast:n})}for(t){if(!this._helpers.has(t))throw new b("conversion-for-unknown-group",this);return this._helpers.get(t)}elementToElement(t){this.for("downcast").elementToElement(t);for(const{model:e,view:n}of Oc(t))this.for("upcast").elementToElement({model:e,view:n,converterPriority:t.converterPriority})}attributeToElement(t){this.for("downcast").attributeToElement(t);for(const{model:e,view:n}of Oc(t))this.for("upcast").elementToAttribute({view:n,model:e,converterPriority:t.converterPriority})}attributeToAttribute(t){this.for("downcast").attributeToAttribute(t);for(const{model:e,view:n}of Oc(t))this.for("upcast").attributeToAttribute({view:n,model:e})}_createConversionHelpers({name:t,dispatchers:e,isDowncast:n}){if(this._helpers.has(t))throw new b("conversion-group-exists",this);const o=n?new jl(e):new sc(e);this._helpers.set(t,o)}}function*Oc(t){if(t.model.values)for(const e of t.model.values){const n={key:t.model.key,value:e},o=t.view[e],i=t.upcastAlso?t.upcastAlso[e]:void 0;yield*Nc(n,o,i)}else yield*Nc(t.model,t.view,t.upcastAlso)}function*Nc(t,e,n){if(yield{model:t,view:e},n)for(const e of bi(n))yield{model:t,view:e}}class Mc{constructor(t){this.baseVersion=t,this.isDocumentOperation=null!==this.baseVersion,this.batch=null}_validate(){}toJSON(){const t=Object.assign({},this);return t.__className=this.constructor.className,delete t.batch,delete t.isDocumentOperation,t}static get className(){return"Operation"}static fromJSON(t,e){return new this(t.baseVersion)}}function Lc(t,e){const n=Wc(e),o=n.reduce(((t,e)=>t+e.offsetSize),0),i=t.parent;Uc(t);const r=t.index;return i._insertChild(r,n),jc(i,r+n.length),jc(i,r),new vl(t,t.getShiftedBy(o))}function Hc(t){if(!t.isFlat)throw new b("operation-utils-remove-range-not-flat",this);const e=t.start.parent;Uc(t.start),Uc(t.end);const n=e._removeChildren(t.start.index,t.end.index-t.start.index);return jc(e,t.start.index),n}function qc(t,e){if(!t.isFlat)throw new b("operation-utils-move-range-not-flat",this);const n=Hc(t);return Lc(e=e._getTransformedByDeletion(t.start,t.end.offset-t.start.offset),n)}function Wc(t){const e=[];!function t(n){if("string"==typeof n)e.push(new ul(n));else if(n instanceof gl)e.push(new ul(n.data,n.getAttributes()));else if(n instanceof dl)e.push(n);else if(Y(n))for(const e of n)t(e)}(t);for(let t=1;t<e.length;t++){const n=e[t],o=e[t-1];n instanceof ul&&o instanceof ul&&$c(n,o)&&(e.splice(t-1,2,new ul(o.data+n.data,o.getAttributes())),t--)}return e}function jc(t,e){const n=t.getChild(e-1),o=t.getChild(e);if(n&&o&&n.is("$text")&&o.is("$text")&&$c(n,o)){const i=new ul(n.data+o.data,n.getAttributes());t._removeChildren(e-1,2),t._insertChild(e-1,i)}}function Uc(t){const e=t.textNode,n=t.parent;if(e){const o=t.offset-e.startOffset,i=e.index;n._removeChildren(i,1);const r=new ul(e.data.substr(0,o),e.getAttributes()),s=new ul(e.data.substr(o),e.getAttributes());n._insertChild(i,[r,s])}}function $c(t,e){const n=t.getAttributes(),o=e.getAttributes();for(const t of n){if(t[1]!==e.getAttribute(t[0]))return!1;o.next()}return o.next().done}class Gc extends Mc{constructor(t,e,n,o){super(o),this.sourcePosition=t.clone(),this.sourcePosition.stickiness="toNext",this.howMany=e,this.targetPosition=n.clone(),this.targetPosition.stickiness="toNone"}get type(){return"$graveyard"==this.targetPosition.root.rootName?"remove":"$graveyard"==this.sourcePosition.root.rootName?"reinsert":"move"}clone(){return new Gc(this.sourcePosition,this.howMany,this.targetPosition,this.baseVersion)}getMovedRangeStart(){return this.targetPosition._getTransformedByDeletion(this.sourcePosition,this.howMany)}getReversed(){const t=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany);return new Gc(this.getMovedRangeStart(),this.howMany,t,this.baseVersion+1)}_validate(){const t=this.sourcePosition.parent,e=this.targetPosition.parent,n=this.sourcePosition.offset,o=this.targetPosition.offset;if(n+this.howMany>t.maxOffset)throw new b("move-operation-nodes-do-not-exist",this);if(t===e&&n<o&&o<n+this.howMany)throw new b("move-operation-range-into-itself",this);if(this.sourcePosition.root==this.targetPosition.root&&"prefix"==J(this.sourcePosition.getParentPath(),this.targetPosition.getParentPath())){const t=this.sourcePosition.path.length-1;if(this.targetPosition.path[t]>=n&&this.targetPosition.path[t]<n+this.howMany)throw new b("move-operation-node-into-itself",this)}}_execute(){qc(vl._createFromPositionAndShift(this.sourcePosition,this.howMany),this.targetPosition)}toJSON(){const t=super.toJSON();return t.sourcePosition=this.sourcePosition.toJSON(),t.targetPosition=this.targetPosition.toJSON(),t}static get className(){return"MoveOperation"}static fromJSON(t,e){const n=bl.fromJSON(t.sourcePosition,e),o=bl.fromJSON(t.targetPosition,e);return new this(n,t.howMany,o,t.baseVersion)}}class Kc extends Mc{constructor(t,e,n){super(n),this.position=t.clone(),this.position.stickiness="toNone",this.nodes=new hl(Wc(e)),this.shouldReceiveAttributes=!1}get type(){return"insert"}get howMany(){return this.nodes.maxOffset}clone(){const t=new hl([...this.nodes].map((t=>t._clone(!0)))),e=new Kc(this.position,t,this.baseVersion);return e.shouldReceiveAttributes=this.shouldReceiveAttributes,e}getReversed(){const t=this.position.root.document.graveyard,e=new bl(t,[0]);return new Gc(this.position,this.nodes.maxOffset,e,this.baseVersion+1)}_validate(){const t=this.position.parent;if(!t||t.maxOffset<this.position.offset)throw new b("insert-operation-position-invalid",this)}_execute(){const t=this.nodes;this.nodes=new hl([...t].map((t=>t._clone(!0)))),Lc(this.position,t)}toJSON(){const t=super.toJSON();return t.position=this.position.toJSON(),t.nodes=this.nodes.toJSON(),t}static get className(){return"InsertOperation"}static fromJSON(t,e){const n=[];for(const e of t.nodes)e.name?n.push(ml.fromJSON(e)):n.push(ul.fromJSON(e));const o=new Kc(bl.fromJSON(t.position,e),n,t.baseVersion);return o.shouldReceiveAttributes=t.shouldReceiveAttributes,o}}class Zc extends Mc{constructor(t,e,n,o,i,r){super(r),this.name=t,this.oldRange=e?e.clone():null,this.newRange=n?n.clone():null,this.affectsData=i,this._markers=o}get type(){return"marker"}clone(){return new Zc(this.name,this.oldRange,this.newRange,this._markers,this.affectsData,this.baseVersion)}getReversed(){return new Zc(this.name,this.newRange,this.oldRange,this._markers,this.affectsData,this.baseVersion+1)}_execute(){this.newRange?this._markers._set(this.name,this.newRange,!0,this.affectsData):this._markers._remove(this.name)}toJSON(){const t=super.toJSON();return this.oldRange&&(t.oldRange=this.oldRange.toJSON()),this.newRange&&(t.newRange=this.newRange.toJSON()),delete t._markers,t}static get className(){return"MarkerOperation"}static fromJSON(t,e){return new Zc(t.name,t.oldRange?vl.fromJSON(t.oldRange,e):null,t.newRange?vl.fromJSON(t.newRange,e):null,e.model.markers,t.affectsData,t.baseVersion)}}const Jc=function(t,e){return Ya(t,e)};class Yc extends Mc{constructor(t,e,n,o,i){super(i),this.range=t.clone(),this.key=e,this.oldValue=void 0===n?null:n,this.newValue=void 0===o?null:o}get type(){return null===this.oldValue?"addAttribute":null===this.newValue?"removeAttribute":"changeAttribute"}clone(){return new Yc(this.range,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Yc(this.range,this.key,this.newValue,this.oldValue,this.baseVersion+1)}toJSON(){const t=super.toJSON();return t.range=this.range.toJSON(),t}_validate(){if(!this.range.isFlat)throw new b("attribute-operation-range-not-flat",this);for(const t of this.range.getItems({shallow:!0})){if(null!==this.oldValue&&!Jc(t.getAttribute(this.key),this.oldValue))throw new b("attribute-operation-wrong-old-value",this,{item:t,key:this.key,value:this.oldValue});if(null===this.oldValue&&null!==this.newValue&&t.hasAttribute(this.key))throw new b("attribute-operation-attribute-exists",this,{node:t,key:this.key})}}_execute(){Jc(this.oldValue,this.newValue)||function(t,e,n){Uc(t.start),Uc(t.end);for(const o of t.getItems({shallow:!0})){const t=o.is("$textProxy")?o.textNode:o;null!==n?t._setAttribute(e,n):t._removeAttribute(e),jc(t.parent,t.index)}jc(t.end.parent,t.end.index)}(this.range,this.key,this.newValue)}static get className(){return"AttributeOperation"}static fromJSON(t,e){return new Yc(vl.fromJSON(t.range,e),t.key,t.oldValue,t.newValue,t.baseVersion)}}class Qc extends Mc{get type(){return"noop"}clone(){return new Qc(this.baseVersion)}getReversed(){return new Qc(this.baseVersion+1)}_execute(){}static get className(){return"NoOperation"}}class Xc extends Mc{constructor(t,e,n,o){super(o),this.position=t,this.position.stickiness="toNext",this.oldName=e,this.newName=n}get type(){return"rename"}clone(){return new Xc(this.position.clone(),this.oldName,this.newName,this.baseVersion)}getReversed(){return new Xc(this.position.clone(),this.newName,this.oldName,this.baseVersion+1)}_validate(){const t=this.position.nodeAfter;if(!(t instanceof ml))throw new b("rename-operation-wrong-position",this);if(t.name!==this.oldName)throw new b("rename-operation-wrong-name",this)}_execute(){this.position.nodeAfter.name=this.newName}toJSON(){const t=super.toJSON();return t.position=this.position.toJSON(),t}static get className(){return"RenameOperation"}static fromJSON(t,e){return new Xc(bl.fromJSON(t.position,e),t.oldName,t.newName,t.baseVersion)}}class td extends Mc{constructor(t,e,n,o,i){super(i),this.root=t,this.key=e,this.oldValue=n,this.newValue=o}get type(){return null===this.oldValue?"addRootAttribute":null===this.newValue?"removeRootAttribute":"changeRootAttribute"}clone(){return new td(this.root,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new td(this.root,this.key,this.newValue,this.oldValue,this.baseVersion+1)}_validate(){if(this.root!=this.root.root||this.root.is("documentFragment"))throw new b("rootattribute-operation-not-a-root",this,{root:this.root,key:this.key});if(null!==this.oldValue&&this.root.getAttribute(this.key)!==this.oldValue)throw new b("rootattribute-operation-wrong-old-value",this,{root:this.root,key:this.key});if(null===this.oldValue&&null!==this.newValue&&this.root.hasAttribute(this.key))throw new b("rootattribute-operation-attribute-exists",this,{root:this.root,key:this.key})}_execute(){null!==this.newValue?this.root._setAttribute(this.key,this.newValue):this.root._removeAttribute(this.key)}toJSON(){const t=super.toJSON();return t.root=this.root.toJSON(),t}static get className(){return"RootAttributeOperation"}static fromJSON(t,e){if(!e.getRoot(t.root))throw new b("rootattribute-operation-fromjson-no-root",this,{rootName:t.root});return new td(e.getRoot(t.root),t.key,t.oldValue,t.newValue,t.baseVersion)}}class ed extends Mc{constructor(t,e,n,o,i){super(i),this.sourcePosition=t.clone(),this.sourcePosition.stickiness="toPrevious",this.howMany=e,this.targetPosition=n.clone(),this.targetPosition.stickiness="toNext",this.graveyardPosition=o.clone()}get type(){return"merge"}get deletionPosition(){return new bl(this.sourcePosition.root,this.sourcePosition.path.slice(0,-1))}get movedRange(){const t=this.sourcePosition.getShiftedBy(Number.POSITIVE_INFINITY);return new vl(this.sourcePosition,t)}clone(){return new ed(this.sourcePosition,this.howMany,this.targetPosition,this.graveyardPosition,this.baseVersion)}getReversed(){const t=this.targetPosition._getTransformedByMergeOperation(this),e=this.sourcePosition.path.slice(0,-1),n=new bl(this.sourcePosition.root,e)._getTransformedByMergeOperation(this);return new nd(t,this.howMany,n,this.graveyardPosition,this.baseVersion+1)}_validate(){const t=this.sourcePosition.parent,e=this.targetPosition.parent;if(!t.parent)throw new b("merge-operation-source-position-invalid",this);if(!e.parent)throw new b("merge-operation-target-position-invalid",this);if(this.howMany!=t.maxOffset)throw new b("merge-operation-how-many-invalid",this)}_execute(){const t=this.sourcePosition.parent;qc(vl._createIn(t),this.targetPosition),qc(vl._createOn(t),this.graveyardPosition)}toJSON(){const t=super.toJSON();return t.sourcePosition=t.sourcePosition.toJSON(),t.targetPosition=t.targetPosition.toJSON(),t.graveyardPosition=t.graveyardPosition.toJSON(),t}static get className(){return"MergeOperation"}static fromJSON(t,e){const n=bl.fromJSON(t.sourcePosition,e),o=bl.fromJSON(t.targetPosition,e),i=bl.fromJSON(t.graveyardPosition,e);return new this(n,t.howMany,o,i,t.baseVersion)}}class nd extends Mc{constructor(t,e,n,o,i){super(i),this.splitPosition=t.clone(),this.splitPosition.stickiness="toNext",this.howMany=e,this.insertionPosition=n,this.graveyardPosition=o?o.clone():null,this.graveyardPosition&&(this.graveyardPosition.stickiness="toNext")}get type(){return"split"}get moveTargetPosition(){const t=this.insertionPosition.path.slice();return t.push(0),new bl(this.insertionPosition.root,t)}get movedRange(){const t=this.splitPosition.getShiftedBy(Number.POSITIVE_INFINITY);return new vl(this.splitPosition,t)}clone(){return new nd(this.splitPosition,this.howMany,this.insertionPosition,this.graveyardPosition,this.baseVersion)}getReversed(){const t=this.splitPosition.root.document.graveyard,e=new bl(t,[0]);return new ed(this.moveTargetPosition,this.howMany,this.splitPosition,e,this.baseVersion+1)}_validate(){const t=this.splitPosition.parent,e=this.splitPosition.offset;if(!t||t.maxOffset<e)throw new b("split-operation-position-invalid",this);if(!t.parent)throw new b("split-operation-split-in-root",this);if(this.howMany!=t.maxOffset-this.splitPosition.offset)throw new b("split-operation-how-many-invalid",this);if(this.graveyardPosition&&!this.graveyardPosition.nodeAfter)throw new b("split-operation-graveyard-position-invalid",this)}_execute(){const t=this.splitPosition.parent;if(this.graveyardPosition)qc(vl._createFromPositionAndShift(this.graveyardPosition,1),this.insertionPosition);else{const e=t._clone();Lc(this.insertionPosition,e)}qc(new vl(bl._createAt(t,this.splitPosition.offset),bl._createAt(t,t.maxOffset)),this.moveTargetPosition)}toJSON(){const t=super.toJSON();return t.splitPosition=this.splitPosition.toJSON(),t.insertionPosition=this.insertionPosition.toJSON(),this.graveyardPosition&&(t.graveyardPosition=this.graveyardPosition.toJSON()),t}static get className(){return"SplitOperation"}static getInsertionPosition(t){const e=t.path.slice(0,-1);return e[e.length-1]++,new bl(t.root,e,"toPrevious")}static fromJSON(t,e){const n=bl.fromJSON(t.splitPosition,e),o=bl.fromJSON(t.insertionPosition,e),i=t.graveyardPosition?bl.fromJSON(t.graveyardPosition,e):null;return new this(n,t.howMany,o,i,t.baseVersion)}}const od={};od[Yc.className]=Yc,od[Kc.className]=Kc,od[Zc.className]=Zc,od[Gc.className]=Gc,od[Qc.className]=Qc,od[Mc.className]=Mc,od[Xc.className]=Xc,od[td.className]=td,od[nd.className]=nd,od[ed.className]=ed;const id=new Map;function rd(t,e,n){let o=id.get(t);o||(o=new Map,id.set(t,o)),o.set(e,n)}function sd(t){return[t]}function ad(t,e,n={}){const o=function(t,e){const n=id.get(t);return n&&n.has(e)?n.get(e):sd}(t.constructor,e.constructor);try{return o(t=t.clone(),e,n)}catch(t){throw t}}function ld(t,e,n){t=t.slice(),e=e.slice();const o=new cd(n.document,n.useRelations,n.forceWeakRemove);o.setOriginalOperations(t),o.setOriginalOperations(e);const i=o.originalOperations;if(0==t.length||0==e.length)return{operationsA:t,operationsB:e,originalOperations:i};const r=new WeakMap;for(const e of t)r.set(e,0);const s={nextBaseVersionA:t[t.length-1].baseVersion+1,nextBaseVersionB:e[e.length-1].baseVersion+1,originalOperationsACount:t.length,originalOperationsBCount:e.length};let a=0;for(;a<t.length;){const n=t[a],i=r.get(n);if(i==e.length){a++;continue}const s=e[i],l=ad(n,s,o.getContext(n,s,!0)),c=ad(s,n,o.getContext(s,n,!1));o.updateRelation(n,s),o.setOriginalOperations(l,n),o.setOriginalOperations(c,s);for(const t of l)r.set(t,i+c.length);t.splice(a,1,...l),e.splice(i,1,...c)}if(n.padWithNoOps){const n=t.length-s.originalOperationsACount,o=e.length-s.originalOperationsBCount;hd(t,o-n),hd(e,n-o)}return dd(t,s.nextBaseVersionB),dd(e,s.nextBaseVersionA),{operationsA:t,operationsB:e,originalOperations:i}}class cd{constructor(t,e,n=!1){this.originalOperations=new Map,this._history=t.history,this._useRelations=e,this._forceWeakRemove=!!n,this._relations=new Map}setOriginalOperations(t,e=null){const n=e?this.originalOperations.get(e):null;for(const e of t)this.originalOperations.set(e,n||e)}updateRelation(t,e){if(t instanceof Gc)e instanceof ed?t.targetPosition.isEqual(e.sourcePosition)||e.movedRange.containsPosition(t.targetPosition)?this._setRelation(t,e,"insertAtSource"):t.targetPosition.isEqual(e.deletionPosition)?this._setRelation(t,e,"insertBetween"):t.targetPosition.isAfter(e.sourcePosition)&&this._setRelation(t,e,"moveTargetAfter"):e instanceof Gc&&(t.targetPosition.isEqual(e.sourcePosition)||t.targetPosition.isBefore(e.sourcePosition)?this._setRelation(t,e,"insertBefore"):this._setRelation(t,e,"insertAfter"));else if(t instanceof nd){if(e instanceof ed)t.splitPosition.isBefore(e.sourcePosition)&&this._setRelation(t,e,"splitBefore");else if(e instanceof Gc)if(t.splitPosition.isEqual(e.sourcePosition)||t.splitPosition.isBefore(e.sourcePosition))this._setRelation(t,e,"splitBefore");else{const n=vl._createFromPositionAndShift(e.sourcePosition,e.howMany);if(t.splitPosition.hasSameParentAs(e.sourcePosition)&&n.containsPosition(t.splitPosition)){const o=n.end.offset-t.splitPosition.offset,i=t.splitPosition.offset-n.start.offset;this._setRelation(t,e,{howMany:o,offset:i})}}}else if(t instanceof ed)e instanceof ed?(t.targetPosition.isEqual(e.sourcePosition)||this._setRelation(t,e,"mergeTargetNotMoved"),t.sourcePosition.isEqual(e.targetPosition)&&this._setRelation(t,e,"mergeSourceNotMoved"),t.sourcePosition.isEqual(e.sourcePosition)&&this._setRelation(t,e,"mergeSameElement")):e instanceof nd&&t.sourcePosition.isEqual(e.splitPosition)&&this._setRelation(t,e,"splitAtSource");else if(t instanceof Zc){const n=t.newRange;if(!n)return;if(e instanceof Gc){const o=vl._createFromPositionAndShift(e.sourcePosition,e.howMany),i=o.containsPosition(n.start)||o.start.isEqual(n.start),r=o.containsPosition(n.end)||o.end.isEqual(n.end);!i&&!r||o.containsRange(n)||this._setRelation(t,e,{side:i?"left":"right",path:i?n.start.path.slice():n.end.path.slice()})}else if(e instanceof ed){const o=n.start.isEqual(e.targetPosition),i=n.start.isEqual(e.deletionPosition),r=n.end.isEqual(e.deletionPosition),s=n.end.isEqual(e.sourcePosition);(o||i||r||s)&&this._setRelation(t,e,{wasInLeftElement:o,wasStartBeforeMergedElement:i,wasEndBeforeMergedElement:r,wasInRightElement:s})}}}getContext(t,e,n){return{aIsStrong:n,aWasUndone:this._wasUndone(t),bWasUndone:this._wasUndone(e),abRelation:this._useRelations?this._getRelation(t,e):null,baRelation:this._useRelations?this._getRelation(e,t):null,forceWeakRemove:this._forceWeakRemove}}_wasUndone(t){const e=this.originalOperations.get(t);return e.wasUndone||this._history.isUndoneOperation(e)}_getRelation(t,e){const n=this.originalOperations.get(e),o=this._history.getUndoneOperation(n);if(!o)return null;const i=this.originalOperations.get(t),r=this._relations.get(i);return r&&r.get(o)||null}_setRelation(t,e,n){const o=this.originalOperations.get(t),i=this.originalOperations.get(e);let r=this._relations.get(o);r||(r=new Map,this._relations.set(o,r)),r.set(i,n)}}function dd(t,e){for(const n of t)n.baseVersion=e++}function hd(t,e){for(let n=0;n<e;n++)t.push(new Qc(0))}function ud(t,e,n){const o=t.nodes.getNode(0).getAttribute(e);if(o==n)return null;const i=new vl(t.position,t.position.getShiftedBy(t.howMany));return new Yc(i,e,o,n,0)}function gd(t,e){return null===t.targetPosition._getTransformedByDeletion(e.sourcePosition,e.howMany)}function md(t,e){const n=[];for(let o=0;o<t.length;o++){const i=t[o],r=new Gc(i.start,i.end.offset-i.start.offset,e,0);n.push(r);for(let e=o+1;e<t.length;e++)t[e]=t[e]._getTransformedByMove(r.sourcePosition,r.targetPosition,r.howMany)[0];e=e._getTransformedByMove(r.sourcePosition,r.targetPosition,r.howMany)}return n}rd(Yc,Yc,((t,e,n)=>{if(t.key===e.key&&t.range.start.hasSameParentAs(e.range.start)){const o=t.range.getDifference(e.range).map((e=>new Yc(e,t.key,t.oldValue,t.newValue,0))),i=t.range.getIntersection(e.range);return i&&n.aIsStrong&&o.push(new Yc(i,e.key,e.newValue,t.newValue,0)),0==o.length?[new Qc(0)]:o}return[t]})),rd(Yc,Kc,((t,e)=>{if(t.range.start.hasSameParentAs(e.position)&&t.range.containsPosition(e.position)){const n=t.range._getTransformedByInsertion(e.position,e.howMany,!e.shouldReceiveAttributes).map((e=>new Yc(e,t.key,t.oldValue,t.newValue,t.baseVersion)));if(e.shouldReceiveAttributes){const o=ud(e,t.key,t.oldValue);o&&n.unshift(o)}return n}return t.range=t.range._getTransformedByInsertion(e.position,e.howMany,!1)[0],[t]})),rd(Yc,ed,((t,e)=>{const n=[];t.range.start.hasSameParentAs(e.deletionPosition)&&(t.range.containsPosition(e.deletionPosition)||t.range.start.isEqual(e.deletionPosition))&&n.push(vl._createFromPositionAndShift(e.graveyardPosition,1));const o=t.range._getTransformedByMergeOperation(e);return o.isCollapsed||n.push(o),n.map((e=>new Yc(e,t.key,t.oldValue,t.newValue,t.baseVersion)))})),rd(Yc,Gc,((t,e)=>{const n=function(t,e){const n=vl._createFromPositionAndShift(e.sourcePosition,e.howMany);let o=null,i=[];n.containsRange(t,!0)?o=t:t.start.hasSameParentAs(n.start)?(i=t.getDifference(n),o=t.getIntersection(n)):i=[t];const r=[];for(let t of i){t=t._getTransformedByDeletion(e.sourcePosition,e.howMany);const n=e.getMovedRangeStart(),o=t.start.hasSameParentAs(n),i=t._getTransformedByInsertion(n,e.howMany,o);r.push(...i)}o&&r.push(o._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,!1)[0]);return r}(t.range,e);return n.map((e=>new Yc(e,t.key,t.oldValue,t.newValue,t.baseVersion)))})),rd(Yc,nd,((t,e)=>{if(t.range.end.isEqual(e.insertionPosition))return e.graveyardPosition||t.range.end.offset++,[t];if(t.range.start.hasSameParentAs(e.splitPosition)&&t.range.containsPosition(e.splitPosition)){const n=t.clone();return n.range=new vl(e.moveTargetPosition.clone(),t.range.end._getCombined(e.splitPosition,e.moveTargetPosition)),t.range.end=e.splitPosition.clone(),t.range.end.stickiness="toPrevious",[t,n]}return t.range=t.range._getTransformedBySplitOperation(e),[t]})),rd(Kc,Yc,((t,e)=>{const n=[t];if(t.shouldReceiveAttributes&&t.position.hasSameParentAs(e.range.start)&&e.range.containsPosition(t.position)){const o=ud(t,e.key,e.newValue);o&&n.push(o)}return n})),rd(Kc,Kc,((t,e,n)=>(t.position.isEqual(e.position)&&n.aIsStrong||(t.position=t.position._getTransformedByInsertOperation(e)),[t]))),rd(Kc,Gc,((t,e)=>(t.position=t.position._getTransformedByMoveOperation(e),[t]))),rd(Kc,nd,((t,e)=>(t.position=t.position._getTransformedBySplitOperation(e),[t]))),rd(Kc,ed,((t,e)=>(t.position=t.position._getTransformedByMergeOperation(e),[t]))),rd(Zc,Kc,((t,e)=>(t.oldRange&&(t.oldRange=t.oldRange._getTransformedByInsertOperation(e)[0]),t.newRange&&(t.newRange=t.newRange._getTransformedByInsertOperation(e)[0]),[t]))),rd(Zc,Zc,((t,e,n)=>{if(t.name==e.name){if(!n.aIsStrong)return[new Qc(0)];t.oldRange=e.newRange?e.newRange.clone():null}return[t]})),rd(Zc,ed,((t,e)=>(t.oldRange&&(t.oldRange=t.oldRange._getTransformedByMergeOperation(e)),t.newRange&&(t.newRange=t.newRange._getTransformedByMergeOperation(e)),[t]))),rd(Zc,Gc,((t,e,n)=>{if(t.oldRange&&(t.oldRange=vl._createFromRanges(t.oldRange._getTransformedByMoveOperation(e))),t.newRange){if(n.abRelation){const o=vl._createFromRanges(t.newRange._getTransformedByMoveOperation(e));if("left"==n.abRelation.side&&e.targetPosition.isEqual(t.newRange.start))return t.newRange.end=o.end,t.newRange.start.path=n.abRelation.path,[t];if("right"==n.abRelation.side&&e.targetPosition.isEqual(t.newRange.end))return t.newRange.start=o.start,t.newRange.end.path=n.abRelation.path,[t]}t.newRange=vl._createFromRanges(t.newRange._getTransformedByMoveOperation(e))}return[t]})),rd(Zc,nd,((t,e,n)=>{if(t.oldRange&&(t.oldRange=t.oldRange._getTransformedBySplitOperation(e)),t.newRange){if(n.abRelation){const o=t.newRange._getTransformedBySplitOperation(e);return t.newRange.start.isEqual(e.splitPosition)&&n.abRelation.wasStartBeforeMergedElement?t.newRange.start=bl._createAt(e.insertionPosition):t.newRange.start.isEqual(e.splitPosition)&&!n.abRelation.wasInLeftElement&&(t.newRange.start=bl._createAt(e.moveTargetPosition)),t.newRange.end.isEqual(e.splitPosition)&&n.abRelation.wasInRightElement?t.newRange.end=bl._createAt(e.moveTargetPosition):t.newRange.end.isEqual(e.splitPosition)&&n.abRelation.wasEndBeforeMergedElement?t.newRange.end=bl._createAt(e.insertionPosition):t.newRange.end=o.end,[t]}t.newRange=t.newRange._getTransformedBySplitOperation(e)}return[t]})),rd(ed,Kc,((t,e)=>(t.sourcePosition.hasSameParentAs(e.position)&&(t.howMany+=e.howMany),t.sourcePosition=t.sourcePosition._getTransformedByInsertOperation(e),t.targetPosition=t.targetPosition._getTransformedByInsertOperation(e),[t]))),rd(ed,ed,((t,e,n)=>{if(t.sourcePosition.isEqual(e.sourcePosition)&&t.targetPosition.isEqual(e.targetPosition)){if(n.bWasUndone){const n=e.graveyardPosition.path.slice();return n.push(0),t.sourcePosition=new bl(e.graveyardPosition.root,n),t.howMany=0,[t]}return[new Qc(0)]}if(t.sourcePosition.isEqual(e.sourcePosition)&&!t.targetPosition.isEqual(e.targetPosition)&&!n.bWasUndone&&"splitAtSource"!=n.abRelation){const o="$graveyard"==t.targetPosition.root.rootName,i="$graveyard"==e.targetPosition.root.rootName,r=o&&!i;if(i&&!o||!r&&n.aIsStrong){const n=e.targetPosition._getTransformedByMergeOperation(e),o=t.targetPosition._getTransformedByMergeOperation(e);return[new Gc(n,t.howMany,o,0)]}return[new Qc(0)]}return t.sourcePosition.hasSameParentAs(e.targetPosition)&&(t.howMany+=e.howMany),t.sourcePosition=t.sourcePosition._getTransformedByMergeOperation(e),t.targetPosition=t.targetPosition._getTransformedByMergeOperation(e),t.graveyardPosition.isEqual(e.graveyardPosition)&&n.aIsStrong||(t.graveyardPosition=t.graveyardPosition._getTransformedByMergeOperation(e)),[t]})),rd(ed,Gc,((t,e,n)=>{const o=vl._createFromPositionAndShift(e.sourcePosition,e.howMany);return"remove"==e.type&&!n.bWasUndone&&!n.forceWeakRemove&&t.deletionPosition.hasSameParentAs(e.sourcePosition)&&o.containsPosition(t.sourcePosition)?[new Qc(0)]:(t.sourcePosition.hasSameParentAs(e.targetPosition)&&(t.howMany+=e.howMany),t.sourcePosition.hasSameParentAs(e.sourcePosition)&&(t.howMany-=e.howMany),t.sourcePosition=t.sourcePosition._getTransformedByMoveOperation(e),t.targetPosition=t.targetPosition._getTransformedByMoveOperation(e),t.graveyardPosition.isEqual(e.targetPosition)||(t.graveyardPosition=t.graveyardPosition._getTransformedByMoveOperation(e)),[t])})),rd(ed,nd,((t,e,n)=>{if(e.graveyardPosition&&(t.graveyardPosition=t.graveyardPosition._getTransformedByDeletion(e.graveyardPosition,1),t.deletionPosition.isEqual(e.graveyardPosition)&&(t.howMany=e.howMany)),t.targetPosition.isEqual(e.splitPosition)){const o=0!=e.howMany,i=e.graveyardPosition&&t.deletionPosition.isEqual(e.graveyardPosition);if(o||i||"mergeTargetNotMoved"==n.abRelation)return t.sourcePosition=t.sourcePosition._getTransformedBySplitOperation(e),[t]}if(t.sourcePosition.isEqual(e.splitPosition)){if("mergeSourceNotMoved"==n.abRelation)return t.howMany=0,t.targetPosition=t.targetPosition._getTransformedBySplitOperation(e),[t];if("mergeSameElement"==n.abRelation||t.sourcePosition.offset>0)return t.sourcePosition=e.moveTargetPosition.clone(),t.targetPosition=t.targetPosition._getTransformedBySplitOperation(e),[t]}return t.sourcePosition.hasSameParentAs(e.splitPosition)&&(t.howMany=e.splitPosition.offset),t.sourcePosition=t.sourcePosition._getTransformedBySplitOperation(e),t.targetPosition=t.targetPosition._getTransformedBySplitOperation(e),[t]})),rd(Gc,Kc,((t,e)=>{const n=vl._createFromPositionAndShift(t.sourcePosition,t.howMany)._getTransformedByInsertOperation(e,!1)[0];return t.sourcePosition=n.start,t.howMany=n.end.offset-n.start.offset,t.targetPosition.isEqual(e.position)||(t.targetPosition=t.targetPosition._getTransformedByInsertOperation(e)),[t]})),rd(Gc,Gc,((t,e,n)=>{const o=vl._createFromPositionAndShift(t.sourcePosition,t.howMany),i=vl._createFromPositionAndShift(e.sourcePosition,e.howMany);let r,s=n.aIsStrong,a=!n.aIsStrong;if("insertBefore"==n.abRelation||"insertAfter"==n.baRelation?a=!0:"insertAfter"!=n.abRelation&&"insertBefore"!=n.baRelation||(a=!1),r=t.targetPosition.isEqual(e.targetPosition)&&a?t.targetPosition._getTransformedByDeletion(e.sourcePosition,e.howMany):t.targetPosition._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),gd(t,e)&&gd(e,t))return[e.getReversed()];if(o.containsPosition(e.targetPosition)&&o.containsRange(i,!0))return o.start=o.start._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),o.end=o.end._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),md([o],r);if(i.containsPosition(t.targetPosition)&&i.containsRange(o,!0))return o.start=o.start._getCombined(e.sourcePosition,e.getMovedRangeStart()),o.end=o.end._getCombined(e.sourcePosition,e.getMovedRangeStart()),md([o],r);const l=J(t.sourcePosition.getParentPath(),e.sourcePosition.getParentPath());if("prefix"==l||"extension"==l)return o.start=o.start._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),o.end=o.end._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),md([o],r);"remove"!=t.type||"remove"==e.type||n.aWasUndone||n.forceWeakRemove?"remove"==t.type||"remove"!=e.type||n.bWasUndone||n.forceWeakRemove||(s=!1):s=!0;const c=[],d=o.getDifference(i);for(const t of d){t.start=t.start._getTransformedByDeletion(e.sourcePosition,e.howMany),t.end=t.end._getTransformedByDeletion(e.sourcePosition,e.howMany);const n="same"==J(t.start.getParentPath(),e.getMovedRangeStart().getParentPath()),o=t._getTransformedByInsertion(e.getMovedRangeStart(),e.howMany,n);c.push(...o)}const h=o.getIntersection(i);return null!==h&&s&&(h.start=h.start._getCombined(e.sourcePosition,e.getMovedRangeStart()),h.end=h.end._getCombined(e.sourcePosition,e.getMovedRangeStart()),0===c.length?c.push(h):1==c.length?i.start.isBefore(o.start)||i.start.isEqual(o.start)?c.unshift(h):c.push(h):c.splice(1,0,h)),0===c.length?[new Qc(t.baseVersion)]:md(c,r)})),rd(Gc,nd,((t,e,n)=>{let o=t.targetPosition.clone();t.targetPosition.isEqual(e.insertionPosition)&&e.graveyardPosition&&"moveTargetAfter"!=n.abRelation||(o=t.targetPosition._getTransformedBySplitOperation(e));const i=vl._createFromPositionAndShift(t.sourcePosition,t.howMany);if(i.end.isEqual(e.insertionPosition))return e.graveyardPosition||t.howMany++,t.targetPosition=o,[t];if(i.start.hasSameParentAs(e.splitPosition)&&i.containsPosition(e.splitPosition)){let t=new vl(e.splitPosition,i.end);t=t._getTransformedBySplitOperation(e);return md([new vl(i.start,e.splitPosition),t],o)}t.targetPosition.isEqual(e.splitPosition)&&"insertAtSource"==n.abRelation&&(o=e.moveTargetPosition),t.targetPosition.isEqual(e.insertionPosition)&&"insertBetween"==n.abRelation&&(o=t.targetPosition);const r=[i._getTransformedBySplitOperation(e)];if(e.graveyardPosition){const o=i.start.isEqual(e.graveyardPosition)||i.containsPosition(e.graveyardPosition);t.howMany>1&&o&&!n.aWasUndone&&r.push(vl._createFromPositionAndShift(e.insertionPosition,1))}return md(r,o)})),rd(Gc,ed,((t,e,n)=>{const o=vl._createFromPositionAndShift(t.sourcePosition,t.howMany);if(e.deletionPosition.hasSameParentAs(t.sourcePosition)&&o.containsPosition(e.sourcePosition))if("remove"!=t.type||n.forceWeakRemove){if(1==t.howMany)return n.bWasUndone?(t.sourcePosition=e.graveyardPosition.clone(),t.targetPosition=t.targetPosition._getTransformedByMergeOperation(e),[t]):[new Qc(0)]}else if(!n.aWasUndone){const n=[];let o=e.graveyardPosition.clone(),i=e.targetPosition._getTransformedByMergeOperation(e);t.howMany>1&&(n.push(new Gc(t.sourcePosition,t.howMany-1,t.targetPosition,0)),o=o._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany-1),i=i._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany-1));const r=e.deletionPosition._getCombined(t.sourcePosition,t.targetPosition),s=new Gc(o,1,r,0),a=s.getMovedRangeStart().path.slice();a.push(0);const l=new bl(s.targetPosition.root,a);i=i._getTransformedByMove(o,r,1);const c=new Gc(i,e.howMany,l,0);return n.push(s),n.push(c),n}const i=vl._createFromPositionAndShift(t.sourcePosition,t.howMany)._getTransformedByMergeOperation(e);return t.sourcePosition=i.start,t.howMany=i.end.offset-i.start.offset,t.targetPosition=t.targetPosition._getTransformedByMergeOperation(e),[t]})),rd(Xc,Kc,((t,e)=>(t.position=t.position._getTransformedByInsertOperation(e),[t]))),rd(Xc,ed,((t,e)=>t.position.isEqual(e.deletionPosition)?(t.position=e.graveyardPosition.clone(),t.position.stickiness="toNext",[t]):(t.position=t.position._getTransformedByMergeOperation(e),[t]))),rd(Xc,Gc,((t,e)=>(t.position=t.position._getTransformedByMoveOperation(e),[t]))),rd(Xc,Xc,((t,e,n)=>{if(t.position.isEqual(e.position)){if(!n.aIsStrong)return[new Qc(0)];t.oldName=e.newName}return[t]})),rd(Xc,nd,((t,e)=>{if("same"==J(t.position.path,e.splitPosition.getParentPath())&&!e.graveyardPosition){const e=new Xc(t.position.getShiftedBy(1),t.oldName,t.newName,0);return[t,e]}return t.position=t.position._getTransformedBySplitOperation(e),[t]})),rd(td,td,((t,e,n)=>{if(t.root===e.root&&t.key===e.key){if(!n.aIsStrong||t.newValue===e.newValue)return[new Qc(0)];t.oldValue=e.newValue}return[t]})),rd(nd,Kc,((t,e)=>(t.splitPosition.hasSameParentAs(e.position)&&t.splitPosition.offset<e.position.offset&&(t.howMany+=e.howMany),t.splitPosition=t.splitPosition._getTransformedByInsertOperation(e),t.insertionPosition=t.insertionPosition._getTransformedByInsertOperation(e),[t]))),rd(nd,ed,((t,e,n)=>{if(!t.graveyardPosition&&!n.bWasUndone&&t.splitPosition.hasSameParentAs(e.sourcePosition)){const n=e.graveyardPosition.path.slice();n.push(0);const o=new bl(e.graveyardPosition.root,n),i=nd.getInsertionPosition(new bl(e.graveyardPosition.root,n)),r=new nd(o,0,i,null,0);return t.splitPosition=t.splitPosition._getTransformedByMergeOperation(e),t.insertionPosition=nd.getInsertionPosition(t.splitPosition),t.graveyardPosition=r.insertionPosition.clone(),t.graveyardPosition.stickiness="toNext",[r,t]}return t.splitPosition.hasSameParentAs(e.deletionPosition)&&!t.splitPosition.isAfter(e.deletionPosition)&&t.howMany--,t.splitPosition.hasSameParentAs(e.targetPosition)&&(t.howMany+=e.howMany),t.splitPosition=t.splitPosition._getTransformedByMergeOperation(e),t.insertionPosition=nd.getInsertionPosition(t.splitPosition),t.graveyardPosition&&(t.graveyardPosition=t.graveyardPosition._getTransformedByMergeOperation(e)),[t]})),rd(nd,Gc,((t,e,n)=>{const o=vl._createFromPositionAndShift(e.sourcePosition,e.howMany);if(t.graveyardPosition){const i=o.start.isEqual(t.graveyardPosition)||o.containsPosition(t.graveyardPosition);if(!n.bWasUndone&&i){const n=t.splitPosition._getTransformedByMoveOperation(e),o=t.graveyardPosition._getTransformedByMoveOperation(e),i=o.path.slice();i.push(0);const r=new bl(o.root,i);return[new Gc(n,t.howMany,r,0)]}t.graveyardPosition=t.graveyardPosition._getTransformedByMoveOperation(e)}const i=t.splitPosition.isEqual(e.targetPosition);if(i&&("insertAtSource"==n.baRelation||"splitBefore"==n.abRelation))return t.howMany+=e.howMany,t.splitPosition=t.splitPosition._getTransformedByDeletion(e.sourcePosition,e.howMany),t.insertionPosition=nd.getInsertionPosition(t.splitPosition),[t];if(i&&n.abRelation&&n.abRelation.howMany){const{howMany:e,offset:o}=n.abRelation;return t.howMany+=e,t.splitPosition=t.splitPosition.getShiftedBy(o),[t]}if(t.splitPosition.hasSameParentAs(e.sourcePosition)&&o.containsPosition(t.splitPosition)){const n=e.howMany-(t.splitPosition.offset-e.sourcePosition.offset);return t.howMany-=n,t.splitPosition.hasSameParentAs(e.targetPosition)&&t.splitPosition.offset<e.targetPosition.offset&&(t.howMany+=e.howMany),t.splitPosition=e.sourcePosition.clone(),t.insertionPosition=nd.getInsertionPosition(t.splitPosition),[t]}return e.sourcePosition.isEqual(e.targetPosition)||(t.splitPosition.hasSameParentAs(e.sourcePosition)&&t.splitPosition.offset<=e.sourcePosition.offset&&(t.howMany-=e.howMany),t.splitPosition.hasSameParentAs(e.targetPosition)&&t.splitPosition.offset<e.targetPosition.offset&&(t.howMany+=e.howMany)),t.splitPosition.stickiness="toNone",t.splitPosition=t.splitPosition._getTransformedByMoveOperation(e),t.splitPosition.stickiness="toNext",t.graveyardPosition?t.insertionPosition=t.insertionPosition._getTransformedByMoveOperation(e):t.insertionPosition=nd.getInsertionPosition(t.splitPosition),[t]})),rd(nd,nd,((t,e,n)=>{if(t.splitPosition.isEqual(e.splitPosition)){if(!t.graveyardPosition&&!e.graveyardPosition)return[new Qc(0)];if(t.graveyardPosition&&e.graveyardPosition&&t.graveyardPosition.isEqual(e.graveyardPosition))return[new Qc(0)];if("splitBefore"==n.abRelation)return t.howMany=0,t.graveyardPosition=t.graveyardPosition._getTransformedBySplitOperation(e),[t]}if(t.graveyardPosition&&e.graveyardPosition&&t.graveyardPosition.isEqual(e.graveyardPosition)){const o="$graveyard"==t.splitPosition.root.rootName,i="$graveyard"==e.splitPosition.root.rootName,r=o&&!i;if(i&&!o||!r&&n.aIsStrong){const n=[];return e.howMany&&n.push(new Gc(e.moveTargetPosition,e.howMany,e.splitPosition,0)),t.howMany&&n.push(new Gc(t.splitPosition,t.howMany,t.moveTargetPosition,0)),n}return[new Qc(0)]}if(t.graveyardPosition&&(t.graveyardPosition=t.graveyardPosition._getTransformedBySplitOperation(e)),t.splitPosition.isEqual(e.insertionPosition)&&"splitBefore"==n.abRelation)return t.howMany++,[t];if(e.splitPosition.isEqual(t.insertionPosition)&&"splitBefore"==n.baRelation){const n=e.insertionPosition.path.slice();n.push(0);const o=new bl(e.insertionPosition.root,n);return[t,new Gc(t.insertionPosition,1,o,0)]}return t.splitPosition.hasSameParentAs(e.splitPosition)&&t.splitPosition.offset<e.splitPosition.offset&&(t.howMany-=e.howMany),t.splitPosition=t.splitPosition._getTransformedBySplitOperation(e),t.insertionPosition=nd.getInsertionPosition(t.splitPosition),[t]}));class pd extends(T(bl)){constructor(t,e,n="toNone"){if(super(t,e,n),!this.root.is("rootElement"))throw new b("model-liveposition-root-not-rootelement",t);fd.call(this)}detach(){this.stopListening()}toPosition(){return new bl(this.root,this.path.slice(),this.stickiness)}static fromPosition(t,e){return new this(t.root,t.path.slice(),e||t.stickiness)}}function fd(){this.listenTo(this.root.document.model,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&bd.call(this,n)}),{priority:"low"})}function bd(t){const e=this.getTransformedByOperation(t);if(!this.isEqual(e)){const t=this.toPosition();this.path=e.path,this.root=e.root,this.fire("change",t)}}pd.prototype.is=function(t){return"livePosition"===t||"model:livePosition"===t||"position"==t||"model:position"===t};class kd{constructor(t={}){"string"==typeof t&&(t="transparent"===t?{isUndoable:!1}:{},k("batch-constructor-deprecated-string-type"));const{isUndoable:e=!0,isLocal:n=!0,isUndo:o=!1,isTyping:i=!1}=t;this.operations=[],this.isUndoable=e,this.isLocal=n,this.isUndo=o,this.isTyping=i}get type(){return k("batch-type-deprecated"),"default"}get baseVersion(){for(const t of this.operations)if(null!==t.baseVersion)return t.baseVersion;return null}addOperation(t){return t.batch=this,this.operations.push(t),t}}class wd{constructor(t){this._markerCollection=t,this._changesInElement=new Map,this._elementSnapshots=new Map,this._changedMarkers=new Map,this._changeCount=0,this._cachedChanges=null,this._cachedChangesWithGraveyard=null,this._refreshedItems=new Set}get isEmpty(){return 0==this._changesInElement.size&&0==this._changedMarkers.size}bufferOperation(t){const e=t;switch(e.type){case"insert":if(this._isInInsertedElement(e.position.parent))return;this._markInsert(e.position.parent,e.position.offset,e.nodes.maxOffset);break;case"addAttribute":case"removeAttribute":case"changeAttribute":for(const t of e.range.getItems({shallow:!0}))this._isInInsertedElement(t.parent)||this._markAttribute(t);break;case"remove":case"move":case"reinsert":{if(e.sourcePosition.isEqual(e.targetPosition)||e.sourcePosition.getShiftedBy(e.howMany).isEqual(e.targetPosition))return;const t=this._isInInsertedElement(e.sourcePosition.parent),n=this._isInInsertedElement(e.targetPosition.parent);t||this._markRemove(e.sourcePosition.parent,e.sourcePosition.offset,e.howMany),n||this._markInsert(e.targetPosition.parent,e.getMovedRangeStart().offset,e.howMany);break}case"rename":{if(this._isInInsertedElement(e.position.parent))return;this._markRemove(e.position.parent,e.position.offset,1),this._markInsert(e.position.parent,e.position.offset,1);const t=vl._createFromPositionAndShift(e.position,1);for(const e of this._markerCollection.getMarkersIntersectingRange(t)){const t=e.getData();this.bufferMarkerChange(e.name,t,t)}break}case"split":{const t=e.splitPosition.parent;this._isInInsertedElement(t)||this._markRemove(t,e.splitPosition.offset,e.howMany),this._isInInsertedElement(e.insertionPosition.parent)||this._markInsert(e.insertionPosition.parent,e.insertionPosition.offset,1),e.graveyardPosition&&this._markRemove(e.graveyardPosition.parent,e.graveyardPosition.offset,1);break}case"merge":{const t=e.sourcePosition.parent;this._isInInsertedElement(t.parent)||this._markRemove(t.parent,t.startOffset,1);const n=e.graveyardPosition.parent;this._markInsert(n,e.graveyardPosition.offset,1);const o=e.targetPosition.parent;this._isInInsertedElement(o)||this._markInsert(o,e.targetPosition.offset,t.maxOffset);break}}this._cachedChanges=null}bufferMarkerChange(t,e,n){const o=this._changedMarkers.get(t);o?(o.newMarkerData=n,null==o.oldMarkerData.range&&null==n.range&&this._changedMarkers.delete(t)):this._changedMarkers.set(t,{newMarkerData:n,oldMarkerData:e})}getMarkersToRemove(){const t=[];for(const[e,n]of this._changedMarkers)null!=n.oldMarkerData.range&&t.push({name:e,range:n.oldMarkerData.range});return t}getMarkersToAdd(){const t=[];for(const[e,n]of this._changedMarkers)null!=n.newMarkerData.range&&t.push({name:e,range:n.newMarkerData.range});return t}getChangedMarkers(){return Array.from(this._changedMarkers).map((([t,e])=>({name:t,data:{oldRange:e.oldMarkerData.range,newRange:e.newMarkerData.range}})))}hasDataChanges(){if(this._changesInElement.size>0)return!0;for(const{newMarkerData:t,oldMarkerData:e}of this._changedMarkers.values()){if(t.affectsData!==e.affectsData)return!0;if(t.affectsData){const n=t.range&&!e.range,o=!t.range&&e.range,i=t.range&&e.range&&!t.range.isEqual(e.range);if(n||o||i)return!0}}return!1}getChanges(t={}){if(this._cachedChanges)return t.includeChangesInGraveyard?this._cachedChangesWithGraveyard.slice():this._cachedChanges.slice();let e=[];for(const t of this._changesInElement.keys()){const n=this._changesInElement.get(t).sort(((t,e)=>t.offset===e.offset?t.type!=e.type?"remove"==t.type?-1:1:0:t.offset<e.offset?-1:1)),o=this._elementSnapshots.get(t),i=_d(t.getChildren()),r=Ad(o.length,n);let s=0,a=0;for(const n of r)if("i"===n)e.push(this._getInsertDiff(t,s,i[s])),s++;else if("r"===n)e.push(this._getRemoveDiff(t,s,o[a])),a++;else if("a"===n){const n=i[s].attributes,r=o[a].attributes;let l;if("$text"==i[s].name)l=new vl(bl._createAt(t,s),bl._createAt(t,s+1));else{const e=t.offsetToIndex(s);l=new vl(bl._createAt(t,s),bl._createAt(t.getChild(e),0))}e.push(...this._getAttributesDiff(l,r,n)),s++,a++}else s++,a++}e.sort(((t,e)=>t.position.root!=e.position.root?t.position.root.rootName<e.position.root.rootName?-1:1:t.position.isEqual(e.position)?t.changeCount-e.changeCount:t.position.isBefore(e.position)?-1:1));for(let t=1,n=0;t<e.length;t++){const o=e[n],i=e[t],r="remove"==o.type&&"remove"==i.type&&"$text"==o.name&&"$text"==i.name&&o.position.isEqual(i.position),s="insert"==o.type&&"insert"==i.type&&"$text"==o.name&&"$text"==i.name&&o.position.parent==i.position.parent&&o.position.offset+o.length==i.position.offset,a="attribute"==o.type&&"attribute"==i.type&&o.position.parent==i.position.parent&&o.range.isFlat&&i.range.isFlat&&o.position.offset+o.length==i.position.offset&&o.attributeKey==i.attributeKey&&o.attributeOldValue==i.attributeOldValue&&o.attributeNewValue==i.attributeNewValue;r||s||a?(o.length++,a&&(o.range.end=o.range.end.getShiftedBy(1)),e[t]=null):n=t}e=e.filter((t=>t));for(const t of e)delete t.changeCount,"attribute"==t.type&&(delete t.position,delete t.length);return this._changeCount=0,this._cachedChangesWithGraveyard=e,this._cachedChanges=e.filter(Cd),t.includeChangesInGraveyard?this._cachedChangesWithGraveyard.slice():this._cachedChanges.slice()}getRefreshedItems(){return new Set(this._refreshedItems)}reset(){this._changesInElement.clear(),this._elementSnapshots.clear(),this._changedMarkers.clear(),this._refreshedItems=new Set,this._cachedChanges=null}_refreshItem(t){if(this._isInInsertedElement(t.parent))return;this._markRemove(t.parent,t.startOffset,t.offsetSize),this._markInsert(t.parent,t.startOffset,t.offsetSize),this._refreshedItems.add(t);const e=vl._createOn(t);for(const t of this._markerCollection.getMarkersIntersectingRange(e)){const e=t.getData();this.bufferMarkerChange(t.name,e,e)}this._cachedChanges=null}_markInsert(t,e,n){const o={type:"insert",offset:e,howMany:n,count:this._changeCount++};this._markChange(t,o)}_markRemove(t,e,n){const o={type:"remove",offset:e,howMany:n,count:this._changeCount++};this._markChange(t,o),this._removeAllNestedChanges(t,e,n)}_markAttribute(t){const e={type:"attribute",offset:t.startOffset,howMany:t.offsetSize,count:this._changeCount++};this._markChange(t.parent,e)}_markChange(t,e){this._makeSnapshot(t);const n=this._getChangesForElement(t);this._handleChange(e,n),n.push(e);for(let t=0;t<n.length;t++)n[t].howMany<1&&(n.splice(t,1),t--)}_getChangesForElement(t){let e;return this._changesInElement.has(t)?e=this._changesInElement.get(t):(e=[],this._changesInElement.set(t,e)),e}_makeSnapshot(t){this._elementSnapshots.has(t)||this._elementSnapshots.set(t,_d(t.getChildren()))}_handleChange(t,e){t.nodesToHandle=t.howMany;for(const n of e){const o=t.offset+t.howMany,i=n.offset+n.howMany;if("insert"==t.type&&("insert"==n.type&&(t.offset<=n.offset?n.offset+=t.howMany:t.offset<i&&(n.howMany+=t.nodesToHandle,t.nodesToHandle=0)),"remove"==n.type&&t.offset<n.offset&&(n.offset+=t.howMany),"attribute"==n.type))if(t.offset<=n.offset)n.offset+=t.howMany;else if(t.offset<i){const i=n.howMany;n.howMany=t.offset-n.offset,e.unshift({type:"attribute",offset:o,howMany:i-n.howMany,count:this._changeCount++})}if("remove"==t.type){if("insert"==n.type)if(o<=n.offset)n.offset-=t.howMany;else if(o<=i)if(t.offset<n.offset){const e=o-n.offset;n.offset=t.offset,n.howMany-=e,t.nodesToHandle-=e}else n.howMany-=t.nodesToHandle,t.nodesToHandle=0;else if(t.offset<=n.offset)t.nodesToHandle-=n.howMany,n.howMany=0;else if(t.offset<i){const e=i-t.offset;n.howMany-=e,t.nodesToHandle-=e}if("remove"==n.type&&(o<=n.offset?n.offset-=t.howMany:t.offset<n.offset&&(t.nodesToHandle+=n.howMany,n.howMany=0)),"attribute"==n.type)if(o<=n.offset)n.offset-=t.howMany;else if(t.offset<n.offset){const e=o-n.offset;n.offset=t.offset,n.howMany-=e}else if(t.offset<i)if(o<=i){const o=n.howMany;n.howMany=t.offset-n.offset;const i=o-n.howMany-t.nodesToHandle;e.unshift({type:"attribute",offset:t.offset,howMany:i,count:this._changeCount++})}else n.howMany-=i-t.offset}if("attribute"==t.type){if("insert"==n.type)if(t.offset<n.offset&&o>n.offset){if(o>i){const t={type:"attribute",offset:i,howMany:o-i,count:this._changeCount++};this._handleChange(t,e),e.push(t)}t.nodesToHandle=n.offset-t.offset,t.howMany=t.nodesToHandle}else t.offset>=n.offset&&t.offset<i&&(o>i?(t.nodesToHandle=o-i,t.offset=i):t.nodesToHandle=0);if("remove"==n.type&&t.offset<n.offset&&o>n.offset){const i={type:"attribute",offset:n.offset,howMany:o-n.offset,count:this._changeCount++};this._handleChange(i,e),e.push(i),t.nodesToHandle=n.offset-t.offset,t.howMany=t.nodesToHandle}"attribute"==n.type&&(t.offset>=n.offset&&o<=i?(t.nodesToHandle=0,t.howMany=0,t.offset=0):t.offset<=n.offset&&o>=i&&(n.howMany=0))}}t.howMany=t.nodesToHandle,delete t.nodesToHandle}_getInsertDiff(t,e,n){return{type:"insert",position:bl._createAt(t,e),name:n.name,attributes:new Map(n.attributes),length:1,changeCount:this._changeCount++}}_getRemoveDiff(t,e,n){return{type:"remove",position:bl._createAt(t,e),name:n.name,attributes:new Map(n.attributes),length:1,changeCount:this._changeCount++}}_getAttributesDiff(t,e,n){const o=[];n=new Map(n);for(const[i,r]of e){const e=n.has(i)?n.get(i):null;e!==r&&o.push({type:"attribute",position:t.start,range:t.clone(),length:1,attributeKey:i,attributeOldValue:r,attributeNewValue:e,changeCount:this._changeCount++}),n.delete(i)}for(const[e,i]of n)o.push({type:"attribute",position:t.start,range:t.clone(),length:1,attributeKey:e,attributeOldValue:null,attributeNewValue:i,changeCount:this._changeCount++});return o}_isInInsertedElement(t){const e=t.parent;if(!e)return!1;const n=this._changesInElement.get(e),o=t.startOffset;if(n)for(const t of n)if("insert"==t.type&&o>=t.offset&&o<t.offset+t.howMany)return!0;return this._isInInsertedElement(e)}_removeAllNestedChanges(t,e,n){const o=new vl(bl._createAt(t,e),bl._createAt(t,e+n));for(const t of o.getItems({shallow:!0}))t.is("element")&&(this._elementSnapshots.delete(t),this._changesInElement.delete(t),this._removeAllNestedChanges(t,0,t.maxOffset))}}function _d(t){const e=[];for(const n of t)if(n.is("$text"))for(let t=0;t<n.data.length;t++)e.push({name:"$text",attributes:new Map(n.getAttributes())});else e.push({name:n.name,attributes:new Map(n.getAttributes())});return e}function Ad(t,e){const n=[];let o=0,i=0;for(const t of e){if(t.offset>o){for(let e=0;e<t.offset-o;e++)n.push("e");i+=t.offset-o}if("insert"==t.type){for(let e=0;e<t.howMany;e++)n.push("i");o=t.offset+t.howMany}else if("remove"==t.type){for(let e=0;e<t.howMany;e++)n.push("r");o=t.offset,i+=t.howMany}else n.push(..."a".repeat(t.howMany).split("")),o=t.offset+t.howMany,i+=t.howMany}if(i<t)for(let e=0;e<t-i-o;e++)n.push("e");return n}function Cd(t){const e="position"in t&&"$graveyard"==t.position.root.rootName,n="range"in t&&"$graveyard"==t.range.root.rootName;return!e&&!n}class vd{constructor(){this._operations=[],this._undoPairs=new Map,this._undoneOperations=new Set,this._baseVersionToOperationIndex=new Map,this._version=0,this._gaps=new Map}get version(){return this._version}set version(t){this._operations.length&&t>this._version+1&&this._gaps.set(this._version,t),this._version=t}get lastOperation(){return this._operations[this._operations.length-1]}addOperation(t){if(t.baseVersion!==this.version)throw new b("model-document-history-addoperation-incorrect-version",this,{operation:t,historyVersion:this.version});this._operations.push(t),this._version++,this._baseVersionToOperationIndex.set(t.baseVersion,this._operations.length-1)}getOperations(t,e=this.version){if(!this._operations.length)return[];const n=this._operations[0];void 0===t&&(t=n.baseVersion);let o=e-1;for(const[e,n]of this._gaps)t>e&&t<n&&(t=n),o>e&&o<n&&(o=e-1);if(o<n.baseVersion||t>this.lastOperation.baseVersion)return[];let i=this._baseVersionToOperationIndex.get(t);void 0===i&&(i=0);let r=this._baseVersionToOperationIndex.get(o);return void 0===r&&(r=this._operations.length-1),this._operations.slice(i,r+1)}getOperation(t){const e=this._baseVersionToOperationIndex.get(t);if(void 0!==e)return this._operations[e]}setOperationAsUndone(t,e){this._undoPairs.set(e,t),this._undoneOperations.add(t)}isUndoingOperation(t){return this._undoPairs.has(t)}isUndoneOperation(t){return this._undoneOperations.has(t)}getUndoneOperation(t){return this._undoPairs.get(t)}reset(){this._version=0,this._undoPairs=new Map,this._operations=[],this._undoneOperations=new Set,this._gaps=new Map,this._baseVersionToOperationIndex=new Map}}class yd extends ml{constructor(t,e,n="main"){super(e),this._document=t,this.rootName=n}get document(){return this._document}toJSON(){return this.rootName}}yd.prototype.is=function(t,e){return e?e===this.name&&("rootElement"===t||"model:rootElement"===t||"element"===t||"model:element"===t):"rootElement"===t||"model:rootElement"===t||"element"===t||"model:element"===t||"node"===t||"model:node"===t};const xd="$graveyard";class Ed extends(T()){constructor(t){super(),this.model=t,this.history=new vd,this.selection=new Ml(this),this.roots=new Ci({idProperty:"rootName"}),this.differ=new wd(t.markers),this._postFixers=new Set,this._hasSelectionChangedFromTheLastChangeBlock=!1,this.createRoot("$root",xd),this.listenTo(t,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&this.differ.bufferOperation(n)}),{priority:"high"}),this.listenTo(t,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&this.history.addOperation(n)}),{priority:"low"}),this.listenTo(this.selection,"change",(()=>{this._hasSelectionChangedFromTheLastChangeBlock=!0})),this.listenTo(t.markers,"update",((t,e,n,o,i)=>{const r={...e.getData(),range:o};this.differ.bufferMarkerChange(e.name,i,r),null===n&&e.on("change",((t,n)=>{const o=e.getData();this.differ.bufferMarkerChange(e.name,{...o,range:n},o)}))}))}get version(){return this.history.version}set version(t){this.history.version=t}get graveyard(){return this.getRoot(xd)}createRoot(t="$root",e="main"){if(this.roots.get(e))throw new b("model-document-createroot-name-exists",this,{name:e});const n=new yd(this,t,e);return this.roots.add(n),n}destroy(){this.selection.destroy(),this.stopListening()}getRoot(t="main"){return this.roots.get(t)}getRootNames(){return Array.from(this.roots,(t=>t.rootName)).filter((t=>t!=xd))}registerPostFixer(t){this._postFixers.add(t)}toJSON(){const t=Ji(this);return t.selection="[engine.model.DocumentSelection]",t.model="[engine.model.Model]",t}_handleChangeBlock(t){this._hasDocumentChangedFromTheLastChangeBlock()&&(this._callPostFixers(t),this.selection.refresh(),this.differ.hasDataChanges()?this.fire("change:data",t.batch):this.fire("change",t.batch),this.selection.refresh(),this.differ.reset()),this._hasSelectionChangedFromTheLastChangeBlock=!1}_hasDocumentChangedFromTheLastChangeBlock(){return!this.differ.isEmpty||this._hasSelectionChangedFromTheLastChangeBlock}_getDefaultRoot(){for(const t of this.roots)if(t!==this.graveyard)return t;return this.graveyard}_getDefaultRange(){const t=this._getDefaultRoot(),e=this.model,n=e.schema,o=e.createPositionFromPath(t,[0]);return n.getNearestSelectionRange(o)||e.createRange(o)}_validateSelectionRange(t){return Td(t.start)&&Td(t.end)}_callPostFixers(t){let e=!1;do{for(const n of this._postFixers)if(this.selection.refresh(),e=n(t),e)break}while(e)}}function Td(t){const e=t.textNode;if(e){const n=e.data,o=t.offset-e.startOffset;return!Ti(n,o)&&!Di(n,o)}return!0}class Dd extends(T()){constructor(){super(),this._markers=new Map}[Symbol.iterator](){return this._markers.values()}has(t){const e=t instanceof Sd?t.name:t;return this._markers.has(e)}get(t){return this._markers.get(t)||null}_set(t,e,n=!1,o=!1){const i=t instanceof Sd?t.name:t;if(i.includes(","))throw new b("markercollection-incorrect-marker-name",this);const r=this._markers.get(i);if(r){const t=r.getData(),s=r.getRange();let a=!1;return s.isEqual(e)||(r._attachLiveRange(Vl.fromRange(e)),a=!0),n!=r.managedUsingOperations&&(r._managedUsingOperations=n,a=!0),"boolean"==typeof o&&o!=r.affectsData&&(r._affectsData=o,a=!0),a&&this.fire(`update:${i}`,r,s,e,t),r}const s=Vl.fromRange(e),a=new Sd(i,s,n,o);return this._markers.set(i,a),this.fire(`update:${i}`,a,null,e,{...a.getData(),range:null}),a}_remove(t){const e=t instanceof Sd?t.name:t,n=this._markers.get(e);return!!n&&(this._markers.delete(e),this.fire(`update:${e}`,n,n.getRange(),null,n.getData()),this._destroyMarker(n),!0)}_refresh(t){const e=t instanceof Sd?t.name:t,n=this._markers.get(e);if(!n)throw new b("markercollection-refresh-marker-not-exists",this);const o=n.getRange();this.fire(`update:${e}`,n,o,o,n.getData())}*getMarkersAtPosition(t){for(const e of this)e.getRange().containsPosition(t)&&(yield e)}*getMarkersIntersectingRange(t){for(const e of this)null!==e.getRange().getIntersection(t)&&(yield e)}destroy(){for(const t of this._markers.values())this._destroyMarker(t);this._markers=null,this.stopListening()}*getMarkersGroup(t){for(const e of this._markers.values())e.name.startsWith(t+":")&&(yield e)}_destroyMarker(t){t.stopListening(),t._detachLiveRange()}}class Sd extends(T(cl)){constructor(t,e,n,o){super(),this.name=t,this._liveRange=this._attachLiveRange(e),this._managedUsingOperations=n,this._affectsData=o}get managedUsingOperations(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._managedUsingOperations}get affectsData(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._affectsData}getData(){return{range:this.getRange(),affectsData:this.affectsData,managedUsingOperations:this.managedUsingOperations}}getStart(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._liveRange.start.clone()}getEnd(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._liveRange.end.clone()}getRange(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._liveRange.toRange()}_attachLiveRange(t){return this._liveRange&&this._detachLiveRange(),t.delegate("change:range").to(this),t.delegate("change:content").to(this),this._liveRange=t,t}_detachLiveRange(){this._liveRange.stopDelegating("change:range",this),this._liveRange.stopDelegating("change:content",this),this._liveRange.detach(),this._liveRange=null}}Sd.prototype.is=function(t){return"marker"===t||"model:marker"===t};class Bd extends Mc{constructor(t,e){super(null),this.sourcePosition=t.clone(),this.howMany=e}get type(){return"detach"}toJSON(){const t=super.toJSON();return t.sourcePosition=this.sourcePosition.toJSON(),t}_validate(){if(this.sourcePosition.root.document)throw new b("detach-operation-on-document-node",this)}_execute(){Hc(vl._createFromPositionAndShift(this.sourcePosition,this.howMany))}static get className(){return"DetachOperation"}}class Id extends cl{constructor(t){super(),this.markers=new Map,this._children=new hl,t&&this._insertChild(0,t)}[Symbol.iterator](){return this.getChildren()}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}get nextSibling(){return null}get previousSibling(){return null}get root(){return this}get parent(){return null}get document(){return null}getAncestors(){return[]}getChild(t){return this._children.getNode(t)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(t){return this._children.getNodeIndex(t)}getChildStartOffset(t){return this._children.getNodeStartOffset(t)}getPath(){return[]}getNodeByPath(t){let e=this;for(const n of t)e=e.getChild(e.offsetToIndex(n));return e}offsetToIndex(t){return this._children.offsetToIndex(t)}toJSON(){const t=[];for(const e of this._children)t.push(e.toJSON());return t}static fromJSON(t){const e=[];for(const n of t)n.name?e.push(ml.fromJSON(n)):e.push(ul.fromJSON(n));return new Id(e)}_appendChild(t){this._insertChild(this.childCount,t)}_insertChild(t,e){const n=function(t){if("string"==typeof t)return[new ul(t)];Y(t)||(t=[t]);return Array.from(t).map((t=>"string"==typeof t?new ul(t):t instanceof gl?new ul(t.data,t.getAttributes()):t))}(e);for(const t of n)null!==t.parent&&t._remove(),t.parent=this;this._children._insertNodes(t,n)}_removeChildren(t,e=1){const n=this._children._removeNodes(t,e);for(const t of n)t.parent=null;return n}}Id.prototype.is=function(t){return"documentFragment"===t||"model:documentFragment"===t};class Pd{constructor(t,e){this.model=t,this.batch=e}createText(t,e){return new ul(t,e)}createElement(t,e){return new ml(t,e)}createDocumentFragment(){return new Id}cloneElement(t,e=!0){return t._clone(e)}insert(t,e,n=0){if(this._assertWriterUsedCorrectly(),t instanceof ul&&""==t.data)return;const o=bl._createAt(e,n);if(t.parent){if(Od(t.root,o.root))return void this.move(vl._createOn(t),o);if(t.root.document)throw new b("model-writer-insert-forbidden-move",this);this.remove(t)}const i=o.root.document?o.root.document.version:null,r=new Kc(o,t,i);if(t instanceof ul&&(r.shouldReceiveAttributes=!0),this.batch.addOperation(r),this.model.applyOperation(r),t instanceof Id)for(const[e,n]of t.markers){const t=bl._createAt(n.root,0),i={range:new vl(n.start._getCombined(t,o),n.end._getCombined(t,o)),usingOperation:!0,affectsData:!0};this.model.markers.has(e)?this.updateMarker(e,i):this.addMarker(e,i)}}insertText(t,e,n,o){e instanceof Id||e instanceof ml||e instanceof bl?this.insert(this.createText(t),e,n):this.insert(this.createText(t,e),n,o)}insertElement(t,e,n,o){e instanceof Id||e instanceof ml||e instanceof bl?this.insert(this.createElement(t),e,n):this.insert(this.createElement(t,e),n,o)}append(t,e){this.insert(t,e,"end")}appendText(t,e,n){e instanceof Id||e instanceof ml?this.insert(this.createText(t),e,"end"):this.insert(this.createText(t,e),n,"end")}appendElement(t,e,n){e instanceof Id||e instanceof ml?this.insert(this.createElement(t),e,"end"):this.insert(this.createElement(t,e),n,"end")}setAttribute(t,e,n){if(this._assertWriterUsedCorrectly(),n instanceof vl){const o=n.getMinimalFlatRanges();for(const n of o)Rd(this,t,e,n)}else zd(this,t,e,n)}setAttributes(t,e){for(const[n,o]of Ei(t))this.setAttribute(n,o,e)}removeAttribute(t,e){if(this._assertWriterUsedCorrectly(),e instanceof vl){const n=e.getMinimalFlatRanges();for(const e of n)Rd(this,t,null,e)}else zd(this,t,null,e)}clearAttributes(t){this._assertWriterUsedCorrectly();const e=t=>{for(const e of t.getAttributeKeys())this.removeAttribute(e,t)};if(t instanceof vl)for(const n of t.getItems())e(n);else e(t)}move(t,e,n){if(this._assertWriterUsedCorrectly(),!(t instanceof vl))throw new b("writer-move-invalid-range",this);if(!t.isFlat)throw new b("writer-move-range-not-flat",this);const o=bl._createAt(e,n);if(o.isEqual(t.start))return;if(this._addOperationForAffectedMarkers("move",t),!Od(t.root,o.root))throw new b("writer-move-different-document",this);const i=t.root.document?t.root.document.version:null,r=new Gc(t.start,t.end.offset-t.start.offset,o,i);this.batch.addOperation(r),this.model.applyOperation(r)}remove(t){this._assertWriterUsedCorrectly();const e=(t instanceof vl?t:vl._createOn(t)).getMinimalFlatRanges().reverse();for(const t of e)this._addOperationForAffectedMarkers("move",t),Fd(t.start,t.end.offset-t.start.offset,this.batch,this.model)}merge(t){this._assertWriterUsedCorrectly();const e=t.nodeBefore,n=t.nodeAfter;if(this._addOperationForAffectedMarkers("merge",t),!(e instanceof ml))throw new b("writer-merge-no-element-before",this);if(!(n instanceof ml))throw new b("writer-merge-no-element-after",this);t.root.document?this._merge(t):this._mergeDetached(t)}createPositionFromPath(t,e,n){return this.model.createPositionFromPath(t,e,n)}createPositionAt(t,e){return this.model.createPositionAt(t,e)}createPositionAfter(t){return this.model.createPositionAfter(t)}createPositionBefore(t){return this.model.createPositionBefore(t)}createRange(t,e){return this.model.createRange(t,e)}createRangeIn(t){return this.model.createRangeIn(t)}createRangeOn(t){return this.model.createRangeOn(t)}createSelection(...t){return this.model.createSelection(...t)}_mergeDetached(t){const e=t.nodeBefore,n=t.nodeAfter;this.move(vl._createIn(n),bl._createAt(e,"end")),this.remove(n)}_merge(t){const e=bl._createAt(t.nodeBefore,"end"),n=bl._createAt(t.nodeAfter,0),o=t.root.document.graveyard,i=new bl(o,[0]),r=t.root.document.version,s=new ed(n,t.nodeAfter.maxOffset,e,i,r);this.batch.addOperation(s),this.model.applyOperation(s)}rename(t,e){if(this._assertWriterUsedCorrectly(),!(t instanceof ml))throw new b("writer-rename-not-element-instance",this);const n=t.root.document?t.root.document.version:null,o=new Xc(bl._createBefore(t),t.name,e,n);this.batch.addOperation(o),this.model.applyOperation(o)}split(t,e){this._assertWriterUsedCorrectly();let n,o,i=t.parent;if(!i.parent)throw new b("writer-split-element-no-parent",this);if(e||(e=i.parent),!t.parent.getAncestors({includeSelf:!0}).includes(e))throw new b("writer-split-invalid-limit-element",this);do{const e=i.root.document?i.root.document.version:null,r=i.maxOffset-t.offset,s=nd.getInsertionPosition(t),a=new nd(t,r,s,null,e);this.batch.addOperation(a),this.model.applyOperation(a),n||o||(n=i,o=t.parent.nextSibling),i=(t=this.createPositionAfter(t.parent)).parent}while(i!==e);return{position:t,range:new vl(bl._createAt(n,"end"),bl._createAt(o,0))}}wrap(t,e){if(this._assertWriterUsedCorrectly(),!t.isFlat)throw new b("writer-wrap-range-not-flat",this);const n=e instanceof ml?e:new ml(e);if(n.childCount>0)throw new b("writer-wrap-element-not-empty",this);if(null!==n.parent)throw new b("writer-wrap-element-attached",this);this.insert(n,t.start);const o=new vl(t.start.getShiftedBy(1),t.end.getShiftedBy(1));this.move(o,bl._createAt(n,0))}unwrap(t){if(this._assertWriterUsedCorrectly(),null===t.parent)throw new b("writer-unwrap-element-no-parent",this);this.move(vl._createIn(t),this.createPositionAfter(t)),this.remove(t)}addMarker(t,e){if(this._assertWriterUsedCorrectly(),!e||"boolean"!=typeof e.usingOperation)throw new b("writer-addmarker-no-usingoperation",this);const n=e.usingOperation,o=e.range,i=void 0!==e.affectsData&&e.affectsData;if(this.model.markers.has(t))throw new b("writer-addmarker-marker-exists",this);if(!o)throw new b("writer-addmarker-no-range",this);return n?(Vd(this,t,null,o,i),this.model.markers.get(t)):this.model.markers._set(t,o,n,i)}updateMarker(t,e){this._assertWriterUsedCorrectly();const n="string"==typeof t?t:t.name,o=this.model.markers.get(n);if(!o)throw new b("writer-updatemarker-marker-not-exists",this);if(!e)return k("writer-updatemarker-reconvert-using-editingcontroller",{markerName:n}),void this.model.markers._refresh(o);const i="boolean"==typeof e.usingOperation,r="boolean"==typeof e.affectsData,s=r?e.affectsData:o.affectsData;if(!i&&!e.range&&!r)throw new b("writer-updatemarker-wrong-options",this);const a=o.getRange(),l=e.range?e.range:a;i&&e.usingOperation!==o.managedUsingOperations?e.usingOperation?Vd(this,n,null,l,s):(Vd(this,n,a,null,s),this.model.markers._set(n,l,void 0,s)):o.managedUsingOperations?Vd(this,n,a,l,s):this.model.markers._set(n,l,void 0,s)}removeMarker(t){this._assertWriterUsedCorrectly();const e="string"==typeof t?t:t.name;if(!this.model.markers.has(e))throw new b("writer-removemarker-no-marker",this);const n=this.model.markers.get(e);if(!n.managedUsingOperations)return void this.model.markers._remove(e);Vd(this,e,n.getRange(),null,n.affectsData)}setSelection(...t){this._assertWriterUsedCorrectly(),this.model.document.selection._setTo(...t)}setSelectionFocus(t,e){this._assertWriterUsedCorrectly(),this.model.document.selection._setFocus(t,e)}setSelectionAttribute(t,e){if(this._assertWriterUsedCorrectly(),"string"==typeof t)this._setSelectionAttribute(t,e);else for(const[e,n]of Ei(t))this._setSelectionAttribute(e,n)}removeSelectionAttribute(t){if(this._assertWriterUsedCorrectly(),"string"==typeof t)this._removeSelectionAttribute(t);else for(const e of t)this._removeSelectionAttribute(e)}overrideSelectionGravity(){return this.model.document.selection._overrideGravity()}restoreSelectionGravity(t){this.model.document.selection._restoreGravity(t)}_setSelectionAttribute(t,e){const n=this.model.document.selection;if(n.isCollapsed&&n.anchor.parent.isEmpty){const o=Ml._getStoreAttributeKey(t);this.setAttribute(o,e,n.anchor.parent)}n._setAttribute(t,e)}_removeSelectionAttribute(t){const e=this.model.document.selection;if(e.isCollapsed&&e.anchor.parent.isEmpty){const n=Ml._getStoreAttributeKey(t);this.removeAttribute(n,e.anchor.parent)}e._removeAttribute(t)}_assertWriterUsedCorrectly(){if(this.model._currentWriter!==this)throw new b("writer-incorrect-use",this)}_addOperationForAffectedMarkers(t,e){for(const n of this.model.markers){if(!n.managedUsingOperations)continue;const o=n.getRange();let i=!1;if("move"===t){const t=e;i=t.containsPosition(o.start)||t.start.isEqual(o.start)||t.containsPosition(o.end)||t.end.isEqual(o.end)}else{const t=e,n=t.nodeBefore,r=t.nodeAfter,s=o.start.parent==n&&o.start.isAtEnd,a=o.end.parent==r&&0==o.end.offset,l=o.end.nodeAfter==r,c=o.start.nodeAfter==r;i=s||a||l||c}i&&this.updateMarker(n.name,{range:o})}}}function Rd(t,e,n,o){const i=t.model,r=i.document;let s,a,l,c=o.start;for(const t of o.getWalker({shallow:!0}))l=t.item.getAttribute(e),s&&a!=l&&(a!=n&&d(),c=s),s=t.nextPosition,a=l;function d(){const o=new vl(c,s),l=o.root.document?r.version:null,d=new Yc(o,e,a,n,l);t.batch.addOperation(d),i.applyOperation(d)}s instanceof bl&&s!=c&&a!=n&&d()}function zd(t,e,n,o){const i=t.model,r=i.document,s=o.getAttribute(e);let a,l;if(s!=n){if(o.root===o){const t=o.document?r.version:null;l=new td(o,e,s,n,t)}else{a=new vl(bl._createBefore(o),t.createPositionAfter(o));const i=a.root.document?r.version:null;l=new Yc(a,e,s,n,i)}t.batch.addOperation(l),i.applyOperation(l)}}function Vd(t,e,n,o,i){const r=t.model,s=r.document,a=new Zc(e,n,o,r.markers,!!i,s.version);t.batch.addOperation(a),r.applyOperation(a)}function Fd(t,e,n,o){let i;if(t.root.document){const n=o.document,r=new bl(n.graveyard,[0]);i=new Gc(t,e,r,n.version)}else i=new Bd(t,e);n.addOperation(i),o.applyOperation(i)}function Od(t,e){return t===e||t instanceof yd&&e instanceof yd}function Nd(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.selection,o=e.schema,i=[];let r=!1;for(const t of n.getRanges()){const e=Md(t,o);e&&!e.isEqual(t)?(i.push(e),r=!0):i.push(t)}r&&t.setSelection(function(t){const e=[...t],n=new Set;let o=1;for(;o<e.length;){const t=e[o],i=e.slice(0,o);for(const[r,s]of i.entries())if(!n.has(r))if(t.isEqual(s))n.add(r);else if(t.isIntersecting(s)){n.add(r),n.add(o);const i=t.getJoined(s);e.push(i)}o++}return e.filter(((t,e)=>!n.has(e)))}(i),{backward:n.isBackward});return!1}(e,t)))}function Md(t,e){return t.isCollapsed?function(t,e){const n=t.start,o=e.getNearestSelectionRange(n);if(!o){const t=n.getAncestors().reverse().find((t=>e.isObject(t)));return t?vl._createOn(t):null}if(!o.isCollapsed)return o;const i=o.start;if(n.isEqual(i))return null;return new vl(i)}(t,e):function(t,e){const{start:n,end:o}=t,i=e.checkChild(n,"$text"),r=e.checkChild(o,"$text"),s=e.getLimitElement(n),a=e.getLimitElement(o);if(s===a){if(i&&r)return null;if(function(t,e,n){const o=t.nodeAfter&&!n.isLimit(t.nodeAfter)||n.checkChild(t,"$text"),i=e.nodeBefore&&!n.isLimit(e.nodeBefore)||n.checkChild(e,"$text");return o||i}(n,o,e)){const t=n.nodeAfter&&e.isSelectable(n.nodeAfter)?null:e.getNearestSelectionRange(n,"forward"),i=o.nodeBefore&&e.isSelectable(o.nodeBefore)?null:e.getNearestSelectionRange(o,"backward"),r=t?t.start:n,s=i?i.end:o;return new vl(r,s)}}const l=s&&!s.is("rootElement"),c=a&&!a.is("rootElement");if(l||c){const t=n.nodeAfter&&o.nodeBefore&&n.nodeAfter.parent===o.nodeBefore.parent,i=l&&(!t||!Hd(n.nodeAfter,e)),r=c&&(!t||!Hd(o.nodeBefore,e));let d=n,h=o;return i&&(d=bl._createBefore(Ld(s,e))),r&&(h=bl._createAfter(Ld(a,e))),new vl(d,h)}return null}(t,e)}function Ld(t,e){let n=t,o=n;for(;e.isLimit(o)&&o.parent;)n=o,o=o.parent;return n}function Hd(t,e){return t&&e.isSelectable(t)}function qd(t,e,n={}){if(e.isCollapsed)return;const o=e.getFirstRange();if("$graveyard"==o.root.rootName)return;const i=t.schema;t.change((t=>{if(!n.doNotResetEntireContent&&function(t,e){const n=t.getLimitElement(e);if(!e.containsEntireContent(n))return!1;const o=e.getFirstRange();if(o.start.parent==o.end.parent)return!1;return t.checkChild(n,"paragraph")}(i,e))return void function(t,e){const n=t.model.schema.getLimitElement(e);t.remove(t.createRangeIn(n)),$d(t,t.createPositionAt(n,0),e)}(t,e);const r={};if(!n.doNotAutoparagraph){const t=e.getSelectedElement();t&&Object.assign(r,i.getAttributesWithProperty(t,"copyOnReplace",!0))}const[s,a]=function(t){const e=t.root.document.model,n=t.start;let o=t.end;if(e.hasContent(t,{ignoreMarkers:!0})){const n=function(t){const e=t.parent,n=e.root.document.model.schema,o=e.getAncestors({parentFirst:!0,includeSelf:!0});for(const t of o){if(n.isLimit(t))return null;if(n.isBlock(t))return t}}(o);if(n&&o.isTouching(e.createPositionAt(n,0))){const n=e.createSelection(t);e.modifySelection(n,{direction:"backward"});const i=n.getLastPosition(),r=e.createRange(i,o);e.hasContent(r,{ignoreMarkers:!0})||(o=i)}}return[pd.fromPosition(n,"toPrevious"),pd.fromPosition(o,"toNext")]}(o);s.isTouching(a)||t.remove(t.createRange(s,a)),n.leaveUnmerged||(!function(t,e,n){const o=t.model;if(!Ud(t.model.schema,e,n))return;const[i,r]=function(t,e){const n=t.getAncestors(),o=e.getAncestors();let i=0;for(;n[i]&&n[i]==o[i];)i++;return[n[i],o[i]]}(e,n);if(!i||!r)return;!o.hasContent(i,{ignoreMarkers:!0})&&o.hasContent(r,{ignoreMarkers:!0})?jd(t,e,n,i.parent):Wd(t,e,n,i.parent)}(t,s,a),i.removeDisallowedAttributes(s.parent.getChildren(),t)),Gd(t,e,s),!n.doNotAutoparagraph&&function(t,e){const n=t.checkChild(e,"$text"),o=t.checkChild(e,"paragraph");return!n&&o}(i,s)&&$d(t,s,e,r),s.detach(),a.detach()}))}function Wd(t,e,n,o){const i=e.parent,r=n.parent;if(i!=o&&r!=o){for(e=t.createPositionAfter(i),(n=t.createPositionBefore(r)).isEqual(e)||t.insert(r,e),t.merge(e);n.parent.isEmpty;){const e=n.parent;n=t.createPositionBefore(e),t.remove(e)}Ud(t.model.schema,e,n)&&Wd(t,e,n,o)}}function jd(t,e,n,o){const i=e.parent,r=n.parent;if(i!=o&&r!=o){for(e=t.createPositionAfter(i),(n=t.createPositionBefore(r)).isEqual(e)||t.insert(i,n);e.parent.isEmpty;){const n=e.parent;e=t.createPositionBefore(n),t.remove(n)}n=t.createPositionBefore(r),function(t,e){const n=e.nodeBefore,o=e.nodeAfter;n.name!=o.name&&t.rename(n,o.name);t.clearAttributes(n),t.setAttributes(Object.fromEntries(o.getAttributes()),n),t.merge(e)}(t,n),Ud(t.model.schema,e,n)&&jd(t,e,n,o)}}function Ud(t,e,n){const o=e.parent,i=n.parent;return o!=i&&(!t.isLimit(o)&&!t.isLimit(i)&&function(t,e,n){const o=new vl(t,e);for(const t of o.getWalker())if(n.isLimit(t.item))return!1;return!0}(e,n,t))}function $d(t,e,n,o={}){const i=t.createElement("paragraph");t.model.schema.setAllowedAttributes(i,o,t),t.insert(i,e),Gd(t,n,t.createPositionAt(i,0))}function Gd(t,e,n){e instanceof Ml?t.setSelection(n):e.setTo(n)}function Kd(t,e){const n=[];Array.from(t.getItems({direction:"backward"})).map((t=>e.createRangeOn(t))).filter((e=>(e.start.isAfter(t.start)||e.start.isEqual(t.start))&&(e.end.isBefore(t.end)||e.end.isEqual(t.end)))).forEach((t=>{n.push(t.start.parent),e.remove(t)})),n.forEach((t=>{let n=t;for(;n.parent&&n.isEmpty;){const t=e.createRangeOn(n);n=n.parent,e.remove(t)}}))}class Zd{constructor(t,e,n){this.model=t,this.writer=e,this.position=n,this.canMergeWith=new Set([this.position.parent]),this.schema=t.schema,this._documentFragment=e.createDocumentFragment(),this._documentFragmentPosition=e.createPositionAt(this._documentFragment,0),this._firstNode=null,this._lastNode=null,this._lastAutoParagraph=null,this._filterAttributesOf=[],this._affectedStart=null,this._affectedEnd=null}handleNodes(t){for(const e of Array.from(t))this._handleNode(e);this._insertPartialFragment(),this._lastAutoParagraph&&this._updateLastNodeFromAutoParagraph(this._lastAutoParagraph),this._mergeOnRight(),this.schema.removeDisallowedAttributes(this._filterAttributesOf,this.writer),this._filterAttributesOf=[]}_updateLastNodeFromAutoParagraph(t){const e=this.writer.createPositionAfter(this._lastNode),n=this.writer.createPositionAfter(t);if(n.isAfter(e)){if(this._lastNode=t,this.position.parent!=t||!this.position.isAtEnd)throw new b("insertcontent-invalid-insertion-position",this);this.position=n,this._setAffectedBoundaries(this.position)}}getSelectionRange(){return this._nodeToSelect?vl._createOn(this._nodeToSelect):this.model.schema.getNearestSelectionRange(this.position)}getAffectedRange(){return this._affectedStart?new vl(this._affectedStart,this._affectedEnd):null}destroy(){this._affectedStart&&this._affectedStart.detach(),this._affectedEnd&&this._affectedEnd.detach()}_handleNode(t){if(this.schema.isObject(t))return void this._handleObject(t);let e=this._checkAndAutoParagraphToAllowedPosition(t);e||(e=this._checkAndSplitToAllowedPosition(t),e)?(this._appendToFragment(t),this._firstNode||(this._firstNode=t),this._lastNode=t):this._handleDisallowedNode(t)}_insertPartialFragment(){if(this._documentFragment.isEmpty)return;const t=pd.fromPosition(this.position,"toNext");this._setAffectedBoundaries(this.position),this._documentFragment.getChild(0)==this._firstNode&&(this.writer.insert(this._firstNode,this.position),this._mergeOnLeft(),this.position=t.toPosition()),this._documentFragment.isEmpty||this.writer.insert(this._documentFragment,this.position),this._documentFragmentPosition=this.writer.createPositionAt(this._documentFragment,0),this.position=t.toPosition(),t.detach()}_handleObject(t){this._checkAndSplitToAllowedPosition(t)?this._appendToFragment(t):this._tryAutoparagraphing(t)}_handleDisallowedNode(t){t.is("element")?this.handleNodes(t.getChildren()):this._tryAutoparagraphing(t)}_appendToFragment(t){if(!this.schema.checkChild(this.position,t))throw new b("insertcontent-wrong-position",this,{node:t,position:this.position});this.writer.insert(t,this._documentFragmentPosition),this._documentFragmentPosition=this._documentFragmentPosition.getShiftedBy(t.offsetSize),this.schema.isObject(t)&&!this.schema.checkChild(this.position,"$text")?this._nodeToSelect=t:this._nodeToSelect=null,this._filterAttributesOf.push(t)}_setAffectedBoundaries(t){this._affectedStart||(this._affectedStart=pd.fromPosition(t,"toPrevious")),this._affectedEnd&&!this._affectedEnd.isBefore(t)||(this._affectedEnd&&this._affectedEnd.detach(),this._affectedEnd=pd.fromPosition(t,"toNext"))}_mergeOnLeft(){const t=this._firstNode;if(!(t instanceof ml))return;if(!this._canMergeLeft(t))return;const e=pd._createBefore(t);e.stickiness="toNext";const n=pd.fromPosition(this.position,"toNext");this._affectedStart.isEqual(e)&&(this._affectedStart.detach(),this._affectedStart=pd._createAt(e.nodeBefore,"end","toPrevious")),this._firstNode===this._lastNode&&(this._firstNode=e.nodeBefore,this._lastNode=e.nodeBefore),this.writer.merge(e),e.isEqual(this._affectedEnd)&&this._firstNode===this._lastNode&&(this._affectedEnd.detach(),this._affectedEnd=pd._createAt(e.nodeBefore,"end","toNext")),this.position=n.toPosition(),n.detach(),this._filterAttributesOf.push(this.position.parent),e.detach()}_mergeOnRight(){const t=this._lastNode;if(!(t instanceof ml))return;if(!this._canMergeRight(t))return;const e=pd._createAfter(t);if(e.stickiness="toNext",!this.position.isEqual(e))throw new b("insertcontent-invalid-insertion-position",this);this.position=bl._createAt(e.nodeBefore,"end");const n=pd.fromPosition(this.position,"toPrevious");this._affectedEnd.isEqual(e)&&(this._affectedEnd.detach(),this._affectedEnd=pd._createAt(e.nodeBefore,"end","toNext")),this._firstNode===this._lastNode&&(this._firstNode=e.nodeBefore,this._lastNode=e.nodeBefore),this.writer.merge(e),e.getShiftedBy(-1).isEqual(this._affectedStart)&&this._firstNode===this._lastNode&&(this._affectedStart.detach(),this._affectedStart=pd._createAt(e.nodeBefore,0,"toPrevious")),this.position=n.toPosition(),n.detach(),this._filterAttributesOf.push(this.position.parent),e.detach()}_canMergeLeft(t){const e=t.previousSibling;return e instanceof ml&&this.canMergeWith.has(e)&&this.model.schema.checkMerge(e,t)}_canMergeRight(t){const e=t.nextSibling;return e instanceof ml&&this.canMergeWith.has(e)&&this.model.schema.checkMerge(t,e)}_tryAutoparagraphing(t){const e=this.writer.createElement("paragraph");this._getAllowedIn(this.position.parent,e)&&this.schema.checkChild(e,t)&&(e._appendChild(t),this._handleNode(e))}_checkAndAutoParagraphToAllowedPosition(t){if(this.schema.checkChild(this.position.parent,t))return!0;if(!this.schema.checkChild(this.position.parent,"paragraph")||!this.schema.checkChild("paragraph",t))return!1;this._insertPartialFragment();const e=this.writer.createElement("paragraph");return this.writer.insert(e,this.position),this._setAffectedBoundaries(this.position),this._lastAutoParagraph=e,this.position=this.writer.createPositionAt(e,0),!0}_checkAndSplitToAllowedPosition(t){const e=this._getAllowedIn(this.position.parent,t);if(!e)return!1;for(e!=this.position.parent&&this._insertPartialFragment();e!=this.position.parent;)if(this.position.isAtStart){const t=this.position.parent;this.position=this.writer.createPositionBefore(t),t.isEmpty&&t.parent===e&&this.writer.remove(t)}else if(this.position.isAtEnd)this.position=this.writer.createPositionAfter(this.position.parent);else{const t=this.writer.createPositionAfter(this.position.parent);this._setAffectedBoundaries(this.position),this.writer.split(this.position),this.position=t,this.canMergeWith.add(this.position.nodeAfter)}return!0}_getAllowedIn(t,e){return this.schema.checkChild(t,e)?t:this.schema.isLimit(t)?null:this._getAllowedIn(t.parent,e)}}function Jd(t,e,n="auto"){const o=t.getSelectedElement();if(o&&e.schema.isObject(o)&&!e.schema.isInline(o))return"before"==n||"after"==n?e.createRange(e.createPositionAt(o,n)):e.createRangeOn(o);const i=vi(t.getSelectedBlocks());if(!i)return e.createRange(t.focus);if(i.isEmpty)return e.createRange(e.createPositionAt(i,0));const r=e.createPositionAfter(i);return t.focus.isTouching(r)?e.createRange(r):e.createRange(e.createPositionBefore(i))}function Yd(t,e,n,o,i={}){if(!t.schema.isObject(e))throw new b("insertobject-element-not-an-object",t,{object:e});let r;r=n?n instanceof Bl||n instanceof Ml?n:t.createSelection(n,o):t.document.selection;let s=r;i.findOptimalPosition&&t.schema.isBlock(e)&&(s=t.createSelection(Jd(r,t,i.findOptimalPosition)));const a=vi(r.getSelectedBlocks()),l={};return a&&Object.assign(l,t.schema.getAttributesWithProperty(a,"copyOnReplace",!0)),t.change((n=>{s.isCollapsed||t.deleteContent(s,{doNotAutoparagraph:!0});let o=e;const r=s.anchor.parent;!t.schema.checkChild(r,e)&&t.schema.checkChild(r,"paragraph")&&t.schema.checkChild("paragraph",e)&&(o=n.createElement("paragraph"),n.insert(e,o)),t.schema.setAllowedAttributes(o,l,n);const a=t.insertContent(o,s);return a.isCollapsed||i.setSelection&&function(t,e,n,o){const i=t.model;if("on"==n)return void t.setSelection(e,"on");if("after"!=n)throw new b("insertobject-invalid-place-parameter-value",i);let r=e.nextSibling;if(i.schema.isInline(e))return void t.setSelection(e,"after");r&&i.schema.checkChild(r,"$text")||!i.schema.checkChild(e.parent,"paragraph")||(r=t.createElement("paragraph"),i.schema.setAllowedAttributes(r,o,t),i.insertContent(r,t.createPositionAfter(e)));r&&t.setSelection(r,0)}(n,e,i.setSelection,l),a}))}function Qd(t,e){const{isForward:n,walker:o,unit:i,schema:r,treatEmojiAsSingleUnit:s}=t,{type:a,item:l,nextPosition:c}=e;if("text"==a)return"word"===t.unit?function(t,e){let n=t.position.textNode;n||(n=e?t.position.nodeAfter:t.position.nodeBefore);for(;n&&n.is("$text");){const o=t.position.offset-n.startOffset;if(eh(n,o,e))n=e?t.position.nodeAfter:t.position.nodeBefore;else{if(th(n.data,o,e))break;t.next()}}return t.position}(o,n):function(t,e,n){const o=t.position.textNode;if(o){const i=o.data;let r=t.position.offset-o.startOffset;for(;Ti(i,r)||"character"==e&&Di(i,r)||n&&Bi(i,r);)t.next(),r=t.position.offset-o.startOffset}return t.position}(o,i,s);if(a==(n?"elementStart":"elementEnd")){if(r.isSelectable(l))return bl._createAt(l,n?"after":"before");if(r.checkChild(c,"$text"))return c}else{if(r.isLimit(l))return void o.skip((()=>!0));if(r.checkChild(c,"$text"))return c}}function Xd(t,e){const n=t.root,o=bl._createAt(n,e?"end":0);return e?new vl(t,o):new vl(o,t)}function th(t,e,n){const o=e+(n?0:-1);return' ,.?!:;"-()'.includes(t.charAt(o))}function eh(t,e,n){return e===(n?t.offsetSize:0)}class nh extends(q()){constructor(){super(),this.markers=new Dd,this.document=new Ed(this),this.schema=new bc,this._pendingChanges=[],this._currentWriter=null,["insertContent","insertObject","deleteContent","modifySelection","getSelectedContent","applyOperation"].forEach((t=>this.decorate(t))),this.on("applyOperation",((t,e)=>{e[0]._validate()}),{priority:"highest"}),this.schema.register("$root",{isLimit:!0}),this.schema.register("$container",{allowIn:["$root","$container"]}),this.schema.register("$block",{allowIn:["$root","$container"],isBlock:!0}),this.schema.register("$blockObject",{allowWhere:"$block",isBlock:!0,isObject:!0}),this.schema.register("$inlineObject",{allowWhere:"$text",allowAttributesOf:"$text",isInline:!0,isObject:!0}),this.schema.register("$text",{allowIn:"$block",isInline:!0,isContent:!0}),this.schema.register("$clipboardHolder",{allowContentOf:"$root",allowChildren:"$text",isLimit:!0}),this.schema.register("$documentFragment",{allowContentOf:"$root",allowChildren:"$text",isLimit:!0}),this.schema.register("$marker"),this.schema.addChildCheck(((t,e)=>{if("$marker"===e.name)return!0})),Nd(this),this.document.registerPostFixer(oc)}change(t){try{return 0===this._pendingChanges.length?(this._pendingChanges.push({batch:new kd,callback:t}),this._runPendingChanges()[0]):t(this._currentWriter)}catch(t){b.rethrowUnexpectedError(t,this)}}enqueueChange(t,e){try{t?"function"==typeof t?(e=t,t=new kd):t instanceof kd||(t=new kd(t)):t=new kd,this._pendingChanges.push({batch:t,callback:e}),1==this._pendingChanges.length&&this._runPendingChanges()}catch(t){b.rethrowUnexpectedError(t,this)}}applyOperation(t){t._execute()}insertContent(t,e,n){return function(t,e,n,o){return t.change((i=>{let r;r=n?n instanceof Bl||n instanceof Ml?n:i.createSelection(n,o):t.document.selection,r.isCollapsed||t.deleteContent(r,{doNotAutoparagraph:!0});const s=new Zd(t,i,r.anchor),a=[];let l;if(e.is("documentFragment")){if(e.markers.size){const t=[];for(const[n,o]of e.markers){const{start:e,end:i}=o,r=e.isEqual(i);t.push({position:e,name:n,isCollapsed:r},{position:i,name:n,isCollapsed:r})}t.sort((({position:t},{position:e})=>t.isBefore(e)?1:-1));for(const{position:n,name:o,isCollapsed:r}of t){let t=null,s=null;const l=n.parent===e&&n.isAtStart,c=n.parent===e&&n.isAtEnd;l||c?r&&(s=l?"start":"end"):(t=i.createElement("$marker"),i.insert(t,n)),a.push({name:o,element:t,collapsed:s})}}l=e.getChildren()}else l=[e];s.handleNodes(l);let c=s.getSelectionRange();if(e.is("documentFragment")&&a.length){const t=c?Vl.fromRange(c):null,e={};for(let t=a.length-1;t>=0;t--){const{name:n,element:o,collapsed:r}=a[t],l=!e[n];if(l&&(e[n]=[]),o){const t=i.createPositionAt(o,"before");e[n].push(t),i.remove(o)}else{const t=s.getAffectedRange();if(!t){r&&e[n].push(s.position);continue}r?e[n].push(t[r]):e[n].push(l?t.start:t.end)}}for(const[t,[n,o]]of Object.entries(e))n&&o&&n.root===o.root&&i.addMarker(t,{usingOperation:!0,affectsData:!0,range:new vl(n,o)});t&&(c=t.toRange(),t.detach())}c&&(r instanceof Ml?i.setSelection(c):r.setTo(c));const d=s.getAffectedRange()||t.createRange(r.anchor);return s.destroy(),d}))}(this,t,e,n)}insertObject(t,e,n,o){return Yd(this,t,e,n,o)}deleteContent(t,e){qd(this,t,e)}modifySelection(t,e){!function(t,e,n={}){const o=t.schema,i="backward"!=n.direction,r=n.unit?n.unit:"character",s=!!n.treatEmojiAsSingleUnit,a=e.focus,l=new pl({boundaries:Xd(a,i),singleCharacters:!0,direction:i?"forward":"backward"}),c={walker:l,schema:o,isForward:i,unit:r,treatEmojiAsSingleUnit:s};let d;for(;d=l.next();){if(d.done)return;const n=Qd(c,d.value);if(n)return void(e instanceof Ml?t.change((t=>{t.setSelectionFocus(n)})):e.setFocus(n))}}(this,t,e)}getSelectedContent(t){return function(t,e){return t.change((t=>{const n=t.createDocumentFragment(),o=e.getFirstRange();if(!o||o.isCollapsed)return n;const i=o.start.root,r=o.start.getCommonPath(o.end),s=i.getNodeByPath(r);let a;a=o.start.parent==o.end.parent?o:t.createRange(t.createPositionAt(s,o.start.path[r.length]),t.createPositionAt(s,o.end.path[r.length]+1));const l=a.end.offset-a.start.offset;for(const e of a.getItems({shallow:!0}))e.is("$textProxy")?t.appendText(e.data,e.getAttributes(),n):t.append(t.cloneElement(e,!0),n);if(a!=o){const e=o._getTransformedByMove(a.start,t.createPositionAt(n,0),l)[0],i=t.createRange(t.createPositionAt(n,0),e.start);Kd(t.createRange(e.end,t.createPositionAt(n,"end")),t),Kd(i,t)}return n}))}(this,t)}hasContent(t,e={}){const n=t instanceof vl?t:vl._createIn(t);if(n.isCollapsed)return!1;const{ignoreWhitespaces:o=!1,ignoreMarkers:i=!1}=e;if(!i)for(const t of this.markers.getMarkersIntersectingRange(n))if(t.affectsData)return!0;for(const t of n.getItems())if(this.schema.isContent(t)){if(!t.is("$textProxy"))return!0;if(!o)return!0;if(-1!==t.data.search(/\S/))return!0}return!1}createPositionFromPath(t,e,n){return new bl(t,e,n)}createPositionAt(t,e){return bl._createAt(t,e)}createPositionAfter(t){return bl._createAfter(t)}createPositionBefore(t){return bl._createBefore(t)}createRange(t,e){return new vl(t,e)}createRangeIn(t){return vl._createIn(t)}createRangeOn(t){return vl._createOn(t)}createSelection(...t){return new Bl(...t)}createBatch(t){return new kd(t)}createOperationFromJSON(t){return class{static fromJSON(t,e){return od[t.__className].fromJSON(t,e)}}.fromJSON(t,this.document)}destroy(){this.document.destroy(),this.stopListening()}_runPendingChanges(){const t=[];this.fire("_beforeChanges");try{for(;this._pendingChanges.length;){const e=this._pendingChanges[0].batch;this._currentWriter=new Pd(this,e);const n=this._pendingChanges[0].callback(this._currentWriter);t.push(n),this.document._handleChangeBlock(this._currentWriter),this._pendingChanges.shift(),this._currentWriter=null}}finally{this._pendingChanges.length=0,this._currentWriter=null,this.fire("_afterChanges")}return t}}class oh extends fa{constructor(t){super(t),this.domEventType="click"}onDomEvent(t){this.fire(t.type,t)}}class ih extends fa{constructor(t){super(t),this.domEventType=["mousedown","mouseup","mouseover","mouseout"]}onDomEvent(t){this.fire(t.type,t)}}class rh{constructor(t){this.document=t}createDocumentFragment(t){return new Bs(this.document,t)}createElement(t,e,n){return new Xr(this.document,t,e,n)}createText(t){return new Qi(this.document,t)}clone(t,e=!1){return t._clone(e)}appendChild(t,e){return e._appendChild(t)}insertChild(t,e,n){return n._insertChild(t,e)}removeChildren(t,e,n){return n._removeChildren(t,e)}remove(t){const e=t.parent;return e?this.removeChildren(e.getChildIndex(t),1,e):[]}replace(t,e){const n=t.parent;if(n){const o=n.getChildIndex(t);return this.removeChildren(o,1,n),this.insertChild(o,e,n),!0}return!1}unwrapElement(t){const e=t.parent;if(e){const n=e.getChildIndex(t);this.remove(t),this.insertChild(n,t.getChildren(),e)}}rename(t,e){const n=new 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b("ui-view-render-already-rendered",this);this.template&&(this.element=this.template.render(),this.registerChild(this.template.getViews())),this.isRendered=!0}destroy(){this.stopListening(),this._viewCollections.map((t=>t.destroy())),this.template&&this.template._revertData&&this.template.revert(this.element)}}var Au=n(8793),Cu={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Au.Z,Cu);Au.Z.locals;const vu=jo("px"),yu=Po.document.body;class xu extends _u{constructor(t){super(t);const e=this.bindTemplate;this.set("top",0),this.set("left",0),this.set("position","arrow_nw"),this.set("isVisible",!1),this.set("withArrow",!0),this.set("class",void 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e=Eu(t.target),n=t.limiter?Eu(t.limiter):yu;this.listenTo(Po.document,"scroll",((o,i)=>{const r=i.target,s=e&&r.contains(e),a=n&&r.contains(n);!s&&!a&&e&&n||this.attachTo(t)}),{useCapture:!0}),this.listenTo(Po.window,"resize",(()=>{this.attachTo(t)}))}_stopPinning(){this.stopListening(Po.document,"scroll"),this.stopListening(Po.window,"resize")}}function Eu(t){return Ao(t)?t:Vo(t)?t.commonAncestorContainer:"function"==typeof t?Eu(t()):null}function 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r(t,e){return t.top-e.height-n}function s(t){return t.bottom+n}}xu.arrowSideOffset=25,xu.arrowHeightOffset=10,xu.stickyVerticalOffset=20,xu._getOptimalPosition=Zo,xu.defaultPositions=Tu();var Du=n(3332),Su={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Du.Z,Su);Du.Z.locals;const Bu="ck-tooltip";class Iu extends(Do()){constructor(t){if(super(),Iu._editors.add(t),Iu._instance)return Iu._instance;Iu._instance=this,this.tooltipTextView=new _u(t.locale),this.tooltipTextView.set("text",""),this.tooltipTextView.setTemplate({tag:"span",attributes:{class:["ck","ck-tooltip__text"]},children:[{text:this.tooltipTextView.bindTemplate.to("text")}]}),this.balloonPanelView=new xu(t.locale),this.balloonPanelView.class=Bu,this.balloonPanelView.content.add(this.tooltipTextView),this._resizeObserver=null,this._currentElementWithTooltip=null,this._currentTooltipPosition=null,this._pinTooltipDebounced=Ba(this._pinTooltip,600),this.listenTo(Po.document,"mouseenter",this._onEnterOrFocus.bind(this),{useCapture:!0}),this.listenTo(Po.document,"mouseleave",this._onLeaveOrBlur.bind(this),{useCapture:!0}),this.listenTo(Po.document,"focus",this._onEnterOrFocus.bind(this),{useCapture:!0}),this.listenTo(Po.document,"blur",this._onLeaveOrBlur.bind(this),{useCapture:!0}),this.listenTo(Po.document,"scroll",this._onScroll.bind(this),{useCapture:!0}),this._watchdogExcluded=!0}destroy(t){const e=t.ui.view&&t.ui.view.body;Iu._editors.delete(t),this.stopListening(t.ui),e&&e.has(this.balloonPanelView)&&e.remove(this.balloonPanelView),Iu._editors.size||(this._unpinTooltip(),this.balloonPanelView.destroy(),this.stopListening(),Iu._instance=null)}static getPositioningFunctions(t){const e=Iu.defaultBalloonPositions;return{s:[e.southArrowNorth,e.southArrowNorthEast,e.southArrowNorthWest],n:[e.northArrowSouth],e:[e.eastArrowWest],w:[e.westArrowEast],sw:[e.southArrowNorthEast],se:[e.southArrowNorthWest]}[t]}_onEnterOrFocus(t,{target:e}){const n=Pu(e);var o;n&&(n!==this._currentElementWithTooltip&&(this._unpinTooltip(),this._pinTooltipDebounced(n,{text:(o=n).dataset.ckeTooltipText,position:o.dataset.ckeTooltipPosition||"s",cssClass:o.dataset.ckeTooltipClass||""})))}_onLeaveOrBlur(t,{target:e,relatedTarget:n}){if("mouseleave"===t.name){if(!Ao(e))return;if(this._currentElementWithTooltip&&e!==this._currentElementWithTooltip)return;const t=Pu(e),o=Pu(n);t&&t!==o&&this._unpinTooltip()}else{if(this._currentElementWithTooltip&&e!==this._currentElementWithTooltip)return;this._unpinTooltip()}}_onScroll(t,{target:e}){this._currentElementWithTooltip&&(e.contains(this.balloonPanelView.element)&&e.contains(this._currentElementWithTooltip)||this._unpinTooltip())}_pinTooltip(t,{text:e,position:n,cssClass:o}){const i=vi(Iu._editors.values()).ui.view.body;i.has(this.balloonPanelView)||i.add(this.balloonPanelView),this.tooltipTextView.text=e,this.balloonPanelView.pin({target:t,positions:Iu.getPositioningFunctions(n)}),this._resizeObserver=new qo(t,(()=>{Ko(t)||this._unpinTooltip()})),this.balloonPanelView.class=[Bu,o].filter((t=>t)).join(" ");for(const t of Iu._editors)this.listenTo(t.ui,"update",this._updateTooltipPosition.bind(this),{priority:"low"});this._currentElementWithTooltip=t,this._currentTooltipPosition=n}_unpinTooltip(){this._pinTooltipDebounced.cancel(),this.balloonPanelView.unpin();for(const t of Iu._editors)this.stopListening(t.ui,"update");this._currentElementWithTooltip=null,this._currentTooltipPosition=null,this._resizeObserver&&this._resizeObserver.destroy()}_updateTooltipPosition(){Ko(this._currentElementWithTooltip)?this.balloonPanelView.pin({target:this._currentElementWithTooltip,positions:Iu.getPositioningFunctions(this._currentTooltipPosition)}):this._unpinTooltip()}}function Pu(t){return Ao(t)?t.closest("[data-cke-tooltip-text]:not([data-cke-tooltip-disabled])"):null}Iu.defaultBalloonPositions=Tu({heightOffset:5,sideOffset:13}),Iu._editors=new Set,Iu._instance=null;class Ru extends(q()){constructor(t){super(),this.editor=t,this.componentFactory=new Kh(t),this.focusTracker=new yi,this.tooltipManager=new Iu(t),this.set("viewportOffset",this._readViewportOffsetFromConfig()),this.isReady=!1,this.once("ready",(()=>{this.isReady=!0})),this._editableElementsMap=new Map,this._focusableToolbarDefinitions=[],this.listenTo(t.editing.view.document,"layoutChanged",(()=>this.update())),this._initFocusTracking()}get element(){return null}update(){this.fire("update")}destroy(){this.stopListening(),this.focusTracker.destroy(),this.tooltipManager.destroy(this.editor);for(const t of this._editableElementsMap.values())t.ckeditorInstance=null;this._editableElementsMap=new Map,this._focusableToolbarDefinitions=[]}setEditableElement(t,e){this._editableElementsMap.set(t,e),e.ckeditorInstance||(e.ckeditorInstance=this.editor),this.focusTracker.add(e);const n=()=>{this.editor.editing.view.getDomRoot(t)||this.editor.keystrokes.listenTo(e)};this.isReady?n():this.once("ready",n)}getEditableElement(t="main"){return this._editableElementsMap.get(t)}getEditableElementsNames(){return this._editableElementsMap.keys()}addToolbar(t,e={}){t.isRendered?(this.focusTracker.add(t.element),this.editor.keystrokes.listenTo(t.element)):t.once("render",(()=>{this.focusTracker.add(t.element),this.editor.keystrokes.listenTo(t.element)})),this._focusableToolbarDefinitions.push({toolbarView:t,options:e})}get _editableElements(){return console.warn("editor-ui-deprecated-editable-elements: The EditorUI#_editableElements property has been deprecated and will be removed in the near future.",{editorUI:this}),this._editableElementsMap}_readViewportOffsetFromConfig(){const t=this.editor,e=t.config.get("ui.viewportOffset");if(e)return e;const n=t.config.get("toolbar.viewportTopOffset");return n?(console.warn("editor-ui-deprecated-viewport-offset-config: The `toolbar.vieportTopOffset` configuration option is deprecated. 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ju({keystrokeHandler:t,focusTracker:e,gridItems:n,numberOfColumns:o,uiLanguageDirection:i}){const r="number"==typeof o?()=>o:o;function s(t){return o=>{const i=n.find((t=>t.element===e.focusedElement)),r=n.getIndex(i),s=t(r,n);n.get(s).focus(),o.stopPropagation(),o.preventDefault()}}function a(t,e){return t===e-1?0:t+1}function l(t,e){return 0===t?e-1:t-1}t.set("arrowright",s(((t,e)=>"rtl"===i?l(t,e.length):a(t,e.length)))),t.set("arrowleft",s(((t,e)=>"rtl"===i?a(t,e.length):l(t,e.length)))),t.set("arrowup",s(((t,e)=>{let n=t-r();return n<0&&(n=t+r()*Math.floor(e.length/r()),n>e.length-1&&(n-=r())),n}))),t.set("arrowdown",s(((t,e)=>{let n=t+r();return n>e.length-1&&(n=t%r()),n})))}class Uu extends Jh{constructor(t,e=[]){super(e),this.locale=t}attachToDom(){this._bodyCollectionContainer=new Yh({tag:"div",attributes:{class:["ck","ck-reset_all","ck-body","ck-rounded-corners"],dir:this.locale.uiLanguageDirection},children:this}).render();let 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yi,this.setTemplate({tag:"div",attributes:{class:["ck","ck-splitbutton",e.to("class"),e.if("isVisible","ck-hidden",(t=>!t)),this.arrowView.bindTemplate.if("isOn","ck-splitbutton_open")]},children:this.children})}render(){super.render(),this.children.add(this.actionView),this.children.add(this.arrowView),this.focusTracker.add(this.actionView.element),this.focusTracker.add(this.arrowView.element),this.keystrokes.listenTo(this.element),this.keystrokes.set("arrowright",((t,e)=>{this.focusTracker.focusedElement===this.actionView.element&&(this.arrowView.focus(),e())})),this.keystrokes.set("arrowleft",((t,e)=>{this.focusTracker.focusedElement===this.arrowView.element&&(this.actionView.focus(),e())}))}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this.actionView.focus()}_createActionView(){const t=new Yu;return t.bind("icon","isEnabled","isOn","isToggleable","keystroke","label","tabindex","tooltip","tooltipPosition","type","withText").to(this),t.extendTemplate({attributes:{class:"ck-splitbutton__action"}}),t.delegate("execute").to(this),t}_createArrowView(){const t=new Yu,e=t.bindTemplate;return t.icon=lg,t.extendTemplate({attributes:{class:["ck-splitbutton__arrow"],"data-cke-tooltip-disabled":e.to("isOn"),"aria-haspopup":!0,"aria-expanded":e.to("isOn",(t=>String(t)))}}),t.bind("isEnabled").to(this),t.bind("label").to(this),t.bind("tooltip").to(this),t.delegate("execute").to(this,"open"),t}}class gg extends _u{constructor(t){super(t);const e=this.bindTemplate;this.set("isVisible",!1),this.set("position","se"),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-reset","ck-dropdown__panel",e.to("position",(t=>`ck-dropdown__panel_${t}`)),e.if("isVisible","ck-dropdown__panel-visible")]},children:this.children,on:{selectstart:e.to((t=>t.preventDefault()))}})}focus(){if(this.children.length){const t=this.children.first;"function"==typeof t.focus?t.focus():k("ui-dropdown-panel-focus-child-missing-focus",{childView:this.children.first,dropdownPanel:this})}}focusLast(){if(this.children.length){const t=this.children.last;"function"==typeof t.focusLast?t.focusLast():t.focus()}}}var mg=n(5485),pg={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(mg.Z,pg);mg.Z.locals;class fg extends _u{constructor(t,e,n){super(t);const o=this.bindTemplate;this.buttonView=e,this.panelView=n,this.set("isOpen",!1),this.set("isEnabled",!0),this.set("class",void 0),this.set("id",void 0),this.set("panelPosition","auto"),this.keystrokes=new xi,this.focusTracker=new yi,this.setTemplate({tag:"div",attributes:{class:["ck","ck-dropdown",o.to("class"),o.if("isEnabled","ck-disabled",(t=>!t))],id:o.to("id"),"aria-describedby":o.to("ariaDescribedById")},children:[e,n]}),e.extendTemplate({attributes:{class:["ck-dropdown__button"],"data-cke-tooltip-disabled":o.to("isOpen")}})}render(){super.render(),this.focusTracker.add(this.buttonView.element),this.focusTracker.add(this.panelView.element),this.listenTo(this.buttonView,"open",(()=>{this.isOpen=!this.isOpen})),this.panelView.bind("isVisible").to(this,"isOpen"),this.on("change:isOpen",((t,e,n)=>{n&&("auto"===this.panelPosition?this.panelView.position=fg._getOptimalPosition({element:this.panelView.element,target:this.buttonView.element,fitInViewport:!0,positions:this._panelPositions}).name:this.panelView.position=this.panelPosition)})),this.keystrokes.listenTo(this.element);const t=(t,e)=>{this.isOpen&&(this.isOpen=!1,e())};this.keystrokes.set("arrowdown",((t,e)=>{this.buttonView.isEnabled&&!this.isOpen&&(this.isOpen=!0,e())})),this.keystrokes.set("arrowright",((t,e)=>{this.isOpen&&e()})),this.keystrokes.set("arrowleft",t),this.keystrokes.set("esc",t)}focus(){this.buttonView.focus()}get _panelPositions(){const{south:t,north:e,southEast:n,southWest:o,northEast:i,northWest:r,southMiddleEast:s,southMiddleWest:a,northMiddleEast:l,northMiddleWest:c}=fg.defaultPanelPositions;return"rtl"!==this.locale.uiLanguageDirection?[n,o,s,a,t,i,r,l,c,e]:[o,n,a,s,t,r,i,c,l,e]}}fg.defaultPanelPositions={south:(t,e)=>({top:t.bottom,left:t.left-(e.width-t.width)/2,name:"s"}),southEast:t=>({top:t.bottom,left:t.left,name:"se"}),southWest:(t,e)=>({top:t.bottom,left:t.left-e.width+t.width,name:"sw"}),southMiddleEast:(t,e)=>({top:t.bottom,left:t.left-(e.width-t.width)/4,name:"sme"}),southMiddleWest:(t,e)=>({top:t.bottom,left:t.left-3*(e.width-t.width)/4,name:"smw"}),north:(t,e)=>({top:t.top-e.height,left:t.left-(e.width-t.width)/2,name:"n"}),northEast:(t,e)=>({top:t.top-e.height,left:t.left,name:"ne"}),northWest:(t,e)=>({top:t.top-e.height,left:t.left-e.width+t.width,name:"nw"}),northMiddleEast:(t,e)=>({top:t.top-e.height,left:t.left-(e.width-t.width)/4,name:"nme"}),northMiddleWest:(t,e)=>({top:t.top-e.height,left:t.left-3*(e.width-t.width)/4,name:"nmw"})},fg._getOptimalPosition=Zo;class bg{constructor(t){if(this.focusables=t.focusables,this.focusTracker=t.focusTracker,this.keystrokeHandler=t.keystrokeHandler,this.actions=t.actions,t.actions&&t.keystrokeHandler)for(const e in t.actions){let n=t.actions[e];"string"==typeof n&&(n=[n]);for(const o of n)t.keystrokeHandler.set(o,((t,n)=>{this[e](),n()}))}}get first(){return this.focusables.find(kg)||null}get last(){return this.focusables.filter(kg).slice(-1)[0]||null}get next(){return this._getFocusableItem(1)}get previous(){return this._getFocusableItem(-1)}get current(){let t=null;return null===this.focusTracker.focusedElement?null:(this.focusables.find(((e,n)=>{const o=e.element===this.focusTracker.focusedElement;return o&&(t=n),o})),t)}focusFirst(){this._focus(this.first)}focusLast(){this._focus(this.last)}focusNext(){this._focus(this.next)}focusPrevious(){this._focus(this.previous)}_focus(t){t&&t.focus()}_getFocusableItem(t){const e=this.current,n=this.focusables.length;if(!n)return null;if(null===e)return this[1===t?"first":"last"];let o=(e+n+t)%n;do{const e=this.focusables.get(o);if(kg(e))return e;o=(o+n+t)%n}while(o!==e);return null}}function kg(t){return!(!t.focus||!Ko(t.element))}class wg extends _u{constructor(t){super(t),this.setTemplate({tag:"span",attributes:{class:["ck","ck-toolbar__separator"]}})}}class _g extends _u{constructor(t){super(t),this.setTemplate({tag:"span",attributes:{class:["ck","ck-toolbar__line-break"]}})}}function Ag(t){return Array.isArray(t)?{items:t,removeItems:[]}:t?Object.assign({items:[],removeItems:[]},t):{items:[],removeItems:[]}}var Cg=n(5542),vg={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Cg.Z,vg);Cg.Z.locals;const{threeVerticalDots:yg}=Lu,xg={alignLeft:Lu.alignLeft,bold:Lu.bold,importExport:Lu.importExport,paragraph:Lu.paragraph,plus:Lu.plus,text:Lu.text,threeVerticalDots:Lu.threeVerticalDots};class Eg extends _u{constructor(t,e){super(t);const n=this.bindTemplate,o=this.t;this.options=e||{},this.set("ariaLabel",o("Editor toolbar")),this.set("maxWidth","auto"),this.items=this.createCollection(),this.focusTracker=new yi,this.keystrokes=new xi,this.set("class",void 0),this.set("isCompact",!1),this.itemsView=new Tg(t),this.children=this.createCollection(),this.children.add(this.itemsView),this.focusables=this.createCollection();const i="rtl"===t.uiLanguageDirection;this._focusCycler=new bg({focusables:this.focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:[i?"arrowright":"arrowleft","arrowup"],focusNext:[i?"arrowleft":"arrowright","arrowdown"]}});const r=["ck","ck-toolbar",n.to("class"),n.if("isCompact","ck-toolbar_compact")];var s;this.options.shouldGroupWhenFull&&this.options.isFloating&&r.push("ck-toolbar_floating"),this.setTemplate({tag:"div",attributes:{class:r,role:"toolbar","aria-label":n.to("ariaLabel"),style:{maxWidth:n.to("maxWidth")}},children:this.children,on:{mousedown:(s=this,s.bindTemplate.to((t=>{t.target===s.element&&t.preventDefault()})))}}),this._behavior=this.options.shouldGroupWhenFull?new Sg(this):new Dg(this)}render(){super.render();for(const t of this.items)this.focusTracker.add(t.element);this.items.on("add",((t,e)=>{this.focusTracker.add(e.element)})),this.items.on("remove",((t,e)=>{this.focusTracker.remove(e.element)})),this.keystrokes.listenTo(this.element),this._behavior.render(this)}destroy(){return this._behavior.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy(),super.destroy()}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}fillFromConfig(t,e,n){const o=Ag(t),i=n||o.removeItems,r=this._cleanItemsConfiguration(o.items,e,i).map((t=>V(t)?this._createNestedToolbarDropdown(t,e,i):"|"===t?new wg:"-"===t?new _g:e.create(t))).filter((t=>!!t));this.items.addMany(r)}_cleanItemsConfiguration(t,e,n){const o=t.filter(((t,o,i)=>"|"===t||-1===n.indexOf(t)&&("-"===t?!this.options.shouldGroupWhenFull||(k("toolbarview-line-break-ignored-when-grouping-items",i),!1):!(!V(t)&&!e.has(t))||(k("toolbarview-item-unavailable",{item:t}),!1))));return this._cleanSeparatorsAndLineBreaks(o)}_cleanSeparatorsAndLineBreaks(t){const e=t=>"-"!==t&&"|"!==t,n=t.length,o=t.findIndex(e);if(-1===o)return[];const i=n-t.slice().reverse().findIndex(e);return t.slice(o,i).filter(((t,n,o)=>{if(e(t))return!0;return!(n>0&&o[n-1]===t)}))}_createNestedToolbarDropdown(t,e,n){let{label:o,icon:i,items:r,tooltip:s=!0,withText:a=!1}=t;if(r=this._cleanItemsConfiguration(r,e,n),!r.length)return null;const l=Mg(this.locale);return o||k("toolbarview-nested-toolbar-dropdown-missing-label",t),l.class="ck-toolbar__nested-toolbar-dropdown",l.buttonView.set({label:o,tooltip:s,withText:!!a}),!1!==i?l.buttonView.icon=xg[i]||i||yg:l.buttonView.withText=!0,Lg(l,[]),l.toolbarView.fillFromConfig(r,e,n),l}}class Tg extends _u{constructor(t){super(t),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-toolbar__items"]},children:this.children})}}class Dg{constructor(t){const e=t.bindTemplate;t.set("isVertical",!1),t.itemsView.children.bindTo(t.items).using((t=>t)),t.focusables.bindTo(t.items).using((t=>t)),t.extendTemplate({attributes:{class:[e.if("isVertical","ck-toolbar_vertical")]}})}render(){}destroy(){}}class Sg{constructor(t){this.view=t,this.viewChildren=t.children,this.viewFocusables=t.focusables,this.viewItemsView=t.itemsView,this.viewFocusTracker=t.focusTracker,this.viewLocale=t.locale,this.ungroupedItems=t.createCollection(),this.groupedItems=t.createCollection(),this.groupedItemsDropdown=this._createGroupedItemsDropdown(),this.resizeObserver=null,this.cachedPadding=null,this.shouldUpdateGroupingOnNextResize=!1,t.itemsView.children.bindTo(this.ungroupedItems).using((t=>t)),this.ungroupedItems.on("change",this._updateFocusCycleableItems.bind(this)),t.children.on("change",this._updateFocusCycleableItems.bind(this)),t.items.on("change",((t,e)=>{const n=e.index,o=Array.from(e.added);for(const t of e.removed)n>=this.ungroupedItems.length?this.groupedItems.remove(t):this.ungroupedItems.remove(t);for(let t=n;t<n+o.length;t++){const e=o[t-n];t>this.ungroupedItems.length?this.groupedItems.add(e,t-this.ungroupedItems.length):this.ungroupedItems.add(e,t)}this._updateGrouping()})),t.extendTemplate({attributes:{class:["ck-toolbar_grouping"]}})}render(t){this.viewElement=t.element,this._enableGroupingOnResize(),this._enableGroupingOnMaxWidthChange(t)}destroy(){this.groupedItemsDropdown.destroy(),this.resizeObserver.destroy()}_updateGrouping(){if(!this.viewElement.ownerDocument.body.contains(this.viewElement))return;if(!Ko(this.viewElement))return void(this.shouldUpdateGroupingOnNextResize=!0);const t=this.groupedItems.length;let e;for(;this._areItemsOverflowing;)this._groupLastItem(),e=!0;if(!e&&this.groupedItems.length){for(;this.groupedItems.length&&!this._areItemsOverflowing;)this._ungroupFirstItem();this._areItemsOverflowing&&this._groupLastItem()}this.groupedItems.length!==t&&this.view.fire("groupedItemsUpdate")}get _areItemsOverflowing(){if(!this.ungroupedItems.length)return!1;const t=this.viewElement,e=this.viewLocale.uiLanguageDirection,n=new No(t.lastChild),o=new No(t);if(!this.cachedPadding){const n=Po.window.getComputedStyle(t),o="ltr"===e?"paddingRight":"paddingLeft";this.cachedPadding=Number.parseInt(n[o])}return"ltr"===e?n.right>o.right-this.cachedPadding:n.left<o.left+this.cachedPadding}_enableGroupingOnResize(){let t;this.resizeObserver=new qo(this.viewElement,(e=>{t&&t===e.contentRect.width&&!this.shouldUpdateGroupingOnNextResize||(this.shouldUpdateGroupingOnNextResize=!1,this._updateGrouping(),t=e.contentRect.width)})),this._updateGrouping()}_enableGroupingOnMaxWidthChange(t){t.on("change:maxWidth",(()=>{this._updateGrouping()}))}_groupLastItem(){this.groupedItems.length||(this.viewChildren.add(new wg),this.viewChildren.add(this.groupedItemsDropdown),this.viewFocusTracker.add(this.groupedItemsDropdown.element)),this.groupedItems.add(this.ungroupedItems.remove(this.ungroupedItems.last),0)}_ungroupFirstItem(){this.ungroupedItems.add(this.groupedItems.remove(this.groupedItems.first)),this.groupedItems.length||(this.viewChildren.remove(this.groupedItemsDropdown),this.viewChildren.remove(this.viewChildren.last),this.viewFocusTracker.remove(this.groupedItemsDropdown.element))}_createGroupedItemsDropdown(){const t=this.viewLocale,e=t.t,n=Mg(t);return n.class="ck-toolbar__grouped-dropdown",n.panelPosition="ltr"===t.uiLanguageDirection?"sw":"se",Lg(n,[]),n.buttonView.set({label:e("Show more items"),tooltip:!0,tooltipPosition:"rtl"===t.uiLanguageDirection?"se":"sw",icon:yg}),n.toolbarView.items.bindTo(this.groupedItems).using((t=>t)),n}_updateFocusCycleableItems(){this.viewFocusables.clear(),this.ungroupedItems.map((t=>{this.viewFocusables.add(t)})),this.groupedItems.length&&this.viewFocusables.add(this.groupedItemsDropdown)}}var Bg=n(1046),Ig={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Bg.Z,Ig);Bg.Z.locals;class Pg extends _u{constructor(t){super(t),this.items=this.createCollection(),this.focusTracker=new yi,this.keystrokes=new xi,this._focusCycler=new bg({focusables:this.items,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"arrowup",focusNext:"arrowdown"}}),this.setTemplate({tag:"ul",attributes:{class:["ck","ck-reset","ck-list"]},children:this.items})}render(){super.render();for(const t of this.items)this.focusTracker.add(t.element);this.items.on("add",((t,e)=>{this.focusTracker.add(e.element)})),this.items.on("remove",((t,e)=>{this.focusTracker.remove(e.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}}class Rg extends _u{constructor(t){super(t);const e=this.bindTemplate;this.set("isVisible",!0),this.children=this.createCollection(),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__item",e.if("isVisible","ck-hidden",(t=>!t))]},children:this.children})}focus(){this.children.first.focus()}}class zg extends _u{constructor(t){super(t),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__separator"]}})}}var Vg=n(7339),Fg={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Vg.Z,Fg);Vg.Z.locals;var Og=n(3949),Ng={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Og.Z,Ng);Og.Z.locals;function Mg(t,e=cg){const n=new e(t),o=new gg(t),i=new fg(t,n,o);return n.bind("isEnabled").to(i),n instanceof ug?n.arrowView.bind("isOn").to(i,"isOpen"):n.bind("isOn").to(i,"isOpen"),function(t){(function(t){t.on("render",(()=>{Hu({emitter:t,activator:()=>t.isOpen,callback:()=>{t.isOpen=!1},contextElements:[t.element]})}))})(t),function(t){t.on("execute",(e=>{e.source instanceof tg||(t.isOpen=!1)}))}(t),function(t){t.focusTracker.on("change:isFocused",((e,n,o)=>{t.isOpen&&!o&&(t.isOpen=!1)}))}(t),function(t){t.keystrokes.set("arrowdown",((e,n)=>{t.isOpen&&(t.panelView.focus(),n())})),t.keystrokes.set("arrowup",((e,n)=>{t.isOpen&&(t.panelView.focusLast(),n())}))}(t),function(t){t.on("change:isOpen",((e,n,o)=>{o||t.panelView.element.contains(Po.document.activeElement)&&t.buttonView.focus()}))}(t),function(t){t.on("change:isOpen",((e,n,o)=>{o&&t.panelView.focus()}),{priority:"low"})}(t)}(i),i}function Lg(t,e,n={}){const o=t.locale,i=o.t,r=t.toolbarView=new Eg(o);r.set("ariaLabel",i("Dropdown toolbar")),t.extendTemplate({attributes:{class:["ck-toolbar-dropdown"]}}),e.map((t=>r.items.add(t))),n.enableActiveItemFocusOnDropdownOpen&&qg(t,(()=>r.items.find((t=>t.isOn)))),t.panelView.children.add(r),r.items.delegate("execute").to(t)}function Hg(t,e){const n=t.locale,o=t.listView=new Pg(n);o.items.bindTo(e).using((t=>{if("separator"===t.type)return new zg(n);if("button"===t.type||"switchbutton"===t.type){const e=new Rg(n);let o;return o="button"===t.type?new Yu(n):new tg(n),o.bind(...Object.keys(t.model)).to(t.model),o.delegate("execute").to(e),e.children.add(o),e}return null})),t.panelView.children.add(o),o.items.delegate("execute").to(t),qg(t,(()=>o.items.find((t=>t instanceof Rg&&t.children.first.isOn))))}function qg(t,e){t.on("change:isOpen",(()=>{if(!t.isOpen)return;const n=e();n&&("function"==typeof n.focus?n.focus():k("ui-dropdown-focus-child-on-open-child-missing-focus",{view:n}))}),{priority:p.low-10})}var Wg=n(9688),jg={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Wg.Z,jg);Wg.Z.locals;class Ug extends _u{constructor(t){super(t),this.body=new Uu(t)}render(){super.render(),this.body.attachToDom()}destroy(){return this.body.detachFromDom(),super.destroy()}}var $g=n(3662),Gg={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()($g.Z,Gg);$g.Z.locals;class Kg extends _u{constructor(t){super(t),this.set("text",void 0),this.set("for",void 0),this.id=`ck-editor__label_${m()}`;const e=this.bindTemplate;this.setTemplate({tag:"label",attributes:{class:["ck","ck-label"],id:this.id,for:e.to("for")},children:[{text:e.to("text")}]})}}class Zg extends _u{constructor(t,e,n){super(t),this.setTemplate({tag:"div",attributes:{class:["ck","ck-content","ck-editor__editable","ck-rounded-corners"],lang:t.contentLanguage,dir:t.contentLanguageDirection}}),this.name=null,this.set("isFocused",!1),this._editableElement=n,this._hasExternalElement=!!this._editableElement,this._editingView=e}render(){super.render(),this._hasExternalElement?this.template.apply(this.element=this._editableElement):this._editableElement=this.element,this.on("change:isFocused",(()=>this._updateIsFocusedClasses())),this._updateIsFocusedClasses()}destroy(){this._hasExternalElement&&this.template.revert(this._editableElement),super.destroy()}_updateIsFocusedClasses(){const t=this._editingView;function e(e){t.change((n=>{const o=t.document.getRoot(e.name);n.addClass(e.isFocused?"ck-focused":"ck-blurred",o),n.removeClass(e.isFocused?"ck-blurred":"ck-focused",o)}))}t.isRenderingInProgress?function n(o){t.once("change:isRenderingInProgress",((t,i,r)=>{r?n(o):e(o)}))}(this):e(this)}}class Jg extends Zg{constructor(t,e,n,o={}){super(t,e,n);const i=t.t;this.extendTemplate({attributes:{role:"textbox",class:"ck-editor__editable_inline"}}),this._generateLabel=o.label||(()=>i("Editor editing area: %0",this.name))}render(){super.render();const t=this._editingView;t.change((e=>{const n=t.document.getRoot(this.name);e.setAttribute("aria-label",this._generateLabel(this),n)}))}}var Yg=n(8847),Qg={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Yg.Z,Qg);Yg.Z.locals;class Xg extends _u{constructor(t,e={}){super(t);const n=this.bindTemplate;this.set("label",e.label||""),this.set("class",e.class||null),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-form__header",n.to("class")]},children:this.children});const o=new _u(t);o.setTemplate({tag:"h2",attributes:{class:["ck","ck-form__header__label"]},children:[{text:n.to("label")}]}),this.children.add(o)}}var tm=n(4879),em={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(tm.Z,em);tm.Z.locals;class nm extends _u{constructor(t){super(t),this.set("value",void 0),this.set("id",void 0),this.set("placeholder",void 0),this.set("isReadOnly",!1),this.set("hasError",!1),this.set("ariaDescribedById",void 0),this.focusTracker=new yi,this.bind("isFocused").to(this.focusTracker),this.set("isEmpty",!0),this.set("inputMode","text");const e=this.bindTemplate;this.setTemplate({tag:"input",attributes:{class:["ck","ck-input",e.if("isFocused","ck-input_focused"),e.if("isEmpty","ck-input-text_empty"),e.if("hasError","ck-error")],id:e.to("id"),placeholder:e.to("placeholder"),readonly:e.to("isReadOnly"),inputmode:e.to("inputMode"),"aria-invalid":e.if("hasError",!0),"aria-describedby":e.to("ariaDescribedById")},on:{input:e.to(((...t)=>{this.fire("input",...t),this._updateIsEmpty()})),change:e.to(this._updateIsEmpty.bind(this))}})}render(){super.render(),this.focusTracker.add(this.element),this._setDomElementValue(this.value),this._updateIsEmpty(),this.on("change:value",((t,e,n)=>{this._setDomElementValue(n),this._updateIsEmpty()}))}destroy(){super.destroy(),this.focusTracker.destroy()}select(){this.element.select()}focus(){this.element.focus()}_updateIsEmpty(){this.isEmpty=!this.element.value}_setDomElementValue(t){this.element.value=t||0===t?t:""}}class om extends nm{constructor(t){super(t),this.extendTemplate({attributes:{type:"text",class:["ck-input-text"]}})}}class im extends nm{constructor(t,{min:e,max:n,step:o}={}){super(t);const i=this.bindTemplate;this.set("min",e),this.set("max",n),this.set("step",o),this.extendTemplate({attributes:{type:"number",class:["ck-input-number"],min:i.to("min"),max:i.to("max"),step:i.to("step")}})}}var rm=n(2577),sm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(rm.Z,sm);rm.Z.locals;class am extends _u{constructor(t,e){super(t);const n=`ck-labeled-field-view-${m()}`,o=`ck-labeled-field-view-status-${m()}`;this.fieldView=e(this,n,o),this.set("label",void 0),this.set("isEnabled",!0),this.set("isEmpty",!0),this.set("isFocused",!1),this.set("errorText",null),this.set("infoText",null),this.set("class",void 0),this.set("placeholder",void 0),this.labelView=this._createLabelView(n),this.statusView=this._createStatusView(o),this.fieldWrapperChildren=this.createCollection([this.fieldView,this.labelView]),this.bind("_statusText").to(this,"errorText",this,"infoText",((t,e)=>t||e));const i=this.bindTemplate;this.setTemplate({tag:"div",attributes:{class:["ck","ck-labeled-field-view",i.to("class"),i.if("isEnabled","ck-disabled",(t=>!t)),i.if("isEmpty","ck-labeled-field-view_empty"),i.if("isFocused","ck-labeled-field-view_focused"),i.if("placeholder","ck-labeled-field-view_placeholder"),i.if("errorText","ck-error")]},children:[{tag:"div",attributes:{class:["ck","ck-labeled-field-view__input-wrapper"]},children:this.fieldWrapperChildren},this.statusView]})}_createLabelView(t){const e=new Kg(this.locale);return e.for=t,e.bind("text").to(this,"label"),e}_createStatusView(t){const e=new _u(this.locale),n=this.bindTemplate;return e.setTemplate({tag:"div",attributes:{class:["ck","ck-labeled-field-view__status",n.if("errorText","ck-labeled-field-view__status_error"),n.if("_statusText","ck-hidden",(t=>!t))],id:t,role:n.if("errorText","alert")},children:[{text:n.to("_statusText")}]}),e}focus(){this.fieldView.focus()}}function lm(t,e,n){const o=new om(t.locale);return o.set({id:e,ariaDescribedById:n}),o.bind("isReadOnly").to(t,"isEnabled",(t=>!t)),o.bind("hasError").to(t,"errorText",(t=>!!t)),o.on("input",(()=>{t.errorText=null})),t.bind("isEmpty","isFocused","placeholder").to(o),o}function cm(t,e,n){const o=new im(t.locale);return o.set({id:e,ariaDescribedById:n,inputMode:"numeric"}),o.bind("isReadOnly").to(t,"isEnabled",(t=>!t)),o.bind("hasError").to(t,"errorText",(t=>!!t)),o.on("input",(()=>{t.errorText=null})),t.bind("isEmpty","isFocused","placeholder").to(o),o}function dm(t,e,n){const o=Mg(t.locale);return o.set({id:e,ariaDescribedById:n}),o.bind("isEnabled").to(t),o}class hm extends Ni{static get pluginName(){return"Notification"}init(){this.on("show:warning",((t,e)=>{window.alert(e.message)}),{priority:"lowest"})}showSuccess(t,e={}){this._showNotification({message:t,type:"success",namespace:e.namespace,title:e.title})}showInfo(t,e={}){this._showNotification({message:t,type:"info",namespace:e.namespace,title:e.title})}showWarning(t,e={}){this._showNotification({message:t,type:"warning",namespace:e.namespace,title:e.title})}_showNotification(t){const e=t.namespace?`show:${t.type}:${t.namespace}`:`show:${t.type}`;this.fire(e,{message:t.message,type:t.type,title:t.title||""})}}class um extends(q()){constructor(t,e){super(),e&&ma(this,e),t&&this.set(t)}}const gm='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M11.463 5.187a.888.888 0 1 1 1.254 1.255L9.16 10l3.557 3.557a.888.888 0 1 1-1.254 1.255L7.26 10.61a.888.888 0 0 1 .16-1.382l4.043-4.042z"/></svg>';var mm=n(4650),pm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(mm.Z,pm);mm.Z.locals;var fm=n(7676),bm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(fm.Z,bm);fm.Z.locals;const km=jo("px");class wm extends Ii{constructor(t){super(t),this.positionLimiter=()=>{const t=this.editor.editing.view,e=t.document.selection.editableElement;return e?t.domConverter.mapViewToDom(e.root):null},this.set("visibleView",null),this.view=new xu(t.locale),t.ui.view.body.add(this.view),t.ui.focusTracker.add(this.view.element),this._viewToStack=new Map,this._idToStack=new Map,this.set("_numberOfStacks",0),this.set("_singleViewMode",!1),this._rotatorView=this._createRotatorView(),this._fakePanelsView=this._createFakePanelsView()}static get pluginName(){return"ContextualBalloon"}destroy(){super.destroy(),this.view.destroy(),this._rotatorView.destroy(),this._fakePanelsView.destroy()}hasView(t){return Array.from(this._viewToStack.keys()).includes(t)}add(t){if(this.hasView(t.view))throw new b("contextualballoon-add-view-exist",[this,t]);const e=t.stackId||"main";if(!this._idToStack.has(e))return this._idToStack.set(e,new Map([[t.view,t]])),this._viewToStack.set(t.view,this._idToStack.get(e)),this._numberOfStacks=this._idToStack.size,void(this._visibleStack&&!t.singleViewMode||this.showStack(e));const n=this._idToStack.get(e);t.singleViewMode&&this.showStack(e),n.set(t.view,t),this._viewToStack.set(t.view,n),n===this._visibleStack&&this._showView(t)}remove(t){if(!this.hasView(t))throw new b("contextualballoon-remove-view-not-exist",[this,t]);const e=this._viewToStack.get(t);this._singleViewMode&&this.visibleView===t&&(this._singleViewMode=!1),this.visibleView===t&&(1===e.size?this._idToStack.size>1?this._showNextStack():(this.view.hide(),this.visibleView=null,this._rotatorView.hideView()):this._showView(Array.from(e.values())[e.size-2])),1===e.size?(this._idToStack.delete(this._getStackId(e)),this._numberOfStacks=this._idToStack.size):e.delete(t),this._viewToStack.delete(t)}updatePosition(t){t&&(this._visibleStack.get(this.visibleView).position=t),this.view.pin(this._getBalloonPosition()),this._fakePanelsView.updatePosition()}showStack(t){this.visibleStack=t;const e=this._idToStack.get(t);if(!e)throw new b("contextualballoon-showstack-stack-not-exist",this);this._visibleStack!==e&&this._showView(Array.from(e.values()).pop())}get _visibleStack(){return this._viewToStack.get(this.visibleView)}_getStackId(t){return Array.from(this._idToStack.entries()).find((e=>e[1]===t))[0]}_showNextStack(){const t=Array.from(this._idToStack.values());let e=t.indexOf(this._visibleStack)+1;t[e]||(e=0),this.showStack(this._getStackId(t[e]))}_showPrevStack(){const t=Array.from(this._idToStack.values());let e=t.indexOf(this._visibleStack)-1;t[e]||(e=t.length-1),this.showStack(this._getStackId(t[e]))}_createRotatorView(){const t=new _m(this.editor.locale),e=this.editor.locale.t;return this.view.content.add(t),t.bind("isNavigationVisible").to(this,"_numberOfStacks",this,"_singleViewMode",((t,e)=>!e&&t>1)),t.on("change:isNavigationVisible",(()=>this.updatePosition()),{priority:"low"}),t.bind("counter").to(this,"visibleView",this,"_numberOfStacks",((t,n)=>{if(n<2)return"";const o=Array.from(this._idToStack.values()).indexOf(this._visibleStack)+1;return e("%0 of %1",[o,n])})),t.buttonNextView.on("execute",(()=>{t.focusTracker.isFocused&&this.editor.editing.view.focus(),this._showNextStack()})),t.buttonPrevView.on("execute",(()=>{t.focusTracker.isFocused&&this.editor.editing.view.focus(),this._showPrevStack()})),t}_createFakePanelsView(){const t=new Am(this.editor.locale,this.view);return t.bind("numberOfPanels").to(this,"_numberOfStacks",this,"_singleViewMode",((t,e)=>!e&&t>=2?Math.min(t-1,2):0)),t.listenTo(this.view,"change:top",(()=>t.updatePosition())),t.listenTo(this.view,"change:left",(()=>t.updatePosition())),this.editor.ui.view.body.add(t),t}_showView({view:t,balloonClassName:e="",withArrow:n=!0,singleViewMode:o=!1}){this.view.class=e,this.view.withArrow=n,this._rotatorView.showView(t),this.visibleView=t,this.view.pin(this._getBalloonPosition()),this._fakePanelsView.updatePosition(),o&&(this._singleViewMode=!0)}_getBalloonPosition(){let t=Array.from(this._visibleStack.values()).pop().position;return t&&(t.limiter||(t=Object.assign({},t,{limiter:this.positionLimiter})),t=Object.assign({},t,{viewportOffsetConfig:this.editor.ui.viewportOffset})),t}}class _m extends _u{constructor(t){super(t);const e=t.t,n=this.bindTemplate;this.set("isNavigationVisible",!0),this.focusTracker=new yi,this.buttonPrevView=this._createButtonView(e("Previous"),gm),this.buttonNextView=this._createButtonView(e("Next"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M8.537 14.813a.888.888 0 1 1-1.254-1.255L10.84 10 7.283 6.442a.888.888 0 1 1 1.254-1.255L12.74 9.39a.888.888 0 0 1-.16 1.382l-4.043 4.042z"/></svg>'),this.content=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-balloon-rotator"],"z-index":"-1"},children:[{tag:"div",attributes:{class:["ck-balloon-rotator__navigation",n.to("isNavigationVisible",(t=>t?"":"ck-hidden"))]},children:[this.buttonPrevView,{tag:"span",attributes:{class:["ck-balloon-rotator__counter"]},children:[{text:n.to("counter")}]},this.buttonNextView]},{tag:"div",attributes:{class:"ck-balloon-rotator__content"},children:this.content}]})}render(){super.render(),this.focusTracker.add(this.element)}destroy(){super.destroy(),this.focusTracker.destroy()}showView(t){this.hideView(),this.content.add(t)}hideView(){this.content.clear()}_createButtonView(t,e){const n=new Yu(this.locale);return n.set({label:t,icon:e,tooltip:!0}),n}}class Am extends _u{constructor(t,e){super(t);const n=this.bindTemplate;this.set("top",0),this.set("left",0),this.set("height",0),this.set("width",0),this.set("numberOfPanels",0),this.content=this.createCollection(),this._balloonPanelView=e,this.setTemplate({tag:"div",attributes:{class:["ck-fake-panel",n.to("numberOfPanels",(t=>t?"":"ck-hidden"))],style:{top:n.to("top",km),left:n.to("left",km),width:n.to("width",km),height:n.to("height",km)}},children:this.content}),this.on("change:numberOfPanels",((t,e,n,o)=>{n>o?this._addPanels(n-o):this._removePanels(o-n),this.updatePosition()}))}_addPanels(t){for(;t--;){const t=new _u;t.setTemplate({tag:"div"}),this.content.add(t),this.registerChild(t)}}_removePanels(t){for(;t--;){const t=this.content.last;this.content.remove(t),this.deregisterChild(t),t.destroy()}}updatePosition(){if(this.numberOfPanels){const{top:t,left:e}=this._balloonPanelView,{width:n,height:o}=new No(this._balloonPanelView.element);Object.assign(this,{top:t,left:e,width:n,height:o})}}}var Cm=n(5868),vm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Cm.Z,vm);Cm.Z.locals,jo("px");const ym=jo("px");class xm extends Ii{constructor(t){super(t),this._balloonConfig=Ag(t.config.get("balloonToolbar")),this.toolbarView=this._createToolbarView(),this.focusTracker=new yi,t.ui.once("ready",(()=>{this.focusTracker.add(t.ui.getEditableElement()),this.focusTracker.add(this.toolbarView.element)})),t.ui.addToolbar(this.toolbarView,{beforeFocus:()=>this.show(!0),afterBlur:()=>this.hide(),isContextual:!0}),this._resizeObserver=null,this._balloon=t.plugins.get(wm),this._fireSelectionChangeDebounced=Ba((()=>this.fire("_selectionChangeDebounced")),200),this.decorate("show")}static get pluginName(){return"BalloonToolbar"}static get requires(){return[wm]}init(){const t=this.editor,e=t.model.document.selection;this.listenTo(this.focusTracker,"change:isFocused",((t,e,n)=>{const o=this._balloon.visibleView===this.toolbarView;!n&&o?this.hide():n&&this.show()})),this.listenTo(e,"change:range",((t,n)=>{(n.directChange||e.isCollapsed)&&this.hide(),this._fireSelectionChangeDebounced()})),this.listenTo(this,"_selectionChangeDebounced",(()=>{this.editor.editing.view.document.isFocused&&this.show()})),this._balloonConfig.shouldNotGroupWhenFull||this.listenTo(t,"ready",(()=>{const e=t.ui.view.editable.element;this._resizeObserver=new qo(e,(()=>{this.toolbarView.maxWidth=ym(.9*new No(e).width)}))})),this.listenTo(this.toolbarView,"groupedItemsUpdate",(()=>{this._updatePosition()}))}afterInit(){const t=this.editor.ui.componentFactory;this.toolbarView.fillFromConfig(this._balloonConfig,t)}_createToolbarView(){const t=this.editor.locale.t,e=!this._balloonConfig.shouldNotGroupWhenFull,n=new Eg(this.editor.locale,{shouldGroupWhenFull:e,isFloating:!0});return n.ariaLabel=t("Editor contextual toolbar"),n.render(),n}show(t=!1){const e=this.editor,n=e.model.document.selection,o=e.model.schema;this._balloon.hasView(this.toolbarView)||n.isCollapsed&&!t||function(t,e){if(1===t.rangeCount)return!1;return[...t.getRanges()].every((t=>{const n=t.getContainedElement();return n&&e.isSelectable(n)}))}(n,o)||Array.from(this.toolbarView.items).every((t=>void 0!==t.isEnabled&&!t.isEnabled))||(this.listenTo(this.editor.ui,"update",(()=>{this._updatePosition()})),this._balloon.add({view:this.toolbarView,position:this._getBalloonPositionData(),balloonClassName:"ck-toolbar-container"}))}hide(){this._balloon.hasView(this.toolbarView)&&(this.stopListening(this.editor.ui,"update"),this._balloon.remove(this.toolbarView))}_getBalloonPositionData(){const t=this.editor.editing.view,e=t.document,n=e.selection,o=e.selection.isBackward;return{target:()=>{const e=o?n.getFirstRange():n.getLastRange(),i=No.getDomRangeRects(t.domConverter.viewRangeToDom(e));return o?i[0]:(i.length>1&&0===i[i.length-1].width&&i.pop(),i[i.length-1])},positions:this._getBalloonPositions(o)}}_updatePosition(){this._balloon.updatePosition(this._getBalloonPositionData())}destroy(){super.destroy(),this.stopListening(),this._fireSelectionChangeDebounced.cancel(),this.toolbarView.destroy(),this.focusTracker.destroy(),this._resizeObserver&&this._resizeObserver.destroy()}_getBalloonPositions(t){const e=i.isSafari&&i.isiOS?Tu({heightOffset:Math.max(xu.arrowHeightOffset,Math.round(20/Po.window.visualViewport.scale))}):xu.defaultPositions;return t?[e.northWestArrowSouth,e.northWestArrowSouthWest,e.northWestArrowSouthEast,e.northWestArrowSouthMiddleEast,e.northWestArrowSouthMiddleWest,e.southWestArrowNorth,e.southWestArrowNorthWest,e.southWestArrowNorthEast,e.southWestArrowNorthMiddleWest,e.southWestArrowNorthMiddleEast]:[e.southEastArrowNorth,e.southEastArrowNorthEast,e.southEastArrowNorthWest,e.southEastArrowNorthMiddleEast,e.southEastArrowNorthMiddleWest,e.northEastArrowSouth,e.northEastArrowSouthEast,e.northEastArrowSouthWest,e.northEastArrowSouthMiddleEast,e.northEastArrowSouthMiddleWest]}}var Em=n(9695),Tm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Em.Z,Tm);Em.Z.locals;const Dm=jo("px");class Sm extends Yu{constructor(t){super(t);const e=this.bindTemplate;this.isVisible=!1,this.isToggleable=!0,this.set("top",0),this.set("left",0),this.extendTemplate({attributes:{class:"ck-block-toolbar-button",style:{top:e.to("top",(t=>Dm(t))),left:e.to("left",(t=>Dm(t)))}}})}}const Bm=jo("px"),{pilcrow:Im}=Lu;class Pm extends Ru{constructor(t,e){super(t),this.view=e}get element(){return this.view.editable.element}init(){const t=this.editor,e=this.view,n=t.editing.view,o=e.editable,i=n.document.getRoot();o.name=i.rootName,e.render();const r=o.element;this.setEditableElement(o.name,r),o.bind("isFocused").to(this.focusTracker),n.attachDomRoot(r),this._initPlaceholder(),this.fire("ready")}destroy(){super.destroy();const t=this.view;this.editor.editing.view.detachDomRoot(t.editable.name),t.destroy()}_initPlaceholder(){const t=this.editor,e=t.editing.view,n=e.document.getRoot(),o=t.sourceElement,i=t.config.get("placeholder")||o&&"textarea"===o.tagName.toLowerCase()&&o.getAttribute("placeholder");i&&ji({view:e,element:n,text:i,isDirectHost:!1,keepOnFocus:!0})}}class Rm extends Ug{constructor(t,e,n){super(t);const o=t.t;this.editable=new Jg(t,e,n,{label:t=>o("Rich Text Editor. Editing area: %0",t.name)})}render(){super.render(),this.registerChild(this.editable)}}class zm extends(Vu(Fu(Gh))){constructor(t,e={}){if(!Vm(t)&&void 0!==e.initialData)throw new b("editor-create-initial-data",null);super(e),void 0===this.config.get("initialData")&&this.config.set("initialData",function(t){return Vm(t)?(e=t,e instanceof HTMLTextAreaElement?e.value:e.innerHTML):t;var e}(t)),Vm(t)&&(this.sourceElement=t,function(t){const e=t.sourceElement;if(e){if(e.ckeditorInstance)throw new b("editor-source-element-already-used",t);e.ckeditorInstance=t,t.once("destroy",(()=>{delete e.ckeditorInstance}))}}(this));const n=this.config.get("plugins");n.push(xm),this.config.set("plugins",n),this.config.define("balloonToolbar",this.config.get("toolbar")),this.model.document.createRoot();const o=new Rm(this.locale,this.editing.view,this.sourceElement);this.ui=new Pm(this,o),function(t){if(!Ot(t.updateSourceElement))throw new b("attachtoform-missing-elementapi-interface",t);const e=t.sourceElement;if(function(t){return!!t&&"textarea"===t.tagName.toLowerCase()}(e)&&e.form){let n;const o=e.form,i=()=>t.updateSourceElement();Ot(o.submit)&&(n=o.submit,o.submit=()=>{i(),n.apply(o)}),o.addEventListener("submit",i),t.on("destroy",(()=>{o.removeEventListener("submit",i),n&&(o.submit=n)}))}}(this)}destroy(){const t=this.getData();return this.ui.destroy(),super.destroy().then((()=>{this.sourceElement&&this.updateSourceElement(t)}))}static create(t,e={}){return new Promise((n=>{if(Vm(t)&&"TEXTAREA"===t.tagName)throw new b("editor-wrong-element",null);const o=new this(t,e);n(o.initPlugins().then((()=>o.ui.init())).then((()=>o.data.init(o.config.get("initialData")))).then((()=>o.fire("ready"))).then((()=>o)))}))}}function Vm(t){return Ao(t)}var Fm=n(6764),Om={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Fm.Z,Om);Fm.Z.locals;var Nm=n(2822),Mm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Nm.Z,Mm);Nm.Z.locals;class Lm extends _u{constructor(t){super(t);const e=t.t;this.set("matchCount",0),this.set("highlightOffset",0),this.set("isDirty",!1),this.set("_areCommandsEnabled",{}),this.set("_resultsCounterText",""),this.set("_matchCase",!1),this.set("_wholeWordsOnly",!1),this.bind("_searchResultsFound").to(this,"matchCount",this,"isDirty",((t,e)=>t>0&&!e)),this._findInputView=this._createInputField(e("Find in text…")),this._replaceInputView=this._createInputField(e("Replace with…")),this._findButtonView=this._createButton({label:e("Find"),class:"ck-button-find ck-button-action",withText:!0}),this._findPrevButtonView=this._createButton({label:e("Previous result"),class:"ck-button-prev",icon:gm,keystroke:"Shift+F3",tooltip:!0}),this._findNextButtonView=this._createButton({label:e("Next result"),class:"ck-button-next",icon:gm,keystroke:"F3",tooltip:!0}),this._optionsDropdown=this._createOptionsDropdown(),this._replaceButtonView=this._createButton({label:e("Replace"),class:"ck-button-replace",withText:!0}),this._replaceAllButtonView=this._createButton({label:e("Replace all"),class:"ck-button-replaceall",withText:!0}),this._findFieldsetView=this._createFindFieldset(),this._replaceFieldsetView=this._createReplaceFieldset(),this._focusTracker=new yi,this._keystrokes=new xi,this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this._focusTracker,keystrokeHandler:this._keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"form",attributes:{class:["ck","ck-find-and-replace-form"],tabindex:"-1"},children:[new Xg(t,{label:e("Find and replace")}),this._findFieldsetView,this._replaceFieldsetView]}),qu(this)}render(){super.render(),Wu({view:this}),this._initFocusCycling(),this._initKeystrokeHandling()}destroy(){super.destroy(),this._focusTracker.destroy(),this._keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}reset(){this._findInputView.errorText=null,this.isDirty=!0}get _textToFind(){return this._findInputView.fieldView.element.value}get _textToReplace(){return this._replaceInputView.fieldView.element.value}_createFindFieldset(){const t=this.locale,e=new _u(t);return this._findInputView.fieldView.on("input",(()=>{this.isDirty=!0})),this._findButtonView.on("execute",this._onFindButtonExecute.bind(this)),this._findPrevButtonView.delegate("execute").to(this,"findPrevious"),this._findNextButtonView.delegate("execute").to(this,"findNext"),this._findPrevButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",(({findPrevious:t})=>t)),this._findNextButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",(({findNext:t})=>t)),this._injectFindResultsCounter(),e.setTemplate({tag:"fieldset",attributes:{class:["ck","ck-find-and-replace-form__find"]},children:[this._findInputView,this._findButtonView,this._findPrevButtonView,this._findNextButtonView]}),e}_onFindButtonExecute(){if(this._textToFind)this.isDirty=!1,this.fire("findNext",{searchText:this._textToFind,matchCase:this._matchCase,wholeWords:this._wholeWordsOnly});else{const t=this.t;this._findInputView.errorText=t("Text to find must not be empty.")}}_injectFindResultsCounter(){const t=this.locale,e=t.t,n=this.bindTemplate,o=new _u(t);this.bind("_resultsCounterText").to(this,"highlightOffset",this,"matchCount",((t,n)=>e("%0 of %1",[t,n]))),o.setTemplate({tag:"span",attributes:{class:["ck","ck-results-counter",n.if("isDirty","ck-hidden")]},children:[{text:n.to("_resultsCounterText")}]});const i=()=>{const e=this._findInputView.fieldView.element;if(!e||!Ko(e))return;const n=new No(o.element).width,i="ltr"===t.uiLanguageDirection?"paddingRight":"paddingLeft";e.style[i]=n?`calc( 2 * var(--ck-spacing-standard) + ${n}px )`:null};this.on("change:_resultsCounterText",i,{priority:"low"}),this.on("change:isDirty",i,{priority:"low"}),this._findInputView.template.children[0].children.push(o)}_createReplaceFieldset(){const t=this.locale,e=t.t,n=new _u(t);return this._replaceButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",this,"_searchResultsFound",(({replace:t},e)=>t&&e)),this._replaceAllButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",this,"_searchResultsFound",(({replaceAll:t},e)=>t&&e)),this._replaceInputView.bind("isEnabled").to(this,"_areCommandsEnabled",this,"_searchResultsFound",(({replace:t},e)=>t&&e)),this._replaceInputView.bind("infoText").to(this._replaceInputView,"isEnabled",this._replaceInputView,"isFocused",((t,n)=>t||!n?"":e("Tip: Find some text first in order to replace it."))),this._replaceButtonView.on("execute",(()=>{this.fire("replace",{searchText:this._textToFind,replaceText:this._textToReplace})})),this._replaceAllButtonView.on("execute",(()=>{this.fire("replaceAll",{searchText:this._textToFind,replaceText:this._textToReplace}),this.focus()})),n.setTemplate({tag:"fieldset",attributes:{class:["ck","ck-find-and-replace-form__replace"]},children:[this._replaceInputView,this._optionsDropdown,this._replaceButtonView,this._replaceAllButtonView]}),n}_createOptionsDropdown(){const t=this.locale,e=t.t,n=Mg(t);n.class="ck-options-dropdown",n.buttonView.set({withText:!1,label:e("Show options"),icon:Lu.cog,tooltip:!0});const o=new um({withText:!0,label:e("Match case"),_isMatchCaseSwitch:!0}),i=new um({withText:!0,label:e("Whole words only")});return o.bind("isOn").to(this,"_matchCase"),i.bind("isOn").to(this,"_wholeWordsOnly"),n.on("execute",(t=>{t.source._isMatchCaseSwitch?this._matchCase=!this._matchCase:this._wholeWordsOnly=!this._wholeWordsOnly,this.isDirty=!0})),Hg(n,new Ci([{type:"switchbutton",model:o},{type:"switchbutton",model:i}])),n}_initFocusCycling(){[this._findInputView,this._findButtonView,this._findPrevButtonView,this._findNextButtonView,this._replaceInputView,this._optionsDropdown,this._replaceButtonView,this._replaceAllButtonView].forEach((t=>{this._focusables.add(t),this._focusTracker.add(t.element)}))}_initKeystrokeHandling(){const t=t=>t.stopPropagation(),e=t=>{t.stopPropagation(),t.preventDefault()};this._keystrokes.listenTo(this.element),this._keystrokes.set("f3",(t=>{e(t),this._findNextButtonView.fire("execute")})),this._keystrokes.set("shift+f3",(t=>{e(t),this._findPrevButtonView.fire("execute")})),this._keystrokes.set("enter",(t=>{const n=t.target;n===this._findInputView.fieldView.element?(this._areCommandsEnabled.findNext?this._findNextButtonView.fire("execute"):this._findButtonView.fire("execute"),e(t)):n!==this._replaceInputView.fieldView.element||this.isDirty||(this._replaceButtonView.fire("execute"),e(t))})),this._keystrokes.set("shift+enter",(t=>{t.target===this._findInputView.fieldView.element&&(this._areCommandsEnabled.findPrevious?this._findPrevButtonView.fire("execute"):this._findButtonView.fire("execute"),e(t))})),this._keystrokes.set("arrowright",t),this._keystrokes.set("arrowleft",t),this._keystrokes.set("arrowup",t),this._keystrokes.set("arrowdown",t),this.listenTo(this._findInputView.element,"selectstart",((t,e)=>{e.stopPropagation()}),{priority:"high"}),this.listenTo(this._replaceInputView.element,"selectstart",((t,e)=>{e.stopPropagation()}),{priority:"high"})}_createButton(t){const e=new Yu(this.locale);return e.set(t),e}_createInputField(t){const e=new am(this.locale,lm);return e.label=t,e}}class Hm extends Ii{static get pluginName(){return"FindAndReplaceUI"}constructor(t){super(t),this.formView=null}init(){const t=this.editor;t.ui.componentFactory.add("findAndReplace",(e=>{const n=Mg(e),o=this.formView=new Lm(t.locale);return n.bind("isEnabled").to(t.commands.get("find")),n.panelView.children.add(o),n.on("change:isOpen",((t,e,n)=>{n?(o.disableCssTransitions(),o.reset(),o._findInputView.fieldView.select(),o.enableCssTransitions()):this.fire("searchReseted")}),{priority:"low"}),this._setupDropdownButton(n),this._setupFormView(o),n}))}_setupDropdownButton(t){const e=this.editor.locale.t;t.buttonView.set({icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m12.87 13.786 1.532-1.286 3.857 4.596a1 1 0 1 1-1.532 1.286l-3.857-4.596z"/><path d="M16.004 8.5a6.5 6.5 0 0 1-9.216 5.905c-1.154-.53-.863-1.415-.663-1.615.194-.194.564-.592 1.635-.141a4.5 4.5 0 0 0 5.89-5.904l-.104-.227 1.332-1.331c.045-.046.196-.041.224.007a6.47 6.47 0 0 1 .902 3.306zm-3.4-5.715c.562.305.742 1.106.354 1.494-.388.388-.995.414-1.476.178a4.5 4.5 0 0 0-6.086 5.882l.114.236-1.348 1.349c-.038.037-.17.022-.198-.023a6.5 6.5 0 0 1 5.54-9.9 6.469 6.469 0 0 1 3.1.784z"/><path d="M4.001 11.93.948 8.877a.2.2 0 0 1 .141-.341h6.106a.2.2 0 0 1 .141.341L4.283 11.93a.2.2 0 0 1-.282 0zm11.083-6.789 3.053 3.053a.2.2 0 0 1-.14.342H11.89a.2.2 0 0 1-.14-.342l3.052-3.053a.2.2 0 0 1 .282 0z"/></svg>',label:e("Find and replace"),tooltip:!0})}_setupFormView(t){const e=this.editor.commands,n=this.editor.plugins.get("FindAndReplaceEditing").state,o={before:-1,same:0,after:1};t.bind("highlightOffset").to(n,"highlightedResult",(t=>t?Array.from(n.results).sort(((t,e)=>o[t.marker.getStart().compareWith(e.marker.getStart())])).indexOf(t)+1:0)),t.listenTo(n.results,"change",(()=>{t.matchCount=n.results.length})),t.bind("_areCommandsEnabled").to(e.get("findNext"),"isEnabled",e.get("findPrevious"),"isEnabled",e.get("replace"),"isEnabled",e.get("replaceAll"),"isEnabled",((t,e,n,o)=>({findNext:t,findPrevious:e,replace:n,replaceAll:o}))),t.delegate("findNext","findPrevious","replace","replaceAll").to(this),t.on("change:isDirty",((t,e,n)=>{n&&this.fire("searchReseted")}))}}var qm=/[\\^$.*+?()[\]{}|]/g,Wm=RegExp(qm.source);const jm=function(t){return(t=br(t))&&Wm.test(t)?t.replace(qm,"\\$&"):t};function Um(t,e,n,o){const i=o||new Ci;return e.change((o=>{[...t].forEach((({type:t,item:r})=>{if("elementStart"===t&&e.schema.checkChild(r,"$text")){const t=n({item:r,text:$m(e.createRangeIn(r))});if(!t)return;t.forEach((t=>{const e=`findResult:${m()}`,n=o.addMarker(e,{usingOperation:!1,affectsData:!1,range:o.createRange(o.createPositionAt(r,t.start),o.createPositionAt(r,t.end))}),s=function(t,e){const n=t.find((({marker:t})=>e.getStart().isBefore(t.getStart())));return n?t.getIndex(n):t.length}(i,n);i.add({id:e,label:t.label,marker:n},s)}))}}))})),i}function $m(t){return Array.from(t.getItems()).reduce(((t,e)=>e.is("text")||e.is("textProxy")?t+e.data:`${t}\n`),"")}function Gm(t){const e=t.length-1;let n=t.index;return 3===t.length&&(n+=t[1].length),{label:t[e],start:n,end:n+t[e].length}}function Km(t,e){let n="gu";e.matchCase||(n+="i");let o=`(${jm(t)})`;if(e.wholeWords){const e="[^a-zA-ZÀ-ɏḀ-ỿ]";new RegExp("^"+e).test(t)||(o=`(^|${e}|_)${o}`),new RegExp(e+"$").test(t)||(o=`${o}(?=_|${e}|$)`)}const i=new RegExp(o,n);return function({text:t}){return[...t.matchAll(i)].map(Gm)}}class Zm extends Ri{constructor(t,e){super(t),this.isEnabled=!0,this.affectsData=!1,this._state=e}execute(t,{matchCase:e,wholeWords:n}={}){const{editor:o}=this,{model:i}=o;let r;"string"==typeof t?(r=Km(t,{matchCase:e,wholeWords:n}),this._state.searchText=t):r=t;const s=i.document.getRootNames().reduce(((t,e)=>Um(i.createRangeIn(i.document.getRoot(e)),i,r,t)),null);return this._state.clear(i),this._state.results.addMany(Array.from(s)),this._state.highlightedResult=s.get(0),"string"==typeof t&&(this._state.searchText=t),this._state.matchCase=!!e,this._state.matchWholeWords=!!n,{results:s,findCallback:r}}}class Jm extends Ri{constructor(t,e){super(t),this.isEnabled=!0,this._state=e}execute(t,e){const{model:n}=this.editor;n.change((o=>{const i=e.marker.getRange();if("$graveyard"===i.root.rootName)return void this._state.results.remove(e);let r={};for(const t of i.getItems())if(t.is("$text")||t.is("$textProxy")){r=t.getAttributes();break}n.insertContent(o.createText(t,r),i),this._state.results.has(e)&&this._state.results.remove(e)}))}}class Ym extends Jm{execute(t,e){const{editor:n}=this,{model:o}=n,i=e instanceof Ci?e:o.document.getRootNames().reduce(((t,n)=>Um(o.createRangeIn(o.document.getRoot(n)),o,Km(e,this._state),t)),null);i.length&&o.change((()=>{[...i].forEach((e=>{super.execute(t,e)}))}))}}class Qm extends Ri{constructor(t,e){super(t),this.affectsData=!1,this._state=e,this.isEnabled=!1,this.listenTo(this._state.results,"change",(()=>{this.isEnabled=this._state.results.length>1}))}refresh(){this.isEnabled=this._state.results.length>1}execute(){const t=this._state.results,e=t.getIndex(this._state.highlightedResult),n=e+1>=t.length?0:e+1;this._state.highlightedResult=this._state.results.get(n)}}class Xm extends Qm{execute(){const t=this._state.results.getIndex(this._state.highlightedResult),e=t-1<0?this._state.results.length-1:t-1;this._state.highlightedResult=this._state.results.get(e)}}class tp{constructor(t){this.set("results",new Ci),this.set("highlightedResult",null),this.set("searchText",""),this.set("replaceText",""),this.set("matchCase",!1),this.set("matchWholeWords",!1),this.results.on("change",((e,{removed:n,index:o})=>{if((n=Array.from(n)).length){let e=!1;if(t.change((o=>{for(const i of n)this.highlightedResult===i&&(e=!0),t.markers.has(i.marker.name)&&o.removeMarker(i.marker)})),e){const t=o>=this.results.length?0:o;this.highlightedResult=this.results.get(t)}}}))}clear(t){this.searchText="",t.change((e=>{if(this.highlightedResult){const n=this.highlightedResult.marker.name.split(":")[1],o=t.markers.get(`findResultHighlighted:${n}`);o&&e.removeMarker(o)}[...this.results].forEach((({marker:t})=>{e.removeMarker(t)}))})),this.results.clear()}}d(tp,q);var ep=n(9932),np={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(ep.Z,np);ep.Z.locals;class op extends Ii{static get pluginName(){return"FindAndReplaceEditing"}init(){this._activeResults=null,this.state=new tp(this.editor.model),this._defineConverters(),this._defineCommands(),this.listenTo(this.state,"change:highlightedResult",((t,e,n,o)=>{const{model:i}=this.editor;i.change((t=>{if(o){const e=o.marker.name.split(":")[1],n=i.markers.get(`findResultHighlighted:${e}`);n&&t.removeMarker(n)}if(n){const e=n.marker.name.split(":")[1];t.addMarker(`findResultHighlighted:${e}`,{usingOperation:!1,affectsData:!1,range:n.marker.getRange()})}}))}));const t=Ba(function(t,e,n){if(n){const t=this.editor.editing.view.domConverter,e=this.editor.editing.mapper.toViewRange(n.marker.getRange());Xo({target:t.viewRangeToDom(e),viewportOffset:40})}}.bind(this),32);this.listenTo(this.state,"change:highlightedResult",t,{priority:"low"}),this.listenTo(this.editor,"destroy",t.cancel)}find(t){const{editor:e}=this,{model:n}=e,{findCallback:o,results:i}=e.execute("find",t);return this._activeResults=i,this.listenTo(n.document,"change:data",(()=>function(t,e,n){const o=new Set,i=new Set;e.document.differ.getChanges().forEach((t=>{"$text"===t.name||e.schema.isInline(t.position.nodeAfter)?(o.add(t.position.parent),[...e.markers.getMarkersAtPosition(t.position)].forEach((t=>{i.add(t.name)}))):"insert"===t.type&&o.add(t.position.nodeAfter)})),e.document.differ.getChangedMarkers().forEach((({name:t,data:{newRange:e}})=>{e&&"$graveyard"===e.start.root.rootName&&i.add(t)})),o.forEach((t=>{[...e.markers.getMarkersIntersectingRange(e.createRangeIn(t))].forEach((t=>i.add(t.name)))})),e.change((e=>{i.forEach((n=>{t.has(n)&&t.remove(n),e.removeMarker(n)}))})),o.forEach((o=>{Um(e.createRangeOn(o),e,n,t)}))}(this._activeResults,n,o))),this._activeResults}stop(){this._activeResults&&(this.stopListening(this.editor.model.document),this.state.clear(this.editor.model),this._activeResults=null)}_defineCommands(){this.editor.commands.add("find",new Zm(this.editor,this.state)),this.editor.commands.add("findNext",new Qm(this.editor,this.state)),this.editor.commands.add("findPrevious",new Xm(this.editor,this.state)),this.editor.commands.add("replace",new Jm(this.editor,this.state)),this.editor.commands.add("replaceAll",new Ym(this.editor,this.state))}_defineConverters(){const{editor:t}=this;t.conversion.for("editingDowncast").markerToHighlight({model:"findResult",view:({markerName:t})=>{const[,e]=t.split(":");return{name:"span",classes:["ck-find-result"],attributes:{"data-find-result":e}}}}),t.conversion.for("editingDowncast").markerToHighlight({model:"findResultHighlighted",view:({markerName:t})=>{const[,e]=t.split(":");return{name:"span",classes:["ck-find-result_selected"],attributes:{"data-find-result":e}}}})}}class ip extends(q()){constructor(){super();const t=new window.FileReader;this._reader=t,this._data=void 0,this.set("loaded",0),t.onprogress=t=>{this.loaded=t.loaded}}get error(){return this._reader.error}get data(){return this._data}read(t){const e=this._reader;return this.total=t.size,new Promise(((n,o)=>{e.onload=()=>{const t=e.result;this._data=t,n(t)},e.onerror=()=>{o("error")},e.onabort=()=>{o("aborted")},this._reader.readAsDataURL(t)}))}abort(){this._reader.abort()}}class rp extends Ii{static get pluginName(){return"FileRepository"}static get requires(){return[Ou]}init(){this.loaders=new Ci,this.loaders.on("change",(()=>this._updatePendingAction())),this._loadersMap=new Map,this._pendingAction=null,this.set("uploaded",0),this.set("uploadTotal",null),this.bind("uploadedPercent").to(this,"uploaded",this,"uploadTotal",((t,e)=>e?t/e*100:0))}getLoader(t){return this._loadersMap.get(t)||null}createLoader(t){if(!this.createUploadAdapter)return k("filerepository-no-upload-adapter"),null;const e=new sp(Promise.resolve(t),this.createUploadAdapter);return this.loaders.add(e),this._loadersMap.set(t,e),t instanceof Promise&&e.file.then((t=>{this._loadersMap.set(t,e)})).catch((()=>{})),e.on("change:uploaded",(()=>{let t=0;for(const e of this.loaders)t+=e.uploaded;this.uploaded=t})),e.on("change:uploadTotal",(()=>{let t=0;for(const e of this.loaders)e.uploadTotal&&(t+=e.uploadTotal);this.uploadTotal=t})),e}destroyLoader(t){const e=t instanceof sp?t:this.getLoader(t);e._destroy(),this.loaders.remove(e),this._loadersMap.forEach(((t,n)=>{t===e&&this._loadersMap.delete(n)}))}_updatePendingAction(){const t=this.editor.plugins.get(Ou);if(this.loaders.length){if(!this._pendingAction){const e=this.editor.t,n=t=>`${e("Upload in progress")} ${parseInt(t)}%.`;this._pendingAction=t.add(n(this.uploadedPercent)),this._pendingAction.bind("message").to(this,"uploadedPercent",n)}}else t.remove(this._pendingAction),this._pendingAction=null}}class sp extends(q()){constructor(t,e){super(),this.id=m(),this._filePromiseWrapper=this._createFilePromiseWrapper(t),this._adapter=e(this),this._reader=new ip,this.set("status","idle"),this.set("uploaded",0),this.set("uploadTotal",null),this.bind("uploadedPercent").to(this,"uploaded",this,"uploadTotal",((t,e)=>e?t/e*100:0)),this.set("uploadResponse",null)}get file(){return this._filePromiseWrapper?this._filePromiseWrapper.promise.then((t=>this._filePromiseWrapper?t:null)):Promise.resolve(null)}get data(){return this._reader.data}read(){if("idle"!=this.status)throw new b("filerepository-read-wrong-status",this);return this.status="reading",this.file.then((t=>this._reader.read(t))).then((t=>{if("reading"!==this.status)throw this.status;return this.status="idle",t})).catch((t=>{if("aborted"===t)throw this.status="aborted","aborted";throw this.status="error",this._reader.error?this._reader.error:t}))}upload(){if("idle"!=this.status)throw new b("filerepository-upload-wrong-status",this);return this.status="uploading",this.file.then((()=>this._adapter.upload())).then((t=>(this.uploadResponse=t,this.status="idle",t))).catch((t=>{if("aborted"===this.status)throw"aborted";throw this.status="error",t}))}abort(){const t=this.status;this.status="aborted",this._filePromiseWrapper.isFulfilled?"reading"==t?this._reader.abort():"uploading"==t&&this._adapter.abort&&this._adapter.abort():(this._filePromiseWrapper.promise.catch((()=>{})),this._filePromiseWrapper.rejecter("aborted")),this._destroy()}_destroy(){this._filePromiseWrapper=void 0,this._reader=void 0,this._adapter=void 0,this.uploadResponse=void 0}_createFilePromiseWrapper(t){const e={};return e.promise=new Promise(((n,o)=>{e.rejecter=o,e.isFulfilled=!1,t.then((t=>{e.isFulfilled=!0,n(t)})).catch((t=>{e.isFulfilled=!0,o(t)}))})),e}}class ap extends _u{constructor(t){super(t),this.buttonView=new Yu(t),this._fileInputView=new lp(t),this._fileInputView.bind("acceptedType").to(this),this._fileInputView.bind("allowMultipleFiles").to(this),this._fileInputView.delegate("done").to(this),this.setTemplate({tag:"span",attributes:{class:"ck-file-dialog-button"},children:[this.buttonView,this._fileInputView]}),this.buttonView.on("execute",(()=>{this._fileInputView.open()}))}focus(){this.buttonView.focus()}}class lp extends _u{constructor(t){super(t),this.set("acceptedType",void 0),this.set("allowMultipleFiles",!1);const e=this.bindTemplate;this.setTemplate({tag:"input",attributes:{class:["ck-hidden"],type:"file",tabindex:"-1",accept:e.to("acceptedType"),multiple:e.to("allowMultipleFiles")},on:{change:e.to((()=>{this.element&&this.element.files&&this.element.files.length&&this.fire("done",this.element.files),this.element.value=""}))}})}open(){this.element.click()}}const cp="ckCsrfToken",dp="abcdefghijklmnopqrstuvwxyz0123456789";function hp(){let t=function(t){t=t.toLowerCase();const e=document.cookie.split(";");for(const n of e){const e=n.split("=");if(decodeURIComponent(e[0].trim().toLowerCase())===t)return decodeURIComponent(e[1])}return null}(cp);var e,n;return t&&40==t.length||(t=function(t){let e="";const n=new Uint8Array(t);window.crypto.getRandomValues(n);for(let t=0;t<n.length;t++){const o=dp.charAt(n[t]%dp.length);e+=Math.random()>.5?o.toUpperCase():o}return e}(40),e=cp,n=t,document.cookie=encodeURIComponent(e)+"="+encodeURIComponent(n)+";path=/"),t}class up{constructor(t,e,n){this.loader=t,this.url=e,this.t=n}upload(){return this.loader.file.then((t=>new Promise(((e,n)=>{this._initRequest(),this._initListeners(e,n,t),this._sendRequest(t)}))))}abort(){this.xhr&&this.xhr.abort()}_initRequest(){const t=this.xhr=new XMLHttpRequest;t.open("POST",this.url,!0),t.responseType="json"}_initListeners(t,e,n){const o=this.xhr,i=this.loader,r=(0,this.t)("Cannot upload file:")+` ${n.name}.`;o.addEventListener("error",(()=>e(r))),o.addEventListener("abort",(()=>e())),o.addEventListener("load",(()=>{const n=o.response;if(!n||!n.uploaded)return e(n&&n.error&&n.error.message?n.error.message:r);t({default:n.url})})),o.upload&&o.upload.addEventListener("progress",(t=>{t.lengthComputable&&(i.uploadTotal=t.total,i.uploaded=t.loaded)}))}_sendRequest(t){const e=new FormData;e.append("upload",t),e.append("ckCsrfToken",hp()),this.xhr.send(e)}}class gp{constructor(t,e=20){this._batch=null,this.model=t,this._size=0,this.limit=e,this._isLocked=!1,this._changeCallback=(t,e)=>{e.isLocal&&e.isUndoable&&e!==this._batch&&this._reset(!0)},this._selectionChangeCallback=()=>{this._reset()},this.model.document.on("change",this._changeCallback),this.model.document.selection.on("change:range",this._selectionChangeCallback),this.model.document.selection.on("change:attribute",this._selectionChangeCallback)}get batch(){return this._batch||(this._batch=this.model.createBatch({isTyping:!0})),this._batch}get size(){return this._size}input(t){this._size+=t,this._size>=this.limit&&this._reset(!0)}get isLocked(){return this._isLocked}lock(){this._isLocked=!0}unlock(){this._isLocked=!1}destroy(){this.model.document.off("change",this._changeCallback),this.model.document.selection.off("change:range",this._selectionChangeCallback),this.model.document.selection.off("change:attribute",this._selectionChangeCallback)}_reset(t=!1){this.isLocked&&!t||(this._batch=null,this._size=0)}}class mp extends Ri{constructor(t,e){super(t),this._buffer=new gp(t.model,e)}get buffer(){return this._buffer}destroy(){super.destroy(),this._buffer.destroy()}execute(t={}){const e=this.editor.model,n=e.document,o=t.text||"",i=o.length;let r=n.selection;t.selection?r=t.selection:t.range&&(r=e.createSelection(t.range));const s=t.resultRange;e.enqueueChange(this._buffer.batch,(t=>{this._buffer.lock(),e.deleteContent(r),o&&e.insertContent(t.createText(o,n.selection.getAttributes()),r),s?t.setSelection(s):r.is("documentSelection")||t.setSelection(r),this._buffer.unlock(),this._buffer.input(i)}))}}const pp=["insertText","insertReplacementText"];class fp extends ga{constructor(t){super(t),i.isAndroid&&pp.push("insertCompositionText");const e=t.document;e.on("beforeinput",((n,o)=>{if(!this.isEnabled)return;const{data:i,targetRanges:r,inputType:s,domEvent:a}=o;if(!pp.includes(s))return;const l=new u(e,"insertText");e.fire(l,new pa(t,a,{text:i,selection:t.createSelection(r)})),l.stop.called&&n.stop()})),e.on("compositionend",((n,{data:o,domEvent:r})=>{this.isEnabled&&!i.isAndroid&&o&&e.fire("insertText",new pa(t,r,{text:o,selection:e.selection}))}),{priority:"lowest"})}observe(){}}class bp extends Ii{static get pluginName(){return"Input"}init(){const t=this.editor,e=t.model,n=t.editing.view,o=e.document.selection;n.addObserver(fp);const r=new mp(t,t.config.get("typing.undoStep")||20);t.commands.add("insertText",r),t.commands.add("input",r),this.listenTo(n.document,"insertText",((o,r)=>{n.document.isComposing||r.preventDefault();const{text:s,selection:a,resultRange:l}=r,c=Array.from(a.getRanges()).map((e=>t.editing.mapper.toModelRange(e)));let d=s;if(i.isAndroid){const t=Array.from(c[0].getItems()).reduce(((t,e)=>t+(e.is("$textProxy")?e.data:"")),"");t&&(t.length<=d.length?d.startsWith(t)&&(d=d.substring(t.length),c[0].start=c[0].start.getShiftedBy(t.length)):t.startsWith(d)&&(c[0].start=c[0].start.getShiftedBy(d.length),d=""))}const h={text:d,selection:e.createSelection(c)};l&&(h.resultRange=t.editing.mapper.toModelRange(l)),t.execute("insertText",h)})),i.isAndroid?this.listenTo(n.document,"keydown",((t,i)=>{!o.isCollapsed&&229==i.keyCode&&n.document.isComposing&&kp(e,r)})):this.listenTo(n.document,"compositionstart",(()=>{o.isCollapsed||kp(e,r)}))}}function kp(t,e){if(!e.isEnabled)return;const n=e.buffer;n.lock(),t.enqueueChange(n.batch,(()=>{t.deleteContent(t.document.selection)})),n.unlock()}class wp extends Ri{constructor(t,e){super(t),this.direction=e,this._buffer=new gp(t.model,t.config.get("typing.undoStep"))}get buffer(){return this._buffer}execute(t={}){const e=this.editor.model,n=e.document;e.enqueueChange(this._buffer.batch,(o=>{this._buffer.lock();const i=o.createSelection(t.selection||n.selection),r=t.sequence||1,s=i.isCollapsed;if(i.isCollapsed&&e.modifySelection(i,{direction:this.direction,unit:t.unit,treatEmojiAsSingleUnit:!0}),this._shouldEntireContentBeReplacedWithParagraph(r))return void this._replaceEntireContentWithParagraph(o);if(this._shouldReplaceFirstBlockWithParagraph(i,r))return void this.editor.execute("paragraph",{selection:i});if(i.isCollapsed)return;let a=0;i.getFirstRange().getMinimalFlatRanges().forEach((t=>{a+=Z(t.getWalker({singleCharacters:!0,ignoreElementEnd:!0,shallow:!0}))})),e.deleteContent(i,{doNotResetEntireContent:s,direction:this.direction}),this._buffer.input(a),o.setSelection(i),this._buffer.unlock()}))}_shouldEntireContentBeReplacedWithParagraph(t){if(t>1)return!1;const e=this.editor.model,n=e.document.selection,o=e.schema.getLimitElement(n);if(!(n.isCollapsed&&n.containsEntireContent(o)))return!1;if(!e.schema.checkChild(o,"paragraph"))return!1;const i=o.getChild(0);return!i||!i.is("element","paragraph")}_replaceEntireContentWithParagraph(t){const e=this.editor.model,n=e.document.selection,o=e.schema.getLimitElement(n),i=t.createElement("paragraph");t.remove(t.createRangeIn(o)),t.insert(i,o),t.setSelection(i,0)}_shouldReplaceFirstBlockWithParagraph(t,e){const n=this.editor.model;if(e>1||"backward"!=this.direction)return!1;if(!t.isCollapsed)return!1;const o=t.getFirstPosition(),i=n.schema.getLimitElement(o),r=i.getChild(0);return o.parent==r&&(!!t.containsEntireContent(r)&&(!!n.schema.checkChild(i,"paragraph")&&"paragraph"!=r.name))}}const _p="word",Ap="selection",Cp="backward",vp="forward",yp={deleteContent:{unit:Ap,direction:Cp},deleteContentBackward:{unit:"codePoint",direction:Cp},deleteWordBackward:{unit:_p,direction:Cp},deleteHardLineBackward:{unit:Ap,direction:Cp},deleteSoftLineBackward:{unit:Ap,direction:Cp},deleteContentForward:{unit:"character",direction:vp},deleteWordForward:{unit:_p,direction:vp},deleteHardLineForward:{unit:Ap,direction:vp},deleteSoftLineForward:{unit:Ap,direction:vp}};class xp extends ga{constructor(t){super(t);const e=t.document;let n=0;e.on("keydown",(()=>{n++})),e.on("keyup",(()=>{n=0})),e.on("beforeinput",((o,r)=>{if(!this.isEnabled)return;const{targetRanges:s,domEvent:a,inputType:l}=r,c=yp[l];if(!c)return;const d={direction:c.direction,unit:c.unit,sequence:n};d.unit==Ap&&(d.selectionToRemove=t.createSelection(s[0])),i.isAndroid&&"deleteContentBackward"===l&&(d.sequence=1,1!=s.length||s[0].start.parent==s[0].end.parent&&s[0].start.offset+1==s[0].end.offset||(d.unit=Ap,d.selectionToRemove=t.createSelection(s)));const h=new us(e,"delete",s[0]);e.fire(h,new pa(t,a,d)),h.stop.called&&o.stop()})),i.isBlink&&function(t){const e=t.view,n=e.document;let o=null,i=!1;function r(t){return t==hi.backspace||t==hi.delete}function s(t){return t==hi.backspace?Cp:vp}n.on("keydown",((t,{keyCode:e})=>{o=e,i=!1})),n.on("keyup",((a,{keyCode:l,domEvent:c})=>{const d=n.selection,h=t.isEnabled&&l==o&&r(l)&&!d.isCollapsed&&!i;if(o=null,h){const t=d.getFirstRange(),o=new us(n,"delete",t),i={unit:Ap,direction:s(l),selectionToRemove:d};n.fire(o,new pa(e,c,i))}})),n.on("beforeinput",((t,{inputType:e})=>{const n=yp[e];r(o)&&n&&n.direction==s(o)&&(i=!0)}),{priority:"high"}),n.on("beforeinput",((t,{inputType:e,data:n})=>{o==hi.delete&&"insertText"==e&&""==n&&t.stop()}),{priority:"high"})}(this)}observe(){}}class Ep extends Ii{static get pluginName(){return"Delete"}init(){const t=this.editor,e=t.editing.view,n=e.document,o=t.model.document;e.addObserver(xp),this._undoOnBackspace=!1;const i=new wp(t,"forward");t.commands.add("deleteForward",i),t.commands.add("forwardDelete",i),t.commands.add("delete",new wp(t,"backward")),this.listenTo(n,"delete",((o,i)=>{n.isComposing||i.preventDefault();const{direction:r,sequence:s,selectionToRemove:a,unit:l}=i,c="forward"===r?"deleteForward":"delete",d={sequence:s};if("selection"==l){const e=Array.from(a.getRanges()).map((e=>t.editing.mapper.toModelRange(e)));d.selection=t.model.createSelection(e)}else d.unit=l;t.execute(c,d),e.scrollToTheSelection()}),{priority:"low"}),this.editor.plugins.has("UndoEditing")&&(this.listenTo(n,"delete",((e,n)=>{this._undoOnBackspace&&"backward"==n.direction&&1==n.sequence&&"codePoint"==n.unit&&(this._undoOnBackspace=!1,t.execute("undo"),n.preventDefault(),e.stop())}),{context:"$capture"}),this.listenTo(o,"change",(()=>{this._undoOnBackspace=!1})))}requestUndoOnBackspace(){this.editor.plugins.has("UndoEditing")&&(this._undoOnBackspace=!0)}}function Tp(t,e){let n=t.start;return{text:Array.from(t.getItems()).reduce(((t,o)=>o.is("$text")||o.is("$textProxy")?t+o.data:(n=e.createPositionAfter(o),"")),""),range:e.createRange(n,t.end)}}class Dp extends(q()){constructor(t,e){super(),this.model=t,this.testCallback=e,this._hasMatch=!1,this.set("isEnabled",!0),this.on("change:isEnabled",(()=>{this.isEnabled?this._startListening():(this.stopListening(t.document.selection),this.stopListening(t.document))})),this._startListening()}get hasMatch(){return this._hasMatch}_startListening(){const t=this.model.document;this.listenTo(t.selection,"change:range",((e,{directChange:n})=>{n&&(t.selection.isCollapsed?this._evaluateTextBeforeSelection("selection"):this.hasMatch&&(this.fire("unmatched"),this._hasMatch=!1))})),this.listenTo(t,"change:data",((t,e)=>{!e.isUndo&&e.isLocal&&this._evaluateTextBeforeSelection("data",{batch:e})}))}_evaluateTextBeforeSelection(t,e={}){const n=this.model,o=n.document.selection,i=n.createRange(n.createPositionAt(o.focus.parent,0),o.focus),{text:r,range:s}=Tp(i,n),a=this.testCallback(r);if(!a&&this.hasMatch&&this.fire("unmatched"),this._hasMatch=!!a,a){const n=Object.assign(e,{text:r,range:s});"object"==typeof a&&Object.assign(n,a),this.fire(`matched:${t}`,n)}}}class Sp extends Ii{constructor(t){super(t),this.attributes=new Set,this._overrideUid=null}static get pluginName(){return"TwoStepCaretMovement"}init(){const t=this.editor,e=t.model,n=t.editing.view,o=t.locale,i=e.document.selection;this.listenTo(n.document,"arrowKey",((t,e)=>{if(!i.isCollapsed)return;if(e.shiftKey||e.altKey||e.ctrlKey)return;const n=e.keyCode==hi.arrowright,r=e.keyCode==hi.arrowleft;if(!n&&!r)return;const s=o.contentLanguageDirection;let a=!1;a="ltr"===s&&n||"rtl"===s&&r?this._handleForwardMovement(e):this._handleBackwardMovement(e),!0===a&&t.stop()}),{context:"$text",priority:"highest"}),this._isNextGravityRestorationSkipped=!1,this.listenTo(i,"change:range",((t,e)=>{this._isNextGravityRestorationSkipped?this._isNextGravityRestorationSkipped=!1:this._isGravityOverridden&&(!e.directChange&&Rp(i.getFirstPosition(),this.attributes)||this._restoreGravity())}))}registerAttribute(t){this.attributes.add(t)}_handleForwardMovement(t){const e=this.attributes,n=this.editor.model.document.selection,o=n.getFirstPosition();return!this._isGravityOverridden&&((!o.isAtStart||!Bp(n,e))&&(!!Rp(o,e)&&(Pp(t),this._overrideGravity(),!0)))}_handleBackwardMovement(t){const e=this.attributes,n=this.editor.model,o=n.document.selection,i=o.getFirstPosition();return this._isGravityOverridden?(Pp(t),this._restoreGravity(),Ip(n,e,i),!0):i.isAtStart?!!Bp(o,e)&&(Pp(t),Ip(n,e,i),!0):!!function(t,e){return Rp(t.getShiftedBy(-1),e)}(i,e)&&(i.isAtEnd&&!Bp(o,e)&&Rp(i,e)?(Pp(t),Ip(n,e,i),!0):(this._isNextGravityRestorationSkipped=!0,this._overrideGravity(),!1))}get _isGravityOverridden(){return!!this._overrideUid}_overrideGravity(){this._overrideUid=this.editor.model.change((t=>t.overrideSelectionGravity()))}_restoreGravity(){this.editor.model.change((t=>{t.restoreSelectionGravity(this._overrideUid),this._overrideUid=null}))}}function Bp(t,e){for(const n of e)if(t.hasAttribute(n))return!0;return!1}function Ip(t,e,n){const o=n.nodeBefore;t.change((t=>{o?t.setSelectionAttribute(o.getAttributes()):t.removeSelectionAttribute(e)}))}function Pp(t){t.preventDefault()}function Rp(t,e){const{nodeBefore:n,nodeAfter:o}=t;for(const t of e){const e=n?n.getAttribute(t):void 0;if((o?o.getAttribute(t):void 0)!==e)return!0}return!1}const zp={copyright:{from:"(c)",to:"©"},registeredTrademark:{from:"(r)",to:"®"},trademark:{from:"(tm)",to:"™"},oneHalf:{from:/(^|[^/a-z0-9])(1\/2)([^/a-z0-9])$/i,to:[null,"½",null]},oneThird:{from:/(^|[^/a-z0-9])(1\/3)([^/a-z0-9])$/i,to:[null,"⅓",null]},twoThirds:{from:/(^|[^/a-z0-9])(2\/3)([^/a-z0-9])$/i,to:[null,"⅔",null]},oneForth:{from:/(^|[^/a-z0-9])(1\/4)([^/a-z0-9])$/i,to:[null,"¼",null]},threeQuarters:{from:/(^|[^/a-z0-9])(3\/4)([^/a-z0-9])$/i,to:[null,"¾",null]},lessThanOrEqual:{from:"<=",to:"≤"},greaterThanOrEqual:{from:">=",to:"≥"},notEqual:{from:"!=",to:"≠"},arrowLeft:{from:"<-",to:"←"},arrowRight:{from:"->",to:"→"},horizontalEllipsis:{from:"...",to:"…"},enDash:{from:/(^| )(--)( )$/,to:[null,"–",null]},emDash:{from:/(^| )(---)( )$/,to:[null,"—",null]},quotesPrimary:{from:Lp('"'),to:[null,"“",null,"”"]},quotesSecondary:{from:Lp("'"),to:[null,"‘",null,"’"]},quotesPrimaryEnGb:{from:Lp("'"),to:[null,"‘",null,"’"]},quotesSecondaryEnGb:{from:Lp('"'),to:[null,"“",null,"”"]},quotesPrimaryPl:{from:Lp('"'),to:[null,"„",null,"”"]},quotesSecondaryPl:{from:Lp("'"),to:[null,"‚",null,"’"]}},Vp={symbols:["copyright","registeredTrademark","trademark"],mathematical:["oneHalf","oneThird","twoThirds","oneForth","threeQuarters","lessThanOrEqual","greaterThanOrEqual","notEqual","arrowLeft","arrowRight"],typography:["horizontalEllipsis","enDash","emDash"],quotes:["quotesPrimary","quotesSecondary"]},Fp=["symbols","mathematical","typography","quotes"];function Op(t){return"string"==typeof t?new RegExp(`(${jm(t)})$`):t}function Np(t){return"string"==typeof t?()=>[t]:t instanceof Array?()=>t:t}function Mp(t){return(t.textNode?t.textNode:t.nodeAfter).getAttributes()}function Lp(t){return new RegExp(`(^|\\s)(${t})([^${t}]*)(${t})$`)}function Hp(t,e,n,o){return o.createRange(qp(t,e,n,!0,o),qp(t,e,n,!1,o))}function qp(t,e,n,o,i){let r=t.textNode||(o?t.nodeBefore:t.nodeAfter),s=null;for(;r&&r.getAttribute(e)==n;)s=r,r=o?r.previousSibling:r.nextSibling;return s?i.createPositionAt(s,o?"before":"after"):t}function Wp(t,e,n,o){const i=t.editing.view,r=new Set;i.document.registerPostFixer((i=>{const s=t.model.document.selection;let a=!1;if(s.hasAttribute(e)){const l=Hp(s.getFirstPosition(),e,s.getAttribute(e),t.model),c=t.editing.mapper.toViewRange(l);for(const t of c.getItems())t.is("element",n)&&!t.hasClass(o)&&(i.addClass(o,t),r.add(t),a=!0)}return a})),t.conversion.for("editingDowncast").add((t=>{function e(){i.change((t=>{for(const e of r.values())t.removeClass(o,e),r.delete(e)}))}t.on("insert",e,{priority:"highest"}),t.on("remove",e,{priority:"highest"}),t.on("attribute",e,{priority:"highest"}),t.on("selection",e,{priority:"highest"})}))}function jp(t,e,n,o){let i,r=null;"function"==typeof o?i=o:(r=t.commands.get(o),i=()=>{t.execute(o)}),t.model.document.on("change:data",((s,a)=>{if(r&&!r.isEnabled||!e.isEnabled)return;const l=vi(t.model.document.selection.getRanges());if(!l.isCollapsed)return;if(a.isUndo||!a.isLocal)return;const c=Array.from(t.model.document.differ.getChanges()),d=c[0];if(1!=c.length||"insert"!==d.type||"$text"!=d.name||1!=d.length)return;const h=d.position.parent;if(h.is("element","codeBlock"))return;if(h.is("element","listItem")&&"function"!=typeof o&&!["numberedList","bulletedList","todoList"].includes(o))return;if(r&&!0===r.value)return;const u=h.getChild(0),g=t.model.createRangeOn(u);if(!g.containsRange(l)&&!l.end.isEqual(g.end))return;const m=n.exec(u.data.substr(0,l.end.offset));m&&t.model.enqueueChange((e=>{const n=e.createPositionAt(h,0),o=e.createPositionAt(h,m[0].length),r=new Vl(n,o);if(!1!==i({match:m})){e.remove(r);const n=t.model.document.selection.getFirstRange(),o=e.createRangeIn(h);!h.isEmpty||o.isEqual(n)||o.containsRange(n,!0)||e.remove(h)}r.detach(),t.model.enqueueChange((()=>{t.plugins.get("Delete").requestUndoOnBackspace()}))}))}))}function Up(t,e,n,o){let i,r;n instanceof RegExp?i=n:r=n,r=r||(t=>{let e;const n=[],o=[];for(;null!==(e=i.exec(t))&&!(e&&e.length<4);){let{index:t,1:i,2:r,3:s}=e;const a=i+r+s;t+=e[0].length-a.length;const l=[t,t+i.length],c=[t+i.length+r.length,t+i.length+r.length+s.length];n.push(l),n.push(c),o.push([t+i.length,t+i.length+r.length])}return{remove:n,format:o}}),t.model.document.on("change:data",((n,i)=>{if(i.isUndo||!i.isLocal||!e.isEnabled)return;const s=t.model,a=s.document.selection;if(!a.isCollapsed)return;const l=Array.from(s.document.differ.getChanges()),c=l[0];if(1!=l.length||"insert"!==c.type||"$text"!=c.name||1!=c.length)return;const d=a.focus,h=d.parent,{text:u,range:g}=function(t,e){let n=t.start;return{text:Array.from(t.getItems()).reduce(((t,o)=>!o.is("$text")&&!o.is("$textProxy")||o.getAttribute("code")?(n=e.createPositionAfter(o),""):t+o.data),""),range:e.createRange(n,t.end)}}(s.createRange(s.createPositionAt(h,0),d),s),m=r(u),p=$p(g.start,m.format,s),f=$p(g.start,m.remove,s);p.length&&f.length&&s.enqueueChange((e=>{if(!1!==o(e,p)){for(const t of f.reverse())e.remove(t);s.enqueueChange((()=>{t.plugins.get("Delete").requestUndoOnBackspace()}))}}))}))}function $p(t,e,n){return e.filter((t=>void 0!==t[0]&&void 0!==t[1])).map((e=>n.createRange(t.getShiftedBy(e[0]),t.getShiftedBy(e[1]))))}class Gp extends Ii{static get requires(){return[Ep]}static get pluginName(){return"Autoformat"}afterInit(){this._addListAutoformats(),this._addBasicStylesAutoformats(),this._addHeadingAutoformats(),this._addBlockQuoteAutoformats(),this._addCodeBlockAutoformats(),this._addHorizontalLineAutoformats()}_addListAutoformats(){const t=this.editor.commands;t.get("bulletedList")&&jp(this.editor,this,/^[*-]\s$/,"bulletedList"),t.get("numberedList")&&jp(this.editor,this,/^1[.|)]\s$/,"numberedList"),t.get("todoList")&&jp(this.editor,this,/^\[\s?\]\s$/,"todoList"),t.get("checkTodoList")&&jp(this.editor,this,/^\[\s?x\s?\]\s$/,(()=>{this.editor.execute("todoList"),this.editor.execute("checkTodoList")}))}_addBasicStylesAutoformats(){const t=this.editor.commands;if(t.get("bold")){const t=Kp(this.editor,"bold");Up(this.editor,this,/(?:^|\s)(\*\*)([^*]+)(\*\*)$/g,t),Up(this.editor,this,/(?:^|\s)(__)([^_]+)(__)$/g,t)}if(t.get("italic")){const t=Kp(this.editor,"italic");Up(this.editor,this,/(?:^|\s)(\*)([^*_]+)(\*)$/g,t),Up(this.editor,this,/(?:^|\s)(_)([^_]+)(_)$/g,t)}if(t.get("code")){const t=Kp(this.editor,"code");Up(this.editor,this,/(`)([^`]+)(`)$/g,t)}if(t.get("strikethrough")){const t=Kp(this.editor,"strikethrough");Up(this.editor,this,/(~~)([^~]+)(~~)$/g,t)}}_addHeadingAutoformats(){const t=this.editor.commands.get("heading");t&&t.modelElements.filter((t=>t.match(/^heading[1-6]$/))).forEach((e=>{const n=e[7],o=new RegExp(`^(#{${n}})\\s$`);jp(this.editor,this,o,(()=>{if(!t.isEnabled||t.value===e)return!1;this.editor.execute("heading",{value:e})}))}))}_addBlockQuoteAutoformats(){this.editor.commands.get("blockQuote")&&jp(this.editor,this,/^>\s$/,"blockQuote")}_addCodeBlockAutoformats(){const t=this.editor,e=t.model.document.selection;t.commands.get("codeBlock")&&jp(t,this,/^```$/,(()=>{if(e.getFirstPosition().parent.is("element","listItem"))return!1;this.editor.execute("codeBlock",{usePreviousLanguageChoice:!0})}))}_addHorizontalLineAutoformats(){this.editor.commands.get("horizontalLine")&&jp(this.editor,this,/^---$/,"horizontalLine")}}function Kp(t,e){return(n,o)=>{if(!t.commands.get(e).isEnabled)return!1;const i=t.model.schema.getValidRanges(o,e);for(const t of i)n.setAttribute(e,!0,t);n.removeSelectionAttribute(e)}}class Zp extends Ri{constructor(t,e){super(t),this.attributeKey=e}refresh(){const t=this.editor.model,e=t.document;this.value=this._getValueFromFirstAllowedNode(),this.isEnabled=t.schema.checkAttributeInSelection(e.selection,this.attributeKey)}execute(t={}){const e=this.editor.model,n=e.document.selection,o=void 0===t.forceValue?!this.value:t.forceValue;e.change((t=>{if(n.isCollapsed)o?t.setSelectionAttribute(this.attributeKey,!0):t.removeSelectionAttribute(this.attributeKey);else{const i=e.schema.getValidRanges(n.getRanges(),this.attributeKey);for(const e of i)o?t.setAttribute(this.attributeKey,o,e):t.removeAttribute(this.attributeKey,e)}}))}_getValueFromFirstAllowedNode(){const t=this.editor.model,e=t.schema,n=t.document.selection;if(n.isCollapsed)return n.hasAttribute(this.attributeKey);for(const t of n.getRanges())for(const n of t.getItems())if(e.checkAttribute(n,this.attributeKey))return n.hasAttribute(this.attributeKey);return!1}}const Jp="bold";class Yp extends Ii{static get pluginName(){return"BoldEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:Jp}),t.model.schema.setAttributeProperties(Jp,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:Jp,view:"strong",upcastAlso:["b",t=>{const e=t.getStyle("font-weight");return e?"bold"==e||Number(e)>=600?{name:!0,styles:["font-weight"]}:void 0:null}]}),t.commands.add(Jp,new Zp(t,Jp)),t.keystrokes.set("CTRL+B",Jp)}}const Qp="bold";class Xp extends Ii{static get pluginName(){return"BoldUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(Qp,(n=>{const o=t.commands.get(Qp),i=new Yu(n);return i.set({label:e("Bold"),icon:Lu.bold,keystroke:"CTRL+B",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(Qp),t.editing.view.focus()})),i}))}}const tf="italic";class ef extends Ii{static get pluginName(){return"ItalicEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:tf}),t.model.schema.setAttributeProperties(tf,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:tf,view:"i",upcastAlso:["em",{styles:{"font-style":"italic"}}]}),t.commands.add(tf,new Zp(t,tf)),t.keystrokes.set("CTRL+I",tf)}}const nf="italic";class of extends Ii{static get pluginName(){return"ItalicUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(nf,(n=>{const o=t.commands.get(nf),i=new Yu(n);return i.set({label:e("Italic"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m9.586 14.633.021.004c-.036.335.095.655.393.962.082.083.173.15.274.201h1.474a.6.6 0 1 1 0 1.2H5.304a.6.6 0 0 1 0-1.2h1.15c.474-.07.809-.182 1.005-.334.157-.122.291-.32.404-.597l2.416-9.55a1.053 1.053 0 0 0-.281-.823 1.12 1.12 0 0 0-.442-.296H8.15a.6.6 0 0 1 0-1.2h6.443a.6.6 0 1 1 0 1.2h-1.195c-.376.056-.65.155-.823.296-.215.175-.423.439-.623.79l-2.366 9.347z"/></svg>',keystroke:"CTRL+I",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(nf),t.editing.view.focus()})),i}))}}const rf="superscript";class sf extends Ii{static get pluginName(){return"SuperscriptEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:rf}),t.model.schema.setAttributeProperties(rf,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:rf,view:"sup",upcastAlso:[{styles:{"vertical-align":"super"}}]}),t.commands.add(rf,new Zp(t,rf))}}const af="superscript";class lf extends Ii{static get pluginName(){return"SuperscriptUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(af,(n=>{const o=t.commands.get(af),i=new Yu(n);return i.set({label:e("Superscript"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M15.677 8.678h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 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3.82z"/></svg>',tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(af),t.editing.view.focus()})),i}))}}const cf="subscript";class df extends Ii{static get pluginName(){return"SubscriptEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:cf}),t.model.schema.setAttributeProperties(cf,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:cf,view:"sub",upcastAlso:[{styles:{"vertical-align":"sub"}}]}),t.commands.add(cf,new Zp(t,cf))}}const hf="subscript";class uf extends Ii{static get pluginName(){return"SubscriptUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(hf,(n=>{const o=t.commands.get(hf),i=new Yu(n);return i.set({label:e("Subscript"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m7.03 10.349 3.818-3.819a.8.8 0 1 1 1.132 1.132L8.16 11.48l3.819 3.818a.8.8 0 1 1-1.132 1.132L7.03 12.61l-3.818 3.82a.8.8 0 1 1-1.132-1.132L5.9 11.48 2.08 7.662A.8.8 0 1 1 3.212 6.53l3.818 3.82zm8.147 7.829h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 1-.159.393c-.105.108-.266.162-.48.162h-3.594c-.245 0-.435-.066-.572-.197a.621.621 0 0 1-.205-.463c0-.114.044-.265.132-.453a1.62 1.62 0 0 1 .288-.444c.433-.436.824-.81 1.172-1.122.348-.312.597-.517.747-.615.267-.183.49-.368.667-.553.177-.185.312-.375.405-.57.093-.194.139-.384.139-.57a1.008 1.008 0 0 0-.554-.917 1.197 1.197 0 0 0-.56-.133c-.426 0-.761.182-1.005.546a2.332 2.332 0 0 0-.164.39 1.609 1.609 0 0 1-.258.488c-.096.114-.237.17-.423.17a.558.558 0 0 1-.405-.156.568.568 0 0 1-.161-.427c0-.218.05-.446.151-.683.101-.238.252-.453.452-.646s.454-.349.762-.467a2.998 2.998 0 0 1 1.081-.178c.498 0 .923.076 1.274.228a1.916 1.916 0 0 1 1.004 1.032 1.984 1.984 0 0 1-.156 1.794c-.2.32-.405.572-.613.754-.208.182-.558.468-1.048.857-.49.39-.826.691-1.008.906a2.703 2.703 0 0 0-.24.309z"/></svg>',tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(hf),t.editing.view.focus()})),i}))}}const gf="underline";class mf extends Ii{static get pluginName(){return"UnderlineEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:gf}),t.model.schema.setAttributeProperties(gf,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:gf,view:"u",upcastAlso:{styles:{"text-decoration":"underline"}}}),t.commands.add(gf,new Zp(t,gf)),t.keystrokes.set("CTRL+U","underline")}}const pf="underline";class ff extends Ii{static get pluginName(){return"UnderlineUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(pf,(n=>{const o=t.commands.get(pf),i=new Yu(n);return i.set({label:e("Underline"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M3 18v-1.5h14V18zm2.2-8V3.6c0-.4.4-.6.8-.6.3 0 .7.2.7.6v6.2c0 2 1.3 2.8 3.2 2.8 1.9 0 3.4-.9 3.4-2.9V3.6c0-.3.4-.5.8-.5.3 0 .7.2.7.5V10c0 2.7-2.2 4-4.9 4-2.6 0-4.7-1.2-4.7-4z"/></svg>',keystroke:"CTRL+U",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(pf),t.editing.view.focus()})),i}))}}const bf="strikethrough";class kf extends Ii{static get pluginName(){return"StrikethroughEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:bf}),t.model.schema.setAttributeProperties(bf,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:bf,view:"s",upcastAlso:["del","strike",{styles:{"text-decoration":"line-through"}}]}),t.commands.add(bf,new Zp(t,bf)),t.keystrokes.set("CTRL+SHIFT+X","strikethrough")}}const wf="strikethrough";class _f extends Ii{static get pluginName(){return"StrikethroughUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(wf,(n=>{const o=t.commands.get(wf),i=new Yu(n);return i.set({label:e("Strikethrough"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M7 16.4c-.8-.4-1.5-.9-2.2-1.5a.6.6 0 0 1-.2-.5l.3-.6h1c1 1.2 2.1 1.7 3.7 1.7 1 0 1.8-.3 2.3-.6.6-.4.6-1.2.6-1.3.2-1.2-.9-2.1-.9-2.1h2.1c.3.7.4 1.2.4 1.7v.8l-.6 1.2c-.6.8-1.1 1-1.6 1.2a6 6 0 0 1-2.4.6c-1 0-1.8-.3-2.5-.6zM6.8 9 6 8.3c-.4-.5-.5-.8-.5-1.6 0-.7.1-1.3.5-1.8.4-.6 1-1 1.6-1.3a6.3 6.3 0 0 1 4.7 0 4 4 0 0 1 1.7 1l.3.7c0 .1.2.4-.2.7-.4.2-.9.1-1 0a3 3 0 0 0-1.2-1c-.4-.2-1-.3-2-.4-.7 0-1.4.2-2 .6-.8.6-1 .8-1 1.5 0 .8.5 1 1.2 1.5.6.4 1.1.7 1.9 1H6.8z"/><path d="M3 10.5V9h14v1.5z"/></svg>',keystroke:"CTRL+SHIFT+X",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(wf),t.editing.view.focus()})),i}))}}const Af="code";class Cf extends Ii{static get pluginName(){return"CodeEditing"}static get requires(){return[Sp]}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:Af}),t.model.schema.setAttributeProperties(Af,{isFormatting:!0,copyOnEnter:!1}),t.conversion.attributeToElement({model:Af,view:"code",upcastAlso:{styles:{"word-wrap":"break-word"}}}),t.commands.add(Af,new Zp(t,Af)),t.plugins.get(Sp).registerAttribute(Af),Wp(t,Af,"code","ck-code_selected")}}var vf=n(8603),yf={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(vf.Z,yf);vf.Z.locals;const xf="code";class Ef extends Ii{static get pluginName(){return"CodeUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(xf,(n=>{const o=t.commands.get(xf),i=new Yu(n);return i.set({label:e("Code"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m12.5 5.7 5.2 3.9v1.3l-5.6 4c-.1.2-.3.2-.5.2-.3-.1-.6-.7-.6-1l.3-.4 4.7-3.5L11.5 7l-.2-.2c-.1-.3-.1-.6 0-.8.2-.2.5-.4.8-.4a.8.8 0 0 1 .4.1zm-5.2 0L2 9.6v1.3l5.6 4c.1.2.3.2.5.2.3-.1.7-.7.6-1 0-.1 0-.3-.2-.4l-5-3.5L8.2 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Bf={insertParagraph:{isSoft:!1},insertLineBreak:{isSoft:!0}};class If extends ga{constructor(t){super(t);const e=this.document;e.on("beforeinput",((n,o)=>{if(!this.isEnabled)return;const i=o.domEvent,r=Bf[o.inputType];if(!r)return;const s=new us(e,"enter",o.targetRanges[0]);e.fire(s,new pa(t,i,{isSoft:r.isSoft})),s.stop.called&&n.stop()}))}observe(){}}class Pf extends Ii{static get pluginName(){return"Enter"}init(){const t=this.editor,e=t.editing.view,n=e.document;e.addObserver(If),t.commands.add("enter",new Df(t)),this.listenTo(n,"enter",((o,i)=>{n.isComposing||i.preventDefault(),i.isSoft||(t.execute("enter"),e.scrollToTheSelection())}),{priority:"low"})}}class Rf extends Ri{execute(){const t=this.editor.model,e=t.document;t.change((n=>{!function(t,e,n){const o=n.isCollapsed,i=n.getFirstRange(),r=i.start.parent,s=i.end.parent,a=r==s;if(o){const o=Tf(t.schema,n.getAttributes());zf(t,e,i.end),e.removeSelectionAttribute(n.getAttributeKeys()),e.setSelectionAttribute(o)}else{const o=!(i.start.isAtStart&&i.end.isAtEnd);t.deleteContent(n,{leaveUnmerged:o}),a?zf(t,e,n.focus):o&&e.setSelection(s,0)}}(t,n,e.selection),this.fire("afterExecute",{writer:n})}))}refresh(){const t=this.editor.model,e=t.document;this.isEnabled=function(t,e){if(e.rangeCount>1)return!1;const n=e.anchor;if(!n||!t.checkChild(n,"softBreak"))return!1;const o=e.getFirstRange(),i=o.start.parent,r=o.end.parent;if((Vf(i,t)||Vf(r,t))&&i!==r)return!1;return!0}(t.schema,e.selection)}}function zf(t,e,n){const o=e.createElement("softBreak");t.insertContent(o,n),e.setSelection(o,"after")}function Vf(t,e){return!t.is("rootElement")&&(e.isLimit(t)||Vf(t.parent,e))}class Ff extends Ii{static get pluginName(){return"ShiftEnter"}init(){const t=this.editor,e=t.model.schema,n=t.conversion,o=t.editing.view,i=o.document;e.register("softBreak",{allowWhere:"$text",isInline:!0}),n.for("upcast").elementToElement({model:"softBreak",view:"br"}),n.for("downcast").elementToElement({model:"softBreak",view:(t,{writer:e})=>e.createEmptyElement("br")}),o.addObserver(If),t.commands.add("shiftEnter",new Rf(t)),this.listenTo(i,"enter",((e,n)=>{i.isComposing||n.preventDefault(),n.isSoft&&(t.execute("shiftEnter"),o.scrollToTheSelection())}),{priority:"low"})}}class Of extends Ri{refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){const e=this.editor.model,n=e.schema,o=e.document.selection,i=Array.from(o.getSelectedBlocks()),r=void 0===t.forceValue?!this.value:t.forceValue;e.change((t=>{if(r){const e=i.filter((t=>Nf(t)||Lf(n,t)));this._applyQuote(t,e)}else this._removeQuote(t,i.filter(Nf))}))}_getValue(){const t=vi(this.editor.model.document.selection.getSelectedBlocks());return!(!t||!Nf(t))}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=vi(t.getSelectedBlocks());return!!n&&Lf(e,n)}_removeQuote(t,e){Mf(t,e).reverse().forEach((e=>{if(e.start.isAtStart&&e.end.isAtEnd)return void t.unwrap(e.start.parent);if(e.start.isAtStart){const n=t.createPositionBefore(e.start.parent);return void t.move(e,n)}e.end.isAtEnd||t.split(e.end);const n=t.createPositionAfter(e.end.parent);t.move(e,n)}))}_applyQuote(t,e){const n=[];Mf(t,e).reverse().forEach((e=>{let o=Nf(e.start);o||(o=t.createElement("blockQuote"),t.wrap(e,o)),n.push(o)})),n.reverse().reduce(((e,n)=>e.nextSibling==n?(t.merge(t.createPositionAfter(e)),e):n))}}function Nf(t){return"blockQuote"==t.parent.name?t.parent:null}function Mf(t,e){let n,o=0;const i=[];for(;o<e.length;){const r=e[o],s=e[o+1];n||(n=t.createPositionBefore(r)),s&&r.nextSibling==s||(i.push(t.createRange(n,t.createPositionAfter(r))),n=null),o++}return i}function Lf(t,e){const n=t.checkChild(e.parent,"blockQuote"),o=t.checkChild(["$root","blockQuote"],e);return n&&o}class Hf extends Ii{static get pluginName(){return"BlockQuoteEditing"}static get requires(){return[Pf,Ep]}init(){const t=this.editor,e=t.model.schema;t.commands.add("blockQuote",new Of(t)),e.register("blockQuote",{inheritAllFrom:"$container"}),t.conversion.elementToElement({model:"blockQuote",view:"blockquote"}),t.model.document.registerPostFixer((n=>{const o=t.model.document.differ.getChanges();for(const t of o)if("insert"==t.type){const o=t.position.nodeAfter;if(!o)continue;if(o.is("element","blockQuote")&&o.isEmpty)return n.remove(o),!0;if(o.is("element","blockQuote")&&!e.checkChild(t.position,o))return n.unwrap(o),!0;if(o.is("element")){const t=n.createRangeIn(o);for(const o of t.getItems())if(o.is("element","blockQuote")&&!e.checkChild(n.createPositionBefore(o),o))return n.unwrap(o),!0}}else if("remove"==t.type){const e=t.position.parent;if(e.is("element","blockQuote")&&e.isEmpty)return n.remove(e),!0}return!1}));const n=this.editor.editing.view.document,o=t.model.document.selection,i=t.commands.get("blockQuote");this.listenTo(n,"enter",((e,n)=>{if(!o.isCollapsed||!i.value)return;o.getLastPosition().parent.isEmpty&&(t.execute("blockQuote"),t.editing.view.scrollToTheSelection(),n.preventDefault(),e.stop())}),{context:"blockquote"}),this.listenTo(n,"delete",((e,n)=>{if("backward"!=n.direction||!o.isCollapsed||!i.value)return;const r=o.getLastPosition().parent;r.isEmpty&&!r.previousSibling&&(t.execute("blockQuote"),t.editing.view.scrollToTheSelection(),n.preventDefault(),e.stop())}),{context:"blockquote"})}}var qf=n(3062),Wf={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(qf.Z,Wf);qf.Z.locals;class jf extends Ii{static get pluginName(){return"BlockQuoteUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("blockQuote",(n=>{const o=t.commands.get("blockQuote"),i=new Yu(n);return i.set({label:e("Block quote"),icon:Lu.quote,tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute("blockQuote"),t.editing.view.focus()})),i}))}}class Uf extends Ri{refresh(){const t=this.editor.model,e=vi(t.document.selection.getSelectedBlocks());this.value=!!e&&e.is("element","paragraph"),this.isEnabled=!!e&&$f(e,t.schema)}execute(t={}){const e=this.editor.model,n=e.document;e.change((o=>{const i=(t.selection||n.selection).getSelectedBlocks();for(const t of i)!t.is("element","paragraph")&&$f(t,e.schema)&&o.rename(t,"paragraph")}))}}function $f(t,e){return e.checkChild(t.parent,"paragraph")&&!e.isObject(t)}class Gf extends Ri{execute(t){const e=this.editor.model,n=t.attributes;let o=t.position;e.change((t=>{const i=t.createElement("paragraph");if(n&&e.schema.setAllowedAttributes(i,n,t),!e.schema.checkChild(o.parent,i)){const n=e.schema.findAllowedParent(o,i);if(!n)return;o=t.split(o,n).position}e.insertContent(i,o),t.setSelection(i,"in")}))}}class Kf extends Ii{static get pluginName(){return"Paragraph"}init(){const t=this.editor,e=t.model;t.commands.add("paragraph",new Uf(t)),t.commands.add("insertParagraph",new Gf(t)),e.schema.register("paragraph",{inheritAllFrom:"$block"}),t.conversion.elementToElement({model:"paragraph",view:"p"}),t.conversion.for("upcast").elementToElement({model:(t,{writer:e})=>Kf.paragraphLikeElements.has(t.name)?t.isEmpty?null:e.createElement("paragraph"):null,view:/.+/,converterPriority:"low"})}}Kf.paragraphLikeElements=new Set(["blockquote","dd","div","dt","h1","h2","h3","h4","h5","h6","li","p","td","th"]);const Zf=Lu.paragraph;class Jf extends Ri{constructor(t,e){super(t),this.modelElements=e}refresh(){const t=vi(this.editor.model.document.selection.getSelectedBlocks());this.value=!!t&&this.modelElements.includes(t.name)&&t.name,this.isEnabled=!!t&&this.modelElements.some((e=>Yf(t,e,this.editor.model.schema)))}execute(t){const e=this.editor.model,n=e.document,o=t.value;e.change((t=>{const i=Array.from(n.selection.getSelectedBlocks()).filter((t=>Yf(t,o,e.schema)));for(const e of i)e.is("element",o)||t.rename(e,o)}))}}function Yf(t,e,n){return n.checkChild(t.parent,e)&&!n.isObject(t)}const Qf="paragraph";class Xf extends Ii{static get pluginName(){return"HeadingEditing"}constructor(t){super(t),t.config.define("heading",{options:[{model:"paragraph",title:"Paragraph",class:"ck-heading_paragraph"},{model:"heading1",view:"h2",title:"Heading 1",class:"ck-heading_heading1"},{model:"heading2",view:"h3",title:"Heading 2",class:"ck-heading_heading2"},{model:"heading3",view:"h4",title:"Heading 3",class:"ck-heading_heading3"}]})}static get requires(){return[Kf]}init(){const t=this.editor,e=t.config.get("heading.options"),n=[];for(const o of e)o.model!==Qf&&(t.model.schema.register(o.model,{inheritAllFrom:"$block"}),t.conversion.elementToElement(o),n.push(o.model));this._addDefaultH1Conversion(t),t.commands.add("heading",new Jf(t,n))}afterInit(){const t=this.editor,e=t.commands.get("enter"),n=t.config.get("heading.options");e&&this.listenTo(e,"afterExecute",((e,o)=>{const i=t.model.document.selection.getFirstPosition().parent;n.some((t=>i.is("element",t.model)))&&!i.is("element",Qf)&&0===i.childCount&&o.writer.rename(i,Qf)}))}_addDefaultH1Conversion(t){t.conversion.for("upcast").elementToElement({model:"heading1",view:"h1",converterPriority:p.get("low")+1})}}function tb(t){const e=t.t,n={Paragraph:e("Paragraph"),"Heading 1":e("Heading 1"),"Heading 2":e("Heading 2"),"Heading 3":e("Heading 3"),"Heading 4":e("Heading 4"),"Heading 5":e("Heading 5"),"Heading 6":e("Heading 6")};return t.config.get("heading.options").map((t=>{const e=n[t.title];return e&&e!=t.title&&(t.title=e),t}))}var eb=n(8733),nb={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(eb.Z,nb);eb.Z.locals;class ob extends Ii{static get pluginName(){return"HeadingUI"}init(){const t=this.editor,e=t.t,n=tb(t),o=e("Choose heading"),i=e("Heading");t.ui.componentFactory.add("heading",(e=>{const r={},s=new Ci,a=t.commands.get("heading"),l=t.commands.get("paragraph"),c=[a];for(const t of n){const e={type:"button",model:new um({label:t.title,class:t.class,withText:!0})};"paragraph"===t.model?(e.model.bind("isOn").to(l,"value"),e.model.set("commandName","paragraph"),c.push(l)):(e.model.bind("isOn").to(a,"value",(e=>e===t.model)),e.model.set({commandName:"heading",commandValue:t.model})),s.add(e),r[t.model]=t.title}const d=Mg(e);return Hg(d,s),d.buttonView.set({isOn:!1,withText:!0,tooltip:i}),d.extendTemplate({attributes:{class:["ck-heading-dropdown"]}}),d.bind("isEnabled").toMany(c,"isEnabled",((...t)=>t.some((t=>t)))),d.buttonView.bind("label").to(a,"value",l,"value",((t,e)=>{const n=t||e&&"paragraph";return r[n]?r[n]:o})),this.listenTo(d,"execute",(e=>{t.execute(e.source.commandName,e.source.commandValue?{value:e.source.commandValue}:void 0),t.editing.view.focus()})),d}))}}class ib extends(T()){constructor(){super(),this._stack=[]}add(t,e){const n=this._stack,o=n[0];this._insertDescriptor(t);const i=n[0];o===i||rb(o,i)||this.fire("change:top",{oldDescriptor:o,newDescriptor:i,writer:e})}remove(t,e){const n=this._stack,o=n[0];this._removeDescriptor(t);const i=n[0];o===i||rb(o,i)||this.fire("change:top",{oldDescriptor:o,newDescriptor:i,writer:e})}_insertDescriptor(t){const e=this._stack,n=e.findIndex((e=>e.id===t.id));if(rb(t,e[n]))return;n>-1&&e.splice(n,1);let 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ib;i.on("change:top",((e,i)=>{i.oldDescriptor&&o(t,i.oldDescriptor,i.writer),i.newDescriptor&&n(t,i.newDescriptor,i.writer)}));e.setCustomProperty("addHighlight",((t,e,n)=>i.add(e,n)),t),e.setCustomProperty("removeHighlight",((t,e,n)=>i.remove(e,n)),t)}function pb(t,e,n={}){return e.addClass(["ck-editor__editable","ck-editor__nested-editable"],t),e.setAttribute("role","textbox",t),n.label&&e.setAttribute("aria-label",n.label,t),e.setAttribute("contenteditable",t.isReadOnly?"false":"true",t),t.on("change:isReadOnly",((n,o,i)=>{e.setAttribute("contenteditable",i?"false":"true",t)})),t.on("change:isFocused",((n,o,i)=>{i?e.addClass("ck-editor__nested-editable_focused",t):e.removeClass("ck-editor__nested-editable_focused",t)})),mb(t,e),t}function fb(t,e){const n=t.getSelectedElement();if(n){const o=Ab(t);if(o)return e.createRange(e.createPositionAt(n,o))}return Jd(t,e)}function bb(t,e){return(n,o)=>{const{mapper:i,viewPosition:r}=o,s=i.findMappedViewAncestor(r);if(!e(s))return;const a=i.toModelElement(s);o.modelPosition=t.createPositionAt(a,r.isAtStart?"before":"after")}}function kb(){return null}const wb="widget-type-around";function _b(t,e,n){return!!t&&db(t)&&!n.isInline(e)}function Ab(t){return t.getAttribute(wb)}var Cb=n(4921),vb={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Cb.Z,vb);Cb.Z.locals;const yb=["before","after"],xb=(new DOMParser).parseFromString('<svg viewBox="0 0 10 8" xmlns="http://www.w3.org/2000/svg"><path d="M9.055.263v3.972h-6.77M1 4.216l2-2.038m-2 2 2 2.038"/></svg>',"image/svg+xml").firstChild,Eb="ck-widget__type-around_disabled";class Tb extends Ii{constructor(t){super(t),this._currentFakeCaretModelElement=null}static get pluginName(){return"WidgetTypeAround"}static get requires(){return[Pf,Ep]}init(){const t=this.editor,e=t.editing.view;this.on("change:isEnabled",((n,o,i)=>{e.change((t=>{for(const n of e.document.roots)i?t.removeClass(Eb,n):t.addClass(Eb,n)})),i||t.model.change((t=>{t.removeSelectionAttribute(wb)}))})),this._enableTypeAroundUIInjection(),this._enableInsertingParagraphsOnButtonClick(),this._enableInsertingParagraphsOnEnterKeypress(),this._enableInsertingParagraphsOnTypingKeystroke(),this._enableTypeAroundFakeCaretActivationUsingKeyboardArrows(),this._enableDeleteIntegration(),this._enableInsertContentIntegration(),this._enableInsertObjectIntegration(),this._enableDeleteContentIntegration()}destroy(){super.destroy(),this._currentFakeCaretModelElement=null}_insertParagraph(t,e){const n=this.editor,o=n.editing.view,i=n.model.schema.getAttributesWithProperty(t,"copyOnReplace",!0);n.execute("insertParagraph",{position:n.model.createPositionAt(t,e),attributes:i}),o.focus(),o.scrollToTheSelection()}_listenToIfEnabled(t,e,n,o){this.listenTo(t,e,((...t)=>{this.isEnabled&&n(...t)}),o)}_insertParagraphAccordingToFakeCaretPosition(){const t=this.editor.model.document.selection,e=Ab(t);if(!e)return!1;const n=t.getSelectedElement();return this._insertParagraph(n,e),!0}_enableTypeAroundUIInjection(){const t=this.editor,e=t.model.schema,n=t.locale.t,o={before:n("Insert paragraph before block"),after:n("Insert paragraph after block")};t.editing.downcastDispatcher.on("insert",((t,i,r)=>{const s=r.mapper.toViewElement(i.item);if(s&&_b(s,i.item,e)){!function(t,e,n){const o=t.createUIElement("div",{class:"ck ck-reset_all ck-widget__type-around"},(function(t){const n=this.toDomElement(t);return function(t,e){for(const n of yb){const o=new Yh({tag:"div",attributes:{class:["ck","ck-widget__type-around__button",`ck-widget__type-around__button_${n}`],title:e[n],"aria-hidden":"true"},children:[t.ownerDocument.importNode(xb,!0)]});t.appendChild(o.render())}}(n,e),function(t){const e=new Yh({tag:"div",attributes:{class:["ck","ck-widget__type-around__fake-caret"]}});t.appendChild(e.render())}(n),n}));t.insert(t.createPositionAt(n,"end"),o)}(r.writer,o,s);s.getCustomProperty("widgetLabel").push((()=>this.isEnabled?n("Press Enter to type after or press Shift + Enter to type before the widget"):""))}}),{priority:"low"})}_enableTypeAroundFakeCaretActivationUsingKeyboardArrows(){const t=this.editor,e=t.model,n=e.document.selection,o=e.schema,i=t.editing.view;function r(t){return`ck-widget_type-around_show-fake-caret_${t}`}this._listenToIfEnabled(i.document,"arrowKey",((t,e)=>{this._handleArrowKeyPress(t,e)}),{context:[db,"$text"],priority:"high"}),this._listenToIfEnabled(n,"change:range",((e,n)=>{n.directChange&&t.model.change((t=>{t.removeSelectionAttribute(wb)}))})),this._listenToIfEnabled(e.document,"change:data",(()=>{const e=n.getSelectedElement();if(e){if(_b(t.editing.mapper.toViewElement(e),e,o))return}t.model.change((t=>{t.removeSelectionAttribute(wb)}))})),this._listenToIfEnabled(t.editing.downcastDispatcher,"selection",((t,e,n)=>{const i=n.writer;if(this._currentFakeCaretModelElement){const t=n.mapper.toViewElement(this._currentFakeCaretModelElement);t&&(i.removeClass(yb.map(r),t),this._currentFakeCaretModelElement=null)}const s=e.selection.getSelectedElement();if(!s)return;const a=n.mapper.toViewElement(s);if(!_b(a,s,o))return;const l=Ab(e.selection);l&&(i.addClass(r(l),a),this._currentFakeCaretModelElement=s)})),this._listenToIfEnabled(t.ui.focusTracker,"change:isFocused",((e,n,o)=>{o||t.model.change((t=>{t.removeSelectionAttribute(wb)}))}))}_handleArrowKeyPress(t,e){const n=this.editor,o=n.model,i=o.document.selection,r=o.schema,s=n.editing.view,a=function(t,e){const n=fi(t,e);return"down"===n||"right"===n}(e.keyCode,n.locale.contentLanguageDirection),l=s.document.selection.getSelectedElement();let c;_b(l,n.editing.mapper.toModelElement(l),r)?c=this._handleArrowKeyPressOnSelectedWidget(a):i.isCollapsed?c=this._handleArrowKeyPressWhenSelectionNextToAWidget(a):e.shiftKey||(c=this._handleArrowKeyPressWhenNonCollapsedSelection(a)),c&&(e.preventDefault(),t.stop())}_handleArrowKeyPressOnSelectedWidget(t){const e=this.editor.model,n=Ab(e.document.selection);return e.change((e=>{if(!n)return e.setSelectionAttribute(wb,t?"after":"before"),!0;if(!(n===(t?"after":"before")))return e.removeSelectionAttribute(wb),!0;return!1}))}_handleArrowKeyPressWhenSelectionNextToAWidget(t){const e=this.editor,n=e.model,o=n.schema,i=e.plugins.get("Widget"),r=i._getObjectElementNextToSelection(t);return!!_b(e.editing.mapper.toViewElement(r),r,o)&&(n.change((e=>{i._setSelectionOverElement(r),e.setSelectionAttribute(wb,t?"before":"after")})),!0)}_handleArrowKeyPressWhenNonCollapsedSelection(t){const e=this.editor,n=e.model,o=n.schema,i=e.editing.mapper,r=n.document.selection,s=t?r.getLastPosition().nodeBefore:r.getFirstPosition().nodeAfter;return!!_b(i.toViewElement(s),s,o)&&(n.change((e=>{e.setSelection(s,"on"),e.setSelectionAttribute(wb,t?"after":"before")})),!0)}_enableInsertingParagraphsOnButtonClick(){const t=this.editor,e=t.editing.view;this._listenToIfEnabled(e.document,"mousedown",((n,o)=>{const i=o.domTarget.closest(".ck-widget__type-around__button");if(!i)return;const r=function(t){return t.classList.contains("ck-widget__type-around__button_before")?"before":"after"}(i),s=function(t,e){const n=t.closest(".ck-widget");return e.mapDomToView(n)}(i,e.domConverter),a=t.editing.mapper.toModelElement(s);this._insertParagraph(a,r),o.preventDefault(),n.stop()}))}_enableInsertingParagraphsOnEnterKeypress(){const t=this.editor,e=t.model.document.selection,n=t.editing.view;this._listenToIfEnabled(n.document,"enter",((n,o)=>{if("atTarget"!=n.eventPhase)return;const i=e.getSelectedElement(),r=t.editing.mapper.toViewElement(i),s=t.model.schema;let a;this._insertParagraphAccordingToFakeCaretPosition()?a=!0:_b(r,i,s)&&(this._insertParagraph(i,o.isSoft?"before":"after"),a=!0),a&&(o.preventDefault(),n.stop())}),{context:db})}_enableInsertingParagraphsOnTypingKeystroke(){const t=this.editor.editing.view.document;this._listenToIfEnabled(t,"insertText",((e,n)=>{this._insertParagraphAccordingToFakeCaretPosition()&&(n.selection=t.selection)}),{priority:"high"}),i.isAndroid?this._listenToIfEnabled(t,"keydown",((t,e)=>{229==e.keyCode&&this._insertParagraphAccordingToFakeCaretPosition()})):this._listenToIfEnabled(t,"compositionstart",(()=>{this._insertParagraphAccordingToFakeCaretPosition()}),{priority:"high"})}_enableDeleteIntegration(){const t=this.editor,e=t.editing.view,n=t.model,o=n.schema;this._listenToIfEnabled(e.document,"delete",((e,i)=>{if("atTarget"!=e.eventPhase)return;const r=Ab(n.document.selection);if(!r)return;const s=i.direction,a=n.document.selection.getSelectedElement(),l="forward"==s;if("before"===r===l)t.execute("delete",{selection:n.createSelection(a,"on")});else{const e=o.getNearestSelectionRange(n.createPositionAt(a,r),s);if(e)if(e.isCollapsed){const 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t=this.editor,e=this.editor.model.document.selection;this._listenToIfEnabled(t.model,"insertObject",((t,n)=>{const[,o,,i={}]=n;if(o&&!o.is("documentSelection"))return;const r=Ab(e);r&&(i.findOptimalPosition=r,n[3]=i)}),{priority:"high"})}_enableDeleteContentIntegration(){const t=this.editor,e=this.editor.model.document.selection;this._listenToIfEnabled(t.model,"deleteContent",((t,[n])=>{if(n&&!n.is("documentSelection"))return;Ab(e)&&t.stop()}),{priority:"high"})}}function Db(t){const e=t.model;return(n,o)=>{const i=o.keyCode==hi.arrowup,r=o.keyCode==hi.arrowdown,s=o.shiftKey,a=e.document.selection;if(!i&&!r)return;const l=r;if(s&&function(t,e){return!t.isCollapsed&&t.isBackward==e}(a,l))return;const c=function(t,e,n){const o=t.model;if(n){const t=e.isCollapsed?e.focus:e.getLastPosition(),n=Sb(o,t,"forward");if(!n)return null;const i=o.createRange(t,n),r=Bb(o.schema,i,"backward");return r?o.createRange(t,r):null}{const t=e.isCollapsed?e.focus:e.getFirstPosition(),n=Sb(o,t,"backward");if(!n)return null;const i=o.createRange(n,t),r=Bb(o.schema,i,"forward");return r?o.createRange(r,t):null}}(t,a,l);if(c){if(c.isCollapsed){if(a.isCollapsed)return;if(s)return}(c.isCollapsed||function(t,e,n){const o=t.model,i=t.view.domConverter;if(n){const t=o.createSelection(e.start);o.modifySelection(t),t.focus.isAtEnd||e.start.isEqual(t.focus)||(e=o.createRange(t.focus,e.end))}const r=t.mapper.toViewRange(e),s=i.viewRangeToDom(r),a=No.getDomRangeRects(s);let l;for(const t of a)if(void 0!==l){if(Math.round(t.top)>=l)return!1;l=Math.max(l,Math.round(t.bottom))}else l=Math.round(t.bottom);return!0}(t,c,l))&&(e.change((t=>{const n=l?c.end:c.start;if(s){const o=e.createSelection(a.anchor);o.setFocus(n),t.setSelection(o)}else t.setSelection(n)})),n.stop(),o.preventDefault(),o.stopPropagation())}}}function Sb(t,e,n){const o=t.schema,i=t.createRangeIn(e.root),r="forward"==n?"elementStart":"elementEnd";for(const{previousPosition:t,item:s,type:a}of i.getWalker({startPosition:e,direction:n})){if(o.isLimit(s)&&!o.isInline(s))return t;if(a==r&&o.isBlock(s))return null}return null}function Bb(t,e,n){const o="backward"==n?e.end:e.start;if(t.checkChild(o,"$text"))return o;for(const{nextPosition:o}of e.getWalker({direction:n}))if(t.checkChild(o,"$text"))return o;return null}var Ib=n(3488),Pb={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Ib.Z,Pb);Ib.Z.locals;class Rb extends Ii{static get pluginName(){return"Widget"}static get requires(){return[Tb,Ep]}init(){const t=this.editor,e=t.editing.view,n=e.document;this._previouslySelected=new Set,this.editor.editing.downcastDispatcher.on("selection",((e,n,o)=>{const i=o.writer,r=n.selection;if(r.isCollapsed)return;const s=r.getSelectedElement();if(!s)return;const a=t.editing.mapper.toViewElement(s);var l;db(a)&&(o.consumable.consume(r,"selection")&&i.setSelection(i.createRangeOn(a),{fake:!0,label:(l=a,l.getCustomProperty("widgetLabel").reduce(((t,e)=>"function"==typeof e?t?t+". "+e():e():t?t+". "+e:e),""))}))})),this.editor.editing.downcastDispatcher.on("selection",((t,e,n)=>{this._clearPreviouslySelectedWidgets(n.writer);const o=n.writer,i=o.document.selection;let r=null;for(const t of i.getRanges())for(const e of t){const t=e.item;db(t)&&!zb(t,r)&&(o.addClass(cb,t),this._previouslySelected.add(t),r=t)}}),{priority:"low"}),e.addObserver(ih),this.listenTo(n,"mousedown",((...t)=>this._onMousedown(...t))),this.listenTo(n,"arrowKey",((...t)=>{this._handleSelectionChangeOnArrowKeyPress(...t)}),{context:[db,"$text"]}),this.listenTo(n,"arrowKey",((...t)=>{this._preventDefaultOnArrowKeyPress(...t)}),{context:"$root"}),this.listenTo(n,"arrowKey",Db(this.editor.editing),{context:"$text"}),this.listenTo(n,"delete",((t,e)=>{this._handleDelete("forward"==e.direction)&&(e.preventDefault(),t.stop())}),{context:"$root"})}_onMousedown(t,e){const n=this.editor,o=n.editing.view,r=o.document;let s=e.target;if(function(t){let e=t;for(;e;){if(e.is("editableElement")&&!e.is("rootElement"))return!0;if(db(e))return!1;e=e.parent}return!1}(s)){if((i.isSafari||i.isGecko)&&e.domEvent.detail>=3){const t=n.editing.mapper,o=s.is("attributeElement")?s.findAncestor((t=>!t.is("attributeElement"))):s,i=t.toModelElement(o);e.preventDefault(),this.editor.model.change((t=>{t.setSelection(i,"in")}))}return}if(!db(s)&&(s=s.findAncestor(db),!s))return;i.isAndroid&&e.preventDefault(),r.isFocused||o.focus();const a=n.editing.mapper.toModelElement(s);this._setSelectionOverElement(a)}_handleSelectionChangeOnArrowKeyPress(t,e){const n=e.keyCode,o=this.editor.model,i=o.schema,r=o.document.selection,s=r.getSelectedElement(),a=fi(n,this.editor.locale.contentLanguageDirection),l="down"==a||"right"==a,c="up"==a||"down"==a;if(s&&i.isObject(s)){const n=l?r.getLastPosition():r.getFirstPosition(),s=i.getNearestSelectionRange(n,l?"forward":"backward");return void(s&&(o.change((t=>{t.setSelection(s)})),e.preventDefault(),t.stop()))}if(!r.isCollapsed&&!e.shiftKey){const n=r.getFirstPosition(),s=r.getLastPosition(),a=n.nodeAfter,c=s.nodeBefore;return void((a&&i.isObject(a)||c&&i.isObject(c))&&(o.change((t=>{t.setSelection(l?s:n)})),e.preventDefault(),t.stop()))}if(!r.isCollapsed)return;const d=this._getObjectElementNextToSelection(l);if(d&&i.isObject(d)){if(i.isInline(d)&&c)return;this._setSelectionOverElement(d),e.preventDefault(),t.stop()}}_preventDefaultOnArrowKeyPress(t,e){const n=this.editor.model,o=n.schema,i=n.document.selection.getSelectedElement();i&&o.isObject(i)&&(e.preventDefault(),t.stop())}_handleDelete(t){if(this.editor.isReadOnly)return;const e=this.editor.model.document.selection;if(!e.isCollapsed)return;const n=this._getObjectElementNextToSelection(t);return n?(this.editor.model.change((t=>{let o=e.anchor.parent;for(;o.isEmpty;){const e=o;o=e.parent,t.remove(e)}this._setSelectionOverElement(n)})),!0):void 0}_setSelectionOverElement(t){this.editor.model.change((e=>{e.setSelection(e.createRangeOn(t))}))}_getObjectElementNextToSelection(t){const e=this.editor.model,n=e.schema,o=e.document.selection,i=e.createSelection(o);if(e.modifySelection(i,{direction:t?"forward":"backward"}),i.isEqual(o))return null;const r=t?i.focus.nodeBefore:i.focus.nodeAfter;return r&&n.isObject(r)?r:null}_clearPreviouslySelectedWidgets(t){for(const e of this._previouslySelected)t.removeClass(cb,e);this._previouslySelected.clear()}}function zb(t,e){return!!e&&Array.from(t.getAncestors()).includes(e)}class Vb extends Ii{static get requires(){return[wm]}static get pluginName(){return"WidgetToolbarRepository"}init(){const t=this.editor;if(t.plugins.has("BalloonToolbar")){const e=t.plugins.get("BalloonToolbar");this.listenTo(e,"show",(e=>{(function(t){const e=t.getSelectedElement();return!(!e||!db(e))})(t.editing.view.document.selection)&&e.stop()}),{priority:"high"})}this._toolbarDefinitions=new Map,this._balloon=this.editor.plugins.get("ContextualBalloon"),this.on("change:isEnabled",(()=>{this._updateToolbarsVisibility()})),this.listenTo(t.ui,"update",(()=>{this._updateToolbarsVisibility()})),this.listenTo(t.ui.focusTracker,"change:isFocused",(()=>{this._updateToolbarsVisibility()}),{priority:"low"})}destroy(){super.destroy();for(const t of this._toolbarDefinitions.values())t.view.destroy()}register(t,{ariaLabel:e,items:n,getRelatedElement:o,balloonClassName:i="ck-toolbar-container"}){if(!n.length)return void k("widget-toolbar-no-items",{toolbarId:t});const r=this.editor,s=r.t,a=new Eg(r.locale);if(a.ariaLabel=e||s("Widget toolbar"),this._toolbarDefinitions.has(t))throw new b("widget-toolbar-duplicated",this,{toolbarId:t});a.fillFromConfig(n,r.ui.componentFactory);const l={view:a,getRelatedElement:o,balloonClassName:i};r.ui.addToolbar(a,{isContextual:!0,beforeFocus:()=>{const t=o(r.editing.view.document.selection);t&&this._showToolbar(l,t)},afterBlur:()=>{this._hideToolbar(l)}}),this._toolbarDefinitions.set(t,l)}_updateToolbarsVisibility(){let t=0,e=null,n=null;for(const o of this._toolbarDefinitions.values()){const i=o.getRelatedElement(this.editor.editing.view.document.selection);if(this.isEnabled&&i)if(this.editor.ui.focusTracker.isFocused){const r=i.getAncestors().length;r>t&&(t=r,e=i,n=o)}else this._isToolbarVisible(o)&&this._hideToolbar(o);else this._isToolbarInBalloon(o)&&this._hideToolbar(o)}n&&this._showToolbar(n,e)}_hideToolbar(t){this._balloon.remove(t.view),this.stopListening(this._balloon,"change:visibleView")}_showToolbar(t,e){this._isToolbarVisible(t)?Fb(this.editor,e):this._isToolbarInBalloon(t)||(this._balloon.add({view:t.view,position:Ob(this.editor,e),balloonClassName:t.balloonClassName}),this.listenTo(this._balloon,"change:visibleView",(()=>{for(const t of this._toolbarDefinitions.values())if(this._isToolbarVisible(t)){const e=t.getRelatedElement(this.editor.editing.view.document.selection);Fb(this.editor,e)}})))}_isToolbarVisible(t){return this._balloon.visibleView===t.view}_isToolbarInBalloon(t){return this._balloon.hasView(t.view)}}function Fb(t,e){const n=t.plugins.get("ContextualBalloon"),o=Ob(t,e);n.updatePosition(o)}function Ob(t,e){const n=t.editing.view,o=xu.defaultPositions;return{target:n.domConverter.mapViewToDom(e),positions:[o.northArrowSouth,o.northArrowSouthWest,o.northArrowSouthEast,o.southArrowNorth,o.southArrowNorthWest,o.southArrowNorthEast,o.viewportStickyNorth]}}class Nb extends(q()){constructor(t){super(),this.set("activeHandlePosition",null),this.set("proposedWidthPercents",null),this.set("proposedWidth",null),this.set("proposedHeight",null),this.set("proposedHandleHostWidth",null),this.set("proposedHandleHostHeight",null),this._options=t,this._referenceCoordinates=null}get originalWidth(){return this._originalWidth}get originalHeight(){return this._originalHeight}get originalWidthPercents(){return this._originalWidthPercents}get aspectRatio(){return this._aspectRatio}begin(t,e,n){const o=new No(e);this.activeHandlePosition=function(t){const e=["top-left","top-right","bottom-right","bottom-left"];for(const n of e)if(t.classList.contains(Mb(n)))return n}(t),this._referenceCoordinates=function(t,e){const n=new No(t),o=e.split("-"),i={x:"right"==o[1]?n.right:n.left,y:"bottom"==o[0]?n.bottom:n.top};return i.x+=t.ownerDocument.defaultView.scrollX,i.y+=t.ownerDocument.defaultView.scrollY,i}(e,function(t){const e=t.split("-"),n={top:"bottom",bottom:"top",left:"right",right:"left"};return`${n[e[0]]}-${n[e[1]]}`}(this.activeHandlePosition)),this._originalWidth=o.width,this._originalHeight=o.height,this._aspectRatio=o.width/o.height;const i=n.style.width;i&&i.match(/^\d+(\.\d*)?%$/)?this._originalWidthPercents=parseFloat(i):this._originalWidthPercents=function(t,e){const n=t.parentElement,o=parseFloat(n.ownerDocument.defaultView.getComputedStyle(n).width);return e.width/o*100}(n,o)}update(t){this.proposedWidth=t.width,this.proposedHeight=t.height,this.proposedWidthPercents=t.widthPercents,this.proposedHandleHostWidth=t.handleHostWidth,this.proposedHandleHostHeight=t.handleHostHeight}}function Mb(t){return`ck-widget__resizer__handle-${t}`}class Lb extends _u{constructor(){super();const t=this.bindTemplate;this.setTemplate({tag:"div",attributes:{class:["ck","ck-size-view",t.to("_viewPosition",(t=>t?`ck-orientation-${t}`:""))],style:{display:t.if("_isVisible","none",(t=>!t))}},children:[{text:t.to("_label")}]})}_bindToState(t,e){this.bind("_isVisible").to(e,"proposedWidth",e,"proposedHeight",((t,e)=>null!==t&&null!==e)),this.bind("_label").to(e,"proposedHandleHostWidth",e,"proposedHandleHostHeight",e,"proposedWidthPercents",((e,n,o)=>"px"===t.unit?`${e}×${n}`:`${o}%`)),this.bind("_viewPosition").to(e,"activeHandlePosition",e,"proposedHandleHostWidth",e,"proposedHandleHostHeight",((t,e,n)=>e<50||n<50?"above-center":t))}_dismiss(){this.unbind(),this._isVisible=!1}}class Hb extends(q()){constructor(t){super(),this._options=t,this._viewResizerWrapper=null,this.set("isEnabled",!0),this.set("isSelected",!1),this.bind("isVisible").to(this,"isEnabled",this,"isSelected",((t,e)=>t&&e)),this.decorate("begin"),this.decorate("cancel"),this.decorate("commit"),this.decorate("updateSize"),this.on("commit",(t=>{this.state.proposedWidth||this.state.proposedWidthPercents||(this._cleanup(),t.stop())}),{priority:"high"})}get state(){return this._state}show(){this._options.editor.editing.view.change((t=>{t.removeClass("ck-hidden",this._viewResizerWrapper)}))}hide(){this._options.editor.editing.view.change((t=>{t.addClass("ck-hidden",this._viewResizerWrapper)}))}attach(){const t=this,e=this._options.viewElement;this._options.editor.editing.view.change((n=>{const o=n.createUIElement("div",{class:"ck ck-reset_all ck-widget__resizer"},(function(e){const n=this.toDomElement(e);return t._appendHandles(n),t._appendSizeUI(n),n}));n.insert(n.createPositionAt(e,"end"),o),n.addClass("ck-widget_with-resizer",e),this._viewResizerWrapper=o,this.isVisible||this.hide()})),this.on("change:isVisible",(()=>{this.isVisible?(this.show(),this.redraw()):this.hide()}))}begin(t){this._state=new Nb(this._options),this._sizeView._bindToState(this._options,this.state),this._initialViewWidth=this._options.viewElement.getStyle("width"),this.state.begin(t,this._getHandleHost(),this._getResizeHost())}updateSize(t){const e=this._proposeNewSize(t);this._options.editor.editing.view.change((t=>{const n=this._options.unit||"%",o=("%"===n?e.widthPercents:e.width)+n;t.setStyle("width",o,this._options.viewElement)}));const n=this._getHandleHost(),o=new No(n),i=Math.round(o.width),r=Math.round(o.height),s=new No(n);e.width=Math.round(s.width),e.height=Math.round(s.height),this.redraw(o),this.state.update({...e,handleHostWidth:i,handleHostHeight:r})}commit(){const t=this._options.unit||"%",e=("%"===t?this.state.proposedWidthPercents:this.state.proposedWidth)+t;this._options.editor.editing.view.change((()=>{this._cleanup(),this._options.onCommit(e)}))}cancel(){this._cleanup()}destroy(){this.cancel()}redraw(t){const e=this._domResizerWrapper;if(!((n=e)&&n.ownerDocument&&n.ownerDocument.contains(n)))return;var n;const o=e.parentElement,i=this._getHandleHost(),r=this._viewResizerWrapper,s=[r.getStyle("width"),r.getStyle("height"),r.getStyle("left"),r.getStyle("top")];let a;if(o.isSameNode(i)){const e=t||new No(i);a=[e.width+"px",e.height+"px",void 0,void 0]}else a=[i.offsetWidth+"px",i.offsetHeight+"px",i.offsetLeft+"px",i.offsetTop+"px"];"same"!==J(s,a)&&this._options.editor.editing.view.change((t=>{t.setStyle({width:a[0],height:a[1],left:a[2],top:a[3]},r)}))}containsHandle(t){return this._domResizerWrapper.contains(t)}static isResizeHandle(t){return t.classList.contains("ck-widget__resizer__handle")}_cleanup(){this._sizeView._dismiss();this._options.editor.editing.view.change((t=>{t.setStyle("width",this._initialViewWidth,this._options.viewElement)}))}_proposeNewSize(t){const e=this.state,n={x:(o=t).pageX,y:o.pageY};var o;const i=!this._options.isCentered||this._options.isCentered(this),r={x:e._referenceCoordinates.x-(n.x+e.originalWidth),y:n.y-e.originalHeight-e._referenceCoordinates.y};i&&e.activeHandlePosition.endsWith("-right")&&(r.x=n.x-(e._referenceCoordinates.x+e.originalWidth)),i&&(r.x*=2);let s=Math.abs(e.originalWidth+r.x),a=Math.abs(e.originalHeight+r.y);return"width"==(s/e.aspectRatio>a?"width":"height")?a=s/e.aspectRatio:s=a*e.aspectRatio,{width:Math.round(s),height:Math.round(a),widthPercents:Math.min(Math.round(e.originalWidthPercents/e.originalWidth*s*100)/100,100)}}_getResizeHost(){const t=this._domResizerWrapper.parentElement;return this._options.getResizeHost(t)}_getHandleHost(){const t=this._domResizerWrapper.parentElement;return this._options.getHandleHost(t)}get _domResizerWrapper(){return this._options.editor.editing.view.domConverter.mapViewToDom(this._viewResizerWrapper)}_appendHandles(t){const e=["top-left","top-right","bottom-right","bottom-left"];for(const o of e)t.appendChild(new Yh({tag:"div",attributes:{class:"ck-widget__resizer__handle "+(n=o,`ck-widget__resizer__handle-${n}`)}}).render());var n}_appendSizeUI(t){this._sizeView=new Lb,this._sizeView.render(),t.appendChild(this._sizeView.element)}}const qb=function(t,e,n){var o=!0,i=!0;if("function"!=typeof t)throw new TypeError("Expected a function");return V(n)&&(o="leading"in n?!!n.leading:o,i="trailing"in n?!!n.trailing:i),Ba(t,e,{leading:o,maxWait:e,trailing:i})};var Wb=n(8506),jb={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Wb.Z,jb);Wb.Z.locals;class Ub extends Ii{static get pluginName(){return"WidgetResize"}init(){const t=this.editor.editing,e=Po.window.document;this.set("selectedResizer",null),this.set("_activeResizer",null),this._resizers=new Map,t.view.addObserver(ih),this._observer=new(Do()),this.listenTo(t.view.document,"mousedown",this._mouseDownListener.bind(this),{priority:"high"}),this._observer.listenTo(e,"mousemove",this._mouseMoveListener.bind(this)),this._observer.listenTo(e,"mouseup",this._mouseUpListener.bind(this)),this._redrawSelectedResizerThrottled=qb((()=>this.redrawSelectedResizer()),200),this.editor.ui.on("update",this._redrawSelectedResizerThrottled),this.editor.model.document.on("change",(()=>{for(const[t,e]of this._resizers)t.isAttached()||(this._resizers.delete(t),e.destroy())}),{priority:"lowest"}),this._observer.listenTo(Po.window,"resize",this._redrawSelectedResizerThrottled);const n=this.editor.editing.view.document.selection;n.on("change",(()=>{const t=n.getSelectedElement(),e=this.getResizerByViewElement(t)||null;e?this.select(e):this.deselect()}))}redrawSelectedResizer(){this.selectedResizer&&this.selectedResizer.isVisible&&this.selectedResizer.redraw()}destroy(){super.destroy(),this._observer.stopListening();for(const t of this._resizers.values())t.destroy();this._redrawSelectedResizerThrottled.cancel()}select(t){this.deselect(),this.selectedResizer=t,this.selectedResizer.isSelected=!0}deselect(){this.selectedResizer&&(this.selectedResizer.isSelected=!1),this.selectedResizer=null}attachTo(t){const e=new Hb(t),n=this.editor.plugins;if(e.attach(),n.has("WidgetToolbarRepository")){const t=n.get("WidgetToolbarRepository");e.on("begin",(()=>{t.forceDisabled("resize")}),{priority:"lowest"}),e.on("cancel",(()=>{t.clearForceDisabled("resize")}),{priority:"highest"}),e.on("commit",(()=>{t.clearForceDisabled("resize")}),{priority:"highest"})}this._resizers.set(t.viewElement,e);const o=this.editor.editing.view.document.selection.getSelectedElement();return this.getResizerByViewElement(o)==e&&this.select(e),e}getResizerByViewElement(t){return this._resizers.get(t)}_getResizerByHandle(t){for(const e of this._resizers.values())if(e.containsHandle(t))return e}_mouseDownListener(t,e){const n=e.domTarget;Hb.isResizeHandle(n)&&(this._activeResizer=this._getResizerByHandle(n)||null,this._activeResizer&&(this._activeResizer.begin(n),t.stop(),e.preventDefault()))}_mouseMoveListener(t,e){this._activeResizer&&this._activeResizer.updateSize(e)}_mouseUpListener(){this._activeResizer&&(this._activeResizer.commit(),this._activeResizer=null)}}class $b extends Ri{refresh(){const t=this.editor.plugins.get("ImageUtils").getClosestSelectedImageElement(this.editor.model.document.selection);this.isEnabled=!!t,this.isEnabled&&t.hasAttribute("alt")?this.value=t.getAttribute("alt"):this.value=!1}execute(t){const e=this.editor,n=e.plugins.get("ImageUtils"),o=e.model,i=n.getClosestSelectedImageElement(o.document.selection);o.change((e=>{e.setAttribute("alt",t.newValue,i)}))}}function Gb(t){return t.createContainerElement("figure",{class:"image"},[t.createEmptyElement("img"),t.createSlot()])}function Kb(t,e){const n=t.plugins.get("ImageUtils"),o=t.plugins.has("ImageInlineEditing")&&t.plugins.has("ImageBlockEditing");return t=>{if(!n.isInlineImageView(t))return null;if(!o)return i(t);return("block"==t.getStyle("display")||t.findAncestor(n.isBlockImageView)?"imageBlock":"imageInline")!==e?null:i(t)};function i(t){const e={name:!0};return t.hasAttribute("src")&&(e.attributes=["src"]),e}}function Zb(t,e){const n=vi(e.getSelectedBlocks());return!n||t.isObject(n)||n.isEmpty&&"listItem"!=n.name?"imageBlock":"imageInline"}class Jb extends Ii{static get pluginName(){return"ImageUtils"}isImage(t){return this.isInlineImage(t)||this.isBlockImage(t)}isInlineImageView(t){return!!t&&t.is("element","img")}isBlockImageView(t){return!!t&&t.is("element","figure")&&t.hasClass("image")}insertImage(t={},e=null,n=null){const o=this.editor,i=o.model,r=i.document.selection;n=Yb(o,e||r,n),t={...Object.fromEntries(r.getAttributes()),...t};for(const e in t)i.schema.checkAttribute(n,e)||delete t[e];return i.change((o=>{const r=o.createElement(n,t);return i.insertObject(r,e,null,{setSelection:"on",findOptimalPosition:!e&&"imageInline"!=n}),r.parent?r:null}))}getClosestSelectedImageWidget(t){const e=t.getFirstPosition();if(!e)return null;const n=t.getSelectedElement();if(n&&this.isImageWidget(n))return n;let o=e.parent;for(;o;){if(o.is("element")&&this.isImageWidget(o))return o;o=o.parent}return null}getClosestSelectedImageElement(t){const e=t.getSelectedElement();return this.isImage(e)?e:t.getFirstPosition().findAncestor("imageBlock")}isImageAllowed(){const t=this.editor.model.document.selection;return function(t,e){if("imageBlock"==Yb(t,e)){const n=function(t,e){const n=fb(t,e).start.parent;if(n.isEmpty&&!n.is("element","$root"))return n.parent;return n}(e,t.model);if(t.model.schema.checkChild(n,"imageBlock"))return!0}else if(t.model.schema.checkChild(e.focus,"imageInline"))return!0;return!1}(this.editor,t)&&function(t){return[...t.focus.getAncestors()].every((t=>!t.is("element","imageBlock")))}(t)}toImageWidget(t,e,n){e.setCustomProperty("image",!0,t);return hb(t,e,{label:()=>{const e=this.findViewImgElement(t).getAttribute("alt");return e?`${e} ${n}`:n}})}isImageWidget(t){return!!t.getCustomProperty("image")&&db(t)}isBlockImage(t){return!!t&&t.is("element","imageBlock")}isInlineImage(t){return!!t&&t.is("element","imageInline")}findViewImgElement(t){if(this.isInlineImageView(t))return t;const e=this.editor.editing.view;for(const{item:n}of e.createRangeIn(t))if(this.isInlineImageView(n))return n}}function Yb(t,e,n){const o=t.model.schema,i=t.config.get("image.insert.type");return t.plugins.has("ImageBlockEditing")?t.plugins.has("ImageInlineEditing")?n||("inline"===i?"imageInline":"block"===i?"imageBlock":e.is("selection")?Zb(o,e):o.checkChild(e,"imageInline")?"imageInline":"imageBlock"):"imageBlock":"imageInline"}class Qb extends Ii{static get requires(){return[Jb]}static get pluginName(){return"ImageTextAlternativeEditing"}init(){this.editor.commands.add("imageTextAlternative",new $b(this.editor))}}var Xb=n(1905),tk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Xb.Z,tk);Xb.Z.locals;class ek extends _u{constructor(t){super(t);const e=this.locale.t;this.focusTracker=new yi,this.keystrokes=new xi,this.labeledInput=this._createLabeledInputView(),this.saveButtonView=this._createButton(e("Save"),Lu.check,"ck-button-save"),this.saveButtonView.type="submit",this.cancelButtonView=this._createButton(e("Cancel"),Lu.cancel,"ck-button-cancel","cancel"),this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"form",attributes:{class:["ck","ck-text-alternative-form","ck-responsive-form"],tabindex:"-1"},children:[this.labeledInput,this.saveButtonView,this.cancelButtonView]}),qu(this)}render(){super.render(),this.keystrokes.listenTo(this.element),Wu({view:this}),[this.labeledInput,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)}))}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}_createButton(t,e,n,o){const i=new Yu(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}_createLabeledInputView(){const t=this.locale.t,e=new am(this.locale,lm);return e.label=t("Text alternative"),e}}function nk(t){const e=t.editing.view,n=xu.defaultPositions,o=t.plugins.get("ImageUtils");return{target:e.domConverter.mapViewToDom(o.getClosestSelectedImageWidget(e.document.selection)),positions:[n.northArrowSouth,n.northArrowSouthWest,n.northArrowSouthEast,n.southArrowNorth,n.southArrowNorthWest,n.southArrowNorthEast,n.viewportStickyNorth]}}class ok extends Ii{static get requires(){return[wm]}static get pluginName(){return"ImageTextAlternativeUI"}init(){this._createButton(),this._createForm()}destroy(){super.destroy(),this._form.destroy()}_createButton(){const t=this.editor,e=t.t;t.ui.componentFactory.add("imageTextAlternative",(n=>{const o=t.commands.get("imageTextAlternative"),i=new Yu(n);return i.set({label:e("Change image text alternative"),icon:Lu.lowVision,tooltip:!0}),i.bind("isEnabled").to(o,"isEnabled"),i.bind("isOn").to(o,"value",(t=>!!t)),this.listenTo(i,"execute",(()=>{this._showForm()})),i}))}_createForm(){const t=this.editor,e=t.editing.view.document,n=t.plugins.get("ImageUtils");this._balloon=this.editor.plugins.get("ContextualBalloon"),this._form=new ek(t.locale),this._form.render(),this.listenTo(this._form,"submit",(()=>{t.execute("imageTextAlternative",{newValue:this._form.labeledInput.fieldView.element.value}),this._hideForm(!0)})),this.listenTo(this._form,"cancel",(()=>{this._hideForm(!0)})),this._form.keystrokes.set("Esc",((t,e)=>{this._hideForm(!0),e()})),this.listenTo(t.ui,"update",(()=>{n.getClosestSelectedImageWidget(e.selection)?this._isVisible&&function(t){const e=t.plugins.get("ContextualBalloon");if(t.plugins.get("ImageUtils").getClosestSelectedImageWidget(t.editing.view.document.selection)){const n=nk(t);e.updatePosition(n)}}(t):this._hideForm(!0)})),Hu({emitter:this._form,activator:()=>this._isVisible,contextElements:[this._balloon.view.element],callback:()=>this._hideForm()})}_showForm(){if(this._isVisible)return;const t=this.editor,e=t.commands.get("imageTextAlternative"),n=this._form.labeledInput;this._form.disableCssTransitions(),this._isInBalloon||this._balloon.add({view:this._form,position:nk(t)}),n.fieldView.value=n.fieldView.element.value=e.value||"",this._form.labeledInput.fieldView.select(),this._form.enableCssTransitions()}_hideForm(t){this._isInBalloon&&(this._form.focusTracker.isFocused&&this._form.saveButtonView.focus(),this._balloon.remove(this._form),t&&this.editor.editing.view.focus())}get _isVisible(){return this._balloon.visibleView===this._form}get _isInBalloon(){return this._balloon.hasView(this._form)}}class ik extends Ii{static get requires(){return[Qb,ok]}static get pluginName(){return"ImageTextAlternative"}}class rk extends fa{constructor(t){super(t);const e=this.document;function n(t){return(n,o)=>{o.preventDefault();const i=o.dropRange?[o.dropRange]:null,r=new u(e,t);e.fire(r,{dataTransfer:o.dataTransfer,method:n.name,targetRanges:i,target:o.target}),r.stop.called&&o.stopPropagation()}}this.domEventType=["paste","copy","cut","drop","dragover","dragstart","dragend","dragenter","dragleave"],this.listenTo(e,"paste",n("clipboardInput"),{priority:"low"}),this.listenTo(e,"drop",n("clipboardInput"),{priority:"low"}),this.listenTo(e,"dragover",n("dragging"),{priority:"low"})}onDomEvent(t){const e={dataTransfer:new il("clipboardData"in t?t.clipboardData:t.dataTransfer)};"drop"!=t.type&&"dragover"!=t.type||(e.dropRange=function(t,e){const n=e.target.ownerDocument,o=e.clientX,i=e.clientY;let r;n.caretRangeFromPoint&&n.caretRangeFromPoint(o,i)?r=n.caretRangeFromPoint(o,i):e.rangeParent&&(r=n.createRange(),r.setStart(e.rangeParent,e.rangeOffset),r.collapse(!0));if(r)return t.domConverter.domRangeToView(r);return null}(this.view,t)),this.fire(t.type,t,e)}}const sk=["figcaption","li"];function ak(t){let e="";if(t.is("$text")||t.is("$textProxy"))e=t.data;else if(t.is("element","img")&&t.hasAttribute("alt"))e=t.getAttribute("alt");else if(t.is("element","br"))e="\n";else{let n=null;for(const o of t.getChildren()){const t=ak(o);n&&(n.is("containerElement")||o.is("containerElement"))&&(sk.includes(n.name)||sk.includes(o.name)?e+="\n":e+="\n\n"),e+=t,n=o}}return e}class lk extends Ii{static get pluginName(){return"ClipboardPipeline"}init(){this.editor.editing.view.addObserver(rk),this._setupPasteDrop(),this._setupCopyCut()}_setupPasteDrop(){const t=this.editor,e=t.model,n=t.editing.view,o=n.document;this.listenTo(o,"clipboardInput",(e=>{t.isReadOnly&&e.stop()}),{priority:"highest"}),this.listenTo(o,"clipboardInput",((t,e)=>{const o=e.dataTransfer;let i;if(e.content)i=e.content;else{let t="";o.getData("text/html")?t=function(t){return t.replace(/<span(?: class="Apple-converted-space"|)>(\s+)<\/span>/g,((t,e)=>1==e.length?" ":e)).replace(/<!--[\s\S]*?-->/g,"")}(o.getData("text/html")):o.getData("text/plain")&&(((r=(r=o.getData("text/plain")).replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/\r?\n\r?\n/g,"</p><p>").replace(/\r?\n/g,"<br>").replace(/\t/g,"&nbsp;&nbsp;&nbsp;&nbsp;").replace(/^\s/,"&nbsp;").replace(/\s$/,"&nbsp;").replace(/\s\s/g," &nbsp;")).includes("</p><p>")||r.includes("<br>"))&&(r=`<p>${r}</p>`),t=r),i=this.editor.data.htmlProcessor.toView(t)}var r;const s=new u(this,"inputTransformation");this.fire(s,{content:i,dataTransfer:o,targetRanges:e.targetRanges,method:e.method}),s.stop.called&&t.stop(),n.scrollToTheSelection()}),{priority:"low"}),this.listenTo(this,"inputTransformation",((t,n)=>{if(n.content.isEmpty)return;const o=this.editor.data.toModel(n.content,"$clipboardHolder");0!=o.childCount&&(t.stop(),e.change((()=>{this.fire("contentInsertion",{content:o,method:n.method,dataTransfer:n.dataTransfer,targetRanges:n.targetRanges})})))}),{priority:"low"}),this.listenTo(this,"contentInsertion",((t,n)=>{n.resultRange=e.insertContent(n.content)}),{priority:"low"})}_setupCopyCut(){const t=this.editor,e=t.model.document,n=t.editing.view.document,o=(o,i)=>{const r=i.dataTransfer;i.preventDefault();const s=t.data.toView(t.model.getSelectedContent(e.selection));n.fire("clipboardOutput",{dataTransfer:r,content:s,method:o.name})};this.listenTo(n,"copy",o,{priority:"low"}),this.listenTo(n,"cut",((e,n)=>{t.isReadOnly?n.preventDefault():o(e,n)}),{priority:"low"}),this.listenTo(n,"clipboardOutput",((n,o)=>{o.content.isEmpty||(o.dataTransfer.setData("text/html",this.editor.data.htmlProcessor.toData(o.content)),o.dataTransfer.setData("text/plain",ak(o.content))),"cut"==o.method&&t.model.deleteContent(e.selection)}),{priority:"low"})}}var ck=n(903),dk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(ck.Z,dk);ck.Z.locals;class hk extends Ii{static get pluginName(){return"DragDrop"}static get requires(){return[lk,Rb]}init(){const t=this.editor,e=t.editing.view;this._draggedRange=null,this._draggingUid="",this._draggableElement=null,this._updateDropMarkerThrottled=qb((t=>this._updateDropMarker(t)),40),this._removeDropMarkerDelayed=mk((()=>this._removeDropMarker()),40),this._clearDraggableAttributesDelayed=mk((()=>this._clearDraggableAttributes()),40),e.addObserver(rk),e.addObserver(ih),this._setupDragging(),this._setupContentInsertionIntegration(),this._setupClipboardInputIntegration(),this._setupDropMarker(),this._setupDraggableAttributeHandling(),this.listenTo(t,"change:isReadOnly",((t,e,n)=>{n?this.forceDisabled("readOnlyMode"):this.clearForceDisabled("readOnlyMode")})),this.on("change:isEnabled",((t,e,n)=>{n||this._finalizeDragging(!1)})),i.isAndroid&&this.forceDisabled("noAndroidSupport")}destroy(){return this._draggedRange&&(this._draggedRange.detach(),this._draggedRange=null),this._updateDropMarkerThrottled.cancel(),this._removeDropMarkerDelayed.cancel(),this._clearDraggableAttributesDelayed.cancel(),super.destroy()}_setupDragging(){const t=this.editor,e=t.model,n=e.document,o=t.editing.view,r=o.document;this.listenTo(r,"dragstart",((o,i)=>{const s=n.selection;if(i.target&&i.target.is("editableElement"))return void i.preventDefault();const a=i.target?pk(i.target):null;if(a){const n=t.editing.mapper.toModelElement(a);this._draggedRange=Vl.fromRange(e.createRangeOn(n)),t.plugins.has("WidgetToolbarRepository")&&t.plugins.get("WidgetToolbarRepository").forceDisabled("dragDrop")}else if(!r.selection.isCollapsed){const t=r.selection.getSelectedElement();t&&db(t)||(this._draggedRange=Vl.fromRange(s.getFirstRange()))}if(!this._draggedRange)return void i.preventDefault();this._draggingUid=m(),i.dataTransfer.effectAllowed=this.isEnabled?"copyMove":"copy",i.dataTransfer.setData("application/ckeditor5-dragging-uid",this._draggingUid);const l=e.createSelection(this._draggedRange.toRange()),c=t.data.toView(e.getSelectedContent(l));r.fire("clipboardOutput",{dataTransfer:i.dataTransfer,content:c,method:"dragstart"}),this.isEnabled||(this._draggedRange.detach(),this._draggedRange=null,this._draggingUid="")}),{priority:"low"}),this.listenTo(r,"dragend",((t,e)=>{this._finalizeDragging(!e.dataTransfer.isCanceled&&"move"==e.dataTransfer.dropEffect)}),{priority:"low"}),this.listenTo(r,"dragenter",(()=>{this.isEnabled&&o.focus()})),this.listenTo(r,"dragleave",(()=>{this._removeDropMarkerDelayed()})),this.listenTo(r,"dragging",((e,n)=>{if(!this.isEnabled)return void(n.dataTransfer.dropEffect="none");this._removeDropMarkerDelayed.cancel();const o=uk(t,n.targetRanges,n.target);this._draggedRange||(n.dataTransfer.dropEffect="copy"),i.isGecko||("copy"==n.dataTransfer.effectAllowed?n.dataTransfer.dropEffect="copy":["all","copyMove"].includes(n.dataTransfer.effectAllowed)&&(n.dataTransfer.dropEffect="move")),o&&this._updateDropMarkerThrottled(o)}),{priority:"low"})}_setupClipboardInputIntegration(){const t=this.editor,e=t.editing.view.document;this.listenTo(e,"clipboardInput",((e,n)=>{if("drop"!=n.method)return;const o=uk(t,n.targetRanges,n.target);if(this._removeDropMarker(),!o)return this._finalizeDragging(!1),void e.stop();this._draggedRange&&this._draggingUid!=n.dataTransfer.getData("application/ckeditor5-dragging-uid")&&(this._draggedRange.detach(),this._draggedRange=null,this._draggingUid="");if("move"==gk(n.dataTransfer)&&this._draggedRange&&this._draggedRange.containsRange(o,!0))return this._finalizeDragging(!1),void e.stop();n.targetRanges=[t.editing.mapper.toViewRange(o)]}),{priority:"high"})}_setupContentInsertionIntegration(){const t=this.editor.plugins.get(lk);t.on("contentInsertion",((t,e)=>{if(!this.isEnabled||"drop"!==e.method)return;const n=e.targetRanges.map((t=>this.editor.editing.mapper.toModelRange(t)));this.editor.model.change((t=>t.setSelection(n)))}),{priority:"high"}),t.on("contentInsertion",((t,e)=>{if(!this.isEnabled||"drop"!==e.method)return;const n="move"==gk(e.dataTransfer),o=!e.resultRange||!e.resultRange.isCollapsed;this._finalizeDragging(o&&n)}),{priority:"lowest"})}_setupDraggableAttributeHandling(){const t=this.editor,e=t.editing.view,n=e.document;this.listenTo(n,"mousedown",((o,r)=>{if(i.isAndroid||!r)return;this._clearDraggableAttributesDelayed.cancel();let s=pk(r.target);if(i.isBlink&&!t.isReadOnly&&!s&&!n.selection.isCollapsed){const t=n.selection.getSelectedElement();t&&db(t)||(s=n.selection.editableElement)}s&&(e.change((t=>{t.setAttribute("draggable","true",s)})),this._draggableElement=t.editing.mapper.toModelElement(s))})),this.listenTo(n,"mouseup",(()=>{i.isAndroid||this._clearDraggableAttributesDelayed()}))}_clearDraggableAttributes(){const t=this.editor.editing;t.view.change((e=>{this._draggableElement&&"$graveyard"!=this._draggableElement.root.rootName&&e.removeAttribute("draggable",t.mapper.toViewElement(this._draggableElement)),this._draggableElement=null}))}_setupDropMarker(){const t=this.editor;t.conversion.for("editingDowncast").markerToHighlight({model:"drop-target",view:{classes:["ck-clipboard-drop-target-range"]}}),t.conversion.for("editingDowncast").markerToElement({model:"drop-target",view:(e,{writer:n})=>{if(t.model.schema.checkChild(e.markerRange.start,"$text"))return n.createUIElement("span",{class:"ck ck-clipboard-drop-target-position"},(function(t){const e=this.toDomElement(t);return e.append("⁠",t.createElement("span"),"⁠"),e}))}})}_updateDropMarker(t){const e=this.editor,n=e.model.markers;e.model.change((e=>{n.has("drop-target")?n.get("drop-target").getRange().isEqual(t)||e.updateMarker("drop-target",{range:t}):e.addMarker("drop-target",{range:t,usingOperation:!1,affectsData:!1})}))}_removeDropMarker(){const t=this.editor.model;this._removeDropMarkerDelayed.cancel(),this._updateDropMarkerThrottled.cancel(),t.markers.has("drop-target")&&t.change((t=>{t.removeMarker("drop-target")}))}_finalizeDragging(t){const e=this.editor,n=e.model;this._removeDropMarker(),this._clearDraggableAttributes(),e.plugins.has("WidgetToolbarRepository")&&e.plugins.get("WidgetToolbarRepository").clearForceDisabled("dragDrop"),this._draggingUid="",this._draggedRange&&(t&&this.isEnabled&&n.deleteContent(n.createSelection(this._draggedRange),{doNotAutoparagraph:!0}),this._draggedRange.detach(),this._draggedRange=null)}}function uk(t,e,n){const o=t.model,r=t.editing.mapper;let s=null;const a=e?e[0].start:null;if(n.is("uiElement")&&(n=n.parent),s=function(t,e){const n=t.model,o=t.editing.mapper;if(db(e))return n.createRangeOn(o.toModelElement(e));if(!e.is("editableElement")){const t=e.findAncestor((t=>db(t)||t.is("editableElement")));if(db(t))return n.createRangeOn(o.toModelElement(t))}return null}(t,n),s)return s;const l=function(t,e){const n=t.editing.mapper,o=t.editing.view,i=n.toModelElement(e);if(i)return i;const r=o.createPositionBefore(e),s=n.findMappedViewAncestor(r);return n.toModelElement(s)}(t,n),c=a?r.toModelPosition(a):null;return c?(s=function(t,e,n){const o=t.model;if(!o.schema.checkChild(n,"$block"))return null;const i=o.createPositionAt(n,0),r=e.path.slice(0,i.path.length),s=o.createPositionFromPath(e.root,r).nodeAfter;if(s&&o.schema.isObject(s))return o.createRangeOn(s);return null}(t,c,l),s||(s=o.schema.getNearestSelectionRange(c,i.isGecko?"forward":"backward"),s||function(t,e){const n=t.model;let o=e;for(;o;){if(n.schema.isObject(o))return n.createRangeOn(o);o=o.parent}return null}(t,c.parent))):function(t,e){const n=t.model,o=n.schema,i=n.createPositionAt(e,0);return o.getNearestSelectionRange(i,"forward")}(t,l)}function gk(t){return i.isGecko?t.dropEffect:["all","copyMove"].includes(t.effectAllowed)?"move":"copy"}function mk(t,e){let n;function o(...i){o.cancel(),n=setTimeout((()=>t(...i)),e)}return o.cancel=()=>{clearTimeout(n)},o}function pk(t){if(t.is("editableElement"))return null;if(t.hasClass("ck-widget__selection-handle"))return t.findAncestor(db);if(db(t))return t;const e=t.findAncestor((t=>db(t)||t.is("editableElement")));return db(e)?e:null}class fk extends Ii{static get pluginName(){return"PastePlainText"}static get requires(){return[lk]}init(){const t=this.editor,e=t.model,n=t.editing.view,o=n.document,i=e.document.selection;let r=!1;n.addObserver(rk),this.listenTo(o,"keydown",((t,e)=>{r=e.shiftKey})),t.plugins.get(lk).on("contentInsertion",((t,n)=>{(r||function(t,e){if(t.childCount>1)return!1;const n=t.getChild(0);if(e.isObject(n))return!1;return 0==Array.from(n.getAttributeKeys()).length}(n.content,e.schema))&&e.change((t=>{const o=Array.from(i.getAttributes()).filter((([t])=>e.schema.getAttributeProperties(t).isFormatting));i.isCollapsed||e.deleteContent(i,{doNotAutoparagraph:!0}),o.push(...i.getAttributes());const r=t.createRangeIn(n.content);for(const e of r.getItems())e.is("$textProxy")&&t.setAttributes(o,e)}))}))}}class bk extends Ii{static get pluginName(){return"Clipboard"}static get requires(){return[lk,hk,fk]}}function kk(t,e){return t=>{t.on(`attribute:srcset:${e}`,n)};function n(e,n,o){if(!o.consumable.consume(n.item,e.name))return;const i=o.writer,r=o.mapper.toViewElement(n.item),s=t.findViewImgElement(r);if(null===n.attributeNewValue){const t=n.attributeOldValue;t.data&&(i.removeAttribute("srcset",s),i.removeAttribute("sizes",s),t.width&&i.removeAttribute("width",s))}else{const t=n.attributeNewValue;t.data&&(i.setAttribute("srcset",t.data,s),i.setAttribute("sizes","100vw",s),t.width&&i.setAttribute("width",t.width,s))}}}function wk(t,e,n){return t=>{t.on(`attribute:${n}:${e}`,o)};function o(e,n,o){if(!o.consumable.consume(n.item,e.name))return;const i=o.writer,r=o.mapper.toViewElement(n.item),s=t.findViewImgElement(r);i.setAttribute(n.attributeKey,n.attributeNewValue||"",s)}}class _k extends ga{observe(t){this.listenTo(t,"load",((t,e)=>{const n=e.target;this.checkShouldIgnoreEventFromTarget(n)||"IMG"==n.tagName&&this._fireEvents(e)}),{useCapture:!0})}_fireEvents(t){this.isEnabled&&(this.document.fire("layoutChanged"),this.document.fire("imageLoaded",t))}}class Ak extends Ri{constructor(t){super(t);const e=t.config.get("image.insert.type");t.plugins.has("ImageBlockEditing")||"block"===e&&k("image-block-plugin-required"),t.plugins.has("ImageInlineEditing")||"inline"===e&&k("image-inline-plugin-required")}refresh(){this.isEnabled=this.editor.plugins.get("ImageUtils").isImageAllowed()}execute(t){const e=bi(t.source),n=this.editor.model.document.selection,o=this.editor.plugins.get("ImageUtils"),i=Object.fromEntries(n.getAttributes());e.forEach(((t,e)=>{const r=n.getSelectedElement();if("string"==typeof t&&(t={src:t}),e&&r&&o.isImage(r)){const e=this.editor.model.createPositionAfter(r);o.insertImage({...t,...i},e)}else o.insertImage({...t,...i})}))}}class Ck extends Ii{static get requires(){return[Jb]}static get pluginName(){return"ImageEditing"}init(){const t=this.editor,e=t.conversion;t.editing.view.addObserver(_k),e.for("upcast").attributeToAttribute({view:{name:"img",key:"alt"},model:"alt"}).attributeToAttribute({view:{name:"img",key:"srcset"},model:{key:"srcset",value:t=>{const e={data:t.getAttribute("srcset")};return t.hasAttribute("width")&&(e.width=t.getAttribute("width")),e}}});const n=new Ak(t);t.commands.add("insertImage",n),t.commands.add("imageInsert",n)}}class vk extends Ri{constructor(t,e){super(t),this._modelElementName=e}refresh(){const t=this.editor.plugins.get("ImageUtils"),e=t.getClosestSelectedImageElement(this.editor.model.document.selection);"imageBlock"===this._modelElementName?this.isEnabled=t.isInlineImage(e):this.isEnabled=t.isBlockImage(e)}execute(){const t=this.editor,e=this.editor.model,n=t.plugins.get("ImageUtils"),o=n.getClosestSelectedImageElement(e.document.selection),i=Object.fromEntries(o.getAttributes());return i.src||i.uploadId?e.change((t=>{const r=Array.from(e.markers).filter((t=>t.getRange().containsItem(o))),s=n.insertImage(i,e.createSelection(o,"on"),this._modelElementName);if(!s)return null;const a=t.createRangeOn(s);for(const e of r){const n=e.getRange(),o="$graveyard"!=n.root.rootName?n.getJoined(a,!0):a;t.updateMarker(e,{range:o})}return{oldElement:o,newElement:s}})):null}}class yk extends Ii{static get requires(){return[Ck,Jb,lk]}static get pluginName(){return"ImageBlockEditing"}init(){const t=this.editor;t.model.schema.register("imageBlock",{inheritAllFrom:"$blockObject",allowAttributes:["alt","src","srcset"]}),this._setupConversion(),t.plugins.has("ImageInlineEditing")&&(t.commands.add("imageTypeBlock",new vk(this.editor,"imageBlock")),this._setupClipboardIntegration())}_setupConversion(){const t=this.editor,e=t.t,n=t.conversion,o=t.plugins.get("ImageUtils");n.for("dataDowncast").elementToStructure({model:"imageBlock",view:(t,{writer:e})=>Gb(e)}),n.for("editingDowncast").elementToStructure({model:"imageBlock",view:(t,{writer:n})=>o.toImageWidget(Gb(n),n,e("image widget"))}),n.for("downcast").add(wk(o,"imageBlock","src")).add(wk(o,"imageBlock","alt")).add(kk(o,"imageBlock")),n.for("upcast").elementToElement({view:Kb(t,"imageBlock"),model:(t,{writer:e})=>e.createElement("imageBlock",t.hasAttribute("src")?{src:t.getAttribute("src")}:null)}).add(function(t){return t=>{t.on("element:figure",e)};function e(e,n,o){if(!o.consumable.test(n.viewItem,{name:!0,classes:"image"}))return;const i=t.findViewImgElement(n.viewItem);if(!i||!o.consumable.test(i,{name:!0}))return;o.consumable.consume(n.viewItem,{name:!0,classes:"image"});const r=vi(o.convertItem(i,n.modelCursor).modelRange.getItems());r?(o.convertChildren(n.viewItem,r),o.updateConversionResult(r,n)):o.consumable.revert(n.viewItem,{name:!0,classes:"image"})}}(o))}_setupClipboardIntegration(){const t=this.editor,e=t.model,n=t.editing.view,o=t.plugins.get("ImageUtils");this.listenTo(t.plugins.get("ClipboardPipeline"),"inputTransformation",((i,r)=>{const s=Array.from(r.content.getChildren());let a;if(!s.every(o.isInlineImageView))return;a=r.targetRanges?t.editing.mapper.toModelRange(r.targetRanges[0]):e.document.selection.getFirstRange();const l=e.createSelection(a);if("imageBlock"===Zb(e.schema,l)){const t=new rh(n.document),e=s.map((e=>t.createElement("figure",{class:"image"},e)));r.content=t.createDocumentFragment(e)}}))}}var xk=n(3508),Ek={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(xk.Z,Ek);xk.Z.locals;class Tk extends Ii{static get requires(){return[yk,Rb,ik]}static get pluginName(){return"ImageBlock"}}class Dk extends Ii{static get requires(){return[Ck,Jb,lk]}static get pluginName(){return"ImageInlineEditing"}init(){const t=this.editor,e=t.model.schema;e.register("imageInline",{inheritAllFrom:"$inlineObject",allowAttributes:["alt","src","srcset"]}),e.addChildCheck(((t,e)=>{if(t.endsWith("caption")&&"imageInline"===e.name)return!1})),this._setupConversion(),t.plugins.has("ImageBlockEditing")&&(t.commands.add("imageTypeInline",new vk(this.editor,"imageInline")),this._setupClipboardIntegration())}_setupConversion(){const t=this.editor,e=t.t,n=t.conversion,o=t.plugins.get("ImageUtils");n.for("dataDowncast").elementToElement({model:"imageInline",view:(t,{writer:e})=>e.createEmptyElement("img")}),n.for("editingDowncast").elementToStructure({model:"imageInline",view:(t,{writer:n})=>o.toImageWidget(function(t){return t.createContainerElement("span",{class:"image-inline"},t.createEmptyElement("img"))}(n),n,e("image widget"))}),n.for("downcast").add(wk(o,"imageInline","src")).add(wk(o,"imageInline","alt")).add(kk(o,"imageInline")),n.for("upcast").elementToElement({view:Kb(t,"imageInline"),model:(t,{writer:e})=>e.createElement("imageInline",t.hasAttribute("src")?{src:t.getAttribute("src")}:null)})}_setupClipboardIntegration(){const t=this.editor,e=t.model,n=t.editing.view,o=t.plugins.get("ImageUtils");this.listenTo(t.plugins.get("ClipboardPipeline"),"inputTransformation",((i,r)=>{const s=Array.from(r.content.getChildren());let a;if(!s.every(o.isBlockImageView))return;a=r.targetRanges?t.editing.mapper.toModelRange(r.targetRanges[0]):e.document.selection.getFirstRange();const l=e.createSelection(a);if("imageInline"===Zb(e.schema,l)){const t=new rh(n.document),e=s.map((e=>1===e.childCount?(Array.from(e.getAttributes()).forEach((n=>t.setAttribute(...n,o.findViewImgElement(e)))),e.getChild(0)):e));r.content=t.createDocumentFragment(e)}}))}}class Sk extends Ii{static get requires(){return[Dk,Rb,ik]}static get pluginName(){return"ImageInline"}}class Bk extends Ri{refresh(){const t=this.editor,e=t.plugins.get("ImageCaptionUtils");if(!t.plugins.has(yk))return this.isEnabled=!1,void(this.value=!1);const n=t.model.document.selection,o=n.getSelectedElement();if(!o){const t=e.getCaptionFromModelSelection(n);return this.isEnabled=!!t,void(this.value=!!t)}this.isEnabled=this.editor.plugins.get("ImageUtils").isImage(o),this.isEnabled?this.value=!!e.getCaptionFromImageModelElement(o):this.value=!1}execute(t={}){const{focusCaptionOnShow:e}=t;this.editor.model.change((t=>{this.value?this._hideImageCaption(t):this._showImageCaption(t,e)}))}_showImageCaption(t,e){const n=this.editor.model.document.selection,o=this.editor.plugins.get("ImageCaptionEditing");let i=n.getSelectedElement();const r=o._getSavedCaption(i);this.editor.plugins.get("ImageUtils").isInlineImage(i)&&(this.editor.execute("imageTypeBlock"),i=n.getSelectedElement());const s=r||t.createElement("caption");t.append(s,i),e&&t.setSelection(s,"in")}_hideImageCaption(t){const e=this.editor,n=e.model.document.selection,o=e.plugins.get("ImageCaptionEditing"),i=e.plugins.get("ImageCaptionUtils");let r,s=n.getSelectedElement();s?r=i.getCaptionFromImageModelElement(s):(r=i.getCaptionFromModelSelection(n),s=r.parent),o._saveCaption(s,r),t.setSelection(s,"on"),t.remove(r)}}class Ik extends Ii{static get pluginName(){return"ImageCaptionUtils"}static get requires(){return[Jb]}getCaptionFromImageModelElement(t){for(const e of t.getChildren())if(e&&e.is("element","caption"))return e;return null}getCaptionFromModelSelection(t){const e=this.editor.plugins.get("ImageUtils"),n=t.getFirstPosition().findAncestor("caption");return n&&e.isBlockImage(n.parent)?n:null}matchImageCaptionViewElement(t){const e=this.editor.plugins.get("ImageUtils");return"figcaption"==t.name&&e.isBlockImageView(t.parent)?{name:!0}:null}}class Pk extends Ii{static get requires(){return[Jb,Ik]}static get pluginName(){return"ImageCaptionEditing"}constructor(t){super(t),this._savedCaptionsMap=new WeakMap}init(){const t=this.editor,e=t.model.schema;e.isRegistered("caption")?e.extend("caption",{allowIn:"imageBlock"}):e.register("caption",{allowIn:"imageBlock",allowContentOf:"$block",isLimit:!0}),t.commands.add("toggleImageCaption",new Bk(this.editor)),this._setupConversion(),this._setupImageTypeCommandsIntegration(),this._registerCaptionReconversion()}_setupConversion(){const t=this.editor,e=t.editing.view,n=t.plugins.get("ImageUtils"),o=t.plugins.get("ImageCaptionUtils"),i=t.t;t.conversion.for("upcast").elementToElement({view:t=>o.matchImageCaptionViewElement(t),model:"caption"}),t.conversion.for("dataDowncast").elementToElement({model:"caption",view:(t,{writer:e})=>n.isBlockImage(t.parent)?e.createContainerElement("figcaption"):null}),t.conversion.for("editingDowncast").elementToElement({model:"caption",view:(t,{writer:o})=>{if(!n.isBlockImage(t.parent))return null;const r=o.createEditableElement("figcaption");o.setCustomProperty("imageCaption",!0,r),ji({view:e,element:r,text:i("Enter image caption"),keepOnFocus:!0});const s=t.parent.getAttribute("alt");return pb(r,o,{label:s?i("Caption for image: %0",[s]):i("Caption for the image")})}})}_setupImageTypeCommandsIntegration(){const t=this.editor,e=t.plugins.get("ImageUtils"),n=t.plugins.get("ImageCaptionUtils"),o=t.commands.get("imageTypeInline"),i=t.commands.get("imageTypeBlock"),r=t=>{if(!t.return)return;const{oldElement:o,newElement:i}=t.return;if(!o)return;if(e.isBlockImage(o)){const t=n.getCaptionFromImageModelElement(o);if(t)return void this._saveCaption(i,t)}const r=this._getSavedCaption(o);r&&this._saveCaption(i,r)};o&&this.listenTo(o,"execute",r,{priority:"low"}),i&&this.listenTo(i,"execute",r,{priority:"low"})}_getSavedCaption(t){const e=this._savedCaptionsMap.get(t);return e?ml.fromJSON(e):null}_saveCaption(t,e){this._savedCaptionsMap.set(t,e.toJSON())}_registerCaptionReconversion(){const t=this.editor,e=t.model,n=t.plugins.get("ImageUtils"),o=t.plugins.get("ImageCaptionUtils");e.document.on("change:data",(()=>{const i=e.document.differ.getChanges();for(const e of i){if("alt"!==e.attributeKey)continue;const i=e.range.start.nodeAfter;if(n.isBlockImage(i)){const e=o.getCaptionFromImageModelElement(i);if(!e)return;t.editing.reconvertItem(e)}}}))}}class Rk extends Ii{static get requires(){return[Ik]}static get pluginName(){return"ImageCaptionUI"}init(){const t=this.editor,e=t.editing.view,n=t.plugins.get("ImageCaptionUtils"),o=t.t;t.ui.componentFactory.add("toggleImageCaption",(i=>{const r=t.commands.get("toggleImageCaption"),s=new Yu(i);return s.set({icon:Lu.caption,tooltip:!0,isToggleable:!0}),s.bind("isOn","isEnabled").to(r,"value","isEnabled"),s.bind("label").to(r,"value",(t=>o(t?"Toggle caption off":"Toggle caption on"))),this.listenTo(s,"execute",(()=>{t.execute("toggleImageCaption",{focusCaptionOnShow:!0});const o=n.getCaptionFromModelSelection(t.model.document.selection);if(o){const n=t.editing.mapper.toViewElement(o);e.scrollToTheSelection(),e.change((t=>{t.addClass("image__caption_highlighted",n)}))}t.editing.view.focus()})),s}))}}var zk=n(2640),Vk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(zk.Z,Vk);zk.Z.locals;class Fk extends Ri{constructor(t,e){super(t),this._defaultStyles={imageBlock:!1,imageInline:!1},this._styles=new Map(e.map((t=>{if(t.isDefault)for(const e of t.modelElements)this._defaultStyles[e]=t.name;return[t.name,t]})))}refresh(){const t=this.editor.plugins.get("ImageUtils").getClosestSelectedImageElement(this.editor.model.document.selection);this.isEnabled=!!t,this.isEnabled?t.hasAttribute("imageStyle")?this.value=t.getAttribute("imageStyle"):this.value=this._defaultStyles[t.name]:this.value=!1}execute(t={}){const e=this.editor,n=e.model,o=e.plugins.get("ImageUtils");n.change((e=>{const i=t.value;let r=o.getClosestSelectedImageElement(n.document.selection);i&&this.shouldConvertImageType(i,r)&&(this.editor.execute(o.isBlockImage(r)?"imageTypeInline":"imageTypeBlock"),r=o.getClosestSelectedImageElement(n.document.selection)),!i||this._styles.get(i).isDefault?e.removeAttribute("imageStyle",r):e.setAttribute("imageStyle",i,r)}))}shouldConvertImageType(t,e){return!this._styles.get(t).modelElements.includes(e.name)}}const{objectFullWidth:Ok,objectInline:Nk,objectLeft:Mk,objectRight:Lk,objectCenter:Hk,objectBlockLeft:qk,objectBlockRight:Wk}=Lu,jk={get inline(){return{name:"inline",title:"In line",icon:Nk,modelElements:["imageInline"],isDefault:!0}},get alignLeft(){return{name:"alignLeft",title:"Left aligned image",icon:Mk,modelElements:["imageBlock","imageInline"],className:"image-style-align-left"}},get alignBlockLeft(){return{name:"alignBlockLeft",title:"Left aligned image",icon:qk,modelElements:["imageBlock"],className:"image-style-block-align-left"}},get alignCenter(){return{name:"alignCenter",title:"Centered image",icon:Hk,modelElements:["imageBlock"],className:"image-style-align-center"}},get alignRight(){return{name:"alignRight",title:"Right aligned image",icon:Lk,modelElements:["imageBlock","imageInline"],className:"image-style-align-right"}},get alignBlockRight(){return{name:"alignBlockRight",title:"Right aligned image",icon:Wk,modelElements:["imageBlock"],className:"image-style-block-align-right"}},get block(){return{name:"block",title:"Centered image",icon:Hk,modelElements:["imageBlock"],isDefault:!0}},get side(){return{name:"side",title:"Side image",icon:Lk,modelElements:["imageBlock"],className:"image-style-side"}}},Uk={full:Ok,left:qk,right:Wk,center:Hk,inlineLeft:Mk,inlineRight:Lk,inline:Nk},$k=[{name:"imageStyle:wrapText",title:"Wrap text",defaultItem:"imageStyle:alignLeft",items:["imageStyle:alignLeft","imageStyle:alignRight"]},{name:"imageStyle:breakText",title:"Break text",defaultItem:"imageStyle:block",items:["imageStyle:alignBlockLeft","imageStyle:block","imageStyle:alignBlockRight"]}];function Gk(t){k("image-style-configuration-definition-invalid",t)}const Kk={normalizeStyles:function(t){return(t.configuredStyles.options||[]).map((t=>function(t){t="string"==typeof t?jk[t]?{...jk[t]}:{name:t}:function(t,e){const n={...e};for(const o in t)Object.prototype.hasOwnProperty.call(e,o)||(n[o]=t[o]);return n}(jk[t.name],t);"string"==typeof t.icon&&(t.icon=Uk[t.icon]||t.icon);return t}(t))).filter((e=>function(t,{isBlockPluginLoaded:e,isInlinePluginLoaded:n}){const{modelElements:o,name:i}=t;if(!(o&&o.length&&i))return Gk({style:t}),!1;{const i=[e?"imageBlock":null,n?"imageInline":null];if(!o.some((t=>i.includes(t))))return k("image-style-missing-dependency",{style:t,missingPlugins:o.map((t=>"imageBlock"===t?"ImageBlockEditing":"ImageInlineEditing"))}),!1}return!0}(e,t)))},getDefaultStylesConfiguration:function(t,e){return t&&e?{options:["inline","alignLeft","alignRight","alignCenter","alignBlockLeft","alignBlockRight","block","side"]}:t?{options:["block","side"]}:e?{options:["inline","alignLeft","alignRight"]}:{}},getDefaultDropdownDefinitions:function(t){return t.has("ImageBlockEditing")&&t.has("ImageInlineEditing")?[...$k]:[]},warnInvalidStyle:Gk,DEFAULT_OPTIONS:jk,DEFAULT_ICONS:Uk,DEFAULT_DROPDOWN_DEFINITIONS:$k};function Zk(t,e){for(const n of e)if(n.name===t)return n}class Jk extends Ii{static get pluginName(){return"ImageStyleEditing"}static get requires(){return[Jb]}init(){const{normalizeStyles:t,getDefaultStylesConfiguration:e}=Kk,n=this.editor,o=n.plugins.has("ImageBlockEditing"),i=n.plugins.has("ImageInlineEditing");n.config.define("image.styles",e(o,i)),this.normalizedStyles=t({configuredStyles:n.config.get("image.styles"),isBlockPluginLoaded:o,isInlinePluginLoaded:i}),this._setupConversion(o,i),this._setupPostFixer(),n.commands.add("imageStyle",new Fk(n,this.normalizedStyles))}_setupConversion(t,e){const n=this.editor,o=n.model.schema,i=(r=this.normalizedStyles,(t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=Zk(e.attributeNewValue,r),i=Zk(e.attributeOldValue,r),s=n.mapper.toViewElement(e.item),a=n.writer;i&&a.removeClass(i.className,s),o&&a.addClass(o.className,s)});var r;const s=function(t){const e={imageInline:t.filter((t=>!t.isDefault&&t.modelElements.includes("imageInline"))),imageBlock:t.filter((t=>!t.isDefault&&t.modelElements.includes("imageBlock")))};return(t,n,o)=>{if(!n.modelRange)return;const i=n.viewItem,r=vi(n.modelRange.getItems());if(r&&o.schema.checkAttribute(r,"imageStyle"))for(const t of e[r.name])o.consumable.consume(i,{classes:t.className})&&o.writer.setAttribute("imageStyle",t.name,r)}}(this.normalizedStyles);n.editing.downcastDispatcher.on("attribute:imageStyle",i),n.data.downcastDispatcher.on("attribute:imageStyle",i),t&&(o.extend("imageBlock",{allowAttributes:"imageStyle"}),n.data.upcastDispatcher.on("element:figure",s,{priority:"low"})),e&&(o.extend("imageInline",{allowAttributes:"imageStyle"}),n.data.upcastDispatcher.on("element:img",s,{priority:"low"}))}_setupPostFixer(){const t=this.editor,e=t.model.document,n=t.plugins.get(Jb),o=new Map(this.normalizedStyles.map((t=>[t.name,t])));e.registerPostFixer((t=>{let i=!1;for(const r of e.differ.getChanges())if("insert"==r.type||"attribute"==r.type&&"imageStyle"==r.attributeKey){let e="insert"==r.type?r.position.nodeAfter:r.range.start.nodeAfter;if(e&&e.is("element","paragraph")&&e.childCount>0&&(e=e.getChild(0)),!n.isImage(e))continue;const s=e.getAttribute("imageStyle");if(!s)continue;const a=o.get(s);a&&a.modelElements.includes(e.name)||(t.removeAttribute("imageStyle",e),i=!0)}return i}))}}var Yk=n(5083),Qk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Yk.Z,Qk);Yk.Z.locals;class Xk extends Ii{static get requires(){return[Jk]}static get pluginName(){return"ImageStyleUI"}get localizedDefaultStylesTitles(){const t=this.editor.t;return{"Wrap text":t("Wrap text"),"Break text":t("Break text"),"In line":t("In line"),"Full size image":t("Full size image"),"Side image":t("Side image"),"Left aligned image":t("Left aligned image"),"Centered image":t("Centered image"),"Right aligned image":t("Right aligned image")}}init(){const t=this.editor.plugins,e=this.editor.config.get("image.toolbar")||[],n=tw(t.get("ImageStyleEditing").normalizedStyles,this.localizedDefaultStylesTitles);for(const t of n)this._createButton(t);const o=tw([...e.filter(V),...Kk.getDefaultDropdownDefinitions(t)],this.localizedDefaultStylesTitles);for(const t of o)this._createDropdown(t,n)}_createDropdown(t,e){const n=this.editor.ui.componentFactory;n.add(t.name,(o=>{let i;const{defaultItem:r,items:s,title:a}=t,l=s.filter((t=>e.find((({name:e})=>ew(e)===t)))).map((t=>{const e=n.create(t);return t===r&&(i=e),e}));s.length!==l.length&&Kk.warnInvalidStyle({dropdown:t});const c=Mg(o,ug),d=c.buttonView,h=d.arrowView;return Lg(c,l,{enableActiveItemFocusOnDropdownOpen:!0}),d.set({label:nw(a,i.label),class:null,tooltip:!0}),h.unbind("label"),h.set({label:a}),d.bind("icon").toMany(l,"isOn",((...t)=>{const e=t.findIndex(zr);return e<0?i.icon:l[e].icon})),d.bind("label").toMany(l,"isOn",((...t)=>{const e=t.findIndex(zr);return nw(a,e<0?i.label:l[e].label)})),d.bind("isOn").toMany(l,"isOn",((...t)=>t.some(zr))),d.bind("class").toMany(l,"isOn",((...t)=>t.some(zr)?"ck-splitbutton_flatten":null)),d.on("execute",(()=>{l.some((({isOn:t})=>t))?c.isOpen=!c.isOpen:i.fire("execute")})),c.bind("isEnabled").toMany(l,"isEnabled",((...t)=>t.some(zr))),this.listenTo(c,"execute",(()=>{this.editor.editing.view.focus()})),c}))}_createButton(t){const e=t.name;this.editor.ui.componentFactory.add(ew(e),(n=>{const o=this.editor.commands.get("imageStyle"),i=new Yu(n);return i.set({label:t.title,icon:t.icon,tooltip:!0,isToggleable:!0}),i.bind("isEnabled").to(o,"isEnabled"),i.bind("isOn").to(o,"value",(t=>t===e)),i.on("execute",this._executeCommand.bind(this,e)),i}))}_executeCommand(t){this.editor.execute("imageStyle",{value:t}),this.editor.editing.view.focus()}}function tw(t,e){for(const n of t)e[n.title]&&(n.title=e[n.title]);return t}function ew(t){return`imageStyle:${t}`}function nw(t,e){return(t?t+": ":"")+e}function ow(t){const e=t.map((t=>t.replace("+","\\+")));return new RegExp(`^image\\/(${e.join("|")})$`)}function iw(t){return new Promise(((e,n)=>{const o=t.getAttribute("src");fetch(o).then((t=>t.blob())).then((t=>{const n=rw(t,o),i=n.replace("image/",""),r=new File([t],`image.${i}`,{type:n});e(r)})).catch((t=>t&&"TypeError"===t.name?function(t){return function(t){return new Promise(((e,n)=>{const o=Po.document.createElement("img");o.addEventListener("load",(()=>{const t=Po.document.createElement("canvas");t.width=o.width,t.height=o.height;t.getContext("2d").drawImage(o,0,0),t.toBlob((t=>t?e(t):n()))})),o.addEventListener("error",(()=>n())),o.src=t}))}(t).then((e=>{const n=rw(e,t),o=n.replace("image/","");return new File([e],`image.${o}`,{type:n})}))}(o).then(e).catch(n):n(t)))}))}function rw(t,e){return t.type?t.type:e.match(/data:(image\/\w+);base64/)?e.match(/data:(image\/\w+);base64/)[1].toLowerCase():"image/jpeg"}class sw extends Ii{static get pluginName(){return"ImageUploadUI"}init(){const t=this.editor,e=t.t,n=n=>{const o=new ap(n),i=t.commands.get("uploadImage"),r=t.config.get("image.upload.types"),s=ow(r);return o.set({acceptedType:r.map((t=>`image/${t}`)).join(","),allowMultipleFiles:!0}),o.buttonView.set({label:e("Insert image"),icon:Lu.image,tooltip:!0}),o.buttonView.bind("isEnabled").to(i),o.on("done",((e,n)=>{const o=Array.from(n).filter((t=>s.test(t.type)));o.length&&(t.execute("uploadImage",{file:o}),t.editing.view.focus())})),o};t.ui.componentFactory.add("uploadImage",n),t.ui.componentFactory.add("imageUpload",n)}}var aw=n(3689),lw={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(aw.Z,lw);aw.Z.locals;var cw=n(4036),dw={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(cw.Z,dw);cw.Z.locals;var hw=n(3773),uw={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(hw.Z,uw);hw.Z.locals;class gw extends Ii{static get pluginName(){return"ImageUploadProgress"}constructor(t){super(t),this.placeholder="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="}init(){const t=this.editor;t.plugins.has("ImageBlockEditing")&&t.editing.downcastDispatcher.on("attribute:uploadStatus:imageBlock",((...t)=>this.uploadStatusChange(...t))),t.plugins.has("ImageInlineEditing")&&t.editing.downcastDispatcher.on("attribute:uploadStatus:imageInline",((...t)=>this.uploadStatusChange(...t)))}uploadStatusChange(t,e,n){const o=this.editor,i=e.item,r=i.getAttribute("uploadId");if(!n.consumable.consume(e.item,t.name))return;const s=o.plugins.get("ImageUtils"),a=o.plugins.get(rp),l=r?e.attributeNewValue:null,c=this.placeholder,d=o.editing.mapper.toViewElement(i),h=n.writer;if("reading"==l)return mw(d,h),void pw(s,c,d,h);if("uploading"==l){const t=a.loaders.get(r);return mw(d,h),void(t?(fw(d,h),function(t,e,n,o){const i=function(t){const e=t.createUIElement("div",{class:"ck-progress-bar"});return t.setCustomProperty("progressBar",!0,e),e}(e);e.insert(e.createPositionAt(t,"end"),i),n.on("change:uploadedPercent",((t,e,n)=>{o.change((t=>{t.setStyle("width",n+"%",i)}))}))}(d,h,t,o.editing.view),function(t,e,n,o){if(o.data){const i=t.findViewImgElement(e);n.setAttribute("src",o.data,i)}}(s,d,h,t)):pw(s,c,d,h))}"complete"==l&&a.loaders.get(r)&&function(t,e,n){const o=e.createUIElement("div",{class:"ck-image-upload-complete-icon"});e.insert(e.createPositionAt(t,"end"),o),setTimeout((()=>{n.change((t=>t.remove(t.createRangeOn(o))))}),3e3)}(d,h,o.editing.view),function(t,e){kw(t,e,"progressBar")}(d,h),fw(d,h),function(t,e){e.removeClass("ck-appear",t)}(d,h)}}function mw(t,e){t.hasClass("ck-appear")||e.addClass("ck-appear",t)}function pw(t,e,n,o){n.hasClass("ck-image-upload-placeholder")||o.addClass("ck-image-upload-placeholder",n);const i=t.findViewImgElement(n);i.getAttribute("src")!==e&&o.setAttribute("src",e,i),bw(n,"placeholder")||o.insert(o.createPositionAfter(i),function(t){const e=t.createUIElement("div",{class:"ck-upload-placeholder-loader"});return t.setCustomProperty("placeholder",!0,e),e}(o))}function fw(t,e){t.hasClass("ck-image-upload-placeholder")&&e.removeClass("ck-image-upload-placeholder",t),kw(t,e,"placeholder")}function bw(t,e){for(const n of t.getChildren())if(n.getCustomProperty(e))return n}function kw(t,e,n){const o=bw(t,n);o&&e.remove(e.createRangeOn(o))}class ww extends Ri{refresh(){const t=this.editor,e=t.plugins.get("ImageUtils"),n=t.model.document.selection.getSelectedElement();this.isEnabled=e.isImageAllowed()||e.isImage(n)}execute(t){const e=bi(t.file),n=this.editor.model.document.selection,o=this.editor.plugins.get("ImageUtils"),i=Object.fromEntries(n.getAttributes());e.forEach(((t,e)=>{const r=n.getSelectedElement();if(e&&r&&o.isImage(r)){const e=this.editor.model.createPositionAfter(r);this._uploadImage(t,i,e)}else this._uploadImage(t,i)}))}_uploadImage(t,e,n){const o=this.editor,i=o.plugins.get(rp).createLoader(t),r=o.plugins.get("ImageUtils");i&&r.insertImage({...e,uploadId:i.id},n)}}class _w extends Ii{static get requires(){return[rp,hm,lk,Jb]}static get pluginName(){return"ImageUploadEditing"}constructor(t){super(t),t.config.define("image",{upload:{types:["jpeg","png","gif","bmp","webp","tiff"]}}),this._uploadImageElements=new Map}init(){const t=this.editor,e=t.model.document,n=t.conversion,o=t.plugins.get(rp),i=t.plugins.get("ImageUtils"),r=ow(t.config.get("image.upload.types")),s=new ww(t);t.commands.add("uploadImage",s),t.commands.add("imageUpload",s),n.for("upcast").attributeToAttribute({view:{name:"img",key:"uploadId"},model:"uploadId"}),this.listenTo(t.editing.view.document,"clipboardInput",((e,n)=>{if(o=n.dataTransfer,Array.from(o.types).includes("text/html")&&""!==o.getData("text/html"))return;var o;const i=Array.from(n.dataTransfer.files).filter((t=>!!t&&r.test(t.type)));i.length&&(e.stop(),t.model.change((e=>{n.targetRanges&&e.setSelection(n.targetRanges.map((e=>t.editing.mapper.toModelRange(e)))),t.model.enqueueChange((()=>{t.execute("uploadImage",{file:i})}))})))})),this.listenTo(t.plugins.get("ClipboardPipeline"),"inputTransformation",((e,n)=>{const r=Array.from(t.editing.view.createRangeIn(n.content)).filter((t=>function(t,e){return!(!t.isInlineImageView(e)||!e.getAttribute("src"))&&(e.getAttribute("src").match(/^data:image\/\w+;base64,/g)||e.getAttribute("src").match(/^blob:/g))}(i,t.item)&&!t.item.getAttribute("uploadProcessed"))).map((t=>({promise:iw(t.item),imageElement:t.item})));if(!r.length)return;const s=new rh(t.editing.view.document);for(const t of r){s.setAttribute("uploadProcessed",!0,t.imageElement);const e=o.createLoader(t.promise);e&&(s.setAttribute("src","",t.imageElement),s.setAttribute("uploadId",e.id,t.imageElement))}})),t.editing.view.document.on("dragover",((t,e)=>{e.preventDefault()})),e.on("change",(()=>{const n=e.differ.getChanges({includeChangesInGraveyard:!0}).reverse(),i=new Set;for(const e of n)if("insert"==e.type&&"$text"!=e.name){const n=e.position.nodeAfter,r="$graveyard"==e.position.root.rootName;for(const e of Aw(t,n)){const t=e.getAttribute("uploadId");if(!t)continue;const n=o.loaders.get(t);n&&(r?i.has(t)||n.abort():(i.add(t),this._uploadImageElements.set(t,e),"idle"==n.status&&this._readAndUpload(n)))}}})),this.on("uploadComplete",((t,{imageElement:e,data:n})=>{const o=n.urls?n.urls:n;this.editor.model.change((t=>{t.setAttribute("src",o.default,e),this._parseAndSetSrcsetAttributeOnImage(o,e,t)}))}),{priority:"low"})}afterInit(){const t=this.editor.model.schema;this.editor.plugins.has("ImageBlockEditing")&&t.extend("imageBlock",{allowAttributes:["uploadId","uploadStatus"]}),this.editor.plugins.has("ImageInlineEditing")&&t.extend("imageInline",{allowAttributes:["uploadId","uploadStatus"]})}_readAndUpload(t){const e=this.editor,n=e.model,o=e.locale.t,r=e.plugins.get(rp),s=e.plugins.get(hm),a=e.plugins.get("ImageUtils"),l=this._uploadImageElements;return n.enqueueChange({isUndoable:!1},(e=>{e.setAttribute("uploadStatus","reading",l.get(t.id))})),t.read().then((()=>{const o=t.upload(),r=l.get(t.id);if(i.isSafari){const t=e.editing.mapper.toViewElement(r),n=a.findViewImgElement(t);e.editing.view.once("render",(()=>{if(!n.parent)return;const t=e.editing.view.domConverter.mapViewToDom(n.parent);if(!t)return;const o=t.style.display;t.style.display="none",t._ckHack=t.offsetHeight,t.style.display=o}))}return n.enqueueChange({isUndoable:!1},(t=>{t.setAttribute("uploadStatus","uploading",r)})),o})).then((e=>{n.enqueueChange({isUndoable:!1},(n=>{const o=l.get(t.id);n.setAttribute("uploadStatus","complete",o),this.fire("uploadComplete",{data:e,imageElement:o})})),c()})).catch((e=>{if("error"!==t.status&&"aborted"!==t.status)throw e;"error"==t.status&&e&&s.showWarning(e,{title:o("Upload failed"),namespace:"upload"}),n.enqueueChange({isUndoable:!1},(e=>{e.remove(l.get(t.id))})),c()}));function c(){n.enqueueChange({isUndoable:!1},(e=>{const n=l.get(t.id);e.removeAttribute("uploadId",n),e.removeAttribute("uploadStatus",n),l.delete(t.id)})),r.destroyLoader(t)}}_parseAndSetSrcsetAttributeOnImage(t,e,n){let o=0;const i=Object.keys(t).filter((t=>{const e=parseInt(t,10);if(!isNaN(e))return o=Math.max(o,e),!0})).map((e=>`${t[e]} ${e}w`)).join(", ");""!=i&&n.setAttribute("srcset",{data:i,width:o},e)}}function Aw(t,e){const n=t.plugins.get("ImageUtils");return Array.from(t.model.createRangeOn(e)).filter((t=>n.isImage(t.item))).map((t=>t.item))}class Cw extends Ri{refresh(){const t=this.editor,e=t.plugins.get("ImageUtils").getClosestSelectedImageElement(t.model.document.selection);this.isEnabled=!!e,e&&e.hasAttribute("width")?this.value={width:e.getAttribute("width"),height:null}:this.value=null}execute(t){const e=this.editor,n=e.model,o=e.plugins.get("ImageUtils").getClosestSelectedImageElement(n.document.selection);this.value={width:t.width,height:null},o&&n.change((e=>{e.setAttribute("width",t.width,o)}))}}class vw extends Ii{static get requires(){return[Jb]}static get pluginName(){return"ImageResizeEditing"}constructor(t){super(t),t.config.define("image",{resizeUnit:"%",resizeOptions:[{name:"resizeImage:original",value:null,icon:"original"},{name:"resizeImage:25",value:"25",icon:"small"},{name:"resizeImage:50",value:"50",icon:"medium"},{name:"resizeImage:75",value:"75",icon:"large"}]})}init(){const t=this.editor,e=new Cw(t);this._registerSchema(),this._registerConverters("imageBlock"),this._registerConverters("imageInline"),t.commands.add("resizeImage",e),t.commands.add("imageResize",e)}_registerSchema(){this.editor.plugins.has("ImageBlockEditing")&&this.editor.model.schema.extend("imageBlock",{allowAttributes:"width"}),this.editor.plugins.has("ImageInlineEditing")&&this.editor.model.schema.extend("imageInline",{allowAttributes:"width"})}_registerConverters(t){const e=this.editor;e.conversion.for("downcast").add((e=>e.on(`attribute:width:${t}`,((t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewElement(e.item);null!==e.attributeNewValue?(o.setStyle("width",e.attributeNewValue,i),o.addClass("image_resized",i)):(o.removeStyle("width",i),o.removeClass("image_resized",i))})))),e.conversion.for("upcast").attributeToAttribute({view:{name:"imageBlock"===t?"figure":"img",styles:{width:/.+/}},model:{key:"width",value:t=>t.getStyle("width")}})}}const yw={small:Lu.objectSizeSmall,medium:Lu.objectSizeMedium,large:Lu.objectSizeLarge,original:Lu.objectSizeFull};class xw extends Ii{static get requires(){return[vw]}static get pluginName(){return"ImageResizeButtons"}constructor(t){super(t),this._resizeUnit=t.config.get("image.resizeUnit")}init(){const t=this.editor,e=t.config.get("image.resizeOptions"),n=t.commands.get("resizeImage");this.bind("isEnabled").to(n);for(const t of e)this._registerImageResizeButton(t);this._registerImageResizeDropdown(e)}_registerImageResizeButton(t){const e=this.editor,{name:n,value:o,icon:i}=t,r=o?o+this._resizeUnit:null;e.ui.componentFactory.add(n,(n=>{const o=new Yu(n),s=e.commands.get("resizeImage"),a=this._getOptionLabelValue(t,!0);if(!yw[i])throw new b("imageresizebuttons-missing-icon",e,t);return o.set({label:a,icon:yw[i],tooltip:a,isToggleable:!0}),o.bind("isEnabled").to(this),o.bind("isOn").to(s,"value",Ew(r)),this.listenTo(o,"execute",(()=>{e.execute("resizeImage",{width:r})})),o}))}_registerImageResizeDropdown(t){const e=this.editor,n=e.t,o=t.find((t=>!t.value)),i=i=>{const r=e.commands.get("resizeImage"),s=Mg(i,cg),a=s.buttonView;return a.set({tooltip:n("Resize image"),commandValue:o.value,icon:yw.medium,isToggleable:!0,label:this._getOptionLabelValue(o),withText:!0,class:"ck-resize-image-button"}),a.bind("label").to(r,"value",(t=>t&&t.width?t.width:this._getOptionLabelValue(o))),s.bind("isOn").to(r),s.bind("isEnabled").to(this),Hg(s,this._getResizeDropdownListItemDefinitions(t,r)),s.listView.ariaLabel=n("Image resize list"),this.listenTo(s,"execute",(t=>{e.execute(t.source.commandName,{width:t.source.commandValue}),e.editing.view.focus()})),s};e.ui.componentFactory.add("resizeImage",i),e.ui.componentFactory.add("imageResize",i)}_getOptionLabelValue(t,e){const n=this.editor.t;return t.label?t.label:e?t.value?n("Resize image to %0",t.value+this._resizeUnit):n("Resize image to the original size"):t.value?t.value+this._resizeUnit:n("Original")}_getResizeDropdownListItemDefinitions(t,e){const n=new Ci;return t.map((t=>{const o=t.value?t.value+this._resizeUnit:null,i={type:"button",model:new um({commandName:"resizeImage",commandValue:o,label:this._getOptionLabelValue(t),withText:!0,icon:null})};i.model.bind("isOn").to(e,"value",Ew(o)),n.add(i)})),n}}function Ew(t){return e=>null===t&&e===t||e&&e.width===t}const Tw=/(image|image-inline)/,Dw="image_resized";class Sw extends Ii{static get requires(){return[Ub]}static get pluginName(){return"ImageResizeHandles"}init(){const t=this.editor.commands.get("resizeImage");this.bind("isEnabled").to(t),this._setupResizerCreator()}_setupResizerCreator(){const t=this.editor,e=t.editing.view;e.addObserver(_k),this.listenTo(e.document,"imageLoaded",((n,o)=>{if(!o.target.matches("figure.image.ck-widget > img,figure.image.ck-widget > picture > img,figure.image.ck-widget > a > img,figure.image.ck-widget > a > picture > img,span.image-inline.ck-widget > img,span.image-inline.ck-widget > picture > img"))return;const i=t.editing.view.domConverter,r=i.domToView(o.target).findAncestor({classes:Tw});let s=this.editor.plugins.get(Ub).getResizerByViewElement(r);if(s)return void s.redraw();const a=t.editing.mapper,l=a.toModelElement(r);s=t.plugins.get(Ub).attachTo({unit:t.config.get("image.resizeUnit"),modelElement:l,viewElement:r,editor:t,getHandleHost:t=>t.querySelector("img"),getResizeHost:()=>i.mapViewToDom(a.toViewElement(l.parent)),isCentered(){const t=l.getAttribute("imageStyle");return!t||"block"==t||"alignCenter"==t},onCommit(n){e.change((t=>{t.removeClass(Dw,r)})),t.execute("resizeImage",{width:n})}}),s.on("updateSize",(()=>{r.hasClass(Dw)||e.change((t=>{t.addClass(Dw,r)}))})),s.bind("isEnabled").to(this)}))}}var Bw=n(6270),Iw={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Bw.Z,Iw);Bw.Z.locals;class Pw{constructor(){this._definitions=new Set}get length(){return this._definitions.size}add(t){Array.isArray(t)?t.forEach((t=>this._definitions.add(t))):this._definitions.add(t)}getDispatcher(){return t=>{t.on("attribute:linkHref",((t,e,n)=>{if(!n.consumable.test(e.item,"attribute:linkHref"))return;if(!e.item.is("selection")&&!n.schema.isInline(e.item))return;const o=n.writer,i=o.document.selection;for(const t of this._definitions){const r=o.createAttributeElement("a",t.attributes,{priority:5});t.classes&&o.addClass(t.classes,r);for(const e in t.styles)o.setStyle(e,t.styles[e],r);o.setCustomProperty("link",!0,r),t.callback(e.attributeNewValue)?e.item.is("selection")?o.wrap(i.getFirstRange(),r):o.wrap(n.mapper.toViewRange(e.range),r):o.unwrap(n.mapper.toViewRange(e.range),r)}}),{priority:"high"})}}getDispatcherForLinkedImage(){return t=>{t.on("attribute:linkHref:imageBlock",((t,e,{writer:n,mapper:o})=>{const i=o.toViewElement(e.item),r=Array.from(i.getChildren()).find((t=>"a"===t.name));for(const t of this._definitions){const o=Ei(t.attributes);if(t.callback(e.attributeNewValue)){for(const[t,e]of o)"class"===t?n.addClass(e,r):n.setAttribute(t,e,r);t.classes&&n.addClass(t.classes,r);for(const e in t.styles)n.setStyle(e,t.styles[e],r)}else{for(const[t,e]of o)"class"===t?n.removeClass(e,r):n.removeAttribute(t,r);t.classes&&n.removeClass(t.classes,r);for(const e in t.styles)n.removeStyle(e,r)}}}))}}}const Rw=function(t,e,n){var o=t.length;return n=void 0===n?o:n,!e&&n>=o?t:Cr(t,e,n)};var zw=RegExp("[\\u200d\\ud800-\\udfff\\u0300-\\u036f\\ufe20-\\ufe2f\\u20d0-\\u20ff\\ufe0e\\ufe0f]");const Vw=function(t){return zw.test(t)};const Fw=function(t){return t.split("")};var Ow="[\\ud800-\\udfff]",Nw="[\\u0300-\\u036f\\ufe20-\\ufe2f\\u20d0-\\u20ff]",Mw="\\ud83c[\\udffb-\\udfff]",Lw="[^\\ud800-\\udfff]",Hw="(?:\\ud83c[\\udde6-\\uddff]){2}",qw="[\\ud800-\\udbff][\\udc00-\\udfff]",Ww="(?:"+Nw+"|"+Mw+")"+"?",jw="[\\ufe0e\\ufe0f]?",Uw=jw+Ww+("(?:\\u200d(?:"+[Lw,Hw,qw].join("|")+")"+jw+Ww+")*"),$w="(?:"+[Lw+Nw+"?",Nw,Hw,qw,Ow].join("|")+")",Gw=RegExp(Mw+"(?="+Mw+")|"+$w+Uw,"g");const Kw=function(t){return t.match(Gw)||[]};const Zw=function(t){return Vw(t)?Kw(t):Fw(t)};const Jw=function(t){return function(e){e=br(e);var n=Vw(e)?Zw(e):void 0,o=n?n[0]:e.charAt(0),i=n?Rw(n,1).join(""):e.slice(1);return o[t]()+i}}("toUpperCase"),Yw=/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205f\u3000]/g,Qw=/^(?:(?:https?|ftps?|mailto):|[^a-z]|[a-z+.-]+(?:[^a-z+.:-]|$))/i,Xw=/^[\S]+@((?![-_])(?:[-\w\u00a1-\uffff]{0,63}[^-_]\.))+(?:[a-z\u00a1-\uffff]{2,})$/i,t_=/^((\w+:(\/{2,})?)|(\W))/i,e_="Ctrl+K";function n_(t,{writer:e}){const n=e.createAttributeElement("a",{href:t},{priority:5});return e.setCustomProperty("link",!0,n),n}function o_(t){return function(t){return t.replace(Yw,"").match(Qw)}(t=String(t))?t:"#"}function i_(t,e){return!!t&&e.checkAttribute(t.name,"linkHref")}function r_(t,e){const n=(o=t,Xw.test(o)?"mailto:":e);var o;const i=!!n&&!s_(t);return t&&i?n+t:t}function s_(t){return t_.test(t)}function a_(t){window.open(t,"_blank","noopener")}class l_ extends Ri{constructor(t){super(t),this.manualDecorators=new Ci,this.automaticDecorators=new Pw}restoreManualDecoratorStates(){for(const t of this.manualDecorators)t.value=this._getDecoratorStateFromModel(t.id)}refresh(){const t=this.editor.model,e=t.document.selection,n=e.getSelectedElement()||vi(e.getSelectedBlocks());i_(n,t.schema)?(this.value=n.getAttribute("linkHref"),this.isEnabled=t.schema.checkAttribute(n,"linkHref")):(this.value=e.getAttribute("linkHref"),this.isEnabled=t.schema.checkAttributeInSelection(e,"linkHref"));for(const t of this.manualDecorators)t.value=this._getDecoratorStateFromModel(t.id)}execute(t,e={}){const n=this.editor.model,o=n.document.selection,i=[],r=[];for(const t in e)e[t]?i.push(t):r.push(t);n.change((e=>{if(o.isCollapsed){const s=o.getFirstPosition();if(o.hasAttribute("linkHref")){const a=Hp(s,"linkHref",o.getAttribute("linkHref"),n);e.setAttribute("linkHref",t,a),i.forEach((t=>{e.setAttribute(t,!0,a)})),r.forEach((t=>{e.removeAttribute(t,a)})),e.setSelection(e.createPositionAfter(a.end.nodeBefore))}else if(""!==t){const r=Ei(o.getAttributes());r.set("linkHref",t),i.forEach((t=>{r.set(t,!0)}));const{end:a}=n.insertContent(e.createText(t,r),s);e.setSelection(a)}["linkHref",...i,...r].forEach((t=>{e.removeSelectionAttribute(t)}))}else{const s=n.schema.getValidRanges(o.getRanges(),"linkHref"),a=[];for(const t of o.getSelectedBlocks())n.schema.checkAttribute(t,"linkHref")&&a.push(e.createRangeOn(t));const l=a.slice();for(const t of s)this._isRangeToUpdate(t,a)&&l.push(t);for(const n of l)e.setAttribute("linkHref",t,n),i.forEach((t=>{e.setAttribute(t,!0,n)})),r.forEach((t=>{e.removeAttribute(t,n)}))}}))}_getDecoratorStateFromModel(t){const e=this.editor.model,n=e.document.selection,o=n.getSelectedElement();return i_(o,e.schema)?o.getAttribute(t):n.getAttribute(t)}_isRangeToUpdate(t,e){for(const n of e)if(n.containsRange(t))return!1;return!0}}class c_ extends Ri{refresh(){const t=this.editor.model,e=t.document.selection,n=e.getSelectedElement();i_(n,t.schema)?this.isEnabled=t.schema.checkAttribute(n,"linkHref"):this.isEnabled=t.schema.checkAttributeInSelection(e,"linkHref")}execute(){const t=this.editor,e=this.editor.model,n=e.document.selection,o=t.commands.get("link");e.change((t=>{const i=n.isCollapsed?[Hp(n.getFirstPosition(),"linkHref",n.getAttribute("linkHref"),e)]:e.schema.getValidRanges(n.getRanges(),"linkHref");for(const e of i)if(t.removeAttribute("linkHref",e),o)for(const n of o.manualDecorators)t.removeAttribute(n.id,e)}))}}class d_{constructor({id:t,label:e,attributes:n,classes:o,styles:i,defaultValue:r}){this.id=t,this.set("value"),this.defaultValue=r,this.label=e,this.attributes=n,this.classes=o,this.styles=i}_createPattern(){return{attributes:this.attributes,classes:this.classes,styles:this.styles}}}d(d_,q);var h_=n(1134),u_={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(h_.Z,u_);h_.Z.locals;const g_="automatic",m_=/^(https?:)?\/\//;class p_ extends Ii{static get pluginName(){return"LinkEditing"}static get requires(){return[Sp,bp,lk]}constructor(t){super(t),t.config.define("link",{addTargetToExternalLinks:!1})}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:"linkHref"}),t.conversion.for("dataDowncast").attributeToElement({model:"linkHref",view:n_}),t.conversion.for("editingDowncast").attributeToElement({model:"linkHref",view:(t,e)=>n_(o_(t),e)}),t.conversion.for("upcast").elementToAttribute({view:{name:"a",attributes:{href:!0}},model:{key:"linkHref",value:t=>t.getAttribute("href")}}),t.commands.add("link",new l_(t)),t.commands.add("unlink",new c_(t));const e=function(t,e){const n={"Open in a new tab":t("Open in a new tab"),Downloadable:t("Downloadable")};return e.forEach((t=>(t.label&&n[t.label]&&(t.label=n[t.label]),t))),e}(t.t,function(t){const e=[];if(t)for(const[n,o]of Object.entries(t)){const t=Object.assign({},o,{id:`link${Jw(n)}`});e.push(t)}return e}(t.config.get("link.decorators")));this._enableAutomaticDecorators(e.filter((t=>t.mode===g_))),this._enableManualDecorators(e.filter((t=>"manual"===t.mode)));t.plugins.get(Sp).registerAttribute("linkHref"),Wp(t,"linkHref","a","ck-link_selected"),this._enableInsertContentSelectionAttributesFixer(),this._enableClickingAfterLink(),this._enableTypingOverLink(),this._handleDeleteContentAfterLink()}_enableAutomaticDecorators(t){const e=this.editor,n=e.commands.get("link").automaticDecorators;e.config.get("link.addTargetToExternalLinks")&&n.add({id:"linkIsExternal",mode:g_,callback:t=>m_.test(t),attributes:{target:"_blank",rel:"noopener noreferrer"}}),n.add(t),n.length&&e.conversion.for("downcast").add(n.getDispatcher())}_enableManualDecorators(t){if(!t.length)return;const e=this.editor,n=e.commands.get("link").manualDecorators;t.forEach((t=>{e.model.schema.extend("$text",{allowAttributes:t.id}),t=new d_(t),n.add(t),e.conversion.for("downcast").attributeToElement({model:t.id,view:(e,{writer:n,schema:o},{item:i})=>{if((i.is("selection")||o.isInline(i))&&e){const e=n.createAttributeElement("a",t.attributes,{priority:5});t.classes&&n.addClass(t.classes,e);for(const o in t.styles)n.setStyle(o,t.styles[o],e);return n.setCustomProperty("link",!0,e),e}}}),e.conversion.for("upcast").elementToAttribute({view:{name:"a",...t._createPattern()},model:{key:t.id}})}))}_enableLinkOpen(){const t=this.editor,e=t.editing.view.document;this.listenTo(e,"click",((t,e)=>{if(!(i.isMac?e.domEvent.metaKey:e.domEvent.ctrlKey))return;let n=e.domTarget;if("a"!=n.tagName.toLowerCase()&&(n=n.closest("a")),!n)return;const o=n.getAttribute("href");o&&(t.stop(),e.preventDefault(),a_(o))}),{context:"$capture"}),this.listenTo(e,"keydown",((e,n)=>{const o=t.commands.get("link").value;o&&n.keyCode===hi.enter&&n.altKey&&(e.stop(),a_(o))}))}_enableInsertContentSelectionAttributesFixer(){const t=this.editor.model,e=t.document.selection;this.listenTo(t,"insertContent",(()=>{const n=e.anchor.nodeBefore,o=e.anchor.nodeAfter;e.hasAttribute("linkHref")&&n&&n.hasAttribute("linkHref")&&(o&&o.hasAttribute("linkHref")||t.change((e=>{f_(e,k_(t.schema))})))}),{priority:"low"})}_enableClickingAfterLink(){const t=this.editor,e=t.model;t.editing.view.addObserver(ih);let n=!1;this.listenTo(t.editing.view.document,"mousedown",(()=>{n=!0})),this.listenTo(t.editing.view.document,"selectionChange",(()=>{if(!n)return;n=!1;const t=e.document.selection;if(!t.isCollapsed)return;if(!t.hasAttribute("linkHref"))return;const o=t.getFirstPosition(),i=Hp(o,"linkHref",t.getAttribute("linkHref"),e);(o.isTouching(i.start)||o.isTouching(i.end))&&e.change((t=>{f_(t,k_(e.schema))}))}))}_enableTypingOverLink(){const t=this.editor,e=t.editing.view;let n,o;this.listenTo(e.document,"delete",(()=>{o=!0}),{priority:"high"}),this.listenTo(t.model,"deleteContent",(()=>{const e=t.model.document.selection;e.isCollapsed||(o?o=!1:b_(t)&&function(t){const e=t.document.selection,n=e.getFirstPosition(),o=e.getLastPosition(),i=n.nodeAfter;if(!i)return!1;if(!i.is("$text"))return!1;if(!i.hasAttribute("linkHref"))return!1;const r=o.textNode||o.nodeBefore;if(i===r)return!0;return Hp(n,"linkHref",i.getAttribute("linkHref"),t).containsRange(t.createRange(n,o),!0)}(t.model)&&(n=e.getAttributes()))}),{priority:"high"}),this.listenTo(t.model,"insertContent",((e,[i])=>{o=!1,b_(t)&&n&&(t.model.change((t=>{for(const[e,o]of n)t.setAttribute(e,o,i)})),n=null)}),{priority:"high"})}_handleDeleteContentAfterLink(){const t=this.editor,e=t.model,n=e.document.selection,o=t.editing.view;let i=!1,r=!1;this.listenTo(o.document,"delete",((t,e)=>{r="backward"===e.direction}),{priority:"high"}),this.listenTo(e,"deleteContent",(()=>{i=!1;const t=n.getFirstPosition(),o=n.getAttribute("linkHref");if(!o)return;const r=Hp(t,"linkHref",o,e);i=r.containsPosition(t)||r.end.isEqual(t)}),{priority:"high"}),this.listenTo(e,"deleteContent",(()=>{r&&(r=!1,i||t.model.enqueueChange((t=>{f_(t,k_(e.schema))})))}),{priority:"low"})}}function f_(t,e){t.removeSelectionAttribute("linkHref");for(const n of e)t.removeSelectionAttribute(n)}function b_(t){return t.model.change((t=>t.batch)).isTyping}function k_(t){return t.getDefinition("$text").allowAttributes.filter((t=>t.startsWith("link")))}var w_=n(8117),__={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(w_.Z,__);w_.Z.locals;class A_ extends _u{constructor(t,e){super(t);const n=t.t;this.focusTracker=new yi,this.keystrokes=new xi,this.urlInputView=this._createUrlInput(),this.saveButtonView=this._createButton(n("Save"),Lu.check,"ck-button-save"),this.saveButtonView.type="submit",this.cancelButtonView=this._createButton(n("Cancel"),Lu.cancel,"ck-button-cancel","cancel"),this._manualDecoratorSwitches=this._createManualDecoratorSwitches(e),this.children=this._createFormChildren(e.manualDecorators),this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}});const o=["ck","ck-link-form","ck-responsive-form"];e.manualDecorators.length&&o.push("ck-link-form_layout-vertical","ck-vertical-form"),this.setTemplate({tag:"form",attributes:{class:o,tabindex:"-1"},children:this.children}),qu(this)}getDecoratorSwitchesState(){return Array.from(this._manualDecoratorSwitches).reduce(((t,e)=>(t[e.name]=e.isOn,t)),{})}render(){super.render(),Wu({view:this});[this.urlInputView,...this._manualDecoratorSwitches,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createUrlInput(){const t=this.locale.t,e=new am(this.locale,lm);return e.label=t("Link URL"),e}_createButton(t,e,n,o){const i=new Yu(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}_createManualDecoratorSwitches(t){const e=this.createCollection();for(const n of t.manualDecorators){const o=new tg(this.locale);o.set({name:n.id,label:n.label,withText:!0}),o.bind("isOn").toMany([n,t],"value",((t,e)=>void 0===e&&void 0===t?n.defaultValue:t)),o.on("execute",(()=>{n.set("value",!o.isOn)})),e.add(o)}return e}_createFormChildren(t){const e=this.createCollection();if(e.add(this.urlInputView),t.length){const t=new _u;t.setTemplate({tag:"ul",children:this._manualDecoratorSwitches.map((t=>({tag:"li",children:[t],attributes:{class:["ck","ck-list__item"]}}))),attributes:{class:["ck","ck-reset","ck-list"]}}),e.add(t)}return e.add(this.saveButtonView),e.add(this.cancelButtonView),e}}var C_=n(9376),v_={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(C_.Z,v_);C_.Z.locals;class y_ extends _u{constructor(t){super(t);const e=t.t;this.focusTracker=new yi,this.keystrokes=new xi,this.previewButtonView=this._createPreviewButton(),this.unlinkButtonView=this._createButton(e("Unlink"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184zm4.919 10.562-1.414 1.414a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.061-1.06l1.414 1.414 1.414-1.415a.75.75 0 0 1 1.061 1.061l-1.414 1.414 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414z"/></svg>',"unlink"),this.editButtonView=this._createButton(e("Edit link"),Lu.pencil,"edit"),this.set("href"),this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-link-actions","ck-responsive-form"],tabindex:"-1"},children:[this.previewButtonView,this.editButtonView,this.unlinkButtonView]})}render(){super.render();[this.previewButtonView,this.editButtonView,this.unlinkButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createButton(t,e,n){const o=new Yu(this.locale);return o.set({label:t,icon:e,tooltip:!0}),o.delegate("execute").to(this,n),o}_createPreviewButton(){const t=new Yu(this.locale),e=this.bindTemplate,n=this.t;return t.set({withText:!0,tooltip:n("Open link in new tab")}),t.extendTemplate({attributes:{class:["ck","ck-link-actions__preview"],href:e.to("href",(t=>t&&o_(t))),target:"_blank",rel:"noopener noreferrer"}}),t.bind("label").to(this,"href",(t=>t||n("This link has no URL"))),t.bind("isEnabled").to(this,"href",(t=>!!t)),t.template.tag="a",t.template.eventListeners={},t}}const x_="link-ui";class E_ extends Ii{static get requires(){return[wm]}static get pluginName(){return"LinkUI"}init(){const t=this.editor;t.editing.view.addObserver(oh),this.actionsView=this._createActionsView(),this.formView=this._createFormView(),this._balloon=t.plugins.get(wm),this._createToolbarLinkButton(),this._enableUserBalloonInteractions(),t.conversion.for("editingDowncast").markerToHighlight({model:x_,view:{classes:["ck-fake-link-selection"]}}),t.conversion.for("editingDowncast").markerToElement({model:x_,view:{name:"span",classes:["ck-fake-link-selection","ck-fake-link-selection_collapsed"]}})}destroy(){super.destroy(),this.formView.destroy()}_createActionsView(){const t=this.editor,e=new y_(t.locale),n=t.commands.get("link"),o=t.commands.get("unlink");return e.bind("href").to(n,"value"),e.editButtonView.bind("isEnabled").to(n),e.unlinkButtonView.bind("isEnabled").to(o),this.listenTo(e,"edit",(()=>{this._addFormView()})),this.listenTo(e,"unlink",(()=>{t.execute("unlink"),this._hideUI()})),e.keystrokes.set("Esc",((t,e)=>{this._hideUI(),e()})),e.keystrokes.set(e_,((t,e)=>{this._addFormView(),e()})),e}_createFormView(){const t=this.editor,e=t.commands.get("link"),n=t.config.get("link.defaultProtocol"),o=new A_(t.locale,e);return o.urlInputView.fieldView.bind("value").to(e,"value"),o.urlInputView.bind("isReadOnly").to(e,"isEnabled",(t=>!t)),o.saveButtonView.bind("isEnabled").to(e),this.listenTo(o,"submit",(()=>{const{value:e}=o.urlInputView.fieldView.element,i=r_(e,n);t.execute("link",i,o.getDecoratorSwitchesState()),this._closeFormView()})),this.listenTo(o,"cancel",(()=>{this._closeFormView()})),o.keystrokes.set("Esc",((t,e)=>{this._closeFormView(),e()})),o}_createToolbarLinkButton(){const t=this.editor,e=t.commands.get("link"),n=t.t;t.keystrokes.set(e_,((t,n)=>{n(),e.isEnabled&&this._showUI(!0)})),t.ui.componentFactory.add("link",(t=>{const o=new Yu(t);return o.isEnabled=!0,o.label=n("Link"),o.icon='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184z"/></svg>',o.keystroke=e_,o.tooltip=!0,o.isToggleable=!0,o.bind("isEnabled").to(e,"isEnabled"),o.bind("isOn").to(e,"value",(t=>!!t)),this.listenTo(o,"execute",(()=>this._showUI(!0))),o}))}_enableUserBalloonInteractions(){const t=this.editor.editing.view.document;this.listenTo(t,"click",(()=>{this._getSelectedLinkElement()&&this._showUI()})),this.editor.keystrokes.set("Tab",((t,e)=>{this._areActionsVisible&&!this.actionsView.focusTracker.isFocused&&(this.actionsView.focus(),e())}),{priority:"high"}),this.editor.keystrokes.set("Esc",((t,e)=>{this._isUIVisible&&(this._hideUI(),e())})),Hu({emitter:this.formView,activator:()=>this._isUIInPanel,contextElements:[this._balloon.view.element],callback:()=>this._hideUI()})}_addActionsView(){this._areActionsInPanel||this._balloon.add({view:this.actionsView,position:this._getBalloonPositionData()})}_addFormView(){if(this._isFormInPanel)return;const t=this.editor.commands.get("link");this.formView.disableCssTransitions(),this._balloon.add({view:this.formView,position:this._getBalloonPositionData()}),this._balloon.visibleView===this.formView&&this.formView.urlInputView.fieldView.select(),this.formView.enableCssTransitions(),this.formView.urlInputView.fieldView.element.value=t.value||""}_closeFormView(){const t=this.editor.commands.get("link");t.restoreManualDecoratorStates(),void 0!==t.value?this._removeFormView():this._hideUI()}_removeFormView(){this._isFormInPanel&&(this.formView.saveButtonView.focus(),this._balloon.remove(this.formView),this.editor.editing.view.focus(),this._hideFakeVisualSelection())}_showUI(t=!1){this._getSelectedLinkElement()?(this._areActionsVisible?this._addFormView():this._addActionsView(),t&&this._balloon.showStack("main")):(this._showFakeVisualSelection(),this._addActionsView(),t&&this._balloon.showStack("main"),this._addFormView()),this._startUpdatingUI()}_hideUI(){if(!this._isUIInPanel)return;const t=this.editor;this.stopListening(t.ui,"update"),this.stopListening(this._balloon,"change:visibleView"),t.editing.view.focus(),this._removeFormView(),this._balloon.remove(this.actionsView),this._hideFakeVisualSelection()}_startUpdatingUI(){const t=this.editor,e=t.editing.view.document;let n=this._getSelectedLinkElement(),o=r();const i=()=>{const t=this._getSelectedLinkElement(),e=r();n&&!t||!n&&e!==o?this._hideUI():this._isUIVisible&&this._balloon.updatePosition(this._getBalloonPositionData()),n=t,o=e};function r(){return e.selection.focus.getAncestors().reverse().find((t=>t.is("element")))}this.listenTo(t.ui,"update",i),this.listenTo(this._balloon,"change:visibleView",i)}get _isFormInPanel(){return this._balloon.hasView(this.formView)}get _areActionsInPanel(){return this._balloon.hasView(this.actionsView)}get _areActionsVisible(){return this._balloon.visibleView===this.actionsView}get _isUIInPanel(){return this._isFormInPanel||this._areActionsInPanel}get _isUIVisible(){return this._balloon.visibleView==this.formView||this._areActionsVisible}_getBalloonPositionData(){const t=this.editor.editing.view,e=this.editor.model,n=t.document;let o=null;if(e.markers.has(x_)){const e=Array.from(this.editor.editing.mapper.markerNameToElements(x_)),n=t.createRange(t.createPositionBefore(e[0]),t.createPositionAfter(e[e.length-1]));o=t.domConverter.viewRangeToDom(n)}else o=()=>{const e=this._getSelectedLinkElement();return e?t.domConverter.mapViewToDom(e):t.domConverter.viewRangeToDom(n.selection.getFirstRange())};return{target:o}}_getSelectedLinkElement(){const t=this.editor.editing.view,e=t.document.selection,n=e.getSelectedElement();if(e.isCollapsed||n&&db(n))return T_(e.getFirstPosition());{const n=e.getFirstRange().getTrimmed(),o=T_(n.start),i=T_(n.end);return o&&o==i&&t.createRangeIn(o).getTrimmed().isEqual(n)?o:null}}_showFakeVisualSelection(){const t=this.editor.model;t.change((e=>{const n=t.document.selection.getFirstRange();if(t.markers.has(x_))e.updateMarker(x_,{range:n});else if(n.start.isAtEnd){const o=n.start.getLastMatchingPosition((({item:e})=>!t.schema.isContent(e)),{boundaries:n});e.addMarker(x_,{usingOperation:!1,affectsData:!1,range:e.createRange(o,n.end)})}else e.addMarker(x_,{usingOperation:!1,affectsData:!1,range:n})}))}_hideFakeVisualSelection(){const t=this.editor.model;t.markers.has(x_)&&t.change((t=>{t.removeMarker(x_)}))}}function T_(t){return t.getAncestors().find((t=>{return(e=t).is("attributeElement")&&!!e.getCustomProperty("link");var e}))}const D_=new RegExp("(^|\\s)(((?:(?:(?:https?|ftp):)?\\/\\/)(?:\\S+(?::\\S*)?@)?(?:(?:[1-9]\\d?|1\\d\\d|2[01]\\d|22[0-3])(?:\\.(?:1?\\d{1,2}|2[0-4]\\d|25[0-5])){2}(?:\\.(?:[1-9]\\d?|1\\d\\d|2[0-4]\\d|25[0-4]))|(((?!www\\.)|(www\\.))(?![-_])(?:[-_a-z0-9\\u00a1-\\uffff]{1,63}\\.)+(?:[a-z\\u00a1-\\uffff]{2,63})))(?::\\d{2,5})?(?:[/?#]\\S*)?)|((www.|(\\S+@))((?![-_])(?:[-_a-z0-9\\u00a1-\\uffff]{1,63}\\.))+(?:[a-z\\u00a1-\\uffff]{2,63})))$","i");class S_ extends Ii{static get requires(){return[Ep]}static get pluginName(){return"AutoLink"}init(){const t=this.editor.model.document.selection;t.on("change:range",(()=>{this.isEnabled=!t.anchor.parent.is("element","codeBlock")})),this._enableTypingHandling()}afterInit(){this._enableEnterHandling(),this._enableShiftEnterHandling()}_enableTypingHandling(){const t=this.editor,e=new Dp(t.model,(t=>{if(!function(t){return t.length>4&&" "===t[t.length-1]&&" "!==t[t.length-2]}(t))return;const e=B_(t.substr(0,t.length-1));return e?{url:e}:void 0}));e.on("matched:data",((e,n)=>{const{batch:o,range:i,url:r}=n;if(!o.isTyping)return;const s=i.end.getShiftedBy(-1),a=s.getShiftedBy(-r.length),l=t.model.createRange(a,s);this._applyAutoLink(r,l)})),e.bind("isEnabled").to(this)}_enableEnterHandling(){const t=this.editor,e=t.model,n=t.commands.get("enter");n&&n.on("execute",(()=>{const t=e.document.selection.getFirstPosition();if(!t.parent.previousSibling)return;const n=e.createRangeIn(t.parent.previousSibling);this._checkAndApplyAutoLinkOnRange(n)}))}_enableShiftEnterHandling(){const t=this.editor,e=t.model,n=t.commands.get("shiftEnter");n&&n.on("execute",(()=>{const t=e.document.selection.getFirstPosition(),n=e.createRange(e.createPositionAt(t.parent,0),t.getShiftedBy(-1));this._checkAndApplyAutoLinkOnRange(n)}))}_checkAndApplyAutoLinkOnRange(t){const e=this.editor.model,{text:n,range:o}=Tp(t,e),i=B_(n);if(i){const t=e.createRange(o.end.getShiftedBy(-i.length),o.end);this._applyAutoLink(i,t)}}_applyAutoLink(t,e){const n=this.editor.model,o=r_(t,this.editor.config.get("link.defaultProtocol"));this.isEnabled&&function(t,e){return e.schema.checkAttributeInSelection(e.createSelection(t),"linkHref")}(e,n)&&s_(o)&&!function(t){const e=t.start.nodeAfter;return e&&e.hasAttribute("linkHref")}(e)&&this._persistAutoLink(o,e)}_persistAutoLink(t,e){const n=this.editor.model,o=this.editor.plugins.get("Delete");n.enqueueChange((i=>{i.setAttribute("linkHref",t,e),n.enqueueChange((()=>{o.requestUndoOnBackspace()}))}))}}function B_(t){const e=D_.exec(t);return e?e[2]:null}class I_ extends Ri{constructor(t,e){super(t),this.type=e}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){const e=this.editor.model,n=e.document,o=Array.from(n.selection.getSelectedBlocks()).filter((t=>R_(t,e.schema))),i=void 0!==t.forceValue?!t.forceValue:this.value;e.change((t=>{if(i){let 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t=vi(this.editor.model.document.selection.getSelectedBlocks());return!!t&&t.is("element","listItem")&&t.getAttribute("listType")==this.type}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=vi(t.getSelectedBlocks());return!!n&&R_(n,e)}}function P_(t,e,n){const o=e?t[0]:t[t.length-1];if(o.is("element","listItem")){let i=o[e?"previousSibling":"nextSibling"],r=o.getAttribute("listIndent");for(;i&&i.is("element","listItem")&&i.getAttribute("listIndent")>=n;)r>i.getAttribute("listIndent")&&(r=i.getAttribute("listIndent")),i.getAttribute("listIndent")==r&&t[e?"unshift":"push"](i),i=i[e?"previousSibling":"nextSibling"]}}function R_(t,e){return e.checkChild(t.parent,"listItem")&&!e.isObject(t)}class z_ extends Ri{constructor(t,e){super(t),this._indentBy="forward"==e?1:-1}refresh(){this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model,e=t.document;let n=Array.from(e.selection.getSelectedBlocks());t.change((t=>{const e=n[n.length-1];let o=e.nextSibling;for(;o&&"listItem"==o.name&&o.getAttribute("listIndent")>e.getAttribute("listIndent");)n.push(o),o=o.nextSibling;this._indentBy<0&&(n=n.reverse());for(const e of n){const n=e.getAttribute("listIndent")+this._indentBy;n<0?t.rename(e,"paragraph"):t.setAttribute("listIndent",n,e)}this.fire("_executeCleanup",n)}))}_checkEnabled(){const t=vi(this.editor.model.document.selection.getSelectedBlocks());if(!t||!t.is("element","listItem"))return!1;if(this._indentBy>0){const e=t.getAttribute("listIndent"),n=t.getAttribute("listType");let o=t.previousSibling;for(;o&&o.is("element","listItem")&&o.getAttribute("listIndent")>=e;){if(o.getAttribute("listIndent")==e)return o.getAttribute("listType")==n;o=o.previousSibling}return!1}return!0}}function V_(t,e){const n=e.mapper,o=e.writer,i="numbered"==t.getAttribute("listType")?"ol":"ul",r=function(t){const e=t.createContainerElement("li");return e.getFillerOffset=G_,e}(o),s=o.createContainerElement(i,null);return o.insert(o.createPositionAt(s,0),r),n.bindElements(t,r),r}function F_(t,e,n,o){const i=e.parent,r=n.mapper,s=n.writer;let a=r.toViewPosition(o.createPositionBefore(t));const l=M_(t.previousSibling,{sameIndent:!0,smallerIndent:!0,listIndent:t.getAttribute("listIndent")}),c=t.previousSibling;if(l&&l.getAttribute("listIndent")==t.getAttribute("listIndent")){const t=r.toViewElement(l);a=s.breakContainer(s.createPositionAfter(t))}else if(c&&"listItem"==c.name){a=r.toViewPosition(o.createPositionAt(c,"end"));const t=r.findMappedViewAncestor(a),e=H_(t);a=e?s.createPositionBefore(e):s.createPositionAt(t,"end")}else a=r.toViewPosition(o.createPositionBefore(t));if(a=N_(a),s.insert(a,i),c&&"listItem"==c.name){const t=r.toViewElement(c),n=s.createRange(s.createPositionAt(t,0),a).getWalker({ignoreElementEnd:!0});for(const t of n)if(t.item.is("element","li")){const o=s.breakContainer(s.createPositionBefore(t.item)),i=t.item.parent,r=s.createPositionAt(e,"end");O_(s,r.nodeBefore,r.nodeAfter),s.move(s.createRangeOn(i),r),n.position=o}}else{const n=i.nextSibling;if(n&&(n.is("element","ul")||n.is("element","ol"))){let o=null;for(const e of n.getChildren()){const n=r.toModelElement(e);if(!(n&&n.getAttribute("listIndent")>t.getAttribute("listIndent")))break;o=e}o&&(s.breakContainer(s.createPositionAfter(o)),s.move(s.createRangeOn(o.parent),s.createPositionAt(e,"end")))}}O_(s,i,i.nextSibling),O_(s,i.previousSibling,i)}function O_(t,e,n){return!e||!n||"ul"!=e.name&&"ol"!=e.name||e.name!=n.name||e.getAttribute("class")!==n.getAttribute("class")?null:t.mergeContainers(t.createPositionAfter(e))}function N_(t){return t.getLastMatchingPosition((t=>t.item.is("uiElement")))}function M_(t,e){const n=!!e.sameIndent,o=!!e.smallerIndent,i=e.listIndent;let r=t;for(;r&&"listItem"==r.name;){const t=r.getAttribute("listIndent");if(n&&i==t||o&&i>t)return r;r="forward"===e.direction?r.nextSibling:r.previousSibling}return null}function L_(t,e,n,o){t.ui.componentFactory.add(e,(i=>{const r=t.commands.get(e),s=new Yu(i);return s.set({label:n,icon:o,tooltip:!0,isToggleable:!0}),s.bind("isOn","isEnabled").to(r,"value","isEnabled"),s.on("execute",(()=>{t.execute(e),t.editing.view.focus()})),s}))}function H_(t){for(const e of t.getChildren())if("ul"==e.name||"ol"==e.name)return e;return null}function q_(t,e){const n=[],o=t.parent,i={ignoreElementEnd:!1,startPosition:t,shallow:!0,direction:e},r=o.getAttribute("listIndent"),s=[...new pl(i)].filter((t=>t.item.is("element"))).map((t=>t.item));for(const t of s){if(!t.is("element","listItem"))break;if(t.getAttribute("listIndent")<r)break;if(!(t.getAttribute("listIndent")>r)){if(t.getAttribute("listType")!==o.getAttribute("listType"))break;if(t.getAttribute("listStyle")!==o.getAttribute("listStyle"))break;if(t.getAttribute("listReversed")!==o.getAttribute("listReversed"))break;if(t.getAttribute("listStart")!==o.getAttribute("listStart"))break;"backward"===e?n.unshift(t):n.push(t)}}return n}function W_(t){let e=[...t.document.selection.getSelectedBlocks()].filter((t=>t.is("element","listItem"))).map((e=>{const n=t.change((t=>t.createPositionAt(e,0)));return[...q_(n,"backward"),...q_(n,"forward")]})).flat();return e=[...new Set(e)],e}const j_=["disc","circle","square"],U_=["decimal","decimal-leading-zero","lower-roman","upper-roman","lower-latin","upper-latin"];function $_(t){return j_.includes(t)?"bulleted":U_.includes(t)?"numbered":null}function G_(){const t=!this.isEmpty&&("ul"==this.getChild(0).name||"ol"==this.getChild(0).name);return this.isEmpty||t?0:ns.call(this)}class K_ extends Ii{static get pluginName(){return"ListUtils"}getListTypeFromListStyleType(t){return $_(t)}getSelectedListItems(t){return W_(t)}getSiblingNodes(t,e){return q_(t,e)}}function Z_(t){return(e,n,o)=>{const i=o.consumable;if(!i.test(n.item,"insert")||!i.test(n.item,"attribute:listType")||!i.test(n.item,"attribute:listIndent"))return;i.consume(n.item,"insert"),i.consume(n.item,"attribute:listType"),i.consume(n.item,"attribute:listIndent");const r=n.item;F_(r,V_(r,o),o,t)}}function J_(t,e,n){if(!n.consumable.test(e.item,t.name))return;const o=n.mapper.toViewElement(e.item),i=n.writer;i.breakContainer(i.createPositionBefore(o)),i.breakContainer(i.createPositionAfter(o));const r=o.parent,s="numbered"==e.attributeNewValue?"ol":"ul";i.rename(s,r)}function Y_(t,e,n){n.consumable.consume(e.item,t.name);const o=n.mapper.toViewElement(e.item).parent,i=n.writer;O_(i,o,o.nextSibling),O_(i,o.previousSibling,o)}function Q_(t,e,n){if(n.consumable.test(e.item,t.name)&&"listItem"!=e.item.name){let t=n.mapper.toViewPosition(e.range.start);const o=n.writer,i=[];for(;("ul"==t.parent.name||"ol"==t.parent.name)&&(t=o.breakContainer(t),"li"==t.parent.name);){const e=t,n=o.createPositionAt(t.parent,"end");if(!e.isEqual(n)){const t=o.remove(o.createRange(e,n));i.push(t)}t=o.createPositionAfter(t.parent)}if(i.length>0){for(let e=0;e<i.length;e++){const n=t.nodeBefore;if(t=o.insert(t,i[e]).end,e>0){const e=O_(o,n,n.nextSibling);e&&e.parent==n&&t.offset--}}O_(o,t.nodeBefore,t.nodeAfter)}}}function X_(t,e,n){const o=n.mapper.toViewPosition(e.position),i=o.nodeBefore,r=o.nodeAfter;O_(n.writer,i,r)}function tA(t,e,n){if(n.consumable.consume(e.viewItem,{name:!0})){const t=n.writer,o=t.createElement("listItem"),i=function(t){let e=0,n=t.parent;for(;n;){if(n.is("element","li"))e++;else{const t=n.previousSibling;t&&t.is("element","li")&&e++}n=n.parent}return e}(e.viewItem);t.setAttribute("listIndent",i,o);const r=e.viewItem.parent&&"ol"==e.viewItem.parent.name?"numbered":"bulleted";if(t.setAttribute("listType",r,o),!n.safeInsert(o,e.modelCursor))return;const s=function(t,e,n){const{writer:o,schema:i}=n;let r=o.createPositionAfter(t);for(const s of e)if("ul"==s.name||"ol"==s.name)r=n.convertItem(s,r).modelCursor;else{const e=n.convertItem(s,o.createPositionAt(t,"end")),a=e.modelRange.start.nodeAfter;a&&a.is("element")&&!i.checkChild(t,a.name)&&(t=e.modelCursor.parent.is("element","listItem")?e.modelCursor.parent:rA(e.modelCursor),r=o.createPositionAfter(t))}return r}(o,e.viewItem.getChildren(),n);e.modelRange=t.createRange(e.modelCursor,s),n.updateConversionResult(o,e)}}function eA(t,e,n){if(n.consumable.test(e.viewItem,{name:!0})){const t=Array.from(e.viewItem.getChildren());for(const e of t){!(e.is("element","li")||aA(e))&&e._remove()}}}function nA(t,e,n){if(n.consumable.test(e.viewItem,{name:!0})){if(0===e.viewItem.childCount)return;const t=[...e.viewItem.getChildren()];let n=!1;for(const e of t)n&&!aA(e)&&e._remove(),aA(e)&&(n=!0)}}function oA(t){return(e,n)=>{if(n.isPhantom)return;const o=n.modelPosition.nodeBefore;if(o&&o.is("element","listItem")){const e=n.mapper.toViewElement(o),i=e.getAncestors().find(aA),r=t.createPositionAt(e,0).getWalker();for(const t of r){if("elementStart"==t.type&&t.item.is("element","li")){n.viewPosition=t.previousPosition;break}if("elementEnd"==t.type&&t.item==i){n.viewPosition=t.nextPosition;break}}}}}function iA(t,[e,n,o]){let i,r=e.is("documentFragment")?e.getChild(0):e;if(i=n?this.createSelection(n,o):this.document.selection,r&&r.is("element","listItem")){const t=i.getFirstPosition();let e=null;if(t.parent.is("element","listItem")?e=t.parent:t.nodeBefore&&t.nodeBefore.is("element","listItem")&&(e=t.nodeBefore),e){const t=e.getAttribute("listIndent");if(t>0)for(;r&&r.is("element","listItem");)r._setAttribute("listIndent",r.getAttribute("listIndent")+t),r=r.nextSibling}}}function rA(t){const e=new pl({startPosition:t});let n;do{n=e.next()}while(!n.value.item.is("element","listItem"));return n.value.item}function sA(t,e,n,o,i,r){const s=M_(e.nodeBefore,{sameIndent:!0,smallerIndent:!0,listIndent:t,foo:"b"}),a=i.mapper,l=i.writer,c=s?s.getAttribute("listIndent"):null;let d;if(s)if(c==t){const t=a.toViewElement(s).parent;d=l.createPositionAfter(t)}else{const t=r.createPositionAt(s,"end");d=a.toViewPosition(t)}else d=n;d=N_(d);for(const t of[...o.getChildren()])aA(t)&&(d=l.move(l.createRangeOn(t),d).end,O_(l,t,t.nextSibling),O_(l,t.previousSibling,t))}function aA(t){return t.is("element","ol")||t.is("element","ul")}class lA extends Ii{static get pluginName(){return"ListEditing"}static get requires(){return[Pf,Ep,K_]}init(){const t=this.editor;t.model.schema.register("listItem",{inheritAllFrom:"$block",allowAttributes:["listType","listIndent"]});const e=t.data,n=t.editing;var o;t.model.document.registerPostFixer((e=>function(t,e){const n=t.document.differ.getChanges(),o=new Map;let i=!1;for(const o of 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n=e.viewPosition,i=n.parent,r=e.mapper;if("ul"==i.name||"ol"==i.name){if(n.isAtEnd){const t=r.toModelElement(n.nodeBefore),i=r.getModelLength(n.nodeBefore);e.modelPosition=o.createPositionBefore(t).getShiftedBy(i)}else{const t=r.toModelElement(n.nodeAfter);e.modelPosition=o.createPositionBefore(t)}t.stop()}else if("li"==i.name&&n.nodeBefore&&("ul"==n.nodeBefore.name||"ol"==n.nodeBefore.name)){const s=r.toModelElement(i);let a=1,l=n.nodeBefore;for(;l&&aA(l);)a+=r.getModelLength(l),l=l.previousSibling;e.modelPosition=o.createPositionBefore(s).getShiftedBy(a),t.stop()}})),e.mapper.on("modelToViewPosition",oA(n.view)),t.conversion.for("editingDowncast").add((e=>{e.on("insert",Q_,{priority:"high"}),e.on("insert:listItem",Z_(t.model)),e.on("attribute:listType:listItem",J_,{priority:"high"}),e.on("attribute:listType:listItem",Y_,{priority:"low"}),e.on("attribute:listIndent:listItem",function(t){return(e,n,o)=>{if(!o.consumable.consume(n.item,"attribute:listIndent"))return;const 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r.createRangeIn(c).getItems())o.mapper.unbindViewElement(t);e.stop()}}(t.model)),e.on("remove",X_,{priority:"low"})})),t.conversion.for("dataDowncast").add((e=>{e.on("insert",Q_,{priority:"high"}),e.on("insert:listItem",Z_(t.model))})),t.conversion.for("upcast").add((t=>{t.on("element:ul",eA,{priority:"high"}),t.on("element:ol",eA,{priority:"high"}),t.on("element:li",nA,{priority:"high"}),t.on("element:li",tA)})),t.model.on("insertContent",iA,{priority:"high"}),t.commands.add("numberedList",new I_(t,"numbered")),t.commands.add("bulletedList",new I_(t,"bulleted")),t.commands.add("indentList",new z_(t,"forward")),t.commands.add("outdentList",new z_(t,"backward"));const i=n.view.document;this.listenTo(i,"enter",((t,e)=>{const n=this.editor.model.document,o=n.selection.getLastPosition().parent;n.selection.isCollapsed&&"listItem"==o.name&&o.isEmpty&&(this.editor.execute("outdentList"),e.preventDefault(),t.stop())}),{context:"li"}),this.listenTo(i,"delete",((t,e)=>{if("backward"!==e.direction)return;const n=this.editor.model.document.selection;if(!n.isCollapsed)return;const o=n.getFirstPosition();if(!o.isAtStart)return;const i=o.parent;if("listItem"!==i.name)return;i.previousSibling&&"listItem"===i.previousSibling.name||(this.editor.execute("outdentList"),e.preventDefault(),t.stop())}),{context:"li"}),this.listenTo(t.editing.view.document,"tab",((e,n)=>{const o=n.shiftKey?"outdentList":"indentList";this.editor.commands.get(o).isEnabled&&(t.execute(o),n.stopPropagation(),n.preventDefault(),e.stop())}),{context:"li"})}afterInit(){const t=this.editor.commands,e=t.get("indent"),n=t.get("outdent");e&&e.registerChildCommand(t.get("indentList")),n&&n.registerChildCommand(t.get("outdentList"))}}function cA(t){let e=1;for(const n of t.getChildren())if("ul"==n.name||"ol"==n.name)for(const t of n.getChildren())e+=cA(t);return e}const dA='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM3.5 3v5H2V3.7H1v-1h2.5V3zM.343 17.857l2.59-3.257H2.92a.6.6 0 1 0-1.04 0H.302a2 2 0 1 1 3.995 0h-.001c-.048.405-.16.734-.333.988-.175.254-.59.692-1.244 1.312H4.3v1h-4l.043-.043zM7 14.75a.75.75 0 0 1 .75-.75h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75z"/></svg>',hA='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0C1 4.784 1.777 4 2.75 4c.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75C1.784 7.5 1 6.723 1 5.75zm6 9c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0c0-.966.777-1.75 1.75-1.75.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75-.966 0-1.75-.777-1.75-1.75z"/></svg>';class uA extends Ii{static get pluginName(){return"ListUI"}init(){const t=this.editor.t;L_(this.editor,"numberedList",t("Numbered List"),dA),L_(this.editor,"bulletedList",t("Bulleted List"),hA)}}class gA extends Ri{constructor(t,e){super(t),this._defaultType=e}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){this._tryToConvertItemsToList(t);const e=this.editor.model,n=W_(e);n.length&&e.change((e=>{for(const o of n)e.setAttribute("listStyle",t.type||this._defaultType,o)}))}_getValue(){const t=this.editor.model.document.selection.getFirstPosition().parent;return t&&t.is("element","listItem")?t.getAttribute("listStyle"):null}_checkEnabled(){const t=this.editor,e=t.commands.get("numberedList"),n=t.commands.get("bulletedList");return e.isEnabled||n.isEnabled}_tryToConvertItemsToList(t){if(!t.type)return;const e=$_(t.type);if(!e)return;const n=this.editor,o=e+"List";n.commands.get(o).value||n.execute(o)}}class mA extends Ri{refresh(){const t=this._getValue();this.value=t,this.isEnabled=null!=t}execute(t={}){const e=this.editor.model,n=W_(e).filter((t=>"numbered"==t.getAttribute("listType")));e.change((e=>{for(const o of n)e.setAttribute("listReversed",!!t.reversed,o)}))}_getValue(){const t=this.editor.model.document.selection.getFirstPosition().parent;return t&&t.is("element","listItem")&&"numbered"==t.getAttribute("listType")?t.getAttribute("listReversed"):null}}class pA extends Ri{refresh(){const t=this._getValue();this.value=t,this.isEnabled=null!=t}execute(t={}){const e=this.editor.model,n=W_(e).filter((t=>"numbered"==t.getAttribute("listType")));e.change((e=>{for(const o of n)e.setAttribute("listStart",t.startIndex>=0?t.startIndex:1,o)}))}_getValue(){const t=this.editor.model.document.selection.getFirstPosition().parent;return t&&t.is("element","listItem")&&"numbered"==t.getAttribute("listType")?t.getAttribute("listStart"):null}}const fA="default";class bA extends Ii{static get requires(){return[lA]}static get pluginName(){return"ListPropertiesEditing"}constructor(t){super(t),t.config.define("list",{properties:{styles:!0,startIndex:!1,reversed:!1}})}init(){const t=this.editor,e=t.model,n=function(t){const e=[];t.styles&&e.push({attributeName:"listStyle",defaultValue:fA,addCommand(t){t.commands.add("listStyle",new gA(t,fA))},appliesToListItem:()=>!0,setAttributeOnDowncast(t,e,n){e&&e!==fA?t.setStyle("list-style-type",e,n):t.removeStyle("list-style-type",n)},getAttributeOnUpcast:t=>t.getStyle("list-style-type")||fA});t.reversed&&e.push({attributeName:"listReversed",defaultValue:!1,addCommand(t){t.commands.add("listReversed",new mA(t))},appliesToListItem:t=>"numbered"==t.getAttribute("listType"),setAttributeOnDowncast(t,e,n){e?t.setAttribute("reversed","reversed",n):t.removeAttribute("reversed",n)},getAttributeOnUpcast:t=>t.hasAttribute("reversed")});t.startIndex&&e.push({attributeName:"listStart",defaultValue:1,addCommand(t){t.commands.add("listStart",new pA(t))},appliesToListItem:t=>"numbered"==t.getAttribute("listType"),setAttributeOnDowncast(t,e,n){0==e||e>1?t.setAttribute("start",e,n):t.removeAttribute("start",n)},getAttributeOnUpcast(t){const e=t.getAttribute("start");return e>=0?e:1}});return e}(t.config.get("list.properties"));e.schema.extend("listItem",{allowAttributes:n.map((t=>t.attributeName))});for(const e of n)e.addCommand(t);var o;this.listenTo(t.commands.get("indentList"),"_executeCleanup",function(t,e){return(n,o)=>{const i=o[0],r=i.getAttribute("listIndent"),s=o.filter((t=>t.getAttribute("listIndent")===r));let a=null;i.previousSibling.getAttribute("listIndent")+1!==r&&(a=M_(i.previousSibling,{sameIndent:!0,direction:"backward",listIndent:r})),t.model.change((t=>{for(const n of s)for(const o of e)if(o.appliesToListItem(n)){const e=null==a?o.defaultValue:a.getAttribute(o.attributeName);t.setAttribute(o.attributeName,e,n)}}))}}(t,n)),this.listenTo(t.commands.get("outdentList"),"_executeCleanup",function(t,e){return(n,o)=>{if(!(o=o.reverse().filter((t=>t.is("element","listItem")))).length)return;const i=o[0].getAttribute("listIndent"),r=o[0].getAttribute("listType");let s=o[0].previousSibling;if(s.is("element","listItem"))for(;s.getAttribute("listIndent")!==i;)s=s.previousSibling;else s=null;s||(s=o[o.length-1].nextSibling),s&&s.is("element","listItem")&&s.getAttribute("listType")===r&&t.model.change((t=>{const n=o.filter((t=>t.getAttribute("listIndent")===i));for(const o of n)for(const n of e)if(n.appliesToListItem(o)){const e=n.attributeName,i=s.getAttribute(e);t.setAttribute(e,i,o)}}))}}(t,n)),this.listenTo(t.commands.get("bulletedList"),"_executeCleanup",_A(t)),this.listenTo(t.commands.get("numberedList"),"_executeCleanup",_A(t)),e.document.registerPostFixer(function(t,e){return n=>{let o=!1;const i=AA(t.model.document.differ.getChanges()).filter((t=>"todo"!==t.getAttribute("listType")));if(!i.length)return o;let r=i[i.length-1].nextSibling;if((!r||!r.is("element","listItem"))&&(r=i[0].previousSibling,r)){const t=i[0].getAttribute("listIndent");for(;r.is("element","listItem")&&r.getAttribute("listIndent")!==t&&(r=r.previousSibling,r););}for(const t of e){const e=t.attributeName;for(const s of i)if(t.appliesToListItem(s))if(s.hasAttribute(e)){const i=s.previousSibling;wA(i,s,t.attributeName)&&(n.setAttribute(e,i.getAttribute(e),s),o=!0)}else kA(r,s,t)?n.setAttribute(e,r.getAttribute(e),s):n.setAttribute(e,t.defaultValue,s),o=!0;else n.removeAttribute(e,s)}return o}}(t,n)),t.conversion.for("upcast").add((o=n,t=>{t.on("element:li",((t,e,n)=>{const i=e.viewItem.parent,r=e.modelRange.start.nodeAfter||e.modelRange.end.nodeBefore;for(const t of o)if(t.appliesToListItem(r)){const e=t.getAttributeOnUpcast(i);n.writer.setAttribute(t.attributeName,e,r)}}),{priority:"low"})})),t.conversion.for("downcast").add(function(t){return n=>{for(const o of t)n.on(`attribute:${o.attributeName}:listItem`,((t,n,i)=>{const r=i.writer,s=n.item,a=M_(s.previousSibling,{sameIndent:!0,listIndent:s.getAttribute("listIndent"),direction:"backward"}),l=i.mapper.toViewElement(s);e(s,a)||r.breakContainer(r.createPositionBefore(l)),o.setAttributeOnDowncast(r,n.attributeNewValue,l.parent)}),{priority:"low"})};function e(t,e){return e&&t.getAttribute("listType")===e.getAttribute("listType")&&t.getAttribute("listIndent")===e.getAttribute("listIndent")&&t.getAttribute("listStyle")===e.getAttribute("listStyle")&&t.getAttribute("listReversed")===e.getAttribute("listReversed")&&t.getAttribute("listStart")===e.getAttribute("listStart")}}(n)),this._mergeListAttributesWhileMergingLists(n)}afterInit(){const t=this.editor;t.commands.get("todoList")&&t.model.document.registerPostFixer(function(t){return e=>{const n=AA(t.model.document.differ.getChanges()).filter((t=>"todo"===t.getAttribute("listType")&&(t.hasAttribute("listStyle")||t.hasAttribute("listReversed")||t.hasAttribute("listStart"))));if(!n.length)return!1;for(const t of n)e.removeAttribute("listStyle",t),e.removeAttribute("listReversed",t),e.removeAttribute("listStart",t);return!0}}(t))}_mergeListAttributesWhileMergingLists(t){const e=this.editor.model;let n;this.listenTo(e,"deleteContent",((t,[e])=>{const o=e.getFirstPosition(),i=e.getLastPosition();if(o.parent===i.parent)return;if(!o.parent.is("element","listItem"))return;const r=i.parent.nextSibling;if(!r||!r.is("element","listItem"))return;const s=M_(o.parent,{sameIndent:!0,listIndent:r.getAttribute("listIndent")});s&&s.getAttribute("listType")===r.getAttribute("listType")&&(n=s)}),{priority:"high"}),this.listenTo(e,"deleteContent",(()=>{n&&(e.change((e=>{const o=M_(n.nextSibling,{sameIndent:!0,listIndent:n.getAttribute("listIndent"),direction:"forward"});if(!o)return void(n=null);const i=[o,...q_(e.createPositionAt(o,0),"forward")];for(const o of i)for(const i of t)if(i.appliesToListItem(o)){const t=i.attributeName,r=n.getAttribute(t);e.setAttribute(t,r,o)}})),n=null)}),{priority:"low"})}}function kA(t,e,n){if(!t)return!1;const o=t.getAttribute(n.attributeName);return!!o&&(o!=n.defaultValue&&t.getAttribute("listType")===e.getAttribute("listType"))}function wA(t,e,n){if(!t||!t.is("element","listItem"))return!1;if(e.getAttribute("listType")!==t.getAttribute("listType"))return!1;const o=t.getAttribute("listIndent");if(o<1||o!==e.getAttribute("listIndent"))return!1;const i=t.getAttribute(n);return!(!i||i===e.getAttribute(n))}function _A(t){return(e,n)=>{n=n.filter((t=>t.is("element","listItem"))),t.model.change((t=>{for(const e of n)t.removeAttribute("listStyle",e)}))}}function AA(t){const e=[];for(const n of t){const t=CA(n);t&&t.is("element","listItem")&&e.push(t)}return e}function CA(t){return"attribute"===t.type?t.range.start.nodeAfter:"insert"===t.type?t.position.nodeAfter:null}var vA=n(4721),yA={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(vA.Z,yA);vA.Z.locals;class xA extends _u{constructor(t,e){super(t);const n=this.bindTemplate;this.set("isCollapsed",!1),this.set("label",""),this.buttonView=this._createButtonView(),this.children=this.createCollection(),this.set("_collapsibleAriaLabelUid"),e&&this.children.addMany(e),this.setTemplate({tag:"div",attributes:{class:["ck","ck-collapsible",n.if("isCollapsed","ck-collapsible_collapsed")]},children:[this.buttonView,{tag:"div",attributes:{class:["ck","ck-collapsible__children"],role:"region",hidden:n.if("isCollapsed","hidden"),"aria-labelledby":n.to("_collapsibleAriaLabelUid")},children:this.children}]})}render(){super.render(),this._collapsibleAriaLabelUid=this.buttonView.labelView.element.id}_createButtonView(){const t=new Yu(this.locale),e=t.bindTemplate;return t.set({withText:!0,icon:lg}),t.extendTemplate({attributes:{"aria-expanded":e.to("isOn",(t=>String(t)))}}),t.bind("label").to(this),t.bind("isOn").to(this,"isCollapsed",(t=>!t)),t.on("execute",(()=>{this.isCollapsed=!this.isCollapsed})),t}}var EA=n(6082),TA={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(EA.Z,TA);EA.Z.locals;class DA extends _u{constructor(t,{enabledProperties:e,styleButtonViews:n,styleGridAriaLabel:o}){super(t);const i=["ck","ck-list-properties"];this.children=this.createCollection(),this.stylesView=null,this.additionalPropertiesCollapsibleView=null,this.startIndexFieldView=null,this.reversedSwitchButtonView=null,this.focusTracker=new yi,this.keystrokes=new xi,this.focusables=new Jh,this.focusCycler=new bg({focusables:this.focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),e.styles?(this.stylesView=this._createStylesView(n,o),this.children.add(this.stylesView)):i.push("ck-list-properties_without-styles"),(e.startIndex||e.reversed)&&(this._addNumberedListPropertyViews(e,n),i.push("ck-list-properties_with-numbered-properties")),this.setTemplate({tag:"div",attributes:{class:i},children:this.children})}render(){if(super.render(),this.stylesView){this.focusables.add(this.stylesView),this.focusTracker.add(this.stylesView.element),(this.startIndexFieldView||this.reversedSwitchButtonView)&&(this.focusables.add(this.children.last.buttonView),this.focusTracker.add(this.children.last.buttonView.element));for(const t of this.stylesView.children)this.stylesView.focusTracker.add(t.element);ju({keystrokeHandler:this.stylesView.keystrokes,focusTracker:this.stylesView.focusTracker,gridItems:this.stylesView.children,numberOfColumns:()=>Po.window.getComputedStyle(this.stylesView.element).getPropertyValue("grid-template-columns").split(" ").length,uiLanguageDirection:this.locale&&this.locale.uiLanguageDirection})}if(this.startIndexFieldView){this.focusables.add(this.startIndexFieldView),this.focusTracker.add(this.startIndexFieldView.element),this.listenTo(this.startIndexFieldView.element,"selectstart",((t,e)=>{e.stopPropagation()}),{priority:"high"});const t=t=>t.stopPropagation();this.keystrokes.set("arrowright",t),this.keystrokes.set("arrowleft",t),this.keystrokes.set("arrowup",t),this.keystrokes.set("arrowdown",t)}this.reversedSwitchButtonView&&(this.focusables.add(this.reversedSwitchButtonView),this.focusTracker.add(this.reversedSwitchButtonView.element)),this.keystrokes.listenTo(this.element)}focus(){this.focusCycler.focusFirst()}focusLast(){this.focusCycler.focusLast()}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}_createStylesView(t,e){const n=new _u(this.locale);return n.children=n.createCollection(this.locale),n.children.addMany(t),n.setTemplate({tag:"div",attributes:{"aria-label":e,class:["ck","ck-list-styles-list"]},children:n.children}),n.children.delegate("execute").to(this),n.focus=function(){this.children.first.focus()},n.focusTracker=new yi,n.keystrokes=new xi,n.render(),n.keystrokes.listenTo(n.element),n}_addNumberedListPropertyViews(t){const e=this.locale.t,n=[];t.startIndex&&(this.startIndexFieldView=this._createStartIndexField(),n.push(this.startIndexFieldView)),t.reversed&&(this.reversedSwitchButtonView=this._createReversedSwitchButton(),n.push(this.reversedSwitchButtonView)),t.styles?(this.additionalPropertiesCollapsibleView=new xA(this.locale,n),this.additionalPropertiesCollapsibleView.set({label:e("List properties"),isCollapsed:!0}),this.additionalPropertiesCollapsibleView.buttonView.bind("isEnabled").toMany(n,"isEnabled",((...t)=>t.some((t=>t)))),this.additionalPropertiesCollapsibleView.buttonView.on("change:isEnabled",((t,e,n)=>{n||(this.additionalPropertiesCollapsibleView.isCollapsed=!0)})),this.children.add(this.additionalPropertiesCollapsibleView)):this.children.addMany(n)}_createStartIndexField(){const t=this.locale.t,e=new am(this.locale,cm);return e.set({label:t("Start at"),class:"ck-numbered-list-properties__start-index"}),e.fieldView.set({min:0,step:1,value:1,inputMode:"numeric"}),e.fieldView.on("input",(()=>{const n=e.fieldView.element,o=n.valueAsNumber;Number.isNaN(o)||(n.checkValidity()?this.fire("listStart",{startIndex:o}):e.errorText=t("Start index must be greater than 0."))})),e}_createReversedSwitchButton(){const t=this.locale.t,e=new tg(this.locale);return e.set({withText:!0,label:t("Reversed order"),class:"ck-numbered-list-properties__reversed-order"}),e.delegate("execute").to(this,"listReversed"),e}}var SA=n(2417),BA={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(SA.Z,BA);SA.Z.locals;class IA extends Ii{static get pluginName(){return"ListPropertiesUI"}init(){const t=this.editor,e=t.locale.t,n=t.config.get("list.properties");n.styles&&t.ui.componentFactory.add("bulletedList",PA({editor:t,parentCommandName:"bulletedList",buttonLabel:e("Bulleted List"),buttonIcon:hA,styleGridAriaLabel:e("Bulleted list styles toolbar"),styleDefinitions:[{label:e("Toggle the disc list style"),tooltip:e("Disc"),type:"disc",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z" fill-opacity=".163"/><path d="M11 27a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6z"/></svg>'},{label:e("Toggle the circle list style"),tooltip:e("Circle"),type:"circle",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z" fill-opacity=".163"/><path d="M11 27a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4zm0-10a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4zm0-10a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4z"/></svg>'},{label:e("Toggle the square list style"),tooltip:e("Square"),type:"square",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 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r=t.locale,s=t.config.get("list.properties");let a;"numberedList"!=n&&(s.startIndex=!1,s.reversed=!1);if(s.styles){const e=t.commands.get("listStyle"),i=function({editor:t,listStyleCommand:e,parentCommandName:n}){const o=t.locale,i=t.commands.get(n);return({label:n,type:r,icon:s,tooltip:a})=>{const l=new Yu(o);return l.set({label:n,icon:s,tooltip:a}),e.on("change:value",(()=>{l.isOn=e.value===r})),l.on("execute",(()=>{i.value?e.value!==r?t.execute("listStyle",{type:r}):t.execute("listStyle",{type:e._defaultType}):t.model.change((()=>{t.execute("listStyle",{type:r})}))})),l}}({editor:t,parentCommandName:n,listStyleCommand:e}),r="function"==typeof e.isStyleTypeSupported?t=>e.isStyleTypeSupported(t.type):()=>!0;a=o.filter(r).map(i)}const l=new DA(r,{styleGridAriaLabel:i,enabledProperties:s,styleButtonViews:a});s.styles&&qg(e,(()=>l.stylesView.children.find((t=>t.isOn))));if(s.startIndex){const e=t.commands.get("listStart");l.startIndexFieldView.bind("isEnabled").to(e),l.startIndexFieldView.fieldView.bind("value").to(e),l.on("listStart",((e,n)=>t.execute("listStart",n)))}if(s.reversed){const e=t.commands.get("listReversed");l.reversedSwitchButtonView.bind("isEnabled").to(e),l.reversedSwitchButtonView.bind("isOn").to(e,"value"),l.on("listReversed",(()=>{const n=e.value;t.execute("listReversed",{reversed:!n})}))}return l.delegate("execute").to(e),l}({editor:t,dropdownView:l,parentCommandName:e,styleGridAriaLabel:i,styleDefinitions:r});return l.panelView.children.add(d),l.on("execute",(()=>{t.editing.view.focus()})),l}}const RA="todoListChecked";class zA extends Ri{constructor(t){super(t),this._selectedElements=[],this.on("execute",(()=>{this.refresh()}),{priority:"highest"})}refresh(){this._selectedElements=this._getSelectedItems(),this.value=this._selectedElements.every((t=>!!t.getAttribute("todoListChecked"))),this.isEnabled=!!this._selectedElements.length}_getSelectedItems(){const t=this.editor.model,e=t.schema,n=t.document.selection.getFirstRange(),o=n.start.parent,i=[];e.checkAttribute(o,RA)&&i.push(o);for(const t of n.getItems())e.checkAttribute(t,RA)&&!i.includes(t)&&i.push(t);return i}execute(t={}){this.editor.model.change((e=>{for(const n of this._selectedElements){(void 0===t.forceValue?!this.value:t.forceValue)?e.setAttribute(RA,!0,n):e.removeAttribute(RA,n)}}))}}function VA(t,e,n){const o=e.modelCursor,i=o.parent,r=e.viewItem;if("checkbox"!=r.getAttribute("type")||"listItem"!=i.name||!o.isAtStart)return;if(!n.consumable.consume(r,{name:!0}))return;const 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l=n.writer.createElement("table",a);if(n.safeInsert(l,e.modelCursor)){if(n.consumable.consume(o,{name:!0}),i.forEach((t=>n.convertItem(t,n.writer.createPositionAt(l,"end")))),n.convertChildren(o,n.writer.createPositionAt(l,"end")),l.isEmpty){const t=n.writer.createElement("tableRow");n.writer.insert(t,n.writer.createPositionAt(l,"end")),hC(n.writer,n.writer.createPositionAt(t,"end"))}n.updateConversionResult(l,e)}}))}}function pC(t){return e=>{e.on(`element:${t}`,((t,e,n)=>{if(e.modelRange&&e.viewItem.isEmpty){const t=e.modelRange.start.nodeAfter,o=n.writer.createPositionAt(t,0);n.writer.insertElement("paragraph",o)}}),{priority:"low"})}}function fC(t){let e=0,n=0;const o=Array.from(t.getChildren()).filter((t=>"th"===t.name||"td"===t.name));for(;n<o.length&&"th"===o[n].name;){const t=o[n];e+=parseInt(t.getAttribute("colspan")||1),n++}return e}class bC{constructor(t,e={}){this._table=t,this._startRow=void 0!==e.row?e.row:e.startRow||0,this._endRow=void 0!==e.row?e.row:e.endRow,this._startColumn=void 0!==e.column?e.column:e.startColumn||0,this._endColumn=void 0!==e.column?e.column:e.endColumn,this._includeAllSlots=!!e.includeAllSlots,this._skipRows=new Set,this._row=0,this._rowIndex=0,this._column=0,this._cellIndex=0,this._spannedCells=new Map,this._nextCellAtColumn=-1}[Symbol.iterator](){return this}next(){const t=this._table.getChild(this._rowIndex);if(!t||this._isOverEndRow())return{done:!0};if(!t.is("element","tableRow"))return this._rowIndex++,this.next();if(this._isOverEndColumn())return this._advanceToNextRow();let e=null;const n=this._getSpanned();if(n)this._includeAllSlots&&!this._shouldSkipSlot()&&(e=this._formatOutValue(n.cell,n.row,n.column));else{const n=t.getChild(this._cellIndex);if(!n)return this._advanceToNextRow();const o=parseInt(n.getAttribute("colspan")||1),i=parseInt(n.getAttribute("rowspan")||1);(o>1||i>1)&&this._recordSpans(n,i,o),this._shouldSkipSlot()||(e=this._formatOutValue(n)),this._nextCellAtColumn=this._column+o}return this._column++,this._column==this._nextCellAtColumn&&this._cellIndex++,e||this.next()}skipRow(t){this._skipRows.add(t)}_advanceToNextRow(){return this._row++,this._rowIndex++,this._column=0,this._cellIndex=0,this._nextCellAtColumn=-1,this.next()}_isOverEndRow(){return void 0!==this._endRow&&this._row>this._endRow}_isOverEndColumn(){return void 0!==this._endColumn&&this._column>this._endColumn}_formatOutValue(t,e=this._row,n=this._column){return{done:!1,value:new kC(this,t,e,n)}}_shouldSkipSlot(){const t=this._skipRows.has(this._row),e=this._row<this._startRow,n=this._column<this._startColumn,o=void 0!==this._endColumn&&this._column>this._endColumn;return t||e||n||o}_getSpanned(){const t=this._spannedCells.get(this._row);return t&&t.get(this._column)||null}_recordSpans(t,e,n){const o={cell:t,row:this._row,column:this._column};for(let t=this._row;t<this._row+e;t++)for(let e=this._column;e<this._column+n;e++)t==this._row&&e==this._column||this._markSpannedCell(t,e,o)}_markSpannedCell(t,e,n){this._spannedCells.has(t)||this._spannedCells.set(t,new Map);this._spannedCells.get(t).set(e,n)}}class kC{constructor(t,e,n,o){this.cell=e,this.row=t._row,this.column=t._column,this.cellAnchorRow=n,this.cellAnchorColumn=o,this._cellIndex=t._cellIndex,this._rowIndex=t._rowIndex,this._table=t._table}get isAnchor(){return this.row===this.cellAnchorRow&&this.column===this.cellAnchorColumn}get cellWidth(){return parseInt(this.cell.getAttribute("colspan")||1)}get cellHeight(){return parseInt(this.cell.getAttribute("rowspan")||1)}get rowIndex(){return this._rowIndex}getPositionBefore(){return this._table.root.document.model.createPositionAt(this._table.getChild(this.row),this._cellIndex)}}function wC(t,e={}){return(n,{writer:o})=>{const i=n.getAttribute("headingRows")||0,r=[];i>0&&r.push(o.createContainerElement("thead",null,o.createSlot((t=>t.is("element","tableRow")&&t.index<i)))),i<t.getRows(n)&&r.push(o.createContainerElement("tbody",null,o.createSlot((t=>t.is("element","tableRow")&&t.index>=i))));const s=o.createContainerElement("figure",{class:"table"},[o.createContainerElement("table",null,r),o.createSlot((t=>!t.is("element","tableRow")))]);return e.asWidget?function(t,e){return e.setCustomProperty("table",!0,t),hb(t,e,{hasSelectionHandle:!0})}(s,o):s}}function _C(t={}){return(e,{writer:n})=>{const o=e.parent,i=o.parent,r=i.getChildIndex(o),s=new bC(i,{row:r}),a=i.getAttribute("headingRows")||0,l=i.getAttribute("headingColumns")||0;for(const o of s)if(o.cell==e){const e=o.row<a||o.column<l?"th":"td";return t.asWidget?pb(n.createEditableElement(e),n):n.createContainerElement(e)}}}function AC(t={}){return(e,{writer:n,consumable:o,mapper:i})=>{if(e.parent.is("element","tableCell")&&CC(e))return t.asWidget?n.createContainerElement("span",{class:"ck-table-bogus-paragraph"}):(o.consume(e,"insert"),void i.bindElements(e,i.toViewElement(e.parent)))}}function CC(t){return 1==t.parent.childCount&&![...t.getAttributeKeys()].length}class vC extends Ri{refresh(){const t=this.editor.model,e=t.document.selection,n=t.schema;this.isEnabled=function(t,e){const n=t.getFirstPosition().parent,o=n===n.root?n:n.parent;return e.checkChild(o,"table")}(e,n)}execute(t={}){const e=this.editor.model,n=this.editor.plugins.get("TableUtils"),o=this.editor.config.get("table"),i=o.defaultHeadings.rows,r=o.defaultHeadings.columns;void 0===t.headingRows&&i&&(t.headingRows=i),void 0===t.headingColumns&&r&&(t.headingColumns=r),e.change((o=>{const i=n.createTable(o,t);e.insertObject(i,null,null,{findOptimalPosition:"auto"}),o.setSelection(o.createPositionAt(i.getNodeByPath([0,0,0]),0))}))}}class yC extends Ri{constructor(t,e={}){super(t),this.order=e.order||"below"}refresh(){const t=this.editor.model.document.selection,e=!!this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(t).length;this.isEnabled=e}execute(){const t=this.editor,e=t.model.document.selection,n=t.plugins.get("TableUtils"),o="above"===this.order,i=n.getSelectionAffectedTableCells(e),r=n.getRowIndexes(i),s=o?r.first:r.last,a=i[0].findAncestor("table");n.insertRows(a,{at:o?s:s+1,copyStructureFromAbove:!o})}}class xC extends Ri{constructor(t,e={}){super(t),this.order=e.order||"right"}refresh(){const t=this.editor.model.document.selection,e=!!this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(t).length;this.isEnabled=e}execute(){const t=this.editor,e=t.model.document.selection,n=t.plugins.get("TableUtils"),o="left"===this.order,i=n.getSelectionAffectedTableCells(e),r=n.getColumnIndexes(i),s=o?r.first:r.last,a=i[0].findAncestor("table");n.insertColumns(a,{columns:1,at:o?s:s+1})}}class EC extends Ri{constructor(t,e={}){super(t),this.direction=e.direction||"horizontally"}refresh(){const t=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(this.editor.model.document.selection);this.isEnabled=1===t.length}execute(){const t=this.editor.plugins.get("TableUtils"),e=t.getSelectionAffectedTableCells(this.editor.model.document.selection)[0];"horizontally"===this.direction?t.splitCellHorizontally(e,2):t.splitCellVertically(e,2)}}function TC(t,e,n){const{startRow:o,startColumn:i,endRow:r,endColumn:s}=e,a=n.createElement("table"),l=r-o+1;for(let t=0;t<l;t++)n.insertElement("tableRow",a,"end");const c=[...new bC(t,{startRow:o,endRow:r,startColumn:i,endColumn:s,includeAllSlots:!0})];for(const{row:t,column:e,cell:l,isAnchor:d,cellAnchorRow:h,cellAnchorColumn:u}of c){const c=t-o,g=a.getChild(c);if(d){const o=n.cloneElement(l);n.append(o,g),PC(o,t,e,r,s,n)}else(h<o||u<i)&&hC(n,n.createPositionAt(g,"end"))}return function(t,e,n,o,i){const r=parseInt(e.getAttribute("headingRows")||0);if(r>0){dC("headingRows",r-n,t,i,0)}const s=parseInt(e.getAttribute("headingColumns")||0);if(s>0){dC("headingColumns",s-o,t,i,0)}}(a,t,o,i,n),a}function DC(t,e,n=0){const o=[],i=new bC(t,{startRow:n,endRow:e-1});for(const t of i){const{row:n,cellHeight:i}=t,r=n+i-1;n<e&&e<=r&&o.push(t)}return o}function SC(t,e,n){const o=t.parent,i=o.parent,r=o.index,s=e-r,a={},l=parseInt(t.getAttribute("rowspan"))-s;l>1&&(a.rowspan=l);const c=parseInt(t.getAttribute("colspan")||1);c>1&&(a.colspan=c);const d=r+s,h=[...new bC(i,{startRow:r,endRow:d,includeAllSlots:!0})];let u,g=null;for(const e of h){const{row:o,column:i,cell:r}=e;r===t&&void 0===u&&(u=i),void 0!==u&&u===i&&o===d&&(g=hC(n,e.getPositionBefore(),a))}return dC("rowspan",s,t,n),g}function BC(t,e){const n=[],o=new bC(t);for(const t of o){const{column:o,cellWidth:i}=t,r=o+i-1;o<e&&e<=r&&n.push(t)}return n}function IC(t,e,n,o){const i=n-e,r={},s=parseInt(t.getAttribute("colspan"))-i;s>1&&(r.colspan=s);const a=parseInt(t.getAttribute("rowspan")||1);a>1&&(r.rowspan=a);const l=hC(o,o.createPositionAfter(t),r);return dC("colspan",i,t,o),l}function PC(t,e,n,o,i,r){const s=parseInt(t.getAttribute("colspan")||1),a=parseInt(t.getAttribute("rowspan")||1);if(n+s-1>i){dC("colspan",i-n+1,t,r,1)}if(e+a-1>o){dC("rowspan",o-e+1,t,r,1)}}function RC(t,e){const n=e.getColumns(t),o=new Array(n).fill(0);for(const{column:e}of new bC(t))o[e]++;const i=o.reduce(((t,e,n)=>e?t:[...t,n]),[]);if(i.length>0){const n=i[i.length-1];return e.removeColumns(t,{at:n}),!0}return!1}function zC(t,e){const n=[],o=e.getRows(t);for(let e=0;e<o;e++){t.getChild(e).isEmpty&&n.push(e)}if(n.length>0){const o=n[n.length-1];return e.removeRows(t,{at:o}),!0}return!1}function VC(t,e){RC(t,e)||zC(t,e)}function FC(t,e){const n=Array.from(new bC(t,{startColumn:e.firstColumn,endColumn:e.lastColumn,row:e.lastRow}));if(n.every((({cellHeight:t})=>1===t)))return e.lastRow;const o=n[0].cellHeight-1;return e.lastRow+o}function OC(t,e){const n=Array.from(new bC(t,{startRow:e.firstRow,endRow:e.lastRow,column:e.lastColumn}));if(n.every((({cellWidth:t})=>1===t)))return e.lastColumn;const o=n[0].cellWidth-1;return e.lastColumn+o}class NC extends Ri{constructor(t,e){super(t),this.direction=e.direction,this.isHorizontal="right"==this.direction||"left"==this.direction}refresh(){const t=this._getMergeableCell();this.value=t,this.isEnabled=!!t}execute(){const t=this.editor.model,e=t.document,n=this.editor.plugins.get("TableUtils").getTableCellsContainingSelection(e.selection)[0],o=this.value,i=this.direction;t.change((t=>{const e="right"==i||"down"==i,r=e?n:o,s=e?o:n,a=s.parent;!function(t,e,n){MC(t)||(MC(e)&&n.remove(n.createRangeIn(e)),n.move(n.createRangeIn(t),n.createPositionAt(e,"end")));n.remove(t)}(s,r,t);const l=this.isHorizontal?"colspan":"rowspan",c=parseInt(n.getAttribute(l)||1),d=parseInt(o.getAttribute(l)||1);t.setAttribute(l,c+d,r),t.setSelection(t.createRangeIn(r));const h=this.editor.plugins.get("TableUtils");VC(a.findAncestor("table"),h)}))}_getMergeableCell(){const t=this.editor.model.document,e=this.editor.plugins.get("TableUtils"),n=e.getTableCellsContainingSelection(t.selection)[0];if(!n)return;const o=this.isHorizontal?function(t,e,n){const o=t.parent.parent,i="right"==e?t.nextSibling:t.previousSibling,r=(o.getAttribute("headingColumns")||0)>0;if(!i)return;const s="right"==e?t:i,a="right"==e?i:t,{column:l}=n.getCellLocation(s),{column:c}=n.getCellLocation(a),d=parseInt(s.getAttribute("colspan")||1),h=uC(n,s),u=uC(n,a);if(r&&h!=u)return;return l+d===c?i:void 0}(n,this.direction,e):function(t,e,n){const o=t.parent,i=o.parent,r=i.getChildIndex(o);if("down"==e&&r===n.getRows(i)-1||"up"==e&&0===r)return;const s=parseInt(t.getAttribute("rowspan")||1),a=i.getAttribute("headingRows")||0,l="down"==e&&r+s===a,c="up"==e&&r===a;if(a&&(l||c))return;const d=parseInt(t.getAttribute("rowspan")||1),h="down"==e?r+d:r,u=[...new bC(i,{endRow:h})],g=u.find((e=>e.cell===t)).column,m=u.find((({row:t,cellHeight:n,column:o})=>o===g&&("down"==e?t===h:h===t+n)));return m&&m.cell}(n,this.direction,e);if(!o)return;const i=this.isHorizontal?"rowspan":"colspan",r=parseInt(n.getAttribute(i)||1);return parseInt(o.getAttribute(i)||1)===r?o:void 0}}function MC(t){return 1==t.childCount&&t.getChild(0).is("element","paragraph")&&t.getChild(0).isEmpty}class LC extends Ri{refresh(){const t=this.editor.plugins.get("TableUtils"),e=t.getSelectionAffectedTableCells(this.editor.model.document.selection),n=e[0];if(n){const o=n.findAncestor("table"),i=this.editor.plugins.get("TableUtils").getRows(o)-1,r=t.getRowIndexes(e),s=0===r.first&&r.last===i;this.isEnabled=!s}else this.isEnabled=!1}execute(){const t=this.editor.model,e=this.editor.plugins.get("TableUtils"),n=e.getSelectionAffectedTableCells(t.document.selection),o=e.getRowIndexes(n),i=n[0],r=i.findAncestor("table"),s=e.getCellLocation(i).column;t.change((t=>{const n=o.last-o.first+1;e.removeRows(r,{at:o.first,rows:n});const i=function(t,e,n,o){const i=t.getChild(Math.min(e,o-1));let r=i.getChild(0),s=0;for(const t of i.getChildren()){if(s>n)return r;r=t,s+=parseInt(t.getAttribute("colspan")||1)}return r}(r,o.first,s,e.getRows(r));t.setSelection(t.createPositionAt(i,0))}))}}class HC extends Ri{refresh(){const t=this.editor.plugins.get("TableUtils"),e=t.getSelectionAffectedTableCells(this.editor.model.document.selection),n=e[0];if(n){const o=n.findAncestor("table"),i=t.getColumns(o),{first:r,last:s}=t.getColumnIndexes(e);this.isEnabled=s-r<i-1}else this.isEnabled=!1}execute(){const t=this.editor.plugins.get("TableUtils"),[e,n]=function(t,e){const n=e.getSelectionAffectedTableCells(t),o=n[0],i=n.pop(),r=[o,i];return o.isBefore(i)?r:r.reverse()}(this.editor.model.document.selection,t),o=e.parent.parent,i=[...new bC(o)],r={first:i.find((t=>t.cell===e)).column,last:i.find((t=>t.cell===n)).column},s=function(t,e,n,o){return parseInt(n.getAttribute("colspan")||1)>1?n:e.previousSibling||n.nextSibling?n.nextSibling||e.previousSibling:o.first?t.reverse().find((({column:t})=>t<o.first)).cell:t.reverse().find((({column:t})=>t>o.last)).cell}(i,e,n,r);this.editor.model.change((t=>{const e=r.last-r.first+1;this.editor.plugins.get("TableUtils").removeColumns(o,{at:r.first,columns:e}),t.setSelection(t.createPositionAt(s,0))}))}}class qC extends Ri{refresh(){const t=this.editor.plugins.get("TableUtils"),e=this.editor.model,n=t.getSelectionAffectedTableCells(e.document.selection),o=n.length>0;this.isEnabled=o,this.value=o&&n.every((t=>this._isInHeading(t,t.parent.parent)))}execute(t={}){if(t.forceValue===this.value)return;const e=this.editor.plugins.get("TableUtils"),n=this.editor.model,o=e.getSelectionAffectedTableCells(n.document.selection),i=o[0].findAncestor("table"),{first:r,last:s}=e.getRowIndexes(o),a=this.value?r:s+1,l=i.getAttribute("headingRows")||0;n.change((t=>{if(a){const e=DC(i,a,a>l?l:0);for(const{cell:n}of e)SC(n,a,t)}dC("headingRows",a,i,t,0)}))}_isInHeading(t,e){const n=parseInt(e.getAttribute("headingRows")||0);return!!n&&t.parent.index<n}}class WC extends Ri{refresh(){const t=this.editor.model,e=this.editor.plugins.get("TableUtils"),n=e.getSelectionAffectedTableCells(t.document.selection),o=n.length>0;this.isEnabled=o,this.value=o&&n.every((t=>uC(e,t)))}execute(t={}){if(t.forceValue===this.value)return;const e=this.editor.plugins.get("TableUtils"),n=this.editor.model,o=e.getSelectionAffectedTableCells(n.document.selection),i=o[0].findAncestor("table"),{first:r,last:s}=e.getColumnIndexes(o),a=this.value?r:s+1;n.change((t=>{if(a){const e=BC(i,a);for(const{cell:n,column:o}of e)IC(n,o,a,t)}dC("headingColumns",a,i,t,0)}))}}class jC extends Ii{static get pluginName(){return"TableUtils"}init(){this.decorate("insertColumns"),this.decorate("insertRows")}getCellLocation(t){const e=t.parent,n=e.parent,o=n.getChildIndex(e),i=new bC(n,{row:o});for(const{cell:e,row:n,column:o}of i)if(e===t)return{row:n,column:o}}createTable(t,e){const n=t.createElement("table"),o=parseInt(e.rows)||2,i=parseInt(e.columns)||2;return UC(t,n,0,o,i),e.headingRows&&dC("headingRows",Math.min(e.headingRows,o),n,t,0),e.headingColumns&&dC("headingColumns",Math.min(e.headingColumns,i),n,t,0),n}insertRows(t,e={}){const n=this.editor.model,o=e.at||0,i=e.rows||1,r=void 0!==e.copyStructureFromAbove,s=e.copyStructureFromAbove?o-1:o,a=this.getRows(t),l=this.getColumns(t);if(o>a)throw new b("tableutils-insertrows-insert-out-of-range",this,{options:e});n.change((e=>{const n=t.getAttribute("headingRows")||0;if(n>o&&dC("headingRows",n+i,t,e,0),!r&&(0===o||o===a))return void UC(e,t,o,i,l);const c=r?Math.max(o,s):o,d=new bC(t,{endRow:c}),h=new Array(l).fill(1);for(const{row:t,column:n,cellHeight:a,cellWidth:l,cell:c}of d){const d=t+a-1,u=t<=s&&s<=d;t<o&&o<=d?(e.setAttribute("rowspan",a+i,c),h[n]=-l):r&&u&&(h[n]=l)}for(let n=0;n<i;n++){const n=e.createElement("tableRow");e.insert(n,t,o);for(let t=0;t<h.length;t++){const o=h[t],i=e.createPositionAt(n,"end");o>0&&hC(e,i,o>1?{colspan:o}:null),t+=Math.abs(o)-1}}}))}insertColumns(t,e={}){const n=this.editor.model,o=e.at||0,i=e.columns||1;n.change((e=>{const n=t.getAttribute("headingColumns");o<n&&e.setAttribute("headingColumns",n+i,t);const r=this.getColumns(t);if(0===o||r===o){for(const n of t.getChildren())n.is("element","tableRow")&&$C(i,e,e.createPositionAt(n,o?"end":0));return}const s=new bC(t,{column:o,includeAllSlots:!0});for(const t of s){const{row:n,cell:r,cellAnchorColumn:a,cellAnchorRow:l,cellWidth:c,cellHeight:d}=t;if(a<o){e.setAttribute("colspan",c+i,r);const t=l+d-1;for(let e=n;e<=t;e++)s.skipRow(e)}else $C(i,e,t.getPositionBefore())}}))}removeRows(t,e){const n=this.editor.model,o=e.rows||1,i=this.getRows(t),r=e.at,s=r+o-1;if(s>i-1)throw new b("tableutils-removerows-row-index-out-of-range",this,{table:t,options:e});n.change((e=>{const{cellsToMove:n,cellsToTrim:o}=function(t,e,n){const o=new Map,i=[];for(const{row:r,column:s,cellHeight:a,cell:l}of new bC(t,{endRow:n})){const t=r+a-1;if(r>=e&&r<=n&&t>n){const t=a-(n-r+1);o.set(s,{cell:l,rowspan:t})}if(r<e&&t>=e){let o;o=t>=n?n-e+1:t-e+1,i.push({cell:l,rowspan:a-o})}}return{cellsToMove:o,cellsToTrim:i}}(t,r,s);if(n.size){!function(t,e,n,o){const i=[...new bC(t,{includeAllSlots:!0,row:e})],r=t.getChild(e);let s;for(const{column:t,cell:e,isAnchor:a}of i)if(n.has(t)){const{cell:e,rowspan:i}=n.get(t),a=s?o.createPositionAfter(s):o.createPositionAt(r,0);o.move(o.createRangeOn(e),a),dC("rowspan",i,e,o),s=e}else a&&(s=e)}(t,s+1,n,e)}for(let n=s;n>=r;n--)e.remove(t.getChild(n));for(const{rowspan:t,cell:n}of o)dC("rowspan",t,n,e);!function(t,e,n,o){const i=t.getAttribute("headingRows")||0;if(e<i){dC("headingRows",n<i?i-(n-e+1):e,t,o,0)}}(t,r,s,e),RC(t,this)||zC(t,this)}))}removeColumns(t,e){const n=this.editor.model,o=e.at,i=e.columns||1,r=e.at+i-1;n.change((e=>{!function(t,e,n){const o=t.getAttribute("headingColumns")||0;if(o&&e.first<o){const i=Math.min(o-1,e.last)-e.first+1;n.setAttribute("headingColumns",o-i,t)}}(t,{first:o,last:r},e);for(let n=r;n>=o;n--)for(const{cell:o,column:i,cellWidth:r}of[...new bC(t)])i<=n&&r>1&&i+r>n?dC("colspan",r-1,o,e):i===n&&e.remove(o);zC(t,this)||RC(t,this)}))}splitCellVertically(t,e=2){const n=this.editor.model,o=t.parent.parent,i=parseInt(t.getAttribute("rowspan")||1),r=parseInt(t.getAttribute("colspan")||1);n.change((n=>{if(r>1){const{newCellsSpan:o,updatedSpan:s}=GC(r,e);dC("colspan",s,t,n);const a={};o>1&&(a.colspan=o),i>1&&(a.rowspan=i);$C(r>e?e-1:r-1,n,n.createPositionAfter(t),a)}if(r<e){const s=e-r,a=[...new bC(o)],{column:l}=a.find((({cell:e})=>e===t)),c=a.filter((({cell:e,cellWidth:n,column:o})=>e!==t&&o===l||o<l&&o+n>l));for(const{cell:t,cellWidth:e}of c)n.setAttribute("colspan",e+s,t);const d={};i>1&&(d.rowspan=i),$C(s,n,n.createPositionAfter(t),d);const h=o.getAttribute("headingColumns")||0;h>l&&dC("headingColumns",h+s,o,n)}}))}splitCellHorizontally(t,e=2){const n=this.editor.model,o=t.parent,i=o.parent,r=i.getChildIndex(o),s=parseInt(t.getAttribute("rowspan")||1),a=parseInt(t.getAttribute("colspan")||1);n.change((n=>{if(s>1){const o=[...new bC(i,{startRow:r,endRow:r+s-1,includeAllSlots:!0})],{newCellsSpan:l,updatedSpan:c}=GC(s,e);dC("rowspan",c,t,n);const{column:d}=o.find((({cell:e})=>e===t)),h={};l>1&&(h.rowspan=l),a>1&&(h.colspan=a);for(const t of o){const{column:e,row:o}=t,i=e===d,s=(o+r+c)%l==0;o>=r+c&&i&&s&&$C(1,n,t.getPositionBefore(),h)}}if(s<e){const o=e-s,l=[...new bC(i,{startRow:0,endRow:r})];for(const{cell:e,cellHeight:i,row:s}of l)if(e!==t&&s+i>r){const t=i+o;n.setAttribute("rowspan",t,e)}const c={};a>1&&(c.colspan=a),UC(n,i,r+1,o,1,c);const d=i.getAttribute("headingRows")||0;d>r&&dC("headingRows",d+o,i,n)}}))}getColumns(t){return[...t.getChild(0).getChildren()].reduce(((t,e)=>t+parseInt(e.getAttribute("colspan")||1)),0)}getRows(t){return Array.from(t.getChildren()).reduce(((t,e)=>e.is("element","tableRow")?t+1:t),0)}createTableWalker(t,e={}){return new bC(t,e)}getSelectedTableCells(t){const e=[];for(const n of this.sortRanges(t.getRanges())){const t=n.getContainedElement();t&&t.is("element","tableCell")&&e.push(t)}return e}getTableCellsContainingSelection(t){const e=[];for(const n of t.getRanges()){const t=n.start.findAncestor("tableCell");t&&e.push(t)}return e}getSelectionAffectedTableCells(t){const e=this.getSelectedTableCells(t);return e.length?e:this.getTableCellsContainingSelection(t)}getRowIndexes(t){const e=t.map((t=>t.parent.index));return this._getFirstLastIndexesObject(e)}getColumnIndexes(t){const e=t[0].findAncestor("table"),n=[...new bC(e)].filter((e=>t.includes(e.cell))).map((t=>t.column));return this._getFirstLastIndexesObject(n)}isSelectionRectangular(t){if(t.length<2||!this._areCellInTheSameTableSection(t))return!1;const e=new Set,n=new Set;let o=0;for(const i of t){const{row:t,column:r}=this.getCellLocation(i),s=parseInt(i.getAttribute("rowspan")||1),a=parseInt(i.getAttribute("colspan")||1);e.add(t),n.add(r),s>1&&e.add(t+s-1),a>1&&n.add(r+a-1),o+=s*a}const i=function(t,e){const n=Array.from(t.values()),o=Array.from(e.values()),i=Math.max(...n),r=Math.min(...n),s=Math.max(...o),a=Math.min(...o);return(i-r+1)*(s-a+1)}(e,n);return i==o}sortRanges(t){return Array.from(t).sort(KC)}_getFirstLastIndexesObject(t){const e=t.sort(((t,e)=>t-e));return{first:e[0],last:e[e.length-1]}}_areCellInTheSameTableSection(t){const e=t[0].findAncestor("table"),n=this.getRowIndexes(t),o=parseInt(e.getAttribute("headingRows")||0);if(!this._areIndexesInSameSection(n,o))return!1;const i=parseInt(e.getAttribute("headingColumns")||0),r=this.getColumnIndexes(t);return this._areIndexesInSameSection(r,i)}_areIndexesInSameSection({first:t,last:e},n){return t<n===e<n}}function UC(t,e,n,o,i,r={}){for(let s=0;s<o;s++){const o=t.createElement("tableRow");t.insert(o,e,n),$C(i,t,t.createPositionAt(o,"end"),r)}}function $C(t,e,n,o={}){for(let i=0;i<t;i++)hC(e,n,o)}function GC(t,e){if(t<e)return{newCellsSpan:1,updatedSpan:1};const n=Math.floor(t/e);return{newCellsSpan:n,updatedSpan:t-n*e+n}}function KC(t,e){const n=t.start,o=e.start;return n.isBefore(o)?-1:1}class ZC extends Ri{refresh(){const t=this.editor.plugins.get(jC),e=t.getSelectedTableCells(this.editor.model.document.selection);this.isEnabled=t.isSelectionRectangular(e,this.editor.plugins.get(jC))}execute(){const t=this.editor.model,e=this.editor.plugins.get(jC);t.change((n=>{const o=e.getSelectedTableCells(t.document.selection),i=o.shift(),{mergeWidth:r,mergeHeight:s}=function(t,e,n){let o=0,i=0;for(const t of e){const{row:e,column:r}=n.getCellLocation(t);o=QC(t,r,o,"colspan"),i=QC(t,e,i,"rowspan")}const{row:r,column:s}=n.getCellLocation(t);return{mergeWidth:o-s,mergeHeight:i-r}}(i,o,e);dC("colspan",r,i,n),dC("rowspan",s,i,n);for(const t of o)JC(t,i,n);VC(i.findAncestor("table"),e),n.setSelection(i,"in")}))}}function JC(t,e,n){YC(t)||(YC(e)&&n.remove(n.createRangeIn(e)),n.move(n.createRangeIn(t),n.createPositionAt(e,"end"))),n.remove(t)}function YC(t){return 1==t.childCount&&t.getChild(0).is("element","paragraph")&&t.getChild(0).isEmpty}function QC(t,e,n,o){const i=parseInt(t.getAttribute(o)||1);return Math.max(n,e+i)}class XC extends Ri{constructor(t){super(t),this.affectsData=!1}refresh(){const t=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(this.editor.model.document.selection);this.isEnabled=t.length>0}execute(){const t=this.editor.model,e=this.editor.plugins.get("TableUtils"),n=e.getSelectionAffectedTableCells(t.document.selection),o=e.getRowIndexes(n),i=n[0].findAncestor("table"),r=[];for(let e=o.first;e<=o.last;e++)for(const n of i.getChild(e).getChildren())r.push(t.createRangeOn(n));t.change((t=>{t.setSelection(r)}))}}class tv extends Ri{constructor(t){super(t),this.affectsData=!1}refresh(){const t=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(this.editor.model.document.selection);this.isEnabled=t.length>0}execute(){const t=this.editor.plugins.get("TableUtils"),e=this.editor.model,n=t.getSelectionAffectedTableCells(e.document.selection),o=n[0],i=n.pop(),r=o.findAncestor("table"),s=t.getCellLocation(o),a=t.getCellLocation(i),l=Math.min(s.column,a.column),c=Math.max(s.column,a.column),d=[];for(const t of new bC(r,{startColumn:l,endColumn:c}))d.push(e.createRangeOn(t.cell));e.change((t=>{t.setSelection(d)}))}}function ev(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.differ.getChanges();let o=!1;const i=new Set;for(const e of n){let n;"table"==e.name&&"insert"==e.type&&(n=e.position.nodeAfter),"tableRow"!=e.name&&"tableCell"!=e.name||(n=e.position.findAncestor("table")),iv(e)&&(n=e.range.start.findAncestor("table")),n&&!i.has(n)&&(o=nv(n,t)||o,o=ov(n,t)||o,i.add(n))}return o}(e,t)))}function nv(t,e){let n=!1;const o=function(t){const e=parseInt(t.getAttribute("headingRows")||0),n=Array.from(t.getChildren()).reduce(((t,e)=>e.is("element","tableRow")?t+1:t),0),o=[];for(const{row:i,cell:r,cellHeight:s}of new bC(t)){if(s<2)continue;const t=i<e?e:n;if(i+s>t){const e=t-i;o.push({cell:r,rowspan:e})}}return o}(t);if(o.length){n=!0;for(const t of o)dC("rowspan",t.rowspan,t.cell,e,1)}return n}function ov(t,e){let n=!1;const o=function(t){const e=new Array(t.childCount).fill(0);for(const{rowIndex:n}of new bC(t,{includeAllSlots:!0}))e[n]++;return e}(t),i=[];for(const[e,n]of o.entries())!n&&t.getChild(e).is("element","tableRow")&&i.push(e);if(i.length){n=!0;for(const n of i.reverse())e.remove(t.getChild(n)),o.splice(n,1)}const r=o.filter(((e,n)=>t.getChild(n).is("element","tableRow"))),s=r[0];if(!r.every((t=>t===s))){const o=r.reduce(((t,e)=>e>t?e:t),0);for(const[i,s]of r.entries()){const r=o-s;if(r){for(let n=0;n<r;n++)hC(e,e.createPositionAt(t.getChild(i),"end"));n=!0}}}return n}function iv(t){const e="attribute"===t.type,n=t.attributeKey;return e&&("headingRows"===n||"colspan"===n||"rowspan"===n)}function rv(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.differ.getChanges();let o=!1;for(const e of n)"insert"==e.type&&"table"==e.name&&(o=sv(e.position.nodeAfter,t)||o),"insert"==e.type&&"tableRow"==e.name&&(o=av(e.position.nodeAfter,t)||o),"insert"==e.type&&"tableCell"==e.name&&(o=lv(e.position.nodeAfter,t)||o),cv(e)&&(o=lv(e.position.parent,t)||o);return o}(e,t)))}function sv(t,e){let n=!1;for(const o of t.getChildren())o.is("element","tableRow")&&(n=av(o,e)||n);return n}function av(t,e){let n=!1;for(const o of t.getChildren())n=lv(o,e)||n;return n}function lv(t,e){if(0==t.childCount)return e.insertElement("paragraph",t),!0;const n=Array.from(t.getChildren()).filter((t=>t.is("$text")));for(const t of n)e.wrap(e.createRangeOn(t),"paragraph");return!!n.length}function cv(t){return!(!t.position||!t.position.parent.is("element","tableCell"))&&("insert"==t.type&&"$text"==t.name||"remove"==t.type)}function dv(t,e){if(!t.is("element","paragraph"))return!1;const n=e.toViewElement(t);return!!n&&CC(t)!==n.is("element","span")}var hv=n(3881),uv={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(hv.Z,uv);hv.Z.locals;class gv extends Ii{static get pluginName(){return"TableEditing"}static get requires(){return[jC]}init(){const t=this.editor,e=t.model,n=e.schema,o=t.conversion,i=t.plugins.get(jC);n.register("table",{inheritAllFrom:"$blockObject",allowAttributes:["headingRows","headingColumns"]}),n.register("tableRow",{allowIn:"table",isLimit:!0}),n.register("tableCell",{allowContentOf:"$container",allowIn:"tableRow",allowAttributes:["colspan","rowspan"],isLimit:!0,isSelectable:!0}),o.for("upcast").add((t=>{t.on("element:figure",((t,e,n)=>{if(!n.consumable.test(e.viewItem,{name:!0,classes:"table"}))return;const o=function(t){for(const e of t.getChildren())if(e.is("element","table"))return e}(e.viewItem);if(!o||!n.consumable.test(o,{name:!0}))return;n.consumable.consume(e.viewItem,{name:!0,classes:"table"});const i=vi(n.convertItem(o,e.modelCursor).modelRange.getItems());i?(n.convertChildren(e.viewItem,n.writer.createPositionAt(i,"end")),n.updateConversionResult(i,e)):n.consumable.revert(e.viewItem,{name:!0,classes:"table"})}))})),o.for("upcast").add(mC()),o.for("editingDowncast").elementToStructure({model:{name:"table",attributes:["headingRows"]},view:wC(i,{asWidget:!0})}),o.for("dataDowncast").elementToStructure({model:{name:"table",attributes:["headingRows"]},view:wC(i)}),o.for("upcast").elementToElement({model:"tableRow",view:"tr"}),o.for("upcast").add((t=>{t.on("element:tr",((t,e)=>{e.viewItem.isEmpty&&0==e.modelCursor.index&&t.stop()}),{priority:"high"})})),o.for("downcast").elementToElement({model:"tableRow",view:(t,{writer:e})=>t.isEmpty?e.createEmptyElement("tr"):e.createContainerElement("tr")}),o.for("upcast").elementToElement({model:"tableCell",view:"td"}),o.for("upcast").elementToElement({model:"tableCell",view:"th"}),o.for("upcast").add(pC("td")),o.for("upcast").add(pC("th")),o.for("editingDowncast").elementToElement({model:"tableCell",view:_C({asWidget:!0})}),o.for("dataDowncast").elementToElement({model:"tableCell",view:_C()}),o.for("editingDowncast").elementToElement({model:"paragraph",view:AC({asWidget:!0}),converterPriority:"high"}),o.for("dataDowncast").elementToElement({model:"paragraph",view:AC(),converterPriority:"high"}),o.for("downcast").attributeToAttribute({model:"colspan",view:"colspan"}),o.for("upcast").attributeToAttribute({model:{key:"colspan",value:mv("colspan")},view:"colspan"}),o.for("downcast").attributeToAttribute({model:"rowspan",view:"rowspan"}),o.for("upcast").attributeToAttribute({model:{key:"rowspan",value:mv("rowspan")},view:"rowspan"}),t.data.mapper.on("modelToViewPosition",((t,e)=>{const n=e.modelPosition.parent,o=e.modelPosition.nodeBefore;if(!n.is("element","tableCell"))return;if(!o||!o.is("element","paragraph"))return;const i=e.mapper.toViewElement(o),r=e.mapper.toViewElement(n);i===r&&(e.viewPosition=e.mapper.findPositionIn(r,o.maxOffset))})),t.config.define("table.defaultHeadings.rows",0),t.config.define("table.defaultHeadings.columns",0),t.commands.add("insertTable",new vC(t)),t.commands.add("insertTableRowAbove",new yC(t,{order:"above"})),t.commands.add("insertTableRowBelow",new yC(t,{order:"below"})),t.commands.add("insertTableColumnLeft",new xC(t,{order:"left"})),t.commands.add("insertTableColumnRight",new xC(t,{order:"right"})),t.commands.add("removeTableRow",new LC(t)),t.commands.add("removeTableColumn",new HC(t)),t.commands.add("splitTableCellVertically",new EC(t,{direction:"vertically"})),t.commands.add("splitTableCellHorizontally",new EC(t,{direction:"horizontally"})),t.commands.add("mergeTableCells",new ZC(t)),t.commands.add("mergeTableCellRight",new NC(t,{direction:"right"})),t.commands.add("mergeTableCellLeft",new NC(t,{direction:"left"})),t.commands.add("mergeTableCellDown",new NC(t,{direction:"down"})),t.commands.add("mergeTableCellUp",new NC(t,{direction:"up"})),t.commands.add("setTableColumnHeader",new WC(t)),t.commands.add("setTableRowHeader",new qC(t)),t.commands.add("selectTableRow",new XC(t)),t.commands.add("selectTableColumn",new tv(t)),ev(e),rv(e),this.listenTo(e.document,"change:data",(()=>{!function(t,e){const n=t.document.differ;for(const t of n.getChanges()){let n,o=!1;if("attribute"==t.type){const e=t.range.start.nodeAfter;if(!e||!e.is("element","table"))continue;if("headingRows"!=t.attributeKey&&"headingColumns"!=t.attributeKey)continue;n=e,o="headingRows"==t.attributeKey}else"tableRow"!=t.name&&"tableCell"!=t.name||(n=t.position.findAncestor("table"),o="tableRow"==t.name);if(!n)continue;const i=n.getAttribute("headingRows")||0,r=n.getAttribute("headingColumns")||0,s=new bC(n);for(const t of s){const n=t.row<i||t.column<r?"th":"td",s=e.mapper.toViewElement(t.cell);s&&s.is("element")&&s.name!=n&&e.reconvertItem(o?t.cell.parent:t.cell)}}}(e,t.editing),function(t,e){const n=t.document.differ,o=new Set;for(const t of n.getChanges()){const e="attribute"==t.type?t.range.start.parent:t.position.parent;e.is("element","tableCell")&&o.add(e)}for(const t of o.values()){const n=Array.from(t.getChildren()).filter((t=>dv(t,e.mapper)));for(const t of n)e.reconvertItem(t)}}(e,t.editing)}))}}function mv(t){return e=>{const n=parseInt(e.getAttribute(t));return Number.isNaN(n)||n<=0?null:n}}var pv=n(1613),fv={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(pv.Z,fv);pv.Z.locals;class bv extends _u{constructor(t){super(t);const e=this.bindTemplate;this.items=this._createGridCollection(),this.keystrokes=new xi,this.focusTracker=new yi,this.set("rows",0),this.set("columns",0),this.bind("label").to(this,"columns",this,"rows",((t,e)=>`${e} × ${t}`)),this.setTemplate({tag:"div",attributes:{class:["ck"]},children:[{tag:"div",attributes:{class:["ck-insert-table-dropdown__grid"]},on:{"mouseover@.ck-insert-table-dropdown-grid-box":e.to("boxover")},children:this.items},{tag:"div",attributes:{class:["ck","ck-insert-table-dropdown__label"],"aria-hidden":!0},children:[{text:e.to("label")}]}],on:{mousedown:e.to((t=>{t.preventDefault()})),click:e.to((()=>{this.fire("execute")}))}}),this.on("boxover",((t,e)=>{const{row:n,column:o}=e.target.dataset;this.items.get(10*(parseInt(n,10)-1)+(parseInt(o,10)-1)).focus()})),this.focusTracker.on("change:focusedElement",((t,e,n)=>{if(!n)return;const{row:o,column:i}=n.dataset;this.set({rows:parseInt(o),columns:parseInt(i)})})),this.on("change:columns",(()=>this._highlightGridBoxes())),this.on("change:rows",(()=>this._highlightGridBoxes()))}render(){super.render(),ju({keystrokeHandler:this.keystrokes,focusTracker:this.focusTracker,gridItems:this.items,numberOfColumns:10,uiLanguageDirection:this.locale&&this.locale.uiLanguageDirection});for(const t of this.items)this.focusTracker.add(t.element);this.keystrokes.listenTo(this.element)}focus(){this.items.get(0).focus()}focusLast(){this.items.get(0).focus()}_highlightGridBoxes(){const t=this.rows,e=this.columns;this.items.map(((n,o)=>{const i=Math.floor(o/10)<t&&o%10<e;n.set("isOn",i)}))}_createGridButton(t,e,n,o){const i=new Yu(t);return i.set({label:o,class:"ck-insert-table-dropdown-grid-box"}),i.extendTemplate({attributes:{"data-row":e,"data-column":n}}),i}_createGridCollection(){const t=[];for(let e=0;e<100;e++){const n=Math.floor(e/10),o=e%10,i=`${n+1} × ${o+1}`;t.push(this._createGridButton(this.locale,n+1,o+1,i))}return this.createCollection(t)}}class kv extends Ii{static get pluginName(){return"TableUI"}init(){const t=this.editor,e=this.editor.t,n="ltr"===t.locale.contentLanguageDirection;t.ui.componentFactory.add("insertTable",(n=>{const o=t.commands.get("insertTable"),i=Mg(n);let r;return i.bind("isEnabled").to(o),i.buttonView.set({icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M3 6v3h4V6H3zm0 4v3h4v-3H3zm0 4v3h4v-3H3zm5 3h4v-3H8v3zm5 0h4v-3h-4v3zm4-4v-3h-4v3h4zm0-4V6h-4v3h4zm1.5 8a1.5 1.5 0 0 1-1.5 1.5H3A1.5 1.5 0 0 1 1.5 17V4c.222-.863 1.068-1.5 2-1.5h13c.932 0 1.778.637 2 1.5v13zM12 13v-3H8v3h4zm0-4V6H8v3h4z"/></svg>',label:e("Insert table"),tooltip:!0}),i.on("change:isOpen",(()=>{r||(r=new bv(n),i.panelView.children.add(r),r.delegate("execute").to(i),i.on("execute",(()=>{t.execute("insertTable",{rows:r.rows,columns:r.columns}),t.editing.view.focus()})))})),i})),t.ui.componentFactory.add("tableColumn",(t=>{const o=[{type:"switchbutton",model:{commandName:"setTableColumnHeader",label:e("Header column"),bindIsOn:!0}},{type:"separator"},{type:"button",model:{commandName:n?"insertTableColumnLeft":"insertTableColumnRight",label:e("Insert column left")}},{type:"button",model:{commandName:n?"insertTableColumnRight":"insertTableColumnLeft",label:e("Insert column right")}},{type:"button",model:{commandName:"removeTableColumn",label:e("Delete column")}},{type:"button",model:{commandName:"selectTableColumn",label:e("Select column")}}];return this._prepareDropdown(e("Column"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z" opacity=".6"/><path d="M18 7v1H2V7h16zm0 5v1H2v-1h16z" opacity=".6"/><path d="M14 1v18a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V1a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1zm-2 1H8v4h4V2zm0 6H8v4h4V8zm0 6H8v4h4v-4z"/></svg>',o,t)})),t.ui.componentFactory.add("tableRow",(t=>{const n=[{type:"switchbutton",model:{commandName:"setTableRowHeader",label:e("Header row"),bindIsOn:!0}},{type:"separator"},{type:"button",model:{commandName:"insertTableRowAbove",label:e("Insert row above")}},{type:"button",model:{commandName:"insertTableRowBelow",label:e("Insert row below")}},{type:"button",model:{commandName:"removeTableRow",label:e("Delete row")}},{type:"button",model:{commandName:"selectTableRow",label:e("Select row")}}];return this._prepareDropdown(e("Row"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z" opacity=".6"/><path d="M7 2h1v16H7V2zm5 0h1v16h-1V2z" opacity=".6"/><path d="M1 6h18a1 1 0 0 1 1 1v6a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1zm1 2v4h4V8H2zm6 0v4h4V8H8zm6 0v4h4V8h-4z"/></svg>',n,t)})),t.ui.componentFactory.add("mergeTableCells",(t=>{const o=[{type:"button",model:{commandName:"mergeTableCellUp",label:e("Merge cell up")}},{type:"button",model:{commandName:n?"mergeTableCellRight":"mergeTableCellLeft",label:e("Merge cell right")}},{type:"button",model:{commandName:"mergeTableCellDown",label:e("Merge cell down")}},{type:"button",model:{commandName:n?"mergeTableCellLeft":"mergeTableCellRight",label:e("Merge cell left")}},{type:"separator"},{type:"button",model:{commandName:"splitTableCellVertically",label:e("Split cell vertically")}},{type:"button",model:{commandName:"splitTableCellHorizontally",label:e("Split cell horizontally")}}];return this._prepareMergeSplitButtonDropdown(e("Merge cells"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z" opacity=".6"/><path d="M7 2h1v16H7V2zm5 0h1v7h-1V2zm6 5v1H2V7h16zM8 12v1H2v-1h6z" opacity=".6"/><path d="M7 7h12a1 1 0 0 1 1 1v11a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V8a1 1 0 0 1 1-1zm1 2v9h10V9H8z"/></svg>',o,t)}))}_prepareDropdown(t,e,n,o){const i=this.editor,r=Mg(o),s=this._fillDropdownWithListOptions(r,n);return r.buttonView.set({label:t,icon:e,tooltip:!0}),r.bind("isEnabled").toMany(s,"isEnabled",((...t)=>t.some((t=>t)))),this.listenTo(r,"execute",(t=>{i.execute(t.source.commandName),t.source instanceof tg||i.editing.view.focus()})),r}_prepareMergeSplitButtonDropdown(t,e,n,o){const i=this.editor,r=Mg(o,ug),s="mergeTableCells",a=i.commands.get(s),l=this._fillDropdownWithListOptions(r,n);return r.buttonView.set({label:t,icon:e,tooltip:!0,isEnabled:!0}),r.bind("isEnabled").toMany([a,...l],"isEnabled",((...t)=>t.some((t=>t)))),this.listenTo(r.buttonView,"execute",(()=>{i.execute(s),i.editing.view.focus()})),this.listenTo(r,"execute",(t=>{i.execute(t.source.commandName),i.editing.view.focus()})),r}_fillDropdownWithListOptions(t,e){const n=this.editor,o=[],i=new Ci;for(const t of e)wv(t,n,o,i);return Hg(t,i,n.ui.componentFactory),o}}function wv(t,e,n,o){const i=t.model=new um(t.model),{commandName:r,bindIsOn:s}=t.model;if("button"===t.type||"switchbutton"===t.type){const t=e.commands.get(r);n.push(t),i.set({commandName:r}),i.bind("isEnabled").to(t),s&&i.bind("isOn").to(t,"value")}i.set({withText:!0}),o.add(t)}var _v=n(6945),Av={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(_v.Z,Av);_v.Z.locals;class Cv extends Ii{static get pluginName(){return"TableSelection"}static get requires(){return[jC,jC]}init(){const t=this.editor,e=t.model,n=t.editing.view;this.listenTo(e,"deleteContent",((t,e)=>this._handleDeleteContent(t,e)),{priority:"high"}),this.listenTo(n.document,"insertText",((t,e)=>this._handleInsertTextEvent(t,e)),{priority:"high"}),this._defineSelectionConverter(),this._enablePluginDisabling()}getSelectedTableCells(){const t=this.editor.plugins.get(jC),e=this.editor.model.document.selection,n=t.getSelectedTableCells(e);return 0==n.length?null:n}getSelectionAsFragment(){const t=this.editor.plugins.get(jC),e=this.getSelectedTableCells();return e?this.editor.model.change((n=>{const o=n.createDocumentFragment(),{first:i,last:r}=t.getColumnIndexes(e),{first:s,last:a}=t.getRowIndexes(e),l=e[0].findAncestor("table");let c=a,d=r;if(t.isSelectionRectangular(e)){const t={firstColumn:i,lastColumn:r,firstRow:s,lastRow:a};c=FC(l,t),d=OC(l,t)}const h=TC(l,{startRow:s,startColumn:i,endRow:c,endColumn:d},n);return n.insert(h,o,0),o})):null}setCellSelection(t,e){const n=this._getCellsToSelect(t,e);this.editor.model.change((t=>{t.setSelection(n.cells.map((e=>t.createRangeOn(e))),{backward:n.backward})}))}getFocusCell(){const t=[...this.editor.model.document.selection.getRanges()].pop().getContainedElement();return t&&t.is("element","tableCell")?t:null}getAnchorCell(){const t=vi(this.editor.model.document.selection.getRanges()).getContainedElement();return t&&t.is("element","tableCell")?t:null}_defineSelectionConverter(){const t=this.editor,e=new Set;t.conversion.for("editingDowncast").add((t=>t.on("selection",((t,n,o)=>{const i=o.writer;!function(t){for(const n of e)t.removeClass("ck-editor__editable_selected",n);e.clear()}(i);const r=this.getSelectedTableCells();if(!r)return;for(const t of r){const n=o.mapper.toViewElement(t);i.addClass("ck-editor__editable_selected",n),e.add(n)}const s=o.mapper.toViewElement(r[r.length-1]);i.setSelection(s,0)}),{priority:"lowest"})))}_enablePluginDisabling(){const t=this.editor;this.on("change:isEnabled",(()=>{if(!this.isEnabled){const e=this.getSelectedTableCells();if(!e)return;t.model.change((n=>{const o=n.createPositionAt(e[0],0),i=t.model.schema.getNearestSelectionRange(o);n.setSelection(i)}))}}))}_handleDeleteContent(t,e){const n=this.editor.plugins.get(jC),[o,i]=e,r=this.editor.model,s=!i||"backward"==i.direction,a=n.getSelectedTableCells(o);a.length&&(t.stop(),r.change((t=>{const e=a[s?a.length-1:0];r.change((t=>{for(const e of a)r.deleteContent(t.createSelection(e,"in"))}));const n=r.schema.getNearestSelectionRange(t.createPositionAt(e,0));o.is("documentSelection")?t.setSelection(n):o.setTo(n)})))}_handleInsertTextEvent(t,e){const n=this.editor,o=n.model.document.selection,i=this.getSelectedTableCells(o);if(!i)return;const r=n.editing.view,s=n.editing.mapper,a=i.map((t=>r.createRangeOn(s.toViewElement(t))));e.selection=r.createSelection(a)}_getCellsToSelect(t,e){const n=this.editor.plugins.get("TableUtils"),o=n.getCellLocation(t),i=n.getCellLocation(e),r=Math.min(o.row,i.row),s=Math.max(o.row,i.row),a=Math.min(o.column,i.column),l=Math.max(o.column,i.column),c=new Array(s-r+1).fill(null).map((()=>[])),d={startRow:r,endRow:s,startColumn:a,endColumn:l};for(const{row:e,cell:n}of new bC(t.findAncestor("table"),d))c[e-r].push(n);const h=i.row<o.row,u=i.column<o.column;return h&&c.reverse(),u&&c.forEach((t=>t.reverse())),{cells:c.flat(),backward:h||u}}}class vv extends Ii{static get pluginName(){return"TableClipboard"}static get requires(){return[Cv,jC]}init(){const t=this.editor,e=t.editing.view.document;this.listenTo(e,"copy",((t,e)=>this._onCopyCut(t,e))),this.listenTo(e,"cut",((t,e)=>this._onCopyCut(t,e))),this.listenTo(t.model,"insertContent",((t,e)=>this._onInsertContent(t,...e)),{priority:"high"}),this.decorate("_replaceTableSlotCell")}_onCopyCut(t,e){const n=this.editor.plugins.get(Cv);if(!n.getSelectedTableCells())return;if("cut"==t.name&&this.editor.isReadOnly)return;e.preventDefault(),t.stop();const o=this.editor.data,i=this.editor.editing.view.document,r=o.toView(n.getSelectionAsFragment());i.fire("clipboardOutput",{dataTransfer:e.dataTransfer,content:r,method:t.name})}_onInsertContent(t,e,n){if(n&&!n.is("documentSelection"))return;const o=this.editor.model,i=this.editor.plugins.get(jC);let r=yv(e,o);if(!r)return;const s=i.getSelectionAffectedTableCells(o.document.selection);s.length?(t.stop(),o.change((t=>{const e={width:i.getColumns(r),height:i.getRows(r)},n=function(t,e,n,o){const i=t[0].findAncestor("table"),r=o.getColumnIndexes(t),s=o.getRowIndexes(t),a={firstColumn:r.first,lastColumn:r.last,firstRow:s.first,lastRow:s.last},l=1===t.length;l&&(a.lastRow+=e.height-1,a.lastColumn+=e.width-1,function(t,e,n,o){const i=o.getColumns(t),r=o.getRows(t);n>i&&o.insertColumns(t,{at:i,columns:n-i});e>r&&o.insertRows(t,{at:r,rows:e-r})}(i,a.lastRow+1,a.lastColumn+1,o));l||!o.isSelectionRectangular(t)?function(t,e,n){const{firstRow:o,lastRow:i,firstColumn:r,lastColumn:s}=e,a={first:o,last:i},l={first:r,last:s};Ev(t,r,a,n),Ev(t,s+1,a,n),xv(t,o,l,n),xv(t,i+1,l,n,o)}(i,a,n):(a.lastRow=FC(i,a),a.lastColumn=OC(i,a));return a}(s,e,t,i),o=n.lastRow-n.firstRow+1,a=n.lastColumn-n.firstColumn+1,l={startRow:0,startColumn:0,endRow:Math.min(o,e.height)-1,endColumn:Math.min(a,e.width)-1};r=TC(r,l,t);const c=s[0].findAncestor("table"),d=this._replaceSelectedCellsWithPasted(r,e,c,n,t);if(this.editor.plugins.get("TableSelection").isEnabled){const e=i.sortRanges(d.map((e=>t.createRangeOn(e))));t.setSelection(e)}else t.setSelection(d[0],0)}))):VC(r,i)}_replaceSelectedCellsWithPasted(t,e,n,o,i){const{width:r,height:s}=e,a=function(t,e,n){const o=new Array(n).fill(null).map((()=>new Array(e).fill(null)));for(const{column:e,row:n,cell:i}of new bC(t))o[n][e]=i;return o}(t,r,s),l=[...new bC(n,{startRow:o.firstRow,endRow:o.lastRow,startColumn:o.firstColumn,endColumn:o.lastColumn,includeAllSlots:!0})],c=[];let d;for(const t of l){const{row:e,column:n}=t;n===o.firstColumn&&(d=t.getPositionBefore());const l=e-o.firstRow,h=n-o.firstColumn,u=a[l%s][h%r],g=u?i.cloneElement(u):null,m=this._replaceTableSlotCell(t,g,d,i);m&&(PC(m,e,n,o.lastRow,o.lastColumn,i),c.push(m),d=i.createPositionAfter(m))}const h=parseInt(n.getAttribute("headingRows")||0),u=parseInt(n.getAttribute("headingColumns")||0),g=o.firstRow<h&&h<=o.lastRow,m=o.firstColumn<u&&u<=o.lastColumn;if(g){const t=xv(n,h,{first:o.firstColumn,last:o.lastColumn},i,o.firstRow);c.push(...t)}if(m){const t=Ev(n,u,{first:o.firstRow,last:o.lastRow},i);c.push(...t)}return c}_replaceTableSlotCell(t,e,n,o){const{cell:i,isAnchor:r}=t;return r&&o.remove(i),e?(o.insert(e,n),e):null}getTableIfOnlyTableInContent(t,e){return yv(t,e)}}function yv(t,e){if(!t.is("documentFragment")&&!t.is("element"))return null;if(t.is("element","table"))return t;if(1==t.childCount&&t.getChild(0).is("element","table"))return t.getChild(0);const n=e.createRangeIn(t);for(const t of n.getItems())if(t.is("element","table")){const o=e.createRange(n.start,e.createPositionBefore(t));if(e.hasContent(o,{ignoreWhitespaces:!0}))return null;const i=e.createRange(e.createPositionAfter(t),n.end);return e.hasContent(i,{ignoreWhitespaces:!0})?null:t}return null}function xv(t,e,n,o,i=0){if(e<1)return;return DC(t,e,i).filter((({column:t,cellWidth:e})=>Tv(t,e,n))).map((({cell:t})=>SC(t,e,o)))}function Ev(t,e,n,o){if(e<1)return;return BC(t,e).filter((({row:t,cellHeight:e})=>Tv(t,e,n))).map((({cell:t,column:n})=>IC(t,n,e,o)))}function Tv(t,e,n){const o=t+e-1,{first:i,last:r}=n;return t>=i&&t<=r||t<i&&o>=i}class Dv extends Ii{static get pluginName(){return"TableKeyboard"}static get requires(){return[Cv,jC]}init(){const t=this.editor.editing.view.document;this.listenTo(t,"arrowKey",((...t)=>this._onArrowKey(...t)),{context:"table"}),this.listenTo(t,"tab",((...t)=>this._handleTabOnSelectedTable(...t)),{context:"figure"}),this.listenTo(t,"tab",((...t)=>this._handleTab(...t)),{context:["th","td"]})}_handleTabOnSelectedTable(t,e){const n=this.editor,o=n.model.document.selection.getSelectedElement();o&&o.is("element","table")&&(e.preventDefault(),e.stopPropagation(),t.stop(),n.model.change((t=>{t.setSelection(t.createRangeIn(o.getChild(0).getChild(0)))})))}_handleTab(t,e){const n=this.editor,o=this.editor.plugins.get(jC),i=n.model.document.selection,r=!e.shiftKey;let s=o.getTableCellsContainingSelection(i)[0];if(s||(s=this.editor.plugins.get("TableSelection").getFocusCell()),!s)return;e.preventDefault(),e.stopPropagation(),t.stop();const a=s.parent,l=a.parent,c=l.getChildIndex(a),d=a.getChildIndex(s),h=0===d;if(!r&&h&&0===c)return void n.model.change((t=>{t.setSelection(t.createRangeOn(l))}));const u=d===a.childCount-1,g=c===o.getRows(l)-1;if(r&&g&&u&&(n.execute("insertTableRowBelow"),c===o.getRows(l)-1))return void n.model.change((t=>{t.setSelection(t.createRangeOn(l))}));let m;if(r&&u){const t=l.getChild(c+1);m=t.getChild(0)}else if(!r&&h){const t=l.getChild(c-1);m=t.getChild(t.childCount-1)}else m=a.getChild(d+(r?1:-1));n.model.change((t=>{t.setSelection(t.createRangeIn(m))}))}_onArrowKey(t,e){const n=this.editor,o=fi(e.keyCode,n.locale.contentLanguageDirection);this._handleArrowKeys(o,e.shiftKey)&&(e.preventDefault(),e.stopPropagation(),t.stop())}_handleArrowKeys(t,e){const n=this.editor.plugins.get(jC),o=this.editor.model,i=o.document.selection,r=["right","down"].includes(t),s=n.getSelectedTableCells(i);if(s.length){let n;return n=e?this.editor.plugins.get("TableSelection").getFocusCell():r?s[s.length-1]:s[0],this._navigateFromCellInDirection(n,t,e),!0}const a=i.focus.findAncestor("tableCell");if(!a)return!1;if(!i.isCollapsed)if(e){if(i.isBackward==r&&!i.containsEntireContent(a))return!1}else{const t=i.getSelectedElement();if(!t||!o.schema.isObject(t))return!1}return!!this._isSelectionAtCellEdge(i,a,r)&&(this._navigateFromCellInDirection(a,t,e),!0)}_isSelectionAtCellEdge(t,e,n){const o=this.editor.model,i=this.editor.model.schema,r=n?t.getLastPosition():t.getFirstPosition();if(!i.getLimitElement(r).is("element","tableCell")){return o.createPositionAt(e,n?"end":0).isTouching(r)}const s=o.createSelection(r);return o.modifySelection(s,{direction:n?"forward":"backward"}),r.isEqual(s.focus)}_navigateFromCellInDirection(t,e,n=!1){const o=this.editor.model,i=t.findAncestor("table"),r=[...new bC(i,{includeAllSlots:!0})],{row:s,column:a}=r[r.length-1],l=r.find((({cell:e})=>e==t));let{row:c,column:d}=l;switch(e){case"left":d--;break;case"up":c--;break;case"right":d+=l.cellWidth;break;case"down":c+=l.cellHeight}if(c<0||c>s||d<0&&c<=0||d>a&&c>=s)return void o.change((t=>{t.setSelection(t.createRangeOn(i))}));d<0?(d=n?0:a,c--):d>a&&(d=n?a:0,c++);const h=r.find((t=>t.row==c&&t.column==d)).cell,u=["right","down"].includes(e),g=this.editor.plugins.get("TableSelection");if(n&&g.isEnabled){const e=g.getAnchorCell()||t;g.setCellSelection(e,h)}else{const t=o.createPositionAt(h,u?0:"end");o.change((e=>{e.setSelection(t)}))}}}class Sv extends fa{constructor(t){super(t),this.domEventType=["mousemove","mouseleave"]}onDomEvent(t){this.fire(t.type,t)}}class Bv extends Ii{static get pluginName(){return"TableMouse"}static get requires(){return[Cv,jC]}init(){this.editor.editing.view.addObserver(Sv),this._enableShiftClickSelection(),this._enableMouseDragSelection()}_enableShiftClickSelection(){const t=this.editor,e=t.plugins.get(jC);let n=!1;const o=t.plugins.get(Cv);this.listenTo(t.editing.view.document,"mousedown",((i,r)=>{const s=t.model.document.selection;if(!this.isEnabled||!o.isEnabled)return;if(!r.domEvent.shiftKey)return;const a=o.getAnchorCell()||e.getTableCellsContainingSelection(s)[0];if(!a)return;const l=this._getModelTableCellFromDomEvent(r);l&&Iv(a,l)&&(n=!0,o.setCellSelection(a,l),r.preventDefault())})),this.listenTo(t.editing.view.document,"mouseup",(()=>{n=!1})),this.listenTo(t.editing.view.document,"selectionChange",(t=>{n&&t.stop()}),{priority:"highest"})}_enableMouseDragSelection(){const t=this.editor;let e,n,o=!1,i=!1;const r=t.plugins.get(Cv);this.listenTo(t.editing.view.document,"mousedown",((t,n)=>{this.isEnabled&&r.isEnabled&&(n.domEvent.shiftKey||n.domEvent.ctrlKey||n.domEvent.altKey||(e=this._getModelTableCellFromDomEvent(n)))})),this.listenTo(t.editing.view.document,"mousemove",((t,s)=>{if(!s.domEvent.buttons)return;if(!e)return;const a=this._getModelTableCellFromDomEvent(s);a&&Iv(e,a)&&(n=a,o||n==e||(o=!0)),o&&(i=!0,r.setCellSelection(e,n),s.preventDefault())})),this.listenTo(t.editing.view.document,"mouseup",(()=>{o=!1,i=!1,e=null,n=null})),this.listenTo(t.editing.view.document,"selectionChange",(t=>{i&&t.stop()}),{priority:"highest"})}_getModelTableCellFromDomEvent(t){const e=t.target,n=this.editor.editing.view.createPositionAt(e,0);return this.editor.editing.mapper.toModelPosition(n).parent.findAncestor("tableCell",{includeSelf:!0})}}function Iv(t,e){return t.parent.parent==e.parent.parent}var Pv=n(6306),Rv={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Pv.Z,Rv);Pv.Z.locals;function zv(t){const e=t.getSelectedElement();return e&&Fv(e)?e:null}function Vv(t){const e=t.getFirstPosition();if(!e)return null;let n=e.parent;for(;n;){if(n.is("element")&&Fv(n))return n;n=n.parent}return null}function Fv(t){return!!t.getCustomProperty("table")&&db(t)}class Ov extends Ri{constructor(t,e,n){super(t),this.attributeName=e,this._defaultValue=n}refresh(){const t=this.editor.model.document.selection.getFirstPosition().findAncestor("table");this.isEnabled=!!t,this.value=this._getValue(t)}execute(t={}){const e=this.editor.model,n=e.document.selection,{value:o,batch:i}=t,r=n.getFirstPosition().findAncestor("table"),s=this._getValueToSet(o);e.enqueueChange(i,(t=>{s?t.setAttribute(this.attributeName,s,r):t.removeAttribute(this.attributeName,r)}))}_getValue(t){if(!t)return;const e=t.getAttribute(this.attributeName);return e!==this._defaultValue?e:void 0}_getValueToSet(t){if(t!==this._defaultValue)return t}}class Nv extends Ov{constructor(t,e){super(t,"tableBackgroundColor",e)}}function Mv(t){if(!t||!V(t))return t;const{top:e,right:n,bottom:o,left:i}=t;return e==n&&n==o&&o==i?e:void 0}function Lv(t,e){const n=parseFloat(t);return Number.isNaN(n)||String(n)!==String(t)?t:`${n}${e}`}function Hv(t,e={}){const n=Object.assign({borderStyle:"none",borderWidth:"",borderColor:"",backgroundColor:"",width:"",height:""},t);return e.includeAlignmentProperty&&!n.alignment&&(n.alignment="center"),e.includePaddingProperty&&!n.padding&&(n.padding=""),e.includeVerticalAlignmentProperty&&!n.verticalAlignment&&(n.verticalAlignment="middle"),e.includeHorizontalAlignmentProperty&&!n.horizontalAlignment&&(n.horizontalAlignment=e.isRightToLeftContent?"right":"left"),n}class qv extends Ov{constructor(t,e){super(t,"tableBorderColor",e)}_getValue(t){if(!t)return;const e=Mv(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class Wv extends Ov{constructor(t,e){super(t,"tableBorderStyle",e)}_getValue(t){if(!t)return;const e=Mv(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class jv extends Ov{constructor(t,e){super(t,"tableBorderWidth",e)}_getValue(t){if(!t)return;const e=Mv(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}_getValueToSet(t){if((t=Lv(t,"px"))!==this._defaultValue)return t}}class Uv extends Ov{constructor(t,e){super(t,"tableWidth",e)}_getValueToSet(t){if((t=Lv(t,"px"))!==this._defaultValue)return t}}class $v extends Ov{constructor(t,e){super(t,"tableHeight",e)}_getValueToSet(t){return(t=Lv(t,"px"))===this._defaultValue?null:t}}class Gv extends Ov{constructor(t,e){super(t,"tableAlignment",e)}}const Kv=/^(left|center|right)$/,Zv=/^(left|none|right)$/;class Jv extends Ii{static get pluginName(){return"TablePropertiesEditing"}static get requires(){return[gv]}init(){const t=this.editor,e=t.model.schema,n=t.conversion;t.config.define("table.tableProperties.defaultProperties",{});const o=Hv(t.config.get("table.tableProperties.defaultProperties"),{includeAlignmentProperty:!0});t.data.addStyleProcessorRules(Rh),function(t,e,n){const o={width:"tableBorderWidth",color:"tableBorderColor",style:"tableBorderStyle"};t.extend("table",{allowAttributes:Object.values(o)}),sC(e,"table",o,n),lC(e,{modelAttribute:o.color,styleName:"border-color"}),lC(e,{modelAttribute:o.style,styleName:"border-style"}),lC(e,{modelAttribute:o.width,styleName:"border-width"})}(e,n,{color:o.borderColor,style:o.borderStyle,width:o.borderWidth}),t.commands.add("tableBorderColor",new qv(t,o.borderColor)),t.commands.add("tableBorderStyle",new Wv(t,o.borderStyle)),t.commands.add("tableBorderWidth",new jv(t,o.borderWidth)),function(t,e,n){t.extend("table",{allowAttributes:["tableAlignment"]}),e.for("downcast").attributeToAttribute({model:{name:"table",key:"tableAlignment"},view:t=>({key:"style",value:{float:"center"===t?"none":t}}),converterPriority:"high"}),e.for("upcast").attributeToAttribute({view:{name:/^(table|figure)$/,styles:{float:Zv}},model:{key:"tableAlignment",value:t=>{let e=t.getStyle("float");return"none"===e&&(e="center"),e===n?null:e}}}).attributeToAttribute({view:{attributes:{align:Kv}},model:{name:"table",key:"tableAlignment",value:t=>{const e=t.getAttribute("align");return e===n?null:e}}})}(e,n,o.alignment),t.commands.add("tableAlignment",new Gv(t,o.alignment)),Yv(e,n,{modelAttribute:"tableWidth",styleName:"width",defaultValue:o.width}),t.commands.add("tableWidth",new Uv(t,o.width)),Yv(e,n,{modelAttribute:"tableHeight",styleName:"height",defaultValue:o.height}),t.commands.add("tableHeight",new $v(t,o.height)),t.data.addStyleProcessorRules(Ph),function(t,e,n){const{modelAttribute:o}=n;t.extend("table",{allowAttributes:[o]}),rC(e,{viewElement:"table",...n}),lC(e,n)}(e,n,{modelAttribute:"tableBackgroundColor",styleName:"background-color",defaultValue:o.backgroundColor}),t.commands.add("tableBackgroundColor",new Nv(t,o.backgroundColor))}}function Yv(t,e,n){const{modelAttribute:o}=n;t.extend("table",{allowAttributes:[o]}),rC(e,{viewElement:/^(table|figure)$/,shouldUpcast:t=>!("table"==t.name&&"figure"==t.parent.name),...n}),aC(e,{modelElement:"table",...n})}var Qv=n(7368),Xv={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Qv.Z,Xv);Qv.Z.locals;class ty extends _u{constructor(t,e){super(t),this.set("value",""),this.set("isReadOnly",!1),this.set("isFocused",!1),this.set("isEmpty",!0),this.options=e,this.focusTracker=new yi,this._focusables=new Jh,this.dropdownView=this._createDropdownView(),this.inputView=this._createInputTextView(),this.keystrokes=new xi,this._stillTyping=!1,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-input-color"]},children:[this.dropdownView,this.inputView]}),this.on("change:value",((t,e,n)=>this._setInputValue(n)))}render(){super.render(),this.keystrokes.listenTo(this.dropdownView.panelView.element)}focus(){this.inputView.focus()}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}_createDropdownView(){const t=this.locale,e=t.t,n=this.bindTemplate,o=this._createColorGrid(t),i=Mg(t),r=new _u,s=this._createRemoveColorButton();return r.setTemplate({tag:"span",attributes:{class:["ck","ck-input-color__button__preview"],style:{backgroundColor:n.to("value")}},children:[{tag:"span",attributes:{class:["ck","ck-input-color__button__preview__no-color-indicator",n.if("value","ck-hidden",(t=>""!=t))]}}]}),i.buttonView.extendTemplate({attributes:{class:"ck-input-color__button"}}),i.buttonView.children.add(r),i.buttonView.label=e("Color picker"),i.buttonView.tooltip=!0,i.panelPosition="rtl"===t.uiLanguageDirection?"se":"sw",i.panelView.children.add(s),i.panelView.children.add(o),i.bind("isEnabled").to(this,"isReadOnly",(t=>!t)),this._focusables.add(s),this._focusables.add(o),this.focusTracker.add(s.element),this.focusTracker.add(o.element),i}_createInputTextView(){const t=this.locale,e=new om(t);return e.extendTemplate({on:{blur:e.bindTemplate.to("blur")}}),e.value=this.value,e.bind("isReadOnly","hasError").to(this),this.bind("isFocused","isEmpty").to(e),e.on("input",(()=>{const t=e.element.value,n=this.options.colorDefinitions.find((e=>t===e.label));this._stillTyping=!0,this.value=n&&n.color||t})),e.on("blur",(()=>{this._stillTyping=!1,this._setInputValue(e.element.value)})),e.delegate("input").to(this),e}_createRemoveColorButton(){const t=this.locale,e=t.t,n=new Yu(t),o=this.options.defaultColorValue||"",i=e(o?"Restore default":"Remove color");return n.class="ck-input-color__remove-color",n.withText=!0,n.icon=Lu.eraser,n.label=i,n.on("execute",(()=>{this.value=o,this.dropdownView.isOpen=!1,this.fire("input")})),n}_createColorGrid(t){const e=new ag(t,{colorDefinitions:this.options.colorDefinitions,columns:this.options.columns});return e.on("execute",((t,e)=>{this.value=e.value,this.dropdownView.isOpen=!1,this.fire("input")})),e.bind("selectedColor").to(this,"value"),e}_setInputValue(t){if(!this._stillTyping){const e=ey(t),n=this.options.colorDefinitions.find((t=>e===ey(t.color)));this.inputView.value=n?n.label:t||""}}}function ey(t){return t.replace(/([(,])\s+/g,"$1").replace(/^\s+|\s+(?=[),\s]|$)/g,"").replace(/,|\s/g," ")}const ny=t=>""===t;function oy(t){return{none:t("None"),solid:t("Solid"),dotted:t("Dotted"),dashed:t("Dashed"),double:t("Double"),groove:t("Groove"),ridge:t("Ridge"),inset:t("Inset"),outset:t("Outset")}}function iy(t){return t('The color is invalid. Try "#FF0000" or "rgb(255,0,0)" or "red".')}function ry(t){return t('The value is invalid. Try "10px" or "2em" or simply "2".')}function sy(t){return t=t.trim(),ny(t)||uh(t)}function ay(t){return t=t.trim(),ny(t)||gy(t)||fh(t)||kh(t)}function ly(t){return t=t.trim(),ny(t)||gy(t)||fh(t)}function cy(t,e){const n=new Ci,o=oy(t.t);for(const i in o){const r={type:"button",model:new um({_borderStyleValue:i,label:o[i],withText:!0})};"none"===i?r.model.bind("isOn").to(t,"borderStyle",(t=>"none"===e?!t:t===i)):r.model.bind("isOn").to(t,"borderStyle",(t=>t===i)),n.add(r)}return n}function dy(t){const{view:e,icons:n,toolbar:o,labels:i,propertyName:r,nameToValue:s,defaultValue:a}=t;for(const t in i){const l=new Yu(e.locale);l.set({label:i[t],icon:n[t],tooltip:i[t]});const c=s?s(t):t;l.bind("isOn").to(e,r,(t=>{let e=t;return""===t&&a&&(e=a),c===e})),l.on("execute",(()=>{e[r]=c})),o.items.add(l)}}const hy=[{color:"hsl(0, 0%, 0%)",label:"Black"},{color:"hsl(0, 0%, 30%)",label:"Dim grey"},{color:"hsl(0, 0%, 60%)",label:"Grey"},{color:"hsl(0, 0%, 90%)",label:"Light grey"},{color:"hsl(0, 0%, 100%)",label:"White",hasBorder:!0},{color:"hsl(0, 75%, 60%)",label:"Red"},{color:"hsl(30, 75%, 60%)",label:"Orange"},{color:"hsl(60, 75%, 60%)",label:"Yellow"},{color:"hsl(90, 75%, 60%)",label:"Light green"},{color:"hsl(120, 75%, 60%)",label:"Green"},{color:"hsl(150, 75%, 60%)",label:"Aquamarine"},{color:"hsl(180, 75%, 60%)",label:"Turquoise"},{color:"hsl(210, 75%, 60%)",label:"Light blue"},{color:"hsl(240, 75%, 60%)",label:"Blue"},{color:"hsl(270, 75%, 60%)",label:"Purple"}];function uy(t){return(e,n,o)=>{const i=new ty(e.locale,{colorDefinitions:(r=t.colorConfig,r.map((t=>({color:t.model,label:t.label,options:{hasBorder:t.hasBorder}})))),columns:t.columns,defaultColorValue:t.defaultColorValue});var r;return i.inputView.set({id:n,ariaDescribedById:o}),i.bind("isReadOnly").to(e,"isEnabled",(t=>!t)),i.bind("hasError").to(e,"errorText",(t=>!!t)),i.on("input",(()=>{e.errorText=null})),e.bind("isEmpty","isFocused").to(i),i}}function gy(t){const e=parseFloat(t);return!Number.isNaN(e)&&t===String(e)}var my=n(9247),py={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(my.Z,py);my.Z.locals;class fy extends _u{constructor(t,e={}){super(t);const n=this.bindTemplate;this.set("class",e.class||null),this.children=this.createCollection(),e.children&&e.children.forEach((t=>this.children.add(t))),this.set("_role",null),this.set("_ariaLabelledBy",null),e.labelView&&this.set({_role:"group",_ariaLabelledBy:e.labelView.id}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-form__row",n.to("class")],role:n.to("_role"),"aria-labelledby":n.to("_ariaLabelledBy")},children:this.children})}}var by=n(4070),ky={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(by.Z,ky);by.Z.locals;var wy=n(6237),_y={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(wy.Z,_y);wy.Z.locals;var Ay=n(7341),Cy={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Ay.Z,Cy);Ay.Z.locals;const vy={left:Lu.objectLeft,center:Lu.objectCenter,right:Lu.objectRight};class yy extends _u{constructor(t,e){super(t),this.set({borderStyle:"",borderWidth:"",borderColor:"",backgroundColor:"",width:"",height:"",alignment:""}),this.options=e;const{borderStyleDropdown:n,borderWidthInput:o,borderColorInput:i,borderRowLabel:r}=this._createBorderFields(),{backgroundRowLabel:s,backgroundInput:a}=this._createBackgroundFields(),{widthInput:l,operatorLabel:c,heightInput:d,dimensionsLabel:h}=this._createDimensionFields(),{alignmentToolbar:u,alignmentLabel:g}=this._createAlignmentFields();this.focusTracker=new yi,this.keystrokes=new xi,this.children=this.createCollection(),this.borderStyleDropdown=n,this.borderWidthInput=o,this.borderColorInput=i,this.backgroundInput=a,this.widthInput=l,this.heightInput=d,this.alignmentToolbar=u;const{saveButtonView:m,cancelButtonView:p}=this._createActionButtons();this.saveButtonView=m,this.cancelButtonView=p,this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.children.add(new Xg(t,{label:this.t("Table properties")})),this.children.add(new fy(t,{labelView:r,children:[r,n,i,o],class:"ck-table-form__border-row"})),this.children.add(new fy(t,{labelView:s,children:[s,a],class:"ck-table-form__background-row"})),this.children.add(new fy(t,{children:[new fy(t,{labelView:h,children:[h,l,c,d],class:"ck-table-form__dimensions-row"}),new fy(t,{labelView:g,children:[g,u],class:"ck-table-properties-form__alignment-row"})]})),this.children.add(new fy(t,{children:[this.saveButtonView,this.cancelButtonView],class:"ck-table-form__action-row"})),this.setTemplate({tag:"form",attributes:{class:["ck","ck-form","ck-table-form","ck-table-properties-form"],tabindex:"-1"},children:this.children})}render(){super.render(),Wu({view:this}),[this.borderStyleDropdown,this.borderColorInput,this.borderColorInput.fieldView.dropdownView.buttonView,this.borderWidthInput,this.backgroundInput,this.backgroundInput.fieldView.dropdownView.buttonView,this.widthInput,this.heightInput,this.alignmentToolbar,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createBorderFields(){const t=this.options.defaultTableProperties,e={style:t.borderStyle,width:t.borderWidth,color:t.borderColor},n=uy({colorConfig:this.options.borderColors,columns:5,defaultColorValue:e.color}),o=this.locale,i=this.t,r=new Kg(o);r.text=i("Border");const s=oy(this.t),a=new am(o,dm);a.set({label:i("Style"),class:"ck-table-form__border-style"}),a.fieldView.buttonView.set({isOn:!1,withText:!0,tooltip:i("Style")}),a.fieldView.buttonView.bind("label").to(this,"borderStyle",(t=>s[t||"none"])),a.fieldView.on("execute",(t=>{this.borderStyle=t.source._borderStyleValue})),a.bind("isEmpty").to(this,"borderStyle",(t=>!t)),Hg(a.fieldView,cy(this,e.style));const l=new am(o,lm);l.set({label:i("Width"),class:"ck-table-form__border-width"}),l.fieldView.bind("value").to(this,"borderWidth"),l.bind("isEnabled").to(this,"borderStyle",xy),l.fieldView.on("input",(()=>{this.borderWidth=l.fieldView.element.value}));const c=new am(o,n);return c.set({label:i("Color"),class:"ck-table-form__border-color"}),c.fieldView.bind("value").to(this,"borderColor"),c.bind("isEnabled").to(this,"borderStyle",xy),c.fieldView.on("input",(()=>{this.borderColor=c.fieldView.value})),this.on("change:borderStyle",((t,n,o,i)=>{xy(o)||(this.borderColor="",this.borderWidth=""),xy(i)||(this.borderColor=e.color,this.borderWidth=e.width)})),{borderRowLabel:r,borderStyleDropdown:a,borderColorInput:c,borderWidthInput:l}}_createBackgroundFields(){const t=this.locale,e=this.t,n=new Kg(t);n.text=e("Background");const o=uy({colorConfig:this.options.backgroundColors,columns:5,defaultColorValue:this.options.defaultTableProperties.backgroundColor}),i=new am(t,o);return i.set({label:e("Color"),class:"ck-table-properties-form__background"}),i.fieldView.bind("value").to(this,"backgroundColor"),i.fieldView.on("input",(()=>{this.backgroundColor=i.fieldView.value})),{backgroundRowLabel:n,backgroundInput:i}}_createDimensionFields(){const t=this.locale,e=this.t,n=new Kg(t);n.text=e("Dimensions");const o=new am(t,lm);o.set({label:e("Width"),class:"ck-table-form__dimensions-row__width"}),o.fieldView.bind("value").to(this,"width"),o.fieldView.on("input",(()=>{this.width=o.fieldView.element.value}));const i=new _u(t);i.setTemplate({tag:"span",attributes:{class:["ck-table-form__dimension-operator"]},children:[{text:"×"}]});const r=new am(t,lm);return r.set({label:e("Height"),class:"ck-table-form__dimensions-row__height"}),r.fieldView.bind("value").to(this,"height"),r.fieldView.on("input",(()=>{this.height=r.fieldView.element.value})),{dimensionsLabel:n,widthInput:o,operatorLabel:i,heightInput:r}}_createAlignmentFields(){const t=this.locale,e=this.t,n=new Kg(t);n.text=e("Alignment");const o=new Eg(t);return o.set({isCompact:!0,ariaLabel:e("Table alignment toolbar")}),dy({view:this,icons:vy,toolbar:o,labels:this._alignmentLabels,propertyName:"alignment",defaultValue:this.options.defaultTableProperties.alignment}),{alignmentLabel:n,alignmentToolbar:o}}_createActionButtons(){const t=this.locale,e=this.t,n=new Yu(t),o=new Yu(t),i=[this.borderWidthInput,this.borderColorInput,this.backgroundInput,this.widthInput,this.heightInput];return n.set({label:e("Save"),icon:Lu.check,class:"ck-button-save",type:"submit",withText:!0}),n.bind("isEnabled").toMany(i,"errorText",((...t)=>t.every((t=>!t)))),o.set({label:e("Cancel"),icon:Lu.cancel,class:"ck-button-cancel",withText:!0}),o.delegate("execute").to(this,"cancel"),{saveButtonView:n,cancelButtonView:o}}get _alignmentLabels(){const t=this.locale,e=this.t,n=e("Align table to the left"),o=e("Center table"),i=e("Align table to the right");return"rtl"===t.uiLanguageDirection?{right:i,center:o,left:n}:{left:n,center:o,right:i}}}function xy(t){return"none"!==t}const Ey=xu.defaultPositions,Ty=[Ey.northArrowSouth,Ey.northArrowSouthWest,Ey.northArrowSouthEast,Ey.southArrowNorth,Ey.southArrowNorthWest,Ey.southArrowNorthEast,Ey.viewportStickyNorth];function Dy(t,e){const n=t.plugins.get("ContextualBalloon");if(Vv(t.editing.view.document.selection)){let o;o="cell"===e?By(t):Sy(t),n.updatePosition(o)}}function Sy(t){const e=t.model.document.selection.getFirstPosition().findAncestor("table"),n=t.editing.mapper.toViewElement(e);return{target:t.editing.view.domConverter.mapViewToDom(n),positions:Ty}}function By(t){const e=t.editing.mapper,n=t.editing.view.domConverter,o=t.model.document.selection;if(o.rangeCount>1)return{target:()=>function(t,e){const n=e.editing.mapper,o=e.editing.view.domConverter,i=Array.from(t).map((t=>{const e=Iy(t.start),i=n.toViewElement(e);return new No(o.mapViewToDom(i))}));return No.getBoundingRect(i)}(o.getRanges(),t),positions:Ty};const i=Iy(o.getFirstPosition()),r=e.toViewElement(i);return{target:n.mapViewToDom(r),positions:Ty}}function Iy(t){return t.nodeAfter&&t.nodeAfter.is("element","tableCell")?t.nodeAfter:t.findAncestor("tableCell")}const Py={borderStyle:"tableBorderStyle",borderColor:"tableBorderColor",borderWidth:"tableBorderWidth",backgroundColor:"tableBackgroundColor",width:"tableWidth",height:"tableHeight",alignment:"tableAlignment"};class Ry extends Ii{static get requires(){return[wm]}static get pluginName(){return"TablePropertiesUI"}constructor(t){super(t),t.config.define("table.tableProperties",{borderColors:hy,backgroundColors:hy})}init(){const t=this.editor,e=t.t;this._defaultTableProperties=Hv(t.config.get("table.tableProperties.defaultProperties"),{includeAlignmentProperty:!0}),this._balloon=t.plugins.get(wm),this.view=this._createPropertiesView(),this._undoStepBatch=null,t.ui.componentFactory.add("tableProperties",(n=>{const o=new Yu(n);o.set({label:e("Table properties"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M8 2v5h4V2h1v5h5v1h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5H7v-5H2v-1h5V8H2V7h5V2h1zm4 6H8v4h4V8z" opacity=".6"/><path d="m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM17 1a2 2 0 0 1 2 2v9.475l-.85-.124-.857-1.736a2.048 2.048 0 0 0-.292-.44L17 3H3v14h7.808l.402.392L10.935 19H3a2 2 0 0 1-2-2V3a2 2 0 0 1 2-2h14z"/></svg>',tooltip:!0}),this.listenTo(o,"execute",(()=>this._showView()));const i=Object.values(Py).map((e=>t.commands.get(e)));return o.bind("isEnabled").toMany(i,"isEnabled",((...t)=>t.some((t=>t)))),o}))}destroy(){super.destroy(),this.view.destroy()}_createPropertiesView(){const t=this.editor,e=t.config.get("table.tableProperties"),n=ng(e.borderColors),o=eg(t.locale,n),i=ng(e.backgroundColors),r=eg(t.locale,i),s=new yy(t.locale,{borderColors:o,backgroundColors:r,defaultTableProperties:this._defaultTableProperties}),a=t.t;s.render(),this.listenTo(s,"submit",(()=>{this._hideView()})),this.listenTo(s,"cancel",(()=>{this._undoStepBatch.operations.length&&t.execute("undo",this._undoStepBatch),this._hideView()})),s.keystrokes.set("Esc",((t,e)=>{this._hideView(),e()})),Hu({emitter:s,activator:()=>this._isViewInBalloon,contextElements:[this._balloon.view.element],callback:()=>this._hideView()});const l=iy(a),c=ry(a);return s.on("change:borderStyle",this._getPropertyChangeCallback("tableBorderStyle",this._defaultTableProperties.borderStyle)),s.on("change:borderColor",this._getValidatedPropertyChangeCallback({viewField:s.borderColorInput,commandName:"tableBorderColor",errorText:l,validator:sy,defaultValue:this._defaultTableProperties.borderColor})),s.on("change:borderWidth",this._getValidatedPropertyChangeCallback({viewField:s.borderWidthInput,commandName:"tableBorderWidth",errorText:c,validator:ly,defaultValue:this._defaultTableProperties.borderWidth})),s.on("change:backgroundColor",this._getValidatedPropertyChangeCallback({viewField:s.backgroundInput,commandName:"tableBackgroundColor",errorText:l,validator:sy,defaultValue:this._defaultTableProperties.backgroundColor})),s.on("change:width",this._getValidatedPropertyChangeCallback({viewField:s.widthInput,commandName:"tableWidth",errorText:c,validator:ay,defaultValue:this._defaultTableProperties.width})),s.on("change:height",this._getValidatedPropertyChangeCallback({viewField:s.heightInput,commandName:"tableHeight",errorText:c,validator:ay,defaultValue:this._defaultTableProperties.height})),s.on("change:alignment",this._getPropertyChangeCallback("tableAlignment",this._defaultTableProperties.alignment)),s}_fillViewFormFromCommandValues(){const t=this.editor.commands,e=t.get("tableBorderStyle");Object.entries(Py).map((([e,n])=>{const o=this._defaultTableProperties[e]||"";return[e,t.get(n).value||o]})).forEach((([t,n])=>{("borderColor"!==t&&"borderWidth"!==t||"none"!==e.value)&&this.view.set(t,n)}))}_showView(){const t=this.editor;this.listenTo(t.ui,"update",(()=>{this._updateView()})),this._fillViewFormFromCommandValues(),this._balloon.add({view:this.view,position:Sy(t)}),this._undoStepBatch=t.model.createBatch(),this.view.focus()}_hideView(){const t=this.editor;this.stopListening(t.ui,"update"),this.view.saveButtonView.focus(),this._balloon.remove(this.view),this.editor.editing.view.focus()}_updateView(){const t=this.editor;Vv(t.editing.view.document.selection)?this._isViewVisible&&Dy(t,"table"):this._hideView()}get _isViewVisible(){return this._balloon.visibleView===this.view}get _isViewInBalloon(){return this._balloon.hasView(this.view)}_getPropertyChangeCallback(t,e){return(n,o,i,r)=>{(r||e!==i)&&this.editor.execute(t,{value:i,batch:this._undoStepBatch})}}_getValidatedPropertyChangeCallback(t){const{commandName:e,viewField:n,validator:o,errorText:i,defaultValue:r}=t,s=Ba((()=>{n.errorText=i}),500);return(t,i,a,l)=>{s.cancel(),(l||r!==a)&&(o(a)?(this.editor.execute(e,{value:a,batch:this._undoStepBatch}),n.errorText=null):s())}}}var zy=n(5087),Vy={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(zy.Z,Vy);zy.Z.locals;const Fy={left:Lu.alignLeft,center:Lu.alignCenter,right:Lu.alignRight,justify:Lu.alignJustify,top:Lu.alignTop,middle:Lu.alignMiddle,bottom:Lu.alignBottom};class Oy extends _u{constructor(t,e){super(t),this.set({borderStyle:"",borderWidth:"",borderColor:"",padding:"",backgroundColor:"",width:"",height:"",horizontalAlignment:"",verticalAlignment:""}),this.options=e;const{borderStyleDropdown:n,borderWidthInput:o,borderColorInput:i,borderRowLabel:r}=this._createBorderFields(),{backgroundRowLabel:s,backgroundInput:a}=this._createBackgroundFields(),{widthInput:l,operatorLabel:c,heightInput:d,dimensionsLabel:h}=this._createDimensionFields(),{horizontalAlignmentToolbar:u,verticalAlignmentToolbar:g,alignmentLabel:m}=this._createAlignmentFields();this.focusTracker=new yi,this.keystrokes=new xi,this.children=this.createCollection(),this.borderStyleDropdown=n,this.borderWidthInput=o,this.borderColorInput=i,this.backgroundInput=a,this.paddingInput=this._createPaddingField(),this.widthInput=l,this.heightInput=d,this.horizontalAlignmentToolbar=u,this.verticalAlignmentToolbar=g;const{saveButtonView:p,cancelButtonView:f}=this._createActionButtons();this.saveButtonView=p,this.cancelButtonView=f,this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.children.add(new Xg(t,{label:this.t("Cell properties")})),this.children.add(new fy(t,{labelView:r,children:[r,n,i,o],class:"ck-table-form__border-row"})),this.children.add(new fy(t,{labelView:s,children:[s,a],class:"ck-table-form__background-row"})),this.children.add(new fy(t,{children:[new fy(t,{labelView:h,children:[h,l,c,d],class:"ck-table-form__dimensions-row"}),new fy(t,{children:[this.paddingInput],class:"ck-table-cell-properties-form__padding-row"})]})),this.children.add(new fy(t,{labelView:m,children:[m,u,g],class:"ck-table-cell-properties-form__alignment-row"})),this.children.add(new fy(t,{children:[this.saveButtonView,this.cancelButtonView],class:"ck-table-form__action-row"})),this.setTemplate({tag:"form",attributes:{class:["ck","ck-form","ck-table-form","ck-table-cell-properties-form"],tabindex:"-1"},children:this.children})}render(){super.render(),Wu({view:this}),[this.borderStyleDropdown,this.borderColorInput,this.borderColorInput.fieldView.dropdownView.buttonView,this.borderWidthInput,this.backgroundInput,this.backgroundInput.fieldView.dropdownView.buttonView,this.widthInput,this.heightInput,this.paddingInput,this.horizontalAlignmentToolbar,this.verticalAlignmentToolbar,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createBorderFields(){const t=this.options.defaultTableCellProperties,e={style:t.borderStyle,width:t.borderWidth,color:t.borderColor},n=uy({colorConfig:this.options.borderColors,columns:5,defaultColorValue:e.color}),o=this.locale,i=this.t,r=new Kg(o);r.text=i("Border");const s=oy(i),a=new am(o,dm);a.set({label:i("Style"),class:"ck-table-form__border-style"}),a.fieldView.buttonView.set({isOn:!1,withText:!0,tooltip:i("Style")}),a.fieldView.buttonView.bind("label").to(this,"borderStyle",(t=>s[t||"none"])),a.fieldView.on("execute",(t=>{this.borderStyle=t.source._borderStyleValue})),a.bind("isEmpty").to(this,"borderStyle",(t=>!t)),Hg(a.fieldView,cy(this,e.style));const l=new am(o,lm);l.set({label:i("Width"),class:"ck-table-form__border-width"}),l.fieldView.bind("value").to(this,"borderWidth"),l.bind("isEnabled").to(this,"borderStyle",Ny),l.fieldView.on("input",(()=>{this.borderWidth=l.fieldView.element.value}));const c=new am(o,n);return c.set({label:i("Color"),class:"ck-table-form__border-color"}),c.fieldView.bind("value").to(this,"borderColor"),c.bind("isEnabled").to(this,"borderStyle",Ny),c.fieldView.on("input",(()=>{this.borderColor=c.fieldView.value})),this.on("change:borderStyle",((t,n,o,i)=>{Ny(o)||(this.borderColor="",this.borderWidth=""),Ny(i)||(this.borderColor=e.color,this.borderWidth=e.width)})),{borderRowLabel:r,borderStyleDropdown:a,borderColorInput:c,borderWidthInput:l}}_createBackgroundFields(){const t=this.locale,e=this.t,n=new Kg(t);n.text=e("Background");const o=uy({colorConfig:this.options.backgroundColors,columns:5,defaultColorValue:this.options.defaultTableCellProperties.backgroundColor}),i=new am(t,o);return i.set({label:e("Color"),class:"ck-table-cell-properties-form__background"}),i.fieldView.bind("value").to(this,"backgroundColor"),i.fieldView.on("input",(()=>{this.backgroundColor=i.fieldView.value})),{backgroundRowLabel:n,backgroundInput:i}}_createDimensionFields(){const t=this.locale,e=this.t,n=new Kg(t);n.text=e("Dimensions");const o=new am(t,lm);o.set({label:e("Width"),class:"ck-table-form__dimensions-row__width"}),o.fieldView.bind("value").to(this,"width"),o.fieldView.on("input",(()=>{this.width=o.fieldView.element.value}));const i=new _u(t);i.setTemplate({tag:"span",attributes:{class:["ck-table-form__dimension-operator"]},children:[{text:"×"}]});const r=new am(t,lm);return r.set({label:e("Height"),class:"ck-table-form__dimensions-row__height"}),r.fieldView.bind("value").to(this,"height"),r.fieldView.on("input",(()=>{this.height=r.fieldView.element.value})),{dimensionsLabel:n,widthInput:o,operatorLabel:i,heightInput:r}}_createPaddingField(){const t=this.locale,e=this.t,n=new am(t,lm);return n.set({label:e("Padding"),class:"ck-table-cell-properties-form__padding"}),n.fieldView.bind("value").to(this,"padding"),n.fieldView.on("input",(()=>{this.padding=n.fieldView.element.value})),n}_createAlignmentFields(){const t=this.locale,e=this.t,n=new Kg(t);n.text=e("Table cell text alignment");const o=new Eg(t),i="rtl"===this.locale.contentLanguageDirection;o.set({isCompact:!0,ariaLabel:e("Horizontal text alignment toolbar")}),dy({view:this,icons:Fy,toolbar:o,labels:this._horizontalAlignmentLabels,propertyName:"horizontalAlignment",nameToValue:t=>{if(i){if("left"===t)return"right";if("right"===t)return"left"}return t},defaultValue:this.options.defaultTableCellProperties.horizontalAlignment});const r=new Eg(t);return r.set({isCompact:!0,ariaLabel:e("Vertical text alignment toolbar")}),dy({view:this,icons:Fy,toolbar:r,labels:this._verticalAlignmentLabels,propertyName:"verticalAlignment",defaultValue:this.options.defaultTableCellProperties.verticalAlignment}),{horizontalAlignmentToolbar:o,verticalAlignmentToolbar:r,alignmentLabel:n}}_createActionButtons(){const t=this.locale,e=this.t,n=new Yu(t),o=new Yu(t),i=[this.borderWidthInput,this.borderColorInput,this.backgroundInput,this.paddingInput];return n.set({label:e("Save"),icon:Lu.check,class:"ck-button-save",type:"submit",withText:!0}),n.bind("isEnabled").toMany(i,"errorText",((...t)=>t.every((t=>!t)))),o.set({label:e("Cancel"),icon:Lu.cancel,class:"ck-button-cancel",withText:!0}),o.delegate("execute").to(this,"cancel"),{saveButtonView:n,cancelButtonView:o}}get _horizontalAlignmentLabels(){const t=this.locale,e=this.t,n=e("Align cell text to the left"),o=e("Align cell text to the center"),i=e("Align cell text to the right"),r=e("Justify cell text");return"rtl"===t.uiLanguageDirection?{right:i,center:o,left:n,justify:r}:{left:n,center:o,right:i,justify:r}}get _verticalAlignmentLabels(){const t=this.t;return{top:t("Align cell text to the top"),middle:t("Align cell text to the middle"),bottom:t("Align cell text to the bottom")}}}function Ny(t){return"none"!==t}const My={borderStyle:"tableCellBorderStyle",borderColor:"tableCellBorderColor",borderWidth:"tableCellBorderWidth",height:"tableCellHeight",width:"tableCellWidth",padding:"tableCellPadding",backgroundColor:"tableCellBackgroundColor",horizontalAlignment:"tableCellHorizontalAlignment",verticalAlignment:"tableCellVerticalAlignment"};class Ly extends Ii{static get requires(){return[wm]}static get pluginName(){return"TableCellPropertiesUI"}constructor(t){super(t),t.config.define("table.tableCellProperties",{borderColors:hy,backgroundColors:hy})}init(){const t=this.editor,e=t.t;this._defaultTableCellProperties=Hv(t.config.get("table.tableCellProperties.defaultProperties"),{includeVerticalAlignmentProperty:!0,includeHorizontalAlignmentProperty:!0,includePaddingProperty:!0,isRightToLeftContent:"rtl"===t.locale.contentLanguageDirection}),this._balloon=t.plugins.get(wm),this.view=this._createPropertiesView(),this._undoStepBatch=null,t.ui.componentFactory.add("tableCellProperties",(n=>{const o=new Yu(n);o.set({label:e("Cell properties"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m11.105 18-.17 1H2.5A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1h15A1.5 1.5 0 0 1 19 2.5v9.975l-.85-.124-.15-.302V8h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5h3.105zM2 12h5V8H2v4zm10-4H8v4h4V8zM2 2v5h5V2H2zm0 16h5v-5H2v5zM13 7h5V2h-5v5zM8 2v5h4V2H8z" opacity=".6"/><path d="m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM13 6a1 1 0 0 1 1 1v3.172a2.047 2.047 0 0 0-.293.443l-.858 1.736-1.916.28-.151.027A1.976 1.976 0 0 0 9.315 14H7a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h6zm-1 2H8v4h4V8z"/></svg>',tooltip:!0}),this.listenTo(o,"execute",(()=>this._showView()));const i=Object.values(My).map((e=>t.commands.get(e)));return o.bind("isEnabled").toMany(i,"isEnabled",((...t)=>t.some((t=>t)))),o}))}destroy(){super.destroy(),this.view.destroy()}_createPropertiesView(){const t=this.editor,e=t.editing.view.document,n=t.config.get("table.tableCellProperties"),o=ng(n.borderColors),i=eg(t.locale,o),r=ng(n.backgroundColors),s=eg(t.locale,r),a=new Oy(t.locale,{borderColors:i,backgroundColors:s,defaultTableCellProperties:this._defaultTableCellProperties}),l=t.t;a.render(),this.listenTo(a,"submit",(()=>{this._hideView()})),this.listenTo(a,"cancel",(()=>{this._undoStepBatch.operations.length&&t.execute("undo",this._undoStepBatch),this._hideView()})),a.keystrokes.set("Esc",((t,e)=>{this._hideView(),e()})),this.listenTo(t.ui,"update",(()=>{Vv(e.selection)?this._isViewVisible&&Dy(t,"cell"):this._hideView()})),Hu({emitter:a,activator:()=>this._isViewInBalloon,contextElements:[this._balloon.view.element],callback:()=>this._hideView()});const c=iy(l),d=ry(l);return a.on("change:borderStyle",this._getPropertyChangeCallback("tableCellBorderStyle",this._defaultTableCellProperties.borderStyle)),a.on("change:borderColor",this._getValidatedPropertyChangeCallback({viewField:a.borderColorInput,commandName:"tableCellBorderColor",errorText:c,validator:sy,defaultValue:this._defaultTableCellProperties.borderColor})),a.on("change:borderWidth",this._getValidatedPropertyChangeCallback({viewField:a.borderWidthInput,commandName:"tableCellBorderWidth",errorText:d,validator:ly,defaultValue:this._defaultTableCellProperties.borderWidth})),a.on("change:padding",this._getValidatedPropertyChangeCallback({viewField:a.paddingInput,commandName:"tableCellPadding",errorText:d,validator:ay,defaultValue:this._defaultTableCellProperties.padding})),a.on("change:width",this._getValidatedPropertyChangeCallback({viewField:a.widthInput,commandName:"tableCellWidth",errorText:d,validator:ay,defaultValue:this._defaultTableCellProperties.width})),a.on("change:height",this._getValidatedPropertyChangeCallback({viewField:a.heightInput,commandName:"tableCellHeight",errorText:d,validator:ay,defaultValue:this._defaultTableCellProperties.height})),a.on("change:backgroundColor",this._getValidatedPropertyChangeCallback({viewField:a.backgroundInput,commandName:"tableCellBackgroundColor",errorText:c,validator:sy,defaultValue:this._defaultTableCellProperties.backgroundColor})),a.on("change:horizontalAlignment",this._getPropertyChangeCallback("tableCellHorizontalAlignment",this._defaultTableCellProperties.horizontalAlignment)),a.on("change:verticalAlignment",this._getPropertyChangeCallback("tableCellVerticalAlignment",this._defaultTableCellProperties.verticalAlignment)),a}_fillViewFormFromCommandValues(){const t=this.editor.commands,e=t.get("tableCellBorderStyle");Object.entries(My).map((([e,n])=>{const o=this._defaultTableCellProperties[e]||"";return[e,t.get(n).value||o]})).forEach((([t,n])=>{("borderColor"!==t&&"borderWidth"!==t||"none"!==e.value)&&this.view.set(t,n)}))}_showView(){const t=this.editor;this._fillViewFormFromCommandValues(),this._balloon.add({view:this.view,position:By(t)}),this._undoStepBatch=t.model.createBatch(),this.view.focus()}_hideView(){if(!this._isViewInBalloon)return;const t=this.editor;this.stopListening(t.ui,"update"),this.view.saveButtonView.focus(),this._balloon.remove(this.view),this.editor.editing.view.focus()}get _isViewVisible(){return this._balloon.visibleView===this.view}get _isViewInBalloon(){return this._balloon.hasView(this.view)}_getPropertyChangeCallback(t,e){return(n,o,i,r)=>{(r||e!==i)&&this.editor.execute(t,{value:i,batch:this._undoStepBatch})}}_getValidatedPropertyChangeCallback(t){const{commandName:e,viewField:n,validator:o,errorText:i,defaultValue:r}=t,s=Ba((()=>{n.errorText=i}),500);return(t,i,a,l)=>{s.cancel(),(l||r!==a)&&(o(a)?(this.editor.execute(e,{value:a,batch:this._undoStepBatch}),n.errorText=null):s())}}}class Hy extends Ri{constructor(t,e,n){super(t),this.attributeName=e,this._defaultValue=n}refresh(){const t=this.editor,e=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(t.model.document.selection);this.isEnabled=!!e.length,this.value=this._getSingleValue(e)}execute(t={}){const{value:e,batch:n}=t,o=this.editor.model,i=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(o.document.selection),r=this._getValueToSet(e);o.enqueueChange(n,(t=>{r?i.forEach((e=>t.setAttribute(this.attributeName,r,e))):i.forEach((e=>t.removeAttribute(this.attributeName,e)))}))}_getAttribute(t){if(!t)return;const e=t.getAttribute(this.attributeName);return e!==this._defaultValue?e:void 0}_getValueToSet(t){if(t!==this._defaultValue)return t}_getSingleValue(t){const e=this._getAttribute(t[0]);return t.every((t=>this._getAttribute(t)===e))?e:void 0}}class qy extends Hy{constructor(t,e){super(t,"tableCellWidth",e)}_getValueToSet(t){if((t=Lv(t,"px"))!==this._defaultValue)return t}}class Wy extends Ii{static get pluginName(){return"TableCellWidthEditing"}static get requires(){return[gv]}init(){const t=this.editor,e=Hv(t.config.get("table.tableCellProperties.defaultProperties"));gC(t.model.schema,t.conversion,{modelAttribute:"tableCellWidth",styleName:"width",defaultValue:e.width}),t.commands.add("tableCellWidth",new qy(t,e.width))}}class jy extends Hy{constructor(t,e){super(t,"tableCellPadding",e)}_getAttribute(t){if(!t)return;const e=Mv(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}_getValueToSet(t){if((t=Lv(t,"px"))!==this._defaultValue)return t}}class Uy extends Hy{constructor(t,e){super(t,"tableCellHeight",e)}_getValueToSet(t){return(t=Lv(t,"px"))===this._defaultValue?null:t}}class $y extends Hy{constructor(t,e){super(t,"tableCellBackgroundColor",e)}}class Gy extends Hy{constructor(t,e){super(t,"tableCellVerticalAlignment",e)}}class Ky extends Hy{constructor(t,e){super(t,"tableCellHorizontalAlignment",e)}}class Zy extends Hy{constructor(t,e){super(t,"tableCellBorderStyle",e)}_getAttribute(t){if(!t)return;const e=Mv(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class Jy extends Hy{constructor(t,e){super(t,"tableCellBorderColor",e)}_getAttribute(t){if(!t)return;const e=Mv(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class Yy extends Hy{constructor(t,e){super(t,"tableCellBorderWidth",e)}_getAttribute(t){if(!t)return;const e=Mv(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}_getValueToSet(t){if((t=Lv(t,"px"))!==this._defaultValue)return t}}const Qy=/^(top|middle|bottom)$/,Xy=/^(left|center|right|justify)$/;class tx extends Ii{static get pluginName(){return"TableCellPropertiesEditing"}static get requires(){return[gv,Wy]}init(){const t=this.editor,e=t.model.schema,n=t.conversion;t.config.define("table.tableCellProperties.defaultProperties",{});const o=Hv(t.config.get("table.tableCellProperties.defaultProperties"),{includeVerticalAlignmentProperty:!0,includeHorizontalAlignmentProperty:!0,includePaddingProperty:!0,isRightToLeftContent:"rtl"===t.locale.contentLanguageDirection});t.data.addStyleProcessorRules(Rh),function(t,e,n){const o={width:"tableCellBorderWidth",color:"tableCellBorderColor",style:"tableCellBorderStyle"};t.extend("tableCell",{allowAttributes:Object.values(o)}),sC(e,"td",o,n),sC(e,"th",o,n),aC(e,{modelElement:"tableCell",modelAttribute:o.style,styleName:"border-style"}),aC(e,{modelElement:"tableCell",modelAttribute:o.color,styleName:"border-color"}),aC(e,{modelElement:"tableCell",modelAttribute:o.width,styleName:"border-width"})}(e,n,{color:o.borderColor,style:o.borderStyle,width:o.borderWidth}),t.commands.add("tableCellBorderStyle",new Zy(t,o.borderStyle)),t.commands.add("tableCellBorderColor",new Jy(t,o.borderColor)),t.commands.add("tableCellBorderWidth",new Yy(t,o.borderWidth)),gC(e,n,{modelAttribute:"tableCellHeight",styleName:"height",defaultValue:o.height}),t.commands.add("tableCellHeight",new Uy(t,o.height)),t.data.addStyleProcessorRules(jh),gC(e,n,{modelAttribute:"tableCellPadding",styleName:"padding",reduceBoxSides:!0,defaultValue:o.padding}),t.commands.add("tableCellPadding",new jy(t,o.padding)),t.data.addStyleProcessorRules(Ph),gC(e,n,{modelAttribute:"tableCellBackgroundColor",styleName:"background-color",defaultValue:o.backgroundColor}),t.commands.add("tableCellBackgroundColor",new $y(t,o.backgroundColor)),function(t,e,n){t.extend("tableCell",{allowAttributes:["tableCellHorizontalAlignment"]}),e.for("downcast").attributeToAttribute({model:{name:"tableCell",key:"tableCellHorizontalAlignment"},view:t=>({key:"style",value:{"text-align":t}})}),e.for("upcast").attributeToAttribute({view:{name:/^(td|th)$/,styles:{"text-align":Xy}},model:{key:"tableCellHorizontalAlignment",value:t=>{const e=t.getStyle("text-align");return e===n?null:e}}}).attributeToAttribute({view:{name:/^(td|th)$/,attributes:{align:Xy}},model:{key:"tableCellHorizontalAlignment",value:t=>{const e=t.getAttribute("align");return e===n?null:e}}})}(e,n,o.horizontalAlignment),t.commands.add("tableCellHorizontalAlignment",new Ky(t,o.horizontalAlignment)),function(t,e,n){t.extend("tableCell",{allowAttributes:["tableCellVerticalAlignment"]}),e.for("downcast").attributeToAttribute({model:{name:"tableCell",key:"tableCellVerticalAlignment"},view:t=>({key:"style",value:{"vertical-align":t}})}),e.for("upcast").attributeToAttribute({view:{name:/^(td|th)$/,styles:{"vertical-align":Qy}},model:{key:"tableCellVerticalAlignment",value:t=>{const e=t.getStyle("vertical-align");return e===n?null:e}}}).attributeToAttribute({view:{name:/^(td|th)$/,attributes:{valign:Qy}},model:{key:"tableCellVerticalAlignment",value:t=>{const e=t.getAttribute("valign");return e===n?null:e}}})}(e,n,o.verticalAlignment),t.commands.add("tableCellVerticalAlignment",new Gy(t,o.verticalAlignment))}}function ex(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.differ.getChanges();let o=!1;for(const e of n){if("insert"!=e.type)continue;if(e.position.parent.is("element","table")||"table"==e.name){const n="table"==e.name?e.position.nodeAfter:e.position.parent,i=Array.from(n.getChildren()).filter((t=>t.is("element","caption"))),r=i.shift();if(!r)continue;for(const e of i)t.move(t.createRangeIn(e),r,"end"),t.remove(e);r.nextSibling&&(t.move(t.createRangeOn(r),n,"end"),o=!0),o=!!i.length||o}}return o}(e,t)))}function nx(t){return!!t&&t.is("element","table")}function ox(t){for(const e of t.getChildren())if(e.is("element","caption"))return e;return null}function ix(t){const e=t.parent;return"figcaption"==t.name&&e&&"figure"==e.name&&e.hasClass("table")||"caption"==t.name&&e&&"table"==e.name?{name:!0}:null}function rx(t){const e=t.getSelectedElement();return e&&e.is("element","table")?e:t.getFirstPosition().findAncestor("table")}class sx extends Ri{refresh(){const t=rx(this.editor.model.document.selection);this.isEnabled=!!t,this.isEnabled?this.value=!!ox(t):this.value=!1}execute(t={}){const{focusCaptionOnShow:e}=t;this.editor.model.change((t=>{this.value?this._hideTableCaption(t):this._showTableCaption(t,e)}))}_showTableCaption(t,e){const n=this.editor.model,o=rx(n.document.selection),i=this.editor.plugins.get("TableCaptionEditing")._getSavedCaption(o)||t.createElement("caption");n.insertContent(i,o,"end"),e&&t.setSelection(i,"in")}_hideTableCaption(t){const e=this.editor.model,n=rx(e.document.selection),o=this.editor.plugins.get("TableCaptionEditing"),i=ox(n);o._saveCaption(n,i),e.deleteContent(t.createSelection(i,"on"))}}class ax extends Ii{static get pluginName(){return"TableCaptionEditing"}constructor(t){super(t),this._savedCaptionsMap=new WeakMap}init(){const t=this.editor,e=t.model.schema,n=t.editing.view,o=t.t;e.isRegistered("caption")?e.extend("caption",{allowIn:"table"}):e.register("caption",{allowIn:"table",allowContentOf:"$block",isLimit:!0}),t.commands.add("toggleTableCaption",new sx(this.editor)),t.conversion.for("upcast").elementToElement({view:ix,model:"caption"}),t.conversion.for("dataDowncast").elementToElement({model:"caption",view:(t,{writer:e})=>nx(t.parent)?e.createContainerElement("figcaption"):null}),t.conversion.for("editingDowncast").elementToElement({model:"caption",view:(t,{writer:e})=>{if(!nx(t.parent))return null;const i=e.createEditableElement("figcaption");return e.setCustomProperty("tableCaption",!0,i),ji({view:n,element:i,text:o("Enter table caption"),keepOnFocus:!0}),pb(i,e)}}),ex(t.model)}_getSavedCaption(t){const e=this._savedCaptionsMap.get(t);return e?ml.fromJSON(e):null}_saveCaption(t,e){this._savedCaptionsMap.set(t,e.toJSON())}}class lx extends Ii{static get pluginName(){return"TableCaptionUI"}init(){const t=this.editor,e=t.editing.view,n=t.t;t.ui.componentFactory.add("toggleTableCaption",(o=>{const i=t.commands.get("toggleTableCaption"),r=new Yu(o);return r.set({icon:Lu.caption,tooltip:!0,isToggleable:!0}),r.bind("isOn","isEnabled").to(i,"value","isEnabled"),r.bind("label").to(i,"value",(t=>n(t?"Toggle caption off":"Toggle caption on"))),this.listenTo(r,"execute",(()=>{if(t.execute("toggleTableCaption",{focusCaptionOnShow:!0}),i.value){const n=function(t){const e=rx(t);return e?ox(e):null}(t.model.document.selection),o=t.editing.mapper.toViewElement(n);if(!o)return;e.scrollToTheSelection(),e.change((t=>{t.addClass("table__caption_highlighted",o)}))}t.editing.view.focus()})),r}))}}var cx=n(2128),dx={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(cx.Z,dx);cx.Z.locals;const hx={heading1:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M19 9v10h-2v-8h-2V9h4zM4 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H10a1 1 0 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t=this.editor.model,e=t.document;this.value=e.selection.getAttribute(this.attributeKey),this.isEnabled=t.schema.checkAttributeInSelection(e.selection,this.attributeKey)}execute(t={}){const e=this.editor.model,n=e.document.selection,o=t.value;e.change((t=>{if(n.isCollapsed)o?t.setSelectionAttribute(this.attributeKey,o):t.removeSelectionAttribute(this.attributeKey);else{const i=e.schema.getValidRanges(n.getRanges(),this.attributeKey);for(const e of i)o?t.setAttribute(this.attributeKey,o,e):t.removeAttribute(this.attributeKey,e)}}))}}class gx extends Ci{constructor(t){super(t),this.set("isEmpty",!0),this.on("change",(()=>{this.set("isEmpty",0===this.length)}))}add(t,e){this.find((e=>e.color===t.color))||super.add(t,e)}hasColor(t){return!!this.find((e=>e.color===t))}}d(gx,q);var mx=n(1896),px={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(mx.Z,px);mx.Z.locals;class fx extends _u{constructor(t,{colors:e,columns:n,removeButtonLabel:o,documentColorsLabel:i,documentColorsCount:r}){super(t),this.items=this.createCollection(),this.colorDefinitions=e,this.focusTracker=new yi,this.keystrokes=new xi,this.set("selectedColor"),this.removeButtonLabel=o,this.columns=n,this.documentColors=new gx,this.documentColorsCount=r,this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this._documentColorsLabel=i,this.setTemplate({tag:"div",attributes:{class:["ck","ck-color-table"]},children:this.items}),this.items.add(this._createRemoveColorButton())}updateDocumentColors(t,e){const n=t.document,o=this.documentColorsCount;this.documentColors.clear();for(const i of n.getRootNames()){const r=n.getRoot(i),s=t.createRangeIn(r);for(const t of s.getItems())if(t.is("$textProxy")&&t.hasAttribute(e)&&(this._addColorToDocumentColors(t.getAttribute(e)),this.documentColors.length>=o))return}}updateSelectedColors(){const t=this.documentColorsGrid,e=this.staticColorsGrid,n=this.selectedColor;e.selectedColor=n,t&&(t.selectedColor=n)}render(){super.render(),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}appendGrids(){if(!this.staticColorsGrid&&(this.staticColorsGrid=this._createStaticColorsGrid(),this.items.add(this.staticColorsGrid),this.focusTracker.add(this.staticColorsGrid.element),this._focusables.add(this.staticColorsGrid),this.documentColorsCount)){const t=Yh.bind(this.documentColors,this.documentColors),e=new Kg(this.locale);e.text=this._documentColorsLabel,e.extendTemplate({attributes:{class:["ck","ck-color-grid__label",t.if("isEmpty","ck-hidden")]}}),this.items.add(e),this.documentColorsGrid=this._createDocumentColorsGrid(),this.items.add(this.documentColorsGrid),this.focusTracker.add(this.documentColorsGrid.element),this._focusables.add(this.documentColorsGrid)}}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}_createRemoveColorButton(){const t=new Yu;return t.set({withText:!0,icon:Lu.eraser,label:this.removeButtonLabel}),t.class="ck-color-table__remove-color",t.on("execute",(()=>{this.fire("execute",{value:null})})),t.render(),this.focusTracker.add(t.element),this._focusables.add(t),t}_createStaticColorsGrid(){const t=new ag(this.locale,{colorDefinitions:this.colorDefinitions,columns:this.columns});return t.delegate("execute").to(this),t}_createDocumentColorsGrid(){const t=Yh.bind(this.documentColors,this.documentColors),e=new ag(this.locale,{columns:this.columns});return e.delegate("execute").to(this),e.extendTemplate({attributes:{class:t.if("isEmpty","ck-hidden")}}),e.items.bindTo(this.documentColors).using((t=>{const e=new ig;return e.set({color:t.color,hasBorder:t.options&&t.options.hasBorder}),t.label&&e.set({label:t.label,tooltip:!0}),e.on("execute",(()=>{this.fire("execute",{value:t.color})})),e})),this.documentColors.on("change:isEmpty",((t,n,o)=>{o&&(e.selectedColor=null)})),e}_addColorToDocumentColors(t){const e=this.colorDefinitions.find((e=>e.color===t));e?this.documentColors.add(Object.assign({},e)):this.documentColors.add({color:t,label:t,options:{hasBorder:!1}})}}const bx="fontSize",kx="fontFamily",wx="fontColor",_x="fontBackgroundColor";function Ax(t,e){const n={model:{key:t,values:[]},view:{},upcastAlso:{}};for(const t of e)n.model.values.push(t.model),n.view[t.model]=t.view,t.upcastAlso&&(n.upcastAlso[t.model]=t.upcastAlso);return n}function Cx(t){return e=>e.getStyle(t).replace(/\s/g,"")}function vx(t){return(e,{writer:n})=>n.createAttributeElement("span",{style:`${t}:${e}`},{priority:7})}class yx extends ux{constructor(t){super(t,kx)}}function xx(t){return t.map(Ex).filter((t=>!!t))}function Ex(t){return"object"==typeof t?t:"default"===t?{title:"Default",model:void 0}:"string"==typeof t?function(t){const e=t.replace(/"|'/g,"").split(","),n=e[0],o=e.map(Tx).join(", ");return{title:n,model:o,view:{name:"span",styles:{"font-family":o},priority:7}}}(t):void 0}function Tx(t){return(t=t.trim()).indexOf(" ")>0&&(t=`'${t}'`),t}class Dx extends Ii{static get pluginName(){return"FontFamilyEditing"}constructor(t){super(t),t.config.define(kx,{options:["default","Arial, Helvetica, sans-serif","Courier New, Courier, monospace","Georgia, serif","Lucida Sans Unicode, Lucida Grande, sans-serif","Tahoma, Geneva, sans-serif","Times New Roman, Times, serif","Trebuchet MS, Helvetica, sans-serif","Verdana, Geneva, sans-serif"],supportAllValues:!1})}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:kx}),t.model.schema.setAttributeProperties(kx,{isFormatting:!0,copyOnEnter:!0});const e=xx(t.config.get("fontFamily.options")).filter((t=>t.model)),n=Ax(kx,e);t.config.get("fontFamily.supportAllValues")?(this._prepareAnyValueConverters(),this._prepareCompatibilityConverter()):t.conversion.attributeToElement(n),t.commands.add(kx,new yx(t))}_prepareAnyValueConverters(){const t=this.editor;t.conversion.for("downcast").attributeToElement({model:kx,view:(t,{writer:e})=>e.createAttributeElement("span",{style:"font-family:"+t},{priority:7})}),t.conversion.for("upcast").elementToAttribute({model:{key:kx,value:t=>t.getStyle("font-family")},view:{name:"span",styles:{"font-family":/.*/}}})}_prepareCompatibilityConverter(){this.editor.conversion.for("upcast").elementToAttribute({view:{name:"font",attributes:{face:/.*/}},model:{key:kx,value:t=>t.getAttribute("face")}})}}class Sx extends Ii{static get pluginName(){return"FontFamilyUI"}init(){const t=this.editor,e=t.t,n=this._getLocalizedOptions(),o=t.commands.get(kx);t.ui.componentFactory.add(kx,(i=>{const r=Mg(i);return Hg(r,function(t,e){const n=new Ci;for(const o of t){const t={type:"button",model:new um({commandName:kx,commandParam:o.model,label:o.title,withText:!0})};t.model.bind("isOn").to(e,"value",(t=>t===o.model||!(!t||!o.model)&&t.split(",")[0].replace(/'/g,"").toLowerCase()===o.model.toLowerCase())),o.view&&o.view.styles&&t.model.set("labelStyle",`font-family: ${o.view.styles["font-family"]}`),n.add(t)}return n}(n,o)),r.buttonView.set({label:e("Font Family"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M11.03 3h6.149a.75.75 0 1 1 0 1.5h-5.514L11.03 3zm1.27 3h4.879a.75.75 0 1 1 0 1.5h-4.244L12.3 6zm1.27 3h3.609a.75.75 0 1 1 0 1.5h-2.973L13.57 9zm-2.754 2.5L8.038 4.785 5.261 11.5h5.555zm.62 1.5H4.641l-1.666 4.028H1.312l5.789-14h1.875l5.789 14h-1.663L11.436 13z"/></svg>',tooltip:!0}),r.extendTemplate({attributes:{class:"ck-font-family-dropdown"}}),r.bind("isEnabled").to(o),this.listenTo(r,"execute",(e=>{t.execute(e.source.commandName,{value:e.source.commandParam}),t.editing.view.focus()})),r}))}_getLocalizedOptions(){const t=this.editor,e=t.t;return xx(t.config.get(kx).options).map((t=>("Default"===t.title&&(t.title=e("Default")),t)))}}class Bx extends Ii{static get requires(){return[Dx,Sx]}static get pluginName(){return"FontFamily"}}class Ix extends ux{constructor(t){super(t,bx)}}function Px(t){return t.map((t=>function(t){if(e=t,"object"==typeof e&&e.title&&e.model&&e.view)return zx(t);var e;const n=function(t){return Rx[t]||Rx[t.model]}(t);if(n)return zx(n);if("default"===t)return{model:void 0,title:"Default"};if(function(t){let e;if("object"==typeof t){if(!t.model)throw new b("font-size-invalid-definition",null,t);e=parseFloat(t.model)}else e=parseFloat(t);return isNaN(e)}(t))return;return function(t){"number"!=typeof t&&"string"!=typeof t||(t={title:String(t),model:`${parseFloat(t)}px`});return t.view={name:"span",styles:{"font-size":t.model}},zx(t)}(t)}(t))).filter((t=>!!t))}const Rx={get tiny(){return{title:"Tiny",model:"tiny",view:{name:"span",classes:"text-tiny",priority:7}}},get small(){return{title:"Small",model:"small",view:{name:"span",classes:"text-small",priority:7}}},get big(){return{title:"Big",model:"big",view:{name:"span",classes:"text-big",priority:7}}},get huge(){return{title:"Huge",model:"huge",view:{name:"span",classes:"text-huge",priority:7}}}};function zx(t){return t.view.priority||(t.view.priority=7),t}const Vx=["x-small","x-small","small","medium","large","x-large","xx-large","xxx-large"];class Fx extends Ii{static get pluginName(){return"FontSizeEditing"}constructor(t){super(t),t.config.define(bx,{options:["tiny","small","default","big","huge"],supportAllValues:!1})}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:bx}),t.model.schema.setAttributeProperties(bx,{isFormatting:!0,copyOnEnter:!0});const e=t.config.get("fontSize.supportAllValues"),n=Px(this.editor.config.get("fontSize.options")).filter((t=>t.model)),o=Ax(bx,n);e?(this._prepareAnyValueConverters(o),this._prepareCompatibilityConverter()):t.conversion.attributeToElement(o),t.commands.add(bx,new Ix(t))}_prepareAnyValueConverters(t){const e=this.editor,n=t.model.values.filter((t=>!fh(String(t))&&!kh(String(t))));if(n.length)throw new b("font-size-invalid-use-of-named-presets",null,{presets:n});e.conversion.for("downcast").attributeToElement({model:bx,view:(t,{writer:e})=>{if(t)return e.createAttributeElement("span",{style:"font-size:"+t},{priority:7})}}),e.conversion.for("upcast").elementToAttribute({model:{key:bx,value:t=>t.getStyle("font-size")},view:{name:"span",styles:{"font-size":/.*/}}})}_prepareCompatibilityConverter(){this.editor.conversion.for("upcast").elementToAttribute({view:{name:"font",attributes:{size:/^[+-]?\d{1,3}$/}},model:{key:bx,value:t=>{const e=t.getAttribute("size"),n="-"===e[0]||"+"===e[0];let o=parseInt(e,10);n&&(o=3+o);const i=Vx.length-1,r=Math.min(Math.max(o,0),i);return Vx[r]}}})}}var Ox=n(6007),Nx={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(Ox.Z,Nx);Ox.Z.locals;class Mx extends Ii{static get pluginName(){return"FontSizeUI"}init(){const t=this.editor,e=t.t,n=this._getLocalizedOptions(),o=t.commands.get(bx);t.ui.componentFactory.add(bx,(i=>{const r=Mg(i);return Hg(r,function(t,e){const n=new Ci;for(const o of t){const t={type:"button",model:new um({commandName:bx,commandParam:o.model,label:o.title,class:"ck-fontsize-option",withText:!0})};o.view&&o.view.styles&&t.model.set("labelStyle",`font-size:${o.view.styles["font-size"]}`),o.view&&o.view.classes&&t.model.set("class",`${t.model.class} ${o.view.classes}`),t.model.bind("isOn").to(e,"value",(t=>t===o.model)),n.add(t)}return n}(n,o)),r.buttonView.set({label:e("Font Size"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M9.816 11.5 7.038 4.785 4.261 11.5h5.555zm.62 1.5H3.641l-1.666 4.028H.312l5.789-14h1.875l5.789 14h-1.663L10.436 13zm7.55 2.279.779-.779.707.707-2.265 2.265-2.193-2.265.707-.707.765.765V4.825c0-.042 0-.083.002-.123l-.77.77-.707-.707L17.207 2.5l2.265 2.265-.707.707-.782-.782c.002.043.003.089.003.135v10.454z"/></svg>',tooltip:!0}),r.extendTemplate({attributes:{class:["ck-font-size-dropdown"]}}),r.bind("isEnabled").to(o),this.listenTo(r,"execute",(e=>{t.execute(e.source.commandName,{value:e.source.commandParam}),t.editing.view.focus()})),r}))}_getLocalizedOptions(){const t=this.editor,e=t.t,n={Default:e("Default"),Tiny:e("Tiny"),Small:e("Small"),Big:e("Big"),Huge:e("Huge")};return Px(t.config.get(bx).options).map((t=>{const e=n[t.title];return e&&e!=t.title&&(t=Object.assign({},t,{title:e})),t}))}}class Lx extends Ii{static get requires(){return[Fx,Mx]}static get pluginName(){return"FontSize"}normalizeSizeOptions(t){return Px(t)}}class Hx extends ux{constructor(t){super(t,wx)}}class qx extends Ii{static get pluginName(){return"FontColorEditing"}constructor(t){super(t),t.config.define(wx,{colors:[{color:"hsl(0, 0%, 0%)",label:"Black"},{color:"hsl(0, 0%, 30%)",label:"Dim grey"},{color:"hsl(0, 0%, 60%)",label:"Grey"},{color:"hsl(0, 0%, 90%)",label:"Light grey"},{color:"hsl(0, 0%, 100%)",label:"White",hasBorder:!0},{color:"hsl(0, 75%, 60%)",label:"Red"},{color:"hsl(30, 75%, 60%)",label:"Orange"},{color:"hsl(60, 75%, 60%)",label:"Yellow"},{color:"hsl(90, 75%, 60%)",label:"Light green"},{color:"hsl(120, 75%, 60%)",label:"Green"},{color:"hsl(150, 75%, 60%)",label:"Aquamarine"},{color:"hsl(180, 75%, 60%)",label:"Turquoise"},{color:"hsl(210, 75%, 60%)",label:"Light blue"},{color:"hsl(240, 75%, 60%)",label:"Blue"},{color:"hsl(270, 75%, 60%)",label:"Purple"}],columns:5}),t.conversion.for("upcast").elementToAttribute({view:{name:"span",styles:{color:/[\s\S]+/}},model:{key:wx,value:Cx("color")}}),t.conversion.for("upcast").elementToAttribute({view:{name:"font",attributes:{color:/^#?\w+$/}},model:{key:wx,value:t=>t.getAttribute("color")}}),t.conversion.for("downcast").attributeToElement({model:wx,view:vx("color")}),t.commands.add(wx,new Hx(t)),t.model.schema.extend("$text",{allowAttributes:wx}),t.model.schema.setAttributeProperties(wx,{isFormatting:!0,copyOnEnter:!0})}}class Wx extends Ii{constructor(t,{commandName:e,icon:n,componentName:o,dropdownLabel:i}){super(t),this.commandName=e,this.componentName=o,this.icon=n,this.dropdownLabel=i,this.columns=t.config.get(`${this.componentName}.columns`),this.colorTableView=void 0}init(){const t=this.editor,e=t.locale,n=e.t,o=t.commands.get(this.commandName),i=eg(e,ng(t.config.get(this.componentName).colors)),r=t.config.get(`${this.componentName}.documentColors`);t.ui.componentFactory.add(this.componentName,(e=>{const s=Mg(e);return this.colorTableView=function({dropdownView:t,colors:e,columns:n,removeButtonLabel:o,documentColorsLabel:i,documentColorsCount:r}){const s=t.locale,a=new fx(s,{colors:e,columns:n,removeButtonLabel:o,documentColorsLabel:i,documentColorsCount:r});return t.colorTableView=a,t.panelView.children.add(a),a.delegate("execute").to(t,"execute"),a}({dropdownView:s,colors:i.map((t=>({label:t.label,color:t.model,options:{hasBorder:t.hasBorder}}))),columns:this.columns,removeButtonLabel:n("Remove color"),documentColorsLabel:0!==r?n("Document colors"):void 0,documentColorsCount:void 0===r?this.columns:r}),this.colorTableView.bind("selectedColor").to(o,"value"),s.buttonView.set({label:this.dropdownLabel,icon:this.icon,tooltip:!0}),s.extendTemplate({attributes:{class:"ck-color-ui-dropdown"}}),s.bind("isEnabled").to(o),s.on("execute",((e,n)=>{t.execute(this.commandName,n),t.editing.view.focus()})),s.on("change:isOpen",((e,n,o)=>{s.colorTableView.appendGrids(),o&&(0!==r&&this.colorTableView.updateDocumentColors(t.model,this.componentName),this.colorTableView.updateSelectedColors())})),qg(s,(()=>s.colorTableView.staticColorsGrid.items.find((t=>t.isOn)))),s}))}}class jx extends Wx{constructor(t){const e=t.locale.t;super(t,{commandName:wx,componentName:wx,icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M12.4 10.3 10 4.5l-2.4 5.8h4.8zm.5 1.2H7.1L5.7 15H4.2l5-12h1.6l5 12h-1.5L13 11.5zm3.1 7H4a1 1 0 0 1 0-2h12a1 1 0 0 1 0 2z"/></svg>',dropdownLabel:e("Font Color")})}static get pluginName(){return"FontColorUI"}}class Ux extends Ii{static get requires(){return[qx,jx]}static get pluginName(){return"FontColor"}}class $x extends ux{constructor(t){super(t,_x)}}class Gx extends Ii{static get pluginName(){return"FontBackgroundColorEditing"}constructor(t){super(t),t.config.define(_x,{colors:[{color:"hsl(0, 0%, 0%)",label:"Black"},{color:"hsl(0, 0%, 30%)",label:"Dim grey"},{color:"hsl(0, 0%, 60%)",label:"Grey"},{color:"hsl(0, 0%, 90%)",label:"Light grey"},{color:"hsl(0, 0%, 100%)",label:"White",hasBorder:!0},{color:"hsl(0, 75%, 60%)",label:"Red"},{color:"hsl(30, 75%, 60%)",label:"Orange"},{color:"hsl(60, 75%, 60%)",label:"Yellow"},{color:"hsl(90, 75%, 60%)",label:"Light green"},{color:"hsl(120, 75%, 60%)",label:"Green"},{color:"hsl(150, 75%, 60%)",label:"Aquamarine"},{color:"hsl(180, 75%, 60%)",label:"Turquoise"},{color:"hsl(210, 75%, 60%)",label:"Light blue"},{color:"hsl(240, 75%, 60%)",label:"Blue"},{color:"hsl(270, 75%, 60%)",label:"Purple"}],columns:5}),t.data.addStyleProcessorRules(Ph),t.conversion.for("upcast").elementToAttribute({view:{name:"span",styles:{"background-color":/[\s\S]+/}},model:{key:_x,value:Cx("background-color")}}),t.conversion.for("downcast").attributeToElement({model:_x,view:vx("background-color")}),t.commands.add(_x,new $x(t)),t.model.schema.extend("$text",{allowAttributes:_x}),t.model.schema.setAttributeProperties(_x,{isFormatting:!0,copyOnEnter:!0})}}class Kx extends Wx{constructor(t){const e=t.locale.t;super(t,{commandName:_x,componentName:_x,icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M4 2h12a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2zm8.38 9.262H7.62L10 5.506l2.38 5.756zm.532 1.285L14.34 16h1.426L10.804 4H9.196L4.234 16H5.66l1.428-3.453h5.824z"/></svg>',dropdownLabel:e("Font Background Color")})}static get pluginName(){return"FontBackgroundColorUI"}}class Zx extends Ii{static get requires(){return[Gx,Kx]}static get pluginName(){return"FontBackgroundColor"}}function Jx(t){const e=t.t,n=t.config.get("codeBlock.languages");for(const t of n)"Plain text"===t.label&&(t.label=e("Plain text")),void 0===t.class&&(t.class=`language-${t.language}`);return n}function Yx(t,e,n){const o={};for(const i of t)"class"===e?o[i[e].split(" ").shift()]=i[n]:o[i[e]]=i[n];return o}function Qx(t){return t.data.match(/^(\s*)/)[0]}function Xx(t){const e=t.document.selection,n=[];if(e.isCollapsed)n.push(e.anchor);else{const o=e.getFirstRange().getWalker({ignoreElementEnd:!0,direction:"backward"});for(const{item:e}of o)if(e.is("$textProxy")&&e.parent.is("element","codeBlock")){const o=Qx(e.textNode),{parent:i,startOffset:r}=e.textNode,s=t.createPositionAt(i,r+o.length);n.push(s)}}return n}function tE(t){const e=vi(t.getSelectedBlocks());return e&&e.is("element","codeBlock")}function eE(t,e){return!e.is("rootElement")&&!t.isLimit(e)&&t.checkChild(e.parent,"codeBlock")}class nE extends Ri{constructor(t){super(t),this._lastLanguage=null}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){const e=this.editor,n=e.model,o=n.document.selection,i=Jx(e)[0],r=Array.from(o.getSelectedBlocks()),s=void 0===t.forceValue?!this.value:t.forceValue,a=function(t,e,n){if(t.language)return t.language;if(t.usePreviousLanguageChoice&&e)return e;return n}(t,this._lastLanguage,i.language);n.change((t=>{s?this._applyCodeBlock(t,r,a):this._removeCodeBlock(t,r)}))}_getValue(){const t=vi(this.editor.model.document.selection.getSelectedBlocks());return!!!(!t||!t.is("element","codeBlock"))&&t.getAttribute("language")}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=vi(t.getSelectedBlocks());return!!n&&eE(e,n)}_applyCodeBlock(t,e,n){this._lastLanguage=n;const o=this.editor.model.schema,i=e.filter((t=>eE(o,t)));for(const e of i)t.rename(e,"codeBlock"),t.setAttribute("language",n,e),o.removeDisallowedAttributes([e],t),Array.from(e.getChildren()).filter((t=>!o.checkChild(e,t))).forEach((e=>t.remove(e)));i.reverse().forEach(((e,n)=>{const o=i[n+1];e.previousSibling===o&&(t.appendElement("softBreak",o),t.merge(t.createPositionBefore(e)))}))}_removeCodeBlock(t,e){const n=e.filter((t=>t.is("element","codeBlock")));for(const e of n){const n=t.createRangeOn(e);for(const e of Array.from(n.getItems()).reverse())if(e.is("element","softBreak")&&e.parent.is("element","codeBlock")){const{position:n}=t.split(t.createPositionBefore(e));t.rename(n.nodeAfter,"paragraph"),t.removeAttribute("language",n.nodeAfter),t.remove(e)}t.rename(e,"paragraph"),t.removeAttribute("language",e)}}}class oE extends Ri{constructor(t){super(t),this._indentSequence=t.config.get("codeBlock.indentSequence")}refresh(){this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model;t.change((e=>{const n=Xx(t);for(const o of n){const n=e.createText(this._indentSequence);t.insertContent(n,o)}}))}_checkEnabled(){return!!this._indentSequence&&tE(this.editor.model.document.selection)}}class iE extends Ri{constructor(t){super(t),this._indentSequence=t.config.get("codeBlock.indentSequence")}refresh(){this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model;t.change((()=>{const e=Xx(t);for(const n of e){const e=rE(t,n,this._indentSequence);e&&t.deleteContent(t.createSelection(e))}}))}_checkEnabled(){if(!this._indentSequence)return!1;const t=this.editor.model;return!!tE(t.document.selection)&&Xx(t).some((e=>rE(t,e,this._indentSequence)))}}function rE(t,e,n){const o=function(t){let e=t.parent.getChild(t.index);e&&!e.is("element","softBreak")||(e=t.nodeBefore);if(!e||e.is("element","softBreak"))return null;return e}(e);if(!o)return null;const i=Qx(o),r=i.lastIndexOf(n);if(r+n.length!==i.length)return null;if(-1===r)return null;const{parent:s,startOffset:a}=o;return t.createRange(t.createPositionAt(s,a+r),t.createPositionAt(s,a+r+n.length))}function sE(t,e,n=!1){const o=Yx(e,"language","class"),i=Yx(e,"language","label");return(e,r,s)=>{const{writer:a,mapper:l,consumable:c}=s;if(!c.consume(r.item,"insert"))return;const d=r.item.getAttribute("language"),h=l.toViewPosition(t.createPositionBefore(r.item)),u={};n&&(u["data-language"]=i[d],u.spellcheck="false");const g=a.createContainerElement("code",{class:o[d]||null}),m=a.createContainerElement("pre",u,g);a.insert(h,m),l.bindElements(r.item,g)}}const aE="paragraph";class lE extends Ii{static get pluginName(){return"CodeBlockEditing"}static get requires(){return[Ff]}constructor(t){super(t),t.config.define("codeBlock",{languages:[{language:"plaintext",label:"Plain text"},{language:"c",label:"C"},{language:"cs",label:"C#"},{language:"cpp",label:"C++"},{language:"css",label:"CSS"},{language:"diff",label:"Diff"},{language:"html",label:"HTML"},{language:"java",label:"Java"},{language:"javascript",label:"JavaScript"},{language:"php",label:"PHP"},{language:"python",label:"Python"},{language:"ruby",label:"Ruby"},{language:"typescript",label:"TypeScript"},{language:"xml",label:"XML"}],indentSequence:"\t"})}init(){const t=this.editor,e=t.model.schema,n=t.model,o=t.editing.view,i=t.plugins.has("DocumentListEditing"),r=Jx(t);t.commands.add("codeBlock",new nE(t)),t.commands.add("indentCodeBlock",new oE(t)),t.commands.add("outdentCodeBlock",new iE(t)),this.listenTo(o.document,"tab",((e,n)=>{const o=n.shiftKey?"outdentCodeBlock":"indentCodeBlock";t.commands.get(o).isEnabled&&(t.execute(o),n.stopPropagation(),n.preventDefault(),e.stop())}),{context:"pre"}),e.register("codeBlock",{allowWhere:"$block",allowChildren:"$text",isBlock:!0,allowAttributes:["language"]}),e.addAttributeCheck(((t,e)=>{const n=t.endsWith("codeBlock")&&e.startsWith("list")&&"list"!==e;return!(!i||!n)||!t.endsWith("codeBlock $text")&&void 0})),t.model.schema.addChildCheck(((t,e)=>{if(t.endsWith("codeBlock")&&e.isObject)return!1})),t.editing.downcastDispatcher.on("insert:codeBlock",sE(n,r,!0)),t.data.downcastDispatcher.on("insert:codeBlock",sE(n,r)),t.data.downcastDispatcher.on("insert:softBreak",function(t){return(e,n,o)=>{if("codeBlock"!==n.item.parent.name)return;const{writer:i,mapper:r,consumable:s}=o;if(!s.consume(n.item,"insert"))return;const a=r.toViewPosition(t.createPositionBefore(n.item));i.insert(a,i.createText("\n"))}}(n),{priority:"high"}),t.data.upcastDispatcher.on("element:code",function(t,e){const n=Yx(e,"class","language"),o=e[0].language;return(t,e,i)=>{const r=e.viewItem,s=r.parent;if(!s||!s.is("element","pre"))return;if(e.modelCursor.findAncestor("codeBlock"))return;const{consumable:a,writer:l}=i;if(!a.test(r,{name:!0}))return;const c=l.createElement("codeBlock"),d=[...r.getClassNames()];d.length||d.push("");for(const t of d){const e=n[t];if(e){l.setAttribute("language",e,c);break}}c.hasAttribute("language")||l.setAttribute("language",o,c),i.convertChildren(r,c),i.safeInsert(c,e.modelCursor)&&(a.consume(r,{name:!0}),i.updateConversionResult(c,e))}}(0,r)),t.data.upcastDispatcher.on("text",((t,e,{consumable:n,writer:o})=>{let i=e.modelCursor;if(!n.test(e.viewItem))return;if(!i.findAncestor("codeBlock"))return;n.consume(e.viewItem);const r=e.viewItem.data.split("\n").map((t=>o.createText(t))),s=r[r.length-1];for(const t of r)if(o.insert(t,i),i=i.getShiftedBy(t.offsetSize),t!==s){const t=o.createElement("softBreak");o.insert(t,i),i=o.createPositionAfter(t)}e.modelRange=o.createRange(e.modelCursor,i),e.modelCursor=i})),t.data.upcastDispatcher.on("element:pre",((t,e,{consumable:n})=>{const o=e.viewItem;if(o.findAncestor("pre"))return;const i=Array.from(o.getChildren()),r=i.find((t=>t.is("element","code")));if(r)for(const t of i)t!==r&&t.is("$text")&&n.consume(t,{name:!0})}),{priority:"high"}),this.listenTo(t.editing.view.document,"clipboardInput",((e,o)=>{let i=n.createRange(n.document.selection.anchor);if(o.targetRanges&&(i=t.editing.mapper.toModelRange(o.targetRanges[0])),!i.start.parent.is("element","codeBlock"))return;const r=o.dataTransfer.getData("text/plain"),s=new rh(t.editing.view.document);o.content=function(t,e){const n=t.createDocumentFragment(),o=e.split("\n"),i=o.reduce(((e,n,i)=>(e.push(n),i<o.length-1&&e.push(t.createElement("br")),e)),[]);return t.appendChild(i,n),n}(s,r)})),this.listenTo(n,"getSelectedContent",((t,[o])=>{const i=o.anchor;!o.isCollapsed&&i.parent.is("element","codeBlock")&&i.hasSameParentAs(o.focus)&&n.change((n=>{const r=t.return;if(r.childCount>1||o.containsEntireContent(i.parent)){const e=n.createElement("codeBlock",i.parent.getAttributes());n.append(r,e);const o=n.createDocumentFragment();n.append(e,o),t.return=o}else{const t=r.getChild(0);e.checkAttribute(t,"code")&&n.setAttribute("code",!0,t)}}))}))}afterInit(){const t=this.editor,e=t.commands,n=e.get("indent"),o=e.get("outdent");n&&n.registerChildCommand(e.get("indentCodeBlock"),{priority:"highest"}),o&&o.registerChildCommand(e.get("outdentCodeBlock")),this.listenTo(t.editing.view.document,"enter",((e,n)=>{t.model.document.selection.getLastPosition().parent.is("element","codeBlock")&&(function(t,e){const n=t.model.document,o=t.editing.view,i=n.selection.getLastPosition(),r=i.nodeAfter;if(e||!n.selection.isCollapsed||!i.isAtStart)return!1;if(!dE(r))return!1;return t.model.change((e=>{t.execute("enter");const o=n.selection.anchor.parent.previousSibling;e.rename(o,aE),e.setSelection(o,"in"),t.model.schema.removeDisallowedAttributes([o],e),e.remove(r)})),o.scrollToTheSelection(),!0}(t,n.isSoft)||function(t,e){const n=t.model,o=n.document,i=t.editing.view,r=o.selection.getLastPosition(),s=r.nodeBefore;let a;if(e||!o.selection.isCollapsed||!r.isAtEnd||!s||!s.previousSibling)return!1;if(dE(s)&&dE(s.previousSibling))a=n.createRange(n.createPositionBefore(s.previousSibling),n.createPositionAfter(s));else if(cE(s)&&dE(s.previousSibling)&&dE(s.previousSibling.previousSibling))a=n.createRange(n.createPositionBefore(s.previousSibling.previousSibling),n.createPositionAfter(s));else{if(!(cE(s)&&dE(s.previousSibling)&&cE(s.previousSibling.previousSibling)&&dE(s.previousSibling.previousSibling.previousSibling)))return!1;a=n.createRange(n.createPositionBefore(s.previousSibling.previousSibling.previousSibling),n.createPositionAfter(s))}return t.model.change((e=>{e.remove(a),t.execute("enter");const n=o.selection.anchor.parent;e.rename(n,aE),t.model.schema.removeDisallowedAttributes([n],e)})),i.scrollToTheSelection(),!0}(t,n.isSoft)||function(t){const e=t.model.document,n=e.selection.getLastPosition(),o=n.nodeBefore||n.textNode;let i;o&&o.is("$text")&&(i=Qx(o));t.model.change((n=>{t.execute("shiftEnter"),i&&n.insertText(i,e.selection.anchor)}))}(t),n.preventDefault(),e.stop())}),{context:"pre"})}}function cE(t){return t&&t.is("$text")&&!t.data.match(/\S/)}function dE(t){return t&&t.is("element","softBreak")}var hE=n(8343),uE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(hE.Z,uE);hE.Z.locals;class gE extends Ii{static get pluginName(){return"CodeBlockUI"}init(){const t=this.editor,e=t.t,n=t.ui.componentFactory,o=Jx(t);n.add("codeBlock",(n=>{const i=t.commands.get("codeBlock"),r=Mg(n,ug),s=r.buttonView;return s.set({label:e("Insert code block"),tooltip:!0,icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M12.87 12.61a.75.75 0 0 1-.089.976l-.085.07-3.154 2.254 3.412 2.414a.75.75 0 0 1 .237.95l-.057.095a.75.75 0 0 1-.95.237l-.096-.058-4.272-3.022-.003-1.223 4.01-2.867a.75.75 0 0 1 1.047.174zm2.795-.231.095.057 4.011 2.867-.003 1.223-4.272 3.022-.095.058a.75.75 0 0 1-.88-.151l-.07-.086-.058-.095a.75.75 0 0 1 .15-.88l.087-.07 3.412-2.414-3.154-2.253-.085-.071a.75.75 0 0 1 .862-1.207zM16 0a2 2 0 0 1 2 2v9.354l-.663-.492-.837-.001V2a.5.5 0 0 0-.5-.5H2a.5.5 0 0 0-.5.5v15a.5.5 0 0 0 .5.5h3.118L7.156 19H2a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h14zM5.009 15l.003 1H3v-1h2.009zm2.188-2-1.471 1H5v-1h2.197zM10 11v.095L8.668 12H7v-1h3zm4-2v1H7V9h7zm0-2v1H7V7h7zm-4-2v1H5V5h5zM6 3v1H3V3h3z"/></svg>',isToggleable:!0}),s.bind("isOn").to(i,"value",(t=>!!t)),s.on("execute",(()=>{t.execute("codeBlock",{usePreviousLanguageChoice:!0}),t.editing.view.focus()})),r.on("execute",(e=>{t.execute("codeBlock",{language:e.source._codeBlockLanguage,forceValue:!0}),t.editing.view.focus()})),r.class="ck-code-block-dropdown",r.bind("isEnabled").to(i),Hg(r,this._getLanguageListItemDefinitions(o)),r}))}_getLanguageListItemDefinitions(t){const e=this.editor.commands.get("codeBlock"),n=new Ci;for(const o of t){const t={type:"button",model:new um({_codeBlockLanguage:o.language,label:o.label,withText:!0})};t.model.bind("isOn").to(e,"value",(e=>e===t.model._codeBlockLanguage)),n.add(t)}return n}}class mE extends Ri{refresh(){const t=this.editor.model,e=t.document;this.isEnabled=t.schema.checkAttributeInSelection(e.selection,"mention")}execute(t){const e=this.editor.model,n=e.document.selection,o="string"==typeof t.mention?{id:t.mention}:t.mention,i=o.id,r=t.range||n.getFirstRange(),s=t.text||i,a=fE({_text:s,id:i},o);if(1!=t.marker.length)throw new b("mentioncommand-incorrect-marker",this);if(i.charAt(0)!=t.marker)throw new b("mentioncommand-incorrect-id",this);e.change((t=>{const o=Ei(n.getAttributes()),i=new Map(o.entries());i.set("mention",a),e.insertContent(t.createText(s,i),r),e.insertContent(t.createText(" ",o),r.start.getShiftedBy(s.length))}))}}class pE extends Ii{static get pluginName(){return"MentionEditing"}init(){const t=this.editor,e=t.model,n=e.document;e.schema.extend("$text",{allowAttributes:"mention"}),t.conversion.for("upcast").elementToAttribute({view:{name:"span",key:"data-mention",classes:"mention"},model:{key:"mention",value:t=>bE(t)}}),t.conversion.for("downcast").attributeToElement({model:"mention",view:wE}),t.conversion.for("downcast").add(kE),n.registerPostFixer((t=>function(t,e,n){const o=e.differ.getChanges();let i=!1;for(const e of o){const o=e.position;if("$text"==e.name){const e=o.textNode&&o.textNode.nextSibling;i=AE(o.textNode,t)||i,i=AE(e,t)||i,i=AE(o.nodeBefore,t)||i,i=AE(o.nodeAfter,t)||i}if("$text"!=e.name&&"insert"==e.type){const e=o.nodeAfter;for(const n of t.createRangeIn(e).getItems())i=AE(n,t)||i}if("insert"==e.type&&n.isInline(e.name)){const e=o.nodeAfter&&o.nodeAfter.nextSibling;i=AE(o.nodeBefore,t)||i,i=AE(e,t)||i}}return i}(t,n,e.schema))),n.registerPostFixer((t=>function(t,e){const n=e.differ.getChanges();let o=!1;for(const e of n)if("attribute"===e.type&&"mention"!=e.attributeKey){const n=e.range.start.nodeBefore,i=e.range.end.nodeAfter;for(const r of[n,i])_E(r)&&r.getAttribute(e.attributeKey)!=e.attributeNewValue&&(t.setAttribute(e.attributeKey,e.attributeNewValue,r),o=!0)}return o}(t,n))),n.registerPostFixer((t=>function(t,e){const n=e.selection,o=n.focus;if(n.isCollapsed&&n.hasAttribute("mention")&&function(t){const e=t.isAtStart;return t.nodeBefore&&t.nodeBefore.is("$text")||e}(o))return t.removeSelectionAttribute("mention"),!0}(t,n))),t.commands.add("mention",new mE(t))}}function fE(t,e){return Object.assign({uid:m()},t,e||{})}function bE(t,e){const n=t.getAttribute("data-mention"),o=t.getChild(0);if(!o)return;return fE({id:n,_text:o.data},e)}function kE(t){t.on("attribute:mention",((t,e,n)=>{const o=e.attributeNewValue;if(!e.item.is("$textProxy")||!o)return;const i=e.range.start;(i.textNode||i.nodeAfter).data!=o._text&&n.consumable.consume(e.item,t.name)}),{priority:"highest"})}function wE(t,{writer:e}){if(!t)return;const n={class:"mention","data-mention":t.id},o={id:t.uid,priority:20};return e.createAttributeElement("span",n,o)}function _E(t){if(!t||!t.is("$text")&&!t.is("$textProxy")||!t.hasAttribute("mention"))return!1;return t.data!=t.getAttribute("mention")._text}function AE(t,e){return!!_E(t)&&(e.removeAttribute("mention",t),!0)}var CE=n(7640),vE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(CE.Z,vE);CE.Z.locals;class yE extends Pg{constructor(t){super(t),this.extendTemplate({attributes:{class:["ck-mentions"],tabindex:"-1"}})}selectFirst(){this.select(0)}selectNext(){const t=this.selected,e=this.items.getIndex(t);this.select(e+1)}selectPrevious(){const t=this.selected,e=this.items.getIndex(t);this.select(e-1)}select(t){let e=0;t>0&&t<this.items.length?e=t:t<0&&(e=this.items.length-1);const n=this.items.get(e);this.selected!==n&&(this.selected&&this.selected.removeHighlight(),n.highlight(),this.selected=n,this._isItemVisibleInScrolledArea(n)||(this.element.scrollTop=n.element.offsetTop))}executeSelected(){this.selected.fire("execute")}_isItemVisibleInScrolledArea(t){return new No(this.element).contains(new No(t.element))}}class xE extends _u{constructor(t,e){super(t),this.template=!1,this.domElement=e,this.domElement.classList.add("ck-button"),this.set("isOn",!1),this.on("change:isOn",((t,e,n)=>{n?(this.domElement.classList.add("ck-on"),this.domElement.classList.remove("ck-off")):(this.domElement.classList.add("ck-off"),this.domElement.classList.remove("ck-on"))})),this.listenTo(this.domElement,"click",(()=>{this.fire("execute")}))}render(){super.render(),this.element=this.domElement}}class EE extends Rg{highlight(){this.children.first.isOn=!0}removeHighlight(){this.children.first.isOn=!1}}const TE=[hi.arrowup,hi.arrowdown,hi.esc],DE=[hi.enter,hi.tab];class SE extends Ii{static get pluginName(){return"MentionUI"}static get requires(){return[wm]}constructor(t){super(t),this._mentionsView=this._createMentionView(),this._mentionsConfigurations=new Map,this._requestFeedDebounced=Ba(this._requestFeed,100),t.config.define("mention",{feeds:[]})}init(){const t=this.editor,e=t.config.get("mention.commitKeys")||DE,n=TE.concat(e);this._balloon=t.plugins.get(wm),t.editing.view.document.on("keydown",((t,o)=>{if(i=o.keyCode,n.includes(i)&&this._isUIVisible){if(o.keyCode==hi.space)return void this._hideUIAndRemoveMarker();o.preventDefault(),t.stop(),o.keyCode==hi.arrowdown&&this._mentionsView.selectNext(),o.keyCode==hi.arrowup&&this._mentionsView.selectPrevious(),e.includes(o.keyCode)&&this._mentionsView.executeSelected(),o.keyCode==hi.esc&&this._hideUIAndRemoveMarker()}var i}),{priority:"highest"}),Hu({emitter:this._mentionsView,activator:()=>this._isUIVisible,contextElements:[this._balloon.view.element],callback:()=>this._hideUIAndRemoveMarker()});const o=t.config.get("mention.feeds");for(const t of o){const e=t.feed,n=t.marker;if(!zE(n))throw new b("mentionconfig-incorrect-marker",null,{marker:n});const o={marker:n,feedCallback:"function"==typeof e?e.bind(this.editor):RE(e),itemRenderer:t.itemRenderer};this._mentionsConfigurations.set(n,o)}this._setupTextWatcher(o),this.listenTo(t,"change:isReadOnly",(()=>{this._hideUIAndRemoveMarker()})),this.on("requestFeed:response",((t,e)=>this._handleFeedResponse(e))),this.on("requestFeed:error",(()=>this._hideUIAndRemoveMarker()))}destroy(){super.destroy(),this._mentionsView.destroy()}get _isUIVisible(){return this._balloon.visibleView===this._mentionsView}_createMentionView(){const t=this.editor.locale,e=new yE(t);return this._items=new Ci,e.items.bindTo(this._items).using((n=>{const{item:o,marker:i}=n,r=this.editor.config.get("mention.dropdownLimit")||10;if(e.items.length>=r)return;const s=new EE(t),a=this._renderItem(o,i);return a.delegate("execute").to(s),s.children.add(a),s.item=o,s.marker=i,s.on("execute",(()=>{e.fire("execute",{item:o,marker:i})})),s})),e.on("execute",((t,e)=>{const n=this.editor,o=n.model,i=e.item,r=e.marker,s=n.model.markers.get("mention"),a=o.createPositionAt(o.document.selection.focus),l=o.createPositionAt(s.getStart()),c=o.createRange(l,a);this._hideUIAndRemoveMarker(),n.execute("mention",{mention:i,text:i.text,marker:r,range:c}),n.editing.view.focus()})),e}_getItemRenderer(t){const{itemRenderer:e}=this._mentionsConfigurations.get(t);return e}_requestFeed(t,e){this._lastRequested=e;const{feedCallback:n}=this._mentionsConfigurations.get(t),o=n(e);o instanceof Promise?o.then((n=>{this._lastRequested==e?this.fire("requestFeed:response",{feed:n,marker:t,feedText:e}):this.fire("requestFeed:discarded",{feed:n,marker:t,feedText:e})})).catch((e=>{this.fire("requestFeed:error",{error:e}),k("mention-feed-callback-error",{marker:t})})):this.fire("requestFeed:response",{feed:o,marker:t,feedText:e})}_setupTextWatcher(t){const e=this.editor,n=t.map((t=>({...t,pattern:PE(t.marker,t.minimumCharacters||0)}))),o=new Dp(e.model,function(t){return e=>{const n=IE(t,e);if(!n)return!1;let o=0;0!==n.position&&(o=n.position-1);const i=e.substring(o);return n.pattern.test(i)}}(n));o.on("matched:data",((t,o)=>{const i=IE(n,o.text),r=e.model.document.selection.focus,s=e.model.createPositionAt(r.parent,i.position);if(function(t){const e=t.textNode&&t.textNode.hasAttribute("mention"),n=t.nodeBefore;return e||n&&n.is("$text")&&n.hasAttribute("mention")}(r)||function(t){const e=t.nodeAfter;return e&&e.is("$text")&&e.hasAttribute("mention")}(s))return void this._hideUIAndRemoveMarker();const a=function(t,e){let n=0;0!==t.position&&(n=t.position-1);const o=PE(t.marker,0),i=e.substring(n);return i.match(o)[2]}(i,o.text),l=i.marker.length+a.length,c=r.getShiftedBy(-l),d=r.getShiftedBy(-a.length),h=e.model.createRange(c,d);if(VE(e)){const t=e.model.markers.get("mention");e.model.change((e=>{e.updateMarker(t,{range:h})}))}else e.model.change((t=>{t.addMarker("mention",{range:h,usingOperation:!1,affectsData:!1})}));this._requestFeedDebounced(i.marker,a)})),o.on("unmatched",(()=>{this._hideUIAndRemoveMarker()}));const i=e.commands.get("mention");return o.bind("isEnabled").to(i),o}_handleFeedResponse(t){const{feed:e,marker:n}=t;if(!VE(this.editor))return;this._items.clear();for(const t of e){const e="object"!=typeof t?{id:t,text:t}:t;this._items.add({item:e,marker:n})}const o=this.editor.model.markers.get("mention");this._items.length?this._showOrUpdateUI(o):this._hideUIAndRemoveMarker()}_showOrUpdateUI(t){this._isUIVisible?this._balloon.updatePosition(this._getBalloonPanelPositionData(t,this._mentionsView.position)):this._balloon.add({view:this._mentionsView,position:this._getBalloonPanelPositionData(t,this._mentionsView.position),singleViewMode:!0}),this._mentionsView.position=this._balloon.view.position,this._mentionsView.selectFirst()}_hideUIAndRemoveMarker(){this._balloon.hasView(this._mentionsView)&&this._balloon.remove(this._mentionsView),VE(this.editor)&&this.editor.model.change((t=>t.removeMarker("mention"))),this._mentionsView.position=void 0}_renderItem(t,e){const n=this.editor;let o,i=t.id;const r=this._getItemRenderer(e);if(r){const e=r(t);"string"!=typeof e?o=new xE(n.locale,e):i=e}if(!o){const t=new Yu(n.locale);t.label=i,t.withText=!0,o=t}return o}_getBalloonPanelPositionData(t,e){const n=this.editor,o=n.editing,i=o.view.domConverter,r=o.mapper;return{target:()=>{let e=t.getRange();"$graveyard"==e.start.root.rootName&&(e=n.model.document.selection.getFirstRange());const o=r.toViewRange(e);return No.getDomRangeRects(i.viewRangeToDom(o)).pop()},limiter:()=>{const t=this.editor.editing.view,e=t.document.selection.editableElement;return e?t.domConverter.mapViewToDom(e.root):null},positions:BE(e)}}}function BE(t){const e={caret_se:t=>({top:t.bottom+3,left:t.right,name:"caret_se",config:{withArrow:!1}}),caret_ne:(t,e)=>({top:t.top-e.height-3,left:t.right,name:"caret_ne",config:{withArrow:!1}}),caret_sw:(t,e)=>({top:t.bottom+3,left:t.right-e.width,name:"caret_sw",config:{withArrow:!1}}),caret_nw:(t,e)=>({top:t.top-e.height-3,left:t.right-e.width,name:"caret_nw",config:{withArrow:!1}})};return Object.prototype.hasOwnProperty.call(e,t)?[e[t]]:[e.caret_se,e.caret_sw,e.caret_ne,e.caret_nw]}function IE(t,e){let n;for(const o of t){const t=e.lastIndexOf(o.marker);t>0&&!e.substring(t-1).match(o.pattern)||(!n||t>=n.position)&&(n={marker:o.marker,position:t,minimumCharacters:o.minimumCharacters,pattern:o.pattern})}return n}function PE(t,e){const n=0==e?"*":`{${e},}`,o=i.features.isRegExpUnicodePropertySupported?"\\p{Ps}\\p{Pi}\"'":"\\(\\[{\"'";return new RegExp(`(?:^|[= ${o}])([${t}])([^=]${n})$`,"u")}function RE(t){return e=>t.filter((t=>("string"==typeof t?t:String(t.id)).toLowerCase().includes(e.toLowerCase())))}function zE(t){return t&&1==t.length}function VE(t){return t.model.markers.has("mention")}var FE=n(5023),OE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(FE.Z,OE);FE.Z.locals;class NE extends Ii{static get pluginName(){return"IndentEditing"}init(){const t=this.editor;t.commands.add("indent",new Vi(t)),t.commands.add("outdent",new Vi(t))}}const ME='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zM1.632 6.95 5.02 9.358a.4.4 0 0 1-.013.661l-3.39 2.207A.4.4 0 0 1 1 11.892V7.275a.4.4 0 0 1 .632-.326z"/></svg>',LE='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zm1.618-9.55L.98 9.358a.4.4 0 0 0 .013.661l3.39 2.207A.4.4 0 0 0 5 11.892V7.275a.4.4 0 0 0-.632-.326z"/></svg>';class HE extends Ii{static get pluginName(){return"IndentUI"}init(){const t=this.editor,e=t.locale,n=t.t,o="ltr"==e.uiLanguageDirection?ME:LE,i="ltr"==e.uiLanguageDirection?LE:ME;this._defineButton("indent",n("Increase indent"),o),this._defineButton("outdent",n("Decrease indent"),i)}_defineButton(t,e,n){const o=this.editor;o.ui.componentFactory.add(t,(i=>{const r=o.commands.get(t),s=new Yu(i);return s.set({label:e,icon:n,tooltip:!0}),s.bind("isOn","isEnabled").to(r,"value","isEnabled"),this.listenTo(s,"execute",(()=>{o.execute(t),o.editing.view.focus()})),s}))}}class qE extends Ri{constructor(t,e){super(t),this._indentBehavior=e}refresh(){const t=this.editor.model,e=vi(t.document.selection.getSelectedBlocks());e&&t.schema.checkAttribute(e,"blockIndent")?this.isEnabled=this._indentBehavior.checkEnabled(e.getAttribute("blockIndent")):this.isEnabled=!1}execute(){const t=this.editor.model,e=function(t){const e=t.document.selection,n=t.schema;return Array.from(e.getSelectedBlocks()).filter((t=>n.checkAttribute(t,"blockIndent")))}(t);t.change((t=>{for(const n of e){const e=n.getAttribute("blockIndent"),o=this._indentBehavior.getNextIndent(e);o?t.setAttribute("blockIndent",o,n):t.removeAttribute("blockIndent",n)}}))}}class WE{constructor(t){this.isForward="forward"===t.direction,this.offset=t.offset,this.unit=t.unit}checkEnabled(t){const e=parseFloat(t||0);return this.isForward||e>0}getNextIndent(t){const e=parseFloat(t||0);if(!(!t||t.endsWith(this.unit)))return this.isForward?this.offset+this.unit:void 0;const n=e+(this.isForward?this.offset:-this.offset);return n>0?n+this.unit:void 0}}class jE{constructor(t){this.isForward="forward"===t.direction,this.classes=t.classes}checkEnabled(t){const e=this.classes.indexOf(t);return this.isForward?e<this.classes.length-1:e>=0}getNextIndent(t){const e=this.classes.indexOf(t),n=this.isForward?1:-1;return this.classes[e+n]}}const UE=["paragraph","heading1","heading2","heading3","heading4","heading5","heading6"];class $E extends Ri{constructor(t){super(t),this.affectsData=!1}execute(){const t=this.editor.model,e=t.document.selection;let n=t.schema.getLimitElement(e);if(e.containsEntireContent(n)||!GE(t.schema,n))do{if(n=n.parent,!n)return}while(!GE(t.schema,n));t.change((t=>{t.setSelection(n,"in")}))}}function GE(t,e){return t.isLimit(e)&&(t.checkChild(e,"$text")||t.checkChild(e,"paragraph"))}const KE=mi("Ctrl+A");class ZE extends Ii{static get pluginName(){return"SelectAllEditing"}init(){const t=this.editor,e=t.editing.view.document;t.commands.add("selectAll",new $E(t)),this.listenTo(e,"keydown",((e,n)=>{gi(n)===KE&&(t.execute("selectAll"),n.preventDefault())}))}}class JE extends Ii{static get pluginName(){return"SelectAllUI"}init(){const t=this.editor;t.ui.componentFactory.add("selectAll",(e=>{const n=t.commands.get("selectAll"),o=new Yu(e),i=e.t;return o.set({label:i("Select all"),icon:'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"><path d="M.75 15.5a.75.75 0 0 1 .75.75V18l.008.09A.5.5 0 0 0 2 18.5h1.75a.75.75 0 1 1 0 1.5H1.5l-.144-.007a1.5 1.5 0 0 1-1.35-1.349L0 18.5v-2.25a.75.75 0 0 1 .75-.75zm18.5 0a.75.75 0 0 1 .75.75v2.25l-.007.144a1.5 1.5 0 0 1-1.349 1.35L18.5 20h-2.25a.75.75 0 1 1 0-1.5H18a.5.5 0 0 0 .492-.41L18.5 18v-1.75a.75.75 0 0 1 .75-.75zm-10.45 3c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm.45-5.5a.75.75 0 1 1 0 1.5h-8.5a.75.75 0 1 1 0-1.5h8.5zM1.3 11c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5H4.75a.75.75 0 1 1 0-1.5h10.5zM1.3 7c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5h-2.5a.75.75 0 1 1 0-1.5h2.5zm-5 0a.75.75 0 1 1 0 1.5h-5.5a.75.75 0 0 1 0-1.5h5.5zm-6.5-5a.75.75 0 0 1 0 1.5H2a.5.5 0 0 0-.492.41L1.5 2v1.75a.75.75 0 0 1-1.5 0V1.5l.007-.144A1.5 1.5 0 0 1 1.356.006L1.5 0h2.25zM18.5 0l.144.007a1.5 1.5 0 0 1 1.35 1.349L20 1.5v2.25a.75.75 0 1 1-1.5 0V2l-.008-.09A.5.5 0 0 0 18 1.5h-1.75a.75.75 0 1 1 0-1.5h2.25zM8.8 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6z"/></svg>',keystroke:"Ctrl+A",tooltip:!0}),o.bind("isEnabled").to(n,"isEnabled"),this.listenTo(o,"execute",(()=>{t.execute("selectAll"),t.editing.view.focus()})),o}))}}class YE extends Ii{static get requires(){return[ZE,JE]}static get pluginName(){return"SelectAll"}}class QE extends Ri{refresh(){const t=this.editor.model,e=t.schema,n=t.document.selection;this.isEnabled=function(t,e,n){const o=function(t,e){const n=fb(t,e).start.parent;if(n.isEmpty&&!n.is("element","$root"))return n.parent;return n}(t,n);return e.checkChild(o,"horizontalLine")}(n,e,t)}execute(){const t=this.editor.model;t.change((e=>{const n=e.createElement("horizontalLine");t.insertObject(n,null,null,{setSelection:"after"})}))}}var XE=n(2974),tT={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(XE.Z,tT);XE.Z.locals;class eT extends Ii{static get pluginName(){return"HorizontalLineEditing"}init(){const t=this.editor,e=t.model.schema,n=t.t,o=t.conversion;e.register("horizontalLine",{inheritAllFrom:"$blockObject"}),o.for("dataDowncast").elementToElement({model:"horizontalLine",view:(t,{writer:e})=>e.createEmptyElement("hr")}),o.for("editingDowncast").elementToStructure({model:"horizontalLine",view:(t,{writer:e})=>{const o=n("Horizontal line"),i=e.createContainerElement("div",null,e.createEmptyElement("hr"));return e.addClass("ck-horizontal-line",i),e.setCustomProperty("hr",!0,i),function(t,e,n){return e.setCustomProperty("horizontalLine",!0,t),hb(t,e,{label:n})}(i,e,o)}}),o.for("upcast").elementToElement({view:"hr",model:"horizontalLine"}),t.commands.add("horizontalLine",new QE(t))}}class nT extends Ii{static get pluginName(){return"HorizontalLineUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("horizontalLine",(n=>{const o=t.commands.get("horizontalLine"),i=new Yu(n);return i.set({label:e("Horizontal line"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2 9h16v2H2z"/></svg>',tooltip:!0}),i.bind("isEnabled").to(o,"isEnabled"),this.listenTo(i,"execute",(()=>{t.execute("horizontalLine"),t.editing.view.focus()})),i}))}}class oT extends Ri{constructor(t){super(t),this._stack=[],this._createdBatches=new WeakSet,this.refresh(),this.listenTo(t.data,"set",((t,e)=>{e[1]={...e[1]};const n=e[1];n.batchType||(n.batchType={isUndoable:!1})}),{priority:"high"}),this.listenTo(t.data,"set",((t,e)=>{e[1].batchType.isUndoable||this.clearStack()}))}refresh(){this.isEnabled=this._stack.length>0}addBatch(t){const e=this.editor.model.document.selection,n={ranges:e.hasOwnRange?Array.from(e.getRanges()):[],isBackward:e.isBackward};this._stack.push({batch:t,selection:n}),this.refresh()}clearStack(){this._stack=[],this.refresh()}_restoreSelection(t,e,n){const o=this.editor.model,i=o.document,r=[],s=t.map((t=>t.getTransformedByOperations(n))),a=s.flat();for(const t of s){const e=t.filter((t=>t.root!=i.graveyard)).filter((t=>!rT(t,a)));e.length&&(iT(e),r.push(e[0]))}r.length&&o.change((t=>{t.setSelection(r,{backward:e})}))}_undo(t,e){const n=this.editor.model,o=n.document;this._createdBatches.add(e);const i=t.operations.slice().filter((t=>t.isDocumentOperation));i.reverse();for(const t of i){const i=t.baseVersion+1,r=Array.from(o.history.getOperations(i)),s=ld([t.getReversed()],r,{useRelations:!0,document:this.editor.model.document,padWithNoOps:!1,forceWeakRemove:!0}).operationsA;for(const i of s)e.addOperation(i),n.applyOperation(i),o.history.setOperationAsUndone(t,i)}}}function iT(t){t.sort(((t,e)=>t.start.isBefore(e.start)?-1:1));for(let e=1;e<t.length;e++){const n=t[e-1].getJoined(t[e],!0);n&&(e--,t.splice(e,2,n))}}function rT(t,e){return e.some((e=>e!==t&&e.containsRange(t,!0)))}class sT extends oT{execute(t=null){const e=t?this._stack.findIndex((e=>e.batch==t)):this._stack.length-1,n=this._stack.splice(e,1)[0],o=this.editor.model.createBatch({isUndo:!0});this.editor.model.enqueueChange(o,(()=>{this._undo(n.batch,o);const t=this.editor.model.document.history.getOperations(n.batch.baseVersion);this._restoreSelection(n.selection.ranges,n.selection.isBackward,t),this.fire("revert",n.batch,o)})),this.refresh()}}class aT extends oT{execute(){const t=this._stack.pop(),e=this.editor.model.createBatch({isUndo:!0});this.editor.model.enqueueChange(e,(()=>{const n=t.batch.operations[t.batch.operations.length-1].baseVersion+1,o=this.editor.model.document.history.getOperations(n);this._restoreSelection(t.selection.ranges,t.selection.isBackward,o),this._undo(t.batch,e)})),this.refresh()}}class lT extends Ii{constructor(t){super(t),this._batchRegistry=new WeakSet}static get pluginName(){return"UndoEditing"}init(){const t=this.editor;this._undoCommand=new sT(t),this._redoCommand=new aT(t),t.commands.add("undo",this._undoCommand),t.commands.add("redo",this._redoCommand),this.listenTo(t.model,"applyOperation",((t,e)=>{const n=e[0];if(!n.isDocumentOperation)return;const o=n.batch,i=this._redoCommand._createdBatches.has(o),r=this._undoCommand._createdBatches.has(o);this._batchRegistry.has(o)||(this._batchRegistry.add(o),o.isUndoable&&(i?this._undoCommand.addBatch(o):r||(this._undoCommand.addBatch(o),this._redoCommand.clearStack())))}),{priority:"highest"}),this.listenTo(this._undoCommand,"revert",((t,e,n)=>{this._redoCommand.addBatch(n)})),t.keystrokes.set("CTRL+Z","undo"),t.keystrokes.set("CTRL+Y","redo"),t.keystrokes.set("CTRL+SHIFT+Z","redo")}}const cT='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m5.042 9.367 2.189 1.837a.75.75 0 0 1-.965 1.149l-3.788-3.18a.747.747 0 0 1-.21-.284.75.75 0 0 1 .17-.945L6.23 4.762a.75.75 0 1 1 .964 1.15L4.863 7.866h8.917A.75.75 0 0 1 14 7.9a4 4 0 1 1-1.477 7.718l.344-1.489a2.5 2.5 0 1 0 1.094-4.73l.008-.032H5.042z"/></svg>',dT='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m14.958 9.367-2.189 1.837a.75.75 0 0 0 .965 1.149l3.788-3.18a.747.747 0 0 0 .21-.284.75.75 0 0 0-.17-.945L13.77 4.762a.75.75 0 1 0-.964 1.15l2.331 1.955H6.22A.75.75 0 0 0 6 7.9a4 4 0 1 0 1.477 7.718l-.344-1.489A2.5 2.5 0 1 1 6.039 9.4l-.008-.032h8.927z"/></svg>';class hT extends Ii{static get pluginName(){return"UndoUI"}init(){const t=this.editor,e=t.locale,n=t.t,o="ltr"==e.uiLanguageDirection?cT:dT,i="ltr"==e.uiLanguageDirection?dT:cT;this._addButton("undo",n("Undo"),"CTRL+Z",o),this._addButton("redo",n("Redo"),"CTRL+Y",i)}_addButton(t,e,n,o){const i=this.editor;i.ui.componentFactory.add(t,(r=>{const s=i.commands.get(t),a=new Yu(r);return a.set({label:e,icon:o,keystroke:n,tooltip:!0}),a.bind("isEnabled").to(s,"isEnabled"),this.listenTo(a,"execute",(()=>{i.execute(t),i.editing.view.focus()})),a}))}}class uT extends Ii{static get requires(){return[lT,hT]}static get pluginName(){return"Undo"}}const gT="removeFormat";class mT extends Ii{static get pluginName(){return"RemoveFormatUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(gT,(n=>{const o=t.commands.get(gT),i=new Yu(n);return i.set({label:e("Remove Format"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M8.69 14.915c.053.052.173.083.36.093a.366.366 0 0 1 .345.485l-.003.01a.738.738 0 0 1-.697.497h-2.67a.374.374 0 0 1-.353-.496l.013-.038a.681.681 0 0 1 .644-.458c.197-.012.325-.043.386-.093a.28.28 0 0 0 .072-.11L9.592 4.5H6.269c-.359-.017-.609.013-.75.09-.142.078-.289.265-.442.563-.192.29-.516.464-.864.464H4.17a.43.43 0 0 1-.407-.569L4.46 3h13.08l-.62 2.043a.81.81 0 0 1-.775.574h-.114a.486.486 0 0 1-.486-.486c.001-.284-.054-.464-.167-.54-.112-.076-.367-.106-.766-.091h-3.28l-2.68 10.257c-.006.074.007.127.038.158zM3 17h8a.5.5 0 1 1 0 1H3a.5.5 0 1 1 0-1zm11.299 1.17a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.06-1.06l1.415 1.414 1.414-1.415a.75.75 0 1 1 1.06 1.06l-1.413 1.415 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414-1.414 1.414z"/></svg>',tooltip:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(gT),t.editing.view.focus()})),i}))}}class pT extends Ri{refresh(){const t=this.editor.model;this.isEnabled=!!vi(this._getFormattingItems(t.document.selection,t.schema))}execute(){const t=this.editor.model,e=t.schema;t.change((n=>{for(const o of this._getFormattingItems(t.document.selection,e))if(o.is("selection"))for(const t of this._getFormattingAttributes(o,e))n.removeSelectionAttribute(t);else{const t=n.createRangeOn(o);for(const i of this._getFormattingAttributes(o,e))n.removeAttribute(i,t)}}))}*_getFormattingItems(t,e){const n=t=>!!vi(this._getFormattingAttributes(t,e));for(const o of t.getRanges())for(const t of o.getItems())!e.isBlock(t)&&n(t)&&(yield t);for(const e of t.getSelectedBlocks())n(e)&&(yield e);n(t)&&(yield t)}*_getFormattingAttributes(t,e){for(const[n]of t.getAttributes()){const t=e.getAttributeProperties(n);t&&t.isFormatting&&(yield n)}}}class fT extends Ii{static get pluginName(){return"RemoveFormatEditing"}init(){const t=this.editor;t.commands.add("removeFormat",new pT(t))}}class bT extends Ri{execute(t){const{model:e}=this.editor,{document:n}=e,{selection:o}=n,{mention:i}=t,r=t.range||o.getFirstRange();if(i.id.startsWith("#")||i.id.startsWith("~"))e.change((t=>{e.insertContent(t.createText(i.id,{}),r)}));else if("create-note"===i.action){const t=this.editor.editing.view.getDomRoot();glob.getComponentByEl(t).createNoteForReferenceLink(i.noteTitle).then((t=>{this.insertReference(r,t)}))}else this.insertReference(r,t.mention.notePath)}insertReference(t,e){const{model:n}=this.editor;n.change((o=>{n.insertContent(o.createText("",{}),t),this.editor.execute("referenceLink",{notePath:e})}))}}class kT{constructor(t){this.loader=t}upload(){return this.loader.file.then((t=>new Promise(((e,n)=>{this._initRequest().then((()=>{this._initListeners(e,n,t),this._sendRequest(t)}))}))))}abort(){this.xhr&&this.xhr.abort()}_initRequest(){return glob.getHeaders().then((t=>{const e=this.xhr=new XMLHttpRequest,{noteId:n}=glob.getActiveTabNote(),o="api/images?noteId="+n;e.open("POST",o,!0),e.responseType="json";for(const n in t)e.setRequestHeader(n,t[n])}))}async _initListeners(t,e){const n=this.xhr,o=this.loader,i=`Cannot upload file: ${(await o.file).name}.`;n.addEventListener("error",(()=>e(i))),n.addEventListener("abort",(()=>e())),n.addEventListener("load",(()=>{const o=n.response;if(!o||!o.uploaded)return e(o&&o.error&&o.error.message?o.error.message:i);t({default:o.url})})),n.upload&&n.upload.addEventListener("progress",(t=>{t.lengthComputable&&(o.uploadTotal=t.total,o.uploaded=t.loaded)}))}async _sendRequest(){const t=new FormData;t.append("upload",await this.loader.file),this.xhr.send(t)}}class wT extends Ii{init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("includeNote",(n=>{const o=t.commands.get("insertIncludeNote"),i=new Yu(n);return i.set({label:e("Include note"),icon:'<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path d="M19,3H5C3.897,3,3,3.897,3,5v14c0,1.103,0.897,2,2,2h8c0.131,0,0.26-0.026,0.381-0.076s0.232-0.123,0.326-0.217l7-7 c0.086-0.086,0.147-0.187,0.196-0.293c0.014-0.03,0.022-0.061,0.033-0.093c0.028-0.084,0.046-0.17,0.051-0.259 C20.989,13.041,21,13.021,21,13V5C21,3.897,20.103,3,19,3z M5,5h14v7h-6c-0.553,0-1,0.448-1,1v6H5V5z M14,17.586V14h3.586 L14,17.586z"/></svg>',tooltip:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>t.execute("insertIncludeNote"))),i}))}}class _T extends Ii{static get requires(){return[Rb]}init(){this._defineSchema(),this._defineConverters(),this.editor.commands.add("insertIncludeNote",new AT(this.editor))}_defineSchema(){this.editor.model.schema.register("includeNote",{isObject:!0,allowAttributes:["noteId","boxSize"],allowWhere:"$block"})}_defineConverters(){const t=this.editor,e=t.conversion;e.for("upcast").elementToElement({model:(t,{writer:e})=>e.createElement("includeNote",{noteId:t.getAttribute("data-note-id"),boxSize:t.getAttribute("data-box-size")}),view:{name:"section",classes:"include-note"}}),e.for("dataDowncast").elementToElement({model:"includeNote",view:(t,{writer:e})=>e.createContainerElement("section",{class:"include-note","data-note-id":t.getAttribute("noteId"),"data-box-size":t.getAttribute("boxSize")})}),e.for("editingDowncast").elementToElement({model:"includeNote",view:(e,{writer:n})=>{const o=e.getAttribute("noteId"),i=e.getAttribute("boxSize"),r=n.createContainerElement("section",{class:"include-note box-size-"+i,"data-note-id":o,"data-box-size":i}),s=n.createUIElement("div",{class:"include-note-wrapper"},(function(e){const n=this.toDomElement(e),i=t.editing.view.getDomRoot();return glob.getComponentByEl(i).loadIncludedNote(o,$(n)),function(t,e){function n(t){t.stopPropagation(),e.editing.view._renderer.isFocused=!1}t.addEventListener("mousedown",n,{capture:!0}),t.addEventListener("focus",n,{capture:!0}),t.addEventListener("keydown",n,{capture:!0})}(n,t),n}));return n.insert(n.createPositionAt(r,0),s),hb(r,n,{label:"include note widget"})}})}}class AT extends Ri{execute(){const t=this.editor.editing.view.getDomRoot();glob.getComponentByEl(t).triggerCommand("addIncludeNoteToText")}refresh(){const t=this.editor.model,e=t.document.selection,n=t.schema.findAllowedParent(e.getFirstPosition(),"includeNote");this.isEnabled=null!==n}}class CT extends Ri{execute({notePath:t}){if(!t||!t.trim())return;const e=this.editor,n=t.split("/").pop();glob.treeCache.getNote(n,!0).then((()=>{e.model.change((n=>{const o=n.createElement("reference",{notePath:t});e.model.insertContent(o),n.setSelection(o,"after")}))}))}refresh(){const t=this.editor.model,e=t.document.selection;this.isEnabled=t.schema.checkChild(e.focus.parent,"reference")}}class vT extends Ii{static get requires(){return[Rb]}init(){this._defineSchema(),this._defineConverters(),this.editor.commands.add("referenceLink",new CT(this.editor)),this.editor.editing.mapper.on("viewToModelPosition",bb(this.editor.model,(t=>t.hasClass("reference-link"))))}_defineSchema(){this.editor.model.schema.register("reference",{allowWhere:"$text",isInline:!0,isObject:!0,allowAttributes:["notePath"]})}_defineConverters(){const t=this.editor,e=t.conversion;e.for("upcast").elementToElement({view:{name:"a",classes:["reference-link"]},model:(t,{writer:e})=>{let n=t.getAttribute("data-note-path");return n||(n=t.getAttribute("href")),e.createElement("reference",{notePath:n})}}),e.for("editingDowncast").elementToElement({model:"reference",view:(e,{writer:n})=>{let o=e.getAttribute("notePath");o||(o=e.getAttribute("href"));const i=n.createContainerElement("a",{href:"javascript:",class:"reference-link","data-note-path":o},{renderUnsafeAttributes:["href"]}),r=n.createUIElement("span",{},(function(e){const n=this.toDomElement(e),i=o.split("/").pop(),r=t.editing.view.getDomRoot();return glob.getComponentByEl(r).loadReferenceLinkTitle(i,$(n)),n}));return n.insert(n.createPositionAt(i,0),r),hb(i,n)}}),e.for("dataDowncast").elementToElement({model:"reference",view:(t,{writer:e})=>{let n=t.getAttribute("notePath");n||(n=t.getAttribute("href"));const o=e.createContainerElement("a",{href:"#"+n,class:"reference-link","data-note-path":n}),i=n.split("/").pop(),r=glob.treeCache.getNoteFromCache(i);if(r){const t=e.createText(r.title);e.insert(e.createPositionAt(o,0),t)}return o}})}}function yT(t){return t.match(/^(\\\[.*?\\\]|\\\(.*?\\\))$/)}function xT(t){const e=(t=t.trim()).includes("\\(")&&t.includes("\\)"),n=t.includes("\\[")&&t.includes("\\]");return(e||n)&&(t=t.substring(2,t.length-2).trim()),{equation:t,display:n}}async function ET(t,e,n="katex",o,i=!1,r=!1,s,a=[],l={}){if("mathjax"===n&&"undefined"!=typeof MathJax)!function(t){return t&&"string"==typeof t&&3===t.split(".").length&&"3"===t.split(".")[0]}(MathJax.version)?DT(e,r,s,a,(n=>{Po.window.setTimeout((()=>{!function(t,e,n){e.innerHTML=n?"\\["+t+"\\]":"\\("+t+"\\)";MathJax.Hub.Queue(["Typeset",MathJax.Hub,e])}(t,n,i),r&&MathJax.Hub.Queue((()=>{ST(e,n),n.style.visibility="visible"}))}))})):DT(e,r,s,a,(n=>{!function(t,e,n,o){let i;void 0!==MathJax.tex2chtmlPromise?i=MathJax.tex2chtmlPromise:void 0!==MathJax.tex2svgPromise&&(i=MathJax.tex2svgPromise);void 0!==i&&i(t,{display:n}).then((t=>{e.firstChild&&e.removeChild(e.firstChild),e.appendChild(t),o()}))}(t,n,i,(()=>{r&&(ST(e,n),n.style.visibility="visible")}))}));else if("katex"===n&&"undefined"!=typeof katex)DT(e,r,s,a,(n=>{katex.render(t,n,{throwOnError:!1,displayMode:i,...l}),r&&(ST(e,n),n.style.visibility="visible")}));else if("function"==typeof n)n(t,e,i);else if(void 0!==o)try{Po.window.CKEDITOR_MATH_LAZY_LOAD||(Po.window.CKEDITOR_MATH_LAZY_LOAD=o()),e.innerHTML=t,await Po.window.CKEDITOR_MATH_LAZY_LOAD,ET(t,e,n,void 0,i,r,s,a,l)}catch(n){e.innerHTML=t,console.error(`math-tex-typesetting-lazy-load-failed: Lazy load failed: ${n}`)}else e.innerHTML=t,console.warn(`math-tex-typesetting-missing: Missing the mathematical typesetting engine (${n}) for tex.`)}function TT(t){const e=t.editing.view,n=xu.defaultPositions,o=e.document.selection.getSelectedElement();if(o)return{target:e.domConverter.viewToDom(o),positions:[n.southArrowNorth,n.southArrowNorthWest,n.southArrowNorthEast]};{const t=e.document;return{target:e.domConverter.viewRangeToDom(t.selection.getFirstRange()),positions:[n.southArrowNorth,n.southArrowNorthWest,n.southArrowNorthEast]}}}function DT(t,e,n,o,i){e?function(t,e,n,o){const i=function(t,e,n){let o=Po.document.getElementById(e);if(!o){o=Po.document.createElement("div"),o.setAttribute("id",e),o.classList.add(...n),o.style.visibility="hidden",Po.document.body.appendChild(o);let i=!1;const r=()=>{i||(Po.window.requestAnimationFrame((()=>{BT(t,o),i=!1})),i=!0)};Po.window.addEventListener("resize",r),Po.window.addEventListener("scroll",r)}return o}(t,e,n);o(i)}(t,n,o,(t=>{i(t)})):i(t)}function ST(t,e){BT(t,e);const n=e.getBoundingClientRect();t.style.width=n.width+"px",t.style.height=n.height+"px"}function BT(t,e){const n=t.getBoundingClientRect(),o=Po.window.scrollX+n.left,i=Po.window.scrollY+n.top;e.style.position="absolute",e.style.left=o+"px",e.style.top=i+"px",e.style.zIndex="var(--ck-z-modal)",e.style.pointerEvents="none"}var IT=n(2053),PT={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(IT.Z,PT);IT.Z.locals;class RT extends _u{constructor(t,e){super(t);const n=`ck-input-${m()}`,o=`ck-status-${m()}`;this.set("label",void 0),this.set("value",void 0),this.set("isReadOnly",!1),this.set("errorText",null),this.set("infoText",null),this.labelView=this._createLabelView(n),this.inputView=this._createInputView(e,n,o),this.statusView=this._createStatusView(o),this.bind("_statusText").to(this,"errorText",this,"infoText",((t,e)=>t||e));const i=this.bindTemplate;this.setTemplate({tag:"div",attributes:{class:["ck","ck-labeled-input",i.if("isReadOnly","ck-disabled")]},children:[this.labelView,this.inputView,this.statusView]})}_createLabelView(t){const e=new Kg(this.locale);return e.for=t,e.bind("text").to(this,"label"),e}_createInputView(t,e,n){const o=new t(this.locale,n);return o.id=e,o.ariaDescribedById=n,o.bind("value").to(this),o.bind("isReadOnly").to(this),o.bind("hasError").to(this,"errorText",(t=>!!t)),o.on("input",(()=>{this.errorText=null})),o}_createStatusView(t){const e=new _u(this.locale),n=this.bindTemplate;return e.setTemplate({tag:"div",attributes:{class:["ck","ck-labeled-input__status",n.if("errorText","ck-labeled-input__status_error"),n.if("_statusText","ck-hidden",(t=>!t))],id:t,role:n.if("errorText","alert")},children:[{text:n.to("_statusText")}]}),e}select(){this.inputView.select()}focus(){this.inputView.focus()}}class zT extends _u{constructor(t,e,n,o,i,r){super(n),this.engine=t,this.lazyLoad=e,this.previewUid=o,this.katexRenderOptions=r,this.set("value",""),this.set("display",!1),this.on("change",(()=>{this.isRendered&&this.updateMath()})),this.setTemplate({tag:"div",attributes:{class:["ck","ck-math-preview"]}})}updateMath(){ET(this.value,this.element,this.engine,this.lazyLoad,this.display,!0,this.previewUid,this.previewClassName,this.katexRenderOptions)}render(){super.render(),this.updateMath()}}var VT=n(4722),FT={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};Li()(VT.Z,FT);VT.Z.locals;class OT extends _u{constructor(t,e,n,o,i,r,s,a){super(t);const l=t.t;this._createKeyAndFocusTrackers(),this.saveButtonView=this._createButton(l("Save"),Mu,"ck-button-save",null),this.saveButtonView.type="submit",this.mathInputView=this._createMathInput(),this.displayButtonView=this._createDisplayButton(),this.cancelButtonView=this._createButton(l("Cancel"),Nu,"ck-button-cancel","cancel"),this.previewEnabled=o;let c=[];this.previewEnabled?(this.previewLabel=new Kg(t),this.previewLabel.text=l("Equation preview"),this.mathView=new zT(e,n,t,i,r,a),this.mathView.bind("display").to(this.displayButtonView,"isOn"),c=[this.mathInputView,this.displayButtonView,this.previewLabel,this.mathView]):c=[this.mathInputView,this.displayButtonView],this.setTemplate({tag:"form",attributes:{class:["ck","ck-math-form",...s],tabindex:"-1",spellcheck:"false"},children:[{tag:"div",attributes:{class:["ck-math-view"]},children:c},this.saveButtonView,this.cancelButtonView]})}render(){super.render(),Wu({view:this});[this.mathInputView,this.displayButtonView,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}get equation(){return this.mathInputView.inputView.element.value}set equation(t){this.mathInputView.inputView.element.value=t,this.previewEnabled&&(this.mathView.value=t)}_createKeyAndFocusTrackers(){this.focusTracker=new yi,this.keystrokes=new xi,this._focusables=new Jh,this._focusCycler=new bg({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}})}_createMathInput(){const t=this.locale.t,e=new RT(this.locale,om),n=e.inputView;e.infoText=t("Insert equation in TeX format.");const o=()=>{if(null!=n.element){let t=n.element.value.trim();if(yT(t)){const e=xT(t);n.element.value=e.equation,t=e.equation,this.displayButtonView.isOn=e.display}this.previewEnabled&&(this.mathView.value=t),this.saveButtonView.isEnabled=!!t}};return n.on("render",o),n.on("input",o),e}_createButton(t,e,n,o){const i=new Yu(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}_createDisplayButton(){const t=this.locale.t,e=new tg(this.locale);return e.set({label:t("Display mode"),withText:!0}),e.extendTemplate({attributes:{class:"ck-button-display-toggle"}}),e.on("execute",(()=>{e.isOn=!e.isOn,this.previewEnabled&&(this.mathView.display=e.isOn)})),e}}class NT extends Ri{execute(t,e,n,o){const i=this.editor.model,r=i.document.selection.getSelectedElement();i.change((s=>{let a;if(r&&(r.is("element","mathtex-inline")||r.is("element","mathtex-display"))){const i=r.getAttribute("type"),l=o?n:i||n;a=s.createElement(e?"mathtex-display":"mathtex-inline",{equation:t,type:l,display:e})}else a=s.createElement(e?"mathtex-display":"mathtex-inline",{equation:t,type:n,display:e});i.insertContent(a)}))}refresh(){const t=this.editor.model.document.selection,e=t.getSelectedElement();this.isEnabled=null===e||e.is("element","mathtex-inline")||e.is("element","mathtex-display");const n=function(t){const e=t.getSelectedElement();return e&&(e.is("element","mathtex-inline")||e.is("element","mathtex-display"))?e:null}(t);this.value=n?n.getAttribute("equation"):null,this.display=n?n.getAttribute("display"):null}}class MT extends Ii{static get requires(){return[Rb]}static get pluginName(){return"MathEditing"}init(){const t=this.editor;t.commands.add("math",new NT(t)),this._defineSchema(),this._defineConverters(),t.editing.mapper.on("viewToModelPosition",bb(t.model,(t=>t.hasClass("math")))),t.config.define("math",{engine:"mathjax",outputType:"script",forceOutputType:!1,enablePreview:!0,previewClassName:[],popupClassName:[],katexRenderOptions:{}})}_defineSchema(){const t=this.editor.model.schema;t.register("mathtex-inline",{allowWhere:"$text",isInline:!0,isObject:!0,allowAttributes:["equation","type","display"]}),t.register("mathtex-display",{allowWhere:"$block",isInline:!1,isObject:!0,allowAttributes:["equation","type","display"]})}_defineConverters(){const t=this.editor.conversion,e=this.editor.config.get("math");function n(t,n){const o=t.getAttribute("equation"),i=t.getAttribute("display"),r="user-select: none; "+(i?"":"display: inline-block;"),s="ck-math-tex "+(i?"ck-math-tex-display":"ck-math-tex-inline"),a=n.createContainerElement(i?"div":"span",{style:r,class:s}),l=n.createUIElement("div",null,(function(t){const n=this.toDomElement(t);return ET(o,n,e.engine,e.lazyLoad,i,!1,e.previewClassName,null,e.katexRenderOptions),n}));return n.insert(n.createPositionAt(a,0),l),a}function o(t,{writer:e}){const n=t.getAttribute("equation"),o=t.getAttribute("type"),i=t.getAttribute("display");if("span"===o){const t=e.createContainerElement("span",{class:"math-tex"});return i?e.insert(e.createPositionAt(t,0),e.createText("\\["+n+"\\]")):e.insert(e.createPositionAt(t,0),e.createText("\\("+n+"\\)")),t}{const t=e.createContainerElement("script",{type:i?"math/tex; mode=display":"math/tex"});return e.insert(e.createPositionAt(t,0),e.createText(n)),t}}t.for("upcast").elementToElement({view:{name:"script",attributes:{type:"math/tex"}},model:(t,{writer:n})=>{const o=t.getChild(0).data.trim();return n.createElement("mathtex-inline",{equation:o,type:e.forceOutputType?e.outputType:"script",display:!1})}}).elementToElement({view:{name:"script",attributes:{type:"math/tex; mode=display"}},model:(t,{writer:n})=>{const o=t.getChild(0).data.trim();return n.createElement("mathtex-display",{equation:o,type:e.forceOutputType?e.outputType:"script",display:!0})}}).elementToElement({view:{name:"span",classes:["math-tex"]},model:(t,{writer:n})=>{const o=t.getChild(0).data.trim(),i=Object.assign(xT(o),{type:e.forceOutputType?e.outputType:"span"});return n.createElement(i.display?"mathtex-display":"mathtex-inline",i)}}).elementToElement({view:{name:"span",classes:["ql-formula"]},model:(t,{writer:n})=>{const o=t.getAttribute("data-value").trim();return n.createElement("mathtex-inline",{equation:o,type:e.forceOutputType?e.outputType:"script",display:!1})}}),t.for("editingDowncast").elementToElement({model:"mathtex-inline",view:(t,{writer:e})=>hb(n(t,e),e,"span")}).elementToElement({model:"mathtex-display",view:(t,{writer:e})=>hb(n(t,e),e,"div")}),t.for("dataDowncast").elementToElement({model:"mathtex-inline",view:o}).elementToElement({model:"mathtex-display",view:o})}}const LT="Ctrl+M";class HT extends Ii{static get requires(){return[wm,MT]}static get pluginName(){return"MathUI"}init(){const t=this.editor;t.editing.view.addObserver(oh),this._previewUid=`math-preview-${m()}`,this.formView=this._createFormView(),this._balloon=t.plugins.get(wm),this._createToolbarMathButton(),this._enableUserBalloonInteractions()}destroy(){super.destroy(),this.formView.destroy();const t=Po.document.getElementById(this._previewUid);t&&t.parentNode.removeChild(t)}_showUI(){this.editor.commands.get("math").isEnabled&&(this._addFormView(),this._balloon.showStack("main"))}_createFormView(){const t=this.editor,e=t.commands.get("math"),n=t.config.get("math"),o=new OT(t.locale,n.engine,n.lazyLoad,n.enablePreview,this._previewUid,n.previewClassName,n.popupClassName,n.katexRenderOptions);return o.mathInputView.bind("value").to(e,"value"),o.displayButtonView.bind("isOn").to(e,"display"),o.mathInputView.bind("isReadOnly").to(e,"isEnabled",(t=>!t)),o.saveButtonView.bind("isEnabled").to(e),o.displayButtonView.bind("isEnabled").to(e),this.listenTo(o,"submit",(()=>{t.execute("math",o.equation,o.displayButtonView.isOn,n.outputType,n.forceOutputType),this._closeFormView()})),this.listenTo(o,"cancel",(()=>{this._closeFormView()})),o.keystrokes.set("esc",((t,e)=>{this._closeFormView(),e()})),o}_addFormView(){if(this._isFormInPanel)return;const t=this.editor,e=t.commands.get("math");this._balloon.add({view:this.formView,position:TT(t)}),this._balloon.visibleView===this.formView&&this.formView.mathInputView.select();Po.document.getElementById(this._previewUid)&&this.formView.previewEnabled&&this.formView.mathView.updateMath(),this.formView.equation=e.value||"",this.formView.displayButtonView.isOn=e.display||!1}_hideUI(){if(!this._isFormInPanel)return;const t=this.editor;this.stopListening(t.ui,"update"),this.stopListening(this._balloon,"change:visibleView"),t.editing.view.focus(),this._removeFormView()}_closeFormView(){void 0!==this.editor.commands.get("math").value?this._removeFormView():this._hideUI()}_removeFormView(){if(this._isFormInPanel){this.formView.saveButtonView.focus(),this._balloon.remove(this.formView);const t=Po.document.getElementById(this._previewUid);t&&(t.style.visibility="hidden"),this.editor.editing.view.focus()}}_createToolbarMathButton(){const t=this.editor,e=t.commands.get("math"),n=t.t;t.keystrokes.set(LT,((t,n)=>{n(),e.isEnabled&&this._showUI()})),this.editor.ui.componentFactory.add("math",(t=>{const o=new Yu(t);return o.isEnabled=!0,o.label=n("Insert math"),o.icon='<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 15.44 10.78" height="40.74" width="58.35"><path d="M8.15 0c-.06 0-.1.02-.11.03a.12.12 0 0 0-.02.01 6.81 6.81 0 0 0-2.32 4.9v.9a6.82 6.82 0 0 0 2.32 4.9.12.12 0 0 0 .02 0c.02.02.06.04.11.04.07 0 .12-.03.16-.07a.22.22 0 0 0 0-.32.12.12 0 0 0-.02-.02A4.4 4.4 0 0 1 7 8.44a7.62 7.62 0 0 1-.5-2.6v-.9c0-.82.19-1.76.5-2.6A4.4 4.4 0 0 1 8.3.42.12.12 0 0 0 8.3.39a.22.22 0 0 0 .08-.16.22.22 0 0 0-.07-.16.22.22 0 0 0-.16-.07zm4.83 0a.22.22 0 0 0-.16.07.22.22 0 0 0-.07.16c0 .08.05.13.08.16a.12.12 0 0 0 .01.02c.52.39.98 1.1 1.3 1.94.3.83.49 1.77.49 2.6v.88c0 .83-.18 1.78-.5 2.6a4.4 4.4 0 0 1-1.29 1.95.22.22 0 0 0-.01.33c.03.04.08.07.15.07.05 0 .09-.02.12-.03a.12.12 0 0 0 .02-.01 6.82 6.82 0 0 0 2.32-4.9v-.9a6.81 6.81 0 0 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.18-.04.05-.05.07-.1.08-.17v.02c.35-1.09 1-1.3 1.3-1.3.09 0 .2.01.29.09.09.07.17.2.17.5 0 .27-.18 1-.57 2.48a1.8 1.8 0 0 1-.37.75.7.7 0 0 1-.52.26c-.04 0-.13 0-.22-.03a.68.68 0 0 0 .3-.56.47.47 0 0 0-.18-.39.55.55 0 0 0-.32-.1c-.4 0-.7.33-.7.74 0 .28.16.5.38.63.21.13.48.18.73.18.39 0 .69-.2.89-.41.09-.1.15-.19.2-.27.2.36.59.68 1.16.68.6 0 1.05-.37 1.35-.76.15-.2.27-.4.34-.57.08-.18.12-.3.12-.42a.24.24 0 0 0-.11-.2c-.06-.03-.12-.02-.13-.02a.26.26 0 0 0-.18.06c-.05.05-.06.1-.07.14-.34 1.1-1.02 1.3-1.3 1.3-.17 0-.27-.06-.35-.17a.72.72 0 0 1-.11-.4c0-.22.06-.45.18-.91l.36-1.45c.03-.14.1-.44.25-.7.15-.25.36-.46.68-.46.03 0 .12 0 .22.03a.7.7 0 0 0-.32.56c0 .11.04.23.13.33.08.1.22.16.4.16.14 0 .3-.06.44-.18a.73.73 0 0 0 .24-.55c0-.32-.2-.54-.42-.66a1.52 1.52 0 0 0-.68-.16c-.34 0-.62.16-.82.34a1.8 1.8 0 0 0-.3.35 1.32 1.32 0 0 0-.5-.54 1.37 1.37 0 0 0-.63-.15z" style="line-height:1.25;-inkscape-font-specification:\'Latin Modern Math\'" font-weight="400" font-size="10.58" font-family="Latin Modern Math" letter-spacing="-1.06" word-spacing="0"/></svg>\n',o.keystroke=LT,o.tooltip=!0,o.isToggleable=!0,o.bind("isEnabled").to(e,"isEnabled"),this.listenTo(o,"execute",(()=>this._showUI())),o}))}_enableUserBalloonInteractions(){const t=this.editor,e=this.editor.editing.view.document;this.listenTo(e,"click",(()=>{const e=t.commands.get("math");e.value&&e.isEnabled&&this._showUI()})),t.keystrokes.set("Esc",((t,e)=>{this._isUIVisible&&(this._hideUI(),e())})),Hu({emitter:this.formView,activator:()=>this._isFormInPanel,contextElements:[this._balloon.view.element],callback:()=>this._hideUI()})}get _isUIVisible(){return this._balloon.visibleView==this.formView}get _isFormInPanel(){return this._balloon.hasView(this.formView)}}class qT extends Ii{static get requires(){return[bk,uT]}static get pluginName(){return"AutoMath"}constructor(t){super(t),this._timeoutId=null,this._positionToInsert=null}init(){const t=this.editor,e=t.model.document;this.listenTo(t.plugins.get(bk),"inputTransformation",(()=>{const t=e.selection.getFirstRange(),n=pd.fromPosition(t.start);n.stickiness="toPrevious";const o=pd.fromPosition(t.end);o.stickiness="toNext",e.once("change:data",(()=>{this._mathBetweenPositions(n,o),n.detach(),o.detach()}),{priority:"high"})})),t.commands.get("undo").on("execute",(()=>{this._timeoutId&&(Po.window.clearTimeout(this._timeoutId),this._positionToInsert.detach(),this._timeoutId=null,this._positionToInsert=null)}),{priority:"high"})}_mathBetweenPositions(t,e){const n=this.editor,o=this.editor.config.get("math"),i=new Vl(t,e),r=i.getWalker({ignoreElementEnd:!0});let s="";for(const t of r)t.item.is("$textProxy")&&(s+=t.item.data);if(s=s.trim(),!yT(s)||2!==function(t){return t.match(/(\\\[|\\\]|\\\(|\\\))/g).length}(s))return;n.commands.get("math").isEnabled&&(this._positionToInsert=pd.fromPosition(t),this._timeoutId=Po.window.setTimeout((()=>{n.model.change((t=>{let 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requires(){return[Yp,Xp]}static get pluginName(){return"Bold"}},class extends Ii{static get requires(){return[ef,of]}static get pluginName(){return"Italic"}},class extends Ii{static get requires(){return[mf,ff]}static get pluginName(){return"Underline"}},class extends Ii{static get requires(){return[kf,_f]}static get pluginName(){return"Strikethrough"}},class extends Ii{static get requires(){return[Cf,Ef]}static get pluginName(){return"Code"}},class extends Ii{static get requires(){return[sf,lf]}static get pluginName(){return"Superscript"}},class extends Ii{static get requires(){return[df,uf]}static get pluginName(){return"Subscript"}},class extends Ii{static get requires(){return[Hf,jf]}static get pluginName(){return"BlockQuote"}},class extends Ii{static get requires(){return[Xf,ob]}static get pluginName(){return"Heading"}},class extends Ii{static get requires(){return[Tk,Sk]}static get pluginName(){return"Image"}},class extends Ii{static get requires(){return[Pk,Rk]}static get 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t=this.editor;this.listenTo(t.model.document.selection,"change:range",((t,e)=>{e.directChange&&this._hidePanel()})),this.listenTo(t.ui,"update",(()=>this._updateButton())),this.listenTo(t,"change:isReadOnly",(()=>this._updateButton()),{priority:"low"}),this.listenTo(t.ui.focusTracker,"change:isFocused",(()=>this._updateButton())),this.listenTo(this.buttonView,"change:isVisible",((t,e,n)=>{n?this.buttonView.listenTo(window,"resize",(()=>this._updateButton())):(this.buttonView.stopListening(window,"resize"),this._hidePanel())})),t.ui.addToolbar(this.toolbarView,{beforeFocus:()=>this._showPanel(),afterBlur:()=>this._hidePanel()})}afterInit(){const t=this.editor.ui.componentFactory,e=this._blockToolbarConfig;this.toolbarView.fillFromConfig(e,t);for(const t of this.toolbarView.items)t.on("execute",(()=>this._hidePanel(!0)),{priority:"high"});e.shouldNotGroupWhenFull||this.listenTo(this.editor,"ready",(()=>{const t=this.editor.ui.view.editable.element;this._resizeObserver=new 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-find-and-replace-form {\n\tmax-width: 100%;\n\n\t& fieldset {\n\t\tdisplay: flex;\n\n\t\t/* The find fieldset */\n\t\t&.ck-find-and-replace-form__find .ck-results-counter {\n\t\t\tposition: absolute;\n\t\t}\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck.ck-find-and-replace-form {\n\twidth: 400px;\n\n\t/*\n\t * The <form> needs tabindex="-1" for proper Esc handling after being clicked\n\t * but the side effect is that this creates a nasty focus outline in some browsers.\n\t */\n\t&:focus {\n\t\toutline: none;\n\t}\n\n\t& fieldset {\n\t\tflex-direction: row;\n\t\tflex-wrap: nowrap;\n\t\talign-items: center;\n\t\talign-content: stretch;\n\n\t\tpadding: var(--ck-spacing-large);\n\t\tborder: 0;\n\t\tmargin: 0;\n\n\t\t& > .ck-button {\n\t\t\tflex: 0 0 auto;\n\t\t}\n\n\t\t@mixin ck-dir ltr {\n\t\t\t& > * + * {\n\t\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\t& > * + * {\n\t\t\t\tmargin-right: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\n\t\t& .ck-labeled-field-view {\n\t\t\tflex: 1 1 auto;\n\n\t\t\t& .ck-input {\n\t\t\t\twidth: 100%;\n\t\t\t\tmin-width: 50px;\n\t\t\t}\n\t\t}\n\n\t\t/* The find fieldset */\n\t\t&.ck-find-and-replace-form__find {\n\t\t\t/* To display all controls in line when there\'s an error under the input */\n\t\t\talign-items: flex-start;\n\n\t\t\t& > .ck-button-find {\n\t\t\t\tfont-weight: bold;\n\n\t\t\t\t/* Beef the find button up a little. It\'s the main action button in the form */\n\t\t\t\t& .ck-button__label {\n\t\t\t\t\tpadding-left: var(--ck-spacing-large);\n\t\t\t\t\tpadding-right: var(--ck-spacing-large);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t& > .ck-button-prev > .ck-icon {\n\t\t\t\ttransform: rotate(90deg);\n\t\t\t}\n\n\t\t\t& > .ck-button-next > .ck-icon {\n\t\t\t\ttransform: rotate(-90deg);\n\t\t\t}\n\n\t\t\t& .ck-results-counter {\n\t\t\t\ttop: 50%;\n\t\t\t\ttransform: translateY(-50%);\n\n\t\t\t\t@mixin ck-dir ltr {\n\t\t\t\t\tright: var(--ck-spacing-standard);\n\t\t\t\t}\n\n\t\t\t\t@mixin ck-dir rtl {\n\t\t\t\t\tleft: var(--ck-spacing-standard);\n\t\t\t\t}\n\n\t\t\t\tcolor: var(--ck-color-base-border);\n\t\t\t}\n\t\t}\n\n\t\t/* The replace fieldset */\n\t\t&.ck-find-and-replace-form__replace {\n\t\t\tflex-wrap: wrap;\n\t\t\tjustify-content: flex-end;\n\t\t\tmargin-top: calc( -1 * var(--ck-spacing-large) );\n\n\t\t\t& > .ck-labeled-field-view {\n\t\t\t\tmargin-bottom: var(--ck-spacing-large);\n\t\t\t}\n\n\t\t\t& > .ck-options-dropdown {\n\t\t\t\tmargin-right: auto;\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\n\t\t\t& > .ck-labeled-field-view,\n\t\t\t& > .ck-labeled-field-view .ck-input {\n\t\t\t\twidth: 100%;\n\t\t\t}\n\t\t}\n\t}\n}\n\n@mixin ck-media-phone {\n\t.ck.ck-find-and-replace-form {\n\t\twidth: 300px;\n\n\t\t& fieldset {\n\t\t\tflex-wrap: wrap;\n\n\t\t\t/* The find fieldset */\n\t\t\t&.ck-find-and-replace-form__find {\n\t\t\t\t& .ck-labeled-field-view {\n\t\t\t\t\tflex: 1 0 auto;\n\t\t\t\t\twidth: 100%;\n\t\t\t\t\tmargin-bottom: var(--ck-spacing-standard);\n\t\t\t\t}\n\n\t\t\t\t& > .ck-button {\n\t\t\t\t\ttext-align: center;\n\n\t\t\t\t\t&:first-of-type {\n\t\t\t\t\t\tflex: 1 1 auto;\n\n\t\t\t\t\t\t@mixin ck-dir ltr {\n\t\t\t\t\t\t\tmargin-left: 0;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t@mixin ck-dir rtl {\n\t\t\t\t\t\t\tmargin-right: 0;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t& .ck-button__label {\n\t\t\t\t\t\t\twidth: 100%;\n\t\t\t\t\t\t\ttext-align: center;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/* The replace fieldset */\n\t\t\t&.ck-find-and-replace-form__replace > :not(.ck-labeled-field-view) {\n\t\t\t\tflex: 1 1 auto;\n\n\t\t\t\t&.ck-dropdown {\n\t\t\t\t\tflex-grow: 0;\n\t\t\t\t}\n\n\t\t\t\t&.ck-button > .ck-button__label {\n\t\t\t\t\twidth: 100%;\n\t\t\t\t\ttext-align: center;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},1134:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck .ck-link_selected{background:var(--ck-color-link-selected-background)}.ck .ck-link_selected span.image-inline{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background)}.ck .ck-fake-link-selection{background:var(--ck-color-link-fake-selection)}.ck .ck-fake-link-selection_collapsed{border-right:1px solid var(--ck-color-base-text);height:100%;margin-right:-1px;outline:1px solid hsla(0,0%,100%,.5)}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/link.css"],names:[],mappings:"AAMA,sBACC,mDAMD,CAHC,wCACC,yFACD,CAOD,4BACC,8CACD,CAGA,sCAEC,gDAAiD,CADjD,WAAY,CAEZ,iBAAkB,CAClB,oCACD",sourcesContent:['/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* Class added to span element surrounding currently selected link. */\n.ck .ck-link_selected {\n\tbackground: var(--ck-color-link-selected-background);\n\n\t/* Give linked inline images some outline to let the user know they are also part of the link. */\n\t& span.image-inline {\n\t\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background);\n\t}\n}\n\n/*\n * Classes used by the "fake visual selection" displayed in the content when an input\n * in the link UI has focus (the browser does not render the native selection in this state).\n */\n.ck .ck-fake-link-selection {\n\tbackground: var(--ck-color-link-fake-selection);\n}\n\n/* A collapsed fake visual selection. */\n.ck .ck-fake-link-selection_collapsed {\n\theight: 100%;\n\tborder-right: 1px solid var(--ck-color-base-text);\n\tmargin-right: -1px;\n\toutline: solid 1px hsla(0, 0%, 100%, .5);\n}\n'],sourceRoot:""}]);const a=s},9376:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-link-actions{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-link-actions .ck-link-actions__preview{display:inline-block}.ck.ck-link-actions .ck-link-actions__preview .ck-button__label{overflow:hidden}@media screen and (max-width:600px){.ck.ck-link-actions{flex-wrap:wrap}.ck.ck-link-actions .ck-link-actions__preview{flex-basis:100%}.ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){flex-basis:50%}}.ck.ck-link-actions .ck-button.ck-link-actions__preview{padding-left:0;padding-right:0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{color:var(--ck-color-link-default);cursor:pointer;max-width:var(--ck-input-width);min-width:3em;padding:0 var(--ck-spacing-medium);text-align:center;text-overflow:ellipsis}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label:hover{text-decoration:underline}.ck.ck-link-actions .ck-button.ck-link-actions__preview,.ck.ck-link-actions .ck-button.ck-link-actions__preview:active,.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus,.ck.ck-link-actions .ck-button.ck-link-actions__preview:hover{background:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:active{box-shadow:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus .ck-button__label{text-decoration:underline}[dir=ltr] .ck.ck-link-actions .ck-button:not(:first-child),[dir=rtl] .ck.ck-link-actions .ck-button:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-link-actions .ck-button.ck-link-actions__preview{margin:var(--ck-spacing-standard) var(--ck-spacing-standard) 0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{max-width:100%;min-width:0}[dir=ltr] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview),[dir=rtl] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){margin-left:0}}","",{version:3,sources:["webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkactions.css","webpack://./../ckeditor5-ui/theme/mixins/_rwd.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkactions.css"],names:[],mappings:"AAOA,oBACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,8CACC,oBAKD,CAHC,gEACC,eACD,CCXD,oCDCD,oBAcE,cAUF,CARE,8CACC,eACD,CAEA,8DACC,cACD,CCrBD,CCIA,wDACC,cAAe,CACf,eAmCD,CAjCC,0EAEC,kCAAmC,CAEnC,cAAe,CAIf,+BAAgC,CAChC,aAAc,CARd,kCAAmC,CASnC,iBAAkB,CAPlB,sBAYD,CAHC,gFACC,yBACD,CAGD,mPAIC,eACD,CAEA,+DACC,eACD,CAGC,gFACC,yBACD,CAWD,qHACC,sCACD,CDtDD,oCC0DC,wDACC,8DAMD,CAJC,0EAEC,cAAe,CADf,WAED,CAGD,gJAME,aAEF,CDzED",sourcesContent:['/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-link-actions {\n\tdisplay: flex;\n\tflex-direction: row;\n\tflex-wrap: nowrap;\n\n\t& .ck-link-actions__preview {\n\t\tdisplay: inline-block;\n\n\t\t& .ck-button__label {\n\t\t\toverflow: hidden;\n\t\t}\n\t}\n\n\t@mixin ck-media-phone {\n\t\tflex-wrap: wrap;\n\n\t\t& .ck-link-actions__preview {\n\t\t\tflex-basis: 100%;\n\t\t}\n\n\t\t& .ck-button:not(.ck-link-actions__preview) {\n\t\t\tflex-basis: 50%;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_unselectable.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n@import "../mixins/_focus.css";\n@import "../mixins/_shadow.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-link-actions {\n\t& .ck-button.ck-link-actions__preview {\n\t\tpadding-left: 0;\n\t\tpadding-right: 0;\n\n\t\t& .ck-button__label {\n\t\t\tpadding: 0 var(--ck-spacing-medium);\n\t\t\tcolor: var(--ck-color-link-default);\n\t\t\ttext-overflow: ellipsis;\n\t\t\tcursor: pointer;\n\n\t\t\t/* Match the box model of the link editor form\'s input so the balloon\n\t\t\tdoes not change width when moving between actions and the form. */\n\t\t\tmax-width: var(--ck-input-width);\n\t\t\tmin-width: 3em;\n\t\t\ttext-align: center;\n\n\t\t\t&:hover {\n\t\t\t\ttext-decoration: underline;\n\t\t\t}\n\t\t}\n\n\t\t&,\n\t\t&:hover,\n\t\t&:focus,\n\t\t&:active {\n\t\t\tbackground: none;\n\t\t}\n\n\t\t&:active {\n\t\t\tbox-shadow: none;\n\t\t}\n\n\t\t&:focus {\n\t\t\t& .ck-button__label {\n\t\t\t\ttext-decoration: underline;\n\t\t\t}\n\t\t}\n\t}\n\n\t@mixin ck-dir ltr {\n\t\t& .ck-button:not(:first-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-dir rtl {\n\t\t& .ck-button:not(:last-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-media-phone {\n\t\t& .ck-button.ck-link-actions__preview {\n\t\t\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\n\n\t\t\t& .ck-button__label {\n\t\t\t\tmin-width: 0;\n\t\t\t\tmax-width: 100%;\n\t\t\t}\n\t\t}\n\n\t\t& .ck-button:not(.ck-link-actions__preview) {\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},8117:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-link-form{display:flex}.ck.ck-link-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-link-form{flex-wrap:wrap}.ck.ck-link-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-link-form .ck-button{flex-basis:50%}}.ck.ck-link-form_layout-vertical{display:block}.ck.ck-link-form_layout-vertical .ck-button.ck-button-cancel,.ck.ck-link-form_layout-vertical .ck-button.ck-button-save{margin-top:var(--ck-spacing-medium)}.ck.ck-link-form_layout-vertical{min-width:var(--ck-input-width);padding:0}.ck.ck-link-form_layout-vertical .ck-labeled-field-view{margin:var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small)}.ck.ck-link-form_layout-vertical .ck-labeled-field-view .ck-input-text{min-width:0;width:100%}.ck.ck-link-form_layout-vertical>.ck-button{border-radius:0;margin:0;padding:var(--ck-spacing-standard);width:50%}.ck.ck-link-form_layout-vertical>.ck-button:not(:focus){border-top:1px solid var(--ck-color-base-border)}[dir=ltr] .ck.ck-link-form_layout-vertical>.ck-button,[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button{margin-left:0}[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button:last-of-type{border-right:1px solid var(--ck-color-base-border)}.ck.ck-link-form_layout-vertical .ck.ck-list{margin:var(--ck-spacing-standard) var(--ck-spacing-large)}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton{padding:0;width:100%}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton:hover{background:none}","",{version:3,sources:["webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkform.css","webpack://./../ckeditor5-ui/theme/mixins/_rwd.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkform.css"],names:[],mappings:"AAOA,iBACC,YAiBD,CAfC,2BACC,YACD,CCNA,oCDCD,iBAQE,cAUF,CARE,wCACC,eACD,CAEA,4BACC,cACD,CCfD,CDuBD,iCACC,aAYD,CALE,wHAEC,mCACD,CE/BF,iCAEC,+BAAgC,CADhC,SAgDD,CA7CC,wDACC,8EAMD,CAJC,uEACC,WAAY,CACZ,UACD,CAGD,4CAIC,eAAgB,CAFhB,QAAS,CADT,kCAAmC,CAEnC,SAkBD,CAfC,wDACC,gDACD,CARD,4GAeE,aAMF,CAJE,mEACC,kDACD,CAKF,6CACC,yDAUD,CARC,wEACC,SAAU,CACV,UAKD,CAHC,8EACC,eACD",sourcesContent:['/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-link-form {\n\tdisplay: flex;\n\n\t& .ck-label {\n\t\tdisplay: none;\n\t}\n\n\t@mixin ck-media-phone {\n\t\tflex-wrap: wrap;\n\n\t\t& .ck-labeled-field-view {\n\t\t\tflex-basis: 100%;\n\t\t}\n\n\t\t& .ck-button {\n\t\t\tflex-basis: 50%;\n\t\t}\n\t}\n}\n\n/*\n * Style link form differently when manual decorators are available.\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\n */\n.ck.ck-link-form_layout-vertical {\n\tdisplay: block;\n\n\t/*\n\t * Whether the form is in the responsive mode or not, if there are decorator buttons\n\t * keep the top margin of action buttons medium.\n\t */\n\t& .ck-button {\n\t\t&.ck-button-save,\n\t\t&.ck-button-cancel {\n\t\t\tmargin-top: var(--ck-spacing-medium);\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n/*\n * Style link form differently when manual decorators are available.\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\n */\n.ck.ck-link-form_layout-vertical {\n\tpadding: 0;\n\tmin-width: var(--ck-input-width);\n\n\t& .ck-labeled-field-view {\n\t\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small);\n\n\t\t& .ck-input-text {\n\t\t\tmin-width: 0;\n\t\t\twidth: 100%;\n\t\t}\n\t}\n\n\t& > .ck-button {\n\t\tpadding: var(--ck-spacing-standard);\n\t\tmargin: 0;\n\t\twidth: 50%;\n\t\tborder-radius: 0;\n\n\t\t&:not(:focus) {\n\t\t\tborder-top: 1px solid var(--ck-color-base-border);\n\t\t}\n\n\t\t@mixin ck-dir ltr {\n\t\t\tmargin-left: 0;\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\tmargin-left: 0;\n\n\t\t\t&:last-of-type {\n\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t}\n\t\t}\n\t}\n\n\t/* Using additional `.ck` class for stronger CSS specificity than `.ck.ck-link-form > :not(:first-child)`. */\n\t& .ck.ck-list {\n\t\tmargin: var(--ck-spacing-standard) var(--ck-spacing-large);\n\n\t\t& .ck-button.ck-switchbutton {\n\t\t\tpadding: 0;\n\t\t\twidth: 100%;\n\n\t\t\t&:hover {\n\t\t\t\tbackground: none;\n\t\t\t}\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},5023:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-color-mention-background:rgba(153,0,48,.1);--ck-color-mention-text:#990030}.ck-content .mention{background:var(--ck-color-mention-background);color:var(--ck-color-mention-text)}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-mention/mention.css"],names:[],mappings:"AAKA,MACC,+CAAwD,CACxD,+BACD,CAEA,qBACC,6CAA8C,CAC9C,kCACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-editor__editable {\n\t& .image,\n\t& .image-inline {\n\t\t/* Showing animation. */\n\t\t&.ck-appear {\n\t\t\tanimation: fadeIn 700ms;\n\t\t}\n\t}\n\n\t/* Upload progress bar. */\n\t& .image .ck-progress-bar,\n\t& .image-inline .ck-progress-bar {\n\t\theight: 2px;\n\t\twidth: 0;\n\t\tbackground: var(--ck-color-upload-bar-background);\n\t\ttransition: width 100ms;\n\t}\n}\n\n@keyframes fadeIn {\n\tfrom { opacity: 0; }\n\tto   { opacity: 1; }\n}\n"],sourceRoot:""}]);const a=s},1905:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-text-alternative-form{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-text-alternative-form .ck-labeled-field-view{display:inline-block}.ck.ck-text-alternative-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-text-alternative-form{flex-wrap:wrap}.ck.ck-text-alternative-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-text-alternative-form .ck-button{flex-basis:50%}}","",{version:3,sources:["webpack://./../ckeditor5-image/theme/textalternativeform.css","webpack://./../ckeditor5-ui/theme/mixins/_rwd.css"],names:[],mappings:"AAOA,6BACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,oDACC,oBACD,CAEA,uCACC,YACD,CCZA,oCDCD,6BAcE,cAUF,CARE,oDACC,eACD,CAEA,wCACC,cACD,CCrBD",sourcesContent:['/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck.ck-text-alternative-form {\n\tdisplay: flex;\n\tflex-direction: row;\n\tflex-wrap: nowrap;\n\n\t& .ck-labeled-field-view {\n\t\tdisplay: inline-block;\n\t}\n\n\t& .ck-label {\n\t\tdisplay: none;\n\t}\n\n\t@mixin ck-media-phone {\n\t\tflex-wrap: wrap;\n\n\t\t& .ck-labeled-field-view {\n\t\t\tflex-basis: 100%;\n\t\t}\n\n\t\t& .ck-button {\n\t\t\tflex-basis: 50%;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},4721:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-collapsible.ck-collapsible_collapsed>.ck-collapsible__children{display:none}:root{--ck-collapsible-arrow-size:calc(var(--ck-icon-size)*0.5)}.ck.ck-collapsible>.ck.ck-button{border-radius:0;color:inherit;font-weight:700;padding:var(--ck-spacing-medium) var(--ck-spacing-large);width:100%}.ck.ck-collapsible>.ck.ck-button:focus{background:transparent}.ck.ck-collapsible>.ck.ck-button:active,.ck.ck-collapsible>.ck.ck-button:hover:not(:focus),.ck.ck-collapsible>.ck.ck-button:not(:focus){background:transparent;border-color:transparent;box-shadow:none}.ck.ck-collapsible>.ck.ck-button>.ck-icon{margin-right:var(--ck-spacing-medium);width:var(--ck-collapsible-arrow-size)}.ck.ck-collapsible>.ck-collapsible__children{padding:0 var(--ck-spacing-large) var(--ck-spacing-large)}.ck.ck-collapsible.ck-collapsible_collapsed>.ck.ck-button .ck-icon{transform:rotate(-90deg)}","",{version:3,sources:["webpack://./../ckeditor5-list/theme/collapsible.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/collapsible.css"],names:[],mappings:"AAMC,sEACC,YACD,CCHD,MACC,yDACD,CAGC,iCAIC,eAAgB,CAChB,aAAc,CAHd,eAAiB,CACjB,wDAAyD,CAFzD,UAoBD,CAdC,uCACC,sBACD,CAEA,wIACC,sBAAuB,CACvB,wBAAyB,CACzB,eACD,CAEA,0CACC,qCAAsC,CACtC,sCACD,CAGD,6CACC,yDACD,CAGC,mEACC,wBACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-collapsible.ck-collapsible_collapsed {\n\t& > .ck-collapsible__children {\n\t\tdisplay: none;\n\t}\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-collapsible-arrow-size: calc(0.5 * var(--ck-icon-size));\n}\n\n.ck.ck-collapsible {\n\t& > .ck.ck-button {\n\t\twidth: 100%;\n\t\tfont-weight: bold;\n\t\tpadding: var(--ck-spacing-medium) var(--ck-spacing-large);\n\t\tborder-radius: 0;\n\t\tcolor: inherit;\n\n\t\t&:focus {\n\t\t\tbackground: transparent;\n\t\t}\n\n\t\t&:active, &:not(:focus), &:hover:not(:focus) {\n\t\t\tbackground: transparent;\n\t\t\tborder-color: transparent;\n\t\t\tbox-shadow: none;\n\t\t}\n\n\t\t& > .ck-icon {\n\t\t\tmargin-right: var(--ck-spacing-medium);\n\t\t\twidth: var(--ck-collapsible-arrow-size);\n\t\t}\n\t}\n\n\t& > .ck-collapsible__children {\n\t\tpadding: 0 var(--ck-spacing-large) var(--ck-spacing-large);\n\t}\n\n\t&.ck-collapsible_collapsed {\n\t\t& > .ck.ck-button .ck-icon {\n\t\t\ttransform: rotate(-90deg);\n\t\t}\n\t}\n}\n"],sourceRoot:""}]);const a=s},4564:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck-content ol{list-style-type:decimal}.ck-content ol ol{list-style-type:lower-latin}.ck-content ol ol ol{list-style-type:lower-roman}.ck-content ol ol ol ol{list-style-type:upper-latin}.ck-content ol ol ol ol ol{list-style-type:upper-roman}.ck-content ul{list-style-type:disc}.ck-content ul ul{list-style-type:circle}.ck-content ul ul ul,.ck-content ul ul ul ul{list-style-type:square}","",{version:3,sources:["webpack://./../ckeditor5-list/theme/list.css"],names:[],mappings:"AAKA,eACC,uBAiBD,CAfC,kBACC,2BAaD,CAXC,qBACC,2BASD,CAPC,wBACC,2BAKD,CAHC,2BACC,2BACD,CAMJ,eACC,oBAaD,CAXC,kBACC,sBASD,CAJE,6CACC,sBACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck-content ol {\n\tlist-style-type: decimal;\n\n\t& ol {\n\t\tlist-style-type: lower-latin;\n\n\t\t& ol {\n\t\t\tlist-style-type: lower-roman;\n\n\t\t\t& ol {\n\t\t\t\tlist-style-type: upper-latin;\n\n\t\t\t\t& ol {\n\t\t\t\t\tlist-style-type: upper-roman;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\n.ck-content ul {\n\tlist-style-type: disc;\n\n\t& ul {\n\t\tlist-style-type: circle;\n\n\t\t& ul {\n\t\t\tlist-style-type: square;\n\n\t\t\t& ul {\n\t\t\t\tlist-style-type: square;\n\t\t\t}\n\t\t}\n\t}\n}\n"],sourceRoot:""}]);const a=s},6082:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-list-properties.ck-list-properties_without-styles{padding:var(--ck-spacing-large)}.ck.ck-list-properties.ck-list-properties_without-styles>*{min-width:14em}.ck.ck-list-properties.ck-list-properties_without-styles>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-list-styles-list{grid-template-columns:repeat(4,auto)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible{border-top:1px solid var(--ck-color-base-border)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*{width:100%}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties .ck.ck-numbered-list-properties__start-index .ck-input{min-width:auto;width:100%}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order{background:transparent;margin-bottom:calc(var(--ck-spacing-tiny)*-1);padding-left:0;padding-right:0}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:active,.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:hover{background:none;border-color:transparent;box-shadow:none}","",{version:3,sources:["webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/listproperties.css"],names:[],mappings:"AAOC,yDACC,+BASD,CAPC,2DACC,cAKD,CAHC,6DACC,qCACD,CASD,wFACC,oCACD,CAGA,mFACC,gDAWD,CARE,+GACC,UAKD,CAHC,iHACC,qCACD,CAMJ,8EACC,cAAe,CACf,UACD,CAEA,uEACC,sBAAuB,CAGvB,6CAAgD,CAFhD,cAAe,CACf,eAQD,CALC,2JAGC,eAAgB,CADhB,wBAAyB,CADzB,eAGD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-list-properties {\n\t/* When there are no list styles and there is no collapsible. */\n\t&.ck-list-properties_without-styles {\n\t\tpadding: var(--ck-spacing-large);\n\n\t\t& > * {\n\t\t\tmin-width: 14em;\n\n\t\t\t& + * {\n\t\t\t\tmargin-top: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\t}\n\n\t/*\n\t * When the numbered list property fields (start at, reversed) should be displayed,\n\t * more horizontal space is needed. Reconfigure the style grid to create that space.\n\t */\n\t&.ck-list-properties_with-numbered-properties {\n\t\t& > .ck-list-styles-list {\n\t\t\tgrid-template-columns: repeat( 4, auto );\n\t\t}\n\n\t\t/* When list styles are rendered and property fields are in a collapsible. */\n\t\t& > .ck-collapsible {\n\t\t\tborder-top: 1px solid var(--ck-color-base-border);\n\n\t\t\t& > .ck-collapsible__children {\n\t\t\t\t& > * {\n\t\t\t\t\twidth: 100%;\n\n\t\t\t\t\t& + * {\n\t\t\t\t\t\tmargin-top: var(--ck-spacing-standard);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t& .ck.ck-numbered-list-properties__start-index .ck-input {\n\t\tmin-width: auto;\n\t\twidth: 100%;\n\t}\n\n\t& .ck.ck-numbered-list-properties__reversed-order {\n\t\tbackground: transparent;\n\t\tpadding-left: 0;\n\t\tpadding-right: 0;\n\t\tmargin-bottom: calc(-1 * var(--ck-spacing-tiny));\n\n\t\t&:active, &:hover {\n\t\t\tbox-shadow: none;\n\t\t\tborder-color: transparent;\n\t\t\tbackground: none;\n\t\t}\n\t}\n}\n"],sourceRoot:""}]);const a=s},2417:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-list-styles-list{display:grid}:root{--ck-list-style-button-size:44px}.ck.ck-list-styles-list{column-gap:var(--ck-spacing-medium);grid-template-columns:repeat(3,auto);padding:var(--ck-spacing-large);row-gap:var(--ck-spacing-medium)}.ck.ck-list-styles-list .ck-button{box-sizing:content-box;margin:0;padding:0}.ck.ck-list-styles-list .ck-button,.ck.ck-list-styles-list .ck-button .ck-icon{height:var(--ck-list-style-button-size);width:var(--ck-list-style-button-size)}","",{version:3,sources:["webpack://./../ckeditor5-list/theme/liststyles.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/liststyles.css"],names:[],mappings:"AAKA,wBACC,YACD,CCFA,MACC,gCACD,CAEA,wBAGC,mCAAoC,CAFpC,oCAAwC,CAGxC,+BAAgC,CAFhC,gCA4BD,CAxBC,mCAiBC,sBAAuB,CAPvB,QAAS,CANT,SAmBD,CAJC,+EAhBA,uCAAwC,CADxC,sCAoBA",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-list-styles-list {\n\tdisplay: grid;\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-list-style-button-size: 44px;\n}\n\n.ck.ck-list-styles-list {\n\tgrid-template-columns: repeat( 3, auto );\n\trow-gap: var(--ck-spacing-medium);\n\tcolumn-gap: var(--ck-spacing-medium);\n\tpadding: var(--ck-spacing-large);\n\n\t& .ck-button {\n\t\t/* Make the button look like a thumbnail (the icon "takes it all"). */\n\t\twidth: var(--ck-list-style-button-size);\n\t\theight: var(--ck-list-style-button-size);\n\t\tpadding: 0;\n\n\t\t/*\n\t\t * Buttons are aligned by the grid so disable default button margins to not collide with the\n\t\t * gaps in the grid.\n\t\t */\n\t\tmargin: 0;\n\n\t\t/*\n\t\t * Make sure the button border (which is displayed on focus, BTW) does not steal pixels\n\t\t * from the button dimensions and, as a result, decrease the size of the icon\n\t\t * (which becomes blurry as it scales down).\n\t\t */\n\t\tbox-sizing: content-box;\n\n\t\t& .ck-icon {\n\t\t\twidth: var(--ck-list-style-button-size);\n\t\t\theight: var(--ck-list-style-button-size);\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},1199:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,':root{--ck-todo-list-checkmark-size:16px}.ck-content .todo-list{list-style:none}.ck-content .todo-list li{margin-bottom:5px}.ck-content .todo-list li .todo-list{margin-top:5px}.ck-content .todo-list .todo-list__label>input{-webkit-appearance:none;border:0;display:inline-block;height:var(--ck-todo-list-checkmark-size);left:-25px;margin-left:0;margin-right:-15px;position:relative;right:0;vertical-align:middle;width:var(--ck-todo-list-checkmark-size)}.ck-content .todo-list .todo-list__label>input:before{border:1px solid #333;border-radius:2px;box-sizing:border-box;content:"";display:block;height:100%;position:absolute;transition:box-shadow .25s ease-in-out,background .25s ease-in-out,border .25s ease-in-out;width:100%}.ck-content .todo-list .todo-list__label>input:after{border-color:transparent;border-style:solid;border-width:0 calc(var(--ck-todo-list-checkmark-size)/8) calc(var(--ck-todo-list-checkmark-size)/8) 0;box-sizing:content-box;content:"";display:block;height:calc(var(--ck-todo-list-checkmark-size)/2.6);left:calc(var(--ck-todo-list-checkmark-size)/3);pointer-events:none;position:absolute;top:calc(var(--ck-todo-list-checkmark-size)/5.3);transform:rotate(45deg);width:calc(var(--ck-todo-list-checkmark-size)/5.3)}.ck-content .todo-list .todo-list__label>input[checked]:before{background:#26ab33;border-color:#26ab33}.ck-content .todo-list .todo-list__label>input[checked]:after{border-color:#fff}.ck-content .todo-list .todo-list__label .todo-list__label__description{vertical-align:middle}[dir=rtl] .todo-list .todo-list__label>input{left:0;margin-left:-15px;margin-right:0;right:-25px}.ck-editor__editable .todo-list .todo-list__label>input{cursor:pointer}.ck-editor__editable .todo-list .todo-list__label>input:hover:before{box-shadow:0 0 0 5px rgba(0,0,0,.1)}',"",{version:3,sources:["webpack://./../ckeditor5-list/theme/todolist.css"],names:[],mappings:"AAKA,MACC,kCACD,CAEA,uBACC,eA0ED,CAxEC,0BACC,iBAKD,CAHC,qCACC,cACD,CAIA,+CACC,uBAAwB,CAQxB,QAAS,CAPT,oBAAqB,CAGrB,yCAA0C,CAO1C,UAAW,CAGX,aAAc,CAFd,kBAAmB,CAVnB,iBAAkB,CAWlB,OAAQ,CARR,qBAAsB,CAFtB,wCAqDD,CAxCC,sDAOC,qBAAiC,CACjC,iBAAkB,CALlB,qBAAsB,CACtB,UAAW,CAHX,aAAc,CAKd,WAAY,CAJZ,iBAAkB,CAOlB,0FAAgG,CAJhG,UAKD,CAEA,qDAaC,wBAAyB,CADzB,kBAAmB,CAEnB,sGAA+G,CAX/G,sBAAuB,CAEvB,UAAW,CAJX,aAAc,CAUd,mDAAwD,CAHxD,+CAAoD,CAJpD,mBAAoB,CAFpB,iBAAkB,CAOlB,gDAAqD,CAMrD,uBAAwB,CALxB,kDAMD,CAGC,+DACC,kBAA8B,CAC9B,oBACD,CAEA,8DACC,iBACD,CAIF,wEACC,qBACD,CAKF,6CACC,MAAO,CAGP,iBAAkB,CAFlB,cAAe,CACf,WAED,CAMA,wDACC,cAKD,CAHC,qEACC,mCACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-todo-list-checkmark-size: 16px;\n}\n\n.ck-content .todo-list {\n\tlist-style: none;\n\n\t& li {\n\t\tmargin-bottom: 5px;\n\n\t\t& .todo-list {\n\t\t\tmargin-top: 5px;\n\t\t}\n\t}\n\n\t& .todo-list__label {\n\t\t& > input {\n\t\t\t-webkit-appearance: none;\n\t\t\tdisplay: inline-block;\n\t\t\tposition: relative;\n\t\t\twidth: var(--ck-todo-list-checkmark-size);\n\t\t\theight: var(--ck-todo-list-checkmark-size);\n\t\t\tvertical-align: middle;\n\n\t\t\t/* Needed on iOS */\n\t\t\tborder: 0;\n\n\t\t\t/* LTR styles */\n\t\t\tleft: -25px;\n\t\t\tmargin-right: -15px;\n\t\t\tright: 0;\n\t\t\tmargin-left: 0;\n\n\t\t\t&::before {\n\t\t\t\tdisplay: block;\n\t\t\t\tposition: absolute;\n\t\t\t\tbox-sizing: border-box;\n\t\t\t\tcontent: '';\n\t\t\t\twidth: 100%;\n\t\t\t\theight: 100%;\n\t\t\t\tborder: 1px solid hsl(0, 0%, 20%);\n\t\t\t\tborder-radius: 2px;\n\t\t\t\ttransition: 250ms ease-in-out box-shadow, 250ms ease-in-out background, 250ms ease-in-out border;\n\t\t\t}\n\n\t\t\t&::after {\n\t\t\t\tdisplay: block;\n\t\t\t\tposition: absolute;\n\t\t\t\tbox-sizing: content-box;\n\t\t\t\tpointer-events: none;\n\t\t\t\tcontent: '';\n\n\t\t\t\t/* Calculate tick position, size and border-width proportional to the checkmark size. */\n\t\t\t\tleft: calc( var(--ck-todo-list-checkmark-size) / 3 );\n\t\t\t\ttop: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\n\t\t\t\twidth: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\n\t\t\t\theight: calc( var(--ck-todo-list-checkmark-size) / 2.6 );\n\t\t\t\tborder-style: solid;\n\t\t\t\tborder-color: transparent;\n\t\t\t\tborder-width: 0 calc( var(--ck-todo-list-checkmark-size) / 8 ) calc( var(--ck-todo-list-checkmark-size) / 8 ) 0;\n\t\t\t\ttransform: rotate(45deg);\n\t\t\t}\n\n\t\t\t&[checked] {\n\t\t\t\t&::before {\n\t\t\t\t\tbackground: hsl(126, 64%, 41%);\n\t\t\t\t\tborder-color: hsl(126, 64%, 41%);\n\t\t\t\t}\n\n\t\t\t\t&::after {\n\t\t\t\t\tborder-color: hsl(0, 0%, 100%);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t& .todo-list__label__description {\n\t\t\tvertical-align: middle;\n\t\t}\n\t}\n}\n\n/* RTL styles */\n[dir=\"rtl\"] .todo-list .todo-list__label > input {\n\tleft: 0;\n\tmargin-right: 0;\n\tright: -25px;\n\tmargin-left: -15px;\n}\n\n/*\n * To-do list should be interactive only during the editing\n * (https://github.com/ckeditor/ckeditor5/issues/2090).\n */\n.ck-editor__editable .todo-list .todo-list__label > input {\n\tcursor: pointer;\n\n\t&:hover::before {\n\t\tbox-shadow: 0 0 0 5px hsla(0, 0%, 0%, 0.1);\n\t}\n}\n"],sourceRoot:""}]);const a=s},7368:(t,e,n)=>{n.d(e,{Z:()=>a});var 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.ck.ck-input-color>.ck.ck-input-text{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-input-color>.ck.ck-input-text:focus{z-index:0}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{padding:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-left-radius:0;border-top-left-radius:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-left:1px solid transparent}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-right-radius:0;border-top-right-radius:0}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-right:1px solid transparent}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button.ck-disabled{background:var(--ck-color-input-disabled-background)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border-radius:0}.ck-rounded-corners .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview,.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border:1px solid var(--ck-color-input-border);height:20px;width:20px}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview>.ck.ck-input-color__button__preview__no-color-indicator{background:red;border-radius:2px;height:150%;left:50%;top:-30%;transform:rotate(45deg);transform-origin:50%;width:8%}.ck.ck-input-color .ck.ck-input-color__remove-color{border-bottom-left-radius:0;border-bottom-right-radius:0;padding:calc(var(--ck-spacing-standard)/2) var(--ck-spacing-standard);width:100%}.ck.ck-input-color .ck.ck-input-color__remove-color:not(:focus){border-bottom:1px solid var(--ck-color-input-border)}[dir=ltr] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-right-radius:0}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-left-radius:0}.ck.ck-input-color .ck.ck-input-color__remove-color .ck.ck-icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-input-color {\n\twidth: 100%;\n\tdisplay: flex;\n\tflex-direction: row-reverse;\n\n\t& > input.ck.ck-input-text {\n\t\tmin-width: auto;\n\t\tflex-grow: 1;\n\t}\n\n\t& > div.ck.ck-dropdown {\n\t\tmin-width: auto;\n\n\t\t/* This dropdown has no arrow but a color preview instead. */\n\t\t& > .ck-input-color__button .ck-dropdown__arrow {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n\n\t& .ck.ck-input-color__button {\n\t\t/* Resolving issue with misaligned buttons on Safari (see #10589) */\n\t\tdisplay: flex;\n\n\t\t& .ck.ck-input-color__button__preview {\n\t\t\tposition: relative;\n\t\t\toverflow: hidden;\n\n\t\t\t& > .ck.ck-input-color__button__preview__no-color-indicator {\n\t\t\t\tposition: absolute;\n\t\t\t\tdisplay: block;\n\t\t\t}\n\t\t}\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n@import "../mixins/_rounded.css";\n\n.ck.ck-input-color {\n\t& > .ck.ck-input-text {\n\t\t@mixin ck-dir ltr {\n\t\t\tborder-top-right-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\tborder-top-left-radius: 0;\n\t\t\tborder-bottom-left-radius: 0;\n\t\t}\n\n\t\t/* Make sure the focused input is always on top of the dropdown button so its\n\t\t   outline and border are never cropped (also when the input is read-only). */\n\t\t&:focus {\n\t\t\tz-index: 0;\n\t\t}\n\t}\n\n\t& > .ck.ck-dropdown {\n\t\t& > .ck.ck-button.ck-input-color__button {\n\t\t\tpadding: 0;\n\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tborder-top-left-radius: 0;\n\t\t\t\tborder-bottom-left-radius: 0;\n\n\t\t\t\t&:not(:focus) {\n\t\t\t\t\tborder-left: 1px solid transparent;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tborder-top-right-radius: 0;\n\t\t\t\tborder-bottom-right-radius: 0;\n\n\t\t\t\t&:not(:focus) {\n\t\t\t\t\tborder-right: 1px solid transparent;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t&.ck-disabled {\n\t\t\t\tbackground: var(--ck-color-input-disabled-background);\n\t\t\t}\n\n\t\t\t& > .ck.ck-input-color__button__preview {\n\t\t\t\t@mixin ck-rounded-corners;\n\n\t\t\t\twidth: 20px;\n\t\t\t\theight: 20px;\n\t\t\t\tborder: 1px solid var(--ck-color-input-border);\n\n\t\t\t\t& > .ck.ck-input-color__button__preview__no-color-indicator {\n\t\t\t\t\ttop: -30%;\n\t\t\t\t\tleft: 50%;\n\t\t\t\t\theight: 150%;\n\t\t\t\t\twidth: 8%;\n\t\t\t\t\tbackground: hsl(0, 100%, 50%);\n\t\t\t\t\tborder-radius: 2px;\n\t\t\t\t\ttransform: rotate(45deg);\n\t\t\t\t\ttransform-origin: 50%;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t& .ck.ck-input-color__remove-color {\n\t\twidth: 100%;\n\t\tpadding: calc(var(--ck-spacing-standard) / 2) var(--ck-spacing-standard);\n\n\t\tborder-bottom-left-radius: 0;\n\t\tborder-bottom-right-radius: 0;\n\n\t\t&:not(:focus) {\n\t\t\tborder-bottom: 1px solid var(--ck-color-input-border);\n\t\t}\n\n\t\t@mixin ck-dir ltr {\n\t\t\tborder-top-right-radius: 0;\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\tborder-top-left-radius: 0;\n\t\t}\n\n\t\t& .ck.ck-icon {\n\t\t\tmargin-right: var(--ck-spacing-standard);\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-right: 0;\n\t\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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* Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../mixins/_unselectable.css";\n\n.ck.ck-button,\na.ck.ck-button {\n\t@mixin ck-unselectable;\n\n\tposition: relative;\n\tdisplay: inline-flex;\n\talign-items: center;\n\tjustify-content: left;\n\n\t& .ck-button__label {\n\t\tdisplay: none;\n\t}\n\n\t&.ck-button_with-text {\n\t\t& .ck-button__label {\n\t\t\tdisplay: inline-block;\n\t\t}\n\t}\n\n\t/* Center the icon horizontally in a button without text. */\n\t&:not(.ck-button_with-text)  {\n\t\tjustify-content: center;\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Makes element unselectable.\n */\n@define-mixin ck-unselectable {\n\t-moz-user-select: none;\n\t-webkit-user-select: none;\n\t-ms-user-select: none;\n\tuser-select: none\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_focus.css";\n@import "../../../mixins/_shadow.css";\n@import "../../../mixins/_disabled.css";\n@import "../../../mixins/_rounded.css";\n@import "../../mixins/_button.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck.ck-button,\na.ck.ck-button {\n\t@mixin ck-button-colors --ck-color-button-default;\n\t@mixin ck-rounded-corners;\n\n\twhite-space: nowrap;\n\tcursor: default;\n\tvertical-align: middle;\n\tpadding: var(--ck-spacing-tiny);\n\ttext-align: center;\n\n\t/* A very important piece of styling. Go to variable declaration to learn more. */\n\tmin-width: var(--ck-ui-component-min-height);\n\tmin-height: var(--ck-ui-component-min-height);\n\n\t/* Normalize the height of the line. Removing this will break consistent height\n\tamong text and text-less buttons (with icons). */\n\tline-height: 1;\n\n\t/* Enable font size inheritance, which allows fluid UI scaling. */\n\tfont-size: inherit;\n\n\t/* Avoid flickering when the foucs border shows up. */\n\tborder: 1px solid transparent;\n\n\t/* Apply some smooth transition to the box-shadow and border. */\n\ttransition: box-shadow .2s ease-in-out, border .2s ease-in-out;\n\n\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/189 */\n\t-webkit-appearance: none;\n\n\t&:active,\n\t&:focus {\n\t\t@mixin ck-focus-ring;\n\t\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\n\t}\n\n\t/* Allow icon coloring using the text "color" property. */\n\t& .ck-button__icon {\n\t\t& use,\n\t\t& use * {\n\t\t\tcolor: inherit;\n\t\t}\n\t}\n\n\t& .ck-button__label {\n\t\t/* Enable font size inheritance, which allows fluid UI scaling. */\n\t\tfont-size: inherit;\n\t\tfont-weight: inherit;\n\t\tcolor: inherit;\n\t\tcursor: inherit;\n\n\t\t/* Must be consistent with .ck-icon\'s vertical align. Otherwise, buttons with and\n\t\twithout labels (but with icons) have different sizes in Chrome */\n\t\tvertical-align: middle;\n\n\t\t@mixin ck-dir ltr {\n\t\t\ttext-align: left;\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\ttext-align: right;\n\t\t}\n\t}\n\n\t& .ck-button__keystroke {\n\t\tcolor: inherit;\n\n\t\t@mixin ck-dir ltr {\n\t\t\tmargin-left: var(--ck-spacing-large);\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\tmargin-right: var(--ck-spacing-large);\n\t\t}\n\n\t\tfont-weight: bold;\n\t\topacity: .7;\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/70 */\n\t&.ck-disabled {\n\t\t&:active,\n\t\t&:focus {\n\t\t\t/* The disabled button should have a slightly less visible shadow when focused. */\n\t\t\t@mixin ck-box-shadow var(--ck-focus-disabled-outer-shadow);\n\t\t}\n\n\t\t& .ck-button__icon {\n\t\t\t@mixin ck-disabled;\n\t\t}\n\n\t\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/98 */\n\t\t& .ck-button__label {\n\t\t\t@mixin ck-disabled;\n\t\t}\n\n\t\t& .ck-button__keystroke {\n\t\t\topacity: .3;\n\t\t}\n\t}\n\n\t&.ck-button_with-text {\n\t\tpadding: var(--ck-spacing-tiny) var(--ck-spacing-standard);\n\n\t\t/* stylelint-disable-next-line no-descending-specificity */\n\t\t& .ck-button__icon {\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tmargin-left: calc(-1 * var(--ck-spacing-small));\n\t\t\t\tmargin-right: var(--ck-spacing-small);\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-right: calc(-1 * var(--ck-spacing-small));\n\t\t\t\tmargin-left: var(--ck-spacing-small);\n\t\t\t}\n\t\t}\n\t}\n\n\t&.ck-button_with-keystroke {\n\t\t/* stylelint-disable-next-line no-descending-specificity */\n\t\t& .ck-button__label {\n\t\t\tflex-grow: 1;\n\t\t}\n\t}\n\n\t/* A style of the button which is currently on, e.g. its feature is active. */\n\t&.ck-on {\n\t\t@mixin ck-button-colors --ck-color-button-on;\n\n\t\tcolor: var(--ck-color-button-on-color);\n\t}\n\n\t&.ck-button-save {\n\t\tcolor: var(--ck-color-button-save);\n\t}\n\n\t&.ck-button-cancel {\n\t\tcolor: var(--ck-color-button-cancel);\n\t}\n}\n\n/* A style of the button which handles the primary action. */\n.ck.ck-button-action,\na.ck.ck-button-action {\n\t@mixin ck-button-colors --ck-color-button-action;\n\n\tcolor: var(--ck-color-button-action-text);\n}\n\n.ck.ck-button-bold,\na.ck.ck-button-bold {\n\tfont-weight: bold;\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements a button of given background color.\n *\n * @param {String} $background - Background color of the button.\n * @param {String} $border - Border color of the button.\n */\n@define-mixin ck-button-colors $prefix {\n\tbackground: var($(prefix)-background);\n\n\t&:not(.ck-disabled) {\n\t\t&:hover {\n\t\t\tbackground: var($(prefix)-hover-background);\n\t\t}\n\n\t\t&:active {\n\t\t\tbackground: var($(prefix)-active-background);\n\t\t}\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/98 */\n\t&.ck-disabled {\n\t\tbackground: var($(prefix)-disabled-background);\n\t}\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-dropdown-max-width: 75vw;\n}\n\n.ck.ck-dropdown {\n\tdisplay: inline-block;\n\tposition: relative;\n\n\t& .ck-dropdown__arrow {\n\t\tpointer-events: none;\n\t\tz-index: var(--ck-z-default);\n\t}\n\n\t/* Dropdown button should span horizontally, e.g. in vertical toolbars */\n\t& .ck-button.ck-dropdown__button {\n\t\twidth: 100%;\n\t}\n\n\t& .ck-dropdown__panel {\n\t\tdisplay: none;\n\t\tz-index: var(--ck-z-modal);\n\t\tmax-width: var(--ck-dropdown-max-width);\n\n\t\tposition: absolute;\n\n\t\t&.ck-dropdown__panel-visible {\n\t\t\tdisplay: inline-block;\n\t\t}\n\n\t\t&.ck-dropdown__panel_ne,\n\t\t&.ck-dropdown__panel_nw,\n\t\t&.ck-dropdown__panel_n,\n\t\t&.ck-dropdown__panel_nmw,\n\t\t&.ck-dropdown__panel_nme {\n\t\t\tbottom: 100%;\n\t\t}\n\n\t\t&.ck-dropdown__panel_se,\n\t\t&.ck-dropdown__panel_sw,\n\t\t&.ck-dropdown__panel_smw,\n\t\t&.ck-dropdown__panel_sme,\n\t\t&.ck-dropdown__panel_s {\n\t\t\t/*\n\t\t\t * Using transform: translate3d( 0, 100%, 0 ) causes blurry dropdown on Chrome 67-78+ on non-retina displays.\n\t\t\t * See https://github.com/ckeditor/ckeditor5/issues/1053.\n\t\t\t */\n\t\t\ttop: 100%;\n\t\t\tbottom: auto;\n\t\t}\n\n\t\t&.ck-dropdown__panel_ne,\n\t\t&.ck-dropdown__panel_se {\n\t\t\tleft: 0px;\n\t\t}\n\n\t\t&.ck-dropdown__panel_nw,\n\t\t&.ck-dropdown__panel_sw {\n\t\t\tright: 0px;\n\t\t}\n\n\t\t&.ck-dropdown__panel_s,\n\t\t&.ck-dropdown__panel_n {\n\t\t\t/* Positioning panels relative to the center of the button */\n\t\t\tleft: 50%;\n\t\t\ttransform: translateX(-50%);\n\t\t}\n\n\t\t&.ck-dropdown__panel_nmw,\n\t\t&.ck-dropdown__panel_smw {\n\t\t\t/* Positioning panels relative to the middle-west of the button */\n\t\t\tleft: 75%;\n\t\t\ttransform: translateX(-75%);\n\t\t}\n\n\t\t&.ck-dropdown__panel_nme,\n\t\t&.ck-dropdown__panel_sme {\n\t\t\t/* Positioning panels relative to the middle-east of the button */\n\t\t\tleft: 25%;\n\t\t\ttransform: translateX(-25%);\n\t\t}\n\t}\n}\n\n/*\n * Toolbar dropdown panels should be always above the UI (eg. other dropdown panels) from the editor's content.\n * See https://github.com/ckeditor/ckeditor5/issues/7874\n */\n.ck.ck-toolbar .ck-dropdown__panel {\n\tz-index: calc( var(--ck-z-modal) + 1 );\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_disabled.css";\n@import "../../../mixins/_shadow.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n:root {\n\t--ck-dropdown-arrow-size: calc(0.5 * var(--ck-icon-size));\n}\n\n.ck.ck-dropdown {\n\t/* Enable font size inheritance, which allows fluid UI scaling. */\n\tfont-size: inherit;\n\n\t& .ck-dropdown__arrow {\n\t\twidth: var(--ck-dropdown-arrow-size);\n\t}\n\n\t@mixin ck-dir ltr {\n\t\t& .ck-dropdown__arrow {\n\t\t\tright: var(--ck-spacing-standard);\n\n\t\t\t/* A space to accommodate the triangle. */\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-dir rtl {\n\t\t& .ck-dropdown__arrow {\n\t\t\tleft: var(--ck-spacing-standard);\n\n\t\t\t/* A space to accommodate the triangle. */\n\t\t\tmargin-right: var(--ck-spacing-small);\n\t\t}\n\t}\n\n\t&.ck-disabled .ck-dropdown__arrow {\n\t\t@mixin ck-disabled;\n\t}\n\n\t& .ck-button.ck-dropdown__button {\n\t\t@mixin ck-dir ltr {\n\t\t\t&:not(.ck-button_with-text) {\n\t\t\t\t/* Make sure dropdowns with just an icon have the right inner spacing */\n\t\t\t\tpadding-left: var(--ck-spacing-small);\n\t\t\t}\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\t&:not(.ck-button_with-text) {\n\t\t\t\t/* Make sure dropdowns with just an icon have the right inner spacing */\n\t\t\t\tpadding-right: var(--ck-spacing-small);\n\t\t\t}\n\t\t}\n\n\t\t/* #23 */\n\t\t& .ck-button__label {\n\t\t\twidth: 7em;\n\t\t\toverflow: hidden;\n\t\t\ttext-overflow: ellipsis;\n\t\t}\n\n\t\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/70 */\n\t\t&.ck-disabled .ck-button__label {\n\t\t\t@mixin ck-disabled;\n\t\t}\n\n\t\t/* https://github.com/ckeditor/ckeditor5/issues/816 */\n\t\t&.ck-on {\n\t\t\tborder-bottom-left-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\n\t\t&.ck-dropdown__button_label-width_auto .ck-button__label {\n\t\t\twidth: auto;\n\t\t}\n\n\t\t/* https://github.com/ckeditor/ckeditor5/issues/8699 */\n\t\t&.ck-off:active,\n\t\t&.ck-on:active {\n\t\t\tbox-shadow: none;\n\t\t\t\n\t\t\t&:focus {\n\t\t\t\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\n\t\t\t}\n\t\t}\n\t}\n}\n\n.ck.ck-dropdown__panel {\n\t@mixin ck-rounded-corners;\n\t@mixin ck-drop-shadow;\n\n\tbackground: var(--ck-color-dropdown-panel-background);\n\tborder: 1px solid var(--ck-color-dropdown-panel-border);\n\tbottom: 0;\n\n\t/* Make sure the panel is at least as wide as the drop-down\'s button. */\n\tmin-width: 100%;\n\n\t/* Disabled corner border radius to be consistent with the .dropdown__button\n\thttps://github.com/ckeditor/ckeditor5/issues/816 */\n\t&.ck-dropdown__panel_se {\n\t\tborder-top-left-radius: 0;\n\t}\n\n\t&.ck-dropdown__panel_sw {\n\t\tborder-top-right-radius: 0;\n\t}\n\n\t&.ck-dropdown__panel_ne {\n\t\tborder-bottom-left-radius: 0;\n\t}\n\n\t&.ck-dropdown__panel_nw {\n\t\tborder-bottom-right-radius: 0;\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-splitbutton {\n\t/* Enable font size inheritance, which allows fluid UI scaling. */\n\tfont-size: inherit;\n\n\t& .ck-splitbutton__action:focus {\n\t\tz-index: calc(var(--ck-z-default) + 1);\n\t}\n}\n\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n\n:root {\n\t--ck-color-split-button-hover-background: hsl(0, 0%, 92%);\n\t--ck-color-split-button-hover-border: hsl(0, 0%, 70%);\n}\n\n.ck.ck-splitbutton {\n\t/*\n\t * Note: ck-rounded and ck-dir mixins don\'t go together (because they both use @nest).\n\t */\n\t&:hover > .ck-splitbutton__action,\n\t&.ck-splitbutton_open > .ck-splitbutton__action {\n\t\t@nest [dir="ltr"] & {\n\t\t\t/* Don\'t round the action button on the right side */\n\t\t\tborder-top-right-radius: unset;\n\t\t\tborder-bottom-right-radius: unset;\n\t\t}\n\n\t\t@nest [dir="rtl"] & {\n\t\t\t/* Don\'t round the action button on the left side */\n\t\t\tborder-top-left-radius: unset;\n\t\t\tborder-bottom-left-radius: unset;\n\t\t}\n\t}\n\n\t& > .ck-splitbutton__arrow {\n\t\t/* It\'s a text-less button and since the icon is positioned absolutely in such situation,\n\t\tit must get some arbitrary min-width. */\n\t\tmin-width: unset;\n\n\t\t@nest [dir="ltr"] & {\n\t\t\t/* Don\'t round the arrow button on the left side */\n\t\t\tborder-top-left-radius: unset;\n\t\t\tborder-bottom-left-radius: unset;\n\t\t}\n\n\t\t@nest [dir="rtl"] & {\n\t\t\t/* Don\'t round the arrow button on the right side */\n\t\t\tborder-top-right-radius: unset;\n\t\t\tborder-bottom-right-radius: unset;\n\t\t}\n\n\t\t& svg {\n\t\t\twidth: var(--ck-dropdown-arrow-size);\n\t\t}\n\t}\n\n\t/* Make sure the divider stretches 100% height of the button\n\thttps://github.com/ckeditor/ckeditor5/issues/10936 */\n\t& > .ck-splitbutton__arrow:not(:focus) {\n\t\tborder-top-width: 0px;\n\t\tborder-bottom-width: 0px;\n\t}\n\n\t/* When the split button is "open" (the arrow is on) or being hovered, it should get some styling\n\tas a whole. The background of both buttons should stand out and there should be a visual\n\tseparation between both buttons. */\n\t&.ck-splitbutton_open,\n\t&:hover {\n\t\t/* When the split button hovered as a whole, not as individual buttons. */\n\t\t& > .ck-button:not(.ck-on):not(.ck-disabled):not(:hover) {\n\t\t\tbackground: var(--ck-color-split-button-hover-background);\n\t\t}\n\n\t\t/* Splitbutton separator needs to be set with the ::after pseudoselector\n\t\tto display properly the borders on focus */\n\t\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\n\t\t\tcontent: \'\';\n\t\t\tposition: absolute;\n\t\t\twidth: 1px;\n\t\t\theight: 100%;\n\t\t\tbackground-color: var(--ck-color-split-button-hover-border);\n\t\t}\n\n\t\t/* Make sure the divider between the buttons looks fine when the button is focused */\n\t\t& > .ck-splitbutton__arrow:focus::after {\n\t\t\t--ck-color-split-button-hover-border: var(--ck-color-focus-border);\n\t\t}\n\n\t\t@nest [dir="ltr"] & {\n\t\t\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\n\t\t\t\tleft: -1px;\n\t\t\t}\n\t\t}\n\n\t\t@nest [dir="rtl"] & {\n\t\t\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\n\t\t\t\tright: -1px;\n\t\t\t}\n\t\t}\n\t}\n\n\t/* Don\'t round the bottom left and right corners of the buttons when "open"\n\thttps://github.com/ckeditor/ckeditor5/issues/816 */\n\t&.ck-splitbutton_open {\n\t\t@mixin ck-rounded-corners {\n\t\t\t& > .ck-splitbutton__action {\n\t\t\t\tborder-bottom-left-radius: 0;\n\t\t\t}\n\n\t\t\t& > .ck-splitbutton__arrow {\n\t\t\t\tborder-bottom-right-radius: 0;\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},7339:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-toolbar-dropdown-max-width:60vw}.ck.ck-toolbar-dropdown>.ck-dropdown__panel{max-width:var(--ck-toolbar-dropdown-max-width);width:max-content}.ck.ck-toolbar-dropdown>.ck-dropdown__panel .ck-button:focus{z-index:calc(var(--ck-z-default) + 1)}.ck.ck-toolbar-dropdown .ck-toolbar{border:0}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/dropdown/toolbardropdown.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/toolbardropdown.css"],names:[],mappings:"AAKA,MACC,oCACD,CAEA,4CAGC,8CAA+C,CAD/C,iBAQD,CAJE,6DACC,qCACD,CCZF,oCACC,QACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-toolbar-dropdown-max-width: 60vw;\n}\n\n.ck.ck-toolbar-dropdown > .ck-dropdown__panel {\n\t/* https://github.com/ckeditor/ckeditor5/issues/5586 */\n\twidth: max-content;\n\tmax-width: var(--ck-toolbar-dropdown-max-width);\n\n\t& .ck-button {\n\t\t&:focus {\n\t\t\tz-index: calc(var(--ck-z-default) + 1);\n\t\t}\n\t}\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_disabled.css";\n@import "../../../mixins/_shadow.css";\n@import "../../../mixins/_focus.css";\n@import "../../mixins/_button.css";\n\n:root {\n\t--ck-color-editable-blur-selection: hsl(0, 0%, 85%);\n}\n\n.ck.ck-editor__editable:not(.ck-editor__nested-editable) {\n\t@mixin ck-rounded-corners;\n\n\t&.ck-focused {\n\t\t@mixin ck-focus-ring;\n\t\t@mixin ck-box-shadow var(--ck-inner-shadow);\n\t}\n}\n\n.ck.ck-editor__editable_inline {\n\toverflow: auto;\n\tpadding: 0 var(--ck-spacing-standard);\n\tborder: 1px solid transparent;\n\n\t&[dir="ltr"] {\n\t\ttext-align: left;\n\t}\n\n\t&[dir="rtl"] {\n\t\ttext-align: right;\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/116 */\n\t& > *:first-child {\n\t\tmargin-top: var(--ck-spacing-large);\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5/issues/847 */\n\t& > *:last-child {\n\t\t/*\n\t\t * This value should match with the default margins of the block elements (like .media or .image)\n\t\t * to avoid a content jumping when the fake selection container shows up (See https://github.com/ckeditor/ckeditor5/issues/9825).\n\t\t */\n\t\tmargin-bottom: var(--ck-spacing-large);\n\t}\n\n\t/* https://github.com/ckeditor/ckeditor5/issues/6517 */\n\t&.ck-blurred ::selection {\n\t\tbackground: var(--ck-color-editable-blur-selection);\n\t}\n}\n\n/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/111 */\n.ck.ck-balloon-panel.ck-toolbar-container[class*="arrow_n"] {\n\t&::after {\n\t\tborder-bottom-color: var(--ck-color-base-foreground);\n\t}\n}\n\n.ck.ck-balloon-panel.ck-toolbar-container[class*="arrow_s"] {\n\t&::after {\n\t\tborder-top-color: var(--ck-color-base-foreground);\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},8847:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-form__header{align-items:center;display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:space-between}:root{--ck-form-header-height:38px}.ck.ck-form__header{border-bottom:1px solid var(--ck-color-base-border);height:var(--ck-form-header-height);line-height:var(--ck-form-header-height);padding:var(--ck-spacing-small) var(--ck-spacing-large)}.ck.ck-form__header .ck-form__header__label{font-weight:700}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/formheader/formheader.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/formheader/formheader.css"],names:[],mappings:"AAKA,oBAIC,kBAAmB,CAHnB,YAAa,CACb,kBAAmB,CACnB,gBAAiB,CAEjB,6BACD,CCNA,MACC,4BACD,CAEA,oBAIC,mDAAoD,CAFpD,mCAAoC,CACpC,wCAAyC,CAFzC,uDAQD,CAHC,4CACC,eACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-form-header-height: 38px;\n}\n\n.ck.ck-form__header {\n\tpadding: var(--ck-spacing-small) var(--ck-spacing-large);\n\theight: var(--ck-form-header-height);\n\tline-height: var(--ck-form-header-height);\n\tborder-bottom: 1px solid var(--ck-color-base-border);\n\n\t& .ck-form__header__label {\n\t\tfont-weight: bold;\n\t}\n}\n"],sourceRoot:""}]);const a=s},6574:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-icon{vertical-align:middle}:root{--ck-icon-size:calc(var(--ck-line-height-base)*var(--ck-font-size-normal))}.ck.ck-icon{font-size:.8333350694em;height:var(--ck-icon-size);width:var(--ck-icon-size);will-change:transform}.ck.ck-icon,.ck.ck-icon *{cursor:inherit}.ck.ck-icon.ck-icon_inherit-color,.ck.ck-icon.ck-icon_inherit-color *{color:inherit}.ck.ck-icon.ck-icon_inherit-color :not([fill]){fill:currentColor}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/icon/icon.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/icon/icon.css"],names:[],mappings:"AAKA,YACC,qBACD,CCFA,MACC,0EACD,CAEA,YAKC,uBAAwB,CAHxB,0BAA2B,CAD3B,yBAA0B,CAU1B,qBAoBD,CAlBC,0BALA,cAQA,CAMC,sEACC,aAMD,CAJC,+CAEC,iBACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_focus.css";\n@import "../../../mixins/_shadow.css";\n\n:root {\n\t--ck-input-width: 18em;\n\n\t/* Backward compatibility. */\n\t--ck-input-text-width: var(--ck-input-width);\n}\n\n.ck.ck-input {\n\t@mixin ck-rounded-corners;\n\n\tbackground: var(--ck-color-input-background);\n\tborder: 1px solid var(--ck-color-input-border);\n\tpadding: var(--ck-spacing-extra-tiny) var(--ck-spacing-medium);\n\tmin-width: var(--ck-input-width);\n\n\t/* This is important to stay of the same height as surrounding buttons */\n\tmin-height: var(--ck-ui-component-min-height);\n\n\t/* Apply some smooth transition to the box-shadow and border. */\n\ttransition: box-shadow .1s ease-in-out, border .1s ease-in-out;\n\n\t&:focus {\n\t\t@mixin ck-focus-ring;\n\t\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\n\t}\n\n\t&[readonly] {\n\t\tborder: 1px solid var(--ck-color-input-disabled-border);\n\t\tbackground: var(--ck-color-input-disabled-background);\n\t\tcolor: var(--ck-color-input-disabled-text);\n\n\t\t&:focus {\n\t\t\t/* The read-only input should have a slightly less visible shadow when focused. */\n\t\t\t@mixin ck-box-shadow var(--ck-focus-disabled-outer-shadow);\n\t\t}\n\t}\n\n\t&.ck-error {\n\t\tborder-color: var(--ck-color-input-error-border);\n\t\tanimation: ck-input-shake .3s ease both;\n\n\t\t&:focus {\n\t\t\t@mixin ck-box-shadow var(--ck-focus-error-outer-shadow);\n\t\t}\n\t}\n}\n\n@keyframes ck-input-shake {\n\t20% {\n\t\ttransform: translateX(-2px);\n\t}\n\n\t40% {\n\t\ttransform: translateX(2px);\n\t}\n\n\t60% {\n\t\ttransform: translateX(-1px);\n\t}\n\n\t80% {\n\t\ttransform: translateX(1px);\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},3662:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-label{display:block}.ck.ck-voice-label{display:none}.ck.ck-label{font-weight:700}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/label/label.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/label/label.css"],names:[],mappings:"AAKA,aACC,aACD,CAEA,mBACC,YACD,CCNA,aACC,eACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-label {\n\tdisplay: block;\n}\n\n.ck.ck-voice-label {\n\tdisplay: none;\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-label {\n\tfont-weight: bold;\n}\n"],sourceRoot:""}]);const a=s},2577:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{display:flex;position:relative}.ck.ck-labeled-field-view .ck.ck-label{display:block;position:absolute}:root{--ck-labeled-field-view-transition:.1s cubic-bezier(0,0,0.24,0.95);--ck-labeled-field-empty-unfocused-max-width:100% - 2 * var(--ck-spacing-medium);--ck-labeled-field-label-default-position-x:var(--ck-spacing-medium);--ck-labeled-field-label-default-position-y:calc(var(--ck-font-size-base)*0.6);--ck-color-labeled-field-label-background:var(--ck-color-base-background)}.ck.ck-labeled-field-view{border-radius:0}.ck-rounded-corners .ck.ck-labeled-field-view,.ck.ck-labeled-field-view.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{width:100%}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{top:0}[dir=ltr] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{left:0}[dir=rtl] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{right:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:var(--ck-color-labeled-field-label-background);font-weight:400;line-height:normal;max-width:100%;overflow:hidden;padding:0 calc(var(--ck-font-size-tiny)*.5);pointer-events:none;text-overflow:ellipsis;transform:translate(var(--ck-spacing-medium),-6px) scale(.75);transform-origin:0 0;transition:transform var(--ck-labeled-field-view-transition),padding var(--ck-labeled-field-view-transition),background var(--ck-labeled-field-view-transition)}.ck.ck-labeled-field-view.ck-error .ck-input:not([readonly])+.ck.ck-label,.ck.ck-labeled-field-view.ck-error>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view .ck-labeled-field-view__status{font-size:var(--ck-font-size-small);margin-top:var(--ck-spacing-small);white-space:normal}.ck.ck-labeled-field-view .ck-labeled-field-view__status.ck-labeled-field-view__status_error{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view.ck-disabled>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-input-disabled-text)}[dir=ltr] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=ltr] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(var(--ck-labeled-field-label-default-position-x),var(--ck-labeled-field-label-default-position-y)) scale(1)}[dir=rtl] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=rtl] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(calc(var(--ck-labeled-field-label-default-position-x)*-1),var(--ck-labeled-field-label-default-position-y)) scale(1)}.ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:transparent;max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width));padding:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck.ck-button{background:transparent}.ck.ck-labeled-field-view.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck-button>.ck-button__label{opacity:0}.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown+.ck-label{max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width) - 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-labeled-field-view {\n\t& > .ck.ck-labeled-field-view__input-wrapper {\n\t\tdisplay: flex;\n\t\tposition: relative;\n\t}\n\n\t& .ck.ck-label {\n\t\tdisplay: block;\n\t\tposition: absolute;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n@import "../../../mixins/_rounded.css";\n\n:root {\n\t--ck-labeled-field-view-transition: .1s cubic-bezier(0, 0, 0.24, 0.95);\n\t--ck-labeled-field-empty-unfocused-max-width: 100% - 2 * var(--ck-spacing-medium);\n\t--ck-labeled-field-label-default-position-x: var(--ck-spacing-medium);\n\t--ck-labeled-field-label-default-position-y: calc(0.6 * var(--ck-font-size-base));\n\t--ck-color-labeled-field-label-background: var(--ck-color-base-background);\n}\n\n.ck.ck-labeled-field-view {\n\t@mixin ck-rounded-corners;\n\n\t& > .ck.ck-labeled-field-view__input-wrapper {\n\t\twidth: 100%;\n\n\t\t& > .ck.ck-label {\n\t\t\ttop: 0px;\n\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tleft: 0px;\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tright: 0px;\n\t\t\t}\n\n\t\t\tpointer-events: none;\n\t\t\ttransform-origin: 0 0;\n\n\t\t\t/* By default, display the label scaled down above the field. */\n\t\t\ttransform: translate(var(--ck-spacing-medium), -6px) scale(.75);\n\n\t\t\tbackground: var(--ck-color-labeled-field-label-background);\n\t\t\tpadding: 0 calc(.5 * var(--ck-font-size-tiny));\n\t\t\tline-height: initial;\n\t\t\tfont-weight: normal;\n\n\t\t\t/* Prevent overflow when the label is longer than the input */\n\t\t\ttext-overflow: ellipsis;\n\t\t\toverflow: hidden;\n\n\t\t\tmax-width: 100%;\n\n\t\t\ttransition:\n\t\t\t\ttransform var(--ck-labeled-field-view-transition),\n\t\t\t\tpadding var(--ck-labeled-field-view-transition),\n\t\t\t\tbackground var(--ck-labeled-field-view-transition);\n\t\t}\n\t}\n\n\t&.ck-error {\n\t\t& > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\n\t\t\tcolor: var(--ck-color-base-error);\n\t\t}\n\n\t\t& .ck-input:not([readonly]) + .ck.ck-label {\n\t\t\tcolor: var(--ck-color-base-error);\n\t\t}\n\t}\n\n\t& .ck-labeled-field-view__status {\n\t\tfont-size: var(--ck-font-size-small);\n\t\tmargin-top: var(--ck-spacing-small);\n\n\t\t/* Let the info wrap to the next line to avoid stretching the layout horizontally.\n\t\tThe status could be very long. */\n\t\twhite-space: normal;\n\n\t\t&.ck-labeled-field-view__status_error {\n\t\t\tcolor: var(--ck-color-base-error);\n\t\t}\n\t}\n\n\t/* Disabled fields and fields that have no focus should fade out. */\n\t&.ck-disabled > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\n\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\n\t\tcolor: var(--ck-color-input-disabled-text);\n\t}\n\n\t/* Fields that are disabled or not focused and without a placeholder should have full-sized labels. */\n\t/* stylelint-disable-next-line no-descending-specificity */\n\t&.ck-disabled.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\n\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\n\t\t@mixin ck-dir ltr {\n\t\t\ttransform: translate(var(--ck-labeled-field-label-default-position-x), var(--ck-labeled-field-label-default-position-y)) scale(1);\n\t\t}\n\n\t\t@mixin ck-dir rtl {\n\t\t\ttransform: translate(calc(-1 * var(--ck-labeled-field-label-default-position-x)), var(--ck-labeled-field-label-default-position-y)) scale(1);\n\t\t}\n\n\t\t/* Compensate for the default translate position. */\n\t\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width));\n\n\t\tbackground: transparent;\n\t\tpadding: 0;\n\t}\n\n\t/*------ DropdownView integration ----------------------------------------------------------------------------------- */\n\n\t/* Make sure dropdown\' background color in any of dropdown\'s state does not collide with labeled field. */\n\t& > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck.ck-button {\n\t\tbackground: transparent;\n\t}\n\n\t/* When the dropdown is "empty", the labeled field label replaces its label. */\n\t&.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck-button > .ck-button__label {\n\t\topacity: 0;\n\t}\n\n\t/* Make sure the label of the empty, unfocused input does not cover the dropdown arrow. */\n\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown + .ck-label {\n\t\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width) - var(--ck-dropdown-arrow-size) - var(--ck-spacing-standard));\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},1046:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-list{display:flex;flex-direction:column;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-list .ck-list__item,.ck.ck-list .ck-list__separator{display:block}.ck.ck-list .ck-list__item>:focus{position:relative;z-index:var(--ck-z-default)}.ck.ck-list{border-radius:0}.ck-rounded-corners .ck.ck-list,.ck.ck-list.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-list{background:var(--ck-color-list-background);list-style-type:none}.ck.ck-list__item{cursor:default;min-width:12em}.ck.ck-list__item .ck-button{border-radius:0;min-height:unset;padding:calc(var(--ck-line-height-base)*.2*var(--ck-font-size-base)) calc(var(--ck-line-height-base)*.4*var(--ck-font-size-base));text-align:left;width:100%}.ck.ck-list__item .ck-button .ck-button__label{line-height:calc(var(--ck-line-height-base)*1.2*var(--ck-font-size-base))}.ck.ck-list__item .ck-button:active{box-shadow:none}.ck.ck-list__item .ck-button.ck-on{background:var(--ck-color-list-button-on-background);color:var(--ck-color-list-button-on-text)}.ck.ck-list__item .ck-button.ck-on:active{box-shadow:none}.ck.ck-list__item .ck-button.ck-on:hover:not(.ck-disabled){background:var(--ck-color-list-button-on-background-focus)}.ck.ck-list__item .ck-button.ck-on:focus:not(.ck-switchbutton):not(.ck-disabled){border-color:var(--ck-color-base-background)}.ck.ck-list__item .ck-button:hover:not(.ck-disabled){background:var(--ck-color-list-button-hover-background)}.ck.ck-list__item .ck-switchbutton.ck-on{background:var(--ck-color-list-background);color:inherit}.ck.ck-list__item .ck-switchbutton.ck-on:hover:not(.ck-disabled){background:var(--ck-color-list-button-hover-background);color:inherit}.ck.ck-list__separator{background:var(--ck-color-base-border);height:1px;width:100%}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/list/list.css","webpack://./../ckeditor5-ui/theme/mixins/_unselectable.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/list/list.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css"],names:[],mappings:"AAOA,YAGC,YAAa,CACb,qBAAsB,CCFtB,qBAAsB,CACtB,wBAAyB,CACzB,oBAAqB,CACrB,gBDaD,CAZC,2DAEC,aACD,CAKA,kCACC,iBAAkB,CAClB,2BACD,CEfD,YCEC,eDGD,CALA,+DCME,qCDDF,CALA,YAIC,0CAA2C,CAD3C,oBAED,CAEA,kBACC,cAAe,CACf,cA2DD,CAzDC,6BAIC,eAAgB,CAHhB,gBAAiB,CAQjB,iIAEiE,CARjE,eAAgB,CADhB,UAwCD,CA7BC,+CAEC,yEACD,CAEA,oCACC,eACD,CAEA,mCACC,oDAAqD,CACrD,yCAaD,CAXC,0CACC,eACD,CAEA,2DACC,0DACD,CAEA,iFACC,4CACD,CAGD,qDACC,uDACD,CAMA,yCACC,0CAA2C,CAC3C,aAMD,CAJC,iEACC,uDAAwD,CACxD,aACD,CAKH,uBAGC,sCAAuC,CAFvC,UAAW,CACX,UAED",sourcesContent:['/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../mixins/_unselectable.css";\n\n.ck.ck-list {\n\t@mixin ck-unselectable;\n\n\tdisplay: flex;\n\tflex-direction: column;\n\n\t& .ck-list__item,\n\t& .ck-list__separator {\n\t\tdisplay: block;\n\t}\n\n\t/* Make sure that whatever child of the list item gets focus, it remains on the\n\ttop. Thanks to that, styles like box-shadow, outline, etc. are not masked by\n\tadjacent list items. */\n\t& .ck-list__item > *:focus {\n\t\tposition: relative;\n\t\tz-index: var(--ck-z-default);\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Makes element unselectable.\n */\n@define-mixin ck-unselectable {\n\t-moz-user-select: none;\n\t-webkit-user-select: none;\n\t-ms-user-select: none;\n\tuser-select: none\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_disabled.css";\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_shadow.css";\n\n.ck.ck-list {\n\t@mixin ck-rounded-corners;\n\n\tlist-style-type: none;\n\tbackground: var(--ck-color-list-background);\n}\n\n.ck.ck-list__item {\n\tcursor: default;\n\tmin-width: 12em;\n\n\t& .ck-button {\n\t\tmin-height: unset;\n\t\twidth: 100%;\n\t\ttext-align: left;\n\t\tborder-radius: 0;\n\n\t\t/* List items should have the same height. Use absolute units to make sure it is so\n\t\t   because e.g. different heading styles may have different height\n\t\t   https://github.com/ckeditor/ckeditor5-heading/issues/63 */\n\t\tpadding:\n\t\t\tcalc(.2 * var(--ck-line-height-base) * var(--ck-font-size-base))\n\t\t\tcalc(.4 * var(--ck-line-height-base) * var(--ck-font-size-base));\n\n\t\t& .ck-button__label {\n\t\t\t/* https://github.com/ckeditor/ckeditor5-heading/issues/63 */\n\t\t\tline-height: calc(1.2 * var(--ck-line-height-base) * var(--ck-font-size-base));\n\t\t}\n\n\t\t&:active {\n\t\t\tbox-shadow: none;\n\t\t}\n\n\t\t&.ck-on {\n\t\t\tbackground: var(--ck-color-list-button-on-background);\n\t\t\tcolor: var(--ck-color-list-button-on-text);\n\n\t\t\t&:active {\n\t\t\t\tbox-shadow: none;\n\t\t\t}\n\n\t\t\t&:hover:not(.ck-disabled) {\n\t\t\t\tbackground: var(--ck-color-list-button-on-background-focus);\n\t\t\t}\n\n\t\t\t&:focus:not(.ck-switchbutton):not(.ck-disabled) {\n\t\t\t\tborder-color: var(--ck-color-base-background);\n\t\t\t}\n\t\t}\n\n\t\t&:hover:not(.ck-disabled) {\n\t\t\tbackground: var(--ck-color-list-button-hover-background);\n\t\t}\n\t}\n\n\t/* It\'s unnecessary to change the background/text of a switch toggle; it has different ways\n\tof conveying its state (like the switcher) */\n\t& .ck-switchbutton {\n\t\t&.ck-on {\n\t\t\tbackground: var(--ck-color-list-background);\n\t\t\tcolor: inherit;\n\n\t\t\t&:hover:not(.ck-disabled) {\n\t\t\t\tbackground: var(--ck-color-list-button-hover-background);\n\t\t\t\tcolor: inherit;\n\t\t\t}\n\t\t}\n\t}\n}\n\n.ck.ck-list__separator {\n\theight: 1px;\n\twidth: 100%;\n\tbackground: var(--ck-color-base-border);\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n"],sourceRoot:""}]);const a=s},8793:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,':root{--ck-balloon-panel-arrow-z-index:calc(var(--ck-z-default) - 3)}.ck.ck-balloon-panel{display:none;position:absolute;z-index:var(--ck-z-modal)}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after,.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{content:"";position:absolute}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel[class*=arrow_n]:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel[class*=arrow_n]:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel[class*=arrow_s]:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel[class*=arrow_s]:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel.ck-balloon-panel_visible{display:block}:root{--ck-balloon-border-width:1px;--ck-balloon-arrow-offset:2px;--ck-balloon-arrow-height:10px;--ck-balloon-arrow-half-width:8px;--ck-balloon-arrow-drop-shadow:0 2px 2px var(--ck-color-shadow-drop)}.ck.ck-balloon-panel{border-radius:0}.ck-rounded-corners .ck.ck-balloon-panel,.ck.ck-balloon-panel.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-balloon-panel{background:var(--ck-color-panel-background);border:var(--ck-balloon-border-width) solid var(--ck-color-panel-border);box-shadow:var(--ck-drop-shadow),0 0;min-height:15px}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after,.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{border-style:solid;height:0;width:0}.ck.ck-balloon-panel[class*=arrow_n]:after,.ck.ck-balloon-panel[class*=arrow_n]:before{border-width:0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width)}.ck.ck-balloon-panel[class*=arrow_n]:before{border-color:transparent transparent var(--ck-color-panel-border) transparent;margin-top:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_n]:after{border-color:transparent transparent var(--ck-color-panel-background) transparent;margin-top:calc(var(--ck-balloon-arrow-offset) - 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t/* Make sure the balloon arrow does not float over its children. */\n\t--ck-balloon-panel-arrow-z-index: calc(var(--ck-z-default) - 3);\n}\n\n.ck.ck-balloon-panel {\n\tdisplay: none;\n\tposition: absolute;\n\n\tz-index: var(--ck-z-modal);\n\n\t&.ck-balloon-panel_with-arrow {\n\t\t&::before,\n\t\t&::after {\n\t\t\tcontent: "";\n\t\t\tposition: absolute;\n\t\t}\n\n\t\t&::before {\n\t\t\tz-index: var(--ck-balloon-panel-arrow-z-index);\n\t\t}\n\n\t\t&::after {\n\t\t\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\n\t\t}\n\t}\n\n\t&[class*="arrow_n"] {\n\t\t&::before {\n\t\t\tz-index: var(--ck-balloon-panel-arrow-z-index);\n\t\t}\n\n\t\t&::after {\n\t\t\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\n\t\t}\n\t}\n\n\t&[class*="arrow_s"] {\n\t\t&::before {\n\t\t\tz-index: var(--ck-balloon-panel-arrow-z-index);\n\t\t}\n\n\t\t&::after {\n\t\t\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_visible {\n\t\tdisplay: block;\n\t}\n}\n','/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "../../../mixins/_shadow.css";\n\n:root {\n\t--ck-balloon-border-width: 1px;\n\t--ck-balloon-arrow-offset: 2px;\n\t--ck-balloon-arrow-height: 10px;\n\t--ck-balloon-arrow-half-width: 8px;\n\t--ck-balloon-arrow-drop-shadow: 0 2px 2px var(--ck-color-shadow-drop);\n}\n\n.ck.ck-balloon-panel {\n\t@mixin ck-rounded-corners;\n\t@mixin ck-drop-shadow;\n\n\tmin-height: 15px;\n\n\tbackground: var(--ck-color-panel-background);\n\tborder: var(--ck-balloon-border-width) solid var(--ck-color-panel-border);\n\n\t&.ck-balloon-panel_with-arrow {\n\t\t&::before,\n\t\t&::after {\n\t\t\twidth: 0;\n\t\t\theight: 0;\n\t\t\tborder-style: solid;\n\t\t}\n\t}\n\n\t&[class*="arrow_n"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width);\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: transparent transparent var(--ck-color-panel-border) transparent;\n\t\t\tmargin-top: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: transparent transparent var(--ck-color-panel-background) transparent;\n\t\t\tmargin-top: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&[class*="arrow_s"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width);\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: var(--ck-color-panel-border) transparent transparent;\n\t\t\tfilter: drop-shadow(var(--ck-balloon-arrow-drop-shadow));\n\t\t\tmargin-bottom: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: var(--ck-color-panel-background) transparent transparent transparent;\n\t\t\tmargin-bottom: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&[class*="arrow_e"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height);\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: transparent transparent transparent var(--ck-color-panel-border);\n\t\t\tmargin-right: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: transparent transparent transparent var(--ck-color-panel-background);\n\t\t\tmargin-right: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&[class*="arrow_w"] {\n\t\t&::before,\n\t\t&::after {\n\t\t\tborder-width: var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0;\n\t\t}\n\n\t\t&::before {\n\t\t\tborder-color: transparent var(--ck-color-panel-border) transparent transparent;\n\t\t\tmargin-left: calc( -1 * var(--ck-balloon-border-width) );\n\t\t}\n\n\t\t&::after {\n\t\t\tborder-color: transparent var(--ck-color-panel-background) transparent transparent;\n\t\t\tmargin-left: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_n {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 50%;\n\t\t\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_nw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_ne {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_s {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 50%;\n\t\t\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_sw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_se {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_sme {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: 25%;\n\t\t\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_smw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 25%;\n\t\t\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_nme {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: 25%;\n\t\t\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_nmw {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: 25%;\n\t\t\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_e {\n\t\t&::before,\n\t\t&::after {\n\t\t\tright: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: 50%;\n\t\t}\n\t}\n\n\t&.ck-balloon-panel_arrow_w {\n\t\t&::before,\n\t\t&::after {\n\t\t\tleft: calc(-1 * var(--ck-balloon-arrow-height));\n\t\t\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\n\t\t\ttop: 50%;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Implements rounded corner interface for .ck-rounded-corners class.\n *\n * @see $ck-border-radius\n */\n@define-mixin ck-rounded-corners {\n\tborder-radius: 0;\n\n\t@nest .ck-rounded-corners &,\n\t&.ck-rounded-corners {\n\t\tborder-radius: var(--ck-border-radius);\n\t\t@mixin-content;\n\t}\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},4650:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck .ck-balloon-rotator__navigation{align-items:center;display:flex;justify-content:center}.ck .ck-balloon-rotator__content .ck-toolbar{justify-content:center}.ck .ck-balloon-rotator__navigation{background:var(--ck-color-toolbar-background);border-bottom:1px solid var(--ck-color-toolbar-border);padding:0 var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation>*{margin-bottom:var(--ck-spacing-small);margin-right:var(--ck-spacing-small);margin-top:var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation .ck-balloon-rotator__counter{margin-left:var(--ck-spacing-small);margin-right:var(--ck-spacing-standard)}.ck .ck-balloon-rotator__content .ck.ck-annotation-wrapper{box-shadow:none}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/panel/balloonrotator.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/balloonrotator.css"],names:[],mappings:"AAKA,oCAEC,kBAAmB,CADnB,YAAa,CAEb,sBACD,CAKA,6CACC,sBACD,CCXA,oCACC,6CAA8C,CAC9C,sDAAuD,CACvD,iCAgBD,CAbC,sCAGC,qCAAsC,CAFtC,oCAAqC,CACrC,kCAED,CAGA,iEAIC,mCAAoC,CAHpC,uCAID,CAMA,2DACC,eACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-balloon-rotator__navigation {\n\tdisplay: flex;\n\talign-items: center;\n\tjustify-content: center;\n}\n\n/* Buttons inside a toolbar should be centered when rotator bar is wider.\n * See: https://github.com/ckeditor/ckeditor5-ui/issues/495\n */\n.ck .ck-balloon-rotator__content .ck-toolbar {\n\tjustify-content: center;\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-balloon-rotator__navigation {\n\tbackground: var(--ck-color-toolbar-background);\n\tborder-bottom: 1px solid var(--ck-color-toolbar-border);\n\tpadding: 0 var(--ck-spacing-small);\n\n\t/* Let's keep similar appearance to `ck-toolbar`. */\n\t& > * {\n\t\tmargin-right: var(--ck-spacing-small);\n\t\tmargin-top: var(--ck-spacing-small);\n\t\tmargin-bottom: var(--ck-spacing-small);\n\t}\n\n\t/* Gives counter more breath than buttons. */\n\t& .ck-balloon-rotator__counter {\n\t\tmargin-right: var(--ck-spacing-standard);\n\n\t\t/* We need to use smaller margin because of previous button's right margin. */\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n}\n\n.ck .ck-balloon-rotator__content {\n\n\t/* Disable default annotation shadow inside rotator with fake panels. */\n\t& .ck.ck-annotation-wrapper {\n\t\tbox-shadow: none;\n\t}\n}\n"],sourceRoot:""}]);const a=s},7676:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck .ck-fake-panel{position:absolute;z-index:calc(var(--ck-z-modal) - 1)}.ck .ck-fake-panel div{position:absolute}.ck .ck-fake-panel div:first-child{z-index:2}.ck .ck-fake-panel div:nth-child(2){z-index:1}:root{--ck-balloon-fake-panel-offset-horizontal:6px;--ck-balloon-fake-panel-offset-vertical:6px}.ck .ck-fake-panel div{background:var(--ck-color-panel-background);border:1px solid var(--ck-color-panel-border);border-radius:var(--ck-border-radius);box-shadow:var(--ck-drop-shadow),0 0;height:100%;min-height:15px;width:100%}.ck .ck-fake-panel div:first-child{margin-left:var(--ck-balloon-fake-panel-offset-horizontal);margin-top:var(--ck-balloon-fake-panel-offset-vertical)}.ck .ck-fake-panel div:nth-child(2){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*2);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*2)}.ck .ck-fake-panel div:nth-child(3){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*3);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*3)}.ck .ck-balloon-panel_arrow_s+.ck-fake-panel,.ck .ck-balloon-panel_arrow_se+.ck-fake-panel,.ck .ck-balloon-panel_arrow_sw+.ck-fake-panel{--ck-balloon-fake-panel-offset-vertical:-6px}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/panel/fakepanel.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/fakepanel.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css"],names:[],mappings:"AAKA,mBACC,iBAAkB,CAGlB,mCACD,CAEA,uBACC,iBACD,CAEA,mCACC,SACD,CAEA,oCACC,SACD,CCfA,MACC,6CAA8C,CAC9C,2CACD,CAGA,uBAKC,2CAA4C,CAC5C,6CAA8C,CAC9C,qCAAsC,CCXtC,oCAA8B,CDc9B,WAAY,CAPZ,eAAgB,CAMhB,UAED,CAEA,mCACC,0DAA2D,CAC3D,uDACD,CAEA,oCACC,kEAAqE,CACrE,+DACD,CACA,oCACC,kEAAqE,CACrE,+DACD,CAGA,yIAGC,4CACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-fake-panel {\n\tposition: absolute;\n\n\t/* Fake panels should be placed under main balloon content. */\n\tz-index: calc(var(--ck-z-modal) - 1);\n}\n\n.ck .ck-fake-panel div {\n\tposition: absolute;\n}\n\n.ck .ck-fake-panel div:nth-child( 1 ) {\n\tz-index: 2;\n}\n\n.ck .ck-fake-panel div:nth-child( 2 ) {\n\tz-index: 1;\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_shadow.css";\n\n:root {\n\t--ck-balloon-fake-panel-offset-horizontal: 6px;\n\t--ck-balloon-fake-panel-offset-vertical: 6px;\n}\n\n/* Let\'s use `.ck-balloon-panel` appearance. See: balloonpanel.css. */\n.ck .ck-fake-panel div {\n\t@mixin ck-drop-shadow;\n\n\tmin-height: 15px;\n\n\tbackground: var(--ck-color-panel-background);\n\tborder: 1px solid var(--ck-color-panel-border);\n\tborder-radius: var(--ck-border-radius);\n\n\twidth: 100%;\n\theight: 100%;\n}\n\n.ck .ck-fake-panel div:nth-child( 1 ) {\n\tmargin-left: var(--ck-balloon-fake-panel-offset-horizontal);\n\tmargin-top: var(--ck-balloon-fake-panel-offset-vertical);\n}\n\n.ck .ck-fake-panel div:nth-child( 2 ) {\n\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 2);\n\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 2);\n}\n.ck .ck-fake-panel div:nth-child( 3 ) {\n\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 3);\n\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 3);\n}\n\n/* If balloon is positioned above element, we need to move fake panel to the top. */\n.ck .ck-balloon-panel_arrow_s + .ck-fake-panel,\n.ck .ck-balloon-panel_arrow_se + .ck-fake-panel,\n.ck .ck-balloon-panel_arrow_sw + .ck-fake-panel {\n\t--ck-balloon-fake-panel-offset-vertical: -6px;\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A helper to combine multiple shadows.\n */\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\n\tbox-shadow: $shadowA, $shadowB;\n}\n\n/**\n * Gives an element a drop shadow so it looks like a floating panel.\n */\n@define-mixin ck-drop-shadow {\n\t@mixin ck-box-shadow var(--ck-drop-shadow);\n}\n"],sourceRoot:""}]);const a=s},5868:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-sticky-panel .ck-sticky-panel__content_sticky{position:fixed;top:0;z-index:var(--ck-z-modal)}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky_bottom-limit{position:absolute;top:auto}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky{border-top-left-radius:0;border-top-right-radius:0;border-width:0 1px 1px;box-shadow:var(--ck-drop-shadow),0 0}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/panel/stickypanel.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/stickypanel.css","webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css"],names:[],mappings:"AAMC,qDAEC,cAAe,CACf,KAAM,CAFN,yBAGD,CAEA,kEAEC,iBAAkB,CADlB,QAED,CCPA,qDAIC,wBAAyB,CACzB,yBAA0B,CAF1B,sBAAuB,CCFxB,oCDKA",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-sticky-panel {\n\t& .ck-sticky-panel__content_sticky {\n\t\tz-index: var(--ck-z-modal); /* #315 */\n\t\tposition: fixed;\n\t\ttop: 0;\n\t}\n\n\t& .ck-sticky-panel__content_sticky_bottom-limit {\n\t\ttop: auto;\n\t\tposition: absolute;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_shadow.css";\n\n.ck.ck-sticky-panel {\n\t& .ck-sticky-panel__content_sticky {\n\t\t@mixin ck-drop-shadow;\n\n\t\tborder-width: 0 1px 1px;\n\t\tborder-top-left-radius: 0;\n\t\tborder-top-right-radius: 0;\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n\n.ck-vertical-form .ck-button {\n\t&::after {\n\t\tcontent: "";\n\t\twidth: 0;\n\t\tposition: absolute;\n\t\tright: -1px;\n\t\ttop: -1px;\n\t\tbottom: -1px;\n\t\tz-index: 1;\n\t}\n\n\t&:focus::after {\n\t\tdisplay: none;\n\t}\n}\n\n.ck.ck-responsive-form {\n\t@mixin ck-media-phone {\n\t\t& .ck-button {\n\t\t\t&::after {\n\t\t\t\tcontent: "";\n\t\t\t\twidth: 0;\n\t\t\t\tposition: absolute;\n\t\t\t\tright: -1px;\n\t\t\t\ttop: -1px;\n\t\t\t\tbottom: -1px;\n\t\t\t\tz-index: 1;\n\t\t\t}\n\n\t\t\t&:focus::after {\n\t\t\t\tdisplay: none;\n\t\t\t}\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@define-mixin ck-media-phone {\n\t@media screen and (max-width: 600px) {\n\t\t@mixin-content;\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck-vertical-form > .ck-button:nth-last-child(2)::after {\n\tborder-right: 1px solid var(--ck-color-base-border);\n}\n\n.ck.ck-responsive-form {\n\tpadding: var(--ck-spacing-large);\n\n\t&:focus {\n\t\t/* See: https://github.com/ckeditor/ckeditor5/issues/4773 */\n\t\toutline: none;\n\t}\n\n\t@mixin ck-dir ltr {\n\t\t& > :not(:first-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-dir rtl {\n\t\t& > :not(:last-child) {\n\t\t\tmargin-left: var(--ck-spacing-standard);\n\t\t}\n\t}\n\n\t@mixin ck-media-phone {\n\t\tpadding: 0;\n\t\twidth: calc(.8 * var(--ck-input-width));\n\n\t\t& .ck-labeled-field-view {\n\t\t\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) 0;\n\n\t\t\t& .ck-input-text {\n\t\t\t\tmin-width: 0;\n\t\t\t\twidth: 100%;\n\t\t\t}\n\n\t\t\t/* Let the long error messages wrap in the narrow form. */\n\t\t\t& .ck-labeled-field-view__error {\n\t\t\t\twhite-space: normal;\n\t\t\t}\n\t\t}\n\n\t\t/* Styles for two last buttons in the form (save&cancel, edit&unlink, etc.). */\n\t\t& > .ck-button:nth-last-child(2) {\n\t\t\t&::after {\n\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t}\n\t\t}\n\n\t\t& > .ck-button:nth-last-child(1),\n\t\t& > .ck-button:nth-last-child(2) {\n\t\t\tpadding: var(--ck-spacing-standard);\n\t\t\tmargin-top: var(--ck-spacing-large);\n\t\t\tborder-radius: 0;\n\n\t\t\t&:not(:focus) {\n\t\t\t\tborder-top: 1px solid var(--ck-color-base-border);\n\t\t\t}\n\n\t\t\t@mixin ck-dir ltr {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\n\t\t\t@mixin ck-dir rtl {\n\t\t\t\tmargin-left: 0;\n\n\t\t\t\t&:last-of-type {\n\t\t\t\t\tborder-right: 1px solid var(--ck-color-base-border);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n'],sourceRoot:""}]);const a=s},9695:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-block-toolbar-button{position:absolute;z-index:var(--ck-z-default)}:root{--ck-color-block-toolbar-button:var(--ck-color-text);--ck-block-toolbar-button-size:var(--ck-font-size-normal)}.ck.ck-block-toolbar-button{color:var(--ck-color-block-toolbar-button);font-size:var(--ck-block-toolbar-size)}","",{version:3,sources:["webpack://./../ckeditor5-ui/theme/components/toolbar/blocktoolbar.css","webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/toolbar/blocktoolbar.css"],names:[],mappings:"AAKA,4BACC,iBAAkB,CAClB,2BACD,CCHA,MACC,oDAAqD,CACrD,yDACD,CAEA,4BACC,0CAA2C,CAC3C,sCACD",sourcesContent:["/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck.ck-block-toolbar-button {\n\tposition: absolute;\n\tz-index: var(--ck-z-default);\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-color-block-toolbar-button: var(--ck-color-text);\n\t--ck-block-toolbar-button-size: var(--ck-font-size-normal);\n}\n\n.ck.ck-block-toolbar-button {\n\tcolor: var(--ck-color-block-toolbar-button);\n\tfont-size: var(--ck-block-toolbar-size);\n}\n"],sourceRoot:""}]);const a=s},5542:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,".ck.ck-toolbar{align-items:center;display:flex;flex-flow:row nowrap;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-toolbar>.ck-toolbar__items{align-items:center;display:flex;flex-flow:row wrap;flex-grow:1}.ck.ck-toolbar .ck.ck-toolbar__separator{display:inline-block}.ck.ck-toolbar .ck.ck-toolbar__separator:first-child,.ck.ck-toolbar .ck.ck-toolbar__separator:last-child{display:none}.ck.ck-toolbar 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* Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../mixins/_unselectable.css";\n\n.ck.ck-toolbar {\n\t@mixin ck-unselectable;\n\n\tdisplay: flex;\n\tflex-flow: row nowrap;\n\talign-items: center;\n\n\t& > .ck-toolbar__items {\n\t\tdisplay: flex;\n\t\tflex-flow: row wrap;\n\t\talign-items: center;\n\t\tflex-grow: 1;\n\n\t}\n\n\t& .ck.ck-toolbar__separator {\n\t\tdisplay: inline-block;\n\n\t\t/*\n\t\t * A leading or trailing separator makes no sense (separates from nothing on one side).\n\t\t * For instance, it can happen when toolbar items (also separators) are getting grouped one by one and\n\t\t * moved to another toolbar in the dropdown.\n\t\t */\n\t\t&:first-child,\n\t\t&:last-child {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n\n\t& .ck-toolbar__line-break {\n\t\tflex-basis: 100%;\n\t}\n\n\t&.ck-toolbar_grouping > .ck-toolbar__items {\n\t\tflex-wrap: nowrap;\n\t}\n\n\t&.ck-toolbar_vertical > .ck-toolbar__items {\n\t\tflex-direction: column;\n\t}\n\n\t&.ck-toolbar_floating > .ck-toolbar__items {\n\t\tflex-wrap: nowrap;\n\t}\n\n\t& > .ck.ck-toolbar__grouped-dropdown {\n\t\t& > .ck-dropdown__button .ck-dropdown__arrow {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Makes element unselectable.\n */\n@define-mixin ck-unselectable {\n\t-moz-user-select: none;\n\t-webkit-user-select: none;\n\t-ms-user-select: none;\n\tuser-select: none\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../../../mixins/_rounded.css";\n@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";\n\n.ck.ck-toolbar {\n\t@mixin ck-rounded-corners;\n\n\tbackground: var(--ck-color-toolbar-background);\n\tpadding: 0 var(--ck-spacing-small);\n\tborder: 1px solid var(--ck-color-toolbar-border);\n\n\t& .ck.ck-toolbar__separator {\n\t\talign-self: stretch;\n\t\twidth: 1px;\n\t\tmin-width: 1px;\n\t\tbackground: var(--ck-color-toolbar-border);\n\n\t\t/*\n\t\t * These margins make the separators look better in balloon toolbars (when aligned with the "tip").\n\t\t * See https://github.com/ckeditor/ckeditor5/issues/7493.\n\t\t */\n\t\tmargin-top: var(--ck-spacing-small);\n\t\tmargin-bottom: var(--ck-spacing-small);\n\t}\n\n\t& .ck-toolbar__line-break {\n\t\theight: 0;\n\t}\n\n\t& > .ck-toolbar__items {\n\t\t& > *:not(.ck-toolbar__line-break) {\n\t\t\t/* (#11) Separate toolbar items. */\n\t\t\tmargin-right: var(--ck-spacing-small);\n\t\t}\n\n\t\t/* Don\'t display a separator after an empty items container, for instance,\n\t\twhen all items were grouped */\n\t\t&:empty + .ck.ck-toolbar__separator {\n\t\t\tdisplay: none;\n\t\t}\n\t}\n\n\t& > .ck-toolbar__items > *:not(.ck-toolbar__line-break),\n\t& > .ck.ck-toolbar__grouped-dropdown {\n\t\t/* Make sure items wrapped to the next line have v-spacing */\n\t\tmargin-top: var(--ck-spacing-small);\n\t\tmargin-bottom: var(--ck-spacing-small);\n\t}\n\n\t&.ck-toolbar_vertical {\n\t\t/* Items in a vertical toolbar span the entire width. */\n\t\tpadding: 0;\n\n\t\t/* Specificity matters here. See https://github.com/ckeditor/ckeditor5-theme-lark/issues/168. */\n\t\t& > .ck-toolbar__items > .ck {\n\t\t\t/* Items in a vertical toolbar should span the horizontal space. */\n\t\t\twidth: 100%;\n\n\t\t\t/* Items in a vertical toolbar should have no margin. */\n\t\t\tmargin: 0;\n\n\t\t\t/* Items in a vertical toolbar span the entire width so rounded corners are pointless. */\n\t\t\tborder-radius: 0;\n\t\t}\n\t}\n\n\t&.ck-toolbar_compact {\n\t\t/* No spacing around items. */\n\t\tpadding: 0;\n\n\t\t& > .ck-toolbar__items > * {\n\t\t\t/* Compact toolbar items have no spacing between them. */\n\t\t\tmargin: 0;\n\n\t\t\t/* "Middle" children should have no rounded corners. */\n\t\t\t&:not(:first-child):not(:last-child) {\n\t\t\t\tborder-radius: 0;\n\t\t\t}\n\t\t}\n\t}\n\n\t& > .ck.ck-toolbar__grouped-dropdown {\n\t\t/*\n\t\t * Dropdown button has asymmetric padding to fit the arrow.\n\t\t * This button has no arrow so let\'s revert that padding back to normal.\n\t\t */\n\t\t& > .ck.ck-button.ck-dropdown__button {\n\t\t\tpadding-left: var(--ck-spacing-tiny);\n\t\t}\n\t}\n\n\t/* A drop-down containing the nested toolbar with configured items. */\n\t& .ck-toolbar__nested-toolbar-dropdown {\n\t\t/* Prevent empty space in the panel when the dropdown label is visible and long but the toolbar has few items. */\n\t\t& > .ck-dropdown__panel {\n\t\t\tmin-width: auto;\n\t\t}\n\n\t\t& > .ck-button > .ck-button__label {\n\t\t\tmax-width: 7em;\n\t\t\twidth: auto;\n\t\t}\n\t}\n\n\t@nest .ck-toolbar-container & {\n\t\tborder: 0;\n\t}\n}\n\n/* stylelint-disable */\n\n/*\n * Styles for RTL toolbars.\n *\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own "dir"\n * because its parent is not controlled by the editor framework.\n */\n[dir="rtl"] .ck.ck-toolbar,\n.ck.ck-toolbar[dir="rtl"] {\n\t& > .ck-toolbar__items > .ck {\n\t\tmargin-right: 0;\n\t}\n\n\t&:not(.ck-toolbar_compact) > .ck-toolbar__items > .ck {\n\t\t/* (#11) Separate toolbar items. */\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n\n\t& > .ck-toolbar__items > .ck:last-child {\n\t\tmargin-left: 0;\n\t}\n\n\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\n\t\t/* No rounded corners on the right side of the first child. */\n\t\t&:first-child {\n\t\t\tborder-top-left-radius: 0;\n\t\t\tborder-bottom-left-radius: 0;\n\t\t}\n\n\t\t/* No rounded corners on the left side of the last child. */\n\t\t&:last-child {\n\t\t\tborder-top-right-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\t}\n\n\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\n\t& > .ck.ck-toolbar__separator {\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n\n\t/* Some spacing between the items and the separator before the grouped items dropdown. */\n\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\n\t\tmargin-left: var(--ck-spacing-small);\n\t}\n}\n\n/*\n * Styles for LTR toolbars.\n *\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own "dir"\n * because its parent is not controlled by the editor framework.\n */\n[dir="ltr"] .ck.ck-toolbar,\n.ck.ck-toolbar[dir="ltr"] {\n\t& > .ck-toolbar__items > .ck:last-child {\n\t\tmargin-right: 0;\n\t}\n\n\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\n\t\t/* No rounded corners on the right side of the first child. */\n\t\t&:first-child {\n\t\t\tborder-top-right-radius: 0;\n\t\t\tborder-bottom-right-radius: 0;\n\t\t}\n\n\t\t/* No rounded corners on the left side of the last child. */\n\t\t&:last-child {\n\t\t\tborder-top-left-radius: 0;\n\t\t\tborder-bottom-left-radius: 0;\n\t\t}\n\t}\n\n\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\n\t& > .ck.ck-toolbar__separator {\n\t\tmargin-right: var(--ck-spacing-small);\n\t}\n\n\t/* Some spacing between the items and the separator before the grouped items dropdown. */\n\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\n\t\tmargin-right: var(--ck-spacing-small);\n\t}\n}\n\n/* stylelint-enable */\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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\t\t\t\t\t\t\t\t\thsl(var(--ck-color-focus-border-coordinates));\n\t--ck-color-focus-outer-shadow:\t\t\t\t\t\t\t\thsl(212.4, 89.3%, 89%);\n\t--ck-color-focus-disabled-shadow:\t\t\t\t\t\t\thsla(209, 90%, 72%,.3);\n\t--ck-color-focus-error-shadow:\t\t\t\t\t\t\t\thsla(9,100%,56%,.3);\n\t--ck-color-text: \t\t\t\t\t\t\t\t\t\t\tvar(--ck-color-base-text);\n\t--ck-color-shadow-drop: \t\t\t\t\t\t\t\t\thsla(0, 0%, 0%, 0.15);\n\t--ck-color-shadow-drop-active:\t\t\t\t\t\t\t\thsla(0, 0%, 0%, 0.2);\n\t--ck-color-shadow-inner: \t\t\t\t\t\t\t\t\thsla(0, 0%, 0%, 0.1);\n\n\t/* -- Buttons ------------------------------------------------------------------------------- */\n\n\t--ck-color-button-default-background: \t\t\t\t\t\ttransparent;\n\t--ck-color-button-default-hover-background: \t\t\t\thsl(0, 0%, 94.1%);\n\t--ck-color-button-default-active-background: \t\t\t\thsl(0, 0%, 94.1%);\n\t--ck-color-button-default-disabled-background: \t\t\t\ttransparent;\n\n\t--ck-color-button-on-background: \t\t\t\t\t\t\thsl(212, 100%, 97.1%);\n\t--ck-color-button-on-hover-background: \t\t\t\t\t\thsl(211.7, 100%, 92.9%);\n\t--ck-color-button-on-active-background: \t\t\t\t\thsl(211.7, 100%, 92.9%);\n\t--ck-color-button-on-disabled-background: \t\t\t\t\thsl(211, 15%, 95%);\n\t--ck-color-button-on-color:\t\t\t\t\t\t\t\t\thsl(218.1, 100%, 58%);\n\n\n\t--ck-color-button-action-background: \t\t\t\t\t\tvar(--ck-color-base-action);\n\t--ck-color-button-action-hover-background: \t\t\t\t\thsl(104, 53.2%, 40.2%);\n\t--ck-color-button-action-active-background: \t\t\t\thsl(104, 53.2%, 40.2%);\n\t--ck-color-button-action-disabled-background: \t\t\t\thsl(104, 44%, 58%);\n\t--ck-color-button-action-text: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\n\t--ck-color-button-save: \t\t\t\t\t\t\t\t\thsl(120, 100%, 27%);\n\t--ck-color-button-cancel: \t\t\t\t\t\t\t\t\thsl(15, 100%, 43%);\n\n\t--ck-color-switch-button-off-background:\t\t\t\t\thsl(0, 0%, 57.6%);\n\t--ck-color-switch-button-off-hover-background:\t\t\t\thsl(0, 0%, 49%);\n\t--ck-color-switch-button-on-background:\t\t\t\t\t\tvar(--ck-color-button-action-background);\n\t--ck-color-switch-button-on-hover-background:\t\t\t\thsl(104, 53.2%, 40.2%);\n\t--ck-color-switch-button-inner-background:\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-switch-button-inner-shadow:\t\t\t\t\t\thsla(0, 0%, 0%, 0.1);\n\n\t/* -- Dropdown ------------------------------------------------------------------------------ */\n\n\t--ck-color-dropdown-panel-background: \t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-dropdown-panel-border: \t\t\t\t\t\t\tvar(--ck-color-base-border);\n\n\t/* -- Input --------------------------------------------------------------------------------- */\n\n\t--ck-color-input-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-input-border: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-border);\n\t--ck-color-input-error-border:\t\t\t\t\t\t\t\tvar(--ck-color-base-error);\n\t--ck-color-input-text: \t\t\t\t\t\t\t\t\t\tvar(--ck-color-base-text);\n\t--ck-color-input-disabled-background: \t\t\t\t\t\thsl(0, 0%, 95%);\n\t--ck-color-input-disabled-border: \t\t\t\t\t\t\tvar(--ck-color-base-border);\n\t--ck-color-input-disabled-text: \t\t\t\t\t\t\thsl(0, 0%, 46%);\n\n\t/* -- List ---------------------------------------------------------------------------------- */\n\n\t--ck-color-list-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-list-button-hover-background: \t\t\t\t\tvar(--ck-color-button-default-hover-background);\n\t--ck-color-list-button-on-background: \t\t\t\t\t\tvar(--ck-color-button-on-color);\n\t--ck-color-list-button-on-background-focus: \t\t\t\tvar(--ck-color-button-on-color);\n\t--ck-color-list-button-on-text:\t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\n\t/* -- Panel --------------------------------------------------------------------------------- */\n\n\t--ck-color-panel-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-panel-border: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-border);\n\n\t/* -- Toolbar ------------------------------------------------------------------------------- */\n\n\t--ck-color-toolbar-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\t--ck-color-toolbar-border: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-border);\n\n\t/* -- Tooltip ------------------------------------------------------------------------------- */\n\n\t--ck-color-tooltip-background: \t\t\t\t\t\t\t\tvar(--ck-color-base-text);\n\t--ck-color-tooltip-text: \t\t\t\t\t\t\t\t\tvar(--ck-color-base-background);\n\n\t/* -- Engine -------------------------------------------------------------------------------- */\n\n\t--ck-color-engine-placeholder-text: \t\t\t\t\t\thsl(0, 0%, 44%);\n\n\t/* -- Upload -------------------------------------------------------------------------------- */\n\n\t--ck-color-upload-bar-background:\t\t \t\t\t\t\thsl(209, 92%, 70%);\n\n\t/* -- Link -------------------------------------------------------------------------------- */\n\n\t--ck-color-link-default:\t\t\t\t\t\t\t\t\thsl(240, 100%, 47%);\n\t--ck-color-link-selected-background:\t\t\t\t\t\thsla(201, 100%, 56%, 0.1);\n\t--ck-color-link-fake-selection:\t\t\t\t\t\t\t\thsla(201, 100%, 56%, 0.3);\n\n\t/* -- Search result highlight ---------------------------------------------------------------- */\n\n\t--ck-color-highlight-background:\t\t\t\t\t\t\thsl(60, 100%, 50%)\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t/**\n\t * An opacity value of disabled UI item.\n\t */\n\t--ck-disabled-opacity: .5;\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t/**\n\t * The geometry of the of focused element's outer shadow.\n\t */\n\t--ck-focus-outer-shadow-geometry: 0 0 0 3px;\n\n\t/**\n\t * A visual style of focused element's outer shadow.\n\t */\n\t--ck-focus-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-outer-shadow);\n\n\t/**\n\t * A visual style of focused element's outer shadow (when disabled).\n\t */\n\t--ck-focus-disabled-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-disabled-shadow);\n\n\t/**\n\t * A visual style of focused element's outer shadow (when has errors).\n\t */\n\t--ck-focus-error-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-error-shadow);\n\n\t/**\n\t * A visual style of focused element's border or outline.\n\t */\n\t--ck-focus-ring: 1px solid var(--ck-color-focus-border);\n}\n","/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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The value is also shared by other components which should stay "in-line"\n\twith buttons. */\n\t--ck-ui-component-min-height: 2.3em;\n}\n\n/**\n * Resets an element, ignoring its children.\n */\n.ck.ck-reset,\n.ck.ck-reset_all,\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\n\t/* Do not include inheritable rules here. */\n\tmargin: 0;\n\tpadding: 0;\n\tborder: 0;\n\tbackground: transparent;\n\ttext-decoration: none;\n\tvertical-align: middle;\n\ttransition: none;\n\n\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/105 */\n\tword-wrap: break-word;\n}\n\n/**\n * Resets an element AND its children.\n */\n.ck.ck-reset_all,\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\n\t/* These are rule inherited by all children elements. */\n\tborder-collapse: collapse;\n\tfont: normal normal normal var(--ck-font-size-base)/var(--ck-line-height-base) var(--ck-font-face);\n\tcolor: var(--ck-color-text);\n\ttext-align: left;\n\twhite-space: nowrap;\n\tcursor: auto;\n\tfloat: none;\n}\n\n.ck-reset_all {\n\t& .ck-rtl *:not(.ck-reset_all-excluded *) {\n\t\ttext-align: right;\n\t}\n\n\t& iframe:not(.ck-reset_all-excluded *) {\n\t\t/* For IE */\n\t\tvertical-align: inherit;\n\t}\n\n\t& textarea:not(.ck-reset_all-excluded *) {\n\t\twhite-space: pre-wrap;\n\t}\n\n\t& textarea:not(.ck-reset_all-excluded *),\n\t& input[type="text"]:not(.ck-reset_all-excluded *),\n\t& input[type="password"]:not(.ck-reset_all-excluded *) {\n\t\tcursor: text;\n\t}\n\n\t& textarea[disabled]:not(.ck-reset_all-excluded *),\n\t& input[type="text"][disabled]:not(.ck-reset_all-excluded *),\n\t& input[type="password"][disabled]:not(.ck-reset_all-excluded *) {\n\t\tcursor: default;\n\t}\n\n\t& fieldset:not(.ck-reset_all-excluded *) {\n\t\tpadding: 10px;\n\t\tborder: 2px groove hsl(255, 7%, 88%);\n\t}\n\n\t& button:not(.ck-reset_all-excluded *)::-moz-focus-inner {\n\t\t/* See http://stackoverflow.com/questions/5517744/remove-extra-button-spacing-padding-in-firefox */\n\t\tpadding: 0;\n\t\tborder: 0\n\t}\n}\n\n/**\n * Default UI rules for RTL languages.\n */\n.ck[dir="rtl"],\n.ck[dir="rtl"] .ck {\n\ttext-align: right;\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-spacing-unit: \t\t\t\t\t\t0.6em;\n\t--ck-spacing-large: \t\t\t\t\tcalc(var(--ck-spacing-unit) * 1.5);\n\t--ck-spacing-standard: \t\t\t\t\tvar(--ck-spacing-unit);\n\t--ck-spacing-medium: \t\t\t\t\tcalc(var(--ck-spacing-unit) * 0.8);\n\t--ck-spacing-small: \t\t\t\t\tcalc(var(--ck-spacing-unit) * 0.5);\n\t--ck-spacing-tiny: \t\t\t\t\t\tcalc(var(--ck-spacing-unit) * 0.3);\n\t--ck-spacing-extra-tiny: \t\t\t\tcalc(var(--ck-spacing-unit) * 0.16);\n}\n"],sourceRoot:""}]);const a=s},3488:(t,e,n)=>{n.d(e,{Z:()=>a});var o=n(1799),i=n.n(o),r=n(2609),s=n.n(r)()(i());s.push([t.id,":root{--ck-color-resizer:var(--ck-color-focus-border);--ck-color-resizer-tooltip-background:#262626;--ck-color-resizer-tooltip-text:#f2f2f2;--ck-resizer-border-radius:var(--ck-border-radius);--ck-resizer-tooltip-offset:10px;--ck-resizer-tooltip-height:calc(var(--ck-spacing-small)*2 + 10px)}.ck .ck-widget,.ck .ck-widget.ck-widget_with-selection-handle{position:relative}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{position:absolute}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon{display:block}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle,.ck .ck-widget.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle{visibility:visible}.ck .ck-size-view{background:var(--ck-color-resizer-tooltip-background);border:1px solid var(--ck-color-resizer-tooltip-text);border-radius:var(--ck-resizer-border-radius);color:var(--ck-color-resizer-tooltip-text);display:block;font-size:var(--ck-font-size-tiny);height:var(--ck-resizer-tooltip-height);line-height:var(--ck-resizer-tooltip-height);padding:0 var(--ck-spacing-small)}.ck .ck-size-view.ck-orientation-above-center,.ck .ck-size-view.ck-orientation-bottom-left,.ck .ck-size-view.ck-orientation-bottom-right,.ck .ck-size-view.ck-orientation-top-left,.ck .ck-size-view.ck-orientation-top-right{position:absolute}.ck .ck-size-view.ck-orientation-top-left{left:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-top-right{right:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-right{bottom:var(--ck-resizer-tooltip-offset);right:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-left{bottom:var(--ck-resizer-tooltip-offset);left:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-above-center{left:50%;top:calc(var(--ck-resizer-tooltip-height)*-1);transform:translate(-50%)}:root{--ck-widget-outline-thickness:3px;--ck-widget-handler-icon-size:16px;--ck-widget-handler-animation-duration:200ms;--ck-widget-handler-animation-curve:ease;--ck-color-widget-blurred-border:#dedede;--ck-color-widget-hover-border:#ffc83d;--ck-color-widget-editable-focus-background:var(--ck-color-base-background);--ck-color-widget-drag-handler-icon-color:var(--ck-color-base-background)}.ck .ck-widget{outline-color:transparent;outline-style:solid;outline-width:var(--ck-widget-outline-thickness);transition:outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_selected,.ck .ck-widget.ck-widget_selected:hover{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border)}.ck .ck-widget:hover{outline-color:var(--ck-color-widget-hover-border)}.ck .ck-editor__nested-editable{border:1px solid transparent}.ck .ck-editor__nested-editable.ck-editor__nested-editable_focused,.ck .ck-editor__nested-editable:focus{background-color:var(--ck-color-widget-editable-focus-background);border:var(--ck-focus-ring);box-shadow:var(--ck-inner-shadow),0 0;outline:none}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{background-color:transparent;border-radius:var(--ck-border-radius) var(--ck-border-radius) 0 0;box-sizing:border-box;left:calc(0px - 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-color-resizer: var(--ck-color-focus-border);\n\t--ck-color-resizer-tooltip-background: hsl(0, 0%, 15%);\n\t--ck-color-resizer-tooltip-text: hsl(0, 0%, 95%);\n\n\t--ck-resizer-border-radius: var(--ck-border-radius);\n\t--ck-resizer-tooltip-offset: 10px;\n\t--ck-resizer-tooltip-height: calc(var(--ck-spacing-small) * 2 + 10px);\n}\n\n.ck .ck-widget {\n\t/* This is neccessary for type around UI to be positioned properly. */\n\tposition: relative;\n}\n\n.ck .ck-widget.ck-widget_with-selection-handle {\n\t/* Make the widget wrapper a relative positioning container for the drag handle. */\n\tposition: relative;\n\n\t& .ck-widget__selection-handle {\n\t\tposition: absolute;\n\n\t\t& .ck-icon {\n\t\t\t/* Make sure the icon in not a subject to font-size or line-height to avoid\n\t\t\tunnecessary spacing around it. */\n\t\t\tdisplay: block;\n\t\t}\n\t}\n\n\t/* Show the selection handle on mouse hover over the widget, but not for nested widgets. */\n\t&:hover > .ck-widget__selection-handle {\n\t\tvisibility: visible;\n\t}\n\n\t/* Show the selection handle when the widget is selected, but not for nested widgets. */\n\t&.ck-widget_selected > .ck-widget__selection-handle {\n\t\tvisibility: visible;\n\t}\n}\n\n.ck .ck-size-view {\n\tbackground: var(--ck-color-resizer-tooltip-background);\n\tcolor: var(--ck-color-resizer-tooltip-text);\n\tborder: 1px solid var(--ck-color-resizer-tooltip-text);\n\tborder-radius: var(--ck-resizer-border-radius);\n\tfont-size: var(--ck-font-size-tiny);\n\tdisplay: block;\n\tpadding: 0 var(--ck-spacing-small);\n\theight: var(--ck-resizer-tooltip-height);\n\tline-height: var(--ck-resizer-tooltip-height);\n\n\t&.ck-orientation-top-left,\n\t&.ck-orientation-top-right,\n\t&.ck-orientation-bottom-right,\n\t&.ck-orientation-bottom-left,\n\t&.ck-orientation-above-center {\n\t\tposition: absolute;\n\t}\n\n\t&.ck-orientation-top-left {\n\t\ttop: var(--ck-resizer-tooltip-offset);\n\t\tleft: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t&.ck-orientation-top-right {\n\t\ttop: var(--ck-resizer-tooltip-offset);\n\t\tright: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t&.ck-orientation-bottom-right {\n\t\tbottom: var(--ck-resizer-tooltip-offset);\n\t\tright: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t&.ck-orientation-bottom-left {\n\t\tbottom: var(--ck-resizer-tooltip-offset);\n\t\tleft: var(--ck-resizer-tooltip-offset);\n\t}\n\n\t/* Class applied if the widget is too small to contain the size label */\n\t&.ck-orientation-above-center {\n\t\ttop: calc(var(--ck-resizer-tooltip-height) * -1);\n\t\tleft: 50%;\n\t\ttransform: translate(-50%);\n\t}\n}\n",'/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n@import "../mixins/_focus.css";\n@import "../mixins/_shadow.css";\n\n:root {\n\t--ck-widget-outline-thickness: 3px;\n\t--ck-widget-handler-icon-size: 16px;\n\t--ck-widget-handler-animation-duration: 200ms;\n\t--ck-widget-handler-animation-curve: ease;\n\n\t--ck-color-widget-blurred-border: hsl(0, 0%, 87%);\n\t--ck-color-widget-hover-border: hsl(43, 100%, 62%);\n\t--ck-color-widget-editable-focus-background: var(--ck-color-base-background);\n\t--ck-color-widget-drag-handler-icon-color: var(--ck-color-base-background);\n}\n\n.ck .ck-widget {\n\toutline-width: var(--ck-widget-outline-thickness);\n\toutline-style: solid;\n\toutline-color: transparent;\n\ttransition: outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\n\n\t&.ck-widget_selected,\n\t&.ck-widget_selected:hover {\n\t\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border);\n\t}\n\n\t&:hover {\n\t\toutline-color: var(--ck-color-widget-hover-border);\n\t}\n}\n\n.ck .ck-editor__nested-editable {\n\tborder: 1px solid transparent;\n\n\t/* The :focus style is applied before .ck-editor__nested-editable_focused class is rendered in the view.\n\tThese styles show a different border for a blink of an eye, so `:focus` need to have same styles applied. */\n\t&.ck-editor__nested-editable_focused,\n\t&:focus {\n\t\t@mixin ck-focus-ring;\n\t\t@mixin ck-box-shadow var(--ck-inner-shadow);\n\n\t\tbackground-color: var(--ck-color-widget-editable-focus-background);\n\t}\n}\n\n.ck .ck-widget.ck-widget_with-selection-handle {\n\t& .ck-widget__selection-handle {\n\t\tpadding: 4px;\n\t\tbox-sizing: border-box;\n\n\t\t/* Background and opacity will be animated as the handler shows up or the widget gets selected. */\n\t\tbackground-color: transparent;\n\t\topacity: 0;\n\n\t\t/* Transition:\n\t\t   * background-color for the .ck-widget_selected state change,\n\t\t   * visibility for hiding the handler,\n\t\t   * opacity for the proper look of the icon when the handler disappears. */\n\t\ttransition:\n\t\t\tbackground-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\n\t\t\tvisibility var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\n\t\t\topacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\n\n\t\t/* Make only top corners round. */\n\t\tborder-radius: var(--ck-border-radius) var(--ck-border-radius) 0 0;\n\n\t\t/* Place the drag handler outside the widget wrapper. */\n\t\ttransform: translateY(-100%);\n\t\tleft: calc(0px - var(--ck-widget-outline-thickness));\n\t\ttop: 0;\n\n\t\t& .ck-icon {\n\t\t\t/* Make sure the dimensions of the icon are independent of the fon-size of the content. */\n\t\t\twidth: var(--ck-widget-handler-icon-size);\n\t\t\theight: var(--ck-widget-handler-icon-size);\n\t\t\tcolor: var(--ck-color-widget-drag-handler-icon-color);\n\n\t\t\t/* The "selected" part of the icon is invisible by default */\n\t\t\t& .ck-icon__selected-indicator {\n\t\t\t\topacity: 0;\n\n\t\t\t\t/* Note: The animation is longer on purpose. Simply feels better. */\n\t\t\t\ttransition: opacity 300ms var(--ck-widget-handler-animation-curve);\n\t\t\t}\n\t\t}\n\n\t\t/* Advertise using the look of the icon that once clicked the handler, the widget will be selected. */\n\t\t&:hover .ck-icon .ck-icon__selected-indicator {\n\t\t\topacity: 1;\n\t\t}\n\t}\n\n\t/* Show the selection handler on mouse hover over the widget, but not for nested widgets. */\n\t&:hover > .ck-widget__selection-handle {\n\t\topacity: 1;\n\t\tbackground-color: var(--ck-color-widget-hover-border);\n\t}\n\n\t/* Show the selection handler when the widget is selected, but not for nested widgets. */\n\t&.ck-widget_selected,\n\t&.ck-widget_selected:hover {\n\t\t& > .ck-widget__selection-handle {\n\t\t\topacity: 1;\n\t\t\tbackground-color: var(--ck-color-focus-border);\n\n\t\t\t/* When the widget is selected, notify the user using the proper look of the icon. */\n\t\t\t& .ck-icon .ck-icon__selected-indicator {\n\t\t\t\topacity: 1;\n\t\t\t}\n\t\t}\n\t}\n}\n\n/* In a RTL environment, align the selection handler to the right side of the widget */\n/* stylelint-disable-next-line no-descending-specificity */\n.ck[dir="rtl"] .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle {\n\tleft: auto;\n\tright: calc(0px - var(--ck-widget-outline-thickness));\n}\n\n/* https://github.com/ckeditor/ckeditor5/issues/6415 */\n.ck.ck-editor__editable.ck-read-only .ck-widget {\n\t/* Prevent the :hover outline from showing up because of the used outline-color transition. */\n\ttransition: none;\n\n\t&:not(.ck-widget_selected) {\n\t\t/* Disable visual effects of hover/active widget when CKEditor is in readOnly mode.\n\t\t * See: https://github.com/ckeditor/ckeditor5/issues/1261\n\t\t *\n\t\t * Leave the unit because this custom property is used in calc() by other features.\n\t\t * See: https://github.com/ckeditor/ckeditor5/issues/6775\n\t\t */\n\t\t--ck-widget-outline-thickness: 0px;\n\t}\n\n\t&.ck-widget_with-selection-handle {\n\t\t& .ck-widget__selection-handle,\n\t\t& .ck-widget__selection-handle:hover {\n\t\t\tbackground: var(--ck-color-widget-blurred-border);\n\t\t}\n\t}\n}\n\n/* Style the widget when it\'s selected but the editable it belongs to lost focus. */\n/* stylelint-disable-next-line no-descending-specificity */\n.ck.ck-editor__editable.ck-blurred .ck-widget {\n\t&.ck-widget_selected,\n\t&.ck-widget_selected:hover {\n\t\toutline-color: var(--ck-color-widget-blurred-border);\n\n\t\t&.ck-widget_with-selection-handle {\n\t\t\t& > .ck-widget__selection-handle,\n\t\t\t& > .ck-widget__selection-handle:hover {\n\t\t\t\tbackground: var(--ck-color-widget-blurred-border);\n\t\t\t}\n\t\t}\n\t}\n}\n\n.ck.ck-editor__editable > .ck-widget.ck-widget_with-selection-handle:first-child,\n.ck.ck-editor__editable blockquote > .ck-widget.ck-widget_with-selection-handle:first-child {\n\t/* Do not crop selection handler if a widget is a first-child in the blockquote or in the root editable.\n\tIn fact, anything with overflow: hidden.\n\thttps://github.com/ckeditor/ckeditor5-block-quote/issues/28\n\thttps://github.com/ckeditor/ckeditor5-widget/issues/44\n\thttps://github.com/ckeditor/ckeditor5-widget/issues/66 */\n\tmargin-top: calc(1em + var(--ck-widget-handler-icon-size));\n}\n',"/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. 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* Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n.ck .ck-widget {\n\t/*\n\t * Styles of the type around buttons\n\t */\n\t& .ck-widget__type-around__button {\n\t\tdisplay: block;\n\t\tposition: absolute;\n\t\toverflow: hidden;\n\t\tz-index: var(--ck-z-default);\n\n\t\t& svg {\n\t\t\tposition: absolute;\n\t\t\ttop: 50%;\n\t\t\tleft: 50%;\n\t\t\tz-index: calc(var(--ck-z-default) + 2);\n\t\t}\n\n\t\t&.ck-widget__type-around__button_before {\n\t\t\t/* Place it in the middle of the outline */\n\t\t\ttop: calc(-0.5 * var(--ck-widget-outline-thickness));\n\t\t\tleft: min(10%, 30px);\n\n\t\t\ttransform: translateY(-50%);\n\t\t}\n\n\t\t&.ck-widget__type-around__button_after {\n\t\t\t/* Place it in the middle of the outline */\n\t\t\tbottom: calc(-0.5 * var(--ck-widget-outline-thickness));\n\t\t\tright: min(10%, 30px);\n\n\t\t\ttransform: translateY(50%);\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the buttons when:\n\t * - the widget is selected,\n\t * - or the button is being hovered (regardless of the widget state).\n\t */\n\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\n\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\n\t\t&::after {\n\t\t\tcontent: "";\n\t\t\tdisplay: block;\n\t\t\tposition: absolute;\n\t\t\ttop: 1px;\n\t\t\tleft: 1px;\n\t\t\tz-index: calc(var(--ck-z-default) + 1);\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" which is displayed when the user navigates using the keyboard.\n\t */\n\t& > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\tdisplay: none;\n\t\tposition: absolute;\n\t\tleft: 0;\n\t\tright: 0;\n\t}\n\n\t/*\n\t * When the widget is hovered the "fake caret" would normally be narrower than the\n\t * extra outline displayed around the widget. Let\'s extend the "fake caret" to match\n\t * the full width of the widget.\n\t */\n\t&:hover > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\tleft: calc( -1 * var(--ck-widget-outline-thickness) );\n\t\tright: calc( -1 * var(--ck-widget-outline-thickness) );\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" when it should be displayed before the widget (backward keyboard navigation).\n\t */\n\t&.ck-widget_type-around_show-fake-caret_before > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\ttop: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\n\t\tdisplay: block;\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" when it should be displayed after the widget (forward keyboard navigation).\n\t */\n\t&.ck-widget_type-around_show-fake-caret_after > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\n\t\tbottom: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\n\t\tdisplay: block;\n\t}\n}\n\n/*\n * Integration with the read-only mode of the editor.\n */\n.ck.ck-editor__editable.ck-read-only .ck-widget__type-around {\n\tdisplay: none;\n}\n\n/*\n * Integration with the restricted editing mode (feature) of the editor.\n */\n.ck.ck-editor__editable.ck-restricted-editing_mode_restricted .ck-widget__type-around {\n\tdisplay: none;\n}\n\n/*\n * Integration with the #isEnabled property of the WidgetTypeAround plugin.\n */\n.ck.ck-editor__editable.ck-widget__type-around_disabled .ck-widget__type-around {\n\tdisplay: none;\n}\n','/*\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n:root {\n\t--ck-widget-type-around-button-size: 20px;\n\t--ck-color-widget-type-around-button-active: var(--ck-color-focus-border);\n\t--ck-color-widget-type-around-button-hover: var(--ck-color-widget-hover-border);\n\t--ck-color-widget-type-around-button-blurred-editable: var(--ck-color-widget-blurred-border);\n\t--ck-color-widget-type-around-button-radar-start-alpha: 0;\n\t--ck-color-widget-type-around-button-radar-end-alpha: .3;\n\t--ck-color-widget-type-around-button-icon: var(--ck-color-base-background);\n}\n\n@define-mixin ck-widget-type-around-button-visible {\n\topacity: 1;\n\tpointer-events: auto;\n}\n\n@define-mixin ck-widget-type-around-button-hidden {\n\topacity: 0;\n\tpointer-events: none;\n}\n\n.ck .ck-widget {\n\t/*\n\t * Styles of the type around buttons\n\t */\n\t& .ck-widget__type-around__button {\n\t\twidth: var(--ck-widget-type-around-button-size);\n\t\theight: var(--ck-widget-type-around-button-size);\n\t\tbackground: var(--ck-color-widget-type-around-button);\n\t\tborder-radius: 100px;\n\t\ttransition: opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve), background var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\n\n\t\t@mixin ck-widget-type-around-button-hidden;\n\n\t\t& svg {\n\t\t\twidth: 10px;\n\t\t\theight: 8px;\n\t\t\ttransform: translate(-50%,-50%);\n\t\t\ttransition: transform .5s ease;\n\t\t\tmargin-top: 1px;\n\n\t\t\t& * {\n\t\t\t\tstroke-dasharray: 10;\n\t\t\t\tstroke-dashoffset: 0;\n\n\t\t\t\tfill: none;\n\t\t\t\tstroke: var(--ck-color-widget-type-around-button-icon);\n\t\t\t\tstroke-width: 1.5px;\n\t\t\t\tstroke-linecap: round;\n\t\t\t\tstroke-linejoin: round;\n\t\t\t}\n\n\t\t\t& line {\n\t\t\t\tstroke-dasharray: 7;\n\t\t\t}\n\t\t}\n\n\t\t&:hover {\n\t\t\t/*\n\t\t\t * Display the "sonar" around the button when hovered.\n\t\t\t */\n\t\t\tanimation: ck-widget-type-around-button-sonar 1s ease infinite;\n\n\t\t\t/*\n\t\t\t * Animate active button\'s icon.\n\t\t\t */\n\t\t\t& svg {\n\t\t\t\t& polyline {\n\t\t\t\t\tanimation: ck-widget-type-around-arrow-dash 2s linear;\n\t\t\t\t}\n\n\t\t\t\t& line {\n\t\t\t\t\tanimation: ck-widget-type-around-arrow-tip-dash 2s linear;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/*\n\t * Show type around buttons when the widget gets selected or being hovered.\n\t */\n\t&.ck-widget_selected,\n\t&:hover {\n\t\t& > .ck-widget__type-around > .ck-widget__type-around__button {\n\t\t\t@mixin ck-widget-type-around-button-visible;\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the buttons when the widget is NOT selected (but the buttons are visible\n\t * and still can be hovered).\n\t */\n\t&:not(.ck-widget_selected) > .ck-widget__type-around > .ck-widget__type-around__button {\n\t\tbackground: var(--ck-color-widget-type-around-button-hover);\n\t}\n\n\t/*\n\t * Styles for the buttons when:\n\t * - the widget is selected,\n\t * - or the button is being hovered (regardless of the widget state).\n\t */\n\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\n\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\n\t\tbackground: var(--ck-color-widget-type-around-button-active);\n\n\t\t&::after {\n\t\t\twidth: calc(var(--ck-widget-type-around-button-size) - 2px);\n\t\t\theight: calc(var(--ck-widget-type-around-button-size) - 2px);\n\t\t\tborder-radius: 100px;\n\t\t\tbackground: linear-gradient(135deg, hsla(0,0%,100%,0) 0%, hsla(0,0%,100%,.3) 100%);\n\t\t}\n\t}\n\n\t/*\n\t * Styles for the "before" button when the widget has a selection handle. Because some space\n\t * is consumed by the handle, the button must be moved slightly to the right to let it breathe.\n\t */\n\t&.ck-widget_with-selection-handle > .ck-widget__type-around > .ck-widget__type-around__button_before {\n\t\tmargin-left: 20px;\n\t}\n\n\t/*\n\t * Styles for the horizontal "fake caret" which is displayed when the user navigates using the keyboard.\n\t */\n\t& .ck-widget__type-around__fake-caret {\n\t\tpointer-events: none;\n\t\theight: 1px;\n\t\tanimation: ck-widget-type-around-fake-caret-pulse linear 1s infinite normal forwards;\n\n\t\t/*\n\t\t * The semi-transparent-outline+background combo improves the contrast\n\t\t * when the background underneath the fake caret is dark.\n\t\t */\n\t\toutline: solid 1px hsla(0, 0%, 100%, .5);\n\t\tbackground: var(--ck-color-base-text);\n\t}\n\n\t/*\n\t * Styles of the widget when the "fake caret" is blinking (e.g. upon keyboard navigation).\n\t * Despite the widget being physically selected in the model, its outline should disappear.\n\t */\n\t&.ck-widget_selected {\n\t\t&.ck-widget_type-around_show-fake-caret_before,\n\t\t&.ck-widget_type-around_show-fake-caret_after {\n\t\t\toutline-color: transparent;\n\t\t}\n\t}\n\n\t&.ck-widget_type-around_show-fake-caret_before,\n\t&.ck-widget_type-around_show-fake-caret_after {\n\t\t/*\n\t\t * When the "fake caret" is visible we simulate that the widget is not selected\n\t\t * (despite being physically selected), so the outline color should be for the\n\t\t * unselected widget.\n\t\t */\n\t\t&.ck-widget_selected:hover {\n\t\t\toutline-color: var(--ck-color-widget-hover-border);\n\t\t}\n\n\t\t/*\n\t\t * Styles of the type around buttons when the "fake caret" is blinking (e.g. upon keyboard navigation).\n\t\t * In this state, the type around buttons would collide with the fake carets so they should disappear.\n\t\t */\n\t\t& > .ck-widget__type-around > .ck-widget__type-around__button {\n\t\t\t@mixin ck-widget-type-around-button-hidden;\n\t\t}\n\n\t\t/*\n\t\t * Fake horizontal caret integration with the selection handle. When the caret is visible, simply\n\t\t * hide the handle because it intersects with the caret (and does not make much sense anyway).\n\t\t */\n\t\t&.ck-widget_with-selection-handle {\n\t\t\t&.ck-widget_selected,\n\t\t\t&.ck-widget_selected:hover {\n\t\t\t\t& > .ck-widget__selection-handle {\n\t\t\t\t\topacity: 0\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t/*\n\t\t * Fake horizontal caret integration with the resize UI. When the caret is visible, simply\n\t\t * hide the resize UI because it creates too much noise. 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this._insertChild(this.childCount,t)}_insertChild(t,e){this._fireChange("children",this);let n=0;const o=function(t,e){if("string"==typeof e)return[new tr(t,e)];Y(e)||(e=[e]);return Array.from(e).map((e=>"string"==typeof e?new tr(t,e):e instanceof er?new tr(t,e.data):e))}(this.document,e);for(const e of o)null!==e.parent&&e._remove(),e.parent=this,e.document=this.document,this._children.splice(t,0,e),t++,n++;return n}_removeChildren(t,e=1){this._fireChange("children",this);for(let n=t;n<t+e;n++)this._children[n].parent=null;return this._children.splice(t,e)}_setAttribute(t,e){const n=String(e);this._fireChange("attributes",this),"class"==t?ns(this._classes,n):"style"==t?this._styles.setTo(n):this._attrs.set(t,n)}_removeAttribute(t){return this._fireChange("attributes",this),"class"==t?this._classes.size>0&&(this._classes.clear(),!0):"style"==t?!this._styles.isEmpty&&(this._styles.clear(),!0):this._attrs.delete(t)}_addClass(t){this._fireChange("attributes",this);for(const e of 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e?e===this.name&&("containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t):"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class rs extends(j(os)){constructor(t,e,n,o){super(t,e,n,o),this.set("isReadOnly",!1),this.set("isFocused",!1),this.bind("isReadOnly").to(t),this.bind("isFocused").to(t,"isFocused",(e=>e&&t.selection.editableElement==this)),this.listenTo(t.selection,"change",(()=>{this.isFocused=t.isFocused&&t.selection.editableElement==this}))}destroy(){this.stopListening()}}rs.prototype.is=function(t,e){return e?e===this.name&&("editableElement"===t||"view:editableElement"===t||"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t):"editableElement"===t||"view:editableElement"===t||"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};const ss=Symbol("rootName");class as extends rs{constructor(t,e){super(t,e),this.rootName="main"}get rootName(){return this.getCustomProperty(ss)}set rootName(t){this._setCustomProperty(ss,t)}set _name(t){this.name=t}}as.prototype.is=function(t,e){return e?e===this.name&&("rootElement"===t||"view:rootElement"===t||"editableElement"===t||"view:editableElement"===t||"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t):"rootElement"===t||"view:rootElement"===t||"editableElement"===t||"view:editableElement"===t||"containerElement"===t||"view:containerElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class ls{constructor(t={}){if(!t.boundaries&&!t.startPosition)throw new b("view-tree-walker-no-start-position",null);if(t.direction&&"forward"!=t.direction&&"backward"!=t.direction)throw new b("view-tree-walker-unknown-direction",t.startPosition,{direction:t.direction});this.boundaries=t.boundaries||null,t.startPosition?this._position=cs._createAt(t.startPosition):this._position=cs._createAt(t.boundaries["backward"==t.direction?"end":"start"]),this.direction=t.direction||"forward",this.singleCharacters=!!t.singleCharacters,this.shallow=!!t.shallow,this.ignoreElementEnd=!!t.ignoreElementEnd,this._boundaryStartParent=this.boundaries?this.boundaries.start.parent:null,this._boundaryEndParent=this.boundaries?this.boundaries.end.parent:null}[Symbol.iterator](){return this}get position(){return this._position}skip(t){let e,n;do{n=this.position,e=this.next()}while(!e.done&&t(e.value));e.done||(this._position=n)}next(){return"forward"==this.direction?this._next():this._previous()}_next(){let t=this.position.clone();const e=this.position,n=t.parent;if(null===n.parent&&t.offset===n.childCount)return{done:!0,value:void 0};if(n===this._boundaryEndParent&&t.offset==this.boundaries.end.offset)return{done:!0,value:void 0};let o;if(n instanceof tr){if(t.isAtEnd)return this._position=cs._createAfter(n),this._next();o=n.data[t.offset]}else o=n.getChild(t.offset);if(o instanceof es)return this.shallow?t.offset++:t=new cs(o,0),this._position=t,this._formatReturnValue("elementStart",o,e,t,1);if(o instanceof tr){if(this.singleCharacters)return t=new cs(o,0),this._position=t,this._next();{let n,i=o.data.length;return o==this._boundaryEndParent?(i=this.boundaries.end.offset,n=new er(o,0,i),t=cs._createAfter(n)):(n=new er(o,0,o.data.length),t.offset++),this._position=t,this._formatReturnValue("text",n,e,t,i)}}if("string"==typeof o){let o;if(this.singleCharacters)o=1;else{o=(n===this._boundaryEndParent?this.boundaries.end.offset:n.data.length)-t.offset}const i=new er(n,t.offset,o);return t.offset+=o,this._position=t,this._formatReturnValue("text",i,e,t,o)}return t=cs._createAfter(n),this._position=t,this.ignoreElementEnd?this._next():this._formatReturnValue("elementEnd",n,e,t)}_previous(){let t=this.position.clone();const e=this.position,n=t.parent;if(null===n.parent&&0===t.offset)return{done:!0,value:void 0};if(n==this._boundaryStartParent&&t.offset==this.boundaries.start.offset)return{done:!0,value:void 0};let o;if(n instanceof tr){if(t.isAtStart)return this._position=cs._createBefore(n),this._previous();o=n.data[t.offset-1]}else o=n.getChild(t.offset-1);if(o instanceof es)return this.shallow?(t.offset--,this._position=t,this._formatReturnValue("elementStart",o,e,t,1)):(t=new cs(o,o.childCount),this._position=t,this.ignoreElementEnd?this._previous():this._formatReturnValue("elementEnd",o,e,t));if(o instanceof tr){if(this.singleCharacters)return t=new cs(o,o.data.length),this._position=t,this._previous();{let n,i=o.data.length;if(o==this._boundaryStartParent){const e=this.boundaries.start.offset;n=new er(o,e,o.data.length-e),i=n.data.length,t=cs._createBefore(n)}else n=new er(o,0,o.data.length),t.offset--;return this._position=t,this._formatReturnValue("text",n,e,t,i)}}if("string"==typeof o){let o;if(this.singleCharacters)o=1;else{const e=n===this._boundaryStartParent?this.boundaries.start.offset:0;o=t.offset-e}t.offset-=o;const i=new er(n,t.offset,o);return this._position=t,this._formatReturnValue("text",i,e,t,o)}return t=cs._createBefore(n),this._position=t,this._formatReturnValue("elementStart",n,e,t,1)}_formatReturnValue(t,e,n,o,i){return e instanceof er&&(e.offsetInText+e.data.length==e.textNode.data.length&&("forward"!=this.direction||this.boundaries&&this.boundaries.end.isEqual(this.position)?n=cs._createAfter(e.textNode):(o=cs._createAfter(e.textNode),this._position=o)),0===e.offsetInText&&("backward"!=this.direction||this.boundaries&&this.boundaries.start.isEqual(this.position)?n=cs._createBefore(e.textNode):(o=cs._createBefore(e.textNode),this._position=o))),{done:!1,value:{type:t,item:e,previousPosition:n,nextPosition:o,length:i}}}}class cs extends Yi{constructor(t,e){super(),this.parent=t,this.offset=e}get nodeAfter(){return this.parent.is("$text")?null:this.parent.getChild(this.offset)||null}get nodeBefore(){return this.parent.is("$text")?null:this.parent.getChild(this.offset-1)||null}get isAtStart(){return 0===this.offset}get isAtEnd(){const t=this.parent.is("$text")?this.parent.data.length:this.parent.childCount;return this.offset===t}get root(){return this.parent.root}get editableElement(){let t=this.parent;for(;!(t instanceof rs);){if(!t.parent)return null;t=t.parent}return t}getShiftedBy(t){const e=cs._createAt(this),n=e.offset+t;return e.offset=n<0?0:n,e}getLastMatchingPosition(t,e={}){e.startPosition=this;const n=new ls(e);return n.skip(t),n.position}getAncestors(){return this.parent.is("documentFragment")?[this.parent]:this.parent.getAncestors({includeSelf:!0})}getCommonAncestor(t){const e=this.getAncestors(),n=t.getAncestors();let o=0;for(;e[o]==n[o]&&e[o];)o++;return 0===o?null:e[o-1]}isEqual(t){return this.parent==t.parent&&this.offset==t.offset}isBefore(t){return"before"==this.compareWith(t)}isAfter(t){return"after"==this.compareWith(t)}compareWith(t){if(this.root!==t.root)return"different";if(this.isEqual(t))return"same";const e=this.parent.is("node")?this.parent.getPath():[],n=t.parent.is("node")?t.parent.getPath():[];e.push(this.offset),n.push(t.offset);const o=J(e,n);switch(o){case"prefix":return"before";case"extension":return"after";default:return e[o]<n[o]?"before":"after"}}getWalker(t={}){return t.startPosition=this,new ls(t)}clone(){return new cs(this.parent,this.offset)}static _createAt(t,e){if(t instanceof cs)return new this(t.parent,t.offset);{const n=t;if("end"==e)e=n.is("$text")?n.data.length:n.childCount;else{if("before"==e)return this._createBefore(n);if("after"==e)return this._createAfter(n);if(0!==e&&!e)throw new b("view-createpositionat-offset-required",n)}return new cs(n,e)}}static _createAfter(t){if(t.is("$textProxy"))return new cs(t.textNode,t.offsetInText+t.data.length);if(!t.parent)throw new b("view-position-after-root",t,{root:t});return new cs(t.parent,t.index+1)}static _createBefore(t){if(t.is("$textProxy"))return new cs(t.textNode,t.offsetInText);if(!t.parent)throw new b("view-position-before-root",t,{root:t});return new cs(t.parent,t.index)}}cs.prototype.is=function(t){return"position"===t||"view:position"===t};class ds extends Yi{constructor(t,e=null){super(),this.start=t.clone(),this.end=e?e.clone():t.clone()}*[Symbol.iterator](){yield*new ls({boundaries:this,ignoreElementEnd:!0})}get isCollapsed(){return this.start.isEqual(this.end)}get isFlat(){return this.start.parent===this.end.parent}get root(){return this.start.root}getEnlarged(){let t=this.start.getLastMatchingPosition(hs,{direction:"backward"}),e=this.end.getLastMatchingPosition(hs);return t.parent.is("$text")&&t.isAtStart&&(t=cs._createBefore(t.parent)),e.parent.is("$text")&&e.isAtEnd&&(e=cs._createAfter(e.parent)),new ds(t,e)}getTrimmed(){let t=this.start.getLastMatchingPosition(hs);if(t.isAfter(this.end)||t.isEqual(this.end))return new ds(t,t);let e=this.end.getLastMatchingPosition(hs,{direction:"backward"});const n=t.nodeAfter,o=e.nodeBefore;return n&&n.is("$text")&&(t=new cs(n,0)),o&&o.is("$text")&&(e=new cs(o,o.data.length)),new ds(t,e)}isEqual(t){return this==t||this.start.isEqual(t.start)&&this.end.isEqual(t.end)}containsPosition(t){return t.isAfter(this.start)&&t.isBefore(this.end)}containsRange(t,e=!1){t.isCollapsed&&(e=!1);const n=this.containsPosition(t.start)||e&&this.start.isEqual(t.start),o=this.containsPosition(t.end)||e&&this.end.isEqual(t.end);return n&&o}getDifference(t){const e=[];return this.isIntersecting(t)?(this.containsPosition(t.start)&&e.push(new ds(this.start,t.start)),this.containsPosition(t.end)&&e.push(new ds(t.end,this.end))):e.push(this.clone()),e}getIntersection(t){if(this.isIntersecting(t)){let e=this.start,n=this.end;return this.containsPosition(t.start)&&(e=t.start),this.containsPosition(t.end)&&(n=t.end),new ds(e,n)}return null}getWalker(t={}){return t.boundaries=this,new ls(t)}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}getContainedElement(){if(this.isCollapsed)return null;let t=this.start.nodeAfter,e=this.end.nodeBefore;return this.start.parent.is("$text")&&this.start.isAtEnd&&this.start.parent.nextSibling&&(t=this.start.parent.nextSibling),this.end.parent.is("$text")&&this.end.isAtStart&&this.end.parent.previousSibling&&(e=this.end.parent.previousSibling),t&&t.is("element")&&t===e?t:null}clone(){return new ds(this.start,this.end)}*getItems(t={}){t.boundaries=this,t.ignoreElementEnd=!0;const e=new ls(t);for(const t of e)yield t.item}*getPositions(t={}){t.boundaries=this;const e=new ls(t);yield e.position;for(const t of e)yield t.nextPosition}isIntersecting(t){return this.start.isBefore(t.end)&&this.end.isAfter(t.start)}static _createFromParentsAndOffsets(t,e,n,o){return new this(new cs(t,e),new cs(n,o))}static _createFromPositionAndShift(t,e){const n=t,o=t.getShiftedBy(e);return e>0?new this(n,o):new this(o,n)}static _createIn(t){return this._createFromParentsAndOffsets(t,0,t,t.childCount)}static _createOn(t){const e=t.is("$textProxy")?t.offsetSize:1;return this._createFromPositionAndShift(cs._createBefore(t),e)}}function hs(t){return!(!t.item.is("attributeElement")&&!t.item.is("uiElement"))}ds.prototype.is=function(t){return"range"===t||"view:range"===t};class us extends(T(Yi)){constructor(...t){super(),this._ranges=[],this._lastRangeBackward=!1,this._isFake=!1,this._fakeSelectionLabel="",t.length&&this.setTo(...t)}get isFake(){return this._isFake}get fakeSelectionLabel(){return this._fakeSelectionLabel}get anchor(){if(!this._ranges.length)return null;const t=this._ranges[this._ranges.length-1];return(this._lastRangeBackward?t.end:t.start).clone()}get focus(){if(!this._ranges.length)return null;const t=this._ranges[this._ranges.length-1];return(this._lastRangeBackward?t.start:t.end).clone()}get isCollapsed(){return 1===this.rangeCount&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}get editableElement(){return this.anchor?this.anchor.editableElement:null}*getRanges(){for(const t of this._ranges)yield t.clone()}getFirstRange(){let t=null;for(const e of this._ranges)t&&!e.start.isBefore(t.start)||(t=e);return t?t.clone():null}getLastRange(){let t=null;for(const e of this._ranges)t&&!e.end.isAfter(t.end)||(t=e);return t?t.clone():null}getFirstPosition(){const t=this.getFirstRange();return t?t.start.clone():null}getLastPosition(){const t=this.getLastRange();return t?t.end.clone():null}isEqual(t){if(this.isFake!=t.isFake)return!1;if(this.isFake&&this.fakeSelectionLabel!=t.fakeSelectionLabel)return!1;if(this.rangeCount!=t.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(t.anchor)||!this.focus.isEqual(t.focus))return!1;for(const e of this._ranges){let n=!1;for(const o of t._ranges)if(e.isEqual(o)){n=!0;break}if(!n)return!1}return!0}isSimilar(t){if(this.isBackward!=t.isBackward)return!1;const e=Z(this.getRanges());if(e!=Z(t.getRanges()))return!1;if(0==e)return!0;for(let e of this.getRanges()){e=e.getTrimmed();let n=!1;for(let o of t.getRanges())if(o=o.getTrimmed(),e.start.isEqual(o.start)&&e.end.isEqual(o.end)){n=!0;break}if(!n)return!1}return!0}getSelectedElement(){return 1!==this.rangeCount?null:this.getFirstRange().getContainedElement()}setTo(...t){let[e,n,o]=t;if("object"==typeof n&&(o=n,n=void 0),null===e)this._setRanges([]),this._setFakeOptions(o);else if(e instanceof us||e instanceof gs)this._setRanges(e.getRanges(),e.isBackward),this._setFakeOptions({fake:e.isFake,label:e.fakeSelectionLabel});else if(e instanceof ds)this._setRanges([e],o&&o.backward),this._setFakeOptions(o);else if(e instanceof cs)this._setRanges([new ds(e)]),this._setFakeOptions(o);else if(e instanceof Xi){const t=!!o&&!!o.backward;let i;if(void 0===n)throw new b("view-selection-setto-required-second-parameter",this);i="in"==n?ds._createIn(e):"on"==n?ds._createOn(e):new ds(cs._createAt(e,n)),this._setRanges([i],t),this._setFakeOptions(o)}else{if(!Y(e))throw new b("view-selection-setto-not-selectable",this);this._setRanges(e,o&&o.backward),this._setFakeOptions(o)}this.fire("change")}setFocus(t,e){if(null===this.anchor)throw new b("view-selection-setfocus-no-ranges",this);const n=cs._createAt(t,e);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.pop(),"before"==n.compareWith(o)?this._addRange(new ds(n,o),!0):this._addRange(new ds(o,n)),this.fire("change")}_setRanges(t,e=!1){t=Array.from(t),this._ranges=[];for(const e of t)this._addRange(e);this._lastRangeBackward=!!e}_setFakeOptions(t={}){this._isFake=!!t.fake,this._fakeSelectionLabel=t.fake&&t.label||""}_addRange(t,e=!1){if(!(t instanceof ds))throw new b("view-selection-add-range-not-range",this);this._pushRange(t),this._lastRangeBackward=!!e}_pushRange(t){for(const e of this._ranges)if(t.isIntersecting(e))throw new b("view-selection-range-intersects",this,{addedRange:t,intersectingRange:e});this._ranges.push(new ds(t.start,t.end))}}us.prototype.is=function(t){return"selection"===t||"view:selection"===t};class gs extends(T(Yi)){constructor(...t){super(),this._selection=new us,this._selection.delegate("change").to(this),t.length&&this._selection.setTo(...t)}get isFake(){return this._selection.isFake}get fakeSelectionLabel(){return this._selection.fakeSelectionLabel}get anchor(){return this._selection.anchor}get focus(){return this._selection.focus}get isCollapsed(){return this._selection.isCollapsed}get rangeCount(){return this._selection.rangeCount}get isBackward(){return this._selection.isBackward}get editableElement(){return this._selection.editableElement}get _ranges(){return this._selection._ranges}*getRanges(){yield*this._selection.getRanges()}getFirstRange(){return this._selection.getFirstRange()}getLastRange(){return this._selection.getLastRange()}getFirstPosition(){return this._selection.getFirstPosition()}getLastPosition(){return this._selection.getLastPosition()}getSelectedElement(){return this._selection.getSelectedElement()}isEqual(t){return this._selection.isEqual(t)}isSimilar(t){return this._selection.isSimilar(t)}_setTo(...t){this._selection.setTo(...t)}_setFocus(t,e){this._selection.setFocus(t,e)}}gs.prototype.is=function(t){return"selection"===t||"documentSelection"==t||"view:selection"==t||"view:documentSelection"==t};class ms extends h{constructor(t,e,n){super(t,e),this.startRange=n,this._eventPhase="none",this._currentTarget=null}get eventPhase(){return this._eventPhase}get currentTarget(){return this._currentTarget}}const ps=Symbol("bubbling contexts");function fs(t){return class extends t{fire(t,...e){try{const n=t instanceof h?t:new h(this,t),o=_s(this);if(!o.size)return;if(bs(n,"capturing",this),ks(o,"$capture",n,...e))return n.return;const i=n.startRange||this.selection.getFirstRange(),r=i?i.getContainedElement():null,s=!!r&&Boolean(ws(o,r));let a=r||function(t){if(!t)return null;const e=t.start.parent,n=t.end.parent,o=e.getPath(),i=n.getPath();return o.length>i.length?e:n}(i);if(bs(n,"atTarget",a),!s){if(ks(o,"$text",n,...e))return n.return;bs(n,"bubbling",a)}for(;a;){if(a.is("rootElement")){if(ks(o,"$root",n,...e))return n.return}else if(a.is("element")&&ks(o,a.name,n,...e))return n.return;if(ks(o,a,n,...e))return n.return;a=a.parent,bs(n,"bubbling",a)}return bs(n,"bubbling",this),ks(o,"$document",n,...e),n.return}catch(t){b.rethrowUnexpectedError(t,this)}}_addEventListener(t,e,n){const o=ki(n.context||"$document"),i=_s(this);for(const r of o){let o=i.get(r);o||(o=new(T()),i.set(r,o)),this.listenTo(o,t,e,n)}}_removeEventListener(t,e){const n=_s(this);for(const o of n.values())this.stopListening(o,t,e)}}}{const t=fs(Object);["fire","_addEventListener","_removeEventListener"].forEach((e=>{fs[e]=t.prototype[e]}))}function bs(t,e,n){t instanceof ms&&(t._eventPhase=e,t._currentTarget=n)}function ks(t,e,n,...o){const i="string"==typeof e?t.get(e):ws(t,e);return!!i&&(i.fire(n,...o),n.stop.called)}function ws(t,e){for(const[n,o]of t)if("function"==typeof n&&n(e))return o;return null}function _s(t){return t[ps]||(t[ps]=new Map),t[ps]}class As extends(fs(j())){constructor(t){super(),this._postFixers=new Set,this.selection=new gs,this.roots=new vi({idProperty:"rootName"}),this.stylesProcessor=t,this.set("isReadOnly",!1),this.set("isFocused",!1),this.set("isSelecting",!1),this.set("isComposing",!1)}getRoot(t="main"){return this.roots.get(t)}registerPostFixer(t){this._postFixers.add(t)}destroy(){this.roots.map((t=>t.destroy())),this.stopListening()}_callPostFixers(t){let e=!1;do{for(const n of this._postFixers)if(e=n(t),e)break}while(e)}}class Cs extends es{constructor(t,e,n,o){super(t,e,n,o),this._priority=10,this._id=null,this._clonesGroup=null,this.getFillerOffset=vs}get priority(){return this._priority}get id(){return this._id}getElementsWithSameId(){if(null===this.id)throw new b("attribute-element-get-elements-with-same-id-no-id",this);return new Set(this._clonesGroup)}isSimilar(t){return null!==this.id||null!==t.id?this.id===t.id:super.isSimilar(t)&&this.priority==t.priority}_clone(t=!1){const e=super._clone(t);return e._priority=this._priority,e._id=this._id,e}}function vs(){if(ys(this))return null;let t=this.parent;for(;t&&t.is("attributeElement");){if(ys(t)>1)return null;t=t.parent}return!t||ys(t)>1?null:this.childCount}function ys(t){return Array.from(t.getChildren()).filter((t=>!t.is("uiElement"))).length}Cs.DEFAULT_PRIORITY=10,Cs.prototype.is=function(t,e){return e?e===this.name&&("attributeElement"===t||"view:attributeElement"===t||"element"===t||"view:element"===t):"attributeElement"===t||"view:attributeElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class xs extends es{constructor(t,e,n,o){super(t,e,n,o),this.getFillerOffset=Es}_insertChild(t,e){if(e&&(e instanceof Xi||Array.from(e).length>0))throw new b("view-emptyelement-cannot-add",[this,e]);return 0}}function Es(){return null}xs.prototype.is=function(t,e){return e?e===this.name&&("emptyElement"===t||"view:emptyElement"===t||"element"===t||"view:element"===t):"emptyElement"===t||"view:emptyElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class Ts extends es{constructor(t,e,n,o){super(t,e,n,o),this.getFillerOffset=Ss}_insertChild(t,e){if(e&&(e instanceof Xi||Array.from(e).length>0))throw new b("view-uielement-cannot-add",[this,e]);return 0}render(t,e){return this.toDomElement(t)}toDomElement(t){const e=t.createElement(this.name);for(const t of this.getAttributeKeys())e.setAttribute(t,this.getAttribute(t));return e}}function Ds(t){t.document.on("arrowKey",((e,n)=>function(t,e,n){if(e.keyCode==ui.arrowright){const t=e.domTarget.ownerDocument.defaultView.getSelection(),o=1==t.rangeCount&&t.getRangeAt(0).collapsed;if(o||e.shiftKey){const e=t.focusNode,i=t.focusOffset,r=n.domPositionToView(e,i);if(null===r)return;let s=!1;const a=r.getLastMatchingPosition((t=>(t.item.is("uiElement")&&(s=!0),!(!t.item.is("uiElement")&&!t.item.is("attributeElement")))));if(s){const e=n.viewPositionToDom(a);o?t.collapse(e.parent,e.offset):t.extend(e.parent,e.offset)}}}}(0,n,t.domConverter)),{priority:"low"})}function Ss(){return null}Ts.prototype.is=function(t,e){return e?e===this.name&&("uiElement"===t||"view:uiElement"===t||"element"===t||"view:element"===t):"uiElement"===t||"view:uiElement"===t||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class Bs extends es{constructor(t,e,n,o){super(t,e,n,o),this.getFillerOffset=Is}_insertChild(t,e){if(e&&(e instanceof Xi||Array.from(e).length>0))throw new b("view-rawelement-cannot-add",[this,e]);return 0}render(t,e){}}function Is(){return null}Bs.prototype.is=function(t,e){return e?e===this.name&&("rawElement"===t||"view:rawElement"===t||"element"===t||"view:element"===t):"rawElement"===t||"view:rawElement"===t||t===this.name||t==="view:"+this.name||"element"===t||"view:element"===t||"node"===t||"view:node"===t};class Ps extends(T(Yi)){constructor(t,e){super(),this._children=[],this._customProperties=new Map,this.document=t,e&&this._insertChild(0,e)}[Symbol.iterator](){return this._children[Symbol.iterator]()}get childCount(){return this._children.length}get isEmpty(){return 0===this.childCount}get root(){return this}get parent(){return null}get name(){}getCustomProperty(t){return this._customProperties.get(t)}*getCustomProperties(){yield*this._customProperties.entries()}_appendChild(t){return this._insertChild(this.childCount,t)}getChild(t){return this._children[t]}getChildIndex(t){return this._children.indexOf(t)}getChildren(){return this._children[Symbol.iterator]()}_insertChild(t,e){this._fireChange("children",this);let n=0;const o=function(t,e){if("string"==typeof e)return[new tr(t,e)];Y(e)||(e=[e]);return Array.from(e).map((e=>"string"==typeof e?new tr(t,e):e instanceof er?new tr(t,e.data):e))}(this.document,e);for(const e of o)null!==e.parent&&e._remove(),e.parent=this,this._children.splice(t,0,e),t++,n++;return n}_removeChildren(t,e=1){this._fireChange("children",this);for(let n=t;n<t+e;n++)this._children[n].parent=null;return this._children.splice(t,e)}_fireChange(t,e){this.fire("change:"+t,e)}_setCustomProperty(t,e){this._customProperties.set(t,e)}_removeCustomProperty(t){return this._customProperties.delete(t)}}Ps.prototype.is=function(t){return"documentFragment"===t||"view:documentFragment"===t};class Rs{constructor(t){this._cloneGroups=new Map,this._slotFactory=null,this.document=t}setSelection(...t){this.document.selection._setTo(...t)}setSelectionFocus(t,e){this.document.selection._setFocus(t,e)}createDocumentFragment(t){return new Ps(this.document,t)}createText(t){return new tr(this.document,t)}createAttributeElement(t,e,n={}){const o=new Cs(this.document,t,e);return"number"==typeof n.priority&&(o._priority=n.priority),n.id&&(o._id=n.id),n.renderUnsafeAttributes&&o._unsafeAttributesToRender.push(...n.renderUnsafeAttributes),o}createContainerElement(t,e,n={},o={}){let i=null;Ct(n)?o=n:i=n;const r=new os(this.document,t,e,i);return o.renderUnsafeAttributes&&r._unsafeAttributesToRender.push(...o.renderUnsafeAttributes),r}createEditableElement(t,e,n={}){const o=new rs(this.document,t,e);return n.renderUnsafeAttributes&&o._unsafeAttributesToRender.push(...n.renderUnsafeAttributes),o}createEmptyElement(t,e,n={}){const o=new xs(this.document,t,e);return n.renderUnsafeAttributes&&o._unsafeAttributesToRender.push(...n.renderUnsafeAttributes),o}createUIElement(t,e,n){const o=new Ts(this.document,t,e);return n&&(o.render=n),o}createRawElement(t,e,n,o={}){const i=new Bs(this.document,t,e);return n&&(i.render=n),o.renderUnsafeAttributes&&i._unsafeAttributesToRender.push(...o.renderUnsafeAttributes),i}setAttribute(t,e,n){n._setAttribute(t,e)}removeAttribute(t,e){e._removeAttribute(t)}addClass(t,e){e._addClass(t)}removeClass(t,e){e._removeClass(t)}setStyle(t,e,n){Ct(t)&&void 0===n?e._setStyle(t):n._setStyle(t,e)}removeStyle(t,e){e._removeStyle(t)}setCustomProperty(t,e,n){n._setCustomProperty(t,e)}removeCustomProperty(t,e){return e._removeCustomProperty(t)}breakAttributes(t){return t instanceof cs?this._breakAttributes(t):this._breakAttributesRange(t)}breakContainer(t){const e=t.parent;if(!e.is("containerElement"))throw new b("view-writer-break-non-container-element",this.document);if(!e.parent)throw new b("view-writer-break-root",this.document);if(t.isAtStart)return cs._createBefore(e);if(!t.isAtEnd){const n=e._clone(!1);this.insert(cs._createAfter(e),n);const o=new ds(t,cs._createAt(e,"end")),i=new cs(n,0);this.move(o,i)}return cs._createAfter(e)}mergeAttributes(t){const e=t.offset,n=t.parent;if(n.is("$text"))return t;if(n.is("attributeElement")&&0===n.childCount){const t=n.parent,e=n.index;return n._remove(),this._removeFromClonedElementsGroup(n),this.mergeAttributes(new cs(t,e))}const o=n.getChild(e-1),i=n.getChild(e);if(!o||!i)return t;if(o.is("$text")&&i.is("$text"))return Ns(o,i);if(o.is("attributeElement")&&i.is("attributeElement")&&o.isSimilar(i)){const t=o.childCount;return o._appendChild(i.getChildren()),i._remove(),this._removeFromClonedElementsGroup(i),this.mergeAttributes(new cs(o,t))}return t}mergeContainers(t){const e=t.nodeBefore,n=t.nodeAfter;if(!(e&&n&&e.is("containerElement")&&n.is("containerElement")))throw new b("view-writer-merge-containers-invalid-position",this.document);const o=e.getChild(e.childCount-1),i=o instanceof tr?cs._createAt(o,"end"):cs._createAt(e,"end");return this.move(ds._createIn(n),cs._createAt(e,"end")),this.remove(ds._createOn(n)),i}insert(t,e){Ls(e=Y(e)?[...e]:[e],this.document);const n=e.reduce(((t,e)=>{const n=t[t.length-1],o=!e.is("uiElement");return n&&n.breakAttributes==o?n.nodes.push(e):t.push({breakAttributes:o,nodes:[e]}),t}),[]);let o=null,i=t;for(const{nodes:t,breakAttributes:e}of n){const n=this._insertNodes(i,t,e);o||(o=n.start),i=n.end}return o?new ds(o,i):new ds(t)}remove(t){const e=t instanceof ds?t:ds._createOn(t);if(js(e,this.document),e.isCollapsed)return new Ps(this.document);const{start:n,end:o}=this._breakAttributesRange(e,!0),i=n.parent,r=o.offset-n.offset,s=i._removeChildren(n.offset,r);for(const t of s)this._removeFromClonedElementsGroup(t);const a=this.mergeAttributes(n);return e.start=a,e.end=a.clone(),new Ps(this.document,s)}clear(t,e){js(t,this.document);const n=t.getWalker({direction:"backward",ignoreElementEnd:!0});for(const o of n){const n=o.item;let i;if(n.is("element")&&e.isSimilar(n))i=ds._createOn(n);else if(!o.nextPosition.isAfter(t.start)&&n.is("$textProxy")){const t=n.getAncestors().find((t=>t.is("element")&&e.isSimilar(t)));t&&(i=ds._createIn(t))}i&&(i.end.isAfter(t.end)&&(i.end=t.end),i.start.isBefore(t.start)&&(i.start=t.start),this.remove(i))}}move(t,e){let n;if(e.isAfter(t.end)){const o=(e=this._breakAttributes(e,!0)).parent,i=o.childCount;t=this._breakAttributesRange(t,!0),n=this.remove(t),e.offset+=o.childCount-i}else n=this.remove(t);return this.insert(e,n)}wrap(t,e){if(!(e instanceof Cs))throw new b("view-writer-wrap-invalid-attribute",this.document);if(js(t,this.document),t.isCollapsed){let o=t.start;o.parent.is("element")&&(n=o.parent,!Array.from(n.getChildren()).some((t=>!t.is("uiElement"))))&&(o=o.getLastMatchingPosition((t=>t.item.is("uiElement")))),o=this._wrapPosition(o,e);const i=this.document.selection;return i.isCollapsed&&i.getFirstPosition().isEqual(t.start)&&this.setSelection(o),new ds(o)}return this._wrapRange(t,e);var n}unwrap(t,e){if(!(e instanceof Cs))throw new b("view-writer-unwrap-invalid-attribute",this.document);if(js(t,this.document),t.isCollapsed)return t;const{start:n,end:o}=this._breakAttributesRange(t,!0),i=n.parent,r=this._unwrapChildren(i,n.offset,o.offset,e),s=this.mergeAttributes(r.start);s.isEqual(r.start)||r.end.offset--;const a=this.mergeAttributes(r.end);return new ds(s,a)}rename(t,e){const n=new os(this.document,t,e.getAttributes());return this.insert(cs._createAfter(e),n),this.move(ds._createIn(e),cs._createAt(n,0)),this.remove(ds._createOn(e)),n}clearClonedElementsGroup(t){this._cloneGroups.delete(t)}createPositionAt(t,e){return cs._createAt(t,e)}createPositionAfter(t){return cs._createAfter(t)}createPositionBefore(t){return cs._createBefore(t)}createRange(t,e){return new ds(t,e)}createRangeOn(t){return ds._createOn(t)}createRangeIn(t){return ds._createIn(t)}createSelection(...t){return new us(...t)}createSlot(t="children"){if(!this._slotFactory)throw new b("view-writer-invalid-create-slot-context",this.document);return this._slotFactory(this,t)}_registerSlotFactory(t){this._slotFactory=t}_clearSlotFactory(){this._slotFactory=null}_insertNodes(t,e,n){let o,i;if(o=n?zs(t):t.parent.is("$text")?t.parent.parent:t.parent,!o)throw new b("view-writer-invalid-position-container",this.document);i=n?this._breakAttributes(t,!0):t.parent.is("$text")?Fs(t):t;const r=o._insertChild(i.offset,e);for(const t of e)this._addToClonedElementsGroup(t);const s=i.getShiftedBy(r),a=this.mergeAttributes(i);a.isEqual(i)||s.offset--;const l=this.mergeAttributes(s);return new ds(a,l)}_wrapChildren(t,e,n,o){let i=e;const r=[];for(;i<n;){const e=t.getChild(i),n=e.is("$text"),s=e.is("attributeElement");if(s&&this._wrapAttributeElement(o,e))r.push(new cs(t,i));else if(n||!s||Vs(o,e)){const n=o._clone();e._remove(),n._appendChild(e),t._insertChild(i,n),this._addToClonedElementsGroup(n),r.push(new cs(t,i))}else this._wrapChildren(e,0,e.childCount,o);i++}let s=0;for(const t of r){if(t.offset-=s,t.offset==e)continue;this.mergeAttributes(t).isEqual(t)||(s++,n--)}return ds._createFromParentsAndOffsets(t,e,t,n)}_unwrapChildren(t,e,n,o){let i=e;const r=[];for(;i<n;){const e=t.getChild(i);if(e.is("attributeElement"))if(e.isSimilar(o)){const o=e.getChildren(),s=e.childCount;e._remove(),t._insertChild(i,o),this._removeFromClonedElementsGroup(e),r.push(new cs(t,i),new cs(t,i+s)),i+=s,n+=s-1}else this._unwrapAttributeElement(o,e)?(r.push(new cs(t,i),new cs(t,i+1)),i++):(this._unwrapChildren(e,0,e.childCount,o),i++);else i++}let s=0;for(const t of r){if(t.offset-=s,t.offset==e||t.offset==n)continue;this.mergeAttributes(t).isEqual(t)||(s++,n--)}return ds._createFromParentsAndOffsets(t,e,t,n)}_wrapRange(t,e){const{start:n,end:o}=this._breakAttributesRange(t,!0),i=n.parent,r=this._wrapChildren(i,n.offset,o.offset,e),s=this.mergeAttributes(r.start);s.isEqual(r.start)||r.end.offset--;const a=this.mergeAttributes(r.end);return new ds(s,a)}_wrapPosition(t,e){if(e.isSimilar(t.parent))return Os(t.clone());t.parent.is("$text")&&(t=Fs(t));const n=this.createAttributeElement("_wrapPosition-fake-element");n._priority=Number.POSITIVE_INFINITY,n.isSimilar=()=>!1,t.parent._insertChild(t.offset,n);const o=new ds(t,t.getShiftedBy(1));this.wrap(o,e);const i=new cs(n.parent,n.index);n._remove();const r=i.nodeBefore,s=i.nodeAfter;return r instanceof tr&&s instanceof tr?Ns(r,s):Os(i)}_wrapAttributeElement(t,e){if(!qs(t,e))return!1;if(t.name!==e.name||t.priority!==e.priority)return!1;for(const n of t.getAttributeKeys())if("class"!==n&&"style"!==n&&e.hasAttribute(n)&&e.getAttribute(n)!==t.getAttribute(n))return!1;for(const n of t.getStyleNames())if(e.hasStyle(n)&&e.getStyle(n)!==t.getStyle(n))return!1;for(const n of t.getAttributeKeys())"class"!==n&&"style"!==n&&(e.hasAttribute(n)||this.setAttribute(n,t.getAttribute(n),e));for(const n of t.getStyleNames())e.hasStyle(n)||this.setStyle(n,t.getStyle(n),e);for(const n of t.getClassNames())e.hasClass(n)||this.addClass(n,e);return!0}_unwrapAttributeElement(t,e){if(!qs(t,e))return!1;if(t.name!==e.name||t.priority!==e.priority)return!1;for(const n of t.getAttributeKeys())if("class"!==n&&"style"!==n&&(!e.hasAttribute(n)||e.getAttribute(n)!==t.getAttribute(n)))return!1;if(!e.hasClass(...t.getClassNames()))return!1;for(const n of t.getStyleNames())if(!e.hasStyle(n)||e.getStyle(n)!==t.getStyle(n))return!1;for(const n of t.getAttributeKeys())"class"!==n&&"style"!==n&&this.removeAttribute(n,e);return this.removeClass(Array.from(t.getClassNames()),e),this.removeStyle(Array.from(t.getStyleNames()),e),!0}_breakAttributesRange(t,e=!1){const n=t.start,o=t.end;if(js(t,this.document),t.isCollapsed){const n=this._breakAttributes(t.start,e);return new ds(n,n)}const i=this._breakAttributes(o,e),r=i.parent.childCount,s=this._breakAttributes(n,e);return i.offset+=i.parent.childCount-r,new ds(s,i)}_breakAttributes(t,e=!1){const n=t.offset,o=t.parent;if(t.parent.is("emptyElement"))throw new b("view-writer-cannot-break-empty-element",this.document);if(t.parent.is("uiElement"))throw new b("view-writer-cannot-break-ui-element",this.document);if(t.parent.is("rawElement"))throw new b("view-writer-cannot-break-raw-element",this.document);if(!e&&o.is("$text")&&Hs(o.parent))return t.clone();if(Hs(o))return t.clone();if(o.is("$text"))return this._breakAttributes(Fs(t),e);if(n==o.childCount){const t=new cs(o.parent,o.index+1);return this._breakAttributes(t,e)}if(0===n){const t=new cs(o.parent,o.index);return this._breakAttributes(t,e)}{const t=o.index+1,i=o._clone();o.parent._insertChild(t,i),this._addToClonedElementsGroup(i);const r=o.childCount-n,s=o._removeChildren(n,r);i._appendChild(s);const a=new cs(o.parent,t);return this._breakAttributes(a,e)}}_addToClonedElementsGroup(t){if(!t.root.is("rootElement"))return;if(t.is("element"))for(const e of t.getChildren())this._addToClonedElementsGroup(e);const e=t.id;if(!e)return;let n=this._cloneGroups.get(e);n||(n=new Set,this._cloneGroups.set(e,n)),n.add(t),t._clonesGroup=n}_removeFromClonedElementsGroup(t){if(t.is("element"))for(const e of t.getChildren())this._removeFromClonedElementsGroup(e);const e=t.id;if(!e)return;const n=this._cloneGroups.get(e);n&&n.delete(t)}}function zs(t){let e=t.parent;for(;!Hs(e);){if(!e)return;e=e.parent}return e}function Vs(t,e){return t.priority<e.priority||!(t.priority>e.priority)&&t.getIdentity()<e.getIdentity()}function Os(t){const e=t.nodeBefore;if(e&&e.is("$text"))return new cs(e,e.data.length);const n=t.nodeAfter;return n&&n.is("$text")?new cs(n,0):t}function Fs(t){if(t.offset==t.parent.data.length)return new cs(t.parent.parent,t.parent.index+1);if(0===t.offset)return new cs(t.parent.parent,t.parent.index);const e=t.parent.data.slice(t.offset);return t.parent._data=t.parent.data.slice(0,t.offset),t.parent.parent._insertChild(t.parent.index+1,new tr(t.root.document,e)),new cs(t.parent.parent,t.parent.index+1)}function Ns(t,e){const n=t.data.length;return t._data+=e.data,e._remove(),new cs(t,n)}const Ms=[tr,Cs,os,xs,Bs,Ts];function Ls(t,e){for(const n of t){if(!Ms.some((t=>n instanceof t)))throw new b("view-writer-insert-invalid-node-type",e);n.is("$text")||Ls(n.getChildren(),e)}}function Hs(t){return t&&(t.is("containerElement")||t.is("documentFragment"))}function js(t,e){const n=zs(t.start),o=zs(t.end);if(!n||!o||n!==o)throw new b("view-writer-invalid-range-container",e)}function qs(t,e){return null===t.id&&null===e.id}const Ws=t=>t.createTextNode(" "),Us=t=>{const e=t.createElement("span");return e.dataset.ckeFiller="true",e.innerText=" ",e},$s=t=>{const e=t.createElement("br");return e.dataset.ckeFiller="true",e},Gs=7,Ks="⁠".repeat(Gs);function Zs(t){return Ro(t)&&t.data.substr(0,Gs)===Ks}function Js(t){return t.data.length==Gs&&Zs(t)}function Ys(t){return Zs(t)?t.data.slice(Gs):t.data}function Qs(t,e){if(e.keyCode==ui.arrowleft){const t=e.domTarget.ownerDocument.defaultView.getSelection();if(1==t.rangeCount&&t.getRangeAt(0).collapsed){const e=t.getRangeAt(0).startContainer,n=t.getRangeAt(0).startOffset;Zs(e)&&n<=Gs&&t.collapse(e,0)}}}var Xs=n(9315),ta={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Xs.Z,ta);Xs.Z.locals;class ea extends(j()){constructor(t,e){super(),this.domDocuments=new Set,this.markedAttributes=new Set,this.markedChildren=new Set,this.markedTexts=new Set,this._inlineFiller=null,this._fakeSelectionContainer=null,this.domConverter=t,this.selection=e,this.set("isFocused",!1),this.set("isSelecting",!1),i.isBlink&&!i.isAndroid&&this.on("change:isSelecting",(()=>{this.isSelecting||this.render()})),this.set("isComposing",!1),this.on("change:isComposing",(()=>{this.isComposing||this.render()}))}markToSync(t,e){if("text"===t)this.domConverter.mapViewToDom(e.parent)&&this.markedTexts.add(e);else{if(!this.domConverter.mapViewToDom(e))return;if("attributes"===t)this.markedAttributes.add(e);else{if("children"!==t){throw new b("view-renderer-unknown-type",this)}this.markedChildren.add(e)}}}render(){if(this.isComposing&&!i.isAndroid)return;let t=null;const e=!(i.isBlink&&!i.isAndroid)||!this.isSelecting;for(const t of this.markedChildren)this._updateChildrenMappings(t);e?(this._inlineFiller&&!this._isSelectionInInlineFiller()&&this._removeInlineFiller(),this._inlineFiller?t=this._getInlineFillerPosition():this._needsInlineFillerAtSelection()&&(t=this.selection.getFirstPosition(),this.markedChildren.add(t.parent))):this._inlineFiller&&this._inlineFiller.parentNode&&(t=this.domConverter.domPositionToView(this._inlineFiller),t&&t.parent.is("$text")&&(t=cs._createBefore(t.parent)));for(const t of this.markedAttributes)this._updateAttrs(t);for(const e of this.markedChildren)this._updateChildren(e,{inlineFillerPosition:t});for(const e of this.markedTexts)!this.markedChildren.has(e.parent)&&this.domConverter.mapViewToDom(e.parent)&&this._updateText(e,{inlineFillerPosition:t});if(e)if(t){const e=this.domConverter.viewPositionToDom(t),n=e.parent.ownerDocument;Zs(e.parent)?this._inlineFiller=e.parent:this._inlineFiller=na(n,e.parent,e.offset)}else this._inlineFiller=null;this._updateFocus(),this._updateSelection(),this.markedTexts.clear(),this.markedAttributes.clear(),this.markedChildren.clear()}_updateChildrenMappings(t){if(!this.domConverter.mapViewToDom(t))return;const e=Array.from(this.domConverter.mapViewToDom(t).childNodes),n=Array.from(this.domConverter.viewChildrenToDom(t,{withChildren:!1})),o=this._diffNodeLists(e,n),i=this._findUpdateActions(o,e,n,oa);if(-1!==i.indexOf("update")){const o={equal:0,insert:0,delete:0};for(const r of i)if("update"===r){const i=o.equal+o.insert,r=o.equal+o.delete,s=t.getChild(i);!s||s.is("uiElement")||s.is("rawElement")||this._updateElementMappings(s,e[r]),Xo(n[i]),o.equal++}else o[r]++}}_updateElementMappings(t,e){this.domConverter.unbindDomElement(e),this.domConverter.bindElements(e,t),this.markedChildren.add(t),this.markedAttributes.add(t)}_getInlineFillerPosition(){const t=this.selection.getFirstPosition();return t.parent.is("$text")?cs._createBefore(t.parent):t}_isSelectionInInlineFiller(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const t=this.selection.getFirstPosition(),e=this.domConverter.viewPositionToDom(t);return!!(e&&Ro(e.parent)&&Zs(e.parent))}_removeInlineFiller(){const t=this._inlineFiller;if(!Zs(t))throw new b("view-renderer-filler-was-lost",this);Js(t)?t.remove():t.data=t.data.substr(Gs),this._inlineFiller=null}_needsInlineFillerAtSelection(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const t=this.selection.getFirstPosition(),e=t.parent,n=t.offset;if(!this.domConverter.mapViewToDom(e.root))return!1;if(!e.is("element"))return!1;if(!function(t){if("false"==t.getAttribute("contenteditable"))return!1;const e=t.findAncestor((t=>t.hasAttribute("contenteditable")));return!e||"true"==e.getAttribute("contenteditable")}(e))return!1;if(n===e.getFillerOffset())return!1;const o=t.nodeBefore,r=t.nodeAfter;return!(o instanceof tr||r instanceof tr)&&(!i.isAndroid||!o&&!r)}_updateText(t,e){const n=this.domConverter.findCorrespondingDomText(t);let o=this.domConverter.viewToDom(t).data;const i=e.inlineFillerPosition;i&&i.parent==t.parent&&i.offset==t.index&&(o=Ks+o),sa(n,o)}_updateAttrs(t){const e=this.domConverter.mapViewToDom(t);if(!e)return;const n=Array.from(e.attributes).map((t=>t.name)),o=t.getAttributeKeys();for(const n of o)this.domConverter.setDomElementAttribute(e,n,t.getAttribute(n),t);for(const o of n)t.hasAttribute(o)||this.domConverter.removeDomElementAttribute(e,o)}_updateChildren(t,e){const n=this.domConverter.mapViewToDom(t);if(!n)return;if(i.isAndroid){let t=null;for(const e of Array.from(n.childNodes)){if(t&&Ro(t)&&Ro(e)){n.normalize();break}t=e}}const o=e.inlineFillerPosition,r=n.childNodes,s=Array.from(this.domConverter.viewChildrenToDom(t,{bind:!0}));o&&o.parent===t&&na(n.ownerDocument,s,o.offset);const a=this._diffNodeLists(r,s),l=this._findUpdateActions(a,r,s,ia);let c=0;const d=new Set;for(const t of l)"delete"===t?(d.add(r[c]),Xo(r[c])):"equal"!==t&&"update"!==t||c++;c=0;for(const t of l)"insert"===t?($o(n,c,s[c]),c++):"update"===t?(sa(r[c],s[c].data),c++):"equal"===t&&(this._markDescendantTextToSync(this.domConverter.domToView(s[c])),c++);for(const t of d)t.parentNode||this.domConverter.unbindDomElement(t)}_diffNodeLists(t,e){return t=function(t,e){const n=Array.from(t);if(0==n.length||!e)return n;const o=n[n.length-1];o==e&&n.pop();return n}(t,this._fakeSelectionContainer),c(t,e,ra.bind(null,this.domConverter))}_findUpdateActions(t,e,n,o){if(-1===t.indexOf("insert")||-1===t.indexOf("delete"))return t;let i=[],r=[],s=[];const a={equal:0,insert:0,delete:0};for(const l of t)"insert"===l?s.push(n[a.equal+a.insert]):"delete"===l?r.push(e[a.equal+a.delete]):(i=i.concat(c(r,s,o).map((t=>"equal"===t?"update":t))),i.push("equal"),r=[],s=[]),a[l]++;return i.concat(c(r,s,o).map((t=>"equal"===t?"update":t)))}_markDescendantTextToSync(t){if(t)if(t.is("$text"))this.markedTexts.add(t);else if(t.is("element"))for(const e of t.getChildren())this._markDescendantTextToSync(e)}_updateSelection(){if(i.isBlink&&!i.isAndroid&&this.isSelecting&&!this.markedChildren.size)return;if(0===this.selection.rangeCount)return this._removeDomSelection(),void this._removeFakeSelection();const t=this.domConverter.mapViewToDom(this.selection.editableElement);this.isFocused&&t&&(this.selection.isFake?this._updateFakeSelection(t):this._fakeSelectionContainer&&this._fakeSelectionContainer.isConnected?(this._removeFakeSelection(),this._updateDomSelection(t)):this.isComposing&&i.isAndroid||this._updateDomSelection(t))}_updateFakeSelection(t){const e=t.ownerDocument;this._fakeSelectionContainer||(this._fakeSelectionContainer=function(t){const e=t.createElement("div");return e.className="ck-fake-selection-container",Object.assign(e.style,{position:"fixed",top:0,left:"-9999px",width:"42px"}),e.textContent=" ",e}(e));const n=this._fakeSelectionContainer;if(this.domConverter.bindFakeSelection(n,this.selection),!this._fakeSelectionNeedsUpdate(t))return;n.parentElement&&n.parentElement==t||t.appendChild(n),n.textContent=this.selection.fakeSelectionLabel||" ";const o=e.getSelection(),i=e.createRange();o.removeAllRanges(),i.selectNodeContents(n),o.addRange(i)}_updateDomSelection(t){const e=t.ownerDocument.defaultView.getSelection();if(!this._domSelectionNeedsUpdate(e))return;const n=this.domConverter.viewPositionToDom(this.selection.anchor),o=this.domConverter.viewPositionToDom(this.selection.focus);e.collapse(n.parent,n.offset),e.extend(o.parent,o.offset),i.isGecko&&function(t,e){const n=t.parent;if(n.nodeType!=Node.ELEMENT_NODE||t.offset!=n.childNodes.length-1)return;const o=n.childNodes[t.offset];o&&"BR"==o.tagName&&e.addRange(e.getRangeAt(0))}(o,e)}_domSelectionNeedsUpdate(t){if(!this.domConverter.isDomSelectionCorrect(t))return!0;const e=t&&this.domConverter.domSelectionToView(t);return(!e||!this.selection.isEqual(e))&&!(!this.selection.isCollapsed&&this.selection.isSimilar(e))}_fakeSelectionNeedsUpdate(t){const e=this._fakeSelectionContainer,n=t.ownerDocument.getSelection();return!e||e.parentElement!==t||(n.anchorNode!==e&&!e.contains(n.anchorNode)||e.textContent!==this.selection.fakeSelectionLabel)}_removeDomSelection(){for(const t of this.domDocuments){const e=t.getSelection();if(e.rangeCount){const n=t.activeElement,o=this.domConverter.mapDomToView(n);n&&o&&e.removeAllRanges()}}}_removeFakeSelection(){const t=this._fakeSelectionContainer;t&&t.remove()}_updateFocus(){if(this.isFocused){const t=this.selection.editableElement;t&&this.domConverter.focus(t)}}}function na(t,e,n){const o=e instanceof Array?e:e.childNodes,i=o[n];if(Ro(i))return i.data=Ks+i.data,i;{const i=t.createTextNode(Ks);return Array.isArray(e)?o.splice(n,0,i):$o(e,n,i),i}}function oa(t,e){return yo(t)&&yo(e)&&!Ro(t)&&!Ro(e)&&!Go(t)&&!Go(e)&&t.tagName.toLowerCase()===e.tagName.toLowerCase()}function ia(t,e){return yo(t)&&yo(e)&&Ro(t)&&Ro(e)}function ra(t,e,n){return e===n||(Ro(e)&&Ro(n)?e.data===n.data:!(!t.isBlockFiller(e)||!t.isBlockFiller(n)))}function sa(t,e){const n=t.data;if(n==e)return;const o=s(n,e);for(const e of o)"insert"===e.type?t.insertData(e.index,e.values.join("")):t.deleteData(e.index,e.howMany)}const aa=$s(Io.document),la=Ws(Io.document),ca=Us(Io.document),da="data-ck-unsafe-attribute-",ha="data-ck-unsafe-element";class ua{constructor(t,{blockFillerMode:e,renderingMode:n="editing"}={}){this._domToViewMapping=new WeakMap,this._viewToDomMapping=new WeakMap,this._fakeSelectionMapping=new WeakMap,this._rawContentElementMatcher=new nr,this._encounteredRawContentDomNodes=new WeakSet,this.document=t,this.renderingMode=n,this.blockFillerMode=e||("editing"===n?"br":"nbsp"),this.preElements=["pre"],this.blockElements=["address","article","aside","blockquote","caption","center","dd","details","dir","div","dl","dt","fieldset","figcaption","figure","footer","form","h1","h2","h3","h4","h5","h6","header","hgroup","legend","li","main","menu","nav","ol","p","pre","section","summary","table","tbody","td","tfoot","th","thead","tr","ul"],this.inlineObjectElements=["object","iframe","input","button","textarea","select","option","video","embed","audio","img","canvas"],this.unsafeElements=["script","style"],this._domDocument="editing"===this.renderingMode?Io.document:Io.document.implementation.createHTMLDocument("")}bindFakeSelection(t,e){this._fakeSelectionMapping.set(t,new us(e))}fakeSelectionToView(t){return this._fakeSelectionMapping.get(t)}bindElements(t,e){this._domToViewMapping.set(t,e),this._viewToDomMapping.set(e,t)}unbindDomElement(t){const 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el=function(t,e,n){var o=(n="function"==typeof n?n:void 0)?n(t,e):void 0;return void 0===o?tl(t,e,void 0,n):!!o};class nl extends fa{constructor(t){super(t),this._config={childList:!0,characterData:!0,subtree:!0},this.domConverter=t.domConverter,this.renderer=t._renderer,this._domElements=new Set,this._mutationObserver=new window.MutationObserver(this._onMutations.bind(this))}flush(){this._onMutations(this._mutationObserver.takeRecords())}observe(t){this._domElements.add(t),this.isEnabled&&this._mutationObserver.observe(t,this._config)}stopObserving(t){if(this._domElements.delete(t),this.isEnabled){this._mutationObserver.disconnect();for(const t of this._domElements)this._mutationObserver.observe(t,this._config)}}enable(){super.enable();for(const t of this._domElements)this._mutationObserver.observe(t,this._config)}disable(){super.disable(),this._mutationObserver.disconnect()}destroy(){super.destroy(),this._mutationObserver.disconnect()}_onMutations(t){if(0===t.length)return;const e=this.domConverter,n=new Set,o=new Set;for(const n of t){const t=e.mapDomToView(n.target);t&&(t.is("uiElement")||t.is("rawElement")||"childList"!==n.type||this._isBogusBrMutation(n)||o.add(t))}for(const i of t){const t=e.mapDomToView(i.target);if((!t||!t.is("uiElement")&&!t.is("rawElement"))&&"characterData"===i.type){const t=e.findCorrespondingViewText(i.target);t&&!o.has(t.parent)?n.add(t):!t&&Zs(i.target)&&o.add(e.mapDomToView(i.target.parentNode))}}let i=!1;for(const t of n)i=!0,this.renderer.markToSync("text",t);for(const t of o){const n=e.mapViewToDom(t),o=Array.from(t.getChildren()),r=Array.from(e.domChildrenToView(n,{withChildren:!1}));el(o,r,ol)||(i=!0,this.renderer.markToSync("children",t))}i&&this.view.forceRender()}_isBogusBrMutation(t){let e=null;return null===t.nextSibling&&0===t.removedNodes.length&&1==t.addedNodes.length&&(e=this.domConverter.domToView(t.addedNodes[0],{withChildren:!1})),e&&e.is("element","br")}}function ol(t,e){if(!Array.isArray(t))return t===e||!(!t.is("$text")||!e.is("$text"))&&t.data===e.data}class il extends wa{constructor(t){super(t),this._isFocusChanging=!1,this.domEventType=["focus","blur"],this.useCapture=!0;const e=this.document;e.on("focus",(()=>{this._isFocusChanging=!0,this._renderTimeoutId=setTimeout((()=>{this.flush(),t.change((()=>{}))}),50)})),e.on("blur",((n,o)=>{const i=e.selection.editableElement;null!==i&&i!==o.target||(e.isFocused=!1,this._isFocusChanging=!1,t.change((()=>{})))}))}flush(){this._isFocusChanging&&(this._isFocusChanging=!1,this.document.isFocused=!0)}onDomEvent(t){this.fire(t.type,t)}destroy(){this._renderTimeoutId&&clearTimeout(this._renderTimeoutId),super.destroy()}}class rl extends fa{constructor(t){super(t),this.mutationObserver=t.getObserver(nl),this.focusObserver=t.getObserver(il),this.selection=this.document.selection,this.domConverter=t.domConverter,this._documents=new WeakSet,this._fireSelectionChangeDoneDebounced=Ra((t=>{this.document.fire("selectionChangeDone",t)}),200),this._clearInfiniteLoopInterval=setInterval((()=>this._clearInfiniteLoop()),1e3),this._documentIsSelectingInactivityTimeoutDebounced=Ra((()=>this.document.isSelecting=!1),5e3),this._loopbackCounter=0}observe(t){const e=t.ownerDocument,n=()=>{this.document.isSelecting&&(this._handleSelectionChange(null,e),this.document.isSelecting=!1,this._documentIsSelectingInactivityTimeoutDebounced.cancel())};this.listenTo(t,"selectstart",(()=>{this.document.isSelecting=!0,this._documentIsSelectingInactivityTimeoutDebounced()}),{priority:"highest"}),this.listenTo(t,"keydown",n,{priority:"highest",useCapture:!0}),this.listenTo(t,"keyup",n,{priority:"highest",useCapture:!0}),this._documents.has(e)||(this.listenTo(e,"mouseup",n,{priority:"highest",useCapture:!0}),this.listenTo(e,"selectionchange",((t,n)=>{this.document.isComposing&&!i.isAndroid||(this._handleSelectionChange(n,e),this._documentIsSelectingInactivityTimeoutDebounced())})),this._documents.add(e))}stopObserving(t){this.stopListening(t)}destroy(){super.destroy(),clearInterval(this._clearInfiniteLoopInterval),this._fireSelectionChangeDoneDebounced.cancel(),this._documentIsSelectingInactivityTimeoutDebounced.cancel()}_reportInfiniteLoop(){}_handleSelectionChange(t,e){if(!this.isEnabled)return;const n=e.defaultView.getSelection();if(this.checkShouldIgnoreEventFromTarget(n.anchorNode))return;this.mutationObserver.flush();const o=this.domConverter.domSelectionToView(n);if(0!=o.rangeCount){if(this.view.hasDomSelection=!0,!this.selection.isEqual(o)||!this.domConverter.isDomSelectionCorrect(n))if(++this._loopbackCounter>60)this._reportInfiniteLoop();else if(this.focusObserver.flush(),this.selection.isSimilar(o))this.view.forceRender();else{const t={oldSelection:this.selection,newSelection:o,domSelection:n};this.document.fire("selectionChange",t),this._fireSelectionChangeDoneDebounced(t)}}else this.view.hasDomSelection=!1}_clearInfiniteLoop(){this._loopbackCounter=0}}class sl extends wa{constructor(t){super(t),this.domEventType=["compositionstart","compositionupdate","compositionend"];const e=this.document;e.on("compositionstart",(()=>{e.isComposing=!0}),{priority:"low"}),e.on("compositionend",(()=>{e.isComposing=!1}),{priority:"low"})}onDomEvent(t){this.fire(t.type,t,{data:t.data})}}class al{constructor(t,e={}){this._files=e.cacheFiles?ll(t):null,this._native=t}get files(){return this._files||(this._files=ll(this._native)),this._files}get types(){return this._native.types}getData(t){return this._native.getData(t)}setData(t,e){this._native.setData(t,e)}set effectAllowed(t){this._native.effectAllowed=t}get effectAllowed(){return this._native.effectAllowed}set dropEffect(t){this._native.dropEffect=t}get dropEffect(){return this._native.dropEffect}get isCanceled(){return"none"==this._native.dropEffect||!!this._native.mozUserCancelled}}function ll(t){const e=Array.from(t.files||[]),n=Array.from(t.items||[]);return e.length?e:n.filter((t=>"file"===t.kind)).map((t=>t.getAsFile()))}class cl extends wa{constructor(){super(...arguments),this.domEventType="beforeinput"}onDomEvent(t){const e=t.getTargetRanges(),n=this.view,o=n.document;let r=null,s=null,a=[];if(t.dataTransfer&&(r=new al(t.dataTransfer)),null!==t.data?s=t.data:r&&(s=r.getData("text/plain")),o.selection.isFake)a=Array.from(o.selection.getRanges());else if(e.length)a=e.map((t=>n.domConverter.domRangeToView(t)));else if(i.isAndroid){const e=t.target.ownerDocument.defaultView.getSelection();a=Array.from(n.domConverter.domSelectionToView(e).getRanges())}if(i.isAndroid&&"insertCompositionText"==t.inputType&&s&&s.endsWith("\n"))this.fire(t.type,t,{inputType:"insertParagraph",targetRanges:[n.createRange(a[0].end)]});else if("insertText"==t.inputType&&s&&s.includes("\n")){const e=s.split(/\n{1,2}/g);let n=a;for(let i=0;i<e.length;i++){const s=e[i];""!=s&&(this.fire(t.type,t,{data:s,dataTransfer:r,targetRanges:n,inputType:t.inputType,isComposing:t.isComposing}),n=[o.selection.getFirstRange()]),i+1<e.length&&(this.fire(t.type,t,{inputType:"insertParagraph",targetRanges:n}),n=[o.selection.getFirstRange()])}}else this.fire(t.type,t,{data:s,dataTransfer:r,targetRanges:a,inputType:t.inputType,isComposing:t.isComposing})}}class dl extends fa{constructor(t){super(t),this.document.on("keydown",((t,e)=>{if(this.isEnabled&&((n=e.keyCode)==ui.arrowright||n==ui.arrowleft||n==ui.arrowup||n==ui.arrowdown)){const n=new ms(this.document,"arrowKey",this.document.selection.getFirstRange());this.document.fire(n,e),n.stop.called&&t.stop()}var n}))}observe(){}stopObserving(){}}class hl extends fa{constructor(t){super(t);const e=this.document;e.on("keydown",((t,n)=>{if(!this.isEnabled||n.keyCode!=ui.tab||n.ctrlKey)return;const o=new ms(e,"tab",e.selection.getFirstRange());e.fire(o,n),o.stop.called&&t.stop()}))}observe(){}stopObserving(){}}class ul extends(j()){constructor(t){super(),this.domRoots=new Map,this._initialDomRootAttributes=new WeakMap,this._observers=new Map,this._ongoingChange=!1,this._postFixersInProgress=!1,this._renderingDisabled=!1,this._hasChangedSinceTheLastRendering=!1,this.document=new As(t),this.domConverter=new ua(this.document),this.set("isRenderingInProgress",!1),this.set("hasDomSelection",!1),this._renderer=new ea(this.domConverter,this.document.selection),this._renderer.bind("isFocused","isSelecting","isComposing").to(this.document,"isFocused","isSelecting","isComposing"),this._writer=new Rs(this.document),this.addObserver(nl),this.addObserver(il),this.addObserver(rl),this.addObserver(_a),this.addObserver(za),this.addObserver(sl),this.addObserver(dl),this.addObserver(cl),this.addObserver(hl),this.document.on("arrowKey",Qs,{priority:"low"}),Ds(this),this.on("render",(()=>{this._render(),this.document.fire("layoutChanged"),this._hasChangedSinceTheLastRendering=!1})),this.listenTo(this.document.selection,"change",(()=>{this._hasChangedSinceTheLastRendering=!0})),this.listenTo(this.document,"change:isFocused",(()=>{this._hasChangedSinceTheLastRendering=!0}))}attachDomRoot(t,e="main"){const n=this.document.getRoot(e);n._name=t.tagName.toLowerCase();const o={};for(const{name:e,value:i}of Array.from(t.attributes))o[e]=i,"class"===e?this._writer.addClass(i.split(" "),n):this._writer.setAttribute(e,i,n);this._initialDomRootAttributes.set(t,o);const i=()=>{this._writer.setAttribute("contenteditable",(!n.isReadOnly).toString(),n),n.isReadOnly?this._writer.addClass("ck-read-only",n):this._writer.removeClass("ck-read-only",n)};i(),this.domRoots.set(e,t),this.domConverter.bindElements(t,n),this._renderer.markToSync("children",n),this._renderer.markToSync("attributes",n),this._renderer.domDocuments.add(t.ownerDocument),n.on("change:children",((t,e)=>this._renderer.markToSync("children",e))),n.on("change:attributes",((t,e)=>this._renderer.markToSync("attributes",e))),n.on("change:text",((t,e)=>this._renderer.markToSync("text",e))),n.on("change:isReadOnly",(()=>this.change(i))),n.on("change",(()=>{this._hasChangedSinceTheLastRendering=!0}));for(const n of this._observers.values())n.observe(t,e)}detachDomRoot(t){const e=this.domRoots.get(t);Array.from(e.attributes).forEach((({name:t})=>e.removeAttribute(t)));const n=this._initialDomRootAttributes.get(e);for(const t in n)e.setAttribute(t,n[t]);this.domRoots.delete(t),this.domConverter.unbindDomElement(e);for(const t of this._observers.values())t.stopObserving(e)}getDomRoot(t="main"){return this.domRoots.get(t)}addObserver(t){let e=this._observers.get(t);if(e)return e;e=new t(this),this._observers.set(t,e);for(const[t,n]of this.domRoots)e.observe(n,t);return e.enable(),e}getObserver(t){return this._observers.get(t)}disableObservers(){for(const t of this._observers.values())t.disable()}enableObservers(){for(const t of this._observers.values())t.enable()}scrollToTheSelection({alignToTop:t,forceScroll:e,viewportOffset:n=20,ancestorOffset:o=20}={}){const i=this.document.selection.getFirstRange();i&&ti({target:this.domConverter.viewRangeToDom(i),viewportOffset:n,ancestorOffset:o,alignToTop:t,forceScroll:e})}focus(){if(!this.document.isFocused){const t=this.document.selection.editableElement;t&&(this.domConverter.focus(t),this.forceRender())}}change(t){if(this.isRenderingInProgress||this._postFixersInProgress)throw new b("cannot-change-view-tree",this);try{if(this._ongoingChange)return t(this._writer);this._ongoingChange=!0;const e=t(this._writer);return this._ongoingChange=!1,!this._renderingDisabled&&this._hasChangedSinceTheLastRendering&&(this._postFixersInProgress=!0,this.document._callPostFixers(this._writer),this._postFixersInProgress=!1,this.fire("render")),e}catch(t){b.rethrowUnexpectedError(t,this)}}forceRender(){this._hasChangedSinceTheLastRendering=!0,this.getObserver(il).flush(),this.change((()=>{}))}destroy(){for(const t of this._observers.values())t.destroy();this.document.destroy(),this.stopListening()}createPositionAt(t,e){return cs._createAt(t,e)}createPositionAfter(t){return cs._createAfter(t)}createPositionBefore(t){return cs._createBefore(t)}createRange(t,e){return new ds(t,e)}createRangeOn(t){return ds._createOn(t)}createRangeIn(t){return ds._createIn(t)}createSelection(...t){return new us(...t)}_disableRendering(t){this._renderingDisabled=t,0==t&&this.change((()=>{}))}_render(){this.isRenderingInProgress=!0,this.disableObservers(),this._renderer.render(),this.enableObservers(),this.isRenderingInProgress=!1}}class gl{is(){throw new Error("is() method is abstract")}}class ml extends gl{constructor(t){super(),this.parent=null,this._attrs=Ti(t)}get document(){return null}get index(){let t;if(!this.parent)return null;if(null===(t=this.parent.getChildIndex(this)))throw new b("model-node-not-found-in-parent",this);return t}get startOffset(){let t;if(!this.parent)return null;if(null===(t=this.parent.getChildStartOffset(this)))throw new b("model-node-not-found-in-parent",this);return t}get offsetSize(){return 1}get endOffset(){return this.parent?this.startOffset+this.offsetSize:null}get nextSibling(){const t=this.index;return null!==t&&this.parent.getChild(t+1)||null}get previousSibling(){const t=this.index;return null!==t&&this.parent.getChild(t-1)||null}get root(){let t=this;for(;t.parent;)t=t.parent;return t}isAttached(){return null!==this.parent&&this.root.isAttached()}getPath(){const t=[];let e=this;for(;e.parent;)t.unshift(e.startOffset),e=e.parent;return t}getAncestors(t={}){const e=[];let n=t.includeSelf?this:this.parent;for(;n;)e[t.parentFirst?"push":"unshift"](n),n=n.parent;return e}getCommonAncestor(t,e={}){const n=this.getAncestors(e),o=t.getAncestors(e);let i=0;for(;n[i]==o[i]&&n[i];)i++;return 0===i?null:n[i-1]}isBefore(t){if(this==t)return!1;if(this.root!==t.root)return!1;const e=this.getPath(),n=t.getPath(),o=J(e,n);switch(o){case"prefix":return!0;case"extension":return!1;default:return e[o]<n[o]}}isAfter(t){return this!=t&&(this.root===t.root&&!this.isBefore(t))}hasAttribute(t){return this._attrs.has(t)}getAttribute(t){return this._attrs.get(t)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}toJSON(){const t={};return this._attrs.size&&(t.attributes=Array.from(this._attrs).reduce(((t,e)=>(t[e[0]]=e[1],t)),{})),t}_clone(t){return new this.constructor(this._attrs)}_remove(){this.parent._removeChildren(this.index)}_setAttribute(t,e){this._attrs.set(t,e)}_setAttributesTo(t){this._attrs=Ti(t)}_removeAttribute(t){return this._attrs.delete(t)}_clearAttributes(){this._attrs.clear()}}ml.prototype.is=function(t){return"node"===t||"model:node"===t};class pl{constructor(t){this._nodes=[],t&&this._insertNodes(0,t)}[Symbol.iterator](){return this._nodes[Symbol.iterator]()}get length(){return this._nodes.length}get maxOffset(){return this._nodes.reduce(((t,e)=>t+e.offsetSize),0)}getNode(t){return this._nodes[t]||null}getNodeIndex(t){const e=this._nodes.indexOf(t);return-1==e?null:e}getNodeStartOffset(t){const e=this.getNodeIndex(t);return null===e?null:this._nodes.slice(0,e).reduce(((t,e)=>t+e.offsetSize),0)}indexToOffset(t){if(t==this._nodes.length)return this.maxOffset;const e=this._nodes[t];if(!e)throw new b("model-nodelist-index-out-of-bounds",this);return this.getNodeStartOffset(e)}offsetToIndex(t){let e=0;for(const n of this._nodes){if(t>=e&&t<e+n.offsetSize)return this.getNodeIndex(n);e+=n.offsetSize}if(e!=t)throw new b("model-nodelist-offset-out-of-bounds",this,{offset:t,nodeList:this});return this.length}_insertNodes(t,e){for(const t of e)if(!(t instanceof ml))throw new b("model-nodelist-insertnodes-not-node",this);this._nodes=function(t,e,n,o){if(Math.max(e.length,t.length)>1e4)return t.slice(0,n).concat(e).concat(t.slice(n+o,t.length));{const i=Array.from(t);return i.splice(n,o,...e),i}}(this._nodes,Array.from(e),t,0)}_removeNodes(t,e=1){return this._nodes.splice(t,e)}toJSON(){return this._nodes.map((t=>t.toJSON()))}}class fl extends ml{constructor(t,e){super(e),this._data=t||""}get offsetSize(){return this.data.length}get data(){return this._data}toJSON(){const t=super.toJSON();return t.data=this.data,t}_clone(){return new fl(this.data,this.getAttributes())}static fromJSON(t){return new fl(t.data,t.attributes)}}fl.prototype.is=function(t){return"$text"===t||"model:$text"===t||"text"===t||"model:text"===t||"node"===t||"model:node"===t};class bl extends gl{constructor(t,e,n){if(super(),this.textNode=t,e<0||e>t.offsetSize)throw new b("model-textproxy-wrong-offsetintext",this);if(n<0||e+n>t.offsetSize)throw new b("model-textproxy-wrong-length",this);this.data=t.data.substring(e,e+n),this.offsetInText=e}get startOffset(){return null!==this.textNode.startOffset?this.textNode.startOffset+this.offsetInText:null}get offsetSize(){return this.data.length}get endOffset(){return null!==this.startOffset?this.startOffset+this.offsetSize:null}get isPartial(){return this.offsetSize!==this.textNode.offsetSize}get parent(){return this.textNode.parent}get root(){return this.textNode.root}getPath(){const t=this.textNode.getPath();return t.length>0&&(t[t.length-1]+=this.offsetInText),t}getAncestors(t={}){const e=[];let n=t.includeSelf?this:this.parent;for(;n;)e[t.parentFirst?"push":"unshift"](n),n=n.parent;return e}hasAttribute(t){return this.textNode.hasAttribute(t)}getAttribute(t){return this.textNode.getAttribute(t)}getAttributes(){return this.textNode.getAttributes()}getAttributeKeys(){return this.textNode.getAttributeKeys()}}bl.prototype.is=function(t){return"$textProxy"===t||"model:$textProxy"===t||"textProxy"===t||"model:textProxy"===t};class kl extends ml{constructor(t,e,n){super(e),this._children=new pl,this.name=t,n&&this._insertChild(0,n)}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}getChild(t){return this._children.getNode(t)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(t){return this._children.getNodeIndex(t)}getChildStartOffset(t){return this._children.getNodeStartOffset(t)}offsetToIndex(t){return this._children.offsetToIndex(t)}getNodeByPath(t){let e=this;for(const n of t)e=e.getChild(e.offsetToIndex(n));return e}findAncestor(t,e={}){let n=e.includeSelf?this:this.parent;for(;n;){if(n.name===t)return n;n=n.parent}return null}toJSON(){const t=super.toJSON();if(t.name=this.name,this._children.length>0){t.children=[];for(const e of this._children)t.children.push(e.toJSON())}return t}_clone(t=!1){const e=t?Array.from(this._children).map((t=>t._clone(!0))):void 0;return new kl(this.name,this.getAttributes(),e)}_appendChild(t){this._insertChild(this.childCount,t)}_insertChild(t,e){const n=function(t){if("string"==typeof t)return[new fl(t)];Y(t)||(t=[t]);return Array.from(t).map((t=>"string"==typeof t?new fl(t):t instanceof bl?new fl(t.data,t.getAttributes()):t))}(e);for(const t of n)null!==t.parent&&t._remove(),t.parent=this;this._children._insertNodes(t,n)}_removeChildren(t,e=1){const n=this._children._removeNodes(t,e);for(const t of n)t.parent=null;return n}static fromJSON(t){let e;if(t.children){e=[];for(const n of t.children)n.name?e.push(kl.fromJSON(n)):e.push(fl.fromJSON(n))}return new kl(t.name,t.attributes,e)}}kl.prototype.is=function(t,e){return e?e===this.name&&("element"===t||"model:element"===t):"element"===t||"model:element"===t||"node"===t||"model:node"===t};class wl{constructor(t){if(!t||!t.boundaries&&!t.startPosition)throw new b("model-tree-walker-no-start-position",null);const e=t.direction||"forward";if("forward"!=e&&"backward"!=e)throw new b("model-tree-walker-unknown-direction",t,{direction:e});this.direction=e,this.boundaries=t.boundaries||null,t.startPosition?this._position=t.startPosition.clone():this._position=Al._createAt(this.boundaries["backward"==this.direction?"end":"start"]),this.position.stickiness="toNone",this.singleCharacters=!!t.singleCharacters,this.shallow=!!t.shallow,this.ignoreElementEnd=!!t.ignoreElementEnd,this._boundaryStartParent=this.boundaries?this.boundaries.start.parent:null,this._boundaryEndParent=this.boundaries?this.boundaries.end.parent:null,this._visitedParent=this.position.parent}[Symbol.iterator](){return this}get position(){return this._position}skip(t){let e,n,o,i;do{o=this.position,i=this._visitedParent,({done:e,value:n}=this.next())}while(!e&&t(n));e||(this._position=o,this._visitedParent=i)}next(){return"forward"==this.direction?this._next():this._previous()}_next(){const t=this.position,e=this.position.clone(),n=this._visitedParent;if(null===n.parent&&e.offset===n.maxOffset)return{done:!0,value:void 0};if(n===this._boundaryEndParent&&e.offset==this.boundaries.end.offset)return{done:!0,value:void 0};const o=Cl(e,n),i=o||vl(e,n,o);if(i instanceof kl)return this.shallow?e.offset++:(e.path.push(0),this._visitedParent=i),this._position=e,_l("elementStart",i,t,e,1);if(i instanceof fl){let o;if(this.singleCharacters)o=1;else{let t=i.endOffset;this._boundaryEndParent==n&&this.boundaries.end.offset<t&&(t=this.boundaries.end.offset),o=t-e.offset}const r=e.offset-i.startOffset,s=new bl(i,r,o);return e.offset+=o,this._position=e,_l("text",s,t,e,o)}return e.path.pop(),e.offset++,this._position=e,this._visitedParent=n.parent,this.ignoreElementEnd?this._next():_l("elementEnd",n,t,e)}_previous(){const t=this.position,e=this.position.clone(),n=this._visitedParent;if(null===n.parent&&0===e.offset)return{done:!0,value:void 0};if(n==this._boundaryStartParent&&e.offset==this.boundaries.start.offset)return{done:!0,value:void 0};const o=e.parent,i=Cl(e,o),r=i||yl(e,o,i);if(r instanceof kl)return e.offset--,this.shallow?(this._position=e,_l("elementStart",r,t,e,1)):(e.path.push(r.maxOffset),this._position=e,this._visitedParent=r,this.ignoreElementEnd?this._previous():_l("elementEnd",r,t,e));if(r instanceof fl){let o;if(this.singleCharacters)o=1;else{let t=r.startOffset;this._boundaryStartParent==n&&this.boundaries.start.offset>t&&(t=this.boundaries.start.offset),o=e.offset-t}const i=e.offset-r.startOffset,s=new bl(r,i-o,o);return e.offset-=o,this._position=e,_l("text",s,t,e,o)}return e.path.pop(),this._position=e,this._visitedParent=n.parent,_l("elementStart",n,t,e,1)}}function _l(t,e,n,o,i){return{done:!1,value:{type:t,item:e,previousPosition:n,nextPosition:o,length:i}}}class Al extends gl{constructor(t,e,n="toNone"){if(super(),!t.is("element")&&!t.is("documentFragment"))throw new b("model-position-root-invalid",t);if(!(e instanceof Array)||0===e.length)throw new b("model-position-path-incorrect-format",t,{path:e});t.is("rootElement")?e=e.slice():(e=[...t.getPath(),...e],t=t.root),this.root=t,this.path=e,this.stickiness=n}get offset(){return this.path[this.path.length-1]}set offset(t){this.path[this.path.length-1]=t}get parent(){let t=this.root;for(let e=0;e<this.path.length-1;e++)if(t=t.getChild(t.offsetToIndex(this.path[e])),!t)throw new b("model-position-path-incorrect",this,{position:this});if(t.is("$text"))throw new b("model-position-path-incorrect",this,{position:this});return t}get index(){return this.parent.offsetToIndex(this.offset)}get textNode(){return Cl(this,this.parent)}get nodeAfter(){const t=this.parent;return vl(this,t,Cl(this,t))}get nodeBefore(){const t=this.parent;return yl(this,t,Cl(this,t))}get isAtStart(){return 0===this.offset}get isAtEnd(){return this.offset==this.parent.maxOffset}compareWith(t){if(this.root!=t.root)return"different";const e=J(this.path,t.path);switch(e){case"same":return"same";case"prefix":return"before";case"extension":return"after";default:return this.path[e]<t.path[e]?"before":"after"}}getLastMatchingPosition(t,e={}){e.startPosition=this;const n=new wl(e);return n.skip(t),n.position}getParentPath(){return this.path.slice(0,-1)}getAncestors(){const t=this.parent;return t.is("documentFragment")?[t]:t.getAncestors({includeSelf:!0})}findAncestor(t){const e=this.parent;return e.is("element")?e.findAncestor(t,{includeSelf:!0}):null}getCommonPath(t){if(this.root!=t.root)return[];const e=J(this.path,t.path),n="string"==typeof e?Math.min(this.path.length,t.path.length):e;return this.path.slice(0,n)}getCommonAncestor(t){const e=this.getAncestors(),n=t.getAncestors();let o=0;for(;e[o]==n[o]&&e[o];)o++;return 0===o?null:e[o-1]}getShiftedBy(t){const e=this.clone(),n=e.offset+t;return e.offset=n<0?0:n,e}isAfter(t){return"after"==this.compareWith(t)}isBefore(t){return"before"==this.compareWith(t)}isEqual(t){return"same"==this.compareWith(t)}isTouching(t){if(this.root!==t.root)return!1;const e=Math.min(this.path.length,t.path.length);for(let n=0;n<e;n++){const e=this.path[n]-t.path[n];if(e<-1||e>1)return!1;if(1===e)return xl(t,this,n);if(-1===e)return xl(this,t,n)}return this.path.length===t.path.length||(this.path.length>t.path.length?El(this.path,e):El(t.path,e))}hasSameParentAs(t){if(this.root!==t.root)return!1;return"same"==J(this.getParentPath(),t.getParentPath())}getTransformedByOperation(t){let e;switch(t.type){case"insert":e=this._getTransformedByInsertOperation(t);break;case"move":case"remove":case"reinsert":e=this._getTransformedByMoveOperation(t);break;case"split":e=this._getTransformedBySplitOperation(t);break;case"merge":e=this._getTransformedByMergeOperation(t);break;default:e=Al._createAt(this)}return e}_getTransformedByInsertOperation(t){return this._getTransformedByInsertion(t.position,t.howMany)}_getTransformedByMoveOperation(t){return this._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany)}_getTransformedBySplitOperation(t){const e=t.movedRange;return e.containsPosition(this)||e.start.isEqual(this)&&"toNext"==this.stickiness?this._getCombined(t.splitPosition,t.moveTargetPosition):t.graveyardPosition?this._getTransformedByMove(t.graveyardPosition,t.insertionPosition,1):this._getTransformedByInsertion(t.insertionPosition,1)}_getTransformedByMergeOperation(t){const e=t.movedRange;let n;return e.containsPosition(this)||e.start.isEqual(this)?(n=this._getCombined(t.sourcePosition,t.targetPosition),t.sourcePosition.isBefore(t.targetPosition)&&(n=n._getTransformedByDeletion(t.deletionPosition,1))):n=this.isEqual(t.deletionPosition)?Al._createAt(t.deletionPosition):this._getTransformedByMove(t.deletionPosition,t.graveyardPosition,1),n}_getTransformedByDeletion(t,e){const n=Al._createAt(this);if(this.root!=t.root)return n;if("same"==J(t.getParentPath(),this.getParentPath())){if(t.offset<this.offset){if(t.offset+e>this.offset)return null;n.offset-=e}}else if("prefix"==J(t.getParentPath(),this.getParentPath())){const o=t.path.length-1;if(t.offset<=this.path[o]){if(t.offset+e>this.path[o])return null;n.path[o]-=e}}return n}_getTransformedByInsertion(t,e){const n=Al._createAt(this);if(this.root!=t.root)return n;if("same"==J(t.getParentPath(),this.getParentPath()))(t.offset<this.offset||t.offset==this.offset&&"toPrevious"!=this.stickiness)&&(n.offset+=e);else if("prefix"==J(t.getParentPath(),this.getParentPath())){const o=t.path.length-1;t.offset<=this.path[o]&&(n.path[o]+=e)}return n}_getTransformedByMove(t,e,n){if(e=e._getTransformedByDeletion(t,n),t.isEqual(e))return Al._createAt(this);const o=this._getTransformedByDeletion(t,n);return null===o||t.isEqual(this)&&"toNext"==this.stickiness||t.getShiftedBy(n).isEqual(this)&&"toPrevious"==this.stickiness?this._getCombined(t,e):o._getTransformedByInsertion(e,n)}_getCombined(t,e){const n=t.path.length-1,o=Al._createAt(e);return o.stickiness=this.stickiness,o.offset=o.offset+this.path[n]-t.offset,o.path=[...o.path,...this.path.slice(n+1)],o}toJSON(){return{root:this.root.toJSON(),path:Array.from(this.path),stickiness:this.stickiness}}clone(){return new this.constructor(this.root,this.path,this.stickiness)}static _createAt(t,e,n="toNone"){if(t instanceof Al)return new Al(t.root,t.path,t.stickiness);{const o=t;if("end"==e)e=o.maxOffset;else{if("before"==e)return this._createBefore(o,n);if("after"==e)return this._createAfter(o,n);if(0!==e&&!e)throw new b("model-createpositionat-offset-required",[this,t])}if(!o.is("element")&&!o.is("documentFragment"))throw new b("model-position-parent-incorrect",[this,t]);const i=o.getPath();return i.push(e),new this(o.root,i,n)}}static _createAfter(t,e){if(!t.parent)throw new b("model-position-after-root",[this,t],{root:t});return this._createAt(t.parent,t.endOffset,e)}static _createBefore(t,e){if(!t.parent)throw new b("model-position-before-root",t,{root:t});return this._createAt(t.parent,t.startOffset,e)}static fromJSON(t,e){if("$graveyard"===t.root){const n=new Al(e.graveyard,t.path);return n.stickiness=t.stickiness,n}if(!e.getRoot(t.root))throw new b("model-position-fromjson-no-root",e,{rootName:t.root});return new Al(e.getRoot(t.root),t.path,t.stickiness)}}function Cl(t,e){const n=e.getChild(e.offsetToIndex(t.offset));return n&&n.is("$text")&&n.startOffset<t.offset?n:null}function vl(t,e,n){return null!==n?null:e.getChild(e.offsetToIndex(t.offset))}function yl(t,e,n){return null!==n?null:e.getChild(e.offsetToIndex(t.offset)-1)}function xl(t,e,n){return n+1!==t.path.length&&(!!El(e.path,n+1)&&!!function(t,e){let n=t.parent,o=t.path.length-1,i=0;for(;o>=e;){if(t.path[o]+i!==n.maxOffset)return!1;i=1,o--,n=n.parent}return!0}(t,n+1))}function El(t,e){for(;e<t.length;){if(0!==t[e])return!1;e++}return!0}Al.prototype.is=function(t){return"position"===t||"model:position"===t};class Tl extends gl{constructor(t,e){super(),this.start=Al._createAt(t),this.end=e?Al._createAt(e):Al._createAt(t),this.start.stickiness=this.isCollapsed?"toNone":"toNext",this.end.stickiness=this.isCollapsed?"toNone":"toPrevious"}*[Symbol.iterator](){yield*new wl({boundaries:this,ignoreElementEnd:!0})}get isCollapsed(){return this.start.isEqual(this.end)}get isFlat(){return"same"==J(this.start.getParentPath(),this.end.getParentPath())}get root(){return this.start.root}containsPosition(t){return t.isAfter(this.start)&&t.isBefore(this.end)}containsRange(t,e=!1){t.isCollapsed&&(e=!1);const n=this.containsPosition(t.start)||e&&this.start.isEqual(t.start),o=this.containsPosition(t.end)||e&&this.end.isEqual(t.end);return n&&o}containsItem(t){const e=Al._createBefore(t);return this.containsPosition(e)||this.start.isEqual(e)}isEqual(t){return this.start.isEqual(t.start)&&this.end.isEqual(t.end)}isIntersecting(t){return this.start.isBefore(t.end)&&this.end.isAfter(t.start)}getDifference(t){const e=[];return this.isIntersecting(t)?(this.containsPosition(t.start)&&e.push(new Tl(this.start,t.start)),this.containsPosition(t.end)&&e.push(new Tl(t.end,this.end))):e.push(new Tl(this.start,this.end)),e}getIntersection(t){if(this.isIntersecting(t)){let e=this.start,n=this.end;return this.containsPosition(t.start)&&(e=t.start),this.containsPosition(t.end)&&(n=t.end),new Tl(e,n)}return null}getJoined(t,e=!1){let n=this.isIntersecting(t);if(n||(n=this.start.isBefore(t.start)?e?this.end.isTouching(t.start):this.end.isEqual(t.start):e?t.end.isTouching(this.start):t.end.isEqual(this.start)),!n)return null;let o=this.start,i=this.end;return t.start.isBefore(o)&&(o=t.start),t.end.isAfter(i)&&(i=t.end),new Tl(o,i)}getMinimalFlatRanges(){const t=[],e=this.start.getCommonPath(this.end).length,n=Al._createAt(this.start);let o=n.parent;for(;n.path.length>e+1;){const e=o.maxOffset-n.offset;0!==e&&t.push(new Tl(n,n.getShiftedBy(e))),n.path=n.path.slice(0,-1),n.offset++,o=o.parent}for(;n.path.length<=this.end.path.length;){const e=this.end.path[n.path.length-1],o=e-n.offset;0!==o&&t.push(new Tl(n,n.getShiftedBy(o))),n.offset=e,n.path.push(0)}return t}getWalker(t={}){return t.boundaries=this,new wl(t)}*getItems(t={}){t.boundaries=this,t.ignoreElementEnd=!0;const e=new wl(t);for(const t of e)yield t.item}*getPositions(t={}){t.boundaries=this;const e=new wl(t);yield e.position;for(const t of e)yield t.nextPosition}getTransformedByOperation(t){switch(t.type){case"insert":return this._getTransformedByInsertOperation(t);case"move":case"remove":case"reinsert":return this._getTransformedByMoveOperation(t);case"split":return[this._getTransformedBySplitOperation(t)];case"merge":return[this._getTransformedByMergeOperation(t)]}return[new Tl(this.start,this.end)]}getTransformedByOperations(t){const e=[new Tl(this.start,this.end)];for(const n of t)for(let t=0;t<e.length;t++){const o=e[t].getTransformedByOperation(n);e.splice(t,1,...o),t+=o.length-1}for(let t=0;t<e.length;t++){const n=e[t];for(let o=t+1;o<e.length;o++){const t=e[o];(n.containsRange(t)||t.containsRange(n)||n.isEqual(t))&&e.splice(o,1)}}return e}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}getContainedElement(){if(this.isCollapsed)return null;const t=this.start.nodeAfter,e=this.end.nodeBefore;return t&&t.is("element")&&t===e?t:null}toJSON(){return{start:this.start.toJSON(),end:this.end.toJSON()}}clone(){return new this.constructor(this.start,this.end)}_getTransformedByInsertOperation(t,e=!1){return this._getTransformedByInsertion(t.position,t.howMany,e)}_getTransformedByMoveOperation(t,e=!1){const n=t.sourcePosition,o=t.howMany,i=t.targetPosition;return this._getTransformedByMove(n,i,o,e)}_getTransformedBySplitOperation(t){const e=this.start._getTransformedBySplitOperation(t);let n=this.end._getTransformedBySplitOperation(t);return this.end.isEqual(t.insertionPosition)&&(n=this.end.getShiftedBy(1)),e.root!=n.root&&(n=this.end.getShiftedBy(-1)),new Tl(e,n)}_getTransformedByMergeOperation(t){if(this.start.isEqual(t.targetPosition)&&this.end.isEqual(t.deletionPosition))return new Tl(this.start);let e=this.start._getTransformedByMergeOperation(t),n=this.end._getTransformedByMergeOperation(t);return e.root!=n.root&&(n=this.end.getShiftedBy(-1)),e.isAfter(n)?(t.sourcePosition.isBefore(t.targetPosition)?(e=Al._createAt(n),e.offset=0):(t.deletionPosition.isEqual(e)||(n=t.deletionPosition),e=t.targetPosition),new Tl(e,n)):new Tl(e,n)}_getTransformedByInsertion(t,e,n=!1){if(n&&this.containsPosition(t))return[new Tl(this.start,t),new Tl(t.getShiftedBy(e),this.end._getTransformedByInsertion(t,e))];{const n=new Tl(this.start,this.end);return n.start=n.start._getTransformedByInsertion(t,e),n.end=n.end._getTransformedByInsertion(t,e),[n]}}_getTransformedByMove(t,e,n,o=!1){if(this.isCollapsed){const o=this.start._getTransformedByMove(t,e,n);return[new Tl(o)]}const i=Tl._createFromPositionAndShift(t,n),r=e._getTransformedByDeletion(t,n);if(this.containsPosition(e)&&!o&&(i.containsPosition(this.start)||i.containsPosition(this.end))){const o=this.start._getTransformedByMove(t,e,n),i=this.end._getTransformedByMove(t,e,n);return[new Tl(o,i)]}let s;const a=this.getDifference(i);let l=null;const c=this.getIntersection(i);if(1==a.length?l=new Tl(a[0].start._getTransformedByDeletion(t,n),a[0].end._getTransformedByDeletion(t,n)):2==a.length&&(l=new Tl(this.start,this.end._getTransformedByDeletion(t,n))),s=l?l._getTransformedByInsertion(r,n,null!==c||o):[],c){const t=new Tl(c.start._getCombined(i.start,r),c.end._getCombined(i.start,r));2==s.length?s.splice(1,0,t):s.push(t)}return s}_getTransformedByDeletion(t,e){let n=this.start._getTransformedByDeletion(t,e),o=this.end._getTransformedByDeletion(t,e);return null==n&&null==o?null:(null==n&&(n=t),null==o&&(o=t),new Tl(n,o))}static _createFromPositionAndShift(t,e){const n=t,o=t.getShiftedBy(e);return e>0?new this(n,o):new this(o,n)}static _createIn(t){return new this(Al._createAt(t,0),Al._createAt(t,t.maxOffset))}static _createOn(t){return this._createFromPositionAndShift(Al._createBefore(t),t.offsetSize)}static _createFromRanges(t){if(0===t.length)throw new b("range-create-from-ranges-empty-array",null);if(1==t.length)return t[0].clone();const e=t[0];t.sort(((t,e)=>t.start.isAfter(e.start)?1:-1));const n=t.indexOf(e),o=new this(e.start,e.end);if(n>0)for(let e=n-1;t[e].end.isEqual(o.start);e++)o.start=Al._createAt(t[e].start);for(let e=n+1;e<t.length&&t[e].start.isEqual(o.end);e++)o.end=Al._createAt(t[e].end);return o}static fromJSON(t,e){return new this(Al.fromJSON(t.start,e),Al.fromJSON(t.end,e))}}Tl.prototype.is=function(t){return"range"===t||"model:range"===t};class Dl extends(T()){constructor(){super(),this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._viewToModelLengthCallbacks=new Map,this._markerNameToElements=new Map,this._elementToMarkerNames=new Map,this._deferredBindingRemovals=new Map,this._unboundMarkerNames=new Set,this.on("modelToViewPosition",((t,e)=>{if(e.viewPosition)return;const n=this._modelToViewMapping.get(e.modelPosition.parent);if(!n)throw new b("mapping-model-position-view-parent-not-found",this,{modelPosition:e.modelPosition});e.viewPosition=this.findPositionIn(n,e.modelPosition.offset)}),{priority:"low"}),this.on("viewToModelPosition",((t,e)=>{if(e.modelPosition)return;const n=this.findMappedViewAncestor(e.viewPosition),o=this._viewToModelMapping.get(n),i=this._toModelOffset(e.viewPosition.parent,e.viewPosition.offset,n);e.modelPosition=Al._createAt(o,i)}),{priority:"low"})}bindElements(t,e){this._modelToViewMapping.set(t,e),this._viewToModelMapping.set(e,t)}unbindViewElement(t,e={}){const n=this.toModelElement(t);if(this._elementToMarkerNames.has(t))for(const e of this._elementToMarkerNames.get(t))this._unboundMarkerNames.add(e);e.defer?this._deferredBindingRemovals.set(t,t.root):(this._viewToModelMapping.delete(t),this._modelToViewMapping.get(n)==t&&this._modelToViewMapping.delete(n))}unbindModelElement(t){const e=this.toViewElement(t);this._modelToViewMapping.delete(t),this._viewToModelMapping.get(e)==t&&this._viewToModelMapping.delete(e)}bindElementToMarker(t,e){const n=this._markerNameToElements.get(e)||new Set;n.add(t);const o=this._elementToMarkerNames.get(t)||new Set;o.add(e),this._markerNameToElements.set(e,n),this._elementToMarkerNames.set(t,o)}unbindElementFromMarkerName(t,e){const n=this._markerNameToElements.get(e);n&&(n.delete(t),0==n.size&&this._markerNameToElements.delete(e));const o=this._elementToMarkerNames.get(t);o&&(o.delete(e),0==o.size&&this._elementToMarkerNames.delete(t))}flushUnboundMarkerNames(){const t=Array.from(this._unboundMarkerNames);return this._unboundMarkerNames.clear(),t}flushDeferredBindings(){for(const[t,e]of this._deferredBindingRemovals)t.root==e&&this.unbindViewElement(t);this._deferredBindingRemovals=new Map}clearBindings(){this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._markerNameToElements=new Map,this._elementToMarkerNames=new Map,this._unboundMarkerNames=new Set,this._deferredBindingRemovals=new Map}toModelElement(t){return this._viewToModelMapping.get(t)}toViewElement(t){return this._modelToViewMapping.get(t)}toModelRange(t){return new Tl(this.toModelPosition(t.start),this.toModelPosition(t.end))}toViewRange(t){return new ds(this.toViewPosition(t.start),this.toViewPosition(t.end))}toModelPosition(t){const e={viewPosition:t,mapper:this};return this.fire("viewToModelPosition",e),e.modelPosition}toViewPosition(t,e={}){const n={modelPosition:t,mapper:this,isPhantom:e.isPhantom};return this.fire("modelToViewPosition",n),n.viewPosition}markerNameToElements(t){const e=this._markerNameToElements.get(t);if(!e)return null;const n=new Set;for(const t of e)if(t.is("attributeElement"))for(const e of t.getElementsWithSameId())n.add(e);else n.add(t);return n}registerViewToModelLength(t,e){this._viewToModelLengthCallbacks.set(t,e)}findMappedViewAncestor(t){let e=t.parent;for(;!this._viewToModelMapping.has(e);)e=e.parent;return e}_toModelOffset(t,e,n){if(n!=t){return this._toModelOffset(t.parent,t.index,n)+this._toModelOffset(t,e,t)}if(t.is("$text"))return e;let o=0;for(let n=0;n<e;n++)o+=this.getModelLength(t.getChild(n));return o}getModelLength(t){if(this._viewToModelLengthCallbacks.get(t.name)){return this._viewToModelLengthCallbacks.get(t.name)(t)}if(this._viewToModelMapping.has(t))return 1;if(t.is("$text"))return t.data.length;if(t.is("uiElement"))return 0;{let e=0;for(const n of t.getChildren())e+=this.getModelLength(n);return e}}findPositionIn(t,e){let n,o=0,i=0,r=0;if(t.is("$text"))return new cs(t,e);for(;i<e;)n=t.getChild(r),o=this.getModelLength(n),i+=o,r++;return i==e?this._moveViewPositionToTextNode(new cs(t,r)):this.findPositionIn(n,e-(i-o))}_moveViewPositionToTextNode(t){const e=t.nodeBefore,n=t.nodeAfter;return e instanceof tr?new cs(e,e.data.length):n instanceof tr?new cs(n,0):t}}class Sl{constructor(){this._consumable=new Map,this._textProxyRegistry=new Map}add(t,e){e=Bl(e),t instanceof bl&&(t=this._getSymbolForTextProxy(t)),this._consumable.has(t)||this._consumable.set(t,new Map),this._consumable.get(t).set(e,!0)}consume(t,e){return e=Bl(e),t instanceof bl&&(t=this._getSymbolForTextProxy(t)),!!this.test(t,e)&&(this._consumable.get(t).set(e,!1),!0)}test(t,e){e=Bl(e),t instanceof bl&&(t=this._getSymbolForTextProxy(t));const n=this._consumable.get(t);if(void 0===n)return null;const o=n.get(e);return void 0===o?null:o}revert(t,e){e=Bl(e),t instanceof bl&&(t=this._getSymbolForTextProxy(t));const n=this.test(t,e);return!1===n?(this._consumable.get(t).set(e,!0),!0):!0!==n&&null}verifyAllConsumed(t){const e=[];for(const[n,o]of this._consumable)for(const[i,r]of o){const o=i.split(":")[0];r&&t==o&&e.push({event:i,item:n.name||n.description})}if(e.length)throw new b("conversion-model-consumable-not-consumed",null,{items:e})}_getSymbolForTextProxy(t){let e=null;const n=this._textProxyRegistry.get(t.startOffset);if(n){const o=n.get(t.endOffset);o&&(e=o.get(t.parent))}return e||(e=this._addSymbolForTextProxy(t)),e}_addSymbolForTextProxy(t){const e=t.startOffset,n=t.endOffset,o=t.parent,i=Symbol("$textProxy:"+t.data);let r,s;return r=this._textProxyRegistry.get(e),r||(r=new Map,this._textProxyRegistry.set(e,r)),s=r.get(n),s||(s=new Map,r.set(n,s)),s.set(o,i),i}}function Bl(t){const e=t.split(":");return"insert"==e[0]?e[0]:"addMarker"==e[0]||"removeMarker"==e[0]?t:e.length>1?e[0]+":"+e[1]:e[0]}var Il=Object.defineProperty,Pl=Object.defineProperties,Rl=Object.getOwnPropertyDescriptors,zl=Object.getOwnPropertySymbols,Vl=Object.prototype.hasOwnProperty,Ol=Object.prototype.propertyIsEnumerable,Fl=(t,e,n)=>e in t?Il(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n,Nl=(t,e)=>{for(var n in e||(e={}))Vl.call(e,n)&&Fl(t,n,e[n]);if(zl)for(var n of zl(e))Ol.call(e,n)&&Fl(t,n,e[n]);return t},Ml=(t,e)=>Pl(t,Rl(e));class Ll extends(T()){constructor(t){super(),this._conversionApi=Nl({dispatcher:this},t),this._firedEventsMap=new WeakMap}convertChanges(t,e,n){const o=this._createConversionApi(n,t.getRefreshedItems());for(const e of t.getMarkersToRemove())this._convertMarkerRemove(e.name,e.range,o);const i=this._reduceChanges(t.getChanges());for(const t of i)"insert"===t.type?this._convertInsert(Tl._createFromPositionAndShift(t.position,t.length),o):"reinsert"===t.type?this._convertReinsert(Tl._createFromPositionAndShift(t.position,t.length),o):"remove"===t.type?this._convertRemove(t.position,t.length,t.name,o):this._convertAttribute(t.range,t.attributeKey,t.attributeOldValue,t.attributeNewValue,o);for(const t of o.mapper.flushUnboundMarkerNames()){const n=e.get(t).getRange();this._convertMarkerRemove(t,n,o),this._convertMarkerAdd(t,n,o)}for(const e of t.getMarkersToAdd())this._convertMarkerAdd(e.name,e.range,o);o.mapper.flushDeferredBindings(),o.consumable.verifyAllConsumed("insert")}convert(t,e,n,o={}){const i=this._createConversionApi(n,void 0,o);this._convertInsert(t,i);for(const[t,n]of e)this._convertMarkerAdd(t,n,i);i.consumable.verifyAllConsumed("insert")}convertSelection(t,e,n){const o=Array.from(e.getMarkersAtPosition(t.getFirstPosition())),i=this._createConversionApi(n);if(this._addConsumablesForSelection(i.consumable,t,o),this.fire("selection",{selection:t},i),t.isCollapsed){for(const e of o){const n=e.getRange();if(!Hl(t.getFirstPosition(),e,i.mapper))continue;const o={item:t,markerName:e.name,markerRange:n};i.consumable.test(t,"addMarker:"+e.name)&&this.fire(`addMarker:${e.name}`,o,i)}for(const e of t.getAttributeKeys()){const n={item:t,range:t.getFirstRange(),attributeKey:e,attributeOldValue:null,attributeNewValue:t.getAttribute(e)};i.consumable.test(t,"attribute:"+n.attributeKey)&&this.fire(`attribute:${n.attributeKey}:$text`,n,i)}}}_convertInsert(t,e,n={}){n.doNotAddConsumables||this._addConsumablesForInsert(e.consumable,Array.from(t));for(const n of Array.from(t.getWalker({shallow:!0})).map(jl))this._testAndFire("insert",n,e)}_convertRemove(t,e,n,o){this.fire(`remove:${n}`,{position:t,length:e},o)}_convertAttribute(t,e,n,o,i){this._addConsumablesForRange(i.consumable,t,`attribute:${e}`);for(const r of t){const t={item:r.item,range:Tl._createFromPositionAndShift(r.previousPosition,r.length),attributeKey:e,attributeOldValue:n,attributeNewValue:o};this._testAndFire(`attribute:${e}`,t,i)}}_convertReinsert(t,e){const n=Array.from(t.getWalker({shallow:!0}));this._addConsumablesForInsert(e.consumable,n);for(const t of n.map(jl))this._testAndFire("insert",Ml(Nl({},t),{reconversion:!0}),e)}_convertMarkerAdd(t,e,n){if("$graveyard"==e.root.rootName)return;const o=`addMarker:${t}`;if(n.consumable.add(e,o),this.fire(o,{markerName:t,markerRange:e},n),n.consumable.consume(e,o)){this._addConsumablesForRange(n.consumable,e,o);for(const i of e.getItems()){if(!n.consumable.test(i,o))continue;const r={item:i,range:Tl._createOn(i),markerName:t,markerRange:e};this.fire(o,r,n)}}}_convertMarkerRemove(t,e,n){"$graveyard"!=e.root.rootName&&this.fire(`removeMarker:${t}`,{markerName:t,markerRange:e},n)}_reduceChanges(t){const e={changes:t};return this.fire("reduceChanges",e),e.changes}_addConsumablesForInsert(t,e){for(const n of e){const e=n.item;if(null===t.test(e,"insert")){t.add(e,"insert");for(const n of e.getAttributeKeys())t.add(e,"attribute:"+n)}}return t}_addConsumablesForRange(t,e,n){for(const o of e.getItems())t.add(o,n);return t}_addConsumablesForSelection(t,e,n){t.add(e,"selection");for(const o of n)t.add(e,"addMarker:"+o.name);for(const n of e.getAttributeKeys())t.add(e,"attribute:"+n);return t}_testAndFire(t,e,n){const o=function(t,e){const n=e.item.is("element")?e.item.name:"$text";return`${t}:${n}`}(t,e),i=e.item.is("$textProxy")?n.consumable._getSymbolForTextProxy(e.item):e.item,r=this._firedEventsMap.get(n),s=r.get(i);if(s){if(s.has(o))return;s.add(o)}else r.set(i,new Set([o]));this.fire(o,e,n)}_testAndFireAddAttributes(t,e){const n={item:t,range:Tl._createOn(t)};for(const t of n.item.getAttributeKeys())n.attributeKey=t,n.attributeOldValue=null,n.attributeNewValue=n.item.getAttribute(t),this._testAndFire(`attribute:${t}`,n,e)}_createConversionApi(t,e=new Set,n={}){const o=Ml(Nl({},this._conversionApi),{consumable:new Sl,writer:t,options:n,convertItem:t=>this._convertInsert(Tl._createOn(t),o),convertChildren:t=>this._convertInsert(Tl._createIn(t),o,{doNotAddConsumables:!0}),convertAttributes:t=>this._testAndFireAddAttributes(t,o),canReuseView:t=>!e.has(o.mapper.toModelElement(t))});return this._firedEventsMap.set(o,new Map),o}}function Hl(t,e,n){const o=e.getRange(),i=Array.from(t.getAncestors());i.shift(),i.reverse();return!i.some((t=>{if(o.containsItem(t)){return!!n.toViewElement(t).getCustomProperty("addHighlight")}}))}function jl(t){return{item:t.item,range:Tl._createFromPositionAndShift(t.previousPosition,t.length)}}class ql extends(T(gl)){constructor(...t){super(),this._lastRangeBackward=!1,this._attrs=new Map,this._ranges=[],t.length&&this.setTo(...t)}get anchor(){if(this._ranges.length>0){const t=this._ranges[this._ranges.length-1];return this._lastRangeBackward?t.end:t.start}return null}get focus(){if(this._ranges.length>0){const t=this._ranges[this._ranges.length-1];return this._lastRangeBackward?t.start:t.end}return null}get isCollapsed(){return 1===this._ranges.length&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}isEqual(t){if(this.rangeCount!=t.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(t.anchor)||!this.focus.isEqual(t.focus))return!1;for(const e of this._ranges){let n=!1;for(const o of t._ranges)if(e.isEqual(o)){n=!0;break}if(!n)return!1}return!0}*getRanges(){for(const t of this._ranges)yield new Tl(t.start,t.end)}getFirstRange(){let t=null;for(const e of this._ranges)t&&!e.start.isBefore(t.start)||(t=e);return t?new Tl(t.start,t.end):null}getLastRange(){let t=null;for(const e of this._ranges)t&&!e.end.isAfter(t.end)||(t=e);return t?new Tl(t.start,t.end):null}getFirstPosition(){const t=this.getFirstRange();return t?t.start.clone():null}getLastPosition(){const t=this.getLastRange();return t?t.end.clone():null}setTo(...t){let[e,n,o]=t;if("object"==typeof n&&(o=n,n=void 0),null===e)this._setRanges([]);else if(e instanceof ql)this._setRanges(e.getRanges(),e.isBackward);else if(e&&"function"==typeof e.getRanges)this._setRanges(e.getRanges(),e.isBackward);else if(e instanceof Tl)this._setRanges([e],!!o&&!!o.backward);else if(e instanceof Al)this._setRanges([new Tl(e)]);else if(e instanceof ml){const t=!!o&&!!o.backward;let i;if("in"==n)i=Tl._createIn(e);else if("on"==n)i=Tl._createOn(e);else{if(void 0===n)throw new b("model-selection-setto-required-second-parameter",[this,e]);i=new Tl(Al._createAt(e,n))}this._setRanges([i],t)}else{if(!Y(e))throw new b("model-selection-setto-not-selectable",[this,e]);this._setRanges(e,o&&!!o.backward)}}_setRanges(t,e=!1){const n=Array.from(t),o=n.some((e=>{if(!(e instanceof Tl))throw new b("model-selection-set-ranges-not-range",[this,t]);return this._ranges.every((t=>!t.isEqual(e)))}));(n.length!==this._ranges.length||o)&&(this._replaceAllRanges(n),this._lastRangeBackward=!!e,this.fire("change:range",{directChange:!0}))}setFocus(t,e){if(null===this.anchor)throw new b("model-selection-setfocus-no-ranges",[this,t]);const n=Al._createAt(t,e);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.length&&this._popRange(),"before"==n.compareWith(o)?(this._pushRange(new Tl(n,o)),this._lastRangeBackward=!0):(this._pushRange(new Tl(o,n)),this._lastRangeBackward=!1),this.fire("change:range",{directChange:!0})}getAttribute(t){return this._attrs.get(t)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}hasAttribute(t){return this._attrs.has(t)}removeAttribute(t){this.hasAttribute(t)&&(this._attrs.delete(t),this.fire("change:attribute",{attributeKeys:[t],directChange:!0}))}setAttribute(t,e){this.getAttribute(t)!==e&&(this._attrs.set(t,e),this.fire("change:attribute",{attributeKeys:[t],directChange:!0}))}getSelectedElement(){return 1!==this.rangeCount?null:this.getFirstRange().getContainedElement()}*getSelectedBlocks(){const t=new WeakSet;for(const e of this.getRanges()){const n=$l(e.start,t);Kl(n,e)&&(yield n);for(const n of e.getWalker()){const o=n.item;"elementEnd"==n.type&&Ul(o,t,e)&&(yield o)}const o=$l(e.end,t);Zl(o,e)&&(yield o)}}containsEntireContent(t=this.anchor.root){const e=Al._createAt(t,0),n=Al._createAt(t,"end");return e.isTouching(this.getFirstPosition())&&n.isTouching(this.getLastPosition())}_pushRange(t){this._checkRange(t),this._ranges.push(new Tl(t.start,t.end))}_checkRange(t){for(let e=0;e<this._ranges.length;e++)if(t.isIntersecting(this._ranges[e]))throw new b("model-selection-range-intersects",[this,t],{addedRange:t,intersectingRange:this._ranges[e]})}_replaceAllRanges(t){this._removeAllRanges();for(const e of t)this._pushRange(e)}_removeAllRanges(){for(;this._ranges.length>0;)this._popRange()}_popRange(){this._ranges.pop()}}function Wl(t,e){return!e.has(t)&&(e.add(t),t.root.document.model.schema.isBlock(t)&&!!t.parent)}function Ul(t,e,n){return Wl(t,e)&&Gl(t,n)}function $l(t,e){const n=t.parent.root.document.model.schema,o=t.parent.getAncestors({parentFirst:!0,includeSelf:!0});let i=!1;const r=o.find((t=>!i&&(i=n.isLimit(t),!i&&Wl(t,e))));return o.forEach((t=>e.add(t))),r}function Gl(t,e){const n=function(t){const e=t.root.document.model.schema;let n=t.parent;for(;n;){if(e.isBlock(n))return n;n=n.parent}}(t);if(!n)return!0;return!e.containsRange(Tl._createOn(n),!0)}function Kl(t,e){return!!t&&(!(!e.isCollapsed&&!t.isEmpty)||!e.start.isTouching(Al._createAt(t,t.maxOffset))&&Gl(t,e))}function Zl(t,e){return!!t&&(!(!e.isCollapsed&&!t.isEmpty)||!e.end.isTouching(Al._createAt(t,0))&&Gl(t,e))}ql.prototype.is=function(t){return"selection"===t||"model:selection"===t};class Jl extends(T(Tl)){constructor(t,e){super(t,e),Yl.call(this)}detach(){this.stopListening()}toRange(){return new Tl(this.start,this.end)}static fromRange(t){return new Jl(t.start,t.end)}}function Yl(){this.listenTo(this.root.document.model,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&Ql.call(this,n)}),{priority:"low"})}function Ql(t){const e=this.getTransformedByOperation(t),n=Tl._createFromRanges(e),o=!n.isEqual(this),i=function(t,e){switch(e.type){case"insert":return t.containsPosition(e.position);case"move":case"remove":case"reinsert":case"merge":return t.containsPosition(e.sourcePosition)||t.start.isEqual(e.sourcePosition)||t.containsPosition(e.targetPosition);case"split":return t.containsPosition(e.splitPosition)||t.containsPosition(e.insertionPosition)}return!1}(this,t);let r=null;if(o){"$graveyard"==n.root.rootName&&(r="remove"==t.type?t.sourcePosition:t.deletionPosition);const e=this.toRange();this.start=n.start,this.end=n.end,this.fire("change:range",e,{deletionPosition:r})}else i&&this.fire("change:content",this.toRange(),{deletionPosition:r})}Jl.prototype.is=function(t){return"liveRange"===t||"model:liveRange"===t||"range"==t||"model:range"===t};const Xl="selection:";class tc extends(T(gl)){constructor(t){super(),this._selection=new ec(t),this._selection.delegate("change:range").to(this),this._selection.delegate("change:attribute").to(this),this._selection.delegate("change:marker").to(this)}get isCollapsed(){return this._selection.isCollapsed}get anchor(){return this._selection.anchor}get focus(){return this._selection.focus}get rangeCount(){return this._selection.rangeCount}get hasOwnRange(){return this._selection.hasOwnRange}get isBackward(){return this._selection.isBackward}get isGravityOverridden(){return this._selection.isGravityOverridden}get markers(){return this._selection.markers}get _ranges(){return this._selection._ranges}getRanges(){return this._selection.getRanges()}getFirstPosition(){return this._selection.getFirstPosition()}getLastPosition(){return this._selection.getLastPosition()}getFirstRange(){return this._selection.getFirstRange()}getLastRange(){return this._selection.getLastRange()}getSelectedBlocks(){return this._selection.getSelectedBlocks()}getSelectedElement(){return this._selection.getSelectedElement()}containsEntireContent(t){return this._selection.containsEntireContent(t)}destroy(){this._selection.destroy()}getAttributeKeys(){return this._selection.getAttributeKeys()}getAttributes(){return this._selection.getAttributes()}getAttribute(t){return this._selection.getAttribute(t)}hasAttribute(t){return this._selection.hasAttribute(t)}refresh(){this._selection.updateMarkers(),this._selection._updateAttributes(!1)}observeMarkers(t){this._selection.observeMarkers(t)}_setFocus(t,e){this._selection.setFocus(t,e)}_setTo(...t){this._selection.setTo(...t)}_setAttribute(t,e){this._selection.setAttribute(t,e)}_removeAttribute(t){this._selection.removeAttribute(t)}_getStoredAttributes(){return this._selection.getStoredAttributes()}_overrideGravity(){return this._selection.overrideGravity()}_restoreGravity(t){this._selection.restoreGravity(t)}static _getStoreAttributeKey(t){return Xl+t}static _isStoreAttributeKey(t){return t.startsWith(Xl)}}tc.prototype.is=function(t){return"selection"===t||"model:selection"==t||"documentSelection"==t||"model:documentSelection"==t};class ec extends ql{constructor(t){super(),this.markers=new vi({idProperty:"name"}),this._attributePriority=new Map,this._selectionRestorePosition=null,this._hasChangedRange=!1,this._overriddenGravityRegister=new Set,this._observedMarkers=new Set,this._model=t.model,this._document=t,this.listenTo(this._model,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&"marker"!=n.type&&"rename"!=n.type&&"noop"!=n.type&&(0==this._ranges.length&&this._selectionRestorePosition&&this._fixGraveyardSelection(this._selectionRestorePosition),this._selectionRestorePosition=null,this._hasChangedRange&&(this._hasChangedRange=!1,this.fire("change:range",{directChange:!1})))}),{priority:"lowest"}),this.on("change:range",(()=>{this._validateSelectionRanges(this.getRanges())})),this.listenTo(this._model.markers,"update",((t,e,n,o)=>{this._updateMarker(e,o)})),this.listenTo(this._document,"change",((t,e)=>{!function(t,e){const n=t.document.differ;for(const o of n.getChanges()){if("insert"!=o.type)continue;const n=o.position.parent;o.length===n.maxOffset&&t.enqueueChange(e,(t=>{const e=Array.from(n.getAttributeKeys()).filter((t=>t.startsWith(Xl)));for(const o of e)t.removeAttribute(o,n)}))}}(this._model,e)}))}get isCollapsed(){return 0===this._ranges.length?this._document._getDefaultRange().isCollapsed:super.isCollapsed}get anchor(){return super.anchor||this._document._getDefaultRange().start}get focus(){return super.focus||this._document._getDefaultRange().end}get rangeCount(){return this._ranges.length?this._ranges.length:1}get hasOwnRange(){return this._ranges.length>0}get isGravityOverridden(){return!!this._overriddenGravityRegister.size}destroy(){for(let t=0;t<this._ranges.length;t++)this._ranges[t].detach();this.stopListening()}*getRanges(){this._ranges.length?yield*super.getRanges():yield this._document._getDefaultRange()}getFirstRange(){return super.getFirstRange()||this._document._getDefaultRange()}getLastRange(){return super.getLastRange()||this._document._getDefaultRange()}setTo(...t){super.setTo(...t),this._updateAttributes(!0),this.updateMarkers()}setFocus(t,e){super.setFocus(t,e),this._updateAttributes(!0),this.updateMarkers()}setAttribute(t,e){if(this._setAttribute(t,e)){const e=[t];this.fire("change:attribute",{attributeKeys:e,directChange:!0})}}removeAttribute(t){if(this._removeAttribute(t)){const e=[t];this.fire("change:attribute",{attributeKeys:e,directChange:!0})}}overrideGravity(){const t=g();return this._overriddenGravityRegister.add(t),1===this._overriddenGravityRegister.size&&this._updateAttributes(!0),t}restoreGravity(t){if(!this._overriddenGravityRegister.has(t))throw new b("document-selection-gravity-wrong-restore",this,{uid:t});this._overriddenGravityRegister.delete(t),this.isGravityOverridden||this._updateAttributes(!0)}observeMarkers(t){this._observedMarkers.add(t),this.updateMarkers()}_replaceAllRanges(t){this._validateSelectionRanges(t),super._replaceAllRanges(t)}_popRange(){this._ranges.pop().detach()}_pushRange(t){const e=this._prepareRange(t);e&&this._ranges.push(e)}_validateSelectionRanges(t){for(const e of t)if(!this._document._validateSelectionRange(e))throw new b("document-selection-wrong-position",this,{range:e})}_prepareRange(t){if(this._checkRange(t),t.root==this._document.graveyard)return;const e=Jl.fromRange(t);return e.on("change:range",((t,n,o)=>{if(this._hasChangedRange=!0,e.root==this._document.graveyard){this._selectionRestorePosition=o.deletionPosition;const t=this._ranges.indexOf(e);this._ranges.splice(t,1),e.detach()}})),e}updateMarkers(){if(!this._observedMarkers.size)return;const t=[];let e=!1;for(const e of this._model.markers){const n=e.name.split(":",1)[0];if(!this._observedMarkers.has(n))continue;const o=e.getRange();for(const n of this.getRanges())o.containsRange(n,!n.isCollapsed)&&t.push(e)}const n=Array.from(this.markers);for(const n of t)this.markers.has(n)||(this.markers.add(n),e=!0);for(const n of Array.from(this.markers))t.includes(n)||(this.markers.remove(n),e=!0);e&&this.fire("change:marker",{oldMarkers:n,directChange:!1})}_updateMarker(t,e){const n=t.name.split(":",1)[0];if(!this._observedMarkers.has(n))return;let o=!1;const i=Array.from(this.markers),r=this.markers.has(t);if(e){let n=!1;for(const t of this.getRanges())if(e.containsRange(t,!t.isCollapsed)){n=!0;break}n&&!r?(this.markers.add(t),o=!0):!n&&r&&(this.markers.remove(t),o=!0)}else r&&(this.markers.remove(t),o=!0);o&&this.fire("change:marker",{oldMarkers:i,directChange:!1})}_updateAttributes(t){const e=Ti(this._getSurroundingAttributes()),n=Ti(this.getAttributes());if(t)this._attributePriority=new Map,this._attrs=new Map;else for(const[t,e]of this._attributePriority)"low"==e&&(this._attrs.delete(t),this._attributePriority.delete(t));this._setAttributesTo(e);const o=[];for(const[t,e]of this.getAttributes())n.has(t)&&n.get(t)===e||o.push(t);for(const[t]of n)this.hasAttribute(t)||o.push(t);o.length>0&&this.fire("change:attribute",{attributeKeys:o,directChange:!1})}_setAttribute(t,e,n=!0){const o=n?"normal":"low";if("low"==o&&"normal"==this._attributePriority.get(t))return!1;return super.getAttribute(t)!==e&&(this._attrs.set(t,e),this._attributePriority.set(t,o),!0)}_removeAttribute(t,e=!0){const n=e?"normal":"low";return("low"!=n||"normal"!=this._attributePriority.get(t))&&(this._attributePriority.set(t,n),!!super.hasAttribute(t)&&(this._attrs.delete(t),!0))}_setAttributesTo(t){const e=new Set;for(const[e,n]of this.getAttributes())t.get(e)!==n&&this._removeAttribute(e,!1);for(const[n,o]of t){this._setAttribute(n,o,!1)&&e.add(n)}return e}*getStoredAttributes(){const t=this.getFirstPosition().parent;if(this.isCollapsed&&t.isEmpty)for(const e of t.getAttributeKeys())if(e.startsWith(Xl)){const n=e.substr(Xl.length);yield[n,t.getAttribute(e)]}}_getSurroundingAttributes(){const t=this.getFirstPosition(),e=this._model.schema;let n=null;if(this.isCollapsed){const o=t.textNode?t.textNode:t.nodeBefore,i=t.textNode?t.textNode:t.nodeAfter;if(this.isGravityOverridden||(n=nc(o)),n||(n=nc(i)),!this.isGravityOverridden&&!n){let t=o;for(;t&&!e.isInline(t)&&!n;)t=t.previousSibling,n=nc(t)}if(!n){let t=i;for(;t&&!e.isInline(t)&&!n;)t=t.nextSibling,n=nc(t)}n||(n=this.getStoredAttributes())}else{const t=this.getFirstRange();for(const o of t){if(o.item.is("element")&&e.isObject(o.item))break;if("text"==o.type){n=o.item.getAttributes();break}}}return n}_fixGraveyardSelection(t){const e=this._model.schema.getNearestSelectionRange(t);e&&this._pushRange(e)}}function nc(t){return t instanceof bl||t instanceof fl?t.getAttributes():null}class oc{constructor(t){this._dispatchers=t}add(t){for(const e of this._dispatchers)t(e);return this}}const ic=function(t){return ko(t,5)};class rc extends oc{elementToElement(t){return this.add(function(t){const e=lc(t.model),n=cc(t.view,"container");e.attributes.length&&(e.children=!0);return o=>{o.on(`insert:${e.name}`,function(t,e=bc){return(n,o,i)=>{if(!e(o.item,i.consumable,{preflight:!0}))return;const r=t(o.item,i,o);if(!r)return;e(o.item,i.consumable);const s=i.mapper.toViewPosition(o.range.start);i.mapper.bindElements(o.item,r),i.writer.insert(s,r),i.convertAttributes(o.item),pc(r,o.item.getChildren(),i,{reconversion:o.reconversion})}}(n,mc(e)),{priority:t.converterPriority||"normal"}),(e.children||e.attributes.length)&&o.on("reduceChanges",gc(e),{priority:"low"})}}(t))}elementToStructure(t){return this.add(function(t){const e=lc(t.model),n=cc(t.view,"container");return e.children=!0,o=>{if(o._conversionApi.schema.checkChild(e.name,"$text"))throw new b("conversion-element-to-structure-disallowed-text",o,{elementName:e.name});var i,r;o.on(`insert:${e.name}`,(i=n,r=mc(e),(t,e,n)=>{if(!r(e.item,n.consumable,{preflight:!0}))return;const o=new Map;n.writer._registerSlotFactory(function(t,e,n){return(o,i)=>{const r=o.createContainerElement("$slot");let s=null;if("children"===i)s=Array.from(t.getChildren());else{if("function"!=typeof i)throw new b("conversion-slot-mode-unknown",n.dispatcher,{modeOrFilter:i});s=Array.from(t.getChildren()).filter((t=>i(t)))}return e.set(r,s),r}}(e.item,o,n));const s=i(e.item,n,e);if(n.writer._clearSlotFactory(),!s)return;!function(t,e,n){const o=Array.from(e.values()).flat(),i=new Set(o);if(i.size!=o.length)throw new b("conversion-slot-filter-overlap",n.dispatcher,{element:t});if(i.size!=t.childCount)throw new b("conversion-slot-filter-incomplete",n.dispatcher,{element:t})}(e.item,o,n),r(e.item,n.consumable);const a=n.mapper.toViewPosition(e.range.start);n.mapper.bindElements(e.item,s),n.writer.insert(a,s),n.convertAttributes(e.item),function(t,e,n,o){n.mapper.on("modelToViewPosition",s,{priority:"highest"});let i=null,r=null;for([i,r]of e)pc(t,r,n,o),n.writer.move(n.writer.createRangeIn(i),n.writer.createPositionBefore(i)),n.writer.remove(i);function s(t,e){const n=e.modelPosition.nodeAfter,o=r.indexOf(n);o<0||(e.viewPosition=e.mapper.findPositionIn(i,o))}n.mapper.off("modelToViewPosition",s)}(s,o,n,{reconversion:e.reconversion})}),{priority:t.converterPriority||"normal"}),o.on("reduceChanges",gc(e),{priority:"low"})}}(t))}attributeToElement(t){return this.add(function(t){t=ic(t);let e=t.model;"string"==typeof e&&(e={key:e});let n=`attribute:${e.key}`;e.name&&(n+=":"+e.name);if(e.values)for(const n of e.values)t.view[n]=cc(t.view[n],"attribute");else t.view=cc(t.view,"attribute");const o=dc(t);return e=>{e.on(n,function(t){return(e,n,o)=>{if(!o.consumable.test(n.item,e.name))return;const i=t(n.attributeOldValue,o,n),r=t(n.attributeNewValue,o,n);if(!i&&!r)return;o.consumable.consume(n.item,e.name);const s=o.writer,a=s.document.selection;if(n.item instanceof ql||n.item instanceof tc)s.wrap(a.getFirstRange(),r);else{let t=o.mapper.toViewRange(n.range);null!==n.attributeOldValue&&i&&(t=s.unwrap(t,i)),null!==n.attributeNewValue&&r&&s.wrap(t,r)}}}(o),{priority:t.converterPriority||"normal"})}}(t))}attributeToAttribute(t){return this.add(function(t){t=ic(t);let e=t.model;"string"==typeof e&&(e={key:e});let n=`attribute:${e.key}`;e.name&&(n+=":"+e.name);if(e.values)for(const n of e.values)t.view[n]=hc(t.view[n]);else t.view=hc(t.view);const o=dc(t);return e=>{var i;e.on(n,(i=o,(t,e,n)=>{if(!n.consumable.test(e.item,t.name))return;const o=i(e.attributeOldValue,n,e),r=i(e.attributeNewValue,n,e);if(!o&&!r)return;n.consumable.consume(e.item,t.name);const s=n.mapper.toViewElement(e.item),a=n.writer;if(!s)throw new b("conversion-attribute-to-attribute-on-text",n.dispatcher,e);if(null!==e.attributeOldValue&&o)if("class"==o.key){const t=ki(o.value);for(const e of t)a.removeClass(e,s)}else if("style"==o.key){const t=Object.keys(o.value);for(const e of t)a.removeStyle(e,s)}else a.removeAttribute(o.key,s);if(null!==e.attributeNewValue&&r)if("class"==r.key){const t=ki(r.value);for(const e of t)a.addClass(e,s)}else if("style"==r.key){const t=Object.keys(r.value);for(const e of t)a.setStyle(e,r.value[e],s)}else a.setAttribute(r.key,r.value,s)}),{priority:t.converterPriority||"normal"})}}(t))}markerToElement(t){return this.add(function(t){const e=cc(t.view,"ui");return n=>{var o;n.on(`addMarker:${t.model}`,(o=e,(t,e,n)=>{e.isOpening=!0;const i=o(e,n);e.isOpening=!1;const r=o(e,n);if(!i||!r)return;const s=e.markerRange;if(s.isCollapsed&&!n.consumable.consume(s,t.name))return;for(const e of s)if(!n.consumable.consume(e.item,t.name))return;const a=n.mapper,l=n.writer;l.insert(a.toViewPosition(s.start),i),n.mapper.bindElementToMarker(i,e.markerName),s.isCollapsed||(l.insert(a.toViewPosition(s.end),r),n.mapper.bindElementToMarker(r,e.markerName)),t.stop()}),{priority:t.converterPriority||"normal"}),n.on(`removeMarker:${t.model}`,((t,e,n)=>{const o=n.mapper.markerNameToElements(e.markerName);if(o){for(const t of o)n.mapper.unbindElementFromMarkerName(t,e.markerName),n.writer.clear(n.writer.createRangeOn(t),t);n.writer.clearClonedElementsGroup(e.markerName),t.stop()}}),{priority:t.converterPriority||"normal"})}}(t))}markerToHighlight(t){return this.add(function(t){return e=>{var n;e.on(`addMarker:${t.model}`,(n=t.view,(t,e,o)=>{if(!e.item)return;if(!(e.item instanceof ql||e.item instanceof tc||e.item.is("$textProxy")))return;const i=uc(n,e,o);if(!i)return;if(!o.consumable.consume(e.item,t.name))return;const r=o.writer,s=sc(r,i),a=r.document.selection;if(e.item instanceof ql||e.item instanceof tc)r.wrap(a.getFirstRange(),s);else{const t=o.mapper.toViewRange(e.range),n=r.wrap(t,s);for(const t of n.getItems())if(t.is("attributeElement")&&t.isSimilar(s)){o.mapper.bindElementToMarker(t,e.markerName);break}}}),{priority:t.converterPriority||"normal"}),e.on(`addMarker:${t.model}`,function(t){return(e,n,o)=>{if(!n.item)return;if(!(n.item instanceof kl))return;const i=uc(t,n,o);if(!i)return;if(!o.consumable.test(n.item,e.name))return;const r=o.mapper.toViewElement(n.item);if(r&&r.getCustomProperty("addHighlight")){o.consumable.consume(n.item,e.name);for(const t of Tl._createIn(n.item))o.consumable.consume(t.item,e.name);r.getCustomProperty("addHighlight")(r,i,o.writer),o.mapper.bindElementToMarker(r,n.markerName)}}}(t.view),{priority:t.converterPriority||"normal"}),e.on(`removeMarker:${t.model}`,function(t){return(e,n,o)=>{if(n.markerRange.isCollapsed)return;const i=uc(t,n,o);if(!i)return;const r=sc(o.writer,i),s=o.mapper.markerNameToElements(n.markerName);if(s){for(const t of s)if(o.mapper.unbindElementFromMarkerName(t,n.markerName),t.is("attributeElement"))o.writer.unwrap(o.writer.createRangeOn(t),r);else{t.getCustomProperty("removeHighlight")(t,i.id,o.writer)}o.writer.clearClonedElementsGroup(n.markerName),e.stop()}}}(t.view),{priority:t.converterPriority||"normal"})}}(t))}markerToData(t){return this.add(function(t){t=ic(t);const e=t.model;let n=t.view;n||(n=n=>({group:e,name:n.substr(t.model.length+1)}));return o=>{var i;o.on(`addMarker:${e}`,(i=n,(t,e,n)=>{const o=i(e.markerName,n);if(!o)return;const r=e.markerRange;n.consumable.consume(r,t.name)&&(ac(r,!1,n,e,o),ac(r,!0,n,e,o),t.stop())}),{priority:t.converterPriority||"normal"}),o.on(`removeMarker:${e}`,function(t){return(e,n,o)=>{const i=t(n.markerName,o);if(!i)return;const r=o.mapper.markerNameToElements(n.markerName);if(r){for(const t of r)o.mapper.unbindElementFromMarkerName(t,n.markerName),t.is("containerElement")?(s(`data-${i.group}-start-before`,t),s(`data-${i.group}-start-after`,t),s(`data-${i.group}-end-before`,t),s(`data-${i.group}-end-after`,t)):o.writer.clear(o.writer.createRangeOn(t),t);o.writer.clearClonedElementsGroup(n.markerName),e.stop()}function s(t,e){if(e.hasAttribute(t)){const n=new Set(e.getAttribute(t).split(","));n.delete(i.name),0==n.size?o.writer.removeAttribute(t,e):o.writer.setAttribute(t,Array.from(n).join(","),e)}}}}(n),{priority:t.converterPriority||"normal"})}}(t))}}function sc(t,e){const n=t.createAttributeElement("span",e.attributes);return e.classes&&n._addClass(e.classes),"number"==typeof e.priority&&(n._priority=e.priority),n._id=e.id,n}function ac(t,e,n,o,i){const r=e?t.start:t.end,s=r.nodeAfter&&r.nodeAfter.is("element")?r.nodeAfter:null,a=r.nodeBefore&&r.nodeBefore.is("element")?r.nodeBefore:null;if(s||a){let t,r;e&&s||!e&&!a?(t=s,r=!0):(t=a,r=!1);const l=n.mapper.toViewElement(t);if(l)return void function(t,e,n,o,i,r){const s=`data-${r.group}-${e?"start":"end"}-${n?"before":"after"}`,a=t.hasAttribute(s)?t.getAttribute(s).split(","):[];a.unshift(r.name),o.writer.setAttribute(s,a.join(","),t),o.mapper.bindElementToMarker(t,i.markerName)}(l,e,r,n,o,i)}!function(t,e,n,o,i){const r=`${i.group}-${e?"start":"end"}`,s=i.name?{name:i.name}:null,a=n.writer.createUIElement(r,s);n.writer.insert(t,a),n.mapper.bindElementToMarker(a,o.markerName)}(n.mapper.toViewPosition(r),e,n,o,i)}function lc(t){return"string"==typeof t&&(t={name:t}),t.attributes?Array.isArray(t.attributes)||(t.attributes=[t.attributes]):t.attributes=[],t.children=!!t.children,t}function cc(t,e){return"function"==typeof t?t:(n,o)=>function(t,e,n){"string"==typeof t&&(t={name:t});let o;const i=e.writer,r=Object.assign({},t.attributes);if("container"==n)o=i.createContainerElement(t.name,r);else if("attribute"==n){const e={priority:t.priority||Cs.DEFAULT_PRIORITY};o=i.createAttributeElement(t.name,r,e)}else o=i.createUIElement(t.name,r);if(t.styles){const e=Object.keys(t.styles);for(const n of e)i.setStyle(n,t.styles[n],o)}if(t.classes){const e=t.classes;if("string"==typeof e)i.addClass(e,o);else for(const t of e)i.addClass(t,o)}return o}(t,o,e)}function dc(t){return t.model.values?(e,n,o)=>{const i=t.view[e];return i?i(e,n,o):null}:t.view}function hc(t){return"string"==typeof t?e=>({key:t,value:e}):"object"==typeof t?t.value?()=>t:e=>({key:t.key,value:e}):t}function uc(t,e,n){const o="function"==typeof t?t(e,n):t;return o?(o.priority||(o.priority=10),o.id||(o.id=e.markerName),o):null}function gc(t){const e=function(t){return(e,n)=>{if(!e.is("element",t.name))return!1;if("attribute"==n.type){if(t.attributes.includes(n.attributeKey))return!0}else if(t.children)return!0;return!1}}(t);return(t,n)=>{const o=[];n.reconvertedElements||(n.reconvertedElements=new Set);for(const t of n.changes){const i="attribute"==t.type?t.range.start.nodeAfter:t.position.parent;if(i&&e(i,t)){if(!n.reconvertedElements.has(i)){n.reconvertedElements.add(i);const t=Al._createBefore(i);let e=o.length;for(let n=o.length-1;n>=0;n--){const i=o[n],r=("attribute"==i.type?i.range.start:i.position).compareWith(t);if("before"==r||"remove"==i.type&&"same"==r)break;e=n}o.splice(e,0,{type:"remove",name:i.name,position:t,length:1},{type:"reinsert",name:i.name,position:t,length:1})}}else o.push(t)}n.changes=o}}function mc(t){return(e,n,o={})=>{const i=["insert"];for(const n of t.attributes)e.hasAttribute(n)&&i.push(`attribute:${n}`);return!!i.every((t=>n.test(e,t)))&&(o.preflight||i.forEach((t=>n.consume(e,t))),!0)}}function pc(t,e,n,o){for(const i of e)fc(t.root,i,n,o)||n.convertItem(i)}function fc(t,e,n,o){const{writer:i,mapper:r}=n;if(!o.reconversion)return!1;const s=r.toViewElement(e);return!(!s||s.root==t)&&(!!n.canReuseView(s)&&(i.move(i.createRangeOn(s),r.toViewPosition(Al._createBefore(e))),!0))}function bc(t,e,{preflight:n}={}){return n?e.test(t,"insert"):e.consume(t,"insert")}function kc(t){const{schema:e,document:n}=t.model;for(const o of n.getRootNames()){const i=n.getRoot(o);if(i.isEmpty&&!e.checkChild(i,"$text")&&e.checkChild(i,"paragraph"))return t.insertElement("paragraph",i),!0}return!1}function wc(t,e,n){const o=n.createContext(t);return!!n.checkChild(o,"paragraph")&&!!n.checkChild(o.push("paragraph"),e)}function _c(t,e){const n=e.createElement("paragraph");return e.insert(n,t),e.createPositionAt(n,0)}var Ac=Object.defineProperty,Cc=Object.defineProperties,vc=Object.getOwnPropertyDescriptors,yc=Object.getOwnPropertySymbols,xc=Object.prototype.hasOwnProperty,Ec=Object.prototype.propertyIsEnumerable,Tc=(t,e,n)=>e in t?Ac(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;class Dc extends oc{elementToElement(t){return this.add(Sc(t))}elementToAttribute(t){return this.add(function(t){t=ic(t),Pc(t);const e=Rc(t,!1),n=Bc(t.view),o=n?`element:${n}`:"element";return n=>{n.on(o,e,{priority:t.converterPriority||"low"})}}(t))}attributeToAttribute(t){return this.add(function(t){t=ic(t);let e=null;("string"==typeof t.view||t.view.key)&&(e=function(t){"string"==typeof t.view&&(t.view={key:t.view});const e=t.view.key;let n;if("class"==e||"style"==e){n={["class"==e?"classes":"styles"]:t.view.value}}else{n={attributes:{[e]:void 0===t.view.value?/[\s\S]*/:t.view.value}}}t.view.name&&(n.name=t.view.name);return t.view=n,e}(t));Pc(t,e);const n=Rc(t,!0);return e=>{e.on("element",n,{priority:t.converterPriority||"low"})}}(t))}elementToMarker(t){return this.add(function(t){const e=function(t){return(e,n)=>{const o="string"==typeof t?t:t(e,n);return n.writer.createElement("$marker",{"data-name":o})}}(t.model);return Sc((n=((t,e)=>{for(var n in e||(e={}))xc.call(e,n)&&Tc(t,n,e[n]);if(yc)for(var n of yc(e))Ec.call(e,n)&&Tc(t,n,e[n]);return t})({},t),o={model:e},Cc(n,vc(o))));var n,o}(t))}dataToMarker(t){return this.add(function(t){t=ic(t),t.model||(t.model=e=>e?t.view+":"+e:t.view);const e={view:t.view,model:t.model},n=Ic(zc(e,"start")),o=Ic(zc(e,"end"));return i=>{i.on(`element:${t.view}-start`,n,{priority:t.converterPriority||"normal"}),i.on(`element:${t.view}-end`,o,{priority:t.converterPriority||"normal"});const r=m.get("low"),s=m.get("highest"),a=m.get(t.converterPriority)/s;i.on("element",function(t){return(e,n,o)=>{const i=`data-${t.view}`;function r(e,i){for(const r of i){const i=t.model(r,o),s=o.writer.createElement("$marker",{"data-name":i});o.writer.insert(s,e),n.modelCursor.isEqual(e)?n.modelCursor=n.modelCursor.getShiftedBy(1):n.modelCursor=n.modelCursor._getTransformedByInsertion(e,1),n.modelRange=n.modelRange._getTransformedByInsertion(e,1)[0]}}(o.consumable.test(n.viewItem,{attributes:i+"-end-after"})||o.consumable.test(n.viewItem,{attributes:i+"-start-after"})||o.consumable.test(n.viewItem,{attributes:i+"-end-before"})||o.consumable.test(n.viewItem,{attributes:i+"-start-before"}))&&(n.modelRange||Object.assign(n,o.convertChildren(n.viewItem,n.modelCursor)),o.consumable.consume(n.viewItem,{attributes:i+"-end-after"})&&r(n.modelRange.end,n.viewItem.getAttribute(i+"-end-after").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-start-after"})&&r(n.modelRange.end,n.viewItem.getAttribute(i+"-start-after").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-end-before"})&&r(n.modelRange.start,n.viewItem.getAttribute(i+"-end-before").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-start-before"})&&r(n.modelRange.start,n.viewItem.getAttribute(i+"-start-before").split(",")))}}(e),{priority:r+a})}}(t))}}function Sc(t){const e=Ic(t=ic(t)),n=Bc(t.view),o=n?`element:${n}`:"element";return n=>{n.on(o,e,{priority:t.converterPriority||"normal"})}}function Bc(t){return"string"==typeof t?t:"object"==typeof t&&"string"==typeof t.name?t.name:null}function Ic(t){const e=new nr(t.view);return(n,o,i)=>{const r=e.match(o.viewItem);if(!r)return;const s=r.match;if(s.name=!0,!i.consumable.test(o.viewItem,s))return;const a=function(t,e,n){return t instanceof Function?t(e,n):n.writer.createElement(t)}(t.model,o.viewItem,i);a&&i.safeInsert(a,o.modelCursor)&&(i.consumable.consume(o.viewItem,s),i.convertChildren(o.viewItem,a),i.updateConversionResult(a,o))}}function Pc(t,e=null){const n=null===e||(t=>t.getAttribute(e)),o="object"!=typeof t.model?t.model:t.model.key,i="object"!=typeof t.model||void 0===t.model.value?n:t.model.value;t.model={key:o,value:i}}function Rc(t,e){const n=new nr(t.view);return(o,i,r)=>{if(!i.modelRange&&e)return;const s=n.match(i.viewItem);if(!s)return;if(!function(t,e){const n="function"==typeof t?t(e):t;if("object"==typeof n&&!Bc(n))return!1;return!n.classes&&!n.attributes&&!n.styles}(t.view,i.viewItem)?delete s.match.name:s.match.name=!0,!r.consumable.test(i.viewItem,s.match))return;const a=t.model.key,l="function"==typeof t.model.value?t.model.value(i.viewItem,r):t.model.value;if(null===l)return;i.modelRange||Object.assign(i,r.convertChildren(i.viewItem,i.modelCursor));const c=function(t,e,n,o){let i=!1;for(const r of Array.from(t.getItems({shallow:n})))o.schema.checkAttribute(r,e.key)&&(i=!0,r.hasAttribute(e.key)||o.writer.setAttribute(e.key,e.value,r));return i}(i.modelRange,{key:a,value:l},e,r);c&&(r.consumable.test(i.viewItem,{name:!0})&&(s.match.name=!0),r.consumable.consume(i.viewItem,s.match))}}function zc(t,e){return{view:`${t.view}-${e}`,model:(e,n)=>{const o=e.getAttribute("name"),i=t.model(o,n);return n.writer.createElement("$marker",{"data-name":i})}}}function Vc(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.selection,o=e.schema,i=[];let r=!1;for(const t of n.getRanges()){const e=Oc(t,o);e&&!e.isEqual(t)?(i.push(e),r=!0):i.push(t)}r&&t.setSelection(function(t){const e=[...t],n=new Set;let o=1;for(;o<e.length;){const t=e[o],i=e.slice(0,o);for(const[r,s]of i.entries())if(!n.has(r))if(t.isEqual(s))n.add(r);else if(t.isIntersecting(s)){n.add(r),n.add(o);const i=t.getJoined(s);e.push(i)}o++}return e.filter(((t,e)=>!n.has(e)))}(i),{backward:n.isBackward});return!1}(e,t)))}function Oc(t,e){return t.isCollapsed?function(t,e){const n=t.start,o=e.getNearestSelectionRange(n);if(!o){const t=n.getAncestors().reverse().find((t=>e.isObject(t)));return t?Tl._createOn(t):null}if(!o.isCollapsed)return o;const i=o.start;if(n.isEqual(i))return null;return new Tl(i)}(t,e):function(t,e){const{start:n,end:o}=t,i=e.checkChild(n,"$text"),r=e.checkChild(o,"$text"),s=e.getLimitElement(n),a=e.getLimitElement(o);if(s===a){if(i&&r)return null;if(function(t,e,n){const o=t.nodeAfter&&!n.isLimit(t.nodeAfter)||n.checkChild(t,"$text"),i=e.nodeBefore&&!n.isLimit(e.nodeBefore)||n.checkChild(e,"$text");return o||i}(n,o,e)){const t=n.nodeAfter&&e.isSelectable(n.nodeAfter)?null:e.getNearestSelectionRange(n,"forward"),i=o.nodeBefore&&e.isSelectable(o.nodeBefore)?null:e.getNearestSelectionRange(o,"backward"),r=t?t.start:n,s=i?i.end:o;return new Tl(r,s)}}const l=s&&!s.is("rootElement"),c=a&&!a.is("rootElement");if(l||c){const t=n.nodeAfter&&o.nodeBefore&&n.nodeAfter.parent===o.nodeBefore.parent,i=l&&(!t||!Nc(n.nodeAfter,e)),r=c&&(!t||!Nc(o.nodeBefore,e));let d=n,h=o;return i&&(d=Al._createBefore(Fc(s,e))),r&&(h=Al._createAfter(Fc(a,e))),new Tl(d,h)}return null}(t,e)}function Fc(t,e){let n=t,o=n;for(;e.isLimit(o)&&o.parent;)n=o,o=o.parent;return n}function Nc(t,e){return t&&e.isSelectable(t)}class Mc extends(j()){constructor(t,e){super(),this.model=t,this.view=new ul(e),this.mapper=new Dl,this.downcastDispatcher=new Ll({mapper:this.mapper,schema:t.schema});const n=this.model.document,o=n.selection,r=this.model.markers;var s,a,l;this.listenTo(this.model,"_beforeChanges",(()=>{this.view._disableRendering(!0)}),{priority:"highest"}),this.listenTo(this.model,"_afterChanges",(()=>{this.view._disableRendering(!1)}),{priority:"lowest"}),this.listenTo(n,"change",(()=>{this.view.change((t=>{this.downcastDispatcher.convertChanges(n.differ,r,t),this.downcastDispatcher.convertSelection(o,r,t)}))}),{priority:"low"}),this.listenTo(this.view.document,"selectionChange",function(t,e){return(n,o)=>{const i=o.newSelection,r=[];for(const t of i.getRanges())r.push(e.toModelRange(t));const s=t.createSelection(r,{backward:i.isBackward});s.isEqual(t.document.selection)||t.change((t=>{t.setSelection(s)}))}}(this.model,this.mapper)),this.listenTo(this.view.document,"beforeinput",(s=this.mapper,a=this.model.schema,l=this.view,(t,e)=>{if(!l.document.isComposing||i.isAndroid)for(let t=0;t<e.targetRanges.length;t++){const n=e.targetRanges[t],o=s.toModelRange(n),i=Oc(o,a);i&&!i.isEqual(o)&&(e.targetRanges[t]=s.toViewRange(i))}}),{priority:"high"}),this.downcastDispatcher.on("insert:$text",((t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewPosition(e.range.start),r=o.createText(e.item.data);o.insert(i,r)}),{priority:"lowest"}),this.downcastDispatcher.on("insert",((t,e,n)=>{n.convertAttributes(e.item),e.reconversion||!e.item.is("element")||e.item.isEmpty||n.convertChildren(e.item)}),{priority:"lowest"}),this.downcastDispatcher.on("remove",((t,e,n)=>{const o=n.mapper.toViewPosition(e.position),i=e.position.getShiftedBy(e.length),r=n.mapper.toViewPosition(i,{isPhantom:!0}),s=n.writer.createRange(o,r),a=n.writer.remove(s.getTrimmed());for(const t of n.writer.createRangeIn(a).getItems())n.mapper.unbindViewElement(t,{defer:!0})}),{priority:"low"}),this.downcastDispatcher.on("selection",((t,e,n)=>{const o=n.writer,i=o.document.selection;for(const t of i.getRanges())t.isCollapsed&&t.end.parent.isAttached()&&n.writer.mergeAttributes(t.start);o.setSelection(null)}),{priority:"high"}),this.downcastDispatcher.on("selection",((t,e,n)=>{const o=e.selection;if(o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=[];for(const t of o.getRanges())i.push(n.mapper.toViewRange(t));n.writer.setSelection(i,{backward:o.isBackward})}),{priority:"low"}),this.downcastDispatcher.on("selection",((t,e,n)=>{const o=e.selection;if(!o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=n.writer,r=o.getFirstPosition(),s=n.mapper.toViewPosition(r),a=i.breakAttributes(s);i.setSelection(a)}),{priority:"low"}),this.view.document.roots.bindTo(this.model.document.roots).using((t=>{if("$graveyard"==t.rootName)return null;const e=new as(this.view.document,t.name);return e.rootName=t.rootName,this.mapper.bindElements(t,e),e}))}destroy(){this.view.destroy(),this.stopListening()}reconvertMarker(t){const e="string"==typeof t?t:t.name,n=this.model.markers.get(e);if(!n)throw new b("editingcontroller-reconvertmarker-marker-not-exist",this,{markerName:e});this.model.change((()=>{this.model.markers._refresh(n)}))}reconvertItem(t){this.model.change((()=>{this.model.document.differ._refreshItem(t)}))}}class Lc{constructor(){this._consumables=new Map}add(t,e){let n;t.is("$text")||t.is("documentFragment")?this._consumables.set(t,!0):(this._consumables.has(t)?n=this._consumables.get(t):(n=new jc(t),this._consumables.set(t,n)),n.add(e))}test(t,e){const n=this._consumables.get(t);return void 0===n?null:t.is("$text")||t.is("documentFragment")?n:n.test(e)}consume(t,e){return!!this.test(t,e)&&(t.is("$text")||t.is("documentFragment")?this._consumables.set(t,!1):this._consumables.get(t).consume(e),!0)}revert(t,e){const n=this._consumables.get(t);void 0!==n&&(t.is("$text")||t.is("documentFragment")?this._consumables.set(t,!0):n.revert(e))}static consumablesFromElement(t){const e={element:t,name:!0,attributes:[],classes:[],styles:[]},n=t.getAttributeKeys();for(const t of n)"style"!=t&&"class"!=t&&e.attributes.push(t);const o=t.getClassNames();for(const t of o)e.classes.push(t);const i=t.getStyleNames();for(const t of i)e.styles.push(t);return e}static createFrom(t,e){if(e||(e=new Lc),t.is("$text"))return e.add(t),e;t.is("element")&&e.add(t,Lc.consumablesFromElement(t)),t.is("documentFragment")&&e.add(t);for(const n of t.getChildren())e=Lc.createFrom(n,e);return e}}const Hc=["attributes","classes","styles"];class jc{constructor(t){this.element=t,this._canConsumeName=null,this._consumables={attributes:new Map,styles:new Map,classes:new Map}}add(t){t.name&&(this._canConsumeName=!0);for(const e of Hc)e in t&&this._add(e,t[e])}test(t){if(t.name&&!this._canConsumeName)return this._canConsumeName;for(const e of Hc)if(e in t){const n=this._test(e,t[e]);if(!0!==n)return n}return!0}consume(t){t.name&&(this._canConsumeName=!1);for(const e of Hc)e in t&&this._consume(e,t[e])}revert(t){t.name&&(this._canConsumeName=!0);for(const e of Hc)e in t&&this._revert(e,t[e])}_add(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n){if("attributes"===t&&("class"===e||"style"===e))throw new b("viewconsumable-invalid-attribute",this);if(o.set(e,!0),"styles"===t)for(const t of this.element.document.stylesProcessor.getRelatedStyles(e))o.set(t,!0)}}_test(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){const t=o.get(e);if(void 0===t)return null;if(!t)return!1}else{const t="class"==e?"classes":"styles",n=this._test(t,[...this._consumables[t].keys()]);if(!0!==n)return n}return!0}_consume(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){if(o.set(e,!1),"styles"==t)for(const t of this.element.document.stylesProcessor.getRelatedStyles(e))o.set(t,!1)}else{const t="class"==e?"classes":"styles";this._consume(t,[...this._consumables[t].keys()])}}_revert(t,e){const n=ht(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){!1===o.get(e)&&o.set(e,!0)}else{const t="class"==e?"classes":"styles";this._revert(t,[...this._consumables[t].keys()])}}}class qc extends(j()){constructor(){super(),this._sourceDefinitions={},this._attributeProperties={},this.decorate("checkChild"),this.decorate("checkAttribute"),this.on("checkAttribute",((t,e)=>{e[0]=new Wc(e[0])}),{priority:"highest"}),this.on("checkChild",((t,e)=>{e[0]=new Wc(e[0]),e[1]=this.getDefinition(e[1])}),{priority:"highest"})}register(t,e){if(this._sourceDefinitions[t])throw new b("schema-cannot-register-item-twice",this,{itemName:t});this._sourceDefinitions[t]=[Object.assign({},e)],this._clearCache()}extend(t,e){if(!this._sourceDefinitions[t])throw new b("schema-cannot-extend-missing-item",this,{itemName:t});this._sourceDefinitions[t].push(Object.assign({},e)),this._clearCache()}getDefinitions(){return this._compiledDefinitions||this._compile(),this._compiledDefinitions}getDefinition(t){let e;return e="string"==typeof t?t:"is"in t&&(t.is("$text")||t.is("$textProxy"))?"$text":t.name,this.getDefinitions()[e]}isRegistered(t){return!!this.getDefinition(t)}isBlock(t){const e=this.getDefinition(t);return!(!e||!e.isBlock)}isLimit(t){const e=this.getDefinition(t);return!!e&&!(!e.isLimit&&!e.isObject)}isObject(t){const e=this.getDefinition(t);return!!e&&!!(e.isObject||e.isLimit&&e.isSelectable&&e.isContent)}isInline(t){const e=this.getDefinition(t);return!(!e||!e.isInline)}isSelectable(t){const e=this.getDefinition(t);return!!e&&!(!e.isSelectable&&!e.isObject)}isContent(t){const e=this.getDefinition(t);return!!e&&!(!e.isContent&&!e.isObject)}checkChild(t,e){return!!e&&this._checkContextMatch(e,t)}checkAttribute(t,e){const n=this.getDefinition(t.last);return!!n&&n.allowAttributes.includes(e)}checkMerge(t,e){if(t instanceof Al){const e=t.nodeBefore,n=t.nodeAfter;if(!(e instanceof kl))throw new b("schema-check-merge-no-element-before",this);if(!(n instanceof kl))throw new b("schema-check-merge-no-element-after",this);return this.checkMerge(e,n)}for(const n of e.getChildren())if(!this.checkChild(t,n))return!1;return!0}addChildCheck(t){this.on("checkChild",((e,[n,o])=>{if(!o)return;const i=t(n,o);"boolean"==typeof i&&(e.stop(),e.return=i)}),{priority:"high"})}addAttributeCheck(t){this.on("checkAttribute",((e,[n,o])=>{const i=t(n,o);"boolean"==typeof i&&(e.stop(),e.return=i)}),{priority:"high"})}setAttributeProperties(t,e){this._attributeProperties[t]=Object.assign(this.getAttributeProperties(t),e)}getAttributeProperties(t){return this._attributeProperties[t]||{}}getLimitElement(t){let e;if(t instanceof Al)e=t.parent;else{e=(t instanceof Tl?[t]:Array.from(t.getRanges())).reduce(((t,e)=>{const n=e.getCommonAncestor();return t?t.getCommonAncestor(n,{includeSelf:!0}):n}),null)}for(;!this.isLimit(e)&&e.parent;)e=e.parent;return e}checkAttributeInSelection(t,e){if(t.isCollapsed){const n=[...t.getFirstPosition().getAncestors(),new fl("",t.getAttributes())];return this.checkAttribute(n,e)}{const n=t.getRanges();for(const t of n)for(const n of t)if(this.checkAttribute(n.item,e))return!0}return!1}*getValidRanges(t,e){t=function*(t){for(const e of t)yield*e.getMinimalFlatRanges()}(t);for(const n of t)yield*this._getValidRangesForRange(n,e)}getNearestSelectionRange(t,e="both"){if(this.checkChild(t,"$text"))return new Tl(t);let n,o;const i=t.getAncestors().reverse().find((t=>this.isLimit(t)))||t.root;"both"!=e&&"backward"!=e||(n=new wl({boundaries:Tl._createIn(i),startPosition:t,direction:"backward"})),"both"!=e&&"forward"!=e||(o=new wl({boundaries:Tl._createIn(i),startPosition:t}));for(const t of function*(t,e){let n=!1;for(;!n;){if(n=!0,t){const e=t.next();e.done||(n=!1,yield{walker:t,value:e.value})}if(e){const t=e.next();t.done||(n=!1,yield{walker:e,value:t.value})}}}(n,o)){const e=t.walker==n?"elementEnd":"elementStart",o=t.value;if(o.type==e&&this.isObject(o.item))return Tl._createOn(o.item);if(this.checkChild(o.nextPosition,"$text"))return new Tl(o.nextPosition)}return null}findAllowedParent(t,e){let n=t.parent;for(;n;){if(this.checkChild(n,e))return n;if(this.isLimit(n))return null;n=n.parent}return null}setAllowedAttributes(t,e,n){const o=n.model;for(const[i,r]of Object.entries(e))o.schema.checkAttribute(t,i)&&n.setAttribute(i,r,t)}removeDisallowedAttributes(t,e){for(const n of t)if(n.is("$text"))od(this,n,e);else{const t=Tl._createIn(n).getPositions();for(const n of t){od(this,n.nodeBefore||n.parent,e)}}}getAttributesWithProperty(t,e,n){const o={};for(const[i,r]of t.getAttributes()){const t=this.getAttributeProperties(i);void 0!==t[e]&&(void 0!==n&&n!==t[e]||(o[i]=r))}return o}createContext(t){return new Wc(t)}_clearCache(){this._compiledDefinitions=null}_compile(){const t={},e=this._sourceDefinitions,n=Object.keys(e);for(const o of n)t[o]=Uc(e[o],o);for(const e of n)$c(t,e);for(const e of n)Gc(t,e);for(const e of n)Kc(t,e);for(const e of n)Zc(t,e),Jc(t,e);for(const e of n)Yc(t,e),Qc(t,e),Xc(t,e);this._compiledDefinitions=t}_checkContextMatch(t,e,n=e.length-1){const o=e.getItem(n);if(t.allowIn.includes(o.name)){if(0==n)return!0;{const t=this.getDefinition(o);return this._checkContextMatch(t,e,n-1)}}return!1}*_getValidRangesForRange(t,e){let n=t.start,o=t.start;for(const i of t.getItems({shallow:!0}))i.is("element")&&(yield*this._getValidRangesForRange(Tl._createIn(i),e)),this.checkAttribute(i,e)||(n.isEqual(o)||(yield new Tl(n,o)),n=Al._createAfter(i)),o=Al._createAfter(i);n.isEqual(o)||(yield new Tl(n,o))}}class Wc{constructor(t){if(t instanceof Wc)return t;let e;e="string"==typeof t?[t]:Array.isArray(t)?t:t.getAncestors({includeSelf:!0}),this._items=e.map(nd)}get length(){return this._items.length}get last(){return this._items[this._items.length-1]}[Symbol.iterator](){return this._items[Symbol.iterator]()}push(t){const e=new Wc([t]);return e._items=[...this._items,...e._items],e}getItem(t){return this._items[t]}*getNames(){yield*this._items.map((t=>t.name))}endsWith(t){return Array.from(this.getNames()).join(" ").endsWith(t)}startsWith(t){return Array.from(this.getNames()).join(" ").startsWith(t)}}function Uc(t,e){const n={name:e,allowIn:[],allowContentOf:[],allowWhere:[],allowAttributes:[],allowAttributesOf:[],allowChildren:[],inheritTypesFrom:[]};return function(t,e){for(const n of t){const t=Object.keys(n).filter((t=>t.startsWith("is")));for(const o of t)e[o]=!!n[o]}}(t,n),td(t,n,"allowIn"),td(t,n,"allowContentOf"),td(t,n,"allowWhere"),td(t,n,"allowAttributes"),td(t,n,"allowAttributesOf"),td(t,n,"allowChildren"),td(t,n,"inheritTypesFrom"),function(t,e){for(const n of t){const t=n.inheritAllFrom;t&&(e.allowContentOf.push(t),e.allowWhere.push(t),e.allowAttributesOf.push(t),e.inheritTypesFrom.push(t))}}(t,n),n}function $c(t,e){const n=t[e];for(const o of n.allowChildren){const n=t[o];n&&n.allowIn.push(e)}n.allowChildren.length=0}function Gc(t,e){for(const n of t[e].allowContentOf)if(t[n]){ed(t,n).forEach((t=>{t.allowIn.push(e)}))}delete t[e].allowContentOf}function Kc(t,e){for(const n of t[e].allowWhere){const o=t[n];if(o){const n=o.allowIn;t[e].allowIn.push(...n)}}delete t[e].allowWhere}function Zc(t,e){for(const n of t[e].allowAttributesOf){const o=t[n];if(o){const n=o.allowAttributes;t[e].allowAttributes.push(...n)}}delete t[e].allowAttributesOf}function Jc(t,e){const n=t[e];for(const e of n.inheritTypesFrom){const o=t[e];if(o){const t=Object.keys(o).filter((t=>t.startsWith("is")));for(const e of t)e in n||(n[e]=o[e])}}delete n.inheritTypesFrom}function Yc(t,e){const n=t[e],o=n.allowIn.filter((e=>t[e]));n.allowIn=Array.from(new Set(o))}function Qc(t,e){const n=t[e];for(const o of n.allowIn){t[o].allowChildren.push(e)}}function Xc(t,e){const n=t[e];n.allowAttributes=Array.from(new Set(n.allowAttributes))}function td(t,e,n){for(const o of t){const t=o[n];"string"==typeof t?e[n].push(t):Array.isArray(t)&&e[n].push(...t)}}function ed(t,e){const n=t[e];return(o=t,Object.keys(o).map((t=>o[t]))).filter((t=>t.allowIn.includes(n.name)));var o}function nd(t){return"string"==typeof t||t.is("documentFragment")?{name:"string"==typeof t?t:"$documentFragment",*getAttributeKeys(){},getAttribute(){}}:{name:t.is("element")?t.name:"$text",*getAttributeKeys(){yield*t.getAttributeKeys()},getAttribute:e=>t.getAttribute(e)}}function od(t,e,n){for(const o of e.getAttributeKeys())t.checkAttribute(e,o)||n.removeAttribute(o,e)}var id=Object.defineProperty,rd=Object.defineProperties,sd=Object.getOwnPropertyDescriptors,ad=Object.getOwnPropertySymbols,ld=Object.prototype.hasOwnProperty,cd=Object.prototype.propertyIsEnumerable,dd=(t,e,n)=>e in t?id(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;class hd extends(T()){constructor(t){var e;super(),this._splitParts=new Map,this._cursorParents=new Map,this._modelCursor=null,this._emptyElementsToKeep=new Set,this.conversionApi=(e=((t,e)=>{for(var n in e||(e={}))ld.call(e,n)&&dd(t,n,e[n]);if(ad)for(var n of ad(e))cd.call(e,n)&&dd(t,n,e[n]);return t})({},t),rd(e,sd({consumable:null,writer:null,store:null,convertItem:(t,e)=>this._convertItem(t,e),convertChildren:(t,e)=>this._convertChildren(t,e),safeInsert:(t,e)=>this._safeInsert(t,e),updateConversionResult:(t,e)=>this._updateConversionResult(t,e),splitToAllowedParent:(t,e)=>this._splitToAllowedParent(t,e),getSplitParts:t=>this._getSplitParts(t),keepEmptyElement:t=>this._keepEmptyElement(t)})))}convert(t,e,n=["$root"]){this.fire("viewCleanup",t),this._modelCursor=function(t,e){let n;for(const o of new Wc(t)){const t={};for(const e of o.getAttributeKeys())t[e]=o.getAttribute(e);const i=e.createElement(o.name,t);n&&e.insert(i,n),n=Al._createAt(i,0)}return n}(n,e),this.conversionApi.writer=e,this.conversionApi.consumable=Lc.createFrom(t),this.conversionApi.store={};const{modelRange:o}=this._convertItem(t,this._modelCursor),i=e.createDocumentFragment();if(o){this._removeEmptyElements();for(const t of Array.from(this._modelCursor.parent.getChildren()))e.append(t,i);i.markers=function(t,e){const n=new Set,o=new Map,i=Tl._createIn(t).getItems();for(const t of i)t.is("element","$marker")&&n.add(t);for(const t of n){const n=t.getAttribute("data-name"),i=e.createPositionBefore(t);o.has(n)?o.get(n).end=i.clone():o.set(n,new Tl(i.clone())),e.remove(t)}return o}(i,e)}return this._modelCursor=null,this._splitParts.clear(),this._cursorParents.clear(),this._emptyElementsToKeep.clear(),this.conversionApi.writer=null,this.conversionApi.store=null,i}_convertItem(t,e){const n={viewItem:t,modelCursor:e,modelRange:null};if(t.is("element")?this.fire(`element:${t.name}`,n,this.conversionApi):t.is("$text")?this.fire("text",n,this.conversionApi):this.fire("documentFragment",n,this.conversionApi),n.modelRange&&!(n.modelRange instanceof Tl))throw new b("view-conversion-dispatcher-incorrect-result",this);return{modelRange:n.modelRange,modelCursor:n.modelCursor}}_convertChildren(t,e){let n=e.is("position")?e:Al._createAt(e,0);const o=new Tl(n);for(const e of Array.from(t.getChildren())){const t=this._convertItem(e,n);t.modelRange instanceof Tl&&(o.end=t.modelRange.end,n=t.modelCursor)}return{modelRange:o,modelCursor:n}}_safeInsert(t,e){const n=this._splitToAllowedParent(t,e);return!!n&&(this.conversionApi.writer.insert(t,n.position),!0)}_updateConversionResult(t,e){const n=this._getSplitParts(t),o=this.conversionApi.writer;e.modelRange||(e.modelRange=o.createRange(o.createPositionBefore(t),o.createPositionAfter(n[n.length-1])));const i=this._cursorParents.get(t);e.modelCursor=i?o.createPositionAt(i,0):e.modelRange.end}_splitToAllowedParent(t,e){const{schema:n,writer:o}=this.conversionApi;let i=n.findAllowedParent(e,t);if(i){if(i===e.parent)return{position:e};this._modelCursor.parent.getAncestors().includes(i)&&(i=null)}if(!i)return wc(e,t,n)?{position:_c(e,o)}:null;const r=this.conversionApi.writer.split(e,i),s=[];for(const t of r.range.getWalker())if("elementEnd"==t.type)s.push(t.item);else{const e=s.pop(),n=t.item;this._registerSplitPair(e,n)}const a=r.range.end.parent;return this._cursorParents.set(t,a),{position:r.position,cursorParent:a}}_registerSplitPair(t,e){this._splitParts.has(t)||this._splitParts.set(t,[t]);const n=this._splitParts.get(t);this._splitParts.set(e,n),n.push(e)}_getSplitParts(t){let e;return e=this._splitParts.has(t)?this._splitParts.get(t):[t],e}_keepEmptyElement(t){this._emptyElementsToKeep.add(t)}_removeEmptyElements(){let t=!1;for(const e of this._splitParts.keys())e.isEmpty&&!this._emptyElementsToKeep.has(e)&&(this.conversionApi.writer.remove(e),this._splitParts.delete(e),t=!0);t&&this._removeEmptyElements()}}class ud{getHtml(t){const e=document.implementation.createHTMLDocument("").createElement("div");return e.appendChild(t),e.innerHTML}}class gd{constructor(t){this.skipComments=!0,this.domParser=new DOMParser,this.domConverter=new ua(t,{renderingMode:"data"}),this.htmlWriter=new ud}toData(t){const e=this.domConverter.viewToDom(t);return this.htmlWriter.getHtml(e)}toView(t){const e=this._toDom(t);return this.domConverter.domToView(e,{skipComments:this.skipComments})}registerRawContentMatcher(t){this.domConverter.registerRawContentMatcher(t)}useFillerType(t){this.domConverter.blockFillerMode="marked"==t?"markedNbsp":"nbsp"}_toDom(t){t.match(/<(?:html|body|head|meta)(?:\s[^>]*)?>/i)||(t=`<body>${t}</body>`);const e=this.domParser.parseFromString(t,"text/html"),n=e.createDocumentFragment(),o=e.body.childNodes;for(;o.length>0;)n.appendChild(o[0]);return n}}class md extends(T()){constructor(t,e){super(),this.model=t,this.mapper=new Dl,this.downcastDispatcher=new Ll({mapper:this.mapper,schema:t.schema}),this.downcastDispatcher.on("insert:$text",((t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewPosition(e.range.start),r=o.createText(e.item.data);o.insert(i,r)}),{priority:"lowest"}),this.downcastDispatcher.on("insert",((t,e,n)=>{n.convertAttributes(e.item),e.reconversion||!e.item.is("element")||e.item.isEmpty||n.convertChildren(e.item)}),{priority:"lowest"}),this.upcastDispatcher=new hd({schema:t.schema}),this.viewDocument=new As(e),this.stylesProcessor=e,this.htmlProcessor=new gd(this.viewDocument),this.processor=this.htmlProcessor,this._viewWriter=new Rs(this.viewDocument),this.upcastDispatcher.on("text",((t,e,{schema:n,consumable:o,writer:i})=>{let r=e.modelCursor;if(!o.test(e.viewItem))return;if(!n.checkChild(r,"$text")){if(!wc(r,"$text",n))return;if(0==e.viewItem.data.trim().length)return;const t=r.nodeBefore;r=_c(r,i),t&&t.is("element","$marker")&&(i.move(i.createRangeOn(t),r),r=i.createPositionAfter(t))}o.consume(e.viewItem);const s=i.createText(e.viewItem.data);i.insert(s,r),e.modelRange=i.createRange(r,r.getShiftedBy(s.offsetSize)),e.modelCursor=e.modelRange.end}),{priority:"lowest"}),this.upcastDispatcher.on("element",((t,e,n)=>{if(!e.modelRange&&n.consumable.consume(e.viewItem,{name:!0})){const{modelRange:t,modelCursor:o}=n.convertChildren(e.viewItem,e.modelCursor);e.modelRange=t,e.modelCursor=o}}),{priority:"lowest"}),this.upcastDispatcher.on("documentFragment",((t,e,n)=>{if(!e.modelRange&&n.consumable.consume(e.viewItem,{name:!0})){const{modelRange:t,modelCursor:o}=n.convertChildren(e.viewItem,e.modelCursor);e.modelRange=t,e.modelCursor=o}}),{priority:"lowest"}),j().prototype.decorate.call(this,"init"),j().prototype.decorate.call(this,"set"),j().prototype.decorate.call(this,"get"),j().prototype.decorate.call(this,"toView"),j().prototype.decorate.call(this,"toModel"),this.on("init",(()=>{this.fire("ready")}),{priority:"lowest"}),this.on("ready",(()=>{this.model.enqueueChange({isUndoable:!1},kc)}),{priority:"lowest"})}get(t={}){const{rootName:e="main",trim:n="empty"}=t;if(!this._checkIfRootsExists([e]))throw new b("datacontroller-get-non-existent-root",this);const o=this.model.document.getRoot(e);return o.isAttached()||k("datacontroller-get-detached-root",this),"empty"!==n||this.model.hasContent(o,{ignoreWhitespaces:!0})?this.stringify(o,t):""}stringify(t,e={}){const n=this.toView(t,e);return this.processor.toData(n)}toView(t,e={}){const n=this.viewDocument,o=this._viewWriter;this.mapper.clearBindings();const i=Tl._createIn(t),r=new Ps(n);this.mapper.bindElements(t,r);const s=t.is("documentFragment")?t.markers:function(t){const e=[],n=t.root.document;if(!n)return new Map;const o=Tl._createIn(t);for(const t of n.model.markers){const n=t.getRange(),i=n.isCollapsed,r=n.start.isEqual(o.start)||n.end.isEqual(o.end);if(i&&r)e.push([t.name,n]);else{const i=o.getIntersection(n);i&&e.push([t.name,i])}}return e.sort((([t,e],[n,o])=>{if("after"!==e.end.compareWith(o.start))return 1;if("before"!==e.start.compareWith(o.end))return-1;switch(e.start.compareWith(o.start)){case"before":return 1;case"after":return-1;default:switch(e.end.compareWith(o.end)){case"before":return 1;case"after":return-1;default:return n.localeCompare(t)}}})),new Map(e)}(t);return this.downcastDispatcher.convert(i,s,o,e),r}init(t){if(this.model.document.version)throw new b("datacontroller-init-document-not-empty",this);let e={};if("string"==typeof t?e.main=t:e=t,!this._checkIfRootsExists(Object.keys(e)))throw new b("datacontroller-init-non-existent-root",this);return this.model.enqueueChange({isUndoable:!1},(t=>{for(const n of Object.keys(e)){const o=this.model.document.getRoot(n);t.insert(this.parse(e[n],o),o,0)}})),Promise.resolve()}set(t,e={}){let n={};if("string"==typeof t?n.main=t:n=t,!this._checkIfRootsExists(Object.keys(n)))throw new b("datacontroller-set-non-existent-root",this);this.model.enqueueChange(e.batchType||{},(t=>{t.setSelection(null),t.removeSelectionAttribute(this.model.document.selection.getAttributeKeys());for(const e of Object.keys(n)){const o=this.model.document.getRoot(e);t.remove(t.createRangeIn(o)),t.insert(this.parse(n[e],o),o,0)}}))}parse(t,e="$root"){const n=this.processor.toView(t);return this.toModel(n,e)}toModel(t,e="$root"){return this.model.change((n=>this.upcastDispatcher.convert(t,n,e)))}addStyleProcessorRules(t){t(this.stylesProcessor)}registerRawContentMatcher(t){this.processor&&this.processor!==this.htmlProcessor&&this.processor.registerRawContentMatcher(t),this.htmlProcessor.registerRawContentMatcher(t)}destroy(){this.stopListening()}_checkIfRootsExists(t){for(const e of t)if(!this.model.document.getRoot(e))return!1;return!0}}class pd{constructor(t,e){this._helpers=new Map,this._downcast=ki(t),this._createConversionHelpers({name:"downcast",dispatchers:this._downcast,isDowncast:!0}),this._upcast=ki(e),this._createConversionHelpers({name:"upcast",dispatchers:this._upcast,isDowncast:!1})}addAlias(t,e){const n=this._downcast.includes(e);if(!this._upcast.includes(e)&&!n)throw new b("conversion-add-alias-dispatcher-not-registered",this);this._createConversionHelpers({name:t,dispatchers:[e],isDowncast:n})}for(t){if(!this._helpers.has(t))throw new b("conversion-for-unknown-group",this);return this._helpers.get(t)}elementToElement(t){this.for("downcast").elementToElement(t);for(const{model:e,view:n}of fd(t))this.for("upcast").elementToElement({model:e,view:n,converterPriority:t.converterPriority})}attributeToElement(t){this.for("downcast").attributeToElement(t);for(const{model:e,view:n}of fd(t))this.for("upcast").elementToAttribute({view:n,model:e,converterPriority:t.converterPriority})}attributeToAttribute(t){this.for("downcast").attributeToAttribute(t);for(const{model:e,view:n}of fd(t))this.for("upcast").attributeToAttribute({view:n,model:e})}_createConversionHelpers({name:t,dispatchers:e,isDowncast:n}){if(this._helpers.has(t))throw new b("conversion-group-exists",this);const o=n?new rc(e):new Dc(e);this._helpers.set(t,o)}}function*fd(t){if(t.model.values)for(const e of t.model.values){const n={key:t.model.key,value:e},o=t.view[e],i=t.upcastAlso?t.upcastAlso[e]:void 0;yield*bd(n,o,i)}else yield*bd(t.model,t.view,t.upcastAlso)}function*bd(t,e,n){if(yield{model:t,view:e},n)for(const e of ki(n))yield{model:t,view:e}}class kd{constructor(t){this.baseVersion=t,this.isDocumentOperation=null!==this.baseVersion,this.batch=null}_validate(){}toJSON(){const t=Object.assign({},this);return t.__className=this.constructor.className,delete t.batch,delete t.isDocumentOperation,t}static get className(){return"Operation"}static fromJSON(t,e){return new this(t.baseVersion)}}function wd(t,e){const n=Cd(e),o=n.reduce(((t,e)=>t+e.offsetSize),0),i=t.parent;yd(t);const r=t.index;return i._insertChild(r,n),vd(i,r+n.length),vd(i,r),new Tl(t,t.getShiftedBy(o))}function _d(t){if(!t.isFlat)throw new b("operation-utils-remove-range-not-flat",this);const e=t.start.parent;yd(t.start),yd(t.end);const n=e._removeChildren(t.start.index,t.end.index-t.start.index);return vd(e,t.start.index),n}function Ad(t,e){if(!t.isFlat)throw new b("operation-utils-move-range-not-flat",this);const n=_d(t);return wd(e=e._getTransformedByDeletion(t.start,t.end.offset-t.start.offset),n)}function Cd(t){const e=[];!function t(n){if("string"==typeof n)e.push(new fl(n));else if(n instanceof bl)e.push(new fl(n.data,n.getAttributes()));else if(n instanceof ml)e.push(n);else if(Y(n))for(const e of n)t(e)}(t);for(let t=1;t<e.length;t++){const n=e[t],o=e[t-1];n instanceof fl&&o instanceof fl&&xd(n,o)&&(e.splice(t-1,2,new fl(o.data+n.data,o.getAttributes())),t--)}return e}function vd(t,e){const n=t.getChild(e-1),o=t.getChild(e);if(n&&o&&n.is("$text")&&o.is("$text")&&xd(n,o)){const i=new fl(n.data+o.data,n.getAttributes());t._removeChildren(e-1,2),t._insertChild(e-1,i)}}function yd(t){const e=t.textNode,n=t.parent;if(e){const o=t.offset-e.startOffset,i=e.index;n._removeChildren(i,1);const r=new fl(e.data.substr(0,o),e.getAttributes()),s=new fl(e.data.substr(o),e.getAttributes());n._insertChild(i,[r,s])}}function xd(t,e){const n=t.getAttributes(),o=e.getAttributes();for(const t of n){if(t[1]!==e.getAttribute(t[0]))return!1;o.next()}return o.next().done}class Ed extends kd{constructor(t,e,n,o){super(o),this.sourcePosition=t.clone(),this.sourcePosition.stickiness="toNext",this.howMany=e,this.targetPosition=n.clone(),this.targetPosition.stickiness="toNone"}get type(){return"$graveyard"==this.targetPosition.root.rootName?"remove":"$graveyard"==this.sourcePosition.root.rootName?"reinsert":"move"}clone(){return new Ed(this.sourcePosition,this.howMany,this.targetPosition,this.baseVersion)}getMovedRangeStart(){return this.targetPosition._getTransformedByDeletion(this.sourcePosition,this.howMany)}getReversed(){const t=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany);return new Ed(this.getMovedRangeStart(),this.howMany,t,this.baseVersion+1)}_validate(){const t=this.sourcePosition.parent,e=this.targetPosition.parent,n=this.sourcePosition.offset,o=this.targetPosition.offset;if(n+this.howMany>t.maxOffset)throw new b("move-operation-nodes-do-not-exist",this);if(t===e&&n<o&&o<n+this.howMany)throw new b("move-operation-range-into-itself",this);if(this.sourcePosition.root==this.targetPosition.root&&"prefix"==J(this.sourcePosition.getParentPath(),this.targetPosition.getParentPath())){const t=this.sourcePosition.path.length-1;if(this.targetPosition.path[t]>=n&&this.targetPosition.path[t]<n+this.howMany)throw new b("move-operation-node-into-itself",this)}}_execute(){Ad(Tl._createFromPositionAndShift(this.sourcePosition,this.howMany),this.targetPosition)}toJSON(){const t=super.toJSON();return t.sourcePosition=this.sourcePosition.toJSON(),t.targetPosition=this.targetPosition.toJSON(),t}static get className(){return"MoveOperation"}static fromJSON(t,e){const n=Al.fromJSON(t.sourcePosition,e),o=Al.fromJSON(t.targetPosition,e);return new this(n,t.howMany,o,t.baseVersion)}}class Td extends kd{constructor(t,e,n){super(n),this.position=t.clone(),this.position.stickiness="toNone",this.nodes=new pl(Cd(e)),this.shouldReceiveAttributes=!1}get type(){return"insert"}get howMany(){return this.nodes.maxOffset}clone(){const t=new pl([...this.nodes].map((t=>t._clone(!0)))),e=new Td(this.position,t,this.baseVersion);return e.shouldReceiveAttributes=this.shouldReceiveAttributes,e}getReversed(){const t=this.position.root.document.graveyard,e=new Al(t,[0]);return new Ed(this.position,this.nodes.maxOffset,e,this.baseVersion+1)}_validate(){const t=this.position.parent;if(!t||t.maxOffset<this.position.offset)throw new b("insert-operation-position-invalid",this)}_execute(){const t=this.nodes;this.nodes=new pl([...t].map((t=>t._clone(!0)))),wd(this.position,t)}toJSON(){const t=super.toJSON();return t.position=this.position.toJSON(),t.nodes=this.nodes.toJSON(),t}static get className(){return"InsertOperation"}static fromJSON(t,e){const n=[];for(const e of t.nodes)e.name?n.push(kl.fromJSON(e)):n.push(fl.fromJSON(e));const o=new Td(Al.fromJSON(t.position,e),n,t.baseVersion);return o.shouldReceiveAttributes=t.shouldReceiveAttributes,o}}class Dd extends kd{constructor(t,e,n,o,i){super(i),this.splitPosition=t.clone(),this.splitPosition.stickiness="toNext",this.howMany=e,this.insertionPosition=n,this.graveyardPosition=o?o.clone():null,this.graveyardPosition&&(this.graveyardPosition.stickiness="toNext")}get type(){return"split"}get moveTargetPosition(){const t=this.insertionPosition.path.slice();return t.push(0),new Al(this.insertionPosition.root,t)}get movedRange(){const t=this.splitPosition.getShiftedBy(Number.POSITIVE_INFINITY);return new Tl(this.splitPosition,t)}clone(){return new Dd(this.splitPosition,this.howMany,this.insertionPosition,this.graveyardPosition,this.baseVersion)}getReversed(){const t=this.splitPosition.root.document.graveyard,e=new Al(t,[0]);return new Sd(this.moveTargetPosition,this.howMany,this.splitPosition,e,this.baseVersion+1)}_validate(){const t=this.splitPosition.parent,e=this.splitPosition.offset;if(!t||t.maxOffset<e)throw new b("split-operation-position-invalid",this);if(!t.parent)throw new b("split-operation-split-in-root",this);if(this.howMany!=t.maxOffset-this.splitPosition.offset)throw new b("split-operation-how-many-invalid",this);if(this.graveyardPosition&&!this.graveyardPosition.nodeAfter)throw new b("split-operation-graveyard-position-invalid",this)}_execute(){const t=this.splitPosition.parent;if(this.graveyardPosition)Ad(Tl._createFromPositionAndShift(this.graveyardPosition,1),this.insertionPosition);else{const e=t._clone();wd(this.insertionPosition,e)}Ad(new Tl(Al._createAt(t,this.splitPosition.offset),Al._createAt(t,t.maxOffset)),this.moveTargetPosition)}toJSON(){const t=super.toJSON();return t.splitPosition=this.splitPosition.toJSON(),t.insertionPosition=this.insertionPosition.toJSON(),this.graveyardPosition&&(t.graveyardPosition=this.graveyardPosition.toJSON()),t}static get className(){return"SplitOperation"}static getInsertionPosition(t){const e=t.path.slice(0,-1);return e[e.length-1]++,new Al(t.root,e,"toPrevious")}static fromJSON(t,e){const n=Al.fromJSON(t.splitPosition,e),o=Al.fromJSON(t.insertionPosition,e),i=t.graveyardPosition?Al.fromJSON(t.graveyardPosition,e):null;return new this(n,t.howMany,o,i,t.baseVersion)}}class Sd extends kd{constructor(t,e,n,o,i){super(i),this.sourcePosition=t.clone(),this.sourcePosition.stickiness="toPrevious",this.howMany=e,this.targetPosition=n.clone(),this.targetPosition.stickiness="toNext",this.graveyardPosition=o.clone()}get type(){return"merge"}get deletionPosition(){return new Al(this.sourcePosition.root,this.sourcePosition.path.slice(0,-1))}get movedRange(){const t=this.sourcePosition.getShiftedBy(Number.POSITIVE_INFINITY);return new Tl(this.sourcePosition,t)}clone(){return new Sd(this.sourcePosition,this.howMany,this.targetPosition,this.graveyardPosition,this.baseVersion)}getReversed(){const t=this.targetPosition._getTransformedByMergeOperation(this),e=this.sourcePosition.path.slice(0,-1),n=new Al(this.sourcePosition.root,e)._getTransformedByMergeOperation(this);return new Dd(t,this.howMany,n,this.graveyardPosition,this.baseVersion+1)}_validate(){const t=this.sourcePosition.parent,e=this.targetPosition.parent;if(!t.parent)throw new b("merge-operation-source-position-invalid",this);if(!e.parent)throw new b("merge-operation-target-position-invalid",this);if(this.howMany!=t.maxOffset)throw new b("merge-operation-how-many-invalid",this)}_execute(){const t=this.sourcePosition.parent;Ad(Tl._createIn(t),this.targetPosition),Ad(Tl._createOn(t),this.graveyardPosition)}toJSON(){const t=super.toJSON();return t.sourcePosition=t.sourcePosition.toJSON(),t.targetPosition=t.targetPosition.toJSON(),t.graveyardPosition=t.graveyardPosition.toJSON(),t}static get className(){return"MergeOperation"}static fromJSON(t,e){const n=Al.fromJSON(t.sourcePosition,e),o=Al.fromJSON(t.targetPosition,e),i=Al.fromJSON(t.graveyardPosition,e);return new this(n,t.howMany,o,i,t.baseVersion)}}class Bd extends kd{constructor(t,e,n,o,i,r){super(r),this.name=t,this.oldRange=e?e.clone():null,this.newRange=n?n.clone():null,this.affectsData=i,this._markers=o}get type(){return"marker"}clone(){return new Bd(this.name,this.oldRange,this.newRange,this._markers,this.affectsData,this.baseVersion)}getReversed(){return new Bd(this.name,this.newRange,this.oldRange,this._markers,this.affectsData,this.baseVersion+1)}_execute(){this.newRange?this._markers._set(this.name,this.newRange,!0,this.affectsData):this._markers._remove(this.name)}toJSON(){const t=super.toJSON();return this.oldRange&&(t.oldRange=this.oldRange.toJSON()),this.newRange&&(t.newRange=this.newRange.toJSON()),delete t._markers,t}static get className(){return"MarkerOperation"}static fromJSON(t,e){return new Bd(t.name,t.oldRange?Tl.fromJSON(t.oldRange,e):null,t.newRange?Tl.fromJSON(t.newRange,e):null,e.model.markers,t.affectsData,t.baseVersion)}}const Id=function(t,e){return tl(t,e)};class Pd extends kd{constructor(t,e,n,o,i){super(i),this.range=t.clone(),this.key=e,this.oldValue=void 0===n?null:n,this.newValue=void 0===o?null:o}get type(){return null===this.oldValue?"addAttribute":null===this.newValue?"removeAttribute":"changeAttribute"}clone(){return new Pd(this.range,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Pd(this.range,this.key,this.newValue,this.oldValue,this.baseVersion+1)}toJSON(){const t=super.toJSON();return t.range=this.range.toJSON(),t}_validate(){if(!this.range.isFlat)throw new b("attribute-operation-range-not-flat",this);for(const t of this.range.getItems({shallow:!0})){if(null!==this.oldValue&&!Id(t.getAttribute(this.key),this.oldValue))throw new b("attribute-operation-wrong-old-value",this,{item:t,key:this.key,value:this.oldValue});if(null===this.oldValue&&null!==this.newValue&&t.hasAttribute(this.key))throw new b("attribute-operation-attribute-exists",this,{node:t,key:this.key})}}_execute(){Id(this.oldValue,this.newValue)||function(t,e,n){yd(t.start),yd(t.end);for(const o of t.getItems({shallow:!0})){const t=o.is("$textProxy")?o.textNode:o;null!==n?t._setAttribute(e,n):t._removeAttribute(e),vd(t.parent,t.index)}vd(t.end.parent,t.end.index)}(this.range,this.key,this.newValue)}static get className(){return"AttributeOperation"}static fromJSON(t,e){return new Pd(Tl.fromJSON(t.range,e),t.key,t.oldValue,t.newValue,t.baseVersion)}}class Rd extends kd{get type(){return"noop"}clone(){return new Rd(this.baseVersion)}getReversed(){return new Rd(this.baseVersion+1)}_execute(){}static get className(){return"NoOperation"}}class zd extends kd{constructor(t,e,n,o){super(o),this.position=t,this.position.stickiness="toNext",this.oldName=e,this.newName=n}get type(){return"rename"}clone(){return new zd(this.position.clone(),this.oldName,this.newName,this.baseVersion)}getReversed(){return new zd(this.position.clone(),this.newName,this.oldName,this.baseVersion+1)}_validate(){const t=this.position.nodeAfter;if(!(t instanceof kl))throw new b("rename-operation-wrong-position",this);if(t.name!==this.oldName)throw new b("rename-operation-wrong-name",this)}_execute(){this.position.nodeAfter.name=this.newName}toJSON(){const t=super.toJSON();return t.position=this.position.toJSON(),t}static get className(){return"RenameOperation"}static fromJSON(t,e){return new zd(Al.fromJSON(t.position,e),t.oldName,t.newName,t.baseVersion)}}class Vd extends kd{constructor(t,e,n,o,i){super(i),this.root=t,this.key=e,this.oldValue=void 0===n?null:n,this.newValue=void 0===o?null:o}get type(){return null===this.oldValue?"addRootAttribute":null===this.newValue?"removeRootAttribute":"changeRootAttribute"}clone(){return new Vd(this.root,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Vd(this.root,this.key,this.newValue,this.oldValue,this.baseVersion+1)}_validate(){if(this.root!=this.root.root||this.root.is("documentFragment"))throw new b("rootattribute-operation-not-a-root",this,{root:this.root,key:this.key});if(null!==this.oldValue&&this.root.getAttribute(this.key)!==this.oldValue)throw new b("rootattribute-operation-wrong-old-value",this,{root:this.root,key:this.key});if(null===this.oldValue&&null!==this.newValue&&this.root.hasAttribute(this.key))throw new b("rootattribute-operation-attribute-exists",this,{root:this.root,key:this.key})}_execute(){null!==this.newValue?this.root._setAttribute(this.key,this.newValue):this.root._removeAttribute(this.key)}toJSON(){const t=super.toJSON();return t.root=this.root.toJSON(),t}static get className(){return"RootAttributeOperation"}static fromJSON(t,e){if(!e.getRoot(t.root))throw new b("rootattribute-operation-fromjson-no-root",this,{rootName:t.root});return new Vd(e.getRoot(t.root),t.key,t.oldValue,t.newValue,t.baseVersion)}}class Od extends kd{constructor(t,e,n,o,i){if(super(i),this.rootName=t,this.elementName=e,this.isAdd=n,this._document=o,!this._document.getRoot(this.rootName)){this._document.createRoot(this.elementName,this.rootName)._isAttached=!1}}get type(){return this.isAdd?"addRoot":"detachRoot"}clone(){return new Od(this.rootName,this.elementName,this.isAdd,this._document,this.baseVersion)}getReversed(){return new Od(this.rootName,this.elementName,!this.isAdd,this._document,this.baseVersion+1)}_validate(){const t=this._document.getRoot(this.rootName);if(t.isAttached()&&this.isAdd)throw new b("root-operation-root-attached",this);if(!t.isAttached()&&!this.isAdd)throw new b("root-operation-root-detached",this)}_execute(){this._document.getRoot(this.rootName)._isAttached=this.isAdd}toJSON(){const t=super.toJSON();return delete t._document,t}static get className(){return"RootOperation"}static fromJSON(t,e){return new Od(t.rootName,t.elementName,t.isAdd,e,t.baseVersion)}}const Fd={};Fd[Pd.className]=Pd,Fd[Td.className]=Td,Fd[Bd.className]=Bd,Fd[Ed.className]=Ed,Fd[Rd.className]=Rd,Fd[kd.className]=kd,Fd[zd.className]=zd,Fd[Vd.className]=Vd,Fd[Od.className]=Od,Fd[Dd.className]=Dd,Fd[Sd.className]=Sd;class Nd{static fromJSON(t,e){return Fd[t.__className].fromJSON(t,e)}}const Md=new Map;function Ld(t,e,n){let o=Md.get(t);o||(o=new Map,Md.set(t,o)),o.set(e,n)}function Hd(t){return[t]}function jd(t,e,n={}){const o=function(t,e){const n=Md.get(t);return n&&n.has(e)?n.get(e):Hd}(t.constructor,e.constructor);try{return o(t=t.clone(),e,n)}catch(t){throw t}}function qd(t,e,n){t=t.slice(),e=e.slice();const o=new Wd(n.document,n.useRelations,n.forceWeakRemove);o.setOriginalOperations(t),o.setOriginalOperations(e);const i=o.originalOperations;if(0==t.length||0==e.length)return{operationsA:t,operationsB:e,originalOperations:i};const r=new WeakMap;for(const e of t)r.set(e,0);const s={nextBaseVersionA:t[t.length-1].baseVersion+1,nextBaseVersionB:e[e.length-1].baseVersion+1,originalOperationsACount:t.length,originalOperationsBCount:e.length};let a=0;for(;a<t.length;){const n=t[a],i=r.get(n);if(i==e.length){a++;continue}const s=e[i],l=jd(n,s,o.getContext(n,s,!0)),c=jd(s,n,o.getContext(s,n,!1));o.updateRelation(n,s),o.setOriginalOperations(l,n),o.setOriginalOperations(c,s);for(const t of l)r.set(t,i+c.length);t.splice(a,1,...l),e.splice(i,1,...c)}if(n.padWithNoOps){const n=t.length-s.originalOperationsACount,o=e.length-s.originalOperationsBCount;$d(t,o-n),$d(e,n-o)}return Ud(t,s.nextBaseVersionB),Ud(e,s.nextBaseVersionA),{operationsA:t,operationsB:e,originalOperations:i}}class Wd{constructor(t,e,n=!1){this.originalOperations=new Map,this._history=t.history,this._useRelations=e,this._forceWeakRemove=!!n,this._relations=new Map}setOriginalOperations(t,e=null){const n=e?this.originalOperations.get(e):null;for(const e of t)this.originalOperations.set(e,n||e)}updateRelation(t,e){if(t instanceof Ed)e instanceof Sd?t.targetPosition.isEqual(e.sourcePosition)||e.movedRange.containsPosition(t.targetPosition)?this._setRelation(t,e,"insertAtSource"):t.targetPosition.isEqual(e.deletionPosition)?this._setRelation(t,e,"insertBetween"):t.targetPosition.isAfter(e.sourcePosition)&&this._setRelation(t,e,"moveTargetAfter"):e instanceof Ed&&(t.targetPosition.isEqual(e.sourcePosition)||t.targetPosition.isBefore(e.sourcePosition)?this._setRelation(t,e,"insertBefore"):this._setRelation(t,e,"insertAfter"));else if(t instanceof Dd){if(e instanceof Sd)t.splitPosition.isBefore(e.sourcePosition)&&this._setRelation(t,e,"splitBefore");else if(e instanceof Ed)if(t.splitPosition.isEqual(e.sourcePosition)||t.splitPosition.isBefore(e.sourcePosition))this._setRelation(t,e,"splitBefore");else{const n=Tl._createFromPositionAndShift(e.sourcePosition,e.howMany);if(t.splitPosition.hasSameParentAs(e.sourcePosition)&&n.containsPosition(t.splitPosition)){const o=n.end.offset-t.splitPosition.offset,i=t.splitPosition.offset-n.start.offset;this._setRelation(t,e,{howMany:o,offset:i})}}}else if(t instanceof Sd)e instanceof Sd?(t.targetPosition.isEqual(e.sourcePosition)||this._setRelation(t,e,"mergeTargetNotMoved"),t.sourcePosition.isEqual(e.targetPosition)&&this._setRelation(t,e,"mergeSourceNotMoved"),t.sourcePosition.isEqual(e.sourcePosition)&&this._setRelation(t,e,"mergeSameElement")):e instanceof Dd&&t.sourcePosition.isEqual(e.splitPosition)&&this._setRelation(t,e,"splitAtSource");else if(t instanceof Bd){const n=t.newRange;if(!n)return;if(e instanceof Ed){const o=Tl._createFromPositionAndShift(e.sourcePosition,e.howMany),i=o.containsPosition(n.start)||o.start.isEqual(n.start),r=o.containsPosition(n.end)||o.end.isEqual(n.end);!i&&!r||o.containsRange(n)||this._setRelation(t,e,{side:i?"left":"right",path:i?n.start.path.slice():n.end.path.slice()})}else if(e instanceof Sd){const o=n.start.isEqual(e.targetPosition),i=n.start.isEqual(e.deletionPosition),r=n.end.isEqual(e.deletionPosition),s=n.end.isEqual(e.sourcePosition);(o||i||r||s)&&this._setRelation(t,e,{wasInLeftElement:o,wasStartBeforeMergedElement:i,wasEndBeforeMergedElement:r,wasInRightElement:s})}}}getContext(t,e,n){return{aIsStrong:n,aWasUndone:this._wasUndone(t),bWasUndone:this._wasUndone(e),abRelation:this._useRelations?this._getRelation(t,e):null,baRelation:this._useRelations?this._getRelation(e,t):null,forceWeakRemove:this._forceWeakRemove}}_wasUndone(t){const e=this.originalOperations.get(t);return e.wasUndone||this._history.isUndoneOperation(e)}_getRelation(t,e){const n=this.originalOperations.get(e),o=this._history.getUndoneOperation(n);if(!o)return null;const i=this.originalOperations.get(t),r=this._relations.get(i);return r&&r.get(o)||null}_setRelation(t,e,n){const o=this.originalOperations.get(t),i=this.originalOperations.get(e);let r=this._relations.get(o);r||(r=new Map,this._relations.set(o,r)),r.set(i,n)}}function Ud(t,e){for(const n of t)n.baseVersion=e++}function $d(t,e){for(let n=0;n<e;n++)t.push(new Rd(0))}function Gd(t,e,n){const o=t.nodes.getNode(0).getAttribute(e);if(o==n)return null;const i=new Tl(t.position,t.position.getShiftedBy(t.howMany));return new Pd(i,e,o,n,0)}function Kd(t,e){return null===t.targetPosition._getTransformedByDeletion(e.sourcePosition,e.howMany)}function Zd(t,e){const n=[];for(let o=0;o<t.length;o++){const i=t[o],r=new Ed(i.start,i.end.offset-i.start.offset,e,0);n.push(r);for(let e=o+1;e<t.length;e++)t[e]=t[e]._getTransformedByMove(r.sourcePosition,r.targetPosition,r.howMany)[0];e=e._getTransformedByMove(r.sourcePosition,r.targetPosition,r.howMany)}return n}Ld(Pd,Pd,((t,e,n)=>{if(t.key===e.key&&t.range.start.hasSameParentAs(e.range.start)){const o=t.range.getDifference(e.range).map((e=>new Pd(e,t.key,t.oldValue,t.newValue,0))),i=t.range.getIntersection(e.range);return i&&n.aIsStrong&&o.push(new Pd(i,e.key,e.newValue,t.newValue,0)),0==o.length?[new Rd(0)]:o}return[t]})),Ld(Pd,Td,((t,e)=>{if(t.range.start.hasSameParentAs(e.position)&&t.range.containsPosition(e.position)){const n=t.range._getTransformedByInsertion(e.position,e.howMany,!e.shouldReceiveAttributes).map((e=>new Pd(e,t.key,t.oldValue,t.newValue,t.baseVersion)));if(e.shouldReceiveAttributes){const o=Gd(e,t.key,t.oldValue);o&&n.unshift(o)}return n}return t.range=t.range._getTransformedByInsertion(e.position,e.howMany,!1)[0],[t]})),Ld(Pd,Sd,((t,e)=>{const n=[];t.range.start.hasSameParentAs(e.deletionPosition)&&(t.range.containsPosition(e.deletionPosition)||t.range.start.isEqual(e.deletionPosition))&&n.push(Tl._createFromPositionAndShift(e.graveyardPosition,1));const o=t.range._getTransformedByMergeOperation(e);return o.isCollapsed||n.push(o),n.map((e=>new Pd(e,t.key,t.oldValue,t.newValue,t.baseVersion)))})),Ld(Pd,Ed,((t,e)=>{const n=function(t,e){const n=Tl._createFromPositionAndShift(e.sourcePosition,e.howMany);let o=null,i=[];n.containsRange(t,!0)?o=t:t.start.hasSameParentAs(n.start)?(i=t.getDifference(n),o=t.getIntersection(n)):i=[t];const r=[];for(let t of i){t=t._getTransformedByDeletion(e.sourcePosition,e.howMany);const n=e.getMovedRangeStart(),o=t.start.hasSameParentAs(n),i=t._getTransformedByInsertion(n,e.howMany,o);r.push(...i)}o&&r.push(o._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,!1)[0]);return r}(t.range,e);return n.map((e=>new Pd(e,t.key,t.oldValue,t.newValue,t.baseVersion)))})),Ld(Pd,Dd,((t,e)=>{if(t.range.end.isEqual(e.insertionPosition))return e.graveyardPosition||t.range.end.offset++,[t];if(t.range.start.hasSameParentAs(e.splitPosition)&&t.range.containsPosition(e.splitPosition)){const n=t.clone();return n.range=new Tl(e.moveTargetPosition.clone(),t.range.end._getCombined(e.splitPosition,e.moveTargetPosition)),t.range.end=e.splitPosition.clone(),t.range.end.stickiness="toPrevious",[t,n]}return t.range=t.range._getTransformedBySplitOperation(e),[t]})),Ld(Td,Pd,((t,e)=>{const n=[t];if(t.shouldReceiveAttributes&&t.position.hasSameParentAs(e.range.start)&&e.range.containsPosition(t.position)){const o=Gd(t,e.key,e.newValue);o&&n.push(o)}return n})),Ld(Td,Td,((t,e,n)=>(t.position.isEqual(e.position)&&n.aIsStrong||(t.position=t.position._getTransformedByInsertOperation(e)),[t]))),Ld(Td,Ed,((t,e)=>(t.position=t.position._getTransformedByMoveOperation(e),[t]))),Ld(Td,Dd,((t,e)=>(t.position=t.position._getTransformedBySplitOperation(e),[t]))),Ld(Td,Sd,((t,e)=>(t.position=t.position._getTransformedByMergeOperation(e),[t]))),Ld(Bd,Td,((t,e)=>(t.oldRange&&(t.oldRange=t.oldRange._getTransformedByInsertOperation(e)[0]),t.newRange&&(t.newRange=t.newRange._getTransformedByInsertOperation(e)[0]),[t]))),Ld(Bd,Bd,((t,e,n)=>{if(t.name==e.name){if(!n.aIsStrong)return[new Rd(0)];t.oldRange=e.newRange?e.newRange.clone():null}return[t]})),Ld(Bd,Sd,((t,e)=>(t.oldRange&&(t.oldRange=t.oldRange._getTransformedByMergeOperation(e)),t.newRange&&(t.newRange=t.newRange._getTransformedByMergeOperation(e)),[t]))),Ld(Bd,Ed,((t,e,n)=>{if(t.oldRange&&(t.oldRange=Tl._createFromRanges(t.oldRange._getTransformedByMoveOperation(e))),t.newRange){if(n.abRelation){const o=Tl._createFromRanges(t.newRange._getTransformedByMoveOperation(e));if("left"==n.abRelation.side&&e.targetPosition.isEqual(t.newRange.start))return t.newRange.end=o.end,t.newRange.start.path=n.abRelation.path,[t];if("right"==n.abRelation.side&&e.targetPosition.isEqual(t.newRange.end))return t.newRange.start=o.start,t.newRange.end.path=n.abRelation.path,[t]}t.newRange=Tl._createFromRanges(t.newRange._getTransformedByMoveOperation(e))}return[t]})),Ld(Bd,Dd,((t,e,n)=>{if(t.oldRange&&(t.oldRange=t.oldRange._getTransformedBySplitOperation(e)),t.newRange){if(n.abRelation){const o=t.newRange._getTransformedBySplitOperation(e);return t.newRange.start.isEqual(e.splitPosition)&&n.abRelation.wasStartBeforeMergedElement?t.newRange.start=Al._createAt(e.insertionPosition):t.newRange.start.isEqual(e.splitPosition)&&!n.abRelation.wasInLeftElement&&(t.newRange.start=Al._createAt(e.moveTargetPosition)),t.newRange.end.isEqual(e.splitPosition)&&n.abRelation.wasInRightElement?t.newRange.end=Al._createAt(e.moveTargetPosition):t.newRange.end.isEqual(e.splitPosition)&&n.abRelation.wasEndBeforeMergedElement?t.newRange.end=Al._createAt(e.insertionPosition):t.newRange.end=o.end,[t]}t.newRange=t.newRange._getTransformedBySplitOperation(e)}return[t]})),Ld(Sd,Td,((t,e)=>(t.sourcePosition.hasSameParentAs(e.position)&&(t.howMany+=e.howMany),t.sourcePosition=t.sourcePosition._getTransformedByInsertOperation(e),t.targetPosition=t.targetPosition._getTransformedByInsertOperation(e),[t]))),Ld(Sd,Sd,((t,e,n)=>{if(t.sourcePosition.isEqual(e.sourcePosition)&&t.targetPosition.isEqual(e.targetPosition)){if(n.bWasUndone){const n=e.graveyardPosition.path.slice();return n.push(0),t.sourcePosition=new Al(e.graveyardPosition.root,n),t.howMany=0,[t]}return[new Rd(0)]}if(t.sourcePosition.isEqual(e.sourcePosition)&&!t.targetPosition.isEqual(e.targetPosition)&&!n.bWasUndone&&"splitAtSource"!=n.abRelation){const o="$graveyard"==t.targetPosition.root.rootName,i="$graveyard"==e.targetPosition.root.rootName;if(i&&!o||!(o&&!i)&&n.aIsStrong){const n=e.targetPosition._getTransformedByMergeOperation(e),o=t.targetPosition._getTransformedByMergeOperation(e);return[new Ed(n,t.howMany,o,0)]}return[new Rd(0)]}return t.sourcePosition.hasSameParentAs(e.targetPosition)&&(t.howMany+=e.howMany),t.sourcePosition=t.sourcePosition._getTransformedByMergeOperation(e),t.targetPosition=t.targetPosition._getTransformedByMergeOperation(e),t.graveyardPosition.isEqual(e.graveyardPosition)&&n.aIsStrong||(t.graveyardPosition=t.graveyardPosition._getTransformedByMergeOperation(e)),[t]})),Ld(Sd,Ed,((t,e,n)=>{const o=Tl._createFromPositionAndShift(e.sourcePosition,e.howMany);return"remove"==e.type&&!n.bWasUndone&&!n.forceWeakRemove&&t.deletionPosition.hasSameParentAs(e.sourcePosition)&&o.containsPosition(t.sourcePosition)?[new Rd(0)]:(t.sourcePosition.hasSameParentAs(e.targetPosition)&&(t.howMany+=e.howMany),t.sourcePosition.hasSameParentAs(e.sourcePosition)&&(t.howMany-=e.howMany),t.sourcePosition=t.sourcePosition._getTransformedByMoveOperation(e),t.targetPosition=t.targetPosition._getTransformedByMoveOperation(e),t.graveyardPosition.isEqual(e.targetPosition)||(t.graveyardPosition=t.graveyardPosition._getTransformedByMoveOperation(e)),[t])})),Ld(Sd,Dd,((t,e,n)=>{if(e.graveyardPosition&&(t.graveyardPosition=t.graveyardPosition._getTransformedByDeletion(e.graveyardPosition,1),t.deletionPosition.isEqual(e.graveyardPosition)&&(t.howMany=e.howMany)),t.targetPosition.isEqual(e.splitPosition)){const o=0!=e.howMany,i=e.graveyardPosition&&t.deletionPosition.isEqual(e.graveyardPosition);if(o||i||"mergeTargetNotMoved"==n.abRelation)return t.sourcePosition=t.sourcePosition._getTransformedBySplitOperation(e),[t]}if(t.sourcePosition.isEqual(e.splitPosition)){if("mergeSourceNotMoved"==n.abRelation)return t.howMany=0,t.targetPosition=t.targetPosition._getTransformedBySplitOperation(e),[t];if("mergeSameElement"==n.abRelation||t.sourcePosition.offset>0)return t.sourcePosition=e.moveTargetPosition.clone(),t.targetPosition=t.targetPosition._getTransformedBySplitOperation(e),[t]}return t.sourcePosition.hasSameParentAs(e.splitPosition)&&(t.howMany=e.splitPosition.offset),t.sourcePosition=t.sourcePosition._getTransformedBySplitOperation(e),t.targetPosition=t.targetPosition._getTransformedBySplitOperation(e),[t]})),Ld(Ed,Td,((t,e)=>{const n=Tl._createFromPositionAndShift(t.sourcePosition,t.howMany)._getTransformedByInsertOperation(e,!1)[0];return t.sourcePosition=n.start,t.howMany=n.end.offset-n.start.offset,t.targetPosition.isEqual(e.position)||(t.targetPosition=t.targetPosition._getTransformedByInsertOperation(e)),[t]})),Ld(Ed,Ed,((t,e,n)=>{const o=Tl._createFromPositionAndShift(t.sourcePosition,t.howMany),i=Tl._createFromPositionAndShift(e.sourcePosition,e.howMany);let r,s=n.aIsStrong,a=!n.aIsStrong;if("insertBefore"==n.abRelation||"insertAfter"==n.baRelation?a=!0:"insertAfter"!=n.abRelation&&"insertBefore"!=n.baRelation||(a=!1),r=t.targetPosition.isEqual(e.targetPosition)&&a?t.targetPosition._getTransformedByDeletion(e.sourcePosition,e.howMany):t.targetPosition._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),Kd(t,e)&&Kd(e,t))return[e.getReversed()];if(o.containsPosition(e.targetPosition)&&o.containsRange(i,!0))return o.start=o.start._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),o.end=o.end._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),Zd([o],r);if(i.containsPosition(t.targetPosition)&&i.containsRange(o,!0))return o.start=o.start._getCombined(e.sourcePosition,e.getMovedRangeStart()),o.end=o.end._getCombined(e.sourcePosition,e.getMovedRangeStart()),Zd([o],r);const l=J(t.sourcePosition.getParentPath(),e.sourcePosition.getParentPath());if("prefix"==l||"extension"==l)return o.start=o.start._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),o.end=o.end._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany),Zd([o],r);"remove"!=t.type||"remove"==e.type||n.aWasUndone||n.forceWeakRemove?"remove"==t.type||"remove"!=e.type||n.bWasUndone||n.forceWeakRemove||(s=!1):s=!0;const c=[],d=o.getDifference(i);for(const t of d){t.start=t.start._getTransformedByDeletion(e.sourcePosition,e.howMany),t.end=t.end._getTransformedByDeletion(e.sourcePosition,e.howMany);const n="same"==J(t.start.getParentPath(),e.getMovedRangeStart().getParentPath()),o=t._getTransformedByInsertion(e.getMovedRangeStart(),e.howMany,n);c.push(...o)}const h=o.getIntersection(i);return null!==h&&s&&(h.start=h.start._getCombined(e.sourcePosition,e.getMovedRangeStart()),h.end=h.end._getCombined(e.sourcePosition,e.getMovedRangeStart()),0===c.length?c.push(h):1==c.length?i.start.isBefore(o.start)||i.start.isEqual(o.start)?c.unshift(h):c.push(h):c.splice(1,0,h)),0===c.length?[new Rd(t.baseVersion)]:Zd(c,r)})),Ld(Ed,Dd,((t,e,n)=>{let o=t.targetPosition.clone();t.targetPosition.isEqual(e.insertionPosition)&&e.graveyardPosition&&"moveTargetAfter"!=n.abRelation||(o=t.targetPosition._getTransformedBySplitOperation(e));const i=Tl._createFromPositionAndShift(t.sourcePosition,t.howMany);if(i.end.isEqual(e.insertionPosition))return e.graveyardPosition||t.howMany++,t.targetPosition=o,[t];if(i.start.hasSameParentAs(e.splitPosition)&&i.containsPosition(e.splitPosition)){let t=new Tl(e.splitPosition,i.end);t=t._getTransformedBySplitOperation(e);return Zd([new Tl(i.start,e.splitPosition),t],o)}t.targetPosition.isEqual(e.splitPosition)&&"insertAtSource"==n.abRelation&&(o=e.moveTargetPosition),t.targetPosition.isEqual(e.insertionPosition)&&"insertBetween"==n.abRelation&&(o=t.targetPosition);const r=[i._getTransformedBySplitOperation(e)];if(e.graveyardPosition){const o=i.start.isEqual(e.graveyardPosition)||i.containsPosition(e.graveyardPosition);t.howMany>1&&o&&!n.aWasUndone&&r.push(Tl._createFromPositionAndShift(e.insertionPosition,1))}return Zd(r,o)})),Ld(Ed,Sd,((t,e,n)=>{const o=Tl._createFromPositionAndShift(t.sourcePosition,t.howMany);if(e.deletionPosition.hasSameParentAs(t.sourcePosition)&&o.containsPosition(e.sourcePosition))if("remove"!=t.type||n.forceWeakRemove){if(1==t.howMany)return n.bWasUndone?(t.sourcePosition=e.graveyardPosition.clone(),t.targetPosition=t.targetPosition._getTransformedByMergeOperation(e),[t]):[new Rd(0)]}else if(!n.aWasUndone){const n=[];let o=e.graveyardPosition.clone(),i=e.targetPosition._getTransformedByMergeOperation(e);t.howMany>1&&(n.push(new Ed(t.sourcePosition,t.howMany-1,t.targetPosition,0)),o=o._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany-1),i=i._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany-1));const r=e.deletionPosition._getCombined(t.sourcePosition,t.targetPosition),s=new Ed(o,1,r,0),a=s.getMovedRangeStart().path.slice();a.push(0);const l=new Al(s.targetPosition.root,a);i=i._getTransformedByMove(o,r,1);const c=new Ed(i,e.howMany,l,0);return n.push(s),n.push(c),n}const i=Tl._createFromPositionAndShift(t.sourcePosition,t.howMany)._getTransformedByMergeOperation(e);return t.sourcePosition=i.start,t.howMany=i.end.offset-i.start.offset,t.targetPosition=t.targetPosition._getTransformedByMergeOperation(e),[t]})),Ld(zd,Td,((t,e)=>(t.position=t.position._getTransformedByInsertOperation(e),[t]))),Ld(zd,Sd,((t,e)=>t.position.isEqual(e.deletionPosition)?(t.position=e.graveyardPosition.clone(),t.position.stickiness="toNext",[t]):(t.position=t.position._getTransformedByMergeOperation(e),[t]))),Ld(zd,Ed,((t,e)=>(t.position=t.position._getTransformedByMoveOperation(e),[t]))),Ld(zd,zd,((t,e,n)=>{if(t.position.isEqual(e.position)){if(!n.aIsStrong)return[new Rd(0)];t.oldName=e.newName}return[t]})),Ld(zd,Dd,((t,e)=>{if("same"==J(t.position.path,e.splitPosition.getParentPath())&&!e.graveyardPosition){const e=new zd(t.position.getShiftedBy(1),t.oldName,t.newName,0);return[t,e]}return t.position=t.position._getTransformedBySplitOperation(e),[t]})),Ld(Vd,Vd,((t,e,n)=>{if(t.root===e.root&&t.key===e.key){if(!n.aIsStrong||t.newValue===e.newValue)return[new Rd(0)];t.oldValue=e.newValue}return[t]})),Ld(Od,Od,((t,e,n)=>t.rootName!==e.rootName||t.isAdd!==e.isAdd||n.bWasUndone?[t]:[new Rd(0)])),Ld(Dd,Td,((t,e)=>(t.splitPosition.hasSameParentAs(e.position)&&t.splitPosition.offset<e.position.offset&&(t.howMany+=e.howMany),t.splitPosition=t.splitPosition._getTransformedByInsertOperation(e),t.insertionPosition=t.insertionPosition._getTransformedByInsertOperation(e),[t]))),Ld(Dd,Sd,((t,e,n)=>{if(!t.graveyardPosition&&!n.bWasUndone&&t.splitPosition.hasSameParentAs(e.sourcePosition)){const n=e.graveyardPosition.path.slice();n.push(0);const o=new Al(e.graveyardPosition.root,n),i=Dd.getInsertionPosition(new Al(e.graveyardPosition.root,n)),r=new Dd(o,0,i,null,0);return t.splitPosition=t.splitPosition._getTransformedByMergeOperation(e),t.insertionPosition=Dd.getInsertionPosition(t.splitPosition),t.graveyardPosition=r.insertionPosition.clone(),t.graveyardPosition.stickiness="toNext",[r,t]}return t.splitPosition.hasSameParentAs(e.deletionPosition)&&!t.splitPosition.isAfter(e.deletionPosition)&&t.howMany--,t.splitPosition.hasSameParentAs(e.targetPosition)&&(t.howMany+=e.howMany),t.splitPosition=t.splitPosition._getTransformedByMergeOperation(e),t.insertionPosition=Dd.getInsertionPosition(t.splitPosition),t.graveyardPosition&&(t.graveyardPosition=t.graveyardPosition._getTransformedByMergeOperation(e)),[t]})),Ld(Dd,Ed,((t,e,n)=>{const o=Tl._createFromPositionAndShift(e.sourcePosition,e.howMany);if(t.graveyardPosition){const i=o.start.isEqual(t.graveyardPosition)||o.containsPosition(t.graveyardPosition);if(!n.bWasUndone&&i){const n=t.splitPosition._getTransformedByMoveOperation(e),o=t.graveyardPosition._getTransformedByMoveOperation(e),i=o.path.slice();i.push(0);const r=new Al(o.root,i);return[new Ed(n,t.howMany,r,0)]}t.graveyardPosition=t.graveyardPosition._getTransformedByMoveOperation(e)}const i=t.splitPosition.isEqual(e.targetPosition);if(i&&("insertAtSource"==n.baRelation||"splitBefore"==n.abRelation))return t.howMany+=e.howMany,t.splitPosition=t.splitPosition._getTransformedByDeletion(e.sourcePosition,e.howMany),t.insertionPosition=Dd.getInsertionPosition(t.splitPosition),[t];if(i&&n.abRelation&&n.abRelation.howMany){const{howMany:e,offset:o}=n.abRelation;return t.howMany+=e,t.splitPosition=t.splitPosition.getShiftedBy(o),[t]}if(t.splitPosition.hasSameParentAs(e.sourcePosition)&&o.containsPosition(t.splitPosition)){const n=e.howMany-(t.splitPosition.offset-e.sourcePosition.offset);return t.howMany-=n,t.splitPosition.hasSameParentAs(e.targetPosition)&&t.splitPosition.offset<e.targetPosition.offset&&(t.howMany+=e.howMany),t.splitPosition=e.sourcePosition.clone(),t.insertionPosition=Dd.getInsertionPosition(t.splitPosition),[t]}return e.sourcePosition.isEqual(e.targetPosition)||(t.splitPosition.hasSameParentAs(e.sourcePosition)&&t.splitPosition.offset<=e.sourcePosition.offset&&(t.howMany-=e.howMany),t.splitPosition.hasSameParentAs(e.targetPosition)&&t.splitPosition.offset<e.targetPosition.offset&&(t.howMany+=e.howMany)),t.splitPosition.stickiness="toNone",t.splitPosition=t.splitPosition._getTransformedByMoveOperation(e),t.splitPosition.stickiness="toNext",t.graveyardPosition?t.insertionPosition=t.insertionPosition._getTransformedByMoveOperation(e):t.insertionPosition=Dd.getInsertionPosition(t.splitPosition),[t]})),Ld(Dd,Dd,((t,e,n)=>{if(t.splitPosition.isEqual(e.splitPosition)){if(!t.graveyardPosition&&!e.graveyardPosition)return[new Rd(0)];if(t.graveyardPosition&&e.graveyardPosition&&t.graveyardPosition.isEqual(e.graveyardPosition))return[new Rd(0)];if("splitBefore"==n.abRelation)return t.howMany=0,t.graveyardPosition=t.graveyardPosition._getTransformedBySplitOperation(e),[t]}if(t.graveyardPosition&&e.graveyardPosition&&t.graveyardPosition.isEqual(e.graveyardPosition)){const o="$graveyard"==t.splitPosition.root.rootName,i="$graveyard"==e.splitPosition.root.rootName;if(i&&!o||!(o&&!i)&&n.aIsStrong){const n=[];return e.howMany&&n.push(new Ed(e.moveTargetPosition,e.howMany,e.splitPosition,0)),t.howMany&&n.push(new Ed(t.splitPosition,t.howMany,t.moveTargetPosition,0)),n}return[new Rd(0)]}if(t.graveyardPosition&&(t.graveyardPosition=t.graveyardPosition._getTransformedBySplitOperation(e)),t.splitPosition.isEqual(e.insertionPosition)&&"splitBefore"==n.abRelation)return t.howMany++,[t];if(e.splitPosition.isEqual(t.insertionPosition)&&"splitBefore"==n.baRelation){const n=e.insertionPosition.path.slice();n.push(0);const o=new Al(e.insertionPosition.root,n);return[t,new Ed(t.insertionPosition,1,o,0)]}return t.splitPosition.hasSameParentAs(e.splitPosition)&&t.splitPosition.offset<e.splitPosition.offset&&(t.howMany-=e.howMany),t.splitPosition=t.splitPosition._getTransformedBySplitOperation(e),t.insertionPosition=Dd.getInsertionPosition(t.splitPosition),[t]}));class Jd extends(T(Al)){constructor(t,e,n="toNone"){if(super(t,e,n),!this.root.is("rootElement"))throw new b("model-liveposition-root-not-rootelement",t);Yd.call(this)}detach(){this.stopListening()}toPosition(){return new Al(this.root,this.path.slice(),this.stickiness)}static fromPosition(t,e){return new this(t.root,t.path.slice(),e||t.stickiness)}}function Yd(){this.listenTo(this.root.document.model,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&Qd.call(this,n)}),{priority:"low"})}function Qd(t){const e=this.getTransformedByOperation(t);if(!this.isEqual(e)){const t=this.toPosition();this.path=e.path,this.root=e.root,this.fire("change",t)}}Jd.prototype.is=function(t){return"livePosition"===t||"model:livePosition"===t||"position"==t||"model:position"===t};class Xd{constructor(t={}){"string"==typeof t&&(t="transparent"===t?{isUndoable:!1}:{},k("batch-constructor-deprecated-string-type"));const{isUndoable:e=!0,isLocal:n=!0,isUndo:o=!1,isTyping:i=!1}=t;this.operations=[],this.isUndoable=e,this.isLocal=n,this.isUndo=o,this.isTyping=i}get type(){return k("batch-type-deprecated"),"default"}get baseVersion(){for(const t of this.operations)if(null!==t.baseVersion)return t.baseVersion;return null}addOperation(t){return t.batch=this,this.operations.push(t),t}}var th=Object.defineProperty,eh=Object.getOwnPropertySymbols,nh=Object.prototype.hasOwnProperty,oh=Object.prototype.propertyIsEnumerable,ih=(t,e,n)=>e in t?th(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;class rh{constructor(t){this._changesInElement=new Map,this._elementSnapshots=new Map,this._changedMarkers=new Map,this._changedRoots=new Map,this._changeCount=0,this._cachedChanges=null,this._cachedChangesWithGraveyard=null,this._refreshedItems=new Set,this._markerCollection=t}get isEmpty(){return 0==this._changesInElement.size&&0==this._changedMarkers.size&&0==this._changedRoots.size}bufferOperation(t){const e=t;switch(e.type){case"insert":if(this._isInInsertedElement(e.position.parent))return;this._markInsert(e.position.parent,e.position.offset,e.nodes.maxOffset);break;case"addAttribute":case"removeAttribute":case"changeAttribute":for(const t of e.range.getItems({shallow:!0}))this._isInInsertedElement(t.parent)||this._markAttribute(t);break;case"remove":case"move":case"reinsert":{if(e.sourcePosition.isEqual(e.targetPosition)||e.sourcePosition.getShiftedBy(e.howMany).isEqual(e.targetPosition))return;const t=this._isInInsertedElement(e.sourcePosition.parent),n=this._isInInsertedElement(e.targetPosition.parent);t||this._markRemove(e.sourcePosition.parent,e.sourcePosition.offset,e.howMany),n||this._markInsert(e.targetPosition.parent,e.getMovedRangeStart().offset,e.howMany);break}case"rename":{if(this._isInInsertedElement(e.position.parent))return;this._markRemove(e.position.parent,e.position.offset,1),this._markInsert(e.position.parent,e.position.offset,1);const t=Tl._createFromPositionAndShift(e.position,1);for(const e of this._markerCollection.getMarkersIntersectingRange(t)){const t=e.getData();this.bufferMarkerChange(e.name,t,t)}break}case"split":{const t=e.splitPosition.parent;this._isInInsertedElement(t)||this._markRemove(t,e.splitPosition.offset,e.howMany),this._isInInsertedElement(e.insertionPosition.parent)||this._markInsert(e.insertionPosition.parent,e.insertionPosition.offset,1),e.graveyardPosition&&this._markRemove(e.graveyardPosition.parent,e.graveyardPosition.offset,1);break}case"merge":{const t=e.sourcePosition.parent;this._isInInsertedElement(t.parent)||this._markRemove(t.parent,t.startOffset,1);const n=e.graveyardPosition.parent;this._markInsert(n,e.graveyardPosition.offset,1);const o=e.targetPosition.parent;this._isInInsertedElement(o)||this._markInsert(o,e.targetPosition.offset,t.maxOffset);break}case"detachRoot":case"addRoot":this._bufferRootStateChange(e.rootName,e.isAdd);break;case"addRootAttribute":case"removeRootAttribute":case"changeRootAttribute":{const t=e.root.rootName;this._bufferRootAttributeChange(t,e.key,e.oldValue,e.newValue);break}}this._cachedChanges=null}bufferMarkerChange(t,e,n){const o=this._changedMarkers.get(t);o?(o.newMarkerData=n,null==o.oldMarkerData.range&&null==n.range&&this._changedMarkers.delete(t)):this._changedMarkers.set(t,{newMarkerData:n,oldMarkerData:e})}getMarkersToRemove(){const t=[];for(const[e,n]of this._changedMarkers)null!=n.oldMarkerData.range&&t.push({name:e,range:n.oldMarkerData.range});return t}getMarkersToAdd(){const t=[];for(const[e,n]of this._changedMarkers)null!=n.newMarkerData.range&&t.push({name:e,range:n.newMarkerData.range});return t}getChangedMarkers(){return Array.from(this._changedMarkers).map((([t,e])=>({name:t,data:{oldRange:e.oldMarkerData.range,newRange:e.newMarkerData.range}})))}hasDataChanges(){if(this._changesInElement.size>0)return!0;if(this._changedRoots.size>0)return!0;for(const{newMarkerData:t,oldMarkerData:e}of this._changedMarkers.values()){if(t.affectsData!==e.affectsData)return!0;if(t.affectsData){const n=t.range&&!e.range,o=!t.range&&e.range,i=t.range&&e.range&&!t.range.isEqual(e.range);if(n||o||i)return!0}}return!1}getChanges(t={}){if(this._cachedChanges)return t.includeChangesInGraveyard?this._cachedChangesWithGraveyard.slice():this._cachedChanges.slice();let e=[];for(const t of this._changesInElement.keys()){const n=this._changesInElement.get(t).sort(((t,e)=>t.offset===e.offset?t.type!=e.type?"remove"==t.type?-1:1:0:t.offset<e.offset?-1:1)),o=this._elementSnapshots.get(t),i=sh(t.getChildren()),r=ah(o.length,n);let s=0,a=0;for(const n of r)if("i"===n)e.push(this._getInsertDiff(t,s,i[s])),s++;else if("r"===n)e.push(this._getRemoveDiff(t,s,o[a])),a++;else if("a"===n){const n=i[s].attributes,r=o[a].attributes;let l;if("$text"==i[s].name)l=new Tl(Al._createAt(t,s),Al._createAt(t,s+1));else{const e=t.offsetToIndex(s);l=new Tl(Al._createAt(t,s),Al._createAt(t.getChild(e),0))}e.push(...this._getAttributesDiff(l,r,n)),s++,a++}else s++,a++}e.sort(((t,e)=>t.position.root!=e.position.root?t.position.root.rootName<e.position.root.rootName?-1:1:t.position.isEqual(e.position)?t.changeCount-e.changeCount:t.position.isBefore(e.position)?-1:1));for(let t=1,n=0;t<e.length;t++){const o=e[n],i=e[t],r="remove"==o.type&&"remove"==i.type&&"$text"==o.name&&"$text"==i.name&&o.position.isEqual(i.position),s="insert"==o.type&&"insert"==i.type&&"$text"==o.name&&"$text"==i.name&&o.position.parent==i.position.parent&&o.position.offset+o.length==i.position.offset,a="attribute"==o.type&&"attribute"==i.type&&o.position.parent==i.position.parent&&o.range.isFlat&&i.range.isFlat&&o.position.offset+o.length==i.position.offset&&o.attributeKey==i.attributeKey&&o.attributeOldValue==i.attributeOldValue&&o.attributeNewValue==i.attributeNewValue;r||s||a?(o.length++,a&&(o.range.end=o.range.end.getShiftedBy(1)),e[t]=null):n=t}e=e.filter((t=>t));for(const t of e)delete t.changeCount,"attribute"==t.type&&(delete t.position,delete t.length);return this._changeCount=0,this._cachedChangesWithGraveyard=e,this._cachedChanges=e.filter(lh),t.includeChangesInGraveyard?this._cachedChangesWithGraveyard.slice():this._cachedChanges.slice()}getChangedRoots(){return Array.from(this._changedRoots.values()).map((t=>{const e=((t,e)=>{for(var n in e||(e={}))nh.call(e,n)&&ih(t,n,e[n]);if(eh)for(var n of eh(e))oh.call(e,n)&&ih(t,n,e[n]);return t})({},t);return void 0!==e.state&&delete e.attributes,e}))}getRefreshedItems(){return new Set(this._refreshedItems)}reset(){this._changesInElement.clear(),this._elementSnapshots.clear(),this._changedMarkers.clear(),this._changedRoots.clear(),this._refreshedItems=new Set,this._cachedChanges=null}_bufferRootStateChange(t,e){if(!this._changedRoots.has(t))return void this._changedRoots.set(t,{name:t,state:e?"attached":"detached"});const n=this._changedRoots.get(t);void 0!==n.state?(delete n.state,void 0===n.attributes&&this._changedRoots.delete(t)):n.state=e?"attached":"detached"}_bufferRootAttributeChange(t,e,n,o){const i=this._changedRoots.get(t)||{name:t},r=i.attributes||{};if(r[e]){const t=r[e];o===t.oldValue?delete r[e]:t.newValue=o}else r[e]={oldValue:n,newValue:o};0===Object.entries(r).length?(delete i.attributes,void 0===i.state&&this._changedRoots.delete(t)):(i.attributes=r,this._changedRoots.set(t,i))}_refreshItem(t){if(this._isInInsertedElement(t.parent))return;this._markRemove(t.parent,t.startOffset,t.offsetSize),this._markInsert(t.parent,t.startOffset,t.offsetSize),this._refreshedItems.add(t);const e=Tl._createOn(t);for(const t of this._markerCollection.getMarkersIntersectingRange(e)){const e=t.getData();this.bufferMarkerChange(t.name,e,e)}this._cachedChanges=null}_markInsert(t,e,n){const o={type:"insert",offset:e,howMany:n,count:this._changeCount++};this._markChange(t,o)}_markRemove(t,e,n){const o={type:"remove",offset:e,howMany:n,count:this._changeCount++};this._markChange(t,o),this._removeAllNestedChanges(t,e,n)}_markAttribute(t){const e={type:"attribute",offset:t.startOffset,howMany:t.offsetSize,count:this._changeCount++};this._markChange(t.parent,e)}_markChange(t,e){this._makeSnapshot(t);const n=this._getChangesForElement(t);this._handleChange(e,n),n.push(e);for(let t=0;t<n.length;t++)n[t].howMany<1&&(n.splice(t,1),t--)}_getChangesForElement(t){let e;return this._changesInElement.has(t)?e=this._changesInElement.get(t):(e=[],this._changesInElement.set(t,e)),e}_makeSnapshot(t){this._elementSnapshots.has(t)||this._elementSnapshots.set(t,sh(t.getChildren()))}_handleChange(t,e){t.nodesToHandle=t.howMany;for(const n of e){const o=t.offset+t.howMany,i=n.offset+n.howMany;if("insert"==t.type&&("insert"==n.type&&(t.offset<=n.offset?n.offset+=t.howMany:t.offset<i&&(n.howMany+=t.nodesToHandle,t.nodesToHandle=0)),"remove"==n.type&&t.offset<n.offset&&(n.offset+=t.howMany),"attribute"==n.type))if(t.offset<=n.offset)n.offset+=t.howMany;else if(t.offset<i){const i=n.howMany;n.howMany=t.offset-n.offset,e.unshift({type:"attribute",offset:o,howMany:i-n.howMany,count:this._changeCount++})}if("remove"==t.type){if("insert"==n.type)if(o<=n.offset)n.offset-=t.howMany;else if(o<=i)if(t.offset<n.offset){const e=o-n.offset;n.offset=t.offset,n.howMany-=e,t.nodesToHandle-=e}else n.howMany-=t.nodesToHandle,t.nodesToHandle=0;else if(t.offset<=n.offset)t.nodesToHandle-=n.howMany,n.howMany=0;else if(t.offset<i){const e=i-t.offset;n.howMany-=e,t.nodesToHandle-=e}if("remove"==n.type&&(o<=n.offset?n.offset-=t.howMany:t.offset<n.offset&&(t.nodesToHandle+=n.howMany,n.howMany=0)),"attribute"==n.type)if(o<=n.offset)n.offset-=t.howMany;else if(t.offset<n.offset){const e=o-n.offset;n.offset=t.offset,n.howMany-=e}else if(t.offset<i)if(o<=i){const o=n.howMany;n.howMany=t.offset-n.offset;const i=o-n.howMany-t.nodesToHandle;e.unshift({type:"attribute",offset:t.offset,howMany:i,count:this._changeCount++})}else n.howMany-=i-t.offset}if("attribute"==t.type){if("insert"==n.type)if(t.offset<n.offset&&o>n.offset){if(o>i){const t={type:"attribute",offset:i,howMany:o-i,count:this._changeCount++};this._handleChange(t,e),e.push(t)}t.nodesToHandle=n.offset-t.offset,t.howMany=t.nodesToHandle}else t.offset>=n.offset&&t.offset<i&&(o>i?(t.nodesToHandle=o-i,t.offset=i):t.nodesToHandle=0);if("remove"==n.type&&t.offset<n.offset&&o>n.offset){const i={type:"attribute",offset:n.offset,howMany:o-n.offset,count:this._changeCount++};this._handleChange(i,e),e.push(i),t.nodesToHandle=n.offset-t.offset,t.howMany=t.nodesToHandle}"attribute"==n.type&&(t.offset>=n.offset&&o<=i?(t.nodesToHandle=0,t.howMany=0,t.offset=0):t.offset<=n.offset&&o>=i&&(n.howMany=0))}}t.howMany=t.nodesToHandle,delete t.nodesToHandle}_getInsertDiff(t,e,n){return{type:"insert",position:Al._createAt(t,e),name:n.name,attributes:new Map(n.attributes),length:1,changeCount:this._changeCount++}}_getRemoveDiff(t,e,n){return{type:"remove",position:Al._createAt(t,e),name:n.name,attributes:new Map(n.attributes),length:1,changeCount:this._changeCount++}}_getAttributesDiff(t,e,n){const o=[];n=new Map(n);for(const[i,r]of e){const e=n.has(i)?n.get(i):null;e!==r&&o.push({type:"attribute",position:t.start,range:t.clone(),length:1,attributeKey:i,attributeOldValue:r,attributeNewValue:e,changeCount:this._changeCount++}),n.delete(i)}for(const[e,i]of n)o.push({type:"attribute",position:t.start,range:t.clone(),length:1,attributeKey:e,attributeOldValue:null,attributeNewValue:i,changeCount:this._changeCount++});return o}_isInInsertedElement(t){const e=t.parent;if(!e)return!1;const n=this._changesInElement.get(e),o=t.startOffset;if(n)for(const t of n)if("insert"==t.type&&o>=t.offset&&o<t.offset+t.howMany)return!0;return this._isInInsertedElement(e)}_removeAllNestedChanges(t,e,n){const o=new Tl(Al._createAt(t,e),Al._createAt(t,e+n));for(const t of o.getItems({shallow:!0}))t.is("element")&&(this._elementSnapshots.delete(t),this._changesInElement.delete(t),this._removeAllNestedChanges(t,0,t.maxOffset))}}function sh(t){const e=[];for(const n of t)if(n.is("$text"))for(let t=0;t<n.data.length;t++)e.push({name:"$text",attributes:new Map(n.getAttributes())});else e.push({name:n.name,attributes:new Map(n.getAttributes())});return e}function ah(t,e){const n=[];let o=0,i=0;for(const t of e){if(t.offset>o){for(let e=0;e<t.offset-o;e++)n.push("e");i+=t.offset-o}if("insert"==t.type){for(let e=0;e<t.howMany;e++)n.push("i");o=t.offset+t.howMany}else if("remove"==t.type){for(let e=0;e<t.howMany;e++)n.push("r");o=t.offset,i+=t.howMany}else n.push(..."a".repeat(t.howMany).split("")),o=t.offset+t.howMany,i+=t.howMany}if(i<t)for(let e=0;e<t-i-o;e++)n.push("e");return n}function lh(t){const e="position"in t&&"$graveyard"==t.position.root.rootName,n="range"in t&&"$graveyard"==t.range.root.rootName;return!e&&!n}class ch{constructor(){this._operations=[],this._undoPairs=new Map,this._undoneOperations=new Set,this._baseVersionToOperationIndex=new Map,this._version=0,this._gaps=new Map}get version(){return this._version}set version(t){this._operations.length&&t>this._version+1&&this._gaps.set(this._version,t),this._version=t}get lastOperation(){return this._operations[this._operations.length-1]}addOperation(t){if(t.baseVersion!==this.version)throw new b("model-document-history-addoperation-incorrect-version",this,{operation:t,historyVersion:this.version});this._operations.push(t),this._version++,this._baseVersionToOperationIndex.set(t.baseVersion,this._operations.length-1)}getOperations(t,e=this.version){if(!this._operations.length)return[];const n=this._operations[0];void 0===t&&(t=n.baseVersion);let o=e-1;for(const[e,n]of this._gaps)t>e&&t<n&&(t=n),o>e&&o<n&&(o=e-1);if(o<n.baseVersion||t>this.lastOperation.baseVersion)return[];let i=this._baseVersionToOperationIndex.get(t);void 0===i&&(i=0);let r=this._baseVersionToOperationIndex.get(o);return void 0===r&&(r=this._operations.length-1),this._operations.slice(i,r+1)}getOperation(t){const e=this._baseVersionToOperationIndex.get(t);if(void 0!==e)return this._operations[e]}setOperationAsUndone(t,e){this._undoPairs.set(e,t),this._undoneOperations.add(t)}isUndoingOperation(t){return this._undoPairs.has(t)}isUndoneOperation(t){return this._undoneOperations.has(t)}getUndoneOperation(t){return this._undoPairs.get(t)}reset(){this._version=0,this._undoPairs=new Map,this._operations=[],this._undoneOperations=new Set,this._gaps=new Map,this._baseVersionToOperationIndex=new Map}}class dh extends kl{constructor(t,e,n="main"){super(e),this._isAttached=!0,this._document=t,this.rootName=n}get document(){return this._document}isAttached(){return this._isAttached}toJSON(){return this.rootName}}dh.prototype.is=function(t,e){return e?e===this.name&&("rootElement"===t||"model:rootElement"===t||"element"===t||"model:element"===t):"rootElement"===t||"model:rootElement"===t||"element"===t||"model:element"===t||"node"===t||"model:node"===t};var hh=Object.defineProperty,uh=Object.defineProperties,gh=Object.getOwnPropertyDescriptors,mh=Object.getOwnPropertySymbols,ph=Object.prototype.hasOwnProperty,fh=Object.prototype.propertyIsEnumerable,bh=(t,e,n)=>e in t?hh(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n,kh=(t,e)=>{for(var n in e||(e={}))ph.call(e,n)&&bh(t,n,e[n]);if(mh)for(var n of mh(e))fh.call(e,n)&&bh(t,n,e[n]);return t},wh=(t,e)=>uh(t,gh(e));const _h="$graveyard";class Ah extends(T()){constructor(t){super(),this.model=t,this.history=new ch,this.selection=new tc(this),this.roots=new vi({idProperty:"rootName"}),this.differ=new rh(t.markers),this._postFixers=new Set,this._hasSelectionChangedFromTheLastChangeBlock=!1,this.createRoot("$root",_h),this.listenTo(t,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&this.differ.bufferOperation(n)}),{priority:"high"}),this.listenTo(t,"applyOperation",((t,e)=>{const n=e[0];n.isDocumentOperation&&this.history.addOperation(n)}),{priority:"low"}),this.listenTo(this.selection,"change",(()=>{this._hasSelectionChangedFromTheLastChangeBlock=!0})),this.listenTo(t.markers,"update",((t,e,n,o,i)=>{const r=wh(kh({},e.getData()),{range:o});this.differ.bufferMarkerChange(e.name,i,r),null===n&&e.on("change",((t,n)=>{const o=e.getData();this.differ.bufferMarkerChange(e.name,wh(kh({},o),{range:n}),o)}))})),this.registerPostFixer((t=>{let e=!1;for(const n of this.roots)n.isAttached()||n.isEmpty||(t.remove(t.createRangeIn(n)),e=!0);for(const n of this.model.markers)n.getRange().root.isAttached()||(t.removeMarker(n),e=!0);return e}))}get version(){return this.history.version}set version(t){this.history.version=t}get graveyard(){return this.getRoot(_h)}createRoot(t="$root",e="main"){if(this.roots.get(e))throw new b("model-document-createroot-name-exists",this,{name:e});const n=new dh(this,t,e);return this.roots.add(n),n}destroy(){this.selection.destroy(),this.stopListening()}getRoot(t="main"){return this.roots.get(t)}getRootNames(t=!1){return Array.from(this.roots).filter((e=>e.rootName!=_h&&(t||e.isAttached()))).map((t=>t.rootName))}registerPostFixer(t){this._postFixers.add(t)}toJSON(){const t=Qi(this);return t.selection="[engine.model.DocumentSelection]",t.model="[engine.model.Model]",t}_handleChangeBlock(t){this._hasDocumentChangedFromTheLastChangeBlock()&&(this._callPostFixers(t),this.selection.refresh(),this.differ.hasDataChanges()?this.fire("change:data",t.batch):this.fire("change",t.batch),this.selection.refresh(),this.differ.reset()),this._hasSelectionChangedFromTheLastChangeBlock=!1}_hasDocumentChangedFromTheLastChangeBlock(){return!this.differ.isEmpty||this._hasSelectionChangedFromTheLastChangeBlock}_getDefaultRoot(){for(const t of this.roots)if(t!==this.graveyard)return t;return this.graveyard}_getDefaultRange(){const t=this._getDefaultRoot(),e=this.model,n=e.schema,o=e.createPositionFromPath(t,[0]);return n.getNearestSelectionRange(o)||e.createRange(o)}_validateSelectionRange(t){return Ch(t.start)&&Ch(t.end)}_callPostFixers(t){let e=!1;do{for(const n of this._postFixers)if(this.selection.refresh(),e=n(t),e)break}while(e)}}function Ch(t){const e=t.textNode;if(e){const n=e.data,o=t.offset-e.startOffset;return!Di(n,o)&&!Si(n,o)}return!0}var vh=Object.defineProperty,yh=Object.defineProperties,xh=Object.getOwnPropertyDescriptors,Eh=Object.getOwnPropertySymbols,Th=Object.prototype.hasOwnProperty,Dh=Object.prototype.propertyIsEnumerable,Sh=(t,e,n)=>e in t?vh(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;class Bh extends(T()){constructor(){super(...arguments),this._markers=new Map}[Symbol.iterator](){return this._markers.values()}has(t){const e=t instanceof Ih?t.name:t;return this._markers.has(e)}get(t){return this._markers.get(t)||null}_set(t,e,n=!1,o=!1){const i=t instanceof Ih?t.name:t;if(i.includes(","))throw new b("markercollection-incorrect-marker-name",this);const r=this._markers.get(i);if(r){const t=r.getData(),s=r.getRange();let a=!1;return s.isEqual(e)||(r._attachLiveRange(Jl.fromRange(e)),a=!0),n!=r.managedUsingOperations&&(r._managedUsingOperations=n,a=!0),"boolean"==typeof o&&o!=r.affectsData&&(r._affectsData=o,a=!0),a&&this.fire(`update:${i}`,r,s,e,t),r}const s=Jl.fromRange(e),a=new Ih(i,s,n,o);var l;return this._markers.set(i,a),this.fire(`update:${i}`,a,null,e,(l=((t,e)=>{for(var n in e||(e={}))Th.call(e,n)&&Sh(t,n,e[n]);if(Eh)for(var n of Eh(e))Dh.call(e,n)&&Sh(t,n,e[n]);return t})({},a.getData()),yh(l,xh({range:null})))),a}_remove(t){const e=t instanceof Ih?t.name:t,n=this._markers.get(e);return!!n&&(this._markers.delete(e),this.fire(`update:${e}`,n,n.getRange(),null,n.getData()),this._destroyMarker(n),!0)}_refresh(t){const e=t instanceof Ih?t.name:t,n=this._markers.get(e);if(!n)throw new b("markercollection-refresh-marker-not-exists",this);const o=n.getRange();this.fire(`update:${e}`,n,o,o,n.getData())}*getMarkersAtPosition(t){for(const e of this)e.getRange().containsPosition(t)&&(yield e)}*getMarkersIntersectingRange(t){for(const e of this)null!==e.getRange().getIntersection(t)&&(yield e)}destroy(){for(const t of this._markers.values())this._destroyMarker(t);this._markers=null,this.stopListening()}*getMarkersGroup(t){for(const e of this._markers.values())e.name.startsWith(t+":")&&(yield e)}_destroyMarker(t){t.stopListening(),t._detachLiveRange()}}class Ih extends(T(gl)){constructor(t,e,n,o){super(),this.name=t,this._liveRange=this._attachLiveRange(e),this._managedUsingOperations=n,this._affectsData=o}get managedUsingOperations(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._managedUsingOperations}get affectsData(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._affectsData}getData(){return{range:this.getRange(),affectsData:this.affectsData,managedUsingOperations:this.managedUsingOperations}}getStart(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._liveRange.start.clone()}getEnd(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._liveRange.end.clone()}getRange(){if(!this._liveRange)throw new b("marker-destroyed",this);return this._liveRange.toRange()}_attachLiveRange(t){return this._liveRange&&this._detachLiveRange(),t.delegate("change:range").to(this),t.delegate("change:content").to(this),this._liveRange=t,t}_detachLiveRange(){this._liveRange.stopDelegating("change:range",this),this._liveRange.stopDelegating("change:content",this),this._liveRange.detach(),this._liveRange=null}}Ih.prototype.is=function(t){return"marker"===t||"model:marker"===t};class Ph extends kd{constructor(t,e){super(null),this.sourcePosition=t.clone(),this.howMany=e}get type(){return"detach"}toJSON(){const t=super.toJSON();return t.sourcePosition=this.sourcePosition.toJSON(),t}_validate(){if(this.sourcePosition.root.document)throw new b("detach-operation-on-document-node",this)}_execute(){_d(Tl._createFromPositionAndShift(this.sourcePosition,this.howMany))}static get className(){return"DetachOperation"}}class Rh extends gl{constructor(t){super(),this.markers=new Map,this._children=new pl,t&&this._insertChild(0,t)}[Symbol.iterator](){return this.getChildren()}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}get nextSibling(){return null}get previousSibling(){return null}get root(){return this}get parent(){return null}get document(){return null}isAttached(){return!1}getAncestors(){return[]}getChild(t){return this._children.getNode(t)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(t){return this._children.getNodeIndex(t)}getChildStartOffset(t){return this._children.getNodeStartOffset(t)}getPath(){return[]}getNodeByPath(t){let e=this;for(const n of t)e=e.getChild(e.offsetToIndex(n));return e}offsetToIndex(t){return this._children.offsetToIndex(t)}toJSON(){const t=[];for(const e of this._children)t.push(e.toJSON());return t}static fromJSON(t){const e=[];for(const n of t)n.name?e.push(kl.fromJSON(n)):e.push(fl.fromJSON(n));return new Rh(e)}_appendChild(t){this._insertChild(this.childCount,t)}_insertChild(t,e){const n=function(t){if("string"==typeof t)return[new fl(t)];Y(t)||(t=[t]);return Array.from(t).map((t=>"string"==typeof t?new fl(t):t instanceof bl?new fl(t.data,t.getAttributes()):t))}(e);for(const t of n)null!==t.parent&&t._remove(),t.parent=this;this._children._insertNodes(t,n)}_removeChildren(t,e=1){const n=this._children._removeNodes(t,e);for(const t of n)t.parent=null;return n}}Rh.prototype.is=function(t){return"documentFragment"===t||"model:documentFragment"===t};class zh{constructor(t,e){this.model=t,this.batch=e}createText(t,e){return new fl(t,e)}createElement(t,e){return new kl(t,e)}createDocumentFragment(){return new Rh}cloneElement(t,e=!0){return t._clone(e)}insert(t,e,n=0){if(this._assertWriterUsedCorrectly(),t instanceof fl&&""==t.data)return;const o=Al._createAt(e,n);if(t.parent){if(Mh(t.root,o.root))return void this.move(Tl._createOn(t),o);if(t.root.document)throw new b("model-writer-insert-forbidden-move",this);this.remove(t)}const i=o.root.document?o.root.document.version:null,r=new Td(o,t,i);if(t instanceof fl&&(r.shouldReceiveAttributes=!0),this.batch.addOperation(r),this.model.applyOperation(r),t instanceof Rh)for(const[e,n]of t.markers){const t=Al._createAt(n.root,0),i={range:new Tl(n.start._getCombined(t,o),n.end._getCombined(t,o)),usingOperation:!0,affectsData:!0};this.model.markers.has(e)?this.updateMarker(e,i):this.addMarker(e,i)}}insertText(t,e,n,o){e instanceof Rh||e instanceof kl||e instanceof Al?this.insert(this.createText(t),e,n):this.insert(this.createText(t,e),n,o)}insertElement(t,e,n,o){e instanceof Rh||e instanceof kl||e instanceof Al?this.insert(this.createElement(t),e,n):this.insert(this.createElement(t,e),n,o)}append(t,e){this.insert(t,e,"end")}appendText(t,e,n){e instanceof Rh||e instanceof kl?this.insert(this.createText(t),e,"end"):this.insert(this.createText(t,e),n,"end")}appendElement(t,e,n){e instanceof Rh||e instanceof kl?this.insert(this.createElement(t),e,"end"):this.insert(this.createElement(t,e),n,"end")}setAttribute(t,e,n){if(this._assertWriterUsedCorrectly(),n instanceof Tl){const o=n.getMinimalFlatRanges();for(const n of o)Vh(this,t,e,n)}else Oh(this,t,e,n)}setAttributes(t,e){for(const[n,o]of Ti(t))this.setAttribute(n,o,e)}removeAttribute(t,e){if(this._assertWriterUsedCorrectly(),e instanceof Tl){const n=e.getMinimalFlatRanges();for(const e of n)Vh(this,t,null,e)}else Oh(this,t,null,e)}clearAttributes(t){this._assertWriterUsedCorrectly();const e=t=>{for(const e of t.getAttributeKeys())this.removeAttribute(e,t)};if(t instanceof Tl)for(const n of t.getItems())e(n);else e(t)}move(t,e,n){if(this._assertWriterUsedCorrectly(),!(t instanceof Tl))throw new b("writer-move-invalid-range",this);if(!t.isFlat)throw new b("writer-move-range-not-flat",this);const o=Al._createAt(e,n);if(o.isEqual(t.start))return;if(this._addOperationForAffectedMarkers("move",t),!Mh(t.root,o.root))throw new b("writer-move-different-document",this);const i=t.root.document?t.root.document.version:null,r=new Ed(t.start,t.end.offset-t.start.offset,o,i);this.batch.addOperation(r),this.model.applyOperation(r)}remove(t){this._assertWriterUsedCorrectly();const e=(t instanceof Tl?t:Tl._createOn(t)).getMinimalFlatRanges().reverse();for(const t of e)this._addOperationForAffectedMarkers("move",t),Nh(t.start,t.end.offset-t.start.offset,this.batch,this.model)}merge(t){this._assertWriterUsedCorrectly();const e=t.nodeBefore,n=t.nodeAfter;if(this._addOperationForAffectedMarkers("merge",t),!(e instanceof kl))throw new b("writer-merge-no-element-before",this);if(!(n instanceof kl))throw new b("writer-merge-no-element-after",this);t.root.document?this._merge(t):this._mergeDetached(t)}createPositionFromPath(t,e,n){return this.model.createPositionFromPath(t,e,n)}createPositionAt(t,e){return this.model.createPositionAt(t,e)}createPositionAfter(t){return this.model.createPositionAfter(t)}createPositionBefore(t){return this.model.createPositionBefore(t)}createRange(t,e){return this.model.createRange(t,e)}createRangeIn(t){return this.model.createRangeIn(t)}createRangeOn(t){return this.model.createRangeOn(t)}createSelection(...t){return this.model.createSelection(...t)}_mergeDetached(t){const e=t.nodeBefore,n=t.nodeAfter;this.move(Tl._createIn(n),Al._createAt(e,"end")),this.remove(n)}_merge(t){const e=Al._createAt(t.nodeBefore,"end"),n=Al._createAt(t.nodeAfter,0),o=t.root.document.graveyard,i=new Al(o,[0]),r=t.root.document.version,s=new Sd(n,t.nodeAfter.maxOffset,e,i,r);this.batch.addOperation(s),this.model.applyOperation(s)}rename(t,e){if(this._assertWriterUsedCorrectly(),!(t instanceof kl))throw new b("writer-rename-not-element-instance",this);const n=t.root.document?t.root.document.version:null,o=new zd(Al._createBefore(t),t.name,e,n);this.batch.addOperation(o),this.model.applyOperation(o)}split(t,e){this._assertWriterUsedCorrectly();let n,o,i=t.parent;if(!i.parent)throw new b("writer-split-element-no-parent",this);if(e||(e=i.parent),!t.parent.getAncestors({includeSelf:!0}).includes(e))throw new b("writer-split-invalid-limit-element",this);do{const e=i.root.document?i.root.document.version:null,r=i.maxOffset-t.offset,s=Dd.getInsertionPosition(t),a=new Dd(t,r,s,null,e);this.batch.addOperation(a),this.model.applyOperation(a),n||o||(n=i,o=t.parent.nextSibling),i=(t=this.createPositionAfter(t.parent)).parent}while(i!==e);return{position:t,range:new Tl(Al._createAt(n,"end"),Al._createAt(o,0))}}wrap(t,e){if(this._assertWriterUsedCorrectly(),!t.isFlat)throw new b("writer-wrap-range-not-flat",this);const n=e instanceof kl?e:new kl(e);if(n.childCount>0)throw new b("writer-wrap-element-not-empty",this);if(null!==n.parent)throw new b("writer-wrap-element-attached",this);this.insert(n,t.start);const o=new Tl(t.start.getShiftedBy(1),t.end.getShiftedBy(1));this.move(o,Al._createAt(n,0))}unwrap(t){if(this._assertWriterUsedCorrectly(),null===t.parent)throw new b("writer-unwrap-element-no-parent",this);this.move(Tl._createIn(t),this.createPositionAfter(t)),this.remove(t)}addMarker(t,e){if(this._assertWriterUsedCorrectly(),!e||"boolean"!=typeof e.usingOperation)throw new b("writer-addmarker-no-usingoperation",this);const n=e.usingOperation,o=e.range,i=void 0!==e.affectsData&&e.affectsData;if(this.model.markers.has(t))throw new b("writer-addmarker-marker-exists",this);if(!o)throw new b("writer-addmarker-no-range",this);return n?(Fh(this,t,null,o,i),this.model.markers.get(t)):this.model.markers._set(t,o,n,i)}updateMarker(t,e){this._assertWriterUsedCorrectly();const n="string"==typeof t?t:t.name,o=this.model.markers.get(n);if(!o)throw new b("writer-updatemarker-marker-not-exists",this);if(!e)return k("writer-updatemarker-reconvert-using-editingcontroller",{markerName:n}),void this.model.markers._refresh(o);const i="boolean"==typeof e.usingOperation,r="boolean"==typeof e.affectsData,s=r?e.affectsData:o.affectsData;if(!i&&!e.range&&!r)throw new b("writer-updatemarker-wrong-options",this);const a=o.getRange(),l=e.range?e.range:a;i&&e.usingOperation!==o.managedUsingOperations?e.usingOperation?Fh(this,n,null,l,s):(Fh(this,n,a,null,s),this.model.markers._set(n,l,void 0,s)):o.managedUsingOperations?Fh(this,n,a,l,s):this.model.markers._set(n,l,void 0,s)}removeMarker(t){this._assertWriterUsedCorrectly();const e="string"==typeof t?t:t.name;if(!this.model.markers.has(e))throw new b("writer-removemarker-no-marker",this);const n=this.model.markers.get(e);if(!n.managedUsingOperations)return void this.model.markers._remove(e);Fh(this,e,n.getRange(),null,n.affectsData)}addRoot(t,e="$root"){this._assertWriterUsedCorrectly();const n=this.model.document.getRoot(t);if(n&&n.isAttached())throw new b("writer-addroot-root-exists",this);const o=this.model.document,i=new Od(t,e,!0,o,o.version);return this.batch.addOperation(i),this.model.applyOperation(i),this.model.document.getRoot(t)}detachRoot(t){this._assertWriterUsedCorrectly();const e="string"==typeof t?this.model.document.getRoot(t):t;if(!e||!e.isAttached())throw new b("writer-detachroot-no-root",this);for(const t of this.model.markers)t.getRange().root===e&&this.removeMarker(t);for(const t of e.getAttributeKeys())this.removeAttribute(t,e);this.remove(this.createRangeIn(e));const n=this.model.document,o=new Od(e.rootName,e.name,!1,n,n.version);this.batch.addOperation(o),this.model.applyOperation(o)}setSelection(...t){this._assertWriterUsedCorrectly(),this.model.document.selection._setTo(...t)}setSelectionFocus(t,e){this._assertWriterUsedCorrectly(),this.model.document.selection._setFocus(t,e)}setSelectionAttribute(t,e){if(this._assertWriterUsedCorrectly(),"string"==typeof t)this._setSelectionAttribute(t,e);else for(const[e,n]of Ti(t))this._setSelectionAttribute(e,n)}removeSelectionAttribute(t){if(this._assertWriterUsedCorrectly(),"string"==typeof t)this._removeSelectionAttribute(t);else for(const e of t)this._removeSelectionAttribute(e)}overrideSelectionGravity(){return this.model.document.selection._overrideGravity()}restoreSelectionGravity(t){this.model.document.selection._restoreGravity(t)}_setSelectionAttribute(t,e){const n=this.model.document.selection;if(n.isCollapsed&&n.anchor.parent.isEmpty){const o=tc._getStoreAttributeKey(t);this.setAttribute(o,e,n.anchor.parent)}n._setAttribute(t,e)}_removeSelectionAttribute(t){const e=this.model.document.selection;if(e.isCollapsed&&e.anchor.parent.isEmpty){const n=tc._getStoreAttributeKey(t);this.removeAttribute(n,e.anchor.parent)}e._removeAttribute(t)}_assertWriterUsedCorrectly(){if(this.model._currentWriter!==this)throw new b("writer-incorrect-use",this)}_addOperationForAffectedMarkers(t,e){for(const n of this.model.markers){if(!n.managedUsingOperations)continue;const o=n.getRange();let i=!1;if("move"===t){const t=e;i=t.containsPosition(o.start)||t.start.isEqual(o.start)||t.containsPosition(o.end)||t.end.isEqual(o.end)}else{const t=e,n=t.nodeBefore,r=t.nodeAfter,s=o.start.parent==n&&o.start.isAtEnd,a=o.end.parent==r&&0==o.end.offset,l=o.end.nodeAfter==r,c=o.start.nodeAfter==r;i=s||a||l||c}i&&this.updateMarker(n.name,{range:o})}}}function Vh(t,e,n,o){const i=t.model,r=i.document;let s,a,l,c=o.start;for(const t of o.getWalker({shallow:!0}))l=t.item.getAttribute(e),s&&a!=l&&(a!=n&&d(),c=s),s=t.nextPosition,a=l;function d(){const o=new Tl(c,s),l=o.root.document?r.version:null,d=new Pd(o,e,a,n,l);t.batch.addOperation(d),i.applyOperation(d)}s instanceof Al&&s!=c&&a!=n&&d()}function Oh(t,e,n,o){const i=t.model,r=i.document,s=o.getAttribute(e);let a,l;if(s!=n){if(o.root===o){const t=o.document?r.version:null;l=new Vd(o,e,s,n,t)}else{a=new Tl(Al._createBefore(o),t.createPositionAfter(o));const i=a.root.document?r.version:null;l=new Pd(a,e,s,n,i)}t.batch.addOperation(l),i.applyOperation(l)}}function Fh(t,e,n,o,i){const r=t.model,s=r.document,a=new Bd(e,n,o,r.markers,!!i,s.version);t.batch.addOperation(a),r.applyOperation(a)}function Nh(t,e,n,o){let i;if(t.root.document){const n=o.document,r=new Al(n.graveyard,[0]);i=new Ed(t,e,r,n.version)}else i=new Ph(t,e);n.addOperation(i),o.applyOperation(i)}function Mh(t,e){return t===e||t instanceof dh&&e instanceof dh}function Lh(t,e,n={}){if(e.isCollapsed)return;const o=e.getFirstRange();if("$graveyard"==o.root.rootName)return;const i=t.schema;t.change((t=>{if(!n.doNotResetEntireContent&&function(t,e){const n=t.getLimitElement(e);if(!e.containsEntireContent(n))return!1;const o=e.getFirstRange();if(o.start.parent==o.end.parent)return!1;return t.checkChild(n,"paragraph")}(i,e))return void function(t,e){const n=t.model.schema.getLimitElement(e);t.remove(t.createRangeIn(n)),Wh(t,t.createPositionAt(n,0),e)}(t,e);const r={};if(!n.doNotAutoparagraph){const t=e.getSelectedElement();t&&Object.assign(r,i.getAttributesWithProperty(t,"copyOnReplace",!0))}const[s,a]=function(t){const e=t.root.document.model,n=t.start;let o=t.end;if(e.hasContent(t,{ignoreMarkers:!0})){const n=function(t){const e=t.parent,n=e.root.document.model.schema,o=e.getAncestors({parentFirst:!0,includeSelf:!0});for(const t of o){if(n.isLimit(t))return null;if(n.isBlock(t))return t}}(o);if(n&&o.isTouching(e.createPositionAt(n,0))){const n=e.createSelection(t);e.modifySelection(n,{direction:"backward"});const i=n.getLastPosition(),r=e.createRange(i,o);e.hasContent(r,{ignoreMarkers:!0})||(o=i)}}return[Jd.fromPosition(n,"toPrevious"),Jd.fromPosition(o,"toNext")]}(o);s.isTouching(a)||t.remove(t.createRange(s,a)),n.leaveUnmerged||(!function(t,e,n){const o=t.model;if(!qh(t.model.schema,e,n))return;const[i,r]=function(t,e){const n=t.getAncestors(),o=e.getAncestors();let i=0;for(;n[i]&&n[i]==o[i];)i++;return[n[i],o[i]]}(e,n);if(!i||!r)return;!o.hasContent(i,{ignoreMarkers:!0})&&o.hasContent(r,{ignoreMarkers:!0})?jh(t,e,n,i.parent):Hh(t,e,n,i.parent)}(t,s,a),i.removeDisallowedAttributes(s.parent.getChildren(),t)),Uh(t,e,s),!n.doNotAutoparagraph&&function(t,e){const n=t.checkChild(e,"$text"),o=t.checkChild(e,"paragraph");return!n&&o}(i,s)&&Wh(t,s,e,r),s.detach(),a.detach()}))}function Hh(t,e,n,o){const i=e.parent,r=n.parent;if(i!=o&&r!=o){for(e=t.createPositionAfter(i),(n=t.createPositionBefore(r)).isEqual(e)||t.insert(r,e),t.merge(e);n.parent.isEmpty;){const e=n.parent;n=t.createPositionBefore(e),t.remove(e)}qh(t.model.schema,e,n)&&Hh(t,e,n,o)}}function jh(t,e,n,o){const i=e.parent,r=n.parent;if(i!=o&&r!=o){for(e=t.createPositionAfter(i),(n=t.createPositionBefore(r)).isEqual(e)||t.insert(i,n);e.parent.isEmpty;){const n=e.parent;e=t.createPositionBefore(n),t.remove(n)}n=t.createPositionBefore(r),function(t,e){const n=e.nodeBefore,o=e.nodeAfter;n.name!=o.name&&t.rename(n,o.name);t.clearAttributes(n),t.setAttributes(Object.fromEntries(o.getAttributes()),n),t.merge(e)}(t,n),qh(t.model.schema,e,n)&&jh(t,e,n,o)}}function qh(t,e,n){const o=e.parent,i=n.parent;return o!=i&&(!t.isLimit(o)&&!t.isLimit(i)&&function(t,e,n){const o=new Tl(t,e);for(const t of o.getWalker())if(n.isLimit(t.item))return!1;return!0}(e,n,t))}function Wh(t,e,n,o={}){const i=t.createElement("paragraph");t.model.schema.setAllowedAttributes(i,o,t),t.insert(i,e),Uh(t,n,t.createPositionAt(i,0))}function Uh(t,e,n){e instanceof tc?t.setSelection(n):e.setTo(n)}function $h(t,e){const n=[];Array.from(t.getItems({direction:"backward"})).map((t=>e.createRangeOn(t))).filter((e=>(e.start.isAfter(t.start)||e.start.isEqual(t.start))&&(e.end.isBefore(t.end)||e.end.isEqual(t.end)))).forEach((t=>{n.push(t.start.parent),e.remove(t)})),n.forEach((t=>{let n=t;for(;n.parent&&n.isEmpty;){const t=e.createRangeOn(n);n=n.parent,e.remove(t)}}))}class Gh{constructor(t,e,n){this._firstNode=null,this._lastNode=null,this._lastAutoParagraph=null,this._filterAttributesOf=[],this._affectedStart=null,this._affectedEnd=null,this._nodeToSelect=null,this.model=t,this.writer=e,this.position=n,this.canMergeWith=new Set([this.position.parent]),this.schema=t.schema,this._documentFragment=e.createDocumentFragment(),this._documentFragmentPosition=e.createPositionAt(this._documentFragment,0)}handleNodes(t){for(const e of Array.from(t))this._handleNode(e);this._insertPartialFragment(),this._lastAutoParagraph&&this._updateLastNodeFromAutoParagraph(this._lastAutoParagraph),this._mergeOnRight(),this.schema.removeDisallowedAttributes(this._filterAttributesOf,this.writer),this._filterAttributesOf=[]}_updateLastNodeFromAutoParagraph(t){const e=this.writer.createPositionAfter(this._lastNode),n=this.writer.createPositionAfter(t);if(n.isAfter(e)){if(this._lastNode=t,this.position.parent!=t||!this.position.isAtEnd)throw new b("insertcontent-invalid-insertion-position",this);this.position=n,this._setAffectedBoundaries(this.position)}}getSelectionRange(){return this._nodeToSelect?Tl._createOn(this._nodeToSelect):this.model.schema.getNearestSelectionRange(this.position)}getAffectedRange(){return this._affectedStart?new Tl(this._affectedStart,this._affectedEnd):null}destroy(){this._affectedStart&&this._affectedStart.detach(),this._affectedEnd&&this._affectedEnd.detach()}_handleNode(t){if(this.schema.isObject(t))return void this._handleObject(t);let e=this._checkAndAutoParagraphToAllowedPosition(t);e||(e=this._checkAndSplitToAllowedPosition(t),e)?(this._appendToFragment(t),this._firstNode||(this._firstNode=t),this._lastNode=t):this._handleDisallowedNode(t)}_insertPartialFragment(){if(this._documentFragment.isEmpty)return;const t=Jd.fromPosition(this.position,"toNext");this._setAffectedBoundaries(this.position),this._documentFragment.getChild(0)==this._firstNode&&(this.writer.insert(this._firstNode,this.position),this._mergeOnLeft(),this.position=t.toPosition()),this._documentFragment.isEmpty||this.writer.insert(this._documentFragment,this.position),this._documentFragmentPosition=this.writer.createPositionAt(this._documentFragment,0),this.position=t.toPosition(),t.detach()}_handleObject(t){this._checkAndSplitToAllowedPosition(t)?this._appendToFragment(t):this._tryAutoparagraphing(t)}_handleDisallowedNode(t){t.is("element")?this.handleNodes(t.getChildren()):this._tryAutoparagraphing(t)}_appendToFragment(t){if(!this.schema.checkChild(this.position,t))throw new b("insertcontent-wrong-position",this,{node:t,position:this.position});this.writer.insert(t,this._documentFragmentPosition),this._documentFragmentPosition=this._documentFragmentPosition.getShiftedBy(t.offsetSize),this.schema.isObject(t)&&!this.schema.checkChild(this.position,"$text")?this._nodeToSelect=t:this._nodeToSelect=null,this._filterAttributesOf.push(t)}_setAffectedBoundaries(t){this._affectedStart||(this._affectedStart=Jd.fromPosition(t,"toPrevious")),this._affectedEnd&&!this._affectedEnd.isBefore(t)||(this._affectedEnd&&this._affectedEnd.detach(),this._affectedEnd=Jd.fromPosition(t,"toNext"))}_mergeOnLeft(){const t=this._firstNode;if(!(t instanceof kl))return;if(!this._canMergeLeft(t))return;const e=Jd._createBefore(t);e.stickiness="toNext";const n=Jd.fromPosition(this.position,"toNext");this._affectedStart.isEqual(e)&&(this._affectedStart.detach(),this._affectedStart=Jd._createAt(e.nodeBefore,"end","toPrevious")),this._firstNode===this._lastNode&&(this._firstNode=e.nodeBefore,this._lastNode=e.nodeBefore),this.writer.merge(e),e.isEqual(this._affectedEnd)&&this._firstNode===this._lastNode&&(this._affectedEnd.detach(),this._affectedEnd=Jd._createAt(e.nodeBefore,"end","toNext")),this.position=n.toPosition(),n.detach(),this._filterAttributesOf.push(this.position.parent),e.detach()}_mergeOnRight(){const t=this._lastNode;if(!(t instanceof kl))return;if(!this._canMergeRight(t))return;const e=Jd._createAfter(t);if(e.stickiness="toNext",!this.position.isEqual(e))throw new b("insertcontent-invalid-insertion-position",this);this.position=Al._createAt(e.nodeBefore,"end");const n=Jd.fromPosition(this.position,"toPrevious");this._affectedEnd.isEqual(e)&&(this._affectedEnd.detach(),this._affectedEnd=Jd._createAt(e.nodeBefore,"end","toNext")),this._firstNode===this._lastNode&&(this._firstNode=e.nodeBefore,this._lastNode=e.nodeBefore),this.writer.merge(e),e.getShiftedBy(-1).isEqual(this._affectedStart)&&this._firstNode===this._lastNode&&(this._affectedStart.detach(),this._affectedStart=Jd._createAt(e.nodeBefore,0,"toPrevious")),this.position=n.toPosition(),n.detach(),this._filterAttributesOf.push(this.position.parent),e.detach()}_canMergeLeft(t){const e=t.previousSibling;return e instanceof kl&&this.canMergeWith.has(e)&&this.model.schema.checkMerge(e,t)}_canMergeRight(t){const e=t.nextSibling;return e instanceof kl&&this.canMergeWith.has(e)&&this.model.schema.checkMerge(t,e)}_tryAutoparagraphing(t){const e=this.writer.createElement("paragraph");this._getAllowedIn(this.position.parent,e)&&this.schema.checkChild(e,t)&&(e._appendChild(t),this._handleNode(e))}_checkAndAutoParagraphToAllowedPosition(t){if(this.schema.checkChild(this.position.parent,t))return!0;if(!this.schema.checkChild(this.position.parent,"paragraph")||!this.schema.checkChild("paragraph",t))return!1;this._insertPartialFragment();const e=this.writer.createElement("paragraph");return this.writer.insert(e,this.position),this._setAffectedBoundaries(this.position),this._lastAutoParagraph=e,this.position=this.writer.createPositionAt(e,0),!0}_checkAndSplitToAllowedPosition(t){const e=this._getAllowedIn(this.position.parent,t);if(!e)return!1;for(e!=this.position.parent&&this._insertPartialFragment();e!=this.position.parent;)if(this.position.isAtStart){const t=this.position.parent;this.position=this.writer.createPositionBefore(t),t.isEmpty&&t.parent===e&&this.writer.remove(t)}else if(this.position.isAtEnd)this.position=this.writer.createPositionAfter(this.position.parent);else{const t=this.writer.createPositionAfter(this.position.parent);this._setAffectedBoundaries(this.position),this.writer.split(this.position),this.position=t,this.canMergeWith.add(this.position.nodeAfter)}return!0}_getAllowedIn(t,e){return this.schema.checkChild(t,e)?t:this.schema.isLimit(t)?null:this._getAllowedIn(t.parent,e)}}function Kh(t,e,n="auto"){const o=t.getSelectedElement();if(o&&e.schema.isObject(o)&&!e.schema.isInline(o))return"before"==n||"after"==n?e.createRange(e.createPositionAt(o,n)):e.createRangeOn(o);const i=yi(t.getSelectedBlocks());if(!i)return e.createRange(t.focus);if(i.isEmpty)return e.createRange(e.createPositionAt(i,0));const r=e.createPositionAfter(i);return t.focus.isTouching(r)?e.createRange(r):e.createRange(e.createPositionBefore(i))}function Zh(t,e,n,o={}){if(!t.schema.isObject(e))throw new b("insertobject-element-not-an-object",t,{object:e});const i=n||t.document.selection;let r=i;o.findOptimalPosition&&t.schema.isBlock(e)&&(r=t.createSelection(Kh(i,t,o.findOptimalPosition)));const s=yi(i.getSelectedBlocks()),a={};return s&&Object.assign(a,t.schema.getAttributesWithProperty(s,"copyOnReplace",!0)),t.change((n=>{r.isCollapsed||t.deleteContent(r,{doNotAutoparagraph:!0});let i=e;const s=r.anchor.parent;!t.schema.checkChild(s,e)&&t.schema.checkChild(s,"paragraph")&&t.schema.checkChild("paragraph",e)&&(i=n.createElement("paragraph"),n.insert(e,i)),t.schema.setAllowedAttributes(i,a,n);const l=t.insertContent(i,r);return l.isCollapsed||o.setSelection&&function(t,e,n,o){const i=t.model;if("on"==n)return void t.setSelection(e,"on");if("after"!=n)throw new b("insertobject-invalid-place-parameter-value",i);let r=e.nextSibling;if(i.schema.isInline(e))return void t.setSelection(e,"after");const 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t=(t,e)=>{this.isOpen&&(this.isOpen=!1,e())};this.keystrokes.set("arrowdown",((t,e)=>{this.buttonView.isEnabled&&!this.isOpen&&(this.isOpen=!0,e())})),this.keystrokes.set("arrowright",((t,e)=>{this.isOpen&&e()})),this.keystrokes.set("arrowleft",t),this.keystrokes.set("esc",t)}focus(){this.buttonView.focus()}get _panelPositions(){const{south:t,north:e,southEast:n,southWest:o,northEast:i,northWest:r,southMiddleEast:s,southMiddleWest:a,northMiddleEast:l,northMiddleWest:c}=Kg.defaultPanelPositions;return"rtl"!==this.locale.uiLanguageDirection?[n,o,s,a,t,i,r,l,c,e]:[o,n,a,s,t,r,i,c,l,e]}};let Zg=Kg;Zg.defaultPanelPositions={south:(t,e)=>({top:t.bottom,left:t.left-(e.width-t.width)/2,name:"s"}),southEast:t=>({top:t.bottom,left:t.left,name:"se"}),southWest:(t,e)=>({top:t.bottom,left:t.left-e.width+t.width,name:"sw"}),southMiddleEast:(t,e)=>({top:t.bottom,left:t.left-(e.width-t.width)/4,name:"sme"}),southMiddleWest:(t,e)=>({top:t.bottom,left:t.left-3*(e.width-t.width)/4,name:"smw"}),north:(t,e)=>({top:t.top-e.height,left:t.left-(e.width-t.width)/2,name:"n"}),northEast:(t,e)=>({top:t.top-e.height,left:t.left,name:"ne"}),northWest:(t,e)=>({top:t.top-e.height,left:t.left-e.width+t.width,name:"nw"}),northMiddleEast:(t,e)=>({top:t.top-e.height,left:t.left-(e.width-t.width)/4,name:"nme"}),northMiddleWest:(t,e)=>({top:t.top-e.height,left:t.left-3*(e.width-t.width)/4,name:"nmw"})},Zg._getOptimalPosition=Jo;class Jg extends ig{constructor(t){super(t);const 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xi,this.setTemplate({tag:"div",attributes:{class:["ck","ck-splitbutton",e.to("class"),e.if("isVisible","ck-hidden",(t=>!t)),this.arrowView.bindTemplate.if("isOn","ck-splitbutton_open")]},children:this.children})}render(){super.render(),this.children.add(this.actionView),this.children.add(this.arrowView),this.focusTracker.add(this.actionView.element),this.focusTracker.add(this.arrowView.element),this.keystrokes.listenTo(this.element),this.keystrokes.set("arrowright",((t,e)=>{this.focusTracker.focusedElement===this.actionView.element&&(this.arrowView.focus(),e())})),this.keystrokes.set("arrowleft",((t,e)=>{this.focusTracker.focusedElement===this.arrowView.element&&(this.actionView.focus(),e())}))}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this.actionView.focus()}_createActionView(){const t=new Rg;return t.bind("icon","isEnabled","isOn","isToggleable","keystroke","label","tabindex","tooltip","tooltipPosition","type","withText").to(this),t.extendTemplate({attributes:{class:"ck-splitbutton__action"}}),t.delegate("execute").to(this),t}_createArrowView(){const t=new Rg,e=t.bindTemplate;return t.icon=Yg,t.extendTemplate({attributes:{class:["ck-splitbutton__arrow"],"data-cke-tooltip-disabled":e.to("isOn"),"aria-haspopup":!0,"aria-expanded":e.to("isOn",(t=>String(t)))}}),t.bind("isEnabled").to(this),t.bind("label").to(this),t.bind("tooltip").to(this),t.delegate("execute").to(this,"open"),t}}class nm{constructor(t){if(this.focusables=t.focusables,this.focusTracker=t.focusTracker,this.keystrokeHandler=t.keystrokeHandler,this.actions=t.actions,t.actions&&t.keystrokeHandler)for(const e in t.actions){let n=t.actions[e];"string"==typeof n&&(n=[n]);for(const o of n)t.keystrokeHandler.set(o,((t,n)=>{this[e](),n()}))}}get first(){return this.focusables.find(om)||null}get last(){return this.focusables.filter(om).slice(-1)[0]||null}get next(){return this._getFocusableItem(1)}get previous(){return this._getFocusableItem(-1)}get current(){let t=null;return null===this.focusTracker.focusedElement?null:(this.focusables.find(((e,n)=>{const o=e.element===this.focusTracker.focusedElement;return o&&(t=n),o})),t)}focusFirst(){this._focus(this.first)}focusLast(){this._focus(this.last)}focusNext(){this._focus(this.next)}focusPrevious(){this._focus(this.previous)}_focus(t){t&&t.focus()}_getFocusableItem(t){const e=this.current,n=this.focusables.length;if(!n)return null;if(null===e)return this[1===t?"first":"last"];let o=(e+n+t)%n;do{const e=this.focusables.get(o);if(om(e))return e;o=(o+n+t)%n}while(o!==e);return null}}function om(t){return!(!t.focus||!Ko(t.element))}class im extends ig{constructor(t){super(t),this.setTemplate({tag:"span",attributes:{class:["ck","ck-toolbar__separator"]}})}}class rm extends ig{constructor(t){super(t),this.setTemplate({tag:"span",attributes:{class:["ck","ck-toolbar__line-break"]}})}}function sm(t){return Array.isArray(t)?{items:t,removeItems:[]}:t?Object.assign({items:[],removeItems:[]},t):{items:[],removeItems:[]}}var am=n(5542),lm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(am.Z,lm);am.Z.locals;const{threeVerticalDots:cm}=Ju,dm={alignLeft:Ju.alignLeft,bold:Ju.bold,importExport:Ju.importExport,paragraph:Ju.paragraph,plus:Ju.plus,text:Ju.text,threeVerticalDots:Ju.threeVerticalDots};class hm extends ig{constructor(t,e){super(t);const n=this.bindTemplate,o=this.t;this.options=e||{},this.set("ariaLabel",o("Editor toolbar")),this.set("maxWidth","auto"),this.items=this.createCollection(),this.focusTracker=new xi,this.keystrokes=new Ei,this.set("class",void 0),this.set("isCompact",!1),this.itemsView=new um(t),this.children=this.createCollection(),this.children.add(this.itemsView),this.focusables=this.createCollection();const i="rtl"===t.uiLanguageDirection;this._focusCycler=new nm({focusables:this.focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:[i?"arrowright":"arrowleft","arrowup"],focusNext:[i?"arrowleft":"arrowright","arrowdown"]}});const r=["ck","ck-toolbar",n.to("class"),n.if("isCompact","ck-toolbar_compact")];var s;this.options.shouldGroupWhenFull&&this.options.isFloating&&r.push("ck-toolbar_floating"),this.setTemplate({tag:"div",attributes:{class:r,role:"toolbar","aria-label":n.to("ariaLabel"),style:{maxWidth:n.to("maxWidth")}},children:this.children,on:{mousedown:(s=this,s.bindTemplate.to((t=>{t.target===s.element&&t.preventDefault()})))}}),this._behavior=this.options.shouldGroupWhenFull?new mm(this):new gm(this)}render(){super.render();for(const t of this.items)this.focusTracker.add(t.element);this.items.on("add",((t,e)=>{this.focusTracker.add(e.element)})),this.items.on("remove",((t,e)=>{this.focusTracker.remove(e.element)})),this.keystrokes.listenTo(this.element),this._behavior.render(this)}destroy(){return this._behavior.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy(),super.destroy()}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}fillFromConfig(t,e,n){this.items.addMany(this._buildItemsFromConfig(t,e,n))}_buildItemsFromConfig(t,e,n){const o=sm(t),i=n||o.removeItems;return this._cleanItemsConfiguration(o.items,e,i).map((t=>V(t)?this._createNestedToolbarDropdown(t,e,i):"|"===t?new im:"-"===t?new rm:e.create(t))).filter((t=>!!t))}_cleanItemsConfiguration(t,e,n){const o=t.filter(((t,o,i)=>"|"===t||-1===n.indexOf(t)&&("-"===t?!this.options.shouldGroupWhenFull||(k("toolbarview-line-break-ignored-when-grouping-items",i),!1):!(!V(t)&&!e.has(t))||(k("toolbarview-item-unavailable",{item:t}),!1))));return this._cleanSeparatorsAndLineBreaks(o)}_cleanSeparatorsAndLineBreaks(t){const e=t=>"-"!==t&&"|"!==t,n=t.length,o=t.findIndex(e);if(-1===o)return[];const i=n-t.slice().reverse().findIndex(e);return t.slice(o,i).filter(((t,n,o)=>{if(e(t))return!0;return!(n>0&&o[n-1]===t)}))}_createNestedToolbarDropdown(t,e,n){let{label:o,icon:i,items:r,tooltip:s=!0,withText:a=!1}=t;if(r=this._cleanItemsConfiguration(r,e,n),!r.length)return null;const l=ym(this.locale);return o||k("toolbarview-nested-toolbar-dropdown-missing-label",t),l.class="ck-toolbar__nested-toolbar-dropdown",l.buttonView.set({label:o,tooltip:s,withText:!!a}),!1!==i?l.buttonView.icon=dm[i]||i||cm:l.buttonView.withText=!0,xm(l,(()=>l.toolbarView._buildItemsFromConfig(r,e,n))),l}}class um extends ig{constructor(t){super(t),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-toolbar__items"]},children:this.children})}}class gm{constructor(t){const e=t.bindTemplate;t.set("isVertical",!1),t.itemsView.children.bindTo(t.items).using((t=>t)),t.focusables.bindTo(t.items).using((t=>t)),t.extendTemplate({attributes:{class:[e.if("isVertical","ck-toolbar_vertical")]}})}render(){}destroy(){}}class mm{constructor(t){this.resizeObserver=null,this.cachedPadding=null,this.shouldUpdateGroupingOnNextResize=!1,this.view=t,this.viewChildren=t.children,this.viewFocusables=t.focusables,this.viewItemsView=t.itemsView,this.viewFocusTracker=t.focusTracker,this.viewLocale=t.locale,this.ungroupedItems=t.createCollection(),this.groupedItems=t.createCollection(),this.groupedItemsDropdown=this._createGroupedItemsDropdown(),t.itemsView.children.bindTo(this.ungroupedItems).using((t=>t)),this.ungroupedItems.on("change",this._updateFocusCycleableItems.bind(this)),t.children.on("change",this._updateFocusCycleableItems.bind(this)),t.items.on("change",((t,e)=>{const n=e.index,o=Array.from(e.added);for(const t of e.removed)n>=this.ungroupedItems.length?this.groupedItems.remove(t):this.ungroupedItems.remove(t);for(let t=n;t<n+o.length;t++){const e=o[t-n];t>this.ungroupedItems.length?this.groupedItems.add(e,t-this.ungroupedItems.length):this.ungroupedItems.add(e,t)}this._updateGrouping()})),t.extendTemplate({attributes:{class:["ck-toolbar_grouping"]}})}render(t){this.viewElement=t.element,this._enableGroupingOnResize(),this._enableGroupingOnMaxWidthChange(t)}destroy(){this.groupedItemsDropdown.destroy(),this.resizeObserver.destroy()}_updateGrouping(){if(!this.viewElement.ownerDocument.body.contains(this.viewElement))return;if(!Ko(this.viewElement))return void(this.shouldUpdateGroupingOnNextResize=!0);const t=this.groupedItems.length;let e;for(;this._areItemsOverflowing;)this._groupLastItem(),e=!0;if(!e&&this.groupedItems.length){for(;this.groupedItems.length&&!this._areItemsOverflowing;)this._ungroupFirstItem();this._areItemsOverflowing&&this._groupLastItem()}this.groupedItems.length!==t&&this.view.fire("groupedItemsUpdate")}get _areItemsOverflowing(){if(!this.ungroupedItems.length)return!1;const t=this.viewElement,e=this.viewLocale.uiLanguageDirection,n=new Fo(t.lastChild),o=new Fo(t);if(!this.cachedPadding){const n=Io.window.getComputedStyle(t),o="ltr"===e?"paddingRight":"paddingLeft";this.cachedPadding=Number.parseInt(n[o])}return"ltr"===e?n.right>o.right-this.cachedPadding:n.left<o.left+this.cachedPadding}_enableGroupingOnResize(){let t;this.resizeObserver=new jo(this.viewElement,(e=>{t&&t===e.contentRect.width&&!this.shouldUpdateGroupingOnNextResize||(this.shouldUpdateGroupingOnNextResize=!1,this._updateGrouping(),t=e.contentRect.width)})),this._updateGrouping()}_enableGroupingOnMaxWidthChange(t){t.on("change:maxWidth",(()=>{this._updateGrouping()}))}_groupLastItem(){this.groupedItems.length||(this.viewChildren.add(new im),this.viewChildren.add(this.groupedItemsDropdown),this.viewFocusTracker.add(this.groupedItemsDropdown.element)),this.groupedItems.add(this.ungroupedItems.remove(this.ungroupedItems.last),0)}_ungroupFirstItem(){this.ungroupedItems.add(this.groupedItems.remove(this.groupedItems.first)),this.groupedItems.length||(this.viewChildren.remove(this.groupedItemsDropdown),this.viewChildren.remove(this.viewChildren.last),this.viewFocusTracker.remove(this.groupedItemsDropdown.element))}_createGroupedItemsDropdown(){const t=this.viewLocale,e=t.t,n=ym(t);return n.class="ck-toolbar__grouped-dropdown",n.panelPosition="ltr"===t.uiLanguageDirection?"sw":"se",xm(n,this.groupedItems),n.buttonView.set({label:e("Show more items"),tooltip:!0,tooltipPosition:"rtl"===t.uiLanguageDirection?"se":"sw",icon:cm}),n}_updateFocusCycleableItems(){this.viewFocusables.clear(),this.ungroupedItems.map((t=>{this.viewFocusables.add(t)})),this.groupedItems.length&&this.viewFocusables.add(this.groupedItemsDropdown)}}var pm=n(1046),fm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(pm.Z,fm);pm.Z.locals;class bm extends ig{constructor(t){super(t);const e=this.bindTemplate;this.items=this.createCollection(),this.focusTracker=new xi,this.keystrokes=new Ei,this._focusCycler=new nm({focusables:this.items,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"arrowup",focusNext:"arrowdown"}}),this.set("ariaLabel",void 0),this.setTemplate({tag:"ul",attributes:{class:["ck","ck-reset","ck-list"],"aria-label":e.to("ariaLabel")},children:this.items})}render(){super.render();for(const t of this.items)this.focusTracker.add(t.element);this.items.on("add",((t,e)=>{this.focusTracker.add(e.element)})),this.items.on("remove",((t,e)=>{this.focusTracker.remove(e.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}}class km extends ig{constructor(t){super(t);const e=this.bindTemplate;this.set("isVisible",!0),this.children=this.createCollection(),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__item",e.if("isVisible","ck-hidden",(t=>!t))]},children:this.children})}focus(){this.children.first.focus()}}class wm extends ig{constructor(t){super(t),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__separator"]}})}}var _m=n(7339),Am={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(_m.Z,Am);_m.Z.locals;var Cm=n(3949),vm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Cm.Z,vm);Cm.Z.locals;function ym(t,e=Qg){const n=new e(t),o=new Jg(t),i=new Zg(t,n,o);return n.bind("isEnabled").to(i),n instanceof em?n.arrowView.bind("isOn").to(i,"isOpen"):n.bind("isOn").to(i,"isOpen"),function(t){(function(t){t.on("render",(()=>{Yu({emitter:t,activator:()=>t.isOpen,callback:()=>{t.isOpen=!1},contextElements:[t.element]})}))})(t),function(t){t.on("execute",(e=>{e.source instanceof Og||(t.isOpen=!1)}))}(t),function(t){t.focusTracker.on("change:isFocused",((e,n,o)=>{t.isOpen&&!o&&(t.isOpen=!1)}))}(t),function(t){t.keystrokes.set("arrowdown",((e,n)=>{t.isOpen&&(t.panelView.focus(),n())})),t.keystrokes.set("arrowup",((e,n)=>{t.isOpen&&(t.panelView.focusLast(),n())}))}(t),function(t){t.on("change:isOpen",((e,n,o)=>{if(o)return;const i=t.panelView.element;i&&i.contains(Io.document.activeElement)&&t.buttonView.focus()}))}(t),function(t){t.on("change:isOpen",((e,n,o)=>{o&&t.panelView.focus()}),{priority:"low"})}(t)}(i),i}function xm(t,e,n={}){t.extendTemplate({attributes:{class:["ck-toolbar-dropdown"]}}),t.isOpen?Em(t,e,n):t.once("change:isOpen",(()=>Em(t,e,n)),{priority:"highest"}),n.enableActiveItemFocusOnDropdownOpen&&Sm(t,(()=>t.toolbarView.items.find((t=>t.isOn))))}function Em(t,e,n){const o=t.locale,i=o.t,r=t.toolbarView=new hm(o),s="function"==typeof e?e():e;r.ariaLabel=n.ariaLabel||i("Dropdown toolbar"),n.maxWidth&&(r.maxWidth=n.maxWidth),n.class&&(r.class=n.class),n.isCompact&&(r.isCompact=n.isCompact),n.isVertical&&(r.isVertical=!0),s instanceof eg?r.items.bindTo(s).using((t=>t)):r.items.addMany(s),t.panelView.children.add(r),r.items.delegate("execute").to(t)}function Tm(t,e,n={}){t.isOpen?Dm(t,e,n):t.once("change:isOpen",(()=>Dm(t,e,n)),{priority:"highest"}),Sm(t,(()=>t.listView.items.find((t=>t instanceof km&&t.children.first.isOn))))}function Dm(t,e,n){const o=t.locale,i=t.listView=new bm(o),r="function"==typeof e?e():e;i.ariaLabel=n.ariaLabel,i.items.bindTo(r).using((t=>{if("separator"===t.type)return new wm(o);if("button"===t.type||"switchbutton"===t.type){const e=new km(o);let n;return n="button"===t.type?new Rg(o):new Og(o),n.bind(...Object.keys(t.model)).to(t.model),n.delegate("execute").to(e),e.children.add(n),e}return null})),t.panelView.children.add(i),i.items.delegate("execute").to(t)}function Sm(t,e){t.on("change:isOpen",(()=>{if(!t.isOpen)return;const n=e();n&&("function"==typeof n.focus?n.focus():k("ui-dropdown-focus-child-on-open-child-missing-focus",{view:n}))}),{priority:m.low-10})}var Bm=n(8793),Im={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Bm.Z,Im);Bm.Z.locals;var Pm=Object.defineProperty,Rm=Object.getOwnPropertySymbols,zm=Object.prototype.hasOwnProperty,Vm=Object.prototype.propertyIsEnumerable,Om=(t,e,n)=>e in 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e=Lm.defaultPositions,n=Object.assign({},{element:this.element,positions:[e.southArrowNorth,e.southArrowNorthMiddleWest,e.southArrowNorthMiddleEast,e.southArrowNorthWest,e.southArrowNorthEast,e.northArrowSouth,e.northArrowSouthMiddleWest,e.northArrowSouthMiddleEast,e.northArrowSouthWest,e.northArrowSouthEast,e.viewportStickyNorth],limiter:Mm,fitInViewport:!0},t),o=Lm._getOptimalPosition(n),i=parseInt(o.left),r=parseInt(o.top),s=o.name,a=o.config||{},{withArrow:l=!0}=a;this.top=r,this.left=i,this.position=s,this.withArrow=l}pin(t){this.unpin(),this._pinWhenIsVisibleCallback=()=>{this.isVisible?this._startPinning(t):this._stopPinning()},this._startPinning(t),this.listenTo(this,"change:isVisible",this._pinWhenIsVisibleCallback)}unpin(){this._pinWhenIsVisibleCallback&&(this._stopPinning(),this.stopListening(this,"change:isVisible",this._pinWhenIsVisibleCallback),this._pinWhenIsVisibleCallback=null,this.hide())}_startPinning(t){this.attachTo(t);const e=jm(t.target),n=t.limiter?jm(t.limiter):Mm;this.listenTo(Io.document,"scroll",((o,i)=>{const r=i.target,s=e&&r.contains(e),a=n&&r.contains(n);!s&&!a&&e&&n||this.attachTo(t)}),{useCapture:!0}),this.listenTo(Io.window,"resize",(()=>{this.attachTo(t)}))}_stopPinning(){this.stopListening(Io.document,"scroll"),this.stopListening(Io.window,"resize")}};let Hm=Lm;function jm(t){return _o(t)?t:zo(t)?t.commonAncestorContainer:"function"==typeof t?jm(t()):null}function qm(t={}){const{sideOffset:e=Hm.arrowSideOffset,heightOffset:n=Hm.arrowHeightOffset,stickyVerticalOffset:o=Hm.stickyVerticalOffset,config:i}=t;return{northWestArrowSouthWest:(t,n)=>Fm({top:r(t,n),left:t.left-e,name:"arrow_sw"},i&&{config:i}),northWestArrowSouthMiddleWest:(t,n)=>Fm({top:r(t,n),left:t.left-.25*n.width-e,name:"arrow_smw"},i&&{config:i}),northWestArrowSouth:(t,e)=>Fm({top:r(t,e),left:t.left-e.width/2,name:"arrow_s"},i&&{config:i}),northWestArrowSouthMiddleEast:(t,n)=>Fm({top:r(t,n),left:t.left-.75*n.width+e,name:"arrow_sme"},i&&{config:i}),northWestArrowSouthEast:(t,n)=>Fm({top:r(t,n),left:t.left-n.width+e,name:"arrow_se"},i&&{config:i}),northArrowSouthWest:(t,n)=>Fm({top:r(t,n),left:t.left+t.width/2-e,name:"arrow_sw"},i&&{config:i}),northArrowSouthMiddleWest:(t,n)=>Fm({top:r(t,n),left:t.left+t.width/2-.25*n.width-e,name:"arrow_smw"},i&&{config:i}),northArrowSouth:(t,e)=>Fm({top:r(t,e),left:t.left+t.width/2-e.width/2,name:"arrow_s"},i&&{config:i}),northArrowSouthMiddleEast:(t,n)=>Fm({top:r(t,n),left:t.left+t.width/2-.75*n.width+e,name:"arrow_sme"},i&&{config:i}),northArrowSouthEast:(t,n)=>Fm({top:r(t,n),left:t.left+t.width/2-n.width+e,name:"arrow_se"},i&&{config:i}),northEastArrowSouthWest:(t,n)=>Fm({top:r(t,n),left:t.right-e,name:"arrow_sw"},i&&{config:i}),northEastArrowSouthMiddleWest:(t,n)=>Fm({top:r(t,n),left:t.right-.25*n.width-e,name:"arrow_smw"},i&&{config:i}),northEastArrowSouth:(t,e)=>Fm({top:r(t,e),left:t.right-e.width/2,name:"arrow_s"},i&&{config:i}),northEastArrowSouthMiddleEast:(t,n)=>Fm({top:r(t,n),left:t.right-.75*n.width+e,name:"arrow_sme"},i&&{config:i}),northEastArrowSouthEast:(t,n)=>Fm({top:r(t,n),left:t.right-n.width+e,name:"arrow_se"},i&&{config:i}),southWestArrowNorthWest:t=>Fm({top:s(t),left:t.left-e,name:"arrow_nw"},i&&{config:i}),southWestArrowNorthMiddleWest:(t,n)=>Fm({top:s(t),left:t.left-.25*n.width-e,name:"arrow_nmw"},i&&{config:i}),southWestArrowNorth:(t,e)=>Fm({top:s(t),left:t.left-e.width/2,name:"arrow_n"},i&&{config:i}),southWestArrowNorthMiddleEast:(t,n)=>Fm({top:s(t),left:t.left-.75*n.width+e,name:"arrow_nme"},i&&{config:i}),southWestArrowNorthEast:(t,n)=>Fm({top:s(t),left:t.left-n.width+e,name:"arrow_ne"},i&&{config:i}),southArrowNorthWest:t=>Fm({top:s(t),left:t.left+t.width/2-e,name:"arrow_nw"},i&&{config:i}),southArrowNorthMiddleWest:(t,n)=>Fm({top:s(t),left:t.left+t.width/2-.25*n.width-e,name:"arrow_nmw"},i&&{config:i}),southArrowNorth:(t,e)=>Fm({top:s(t),left:t.left+t.width/2-e.width/2,name:"arrow_n"},i&&{config:i}),southArrowNorthMiddleEast:(t,n)=>Fm({top:s(t),left:t.left+t.width/2-.75*n.width+e,name:"arrow_nme"},i&&{config:i}),southArrowNorthEast:(t,n)=>Fm({top:s(t),left:t.left+t.width/2-n.width+e,name:"arrow_ne"},i&&{config:i}),southEastArrowNorthWest:t=>Fm({top:s(t),left:t.right-e,name:"arrow_nw"},i&&{config:i}),southEastArrowNorthMiddleWest:(t,n)=>Fm({top:s(t),left:t.right-.25*n.width-e,name:"arrow_nmw"},i&&{config:i}),southEastArrowNorth:(t,e)=>Fm({top:s(t),left:t.right-e.width/2,name:"arrow_n"},i&&{config:i}),southEastArrowNorthMiddleEast:(t,n)=>Fm({top:s(t),left:t.right-.75*n.width+e,name:"arrow_nme"},i&&{config:i}),southEastArrowNorthEast:(t,n)=>Fm({top:s(t),left:t.right-n.width+e,name:"arrow_ne"},i&&{config:i}),westArrowEast:(t,e)=>Fm({top:t.top+t.height/2-e.height/2,left:t.left-e.width-n,name:"arrow_e"},i&&{config:i}),eastArrowWest:(t,e)=>Fm({top:t.top+t.height/2-e.height/2,left:t.right+n,name:"arrow_w"},i&&{config:i}),viewportStickyNorth:(t,e,n)=>t.getIntersection(n)?{top:n.top+o,left:t.left+t.width/2-e.width/2,name:"arrowless",config:Fm({withArrow:!1},i)}:null};function r(t,e){return t.top-e.height-n}function s(t){return t.bottom+n}}Hm.arrowSideOffset=25,Hm.arrowHeightOffset=10,Hm.stickyVerticalOffset=20,Hm._getOptimalPosition=Jo,Hm.defaultPositions=qm();var Wm=n(3332),Um={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Wm.Z,Um);Wm.Z.locals;const $m="ck-tooltip",Gm=class extends(To()){constructor(t){if(super(),this._currentElementWithTooltip=null,this._currentTooltipPosition=null,this._resizeObserver=null,Gm._editors.add(t),Gm._instance)return Gm._instance;Gm._instance=this,this.tooltipTextView=new ig(t.locale),this.tooltipTextView.set("text",""),this.tooltipTextView.setTemplate({tag:"span",attributes:{class:["ck","ck-tooltip__text"]},children:[{text:this.tooltipTextView.bindTemplate.to("text")}]}),this.balloonPanelView=new Hm(t.locale),this.balloonPanelView.class=$m,this.balloonPanelView.content.add(this.tooltipTextView),this._pinTooltipDebounced=Ra(this._pinTooltip,600),this.listenTo(Io.document,"mouseenter",this._onEnterOrFocus.bind(this),{useCapture:!0}),this.listenTo(Io.document,"mouseleave",this._onLeaveOrBlur.bind(this),{useCapture:!0}),this.listenTo(Io.document,"focus",this._onEnterOrFocus.bind(this),{useCapture:!0}),this.listenTo(Io.document,"blur",this._onLeaveOrBlur.bind(this),{useCapture:!0}),this.listenTo(Io.document,"scroll",this._onScroll.bind(this),{useCapture:!0}),this._watchdogExcluded=!0}destroy(t){const e=t.ui.view&&t.ui.view.body;Gm._editors.delete(t),this.stopListening(t.ui),e&&e.has(this.balloonPanelView)&&e.remove(this.balloonPanelView),Gm._editors.size||(this._unpinTooltip(),this.balloonPanelView.destroy(),this.stopListening(),Gm._instance=null)}static getPositioningFunctions(t){const e=Gm.defaultBalloonPositions;return{s:[e.southArrowNorth,e.southArrowNorthEast,e.southArrowNorthWest],n:[e.northArrowSouth],e:[e.eastArrowWest],w:[e.westArrowEast],sw:[e.southArrowNorthEast],se:[e.southArrowNorthWest]}[t]}_onEnterOrFocus(t,{target:e}){const n=Zm(e);var o;n&&(n!==this._currentElementWithTooltip&&(this._unpinTooltip(),this._pinTooltipDebounced(n,{text:(o=n).dataset.ckeTooltipText,position:o.dataset.ckeTooltipPosition||"s",cssClass:o.dataset.ckeTooltipClass||""})))}_onLeaveOrBlur(t,{target:e,relatedTarget:n}){if("mouseleave"===t.name){if(!_o(e))return;if(this._currentElementWithTooltip&&e!==this._currentElementWithTooltip)return;const t=Zm(e),o=Zm(n);t&&t!==o&&this._unpinTooltip()}else{if(this._currentElementWithTooltip&&e!==this._currentElementWithTooltip)return;this._unpinTooltip()}}_onScroll(t,{target:e}){this._currentElementWithTooltip&&(e.contains(this.balloonPanelView.element)&&e.contains(this._currentElementWithTooltip)||this._unpinTooltip())}_pinTooltip(t,{text:e,position:n,cssClass:o}){const i=yi(Gm._editors.values()).ui.view.body;i.has(this.balloonPanelView)||i.add(this.balloonPanelView),this.tooltipTextView.text=e,this.balloonPanelView.pin({target:t,positions:Gm.getPositioningFunctions(n)}),this._resizeObserver=new jo(t,(()=>{Ko(t)||this._unpinTooltip()})),this.balloonPanelView.class=[$m,o].filter((t=>t)).join(" ");for(const t of Gm._editors)this.listenTo(t.ui,"update",this._updateTooltipPosition.bind(this),{priority:"low"});this._currentElementWithTooltip=t,this._currentTooltipPosition=n}_unpinTooltip(){this._pinTooltipDebounced.cancel(),this.balloonPanelView.unpin();for(const t of Gm._editors)this.stopListening(t.ui,"update");this._currentElementWithTooltip=null,this._currentTooltipPosition=null,this._resizeObserver&&this._resizeObserver.destroy()}_updateTooltipPosition(){Ko(this._currentElementWithTooltip)?this.balloonPanelView.pin({target:this._currentElementWithTooltip,positions:Gm.getPositioningFunctions(this._currentTooltipPosition)}):this._unpinTooltip()}};let Km=Gm;function Zm(t){return _o(t)?t.closest("[data-cke-tooltip-text]:not([data-cke-tooltip-disabled])"):null}Km.defaultBalloonPositions=qm({heightOffset:5,sideOffset:13}),Km._editors=new Set,Km._instance=null;class Jm extends(j()){constructor(t){super(),this.isReady=!1,this._editableElementsMap=new Map,this._focusableToolbarDefinitions=[],this.editor=t,this.componentFactory=new Wg(t),this.focusTracker=new xi,this.tooltipManager=new Km(t),this.set("viewportOffset",this._readViewportOffsetFromConfig()),this.once("ready",(()=>{this.isReady=!0})),this.listenTo(t.editing.view.document,"layoutChanged",(()=>this.update())),this._initFocusTracking()}get element(){return null}update(){this.fire("update")}destroy(){this.stopListening(),this.focusTracker.destroy(),this.tooltipManager.destroy(this.editor);for(const t of this._editableElementsMap.values())t.ckeditorInstance=null,this.editor.keystrokes.stopListening(t);this._editableElementsMap=new Map,this._focusableToolbarDefinitions=[]}setEditableElement(t,e){this._editableElementsMap.set(t,e),e.ckeditorInstance||(e.ckeditorInstance=this.editor),this.focusTracker.add(e);const n=()=>{this.editor.editing.view.getDomRoot(t)||this.editor.keystrokes.listenTo(e)};this.isReady?n():this.once("ready",n)}removeEditableElement(t){const e=this._editableElementsMap.get(t);e&&(this._editableElementsMap.delete(t),this.editor.keystrokes.stopListening(e),this.focusTracker.remove(e),e.ckeditorInstance=null)}getEditableElement(t="main"){return this._editableElementsMap.get(t)}getEditableElementsNames(){return this._editableElementsMap.keys()}addToolbar(t,e={}){t.isRendered?(this.focusTracker.add(t.element),this.editor.keystrokes.listenTo(t.element)):t.once("render",(()=>{this.focusTracker.add(t.element),this.editor.keystrokes.listenTo(t.element)})),this._focusableToolbarDefinitions.push({toolbarView:t,options:e})}get _editableElements(){return console.warn("editor-ui-deprecated-editable-elements: The EditorUI#_editableElements property has been deprecated and will be removed in the near future.",{editorUI:this}),this._editableElementsMap}_readViewportOffsetFromConfig(){const t=this.editor,e=t.config.get("ui.viewportOffset");if(e)return e;const n=t.config.get("toolbar.viewportTopOffset");return n?(console.warn("editor-ui-deprecated-viewport-offset-config: The `toolbar.vieportTopOffset` configuration option is deprecated. It will be removed from future CKEditor versions. Use `ui.viewportOffset.top` instead."),{top:n}):{top:0}}_initFocusTracking(){const t=this.editor,e=t.editing.view;let n,o;t.keystrokes.set("Alt+F10",((t,i)=>{const r=this.focusTracker.focusedElement;Array.from(this._editableElementsMap.values()).includes(r)&&!Array.from(e.domRoots.values()).includes(r)&&(n=r);const s=this._getCurrentFocusedToolbarDefinition();s&&o||(o=this._getFocusableCandidateToolbarDefinitions());for(let t=0;t<o.length;t++){const t=o.shift();if(o.push(t),t!==s&&this._focusFocusableCandidateToolbar(t)){s&&s.options.afterBlur&&s.options.afterBlur();break}}i()})),t.keystrokes.set("Esc",((e,o)=>{const i=this._getCurrentFocusedToolbarDefinition();i&&(n?(n.focus(),n=null):t.editing.view.focus(),i.options.afterBlur&&i.options.afterBlur(),o())}))}_getFocusableCandidateToolbarDefinitions(){const t=[];for(const e of this._focusableToolbarDefinitions){const{toolbarView:n,options:o}=e;(Ko(n.element)||o.beforeFocus)&&t.push(e)}return t.sort(((t,e)=>Ym(t)-Ym(e))),t}_getCurrentFocusedToolbarDefinition(){for(const t of this._focusableToolbarDefinitions)if(t.toolbarView.element&&t.toolbarView.element.contains(this.focusTracker.focusedElement))return t;return null}_focusFocusableCandidateToolbar(t){const{toolbarView:e,options:{beforeFocus:n}}=t;return n&&n(),!!Ko(e.element)&&(e.focus(),!0)}}function Ym(t){const{toolbarView:e,options:n}=t;let o=10;return Ko(e.element)&&o--,n.isContextual&&o--,o}var Qm=n(9688),Xm={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Qm.Z,Xm);Qm.Z.locals;class tp extends ig{constructor(t){super(t),this.body=new Eg(t)}render(){super.render(),this.body.attachToDom()}destroy(){return this.body.detachFromDom(),super.destroy()}}var ep=n(3662),np={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(ep.Z,np);ep.Z.locals;class op extends ig{constructor(t){super(t),this.set("text",void 0),this.set("for",void 0),this.id=`ck-editor__label_${g()}`;const e=this.bindTemplate;this.setTemplate({tag:"label",attributes:{class:["ck","ck-label"],id:this.id,for:e.to("for")},children:[{text:e.to("text")}]})}}class ip extends ig{constructor(t,e,n){super(t),this.name=null,this.setTemplate({tag:"div",attributes:{class:["ck","ck-content","ck-editor__editable","ck-rounded-corners"],lang:t.contentLanguage,dir:t.contentLanguageDirection}}),this.set("isFocused",!1),this._editableElement=n,this._hasExternalElement=!!this._editableElement,this._editingView=e}render(){super.render(),this._hasExternalElement?this.template.apply(this.element=this._editableElement):this._editableElement=this.element,this.on("change:isFocused",(()=>this._updateIsFocusedClasses())),this._updateIsFocusedClasses()}destroy(){this._hasExternalElement&&this.template.revert(this._editableElement),super.destroy()}get hasExternalElement(){return this._hasExternalElement}_updateIsFocusedClasses(){const t=this._editingView;function e(e){t.change((n=>{const o=t.document.getRoot(e.name);n.addClass(e.isFocused?"ck-focused":"ck-blurred",o),n.removeClass(e.isFocused?"ck-blurred":"ck-focused",o)}))}t.isRenderingInProgress?function n(o){t.once("change:isRenderingInProgress",((t,i,r)=>{r?n(o):e(o)}))}(this):e(this)}}class rp extends ip{constructor(t,e,n,o={}){super(t,e,n);const i=t.t;this.extendTemplate({attributes:{role:"textbox",class:"ck-editor__editable_inline"}}),this._generateLabel=o.label||(()=>i("Editor editing area: %0",this.name))}render(){super.render();const t=this._editingView;t.change((e=>{const n=t.document.getRoot(this.name);e.setAttribute("aria-label",this._generateLabel(this),n)}))}}var sp=n(8847),ap={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(sp.Z,ap);sp.Z.locals;class lp extends ig{constructor(t,e={}){super(t);const n=this.bindTemplate;this.set("label",e.label||""),this.set("class",e.class||null),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-form__header",n.to("class")]},children:this.children});const o=new ig(t);o.setTemplate({tag:"h2",attributes:{class:["ck","ck-form__header__label"]},children:[{text:n.to("label")}]}),this.children.add(o)}}var cp=n(4879),dp={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(cp.Z,dp);cp.Z.locals;class hp extends ig{constructor(t){super(t),this.set("value",void 0),this.set("id",void 0),this.set("placeholder",void 0),this.set("isReadOnly",!1),this.set("hasError",!1),this.set("ariaDescribedById",void 0),this.focusTracker=new xi,this.bind("isFocused").to(this.focusTracker),this.set("isEmpty",!0),this.set("inputMode","text");const e=this.bindTemplate;this.setTemplate({tag:"input",attributes:{class:["ck","ck-input",e.if("isFocused","ck-input_focused"),e.if("isEmpty","ck-input-text_empty"),e.if("hasError","ck-error")],id:e.to("id"),placeholder:e.to("placeholder"),readonly:e.to("isReadOnly"),inputmode:e.to("inputMode"),"aria-invalid":e.if("hasError",!0),"aria-describedby":e.to("ariaDescribedById")},on:{input:e.to(((...t)=>{this.fire("input",...t),this._updateIsEmpty()})),change:e.to(this._updateIsEmpty.bind(this))}})}render(){super.render(),this.focusTracker.add(this.element),this._setDomElementValue(this.value),this._updateIsEmpty(),this.on("change:value",((t,e,n)=>{this._setDomElementValue(n),this._updateIsEmpty()}))}destroy(){super.destroy(),this.focusTracker.destroy()}select(){this.element.select()}focus(){this.element.focus()}_updateIsEmpty(){this.isEmpty=!this.element.value}_setDomElementValue(t){this.element.value=t||0===t?t:""}}class up extends hp{constructor(t){super(t),this.extendTemplate({attributes:{type:"text",class:["ck-input-text"]}})}}class gp extends hp{constructor(t,{min:e,max:n,step:o}={}){super(t);const i=this.bindTemplate;this.set("min",e),this.set("max",n),this.set("step",o),this.extendTemplate({attributes:{type:"number",class:["ck-input-number"],min:i.to("min"),max:i.to("max"),step:i.to("step")}})}}var mp=n(2577),pp={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(mp.Z,pp);mp.Z.locals;class fp extends ig{constructor(t,e){super(t);const n=`ck-labeled-field-view-${g()}`,o=`ck-labeled-field-view-status-${g()}`;this.fieldView=e(this,n,o),this.set("label",void 0),this.set("isEnabled",!0),this.set("isEmpty",!0),this.set("isFocused",!1),this.set("errorText",null),this.set("infoText",null),this.set("class",void 0),this.set("placeholder",void 0),this.labelView=this._createLabelView(n),this.statusView=this._createStatusView(o),this.fieldWrapperChildren=this.createCollection([this.fieldView,this.labelView]),this.bind("_statusText").to(this,"errorText",this,"infoText",((t,e)=>t||e));const i=this.bindTemplate;this.setTemplate({tag:"div",attributes:{class:["ck","ck-labeled-field-view",i.to("class"),i.if("isEnabled","ck-disabled",(t=>!t)),i.if("isEmpty","ck-labeled-field-view_empty"),i.if("isFocused","ck-labeled-field-view_focused"),i.if("placeholder","ck-labeled-field-view_placeholder"),i.if("errorText","ck-error")]},children:[{tag:"div",attributes:{class:["ck","ck-labeled-field-view__input-wrapper"]},children:this.fieldWrapperChildren},this.statusView]})}_createLabelView(t){const e=new op(this.locale);return e.for=t,e.bind("text").to(this,"label"),e}_createStatusView(t){const e=new ig(this.locale),n=this.bindTemplate;return e.setTemplate({tag:"div",attributes:{class:["ck","ck-labeled-field-view__status",n.if("errorText","ck-labeled-field-view__status_error"),n.if("_statusText","ck-hidden",(t=>!t))],id:t,role:n.if("errorText","alert")},children:[{text:n.to("_statusText")}]}),e}focus(){this.fieldView.focus()}}function bp(t,e,n){const o=new up(t.locale);return o.set({id:e,ariaDescribedById:n}),o.bind("isReadOnly").to(t,"isEnabled",(t=>!t)),o.bind("hasError").to(t,"errorText",(t=>!!t)),o.on("input",(()=>{t.errorText=null})),t.bind("isEmpty","isFocused","placeholder").to(o),o}function kp(t,e,n){const o=new gp(t.locale);return o.set({id:e,ariaDescribedById:n,inputMode:"numeric"}),o.bind("isReadOnly").to(t,"isEnabled",(t=>!t)),o.bind("hasError").to(t,"errorText",(t=>!!t)),o.on("input",(()=>{t.errorText=null})),t.bind("isEmpty","isFocused","placeholder").to(o),o}function wp(t,e,n){const o=ym(t.locale);return o.set({id:e,ariaDescribedById:n}),o.bind("isEnabled").to(t),o}class _p extends Mi{static get pluginName(){return"Notification"}init(){this.on("show:warning",((t,e)=>{window.alert(e.message)}),{priority:"lowest"})}showSuccess(t,e={}){this._showNotification({message:t,type:"success",namespace:e.namespace,title:e.title})}showInfo(t,e={}){this._showNotification({message:t,type:"info",namespace:e.namespace,title:e.title})}showWarning(t,e={}){this._showNotification({message:t,type:"warning",namespace:e.namespace,title:e.title})}_showNotification(t){const e=t.namespace?`show:${t.type}:${t.namespace}`:`show:${t.type}`;this.fire(e,{message:t.message,type:t.type,title:t.title||""})}}class Ap extends(j()){constructor(t,e){super(),e&&ba(this,e),t&&this.set(t)}}const Cp='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M11.463 5.187a.888.888 0 1 1 1.254 1.255L9.16 10l3.557 3.557a.888.888 0 1 1-1.254 1.255L7.26 10.61a.888.888 0 0 1 .16-1.382l4.043-4.042z"/></svg>';var vp=n(4650),yp={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(vp.Z,yp);vp.Z.locals;var xp=n(7676),Ep={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(xp.Z,Ep);xp.Z.locals;const Tp=Wo("px");class Dp extends Pi{constructor(t){super(t),this._viewToStack=new Map,this._idToStack=new Map,this._view=null,this._rotatorView=null,this._fakePanelsView=null,this.positionLimiter=()=>{const t=this.editor.editing.view,e=t.document.selection.editableElement;return e?t.domConverter.mapViewToDom(e.root):null},this.set("visibleView",null),this.set("_numberOfStacks",0),this.set("_singleViewMode",!1)}static get pluginName(){return"ContextualBalloon"}destroy(){super.destroy(),this._view&&this._view.destroy(),this._rotatorView&&this._rotatorView.destroy(),this._fakePanelsView&&this._fakePanelsView.destroy()}get view(){return this._view||this._createPanelView(),this._view}hasView(t){return Array.from(this._viewToStack.keys()).includes(t)}add(t){if(this._view||this._createPanelView(),this.hasView(t.view))throw new b("contextualballoon-add-view-exist",[this,t]);const e=t.stackId||"main";if(!this._idToStack.has(e))return this._idToStack.set(e,new Map([[t.view,t]])),this._viewToStack.set(t.view,this._idToStack.get(e)),this._numberOfStacks=this._idToStack.size,void(this._visibleStack&&!t.singleViewMode||this.showStack(e));const n=this._idToStack.get(e);t.singleViewMode&&this.showStack(e),n.set(t.view,t),this._viewToStack.set(t.view,n),n===this._visibleStack&&this._showView(t)}remove(t){if(!this.hasView(t))throw new b("contextualballoon-remove-view-not-exist",[this,t]);const e=this._viewToStack.get(t);this._singleViewMode&&this.visibleView===t&&(this._singleViewMode=!1),this.visibleView===t&&(1===e.size?this._idToStack.size>1?this._showNextStack():(this.view.hide(),this.visibleView=null,this._rotatorView.hideView()):this._showView(Array.from(e.values())[e.size-2])),1===e.size?(this._idToStack.delete(this._getStackId(e)),this._numberOfStacks=this._idToStack.size):e.delete(t),this._viewToStack.delete(t)}updatePosition(t){t&&(this._visibleStack.get(this.visibleView).position=t),this.view.pin(this._getBalloonPosition()),this._fakePanelsView.updatePosition()}showStack(t){this.visibleStack=t;const e=this._idToStack.get(t);if(!e)throw new b("contextualballoon-showstack-stack-not-exist",this);this._visibleStack!==e&&this._showView(Array.from(e.values()).pop())}_createPanelView(){this._view=new Hm(this.editor.locale),this.editor.ui.view.body.add(this._view),this.editor.ui.focusTracker.add(this._view.element),this._rotatorView=this._createRotatorView(),this._fakePanelsView=this._createFakePanelsView()}get _visibleStack(){return this._viewToStack.get(this.visibleView)}_getStackId(t){return Array.from(this._idToStack.entries()).find((e=>e[1]===t))[0]}_showNextStack(){const t=Array.from(this._idToStack.values());let e=t.indexOf(this._visibleStack)+1;t[e]||(e=0),this.showStack(this._getStackId(t[e]))}_showPrevStack(){const t=Array.from(this._idToStack.values());let e=t.indexOf(this._visibleStack)-1;t[e]||(e=t.length-1),this.showStack(this._getStackId(t[e]))}_createRotatorView(){const t=new Sp(this.editor.locale),e=this.editor.locale.t;return this.view.content.add(t),t.bind("isNavigationVisible").to(this,"_numberOfStacks",this,"_singleViewMode",((t,e)=>!e&&t>1)),t.on("change:isNavigationVisible",(()=>this.updatePosition()),{priority:"low"}),t.bind("counter").to(this,"visibleView",this,"_numberOfStacks",((t,n)=>{if(n<2)return"";const o=Array.from(this._idToStack.values()).indexOf(this._visibleStack)+1;return e("%0 of %1",[o,n])})),t.buttonNextView.on("execute",(()=>{t.focusTracker.isFocused&&this.editor.editing.view.focus(),this._showNextStack()})),t.buttonPrevView.on("execute",(()=>{t.focusTracker.isFocused&&this.editor.editing.view.focus(),this._showPrevStack()})),t}_createFakePanelsView(){const t=new Bp(this.editor.locale,this.view);return t.bind("numberOfPanels").to(this,"_numberOfStacks",this,"_singleViewMode",((t,e)=>!e&&t>=2?Math.min(t-1,2):0)),t.listenTo(this.view,"change:top",(()=>t.updatePosition())),t.listenTo(this.view,"change:left",(()=>t.updatePosition())),this.editor.ui.view.body.add(t),t}_showView({view:t,balloonClassName:e="",withArrow:n=!0,singleViewMode:o=!1}){this.view.class=e,this.view.withArrow=n,this._rotatorView.showView(t),this.visibleView=t,this.view.pin(this._getBalloonPosition()),this._fakePanelsView.updatePosition(),o&&(this._singleViewMode=!0)}_getBalloonPosition(){let t=Array.from(this._visibleStack.values()).pop().position;return t&&(t.limiter||(t=Object.assign({},t,{limiter:this.positionLimiter})),t=Object.assign({},t,{viewportOffsetConfig:this.editor.ui.viewportOffset})),t}}class Sp extends ig{constructor(t){super(t);const e=t.t,n=this.bindTemplate;this.set("isNavigationVisible",!0),this.focusTracker=new xi,this.buttonPrevView=this._createButtonView(e("Previous"),Cp),this.buttonNextView=this._createButtonView(e("Next"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M8.537 14.813a.888.888 0 1 1-1.254-1.255L10.84 10 7.283 6.442a.888.888 0 1 1 1.254-1.255L12.74 9.39a.888.888 0 0 1-.16 1.382l-4.043 4.042z"/></svg>'),this.content=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-balloon-rotator"],"z-index":"-1"},children:[{tag:"div",attributes:{class:["ck-balloon-rotator__navigation",n.to("isNavigationVisible",(t=>t?"":"ck-hidden"))]},children:[this.buttonPrevView,{tag:"span",attributes:{class:["ck-balloon-rotator__counter"]},children:[{text:n.to("counter")}]},this.buttonNextView]},{tag:"div",attributes:{class:"ck-balloon-rotator__content"},children:this.content}]})}render(){super.render(),this.focusTracker.add(this.element)}destroy(){super.destroy(),this.focusTracker.destroy()}showView(t){this.hideView(),this.content.add(t)}hideView(){this.content.clear()}_createButtonView(t,e){const n=new Rg(this.locale);return n.set({label:t,icon:e,tooltip:!0}),n}}class Bp extends ig{constructor(t,e){super(t);const n=this.bindTemplate;this.set("top",0),this.set("left",0),this.set("height",0),this.set("width",0),this.set("numberOfPanels",0),this.content=this.createCollection(),this._balloonPanelView=e,this.setTemplate({tag:"div",attributes:{class:["ck-fake-panel",n.to("numberOfPanels",(t=>t?"":"ck-hidden"))],style:{top:n.to("top",Tp),left:n.to("left",Tp),width:n.to("width",Tp),height:n.to("height",Tp)}},children:this.content}),this.on("change:numberOfPanels",((t,e,n,o)=>{n>o?this._addPanels(n-o):this._removePanels(o-n),this.updatePosition()}))}_addPanels(t){for(;t--;){const t=new ig;t.setTemplate({tag:"div"}),this.content.add(t),this.registerChild(t)}}_removePanels(t){for(;t--;){const t=this.content.last;this.content.remove(t),this.deregisterChild(t),t.destroy()}}updatePosition(){if(this.numberOfPanels){const{top:t,left:e}=this._balloonPanelView,{width:n,height:o}=new Fo(this._balloonPanelView.element);Object.assign(this,{top:t,left:e,width:n,height:o})}}}var Ip=n(5868),Pp={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Ip.Z,Pp);Ip.Z.locals,Wo("px");const Rp=Wo("px");class zp extends Pi{constructor(t){super(t),this._resizeObserver=null,this._balloonConfig=sm(t.config.get("balloonToolbar")),this.toolbarView=this._createToolbarView(),this.focusTracker=new xi,t.ui.once("ready",(()=>{this.focusTracker.add(t.ui.getEditableElement()),this.focusTracker.add(this.toolbarView.element)})),t.ui.addToolbar(this.toolbarView,{beforeFocus:()=>this.show(!0),afterBlur:()=>this.hide(),isContextual:!0}),this._balloon=t.plugins.get(Dp),this._fireSelectionChangeDebounced=Ra((()=>this.fire("_selectionChangeDebounced")),200),this.decorate("show")}static get pluginName(){return"BalloonToolbar"}static get requires(){return[Dp]}init(){const t=this.editor,e=t.model.document.selection;this.listenTo(this.focusTracker,"change:isFocused",((t,e,n)=>{const o=this._balloon.visibleView===this.toolbarView;!n&&o?this.hide():n&&this.show()})),this.listenTo(e,"change:range",((t,n)=>{(n.directChange||e.isCollapsed)&&this.hide(),this._fireSelectionChangeDebounced()})),this.listenTo(this,"_selectionChangeDebounced",(()=>{this.editor.editing.view.document.isFocused&&this.show()})),this._balloonConfig.shouldNotGroupWhenFull||this.listenTo(t,"ready",(()=>{const e=t.ui.view.editable.element;this._resizeObserver=new jo(e,(t=>{this.toolbarView.maxWidth=Rp(.9*t.contentRect.width)}))})),this.listenTo(this.toolbarView,"groupedItemsUpdate",(()=>{this._updatePosition()}))}afterInit(){const t=this.editor.ui.componentFactory;this.toolbarView.fillFromConfig(this._balloonConfig,t)}_createToolbarView(){const t=this.editor.locale.t,e=!this._balloonConfig.shouldNotGroupWhenFull,n=new hm(this.editor.locale,{shouldGroupWhenFull:e,isFloating:!0});return n.ariaLabel=t("Editor contextual toolbar"),n.render(),n}show(t=!1){const e=this.editor,n=e.model.document.selection,o=e.model.schema;this._balloon.hasView(this.toolbarView)||n.isCollapsed&&!t||function(t,e){if(1===t.rangeCount)return!1;return[...t.getRanges()].every((t=>{const n=t.getContainedElement();return n&&e.isSelectable(n)}))}(n,o)||Array.from(this.toolbarView.items).every((t=>void 0!==t.isEnabled&&!t.isEnabled))||(this.listenTo(this.editor.ui,"update",(()=>{this._updatePosition()})),this._balloon.add({view:this.toolbarView,position:this._getBalloonPositionData(),balloonClassName:"ck-toolbar-container"}))}hide(){this._balloon.hasView(this.toolbarView)&&(this.stopListening(this.editor.ui,"update"),this._balloon.remove(this.toolbarView))}_getBalloonPositionData(){const t=this.editor.editing.view,e=t.document,n=e.selection,o=e.selection.isBackward;return{target:()=>{const e=o?n.getFirstRange():n.getLastRange(),i=Fo.getDomRangeRects(t.domConverter.viewRangeToDom(e));return o?i[0]:(i.length>1&&0===i[i.length-1].width&&i.pop(),i[i.length-1])},positions:this._getBalloonPositions(o)}}_updatePosition(){this._balloon.updatePosition(this._getBalloonPositionData())}destroy(){super.destroy(),this.stopListening(),this._fireSelectionChangeDebounced.cancel(),this.toolbarView.destroy(),this.focusTracker.destroy(),this._resizeObserver&&this._resizeObserver.destroy()}_getBalloonPositions(t){const e=i.isSafari&&i.isiOS?qm({heightOffset:Math.max(Hm.arrowHeightOffset,Math.round(20/Io.window.visualViewport.scale))}):Hm.defaultPositions;return t?[e.northWestArrowSouth,e.northWestArrowSouthWest,e.northWestArrowSouthEast,e.northWestArrowSouthMiddleEast,e.northWestArrowSouthMiddleWest,e.southWestArrowNorth,e.southWestArrowNorthWest,e.southWestArrowNorthEast,e.southWestArrowNorthMiddleWest,e.southWestArrowNorthMiddleEast]:[e.southEastArrowNorth,e.southEastArrowNorthEast,e.southEastArrowNorthWest,e.southEastArrowNorthMiddleEast,e.southEastArrowNorthMiddleWest,e.northEastArrowSouth,e.northEastArrowSouthEast,e.northEastArrowSouthWest,e.northEastArrowSouthMiddleEast,e.northEastArrowSouthMiddleWest]}}var Vp=n(9695),Op={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Vp.Z,Op);Vp.Z.locals;const Fp=Wo("px");class Np extends Rg{constructor(t){super(t);const e=this.bindTemplate;this.isVisible=!1,this.isToggleable=!0,this.set("top",0),this.set("left",0),this.extendTemplate({attributes:{class:"ck-block-toolbar-button",style:{top:e.to("top",(t=>Fp(t))),left:e.to("left",(t=>Fp(t)))}}})}}const Mp=Wo("px"),{pilcrow:Lp}=Ju;class Hp{constructor(t){if(this.crashes=[],this.state="initializing",this._now=Date.now,this.crashes=[],this._crashNumberLimit="number"==typeof t.crashNumberLimit?t.crashNumberLimit:3,this._minimumNonErrorTimePeriod="number"==typeof t.minimumNonErrorTimePeriod?t.minimumNonErrorTimePeriod:5e3,this._boundErrorHandler=t=>{const e="error"in t?t.error:t.reason;e instanceof Error&&this._handleError(e,t)},this._listeners={},!this._restart)throw new Error("The Watchdog class was split into the abstract `Watchdog` class and the `EditorWatchdog` class. Please, use `EditorWatchdog` if you have used the `Watchdog` class previously.")}destroy(){this._stopErrorHandling(),this._listeners={}}on(t,e){this._listeners[t]||(this._listeners[t]=[]),this._listeners[t].push(e)}off(t,e){this._listeners[t]=this._listeners[t].filter((t=>t!==e))}_fire(t,...e){const n=this._listeners[t]||[];for(const t of n)t.apply(this,[null,...e])}_startErrorHandling(){window.addEventListener("error",this._boundErrorHandler),window.addEventListener("unhandledrejection",this._boundErrorHandler)}_stopErrorHandling(){window.removeEventListener("error",this._boundErrorHandler),window.removeEventListener("unhandledrejection",this._boundErrorHandler)}_handleError(t,e){if(this._shouldReactToError(t)){this.crashes.push({message:t.message,stack:t.stack,filename:e instanceof ErrorEvent?e.filename:void 0,lineno:e instanceof ErrorEvent?e.lineno:void 0,colno:e instanceof ErrorEvent?e.colno:void 0,date:this._now()});const n=this._shouldRestart();this.state="crashed",this._fire("stateChange"),this._fire("error",{error:t,causesRestart:n}),n?this._restart():(this.state="crashedPermanently",this._fire("stateChange"))}}_shouldReactToError(t){return t.is&&t.is("CKEditorError")&&void 0!==t.context&&null!==t.context&&"ready"===this.state&&this._isErrorComingFromThisItem(t)}_shouldRestart(){if(this.crashes.length<=this._crashNumberLimit)return!0;return(this.crashes[this.crashes.length-1].date-this.crashes[this.crashes.length-1-this._crashNumberLimit].date)/this._crashNumberLimit>this._minimumNonErrorTimePeriod}}function jp(t,e=new Set){const n=[t],o=new Set;let i=0;for(;n.length>i;){const t=n[i++];if(!o.has(t)&&qp(t)&&!e.has(t))if(o.add(t),Symbol.iterator in t)try{for(const e of t)n.push(e)}catch(t){}else for(const e in t)"defaultValue"!==e&&n.push(t[e])}return o}function qp(t){const e=Object.prototype.toString.call(t),n=typeof t;return!("number"===n||"boolean"===n||"string"===n||"symbol"===n||"function"===n||"[object Date]"===e||"[object RegExp]"===e||"[object Module]"===e||null==t||t._watchdogExcluded||t instanceof EventTarget||t instanceof Event)}function Wp(t,e,n=new Set){if(t===e&&("object"==typeof(o=t)&&null!==o))return!0;var o;const i=jp(t,n),r=jp(e,n);for(const t of i)if(r.has(t))return!0;return!1}const Up=function(t,e,n){var o=!0,i=!0;if("function"!=typeof t)throw new TypeError("Expected a function");return V(n)&&(o="leading"in n?!!n.leading:o,i="trailing"in n?!!n.trailing:i),Ra(t,e,{leading:o,maxWait:e,trailing:i})};class $p extends Hp{constructor(t,e={}){super(e),this._editor=null,this._throttledSave=Up(this._save.bind(this),"number"==typeof e.saveInterval?e.saveInterval:5e3),t&&(this._creator=(e,n)=>t.create(e,n)),this._destructor=t=>t.destroy()}get editor(){return this._editor}get _item(){return this._editor}setCreator(t){this._creator=t}setDestructor(t){this._destructor=t}_restart(){return Promise.resolve().then((()=>(this.state="initializing",this._fire("stateChange"),this._destroy()))).catch((t=>{console.error("An error happened during the editor destroying.",t)})).then((()=>{if("string"==typeof this._elementOrData)return this.create(this._data,this._config,this._config.context);{const t=Object.assign({},this._config,{initialData:this._data});return this.create(this._elementOrData,t,t.context)}})).then((()=>{this._fire("restart")}))}create(t=this._elementOrData,e=this._config,n){return Promise.resolve().then((()=>(super._startErrorHandling(),this._elementOrData=t,this._config=this._cloneEditorConfiguration(e)||{},this._config.context=n,this._creator(t,this._config)))).then((t=>{this._editor=t,t.model.document.on("change:data",this._throttledSave),this._lastDocumentVersion=t.model.document.version,this._data=this._getData(),this.state="ready",this._fire("stateChange")}))}destroy(){return Promise.resolve().then((()=>(this.state="destroyed",this._fire("stateChange"),super.destroy(),this._destroy())))}_destroy(){return Promise.resolve().then((()=>{this._stopErrorHandling(),this._throttledSave.flush();const t=this._editor;return this._editor=null,t.model.document.off("change:data",this._throttledSave),this._destructor(t)}))}_save(){const t=this._editor.model.document.version;try{this._data=this._getData(),this._lastDocumentVersion=t}catch(t){console.error(t,"An error happened during restoring editor data. Editor will be restored from the previously saved data.")}}_setExcludedProperties(t){this._excludedProps=t}_getData(){const t={};for(const e of this._editor.model.document.getRootNames())t[e]=this._editor.data.get({rootName:e});return t}_isErrorComingFromThisItem(t){return Wp(this._editor,t.context,this._excludedProps)}_cloneEditorConfiguration(t){return wo(t,((t,e)=>_o(t)||"context"===e?t:void 0))}}const Gp=Symbol("MainQueueId");class Kp{constructor(){this._onEmptyCallbacks=[],this._queues=new Map,this._activeActions=0}onEmpty(t){this._onEmptyCallbacks.push(t)}enqueue(t,e){const n=t===Gp;this._activeActions++,this._queues.get(t)||this._queues.set(t,Promise.resolve());const o=(n?Promise.all(this._queues.values()):Promise.all([this._queues.get(Gp),this._queues.get(t)])).then(e),i=o.catch((()=>{}));return this._queues.set(t,i),o.finally((()=>{this._activeActions--,this._queues.get(t)===i&&0===this._activeActions&&this._onEmptyCallbacks.forEach((t=>t()))}))}}function Zp(t){return Array.isArray(t)?t:[t]}class Jp extends Jm{constructor(t,e){super(t),this.view=e}get element(){return this.view.editable.element}init(){const t=this.editor,e=this.view,n=t.editing.view,o=e.editable,i=n.document.getRoot();o.name=i.rootName,e.render();const r=o.element;this.setEditableElement(o.name,r),o.bind("isFocused").to(this.focusTracker),n.attachDomRoot(r),this._initPlaceholder(),this.fire("ready")}destroy(){super.destroy();const t=this.view;this.editor.editing.view.detachDomRoot(t.editable.name),t.destroy()}_initPlaceholder(){const t=this.editor,e=t.editing.view,n=e.document.getRoot(),o=(t.sourceElement,t.config.get("placeholder"));if(o){const t="string"==typeof o?o:o[n.rootName];t&&$i({view:e,element:n,text:t,isDirectHost:!1,keepOnFocus:!0})}}}class Yp extends tp{constructor(t,e,n){super(t);const o=t.t;this.editable=new rp(t,e,n,{label:t=>o("Rich Text Editor. Editing area: %0",t.name)})}render(){super.render(),this.registerChild(this.editable)}}class Qp extends(Gu(Ku($u))){constructor(t,e={}){if(!Xp(t)&&void 0!==e.initialData)throw new b("editor-create-initial-data",null);super(e),void 0===this.config.get("initialData")&&this.config.set("initialData",function(t){return Xp(t)?(e=t,e instanceof HTMLTextAreaElement?e.value:e.innerHTML):t;var e}(t)),Xp(t)&&(this.sourceElement=t,function(t,e){if(e.ckeditorInstance)throw new b("editor-source-element-already-used",t);e.ckeditorInstance=t,t.once("destroy",(()=>{delete e.ckeditorInstance}))}(this,t));const n=this.config.get("plugins");n.push(zp),this.config.set("plugins",n),this.config.define("balloonToolbar",this.config.get("toolbar")),this.model.document.createRoot();const o=new Yp(this.locale,this.editing.view,this.sourceElement);this.ui=new Jp(this,o),function(t){if(!Ft(t.updateSourceElement))throw new b("attachtoform-missing-elementapi-interface",t);const e=t.sourceElement;if(function(t){return!!t&&"textarea"===t.tagName.toLowerCase()}(e)&&e.form){let n;const o=e.form,i=()=>t.updateSourceElement();Ft(o.submit)&&(n=o.submit,o.submit=()=>{i(),n.apply(o)}),o.addEventListener("submit",i),t.on("destroy",(()=>{o.removeEventListener("submit",i),n&&(o.submit=n)}))}}(this)}destroy(){const t=this.getData();return this.ui.destroy(),super.destroy().then((()=>{this.sourceElement&&this.updateSourceElement(t)}))}static create(t,e={}){return new Promise((n=>{if(Xp(t)&&"TEXTAREA"===t.tagName)throw new b("editor-wrong-element",null);const o=new this(t,e);n(o.initPlugins().then((()=>o.ui.init())).then((()=>o.data.init(o.config.get("initialData")))).then((()=>o.fire("ready"))).then((()=>o)))}))}}function Xp(t){return _o(t)}Qp.Context=Ni,Qp.EditorWatchdog=$p,Qp.ContextWatchdog=class extends Hp{constructor(t,e={}){super(e),this._watchdogs=new Map,this._context=null,this._contextProps=new Set,this._actionQueues=new Kp,this._watchdogConfig=e,this._creator=e=>t.create(e),this._destructor=t=>t.destroy(),this._actionQueues.onEmpty((()=>{"initializing"===this.state&&(this.state="ready",this._fire("stateChange"))}))}setCreator(t){this._creator=t}setDestructor(t){this._destructor=t}get context(){return this._context}create(t={}){return this._actionQueues.enqueue(Gp,(()=>(this._contextConfig=t,this._create())))}getItem(t){return this._getWatchdog(t)._item}getItemState(t){return this._getWatchdog(t).state}add(t){const e=Zp(t);return Promise.all(e.map((t=>this._actionQueues.enqueue(t.id,(()=>{if("destroyed"===this.state)throw new Error("Cannot add items to destroyed watchdog.");if(!this._context)throw new Error("Context was not created yet. You should call the `ContextWatchdog#create()` method first.");let e;if(this._watchdogs.has(t.id))throw new Error(`Item with the given id is already added: '${t.id}'.`);if("editor"===t.type)return e=new $p(null,this._watchdogConfig),e.setCreator(t.creator),e._setExcludedProperties(this._contextProps),t.destructor&&e.setDestructor(t.destructor),this._watchdogs.set(t.id,e),e.on("error",((n,{error:o,causesRestart:i})=>{this._fire("itemError",{itemId:t.id,error:o}),i&&this._actionQueues.enqueue(t.id,(()=>new Promise((n=>{const o=()=>{e.off("restart",o),this._fire("itemRestart",{itemId:t.id}),n()};e.on("restart",o)}))))})),e.create(t.sourceElementOrData,t.config,this._context);throw new Error(`Not supported item type: '${t.type}'.`)})))))}remove(t){const e=Zp(t);return Promise.all(e.map((t=>this._actionQueues.enqueue(t,(()=>{const e=this._getWatchdog(t);return this._watchdogs.delete(t),e.destroy()})))))}destroy(){return this._actionQueues.enqueue(Gp,(()=>(this.state="destroyed",this._fire("stateChange"),super.destroy(),this._destroy())))}_restart(){return this._actionQueues.enqueue(Gp,(()=>(this.state="initializing",this._fire("stateChange"),this._destroy().catch((t=>{console.error("An error happened during destroying the context or items.",t)})).then((()=>this._create())).then((()=>this._fire("restart"))))))}_create(){return Promise.resolve().then((()=>(this._startErrorHandling(),this._creator(this._contextConfig)))).then((t=>(this._context=t,this._contextProps=jp(this._context),Promise.all(Array.from(this._watchdogs.values()).map((t=>(t._setExcludedProperties(this._contextProps),t.create(void 0,void 0,this._context))))))))}_destroy(){return Promise.resolve().then((()=>{this._stopErrorHandling();const t=this._context;return this._context=null,this._contextProps=new Set,Promise.all(Array.from(this._watchdogs.values()).map((t=>t.destroy()))).then((()=>this._destructor(t)))}))}_getWatchdog(t){const e=this._watchdogs.get(t);if(!e)throw new Error(`Item with the given id was not registered: ${t}.`);return e}_isErrorComingFromThisItem(t){for(const e of this._watchdogs.values())if(e._isErrorComingFromThisItem(t))return!1;return Wp(this._context,t.context)}};var tf=n(6764),ef={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(tf.Z,ef);tf.Z.locals;var nf=n(2822),of={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(nf.Z,of);nf.Z.locals;class rf extends ig{constructor(t){super(t);const e=t.t;this.set("matchCount",0),this.set("highlightOffset",0),this.set("isDirty",!1),this.set("_areCommandsEnabled",{}),this.set("_resultsCounterText",""),this.set("_matchCase",!1),this.set("_wholeWordsOnly",!1),this.bind("_searchResultsFound").to(this,"matchCount",this,"isDirty",((t,e)=>t>0&&!e)),this._findInputView=this._createInputField(e("Find in text…")),this._replaceInputView=this._createInputField(e("Replace with…")),this._findButtonView=this._createButton({label:e("Find"),class:"ck-button-find ck-button-action",withText:!0}),this._findPrevButtonView=this._createButton({label:e("Previous result"),class:"ck-button-prev",icon:Cp,keystroke:"Shift+F3",tooltip:!0}),this._findNextButtonView=this._createButton({label:e("Next result"),class:"ck-button-next",icon:Cp,keystroke:"F3",tooltip:!0}),this._optionsDropdown=this._createOptionsDropdown(),this._replaceButtonView=this._createButton({label:e("Replace"),class:"ck-button-replace",withText:!0}),this._replaceAllButtonView=this._createButton({label:e("Replace all"),class:"ck-button-replaceall",withText:!0}),this._findFieldsetView=this._createFindFieldset(),this._replaceFieldsetView=this._createReplaceFieldset(),this._focusTracker=new xi,this._keystrokes=new Ei,this._focusables=new eg,this._focusCycler=new nm({focusables:this._focusables,focusTracker:this._focusTracker,keystrokeHandler:this._keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"form",attributes:{class:["ck","ck-find-and-replace-form"],tabindex:"-1"},children:[new lp(t,{label:e("Find and replace")}),this._findFieldsetView,this._replaceFieldsetView]})}render(){super.render(),Xu({view:this}),this._initFocusCycling(),this._initKeystrokeHandling()}destroy(){super.destroy(),this._focusTracker.destroy(),this._keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}reset(){this._findInputView.errorText=null,this.isDirty=!0}get _textToFind(){return this._findInputView.fieldView.element.value}get _textToReplace(){return this._replaceInputView.fieldView.element.value}_createFindFieldset(){const t=this.locale,e=new ig(t);return this._findInputView.fieldView.on("input",(()=>{this.isDirty=!0})),this._findButtonView.on("execute",this._onFindButtonExecute.bind(this)),this._findPrevButtonView.delegate("execute").to(this,"findPrevious"),this._findNextButtonView.delegate("execute").to(this,"findNext"),this._findPrevButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",(({findPrevious:t})=>t)),this._findNextButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",(({findNext:t})=>t)),this._injectFindResultsCounter(),e.setTemplate({tag:"fieldset",attributes:{class:["ck","ck-find-and-replace-form__find"]},children:[this._findInputView,this._findButtonView,this._findPrevButtonView,this._findNextButtonView]}),e}_onFindButtonExecute(){if(this._textToFind)this.isDirty=!1,this.fire("findNext",{searchText:this._textToFind,matchCase:this._matchCase,wholeWords:this._wholeWordsOnly});else{const t=this.t;this._findInputView.errorText=t("Text to find must not be empty.")}}_injectFindResultsCounter(){const t=this.locale,e=t.t,n=this.bindTemplate,o=new ig(this.locale);this.bind("_resultsCounterText").to(this,"highlightOffset",this,"matchCount",((t,n)=>e("%0 of %1",[t,n]))),o.setTemplate({tag:"span",attributes:{class:["ck","ck-results-counter",n.if("isDirty","ck-hidden")]},children:[{text:n.to("_resultsCounterText")}]});const i=()=>{const e=this._findInputView.fieldView.element;if(!e||!Ko(e))return;const n=new Fo(o.element).width,i="ltr"===t.uiLanguageDirection?"paddingRight":"paddingLeft";e.style[i]=n?`calc( 2 * var(--ck-spacing-standard) + ${n}px )`:""};this.on("change:_resultsCounterText",i,{priority:"low"}),this.on("change:isDirty",i,{priority:"low"}),this._findInputView.template.children[0].children.push(o)}_createReplaceFieldset(){const t=this.locale.t,e=new ig(this.locale);return this._replaceButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",this,"_searchResultsFound",(({replace:t},e)=>t&&e)),this._replaceAllButtonView.bind("isEnabled").to(this,"_areCommandsEnabled",this,"_searchResultsFound",(({replaceAll:t},e)=>t&&e)),this._replaceInputView.bind("isEnabled").to(this,"_areCommandsEnabled",this,"_searchResultsFound",(({replace:t},e)=>t&&e)),this._replaceInputView.bind("infoText").to(this._replaceInputView,"isEnabled",this._replaceInputView,"isFocused",((e,n)=>e||!n?"":t("Tip: Find some text first in order to replace it."))),this._replaceButtonView.on("execute",(()=>{this.fire("replace",{searchText:this._textToFind,replaceText:this._textToReplace})})),this._replaceAllButtonView.on("execute",(()=>{this.fire("replaceAll",{searchText:this._textToFind,replaceText:this._textToReplace}),this.focus()})),e.setTemplate({tag:"fieldset",attributes:{class:["ck","ck-find-and-replace-form__replace"]},children:[this._replaceInputView,this._optionsDropdown,this._replaceButtonView,this._replaceAllButtonView]}),e}_createOptionsDropdown(){const t=this.locale.t,e=ym(this.locale);e.class="ck-options-dropdown",e.buttonView.set({withText:!1,label:t("Show options"),icon:Ju.cog,tooltip:!0});const n=new Ap({withText:!0,label:t("Match case"),_isMatchCaseSwitch:!0}),o=new Ap({withText:!0,label:t("Whole words only")});return n.bind("isOn").to(this,"_matchCase"),o.bind("isOn").to(this,"_wholeWordsOnly"),e.on("execute",(t=>{t.source._isMatchCaseSwitch?this._matchCase=!this._matchCase:this._wholeWordsOnly=!this._wholeWordsOnly,this.isDirty=!0})),Tm(e,new vi([{type:"switchbutton",model:n},{type:"switchbutton",model:o}])),e}_initFocusCycling(){[this._findInputView,this._findButtonView,this._findPrevButtonView,this._findNextButtonView,this._replaceInputView,this._optionsDropdown,this._replaceButtonView,this._replaceAllButtonView].forEach((t=>{this._focusables.add(t),this._focusTracker.add(t.element)}))}_initKeystrokeHandling(){const t=t=>t.stopPropagation(),e=t=>{t.stopPropagation(),t.preventDefault()};this._keystrokes.listenTo(this.element),this._keystrokes.set("f3",(t=>{e(t),this._findNextButtonView.fire("execute")})),this._keystrokes.set("shift+f3",(t=>{e(t),this._findPrevButtonView.fire("execute")})),this._keystrokes.set("enter",(t=>{const n=t.target;n===this._findInputView.fieldView.element?(this._areCommandsEnabled.findNext?this._findNextButtonView.fire("execute"):this._findButtonView.fire("execute"),e(t)):n!==this._replaceInputView.fieldView.element||this.isDirty||(this._replaceButtonView.fire("execute"),e(t))})),this._keystrokes.set("shift+enter",(t=>{t.target===this._findInputView.fieldView.element&&(this._areCommandsEnabled.findPrevious?this._findPrevButtonView.fire("execute"):this._findButtonView.fire("execute"),e(t))})),this._keystrokes.set("arrowright",t),this._keystrokes.set("arrowleft",t),this._keystrokes.set("arrowup",t),this._keystrokes.set("arrowdown",t),this.listenTo(this._findInputView.element,"selectstart",((t,e)=>{e.stopPropagation()}),{priority:"high"}),this.listenTo(this._replaceInputView.element,"selectstart",((t,e)=>{e.stopPropagation()}),{priority:"high"})}_createButton(t){const e=new Rg(this.locale);return e.set(t),e}_createInputField(t){const e=new fp(this.locale,bp);return e.label=t,e}}class sf extends Pi{constructor(t){super(t),this.formView=null}static get pluginName(){return"FindAndReplaceUI"}init(){const t=this.editor;t.ui.componentFactory.add("findAndReplace",(e=>{const n=ym(e),o=t.commands.get("find");return n.bind("isEnabled").to(o),n.once("change:isOpen",(()=>{this.formView=new(Qu(rf))(t.locale),n.panelView.children.add(this.formView),this._setupFormView(this.formView)})),n.on("change:isOpen",((t,e,n)=>{n?(this.formView.disableCssTransitions(),this.formView.reset(),this.formView._findInputView.fieldView.select(),this.formView.enableCssTransitions()):this.fire("searchReseted")}),{priority:"low"}),this._setupDropdownButton(n),n}))}_setupDropdownButton(t){const e=this.editor.locale.t;t.buttonView.set({icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m12.87 13.786 1.532-1.286 3.857 4.596a1 1 0 1 1-1.532 1.286l-3.857-4.596z"/><path d="M16.004 8.5a6.5 6.5 0 0 1-9.216 5.905c-1.154-.53-.863-1.415-.663-1.615.194-.194.564-.592 1.635-.141a4.5 4.5 0 0 0 5.89-5.904l-.104-.227 1.332-1.331c.045-.046.196-.041.224.007a6.47 6.47 0 0 1 .902 3.306zm-3.4-5.715c.562.305.742 1.106.354 1.494-.388.388-.995.414-1.476.178a4.5 4.5 0 0 0-6.086 5.882l.114.236-1.348 1.349c-.038.037-.17.022-.198-.023a6.5 6.5 0 0 1 5.54-9.9 6.469 6.469 0 0 1 3.1.784z"/><path d="M4.001 11.93.948 8.877a.2.2 0 0 1 .141-.341h6.106a.2.2 0 0 1 .141.341L4.283 11.93a.2.2 0 0 1-.282 0zm11.083-6.789 3.053 3.053a.2.2 0 0 1-.14.342H11.89a.2.2 0 0 1-.14-.342l3.052-3.053a.2.2 0 0 1 .282 0z"/></svg>',label:e("Find and replace"),tooltip:!0})}_setupFormView(t){const e=this.editor.commands,n=this.editor.plugins.get("FindAndReplaceEditing").state,o={before:-1,same:0,after:1,different:1};t.bind("highlightOffset").to(n,"highlightedResult",(t=>t?Array.from(n.results).sort(((t,e)=>o[t.marker.getStart().compareWith(e.marker.getStart())])).indexOf(t)+1:0)),t.listenTo(n.results,"change",(()=>{t.matchCount=n.results.length}));const i=e.get("findNext"),r=e.get("findPrevious"),s=e.get("replace"),a=e.get("replaceAll");t.bind("_areCommandsEnabled").to(i,"isEnabled",r,"isEnabled",s,"isEnabled",a,"isEnabled",((t,e,n,o)=>({findNext:t,findPrevious:e,replace:n,replaceAll:o}))),t.delegate("findNext","findPrevious","replace","replaceAll").to(this),t.on("change:isDirty",((t,e,n)=>{n&&this.fire("searchReseted")}))}}class af extends zi{constructor(t,e){super(t),this.isEnabled=!0,this.affectsData=!1,this._state=e}execute(t,{matchCase:e,wholeWords:n}={}){const{editor:o}=this,{model:i}=o,r=o.plugins.get("FindAndReplaceUtils");let s;"string"==typeof t?(s=r.findByTextCallback(t,{matchCase:e,wholeWords:n}),this._state.searchText=t):s=t;const a=i.document.getRootNames().reduce(((t,e)=>r.updateFindResultFromRange(i.createRangeIn(i.document.getRoot(e)),i,s,t)),null);return this._state.clear(i),this._state.results.addMany(a),this._state.highlightedResult=a.get(0),"string"==typeof t&&(this._state.searchText=t),this._state.matchCase=!!e,this._state.matchWholeWords=!!n,{results:a,findCallback:s}}}class lf extends zi{constructor(t,e){super(t),this.isEnabled=!0,this._state=e}_replace(t,e){const{model:n}=this.editor;n.change((o=>{const i=e.marker.getRange();if("$graveyard"===i.root.rootName)return void this._state.results.remove(e);let r={};for(const t of i.getItems())if(t.is("$text")||t.is("$textProxy")){r=t.getAttributes();break}n.insertContent(o.createText(t,r),i),this._state.results.has(e)&&this._state.results.remove(e)}))}}class cf extends lf{execute(t,e){this._replace(t,e)}}class df extends lf{execute(t,e){const{editor:n}=this,{model:o}=n,i=n.plugins.get("FindAndReplaceUtils"),r=e instanceof vi?e:o.document.getRootNames().reduce(((t,n)=>i.updateFindResultFromRange(o.createRangeIn(o.document.getRoot(n)),o,i.findByTextCallback(e,this._state),t)),null);r.length&&[...r].forEach((e=>{this._replace(t,e)}))}}class hf extends zi{constructor(t,e){super(t),this.affectsData=!1,this._state=e,this.isEnabled=!1,this.listenTo(this._state.results,"change",(()=>{this.isEnabled=this._state.results.length>1}))}refresh(){this.isEnabled=this._state.results.length>1}execute(){const t=this._state.results,e=t.getIndex(this._state.highlightedResult),n=e+1>=t.length?0:e+1;this._state.highlightedResult=this._state.results.get(n)}}class uf extends hf{execute(){const t=this._state.results.getIndex(this._state.highlightedResult),e=t-1<0?this._state.results.length-1:t-1;this._state.highlightedResult=this._state.results.get(e)}}class gf extends(j()){constructor(t){super(),this.set("results",new vi),this.set("highlightedResult",null),this.set("searchText",""),this.set("replaceText",""),this.set("matchCase",!1),this.set("matchWholeWords",!1),this.results.on("change",((e,{removed:n,index:o})=>{if(Array.from(n).length){let e=!1;if(t.change((o=>{for(const i of n)this.highlightedResult===i&&(e=!0),t.markers.has(i.marker.name)&&o.removeMarker(i.marker)})),e){const t=o>=this.results.length?0:o;this.highlightedResult=this.results.get(t)}}}))}clear(t){this.searchText="",t.change((e=>{if(this.highlightedResult){const n=this.highlightedResult.marker.name.split(":")[1],o=t.markers.get(`findResultHighlighted:${n}`);o&&e.removeMarker(o)}[...this.results].forEach((({marker:t})=>{e.removeMarker(t)}))})),this.results.clear()}}var mf=/[\\^$.*+?()[\]{}|]/g,pf=RegExp(mf.source);const ff=function(t){return(t=wr(t))&&pf.test(t)?t.replace(mf,"\\$&"):t};class bf extends Pi{static get pluginName(){return"FindAndReplaceUtils"}updateFindResultFromRange(t,e,n,o){const i=o||new vi;return e.change((o=>{[...t].forEach((({type:t,item:r})=>{if("elementStart"===t&&e.schema.checkChild(r,"$text")){const t=n({item:r,text:this.rangeToText(e.createRangeIn(r))});if(!t)return;t.forEach((t=>{const e=`findResult:${g()}`,n=o.addMarker(e,{usingOperation:!1,affectsData:!1,range:o.createRange(o.createPositionAt(r,t.start),o.createPositionAt(r,t.end))}),s=function(t,e){const n=t.find((({marker:t})=>e.getStart().isBefore(t.getStart())));return n?t.getIndex(n):t.length}(i,n);i.add({id:e,label:t.label,marker:n},s)}))}}))})),i}rangeToText(t){return Array.from(t.getItems()).reduce(((t,e)=>e.is("$text")||e.is("$textProxy")?t+e.data:`${t}\n`),"")}findByTextCallback(t,e){let n="gu";e.matchCase||(n+="i");let o=`(${ff(t)})`;if(e.wholeWords){const e="[^a-zA-ZÀ-ɏḀ-ỿ]";new RegExp("^"+e).test(t)||(o=`(^|${e}|_)${o}`),new RegExp(e+"$").test(t)||(o=`${o}(?=_|${e}|$)`)}const i=new RegExp(o,n);return function({text:t}){return[...t.matchAll(i)].map(kf)}}}function kf(t){const e=t.length-1;let n=t.index;return 3===t.length&&(n+=t[1].length),{label:t[e],start:n,end:n+t[e].length}}var wf=n(9932),_f={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(wf.Z,_f);wf.Z.locals;class Af extends Pi{static get requires(){return[bf]}static get pluginName(){return"FindAndReplaceEditing"}init(){this._activeResults=null,this.state=new gf(this.editor.model),this._defineConverters(),this._defineCommands(),this.listenTo(this.state,"change:highlightedResult",((t,e,n,o)=>{const{model:i}=this.editor;i.change((t=>{if(o){const e=o.marker.name.split(":")[1],n=i.markers.get(`findResultHighlighted:${e}`);n&&t.removeMarker(n)}if(n){const e=n.marker.name.split(":")[1];t.addMarker(`findResultHighlighted:${e}`,{usingOperation:!1,affectsData:!1,range:n.marker.getRange()})}}))}));const t=Ra(((t,e,n)=>{if(n){const t=this.editor.editing.view.domConverter,e=this.editor.editing.mapper.toViewRange(n.marker.getRange());ti({target:t.viewRangeToDom(e),viewportOffset:40})}}).bind(this),32);this.listenTo(this.state,"change:highlightedResult",t,{priority:"low"}),this.listenTo(this.editor,"destroy",t.cancel)}find(t){const{editor:e}=this,{model:n}=e,{findCallback:o,results:i}=e.execute("find",t);return this._activeResults=i,this.listenTo(n.document,"change:data",(()=>function(t,e,n){const o=new Set,i=new Set,r=e.model;r.document.differ.getChanges().forEach((t=>{"$text"===t.name||r.schema.isInline(t.position.nodeAfter)?(o.add(t.position.parent),[...r.markers.getMarkersAtPosition(t.position)].forEach((t=>{i.add(t.name)}))):"insert"===t.type&&o.add(t.position.nodeAfter)})),r.document.differ.getChangedMarkers().forEach((({name:t,data:{newRange:e}})=>{e&&"$graveyard"===e.start.root.rootName&&i.add(t)})),o.forEach((t=>{[...r.markers.getMarkersIntersectingRange(r.createRangeIn(t))].forEach((t=>i.add(t.name)))})),r.change((e=>{i.forEach((n=>{t.has(n)&&t.remove(n),e.removeMarker(n)}))})),o.forEach((o=>{e.plugins.get("FindAndReplaceUtils").updateFindResultFromRange(r.createRangeOn(o),r,n,t)}))}(this._activeResults,e,o))),this._activeResults}stop(){this._activeResults&&(this.stopListening(this.editor.model.document),this.state.clear(this.editor.model),this._activeResults=null)}_defineCommands(){this.editor.commands.add("find",new af(this.editor,this.state)),this.editor.commands.add("findNext",new hf(this.editor,this.state)),this.editor.commands.add("findPrevious",new uf(this.editor,this.state)),this.editor.commands.add("replace",new cf(this.editor,this.state)),this.editor.commands.add("replaceAll",new df(this.editor,this.state))}_defineConverters(){const{editor:t}=this;t.conversion.for("editingDowncast").markerToHighlight({model:"findResult",view:({markerName:t})=>{const[,e]=t.split(":");return{name:"span",classes:["ck-find-result"],attributes:{"data-find-result":e}}}}),t.conversion.for("editingDowncast").markerToHighlight({model:"findResultHighlighted",view:({markerName:t})=>{const[,e]=t.split(":");return{name:"span",classes:["ck-find-result_selected"],attributes:{"data-find-result":e}}}})}}class Cf extends(j()){constructor(){super();const t=new window.FileReader;this._reader=t,this._data=void 0,this.set("loaded",0),t.onprogress=t=>{this.loaded=t.loaded}}get error(){return this._reader.error}get data(){return this._data}read(t){const e=this._reader;return this.total=t.size,new Promise(((n,o)=>{e.onload=()=>{const t=e.result;this._data=t,n(t)},e.onerror=()=>{o("error")},e.onabort=()=>{o("aborted")},this._reader.readAsDataURL(t)}))}abort(){this._reader.abort()}}class vf extends Pi{constructor(){super(...arguments),this.loaders=new vi,this._loadersMap=new Map,this._pendingAction=null}static get pluginName(){return"FileRepository"}static get requires(){return[Zu]}init(){this.loaders.on("change",(()=>this._updatePendingAction())),this.set("uploaded",0),this.set("uploadTotal",null),this.bind("uploadedPercent").to(this,"uploaded",this,"uploadTotal",((t,e)=>e?t/e*100:0))}getLoader(t){return this._loadersMap.get(t)||null}createLoader(t){if(!this.createUploadAdapter)return k("filerepository-no-upload-adapter"),null;const e=new yf(Promise.resolve(t),this.createUploadAdapter);return this.loaders.add(e),this._loadersMap.set(t,e),t instanceof Promise&&e.file.then((t=>{this._loadersMap.set(t,e)})).catch((()=>{})),e.on("change:uploaded",(()=>{let t=0;for(const e of this.loaders)t+=e.uploaded;this.uploaded=t})),e.on("change:uploadTotal",(()=>{let t=0;for(const e of this.loaders)e.uploadTotal&&(t+=e.uploadTotal);this.uploadTotal=t})),e}destroyLoader(t){const e=t instanceof yf?t:this.getLoader(t);e._destroy(),this.loaders.remove(e),this._loadersMap.forEach(((t,n)=>{t===e&&this._loadersMap.delete(n)}))}_updatePendingAction(){const t=this.editor.plugins.get(Zu);if(this.loaders.length){if(!this._pendingAction){const e=this.editor.t,n=t=>`${e("Upload in progress")} ${parseInt(t)}%.`;this._pendingAction=t.add(n(this.uploadedPercent)),this._pendingAction.bind("message").to(this,"uploadedPercent",n)}}else t.remove(this._pendingAction),this._pendingAction=null}}class yf extends(j()){constructor(t,e){super(),this.id=g(),this._filePromiseWrapper=this._createFilePromiseWrapper(t),this._adapter=e(this),this._reader=new Cf,this.set("status","idle"),this.set("uploaded",0),this.set("uploadTotal",null),this.bind("uploadedPercent").to(this,"uploaded",this,"uploadTotal",((t,e)=>e?t/e*100:0)),this.set("uploadResponse",null)}get file(){return this._filePromiseWrapper?this._filePromiseWrapper.promise.then((t=>this._filePromiseWrapper?t:null)):Promise.resolve(null)}get data(){return this._reader.data}read(){if("idle"!=this.status)throw new b("filerepository-read-wrong-status",this);return this.status="reading",this.file.then((t=>this._reader.read(t))).then((t=>{if("reading"!==this.status)throw this.status;return this.status="idle",t})).catch((t=>{if("aborted"===t)throw this.status="aborted","aborted";throw this.status="error",this._reader.error?this._reader.error:t}))}upload(){if("idle"!=this.status)throw new b("filerepository-upload-wrong-status",this);return this.status="uploading",this.file.then((()=>this._adapter.upload())).then((t=>(this.uploadResponse=t,this.status="idle",t))).catch((t=>{if("aborted"===this.status)throw"aborted";throw this.status="error",t}))}abort(){const t=this.status;this.status="aborted",this._filePromiseWrapper.isFulfilled?"reading"==t?this._reader.abort():"uploading"==t&&this._adapter.abort&&this._adapter.abort():(this._filePromiseWrapper.promise.catch((()=>{})),this._filePromiseWrapper.rejecter("aborted")),this._destroy()}_destroy(){this._filePromiseWrapper=void 0,this._reader=void 0,this._adapter=void 0,this.uploadResponse=void 0}_createFilePromiseWrapper(t){const e={};return e.promise=new Promise(((n,o)=>{e.rejecter=o,e.isFulfilled=!1,t.then((t=>{e.isFulfilled=!0,n(t)})).catch((t=>{e.isFulfilled=!0,o(t)}))})),e}}class xf extends ig{constructor(t){super(t),this.buttonView=new Rg(t),this._fileInputView=new Ef(t),this._fileInputView.bind("acceptedType").to(this),this._fileInputView.bind("allowMultipleFiles").to(this),this._fileInputView.delegate("done").to(this),this.setTemplate({tag:"span",attributes:{class:"ck-file-dialog-button"},children:[this.buttonView,this._fileInputView]}),this.buttonView.on("execute",(()=>{this._fileInputView.open()}))}focus(){this.buttonView.focus()}}class Ef extends ig{constructor(t){super(t),this.set("acceptedType",void 0),this.set("allowMultipleFiles",!1);const e=this.bindTemplate;this.setTemplate({tag:"input",attributes:{class:["ck-hidden"],type:"file",tabindex:"-1",accept:e.to("acceptedType"),multiple:e.to("allowMultipleFiles")},on:{change:e.to((()=>{this.element&&this.element.files&&this.element.files.length&&this.fire("done",this.element.files),this.element.value=""}))}})}open(){this.element.click()}}Object.defineProperty,Object.defineProperties,Object.getOwnPropertyDescriptors,Object.getOwnPropertySymbols,Object.prototype.hasOwnProperty,Object.prototype.propertyIsEnumerable;const Tf="ckCsrfToken",Df="abcdefghijklmnopqrstuvwxyz0123456789";function Sf(){let t=function(t){t=t.toLowerCase();const e=document.cookie.split(";");for(const n of e){const e=n.split("=");if(decodeURIComponent(e[0].trim().toLowerCase())===t)return decodeURIComponent(e[1])}return null}(Tf);var e,n;return t&&40==t.length||(t=function(t){let e="";const n=new Uint8Array(t);window.crypto.getRandomValues(n);for(let t=0;t<n.length;t++){const o=Df.charAt(n[t]%Df.length);e+=Math.random()>.5?o.toUpperCase():o}return e}(40),e=Tf,n=t,document.cookie=encodeURIComponent(e)+"="+encodeURIComponent(n)+";path=/"),t}class Bf{constructor(t,e,n){this.loader=t,this.url=e,this.t=n}upload(){return this.loader.file.then((t=>new Promise(((e,n)=>{this._initRequest(),this._initListeners(e,n,t),this._sendRequest(t)}))))}abort(){this.xhr&&this.xhr.abort()}_initRequest(){const t=this.xhr=new XMLHttpRequest;t.open("POST",this.url,!0),t.responseType="json"}_initListeners(t,e,n){const o=this.xhr,i=this.loader,r=(0,this.t)("Cannot upload file:")+` ${n.name}.`;o.addEventListener("error",(()=>e(r))),o.addEventListener("abort",(()=>e())),o.addEventListener("load",(()=>{const n=o.response;if(!n||!n.uploaded)return e(n&&n.error&&n.error.message?n.error.message:r);t({default:n.url})})),o.upload&&o.upload.addEventListener("progress",(t=>{t.lengthComputable&&(i.uploadTotal=t.total,i.uploaded=t.loaded)}))}_sendRequest(t){const e=new FormData;e.append("upload",t),e.append("ckCsrfToken",Sf()),this.xhr.send(e)}}class If{constructor(t,e=20){this._batch=null,this.model=t,this._size=0,this.limit=e,this._isLocked=!1,this._changeCallback=(t,e)=>{e.isLocal&&e.isUndoable&&e!==this._batch&&this._reset(!0)},this._selectionChangeCallback=()=>{this._reset()},this.model.document.on("change",this._changeCallback),this.model.document.selection.on("change:range",this._selectionChangeCallback),this.model.document.selection.on("change:attribute",this._selectionChangeCallback)}get batch(){return this._batch||(this._batch=this.model.createBatch({isTyping:!0})),this._batch}get size(){return this._size}input(t){this._size+=t,this._size>=this.limit&&this._reset(!0)}get isLocked(){return this._isLocked}lock(){this._isLocked=!0}unlock(){this._isLocked=!1}destroy(){this.model.document.off("change",this._changeCallback),this.model.document.selection.off("change:range",this._selectionChangeCallback),this.model.document.selection.off("change:attribute",this._selectionChangeCallback)}_reset(t=!1){this.isLocked&&!t||(this._batch=null,this._size=0)}}class Pf extends zi{constructor(t,e){super(t),this._buffer=new If(t.model,e)}get buffer(){return this._buffer}destroy(){super.destroy(),this._buffer.destroy()}execute(t={}){const e=this.editor.model,n=e.document,o=t.text||"",i=o.length;let r=n.selection;t.selection?r=t.selection:t.range&&(r=e.createSelection(t.range));const s=t.resultRange;e.enqueueChange(this._buffer.batch,(t=>{this._buffer.lock(),e.deleteContent(r),o&&e.insertContent(t.createText(o,n.selection.getAttributes()),r),s?t.setSelection(s):r.is("documentSelection")||t.setSelection(r),this._buffer.unlock(),this._buffer.input(i)}))}}const Rf=["insertText","insertReplacementText"];class zf extends fa{constructor(t){super(t),i.isAndroid&&Rf.push("insertCompositionText");const e=t.document;e.on("beforeinput",((n,o)=>{if(!this.isEnabled)return;const{data:i,targetRanges:r,inputType:s,domEvent:a}=o;if(!Rf.includes(s))return;const l=new h(e,"insertText");e.fire(l,new ka(t,a,{text:i,selection:t.createSelection(r)})),l.stop.called&&n.stop()})),e.on("compositionend",((n,{data:o,domEvent:r})=>{this.isEnabled&&!i.isAndroid&&o&&e.fire("insertText",new ka(t,r,{text:o,selection:e.selection}))}),{priority:"lowest"})}observe(){}stopObserving(){}}class Vf extends Pi{static get pluginName(){return"Input"}init(){const t=this.editor,e=t.model,n=t.editing.view,o=e.document.selection;n.addObserver(zf);const r=new Pf(t,t.config.get("typing.undoStep")||20);t.commands.add("insertText",r),t.commands.add("input",r),this.listenTo(n.document,"insertText",((o,r)=>{n.document.isComposing||r.preventDefault();const{text:s,selection:a,resultRange:l}=r,c=Array.from(a.getRanges()).map((e=>t.editing.mapper.toModelRange(e)));let d=s;if(i.isAndroid){const t=Array.from(c[0].getItems()).reduce(((t,e)=>t+(e.is("$textProxy")?e.data:"")),"");t&&(t.length<=d.length?d.startsWith(t)&&(d=d.substring(t.length),c[0].start=c[0].start.getShiftedBy(t.length)):t.startsWith(d)&&(c[0].start=c[0].start.getShiftedBy(d.length),d=""))}const h={text:d,selection:e.createSelection(c)};l&&(h.resultRange=t.editing.mapper.toModelRange(l)),t.execute("insertText",h)})),i.isAndroid?this.listenTo(n.document,"keydown",((t,i)=>{!o.isCollapsed&&229==i.keyCode&&n.document.isComposing&&Of(e,r)})):this.listenTo(n.document,"compositionstart",(()=>{o.isCollapsed||Of(e,r)}))}}function Of(t,e){if(!e.isEnabled)return;const n=e.buffer;n.lock(),t.enqueueChange(n.batch,(()=>{t.deleteContent(t.document.selection)})),n.unlock()}class Ff extends zi{constructor(t,e){super(t),this.direction=e,this._buffer=new If(t.model,t.config.get("typing.undoStep"))}get buffer(){return this._buffer}execute(t={}){const e=this.editor.model,n=e.document;e.enqueueChange(this._buffer.batch,(o=>{this._buffer.lock();const i=o.createSelection(t.selection||n.selection),r=t.sequence||1,s=i.isCollapsed;if(i.isCollapsed&&e.modifySelection(i,{direction:this.direction,unit:t.unit,treatEmojiAsSingleUnit:!0}),this._shouldEntireContentBeReplacedWithParagraph(r))return void this._replaceEntireContentWithParagraph(o);if(this._shouldReplaceFirstBlockWithParagraph(i,r))return void this.editor.execute("paragraph",{selection:i});if(i.isCollapsed)return;let a=0;i.getFirstRange().getMinimalFlatRanges().forEach((t=>{a+=Z(t.getWalker({singleCharacters:!0,ignoreElementEnd:!0,shallow:!0}))})),e.deleteContent(i,{doNotResetEntireContent:s,direction:this.direction}),this._buffer.input(a),o.setSelection(i),this._buffer.unlock()}))}_shouldEntireContentBeReplacedWithParagraph(t){if(t>1)return!1;const e=this.editor.model,n=e.document.selection,o=e.schema.getLimitElement(n);if(!(n.isCollapsed&&n.containsEntireContent(o)))return!1;if(!e.schema.checkChild(o,"paragraph"))return!1;const i=o.getChild(0);return!i||!i.is("element","paragraph")}_replaceEntireContentWithParagraph(t){const e=this.editor.model,n=e.document.selection,o=e.schema.getLimitElement(n),i=t.createElement("paragraph");t.remove(t.createRangeIn(o)),t.insert(i,o),t.setSelection(i,0)}_shouldReplaceFirstBlockWithParagraph(t,e){const n=this.editor.model;if(e>1||"backward"!=this.direction)return!1;if(!t.isCollapsed)return!1;const o=t.getFirstPosition(),i=n.schema.getLimitElement(o),r=i.getChild(0);return o.parent==r&&(!!t.containsEntireContent(r)&&(!!n.schema.checkChild(i,"paragraph")&&"paragraph"!=r.name))}}const Nf="word",Mf="selection",Lf="backward",Hf="forward",jf={deleteContent:{unit:Mf,direction:Lf},deleteContentBackward:{unit:"codePoint",direction:Lf},deleteWordBackward:{unit:Nf,direction:Lf},deleteHardLineBackward:{unit:Mf,direction:Lf},deleteSoftLineBackward:{unit:Mf,direction:Lf},deleteContentForward:{unit:"character",direction:Hf},deleteWordForward:{unit:Nf,direction:Hf},deleteHardLineForward:{unit:Mf,direction:Hf},deleteSoftLineForward:{unit:Mf,direction:Hf}};class qf extends fa{constructor(t){super(t);const e=t.document;let n=0;e.on("keydown",(()=>{n++})),e.on("keyup",(()=>{n=0})),e.on("beforeinput",((o,r)=>{if(!this.isEnabled)return;const{targetRanges:s,domEvent:a,inputType:l}=r,c=jf[l];if(!c)return;const d={direction:c.direction,unit:c.unit,sequence:n};d.unit==Mf&&(d.selectionToRemove=t.createSelection(s[0])),"deleteContentBackward"===l&&(i.isAndroid&&(d.sequence=1),function(t){if(1!=t.length||t[0].isCollapsed)return!1;const e=t[0].getWalker({direction:"backward",singleCharacters:!0,ignoreElementEnd:!0});let n=0;for(const{nextPosition:t}of e){if(t.parent.is("$text")){const e=t.parent.data,o=t.offset;if(Di(e,o)||Si(e,o)||Ii(e,o))continue;n++}else n++;if(n>1)return!0}return!1}(s)&&(d.unit=Mf,d.selectionToRemove=t.createSelection(s)));const h=new ms(e,"delete",s[0]);e.fire(h,new ka(t,a,d)),h.stop.called&&o.stop()})),i.isBlink&&function(t){const e=t.view,n=e.document;let o=null,i=!1;function r(t){return t==ui.backspace||t==ui.delete}function s(t){return t==ui.backspace?Lf:Hf}n.on("keydown",((t,{keyCode:e})=>{o=e,i=!1})),n.on("keyup",((a,{keyCode:l,domEvent:c})=>{const d=n.selection,h=t.isEnabled&&l==o&&r(l)&&!d.isCollapsed&&!i;if(o=null,h){const t=d.getFirstRange(),o=new ms(n,"delete",t),i={unit:Mf,direction:s(l),selectionToRemove:d};n.fire(o,new ka(e,c,i))}})),n.on("beforeinput",((t,{inputType:e})=>{const n=jf[e];r(o)&&n&&n.direction==s(o)&&(i=!0)}),{priority:"high"}),n.on("beforeinput",((t,{inputType:e,data:n})=>{o==ui.delete&&"insertText"==e&&""==n&&t.stop()}),{priority:"high"})}(this)}observe(){}stopObserving(){}}class Wf extends Pi{static get pluginName(){return"Delete"}init(){const t=this.editor,e=t.editing.view,n=e.document,o=t.model.document;e.addObserver(qf),this._undoOnBackspace=!1;const i=new Ff(t,"forward");t.commands.add("deleteForward",i),t.commands.add("forwardDelete",i),t.commands.add("delete",new Ff(t,"backward")),this.listenTo(n,"delete",((o,i)=>{n.isComposing||i.preventDefault();const{direction:r,sequence:s,selectionToRemove:a,unit:l}=i,c="forward"===r?"deleteForward":"delete",d={sequence:s};if("selection"==l){const e=Array.from(a.getRanges()).map((e=>t.editing.mapper.toModelRange(e)));d.selection=t.model.createSelection(e)}else d.unit=l;t.execute(c,d),e.scrollToTheSelection()}),{priority:"low"}),this.editor.plugins.has("UndoEditing")&&(this.listenTo(n,"delete",((e,n)=>{this._undoOnBackspace&&"backward"==n.direction&&1==n.sequence&&"codePoint"==n.unit&&(this._undoOnBackspace=!1,t.execute("undo"),n.preventDefault(),e.stop())}),{context:"$capture"}),this.listenTo(o,"change",(()=>{this._undoOnBackspace=!1})))}requestUndoOnBackspace(){this.editor.plugins.has("UndoEditing")&&(this._undoOnBackspace=!0)}}function Uf(t,e){let n=t.start;return{text:Array.from(t.getItems()).reduce(((t,o)=>o.is("$text")||o.is("$textProxy")?t+o.data:(n=e.createPositionAfter(o),"")),""),range:e.createRange(n,t.end)}}class $f extends(j()){constructor(t,e){super(),this.model=t,this.testCallback=e,this._hasMatch=!1,this.set("isEnabled",!0),this.on("change:isEnabled",(()=>{this.isEnabled?this._startListening():(this.stopListening(t.document.selection),this.stopListening(t.document))})),this._startListening()}get hasMatch(){return this._hasMatch}_startListening(){const t=this.model.document;this.listenTo(t.selection,"change:range",((e,{directChange:n})=>{n&&(t.selection.isCollapsed?this._evaluateTextBeforeSelection("selection"):this.hasMatch&&(this.fire("unmatched"),this._hasMatch=!1))})),this.listenTo(t,"change:data",((t,e)=>{!e.isUndo&&e.isLocal&&this._evaluateTextBeforeSelection("data",{batch:e})}))}_evaluateTextBeforeSelection(t,e={}){const n=this.model,o=n.document.selection,i=n.createRange(n.createPositionAt(o.focus.parent,0),o.focus),{text:r,range:s}=Uf(i,n),a=this.testCallback(r);if(!a&&this.hasMatch&&this.fire("unmatched"),this._hasMatch=!!a,a){const n=Object.assign(e,{text:r,range:s});"object"==typeof a&&Object.assign(n,a),this.fire(`matched:${t}`,n)}}}class Gf extends Pi{constructor(t){super(t),this.attributes=new Set,this._overrideUid=null}static get pluginName(){return"TwoStepCaretMovement"}init(){const t=this.editor,e=t.model,n=t.editing.view,o=t.locale,i=e.document.selection;this.listenTo(n.document,"arrowKey",((t,e)=>{if(!i.isCollapsed)return;if(e.shiftKey||e.altKey||e.ctrlKey)return;const n=e.keyCode==ui.arrowright,r=e.keyCode==ui.arrowleft;if(!n&&!r)return;const s=o.contentLanguageDirection;let a=!1;a="ltr"===s&&n||"rtl"===s&&r?this._handleForwardMovement(e):this._handleBackwardMovement(e),!0===a&&t.stop()}),{context:"$text",priority:"highest"}),this._isNextGravityRestorationSkipped=!1,this.listenTo(i,"change:range",((t,e)=>{this._isNextGravityRestorationSkipped?this._isNextGravityRestorationSkipped=!1:this._isGravityOverridden&&(!e.directChange&&Yf(i.getFirstPosition(),this.attributes)||this._restoreGravity())}))}registerAttribute(t){this.attributes.add(t)}_handleForwardMovement(t){const e=this.attributes,n=this.editor.model.document.selection,o=n.getFirstPosition();return!this._isGravityOverridden&&((!o.isAtStart||!Kf(n,e))&&(!!Yf(o,e)&&(Jf(t),this._overrideGravity(),!0)))}_handleBackwardMovement(t){const e=this.attributes,n=this.editor.model,o=n.document.selection,i=o.getFirstPosition();return this._isGravityOverridden?(Jf(t),this._restoreGravity(),Zf(n,e,i),!0):i.isAtStart?!!Kf(o,e)&&(Jf(t),Zf(n,e,i),!0):!!function(t,e){const n=t.getShiftedBy(-1);return Yf(n,e)}(i,e)&&(i.isAtEnd&&!Kf(o,e)&&Yf(i,e)?(Jf(t),Zf(n,e,i),!0):(this._isNextGravityRestorationSkipped=!0,this._overrideGravity(),!1))}get _isGravityOverridden(){return!!this._overrideUid}_overrideGravity(){this._overrideUid=this.editor.model.change((t=>t.overrideSelectionGravity()))}_restoreGravity(){this.editor.model.change((t=>{t.restoreSelectionGravity(this._overrideUid),this._overrideUid=null}))}}function Kf(t,e){for(const n of e)if(t.hasAttribute(n))return!0;return!1}function Zf(t,e,n){const o=n.nodeBefore;t.change((t=>{o?t.setSelectionAttribute(o.getAttributes()):t.removeSelectionAttribute(e)}))}function Jf(t){t.preventDefault()}function Yf(t,e){const{nodeBefore:n,nodeAfter:o}=t;for(const t of e){const e=n?n.getAttribute(t):void 0;if((o?o.getAttribute(t):void 0)!==e)return!0}return!1}const Qf={copyright:{from:"(c)",to:"©"},registeredTrademark:{from:"(r)",to:"®"},trademark:{from:"(tm)",to:"™"},oneHalf:{from:/(^|[^/a-z0-9])(1\/2)([^/a-z0-9])$/i,to:[null,"½",null]},oneThird:{from:/(^|[^/a-z0-9])(1\/3)([^/a-z0-9])$/i,to:[null,"⅓",null]},twoThirds:{from:/(^|[^/a-z0-9])(2\/3)([^/a-z0-9])$/i,to:[null,"⅔",null]},oneForth:{from:/(^|[^/a-z0-9])(1\/4)([^/a-z0-9])$/i,to:[null,"¼",null]},threeQuarters:{from:/(^|[^/a-z0-9])(3\/4)([^/a-z0-9])$/i,to:[null,"¾",null]},lessThanOrEqual:{from:"<=",to:"≤"},greaterThanOrEqual:{from:">=",to:"≥"},notEqual:{from:"!=",to:"≠"},arrowLeft:{from:"<-",to:"←"},arrowRight:{from:"->",to:"→"},horizontalEllipsis:{from:"...",to:"…"},enDash:{from:/(^| )(--)( )$/,to:[null,"–",null]},emDash:{from:/(^| )(---)( )$/,to:[null,"—",null]},quotesPrimary:{from:ib('"'),to:[null,"“",null,"”"]},quotesSecondary:{from:ib("'"),to:[null,"‘",null,"’"]},quotesPrimaryEnGb:{from:ib("'"),to:[null,"‘",null,"’"]},quotesSecondaryEnGb:{from:ib('"'),to:[null,"“",null,"”"]},quotesPrimaryPl:{from:ib('"'),to:[null,"„",null,"”"]},quotesSecondaryPl:{from:ib("'"),to:[null,"‚",null,"’"]}},Xf={symbols:["copyright","registeredTrademark","trademark"],mathematical:["oneHalf","oneThird","twoThirds","oneForth","threeQuarters","lessThanOrEqual","greaterThanOrEqual","notEqual","arrowLeft","arrowRight"],typography:["horizontalEllipsis","enDash","emDash"],quotes:["quotesPrimary","quotesSecondary"]},tb=["symbols","mathematical","typography","quotes"];function eb(t){return"string"==typeof t?new RegExp(`(${ff(t)})$`):t}function nb(t){return"string"==typeof t?()=>[t]:t instanceof Array?()=>t:t}function ob(t){return(t.textNode?t.textNode:t.nodeAfter).getAttributes()}function ib(t){return new RegExp(`(^|\\s)(${t})([^${t}]*)(${t})$`)}function rb(t,e,n,o){return o.createRange(sb(t,e,n,!0,o),sb(t,e,n,!1,o))}function sb(t,e,n,o,i){let r=t.textNode||(o?t.nodeBefore:t.nodeAfter),s=null;for(;r&&r.getAttribute(e)==n;)s=r,r=o?r.previousSibling:r.nextSibling;return s?i.createPositionAt(s,o?"before":"after"):t}function ab(t,e,n,o){const i=t.editing.view,r=new Set;i.document.registerPostFixer((i=>{const s=t.model.document.selection;let a=!1;if(s.hasAttribute(e)){const l=rb(s.getFirstPosition(),e,s.getAttribute(e),t.model),c=t.editing.mapper.toViewRange(l);for(const t of c.getItems())t.is("element",n)&&!t.hasClass(o)&&(i.addClass(o,t),r.add(t),a=!0)}return a})),t.conversion.for("editingDowncast").add((t=>{function e(){i.change((t=>{for(const e of r.values())t.removeClass(o,e),r.delete(e)}))}t.on("insert",e,{priority:"highest"}),t.on("remove",e,{priority:"highest"}),t.on("attribute",e,{priority:"highest"}),t.on("selection",e,{priority:"highest"})}))}function lb(t,e,n,o){let i,r=null;"function"==typeof o?i=o:(r=t.commands.get(o),i=()=>{t.execute(o)}),t.model.document.on("change:data",((s,a)=>{if(r&&!r.isEnabled||!e.isEnabled)return;const l=yi(t.model.document.selection.getRanges());if(!l.isCollapsed)return;if(a.isUndo||!a.isLocal)return;const c=Array.from(t.model.document.differ.getChanges()),d=c[0];if(1!=c.length||"insert"!==d.type||"$text"!=d.name||1!=d.length)return;const h=d.position.parent;if(h.is("element","codeBlock"))return;if(h.is("element","listItem")&&"function"!=typeof o&&!["numberedList","bulletedList","todoList"].includes(o))return;if(r&&!0===r.value)return;const u=h.getChild(0),g=t.model.createRangeOn(u);if(!g.containsRange(l)&&!l.end.isEqual(g.end))return;const m=n.exec(u.data.substr(0,l.end.offset));m&&t.model.enqueueChange((e=>{const n=e.createPositionAt(h,0),o=e.createPositionAt(h,m[0].length),r=new Jl(n,o);if(!1!==i({match:m})){e.remove(r);const n=t.model.document.selection.getFirstRange(),o=e.createRangeIn(h);!h.isEmpty||o.isEqual(n)||o.containsRange(n,!0)||e.remove(h)}r.detach(),t.model.enqueueChange((()=>{t.plugins.get("Delete").requestUndoOnBackspace()}))}))}))}function cb(t,e,n,o){let i,r;n instanceof RegExp?i=n:r=n,r=r||(t=>{let e;const n=[],o=[];for(;null!==(e=i.exec(t))&&!(e&&e.length<4);){let{index:t,1:i,2:r,3:s}=e;const a=i+r+s;t+=e[0].length-a.length;const l=[t,t+i.length],c=[t+i.length+r.length,t+i.length+r.length+s.length];n.push(l),n.push(c),o.push([t+i.length,t+i.length+r.length])}return{remove:n,format:o}}),t.model.document.on("change:data",((n,i)=>{if(i.isUndo||!i.isLocal||!e.isEnabled)return;const s=t.model,a=s.document.selection;if(!a.isCollapsed)return;const l=Array.from(s.document.differ.getChanges()),c=l[0];if(1!=l.length||"insert"!==c.type||"$text"!=c.name||1!=c.length)return;const d=a.focus,h=d.parent,{text:u,range:g}=function(t,e){let n=t.start;const o=Array.from(t.getItems()).reduce(((t,o)=>!o.is("$text")&&!o.is("$textProxy")||o.getAttribute("code")?(n=e.createPositionAfter(o),""):t+o.data),"");return{text:o,range:e.createRange(n,t.end)}}(s.createRange(s.createPositionAt(h,0),d),s),m=r(u),p=db(g.start,m.format,s),f=db(g.start,m.remove,s);p.length&&f.length&&s.enqueueChange((e=>{if(!1!==o(e,p)){for(const t of f.reverse())e.remove(t);s.enqueueChange((()=>{t.plugins.get("Delete").requestUndoOnBackspace()}))}}))}))}function db(t,e,n){return e.filter((t=>void 0!==t[0]&&void 0!==t[1])).map((e=>n.createRange(t.getShiftedBy(e[0]),t.getShiftedBy(e[1]))))}function hb(t,e){return(n,o)=>{if(!t.commands.get(e).isEnabled)return!1;const i=t.model.schema.getValidRanges(o,e);for(const t of i)n.setAttribute(e,!0,t);n.removeSelectionAttribute(e)}}class ub extends zi{constructor(t,e){super(t),this.attributeKey=e}refresh(){const t=this.editor.model,e=t.document;this.value=this._getValueFromFirstAllowedNode(),this.isEnabled=t.schema.checkAttributeInSelection(e.selection,this.attributeKey)}execute(t={}){const e=this.editor.model,n=e.document.selection,o=void 0===t.forceValue?!this.value:t.forceValue;e.change((t=>{if(n.isCollapsed)o?t.setSelectionAttribute(this.attributeKey,!0):t.removeSelectionAttribute(this.attributeKey);else{const i=e.schema.getValidRanges(n.getRanges(),this.attributeKey);for(const e of i)o?t.setAttribute(this.attributeKey,o,e):t.removeAttribute(this.attributeKey,e)}}))}_getValueFromFirstAllowedNode(){const t=this.editor.model,e=t.schema,n=t.document.selection;if(n.isCollapsed)return n.hasAttribute(this.attributeKey);for(const t of n.getRanges())for(const n of t.getItems())if(e.checkAttribute(n,this.attributeKey))return n.hasAttribute(this.attributeKey);return!1}}const gb="bold";class mb extends Pi{static get pluginName(){return"BoldEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:gb}),t.model.schema.setAttributeProperties(gb,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:gb,view:"strong",upcastAlso:["b",t=>{const e=t.getStyle("font-weight");return e&&("bold"==e||Number(e)>=600)?{name:!0,styles:["font-weight"]}:null}]}),t.commands.add(gb,new ub(t,gb)),t.keystrokes.set("CTRL+B",gb)}}const pb="bold";class fb extends Pi{static get pluginName(){return"BoldUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(pb,(n=>{const o=t.commands.get(pb),i=new Rg(n);return i.set({label:e("Bold"),icon:Ju.bold,keystroke:"CTRL+B",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(pb),t.editing.view.focus()})),i}))}}const bb="italic";class kb extends Pi{static get pluginName(){return"ItalicEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:bb}),t.model.schema.setAttributeProperties(bb,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:bb,view:"i",upcastAlso:["em",{styles:{"font-style":"italic"}}]}),t.commands.add(bb,new ub(t,bb)),t.keystrokes.set("CTRL+I",bb)}}const wb="italic";class _b extends Pi{static get pluginName(){return"ItalicUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(wb,(n=>{const o=t.commands.get(wb),i=new Rg(n);return i.set({label:e("Italic"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m9.586 14.633.021.004c-.036.335.095.655.393.962.082.083.173.15.274.201h1.474a.6.6 0 1 1 0 1.2H5.304a.6.6 0 0 1 0-1.2h1.15c.474-.07.809-.182 1.005-.334.157-.122.291-.32.404-.597l2.416-9.55a1.053 1.053 0 0 0-.281-.823 1.12 1.12 0 0 0-.442-.296H8.15a.6.6 0 0 1 0-1.2h6.443a.6.6 0 1 1 0 1.2h-1.195c-.376.056-.65.155-.823.296-.215.175-.423.439-.623.79l-2.366 9.347z"/></svg>',keystroke:"CTRL+I",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(wb),t.editing.view.focus()})),i}))}}const Ab="superscript";class Cb extends Pi{static get pluginName(){return"SuperscriptEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:Ab}),t.model.schema.setAttributeProperties(Ab,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:Ab,view:"sup",upcastAlso:[{styles:{"vertical-align":"super"}}]}),t.commands.add(Ab,new ub(t,Ab))}}const vb="superscript";class yb extends Pi{static get pluginName(){return"SuperscriptUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(vb,(n=>{const o=t.commands.get(vb),i=new Rg(n);return i.set({label:e("Superscript"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M15.677 8.678h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 1-.159.393c-.105.108-.266.162-.48.162h-3.594c-.245 0-.435-.066-.572-.197a.621.621 0 0 1-.205-.463c0-.114.044-.265.132-.453a1.62 1.62 0 0 1 .288-.444c.433-.436.824-.81 1.172-1.122.348-.312.597-.517.747-.615.267-.183.49-.368.667-.553.177-.185.312-.375.405-.57.093-.194.139-.384.139-.57a1.008 1.008 0 0 0-.554-.917 1.197 1.197 0 0 0-.56-.133c-.426 0-.761.182-1.005.546a2.332 2.332 0 0 0-.164.39 1.609 1.609 0 0 1-.258.488c-.096.114-.237.17-.423.17a.558.558 0 0 1-.405-.156.568.568 0 0 1-.161-.427c0-.218.05-.446.151-.683.101-.238.252-.453.452-.646s.454-.349.762-.467a2.998 2.998 0 0 1 1.081-.178c.498 0 .923.076 1.274.228a1.916 1.916 0 0 1 1.004 1.032 1.984 1.984 0 0 1-.156 1.794c-.2.32-.405.572-.613.754-.208.182-.558.468-1.048.857-.49.39-.826.691-1.008.906a2.703 2.703 0 0 0-.24.309zM7.03 10.349l3.818-3.819a.8.8 0 1 1 1.132 1.132L8.16 11.48l3.819 3.818a.8.8 0 1 1-1.132 1.132L7.03 12.61l-3.818 3.82a.8.8 0 1 1-1.132-1.132L5.9 11.48 2.08 7.662A.8.8 0 1 1 3.212 6.53l3.818 3.82z"/></svg>',tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(vb),t.editing.view.focus()})),i}))}}const xb="subscript";class Eb extends Pi{static get pluginName(){return"SubscriptEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:xb}),t.model.schema.setAttributeProperties(xb,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:xb,view:"sub",upcastAlso:[{styles:{"vertical-align":"sub"}}]}),t.commands.add(xb,new ub(t,xb))}}const Tb="subscript";class Db extends Pi{static get pluginName(){return"SubscriptUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(Tb,(n=>{const o=t.commands.get(Tb),i=new Rg(n);return i.set({label:e("Subscript"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m7.03 10.349 3.818-3.819a.8.8 0 1 1 1.132 1.132L8.16 11.48l3.819 3.818a.8.8 0 1 1-1.132 1.132L7.03 12.61l-3.818 3.82a.8.8 0 1 1-1.132-1.132L5.9 11.48 2.08 7.662A.8.8 0 1 1 3.212 6.53l3.818 3.82zm8.147 7.829h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 1-.159.393c-.105.108-.266.162-.48.162h-3.594c-.245 0-.435-.066-.572-.197a.621.621 0 0 1-.205-.463c0-.114.044-.265.132-.453a1.62 1.62 0 0 1 .288-.444c.433-.436.824-.81 1.172-1.122.348-.312.597-.517.747-.615.267-.183.49-.368.667-.553.177-.185.312-.375.405-.57.093-.194.139-.384.139-.57a1.008 1.008 0 0 0-.554-.917 1.197 1.197 0 0 0-.56-.133c-.426 0-.761.182-1.005.546a2.332 2.332 0 0 0-.164.39 1.609 1.609 0 0 1-.258.488c-.096.114-.237.17-.423.17a.558.558 0 0 1-.405-.156.568.568 0 0 1-.161-.427c0-.218.05-.446.151-.683.101-.238.252-.453.452-.646s.454-.349.762-.467a2.998 2.998 0 0 1 1.081-.178c.498 0 .923.076 1.274.228a1.916 1.916 0 0 1 1.004 1.032 1.984 1.984 0 0 1-.156 1.794c-.2.32-.405.572-.613.754-.208.182-.558.468-1.048.857-.49.39-.826.691-1.008.906a2.703 2.703 0 0 0-.24.309z"/></svg>',tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(Tb),t.editing.view.focus()})),i}))}}const Sb="underline";class Bb extends Pi{static get pluginName(){return"UnderlineEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:Sb}),t.model.schema.setAttributeProperties(Sb,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:Sb,view:"u",upcastAlso:{styles:{"text-decoration":"underline"}}}),t.commands.add(Sb,new ub(t,Sb)),t.keystrokes.set("CTRL+U","underline")}}const Ib="underline";class Pb extends Pi{static get pluginName(){return"UnderlineUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(Ib,(n=>{const o=t.commands.get(Ib),i=new Rg(n);return i.set({label:e("Underline"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M3 18v-1.5h14V18zm2.2-8V3.6c0-.4.4-.6.8-.6.3 0 .7.2.7.6v6.2c0 2 1.3 2.8 3.2 2.8 1.9 0 3.4-.9 3.4-2.9V3.6c0-.3.4-.5.8-.5.3 0 .7.2.7.5V10c0 2.7-2.2 4-4.9 4-2.6 0-4.7-1.2-4.7-4z"/></svg>',keystroke:"CTRL+U",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(Ib),t.editing.view.focus()})),i}))}}const Rb="strikethrough";class zb extends Pi{static get pluginName(){return"StrikethroughEditing"}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:Rb}),t.model.schema.setAttributeProperties(Rb,{isFormatting:!0,copyOnEnter:!0}),t.conversion.attributeToElement({model:Rb,view:"s",upcastAlso:["del","strike",{styles:{"text-decoration":"line-through"}}]}),t.commands.add(Rb,new ub(t,Rb)),t.keystrokes.set("CTRL+SHIFT+X","strikethrough")}}const Vb="strikethrough";class Ob extends Pi{static get pluginName(){return"StrikethroughUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(Vb,(n=>{const o=t.commands.get(Vb),i=new Rg(n);return i.set({label:e("Strikethrough"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M7 16.4c-.8-.4-1.5-.9-2.2-1.5a.6.6 0 0 1-.2-.5l.3-.6h1c1 1.2 2.1 1.7 3.7 1.7 1 0 1.8-.3 2.3-.6.6-.4.6-1.2.6-1.3.2-1.2-.9-2.1-.9-2.1h2.1c.3.7.4 1.2.4 1.7v.8l-.6 1.2c-.6.8-1.1 1-1.6 1.2a6 6 0 0 1-2.4.6c-1 0-1.8-.3-2.5-.6zM6.8 9 6 8.3c-.4-.5-.5-.8-.5-1.6 0-.7.1-1.3.5-1.8.4-.6 1-1 1.6-1.3a6.3 6.3 0 0 1 4.7 0 4 4 0 0 1 1.7 1l.3.7c0 .1.2.4-.2.7-.4.2-.9.1-1 0a3 3 0 0 0-1.2-1c-.4-.2-1-.3-2-.4-.7 0-1.4.2-2 .6-.8.6-1 .8-1 1.5 0 .8.5 1 1.2 1.5.6.4 1.1.7 1.9 1H6.8z"/><path d="M3 10.5V9h14v1.5z"/></svg>',keystroke:"CTRL+SHIFT+X",tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(Vb),t.editing.view.focus()})),i}))}}const Fb="code";class Nb extends Pi{static get pluginName(){return"CodeEditing"}static get requires(){return[Gf]}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:Fb}),t.model.schema.setAttributeProperties(Fb,{isFormatting:!0,copyOnEnter:!1}),t.conversion.attributeToElement({model:Fb,view:"code",upcastAlso:{styles:{"word-wrap":"break-word"}}}),t.commands.add(Fb,new ub(t,Fb)),t.plugins.get(Gf).registerAttribute(Fb),ab(t,Fb,"code","ck-code_selected")}}var Mb=n(8603),Lb={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Mb.Z,Lb);Mb.Z.locals;const Hb="code";class jb extends Pi{static get pluginName(){return"CodeUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(Hb,(n=>{const o=t.commands.get(Hb),i=new Rg(n);return i.set({label:e("Code"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m12.5 5.7 5.2 3.9v1.3l-5.6 4c-.1.2-.3.2-.5.2-.3-.1-.6-.7-.6-1l.3-.4 4.7-3.5L11.5 7l-.2-.2c-.1-.3-.1-.6 0-.8.2-.2.5-.4.8-.4a.8.8 0 0 1 .4.1zm-5.2 0L2 9.6v1.3l5.6 4c.1.2.3.2.5.2.3-.1.7-.7.6-1 0-.1 0-.3-.2-.4l-5-3.5L8.2 7l.2-.2c.1-.3.1-.6 0-.8-.2-.2-.5-.4-.8-.4a.8.8 0 0 0-.3.1z"/></svg>',tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(Hb),t.editing.view.focus()})),i}))}}function*qb(t,e){for(const n of e)n&&t.getAttributeProperties(n[0]).copyOnEnter&&(yield n)}class Wb extends zi{execute(){this.editor.model.change((t=>{this.enterBlock(t),this.fire("afterExecute",{writer:t})}))}enterBlock(t){const e=this.editor.model,n=e.document.selection,o=e.schema,i=n.isCollapsed,r=n.getFirstRange(),s=r.start.parent,a=r.end.parent;if(o.isLimit(s)||o.isLimit(a))return i||s!=a||e.deleteContent(n),!1;if(i){const e=qb(t.model.schema,n.getAttributes());return Ub(t,r.start),t.setSelectionAttribute(e),!0}{const o=!(r.start.isAtStart&&r.end.isAtEnd),i=s==a;if(e.deleteContent(n,{leaveUnmerged:o}),o){if(i)return Ub(t,n.focus),!0;t.setSelection(a,0)}}return!1}}function Ub(t,e){t.split(e),t.setSelection(e.parent.nextSibling,0)}const $b={insertParagraph:{isSoft:!1},insertLineBreak:{isSoft:!0}};class Gb extends fa{constructor(t){super(t);const e=this.document;let n=!1;e.on("keydown",((t,e)=>{n=e.shiftKey})),e.on("beforeinput",((o,r)=>{if(!this.isEnabled)return;let s=r.inputType;i.isSafari&&n&&"insertParagraph"==s&&(s="insertLineBreak");const a=r.domEvent,l=$b[s];if(!l)return;const c=new ms(e,"enter",r.targetRanges[0]);e.fire(c,new ka(t,a,{isSoft:l.isSoft})),c.stop.called&&o.stop()}))}observe(){}stopObserving(){}}class Kb extends Pi{static get pluginName(){return"Enter"}init(){const t=this.editor,e=t.editing.view,n=e.document;e.addObserver(Gb),t.commands.add("enter",new Wb(t)),this.listenTo(n,"enter",((o,i)=>{n.isComposing||i.preventDefault(),i.isSoft||(t.execute("enter"),e.scrollToTheSelection())}),{priority:"low"})}}class Zb extends zi{execute(){const t=this.editor.model,e=t.document;t.change((n=>{!function(t,e,n){const o=n.isCollapsed,i=n.getFirstRange(),r=i.start.parent,s=i.end.parent,a=r==s;if(o){const o=qb(t.schema,n.getAttributes());Jb(t,e,i.end),e.removeSelectionAttribute(n.getAttributeKeys()),e.setSelectionAttribute(o)}else{const o=!(i.start.isAtStart&&i.end.isAtEnd);t.deleteContent(n,{leaveUnmerged:o}),a?Jb(t,e,n.focus):o&&e.setSelection(s,0)}}(t,n,e.selection),this.fire("afterExecute",{writer:n})}))}refresh(){const t=this.editor.model,e=t.document;this.isEnabled=function(t,e){if(e.rangeCount>1)return!1;const n=e.anchor;if(!n||!t.checkChild(n,"softBreak"))return!1;const o=e.getFirstRange(),i=o.start.parent,r=o.end.parent;if((Yb(i,t)||Yb(r,t))&&i!==r)return!1;return!0}(t.schema,e.selection)}}function Jb(t,e,n){const o=e.createElement("softBreak");t.insertContent(o,n),e.setSelection(o,"after")}function Yb(t,e){return!t.is("rootElement")&&(e.isLimit(t)||Yb(t.parent,e))}class Qb extends Pi{static get pluginName(){return"ShiftEnter"}init(){const t=this.editor,e=t.model.schema,n=t.conversion,o=t.editing.view,i=o.document;e.register("softBreak",{allowWhere:"$text",isInline:!0}),n.for("upcast").elementToElement({model:"softBreak",view:"br"}),n.for("downcast").elementToElement({model:"softBreak",view:(t,{writer:e})=>e.createEmptyElement("br")}),o.addObserver(Gb),t.commands.add("shiftEnter",new Zb(t)),this.listenTo(i,"enter",((e,n)=>{i.isComposing||n.preventDefault(),n.isSoft&&(t.execute("shiftEnter"),o.scrollToTheSelection())}),{priority:"low"})}}class Xb extends zi{refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){const e=this.editor.model,n=e.schema,o=e.document.selection,i=Array.from(o.getSelectedBlocks()),r=void 0===t.forceValue?!this.value:t.forceValue;e.change((t=>{if(r){const e=i.filter((t=>tk(t)||nk(n,t)));this._applyQuote(t,e)}else this._removeQuote(t,i.filter(tk))}))}_getValue(){const t=yi(this.editor.model.document.selection.getSelectedBlocks());return!(!t||!tk(t))}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=yi(t.getSelectedBlocks());return!!n&&nk(e,n)}_removeQuote(t,e){ek(t,e).reverse().forEach((e=>{if(e.start.isAtStart&&e.end.isAtEnd)return void t.unwrap(e.start.parent);if(e.start.isAtStart){const n=t.createPositionBefore(e.start.parent);return void t.move(e,n)}e.end.isAtEnd||t.split(e.end);const n=t.createPositionAfter(e.end.parent);t.move(e,n)}))}_applyQuote(t,e){const n=[];ek(t,e).reverse().forEach((e=>{let o=tk(e.start);o||(o=t.createElement("blockQuote"),t.wrap(e,o)),n.push(o)})),n.reverse().reduce(((e,n)=>e.nextSibling==n?(t.merge(t.createPositionAfter(e)),e):n))}}function tk(t){return"blockQuote"==t.parent.name?t.parent:null}function ek(t,e){let n,o=0;const i=[];for(;o<e.length;){const r=e[o],s=e[o+1];n||(n=t.createPositionBefore(r)),s&&r.nextSibling==s||(i.push(t.createRange(n,t.createPositionAfter(r))),n=null),o++}return i}function nk(t,e){const n=t.checkChild(e.parent,"blockQuote"),o=t.checkChild(["$root","blockQuote"],e);return n&&o}class ok extends Pi{static get pluginName(){return"BlockQuoteEditing"}static get requires(){return[Kb,Wf]}init(){const t=this.editor,e=t.model.schema;t.commands.add("blockQuote",new Xb(t)),e.register("blockQuote",{inheritAllFrom:"$container"}),t.conversion.elementToElement({model:"blockQuote",view:"blockquote"}),t.model.document.registerPostFixer((n=>{const o=t.model.document.differ.getChanges();for(const t of o)if("insert"==t.type){const o=t.position.nodeAfter;if(!o)continue;if(o.is("element","blockQuote")&&o.isEmpty)return n.remove(o),!0;if(o.is("element","blockQuote")&&!e.checkChild(t.position,o))return n.unwrap(o),!0;if(o.is("element")){const t=n.createRangeIn(o);for(const o of t.getItems())if(o.is("element","blockQuote")&&!e.checkChild(n.createPositionBefore(o),o))return n.unwrap(o),!0}}else if("remove"==t.type){const e=t.position.parent;if(e.is("element","blockQuote")&&e.isEmpty)return n.remove(e),!0}return!1}));const n=this.editor.editing.view.document,o=t.model.document.selection,i=t.commands.get("blockQuote");this.listenTo(n,"enter",((e,n)=>{if(!o.isCollapsed||!i.value)return;o.getLastPosition().parent.isEmpty&&(t.execute("blockQuote"),t.editing.view.scrollToTheSelection(),n.preventDefault(),e.stop())}),{context:"blockquote"}),this.listenTo(n,"delete",((e,n)=>{if("backward"!=n.direction||!o.isCollapsed||!i.value)return;const r=o.getLastPosition().parent;r.isEmpty&&!r.previousSibling&&(t.execute("blockQuote"),t.editing.view.scrollToTheSelection(),n.preventDefault(),e.stop())}),{context:"blockquote"})}}var ik=n(3062),rk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(ik.Z,rk);ik.Z.locals;class sk extends Pi{static get pluginName(){return"BlockQuoteUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("blockQuote",(n=>{const o=t.commands.get("blockQuote"),i=new Rg(n);return i.set({label:e("Block quote"),icon:Ju.quote,tooltip:!0,isToggleable:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute("blockQuote"),t.editing.view.focus()})),i}))}}class ak extends zi{refresh(){const t=this.editor.model,e=yi(t.document.selection.getSelectedBlocks());this.value=!!e&&e.is("element","paragraph"),this.isEnabled=!!e&&lk(e,t.schema)}execute(t={}){const e=this.editor.model,n=e.document;e.change((o=>{const i=(t.selection||n.selection).getSelectedBlocks();for(const t of i)!t.is("element","paragraph")&&lk(t,e.schema)&&o.rename(t,"paragraph")}))}}function lk(t,e){return e.checkChild(t.parent,"paragraph")&&!e.isObject(t)}class ck extends zi{execute(t){const e=this.editor.model,n=t.attributes;let o=t.position;e.change((t=>{const i=t.createElement("paragraph");if(n&&e.schema.setAllowedAttributes(i,n,t),!e.schema.checkChild(o.parent,i)){const n=e.schema.findAllowedParent(o,i);if(!n)return;o=t.split(o,n).position}e.insertContent(i,o),t.setSelection(i,"in")}))}}const dk=class extends Pi{static get pluginName(){return"Paragraph"}init(){const t=this.editor,e=t.model;t.commands.add("paragraph",new ak(t)),t.commands.add("insertParagraph",new ck(t)),e.schema.register("paragraph",{inheritAllFrom:"$block"}),t.conversion.elementToElement({model:"paragraph",view:"p"}),t.conversion.for("upcast").elementToElement({model:(t,{writer:e})=>dk.paragraphLikeElements.has(t.name)?t.isEmpty?null:e.createElement("paragraph"):null,view:/.+/,converterPriority:"low"})}};let hk=dk;hk.paragraphLikeElements=new Set(["blockquote","dd","div","dt","h1","h2","h3","h4","h5","h6","li","p","td","th"]);const uk=Ju.paragraph;class gk extends zi{constructor(t,e){super(t),this.modelElements=e}refresh(){const t=yi(this.editor.model.document.selection.getSelectedBlocks());this.value=!!t&&this.modelElements.includes(t.name)&&t.name,this.isEnabled=!!t&&this.modelElements.some((e=>mk(t,e,this.editor.model.schema)))}execute(t){const e=this.editor.model,n=e.document,o=t.value;e.change((t=>{const i=Array.from(n.selection.getSelectedBlocks()).filter((t=>mk(t,o,e.schema)));for(const e of i)e.is("element",o)||t.rename(e,o)}))}}function mk(t,e,n){return n.checkChild(t.parent,e)&&!n.isObject(t)}const pk="paragraph";class fk extends Pi{static get pluginName(){return"HeadingEditing"}constructor(t){super(t),t.config.define("heading",{options:[{model:"paragraph",title:"Paragraph",class:"ck-heading_paragraph"},{model:"heading1",view:"h2",title:"Heading 1",class:"ck-heading_heading1"},{model:"heading2",view:"h3",title:"Heading 2",class:"ck-heading_heading2"},{model:"heading3",view:"h4",title:"Heading 3",class:"ck-heading_heading3"}]})}static get requires(){return[hk]}init(){const t=this.editor,e=t.config.get("heading.options"),n=[];for(const o of e)"paragraph"!==o.model&&(t.model.schema.register(o.model,{inheritAllFrom:"$block"}),t.conversion.elementToElement(o),n.push(o.model));this._addDefaultH1Conversion(t),t.commands.add("heading",new gk(t,n))}afterInit(){const t=this.editor,e=t.commands.get("enter"),n=t.config.get("heading.options");e&&this.listenTo(e,"afterExecute",((e,o)=>{const i=t.model.document.selection.getFirstPosition().parent;n.some((t=>i.is("element",t.model)))&&!i.is("element",pk)&&0===i.childCount&&o.writer.rename(i,pk)}))}_addDefaultH1Conversion(t){t.conversion.for("upcast").elementToElement({model:"heading1",view:"h1",converterPriority:m.get("low")+1})}}function bk(t){const e=t.t,n={Paragraph:e("Paragraph"),"Heading 1":e("Heading 1"),"Heading 2":e("Heading 2"),"Heading 3":e("Heading 3"),"Heading 4":e("Heading 4"),"Heading 5":e("Heading 5"),"Heading 6":e("Heading 6")};return t.config.get("heading.options").map((t=>{const e=n[t.title];return e&&e!=t.title&&(t.title=e),t}))}var kk=n(8733),wk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(kk.Z,wk);kk.Z.locals;class _k extends Pi{static get pluginName(){return"HeadingUI"}init(){const t=this.editor,e=t.t,n=bk(t),o=e("Choose heading"),i=e("Heading");t.ui.componentFactory.add("heading",(e=>{const r={},s=new vi,a=t.commands.get("heading"),l=t.commands.get("paragraph"),c=[a];for(const t of n){const e={type:"button",model:new Ap({label:t.title,class:t.class,withText:!0})};"paragraph"===t.model?(e.model.bind("isOn").to(l,"value"),e.model.set("commandName","paragraph"),c.push(l)):(e.model.bind("isOn").to(a,"value",(e=>e===t.model)),e.model.set({commandName:"heading",commandValue:t.model})),s.add(e),r[t.model]=t.title}const d=ym(e);return Tm(d,s),d.buttonView.set({isOn:!1,withText:!0,tooltip:i}),d.extendTemplate({attributes:{class:["ck-heading-dropdown"]}}),d.bind("isEnabled").toMany(c,"isEnabled",((...t)=>t.some((t=>t)))),d.buttonView.bind("label").to(a,"value",l,"value",((t,e)=>{const n=t||e&&"paragraph";return"boolean"==typeof n?o:r[n]?r[n]:o})),this.listenTo(d,"execute",(e=>{const{commandName:n,commandValue:o}=e.source;t.execute(n,o?{value:o}:void 0),t.editing.view.focus()})),d}))}}class Ak extends(T()){constructor(){super(...arguments),this._stack=[]}add(t,e){const n=this._stack,o=n[0];this._insertDescriptor(t);const i=n[0];o===i||Ck(o,i)||this.fire("change:top",{oldDescriptor:o,newDescriptor:i,writer:e})}remove(t,e){const n=this._stack,o=n[0];this._removeDescriptor(t);const i=n[0];o===i||Ck(o,i)||this.fire("change:top",{oldDescriptor:o,newDescriptor:i,writer:e})}_insertDescriptor(t){const e=this._stack,n=e.findIndex((e=>e.id===t.id));if(Ck(t,e[n]))return;n>-1&&e.splice(n,1);let o=0;for(;e[o]&&vk(e[o],t);)o++;e.splice(o,0,t)}_removeDescriptor(t){const e=this._stack,n=e.findIndex((e=>e.id===t));n>-1&&e.splice(n,1)}}function Ck(t,e){return t&&e&&t.priority==e.priority&&yk(t.classes)==yk(e.classes)}function vk(t,e){return t.priority>e.priority||!(t.priority<e.priority)&&yk(t.classes)>yk(e.classes)}function yk(t){return Array.isArray(t)?t.sort().join(","):t}const xk='<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="M4 0v1H1v3H0V.5A.5.5 0 0 1 .5 0H4zm8 0h3.5a.5.5 0 0 1 .5.5V4h-1V1h-3V0zM4 16H.5a.5.5 0 0 1-.5-.5V12h1v3h3v1zm8 0v-1h3v-3h1v3.5a.5.5 0 0 1-.5.5H12z"/><path fill-opacity=".256" d="M1 1h14v14H1z"/><g class="ck-icon__selected-indicator"><path d="M7 0h2v1H7V0zM0 7h1v2H0V7zm15 0h1v2h-1V7zm-8 8h2v1H7v-1z"/><path fill-opacity=".254" d="M1 1h14v14H1z"/></g></svg>',Ek="ck-widget",Tk="ck-widget_selected";function Dk(t){return!!t.is("element")&&!!t.getCustomProperty("widget")}function Sk(t,e,n={}){if(!t.is("containerElement"))throw new b("widget-to-widget-wrong-element-type",null,{element:t});return e.setAttribute("contenteditable","false",t),e.addClass(Ek,t),e.setCustomProperty("widget",!0,t),t.getFillerOffset=Ok,e.setCustomProperty("widgetLabel",[],t),n.label&&function(t,e){const n=t.getCustomProperty("widgetLabel");n.push(e)}(t,n.label),n.hasSelectionHandle&&function(t,e){const n=e.createUIElement("div",{class:"ck ck-widget__selection-handle"},(function(t){const e=this.toDomElement(t),n=new Bg;return n.set("content",xk),n.render(),e.appendChild(n.element),e}));e.insert(e.createPositionAt(t,0),n),e.addClass(["ck-widget_with-selection-handle"],t)}(t,e),Pk(t,e),t}function Bk(t,e,n){if(e.classes&&n.addClass(ki(e.classes),t),e.attributes)for(const o in e.attributes)n.setAttribute(o,e.attributes[o],t)}function Ik(t,e,n){if(e.classes&&n.removeClass(ki(e.classes),t),e.attributes)for(const o in e.attributes)n.removeAttribute(o,t)}function Pk(t,e,n=Bk,o=Ik){const i=new Ak;i.on("change:top",((e,i)=>{i.oldDescriptor&&o(t,i.oldDescriptor,i.writer),i.newDescriptor&&n(t,i.newDescriptor,i.writer)}));e.setCustomProperty("addHighlight",((t,e,n)=>i.add(e,n)),t),e.setCustomProperty("removeHighlight",((t,e,n)=>i.remove(e,n)),t)}function Rk(t,e,n={}){return e.addClass(["ck-editor__editable","ck-editor__nested-editable"],t),e.setAttribute("role","textbox",t),n.label&&e.setAttribute("aria-label",n.label,t),e.setAttribute("contenteditable",t.isReadOnly?"false":"true",t),t.on("change:isReadOnly",((n,o,i)=>{e.setAttribute("contenteditable",i?"false":"true",t)})),t.on("change:isFocused",((n,o,i)=>{i?e.addClass("ck-editor__nested-editable_focused",t):e.removeClass("ck-editor__nested-editable_focused",t)})),Pk(t,e),t}function zk(t,e){const n=t.getSelectedElement();if(n){const o=Mk(t);if(o)return e.createRange(e.createPositionAt(n,o))}return Kh(t,e)}function Vk(t,e){return(n,o)=>{const{mapper:i,viewPosition:r}=o,s=i.findMappedViewAncestor(r);if(!e(s))return;const a=i.toModelElement(s);o.modelPosition=t.createPositionAt(a,r.isAtStart?"before":"after")}}function Ok(){return null}const Fk="widget-type-around";function Nk(t,e,n){return!!t&&Dk(t)&&!n.isInline(e)}function Mk(t){return t.getAttribute(Fk)}var Lk=n(4921),Hk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Lk.Z,Hk);Lk.Z.locals;const jk=["before","after"],qk=(new DOMParser).parseFromString('<svg viewBox="0 0 10 8" xmlns="http://www.w3.org/2000/svg"><path d="M9.055.263v3.972h-6.77M1 4.216l2-2.038m-2 2 2 2.038"/></svg>',"image/svg+xml").firstChild,Wk="ck-widget__type-around_disabled";class Uk extends Pi{constructor(){super(...arguments),this._currentFakeCaretModelElement=null}static get pluginName(){return"WidgetTypeAround"}static get requires(){return[Kb,Wf]}init(){const t=this.editor,e=t.editing.view;this.on("change:isEnabled",((n,o,i)=>{e.change((t=>{for(const n of e.document.roots)i?t.removeClass(Wk,n):t.addClass(Wk,n)})),i||t.model.change((t=>{t.removeSelectionAttribute(Fk)}))})),this._enableTypeAroundUIInjection(),this._enableInsertingParagraphsOnButtonClick(),this._enableInsertingParagraphsOnEnterKeypress(),this._enableInsertingParagraphsOnTypingKeystroke(),this._enableTypeAroundFakeCaretActivationUsingKeyboardArrows(),this._enableDeleteIntegration(),this._enableInsertContentIntegration(),this._enableInsertObjectIntegration(),this._enableDeleteContentIntegration()}destroy(){super.destroy(),this._currentFakeCaretModelElement=null}_insertParagraph(t,e){const n=this.editor,o=n.editing.view,i=n.model.schema.getAttributesWithProperty(t,"copyOnReplace",!0);n.execute("insertParagraph",{position:n.model.createPositionAt(t,e),attributes:i}),o.focus(),o.scrollToTheSelection()}_listenToIfEnabled(t,e,n,o){this.listenTo(t,e,((...t)=>{this.isEnabled&&n(...t)}),o)}_insertParagraphAccordingToFakeCaretPosition(){const t=this.editor.model.document.selection,e=Mk(t);if(!e)return!1;const n=t.getSelectedElement();return this._insertParagraph(n,e),!0}_enableTypeAroundUIInjection(){const t=this.editor,e=t.model.schema,n=t.locale.t,o={before:n("Insert paragraph before block"),after:n("Insert paragraph after block")};t.editing.downcastDispatcher.on("insert",((t,i,r)=>{const s=r.mapper.toViewElement(i.item);if(s&&Nk(s,i.item,e)){!function(t,e,n){const o=t.createUIElement("div",{class:"ck ck-reset_all ck-widget__type-around"},(function(t){const n=this.toDomElement(t);return function(t,e){for(const n of jk){const o=new rg({tag:"div",attributes:{class:["ck","ck-widget__type-around__button",`ck-widget__type-around__button_${n}`],title:e[n],"aria-hidden":"true"},children:[t.ownerDocument.importNode(qk,!0)]});t.appendChild(o.render())}}(n,e),function(t){const e=new rg({tag:"div",attributes:{class:["ck","ck-widget__type-around__fake-caret"]}});t.appendChild(e.render())}(n),n}));t.insert(t.createPositionAt(n,"end"),o)}(r.writer,o,s);s.getCustomProperty("widgetLabel").push((()=>this.isEnabled?n("Press Enter to type after or press Shift + Enter to type before the widget"):""))}}),{priority:"low"})}_enableTypeAroundFakeCaretActivationUsingKeyboardArrows(){const t=this.editor,e=t.model,n=e.document.selection,o=e.schema,i=t.editing.view;function r(t){return`ck-widget_type-around_show-fake-caret_${t}`}this._listenToIfEnabled(i.document,"arrowKey",((t,e)=>{this._handleArrowKeyPress(t,e)}),{context:[Dk,"$text"],priority:"high"}),this._listenToIfEnabled(n,"change:range",((e,n)=>{n.directChange&&t.model.change((t=>{t.removeSelectionAttribute(Fk)}))})),this._listenToIfEnabled(e.document,"change:data",(()=>{const e=n.getSelectedElement();if(e){if(Nk(t.editing.mapper.toViewElement(e),e,o))return}t.model.change((t=>{t.removeSelectionAttribute(Fk)}))})),this._listenToIfEnabled(t.editing.downcastDispatcher,"selection",((t,e,n)=>{const i=n.writer;if(this._currentFakeCaretModelElement){const t=n.mapper.toViewElement(this._currentFakeCaretModelElement);t&&(i.removeClass(jk.map(r),t),this._currentFakeCaretModelElement=null)}const s=e.selection.getSelectedElement();if(!s)return;const a=n.mapper.toViewElement(s);if(!Nk(a,s,o))return;const l=Mk(e.selection);l&&(i.addClass(r(l),a),this._currentFakeCaretModelElement=s)})),this._listenToIfEnabled(t.ui.focusTracker,"change:isFocused",((e,n,o)=>{o||t.model.change((t=>{t.removeSelectionAttribute(Fk)}))}))}_handleArrowKeyPress(t,e){const n=this.editor,o=n.model,i=o.document.selection,r=o.schema,s=n.editing.view,a=function(t,e){const n=bi(t,e);return"down"===n||"right"===n}(e.keyCode,n.locale.contentLanguageDirection),l=s.document.selection.getSelectedElement();let c;Nk(l,n.editing.mapper.toModelElement(l),r)?c=this._handleArrowKeyPressOnSelectedWidget(a):i.isCollapsed?c=this._handleArrowKeyPressWhenSelectionNextToAWidget(a):e.shiftKey||(c=this._handleArrowKeyPressWhenNonCollapsedSelection(a)),c&&(e.preventDefault(),t.stop())}_handleArrowKeyPressOnSelectedWidget(t){const e=this.editor.model,n=Mk(e.document.selection);return e.change((e=>{if(!n)return e.setSelectionAttribute(Fk,t?"after":"before"),!0;if(!(n===(t?"after":"before")))return e.removeSelectionAttribute(Fk),!0;return!1}))}_handleArrowKeyPressWhenSelectionNextToAWidget(t){const e=this.editor,n=e.model,o=n.schema,i=e.plugins.get("Widget"),r=i._getObjectElementNextToSelection(t);return!!Nk(e.editing.mapper.toViewElement(r),r,o)&&(n.change((e=>{i._setSelectionOverElement(r),e.setSelectionAttribute(Fk,t?"before":"after")})),!0)}_handleArrowKeyPressWhenNonCollapsedSelection(t){const e=this.editor,n=e.model,o=n.schema,i=e.editing.mapper,r=n.document.selection,s=t?r.getLastPosition().nodeBefore:r.getFirstPosition().nodeAfter;return!!Nk(i.toViewElement(s),s,o)&&(n.change((e=>{e.setSelection(s,"on"),e.setSelectionAttribute(Fk,t?"after":"before")})),!0)}_enableInsertingParagraphsOnButtonClick(){const t=this.editor,e=t.editing.view;this._listenToIfEnabled(e.document,"mousedown",((n,o)=>{const i=o.domTarget.closest(".ck-widget__type-around__button");if(!i)return;const r=function(t){return t.classList.contains("ck-widget__type-around__button_before")?"before":"after"}(i),s=function(t,e){const n=t.closest(".ck-widget");return e.mapDomToView(n)}(i,e.domConverter),a=t.editing.mapper.toModelElement(s);this._insertParagraph(a,r),o.preventDefault(),n.stop()}))}_enableInsertingParagraphsOnEnterKeypress(){const t=this.editor,e=t.model.document.selection,n=t.editing.view;this._listenToIfEnabled(n.document,"enter",((n,o)=>{if("atTarget"!=n.eventPhase)return;const i=e.getSelectedElement(),r=t.editing.mapper.toViewElement(i),s=t.model.schema;let a;this._insertParagraphAccordingToFakeCaretPosition()?a=!0:Nk(r,i,s)&&(this._insertParagraph(i,o.isSoft?"before":"after"),a=!0),a&&(o.preventDefault(),n.stop())}),{context:Dk})}_enableInsertingParagraphsOnTypingKeystroke(){const t=this.editor.editing.view.document;this._listenToIfEnabled(t,"insertText",((e,n)=>{this._insertParagraphAccordingToFakeCaretPosition()&&(n.selection=t.selection)}),{priority:"high"}),i.isAndroid?this._listenToIfEnabled(t,"keydown",((t,e)=>{229==e.keyCode&&this._insertParagraphAccordingToFakeCaretPosition()})):this._listenToIfEnabled(t,"compositionstart",(()=>{this._insertParagraphAccordingToFakeCaretPosition()}),{priority:"high"})}_enableDeleteIntegration(){const t=this.editor,e=t.editing.view,n=t.model,o=n.schema;this._listenToIfEnabled(e.document,"delete",((e,i)=>{if("atTarget"!=e.eventPhase)return;const r=Mk(n.document.selection);if(!r)return;const s=i.direction,a=n.document.selection.getSelectedElement(),l="forward"==s;if("before"===r===l)t.execute("delete",{selection:n.createSelection(a,"on")});else{const e=o.getNearestSelectionRange(n.createPositionAt(a,r),s);if(e)if(e.isCollapsed){const i=n.createSelection(e.start);if(n.modifySelection(i,{direction:s}),i.focus.isEqual(e.start)){const t=function(t,e){let n=e;for(const o of e.getAncestors({parentFirst:!0})){if(o.childCount>1||t.isLimit(o))break;n=o}return n}(o,e.start.parent);n.deleteContent(n.createSelection(t,"on"),{doNotAutoparagraph:!0})}else n.change((n=>{n.setSelection(e),t.execute(l?"deleteForward":"delete")}))}else n.change((n=>{n.setSelection(e),t.execute(l?"deleteForward":"delete")}))}i.preventDefault(),e.stop()}),{context:Dk})}_enableInsertContentIntegration(){const t=this.editor,e=this.editor.model,n=e.document.selection;this._listenToIfEnabled(t.model,"insertContent",((t,[o,i])=>{if(i&&!i.is("documentSelection"))return;const r=Mk(n);return r?(t.stop(),e.change((t=>{const i=n.getSelectedElement(),s=e.createPositionAt(i,r),a=t.createSelection(s),l=e.insertContent(o,a);return t.setSelection(a),l}))):void 0}),{priority:"high"})}_enableInsertObjectIntegration(){const t=this.editor,e=this.editor.model.document.selection;this._listenToIfEnabled(t.model,"insertObject",((t,n)=>{const[,o,i={}]=n;if(o&&!o.is("documentSelection"))return;const r=Mk(e);r&&(i.findOptimalPosition=r,n[3]=i)}),{priority:"high"})}_enableDeleteContentIntegration(){const t=this.editor,e=this.editor.model.document.selection;this._listenToIfEnabled(t.model,"deleteContent",((t,[n])=>{if(n&&!n.is("documentSelection"))return;Mk(e)&&t.stop()}),{priority:"high"})}}function $k(t){const e=t.model;return(n,o)=>{const i=o.keyCode==ui.arrowup,r=o.keyCode==ui.arrowdown,s=o.shiftKey,a=e.document.selection;if(!i&&!r)return;const l=r;if(s&&function(t,e){return!t.isCollapsed&&t.isBackward==e}(a,l))return;const c=function(t,e,n){const o=t.model;if(n){const t=e.isCollapsed?e.focus:e.getLastPosition(),n=Gk(o,t,"forward");if(!n)return null;const i=o.createRange(t,n),r=Kk(o.schema,i,"backward");return r?o.createRange(t,r):null}{const t=e.isCollapsed?e.focus:e.getFirstPosition(),n=Gk(o,t,"backward");if(!n)return null;const i=o.createRange(n,t),r=Kk(o.schema,i,"forward");return r?o.createRange(r,t):null}}(t,a,l);if(c){if(c.isCollapsed){if(a.isCollapsed)return;if(s)return}(c.isCollapsed||function(t,e,n){const o=t.model,i=t.view.domConverter;if(n){const t=o.createSelection(e.start);o.modifySelection(t),t.focus.isAtEnd||e.start.isEqual(t.focus)||(e=o.createRange(t.focus,e.end))}const r=t.mapper.toViewRange(e),s=i.viewRangeToDom(r),a=Fo.getDomRangeRects(s);let l;for(const t of a)if(void 0!==l){if(Math.round(t.top)>=l)return!1;l=Math.max(l,Math.round(t.bottom))}else l=Math.round(t.bottom);return!0}(t,c,l))&&(e.change((t=>{const n=l?c.end:c.start;if(s){const o=e.createSelection(a.anchor);o.setFocus(n),t.setSelection(o)}else t.setSelection(n)})),n.stop(),o.preventDefault(),o.stopPropagation())}}}function Gk(t,e,n){const o=t.schema,i=t.createRangeIn(e.root),r="forward"==n?"elementStart":"elementEnd";for(const{previousPosition:t,item:s,type:a}of i.getWalker({startPosition:e,direction:n})){if(o.isLimit(s)&&!o.isInline(s))return t;if(a==r&&o.isBlock(s))return null}return null}function Kk(t,e,n){const o="backward"==n?e.end:e.start;if(t.checkChild(o,"$text"))return o;for(const{nextPosition:o}of e.getWalker({direction:n}))if(t.checkChild(o,"$text"))return o;return null}var Zk=n(3488),Jk={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Zk.Z,Jk);Zk.Z.locals;class Yk extends Pi{constructor(){super(...arguments),this._previouslySelected=new Set}static get pluginName(){return"Widget"}static get requires(){return[Uk,Wf]}init(){const t=this.editor,e=t.editing.view,n=e.document;this.editor.editing.downcastDispatcher.on("selection",((e,n,o)=>{const i=o.writer,r=n.selection;if(r.isCollapsed)return;const s=r.getSelectedElement();if(!s)return;const a=t.editing.mapper.toViewElement(s);var l;Dk(a)&&(o.consumable.consume(r,"selection")&&i.setSelection(i.createRangeOn(a),{fake:!0,label:(l=a,l.getCustomProperty("widgetLabel").reduce(((t,e)=>"function"==typeof e?t?t+". "+e():e():t?t+". "+e:e),""))}))})),this.editor.editing.downcastDispatcher.on("selection",((t,e,n)=>{this._clearPreviouslySelectedWidgets(n.writer);const o=n.writer,i=o.document.selection;let r=null;for(const t of i.getRanges())for(const e of t){const t=e.item;Dk(t)&&!Qk(t,r)&&(o.addClass(Tk,t),this._previouslySelected.add(t),r=t)}}),{priority:"low"}),e.addObserver(iu),this.listenTo(n,"mousedown",((...t)=>this._onMousedown(...t))),this.listenTo(n,"arrowKey",((...t)=>{this._handleSelectionChangeOnArrowKeyPress(...t)}),{context:[Dk,"$text"]}),this.listenTo(n,"arrowKey",((...t)=>{this._preventDefaultOnArrowKeyPress(...t)}),{context:"$root"}),this.listenTo(n,"arrowKey",$k(this.editor.editing),{context:"$text"}),this.listenTo(n,"delete",((t,e)=>{this._handleDelete("forward"==e.direction)&&(e.preventDefault(),t.stop())}),{context:"$root"})}_onMousedown(t,e){const n=this.editor,o=n.editing.view,r=o.document;let s=e.target;if(function(t){let e=t;for(;e;){if(e.is("editableElement")&&!e.is("rootElement"))return!0;if(Dk(e))return!1;e=e.parent}return!1}(s)){if((i.isSafari||i.isGecko)&&e.domEvent.detail>=3){const t=n.editing.mapper,o=s.is("attributeElement")?s.findAncestor((t=>!t.is("attributeElement"))):s,i=t.toModelElement(o);e.preventDefault(),this.editor.model.change((t=>{t.setSelection(i,"in")}))}return}if(!Dk(s)&&(s=s.findAncestor(Dk),!s))return;i.isAndroid&&e.preventDefault(),r.isFocused||o.focus();const a=n.editing.mapper.toModelElement(s);this._setSelectionOverElement(a)}_handleSelectionChangeOnArrowKeyPress(t,e){const n=e.keyCode,o=this.editor.model,i=o.schema,r=o.document.selection,s=r.getSelectedElement(),a=bi(n,this.editor.locale.contentLanguageDirection),l="down"==a||"right"==a,c="up"==a||"down"==a;if(s&&i.isObject(s)){const n=l?r.getLastPosition():r.getFirstPosition(),s=i.getNearestSelectionRange(n,l?"forward":"backward");return void(s&&(o.change((t=>{t.setSelection(s)})),e.preventDefault(),t.stop()))}if(!r.isCollapsed&&!e.shiftKey){const n=r.getFirstPosition(),s=r.getLastPosition(),a=n.nodeAfter,c=s.nodeBefore;return void((a&&i.isObject(a)||c&&i.isObject(c))&&(o.change((t=>{t.setSelection(l?s:n)})),e.preventDefault(),t.stop()))}if(!r.isCollapsed)return;const d=this._getObjectElementNextToSelection(l);if(d&&i.isObject(d)){if(i.isInline(d)&&c)return;this._setSelectionOverElement(d),e.preventDefault(),t.stop()}}_preventDefaultOnArrowKeyPress(t,e){const n=this.editor.model,o=n.schema,i=n.document.selection.getSelectedElement();i&&o.isObject(i)&&(e.preventDefault(),t.stop())}_handleDelete(t){if(this.editor.isReadOnly)return;const e=this.editor.model.document.selection;if(!e.isCollapsed)return;const n=this._getObjectElementNextToSelection(t);return n?(this.editor.model.change((t=>{let o=e.anchor.parent;for(;o.isEmpty;){const e=o;o=e.parent,t.remove(e)}this._setSelectionOverElement(n)})),!0):void 0}_setSelectionOverElement(t){this.editor.model.change((e=>{e.setSelection(e.createRangeOn(t))}))}_getObjectElementNextToSelection(t){const e=this.editor.model,n=e.schema,o=e.document.selection,i=e.createSelection(o);if(e.modifySelection(i,{direction:t?"forward":"backward"}),i.isEqual(o))return null;const r=t?i.focus.nodeBefore:i.focus.nodeAfter;return r&&n.isObject(r)?r:null}_clearPreviouslySelectedWidgets(t){for(const e of this._previouslySelected)t.removeClass(Tk,e);this._previouslySelected.clear()}}function Qk(t,e){return!!e&&Array.from(t.getAncestors()).includes(e)}class Xk extends Pi{constructor(){super(...arguments),this._toolbarDefinitions=new Map}static get requires(){return[Dp]}static get pluginName(){return"WidgetToolbarRepository"}init(){const t=this.editor;if(t.plugins.has("BalloonToolbar")){const e=t.plugins.get("BalloonToolbar");this.listenTo(e,"show",(e=>{(function(t){const e=t.getSelectedElement();return!(!e||!Dk(e))})(t.editing.view.document.selection)&&e.stop()}),{priority:"high"})}this._balloon=this.editor.plugins.get("ContextualBalloon"),this.on("change:isEnabled",(()=>{this._updateToolbarsVisibility()})),this.listenTo(t.ui,"update",(()=>{this._updateToolbarsVisibility()})),this.listenTo(t.ui.focusTracker,"change:isFocused",(()=>{this._updateToolbarsVisibility()}),{priority:"low"})}destroy(){super.destroy();for(const t of this._toolbarDefinitions.values())t.view.destroy()}register(t,{ariaLabel:e,items:n,getRelatedElement:o,balloonClassName:i="ck-toolbar-container"}){if(!n.length)return void k("widget-toolbar-no-items",{toolbarId:t});const r=this.editor,s=r.t,a=new hm(r.locale);if(a.ariaLabel=e||s("Widget toolbar"),this._toolbarDefinitions.has(t))throw new b("widget-toolbar-duplicated",this,{toolbarId:t});const l={view:a,getRelatedElement:o,balloonClassName:i,itemsConfig:n,initialized:!1};r.ui.addToolbar(a,{isContextual:!0,beforeFocus:()=>{const t=o(r.editing.view.document.selection);t&&this._showToolbar(l,t)},afterBlur:()=>{this._hideToolbar(l)}}),this._toolbarDefinitions.set(t,l)}_updateToolbarsVisibility(){let t=0,e=null,n=null;for(const o of this._toolbarDefinitions.values()){const i=o.getRelatedElement(this.editor.editing.view.document.selection);if(this.isEnabled&&i)if(this.editor.ui.focusTracker.isFocused){const r=i.getAncestors().length;r>t&&(t=r,e=i,n=o)}else this._isToolbarVisible(o)&&this._hideToolbar(o);else this._isToolbarInBalloon(o)&&this._hideToolbar(o)}n&&this._showToolbar(n,e)}_hideToolbar(t){this._balloon.remove(t.view),this.stopListening(this._balloon,"change:visibleView")}_showToolbar(t,e){this._isToolbarVisible(t)?tw(this.editor,e):this._isToolbarInBalloon(t)||(t.initialized||(t.initialized=!0,t.view.fillFromConfig(t.itemsConfig,this.editor.ui.componentFactory)),this._balloon.add({view:t.view,position:ew(this.editor,e),balloonClassName:t.balloonClassName}),this.listenTo(this._balloon,"change:visibleView",(()=>{for(const t of this._toolbarDefinitions.values())if(this._isToolbarVisible(t)){const e=t.getRelatedElement(this.editor.editing.view.document.selection);tw(this.editor,e)}})))}_isToolbarVisible(t){return this._balloon.visibleView===t.view}_isToolbarInBalloon(t){return this._balloon.hasView(t.view)}}function tw(t,e){const n=t.plugins.get("ContextualBalloon"),o=ew(t,e);n.updatePosition(o)}function ew(t,e){const n=t.editing.view,o=Hm.defaultPositions;return{target:n.domConverter.mapViewToDom(e),positions:[o.northArrowSouth,o.northArrowSouthWest,o.northArrowSouthEast,o.southArrowNorth,o.southArrowNorthWest,o.southArrowNorthEast,o.viewportStickyNorth]}}class nw extends(j()){constructor(t){super(),this.set("activeHandlePosition",null),this.set("proposedWidthPercents",null),this.set("proposedWidth",null),this.set("proposedHeight",null),this.set("proposedHandleHostWidth",null),this.set("proposedHandleHostHeight",null),this._options=t,this._referenceCoordinates=null}get originalWidth(){return this._originalWidth}get originalHeight(){return this._originalHeight}get originalWidthPercents(){return this._originalWidthPercents}get aspectRatio(){return this._aspectRatio}begin(t,e,n){const o=new Fo(e);this.activeHandlePosition=function(t){const e=["top-left","top-right","bottom-right","bottom-left"];for(const n of e)if(t.classList.contains(ow(n)))return n}(t),this._referenceCoordinates=function(t,e){const n=new Fo(t),o=e.split("-"),i={x:"right"==o[1]?n.right:n.left,y:"bottom"==o[0]?n.bottom:n.top};return i.x+=t.ownerDocument.defaultView.scrollX,i.y+=t.ownerDocument.defaultView.scrollY,i}(e,function(t){const e=t.split("-"),n={top:"bottom",bottom:"top",left:"right",right:"left"};return`${n[e[0]]}-${n[e[1]]}`}(this.activeHandlePosition)),this._originalWidth=o.width,this._originalHeight=o.height,this._aspectRatio=o.width/o.height;const i=n.style.width;i&&i.match(/^\d+(\.\d*)?%$/)?this._originalWidthPercents=parseFloat(i):this._originalWidthPercents=function(t,e){const n=t.parentElement;let o=parseFloat(n.ownerDocument.defaultView.getComputedStyle(n).width);const i=5;let r=0,s=n;for(;isNaN(o);){if(s=s.parentElement,++r>i)return 0;o=parseFloat(n.ownerDocument.defaultView.getComputedStyle(s).width)}return e.width/o*100}(n,o)}update(t){this.proposedWidth=t.width,this.proposedHeight=t.height,this.proposedWidthPercents=t.widthPercents,this.proposedHandleHostWidth=t.handleHostWidth,this.proposedHandleHostHeight=t.handleHostHeight}}function ow(t){return`ck-widget__resizer__handle-${t}`}class iw extends ig{constructor(){super();const t=this.bindTemplate;this.setTemplate({tag:"div",attributes:{class:["ck","ck-size-view",t.to("_viewPosition",(t=>t?`ck-orientation-${t}`:""))],style:{display:t.if("_isVisible","none",(t=>!t))}},children:[{text:t.to("_label")}]})}_bindToState(t,e){this.bind("_isVisible").to(e,"proposedWidth",e,"proposedHeight",((t,e)=>null!==t&&null!==e)),this.bind("_label").to(e,"proposedHandleHostWidth",e,"proposedHandleHostHeight",e,"proposedWidthPercents",((e,n,o)=>"px"===t.unit?`${e}×${n}`:`${o}%`)),this.bind("_viewPosition").to(e,"activeHandlePosition",e,"proposedHandleHostWidth",e,"proposedHandleHostHeight",((t,e,n)=>e<50||n<50?"above-center":t))}_dismiss(){this.unbind(),this._isVisible=!1}}var rw=Object.defineProperty,sw=Object.defineProperties,aw=Object.getOwnPropertyDescriptors,lw=Object.getOwnPropertySymbols,cw=Object.prototype.hasOwnProperty,dw=Object.prototype.propertyIsEnumerable,hw=(t,e,n)=>e in t?rw(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;class uw extends(j()){constructor(t){super(),this._viewResizerWrapper=null,this._options=t,this.set("isEnabled",!0),this.set("isSelected",!1),this.bind("isVisible").to(this,"isEnabled",this,"isSelected",((t,e)=>t&&e)),this.decorate("begin"),this.decorate("cancel"),this.decorate("commit"),this.decorate("updateSize"),this.on("commit",(t=>{this.state.proposedWidth||this.state.proposedWidthPercents||(this._cleanup(),t.stop())}),{priority:"high"})}get state(){return this._state}show(){this._options.editor.editing.view.change((t=>{t.removeClass("ck-hidden",this._viewResizerWrapper)}))}hide(){this._options.editor.editing.view.change((t=>{t.addClass("ck-hidden",this._viewResizerWrapper)}))}attach(){const t=this,e=this._options.viewElement;this._options.editor.editing.view.change((n=>{const o=n.createUIElement("div",{class:"ck ck-reset_all ck-widget__resizer"},(function(e){const n=this.toDomElement(e);return t._appendHandles(n),t._appendSizeUI(n),n}));n.insert(n.createPositionAt(e,"end"),o),n.addClass("ck-widget_with-resizer",e),this._viewResizerWrapper=o,this.isVisible||this.hide()})),this.on("change:isVisible",(()=>{this.isVisible?(this.show(),this.redraw()):this.hide()}))}begin(t){this._state=new nw(this._options),this._sizeView._bindToState(this._options,this.state),this._initialViewWidth=this._options.viewElement.getStyle("width"),this.state.begin(t,this._getHandleHost(),this._getResizeHost())}updateSize(t){const e=this._proposeNewSize(t);this._options.editor.editing.view.change((t=>{const n=this._options.unit||"%",o=("%"===n?e.widthPercents:e.width)+n;t.setStyle("width",o,this._options.viewElement)}));const n=this._getHandleHost(),o=new Fo(n),i=Math.round(o.width),r=Math.round(o.height),s=new Fo(n);var a;e.width=Math.round(s.width),e.height=Math.round(s.height),this.redraw(o),this.state.update((a=((t,e)=>{for(var n in e||(e={}))cw.call(e,n)&&hw(t,n,e[n]);if(lw)for(var n of lw(e))dw.call(e,n)&&hw(t,n,e[n]);return t})({},e),sw(a,aw({handleHostWidth:i,handleHostHeight:r}))))}commit(){const t=this._options.unit||"%",e=("%"===t?this.state.proposedWidthPercents:this.state.proposedWidth)+t;this._options.editor.editing.view.change((()=>{this._cleanup(),this._options.onCommit(e)}))}cancel(){this._cleanup()}destroy(){this.cancel()}redraw(t){const e=this._domResizerWrapper;if(!((n=e)&&n.ownerDocument&&n.ownerDocument.contains(n)))return;var n;const o=e.parentElement,i=this._getHandleHost(),r=this._viewResizerWrapper,s=[r.getStyle("width"),r.getStyle("height"),r.getStyle("left"),r.getStyle("top")];let a;if(o.isSameNode(i)){const e=t||new Fo(i);a=[e.width+"px",e.height+"px",void 0,void 0]}else a=[i.offsetWidth+"px",i.offsetHeight+"px",i.offsetLeft+"px",i.offsetTop+"px"];"same"!==J(s,a)&&this._options.editor.editing.view.change((t=>{t.setStyle({width:a[0],height:a[1],left:a[2],top:a[3]},r)}))}containsHandle(t){return this._domResizerWrapper.contains(t)}static isResizeHandle(t){return t.classList.contains("ck-widget__resizer__handle")}_cleanup(){this._sizeView._dismiss();this._options.editor.editing.view.change((t=>{t.setStyle("width",this._initialViewWidth,this._options.viewElement)}))}_proposeNewSize(t){const e=this.state,n={x:(o=t).pageX,y:o.pageY};var o;const i=!this._options.isCentered||this._options.isCentered(this),r={x:e._referenceCoordinates.x-(n.x+e.originalWidth),y:n.y-e.originalHeight-e._referenceCoordinates.y};i&&e.activeHandlePosition.endsWith("-right")&&(r.x=n.x-(e._referenceCoordinates.x+e.originalWidth)),i&&(r.x*=2);let s=Math.abs(e.originalWidth+r.x),a=Math.abs(e.originalHeight+r.y);return"width"==(s/e.aspectRatio>a?"width":"height")?a=s/e.aspectRatio:s=a*e.aspectRatio,{width:Math.round(s),height:Math.round(a),widthPercents:Math.min(Math.round(e.originalWidthPercents/e.originalWidth*s*100)/100,100)}}_getResizeHost(){const t=this._domResizerWrapper.parentElement;return this._options.getResizeHost(t)}_getHandleHost(){const t=this._domResizerWrapper.parentElement;return this._options.getHandleHost(t)}get _domResizerWrapper(){return this._options.editor.editing.view.domConverter.mapViewToDom(this._viewResizerWrapper)}_appendHandles(t){const e=["top-left","top-right","bottom-right","bottom-left"];for(const o of e)t.appendChild(new rg({tag:"div",attributes:{class:"ck-widget__resizer__handle "+(n=o,`ck-widget__resizer__handle-${n}`)}}).render());var n}_appendSizeUI(t){this._sizeView=new iw,this._sizeView.render(),t.appendChild(this._sizeView.element)}}var gw=n(8506),mw={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(gw.Z,mw);gw.Z.locals;class pw extends Pi{constructor(){super(...arguments),this._resizers=new Map}static get pluginName(){return"WidgetResize"}init(){const t=this.editor.editing,e=Io.window.document;this.set("selectedResizer",null),this.set("_activeResizer",null),t.view.addObserver(iu),this._observer=new(To()),this.listenTo(t.view.document,"mousedown",this._mouseDownListener.bind(this),{priority:"high"}),this._observer.listenTo(e,"mousemove",this._mouseMoveListener.bind(this)),this._observer.listenTo(e,"mouseup",this._mouseUpListener.bind(this)),this._redrawSelectedResizerThrottled=Up((()=>this.redrawSelectedResizer()),200),this.editor.ui.on("update",this._redrawSelectedResizerThrottled),this.editor.model.document.on("change",(()=>{for(const[t,e]of this._resizers)t.isAttached()||(this._resizers.delete(t),e.destroy())}),{priority:"lowest"}),this._observer.listenTo(Io.window,"resize",this._redrawSelectedResizerThrottled);const n=this.editor.editing.view.document.selection;n.on("change",(()=>{const t=n.getSelectedElement(),e=this.getResizerByViewElement(t)||null;e?this.select(e):this.deselect()}))}redrawSelectedResizer(){this.selectedResizer&&this.selectedResizer.isVisible&&this.selectedResizer.redraw()}destroy(){super.destroy(),this._observer.stopListening();for(const t of this._resizers.values())t.destroy();this._redrawSelectedResizerThrottled.cancel()}select(t){this.deselect(),this.selectedResizer=t,this.selectedResizer.isSelected=!0}deselect(){this.selectedResizer&&(this.selectedResizer.isSelected=!1),this.selectedResizer=null}attachTo(t){const e=new uw(t),n=this.editor.plugins;if(e.attach(),n.has("WidgetToolbarRepository")){const t=n.get("WidgetToolbarRepository");e.on("begin",(()=>{t.forceDisabled("resize")}),{priority:"lowest"}),e.on("cancel",(()=>{t.clearForceDisabled("resize")}),{priority:"highest"}),e.on("commit",(()=>{t.clearForceDisabled("resize")}),{priority:"highest"})}this._resizers.set(t.viewElement,e);const o=this.editor.editing.view.document.selection.getSelectedElement();return this.getResizerByViewElement(o)==e&&this.select(e),e}getResizerByViewElement(t){return this._resizers.get(t)}_getResizerByHandle(t){for(const e of this._resizers.values())if(e.containsHandle(t))return e}_mouseDownListener(t,e){const n=e.domTarget;uw.isResizeHandle(n)&&(this._activeResizer=this._getResizerByHandle(n)||null,this._activeResizer&&(this._activeResizer.begin(n),t.stop(),e.preventDefault()))}_mouseMoveListener(t,e){this._activeResizer&&this._activeResizer.updateSize(e)}_mouseUpListener(){this._activeResizer&&(this._activeResizer.commit(),this._activeResizer=null)}}class fw extends zi{refresh(){const t=this.editor.plugins.get("ImageUtils").getClosestSelectedImageElement(this.editor.model.document.selection);this.isEnabled=!!t,this.isEnabled&&t.hasAttribute("alt")?this.value=t.getAttribute("alt"):this.value=!1}execute(t){const e=this.editor,n=e.plugins.get("ImageUtils"),o=e.model,i=n.getClosestSelectedImageElement(o.document.selection);o.change((e=>{e.setAttribute("alt",t.newValue,i)}))}}function bw(t){return t.createContainerElement("figure",{class:"image"},[t.createEmptyElement("img"),t.createSlot("children")])}function kw(t,e){const n=t.plugins.get("ImageUtils"),o=t.plugins.has("ImageInlineEditing")&&t.plugins.has("ImageBlockEditing");return t=>{if(!n.isInlineImageView(t))return null;if(!o)return i(t);return("block"==t.getStyle("display")||t.findAncestor(n.isBlockImageView)?"imageBlock":"imageInline")!==e?null:i(t)};function i(t){const e={name:!0};return t.hasAttribute("src")&&(e.attributes=["src"]),e}}function ww(t,e){const n=yi(e.getSelectedBlocks());return!n||t.isObject(n)||n.isEmpty&&"listItem"!=n.name?"imageBlock":"imageInline"}var _w=Object.defineProperty,Aw=Object.getOwnPropertySymbols,Cw=Object.prototype.hasOwnProperty,vw=Object.prototype.propertyIsEnumerable,yw=(t,e,n)=>e in t?_w(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n,xw=(t,e)=>{for(var n in e||(e={}))Cw.call(e,n)&&yw(t,n,e[n]);if(Aw)for(var n of Aw(e))vw.call(e,n)&&yw(t,n,e[n]);return t};class Ew extends Pi{static get pluginName(){return"ImageUtils"}isImage(t){return this.isInlineImage(t)||this.isBlockImage(t)}isInlineImageView(t){return!!t&&t.is("element","img")}isBlockImageView(t){return!!t&&t.is("element","figure")&&t.hasClass("image")}insertImage(t={},e=null,n=null){const o=this.editor,i=o.model,r=i.document.selection;n=Tw(o,e||r,n),t=xw(xw({},Object.fromEntries(r.getAttributes())),t);for(const e in t)i.schema.checkAttribute(n,e)||delete t[e];return i.change((o=>{const r=o.createElement(n,t);return i.insertObject(r,e,null,{setSelection:"on",findOptimalPosition:e||"imageInline"==n?void 0:"auto"}),r.parent?r:null}))}getClosestSelectedImageWidget(t){const e=t.getFirstPosition();if(!e)return null;const n=t.getSelectedElement();if(n&&this.isImageWidget(n))return n;let o=e.parent;for(;o;){if(o.is("element")&&this.isImageWidget(o))return o;o=o.parent}return null}getClosestSelectedImageElement(t){const e=t.getSelectedElement();return this.isImage(e)?e:t.getFirstPosition().findAncestor("imageBlock")}isImageAllowed(){const t=this.editor.model.document.selection;return function(t,e){const n=Tw(t,e,null);if("imageBlock"==n){const n=function(t,e){const n=zk(t,e),o=n.start.parent;if(o.isEmpty&&!o.is("element","$root"))return o.parent;return o}(e,t.model);if(t.model.schema.checkChild(n,"imageBlock"))return!0}else if(t.model.schema.checkChild(e.focus,"imageInline"))return!0;return!1}(this.editor,t)&&function(t){return[...t.focus.getAncestors()].every((t=>!t.is("element","imageBlock")))}(t)}toImageWidget(t,e,n){e.setCustomProperty("image",!0,t);return Sk(t,e,{label:()=>{const e=this.findViewImgElement(t).getAttribute("alt");return e?`${e} ${n}`:n}})}isImageWidget(t){return!!t.getCustomProperty("image")&&Dk(t)}isBlockImage(t){return!!t&&t.is("element","imageBlock")}isInlineImage(t){return!!t&&t.is("element","imageInline")}findViewImgElement(t){if(this.isInlineImageView(t))return t;const e=this.editor.editing.view;for(const{item:n}of e.createRangeIn(t))if(this.isInlineImageView(n))return n}}function Tw(t,e,n){const o=t.model.schema,i=t.config.get("image.insert.type");return t.plugins.has("ImageBlockEditing")?t.plugins.has("ImageInlineEditing")?n||("inline"===i?"imageInline":"block"===i?"imageBlock":e.is("selection")?ww(o,e):o.checkChild(e,"imageInline")?"imageInline":"imageBlock"):"imageBlock":"imageInline"}class Dw extends Pi{static get requires(){return[Ew]}static get pluginName(){return"ImageTextAlternativeEditing"}init(){this.editor.commands.add("imageTextAlternative",new fw(this.editor))}}var Sw=n(1905),Bw={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Sw.Z,Bw);Sw.Z.locals;class Iw extends ig{constructor(t){super(t);const e=this.locale.t;this.focusTracker=new xi,this.keystrokes=new Ei,this.labeledInput=this._createLabeledInputView(),this.saveButtonView=this._createButton(e("Save"),Ju.check,"ck-button-save"),this.saveButtonView.type="submit",this.cancelButtonView=this._createButton(e("Cancel"),Ju.cancel,"ck-button-cancel","cancel"),this._focusables=new eg,this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"form",attributes:{class:["ck","ck-text-alternative-form","ck-responsive-form"],tabindex:"-1"},children:[this.labeledInput,this.saveButtonView,this.cancelButtonView]})}render(){super.render(),this.keystrokes.listenTo(this.element),Xu({view:this}),[this.labeledInput,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)}))}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}_createButton(t,e,n,o){const i=new Rg(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}_createLabeledInputView(){const t=this.locale.t,e=new fp(this.locale,bp);return e.label=t("Text alternative"),e}}function Pw(t){const e=t.editing.view,n=Hm.defaultPositions,o=t.plugins.get("ImageUtils");return{target:e.domConverter.mapViewToDom(o.getClosestSelectedImageWidget(e.document.selection)),positions:[n.northArrowSouth,n.northArrowSouthWest,n.northArrowSouthEast,n.southArrowNorth,n.southArrowNorthWest,n.southArrowNorthEast,n.viewportStickyNorth]}}class Rw extends Pi{static get requires(){return[Dp]}static get pluginName(){return"ImageTextAlternativeUI"}init(){this._createButton()}destroy(){super.destroy(),this._form&&this._form.destroy()}_createButton(){const t=this.editor,e=t.t;t.ui.componentFactory.add("imageTextAlternative",(n=>{const o=t.commands.get("imageTextAlternative"),i=new Rg(n);return i.set({label:e("Change image text alternative"),icon:Ju.lowVision,tooltip:!0}),i.bind("isEnabled").to(o,"isEnabled"),i.bind("isOn").to(o,"value",(t=>!!t)),this.listenTo(i,"execute",(()=>{this._showForm()})),i}))}_createForm(){const t=this.editor,e=t.editing.view.document,n=t.plugins.get("ImageUtils");this._balloon=this.editor.plugins.get("ContextualBalloon"),this._form=new(Qu(Iw))(t.locale),this._form.render(),this.listenTo(this._form,"submit",(()=>{t.execute("imageTextAlternative",{newValue:this._form.labeledInput.fieldView.element.value}),this._hideForm(!0)})),this.listenTo(this._form,"cancel",(()=>{this._hideForm(!0)})),this._form.keystrokes.set("Esc",((t,e)=>{this._hideForm(!0),e()})),this.listenTo(t.ui,"update",(()=>{n.getClosestSelectedImageWidget(e.selection)?this._isVisible&&function(t){const e=t.plugins.get("ContextualBalloon");if(t.plugins.get("ImageUtils").getClosestSelectedImageWidget(t.editing.view.document.selection)){const n=Pw(t);e.updatePosition(n)}}(t):this._hideForm(!0)})),Yu({emitter:this._form,activator:()=>this._isVisible,contextElements:()=>[this._balloon.view.element],callback:()=>this._hideForm()})}_showForm(){if(this._isVisible)return;this._form||this._createForm();const t=this.editor,e=t.commands.get("imageTextAlternative"),n=this._form.labeledInput;this._form.disableCssTransitions(),this._isInBalloon||this._balloon.add({view:this._form,position:Pw(t)}),n.fieldView.value=n.fieldView.element.value=e.value||"",this._form.labeledInput.fieldView.select(),this._form.enableCssTransitions()}_hideForm(t=!1){this._isInBalloon&&(this._form.focusTracker.isFocused&&this._form.saveButtonView.focus(),this._balloon.remove(this._form),t&&this.editor.editing.view.focus())}get _isVisible(){return!!this._balloon&&this._balloon.visibleView===this._form}get _isInBalloon(){return!!this._balloon&&this._balloon.hasView(this._form)}}class zw extends Pi{static get requires(){return[Dw,Rw]}static get pluginName(){return"ImageTextAlternative"}}class Vw extends wa{constructor(t){super(t),this.domEventType=["paste","copy","cut","drop","dragover","dragstart","dragend","dragenter","dragleave"];const e=this.document;function n(t){return(n,o)=>{o.preventDefault();const i=o.dropRange?[o.dropRange]:null,r=new h(e,t);e.fire(r,{dataTransfer:o.dataTransfer,method:n.name,targetRanges:i,target:o.target}),r.stop.called&&o.stopPropagation()}}this.listenTo(e,"paste",n("clipboardInput"),{priority:"low"}),this.listenTo(e,"drop",n("clipboardInput"),{priority:"low"}),this.listenTo(e,"dragover",n("dragging"),{priority:"low"})}onDomEvent(t){const e="clipboardData"in t?t.clipboardData:t.dataTransfer,n="drop"==t.type||"paste"==t.type,o={dataTransfer:new al(e,{cacheFiles:n})};"drop"!=t.type&&"dragover"!=t.type||(o.dropRange=function(t,e){const n=e.target.ownerDocument,o=e.clientX,i=e.clientY;let r;n.caretRangeFromPoint&&n.caretRangeFromPoint(o,i)?r=n.caretRangeFromPoint(o,i):e.rangeParent&&(r=n.createRange(),r.setStart(e.rangeParent,e.rangeOffset),r.collapse(!0));if(r)return t.domConverter.domRangeToView(r);return null}(this.view,t)),this.fire(t.type,t,o)}}const Ow=["figcaption","li"];function Fw(t){let e="";if(t.is("$text")||t.is("$textProxy"))e=t.data;else if(t.is("element","img")&&t.hasAttribute("alt"))e=t.getAttribute("alt");else if(t.is("element","br"))e="\n";else{let n=null;for(const o of t.getChildren()){const t=Fw(o);n&&(n.is("containerElement")||o.is("containerElement"))&&(Ow.includes(n.name)||Ow.includes(o.name)?e+="\n":e+="\n\n"),e+=t,n=o}}return e}class Nw extends Pi{static get pluginName(){return"ClipboardPipeline"}init(){this.editor.editing.view.addObserver(Vw),this._setupPasteDrop(),this._setupCopyCut()}_setupPasteDrop(){const t=this.editor,e=t.model,n=t.editing.view,o=n.document;this.listenTo(o,"clipboardInput",(e=>{t.isReadOnly&&e.stop()}),{priority:"highest"}),this.listenTo(o,"clipboardInput",((t,e)=>{const o=e.dataTransfer;let i;if(e.content)i=e.content;else{let t="";o.getData("text/html")?t=function(t){return t.replace(/<span(?: class="Apple-converted-space"|)>(\s+)<\/span>/g,((t,e)=>1==e.length?" ":e)).replace(/<!--[\s\S]*?-->/g,"")}(o.getData("text/html")):o.getData("text/plain")&&(((r=(r=o.getData("text/plain")).replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/\r?\n\r?\n/g,"</p><p>").replace(/\r?\n/g,"<br>").replace(/\t/g,"&nbsp;&nbsp;&nbsp;&nbsp;").replace(/^\s/,"&nbsp;").replace(/\s$/,"&nbsp;").replace(/\s\s/g," &nbsp;")).includes("</p><p>")||r.includes("<br>"))&&(r=`<p>${r}</p>`),t=r),i=this.editor.data.htmlProcessor.toView(t)}var r;const s=new h(this,"inputTransformation");this.fire(s,{content:i,dataTransfer:o,targetRanges:e.targetRanges,method:e.method}),s.stop.called&&t.stop(),n.scrollToTheSelection()}),{priority:"low"}),this.listenTo(this,"inputTransformation",((t,n)=>{if(n.content.isEmpty)return;const o=this.editor.data.toModel(n.content,"$clipboardHolder");0!=o.childCount&&(t.stop(),e.change((()=>{this.fire("contentInsertion",{content:o,method:n.method,dataTransfer:n.dataTransfer,targetRanges:n.targetRanges})})))}),{priority:"low"}),this.listenTo(this,"contentInsertion",((t,n)=>{n.resultRange=e.insertContent(n.content)}),{priority:"low"})}_setupCopyCut(){const t=this.editor,e=t.model.document,n=t.editing.view.document,o=(o,i)=>{const r=i.dataTransfer;i.preventDefault();const s=t.data.toView(t.model.getSelectedContent(e.selection));n.fire("clipboardOutput",{dataTransfer:r,content:s,method:o.name})};this.listenTo(n,"copy",o,{priority:"low"}),this.listenTo(n,"cut",((e,n)=>{t.isReadOnly?n.preventDefault():o(e,n)}),{priority:"low"}),this.listenTo(n,"clipboardOutput",((n,o)=>{o.content.isEmpty||(o.dataTransfer.setData("text/html",this.editor.data.htmlProcessor.toData(o.content)),o.dataTransfer.setData("text/plain",Fw(o.content))),"cut"==o.method&&t.model.deleteContent(e.selection)}),{priority:"low"})}}var Mw=n(903),Lw={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Mw.Z,Lw);Mw.Z.locals;class Hw extends Pi{static get pluginName(){return"DragDrop"}static get requires(){return[Nw,Yk]}init(){const t=this.editor,e=t.editing.view;this._draggedRange=null,this._draggingUid="",this._draggableElement=null,this._updateDropMarkerThrottled=Up((t=>this._updateDropMarker(t)),40),this._removeDropMarkerDelayed=Ww((()=>this._removeDropMarker()),40),this._clearDraggableAttributesDelayed=Ww((()=>this._clearDraggableAttributes()),40),e.addObserver(Vw),e.addObserver(iu),this._setupDragging(),this._setupContentInsertionIntegration(),this._setupClipboardInputIntegration(),this._setupDropMarker(),this._setupDraggableAttributeHandling(),this.listenTo(t,"change:isReadOnly",((t,e,n)=>{n?this.forceDisabled("readOnlyMode"):this.clearForceDisabled("readOnlyMode")})),this.on("change:isEnabled",((t,e,n)=>{n||this._finalizeDragging(!1)})),i.isAndroid&&this.forceDisabled("noAndroidSupport")}destroy(){return this._draggedRange&&(this._draggedRange.detach(),this._draggedRange=null),this._updateDropMarkerThrottled.cancel(),this._removeDropMarkerDelayed.cancel(),this._clearDraggableAttributesDelayed.cancel(),super.destroy()}_setupDragging(){const t=this.editor,e=t.model,n=e.document,o=t.editing.view,r=o.document;this.listenTo(r,"dragstart",((o,i)=>{const s=n.selection;if(i.target&&i.target.is("editableElement"))return void i.preventDefault();const a=i.target?Uw(i.target):null;if(a){const n=t.editing.mapper.toModelElement(a);if(this._draggedRange=Jl.fromRange(e.createRangeOn(n)),t.plugins.has("WidgetToolbarRepository")){t.plugins.get("WidgetToolbarRepository").forceDisabled("dragDrop")}}else if(!r.selection.isCollapsed){const t=r.selection.getSelectedElement();t&&Dk(t)||(this._draggedRange=Jl.fromRange(s.getFirstRange()))}if(!this._draggedRange)return void i.preventDefault();this._draggingUid=g(),i.dataTransfer.effectAllowed=this.isEnabled?"copyMove":"copy",i.dataTransfer.setData("application/ckeditor5-dragging-uid",this._draggingUid);const l=e.createSelection(this._draggedRange.toRange()),c=t.data.toView(e.getSelectedContent(l));r.fire("clipboardOutput",{dataTransfer:i.dataTransfer,content:c,method:"dragstart"}),this.isEnabled||(this._draggedRange.detach(),this._draggedRange=null,this._draggingUid="")}),{priority:"low"}),this.listenTo(r,"dragend",((t,e)=>{this._finalizeDragging(!e.dataTransfer.isCanceled&&"move"==e.dataTransfer.dropEffect)}),{priority:"low"}),this.listenTo(r,"dragenter",(()=>{this.isEnabled&&o.focus()})),this.listenTo(r,"dragleave",(()=>{this._removeDropMarkerDelayed()})),this.listenTo(r,"dragging",((e,n)=>{if(!this.isEnabled)return void(n.dataTransfer.dropEffect="none");this._removeDropMarkerDelayed.cancel();const o=jw(t,n.targetRanges,n.target);this._draggedRange||(n.dataTransfer.dropEffect="copy"),i.isGecko||("copy"==n.dataTransfer.effectAllowed?n.dataTransfer.dropEffect="copy":["all","copyMove"].includes(n.dataTransfer.effectAllowed)&&(n.dataTransfer.dropEffect="move")),o&&this._updateDropMarkerThrottled(o)}),{priority:"low"})}_setupClipboardInputIntegration(){const t=this.editor,e=t.editing.view.document;this.listenTo(e,"clipboardInput",((e,n)=>{if("drop"!=n.method)return;const o=jw(t,n.targetRanges,n.target);if(this._removeDropMarker(),!o)return this._finalizeDragging(!1),void e.stop();this._draggedRange&&this._draggingUid!=n.dataTransfer.getData("application/ckeditor5-dragging-uid")&&(this._draggedRange.detach(),this._draggedRange=null,this._draggingUid="");if("move"==qw(n.dataTransfer)&&this._draggedRange&&this._draggedRange.containsRange(o,!0))return this._finalizeDragging(!1),void e.stop();n.targetRanges=[t.editing.mapper.toViewRange(o)]}),{priority:"high"})}_setupContentInsertionIntegration(){const t=this.editor.plugins.get(Nw);t.on("contentInsertion",((t,e)=>{if(!this.isEnabled||"drop"!==e.method)return;const n=e.targetRanges.map((t=>this.editor.editing.mapper.toModelRange(t)));this.editor.model.change((t=>t.setSelection(n)))}),{priority:"high"}),t.on("contentInsertion",((t,e)=>{if(!this.isEnabled||"drop"!==e.method)return;const n="move"==qw(e.dataTransfer),o=!e.resultRange||!e.resultRange.isCollapsed;this._finalizeDragging(o&&n)}),{priority:"lowest"})}_setupDraggableAttributeHandling(){const t=this.editor,e=t.editing.view,n=e.document;this.listenTo(n,"mousedown",((o,r)=>{if(i.isAndroid||!r)return;this._clearDraggableAttributesDelayed.cancel();let s=Uw(r.target);if(i.isBlink&&!t.isReadOnly&&!s&&!n.selection.isCollapsed){const t=n.selection.getSelectedElement();t&&Dk(t)||(s=n.selection.editableElement)}s&&(e.change((t=>{t.setAttribute("draggable","true",s)})),this._draggableElement=t.editing.mapper.toModelElement(s))})),this.listenTo(n,"mouseup",(()=>{i.isAndroid||this._clearDraggableAttributesDelayed()}))}_clearDraggableAttributes(){const t=this.editor.editing;t.view.change((e=>{this._draggableElement&&"$graveyard"!=this._draggableElement.root.rootName&&e.removeAttribute("draggable",t.mapper.toViewElement(this._draggableElement)),this._draggableElement=null}))}_setupDropMarker(){const t=this.editor;t.conversion.for("editingDowncast").markerToHighlight({model:"drop-target",view:{classes:["ck-clipboard-drop-target-range"]}}),t.conversion.for("editingDowncast").markerToElement({model:"drop-target",view:(e,{writer:n})=>{if(t.model.schema.checkChild(e.markerRange.start,"$text"))return n.createUIElement("span",{class:"ck ck-clipboard-drop-target-position"},(function(t){const e=this.toDomElement(t);return e.append("⁠",t.createElement("span"),"⁠"),e}))}})}_updateDropMarker(t){const e=this.editor,n=e.model.markers;e.model.change((e=>{n.has("drop-target")?n.get("drop-target").getRange().isEqual(t)||e.updateMarker("drop-target",{range:t}):e.addMarker("drop-target",{range:t,usingOperation:!1,affectsData:!1})}))}_removeDropMarker(){const t=this.editor.model;this._removeDropMarkerDelayed.cancel(),this._updateDropMarkerThrottled.cancel(),t.markers.has("drop-target")&&t.change((t=>{t.removeMarker("drop-target")}))}_finalizeDragging(t){const e=this.editor,n=e.model;if(this._removeDropMarker(),this._clearDraggableAttributes(),e.plugins.has("WidgetToolbarRepository")){e.plugins.get("WidgetToolbarRepository").clearForceDisabled("dragDrop")}this._draggingUid="",this._draggedRange&&(t&&this.isEnabled&&n.deleteContent(n.createSelection(this._draggedRange),{doNotAutoparagraph:!0}),this._draggedRange.detach(),this._draggedRange=null)}}function jw(t,e,n){const o=t.model,r=t.editing.mapper;let s=null;const a=e?e[0].start:null;if(n.is("uiElement")&&(n=n.parent),s=function(t,e){const n=t.model,o=t.editing.mapper;if(Dk(e))return n.createRangeOn(o.toModelElement(e));if(!e.is("editableElement")){const t=e.findAncestor((t=>Dk(t)||t.is("editableElement")));if(Dk(t))return n.createRangeOn(o.toModelElement(t))}return null}(t,n),s)return s;const l=function(t,e){const n=t.editing.mapper,o=t.editing.view,i=n.toModelElement(e);if(i)return i;const r=o.createPositionBefore(e),s=n.findMappedViewAncestor(r);return n.toModelElement(s)}(t,n),c=a?r.toModelPosition(a):null;return c?(s=function(t,e,n){const o=t.model;if(!o.schema.checkChild(n,"$block"))return null;const i=o.createPositionAt(n,0),r=e.path.slice(0,i.path.length),s=o.createPositionFromPath(e.root,r),a=s.nodeAfter;if(a&&o.schema.isObject(a))return o.createRangeOn(a);return null}(t,c,l),s||(s=o.schema.getNearestSelectionRange(c,i.isGecko?"forward":"backward"),s||function(t,e){const n=t.model;let o=e;for(;o;){if(n.schema.isObject(o))return n.createRangeOn(o);o=o.parent}return null}(t,c.parent))):function(t,e){const n=t.model,o=n.schema,i=n.createPositionAt(e,0);return o.getNearestSelectionRange(i,"forward")}(t,l)}function qw(t){return i.isGecko?t.dropEffect:["all","copyMove"].includes(t.effectAllowed)?"move":"copy"}function Ww(t,e){let n;function o(...i){o.cancel(),n=setTimeout((()=>t(...i)),e)}return o.cancel=()=>{clearTimeout(n)},o}function Uw(t){if(t.is("editableElement"))return null;if(t.hasClass("ck-widget__selection-handle"))return t.findAncestor(Dk);if(Dk(t))return t;const e=t.findAncestor((t=>Dk(t)||t.is("editableElement")));return Dk(e)?e:null}class $w extends Pi{static get pluginName(){return"PastePlainText"}static get requires(){return[Nw]}init(){const t=this.editor,e=t.model,n=t.editing.view,o=n.document,i=e.document.selection;let r=!1;n.addObserver(Vw),this.listenTo(o,"keydown",((t,e)=>{r=e.shiftKey})),t.plugins.get(Nw).on("contentInsertion",((t,n)=>{(r||function(t,e){if(t.childCount>1)return!1;const n=t.getChild(0);if(e.isObject(n))return!1;return 0==Array.from(n.getAttributeKeys()).length}(n.content,e.schema))&&e.change((t=>{const o=Array.from(i.getAttributes()).filter((([t])=>e.schema.getAttributeProperties(t).isFormatting));i.isCollapsed||e.deleteContent(i,{doNotAutoparagraph:!0}),o.push(...i.getAttributes());const r=t.createRangeIn(n.content);for(const e of r.getItems())e.is("$textProxy")&&t.setAttributes(o,e)}))}))}}class Gw extends Pi{static get pluginName(){return"Clipboard"}static get requires(){return[Nw,Hw,$w]}}function Kw(t,e){const n=(e,n,o)=>{if(!o.consumable.consume(n.item,e.name))return;const i=o.writer,r=o.mapper.toViewElement(n.item),s=t.findViewImgElement(r);if(null===n.attributeNewValue){const t=n.attributeOldValue;t&&t.data&&(i.removeAttribute("srcset",s),i.removeAttribute("sizes",s),t.width&&i.removeAttribute("width",s))}else{const t=n.attributeNewValue;t&&t.data&&(i.setAttribute("srcset",t.data,s),i.setAttribute("sizes","100vw",s),t.width&&i.setAttribute("width",t.width,s))}};return t=>{t.on(`attribute:srcset:${e}`,n)}}function Zw(t,e,n){const o=(e,n,o)=>{if(!o.consumable.consume(n.item,e.name))return;const i=o.writer,r=o.mapper.toViewElement(n.item),s=t.findViewImgElement(r);i.setAttribute(n.attributeKey,n.attributeNewValue||"",s)};return t=>{t.on(`attribute:${n}:${e}`,o)}}class Jw extends fa{observe(t){this.listenTo(t,"load",((t,e)=>{const n=e.target;this.checkShouldIgnoreEventFromTarget(n)||"IMG"==n.tagName&&this._fireEvents(e)}),{useCapture:!0})}stopObserving(t){this.stopListening(t)}_fireEvents(t){this.isEnabled&&(this.document.fire("layoutChanged"),this.document.fire("imageLoaded",t))}}var Yw=Object.defineProperty,Qw=Object.getOwnPropertySymbols,Xw=Object.prototype.hasOwnProperty,t_=Object.prototype.propertyIsEnumerable,e_=(t,e,n)=>e in t?Yw(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n,n_=(t,e)=>{for(var n in e||(e={}))Xw.call(e,n)&&e_(t,n,e[n]);if(Qw)for(var n of Qw(e))t_.call(e,n)&&e_(t,n,e[n]);return t};class o_ extends zi{constructor(t){super(t);const e=t.config.get("image.insert.type");t.plugins.has("ImageBlockEditing")||"block"===e&&k("image-block-plugin-required"),t.plugins.has("ImageInlineEditing")||"inline"===e&&k("image-inline-plugin-required")}refresh(){const t=this.editor.plugins.get("ImageUtils");this.isEnabled=t.isImageAllowed()}execute(t){const e=ki(t.source),n=this.editor.model.document.selection,o=this.editor.plugins.get("ImageUtils"),i=Object.fromEntries(n.getAttributes());e.forEach(((t,e)=>{const r=n.getSelectedElement();if("string"==typeof t&&(t={src:t}),e&&r&&o.isImage(r)){const e=this.editor.model.createPositionAfter(r);o.insertImage(n_(n_({},t),i),e)}else o.insertImage(n_(n_({},t),i))}))}}class i_ extends zi{refresh(){const t=this.editor.plugins.get("ImageUtils"),e=this.editor.model.document.selection.getSelectedElement();this.isEnabled=t.isImage(e),this.value=this.isEnabled?e.getAttribute("src"):null}execute(t){const e=this.editor.model.document.selection.getSelectedElement();this.editor.model.change((n=>{n.setAttribute("src",t.source,e),n.removeAttribute("srcset",e),n.removeAttribute("sizes",e)}))}}class r_ extends Pi{static get requires(){return[Ew]}static get pluginName(){return"ImageEditing"}init(){const t=this.editor,e=t.conversion;t.editing.view.addObserver(Jw),e.for("upcast").attributeToAttribute({view:{name:"img",key:"alt"},model:"alt"}).attributeToAttribute({view:{name:"img",key:"srcset"},model:{key:"srcset",value:t=>{const e={data:t.getAttribute("srcset")};return t.hasAttribute("width")&&(e.width=t.getAttribute("width")),e}}});const n=new o_(t),o=new i_(t);t.commands.add("insertImage",n),t.commands.add("replaceImageSource",o),t.commands.add("imageInsert",n)}}class s_ extends zi{constructor(t,e){super(t),this._modelElementName=e}refresh(){const t=this.editor.plugins.get("ImageUtils"),e=t.getClosestSelectedImageElement(this.editor.model.document.selection);"imageBlock"===this._modelElementName?this.isEnabled=t.isInlineImage(e):this.isEnabled=t.isBlockImage(e)}execute(){const t=this.editor,e=this.editor.model,n=t.plugins.get("ImageUtils"),o=n.getClosestSelectedImageElement(e.document.selection),i=Object.fromEntries(o.getAttributes());return i.src||i.uploadId?e.change((t=>{const r=Array.from(e.markers).filter((t=>t.getRange().containsItem(o))),s=n.insertImage(i,e.createSelection(o,"on"),this._modelElementName);if(!s)return null;const a=t.createRangeOn(s);for(const e of r){const n=e.getRange(),o="$graveyard"!=n.root.rootName?n.getJoined(a,!0):a;t.updateMarker(e,{range:o})}return{oldElement:o,newElement:s}})):null}}class a_ extends Pi{static get requires(){return[r_,Ew,Nw]}static get pluginName(){return"ImageBlockEditing"}init(){const t=this.editor;t.model.schema.register("imageBlock",{inheritAllFrom:"$blockObject",allowAttributes:["alt","src","srcset"]}),this._setupConversion(),t.plugins.has("ImageInlineEditing")&&(t.commands.add("imageTypeBlock",new s_(this.editor,"imageBlock")),this._setupClipboardIntegration())}_setupConversion(){const t=this.editor,e=t.t,n=t.conversion,o=t.plugins.get("ImageUtils");n.for("dataDowncast").elementToStructure({model:"imageBlock",view:(t,{writer:e})=>bw(e)}),n.for("editingDowncast").elementToStructure({model:"imageBlock",view:(t,{writer:n})=>o.toImageWidget(bw(n),n,e("image widget"))}),n.for("downcast").add(Zw(o,"imageBlock","src")).add(Zw(o,"imageBlock","alt")).add(Kw(o,"imageBlock")),n.for("upcast").elementToElement({view:kw(t,"imageBlock"),model:(t,{writer:e})=>e.createElement("imageBlock",t.hasAttribute("src")?{src:t.getAttribute("src")}:void 0)}).add(function(t){const e=(e,n,o)=>{if(!o.consumable.test(n.viewItem,{name:!0,classes:"image"}))return;const i=t.findViewImgElement(n.viewItem);if(!i||!o.consumable.test(i,{name:!0}))return;o.consumable.consume(n.viewItem,{name:!0,classes:"image"});const r=yi(o.convertItem(i,n.modelCursor).modelRange.getItems());r?(o.convertChildren(n.viewItem,r),o.updateConversionResult(r,n)):o.consumable.revert(n.viewItem,{name:!0,classes:"image"})};return t=>{t.on("element:figure",e)}}(o))}_setupClipboardIntegration(){const t=this.editor,e=t.model,n=t.editing.view,o=t.plugins.get("ImageUtils"),i=t.plugins.get("ClipboardPipeline");this.listenTo(i,"inputTransformation",((i,r)=>{const s=Array.from(r.content.getChildren());let a;if(!s.every(o.isInlineImageView))return;a=r.targetRanges?t.editing.mapper.toModelRange(r.targetRanges[0]):e.document.selection.getFirstRange();const l=e.createSelection(a);if("imageBlock"===ww(e.schema,l)){const t=new ru(n.document),e=s.map((e=>t.createElement("figure",{class:"image"},e)));r.content=t.createDocumentFragment(e)}}))}}var l_=n(3508),c_={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(l_.Z,c_);l_.Z.locals;class d_ extends Pi{static get requires(){return[a_,Yk,zw]}static get pluginName(){return"ImageBlock"}}class h_ extends Pi{static get requires(){return[r_,Ew,Nw]}static get pluginName(){return"ImageInlineEditing"}init(){const t=this.editor,e=t.model.schema;e.register("imageInline",{inheritAllFrom:"$inlineObject",allowAttributes:["alt","src","srcset"]}),e.addChildCheck(((t,e)=>{if(t.endsWith("caption")&&"imageInline"===e.name)return!1})),this._setupConversion(),t.plugins.has("ImageBlockEditing")&&(t.commands.add("imageTypeInline",new s_(this.editor,"imageInline")),this._setupClipboardIntegration())}_setupConversion(){const t=this.editor,e=t.t,n=t.conversion,o=t.plugins.get("ImageUtils");n.for("dataDowncast").elementToElement({model:"imageInline",view:(t,{writer:e})=>e.createEmptyElement("img")}),n.for("editingDowncast").elementToStructure({model:"imageInline",view:(t,{writer:n})=>o.toImageWidget(function(t){return t.createContainerElement("span",{class:"image-inline"},t.createEmptyElement("img"))}(n),n,e("image widget"))}),n.for("downcast").add(Zw(o,"imageInline","src")).add(Zw(o,"imageInline","alt")).add(Kw(o,"imageInline")),n.for("upcast").elementToElement({view:kw(t,"imageInline"),model:(t,{writer:e})=>e.createElement("imageInline",t.hasAttribute("src")?{src:t.getAttribute("src")}:void 0)})}_setupClipboardIntegration(){const t=this.editor,e=t.model,n=t.editing.view,o=t.plugins.get("ImageUtils"),i=t.plugins.get("ClipboardPipeline");this.listenTo(i,"inputTransformation",((i,r)=>{const s=Array.from(r.content.getChildren());let a;if(!s.every(o.isBlockImageView))return;a=r.targetRanges?t.editing.mapper.toModelRange(r.targetRanges[0]):e.document.selection.getFirstRange();const l=e.createSelection(a);if("imageInline"===ww(e.schema,l)){const t=new ru(n.document),e=s.map((e=>1===e.childCount?(Array.from(e.getAttributes()).forEach((n=>t.setAttribute(...n,o.findViewImgElement(e)))),e.getChild(0)):e));r.content=t.createDocumentFragment(e)}}))}}class u_ extends Pi{static get requires(){return[h_,Yk,zw]}static get pluginName(){return"ImageInline"}}class g_ extends zi{refresh(){const t=this.editor,e=t.plugins.get("ImageCaptionUtils"),n=t.plugins.get("ImageUtils");if(!t.plugins.has(a_))return this.isEnabled=!1,void(this.value=!1);const o=t.model.document.selection,i=o.getSelectedElement();if(!i){const t=e.getCaptionFromModelSelection(o);return this.isEnabled=!!t,void(this.value=!!t)}this.isEnabled=n.isImage(i),this.isEnabled?this.value=!!e.getCaptionFromImageModelElement(i):this.value=!1}execute(t={}){const{focusCaptionOnShow:e}=t;this.editor.model.change((t=>{this.value?this._hideImageCaption(t):this._showImageCaption(t,e)}))}_showImageCaption(t,e){const n=this.editor.model.document.selection,o=this.editor.plugins.get("ImageCaptionEditing"),i=this.editor.plugins.get("ImageUtils");let r=n.getSelectedElement();const s=o._getSavedCaption(r);i.isInlineImage(r)&&(this.editor.execute("imageTypeBlock"),r=n.getSelectedElement());const a=s||t.createElement("caption");t.append(a,r),e&&t.setSelection(a,"in")}_hideImageCaption(t){const e=this.editor,n=e.model.document.selection,o=e.plugins.get("ImageCaptionEditing"),i=e.plugins.get("ImageCaptionUtils");let r,s=n.getSelectedElement();s?r=i.getCaptionFromImageModelElement(s):(r=i.getCaptionFromModelSelection(n),s=r.parent),o._saveCaption(s,r),t.setSelection(s,"on"),t.remove(r)}}class m_ extends Pi{static get pluginName(){return"ImageCaptionUtils"}static get requires(){return[Ew]}getCaptionFromImageModelElement(t){for(const e of t.getChildren())if(e&&e.is("element","caption"))return e;return null}getCaptionFromModelSelection(t){const e=this.editor.plugins.get("ImageUtils"),n=t.getFirstPosition().findAncestor("caption");return n&&e.isBlockImage(n.parent)?n:null}matchImageCaptionViewElement(t){const e=this.editor.plugins.get("ImageUtils");return"figcaption"==t.name&&e.isBlockImageView(t.parent)?{name:!0}:null}}class p_ extends Pi{constructor(t){super(t),this._savedCaptionsMap=new WeakMap}static get requires(){return[Ew,m_]}static get pluginName(){return"ImageCaptionEditing"}init(){const t=this.editor,e=t.model.schema;e.isRegistered("caption")?e.extend("caption",{allowIn:"imageBlock"}):e.register("caption",{allowIn:"imageBlock",allowContentOf:"$block",isLimit:!0}),t.commands.add("toggleImageCaption",new g_(this.editor)),this._setupConversion(),this._setupImageTypeCommandsIntegration(),this._registerCaptionReconversion()}_setupConversion(){const t=this.editor,e=t.editing.view,n=t.plugins.get("ImageUtils"),o=t.plugins.get("ImageCaptionUtils"),i=t.t;t.conversion.for("upcast").elementToElement({view:t=>o.matchImageCaptionViewElement(t),model:"caption"}),t.conversion.for("dataDowncast").elementToElement({model:"caption",view:(t,{writer:e})=>n.isBlockImage(t.parent)?e.createContainerElement("figcaption"):null}),t.conversion.for("editingDowncast").elementToElement({model:"caption",view:(t,{writer:o})=>{if(!n.isBlockImage(t.parent))return null;const r=o.createEditableElement("figcaption");o.setCustomProperty("imageCaption",!0,r),$i({view:e,element:r,text:i("Enter image caption"),keepOnFocus:!0});const s=t.parent.getAttribute("alt");return Rk(r,o,{label:s?i("Caption for image: %0",[s]):i("Caption for the image")})}})}_setupImageTypeCommandsIntegration(){const t=this.editor,e=t.plugins.get("ImageUtils"),n=t.plugins.get("ImageCaptionUtils"),o=t.commands.get("imageTypeInline"),i=t.commands.get("imageTypeBlock"),r=t=>{if(!t.return)return;const{oldElement:o,newElement:i}=t.return;if(!o)return;if(e.isBlockImage(o)){const t=n.getCaptionFromImageModelElement(o);if(t)return void this._saveCaption(i,t)}const r=this._getSavedCaption(o);r&&this._saveCaption(i,r)};o&&this.listenTo(o,"execute",r,{priority:"low"}),i&&this.listenTo(i,"execute",r,{priority:"low"})}_getSavedCaption(t){const e=this._savedCaptionsMap.get(t);return e?kl.fromJSON(e):null}_saveCaption(t,e){this._savedCaptionsMap.set(t,e.toJSON())}_registerCaptionReconversion(){const t=this.editor,e=t.model,n=t.plugins.get("ImageUtils"),o=t.plugins.get("ImageCaptionUtils");e.document.on("change:data",(()=>{const i=e.document.differ.getChanges();for(const e of i){if("alt"!==e.attributeKey)continue;const i=e.range.start.nodeAfter;if(n.isBlockImage(i)){const e=o.getCaptionFromImageModelElement(i);if(!e)return;t.editing.reconvertItem(e)}}}))}}class f_ extends Pi{static get requires(){return[m_]}static get pluginName(){return"ImageCaptionUI"}init(){const t=this.editor,e=t.editing.view,n=t.plugins.get("ImageCaptionUtils"),o=t.t;t.ui.componentFactory.add("toggleImageCaption",(i=>{const r=t.commands.get("toggleImageCaption"),s=new Rg(i);return s.set({icon:Ju.caption,tooltip:!0,isToggleable:!0}),s.bind("isOn","isEnabled").to(r,"value","isEnabled"),s.bind("label").to(r,"value",(t=>o(t?"Toggle caption off":"Toggle caption on"))),this.listenTo(s,"execute",(()=>{t.execute("toggleImageCaption",{focusCaptionOnShow:!0});const o=n.getCaptionFromModelSelection(t.model.document.selection);if(o){const n=t.editing.mapper.toViewElement(o);e.scrollToTheSelection(),e.change((t=>{t.addClass("image__caption_highlighted",n)}))}t.editing.view.focus()})),s}))}}var b_=n(2640),k_={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(b_.Z,k_);b_.Z.locals;class w_ extends zi{constructor(t,e){super(t),this._defaultStyles={imageBlock:!1,imageInline:!1},this._styles=new Map(e.map((t=>{if(t.isDefault)for(const e of t.modelElements)this._defaultStyles[e]=t.name;return[t.name,t]})))}refresh(){const t=this.editor.plugins.get("ImageUtils").getClosestSelectedImageElement(this.editor.model.document.selection);this.isEnabled=!!t,this.isEnabled?t.hasAttribute("imageStyle")?this.value=t.getAttribute("imageStyle"):this.value=this._defaultStyles[t.name]:this.value=!1}execute(t={}){const e=this.editor,n=e.model,o=e.plugins.get("ImageUtils");n.change((e=>{const i=t.value;let r=o.getClosestSelectedImageElement(n.document.selection);i&&this.shouldConvertImageType(i,r)&&(this.editor.execute(o.isBlockImage(r)?"imageTypeInline":"imageTypeBlock"),r=o.getClosestSelectedImageElement(n.document.selection)),!i||this._styles.get(i).isDefault?e.removeAttribute("imageStyle",r):e.setAttribute("imageStyle",i,r)}))}shouldConvertImageType(t,e){return!this._styles.get(t).modelElements.includes(e.name)}}var __=Object.defineProperty,A_=Object.getOwnPropertySymbols,C_=Object.prototype.hasOwnProperty,v_=Object.prototype.propertyIsEnumerable,y_=(t,e,n)=>e in t?__(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n,x_=(t,e)=>{for(var n in e||(e={}))C_.call(e,n)&&y_(t,n,e[n]);if(A_)for(var n of A_(e))v_.call(e,n)&&y_(t,n,e[n]);return t};const{objectFullWidth:E_,objectInline:T_,objectLeft:D_,objectRight:S_,objectCenter:B_,objectBlockLeft:I_,objectBlockRight:P_}=Ju,R_={get inline(){return{name:"inline",title:"In line",icon:T_,modelElements:["imageInline"],isDefault:!0}},get alignLeft(){return{name:"alignLeft",title:"Left aligned image",icon:D_,modelElements:["imageBlock","imageInline"],className:"image-style-align-left"}},get alignBlockLeft(){return{name:"alignBlockLeft",title:"Left aligned image",icon:I_,modelElements:["imageBlock"],className:"image-style-block-align-left"}},get alignCenter(){return{name:"alignCenter",title:"Centered image",icon:B_,modelElements:["imageBlock"],className:"image-style-align-center"}},get alignRight(){return{name:"alignRight",title:"Right aligned image",icon:S_,modelElements:["imageBlock","imageInline"],className:"image-style-align-right"}},get alignBlockRight(){return{name:"alignBlockRight",title:"Right aligned image",icon:P_,modelElements:["imageBlock"],className:"image-style-block-align-right"}},get block(){return{name:"block",title:"Centered image",icon:B_,modelElements:["imageBlock"],isDefault:!0}},get side(){return{name:"side",title:"Side image",icon:S_,modelElements:["imageBlock"],className:"image-style-side"}}},z_={full:E_,left:I_,right:P_,center:B_,inlineLeft:D_,inlineRight:S_,inline:T_},V_=[{name:"imageStyle:wrapText",title:"Wrap text",defaultItem:"imageStyle:alignLeft",items:["imageStyle:alignLeft","imageStyle:alignRight"]},{name:"imageStyle:breakText",title:"Break text",defaultItem:"imageStyle:block",items:["imageStyle:alignBlockLeft","imageStyle:block","imageStyle:alignBlockRight"]}];function O_(t){k("image-style-configuration-definition-invalid",t)}const F_={normalizeStyles:function(t){return(t.configuredStyles.options||[]).map((t=>function(t){t="string"==typeof t?R_[t]?x_({},R_[t]):{name:t}:function(t,e){const n=x_({},e);for(const o in t)Object.prototype.hasOwnProperty.call(e,o)||(n[o]=t[o]);return n}(R_[t.name],t);"string"==typeof t.icon&&(t.icon=z_[t.icon]||t.icon);return t}(t))).filter((e=>function(t,{isBlockPluginLoaded:e,isInlinePluginLoaded:n}){const{modelElements:o,name:i}=t;if(!(o&&o.length&&i))return O_({style:t}),!1;{const i=[e?"imageBlock":null,n?"imageInline":null];if(!o.some((t=>i.includes(t))))return k("image-style-missing-dependency",{style:t,missingPlugins:o.map((t=>"imageBlock"===t?"ImageBlockEditing":"ImageInlineEditing"))}),!1}return!0}(e,t)))},getDefaultStylesConfiguration:function(t,e){return t&&e?{options:["inline","alignLeft","alignRight","alignCenter","alignBlockLeft","alignBlockRight","block","side"]}:t?{options:["block","side"]}:e?{options:["inline","alignLeft","alignRight"]}:{}},getDefaultDropdownDefinitions:function(t){return t.has("ImageBlockEditing")&&t.has("ImageInlineEditing")?[...V_]:[]},warnInvalidStyle:O_,DEFAULT_OPTIONS:R_,DEFAULT_ICONS:z_,DEFAULT_DROPDOWN_DEFINITIONS:V_};function N_(t,e){for(const n of e)if(n.name===t)return n}class M_ extends Pi{static get pluginName(){return"ImageStyleEditing"}static get requires(){return[Ew]}init(){const{normalizeStyles:t,getDefaultStylesConfiguration:e}=F_,n=this.editor,o=n.plugins.has("ImageBlockEditing"),i=n.plugins.has("ImageInlineEditing");n.config.define("image.styles",e(o,i)),this.normalizedStyles=t({configuredStyles:n.config.get("image.styles"),isBlockPluginLoaded:o,isInlinePluginLoaded:i}),this._setupConversion(o,i),this._setupPostFixer(),n.commands.add("imageStyle",new w_(n,this.normalizedStyles))}_setupConversion(t,e){const n=this.editor,o=n.model.schema,i=(r=this.normalizedStyles,(t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=N_(e.attributeNewValue,r),i=N_(e.attributeOldValue,r),s=n.mapper.toViewElement(e.item),a=n.writer;i&&a.removeClass(i.className,s),o&&a.addClass(o.className,s)});var r;const s=function(t){const e={imageInline:t.filter((t=>!t.isDefault&&t.modelElements.includes("imageInline"))),imageBlock:t.filter((t=>!t.isDefault&&t.modelElements.includes("imageBlock")))};return(t,n,o)=>{if(!n.modelRange)return;const i=n.viewItem,r=yi(n.modelRange.getItems());if(r&&o.schema.checkAttribute(r,"imageStyle"))for(const t of e[r.name])o.consumable.consume(i,{classes:t.className})&&o.writer.setAttribute("imageStyle",t.name,r)}}(this.normalizedStyles);n.editing.downcastDispatcher.on("attribute:imageStyle",i),n.data.downcastDispatcher.on("attribute:imageStyle",i),t&&(o.extend("imageBlock",{allowAttributes:"imageStyle"}),n.data.upcastDispatcher.on("element:figure",s,{priority:"low"})),e&&(o.extend("imageInline",{allowAttributes:"imageStyle"}),n.data.upcastDispatcher.on("element:img",s,{priority:"low"}))}_setupPostFixer(){const t=this.editor,e=t.model.document,n=t.plugins.get(Ew),o=new Map(this.normalizedStyles.map((t=>[t.name,t])));e.registerPostFixer((t=>{let i=!1;for(const r of e.differ.getChanges())if("insert"==r.type||"attribute"==r.type&&"imageStyle"==r.attributeKey){let e="insert"==r.type?r.position.nodeAfter:r.range.start.nodeAfter;if(e&&e.is("element","paragraph")&&e.childCount>0&&(e=e.getChild(0)),!n.isImage(e))continue;const s=e.getAttribute("imageStyle");if(!s)continue;const a=o.get(s);a&&a.modelElements.includes(e.name)||(t.removeAttribute("imageStyle",e),i=!0)}return i}))}}var L_=n(5083),H_={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(L_.Z,H_);L_.Z.locals;class j_ extends Pi{static get requires(){return[M_]}static get pluginName(){return"ImageStyleUI"}get localizedDefaultStylesTitles(){const t=this.editor.t;return{"Wrap text":t("Wrap text"),"Break text":t("Break text"),"In line":t("In line"),"Full size image":t("Full size image"),"Side image":t("Side image"),"Left aligned image":t("Left aligned image"),"Centered image":t("Centered image"),"Right aligned image":t("Right aligned image")}}init(){const t=this.editor.plugins,e=this.editor.config.get("image.toolbar")||[],n=q_(t.get("ImageStyleEditing").normalizedStyles,this.localizedDefaultStylesTitles);for(const t of n)this._createButton(t);const o=q_([...e.filter(V),...F_.getDefaultDropdownDefinitions(t)],this.localizedDefaultStylesTitles);for(const t of o)this._createDropdown(t,n)}_createDropdown(t,e){const n=this.editor.ui.componentFactory;n.add(t.name,(o=>{let i;const{defaultItem:r,items:s,title:a}=t,l=s.filter((t=>e.find((({name:e})=>W_(e)===t)))).map((t=>{const e=n.create(t);return t===r&&(i=e),e}));s.length!==l.length&&F_.warnInvalidStyle({dropdown:t});const c=ym(o,em),d=c.buttonView,h=d.arrowView;return xm(c,l,{enableActiveItemFocusOnDropdownOpen:!0}),d.set({label:U_(a,i.label),class:null,tooltip:!0}),h.unbind("label"),h.set({label:a}),d.bind("icon").toMany(l,"isOn",((...t)=>{const e=t.findIndex(Or);return e<0?i.icon:l[e].icon})),d.bind("label").toMany(l,"isOn",((...t)=>{const e=t.findIndex(Or);return U_(a,e<0?i.label:l[e].label)})),d.bind("isOn").toMany(l,"isOn",((...t)=>t.some(Or))),d.bind("class").toMany(l,"isOn",((...t)=>t.some(Or)?"ck-splitbutton_flatten":void 0)),d.on("execute",(()=>{l.some((({isOn:t})=>t))?c.isOpen=!c.isOpen:i.fire("execute")})),c.bind("isEnabled").toMany(l,"isEnabled",((...t)=>t.some(Or))),this.listenTo(c,"execute",(()=>{this.editor.editing.view.focus()})),c}))}_createButton(t){const e=t.name;this.editor.ui.componentFactory.add(W_(e),(n=>{const o=this.editor.commands.get("imageStyle"),i=new Rg(n);return i.set({label:t.title,icon:t.icon,tooltip:!0,isToggleable:!0}),i.bind("isEnabled").to(o,"isEnabled"),i.bind("isOn").to(o,"value",(t=>t===e)),i.on("execute",this._executeCommand.bind(this,e)),i}))}_executeCommand(t){this.editor.execute("imageStyle",{value:t}),this.editor.editing.view.focus()}}function q_(t,e){for(const n of t)e[n.title]&&(n.title=e[n.title]);return t}function W_(t){return`imageStyle:${t}`}function U_(t,e){return(t?t+": ":"")+e}function $_(t){const e=t.map((t=>t.replace("+","\\+")));return new RegExp(`^image\\/(${e.join("|")})$`)}function G_(t){return new Promise(((e,n)=>{const o=t.getAttribute("src");fetch(o).then((t=>t.blob())).then((t=>{const n=K_(t,o),i=n.replace("image/",""),r=new File([t],`image.${i}`,{type:n});e(r)})).catch((t=>t&&"TypeError"===t.name?function(t){return function(t){return new Promise(((e,n)=>{const o=Io.document.createElement("img");o.addEventListener("load",(()=>{const t=Io.document.createElement("canvas");t.width=o.width,t.height=o.height;t.getContext("2d").drawImage(o,0,0),t.toBlob((t=>t?e(t):n()))})),o.addEventListener("error",(()=>n())),o.src=t}))}(t).then((e=>{const n=K_(e,t),o=n.replace("image/","");return new File([e],`image.${o}`,{type:n})}))}(o).then(e).catch(n):n(t)))}))}function K_(t,e){return t.type?t.type:e.match(/data:(image\/\w+);base64/)?e.match(/data:(image\/\w+);base64/)[1].toLowerCase():"image/jpeg"}class Z_ extends Pi{static get pluginName(){return"ImageUploadUI"}init(){const t=this.editor,e=t.t,n=n=>{const o=new xf(n),i=t.commands.get("uploadImage"),r=t.config.get("image.upload.types"),s=$_(r);return o.set({acceptedType:r.map((t=>`image/${t}`)).join(","),allowMultipleFiles:!0}),o.buttonView.set({label:e("Insert image"),icon:Ju.image,tooltip:!0}),o.buttonView.bind("isEnabled").to(i),o.on("done",((e,n)=>{const o=Array.from(n).filter((t=>s.test(t.type)));o.length&&(t.execute("uploadImage",{file:o}),t.editing.view.focus())})),o};t.ui.componentFactory.add("uploadImage",n),t.ui.componentFactory.add("imageUpload",n)}}var J_=n(3689),Y_={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(J_.Z,Y_);J_.Z.locals;var Q_=n(4036),X_={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Q_.Z,X_);Q_.Z.locals;var tA=n(3773),eA={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(tA.Z,eA);tA.Z.locals;class nA extends Pi{constructor(t){super(t),this.uploadStatusChange=(t,e,n)=>{const o=this.editor,i=e.item,r=i.getAttribute("uploadId");if(!n.consumable.consume(e.item,t.name))return;const s=o.plugins.get("ImageUtils"),a=o.plugins.get(vf),l=r?e.attributeNewValue:null,c=this.placeholder,d=o.editing.mapper.toViewElement(i),h=n.writer;if("reading"==l)return oA(d,h),void iA(s,c,d,h);if("uploading"==l){const t=a.loaders.get(r);return oA(d,h),void(t?(rA(d,h),function(t,e,n,o){const i=function(t){const e=t.createUIElement("div",{class:"ck-progress-bar"});return t.setCustomProperty("progressBar",!0,e),e}(e);e.insert(e.createPositionAt(t,"end"),i),n.on("change:uploadedPercent",((t,e,n)=>{o.change((t=>{t.setStyle("width",n+"%",i)}))}))}(d,h,t,o.editing.view),function(t,e,n,o){if(o.data){const i=t.findViewImgElement(e);n.setAttribute("src",o.data,i)}}(s,d,h,t)):iA(s,c,d,h))}"complete"==l&&a.loaders.get(r)&&function(t,e,n){const o=e.createUIElement("div",{class:"ck-image-upload-complete-icon"});e.insert(e.createPositionAt(t,"end"),o),setTimeout((()=>{n.change((t=>t.remove(t.createRangeOn(o))))}),3e3)}(d,h,o.editing.view),function(t,e){aA(t,e,"progressBar")}(d,h),rA(d,h),function(t,e){e.removeClass("ck-appear",t)}(d,h)},this.placeholder="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="}static get pluginName(){return"ImageUploadProgress"}init(){const t=this.editor;t.plugins.has("ImageBlockEditing")&&t.editing.downcastDispatcher.on("attribute:uploadStatus:imageBlock",this.uploadStatusChange),t.plugins.has("ImageInlineEditing")&&t.editing.downcastDispatcher.on("attribute:uploadStatus:imageInline",this.uploadStatusChange)}}function oA(t,e){t.hasClass("ck-appear")||e.addClass("ck-appear",t)}function iA(t,e,n,o){n.hasClass("ck-image-upload-placeholder")||o.addClass("ck-image-upload-placeholder",n);const i=t.findViewImgElement(n);i.getAttribute("src")!==e&&o.setAttribute("src",e,i),sA(n,"placeholder")||o.insert(o.createPositionAfter(i),function(t){const e=t.createUIElement("div",{class:"ck-upload-placeholder-loader"});return t.setCustomProperty("placeholder",!0,e),e}(o))}function rA(t,e){t.hasClass("ck-image-upload-placeholder")&&e.removeClass("ck-image-upload-placeholder",t),aA(t,e,"placeholder")}function sA(t,e){for(const n of t.getChildren())if(n.getCustomProperty(e))return n}function aA(t,e,n){const o=sA(t,n);o&&e.remove(e.createRangeOn(o))}var lA=Object.defineProperty,cA=Object.defineProperties,dA=Object.getOwnPropertyDescriptors,hA=Object.getOwnPropertySymbols,uA=Object.prototype.hasOwnProperty,gA=Object.prototype.propertyIsEnumerable,mA=(t,e,n)=>e in t?lA(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;class pA extends zi{refresh(){const t=this.editor,e=t.plugins.get("ImageUtils"),n=t.model.document.selection.getSelectedElement();this.isEnabled=e.isImageAllowed()||e.isImage(n)}execute(t){const e=ki(t.file),n=this.editor.model.document.selection,o=this.editor.plugins.get("ImageUtils"),i=Object.fromEntries(n.getAttributes());e.forEach(((t,e)=>{const r=n.getSelectedElement();if(e&&r&&o.isImage(r)){const e=this.editor.model.createPositionAfter(r);this._uploadImage(t,i,e)}else this._uploadImage(t,i)}))}_uploadImage(t,e,n){const o=this.editor,i=o.plugins.get(vf).createLoader(t),r=o.plugins.get("ImageUtils");var s,a;i&&r.insertImage((s=((t,e)=>{for(var n in e||(e={}))uA.call(e,n)&&mA(t,n,e[n]);if(hA)for(var n of hA(e))gA.call(e,n)&&mA(t,n,e[n]);return t})({},e),a={uploadId:i.id},cA(s,dA(a))),n)}}class fA extends Pi{constructor(t){super(t),t.config.define("image",{upload:{types:["jpeg","png","gif","bmp","webp","tiff"]}}),this._uploadImageElements=new Map}static get requires(){return[vf,_p,Nw,Ew]}static get pluginName(){return"ImageUploadEditing"}init(){const t=this.editor,e=t.model.document,n=t.conversion,o=t.plugins.get(vf),i=t.plugins.get("ImageUtils"),r=t.plugins.get("ClipboardPipeline"),s=$_(t.config.get("image.upload.types")),a=new pA(t);t.commands.add("uploadImage",a),t.commands.add("imageUpload",a),n.for("upcast").attributeToAttribute({view:{name:"img",key:"uploadId"},model:"uploadId"}),this.listenTo(t.editing.view.document,"clipboardInput",((e,n)=>{if(o=n.dataTransfer,Array.from(o.types).includes("text/html")&&""!==o.getData("text/html"))return;var o;const i=Array.from(n.dataTransfer.files).filter((t=>!!t&&s.test(t.type)));i.length&&(e.stop(),t.model.change((e=>{n.targetRanges&&e.setSelection(n.targetRanges.map((e=>t.editing.mapper.toModelRange(e)))),t.model.enqueueChange((()=>{t.execute("uploadImage",{file:i})}))})))})),this.listenTo(r,"inputTransformation",((e,n)=>{const r=Array.from(t.editing.view.createRangeIn(n.content)).map((t=>t.item)).filter((t=>function(t,e){return!(!t.isInlineImageView(e)||!e.getAttribute("src")||!e.getAttribute("src").match(/^data:image\/\w+;base64,/g)&&!e.getAttribute("src").match(/^blob:/g))}(i,t)&&!t.getAttribute("uploadProcessed"))).map((t=>({promise:G_(t),imageElement:t})));if(!r.length)return;const s=new ru(t.editing.view.document);for(const t of r){s.setAttribute("uploadProcessed",!0,t.imageElement);const e=o.createLoader(t.promise);e&&(s.setAttribute("src","",t.imageElement),s.setAttribute("uploadId",e.id,t.imageElement))}})),t.editing.view.document.on("dragover",((t,e)=>{e.preventDefault()})),e.on("change",(()=>{const n=e.differ.getChanges({includeChangesInGraveyard:!0}).reverse(),i=new Set;for(const e of n)if("insert"==e.type&&"$text"!=e.name){const n=e.position.nodeAfter,r="$graveyard"==e.position.root.rootName;for(const e of bA(t,n)){const t=e.getAttribute("uploadId");if(!t)continue;const n=o.loaders.get(t);n&&(r?i.has(t)||n.abort():(i.add(t),this._uploadImageElements.set(t,e),"idle"==n.status&&this._readAndUpload(n)))}}})),this.on("uploadComplete",((t,{imageElement:e,data:n})=>{const o=n.urls?n.urls:n;this.editor.model.change((t=>{t.setAttribute("src",o.default,e),this._parseAndSetSrcsetAttributeOnImage(o,e,t)}))}),{priority:"low"})}afterInit(){const t=this.editor.model.schema;this.editor.plugins.has("ImageBlockEditing")&&t.extend("imageBlock",{allowAttributes:["uploadId","uploadStatus"]}),this.editor.plugins.has("ImageInlineEditing")&&t.extend("imageInline",{allowAttributes:["uploadId","uploadStatus"]})}_readAndUpload(t){const e=this.editor,n=e.model,o=e.locale.t,r=e.plugins.get(vf),s=e.plugins.get(_p),a=e.plugins.get("ImageUtils"),l=this._uploadImageElements;return n.enqueueChange({isUndoable:!1},(e=>{e.setAttribute("uploadStatus","reading",l.get(t.id))})),t.read().then((()=>{const o=t.upload(),r=l.get(t.id);if(i.isSafari){const t=e.editing.mapper.toViewElement(r),n=a.findViewImgElement(t);e.editing.view.once("render",(()=>{if(!n.parent)return;const t=e.editing.view.domConverter.mapViewToDom(n.parent);if(!t)return;const o=t.style.display;t.style.display="none",t._ckHack=t.offsetHeight,t.style.display=o}))}return n.enqueueChange({isUndoable:!1},(t=>{t.setAttribute("uploadStatus","uploading",r)})),o})).then((e=>{n.enqueueChange({isUndoable:!1},(n=>{const o=l.get(t.id);n.setAttribute("uploadStatus","complete",o),this.fire("uploadComplete",{data:e,imageElement:o})})),c()})).catch((e=>{if("error"!==t.status&&"aborted"!==t.status)throw e;"error"==t.status&&e&&s.showWarning(e,{title:o("Upload failed"),namespace:"upload"}),n.enqueueChange({isUndoable:!1},(e=>{e.remove(l.get(t.id))})),c()}));function c(){n.enqueueChange({isUndoable:!1},(e=>{const n=l.get(t.id);e.removeAttribute("uploadId",n),e.removeAttribute("uploadStatus",n),l.delete(t.id)})),r.destroyLoader(t)}}_parseAndSetSrcsetAttributeOnImage(t,e,n){let o=0;const i=Object.keys(t).filter((t=>{const e=parseInt(t,10);if(!isNaN(e))return o=Math.max(o,e),!0})).map((e=>`${t[e]} ${e}w`)).join(", ");""!=i&&n.setAttribute("srcset",{data:i,width:o},e)}}function bA(t,e){const n=t.plugins.get("ImageUtils");return Array.from(t.model.createRangeOn(e)).filter((t=>n.isImage(t.item))).map((t=>t.item))}class kA extends zi{refresh(){const t=this.editor,e=t.plugins.get("ImageUtils").getClosestSelectedImageElement(t.model.document.selection);this.isEnabled=!!e,e&&e.hasAttribute("width")?this.value={width:e.getAttribute("width"),height:null}:this.value=null}execute(t){const e=this.editor,n=e.model,o=e.plugins.get("ImageUtils").getClosestSelectedImageElement(n.document.selection);this.value={width:t.width,height:null},o&&n.change((e=>{e.setAttribute("width",t.width,o)}))}}class wA extends Pi{static get requires(){return[Ew]}static get pluginName(){return"ImageResizeEditing"}constructor(t){super(t),t.config.define("image",{resizeUnit:"%",resizeOptions:[{name:"resizeImage:original",value:null,icon:"original"},{name:"resizeImage:25",value:"25",icon:"small"},{name:"resizeImage:50",value:"50",icon:"medium"},{name:"resizeImage:75",value:"75",icon:"large"}]})}init(){const t=this.editor,e=new kA(t);this._registerSchema(),this._registerConverters("imageBlock"),this._registerConverters("imageInline"),t.commands.add("resizeImage",e),t.commands.add("imageResize",e)}_registerSchema(){this.editor.plugins.has("ImageBlockEditing")&&this.editor.model.schema.extend("imageBlock",{allowAttributes:"width"}),this.editor.plugins.has("ImageInlineEditing")&&this.editor.model.schema.extend("imageInline",{allowAttributes:"width"})}_registerConverters(t){const e=this.editor;e.conversion.for("downcast").add((e=>e.on(`attribute:width:${t}`,((t,e,n)=>{if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewElement(e.item);null!==e.attributeNewValue?(o.setStyle("width",e.attributeNewValue,i),o.addClass("image_resized",i)):(o.removeStyle("width",i),o.removeClass("image_resized",i))})))),e.conversion.for("upcast").attributeToAttribute({view:{name:"imageBlock"===t?"figure":"img",styles:{width:/.+/}},model:{key:"width",value:t=>t.getStyle("width")}})}}const _A={small:Ju.objectSizeSmall,medium:Ju.objectSizeMedium,large:Ju.objectSizeLarge,original:Ju.objectSizeFull};class AA extends Pi{constructor(t){super(t),this._resizeUnit=t.config.get("image.resizeUnit")}static get requires(){return[wA]}static get pluginName(){return"ImageResizeButtons"}init(){const t=this.editor,e=t.config.get("image.resizeOptions"),n=t.commands.get("resizeImage");this.bind("isEnabled").to(n);for(const t of e)this._registerImageResizeButton(t);this._registerImageResizeDropdown(e)}_registerImageResizeButton(t){const e=this.editor,{name:n,value:o,icon:i}=t,r=o?o+this._resizeUnit:null;e.ui.componentFactory.add(n,(n=>{const o=new Rg(n),s=e.commands.get("resizeImage"),a=this._getOptionLabelValue(t,!0);if(!_A[i])throw new b("imageresizebuttons-missing-icon",e,t);return o.set({label:a,icon:_A[i],tooltip:a,isToggleable:!0}),o.bind("isEnabled").to(this),o.bind("isOn").to(s,"value",CA(r)),this.listenTo(o,"execute",(()=>{e.execute("resizeImage",{width:r})})),o}))}_registerImageResizeDropdown(t){const e=this.editor,n=e.t,o=t.find((t=>!t.value)),i=i=>{const r=e.commands.get("resizeImage"),s=ym(i,Qg),a=s.buttonView;return a.set({tooltip:n("Resize image"),commandValue:o.value,icon:_A.medium,isToggleable:!0,label:this._getOptionLabelValue(o),withText:!0,class:"ck-resize-image-button"}),a.bind("label").to(r,"value",(t=>t&&t.width?t.width:this._getOptionLabelValue(o))),s.bind("isEnabled").to(this),Tm(s,(()=>this._getResizeDropdownListItemDefinitions(t,r)),{ariaLabel:n("Image resize list")}),this.listenTo(s,"execute",(t=>{e.execute(t.source.commandName,{width:t.source.commandValue}),e.editing.view.focus()})),s};e.ui.componentFactory.add("resizeImage",i),e.ui.componentFactory.add("imageResize",i)}_getOptionLabelValue(t,e=!1){const n=this.editor.t;return t.label?t.label:e?t.value?n("Resize image to %0",t.value+this._resizeUnit):n("Resize image to the original size"):t.value?t.value+this._resizeUnit:n("Original")}_getResizeDropdownListItemDefinitions(t,e){const n=new vi;return t.map((t=>{const o=t.value?t.value+this._resizeUnit:null,i={type:"button",model:new Ap({commandName:"resizeImage",commandValue:o,label:this._getOptionLabelValue(t),withText:!0,icon:null})};i.model.bind("isOn").to(e,"value",CA(o)),n.add(i)})),n}}function CA(t){return e=>null===t&&e===t||null!==e&&e.width===t}const vA=/(image|image-inline)/,yA="image_resized";class xA extends Pi{static get requires(){return[pw]}static get pluginName(){return"ImageResizeHandles"}init(){const t=this.editor.commands.get("resizeImage");this.bind("isEnabled").to(t),this._setupResizerCreator()}_setupResizerCreator(){const t=this.editor,e=t.editing.view;e.addObserver(Jw),this.listenTo(e.document,"imageLoaded",((n,o)=>{if(!o.target.matches("figure.image.ck-widget > img,figure.image.ck-widget > picture > img,figure.image.ck-widget > a > img,figure.image.ck-widget > a > picture > img,span.image-inline.ck-widget > img,span.image-inline.ck-widget > picture > img"))return;const i=t.editing.view.domConverter,r=i.domToView(o.target).findAncestor({classes:vA});let s=this.editor.plugins.get(pw).getResizerByViewElement(r);if(s)return void s.redraw();const a=t.editing.mapper,l=a.toModelElement(r);s=t.plugins.get(pw).attachTo({unit:t.config.get("image.resizeUnit"),modelElement:l,viewElement:r,editor:t,getHandleHost:t=>t.querySelector("img"),getResizeHost:()=>i.mapViewToDom(a.toViewElement(l.parent)),isCentered(){const t=l.getAttribute("imageStyle");return!t||"block"==t||"alignCenter"==t},onCommit(n){e.change((t=>{t.removeClass(yA,r)})),t.execute("resizeImage",{width:n})}}),s.on("updateSize",(()=>{r.hasClass(yA)||e.change((t=>{t.addClass(yA,r)}))})),s.bind("isEnabled").to(this)}))}}var EA=n(6270),TA={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(EA.Z,TA);EA.Z.locals;class DA{constructor(){this._definitions=new Set}get length(){return this._definitions.size}add(t){Array.isArray(t)?t.forEach((t=>this._definitions.add(t))):this._definitions.add(t)}getDispatcher(){return t=>{t.on("attribute:linkHref",((t,e,n)=>{if(!n.consumable.test(e.item,"attribute:linkHref"))return;if(!e.item.is("selection")&&!n.schema.isInline(e.item))return;const o=n.writer,i=o.document.selection;for(const t of this._definitions){const r=o.createAttributeElement("a",t.attributes,{priority:5});t.classes&&o.addClass(t.classes,r);for(const e in t.styles)o.setStyle(e,t.styles[e],r);o.setCustomProperty("link",!0,r),t.callback(e.attributeNewValue)?e.item.is("selection")?o.wrap(i.getFirstRange(),r):o.wrap(n.mapper.toViewRange(e.range),r):o.unwrap(n.mapper.toViewRange(e.range),r)}}),{priority:"high"})}}getDispatcherForLinkedImage(){return t=>{t.on("attribute:linkHref:imageBlock",((t,e,{writer:n,mapper:o})=>{const i=o.toViewElement(e.item),r=Array.from(i.getChildren()).find((t=>t.is("element","a")));for(const t of this._definitions){const o=Ti(t.attributes);if(t.callback(e.attributeNewValue)){for(const[t,e]of o)"class"===t?n.addClass(e,r):n.setAttribute(t,e,r);t.classes&&n.addClass(t.classes,r);for(const e in t.styles)n.setStyle(e,t.styles[e],r)}else{for(const[t,e]of o)"class"===t?n.removeClass(e,r):n.removeAttribute(t,r);t.classes&&n.removeClass(t.classes,r);for(const e in t.styles)n.removeStyle(e,r)}}}))}}}const SA=function(t,e,n){var o=t.length;return n=void 0===n?o:n,!e&&n>=o?t:yr(t,e,n)};var BA=RegExp("[\\u200d\\ud800-\\udfff\\u0300-\\u036f\\ufe20-\\ufe2f\\u20d0-\\u20ff\\ufe0e\\ufe0f]");const IA=function(t){return BA.test(t)};const PA=function(t){return t.split("")};var RA="\\ud800-\\udfff",zA="["+RA+"]",VA="[\\u0300-\\u036f\\ufe20-\\ufe2f\\u20d0-\\u20ff]",OA="\\ud83c[\\udffb-\\udfff]",FA="[^"+RA+"]",NA="(?:\\ud83c[\\udde6-\\uddff]){2}",MA="[\\ud800-\\udbff][\\udc00-\\udfff]",LA="(?:"+VA+"|"+OA+")"+"?",HA="[\\ufe0e\\ufe0f]?",jA=HA+LA+("(?:\\u200d(?:"+[FA,NA,MA].join("|")+")"+HA+LA+")*"),qA="(?:"+[FA+VA+"?",VA,NA,MA,zA].join("|")+")",WA=RegExp(OA+"(?="+OA+")|"+qA+jA,"g");const UA=function(t){return t.match(WA)||[]};const $A=function(t){return IA(t)?UA(t):PA(t)};const GA=function(t){return function(e){e=wr(e);var n=IA(e)?$A(e):void 0,o=n?n[0]:e.charAt(0),i=n?SA(n,1).join(""):e.slice(1);return o[t]()+i}}("toUpperCase"),KA=/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205f\u3000]/g,ZA=/^(?:(?:https?|ftps?|mailto):|[^a-z]|[a-z+.-]+(?:[^a-z+.:-]|$))/i,JA=/^[\S]+@((?![-_])(?:[-\w\u00a1-\uffff]{0,63}[^-_]\.))+(?:[a-z\u00a1-\uffff]{2,})$/i,YA=/^((\w+:(\/{2,})?)|(\W))/i,QA="Ctrl+K";function XA(t,{writer:e}){const n=e.createAttributeElement("a",{href:t},{priority:5});return e.setCustomProperty("link",!0,n),n}function tC(t){const e=String(t);return function(t){const e=t.replace(KA,"");return!!e.match(ZA)}(e)?e:"#"}function eC(t,e){return!!t&&e.checkAttribute(t.name,"linkHref")}function nC(t,e){const n=(o=t,JA.test(o)?"mailto:":e);var o;const i=!!n&&!oC(t);return t&&i?n+t:t}function oC(t){return YA.test(t)}function iC(t){window.open(t,"_blank","noopener")}class rC extends zi{constructor(){super(...arguments),this.manualDecorators=new vi,this.automaticDecorators=new DA}restoreManualDecoratorStates(){for(const t of this.manualDecorators)t.value=this._getDecoratorStateFromModel(t.id)}refresh(){const t=this.editor.model,e=t.document.selection,n=e.getSelectedElement()||yi(e.getSelectedBlocks());eC(n,t.schema)?(this.value=n.getAttribute("linkHref"),this.isEnabled=t.schema.checkAttribute(n,"linkHref")):(this.value=e.getAttribute("linkHref"),this.isEnabled=t.schema.checkAttributeInSelection(e,"linkHref"));for(const t of this.manualDecorators)t.value=this._getDecoratorStateFromModel(t.id)}execute(t,e={}){const n=this.editor.model,o=n.document.selection,i=[],r=[];for(const t in e)e[t]?i.push(t):r.push(t);n.change((e=>{if(o.isCollapsed){const s=o.getFirstPosition();if(o.hasAttribute("linkHref")){const a=sC(o);let l=rb(s,"linkHref",o.getAttribute("linkHref"),n);o.getAttribute("linkHref")===a&&(l=this._updateLinkContent(n,e,l,t)),e.setAttribute("linkHref",t,l),i.forEach((t=>{e.setAttribute(t,!0,l)})),r.forEach((t=>{e.removeAttribute(t,l)})),e.setSelection(e.createPositionAfter(l.end.nodeBefore))}else if(""!==t){const r=Ti(o.getAttributes());r.set("linkHref",t),i.forEach((t=>{r.set(t,!0)}));const{end:a}=n.insertContent(e.createText(t,r),s);e.setSelection(a)}["linkHref",...i,...r].forEach((t=>{e.removeSelectionAttribute(t)}))}else{const s=n.schema.getValidRanges(o.getRanges(),"linkHref"),a=[];for(const t of o.getSelectedBlocks())n.schema.checkAttribute(t,"linkHref")&&a.push(e.createRangeOn(t));const l=a.slice();for(const t of s)this._isRangeToUpdate(t,a)&&l.push(t);for(const s of l){let a=s;if(1===l.length){const i=sC(o);o.getAttribute("linkHref")===i&&(a=this._updateLinkContent(n,e,s,t),e.setSelection(e.createSelection(a)))}e.setAttribute("linkHref",t,a),i.forEach((t=>{e.setAttribute(t,!0,a)})),r.forEach((t=>{e.removeAttribute(t,a)}))}}}))}_getDecoratorStateFromModel(t){const e=this.editor.model,n=e.document.selection,o=n.getSelectedElement();return eC(o,e.schema)?o.getAttribute(t):n.getAttribute(t)}_isRangeToUpdate(t,e){for(const n of e)if(n.containsRange(t))return!1;return!0}_updateLinkContent(t,e,n,o){const i=e.createText(o,{linkHref:o});return t.insertContent(i,n)}}function sC(t){if(t.isCollapsed){const e=t.getFirstPosition();return e.textNode&&e.textNode.data}{const e=Array.from(t.getFirstRange().getItems());if(e.length>1)return null;const n=e[0];return n.is("$text")||n.is("$textProxy")?n.data:null}}class aC extends zi{refresh(){const t=this.editor.model,e=t.document.selection,n=e.getSelectedElement();eC(n,t.schema)?this.isEnabled=t.schema.checkAttribute(n,"linkHref"):this.isEnabled=t.schema.checkAttributeInSelection(e,"linkHref")}execute(){const t=this.editor,e=this.editor.model,n=e.document.selection,o=t.commands.get("link");e.change((t=>{const i=n.isCollapsed?[rb(n.getFirstPosition(),"linkHref",n.getAttribute("linkHref"),e)]:e.schema.getValidRanges(n.getRanges(),"linkHref");for(const e of i)if(t.removeAttribute("linkHref",e),o)for(const n of o.manualDecorators)t.removeAttribute(n.id,e)}))}}class lC extends(j()){constructor({id:t,label:e,attributes:n,classes:o,styles:i,defaultValue:r}){super(),this.id=t,this.set("value",void 0),this.defaultValue=r,this.label=e,this.attributes=n,this.classes=o,this.styles=i}_createPattern(){return{attributes:this.attributes,classes:this.classes,styles:this.styles}}}var cC=n(1134),dC={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(cC.Z,dC);cC.Z.locals;var hC=Object.defineProperty,uC=Object.getOwnPropertySymbols,gC=Object.prototype.hasOwnProperty,mC=Object.prototype.propertyIsEnumerable,pC=(t,e,n)=>e in t?hC(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n,fC=(t,e)=>{for(var n in e||(e={}))gC.call(e,n)&&pC(t,n,e[n]);if(uC)for(var n of uC(e))mC.call(e,n)&&pC(t,n,e[n]);return t};const bC="automatic",kC=/^(https?:)?\/\//;class wC extends Pi{static get pluginName(){return"LinkEditing"}static get requires(){return[Gf,Vf,Nw]}constructor(t){super(t),t.config.define("link",{addTargetToExternalLinks:!1})}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:"linkHref"}),t.conversion.for("dataDowncast").attributeToElement({model:"linkHref",view:XA}),t.conversion.for("editingDowncast").attributeToElement({model:"linkHref",view:(t,e)=>XA(tC(t),e)}),t.conversion.for("upcast").elementToAttribute({view:{name:"a",attributes:{href:!0}},model:{key:"linkHref",value:t=>t.getAttribute("href")}}),t.commands.add("link",new rC(t)),t.commands.add("unlink",new aC(t));const e=function(t,e){const n={"Open in a new tab":t("Open in a new tab"),Downloadable:t("Downloadable")};return e.forEach((t=>("label"in t&&n[t.label]&&(t.label=n[t.label]),t))),e}(t.t,function(t){const e=[];if(t)for(const[n,o]of Object.entries(t)){const t=Object.assign({},o,{id:`link${GA(n)}`});e.push(t)}return e}(t.config.get("link.decorators")));this._enableAutomaticDecorators(e.filter((t=>t.mode===bC))),this._enableManualDecorators(e.filter((t=>"manual"===t.mode)));t.plugins.get(Gf).registerAttribute("linkHref"),ab(t,"linkHref","a","ck-link_selected"),this._enableInsertContentSelectionAttributesFixer(),this._enableClickingAfterLink(),this._enableTypingOverLink(),this._handleDeleteContentAfterLink(),this._enableClipboardIntegration()}_enableAutomaticDecorators(t){const e=this.editor,n=e.commands.get("link").automaticDecorators;e.config.get("link.addTargetToExternalLinks")&&n.add({id:"linkIsExternal",mode:bC,callback:t=>!!t&&kC.test(t),attributes:{target:"_blank",rel:"noopener noreferrer"}}),n.add(t),n.length&&e.conversion.for("downcast").add(n.getDispatcher())}_enableManualDecorators(t){if(!t.length)return;const e=this.editor,n=e.commands.get("link").manualDecorators;t.forEach((t=>{e.model.schema.extend("$text",{allowAttributes:t.id});const o=new lC(t);n.add(o),e.conversion.for("downcast").attributeToElement({model:o.id,view:(t,{writer:e,schema:n},{item:i})=>{if((i.is("selection")||n.isInline(i))&&t){const t=e.createAttributeElement("a",o.attributes,{priority:5});o.classes&&e.addClass(o.classes,t);for(const n in o.styles)e.setStyle(n,o.styles[n],t);return e.setCustomProperty("link",!0,t),t}}}),e.conversion.for("upcast").elementToAttribute({view:fC({name:"a"},o._createPattern()),model:{key:o.id}})}))}_enableLinkOpen(){const t=this.editor,e=t.editing.view.document;this.listenTo(e,"click",((t,e)=>{if(!(i.isMac?e.domEvent.metaKey:e.domEvent.ctrlKey))return;let n=e.domTarget;if("a"!=n.tagName.toLowerCase()&&(n=n.closest("a")),!n)return;const o=n.getAttribute("href");o&&(t.stop(),e.preventDefault(),iC(o))}),{context:"$capture"}),this.listenTo(e,"keydown",((e,n)=>{const o=t.commands.get("link").value;!!o&&n.keyCode===ui.enter&&n.altKey&&(e.stop(),iC(o))}))}_enableInsertContentSelectionAttributesFixer(){const t=this.editor.model,e=t.document.selection;this.listenTo(t,"insertContent",(()=>{const n=e.anchor.nodeBefore,o=e.anchor.nodeAfter;e.hasAttribute("linkHref")&&n&&n.hasAttribute("linkHref")&&(o&&o.hasAttribute("linkHref")||t.change((e=>{_C(e,CC(t.schema))})))}),{priority:"low"})}_enableClickingAfterLink(){const t=this.editor,e=t.model;t.editing.view.addObserver(iu);let n=!1;this.listenTo(t.editing.view.document,"mousedown",(()=>{n=!0})),this.listenTo(t.editing.view.document,"selectionChange",(()=>{if(!n)return;n=!1;const t=e.document.selection;if(!t.isCollapsed)return;if(!t.hasAttribute("linkHref"))return;const o=t.getFirstPosition(),i=rb(o,"linkHref",t.getAttribute("linkHref"),e);(o.isTouching(i.start)||o.isTouching(i.end))&&e.change((t=>{_C(t,CC(e.schema))}))}))}_enableTypingOverLink(){const t=this.editor,e=t.editing.view;let n=null,o=!1;this.listenTo(e.document,"delete",(()=>{o=!0}),{priority:"high"}),this.listenTo(t.model,"deleteContent",(()=>{const e=t.model.document.selection;e.isCollapsed||(o?o=!1:AC(t)&&function(t){const e=t.document.selection,n=e.getFirstPosition(),o=e.getLastPosition(),i=n.nodeAfter;if(!i)return!1;if(!i.is("$text"))return!1;if(!i.hasAttribute("linkHref"))return!1;const r=o.textNode||o.nodeBefore;if(i===r)return!0;return rb(n,"linkHref",i.getAttribute("linkHref"),t).containsRange(t.createRange(n,o),!0)}(t.model)&&(n=e.getAttributes()))}),{priority:"high"}),this.listenTo(t.model,"insertContent",((e,[i])=>{o=!1,AC(t)&&n&&(t.model.change((t=>{for(const[e,o]of n)t.setAttribute(e,o,i)})),n=null)}),{priority:"high"})}_handleDeleteContentAfterLink(){const t=this.editor,e=t.model,n=e.document.selection,o=t.editing.view;let i=!1,r=!1;this.listenTo(o.document,"delete",((t,e)=>{r="backward"===e.direction}),{priority:"high"}),this.listenTo(e,"deleteContent",(()=>{i=!1;const t=n.getFirstPosition(),o=n.getAttribute("linkHref");if(!o)return;const r=rb(t,"linkHref",o,e);i=r.containsPosition(t)||r.end.isEqual(t)}),{priority:"high"}),this.listenTo(e,"deleteContent",(()=>{r&&(r=!1,i||t.model.enqueueChange((t=>{_C(t,CC(e.schema))})))}),{priority:"low"})}_enableClipboardIntegration(){const t=this.editor,e=t.model,n=this.editor.config.get("link.defaultProtocol");n&&this.listenTo(t.plugins.get("ClipboardPipeline"),"contentInsertion",((t,o)=>{e.change((t=>{const e=t.createRangeIn(o.content);for(const o of e.getItems())if(o.hasAttribute("linkHref")){const e=nC(o.getAttribute("linkHref"),n);t.setAttribute("linkHref",e,o)}}))}))}}function _C(t,e){t.removeSelectionAttribute("linkHref");for(const n of e)t.removeSelectionAttribute(n)}function AC(t){return t.model.change((t=>t.batch)).isTyping}function CC(t){return t.getDefinition("$text").allowAttributes.filter((t=>t.startsWith("link")))}var vC=n(8117),yC={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(vC.Z,yC);vC.Z.locals;class xC extends ig{constructor(t,e){super(t),this.focusTracker=new xi,this.keystrokes=new Ei,this._focusables=new eg;const n=t.t;this.urlInputView=this._createUrlInput(),this.saveButtonView=this._createButton(n("Save"),Ju.check,"ck-button-save"),this.saveButtonView.type="submit",this.cancelButtonView=this._createButton(n("Cancel"),Ju.cancel,"ck-button-cancel","cancel"),this._manualDecoratorSwitches=this._createManualDecoratorSwitches(e),this.children=this._createFormChildren(e.manualDecorators),this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}});const o=["ck","ck-link-form","ck-responsive-form"];e.manualDecorators.length&&o.push("ck-link-form_layout-vertical","ck-vertical-form"),this.setTemplate({tag:"form",attributes:{class:o,tabindex:"-1"},children:this.children})}getDecoratorSwitchesState(){return Array.from(this._manualDecoratorSwitches).reduce(((t,e)=>(t[e.name]=e.isOn,t)),{})}render(){super.render(),Xu({view:this});[this.urlInputView,...this._manualDecoratorSwitches,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createUrlInput(){const t=this.locale.t,e=new fp(this.locale,bp);return e.label=t("Link URL"),e}_createButton(t,e,n,o){const i=new Rg(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}_createManualDecoratorSwitches(t){const e=this.createCollection();for(const n of t.manualDecorators){const o=new Og(this.locale);o.set({name:n.id,label:n.label,withText:!0}),o.bind("isOn").toMany([n,t],"value",((t,e)=>void 0===e&&void 0===t?!!n.defaultValue:!!t)),o.on("execute",(()=>{n.set("value",!o.isOn)})),e.add(o)}return e}_createFormChildren(t){const e=this.createCollection();if(e.add(this.urlInputView),t.length){const t=new ig;t.setTemplate({tag:"ul",children:this._manualDecoratorSwitches.map((t=>({tag:"li",children:[t],attributes:{class:["ck","ck-list__item"]}}))),attributes:{class:["ck","ck-reset","ck-list"]}}),e.add(t)}return e.add(this.saveButtonView),e.add(this.cancelButtonView),e}}var EC=n(9376),TC={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(EC.Z,TC);EC.Z.locals;class DC extends ig{constructor(t){super(t),this.focusTracker=new xi,this.keystrokes=new Ei,this._focusables=new eg;const e=t.t;this.previewButtonView=this._createPreviewButton(),this.unlinkButtonView=this._createButton(e("Unlink"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184zm4.919 10.562-1.414 1.414a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.061-1.06l1.414 1.414 1.414-1.415a.75.75 0 0 1 1.061 1.061l-1.414 1.414 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414z"/></svg>',"unlink"),this.editButtonView=this._createButton(e("Edit link"),Ju.pencil,"edit"),this.set("href",void 0),this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-link-actions","ck-responsive-form"],tabindex:"-1"},children:[this.previewButtonView,this.editButtonView,this.unlinkButtonView]})}render(){super.render();[this.previewButtonView,this.editButtonView,this.unlinkButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createButton(t,e,n){const o=new Rg(this.locale);return o.set({label:t,icon:e,tooltip:!0}),o.delegate("execute").to(this,n),o}_createPreviewButton(){const t=new Rg(this.locale),e=this.bindTemplate,n=this.t;return t.set({withText:!0,tooltip:n("Open link in new tab")}),t.extendTemplate({attributes:{class:["ck","ck-link-actions__preview"],href:e.to("href",(t=>t&&tC(t))),target:"_blank",rel:"noopener noreferrer"}}),t.bind("label").to(this,"href",(t=>t||n("This link has no URL"))),t.bind("isEnabled").to(this,"href",(t=>!!t)),t.template.tag="a",t.template.eventListeners={},t}}const SC="link-ui";class BC extends Pi{constructor(){super(...arguments),this.actionsView=null,this.formView=null}static get requires(){return[Dp]}static get pluginName(){return"LinkUI"}init(){const t=this.editor;t.editing.view.addObserver(ou),this._balloon=t.plugins.get(Dp),this._createToolbarLinkButton(),this._enableBalloonActivators(),t.conversion.for("editingDowncast").markerToHighlight({model:SC,view:{classes:["ck-fake-link-selection"]}}),t.conversion.for("editingDowncast").markerToElement({model:SC,view:{name:"span",classes:["ck-fake-link-selection","ck-fake-link-selection_collapsed"]}})}destroy(){super.destroy(),this.formView&&this.formView.destroy(),this.actionsView&&this.actionsView.destroy()}_createViews(){this.actionsView=this._createActionsView(),this.formView=this._createFormView(),this._enableUserBalloonInteractions()}_createActionsView(){const t=this.editor,e=new DC(t.locale),n=t.commands.get("link"),o=t.commands.get("unlink");return e.bind("href").to(n,"value"),e.editButtonView.bind("isEnabled").to(n),e.unlinkButtonView.bind("isEnabled").to(o),this.listenTo(e,"edit",(()=>{this._addFormView()})),this.listenTo(e,"unlink",(()=>{t.execute("unlink"),this._hideUI()})),e.keystrokes.set("Esc",((t,e)=>{this._hideUI(),e()})),e.keystrokes.set(QA,((t,e)=>{this._addFormView(),e()})),e}_createFormView(){const t=this.editor,e=t.commands.get("link"),n=t.config.get("link.defaultProtocol"),o=new(Qu(xC))(t.locale,e);return o.urlInputView.fieldView.bind("value").to(e,"value"),o.urlInputView.bind("isEnabled").to(e,"isEnabled"),o.saveButtonView.bind("isEnabled").to(e),this.listenTo(o,"submit",(()=>{const{value:e}=o.urlInputView.fieldView.element,i=nC(e,n);t.execute("link",i,o.getDecoratorSwitchesState()),this._closeFormView()})),this.listenTo(o,"cancel",(()=>{this._closeFormView()})),o.keystrokes.set("Esc",((t,e)=>{this._closeFormView(),e()})),o}_createToolbarLinkButton(){const t=this.editor,e=t.commands.get("link"),n=t.t;t.ui.componentFactory.add("link",(t=>{const o=new Rg(t);return o.isEnabled=!0,o.label=n("Link"),o.icon='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184z"/></svg>',o.keystroke=QA,o.tooltip=!0,o.isToggleable=!0,o.bind("isEnabled").to(e,"isEnabled"),o.bind("isOn").to(e,"value",(t=>!!t)),this.listenTo(o,"execute",(()=>this._showUI(!0))),o}))}_enableBalloonActivators(){const t=this.editor,e=t.editing.view.document;this.listenTo(e,"click",(()=>{this._getSelectedLinkElement()&&this._showUI()})),t.keystrokes.set(QA,((e,n)=>{n(),t.commands.get("link").isEnabled&&this._showUI(!0)}))}_enableUserBalloonInteractions(){this.editor.keystrokes.set("Tab",((t,e)=>{this._areActionsVisible&&!this.actionsView.focusTracker.isFocused&&(this.actionsView.focus(),e())}),{priority:"high"}),this.editor.keystrokes.set("Esc",((t,e)=>{this._isUIVisible&&(this._hideUI(),e())})),Yu({emitter:this.formView,activator:()=>this._isUIInPanel,contextElements:()=>[this._balloon.view.element],callback:()=>this._hideUI()})}_addActionsView(){this.actionsView||this._createViews(),this._areActionsInPanel||this._balloon.add({view:this.actionsView,position:this._getBalloonPositionData()})}_addFormView(){if(this.formView||this._createViews(),this._isFormInPanel)return;const t=this.editor.commands.get("link");this.formView.disableCssTransitions(),this._balloon.add({view:this.formView,position:this._getBalloonPositionData()}),this._balloon.visibleView===this.formView&&this.formView.urlInputView.fieldView.select(),this.formView.enableCssTransitions(),this.formView.urlInputView.fieldView.element.value=t.value||""}_closeFormView(){const t=this.editor.commands.get("link");t.restoreManualDecoratorStates(),void 0!==t.value?this._removeFormView():this._hideUI()}_removeFormView(){this._isFormInPanel&&(this.formView.saveButtonView.focus(),this._balloon.remove(this.formView),this.editor.editing.view.focus(),this._hideFakeVisualSelection())}_showUI(t=!1){this.formView||this._createViews(),this._getSelectedLinkElement()?(this._areActionsVisible?this._addFormView():this._addActionsView(),t&&this._balloon.showStack("main")):(this._showFakeVisualSelection(),this._addActionsView(),t&&this._balloon.showStack("main"),this._addFormView()),this._startUpdatingUI()}_hideUI(){if(!this._isUIInPanel)return;const t=this.editor;this.stopListening(t.ui,"update"),this.stopListening(this._balloon,"change:visibleView"),t.editing.view.focus(),this._removeFormView(),this._balloon.remove(this.actionsView),this._hideFakeVisualSelection()}_startUpdatingUI(){const t=this.editor,e=t.editing.view.document;let n=this._getSelectedLinkElement(),o=r();const i=()=>{const t=this._getSelectedLinkElement(),e=r();n&&!t||!n&&e!==o?this._hideUI():this._isUIVisible&&this._balloon.updatePosition(this._getBalloonPositionData()),n=t,o=e};function r(){return e.selection.focus.getAncestors().reverse().find((t=>t.is("element")))}this.listenTo(t.ui,"update",i),this.listenTo(this._balloon,"change:visibleView",i)}get _isFormInPanel(){return!!this.formView&&this._balloon.hasView(this.formView)}get _areActionsInPanel(){return!!this.actionsView&&this._balloon.hasView(this.actionsView)}get _areActionsVisible(){return!!this.actionsView&&this._balloon.visibleView===this.actionsView}get _isUIInPanel(){return this._isFormInPanel||this._areActionsInPanel}get _isUIVisible(){const t=this._balloon.visibleView;return!!this.formView&&t==this.formView||this._areActionsVisible}_getBalloonPositionData(){const t=this.editor.editing.view,e=this.editor.model,n=t.document;let o;if(e.markers.has(SC)){const e=Array.from(this.editor.editing.mapper.markerNameToElements(SC)),n=t.createRange(t.createPositionBefore(e[0]),t.createPositionAfter(e[e.length-1]));o=t.domConverter.viewRangeToDom(n)}else o=()=>{const e=this._getSelectedLinkElement();return e?t.domConverter.mapViewToDom(e):t.domConverter.viewRangeToDom(n.selection.getFirstRange())};return{target:o}}_getSelectedLinkElement(){const t=this.editor.editing.view,e=t.document.selection,n=e.getSelectedElement();if(e.isCollapsed||n&&Dk(n))return IC(e.getFirstPosition());{const n=e.getFirstRange().getTrimmed(),o=IC(n.start),i=IC(n.end);return o&&o==i&&t.createRangeIn(o).getTrimmed().isEqual(n)?o:null}}_showFakeVisualSelection(){const t=this.editor.model;t.change((e=>{const n=t.document.selection.getFirstRange();if(t.markers.has(SC))e.updateMarker(SC,{range:n});else if(n.start.isAtEnd){const o=n.start.getLastMatchingPosition((({item:e})=>!t.schema.isContent(e)),{boundaries:n});e.addMarker(SC,{usingOperation:!1,affectsData:!1,range:e.createRange(o,n.end)})}else e.addMarker(SC,{usingOperation:!1,affectsData:!1,range:n})}))}_hideFakeVisualSelection(){const t=this.editor.model;t.markers.has(SC)&&t.change((t=>{t.removeMarker(SC)}))}}function IC(t){return t.getAncestors().find((t=>{return(e=t).is("attributeElement")&&!!e.getCustomProperty("link");var e}))||null}const PC=new RegExp("(^|\\s)(((?:(?:(?:https?|ftp):)?\\/\\/)(?:\\S+(?::\\S*)?@)?(?:(?:[1-9]\\d?|1\\d\\d|2[01]\\d|22[0-3])(?:\\.(?:1?\\d{1,2}|2[0-4]\\d|25[0-5])){2}(?:\\.(?:[1-9]\\d?|1\\d\\d|2[0-4]\\d|25[0-4]))|(((?!www\\.)|(www\\.))(?![-_])(?:[-_a-z0-9\\u00a1-\\uffff]{1,63}\\.)+(?:[a-z\\u00a1-\\uffff]{2,63})))(?::\\d{2,5})?(?:[/?#]\\S*)?)|((www.|(\\S+@))((?![-_])(?:[-_a-z0-9\\u00a1-\\uffff]{1,63}\\.))+(?:[a-z\\u00a1-\\uffff]{2,63})))$","i");class RC extends Pi{static get requires(){return[Wf]}static get pluginName(){return"AutoLink"}init(){const t=this.editor.model.document.selection;t.on("change:range",(()=>{this.isEnabled=!t.anchor.parent.is("element","codeBlock")})),this._enableTypingHandling()}afterInit(){this._enableEnterHandling(),this._enableShiftEnterHandling()}_enableTypingHandling(){const t=this.editor,e=new $f(t.model,(t=>{if(!function(t){return t.length>4&&" "===t[t.length-1]&&" "!==t[t.length-2]}(t))return;const e=zC(t.substr(0,t.length-1));return e?{url:e}:void 0}));e.on("matched:data",((e,n)=>{const{batch:o,range:i,url:r}=n;if(!o.isTyping)return;const s=i.end.getShiftedBy(-1),a=s.getShiftedBy(-r.length),l=t.model.createRange(a,s);this._applyAutoLink(r,l)})),e.bind("isEnabled").to(this)}_enableEnterHandling(){const t=this.editor,e=t.model,n=t.commands.get("enter");n&&n.on("execute",(()=>{const t=e.document.selection.getFirstPosition();if(!t.parent.previousSibling)return;const n=e.createRangeIn(t.parent.previousSibling);this._checkAndApplyAutoLinkOnRange(n)}))}_enableShiftEnterHandling(){const t=this.editor,e=t.model,n=t.commands.get("shiftEnter");n&&n.on("execute",(()=>{const t=e.document.selection.getFirstPosition(),n=e.createRange(e.createPositionAt(t.parent,0),t.getShiftedBy(-1));this._checkAndApplyAutoLinkOnRange(n)}))}_checkAndApplyAutoLinkOnRange(t){const e=this.editor.model,{text:n,range:o}=Uf(t,e),i=zC(n);if(i){const t=e.createRange(o.end.getShiftedBy(-i.length),o.end);this._applyAutoLink(i,t)}}_applyAutoLink(t,e){const n=this.editor.model,o=nC(t,this.editor.config.get("link.defaultProtocol"));this.isEnabled&&function(t,e){return e.schema.checkAttributeInSelection(e.createSelection(t),"linkHref")}(e,n)&&oC(o)&&!function(t){const e=t.start.nodeAfter;return!!e&&e.hasAttribute("linkHref")}(e)&&this._persistAutoLink(o,e)}_persistAutoLink(t,e){const n=this.editor.model,o=this.editor.plugins.get("Delete");n.enqueueChange((i=>{i.setAttribute("linkHref",t,e),n.enqueueChange((()=>{o.requestUndoOnBackspace()}))}))}}function zC(t){const e=PC.exec(t);return e?e[2]:null}class VC extends zi{constructor(t,e){super(t),this.type=e}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){const e=this.editor.model,n=e.document,o=Array.from(n.selection.getSelectedBlocks()).filter((t=>FC(t,e.schema))),i=void 0!==t.forceValue?!t.forceValue:this.value;e.change((t=>{if(i){let e=o[o.length-1].nextSibling,n=Number.POSITIVE_INFINITY,i=[];for(;e&&"listItem"==e.name&&0!==e.getAttribute("listIndent");){const t=e.getAttribute("listIndent");t<n&&(n=t);const o=t-n;i.push({element:e,listIndent:o}),e=e.nextSibling}i=i.reverse();for(const e of i)t.setAttribute("listIndent",e.listIndent,e.element)}if(!i){let t=Number.POSITIVE_INFINITY;for(const e of o)e.is("element","listItem")&&e.getAttribute("listIndent")<t&&(t=e.getAttribute("listIndent"));t=0===t?1:t,OC(o,!0,t),OC(o,!1,t)}for(const e of o.reverse())i&&"listItem"==e.name?t.rename(e,"paragraph"):i||"listItem"==e.name?i||"listItem"!=e.name||e.getAttribute("listType")==this.type||t.setAttribute("listType",this.type,e):(t.setAttributes({listType:this.type,listIndent:0},e),t.rename(e,"listItem"));this.fire("_executeCleanup",o)}))}_getValue(){const t=yi(this.editor.model.document.selection.getSelectedBlocks());return!!t&&t.is("element","listItem")&&t.getAttribute("listType")==this.type}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=yi(t.getSelectedBlocks());return!!n&&FC(n,e)}}function OC(t,e,n){const o=e?t[0]:t[t.length-1];if(o.is("element","listItem")){let i=o[e?"previousSibling":"nextSibling"],r=o.getAttribute("listIndent");for(;i&&i.is("element","listItem")&&i.getAttribute("listIndent")>=n;)r>i.getAttribute("listIndent")&&(r=i.getAttribute("listIndent")),i.getAttribute("listIndent")==r&&t[e?"unshift":"push"](i),i=i[e?"previousSibling":"nextSibling"]}}function FC(t,e){return e.checkChild(t.parent,"listItem")&&!e.isObject(t)}class NC extends zi{constructor(t,e){super(t),this._indentBy="forward"==e?1:-1}refresh(){this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model,e=t.document;let n=Array.from(e.selection.getSelectedBlocks());t.change((t=>{const e=n[n.length-1];let o=e.nextSibling;for(;o&&"listItem"==o.name&&o.getAttribute("listIndent")>e.getAttribute("listIndent");)n.push(o),o=o.nextSibling;this._indentBy<0&&(n=n.reverse());for(const e of n){const n=e.getAttribute("listIndent")+this._indentBy;n<0?t.rename(e,"paragraph"):t.setAttribute("listIndent",n,e)}this.fire("_executeCleanup",n)}))}_checkEnabled(){const t=yi(this.editor.model.document.selection.getSelectedBlocks());if(!t||!t.is("element","listItem"))return!1;if(this._indentBy>0){const e=t.getAttribute("listIndent"),n=t.getAttribute("listType");let o=t.previousSibling;for(;o&&o.is("element","listItem")&&o.getAttribute("listIndent")>=e;){if(o.getAttribute("listIndent")==e)return o.getAttribute("listType")==n;o=o.previousSibling}return!1}return!0}}function MC(t,e){const n=e.mapper,o=e.writer,i="numbered"==t.getAttribute("listType")?"ol":"ul",r=function(t){const e=t.createContainerElement("li");return e.getFillerOffset=YC,e}(o),s=o.createContainerElement(i,null);return o.insert(o.createPositionAt(s,0),r),n.bindElements(t,r),r}function LC(t,e,n,o){const i=e.parent,r=n.mapper,s=n.writer;let a=r.toViewPosition(o.createPositionBefore(t));const l=qC(t.previousSibling,{sameIndent:!0,smallerIndent:!0,listIndent:t.getAttribute("listIndent")}),c=t.previousSibling;if(l&&l.getAttribute("listIndent")==t.getAttribute("listIndent")){const t=r.toViewElement(l);a=s.breakContainer(s.createPositionAfter(t))}else if(c&&"listItem"==c.name){a=r.toViewPosition(o.createPositionAt(c,"end"));const t=r.findMappedViewAncestor(a),e=UC(t);a=e?s.createPositionBefore(e):s.createPositionAt(t,"end")}else a=r.toViewPosition(o.createPositionBefore(t));if(a=jC(a),s.insert(a,i),c&&"listItem"==c.name){const t=r.toViewElement(c),n=s.createRange(s.createPositionAt(t,0),a).getWalker({ignoreElementEnd:!0});for(const t of n)if(t.item.is("element","li")){const o=s.breakContainer(s.createPositionBefore(t.item)),i=t.item.parent,r=s.createPositionAt(e,"end");HC(s,r.nodeBefore,r.nodeAfter),s.move(s.createRangeOn(i),r),n._position=o}}else{const n=i.nextSibling;if(n&&(n.is("element","ul")||n.is("element","ol"))){let o=null;for(const e of n.getChildren()){const n=r.toModelElement(e);if(!(n&&n.getAttribute("listIndent")>t.getAttribute("listIndent")))break;o=e}o&&(s.breakContainer(s.createPositionAfter(o)),s.move(s.createRangeOn(o.parent),s.createPositionAt(e,"end")))}}HC(s,i,i.nextSibling),HC(s,i.previousSibling,i)}function HC(t,e,n){return!e||!n||"ul"!=e.name&&"ol"!=e.name||e.name!=n.name||e.getAttribute("class")!==n.getAttribute("class")?null:t.mergeContainers(t.createPositionAfter(e))}function jC(t){return t.getLastMatchingPosition((t=>t.item.is("uiElement")))}function qC(t,e){const n=!!e.sameIndent,o=!!e.smallerIndent,i=e.listIndent;let r=t;for(;r&&"listItem"==r.name;){const t=r.getAttribute("listIndent");if(n&&i==t||o&&i>t)return r;r="forward"===e.direction?r.nextSibling:r.previousSibling}return null}function WC(t,e,n,o){t.ui.componentFactory.add(e,(i=>{const r=t.commands.get(e),s=new Rg(i);return s.set({label:n,icon:o,tooltip:!0,isToggleable:!0}),s.bind("isOn","isEnabled").to(r,"value","isEnabled"),s.on("execute",(()=>{t.execute(e),t.editing.view.focus()})),s}))}function UC(t){for(const e of t.getChildren())if("ul"==e.name||"ol"==e.name)return e;return null}function $C(t,e){const n=[],o=t.parent,i={ignoreElementEnd:!1,startPosition:t,shallow:!0,direction:e},r=o.getAttribute("listIndent"),s=[...new wl(i)].filter((t=>t.item.is("element"))).map((t=>t.item));for(const t of s){if(!t.is("element","listItem"))break;if(t.getAttribute("listIndent")<r)break;if(!(t.getAttribute("listIndent")>r)){if(t.getAttribute("listType")!==o.getAttribute("listType"))break;if(t.getAttribute("listStyle")!==o.getAttribute("listStyle"))break;if(t.getAttribute("listReversed")!==o.getAttribute("listReversed"))break;if(t.getAttribute("listStart")!==o.getAttribute("listStart"))break;"backward"===e?n.unshift(t):n.push(t)}}return n}function GC(t){let e=[...t.document.selection.getSelectedBlocks()].filter((t=>t.is("element","listItem"))).map((e=>{const n=t.change((t=>t.createPositionAt(e,0)));return[...$C(n,"backward"),...$C(n,"forward")]})).flat();return e=[...new Set(e)],e}const KC=["disc","circle","square"],ZC=["decimal","decimal-leading-zero","lower-roman","upper-roman","lower-latin","upper-latin"];function JC(t){return KC.includes(t)?"bulleted":ZC.includes(t)?"numbered":null}function YC(){const t=!this.isEmpty&&("ul"==this.getChild(0).name||"ol"==this.getChild(0).name);return this.isEmpty||t?0:is.call(this)}class QC extends Pi{static get pluginName(){return"ListUtils"}getListTypeFromListStyleType(t){return JC(t)}getSelectedListItems(t){return GC(t)}getSiblingNodes(t,e){return $C(t,e)}}function XC(t){return(e,n,o)=>{const i=o.consumable;if(!i.test(n.item,"insert")||!i.test(n.item,"attribute:listType")||!i.test(n.item,"attribute:listIndent"))return;i.consume(n.item,"insert"),i.consume(n.item,"attribute:listType"),i.consume(n.item,"attribute:listIndent");const r=n.item;LC(r,MC(r,o),o,t)}}const tv=(t,e,n)=>{if(!n.consumable.test(e.item,t.name))return;const o=n.mapper.toViewElement(e.item),i=n.writer;i.breakContainer(i.createPositionBefore(o)),i.breakContainer(i.createPositionAfter(o));const r=o.parent,s="numbered"==e.attributeNewValue?"ol":"ul";i.rename(s,r)},ev=(t,e,n)=>{n.consumable.consume(e.item,t.name);const o=n.mapper.toViewElement(e.item).parent,i=n.writer;HC(i,o,o.nextSibling),HC(i,o.previousSibling,o)};const nv=(t,e,n)=>{if(n.consumable.test(e.item,t.name)&&"listItem"!=e.item.name){let t=n.mapper.toViewPosition(e.range.start);const o=n.writer,i=[];for(;("ul"==t.parent.name||"ol"==t.parent.name)&&(t=o.breakContainer(t),"li"==t.parent.name);){const e=t,n=o.createPositionAt(t.parent,"end");if(!e.isEqual(n)){const t=o.remove(o.createRange(e,n));i.push(t)}t=o.createPositionAfter(t.parent)}if(i.length>0){for(let e=0;e<i.length;e++){const n=t.nodeBefore;if(t=o.insert(t,i[e]).end,e>0){const e=HC(o,n,n.nextSibling);e&&e.parent==n&&t.offset--}}HC(o,t.nodeBefore,t.nodeAfter)}}},ov=(t,e,n)=>{const o=n.mapper.toViewPosition(e.position),i=o.nodeBefore,r=o.nodeAfter;HC(n.writer,i,r)},iv=(t,e,n)=>{if(n.consumable.consume(e.viewItem,{name:!0})){const t=n.writer,o=t.createElement("listItem"),i=function(t){let e=0,n=t.parent;for(;n;){if(n.is("element","li"))e++;else{const t=n.previousSibling;t&&t.is("element","li")&&e++}n=n.parent}return e}(e.viewItem);t.setAttribute("listIndent",i,o);const r=e.viewItem.parent&&"ol"==e.viewItem.parent.name?"numbered":"bulleted";if(t.setAttribute("listType",r,o),!n.safeInsert(o,e.modelCursor))return;const s=function(t,e,n){const{writer:o,schema:i}=n;let r=o.createPositionAfter(t);for(const s of e)if("ul"==s.name||"ol"==s.name)r=n.convertItem(s,r).modelCursor;else{const e=n.convertItem(s,o.createPositionAt(t,"end")),a=e.modelRange.start.nodeAfter;a&&a.is("element")&&!i.checkChild(t,a.name)&&(t=e.modelCursor.parent.is("element","listItem")?e.modelCursor.parent:cv(e.modelCursor),r=o.createPositionAfter(t))}return r}(o,e.viewItem.getChildren(),n);e.modelRange=t.createRange(e.modelCursor,s),n.updateConversionResult(o,e)}},rv=(t,e,n)=>{if(n.consumable.test(e.viewItem,{name:!0})){const t=Array.from(e.viewItem.getChildren());for(const e of t){!(e.is("element","li")||hv(e))&&e._remove()}}},sv=(t,e,n)=>{if(n.consumable.test(e.viewItem,{name:!0})){if(0===e.viewItem.childCount)return;const t=[...e.viewItem.getChildren()];let n=!1;for(const e of t)n&&!hv(e)&&e._remove(),hv(e)&&(n=!0)}};function av(t){return(e,n)=>{if(n.isPhantom)return;const o=n.modelPosition.nodeBefore;if(o&&o.is("element","listItem")){const e=n.mapper.toViewElement(o),i=e.getAncestors().find(hv),r=t.createPositionAt(e,0).getWalker();for(const t of r){if("elementStart"==t.type&&t.item.is("element","li")){n.viewPosition=t.previousPosition;break}if("elementEnd"==t.type&&t.item==i){n.viewPosition=t.nextPosition;break}}}}}const lv=function(t,[e,n]){const o=this;let i,r=e.is("documentFragment")?e.getChild(0):e;if(i=n?o.createSelection(n):o.document.selection,r&&r.is("element","listItem")){const t=i.getFirstPosition();let e=null;if(t.parent.is("element","listItem")?e=t.parent:t.nodeBefore&&t.nodeBefore.is("element","listItem")&&(e=t.nodeBefore),e){const t=e.getAttribute("listIndent");if(t>0)for(;r&&r.is("element","listItem");)r._setAttribute("listIndent",r.getAttribute("listIndent")+t),r=r.nextSibling}}};function cv(t){const e=new wl({startPosition:t});let n;do{n=e.next()}while(!n.value.item.is("element","listItem"));return n.value.item}function dv(t,e,n,o,i,r){const s=qC(e.nodeBefore,{sameIndent:!0,smallerIndent:!0,listIndent:t}),a=i.mapper,l=i.writer,c=s?s.getAttribute("listIndent"):null;let d;if(s)if(c==t){const t=a.toViewElement(s).parent;d=l.createPositionAfter(t)}else{const t=r.createPositionAt(s,"end");d=a.toViewPosition(t)}else d=n;d=jC(d);for(const t of[...o.getChildren()])hv(t)&&(d=l.move(l.createRangeOn(t),d).end,HC(l,t,t.nextSibling),HC(l,t.previousSibling,t))}function hv(t){return t.is("element","ol")||t.is("element","ul")}var uv=n(4564),gv={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(uv.Z,gv);uv.Z.locals;class mv extends Pi{static get pluginName(){return"ListEditing"}static get requires(){return[Kb,Wf,QC]}init(){const t=this.editor;t.model.schema.register("listItem",{inheritAllFrom:"$block",allowAttributes:["listType","listIndent"]});const e=t.data,n=t.editing;var o;t.model.document.registerPostFixer((e=>function(t,e){const n=t.document.differ.getChanges(),o=new Map;let i=!1;for(const o of n)if("insert"==o.type&&"listItem"==o.name)r(o.position);else if("insert"==o.type&&"listItem"!=o.name){if("$text"!=o.name){const n=o.position.nodeAfter;n.hasAttribute("listIndent")&&(e.removeAttribute("listIndent",n),i=!0),n.hasAttribute("listType")&&(e.removeAttribute("listType",n),i=!0),n.hasAttribute("listStyle")&&(e.removeAttribute("listStyle",n),i=!0),n.hasAttribute("listReversed")&&(e.removeAttribute("listReversed",n),i=!0),n.hasAttribute("listStart")&&(e.removeAttribute("listStart",n),i=!0);for(const e of Array.from(t.createRangeIn(n)).filter((t=>t.item.is("element","listItem"))))r(e.previousPosition)}r(o.position.getShiftedBy(o.length))}else"remove"==o.type&&"listItem"==o.name?r(o.position):("attribute"==o.type&&"listIndent"==o.attributeKey||"attribute"==o.type&&"listType"==o.attributeKey)&&r(o.range.start);for(const t of o.values())s(t),a(t);return i;function r(t){const e=t.nodeBefore;if(e&&e.is("element","listItem")){let t=e;if(o.has(t))return;for(let e=t.previousSibling;e&&e.is("element","listItem");e=t.previousSibling)if(t=e,o.has(t))return;o.set(e,t)}else{const e=t.nodeAfter;e&&e.is("element","listItem")&&o.set(e,e)}}function s(t){let n=0,o=null;for(;t&&t.is("element","listItem");){const r=t.getAttribute("listIndent");if(r>n){let s;null===o?(o=r-n,s=n):(o>r&&(o=r),s=r-o),e.setAttribute("listIndent",s,t),i=!0}else o=null,n=t.getAttribute("listIndent")+1;t=t.nextSibling}}function a(t){let n=[],o=null;for(;t&&t.is("element","listItem");){const r=t.getAttribute("listIndent");if(o&&o.getAttribute("listIndent")>r&&(n=n.slice(0,r+1)),0!=r)if(n[r]){const o=n[r];t.getAttribute("listType")!=o&&(e.setAttribute("listType",o,t),i=!0)}else n[r]=t.getAttribute("listType");o=t,t=t.nextSibling}}}(t.model,e))),n.mapper.registerViewToModelLength("li",pv),e.mapper.registerViewToModelLength("li",pv),n.mapper.on("modelToViewPosition",av(n.view)),n.mapper.on("viewToModelPosition",(o=t.model,(t,e)=>{const n=e.viewPosition,i=n.parent,r=e.mapper;if("ul"==i.name||"ol"==i.name){if(n.isAtEnd){const t=r.toModelElement(n.nodeBefore),i=r.getModelLength(n.nodeBefore);e.modelPosition=o.createPositionBefore(t).getShiftedBy(i)}else{const t=r.toModelElement(n.nodeAfter);e.modelPosition=o.createPositionBefore(t)}t.stop()}else if("li"==i.name&&n.nodeBefore&&("ul"==n.nodeBefore.name||"ol"==n.nodeBefore.name)){const s=r.toModelElement(i);let a=1,l=n.nodeBefore;for(;l&&hv(l);)a+=r.getModelLength(l),l=l.previousSibling;e.modelPosition=o.createPositionBefore(s).getShiftedBy(a),t.stop()}})),e.mapper.on("modelToViewPosition",av(n.view)),t.conversion.for("editingDowncast").add((e=>{e.on("insert",nv,{priority:"high"}),e.on("insert:listItem",XC(t.model)),e.on("attribute:listType:listItem",tv,{priority:"high"}),e.on("attribute:listType:listItem",ev,{priority:"low"}),e.on("attribute:listIndent:listItem",function(t){return(e,n,o)=>{if(!o.consumable.consume(n.item,"attribute:listIndent"))return;const i=o.mapper.toViewElement(n.item),r=o.writer;r.breakContainer(r.createPositionBefore(i)),r.breakContainer(r.createPositionAfter(i));const s=i.parent,a=s.previousSibling,l=r.createRangeOn(s);r.remove(l),a&&a.nextSibling&&HC(r,a,a.nextSibling),dv(n.attributeOldValue+1,n.range.start,l.start,i,o,t),LC(n.item,i,o,t);for(const t of n.item.getChildren())o.consumable.consume(t,"insert")}}(t.model)),e.on("remove:listItem",function(t){return(e,n,o)=>{const i=o.mapper.toViewPosition(n.position).getLastMatchingPosition((t=>!t.item.is("element","li"))).nodeAfter,r=o.writer;r.breakContainer(r.createPositionBefore(i)),r.breakContainer(r.createPositionAfter(i));const s=i.parent,a=s.previousSibling,l=r.createRangeOn(s),c=r.remove(l);a&&a.nextSibling&&HC(r,a,a.nextSibling),dv(o.mapper.toModelElement(i).getAttribute("listIndent")+1,n.position,l.start,i,o,t);for(const t of r.createRangeIn(c).getItems())o.mapper.unbindViewElement(t);e.stop()}}(t.model)),e.on("remove",ov,{priority:"low"})})),t.conversion.for("dataDowncast").add((e=>{e.on("insert",nv,{priority:"high"}),e.on("insert:listItem",XC(t.model))})),t.conversion.for("upcast").add((t=>{t.on("element:ul",rv,{priority:"high"}),t.on("element:ol",rv,{priority:"high"}),t.on("element:li",sv,{priority:"high"}),t.on("element:li",iv)})),t.model.on("insertContent",lv,{priority:"high"}),t.commands.add("numberedList",new VC(t,"numbered")),t.commands.add("bulletedList",new VC(t,"bulleted")),t.commands.add("indentList",new NC(t,"forward")),t.commands.add("outdentList",new NC(t,"backward"));const i=n.view.document;this.listenTo(i,"enter",((t,e)=>{const n=this.editor.model.document,o=n.selection.getLastPosition().parent;n.selection.isCollapsed&&"listItem"==o.name&&o.isEmpty&&(this.editor.execute("outdentList"),e.preventDefault(),t.stop())}),{context:"li"}),this.listenTo(i,"delete",((t,e)=>{if("backward"!==e.direction)return;const n=this.editor.model.document.selection;if(!n.isCollapsed)return;const o=n.getFirstPosition();if(!o.isAtStart)return;const i=o.parent;if("listItem"!==i.name)return;i.previousSibling&&"listItem"===i.previousSibling.name||(this.editor.execute("outdentList"),e.preventDefault(),t.stop())}),{context:"li"}),this.listenTo(t.editing.view.document,"tab",((e,n)=>{const o=n.shiftKey?"outdentList":"indentList";this.editor.commands.get(o).isEnabled&&(t.execute(o),n.stopPropagation(),n.preventDefault(),e.stop())}),{context:"li"})}afterInit(){const t=this.editor.commands,e=t.get("indent"),n=t.get("outdent");e&&e.registerChildCommand(t.get("indentList")),n&&n.registerChildCommand(t.get("outdentList"))}}function pv(t){let e=1;for(const n of t.getChildren())if("ul"==n.name||"ol"==n.name)for(const t of n.getChildren())e+=pv(t);return e}const fv='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM3.5 3v5H2V3.7H1v-1h2.5V3zM.343 17.857l2.59-3.257H2.92a.6.6 0 1 0-1.04 0H.302a2 2 0 1 1 3.995 0h-.001c-.048.405-.16.734-.333.988-.175.254-.59.692-1.244 1.312H4.3v1h-4l.043-.043zM7 14.75a.75.75 0 0 1 .75-.75h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75z"/></svg>',bv='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0C1 4.784 1.777 4 2.75 4c.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75C1.784 7.5 1 6.723 1 5.75zm6 9c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0c0-.966.777-1.75 1.75-1.75.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75-.966 0-1.75-.777-1.75-1.75z"/></svg>';class kv extends Pi{static get pluginName(){return"ListUI"}init(){const t=this.editor.t;WC(this.editor,"numberedList",t("Numbered List"),fv),WC(this.editor,"bulletedList",t("Bulleted List"),bv)}}class wv extends zi{constructor(t,e){super(t),this.defaultType=e}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){this._tryToConvertItemsToList(t);const e=this.editor.model,n=GC(e);n.length&&e.change((e=>{for(const o of n)e.setAttribute("listStyle",t.type||this.defaultType,o)}))}_getValue(){const t=this.editor.model.document.selection.getFirstPosition().parent;return t&&t.is("element","listItem")?t.getAttribute("listStyle"):null}_checkEnabled(){const t=this.editor,e=t.commands.get("numberedList"),n=t.commands.get("bulletedList");return e.isEnabled||n.isEnabled}_tryToConvertItemsToList(t){if(!t.type)return;const e=JC(t.type);if(!e)return;const n=this.editor,o=`${e}List`;n.commands.get(o).value||n.execute(o)}}class _v extends zi{refresh(){const t=this._getValue();this.value=t,this.isEnabled=null!=t}execute(t={}){const e=this.editor.model,n=GC(e).filter((t=>"numbered"==t.getAttribute("listType")));e.change((e=>{for(const o of n)e.setAttribute("listReversed",!!t.reversed,o)}))}_getValue(){const t=this.editor.model.document.selection.getFirstPosition().parent;return t&&t.is("element","listItem")&&"numbered"==t.getAttribute("listType")?t.getAttribute("listReversed"):null}}class Av extends zi{refresh(){const t=this._getValue();this.value=t,this.isEnabled=null!=t}execute({startIndex:t=1}={}){const e=this.editor.model,n=GC(e).filter((t=>"numbered"==t.getAttribute("listType")));e.change((e=>{for(const o of n)e.setAttribute("listStart",t>=0?t:1,o)}))}_getValue(){const t=this.editor.model.document.selection.getFirstPosition().parent;return t&&t.is("element","listItem")&&"numbered"==t.getAttribute("listType")?t.getAttribute("listStart"):null}}const Cv="default";class vv extends Pi{static get requires(){return[mv]}static get pluginName(){return"ListPropertiesEditing"}constructor(t){super(t),t.config.define("list",{properties:{styles:!0,startIndex:!1,reversed:!1}})}init(){const t=this.editor,e=t.model,n=function(t){const e=[];t.styles&&e.push({attributeName:"listStyle",defaultValue:Cv,addCommand(t){t.commands.add("listStyle",new wv(t,Cv))},appliesToListItem:()=>!0,setAttributeOnDowncast(t,e,n){e&&e!==Cv?t.setStyle("list-style-type",e,n):t.removeStyle("list-style-type",n)},getAttributeOnUpcast:t=>t.getStyle("list-style-type")||Cv});t.reversed&&e.push({attributeName:"listReversed",defaultValue:!1,addCommand(t){t.commands.add("listReversed",new _v(t))},appliesToListItem:t=>"numbered"==t.getAttribute("listType"),setAttributeOnDowncast(t,e,n){e?t.setAttribute("reversed","reversed",n):t.removeAttribute("reversed",n)},getAttributeOnUpcast:t=>t.hasAttribute("reversed")});t.startIndex&&e.push({attributeName:"listStart",defaultValue:1,addCommand(t){t.commands.add("listStart",new Av(t))},appliesToListItem:t=>"numbered"==t.getAttribute("listType"),setAttributeOnDowncast(t,e,n){0==e||e>1?t.setAttribute("start",e,n):t.removeAttribute("start",n)},getAttributeOnUpcast(t){const e=t.getAttribute("start");return e>=0?e:1}});return e}(t.config.get("list.properties"));e.schema.extend("listItem",{allowAttributes:n.map((t=>t.attributeName))});for(const e of n)e.addCommand(t);var o;this.listenTo(t.commands.get("indentList"),"_executeCleanup",function(t,e){return(n,o)=>{const i=o[0],r=i.getAttribute("listIndent"),s=o.filter((t=>t.getAttribute("listIndent")===r));let a=null;i.previousSibling.getAttribute("listIndent")+1!==r&&(a=qC(i.previousSibling,{sameIndent:!0,direction:"backward",listIndent:r})),t.model.change((t=>{for(const n of s)for(const o of e)if(o.appliesToListItem(n)){const e=null==a?o.defaultValue:a.getAttribute(o.attributeName);t.setAttribute(o.attributeName,e,n)}}))}}(t,n)),this.listenTo(t.commands.get("outdentList"),"_executeCleanup",function(t,e){return(n,o)=>{if(!(o=o.reverse().filter((t=>t.is("element","listItem")))).length)return;const i=o[0].getAttribute("listIndent"),r=o[0].getAttribute("listType");let s=o[0].previousSibling;if(s.is("element","listItem"))for(;s.getAttribute("listIndent")!==i;)s=s.previousSibling;else s=null;s||(s=o[o.length-1].nextSibling),s&&s.is("element","listItem")&&s.getAttribute("listType")===r&&t.model.change((t=>{const n=o.filter((t=>t.getAttribute("listIndent")===i));for(const o of n)for(const n of e)if(n.appliesToListItem(o)){const e=n.attributeName,i=s.getAttribute(e);t.setAttribute(e,i,o)}}))}}(t,n)),this.listenTo(t.commands.get("bulletedList"),"_executeCleanup",Ev(t)),this.listenTo(t.commands.get("numberedList"),"_executeCleanup",Ev(t)),e.document.registerPostFixer(function(t,e){return n=>{let o=!1;const i=Tv(t.model.document.differ.getChanges()).filter((t=>"todo"!==t.getAttribute("listType")));if(!i.length)return o;let r=i[i.length-1].nextSibling;if((!r||!r.is("element","listItem"))&&(r=i[0].previousSibling,r)){const t=i[0].getAttribute("listIndent");for(;r.is("element","listItem")&&r.getAttribute("listIndent")!==t&&(r=r.previousSibling,r););}for(const t of e){const e=t.attributeName;for(const s of i)if(t.appliesToListItem(s))if(s.hasAttribute(e)){const i=s.previousSibling;xv(i,s,t.attributeName)&&(n.setAttribute(e,i.getAttribute(e),s),o=!0)}else yv(r,s,t)?n.setAttribute(e,r.getAttribute(e),s):n.setAttribute(e,t.defaultValue,s),o=!0;else n.removeAttribute(e,s)}return o}}(t,n)),t.conversion.for("upcast").add((o=n,t=>{t.on("element:li",((t,e,n)=>{if(!e.modelRange)return;const i=e.viewItem.parent,r=e.modelRange.start.nodeAfter||e.modelRange.end.nodeBefore;for(const t of o)if(t.appliesToListItem(r)){const e=t.getAttributeOnUpcast(i);n.writer.setAttribute(t.attributeName,e,r)}}),{priority:"low"})})),t.conversion.for("downcast").add(function(t){return n=>{for(const o of t)n.on(`attribute:${o.attributeName}:listItem`,((t,n,i)=>{const r=i.writer,s=n.item,a=qC(s.previousSibling,{sameIndent:!0,listIndent:s.getAttribute("listIndent"),direction:"backward"}),l=i.mapper.toViewElement(s);e(s,a)||r.breakContainer(r.createPositionBefore(l)),o.setAttributeOnDowncast(r,n.attributeNewValue,l.parent)}),{priority:"low"})};function e(t,e){return e&&t.getAttribute("listType")===e.getAttribute("listType")&&t.getAttribute("listIndent")===e.getAttribute("listIndent")&&t.getAttribute("listStyle")===e.getAttribute("listStyle")&&t.getAttribute("listReversed")===e.getAttribute("listReversed")&&t.getAttribute("listStart")===e.getAttribute("listStart")}}(n)),this._mergeListAttributesWhileMergingLists(n)}afterInit(){const t=this.editor;t.commands.get("todoList")&&t.model.document.registerPostFixer(function(t){return e=>{const n=Tv(t.model.document.differ.getChanges()).filter((t=>"todo"===t.getAttribute("listType")&&(t.hasAttribute("listStyle")||t.hasAttribute("listReversed")||t.hasAttribute("listStart"))));if(!n.length)return!1;for(const t of n)e.removeAttribute("listStyle",t),e.removeAttribute("listReversed",t),e.removeAttribute("listStart",t);return!0}}(t))}_mergeListAttributesWhileMergingLists(t){const e=this.editor.model;let n;this.listenTo(e,"deleteContent",((t,[e])=>{const o=e.getFirstPosition(),i=e.getLastPosition();if(o.parent===i.parent)return;if(!o.parent.is("element","listItem"))return;const r=i.parent.nextSibling;if(!r||!r.is("element","listItem"))return;const s=qC(o.parent,{sameIndent:!0,listIndent:r.getAttribute("listIndent")});s&&s.getAttribute("listType")===r.getAttribute("listType")&&(n=s)}),{priority:"high"}),this.listenTo(e,"deleteContent",(()=>{n&&(e.change((e=>{const o=qC(n.nextSibling,{sameIndent:!0,listIndent:n.getAttribute("listIndent"),direction:"forward"});if(!o)return void(n=null);const i=[o,...$C(e.createPositionAt(o,0),"forward")];for(const o of i)for(const i of t)if(i.appliesToListItem(o)){const t=i.attributeName,r=n.getAttribute(t);e.setAttribute(t,r,o)}})),n=null)}),{priority:"low"})}}function yv(t,e,n){if(!t)return!1;const o=t.getAttribute(n.attributeName);return!!o&&(o!=n.defaultValue&&t.getAttribute("listType")===e.getAttribute("listType"))}function xv(t,e,n){if(!t||!t.is("element","listItem"))return!1;if(e.getAttribute("listType")!==t.getAttribute("listType"))return!1;const o=t.getAttribute("listIndent");if(o<1||o!==e.getAttribute("listIndent"))return!1;const i=t.getAttribute(n);return!(!i||i===e.getAttribute(n))}function Ev(t){return(e,n)=>{n=n.filter((t=>t.is("element","listItem"))),t.model.change((t=>{for(const e of n)t.removeAttribute("listStyle",e)}))}}function Tv(t){const e=[];for(const n of t){const t=Dv(n);t&&t.is("element","listItem")&&e.push(t)}return e}function Dv(t){return"attribute"===t.type?t.range.start.nodeAfter:"insert"===t.type?t.position.nodeAfter:null}var Sv=n(4721),Bv={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Sv.Z,Bv);Sv.Z.locals;class Iv extends ig{constructor(t,e){super(t);const n=this.bindTemplate;this.set("isCollapsed",!1),this.set("label",""),this.buttonView=this._createButtonView(),this.children=this.createCollection(),this.set("_collapsibleAriaLabelUid",void 0),e&&this.children.addMany(e),this.setTemplate({tag:"div",attributes:{class:["ck","ck-collapsible",n.if("isCollapsed","ck-collapsible_collapsed")]},children:[this.buttonView,{tag:"div",attributes:{class:["ck","ck-collapsible__children"],role:"region",hidden:n.if("isCollapsed","hidden"),"aria-labelledby":n.to("_collapsibleAriaLabelUid")},children:this.children}]})}render(){super.render(),this._collapsibleAriaLabelUid=this.buttonView.labelView.element.id}_createButtonView(){const t=new Rg(this.locale),e=t.bindTemplate;return t.set({withText:!0,icon:Yg}),t.extendTemplate({attributes:{"aria-expanded":e.to("isOn",(t=>String(t)))}}),t.bind("label").to(this),t.bind("isOn").to(this,"isCollapsed",(t=>!t)),t.on("execute",(()=>{this.isCollapsed=!this.isCollapsed})),t}}var Pv=n(6082),Rv={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Pv.Z,Rv);Pv.Z.locals;class zv extends ig{constructor(t,{enabledProperties:e,styleButtonViews:n,styleGridAriaLabel:o}){super(t),this.stylesView=null,this.additionalPropertiesCollapsibleView=null,this.startIndexFieldView=null,this.reversedSwitchButtonView=null,this.focusTracker=new xi,this.keystrokes=new Ei,this.focusables=new eg;const i=["ck","ck-list-properties"];this.children=this.createCollection(),this.focusCycler=new nm({focusables:this.focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),e.styles?(this.stylesView=this._createStylesView(n,o),this.children.add(this.stylesView)):i.push("ck-list-properties_without-styles"),(e.startIndex||e.reversed)&&(this._addNumberedListPropertyViews(e),i.push("ck-list-properties_with-numbered-properties")),this.setTemplate({tag:"div",attributes:{class:i},children:this.children})}render(){if(super.render(),this.stylesView){this.focusables.add(this.stylesView),this.focusTracker.add(this.stylesView.element),(this.startIndexFieldView||this.reversedSwitchButtonView)&&(this.focusables.add(this.children.last.buttonView),this.focusTracker.add(this.children.last.buttonView.element));for(const t of this.stylesView.children)this.stylesView.focusTracker.add(t.element);tg({keystrokeHandler:this.stylesView.keystrokes,focusTracker:this.stylesView.focusTracker,gridItems:this.stylesView.children,numberOfColumns:()=>Io.window.getComputedStyle(this.stylesView.element).getPropertyValue("grid-template-columns").split(" ").length,uiLanguageDirection:this.locale&&this.locale.uiLanguageDirection})}if(this.startIndexFieldView){this.focusables.add(this.startIndexFieldView),this.focusTracker.add(this.startIndexFieldView.element),this.listenTo(this.startIndexFieldView.element,"selectstart",((t,e)=>{e.stopPropagation()}),{priority:"high"});const t=t=>t.stopPropagation();this.keystrokes.set("arrowright",t),this.keystrokes.set("arrowleft",t),this.keystrokes.set("arrowup",t),this.keystrokes.set("arrowdown",t)}this.reversedSwitchButtonView&&(this.focusables.add(this.reversedSwitchButtonView),this.focusTracker.add(this.reversedSwitchButtonView.element)),this.keystrokes.listenTo(this.element)}focus(){this.focusCycler.focusFirst()}focusLast(){this.focusCycler.focusLast()}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}_createStylesView(t,e){const n=new ig(this.locale);return n.children=n.createCollection(),n.children.addMany(t),n.setTemplate({tag:"div",attributes:{"aria-label":e,class:["ck","ck-list-styles-list"]},children:n.children}),n.children.delegate("execute").to(this),n.focus=function(){this.children.first.focus()},n.focusTracker=new xi,n.keystrokes=new Ei,n.render(),n.keystrokes.listenTo(n.element),n}_addNumberedListPropertyViews(t){const e=this.locale.t,n=[];t.startIndex&&(this.startIndexFieldView=this._createStartIndexField(),n.push(this.startIndexFieldView)),t.reversed&&(this.reversedSwitchButtonView=this._createReversedSwitchButton(),n.push(this.reversedSwitchButtonView)),t.styles?(this.additionalPropertiesCollapsibleView=new Iv(this.locale,n),this.additionalPropertiesCollapsibleView.set({label:e("List properties"),isCollapsed:!0}),this.additionalPropertiesCollapsibleView.buttonView.bind("isEnabled").toMany(n,"isEnabled",((...t)=>t.some((t=>t)))),this.additionalPropertiesCollapsibleView.buttonView.on("change:isEnabled",((t,e,n)=>{n||(this.additionalPropertiesCollapsibleView.isCollapsed=!0)})),this.children.add(this.additionalPropertiesCollapsibleView)):this.children.addMany(n)}_createStartIndexField(){const t=this.locale.t,e=new fp(this.locale,kp);return e.set({label:t("Start at"),class:"ck-numbered-list-properties__start-index"}),e.fieldView.set({min:0,step:1,value:1,inputMode:"numeric"}),e.fieldView.on("input",(()=>{const n=e.fieldView.element,o=n.valueAsNumber;Number.isNaN(o)||(n.checkValidity()?this.fire("listStart",{startIndex:o}):e.errorText=t("Start index must be greater than 0."))})),e}_createReversedSwitchButton(){const t=this.locale.t,e=new Og(this.locale);return e.set({withText:!0,label:t("Reversed order"),class:"ck-numbered-list-properties__reversed-order"}),e.delegate("execute").to(this,"listReversed"),e}}var Vv=n(2417),Ov={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Vv.Z,Ov);Vv.Z.locals;class Fv extends Pi{static get pluginName(){return"ListPropertiesUI"}init(){const t=this.editor,e=t.locale.t,n=t.config.get("list.properties");n.styles&&t.ui.componentFactory.add("bulletedList",Nv({editor:t,parentCommandName:"bulletedList",buttonLabel:e("Bulleted List"),buttonIcon:bv,styleGridAriaLabel:e("Bulleted list styles toolbar"),styleDefinitions:[{label:e("Toggle the disc list style"),tooltip:e("Disc"),type:"disc",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z" fill-opacity=".163"/><path d="M11 27a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6z"/></svg>'},{label:e("Toggle the circle list style"),tooltip:e("Circle"),type:"circle",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z" fill-opacity=".163"/><path d="M11 27a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4zm0-10a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4zm0-10a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4z"/></svg>'},{label:e("Toggle the square list style"),tooltip:e("Square"),type:"square",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z" fill-opacity=".163"/><path d="M14 27v6H8v-6h6zm0-9v6H8v-6h6zm0-9v6H8V9h6z"/></svg>'}]})),(n.styles||n.startIndex||n.reversed)&&t.ui.componentFactory.add("numberedList",Nv({editor:t,parentCommandName:"numberedList",buttonLabel:e("Numbered List"),buttonIcon:fv,styleGridAriaLabel:e("Numbered list styles toolbar"),styleDefinitions:[{label:e("Toggle the decimal list style"),tooltip:e("Decimal"),type:"decimal",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z" fill-opacity=".163"/><path d="M10.29 15V8.531H9.286c-.14.393-.4.736-.778 1.03-.378.295-.728.495-1.05.6v1.121a4.257 4.257 0 0 0 1.595-.936V15h1.235zm3.343 0v-1.235h-1.235V15h1.235zM11.3 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xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z" fill-opacity=".163"/><path d="M11.88 8.7V7.558h-1.234V8.7h1.234zm0 5.3V9.333h-1.234V14h1.234zm2.5 0v-1.235h-1.234V14h1.235zm-4.75 4.7v-1.142H8.395V18.7H9.63zm0 5.3v-4.667H8.395V24H9.63zm2.5-5.3v-1.142h-1.234V18.7h1.235zm0 5.3v-4.667h-1.234V24h1.235zm2.501 0v-1.235h-1.235V24h1.235zM7.38 28.7v-1.142H6.145V28.7H7.38zm0 5.3v-4.667H6.145V34H7.38zm2.5-5.3v-1.142H8.646V28.7H9.88zm0 5.3v-4.667H8.646V34H9.88zm2.5-5.3v-1.142h-1.234V28.7h1.235zm0 5.3v-4.667h-1.234V34h1.235zm2.501 0v-1.235h-1.235V34h1.235z"/></svg>'},{label:e("Toggle the upper–roman list style"),tooltip:e("Upper-roman"),type:"upper-roman",icon:'<svg viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg"><path d="M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 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n=function({editor:t,dropdownView:e,parentCommandName:n,styleDefinitions:o,styleGridAriaLabel:i}){const r=t.locale,s=t.config.get("list.properties");let a=null;"numberedList"!=n&&(s.startIndex=!1,s.reversed=!1);if(s.styles){const e=t.commands.get("listStyle"),i=function({editor:t,listStyleCommand:e,parentCommandName:n}){const o=t.locale,i=t.commands.get(n);return({label:n,type:r,icon:s,tooltip:a})=>{const l=new Rg(o);return l.set({label:n,icon:s,tooltip:a}),e.on("change:value",(()=>{l.isOn=e.value===r})),l.on("execute",(()=>{i.value?e.value!==r?t.execute("listStyle",{type:r}):t.execute("listStyle",{type:e.defaultType}):t.model.change((()=>{t.execute("listStyle",{type:r})}))})),l}}({editor:t,parentCommandName:n,listStyleCommand:e}),r="function"==typeof e.isStyleTypeSupported?t=>e.isStyleTypeSupported(t.type):()=>!0;a=o.filter(r).map(i)}const l=new 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0===t.headingColumns&&r&&(t.headingColumns=r),n.change((e=>{const i=o.createTable(e,t);n.insertObject(i,null,null,{findOptimalPosition:"auto"}),e.setSelection(e.createPositionAt(i.getNodeByPath([0,0,0]),0))}))}}class Oy extends zi{constructor(t,e={}){super(t),this.order=e.order||"below"}refresh(){const t=this.editor.model.document.selection,e=!!this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(t).length;this.isEnabled=e}execute(){const t=this.editor,e=t.model.document.selection,n=t.plugins.get("TableUtils"),o="above"===this.order,i=n.getSelectionAffectedTableCells(e),r=n.getRowIndexes(i),s=o?r.first:r.last,a=i[0].findAncestor("table");n.insertRows(a,{at:o?s:s+1,copyStructureFromAbove:!o})}}class Fy extends zi{constructor(t,e={}){super(t),this.order=e.order||"right"}refresh(){const t=this.editor.model.document.selection,e=!!this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(t).length;this.isEnabled=e}execute(){const t=this.editor,e=t.model.document.selection,n=t.plugins.get("TableUtils"),o="left"===this.order,i=n.getSelectionAffectedTableCells(e),r=n.getColumnIndexes(i),s=o?r.first:r.last,a=i[0].findAncestor("table");n.insertColumns(a,{columns:1,at:o?s:s+1})}}class Ny extends zi{constructor(t,e={}){super(t),this.direction=e.direction||"horizontally"}refresh(){const t=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(this.editor.model.document.selection);this.isEnabled=1===t.length}execute(){const t=this.editor.plugins.get("TableUtils"),e=t.getSelectionAffectedTableCells(this.editor.model.document.selection)[0];"horizontally"===this.direction?t.splitCellHorizontally(e,2):t.splitCellVertically(e,2)}}function My(t,e,n){const{startRow:o,startColumn:i,endRow:r,endColumn:s}=e,a=n.createElement("table"),l=r-o+1;for(let t=0;t<l;t++)n.insertElement("tableRow",a,"end");const c=[...new Sy(t,{startRow:o,endRow:r,startColumn:i,endColumn:s,includeAllSlots:!0})];for(const{row:t,column:e,cell:l,isAnchor:d,cellAnchorRow:h,cellAnchorColumn:u}of c){const c=t-o,g=a.getChild(c);if(d){const o=n.cloneElement(l);n.append(o,g),Wy(o,t,e,r,s,n)}else(h<o||u<i)&&vy(n,n.createPositionAt(g,"end"))}return function(t,e,n,o,i){const r=parseInt(e.getAttribute("headingRows")||"0");if(r>0){Cy("headingRows",r-n,t,i,0)}const s=parseInt(e.getAttribute("headingColumns")||"0");if(s>0){Cy("headingColumns",s-o,t,i,0)}}(a,t,o,i,n),a}function Ly(t,e,n=0){const o=[],i=new Sy(t,{startRow:n,endRow:e-1});for(const t of i){const{row:n,cellHeight:i}=t;n<e&&e<=n+i-1&&o.push(t)}return o}function Hy(t,e,n){const o=t.parent,i=o.parent,r=o.index,s=e-r,a={},l=parseInt(t.getAttribute("rowspan"))-s;l>1&&(a.rowspan=l);const c=parseInt(t.getAttribute("colspan")||"1");c>1&&(a.colspan=c);const d=r+s,h=[...new Sy(i,{startRow:r,endRow:d,includeAllSlots:!0})];let u,g=null;for(const e of h){const{row:o,column:i,cell:r}=e;r===t&&void 0===u&&(u=i),void 0!==u&&u===i&&o===d&&(g=vy(n,e.getPositionBefore(),a))}return Cy("rowspan",s,t,n),g}function jy(t,e){const n=[],o=new Sy(t);for(const t of o){const{column:o,cellWidth:i}=t;o<e&&e<=o+i-1&&n.push(t)}return n}function qy(t,e,n,o){const i=n-e,r={},s=parseInt(t.getAttribute("colspan"))-i;s>1&&(r.colspan=s);const a=parseInt(t.getAttribute("rowspan")||"1");a>1&&(r.rowspan=a);const l=vy(o,o.createPositionAfter(t),r);return Cy("colspan",i,t,o),l}function Wy(t,e,n,o,i,r){const s=parseInt(t.getAttribute("colspan")||"1"),a=parseInt(t.getAttribute("rowspan")||"1");if(n+s-1>i){Cy("colspan",i-n+1,t,r,1)}if(e+a-1>o){Cy("rowspan",o-e+1,t,r,1)}}function Uy(t,e){const n=e.getColumns(t),o=new Array(n).fill(0);for(const{column:e}of new Sy(t))o[e]++;const i=o.reduce(((t,e,n)=>e?t:[...t,n]),[]);if(i.length>0){const n=i[i.length-1];return e.removeColumns(t,{at:n}),!0}return!1}function $y(t,e){const n=[],o=e.getRows(t);for(let e=0;e<o;e++){t.getChild(e).isEmpty&&n.push(e)}if(n.length>0){const o=n[n.length-1];return e.removeRows(t,{at:o}),!0}return!1}function Gy(t,e){Uy(t,e)||$y(t,e)}function Ky(t,e){const n=Array.from(new Sy(t,{startColumn:e.firstColumn,endColumn:e.lastColumn,row:e.lastRow}));if(n.every((({cellHeight:t})=>1===t)))return e.lastRow;const o=n[0].cellHeight-1;return e.lastRow+o}function Zy(t,e){const n=Array.from(new Sy(t,{startRow:e.firstRow,endRow:e.lastRow,column:e.lastColumn}));if(n.every((({cellWidth:t})=>1===t)))return e.lastColumn;const o=n[0].cellWidth-1;return e.lastColumn+o}class Jy extends zi{constructor(t,e){super(t),this.direction=e.direction,this.isHorizontal="right"==this.direction||"left"==this.direction}refresh(){const t=this._getMergeableCell();this.value=t,this.isEnabled=!!t}execute(){const t=this.editor.model,e=t.document,n=this.editor.plugins.get("TableUtils").getTableCellsContainingSelection(e.selection)[0],o=this.value,i=this.direction;t.change((t=>{const e="right"==i||"down"==i,r=e?n:o,s=e?o:n,a=s.parent;!function(t,e,n){Yy(t)||(Yy(e)&&n.remove(n.createRangeIn(e)),n.move(n.createRangeIn(t),n.createPositionAt(e,"end")));n.remove(t)}(s,r,t);const l=this.isHorizontal?"colspan":"rowspan",c=parseInt(n.getAttribute(l)||"1"),d=parseInt(o.getAttribute(l)||"1");t.setAttribute(l,c+d,r),t.setSelection(t.createRangeIn(r));const h=this.editor.plugins.get("TableUtils");Gy(a.findAncestor("table"),h)}))}_getMergeableCell(){const t=this.editor.model.document,e=this.editor.plugins.get("TableUtils"),n=e.getTableCellsContainingSelection(t.selection)[0];if(!n)return;const o=this.isHorizontal?function(t,e,n){const o=t.parent,i=o.parent,r="right"==e?t.nextSibling:t.previousSibling,s=(i.getAttribute("headingColumns")||0)>0;if(!r)return;const a="right"==e?t:r,l="right"==e?r:t,{column:c}=n.getCellLocation(a),{column:d}=n.getCellLocation(l),h=parseInt(a.getAttribute("colspan")||"1"),u=yy(n,a),g=yy(n,l);if(s&&u!=g)return;return c+h===d?r:void 0}(n,this.direction,e):function(t,e,n){const o=t.parent,i=o.parent,r=i.getChildIndex(o);if("down"==e&&r===n.getRows(i)-1||"up"==e&&0===r)return null;const s=parseInt(t.getAttribute("rowspan")||"1"),a=i.getAttribute("headingRows")||0,l="down"==e&&r+s===a,c="up"==e&&r===a;if(a&&(l||c))return null;const d=parseInt(t.getAttribute("rowspan")||"1"),h="down"==e?r+d:r,u=[...new Sy(i,{endRow:h})],g=u.find((e=>e.cell===t)),m=g.column,p=u.find((({row:t,cellHeight:n,column:o})=>o===m&&("down"==e?t===h:h===t+n)));return p&&p.cell?p.cell:null}(n,this.direction,e);if(!o)return;const i=this.isHorizontal?"rowspan":"colspan",r=parseInt(n.getAttribute(i)||"1");return parseInt(o.getAttribute(i)||"1")===r?o:void 0}}function Yy(t){const e=t.getChild(0);return 1==t.childCount&&e.is("element","paragraph")&&e.isEmpty}class Qy extends zi{refresh(){const t=this.editor.plugins.get("TableUtils"),e=t.getSelectionAffectedTableCells(this.editor.model.document.selection),n=e[0];if(n){const o=n.findAncestor("table"),i=t.getRows(o)-1,r=t.getRowIndexes(e),s=0===r.first&&r.last===i;this.isEnabled=!s}else this.isEnabled=!1}execute(){const t=this.editor.model,e=this.editor.plugins.get("TableUtils"),n=e.getSelectionAffectedTableCells(t.document.selection),o=e.getRowIndexes(n),i=n[0],r=i.findAncestor("table"),s=e.getCellLocation(i).column;t.change((t=>{const n=o.last-o.first+1;e.removeRows(r,{at:o.first,rows:n});const i=function(t,e,n,o){const i=t.getChild(Math.min(e,o-1));let r=i.getChild(0),s=0;for(const t of i.getChildren()){if(s>n)return r;r=t,s+=parseInt(t.getAttribute("colspan")||"1")}return r}(r,o.first,s,e.getRows(r));t.setSelection(t.createPositionAt(i,0))}))}}class Xy extends zi{refresh(){const t=this.editor.plugins.get("TableUtils"),e=t.getSelectionAffectedTableCells(this.editor.model.document.selection),n=e[0];if(n){const o=n.findAncestor("table"),i=t.getColumns(o),{first:r,last:s}=t.getColumnIndexes(e);this.isEnabled=s-r<i-1}else this.isEnabled=!1}execute(){const t=this.editor.plugins.get("TableUtils"),[e,n]=function(t,e){const n=e.getSelectionAffectedTableCells(t),o=n[0],i=n.pop(),r=[o,i];return o.isBefore(i)?r:r.reverse()}(this.editor.model.document.selection,t),o=e.parent.parent,i=[...new Sy(o)],r={first:i.find((t=>t.cell===e)).column,last:i.find((t=>t.cell===n)).column},s=function(t,e,n,o){const i=parseInt(n.getAttribute("colspan")||"1");return i>1?n:e.previousSibling||n.nextSibling?n.nextSibling||e.previousSibling:o.first?t.reverse().find((({column:t})=>t<o.first)).cell:t.reverse().find((({column:t})=>t>o.last)).cell}(i,e,n,r);this.editor.model.change((e=>{const n=r.last-r.first+1;t.removeColumns(o,{at:r.first,columns:n}),e.setSelection(e.createPositionAt(s,0))}))}}class tx extends zi{refresh(){const t=this.editor.plugins.get("TableUtils"),e=this.editor.model,n=t.getSelectionAffectedTableCells(e.document.selection),o=n.length>0;this.isEnabled=o,this.value=o&&n.every((t=>this._isInHeading(t,t.parent.parent)))}execute(t={}){if(t.forceValue===this.value)return;const e=this.editor.plugins.get("TableUtils"),n=this.editor.model,o=e.getSelectionAffectedTableCells(n.document.selection),i=o[0].findAncestor("table"),{first:r,last:s}=e.getRowIndexes(o),a=this.value?r:s+1,l=i.getAttribute("headingRows")||0;n.change((t=>{if(a){const e=Ly(i,a,a>l?l:0);for(const{cell:n}of e)Hy(n,a,t)}Cy("headingRows",a,i,t,0)}))}_isInHeading(t,e){const n=parseInt(e.getAttribute("headingRows")||"0");return!!n&&t.parent.index<n}}class ex extends zi{refresh(){const t=this.editor.model,e=this.editor.plugins.get("TableUtils"),n=e.getSelectionAffectedTableCells(t.document.selection),o=n.length>0;this.isEnabled=o,this.value=o&&n.every((t=>yy(e,t)))}execute(t={}){if(t.forceValue===this.value)return;const e=this.editor.plugins.get("TableUtils"),n=this.editor.model,o=e.getSelectionAffectedTableCells(n.document.selection),i=o[0].findAncestor("table"),{first:r,last:s}=e.getColumnIndexes(o),a=this.value?r:s+1;n.change((t=>{if(a){const e=jy(i,a);for(const{cell:n,column:o}of e)qy(n,o,a,t)}Cy("headingColumns",a,i,t,0)}))}}class nx extends Pi{static get pluginName(){return"TableUtils"}init(){this.decorate("insertColumns"),this.decorate("insertRows")}getCellLocation(t){const e=t.parent,n=e.parent,o=n.getChildIndex(e),i=new Sy(n,{row:o});for(const{cell:e,row:n,column:o}of i)if(e===t)return{row:n,column:o}}createTable(t,e){const n=t.createElement("table"),o=e.rows||2,i=e.columns||2;return ox(t,n,0,o,i),e.headingRows&&Cy("headingRows",Math.min(e.headingRows,o),n,t,0),e.headingColumns&&Cy("headingColumns",Math.min(e.headingColumns,i),n,t,0),n}insertRows(t,e={}){const n=this.editor.model,o=e.at||0,i=e.rows||1,r=void 0!==e.copyStructureFromAbove,s=e.copyStructureFromAbove?o-1:o,a=this.getRows(t),l=this.getColumns(t);if(o>a)throw new b("tableutils-insertrows-insert-out-of-range",this,{options:e});n.change((e=>{const n=t.getAttribute("headingRows")||0;if(n>o&&Cy("headingRows",n+i,t,e,0),!r&&(0===o||o===a))return void ox(e,t,o,i,l);const c=r?Math.max(o,s):o,d=new Sy(t,{endRow:c}),h=new Array(l).fill(1);for(const{row:t,column:n,cellHeight:a,cellWidth:l,cell:c}of d){const d=t+a-1,u=t<=s&&s<=d;t<o&&o<=d?(e.setAttribute("rowspan",a+i,c),h[n]=-l):r&&u&&(h[n]=l)}for(let n=0;n<i;n++){const n=e.createElement("tableRow");e.insert(n,t,o);for(let t=0;t<h.length;t++){const o=h[t],i=e.createPositionAt(n,"end");o>0&&vy(e,i,o>1?{colspan:o}:void 0),t+=Math.abs(o)-1}}}))}insertColumns(t,e={}){const n=this.editor.model,o=e.at||0,i=e.columns||1;n.change((e=>{const n=t.getAttribute("headingColumns");o<n&&e.setAttribute("headingColumns",n+i,t);const r=this.getColumns(t);if(0===o||r===o){for(const n of t.getChildren())n.is("element","tableRow")&&ix(i,e,e.createPositionAt(n,o?"end":0));return}const s=new Sy(t,{column:o,includeAllSlots:!0});for(const t of s){const{row:n,cell:r,cellAnchorColumn:a,cellAnchorRow:l,cellWidth:c,cellHeight:d}=t;if(a<o){e.setAttribute("colspan",c+i,r);const t=l+d-1;for(let e=n;e<=t;e++)s.skipRow(e)}else ix(i,e,t.getPositionBefore())}}))}removeRows(t,e){const n=this.editor.model,o=e.rows||1,i=this.getRows(t),r=e.at,s=r+o-1;if(s>i-1)throw new b("tableutils-removerows-row-index-out-of-range",this,{table:t,options:e});n.change((e=>{const n={first:r,last:s},{cellsToMove:o,cellsToTrim:i}=function(t,{first:e,last:n}){const o=new Map,i=[];for(const{row:r,column:s,cellHeight:a,cell:l}of new Sy(t,{endRow:n})){const t=r+a-1;if(r>=e&&r<=n&&t>n){const t=a-(n-r+1);o.set(s,{cell:l,rowspan:t})}if(r<e&&t>=e){let o;o=t>=n?n-e+1:t-e+1,i.push({cell:l,rowspan:a-o})}}return{cellsToMove:o,cellsToTrim:i}}(t,n);if(o.size){!function(t,e,n,o){const i=new Sy(t,{includeAllSlots:!0,row:e}),r=[...i],s=t.getChild(e);let a;for(const{column:t,cell:e,isAnchor:i}of r)if(n.has(t)){const{cell:e,rowspan:i}=n.get(t),r=a?o.createPositionAfter(a):o.createPositionAt(s,0);o.move(o.createRangeOn(e),r),Cy("rowspan",i,e,o),a=e}else i&&(a=e)}(t,s+1,o,e)}for(let n=s;n>=r;n--)e.remove(t.getChild(n));for(const{rowspan:t,cell:n}of i)Cy("rowspan",t,n,e);!function(t,{first:e,last:n},o){const i=t.getAttribute("headingRows")||0;if(e<i){Cy("headingRows",n<i?i-(n-e+1):e,t,o,0)}}(t,n,e),Uy(t,this)||$y(t,this)}))}removeColumns(t,e){const n=this.editor.model,o=e.at,i=e.columns||1,r=e.at+i-1;n.change((e=>{!function(t,e,n){const o=t.getAttribute("headingColumns")||0;if(o&&e.first<o){const i=Math.min(o-1,e.last)-e.first+1;n.setAttribute("headingColumns",o-i,t)}}(t,{first:o,last:r},e);for(let n=r;n>=o;n--)for(const{cell:o,column:i,cellWidth:r}of[...new Sy(t)])i<=n&&r>1&&i+r>n?Cy("colspan",r-1,o,e):i===n&&e.remove(o);$y(t,this)||Uy(t,this)}))}splitCellVertically(t,e=2){const n=this.editor.model,o=t.parent.parent,i=parseInt(t.getAttribute("rowspan")||"1"),r=parseInt(t.getAttribute("colspan")||"1");n.change((n=>{if(r>1){const{newCellsSpan:o,updatedSpan:s}=rx(r,e);Cy("colspan",s,t,n);const a={};o>1&&(a.colspan=o),i>1&&(a.rowspan=i);ix(r>e?e-1:r-1,n,n.createPositionAfter(t),a)}if(r<e){const s=e-r,a=[...new Sy(o)],{column:l}=a.find((({cell:e})=>e===t)),c=a.filter((({cell:e,cellWidth:n,column:o})=>e!==t&&o===l||o<l&&o+n>l));for(const{cell:t,cellWidth:e}of c)n.setAttribute("colspan",e+s,t);const d={};i>1&&(d.rowspan=i),ix(s,n,n.createPositionAfter(t),d);const h=o.getAttribute("headingColumns")||0;h>l&&Cy("headingColumns",h+s,o,n)}}))}splitCellHorizontally(t,e=2){const n=this.editor.model,o=t.parent,i=o.parent,r=i.getChildIndex(o),s=parseInt(t.getAttribute("rowspan")||"1"),a=parseInt(t.getAttribute("colspan")||"1");n.change((n=>{if(s>1){const o=[...new Sy(i,{startRow:r,endRow:r+s-1,includeAllSlots:!0})],{newCellsSpan:l,updatedSpan:c}=rx(s,e);Cy("rowspan",c,t,n);const{column:d}=o.find((({cell:e})=>e===t)),h={};l>1&&(h.rowspan=l),a>1&&(h.colspan=a);for(const t of o){const{column:e,row:o}=t;o>=r+c&&e===d&&(o+r+c)%l==0&&ix(1,n,t.getPositionBefore(),h)}}if(s<e){const o=e-s,l=[...new Sy(i,{startRow:0,endRow:r})];for(const{cell:e,cellHeight:i,row:s}of l)if(e!==t&&s+i>r){const t=i+o;n.setAttribute("rowspan",t,e)}const c={};a>1&&(c.colspan=a),ox(n,i,r+1,o,1,c);const d=i.getAttribute("headingRows")||0;d>r&&Cy("headingRows",d+o,i,n)}}))}getColumns(t){return[...t.getChild(0).getChildren()].reduce(((t,e)=>t+parseInt(e.getAttribute("colspan")||"1")),0)}getRows(t){return Array.from(t.getChildren()).reduce(((t,e)=>e.is("element","tableRow")?t+1:t),0)}createTableWalker(t,e={}){return new Sy(t,e)}getSelectedTableCells(t){const e=[];for(const n of this.sortRanges(t.getRanges())){const t=n.getContainedElement();t&&t.is("element","tableCell")&&e.push(t)}return e}getTableCellsContainingSelection(t){const e=[];for(const n of t.getRanges()){const t=n.start.findAncestor("tableCell");t&&e.push(t)}return e}getSelectionAffectedTableCells(t){const e=this.getSelectedTableCells(t);return e.length?e:this.getTableCellsContainingSelection(t)}getRowIndexes(t){const e=t.map((t=>t.parent.index));return this._getFirstLastIndexesObject(e)}getColumnIndexes(t){const e=t[0].findAncestor("table"),n=[...new Sy(e)].filter((e=>t.includes(e.cell))).map((t=>t.column));return this._getFirstLastIndexesObject(n)}isSelectionRectangular(t){if(t.length<2||!this._areCellInTheSameTableSection(t))return!1;const e=new Set,n=new Set;let o=0;for(const i of t){const{row:t,column:r}=this.getCellLocation(i),s=parseInt(i.getAttribute("rowspan"))||1,a=parseInt(i.getAttribute("colspan"))||1;e.add(t),n.add(r),s>1&&e.add(t+s-1),a>1&&n.add(r+a-1),o+=s*a}const i=function(t,e){const n=Array.from(t.values()),o=Array.from(e.values()),i=Math.max(...n),r=Math.min(...n),s=Math.max(...o),a=Math.min(...o);return(i-r+1)*(s-a+1)}(e,n);return i==o}sortRanges(t){return Array.from(t).sort(sx)}_getFirstLastIndexesObject(t){const e=t.sort(((t,e)=>t-e));return{first:e[0],last:e[e.length-1]}}_areCellInTheSameTableSection(t){const e=t[0].findAncestor("table"),n=this.getRowIndexes(t),o=parseInt(e.getAttribute("headingRows"))||0;if(!this._areIndexesInSameSection(n,o))return!1;const i=this.getColumnIndexes(t),r=parseInt(e.getAttribute("headingColumns"))||0;return this._areIndexesInSameSection(i,r)}_areIndexesInSameSection({first:t,last:e},n){return t<n===e<n}}function ox(t,e,n,o,i,r={}){for(let s=0;s<o;s++){const o=t.createElement("tableRow");t.insert(o,e,n),ix(i,t,t.createPositionAt(o,"end"),r)}}function ix(t,e,n,o={}){for(let i=0;i<t;i++)vy(e,n,o)}function rx(t,e){if(t<e)return{newCellsSpan:1,updatedSpan:1};const n=Math.floor(t/e);return{newCellsSpan:n,updatedSpan:t-n*e+n}}function sx(t,e){const n=t.start,o=e.start;return n.isBefore(o)?-1:1}class ax extends zi{refresh(){const t=this.editor.plugins.get(nx),e=t.getSelectedTableCells(this.editor.model.document.selection);this.isEnabled=t.isSelectionRectangular(e)}execute(){const t=this.editor.model,e=this.editor.plugins.get(nx);t.change((n=>{const o=e.getSelectedTableCells(t.document.selection),i=o.shift(),{mergeWidth:r,mergeHeight:s}=function(t,e,n){let o=0,i=0;for(const t of e){const{row:e,column:r}=n.getCellLocation(t);o=dx(t,r,o,"colspan"),i=dx(t,e,i,"rowspan")}const{row:r,column:s}=n.getCellLocation(t),a=o-s,l=i-r;return{mergeWidth:a,mergeHeight:l}}(i,o,e);Cy("colspan",r,i,n),Cy("rowspan",s,i,n);for(const t of o)lx(t,i,n);Gy(i.findAncestor("table"),e),n.setSelection(i,"in")}))}}function lx(t,e,n){cx(t)||(cx(e)&&n.remove(n.createRangeIn(e)),n.move(n.createRangeIn(t),n.createPositionAt(e,"end"))),n.remove(t)}function cx(t){const e=t.getChild(0);return 1==t.childCount&&e.is("element","paragraph")&&e.isEmpty}function dx(t,e,n,o){const i=parseInt(t.getAttribute(o)||"1");return Math.max(n,e+i)}class hx extends zi{constructor(t){super(t),this.affectsData=!1}refresh(){const t=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(this.editor.model.document.selection);this.isEnabled=t.length>0}execute(){const t=this.editor.model,e=this.editor.plugins.get("TableUtils"),n=e.getSelectionAffectedTableCells(t.document.selection),o=e.getRowIndexes(n),i=n[0].findAncestor("table"),r=[];for(let e=o.first;e<=o.last;e++)for(const n of i.getChild(e).getChildren())r.push(t.createRangeOn(n));t.change((t=>{t.setSelection(r)}))}}class ux extends zi{constructor(t){super(t),this.affectsData=!1}refresh(){const t=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(this.editor.model.document.selection);this.isEnabled=t.length>0}execute(){const t=this.editor.plugins.get("TableUtils"),e=this.editor.model,n=t.getSelectionAffectedTableCells(e.document.selection),o=n[0],i=n.pop(),r=o.findAncestor("table"),s=t.getCellLocation(o),a=t.getCellLocation(i),l=Math.min(s.column,a.column),c=Math.max(s.column,a.column),d=[];for(const t of new Sy(r,{startColumn:l,endColumn:c}))d.push(e.createRangeOn(t.cell));e.change((t=>{t.setSelection(d)}))}}function gx(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.differ.getChanges();let o=!1;const i=new Set;for(const e of n){let n=null;"insert"==e.type&&"table"==e.name&&(n=e.position.nodeAfter),"insert"!=e.type&&"remove"!=e.type||"tableRow"!=e.name&&"tableCell"!=e.name||(n=e.position.findAncestor("table")),fx(e)&&(n=e.range.start.findAncestor("table")),n&&!i.has(n)&&(o=mx(n,t)||o,o=px(n,t)||o,i.add(n))}return o}(e,t)))}function mx(t,e){let n=!1;const o=function(t){const e=parseInt(t.getAttribute("headingRows")||"0"),n=Array.from(t.getChildren()).reduce(((t,e)=>e.is("element","tableRow")?t+1:t),0),o=[];for(const{row:i,cell:r,cellHeight:s}of new Sy(t)){if(s<2)continue;const t=i<e?e:n;if(i+s>t){const e=t-i;o.push({cell:r,rowspan:e})}}return o}(t);if(o.length){n=!0;for(const t of o)Cy("rowspan",t.rowspan,t.cell,e,1)}return n}function px(t,e){let n=!1;const o=function(t){const e=new Array(t.childCount).fill(0);for(const{rowIndex:n}of new Sy(t,{includeAllSlots:!0}))e[n]++;return e}(t),i=[];for(const[e,n]of o.entries())!n&&t.getChild(e).is("element","tableRow")&&i.push(e);if(i.length){n=!0;for(const n of i.reverse())e.remove(t.getChild(n)),o.splice(n,1)}const r=o.filter(((e,n)=>t.getChild(n).is("element","tableRow"))),s=r[0];if(!r.every((t=>t===s))){const o=r.reduce(((t,e)=>e>t?e:t),0);for(const[i,s]of r.entries()){const r=o-s;if(r){for(let n=0;n<r;n++)vy(e,e.createPositionAt(t.getChild(i),"end"));n=!0}}}return n}function fx(t){if("attribute"!==t.type)return!1;const e=t.attributeKey;return"headingRows"===e||"colspan"===e||"rowspan"===e}function bx(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.differ.getChanges();let o=!1;for(const e of n)"insert"==e.type&&"table"==e.name&&(o=kx(e.position.nodeAfter,t)||o),"insert"==e.type&&"tableRow"==e.name&&(o=wx(e.position.nodeAfter,t)||o),"insert"==e.type&&"tableCell"==e.name&&(o=_x(e.position.nodeAfter,t)||o),"remove"!=e.type&&"insert"!=e.type||!Ax(e)||(o=_x(e.position.parent,t)||o);return o}(e,t)))}function kx(t,e){let n=!1;for(const o of t.getChildren())o.is("element","tableRow")&&(n=wx(o,e)||n);return n}function wx(t,e){let n=!1;for(const o of t.getChildren())n=_x(o,e)||n;return n}function _x(t,e){if(0==t.childCount)return e.insertElement("paragraph",t),!0;const n=Array.from(t.getChildren()).filter((t=>t.is("$text")));for(const t of n)e.wrap(e.createRangeOn(t),"paragraph");return!!n.length}function Ax(t){return!!t.position.parent.is("element","tableCell")&&("insert"==t.type&&"$text"==t.name||"remove"==t.type)}function Cx(t,e){if(!t.is("element","paragraph"))return!1;const n=e.toViewElement(t);return!!n&&zy(t)!==n.is("element","span")}var vx=n(3881),yx={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(vx.Z,yx);vx.Z.locals;class xx extends Pi{constructor(t){super(t),this._additionalSlots=[]}static get pluginName(){return"TableEditing"}static get requires(){return[nx]}init(){const t=this.editor,e=t.model,n=e.schema,o=t.conversion,i=t.plugins.get(nx);n.register("table",{inheritAllFrom:"$blockObject",allowAttributes:["headingRows","headingColumns"]}),n.register("tableRow",{allowIn:"table",isLimit:!0}),n.register("tableCell",{allowContentOf:"$container",allowIn:"tableRow",allowAttributes:["colspan","rowspan"],isLimit:!0,isSelectable:!0}),o.for("upcast").add((t=>{t.on("element:figure",((t,e,n)=>{if(!n.consumable.test(e.viewItem,{name:!0,classes:"table"}))return;const o=function(t){for(const e of t.getChildren())if(e.is("element","table"))return e}(e.viewItem);if(!o||!n.consumable.test(o,{name:!0}))return;n.consumable.consume(e.viewItem,{name:!0,classes:"table"});const i=yi(n.convertItem(o,e.modelCursor).modelRange.getItems());i?(n.convertChildren(e.viewItem,n.writer.createPositionAt(i,"end")),n.updateConversionResult(i,e)):n.consumable.revert(e.viewItem,{name:!0,classes:"table"})}))})),o.for("upcast").add(Ey()),o.for("editingDowncast").elementToStructure({model:{name:"table",attributes:["headingRows"]},view:Iy(i,{asWidget:!0,additionalSlots:this._additionalSlots})}),o.for("dataDowncast").elementToStructure({model:{name:"table",attributes:["headingRows"]},view:Iy(i,{additionalSlots:this._additionalSlots})}),o.for("upcast").elementToElement({model:"tableRow",view:"tr"}),o.for("upcast").add((t=>{t.on("element:tr",((t,e)=>{e.viewItem.isEmpty&&0==e.modelCursor.index&&t.stop()}),{priority:"high"})})),o.for("downcast").elementToElement({model:"tableRow",view:(t,{writer:e})=>t.isEmpty?e.createEmptyElement("tr"):e.createContainerElement("tr")}),o.for("upcast").elementToElement({model:"tableCell",view:"td"}),o.for("upcast").elementToElement({model:"tableCell",view:"th"}),o.for("upcast").add(Ty("td")),o.for("upcast").add(Ty("th")),o.for("editingDowncast").elementToElement({model:"tableCell",view:Py({asWidget:!0})}),o.for("dataDowncast").elementToElement({model:"tableCell",view:Py()}),o.for("editingDowncast").elementToElement({model:"paragraph",view:Ry({asWidget:!0}),converterPriority:"high"}),o.for("dataDowncast").elementToElement({model:"paragraph",view:Ry(),converterPriority:"high"}),o.for("downcast").attributeToAttribute({model:"colspan",view:"colspan"}),o.for("upcast").attributeToAttribute({model:{key:"colspan",value:Ex("colspan")},view:"colspan"}),o.for("downcast").attributeToAttribute({model:"rowspan",view:"rowspan"}),o.for("upcast").attributeToAttribute({model:{key:"rowspan",value:Ex("rowspan")},view:"rowspan"}),t.config.define("table.defaultHeadings.rows",0),t.config.define("table.defaultHeadings.columns",0),t.commands.add("insertTable",new Vy(t)),t.commands.add("insertTableRowAbove",new Oy(t,{order:"above"})),t.commands.add("insertTableRowBelow",new Oy(t,{order:"below"})),t.commands.add("insertTableColumnLeft",new Fy(t,{order:"left"})),t.commands.add("insertTableColumnRight",new Fy(t,{order:"right"})),t.commands.add("removeTableRow",new Qy(t)),t.commands.add("removeTableColumn",new Xy(t)),t.commands.add("splitTableCellVertically",new Ny(t,{direction:"vertically"})),t.commands.add("splitTableCellHorizontally",new Ny(t,{direction:"horizontally"})),t.commands.add("mergeTableCells",new ax(t)),t.commands.add("mergeTableCellRight",new Jy(t,{direction:"right"})),t.commands.add("mergeTableCellLeft",new Jy(t,{direction:"left"})),t.commands.add("mergeTableCellDown",new Jy(t,{direction:"down"})),t.commands.add("mergeTableCellUp",new Jy(t,{direction:"up"})),t.commands.add("setTableColumnHeader",new ex(t)),t.commands.add("setTableRowHeader",new tx(t)),t.commands.add("selectTableRow",new hx(t)),t.commands.add("selectTableColumn",new ux(t)),gx(e),bx(e),this.listenTo(e.document,"change:data",(()=>{!function(t,e){const n=t.document.differ;for(const t of n.getChanges()){let n,o=!1;if("attribute"==t.type){const e=t.range.start.nodeAfter;if(!e||!e.is("element","table"))continue;if("headingRows"!=t.attributeKey&&"headingColumns"!=t.attributeKey)continue;n=e,o="headingRows"==t.attributeKey}else"tableRow"!=t.name&&"tableCell"!=t.name||(n=t.position.findAncestor("table"),o="tableRow"==t.name);if(!n)continue;const i=n.getAttribute("headingRows")||0,r=n.getAttribute("headingColumns")||0,s=new Sy(n);for(const t of s){const n=t.row<i||t.column<r?"th":"td",s=e.mapper.toViewElement(t.cell);s&&s.is("element")&&s.name!=n&&e.reconvertItem(o?t.cell.parent:t.cell)}}}(e,t.editing),function(t,e){const n=t.document.differ,o=new Set;for(const t of n.getChanges()){const e="attribute"==t.type?t.range.start.parent:t.position.parent;e.is("element","tableCell")&&o.add(e)}for(const t of o.values()){const n=Array.from(t.getChildren()).filter((t=>Cx(t,e.mapper)));for(const t of n)e.reconvertItem(t)}}(e,t.editing)}))}registerAdditionalSlot(t){this._additionalSlots.push(t)}}function Ex(t){return e=>{const n=parseInt(e.getAttribute(t));return Number.isNaN(n)||n<=0?null:n}}var Tx=n(1613),Dx={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Tx.Z,Dx);Tx.Z.locals;class Sx extends ig{constructor(t){super(t);const e=this.bindTemplate;this.items=this._createGridCollection(),this.keystrokes=new Ei,this.focusTracker=new xi,this.set("rows",0),this.set("columns",0),this.bind("label").to(this,"columns",this,"rows",((t,e)=>`${e} × ${t}`)),this.setTemplate({tag:"div",attributes:{class:["ck"]},children:[{tag:"div",attributes:{class:["ck-insert-table-dropdown__grid"]},on:{"mouseover@.ck-insert-table-dropdown-grid-box":e.to("boxover")},children:this.items},{tag:"div",attributes:{class:["ck","ck-insert-table-dropdown__label"],"aria-hidden":!0},children:[{text:e.to("label")}]}],on:{mousedown:e.to((t=>{t.preventDefault()})),click:e.to((()=>{this.fire("execute")}))}}),this.on("boxover",((t,e)=>{const{row:n,column:o}=e.target.dataset;this.items.get(10*(parseInt(n,10)-1)+(parseInt(o,10)-1)).focus()})),this.focusTracker.on("change:focusedElement",((t,e,n)=>{if(!n)return;const{row:o,column:i}=n.dataset;this.set({rows:parseInt(o),columns:parseInt(i)})})),this.on("change:columns",(()=>this._highlightGridBoxes())),this.on("change:rows",(()=>this._highlightGridBoxes()))}render(){super.render(),tg({keystrokeHandler:this.keystrokes,focusTracker:this.focusTracker,gridItems:this.items,numberOfColumns:10,uiLanguageDirection:this.locale&&this.locale.uiLanguageDirection});for(const t of this.items)this.focusTracker.add(t.element);this.keystrokes.listenTo(this.element)}focus(){this.items.get(0).focus()}focusLast(){this.items.get(0).focus()}_highlightGridBoxes(){const t=this.rows,e=this.columns;this.items.map(((n,o)=>{const i=Math.floor(o/10)<t&&o%10<e;n.set("isOn",i)}))}_createGridButton(t,e,n,o){const i=new Rg(t);return i.set({label:o,class:"ck-insert-table-dropdown-grid-box"}),i.extendTemplate({attributes:{"data-row":e,"data-column":n}}),i}_createGridCollection(){const t=[];for(let e=0;e<100;e++){const n=Math.floor(e/10),o=e%10,i=`${n+1} × ${o+1}`;t.push(this._createGridButton(this.locale,n+1,o+1,i))}return this.createCollection(t)}}class Bx extends Pi{static get pluginName(){return"TableUI"}init(){const t=this.editor,e=this.editor.t,n="ltr"===t.locale.contentLanguageDirection;t.ui.componentFactory.add("insertTable",(n=>{const o=t.commands.get("insertTable"),i=ym(n);let r;return i.bind("isEnabled").to(o),i.buttonView.set({icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M3 6v3h4V6H3zm0 4v3h4v-3H3zm0 4v3h4v-3H3zm5 3h4v-3H8v3zm5 0h4v-3h-4v3zm4-4v-3h-4v3h4zm0-4V6h-4v3h4zm1.5 8a1.5 1.5 0 0 1-1.5 1.5H3A1.5 1.5 0 0 1 1.5 17V4c.222-.863 1.068-1.5 2-1.5h13c.932 0 1.778.637 2 1.5v13zM12 13v-3H8v3h4zm0-4V6H8v3h4z"/></svg>',label:e("Insert table"),tooltip:!0}),i.on("change:isOpen",(()=>{r||(r=new Sx(n),i.panelView.children.add(r),r.delegate("execute").to(i),i.on("execute",(()=>{t.execute("insertTable",{rows:r.rows,columns:r.columns}),t.editing.view.focus()})))})),i})),t.ui.componentFactory.add("tableColumn",(t=>{const o=[{type:"switchbutton",model:{commandName:"setTableColumnHeader",label:e("Header column"),bindIsOn:!0}},{type:"separator"},{type:"button",model:{commandName:n?"insertTableColumnLeft":"insertTableColumnRight",label:e("Insert column left")}},{type:"button",model:{commandName:n?"insertTableColumnRight":"insertTableColumnLeft",label:e("Insert column right")}},{type:"button",model:{commandName:"removeTableColumn",label:e("Delete column")}},{type:"button",model:{commandName:"selectTableColumn",label:e("Select column")}}];return this._prepareDropdown(e("Column"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z" opacity=".6"/><path d="M18 7v1H2V7h16zm0 5v1H2v-1h16z" opacity=".6"/><path d="M14 1v18a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V1a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1zm-2 1H8v4h4V2zm0 6H8v4h4V8zm0 6H8v4h4v-4z"/></svg>',o,t)})),t.ui.componentFactory.add("tableRow",(t=>{const n=[{type:"switchbutton",model:{commandName:"setTableRowHeader",label:e("Header row"),bindIsOn:!0}},{type:"separator"},{type:"button",model:{commandName:"insertTableRowAbove",label:e("Insert row above")}},{type:"button",model:{commandName:"insertTableRowBelow",label:e("Insert row below")}},{type:"button",model:{commandName:"removeTableRow",label:e("Delete row")}},{type:"button",model:{commandName:"selectTableRow",label:e("Select row")}}];return this._prepareDropdown(e("Row"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z" opacity=".6"/><path d="M7 2h1v16H7V2zm5 0h1v16h-1V2z" opacity=".6"/><path d="M1 6h18a1 1 0 0 1 1 1v6a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1zm1 2v4h4V8H2zm6 0v4h4V8H8zm6 0v4h4V8h-4z"/></svg>',n,t)})),t.ui.componentFactory.add("mergeTableCells",(t=>{const o=[{type:"button",model:{commandName:"mergeTableCellUp",label:e("Merge cell up")}},{type:"button",model:{commandName:n?"mergeTableCellRight":"mergeTableCellLeft",label:e("Merge cell right")}},{type:"button",model:{commandName:"mergeTableCellDown",label:e("Merge cell down")}},{type:"button",model:{commandName:n?"mergeTableCellLeft":"mergeTableCellRight",label:e("Merge cell left")}},{type:"separator"},{type:"button",model:{commandName:"splitTableCellVertically",label:e("Split cell vertically")}},{type:"button",model:{commandName:"splitTableCellHorizontally",label:e("Split cell horizontally")}}];return this._prepareMergeSplitButtonDropdown(e("Merge cells"),'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z" opacity=".6"/><path d="M7 2h1v16H7V2zm5 0h1v7h-1V2zm6 5v1H2V7h16zM8 12v1H2v-1h6z" opacity=".6"/><path d="M7 7h12a1 1 0 0 1 1 1v11a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V8a1 1 0 0 1 1-1zm1 2v9h10V9H8z"/></svg>',o,t)}))}_prepareDropdown(t,e,n,o){const i=this.editor,r=ym(o),s=this._fillDropdownWithListOptions(r,n);return r.buttonView.set({label:t,icon:e,tooltip:!0}),r.bind("isEnabled").toMany(s,"isEnabled",((...t)=>t.some((t=>t)))),this.listenTo(r,"execute",(t=>{i.execute(t.source.commandName),t.source instanceof Og||i.editing.view.focus()})),r}_prepareMergeSplitButtonDropdown(t,e,n,o){const i=this.editor,r=ym(o,em),s="mergeTableCells",a=i.commands.get(s),l=this._fillDropdownWithListOptions(r,n);return r.buttonView.set({label:t,icon:e,tooltip:!0,isEnabled:!0}),r.bind("isEnabled").toMany([a,...l],"isEnabled",((...t)=>t.some((t=>t)))),this.listenTo(r.buttonView,"execute",(()=>{i.execute(s),i.editing.view.focus()})),this.listenTo(r,"execute",(t=>{i.execute(t.source.commandName),i.editing.view.focus()})),r}_fillDropdownWithListOptions(t,e){const n=this.editor,o=[],i=new vi;for(const t of e)Ix(t,n,o,i);return Tm(t,i),o}}function Ix(t,e,n,o){if("button"===t.type||"switchbutton"===t.type){const o=t.model=new Ap(t.model),{commandName:i,bindIsOn:r}=t.model,s=e.commands.get(i);n.push(s),o.set({commandName:i}),o.bind("isEnabled").to(s),r&&o.bind("isOn").to(s,"value"),o.set({withText:!0})}o.add(t)}var Px=n(6945),Rx={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(Px.Z,Rx);Px.Z.locals;class zx extends Pi{static get pluginName(){return"TableSelection"}static get requires(){return[nx,nx]}init(){const t=this.editor,e=t.model,n=t.editing.view;this.listenTo(e,"deleteContent",((t,e)=>this._handleDeleteContent(t,e)),{priority:"high"}),this.listenTo(n.document,"insertText",((t,e)=>this._handleInsertTextEvent(t,e)),{priority:"high"}),this._defineSelectionConverter(),this._enablePluginDisabling()}getSelectedTableCells(){const t=this.editor.plugins.get(nx),e=this.editor.model.document.selection,n=t.getSelectedTableCells(e);return 0==n.length?null:n}getSelectionAsFragment(){const t=this.editor.plugins.get(nx),e=this.getSelectedTableCells();return e?this.editor.model.change((n=>{const o=n.createDocumentFragment(),{first:i,last:r}=t.getColumnIndexes(e),{first:s,last:a}=t.getRowIndexes(e),l=e[0].findAncestor("table");let c=a,d=r;if(t.isSelectionRectangular(e)){const t={firstColumn:i,lastColumn:r,firstRow:s,lastRow:a};c=Ky(l,t),d=Zy(l,t)}const h=My(l,{startRow:s,startColumn:i,endRow:c,endColumn:d},n);return n.insert(h,o,0),o})):null}setCellSelection(t,e){const n=this._getCellsToSelect(t,e);this.editor.model.change((t=>{t.setSelection(n.cells.map((e=>t.createRangeOn(e))),{backward:n.backward})}))}getFocusCell(){const t=[...this.editor.model.document.selection.getRanges()].pop().getContainedElement();return t&&t.is("element","tableCell")?t:null}getAnchorCell(){const t=yi(this.editor.model.document.selection.getRanges()).getContainedElement();return t&&t.is("element","tableCell")?t:null}_defineSelectionConverter(){const t=this.editor,e=new Set;t.conversion.for("editingDowncast").add((t=>t.on("selection",((t,n,o)=>{const i=o.writer;!function(t){for(const n of e)t.removeClass("ck-editor__editable_selected",n);e.clear()}(i);const r=this.getSelectedTableCells();if(!r)return;for(const t of r){const n=o.mapper.toViewElement(t);i.addClass("ck-editor__editable_selected",n),e.add(n)}const s=o.mapper.toViewElement(r[r.length-1]);i.setSelection(s,0)}),{priority:"lowest"})))}_enablePluginDisabling(){const t=this.editor;this.on("change:isEnabled",(()=>{if(!this.isEnabled){const e=this.getSelectedTableCells();if(!e)return;t.model.change((n=>{const o=n.createPositionAt(e[0],0),i=t.model.schema.getNearestSelectionRange(o);n.setSelection(i)}))}}))}_handleDeleteContent(t,e){const n=this.editor.plugins.get(nx),o=e[0],i=e[1],r=this.editor.model,s=!i||"backward"==i.direction,a=n.getSelectedTableCells(o);a.length&&(t.stop(),r.change((t=>{const e=a[s?a.length-1:0];r.change((t=>{for(const e of a)r.deleteContent(t.createSelection(e,"in"))}));const n=r.schema.getNearestSelectionRange(t.createPositionAt(e,0));o.is("documentSelection")?t.setSelection(n):o.setTo(n)})))}_handleInsertTextEvent(t,e){const n=this.editor,o=this.getSelectedTableCells();if(!o)return;const i=n.editing.view,r=n.editing.mapper,s=o.map((t=>i.createRangeOn(r.toViewElement(t))));e.selection=i.createSelection(s)}_getCellsToSelect(t,e){const n=this.editor.plugins.get("TableUtils"),o=n.getCellLocation(t),i=n.getCellLocation(e),r=Math.min(o.row,i.row),s=Math.max(o.row,i.row),a=Math.min(o.column,i.column),l=Math.max(o.column,i.column),c=new Array(s-r+1).fill(null).map((()=>[])),d={startRow:r,endRow:s,startColumn:a,endColumn:l};for(const{row:e,cell:n}of new Sy(t.findAncestor("table"),d))c[e-r].push(n);const h=i.row<o.row,u=i.column<o.column;return h&&c.reverse(),u&&c.forEach((t=>t.reverse())),{cells:c.flat(),backward:h||u}}}class Vx extends Pi{static get pluginName(){return"TableClipboard"}static get requires(){return[zx,nx]}init(){const t=this.editor,e=t.editing.view.document;this.listenTo(e,"copy",((t,e)=>this._onCopyCut(t,e))),this.listenTo(e,"cut",((t,e)=>this._onCopyCut(t,e))),this.listenTo(t.model,"insertContent",((t,[e,n])=>this._onInsertContent(t,e,n)),{priority:"high"}),this.decorate("_replaceTableSlotCell")}_onCopyCut(t,e){const n=this.editor.plugins.get(zx);if(!n.getSelectedTableCells())return;if("cut"==t.name&&this.editor.isReadOnly)return;e.preventDefault(),t.stop();const o=this.editor.data,i=this.editor.editing.view.document,r=o.toView(n.getSelectionAsFragment());i.fire("clipboardOutput",{dataTransfer:e.dataTransfer,content:r,method:t.name})}_onInsertContent(t,e,n){if(n&&!n.is("documentSelection"))return;const o=this.editor.model,i=this.editor.plugins.get(nx);let r=this.getTableIfOnlyTableInContent(e,o);if(!r)return;const s=i.getSelectionAffectedTableCells(o.document.selection);s.length?(t.stop(),o.change((t=>{const e={width:i.getColumns(r),height:i.getRows(r)},n=function(t,e,n,o){const i=t[0].findAncestor("table"),r=o.getColumnIndexes(t),s=o.getRowIndexes(t),a={firstColumn:r.first,lastColumn:r.last,firstRow:s.first,lastRow:s.last},l=1===t.length;l&&(a.lastRow+=e.height-1,a.lastColumn+=e.width-1,function(t,e,n,o){const i=o.getColumns(t),r=o.getRows(t);n>i&&o.insertColumns(t,{at:i,columns:n-i});e>r&&o.insertRows(t,{at:r,rows:e-r})}(i,a.lastRow+1,a.lastColumn+1,o));l||!o.isSelectionRectangular(t)?function(t,e,n){const{firstRow:o,lastRow:i,firstColumn:r,lastColumn:s}=e,a={first:o,last:i},l={first:r,last:s};Fx(t,r,a,n),Fx(t,s+1,a,n),Ox(t,o,l,n),Ox(t,i+1,l,n,o)}(i,a,n):(a.lastRow=Ky(i,a),a.lastColumn=Zy(i,a));return a}(s,e,t,i),o=n.lastRow-n.firstRow+1,a=n.lastColumn-n.firstColumn+1,l={startRow:0,startColumn:0,endRow:Math.min(o,e.height)-1,endColumn:Math.min(a,e.width)-1};r=My(r,l,t);const c=s[0].findAncestor("table"),d=this._replaceSelectedCellsWithPasted(r,e,c,n,t);if(this.editor.plugins.get("TableSelection").isEnabled){const e=i.sortRanges(d.map((e=>t.createRangeOn(e))));t.setSelection(e)}else t.setSelection(d[0],0)}))):Gy(r,i)}_replaceSelectedCellsWithPasted(t,e,n,o,i){const{width:r,height:s}=e,a=function(t,e,n){const o=new Array(n).fill(null).map((()=>new Array(e).fill(null)));for(const{column:e,row:n,cell:i}of new Sy(t))o[n][e]=i;return o}(t,r,s),l=[...new Sy(n,{startRow:o.firstRow,endRow:o.lastRow,startColumn:o.firstColumn,endColumn:o.lastColumn,includeAllSlots:!0})],c=[];let d;for(const t of l){const{row:e,column:n}=t;n===o.firstColumn&&(d=t.getPositionBefore());const l=e-o.firstRow,h=n-o.firstColumn,u=a[l%s][h%r],g=u?i.cloneElement(u):null,m=this._replaceTableSlotCell(t,g,d,i);m&&(Wy(m,e,n,o.lastRow,o.lastColumn,i),c.push(m),d=i.createPositionAfter(m))}const h=parseInt(n.getAttribute("headingRows")||"0"),u=parseInt(n.getAttribute("headingColumns")||"0"),g=o.firstRow<h&&h<=o.lastRow,m=o.firstColumn<u&&u<=o.lastColumn;if(g){const t=Ox(n,h,{first:o.firstColumn,last:o.lastColumn},i,o.firstRow);c.push(...t)}if(m){const t=Fx(n,u,{first:o.firstRow,last:o.lastRow},i);c.push(...t)}return c}_replaceTableSlotCell(t,e,n,o){const{cell:i,isAnchor:r}=t;return r&&o.remove(i),e?(o.insert(e,n),e):null}getTableIfOnlyTableInContent(t,e){if(!t.is("documentFragment")&&!t.is("element"))return null;if(t.is("element","table"))return t;if(1==t.childCount&&t.getChild(0).is("element","table"))return t.getChild(0);const n=e.createRangeIn(t);for(const t of n.getItems())if(t.is("element","table")){const o=e.createRange(n.start,e.createPositionBefore(t));if(e.hasContent(o,{ignoreWhitespaces:!0}))return null;const i=e.createRange(e.createPositionAfter(t),n.end);return e.hasContent(i,{ignoreWhitespaces:!0})?null:t}return null}}function Ox(t,e,n,o,i=0){if(e<1)return;return Ly(t,e,i).filter((({column:t,cellWidth:e})=>Nx(t,e,n))).map((({cell:t})=>Hy(t,e,o)))}function Fx(t,e,n,o){if(e<1)return;return jy(t,e).filter((({row:t,cellHeight:e})=>Nx(t,e,n))).map((({cell:t,column:n})=>qy(t,n,e,o)))}function Nx(t,e,n){const o=t+e-1,{first:i,last:r}=n;return t>=i&&t<=r||t<i&&o>=i}class Mx extends Pi{static get pluginName(){return"TableKeyboard"}static get requires(){return[zx,nx]}init(){const t=this.editor.editing.view.document;this.listenTo(t,"arrowKey",((...t)=>this._onArrowKey(...t)),{context:"table"}),this.listenTo(t,"tab",((...t)=>this._handleTabOnSelectedTable(...t)),{context:"figure"}),this.listenTo(t,"tab",((...t)=>this._handleTab(...t)),{context:["th","td"]})}_handleTabOnSelectedTable(t,e){const n=this.editor,o=n.model.document.selection.getSelectedElement();o&&o.is("element","table")&&(e.preventDefault(),e.stopPropagation(),t.stop(),n.model.change((t=>{t.setSelection(t.createRangeIn(o.getChild(0).getChild(0)))})))}_handleTab(t,e){const n=this.editor,o=this.editor.plugins.get(nx),i=this.editor.plugins.get("TableSelection"),r=n.model.document.selection,s=!e.shiftKey;let a=o.getTableCellsContainingSelection(r)[0];if(a||(a=i.getFocusCell()),!a)return;e.preventDefault(),e.stopPropagation(),t.stop();const l=a.parent,c=l.parent,d=c.getChildIndex(l),h=l.getChildIndex(a),u=0===h;if(!s&&u&&0===d)return void n.model.change((t=>{t.setSelection(t.createRangeOn(c))}));const g=h===l.childCount-1,m=d===o.getRows(c)-1;if(s&&m&&g&&(n.execute("insertTableRowBelow"),d===o.getRows(c)-1))return void n.model.change((t=>{t.setSelection(t.createRangeOn(c))}));let p;if(s&&g){const t=c.getChild(d+1);p=t.getChild(0)}else if(!s&&u){const t=c.getChild(d-1);p=t.getChild(t.childCount-1)}else p=l.getChild(h+(s?1:-1));n.model.change((t=>{t.setSelection(t.createRangeIn(p))}))}_onArrowKey(t,e){const n=this.editor,o=bi(e.keyCode,n.locale.contentLanguageDirection);this._handleArrowKeys(o,e.shiftKey)&&(e.preventDefault(),e.stopPropagation(),t.stop())}_handleArrowKeys(t,e){const n=this.editor.plugins.get(nx),o=this.editor.plugins.get("TableSelection"),i=this.editor.model,r=i.document.selection,s=["right","down"].includes(t),a=n.getSelectedTableCells(r);if(a.length){let n;return n=e?o.getFocusCell():s?a[a.length-1]:a[0],this._navigateFromCellInDirection(n,t,e),!0}const l=r.focus.findAncestor("tableCell");if(!l)return!1;if(!r.isCollapsed)if(e){if(r.isBackward==s&&!r.containsEntireContent(l))return!1}else{const t=r.getSelectedElement();if(!t||!i.schema.isObject(t))return!1}return!!this._isSelectionAtCellEdge(r,l,s)&&(this._navigateFromCellInDirection(l,t,e),!0)}_isSelectionAtCellEdge(t,e,n){const o=this.editor.model,i=this.editor.model.schema,r=n?t.getLastPosition():t.getFirstPosition();if(!i.getLimitElement(r).is("element","tableCell")){return o.createPositionAt(e,n?"end":0).isTouching(r)}const s=o.createSelection(r);return o.modifySelection(s,{direction:n?"forward":"backward"}),r.isEqual(s.focus)}_navigateFromCellInDirection(t,e,n=!1){const o=this.editor.model,i=t.findAncestor("table"),r=[...new Sy(i,{includeAllSlots:!0})],{row:s,column:a}=r[r.length-1],l=r.find((({cell:e})=>e==t));let{row:c,column:d}=l;switch(e){case"left":d--;break;case"up":c--;break;case"right":d+=l.cellWidth;break;case"down":c+=l.cellHeight}if(c<0||c>s||d<0&&c<=0||d>a&&c>=s)return void o.change((t=>{t.setSelection(t.createRangeOn(i))}));d<0?(d=n?0:a,c--):d>a&&(d=n?a:0,c++);const h=r.find((t=>t.row==c&&t.column==d)).cell,u=["right","down"].includes(e),g=this.editor.plugins.get("TableSelection");if(n&&g.isEnabled){const e=g.getAnchorCell()||t;g.setCellSelection(e,h)}else{const t=o.createPositionAt(h,u?0:"end");o.change((e=>{e.setSelection(t)}))}}}class Lx extends wa{constructor(){super(...arguments),this.domEventType=["mousemove","mouseleave"]}onDomEvent(t){this.fire(t.type,t)}}class Hx extends Pi{static get pluginName(){return"TableMouse"}static get requires(){return[zx,nx]}init(){this.editor.editing.view.addObserver(Lx),this._enableShiftClickSelection(),this._enableMouseDragSelection()}_enableShiftClickSelection(){const t=this.editor,e=t.plugins.get(nx);let n=!1;const o=t.plugins.get(zx);this.listenTo(t.editing.view.document,"mousedown",((i,r)=>{const s=t.model.document.selection;if(!this.isEnabled||!o.isEnabled)return;if(!r.domEvent.shiftKey)return;const a=o.getAnchorCell()||e.getTableCellsContainingSelection(s)[0];if(!a)return;const l=this._getModelTableCellFromDomEvent(r);l&&jx(a,l)&&(n=!0,o.setCellSelection(a,l),r.preventDefault())})),this.listenTo(t.editing.view.document,"mouseup",(()=>{n=!1})),this.listenTo(t.editing.view.document,"selectionChange",(t=>{n&&t.stop()}),{priority:"highest"})}_enableMouseDragSelection(){const t=this.editor;let e,n,o=!1,i=!1;const r=t.plugins.get(zx);this.listenTo(t.editing.view.document,"mousedown",((t,n)=>{this.isEnabled&&r.isEnabled&&(n.domEvent.shiftKey||n.domEvent.ctrlKey||n.domEvent.altKey||(e=this._getModelTableCellFromDomEvent(n)))})),this.listenTo(t.editing.view.document,"mousemove",((t,s)=>{if(!s.domEvent.buttons)return;if(!e)return;const a=this._getModelTableCellFromDomEvent(s);a&&jx(e,a)&&(n=a,o||n==e||(o=!0)),o&&(i=!0,r.setCellSelection(e,n),s.preventDefault())})),this.listenTo(t.editing.view.document,"mouseup",(()=>{o=!1,i=!1,e=null,n=null})),this.listenTo(t.editing.view.document,"selectionChange",(t=>{i&&t.stop()}),{priority:"highest"})}_getModelTableCellFromDomEvent(t){const e=t.target,n=this.editor.editing.view.createPositionAt(e,0);return this.editor.editing.mapper.toModelPosition(n).parent.findAncestor("tableCell",{includeSelf:!0})}}function jx(t,e){return t.parent.parent==e.parent.parent}var qx=n(6306),Wx={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(qx.Z,Wx);qx.Z.locals;function Ux(t){const e=t.getSelectedElement();return e&&Gx(e)?e:null}function $x(t){const e=t.getFirstPosition();if(!e)return null;let n=e.parent;for(;n;){if(n.is("element")&&Gx(n))return n;n=n.parent}return null}function Gx(t){return!!t.getCustomProperty("table")&&Dk(t)}class Kx extends zi{constructor(t,e,n){super(t),this.attributeName=e,this._defaultValue=n}refresh(){const t=this.editor.model.document.selection.getFirstPosition().findAncestor("table");this.isEnabled=!!t,this.value=this._getValue(t)}execute(t={}){const e=this.editor.model,n=e.document.selection,{value:o,batch:i}=t,r=n.getFirstPosition().findAncestor("table"),s=this._getValueToSet(o);e.enqueueChange(i,(t=>{s?t.setAttribute(this.attributeName,s,r):t.removeAttribute(this.attributeName,r)}))}_getValue(t){if(!t)return;const e=t.getAttribute(this.attributeName);return e!==this._defaultValue?e:void 0}_getValueToSet(t){if(t!==this._defaultValue)return t}}class Zx extends Kx{constructor(t,e){super(t,"tableBackgroundColor",e)}}var Jx=Object.defineProperty,Yx=Object.getOwnPropertySymbols,Qx=Object.prototype.hasOwnProperty,Xx=Object.prototype.propertyIsEnumerable,tE=(t,e,n)=>e in t?Jx(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;function eE(t){if(!t||!V(t))return t;const{top:e,right:n,bottom:o,left:i}=t;return e==n&&n==o&&o==i?e:void 0}function nE(t,e){const n=parseFloat(t);return Number.isNaN(n)||String(n)!==String(t)?t:`${n}${e}`}function oE(t,e={}){const n=((t,e)=>{for(var n in e||(e={}))Qx.call(e,n)&&tE(t,n,e[n]);if(Yx)for(var n of Yx(e))Xx.call(e,n)&&tE(t,n,e[n]);return t})({borderStyle:"none",borderWidth:"",borderColor:"",backgroundColor:"",width:"",height:""},t);return e.includeAlignmentProperty&&!n.alignment&&(n.alignment="center"),e.includePaddingProperty&&!n.padding&&(n.padding=""),e.includeVerticalAlignmentProperty&&!n.verticalAlignment&&(n.verticalAlignment="middle"),e.includeHorizontalAlignmentProperty&&!n.horizontalAlignment&&(n.horizontalAlignment=e.isRightToLeftContent?"right":"left"),n}class iE extends Kx{constructor(t,e){super(t,"tableBorderColor",e)}_getValue(t){if(!t)return;const e=eE(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class rE extends Kx{constructor(t,e){super(t,"tableBorderStyle",e)}_getValue(t){if(!t)return;const e=eE(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class sE extends Kx{constructor(t,e){super(t,"tableBorderWidth",e)}_getValue(t){if(!t)return;const e=eE(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}_getValueToSet(t){const e=nE(t,"px");if(e!==this._defaultValue)return e}}class aE extends Kx{constructor(t,e){super(t,"tableWidth",e)}_getValueToSet(t){if((t=nE(t,"px"))!==this._defaultValue)return t}}class lE extends Kx{constructor(t,e){super(t,"tableHeight",e)}_getValueToSet(t){if((t=nE(t,"px"))!==this._defaultValue)return t}}class cE extends Kx{constructor(t,e){super(t,"tableAlignment",e)}}var dE=Object.defineProperty,hE=Object.getOwnPropertySymbols,uE=Object.prototype.hasOwnProperty,gE=Object.prototype.propertyIsEnumerable,mE=(t,e,n)=>e in t?dE(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n,pE=(t,e)=>{for(var n in e||(e={}))uE.call(e,n)&&mE(t,n,e[n]);if(hE)for(var n of hE(e))gE.call(e,n)&&mE(t,n,e[n]);return t};const fE=/^(left|center|right)$/,bE=/^(left|none|right)$/;class kE extends Pi{static get pluginName(){return"TablePropertiesEditing"}static get requires(){return[xx]}init(){const t=this.editor,e=t.model.schema,n=t.conversion;t.config.define("table.tableProperties.defaultProperties",{});const o=oE(t.config.get("table.tableProperties.defaultProperties"),{includeAlignmentProperty:!0});t.data.addStyleProcessorRules(Ru),function(t,e,n){const o={width:"tableBorderWidth",color:"tableBorderColor",style:"tableBorderStyle"};t.extend("table",{allowAttributes:Object.values(o)}),uy(e,"table",o,n),my(e,{modelAttribute:o.color,styleName:"border-color"}),my(e,{modelAttribute:o.style,styleName:"border-style"}),my(e,{modelAttribute:o.width,styleName:"border-width"})}(e,n,{color:o.borderColor,style:o.borderStyle,width:o.borderWidth}),t.commands.add("tableBorderColor",new iE(t,o.borderColor)),t.commands.add("tableBorderStyle",new rE(t,o.borderStyle)),t.commands.add("tableBorderWidth",new sE(t,o.borderWidth)),function(t,e,n){t.extend("table",{allowAttributes:["tableAlignment"]}),e.for("downcast").attributeToAttribute({model:{name:"table",key:"tableAlignment"},view:t=>({key:"style",value:{float:"center"===t?"none":t}}),converterPriority:"high"}),e.for("upcast").attributeToAttribute({view:{name:/^(table|figure)$/,styles:{float:bE}},model:{key:"tableAlignment",value:t=>{let e=t.getStyle("float");return"none"===e&&(e="center"),e===n?null:e}}}).attributeToAttribute({view:{attributes:{align:fE}},model:{name:"table",key:"tableAlignment",value:t=>{const e=t.getAttribute("align");return e===n?null:e}}})}(e,n,o.alignment),t.commands.add("tableAlignment",new cE(t,o.alignment)),wE(e,n,{modelAttribute:"tableWidth",styleName:"width",defaultValue:o.width}),t.commands.add("tableWidth",new aE(t,o.width)),wE(e,n,{modelAttribute:"tableHeight",styleName:"height",defaultValue:o.height}),t.commands.add("tableHeight",new lE(t,o.height)),t.data.addStyleProcessorRules(Pu),function(t,e,n){const{modelAttribute:o}=n;t.extend("table",{allowAttributes:[o]}),hy(e,pE({viewElement:"table"},n)),my(e,n)}(e,n,{modelAttribute:"tableBackgroundColor",styleName:"background-color",defaultValue:o.backgroundColor}),t.commands.add("tableBackgroundColor",new Zx(t,o.backgroundColor))}}function wE(t,e,n){const{modelAttribute:o}=n;t.extend("table",{allowAttributes:[o]}),hy(e,pE({viewElement:/^(table|figure)$/,shouldUpcast:t=>!("table"==t.name&&"figure"==t.parent.name)},n)),gy(e,pE({modelElement:"table"},n))}var _E=n(7368),AE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(_E.Z,AE);_E.Z.locals;class CE extends ig{constructor(t,e){super(t),this.set("value",""),this.set("isReadOnly",!1),this.set("isFocused",!1),this.set("isEmpty",!0),this.options=e,this.focusTracker=new xi,this._focusables=new eg,this.dropdownView=this._createDropdownView(),this.inputView=this._createInputTextView(),this.keystrokes=new Ei,this._stillTyping=!1,this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-input-color"]},children:[this.dropdownView,this.inputView]}),this.on("change:value",((t,e,n)=>this._setInputValue(n)))}render(){super.render(),this.keystrokes.listenTo(this.dropdownView.panelView.element)}focus(){this.inputView.focus()}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}_createDropdownView(){const t=this.locale,e=t.t,n=this.bindTemplate,o=this._createColorGrid(t),i=ym(t),r=new ig,s=this._createRemoveColorButton();return r.setTemplate({tag:"span",attributes:{class:["ck","ck-input-color__button__preview"],style:{backgroundColor:n.to("value")}},children:[{tag:"span",attributes:{class:["ck","ck-input-color__button__preview__no-color-indicator",n.if("value","ck-hidden",(t=>""!=t))]}}]}),i.buttonView.extendTemplate({attributes:{class:"ck-input-color__button"}}),i.buttonView.children.add(r),i.buttonView.label=e("Color picker"),i.buttonView.tooltip=!0,i.panelPosition="rtl"===t.uiLanguageDirection?"se":"sw",i.panelView.children.add(s),i.panelView.children.add(o),i.bind("isEnabled").to(this,"isReadOnly",(t=>!t)),this._focusables.add(s),this._focusables.add(o),this.focusTracker.add(s.element),this.focusTracker.add(o.element),i}_createInputTextView(){const t=this.locale,e=new up(t);return e.extendTemplate({on:{blur:e.bindTemplate.to("blur")}}),e.value=this.value,e.bind("isReadOnly","hasError").to(this),this.bind("isFocused","isEmpty").to(e),e.on("input",(()=>{const t=e.element.value,n=this.options.colorDefinitions.find((e=>t===e.label));this._stillTyping=!0,this.value=n&&n.color||t})),e.on("blur",(()=>{this._stillTyping=!1,this._setInputValue(e.element.value)})),e.delegate("input").to(this),e}_createRemoveColorButton(){const t=this.locale,e=t.t,n=new Rg(t),o=this.options.defaultColorValue||"",i=e(o?"Restore default":"Remove color");return n.class="ck-input-color__remove-color",n.withText=!0,n.icon=Ju.eraser,n.label=i,n.on("execute",(()=>{this.value=o,this.dropdownView.isOpen=!1,this.fire("input")})),n}_createColorGrid(t){const e=new qg(t,{colorDefinitions:this.options.colorDefinitions,columns:this.options.columns});return e.on("execute",((t,e)=>{this.value=e.value,this.dropdownView.isOpen=!1,this.fire("input")})),e.bind("selectedColor").to(this,"value"),e}_setInputValue(t){if(!this._stillTyping){const e=vE(t),n=this.options.colorDefinitions.find((t=>e===vE(t.color)));this.inputView.value=n?n.label:t||""}}}function vE(t){return t.replace(/([(,])\s+/g,"$1").replace(/^\s+|\s+(?=[),\s]|$)/g,"").replace(/,|\s/g," ")}const yE=t=>""===t;function xE(t){return{none:t("None"),solid:t("Solid"),dotted:t("Dotted"),dashed:t("Dashed"),double:t("Double"),groove:t("Groove"),ridge:t("Ridge"),inset:t("Inset"),outset:t("Outset")}}function EE(t){return t('The color is invalid. Try "#FF0000" or "rgb(255,0,0)" or "red".')}function TE(t){return t('The value is invalid. Try "10px" or "2em" or simply "2".')}function DE(t){return t=t.trim(),yE(t)||uu(t)}function SE(t){return t=t.trim(),yE(t)||VE(t)||fu(t)||ku(t)}function BE(t){return t=t.trim(),yE(t)||VE(t)||fu(t)}function IE(t,e){const n=new vi,o=xE(t.t);for(const i in o){const r={type:"button",model:new Ap({_borderStyleValue:i,label:o[i],withText:!0})};"none"===i?r.model.bind("isOn").to(t,"borderStyle",(t=>"none"===e?!t:t===i)):r.model.bind("isOn").to(t,"borderStyle",(t=>t===i)),n.add(r)}return n}function PE(t){const{view:e,icons:n,toolbar:o,labels:i,propertyName:r,nameToValue:s,defaultValue:a}=t;for(const t in i){const l=new Rg(e.locale);l.set({label:i[t],icon:n[t],tooltip:i[t]});const c=s?s(t):t;l.bind("isOn").to(e,r,(t=>{let e=t;return""===t&&a&&(e=a),c===e})),l.on("execute",(()=>{e[r]=c})),o.items.add(l)}}const RE=[{color:"hsl(0, 0%, 0%)",label:"Black"},{color:"hsl(0, 0%, 30%)",label:"Dim grey"},{color:"hsl(0, 0%, 60%)",label:"Grey"},{color:"hsl(0, 0%, 90%)",label:"Light grey"},{color:"hsl(0, 0%, 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e=parseFloat(t);return!Number.isNaN(e)&&t===String(e)}var OE=n(9247),FE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(OE.Z,FE);OE.Z.locals;class NE extends ig{constructor(t,e={}){super(t);const n=this.bindTemplate;this.set("class",e.class||null),this.children=this.createCollection(),e.children&&e.children.forEach((t=>this.children.add(t))),this.set("_role",null),this.set("_ariaLabelledBy",null),e.labelView&&this.set({_role:"group",_ariaLabelledBy:e.labelView.id}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-form__row",n.to("class")],role:n.to("_role"),"aria-labelledby":n.to("_ariaLabelledBy")},children:this.children})}}var ME=n(4070),LE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(ME.Z,LE);ME.Z.locals;var HE=n(6237),jE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(HE.Z,jE);HE.Z.locals;var qE=n(7341),WE={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(qE.Z,WE);qE.Z.locals;const UE={left:Ju.objectLeft,center:Ju.objectCenter,right:Ju.objectRight};class $E extends ig{constructor(t,e){super(t),this.set({borderStyle:"",borderWidth:"",borderColor:"",backgroundColor:"",width:"",height:"",alignment:""}),this.options=e;const{borderStyleDropdown:n,borderWidthInput:o,borderColorInput:i,borderRowLabel:r}=this._createBorderFields(),{backgroundRowLabel:s,backgroundInput:a}=this._createBackgroundFields(),{widthInput:l,operatorLabel:c,heightInput:d,dimensionsLabel:h}=this._createDimensionFields(),{alignmentToolbar:u,alignmentLabel:g}=this._createAlignmentFields();this.focusTracker=new xi,this.keystrokes=new Ei,this.children=this.createCollection(),this.borderStyleDropdown=n,this.borderWidthInput=o,this.borderColorInput=i,this.backgroundInput=a,this.widthInput=l,this.heightInput=d,this.alignmentToolbar=u;const{saveButtonView:m,cancelButtonView:p}=this._createActionButtons();this.saveButtonView=m,this.cancelButtonView=p,this._focusables=new eg,this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.children.add(new lp(t,{label:this.t("Table properties")})),this.children.add(new NE(t,{labelView:r,children:[r,n,i,o],class:"ck-table-form__border-row"})),this.children.add(new NE(t,{labelView:s,children:[s,a],class:"ck-table-form__background-row"})),this.children.add(new NE(t,{children:[new NE(t,{labelView:h,children:[h,l,c,d],class:"ck-table-form__dimensions-row"}),new NE(t,{labelView:g,children:[g,u],class:"ck-table-properties-form__alignment-row"})]})),this.children.add(new NE(t,{children:[this.saveButtonView,this.cancelButtonView],class:"ck-table-form__action-row"})),this.setTemplate({tag:"form",attributes:{class:["ck","ck-form","ck-table-form","ck-table-properties-form"],tabindex:"-1"},children:this.children})}render(){super.render(),Xu({view:this}),[this.borderStyleDropdown,this.borderColorInput,this.borderColorInput.fieldView.dropdownView.buttonView,this.borderWidthInput,this.backgroundInput,this.backgroundInput.fieldView.dropdownView.buttonView,this.widthInput,this.heightInput,this.alignmentToolbar,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createBorderFields(){const t=this.options.defaultTableProperties,e={style:t.borderStyle,width:t.borderWidth,color:t.borderColor},n=zE({colorConfig:this.options.borderColors,columns:5,defaultColorValue:e.color}),o=this.locale,i=this.t,r=new op(o);r.text=i("Border");const s=xE(i),a=new fp(o,wp);a.set({label:i("Style"),class:"ck-table-form__border-style"}),a.fieldView.buttonView.set({isOn:!1,withText:!0,tooltip:i("Style")}),a.fieldView.buttonView.bind("label").to(this,"borderStyle",(t=>s[t||"none"])),a.fieldView.on("execute",(t=>{this.borderStyle=t.source._borderStyleValue})),a.bind("isEmpty").to(this,"borderStyle",(t=>!t)),Tm(a.fieldView,IE(this,e.style));const l=new fp(o,bp);l.set({label:i("Width"),class:"ck-table-form__border-width"}),l.fieldView.bind("value").to(this,"borderWidth"),l.bind("isEnabled").to(this,"borderStyle",GE),l.fieldView.on("input",(()=>{this.borderWidth=l.fieldView.element.value}));const c=new fp(o,n);return c.set({label:i("Color"),class:"ck-table-form__border-color"}),c.fieldView.bind("value").to(this,"borderColor"),c.bind("isEnabled").to(this,"borderStyle",GE),c.fieldView.on("input",(()=>{this.borderColor=c.fieldView.value})),this.on("change:borderStyle",((t,n,o,i)=>{GE(o)||(this.borderColor="",this.borderWidth=""),GE(i)||(this.borderColor=e.color,this.borderWidth=e.width)})),{borderRowLabel:r,borderStyleDropdown:a,borderColorInput:c,borderWidthInput:l}}_createBackgroundFields(){const t=this.locale,e=this.t,n=new op(t);n.text=e("Background");const o=zE({colorConfig:this.options.backgroundColors,columns:5,defaultColorValue:this.options.defaultTableProperties.backgroundColor}),i=new fp(t,o);return i.set({label:e("Color"),class:"ck-table-properties-form__background"}),i.fieldView.bind("value").to(this,"backgroundColor"),i.fieldView.on("input",(()=>{this.backgroundColor=i.fieldView.value})),{backgroundRowLabel:n,backgroundInput:i}}_createDimensionFields(){const t=this.locale,e=this.t,n=new op(t);n.text=e("Dimensions");const o=new fp(t,bp);o.set({label:e("Width"),class:"ck-table-form__dimensions-row__width"}),o.fieldView.bind("value").to(this,"width"),o.fieldView.on("input",(()=>{this.width=o.fieldView.element.value}));const i=new ig(t);i.setTemplate({tag:"span",attributes:{class:["ck-table-form__dimension-operator"]},children:[{text:"×"}]});const r=new fp(t,bp);return r.set({label:e("Height"),class:"ck-table-form__dimensions-row__height"}),r.fieldView.bind("value").to(this,"height"),r.fieldView.on("input",(()=>{this.height=r.fieldView.element.value})),{dimensionsLabel:n,widthInput:o,operatorLabel:i,heightInput:r}}_createAlignmentFields(){const t=this.locale,e=this.t,n=new op(t);n.text=e("Alignment");const o=new hm(t);return o.set({isCompact:!0,ariaLabel:e("Table alignment toolbar")}),PE({view:this,icons:UE,toolbar:o,labels:this._alignmentLabels,propertyName:"alignment",defaultValue:this.options.defaultTableProperties.alignment}),{alignmentLabel:n,alignmentToolbar:o}}_createActionButtons(){const t=this.locale,e=this.t,n=new Rg(t),o=new Rg(t),i=[this.borderWidthInput,this.borderColorInput,this.backgroundInput,this.widthInput,this.heightInput];return n.set({label:e("Save"),icon:Ju.check,class:"ck-button-save",type:"submit",withText:!0}),n.bind("isEnabled").toMany(i,"errorText",((...t)=>t.every((t=>!t)))),o.set({label:e("Cancel"),icon:Ju.cancel,class:"ck-button-cancel",withText:!0}),o.delegate("execute").to(this,"cancel"),{saveButtonView:n,cancelButtonView:o}}get _alignmentLabels(){const t=this.locale,e=this.t,n=e("Align table to the left"),o=e("Center table"),i=e("Align table to the right");return"rtl"===t.uiLanguageDirection?{right:i,center:o,left:n}:{left:n,center:o,right:i}}}function GE(t){return"none"!==t}const KE=Hm.defaultPositions,ZE=[KE.northArrowSouth,KE.northArrowSouthWest,KE.northArrowSouthEast,KE.southArrowNorth,KE.southArrowNorthWest,KE.southArrowNorthEast,KE.viewportStickyNorth];function JE(t,e){const n=t.plugins.get("ContextualBalloon");if($x(t.editing.view.document.selection)){let o;o="cell"===e?QE(t):YE(t),n.updatePosition(o)}}function YE(t){const e=t.model.document.selection.getFirstPosition().findAncestor("table"),n=t.editing.mapper.toViewElement(e);return{target:t.editing.view.domConverter.mapViewToDom(n),positions:ZE}}function QE(t){const e=t.editing.mapper,n=t.editing.view.domConverter,o=t.model.document.selection;if(o.rangeCount>1)return{target:()=>function(t,e){const n=e.editing.mapper,o=e.editing.view.domConverter,i=Array.from(t).map((t=>{const e=XE(t.start),i=n.toViewElement(e);return new Fo(o.mapViewToDom(i))}));return Fo.getBoundingRect(i)}(o.getRanges(),t),positions:ZE};const i=XE(o.getFirstPosition()),r=e.toViewElement(i);return{target:n.mapViewToDom(r),positions:ZE}}function XE(t){return t.nodeAfter&&t.nodeAfter.is("element","tableCell")?t.nodeAfter:t.findAncestor("tableCell")}const tT={borderStyle:"tableBorderStyle",borderColor:"tableBorderColor",borderWidth:"tableBorderWidth",backgroundColor:"tableBackgroundColor",width:"tableWidth",height:"tableHeight",alignment:"tableAlignment"};class eT extends Pi{constructor(t){super(t),this.view=null,t.config.define("table.tableProperties",{borderColors:RE,backgroundColors:RE})}static get requires(){return[Dp]}static get pluginName(){return"TablePropertiesUI"}init(){const t=this.editor,e=t.t;this._defaultTableProperties=oE(t.config.get("table.tableProperties.defaultProperties"),{includeAlignmentProperty:!0}),this._balloon=t.plugins.get(Dp),t.ui.componentFactory.add("tableProperties",(n=>{const o=new Rg(n);o.set({label:e("Table properties"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M8 2v5h4V2h1v5h5v1h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5H7v-5H2v-1h5V8H2V7h5V2h1zm4 6H8v4h4V8z" opacity=".6"/><path d="m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM17 1a2 2 0 0 1 2 2v9.475l-.85-.124-.857-1.736a2.048 2.048 0 0 0-.292-.44L17 3H3v14h7.808l.402.392L10.935 19H3a2 2 0 0 1-2-2V3a2 2 0 0 1 2-2h14z"/></svg>',tooltip:!0}),this.listenTo(o,"execute",(()=>this._showView()));const i=Object.values(tT).map((e=>t.commands.get(e)));return o.bind("isEnabled").toMany(i,"isEnabled",((...t)=>t.some((t=>t)))),o}))}destroy(){super.destroy(),this.view&&this.view.destroy()}_createPropertiesView(){const t=this.editor,e=t.config.get("table.tableProperties"),n=Ng(e.borderColors),o=Fg(t.locale,n),i=Ng(e.backgroundColors),r=Fg(t.locale,i),s=new $E(t.locale,{borderColors:o,backgroundColors:r,defaultTableProperties:this._defaultTableProperties}),a=t.t;s.render(),this.listenTo(s,"submit",(()=>{this._hideView()})),this.listenTo(s,"cancel",(()=>{this._undoStepBatch.operations.length&&t.execute("undo",this._undoStepBatch),this._hideView()})),s.keystrokes.set("Esc",((t,e)=>{this._hideView(),e()})),Yu({emitter:s,activator:()=>this._isViewInBalloon,contextElements:[this._balloon.view.element],callback:()=>this._hideView()});const l=EE(a),c=TE(a);return s.on("change:borderStyle",this._getPropertyChangeCallback("tableBorderStyle")),s.on("change:borderColor",this._getValidatedPropertyChangeCallback({viewField:s.borderColorInput,commandName:"tableBorderColor",errorText:l,validator:DE})),s.on("change:borderWidth",this._getValidatedPropertyChangeCallback({viewField:s.borderWidthInput,commandName:"tableBorderWidth",errorText:c,validator:BE})),s.on("change:backgroundColor",this._getValidatedPropertyChangeCallback({viewField:s.backgroundInput,commandName:"tableBackgroundColor",errorText:l,validator:DE})),s.on("change:width",this._getValidatedPropertyChangeCallback({viewField:s.widthInput,commandName:"tableWidth",errorText:c,validator:SE})),s.on("change:height",this._getValidatedPropertyChangeCallback({viewField:s.heightInput,commandName:"tableHeight",errorText:c,validator:SE})),s.on("change:alignment",this._getPropertyChangeCallback("tableAlignment")),s}_fillViewFormFromCommandValues(){const t=this.editor.commands,e=t.get("tableBorderStyle");Object.entries(tT).map((([e,n])=>{const o=e,i=this._defaultTableProperties[o]||"";return[o,t.get(n).value||i]})).forEach((([t,n])=>{("borderColor"!==t&&"borderWidth"!==t||"none"!==e.value)&&this.view.set(t,n)})),this._isReady=!0}_showView(){const t=this.editor;this.view||(this.view=this._createPropertiesView()),this.listenTo(t.ui,"update",(()=>{this._updateView()})),this._fillViewFormFromCommandValues(),this._balloon.add({view:this.view,position:YE(t)}),this._undoStepBatch=t.model.createBatch(),this.view.focus()}_hideView(){const t=this.editor;this.stopListening(t.ui,"update"),this._isReady=!1,this.view.saveButtonView.focus(),this._balloon.remove(this.view),this.editor.editing.view.focus()}_updateView(){const t=this.editor;$x(t.editing.view.document.selection)?this._isViewVisible&&JE(t,"table"):this._hideView()}get _isViewVisible(){return!!this.view&&this._balloon.visibleView===this.view}get _isViewInBalloon(){return!!this.view&&this._balloon.hasView(this.view)}_getPropertyChangeCallback(t){return(e,n,o)=>{this._isReady&&this.editor.execute(t,{value:o,batch:this._undoStepBatch})}}_getValidatedPropertyChangeCallback(t){const{commandName:e,viewField:n,validator:o,errorText:i}=t,r=Ra((()=>{n.errorText=i}),500);return(t,i,s)=>{r.cancel(),this._isReady&&(o(s)?(this.editor.execute(e,{value:s,batch:this._undoStepBatch}),n.errorText=null):r())}}}var nT=n(5087),oT={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(nT.Z,oT);nT.Z.locals;const iT={left:Ju.alignLeft,center:Ju.alignCenter,right:Ju.alignRight,justify:Ju.alignJustify,top:Ju.alignTop,middle:Ju.alignMiddle,bottom:Ju.alignBottom};class rT extends ig{constructor(t,e){super(t),this.set({borderStyle:"",borderWidth:"",borderColor:"",padding:"",backgroundColor:"",width:"",height:"",horizontalAlignment:"",verticalAlignment:""}),this.options=e;const{borderStyleDropdown:n,borderWidthInput:o,borderColorInput:i,borderRowLabel:r}=this._createBorderFields(),{backgroundRowLabel:s,backgroundInput:a}=this._createBackgroundFields(),{widthInput:l,operatorLabel:c,heightInput:d,dimensionsLabel:h}=this._createDimensionFields(),{horizontalAlignmentToolbar:u,verticalAlignmentToolbar:g,alignmentLabel:m}=this._createAlignmentFields();this.focusTracker=new xi,this.keystrokes=new Ei,this.children=this.createCollection(),this.borderStyleDropdown=n,this.borderWidthInput=o,this.borderColorInput=i,this.backgroundInput=a,this.paddingInput=this._createPaddingField(),this.widthInput=l,this.heightInput=d,this.horizontalAlignmentToolbar=u,this.verticalAlignmentToolbar=g;const{saveButtonView:p,cancelButtonView:f}=this._createActionButtons();this.saveButtonView=p,this.cancelButtonView=f,this._focusables=new eg,this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.children.add(new lp(t,{label:this.t("Cell properties")})),this.children.add(new NE(t,{labelView:r,children:[r,n,i,o],class:"ck-table-form__border-row"})),this.children.add(new NE(t,{labelView:s,children:[s,a],class:"ck-table-form__background-row"})),this.children.add(new NE(t,{children:[new NE(t,{labelView:h,children:[h,l,c,d],class:"ck-table-form__dimensions-row"}),new NE(t,{children:[this.paddingInput],class:"ck-table-cell-properties-form__padding-row"})]})),this.children.add(new NE(t,{labelView:m,children:[m,u,g],class:"ck-table-cell-properties-form__alignment-row"})),this.children.add(new NE(t,{children:[this.saveButtonView,this.cancelButtonView],class:"ck-table-form__action-row"})),this.setTemplate({tag:"form",attributes:{class:["ck","ck-form","ck-table-form","ck-table-cell-properties-form"],tabindex:"-1"},children:this.children})}render(){super.render(),Xu({view:this}),[this.borderStyleDropdown,this.borderColorInput,this.borderColorInput.fieldView.dropdownView.buttonView,this.borderWidthInput,this.backgroundInput,this.backgroundInput.fieldView.dropdownView.buttonView,this.widthInput,this.heightInput,this.paddingInput,this.horizontalAlignmentToolbar,this.verticalAlignmentToolbar,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}focus(){this._focusCycler.focusFirst()}_createBorderFields(){const t=this.options.defaultTableCellProperties,e={style:t.borderStyle,width:t.borderWidth,color:t.borderColor},n=zE({colorConfig:this.options.borderColors,columns:5,defaultColorValue:e.color}),o=this.locale,i=this.t,r=new op(o);r.text=i("Border");const s=xE(i),a=new fp(o,wp);a.set({label:i("Style"),class:"ck-table-form__border-style"}),a.fieldView.buttonView.set({isOn:!1,withText:!0,tooltip:i("Style")}),a.fieldView.buttonView.bind("label").to(this,"borderStyle",(t=>s[t||"none"])),a.fieldView.on("execute",(t=>{this.borderStyle=t.source._borderStyleValue})),a.bind("isEmpty").to(this,"borderStyle",(t=>!t)),Tm(a.fieldView,IE(this,e.style));const l=new fp(o,bp);l.set({label:i("Width"),class:"ck-table-form__border-width"}),l.fieldView.bind("value").to(this,"borderWidth"),l.bind("isEnabled").to(this,"borderStyle",sT),l.fieldView.on("input",(()=>{this.borderWidth=l.fieldView.element.value}));const c=new fp(o,n);return c.set({label:i("Color"),class:"ck-table-form__border-color"}),c.fieldView.bind("value").to(this,"borderColor"),c.bind("isEnabled").to(this,"borderStyle",sT),c.fieldView.on("input",(()=>{this.borderColor=c.fieldView.value})),this.on("change:borderStyle",((t,n,o,i)=>{sT(o)||(this.borderColor="",this.borderWidth=""),sT(i)||(this.borderColor=e.color,this.borderWidth=e.width)})),{borderRowLabel:r,borderStyleDropdown:a,borderColorInput:c,borderWidthInput:l}}_createBackgroundFields(){const t=this.locale,e=this.t,n=new op(t);n.text=e("Background");const o=zE({colorConfig:this.options.backgroundColors,columns:5,defaultColorValue:this.options.defaultTableCellProperties.backgroundColor}),i=new fp(t,o);return i.set({label:e("Color"),class:"ck-table-cell-properties-form__background"}),i.fieldView.bind("value").to(this,"backgroundColor"),i.fieldView.on("input",(()=>{this.backgroundColor=i.fieldView.value})),{backgroundRowLabel:n,backgroundInput:i}}_createDimensionFields(){const t=this.locale,e=this.t,n=new op(t);n.text=e("Dimensions");const o=new fp(t,bp);o.set({label:e("Width"),class:"ck-table-form__dimensions-row__width"}),o.fieldView.bind("value").to(this,"width"),o.fieldView.on("input",(()=>{this.width=o.fieldView.element.value}));const i=new ig(t);i.setTemplate({tag:"span",attributes:{class:["ck-table-form__dimension-operator"]},children:[{text:"×"}]});const r=new fp(t,bp);return r.set({label:e("Height"),class:"ck-table-form__dimensions-row__height"}),r.fieldView.bind("value").to(this,"height"),r.fieldView.on("input",(()=>{this.height=r.fieldView.element.value})),{dimensionsLabel:n,widthInput:o,operatorLabel:i,heightInput:r}}_createPaddingField(){const t=this.locale,e=this.t,n=new fp(t,bp);return n.set({label:e("Padding"),class:"ck-table-cell-properties-form__padding"}),n.fieldView.bind("value").to(this,"padding"),n.fieldView.on("input",(()=>{this.padding=n.fieldView.element.value})),n}_createAlignmentFields(){const t=this.locale,e=this.t,n=new op(t);n.text=e("Table cell text alignment");const o=new hm(t),i="rtl"===t.contentLanguageDirection;o.set({isCompact:!0,ariaLabel:e("Horizontal text alignment toolbar")}),PE({view:this,icons:iT,toolbar:o,labels:this._horizontalAlignmentLabels,propertyName:"horizontalAlignment",nameToValue:t=>{if(i){if("left"===t)return"right";if("right"===t)return"left"}return t},defaultValue:this.options.defaultTableCellProperties.horizontalAlignment});const r=new hm(t);return r.set({isCompact:!0,ariaLabel:e("Vertical text alignment toolbar")}),PE({view:this,icons:iT,toolbar:r,labels:this._verticalAlignmentLabels,propertyName:"verticalAlignment",defaultValue:this.options.defaultTableCellProperties.verticalAlignment}),{horizontalAlignmentToolbar:o,verticalAlignmentToolbar:r,alignmentLabel:n}}_createActionButtons(){const t=this.locale,e=this.t,n=new Rg(t),o=new Rg(t),i=[this.borderWidthInput,this.borderColorInput,this.backgroundInput,this.paddingInput];return n.set({label:e("Save"),icon:Ju.check,class:"ck-button-save",type:"submit",withText:!0}),n.bind("isEnabled").toMany(i,"errorText",((...t)=>t.every((t=>!t)))),o.set({label:e("Cancel"),icon:Ju.cancel,class:"ck-button-cancel",withText:!0}),o.delegate("execute").to(this,"cancel"),{saveButtonView:n,cancelButtonView:o}}get _horizontalAlignmentLabels(){const t=this.locale,e=this.t,n=e("Align cell text to the left"),o=e("Align cell text to the center"),i=e("Align cell text to the right"),r=e("Justify cell text");return"rtl"===t.uiLanguageDirection?{right:i,center:o,left:n,justify:r}:{left:n,center:o,right:i,justify:r}}get _verticalAlignmentLabels(){const t=this.t;return{top:t("Align cell text to the top"),middle:t("Align cell text to the middle"),bottom:t("Align cell text to the bottom")}}}function sT(t){return"none"!==t}const aT={borderStyle:"tableCellBorderStyle",borderColor:"tableCellBorderColor",borderWidth:"tableCellBorderWidth",height:"tableCellHeight",width:"tableCellWidth",padding:"tableCellPadding",backgroundColor:"tableCellBackgroundColor",horizontalAlignment:"tableCellHorizontalAlignment",verticalAlignment:"tableCellVerticalAlignment"};class lT extends Pi{constructor(t){super(t),t.config.define("table.tableCellProperties",{borderColors:RE,backgroundColors:RE})}static get requires(){return[Dp]}static get pluginName(){return"TableCellPropertiesUI"}init(){const t=this.editor,e=t.t;this._defaultTableCellProperties=oE(t.config.get("table.tableCellProperties.defaultProperties"),{includeVerticalAlignmentProperty:!0,includeHorizontalAlignmentProperty:!0,includePaddingProperty:!0,isRightToLeftContent:"rtl"===t.locale.contentLanguageDirection}),this._balloon=t.plugins.get(Dp),this.view=null,this._isReady=!1,t.ui.componentFactory.add("tableCellProperties",(n=>{const o=new Rg(n);o.set({label:e("Cell properties"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m11.105 18-.17 1H2.5A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1h15A1.5 1.5 0 0 1 19 2.5v9.975l-.85-.124-.15-.302V8h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5h3.105zM2 12h5V8H2v4zm10-4H8v4h4V8zM2 2v5h5V2H2zm0 16h5v-5H2v5zM13 7h5V2h-5v5zM8 2v5h4V2H8z" opacity=".6"/><path d="m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM13 6a1 1 0 0 1 1 1v3.172a2.047 2.047 0 0 0-.293.443l-.858 1.736-1.916.28-.151.027A1.976 1.976 0 0 0 9.315 14H7a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h6zm-1 2H8v4h4V8z"/></svg>',tooltip:!0}),this.listenTo(o,"execute",(()=>this._showView()));const i=Object.values(aT).map((e=>t.commands.get(e)));return o.bind("isEnabled").toMany(i,"isEnabled",((...t)=>t.some((t=>t)))),o}))}destroy(){super.destroy(),this.view&&this.view.destroy()}_createPropertiesView(){const t=this.editor,e=t.config.get("table.tableCellProperties"),n=Ng(e.borderColors),o=Fg(t.locale,n),i=Ng(e.backgroundColors),r=Fg(t.locale,i),s=new rT(t.locale,{borderColors:o,backgroundColors:r,defaultTableCellProperties:this._defaultTableCellProperties}),a=t.t;s.render(),this.listenTo(s,"submit",(()=>{this._hideView()})),this.listenTo(s,"cancel",(()=>{this._undoStepBatch.operations.length&&t.execute("undo",this._undoStepBatch),this._hideView()})),s.keystrokes.set("Esc",((t,e)=>{this._hideView(),e()})),Yu({emitter:s,activator:()=>this._isViewInBalloon,contextElements:[this._balloon.view.element],callback:()=>this._hideView()});const l=EE(a),c=TE(a);return s.on("change:borderStyle",this._getPropertyChangeCallback("tableCellBorderStyle")),s.on("change:borderColor",this._getValidatedPropertyChangeCallback({viewField:s.borderColorInput,commandName:"tableCellBorderColor",errorText:l,validator:DE})),s.on("change:borderWidth",this._getValidatedPropertyChangeCallback({viewField:s.borderWidthInput,commandName:"tableCellBorderWidth",errorText:c,validator:BE})),s.on("change:padding",this._getValidatedPropertyChangeCallback({viewField:s.paddingInput,commandName:"tableCellPadding",errorText:c,validator:SE})),s.on("change:width",this._getValidatedPropertyChangeCallback({viewField:s.widthInput,commandName:"tableCellWidth",errorText:c,validator:SE})),s.on("change:height",this._getValidatedPropertyChangeCallback({viewField:s.heightInput,commandName:"tableCellHeight",errorText:c,validator:SE})),s.on("change:backgroundColor",this._getValidatedPropertyChangeCallback({viewField:s.backgroundInput,commandName:"tableCellBackgroundColor",errorText:l,validator:DE})),s.on("change:horizontalAlignment",this._getPropertyChangeCallback("tableCellHorizontalAlignment")),s.on("change:verticalAlignment",this._getPropertyChangeCallback("tableCellVerticalAlignment")),s}_fillViewFormFromCommandValues(){const t=this.editor.commands,e=t.get("tableCellBorderStyle");Object.entries(aT).map((([e,n])=>{const o=this._defaultTableCellProperties[e]||"";return[e,t.get(n).value||o]})).forEach((([t,n])=>{("borderColor"!==t&&"borderWidth"!==t||"none"!==e.value)&&this.view.set(t,n)})),this._isReady=!0}_showView(){const t=this.editor;this.view||(this.view=this._createPropertiesView()),this.listenTo(t.ui,"update",(()=>{this._updateView()})),this._fillViewFormFromCommandValues(),this._balloon.add({view:this.view,position:QE(t)}),this._undoStepBatch=t.model.createBatch(),this.view.focus()}_hideView(){const t=this.editor;this.stopListening(t.ui,"update"),this._isReady=!1,this.view.saveButtonView.focus(),this._balloon.remove(this.view),this.editor.editing.view.focus()}_updateView(){const t=this.editor;$x(t.editing.view.document.selection)?this._isViewVisible&&JE(t,"cell"):this._hideView()}get _isViewVisible(){return!!this.view&&this._balloon.visibleView===this.view}get _isViewInBalloon(){return!!this.view&&this._balloon.hasView(this.view)}_getPropertyChangeCallback(t){return(e,n,o)=>{this._isReady&&this.editor.execute(t,{value:o,batch:this._undoStepBatch})}}_getValidatedPropertyChangeCallback(t){const{commandName:e,viewField:n,validator:o,errorText:i}=t,r=Ra((()=>{n.errorText=i}),500);return(t,i,s)=>{r.cancel(),this._isReady&&(o(s)?(this.editor.execute(e,{value:s,batch:this._undoStepBatch}),n.errorText=null):r())}}}class cT extends zi{constructor(t,e,n){super(t),this.attributeName=e,this._defaultValue=n}refresh(){const t=this.editor,e=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(t.model.document.selection);this.isEnabled=!!e.length,this.value=this._getSingleValue(e)}execute(t={}){const{value:e,batch:n}=t,o=this.editor.model,i=this.editor.plugins.get("TableUtils").getSelectionAffectedTableCells(o.document.selection),r=this._getValueToSet(e);o.enqueueChange(n,(t=>{r?i.forEach((e=>t.setAttribute(this.attributeName,r,e))):i.forEach((e=>t.removeAttribute(this.attributeName,e)))}))}_getAttribute(t){if(!t)return;const e=t.getAttribute(this.attributeName);return e!==this._defaultValue?e:void 0}_getValueToSet(t){if(t!==this._defaultValue)return t}_getSingleValue(t){const e=this._getAttribute(t[0]);return t.every((t=>this._getAttribute(t)===e))?e:void 0}}class dT extends cT{constructor(t,e){super(t,"tableCellWidth",e)}_getValueToSet(t){if((t=nE(t,"px"))!==this._defaultValue)return t}}class hT extends Pi{static get pluginName(){return"TableCellWidthEditing"}static get requires(){return[xx]}init(){const t=this.editor,e=oE(t.config.get("table.tableCellProperties.defaultProperties"));xy(t.model.schema,t.conversion,{modelAttribute:"tableCellWidth",styleName:"width",defaultValue:e.width}),t.commands.add("tableCellWidth",new dT(t,e.width))}}class uT extends cT{constructor(t,e){super(t,"tableCellPadding",e)}_getAttribute(t){if(!t)return;const e=eE(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}_getValueToSet(t){const e=nE(t,"px");if(e!==this._defaultValue)return e}}class gT extends cT{constructor(t,e){super(t,"tableCellHeight",e)}_getValueToSet(t){const e=nE(t,"px");if(e!==this._defaultValue)return e}}class mT extends cT{constructor(t,e){super(t,"tableCellBackgroundColor",e)}}class pT extends cT{constructor(t,e){super(t,"tableCellVerticalAlignment",e)}}class fT extends cT{constructor(t,e){super(t,"tableCellHorizontalAlignment",e)}}class bT extends cT{constructor(t,e){super(t,"tableCellBorderStyle",e)}_getAttribute(t){if(!t)return;const e=eE(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class kT extends cT{constructor(t,e){super(t,"tableCellBorderColor",e)}_getAttribute(t){if(!t)return;const e=eE(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}}class wT extends cT{constructor(t,e){super(t,"tableCellBorderWidth",e)}_getAttribute(t){if(!t)return;const e=eE(t.getAttribute(this.attributeName));return e!==this._defaultValue?e:void 0}_getValueToSet(t){const e=nE(t,"px");if(e!==this._defaultValue)return e}}const _T=/^(top|middle|bottom)$/,AT=/^(left|center|right|justify)$/;class CT extends Pi{static get pluginName(){return"TableCellPropertiesEditing"}static get requires(){return[xx,hT]}init(){const t=this.editor,e=t.model.schema,n=t.conversion;t.config.define("table.tableCellProperties.defaultProperties",{});const o=oE(t.config.get("table.tableCellProperties.defaultProperties"),{includeVerticalAlignmentProperty:!0,includeHorizontalAlignmentProperty:!0,includePaddingProperty:!0,isRightToLeftContent:"rtl"===t.locale.contentLanguageDirection});t.data.addStyleProcessorRules(Ru),function(t,e,n){const o={width:"tableCellBorderWidth",color:"tableCellBorderColor",style:"tableCellBorderStyle"};t.extend("tableCell",{allowAttributes:Object.values(o)}),uy(e,"td",o,n),uy(e,"th",o,n),gy(e,{modelElement:"tableCell",modelAttribute:o.style,styleName:"border-style"}),gy(e,{modelElement:"tableCell",modelAttribute:o.color,styleName:"border-color"}),gy(e,{modelElement:"tableCell",modelAttribute:o.width,styleName:"border-width"})}(e,n,{color:o.borderColor,style:o.borderStyle,width:o.borderWidth}),t.commands.add("tableCellBorderStyle",new bT(t,o.borderStyle)),t.commands.add("tableCellBorderColor",new kT(t,o.borderColor)),t.commands.add("tableCellBorderWidth",new wT(t,o.borderWidth)),xy(e,n,{modelAttribute:"tableCellHeight",styleName:"height",defaultValue:o.height}),t.commands.add("tableCellHeight",new gT(t,o.height)),t.data.addStyleProcessorRules(Wu),xy(e,n,{modelAttribute:"tableCellPadding",styleName:"padding",reduceBoxSides:!0,defaultValue:o.padding}),t.commands.add("tableCellPadding",new uT(t,o.padding)),t.data.addStyleProcessorRules(Pu),xy(e,n,{modelAttribute:"tableCellBackgroundColor",styleName:"background-color",defaultValue:o.backgroundColor}),t.commands.add("tableCellBackgroundColor",new mT(t,o.backgroundColor)),function(t,e,n){t.extend("tableCell",{allowAttributes:["tableCellHorizontalAlignment"]}),e.for("downcast").attributeToAttribute({model:{name:"tableCell",key:"tableCellHorizontalAlignment"},view:t=>({key:"style",value:{"text-align":t}})}),e.for("upcast").attributeToAttribute({view:{name:/^(td|th)$/,styles:{"text-align":AT}},model:{key:"tableCellHorizontalAlignment",value:t=>{const e=t.getStyle("text-align");return e===n?null:e}}}).attributeToAttribute({view:{name:/^(td|th)$/,attributes:{align:AT}},model:{key:"tableCellHorizontalAlignment",value:t=>{const e=t.getAttribute("align");return e===n?null:e}}})}(e,n,o.horizontalAlignment),t.commands.add("tableCellHorizontalAlignment",new fT(t,o.horizontalAlignment)),function(t,e,n){t.extend("tableCell",{allowAttributes:["tableCellVerticalAlignment"]}),e.for("downcast").attributeToAttribute({model:{name:"tableCell",key:"tableCellVerticalAlignment"},view:t=>({key:"style",value:{"vertical-align":t}})}),e.for("upcast").attributeToAttribute({view:{name:/^(td|th)$/,styles:{"vertical-align":_T}},model:{key:"tableCellVerticalAlignment",value:t=>{const e=t.getStyle("vertical-align");return e===n?null:e}}}).attributeToAttribute({view:{name:/^(td|th)$/,attributes:{valign:_T}},model:{key:"tableCellVerticalAlignment",value:t=>{const e=t.getAttribute("valign");return e===n?null:e}}})}(e,n,o.verticalAlignment),t.commands.add("tableCellVerticalAlignment",new pT(t,o.verticalAlignment))}}function vT(t){t.document.registerPostFixer((e=>function(t,e){const n=e.document.differ.getChanges();let o=!1;for(const e of n){if("insert"!=e.type)continue;const n=e.position.parent;if(n.is("element","table")||"table"==e.name){const i="table"==e.name?e.position.nodeAfter:n,r=Array.from(i.getChildren()).filter((t=>t.is("element","caption"))),s=r.shift();if(!s)continue;for(const e of r)t.move(t.createRangeIn(e),s,"end"),t.remove(e);s.nextSibling&&(t.move(t.createRangeOn(s),i,"end"),o=!0),o=!!r.length||o}}return o}(e,t)))}function yT(t){return!!t&&t.is("element","table")}function xT(t){for(const e of t.getChildren())if(e.is("element","caption"))return e;return null}function ET(t){const e=t.parent;return"figcaption"==t.name&&e&&e.is("element","figure")&&e.hasClass("table")||"caption"==t.name&&e&&e.is("element","table")?{name:!0}:null}function TT(t){const e=t.getSelectedElement();return e&&e.is("element","table")?e:t.getFirstPosition().findAncestor("table")}class DT extends zi{refresh(){const t=TT(this.editor.model.document.selection);this.isEnabled=!!t,this.isEnabled?this.value=!!xT(t):this.value=!1}execute({focusCaptionOnShow:t=!1}={}){this.editor.model.change((e=>{this.value?this._hideTableCaption(e):this._showTableCaption(e,t)}))}_showTableCaption(t,e){const n=this.editor.model,o=TT(n.document.selection),i=this.editor.plugins.get("TableCaptionEditing")._getSavedCaption(o)||t.createElement("caption");n.insertContent(i,o,"end"),e&&t.setSelection(i,"in")}_hideTableCaption(t){const e=this.editor.model,n=TT(e.document.selection),o=this.editor.plugins.get("TableCaptionEditing"),i=xT(n);o._saveCaption(n,i),e.deleteContent(t.createSelection(i,"on"))}}class ST extends Pi{constructor(t){super(t),this._savedCaptionsMap=new WeakMap}static get pluginName(){return"TableCaptionEditing"}init(){const t=this.editor,e=t.model.schema,n=t.editing.view,o=t.t;e.isRegistered("caption")?e.extend("caption",{allowIn:"table"}):e.register("caption",{allowIn:"table",allowContentOf:"$block",isLimit:!0}),t.commands.add("toggleTableCaption",new DT(this.editor)),t.conversion.for("upcast").elementToElement({view:ET,model:"caption"}),t.conversion.for("dataDowncast").elementToElement({model:"caption",view:(t,{writer:e})=>yT(t.parent)?e.createContainerElement("figcaption"):null}),t.conversion.for("editingDowncast").elementToElement({model:"caption",view:(t,{writer:e})=>{if(!yT(t.parent))return null;const i=e.createEditableElement("figcaption");return e.setCustomProperty("tableCaption",!0,i),$i({view:n,element:i,text:o("Enter table caption"),keepOnFocus:!0}),Rk(i,e)}}),vT(t.model)}_getSavedCaption(t){const e=this._savedCaptionsMap.get(t);return e?kl.fromJSON(e):null}_saveCaption(t,e){this._savedCaptionsMap.set(t,e.toJSON())}}class BT extends Pi{static get pluginName(){return"TableCaptionUI"}init(){const t=this.editor,e=t.editing.view,n=t.t;t.ui.componentFactory.add("toggleTableCaption",(o=>{const i=t.commands.get("toggleTableCaption"),r=new Rg(o);return r.set({icon:Ju.caption,tooltip:!0,isToggleable:!0}),r.bind("isOn","isEnabled").to(i,"value","isEnabled"),r.bind("label").to(i,"value",(t=>n(t?"Toggle caption off":"Toggle caption on"))),this.listenTo(r,"execute",(()=>{if(t.execute("toggleTableCaption",{focusCaptionOnShow:!0}),i.value){const n=function(t){const e=TT(t);return e?xT(e):null}(t.model.document.selection),o=t.editing.mapper.toViewElement(n);if(!o)return;e.scrollToTheSelection(),e.change((t=>{t.addClass("table__caption_highlighted",o)}))}t.editing.view.focus()})),r}))}}var IT=n(2128),PT={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(IT.Z,PT);IT.Z.locals;const RT=5,zT=40,VT=2;function OT(t,e){return 100*zT/FT(t,e)}function FT(t,e){const n=NT(t,"tbody",e)||NT(t,"thead",e);return MT(e.editing.view.domConverter.mapViewToDom(n))}function NT(t,e,n){return[...[...n.editing.mapper.toViewElement(t).getChildren()].find((t=>t.is("element","table"))).getChildren()].find((t=>t.is("element",e)))}function MT(t){const e=Io.window.getComputedStyle(t);return"border-box"===e.boxSizing?parseFloat(e.width)-parseFloat(e.paddingLeft)-parseFloat(e.paddingRight)-parseFloat(e.borderLeftWidth)-parseFloat(e.borderRightWidth):parseFloat(e.width)}function LT(t){const e=Math.pow(10,VT),n="number"==typeof t?t:parseFloat(t);return Math.round(n*e)/e}function HT(t){return t.map((t=>"number"==typeof t?t:parseFloat(t))).filter((t=>!Number.isNaN(t))).reduce(((t,e)=>t+e),0)}function jT(t){let e=function(t){const e=t.filter((t=>"auto"===t)).length;if(0===e)return t.map((t=>LT(t)));const n=HT(t),o=Math.max((100-n)/e,RT);return t.map((t=>"auto"===t?o:t)).map((t=>LT(t)))}(t.map((t=>"auto"===t?t:parseFloat(t.replace("%","")))));const n=HT(e);return 100!==n&&(e=e.map((t=>LT(100*t/n))).map(((t,e,n)=>{if(!(e===n.length-1))return t;return LT(t+100-HT(n))}))),e.map((t=>t+"%"))}function qT(t){const e=Io.window.getComputedStyle(t);return"border-box"===e.boxSizing?parseInt(e.width):parseFloat(e.width)+parseFloat(e.paddingLeft)+parseFloat(e.paddingRight)+parseFloat(e.borderWidth)}function WT(t,e,n,o){for(let i=0;i<Math.max(n.length,t.length);i++){const r=t[i],s=n[i];s?r?o.setAttribute("columnWidth",s,r):o.appendElement("tableColumn",{columnWidth:s},e):o.remove(r)}}function UT(t){if(t.is("element","tableColumnGroup"))return t;const e=t.getChildren();return Array.from(e).find((t=>t.is("element","tableColumnGroup")))}function $T(t){return Array.from(UT(t).getChildren())}function GT(t){return $T(t).map((t=>t.getAttribute("columnWidth")))}class KT extends zi{refresh(){this.isEnabled=!0}execute(t={}){const{model:e,plugins:n}=this.editor;let{table:o=e.document.selection.getSelectedElement(),columnWidths:i,tableWidth:r}=t;i&&(i=Array.isArray(i)?i:i.split(",")),e.change((t=>{r?t.setAttribute("tableWidth",r,o):t.removeAttribute("tableWidth",o);const e=n.get("TableColumnResizeEditing").getColumnGroupElement(o);if(!i&&!e)return;if(!i)return t.remove(e);const s=jT(i);if(e)Array.from(e.getChildren()).forEach(((e,n)=>t.setAttribute("columnWidth",s[n],e)));else{const e=t.createElement("tableColumnGroup");s.forEach((n=>t.appendElement("tableColumn",{columnWidth:n},e))),t.append(e,o)}}))}}class ZT extends Pi{constructor(t){super(t),this._isResizingActive=!1,this.set("_isResizingAllowed",!0),this._resizingData=null,this._domEmitter=new(To()),this._tableUtilsPlugin=t.plugins.get("TableUtils"),this.on("change:_isResizingAllowed",((e,n,o)=>{t.editing.view.change((e=>{e[o?"removeClass":"addClass"]("ck-column-resize_disabled",t.editing.view.document.getRoot())}))}))}static get requires(){return[xx,nx]}static get pluginName(){return"TableColumnResizeEditing"}init(){this._extendSchema(),this._registerPostFixer(),this._registerConverters(),this._registerResizingListeners(),this._registerResizerInserter();const t=this.editor,e=t.plugins.get("TableColumnResize");t.plugins.get("TableEditing").registerAdditionalSlot({filter:t=>t.is("element","tableColumnGroup"),positionOffset:0});const n=new KT(t);t.commands.add("resizeTableWidth",n),t.commands.add("resizeColumnWidths",n),this.bind("_isResizingAllowed").to(t,"isReadOnly",e,"isEnabled",n,"isEnabled",((t,e,n)=>!t&&e&&n))}destroy(){this._domEmitter.stopListening(),super.destroy()}getColumnGroupElement(t){return UT(t)}getTableColumnElements(t){return $T(t)}getTableColumnsWidths(t){return GT(t)}_extendSchema(){this.editor.model.schema.extend("table",{allowAttributes:["tableWidth"]}),this.editor.model.schema.register("tableColumnGroup",{allowIn:"table",isLimit:!0}),this.editor.model.schema.register("tableColumn",{allowIn:"tableColumnGroup",allowAttributes:["columnWidth"],isLimit:!0})}_registerPostFixer(){const t=this.editor.model;function e(t,e,n){const o=n._tableUtilsPlugin.getColumns(e);if(0===o-t.length)return t;const i=t.map((t=>Number(t.replace("%","")))),r=function(t,e){const n=new Set;for(const o of t.getChanges())if("insert"==o.type&&o.position.nodeAfter&&"tableCell"==o.position.nodeAfter.name&&o.position.nodeAfter.getAncestors().includes(e))n.add(o.position.nodeAfter);else if("remove"==o.type){const t=o.position.nodeBefore||o.position.nodeAfter;"tableCell"==t.name&&t.getAncestors().includes(e)&&n.add(t)}return n}(n.editor.model.document.differ,e);for(const t of r){const r=o-i.length;if(0===r)continue;const a=r>0,l=n._tableUtilsPlugin.getCellLocation(t).column;if(a){const t=OT(e,n.editor),o=(s=t,Array(r).fill(s));i.splice(l,0,...o)}else{const t=i.splice(l,Math.abs(r));i[l]+=HT(t)}}var s;return i.map((t=>t+"%"))}t.document.registerPostFixer((n=>{let o=!1;for(const i of function(t){const e=new Set;for(const n of t.document.differ.getChanges()){let o=null;switch(n.type){case"insert":o=["table","tableRow","tableCell"].includes(n.name)?n.position:null;break;case"remove":o=["tableRow","tableCell"].includes(n.name)?n.position:null;break;case"attribute":n.range.start.nodeAfter&&(o=["table","tableRow","tableCell"].includes(n.range.start.nodeAfter.name)?n.range.start:null)}if(!o)continue;const i=o.nodeAfter&&o.nodeAfter.is("element","table")?o.nodeAfter:o.findAncestor("table");for(const n of t.createRangeOn(i).getItems())n.is("element","table")&&UT(n)&&e.add(n)}return e}(t)){const t=this.getColumnGroupElement(i),r=this.getTableColumnElements(t),s=this.getTableColumnsWidths(t);let a=jT(s);a=e(a,i,this),Id(s,a)||(WT(r,t,a,n),o=!0)}return o}))}_registerConverters(){const t=this.editor.conversion;var e;t.for("upcast").attributeToAttribute({view:{name:"figure",key:"style",value:{width:/[\s\S]+/}},model:{name:"table",key:"tableWidth",value:t=>t.getStyle("width")}}),t.for("downcast").attributeToAttribute({model:{name:"table",key:"tableWidth"},view:t=>({name:"figure",key:"style",value:{width:t}})}),t.elementToElement({model:"tableColumnGroup",view:"colgroup"}),t.elementToElement({model:"tableColumn",view:"col"}),t.for("downcast").add((t=>t.on("insert:table",((t,e,n)=>{const o=n.writer,i=e.item,r=n.mapper.toViewElement(i),s=r.is("element","table")?r:Array.from(r.getChildren()).find((t=>t.is("element","table")));UT(e.item)?o.addClass("ck-table-resized",s):o.removeClass("ck-table-resized",s)}),{priority:"low"}))),t.for("upcast").add((e=this._tableUtilsPlugin,t=>t.on("element:colgroup",((t,n,o)=>{const i=n.modelCursor.findAncestor("table"),r=UT(i);if(!r)return;const s=$T(r);let a=GT(r);const l=e.getColumns(i);a=Array.from({length:l},((t,e)=>a[e]||"auto")),(a.length!=s.length||a.includes("auto"))&&WT(s,r,jT(a),o.writer)}),{priority:"low"}))),t.for("upcast").attributeToAttribute({view:{name:"col",styles:{width:/.*/}},model:{key:"columnWidth",value:t=>{const e=t.getStyle("width");return e&&e.endsWith("%")?e:"auto"}}}),t.for("downcast").attributeToAttribute({model:{name:"tableColumn",key:"columnWidth"},view:t=>({key:"style",value:{width:t}})})}_registerResizingListeners(){const t=this.editor.editing.view;t.addObserver(Lx),t.document.on("mousedown",this._onMouseDownHandler.bind(this),{priority:"high"}),this._domEmitter.listenTo(Io.window.document,"mousemove",Up(this._onMouseMoveHandler.bind(this),50)),this._domEmitter.listenTo(Io.window.document,"mouseup",this._onMouseUpHandler.bind(this))}_onMouseDownHandler(t,e){const n=e.target;if(!n.hasClass("ck-table-column-resizer"))return;if(!this._isResizingAllowed)return;e.preventDefault(),t.stop();const o=this.editor,i=function(t,e,n){const o=Array(e.getColumns(t)),i=new Sy(t);for(const t of i){const e=n.editing.mapper.toViewElement(t.cell),i=qT(n.editing.view.domConverter.mapViewToDom(e));(!o[t.column]||i<o[t.column])&&(o[t.column]=LT(i))}return o}(o.editing.mapper.toModelElement(n.findAncestor("figure")),this._tableUtilsPlugin,o),r=n.findAncestor("table"),s=o.editing.view;Array.from(r.getChildren()).find((t=>t.is("element","colgroup")))||s.change((t=>{!function(t,e,n){const o=t.createContainerElement("colgroup");for(let n=0;n<e.length;n++){const i=t.createEmptyElement("col"),r=`${LT(e[n]/HT(e)*100)}%`;t.setStyle("width",r,i),t.insert(t.createPositionAt(o,"end"),i)}t.insert(t.createPositionAt(n,0),o)}(t,i,r)})),this._isResizingActive=!0,this._resizingData=this._getResizingData(e,i),s.change((t=>function(t,e,n){const o=n.widths.viewFigureWidth/n.widths.viewFigureParentWidth;t.addClass("ck-table-resized",e),t.addClass("ck-table-column-resizer__active",n.elements.viewResizer),t.setStyle("width",`${LT(100*o)}%`,e.findAncestor("figure"))}(t,r,this._resizingData)))}_onMouseMoveHandler(t,e){if(!this._isResizingActive)return;if(!this._isResizingAllowed)return void this._onMouseUpHandler();const{columnPosition:n,flags:{isRightEdge:o,isTableCentered:i,isLtrContent:r},elements:{viewFigure:s,viewLeftColumn:a,viewRightColumn:l},widths:{viewFigureParentWidth:c,tableWidth:d,leftColumnWidth:h,rightColumnWidth:u}}=this._resizingData,g=-h+zT,m=o?c-d:u-zT,p=(r?1:-1)*(o&&i?2:1),f=(b=(e.clientX-n)*p,k=Math.min(g,0),w=Math.max(m,0),LT(b<=k?k:b>=w?w:b));var b,k,w;0!==f&&this.editor.editing.view.change((t=>{const e=LT(100*(h+f)/d);if(t.setStyle("width",`${e}%`,a),o){const e=LT(100*(d+f)/c);t.setStyle("width",`${e}%`,s)}else{const e=LT(100*(u-f)/d);t.setStyle("width",`${e}%`,l)}}))}_onMouseUpHandler(){if(!this._isResizingActive)return;const{viewResizer:t,modelTable:e,viewFigure:n,viewColgroup:o}=this._resizingData.elements,i=this.editor,r=i.editing.view,s=this.getColumnGroupElement(e),a=Array.from(o.getChildren()).filter((t=>t.is("view:element"))),l=s?this.getTableColumnsWidths(s):null,c=a.map((t=>t.getStyle("width"))),d=!Id(l,c),h=e.getAttribute("tableWidth"),u=n.getStyle("width"),g=h!==u;(d||g)&&(this._isResizingAllowed?i.execute("resizeTableWidth",{table:e,tableWidth:`${LT(u)}%`,columnWidths:c}):r.change((t=>{if(l)for(const e of a)t.setStyle("width",l.shift(),e);else t.remove(o);g&&(h?t.setStyle("width",h,n):t.removeStyle("width",n)),l||h||t.removeClass("ck-table-resized",[...n.getChildren()].find((t=>"table"===t.name)))}))),r.change((e=>{e.removeClass("ck-table-column-resizer__active",t)})),this._isResizingActive=!1,this._resizingData=null}_getResizingData(t,e){const n=this.editor,o=t.domEvent.clientX,i=t.target,r=i.findAncestor("td")||i.findAncestor("th"),s=n.editing.mapper.toModelElement(r),a=s.findAncestor("table"),l=function(t,e){const n=e.getCellLocation(t).column;return{leftEdge:n,rightEdge:n+(t.getAttribute("colspan")||1)-1}}(s,this._tableUtilsPlugin).rightEdge,c=l===this._tableUtilsPlugin.getColumns(a)-1,d=!a.hasAttribute("tableAlignment"),h="rtl"!==n.locale.contentLanguageDirection,u=r.findAncestor("table"),g=u.findAncestor("figure"),m=[...u.getChildren()].find((t=>t.is("element","colgroup"))),p=m.getChild(l),f=c?void 0:m.getChild(l+1);return{columnPosition:o,flags:{isRightEdge:c,isTableCentered:d,isLtrContent:h},elements:{viewResizer:i,modelTable:a,viewFigure:g,viewColgroup:m,viewLeftColumn:p,viewRightColumn:f},widths:{viewFigureParentWidth:MT(n.editing.view.domConverter.mapViewToDom(g.parent)),viewFigureWidth:MT(n.editing.view.domConverter.mapViewToDom(g)),tableWidth:FT(a,n),leftColumnWidth:e[l],rightColumnWidth:c?void 0:e[l+1]}}}_registerResizerInserter(){this.editor.conversion.for("editingDowncast").add((t=>{t.on("insert:tableCell",((t,e,n)=>{const o=e.item,i=n.mapper.toViewElement(o),r=n.writer;r.insert(r.createPositionAt(i,"end"),r.createUIElement("div",{class:"ck-table-column-resizer"}))}),{priority:"lowest"})}))}}var JT=n(4101),YT={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(JT.Z,YT);JT.Z.locals;const QT={heading1:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M19 9v10h-2v-8h-2V9h4zM4 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H10a1 1 0 0 1-1-1V11H4v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H3a1 1 0 0 1 1 1v4.5z"/></svg>',heading2:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M3 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H9a1 1 0 0 1-1-1V11H3v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H2a1 1 0 0 1 1 1v4.5zm16.076 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1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm9.578 7.607 1.777-.184c.05.402.201.72.45.955a1.223 1.223 0 0 0 1.81-.101c.258-.303.387-.759.387-1.368 0-.572-.128-1-.384-1.286-.256-.285-.59-.428-1-.428-.512 0-.971.226-1.377.679l-1.448-.21.915-4.843h4.716v1.67H15.56l-.28 1.58a2.697 2.697 0 0 1 1.219-.298 2.68 2.68 0 0 1 2.012.863c.55.576.825 1.323.825 2.241a3.36 3.36 0 0 1-.666 2.05c-.605.821-1.445 1.232-2.52 1.232-.86 0-1.56-.23-2.101-.692-.542-.461-.866-1.081-.971-1.86z"/></svg>',heading6:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M3.5 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm15.595 2.973-1.726.19c-.043-.355-.153-.617-.33-.787-.178-.169-.409-.253-.692-.253-.377 0-.695.169-.956.507-.26.339-.424 1.043-.492 2.114.445-.525.997-.787 1.657-.787.745 0 1.383.284 1.914.85.531.568.797 1.3.797 2.197 0 .952-.28 1.716-.838 2.291-.559.576-1.276.864-2.152.864-.94 0-1.712-.365-2.317-1.095-.605-.73-.908-1.927-.908-3.59 0-1.705.316-2.935.946-3.688.63-.753 1.45-1.13 2.457-1.13.706 0 1.291.198 1.755.594.463.395.758.97.885 1.723zm-4.043 3.891c0 .58.133 1.028.4 1.343.266.315.57.473.914.473.33 0 .605-.13.825-.388.22-.258.33-.68.33-1.27 0-.604-.118-1.047-.355-1.329a1.115 1.115 0 0 0-.89-.422c-.342 0-.632.134-.869.403s-.355.666-.355 1.19z"/></svg>'};class XT extends zi{constructor(t,e){super(t),this.attributeKey=e}refresh(){const t=this.editor.model,e=t.document;this.value=e.selection.getAttribute(this.attributeKey),this.isEnabled=t.schema.checkAttributeInSelection(e.selection,this.attributeKey)}execute(t={}){const e=this.editor.model,n=e.document.selection,o=t.value;e.change((t=>{if(n.isCollapsed)o?t.setSelectionAttribute(this.attributeKey,o):t.removeSelectionAttribute(this.attributeKey);else{const i=e.schema.getValidRanges(n.getRanges(),this.attributeKey);for(const e of i)o?t.setAttribute(this.attributeKey,o,e):t.removeAttribute(this.attributeKey,e)}}))}}class tD extends(j(vi)){constructor(t){super(t),this.set("isEmpty",!0),this.on("change",(()=>{this.set("isEmpty",0===this.length)}))}add(t,e){return this.find((e=>e.color===t.color))?this:super.add(t,e)}hasColor(t){return!!this.find((e=>e.color===t))}}var eD=n(1896),nD={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(eD.Z,nD);eD.Z.locals;class oD extends ig{constructor(t,{colors:e,columns:n,removeButtonLabel:o,documentColorsLabel:i,documentColorsCount:r}){super(t),this.items=this.createCollection(),this.colorDefinitions=e,this.focusTracker=new xi,this.keystrokes=new Ei,this.set("selectedColor",void 0),this.removeButtonLabel=o,this.columns=n,this.documentColors=new tD,this.documentColorsCount=r,this._focusables=new eg,this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this._documentColorsLabel=i,this.setTemplate({tag:"div",attributes:{class:["ck","ck-color-table"]},children:this.items}),this.items.add(this._createRemoveColorButton())}updateDocumentColors(t,e){const n=t.document,o=this.documentColorsCount;this.documentColors.clear();for(const i of n.getRootNames()){const r=n.getRoot(i),s=t.createRangeIn(r);for(const t of s.getItems())if(t.is("$textProxy")&&t.hasAttribute(e)&&(this._addColorToDocumentColors(t.getAttribute(e)),this.documentColors.length>=o))return}}updateSelectedColors(){const t=this.documentColorsGrid,e=this.staticColorsGrid,n=this.selectedColor;e.selectedColor=n,t&&(t.selectedColor=n)}render(){super.render(),this.keystrokes.listenTo(this.element)}destroy(){super.destroy(),this.focusTracker.destroy(),this.keystrokes.destroy()}appendGrids(){if(!this.staticColorsGrid&&(this.staticColorsGrid=this._createStaticColorsGrid(),this.items.add(this.staticColorsGrid),this.focusTracker.add(this.staticColorsGrid.element),this._focusables.add(this.staticColorsGrid),this.documentColorsCount)){const t=rg.bind(this.documentColors,this.documentColors),e=new op(this.locale);e.text=this._documentColorsLabel,e.extendTemplate({attributes:{class:["ck","ck-color-grid__label",t.if("isEmpty","ck-hidden")]}}),this.items.add(e),this.documentColorsGrid=this._createDocumentColorsGrid(),this.items.add(this.documentColorsGrid),this.focusTracker.add(this.documentColorsGrid.element),this._focusables.add(this.documentColorsGrid)}}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}_createRemoveColorButton(){const t=new Rg;return t.set({withText:!0,icon:Ju.eraser,label:this.removeButtonLabel}),t.class="ck-color-table__remove-color",t.on("execute",(()=>{this.fire("execute",{value:null})})),t.render(),this.focusTracker.add(t.element),this._focusables.add(t),t}_createStaticColorsGrid(){const t=new qg(this.locale,{colorDefinitions:this.colorDefinitions,columns:this.columns});return t.delegate("execute").to(this),t}_createDocumentColorsGrid(){const t=rg.bind(this.documentColors,this.documentColors),e=new qg(this.locale,{columns:this.columns});return e.delegate("execute").to(this),e.extendTemplate({attributes:{class:t.if("isEmpty","ck-hidden")}}),e.items.bindTo(this.documentColors).using((t=>{const e=new Lg;return e.set({color:t.color,hasBorder:t.options&&t.options.hasBorder}),t.label&&e.set({label:t.label,tooltip:!0}),e.on("execute",(()=>{this.fire("execute",{value:t.color})})),e})),this.documentColors.on("change:isEmpty",((t,n,o)=>{o&&(e.selectedColor=null)})),e}_addColorToDocumentColors(t){const e=this.colorDefinitions.find((e=>e.color===t));e?this.documentColors.add(Object.assign({},e)):this.documentColors.add({color:t,label:t,options:{hasBorder:!1}})}}const iD="fontSize",rD="fontFamily",sD="fontColor",aD="fontBackgroundColor";function lD(t,e){const n={model:{key:t,values:[]},view:{},upcastAlso:{}};for(const t of e)n.model.values.push(t.model),n.view[t.model]=t.view,t.upcastAlso&&(n.upcastAlso[t.model]=t.upcastAlso);return n}function cD(t){return e=>e.getStyle(t).replace(/\s/g,"")}function dD(t){return(e,{writer:n})=>n.createAttributeElement("span",{style:`${t}:${e}`},{priority:7})}class hD extends XT{constructor(t){super(t,rD)}}function uD(t){return t.map(gD).filter((t=>void 0!==t))}function gD(t){return"object"==typeof t?t:"default"===t?{title:"Default",model:void 0}:"string"==typeof t?function(t){const e=t.replace(/"|'/g,"").split(","),n=e[0],o=e.map(mD).join(", ");return{title:n,model:o,view:{name:"span",styles:{"font-family":o},priority:7}}}(t):void 0}function mD(t){return(t=t.trim()).indexOf(" ")>0&&(t=`'${t}'`),t}class pD extends Pi{static get pluginName(){return"FontFamilyEditing"}constructor(t){super(t),t.config.define(rD,{options:["default","Arial, Helvetica, sans-serif","Courier New, Courier, monospace","Georgia, serif","Lucida Sans Unicode, Lucida Grande, sans-serif","Tahoma, Geneva, sans-serif","Times New Roman, Times, serif","Trebuchet MS, Helvetica, sans-serif","Verdana, Geneva, sans-serif"],supportAllValues:!1})}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:rD}),t.model.schema.setAttributeProperties(rD,{isFormatting:!0,copyOnEnter:!0});const e=uD(t.config.get("fontFamily.options")).filter((t=>t.model)),n=lD(rD,e);t.config.get("fontFamily.supportAllValues")?(this._prepareAnyValueConverters(),this._prepareCompatibilityConverter()):t.conversion.attributeToElement(n),t.commands.add(rD,new hD(t))}_prepareAnyValueConverters(){const t=this.editor;t.conversion.for("downcast").attributeToElement({model:rD,view:(t,{writer:e})=>e.createAttributeElement("span",{style:"font-family:"+t},{priority:7})}),t.conversion.for("upcast").elementToAttribute({model:{key:rD,value:t=>t.getStyle("font-family")},view:{name:"span",styles:{"font-family":/.*/}}})}_prepareCompatibilityConverter(){this.editor.conversion.for("upcast").elementToAttribute({view:{name:"font",attributes:{face:/.*/}},model:{key:rD,value:t=>t.getAttribute("face")}})}}class fD extends Pi{static get pluginName(){return"FontFamilyUI"}init(){const t=this.editor,e=t.t,n=this._getLocalizedOptions(),o=t.commands.get(rD);t.ui.componentFactory.add(rD,(i=>{const r=ym(i);return Tm(r,(()=>function(t,e){const n=new vi;for(const o of t){const t={type:"button",model:new Ap({commandName:rD,commandParam:o.model,label:o.title,withText:!0})};t.model.bind("isOn").to(e,"value",(t=>t===o.model||!(!t||!o.model)&&t.split(",")[0].replace(/'/g,"").toLowerCase()===o.model.toLowerCase())),o.view&&"string"!=typeof o.view&&o.view.styles&&t.model.set("labelStyle",`font-family: ${o.view.styles["font-family"]}`),n.add(t)}return n}(n,o))),r.buttonView.set({label:e("Font Family"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M11.03 3h6.149a.75.75 0 1 1 0 1.5h-5.514L11.03 3zm1.27 3h4.879a.75.75 0 1 1 0 1.5h-4.244L12.3 6zm1.27 3h3.609a.75.75 0 1 1 0 1.5h-2.973L13.57 9zm-2.754 2.5L8.038 4.785 5.261 11.5h5.555zm.62 1.5H4.641l-1.666 4.028H1.312l5.789-14h1.875l5.789 14h-1.663L11.436 13z"/></svg>',tooltip:!0}),r.extendTemplate({attributes:{class:"ck-font-family-dropdown"}}),r.bind("isEnabled").to(o),this.listenTo(r,"execute",(e=>{t.execute(e.source.commandName,{value:e.source.commandParam}),t.editing.view.focus()})),r}))}_getLocalizedOptions(){const t=this.editor,e=t.t;return uD(t.config.get(rD).options).map((t=>("Default"===t.title&&(t.title=e("Default")),t)))}}class bD extends Pi{static get requires(){return[pD,fD]}static get pluginName(){return"FontFamily"}}class kD extends XT{constructor(t){super(t,iD)}}function wD(t){return t.map((t=>function(t){"number"==typeof t&&(t=String(t));if("object"==typeof t&&(e=t,e.title&&e.model&&e.view))return AD(t);var e;const n=function(t){return"string"==typeof t?_D[t]:_D[t.model]}(t);if(n)return AD(n);if("default"===t)return{model:void 0,title:"Default"};if(function(t){let e;if("object"==typeof t){if(!t.model)throw new b("font-size-invalid-definition",null,t);e=parseFloat(t.model)}else e=parseFloat(t);return isNaN(e)}(t))return;return function(t){"string"==typeof t&&(t={title:t,model:`${parseFloat(t)}px`});return t.view={name:"span",styles:{"font-size":t.model}},AD(t)}(t)}(t))).filter((t=>void 0!==t))}const _D={get tiny(){return{title:"Tiny",model:"tiny",view:{name:"span",classes:"text-tiny",priority:7}}},get small(){return{title:"Small",model:"small",view:{name:"span",classes:"text-small",priority:7}}},get big(){return{title:"Big",model:"big",view:{name:"span",classes:"text-big",priority:7}}},get huge(){return{title:"Huge",model:"huge",view:{name:"span",classes:"text-huge",priority:7}}}};function AD(t){return t.view&&"string"!=typeof t.view&&!t.view.priority&&(t.view.priority=7),t}const CD=["x-small","x-small","small","medium","large","x-large","xx-large","xxx-large"];class vD extends Pi{static get pluginName(){return"FontSizeEditing"}constructor(t){super(t),t.config.define(iD,{options:["tiny","small","default","big","huge"],supportAllValues:!1})}init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:iD}),t.model.schema.setAttributeProperties(iD,{isFormatting:!0,copyOnEnter:!0});const e=t.config.get("fontSize.supportAllValues"),n=wD(this.editor.config.get("fontSize.options")).filter((t=>t.model)),o=lD(iD,n);e?(this._prepareAnyValueConverters(o),this._prepareCompatibilityConverter()):t.conversion.attributeToElement(o),t.commands.add(iD,new kD(t))}_prepareAnyValueConverters(t){const e=this.editor,n=t.model.values.filter((t=>!fu(String(t))&&!ku(String(t))));if(n.length)throw new b("font-size-invalid-use-of-named-presets",null,{presets:n});e.conversion.for("downcast").attributeToElement({model:iD,view:(t,{writer:e})=>{if(t)return e.createAttributeElement("span",{style:"font-size:"+t},{priority:7})}}),e.conversion.for("upcast").elementToAttribute({model:{key:iD,value:t=>t.getStyle("font-size")},view:{name:"span",styles:{"font-size":/.*/}}})}_prepareCompatibilityConverter(){this.editor.conversion.for("upcast").elementToAttribute({view:{name:"font",attributes:{size:/^[+-]?\d{1,3}$/}},model:{key:iD,value:t=>{const e=t.getAttribute("size"),n="-"===e[0]||"+"===e[0];let o=parseInt(e,10);n&&(o=3+o);const i=CD.length-1,r=Math.min(Math.max(o,0),i);return CD[r]}}})}}var yD=n(6007),xD={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(yD.Z,xD);yD.Z.locals;class ED extends Pi{static get pluginName(){return"FontSizeUI"}init(){const t=this.editor,e=t.t,n=this._getLocalizedOptions(),o=t.commands.get(iD);t.ui.componentFactory.add(iD,(i=>{const r=ym(i);return Tm(r,(()=>function(t,e){const n=new vi;for(const o of t){const t={type:"button",model:new Ap({commandName:iD,commandParam:o.model,label:o.title,class:"ck-fontsize-option",withText:!0})};o.view&&"string"!=typeof o.view&&(o.view.styles&&t.model.set("labelStyle",`font-size:${o.view.styles["font-size"]}`),o.view.classes&&t.model.set("class",`${t.model.class} ${o.view.classes}`)),t.model.bind("isOn").to(e,"value",(t=>t===o.model)),n.add(t)}return n}(n,o))),r.buttonView.set({label:e("Font Size"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M9.816 11.5 7.038 4.785 4.261 11.5h5.555zm.62 1.5H3.641l-1.666 4.028H.312l5.789-14h1.875l5.789 14h-1.663L10.436 13zm7.55 2.279.779-.779.707.707-2.265 2.265-2.193-2.265.707-.707.765.765V4.825c0-.042 0-.083.002-.123l-.77.77-.707-.707L17.207 2.5l2.265 2.265-.707.707-.782-.782c.002.043.003.089.003.135v10.454z"/></svg>',tooltip:!0}),r.extendTemplate({attributes:{class:["ck-font-size-dropdown"]}}),r.bind("isEnabled").to(o),this.listenTo(r,"execute",(e=>{t.execute(e.source.commandName,{value:e.source.commandParam}),t.editing.view.focus()})),r}))}_getLocalizedOptions(){const t=this.editor,e=t.t,n={Default:e("Default"),Tiny:e("Tiny"),Small:e("Small"),Big:e("Big"),Huge:e("Huge")};return wD(t.config.get(iD).options).map((t=>{const e=n[t.title];return e&&e!=t.title&&(t=Object.assign({},t,{title:e})),t}))}}class TD extends Pi{static get requires(){return[vD,ED]}static get pluginName(){return"FontSize"}normalizeSizeOptions(t){return wD(t)}}class DD extends XT{constructor(t){super(t,sD)}}class SD extends Pi{static get pluginName(){return"FontColorEditing"}constructor(t){super(t),t.config.define(sD,{colors:[{color:"hsl(0, 0%, 0%)",label:"Black"},{color:"hsl(0, 0%, 30%)",label:"Dim grey"},{color:"hsl(0, 0%, 60%)",label:"Grey"},{color:"hsl(0, 0%, 90%)",label:"Light grey"},{color:"hsl(0, 0%, 100%)",label:"White",hasBorder:!0},{color:"hsl(0, 75%, 60%)",label:"Red"},{color:"hsl(30, 75%, 60%)",label:"Orange"},{color:"hsl(60, 75%, 60%)",label:"Yellow"},{color:"hsl(90, 75%, 60%)",label:"Light green"},{color:"hsl(120, 75%, 60%)",label:"Green"},{color:"hsl(150, 75%, 60%)",label:"Aquamarine"},{color:"hsl(180, 75%, 60%)",label:"Turquoise"},{color:"hsl(210, 75%, 60%)",label:"Light blue"},{color:"hsl(240, 75%, 60%)",label:"Blue"},{color:"hsl(270, 75%, 60%)",label:"Purple"}],columns:5}),t.conversion.for("upcast").elementToAttribute({view:{name:"span",styles:{color:/[\s\S]+/}},model:{key:sD,value:cD("color")}}),t.conversion.for("upcast").elementToAttribute({view:{name:"font",attributes:{color:/^#?\w+$/}},model:{key:sD,value:t=>t.getAttribute("color")}}),t.conversion.for("downcast").attributeToElement({model:sD,view:dD("color")}),t.commands.add(sD,new DD(t)),t.model.schema.extend("$text",{allowAttributes:sD}),t.model.schema.setAttributeProperties(sD,{isFormatting:!0,copyOnEnter:!0})}}class BD extends Pi{constructor(t,{commandName:e,componentName:n,icon:o,dropdownLabel:i}){super(t),this.commandName=e,this.componentName=n,this.icon=o,this.dropdownLabel=i,this.columns=t.config.get(`${this.componentName}.columns`),this.colorTableView=void 0}init(){const t=this.editor,e=t.locale,n=e.t,o=t.commands.get(this.commandName),i=Fg(e,Ng(t.config.get(this.componentName).colors)),r=t.config.get(`${this.componentName}.documentColors`);t.ui.componentFactory.add(this.componentName,(e=>{const s=ym(e);return this.colorTableView=function({dropdownView:t,colors:e,columns:n,removeButtonLabel:o,documentColorsLabel:i,documentColorsCount:r}){const s=t.locale,a=new oD(s,{colors:e,columns:n,removeButtonLabel:o,documentColorsLabel:i,documentColorsCount:r});return t.colorTableView=a,t.panelView.children.add(a),a.delegate("execute").to(t,"execute"),a}({dropdownView:s,colors:i.map((t=>({label:t.label,color:t.model,options:{hasBorder:t.hasBorder}}))),columns:this.columns,removeButtonLabel:n("Remove color"),documentColorsLabel:0!==r?n("Document colors"):"",documentColorsCount:void 0===r?this.columns:r}),this.colorTableView.bind("selectedColor").to(o,"value"),s.buttonView.set({label:this.dropdownLabel,icon:this.icon,tooltip:!0}),s.extendTemplate({attributes:{class:"ck-color-ui-dropdown"}}),s.bind("isEnabled").to(o),s.on("execute",((e,n)=>{t.execute(this.commandName,n),t.editing.view.focus()})),s.on("change:isOpen",((e,n,o)=>{s.colorTableView.appendGrids(),o&&(0!==r&&this.colorTableView.updateDocumentColors(t.model,this.componentName),this.colorTableView.updateSelectedColors())})),Sm(s,(()=>s.colorTableView.staticColorsGrid.items.find((t=>t.isOn)))),s}))}}class ID extends BD{constructor(t){const e=t.locale.t;super(t,{commandName:sD,componentName:sD,icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M12.4 10.3 10 4.5l-2.4 5.8h4.8zm.5 1.2H7.1L5.7 15H4.2l5-12h1.6l5 12h-1.5L13 11.5zm3.1 7H4a1 1 0 0 1 0-2h12a1 1 0 0 1 0 2z"/></svg>',dropdownLabel:e("Font Color")})}static get pluginName(){return"FontColorUI"}}class PD extends Pi{static get requires(){return[SD,ID]}static get pluginName(){return"FontColor"}}class RD extends XT{constructor(t){super(t,aD)}}class zD extends Pi{static get pluginName(){return"FontBackgroundColorEditing"}constructor(t){super(t),t.config.define(aD,{colors:[{color:"hsl(0, 0%, 0%)",label:"Black"},{color:"hsl(0, 0%, 30%)",label:"Dim grey"},{color:"hsl(0, 0%, 60%)",label:"Grey"},{color:"hsl(0, 0%, 90%)",label:"Light grey"},{color:"hsl(0, 0%, 100%)",label:"White",hasBorder:!0},{color:"hsl(0, 75%, 60%)",label:"Red"},{color:"hsl(30, 75%, 60%)",label:"Orange"},{color:"hsl(60, 75%, 60%)",label:"Yellow"},{color:"hsl(90, 75%, 60%)",label:"Light green"},{color:"hsl(120, 75%, 60%)",label:"Green"},{color:"hsl(150, 75%, 60%)",label:"Aquamarine"},{color:"hsl(180, 75%, 60%)",label:"Turquoise"},{color:"hsl(210, 75%, 60%)",label:"Light blue"},{color:"hsl(240, 75%, 60%)",label:"Blue"},{color:"hsl(270, 75%, 60%)",label:"Purple"}],columns:5}),t.data.addStyleProcessorRules(Pu),t.conversion.for("upcast").elementToAttribute({view:{name:"span",styles:{"background-color":/[\s\S]+/}},model:{key:aD,value:cD("background-color")}}),t.conversion.for("downcast").attributeToElement({model:aD,view:dD("background-color")}),t.commands.add(aD,new RD(t)),t.model.schema.extend("$text",{allowAttributes:aD}),t.model.schema.setAttributeProperties(aD,{isFormatting:!0,copyOnEnter:!0})}}class VD extends BD{constructor(t){const e=t.locale.t;super(t,{commandName:aD,componentName:aD,icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M4 2h12a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2zm8.38 9.262H7.62L10 5.506l2.38 5.756zm.532 1.285L14.34 16h1.426L10.804 4H9.196L4.234 16H5.66l1.428-3.453h5.824z"/></svg>',dropdownLabel:e("Font Background Color")})}static get pluginName(){return"FontBackgroundColorUI"}}class OD extends Pi{static get requires(){return[zD,VD]}static get pluginName(){return"FontBackgroundColor"}}function FD(t){const e=t.t,n=t.config.get("codeBlock.languages");for(const t of n)"Plain text"===t.label&&(t.label=e("Plain text")),void 0===t.class&&(t.class=`language-${t.language}`);return n}function ND(t,e,n){const o={};for(const i of t)if("class"===e){o[i[e].split(" ").shift()]=i[n]}else o[i[e]]=i[n];return o}function MD(t){return t.data.match(/^(\s*)/)[0]}function LD(t){const e=t.document.selection,n=[];if(e.isCollapsed)return[e.anchor];const o=e.getFirstRange().getWalker({ignoreElementEnd:!0,direction:"backward"});for(const{item:e}of o){if(!e.is("$textProxy"))continue;const{parent:o,startOffset:i}=e.textNode;if(!o.is("element","codeBlock"))continue;const r=MD(e.textNode),s=t.createPositionAt(o,i+r.length);n.push(s)}return n}function HD(t){const e=yi(t.getSelectedBlocks());return!!e&&e.is("element","codeBlock")}function jD(t,e){return!e.is("rootElement")&&!t.isLimit(e)&&t.checkChild(e.parent,"codeBlock")}class qD extends zi{constructor(t){super(t),this._lastLanguage=null}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(t={}){const e=this.editor,n=e.model,o=n.document.selection,i=FD(e)[0],r=Array.from(o.getSelectedBlocks()),s=null==t.forceValue?!this.value:t.forceValue,a=function(t,e,n){if(t.language)return t.language;if(t.usePreviousLanguageChoice&&e)return e;return n}(t,this._lastLanguage,i.language);n.change((t=>{s?this._applyCodeBlock(t,r,a):this._removeCodeBlock(t,r)}))}_getValue(){const t=yi(this.editor.model.document.selection.getSelectedBlocks());return!!!(!t||!t.is("element","codeBlock"))&&t.getAttribute("language")}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=yi(t.getSelectedBlocks());return!!n&&jD(e,n)}_applyCodeBlock(t,e,n){this._lastLanguage=n;const o=this.editor.model.schema,i=e.filter((t=>jD(o,t)));for(const e of i)t.rename(e,"codeBlock"),t.setAttribute("language",n,e),o.removeDisallowedAttributes([e],t),Array.from(e.getChildren()).filter((t=>!o.checkChild(e,t))).forEach((e=>t.remove(e)));i.reverse().forEach(((e,n)=>{const o=i[n+1];e.previousSibling===o&&(t.appendElement("softBreak",o),t.merge(t.createPositionBefore(e)))}))}_removeCodeBlock(t,e){const n=e.filter((t=>t.is("element","codeBlock")));for(const e of n){const n=t.createRangeOn(e);for(const e of Array.from(n.getItems()).reverse())if(e.is("element","softBreak")&&e.parent.is("element","codeBlock")){const{position:n}=t.split(t.createPositionBefore(e)),o=n.nodeAfter;t.rename(o,"paragraph"),t.removeAttribute("language",o),t.remove(e)}t.rename(e,"paragraph"),t.removeAttribute("language",e)}}}class WD extends zi{constructor(t){super(t),this._indentSequence=t.config.get("codeBlock.indentSequence")}refresh(){this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model;t.change((e=>{const n=LD(t);for(const o of n){const n=e.createText(this._indentSequence);t.insertContent(n,o)}}))}_checkEnabled(){return!!this._indentSequence&&HD(this.editor.model.document.selection)}}class UD extends zi{constructor(t){super(t),this._indentSequence=t.config.get("codeBlock.indentSequence")}refresh(){this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model;t.change((()=>{const e=LD(t);for(const n of e){const e=$D(t,n,this._indentSequence);e&&t.deleteContent(t.createSelection(e))}}))}_checkEnabled(){if(!this._indentSequence)return!1;const t=this.editor.model;return!!HD(t.document.selection)&&LD(t).some((e=>$D(t,e,this._indentSequence)))}}function $D(t,e,n){const o=function(t){let e=t.parent.getChild(t.index);e&&!e.is("element","softBreak")||(e=t.nodeBefore);if(!e||e.is("element","softBreak"))return null;return e}(e);if(!o)return null;const i=MD(o),r=i.lastIndexOf(n);if(r+n.length!==i.length)return null;if(-1===r)return null;const{parent:s,startOffset:a}=o;return t.createRange(t.createPositionAt(s,a+r),t.createPositionAt(s,a+r+n.length))}function GD(t,e,n=!1){const o=ND(e,"language","class"),i=ND(e,"language","label");return(e,r,s)=>{const{writer:a,mapper:l,consumable:c}=s;if(!c.consume(r.item,"insert"))return;const d=r.item.getAttribute("language"),h=l.toViewPosition(t.createPositionBefore(r.item)),u={};n&&(u["data-language"]=i[d],u.spellcheck="false");const g=o[d]?{class:o[d]}:void 0,m=a.createContainerElement("code",g),p=a.createContainerElement("pre",u,m);a.insert(h,p),l.bindElements(r.item,m)}}const KD="paragraph";class ZD extends Pi{static get pluginName(){return"CodeBlockEditing"}static get requires(){return[Qb]}constructor(t){super(t),t.config.define("codeBlock",{languages:[{language:"plaintext",label:"Plain text"},{language:"c",label:"C"},{language:"cs",label:"C#"},{language:"cpp",label:"C++"},{language:"css",label:"CSS"},{language:"diff",label:"Diff"},{language:"html",label:"HTML"},{language:"java",label:"Java"},{language:"javascript",label:"JavaScript"},{language:"php",label:"PHP"},{language:"python",label:"Python"},{language:"ruby",label:"Ruby"},{language:"typescript",label:"TypeScript"},{language:"xml",label:"XML"}],indentSequence:"\t"})}init(){const t=this.editor,e=t.model.schema,n=t.model,o=t.editing.view,i=t.plugins.has("DocumentListEditing"),r=FD(t);t.commands.add("codeBlock",new qD(t)),t.commands.add("indentCodeBlock",new WD(t)),t.commands.add("outdentCodeBlock",new UD(t)),this.listenTo(o.document,"tab",((e,n)=>{const o=n.shiftKey?"outdentCodeBlock":"indentCodeBlock";t.commands.get(o).isEnabled&&(t.execute(o),n.stopPropagation(),n.preventDefault(),e.stop())}),{context:"pre"}),e.register("codeBlock",{allowWhere:"$block",allowChildren:"$text",isBlock:!0,allowAttributes:["language"]}),e.addAttributeCheck(((t,e)=>{const n=t.endsWith("codeBlock")&&e.startsWith("list")&&"list"!==e;return!(!i||!n)||!t.endsWith("codeBlock $text")&&void 0})),t.model.schema.addChildCheck(((t,e)=>{if(t.endsWith("codeBlock")&&e.isObject)return!1})),t.editing.downcastDispatcher.on("insert:codeBlock",GD(n,r,!0)),t.data.downcastDispatcher.on("insert:codeBlock",GD(n,r)),t.data.downcastDispatcher.on("insert:softBreak",function(t){return(e,n,o)=>{if("codeBlock"!==n.item.parent.name)return;const{writer:i,mapper:r,consumable:s}=o;if(!s.consume(n.item,"insert"))return;const a=r.toViewPosition(t.createPositionBefore(n.item));i.insert(a,i.createText("\n"))}}(n),{priority:"high"}),t.data.upcastDispatcher.on("element:code",function(t,e){const n=ND(e,"class","language"),o=e[0].language;return(t,e,i)=>{const r=e.viewItem,s=r.parent;if(!s||!s.is("element","pre"))return;if(e.modelCursor.findAncestor("codeBlock"))return;const{consumable:a,writer:l}=i;if(!a.test(r,{name:!0}))return;const c=l.createElement("codeBlock"),d=[...r.getClassNames()];d.length||d.push("");for(const t of d){const e=n[t];if(e){l.setAttribute("language",e,c);break}}c.hasAttribute("language")||l.setAttribute("language",o,c),i.convertChildren(r,c),i.safeInsert(c,e.modelCursor)&&(a.consume(r,{name:!0}),i.updateConversionResult(c,e))}}(0,r)),t.data.upcastDispatcher.on("text",((t,e,{consumable:n,writer:o})=>{let i=e.modelCursor;if(!n.test(e.viewItem))return;if(!i.findAncestor("codeBlock"))return;n.consume(e.viewItem);const r=e.viewItem.data.split("\n").map((t=>o.createText(t))),s=r[r.length-1];for(const t of r)if(o.insert(t,i),i=i.getShiftedBy(t.offsetSize),t!==s){const t=o.createElement("softBreak");o.insert(t,i),i=o.createPositionAfter(t)}e.modelRange=o.createRange(e.modelCursor,i),e.modelCursor=i})),t.data.upcastDispatcher.on("element:pre",((t,e,{consumable:n})=>{const o=e.viewItem;if(o.findAncestor("pre"))return;const i=Array.from(o.getChildren()),r=i.find((t=>t.is("element","code")));if(r)for(const t of i)t!==r&&t.is("$text")&&n.consume(t,{name:!0})}),{priority:"high"}),this.listenTo(t.editing.view.document,"clipboardInput",((e,o)=>{let i=n.createRange(n.document.selection.anchor);if(o.targetRanges&&(i=t.editing.mapper.toModelRange(o.targetRanges[0])),!i.start.parent.is("element","codeBlock"))return;const r=o.dataTransfer.getData("text/plain"),s=new ru(t.editing.view.document);o.content=function(t,e){const n=t.createDocumentFragment(),o=e.split("\n"),i=o.reduce(((e,n,i)=>(e.push(n),i<o.length-1&&e.push(t.createElement("br")),e)),[]);return t.appendChild(i,n),n}(s,r)})),this.listenTo(n,"getSelectedContent",((t,[o])=>{const i=o.anchor;!o.isCollapsed&&i.parent.is("element","codeBlock")&&i.hasSameParentAs(o.focus)&&n.change((n=>{const r=t.return;if(i.parent.is("element")&&(r.childCount>1||o.containsEntireContent(i.parent))){const e=n.createElement("codeBlock",i.parent.getAttributes());n.append(r,e);const o=n.createDocumentFragment();return n.append(e,o),void(t.return=o)}const s=r.getChild(0);e.checkAttribute(s,"code")&&n.setAttribute("code",!0,s)}))}))}afterInit(){const t=this.editor,e=t.commands,n=e.get("indent"),o=e.get("outdent");n&&n.registerChildCommand(e.get("indentCodeBlock"),{priority:"highest"}),o&&o.registerChildCommand(e.get("outdentCodeBlock")),this.listenTo(t.editing.view.document,"enter",((e,n)=>{t.model.document.selection.getLastPosition().parent.is("element","codeBlock")&&(function(t,e){const n=t.model,o=n.document,i=t.editing.view,r=o.selection.getLastPosition(),s=r.nodeAfter;if(e||!o.selection.isCollapsed||!r.isAtStart)return!1;if(!YD(s))return!1;return t.model.change((e=>{t.execute("enter");const n=o.selection.anchor.parent.previousSibling;e.rename(n,KD),e.setSelection(n,"in"),t.model.schema.removeDisallowedAttributes([n],e),e.remove(s)})),i.scrollToTheSelection(),!0}(t,n.isSoft)||function(t,e){const n=t.model,o=n.document,i=t.editing.view,r=o.selection.getLastPosition(),s=r.nodeBefore;let a;if(e||!o.selection.isCollapsed||!r.isAtEnd||!s||!s.previousSibling)return!1;if(YD(s)&&YD(s.previousSibling))a=n.createRange(n.createPositionBefore(s.previousSibling),n.createPositionAfter(s));else if(JD(s)&&YD(s.previousSibling)&&YD(s.previousSibling.previousSibling))a=n.createRange(n.createPositionBefore(s.previousSibling.previousSibling),n.createPositionAfter(s));else{if(!(JD(s)&&YD(s.previousSibling)&&JD(s.previousSibling.previousSibling)&&s.previousSibling.previousSibling&&YD(s.previousSibling.previousSibling.previousSibling)))return!1;a=n.createRange(n.createPositionBefore(s.previousSibling.previousSibling.previousSibling),n.createPositionAfter(s))}return t.model.change((e=>{e.remove(a),t.execute("enter");const n=o.selection.anchor.parent;e.rename(n,KD),t.model.schema.removeDisallowedAttributes([n],e)})),i.scrollToTheSelection(),!0}(t,n.isSoft)||function(t){const e=t.model,n=e.document,o=n.selection.getLastPosition(),i=o.nodeBefore||o.textNode;let r;i&&i.is("$text")&&(r=MD(i));t.model.change((e=>{t.execute("shiftEnter"),r&&e.insertText(r,n.selection.anchor)}))}(t),n.preventDefault(),e.stop())}),{context:"pre"})}}function JD(t){return t&&t.is("$text")&&!t.data.match(/\S/)}function YD(t){return t&&t.is("element","softBreak")}var QD=n(8343),XD={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(QD.Z,XD);QD.Z.locals;class tS extends Pi{static get pluginName(){return"CodeBlockUI"}init(){const t=this.editor,e=t.t,n=t.ui.componentFactory,o=FD(t);n.add("codeBlock",(n=>{const i=t.commands.get("codeBlock"),r=ym(n,em),s=r.buttonView;return s.set({label:e("Insert code block"),tooltip:!0,icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M12.87 12.61a.75.75 0 0 1-.089.976l-.085.07-3.154 2.254 3.412 2.414a.75.75 0 0 1 .237.95l-.057.095a.75.75 0 0 1-.95.237l-.096-.058-4.272-3.022-.003-1.223 4.01-2.867a.75.75 0 0 1 1.047.174zm2.795-.231.095.057 4.011 2.867-.003 1.223-4.272 3.022-.095.058a.75.75 0 0 1-.88-.151l-.07-.086-.058-.095a.75.75 0 0 1 .15-.88l.087-.07 3.412-2.414-3.154-2.253-.085-.071a.75.75 0 0 1 .862-1.207zM16 0a2 2 0 0 1 2 2v9.354l-.663-.492-.837-.001V2a.5.5 0 0 0-.5-.5H2a.5.5 0 0 0-.5.5v15a.5.5 0 0 0 .5.5h3.118L7.156 19H2a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h14zM5.009 15l.003 1H3v-1h2.009zm2.188-2-1.471 1H5v-1h2.197zM10 11v.095L8.668 12H7v-1h3zm4-2v1H7V9h7zm0-2v1H7V7h7zm-4-2v1H5V5h5zM6 3v1H3V3h3z"/></svg>',isToggleable:!0}),s.bind("isOn").to(i,"value",(t=>!!t)),s.on("execute",(()=>{t.execute("codeBlock",{usePreviousLanguageChoice:!0}),t.editing.view.focus()})),r.on("execute",(e=>{t.execute("codeBlock",{language:e.source._codeBlockLanguage,forceValue:!0}),t.editing.view.focus()})),r.class="ck-code-block-dropdown",r.bind("isEnabled").to(i),Tm(r,(()=>this._getLanguageListItemDefinitions(o))),r}))}_getLanguageListItemDefinitions(t){const e=this.editor.commands.get("codeBlock"),n=new vi;for(const o of t){const t={type:"button",model:new Ap({_codeBlockLanguage:o.language,label:o.label,withText:!0})};t.model.bind("isOn").to(e,"value",(e=>e===t.model._codeBlockLanguage)),n.add(t)}return n}}class eS extends zi{refresh(){const t=this.editor.model,e=t.document;this.isEnabled=t.schema.checkAttributeInSelection(e.selection,"mention")}execute(t){const e=this.editor.model,n=e.document.selection,o="string"==typeof t.mention?{id:t.mention}:t.mention,i=o.id,r=t.range||n.getFirstRange(),s=t.text||i,a=oS({_text:s,id:i},o);if(1!=t.marker.length)throw new b("mentioncommand-incorrect-marker",this);if(i.charAt(0)!=t.marker)throw new b("mentioncommand-incorrect-id",this);e.change((t=>{const o=Ti(n.getAttributes()),i=new Map(o.entries());i.set("mention",a),e.insertContent(t.createText(s,i),r),e.insertContent(t.createText(" ",o),r.start.getShiftedBy(s.length))}))}}class nS extends Pi{static get pluginName(){return"MentionEditing"}init(){const t=this.editor,e=t.model,n=e.document;e.schema.extend("$text",{allowAttributes:"mention"}),t.conversion.for("upcast").elementToAttribute({view:{name:"span",key:"data-mention",classes:"mention"},model:{key:"mention",value:t=>iS(t)}}),t.conversion.for("downcast").attributeToElement({model:"mention",view:sS}),t.conversion.for("downcast").add(rS),n.registerPostFixer((t=>function(t,e,n){const o=e.differ.getChanges();let i=!1;for(const e of o){if("attribute"==e.type)continue;const o=e.position;if("$text"==e.name){const e=o.textNode&&o.textNode.nextSibling;i=lS(o.textNode,t)||i,i=lS(e,t)||i,i=lS(o.nodeBefore,t)||i,i=lS(o.nodeAfter,t)||i}if("$text"!=e.name&&"insert"==e.type){const e=o.nodeAfter;for(const n of t.createRangeIn(e).getItems())i=lS(n,t)||i}if("insert"==e.type&&n.isInline(e.name)){const e=o.nodeAfter&&o.nodeAfter.nextSibling;i=lS(o.nodeBefore,t)||i,i=lS(e,t)||i}}return i}(t,n,e.schema))),n.registerPostFixer((t=>function(t,e){const n=e.differ.getChanges();let o=!1;for(const e of n)if("attribute"===e.type&&"mention"!=e.attributeKey){const n=e.range.start.nodeBefore,i=e.range.end.nodeAfter;for(const r of[n,i])aS(r)&&r.getAttribute(e.attributeKey)!=e.attributeNewValue&&(t.setAttribute(e.attributeKey,e.attributeNewValue,r),o=!0)}return o}(t,n))),n.registerPostFixer((t=>function(t,e){const n=e.selection,o=n.focus;if(n.isCollapsed&&n.hasAttribute("mention")&&function(t){const e=t.isAtStart;return t.nodeBefore&&t.nodeBefore.is("$text")||e}(o))return t.removeSelectionAttribute("mention"),!0;return!1}(t,n))),t.commands.add("mention",new eS(t))}}function oS(t,e){return Object.assign({uid:g()},t,e||{})}function iS(t,e){const n=t.getAttribute("data-mention"),o=t.getChild(0);if(!o)return;return oS({id:n,_text:o.data},e)}function rS(t){t.on("attribute:mention",((t,e,n)=>{const o=e.attributeNewValue;if(!e.item.is("$textProxy")||!o)return;const i=e.range.start;(i.textNode||i.nodeAfter).data!=o._text&&n.consumable.consume(e.item,t.name)}),{priority:"highest"})}function sS(t,{writer:e}){if(!t)return;const n={class:"mention","data-mention":t.id},o={id:t.uid,priority:20};return e.createAttributeElement("span",n,o)}function aS(t){if(!t||!t.is("$text")&&!t.is("$textProxy")||!t.hasAttribute("mention"))return!1;return t.data!=t.getAttribute("mention")._text}function lS(t,e){return!!aS(t)&&(e.removeAttribute("mention",t),!0)}var cS=n(7640),dS={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(cS.Z,dS);cS.Z.locals;class hS extends bm{constructor(t){super(t),this.extendTemplate({attributes:{class:["ck-mentions"],tabindex:"-1"}})}selectFirst(){this.select(0)}selectNext(){const t=this.selected,e=this.items.getIndex(t);this.select(e+1)}selectPrevious(){const t=this.selected,e=this.items.getIndex(t);this.select(e-1)}select(t){let e=0;t>0&&t<this.items.length?e=t:t<0&&(e=this.items.length-1);const n=this.items.get(e);this.selected!==n&&(this.selected&&this.selected.removeHighlight(),n.highlight(),this.selected=n,this._isItemVisibleInScrolledArea(n)||(this.element.scrollTop=n.element.offsetTop))}executeSelected(){this.selected.fire("execute")}_isItemVisibleInScrolledArea(t){return new Fo(this.element).contains(new Fo(t.element))}}class uS extends ig{constructor(t,e){super(t),this.template=void 0,this.domElement=e,this.domElement.classList.add("ck-button"),this.set("isOn",!1),this.on("change:isOn",((t,e,n)=>{n?(this.domElement.classList.add("ck-on"),this.domElement.classList.remove("ck-off")):(this.domElement.classList.add("ck-off"),this.domElement.classList.remove("ck-on"))})),this.listenTo(this.domElement,"click",(()=>{this.fire("execute")}))}render(){super.render(),this.element=this.domElement}}class gS extends km{highlight(){this.children.first.isOn=!0}removeHighlight(){this.children.first.isOn=!1}}var mS=Object.defineProperty,pS=Object.defineProperties,fS=Object.getOwnPropertyDescriptors,bS=Object.getOwnPropertySymbols,kS=Object.prototype.hasOwnProperty,wS=Object.prototype.propertyIsEnumerable,_S=(t,e,n)=>e in t?mS(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;const AS=[ui.arrowup,ui.arrowdown,ui.esc],CS=[ui.enter,ui.tab];class vS extends Pi{constructor(t){super(t),this._items=new vi,this._mentionsView=this._createMentionView(),this._mentionsConfigurations=new Map,this._requestFeedDebounced=Ra(this._requestFeed,100),t.config.define("mention",{feeds:[]})}static get pluginName(){return"MentionUI"}static get requires(){return[Dp]}init(){const t=this.editor,e=t.config.get("mention.commitKeys")||CS,n=AS.concat(e);this._balloon=t.plugins.get(Dp),t.editing.view.document.on("keydown",((t,o)=>{if(i=o.keyCode,n.includes(i)&&this._isUIVisible){if(o.keyCode==ui.space)return void this._hideUIAndRemoveMarker();o.preventDefault(),t.stop(),o.keyCode==ui.arrowdown&&this._mentionsView.selectNext(),o.keyCode==ui.arrowup&&this._mentionsView.selectPrevious(),e.includes(o.keyCode)&&this._mentionsView.executeSelected(),o.keyCode==ui.esc&&this._hideUIAndRemoveMarker()}var i}),{priority:"highest"}),Yu({emitter:this._mentionsView,activator:()=>this._isUIVisible,contextElements:()=>[this._balloon.view.element],callback:()=>this._hideUIAndRemoveMarker()});const o=t.config.get("mention.feeds");for(const t of o){const{feed:e,marker:n,dropdownLimit:o}=t;if(!DS(n))throw new b("mentionconfig-incorrect-marker",null,{marker:n});const i={marker:n,feedCallback:"function"==typeof e?e.bind(this.editor):TS(e),itemRenderer:t.itemRenderer,dropdownLimit:o};this._mentionsConfigurations.set(n,i)}this._setupTextWatcher(o),this.listenTo(t,"change:isReadOnly",(()=>{this._hideUIAndRemoveMarker()})),this.on("requestFeed:response",((t,e)=>this._handleFeedResponse(e))),this.on("requestFeed:error",(()=>this._hideUIAndRemoveMarker()))}destroy(){super.destroy(),this._mentionsView.destroy()}get _isUIVisible(){return this._balloon.visibleView===this._mentionsView}_createMentionView(){const t=this.editor.locale,e=new hS(t);return e.items.bindTo(this._items).using((n=>{const{item:o,marker:i}=n,{dropdownLimit:r}=this._mentionsConfigurations.get(i),s=r||this.editor.config.get("mention.dropdownLimit")||10;if(e.items.length>=s)return null;const a=new gS(t),l=this._renderItem(o,i);return l.delegate("execute").to(a),a.children.add(l),a.item=o,a.marker=i,a.on("execute",(()=>{e.fire("execute",{item:o,marker:i})})),a})),e.on("execute",((t,e)=>{const n=this.editor,o=n.model,i=e.item,r=e.marker,s=n.model.markers.get("mention"),a=o.createPositionAt(o.document.selection.focus),l=o.createPositionAt(s.getStart()),c=o.createRange(l,a);this._hideUIAndRemoveMarker(),n.execute("mention",{mention:i,text:i.text,marker:r,range:c}),n.editing.view.focus()})),e}_getItemRenderer(t){const{itemRenderer:e}=this._mentionsConfigurations.get(t);return e}_requestFeed(t,e){this._lastRequested=e;const{feedCallback:n}=this._mentionsConfigurations.get(t),o=n(e);o instanceof Promise?o.then((n=>{this._lastRequested==e?this.fire("requestFeed:response",{feed:n,marker:t,feedText:e}):this.fire("requestFeed:discarded",{feed:n,marker:t,feedText:e})})).catch((e=>{this.fire("requestFeed:error",{error:e}),k("mention-feed-callback-error",{marker:t})})):this.fire("requestFeed:response",{feed:o,marker:t,feedText:e})}_setupTextWatcher(t){const e=this.editor,n=t.map((t=>{return e=((t,e)=>{for(var n in e||(e={}))kS.call(e,n)&&_S(t,n,e[n]);if(bS)for(var n of bS(e))wS.call(e,n)&&_S(t,n,e[n]);return t})({},t),n={pattern:ES(t.marker,t.minimumCharacters||0)},pS(e,fS(n));var e,n})),o=new $f(e.model,function(t){const e=e=>{const n=xS(t,e);if(!n)return!1;let o=0;0!==n.position&&(o=n.position-1);const i=e.substring(o);return n.pattern.test(i)};return e}(n));o.on("matched:data",((t,o)=>{const i=xS(n,o.text),r=e.model.document.selection.focus,s=e.model.createPositionAt(r.parent,i.position);if(function(t){const e=t.textNode&&t.textNode.hasAttribute("mention"),n=t.nodeBefore;return e||n&&n.is("$text")&&n.hasAttribute("mention")}(r)||function(t){const e=t.nodeAfter;return e&&e.is("$text")&&e.hasAttribute("mention")}(s))return void this._hideUIAndRemoveMarker();const a=function(t,e){let n=0;0!==t.position&&(n=t.position-1);const o=ES(t.marker,0),i=e.substring(n);return i.match(o)[2]}(i,o.text),l=i.marker.length+a.length,c=r.getShiftedBy(-l),d=r.getShiftedBy(-a.length),h=e.model.createRange(c,d);if(SS(e)){const t=e.model.markers.get("mention");e.model.change((e=>{e.updateMarker(t,{range:h})}))}else e.model.change((t=>{t.addMarker("mention",{range:h,usingOperation:!1,affectsData:!1})}));this._requestFeedDebounced(i.marker,a)})),o.on("unmatched",(()=>{this._hideUIAndRemoveMarker()}));const i=e.commands.get("mention");return o.bind("isEnabled").to(i),o}_handleFeedResponse(t){const{feed:e,marker:n}=t;if(!SS(this.editor))return;this._items.clear();for(const t of e){const e="object"!=typeof t?{id:t,text:t}:t;this._items.add({item:e,marker:n})}const o=this.editor.model.markers.get("mention");this._items.length?this._showOrUpdateUI(o):this._hideUIAndRemoveMarker()}_showOrUpdateUI(t){this._isUIVisible?this._balloon.updatePosition(this._getBalloonPanelPositionData(t,this._mentionsView.position)):this._balloon.add({view:this._mentionsView,position:this._getBalloonPanelPositionData(t,this._mentionsView.position),singleViewMode:!0}),this._mentionsView.position=this._balloon.view.position,this._mentionsView.selectFirst()}_hideUIAndRemoveMarker(){this._balloon.hasView(this._mentionsView)&&this._balloon.remove(this._mentionsView),SS(this.editor)&&this.editor.model.change((t=>t.removeMarker("mention"))),this._mentionsView.position=void 0}_renderItem(t,e){const n=this.editor;let o,i=t.id;const r=this._getItemRenderer(e);if(r){const e=r(t);"string"!=typeof e?o=new uS(n.locale,e):i=e}if(!o){const t=new Rg(n.locale);t.label=i,t.withText=!0,o=t}return o}_getBalloonPanelPositionData(t,e){const n=this.editor,o=n.editing,i=o.view.domConverter,r=o.mapper;return{target:()=>{let e=t.getRange();"$graveyard"==e.start.root.rootName&&(e=n.model.document.selection.getFirstRange());const o=r.toViewRange(e);return Fo.getDomRangeRects(i.viewRangeToDom(o)).pop()},limiter:()=>{const t=this.editor.editing.view,e=t.document.selection.editableElement;return e?t.domConverter.mapViewToDom(e.root):null},positions:yS(e,n.locale.uiLanguageDirection)}}}function yS(t,e){const n={caret_se:t=>({top:t.bottom+3,left:t.right,name:"caret_se",config:{withArrow:!1}}),caret_ne:(t,e)=>({top:t.top-e.height-3,left:t.right,name:"caret_ne",config:{withArrow:!1}}),caret_sw:(t,e)=>({top:t.bottom+3,left:t.right-e.width,name:"caret_sw",config:{withArrow:!1}}),caret_nw:(t,e)=>({top:t.top-e.height-3,left:t.right-e.width,name:"caret_nw",config:{withArrow:!1}})};return Object.prototype.hasOwnProperty.call(n,t)?[n[t]]:"rtl"!==e?[n.caret_se,n.caret_sw,n.caret_ne,n.caret_nw]:[n.caret_sw,n.caret_se,n.caret_nw,n.caret_ne]}function xS(t,e){let n;for(const o of t){const t=e.lastIndexOf(o.marker);t>0&&!e.substring(t-1).match(o.pattern)||(!n||t>=n.position)&&(n={marker:o.marker,position:t,minimumCharacters:o.minimumCharacters,pattern:o.pattern})}return n}function ES(t,e){const n=0==e?"*":`{${e},}`,o=i.features.isRegExpUnicodePropertySupported?"\\p{Ps}\\p{Pi}\"'":"\\(\\[{\"'";return new RegExp(`(?:^|[= ${o}])([${t}])([^=]${n})$`,"u")}function TS(t){return e=>t.filter((t=>("string"==typeof t?t:String(t.id)).toLowerCase().includes(e.toLowerCase())))}function DS(t){return t&&1==t.length}function SS(t){return t.model.markers.has("mention")}var BS=n(5023),IS={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(BS.Z,IS);BS.Z.locals;class PS extends Pi{static get pluginName(){return"IndentEditing"}init(){const t=this.editor;t.commands.add("indent",new Oi(t)),t.commands.add("outdent",new Oi(t))}}const RS='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zM1.632 6.95 5.02 9.358a.4.4 0 0 1-.013.661l-3.39 2.207A.4.4 0 0 1 1 11.892V7.275a.4.4 0 0 1 .632-.326z"/></svg>',zS='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zm1.618-9.55L.98 9.358a.4.4 0 0 0 .013.661l3.39 2.207A.4.4 0 0 0 5 11.892V7.275a.4.4 0 0 0-.632-.326z"/></svg>';class VS extends Pi{static get pluginName(){return"IndentUI"}init(){const t=this.editor,e=t.locale,n=t.t,o="ltr"==e.uiLanguageDirection?RS:zS,i="ltr"==e.uiLanguageDirection?zS:RS;this._defineButton("indent",n("Increase indent"),o),this._defineButton("outdent",n("Decrease indent"),i)}_defineButton(t,e,n){const o=this.editor;o.ui.componentFactory.add(t,(i=>{const r=o.commands.get(t),s=new Rg(i);return s.set({label:e,icon:n,tooltip:!0}),s.bind("isEnabled").to(r,"isEnabled"),this.listenTo(s,"execute",(()=>{o.execute(t),o.editing.view.focus()})),s}))}}class OS extends zi{constructor(t,e){super(t),this._indentBehavior=e}refresh(){const t=this.editor.model,e=yi(t.document.selection.getSelectedBlocks());e&&t.schema.checkAttribute(e,"blockIndent")?this.isEnabled=this._indentBehavior.checkEnabled(e.getAttribute("blockIndent")):this.isEnabled=!1}execute(){const t=this.editor.model,e=function(t){const e=t.document.selection,n=t.schema;return Array.from(e.getSelectedBlocks()).filter((t=>n.checkAttribute(t,"blockIndent")))}(t);t.change((t=>{for(const n of e){const e=n.getAttribute("blockIndent"),o=this._indentBehavior.getNextIndent(e);o?t.setAttribute("blockIndent",o,n):t.removeAttribute("blockIndent",n)}}))}}class FS{constructor(t){this.isForward="forward"===t.direction,this.offset=t.offset,this.unit=t.unit}checkEnabled(t){const e=parseFloat(t||"0");return this.isForward||e>0}getNextIndent(t){const e=parseFloat(t||"0");if(!(!t||t.endsWith(this.unit)))return this.isForward?this.offset+this.unit:void 0;const n=e+(this.isForward?this.offset:-this.offset);return n>0?n+this.unit:void 0}}class NS{constructor(t){this.isForward="forward"===t.direction,this.classes=t.classes}checkEnabled(t){const e=this.classes.indexOf(t);return this.isForward?e<this.classes.length-1:e>=0}getNextIndent(t){const e=this.classes.indexOf(t),n=this.isForward?1:-1;return this.classes[e+n]}}const MS=["paragraph","heading1","heading2","heading3","heading4","heading5","heading6"];class LS extends zi{constructor(t){super(t),this.affectsData=!1}execute(){const t=this.editor.model,e=t.document.selection;let n=t.schema.getLimitElement(e);if(e.containsEntireContent(n)||!HS(t.schema,n))do{if(n=n.parent,!n)return}while(!HS(t.schema,n));t.change((t=>{t.setSelection(n,"in")}))}}function HS(t,e){return t.isLimit(e)&&(t.checkChild(e,"$text")||t.checkChild(e,"paragraph"))}const jS=pi("Ctrl+A");class qS extends Pi{static get pluginName(){return"SelectAllEditing"}init(){const t=this.editor,e=t.editing.view.document;t.commands.add("selectAll",new LS(t)),this.listenTo(e,"keydown",((e,n)=>{mi(n)===jS&&(t.execute("selectAll"),n.preventDefault())}))}}class WS extends Pi{static get pluginName(){return"SelectAllUI"}init(){const t=this.editor;t.ui.componentFactory.add("selectAll",(e=>{const n=t.commands.get("selectAll"),o=new Rg(e),i=e.t;return o.set({label:i("Select all"),icon:'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"><path d="M.75 15.5a.75.75 0 0 1 .75.75V18l.008.09A.5.5 0 0 0 2 18.5h1.75a.75.75 0 1 1 0 1.5H1.5l-.144-.007a1.5 1.5 0 0 1-1.35-1.349L0 18.5v-2.25a.75.75 0 0 1 .75-.75zm18.5 0a.75.75 0 0 1 .75.75v2.25l-.007.144a1.5 1.5 0 0 1-1.349 1.35L18.5 20h-2.25a.75.75 0 1 1 0-1.5H18a.5.5 0 0 0 .492-.41L18.5 18v-1.75a.75.75 0 0 1 .75-.75zm-10.45 3c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm.45-5.5a.75.75 0 1 1 0 1.5h-8.5a.75.75 0 1 1 0-1.5h8.5zM1.3 11c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5H4.75a.75.75 0 1 1 0-1.5h10.5zM1.3 7c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5h-2.5a.75.75 0 1 1 0-1.5h2.5zm-5 0a.75.75 0 1 1 0 1.5h-5.5a.75.75 0 0 1 0-1.5h5.5zm-6.5-5a.75.75 0 0 1 0 1.5H2a.5.5 0 0 0-.492.41L1.5 2v1.75a.75.75 0 0 1-1.5 0V1.5l.007-.144A1.5 1.5 0 0 1 1.356.006L1.5 0h2.25zM18.5 0l.144.007a1.5 1.5 0 0 1 1.35 1.349L20 1.5v2.25a.75.75 0 1 1-1.5 0V2l-.008-.09A.5.5 0 0 0 18 1.5h-1.75a.75.75 0 1 1 0-1.5h2.25zM8.8 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6z"/></svg>',keystroke:"Ctrl+A",tooltip:!0}),o.bind("isEnabled").to(n,"isEnabled"),this.listenTo(o,"execute",(()=>{t.execute("selectAll"),t.editing.view.focus()})),o}))}}class US extends Pi{static get requires(){return[qS,WS]}static get pluginName(){return"SelectAll"}}class $S extends zi{refresh(){const t=this.editor.model,e=t.schema,n=t.document.selection;this.isEnabled=function(t,e,n){const o=function(t,e){const n=zk(t,e),o=n.start.parent;if(o.isEmpty&&!o.is("element","$root"))return o.parent;return o}(t,n);return e.checkChild(o,"horizontalLine")}(n,e,t)}execute(){const t=this.editor.model;t.change((e=>{const n=e.createElement("horizontalLine");t.insertObject(n,null,null,{setSelection:"after"})}))}}var GS=n(2974),KS={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(GS.Z,KS);GS.Z.locals;class ZS extends Pi{static get pluginName(){return"HorizontalLineEditing"}init(){const t=this.editor,e=t.model.schema,n=t.t,o=t.conversion;e.register("horizontalLine",{inheritAllFrom:"$blockObject"}),o.for("dataDowncast").elementToElement({model:"horizontalLine",view:(t,{writer:e})=>e.createEmptyElement("hr")}),o.for("editingDowncast").elementToStructure({model:"horizontalLine",view:(t,{writer:e})=>{const o=n("Horizontal line"),i=e.createContainerElement("div",null,e.createEmptyElement("hr"));return e.addClass("ck-horizontal-line",i),e.setCustomProperty("hr",!0,i),function(t,e,n){return e.setCustomProperty("horizontalLine",!0,t),Sk(t,e,{label:n})}(i,e,o)}}),o.for("upcast").elementToElement({view:"hr",model:"horizontalLine"}),t.commands.add("horizontalLine",new $S(t))}}class JS extends Pi{static get pluginName(){return"HorizontalLineUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("horizontalLine",(n=>{const o=t.commands.get("horizontalLine"),i=new Rg(n);return i.set({label:e("Horizontal line"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2 9h16v2H2z"/></svg>',tooltip:!0}),i.bind("isEnabled").to(o,"isEnabled"),this.listenTo(i,"execute",(()=>{t.execute("horizontalLine"),t.editing.view.focus()})),i}))}}var YS=Object.defineProperty,QS=Object.getOwnPropertySymbols,XS=Object.prototype.hasOwnProperty,tB=Object.prototype.propertyIsEnumerable,eB=(t,e,n)=>e in t?YS(t,e,{enumerable:!0,configurable:!0,writable:!0,value:n}):t[e]=n;class nB extends zi{constructor(t){super(t),this._stack=[],this._createdBatches=new WeakSet,this.refresh(),this.listenTo(t.data,"set",((t,e)=>{e[1]=((t,e)=>{for(var n in e||(e={}))XS.call(e,n)&&eB(t,n,e[n]);if(QS)for(var n of QS(e))tB.call(e,n)&&eB(t,n,e[n]);return t})({},e[1]);const n=e[1];n.batchType||(n.batchType={isUndoable:!1})}),{priority:"high"}),this.listenTo(t.data,"set",((t,e)=>{e[1].batchType.isUndoable||this.clearStack()}))}refresh(){this.isEnabled=this._stack.length>0}get createdBatches(){return this._createdBatches}addBatch(t){const e=this.editor.model.document.selection,n={ranges:e.hasOwnRange?Array.from(e.getRanges()):[],isBackward:e.isBackward};this._stack.push({batch:t,selection:n}),this.refresh()}clearStack(){this._stack=[],this.refresh()}_restoreSelection(t,e,n){const o=this.editor.model,i=o.document,r=[],s=t.map((t=>t.getTransformedByOperations(n))),a=s.flat();for(const t of s){const e=t.filter((t=>t.root!=i.graveyard)).filter((t=>!iB(t,a)));e.length&&(oB(e),r.push(e[0]))}r.length&&o.change((t=>{t.setSelection(r,{backward:e})}))}_undo(t,e){const n=this.editor.model,o=n.document;this._createdBatches.add(e);const i=t.operations.slice().filter((t=>t.isDocumentOperation));i.reverse();for(const t of i){const i=t.baseVersion+1,r=Array.from(o.history.getOperations(i)),s=qd([t.getReversed()],r,{useRelations:!0,document:this.editor.model.document,padWithNoOps:!1,forceWeakRemove:!0}).operationsA;for(const i of s)e.addOperation(i),n.applyOperation(i),o.history.setOperationAsUndone(t,i)}}}function oB(t){t.sort(((t,e)=>t.start.isBefore(e.start)?-1:1));for(let e=1;e<t.length;e++){const n=t[e-1].getJoined(t[e],!0);n&&(e--,t.splice(e,2,n))}}function iB(t,e){return e.some((e=>e!==t&&e.containsRange(t,!0)))}class rB extends nB{execute(t=null){const e=t?this._stack.findIndex((e=>e.batch==t)):this._stack.length-1,n=this._stack.splice(e,1)[0],o=this.editor.model.createBatch({isUndo:!0});this.editor.model.enqueueChange(o,(()=>{this._undo(n.batch,o);const t=this.editor.model.document.history.getOperations(n.batch.baseVersion);this._restoreSelection(n.selection.ranges,n.selection.isBackward,t),this.fire("revert",n.batch,o)})),this.refresh()}}class sB extends nB{execute(){const t=this._stack.pop(),e=this.editor.model.createBatch({isUndo:!0});this.editor.model.enqueueChange(e,(()=>{const n=t.batch.operations[t.batch.operations.length-1].baseVersion+1,o=this.editor.model.document.history.getOperations(n);this._restoreSelection(t.selection.ranges,t.selection.isBackward,o),this._undo(t.batch,e)})),this.refresh()}}class aB extends Pi{constructor(){super(...arguments),this._batchRegistry=new WeakSet}static get pluginName(){return"UndoEditing"}init(){const t=this.editor;this._undoCommand=new rB(t),this._redoCommand=new sB(t),t.commands.add("undo",this._undoCommand),t.commands.add("redo",this._redoCommand),this.listenTo(t.model,"applyOperation",((t,e)=>{const n=e[0];if(!n.isDocumentOperation)return;const o=n.batch,i=this._redoCommand.createdBatches.has(o),r=this._undoCommand.createdBatches.has(o);this._batchRegistry.has(o)||(this._batchRegistry.add(o),o.isUndoable&&(i?this._undoCommand.addBatch(o):r||(this._undoCommand.addBatch(o),this._redoCommand.clearStack())))}),{priority:"highest"}),this.listenTo(this._undoCommand,"revert",((t,e,n)=>{this._redoCommand.addBatch(n)})),t.keystrokes.set("CTRL+Z","undo"),t.keystrokes.set("CTRL+Y","redo"),t.keystrokes.set("CTRL+SHIFT+Z","redo")}}const lB='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m5.042 9.367 2.189 1.837a.75.75 0 0 1-.965 1.149l-3.788-3.18a.747.747 0 0 1-.21-.284.75.75 0 0 1 .17-.945L6.23 4.762a.75.75 0 1 1 .964 1.15L4.863 7.866h8.917A.75.75 0 0 1 14 7.9a4 4 0 1 1-1.477 7.718l.344-1.489a2.5 2.5 0 1 0 1.094-4.73l.008-.032H5.042z"/></svg>',cB='<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m14.958 9.367-2.189 1.837a.75.75 0 0 0 .965 1.149l3.788-3.18a.747.747 0 0 0 .21-.284.75.75 0 0 0-.17-.945L13.77 4.762a.75.75 0 1 0-.964 1.15l2.331 1.955H6.22A.75.75 0 0 0 6 7.9a4 4 0 1 0 1.477 7.718l-.344-1.489A2.5 2.5 0 1 1 6.039 9.4l-.008-.032h8.927z"/></svg>';class dB extends Pi{static get pluginName(){return"UndoUI"}init(){const t=this.editor,e=t.locale,n=t.t,o="ltr"==e.uiLanguageDirection?lB:cB,i="ltr"==e.uiLanguageDirection?cB:lB;this._addButton("undo",n("Undo"),"CTRL+Z",o),this._addButton("redo",n("Redo"),"CTRL+Y",i)}_addButton(t,e,n,o){const i=this.editor;i.ui.componentFactory.add(t,(r=>{const s=i.commands.get(t),a=new Rg(r);return a.set({label:e,icon:o,keystroke:n,tooltip:!0}),a.bind("isEnabled").to(s,"isEnabled"),this.listenTo(a,"execute",(()=>{i.execute(t),i.editing.view.focus()})),a}))}}class hB extends Pi{static get requires(){return[aB,dB]}static get pluginName(){return"Undo"}}const uB="removeFormat";class gB extends Pi{static get pluginName(){return"RemoveFormatUI"}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(uB,(n=>{const o=t.commands.get(uB),i=new Rg(n);return i.set({label:e("Remove Format"),icon:'<svg viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M8.69 14.915c.053.052.173.083.36.093a.366.366 0 0 1 .345.485l-.003.01a.738.738 0 0 1-.697.497h-2.67a.374.374 0 0 1-.353-.496l.013-.038a.681.681 0 0 1 .644-.458c.197-.012.325-.043.386-.093a.28.28 0 0 0 .072-.11L9.592 4.5H6.269c-.359-.017-.609.013-.75.09-.142.078-.289.265-.442.563-.192.29-.516.464-.864.464H4.17a.43.43 0 0 1-.407-.569L4.46 3h13.08l-.62 2.043a.81.81 0 0 1-.775.574h-.114a.486.486 0 0 1-.486-.486c.001-.284-.054-.464-.167-.54-.112-.076-.367-.106-.766-.091h-3.28l-2.68 10.257c-.006.074.007.127.038.158zM3 17h8a.5.5 0 1 1 0 1H3a.5.5 0 1 1 0-1zm11.299 1.17a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.06-1.06l1.415 1.414 1.414-1.415a.75.75 0 1 1 1.06 1.06l-1.413 1.415 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414-1.414 1.414z"/></svg>',tooltip:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>{t.execute(uB),t.editing.view.focus()})),i}))}}class mB extends zi{refresh(){const t=this.editor.model;this.isEnabled=!!yi(this._getFormattingItems(t.document.selection,t.schema))}execute(){const t=this.editor.model,e=t.schema;t.change((n=>{for(const o of this._getFormattingItems(t.document.selection,e))if(o.is("selection"))for(const t of this._getFormattingAttributes(o,e))n.removeSelectionAttribute(t);else{const t=n.createRangeOn(o);for(const i of this._getFormattingAttributes(o,e))n.removeAttribute(i,t)}}))}*_getFormattingItems(t,e){const n=t=>!!yi(this._getFormattingAttributes(t,e));for(const o of t.getRanges())for(const t of o.getItems())!e.isBlock(t)&&n(t)&&(yield t);for(const e of t.getSelectedBlocks())n(e)&&(yield e);n(t)&&(yield t)}*_getFormattingAttributes(t,e){for(const[n]of t.getAttributes()){const t=e.getAttributeProperties(n);t&&t.isFormatting&&(yield n)}}}class pB extends Pi{static get pluginName(){return"RemoveFormatEditing"}init(){const t=this.editor;t.commands.add("removeFormat",new mB(t))}}class fB extends zi{execute(t){const{model:e}=this.editor,{document:n}=e,{selection:o}=n,{mention:i}=t,r=t.range||o.getFirstRange();if(i.id.startsWith("#")||i.id.startsWith("~"))e.change((t=>{e.insertContent(t.createText(i.id,{}),r)}));else if("create-note"===i.action){const t=this.editor.editing.view.getDomRoot();glob.getComponentByEl(t).createNoteForReferenceLink(i.noteTitle).then((t=>{this.insertReference(r,t)}))}else this.insertReference(r,t.mention.notePath)}insertReference(t,e){const{model:n}=this.editor;n.change((o=>{n.insertContent(o.createText("",{}),t),this.editor.execute("referenceLink",{notePath:e})}))}}class bB{constructor(t){this.loader=t}upload(){return this.loader.file.then((t=>new Promise(((e,n)=>{this._initRequest().then((()=>{this._initListeners(e,n,t),this._sendRequest(t)}))}))))}abort(){this.xhr&&this.xhr.abort()}_initRequest(){return glob.getHeaders().then((t=>{const e=this.xhr=new XMLHttpRequest,{noteId:n}=glob.getActiveTabNote(),o="api/images?noteId="+n;e.open("POST",o,!0),e.responseType="json";for(const n in t)e.setRequestHeader(n,t[n])}))}async _initListeners(t,e){const n=this.xhr,o=this.loader,i=`Cannot upload file: ${(await o.file).name}.`;n.addEventListener("error",(()=>e(i))),n.addEventListener("abort",(()=>e())),n.addEventListener("load",(()=>{const o=n.response;if(!o||!o.uploaded)return e(o&&o.error&&o.error.message?o.error.message:i);t({default:o.url})})),n.upload&&n.upload.addEventListener("progress",(t=>{t.lengthComputable&&(o.uploadTotal=t.total,o.uploaded=t.loaded)}))}async _sendRequest(){const t=new FormData;t.append("upload",await this.loader.file),this.xhr.send(t)}}class kB extends Pi{init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("includeNote",(n=>{const o=t.commands.get("insertIncludeNote"),i=new Rg(n);return i.set({label:e("Include note"),icon:'<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path d="M19,3H5C3.897,3,3,3.897,3,5v14c0,1.103,0.897,2,2,2h8c0.131,0,0.26-0.026,0.381-0.076s0.232-0.123,0.326-0.217l7-7 c0.086-0.086,0.147-0.187,0.196-0.293c0.014-0.03,0.022-0.061,0.033-0.093c0.028-0.084,0.046-0.17,0.051-0.259 C20.989,13.041,21,13.021,21,13V5C21,3.897,20.103,3,19,3z M5,5h14v7h-6c-0.553,0-1,0.448-1,1v6H5V5z M14,17.586V14h3.586 L14,17.586z"/></svg>',tooltip:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",(()=>t.execute("insertIncludeNote"))),i}))}}class wB extends Pi{static get requires(){return[Yk]}init(){this._defineSchema(),this._defineConverters(),this.editor.commands.add("insertIncludeNote",new _B(this.editor))}_defineSchema(){this.editor.model.schema.register("includeNote",{isObject:!0,allowAttributes:["noteId","boxSize"],allowWhere:"$block"})}_defineConverters(){const t=this.editor,e=t.conversion;e.for("upcast").elementToElement({model:(t,{writer:e})=>e.createElement("includeNote",{noteId:t.getAttribute("data-note-id"),boxSize:t.getAttribute("data-box-size")}),view:{name:"section",classes:"include-note"}}),e.for("dataDowncast").elementToElement({model:"includeNote",view:(t,{writer:e})=>e.createContainerElement("section",{class:"include-note","data-note-id":t.getAttribute("noteId"),"data-box-size":t.getAttribute("boxSize")})}),e.for("editingDowncast").elementToElement({model:"includeNote",view:(e,{writer:n})=>{const o=e.getAttribute("noteId"),i=e.getAttribute("boxSize"),r=n.createContainerElement("section",{class:"include-note box-size-"+i,"data-note-id":o,"data-box-size":i}),s=n.createUIElement("div",{class:"include-note-wrapper"},(function(e){const n=this.toDomElement(e),i=t.editing.view.getDomRoot();return glob.getComponentByEl(i).loadIncludedNote(o,$(n)),function(t,e){function n(t){t.stopPropagation(),e.editing.view._renderer.isFocused=!1}t.addEventListener("mousedown",n,{capture:!0}),t.addEventListener("focus",n,{capture:!0}),t.addEventListener("keydown",n,{capture:!0})}(n,t),n}));return n.insert(n.createPositionAt(r,0),s),Sk(r,n,{label:"include note widget"})}})}}class _B extends zi{execute(){const t=this.editor.editing.view.getDomRoot();glob.getComponentByEl(t).triggerCommand("addIncludeNoteToText")}refresh(){const t=this.editor.model,e=t.document.selection,n=t.schema.findAllowedParent(e.getFirstPosition(),"includeNote");this.isEnabled=null!==n}}class AB extends zi{execute({notePath:t}){if(!t||!t.trim())return;const e=this.editor,n=t.split("/").pop();glob.treeCache.getNote(n,!0).then((()=>{e.model.change((n=>{const o=n.createElement("reference",{notePath:t});e.model.insertContent(o),n.setSelection(o,"after")}))}))}refresh(){const t=this.editor.model,e=t.document.selection;this.isEnabled=t.schema.checkChild(e.focus.parent,"reference")}}class CB extends Pi{static get requires(){return[Yk]}init(){this._defineSchema(),this._defineConverters(),this.editor.commands.add("referenceLink",new AB(this.editor)),this.editor.editing.mapper.on("viewToModelPosition",Vk(this.editor.model,(t=>t.hasClass("reference-link"))))}_defineSchema(){this.editor.model.schema.register("reference",{allowWhere:"$text",isInline:!0,isObject:!0,allowAttributes:["notePath"]})}_defineConverters(){const t=this.editor,e=t.conversion;e.for("upcast").elementToElement({view:{name:"a",classes:["reference-link"]},model:(t,{writer:e})=>{let n=t.getAttribute("data-note-path");return n||(n=t.getAttribute("href")),e.createElement("reference",{notePath:n})}}),e.for("editingDowncast").elementToElement({model:"reference",view:(e,{writer:n})=>{let o=e.getAttribute("notePath");o||(o=e.getAttribute("href"));const i=n.createContainerElement("a",{href:"javascript:",class:"reference-link","data-note-path":o},{renderUnsafeAttributes:["href"]}),r=n.createUIElement("span",{},(function(e){const n=this.toDomElement(e),i=o.split("/").pop(),r=t.editing.view.getDomRoot();return glob.getComponentByEl(r).loadReferenceLinkTitle(i,$(n)),n}));return n.insert(n.createPositionAt(i,0),r),Sk(i,n)}}),e.for("dataDowncast").elementToElement({model:"reference",view:(t,{writer:e})=>{let n=t.getAttribute("notePath");n||(n=t.getAttribute("href"));const o=e.createContainerElement("a",{href:"#"+n,class:"reference-link","data-note-path":n}),i=n.split("/").pop(),r=glob.treeCache.getNoteFromCache(i);if(r){const t=e.createText(r.title);e.insert(e.createPositionAt(o,0),t)}return o}})}}function vB(t){return t.match(/^(\\\[.*?\\\]|\\\(.*?\\\))$/)}function yB(t){const e=(t=t.trim()).includes("\\(")&&t.includes("\\)"),n=t.includes("\\[")&&t.includes("\\]");return(e||n)&&(t=t.substring(2,t.length-2).trim()),{equation:t,display:n}}async function xB(t,e,n="katex",o,i=!1,r=!1,s,a=[],l={}){if("mathjax"===n&&"undefined"!=typeof MathJax)!function(t){return t&&"string"==typeof t&&3===t.split(".").length&&"3"===t.split(".")[0]}(MathJax.version)?TB(e,r,s,a,(n=>{Io.window.setTimeout((()=>{!function(t,e,n){e.innerHTML=n?"\\["+t+"\\]":"\\("+t+"\\)";MathJax.Hub.Queue(["Typeset",MathJax.Hub,e])}(t,n,i),r&&MathJax.Hub.Queue((()=>{DB(e,n),n.style.visibility="visible"}))}))})):TB(e,r,s,a,(n=>{!function(t,e,n,o){let i;void 0!==MathJax.tex2chtmlPromise?i=MathJax.tex2chtmlPromise:void 0!==MathJax.tex2svgPromise&&(i=MathJax.tex2svgPromise);void 0!==i&&i(t,{display:n}).then((t=>{e.firstChild&&e.removeChild(e.firstChild),e.appendChild(t),o()}))}(t,n,i,(()=>{r&&(DB(e,n),n.style.visibility="visible")}))}));else if("katex"===n&&"undefined"!=typeof katex)TB(e,r,s,a,(n=>{katex.render(t,n,{throwOnError:!1,displayMode:i,...l}),r&&(DB(e,n),n.style.visibility="visible")}));else if("function"==typeof n)n(t,e,i);else if(void 0!==o)try{Io.window.CKEDITOR_MATH_LAZY_LOAD||(Io.window.CKEDITOR_MATH_LAZY_LOAD=o()),e.innerHTML=t,await Io.window.CKEDITOR_MATH_LAZY_LOAD,xB(t,e,n,void 0,i,r,s,a,l)}catch(n){e.innerHTML=t,console.error(`math-tex-typesetting-lazy-load-failed: Lazy load failed: ${n}`)}else e.innerHTML=t,console.warn(`math-tex-typesetting-missing: Missing the mathematical typesetting engine (${n}) for tex.`)}function EB(t){const e=t.editing.view,n=Hm.defaultPositions,o=e.document.selection.getSelectedElement();if(o)return{target:e.domConverter.viewToDom(o),positions:[n.southArrowNorth,n.southArrowNorthWest,n.southArrowNorthEast]};{const t=e.document;return{target:e.domConverter.viewRangeToDom(t.selection.getFirstRange()),positions:[n.southArrowNorth,n.southArrowNorthWest,n.southArrowNorthEast]}}}function TB(t,e,n,o,i){e?function(t,e,n,o){const i=function(t,e,n){let o=Io.document.getElementById(e);if(!o){o=Io.document.createElement("div"),o.setAttribute("id",e),o.classList.add(...n),o.style.visibility="hidden",Io.document.body.appendChild(o);let i=!1;const r=()=>{i||(Io.window.requestAnimationFrame((()=>{SB(t,o),i=!1})),i=!0)};Io.window.addEventListener("resize",r),Io.window.addEventListener("scroll",r)}return o}(t,e,n);o(i)}(t,n,o,(t=>{i(t)})):i(t)}function DB(t,e){SB(t,e);const n=e.getBoundingClientRect();t.style.width=n.width+"px",t.style.height=n.height+"px"}function SB(t,e){const n=t.getBoundingClientRect(),o=Io.window.scrollX+n.left,i=Io.window.scrollY+n.top;e.style.position="absolute",e.style.left=o+"px",e.style.top=i+"px",e.style.zIndex="var(--ck-z-modal)",e.style.pointerEvents="none"}class BB extends zi{execute(t,e,n,o){const i=this.editor.model,r=i.document.selection.getSelectedElement();i.change((s=>{let a;if(r&&(r.is("element","mathtex-inline")||r.is("element","mathtex-display"))){const i=r.getAttribute("type"),l=o?n:i||n;a=s.createElement(e?"mathtex-display":"mathtex-inline",{equation:t,type:l,display:e})}else a=s.createElement(e?"mathtex-display":"mathtex-inline",{equation:t,type:n,display:e});i.insertContent(a)}))}refresh(){const t=this.editor.model.document.selection,e=t.getSelectedElement();this.isEnabled=null===e||e.is("element","mathtex-inline")||e.is("element","mathtex-display");const n=function(t){const e=t.getSelectedElement();return e&&(e.is("element","mathtex-inline")||e.is("element","mathtex-display"))?e:null}(t);this.value=n?n.getAttribute("equation"):null,this.display=n?n.getAttribute("display"):null}}class IB extends Pi{static get requires(){return[Yk]}static get pluginName(){return"MathEditing"}constructor(t){super(t),t.config.define("math",{engine:"mathjax",outputType:"script",className:"math-tex",forceOutputType:!1,enablePreview:!0,previewClassName:[],popupClassName:[],katexRenderOptions:{}})}init(){const t=this.editor;t.commands.add("math",new BB(t)),this._defineSchema(),this._defineConverters(),t.editing.mapper.on("viewToModelPosition",Vk(t.model,(t=>t.hasClass("math"))))}_defineSchema(){const t=this.editor.model.schema;t.register("mathtex-inline",{allowWhere:"$text",isInline:!0,isObject:!0,allowAttributes:["equation","type","display"]}),t.register("mathtex-display",{allowWhere:"$block",isInline:!1,isObject:!0,allowAttributes:["equation","type","display"]})}_defineConverters(){const t=this.editor.conversion,e=this.editor.config.get("math");function n(t,n){const o=t.getAttribute("equation"),i=t.getAttribute("display"),r="user-select: none; "+(i?"":"display: inline-block;"),s="ck-math-tex "+(i?"ck-math-tex-display":"ck-math-tex-inline"),a=n.createContainerElement(i?"div":"span",{style:r,class:s}),l=n.createUIElement("div",null,(function(t){const n=this.toDomElement(t);return xB(o,n,e.engine,e.lazyLoad,i,!1,e.previewClassName,null,e.katexRenderOptions),n}));return n.insert(n.createPositionAt(a,0),l),a}function o(t,{writer:n}){const o=t.getAttribute("equation"),i=t.getAttribute("type"),r=t.getAttribute("display");if("span"===i){const t=n.createContainerElement("span",{class:e.className});return r?n.insert(n.createPositionAt(t,0),n.createText("\\["+o+"\\]")):n.insert(n.createPositionAt(t,0),n.createText("\\("+o+"\\)")),t}{const t=n.createContainerElement("script",{type:r?"math/tex; mode=display":"math/tex"});return n.insert(n.createPositionAt(t,0),n.createText(o)),t}}t.for("upcast").elementToElement({view:{name:"script",attributes:{type:"math/tex"}},model:(t,{writer:n})=>{const o=t.getChild(0).data.trim();return n.createElement("mathtex-inline",{equation:o,type:e.forceOutputType?e.outputType:"script",display:!1})}}).elementToElement({view:{name:"script",attributes:{type:"math/tex; mode=display"}},model:(t,{writer:n})=>{const o=t.getChild(0).data.trim();return n.createElement("mathtex-display",{equation:o,type:e.forceOutputType?e.outputType:"script",display:!0})}}).elementToElement({view:{name:"span",classes:[e.className]},model:(t,{writer:n})=>{const o=t.getChild(0).data.trim(),i=Object.assign(yB(o),{type:e.forceOutputType?e.outputType:"span"});return n.createElement(i.display?"mathtex-display":"mathtex-inline",i)}}).elementToElement({view:{name:"span",classes:["ql-formula"]},model:(t,{writer:n})=>{const o=t.getAttribute("data-value").trim();return n.createElement("mathtex-inline",{equation:o,type:e.forceOutputType?e.outputType:"script",display:!1})}}),t.for("editingDowncast").elementToElement({model:"mathtex-inline",view:(t,{writer:e})=>Sk(n(t,e),e,"span")}).elementToElement({model:"mathtex-display",view:(t,{writer:e})=>Sk(n(t,e),e,"div")}),t.for("dataDowncast").elementToElement({model:"mathtex-inline",view:o}).elementToElement({model:"mathtex-display",view:o})}}class PB extends ig{constructor(t,e,n,o,i,r){super(n),this.engine=t,this.lazyLoad=e,this.previewUid=o,this.katexRenderOptions=r,this.previewClassName=i,this.set("value",""),this.set("display",!1),this.on("change",(()=>{this.isRendered&&this.updateMath()})),this.setTemplate({tag:"div",attributes:{class:["ck","ck-math-preview"]}})}updateMath(){xB(this.value,this.element,this.engine,this.lazyLoad,this.display,!0,this.previewUid,this.previewClassName,this.katexRenderOptions)}render(){super.render(),this.updateMath()}}var RB=n(4722),zB={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(RB.Z,zB);RB.Z.locals;const{check:VB,cancel:OB}=Ju;class FB extends ig{constructor(t,e,n,o,i,r,s,a){super(t);const l=t.t;this._createKeyAndFocusTrackers(),this.saveButtonView=this._createButton(l("Save"),VB,"ck-button-save",null),this.saveButtonView.type="submit",this.mathInputView=this._createMathInput(),this.displayButtonView=this._createDisplayButton(),this.cancelButtonView=this._createButton(l("Cancel"),OB,"ck-button-cancel","cancel"),this.previewEnabled=o;let c=[];this.previewEnabled?(this.previewLabel=new op(t),this.previewLabel.text=l("Equation preview"),this.mathView=new PB(e,n,t,i,r,a),this.mathView.bind("display").to(this.displayButtonView,"isOn"),c=[this.mathInputView,this.displayButtonView,this.previewLabel,this.mathView]):c=[this.mathInputView,this.displayButtonView],this.setTemplate({tag:"form",attributes:{class:["ck","ck-math-form",...s],tabindex:"-1",spellcheck:"false"},children:[{tag:"div",attributes:{class:["ck-math-view"]},children:c},this.saveButtonView,this.cancelButtonView]})}render(){super.render(),Xu({view:this});[this.mathInputView,this.displayButtonView,this.saveButtonView,this.cancelButtonView].forEach((t=>{this._focusables.add(t),this.focusTracker.add(t.element)})),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}get equation(){return this.mathInputView.fieldView.element.value}set equation(t){this.mathInputView.fieldView.element.value=t,this.previewEnabled&&(this.mathView.value=t)}_createKeyAndFocusTrackers(){this.focusTracker=new xi,this.keystrokes=new Ei,this._focusables=new eg,this._focusCycler=new nm({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}})}_createMathInput(){const t=this.locale.t,e=new fp(this.locale,bp),n=e.fieldView;e.infoText=t("Insert equation in TeX format.");const o=()=>{if(null!=n.element){let t=n.element.value.trim();if(vB(t)){const e=yB(t);n.element.value=e.equation,t=e.equation,this.displayButtonView.isOn=e.display}this.previewEnabled&&(this.mathView.value=t),this.saveButtonView.isEnabled=!!t}};return n.on("render",o),n.on("input",o),e}_createButton(t,e,n,o){const i=new Rg(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}_createDisplayButton(){const t=this.locale.t,e=new Og(this.locale);return e.set({label:t("Display mode"),withText:!0}),e.extendTemplate({attributes:{class:"ck-button-display-toggle"}}),e.on("execute",(()=>{e.isOn=!e.isOn,this.previewEnabled&&(this.mathView.display=e.isOn)})),e}}const NB="Ctrl+M";class MB extends Pi{static get requires(){return[Dp,IB]}static get pluginName(){return"MathUI"}init(){const t=this.editor;t.editing.view.addObserver(ou),this._previewUid=`math-preview-${g()}`,this.formView=this._createFormView(),this._balloon=t.plugins.get(Dp),this._createToolbarMathButton(),this._enableUserBalloonInteractions()}destroy(){super.destroy(),this.formView.destroy();const t=Io.document.getElementById(this._previewUid);t&&t.parentNode.removeChild(t)}_showUI(){this.editor.commands.get("math").isEnabled&&(this._addFormView(),this._balloon.showStack("main"))}_createFormView(){const t=this.editor,e=t.commands.get("math"),n=t.config.get("math"),o=new FB(t.locale,n.engine,n.lazyLoad,n.enablePreview,this._previewUid,n.previewClassName,n.popupClassName,n.katexRenderOptions);return o.mathInputView.bind("value").to(e,"value"),o.displayButtonView.bind("isOn").to(e,"display"),o.mathInputView.bind("isReadOnly").to(e,"isEnabled",(t=>!t)),o.saveButtonView.bind("isEnabled").to(e),o.displayButtonView.bind("isEnabled").to(e),this.listenTo(o,"submit",(()=>{t.execute("math",o.equation,o.displayButtonView.isOn,n.outputType,n.forceOutputType),this._closeFormView()})),this.listenTo(o,"cancel",(()=>{this._closeFormView()})),o.keystrokes.set("esc",((t,e)=>{this._closeFormView(),e()})),o}_addFormView(){if(this._isFormInPanel)return;const t=this.editor,e=t.commands.get("math");this._balloon.add({view:this.formView,position:EB(t)}),this._balloon.visibleView===this.formView&&this.formView.mathInputView.fieldView.element.select();Io.document.getElementById(this._previewUid)&&this.formView.previewEnabled&&this.formView.mathView.updateMath(),this.formView.equation=e.value||"",this.formView.displayButtonView.isOn=e.display||!1}_hideUI(){if(!this._isFormInPanel)return;const t=this.editor;this.stopListening(t.ui,"update"),this.stopListening(this._balloon,"change:visibleView"),t.editing.view.focus(),this._removeFormView()}_closeFormView(){void 0!==this.editor.commands.get("math").value?this._removeFormView():this._hideUI()}_removeFormView(){if(this._isFormInPanel){this.formView.saveButtonView.focus(),this._balloon.remove(this.formView);const t=Io.document.getElementById(this._previewUid);t&&(t.style.visibility="hidden"),this.editor.editing.view.focus()}}_createToolbarMathButton(){const t=this.editor,e=t.commands.get("math"),n=t.t;t.keystrokes.set(NB,((t,n)=>{n(),e.isEnabled&&this._showUI()})),this.editor.ui.componentFactory.add("math",(t=>{const o=new Rg(t);return o.isEnabled=!0,o.label=n("Insert math"),o.icon='<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 15.44 10.78" height="40.74" width="58.35"><path d="M8.15 0c-.06 0-.1.02-.11.03a.12.12 0 0 0-.02.01 6.81 6.81 0 0 0-2.32 4.9v.9a6.82 6.82 0 0 0 2.32 4.9.12.12 0 0 0 .02 0c.02.02.06.04.11.04.07 0 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0-.18.06c-.05.05-.06.1-.07.14-.34 1.1-1.02 1.3-1.3 1.3-.17 0-.27-.06-.35-.17a.72.72 0 0 1-.11-.4c0-.22.06-.45.18-.91l.36-1.45c.03-.14.1-.44.25-.7.15-.25.36-.46.68-.46.03 0 .12 0 .22.03a.7.7 0 0 0-.32.56c0 .11.04.23.13.33.08.1.22.16.4.16.14 0 .3-.06.44-.18a.73.73 0 0 0 .24-.55c0-.32-.2-.54-.42-.66a1.52 1.52 0 0 0-.68-.16c-.34 0-.62.16-.82.34a1.8 1.8 0 0 0-.3.35 1.32 1.32 0 0 0-.5-.54 1.37 1.37 0 0 0-.63-.15z" style="line-height:1.25;-inkscape-font-specification:\'Latin Modern Math\'" font-weight="400" font-size="10.58" font-family="Latin Modern Math" letter-spacing="-1.06" word-spacing="0"/></svg>\n',o.keystroke=NB,o.tooltip=!0,o.isToggleable=!0,o.bind("isEnabled").to(e,"isEnabled"),this.listenTo(o,"execute",(()=>this._showUI())),o}))}_enableUserBalloonInteractions(){const t=this.editor,e=this.editor.editing.view.document;this.listenTo(e,"click",(()=>{const e=t.commands.get("math");e.value&&e.isEnabled&&this._showUI()})),t.keystrokes.set("Esc",((t,e)=>{this._isUIVisible&&(this._hideUI(),e())})),Yu({emitter:this.formView,activator:()=>this._isFormInPanel,contextElements:[this._balloon.view.element],callback:()=>this._hideUI()})}get _isUIVisible(){return this._balloon.visibleView==this.formView}get _isFormInPanel(){return this._balloon.hasView(this.formView)}}class LB extends Pi{static get requires(){return[Gw,hB]}static get pluginName(){return"AutoMath"}constructor(t){super(t),this._timeoutId=null,this._positionToInsert=null}init(){const t=this.editor,e=t.model.document;this.listenTo(t.plugins.get(Gw),"inputTransformation",(()=>{const t=e.selection.getFirstRange(),n=Jd.fromPosition(t.start);n.stickiness="toPrevious";const o=Jd.fromPosition(t.end);o.stickiness="toNext",e.once("change:data",(()=>{this._mathBetweenPositions(n,o),n.detach(),o.detach()}),{priority:"high"})})),t.commands.get("undo").on("execute",(()=>{this._timeoutId&&(Io.window.clearTimeout(this._timeoutId),this._positionToInsert.detach(),this._timeoutId=null,this._positionToInsert=null)}),{priority:"high"})}_mathBetweenPositions(t,e){const n=this.editor,o=this.editor.config.get("math"),i=new Jl(t,e),r=i.getWalker({ignoreElementEnd:!0});let s="";for(const t of r)t.item.is("$textProxy")&&(s+=t.item.data);if(s=s.trim(),!vB(s)||2!==function(t){return t.match(/(\\\[|\\\]|\\\(|\\\))/g).length}(s))return;n.commands.get("math").isEnabled&&(this._positionToInsert=Jd.fromPosition(t),this._timeoutId=Io.window.setTimeout((()=>{n.model.change((t=>{let e;this._timeoutId=null,t.remove(i),"$graveyard"!==this._positionToInsert.root.rootName&&(e=this._positionToInsert),n.model.change((t=>{const i=Object.assign(yB(s),{type:o.outputType}),r=t.createElement(i.display?"mathtex-display":"mathtex-inline",i);n.model.insertContent(r,e),t.setSelection(r,"on")})),this._positionToInsert.detach(),this._positionToInsert=null}))}),100))}}class HB extends Pi{static get requires(){return[IB,MB,LB,Yk]}static get pluginName(){return"Math"}}var jB=n(7657),qB={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};ji()(jB.Z,qB);jB.Z.locals;window.EditorWatchdog=$p;class WB extends Qp{}WB.builtinPlugins=[Gw,Kb,US,Qb,class extends Pi{static get requires(){return[Vf,Wf]}static get pluginName(){return"Typing"}},hB,class extends Pi{static get requires(){return[vf]}static get pluginName(){return"CKFinderUploadAdapter"}init(){const t=this.editor.config.get("ckfinder.uploadUrl");t&&(this.editor.plugins.get(vf).createUploadAdapter=e=>new Bf(e,t,this.editor.t))}},class extends Pi{static get requires(){return[Wf]}static get pluginName(){return"Autoformat"}afterInit(){this._addListAutoformats(),this._addBasicStylesAutoformats(),this._addHeadingAutoformats(),this._addBlockQuoteAutoformats(),this._addCodeBlockAutoformats(),this._addHorizontalLineAutoformats()}_addListAutoformats(){const t=this.editor.commands;t.get("bulletedList")&&lb(this.editor,this,/^[*-]\s$/,"bulletedList"),t.get("numberedList")&&lb(this.editor,this,/^1[.|)]\s$/,"numberedList"),t.get("todoList")&&lb(this.editor,this,/^\[\s?\]\s$/,"todoList"),t.get("checkTodoList")&&lb(this.editor,this,/^\[\s?x\s?\]\s$/,(()=>{this.editor.execute("todoList"),this.editor.execute("checkTodoList")}))}_addBasicStylesAutoformats(){const t=this.editor.commands;if(t.get("bold")){const t=hb(this.editor,"bold");cb(this.editor,this,/(?:^|\s)(\*\*)([^*]+)(\*\*)$/g,t),cb(this.editor,this,/(?:^|\s)(__)([^_]+)(__)$/g,t)}if(t.get("italic")){const t=hb(this.editor,"italic");cb(this.editor,this,/(?:^|\s)(\*)([^*_]+)(\*)$/g,t),cb(this.editor,this,/(?:^|\s)(_)([^_]+)(_)$/g,t)}if(t.get("code")){const t=hb(this.editor,"code");cb(this.editor,this,/(`)([^`]+)(`)$/g,t)}if(t.get("strikethrough")){const t=hb(this.editor,"strikethrough");cb(this.editor,this,/(~~)([^~]+)(~~)$/g,t)}}_addHeadingAutoformats(){const t=this.editor.commands.get("heading");t&&t.modelElements.filter((t=>t.match(/^heading[1-6]$/))).forEach((e=>{const n=e[7],o=new RegExp(`^(#{${n}})\\s$`);lb(this.editor,this,o,(()=>{if(!t.isEnabled||t.value===e)return!1;this.editor.execute("heading",{value:e})}))}))}_addBlockQuoteAutoformats(){this.editor.commands.get("blockQuote")&&lb(this.editor,this,/^>\s$/,"blockQuote")}_addCodeBlockAutoformats(){const t=this.editor,e=t.model.document.selection;t.commands.get("codeBlock")&&lb(t,this,/^```$/,(()=>{if(e.getFirstPosition().parent.is("element","listItem"))return!1;this.editor.execute("codeBlock",{usePreviousLanguageChoice:!0})}))}_addHorizontalLineAutoformats(){this.editor.commands.get("horizontalLine")&&lb(this.editor,this,/^---$/,"horizontalLine")}},class extends Pi{static get requires(){return[mb,fb]}static get pluginName(){return"Bold"}},class extends Pi{static get requires(){return[kb,_b]}static get pluginName(){return"Italic"}},class extends Pi{static get requires(){return[Bb,Pb]}static get pluginName(){return"Underline"}},class extends Pi{static get requires(){return[zb,Ob]}static get pluginName(){return"Strikethrough"}},class extends Pi{static get requires(){return[Nb,jb]}static get pluginName(){return"Code"}},class extends Pi{static get requires(){return[Cb,yb]}static get pluginName(){return"Superscript"}},class extends Pi{static get requires(){return[Eb,Db]}static get pluginName(){return"Subscript"}},class extends Pi{static get requires(){return[ok,sk]}static get pluginName(){return"BlockQuote"}},class extends Pi{static get requires(){return[fk,_k]}static get pluginName(){return"Heading"}},class extends Pi{static get requires(){return[d_,u_]}static get pluginName(){return"Image"}},class extends Pi{static get requires(){return[p_,f_]}static get pluginName(){return"ImageCaption"}},class extends Pi{static get requires(){return[M_,j_]}static get pluginName(){return"ImageStyle"}},class extends Pi{static get requires(){return[Xk,Ew]}static get pluginName(){return"ImageToolbar"}afterInit(){const t=this.editor,e=t.t,n=t.plugins.get(Xk),o=t.plugins.get("ImageUtils");var i;n.register("image",{ariaLabel:e("Image toolbar"),items:(i=t.config.get("image.toolbar")||[],i.map((t=>V(t)?t.name:t))),getRelatedElement:t=>o.getClosestSelectedImageWidget(t)})}},class extends Pi{static get pluginName(){return"ImageUpload"}static get requires(){return[fA,Z_,nA]}},class extends Pi{static get requires(){return[wA,xA,AA]}static get pluginName(){return"ImageResize"}},class extends Pi{static get requires(){return[wC,BC,RC]}static get pluginName(){return"Link"}},RC,class extends Pi{static get requires(){return[mv,kv]}static get pluginName(){return"List"}},class extends Pi{static get requires(){return[vv,Fv]}static get pluginName(){return"ListProperties"}},class extends Pi{static get requires(){return[$v,Gv]}static get pluginName(){return"TodoList"}},hk,class extends Pi{static get pluginName(){return"PasteFromOffice"}static get requires(){return[Nw]}init(){const t=this.editor,e=t.plugins.get("ClipboardPipeline"),n=t.editing.view.document,o=[];o.push(new ly(n)),o.push(new oy(n)),e.on("inputTransformation",((e,i)=>{if(i._isTransformedWithPasteFromOffice)return;if(t.model.document.selection.getFirstPosition().parent.is("element","codeBlock"))return;const r=i.dataTransfer.getData("text/html"),s=o.find((t=>t.isActive(r)));s&&(i._parsedData=dy(r,n.stylesProcessor),s.execute(i),i._isTransformedWithPasteFromOffice=!0)}),{priority:"high"})}},class extends Pi{static get requires(){return[r_,Ew]}static get pluginName(){return"PictureEditing"}afterInit(){const t=this.editor;t.plugins.has("ImageBlockEditing")&&t.model.schema.extend("imageBlock",{allowAttributes:["sources"]}),t.plugins.has("ImageInlineEditing")&&t.model.schema.extend("imageInline",{allowAttributes:["sources"]}),this._setupConversion(),this._setupImageUploadEditingIntegration()}_setupConversion(){const t=this.editor,e=t.conversion,n=t.plugins.get("ImageUtils");e.for("upcast").add(function(t){const e=["srcset","media","type","sizes"],n=(n,o,i)=>{const r=o.viewItem;if(!i.consumable.test(r,{name:!0}))return;const s=new Map;for(const t of r.getChildren())if(t.is("element","source")){const n={};for(const o of e)t.hasAttribute(o)&&i.consumable.test(t,{attributes:o})&&(n[o]=t.getAttribute(o));Object.keys(n).length&&s.set(t,n)}const a=t.findViewImgElement(r);if(!a)return;let l=o.modelCursor.parent;if(!l.is("element","imageBlock")){const t=i.convertItem(a,o.modelCursor);o.modelRange=t.modelRange,o.modelCursor=t.modelCursor,l=yi(t.modelRange.getItems())}i.consumable.consume(r,{name:!0});for(const[t,e]of s)i.consumable.consume(t,{attributes:Object.keys(e)});s.size&&i.writer.setAttribute("sources",Array.from(s.values()),l),i.convertChildren(r,l)};return t=>{t.on("element:picture",n)}}(n)),e.for("downcast").add(function(t){const e=(e,n,o)=>{if(!o.consumable.consume(n.item,e.name))return;const i=o.writer,r=o.mapper.toViewElement(n.item),s=t.findViewImgElement(r),a=n.attributeNewValue;if(a&&a.length){const t=i.createContainerElement("picture",null,a.map((t=>i.createEmptyElement("source",t)))),e=[];let n=s.parent;for(;n&&n.is("attributeElement");){const t=n.parent;i.unwrap(i.createRangeOn(s),n),e.unshift(n),n=t}i.insert(i.createPositionBefore(s),t),i.move(i.createRangeOn(s),i.createPositionAt(t,"end"));for(const n of e)i.wrap(i.createRangeOn(t),n)}else if(s.parent.is("element","picture")){const t=s.parent;i.move(i.createRangeOn(s),i.createPositionBefore(t)),i.remove(t)}};return t=>{t.on("attribute:sources:imageBlock",e),t.on("attribute:sources:imageInline",e)}}(n))}_setupImageUploadEditingIntegration(){const t=this.editor;if(!t.plugins.has("ImageUploadEditing"))return;const e=t.plugins.get("ImageUploadEditing");this.listenTo(e,"uploadComplete",((e,{imageElement:n,data:o})=>{const i=o.sources;i&&t.model.change((t=>{t.setAttributes({sources:i},n)}))}))}},class extends Pi{static get requires(){return[xx,Bx,zx,Hx,Mx,Vx,Yk]}static get pluginName(){return"Table"}},class extends Pi{static get requires(){return[Xk]}static get pluginName(){return"TableToolbar"}afterInit(){const t=this.editor,e=t.t,n=t.plugins.get(Xk),o=t.config.get("table.contentToolbar"),i=t.config.get("table.tableToolbar");o&&n.register("tableContent",{ariaLabel:e("Table toolbar"),items:o,getRelatedElement:$x}),i&&n.register("table",{ariaLabel:e("Table toolbar"),items:i,getRelatedElement:Ux})}},class extends Pi{static get pluginName(){return"TableProperties"}static get requires(){return[kE,eT]}},class extends Pi{static get pluginName(){return"TableCellProperties"}static get requires(){return[CT,lT]}},zx,class extends Pi{static get pluginName(){return"TableCaption"}static get requires(){return[ST,BT]}},class extends Pi{static get requires(){return[ZT,hT]}static get pluginName(){return"TableColumnResize"}},class extends Pi{static get pluginName(){return"Indent"}static get requires(){return[PS,VS]}},class extends Pi{constructor(t){super(t),t.config.define("indentBlock",{offset:40,unit:"px"})}static get pluginName(){return"IndentBlock"}init(){const t=this.editor,e=t.config.get("indentBlock");e.classes&&e.classes.length?(this._setupConversionUsingClasses(e.classes),t.commands.add("indentBlock",new OS(t,new NS({direction:"forward",classes:e.classes}))),t.commands.add("outdentBlock",new OS(t,new NS({direction:"backward",classes:e.classes})))):(t.data.addStyleProcessorRules(qu),this._setupConversionUsingOffset(),t.commands.add("indentBlock",new OS(t,new FS({direction:"forward",offset:e.offset,unit:e.unit}))),t.commands.add("outdentBlock",new OS(t,new FS({direction:"backward",offset:e.offset,unit:e.unit}))))}afterInit(){const t=this.editor,e=t.model.schema,n=t.commands.get("indent"),o=t.commands.get("outdent"),i=t.config.get("heading.options");(i&&i.map((t=>t.model))||MS).forEach((t=>{e.isRegistered(t)&&e.extend(t,{allowAttributes:"blockIndent"})})),e.setAttributeProperties("blockIndent",{isFormatting:!0}),n.registerChildCommand(t.commands.get("indentBlock")),o.registerChildCommand(t.commands.get("outdentBlock"))}_setupConversionUsingOffset(){const t=this.editor.conversion,e="rtl"===this.editor.locale.contentLanguageDirection?"margin-right":"margin-left";t.for("upcast").attributeToAttribute({view:{styles:{[e]:/[\s\S]+/}},model:{key:"blockIndent",value:t=>t.getStyle(e)}}),t.for("downcast").attributeToAttribute({model:"blockIndent",view:t=>({key:"style",value:{[e]:t}})})}_setupConversionUsingClasses(t){const e={model:{key:"blockIndent",values:[]},view:{}};for(const n of t)e.model.values.push(n),e.view[n]={key:"class",value:[n]};this.editor.conversion.attributeToAttribute(e)}},class extends Pi{constructor(t){super(t),this._resizeObserver=null,this._blockToolbarConfig=sm(this.editor.config.get("blockToolbar")),this.toolbarView=this._createToolbarView(),this.panelView=this._createPanelView(),this.buttonView=this._createButtonView(),Yu({emitter:this.panelView,contextElements:[this.panelView.element,this.buttonView.element],activator:()=>this.panelView.isVisible,callback:()=>this._hidePanel()})}static get pluginName(){return"BlockToolbar"}init(){const t=this.editor;this.listenTo(t.model.document.selection,"change:range",((t,e)=>{e.directChange&&this._hidePanel()})),this.listenTo(t.ui,"update",(()=>this._updateButton())),this.listenTo(t,"change:isReadOnly",(()=>this._updateButton()),{priority:"low"}),this.listenTo(t.ui.focusTracker,"change:isFocused",(()=>this._updateButton())),this.listenTo(this.buttonView,"change:isVisible",((t,e,n)=>{n?this.buttonView.listenTo(window,"resize",(()=>this._updateButton())):(this.buttonView.stopListening(window,"resize"),this._hidePanel())})),t.ui.addToolbar(this.toolbarView,{beforeFocus:()=>this._showPanel(),afterBlur:()=>this._hidePanel()})}afterInit(){const t=this.editor.ui.componentFactory,e=this._blockToolbarConfig;this.toolbarView.fillFromConfig(e,t);for(const t of this.toolbarView.items)t.on("execute",(()=>this._hidePanel(!0)),{priority:"high"});e.shouldNotGroupWhenFull||this.listenTo(this.editor,"ready",(()=>{const t=this.editor.ui.view.editable.element;this._resizeObserver=new jo(t,(()=>{this.toolbarView.maxWidth=this._getToolbarMaxWidth()}))}))}destroy(){super.destroy(),this.panelView.destroy(),this.buttonView.destroy(),this.toolbarView.destroy(),this._resizeObserver&&this._resizeObserver.destroy()}_createToolbarView(){const t=this.editor.locale.t,e=!this._blockToolbarConfig.shouldNotGroupWhenFull,n=new hm(this.editor.locale,{shouldGroupWhenFull:e,isFloating:!0});return n.ariaLabel=t("Editor block content toolbar"),n.focusTracker.on("change:isFocused",((t,e,n)=>{n||this._hidePanel()})),n}_createPanelView(){const t=this.editor,e=new Hm(t.locale);return e.content.add(this.toolbarView),e.class="ck-toolbar-container",t.ui.view.body.add(e),t.ui.focusTracker.add(e.element),this.toolbarView.keystrokes.set("Esc",((t,e)=>{this._hidePanel(!0),e()})),e}_createButtonView(){const t=this.editor,e=t.t,n=new Np(t.locale),o=n.bindTemplate;return n.set({label:e("Edit block"),icon:Lp,withText:!1}),n.extendTemplate({on:{mousedown:o.to((t=>{i.isSafari&&this.panelView.isVisible&&this.toolbarView.focus(),t.preventDefault()}))}}),n.bind("isOn").to(this.panelView,"isVisible"),n.bind("tooltip").to(this.panelView,"isVisible",(t=>!t)),this.listenTo(n,"execute",(()=>{this.panelView.isVisible?this._hidePanel(!0):this._showPanel()})),t.ui.view.body.add(n),t.ui.focusTracker.add(n.element),n}_updateButton(){const t=this.editor,e=t.model,n=t.editing.view;if(!t.ui.focusTracker.isFocused)return void this._hideButton();if(t.isReadOnly)return void this._hideButton();const o=Array.from(e.document.selection.getSelectedBlocks())[0];if(!o||Array.from(this.toolbarView.items).every((t=>!t.isEnabled)))return void this._hideButton();const i=n.domConverter.mapViewToDom(t.editing.mapper.toViewElement(o));this.buttonView.isVisible=!0,this._attachButtonToElement(i),this.panelView.isVisible&&this._showPanel()}_hideButton(){this.buttonView.isVisible=!1}_showPanel(){if(!this.buttonView.isVisible)return;const t=this.panelView.isVisible;this.panelView.show(),this.toolbarView.maxWidth=this._getToolbarMaxWidth(),this.panelView.pin({target:this.buttonView.element,limiter:this.editor.ui.getEditableElement()}),t||this.toolbarView.items.get(0).focus()}_hidePanel(t){this.panelView.isVisible=!1,t&&this.editor.editing.view.focus()}_attachButtonToElement(t){const e=window.getComputedStyle(t),n=new Fo(this.editor.ui.getEditableElement()),o=parseInt(e.paddingTop,10),i=parseInt(e.lineHeight,10)||1.2*parseInt(e.fontSize,10),r=Jo({element:this.buttonView.element,target:t,positions:[(t,e)=>{let r;return r="ltr"===this.editor.locale.uiLanguageDirection?n.left-e.width:n.right,{top:t.top+o+(i-e.height)/2,left:r}}]});this.buttonView.top=r.top,this.buttonView.left=r.left}_getToolbarMaxWidth(){const t=this.editor.ui.view.editable.element,e=new Fo(t),n=new Fo(this.buttonView.element),o="rtl"===this.editor.locale.uiLanguageDirection?n.left-e.right+n.width:e.left-n.left;return Mp(e.width+o)}},class extends Pi{static get requires(){return[hk]}init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("paragraph",(n=>{const o=new Rg(n),i=t.commands.get("paragraph");return o.label=e("Paragraph"),o.icon=uk,o.tooltip=!0,o.isToggleable=!0,o.bind("isEnabled").to(i),o.bind("isOn").to(i,"value"),o.on("execute",(()=>{t.execute("paragraph")})),o}))}},class extends Pi{init(){bk(this.editor).filter((t=>"paragraph"!==t.model)).map((t=>this._createButton(t)))}_createButton(t){const e=this.editor;e.ui.componentFactory.add(t.model,(n=>{const o=new Rg(n),i=e.commands.get("heading");return o.label=t.title,o.icon=t.icon||QT[t.model],o.tooltip=!0,o.isToggleable=!0,o.bind("isEnabled").to(i),o.bind("isOn").to(i,"value",(e=>e==t.model)),o.on("execute",(()=>{e.execute("heading",{value:t.model}),e.editing.view.focus()})),o}))}},class extends Pi{static get requires(){return[vf]}static get pluginName(){return"UploadimagePlugin"}init(){this.editor.plugins.get("FileRepository").createUploadAdapter=t=>new bB(t)}},class extends Pi{init(){const t=this.editor;t.ui.componentFactory.add("internalLink",(e=>{const n=new Rg(e);return n.set({label:"Internal Trilium link (CTRL-L)",icon:'<?xml version="1.0" encoding="UTF-8" standalone="no"?>\n\x3c!-- Created with Inkscape (http://www.inkscape.org/) --\x3e\n\n<svg\n   viewBox="0 0 1000 1000"\n   version="1.1"\n   id="svg52"\n   sodipodi:docname="trilium.svg"\n   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"\n   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"\n   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diff --git a/libraries/ckeditor/ckeditor.js.map b/libraries/ckeditor/ckeditor.js.map
index 21e8b0df9..89c64a73c 100644
--- a/libraries/ckeditor/ckeditor.js.map
+++ b/libraries/ckeditor/ckeditor.js.map
@@ -1 +1 @@
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{\\n\\t\\t\\t\\tflex-basis: 100%;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-label {\\n\\t\\t\\t\\tflex-basis: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& .ck-button {\\n\\t\\t\\tflex-basis: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck-math-tex.ck-placeholder::before {\\n\\tdisplay: none !important;\\n}\\n\\n.ck.ck-toolbar-container {\\n\\tz-index: calc(var(--ck-z-modal) + 2);\\n}\\n\",\"@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-math-form {\\n    padding: var(--ck-spacing-standard);\\n\\n    &:focus {\\n\\t\\t/* https://github.com/ckeditor/ckeditor5-link/issues/90 */\\n\\t\\toutline: none;\\n\\t}\\n\\n    @mixin ck-dir ltr {\\n\\t\\t& > :not(:first-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir rtl {\\n\\t\\t& > :not(:last-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tpadding: 0;\\n\\n\\t\\t& .ck-labeled-input {\\n\\t\\t\\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\\n\\n\\t\\t\\t& .ck-input-text {\\n\\t\\t\\t\\tmin-width: 0;\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n        & .ck-label {\\n            margin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\\n        }\\n\\n\\t\\t& .ck-math-view {\\n\\t\\t\\t& .ck-button {\\n\\t\\t\\t\\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck.ck-math-preview {\\n\\t\\t\\t\\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& > .ck-button {\\n\\t\\t\\tpadding: var(--ck-spacing-standard);\\n\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\n\\t\\t\\tborder-radius: 0;\\n\\t\\t\\tborder: 0;\\n\\t\\t\\tborder-top: 1px solid var(--ck-color-base-border);\\n\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t\\t&:first-of-type {\\n\\t\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t\\t&:last-of-type {\\n\\t\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content code{background-color:hsla(0,0%,78%,.3);border-radius:2px;padding:.15em}.ck.ck-editor__editable .ck-code_selected{background-color:hsla(0,0%,78%,.5)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-basic-styles/theme/code.css\"],\"names\":[],\"mappings\":\"AAKA,iBACC,kCAAuC,CAEvC,iBAAkB,CADlB,aAED,CAEA,0CACC,kCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content code {\\n\\tbackground-color: hsla(0, 0%, 78%, 0.3);\\n\\tpadding: .15em;\\n\\tborder-radius: 2px;\\n}\\n\\n.ck.ck-editor__editable .ck-code_selected  {\\n\\tbackground-color: hsla(0, 0%, 78%, 0.5);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content blockquote{border-left:5px solid #ccc;font-style:italic;margin-left:0;margin-right:0;overflow:hidden;padding-left:1.5em;padding-right:1.5em}.ck-content[dir=rtl] blockquote{border-left:0;border-right:5px solid #ccc}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-block-quote/theme/blockquote.css\"],\"names\":[],\"mappings\":\"AAKA,uBAWC,0BAAsC,CADtC,iBAAkB,CAFlB,aAAc,CACd,cAAe,CAPf,eAAgB,CAIhB,kBAAmB,CADnB,mBAOD,CAEA,gCACC,aAAc,CACd,2BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content blockquote {\\n\\t/* See #12 */\\n\\toverflow: hidden;\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-block-quote/issues/15 */\\n\\tpadding-right: 1.5em;\\n\\tpadding-left: 1.5em;\\n\\n\\tmargin-left: 0;\\n\\tmargin-right: 0;\\n\\tfont-style: italic;\\n\\tborder-left: solid 5px hsl(0, 0%, 80%);\\n}\\n\\n.ck-content[dir=\\\"rtl\\\"] blockquote {\\n\\tborder-left: 0;\\n\\tborder-right: solid 5px hsl(0, 0%, 80%);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-find-result{background:var(--ck-color-highlight-background);color:var(--ck-color-text)}.ck-find-result_selected{background:#ff9633}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-find-and-replace/theme/findandreplace.css\"],\"names\":[],\"mappings\":\"AAKA,gBACC,+CAAgD,CAChD,0BACD,CAEA,yBACC,kBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. 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fieldset.ck-find-and-replace-form__find>.ck-button{text-align:center}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type{flex:1 1 auto}[dir=ltr] .ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type{margin-left:0}[dir=rtl] .ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type{margin-right:0}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type .ck-button__label{text-align:center;width:100%}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>:not(.ck-labeled-field-view){flex:1 1 auto}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-dropdown:not(.ck-labeled-field-view){flex-grow:0}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-button:not(.ck-labeled-field-view)>.ck-button__label{text-align:center;width:100%}}\", 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* Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-find-and-replace-form {\\n\\tmax-width: 100%;\\n\\n\\t& fieldset {\\n\\t\\tdisplay: flex;\\n\\n\\t\\t/* The find fieldset */\\n\\t\\t&.ck-find-and-replace-form__find .ck-results-counter {\\n\\t\\t\\tposition: absolute;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-find-and-replace-form {\\n\\twidth: 400px;\\n\\n\\t/*\\n\\t * The <form> needs tabindex=\\\"-1\\\" for proper Esc handling after being clicked\\n\\t * but the side effect is that this creates a nasty focus outline in some browsers.\\n\\t */\\n\\t&:focus {\\n\\t\\toutline: none;\\n\\t}\\n\\n\\t& fieldset {\\n\\t\\tflex-direction: row;\\n\\t\\tflex-wrap: nowrap;\\n\\t\\talign-items: center;\\n\\t\\talign-content: stretch;\\n\\n\\t\\tpadding: var(--ck-spacing-large);\\n\\t\\tborder: 0;\\n\\t\\tmargin: 0;\\n\\n\\t\\t& > .ck-button {\\n\\t\\t\\tflex: 0 0 auto;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t& > * + * {\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t& > * + * {\\n\\t\\t\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tflex: 1 1 auto;\\n\\n\\t\\t\\t& .ck-input {\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\tmin-width: 50px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* The find fieldset */\\n\\t\\t&.ck-find-and-replace-form__find {\\n\\t\\t\\t/* To display all controls in line when there's an error under the input */\\n\\t\\t\\talign-items: flex-start;\\n\\n\\t\\t\\t& > .ck-button-find {\\n\\t\\t\\t\\tfont-weight: bold;\\n\\n\\t\\t\\t\\t/* Beef the find button up a little. It's the main action button in the form */\\n\\t\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\t\\tpadding-left: var(--ck-spacing-large);\\n\\t\\t\\t\\t\\tpadding-right: var(--ck-spacing-large);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-button-prev > .ck-icon {\\n\\t\\t\\t\\ttransform: rotate(90deg);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-button-next > .ck-icon {\\n\\t\\t\\t\\ttransform: rotate(-90deg);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-results-counter {\\n\\t\\t\\t\\ttop: 50%;\\n\\t\\t\\t\\ttransform: translateY(-50%);\\n\\n\\t\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\t\\tright: var(--ck-spacing-standard);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\t\\tleft: var(--ck-spacing-standard);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\tcolor: var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* The replace fieldset */\\n\\t\\t&.ck-find-and-replace-form__replace {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t\\tjustify-content: flex-end;\\n\\t\\t\\tmargin-top: calc( -1 * var(--ck-spacing-large) );\\n\\n\\t\\t\\t& > .ck-labeled-field-view {\\n\\t\\t\\t\\tmargin-bottom: var(--ck-spacing-large);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-options-dropdown {\\n\\t\\t\\t\\tmargin-right: auto;\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-labeled-field-view,\\n\\t\\t\\t& > .ck-labeled-field-view .ck-input {\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n@mixin ck-media-phone {\\n\\t.ck.ck-find-and-replace-form {\\n\\t\\twidth: 300px;\\n\\n\\t\\t& fieldset {\\n\\t\\t\\tflex-wrap: wrap;\\n\\n\\t\\t\\t/* The find fieldset */\\n\\t\\t\\t&.ck-find-and-replace-form__find {\\n\\t\\t\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\t\\t\\tflex: 1 0 auto;\\n\\t\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\t\\tmargin-bottom: var(--ck-spacing-standard);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t& > .ck-button {\\n\\t\\t\\t\\t\\ttext-align: center;\\n\\n\\t\\t\\t\\t\\t&:first-of-type {\\n\\t\\t\\t\\t\\t\\tflex: 1 1 auto;\\n\\n\\t\\t\\t\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\t\\t\\t\\tmargin-right: 0;\\n\\t\\t\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\t\\t\\t\\ttext-align: center;\\n\\t\\t\\t\\t\\t\\t}\\n\\t\\t\\t\\t\\t}\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t/* The replace fieldset */\\n\\t\\t\\t&.ck-find-and-replace-form__replace > :not(.ck-labeled-field-view) {\\n\\t\\t\\t\\tflex: 1 1 auto;\\n\\n\\t\\t\\t\\t&.ck-dropdown {\\n\\t\\t\\t\\t\\tflex-grow: 0;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t&.ck-button > .ck-button__label {\\n\\t\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\t\\ttext-align: center;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-link_selected{background:var(--ck-color-link-selected-background)}.ck .ck-link_selected span.image-inline{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background)}.ck .ck-fake-link-selection{background:var(--ck-color-link-fake-selection)}.ck .ck-fake-link-selection_collapsed{border-right:1px solid var(--ck-color-base-text);height:100%;margin-right:-1px;outline:1px solid hsla(0,0%,100%,.5)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/link.css\"],\"names\":[],\"mappings\":\"AAMA,sBACC,mDAMD,CAHC,wCACC,yFACD,CAOD,4BACC,8CACD,CAGA,sCAEC,gDAAiD,CADjD,WAAY,CAEZ,iBAAkB,CAClB,oCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* Class added to span element surrounding currently selected link. */\\n.ck .ck-link_selected {\\n\\tbackground: var(--ck-color-link-selected-background);\\n\\n\\t/* Give linked inline images some outline to let the user know they are also part of the link. */\\n\\t& span.image-inline {\\n\\t\\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background);\\n\\t}\\n}\\n\\n/*\\n * Classes used by the \\\"fake visual selection\\\" displayed in the content when an input\\n * in the link UI has focus (the browser does not render the native selection in this state).\\n */\\n.ck .ck-fake-link-selection {\\n\\tbackground: var(--ck-color-link-fake-selection);\\n}\\n\\n/* A collapsed fake visual selection. */\\n.ck .ck-fake-link-selection_collapsed {\\n\\theight: 100%;\\n\\tborder-right: 1px solid var(--ck-color-base-text);\\n\\tmargin-right: -1px;\\n\\toutline: solid 1px hsla(0, 0%, 100%, .5);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-link-actions{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-link-actions .ck-link-actions__preview{display:inline-block}.ck.ck-link-actions .ck-link-actions__preview .ck-button__label{overflow:hidden}@media screen and (max-width:600px){.ck.ck-link-actions{flex-wrap:wrap}.ck.ck-link-actions .ck-link-actions__preview{flex-basis:100%}.ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){flex-basis:50%}}.ck.ck-link-actions .ck-button.ck-link-actions__preview{padding-left:0;padding-right:0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{color:var(--ck-color-link-default);cursor:pointer;max-width:var(--ck-input-width);min-width:3em;padding:0 var(--ck-spacing-medium);text-align:center;text-overflow:ellipsis}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label:hover{text-decoration:underline}.ck.ck-link-actions .ck-button.ck-link-actions__preview,.ck.ck-link-actions .ck-button.ck-link-actions__preview:active,.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus,.ck.ck-link-actions .ck-button.ck-link-actions__preview:hover{background:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:active{box-shadow:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus .ck-button__label{text-decoration:underline}[dir=ltr] .ck.ck-link-actions .ck-button:not(:first-child),[dir=rtl] .ck.ck-link-actions .ck-button:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-link-actions .ck-button.ck-link-actions__preview{margin:var(--ck-spacing-standard) var(--ck-spacing-standard) 0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{max-width:100%;min-width:0}[dir=ltr] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview),[dir=rtl] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){margin-left:0}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkactions.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkactions.css\"],\"names\":[],\"mappings\":\"AAOA,oBACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,8CACC,oBAKD,CAHC,gEACC,eACD,CCXD,oCDCD,oBAcE,cAUF,CARE,8CACC,eACD,CAEA,8DACC,cACD,CCrBD,CCIA,wDACC,cAAe,CACf,eAmCD,CAjCC,0EAEC,kCAAmC,CAEnC,cAAe,CAIf,+BAAgC,CAChC,aAAc,CARd,kCAAmC,CASnC,iBAAkB,CAPlB,sBAYD,CAHC,gFACC,yBACD,CAGD,mPAIC,eACD,CAEA,+DACC,eACD,CAGC,gFACC,yBACD,CAWD,qHACC,sCACD,CDtDD,oCC0DC,wDACC,8DAMD,CAJC,0EAEC,cAAe,CADf,WAED,CAGD,gJAME,aAEF,CDzED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-link-actions {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\n\\t& .ck-link-actions__preview {\\n\\t\\tdisplay: inline-block;\\n\\n\\t\\t& .ck-button__label {\\n\\t\\t\\toverflow: hidden;\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tflex-wrap: wrap;\\n\\n\\t\\t& .ck-link-actions__preview {\\n\\t\\t\\tflex-basis: 100%;\\n\\t\\t}\\n\\n\\t\\t& .ck-button:not(.ck-link-actions__preview) {\\n\\t\\t\\tflex-basis: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_unselectable.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n@import \\\"../mixins/_focus.css\\\";\\n@import \\\"../mixins/_shadow.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-link-actions {\\n\\t& .ck-button.ck-link-actions__preview {\\n\\t\\tpadding-left: 0;\\n\\t\\tpadding-right: 0;\\n\\n\\t\\t& .ck-button__label {\\n\\t\\t\\tpadding: 0 var(--ck-spacing-medium);\\n\\t\\t\\tcolor: var(--ck-color-link-default);\\n\\t\\t\\ttext-overflow: ellipsis;\\n\\t\\t\\tcursor: pointer;\\n\\n\\t\\t\\t/* Match the box model of the link editor form's input so the balloon\\n\\t\\t\\tdoes not change width when moving between actions and the form. */\\n\\t\\t\\tmax-width: var(--ck-input-width);\\n\\t\\t\\tmin-width: 3em;\\n\\t\\t\\ttext-align: center;\\n\\n\\t\\t\\t&:hover {\\n\\t\\t\\t\\ttext-decoration: underline;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&,\\n\\t\\t&:hover,\\n\\t\\t&:focus,\\n\\t\\t&:active {\\n\\t\\t\\tbackground: none;\\n\\t\\t}\\n\\n\\t\\t&:active {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t}\\n\\n\\t\\t&:focus {\\n\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\ttext-decoration: underline;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir ltr {\\n\\t\\t& .ck-button:not(:first-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir rtl {\\n\\t\\t& .ck-button:not(:last-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\t& .ck-button.ck-link-actions__preview {\\n\\t\\t\\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\\n\\n\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\tmin-width: 0;\\n\\t\\t\\t\\tmax-width: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& .ck-button:not(.ck-link-actions__preview) {\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-link-form{display:flex}.ck.ck-link-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-link-form{flex-wrap:wrap}.ck.ck-link-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-link-form .ck-button{flex-basis:50%}}.ck.ck-link-form_layout-vertical{display:block}.ck.ck-link-form_layout-vertical .ck-button.ck-button-cancel,.ck.ck-link-form_layout-vertical .ck-button.ck-button-save{margin-top:var(--ck-spacing-medium)}.ck.ck-link-form_layout-vertical{min-width:var(--ck-input-width);padding:0}.ck.ck-link-form_layout-vertical .ck-labeled-field-view{margin:var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small)}.ck.ck-link-form_layout-vertical .ck-labeled-field-view .ck-input-text{min-width:0;width:100%}.ck.ck-link-form_layout-vertical>.ck-button{border-radius:0;margin:0;padding:var(--ck-spacing-standard);width:50%}.ck.ck-link-form_layout-vertical>.ck-button:not(:focus){border-top:1px solid var(--ck-color-base-border)}[dir=ltr] .ck.ck-link-form_layout-vertical>.ck-button,[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button{margin-left:0}[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button:last-of-type{border-right:1px solid var(--ck-color-base-border)}.ck.ck-link-form_layout-vertical .ck.ck-list{margin:var(--ck-spacing-standard) var(--ck-spacing-large)}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton{padding:0;width:100%}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton:hover{background:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkform.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkform.css\"],\"names\":[],\"mappings\":\"AAOA,iBACC,YAiBD,CAfC,2BACC,YACD,CCNA,oCDCD,iBAQE,cAUF,CARE,wCACC,eACD,CAEA,4BACC,cACD,CCfD,CDuBD,iCACC,aAYD,CALE,wHAEC,mCACD,CE/BF,iCAEC,+BAAgC,CADhC,SAgDD,CA7CC,wDACC,8EAMD,CAJC,uEACC,WAAY,CACZ,UACD,CAGD,4CAIC,eAAgB,CAFhB,QAAS,CADT,kCAAmC,CAEnC,SAkBD,CAfC,wDACC,gDACD,CARD,4GAeE,aAMF,CAJE,mEACC,kDACD,CAKF,6CACC,yDAUD,CARC,wEACC,SAAU,CACV,UAKD,CAHC,8EACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-link-form {\\n\\tdisplay: flex;\\n\\n\\t& .ck-label {\\n\\t\\tdisplay: none;\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tflex-wrap: wrap;\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tflex-basis: 100%;\\n\\t\\t}\\n\\n\\t\\t& .ck-button {\\n\\t\\t\\tflex-basis: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Style link form differently when manual decorators are available.\\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\\n */\\n.ck.ck-link-form_layout-vertical {\\n\\tdisplay: block;\\n\\n\\t/*\\n\\t * Whether the form is in the responsive mode or not, if there are decorator buttons\\n\\t * keep the top margin of action buttons medium.\\n\\t */\\n\\t& .ck-button {\\n\\t\\t&.ck-button-save,\\n\\t\\t&.ck-button-cancel {\\n\\t\\t\\tmargin-top: var(--ck-spacing-medium);\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n/*\\n * Style link form differently when manual decorators are available.\\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\\n */\\n.ck.ck-link-form_layout-vertical {\\n\\tpadding: 0;\\n\\tmin-width: var(--ck-input-width);\\n\\n\\t& .ck-labeled-field-view {\\n\\t\\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small);\\n\\n\\t\\t& .ck-input-text {\\n\\t\\t\\tmin-width: 0;\\n\\t\\t\\twidth: 100%;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-button {\\n\\t\\tpadding: var(--ck-spacing-standard);\\n\\t\\tmargin: 0;\\n\\t\\twidth: 50%;\\n\\t\\tborder-radius: 0;\\n\\n\\t\\t&:not(:focus) {\\n\\t\\t\\tborder-top: 1px solid var(--ck-color-base-border);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tmargin-left: 0;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t&:last-of-type {\\n\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/* Using additional `.ck` class for stronger CSS specificity than `.ck.ck-link-form > :not(:first-child)`. */\\n\\t& .ck.ck-list {\\n\\t\\tmargin: var(--ck-spacing-standard) var(--ck-spacing-large);\\n\\n\\t\\t& .ck-button.ck-switchbutton {\\n\\t\\t\\tpadding: 0;\\n\\t\\t\\twidth: 100%;\\n\\n\\t\\t\\t&:hover {\\n\\t\\t\\t\\tbackground: none;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-mention-background:rgba(153,0,48,.1);--ck-color-mention-text:#990030}.ck-content .mention{background:var(--ck-color-mention-background);color:var(--ck-color-mention-text)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-mention/mention.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,+CAAwD,CACxD,+BACD,CAEA,qBACC,6CAA8C,CAC9C,kCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-mention-background: hsla(341, 100%, 30%, 0.1);\\n\\t--ck-color-mention-text: hsl(341, 100%, 30%);\\n}\\n\\n.ck-content .mention {\\n\\tbackground: var(--ck-color-mention-background);\\n\\tcolor: var(--ck-color-mention-text);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-mention-list-max-height:300px}.ck.ck-mentions{max-height:var(--ck-mention-list-max-height);overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain}.ck.ck-mentions>.ck-list__item{flex-shrink:0;overflow:hidden}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-mention/theme/mentionui.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,kCACD,CAEA,gBACC,4CAA6C,CAM7C,iBAAkB,CAJlB,eAAgB,CAMhB,2BAQD,CAJC,+BAEC,aAAc,CADd,eAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-mention-list-max-height: 300px;\\n}\\n\\n.ck.ck-mentions {\\n\\tmax-height: var(--ck-mention-list-max-height);\\n\\n\\toverflow-y: auto;\\n\\n\\t/* Prevent unnecessary horizontal scrollbar in Safari\\n\\thttps://github.com/ckeditor/ckeditor5-mention/issues/41 */\\n\\toverflow-x: hidden;\\n\\n\\toverscroll-behavior: contain;\\n\\n\\t/* Prevent unnecessary vertical scrollbar in Safari\\n\\thttps://github.com/ckeditor/ckeditor5-mention/issues/41 */\\n\\t& > .ck-list__item {\\n\\t\\toverflow: hidden;\\n\\t\\tflex-shrink: 0;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-editor__editable .ck.ck-clipboard-drop-target-position{display:inline;pointer-events:none;position:relative}.ck.ck-editor__editable .ck.ck-clipboard-drop-target-position span{position:absolute;width:0}.ck.ck-editor__editable .ck-widget:-webkit-drag>.ck-widget__selection-handle,.ck.ck-editor__editable .ck-widget:-webkit-drag>.ck-widget__type-around{display:none}:root{--ck-clipboard-drop-target-dot-width:12px;--ck-clipboard-drop-target-dot-height:8px;--ck-clipboard-drop-target-color:var(--ck-color-focus-border)}.ck.ck-editor__editable .ck.ck-clipboard-drop-target-position span{background:var(--ck-clipboard-drop-target-color);border:1px solid var(--ck-clipboard-drop-target-color);bottom:calc(var(--ck-clipboard-drop-target-dot-height)*-.5);margin-left:-1px;top:calc(var(--ck-clipboard-drop-target-dot-height)*-.5)}.ck.ck-editor__editable .ck.ck-clipboard-drop-target-position span:after{border-color:var(--ck-clipboard-drop-target-color) transparent transparent transparent;border-style:solid;border-width:calc(var(--ck-clipboard-drop-target-dot-height)) calc(var(--ck-clipboard-drop-target-dot-width)*.5) 0 calc(var(--ck-clipboard-drop-target-dot-width)*.5);content:\\\"\\\";display:block;height:0;left:50%;position:absolute;top:calc(var(--ck-clipboard-drop-target-dot-height)*-.5);transform:translateX(-50%);width:0}.ck.ck-editor__editable .ck-widget.ck-clipboard-drop-target-range{outline:var(--ck-widget-outline-thickness) solid var(--ck-clipboard-drop-target-color)!important}.ck.ck-editor__editable .ck-widget:-webkit-drag{zoom:.6;outline:none!important}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-clipboard/theme/clipboard.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-clipboard/clipboard.css\"],\"names\":[],\"mappings\":\"AASC,8DACC,cAAe,CAEf,mBAAoB,CADpB,iBAOD,CAJC,mEACC,iBAAkB,CAClB,OACD,CAWA,qJACC,YACD,CCzBF,MACC,yCAA0C,CAC1C,yCAA0C,CAC1C,6DACD,CAOE,mEAIC,gDAAiD,CADjD,sDAAuD,CAFvD,2DAA8D,CAI9D,gBAAiB,CAHjB,wDAqBD,CAfC,yEAWC,sFAAuF,CAEvF,kBAAmB,CADnB,qKAA0K,CAX1K,UAAW,CAIX,aAAc,CAFd,QAAS,CAIT,QAAS,CADT,iBAAkB,CAElB,wDAA2D,CAE3D,0BAA2B,CAR3B,OAYD,CA2DF,kEACC,gGACD,CAKA,gDACC,OAAS,CACT,sBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-editor__editable {\\n\\t/*\\n\\t * Vertical drop target (in text).\\n\\t */\\n\\t& .ck.ck-clipboard-drop-target-position {\\n\\t\\tdisplay: inline;\\n\\t\\tposition: relative;\\n\\t\\tpointer-events: none;\\n\\n\\t\\t& span {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\twidth: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles of the widget being dragged (its preview).\\n\\t */\\n\\t& .ck-widget:-webkit-drag {\\n\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\n\\t\\t& > .ck-widget__type-around {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-clipboard-drop-target-dot-width: 12px;\\n\\t--ck-clipboard-drop-target-dot-height: 8px;\\n\\t--ck-clipboard-drop-target-color: var(--ck-color-focus-border)\\n}\\n\\n.ck.ck-editor__editable {\\n\\t/*\\n\\t * Vertical drop target (in text).\\n\\t */\\n\\t& .ck.ck-clipboard-drop-target-position {\\n\\t\\t& span {\\n\\t\\t\\tbottom: calc(-.5 * var(--ck-clipboard-drop-target-dot-height));\\n\\t\\t\\ttop: calc(-.5 * var(--ck-clipboard-drop-target-dot-height));\\n\\t\\t\\tborder: 1px solid var(--ck-clipboard-drop-target-color);\\n\\t\\t\\tbackground: var(--ck-clipboard-drop-target-color);\\n\\t\\t\\tmargin-left: -1px;\\n\\n\\t\\t\\t/* The triangle above the marker */\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\theight: 0;\\n\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tleft: 50%;\\n\\t\\t\\t\\ttop: calc(var(--ck-clipboard-drop-target-dot-height) * -.5);\\n\\n\\t\\t\\t\\ttransform: translateX(-50%);\\n\\t\\t\\t\\tborder-color: var(--ck-clipboard-drop-target-color) transparent transparent transparent;\\n\\t\\t\\t\\tborder-width: calc(var(--ck-clipboard-drop-target-dot-height)) calc(.5 * var(--ck-clipboard-drop-target-dot-width)) 0 calc(.5 * var(--ck-clipboard-drop-target-dot-width));\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t// Horizontal drop target (between blocks).\\n\\t& .ck.ck-clipboard-drop-target-position {\\n\\t\\tdisplay: block;\\n\\t\\tposition: relative;\\n\\t\\twidth: 100%;\\n\\t\\theight: 0;\\n\\t\\tmargin: 0;\\n\\t\\ttext-align: initial;\\n\\n\\t\\t& .ck-clipboard-drop-target__line {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\twidth: 100%;\\n\\t\\t\\theight: 0;\\n\\t\\t\\tborder: 1px solid var(--ck-clipboard-drop-target-color);\\n\\t\\t\\tmargin-top: -1px;\\n\\n\\t\\t\\t&::before {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\theight: 0;\\n\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tleft: calc(-1 * var(--ck-clipboard-drop-target-dot-size));\\n\\t\\t\\t\\ttop: 0;\\n\\n\\t\\t\\t\\ttransform: translateY(-50%);\\n\\t\\t\\t\\tborder-color: transparent transparent transparent var(--ck-clipboard-drop-target-color);\\n\\t\\t\\t\\tborder-width: var(--ck-clipboard-drop-target-dot-size) 0 var(--ck-clipboard-drop-target-dot-size) calc(2 * var(--ck-clipboard-drop-target-dot-size));\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\theight: 0;\\n\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tright: calc(-1 * var(--ck-clipboard-drop-target-dot-size));\\n\\t\\t\\t\\ttop: 0;\\n\\n\\t\\t\\t\\ttransform: translateY(-50%);\\n\\t\\t\\t\\tborder-color: transparent var(--ck-clipboard-drop-target-color) transparent transparent;\\n\\t\\t\\t\\tborder-width: var(--ck-clipboard-drop-target-dot-size) calc(2 * var(--ck-clipboard-drop-target-dot-size)) var(--ck-clipboard-drop-target-dot-size) 0;\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\t*/\\n\\n\\t/*\\n\\t * Styles of the widget that it a drop target.\\n\\t */\\n\\t& .ck-widget.ck-clipboard-drop-target-range {\\n\\t\\toutline: var(--ck-widget-outline-thickness) solid var(--ck-clipboard-drop-target-color) !important;\\n\\t}\\n\\n\\t/*\\n\\t * Styles of the widget being dragged (its preview).\\n\\t */\\n\\t& .ck-widget:-webkit-drag {\\n\\t\\tzoom: 0.6;\\n\\t\\toutline: none !important;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content pre{background:hsla(0,0%,78%,.3);border:1px solid #c4c4c4;border-radius:2px;color:#353535;direction:ltr;font-style:normal;min-width:200px;padding:1em;tab-size:4;text-align:left;white-space:pre-wrap}.ck-content pre code{background:unset;border-radius:0;padding:0}.ck.ck-editor__editable pre{position:relative}.ck.ck-editor__editable pre[data-language]:after{content:attr(data-language);position:absolute}:root{--ck-color-code-block-label-background:#757575}.ck.ck-editor__editable pre[data-language]:after{background:var(--ck-color-code-block-label-background);color:#fff;font-family:var(--ck-font-face);font-size:10px;line-height:16px;padding:var(--ck-spacing-tiny) var(--ck-spacing-medium);right:10px;top:-1px;white-space:nowrap}.ck.ck-code-block-dropdown .ck-dropdown__panel{max-height:250px;overflow-x:hidden;overflow-y:auto}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-code-block/theme/codeblock.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-code-block/codeblock.css\"],\"names\":[],\"mappings\":\"AAKA,gBAGC,4BAAiC,CACjC,wBAAiC,CACjC,iBAAkB,CAHlB,aAAwB,CAOxB,aAAc,CAMd,iBAAkB,CAGlB,eAAgB,CAjBhB,WAAY,CAUZ,UAAW,CAHX,eAAgB,CAIhB,oBAaD,CALC,qBACC,gBAAiB,CAEjB,eAAgB,CADhB,SAED,CAGD,4BACC,iBAMD,CAJC,iDACC,2BAA4B,CAC5B,iBACD,CCjCD,MACC,8CACD,CAEA,iDAGC,sDAAuD,CAMvD,UAAuB,CAHvB,+BAAgC,CADhC,cAAe,CAEf,gBAAiB,CACjB,uDAAwD,CANxD,UAAW,CADX,QAAS,CAST,kBACD,CAEA,+CAEC,gBAAiB,CAEjB,iBAAkB,CADlB,eAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content pre {\\n\\tpadding: 1em;\\n\\tcolor: hsl(0, 0%, 20.8%);\\n\\tbackground: hsla(0, 0%, 78%, 0.3);\\n\\tborder: 1px solid hsl(0, 0%, 77%);\\n\\tborder-radius: 2px;\\n\\n\\t/* Code block are language direction–agnostic. */\\n\\ttext-align: left;\\n\\tdirection: ltr;\\n\\n\\ttab-size: 4;\\n\\twhite-space: pre-wrap;\\n\\n\\t/* Don't inherit the style, e.g. when in a block quote. */\\n\\tfont-style: normal;\\n\\n\\t/* Don't let the code be squashed e.g. when in a table cell. */\\n\\tmin-width: 200px;\\n\\n\\t& code {\\n\\t\\tbackground: unset;\\n\\t\\tpadding: 0;\\n\\t\\tborder-radius: 0;\\n\\t}\\n}\\n\\n.ck.ck-editor__editable pre {\\n\\tposition: relative;\\n\\n\\t&[data-language]::after {\\n\\t\\tcontent: attr(data-language);\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-code-block-label-background: hsl(0, 0%, 46%);\\n}\\n\\n.ck.ck-editor__editable pre[data-language]::after {\\n\\ttop: -1px;\\n\\tright: 10px;\\n\\tbackground: var(--ck-color-code-block-label-background);\\n\\n\\tfont-size: 10px;\\n\\tfont-family: var(--ck-font-face);\\n\\tline-height: 16px;\\n\\tpadding: var(--ck-spacing-tiny) var(--ck-spacing-medium);\\n\\tcolor: hsl(0, 0%, 100%);\\n\\twhite-space: nowrap;\\n}\\n\\n.ck.ck-code-block-dropdown .ck-dropdown__panel {\\n\\t/* There could be dozens of languages available. Use scroll to prevent a 10e6px dropdown. */\\n\\tmax-height: 250px;\\n\\toverflow-y: auto;\\n\\toverflow-x: hidden;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-placeholder,.ck.ck-placeholder{position:relative}.ck .ck-placeholder:before,.ck.ck-placeholder:before{content:attr(data-placeholder);left:0;pointer-events:none;position:absolute;right:0}.ck.ck-read-only .ck-placeholder:before{display:none}.ck.ck-reset_all .ck-placeholder{position:relative}.ck .ck-placeholder:before,.ck.ck-placeholder:before{color:var(--ck-color-engine-placeholder-text);cursor:text}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-engine/theme/placeholder.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-engine/placeholder.css\"],\"names\":[],\"mappings\":\"AAMA,uCAEC,iBAWD,CATC,qDAIC,8BAA+B,CAF/B,MAAO,CAKP,mBAAoB,CANpB,iBAAkB,CAElB,OAKD,CAKA,wCACC,YACD,CAQD,iCACC,iBACD,CC5BC,qDAEC,6CAA8C,CAD9C,WAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* See ckeditor/ckeditor5#936. */\\n.ck.ck-placeholder,\\n.ck .ck-placeholder {\\n\\tposition: relative;\\n\\n\\t&::before {\\n\\t\\tposition: absolute;\\n\\t\\tleft: 0;\\n\\t\\tright: 0;\\n\\t\\tcontent: attr(data-placeholder);\\n\\n\\t\\t/* See ckeditor/ckeditor5#469. */\\n\\t\\tpointer-events: none;\\n\\t}\\n}\\n\\n/* See ckeditor/ckeditor5#1987. */\\n.ck.ck-read-only .ck-placeholder {\\n\\t&::before {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\\n/*\\n * Rules for the `ck-placeholder` are loaded before the rules for `ck-reset_all` in the base CKEditor 5 DLL build.\\n * This fix overwrites the incorrectly set `position: static` from `ck-reset_all`.\\n * See https://github.com/ckeditor/ckeditor5/issues/11418.\\n */\\n.ck.ck-reset_all .ck-placeholder {\\n\\tposition: relative;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* See ckeditor/ckeditor5#936. */\\n.ck.ck-placeholder, .ck .ck-placeholder {\\n\\t&::before {\\n\\t\\tcursor: text;\\n\\t\\tcolor: var(--ck-color-engine-placeholder-text);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-editor__editable span[data-ck-unsafe-element]{display:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-engine/theme/renderer.css\"],\"names\":[],\"mappings\":\"AAMA,qDACC,YACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* Elements marked by the Renderer as hidden should be invisible in the editor. */\\n.ck.ck-editor__editable span[data-ck-unsafe-element] {\\n\\tdisplay: none;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-button.ck-color-table__remove-color{align-items:center;display:flex;width:100%}label.ck.ck-color-grid__label{font-weight:unset}.ck .ck-button.ck-color-table__remove-color{border-bottom-left-radius:0;border-bottom-right-radius:0;padding:calc(var(--ck-spacing-standard)/2) var(--ck-spacing-standard)}.ck .ck-button.ck-color-table__remove-color:not(:focus){border-bottom:1px solid var(--ck-color-base-border)}[dir=ltr] .ck .ck-button.ck-color-table__remove-color .ck.ck-icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck .ck-button.ck-color-table__remove-color .ck.ck-icon{margin-left:var(--ck-spacing-standard)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-font/theme/fontcolor.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-font/fontcolor.css\"],\"names\":[],\"mappings\":\"AAKA,4CAEC,kBAAmB,CADnB,YAAa,CAEb,UACD,CAEA,8BACC,iBACD,CCNA,4CAEC,2BAA4B,CAC5B,4BAA6B,CAF7B,qEAiBD,CAbC,wDACC,mDACD,CAEA,kEAEE,uCAMF,CARA,kEAME,sCAEF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-button.ck-color-table__remove-color {\\n\\tdisplay: flex;\\n\\talign-items: center;\\n\\twidth: 100%;\\n}\\n\\nlabel.ck.ck-color-grid__label {\\n\\tfont-weight: unset;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck .ck-button.ck-color-table__remove-color {\\n\\tpadding: calc(var(--ck-spacing-standard) / 2 ) var(--ck-spacing-standard);\\n\\tborder-bottom-left-radius: 0;\\n\\tborder-bottom-right-radius: 0;\\n\\n\\t&:not(:focus) {\\n\\t\\tborder-bottom: 1px solid var(--ck-color-base-border);\\n\\t}\\n\\n\\t& .ck.ck-icon {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n}\\n\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .text-tiny{font-size:.7em}.ck-content .text-small{font-size:.85em}.ck-content .text-big{font-size:1.4em}.ck-content .text-huge{font-size:1.8em}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-font/theme/fontsize.css\"],\"names\":[],\"mappings\":\"AAUC,uBACC,cACD,CAEA,wBACC,eACD,CAEA,sBACC,eACD,CAEA,uBACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* The values should be synchronized with the \\\"FONT_SIZE_PRESET_UNITS\\\" object in the \\\"/src/fontsize/utils.js\\\" file. */\\n\\n/* Styles should be prefixed with the `.ck-content` class.\\nSee https://github.com/ckeditor/ckeditor5/issues/6636 */\\n.ck-content {\\n\\t& .text-tiny {\\n\\t\\tfont-size: .7em;\\n\\t}\\n\\n\\t& .text-small {\\n\\t\\tfont-size: .85em;\\n\\t}\\n\\n\\t& .text-big {\\n\\t\\tfont-size: 1.4em;\\n\\t}\\n\\n\\t& .text-huge {\\n\\t\\tfont-size: 1.8em;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-heading_heading1{font-size:20px}.ck.ck-heading_heading2{font-size:17px}.ck.ck-heading_heading3{font-size:14px}.ck[class*=ck-heading_heading]{font-weight:700}.ck.ck-dropdown.ck-heading-dropdown .ck-dropdown__button .ck-button__label{width:8em}.ck.ck-dropdown.ck-heading-dropdown .ck-dropdown__panel .ck-list__item{min-width:18em}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-heading/theme/heading.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-heading/heading.css\"],\"names\":[],\"mappings\":\"AAKA,wBACC,cACD,CAEA,wBACC,cACD,CAEA,wBACC,cACD,CAEA,+BACC,eACD,CCZC,2EACC,SACD,CAEA,uEACC,cACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-heading_heading1 {\\n\\tfont-size: 20px;\\n}\\n\\n.ck.ck-heading_heading2 {\\n\\tfont-size: 17px;\\n}\\n\\n.ck.ck-heading_heading3 {\\n\\tfont-size: 14px;\\n}\\n\\n.ck[class*=\\\"ck-heading_heading\\\"] {\\n\\tfont-weight: bold;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* Resize dropdown's button label. */\\n.ck.ck-dropdown.ck-heading-dropdown {\\n\\t& .ck-dropdown__button .ck-button__label {\\n\\t\\twidth: 8em;\\n\\t}\\n\\n\\t& .ck-dropdown__panel .ck-list__item {\\n\\t\\tmin-width: 18em;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-editor__editable .ck-horizontal-line{display:flow-root}.ck-content hr{background:#dedede;border:0;height:4px;margin:15px 0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-horizontal-line/theme/horizontalline.css\"],\"names\":[],\"mappings\":\"AAMA,yCAEC,iBACD,CAEA,eAGC,kBAA2B,CAC3B,QAAS,CAFT,UAAW,CADX,aAID\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n\\n.ck-editor__editable .ck-horizontal-line {\\n\\t/* Necessary to render properly next to floated objects, e.g. side image case. */\\n\\tdisplay: flow-root;\\n}\\n\\n.ck-content hr {\\n\\tmargin: 15px 0;\\n\\theight: 4px;\\n\\tbackground: hsl(0, 0%, 87%);\\n\\tborder: 0;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .image{clear:both;display:table;margin:.9em auto;min-width:50px;text-align:center}.ck-content .image img{display:block;margin:0 auto;max-width:100%;min-width:100%}.ck-content .image-inline{align-items:flex-start;display:inline-flex;max-width:100%}.ck-content .image-inline picture{display:flex}.ck-content .image-inline img,.ck-content .image-inline picture{flex-grow:1;flex-shrink:1;max-width:100%}.ck.ck-editor__editable .image>figcaption.ck-placeholder:before{overflow:hidden;padding-left:inherit;padding-right:inherit;text-overflow:ellipsis;white-space:nowrap}.ck.ck-editor__editable .image-inline.ck-widget_selected,.ck.ck-editor__editable .image.ck-widget_selected{z-index:1}.ck.ck-editor__editable .image-inline.ck-widget_selected ::selection{display:none}.ck.ck-editor__editable td .image-inline img,.ck.ck-editor__editable th .image-inline img{max-width:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/image.css\"],\"names\":[],\"mappings\":\"AAMC,mBAEC,UAAW,CADX,aAAc,CAOd,gBAAkB,CAGlB,cAAe,CARf,iBAuBD,CAbC,uBAEC,aAAc,CAGd,aAAc,CAGd,cAAe,CAGf,cACD,CAGD,0BAYC,sBAAuB,CANvB,mBAAoB,CAGpB,cAoBD,CAdC,kCACC,YACD,CAGA,gEAGC,WAAY,CACZ,aAAc,CAGd,cACD,CAUD,gEASC,eAAgB,CARhB,oBAAqB,CACrB,qBAAsB,CAQtB,sBAAuB,CAFvB,kBAGD,CAWA,2GACC,SAUD,CAHC,qEACC,YACD,CAOA,0FACC,cACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content {\\n\\t& .image {\\n\\t\\tdisplay: table;\\n\\t\\tclear: both;\\n\\t\\ttext-align: center;\\n\\n\\t\\t/* Make sure there is some space between the content and the image. Center image by default. */\\n\\t\\t/* The first value should be equal to --ck-spacing-large variable if used in the editor context\\n\\t \\tto avoid the content jumping (See https://github.com/ckeditor/ckeditor5/issues/9825). */\\n\\t\\tmargin: 0.9em auto;\\n\\n\\t\\t/* Make sure the caption will be displayed properly (See: https://github.com/ckeditor/ckeditor5/issues/1870). */\\n\\t\\tmin-width: 50px;\\n\\n\\t\\t& img {\\n\\t\\t\\t/* Prevent unnecessary margins caused by line-height (see #44). */\\n\\t\\t\\tdisplay: block;\\n\\n\\t\\t\\t/* Center the image if its width is smaller than the content's width. */\\n\\t\\t\\tmargin: 0 auto;\\n\\n\\t\\t\\t/* Make sure the image never exceeds the size of the parent container (ckeditor/ckeditor5-ui#67). */\\n\\t\\t\\tmax-width: 100%;\\n\\n\\t\\t\\t/* Make sure the image is never smaller than the parent container (See: https://github.com/ckeditor/ckeditor5/issues/9300). */\\n\\t\\t\\tmin-width: 100%\\n\\t\\t}\\n\\t}\\n\\n\\t& .image-inline {\\n\\t\\t/*\\n\\t\\t * Normally, the .image-inline would have \\\"display: inline-block\\\" and \\\"img { width: 100% }\\\" (to follow the wrapper while resizing).\\n\\t\\t * Unfortunately, together with \\\"srcset\\\", it gets automatically stretched up to the width of the editing root.\\n\\t\\t * This strange behavior does not happen with inline-flex.\\n\\t\\t */\\n\\t\\tdisplay: inline-flex;\\n\\n\\t\\t/* While being resized, don't allow the image to exceed the width of the editing root. */\\n\\t\\tmax-width: 100%;\\n\\n\\t\\t/* This is required by Safari to resize images in a sensible way. Without this, the browser breaks the ratio. */\\n\\t\\talign-items: flex-start;\\n\\n\\t\\t/* When the picture is present it must act as a flex container to let the img resize properly */\\n\\t\\t& picture {\\n\\t\\t\\tdisplay: flex;\\n\\t\\t}\\n\\n\\t\\t/* When the picture is present, it must act like a resizable img. */\\n\\t\\t& picture,\\n\\t\\t& img {\\n\\t\\t\\t/* This is necessary for the img to span the entire .image-inline wrapper and to resize properly. */\\n\\t\\t\\tflex-grow: 1;\\n\\t\\t\\tflex-shrink: 1;\\n\\n\\t\\t\\t/* Prevents overflowing the editing root boundaries when an inline image is very wide. */\\n\\t\\t\\tmax-width: 100%;\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-editor__editable {\\n\\t/*\\n\\t * Inhertit the content styles padding of the <figcaption> in case the integration overrides `text-align: center`\\n\\t * of `.image` (e.g. to the left/right). This ensures the placeholder stays at the padding just like the native\\n\\t * caret does, and not at the edge of <figcaption>.\\n\\t */\\n\\t& .image > figcaption.ck-placeholder::before {\\n\\t\\tpadding-left: inherit;\\n\\t\\tpadding-right: inherit;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the image caption placeholder doesn't overflow the placeholder area.\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/9162.\\n\\t\\t */\\n\\t\\twhite-space: nowrap;\\n\\t\\toverflow: hidden;\\n\\t\\ttext-overflow: ellipsis;\\n\\t}\\n\\n\\n\\t/*\\n\\t * Make sure the selected inline image always stays on top of its siblings.\\n\\t * See https://github.com/ckeditor/ckeditor5/issues/9108.\\n\\t */\\n\\t& .image.ck-widget_selected {\\n\\t\\tz-index: 1;\\n\\t}\\n\\n\\t& .image-inline.ck-widget_selected {\\n\\t\\tz-index: 1;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the native browser selection style is not displayed.\\n\\t\\t * Inline image widgets have their own styles for the selected state and\\n\\t\\t * leaving this up to the browser is asking for a visual collision.\\n\\t\\t */\\n\\t\\t& ::selection {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t/* The inline image nested in the table should have its original size if not resized.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9117. */\\n\\t& td,\\n\\t& th {\\n\\t\\t& .image-inline img {\\n\\t\\t\\tmax-width: none;\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-image-caption-background:#f7f7f7;--ck-color-image-caption-text:#333;--ck-color-image-caption-highligted-background:#fd0}.ck-content .image>figcaption{background-color:var(--ck-color-image-caption-background);caption-side:bottom;color:var(--ck-color-image-caption-text);display:table-caption;font-size:.75em;outline-offset:-1px;padding:.6em;word-break:break-word}.ck.ck-editor__editable .image>figcaption.image__caption_highlighted{animation:ck-image-caption-highlight .6s ease-out}@keyframes ck-image-caption-highlight{0%{background-color:var(--ck-color-image-caption-highligted-background)}to{background-color:var(--ck-color-image-caption-background)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imagecaption.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,2CAAoD,CACpD,kCAA8C,CAC9C,mDACD,CAGA,8BAKC,yDAA0D,CAH1D,mBAAoB,CAEpB,wCAAyC,CAHzC,qBAAsB,CAMtB,eAAgB,CAChB,mBAAoB,CAFpB,YAAa,CAHb,qBAMD,CAGA,qEACC,iDACD,CAEA,sCACC,GACC,oEACD,CAEA,GACC,yDACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-image-caption-background: hsl(0, 0%, 97%);\\n\\t--ck-color-image-caption-text: hsl(0, 0%, 20%);\\n\\t--ck-color-image-caption-highligted-background: hsl(52deg 100% 50%);\\n}\\n\\n/* Content styles */\\n.ck-content .image > figcaption {\\n\\tdisplay: table-caption;\\n\\tcaption-side: bottom;\\n\\tword-break: break-word;\\n\\tcolor: var(--ck-color-image-caption-text);\\n\\tbackground-color: var(--ck-color-image-caption-background);\\n\\tpadding: .6em;\\n\\tfont-size: .75em;\\n\\toutline-offset: -1px;\\n}\\n\\n/* Editing styles */\\n.ck.ck-editor__editable .image > figcaption.image__caption_highlighted {\\n\\tanimation: ck-image-caption-highlight .6s ease-out;\\n}\\n\\n@keyframes ck-image-caption-highlight {\\n\\t0% {\\n\\t\\tbackground-color: var(--ck-color-image-caption-highligted-background);\\n\\t}\\n\\n\\t100% {\\n\\t\\tbackground-color: var(--ck-color-image-caption-background);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .image.image_resized{box-sizing:border-box;display:block;max-width:100%}.ck-content .image.image_resized img{width:100%}.ck-content .image.image_resized>figcaption{display:block}.ck.ck-editor__editable td .image-inline.image_resized img,.ck.ck-editor__editable th .image-inline.image_resized img{max-width:100%}[dir=ltr] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon{margin-left:var(--ck-spacing-standard)}.ck.ck-dropdown .ck-button.ck-resize-image-button .ck-button__label{width:4em}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageresize.css\"],\"names\":[],\"mappings\":\"AAKA,iCAQC,qBAAsB,CADtB,aAAc,CANd,cAkBD,CATC,qCAEC,UACD,CAEA,4CAEC,aACD,CAQC,sHACC,cACD,CAIF,oFACC,uCACD,CAEA,oFACC,sCACD,CAEA,oEACC,SACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content .image.image_resized {\\n\\tmax-width: 100%;\\n\\t/*\\n\\tThe `<figure>` element for resized images must not use `display:table` as browsers do not support `max-width` for it well.\\n\\tSee https://stackoverflow.com/questions/4019604/chrome-safari-ignoring-max-width-in-table/14420691#14420691 for more.\\n\\tFortunately, since we control the width, there is no risk that the image will look bad.\\n\\t*/\\n\\tdisplay: block;\\n\\tbox-sizing: border-box;\\n\\n\\t& img {\\n\\t\\t/* For resized images it is the `<figure>` element that determines the image width. */\\n\\t\\twidth: 100%;\\n\\t}\\n\\n\\t& > figcaption {\\n\\t\\t/* The `<figure>` element uses `display:block`, so `<figcaption>` also has to. */\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\\n.ck.ck-editor__editable {\\n\\t/* The resized inline image nested in the table should respect its parent size.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9117. */\\n\\t& td,\\n\\t& th {\\n\\t\\t& .image-inline.image_resized img {\\n\\t\\t\\tmax-width: 100%;\\n\\t\\t}\\n\\t}\\n}\\n\\n[dir=\\\"ltr\\\"] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon {\\n\\tmargin-right: var(--ck-spacing-standard);\\n}\\n\\n[dir=\\\"rtl\\\"] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon {\\n\\tmargin-left: var(--ck-spacing-standard);\\n}\\n\\n.ck.ck-dropdown .ck-button.ck-resize-image-button .ck-button__label {\\n\\twidth: 4em;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-image-style-spacing:1.5em;--ck-inline-image-style-spacing:calc(var(--ck-image-style-spacing)/2)}.ck-content .image-style-block-align-left,.ck-content .image-style-block-align-right{max-width:calc(100% - var(--ck-image-style-spacing))}.ck-content .image-style-align-left,.ck-content .image-style-align-right{clear:none}.ck-content .image-style-side{float:right;margin-left:var(--ck-image-style-spacing);max-width:50%}.ck-content .image-style-align-left{float:left;margin-right:var(--ck-image-style-spacing)}.ck-content .image-style-align-center{margin-left:auto;margin-right:auto}.ck-content .image-style-align-right{float:right;margin-left:var(--ck-image-style-spacing)}.ck-content .image-style-block-align-right{margin-left:auto;margin-right:0}.ck-content .image-style-block-align-left{margin-left:0;margin-right:auto}.ck-content p+.image-style-align-left,.ck-content p+.image-style-align-right,.ck-content p+.image-style-side{margin-top:0}.ck-content .image-inline.image-style-align-left,.ck-content .image-inline.image-style-align-right{margin-bottom:var(--ck-inline-image-style-spacing);margin-top:var(--ck-inline-image-style-spacing)}.ck-content .image-inline.image-style-align-left{margin-right:var(--ck-inline-image-style-spacing)}.ck-content .image-inline.image-style-align-right{margin-left:var(--ck-inline-image-style-spacing)}.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__action:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover),.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__action:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover){background-color:var(--ck-color-button-on-background)}.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__action:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover):after,.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__action:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover):after{display:none}.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open:hover>.ck-splitbutton__action:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open:hover>.ck-splitbutton__arrow:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open:hover>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover){background-color:var(--ck-color-button-on-hover-background)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imagestyle.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,8BAA+B,CAC/B,qEACD,CAMC,qFAEC,oDACD,CAIA,yEAEC,UACD,CAEA,8BACC,WAAY,CACZ,yCAA0C,CAC1C,aACD,CAEA,oCACC,UAAW,CACX,0CACD,CAEA,sCACC,gBAAiB,CACjB,iBACD,CAEA,qCACC,WAAY,CACZ,yCACD,CAEA,2CAEC,gBAAiB,CADjB,cAED,CAEA,0CACC,aAAc,CACd,iBACD,CAGA,6GAGC,YACD,CAGC,mGAGC,kDAAmD,CADnD,+CAED,CAEA,iDACC,iDACD,CAEA,kDACC,gDACD,CAUC,0lBAGC,qDAKD,CAHC,8nBACC,YACD,CAKD,oVAGC,2DACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-image-style-spacing: 1.5em;\\n\\t--ck-inline-image-style-spacing: calc(var(--ck-image-style-spacing) / 2);\\n}\\n\\n.ck-content {\\n\\t/* Provides a minimal side margin for the left and right aligned images, so that the user has a visual feedback\\n\\tconfirming successful application of the style if image width exceeds the editor's size.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9342 */\\n\\t& .image-style-block-align-left,\\n\\t& .image-style-block-align-right {\\n\\t\\tmax-width: calc(100% - var(--ck-image-style-spacing));\\n\\t}\\n\\n\\t/* Allows displaying multiple floating images in the same line.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9183#issuecomment-804988132 */\\n\\t& .image-style-align-left,\\n\\t& .image-style-align-right {\\n\\t\\tclear: none;\\n\\t}\\n\\n\\t& .image-style-side {\\n\\t\\tfloat: right;\\n\\t\\tmargin-left: var(--ck-image-style-spacing);\\n\\t\\tmax-width: 50%;\\n\\t}\\n\\n\\t& .image-style-align-left {\\n\\t\\tfloat: left;\\n\\t\\tmargin-right: var(--ck-image-style-spacing);\\n\\t}\\n\\n\\t& .image-style-align-center {\\n\\t\\tmargin-left: auto;\\n\\t\\tmargin-right: auto;\\n\\t}\\n\\n\\t& .image-style-align-right {\\n\\t\\tfloat: right;\\n\\t\\tmargin-left: var(--ck-image-style-spacing);\\n\\t}\\n\\n\\t& .image-style-block-align-right {\\n\\t\\tmargin-right: 0;\\n\\t\\tmargin-left: auto;\\n\\t}\\n\\n\\t& .image-style-block-align-left {\\n\\t\\tmargin-left: 0;\\n\\t\\tmargin-right: auto;\\n\\t}\\n\\n\\t/* Simulates margin collapsing with the preceding paragraph, which does not work for the floating elements. */\\n\\t& p + .image-style-align-left,\\n\\t& p + .image-style-align-right,\\n\\t& p + .image-style-side {\\n\\t\\tmargin-top: 0;\\n\\t}\\n\\n\\t& .image-inline {\\n\\t\\t&.image-style-align-left,\\n\\t\\t&.image-style-align-right {\\n\\t\\t\\tmargin-top: var(--ck-inline-image-style-spacing);\\n\\t\\t\\tmargin-bottom: var(--ck-inline-image-style-spacing);\\n\\t\\t}\\n\\n\\t\\t&.image-style-align-left {\\n\\t\\t\\tmargin-right: var(--ck-inline-image-style-spacing);\\n\\t\\t}\\n\\n\\t\\t&.image-style-align-right {\\n\\t\\t\\tmargin-left: var(--ck-inline-image-style-spacing);\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-splitbutton {\\n\\t/* The button should display as a regular drop-down if the action button\\n\\tis forced to fire the same action as the arrow button. */\\n\\t&.ck-splitbutton_flatten {\\n\\t\\t&:hover,\\n\\t\\t&.ck-splitbutton_open {\\n\\t\\t\\t& > .ck-splitbutton__action:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled):not(:hover) {\\n\\t\\t\\t\\tbackground-color: var(--ck-color-button-on-background);\\n\\n\\t\\t\\t\\t&::after {\\n\\t\\t\\t\\t\\tdisplay: none;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&.ck-splitbutton_open:hover {\\n\\t\\t\\t& > .ck-splitbutton__action:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled):not(:hover) {\\n\\t\\t\\t\\tbackground-color: var(--ck-color-button-on-hover-background);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-image-upload-complete-icon{border-radius:50%;display:block;position:absolute;right:min(var(--ck-spacing-medium),6%);top:min(var(--ck-spacing-medium),6%);z-index:1}.ck-image-upload-complete-icon:after{content:\\\"\\\";position:absolute}:root{--ck-color-image-upload-icon:#fff;--ck-color-image-upload-icon-background:#008a00;--ck-image-upload-icon-size:20;--ck-image-upload-icon-width:2px;--ck-image-upload-icon-is-visible:clamp(0px,100% - 50px,1px)}.ck-image-upload-complete-icon{animation-delay:0ms,3s;animation-duration:.5s,.5s;animation-fill-mode:forwards,forwards;animation-name:ck-upload-complete-icon-show,ck-upload-complete-icon-hide;background:var(--ck-color-image-upload-icon-background);font-size:calc(1px*var(--ck-image-upload-icon-size));height:calc(var(--ck-image-upload-icon-is-visible)*var(--ck-image-upload-icon-size));opacity:0;overflow:hidden;width:calc(var(--ck-image-upload-icon-is-visible)*var(--ck-image-upload-icon-size))}.ck-image-upload-complete-icon:after{animation-delay:.5s;animation-duration:.5s;animation-fill-mode:forwards;animation-name:ck-upload-complete-icon-check;border-right:var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);border-top:var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);box-sizing:border-box;height:0;left:25%;opacity:0;top:50%;transform:scaleX(-1) rotate(135deg);transform-origin:left top;width:0}@keyframes ck-upload-complete-icon-show{0%{opacity:0}to{opacity:1}}@keyframes ck-upload-complete-icon-hide{0%{opacity:1}to{opacity:0}}@keyframes ck-upload-complete-icon-check{0%{height:0;opacity:1;width:0}33%{height:0;width:.3em}to{height:.45em;opacity:1;width:.3em}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageuploadicon.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-image/imageuploadicon.css\"],\"names\":[],\"mappings\":\"AAKA,+BAUC,iBAAkB,CATlB,aAAc,CACd,iBAAkB,CAOlB,sCAAwC,CADxC,oCAAsC,CAGtC,SAMD,CAJC,qCACC,UAAW,CACX,iBACD,CChBD,MACC,iCAA8C,CAC9C,+CAA4D,CAG5D,8BAA+B,CAC/B,gCAAiC,CACjC,4DACD,CAEA,+BAWC,sBAA4B,CAN5B,0BAAgC,CADhC,qCAAuC,CADvC,wEAA0E,CAD1E,uDAAwD,CAMxD,oDAAuD,CAWvD,oFAAuF,CAlBvF,SAAU,CAgBV,eAAgB,CAChB,mFA0BD,CAtBC,qCAgBC,mBAAsB,CADtB,sBAAyB,CAEzB,4BAA6B,CAH7B,4CAA6C,CAF7C,sFAAuF,CADvF,oFAAqF,CASrF,qBAAsB,CAdtB,QAAS,CAJT,QAAS,CAGT,SAAU,CADV,OAAQ,CAKR,mCAAoC,CACpC,yBAA0B,CAH1B,OAcD,CAGD,wCACC,GACC,SACD,CAEA,GACC,SACD,CACD,CAEA,wCACC,GACC,SACD,CAEA,GACC,SACD,CACD,CAEA,yCACC,GAGC,QAAS,CAFT,SAAU,CACV,OAED,CACA,IAEC,QAAS,CADT,UAED,CACA,GAGC,YAAc,CAFd,SAAU,CACV,UAED,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-image-upload-complete-icon {\\n\\tdisplay: block;\\n\\tposition: absolute;\\n\\n\\t/*\\n\\t * Smaller images should have the icon closer to the border.\\n\\t * Match the icon position with the linked image indicator brought by the link image feature.\\n\\t */\\n\\ttop: min(var(--ck-spacing-medium), 6%);\\n\\tright: min(var(--ck-spacing-medium), 6%);\\n\\tborder-radius: 50%;\\n\\tz-index: 1;\\n\\n\\t&::after {\\n\\t\\tcontent: \\\"\\\";\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-image-upload-icon: hsl(0, 0%, 100%);\\n\\t--ck-color-image-upload-icon-background: hsl(120, 100%, 27%);\\n\\n\\t/* Match the icon size with the linked image indicator brought by the link image feature. */\\n\\t--ck-image-upload-icon-size: 20;\\n\\t--ck-image-upload-icon-width: 2px;\\n\\t--ck-image-upload-icon-is-visible: clamp(0px, 100% - 50px, 1px);\\n}\\n\\n.ck-image-upload-complete-icon {\\n\\topacity: 0;\\n\\tbackground: var(--ck-color-image-upload-icon-background);\\n\\tanimation-name: ck-upload-complete-icon-show, ck-upload-complete-icon-hide;\\n\\tanimation-fill-mode: forwards, forwards;\\n\\tanimation-duration: 500ms, 500ms;\\n\\n\\t/* To make animation scalable. */\\n\\tfont-size: calc(1px * var(--ck-image-upload-icon-size));\\n\\n\\t/* Hide completed upload icon after 3 seconds. */\\n\\tanimation-delay: 0ms, 3000ms;\\n\\n\\t/*\\n\\t * Use CSS math to simulate container queries.\\n\\t * https://css-tricks.com/the-raven-technique-one-step-closer-to-container-queries/#what-about-showing-and-hiding-things\\n\\t */\\n\\toverflow: hidden;\\n\\twidth: calc(var(--ck-image-upload-icon-is-visible) * var(--ck-image-upload-icon-size));\\n\\theight: calc(var(--ck-image-upload-icon-is-visible) * var(--ck-image-upload-icon-size));\\n\\n\\t/* This is check icon element made from border-width mixed with animations. */\\n\\t&::after {\\n\\t\\t/* Because of border transformation we need to \\\"hard code\\\" left position. */\\n\\t\\tleft: 25%;\\n\\n\\t\\ttop: 50%;\\n\\t\\topacity: 0;\\n\\t\\theight: 0;\\n\\t\\twidth: 0;\\n\\n\\t\\ttransform: scaleX(-1) rotate(135deg);\\n\\t\\ttransform-origin: left top;\\n\\t\\tborder-top: var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);\\n\\t\\tborder-right: var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);\\n\\n\\t\\tanimation-name: ck-upload-complete-icon-check;\\n\\t\\tanimation-duration: 500ms;\\n\\t\\tanimation-delay: 500ms;\\n\\t\\tanimation-fill-mode: forwards;\\n\\n\\t\\t/* #1095. While reset is not providing proper box-sizing for pseudoelements, we need to handle it. */\\n\\t\\tbox-sizing: border-box;\\n\\t}\\n}\\n\\n@keyframes ck-upload-complete-icon-show {\\n\\tfrom {\\n\\t\\topacity: 0;\\n\\t}\\n\\n\\tto {\\n\\t\\topacity: 1;\\n\\t}\\n}\\n\\n@keyframes ck-upload-complete-icon-hide {\\n\\tfrom {\\n\\t\\topacity: 1;\\n\\t}\\n\\n\\tto {\\n\\t\\topacity: 0;\\n\\t}\\n}\\n\\n@keyframes ck-upload-complete-icon-check {\\n\\t0% {\\n\\t\\topacity: 1;\\n\\t\\twidth: 0;\\n\\t\\theight: 0;\\n\\t}\\n\\t33% {\\n\\t\\twidth: 0.3em;\\n\\t\\theight: 0;\\n\\t}\\n\\t100% {\\n\\t\\topacity: 1;\\n\\t\\twidth: 0.3em;\\n\\t\\theight: 0.45em;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-upload-placeholder-loader{align-items:center;display:flex;justify-content:center;left:0;position:absolute;top:0}.ck .ck-upload-placeholder-loader:before{content:\\\"\\\";position:relative}:root{--ck-color-upload-placeholder-loader:#b3b3b3;--ck-upload-placeholder-loader-size:32px;--ck-upload-placeholder-image-aspect-ratio:2.8}.ck .ck-image-upload-placeholder{margin:0;width:100%}.ck .ck-image-upload-placeholder.image-inline{width:calc(var(--ck-upload-placeholder-loader-size)*2*var(--ck-upload-placeholder-image-aspect-ratio))}.ck .ck-image-upload-placeholder img{aspect-ratio:var(--ck-upload-placeholder-image-aspect-ratio)}.ck .ck-upload-placeholder-loader{height:100%;width:100%}.ck .ck-upload-placeholder-loader:before{animation:ck-upload-placeholder-loader 1s linear infinite;border-radius:50%;border-right:2px solid transparent;border-top:3px solid var(--ck-color-upload-placeholder-loader);height:var(--ck-upload-placeholder-loader-size);width:var(--ck-upload-placeholder-loader-size)}@keyframes ck-upload-placeholder-loader{to{transform:rotate(1turn)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageuploadloader.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-image/imageuploadloader.css\"],\"names\":[],\"mappings\":\"AAKA,kCAGC,kBAAmB,CADnB,YAAa,CAEb,sBAAuB,CAEvB,MAAO,CALP,iBAAkB,CAIlB,KAOD,CAJC,yCACC,UAAW,CACX,iBACD,CCXD,MACC,4CAAqD,CACrD,wCAAyC,CACzC,8CACD,CAEA,iCAGC,QAAS,CADT,UAgBD,CAbC,8CACC,sGACD,CAEA,qCAOC,4DACD,CAGD,kCAEC,WAAY,CADZ,UAWD,CARC,yCAMC,yDAA0D,CAH1D,iBAAkB,CAElB,kCAAmC,CADnC,8DAA+D,CAF/D,+CAAgD,CADhD,8CAMD,CAGD,wCACC,GACC,uBACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-upload-placeholder-loader {\\n\\tposition: absolute;\\n\\tdisplay: flex;\\n\\talign-items: center;\\n\\tjustify-content: center;\\n\\ttop: 0;\\n\\tleft: 0;\\n\\n\\t&::before {\\n\\t\\tcontent: '';\\n\\t\\tposition: relative;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-upload-placeholder-loader: hsl(0, 0%, 70%);\\n\\t--ck-upload-placeholder-loader-size: 32px;\\n\\t--ck-upload-placeholder-image-aspect-ratio: 2.8;\\n}\\n\\n.ck .ck-image-upload-placeholder {\\n\\t/* We need to control the full width of the SVG gray background. */\\n\\twidth: 100%;\\n\\tmargin: 0;\\n\\n\\t&.image-inline {\\n\\t\\twidth: calc( 2 * var(--ck-upload-placeholder-loader-size) * var(--ck-upload-placeholder-image-aspect-ratio) );\\n\\t}\\n\\n\\t& img {\\n\\t\\t/*\\n\\t\\t * This is an arbitrary aspect for a 1x1 px GIF to display to the user. Not too tall, not too short.\\n\\t\\t * There's nothing special about this number except that it should make the image placeholder look like\\n\\t\\t * a real image during this short period after the upload started and before the image was read from the\\n\\t\\t * file system (and a rich preview was loaded).\\n\\t\\t */\\n\\t\\taspect-ratio: var(--ck-upload-placeholder-image-aspect-ratio);\\n\\t}\\n}\\n\\n.ck .ck-upload-placeholder-loader {\\n\\twidth: 100%;\\n\\theight: 100%;\\n\\n\\t&::before {\\n\\t\\twidth: var(--ck-upload-placeholder-loader-size);\\n\\t\\theight: var(--ck-upload-placeholder-loader-size);\\n\\t\\tborder-radius: 50%;\\n\\t\\tborder-top: 3px solid var(--ck-color-upload-placeholder-loader);\\n\\t\\tborder-right: 2px solid transparent;\\n\\t\\tanimation: ck-upload-placeholder-loader 1s linear infinite;\\n\\t}\\n}\\n\\n@keyframes ck-upload-placeholder-loader {\\n\\tto {\\n\\t\\ttransform: rotate( 360deg );\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-editor__editable .image,.ck.ck-editor__editable .image-inline{position:relative}.ck.ck-editor__editable .image .ck-progress-bar,.ck.ck-editor__editable .image-inline .ck-progress-bar{left:0;position:absolute;top:0}.ck.ck-editor__editable .image-inline.ck-appear,.ck.ck-editor__editable .image.ck-appear{animation:fadeIn .7s}.ck.ck-editor__editable .image .ck-progress-bar,.ck.ck-editor__editable .image-inline .ck-progress-bar{background:var(--ck-color-upload-bar-background);height:2px;transition:width .1s;width:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageuploadprogress.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-image/imageuploadprogress.css\"],\"names\":[],\"mappings\":\"AAMC,qEAEC,iBACD,CAGA,uGAIC,MAAO,CAFP,iBAAkB,CAClB,KAED,CCRC,yFACC,oBACD,CAID,uGAIC,gDAAiD,CAFjD,UAAW,CAGX,oBAAuB,CAFvB,OAGD,CAGD,kBACC,GAAO,SAAY,CACnB,GAAO,SAAY,CACpB\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-editor__editable {\\n\\t& .image,\\n\\t& .image-inline {\\n\\t\\tposition: relative;\\n\\t}\\n\\n\\t/* Upload progress bar. */\\n\\t& .image .ck-progress-bar,\\n\\t& .image-inline .ck-progress-bar {\\n\\t\\tposition: absolute;\\n\\t\\ttop: 0;\\n\\t\\tleft: 0;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-editor__editable {\\n\\t& .image,\\n\\t& .image-inline {\\n\\t\\t/* Showing animation. */\\n\\t\\t&.ck-appear {\\n\\t\\t\\tanimation: fadeIn 700ms;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Upload progress bar. */\\n\\t& .image .ck-progress-bar,\\n\\t& .image-inline .ck-progress-bar {\\n\\t\\theight: 2px;\\n\\t\\twidth: 0;\\n\\t\\tbackground: var(--ck-color-upload-bar-background);\\n\\t\\ttransition: width 100ms;\\n\\t}\\n}\\n\\n@keyframes fadeIn {\\n\\tfrom { opacity: 0; }\\n\\tto   { opacity: 1; }\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-text-alternative-form{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-text-alternative-form .ck-labeled-field-view{display:inline-block}.ck.ck-text-alternative-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-text-alternative-form{flex-wrap:wrap}.ck.ck-text-alternative-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-text-alternative-form .ck-button{flex-basis:50%}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/textalternativeform.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\"],\"names\":[],\"mappings\":\"AAOA,6BACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,oDACC,oBACD,CAEA,uCACC,YACD,CCZA,oCDCD,6BAcE,cAUF,CARE,oDACC,eACD,CAEA,wCACC,cACD,CCrBD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-text-alternative-form {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\n\\t& .ck-labeled-field-view {\\n\\t\\tdisplay: inline-block;\\n\\t}\\n\\n\\t& .ck-label {\\n\\t\\tdisplay: none;\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tflex-wrap: wrap;\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tflex-basis: 100%;\\n\\t\\t}\\n\\n\\t\\t& .ck-button {\\n\\t\\t\\tflex-basis: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-collapsible.ck-collapsible_collapsed>.ck-collapsible__children{display:none}:root{--ck-collapsible-arrow-size:calc(var(--ck-icon-size)*0.5)}.ck.ck-collapsible>.ck.ck-button{border-radius:0;color:inherit;font-weight:700;padding:var(--ck-spacing-medium) var(--ck-spacing-large);width:100%}.ck.ck-collapsible>.ck.ck-button:focus{background:transparent}.ck.ck-collapsible>.ck.ck-button:active,.ck.ck-collapsible>.ck.ck-button:hover:not(:focus),.ck.ck-collapsible>.ck.ck-button:not(:focus){background:transparent;border-color:transparent;box-shadow:none}.ck.ck-collapsible>.ck.ck-button>.ck-icon{margin-right:var(--ck-spacing-medium);width:var(--ck-collapsible-arrow-size)}.ck.ck-collapsible>.ck-collapsible__children{padding:0 var(--ck-spacing-large) var(--ck-spacing-large)}.ck.ck-collapsible.ck-collapsible_collapsed>.ck.ck-button .ck-icon{transform:rotate(-90deg)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-list/theme/collapsible.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/collapsible.css\"],\"names\":[],\"mappings\":\"AAMC,sEACC,YACD,CCHD,MACC,yDACD,CAGC,iCAIC,eAAgB,CAChB,aAAc,CAHd,eAAiB,CACjB,wDAAyD,CAFzD,UAoBD,CAdC,uCACC,sBACD,CAEA,wIACC,sBAAuB,CACvB,wBAAyB,CACzB,eACD,CAEA,0CACC,qCAAsC,CACtC,sCACD,CAGD,6CACC,yDACD,CAGC,mEACC,wBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-collapsible.ck-collapsible_collapsed {\\n\\t& > .ck-collapsible__children {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-collapsible-arrow-size: calc(0.5 * var(--ck-icon-size));\\n}\\n\\n.ck.ck-collapsible {\\n\\t& > .ck.ck-button {\\n\\t\\twidth: 100%;\\n\\t\\tfont-weight: bold;\\n\\t\\tpadding: var(--ck-spacing-medium) var(--ck-spacing-large);\\n\\t\\tborder-radius: 0;\\n\\t\\tcolor: inherit;\\n\\n\\t\\t&:focus {\\n\\t\\t\\tbackground: transparent;\\n\\t\\t}\\n\\n\\t\\t&:active, &:not(:focus), &:hover:not(:focus) {\\n\\t\\t\\tbackground: transparent;\\n\\t\\t\\tborder-color: transparent;\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t}\\n\\n\\t\\t& > .ck-icon {\\n\\t\\t\\tmargin-right: var(--ck-spacing-medium);\\n\\t\\t\\twidth: var(--ck-collapsible-arrow-size);\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-collapsible__children {\\n\\t\\tpadding: 0 var(--ck-spacing-large) var(--ck-spacing-large);\\n\\t}\\n\\n\\t&.ck-collapsible_collapsed {\\n\\t\\t& > .ck.ck-button .ck-icon {\\n\\t\\t\\ttransform: rotate(-90deg);\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-list-properties.ck-list-properties_without-styles{padding:var(--ck-spacing-large)}.ck.ck-list-properties.ck-list-properties_without-styles>*{min-width:14em}.ck.ck-list-properties.ck-list-properties_without-styles>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-list-styles-list{grid-template-columns:repeat(4,auto)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible{border-top:1px solid var(--ck-color-base-border)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*{width:100%}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties .ck.ck-numbered-list-properties__start-index .ck-input{min-width:auto;width:100%}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order{background:transparent;margin-bottom:calc(var(--ck-spacing-tiny)*-1);padding-left:0;padding-right:0}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:active,.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:hover{background:none;border-color:transparent;box-shadow:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/listproperties.css\"],\"names\":[],\"mappings\":\"AAOC,yDACC,+BASD,CAPC,2DACC,cAKD,CAHC,6DACC,qCACD,CASD,wFACC,oCACD,CAGA,mFACC,gDAWD,CARE,+GACC,UAKD,CAHC,iHACC,qCACD,CAMJ,8EACC,cAAe,CACf,UACD,CAEA,uEACC,sBAAuB,CAGvB,6CAAgD,CAFhD,cAAe,CACf,eAQD,CALC,2JAGC,eAAgB,CADhB,wBAAyB,CADzB,eAGD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-list-properties {\\n\\t/* When there are no list styles and there is no collapsible. */\\n\\t&.ck-list-properties_without-styles {\\n\\t\\tpadding: var(--ck-spacing-large);\\n\\n\\t\\t& > * {\\n\\t\\t\\tmin-width: 14em;\\n\\n\\t\\t\\t& + * {\\n\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * When the numbered list property fields (start at, reversed) should be displayed,\\n\\t * more horizontal space is needed. Reconfigure the style grid to create that space.\\n\\t */\\n\\t&.ck-list-properties_with-numbered-properties {\\n\\t\\t& > .ck-list-styles-list {\\n\\t\\t\\tgrid-template-columns: repeat( 4, auto );\\n\\t\\t}\\n\\n\\t\\t/* When list styles are rendered and property fields are in a collapsible. */\\n\\t\\t& > .ck-collapsible {\\n\\t\\t\\tborder-top: 1px solid var(--ck-color-base-border);\\n\\n\\t\\t\\t& > .ck-collapsible__children {\\n\\t\\t\\t\\t& > * {\\n\\t\\t\\t\\t\\twidth: 100%;\\n\\n\\t\\t\\t\\t\\t& + * {\\n\\t\\t\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\t\\t\\t\\t\\t}\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-numbered-list-properties__start-index .ck-input {\\n\\t\\tmin-width: auto;\\n\\t\\twidth: 100%;\\n\\t}\\n\\n\\t& .ck.ck-numbered-list-properties__reversed-order {\\n\\t\\tbackground: transparent;\\n\\t\\tpadding-left: 0;\\n\\t\\tpadding-right: 0;\\n\\t\\tmargin-bottom: calc(-1 * var(--ck-spacing-tiny));\\n\\n\\t\\t&:active, &:hover {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t\\tborder-color: transparent;\\n\\t\\t\\tbackground: none;\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-list-styles-list{display:grid}.ck-content ol{list-style-type:decimal}.ck-content ol ol{list-style-type:lower-latin}.ck-content ol ol ol{list-style-type:lower-roman}.ck-content ol ol ol ol{list-style-type:upper-latin}.ck-content ol ol ol ol ol{list-style-type:upper-roman}.ck-content ul{list-style-type:circle}.ck-content ul ul{list-style-type:disc}.ck-content ul ul ul,.ck-content ul ul ul ul{list-style-type:square}:root{--ck-list-style-button-size:44px}.ck.ck-list-styles-list{column-gap:var(--ck-spacing-medium);grid-template-columns:repeat(3,auto);padding:var(--ck-spacing-large);row-gap:var(--ck-spacing-medium)}.ck.ck-list-styles-list .ck-button{box-sizing:content-box;margin:0;padding:0}.ck.ck-list-styles-list .ck-button,.ck.ck-list-styles-list .ck-button .ck-icon{height:var(--ck-list-style-button-size);width:var(--ck-list-style-button-size)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-list/theme/liststyles.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/liststyles.css\"],\"names\":[],\"mappings\":\"AAKA,wBACC,YACD,CAEA,eACC,uBAiBD,CAfC,kBACC,2BAaD,CAXC,qBACC,2BASD,CAPC,wBACC,2BAKD,CAHC,2BACC,2BACD,CAMJ,eACC,sBAaD,CAXC,kBACC,oBASD,CAJE,6CACC,sBACD,CCnCH,MACC,gCACD,CAEA,wBAGC,mCAAoC,CAFpC,oCAAwC,CAGxC,+BAAgC,CAFhC,gCA4BD,CAxBC,mCAiBC,sBAAuB,CAPvB,QAAS,CANT,SAmBD,CAJC,+EAhBA,uCAAwC,CADxC,sCAoBA\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-list-styles-list {\\n\\tdisplay: grid;\\n}\\n\\n.ck-content ol {\\n\\tlist-style-type: decimal;\\n\\n\\t& ol {\\n\\t\\tlist-style-type: lower-latin;\\n\\n\\t\\t& ol {\\n\\t\\t\\tlist-style-type: lower-roman;\\n\\n\\t\\t\\t& ol {\\n\\t\\t\\t\\tlist-style-type: upper-latin;\\n\\n\\t\\t\\t\\t& ol {\\n\\t\\t\\t\\t\\tlist-style-type: upper-roman;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck-content ul {\\n\\tlist-style-type: circle;\\n\\n\\t& ul {\\n\\t\\tlist-style-type: disc;\\n\\n\\t\\t& ul {\\n\\t\\t\\tlist-style-type: square;\\n\\n\\t\\t\\t& ul {\\n\\t\\t\\t\\tlist-style-type: square;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-list-style-button-size: 44px;\\n}\\n\\n.ck.ck-list-styles-list {\\n\\tgrid-template-columns: repeat( 3, auto );\\n\\trow-gap: var(--ck-spacing-medium);\\n\\tcolumn-gap: var(--ck-spacing-medium);\\n\\tpadding: var(--ck-spacing-large);\\n\\n\\t& .ck-button {\\n\\t\\t/* Make the button look like a thumbnail (the icon \\\"takes it all\\\"). */\\n\\t\\twidth: var(--ck-list-style-button-size);\\n\\t\\theight: var(--ck-list-style-button-size);\\n\\t\\tpadding: 0;\\n\\n\\t\\t/*\\n\\t\\t * Buttons are aligned by the grid so disable default button margins to not collide with the\\n\\t\\t * gaps in the grid.\\n\\t\\t */\\n\\t\\tmargin: 0;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the button border (which is displayed on focus, BTW) does not steal pixels\\n\\t\\t * from the button dimensions and, as a result, decrease the size of the icon\\n\\t\\t * (which becomes blurry as it scales down).\\n\\t\\t */\\n\\t\\tbox-sizing: content-box;\\n\\n\\t\\t& .ck-icon {\\n\\t\\t\\twidth: var(--ck-list-style-button-size);\\n\\t\\t\\theight: var(--ck-list-style-button-size);\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-todo-list-checkmark-size:16px}.ck-content .todo-list{list-style:none}.ck-content .todo-list li{margin-bottom:5px}.ck-content .todo-list li .todo-list{margin-top:5px}.ck-content .todo-list .todo-list__label>input{-webkit-appearance:none;border:0;display:inline-block;height:var(--ck-todo-list-checkmark-size);left:-25px;margin-left:0;margin-right:-15px;position:relative;right:0;vertical-align:middle;width:var(--ck-todo-list-checkmark-size)}.ck-content .todo-list .todo-list__label>input:before{border:1px solid #333;border-radius:2px;box-sizing:border-box;content:\\\"\\\";display:block;height:100%;position:absolute;transition:box-shadow .25s ease-in-out,background .25s ease-in-out,border .25s ease-in-out;width:100%}.ck-content .todo-list .todo-list__label>input:after{border-color:transparent;border-style:solid;border-width:0 calc(var(--ck-todo-list-checkmark-size)/8) calc(var(--ck-todo-list-checkmark-size)/8) 0;box-sizing:content-box;content:\\\"\\\";display:block;height:calc(var(--ck-todo-list-checkmark-size)/2.6);left:calc(var(--ck-todo-list-checkmark-size)/3);pointer-events:none;position:absolute;top:calc(var(--ck-todo-list-checkmark-size)/5.3);transform:rotate(45deg);width:calc(var(--ck-todo-list-checkmark-size)/5.3)}.ck-content .todo-list .todo-list__label>input[checked]:before{background:#26ab33;border-color:#26ab33}.ck-content .todo-list .todo-list__label>input[checked]:after{border-color:#fff}.ck-content .todo-list .todo-list__label .todo-list__label__description{vertical-align:middle}[dir=rtl] .todo-list .todo-list__label>input{left:0;margin-left:-15px;margin-right:0;right:-25px}.ck-editor__editable .todo-list .todo-list__label>input{cursor:pointer}.ck-editor__editable .todo-list .todo-list__label>input:hover:before{box-shadow:0 0 0 5px rgba(0,0,0,.1)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-list/theme/todolist.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,kCACD,CAEA,uBACC,eA0ED,CAxEC,0BACC,iBAKD,CAHC,qCACC,cACD,CAIA,+CACC,uBAAwB,CAQxB,QAAS,CAPT,oBAAqB,CAGrB,yCAA0C,CAO1C,UAAW,CAGX,aAAc,CAFd,kBAAmB,CAVnB,iBAAkB,CAWlB,OAAQ,CARR,qBAAsB,CAFtB,wCAqDD,CAxCC,sDAOC,qBAAiC,CACjC,iBAAkB,CALlB,qBAAsB,CACtB,UAAW,CAHX,aAAc,CAKd,WAAY,CAJZ,iBAAkB,CAOlB,0FAAgG,CAJhG,UAKD,CAEA,qDAaC,wBAAyB,CADzB,kBAAmB,CAEnB,sGAA+G,CAX/G,sBAAuB,CAEvB,UAAW,CAJX,aAAc,CAUd,mDAAwD,CAHxD,+CAAoD,CAJpD,mBAAoB,CAFpB,iBAAkB,CAOlB,gDAAqD,CAMrD,uBAAwB,CALxB,kDAMD,CAGC,+DACC,kBAA8B,CAC9B,oBACD,CAEA,8DACC,iBACD,CAIF,wEACC,qBACD,CAKF,6CACC,MAAO,CAGP,iBAAkB,CAFlB,cAAe,CACf,WAED,CAMA,wDACC,cAKD,CAHC,qEACC,mCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-todo-list-checkmark-size: 16px;\\n}\\n\\n.ck-content .todo-list {\\n\\tlist-style: none;\\n\\n\\t& li {\\n\\t\\tmargin-bottom: 5px;\\n\\n\\t\\t& .todo-list {\\n\\t\\t\\tmargin-top: 5px;\\n\\t\\t}\\n\\t}\\n\\n\\t& .todo-list__label {\\n\\t\\t& > input {\\n\\t\\t\\t-webkit-appearance: none;\\n\\t\\t\\tdisplay: inline-block;\\n\\t\\t\\tposition: relative;\\n\\t\\t\\twidth: var(--ck-todo-list-checkmark-size);\\n\\t\\t\\theight: var(--ck-todo-list-checkmark-size);\\n\\t\\t\\tvertical-align: middle;\\n\\n\\t\\t\\t/* Needed on iOS */\\n\\t\\t\\tborder: 0;\\n\\n\\t\\t\\t/* LTR styles */\\n\\t\\t\\tleft: -25px;\\n\\t\\t\\tmargin-right: -15px;\\n\\t\\t\\tright: 0;\\n\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t&::before {\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tbox-sizing: border-box;\\n\\t\\t\\t\\tcontent: '';\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\theight: 100%;\\n\\t\\t\\t\\tborder: 1px solid hsl(0, 0%, 20%);\\n\\t\\t\\t\\tborder-radius: 2px;\\n\\t\\t\\t\\ttransition: 250ms ease-in-out box-shadow, 250ms ease-in-out background, 250ms ease-in-out border;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tbox-sizing: content-box;\\n\\t\\t\\t\\tpointer-events: none;\\n\\t\\t\\t\\tcontent: '';\\n\\n\\t\\t\\t\\t/* Calculate tick position, size and border-width proportional to the checkmark size. */\\n\\t\\t\\t\\tleft: calc( var(--ck-todo-list-checkmark-size) / 3 );\\n\\t\\t\\t\\ttop: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\\n\\t\\t\\t\\twidth: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\\n\\t\\t\\t\\theight: calc( var(--ck-todo-list-checkmark-size) / 2.6 );\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t\\tborder-color: transparent;\\n\\t\\t\\t\\tborder-width: 0 calc( var(--ck-todo-list-checkmark-size) / 8 ) calc( var(--ck-todo-list-checkmark-size) / 8 ) 0;\\n\\t\\t\\t\\ttransform: rotate(45deg);\\n\\t\\t\\t}\\n\\n\\t\\t\\t&[checked] {\\n\\t\\t\\t\\t&::before {\\n\\t\\t\\t\\t\\tbackground: hsl(126, 64%, 41%);\\n\\t\\t\\t\\t\\tborder-color: hsl(126, 64%, 41%);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t&::after {\\n\\t\\t\\t\\t\\tborder-color: hsl(0, 0%, 100%);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& .todo-list__label__description {\\n\\t\\t\\tvertical-align: middle;\\n\\t\\t}\\n\\t}\\n}\\n\\n/* RTL styles */\\n[dir=\\\"rtl\\\"] .todo-list .todo-list__label > input {\\n\\tleft: 0;\\n\\tmargin-right: 0;\\n\\tright: -25px;\\n\\tmargin-left: -15px;\\n}\\n\\n/*\\n * To-do list should be interactive only during the editing\\n * (https://github.com/ckeditor/ckeditor5/issues/2090).\\n */\\n.ck-editor__editable .todo-list .todo-list__label > input {\\n\\tcursor: pointer;\\n\\n\\t&:hover::before {\\n\\t\\tbox-shadow: 0 0 0 5px hsla(0, 0%, 0%, 0.1);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-input-color{display:flex;flex-direction:row-reverse;width:100%}.ck.ck-input-color>input.ck.ck-input-text{flex-grow:1;min-width:auto}.ck.ck-input-color>div.ck.ck-dropdown{min-width:auto}.ck.ck-input-color>div.ck.ck-dropdown>.ck-input-color__button .ck-dropdown__arrow{display:none}.ck.ck-input-color .ck.ck-input-color__button{display:flex}.ck.ck-input-color .ck.ck-input-color__button .ck.ck-input-color__button__preview{overflow:hidden;position:relative}.ck.ck-input-color .ck.ck-input-color__button .ck.ck-input-color__button__preview>.ck.ck-input-color__button__preview__no-color-indicator{display:block;position:absolute}[dir=ltr] .ck.ck-input-color>.ck.ck-input-text{border-bottom-right-radius:0;border-top-right-radius:0}[dir=rtl] .ck.ck-input-color>.ck.ck-input-text{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-input-color>.ck.ck-input-text:focus{z-index:0}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{padding:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-left-radius:0;border-top-left-radius:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-left:1px solid transparent}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-right-radius:0;border-top-right-radius:0}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-right:1px solid transparent}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button.ck-disabled{background:var(--ck-color-input-disabled-background)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border-radius:0}.ck-rounded-corners .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview,.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border:1px solid var(--ck-color-input-border);height:20px;width:20px}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview>.ck.ck-input-color__button__preview__no-color-indicator{background:red;border-radius:2px;height:150%;left:50%;top:-30%;transform:rotate(45deg);transform-origin:50%;width:8%}.ck.ck-input-color .ck.ck-input-color__remove-color{border-bottom-left-radius:0;border-bottom-right-radius:0;padding:calc(var(--ck-spacing-standard)/2) var(--ck-spacing-standard);width:100%}.ck.ck-input-color .ck.ck-input-color__remove-color:not(:focus){border-bottom:1px solid var(--ck-color-input-border)}[dir=ltr] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-right-radius:0}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-left-radius:0}.ck.ck-input-color .ck.ck-input-color__remove-color .ck.ck-icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color .ck.ck-icon{margin-left:var(--ck-spacing-standard);margin-right:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/colorinput.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/colorinput.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAKA,mBAEC,YAAa,CACb,0BAA2B,CAF3B,UAgCD,CA5BC,0CAEC,WAAY,CADZ,cAED,CAEA,sCACC,cAMD,CAHC,kFACC,YACD,CAGD,8CAEC,YAWD,CATC,kFAEC,eAAgB,CADhB,iBAOD,CAJC,0IAEC,aAAc,CADd,iBAED,CC1BF,+CAGE,4BAA6B,CAD7B,yBAcF,CAhBA,+CAQE,2BAA4B,CAD5B,wBASF,CAHC,2CACC,SACD,CAIA,wEACC,SA0CD,CA3CA,kFAKE,2BAA4B,CAD5B,wBAuCF,CApCE,8FACC,iCACD,CATF,kFAcE,4BAA6B,CAD7B,yBA8BF,CA3BE,8FACC,kCACD,CAGD,oFACC,oDACD,CAEA,4GC1CF,eD2DE,CAjBA,+PCtCD,qCDuDC,CAjBA,4GAKC,6CAA8C,CAD9C,WAAY,CADZ,UAcD,CAVC,oKAKC,cAA6B,CAC7B,iBAAkB,CAHlB,WAAY,CADZ,QAAS,CADT,QAAS,CAMT,uBAAwB,CACxB,oBAAqB,CAJrB,QAKD,CAKH,oDAIC,2BAA4B,CAC5B,4BAA6B,CAH7B,qEAAwE,CADxE,UA0BD,CApBC,gEACC,oDACD,CATD,8DAYE,yBAeF,CA3BA,8DAgBE,wBAWF,CARC,gEACC,uCAMD,CAPA,0EAKE,sCAAuC,CADvC,cAGF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-input-color {\\n\\twidth: 100%;\\n\\tdisplay: flex;\\n\\tflex-direction: row-reverse;\\n\\n\\t& > input.ck.ck-input-text {\\n\\t\\tmin-width: auto;\\n\\t\\tflex-grow: 1;\\n\\t}\\n\\n\\t& > div.ck.ck-dropdown {\\n\\t\\tmin-width: auto;\\n\\n\\t\\t/* This dropdown has no arrow but a color preview instead. */\\n\\t\\t& > .ck-input-color__button .ck-dropdown__arrow {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-input-color__button {\\n\\t\\t/* Resolving issue with misaligned buttons on Safari (see #10589) */\\n\\t\\tdisplay: flex;\\n\\n\\t\\t& .ck.ck-input-color__button__preview {\\n\\t\\t\\tposition: relative;\\n\\t\\t\\toverflow: hidden;\\n\\n\\t\\t\\t& > .ck.ck-input-color__button__preview__no-color-indicator {\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n@import \\\"../mixins/_rounded.css\\\";\\n\\n.ck.ck-input-color {\\n\\t& > .ck.ck-input-text {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t}\\n\\n\\t\\t/* Make sure the focused input is always on top of the dropdown button so its\\n\\t\\t   outline and border are never cropped (also when the input is read-only). */\\n\\t\\t&:focus {\\n\\t\\t\\tz-index: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck.ck-dropdown {\\n\\t\\t& > .ck.ck-button.ck-input-color__button {\\n\\t\\t\\tpadding: 0;\\n\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\t\\tborder-bottom-left-radius: 0;\\n\\n\\t\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\t\\tborder-left: 1px solid transparent;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\t\\tborder-bottom-right-radius: 0;\\n\\n\\t\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\t\\tborder-right: 1px solid transparent;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t&.ck-disabled {\\n\\t\\t\\t\\tbackground: var(--ck-color-input-disabled-background);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck.ck-input-color__button__preview {\\n\\t\\t\\t\\t@mixin ck-rounded-corners;\\n\\n\\t\\t\\t\\twidth: 20px;\\n\\t\\t\\t\\theight: 20px;\\n\\t\\t\\t\\tborder: 1px solid var(--ck-color-input-border);\\n\\n\\t\\t\\t\\t& > .ck.ck-input-color__button__preview__no-color-indicator {\\n\\t\\t\\t\\t\\ttop: -30%;\\n\\t\\t\\t\\t\\tleft: 50%;\\n\\t\\t\\t\\t\\theight: 150%;\\n\\t\\t\\t\\t\\twidth: 8%;\\n\\t\\t\\t\\t\\tbackground: hsl(0, 100%, 50%);\\n\\t\\t\\t\\t\\tborder-radius: 2px;\\n\\t\\t\\t\\t\\ttransform: rotate(45deg);\\n\\t\\t\\t\\t\\ttransform-origin: 50%;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-input-color__remove-color {\\n\\t\\twidth: 100%;\\n\\t\\tpadding: calc(var(--ck-spacing-standard) / 2) var(--ck-spacing-standard);\\n\\n\\t\\tborder-bottom-left-radius: 0;\\n\\t\\tborder-bottom-right-radius: 0;\\n\\n\\t\\t&:not(:focus) {\\n\\t\\t\\tborder-bottom: 1px solid var(--ck-color-input-border);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t}\\n\\n\\t\\t& .ck.ck-icon {\\n\\t\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-right: 0;\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-form{padding:0 0 var(--ck-spacing-large)}.ck.ck-form:focus{outline:none}.ck.ck-form .ck.ck-input-text{min-width:100%;width:0}.ck.ck-form .ck.ck-dropdown{min-width:100%}.ck.ck-form .ck.ck-dropdown .ck-dropdown__button:not(:focus){border:1px solid var(--ck-color-base-border)}.ck.ck-form .ck.ck-dropdown .ck-dropdown__button .ck-button__label{width:100%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/form.css\"],\"names\":[],\"mappings\":\"AAKA,YACC,mCAyBD,CAvBC,kBAEC,YACD,CAEA,8BACC,cAAe,CACf,OACD,CAEA,4BACC,cAWD,CARE,6DACC,4CACD,CAEA,mEACC,UACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-form {\\n\\tpadding: 0 0 var(--ck-spacing-large);\\n\\n\\t&:focus {\\n\\t\\t/* See: https://github.com/ckeditor/ckeditor5/issues/4773 */\\n\\t\\toutline: none;\\n\\t}\\n\\n\\t& .ck.ck-input-text {\\n\\t\\tmin-width: 100%;\\n\\t\\twidth: 0;\\n\\t}\\n\\n\\t& .ck.ck-dropdown {\\n\\t\\tmin-width: 100%;\\n\\n\\t\\t& .ck-dropdown__button {\\n\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\tborder: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-form__row{display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:space-between}.ck.ck-form__row>:not(.ck-label){flex-grow:1}.ck.ck-form__row.ck-table-form__action-row .ck-button-cancel,.ck.ck-form__row.ck-table-form__action-row .ck-button-save{justify-content:center}.ck.ck-form__row{padding:var(--ck-spacing-standard) var(--ck-spacing-large) 0}[dir=ltr] .ck.ck-form__row>:not(.ck-label)+*{margin-left:var(--ck-spacing-large)}[dir=rtl] .ck.ck-form__row>:not(.ck-label)+*{margin-right:var(--ck-spacing-large)}.ck.ck-form__row>.ck-label{min-width:100%;width:100%}.ck.ck-form__row.ck-table-form__action-row{margin-top:var(--ck-spacing-large)}.ck.ck-form__row.ck-table-form__action-row .ck-button .ck-button__label{color:var(--ck-color-text)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/formrow.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/formrow.css\"],\"names\":[],\"mappings\":\"AAKA,iBACC,YAAa,CACb,kBAAmB,CACnB,gBAAiB,CACjB,6BAaD,CAVC,iCACC,WACD,CAGC,wHAEC,sBACD,CCbF,iBACC,4DA2BD,CAvBE,6CAEE,mCAMF,CARA,6CAME,oCAEF,CAGD,2BAEC,cAAe,CADf,UAED,CAEA,2CACC,kCAKD,CAHC,wEACC,0BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-form__row {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\tjustify-content: space-between;\\n\\n\\t/* Ignore labels that work as fieldset legends */\\n\\t& > *:not(.ck-label) {\\n\\t\\tflex-grow: 1;\\n\\t}\\n\\n\\t&.ck-table-form__action-row {\\n\\t\\t& .ck-button-save,\\n\\t\\t& .ck-button-cancel {\\n\\t\\t\\tjustify-content: center;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-form__row {\\n\\tpadding: var(--ck-spacing-standard) var(--ck-spacing-large) 0;\\n\\n\\t/* Ignore labels that work as fieldset legends */\\n\\t& > *:not(.ck-label) {\\n\\t\\t& + * {\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-large);\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-right: var(--ck-spacing-large);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-label {\\n\\t\\twidth: 100%;\\n\\t\\tmin-width: 100%;\\n\\t}\\n\\n\\t&.ck-table-form__action-row {\\n\\t\\tmargin-top: var(--ck-spacing-large);\\n\\n\\t\\t& .ck-button .ck-button__label {\\n\\t\\t\\tcolor: var(--ck-color-text);\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-insert-table-dropdown__grid{display:flex;flex-direction:row;flex-wrap:wrap}:root{--ck-insert-table-dropdown-padding:10px;--ck-insert-table-dropdown-box-height:11px;--ck-insert-table-dropdown-box-width:12px;--ck-insert-table-dropdown-box-margin:1px}.ck .ck-insert-table-dropdown__grid{padding:var(--ck-insert-table-dropdown-padding) var(--ck-insert-table-dropdown-padding) 0;width:calc(var(--ck-insert-table-dropdown-box-width)*10 + var(--ck-insert-table-dropdown-box-margin)*20 + var(--ck-insert-table-dropdown-padding)*2)}.ck .ck-insert-table-dropdown__label,.ck[dir=rtl] .ck-insert-table-dropdown__label{text-align:center}.ck .ck-insert-table-dropdown-grid-box{border:1px solid var(--ck-color-base-border);border-radius:1px;margin:var(--ck-insert-table-dropdown-box-margin);min-height:var(--ck-insert-table-dropdown-box-height);min-width:var(--ck-insert-table-dropdown-box-width);outline:none;transition:none}.ck .ck-insert-table-dropdown-grid-box:focus{box-shadow:none}.ck .ck-insert-table-dropdown-grid-box.ck-on{background:var(--ck-color-focus-outer-shadow);border-color:var(--ck-color-focus-border)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/inserttable.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/inserttable.css\"],\"names\":[],\"mappings\":\"AAKA,oCACC,YAAa,CACb,kBAAmB,CACnB,cACD,CCJA,MACC,uCAAwC,CACxC,0CAA2C,CAC3C,yCAA0C,CAC1C,yCACD,CAEA,oCAGC,yFAA0F,CAD1F,oJAED,CAEA,mFAEC,iBACD,CAEA,uCAIC,4CAA6C,CAC7C,iBAAkB,CAFlB,iDAAkD,CADlD,qDAAsD,CADtD,mDAAoD,CAKpD,YAAa,CACb,eAUD,CARC,6CACC,eACD,CAEA,6CAEC,6CAA8C,CAD9C,yCAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-insert-table-dropdown__grid {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: wrap;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-insert-table-dropdown-padding: 10px;\\n\\t--ck-insert-table-dropdown-box-height: 11px;\\n\\t--ck-insert-table-dropdown-box-width: 12px;\\n\\t--ck-insert-table-dropdown-box-margin: 1px;\\n}\\n\\n.ck .ck-insert-table-dropdown__grid {\\n\\t/* The width of a container should match 10 items in a row so there will be a 10x10 grid. */\\n\\twidth: calc(var(--ck-insert-table-dropdown-box-width) * 10 + var(--ck-insert-table-dropdown-box-margin) * 20 + var(--ck-insert-table-dropdown-padding) * 2);\\n\\tpadding: var(--ck-insert-table-dropdown-padding) var(--ck-insert-table-dropdown-padding) 0;\\n}\\n\\n.ck .ck-insert-table-dropdown__label,\\n.ck[dir=rtl] .ck-insert-table-dropdown__label {\\n\\ttext-align: center;\\n}\\n\\n.ck .ck-insert-table-dropdown-grid-box {\\n\\tmin-width: var(--ck-insert-table-dropdown-box-width);\\n\\tmin-height: var(--ck-insert-table-dropdown-box-height);\\n\\tmargin: var(--ck-insert-table-dropdown-box-margin);\\n\\tborder: 1px solid var(--ck-color-base-border);\\n\\tborder-radius: 1px;\\n\\toutline: none;\\n\\ttransition: none;\\n\\n\\t&:focus {\\n\\t\\tbox-shadow: none;\\n\\t}\\n\\n\\t&.ck-on {\\n\\t\\tborder-color: var(--ck-color-focus-border);\\n\\t\\tbackground: var(--ck-color-focus-outer-shadow);\\n\\t}\\n}\\n\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .table{display:table;margin:.9em auto}.ck-content .table table{border:1px double #b3b3b3;border-collapse:collapse;border-spacing:0;height:100%;width:100%}.ck-content .table table td,.ck-content .table table th{border:1px solid #bfbfbf;min-width:2em;padding:.4em}.ck-content .table table th{background:rgba(0,0,0,.05);font-weight:700}.ck-content[dir=rtl] .table th{text-align:right}.ck-content[dir=ltr] .table th{text-align:left}.ck-editor__editable .ck-table-bogus-paragraph{display:inline-block;width:100%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/table.css\"],\"names\":[],\"mappings\":\"AAKA,mBAKC,aAAc,CADd,gBAiCD,CA9BC,yBAYC,yBAAkC,CAVlC,wBAAyB,CACzB,gBAAiB,CAKjB,WAAY,CADZ,UAsBD,CAfC,wDAQC,wBAAiC,CANjC,aAAc,CACd,YAMD,CAEA,4BAEC,0BAA+B,CAD/B,eAED,CAMF,+BACC,gBACD,CAEA,+BACC,eACD,CAEA,+CAKC,oBAAqB,CAMrB,UACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content .table {\\n\\t/* Give the table widget some air and center it horizontally */\\n\\t/* The first value should be equal to --ck-spacing-large variable if used in the editor context\\n\\tto avoid the content jumping (See https://github.com/ckeditor/ckeditor5/issues/9825). */\\n\\tmargin: 0.9em auto;\\n\\tdisplay: table;\\n\\n\\t& table {\\n\\t\\t/* The table cells should have slight borders */\\n\\t\\tborder-collapse: collapse;\\n\\t\\tborder-spacing: 0;\\n\\n\\t\\t/* Table width and height are set on the parent <figure>. Make sure the table inside stretches\\n\\t\\tto the full dimensions of the container (https://github.com/ckeditor/ckeditor5/issues/6186). */\\n\\t\\twidth: 100%;\\n\\t\\theight: 100%;\\n\\n\\t\\t/* The outer border of the table should be slightly darker than the inner lines.\\n\\t\\tAlso see https://github.com/ckeditor/ckeditor5-table/issues/50. */\\n\\t\\tborder: 1px double hsl(0, 0%, 70%);\\n\\n\\t\\t& td,\\n\\t\\t& th {\\n\\t\\t\\tmin-width: 2em;\\n\\t\\t\\tpadding: .4em;\\n\\n\\t\\t\\t/* The border is inherited from .ck-editor__nested-editable styles, so theoretically it's not necessary here.\\n\\t\\t\\tHowever, the border is a content style, so it should use .ck-content (so it works outside the editor).\\n\\t\\t\\tHence, the duplication. See https://github.com/ckeditor/ckeditor5/issues/6314 */\\n\\t\\t\\tborder: 1px solid hsl(0, 0%, 75%);\\n\\t\\t}\\n\\n\\t\\t& th {\\n\\t\\t\\tfont-weight: bold;\\n\\t\\t\\tbackground: hsla(0, 0%, 0%, 5%);\\n\\t\\t}\\n\\t}\\n}\\n\\n/* Text alignment of the table header should match the editor settings and override the native browser styling,\\nwhen content is available outside the editor. See https://github.com/ckeditor/ckeditor5/issues/6638 */\\n.ck-content[dir=\\\"rtl\\\"] .table th {\\n\\ttext-align: right;\\n}\\n\\n.ck-content[dir=\\\"ltr\\\"] .table th {\\n\\ttext-align: left;\\n}\\n\\n.ck-editor__editable .ck-table-bogus-paragraph {\\n\\t/*\\n\\t * Use display:inline-block to force Chrome/Safari to limit text mutations to this element.\\n\\t * See https://github.com/ckeditor/ckeditor5/issues/6062.\\n\\t */\\n\\tdisplay: inline-block;\\n\\n\\t/*\\n\\t * Inline HTML elements nested in the span should always be dimensioned in relation to the whole cell width.\\n\\t * See https://github.com/ckeditor/ckeditor5/issues/9117.\\n\\t */\\n\\twidth: 100%;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-table-caption-background:#f7f7f7;--ck-color-table-caption-text:#333;--ck-color-table-caption-highlighted-background:#fd0}.ck-content .table>figcaption{background-color:var(--ck-color-table-caption-background);caption-side:top;color:var(--ck-color-table-caption-text);display:table-caption;font-size:.75em;outline-offset:-1px;padding:.6em;text-align:center;word-break:break-word}.ck.ck-editor__editable .table>figcaption.table__caption_highlighted{animation:ck-table-caption-highlight .6s ease-out}.ck.ck-editor__editable .table>figcaption.ck-placeholder:before{overflow:hidden;padding-left:inherit;padding-right:inherit;text-overflow:ellipsis;white-space:nowrap}@keyframes ck-table-caption-highlight{0%{background-color:var(--ck-color-table-caption-highlighted-background)}to{background-color:var(--ck-color-table-caption-background)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tablecaption.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,2CAAoD,CACpD,kCAA8C,CAC9C,oDACD,CAGA,8BAMC,yDAA0D,CAJ1D,gBAAiB,CAGjB,wCAAyC,CAJzC,qBAAsB,CAOtB,eAAgB,CAChB,mBAAoB,CAFpB,YAAa,CAHb,iBAAkB,CADlB,qBAOD,CAIC,qEACC,iDACD,CAEA,gEASC,eAAgB,CARhB,oBAAqB,CACrB,qBAAsB,CAQtB,sBAAuB,CAFvB,kBAGD,CAGD,sCACC,GACC,qEACD,CAEA,GACC,yDACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-table-caption-background: hsl(0, 0%, 97%);\\n\\t--ck-color-table-caption-text: hsl(0, 0%, 20%);\\n\\t--ck-color-table-caption-highlighted-background: hsl(52deg 100% 50%);\\n}\\n\\n/* Content styles */\\n.ck-content .table > figcaption {\\n\\tdisplay: table-caption;\\n\\tcaption-side: top;\\n\\tword-break: break-word;\\n\\ttext-align: center;\\n\\tcolor: var(--ck-color-table-caption-text);\\n\\tbackground-color: var(--ck-color-table-caption-background);\\n\\tpadding: .6em;\\n\\tfont-size: .75em;\\n\\toutline-offset: -1px;\\n}\\n\\n/* Editing styles */\\n.ck.ck-editor__editable .table > figcaption {\\n\\t&.table__caption_highlighted {\\n\\t\\tanimation: ck-table-caption-highlight .6s ease-out;\\n\\t}\\n\\n\\t&.ck-placeholder::before {\\n\\t\\tpadding-left: inherit;\\n\\t\\tpadding-right: inherit;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the table caption placeholder doesn't overflow the placeholder area.\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/9162.\\n\\t\\t */\\n\\t\\twhite-space: nowrap;\\n\\t\\toverflow: hidden;\\n\\t\\ttext-overflow: ellipsis;\\n\\t}\\n}\\n\\n@keyframes ck-table-caption-highlight {\\n\\t0% {\\n\\t\\tbackground-color: var(--ck-color-table-caption-highlighted-background);\\n\\t}\\n\\n\\t100% {\\n\\t\\tbackground-color: var(--ck-color-table-caption-background);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row{flex-wrap:wrap}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar:first-of-type{flex-grow:0.57}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar:last-of-type{flex-grow:0.43}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar .ck-button{flex-grow:1}.ck.ck-table-cell-properties-form{width:320px}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__padding-row{align-self:flex-end;padding:0;width:25%}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar{background:none;margin-top:var(--ck-spacing-standard)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tablecellproperties.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tablecellproperties.css\"],\"names\":[],\"mappings\":\"AAOE,6FACC,cAiBD,CAdE,0HAEC,cACD,CAEA,yHAEC,cACD,CAEA,uHACC,WACD,CClBJ,kCACC,WAkBD,CAfE,2FACC,mBAAoB,CACpB,SAAU,CACV,SACD,CAGC,4GACC,eAAgB,CAGhB,qCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-cell-properties-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-cell-properties-form__alignment-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\n\\t\\t\\t& .ck.ck-toolbar {\\n\\t\\t\\t\\t&:first-of-type {\\n\\t\\t\\t\\t\\t/* 4 buttons out of 7 (h-alignment + v-alignment) = 0.57 */\\n\\t\\t\\t\\t\\tflex-grow: 0.57;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t&:last-of-type {\\n\\t\\t\\t\\t\\t/* 3 buttons out of 7 (h-alignment + v-alignment) = 0.43 */\\n\\t\\t\\t\\t\\tflex-grow: 0.43;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t& .ck-button {\\n\\t\\t\\t\\t\\tflex-grow: 1;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-cell-properties-form {\\n\\twidth: 320px;\\n\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-cell-properties-form__padding-row {\\n\\t\\t\\talign-self: flex-end;\\n\\t\\t\\tpadding: 0;\\n\\t\\t\\twidth: 25%;\\n\\t\\t}\\n\\n\\t\\t&.ck-table-cell-properties-form__alignment-row {\\n\\t\\t\\t& .ck.ck-toolbar {\\n\\t\\t\\t\\tbackground: none;\\n\\n\\t\\t\\t\\t/* Compensate for missing input label that would push the margin (toolbar has no inputs). */\\n\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-table-focused-cell-background:rgba(158,201,250,.3)}.ck-widget.table td.ck-editor__nested-editable.ck-editor__nested-editable_focused,.ck-widget.table td.ck-editor__nested-editable:focus,.ck-widget.table th.ck-editor__nested-editable.ck-editor__nested-editable_focused,.ck-widget.table th.ck-editor__nested-editable:focus{background:var(--ck-color-table-focused-cell-background);border-style:none;outline:1px solid var(--ck-color-focus-border);outline-offset:-1px}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tableediting.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,6DACD,CAKE,8QAGC,wDAAyD,CAKzD,iBAAkB,CAClB,8CAA+C,CAC/C,mBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-table-focused-cell-background: hsla(212, 90%, 80%, .3);\\n}\\n\\n.ck-widget.table {\\n\\t& td,\\n\\t& th {\\n\\t\\t&.ck-editor__nested-editable.ck-editor__nested-editable_focused,\\n\\t\\t&.ck-editor__nested-editable:focus {\\n\\t\\t\\t/* A very slight background to highlight the focused cell */\\n\\t\\t\\tbackground: var(--ck-color-table-focused-cell-background);\\n\\n\\t\\t\\t/* Fixes the problem where surrounding cells cover the focused cell's border.\\n\\t\\t\\tIt does not fix the problem in all places but the UX is improved.\\n\\t\\t\\tSee https://github.com/ckeditor/ckeditor5-table/issues/29. */\\n\\t\\t\\tborder-style: none;\\n\\t\\t\\toutline: 1px solid var(--ck-color-focus-border);\\n\\t\\t\\toutline-offset: -1px; /* progressive enhancement - no IE support */\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-table-form .ck-form__row.ck-table-form__background-row,.ck.ck-table-form .ck-form__row.ck-table-form__border-row{flex-wrap:wrap}.ck.ck-table-form .ck-form__row.ck-table-form__dimensions-row{align-items:center;flex-wrap:wrap}.ck.ck-table-form .ck-form__row.ck-table-form__dimensions-row .ck-labeled-field-view{align-items:center;display:flex;flex-direction:column-reverse}.ck.ck-table-form .ck-form__row.ck-table-form__dimensions-row .ck-labeled-field-view .ck.ck-dropdown,.ck.ck-table-form .ck-form__row.ck-table-form__dimensions-row 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.ck.ck-labeled-field-view__status{background:var(--ck-color-base-error);color:var(--ck-color-base-background);min-width:var(--ck-table-properties-min-error-width);padding:var(--ck-spacing-small) var(--ck-spacing-medium);text-align:center}.ck.ck-table-form .ck.ck-labeled-field-view .ck.ck-labeled-field-view__status:after{border-color:transparent transparent var(--ck-color-base-error) transparent;border-style:solid;border-width:0 var(--ck-table-properties-error-arrow-size) var(--ck-table-properties-error-arrow-size) var(--ck-table-properties-error-arrow-size)}.ck.ck-table-form .ck.ck-labeled-field-view .ck.ck-labeled-field-view__status{animation:ck-table-form-labeled-view-status-appear .15s ease both}.ck.ck-table-form .ck.ck-labeled-field-view .ck-input.ck-error:not(:focus)+.ck.ck-labeled-field-view__status{display:none}@keyframes ck-table-form-labeled-view-status-appear{0%{opacity:0}to{opacity:1}}\", 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2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-form__border-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t}\\n\\n\\t\\t&.ck-table-form__background-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t}\\n\\n\\t\\t&.ck-table-form__dimensions-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t\\talign-items: center;\\n\\n\\t\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\t\\tdisplay: flex;\\n\\t\\t\\t\\tflex-direction: column-reverse;\\n\\t\\t\\t\\talign-items: center;\\n\\n\\t\\t\\t\\t& .ck.ck-dropdown {\\n\\t\\t\\t\\t\\tflex-grow: 0;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-table-form__dimension-operator {\\n\\t\\t\\t\\tflex-grow: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-labeled-field-view {\\n\\t\\t/* Allow absolute positioning of the status (error) balloons. */\\n\\t\\tposition: relative;\\n\\n\\t\\t& .ck.ck-labeled-field-view__status {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tbottom: calc( -1 * var(--ck-table-properties-error-arrow-size) );\\n\\t\\t\\ttransform: translate(-50%,100%);\\n\\n\\t\\t\\t/* Make sure the balloon status stays on top of other form elements. */\\n\\t\\t\\tz-index: 1;\\n\\n\\t\\t\\t/* The arrow pointing towards the field. */\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\ttop: calc( -1 * var(--ck-table-properties-error-arrow-size) );\\n\\t\\t\\t\\tleft: 50%;\\n\\t\\t\\t\\ttransform: translateX( -50% );\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-table-properties-error-arrow-size: 6px;\\n\\t--ck-table-properties-min-error-width: 150px;\\n}\\n\\n.ck.ck-table-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-form__border-row {\\n\\t\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\t\\t& > .ck-label {\\n\\t\\t\\t\\t\\tfont-size: var(--ck-font-size-tiny);\\n\\t\\t\\t\\t\\ttext-align: center;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-table-form__border-style,\\n\\t\\t\\t& .ck-table-form__border-width {\\n\\t\\t\\t\\twidth: 80px;\\n\\t\\t\\t\\tmin-width: 80px;\\n\\t\\t\\t\\tmax-width: 80px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&.ck-table-form__dimensions-row {\\n\\t\\t\\tpadding: 0;\\n\\n\\t\\t\\t& .ck-table-form__dimensions-row__width,\\n\\t\\t\\t& .ck-table-form__dimensions-row__height {\\n\\t\\t\\t\\tmargin: 0\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-table-form__dimension-operator {\\n\\t\\t\\t\\talign-self: flex-end;\\n\\t\\t\\t\\tdisplay: inline-block;\\n\\t\\t\\t\\theight: var(--ck-ui-component-min-height);\\n\\t\\t\\t\\tline-height: var(--ck-ui-component-min-height);\\n\\t\\t\\t\\tmargin: 0 var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-labeled-field-view {\\n\\t\\tpadding-top: var(--ck-spacing-standard);\\n\\n\\t\\t& .ck.ck-labeled-field-view__status {\\n\\t\\t\\t@mixin ck-rounded-corners;\\n\\n\\t\\t\\tbackground: var(--ck-color-base-error);\\n\\t\\t\\tcolor: var(--ck-color-base-background);\\n\\t\\t\\tpadding: var(--ck-spacing-small) var(--ck-spacing-medium);\\n\\t\\t\\tmin-width: var(--ck-table-properties-min-error-width);\\n\\t\\t\\ttext-align: center;\\n\\n\\t\\t\\t/* The arrow pointing towards the field. */\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tborder-color: transparent transparent var(--ck-color-base-error) transparent;\\n\\t\\t\\t\\tborder-width: 0 var(--ck-table-properties-error-arrow-size) var(--ck-table-properties-error-arrow-size) var(--ck-table-properties-error-arrow-size);\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\n\\t\\t\\tanimation: ck-table-form-labeled-view-status-appear .15s ease both;\\n\\t\\t}\\n\\n\\t\\t/* Hide the error balloon when the field is blurred. Makes the experience much more clear. */\\n\\t\\t& .ck-input.ck-error:not(:focus) + .ck.ck-labeled-field-view__status {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n}\\n\\n@keyframes ck-table-form-labeled-view-status-appear {\\n\\t0% {\\n\\t\\topacity: 0;\\n\\t}\\n\\n\\t100% {\\n\\t\\topacity: 1;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row{align-content:baseline;flex-basis:0;flex-wrap:wrap}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row .ck.ck-toolbar .ck-toolbar__items{flex-wrap:nowrap}.ck.ck-table-properties-form{width:320px}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row{align-self:flex-end;padding:0}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row .ck.ck-toolbar{background:none;margin-top:var(--ck-spacing-standard)}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row .ck.ck-toolbar .ck-toolbar__items>*{width:40px}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tableproperties.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tableproperties.css\"],\"names\":[],\"mappings\":\"AAOE,mFAGC,sBAAuB,CADvB,YAAa,CADb,cAOD,CAHC,qHACC,gBACD,CCTH,6BACC,WAmBD,CAhBE,mFACC,mBAAoB,CACpB,SAYD,CAVC,kGACC,eAAgB,CAGhB,qCAKD,CAHC,uHACC,UACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-properties-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-properties-form__alignment-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t\\tflex-basis: 0;\\n\\t\\t\\talign-content: baseline;\\n\\n\\t\\t\\t& .ck.ck-toolbar .ck-toolbar__items {\\n\\t\\t\\t\\tflex-wrap: nowrap;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-properties-form {\\n\\twidth: 320px;\\n\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-properties-form__alignment-row {\\n\\t\\t\\talign-self: flex-end;\\n\\t\\t\\tpadding: 0;\\n\\n\\t\\t\\t& .ck.ck-toolbar {\\n\\t\\t\\t\\tbackground: none;\\n\\n\\t\\t\\t\\t/* Compensate for missing input label that would push the margin (toolbar has no inputs). */\\n\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\n\\t\\t\\t\\t& .ck-toolbar__items > * {\\n\\t\\t\\t\\t\\twidth: 40px;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-table-selected-cell-background:rgba(158,207,250,.3)}.ck.ck-editor__editable .table table td.ck-editor__editable_selected,.ck.ck-editor__editable .table table th.ck-editor__editable_selected{box-shadow:unset;caret-color:transparent;outline:unset;position:relative}.ck.ck-editor__editable .table table td.ck-editor__editable_selected:after,.ck.ck-editor__editable .table table th.ck-editor__editable_selected:after{background-color:var(--ck-table-selected-cell-background);bottom:0;content:\\\"\\\";left:0;pointer-events:none;position:absolute;right:0;top:0}.ck.ck-editor__editable .table table td.ck-editor__editable_selected ::selection,.ck.ck-editor__editable .table table td.ck-editor__editable_selected:focus,.ck.ck-editor__editable .table table th.ck-editor__editable_selected ::selection,.ck.ck-editor__editable .table table th.ck-editor__editable_selected:focus{background-color:transparent}.ck.ck-editor__editable .table table td.ck-editor__editable_selected .ck-widget,.ck.ck-editor__editable .table table th.ck-editor__editable_selected .ck-widget{outline:unset}.ck.ck-editor__editable .table table td.ck-editor__editable_selected .ck-widget>.ck-widget__selection-handle,.ck.ck-editor__editable .table table th.ck-editor__editable_selected .ck-widget>.ck-widget__selection-handle{display:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tableselection.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,wDACD,CAGC,0IAKC,gBAAiB,CAFjB,uBAAwB,CACxB,aAAc,CAFd,iBAiCD,CA3BC,sJAGC,yDAA0D,CAK1D,QAAS,CAPT,UAAW,CAKX,MAAO,CAJP,mBAAoB,CAEpB,iBAAkB,CAGlB,OAAQ,CAFR,KAID,CAEA,wTAEC,4BACD,CAMA,gKACC,aAKD,CAHC,0NACC,YACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-table-selected-cell-background: hsla(208, 90%, 80%, .3);\\n}\\n\\n.ck.ck-editor__editable .table table {\\n\\t& td.ck-editor__editable_selected,\\n\\t& th.ck-editor__editable_selected {\\n\\t\\tposition: relative;\\n\\t\\tcaret-color: transparent;\\n\\t\\toutline: unset;\\n\\t\\tbox-shadow: unset;\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5/issues/6446 */\\n\\t\\t&:after {\\n\\t\\t\\tcontent: '';\\n\\t\\t\\tpointer-events: none;\\n\\t\\t\\tbackground-color: var(--ck-table-selected-cell-background);\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\ttop: 0;\\n\\t\\t\\tleft: 0;\\n\\t\\t\\tright: 0;\\n\\t\\t\\tbottom: 0;\\n\\t\\t}\\n\\n\\t\\t& ::selection,\\n\\t\\t&:focus {\\n\\t\\t\\tbackground-color: transparent;\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * To reduce the amount of noise, all widgets in the table selection have no outline and no selection handle.\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/9491.\\n\\t\\t */\\n\\t\\t& .ck-widget {\\n\\t\\t\\toutline: unset;\\n\\n\\t\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\t\\tdisplay: none;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-button,a.ck.ck-button{align-items:center;display:inline-flex;justify-content:left;position:relative;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-button .ck-button__label,a.ck.ck-button .ck-button__label{display:none}.ck.ck-button.ck-button_with-text .ck-button__label,a.ck.ck-button.ck-button_with-text .ck-button__label{display:inline-block}.ck.ck-button:not(.ck-button_with-text),a.ck.ck-button:not(.ck-button_with-text){justify-content:center}.ck.ck-button,a.ck.ck-button{background:var(--ck-color-button-default-background)}.ck.ck-button:not(.ck-disabled):hover,a.ck.ck-button:not(.ck-disabled):hover{background:var(--ck-color-button-default-hover-background)}.ck.ck-button:not(.ck-disabled):active,a.ck.ck-button:not(.ck-disabled):active{background:var(--ck-color-button-default-active-background)}.ck.ck-button.ck-disabled,a.ck.ck-button.ck-disabled{background:var(--ck-color-button-default-disabled-background)}.ck.ck-button,a.ck.ck-button{border-radius:0}.ck-rounded-corners .ck.ck-button,.ck-rounded-corners a.ck.ck-button,.ck.ck-button.ck-rounded-corners,a.ck.ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-button,a.ck.ck-button{-webkit-appearance:none;border:1px solid transparent;cursor:default;font-size:inherit;line-height:1;min-height:var(--ck-ui-component-min-height);min-width:var(--ck-ui-component-min-height);padding:var(--ck-spacing-tiny);text-align:center;transition:box-shadow .2s ease-in-out,border .2s ease-in-out;vertical-align:middle;white-space:nowrap}.ck.ck-button:active,.ck.ck-button:focus,a.ck.ck-button:active,a.ck.ck-button:focus{border:var(--ck-focus-ring);box-shadow:var(--ck-focus-outer-shadow),0 0;outline:none}.ck.ck-button .ck-button__icon use,.ck.ck-button .ck-button__icon use *,a.ck.ck-button .ck-button__icon use,a.ck.ck-button .ck-button__icon use *{color:inherit}.ck.ck-button .ck-button__label,a.ck.ck-button .ck-button__label{color:inherit;cursor:inherit;font-size:inherit;font-weight:inherit;vertical-align:middle}[dir=ltr] .ck.ck-button .ck-button__label,[dir=ltr] a.ck.ck-button .ck-button__label{text-align:left}[dir=rtl] .ck.ck-button .ck-button__label,[dir=rtl] a.ck.ck-button .ck-button__label{text-align:right}.ck.ck-button .ck-button__keystroke,a.ck.ck-button .ck-button__keystroke{color:inherit}[dir=ltr] .ck.ck-button .ck-button__keystroke,[dir=ltr] a.ck.ck-button .ck-button__keystroke{margin-left:var(--ck-spacing-large)}[dir=rtl] .ck.ck-button .ck-button__keystroke,[dir=rtl] a.ck.ck-button .ck-button__keystroke{margin-right:var(--ck-spacing-large)}.ck.ck-button .ck-button__keystroke,a.ck.ck-button .ck-button__keystroke{font-weight:700;opacity:.7}.ck.ck-button.ck-disabled:active,.ck.ck-button.ck-disabled:focus,a.ck.ck-button.ck-disabled:active,a.ck.ck-button.ck-disabled:focus{box-shadow:var(--ck-focus-disabled-outer-shadow),0 0}.ck.ck-button.ck-disabled .ck-button__icon,.ck.ck-button.ck-disabled .ck-button__label,a.ck.ck-button.ck-disabled .ck-button__icon,a.ck.ck-button.ck-disabled .ck-button__label{opacity:var(--ck-disabled-opacity)}.ck.ck-button.ck-disabled .ck-button__keystroke,a.ck.ck-button.ck-disabled .ck-button__keystroke{opacity:.3}.ck.ck-button.ck-button_with-text,a.ck.ck-button.ck-button_with-text{padding:var(--ck-spacing-tiny) var(--ck-spacing-standard)}[dir=ltr] .ck.ck-button.ck-button_with-text .ck-button__icon,[dir=ltr] a.ck.ck-button.ck-button_with-text .ck-button__icon{margin-left:calc(var(--ck-spacing-small)*-1);margin-right:var(--ck-spacing-small)}[dir=rtl] .ck.ck-button.ck-button_with-text .ck-button__icon,[dir=rtl] a.ck.ck-button.ck-button_with-text .ck-button__icon{margin-left:var(--ck-spacing-small);margin-right:calc(var(--ck-spacing-small)*-1)}.ck.ck-button.ck-button_with-keystroke .ck-button__label,a.ck.ck-button.ck-button_with-keystroke .ck-button__label{flex-grow:1}.ck.ck-button.ck-on,a.ck.ck-button.ck-on{background:var(--ck-color-button-on-background)}.ck.ck-button.ck-on:not(.ck-disabled):hover,a.ck.ck-button.ck-on:not(.ck-disabled):hover{background:var(--ck-color-button-on-hover-background)}.ck.ck-button.ck-on:not(.ck-disabled):active,a.ck.ck-button.ck-on:not(.ck-disabled):active{background:var(--ck-color-button-on-active-background)}.ck.ck-button.ck-on.ck-disabled,a.ck.ck-button.ck-on.ck-disabled{background:var(--ck-color-button-on-disabled-background)}.ck.ck-button.ck-on,a.ck.ck-button.ck-on{color:var(--ck-color-button-on-color)}.ck.ck-button.ck-button-save,a.ck.ck-button.ck-button-save{color:var(--ck-color-button-save)}.ck.ck-button.ck-button-cancel,a.ck.ck-button.ck-button-cancel{color:var(--ck-color-button-cancel)}.ck.ck-button-action,a.ck.ck-button-action{background:var(--ck-color-button-action-background)}.ck.ck-button-action:not(.ck-disabled):hover,a.ck.ck-button-action:not(.ck-disabled):hover{background:var(--ck-color-button-action-hover-background)}.ck.ck-button-action:not(.ck-disabled):active,a.ck.ck-button-action:not(.ck-disabled):active{background:var(--ck-color-button-action-active-background)}.ck.ck-button-action.ck-disabled,a.ck.ck-button-action.ck-disabled{background:var(--ck-color-button-action-disabled-background)}.ck.ck-button-action,a.ck.ck-button-action{color:var(--ck-color-button-action-text)}.ck.ck-button-bold,a.ck.ck-button-bold{font-weight:700}\", 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* Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../mixins/_unselectable.css\\\";\\n\\n.ck.ck-button,\\na.ck.ck-button {\\n\\t@mixin ck-unselectable;\\n\\n\\tposition: relative;\\n\\tdisplay: inline-flex;\\n\\talign-items: center;\\n\\tjustify-content: left;\\n\\n\\t& .ck-button__label {\\n\\t\\tdisplay: none;\\n\\t}\\n\\n\\t&.ck-button_with-text {\\n\\t\\t& .ck-button__label {\\n\\t\\t\\tdisplay: inline-block;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Center the icon horizontally in a button without text. */\\n\\t&:not(.ck-button_with-text)  {\\n\\t\\tjustify-content: center;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Makes element unselectable.\\n */\\n@define-mixin ck-unselectable {\\n\\t-moz-user-select: none;\\n\\t-webkit-user-select: none;\\n\\t-ms-user-select: none;\\n\\tuser-select: none\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_focus.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../mixins/_button.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-button,\\na.ck.ck-button {\\n\\t@mixin ck-button-colors --ck-color-button-default;\\n\\t@mixin ck-rounded-corners;\\n\\n\\twhite-space: nowrap;\\n\\tcursor: default;\\n\\tvertical-align: middle;\\n\\tpadding: var(--ck-spacing-tiny);\\n\\ttext-align: center;\\n\\n\\t/* A very important piece of styling. Go to variable declaration to learn more. */\\n\\tmin-width: var(--ck-ui-component-min-height);\\n\\tmin-height: var(--ck-ui-component-min-height);\\n\\n\\t/* Normalize the height of the line. Removing this will break consistent height\\n\\tamong text and text-less buttons (with icons). */\\n\\tline-height: 1;\\n\\n\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\tfont-size: inherit;\\n\\n\\t/* Avoid flickering when the foucs border shows up. */\\n\\tborder: 1px solid transparent;\\n\\n\\t/* Apply some smooth transition to the box-shadow and border. */\\n\\ttransition: box-shadow .2s ease-in-out, border .2s ease-in-out;\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/189 */\\n\\t-webkit-appearance: none;\\n\\n\\t&:active,\\n\\t&:focus {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\\n\\t}\\n\\n\\t/* Allow icon coloring using the text \\\"color\\\" property. */\\n\\t& .ck-button__icon {\\n\\t\\t& use,\\n\\t\\t& use * {\\n\\t\\t\\tcolor: inherit;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-button__label {\\n\\t\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\t\\tfont-size: inherit;\\n\\t\\tfont-weight: inherit;\\n\\t\\tcolor: inherit;\\n\\t\\tcursor: inherit;\\n\\n\\t\\t/* Must be consistent with .ck-icon's vertical align. Otherwise, buttons with and\\n\\t\\twithout labels (but with icons) have different sizes in Chrome */\\n\\t\\tvertical-align: middle;\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\ttext-align: left;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\ttext-align: right;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-button__keystroke {\\n\\t\\tcolor: inherit;\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tmargin-left: var(--ck-spacing-large);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tmargin-right: var(--ck-spacing-large);\\n\\t\\t}\\n\\n\\t\\tfont-weight: bold;\\n\\t\\topacity: .7;\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/70 */\\n\\t&.ck-disabled {\\n\\t\\t&:active,\\n\\t\\t&:focus {\\n\\t\\t\\t/* The disabled button should have a slightly less visible shadow when focused. */\\n\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-disabled-outer-shadow);\\n\\t\\t}\\n\\n\\t\\t& .ck-button__icon {\\n\\t\\t\\t@mixin ck-disabled;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/98 */\\n\\t\\t& .ck-button__label {\\n\\t\\t\\t@mixin ck-disabled;\\n\\t\\t}\\n\\n\\t\\t& .ck-button__keystroke {\\n\\t\\t\\topacity: .3;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-button_with-text {\\n\\t\\tpadding: var(--ck-spacing-tiny) var(--ck-spacing-standard);\\n\\n\\t\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t\\t& .ck-button__icon {\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: calc(-1 * var(--ck-spacing-small));\\n\\t\\t\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-right: calc(-1 * var(--ck-spacing-small));\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-button_with-keystroke {\\n\\t\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t\\t& .ck-button__label {\\n\\t\\t\\tflex-grow: 1;\\n\\t\\t}\\n\\t}\\n\\n\\t/* A style of the button which is currently on, e.g. its feature is active. */\\n\\t&.ck-on {\\n\\t\\t@mixin ck-button-colors --ck-color-button-on;\\n\\n\\t\\tcolor: var(--ck-color-button-on-color);\\n\\t}\\n\\n\\t&.ck-button-save {\\n\\t\\tcolor: var(--ck-color-button-save);\\n\\t}\\n\\n\\t&.ck-button-cancel {\\n\\t\\tcolor: var(--ck-color-button-cancel);\\n\\t}\\n}\\n\\n/* A style of the button which handles the primary action. */\\n.ck.ck-button-action,\\na.ck.ck-button-action {\\n\\t@mixin ck-button-colors --ck-color-button-action;\\n\\n\\tcolor: var(--ck-color-button-action-text);\\n}\\n\\n.ck.ck-button-bold,\\na.ck.ck-button-bold {\\n\\tfont-weight: bold;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements a button of given background color.\\n *\\n * @param {String} $background - Background color of the button.\\n * @param {String} $border - Border color of the button.\\n */\\n@define-mixin ck-button-colors $prefix {\\n\\tbackground: var($(prefix)-background);\\n\\n\\t&:not(.ck-disabled) {\\n\\t\\t&:hover {\\n\\t\\t\\tbackground: var($(prefix)-hover-background);\\n\\t\\t}\\n\\n\\t\\t&:active {\\n\\t\\t\\tbackground: var($(prefix)-active-background);\\n\\t\\t}\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/98 */\\n\\t&.ck-disabled {\\n\\t\\tbackground: var($(prefix)-disabled-background);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class which indicates that an element holding it is disabled.\\n */\\n@define-mixin ck-disabled {\\n\\topacity: var(--ck-disabled-opacity);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-button.ck-switchbutton .ck-button__toggle,.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner{display:block}:root{--ck-switch-button-toggle-width:2.6153846154em;--ck-switch-button-toggle-inner-size:calc(1.07692em + 1px);--ck-switch-button-translation:calc(var(--ck-switch-button-toggle-width) - var(--ck-switch-button-toggle-inner-size) - 2px);--ck-switch-button-inner-hover-shadow:0 0 0 5px var(--ck-color-switch-button-inner-shadow)}.ck.ck-button.ck-switchbutton,.ck.ck-button.ck-switchbutton.ck-on:active,.ck.ck-button.ck-switchbutton.ck-on:focus,.ck.ck-button.ck-switchbutton.ck-on:hover,.ck.ck-button.ck-switchbutton:active,.ck.ck-button.ck-switchbutton:focus,.ck.ck-button.ck-switchbutton:hover{background:transparent;color:inherit}[dir=ltr] .ck.ck-button.ck-switchbutton .ck-button__label{margin-right:calc(var(--ck-spacing-large)*2)}[dir=rtl] .ck.ck-button.ck-switchbutton .ck-button__label{margin-left:calc(var(--ck-spacing-large)*2)}.ck.ck-button.ck-switchbutton .ck-button__toggle{border-radius:0}.ck-rounded-corners .ck.ck-button.ck-switchbutton .ck-button__toggle,.ck.ck-button.ck-switchbutton .ck-button__toggle.ck-rounded-corners{border-radius:var(--ck-border-radius)}[dir=ltr] .ck.ck-button.ck-switchbutton .ck-button__toggle{margin-left:auto}[dir=rtl] .ck.ck-button.ck-switchbutton .ck-button__toggle{margin-right:auto}.ck.ck-button.ck-switchbutton .ck-button__toggle{background:var(--ck-color-switch-button-off-background);border:1px solid transparent;transition:background .4s ease,box-shadow .2s ease-in-out,outline .2s ease-in-out;width:var(--ck-switch-button-toggle-width)}.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner{border-radius:0}.ck-rounded-corners .ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner,.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner.ck-rounded-corners{border-radius:var(--ck-border-radius);border-radius:calc(var(--ck-border-radius)*.5)}.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner{background:var(--ck-color-switch-button-inner-background);height:var(--ck-switch-button-toggle-inner-size);transition:all .3s ease;width:var(--ck-switch-button-toggle-inner-size)}.ck.ck-button.ck-switchbutton .ck-button__toggle:hover{background:var(--ck-color-switch-button-off-hover-background)}.ck.ck-button.ck-switchbutton .ck-button__toggle:hover .ck-button__toggle__inner{box-shadow:var(--ck-switch-button-inner-hover-shadow)}.ck.ck-button.ck-switchbutton.ck-disabled .ck-button__toggle{opacity:var(--ck-disabled-opacity)}.ck.ck-button.ck-switchbutton:focus{border-color:transparent;box-shadow:none;outline:none}.ck.ck-button.ck-switchbutton:focus .ck-button__toggle{box-shadow:0 0 0 1px var(--ck-color-base-background),0 0 0 5px var(--ck-color-focus-outer-shadow);outline:var(--ck-focus-ring);outline-offset:1px}.ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle{background:var(--ck-color-switch-button-on-background)}.ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle:hover{background:var(--ck-color-switch-button-on-hover-background)}[dir=ltr] .ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle .ck-button__toggle__inner{transform:translateX(var( --ck-switch-button-translation ))}[dir=rtl] .ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle .ck-button__toggle__inner{transform:translateX(calc(var( --ck-switch-button-translation )*-1))}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/button/switchbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/button/switchbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_disabled.css\"],\"names\":[],\"mappings\":\"AASE,4HACC,aACD,CCCF,MAEC,8CAA+C,CAE/C,0DAAgE,CAChE,2HAIC,CACD,0FACD,CAOC,0QAEC,sBAAuB,CADvB,aAED,CAEA,0DAGE,4CAOF,CAVA,0DAQE,2CAEF,CAEA,iDCpCA,eD4EA,CAxCA,yIChCC,qCDwED,CAxCA,2DAKE,gBAmCF,CAxCA,2DAUE,iBA8BF,CAxCA,iDAkBC,uDAAwD,CAFxD,4BAA6B,CAD7B,iFAAsF,CAEtF,0CAuBD,CApBC,2ECxDD,eDmEC,CAXA,6LCpDA,qCAAsC,CDsDpC,8CASF,CAXA,2EAOC,yDAA0D,CAD1D,gDAAiD,CAIjD,uBAA0B,CAL1B,+CAMD,CAEA,uDACC,6DAKD,CAHC,iFACC,qDACD,CAIF,6DEhFA,kCFkFA,CAGA,oCACC,wBAAyB,CAEzB,eAAgB,CADhB,YAQD,CALC,uDACC,iGAAmG,CAEnG,4BAA6B,CAD7B,kBAED,CAKA,uDACC,sDAkBD,CAhBC,6DACC,4DACD,CAEA,2FAKE,2DAMF,CAXA,2FASE,oEAEF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-button.ck-switchbutton {\\n\\t& .ck-button__toggle {\\n\\t\\tdisplay: block;\\n\\n\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\tdisplay: block;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n/* Note: To avoid rendering issues (aliasing) but to preserve the responsive nature\\nof the component, floating–point numbers have been used which, for the default font size\\n(see: --ck-font-size-base), will generate simple integers. */\\n:root {\\n\\t/* 34px at 13px font-size */\\n\\t--ck-switch-button-toggle-width: 2.6153846154em;\\n\\t/* 14px at 13px font-size */\\n\\t--ck-switch-button-toggle-inner-size: calc(1.0769230769em + 1px);\\n\\t--ck-switch-button-translation: calc(\\n\\t\\tvar(--ck-switch-button-toggle-width) -\\n\\t\\tvar(--ck-switch-button-toggle-inner-size) -\\n\\t\\t2px /* Border */\\n\\t);\\n\\t--ck-switch-button-inner-hover-shadow: 0 0 0 5px var(--ck-color-switch-button-inner-shadow);\\n}\\n\\n.ck.ck-button.ck-switchbutton {\\n\\t/* Unlike a regular button, the switch button text color and background should never change.\\n\\t * Changing toggle switch (background, outline) is enough to carry the information about the\\n\\t * state of the entire component (https://github.com/ckeditor/ckeditor5/issues/12519)\\n\\t */\\n\\t&, &:hover, &:focus, &:active, &.ck-on:hover, &.ck-on:focus, &.ck-on:active {\\n\\t\\tcolor: inherit;\\n\\t\\tbackground: transparent;\\n\\t}\\n\\n\\t& .ck-button__label {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t/* Separate the label from the switch */\\n\\t\\t\\tmargin-right: calc(2 * var(--ck-spacing-large));\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t/* Separate the label from the switch */\\n\\t\\t\\tmargin-left: calc(2 * var(--ck-spacing-large));\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-button__toggle {\\n\\t\\t@mixin ck-rounded-corners;\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t/* Make sure the toggle is always to the right as far as possible. */\\n\\t\\t\\tmargin-left: auto;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t/* Make sure the toggle is always to the left as far as possible. */\\n\\t\\t\\tmargin-right: auto;\\n\\t\\t}\\n\\n\\t\\t/* Apply some smooth transition to the box-shadow and border. */\\n\\t\\t/* Gently animate the background color of the toggle switch */\\n\\t\\ttransition: background 400ms ease, box-shadow .2s ease-in-out, outline .2s ease-in-out;\\n\\t\\tborder: 1px solid transparent;\\n\\t\\twidth: var(--ck-switch-button-toggle-width);\\n\\t\\tbackground: var(--ck-color-switch-button-off-background);\\n\\n\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t\\tborder-radius: calc(.5 * var(--ck-border-radius));\\n\\t\\t\\t}\\n\\n\\t\\t\\twidth: var(--ck-switch-button-toggle-inner-size);\\n\\t\\t\\theight: var(--ck-switch-button-toggle-inner-size);\\n\\t\\t\\tbackground: var(--ck-color-switch-button-inner-background);\\n\\n\\t\\t\\t/* Gently animate the inner part of the toggle switch */\\n\\t\\t\\ttransition: all 300ms ease;\\n\\t\\t}\\n\\n\\t\\t&:hover {\\n\\t\\t\\tbackground: var(--ck-color-switch-button-off-hover-background);\\n\\n\\t\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\t\\tbox-shadow: var(--ck-switch-button-inner-hover-shadow);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-disabled .ck-button__toggle {\\n\\t\\t@mixin ck-disabled;\\n\\t}\\n\\n\\t/* Overriding default .ck-button:focus styles + an outline around the toogle */\\n\\t&:focus {\\n\\t\\tborder-color: transparent;\\n\\t\\toutline: none;\\n\\t\\tbox-shadow: none;\\n\\n\\t\\t& .ck-button__toggle {\\n\\t\\t\\tbox-shadow: 0 0 0 1px var(--ck-color-base-background), 0 0 0 5px var(--ck-color-focus-outer-shadow);\\n\\t\\t\\toutline-offset: 1px;\\n\\t\\t\\toutline: var(--ck-focus-ring);\\n\\t\\t}\\n\\t}\\n\\n\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t&.ck-on {\\n\\t\\t& .ck-button__toggle {\\n\\t\\t\\tbackground: var(--ck-color-switch-button-on-background);\\n\\n\\t\\t\\t&:hover {\\n\\t\\t\\t\\tbackground: var(--ck-color-switch-button-on-hover-background);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\t\\t/*\\n\\t\\t\\t\\t* Move the toggle switch to the right. It will be animated.\\n\\t\\t\\t\\t*/\\n\\t\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\t\\ttransform: translateX( var( --ck-switch-button-translation ) );\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\t\\ttransform: translateX( calc( -1 * var( --ck-switch-button-translation ) ) );\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class which indicates that an element holding it is disabled.\\n */\\n@define-mixin ck-disabled {\\n\\topacity: var(--ck-disabled-opacity);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-color-grid{display:grid}:root{--ck-color-grid-tile-size:24px;--ck-color-color-grid-check-icon:#166fd4}.ck.ck-color-grid{grid-gap:5px;padding:8px}.ck.ck-color-grid__tile{border:0;height:var(--ck-color-grid-tile-size);min-height:var(--ck-color-grid-tile-size);min-width:var(--ck-color-grid-tile-size);padding:0;transition:box-shadow .2s ease;width:var(--ck-color-grid-tile-size)}.ck.ck-color-grid__tile.ck-disabled{cursor:unset;transition:unset}.ck.ck-color-grid__tile.ck-color-table__color-tile_bordered{box-shadow:0 0 0 1px var(--ck-color-base-border)}.ck.ck-color-grid__tile .ck.ck-icon{color:var(--ck-color-color-grid-check-icon);display:none}.ck.ck-color-grid__tile.ck-on{box-shadow:inset 0 0 0 1px var(--ck-color-base-background),0 0 0 2px var(--ck-color-base-text)}.ck.ck-color-grid__tile.ck-on .ck.ck-icon{display:block}.ck.ck-color-grid__tile.ck-on,.ck.ck-color-grid__tile:focus:not(.ck-disabled),.ck.ck-color-grid__tile:hover:not(.ck-disabled){border:0}.ck.ck-color-grid__tile:focus:not(.ck-disabled),.ck.ck-color-grid__tile:hover:not(.ck-disabled){box-shadow:inset 0 0 0 1px var(--ck-color-base-background),0 0 0 2px var(--ck-color-focus-border)}.ck.ck-color-grid__label{padding:0 var(--ck-spacing-standard)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/colorgrid/colorgrid.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/colorgrid/colorgrid.css\"],\"names\":[],\"mappings\":\"AAKA,kBACC,YACD,CCAA,MACC,8BAA+B,CAK/B,wCACD,CAEA,kBACC,YAAa,CACb,WACD,CAEA,wBAOC,QAAS,CALT,qCAAsC,CAEtC,yCAA0C,CAD1C,wCAAyC,CAEzC,SAAU,CACV,8BAA+B,CAL/B,oCAyCD,CAjCC,oCACC,YAAa,CACb,gBACD,CAEA,4DACC,gDACD,CAEA,oCAEC,2CAA4C,CAD5C,YAED,CAEA,8BACC,8FAKD,CAHC,0CACC,aACD,CAGD,8HAIC,QACD,CAEA,gGAEC,iGACD,CAGD,yBACC,oCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-color-grid {\\n\\tdisplay: grid;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-color-grid-tile-size: 24px;\\n\\n\\t/* Not using global colors here because these may change but some colors in a pallette\\n\\t * require special treatment. For instance, this ensures no matter what the UI text color is,\\n\\t * the check icon will look good on the black color tile. */\\n\\t--ck-color-color-grid-check-icon: hsl(212, 81%, 46%);\\n}\\n\\n.ck.ck-color-grid {\\n\\tgrid-gap: 5px;\\n\\tpadding: 8px;\\n}\\n\\n.ck.ck-color-grid__tile {\\n\\twidth: var(--ck-color-grid-tile-size);\\n\\theight: var(--ck-color-grid-tile-size);\\n\\tmin-width: var(--ck-color-grid-tile-size);\\n\\tmin-height: var(--ck-color-grid-tile-size);\\n\\tpadding: 0;\\n\\ttransition: .2s ease box-shadow;\\n\\tborder: 0;\\n\\n\\t&.ck-disabled {\\n\\t\\tcursor: unset;\\n\\t\\ttransition: unset;\\n\\t}\\n\\n\\t&.ck-color-table__color-tile_bordered {\\n\\t\\tbox-shadow: 0 0 0 1px var(--ck-color-base-border);\\n\\t}\\n\\n\\t& .ck.ck-icon {\\n\\t\\tdisplay: none;\\n\\t\\tcolor: var(--ck-color-color-grid-check-icon);\\n\\t}\\n\\n\\t&.ck-on {\\n\\t\\tbox-shadow: inset 0 0 0 1px var(--ck-color-base-background), 0 0 0 2px var(--ck-color-base-text);\\n\\n\\t\\t& .ck.ck-icon {\\n\\t\\t\\tdisplay: block;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-on,\\n\\t&:focus:not( .ck-disabled ),\\n\\t&:hover:not( .ck-disabled ) {\\n\\t\\t/* Disable the default .ck-button's border ring. */\\n\\t\\tborder: 0;\\n\\t}\\n\\n\\t&:focus:not( .ck-disabled ),\\n\\t&:hover:not( .ck-disabled ) {\\n\\t\\tbox-shadow: inset 0 0 0 1px var(--ck-color-base-background), 0 0 0 2px var(--ck-color-focus-border);\\n\\t}\\n}\\n\\n.ck.ck-color-grid__label {\\n\\tpadding: 0 var(--ck-spacing-standard);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, 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.ck-dropdown__panel.ck-dropdown__panel_smw,.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_sw{bottom:auto;top:100%}.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_ne,.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_se{left:0}.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_nw,.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_sw{right:0}.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_n,.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_s{left:50%;transform:translateX(-50%)}.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_nmw,.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_smw{left:75%;transform:translateX(-75%)}.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_nme,.ck.ck-dropdown .ck-dropdown__panel.ck-dropdown__panel_sme{left:25%;transform:translateX(-25%)}.ck.ck-toolbar .ck-dropdown__panel{z-index:calc(var(--ck-z-modal) + 1)}:root{--ck-dropdown-arrow-size:calc(var(--ck-icon-size)*0.5)}.ck.ck-dropdown{font-size:inherit}.ck.ck-dropdown .ck-dropdown__arrow{width:var(--ck-dropdown-arrow-size)}[dir=ltr] .ck.ck-dropdown .ck-dropdown__arrow{margin-left:var(--ck-spacing-standard);right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-dropdown .ck-dropdown__arrow{left:var(--ck-spacing-standard);margin-right:var(--ck-spacing-small)}.ck.ck-dropdown.ck-disabled .ck-dropdown__arrow{opacity:var(--ck-disabled-opacity)}[dir=ltr] .ck.ck-dropdown .ck-button.ck-dropdown__button:not(.ck-button_with-text){padding-left:var(--ck-spacing-small)}[dir=rtl] .ck.ck-dropdown .ck-button.ck-dropdown__button:not(.ck-button_with-text){padding-right:var(--ck-spacing-small)}.ck.ck-dropdown .ck-button.ck-dropdown__button .ck-button__label{overflow:hidden;text-overflow:ellipsis;width:7em}.ck.ck-dropdown .ck-button.ck-dropdown__button.ck-disabled .ck-button__label{opacity:var(--ck-disabled-opacity)}.ck.ck-dropdown .ck-button.ck-dropdown__button.ck-on{border-bottom-left-radius:0;border-bottom-right-radius:0}.ck.ck-dropdown .ck-button.ck-dropdown__button.ck-dropdown__button_label-width_auto .ck-button__label{width:auto}.ck.ck-dropdown .ck-button.ck-dropdown__button.ck-off:active,.ck.ck-dropdown .ck-button.ck-dropdown__button.ck-on:active{box-shadow:none}.ck.ck-dropdown .ck-button.ck-dropdown__button.ck-off:active:focus,.ck.ck-dropdown .ck-button.ck-dropdown__button.ck-on:active:focus{box-shadow:var(--ck-focus-outer-shadow),0 0}.ck.ck-dropdown__panel{border-radius:0}.ck-rounded-corners .ck.ck-dropdown__panel,.ck.ck-dropdown__panel.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-dropdown__panel{background:var(--ck-color-dropdown-panel-background);border:1px solid var(--ck-color-dropdown-panel-border);bottom:0;box-shadow:var(--ck-drop-shadow),0 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\"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/dropdown/dropdown.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/dropdown.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_disabled.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,4BACD,CAEA,gBACC,oBAAqB,CACrB,iBA2ED,CAzEC,oCACC,mBAAoB,CACpB,2BACD,CAGA,+CACC,UACD,CAEA,oCACC,YAAa,CAEb,sCAAuC,CAEvC,iBAAkB,CAHlB,yBA4DD,CAvDC,+DACC,oBACD,CAEA,mSAKC,WACD,CAEA,mSAUC,WAAY,CADZ,QAED,CAEA,oHAEC,MACD,CAEA,oHAEC,OACD,CAEA,kHAGC,QAAS,CACT,0BACD,CAEA,sHAGC,QAAS,CACT,0BACD,CAEA,sHAGC,QAAS,CACT,0BACD,CAQF,mCACC,mCACD,CCpFA,MACC,sDACD,CAEA,gBAEC,iBA2ED,CAzEC,oCACC,mCACD,CAGC,8CAIC,sCAAuC,CAHvC,gCAID,CAIA,8CACC,+BAAgC,CAGhC,oCACD,CAGD,gDC/BA,kCDiCA,CAIE,mFAEC,oCACD,CAIA,mFAEC,qCACD,CAID,iEAEC,eAAgB,CAChB,sBAAuB,CAFvB,SAGD,CAGA,6EC1DD,kCD4DC,CAGA,qDACC,2BAA4B,CAC5B,4BACD,CAEA,sGACC,UACD,CAGA,yHAEC,eAKD,CAHC,qIE7EF,2CF+EE,CAKH,uBGlFC,eH8GD,CA5BA,qFG9EE,qCH0GF,CA5BA,uBAIC,oDAAqD,CACrD,sDAAuD,CACvD,QAAS,CE1FT,oCAA8B,CF6F9B,cAmBD,CAfC,6CACC,wBACD,CAEA,6CACC,yBACD,CAEA,6CACC,2BACD,CAEA,6CACC,4BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-dropdown-max-width: 75vw;\\n}\\n\\n.ck.ck-dropdown {\\n\\tdisplay: inline-block;\\n\\tposition: relative;\\n\\n\\t& .ck-dropdown__arrow {\\n\\t\\tpointer-events: none;\\n\\t\\tz-index: var(--ck-z-default);\\n\\t}\\n\\n\\t/* Dropdown button should span horizontally, e.g. in vertical toolbars */\\n\\t& .ck-button.ck-dropdown__button {\\n\\t\\twidth: 100%;\\n\\t}\\n\\n\\t& .ck-dropdown__panel {\\n\\t\\tdisplay: none;\\n\\t\\tz-index: var(--ck-z-modal);\\n\\t\\tmax-width: var(--ck-dropdown-max-width);\\n\\n\\t\\tposition: absolute;\\n\\n\\t\\t&.ck-dropdown__panel-visible {\\n\\t\\t\\tdisplay: inline-block;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_ne,\\n\\t\\t&.ck-dropdown__panel_nw,\\n\\t\\t&.ck-dropdown__panel_n,\\n\\t\\t&.ck-dropdown__panel_nmw,\\n\\t\\t&.ck-dropdown__panel_nme {\\n\\t\\t\\tbottom: 100%;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_se,\\n\\t\\t&.ck-dropdown__panel_sw,\\n\\t\\t&.ck-dropdown__panel_smw,\\n\\t\\t&.ck-dropdown__panel_sme,\\n\\t\\t&.ck-dropdown__panel_s {\\n\\t\\t\\t/*\\n\\t\\t\\t * Using transform: translate3d( 0, 100%, 0 ) causes blurry dropdown on Chrome 67-78+ on non-retina displays.\\n\\t\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/1053.\\n\\t\\t\\t */\\n\\t\\t\\ttop: 100%;\\n\\t\\t\\tbottom: auto;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_ne,\\n\\t\\t&.ck-dropdown__panel_se {\\n\\t\\t\\tleft: 0px;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_nw,\\n\\t\\t&.ck-dropdown__panel_sw {\\n\\t\\t\\tright: 0px;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_s,\\n\\t\\t&.ck-dropdown__panel_n {\\n\\t\\t\\t/* Positioning panels relative to the center of the button */\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\ttransform: translateX(-50%);\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_nmw,\\n\\t\\t&.ck-dropdown__panel_smw {\\n\\t\\t\\t/* Positioning panels relative to the middle-west of the button */\\n\\t\\t\\tleft: 75%;\\n\\t\\t\\ttransform: translateX(-75%);\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_nme,\\n\\t\\t&.ck-dropdown__panel_sme {\\n\\t\\t\\t/* Positioning panels relative to the middle-east of the button */\\n\\t\\t\\tleft: 25%;\\n\\t\\t\\ttransform: translateX(-25%);\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Toolbar dropdown panels should be always above the UI (eg. other dropdown panels) from the editor's content.\\n * See https://github.com/ckeditor/ckeditor5/issues/7874\\n */\\n.ck.ck-toolbar .ck-dropdown__panel {\\n\\tz-index: calc( var(--ck-z-modal) + 1 );\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n:root {\\n\\t--ck-dropdown-arrow-size: calc(0.5 * var(--ck-icon-size));\\n}\\n\\n.ck.ck-dropdown {\\n\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\tfont-size: inherit;\\n\\n\\t& .ck-dropdown__arrow {\\n\\t\\twidth: var(--ck-dropdown-arrow-size);\\n\\t}\\n\\n\\t@mixin ck-dir ltr {\\n\\t\\t& .ck-dropdown__arrow {\\n\\t\\t\\tright: var(--ck-spacing-standard);\\n\\n\\t\\t\\t/* A space to accommodate the triangle. */\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir rtl {\\n\\t\\t& .ck-dropdown__arrow {\\n\\t\\t\\tleft: var(--ck-spacing-standard);\\n\\n\\t\\t\\t/* A space to accommodate the triangle. */\\n\\t\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-disabled .ck-dropdown__arrow {\\n\\t\\t@mixin ck-disabled;\\n\\t}\\n\\n\\t& .ck-button.ck-dropdown__button {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t&:not(.ck-button_with-text) {\\n\\t\\t\\t\\t/* Make sure dropdowns with just an icon have the right inner spacing */\\n\\t\\t\\t\\tpadding-left: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t&:not(.ck-button_with-text) {\\n\\t\\t\\t\\t/* Make sure dropdowns with just an icon have the right inner spacing */\\n\\t\\t\\t\\tpadding-right: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* #23 */\\n\\t\\t& .ck-button__label {\\n\\t\\t\\twidth: 7em;\\n\\t\\t\\toverflow: hidden;\\n\\t\\t\\ttext-overflow: ellipsis;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/70 */\\n\\t\\t&.ck-disabled .ck-button__label {\\n\\t\\t\\t@mixin ck-disabled;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t\\t&.ck-on {\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__button_label-width_auto .ck-button__label {\\n\\t\\t\\twidth: auto;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5/issues/8699 */\\n\\t\\t&.ck-off:active,\\n\\t\\t&.ck-on:active {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t\\t\\n\\t\\t\\t&:focus {\\n\\t\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-dropdown__panel {\\n\\t@mixin ck-rounded-corners;\\n\\t@mixin ck-drop-shadow;\\n\\n\\tbackground: var(--ck-color-dropdown-panel-background);\\n\\tborder: 1px solid var(--ck-color-dropdown-panel-border);\\n\\tbottom: 0;\\n\\n\\t/* Make sure the panel is at least as wide as the drop-down's button. */\\n\\tmin-width: 100%;\\n\\n\\t/* Disabled corner border radius to be consistent with the .dropdown__button\\n\\thttps://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t&.ck-dropdown__panel_se {\\n\\t\\tborder-top-left-radius: 0;\\n\\t}\\n\\n\\t&.ck-dropdown__panel_sw {\\n\\t\\tborder-top-right-radius: 0;\\n\\t}\\n\\n\\t&.ck-dropdown__panel_ne {\\n\\t\\tborder-bottom-left-radius: 0;\\n\\t}\\n\\n\\t&.ck-dropdown__panel_nw {\\n\\t\\tborder-bottom-right-radius: 0;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class which indicates that an element holding it is disabled.\\n */\\n@define-mixin ck-disabled {\\n\\topacity: var(--ck-disabled-opacity);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-dropdown .ck-dropdown__panel .ck-list{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list,.ck.ck-dropdown .ck-dropdown__panel .ck-list.ck-rounded-corners{border-radius:var(--ck-border-radius);border-top-left-radius:0}.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button,.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius);border-bottom-left-radius:0;border-bottom-right-radius:0;border-top-left-radius:0}.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button,.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius);border-top-left-radius:0;border-top-right-radius:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/listdropdown.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAOA,6CCIC,eDqBD,CAzBA,iICQE,qCAAsC,CDJtC,wBAqBF,CAfE,mFCND,eDYC,CANA,6MCFA,qCAAsC,CDKpC,2BAA4B,CAC5B,4BAA6B,CAF7B,wBAIF,CAEA,kFCdD,eDmBC,CALA,2MCVA,qCAAsC,CDYpC,wBAAyB,CACzB,yBAEF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n.ck.ck-dropdown .ck-dropdown__panel .ck-list {\\n\\t/* Disabled radius of top-left border to be consistent with .dropdown__button\\n\\thttps://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t@mixin ck-rounded-corners {\\n\\t\\tborder-top-left-radius: 0;\\n\\t}\\n\\n\\t/* Make sure the button belonging to the first/last child of the list goes well with the\\n\\tborder radius of the entire panel. */\\n\\t& .ck-list__item {\\n\\t\\t&:first-child .ck-button {\\n\\t\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&:last-child .ck-button {\\n\\t\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-splitbutton{font-size:inherit}.ck.ck-splitbutton .ck-splitbutton__action:focus{z-index:calc(var(--ck-z-default) + 1)}:root{--ck-color-split-button-hover-background:#ebebeb;--ck-color-split-button-hover-border:#b3b3b3}[dir=ltr] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,[dir=ltr] .ck.ck-splitbutton:hover>.ck-splitbutton__action{border-bottom-right-radius:unset;border-top-right-radius:unset}[dir=rtl] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,[dir=rtl] .ck.ck-splitbutton:hover>.ck-splitbutton__action{border-bottom-left-radius:unset;border-top-left-radius:unset}.ck.ck-splitbutton>.ck-splitbutton__arrow{min-width:unset}[dir=ltr] .ck.ck-splitbutton>.ck-splitbutton__arrow{border-bottom-left-radius:unset;border-top-left-radius:unset}[dir=rtl] .ck.ck-splitbutton>.ck-splitbutton__arrow{border-bottom-right-radius:unset;border-top-right-radius:unset}.ck.ck-splitbutton>.ck-splitbutton__arrow svg{width:var(--ck-dropdown-arrow-size)}.ck.ck-splitbutton>.ck-splitbutton__arrow:not(:focus){border-bottom-width:0;border-top-width:0}.ck.ck-splitbutton.ck-splitbutton_open>.ck-button:not(.ck-on):not(.ck-disabled):not(:hover),.ck.ck-splitbutton:hover>.ck-button:not(.ck-on):not(.ck-disabled):not(:hover){background:var(--ck-color-split-button-hover-background)}.ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,.ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{background-color:var(--ck-color-split-button-hover-border);content:\\\"\\\";height:100%;position:absolute;width:1px}.ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:focus:after,.ck.ck-splitbutton:hover>.ck-splitbutton__arrow:focus:after{--ck-color-split-button-hover-border:var(--ck-color-focus-border)}[dir=ltr] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,[dir=ltr] .ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{left:-1px}[dir=rtl] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,[dir=rtl] .ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{right:-1px}.ck.ck-splitbutton.ck-splitbutton_open{border-radius:0}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners>.ck-splitbutton__action{border-bottom-left-radius:0}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners>.ck-splitbutton__arrow{border-bottom-right-radius:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/dropdown/splitbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/splitbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAKA,mBAEC,iBAKD,CAHC,iDACC,qCACD,CCJD,MACC,gDAAyD,CACzD,4CACD,CAMC,oIAKE,gCAAiC,CADjC,6BASF,CAbA,oIAWE,+BAAgC,CADhC,4BAGF,CAEA,0CAGC,eAiBD,CApBA,oDAQE,+BAAgC,CADhC,4BAaF,CApBA,oDAcE,gCAAiC,CADjC,6BAOF,CAHC,8CACC,mCACD,CAKD,sDAEC,qBAAwB,CADxB,kBAED,CAQC,0KACC,wDACD,CAIA,8JAKC,0DAA2D,CAJ3D,UAAW,CAGX,WAAY,CAFZ,iBAAkB,CAClB,SAGD,CAGA,sIACC,iEACD,CAGC,kLACC,SACD,CAIA,kLACC,UACD,CAMF,uCCzFA,eDmGA,CAVA,qHCrFC,qCD+FD,CARE,qKACC,2BACD,CAEA,mKACC,4BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-splitbutton {\\n\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\tfont-size: inherit;\\n\\n\\t& .ck-splitbutton__action:focus {\\n\\t\\tz-index: calc(var(--ck-z-default) + 1);\\n\\t}\\n}\\n\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-color-split-button-hover-background: hsl(0, 0%, 92%);\\n\\t--ck-color-split-button-hover-border: hsl(0, 0%, 70%);\\n}\\n\\n.ck.ck-splitbutton {\\n\\t/*\\n\\t * Note: ck-rounded and ck-dir mixins don't go together (because they both use @nest).\\n\\t */\\n\\t&:hover > .ck-splitbutton__action,\\n\\t&.ck-splitbutton_open > .ck-splitbutton__action {\\n\\t\\t@nest [dir=\\\"ltr\\\"] & {\\n\\t\\t\\t/* Don't round the action button on the right side */\\n\\t\\t\\tborder-top-right-radius: unset;\\n\\t\\t\\tborder-bottom-right-radius: unset;\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"rtl\\\"] & {\\n\\t\\t\\t/* Don't round the action button on the left side */\\n\\t\\t\\tborder-top-left-radius: unset;\\n\\t\\t\\tborder-bottom-left-radius: unset;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-splitbutton__arrow {\\n\\t\\t/* It's a text-less button and since the icon is positioned absolutely in such situation,\\n\\t\\tit must get some arbitrary min-width. */\\n\\t\\tmin-width: unset;\\n\\n\\t\\t@nest [dir=\\\"ltr\\\"] & {\\n\\t\\t\\t/* Don't round the arrow button on the left side */\\n\\t\\t\\tborder-top-left-radius: unset;\\n\\t\\t\\tborder-bottom-left-radius: unset;\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"rtl\\\"] & {\\n\\t\\t\\t/* Don't round the arrow button on the right side */\\n\\t\\t\\tborder-top-right-radius: unset;\\n\\t\\t\\tborder-bottom-right-radius: unset;\\n\\t\\t}\\n\\n\\t\\t& svg {\\n\\t\\t\\twidth: var(--ck-dropdown-arrow-size);\\n\\t\\t}\\n\\t}\\n\\n\\t/* Make sure the divider stretches 100% height of the button\\n\\thttps://github.com/ckeditor/ckeditor5/issues/10936 */\\n\\t& > .ck-splitbutton__arrow:not(:focus) {\\n\\t\\tborder-top-width: 0px;\\n\\t\\tborder-bottom-width: 0px;\\n\\t}\\n\\n\\t/* When the split button is \\\"open\\\" (the arrow is on) or being hovered, it should get some styling\\n\\tas a whole. The background of both buttons should stand out and there should be a visual\\n\\tseparation between both buttons. */\\n\\t&.ck-splitbutton_open,\\n\\t&:hover {\\n\\t\\t/* When the split button hovered as a whole, not as individual buttons. */\\n\\t\\t& > .ck-button:not(.ck-on):not(.ck-disabled):not(:hover) {\\n\\t\\t\\tbackground: var(--ck-color-split-button-hover-background);\\n\\t\\t}\\n\\n\\t\\t/* Splitbutton separator needs to be set with the ::after pseudoselector\\n\\t\\tto display properly the borders on focus */\\n\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\\n\\t\\t\\tcontent: '';\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\twidth: 1px;\\n\\t\\t\\theight: 100%;\\n\\t\\t\\tbackground-color: var(--ck-color-split-button-hover-border);\\n\\t\\t}\\n\\n\\t\\t/* Make sure the divider between the buttons looks fine when the button is focused */\\n\\t\\t& > .ck-splitbutton__arrow:focus::after {\\n\\t\\t\\t--ck-color-split-button-hover-border: var(--ck-color-focus-border);\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"ltr\\\"] & {\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\\n\\t\\t\\t\\tleft: -1px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"rtl\\\"] & {\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\\n\\t\\t\\t\\tright: -1px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/* Don't round the bottom left and right corners of the buttons when \\\"open\\\"\\n\\thttps://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t&.ck-splitbutton_open {\\n\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t& > .ck-splitbutton__action {\\n\\t\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-splitbutton__arrow {\\n\\t\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-toolbar-dropdown-max-width:60vw}.ck.ck-toolbar-dropdown>.ck-dropdown__panel{max-width:var(--ck-toolbar-dropdown-max-width);width:max-content}.ck.ck-toolbar-dropdown>.ck-dropdown__panel .ck-button:focus{z-index:calc(var(--ck-z-default) + 1)}.ck.ck-toolbar-dropdown .ck-toolbar{border:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/dropdown/toolbardropdown.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/toolbardropdown.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,oCACD,CAEA,4CAGC,8CAA+C,CAD/C,iBAQD,CAJE,6DACC,qCACD,CCZF,oCACC,QACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-toolbar-dropdown-max-width: 60vw;\\n}\\n\\n.ck.ck-toolbar-dropdown > .ck-dropdown__panel {\\n\\t/* https://github.com/ckeditor/ckeditor5/issues/5586 */\\n\\twidth: max-content;\\n\\tmax-width: var(--ck-toolbar-dropdown-max-width);\\n\\n\\t& .ck-button {\\n\\t\\t&:focus {\\n\\t\\t\\tz-index: calc(var(--ck-z-default) + 1);\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-toolbar-dropdown .ck-toolbar {\\n\\tborder: 0;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-editable-blur-selection:#d9d9d9}.ck.ck-editor__editable:not(.ck-editor__nested-editable){border-radius:0}.ck-rounded-corners .ck.ck-editor__editable:not(.ck-editor__nested-editable),.ck.ck-editor__editable.ck-rounded-corners:not(.ck-editor__nested-editable){border-radius:var(--ck-border-radius)}.ck.ck-editor__editable.ck-focused:not(.ck-editor__nested-editable){border:var(--ck-focus-ring);box-shadow:var(--ck-inner-shadow),0 0;outline:none}.ck.ck-editor__editable_inline{border:1px solid transparent;overflow:auto;padding:0 var(--ck-spacing-standard)}.ck.ck-editor__editable_inline[dir=ltr]{text-align:left}.ck.ck-editor__editable_inline[dir=rtl]{text-align:right}.ck.ck-editor__editable_inline>:first-child{margin-top:var(--ck-spacing-large)}.ck.ck-editor__editable_inline>:last-child{margin-bottom:var(--ck-spacing-large)}.ck.ck-editor__editable_inline.ck-blurred ::selection{background:var(--ck-color-editable-blur-selection)}.ck.ck-balloon-panel.ck-toolbar-container[class*=arrow_n]:after{border-bottom-color:var(--ck-color-base-foreground)}.ck.ck-balloon-panel.ck-toolbar-container[class*=arrow_s]:after{border-top-color:var(--ck-color-base-foreground)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/editorui/editorui.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAWA,MACC,0CACD,CAEA,yDCJC,eDWD,CAPA,yJCAE,qCDOF,CAJC,oEEPA,2BAA2B,CCF3B,qCAA8B,CDC9B,YFWA,CAGD,+BAGC,4BAA6B,CAF7B,aAAc,CACd,oCA6BD,CA1BC,wCACC,eACD,CAEA,wCACC,gBACD,CAGA,4CACC,kCACD,CAGA,2CAKC,qCACD,CAGA,sDACC,kDACD,CAKA,gEACC,mDACD,CAIA,gEACC,gDACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n@import \\\"../../../mixins/_focus.css\\\";\\n@import \\\"../../mixins/_button.css\\\";\\n\\n:root {\\n\\t--ck-color-editable-blur-selection: hsl(0, 0%, 85%);\\n}\\n\\n.ck.ck-editor__editable:not(.ck-editor__nested-editable) {\\n\\t@mixin ck-rounded-corners;\\n\\n\\t&.ck-focused {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-inner-shadow);\\n\\t}\\n}\\n\\n.ck.ck-editor__editable_inline {\\n\\toverflow: auto;\\n\\tpadding: 0 var(--ck-spacing-standard);\\n\\tborder: 1px solid transparent;\\n\\n\\t&[dir=\\\"ltr\\\"] {\\n\\t\\ttext-align: left;\\n\\t}\\n\\n\\t&[dir=\\\"rtl\\\"] {\\n\\t\\ttext-align: right;\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/116 */\\n\\t& > *:first-child {\\n\\t\\tmargin-top: var(--ck-spacing-large);\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5/issues/847 */\\n\\t& > *:last-child {\\n\\t\\t/*\\n\\t\\t * This value should match with the default margins of the block elements (like .media or .image)\\n\\t\\t * to avoid a content jumping when the fake selection container shows up (See https://github.com/ckeditor/ckeditor5/issues/9825).\\n\\t\\t */\\n\\t\\tmargin-bottom: var(--ck-spacing-large);\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5/issues/6517 */\\n\\t&.ck-blurred ::selection {\\n\\t\\tbackground: var(--ck-color-editable-blur-selection);\\n\\t}\\n}\\n\\n/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/111 */\\n.ck.ck-balloon-panel.ck-toolbar-container[class*=\\\"arrow_n\\\"] {\\n\\t&::after {\\n\\t\\tborder-bottom-color: var(--ck-color-base-foreground);\\n\\t}\\n}\\n\\n.ck.ck-balloon-panel.ck-toolbar-container[class*=\\\"arrow_s\\\"] {\\n\\t&::after {\\n\\t\\tborder-top-color: var(--ck-color-base-foreground);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-form__header{align-items:center;display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:space-between}:root{--ck-form-header-height:38px}.ck.ck-form__header{border-bottom:1px solid var(--ck-color-base-border);height:var(--ck-form-header-height);line-height:var(--ck-form-header-height);padding:var(--ck-spacing-small) var(--ck-spacing-large)}.ck.ck-form__header .ck-form__header__label{font-weight:700}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/formheader/formheader.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/formheader/formheader.css\"],\"names\":[],\"mappings\":\"AAKA,oBAIC,kBAAmB,CAHnB,YAAa,CACb,kBAAmB,CACnB,gBAAiB,CAEjB,6BACD,CCNA,MACC,4BACD,CAEA,oBAIC,mDAAoD,CAFpD,mCAAoC,CACpC,wCAAyC,CAFzC,uDAQD,CAHC,4CACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-form__header {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\talign-items: center;\\n\\tjustify-content: space-between;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-form-header-height: 38px;\\n}\\n\\n.ck.ck-form__header {\\n\\tpadding: var(--ck-spacing-small) var(--ck-spacing-large);\\n\\theight: var(--ck-form-header-height);\\n\\tline-height: var(--ck-form-header-height);\\n\\tborder-bottom: 1px solid var(--ck-color-base-border);\\n\\n\\t& .ck-form__header__label {\\n\\t\\tfont-weight: bold;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-icon{vertical-align:middle}:root{--ck-icon-size:calc(var(--ck-line-height-base)*var(--ck-font-size-normal))}.ck.ck-icon{font-size:.8333350694em;height:var(--ck-icon-size);width:var(--ck-icon-size);will-change:transform}.ck.ck-icon,.ck.ck-icon *{cursor:inherit}.ck.ck-icon.ck-icon_inherit-color,.ck.ck-icon.ck-icon_inherit-color *{color:inherit}.ck.ck-icon.ck-icon_inherit-color :not([fill]){fill:currentColor}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/icon/icon.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/icon/icon.css\"],\"names\":[],\"mappings\":\"AAKA,YACC,qBACD,CCFA,MACC,0EACD,CAEA,YAKC,uBAAwB,CAHxB,0BAA2B,CAD3B,yBAA0B,CAU1B,qBAoBD,CAlBC,0BALA,cAQA,CAMC,sEACC,aAMD,CAJC,+CAEC,iBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-icon {\\n\\tvertical-align: middle;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-icon-size: calc(var(--ck-line-height-base) * var(--ck-font-size-normal));\\n}\\n\\n.ck.ck-icon {\\n\\twidth: var(--ck-icon-size);\\n\\theight: var(--ck-icon-size);\\n\\n\\t/* Multiplied by the height of the line in \\\"px\\\" should give SVG \\\"viewport\\\" dimensions */\\n\\tfont-size: .8333350694em;\\n\\n\\t/* Inherit cursor style (#5). */\\n\\tcursor: inherit;\\n\\n\\t/* This will prevent blurry icons on Firefox. See #340. */\\n\\twill-change: transform;\\n\\n\\t& * {\\n\\t\\t/* Inherit cursor style (#5). */\\n\\t\\tcursor: inherit;\\n\\t}\\n\\n\\t/* Allows dynamic coloring of an icon by inheriting its color from the parent. */\\n\\t&.ck-icon_inherit-color {\\n\\t\\tcolor: inherit;\\n\\n\\t\\t& * {\\n\\t\\t\\tcolor: inherit;\\n\\n\\t\\t\\t&:not([fill]) {\\n\\t\\t\\t\\t/* Needed by FF. */\\n\\t\\t\\t\\tfill: currentColor;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-input-width:18em;--ck-input-text-width:var(--ck-input-width)}.ck.ck-input{border-radius:0}.ck-rounded-corners .ck.ck-input,.ck.ck-input.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-input{background:var(--ck-color-input-background);border:1px solid var(--ck-color-input-border);min-height:var(--ck-ui-component-min-height);min-width:var(--ck-input-width);padding:var(--ck-spacing-extra-tiny) var(--ck-spacing-medium);transition:box-shadow .1s ease-in-out,border .1s ease-in-out}.ck.ck-input:focus{border:var(--ck-focus-ring);box-shadow:var(--ck-focus-outer-shadow),0 0;outline:none}.ck.ck-input[readonly]{background:var(--ck-color-input-disabled-background);border:1px solid var(--ck-color-input-disabled-border);color:var(--ck-color-input-disabled-text)}.ck.ck-input[readonly]:focus{box-shadow:var(--ck-focus-disabled-outer-shadow),0 0}.ck.ck-input.ck-error{animation:ck-input-shake .3s ease both;border-color:var(--ck-color-input-error-border)}.ck.ck-input.ck-error:focus{box-shadow:var(--ck-focus-error-outer-shadow),0 0}@keyframes ck-input-shake{20%{transform:translateX(-2px)}40%{transform:translateX(2px)}60%{transform:translateX(-1px)}80%{transform:translateX(1px)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/input/input.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AASA,MACC,qBAAsB,CAGtB,2CACD,CAEA,aCLC,eD2CD,CAtCA,iECDE,qCDuCF,CAtCA,aAGC,2CAA4C,CAC5C,6CAA8C,CAK9C,4CAA6C,CAH7C,+BAAgC,CADhC,6DAA8D,CAO9D,4DA0BD,CAxBC,mBEnBA,2BAA2B,CCF3B,2CAA8B,CDC9B,YFuBA,CAEA,uBAEC,oDAAqD,CADrD,sDAAuD,CAEvD,yCAMD,CAJC,6BG/BD,oDHkCC,CAGD,sBAEC,sCAAuC,CADvC,+CAMD,CAHC,4BGzCD,iDH2CC,CAIF,0BACC,IACC,0BACD,CAEA,IACC,yBACD,CAEA,IACC,0BACD,CAEA,IACC,yBACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_focus.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-input-width: 18em;\\n\\n\\t/* Backward compatibility. */\\n\\t--ck-input-text-width: var(--ck-input-width);\\n}\\n\\n.ck.ck-input {\\n\\t@mixin ck-rounded-corners;\\n\\n\\tbackground: var(--ck-color-input-background);\\n\\tborder: 1px solid var(--ck-color-input-border);\\n\\tpadding: var(--ck-spacing-extra-tiny) var(--ck-spacing-medium);\\n\\tmin-width: var(--ck-input-width);\\n\\n\\t/* This is important to stay of the same height as surrounding buttons */\\n\\tmin-height: var(--ck-ui-component-min-height);\\n\\n\\t/* Apply some smooth transition to the box-shadow and border. */\\n\\ttransition: box-shadow .1s ease-in-out, border .1s ease-in-out;\\n\\n\\t&:focus {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\\n\\t}\\n\\n\\t&[readonly] {\\n\\t\\tborder: 1px solid var(--ck-color-input-disabled-border);\\n\\t\\tbackground: var(--ck-color-input-disabled-background);\\n\\t\\tcolor: var(--ck-color-input-disabled-text);\\n\\n\\t\\t&:focus {\\n\\t\\t\\t/* The read-only input should have a slightly less visible shadow when focused. */\\n\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-disabled-outer-shadow);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-error {\\n\\t\\tborder-color: var(--ck-color-input-error-border);\\n\\t\\tanimation: ck-input-shake .3s ease both;\\n\\n\\t\\t&:focus {\\n\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-error-outer-shadow);\\n\\t\\t}\\n\\t}\\n}\\n\\n@keyframes ck-input-shake {\\n\\t20% {\\n\\t\\ttransform: translateX(-2px);\\n\\t}\\n\\n\\t40% {\\n\\t\\ttransform: translateX(2px);\\n\\t}\\n\\n\\t60% {\\n\\t\\ttransform: translateX(-1px);\\n\\t}\\n\\n\\t80% {\\n\\t\\ttransform: translateX(1px);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-label{display:block}.ck.ck-voice-label{display:none}.ck.ck-label{font-weight:700}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/label/label.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/label/label.css\"],\"names\":[],\"mappings\":\"AAKA,aACC,aACD,CAEA,mBACC,YACD,CCNA,aACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-label {\\n\\tdisplay: block;\\n}\\n\\n.ck.ck-voice-label {\\n\\tdisplay: none;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-label {\\n\\tfont-weight: bold;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{display:flex;position:relative}.ck.ck-labeled-field-view .ck.ck-label{display:block;position:absolute}:root{--ck-labeled-field-view-transition:.1s cubic-bezier(0,0,0.24,0.95);--ck-labeled-field-empty-unfocused-max-width:100% - 2 * var(--ck-spacing-medium);--ck-labeled-field-label-default-position-x:var(--ck-spacing-medium);--ck-labeled-field-label-default-position-y:calc(var(--ck-font-size-base)*0.6);--ck-color-labeled-field-label-background:var(--ck-color-base-background)}.ck.ck-labeled-field-view{border-radius:0}.ck-rounded-corners .ck.ck-labeled-field-view,.ck.ck-labeled-field-view.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{width:100%}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{top:0}[dir=ltr] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{left:0}[dir=rtl] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{right:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:var(--ck-color-labeled-field-label-background);font-weight:400;line-height:normal;max-width:100%;overflow:hidden;padding:0 calc(var(--ck-font-size-tiny)*.5);pointer-events:none;text-overflow:ellipsis;transform:translate(var(--ck-spacing-medium),-6px) scale(.75);transform-origin:0 0;transition:transform var(--ck-labeled-field-view-transition),padding var(--ck-labeled-field-view-transition),background var(--ck-labeled-field-view-transition)}.ck.ck-labeled-field-view.ck-error .ck-input:not([readonly])+.ck.ck-label,.ck.ck-labeled-field-view.ck-error>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view .ck-labeled-field-view__status{font-size:var(--ck-font-size-small);margin-top:var(--ck-spacing-small);white-space:normal}.ck.ck-labeled-field-view .ck-labeled-field-view__status.ck-labeled-field-view__status_error{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view.ck-disabled>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-input-disabled-text)}[dir=ltr] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=ltr] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(var(--ck-labeled-field-label-default-position-x),var(--ck-labeled-field-label-default-position-y)) scale(1)}[dir=rtl] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=rtl] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(calc(var(--ck-labeled-field-label-default-position-x)*-1),var(--ck-labeled-field-label-default-position-y)) scale(1)}.ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:transparent;max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width));padding:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck.ck-button{background:transparent}.ck.ck-labeled-field-view.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck-button>.ck-button__label{opacity:0}.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown+.ck-label{max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width) - var(--ck-dropdown-arrow-size) - var(--ck-spacing-standard))}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/labeledfield/labeledfieldview.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/labeledfield/labeledfieldview.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAMC,mEACC,YAAa,CACb,iBACD,CAEA,uCACC,aAAc,CACd,iBACD,CCND,MACC,kEAAsE,CACtE,gFAAiF,CACjF,oEAAqE,CACrE,8EAAiF,CACjF,yEACD,CAEA,0BCLC,eD8GD,CAzGA,2FCDE,qCD0GF,CAtGC,mEACC,UAmCD,CAjCC,gFACC,KA+BD,CAhCA,0FAIE,MA4BF,CAhCA,0FAQE,OAwBF,CAhCA,gFAiBC,yDAA0D,CAG1D,eAAmB,CADnB,kBAAoB,CAOpB,cAAe,CAFf,eAAgB,CANhB,2CAA8C,CAP9C,mBAAoB,CAYpB,sBAAuB,CARvB,6DAA+D,CAH/D,oBAAqB,CAgBrB,+JAID,CAQA,mKACC,gCACD,CAGD,yDACC,mCAAoC,CACpC,kCAAmC,CAInC,kBAKD,CAHC,6FACC,gCACD,CAID,4OAEC,yCACD,CAIA,oUAGE,+HAYF,CAfA,oUAOE,wIAQF,CAfA,gTAaC,sBAAuB,CAFvB,iEAAkE,CAGlE,SACD,CAKA,8FACC,sBACD,CAGA,yIACC,SACD,CAGA,kMACC,8HACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-labeled-field-view {\\n\\t& > .ck.ck-labeled-field-view__input-wrapper {\\n\\t\\tdisplay: flex;\\n\\t\\tposition: relative;\\n\\t}\\n\\n\\t& .ck.ck-label {\\n\\t\\tdisplay: block;\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-labeled-field-view-transition: .1s cubic-bezier(0, 0, 0.24, 0.95);\\n\\t--ck-labeled-field-empty-unfocused-max-width: 100% - 2 * var(--ck-spacing-medium);\\n\\t--ck-labeled-field-label-default-position-x: var(--ck-spacing-medium);\\n\\t--ck-labeled-field-label-default-position-y: calc(0.6 * var(--ck-font-size-base));\\n\\t--ck-color-labeled-field-label-background: var(--ck-color-base-background);\\n}\\n\\n.ck.ck-labeled-field-view {\\n\\t@mixin ck-rounded-corners;\\n\\n\\t& > .ck.ck-labeled-field-view__input-wrapper {\\n\\t\\twidth: 100%;\\n\\n\\t\\t& > .ck.ck-label {\\n\\t\\t\\ttop: 0px;\\n\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tleft: 0px;\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tright: 0px;\\n\\t\\t\\t}\\n\\n\\t\\t\\tpointer-events: none;\\n\\t\\t\\ttransform-origin: 0 0;\\n\\n\\t\\t\\t/* By default, display the label scaled down above the field. */\\n\\t\\t\\ttransform: translate(var(--ck-spacing-medium), -6px) scale(.75);\\n\\n\\t\\t\\tbackground: var(--ck-color-labeled-field-label-background);\\n\\t\\t\\tpadding: 0 calc(.5 * var(--ck-font-size-tiny));\\n\\t\\t\\tline-height: initial;\\n\\t\\t\\tfont-weight: normal;\\n\\n\\t\\t\\t/* Prevent overflow when the label is longer than the input */\\n\\t\\t\\ttext-overflow: ellipsis;\\n\\t\\t\\toverflow: hidden;\\n\\n\\t\\t\\tmax-width: 100%;\\n\\n\\t\\t\\ttransition:\\n\\t\\t\\t\\ttransform var(--ck-labeled-field-view-transition),\\n\\t\\t\\t\\tpadding var(--ck-labeled-field-view-transition),\\n\\t\\t\\t\\tbackground var(--ck-labeled-field-view-transition);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-error {\\n\\t\\t& > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\\n\\t\\t\\tcolor: var(--ck-color-base-error);\\n\\t\\t}\\n\\n\\t\\t& .ck-input:not([readonly]) + .ck.ck-label {\\n\\t\\t\\tcolor: var(--ck-color-base-error);\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-labeled-field-view__status {\\n\\t\\tfont-size: var(--ck-font-size-small);\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\n\\t\\t/* Let the info wrap to the next line to avoid stretching the layout horizontally.\\n\\t\\tThe status could be very long. */\\n\\t\\twhite-space: normal;\\n\\n\\t\\t&.ck-labeled-field-view__status_error {\\n\\t\\t\\tcolor: var(--ck-color-base-error);\\n\\t\\t}\\n\\t}\\n\\n\\t/* Disabled fields and fields that have no focus should fade out. */\\n\\t&.ck-disabled > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\\n\\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\\n\\t\\tcolor: var(--ck-color-input-disabled-text);\\n\\t}\\n\\n\\t/* Fields that are disabled or not focused and without a placeholder should have full-sized labels. */\\n\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t&.ck-disabled.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\\n\\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\ttransform: translate(var(--ck-labeled-field-label-default-position-x), var(--ck-labeled-field-label-default-position-y)) scale(1);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\ttransform: translate(calc(-1 * var(--ck-labeled-field-label-default-position-x)), var(--ck-labeled-field-label-default-position-y)) scale(1);\\n\\t\\t}\\n\\n\\t\\t/* Compensate for the default translate position. */\\n\\t\\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width));\\n\\n\\t\\tbackground: transparent;\\n\\t\\tpadding: 0;\\n\\t}\\n\\n\\t/*------ DropdownView integration ----------------------------------------------------------------------------------- */\\n\\n\\t/* Make sure dropdown' background color in any of dropdown's state does not collide with labeled field. */\\n\\t& > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck.ck-button {\\n\\t\\tbackground: transparent;\\n\\t}\\n\\n\\t/* When the dropdown is \\\"empty\\\", the labeled field label replaces its label. */\\n\\t&.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck-button > .ck-button__label {\\n\\t\\topacity: 0;\\n\\t}\\n\\n\\t/* Make sure the label of the empty, unfocused input does not cover the dropdown arrow. */\\n\\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown + .ck-label {\\n\\t\\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width) - var(--ck-dropdown-arrow-size) - var(--ck-spacing-standard));\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-labeled-input .ck-labeled-input__status{font-size:var(--ck-font-size-small);margin-top:var(--ck-spacing-small);white-space:normal}.ck.ck-labeled-input .ck-labeled-input__status_error{color:var(--ck-color-base-error)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/labeledinput/labeledinput.css\"],\"names\":[],\"mappings\":\"AAKA,+CACC,mCAAoC,CACpC,kCAAmC,CAInC,kBACD,CAEA,qDACC,gCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-labeled-input .ck-labeled-input__status {\\n\\tfont-size: var(--ck-font-size-small);\\n\\tmargin-top: var(--ck-spacing-small);\\n\\n\\t/* Let the info wrap to the next line to avoid stretching the layout horizontally.\\n\\tThe status could be very long. */\\n\\twhite-space: normal;\\n}\\n\\n.ck.ck-labeled-input .ck-labeled-input__status_error {\\n\\tcolor: var(--ck-color-base-error);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-list{display:flex;flex-direction:column;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-list .ck-list__item,.ck.ck-list .ck-list__separator{display:block}.ck.ck-list .ck-list__item>:focus{position:relative;z-index:var(--ck-z-default)}.ck.ck-list{border-radius:0}.ck-rounded-corners .ck.ck-list,.ck.ck-list.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-list{background:var(--ck-color-list-background);list-style-type:none}.ck.ck-list__item{cursor:default;min-width:12em}.ck.ck-list__item .ck-button{border-radius:0;min-height:unset;padding:calc(var(--ck-line-height-base)*.2*var(--ck-font-size-base)) calc(var(--ck-line-height-base)*.4*var(--ck-font-size-base));text-align:left;width:100%}.ck.ck-list__item .ck-button .ck-button__label{line-height:calc(var(--ck-line-height-base)*1.2*var(--ck-font-size-base))}.ck.ck-list__item .ck-button:active{box-shadow:none}.ck.ck-list__item .ck-button.ck-on{background:var(--ck-color-list-button-on-background);color:var(--ck-color-list-button-on-text)}.ck.ck-list__item .ck-button.ck-on:active{box-shadow:none}.ck.ck-list__item .ck-button.ck-on:hover:not(.ck-disabled){background:var(--ck-color-list-button-on-background-focus)}.ck.ck-list__item .ck-button.ck-on:focus:not(.ck-switchbutton):not(.ck-disabled){border-color:var(--ck-color-base-background)}.ck.ck-list__item .ck-button:hover:not(.ck-disabled){background:var(--ck-color-list-button-hover-background)}.ck.ck-list__item .ck-switchbutton.ck-on{background:var(--ck-color-list-background);color:inherit}.ck.ck-list__item .ck-switchbutton.ck-on:hover:not(.ck-disabled){background:var(--ck-color-list-button-hover-background);color:inherit}.ck.ck-list__separator{background:var(--ck-color-base-border);height:1px;width:100%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/list/list.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_unselectable.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/list/list.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAOA,YAGC,YAAa,CACb,qBAAsB,CCFtB,qBAAsB,CACtB,wBAAyB,CACzB,oBAAqB,CACrB,gBDaD,CAZC,2DAEC,aACD,CAKA,kCACC,iBAAkB,CAClB,2BACD,CEfD,YCEC,eDGD,CALA,+DCME,qCDDF,CALA,YAIC,0CAA2C,CAD3C,oBAED,CAEA,kBACC,cAAe,CACf,cA2DD,CAzDC,6BAIC,eAAgB,CAHhB,gBAAiB,CAQjB,iIAEiE,CARjE,eAAgB,CADhB,UAwCD,CA7BC,+CAEC,yEACD,CAEA,oCACC,eACD,CAEA,mCACC,oDAAqD,CACrD,yCAaD,CAXC,0CACC,eACD,CAEA,2DACC,0DACD,CAEA,iFACC,4CACD,CAGD,qDACC,uDACD,CAMA,yCACC,0CAA2C,CAC3C,aAMD,CAJC,iEACC,uDAAwD,CACxD,aACD,CAKH,uBAGC,sCAAuC,CAFvC,UAAW,CACX,UAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../mixins/_unselectable.css\\\";\\n\\n.ck.ck-list {\\n\\t@mixin ck-unselectable;\\n\\n\\tdisplay: flex;\\n\\tflex-direction: column;\\n\\n\\t& .ck-list__item,\\n\\t& .ck-list__separator {\\n\\t\\tdisplay: block;\\n\\t}\\n\\n\\t/* Make sure that whatever child of the list item gets focus, it remains on the\\n\\ttop. Thanks to that, styles like box-shadow, outline, etc. are not masked by\\n\\tadjacent list items. */\\n\\t& .ck-list__item > *:focus {\\n\\t\\tposition: relative;\\n\\t\\tz-index: var(--ck-z-default);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Makes element unselectable.\\n */\\n@define-mixin ck-unselectable {\\n\\t-moz-user-select: none;\\n\\t-webkit-user-select: none;\\n\\t-ms-user-select: none;\\n\\tuser-select: none\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n.ck.ck-list {\\n\\t@mixin ck-rounded-corners;\\n\\n\\tlist-style-type: none;\\n\\tbackground: var(--ck-color-list-background);\\n}\\n\\n.ck.ck-list__item {\\n\\tcursor: default;\\n\\tmin-width: 12em;\\n\\n\\t& .ck-button {\\n\\t\\tmin-height: unset;\\n\\t\\twidth: 100%;\\n\\t\\ttext-align: left;\\n\\t\\tborder-radius: 0;\\n\\n\\t\\t/* List items should have the same height. Use absolute units to make sure it is so\\n\\t\\t   because e.g. different heading styles may have different height\\n\\t\\t   https://github.com/ckeditor/ckeditor5-heading/issues/63 */\\n\\t\\tpadding:\\n\\t\\t\\tcalc(.2 * var(--ck-line-height-base) * var(--ck-font-size-base))\\n\\t\\t\\tcalc(.4 * var(--ck-line-height-base) * var(--ck-font-size-base));\\n\\n\\t\\t& .ck-button__label {\\n\\t\\t\\t/* https://github.com/ckeditor/ckeditor5-heading/issues/63 */\\n\\t\\t\\tline-height: calc(1.2 * var(--ck-line-height-base) * var(--ck-font-size-base));\\n\\t\\t}\\n\\n\\t\\t&:active {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t}\\n\\n\\t\\t&.ck-on {\\n\\t\\t\\tbackground: var(--ck-color-list-button-on-background);\\n\\t\\t\\tcolor: var(--ck-color-list-button-on-text);\\n\\n\\t\\t\\t&:active {\\n\\t\\t\\t\\tbox-shadow: none;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&:hover:not(.ck-disabled) {\\n\\t\\t\\t\\tbackground: var(--ck-color-list-button-on-background-focus);\\n\\t\\t\\t}\\n\\n\\t\\t\\t&:focus:not(.ck-switchbutton):not(.ck-disabled) {\\n\\t\\t\\t\\tborder-color: var(--ck-color-base-background);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&:hover:not(.ck-disabled) {\\n\\t\\t\\tbackground: var(--ck-color-list-button-hover-background);\\n\\t\\t}\\n\\t}\\n\\n\\t/* It's unnecessary to change the background/text of a switch toggle; it has different ways\\n\\tof conveying its state (like the switcher) */\\n\\t& .ck-switchbutton {\\n\\t\\t&.ck-on {\\n\\t\\t\\tbackground: var(--ck-color-list-background);\\n\\t\\t\\tcolor: inherit;\\n\\n\\t\\t\\t&:hover:not(.ck-disabled) {\\n\\t\\t\\t\\tbackground: var(--ck-color-list-button-hover-background);\\n\\t\\t\\t\\tcolor: inherit;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-list__separator {\\n\\theight: 1px;\\n\\twidth: 100%;\\n\\tbackground: var(--ck-color-base-border);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-balloon-panel-arrow-z-index:calc(var(--ck-z-default) - 3)}.ck.ck-balloon-panel{display:none;position:absolute;z-index:var(--ck-z-modal)}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after,.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{content:\\\"\\\";position:absolute}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel[class*=arrow_n]:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel[class*=arrow_n]:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel[class*=arrow_s]:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel[class*=arrow_s]:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel.ck-balloon-panel_visible{display:block}:root{--ck-balloon-border-width:1px;--ck-balloon-arrow-offset:2px;--ck-balloon-arrow-height:10px;--ck-balloon-arrow-half-width:8px;--ck-balloon-arrow-drop-shadow:0 2px 2px var(--ck-color-shadow-drop)}.ck.ck-balloon-panel{border-radius:0}.ck-rounded-corners .ck.ck-balloon-panel,.ck.ck-balloon-panel.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-balloon-panel{background:var(--ck-color-panel-background);border:var(--ck-balloon-border-width) solid var(--ck-color-panel-border);box-shadow:var(--ck-drop-shadow),0 0;min-height:15px}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after,.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{border-style:solid;height:0;width:0}.ck.ck-balloon-panel[class*=arrow_n]:after,.ck.ck-balloon-panel[class*=arrow_n]:before{border-width:0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width)}.ck.ck-balloon-panel[class*=arrow_n]:before{border-color:transparent transparent var(--ck-color-panel-border) transparent;margin-top:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_n]:after{border-color:transparent transparent var(--ck-color-panel-background) transparent;margin-top:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel[class*=arrow_s]:after,.ck.ck-balloon-panel[class*=arrow_s]:before{border-width:var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width)}.ck.ck-balloon-panel[class*=arrow_s]:before{border-color:var(--ck-color-panel-border) transparent transparent;filter:drop-shadow(var(--ck-balloon-arrow-drop-shadow));margin-bottom:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_s]:after{border-color:var(--ck-color-panel-background) transparent transparent transparent;margin-bottom:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel[class*=arrow_e]:after,.ck.ck-balloon-panel[class*=arrow_e]:before{border-width:var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height)}.ck.ck-balloon-panel[class*=arrow_e]:before{border-color:transparent transparent transparent var(--ck-color-panel-border);margin-right:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_e]:after{border-color:transparent transparent transparent var(--ck-color-panel-background);margin-right:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel[class*=arrow_w]:after,.ck.ck-balloon-panel[class*=arrow_w]:before{border-width:var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0}.ck.ck-balloon-panel[class*=arrow_w]:before{border-color:transparent var(--ck-color-panel-border) transparent transparent;margin-left:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_w]:after{border-color:transparent var(--ck-color-panel-background) transparent transparent;margin-left:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel.ck-balloon-panel_arrow_n:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_n:before{left:50%;margin-left:calc(var(--ck-balloon-arrow-half-width)*-1);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_nw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_nw:before{left:calc(var(--ck-balloon-arrow-half-width)*2);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_ne:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_ne:before{right:calc(var(--ck-balloon-arrow-half-width)*2);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_s:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_s:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);left:50%;margin-left:calc(var(--ck-balloon-arrow-half-width)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_sw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_sw:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);left:calc(var(--ck-balloon-arrow-half-width)*2)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_se:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_se:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);right:calc(var(--ck-balloon-arrow-half-width)*2)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_sme:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_sme:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);margin-right:calc(var(--ck-balloon-arrow-half-width)*2);right:25%}.ck.ck-balloon-panel.ck-balloon-panel_arrow_smw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_smw:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);left:25%;margin-left:calc(var(--ck-balloon-arrow-half-width)*2)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_nme:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_nme:before{margin-right:calc(var(--ck-balloon-arrow-half-width)*2);right:25%;top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_nmw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_nmw:before{left:25%;margin-left:calc(var(--ck-balloon-arrow-half-width)*2);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_e:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_e:before{margin-top:calc(var(--ck-balloon-arrow-half-width)*-1);right:calc(var(--ck-balloon-arrow-height)*-1);top:50%}.ck.ck-balloon-panel.ck-balloon-panel_arrow_w:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_w:before{left:calc(var(--ck-balloon-arrow-height)*-1);margin-top:calc(var(--ck-balloon-arrow-half-width)*-1);top:50%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/balloonpanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/balloonpanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAKA,MAEC,8DACD,CAEA,qBACC,YAAa,CACb,iBAAkB,CAElB,yBAyCD,CAtCE,+GAEC,UAAW,CACX,iBACD,CAEA,wDACC,6CACD,CAEA,uDACC,uDACD,CAIA,4CACC,6CACD,CAEA,2CACC,uDACD,CAIA,4CACC,6CACD,CAEA,2CACC,uDACD,CAGD,8CACC,aACD,CC9CD,MACC,6BAA8B,CAC9B,6BAA8B,CAC9B,8BAA+B,CAC/B,iCAAkC,CAClC,oEACD,CAEA,qBCLC,eDmMD,CA9LA,iFCDE,qCD+LF,CA9LA,qBAMC,2CAA4C,CAC5C,wEAAyE,CEdzE,oCAA8B,CFW9B,eA0LD,CApLE,+GAIC,kBAAmB,CADnB,QAAS,CADT,OAGD,CAIA,uFAEC,mHACD,CAEA,4CACC,6EAA8E,CAC9E,kDACD,CAEA,2CACC,iFAAkF,CAClF,gFACD,CAIA,uFAEC,mHACD,CAEA,4CACC,iEAAkE,CAClE,uDAAwD,CACxD,qDACD,CAEA,2CACC,iFAAkF,CAClF,mFACD,CAIA,uFAEC,mHACD,CAEA,4CACC,6EAA8E,CAC9E,oDACD,CAEA,2CACC,iFAAkF,CAClF,kFACD,CAIA,uFAEC,mHACD,CAEA,4CACC,6EAA8E,CAC9E,mDACD,CAEA,2CACC,iFAAkF,CAClF,iFACD,CAIA,yGAEC,QAAS,CACT,uDAA0D,CAC1D,2CACD,CAIA,2GAEC,+CAAkD,CAClD,2CACD,CAIA,2GAEC,gDAAmD,CACnD,2CACD,CAIA,yGAIC,8CAAiD,CAFjD,QAAS,CACT,uDAED,CAIA,2GAGC,8CAAiD,CADjD,+CAED,CAIA,2GAGC,8CAAiD,CADjD,gDAED,CAIA,6GAIC,8CAAiD,CADjD,uDAA0D,CAD1D,SAGD,CAIA,6GAIC,8CAAiD,CAFjD,QAAS,CACT,sDAED,CAIA,6GAGC,uDAA0D,CAD1D,SAAU,CAEV,2CACD,CAIA,6GAEC,QAAS,CACT,sDAAyD,CACzD,2CACD,CAIA,yGAGC,sDAAyD,CADzD,6CAAgD,CAEhD,OACD,CAIA,yGAEC,4CAA+C,CAC/C,sDAAyD,CACzD,OACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/* Make sure the balloon arrow does not float over its children. */\\n\\t--ck-balloon-panel-arrow-z-index: calc(var(--ck-z-default) - 3);\\n}\\n\\n.ck.ck-balloon-panel {\\n\\tdisplay: none;\\n\\tposition: absolute;\\n\\n\\tz-index: var(--ck-z-modal);\\n\\n\\t&.ck-balloon-panel_with-arrow {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\tposition: absolute;\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tz-index: var(--ck-balloon-panel-arrow-z-index);\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_n\\\"] {\\n\\t\\t&::before {\\n\\t\\t\\tz-index: var(--ck-balloon-panel-arrow-z-index);\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_s\\\"] {\\n\\t\\t&::before {\\n\\t\\t\\tz-index: var(--ck-balloon-panel-arrow-z-index);\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_visible {\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-balloon-border-width: 1px;\\n\\t--ck-balloon-arrow-offset: 2px;\\n\\t--ck-balloon-arrow-height: 10px;\\n\\t--ck-balloon-arrow-half-width: 8px;\\n\\t--ck-balloon-arrow-drop-shadow: 0 2px 2px var(--ck-color-shadow-drop);\\n}\\n\\n.ck.ck-balloon-panel {\\n\\t@mixin ck-rounded-corners;\\n\\t@mixin ck-drop-shadow;\\n\\n\\tmin-height: 15px;\\n\\n\\tbackground: var(--ck-color-panel-background);\\n\\tborder: var(--ck-balloon-border-width) solid var(--ck-color-panel-border);\\n\\n\\t&.ck-balloon-panel_with-arrow {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\twidth: 0;\\n\\t\\t\\theight: 0;\\n\\t\\t\\tborder-style: solid;\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_n\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width);\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: transparent transparent var(--ck-color-panel-border) transparent;\\n\\t\\t\\tmargin-top: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: transparent transparent var(--ck-color-panel-background) transparent;\\n\\t\\t\\tmargin-top: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_s\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width);\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: var(--ck-color-panel-border) transparent transparent;\\n\\t\\t\\tfilter: drop-shadow(var(--ck-balloon-arrow-drop-shadow));\\n\\t\\t\\tmargin-bottom: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: var(--ck-color-panel-background) transparent transparent transparent;\\n\\t\\t\\tmargin-bottom: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_e\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height);\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: transparent transparent transparent var(--ck-color-panel-border);\\n\\t\\t\\tmargin-right: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: transparent transparent transparent var(--ck-color-panel-background);\\n\\t\\t\\tmargin-right: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_w\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0;\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: transparent var(--ck-color-panel-border) transparent transparent;\\n\\t\\t\\tmargin-left: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: transparent var(--ck-color-panel-background) transparent transparent;\\n\\t\\t\\tmargin-left: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_n {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_nw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_ne {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_s {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_sw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_se {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_sme {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: 25%;\\n\\t\\t\\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_smw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 25%;\\n\\t\\t\\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_nme {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: 25%;\\n\\t\\t\\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_nmw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 25%;\\n\\t\\t\\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_e {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t\\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: 50%;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_w {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t\\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-balloon-rotator__navigation{align-items:center;display:flex;justify-content:center}.ck .ck-balloon-rotator__content .ck-toolbar{justify-content:center}.ck .ck-balloon-rotator__navigation{background:var(--ck-color-toolbar-background);border-bottom:1px solid var(--ck-color-toolbar-border);padding:0 var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation>*{margin-bottom:var(--ck-spacing-small);margin-right:var(--ck-spacing-small);margin-top:var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation .ck-balloon-rotator__counter{margin-left:var(--ck-spacing-small);margin-right:var(--ck-spacing-standard)}.ck .ck-balloon-rotator__content .ck.ck-annotation-wrapper{box-shadow:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/balloonrotator.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/balloonrotator.css\"],\"names\":[],\"mappings\":\"AAKA,oCAEC,kBAAmB,CADnB,YAAa,CAEb,sBACD,CAKA,6CACC,sBACD,CCXA,oCACC,6CAA8C,CAC9C,sDAAuD,CACvD,iCAgBD,CAbC,sCAGC,qCAAsC,CAFtC,oCAAqC,CACrC,kCAED,CAGA,iEAIC,mCAAoC,CAHpC,uCAID,CAMA,2DACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-balloon-rotator__navigation {\\n\\tdisplay: flex;\\n\\talign-items: center;\\n\\tjustify-content: center;\\n}\\n\\n/* Buttons inside a toolbar should be centered when rotator bar is wider.\\n * See: https://github.com/ckeditor/ckeditor5-ui/issues/495\\n */\\n.ck .ck-balloon-rotator__content .ck-toolbar {\\n\\tjustify-content: center;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-balloon-rotator__navigation {\\n\\tbackground: var(--ck-color-toolbar-background);\\n\\tborder-bottom: 1px solid var(--ck-color-toolbar-border);\\n\\tpadding: 0 var(--ck-spacing-small);\\n\\n\\t/* Let's keep similar appearance to `ck-toolbar`. */\\n\\t& > * {\\n\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\t\\tmargin-bottom: var(--ck-spacing-small);\\n\\t}\\n\\n\\t/* Gives counter more breath than buttons. */\\n\\t& .ck-balloon-rotator__counter {\\n\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\n\\t\\t/* We need to use smaller margin because of previous button's right margin. */\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n}\\n\\n.ck .ck-balloon-rotator__content {\\n\\n\\t/* Disable default annotation shadow inside rotator with fake panels. */\\n\\t& .ck.ck-annotation-wrapper {\\n\\t\\tbox-shadow: none;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-fake-panel{position:absolute;z-index:calc(var(--ck-z-modal) - 1)}.ck .ck-fake-panel div{position:absolute}.ck .ck-fake-panel div:first-child{z-index:2}.ck .ck-fake-panel div:nth-child(2){z-index:1}:root{--ck-balloon-fake-panel-offset-horizontal:6px;--ck-balloon-fake-panel-offset-vertical:6px}.ck .ck-fake-panel div{background:var(--ck-color-panel-background);border:1px solid var(--ck-color-panel-border);border-radius:var(--ck-border-radius);box-shadow:var(--ck-drop-shadow),0 0;height:100%;min-height:15px;width:100%}.ck .ck-fake-panel div:first-child{margin-left:var(--ck-balloon-fake-panel-offset-horizontal);margin-top:var(--ck-balloon-fake-panel-offset-vertical)}.ck .ck-fake-panel div:nth-child(2){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*2);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*2)}.ck .ck-fake-panel div:nth-child(3){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*3);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*3)}.ck .ck-balloon-panel_arrow_s+.ck-fake-panel,.ck .ck-balloon-panel_arrow_se+.ck-fake-panel,.ck .ck-balloon-panel_arrow_sw+.ck-fake-panel{--ck-balloon-fake-panel-offset-vertical:-6px}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/fakepanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/fakepanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAKA,mBACC,iBAAkB,CAGlB,mCACD,CAEA,uBACC,iBACD,CAEA,mCACC,SACD,CAEA,oCACC,SACD,CCfA,MACC,6CAA8C,CAC9C,2CACD,CAGA,uBAKC,2CAA4C,CAC5C,6CAA8C,CAC9C,qCAAsC,CCXtC,oCAA8B,CDc9B,WAAY,CAPZ,eAAgB,CAMhB,UAED,CAEA,mCACC,0DAA2D,CAC3D,uDACD,CAEA,oCACC,kEAAqE,CACrE,+DACD,CACA,oCACC,kEAAqE,CACrE,+DACD,CAGA,yIAGC,4CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-fake-panel {\\n\\tposition: absolute;\\n\\n\\t/* Fake panels should be placed under main balloon content. */\\n\\tz-index: calc(var(--ck-z-modal) - 1);\\n}\\n\\n.ck .ck-fake-panel div {\\n\\tposition: absolute;\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 1 ) {\\n\\tz-index: 2;\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 2 ) {\\n\\tz-index: 1;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-balloon-fake-panel-offset-horizontal: 6px;\\n\\t--ck-balloon-fake-panel-offset-vertical: 6px;\\n}\\n\\n/* Let's use `.ck-balloon-panel` appearance. See: balloonpanel.css. */\\n.ck .ck-fake-panel div {\\n\\t@mixin ck-drop-shadow;\\n\\n\\tmin-height: 15px;\\n\\n\\tbackground: var(--ck-color-panel-background);\\n\\tborder: 1px solid var(--ck-color-panel-border);\\n\\tborder-radius: var(--ck-border-radius);\\n\\n\\twidth: 100%;\\n\\theight: 100%;\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 1 ) {\\n\\tmargin-left: var(--ck-balloon-fake-panel-offset-horizontal);\\n\\tmargin-top: var(--ck-balloon-fake-panel-offset-vertical);\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 2 ) {\\n\\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 2);\\n\\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 2);\\n}\\n.ck .ck-fake-panel div:nth-child( 3 ) {\\n\\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 3);\\n\\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 3);\\n}\\n\\n/* If balloon is positioned above element, we need to move fake panel to the top. */\\n.ck .ck-balloon-panel_arrow_s + .ck-fake-panel,\\n.ck .ck-balloon-panel_arrow_se + .ck-fake-panel,\\n.ck .ck-balloon-panel_arrow_sw + .ck-fake-panel {\\n\\t--ck-balloon-fake-panel-offset-vertical: -6px;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-sticky-panel .ck-sticky-panel__content_sticky{position:fixed;top:0;z-index:var(--ck-z-modal)}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky_bottom-limit{position:absolute;top:auto}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky{border-top-left-radius:0;border-top-right-radius:0;border-width:0 1px 1px;box-shadow:var(--ck-drop-shadow),0 0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/stickypanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/stickypanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAMC,qDAEC,cAAe,CACf,KAAM,CAFN,yBAGD,CAEA,kEAEC,iBAAkB,CADlB,QAED,CCPA,qDAIC,wBAAyB,CACzB,yBAA0B,CAF1B,sBAAuB,CCFxB,oCDKA\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-sticky-panel {\\n\\t& .ck-sticky-panel__content_sticky {\\n\\t\\tz-index: var(--ck-z-modal); /* #315 */\\n\\t\\tposition: fixed;\\n\\t\\ttop: 0;\\n\\t}\\n\\n\\t& .ck-sticky-panel__content_sticky_bottom-limit {\\n\\t\\ttop: auto;\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n.ck.ck-sticky-panel {\\n\\t& .ck-sticky-panel__content_sticky {\\n\\t\\t@mixin ck-drop-shadow;\\n\\n\\t\\tborder-width: 0 1px 1px;\\n\\t\\tborder-top-left-radius: 0;\\n\\t\\tborder-top-right-radius: 0;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-vertical-form .ck-button:after{bottom:-1px;content:\\\"\\\";position:absolute;right:-1px;top:-1px;width:0;z-index:1}.ck-vertical-form .ck-button:focus:after{display:none}@media screen and (max-width:600px){.ck.ck-responsive-form .ck-button:after{bottom:-1px;content:\\\"\\\";position:absolute;right:-1px;top:-1px;width:0;z-index:1}.ck.ck-responsive-form .ck-button:focus:after{display:none}}.ck-vertical-form>.ck-button:nth-last-child(2):after{border-right:1px solid var(--ck-color-base-border)}.ck.ck-responsive-form{padding:var(--ck-spacing-large)}.ck.ck-responsive-form:focus{outline:none}[dir=ltr] .ck.ck-responsive-form>:not(:first-child),[dir=rtl] .ck.ck-responsive-form>:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-responsive-form{padding:0;width:calc(var(--ck-input-width)*.8)}.ck.ck-responsive-form .ck-labeled-field-view{margin:var(--ck-spacing-large) var(--ck-spacing-large) 0}.ck.ck-responsive-form .ck-labeled-field-view .ck-input-text{min-width:0;width:100%}.ck.ck-responsive-form .ck-labeled-field-view .ck-labeled-field-view__error{white-space:normal}.ck.ck-responsive-form>.ck-button:nth-last-child(2):after{border-right:1px solid var(--ck-color-base-border)}.ck.ck-responsive-form>.ck-button:last-child,.ck.ck-responsive-form>.ck-button:nth-last-child(2){border-radius:0;margin-top:var(--ck-spacing-large);padding:var(--ck-spacing-standard)}.ck.ck-responsive-form>.ck-button:last-child:not(:focus),.ck.ck-responsive-form>.ck-button:nth-last-child(2):not(:focus){border-top:1px solid var(--ck-color-base-border)}[dir=ltr] .ck.ck-responsive-form>.ck-button:last-child,[dir=ltr] .ck.ck-responsive-form>.ck-button:nth-last-child(2),[dir=rtl] .ck.ck-responsive-form>.ck-button:last-child,[dir=rtl] .ck.ck-responsive-form>.ck-button:nth-last-child(2){margin-left:0}[dir=rtl] .ck.ck-responsive-form>.ck-button:last-child:last-of-type,[dir=rtl] .ck.ck-responsive-form>.ck-button:nth-last-child(2):last-of-type{border-right:1px solid var(--ck-color-base-border)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/responsive-form/responsiveform.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/responsive-form/responsiveform.css\"],\"names\":[],\"mappings\":\"AAQC,mCAMC,WAAY,CALZ,UAAW,CAEX,iBAAkB,CAClB,UAAW,CACX,QAAS,CAHT,OAAQ,CAKR,SACD,CAEA,yCACC,YACD,CCdA,oCDoBE,wCAMC,WAAY,CALZ,UAAW,CAEX,iBAAkB,CAClB,UAAW,CACX,QAAS,CAHT,OAAQ,CAKR,SACD,CAEA,8CACC,YACD,CC9BF,CCAD,qDACC,kDACD,CAEA,uBACC,+BAmED,CAjEC,6BAEC,YACD,CASC,uGACC,sCACD,CDvBD,oCCMD,uBAqBE,SAAU,CACV,oCA8CF,CA5CE,8CACC,wDAWD,CATC,6DACC,WAAY,CACZ,UACD,CAGA,4EACC,kBACD,CAKA,0DACC,kDACD,CAGD,iGAIC,eAAgB,CADhB,kCAAmC,CADnC,kCAmBD,CAfC,yHACC,gDACD,CARD,0OAeE,aAMF,CAJE,+IACC,kDACD,CDpEH\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck-vertical-form .ck-button {\\n\\t&::after {\\n\\t\\tcontent: \\\"\\\";\\n\\t\\twidth: 0;\\n\\t\\tposition: absolute;\\n\\t\\tright: -1px;\\n\\t\\ttop: -1px;\\n\\t\\tbottom: -1px;\\n\\t\\tz-index: 1;\\n\\t}\\n\\n\\t&:focus::after {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\\n.ck.ck-responsive-form {\\n\\t@mixin ck-media-phone {\\n\\t\\t& .ck-button {\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tright: -1px;\\n\\t\\t\\t\\ttop: -1px;\\n\\t\\t\\t\\tbottom: -1px;\\n\\t\\t\\t\\tz-index: 1;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&:focus::after {\\n\\t\\t\\t\\tdisplay: none;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck-vertical-form > .ck-button:nth-last-child(2)::after {\\n\\tborder-right: 1px solid var(--ck-color-base-border);\\n}\\n\\n.ck.ck-responsive-form {\\n\\tpadding: var(--ck-spacing-large);\\n\\n\\t&:focus {\\n\\t\\t/* See: https://github.com/ckeditor/ckeditor5/issues/4773 */\\n\\t\\toutline: none;\\n\\t}\\n\\n\\t@mixin ck-dir ltr {\\n\\t\\t& > :not(:first-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir rtl {\\n\\t\\t& > :not(:last-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tpadding: 0;\\n\\t\\twidth: calc(.8 * var(--ck-input-width));\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) 0;\\n\\n\\t\\t\\t& .ck-input-text {\\n\\t\\t\\t\\tmin-width: 0;\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t}\\n\\n\\t\\t\\t/* Let the long error messages wrap in the narrow form. */\\n\\t\\t\\t& .ck-labeled-field-view__error {\\n\\t\\t\\t\\twhite-space: normal;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* Styles for two last buttons in the form (save&cancel, edit&unlink, etc.). */\\n\\t\\t& > .ck-button:nth-last-child(2) {\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& > .ck-button:nth-last-child(1),\\n\\t\\t& > .ck-button:nth-last-child(2) {\\n\\t\\t\\tpadding: var(--ck-spacing-standard);\\n\\t\\t\\tmargin-top: var(--ck-spacing-large);\\n\\t\\t\\tborder-radius: 0;\\n\\n\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\tborder-top: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t\\t&:last-of-type {\\n\\t\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-block-toolbar-button{position:absolute;z-index:var(--ck-z-default)}:root{--ck-color-block-toolbar-button:var(--ck-color-text);--ck-block-toolbar-button-size:var(--ck-font-size-normal)}.ck.ck-block-toolbar-button{color:var(--ck-color-block-toolbar-button);font-size:var(--ck-block-toolbar-size)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/toolbar/blocktoolbar.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/toolbar/blocktoolbar.css\"],\"names\":[],\"mappings\":\"AAKA,4BACC,iBAAkB,CAClB,2BACD,CCHA,MACC,oDAAqD,CACrD,yDACD,CAEA,4BACC,0CAA2C,CAC3C,sCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-block-toolbar-button {\\n\\tposition: absolute;\\n\\tz-index: var(--ck-z-default);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-block-toolbar-button: var(--ck-color-text);\\n\\t--ck-block-toolbar-button-size: var(--ck-font-size-normal);\\n}\\n\\n.ck.ck-block-toolbar-button {\\n\\tcolor: var(--ck-color-block-toolbar-button);\\n\\tfont-size: var(--ck-block-toolbar-size);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-toolbar{align-items:center;display:flex;flex-flow:row nowrap;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-toolbar>.ck-toolbar__items{align-items:center;display:flex;flex-flow:row wrap;flex-grow:1}.ck.ck-toolbar .ck.ck-toolbar__separator{display:inline-block}.ck.ck-toolbar .ck.ck-toolbar__separator:first-child,.ck.ck-toolbar .ck.ck-toolbar__separator:last-child{display:none}.ck.ck-toolbar .ck-toolbar__line-break{flex-basis:100%}.ck.ck-toolbar.ck-toolbar_grouping>.ck-toolbar__items{flex-wrap:nowrap}.ck.ck-toolbar.ck-toolbar_vertical>.ck-toolbar__items{flex-direction:column}.ck.ck-toolbar.ck-toolbar_floating>.ck-toolbar__items{flex-wrap:nowrap}.ck.ck-toolbar>.ck.ck-toolbar__grouped-dropdown>.ck-dropdown__button .ck-dropdown__arrow{display:none}.ck.ck-toolbar{border-radius:0}.ck-rounded-corners .ck.ck-toolbar,.ck.ck-toolbar.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-toolbar{background:var(--ck-color-toolbar-background);border:1px solid var(--ck-color-toolbar-border);padding:0 var(--ck-spacing-small)}.ck.ck-toolbar .ck.ck-toolbar__separator{align-self:stretch;background:var(--ck-color-toolbar-border);margin-bottom:var(--ck-spacing-small);margin-top:var(--ck-spacing-small);min-width:1px;width:1px}.ck.ck-toolbar .ck-toolbar__line-break{height:0}.ck.ck-toolbar>.ck-toolbar__items>:not(.ck-toolbar__line-break){margin-right:var(--ck-spacing-small)}.ck.ck-toolbar>.ck-toolbar__items:empty+.ck.ck-toolbar__separator{display:none}.ck.ck-toolbar>.ck-toolbar__items>:not(.ck-toolbar__line-break),.ck.ck-toolbar>.ck.ck-toolbar__grouped-dropdown{margin-bottom:var(--ck-spacing-small);margin-top:var(--ck-spacing-small)}.ck.ck-toolbar.ck-toolbar_vertical{padding:0}.ck.ck-toolbar.ck-toolbar_vertical>.ck-toolbar__items>.ck{border-radius:0;margin:0;width:100%}.ck.ck-toolbar.ck-toolbar_compact{padding:0}.ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>*{margin:0}.ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>:not(:first-child):not(:last-child){border-radius:0}.ck.ck-toolbar>.ck.ck-toolbar__grouped-dropdown>.ck.ck-button.ck-dropdown__button{padding-left:var(--ck-spacing-tiny)}.ck.ck-toolbar .ck-toolbar__nested-toolbar-dropdown>.ck-dropdown__panel{min-width:auto}.ck.ck-toolbar .ck-toolbar__nested-toolbar-dropdown>.ck-button>.ck-button__label{max-width:7em;width:auto}.ck-toolbar-container .ck.ck-toolbar{border:0}.ck.ck-toolbar[dir=rtl]>.ck-toolbar__items>.ck,[dir=rtl] .ck.ck-toolbar>.ck-toolbar__items>.ck{margin-right:0}.ck.ck-toolbar[dir=rtl]:not(.ck-toolbar_compact)>.ck-toolbar__items>.ck,[dir=rtl] .ck.ck-toolbar:not(.ck-toolbar_compact)>.ck-toolbar__items>.ck{margin-left:var(--ck-spacing-small)}.ck.ck-toolbar[dir=rtl]>.ck-toolbar__items>.ck:last-child,[dir=rtl] .ck.ck-toolbar>.ck-toolbar__items>.ck:last-child{margin-left:0}.ck.ck-toolbar.ck-toolbar_compact[dir=rtl]>.ck-toolbar__items>.ck:first-child,[dir=rtl] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:first-child{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-toolbar.ck-toolbar_compact[dir=rtl]>.ck-toolbar__items>.ck:last-child,[dir=rtl] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:last-child{border-bottom-right-radius:0;border-top-right-radius:0}.ck.ck-toolbar.ck-toolbar_grouping[dir=rtl]>.ck-toolbar__items:not(:empty):not(:only-child),.ck.ck-toolbar[dir=rtl]>.ck.ck-toolbar__separator,[dir=rtl] .ck.ck-toolbar.ck-toolbar_grouping>.ck-toolbar__items:not(:empty):not(:only-child),[dir=rtl] .ck.ck-toolbar>.ck.ck-toolbar__separator{margin-left:var(--ck-spacing-small)}.ck.ck-toolbar[dir=ltr]>.ck-toolbar__items>.ck:last-child,[dir=ltr] .ck.ck-toolbar>.ck-toolbar__items>.ck:last-child{margin-right:0}.ck.ck-toolbar.ck-toolbar_compact[dir=ltr]>.ck-toolbar__items>.ck:first-child,[dir=ltr] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:first-child{border-bottom-right-radius:0;border-top-right-radius:0}.ck.ck-toolbar.ck-toolbar_compact[dir=ltr]>.ck-toolbar__items>.ck:last-child,[dir=ltr] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:last-child{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-toolbar.ck-toolbar_grouping[dir=ltr]>.ck-toolbar__items:not(:empty):not(:only-child),.ck.ck-toolbar[dir=ltr]>.ck.ck-toolbar__separator,[dir=ltr] .ck.ck-toolbar.ck-toolbar_grouping>.ck-toolbar__items:not(:empty):not(:only-child),[dir=ltr] .ck.ck-toolbar>.ck.ck-toolbar__separator{margin-right:var(--ck-spacing-small)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/toolbar/toolbar.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_unselectable.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/toolbar/toolbar.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAOA,eAKC,kBAAmB,CAFnB,YAAa,CACb,oBAAqB,CCFrB,qBAAsB,CACtB,wBAAyB,CACzB,oBAAqB,CACrB,gBD6CD,CA3CC,kCAGC,kBAAmB,CAFnB,YAAa,CACb,kBAAmB,CAEnB,WAED,CAEA,yCACC,oBAWD,CAJC,yGAEC,YACD,CAGD,uCACC,eACD,CAEA,sDACC,gBACD,CAEA,sDACC,qBACD,CAEA,sDACC,gBACD,CAGC,yFACC,YACD,CE/CF,eCGC,eDoGD,CAvGA,qECOE,qCDgGF,CAvGA,eAGC,6CAA8C,CAE9C,+CAAgD,CADhD,iCAmGD,CAhGC,yCACC,kBAAmB,CAGnB,yCAA0C,CAO1C,qCAAsC,CADtC,kCAAmC,CAPnC,aAAc,CADd,SAUD,CAEA,uCACC,QACD,CAGC,gEAEC,oCACD,CAIA,kEACC,YACD,CAGD,gHAIC,qCAAsC,CADtC,kCAED,CAEA,mCAEC,SAaD,CAVC,0DAQC,eAAgB,CAHhB,QAAS,CAHT,UAOD,CAGD,kCAEC,SAWD,CATC,uDAEC,QAMD,CAHC,yFACC,eACD,CASD,kFACC,mCACD,CAMA,wEACC,cACD,CAEA,iFACC,aAAc,CACd,UACD,CAjGF,qCAqGE,QAEF,CAYC,+FACC,cACD,CAEA,iJAEC,mCACD,CAEA,qHACC,aACD,CAIC,6JAEC,2BAA4B,CAD5B,wBAED,CAGA,2JAEC,4BAA6B,CAD7B,yBAED,CASD,8RACC,mCACD,CAWA,qHACC,cACD,CAIC,6JAEC,4BAA6B,CAD7B,yBAED,CAGA,2JAEC,2BAA4B,CAD5B,wBAED,CASD,8RACC,oCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../mixins/_unselectable.css\\\";\\n\\n.ck.ck-toolbar {\\n\\t@mixin ck-unselectable;\\n\\n\\tdisplay: flex;\\n\\tflex-flow: row nowrap;\\n\\talign-items: center;\\n\\n\\t& > .ck-toolbar__items {\\n\\t\\tdisplay: flex;\\n\\t\\tflex-flow: row wrap;\\n\\t\\talign-items: center;\\n\\t\\tflex-grow: 1;\\n\\n\\t}\\n\\n\\t& .ck.ck-toolbar__separator {\\n\\t\\tdisplay: inline-block;\\n\\n\\t\\t/*\\n\\t\\t * A leading or trailing separator makes no sense (separates from nothing on one side).\\n\\t\\t * For instance, it can happen when toolbar items (also separators) are getting grouped one by one and\\n\\t\\t * moved to another toolbar in the dropdown.\\n\\t\\t */\\n\\t\\t&:first-child,\\n\\t\\t&:last-child {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-toolbar__line-break {\\n\\t\\tflex-basis: 100%;\\n\\t}\\n\\n\\t&.ck-toolbar_grouping > .ck-toolbar__items {\\n\\t\\tflex-wrap: nowrap;\\n\\t}\\n\\n\\t&.ck-toolbar_vertical > .ck-toolbar__items {\\n\\t\\tflex-direction: column;\\n\\t}\\n\\n\\t&.ck-toolbar_floating > .ck-toolbar__items {\\n\\t\\tflex-wrap: nowrap;\\n\\t}\\n\\n\\t& > .ck.ck-toolbar__grouped-dropdown {\\n\\t\\t& > .ck-dropdown__button .ck-dropdown__arrow {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Makes element unselectable.\\n */\\n@define-mixin ck-unselectable {\\n\\t-moz-user-select: none;\\n\\t-webkit-user-select: none;\\n\\t-ms-user-select: none;\\n\\tuser-select: none\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-toolbar {\\n\\t@mixin ck-rounded-corners;\\n\\n\\tbackground: var(--ck-color-toolbar-background);\\n\\tpadding: 0 var(--ck-spacing-small);\\n\\tborder: 1px solid var(--ck-color-toolbar-border);\\n\\n\\t& .ck.ck-toolbar__separator {\\n\\t\\talign-self: stretch;\\n\\t\\twidth: 1px;\\n\\t\\tmin-width: 1px;\\n\\t\\tbackground: var(--ck-color-toolbar-border);\\n\\n\\t\\t/*\\n\\t\\t * These margins make the separators look better in balloon toolbars (when aligned with the \\\"tip\\\").\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/7493.\\n\\t\\t */\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\t\\tmargin-bottom: var(--ck-spacing-small);\\n\\t}\\n\\n\\t& .ck-toolbar__line-break {\\n\\t\\theight: 0;\\n\\t}\\n\\n\\t& > .ck-toolbar__items {\\n\\t\\t& > *:not(.ck-toolbar__line-break) {\\n\\t\\t\\t/* (#11) Separate toolbar items. */\\n\\t\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\t}\\n\\n\\t\\t/* Don't display a separator after an empty items container, for instance,\\n\\t\\twhen all items were grouped */\\n\\t\\t&:empty + .ck.ck-toolbar__separator {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-toolbar__items > *:not(.ck-toolbar__line-break),\\n\\t& > .ck.ck-toolbar__grouped-dropdown {\\n\\t\\t/* Make sure items wrapped to the next line have v-spacing */\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\t\\tmargin-bottom: var(--ck-spacing-small);\\n\\t}\\n\\n\\t&.ck-toolbar_vertical {\\n\\t\\t/* Items in a vertical toolbar span the entire width. */\\n\\t\\tpadding: 0;\\n\\n\\t\\t/* Specificity matters here. See https://github.com/ckeditor/ckeditor5-theme-lark/issues/168. */\\n\\t\\t& > .ck-toolbar__items > .ck {\\n\\t\\t\\t/* Items in a vertical toolbar should span the horizontal space. */\\n\\t\\t\\twidth: 100%;\\n\\n\\t\\t\\t/* Items in a vertical toolbar should have no margin. */\\n\\t\\t\\tmargin: 0;\\n\\n\\t\\t\\t/* Items in a vertical toolbar span the entire width so rounded corners are pointless. */\\n\\t\\t\\tborder-radius: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-toolbar_compact {\\n\\t\\t/* No spacing around items. */\\n\\t\\tpadding: 0;\\n\\n\\t\\t& > .ck-toolbar__items > * {\\n\\t\\t\\t/* Compact toolbar items have no spacing between them. */\\n\\t\\t\\tmargin: 0;\\n\\n\\t\\t\\t/* \\\"Middle\\\" children should have no rounded corners. */\\n\\t\\t\\t&:not(:first-child):not(:last-child) {\\n\\t\\t\\t\\tborder-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck.ck-toolbar__grouped-dropdown {\\n\\t\\t/*\\n\\t\\t * Dropdown button has asymmetric padding to fit the arrow.\\n\\t\\t * This button has no arrow so let's revert that padding back to normal.\\n\\t\\t */\\n\\t\\t& > .ck.ck-button.ck-dropdown__button {\\n\\t\\t\\tpadding-left: var(--ck-spacing-tiny);\\n\\t\\t}\\n\\t}\\n\\n\\t/* A drop-down containing the nested toolbar with configured items. */\\n\\t& .ck-toolbar__nested-toolbar-dropdown {\\n\\t\\t/* Prevent empty space in the panel when the dropdown label is visible and long but the toolbar has few items. */\\n\\t\\t& > .ck-dropdown__panel {\\n\\t\\t\\tmin-width: auto;\\n\\t\\t}\\n\\n\\t\\t& > .ck-button > .ck-button__label {\\n\\t\\t\\tmax-width: 7em;\\n\\t\\t\\twidth: auto;\\n\\t\\t}\\n\\t}\\n\\n\\t@nest .ck-toolbar-container & {\\n\\t\\tborder: 0;\\n\\t}\\n}\\n\\n/* stylelint-disable */\\n\\n/*\\n * Styles for RTL toolbars.\\n *\\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own \\\"dir\\\"\\n * because its parent is not controlled by the editor framework.\\n */\\n[dir=\\\"rtl\\\"] .ck.ck-toolbar,\\n.ck.ck-toolbar[dir=\\\"rtl\\\"] {\\n\\t& > .ck-toolbar__items > .ck {\\n\\t\\tmargin-right: 0;\\n\\t}\\n\\n\\t&:not(.ck-toolbar_compact) > .ck-toolbar__items > .ck {\\n\\t\\t/* (#11) Separate toolbar items. */\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n\\n\\t& > .ck-toolbar__items > .ck:last-child {\\n\\t\\tmargin-left: 0;\\n\\t}\\n\\n\\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\\n\\t\\t/* No rounded corners on the right side of the first child. */\\n\\t\\t&:first-child {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t}\\n\\n\\t\\t/* No rounded corners on the left side of the last child. */\\n\\t\\t&:last-child {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\\n\\t& > .ck.ck-toolbar__separator {\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n\\n\\t/* Some spacing between the items and the separator before the grouped items dropdown. */\\n\\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n}\\n\\n/*\\n * Styles for LTR toolbars.\\n *\\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own \\\"dir\\\"\\n * because its parent is not controlled by the editor framework.\\n */\\n[dir=\\\"ltr\\\"] .ck.ck-toolbar,\\n.ck.ck-toolbar[dir=\\\"ltr\\\"] {\\n\\t& > .ck-toolbar__items > .ck:last-child {\\n\\t\\tmargin-right: 0;\\n\\t}\\n\\n\\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\\n\\t\\t/* No rounded corners on the right side of the first child. */\\n\\t\\t&:first-child {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t/* No rounded corners on the left side of the last child. */\\n\\t\\t&:last-child {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\\n\\t& > .ck.ck-toolbar__separator {\\n\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t}\\n\\n\\t/* Some spacing between the items and the separator before the grouped items dropdown. */\\n\\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\\n\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t}\\n}\\n\\n/* stylelint-enable */\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-balloon-panel.ck-tooltip{--ck-balloon-border-width:0px;--ck-balloon-arrow-offset:0px;--ck-balloon-arrow-half-width:4px;--ck-balloon-arrow-height:4px;--ck-color-panel-background:var(--ck-color-tooltip-background);padding:0 var(--ck-spacing-medium);pointer-events:none;z-index:calc(var(--ck-z-modal) + 100)}.ck.ck-balloon-panel.ck-tooltip .ck-tooltip__text{color:var(--ck-color-tooltip-text);font-size:.9em;line-height:1.5}.ck.ck-balloon-panel.ck-tooltip{box-shadow:none}.ck.ck-balloon-panel.ck-tooltip:before{display:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/tooltip/tooltip.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/tooltip/tooltip.css\"],\"names\":[],\"mappings\":\"AAKA,gCCGC,6BAA8B,CAC9B,6BAA8B,CAC9B,iCAAkC,CAClC,6BAA8B,CAC9B,8DAA+D,CAE/D,kCAAmC,CDPnC,mBAAoB,CAEpB,qCACD,CCMC,kDAGC,kCAAmC,CAFnC,cAAe,CACf,eAED,CAbD,gCAgBC,eAMD,CAHC,uCACC,YACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-balloon-panel.ck-tooltip {\\n\\t/* Keep tooltips transparent for any interactions. */\\n\\tpointer-events: none;\\n\\n\\tz-index: calc( var(--ck-z-modal) + 100 );\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n.ck.ck-balloon-panel.ck-tooltip {\\n\\t--ck-balloon-border-width: 0px;\\n\\t--ck-balloon-arrow-offset: 0px;\\n\\t--ck-balloon-arrow-half-width: 4px;\\n\\t--ck-balloon-arrow-height: 4px;\\n\\t--ck-color-panel-background: var(--ck-color-tooltip-background);\\n\\n\\tpadding: 0 var(--ck-spacing-medium);\\n\\n\\t& .ck-tooltip__text {\\n\\t\\tfont-size: .9em;\\n\\t\\tline-height: 1.5;\\n\\t\\tcolor: var(--ck-color-tooltip-text);\\n\\t}\\n\\n\\t/* Reset balloon panel styles */\\n\\tbox-shadow: none;\\n\\n\\t/* Hide the default shadow of the .ck-balloon-panel tip */\\n\\t&::before {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-hidden{display:none!important}.ck-reset_all :not(.ck-reset_all-excluded *),.ck.ck-reset,.ck.ck-reset_all{box-sizing:border-box;height:auto;position:static;width:auto}:root{--ck-z-default:1;--ck-z-modal:calc(var(--ck-z-default) + 999)}.ck-transitions-disabled,.ck-transitions-disabled *{transition:none!important}:root{--ck-color-base-foreground:#fafafa;--ck-color-base-background:#fff;--ck-color-base-border:#ccced1;--ck-color-base-action:#53a336;--ck-color-base-focus:#6cb5f9;--ck-color-base-text:#333;--ck-color-base-active:#2977ff;--ck-color-base-active-focus:#0d65ff;--ck-color-base-error:#db3700;--ck-color-focus-border-coordinates:218,81.8%,56.9%;--ck-color-focus-border:hsl(var(--ck-color-focus-border-coordinates));--ck-color-focus-outer-shadow:#cae1fc;--ck-color-focus-disabled-shadow:rgba(119,186,248,.3);--ck-color-focus-error-shadow:rgba(255,64,31,.3);--ck-color-text:var(--ck-color-base-text);--ck-color-shadow-drop:rgba(0,0,0,.15);--ck-color-shadow-drop-active:rgba(0,0,0,.2);--ck-color-shadow-inner:rgba(0,0,0,.1);--ck-color-button-default-background:transparent;--ck-color-button-default-hover-background:#f0f0f0;--ck-color-button-default-active-background:#f0f0f0;--ck-color-button-default-disabled-background:transparent;--ck-color-button-on-background:#f0f7ff;--ck-color-button-on-hover-background:#dbecff;--ck-color-button-on-active-background:#dbecff;--ck-color-button-on-disabled-background:#f0f2f4;--ck-color-button-on-color:#2977ff;--ck-color-button-action-background:var(--ck-color-base-action);--ck-color-button-action-hover-background:#4d9d30;--ck-color-button-action-active-background:#4d9d30;--ck-color-button-action-disabled-background:#7ec365;--ck-color-button-action-text:var(--ck-color-base-background);--ck-color-button-save:#008a00;--ck-color-button-cancel:#db3700;--ck-color-switch-button-off-background:#939393;--ck-color-switch-button-off-hover-background:#7d7d7d;--ck-color-switch-button-on-background:var(--ck-color-button-action-background);--ck-color-switch-button-on-hover-background:#4d9d30;--ck-color-switch-button-inner-background:var(--ck-color-base-background);--ck-color-switch-button-inner-shadow:rgba(0,0,0,.1);--ck-color-dropdown-panel-background:var(--ck-color-base-background);--ck-color-dropdown-panel-border:var(--ck-color-base-border);--ck-color-input-background:var(--ck-color-base-background);--ck-color-input-border:var(--ck-color-base-border);--ck-color-input-error-border:var(--ck-color-base-error);--ck-color-input-text:var(--ck-color-base-text);--ck-color-input-disabled-background:#f2f2f2;--ck-color-input-disabled-border:var(--ck-color-base-border);--ck-color-input-disabled-text:#757575;--ck-color-list-background:var(--ck-color-base-background);--ck-color-list-button-hover-background:var(--ck-color-button-default-hover-background);--ck-color-list-button-on-background:var(--ck-color-button-on-color);--ck-color-list-button-on-background-focus:var(--ck-color-button-on-color);--ck-color-list-button-on-text:var(--ck-color-base-background);--ck-color-panel-background:var(--ck-color-base-background);--ck-color-panel-border:var(--ck-color-base-border);--ck-color-toolbar-background:var(--ck-color-base-background);--ck-color-toolbar-border:var(--ck-color-base-border);--ck-color-tooltip-background:var(--ck-color-base-text);--ck-color-tooltip-text:var(--ck-color-base-background);--ck-color-engine-placeholder-text:#707070;--ck-color-upload-bar-background:#6cb5f9;--ck-color-link-default:#0000f0;--ck-color-link-selected-background:rgba(31,176,255,.1);--ck-color-link-fake-selection:rgba(31,176,255,.3);--ck-color-highlight-background:#ff0;--ck-disabled-opacity:.5;--ck-focus-outer-shadow-geometry:0 0 0 3px;--ck-focus-outer-shadow:var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-outer-shadow);--ck-focus-disabled-outer-shadow:var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-disabled-shadow);--ck-focus-error-outer-shadow:var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-error-shadow);--ck-focus-ring:1px solid var(--ck-color-focus-border);--ck-font-size-base:13px;--ck-line-height-base:1.84615;--ck-font-face:Helvetica,Arial,Tahoma,Verdana,Sans-Serif;--ck-font-size-tiny:0.7em;--ck-font-size-small:0.75em;--ck-font-size-normal:1em;--ck-font-size-big:1.4em;--ck-font-size-large:1.8em;--ck-ui-component-min-height:2.3em}.ck-reset_all :not(.ck-reset_all-excluded *),.ck.ck-reset,.ck.ck-reset_all{word-wrap:break-word;background:transparent;border:0;margin:0;padding:0;text-decoration:none;transition:none;vertical-align:middle}.ck-reset_all :not(.ck-reset_all-excluded *),.ck.ck-reset_all{border-collapse:collapse;color:var(--ck-color-text);cursor:auto;float:none;font:normal normal normal var(--ck-font-size-base)/var(--ck-line-height-base) var(--ck-font-face);text-align:left;white-space:nowrap}.ck-reset_all .ck-rtl :not(.ck-reset_all-excluded *){text-align:right}.ck-reset_all iframe:not(.ck-reset_all-excluded *){vertical-align:inherit}.ck-reset_all textarea:not(.ck-reset_all-excluded *){white-space:pre-wrap}.ck-reset_all input[type=password]:not(.ck-reset_all-excluded *),.ck-reset_all input[type=text]:not(.ck-reset_all-excluded *),.ck-reset_all textarea:not(.ck-reset_all-excluded *){cursor:text}.ck-reset_all input[type=password][disabled]:not(.ck-reset_all-excluded *),.ck-reset_all input[type=text][disabled]:not(.ck-reset_all-excluded *),.ck-reset_all textarea[disabled]:not(.ck-reset_all-excluded *){cursor:default}.ck-reset_all fieldset:not(.ck-reset_all-excluded *){border:2px groove #dfdee3;padding:10px}.ck-reset_all button:not(.ck-reset_all-excluded *)::-moz-focus-inner{border:0;padding:0}.ck[dir=rtl],.ck[dir=rtl] .ck{text-align:right}:root{--ck-border-radius:2px;--ck-inner-shadow:2px 2px 3px var(--ck-color-shadow-inner) inset;--ck-drop-shadow:0 1px 2px 1px var(--ck-color-shadow-drop);--ck-drop-shadow-active:0 3px 6px 1px var(--ck-color-shadow-drop-active);--ck-spacing-unit:0.6em;--ck-spacing-large:calc(var(--ck-spacing-unit)*1.5);--ck-spacing-standard:var(--ck-spacing-unit);--ck-spacing-medium:calc(var(--ck-spacing-unit)*0.8);--ck-spacing-small:calc(var(--ck-spacing-unit)*0.5);--ck-spacing-tiny:calc(var(--ck-spacing-unit)*0.3);--ck-spacing-extra-tiny:calc(var(--ck-spacing-unit)*0.16)}\", 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All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-z-default: 1;\\n\\t--ck-z-modal: calc( var(--ck-z-default) + 999 );\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class that disables all transitions of the element and its children.\\n */\\n.ck-transitions-disabled,\\n.ck-transitions-disabled * {\\n\\ttransition: none !important;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-base-foreground: \\t\\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 98%);\\n\\t--ck-color-base-background: \\t\\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 100%);\\n\\t--ck-color-base-border: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(220, 6%, 81%);\\n\\t--ck-color-base-action: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(104, 50.2%, 42.5%);\\n\\t--ck-color-base-focus: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(209, 92%, 70%);\\n\\t--ck-color-base-text: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 20%);\\n\\t--ck-color-base-active: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(218.1, 100%, 58%);\\n\\t--ck-color-base-active-focus:\\t\\t\\t\\t\\t\\t\\t\\thsl(218.2, 100%, 52.5%);\\n\\t--ck-color-base-error:\\t\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(15, 100%, 43%);\\n\\n\\t/* -- Generic colors ------------------------------------------------------------------------ */\\n\\n\\t--ck-color-focus-border-coordinates: \\t\\t\\t\\t\\t\\t218, 81.8%, 56.9%;\\n\\t--ck-color-focus-border: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(var(--ck-color-focus-border-coordinates));\\n\\t--ck-color-focus-outer-shadow:\\t\\t\\t\\t\\t\\t\\t\\thsl(212.4, 89.3%, 89%);\\n\\t--ck-color-focus-disabled-shadow:\\t\\t\\t\\t\\t\\t\\thsla(209, 90%, 72%,.3);\\n\\t--ck-color-focus-error-shadow:\\t\\t\\t\\t\\t\\t\\t\\thsla(9,100%,56%,.3);\\n\\t--ck-color-text: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-text);\\n\\t--ck-color-shadow-drop: \\t\\t\\t\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.15);\\n\\t--ck-color-shadow-drop-active:\\t\\t\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.2);\\n\\t--ck-color-shadow-inner: \\t\\t\\t\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.1);\\n\\n\\t/* -- Buttons ------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-button-default-background: \\t\\t\\t\\t\\t\\ttransparent;\\n\\t--ck-color-button-default-hover-background: \\t\\t\\t\\thsl(0, 0%, 94.1%);\\n\\t--ck-color-button-default-active-background: \\t\\t\\t\\thsl(0, 0%, 94.1%);\\n\\t--ck-color-button-default-disabled-background: \\t\\t\\t\\ttransparent;\\n\\n\\t--ck-color-button-on-background: \\t\\t\\t\\t\\t\\t\\thsl(212, 100%, 97.1%);\\n\\t--ck-color-button-on-hover-background: \\t\\t\\t\\t\\t\\thsl(211.7, 100%, 92.9%);\\n\\t--ck-color-button-on-active-background: \\t\\t\\t\\t\\thsl(211.7, 100%, 92.9%);\\n\\t--ck-color-button-on-disabled-background: \\t\\t\\t\\t\\thsl(211, 15%, 95%);\\n\\t--ck-color-button-on-color:\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(218.1, 100%, 58%);\\n\\n\\n\\t--ck-color-button-action-background: \\t\\t\\t\\t\\t\\tvar(--ck-color-base-action);\\n\\t--ck-color-button-action-hover-background: \\t\\t\\t\\t\\thsl(104, 53.2%, 40.2%);\\n\\t--ck-color-button-action-active-background: \\t\\t\\t\\thsl(104, 53.2%, 40.2%);\\n\\t--ck-color-button-action-disabled-background: \\t\\t\\t\\thsl(104, 44%, 58%);\\n\\t--ck-color-button-action-text: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\n\\t--ck-color-button-save: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(120, 100%, 27%);\\n\\t--ck-color-button-cancel: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(15, 100%, 43%);\\n\\n\\t--ck-color-switch-button-off-background:\\t\\t\\t\\t\\thsl(0, 0%, 57.6%);\\n\\t--ck-color-switch-button-off-hover-background:\\t\\t\\t\\thsl(0, 0%, 49%);\\n\\t--ck-color-switch-button-on-background:\\t\\t\\t\\t\\t\\tvar(--ck-color-button-action-background);\\n\\t--ck-color-switch-button-on-hover-background:\\t\\t\\t\\thsl(104, 53.2%, 40.2%);\\n\\t--ck-color-switch-button-inner-background:\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-switch-button-inner-shadow:\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.1);\\n\\n\\t/* -- Dropdown ------------------------------------------------------------------------------ */\\n\\n\\t--ck-color-dropdown-panel-background: \\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-dropdown-panel-border: \\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\n\\t/* -- Input --------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-input-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-input-border: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\t--ck-color-input-error-border:\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-error);\\n\\t--ck-color-input-text: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-text);\\n\\t--ck-color-input-disabled-background: \\t\\t\\t\\t\\t\\thsl(0, 0%, 95%);\\n\\t--ck-color-input-disabled-border: \\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\t--ck-color-input-disabled-text: \\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 46%);\\n\\n\\t/* -- List ---------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-list-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-list-button-hover-background: \\t\\t\\t\\t\\tvar(--ck-color-button-default-hover-background);\\n\\t--ck-color-list-button-on-background: \\t\\t\\t\\t\\t\\tvar(--ck-color-button-on-color);\\n\\t--ck-color-list-button-on-background-focus: \\t\\t\\t\\tvar(--ck-color-button-on-color);\\n\\t--ck-color-list-button-on-text:\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\n\\t/* -- Panel --------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-panel-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-panel-border: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\n\\t/* -- Toolbar ------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-toolbar-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-toolbar-border: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\n\\t/* -- Tooltip ------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-tooltip-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-text);\\n\\t--ck-color-tooltip-text: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\n\\t/* -- Engine -------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-engine-placeholder-text: \\t\\t\\t\\t\\t\\thsl(0, 0%, 44%);\\n\\n\\t/* -- Upload -------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-upload-bar-background:\\t\\t \\t\\t\\t\\t\\thsl(209, 92%, 70%);\\n\\n\\t/* -- Link -------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-link-default:\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(240, 100%, 47%);\\n\\t--ck-color-link-selected-background:\\t\\t\\t\\t\\t\\thsla(201, 100%, 56%, 0.1);\\n\\t--ck-color-link-fake-selection:\\t\\t\\t\\t\\t\\t\\t\\thsla(201, 100%, 56%, 0.3);\\n\\n\\t/* -- Search result highlight ---------------------------------------------------------------- */\\n\\n\\t--ck-color-highlight-background:\\t\\t\\t\\t\\t\\t\\thsl(60, 100%, 50%)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/**\\n\\t * An opacity value of disabled UI item.\\n\\t */\\n\\t--ck-disabled-opacity: .5;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/**\\n\\t * The geometry of the of focused element's outer shadow.\\n\\t */\\n\\t--ck-focus-outer-shadow-geometry: 0 0 0 3px;\\n\\n\\t/**\\n\\t * A visual style of focused element's outer shadow.\\n\\t */\\n\\t--ck-focus-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-outer-shadow);\\n\\n\\t/**\\n\\t * A visual style of focused element's outer shadow (when disabled).\\n\\t */\\n\\t--ck-focus-disabled-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-disabled-shadow);\\n\\n\\t/**\\n\\t * A visual style of focused element's outer shadow (when has errors).\\n\\t */\\n\\t--ck-focus-error-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-error-shadow);\\n\\n\\t/**\\n\\t * A visual style of focused element's border or outline.\\n\\t */\\n\\t--ck-focus-ring: 1px solid var(--ck-color-focus-border);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-font-size-base: 13px;\\n\\t--ck-line-height-base: 1.84615;\\n\\t--ck-font-face: Helvetica, Arial, Tahoma, Verdana, Sans-Serif;\\n\\n\\t--ck-font-size-tiny: 0.7em;\\n\\t--ck-font-size-small: 0.75em;\\n\\t--ck-font-size-normal: 1em;\\n\\t--ck-font-size-big: 1.4em;\\n\\t--ck-font-size-large: 1.8em;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/* This is super-important. This is **manually** adjusted so a button without an icon\\n\\tis never smaller than a button with icon, additionally making sure that text-less buttons\\n\\tare perfect squares. The value is also shared by other components which should stay \\\"in-line\\\"\\n\\twith buttons. */\\n\\t--ck-ui-component-min-height: 2.3em;\\n}\\n\\n/**\\n * Resets an element, ignoring its children.\\n */\\n.ck.ck-reset,\\n.ck.ck-reset_all,\\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\\n\\t/* Do not include inheritable rules here. */\\n\\tmargin: 0;\\n\\tpadding: 0;\\n\\tborder: 0;\\n\\tbackground: transparent;\\n\\ttext-decoration: none;\\n\\tvertical-align: middle;\\n\\ttransition: none;\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/105 */\\n\\tword-wrap: break-word;\\n}\\n\\n/**\\n * Resets an element AND its children.\\n */\\n.ck.ck-reset_all,\\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\\n\\t/* These are rule inherited by all children elements. */\\n\\tborder-collapse: collapse;\\n\\tfont: normal normal normal var(--ck-font-size-base)/var(--ck-line-height-base) var(--ck-font-face);\\n\\tcolor: var(--ck-color-text);\\n\\ttext-align: left;\\n\\twhite-space: nowrap;\\n\\tcursor: auto;\\n\\tfloat: none;\\n}\\n\\n.ck-reset_all {\\n\\t& .ck-rtl *:not(.ck-reset_all-excluded *) {\\n\\t\\ttext-align: right;\\n\\t}\\n\\n\\t& iframe:not(.ck-reset_all-excluded *) {\\n\\t\\t/* For IE */\\n\\t\\tvertical-align: inherit;\\n\\t}\\n\\n\\t& textarea:not(.ck-reset_all-excluded *) {\\n\\t\\twhite-space: pre-wrap;\\n\\t}\\n\\n\\t& textarea:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"text\\\"]:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"password\\\"]:not(.ck-reset_all-excluded *) {\\n\\t\\tcursor: text;\\n\\t}\\n\\n\\t& textarea[disabled]:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"text\\\"][disabled]:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"password\\\"][disabled]:not(.ck-reset_all-excluded *) {\\n\\t\\tcursor: default;\\n\\t}\\n\\n\\t& fieldset:not(.ck-reset_all-excluded *) {\\n\\t\\tpadding: 10px;\\n\\t\\tborder: 2px groove hsl(255, 7%, 88%);\\n\\t}\\n\\n\\t& button:not(.ck-reset_all-excluded *)::-moz-focus-inner {\\n\\t\\t/* See http://stackoverflow.com/questions/5517744/remove-extra-button-spacing-padding-in-firefox */\\n\\t\\tpadding: 0;\\n\\t\\tborder: 0\\n\\t}\\n}\\n\\n/**\\n * Default UI rules for RTL languages.\\n */\\n.ck[dir=\\\"rtl\\\"],\\n.ck[dir=\\\"rtl\\\"] .ck {\\n\\ttext-align: right;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Default border-radius value.\\n */\\n:root{\\n\\t--ck-border-radius: 2px;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/**\\n\\t * A visual style of element's inner shadow (i.e. input).\\n\\t */\\n\\t--ck-inner-shadow: 2px 2px 3px var(--ck-color-shadow-inner) inset;\\n\\n\\t/**\\n\\t * A visual style of element's drop shadow (i.e. panel).\\n\\t */\\n\\t--ck-drop-shadow: 0 1px 2px 1px var(--ck-color-shadow-drop);\\n\\n\\t/**\\n\\t * A visual style of element's active shadow (i.e. comment or suggestion).\\n\\t */\\n\\t--ck-drop-shadow-active: 0 3px 6px 1px var(--ck-color-shadow-drop-active);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-spacing-unit: \\t\\t\\t\\t\\t\\t0.6em;\\n\\t--ck-spacing-large: \\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 1.5);\\n\\t--ck-spacing-standard: \\t\\t\\t\\t\\tvar(--ck-spacing-unit);\\n\\t--ck-spacing-medium: \\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.8);\\n\\t--ck-spacing-small: \\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.5);\\n\\t--ck-spacing-tiny: \\t\\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.3);\\n\\t--ck-spacing-extra-tiny: \\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.16);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-resizer:var(--ck-color-focus-border);--ck-color-resizer-tooltip-background:#262626;--ck-color-resizer-tooltip-text:#f2f2f2;--ck-resizer-border-radius:var(--ck-border-radius);--ck-resizer-tooltip-offset:10px;--ck-resizer-tooltip-height:calc(var(--ck-spacing-small)*2 + 10px)}.ck .ck-widget,.ck .ck-widget.ck-widget_with-selection-handle{position:relative}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{position:absolute}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon{display:block}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle,.ck .ck-widget.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle{visibility:visible}.ck .ck-size-view{background:var(--ck-color-resizer-tooltip-background);border:1px solid var(--ck-color-resizer-tooltip-text);border-radius:var(--ck-resizer-border-radius);color:var(--ck-color-resizer-tooltip-text);display:block;font-size:var(--ck-font-size-tiny);height:var(--ck-resizer-tooltip-height);line-height:var(--ck-resizer-tooltip-height);padding:0 var(--ck-spacing-small)}.ck .ck-size-view.ck-orientation-above-center,.ck .ck-size-view.ck-orientation-bottom-left,.ck .ck-size-view.ck-orientation-bottom-right,.ck .ck-size-view.ck-orientation-top-left,.ck .ck-size-view.ck-orientation-top-right{position:absolute}.ck .ck-size-view.ck-orientation-top-left{left:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-top-right{right:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-right{bottom:var(--ck-resizer-tooltip-offset);right:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-left{bottom:var(--ck-resizer-tooltip-offset);left:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-above-center{left:50%;top:calc(var(--ck-resizer-tooltip-height)*-1);transform:translate(-50%)}:root{--ck-widget-outline-thickness:3px;--ck-widget-handler-icon-size:16px;--ck-widget-handler-animation-duration:200ms;--ck-widget-handler-animation-curve:ease;--ck-color-widget-blurred-border:#dedede;--ck-color-widget-hover-border:#ffc83d;--ck-color-widget-editable-focus-background:var(--ck-color-base-background);--ck-color-widget-drag-handler-icon-color:var(--ck-color-base-background)}.ck .ck-widget{outline-color:transparent;outline-style:solid;outline-width:var(--ck-widget-outline-thickness);transition:outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_selected,.ck .ck-widget.ck-widget_selected:hover{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border)}.ck .ck-widget:hover{outline-color:var(--ck-color-widget-hover-border)}.ck .ck-editor__nested-editable{border:1px solid transparent}.ck .ck-editor__nested-editable.ck-editor__nested-editable_focused,.ck .ck-editor__nested-editable:focus{background-color:var(--ck-color-widget-editable-focus-background);border:var(--ck-focus-ring);box-shadow:var(--ck-inner-shadow),0 0;outline:none}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{background-color:transparent;border-radius:var(--ck-border-radius) var(--ck-border-radius) 0 0;box-sizing:border-box;left:calc(0px - var(--ck-widget-outline-thickness));opacity:0;padding:4px;top:0;transform:translateY(-100%);transition:background-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),visibility var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon{color:var(--ck-color-widget-drag-handler-icon-color);height:var(--ck-widget-handler-icon-size);width:var(--ck-widget-handler-icon-size)}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon .ck-icon__selected-indicator{opacity:0;transition:opacity .3s var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle:hover .ck-icon .ck-icon__selected-indicator{opacity:1}.ck .ck-widget.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle{background-color:var(--ck-color-widget-hover-border);opacity:1}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected:hover>.ck-widget__selection-handle,.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle{background-color:var(--ck-color-focus-border);opacity:1}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected:hover>.ck-widget__selection-handle .ck-icon .ck-icon__selected-indicator,.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle .ck-icon .ck-icon__selected-indicator{opacity:1}.ck[dir=rtl] .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{left:auto;right:calc(0px - var(--ck-widget-outline-thickness))}.ck.ck-editor__editable.ck-read-only .ck-widget{transition:none}.ck.ck-editor__editable.ck-read-only .ck-widget:not(.ck-widget_selected){--ck-widget-outline-thickness:0px}.ck.ck-editor__editable.ck-read-only .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle,.ck.ck-editor__editable.ck-read-only .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle:hover{background:var(--ck-color-widget-blurred-border)}.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected:hover{outline-color:var(--ck-color-widget-blurred-border)}.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle:hover,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle>.ck-widget__selection-handle,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle>.ck-widget__selection-handle:hover{background:var(--ck-color-widget-blurred-border)}.ck.ck-editor__editable blockquote>.ck-widget.ck-widget_with-selection-handle:first-child,.ck.ck-editor__editable>.ck-widget.ck-widget_with-selection-handle:first-child{margin-top:calc(1em + var(--ck-widget-handler-icon-size))}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-widget/theme/widget.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-widget/widget.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,+CAAgD,CAChD,6CAAsD,CACtD,uCAAgD,CAEhD,kDAAmD,CACnD,gCAAiC,CACjC,kEACD,CAOA,8DAEC,iBAqBD,CAnBC,4EACC,iBAOD,CALC,qFAGC,aACD,CASD,iLACC,kBACD,CAGD,kBACC,qDAAsD,CAEtD,qDAAsD,CACtD,6CAA8C,CAF9C,0CAA2C,CAI3C,aAAc,CADd,kCAAmC,CAGnC,uCAAwC,CACxC,4CAA6C,CAF7C,iCAsCD,CAlCC,8NAKC,iBACD,CAEA,0CAEC,qCAAsC,CADtC,oCAED,CAEA,2CAEC,sCAAuC,CADvC,oCAED,CAEA,8CACC,uCAAwC,CACxC,sCACD,CAEA,6CACC,uCAAwC,CACxC,qCACD,CAGA,8CAEC,QAAS,CADT,6CAAgD,CAEhD,yBACD,CCjFD,MACC,iCAAkC,CAClC,kCAAmC,CACnC,4CAA6C,CAC7C,wCAAyC,CAEzC,wCAAiD,CACjD,sCAAkD,CAClD,2EAA4E,CAC5E,yEACD,CAEA,eAGC,yBAA0B,CAD1B,mBAAoB,CADpB,gDAAiD,CAGjD,6GAUD,CARC,0EAEC,6EACD,CAEA,qBACC,iDACD,CAGD,gCACC,4BAWD,CAPC,yGAKC,iEAAkE,CCnCnE,2BAA2B,CCF3B,qCAA8B,CDC9B,YDqCA,CAIA,4EAKC,4BAA6B,CAa7B,iEAAkE,CAhBlE,qBAAsB,CAoBtB,mDAAoD,CAhBpD,SAAU,CALV,WAAY,CAsBZ,KAAM,CAFN,2BAA4B,CAT5B,6SAgCD,CAnBC,qFAIC,oDAAqD,CADrD,yCAA0C,CAD1C,wCAWD,CANC,kHACC,SAAU,CAGV,+DACD,CAID,wHACC,SACD,CAID,kFAEC,oDAAqD,CADrD,SAED,CAKC,oMAEC,6CAA8C,CAD9C,SAOD,CAHC,gRACC,SACD,CAOH,qFACC,SAAU,CACV,oDACD,CAGA,gDAEC,eAkBD,CAhBC,yEAOC,iCACD,CAGC,gOAEC,gDACD,CAOD,wIAEC,mDAQD,CALE,ghBAEC,gDACD,CAKH,yKAOC,yDACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-resizer: var(--ck-color-focus-border);\\n\\t--ck-color-resizer-tooltip-background: hsl(0, 0%, 15%);\\n\\t--ck-color-resizer-tooltip-text: hsl(0, 0%, 95%);\\n\\n\\t--ck-resizer-border-radius: var(--ck-border-radius);\\n\\t--ck-resizer-tooltip-offset: 10px;\\n\\t--ck-resizer-tooltip-height: calc(var(--ck-spacing-small) * 2 + 10px);\\n}\\n\\n.ck .ck-widget {\\n\\t/* This is neccessary for type around UI to be positioned properly. */\\n\\tposition: relative;\\n}\\n\\n.ck .ck-widget.ck-widget_with-selection-handle {\\n\\t/* Make the widget wrapper a relative positioning container for the drag handle. */\\n\\tposition: relative;\\n\\n\\t& .ck-widget__selection-handle {\\n\\t\\tposition: absolute;\\n\\n\\t\\t& .ck-icon {\\n\\t\\t\\t/* Make sure the icon in not a subject to font-size or line-height to avoid\\n\\t\\t\\tunnecessary spacing around it. */\\n\\t\\t\\tdisplay: block;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Show the selection handle on mouse hover over the widget, but not for nested widgets. */\\n\\t&:hover > .ck-widget__selection-handle {\\n\\t\\tvisibility: visible;\\n\\t}\\n\\n\\t/* Show the selection handle when the widget is selected, but not for nested widgets. */\\n\\t&.ck-widget_selected > .ck-widget__selection-handle {\\n\\t\\tvisibility: visible;\\n\\t}\\n}\\n\\n.ck .ck-size-view {\\n\\tbackground: var(--ck-color-resizer-tooltip-background);\\n\\tcolor: var(--ck-color-resizer-tooltip-text);\\n\\tborder: 1px solid var(--ck-color-resizer-tooltip-text);\\n\\tborder-radius: var(--ck-resizer-border-radius);\\n\\tfont-size: var(--ck-font-size-tiny);\\n\\tdisplay: block;\\n\\tpadding: 0 var(--ck-spacing-small);\\n\\theight: var(--ck-resizer-tooltip-height);\\n\\tline-height: var(--ck-resizer-tooltip-height);\\n\\n\\t&.ck-orientation-top-left,\\n\\t&.ck-orientation-top-right,\\n\\t&.ck-orientation-bottom-right,\\n\\t&.ck-orientation-bottom-left,\\n\\t&.ck-orientation-above-center {\\n\\t\\tposition: absolute;\\n\\t}\\n\\n\\t&.ck-orientation-top-left {\\n\\t\\ttop: var(--ck-resizer-tooltip-offset);\\n\\t\\tleft: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t&.ck-orientation-top-right {\\n\\t\\ttop: var(--ck-resizer-tooltip-offset);\\n\\t\\tright: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t&.ck-orientation-bottom-right {\\n\\t\\tbottom: var(--ck-resizer-tooltip-offset);\\n\\t\\tright: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t&.ck-orientation-bottom-left {\\n\\t\\tbottom: var(--ck-resizer-tooltip-offset);\\n\\t\\tleft: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t/* Class applied if the widget is too small to contain the size label */\\n\\t&.ck-orientation-above-center {\\n\\t\\ttop: calc(var(--ck-resizer-tooltip-height) * -1);\\n\\t\\tleft: 50%;\\n\\t\\ttransform: translate(-50%);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../mixins/_focus.css\\\";\\n@import \\\"../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-widget-outline-thickness: 3px;\\n\\t--ck-widget-handler-icon-size: 16px;\\n\\t--ck-widget-handler-animation-duration: 200ms;\\n\\t--ck-widget-handler-animation-curve: ease;\\n\\n\\t--ck-color-widget-blurred-border: hsl(0, 0%, 87%);\\n\\t--ck-color-widget-hover-border: hsl(43, 100%, 62%);\\n\\t--ck-color-widget-editable-focus-background: var(--ck-color-base-background);\\n\\t--ck-color-widget-drag-handler-icon-color: var(--ck-color-base-background);\\n}\\n\\n.ck .ck-widget {\\n\\toutline-width: var(--ck-widget-outline-thickness);\\n\\toutline-style: solid;\\n\\toutline-color: transparent;\\n\\ttransition: outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\\n\\n\\t&.ck-widget_selected,\\n\\t&.ck-widget_selected:hover {\\n\\t\\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border);\\n\\t}\\n\\n\\t&:hover {\\n\\t\\toutline-color: var(--ck-color-widget-hover-border);\\n\\t}\\n}\\n\\n.ck .ck-editor__nested-editable {\\n\\tborder: 1px solid transparent;\\n\\n\\t/* The :focus style is applied before .ck-editor__nested-editable_focused class is rendered in the view.\\n\\tThese styles show a different border for a blink of an eye, so `:focus` need to have same styles applied. */\\n\\t&.ck-editor__nested-editable_focused,\\n\\t&:focus {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-inner-shadow);\\n\\n\\t\\tbackground-color: var(--ck-color-widget-editable-focus-background);\\n\\t}\\n}\\n\\n.ck .ck-widget.ck-widget_with-selection-handle {\\n\\t& .ck-widget__selection-handle {\\n\\t\\tpadding: 4px;\\n\\t\\tbox-sizing: border-box;\\n\\n\\t\\t/* Background and opacity will be animated as the handler shows up or the widget gets selected. */\\n\\t\\tbackground-color: transparent;\\n\\t\\topacity: 0;\\n\\n\\t\\t/* Transition:\\n\\t\\t   * background-color for the .ck-widget_selected state change,\\n\\t\\t   * visibility for hiding the handler,\\n\\t\\t   * opacity for the proper look of the icon when the handler disappears. */\\n\\t\\ttransition:\\n\\t\\t\\tbackground-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\\n\\t\\t\\tvisibility var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\\n\\t\\t\\topacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\\n\\n\\t\\t/* Make only top corners round. */\\n\\t\\tborder-radius: var(--ck-border-radius) var(--ck-border-radius) 0 0;\\n\\n\\t\\t/* Place the drag handler outside the widget wrapper. */\\n\\t\\ttransform: translateY(-100%);\\n\\t\\tleft: calc(0px - var(--ck-widget-outline-thickness));\\n\\t\\ttop: 0;\\n\\n\\t\\t& .ck-icon {\\n\\t\\t\\t/* Make sure the dimensions of the icon are independent of the fon-size of the content. */\\n\\t\\t\\twidth: var(--ck-widget-handler-icon-size);\\n\\t\\t\\theight: var(--ck-widget-handler-icon-size);\\n\\t\\t\\tcolor: var(--ck-color-widget-drag-handler-icon-color);\\n\\n\\t\\t\\t/* The \\\"selected\\\" part of the icon is invisible by default */\\n\\t\\t\\t& .ck-icon__selected-indicator {\\n\\t\\t\\t\\topacity: 0;\\n\\n\\t\\t\\t\\t/* Note: The animation is longer on purpose. Simply feels better. */\\n\\t\\t\\t\\ttransition: opacity 300ms var(--ck-widget-handler-animation-curve);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* Advertise using the look of the icon that once clicked the handler, the widget will be selected. */\\n\\t\\t&:hover .ck-icon .ck-icon__selected-indicator {\\n\\t\\t\\topacity: 1;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Show the selection handler on mouse hover over the widget, but not for nested widgets. */\\n\\t&:hover > .ck-widget__selection-handle {\\n\\t\\topacity: 1;\\n\\t\\tbackground-color: var(--ck-color-widget-hover-border);\\n\\t}\\n\\n\\t/* Show the selection handler when the widget is selected, but not for nested widgets. */\\n\\t&.ck-widget_selected,\\n\\t&.ck-widget_selected:hover {\\n\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\topacity: 1;\\n\\t\\t\\tbackground-color: var(--ck-color-focus-border);\\n\\n\\t\\t\\t/* When the widget is selected, notify the user using the proper look of the icon. */\\n\\t\\t\\t& .ck-icon .ck-icon__selected-indicator {\\n\\t\\t\\t\\topacity: 1;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n/* In a RTL environment, align the selection handler to the right side of the widget */\\n/* stylelint-disable-next-line no-descending-specificity */\\n.ck[dir=\\\"rtl\\\"] .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle {\\n\\tleft: auto;\\n\\tright: calc(0px - var(--ck-widget-outline-thickness));\\n}\\n\\n/* https://github.com/ckeditor/ckeditor5/issues/6415 */\\n.ck.ck-editor__editable.ck-read-only .ck-widget {\\n\\t/* Prevent the :hover outline from showing up because of the used outline-color transition. */\\n\\ttransition: none;\\n\\n\\t&:not(.ck-widget_selected) {\\n\\t\\t/* Disable visual effects of hover/active widget when CKEditor is in readOnly mode.\\n\\t\\t * See: https://github.com/ckeditor/ckeditor5/issues/1261\\n\\t\\t *\\n\\t\\t * Leave the unit because this custom property is used in calc() by other features.\\n\\t\\t * See: https://github.com/ckeditor/ckeditor5/issues/6775\\n\\t\\t */\\n\\t\\t--ck-widget-outline-thickness: 0px;\\n\\t}\\n\\n\\t&.ck-widget_with-selection-handle {\\n\\t\\t& .ck-widget__selection-handle,\\n\\t\\t& .ck-widget__selection-handle:hover {\\n\\t\\t\\tbackground: var(--ck-color-widget-blurred-border);\\n\\t\\t}\\n\\t}\\n}\\n\\n/* Style the widget when it's selected but the editable it belongs to lost focus. */\\n/* stylelint-disable-next-line no-descending-specificity */\\n.ck.ck-editor__editable.ck-blurred .ck-widget {\\n\\t&.ck-widget_selected,\\n\\t&.ck-widget_selected:hover {\\n\\t\\toutline-color: var(--ck-color-widget-blurred-border);\\n\\n\\t\\t&.ck-widget_with-selection-handle {\\n\\t\\t\\t& > .ck-widget__selection-handle,\\n\\t\\t\\t& > .ck-widget__selection-handle:hover {\\n\\t\\t\\t\\tbackground: var(--ck-color-widget-blurred-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-editor__editable > .ck-widget.ck-widget_with-selection-handle:first-child,\\n.ck.ck-editor__editable blockquote > .ck-widget.ck-widget_with-selection-handle:first-child {\\n\\t/* Do not crop selection handler if a widget is a first-child in the blockquote or in the root editable.\\n\\tIn fact, anything with overflow: hidden.\\n\\thttps://github.com/ckeditor/ckeditor5-block-quote/issues/28\\n\\thttps://github.com/ckeditor/ckeditor5-widget/issues/44\\n\\thttps://github.com/ckeditor/ckeditor5-widget/issues/66 */\\n\\tmargin-top: calc(1em + var(--ck-widget-handler-icon-size));\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-widget_with-resizer{position:relative}.ck .ck-widget__resizer{display:none;left:0;pointer-events:none;position:absolute;top:0}.ck-focused .ck-widget_with-resizer.ck-widget_selected>.ck-widget__resizer{display:block}.ck .ck-widget__resizer__handle{pointer-events:all;position:absolute}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-right,.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-left{cursor:nwse-resize}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-left,.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-right{cursor:nesw-resize}:root{--ck-resizer-size:10px;--ck-resizer-offset:calc(var(--ck-resizer-size)/-2 - 2px);--ck-resizer-border-width:1px}.ck .ck-widget__resizer{outline:1px solid var(--ck-color-resizer)}.ck .ck-widget__resizer__handle{background:var(--ck-color-focus-border);border:var(--ck-resizer-border-width) solid #fff;border-radius:var(--ck-resizer-border-radius);height:var(--ck-resizer-size);width:var(--ck-resizer-size)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-left{left:var(--ck-resizer-offset);top:var(--ck-resizer-offset)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-right{right:var(--ck-resizer-offset);top:var(--ck-resizer-offset)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-right{bottom:var(--ck-resizer-offset);right:var(--ck-resizer-offset)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-left{bottom:var(--ck-resizer-offset);left:var(--ck-resizer-offset)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-widget/theme/widgetresize.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-widget/widgetresize.css\"],\"names\":[],\"mappings\":\"AAKA,4BAEC,iBACD,CAEA,wBACC,YAAa,CAMb,MAAO,CAFP,mBAAoB,CAHpB,iBAAkB,CAMlB,KACD,CAGC,2EACC,aACD,CAGD,gCAIC,kBAAmB,CAHnB,iBAcD,CATC,4IAEC,kBACD,CAEA,4IAEC,kBACD,CCpCD,MACC,sBAAuB,CAGvB,yDAAiE,CACjE,6BACD,CAEA,wBACC,yCACD,CAEA,gCAGC,uCAAwC,CACxC,gDAA6D,CAC7D,6CAA8C,CAH9C,6BAA8B,CAD9B,4BAyBD,CAnBC,oEAEC,6BAA8B,CAD9B,4BAED,CAEA,qEAEC,8BAA+B,CAD/B,4BAED,CAEA,wEACC,+BAAgC,CAChC,8BACD,CAEA,uEACC,+BAAgC,CAChC,6BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-widget_with-resizer {\\n\\t/* Make the widget wrapper a relative positioning container for the drag handle. */\\n\\tposition: relative;\\n}\\n\\n.ck .ck-widget__resizer {\\n\\tdisplay: none;\\n\\tposition: absolute;\\n\\n\\t/* The wrapper itself should not interfere with the pointer device, only the handles should. */\\n\\tpointer-events: none;\\n\\n\\tleft: 0;\\n\\ttop: 0;\\n}\\n\\n.ck-focused .ck-widget_with-resizer.ck-widget_selected {\\n\\t& > .ck-widget__resizer {\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\\n.ck .ck-widget__resizer__handle {\\n\\tposition: absolute;\\n\\n\\t/* Resizers are the only UI elements that should interfere with a pointer device. */\\n\\tpointer-events: all;\\n\\n\\t&.ck-widget__resizer__handle-top-left,\\n\\t&.ck-widget__resizer__handle-bottom-right {\\n\\t\\tcursor: nwse-resize;\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-top-right,\\n\\t&.ck-widget__resizer__handle-bottom-left {\\n\\t\\tcursor: nesw-resize;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-resizer-size: 10px;\\n\\n\\t/* Set the resizer with a 50% offset. */\\n\\t--ck-resizer-offset: calc( ( var(--ck-resizer-size) / -2 ) - 2px);\\n\\t--ck-resizer-border-width: 1px;\\n}\\n\\n.ck .ck-widget__resizer {\\n\\toutline: 1px solid var(--ck-color-resizer);\\n}\\n\\n.ck .ck-widget__resizer__handle {\\n\\twidth: var(--ck-resizer-size);\\n\\theight: var(--ck-resizer-size);\\n\\tbackground: var(--ck-color-focus-border);\\n\\tborder: var(--ck-resizer-border-width) solid hsl(0, 0%, 100%);\\n\\tborder-radius: var(--ck-resizer-border-radius);\\n\\n\\t&.ck-widget__resizer__handle-top-left {\\n\\t\\ttop: var(--ck-resizer-offset);\\n\\t\\tleft: var(--ck-resizer-offset);\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-top-right {\\n\\t\\ttop: var(--ck-resizer-offset);\\n\\t\\tright: var(--ck-resizer-offset);\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-bottom-right {\\n\\t\\tbottom: var(--ck-resizer-offset);\\n\\t\\tright: var(--ck-resizer-offset);\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-bottom-left {\\n\\t\\tbottom: var(--ck-resizer-offset);\\n\\t\\tleft: var(--ck-resizer-offset);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-widget .ck-widget__type-around__button{display:block;overflow:hidden;position:absolute;z-index:var(--ck-z-default)}.ck .ck-widget .ck-widget__type-around__button svg{left:50%;position:absolute;top:50%;z-index:calc(var(--ck-z-default) + 2)}.ck .ck-widget .ck-widget__type-around__button.ck-widget__type-around__button_before{left:min(10%,30px);top:calc(var(--ck-widget-outline-thickness)*-.5);transform:translateY(-50%)}.ck .ck-widget .ck-widget__type-around__button.ck-widget__type-around__button_after{bottom:calc(var(--ck-widget-outline-thickness)*-.5);right:min(10%,30px);transform:translateY(50%)}.ck .ck-widget.ck-widget_selected>.ck-widget__type-around>.ck-widget__type-around__button:after,.ck .ck-widget>.ck-widget__type-around>.ck-widget__type-around__button:hover:after{content:\\\"\\\";display:block;left:1px;position:absolute;top:1px;z-index:calc(var(--ck-z-default) + 1)}.ck .ck-widget>.ck-widget__type-around>.ck-widget__type-around__fake-caret{display:none;left:0;position:absolute;right:0}.ck .ck-widget:hover>.ck-widget__type-around>.ck-widget__type-around__fake-caret{left:calc(var(--ck-widget-outline-thickness)*-1);right:calc(var(--ck-widget-outline-thickness)*-1)}.ck .ck-widget.ck-widget_type-around_show-fake-caret_before>.ck-widget__type-around>.ck-widget__type-around__fake-caret{display:block;top:calc(var(--ck-widget-outline-thickness)*-1 - 1px)}.ck .ck-widget.ck-widget_type-around_show-fake-caret_after>.ck-widget__type-around>.ck-widget__type-around__fake-caret{bottom:calc(var(--ck-widget-outline-thickness)*-1 - 1px);display:block}.ck.ck-editor__editable.ck-read-only .ck-widget__type-around,.ck.ck-editor__editable.ck-restricted-editing_mode_restricted .ck-widget__type-around,.ck.ck-editor__editable.ck-widget__type-around_disabled .ck-widget__type-around{display:none}:root{--ck-widget-type-around-button-size:20px;--ck-color-widget-type-around-button-active:var(--ck-color-focus-border);--ck-color-widget-type-around-button-hover:var(--ck-color-widget-hover-border);--ck-color-widget-type-around-button-blurred-editable:var(--ck-color-widget-blurred-border);--ck-color-widget-type-around-button-radar-start-alpha:0;--ck-color-widget-type-around-button-radar-end-alpha:.3;--ck-color-widget-type-around-button-icon:var(--ck-color-base-background)}.ck .ck-widget .ck-widget__type-around__button{background:var(--ck-color-widget-type-around-button);border-radius:100px;height:var(--ck-widget-type-around-button-size);opacity:0;pointer-events:none;transition:opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),background var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);width:var(--ck-widget-type-around-button-size)}.ck .ck-widget .ck-widget__type-around__button svg{height:8px;margin-top:1px;transform:translate(-50%,-50%);transition:transform .5s ease;width:10px}.ck .ck-widget .ck-widget__type-around__button svg *{stroke-dasharray:10;stroke-dashoffset:0;fill:none;stroke:var(--ck-color-widget-type-around-button-icon);stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round}.ck .ck-widget .ck-widget__type-around__button svg line{stroke-dasharray:7}.ck .ck-widget .ck-widget__type-around__button:hover{animation:ck-widget-type-around-button-sonar 1s ease infinite}.ck .ck-widget .ck-widget__type-around__button:hover svg polyline{animation:ck-widget-type-around-arrow-dash 2s linear}.ck .ck-widget .ck-widget__type-around__button:hover svg line{animation:ck-widget-type-around-arrow-tip-dash 2s linear}.ck .ck-widget.ck-widget_selected>.ck-widget__type-around>.ck-widget__type-around__button,.ck .ck-widget:hover>.ck-widget__type-around>.ck-widget__type-around__button{opacity:1;pointer-events:auto}.ck 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linear infinite normal forwards;background:var(--ck-color-base-text);height:1px;outline:1px solid hsla(0,0%,100%,.5);pointer-events:none}.ck .ck-widget.ck-widget_selected.ck-widget_type-around_show-fake-caret_after,.ck .ck-widget.ck-widget_selected.ck-widget_type-around_show-fake-caret_before{outline-color:transparent}.ck .ck-widget.ck-widget_type-around_show-fake-caret_after.ck-widget_selected:hover,.ck .ck-widget.ck-widget_type-around_show-fake-caret_before.ck-widget_selected:hover{outline-color:var(--ck-color-widget-hover-border)}.ck .ck-widget.ck-widget_type-around_show-fake-caret_after>.ck-widget__type-around>.ck-widget__type-around__button,.ck .ck-widget.ck-widget_type-around_show-fake-caret_before>.ck-widget__type-around>.ck-widget__type-around__button{opacity:0;pointer-events:none}.ck .ck-widget.ck-widget_type-around_show-fake-caret_after.ck-widget_selected.ck-widget_with-resizer>.ck-widget__resizer,.ck 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* Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-widget {\\n\\t/*\\n\\t * Styles of the type around buttons\\n\\t */\\n\\t& .ck-widget__type-around__button {\\n\\t\\tdisplay: block;\\n\\t\\tposition: absolute;\\n\\t\\toverflow: hidden;\\n\\t\\tz-index: var(--ck-z-default);\\n\\n\\t\\t& svg {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\ttop: 50%;\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tz-index: calc(var(--ck-z-default) + 2);\\n\\t\\t}\\n\\n\\t\\t&.ck-widget__type-around__button_before {\\n\\t\\t\\t/* Place it in the middle of the outline */\\n\\t\\t\\ttop: calc(-0.5 * var(--ck-widget-outline-thickness));\\n\\t\\t\\tleft: min(10%, 30px);\\n\\n\\t\\t\\ttransform: translateY(-50%);\\n\\t\\t}\\n\\n\\t\\t&.ck-widget__type-around__button_after {\\n\\t\\t\\t/* Place it in the middle of the outline */\\n\\t\\t\\tbottom: calc(-0.5 * var(--ck-widget-outline-thickness));\\n\\t\\t\\tright: min(10%, 30px);\\n\\n\\t\\t\\ttransform: translateY(50%);\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the buttons when:\\n\\t * - the widget is selected,\\n\\t * - or the button is being hovered (regardless of the widget state).\\n\\t */\\n\\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\\n\\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\\n\\t\\t&::after {\\n\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\tdisplay: block;\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\ttop: 1px;\\n\\t\\t\\tleft: 1px;\\n\\t\\t\\tz-index: calc(var(--ck-z-default) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" which is displayed when the user navigates using the keyboard.\\n\\t */\\n\\t& > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\tdisplay: none;\\n\\t\\tposition: absolute;\\n\\t\\tleft: 0;\\n\\t\\tright: 0;\\n\\t}\\n\\n\\t/*\\n\\t * When the widget is hovered the \\\"fake caret\\\" would normally be narrower than the\\n\\t * extra outline displayed around the widget. Let's extend the \\\"fake caret\\\" to match\\n\\t * the full width of the widget.\\n\\t */\\n\\t&:hover > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\tleft: calc( -1 * var(--ck-widget-outline-thickness) );\\n\\t\\tright: calc( -1 * var(--ck-widget-outline-thickness) );\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" when it should be displayed before the widget (backward keyboard navigation).\\n\\t */\\n\\t&.ck-widget_type-around_show-fake-caret_before > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\ttop: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\\n\\t\\tdisplay: block;\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" when it should be displayed after the widget (forward keyboard navigation).\\n\\t */\\n\\t&.ck-widget_type-around_show-fake-caret_after > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\tbottom: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\\n/*\\n * Integration with the read-only mode of the editor.\\n */\\n.ck.ck-editor__editable.ck-read-only .ck-widget__type-around {\\n\\tdisplay: none;\\n}\\n\\n/*\\n * Integration with the restricted editing mode (feature) of the editor.\\n */\\n.ck.ck-editor__editable.ck-restricted-editing_mode_restricted .ck-widget__type-around {\\n\\tdisplay: none;\\n}\\n\\n/*\\n * Integration with the #isEnabled property of the WidgetTypeAround plugin.\\n */\\n.ck.ck-editor__editable.ck-widget__type-around_disabled .ck-widget__type-around {\\n\\tdisplay: none;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-widget-type-around-button-size: 20px;\\n\\t--ck-color-widget-type-around-button-active: var(--ck-color-focus-border);\\n\\t--ck-color-widget-type-around-button-hover: var(--ck-color-widget-hover-border);\\n\\t--ck-color-widget-type-around-button-blurred-editable: var(--ck-color-widget-blurred-border);\\n\\t--ck-color-widget-type-around-button-radar-start-alpha: 0;\\n\\t--ck-color-widget-type-around-button-radar-end-alpha: .3;\\n\\t--ck-color-widget-type-around-button-icon: var(--ck-color-base-background);\\n}\\n\\n@define-mixin ck-widget-type-around-button-visible {\\n\\topacity: 1;\\n\\tpointer-events: auto;\\n}\\n\\n@define-mixin ck-widget-type-around-button-hidden {\\n\\topacity: 0;\\n\\tpointer-events: none;\\n}\\n\\n.ck .ck-widget {\\n\\t/*\\n\\t * Styles of the type around buttons\\n\\t */\\n\\t& .ck-widget__type-around__button {\\n\\t\\twidth: var(--ck-widget-type-around-button-size);\\n\\t\\theight: var(--ck-widget-type-around-button-size);\\n\\t\\tbackground: var(--ck-color-widget-type-around-button);\\n\\t\\tborder-radius: 100px;\\n\\t\\ttransition: opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve), background var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\\n\\n\\t\\t@mixin ck-widget-type-around-button-hidden;\\n\\n\\t\\t& svg {\\n\\t\\t\\twidth: 10px;\\n\\t\\t\\theight: 8px;\\n\\t\\t\\ttransform: translate(-50%,-50%);\\n\\t\\t\\ttransition: transform .5s ease;\\n\\t\\t\\tmargin-top: 1px;\\n\\n\\t\\t\\t& * {\\n\\t\\t\\t\\tstroke-dasharray: 10;\\n\\t\\t\\t\\tstroke-dashoffset: 0;\\n\\n\\t\\t\\t\\tfill: none;\\n\\t\\t\\t\\tstroke: var(--ck-color-widget-type-around-button-icon);\\n\\t\\t\\t\\tstroke-width: 1.5px;\\n\\t\\t\\t\\tstroke-linecap: round;\\n\\t\\t\\t\\tstroke-linejoin: round;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& line {\\n\\t\\t\\t\\tstroke-dasharray: 7;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&:hover {\\n\\t\\t\\t/*\\n\\t\\t\\t * Display the \\\"sonar\\\" around the button when hovered.\\n\\t\\t\\t */\\n\\t\\t\\tanimation: ck-widget-type-around-button-sonar 1s ease infinite;\\n\\n\\t\\t\\t/*\\n\\t\\t\\t * Animate active button's icon.\\n\\t\\t\\t */\\n\\t\\t\\t& svg {\\n\\t\\t\\t\\t& polyline {\\n\\t\\t\\t\\t\\tanimation: ck-widget-type-around-arrow-dash 2s linear;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t& line {\\n\\t\\t\\t\\t\\tanimation: ck-widget-type-around-arrow-tip-dash 2s linear;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Show type around buttons when the widget gets selected or being hovered.\\n\\t */\\n\\t&.ck-widget_selected,\\n\\t&:hover {\\n\\t\\t& > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\t\\t@mixin ck-widget-type-around-button-visible;\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the buttons when the widget is NOT selected (but the buttons are visible\\n\\t * and still can be hovered).\\n\\t */\\n\\t&:not(.ck-widget_selected) > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\tbackground: var(--ck-color-widget-type-around-button-hover);\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the buttons when:\\n\\t * - the widget is selected,\\n\\t * - or the button is being hovered (regardless of the widget state).\\n\\t */\\n\\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\\n\\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\\n\\t\\tbackground: var(--ck-color-widget-type-around-button-active);\\n\\n\\t\\t&::after {\\n\\t\\t\\twidth: calc(var(--ck-widget-type-around-button-size) - 2px);\\n\\t\\t\\theight: calc(var(--ck-widget-type-around-button-size) - 2px);\\n\\t\\t\\tborder-radius: 100px;\\n\\t\\t\\tbackground: linear-gradient(135deg, hsla(0,0%,100%,0) 0%, hsla(0,0%,100%,.3) 100%);\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the \\\"before\\\" button when the widget has a selection handle. Because some space\\n\\t * is consumed by the handle, the button must be moved slightly to the right to let it breathe.\\n\\t */\\n\\t&.ck-widget_with-selection-handle > .ck-widget__type-around > .ck-widget__type-around__button_before {\\n\\t\\tmargin-left: 20px;\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" which is displayed when the user navigates using the keyboard.\\n\\t */\\n\\t& .ck-widget__type-around__fake-caret {\\n\\t\\tpointer-events: none;\\n\\t\\theight: 1px;\\n\\t\\tanimation: ck-widget-type-around-fake-caret-pulse linear 1s infinite normal forwards;\\n\\n\\t\\t/*\\n\\t\\t * The semi-transparent-outline+background combo improves the contrast\\n\\t\\t * when the background underneath the fake caret is dark.\\n\\t\\t */\\n\\t\\toutline: solid 1px hsla(0, 0%, 100%, .5);\\n\\t\\tbackground: var(--ck-color-base-text);\\n\\t}\\n\\n\\t/*\\n\\t * Styles of the widget when the \\\"fake caret\\\" is blinking (e.g. upon keyboard navigation).\\n\\t * Despite the widget being physically selected in the model, its outline should disappear.\\n\\t */\\n\\t&.ck-widget_selected {\\n\\t\\t&.ck-widget_type-around_show-fake-caret_before,\\n\\t\\t&.ck-widget_type-around_show-fake-caret_after {\\n\\t\\t\\toutline-color: transparent;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-widget_type-around_show-fake-caret_before,\\n\\t&.ck-widget_type-around_show-fake-caret_after {\\n\\t\\t/*\\n\\t\\t * When the \\\"fake caret\\\" is visible we simulate that the widget is not selected\\n\\t\\t * (despite being physically selected), so the outline color should be for the\\n\\t\\t * unselected widget.\\n\\t\\t */\\n\\t\\t&.ck-widget_selected:hover {\\n\\t\\t\\toutline-color: var(--ck-color-widget-hover-border);\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * Styles of the type around buttons when the \\\"fake caret\\\" is blinking (e.g. upon keyboard navigation).\\n\\t\\t * In this state, the type around buttons would collide with the fake carets so they should disappear.\\n\\t\\t */\\n\\t\\t& > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\t\\t@mixin ck-widget-type-around-button-hidden;\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * Fake horizontal caret integration with the selection handle. When the caret is visible, simply\\n\\t\\t * hide the handle because it intersects with the caret (and does not make much sense anyway).\\n\\t\\t */\\n\\t\\t&.ck-widget_with-selection-handle {\\n\\t\\t\\t&.ck-widget_selected,\\n\\t\\t\\t&.ck-widget_selected:hover {\\n\\t\\t\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\t\\t\\topacity: 0\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * Fake horizontal caret integration with the resize UI. When the caret is visible, simply\\n\\t\\t * hide the resize UI because it creates too much noise. It can be visible when the user\\n\\t\\t * hovers the widget, though.\\n\\t\\t */\\n\\t\\t&.ck-widget_selected.ck-widget_with-resizer > .ck-widget__resizer {\\n\\t\\t\\topacity: 0\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Styles for the \\\"before\\\" button when the widget has a selection handle in an RTL environment.\\n * The selection handler is aligned to the right side of the widget so there is no need to create\\n * additional space for it next to the \\\"before\\\" button.\\n */\\n.ck[dir=\\\"rtl\\\"] .ck-widget.ck-widget_with-selection-handle .ck-widget__type-around > .ck-widget__type-around__button_before {\\n\\tmargin-left: 0;\\n\\tmargin-right: 20px;\\n}\\n\\n/*\\n * Hide type around buttons when the widget is selected as a child of a selected\\n * nested editable (e.g. mulit-cell table selection).\\n *\\n * See https://github.com/ckeditor/ckeditor5/issues/7263.\\n */\\n.ck-editor__nested-editable.ck-editor__editable_selected {\\n\\t& .ck-widget {\\n\\t\\t&.ck-widget_selected,\\n\\t\\t&:hover {\\n\\t\\t\\t& > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\t\\t\\t@mixin ck-widget-type-around-button-hidden;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Styles for the buttons when the widget is selected but the user clicked outside of the editor (blurred the editor).\\n */\\n.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button:not(:hover) {\\n\\tbackground: var(--ck-color-widget-type-around-button-blurred-editable);\\n\\n\\t& svg * {\\n\\t\\tstroke: hsl(0,0%,60%);\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-arrow-dash {\\n\\t0% {\\n\\t\\tstroke-dashoffset: 10;\\n\\t}\\n\\t20%, 100% {\\n\\t\\tstroke-dashoffset: 0;\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-arrow-tip-dash {\\n\\t0%, 20% {\\n\\t\\tstroke-dashoffset: 7;\\n\\t}\\n\\t40%, 100% {\\n\\t\\tstroke-dashoffset: 0;\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-button-sonar {\\n\\t0% {\\n\\t\\tbox-shadow: 0 0 0 0 hsla(var(--ck-color-focus-border-coordinates), var(--ck-color-widget-type-around-button-radar-start-alpha));\\n\\t}\\n\\t50% {\\n\\t\\tbox-shadow: 0 0 0 5px hsla(var(--ck-color-focus-border-coordinates), var(--ck-color-widget-type-around-button-radar-end-alpha));\\n\\t}\\n\\t100% {\\n\\t\\tbox-shadow: 0 0 0 5px hsla(var(--ck-color-focus-border-coordinates), var(--ck-color-widget-type-around-button-radar-start-alpha));\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-fake-caret-pulse {\\n\\t0% {\\n\\t\\topacity: 1;\\n\\t}\\n\\t49% {\\n\\t\\topacity: 1;\\n\\t}\\n\\t50% {\\n\\t\\topacity: 0;\\n\\t}\\n\\t99% {\\n\\t\\topacity: 0;\\n\\t}\\n\\t100% {\\n\\t\\topacity: 1;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","\"use strict\";\n\n/*\n  MIT License http://www.opensource.org/licenses/mit-license.php\n  Author Tobias Koppers @sokra\n*/\n// css base code, injected by the css-loader\n// eslint-disable-next-line func-names\nmodule.exports = function (cssWithMappingToString) {\n  var list = []; // return the list of modules as css string\n\n  list.toString = function toString() {\n    return this.map(function (item) {\n      var content = cssWithMappingToString(item);\n\n      if (item[2]) {\n        return \"@media \".concat(item[2], \" {\").concat(content, \"}\");\n      }\n\n      return content;\n    }).join(\"\");\n  }; // import a list of modules into the list\n  // eslint-disable-next-line func-names\n\n\n  list.i = function (modules, mediaQuery, dedupe) {\n    if (typeof modules === \"string\") {\n      // eslint-disable-next-line no-param-reassign\n      modules = [[null, modules, \"\"]];\n    }\n\n    var alreadyImportedModules = {};\n\n    if (dedupe) {\n      for (var i = 0; i < this.length; i++) {\n        // eslint-disable-next-line prefer-destructuring\n        var id = this[i][0];\n\n        if (id != null) {\n          alreadyImportedModules[id] = true;\n        }\n      }\n    }\n\n    for (var _i = 0; _i < modules.length; _i++) {\n      var item = [].concat(modules[_i]);\n\n      if (dedupe && alreadyImportedModules[item[0]]) {\n        // eslint-disable-next-line no-continue\n        continue;\n      }\n\n      if (mediaQuery) {\n        if (!item[2]) {\n          item[2] = mediaQuery;\n        } else {\n          item[2] = \"\".concat(mediaQuery, \" and \").concat(item[2]);\n        }\n      }\n\n      list.push(item);\n    }\n  };\n\n  return list;\n};","\"use strict\";\n\nfunction _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction _iterableToArrayLimit(arr, i) { var _i = arr && (typeof Symbol !== \"undefined\" && arr[Symbol.iterator] || arr[\"@@iterator\"]); if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nmodule.exports = function cssWithMappingToString(item) {\n  var _item = _slicedToArray(item, 4),\n      content = _item[1],\n      cssMapping = _item[3];\n\n  if (!cssMapping) {\n    return content;\n  }\n\n  if (typeof btoa === \"function\") {\n    // eslint-disable-next-line no-undef\n    var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(cssMapping))));\n    var data = \"sourceMappingURL=data:application/json;charset=utf-8;base64,\".concat(base64);\n    var sourceMapping = \"/*# \".concat(data, \" */\");\n    var sourceURLs = cssMapping.sources.map(function (source) {\n      return \"/*# sourceURL=\".concat(cssMapping.sourceRoot || \"\").concat(source, \" */\");\n    });\n    return [content].concat(sourceURLs).concat([sourceMapping]).join(\"\\n\");\n  }\n\n  return [content].join(\"\\n\");\n};","\"use strict\";\n\nvar isOldIE = function isOldIE() {\n  var memo;\n  return function memorize() {\n    if (typeof memo === 'undefined') {\n      // Test for IE <= 9 as proposed by Browserhacks\n      // @see http://browserhacks.com/#hack-e71d8692f65334173fee715c222cb805\n      // Tests for existence of standard globals is to allow style-loader\n      // to operate correctly into non-standard environments\n      // @see https://github.com/webpack-contrib/style-loader/issues/177\n      memo = Boolean(window && document && document.all && !window.atob);\n    }\n\n    return memo;\n  };\n}();\n\nvar getTarget = function getTarget() {\n  var memo = {};\n  return function memorize(target) {\n    if (typeof memo[target] === 'undefined') {\n      var styleTarget = document.querySelector(target); // Special case to return head of iframe instead of iframe itself\n\n      if (window.HTMLIFrameElement && styleTarget instanceof window.HTMLIFrameElement) {\n        try {\n          // This will throw an exception if access to iframe is blocked\n          // due to cross-origin restrictions\n          styleTarget = styleTarget.contentDocument.head;\n        } catch (e) {\n          // istanbul ignore next\n          styleTarget = null;\n        }\n      }\n\n      memo[target] = styleTarget;\n    }\n\n    return memo[target];\n  };\n}();\n\nvar stylesInDom = [];\n\nfunction getIndexByIdentifier(identifier) {\n  var result = -1;\n\n  for (var i = 0; i < stylesInDom.length; i++) {\n    if (stylesInDom[i].identifier === identifier) {\n      result = i;\n      break;\n    }\n  }\n\n  return result;\n}\n\nfunction modulesToDom(list, options) {\n  var idCountMap = {};\n  var identifiers = [];\n\n  for (var i = 0; i < list.length; i++) {\n    var item = list[i];\n    var id = options.base ? item[0] + options.base : item[0];\n    var count = idCountMap[id] || 0;\n    var identifier = \"\".concat(id, \" \").concat(count);\n    idCountMap[id] = count + 1;\n    var index = getIndexByIdentifier(identifier);\n    var obj = {\n      css: item[1],\n      media: item[2],\n      sourceMap: item[3]\n    };\n\n    if (index !== -1) {\n      stylesInDom[index].references++;\n      stylesInDom[index].updater(obj);\n    } else {\n      stylesInDom.push({\n        identifier: identifier,\n        updater: addStyle(obj, options),\n        references: 1\n      });\n    }\n\n    identifiers.push(identifier);\n  }\n\n  return identifiers;\n}\n\nfunction insertStyleElement(options) {\n  var style = document.createElement('style');\n  var attributes = options.attributes || {};\n\n  if (typeof attributes.nonce === 'undefined') {\n    var nonce = typeof __webpack_nonce__ !== 'undefined' ? __webpack_nonce__ : null;\n\n    if (nonce) {\n      attributes.nonce = nonce;\n    }\n  }\n\n  Object.keys(attributes).forEach(function (key) {\n    style.setAttribute(key, attributes[key]);\n  });\n\n  if (typeof options.insert === 'function') {\n    options.insert(style);\n  } else {\n    var target = getTarget(options.insert || 'head');\n\n    if (!target) {\n      throw new Error(\"Couldn't find a style target. This probably means that the value for the 'insert' parameter is invalid.\");\n    }\n\n    target.appendChild(style);\n  }\n\n  return style;\n}\n\nfunction removeStyleElement(style) {\n  // istanbul ignore if\n  if (style.parentNode === null) {\n    return false;\n  }\n\n  style.parentNode.removeChild(style);\n}\n/* istanbul ignore next  */\n\n\nvar replaceText = function replaceText() {\n  var textStore = [];\n  return function replace(index, replacement) {\n    textStore[index] = replacement;\n    return textStore.filter(Boolean).join('\\n');\n  };\n}();\n\nfunction applyToSingletonTag(style, index, remove, obj) {\n  var css = remove ? '' : obj.media ? \"@media \".concat(obj.media, \" {\").concat(obj.css, \"}\") : obj.css; // For old IE\n\n  /* istanbul ignore if  */\n\n  if (style.styleSheet) {\n    style.styleSheet.cssText = replaceText(index, css);\n  } else {\n    var cssNode = document.createTextNode(css);\n    var childNodes = style.childNodes;\n\n    if (childNodes[index]) {\n      style.removeChild(childNodes[index]);\n    }\n\n    if (childNodes.length) {\n      style.insertBefore(cssNode, childNodes[index]);\n    } else {\n      style.appendChild(cssNode);\n    }\n  }\n}\n\nfunction applyToTag(style, options, obj) {\n  var css = obj.css;\n  var media = obj.media;\n  var sourceMap = obj.sourceMap;\n\n  if (media) {\n    style.setAttribute('media', media);\n  } else {\n    style.removeAttribute('media');\n  }\n\n  if (sourceMap && typeof btoa !== 'undefined') {\n    css += \"\\n/*# sourceMappingURL=data:application/json;base64,\".concat(btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))), \" */\");\n  } // For old IE\n\n  /* istanbul ignore if  */\n\n\n  if (style.styleSheet) {\n    style.styleSheet.cssText = css;\n  } else {\n    while (style.firstChild) {\n      style.removeChild(style.firstChild);\n    }\n\n    style.appendChild(document.createTextNode(css));\n  }\n}\n\nvar singleton = null;\nvar singletonCounter = 0;\n\nfunction addStyle(obj, options) {\n  var style;\n  var update;\n  var remove;\n\n  if (options.singleton) {\n    var styleIndex = singletonCounter++;\n    style = singleton || (singleton = insertStyleElement(options));\n    update = applyToSingletonTag.bind(null, style, styleIndex, false);\n    remove = applyToSingletonTag.bind(null, style, styleIndex, true);\n  } else {\n    style = insertStyleElement(options);\n    update = applyToTag.bind(null, style, options);\n\n    remove = function remove() {\n      removeStyleElement(style);\n    };\n  }\n\n  update(obj);\n  return function updateStyle(newObj) {\n    if (newObj) {\n      if (newObj.css === obj.css && newObj.media === obj.media && newObj.sourceMap === obj.sourceMap) {\n        return;\n      }\n\n      update(obj = newObj);\n    } else {\n      remove();\n    }\n  };\n}\n\nmodule.exports = function (list, options) {\n  options = options || {}; // Force single-tag solution on IE6-9, which has a hard limit on the # of <style>\n  // tags it will allow on a page\n\n  if (!options.singleton && typeof options.singleton !== 'boolean') {\n    options.singleton = isOldIE();\n  }\n\n  list = list || [];\n  var lastIdentifiers = modulesToDom(list, options);\n  return function update(newList) {\n    newList = newList || [];\n\n    if (Object.prototype.toString.call(newList) !== '[object Array]') {\n      return;\n    }\n\n    for (var i = 0; i < lastIdentifiers.length; i++) {\n      var identifier = lastIdentifiers[i];\n      var index = getIndexByIdentifier(identifier);\n      stylesInDom[index].references--;\n    }\n\n    var newLastIdentifiers = modulesToDom(newList, options);\n\n    for (var _i = 0; _i < lastIdentifiers.length; _i++) {\n      var _identifier = lastIdentifiers[_i];\n\n      var _index = getIndexByIdentifier(_identifier);\n\n      if (stylesInDom[_index].references === 0) {\n        stylesInDom[_index].updater();\n\n        stylesInDom.splice(_index, 1);\n      }\n    }\n\n    lastIdentifiers = newLastIdentifiers;\n  };\n};","// The module cache\nvar __webpack_module_cache__ = {};\n\n// The require function\nfunction __webpack_require__(moduleId) {\n\t// Check if module is in cache\n\tvar cachedModule = __webpack_module_cache__[moduleId];\n\tif (cachedModule !== undefined) {\n\t\treturn cachedModule.exports;\n\t}\n\t// Create a new module (and put it into the cache)\n\tvar module = __webpack_module_cache__[moduleId] = {\n\t\tid: moduleId,\n\t\t// no module.loaded needed\n\t\texports: {}\n\t};\n\n\t// Execute the module function\n\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n\n\t// Return the exports of the module\n\treturn module.exports;\n}\n\n","// getDefaultExport function for compatibility with non-harmony modules\n__webpack_require__.n = (module) => {\n\tvar getter = module && module.__esModule ?\n\t\t() => (module['default']) :\n\t\t() => (module);\n\t__webpack_require__.d(getter, { a: getter });\n\treturn getter;\n};","// define getter functions for harmony exports\n__webpack_require__.d = (exports, definition) => {\n\tfor(var key in definition) {\n\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n\t\t}\n\t}\n};","__webpack_require__.g = (function() {\n\tif (typeof globalThis === 'object') return globalThis;\n\ttry {\n\t\treturn this || new Function('return this')();\n\t} catch (e) {\n\t\tif (typeof window === 'object') return window;\n\t}\n})();","__webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals navigator:false */\n\n/**\n * @module utils/env\n */\n\n/**\n * Safely returns `userAgent` from browser's navigator API in a lower case.\n * If navigator API is not available it will return an empty string.\n */\nexport function getUserAgent( ): string {\n\t// In some environments navigator API might not be available.\n\ttry {\n\t\treturn navigator.userAgent.toLowerCase();\n\t} catch ( e ) {\n\t\treturn '';\n\t}\n}\n\nconst userAgent = getUserAgent();\n\n// This interface exists to make our API pages more readable.\n/**\n * A namespace containing environment and browser information.\n */\nexport interface EnvType {\n\n\t/**\n\t * Indicates that the application is running on Macintosh.\n\t */\n\treadonly isMac: boolean;\n\n\t/**\n\t * Indicates that the application is running on Windows.\n\t */\n\treadonly isWindows: boolean;\n\n\t/**\n\t * Indicates that the application is running in Firefox (Gecko).\n\t */\n\treadonly isGecko: boolean;\n\n\t/**\n\t * Indicates that the application is running in Safari.\n\t */\n\treadonly isSafari: boolean;\n\n\t/**\n\t * Indicates the the application is running in iOS.\n\t */\n\treadonly isiOS: boolean;\n\n\t/**\n\t * Indicates that the application is running on Android mobile device.\n\t */\n\treadonly isAndroid: boolean;\n\n\t/**\n\t * Indicates that the application is running in a browser using the Blink engine.\n\t */\n\treadonly isBlink: boolean;\n\n\t/**\n\t * Environment features information.\n\t */\n\treadonly features: EnvFeaturesType;\n}\n\nexport interface EnvFeaturesType {\n\n\t/**\n\t * Indicates that the environment supports ES2018 Unicode property escapes — like `\\p{P}` or `\\p{L}`.\n\t * More information about unicode properties might be found\n\t * [in Unicode Standard Annex #44](https://www.unicode.org/reports/tr44/#GC_Values_Table).\n\t */\n\treadonly isRegExpUnicodePropertySupported: boolean;\n}\n\n/**\n * A namespace containing environment and browser information.\n */\nconst env: EnvType = {\n\tisMac: isMac( userAgent ),\n\n\tisWindows: isWindows( userAgent ),\n\n\tisGecko: isGecko( userAgent ),\n\n\tisSafari: isSafari( userAgent ),\n\n\tisiOS: isiOS( userAgent ),\n\n\tisAndroid: isAndroid( userAgent ),\n\n\tisBlink: isBlink( userAgent ),\n\n\tfeatures: {\n\t\tisRegExpUnicodePropertySupported: isRegExpUnicodePropertySupported()\n\t}\n};\n\nexport default env;\n\n/**\n * Checks if User Agent represented by the string is running on Macintosh.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is running on Macintosh or not.\n */\nexport function isMac( userAgent: string ): boolean {\n\treturn userAgent.indexOf( 'macintosh' ) > -1;\n}\n\n/**\n * Checks if User Agent represented by the string is running on Windows.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is running on Windows or not.\n */\nexport function isWindows( userAgent: string ): boolean {\n\treturn userAgent.indexOf( 'windows' ) > -1;\n}\n\n/**\n * Checks if User Agent represented by the string is Firefox (Gecko).\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Firefox or not.\n */\nexport function isGecko( userAgent: string ): boolean {\n\treturn !!userAgent.match( /gecko\\/\\d+/ );\n}\n\n/**\n * Checks if User Agent represented by the string is Safari.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Safari or not.\n */\nexport function isSafari( userAgent: string ): boolean {\n\treturn userAgent.indexOf( ' applewebkit/' ) > -1 && userAgent.indexOf( 'chrome' ) === -1;\n}\n\n/**\n * Checks if User Agent represented by the string is running in iOS.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is running in iOS or not.\n */\nexport function isiOS( userAgent: string ): boolean {\n\t// \"Request mobile site\" || \"Request desktop site\".\n\treturn !!userAgent.match( /iphone|ipad/i ) || ( isMac( userAgent ) && navigator.maxTouchPoints > 0 );\n}\n\n/**\n * Checks if User Agent represented by the string is Android mobile device.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Safari or not.\n */\nexport function isAndroid( userAgent: string ): boolean {\n\treturn userAgent.indexOf( 'android' ) > -1;\n}\n\n/**\n * Checks if User Agent represented by the string is Blink engine.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Blink engine or not.\n */\nexport function isBlink( userAgent: string ): boolean {\n\t// The Edge browser before switching to the Blink engine used to report itself as Chrome (and \"Edge/\")\n\t// but after switching to the Blink it replaced \"Edge/\" with \"Edg/\".\n\treturn userAgent.indexOf( 'chrome/' ) > -1 && userAgent.indexOf( 'edge/' ) < 0;\n}\n\n/**\n * Checks if the current environment supports ES2018 Unicode properties like `\\p{P}` or `\\p{L}`.\n * More information about unicode properties might be found\n * [in Unicode Standard Annex #44](https://www.unicode.org/reports/tr44/#GC_Values_Table).\n */\nexport function isRegExpUnicodePropertySupported(): boolean {\n\tlet isSupported = false;\n\n\t// Feature detection for Unicode properties. Added in ES2018. Currently Firefox does not support it.\n\t// See https://github.com/ckeditor/ckeditor5-mention/issues/44#issuecomment-487002174.\n\n\ttry {\n\t\t// Usage of regular expression literal cause error during build (ckeditor/ckeditor5-dev#534).\n\t\tisSupported = 'ć'.search( new RegExp( '[\\\\p{L}]', 'u' ) ) === 0;\n\t} catch ( error ) {\n\t\t// Firefox throws a SyntaxError when the group is unsupported.\n\t}\n\n\treturn isSupported;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { DiffResult } from './diff';\nimport type { Change } from './difftochanges';\n\n/**\n * @module utils/fastdiff\n */\n\n/**\n * Finds positions of the first and last change in the given string/array and generates a set of changes:\n *\n * ```ts\n * fastDiff( '12a', '12xyza' );\n * // [ { index: 2, type: 'insert', values: [ 'x', 'y', 'z' ] } ]\n *\n * fastDiff( '12a', '12aa' );\n * // [ { index: 3, type: 'insert', values: [ 'a' ] } ]\n *\n * fastDiff( '12xyza', '12a' );\n * // [ { index: 2, type: 'delete', howMany: 3 } ]\n *\n * fastDiff( [ '1', '2', 'a', 'a' ], [ '1', '2', 'a' ] );\n * // [ { index: 3, type: 'delete', howMany: 1 } ]\n *\n * fastDiff( [ '1', '2', 'a', 'b', 'c', '3' ], [ '2', 'a', 'b' ] );\n * // [ { index: 0, type: 'insert', values: [ '2', 'a', 'b' ] }, { index: 3, type: 'delete', howMany: 6 } ]\n * ```\n *\n * Passed arrays can contain any type of data, however to compare them correctly custom comparator function\n * should be passed as a third parameter:\n *\n * ```ts\n * fastDiff( [ { value: 1 }, { value: 2 } ], [ { value: 1 }, { value: 3 } ], ( a, b ) => {\n * \treturn a.value === b.value;\n * } );\n * // [ { index: 1, type: 'insert', values: [ { value: 3 } ] }, { index: 2, type: 'delete', howMany: 1 } ]\n * ```\n *\n * The resulted set of changes can be applied to the input in order to transform it into the output, for example:\n *\n * ```ts\n * let input = '12abc3';\n * const output = '2ab';\n * const changes = fastDiff( input, output );\n *\n * changes.forEach( change => {\n * \tif ( change.type == 'insert' ) {\n * \t\tinput = input.substring( 0, change.index ) + change.values.join( '' ) + input.substring( change.index );\n * \t} else if ( change.type == 'delete' ) {\n * \t\tinput = input.substring( 0, change.index ) + input.substring( change.index + change.howMany );\n * \t}\n * } );\n *\n * // input equals output now\n * ```\n *\n * or in case of arrays:\n *\n * ```ts\n * let input = [ '1', '2', 'a', 'b', 'c', '3' ];\n * const output = [ '2', 'a', 'b' ];\n * const changes = fastDiff( input, output );\n *\n * changes.forEach( change => {\n * \tif ( change.type == 'insert' ) {\n * \t\tinput = input.slice( 0, change.index ).concat( change.values, input.slice( change.index ) );\n * \t} else if ( change.type == 'delete' ) {\n * \t\tinput = input.slice( 0, change.index ).concat( input.slice( change.index + change.howMany ) );\n * \t}\n * } );\n *\n * // input equals output now\n * ```\n *\n * By passing `true` as the fourth parameter (`atomicChanges`) the output of this function will become compatible with\n * the {@link module:utils/diff~diff `diff()`} function:\n *\n * ```ts\n * fastDiff( '12a', '12xyza', undefined, true );\n * // [ 'equal', 'equal', 'insert', 'insert', 'insert', 'equal' ]\n * ```\n *\n * The default output format of this function is compatible with the output format of\n * {@link module:utils/difftochanges~diffToChanges `diffToChanges()`}. The `diffToChanges()` input format is, in turn,\n * compatible with the output of {@link module:utils/diff~diff `diff()`}:\n *\n * ```ts\n * const a = '1234';\n * const b = '12xyz34';\n *\n * // Both calls will return the same results (grouped changes format).\n * fastDiff( a, b );\n * diffToChanges( diff( a, b ) );\n *\n * // Again, both calls will return the same results (atomic changes format).\n * fastDiff( a, b, undefined, true );\n * diff( a, b );\n * ```\n *\n * @typeParam T The type of array elements.\n * @typeParam AtomicChanges The type of `atomicChanges` parameter (selects the result type).\n * @param a Input array or string.\n * @param b Input array or string.\n * @param cmp Optional function used to compare array values, by default `===` (strict equal operator) is used.\n * @param atomicChanges Whether an array of `inset|delete|equal` operations should\n * be returned instead of changes set. This makes this function compatible with {@link module:utils/diff~diff `diff()`}.\n * Defaults to `false`.\n * @returns Array of changes. The elements are either {@link module:utils/diff~DiffResult} or {@link module:utils/difftochanges~Change},\n * depending on `atomicChanges` parameter.\n */\nexport default function fastDiff<T, AtomicChanges extends boolean = false>(\n\ta: ArrayLike<T>,\n\tb: ArrayLike<T>,\n\tcmp?: ( a: T, b: T ) => boolean,\n\tatomicChanges?: AtomicChanges\n): Array<AtomicChanges extends true ? DiffResult : Change<T>> {\n\t// Set the comparator function.\n\tcmp = cmp || function( a, b ) {\n\t\treturn a === b;\n\t};\n\n\t// Convert the string (or any array-like object - eg. NodeList) to an array by using the slice() method because,\n\t// unlike Array.from(), it returns array of UTF-16 code units instead of the code points of a string.\n\t// One code point might be a surrogate pair of two code units. All text offsets are expected to be in code units.\n\t// See ckeditor/ckeditor5#3147.\n\t//\n\t// We need to make sure here that fastDiff() works identical to diff().\n\tconst arrayA: Array<T> = Array.isArray( a ) ? a : Array.prototype.slice.call( a );\n\tconst arrayB: Array<T> = Array.isArray( b ) ? b : Array.prototype.slice.call( b );\n\n\t// Find first and last change.\n\tconst changeIndexes = findChangeBoundaryIndexes( arrayA, arrayB, cmp );\n\n\t// Transform into changes array.\n\tconst result = atomicChanges ?\n\t\tchangeIndexesToAtomicChanges( changeIndexes, arrayB.length ) :\n\t\tchangeIndexesToChanges( arrayB, changeIndexes );\n\n\treturn result as any;\n}\n\n/**\n * Finds position of the first and last change in the given arrays. For example:\n *\n * ```ts\n * const indexes = findChangeBoundaryIndexes( [ '1', '2', '3', '4' ], [ '1', '3', '4', '2', '4' ] );\n * console.log( indexes ); // { firstIndex: 1, lastIndexOld: 3, lastIndexNew: 4 }\n * ```\n *\n * The above indexes means that in the first array the modified part is `1[23]4` and in the second array it is `1[342]4`.\n * Based on such indexes, array with `insert`/`delete` operations which allows transforming first value into the second one\n * can be generated.\n */\nfunction findChangeBoundaryIndexes<T>( arr1: ReadonlyArray<T>, arr2: ReadonlyArray<T>, cmp: ( a: T, b: T ) => boolean ): ChangeIndexes {\n\t// Find the first difference between passed values.\n\tconst firstIndex = findFirstDifferenceIndex( arr1, arr2, cmp );\n\n\t// If arrays are equal return -1 indexes object.\n\tif ( firstIndex === -1 ) {\n\t\treturn { firstIndex: -1, lastIndexOld: -1, lastIndexNew: -1 };\n\t}\n\n\t// Remove the common part of each value and reverse them to make it simpler to find the last difference between them.\n\tconst oldArrayReversed = cutAndReverse( arr1, firstIndex );\n\tconst newArrayReversed = cutAndReverse( arr2, firstIndex );\n\n\t// Find the first difference between reversed values.\n\t// It should be treated as \"how many elements from the end the last difference occurred\".\n\t//\n\t// For example:\n\t//\n\t// \t\t\t\tinitial\t->\tafter cut\t-> reversed:\n\t// oldValue:\t'321ba'\t->\t'21ba'\t\t-> 'ab12'\n\t// newValue:\t'31xba'\t->\t'1xba'\t\t-> 'abx1'\n\t// lastIndex:\t\t\t\t\t\t\t-> 2\n\t//\n\t// So the last change occurred two characters from the end of the arrays.\n\tconst lastIndex = findFirstDifferenceIndex( oldArrayReversed, newArrayReversed, cmp );\n\n\t// Use `lastIndex` to calculate proper offset, starting from the beginning (`lastIndex` kind of starts from the end).\n\tconst lastIndexOld = arr1.length - lastIndex;\n\tconst lastIndexNew = arr2.length - lastIndex;\n\n\treturn { firstIndex, lastIndexOld, lastIndexNew };\n}\n\n/**\n * Returns a first index on which given arrays differ. If both arrays are the same, -1 is returned.\n */\nfunction findFirstDifferenceIndex<T>( arr1: ReadonlyArray<T>, arr2: ReadonlyArray<T>, cmp: ( a: T, b: T ) => boolean ): number {\n\tfor ( let i = 0; i < Math.max( arr1.length, arr2.length ); i++ ) {\n\t\tif ( arr1[ i ] === undefined || arr2[ i ] === undefined || !cmp( arr1[ i ], arr2[ i ] ) ) {\n\t\t\treturn i;\n\t\t}\n\t}\n\n\treturn -1; // Return -1 if arrays are equal.\n}\n\n/**\n * Returns a copy of the given array with `howMany` elements removed starting from the beginning and in reversed order.\n *\n * @param arr Array to be processed.\n * @param howMany How many elements from array beginning to remove.\n * @returns Shortened and reversed array.\n */\nfunction cutAndReverse<T>( arr: ReadonlyArray<T>, howMany: number ): Array<T> {\n\treturn arr.slice( howMany ).reverse();\n}\n\n/**\n * Generates changes array based on change indexes from `findChangeBoundaryIndexes` function. This function will\n * generate array with 0 (no changes), 1 (deletion or insertion) or 2 records (insertion and deletion).\n *\n * @param newArray New array for which change indexes were calculated.\n * @param changeIndexes Change indexes object from `findChangeBoundaryIndexes` function.\n * @returns Array of changes compatible with {@link module:utils/difftochanges~diffToChanges} format.\n */\nfunction changeIndexesToChanges<T>( newArray: ReadonlyArray<T>, changeIndexes: ChangeIndexes ): Array<Change<T>> {\n\tconst result: Array<Change<T>> = [];\n\tconst { firstIndex, lastIndexOld, lastIndexNew } = changeIndexes;\n\n\t// Order operations as 'insert', 'delete' array to keep compatibility with {@link module:utils/difftochanges~diffToChanges}\n\t// in most cases. However, 'diffToChanges' does not stick to any order so in some cases\n\t// (for example replacing '12345' with 'abcd') it will generate 'delete', 'insert' order.\n\tif ( lastIndexNew - firstIndex > 0 ) {\n\t\tresult.push( {\n\t\t\tindex: firstIndex,\n\t\t\ttype: 'insert',\n\t\t\tvalues: newArray.slice( firstIndex, lastIndexNew )\n\t\t} );\n\t}\n\n\tif ( lastIndexOld - firstIndex > 0 ) {\n\t\tresult.push( {\n\t\t\tindex: firstIndex + ( lastIndexNew - firstIndex ), // Increase index of what was inserted.\n\t\t\ttype: 'delete',\n\t\t\thowMany: lastIndexOld - firstIndex\n\t\t} );\n\t}\n\n\treturn result;\n}\n\n/**\n * Generates array with set `equal|insert|delete` operations based on change indexes from `findChangeBoundaryIndexes` function.\n *\n * @param changeIndexes Change indexes object from `findChangeBoundaryIndexes` function.\n * @param newLength Length of the new array on which `findChangeBoundaryIndexes` calculated change indexes.\n * @returns Array of changes compatible with {@link module:utils/diff~diff} format.\n */\nfunction changeIndexesToAtomicChanges( changeIndexes: ChangeIndexes, newLength: number ): Array<DiffResult> {\n\tconst { firstIndex, lastIndexOld, lastIndexNew } = changeIndexes;\n\n\t// No changes.\n\tif ( firstIndex === -1 ) {\n\t\treturn Array( newLength ).fill( 'equal' );\n\t}\n\n\tlet result: Array<DiffResult> = [];\n\n\tif ( firstIndex > 0 ) {\n\t\tresult = result.concat( Array( firstIndex ).fill( 'equal' ) );\n\t}\n\n\tif ( lastIndexNew - firstIndex > 0 ) {\n\t\tresult = result.concat( Array( lastIndexNew - firstIndex ).fill( 'insert' ) );\n\t}\n\n\tif ( lastIndexOld - firstIndex > 0 ) {\n\t\tresult = result.concat( Array( lastIndexOld - firstIndex ).fill( 'delete' ) );\n\t}\n\n\tif ( lastIndexNew < newLength ) {\n\t\tresult = result.concat( Array( newLength - lastIndexNew ).fill( 'equal' ) );\n\t}\n\n\treturn result;\n}\n\n/**\n * Indexes of the first and the last change in the given arrays.\n */\ninterface ChangeIndexes {\n\n\t/**\n\t * Index of the first change in both values (always the same for both).\n\t */\n\tfirstIndex: number;\n\n\t/**\n\t * Index of the last common value in `arr1`.\n\t */\n\tlastIndexOld: number;\n\n\t/**\n\t * Index of the last common value in `arr2`.\n\t */\n\tlastIndexNew: number;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/diff\n */\n\nimport fastDiff from './fastdiff';\n\n// The following code is based on the \"O(NP) Sequence Comparison Algorithm\"\n// by Sun Wu, Udi Manber, Gene Myers, Webb Miller.\n\n/**\n * Calculates the difference between two arrays or strings producing an array containing a list of changes\n * necessary to transform input into output.\n *\n * ```ts\n * diff( 'aba', 'acca' ); // [ 'equal', 'insert', 'insert', 'delete', 'equal' ]\n * ```\n *\n * This function is based on the \"O(NP) Sequence Comparison Algorithm\" by Sun Wu, Udi Manber, Gene Myers, Webb Miller.\n * Unfortunately, while it gives the most precise results, its to complex for longer strings/arrow (above 200 items).\n * Therefore, `diff()` automatically switches to {@link module:utils/fastdiff~fastDiff `fastDiff()`} when detecting\n * such a scenario. The return formats of both functions are identical.\n *\n * @param a Input array or string.\n * @param b Output array or string.\n * @param cmp Optional function used to compare array values, by default === is used.\n * @returns Array of changes.\n */\nexport default function diff<T>(\n\ta: ArrayLike<T>,\n\tb: ArrayLike<T>,\n\tcmp?: ( a: T, b: T ) => boolean\n): Array<DiffResult> {\n\t// Set the comparator function.\n\tcmp = cmp || function( a, b ) {\n\t\treturn a === b;\n\t};\n\n\tconst aLength = a.length;\n\tconst bLength = b.length;\n\n\t// Perform `fastDiff` for longer strings/arrays (see #269).\n\tif ( aLength > 200 || bLength > 200 || aLength + bLength > 300 ) {\n\t\treturn diff.fastDiff( a, b, cmp, true );\n\t}\n\n\t// Temporary action type statics.\n\tlet _insert: DiffResult, _delete: DiffResult;\n\n\t// Swapped the arrays to use the shorter one as the first one.\n\tif ( bLength < aLength ) {\n\t\tconst tmp = a;\n\n\t\ta = b;\n\t\tb = tmp;\n\n\t\t// We swap the action types as well.\n\t\t_insert = 'delete';\n\t\t_delete = 'insert';\n\t} else {\n\t\t_insert = 'insert';\n\t\t_delete = 'delete';\n\t}\n\n\tconst m = a.length;\n\tconst n = b.length;\n\tconst delta = n - m;\n\n\t// Edit scripts, for each diagonal.\n\tconst es: { [ k: number ]: Array<DiffResult> } = {};\n\t// Furthest points, the furthest y we can get on each diagonal.\n\tconst fp: { [ k: number]: number } = {};\n\n\tfunction snake( k: number ): number {\n\t\t// We use -1 as an alternative below to handle initial values ( instead of filling the fp with -1 first ).\n\t\t// Furthest points (y) on the diagonal below k.\n\t\tconst y1 = ( fp[ k - 1 ] !== undefined ? fp[ k - 1 ] : -1 ) + 1;\n\t\t// Furthest points (y) on the diagonal above k.\n\t\tconst y2 = fp[ k + 1 ] !== undefined ? fp[ k + 1 ] : -1;\n\t\t// The way we should go to get further.\n\t\tconst dir = y1 > y2 ? -1 : 1;\n\n\t\t// Clone previous changes array (if any).\n\t\tif ( es[ k + dir ] ) {\n\t\t\tes[ k ] = es[ k + dir ].slice( 0 );\n\t\t}\n\n\t\t// Create changes array.\n\t\tif ( !es[ k ] ) {\n\t\t\tes[ k ] = [];\n\t\t}\n\n\t\t// Push the action.\n\t\tes[ k ].push( y1 > y2 ? _insert : _delete );\n\n\t\t// Set the beginning coordinates.\n\t\tlet y = Math.max( y1, y2 );\n\t\tlet x = y - k;\n\n\t\t// Traverse the diagonal as long as the values match.\n\t\twhile ( x < m && y < n && cmp!( a[ x ], b[ y ] ) ) {\n\t\t\tx++;\n\t\t\ty++;\n\t\t\t// Push no change action.\n\t\t\tes[ k ].push( 'equal' );\n\t\t}\n\n\t\treturn y;\n\t}\n\n\tlet p = 0;\n\tlet k;\n\n\t// Traverse the graph until we reach the end of the longer string.\n\tdo {\n\t\t// Updates furthest points and edit scripts for diagonals below delta.\n\t\tfor ( k = -p; k < delta; k++ ) {\n\t\t\tfp[ k ] = snake( k );\n\t\t}\n\n\t\t// Updates furthest points and edit scripts for diagonals above delta.\n\t\tfor ( k = delta + p; k > delta; k-- ) {\n\t\t\tfp[ k ] = snake( k );\n\t\t}\n\n\t\t// Updates furthest point and edit script for the delta diagonal.\n\t\t// note that the delta diagonal is the one which goes through the sink (m, n).\n\t\tfp[ delta ] = snake( delta );\n\n\t\tp++;\n\t} while ( fp[ delta ] !== n );\n\n\t// Return the final list of edit changes.\n\t// We remove the first item that represents the action for the injected nulls.\n\treturn es[ delta ].slice( 1 );\n}\n\n// Store the API in static property to easily overwrite it in tests.\n// Too bad dependency injection does not work in Webpack + ES 6 (const) + Babel.\ndiff.fastDiff = fastDiff;\n\n/**\n * The element of the result of {@link module:utils/diff~diff} function.\n */\nexport type DiffResult = 'equal' | 'insert' | 'delete';\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/mix\n */\n\n/**\n * Copies enumerable properties and symbols from the objects given as 2nd+ parameters to the\n * prototype of first object (a constructor).\n *\n * ```\n * class Editor {\n * \t...\n * }\n *\n * const SomeMixin = {\n * \ta() {\n * \t\treturn 'a';\n * \t}\n * };\n *\n * mix( Editor, SomeMixin, ... );\n *\n * new Editor().a(); // -> 'a'\n * ```\n *\n * Note: Properties which already exist in the base class will not be overriden.\n *\n * @deprecated Use mixin pattern, see: https://www.typescriptlang.org/docs/handbook/mixins.html.\n * @param baseClass Class which prototype will be extended.\n * @param mixins Objects from which to get properties.\n */\nexport default function mix( baseClass: Function, ...mixins: Array<object> ): void {\n\tmixins.forEach( mixin => {\n\t\tconst propertyNames: Array<string | symbol> = Object.getOwnPropertyNames( mixin );\n\t\tconst propertySymbols = Object.getOwnPropertySymbols( mixin );\n\n\t\tpropertyNames.concat( propertySymbols ).forEach( key => {\n\t\t\tif ( key in baseClass.prototype ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( typeof mixin == 'function' && ( key == 'length' || key == 'name' || key == 'prototype' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst sourceDescriptor = Object.getOwnPropertyDescriptor( mixin, key )!;\n\t\t\tsourceDescriptor.enumerable = false;\n\n\t\t\tObject.defineProperty( baseClass.prototype, key, sourceDescriptor );\n\t\t} );\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/spy\n */\n\n/**\n * Creates a spy function (ala Sinon.js) that can be used to inspect call to it.\n *\n * The following are the present features:\n *\n * * spy.called: property set to `true` if the function has been called at least once.\n *\n * @returns The spy function.\n */\nfunction spy(): { (): void; called?: boolean } {\n\treturn function spy() {\n\t\t( spy as any ).called = true;\n\t};\n}\n\nexport default spy;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/eventinfo\n */\n\nimport spy from './spy';\n\n/**\n * The event object passed to event callbacks. It is used to provide information about the event as well as a tool to\n * manipulate it.\n */\nexport default class EventInfo<TName extends string = string, TReturn = unknown> {\n\t/**\n\t * The object that fired the event.\n\t */\n\tpublic readonly source: object;\n\n\t/**\n\t * The event name.\n\t */\n\tpublic readonly name: TName;\n\n\t/**\n\t * Path this event has followed. See {@link module:utils/emittermixin~Emitter#delegate}.\n\t */\n\tpublic path: Array<object>;\n\n\t/**\n\t * Stops the event emitter to call further callbacks for this event interaction.\n\t */\n\tpublic readonly stop: { (): void; called?: boolean };\n\n\t/**\n\t * Removes the current callback from future interactions of this event.\n\t */\n\tpublic readonly off: { (): void; called?: boolean };\n\n\t/**\n\t * The value which will be returned by {@link module:utils/emittermixin~Emitter#fire}.\n\t *\n\t * It's `undefined` by default and can be changed by an event listener:\n\t *\n\t * ```ts\n\t * dataController.fire( 'getSelectedContent', ( evt ) => {\n\t * \t// This listener will make `dataController.fire( 'getSelectedContent' )`\n\t * \t// always return an empty DocumentFragment.\n\t * \tevt.return = new DocumentFragment();\n\t *\n\t * \t// Make sure no other listeners are executed.\n\t * \tevt.stop();\n\t * } );\n\t * ```\n\t */\n\tpublic return: TReturn | undefined;\n\n\t/**\n\t * @param source The emitter.\n\t * @param name The event name.\n\t */\n\tconstructor( source: object, name: TName ) {\n\t\tthis.source = source;\n\t\tthis.name = name;\n\t\tthis.path = [];\n\n\t\t// The following methods are defined in the constructor because they must be re-created per instance.\n\t\tthis.stop = spy();\n\t\tthis.off = spy();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/uid\n */\n\n/**\n * A hash table of hex numbers to avoid using toString() in uid() which is costly.\n * [ '00', '01', '02', ..., 'fe', 'ff' ]\n */\nconst HEX_NUMBERS = new Array( 256 ).fill( '' )\n\t.map( ( _, index ) => ( '0' + ( index ).toString( 16 ) ).slice( -2 ) );\n\n/**\n * Returns a unique id. The id starts with an \"e\" character and a randomly generated string of\n * 32 alphanumeric characters.\n *\n * **Note**: The characters the unique id is built from correspond to the hex number notation\n * (from \"0\" to \"9\", from \"a\" to \"f\"). In other words, each id corresponds to an \"e\" followed\n * by 16 8-bit numbers next to each other.\n *\n * @returns An unique id string.\n */\nexport default function uid(): string {\n\t// Let's create some positive random 32bit integers first.\n\t//\n\t// 1. Math.random() is a float between 0 and 1.\n\t// 2. 0x100000000 is 2^32 = 4294967296.\n\t// 3. >>> 0 enforces integer (in JS all numbers are floating point).\n\t//\n\t// For instance:\n\t//\t\tMath.random() * 0x100000000 = 3366450031.853859\n\t// but\n\t//\t\tMath.random() * 0x100000000 >>> 0 = 3366450031.\n\tconst r1 = Math.random() * 0x100000000 >>> 0;\n\tconst r2 = Math.random() * 0x100000000 >>> 0;\n\tconst r3 = Math.random() * 0x100000000 >>> 0;\n\tconst r4 = Math.random() * 0x100000000 >>> 0;\n\n\t// Make sure that id does not start with number.\n\treturn 'e' +\n\t\tHEX_NUMBERS[ r1 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r1 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r1 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r1 >> 24 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 24 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 24 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 24 & 0xFF ];\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/priorities\n */\n\n/**\n * String representing a priority value.\n */\nexport type PriorityString = 'highest' | 'high' | 'normal' | 'low' | 'lowest' | number;\n\n// This interface exists to make our API pages more readable.\n/**\n * Provides group of constants to use instead of hardcoding numeric priority values.\n */\nexport interface PrioritiesType {\n\n\t/**\n\t * Converts a string with priority name to it's numeric value. If `Number` is given, it just returns it.\n\t *\n\t * @param priority Priority to convert.\n\t * @returns Converted priority.\n\t */\n\tget( priority?: PriorityString ): number;\n\n\treadonly highest: number;\n\treadonly high: number;\n\treadonly normal: number;\n\treadonly low: number;\n\treadonly lowest: number;\n}\n\n/**\n * Provides group of constants to use instead of hardcoding numeric priority values.\n */\nconst priorities: PrioritiesType = {\n\tget( priority: PriorityString = 'normal' ): number {\n\t\tif ( typeof priority != 'number' ) {\n\t\t\treturn this[ priority ] || this.normal;\n\t\t} else {\n\t\t\treturn priority;\n\t\t}\n\t},\n\n\thighest: 100000,\n\thigh: 1000,\n\tnormal: 0,\n\tlow: -1000,\n\tlowest: -100000\n};\n\nexport default priorities;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport priorities, { type PriorityString } from './priorities';\n\n/**\n * @module utils/inserttopriorityarray\n */\n\n/**\n * The priority object descriptor.\n *\n * ```ts\n * const objectWithPriority = {\n * \tpriority: 'high'\n * }\n * ```\n */\nexport interface ObjectWithPriority {\n\n\t/**\n\t * Priority of the object.\n\t */\n\tpriority: PriorityString;\n}\n\n/**\n * Inserts any object with priority at correct index by priority so registered objects are always sorted from highest to lowest priority.\n *\n * @param objects Array of objects with priority to insert object to.\n * @param objectToInsert Object with `priority` property.\n */\nexport default function insertToPriorityArray<T extends ObjectWithPriority>( objects: Array<T>, objectToInsert: T ): void {\n\tconst priority = priorities.get( objectToInsert.priority );\n\n\tfor ( let i = 0; i < objects.length; i++ ) {\n\t\tif ( priorities.get( objects[ i ].priority ) < priority ) {\n\t\t\tobjects.splice( i, 0, objectToInsert );\n\n\t\t\treturn;\n\t\t}\n\t}\n\n\tobjects.push( objectToInsert );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/ckeditorerror\n */\n\n/* globals console */\n\n/**\n * URL to the documentation with error codes.\n */\nexport const DOCUMENTATION_URL = 'https://ckeditor.com/docs/ckeditor5/latest/support/error-codes.html';\n\n/**\n * The CKEditor error class.\n *\n * You should throw `CKEditorError` when:\n *\n * * An unexpected situation occurred and the editor (most probably) will not work properly. Such exception will be handled\n * by the {@link module:watchdog/watchdog~Watchdog watchdog} (if it is integrated),\n * * If the editor is incorrectly integrated or the editor API is used in the wrong way. This way you will give\n * feedback to the developer as soon as possible. Keep in mind that for common integration issues which should not\n * stop editor initialization (like missing upload adapter, wrong name of a toolbar component) we use\n * {@link module:utils/ckeditorerror~logWarning `logWarning()`} and\n * {@link module:utils/ckeditorerror~logError `logError()`}\n * to improve developers experience and let them see the a working editor as soon as possible.\n *\n * ```ts\n * /**\n *  * Error thrown when a plugin cannot be loaded due to JavaScript errors, lack of plugins with a given name, etc.\n *  *\n *  * @error plugin-load\n *  * @param pluginName The name of the plugin that could not be loaded.\n *  * @param moduleName The name of the module which tried to load this plugin.\n *  *\\/\n * throw new CKEditorError( 'plugin-load', {\n * \tpluginName: 'foo',\n * \tmoduleName: 'bar'\n * } );\n * ```\n */\nexport default class CKEditorError extends Error {\n\t/**\n\t * A context of the error by which the Watchdog is able to determine which editor crashed.\n\t */\n\tpublic readonly context: object | null | undefined;\n\n\t/**\n\t * The additional error data passed to the constructor. Undefined if none was passed.\n\t */\n\tpublic readonly data?: object;\n\n\t/**\n\t * Creates an instance of the CKEditorError class.\n\t *\n\t * @param errorName The error id in an `error-name` format. A link to this error documentation page will be added\n\t * to the thrown error's `message`.\n\t * @param context A context of the error by which the {@link module:watchdog/watchdog~Watchdog watchdog}\n\t * is able to determine which editor crashed. It should be an editor instance or a property connected to it. It can be also\n\t * a `null` value if the editor should not be restarted in case of the error (e.g. during the editor initialization).\n\t * The error context should be checked using the `areConnectedThroughProperties( editor, context )` utility\n\t * to check if the object works as the context.\n\t * @param data Additional data describing the error. A stringified version of this object\n\t * will be appended to the error message, so the data are quickly visible in the console. The original\n\t * data object will also be later available under the {@link #data} property.\n\t */\n\tconstructor( errorName: string, context?: object | null, data?: object ) {\n\t\tsuper( getErrorMessage( errorName, data ) );\n\n\t\tthis.name = 'CKEditorError';\n\t\tthis.context = context;\n\t\tthis.data = data;\n\t}\n\n\t/**\n\t * Checks if the error is of the `CKEditorError` type.\n\t */\n\tpublic is( type: string ): boolean {\n\t\treturn type === 'CKEditorError';\n\t}\n\n\t/**\n\t * A utility that ensures that the thrown error is a {@link module:utils/ckeditorerror~CKEditorError} one.\n\t * It is useful when combined with the {@link module:watchdog/watchdog~Watchdog} feature, which can restart the editor in case\n\t * of a {@link module:utils/ckeditorerror~CKEditorError} error.\n\t *\n\t * @param err The error to rethrow.\n\t * @param context An object connected through properties with the editor instance. This context will be used\n\t * by the watchdog to verify which editor should be restarted.\n\t */\n\tpublic static rethrowUnexpectedError( err: Error, context: object ): never {\n\t\tif ( ( err as any ).is && ( err as any ).is( 'CKEditorError' ) ) {\n\t\t\tthrow err;\n\t\t}\n\n\t\t/**\n\t\t * An unexpected error occurred inside the CKEditor 5 codebase. This error will look like the original one\n\t\t * to make the debugging easier.\n\t\t *\n\t\t * This error is only useful when the editor is initialized using the {@link module:watchdog/watchdog~Watchdog} feature.\n\t\t * In case of such error (or any {@link module:utils/ckeditorerror~CKEditorError} error) the watchdog should restart the editor.\n\t\t *\n\t\t * @error unexpected-error\n\t\t */\n\t\tconst error = new CKEditorError( err.message, context );\n\n\t\t// Restore the original stack trace to make the error look like the original one.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/5595 for more details.\n\t\terror.stack = err.stack;\n\n\t\tthrow error;\n\t}\n}\n\n/**\n * Logs a warning to the console with a properly formatted message and adds a link to the documentation.\n * Use whenever you want to log a warning to the console.\n *\n * ```ts\n * /**\n *  * There was a problem processing the configuration of the toolbar. The item with the given\n *  * name does not exist, so it was omitted when rendering the toolbar.\n *  *\n *  * @error toolbarview-item-unavailable\n *  * @param {String} name The name of the component.\n *  *\\/\n * logWarning( 'toolbarview-item-unavailable', { name } );\n * ```\n *\n * See also {@link module:utils/ckeditorerror~CKEditorError} for an explanation when to throw an error and when to log\n * a warning or an error to the console.\n *\n * @param errorName The error name to be logged.\n * @param data Additional data to be logged.\n */\nexport function logWarning( errorName: string, data?: object ): void {\n\tconsole.warn( ...formatConsoleArguments( errorName, data ) );\n}\n\n/**\n * Logs an error to the console with a properly formatted message and adds a link to the documentation.\n * Use whenever you want to log an error to the console.\n *\n * ```ts\n * /**\n *  * There was a problem processing the configuration of the toolbar. The item with the given\n *  * name does not exist, so it was omitted when rendering the toolbar.\n *  *\n *  * @error toolbarview-item-unavailable\n *  * @param {String} name The name of the component.\n *  *\\/\n *  logError( 'toolbarview-item-unavailable', { name } );\n * ```\n *\n * **Note**: In most cases logging a warning using {@link module:utils/ckeditorerror~logWarning} is enough.\n *\n * See also {@link module:utils/ckeditorerror~CKEditorError} for an explanation when to use each method.\n *\n * @param errorName The error name to be logged.\n * @param data Additional data to be logged.\n */\nexport function logError( errorName: string, data?: object ): void {\n\tconsole.error( ...formatConsoleArguments( errorName, data ) );\n}\n\n/**\n * Returns formatted link to documentation message.\n */\nfunction getLinkToDocumentationMessage( errorName: string ): string {\n\treturn `\\nRead more: ${ DOCUMENTATION_URL }#error-${ errorName }`;\n}\n\n/**\n * Returns formatted error message.\n */\nfunction getErrorMessage( errorName: string, data?: object ): string {\n\tconst processedObjects = new WeakSet();\n\tconst circularReferencesReplacer = ( key: string, value: unknown ) => {\n\t\tif ( typeof value === 'object' && value !== null ) {\n\t\t\tif ( processedObjects.has( value ) ) {\n\t\t\t\treturn `[object ${ value.constructor.name }]`;\n\t\t\t}\n\n\t\t\tprocessedObjects.add( value );\n\t\t}\n\n\t\treturn value;\n\t};\n\n\tconst stringifiedData = data ? ` ${ JSON.stringify( data, circularReferencesReplacer ) }` : '';\n\tconst documentationLink = getLinkToDocumentationMessage( errorName );\n\n\treturn errorName + stringifiedData + documentationLink;\n}\n\n/**\n * Returns formatted console error arguments.\n */\nfunction formatConsoleArguments( errorName: string, data?: object ): Array<unknown> {\n\tconst documentationMessage = getLinkToDocumentationMessage( errorName );\n\n\treturn data ? [ errorName, data, documentationMessage ] : [ errorName, documentationMessage ];\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/version\n */\n\n/* globals window, global */\n\nimport CKEditorError from './ckeditorerror';\n\nconst version = '35.4.0';\n\nexport default version;\n\n/* istanbul ignore next */\nconst windowOrGlobal = typeof window === 'object' ? window : global;\n\ndeclare global {\n\t// eslint-disable-next-line no-var\n\tvar CKEDITOR_VERSION: string;\n}\n\n/* istanbul ignore next */\nif ( windowOrGlobal.CKEDITOR_VERSION ) {\n\t/**\n\t * This error is thrown when due to a mistake in how CKEditor 5 was installed or initialized, some\n\t * of its modules were duplicated (evaluated and executed twice). Module duplication leads to inevitable runtime\n\t * errors.\n\t *\n\t * There are many situations in which some modules can be loaded twice. In the worst case scenario,\n\t * you may need to check your project for each of these issues and fix them all.\n\t *\n\t * # Trying to add a plugin to an existing build\n\t *\n\t * If you import an existing CKEditor 5 build and a plugin like this:\n\t *\n\t * ```ts\n\t * import ClassicEditor from '@ckeditor/ckeditor5-build-classic';\n\t * import Highlight from '@ckeditor/ckeditor5-highlight/src/highlight';\n\t * ```\n\t *\n\t * Then your project loads some CKEditor 5 packages twice. How does it happen?\n\t *\n\t * The build package contains a file which is already compiled with webpack. This means\n\t * that it contains all the necessary code from e.g. `@ckeditor/ckeditor5-engine` and `@ckeditor/ckeditor5-utils`.\n\t *\n\t * However, the `Highlight` plugin imports some of the modules from these packages, too. If you ask webpack to\n\t * build such a project, you will end up with the modules being included (and run) twice &mdash; first, because they are\n\t * included inside the build package, and second, because they are required by the `Highlight` plugin.\n\t *\n\t * Therefore, **you must never add plugins to an existing build** unless your plugin has no dependencies.\n\t *\n\t * Adding plugins to a build is done by taking the source version of this build (so, before it was built with webpack)\n\t * and adding plugins there. In this situation, webpack will know that it only needs to load each plugin once.\n\t *\n\t * Read more in the {@glink installation/getting-started/installing-plugins \"Installing plugins\"} guide.\n\t *\n\t * # Confused an editor build with an editor implementation\n\t *\n\t * This scenario is very similar to the previous one, but has a different origin.\n\t *\n\t * Let's assume that you wanted to use CKEditor 5 from source, as explained in the\n\t * {@glink installation/advanced/alternative-setups/integrating-from-source \"Building from source\"} section\n\t * or in the {@glink framework/guides/quick-start \"Quick start\"} guide of CKEditor 5 Framework.\n\t *\n\t * The correct way to do so is to import an editor and plugins and run them together like this:\n\t *\n\t * ```ts\n\t * import ClassicEditor from '@ckeditor/ckeditor5-editor-classic/src/classiceditor';\n\t * import Essentials from '@ckeditor/ckeditor5-essentials/src/essentials';\n\t * import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';\n\t * import Bold from '@ckeditor/ckeditor5-basic-styles/src/bold';\n\t * import Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';\n\t *\n\t * ClassicEditor\n\t * \t.create( document.querySelector( '#editor' ), {\n\t * \t\tplugins: [ Essentials, Paragraph, Bold, Italic ],\n\t * \t\ttoolbar: [ 'bold', 'italic' ]\n\t * \t} )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t * \t} )\n\t * \t.catch( error => {\n\t * \t\tconsole.error( error.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * However, you might have mistakenly imported a build instead of the source `ClassicEditor`. In this case\n\t * your imports will look like this:\n\t *\n\t * ```ts\n\t * import ClassicEditor from '@ckeditor/ckeditor5-build-classic';\n\t * import Essentials from '@ckeditor/ckeditor5-essentials/src/essentials';\n\t * import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';\n\t * import Bold from '@ckeditor/ckeditor5-basic-styles/src/bold';\n\t * import Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';\n\t * ```\n\t *\n\t * This creates the same situation as in the previous section because you use a build together with source plugins.\n\t *\n\t * Remember: `@ckeditor/ckeditor5-build-*` packages contain editor builds and `@ckeditor/ckeditor5-editor-*` contain source editors.\n\t *\n\t * # Loading two or more builds on one page\n\t *\n\t * If you use CKEditor 5 builds, you might have loaded two (or more) `ckeditor.js` files on one web page.\n\t * Check your web page for duplicated `<script>` elements or make sure your page builder/bundler includes CKEditor only once.\n\t *\n\t * If you want to use two different types of editors at once, see the\n\t * {@glink installation/advanced/using-two-editors \"Using two different editors\"}\n\t * section.\n\t *\n\t * # Using outdated packages\n\t *\n\t * Building CKEditor 5 from source requires using multiple npm packages. These packages have their dependencies\n\t * to other packages. If you use the latest version of, for example, `@ckeditor/ckeditor5-editor-classic` with\n\t * an outdated version of `@ckeditor/ckeditor5-image`, npm or yarn will need to install two different versions of\n\t * `@ckeditor/ckeditor5-core` because `@ckeditor/ckeditor5-editor-classic` and `@ckeditor/ckeditor5-image` may require\n\t * different versions of the core package.\n\t *\n\t * The solution to this issue is to update all packages to their latest version. We recommend\n\t * using tools like [`npm-check-updates`](https://www.npmjs.com/package/npm-check-updates) which simplify this process.\n\t *\n\t * # Conflicting version of dependencies\n\t *\n\t * This is a special case of the previous scenario. If you use CKEditor 5 with some third-party plugins,\n\t * it may happen that even if you use the latest versions of the official packages and the latest version of\n\t * these third-party packages, there will be a conflict between some of their dependencies.\n\t *\n\t * Such a problem can be resolved by either downgrading CKEditor 5 packages (which we do not recommend) or\n\t * asking the author of the third-party package to upgrade its depdendencies (or forking their project and doing this yourself).\n\t *\n\t * **Note:** All official CKEditor 5 packages (excluding integrations and `ckeditor5-dev-*` packages) are released in the\n\t * same major version. This is &mdash; in the `x.y.z`, the `x` is the same for all packages. This is the simplest way to check\n\t * whether you use packages coming from the same CKEditor 5 version. You can read more about versioning in the\n\t * {@glink updating/versioning-policy Versioning policy} guide.\n\t *\n\t * # Packages were duplicated in `node_modules`\n\t *\n\t * In some situations, especially when calling `npm install` multiple times, it may happen\n\t * that npm will not correctly \"deduplicate\" packages.\n\t *\n\t * Normally, npm deduplicates all packages so, for example, `@ckeditor/ckeditor5-core` is installed only once in `node_modules/`.\n\t * However, it is known to fail to do so from time to time.\n\t *\n\t * We recommend checking if any of the steps listed below help:\n\t *\n\t * * `rm -rf node_modules && npm install` to make sure you have a clean `node_modules/` directory. This step\n\t * is known to help in most cases.\n\t * * If you use `yarn.lock` or `package-lock.json`, remove it before `npm install`.\n\t * * Check whether all CKEditor 5 packages are up to date and reinstall them\n\t * if you changed anything (`rm -rf node_modules && npm install`).\n\t *\n\t * If all packages are correct and compatible with each other, the steps above are known to help. If not, you may\n\t * try to check with `npm ls` how many times packages like `@ckeditor/ckeditor5-core`, `@ckeditor/ckeditor5-engine` and\n\t *`@ckeditor/ckeditor5-utils` are installed. If more than once, verify which package causes that.\n\t *\n\t * @error ckeditor-duplicated-modules\n\t */\n\tthrow new CKEditorError(\n\t\t'ckeditor-duplicated-modules',\n\t\tnull\n\t);\n} else {\n\twindowOrGlobal.CKEDITOR_VERSION = version;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/emittermixin\n */\n\nimport EventInfo from './eventinfo';\nimport uid from './uid';\nimport priorities, { type PriorityString } from './priorities';\nimport insertToPriorityArray from './inserttopriorityarray';\n\n// To check if component is loaded more than once.\nimport './version';\nimport CKEditorError from './ckeditorerror';\n\nconst _listeningTo = Symbol( 'listeningTo' );\nconst _emitterId = Symbol( 'emitterId' );\nconst _delegations = Symbol( 'delegations' );\n\nconst defaultEmitterClass = EmitterMixin( Object );\n\n/**\n * Mixin that injects the {@link ~Emitter events API} into its host.\n *\n * This function creates a class that inherits from the provided `base` and implements `Emitter` interface.\n *\n * ```ts\n * class BaseClass { ... }\n *\n * class MyClass extends EmitterMixin( BaseClass ) {\n * \t// This class derives from `BaseClass` and implements the `Emitter` interface.\n * }\n * ```\n *\n * Read more about the concept of emitters in the:\n * * {@glink framework/guides/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/guides/architecture/core-editor-architecture Core editor architecture} guide.\n * * {@glink framework/guides/deep-dive/event-system Event system} deep-dive guide.\n */\nexport default function EmitterMixin<Base extends abstract new ( ...args: Array<any> ) => object>(\n\tbase: Base\n): {\n\tnew ( ...args: ConstructorParameters<Base> ): InstanceType<Base> & Emitter;\n\tprototype: InstanceType<Base> & Emitter;\n};\n\n/**\n * Mixin that injects the {@link ~Emitter events API} into its host.\n *\n * This function creates a class that implements `Emitter` interface.\n *\n * ```ts\n * class MyClass extends EmitterMixin() {\n * \t// This class implements the `Emitter` interface.\n * }\n * ```\n *\n * Read more about the concept of emitters in the:\n * * {@glink framework/guides/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/guides/architecture/core-editor-architecture Core editor architecture} guide.\n * * {@glink framework/guides/deep-dive/event-system Event system} deep dive guide.\n */\nexport default function EmitterMixin(): {\n\tnew (): Emitter;\n\tprototype: Emitter;\n};\n\nexport default function EmitterMixin( base?: abstract new( ...args: Array<any> ) => object ): unknown {\n\tif ( !base ) {\n\t\treturn defaultEmitterClass;\n\t}\n\n\tabstract class Mixin extends base implements EmitterInternal {\n\t\tpublic on<TEvent extends BaseEvent>(\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions?: CallbackOptions\n\t\t): void {\n\t\t\tthis.listenTo( this, event, callback, options );\n\t\t}\n\n\t\tpublic once<TEvent extends BaseEvent>(\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions?: CallbackOptions\n\t\t): void {\n\t\t\tlet wasFired = false;\n\n\t\t\tconst onceCallback: typeof callback = ( event, ...args ) => {\n\t\t\t\t// Ensure the callback is called only once even if the callback itself leads to re-firing the event\n\t\t\t\t// (which would call the callback again).\n\t\t\t\tif ( !wasFired ) {\n\t\t\t\t\twasFired = true;\n\n\t\t\t\t\t// Go off() at the first call.\n\t\t\t\t\tevent.off();\n\n\t\t\t\t\t// Go with the original callback.\n\t\t\t\t\tcallback.call( this, event, ...args );\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// Make a similar on() call, simply replacing the callback.\n\t\t\tthis.listenTo( this, event, onceCallback, options );\n\t\t}\n\n\t\tpublic off( event: string, callback: Function ): void {\n\t\t\tthis.stopListening( this, event, callback );\n\t\t}\n\n\t\tpublic listenTo<TEvent extends BaseEvent>(\n\t\t\temitter: Emitter,\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions: CallbackOptions = {}\n\t\t): void {\n\t\t\tlet emitterInfo, eventCallbacks;\n\n\t\t\t// _listeningTo contains a list of emitters that this object is listening to.\n\t\t\t// This list has the following format:\n\t\t\t//\n\t\t\t// _listeningTo: {\n\t\t\t//     emitterId: {\n\t\t\t//         emitter: emitter,\n\t\t\t//         callbacks: {\n\t\t\t//             event1: [ callback1, callback2, ... ]\n\t\t\t//             ....\n\t\t\t//         }\n\t\t\t//     },\n\t\t\t//     ...\n\t\t\t// }\n\n\t\t\tif ( !this[ _listeningTo ] ) {\n\t\t\t\tthis[ _listeningTo ] = {};\n\t\t\t}\n\n\t\t\tconst emitters = this[ _listeningTo ]!;\n\n\t\t\tif ( !_getEmitterId( emitter ) ) {\n\t\t\t\t_setEmitterId( emitter );\n\t\t\t}\n\n\t\t\tconst emitterId = _getEmitterId( emitter )!;\n\n\t\t\tif ( !( emitterInfo = emitters[ emitterId ] ) ) {\n\t\t\t\temitterInfo = emitters[ emitterId ] = {\n\t\t\t\t\temitter,\n\t\t\t\t\tcallbacks: {}\n\t\t\t\t};\n\t\t\t}\n\n\t\t\tif ( !( eventCallbacks = emitterInfo.callbacks[ event ] ) ) {\n\t\t\t\teventCallbacks = emitterInfo.callbacks[ event ] = [];\n\t\t\t}\n\n\t\t\teventCallbacks.push( callback );\n\n\t\t\t// Finally register the callback to the event.\n\t\t\taddEventListener( this, emitter, event, callback, options );\n\t\t}\n\n\t\tpublic stopListening( emitter?: Emitter, event?: string, callback?: Function ): void {\n\t\t\tconst emitters = this[ _listeningTo ];\n\t\t\tlet emitterId = emitter && _getEmitterId( emitter );\n\t\t\tconst emitterInfo = ( emitters && emitterId ) ? emitters[ emitterId ] : undefined;\n\t\t\tconst eventCallbacks = ( emitterInfo && event ) ? emitterInfo.callbacks[ event ] : undefined;\n\n\t\t\t// Stop if nothing has been listened.\n\t\t\tif ( !emitters || ( emitter && !emitterInfo ) || ( event && !eventCallbacks ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// All params provided. off() that single callback.\n\t\t\tif ( callback ) {\n\t\t\t\tremoveEventListener( this, emitter!, event!, callback );\n\n\t\t\t\t// We must remove callbacks as well in order to prevent memory leaks.\n\t\t\t\t// See https://github.com/ckeditor/ckeditor5/pull/8480\n\t\t\t\tconst index = eventCallbacks!.indexOf( callback );\n\n\t\t\t\tif ( index !== -1 ) {\n\t\t\t\t\tif ( eventCallbacks!.length === 1 ) {\n\t\t\t\t\t\tdelete emitterInfo!.callbacks[ event! ];\n\t\t\t\t\t} else {\n\t\t\t\t\t\tremoveEventListener( this, emitter!, event!, callback );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\t// Only `emitter` and `event` provided. off() all callbacks for that event.\n\t\t\telse if ( eventCallbacks ) {\n\t\t\t\twhile ( ( callback = eventCallbacks.pop() ) ) {\n\t\t\t\t\tremoveEventListener( this, emitter!, event!, callback );\n\t\t\t\t}\n\n\t\t\t\tdelete emitterInfo!.callbacks[ event! ];\n\t\t\t}\n\t\t\t// Only `emitter` provided. off() all events for that emitter.\n\t\t\telse if ( emitterInfo ) {\n\t\t\t\tfor ( event in emitterInfo.callbacks ) {\n\t\t\t\t\tthis.stopListening( emitter!, event );\n\t\t\t\t}\n\t\t\t\tdelete emitters[ emitterId! ];\n\t\t\t}\n\t\t\t// No params provided. off() all emitters.\n\t\t\telse {\n\t\t\t\tfor ( emitterId in emitters ) {\n\t\t\t\t\tthis.stopListening( emitters[ emitterId ].emitter );\n\t\t\t\t}\n\t\t\t\tdelete this[ _listeningTo ];\n\t\t\t}\n\t\t}\n\n\t\tpublic fire<TEvent extends BaseEvent>(\n\t\t\teventOrInfo: GetNameOrEventInfo<TEvent>,\n\t\t\t...args: TEvent[ 'args' ]\n\t\t): GetEventInfo<TEvent>[ 'return' ] {\n\t\t\ttry {\n\t\t\t\tconst eventInfo = eventOrInfo instanceof EventInfo ? eventOrInfo : new EventInfo( this, eventOrInfo );\n\t\t\t\tconst event = eventInfo.name;\n\t\t\t\tlet callbacks = getCallbacksForEvent( this, event );\n\n\t\t\t\t// Record that the event passed this emitter on its path.\n\t\t\t\teventInfo.path.push( this );\n\n\t\t\t\t// Handle event listener callbacks first.\n\t\t\t\tif ( callbacks ) {\n\t\t\t\t\t// Arguments passed to each callback.\n\t\t\t\t\tconst callbackArgs = [ eventInfo, ...args ];\n\n\t\t\t\t\t// Copying callbacks array is the easiest and most secure way of preventing infinite loops, when event callbacks\n\t\t\t\t\t// are added while processing other callbacks. Previous solution involved adding counters (unique ids) but\n\t\t\t\t\t// failed if callbacks were added to the queue before currently processed callback.\n\t\t\t\t\t// If this proves to be too inefficient, another method is to change `.on()` so callbacks are stored if same\n\t\t\t\t\t// event is currently processed. Then, `.fire()` at the end, would have to add all stored events.\n\t\t\t\t\tcallbacks = Array.from( callbacks );\n\n\t\t\t\t\tfor ( let i = 0; i < callbacks.length; i++ ) {\n\t\t\t\t\t\tcallbacks[ i ].callback.apply( this, callbackArgs );\n\n\t\t\t\t\t\t// Remove the callback from future requests if off() has been called.\n\t\t\t\t\t\tif ( eventInfo.off.called ) {\n\t\t\t\t\t\t\t// Remove the called mark for the next calls.\n\t\t\t\t\t\t\tdelete eventInfo.off.called;\n\n\t\t\t\t\t\t\tthis._removeEventListener( event, callbacks[ i ].callback );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Do not execute next callbacks if stop() was called.\n\t\t\t\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Delegate event to other emitters if needed.\n\t\t\t\tconst delegations = this[ _delegations ];\n\n\t\t\t\tif ( delegations ) {\n\t\t\t\t\tconst destinations = delegations.get( event );\n\t\t\t\t\tconst passAllDestinations = delegations.get( '*' );\n\n\t\t\t\t\tif ( destinations ) {\n\t\t\t\t\t\tfireDelegatedEvents( destinations, eventInfo, args );\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( passAllDestinations ) {\n\t\t\t\t\t\tfireDelegatedEvents( passAllDestinations, eventInfo, args );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn eventInfo.return;\n\t\t\t} catch ( err ) {\n\t\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t\t/* istanbul ignore next */\n\t\t\t\tCKEditorError.rethrowUnexpectedError( err as Error, this );\n\t\t\t}\n\t\t}\n\n\t\tpublic delegate( ...events: Array<string> ): EmitterMixinDelegateChain {\n\t\t\treturn {\n\t\t\t\tto: ( emitter, nameOrFunction ) => {\n\t\t\t\t\tif ( !this[ _delegations ] ) {\n\t\t\t\t\t\tthis[ _delegations ] = new Map();\n\t\t\t\t\t}\n\n\t\t\t\t\t// Originally there was a for..of loop which unfortunately caused an error in Babel that didn't allow\n\t\t\t\t\t// build an application. See: https://github.com/ckeditor/ckeditor5-react/issues/40.\n\t\t\t\t\tevents.forEach( eventName => {\n\t\t\t\t\t\tconst destinations = this[ _delegations ]!.get( eventName );\n\n\t\t\t\t\t\tif ( !destinations ) {\n\t\t\t\t\t\t\tthis[ _delegations ]!.set( eventName, new Map( [ [ emitter, nameOrFunction ] ] ) );\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tdestinations.set( emitter, nameOrFunction );\n\t\t\t\t\t\t}\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\n\t\tpublic stopDelegating( event?: string, emitter?: Emitter ): void {\n\t\t\tif ( !this[ _delegations ] ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !event ) {\n\t\t\t\tthis[ _delegations ]!.clear();\n\t\t\t} else if ( !emitter ) {\n\t\t\t\tthis[ _delegations ]!.delete( event );\n\t\t\t} else {\n\t\t\t\tconst destinations = this[ _delegations ]!.get( event );\n\n\t\t\t\tif ( destinations ) {\n\t\t\t\t\tdestinations.delete( emitter );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tpublic _addEventListener<TEvent extends BaseEvent>(\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions: CallbackOptions\n\t\t): void {\n\t\t\tcreateEventNamespace( this, event );\n\n\t\t\tconst lists = getCallbacksListsForNamespace( this, event );\n\t\t\tconst priority = priorities.get( options.priority );\n\n\t\t\tconst callbackDefinition = {\n\t\t\t\tcallback,\n\t\t\t\tpriority\n\t\t\t};\n\n\t\t\t// Add the callback to all callbacks list.\n\t\t\tfor ( const callbacks of lists ) {\n\t\t\t\t// Add the callback to the list in the right priority position.\n\t\t\t\tinsertToPriorityArray( callbacks, callbackDefinition );\n\t\t\t}\n\t\t}\n\n\t\tpublic _removeEventListener( event: string, callback: Function ): void {\n\t\t\tconst lists = getCallbacksListsForNamespace( this, event );\n\n\t\t\tfor ( const callbacks of lists ) {\n\t\t\t\tfor ( let i = 0; i < callbacks.length; i++ ) {\n\t\t\t\t\tif ( callbacks[ i ].callback == callback ) {\n\t\t\t\t\t\t// Remove the callback from the list (fixing the next index).\n\t\t\t\t\t\tcallbacks.splice( i, 1 );\n\t\t\t\t\t\ti--;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tpublic _events?: { [ eventName: string ]: EventNode };\n\n\t\tpublic [ _emitterId ]?: string;\n\n\t\tpublic [ _listeningTo ]?: {\n\t\t\t[ emitterId: string ]: {\n\t\t\t\temitter: Emitter;\n\t\t\t\tcallbacks: { [ event: string]: Array<Function> };\n\t\t\t};\n\t\t};\n\n\t\tpublic [ _delegations ]?: Map<string, Map<Emitter, string | ( ( name: string ) => string ) | undefined>>;\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`\n( [\n\t'on', 'once', 'off', 'listenTo',\n\t'stopListening', 'fire', 'delegate', 'stopDelegating',\n\t'_addEventListener', '_removeEventListener'\n] ).forEach( key => {\n\t( EmitterMixin as any )[ key ] = ( defaultEmitterClass.prototype as any )[ key ];\n} );\n\n/**\n * Emitter/listener interface.\n *\n * Can be easily implemented by a class by mixing the {@link module:utils/emittermixin~EmitterMixin} mixin.\n *\n * ```ts\n * class MyClass extends EmitterMixin() {\n * \t// This class now implements the `Emitter` interface.\n * }\n * ```\n *\n * Read more about the usage of this interface in the:\n * * {@glink framework/guides/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/guides/architecture/core-editor-architecture Core editor architecture} guide.\n * * {@glink framework/guides/deep-dive/event-system Event system} deep-dive guide.\n */\nexport interface Emitter {\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired.\n\t *\n\t * Shorthand for {@link #listenTo `this.listenTo( this, event, callback, options )`} (it makes the emitter\n\t * listen on itself).\n\t *\n\t * @typeParam TEvent The type descibing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\ton<TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void;\n\n\t/**\n\t * Registers a callback function to be executed on the next time the event is fired only. This is similar to\n\t * calling {@link #on} followed by {@link #off} in the callback.\n\t *\n\t * @typeParam TEvent The type descibing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tonce<TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void;\n\n\t/**\n\t * Stops executing the callback on the given event.\n\t * Shorthand for {@link #stopListening `this.stopListening( this, event, callback )`}.\n\t *\n\t * @param event The name of the event.\n\t * @param callback The function to stop being called.\n\t */\n\toff( event: string, callback: Function ): void;\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired in a specific (emitter) object.\n\t *\n\t * Events can be grouped in namespaces using `:`.\n\t * When namespaced event is fired, it additionally fires all callbacks for that namespace.\n\t *\n\t * ```ts\n\t * // myEmitter.on( ... ) is a shorthand for myEmitter.listenTo( myEmitter, ... ).\n\t * myEmitter.on( 'myGroup', genericCallback );\n\t * myEmitter.on( 'myGroup:myEvent', specificCallback );\n\t *\n\t * // genericCallback is fired.\n\t * myEmitter.fire( 'myGroup' );\n\t * // both genericCallback and specificCallback are fired.\n\t * myEmitter.fire( 'myGroup:myEvent' );\n\t * // genericCallback is fired even though there are no callbacks for \"foo\".\n\t * myEmitter.fire( 'myGroup:foo' );\n\t * ```\n\t *\n\t * An event callback can {@link module:utils/eventinfo~EventInfo#stop stop the event} and\n\t * set the {@link module:utils/eventinfo~EventInfo#return return value} of the {@link #fire} method.\n\t *\n\t * @typeParam TEvent The type descibing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param emitter The object that fires the event.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tlistenTo<TEvent extends BaseEvent>(\n\t\temitter: Emitter,\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void;\n\n\t/**\n\t * Stops listening for events. It can be used at different levels:\n\t *\n\t * * To stop listening to a specific callback.\n\t * * To stop listening to a specific event.\n\t * * To stop listening to all events fired by a specific object.\n\t * * To stop listening to all events fired by all objects.\n\t *\n\t * @param emitter The object to stop listening to. If omitted, stops it for all objects.\n\t * @param event (Requires the `emitter`) The name of the event to stop listening to. If omitted, stops it\n\t * for all events from `emitter`.\n\t * @param callback (Requires the `event`) The function to be removed from the call list for the given\n\t * `event`.\n\t */\n\tstopListening( emitter?: Emitter, event?: string, callback?: Function ): void;\n\n\t/**\n\t * Fires an event, executing all callbacks registered for it.\n\t *\n\t * The first parameter passed to callbacks is an {@link module:utils/eventinfo~EventInfo} object,\n\t * followed by the optional `args` provided in the `fire()` method call.\n\t *\n\t * @typeParam TEvent The type descibing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param eventOrInfo The name of the event or `EventInfo` object if event is delegated.\n\t * @param args Additional arguments to be passed to the callbacks.\n\t * @returns By default the method returns `undefined`. However, the return value can be changed by listeners\n\t * through modification of the {@link module:utils/eventinfo~EventInfo#return `evt.return`}'s property (the event info\n\t * is the first param of every callback).\n\t */\n\tfire<TEvent extends BaseEvent>(\n\t\teventOrInfo: GetNameOrEventInfo<TEvent>,\n\t\t...args: TEvent[ 'args' ]\n\t): GetEventInfo<TEvent>[ 'return' ];\n\n\t/**\n\t * Delegates selected events to another {@link module:utils/emittermixin~Emitter}. For instance:\n\t *\n\t * ```ts\n\t * emitterA.delegate( 'eventX' ).to( emitterB );\n\t * emitterA.delegate( 'eventX', 'eventY' ).to( emitterC );\n\t * ```\n\t *\n\t * then `eventX` is delegated (fired by) `emitterB` and `emitterC` along with `data`:\n\t *\n\t * ```ts\n\t * emitterA.fire( 'eventX', data );\n\t * ```\n\t *\n\t * and `eventY` is delegated (fired by) `emitterC` along with `data`:\n\t *\n\t * ```ts\n\t * emitterA.fire( 'eventY', data );\n\t * ```\n\t *\n\t * @param events Event names that will be delegated to another emitter.\n\t */\n\tdelegate( ...events: Array<string> ): EmitterMixinDelegateChain;\n\n\t/**\n\t * Stops delegating events. It can be used at different levels:\n\t *\n\t * * To stop delegating all events.\n\t * * To stop delegating a specific event to all emitters.\n\t * * To stop delegating a specific event to a specific emitter.\n\t *\n\t * @param event The name of the event to stop delegating. If omitted, stops it all delegations.\n\t * @param emitter (requires `event`) The object to stop delegating a particular event to.\n\t * If omitted, stops delegation of `event` to all emitters.\n\t */\n\tstopDelegating( event?: string, emitter?: Emitter ): void;\n}\n\ninterface EmitterInternal extends Emitter {\n\n\t/**\n\t * Adds callback to emitter for given event.\n\t *\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\t_addEventListener?: <TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions: CallbackOptions\n\t) => void;\n\n\t/**\n\t * Removes callback from emitter for given event.\n\t *\n\t * @param event The name of the event.\n\t * @param callback The function to stop being called.\n\t */\n\t_removeEventListener?: ( event: string, callback: Function ) => void;\n\n\t_events?: { [ eventName: string ]: EventNode };\n\n\t[ _emitterId ]?: string;\n\n\t[ _listeningTo ]?: {\n\t\t[ emitterId: string ]: {\n\t\t\temitter: Emitter;\n\t\t\tcallbacks: { [ event: string]: Array<Function> };\n\t\t};\n\t};\n\n\t[ _delegations ]?: Map<string, Map<Emitter, string | ( ( name: string ) => string ) | undefined>>;\n}\n\n/**\n * Default type describing any event.\n *\n * Every custom event has to be compatible with `BaseEvent`.\n *\n * ```ts\n * type MyEvent = {\n * \t// In `fire<MyEvent>( name )`, `on<MyEvent>( name )`, `once<MyEvent>( name )` and `listenTo<MyEvent>( name )` calls\n * \t// the `name` argument will be type-checked to ensure it's `'myEvent'` or have `'myEvent:'` prefix.\n * \t// Required.\n * \tname: 'myEvent' | `myEvent:${ string }`;\n *\n * \t// In `fire<MyEvent>( name, a, b )` call, `a` and `b` parameters will be type-checked against `number` and `string`.\n * \t// In `on<MyEvent>`, `once<MyEvent>` and `listenTo<MyEvent>` calls, the parameters of provided callback function\n * \t// will be automatically inferred as `EventInfo`, `number` and `string`.\n * \t// Required.\n * \targs: [ number, string ];\n *\n * \t// `fire<MyEvent>` will have return type `boolean | undefined`.\n * \t// Optional, unknown by default.\n * \treturn: boolean;\n *\n * \t// `fire<MyEvent>( eventInfo )` will type-check that `eventInfo` is `MyEventInfo`, not a base `EventInfo` or string.\n * \t// In `on<MyEvent>`, `once<MyEvent>` and `listenTo<MyEvent>` calls, the first callback parameter will be of this type.\n * \t// Optional.\n * \teventInfo: MyEventInfo;\n *\n * \t// In `on<MyEvent>`, `once<MyEvent>` and `listenTo<MyEvent>` calls, the `options` parameter will be of type\n * \t// `{ myOption?: boolean; priority?: PriorityString }\n * \t// Optional.\n * \tcallbackOptions: { myOption?: boolean };\n * };\n * ```\n */\nexport type BaseEvent = {\n\tname: string;\n\targs: Array<any>;\n};\n\n/**\n * Utility type that gets the `EventInfo` subclass for the given event.\n */\nexport type GetEventInfo<TEvent extends BaseEvent> = TEvent extends { eventInfo: EventInfo } ?\n\tTEvent[ 'eventInfo' ] :\n\tEventInfo<TEvent[ 'name' ], ( TEvent extends { return: infer TReturn } ? TReturn : unknown )>;\n\n/**\n * Utility type that gets the `EventInfo` subclass or event name type for the given event.\n */\nexport type GetNameOrEventInfo<TEvent extends BaseEvent> = TEvent extends { eventInfo: EventInfo } ?\n\tTEvent[ 'eventInfo' ] :\n\tTEvent[ 'name' ] | EventInfo<TEvent[ 'name' ], ( TEvent extends { return: infer TReturn } ? TReturn : unknown )>;\n\n/**\n * Utility type that gets the callback type for the given event.\n */\nexport type GetCallback<TEvent extends BaseEvent> = ( this: Emitter, ev: GetEventInfo<TEvent>, ...args: TEvent[ 'args' ] ) => void;\n\n/**\n * Utility type that gets the callback options for the given event.\n */\nexport type GetCallbackOptions<TEvent extends BaseEvent> = TEvent extends { callbackOptions: infer TOptions } ?\n\tTOptions & CallbackOptions :\n\tCallbackOptions;\n\n/**\n * Additional options for registering a callback.\n */\nexport interface CallbackOptions {\n\n\t/**\n\t * The priority of this event callback. The higher\n\t * the priority value the sooner the callback will be fired. Events having the same priority are called in the\n\t * order they were added.\n\t *\n\t * @defaultValue `'normal'`\n\t */\n\treadonly priority?: PriorityString;\n}\n\n/**\n * Checks if `listeningEmitter` listens to an emitter with given `listenedToEmitterId` and if so, returns that emitter.\n * If not, returns `null`.\n *\n * @internal\n * @param listeningEmitter An emitter that listens.\n * @param listenedToEmitterId Unique emitter id of emitter listened to.\n */\nexport function _getEmitterListenedTo( listeningEmitter: Emitter, listenedToEmitterId: string ): Emitter | null {\n\tconst listeningTo = ( listeningEmitter as EmitterInternal )[ _listeningTo ];\n\tif ( listeningTo && listeningTo[ listenedToEmitterId ] ) {\n\t\treturn listeningTo[ listenedToEmitterId ].emitter;\n\t}\n\n\treturn null;\n}\n\n/**\n * Sets emitter's unique id.\n *\n * **Note:** `_emitterId` can be set only once.\n *\n * @internal\n * @param emitter An emitter for which id will be set.\n * @param id Unique id to set. If not passed, random unique id will be set.\n */\nexport function _setEmitterId( emitter: Emitter, id?: string ): void {\n\tif ( !( emitter as EmitterInternal )[ _emitterId ] ) {\n\t\t( emitter as EmitterInternal )[ _emitterId ] = id || uid();\n\t}\n}\n\n/**\n * Returns emitter's unique id.\n *\n * @internal\n * @param emitter An emitter which id will be returned.\n */\nexport function _getEmitterId( emitter: Emitter ): string | undefined {\n\treturn ( emitter as EmitterInternal )[ _emitterId ];\n}\n\ninterface EventNode {\n\tcallbacks: Array<{ callback: Function; priority: number }>;\n\tchildEvents: Array<string>;\n}\n\n/**\n * Gets the internal `_events` property of the given object.\n * `_events` property store all lists with callbacks for registered event names.\n * If there were no events registered on the object, empty `_events` object is created.\n */\nfunction getEvents( source: EmitterInternal ): { [ eventName: string ]: EventNode } {\n\tif ( !source._events ) {\n\t\tObject.defineProperty( source, '_events', {\n\t\t\tvalue: {}\n\t\t} );\n\t}\n\n\treturn source._events!;\n}\n\n/**\n * Creates event node for generic-specific events relation architecture.\n */\nfunction makeEventNode(): EventNode {\n\treturn {\n\t\tcallbacks: [],\n\t\tchildEvents: []\n\t};\n}\n\n/**\n * Creates an architecture for generic-specific events relation.\n * If needed, creates all events for given eventName, i.e. if the first registered event\n * is foo:bar:abc, it will create foo:bar:abc, foo:bar and foo event and tie them together.\n * It also copies callbacks from more generic events to more specific events when\n * specific events are created.\n */\nfunction createEventNamespace( source: EmitterInternal, eventName: string ): void {\n\tconst events = getEvents( source );\n\n\t// First, check if the event we want to add to the structure already exists.\n\tif ( events[ eventName ] ) {\n\t\t// If it exists, we don't have to do anything.\n\t\treturn;\n\t}\n\n\t// In other case, we have to create the structure for the event.\n\t// Note, that we might need to create intermediate events too.\n\t// I.e. if foo:bar:abc is being registered and we only have foo in the structure,\n\t// we need to also register foo:bar.\n\n\t// Currently processed event name.\n\tlet name = eventName;\n\t// Name of the event that is a child event for currently processed event.\n\tlet childEventName = null;\n\n\t// Array containing all newly created specific events.\n\tconst newEventNodes = [];\n\n\t// While loop can't check for ':' index because we have to handle generic events too.\n\t// In each loop, we truncate event name, going from the most specific name to the generic one.\n\t// I.e. foo:bar:abc -> foo:bar -> foo.\n\twhile ( name !== '' ) {\n\t\tif ( events[ name ] ) {\n\t\t\t// If the currently processed event name is already registered, we can be sure\n\t\t\t// that it already has all the structure created, so we can break the loop here\n\t\t\t// as no more events need to be registered.\n\t\t\tbreak;\n\t\t}\n\n\t\t// If this event is not yet registered, create a new object for it.\n\t\tevents[ name ] = makeEventNode();\n\t\t// Add it to the array with newly created events.\n\t\tnewEventNodes.push( events[ name ] );\n\n\t\t// Add previously processed event name as a child of this event.\n\t\tif ( childEventName ) {\n\t\t\tevents[ name ].childEvents.push( childEventName );\n\t\t}\n\n\t\tchildEventName = name;\n\t\t// If `.lastIndexOf()` returns -1, `.substr()` will return '' which will break the loop.\n\t\tname = name.substr( 0, name.lastIndexOf( ':' ) );\n\t}\n\n\tif ( name !== '' ) {\n\t\t// If name is not empty, we found an already registered event that was a parent of the\n\t\t// event we wanted to register.\n\n\t\t// Copy that event's callbacks to newly registered events.\n\t\tfor ( const node of newEventNodes ) {\n\t\t\tnode.callbacks = events[ name ].callbacks.slice();\n\t\t}\n\n\t\t// Add last newly created event to the already registered event.\n\t\tevents[ name ].childEvents.push( childEventName! );\n\t}\n}\n\n/**\n * Gets an array containing callbacks list for a given event and it's more specific events.\n * I.e. if given event is foo:bar and there is also foo:bar:abc event registered, this will\n * return callback list of foo:bar and foo:bar:abc (but not foo).\n */\nfunction getCallbacksListsForNamespace( source: EmitterInternal, eventName: string ): Array<EventNode[ 'callbacks' ]> {\n\tconst eventNode = getEvents( source )[ eventName ];\n\n\tif ( !eventNode ) {\n\t\treturn [];\n\t}\n\n\tlet callbacksLists = [ eventNode.callbacks ];\n\n\tfor ( let i = 0; i < eventNode.childEvents.length; i++ ) {\n\t\tconst childCallbacksLists = getCallbacksListsForNamespace( source, eventNode.childEvents[ i ] );\n\n\t\tcallbacksLists = callbacksLists.concat( childCallbacksLists );\n\t}\n\n\treturn callbacksLists;\n}\n\n/**\n * Get the list of callbacks for a given event, but only if there any callbacks have been registered.\n * If there are no callbacks registered for given event, it checks if this is a specific event and looks\n * for callbacks for it's more generic version.\n */\nfunction getCallbacksForEvent( source: EmitterInternal, eventName: string ): EventNode[ 'callbacks' ] | null {\n\tlet event;\n\n\tif ( !source._events || !( event = source._events[ eventName ] ) || !event.callbacks.length ) {\n\t\t// There are no callbacks registered for specified eventName.\n\t\t// But this could be a specific-type event that is in a namespace.\n\t\tif ( eventName.indexOf( ':' ) > -1 ) {\n\t\t\t// If the eventName is specific, try to find callback lists for more generic event.\n\t\t\treturn getCallbacksForEvent( source, eventName.substr( 0, eventName.lastIndexOf( ':' ) ) );\n\t\t} else {\n\t\t\t// If this is a top-level generic event, return null;\n\t\t\treturn null;\n\t\t}\n\t}\n\n\treturn event.callbacks;\n}\n\n/**\n * Fires delegated events for given map of destinations.\n *\n * @param destinations A map containing `[ {@link module:utils/emittermixin~Emitter}, \"event name\" ]` pair destinations.\n * @param eventInfo The original event info object.\n * @param fireArgs Arguments the original event was fired with.\n */\nfunction fireDelegatedEvents(\n\tdestinations: Map<Emitter, string | ( ( name: string ) => string ) | undefined>,\n\teventInfo: EventInfo,\n\tfireArgs: Array<any>\n) {\n\tfor ( let [ emitter, name ] of destinations ) {\n\t\tif ( !name ) {\n\t\t\tname = eventInfo.name;\n\t\t} else if ( typeof name == 'function' ) {\n\t\t\tname = name( eventInfo.name );\n\t\t}\n\n\t\tconst delegatedInfo = new EventInfo( eventInfo.source, name );\n\n\t\tdelegatedInfo.path = [ ...eventInfo.path ];\n\n\t\temitter.fire( delegatedInfo, ...fireArgs );\n\t}\n}\n\n/**\n * Helper for registering event callback on the emitter.\n */\nfunction addEventListener<TEvent extends BaseEvent>(\n\tlistener: EmitterInternal,\n\temitter: EmitterInternal,\n\tevent: TEvent[ 'name' ],\n\tcallback: GetCallback<TEvent>,\n\toptions: CallbackOptions\n) {\n\tif ( emitter._addEventListener ) {\n\t\temitter._addEventListener( event, callback, options );\n\t} else {\n\t\t// Allow listening on objects that do not implement Emitter interface.\n\t\t// This is needed in some tests that are using mocks instead of the real objects with EmitterMixin mixed.\n\t\t( listener._addEventListener!<TEvent> ).call( emitter, event, callback, options );\n\t}\n}\n\n/**\n * Helper for removing event callback from the emitter.\n */\nfunction removeEventListener( listener: EmitterInternal, emitter: EmitterInternal, event: string, callback: Function ): void {\n\tif ( emitter._removeEventListener ) {\n\t\temitter._removeEventListener( event, callback );\n\t} else {\n\t\t// Allow listening on objects that do not implement Emitter interface.\n\t\t// This is needed in some tests that are using mocks instead of the real objects with EmitterMixin mixed.\n\t\tlistener._removeEventListener!.call( emitter, event, callback );\n\t}\n}\n\n/**\n * The return value of {@link ~Emitter#delegate}.\n */\nexport interface EmitterMixinDelegateChain {\n\n\t/**\n\t * Selects destination for {@link module:utils/emittermixin~Emitter#delegate} events.\n\t *\n\t * @param emitter An `EmitterMixin` instance which is the destination for delegated events.\n\t * @param nameOrFunction A custom event name or function which converts the original name string.\n\t */\n\tto( emitter: Emitter, nameOrFunction?: string | ( ( name: string ) => string ) ): void;\n}\n","/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n  var type = typeof value;\n  return value != null && (type == 'object' || type == 'function');\n}\n\nexport default isObject;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/unified-signatures */\n\n/**\n * @module utils/observablemixin\n */\n\nimport EmitterMixin, { type Emitter } from './emittermixin';\nimport CKEditorError from './ckeditorerror';\nimport { isObject } from 'lodash-es';\n\nconst observablePropertiesSymbol = Symbol( 'observableProperties' );\nconst boundObservablesSymbol = Symbol( 'boundObservables' );\nconst boundPropertiesSymbol = Symbol( 'boundProperties' );\n\nconst decoratedMethods = Symbol( 'decoratedMethods' );\nconst decoratedOriginal = Symbol( 'decoratedOriginal' );\n\nconst defaultObservableClass = ObservableMixin( EmitterMixin() );\n\n/**\n * A mixin that injects the \"observable properties\" and data binding functionality described in the\n * {@link ~Observable} interface.\n *\n * This function creates a class that inherits from the provided `base` and implements `Observable` interface.\n *\n * ```ts\n * class BaseClass { ... }\n *\n * class MyClass extends ObservableMixin( BaseClass ) {\n * \t// This class derives from `BaseClass` and implements the `Observable` interface.\n * }\n * ```\n *\n * Read more about the concept of observables in the:\n * * {@glink framework/guides/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/guides/architecture/core-editor-architecture Core editor architecture} guide,\n * * {@glink framework/guides/deep-dive/observables Observables deep-dive guide}.\n */\nexport default function ObservableMixin<Base extends abstract new( ...args: Array<any> ) => Emitter>(\n\tbase: Base\n): {\n\tnew ( ...args: ConstructorParameters<Base> ): InstanceType<Base> & Observable;\n\tprototype: InstanceType<Base> & Observable;\n};\n\n/**\n * A mixin that injects the \"observable properties\" and data binding functionality described in the\n * {@link ~Observable} interface.\n *\n * This function creates a class that implements `Observable` interface.\n *\n * ```ts\n * class MyClass extends ObservableMixin() {\n * \t// This class implements the `Observable` interface.\n * }\n * ```\n *\n * Read more about the concept of observables in the:\n * * {@glink framework/guides/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/guides/architecture/core-editor-architecture Core editor architecture} guide,\n * * {@glink framework/guides/deep-dive/observables Observables deep dive} guide.\n */\nexport default function ObservableMixin(): {\n\tnew (): Observable;\n\tprototype: Observable;\n};\n\nexport default function ObservableMixin( base?: abstract new( ...args: Array<any> ) => Emitter ): unknown {\n\tif ( !base ) {\n\t\treturn defaultObservableClass;\n\t}\n\n\tabstract class Mixin extends base implements ObservableInternal {\n\t\tpublic set( name: string | { [ name: string ]: unknown }, value?: unknown ): void {\n\t\t\t// If the first parameter is an Object, iterate over its properties.\n\t\t\tif ( isObject( name ) ) {\n\t\t\t\tObject.keys( name ).forEach( property => {\n\t\t\t\t\tthis.set( property, name[ property ] );\n\t\t\t\t}, this );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tinitObservable( this );\n\n\t\t\tconst properties = this[ observablePropertiesSymbol ];\n\n\t\t\tif ( ( name in this ) && !properties!.has( name ) ) {\n\t\t\t\t/**\n\t\t\t\t * Cannot override an existing property.\n\t\t\t\t *\n\t\t\t\t * This error is thrown when trying to {@link module:utils/observablemixin~Observable#set set} a property with\n\t\t\t\t * a name of an already existing property. For example:\n\t\t\t\t *\n\t\t\t\t * ```ts\n\t\t\t\t * let observable = new Model();\n\t\t\t\t * observable.property = 1;\n\t\t\t\t * observable.set( 'property', 2 );\t\t\t// throws\n\t\t\t\t *\n\t\t\t\t * observable.set( 'property', 1 );\n\t\t\t\t * observable.set( 'property', 2 );\t\t\t// ok, because this is an existing property.\n\t\t\t\t * ```\n\t\t\t\t *\n\t\t\t\t * @error observable-set-cannot-override\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'observable-set-cannot-override', this );\n\t\t\t}\n\n\t\t\tObject.defineProperty( this, name, {\n\t\t\t\tenumerable: true,\n\t\t\t\tconfigurable: true,\n\n\t\t\t\tget() {\n\t\t\t\t\treturn properties!.get( name );\n\t\t\t\t},\n\n\t\t\t\tset( this: Observable, value ) {\n\t\t\t\t\tconst oldValue = properties!.get( name );\n\n\t\t\t\t\t// Fire `set` event before the new value will be set to make it possible\n\t\t\t\t\t// to override observable property without affecting `change` event.\n\t\t\t\t\t// See https://github.com/ckeditor/ckeditor5-utils/issues/171.\n\t\t\t\t\tlet newValue = this.fire<ObservableSetEvent>( `set:${ name }`, name, value, oldValue );\n\n\t\t\t\t\tif ( newValue === undefined ) {\n\t\t\t\t\t\tnewValue = value;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Allow undefined as an initial value like A.define( 'x', undefined ) (#132).\n\t\t\t\t\t// Note: When properties map has no such own property, then its value is undefined.\n\t\t\t\t\tif ( oldValue !== newValue || !properties!.has( name ) ) {\n\t\t\t\t\t\tproperties!.set( name, newValue );\n\t\t\t\t\t\tthis.fire<ObservableChangeEvent>( `change:${ name }`, name, newValue, oldValue );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\t( this as any )[ name ] = value;\n\t\t}\n\n\t\tpublic bind( ...bindProperties: Array<string> ): any {\n\t\t\tif ( !bindProperties.length || !isStringArray( bindProperties ) ) {\n\t\t\t\t/**\n\t\t\t\t * All properties must be strings.\n\t\t\t\t *\n\t\t\t\t * @error observable-bind-wrong-properties\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'observable-bind-wrong-properties', this );\n\t\t\t}\n\n\t\t\tif ( ( new Set( bindProperties ) ).size !== bindProperties.length ) {\n\t\t\t\t/**\n\t\t\t\t * Properties must be unique.\n\t\t\t\t *\n\t\t\t\t * @error observable-bind-duplicate-properties\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'observable-bind-duplicate-properties', this );\n\t\t\t}\n\n\t\t\tinitObservable( this );\n\n\t\t\tconst boundProperties = this[ boundPropertiesSymbol ];\n\n\t\t\tbindProperties.forEach( propertyName => {\n\t\t\t\tif ( boundProperties!.has( propertyName ) ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Cannot bind the same property more than once.\n\t\t\t\t\t *\n\t\t\t\t\t * @error observable-bind-rebind\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'observable-bind-rebind', this );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tconst bindings = new Map<string, Binding>();\n\n\t\t\tbindProperties.forEach( a => {\n\t\t\t\tconst binding = { property: a, to: [] };\n\n\t\t\t\tboundProperties!.set( a, binding );\n\t\t\t\tbindings.set( a, binding );\n\t\t\t} );\n\n\t\t\treturn {\n\t\t\t\tto: bindTo,\n\t\t\t\ttoMany: bindToMany,\n\n\t\t\t\t_observable: this,\n\t\t\t\t_bindProperties: bindProperties,\n\t\t\t\t_to: [],\n\t\t\t\t_bindings: bindings\n\t\t\t};\n\t\t}\n\n\t\tpublic unbind( ...unbindProperties: Array<keyof this & string> ): void {\n\t\t\t// Nothing to do here if not inited yet.\n\t\t\tif ( !( this[ observablePropertiesSymbol ] ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst boundProperties = this[ boundPropertiesSymbol ]!;\n\t\t\tconst boundObservables = this[ boundObservablesSymbol ]!;\n\n\t\t\tif ( unbindProperties.length ) {\n\t\t\t\tif ( !isStringArray( unbindProperties ) ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Properties must be strings.\n\t\t\t\t\t *\n\t\t\t\t\t * @error observable-unbind-wrong-properties\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'observable-unbind-wrong-properties', this );\n\t\t\t\t}\n\n\t\t\t\tunbindProperties.forEach( propertyName => {\n\t\t\t\t\tconst binding = boundProperties.get( propertyName );\n\n\t\t\t\t\t// Nothing to do if the binding is not defined\n\t\t\t\t\tif ( !binding ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\tbinding.to.forEach( ( [ toObservable, toProperty ] ) => {\n\t\t\t\t\t\tconst toProperties = boundObservables.get( toObservable )!;\n\t\t\t\t\t\tconst toPropertyBindings = toProperties[ toProperty ];\n\n\t\t\t\t\t\ttoPropertyBindings.delete( binding );\n\n\t\t\t\t\t\tif ( !toPropertyBindings.size ) {\n\t\t\t\t\t\t\tdelete toProperties[ toProperty ];\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( !Object.keys( toProperties ).length ) {\n\t\t\t\t\t\t\tboundObservables.delete( toObservable );\n\t\t\t\t\t\t\tthis.stopListening( toObservable, 'change' );\n\t\t\t\t\t\t}\n\t\t\t\t\t} );\n\n\t\t\t\t\tboundProperties.delete( propertyName );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tboundObservables.forEach( ( bindings, boundObservable ) => {\n\t\t\t\t\tthis.stopListening( boundObservable, 'change' );\n\t\t\t\t} );\n\n\t\t\t\tboundObservables.clear();\n\t\t\t\tboundProperties.clear();\n\t\t\t}\n\t\t}\n\n\t\tpublic decorate( this: this & { [ x: string ]: any }, methodName: keyof this & string ): void {\n\t\t\tinitObservable( this );\n\n\t\t\tconst originalMethod = this[ methodName ];\n\n\t\t\tif ( !originalMethod ) {\n\t\t\t\t/**\n\t\t\t\t * Cannot decorate an undefined method.\n\t\t\t\t *\n\t\t\t\t * @error observablemixin-cannot-decorate-undefined\n\t\t\t\t * @param {Object} object The object which method should be decorated.\n\t\t\t\t * @param {String} methodName Name of the method which does not exist.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'observablemixin-cannot-decorate-undefined',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ object: this, methodName }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tthis.on( methodName, ( evt, args ) => {\n\t\t\t\tevt.return = originalMethod.apply( this, args );\n\t\t\t} );\n\n\t\t\tthis[ methodName ] = function( ...args: Array<unknown> ) {\n\t\t\t\treturn this.fire( methodName, args );\n\t\t\t};\n\n\t\t\tthis[ methodName ][ decoratedOriginal ] = originalMethod;\n\n\t\t\tif ( !this[ decoratedMethods ] ) {\n\t\t\t\tthis[ decoratedMethods ] = [];\n\t\t\t}\n\n\t\t\tthis[ decoratedMethods ]!.push( methodName );\n\t\t}\n\n\t\t// Override the EmitterMixin stopListening method to be able to clean (and restore) decorated methods.\n\t\t// This is needed in case of:\n\t\t//  1. Have x.foo() decorated.\n\t\t//  2. Call x.stopListening()\n\t\t//  3. Call x.foo(). Problem: nothing happens (the original foo() method is not executed)\n\t\tpublic override stopListening(\n\t\t\tthis: ObservableInternal & { [ x: string ]: any },\n\t\t\temitter?: Emitter,\n\t\t\tevent?: string,\n\t\t\tcallback?: Function\n\t\t): void {\n\t\t\t// Removing all listeners so let's clean the decorated methods to the original state.\n\t\t\tif ( !emitter && this[ decoratedMethods ] ) {\n\t\t\t\tfor ( const methodName of this[ decoratedMethods ]! ) {\n\t\t\t\t\tthis[ methodName ] = this[ methodName ][ decoratedOriginal ];\n\t\t\t\t}\n\n\t\t\t\tdelete this[ decoratedMethods ];\n\t\t\t}\n\n\t\t\tsuper.stopListening( emitter, event, callback );\n\t\t}\n\n\t\tpublic [ observablePropertiesSymbol ]?: Map<string, unknown>;\n\n\t\tpublic [ decoratedMethods ]?: Array<string>;\n\n\t\tpublic [ boundPropertiesSymbol ]?: Map<string, Binding>;\n\n\t\tpublic [ boundObservablesSymbol]?: Map<Observable, Record<string, Set<Binding>>>;\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`\n( [\n\t'set', 'bind', 'unbind', 'decorate',\n\t'on', 'once', 'off', 'listenTo',\n\t'stopListening', 'fire', 'delegate', 'stopDelegating',\n\t'_addEventListener', '_removeEventListener'\n] ).forEach( key => {\n\t( ObservableMixin as any )[ key ] = ( defaultObservableClass.prototype as any )[ key ];\n} );\n\ninterface Binding {\n\n\t/**\n\t * Property which is bound.\n\t */\n\tproperty: string;\n\n\t/**\n\t * Array of observable–property components of the binding (`{ observable: ..., property: .. }`).\n\t */\n\tto: Array<[ Observable, string ]>;\n\n\t/**\n\t * A function which processes `to` components.\n\t */\n\tcallback?: Function;\n}\n\ninterface BindChainInternal {\n\tto: Function;\n\t_observable: Observable;\n\t_bindings: Map<string, Binding>;\n\t_bindProperties: Array<string>;\n\t_to: Array<{\n\t\tobservable: Observable;\n\t\tproperties: Array<string>;\n\t}>;\n}\n\n// Init symbol properties needed for the observable mechanism to work.\nfunction initObservable( observable: ObservableInternal ): void {\n\t// Do nothing if already inited.\n\tif ( observable[ observablePropertiesSymbol ] ) {\n\t\treturn;\n\t}\n\n\t// The internal hash containing the observable's state.\n\tObject.defineProperty( observable, observablePropertiesSymbol, {\n\t\tvalue: new Map()\n\t} );\n\n\t// Map containing bindings to external observables. It shares the binding objects\n\t// (`{ observable: A, property: 'a', to: ... }`) with {@link module:utils/observablemixin~Observable#_boundProperties} and\n\t// it is used to observe external observables to update own properties accordingly.\n\t// See {@link module:utils/observablemixin~Observable#bind}.\n\t//\n\t//\t\tA.bind( 'a', 'b', 'c' ).to( B, 'x', 'y', 'x' );\n\t//\t\tconsole.log( A._boundObservables );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\tB: {\n\t//\t\t\t\t\tx: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\t\t\t{ observable: A, property: 'c', to: [ [ B, 'x' ] ] }\n\t//\t\t\t\t\t] ),\n\t//\t\t\t\t\ty: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\t\t] )\n\t//\t\t\t\t}\n\t//\t\t\t} )\n\t//\n\t//\t\tA.bind( 'd' ).to( B, 'z' ).to( C, 'w' ).as( callback );\n\t//\t\tconsole.log( A._boundObservables );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\tB: {\n\t//\t\t\t\t\tx: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\t\t\t{ observable: A, property: 'c', to: [ [ B, 'x' ] ] }\n\t//\t\t\t\t\t] ),\n\t//\t\t\t\t\ty: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\t\t] ),\n\t//\t\t\t\t\tz: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'd', to: [ [ B, 'z' ], [ C, 'w' ] ], callback: callback }\n\t//\t\t\t\t\t] )\n\t//\t\t\t\t},\n\t//\t\t\t\tC: {\n\t//\t\t\t\t\tw: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'd', to: [ [ B, 'z' ], [ C, 'w' ] ], callback: callback }\n\t//\t\t\t\t\t] )\n\t//\t\t\t\t}\n\t//\t\t\t} )\n\t//\n\tObject.defineProperty( observable, boundObservablesSymbol, {\n\t\tvalue: new Map()\n\t} );\n\n\t// Object that stores which properties of this observable are bound and how. It shares\n\t// the binding objects (`{ observable: A, property: 'a', to: ... }`) with\n\t// {@link module:utils/observablemixin~Observable#_boundObservables}. This data structure is\n\t// a reverse of {@link module:utils/observablemixin~Observable#_boundObservables} and it is helpful for\n\t// {@link module:utils/observablemixin~Observable#unbind}.\n\t//\n\t// See {@link module:utils/observablemixin~Observable#bind}.\n\t//\n\t//\t\tA.bind( 'a', 'b', 'c' ).to( B, 'x', 'y', 'x' );\n\t//\t\tconsole.log( A._boundProperties );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\ta: { observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\tb: { observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\tc: { observable: A, property: 'c', to: [ [ B, 'x' ] ] }\n\t//\t\t\t} )\n\t//\n\t//\t\tA.bind( 'd' ).to( B, 'z' ).to( C, 'w' ).as( callback );\n\t//\t\tconsole.log( A._boundProperties );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\ta: { observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\tb: { observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\tc: { observable: A, property: 'c', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\td: { observable: A, property: 'd', to: [ [ B, 'z' ], [ C, 'w' ] ], callback: callback }\n\t//\t\t\t} )\n\tObject.defineProperty( observable, boundPropertiesSymbol, {\n\t\tvalue: new Map()\n\t} );\n}\n\n/**\n * A chaining for {@link module:utils/observablemixin~Observable#bind} providing `.to()` interface.\n *\n * @param args Arguments of the `.to( args )` binding.\n */\nfunction bindTo( this: BindChainInternal, ...args: Array<Observable | string | Function> ): void {\n\tconst parsedArgs = parseBindToArgs( ...args );\n\tconst bindingsKeys = Array.from( this._bindings.keys() );\n\tconst numberOfBindings = bindingsKeys.length;\n\n\t// Eliminate A.bind( 'x' ).to( B, C )\n\tif ( !parsedArgs.callback && parsedArgs.to.length > 1 ) {\n\t\t/**\n\t\t * Binding multiple observables only possible with callback.\n\t\t *\n\t\t * @error observable-bind-to-no-callback\n\t\t */\n\t\tthrow new CKEditorError( 'observable-bind-to-no-callback', this );\n\t}\n\n\t// Eliminate A.bind( 'x', 'y' ).to( B, callback )\n\tif ( numberOfBindings > 1 && parsedArgs.callback ) {\n\t\t/**\n\t\t * Cannot bind multiple properties and use a callback in one binding.\n\t\t *\n\t\t * @error observable-bind-to-extra-callback\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'observable-bind-to-extra-callback',\n\t\t\tthis\n\t\t);\n\t}\n\n\tparsedArgs.to.forEach( to => {\n\t\t// Eliminate A.bind( 'x', 'y' ).to( B, 'a' )\n\t\tif ( to.properties.length && to.properties.length !== numberOfBindings ) {\n\t\t\t/**\n\t\t\t * The number of properties must match.\n\t\t\t *\n\t\t\t * @error observable-bind-to-properties-length\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'observable-bind-to-properties-length', this );\n\t\t}\n\n\t\t// When no to.properties specified, observing source properties instead i.e.\n\t\t// A.bind( 'x', 'y' ).to( B ) -> Observe B.x and B.y\n\t\tif ( !to.properties.length ) {\n\t\t\tto.properties = this._bindProperties;\n\t\t}\n\t} );\n\n\tthis._to = parsedArgs.to;\n\n\t// Fill {@link BindChain#_bindings} with callback. When the callback is set there's only one binding.\n\tif ( parsedArgs.callback ) {\n\t\tthis._bindings.get( bindingsKeys[ 0 ] )!.callback = parsedArgs.callback;\n\t}\n\n\tattachBindToListeners( this._observable, this._to );\n\n\t// Update observable._boundProperties and observable._boundObservables.\n\tupdateBindToBound( this );\n\n\t// Set initial values of bound properties.\n\tthis._bindProperties.forEach( propertyName => {\n\t\tupdateBoundObservableProperty( this._observable, propertyName );\n\t} );\n}\n\n/**\n * Binds to an attribute in a set of iterable observables.\n */\nfunction bindToMany( this: BindChainInternal, observables: Array<Observable>, attribute: string, callback: Function ): void {\n\tif ( this._bindings.size > 1 ) {\n\t\t/**\n\t\t * Binding one attribute to many observables only possible with one attribute.\n\t\t *\n\t\t * @error observable-bind-to-many-not-one-binding\n\t\t */\n\t\tthrow new CKEditorError( 'observable-bind-to-many-not-one-binding', this );\n\t}\n\n\tthis.to(\n\t\t// Bind to #attribute of each observable...\n\t\t...getBindingTargets( observables, attribute ),\n\t\t// ...using given callback to parse attribute values.\n\t\tcallback\n\t);\n}\n\n/**\n * Returns an array of binding components for\n * {@link Observable#bind} from a set of iterable observables.\n */\nfunction getBindingTargets( observables: Array<Observable>, attribute: string ): Array<Observable | string> {\n\tconst observableAndAttributePairs = observables.map( observable => [ observable, attribute ] );\n\n\t// Merge pairs to one-dimension array of observables and attributes.\n\treturn Array.prototype.concat.apply( [], observableAndAttributePairs );\n}\n\n/**\n * Check if all entries of the array are of `String` type.\n */\nfunction isStringArray( arr: Array<unknown> ): arr is Array<string> {\n\treturn arr.every( a => typeof a == 'string' );\n}\n\n/**\n * Parses and validates {@link Observable#bind}`.to( args )` arguments and returns\n * an object with a parsed structure. For example\n *\n * ```ts\n * A.bind( 'x' ).to( B, 'a', C, 'b', call );\n * ```\n *\n * becomes\n *\n * ```ts\n * {\n * \tto: [\n * \t\t{ observable: B, properties: [ 'a' ] },\n * \t\t{ observable: C, properties: [ 'b' ] },\n * \t],\n * \tcallback: call\n * }\n *\n * @param args Arguments of {@link Observable#bind}`.to( args )`.\n */\nfunction parseBindToArgs( ...args: Array<Observable | string | Function> ) {\n\t// Eliminate A.bind( 'x' ).to()\n\tif ( !args.length ) {\n\t\t/**\n\t\t * Invalid argument syntax in `to()`.\n\t\t *\n\t\t * @error observable-bind-to-parse-error\n\t\t */\n\t\tthrow new CKEditorError( 'observable-bind-to-parse-error', null );\n\t}\n\n\tconst parsed: { to: BindChainInternal[ '_to' ]; callback?: Function } = { to: [] };\n\tlet lastObservable: { observable: Observable; properties: Array<string> };\n\n\tif ( typeof args[ args.length - 1 ] == 'function' ) {\n\t\tparsed.callback = args.pop() as Function;\n\t}\n\n\targs.forEach( a => {\n\t\tif ( typeof a == 'string' ) {\n\t\t\tlastObservable.properties.push( a );\n\t\t} else if ( typeof a == 'object' ) {\n\t\t\tlastObservable = { observable: a, properties: [] };\n\t\t\tparsed.to.push( lastObservable );\n\t\t} else {\n\t\t\tthrow new CKEditorError( 'observable-bind-to-parse-error', null );\n\t\t}\n\t} );\n\n\treturn parsed;\n}\n\n/**\n * Synchronizes {@link module:utils/observable#_boundObservables} with {@link Binding}.\n *\n * @param binding A binding to store in {@link Observable#_boundObservables}.\n * @param toObservable A observable, which is a new component of `binding`.\n * @param toPropertyName A name of `toObservable`'s property, a new component of the `binding`.\n */\nfunction updateBoundObservables(\n\tobservable: ObservableInternal,\n\tbinding: Binding,\n\ttoObservable: Observable,\n\ttoPropertyName: string\n): void {\n\tconst boundObservables = observable[ boundObservablesSymbol ]!;\n\tconst bindingsToObservable = boundObservables.get( toObservable );\n\tconst bindings = bindingsToObservable || {};\n\n\tif ( !bindings[ toPropertyName ] ) {\n\t\tbindings[ toPropertyName ] = new Set();\n\t}\n\n\t// Pass the binding to a corresponding Set in `observable._boundObservables`.\n\tbindings[ toPropertyName ].add( binding );\n\n\tif ( !bindingsToObservable ) {\n\t\tboundObservables.set( toObservable, bindings );\n\t}\n}\n\n/**\n * Synchronizes {@link Observable#_boundProperties} and {@link Observable#_boundObservables}\n * with {@link BindChain}.\n *\n * Assuming the following binding being created\n *\n * ```ts\n * A.bind( 'a', 'b' ).to( B, 'x', 'y' );\n * ```\n *\n * the following bindings were initialized by {@link Observable#bind} in {@link BindChain#_bindings}:\n *\n * ```ts\n * {\n * \ta: { observable: A, property: 'a', to: [] },\n * \tb: { observable: A, property: 'b', to: [] },\n * }\n * ```\n *\n * Iterate over all bindings in this chain and fill their `to` properties with\n * corresponding to( ... ) arguments (components of the binding), so\n *\n * ```ts\n * {\n * \ta: { observable: A, property: 'a', to: [ B, 'x' ] },\n * \tb: { observable: A, property: 'b', to: [ B, 'y' ] },\n * }\n * ```\n *\n * Then update the structure of {@link Observable#_boundObservables} with updated\n * binding, so it becomes:\n *\n * ```ts\n * Map( {\n * \tB: {\n * \t\tx: Set( [\n * \t\t\t{ observable: A, property: 'a', to: [ [ B, 'x' ] ] }\n * \t\t] ),\n * \t\ty: Set( [\n * \t\t\t{ observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n * \t\t] )\n * \t}\n * } )\n * ```\n *\n * @param chain The binding initialized by {@link Observable#bind}.\n */\nfunction updateBindToBound( chain: BindChainInternal ): void {\n\tlet toProperty;\n\n\tchain._bindings.forEach( ( binding, propertyName ) => {\n\t\t// Note: For a binding without a callback, this will run only once\n\t\t// like in A.bind( 'x', 'y' ).to( B, 'a', 'b' )\n\t\t// TODO: ES6 destructuring.\n\t\tchain._to.forEach( to => {\n\t\t\ttoProperty = to.properties[ binding.callback ? 0 : chain._bindProperties.indexOf( propertyName ) ];\n\n\t\t\tbinding.to.push( [ to.observable, toProperty ] );\n\t\t\tupdateBoundObservables( chain._observable, binding, to.observable, toProperty );\n\t\t} );\n\t} );\n}\n\n/**\n * Updates an property of a {@link Observable} with a value\n * determined by an entry in {@link Observable#_boundProperties}.\n *\n * @param observable A observable which property is to be updated.\n * @param propertyName An property to be updated.\n */\nfunction updateBoundObservableProperty( observable: ObservableInternal, propertyName: string ): void {\n\tconst boundProperties = observable[ boundPropertiesSymbol ]!;\n\tconst binding = boundProperties.get( propertyName )!;\n\tlet propertyValue;\n\n\t// When a binding with callback is created like\n\t//\n\t// \t\tA.bind( 'a' ).to( B, 'b', C, 'c', callback );\n\t//\n\t// collect B.b and C.c, then pass them to callback to set A.a.\n\tif ( binding.callback ) {\n\t\tpropertyValue = binding.callback.apply( observable, binding.to.map( to => ( to[ 0 ] as any )[ to[ 1 ] ] ) );\n\t} else {\n\t\tpropertyValue = binding.to[ 0 ];\n\t\tpropertyValue = ( propertyValue[ 0 ] as any )[ propertyValue[ 1 ] ];\n\t}\n\n\tif ( Object.prototype.hasOwnProperty.call( observable, propertyName ) ) {\n\t\t( observable as any )[ propertyName ] = propertyValue;\n\t} else {\n\t\tobservable.set( propertyName as any, propertyValue );\n\t}\n}\n\n/**\n * Starts listening to changes in {@link BindChain._to} observables to update\n * {@link BindChain._observable} {@link BindChain._bindProperties}. Also sets the\n * initial state of {@link BindChain._observable}.\n *\n * @param chain The chain initialized by {@link Observable#bind}.\n */\nfunction attachBindToListeners( observable: ObservableInternal, toBindings: BindChainInternal[ '_to' ] ): void {\n\ttoBindings.forEach( to => {\n\t\tconst boundObservables = observable[ boundObservablesSymbol ]!;\n\t\tlet bindings;\n\n\t\t// If there's already a chain between the observables (`observable` listens to\n\t\t// `to.observable`), there's no need to create another `change` event listener.\n\t\tif ( !boundObservables.get( to.observable ) ) {\n\t\t\tobservable.listenTo<ObservableChangeEvent>( to.observable, 'change', ( evt, propertyName ) => {\n\t\t\t\tbindings = boundObservables.get( to.observable )![ propertyName ];\n\n\t\t\t\t// Note: to.observable will fire for any property change, react\n\t\t\t\t// to changes of properties which are bound only.\n\t\t\t\tif ( bindings ) {\n\t\t\t\t\tbindings.forEach( binding => {\n\t\t\t\t\t\tupdateBoundObservableProperty( observable, binding.property );\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t} );\n}\n\n/**\n * An interface which adds \"observable properties\" and data binding functionality.\n *\n * Can be easily implemented by a class by mixing the {@link module:utils/observablemixin~ObservableMixin} mixin.\n *\n * ```ts\n * class MyClass extends ObservableMixin( OtherBaseClass ) {\n * \t// This class now implements the `Observable` interface.\n * }\n * ```\n *\n * Read more about the usage of this interface in the:\n * * {@glink framework/guides/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/guides/architecture/core-editor-architecture Core editor architecture} guide,\n * * {@glink framework/guides/deep-dive/observables Observables deep-dive guide}.\n */\nexport interface Observable extends Emitter {\n\n\t/**\n\t * Creates and sets the value of an observable property of this object. Such a property becomes a part\n\t * of the state and is observable.\n\t *\n\t * This method throws the `observable-set-cannot-override` error if the observable instance already\n\t * has a property with the given property name. This prevents from mistakenly overriding existing\n\t * properties and methods, but means that `foo.set( 'bar', 1 )` may be slightly slower than `foo.bar = 1`.\n\t *\n\t * In TypeScript, those properties should be declared in class using `declare` keyword. In example:\n\t *\n\t * ```ts\n\t * public declare myProp: number;\n\t *\n\t * constructor() {\n\t * \tthis.set( 'myProp', 2 );\n\t * }\n\t * ```\n\t *\n\t * @param name The property's name.\n\t * @param value The property's value.\n\t */\n\tset<K extends keyof this & string>( name: K, value: this[ K ] ): void;\n\n\t/**\n\t * Creates and sets the value of an observable properties of this object. Such a property becomes a part\n\t * of the state and is observable.\n\t *\n\t * It accepts a single object literal containing key/value pairs with properties to be set.\n\t *\n\t * This method throws the `observable-set-cannot-override` error if the observable instance already\n\t * has a property with the given property name. This prevents from mistakenly overriding existing\n\t * properties and methods, but means that `foo.set( 'bar', 1 )` may be slightly slower than `foo.bar = 1`.\n\t *\n\t * In TypeScript, those properties should be declared in class using `declare` keyword. In example:\n\t *\n\t * ```ts\n\t * public declare myProp1: number;\n\t * public declare myProp2: string;\n\t *\n\t * constructor() {\n\t * \tthis.set( {\n\t * \t\t'myProp1: 2,\n\t * \t\t'myProp2: 'foo'\n\t * \t} );\n\t * }\n\t * ```\n\t *\n\t * @param values An object with `name=>value` pairs.\n\t */\n\tset( values: object & { readonly [ K in keyof this ]?: unknown } ): void;\n\n\t/**\n\t * Binds {@link #set observable properties} to other objects implementing the\n\t * {@link module:utils/observablemixin~Observable} interface.\n\t *\n\t * Read more in the {@glink framework/guides/deep-dive/observables#property-bindings dedicated guide}\n\t * covering the topic of property bindings with some additional examples.\n\t *\n\t * Consider two objects: a `button` and an associated `command` (both `Observable`).\n\t *\n\t * A simple property binding could be as follows:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t * ```\n\t *\n\t * or even shorter:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * ```\n\t *\n\t * which works in the following way:\n\t *\n\t * * `button.isEnabled` **instantly equals** `command.isEnabled`,\n\t * * whenever `command.isEnabled` changes, `button.isEnabled` will immediately reflect its value.\n\t *\n\t * **Note**: To release the binding, use {@link module:utils/observablemixin~Observable#unbind}.\n\t *\n\t * You can also \"rename\" the property in the binding by specifying the new name in the `to()` chain:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isWorking' );\n\t * ```\n\t *\n\t * It is possible to bind more than one property at a time to shorten the code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled', 'value' ).to( command );\n\t * ```\n\t *\n\t * which corresponds to:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * button.bind( 'value' ).to( command );\n\t * ```\n\t *\n\t * The binding can include more than one observable, combining multiple data sources in a custom callback:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible',\n\t * \t( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );\n\t * ```\n\t *\n\t * Using a custom callback allows processing the value before passing it to the target property:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );\n\t * ```\n\t *\n\t * It is also possible to bind to the same property in an array of observables.\n\t * To bind a `button` to multiple commands (also `Observables`) so that each and every one of them\n\t * must be enabled for the button to become enabled, use the following code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled',\n\t * \t( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );\n\t * ```\n\t *\n\t * @param bindProperty Observable property that will be bound to other observable(s).\n\t * @returns The bind chain with the `to()` and `toMany()` methods.\n\t */\n\tbind<K extends keyof this & string>(\n\t\tbindProperty: K\n\t): SingleBindChain<K, this[ K ]>;\n\n\t/**\n\t * Binds {@link #set observable properties} to other objects implementing the\n\t * {@link module:utils/observablemixin~Observable} interface.\n\t *\n\t * Read more in the {@glink framework/guides/deep-dive/observables#property-bindings dedicated guide}\n\t * covering the topic of property bindings with some additional examples.\n\t *\n\t * Consider two objects: a `button` and an associated `command` (both `Observable`).\n\t *\n\t * A simple property binding could be as follows:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t * ```\n\t *\n\t * or even shorter:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * ```\n\t *\n\t * which works in the following way:\n\t *\n\t * * `button.isEnabled` **instantly equals** `command.isEnabled`,\n\t * * whenever `command.isEnabled` changes, `button.isEnabled` will immediately reflect its value.\n\t *\n\t * **Note**: To release the binding, use {@link module:utils/observablemixin~Observable#unbind}.\n\t *\n\t * You can also \"rename\" the property in the binding by specifying the new name in the `to()` chain:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isWorking' );\n\t * ```\n\t *\n\t * It is possible to bind more than one property at a time to shorten the code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled', 'value' ).to( command );\n\t * ```\n\t *\n\t * which corresponds to:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * button.bind( 'value' ).to( command );\n\t * ```\n\t *\n\t * The binding can include more than one observable, combining multiple data sources in a custom callback:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible',\n\t * \t( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );\n\t * ```\n\t *\n\t * Using a custom callback allows processing the value before passing it to the target property:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );\n\t * ```\n\t *\n\t * It is also possible to bind to the same property in an array of observables.\n\t * To bind a `button` to multiple commands (also `Observables`) so that each and every one of them\n\t * must be enabled for the button to become enabled, use the following code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled',\n\t * \t( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );\n\t * ```\n\t *\n\t * @param bindProperty1 Observable property that will be bound to other observable(s).\n\t * @param bindProperty2 Observable property that will be bound to other observable(s).\n\t * @returns The bind chain with the `to()` and `toMany()` methods.\n\t */\n\tbind<K1 extends keyof this & string, K2 extends keyof this & string>(\n\t\tbindProperty1: K1,\n\t\tbindProperty2: K2\n\t): DualBindChain<this[ K1 ], this[ K2 ]>;\n\n\t/**\n\t * Binds {@link #set observable properties} to other objects implementing the\n\t * {@link module:utils/observablemixin~Observable} interface.\n\t *\n\t * Read more in the {@glink framework/guides/deep-dive/observables#property-bindings dedicated guide}\n\t * covering the topic of property bindings with some additional examples.\n\t *\n\t * Consider two objects: a `button` and an associated `command` (both `Observable`).\n\t *\n\t * A simple property binding could be as follows:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t * ```\n\t *\n\t * or even shorter:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * ```\n\t *\n\t * which works in the following way:\n\t *\n\t * * `button.isEnabled` **instantly equals** `command.isEnabled`,\n\t * * whenever `command.isEnabled` changes, `button.isEnabled` will immediately reflect its value.\n\t *\n\t * **Note**: To release the binding, use {@link module:utils/observablemixin~Observable#unbind}.\n\t *\n\t * You can also \"rename\" the property in the binding by specifying the new name in the `to()` chain:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isWorking' );\n\t * ```\n\t *\n\t * It is possible to bind more than one property at a time to shorten the code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled', 'value' ).to( command );\n\t * ```\n\t *\n\t * which corresponds to:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * button.bind( 'value' ).to( command );\n\t * ```\n\t *\n\t * The binding can include more than one observable, combining multiple data sources in a custom callback:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible',\n\t * \t( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );\n\t * ```\n\t *\n\t * Using a custom callback allows processing the value before passing it to the target property:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );\n\t * ```\n\t *\n\t * It is also possible to bind to the same property in an array of observables.\n\t * To bind a `button` to multiple commands (also `Observables`) so that each and every one of them\n\t * must be enabled for the button to become enabled, use the following code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled',\n\t * \t( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );\n\t * ```\n\t *\n\t * @param bindProperties Observable properties that will be bound to other observable(s).\n\t * @returns The bind chain with the `to()` and `toMany()` methods.\n\t */\n\tbind( ...bindProperties: Array<keyof this & string> ): MultiBindChain;\n\n\t/**\n\t * Removes the binding created with {@link #bind}.\n\t *\n\t * ```ts\n\t * // Removes the binding for the 'a' property.\n\t * A.unbind( 'a' );\n\t *\n\t * // Removes bindings for all properties.\n\t * A.unbind();\n\t * ```\n\t *\n\t * @param unbindProperties Observable properties to be unbound. All the bindings will\n\t * be released if no properties are provided.\n\t */\n\tunbind( ...unbindProperties: Array<keyof this & string> ): void;\n\n\t/**\n\t * Turns the given methods of this object into event-based ones. This means that the new method will fire an event\n\t * (named after the method) and the original action will be plugged as a listener to that event.\n\t *\n\t * Read more in the {@glink framework/guides/deep-dive/observables#decorating-object-methods dedicated guide}\n\t * covering the topic of decorating methods with some additional examples.\n\t *\n\t * Decorating the method does not change its behavior (it only adds an event),\n\t * but it allows to modify it later on by listening to the method's event.\n\t *\n\t * For example, to cancel the method execution the event can be {@link module:utils/eventinfo~EventInfo#stop stopped}:\n\t *\n\t * ```ts\n\t * class Foo extends ObservableMixin() {\n\t * \tconstructor() {\n\t * \t\tsuper();\n\t * \t\tthis.decorate( 'method' );\n\t * \t}\n\t *\n\t * \tmethod() {\n\t * \t\tconsole.log( 'called!' );\n\t * \t}\n\t * }\n\t *\n\t * const foo = new Foo();\n\t * foo.on( 'method', ( evt ) => {\n\t * \tevt.stop();\n\t * }, { priority: 'high' } );\n\t *\n\t * foo.method(); // Nothing is logged.\n\t * ```\n\t *\n\t *\n\t * **Note**: The high {@link module:utils/priorities~PriorityString priority} listener\n\t * has been used to execute this particular callback before the one which calls the original method\n\t * (which uses the \"normal\" priority).\n\t *\n\t * It is also possible to change the returned value:\n\t *\n\t * ```ts\n\t * foo.on( 'method', ( evt ) => {\n\t * \tevt.return = 'Foo!';\n\t * } );\n\t *\n\t * foo.method(); // -> 'Foo'\n\t * ```\n\t *\n\t * Finally, it is possible to access and modify the arguments the method is called with:\n\t *\n\t * ```ts\n\t * method( a, b ) {\n\t * \tconsole.log( `${ a }, ${ b }`  );\n\t * }\n\t *\n\t * // ...\n\t *\n\t * foo.on( 'method', ( evt, args ) => {\n\t * \targs[ 0 ] = 3;\n\t *\n\t * \tconsole.log( args[ 1 ] ); // -> 2\n\t * }, { priority: 'high' } );\n\t *\n\t * foo.method( 1, 2 ); // -> '3, 2'\n\t * ```\n\t *\n\t * @param methodName Name of the method to decorate.\n\t */\n\tdecorate( methodName: keyof this & string ): void;\n}\n\ninterface ObservableInternal extends Observable {\n\t[ observablePropertiesSymbol ]?: Map<string, unknown>;\n\n\t[ decoratedMethods ]?: Array<string>;\n\n\t[ boundPropertiesSymbol ]?: Map<string, Binding>;\n\n\t[ boundObservablesSymbol]?: Map<Observable, Record<string, Set<Binding>>>;\n}\n\n/**\n * Fired when a property changed value.\n *\n * ```ts\n * observable.set( 'prop', 1 );\n *\n * observable.on<ObservableChangeEvent<number>>( 'change:prop', ( evt, propertyName, newValue, oldValue ) => {\n * \tconsole.log( `${ propertyName } has changed from ${ oldValue } to ${ newValue }` );\n * } );\n *\n * observable.prop = 2; // -> 'prop has changed from 1 to 2'\n * ```\n *\n * @eventName change:{property}\n * @param {String} name The property name.\n * @param {*} value The new property value.\n * @param {*} oldValue The previous property value.\n */\nexport type ObservableChangeEvent<TValue = any> = {\n\tname: 'change' | `change:${ string }`;\n\targs: [ name: string, value: TValue, oldValue: TValue ];\n};\n\n/**\n * Fired when a property value is going to be set but is not set yet (before the `change` event is fired).\n *\n * You can control the final value of the property by using\n * the {@link module:utils/eventinfo~EventInfo#return event's `return` property}.\n *\n * ```ts\n * observable.set( 'prop', 1 );\n *\n * observable.on<ObservableSetEvent<number>>( 'set:prop', ( evt, propertyName, newValue, oldValue ) => {\n * \tconsole.log( `Value is going to be changed from ${ oldValue } to ${ newValue }` );\n * \tconsole.log( `Current property value is ${ observable[ propertyName ] }` );\n *\n * \t// Let's override the value.\n * \tevt.return = 3;\n * } );\n *\n * observable.on<ObservableChangeEvent<number>>( 'change:prop', ( evt, propertyName, newValue, oldValue ) => {\n * \tconsole.log( `Value has changed from ${ oldValue } to ${ newValue }` );\n * } );\n *\n * observable.prop = 2; // -> 'Value is going to be changed from 1 to 2'\n *                      // -> 'Current property value is 1'\n *                      // -> 'Value has changed from 1 to 3'\n * ```\n *\n * **Note:** The event is fired even when the new value is the same as the old value.\n *\n * @eventName set:{property}\n * @param {String} name The property name.\n * @param {*} value The new property value.\n * @param {*} oldValue The previous property value.\n */\nexport type ObservableSetEvent<TValue = any> = {\n\tname: 'set' | `set:${ string }`;\n\targs: [ name: string, value: TValue, oldValue: TValue ];\n\treturn: TValue;\n};\n\n/**\n * Utility type that creates an event describing type from decorated method.\n *\n * ```ts\n * class Foo extends ObservableMixin() {\n * \tconstructor() {\n * \t\tsuper();\n * \t\tthis.decorate( 'method' );\n * \t}\n *\n * \tmethod( a: number, b: number ): number {\n * \t\treturn a + b;\n * \t}\n * }\n *\n * type FooMethodEvent = DecoratedMethodEvent<Foo, 'method'>;\n *\n * const foo = new Foo();\n *\n * foo.on<FooMethodEvent>( 'method', ( evt, [ a, b ] ) => {\n * \t// `a` and `b` are inferred as numbers.\n * } )\n * ```\n */\nexport type DecoratedMethodEvent<\n\tTObservable extends Observable & { [ N in TName ]: ( ...args: Array<any> ) => any },\n\tTName extends keyof TObservable & string\n> = {\n\tname: TName;\n\targs: [ Parameters<TObservable[ TName ]> ];\n\treturn: ReturnType<TObservable[ TName ]>;\n};\n\ninterface SingleBindChain<TKey extends string, TVal> {\n\ttoMany<O extends Observable, K extends keyof O>(\n\t\tobservables: ReadonlyArray<O>,\n\t\tkey: K,\n\t\tcallback: ( ...values: Array<O[ K ]> ) => TVal\n\t): void;\n\n\tto<O extends Observable & { [ P in TKey ]: TVal }>(\n\t\tobservable: O\n\t): void;\n\tto<O extends Observable & { [ P in TKey ]: any }>(\n\t\tobservable: O,\n\t\tcallback: ( value: O[ TKey ] ) => TVal\n\t): void;\n\tto<O extends Observable & { [ P in K ]: TVal }, K extends keyof O>(\n\t\tobservable: O,\n\t\tkey: K\n\t): void;\n\tto<O extends Observable, K extends keyof O>(\n\t\tobservable: O,\n\t\tkey: K,\n\t\tcallback: ( value: O[ K ] ) => TVal,\n\t): void;\n\tto<\n\t\tO1 extends Observable & { [ P in TKey ]: any },\n\t\tO2 extends Observable & { [ P in TKey ]: any }\n\t>(\n\t\tobservable1: O1,\n\t\tobservable2: O2,\n\t\tcallback: ( value1: O1[ TKey ], value2: O2[ TKey ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable,\n\t\tK1 extends keyof O1,\n\t\tO2 extends Observable,\n\t\tK2 extends keyof O2\n\t>(\n\t\tobservable1: O1,\n\t\tkey1: K1,\n\t\tobservable2: O2,\n\t\tkey2: K2,\n\t\tcallback: ( value1: O1[ K1 ], value2: O2[ K2 ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable & { [ P in TKey ]: any },\n\t\tO2 extends Observable & { [ P in TKey ]: any },\n\t\tO3 extends Observable & { [ P in TKey ]: any }\n\t>(\n\t\tobservable1: O1,\n\t\tobservable2: O2,\n\t\tobservable3: O3,\n\t\tcallback: ( value1: O1[ TKey ], value2: O2[ TKey ], value3: O3[ TKey ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable,\n\t\tK1 extends keyof O1,\n\t\tO2 extends Observable,\n\t\tK2 extends keyof O2,\n\t\tO3 extends Observable,\n\t\tK3 extends keyof O3\n\t>(\n\t\tobservable1: O1,\n\t\tkey1: K1,\n\t\tobservable2: O2,\n\t\tkey2: K2,\n\t\tobservable3: O3,\n\t\tkey3: K3,\n\t\tcallback: ( value1: O1[ K1 ], value2: O2[ K2 ], value3: O3[ K3 ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable & { [ P in TKey ]: any },\n\t\tO2 extends Observable & { [ P in TKey ]: any },\n\t\tO3 extends Observable & { [ P in TKey ]: any },\n\t\tO4 extends Observable & { [ P in TKey ]: any }\n\t>(\n\t\tobservable1: O1,\n\t\tobservable2: O2,\n\t\tobservable3: O3,\n\t\tobservable4: O4,\n\t\tcallback: ( value1: O1[ TKey ], value2: O2[ TKey ], value3: O3[ TKey ], value4: O4[ TKey ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable,\n\t\tK1 extends keyof O1,\n\t\tO2 extends Observable,\n\t\tK2 extends keyof O2,\n\t\tO3 extends Observable,\n\t\tK3 extends keyof O3,\n\t\tO4 extends Observable,\n\t\tK4 extends keyof O4\n\t>(\n\t\tobservable1: O1,\n\t\tkey1: K1,\n\t\tobservable2: O2,\n\t\tkey2: K2,\n\t\tobservable3: O3,\n\t\tkey3: K3,\n\t\tobservable4: O4,\n\t\tkey4: K4,\n\t\tcallback: ( value1: O1[ K1 ], value2: O2[ K2 ], value3: O3[ K3 ], value4: O4[ K4 ] ) => TVal\n\t): void;\n}\n\ninterface DualBindChain<TVal1, TVal2> {\n\tto<\n\t\tO extends Observable & { [ P in K1 ]: TVal1 } & { [ P in K2 ]: TVal2 },\n\t\tK1 extends keyof O,\n\t\tK2 extends keyof O\n\t>(\n\t\tobservable: O,\n\t\tkey1: K1,\n\t\tkey2: K2\n\t): void;\n}\n\ninterface MultiBindChain {\n\tto<O extends Observable>( observable: O, ...properties: Array<keyof O> ): void;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/count\n */\n\n/**\n * Returns the number of items return by the iterator.\n *\n * ```ts\n * count( [ 1, 2, 3, 4, 5 ] ); // 5;\n * ```\n *\n * @param iterable Any iterable.\n * @returns Number of items returned by that iterable.\n */\nexport default function count( iterable: Iterable<unknown> ): number {\n\tlet count = 0;\n\n\tfor ( const _ of iterable ) { // eslint-disable-line no-unused-vars\n\t\tcount++;\n\t}\n\n\treturn count;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/comparearrays\n */\n\n/**\n * Compares how given arrays relate to each other. One array can be: same as another array, prefix of another array\n * or completely different. If arrays are different, first index at which they differ is returned. Otherwise,\n * a flag specifying the relation is returned. Flags are negative numbers, so whenever a number >= 0 is returned\n * it means that arrays differ.\n *\n * ```ts\n * compareArrays( [ 0, 2 ], [ 0, 2 ] );\t\t// 'same'\n * compareArrays( [ 0, 2 ], [ 0, 2, 1 ] );\t\t// 'prefix'\n * compareArrays( [ 0, 2 ], [ 0 ] );\t\t\t// 'extension'\n * compareArrays( [ 0, 2 ], [ 1, 2 ] );\t\t// 0\n * compareArrays( [ 0, 2 ], [ 0, 1 ] );\t\t// 1\n * ```\n *\n * @param a Array that is compared.\n * @param b Array to compare with.\n * @returns How array `a` is related to `b`.\n */\nexport default function compareArrays( a: ReadonlyArray<unknown>, b: ReadonlyArray<unknown> ): ArrayRelation | number {\n\tconst minLen = Math.min( a.length, b.length );\n\n\tfor ( let i = 0; i < minLen; i++ ) {\n\t\tif ( a[ i ] != b[ i ] ) {\n\t\t\t// The arrays are different.\n\t\t\treturn i;\n\t\t}\n\t}\n\n\t// Both arrays were same at all points.\n\tif ( a.length == b.length ) {\n\t\t// If their length is also same, they are the same.\n\t\treturn 'same';\n\t} else if ( a.length < b.length ) {\n\t\t// Compared array is shorter so it is a prefix of the other array.\n\t\treturn 'prefix';\n\t} else {\n\t\t// Compared array is longer so it is an extension of the other array.\n\t\treturn 'extension';\n\t}\n}\n\n/**\n * Array relation.\n */\nexport type ArrayRelation = 'extension' | 'same' | 'prefix';\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/isiterable\n */\n\n/**\n * Checks if value implements iterator interface.\n *\n * @param value The value to check.\n * @returns True if value implements iterator interface.\n */\nexport default function isIterable( value: any ): value is Iterable<any> {\n\treturn !!( value && value[ Symbol.iterator ] );\n}\n","/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\nexport default freeGlobal;\n","import freeGlobal from './_freeGlobal.js';\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nexport default root;\n","import root from './_root.js';\n\n/** Built-in value references. */\nvar Symbol = root.Symbol;\n\nexport default Symbol;\n","import Symbol from './_Symbol.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n  var isOwn = hasOwnProperty.call(value, symToStringTag),\n      tag = value[symToStringTag];\n\n  try {\n    value[symToStringTag] = undefined;\n    var unmasked = true;\n  } catch (e) {}\n\n  var result = nativeObjectToString.call(value);\n  if (unmasked) {\n    if (isOwn) {\n      value[symToStringTag] = tag;\n    } else {\n      delete value[symToStringTag];\n    }\n  }\n  return result;\n}\n\nexport default getRawTag;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n  return nativeObjectToString.call(value);\n}\n\nexport default objectToString;\n","import Symbol from './_Symbol.js';\nimport getRawTag from './_getRawTag.js';\nimport objectToString from './_objectToString.js';\n\n/** `Object#toString` result references. */\nvar nullTag = '[object Null]',\n    undefinedTag = '[object Undefined]';\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n  if (value == null) {\n    return value === undefined ? undefinedTag : nullTag;\n  }\n  return (symToStringTag && symToStringTag in Object(value))\n    ? getRawTag(value)\n    : objectToString(value);\n}\n\nexport default baseGetTag;\n","/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\nexport default isArray;\n","/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n  return value != null && typeof value == 'object';\n}\n\nexport default isObjectLike;\n","import baseGetTag from './_baseGetTag.js';\nimport isArray from './isArray.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar stringTag = '[object String]';\n\n/**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\nfunction isString(value) {\n  return typeof value == 'string' ||\n    (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n}\n\nexport default isString;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/createelement\n */\n\nimport isIterable from '../isiterable';\nimport { isString } from 'lodash-es';\n\n/**\n * Creates element with attributes and children.\n *\n * ```ts\n * createElement( document, 'p' ); // <p>\n * createElement( document, 'p', { class: 'foo' } ); // <p class=\"foo\">\n * createElement( document, 'p', null, 'foo' ); // <p>foo</p>\n * createElement( document, 'p', null, [ 'foo', createElement( document, 'img' ) ] ); // <p>foo<img></p>\n * ```\n *\n * @param doc Document used to create element.\n * @param name Name of the element.\n * @param attributes Object keys will become attributes keys and object values will became attributes values.\n * @param children Child or any iterable of children. Strings will be automatically turned\n * into Text nodes.\n * @returns Created element.\n */\nexport default function createElement(\n\tdoc: Document,\n\tname: string,\n\tattributes: { readonly [ key: string ]: string } = {},\n\tchildren: Node | string | Iterable<Node | string> = []\n): Element {\n\tconst namespace = attributes && attributes.xmlns;\n\tconst element = namespace ? doc.createElementNS( namespace, name ) : doc.createElement( name );\n\n\tfor ( const key in attributes ) {\n\t\telement.setAttribute( key, attributes[ key ] );\n\t}\n\n\tif ( isString( children ) || !isIterable( children ) ) {\n\t\tchildren = [ children ];\n\t}\n\n\tfor ( let child of children ) {\n\t\tif ( isString( child ) ) {\n\t\t\tchild = doc.createTextNode( child );\n\t\t}\n\n\t\telement.appendChild( child );\n\t}\n\n\treturn element;\n}\n","/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n  return function(arg) {\n    return func(transform(arg));\n  };\n}\n\nexport default overArg;\n","import overArg from './_overArg.js';\n\n/** Built-in value references. */\nvar getPrototype = overArg(Object.getPrototypeOf, Object);\n\nexport default getPrototype;\n","import baseGetTag from './_baseGetTag.js';\nimport getPrototype from './_getPrototype.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n    objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to infer the `Object` constructor. */\nvar objectCtorString = funcToString.call(Object);\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n  if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n    return false;\n  }\n  var proto = getPrototype(value);\n  if (proto === null) {\n    return true;\n  }\n  var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n  return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n    funcToString.call(Ctor) == objectCtorString;\n}\n\nexport default isPlainObject;\n","/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n  this.__data__ = [];\n  this.size = 0;\n}\n\nexport default listCacheClear;\n","/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n  return value === other || (value !== value && other !== other);\n}\n\nexport default eq;\n","import eq from './eq.js';\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n  var length = array.length;\n  while (length--) {\n    if (eq(array[length][0], key)) {\n      return length;\n    }\n  }\n  return -1;\n}\n\nexport default assocIndexOf;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype;\n\n/** Built-in value references. */\nvar splice = arrayProto.splice;\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n  var data = this.__data__,\n      index = assocIndexOf(data, key);\n\n  if (index < 0) {\n    return false;\n  }\n  var lastIndex = data.length - 1;\n  if (index == lastIndex) {\n    data.pop();\n  } else {\n    splice.call(data, index, 1);\n  }\n  --this.size;\n  return true;\n}\n\nexport default listCacheDelete;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n  var data = this.__data__,\n      index = assocIndexOf(data, key);\n\n  return index < 0 ? undefined : data[index][1];\n}\n\nexport default listCacheGet;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n  return assocIndexOf(this.__data__, key) > -1;\n}\n\nexport default listCacheHas;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n  var data = this.__data__,\n      index = assocIndexOf(data, key);\n\n  if (index < 0) {\n    ++this.size;\n    data.push([key, value]);\n  } else {\n    data[index][1] = value;\n  }\n  return this;\n}\n\nexport default listCacheSet;\n","import listCacheClear from './_listCacheClear.js';\nimport listCacheDelete from './_listCacheDelete.js';\nimport listCacheGet from './_listCacheGet.js';\nimport listCacheHas from './_listCacheHas.js';\nimport listCacheSet from './_listCacheSet.js';\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n  var index = -1,\n      length = entries == null ? 0 : entries.length;\n\n  this.clear();\n  while (++index < length) {\n    var entry = entries[index];\n    this.set(entry[0], entry[1]);\n  }\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\nexport default ListCache;\n","import ListCache from './_ListCache.js';\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n  this.__data__ = new ListCache;\n  this.size = 0;\n}\n\nexport default stackClear;\n","/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n  var data = this.__data__,\n      result = data['delete'](key);\n\n  this.size = data.size;\n  return result;\n}\n\nexport default stackDelete;\n","/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n  return this.__data__.get(key);\n}\n\nexport default stackGet;\n","/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n  return this.__data__.has(key);\n}\n\nexport default stackHas;\n","import baseGetTag from './_baseGetTag.js';\nimport isObject from './isObject.js';\n\n/** `Object#toString` result references. */\nvar asyncTag = '[object AsyncFunction]',\n    funcTag = '[object Function]',\n    genTag = '[object GeneratorFunction]',\n    proxyTag = '[object Proxy]';\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n  if (!isObject(value)) {\n    return false;\n  }\n  // The use of `Object#toString` avoids issues with the `typeof` operator\n  // in Safari 9 which returns 'object' for typed arrays and other constructors.\n  var tag = baseGetTag(value);\n  return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n}\n\nexport default isFunction;\n","import root from './_root.js';\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\nexport default coreJsData;\n","import coreJsData from './_coreJsData.js';\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n  var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n  return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n  return !!maskSrcKey && (maskSrcKey in func);\n}\n\nexport default isMasked;\n","/** Used for built-in method references. */\nvar funcProto = Function.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n  if (func != null) {\n    try {\n      return funcToString.call(func);\n    } catch (e) {}\n    try {\n      return (func + '');\n    } catch (e) {}\n  }\n  return '';\n}\n\nexport default toSource;\n","import isFunction from './isFunction.js';\nimport isMasked from './_isMasked.js';\nimport isObject from './isObject.js';\nimport toSource from './_toSource.js';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n    objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n  .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n *  else `false`.\n */\nfunction baseIsNative(value) {\n  if (!isObject(value) || isMasked(value)) {\n    return false;\n  }\n  var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n  return pattern.test(toSource(value));\n}\n\nexport default baseIsNative;\n","/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n  return object == null ? undefined : object[key];\n}\n\nexport default getValue;\n","import baseIsNative from './_baseIsNative.js';\nimport getValue from './_getValue.js';\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n  var value = getValue(object, key);\n  return baseIsNative(value) ? value : undefined;\n}\n\nexport default getNative;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar Map = getNative(root, 'Map');\n\nexport default Map;\n","import getNative from './_getNative.js';\n\n/* Built-in method references that are verified to be native. */\nvar nativeCreate = getNative(Object, 'create');\n\nexport default nativeCreate;\n","import nativeCreate from './_nativeCreate.js';\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n  this.__data__ = nativeCreate ? nativeCreate(null) : {};\n  this.size = 0;\n}\n\nexport default hashClear;\n","/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n  var result = this.has(key) && delete this.__data__[key];\n  this.size -= result ? 1 : 0;\n  return result;\n}\n\nexport default hashDelete;\n","import nativeCreate from './_nativeCreate.js';\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n  var data = this.__data__;\n  if (nativeCreate) {\n    var result = data[key];\n    return result === HASH_UNDEFINED ? undefined : result;\n  }\n  return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\nexport default hashGet;\n","import nativeCreate from './_nativeCreate.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n  var data = this.__data__;\n  return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n}\n\nexport default hashHas;\n","import nativeCreate from './_nativeCreate.js';\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n  var data = this.__data__;\n  this.size += this.has(key) ? 0 : 1;\n  data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n  return this;\n}\n\nexport default hashSet;\n","import hashClear from './_hashClear.js';\nimport hashDelete from './_hashDelete.js';\nimport hashGet from './_hashGet.js';\nimport hashHas from './_hashHas.js';\nimport hashSet from './_hashSet.js';\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n  var index = -1,\n      length = entries == null ? 0 : entries.length;\n\n  this.clear();\n  while (++index < length) {\n    var entry = entries[index];\n    this.set(entry[0], entry[1]);\n  }\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\nexport default Hash;\n","import Hash from './_Hash.js';\nimport ListCache from './_ListCache.js';\nimport Map from './_Map.js';\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n  this.size = 0;\n  this.__data__ = {\n    'hash': new Hash,\n    'map': new (Map || ListCache),\n    'string': new Hash\n  };\n}\n\nexport default mapCacheClear;\n","/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n  var type = typeof value;\n  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n    ? (value !== '__proto__')\n    : (value === null);\n}\n\nexport default isKeyable;\n","import isKeyable from './_isKeyable.js';\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n  var data = map.__data__;\n  return isKeyable(key)\n    ? data[typeof key == 'string' ? 'string' : 'hash']\n    : data.map;\n}\n\nexport default getMapData;\n","import getMapData from './_getMapData.js';\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n  var result = getMapData(this, key)['delete'](key);\n  this.size -= result ? 1 : 0;\n  return result;\n}\n\nexport default mapCacheDelete;\n","import getMapData from './_getMapData.js';\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n  return getMapData(this, key).get(key);\n}\n\nexport default mapCacheGet;\n","import getMapData from './_getMapData.js';\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n  return getMapData(this, key).has(key);\n}\n\nexport default mapCacheHas;\n","import getMapData from './_getMapData.js';\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n  var data = getMapData(this, key),\n      size = data.size;\n\n  data.set(key, value);\n  this.size += data.size == size ? 0 : 1;\n  return this;\n}\n\nexport default mapCacheSet;\n","import mapCacheClear from './_mapCacheClear.js';\nimport mapCacheDelete from './_mapCacheDelete.js';\nimport mapCacheGet from './_mapCacheGet.js';\nimport mapCacheHas from './_mapCacheHas.js';\nimport mapCacheSet from './_mapCacheSet.js';\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n  var index = -1,\n      length = entries == null ? 0 : entries.length;\n\n  this.clear();\n  while (++index < length) {\n    var entry = entries[index];\n    this.set(entry[0], entry[1]);\n  }\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\nexport default MapCache;\n","import ListCache from './_ListCache.js';\nimport Map from './_Map.js';\nimport MapCache from './_MapCache.js';\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n  var data = this.__data__;\n  if (data instanceof ListCache) {\n    var pairs = data.__data__;\n    if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n      pairs.push([key, value]);\n      this.size = ++data.size;\n      return this;\n    }\n    data = this.__data__ = new MapCache(pairs);\n  }\n  data.set(key, value);\n  this.size = data.size;\n  return this;\n}\n\nexport default stackSet;\n","import ListCache from './_ListCache.js';\nimport stackClear from './_stackClear.js';\nimport stackDelete from './_stackDelete.js';\nimport stackGet from './_stackGet.js';\nimport stackHas from './_stackHas.js';\nimport stackSet from './_stackSet.js';\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n  var data = this.__data__ = new ListCache(entries);\n  this.size = data.size;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\nexport default Stack;\n","/**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n  var index = -1,\n      length = array == null ? 0 : array.length;\n\n  while (++index < length) {\n    if (iteratee(array[index], index, array) === false) {\n      break;\n    }\n  }\n  return array;\n}\n\nexport default arrayEach;\n","import getNative from './_getNative.js';\n\nvar defineProperty = (function() {\n  try {\n    var func = getNative(Object, 'defineProperty');\n    func({}, '', {});\n    return func;\n  } catch (e) {}\n}());\n\nexport default defineProperty;\n","import defineProperty from './_defineProperty.js';\n\n/**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction baseAssignValue(object, key, value) {\n  if (key == '__proto__' && defineProperty) {\n    defineProperty(object, key, {\n      'configurable': true,\n      'enumerable': true,\n      'value': value,\n      'writable': true\n    });\n  } else {\n    object[key] = value;\n  }\n}\n\nexport default baseAssignValue;\n","import baseAssignValue from './_baseAssignValue.js';\nimport eq from './eq.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n  var objValue = object[key];\n  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n      (value === undefined && !(key in object))) {\n    baseAssignValue(object, key, value);\n  }\n}\n\nexport default assignValue;\n","import assignValue from './_assignValue.js';\nimport baseAssignValue from './_baseAssignValue.js';\n\n/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\nfunction copyObject(source, props, object, customizer) {\n  var isNew = !object;\n  object || (object = {});\n\n  var index = -1,\n      length = props.length;\n\n  while (++index < length) {\n    var key = props[index];\n\n    var newValue = customizer\n      ? customizer(object[key], source[key], key, object, source)\n      : undefined;\n\n    if (newValue === undefined) {\n      newValue = source[key];\n    }\n    if (isNew) {\n      baseAssignValue(object, key, newValue);\n    } else {\n      assignValue(object, key, newValue);\n    }\n  }\n  return object;\n}\n\nexport default copyObject;\n","/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n  var index = -1,\n      result = Array(n);\n\n  while (++index < n) {\n    result[index] = iteratee(index);\n  }\n  return result;\n}\n\nexport default baseTimes;\n","import baseGetTag from './_baseGetTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]';\n\n/**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\nfunction baseIsArguments(value) {\n  return isObjectLike(value) && baseGetTag(value) == argsTag;\n}\n\nexport default baseIsArguments;\n","import baseIsArguments from './_baseIsArguments.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n *  else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nvar isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n  return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n    !propertyIsEnumerable.call(value, 'callee');\n};\n\nexport default isArguments;\n","/**\n * This method returns `false`.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {boolean} Returns `false`.\n * @example\n *\n * _.times(2, _.stubFalse);\n * // => [false, false]\n */\nfunction stubFalse() {\n  return false;\n}\n\nexport default stubFalse;\n","import root from './_root.js';\nimport stubFalse from './stubFalse.js';\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;\n\n/**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\nvar isBuffer = nativeIsBuffer || stubFalse;\n\nexport default isBuffer;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n  var type = typeof value;\n  length = length == null ? MAX_SAFE_INTEGER : length;\n\n  return !!length &&\n    (type == 'number' ||\n      (type != 'symbol' && reIsUint.test(value))) &&\n        (value > -1 && value % 1 == 0 && value < length);\n}\n\nexport default isIndex;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n  return typeof value == 'number' &&\n    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nexport default isLength;\n","import baseGetTag from './_baseGetTag.js';\nimport isLength from './isLength.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n    arrayTag = '[object Array]',\n    boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    errorTag = '[object Error]',\n    funcTag = '[object Function]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    objectTag = '[object Object]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]',\n    float32Tag = '[object Float32Array]',\n    float64Tag = '[object Float64Array]',\n    int8Tag = '[object Int8Array]',\n    int16Tag = '[object Int16Array]',\n    int32Tag = '[object Int32Array]',\n    uint8Tag = '[object Uint8Array]',\n    uint8ClampedTag = '[object Uint8ClampedArray]',\n    uint16Tag = '[object Uint16Array]',\n    uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n  return isObjectLike(value) &&\n    isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n}\n\nexport default baseIsTypedArray;\n","/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n  return function(value) {\n    return func(value);\n  };\n}\n\nexport default baseUnary;\n","import freeGlobal from './_freeGlobal.js';\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n  try {\n    // Use `util.types` for Node.js 10+.\n    var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n    if (types) {\n      return types;\n    }\n\n    // Legacy `process.binding('util')` for Node.js < 10.\n    return freeProcess && freeProcess.binding && freeProcess.binding('util');\n  } catch (e) {}\n}());\n\nexport default nodeUtil;\n","import baseIsTypedArray from './_baseIsTypedArray.js';\nimport baseUnary from './_baseUnary.js';\nimport nodeUtil from './_nodeUtil.js';\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\nexport default isTypedArray;\n","import baseTimes from './_baseTimes.js';\nimport isArguments from './isArguments.js';\nimport isArray from './isArray.js';\nimport isBuffer from './isBuffer.js';\nimport isIndex from './_isIndex.js';\nimport isTypedArray from './isTypedArray.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n  var isArr = isArray(value),\n      isArg = !isArr && isArguments(value),\n      isBuff = !isArr && !isArg && isBuffer(value),\n      isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n      skipIndexes = isArr || isArg || isBuff || isType,\n      result = skipIndexes ? baseTimes(value.length, String) : [],\n      length = result.length;\n\n  for (var key in value) {\n    if ((inherited || hasOwnProperty.call(value, key)) &&\n        !(skipIndexes && (\n           // Safari 9 has enumerable `arguments.length` in strict mode.\n           key == 'length' ||\n           // Node.js 0.10 has enumerable non-index properties on buffers.\n           (isBuff && (key == 'offset' || key == 'parent')) ||\n           // PhantomJS 2 has enumerable non-index properties on typed arrays.\n           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n           // Skip index properties.\n           isIndex(key, length)\n        ))) {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default arrayLikeKeys;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n  var Ctor = value && value.constructor,\n      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n  return value === proto;\n}\n\nexport default isPrototype;\n","import overArg from './_overArg.js';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = overArg(Object.keys, Object);\n\nexport default nativeKeys;\n","import isPrototype from './_isPrototype.js';\nimport nativeKeys from './_nativeKeys.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n  if (!isPrototype(object)) {\n    return nativeKeys(object);\n  }\n  var result = [];\n  for (var key in Object(object)) {\n    if (hasOwnProperty.call(object, key) && key != 'constructor') {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default baseKeys;\n","import isFunction from './isFunction.js';\nimport isLength from './isLength.js';\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n  return value != null && isLength(value.length) && !isFunction(value);\n}\n\nexport default isArrayLike;\n","import arrayLikeKeys from './_arrayLikeKeys.js';\nimport baseKeys from './_baseKeys.js';\nimport isArrayLike from './isArrayLike.js';\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n *   this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\nexport default keys;\n","import copyObject from './_copyObject.js';\nimport keys from './keys.js';\n\n/**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssign(object, source) {\n  return object && copyObject(source, keys(source), object);\n}\n\nexport default baseAssign;\n","/**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction nativeKeysIn(object) {\n  var result = [];\n  if (object != null) {\n    for (var key in Object(object)) {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default nativeKeysIn;\n","import isObject from './isObject.js';\nimport isPrototype from './_isPrototype.js';\nimport nativeKeysIn from './_nativeKeysIn.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeysIn(object) {\n  if (!isObject(object)) {\n    return nativeKeysIn(object);\n  }\n  var isProto = isPrototype(object),\n      result = [];\n\n  for (var key in object) {\n    if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default baseKeysIn;\n","import arrayLikeKeys from './_arrayLikeKeys.js';\nimport baseKeysIn from './_baseKeysIn.js';\nimport isArrayLike from './isArrayLike.js';\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n *   this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n  return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n}\n\nexport default keysIn;\n","import copyObject from './_copyObject.js';\nimport keysIn from './keysIn.js';\n\n/**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssignIn(object, source) {\n  return object && copyObject(source, keysIn(source), object);\n}\n\nexport default baseAssignIn;\n","import root from './_root.js';\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined,\n    allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;\n\n/**\n * Creates a clone of  `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\nfunction cloneBuffer(buffer, isDeep) {\n  if (isDeep) {\n    return buffer.slice();\n  }\n  var length = buffer.length,\n      result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n  buffer.copy(result);\n  return result;\n}\n\nexport default cloneBuffer;\n","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction copyArray(source, array) {\n  var index = -1,\n      length = source.length;\n\n  array || (array = Array(length));\n  while (++index < length) {\n    array[index] = source[index];\n  }\n  return array;\n}\n\nexport default copyArray;\n","/**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\nfunction arrayFilter(array, predicate) {\n  var index = -1,\n      length = array == null ? 0 : array.length,\n      resIndex = 0,\n      result = [];\n\n  while (++index < length) {\n    var value = array[index];\n    if (predicate(value, index, array)) {\n      result[resIndex++] = value;\n    }\n  }\n  return result;\n}\n\nexport default arrayFilter;\n","/**\n * This method returns a new empty array.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {Array} Returns the new empty array.\n * @example\n *\n * var arrays = _.times(2, _.stubArray);\n *\n * console.log(arrays);\n * // => [[], []]\n *\n * console.log(arrays[0] === arrays[1]);\n * // => false\n */\nfunction stubArray() {\n  return [];\n}\n\nexport default stubArray;\n","import arrayFilter from './_arrayFilter.js';\nimport stubArray from './stubArray.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n  if (object == null) {\n    return [];\n  }\n  object = Object(object);\n  return arrayFilter(nativeGetSymbols(object), function(symbol) {\n    return propertyIsEnumerable.call(object, symbol);\n  });\n};\n\nexport default getSymbols;\n","import copyObject from './_copyObject.js';\nimport getSymbols from './_getSymbols.js';\n\n/**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbols(source, object) {\n  return copyObject(source, getSymbols(source), object);\n}\n\nexport default copySymbols;\n","/**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\nfunction arrayPush(array, values) {\n  var index = -1,\n      length = values.length,\n      offset = array.length;\n\n  while (++index < length) {\n    array[offset + index] = values[index];\n  }\n  return array;\n}\n\nexport default arrayPush;\n","import arrayPush from './_arrayPush.js';\nimport getPrototype from './_getPrototype.js';\nimport getSymbols from './_getSymbols.js';\nimport stubArray from './stubArray.js';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n  var result = [];\n  while (object) {\n    arrayPush(result, getSymbols(object));\n    object = getPrototype(object);\n  }\n  return result;\n};\n\nexport default getSymbolsIn;\n","import copyObject from './_copyObject.js';\nimport getSymbolsIn from './_getSymbolsIn.js';\n\n/**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbolsIn(source, object) {\n  return copyObject(source, getSymbolsIn(source), object);\n}\n\nexport default copySymbolsIn;\n","import arrayPush from './_arrayPush.js';\nimport isArray from './isArray.js';\n\n/**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction baseGetAllKeys(object, keysFunc, symbolsFunc) {\n  var result = keysFunc(object);\n  return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n}\n\nexport default baseGetAllKeys;\n","import baseGetAllKeys from './_baseGetAllKeys.js';\nimport getSymbols from './_getSymbols.js';\nimport keys from './keys.js';\n\n/**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeys(object) {\n  return baseGetAllKeys(object, keys, getSymbols);\n}\n\nexport default getAllKeys;\n","import baseGetAllKeys from './_baseGetAllKeys.js';\nimport getSymbolsIn from './_getSymbolsIn.js';\nimport keysIn from './keysIn.js';\n\n/**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeysIn(object) {\n  return baseGetAllKeys(object, keysIn, getSymbolsIn);\n}\n\nexport default getAllKeysIn;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView');\n\nexport default DataView;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar Promise = getNative(root, 'Promise');\n\nexport default Promise;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar Set = getNative(root, 'Set');\n\nexport default Set;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar WeakMap = getNative(root, 'WeakMap');\n\nexport default WeakMap;\n","import DataView from './_DataView.js';\nimport Map from './_Map.js';\nimport Promise from './_Promise.js';\nimport Set from './_Set.js';\nimport WeakMap from './_WeakMap.js';\nimport baseGetTag from './_baseGetTag.js';\nimport toSource from './_toSource.js';\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]',\n    objectTag = '[object Object]',\n    promiseTag = '[object Promise]',\n    setTag = '[object Set]',\n    weakMapTag = '[object WeakMap]';\n\nvar dataViewTag = '[object DataView]';\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n    mapCtorString = toSource(Map),\n    promiseCtorString = toSource(Promise),\n    setCtorString = toSource(Set),\n    weakMapCtorString = toSource(WeakMap);\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n    (Map && getTag(new Map) != mapTag) ||\n    (Promise && getTag(Promise.resolve()) != promiseTag) ||\n    (Set && getTag(new Set) != setTag) ||\n    (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n  getTag = function(value) {\n    var result = baseGetTag(value),\n        Ctor = result == objectTag ? value.constructor : undefined,\n        ctorString = Ctor ? toSource(Ctor) : '';\n\n    if (ctorString) {\n      switch (ctorString) {\n        case dataViewCtorString: return dataViewTag;\n        case mapCtorString: return mapTag;\n        case promiseCtorString: return promiseTag;\n        case setCtorString: return setTag;\n        case weakMapCtorString: return weakMapTag;\n      }\n    }\n    return result;\n  };\n}\n\nexport default getTag;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\nfunction initCloneArray(array) {\n  var length = array.length,\n      result = new array.constructor(length);\n\n  // Add properties assigned by `RegExp#exec`.\n  if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n    result.index = array.index;\n    result.input = array.input;\n  }\n  return result;\n}\n\nexport default initCloneArray;\n","import root from './_root.js';\n\n/** Built-in value references. */\nvar Uint8Array = root.Uint8Array;\n\nexport default Uint8Array;\n","import Uint8Array from './_Uint8Array.js';\n\n/**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\nfunction cloneArrayBuffer(arrayBuffer) {\n  var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n  new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n  return result;\n}\n\nexport default cloneArrayBuffer;\n","import cloneArrayBuffer from './_cloneArrayBuffer.js';\n\n/**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\nfunction cloneDataView(dataView, isDeep) {\n  var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n  return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n}\n\nexport default cloneDataView;\n","/** Used to match `RegExp` flags from their coerced string values. */\nvar reFlags = /\\w*$/;\n\n/**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\nfunction cloneRegExp(regexp) {\n  var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n  result.lastIndex = regexp.lastIndex;\n  return result;\n}\n\nexport default cloneRegExp;\n","import Symbol from './_Symbol.js';\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\nfunction cloneSymbol(symbol) {\n  return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n}\n\nexport default cloneSymbol;\n","import cloneArrayBuffer from './_cloneArrayBuffer.js';\n\n/**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\nfunction cloneTypedArray(typedArray, isDeep) {\n  var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n  return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n}\n\nexport default cloneTypedArray;\n","import cloneArrayBuffer from './_cloneArrayBuffer.js';\nimport cloneDataView from './_cloneDataView.js';\nimport cloneRegExp from './_cloneRegExp.js';\nimport cloneSymbol from './_cloneSymbol.js';\nimport cloneTypedArray from './_cloneTypedArray.js';\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]',\n    float32Tag = '[object Float32Array]',\n    float64Tag = '[object Float64Array]',\n    int8Tag = '[object Int8Array]',\n    int16Tag = '[object Int16Array]',\n    int32Tag = '[object Int32Array]',\n    uint8Tag = '[object Uint8Array]',\n    uint8ClampedTag = '[object Uint8ClampedArray]',\n    uint16Tag = '[object Uint16Array]',\n    uint32Tag = '[object Uint32Array]';\n\n/**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneByTag(object, tag, isDeep) {\n  var Ctor = object.constructor;\n  switch (tag) {\n    case arrayBufferTag:\n      return cloneArrayBuffer(object);\n\n    case boolTag:\n    case dateTag:\n      return new Ctor(+object);\n\n    case dataViewTag:\n      return cloneDataView(object, isDeep);\n\n    case float32Tag: case float64Tag:\n    case int8Tag: case int16Tag: case int32Tag:\n    case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n      return cloneTypedArray(object, isDeep);\n\n    case mapTag:\n      return new Ctor;\n\n    case numberTag:\n    case stringTag:\n      return new Ctor(object);\n\n    case regexpTag:\n      return cloneRegExp(object);\n\n    case setTag:\n      return new Ctor;\n\n    case symbolTag:\n      return cloneSymbol(object);\n  }\n}\n\nexport default initCloneByTag;\n","import isObject from './isObject.js';\n\n/** Built-in value references. */\nvar objectCreate = Object.create;\n\n/**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\nvar baseCreate = (function() {\n  function object() {}\n  return function(proto) {\n    if (!isObject(proto)) {\n      return {};\n    }\n    if (objectCreate) {\n      return objectCreate(proto);\n    }\n    object.prototype = proto;\n    var result = new object;\n    object.prototype = undefined;\n    return result;\n  };\n}());\n\nexport default baseCreate;\n","import baseCreate from './_baseCreate.js';\nimport getPrototype from './_getPrototype.js';\nimport isPrototype from './_isPrototype.js';\n\n/**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneObject(object) {\n  return (typeof object.constructor == 'function' && !isPrototype(object))\n    ? baseCreate(getPrototype(object))\n    : {};\n}\n\nexport default initCloneObject;\n","import getTag from './_getTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]';\n\n/**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\nfunction baseIsMap(value) {\n  return isObjectLike(value) && getTag(value) == mapTag;\n}\n\nexport default baseIsMap;\n","import baseIsMap from './_baseIsMap.js';\nimport baseUnary from './_baseUnary.js';\nimport nodeUtil from './_nodeUtil.js';\n\n/* Node.js helper references. */\nvar nodeIsMap = nodeUtil && nodeUtil.isMap;\n\n/**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\nvar isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\nexport default isMap;\n","import getTag from './_getTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar setTag = '[object Set]';\n\n/**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\nfunction baseIsSet(value) {\n  return isObjectLike(value) && getTag(value) == setTag;\n}\n\nexport default baseIsSet;\n","import baseIsSet from './_baseIsSet.js';\nimport baseUnary from './_baseUnary.js';\nimport nodeUtil from './_nodeUtil.js';\n\n/* Node.js helper references. */\nvar nodeIsSet = nodeUtil && nodeUtil.isSet;\n\n/**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\nvar isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\nexport default isSet;\n","import Stack from './_Stack.js';\nimport arrayEach from './_arrayEach.js';\nimport assignValue from './_assignValue.js';\nimport baseAssign from './_baseAssign.js';\nimport baseAssignIn from './_baseAssignIn.js';\nimport cloneBuffer from './_cloneBuffer.js';\nimport copyArray from './_copyArray.js';\nimport copySymbols from './_copySymbols.js';\nimport copySymbolsIn from './_copySymbolsIn.js';\nimport getAllKeys from './_getAllKeys.js';\nimport getAllKeysIn from './_getAllKeysIn.js';\nimport getTag from './_getTag.js';\nimport initCloneArray from './_initCloneArray.js';\nimport initCloneByTag from './_initCloneByTag.js';\nimport initCloneObject from './_initCloneObject.js';\nimport isArray from './isArray.js';\nimport isBuffer from './isBuffer.js';\nimport isMap from './isMap.js';\nimport isObject from './isObject.js';\nimport isSet from './isSet.js';\nimport keys from './keys.js';\nimport keysIn from './keysIn.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n    CLONE_FLAT_FLAG = 2,\n    CLONE_SYMBOLS_FLAG = 4;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n    arrayTag = '[object Array]',\n    boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    errorTag = '[object Error]',\n    funcTag = '[object Function]',\n    genTag = '[object GeneratorFunction]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    objectTag = '[object Object]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    symbolTag = '[object Symbol]',\n    weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]',\n    float32Tag = '[object Float32Array]',\n    float64Tag = '[object Float64Array]',\n    int8Tag = '[object Int8Array]',\n    int16Tag = '[object Int16Array]',\n    int32Tag = '[object Int32Array]',\n    uint8Tag = '[object Uint8Array]',\n    uint8ClampedTag = '[object Uint8ClampedArray]',\n    uint16Tag = '[object Uint16Array]',\n    uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values supported by `_.clone`. */\nvar cloneableTags = {};\ncloneableTags[argsTag] = cloneableTags[arrayTag] =\ncloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\ncloneableTags[boolTag] = cloneableTags[dateTag] =\ncloneableTags[float32Tag] = cloneableTags[float64Tag] =\ncloneableTags[int8Tag] = cloneableTags[int16Tag] =\ncloneableTags[int32Tag] = cloneableTags[mapTag] =\ncloneableTags[numberTag] = cloneableTags[objectTag] =\ncloneableTags[regexpTag] = cloneableTags[setTag] =\ncloneableTags[stringTag] = cloneableTags[symbolTag] =\ncloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\ncloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\ncloneableTags[errorTag] = cloneableTags[funcTag] =\ncloneableTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n *  1 - Deep clone\n *  2 - Flatten inherited properties\n *  4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\nfunction baseClone(value, bitmask, customizer, key, object, stack) {\n  var result,\n      isDeep = bitmask & CLONE_DEEP_FLAG,\n      isFlat = bitmask & CLONE_FLAT_FLAG,\n      isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n  if (customizer) {\n    result = object ? customizer(value, key, object, stack) : customizer(value);\n  }\n  if (result !== undefined) {\n    return result;\n  }\n  if (!isObject(value)) {\n    return value;\n  }\n  var isArr = isArray(value);\n  if (isArr) {\n    result = initCloneArray(value);\n    if (!isDeep) {\n      return copyArray(value, result);\n    }\n  } else {\n    var tag = getTag(value),\n        isFunc = tag == funcTag || tag == genTag;\n\n    if (isBuffer(value)) {\n      return cloneBuffer(value, isDeep);\n    }\n    if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n      result = (isFlat || isFunc) ? {} : initCloneObject(value);\n      if (!isDeep) {\n        return isFlat\n          ? copySymbolsIn(value, baseAssignIn(result, value))\n          : copySymbols(value, baseAssign(result, value));\n      }\n    } else {\n      if (!cloneableTags[tag]) {\n        return object ? value : {};\n      }\n      result = initCloneByTag(value, tag, isDeep);\n    }\n  }\n  // Check for circular references and return its corresponding clone.\n  stack || (stack = new Stack);\n  var stacked = stack.get(value);\n  if (stacked) {\n    return stacked;\n  }\n  stack.set(value, result);\n\n  if (isSet(value)) {\n    value.forEach(function(subValue) {\n      result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n    });\n  } else if (isMap(value)) {\n    value.forEach(function(subValue, key) {\n      result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n    });\n  }\n\n  var keysFunc = isFull\n    ? (isFlat ? getAllKeysIn : getAllKeys)\n    : (isFlat ? keysIn : keys);\n\n  var props = isArr ? undefined : keysFunc(value);\n  arrayEach(props || value, function(subValue, key) {\n    if (props) {\n      key = subValue;\n      subValue = value[key];\n    }\n    // Recursively populate clone (susceptible to call stack limits).\n    assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n  });\n  return result;\n}\n\nexport default baseClone;\n","import baseClone from './_baseClone.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n    CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n *   if (_.isElement(value)) {\n *     return value.cloneNode(true);\n *   }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\nfunction cloneDeepWith(value, customizer) {\n  customizer = typeof customizer == 'function' ? customizer : undefined;\n  return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n}\n\nexport default cloneDeepWith;\n","import isObjectLike from './isObjectLike.js';\nimport isPlainObject from './isPlainObject.js';\n\n/**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('<body>');\n * // => false\n */\nfunction isElement(value) {\n  return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n}\n\nexport default isElement;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/config\n */\n\nimport { isPlainObject, isElement, cloneDeepWith } from 'lodash-es';\n\n/**\n * Handles a configuration dictionary.\n *\n * @typeParam Cfg A type of the configuration dictionary.\n */\nexport default class Config<Cfg> {\n\t/**\n\t * Store for the whole configuration.\n\t */\n\tprivate readonly _config: Record<string, any>;\n\n\t/**\n\t * Creates an instance of the {@link ~Config} class.\n\t *\n\t * @param configurations The initial configurations to be set. Usually, provided by the user.\n\t * @param defaultConfigurations The default configurations. Usually, provided by the system.\n\t */\n\tconstructor( configurations?: Partial<Cfg>, defaultConfigurations?: Partial<Cfg> ) {\n\t\tthis._config = {};\n\n\t\t// Set default configuration.\n\t\tif ( defaultConfigurations ) {\n\t\t\t// Clone the configuration to make sure that the properties will not be shared\n\t\t\t// between editors and make the watchdog feature work correctly.\n\t\t\tthis.define( cloneConfig( defaultConfigurations ) );\n\t\t}\n\n\t\t// Set initial configuration.\n\t\tif ( configurations ) {\n\t\t\tthis._setObjectToTarget( this._config, configurations );\n\t\t}\n\t}\n\n\t/**\n\t * Set configuration values.\n\t *\n\t * It also accepts setting a \"deep configuration\" by using dots in the name. For example, `'resize.width'` sets\n\t * the value for the `width` configuration in the `resize` subset.\n\t *\n\t * ```ts\n\t * config.set( 'resize.width', 500 );\n\t * ```\n\t *\n\t * It accepts both a name/value pair or an object, which properties and values will be used to set\n\t * configurations. See {@link #set:CONFIG_OBJECT}.\n\t *\n\t * @label KEY_VALUE\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @param value The configuration value.\n\t */\n\tpublic set<K extends string>( name: K, value: GetSubConfig<Cfg, K> ): void;\n\n\t/**\n\t * Set configuration values.\n\t *\n\t * It accepts an object, which properties and values will be used to set configurations.\n\t *\n\t * ```ts\n\t * config.set( {\n\t * \twidth: 500\n\t * \ttoolbar: {\n\t * \t\tcollapsed: true\n\t * \t}\n\t * } );\n\t *\n\t * // Equivalent to:\n\t * config.set( 'width', 500 );\n\t * config.set( 'toolbar.collapsed', true );\n\t * ```\n\t *\n\t * Passing an object as the value will amend the configuration, not replace it.\n\t *\n\t * ```ts\n\t * config.set( 'toolbar', {\n\t * \tcollapsed: true,\n\t * } );\n\t *\n\t * config.set( 'toolbar', {\n\t * \tcolor: 'red',\n\t * } );\n\t *\n\t * config.get( 'toolbar.collapsed' ); // true\n\t * config.get( 'toolbar.color' ); // 'red'\n\t * ```\n\t *\n\t * It accepts both a name/value pair or an object, which properties and values will be used to set\n\t * configurations. See {@link #set:KEY_VALUE}.\n\t *\n\t * @label CONFIG_OBJECT\n\t * @param config The configuration object from which take properties as\n\t * configuration entries. Configuration names are case-sensitive.\n\t */\n\tpublic set( config: Partial<Cfg> ): void;\n\n\tpublic set( name: string | Record<string, any>, value?: any ): void {\n\t\tthis._setToTarget( this._config, name, value );\n\t}\n\n\t/**\n\t * Does exactly the same as {@link #set:KEY_VALUE} with one exception – passed configuration extends\n\t * existing one, but does not overwrite already defined values.\n\t *\n\t * This method is supposed to be called by plugin developers to setup plugin's configurations. It would be\n\t * rarely used for other needs.\n\t *\n\t * @label KEY_VALUE\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @param value The configuration value.\n\t */\n\tpublic define<K extends string>( name: K, value: GetSubConfig<Cfg, K> ): void;\n\n\t/**\n\t * Does exactly the same as {@link #set:CONFIG_OBJECT} with one exception – passed configuration extends\n\t * existing one, but does not overwrite already defined values.\n\t *\n\t * This method is supposed to be called by plugin developers to setup plugin's configurations. It would be\n\t * rarely used for other needs.\n\t *\n\t * @label CONFIG_OBJECT\n\t * @param config The configuration object from which take properties as\n\t * configuration entries. Configuration names are case-sensitive.\n\t */\n\tpublic define( config: Partial<Cfg> ): void;\n\n\tpublic define( name: string | Record<string, any>, value?: any ): void {\n\t\tconst isDefine = true;\n\n\t\tthis._setToTarget( this._config, name, value, isDefine );\n\t}\n\n\t/**\n\t * Gets the value for a configuration entry.\n\t *\n\t * ```ts\n\t * config.get( 'name' );\n\t * ```\n\t *\n\t * Deep configurations can be retrieved by separating each part with a dot.\n\t *\n\t * ```ts\n\t * config.get( 'toolbar.collapsed' );\n\t * ```\n\t *\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @returns The configuration value or `undefined` if the configuration entry was not found.\n\t */\n\tpublic get<K extends string>( name: K ): GetSubConfig<Cfg, K> | undefined {\n\t\treturn this._getFromSource( this._config, name );\n\t}\n\n\t/**\n\t * Iterates over all top level configuration names.\n\t */\n\tpublic* names(): Iterable<string> {\n\t\tfor ( const name of Object.keys( this._config ) ) {\n\t\t\tyield name;\n\t\t}\n\t}\n\n\t/**\n\t * Saves passed configuration to the specified target (nested object).\n\t *\n\t * @param target Nested config object.\n\t * @param name The configuration name or an object from which take properties as\n\t * configuration entries. Configuration names are case-sensitive.\n\t * @param value The configuration value. Used if a name is passed.\n\t * @param isDefine Define if passed configuration should overwrite existing one.\n\t */\n\tprivate _setToTarget( target: any, name: any, value: any, isDefine: boolean = false ): void {\n\t\t// In case of an object, iterate through it and call `_setToTarget` again for each property.\n\t\tif ( isPlainObject( name ) ) {\n\t\t\tthis._setObjectToTarget( target, name, isDefine );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// The configuration name should be split into parts if it has dots. E.g. `resize.width` -> [`resize`, `width`].\n\t\tconst parts = name.split( '.' );\n\n\t\t// Take the name of the configuration out of the parts. E.g. `resize.width` -> `width`.\n\t\tname = parts.pop();\n\n\t\t// Iterate over parts to check if currently stored configuration has proper structure.\n\t\tfor ( const part of parts ) {\n\t\t\t// If there is no object for specified part then create one.\n\t\t\tif ( !isPlainObject( target[ part ] ) ) {\n\t\t\t\ttarget[ part ] = {};\n\t\t\t}\n\n\t\t\t// Nested object becomes a target.\n\t\t\ttarget = target[ part ];\n\t\t}\n\n\t\t// In case of value is an object.\n\t\tif ( isPlainObject( value ) ) {\n\t\t\t// We take care of proper config structure.\n\t\t\tif ( !isPlainObject( target[ name ] ) ) {\n\t\t\t\ttarget[ name ] = {};\n\t\t\t}\n\n\t\t\ttarget = target[ name ];\n\n\t\t\t// And iterate through this object calling `_setToTarget` again for each property.\n\t\t\tthis._setObjectToTarget( target, value, isDefine );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Do nothing if we are defining configuration for non empty name.\n\t\tif ( isDefine && typeof target[ name ] != 'undefined' ) {\n\t\t\treturn;\n\t\t}\n\n\t\ttarget[ name ] = value;\n\t}\n\n\t/**\n\t * Get specified configuration from specified source (nested object).\n\t *\n\t * @param source level of nested object.\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @returns The configuration value or `undefined` if the configuration entry was not found.\n\t */\n\tprivate _getFromSource( source: any, name: string ): any {\n\t\t// The configuration name should be split into parts if it has dots. E.g. `resize.width` -> [`resize`, `width`].\n\t\tconst parts = name.split( '.' );\n\n\t\t// Take the name of the configuration out of the parts. E.g. `resize.width` -> `width`.\n\t\tname = parts.pop()!;\n\n\t\t// Iterate over parts to check if currently stored configuration has proper structure.\n\t\tfor ( const part of parts ) {\n\t\t\tif ( !isPlainObject( source[ part ] ) ) {\n\t\t\t\tsource = null;\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Nested object becomes a source.\n\t\t\tsource = source[ part ];\n\t\t}\n\n\t\t// Always returns undefined for non existing configuration.\n\t\treturn source ? cloneConfig( source[ name ] ) : undefined;\n\t}\n\n\t/**\n\t * Iterates through passed object and calls {@link #_setToTarget} method with object key and value for each property.\n\t *\n\t * @param target Nested config object.\n\t * @param configuration Configuration data set\n\t * @param isDefine Defines if passed configuration is default configuration or not.\n\t */\n\tprivate _setObjectToTarget( target: any, configuration: any, isDefine?: boolean ): void {\n\t\tObject.keys( configuration ).forEach( key => {\n\t\t\tthis._setToTarget( target, key, configuration[ key ], isDefine );\n\t\t} );\n\t}\n}\n\n/**\n * Clones configuration object or value.\n */\nfunction cloneConfig<T>( source: T ): T {\n\treturn cloneDeepWith( source, leaveDOMReferences );\n}\n\n/**\n * A customized function for cloneDeepWith.\n * It will leave references to DOM Elements instead of cloning them.\n */\nfunction leaveDOMReferences( value: unknown ): unknown {\n\treturn isElement( value ) ? value : undefined;\n}\n\n/**\n * An utility type excluding primitive values and arrays from the union.\n */\nexport type OnlyObject<T> = Exclude<T, undefined | null | string | number | boolean | Array<any>>;\n\n/**\n * An utility type extracting configuration value from the given name.\n *\n * @typeParam T The type of a configuration dictionary.\n * @typeParam K The literal type of configuration name (dot-separated path).\n */\nexport type GetSubConfig<T, K> = K extends keyof T ?\n\tT[ K ] :\n\tK extends `${ infer K1 }.${ infer K2 }` ?\n\t\tK1 extends keyof T ?\n\t\t\tGetSubConfig<OnlyObject<T[ K1 ]>, K2> :\n\t\t\tunknown :\n\t\tunknown;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/isnode\n */\n\n/**\n * Checks if the object is a native DOM Node.\n */\nexport default function isNode( obj: any ): obj is Node {\n\tif ( obj ) {\n\t\tif ( obj.defaultView ) {\n\t\t\treturn obj instanceof obj.defaultView.Document;\n\t\t} else if ( obj.ownerDocument && obj.ownerDocument.defaultView ) {\n\t\t\treturn obj instanceof obj.ownerDocument.defaultView.Node;\n\t\t}\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/iswindow\n */\n\n/**\n * Checks if the object is a native DOM Window.\n */\nexport default function isWindow( obj: unknown ): obj is Window {\n\tconst stringifiedObject = Object.prototype.toString.apply( obj );\n\n\t// Returns `true` for the `window` object in browser environments.\n\tif ( stringifiedObject == '[object Window]' ) {\n\t\treturn true;\n\t}\n\n\t// Returns `true` for the `window` object in the Electron environment.\n\tif ( stringifiedObject == '[object global]' ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/emittermixin\n */\n\nimport EmitterMixin, {\n\t_getEmitterListenedTo,\n\t_setEmitterId,\n\ttype Emitter,\n\ttype CallbackOptions,\n\ttype BaseEvent,\n\ttype GetCallback\n} from '../emittermixin';\nimport uid from '../uid';\nimport isNode from './isnode';\nimport isWindow from './iswindow';\nimport type EventInfo from '../eventinfo';\n\nconst defaultEmitterClass = DomEmitterMixin( EmitterMixin() );\n\n/**\n * Mixin that injects the DOM events API into its host. It provides the API\n * compatible with {@link module:utils/emittermixin~EmitterMixin}.\n *\n * This function creates a class that inherits from the provided `base` and implements `Emitter` interface.\n *\n * DOM emitter mixin is by default available in the {@link module:ui/view~View} class,\n * but it can also be mixed into any other class:\n *\n * ```ts\n * import DomEmitterMixin from '../utils/dom/emittermixin.js';\n *\n * class BaseClass { ... }\n *\n * class SomeView extends DomEmitterMixin( BaseClass ) {}\n *\n * const view = new SomeView();\n * view.listenTo( domElement, ( evt, domEvt ) => {\n * \tconsole.log( evt, domEvt );\n * } );\n * ```\n */\nexport default function DomEmitterMixin<Base extends abstract new ( ...args: Array<any> ) => Emitter>(\n\tbase: Base\n): {\n\tnew ( ...args: ConstructorParameters<Base> ): InstanceType<Base> & DomEmitter;\n\tprototype: InstanceType<Base> & DomEmitter;\n};\n\n/**\n * Mixin that injects the DOM events API into its host. It provides the API\n * compatible with {@link module:utils/emittermixin~EmitterMixin}.\n *\n * This function creates a class that implements `Emitter` interface.\n *\n * DOM emitter mixin is by default available in the {@link module:ui/view~View} class,\n * but it can also be mixed into any other class:\n *\n * ```ts\n * import DomEmitterMixin from '../utils/dom/emittermixin.js';\n *\n * class SomeView extends DomEmitterMixin() {}\n *\n * const view = new SomeView();\n * view.listenTo( domElement, ( evt, domEvt ) => {\n * \tconsole.log( evt, domEvt );\n * } );\n * ```\n */\nexport default function DomEmitterMixin(): {\n\tnew (): DomEmitter;\n\tprototype: DomEmitter;\n};\n\nexport default function DomEmitterMixin( base?: abstract new ( ...args: Array<any> ) => Emitter ): unknown {\n\tif ( !base ) {\n\t\treturn defaultEmitterClass;\n\t}\n\n\tabstract class Mixin extends base implements DomEmitter {\n\t\tpublic override listenTo<K extends keyof HTMLElementEventMap>(\n\t\t\temitter: Node | Window,\n\t\t\tevent: K,\n\t\t\tcallback: ( this: this, ev: EventInfo, event: HTMLElementEventMap[ K ] ) => void,\n\t\t\toptions?: CallbackOptions & { readonly useCapture?: boolean; readonly usePassive?: boolean }\n\t\t): void;\n\t\tpublic override listenTo<TEvent extends BaseEvent>(\n\t\t\temitter: Emitter,\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions?: CallbackOptions\n\t\t): void;\n\t\tpublic override listenTo(\n\t\t\temitter: Emitter | Node | Window,\n\t\t\tevent: string,\n\t\t\tcallback: ( ev: EventInfo, ...args: Array<any> ) => void,\n\t\t\toptions: CallbackOptions & { readonly useCapture?: boolean; readonly usePassive?: boolean } = {}\n\t\t): void {\n\t\t\t// Check if emitter is an instance of DOM Node. If so, use corresponding ProxyEmitter (or create one if not existing).\n\t\t\tif ( isNode( emitter ) || isWindow( emitter ) ) {\n\t\t\t\tconst proxyOptions = {\n\t\t\t\t\tcapture: !!options.useCapture,\n\t\t\t\t\tpassive: !!options.usePassive\n\t\t\t\t};\n\n\t\t\t\tconst proxyEmitter = this._getProxyEmitter( emitter, proxyOptions ) || new ProxyEmitter( emitter, proxyOptions );\n\n\t\t\t\tthis.listenTo( proxyEmitter, event, callback, options );\n\t\t\t} else {\n\t\t\t\t// Execute parent class method with Emitter (or ProxyEmitter) instance.\n\t\t\t\tsuper.listenTo( emitter, event, callback, options );\n\t\t\t}\n\t\t}\n\n\t\tpublic override stopListening(\n\t\t\temitter?: Emitter | Node | Window,\n\t\t\tevent?: string,\n\t\t\tcallback?: Function\n\t\t): void {\n\t\t\t// Check if the emitter is an instance of DOM Node. If so, forward the call to the corresponding ProxyEmitters.\n\t\t\tif ( isNode( emitter ) || isWindow( emitter ) ) {\n\t\t\t\tconst proxyEmitters = this._getAllProxyEmitters( emitter );\n\n\t\t\t\tfor ( const proxy of proxyEmitters ) {\n\t\t\t\t\tthis.stopListening( proxy, event, callback );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\t// Execute parent class method with Emitter (or ProxyEmitter) instance.\n\t\t\t\tsuper.stopListening( emitter, event, callback );\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * Retrieves ProxyEmitter instance for given DOM Node residing in this Host and given options.\n\t\t *\n\t\t * @param node DOM Node of the ProxyEmitter.\n\t\t * @param options Additional options.\n\t\t * @param options.useCapture Indicates that events of this type will be dispatched to the registered\n\t\t * listener before being dispatched to any EventTarget beneath it in the DOM tree.\n\t\t * @param options.usePassive Indicates that the function specified by listener will never call preventDefault()\n\t\t * and prevents blocking browser's main thread by this event handler.\n\t\t * @returns ProxyEmitter instance bound to the DOM Node.\n\t\t */\n\t\tprivate _getProxyEmitter(\n\t\t\tnode: Node | Window,\n\t\t\toptions: { capture: boolean; passive: boolean }\n\t\t): Emitter | null {\n\t\t\treturn _getEmitterListenedTo( this, getProxyEmitterId( node, options ) );\n\t\t}\n\n\t\t/**\n\t\t * Retrieves all the ProxyEmitter instances for given DOM Node residing in this Host.\n\t\t *\n\t\t * @param node DOM Node of the ProxyEmitter.\n\t\t */\n\t\tprivate _getAllProxyEmitters( node: Node | Window ): Array<ProxyEmitter> {\n\t\t\treturn [\n\t\t\t\t{ capture: false, passive: false },\n\t\t\t\t{ capture: false, passive: true },\n\t\t\t\t{ capture: true, passive: false },\n\t\t\t\t{ capture: true, passive: true }\n\t\t\t].map( options => this._getProxyEmitter( node, options ) ).filter( proxy => !!proxy ) as any;\n\t\t}\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`\n( [\n\t'_getProxyEmitter', '_getAllProxyEmitters',\n\t'on', 'once', 'off', 'listenTo',\n\t'stopListening', 'fire', 'delegate', 'stopDelegating',\n\t'_addEventListener', '_removeEventListener'\n] ).forEach( key => {\n\t( DomEmitterMixin as any )[ key ] = ( defaultEmitterClass.prototype as any )[ key ];\n} );\n\n/**\n * Creates a ProxyEmitter instance. Such an instance is a bridge between a DOM Node firing events\n * and any Host listening to them. It is backwards compatible with {@link module:utils/emittermixin~Emitter#on}.\n * There is a separate instance for each combination of modes (useCapture & usePassive). The mode is concatenated with\n * UID stored in HTMLElement to give each instance unique identifier.\n *\n *                                  listenTo( click, ... )\n *                    +-----------------------------------------+\n *                    |              stopListening( ... )       |\n *     +----------------------------+                           |             addEventListener( click, ... )\n *     | Host                       |                           |   +---------------------------------------------+\n *     +----------------------------+                           |   |       removeEventListener( click, ... )     |\n *     | _listeningTo: {            |                +----------v-------------+                                   |\n *     |   UID+mode: {              |                | ProxyEmitter           |                                   |\n *     |     emitter: ProxyEmitter, |                +------------------------+                      +------------v----------+\n *     |     callbacks: {           |                | events: {              |                      | Node (HTMLElement)    |\n *     |       click: [ callbacks ] |                |   click: [ callbacks ] |                      +-----------------------+\n *     |     }                      |                | },                     |                      | data-ck-expando: UID  |\n *     |   }                        |                | _domNode: Node,        |                      +-----------------------+\n *     | }                          |                | _domListeners: {},     |                                   |\n *     | +------------------------+ |                | _emitterId: UID+mode   |                                   |\n *     | | DomEmitterMixin        | |                +--------------^---------+                                   |\n *     | +------------------------+ |                           |   |                                             |\n *     +--------------^-------------+                           |   +---------------------------------------------+\n *                    |                                         |                  click (DOM Event)\n *                    +-----------------------------------------+\n *                                fire( click, DOM Event )\n */\nclass ProxyEmitter extends EmitterMixin() {\n\tprivate readonly _domNode: Node | Window;\n\tprivate readonly _options: { capture: boolean; passive: boolean };\n\n\t/**\n\t * @param node DOM Node that fires events.\n\t * @param options Additional options.\n\t * @param options.useCapture Indicates that events of this type will be dispatched to the registered\n\t * listener before being dispatched to any EventTarget beneath it in the DOM tree.\n\t * @param options.usePassive Indicates that the function specified by listener will never call preventDefault()\n\t * and prevents blocking browser's main thread by this event handler.\n\t */\n\tconstructor(\n\t\tnode: Node | Window,\n\t\toptions: { capture: boolean; passive: boolean }\n\t) {\n\t\tsuper();\n\n\t\t// Set emitter ID to match DOM Node \"expando\" property.\n\t\t_setEmitterId( this, getProxyEmitterId( node, options ) );\n\n\t\t// Remember the DOM Node this ProxyEmitter is bound to.\n\t\tthis._domNode = node;\n\n\t\t// And given options.\n\t\tthis._options = options;\n\t}\n\n\t/**\n\t * Collection of native DOM listeners.\n\t */\n\tprivate _domListeners?: {\n\t\t[ event: string ]: {\n\t\t\t( domEvent: unknown ): void;\n\t\t\tremoveListener(): void;\n\t\t};\n\t};\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired.\n\t *\n\t * It attaches a native DOM listener to the DOM Node. When fired,\n\t * a corresponding Emitter event will also fire with DOM Event object as an argument.\n\t *\n\t * **Note**: This is automatically called by the\n\t * {@link module:utils/emittermixin~Emitter#listenTo `Emitter#listenTo()`}.\n\t *\n\t * @param event The name of the event.\n\t */\n\tpublic attach( event: string ): void {\n\t\t// If the DOM Listener for given event already exist it is pointless\n\t\t// to attach another one.\n\t\tif ( this._domListeners && this._domListeners[ event ] ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst domListener = this._createDomListener( event );\n\n\t\t// Attach the native DOM listener to DOM Node.\n\t\tthis._domNode.addEventListener( event, domListener, this._options );\n\n\t\tif ( !this._domListeners ) {\n\t\t\tthis._domListeners = {};\n\t\t}\n\n\t\t// Store the native DOM listener in this ProxyEmitter. It will be helpful\n\t\t// when stopping listening to the event.\n\t\tthis._domListeners[ event ] = domListener;\n\t}\n\n\t/**\n\t * Stops executing the callback on the given event.\n\t *\n\t * **Note**: This is automatically called by the\n\t * {@link module:utils/emittermixin~Emitter#stopListening `Emitter#stopListening()`}.\n\t *\n\t * @param event The name of the event.\n\t */\n\tpublic detach( event: string ): void {\n\t\tlet events;\n\n\t\t// Remove native DOM listeners which are orphans. If no callbacks\n\t\t// are awaiting given event, detach native DOM listener from DOM Node.\n\t\t// See: {@link attach}.\n\n\t\tif ( this._domListeners![ event ] && ( !( events = ( this as any )._events![ event ] ) || !events.callbacks.length ) ) {\n\t\t\tthis._domListeners![ event ].removeListener();\n\t\t}\n\t}\n\n\t/**\n\t * Adds callback to emitter for given event.\n\t *\n\t * @internal\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tpublic _addEventListener<TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions: CallbackOptions\n\t): void {\n\t\tthis.attach( event );\n\t\t( EmitterMixin().prototype as any )._addEventListener.call( this, event, callback, options );\n\t}\n\n\t/**\n\t * Removes callback from emitter for given event.\n\t *\n\t * @internal\n\t * @param event The name of the event.\n\t * @param callback The function to stop being called.\n\t */\n\tpublic _removeEventListener( event: string, callback: Function ) {\n\t\t( EmitterMixin().prototype as any )._removeEventListener.call( this, event, callback );\n\t\tthis.detach( event );\n\t}\n\n\t/**\n\t * Creates a native DOM listener callback. When the native DOM event\n\t * is fired it will fire corresponding event on this ProxyEmitter.\n\t * Note: A native DOM Event is passed as an argument.\n\t *\n\t * @param event The name of the event.\n\t * @returns The DOM listener callback.\n\t */\n\tprivate _createDomListener( event: string ) {\n\t\tconst domListener = ( domEvt: unknown ) => {\n\t\t\tthis.fire( event, domEvt );\n\t\t};\n\n\t\t// Supply the DOM listener callback with a function that will help\n\t\t// detach it from the DOM Node, when it is no longer necessary.\n\t\t// See: {@link detach}.\n\t\tdomListener.removeListener = () => {\n\t\t\tthis._domNode.removeEventListener( event, domListener, this._options );\n\t\t\tdelete this._domListeners![ event ];\n\t\t};\n\n\t\treturn domListener;\n\t}\n}\n\n/**\n * Gets an unique DOM Node identifier. The identifier will be set if not defined.\n *\n * @returns UID for given DOM Node.\n */\nfunction getNodeUID( node: any ): string {\n\treturn node[ 'data-ck-expando' ] || ( node[ 'data-ck-expando' ] = uid() );\n}\n\n/**\n * Gets id of the ProxyEmitter for the given node.\n */\nfunction getProxyEmitterId( node: Node | Window, options: { [ option: string ]: any } ): string {\n\tlet id = getNodeUID( node );\n\n\tfor ( const option of Object.keys( options ).sort() ) {\n\t\tif ( options[ option ] ) {\n\t\t\tid += '-' + option;\n\t\t}\n\t}\n\n\treturn id;\n}\n\n/**\n * Interface representing classes which mix in {@link module:utils/dom/emittermixin~DomEmitterMixin}.\n *\n * Can be easily implemented by a class by mixing the {@link module:utils/dom/emittermixin~DomEmitterMixin} mixin.\n *\n * ```ts\n * class MyClass extends DomEmitterMixin( OtherBaseClass ) {\n * \t// This class now implements the `Emitter` interface.\n * }\n * ```\n */\nexport interface DomEmitter extends Emitter {\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired in a specific Emitter or DOM Node.\n\t * It is backwards compatible with {@link module:utils/emittermixin~Emitter#listenTo}.\n\t *\n\t * @param emitter The object that fires the event.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t * @param options.useCapture Indicates that events of this type will be dispatched to the registered\n\t * listener before being dispatched to any EventTarget beneath it in the DOM tree.\n\t * @param options.usePassive Indicates that the function specified by listener will never call preventDefault()\n\t * and prevents blocking browser's main thread by this event handler.\n\t */\n\tlistenTo<K extends keyof HTMLElementEventMap>(\n\t\temitter: Node | Window,\n\t\tevent: K,\n\t\tcallback: ( this: this, ev: EventInfo, event: HTMLElementEventMap[ K ] ) => void,\n\t\toptions?: CallbackOptions & { readonly useCapture?: boolean; readonly usePassive?: boolean }\n\t): void;\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired in a specific (emitter) object.\n\t *\n\t * Events can be grouped in namespaces using `:`.\n\t * When namespaced event is fired, it additionally fires all callbacks for that namespace.\n\t *\n\t * ```ts\n\t * // myEmitter.on( ... ) is a shorthand for myEmitter.listenTo( myEmitter, ... ).\n\t * myEmitter.on( 'myGroup', genericCallback );\n\t * myEmitter.on( 'myGroup:myEvent', specificCallback );\n\t *\n\t * // genericCallback is fired.\n\t * myEmitter.fire( 'myGroup' );\n\t * // both genericCallback and specificCallback are fired.\n\t * myEmitter.fire( 'myGroup:myEvent' );\n\t * // genericCallback is fired even though there are no callbacks for \"foo\".\n\t * myEmitter.fire( 'myGroup:foo' );\n\t * ```\n\t *\n\t * An event callback can {@link module:utils/eventinfo~EventInfo#stop stop the event} and\n\t * set the {@link module:utils/eventinfo~EventInfo#return return value} of the {@link #fire} method.\n\t *\n\t * @typeParam TEvent The type descibing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param emitter The object that fires the event.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tlistenTo<TEvent extends BaseEvent>(\n\t\temitter: Emitter,\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: CallbackOptions\n\t): void;\n\n\t/**\n\t * Stops listening for events. It can be used at different levels:\n\t * It is backwards compatible with {@link module:utils/emittermixin~Emitter#listenTo}.\n\t *\n\t * * To stop listening to a specific callback.\n\t * * To stop listening to a specific event.\n\t * * To stop listening to all events fired by a specific object.\n\t * * To stop listening to all events fired by all objects.\n\t *\n\t * @param emitter The object to stop listening to.\n\t * If omitted, stops it for all objects.\n\t * @param event (Requires the `emitter`) The name of the event to stop listening to. If omitted, stops it\n\t * for all events from `emitter`.\n\t * @param callback (Requires the `event`) The function to be removed from the call list for the given\n\t * `event`.\n\t */\n\tstopListening( emitter?: Emitter | Node | Window, event?: string, callback?: Function ): void;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals window, document */\n\n/**\n * @module utils/dom/global\n */\n\n// This interface exists to make our API pages more readable.\n/**\n * A helper (module) giving an access to the global DOM objects such as `window` and `document`.\n */\nexport interface GlobalType {\n\treadonly window: Window & typeof globalThis;\n\treadonly document: Document;\n}\n\n/**\n * A helper (module) giving an access to the global DOM objects such as `window` and\n * `document`. Accessing these objects using this helper allows easy and bulletproof\n * testing, i.e. stubbing native properties:\n *\n * ```ts\n * import { global } from 'ckeditor5/utils';\n *\n * // This stub will work for any code using global module.\n * testUtils.sinon.stub( global, 'window', {\n * \tinnerWidth: 10000\n * } );\n *\n * console.log( global.window.innerWidth );\n * ```\n */\nlet global: GlobalType;\n\n// In some environments window and document API might not be available.\ntry {\n\tglobal = { window, document };\n} catch ( e ) {\n\t// It's not possible to mock a window object to simulate lack of a window object without writing extremely convoluted code.\n\t/* istanbul ignore next */\n\n\t// Let's cast it to not change module's API.\n\t// We only handle this so loading editor in environments without window and document doesn't fail.\n\t// For better DX we shouldn't introduce mixed types and require developers to check the type manually.\n\t// This module should not be used on purpose in any environment outside browser.\n\tglobal = { window: {} as any, document: {} as any };\n}\n\nexport default global;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals Node */\n\n/**\n * @module utils/dom/getancestors\n */\n\n/**\n * Returns all ancestors of given DOM node, starting from the top-most (root). Includes the given node itself. If the\n * node is a part of `DocumentFragment` that `DocumentFragment` will be returned. In contrary, if the node is\n * appended to a `Document`, that `Document` will not be returned (algorithms operating on DOM tree care for `Document#documentElement`\n * at most, which will be returned).\n *\n * @param node DOM node.\n * @returns Array of given `node` parents.\n */\nexport default function getAncestors( node: Node ): Array<Node> {\n\tconst nodes: Array<Node> = [];\n\tlet currentNode: Node | null = node;\n\n\t// We are interested in `Node`s `DocumentFragment`s only.\n\twhile ( currentNode && currentNode.nodeType != Node.DOCUMENT_NODE ) {\n\t\tnodes.unshift( currentNode );\n\t\tcurrentNode = currentNode.parentNode;\n\t}\n\n\treturn nodes;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/istext\n */\n\n/**\n * Checks if the object is a native DOM Text node.\n */\nexport default function isText( obj: unknown ): obj is Text {\n\treturn Object.prototype.toString.call( obj ) == '[object Text]';\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/isrange\n */\n\n/**\n * Checks if the object is a native DOM Range.\n */\nexport default function isRange( obj: unknown ): obj is Range {\n\treturn Object.prototype.toString.apply( obj ) == '[object Range]';\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/getborderwidths\n */\n\n/**\n * Returns an object containing CSS border widths of a specified HTML element.\n *\n * @param element An element which has CSS borders.\n * @returns An object containing `top`, `left`, `right` and `bottom` properties\n * with numerical values of the `border-[top,left,right,bottom]-width` CSS styles.\n */\nexport default function getBorderWidths( element: HTMLElement ): BorderWidths {\n\t// Call getComputedStyle on the window the element document belongs to.\n\tconst style = element.ownerDocument.defaultView!.getComputedStyle( element );\n\n\treturn {\n\t\ttop: parseInt( style.borderTopWidth, 10 ),\n\t\tright: parseInt( style.borderRightWidth, 10 ),\n\t\tbottom: parseInt( style.borderBottomWidth, 10 ),\n\t\tleft: parseInt( style.borderLeftWidth, 10 )\n\t};\n}\n\n/**\n * An object describing widths of `HTMLElement` borders.\n*/\nexport interface BorderWidths {\n\ttop: number;\n\tright: number;\n\tbottom: number;\n\tleft: number;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/rect\n */\n\nimport isRange from './isrange';\nimport isWindow from './iswindow';\nimport getBorderWidths from './getborderwidths';\nimport isText from './istext';\n\nconst rectProperties: Array<keyof RectLike> = [ 'top', 'right', 'bottom', 'left', 'width', 'height' ];\n\n/**\n * A helper class representing a `ClientRect` object, e.g. value returned by\n * the native `object.getBoundingClientRect()` method. Provides a set of methods\n * to manipulate the rect and compare it against other rect instances.\n */\nexport default class Rect {\n\t/**\n\t * The \"top\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic top!: number;\n\n\t/**\n\t * The \"right\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic right!: number;\n\n\t/**\n\t * The \"bottom\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic bottom!: number;\n\n\t/**\n\t * The \"left\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic left!: number;\n\n\t/**\n\t * The \"width\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic width!: number;\n\n\t/**\n\t * The \"height\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic height!: number;\n\n\t/**\n\t * The object this rect is for.\n\t *\n\t * @readonly\n\t */\n\tprivate _source!: RectSource;\n\n\t/**\n\t * Creates an instance of rect.\n\t *\n\t * ```ts\n\t * // Rect of an HTMLElement.\n\t * const rectA = new Rect( document.body );\n\t *\n\t * // Rect of a DOM Range.\n\t * const rectB = new Rect( document.getSelection().getRangeAt( 0 ) );\n\t *\n\t * // Rect of a window (web browser viewport).\n\t * const rectC = new Rect( window );\n\t *\n\t * // Rect out of an object.\n\t * const rectD = new Rect( { top: 0, right: 10, bottom: 10, left: 0, width: 10, height: 10 } );\n\t *\n\t * // Rect out of another Rect instance.\n\t * const rectE = new Rect( rectD );\n\t *\n\t * // Rect out of a ClientRect.\n\t * const rectF = new Rect( document.body.getClientRects().item( 0 ) );\n\t * ```\n\t *\n\t * **Note**: By default a rect of an HTML element includes its CSS borders and scrollbars (if any)\n\t * ant the rect of a `window` includes scrollbars too. Use {@link #excludeScrollbarsAndBorders}\n\t * to get the inner part of the rect.\n\t *\n\t * @param source A source object to create the rect.\n\t */\n\tconstructor( source: RectSource ) {\n\t\tconst isSourceRange = isRange( source );\n\n\t\tObject.defineProperty( this, '_source', {\n\t\t\t// If the source is a Rect instance, copy it's #_source.\n\t\t\tvalue: ( source as any )._source || source,\n\t\t\twritable: true,\n\t\t\tenumerable: false\n\t\t} );\n\n\t\tif ( isDomElement( source ) || isSourceRange ) {\n\t\t\t// The `Rect` class depends on `getBoundingClientRect` and `getClientRects` DOM methods. If the source\n\t\t\t// of a rect in an HTML element or a DOM range but it does not belong to any rendered DOM tree, these methods\n\t\t\t// will fail to obtain the geometry and the rect instance makes little sense to the features using it.\n\t\t\t// To get rid of this warning make sure the source passed to the constructor is a descendant of `window.document.body`.\n\t\t\t// @if CK_DEBUG // const sourceNode = isSourceRange ? source.startContainer : source;\n\t\t\t// @if CK_DEBUG // if ( !sourceNode.ownerDocument || !sourceNode.ownerDocument.body.contains( sourceNode ) ) {\n\t\t\t// @if CK_DEBUG // \tconsole.warn(\n\t\t\t// @if CK_DEBUG // \t\t'rect-source-not-in-dom: The source of this rect does not belong to any rendered DOM tree.',\n\t\t\t// @if CK_DEBUG // \t\t{ source } );\n\t\t\t// @if CK_DEBUG // }\n\n\t\t\tif ( isSourceRange ) {\n\t\t\t\tconst rangeRects = Rect.getDomRangeRects( source );\n\t\t\t\tcopyRectProperties( this, Rect.getBoundingRect( rangeRects )! );\n\t\t\t} else {\n\t\t\t\tcopyRectProperties( this, source.getBoundingClientRect() );\n\t\t\t}\n\t\t} else if ( isWindow( source ) ) {\n\t\t\tconst { innerWidth, innerHeight } = source;\n\n\t\t\tcopyRectProperties( this, {\n\t\t\t\ttop: 0,\n\t\t\t\tright: innerWidth,\n\t\t\t\tbottom: innerHeight,\n\t\t\t\tleft: 0,\n\t\t\t\twidth: innerWidth,\n\t\t\t\theight: innerHeight\n\t\t\t} );\n\t\t} else {\n\t\t\tcopyRectProperties( this, source );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a clone of the rect.\n\t *\n\t * @returns A cloned rect.\n\t */\n\tpublic clone(): Rect {\n\t\treturn new Rect( this );\n\t}\n\n\t/**\n\t * Moves the rect so that its upper–left corner lands in desired `[ x, y ]` location.\n\t *\n\t * @param x Desired horizontal location.\n\t * @param y Desired vertical location.\n\t * @returns A rect which has been moved.\n\t */\n\tpublic moveTo( x: number, y: number ): this {\n\t\tthis.top = y;\n\t\tthis.right = x + this.width;\n\t\tthis.bottom = y + this.height;\n\t\tthis.left = x;\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Moves the rect in–place by a dedicated offset.\n\t *\n\t * @param x A horizontal offset.\n\t * @param y A vertical offset\n\t * @returns A rect which has been moved.\n\t */\n\tpublic moveBy( x: number, y: number ): this {\n\t\tthis.top += y;\n\t\tthis.right += x;\n\t\tthis.left += x;\n\t\tthis.bottom += y;\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Returns a new rect a a result of intersection with another rect.\n\t */\n\tpublic getIntersection( anotherRect: Rect ): Rect | null {\n\t\tconst rect = {\n\t\t\ttop: Math.max( this.top, anotherRect.top ),\n\t\t\tright: Math.min( this.right, anotherRect.right ),\n\t\t\tbottom: Math.min( this.bottom, anotherRect.bottom ),\n\t\t\tleft: Math.max( this.left, anotherRect.left ),\n\t\t\twidth: 0,\n\t\t\theight: 0\n\t\t};\n\n\t\trect.width = rect.right - rect.left;\n\t\trect.height = rect.bottom - rect.top;\n\n\t\tif ( rect.width < 0 || rect.height < 0 ) {\n\t\t\treturn null;\n\t\t} else {\n\t\t\treturn new Rect( rect );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the area of intersection with another rect.\n\t *\n\t * @returns Area of intersection.\n\t */\n\tpublic getIntersectionArea( anotherRect: Rect ): number {\n\t\tconst rect = this.getIntersection( anotherRect );\n\n\t\tif ( rect ) {\n\t\t\treturn rect.getArea();\n\t\t} else {\n\t\t\treturn 0;\n\t\t}\n\t}\n\n\t/**\n\t * Returns the area of the rect.\n\t */\n\tpublic getArea(): number {\n\t\treturn this.width * this.height;\n\t}\n\n\t/**\n\t * Returns a new rect, a part of the original rect, which is actually visible to the user,\n\t * e.g. an original rect cropped by parent element rects which have `overflow` set in CSS\n\t * other than `\"visible\"`.\n\t *\n\t * If there's no such visible rect, which is when the rect is limited by one or many of\n\t * the ancestors, `null` is returned.\n\t *\n\t * @returns A visible rect instance or `null`, if there's none.\n\t */\n\tpublic getVisible(): Rect | null {\n\t\tconst source: RectSource & { parentNode?: Node | null; commonAncestorContainer?: Node | null } = this._source;\n\t\tlet visibleRect = this.clone();\n\n\t\t// There's no ancestor to crop <body> with the overflow.\n\t\tif ( !isBody( source ) ) {\n\t\t\tlet parent = source.parentNode || source.commonAncestorContainer;\n\n\t\t\t// Check the ancestors all the way up to the <body>.\n\t\t\twhile ( parent && !isBody( parent ) ) {\n\t\t\t\tconst parentRect = new Rect( parent as HTMLElement );\n\t\t\t\tconst intersectionRect = visibleRect.getIntersection( parentRect );\n\n\t\t\t\tif ( intersectionRect ) {\n\t\t\t\t\tif ( intersectionRect.getArea() < visibleRect.getArea() ) {\n\t\t\t\t\t\t// Reduce the visible rect to the intersection.\n\t\t\t\t\t\tvisibleRect = intersectionRect;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// There's no intersection, the rect is completely invisible.\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tparent = parent.parentNode;\n\t\t\t}\n\t\t}\n\n\t\treturn visibleRect;\n\t}\n\n\t/**\n\t * Checks if all property values ({@link #top}, {@link #left}, {@link #right},\n\t * {@link #bottom}, {@link #width} and {@link #height}) are the equal in both rect\n\t * instances.\n\t *\n\t * @param anotherRect A rect instance to compare with.\n\t * @returns `true` when Rects are equal. `false` otherwise.\n\t */\n\tpublic isEqual( anotherRect: Rect ): boolean {\n\t\tfor ( const prop of rectProperties ) {\n\t\t\tif ( this[ prop ] !== anotherRect[ prop ] ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks whether a rect fully contains another rect instance.\n\t *\n\t * @param anotherRect\n\t * @returns `true` if contains, `false` otherwise.\n\t */\n\tpublic contains( anotherRect: Rect ): boolean {\n\t\tconst intersectRect = this.getIntersection( anotherRect );\n\n\t\treturn !!( intersectRect && intersectRect.isEqual( anotherRect ) );\n\t}\n\n\t/**\n\t * Excludes scrollbars and CSS borders from the rect.\n\t *\n\t * * Borders are removed when {@link #_source} is an HTML element.\n\t * * Scrollbars are excluded from HTML elements and the `window`.\n\t *\n\t * @returns A rect which has been updated.\n\t */\n\tpublic excludeScrollbarsAndBorders(): this {\n\t\tconst source = this._source as ( HTMLElement | Window );\n\t\tlet scrollBarWidth, scrollBarHeight, direction;\n\n\t\tif ( isWindow( source ) ) {\n\t\t\tscrollBarWidth = source.innerWidth - source.document.documentElement.clientWidth;\n\t\t\tscrollBarHeight = source.innerHeight - source.document.documentElement.clientHeight;\n\t\t\tdirection = source.getComputedStyle( source.document.documentElement ).direction;\n\t\t} else {\n\t\t\tconst borderWidths = getBorderWidths( source );\n\n\t\t\tscrollBarWidth = source.offsetWidth - source.clientWidth - borderWidths.left - borderWidths.right;\n\t\t\tscrollBarHeight = source.offsetHeight - source.clientHeight - borderWidths.top - borderWidths.bottom;\n\t\t\tdirection = source.ownerDocument.defaultView!.getComputedStyle( source ).direction;\n\n\t\t\tthis.left += borderWidths.left;\n\t\t\tthis.top += borderWidths.top;\n\t\t\tthis.right -= borderWidths.right;\n\t\t\tthis.bottom -= borderWidths.bottom;\n\t\t\tthis.width = this.right - this.left;\n\t\t\tthis.height = this.bottom - this.top;\n\t\t}\n\n\t\tthis.width -= scrollBarWidth;\n\n\t\tif ( direction === 'ltr' ) {\n\t\t\tthis.right -= scrollBarWidth;\n\t\t} else {\n\t\t\tthis.left += scrollBarWidth;\n\t\t}\n\n\t\tthis.height -= scrollBarHeight;\n\t\tthis.bottom -= scrollBarHeight;\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Returns an array of rects of the given native DOM Range.\n\t *\n\t * @param range A native DOM range.\n\t * @returns DOM Range rects.\n\t */\n\tpublic static getDomRangeRects( range: Range ): Array<Rect> {\n\t\tconst rects: Array<Rect> = [];\n\t\t// Safari does not iterate over ClientRectList using for...of loop.\n\t\tconst clientRects = Array.from( range.getClientRects() );\n\n\t\tif ( clientRects.length ) {\n\t\t\tfor ( const rect of clientRects ) {\n\t\t\t\trects.push( new Rect( rect ) );\n\t\t\t}\n\t\t}\n\t\t// If there's no client rects for the Range, use parent container's bounding rect\n\t\t// instead and adjust rect's width to simulate the actual geometry of such range.\n\t\t// https://github.com/ckeditor/ckeditor5-utils/issues/153\n\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/317\n\t\telse {\n\t\t\tlet startContainer = range.startContainer;\n\n\t\t\tif ( isText( startContainer ) ) {\n\t\t\t\tstartContainer = startContainer.parentNode!;\n\t\t\t}\n\n\t\t\tconst rect = new Rect( ( startContainer as Element ).getBoundingClientRect() );\n\t\t\trect.right = rect.left;\n\t\t\trect.width = 0;\n\n\t\t\trects.push( rect );\n\t\t}\n\n\t\treturn rects;\n\t}\n\n\t/**\n\t * Returns a bounding rectangle that contains all the given `rects`.\n\t *\n\t * @param rects A list of rectangles that should be contained in the result rectangle.\n\t * @returns Bounding rectangle or `null` if no `rects` were given.\n\t */\n\tpublic static getBoundingRect( rects: Iterable<Rect> ): Rect | null {\n\t\tconst boundingRectData = {\n\t\t\tleft: Number.POSITIVE_INFINITY,\n\t\t\ttop: Number.POSITIVE_INFINITY,\n\t\t\tright: Number.NEGATIVE_INFINITY,\n\t\t\tbottom: Number.NEGATIVE_INFINITY,\n\t\t\twidth: 0,\n\t\t\theight: 0\n\t\t};\n\t\tlet rectangleCount = 0;\n\n\t\tfor ( const rect of rects ) {\n\t\t\trectangleCount++;\n\n\t\t\tboundingRectData.left = Math.min( boundingRectData.left, rect.left );\n\t\t\tboundingRectData.top = Math.min( boundingRectData.top, rect.top );\n\t\t\tboundingRectData.right = Math.max( boundingRectData.right, rect.right );\n\t\t\tboundingRectData.bottom = Math.max( boundingRectData.bottom, rect.bottom );\n\t\t}\n\n\t\tif ( rectangleCount == 0 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tboundingRectData.width = boundingRectData.right - boundingRectData.left;\n\t\tboundingRectData.height = boundingRectData.bottom - boundingRectData.top;\n\n\t\treturn new Rect( boundingRectData );\n\t}\n}\n\n/**\n * A source of {@link module:utils/dom/rect~Rect}.\n */\nexport type RectSource = HTMLElement | Range | Window | RectLike;\n\n/**\n * An object that describes properties of `ClientRect` object.\n */\nexport interface RectLike {\n\treadonly top: number;\n\treadonly right: number;\n\treadonly bottom: number;\n\treadonly left: number;\n\treadonly width: number;\n\treadonly height: number;\n}\n\n/**\n * Acquires all the rect properties from the passed source.\n */\nfunction copyRectProperties( rect: Rect, source: RectLike ): void {\n\tfor ( const p of rectProperties ) {\n\t\trect[ p ] = source[ p ];\n\t}\n}\n\n/**\n * Checks if provided object is a <body> HTML element.\n */\nfunction isBody( value: unknown ): value is HTMLBodyElement {\n\tif ( !isDomElement( value ) ) {\n\t\treturn false;\n\t}\n\n\treturn value === value.ownerDocument.body;\n}\n\n/**\n * Checks if provided object \"looks like\" a DOM Element and has API required by `Rect` class.\n */\nfunction isDomElement( value: any ): value is Element {\n\t// Note: earlier we used `isElement()` from lodash library, however that function is less performant because\n\t// it makes complicated checks to make sure that given value is a DOM element.\n\treturn value !== null && typeof value === 'object' && value.nodeType === 1 && typeof value.getBoundingClientRect === 'function';\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/resizeobserver\n */\n\nimport global from './global';\n\n/**\n * A helper class which instances allow performing custom actions when native DOM elements are resized.\n *\n * ```ts\n * const editableElement = editor.editing.view.getDomRoot();\n *\n * const observer = new ResizeObserver( editableElement, entry => {\n * \tconsole.log( 'The editable element has been resized in DOM.' );\n * \tconsole.log( entry.target ); // -> editableElement\n * \tconsole.log( entry.contentRect.width ); // -> e.g. '423px'\n * } );\n * ```\n *\n * It uses the [native DOM resize observer](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver)\n * under the hood.\n */\nexport default class ResizeObserver {\n\t/**\n\t * The element observed by this observer.\n\t */\n\tprivate readonly _element: Element;\n\n\t/**\n\t * The callback executed each time {@link #_element} is resized.\n\t */\n\tprivate readonly _callback: ( entry: ResizeObserverEntry ) => void;\n\n\t/**\n\t * The single native observer instance shared across all {@link module:utils/dom/resizeobserver~ResizeObserver} instances.\n\t */\n\tprivate static _observerInstance: InstanceType<typeof global.window.ResizeObserver> | null = null;\n\n\t/**\n\t * A mapping of native DOM elements and their callbacks shared across all\n\t * {@link module:utils/dom/resizeobserver~ResizeObserver} instances.\n\t */\n\tprivate static _elementCallbacks: Map<Element, Set<( entry: ResizeObserverEntry ) => void>> | null = null;\n\n\t/**\n\t * Creates an instance of the `ResizeObserver` class.\n\t *\n\t * @param element A DOM element that is to be observed for resizing. Note that\n\t * the element must be visible (i.e. not detached from DOM) for the observer to work.\n\t * @param callback A function called when the observed element was resized. It passes\n\t * the [`ResizeObserverEntry`](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserverEntry)\n\t * object with information about the resize event.\n\t */\n\tconstructor( element: Element, callback: ( entry: ResizeObserverEntry ) => void ) {\n\t\t// **Note**: For the maximum performance, this class ensures only a single instance of the native\n\t\t// observer is used no matter how many instances of this class were created.\n\t\tif ( !ResizeObserver._observerInstance ) {\n\t\t\tResizeObserver._createObserver();\n\t\t}\n\n\t\tthis._element = element;\n\t\tthis._callback = callback;\n\n\t\tResizeObserver._addElementCallback( element, callback );\n\t\tResizeObserver._observerInstance!.observe( element );\n\t}\n\n\t/**\n\t * Destroys the observer which disables the `callback` passed to the {@link #constructor}.\n\t */\n\tpublic destroy(): void {\n\t\tResizeObserver._deleteElementCallback( this._element, this._callback );\n\t}\n\n\t/**\n\t * Registers a new resize callback for the DOM element.\n\t */\n\tprivate static _addElementCallback( element: Element, callback: ( entry: ResizeObserverEntry ) => void ): void {\n\t\tif ( !ResizeObserver._elementCallbacks ) {\n\t\t\tResizeObserver._elementCallbacks = new Map();\n\t\t}\n\n\t\tlet callbacks = ResizeObserver._elementCallbacks.get( element );\n\n\t\tif ( !callbacks ) {\n\t\t\tcallbacks = new Set();\n\t\t\tResizeObserver._elementCallbacks.set( element, callbacks );\n\t\t}\n\n\t\tcallbacks.add( callback );\n\t}\n\n\t/**\n\t * Removes a resize callback from the DOM element. If no callbacks are left\n\t * for the element, it removes the element from the native observer.\n\t */\n\tprivate static _deleteElementCallback( element: Element, callback: ( entry: ResizeObserverEntry ) => void ): void {\n\t\tconst callbacks = ResizeObserver._getElementCallbacks( element );\n\n\t\t// Remove the element callback. Check if exist first in case someone\n\t\t// called destroy() twice.\n\t\tif ( callbacks ) {\n\t\t\tcallbacks.delete( callback );\n\n\t\t\t// If no callbacks left for the element, also remove the element.\n\t\t\tif ( !callbacks.size ) {\n\t\t\t\tResizeObserver._elementCallbacks!.delete( element );\n\t\t\t\tResizeObserver._observerInstance!.unobserve( element );\n\t\t\t}\n\t\t}\n\n\t\tif ( ResizeObserver._elementCallbacks && !ResizeObserver._elementCallbacks.size ) {\n\t\t\tResizeObserver._observerInstance = null;\n\t\t\tResizeObserver._elementCallbacks = null;\n\t\t}\n\t}\n\n\t/**\n\t * Returns are registered resize callbacks for the DOM element.\n\t */\n\tprivate static _getElementCallbacks( element: Element ): Set<( entry: ResizeObserverEntry ) => void> | null | undefined {\n\t\tif ( !ResizeObserver._elementCallbacks ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn ResizeObserver._elementCallbacks.get( element );\n\t}\n\n\t/**\n\t * Creates the single native observer shared across all `ResizeObserver` instances.\n\t */\n\tprivate static _createObserver(): void {\n\t\tResizeObserver._observerInstance = new global.window.ResizeObserver( entries => {\n\t\t\tfor ( const entry of entries ) {\n\t\t\t\tconst callbacks = ResizeObserver._getElementCallbacks( entry.target );\n\n\t\t\t\tif ( callbacks ) {\n\t\t\t\t\tfor ( const callback of callbacks ) {\n\t\t\t\t\t\tcallback( entry );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/setdatainelement\n */\n\n/* globals HTMLTextAreaElement */\n\n/**\n * Sets data in a given element.\n *\n * @param el The element in which the data will be set.\n * @param data The data string.\n */\nexport default function setDataInElement( el: HTMLElement, data: string ): void {\n\tif ( el instanceof HTMLTextAreaElement ) {\n\t\tel.value = data;\n\t}\n\n\tel.innerHTML = data;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/tounit\n */\n\n/**\n * Returns a helper function, which adds a desired trailing\n * `unit` to the passed value.\n *\n * @param unit An unit like \"px\" or \"em\".\n */\nexport default function toUnit( unit: string ): ToUnitHelper {\n\treturn value => value + unit;\n}\n\n/**\n * A function, which adds a pre–defined trailing `unit`\n * to the passed `value`.\n *\n * @param value A value to be given the unit.\n * @returns A value with the trailing unit.\n */\nexport type ToUnitHelper = ( value: string | number ) => string;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/indexof\n */\n\n/**\n * Returns index of the node in the parent element.\n *\n * @param node Node which index is tested.\n * @returns Index of the node in the parent element. Returns 0 if node has no parent.\n */\nexport default function indexOf( node: Node ): number {\n\tlet index = 0;\n\n\twhile ( node.previousSibling ) {\n\t\tnode = node.previousSibling;\n\t\tindex++;\n\t}\n\n\treturn index;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/insertat\n */\n\n/**\n * Inserts node to the parent at given index.\n *\n * @param parentElement Parent element.\n * @param index Insertions index.\n * @param nodeToInsert Node to insert.\n */\nexport default function insertAt(\n\tparentElement: Element,\n\tindex: number,\n\tnodeToInsert: Node\n): void {\n\tparentElement.insertBefore( nodeToInsert, parentElement.childNodes[ index ] || null );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals Node */\n\n/**\n * @module utils/dom/iscomment\n */\n\n/**\n * Checks whether the object is a native DOM Comment node.\n */\nexport default function isComment( obj: any ): obj is Comment {\n\treturn obj && obj.nodeType === Node.COMMENT_NODE;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/isvisible\n */\n\n/**\n * Checks whether the element is visible to the user in DOM:\n *\n * * connected to the root of the document,\n * * has no `display: none`,\n * * has no ancestors with `display: none`.\n *\n * **Note**: This helper does not check whether the element is hidden by cropping, overflow, etc..\n * To check that, use {@link module:utils/dom/rect~Rect} instead.\n */\nexport default function isVisible( element: HTMLElement | null | undefined ): boolean {\n\treturn !!( element && element.getClientRects && element.getClientRects().length );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/position\n */\n\nimport global from './global';\nimport Rect, { type RectSource } from './rect';\nimport getPositionedAncestor from './getpositionedancestor';\nimport getBorderWidths from './getborderwidths';\nimport { isFunction } from 'lodash-es';\n\n// @if CK_DEBUG_POSITION // const { RectDrawer } = require( '@ckeditor/ckeditor5-minimap/src/utils' );\n\n/**\n * Calculates the `position: absolute` coordinates of a given element so it can be positioned with respect to the\n * target in the visually most efficient way, taking various restrictions like viewport or limiter geometry\n * into consideration.\n *\n * ```ts\n * // The element which is to be positioned.\n * const element = document.body.querySelector( '#toolbar' );\n *\n * // A target to which the element is positioned relatively.\n * const target = document.body.querySelector( '#container' );\n *\n * // Finding the optimal coordinates for the positioning.\n * const { left, top, name } = getOptimalPosition( {\n * \telement: element,\n * \ttarget: target,\n *\n * \t// The algorithm will chose among these positions to meet the requirements such\n * \t// as \"limiter\" element or \"fitInViewport\", set below. The positions are considered\n * \t// in the order of the array.\n * \tpositions: [\n * \t\t//\n * \t \t//\t[ Target ]\n * \t\t//\t+-----------------+\n * \t\t//\t|     Element     |\n * \t\t//\t+-----------------+\n * \t\t//\n * \t\ttargetRect => ( {\n * \t\t\ttop: targetRect.bottom,\n * \t\t\tleft: targetRect.left,\n * \t\t\tname: 'mySouthEastPosition'\n * \t\t} ),\n *\n * \t\t//\n * \t\t//\t+-----------------+\n * \t\t//\t|     Element     |\n * \t\t//\t+-----------------+\n * \t\t//\t[ Target ]\n * \t\t//\n * \t\t( targetRect, elementRect ) => ( {\n * \t\t\ttop: targetRect.top - elementRect.height,\n * \t\t\tleft: targetRect.left,\n * \t\t\tname: 'myNorthEastPosition'\n * \t\t} )\n * \t],\n *\n * \t// Find a position such guarantees the element remains within visible boundaries of <body>.\n * \tlimiter: document.body,\n *\n * \t// Find a position such guarantees the element remains within visible boundaries of the browser viewport.\n * \tfitInViewport: true\n * } );\n *\n * // The best position which fits into document.body and the viewport. May be useful\n * // to set proper class on the `element`.\n * console.log( name ); // -> \"myNorthEastPosition\"\n *\n * // Using the absolute coordinates which has been found to position the element\n * // as in the diagram depicting the \"myNorthEastPosition\" position.\n * element.style.top = top;\n * element.style.left = left;\n * ```\n *\n * @param options The input data and configuration of the helper.\n */\nexport function getOptimalPosition( { element, target, positions, limiter, fitInViewport, viewportOffsetConfig }: Options ): Position {\n\t// If the {@link module:utils/dom/position~Options#target} is a function, use what it returns.\n\t// https://github.com/ckeditor/ckeditor5-utils/issues/157\n\tif ( isFunction( target ) ) {\n\t\ttarget = target();\n\t}\n\n\t// If the {@link module:utils/dom/position~Options#limiter} is a function, use what it returns.\n\t// https://github.com/ckeditor/ckeditor5-ui/issues/260\n\tif ( isFunction( limiter ) ) {\n\t\tlimiter = limiter();\n\t}\n\n\tconst positionedElementAncestor = getPositionedAncestor( element );\n\tconst elementRect = new Rect( element );\n\tconst targetRect = new Rect( target );\n\n\tlet bestPosition: Position;\n\n\t// @if CK_DEBUG_POSITION // RectDrawer.clear();\n\t// @if CK_DEBUG_POSITION // RectDrawer.draw( targetRect, { outlineWidth: '5px' }, 'Target' );\n\n\tconst viewportRect = fitInViewport && getConstrainedViewportRect( viewportOffsetConfig ) || null;\n\tconst positionOptions = { targetRect, elementRect, positionedElementAncestor, viewportRect };\n\n\t// If there are no limits, just grab the very first position and be done with that drama.\n\tif ( !limiter && !fitInViewport ) {\n\t\tbestPosition = new PositionObject( positions[ 0 ], positionOptions );\n\t} else {\n\t\tconst limiterRect = limiter && new Rect( limiter ).getVisible();\n\n\t\t// @if CK_DEBUG_POSITION // if ( viewportRect ) {\n\t\t// @if CK_DEBUG_POSITION //\t\tRectDrawer.draw( viewportRect, { outlineWidth: '5px' }, 'Viewport' );\n\t\t// @if CK_DEBUG_POSITION // }\n\n\t\t// @if CK_DEBUG_POSITION // if ( limiter ) {\n\t\t// @if CK_DEBUG_POSITION // \tRectDrawer.draw( limiterRect, { outlineWidth: '5px', outlineColor: 'green' }, 'Visible limiter' );\n\t\t// @if CK_DEBUG_POSITION // }\n\n\t\tObject.assign( positionOptions, { limiterRect, viewportRect } );\n\n\t\t// If there's no best position found, i.e. when all intersections have no area because\n\t\t// rects have no width or height, then just use the first available position.\n\t\tbestPosition = getBestPosition( positions, positionOptions ) || new PositionObject( positions[ 0 ], positionOptions );\n\t}\n\n\treturn bestPosition;\n}\n\n/**\n * Returns a viewport `Rect` shrunk by the viewport offset config from all sides.\n */\nfunction getConstrainedViewportRect( viewportOffsetConfig: Options[ 'viewportOffsetConfig' ] ): Rect {\n\tviewportOffsetConfig = Object.assign( { top: 0, bottom: 0, left: 0, right: 0 }, viewportOffsetConfig );\n\n\tconst viewportRect = new Rect( global.window );\n\n\tviewportRect.top += viewportOffsetConfig.top!;\n\tviewportRect.height -= viewportOffsetConfig.top!;\n\tviewportRect.bottom -= viewportOffsetConfig.bottom!;\n\tviewportRect.height -= viewportOffsetConfig.bottom!;\n\n\treturn viewportRect;\n}\n\n/**\n * For a given array of positioning functions, returns such that provides the best\n * fit of the `elementRect` into the `limiterRect` and `viewportRect`.\n */\nfunction getBestPosition(\n\tpositions: ReadonlyArray<PositioningFunction>,\n\toptions: ConstructorParameters<typeof PositionObject>[ 1 ]\n): Position | null {\n\tconst { elementRect } = options;\n\n\t// This is when element is fully visible.\n\tconst elementRectArea = elementRect.getArea();\n\n\tconst positionInstances = positions\n\t\t.map( positioningFunction => new PositionObject( positioningFunction, options ) )\n\t\t// Some positioning functions may return `null` if they don't want to participate.\n\t\t.filter( position => !!position.name );\n\n\tlet maxFitFactor = 0;\n\tlet bestPosition = null;\n\n\tfor ( const position of positionInstances ) {\n\t\tconst { limiterIntersectionArea, viewportIntersectionArea } = position;\n\n\t\t// If a such position is found that element is fully contained by the limiter then, obviously,\n\t\t// there will be no better one, so finishing.\n\t\tif ( limiterIntersectionArea === elementRectArea ) {\n\t\t\treturn position;\n\t\t}\n\n\t\t// To maximize both viewport and limiter intersection areas we use distance on _viewportIntersectionArea\n\t\t// and _limiterIntersectionArea plane (without sqrt because we are looking for max value).\n\t\tconst fitFactor = viewportIntersectionArea ** 2 + limiterIntersectionArea ** 2;\n\n\t\tif ( fitFactor > maxFitFactor ) {\n\t\t\tmaxFitFactor = fitFactor;\n\t\t\tbestPosition = position;\n\t\t}\n\t}\n\n\treturn bestPosition;\n}\n\n/**\n * For a given absolute Rect coordinates object and a positioned element ancestor, it updates its\n * coordinates that make up for the position and the scroll of the ancestor.\n *\n * This is necessary because while Rects (and DOMRects) are relative to the browser's viewport, their coordinates\n * are used in real–life to position elements with `position: absolute`, which are scoped by any positioned\n * (and scrollable) ancestors.\n */\nfunction shiftRectToCompensatePositionedAncestor( rect: Rect, positionedElementAncestor: HTMLElement ): void {\n\tconst ancestorPosition = getRectForAbsolutePositioning( new Rect( positionedElementAncestor ) );\n\tconst ancestorBorderWidths = getBorderWidths( positionedElementAncestor );\n\n\tlet moveX = 0;\n\tlet moveY = 0;\n\n\t// (https://github.com/ckeditor/ckeditor5-ui-default/issues/126)\n\t// If there's some positioned ancestor of the panel, then its `Rect` must be taken into\n\t// consideration. `Rect` is always relative to the viewport while `position: absolute` works\n\t// with respect to that positioned ancestor.\n\tmoveX -= ancestorPosition.left;\n\tmoveY -= ancestorPosition.top;\n\n\t// (https://github.com/ckeditor/ckeditor5-utils/issues/139)\n\t// If there's some positioned ancestor of the panel, not only its position must be taken into\n\t// consideration (see above) but also its internal scrolls. Scroll have an impact here because `Rect`\n\t// is relative to the viewport (it doesn't care about scrolling), while `position: absolute`\n\t// must compensate that scrolling.\n\tmoveX += positionedElementAncestor.scrollLeft;\n\tmoveY += positionedElementAncestor.scrollTop;\n\n\t// (https://github.com/ckeditor/ckeditor5-utils/issues/139)\n\t// If there's some positioned ancestor of the panel, then its `Rect` includes its CSS `borderWidth`\n\t// while `position: absolute` positioning does not consider it.\n\t// E.g. `{ position: absolute, top: 0, left: 0 }` means upper left corner of the element,\n\t// not upper-left corner of its border.\n\tmoveX -= ancestorBorderWidths.left;\n\tmoveY -= ancestorBorderWidths.top;\n\n\trect.moveBy( moveX, moveY );\n}\n\n/**\n * DOMRect (also Rect) works in a scroll–independent geometry but `position: absolute` doesn't.\n * This function converts Rect to `position: absolute` coordinates.\n */\nfunction getRectForAbsolutePositioning( rect: Rect ): Rect {\n\tconst { scrollX, scrollY } = global.window;\n\n\treturn rect.clone().moveBy( scrollX, scrollY );\n}\n\n/**\n * A position object which instances are created and used by the {@link module:utils/dom/position~getOptimalPosition} helper.\n *\n * {@link module:utils/dom/position~Position#top} and {@link module:utils/dom/position~Position#left} properties of the position instance\n * translate directly to the `top` and `left` properties in CSS \"`position: absolute` coordinate system\". If set on the positioned element\n * in DOM, they will make it display it in the right place in the viewport.\n */\nexport interface Position {\n\n\t/**\n\t * Position name.\n\t */\n\treadonly name?: string;\n\n\t/**\n\t * Additional position configuration, as passed from the {@link module:utils/dom/position~PositioningFunction positioning function}.\n\t *\n\t * This object can be use, for instance, to pass through presentation options used by the consumer of the\n\t * {@link module:utils/dom/position~getOptimalPosition} helper.\n\t */\n\treadonly config?: object;\n\n\t/**\n\t * The left value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\treadonly left: number;\n\n\t/**\n\t * The top value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\treadonly top: number;\n}\n\n/**\n * A position class which instances are created and used by the {@link module:utils/dom/position~getOptimalPosition} helper.\n *\n * {@link module:utils/dom/position~Position#top} and {@link module:utils/dom/position~Position#left} properties of the position instance\n * translate directly to the `top` and `left` properties in CSS \"`position: absolute` coordinate system\". If set on the positioned element\n * in DOM, they will make it display it in the right place in the viewport.\n */\nclass PositionObject implements Position {\n\tpublic name?: string;\n\tpublic config?: object;\n\n\tprivate _positioningFunctionCorrdinates!: { left: number; top: number };\n\tprivate _options!: ConstructorParameters<typeof PositionObject>[ 1 ];\n\tprivate _cachedRect?: Rect;\n\tprivate _cachedAbsoluteRect?: Rect;\n\n\t/**\n\t * Creates an instance of the {@link module:utils/dom/position~PositionObject} class.\n\t *\n\t * @param positioningFunction function The function that defines the expected\n\t * coordinates the positioned element should move to.\n\t * @param options options object.\n\t * @param options.elementRect The positioned element rect.\n\t * @param options.targetRect The target element rect.\n\t * @param options.viewportRect The viewport rect.\n\t * @param options.limiterRect The limiter rect.\n\t * @param options.positionedElementAncestor Nearest element ancestor element which CSS position is not \"static\".\n\t */\n\tconstructor(\n\t\tpositioningFunction: PositioningFunction,\n\t\toptions: {\n\t\t\treadonly elementRect: Rect;\n\t\t\treadonly targetRect: Rect;\n\t\t\treadonly viewportRect: Rect | null;\n\t\t\treadonly positionedElementAncestor?: HTMLElement | null;\n\t\t\treadonly limiterRect?: Rect;\n\t\t}\n\t) {\n\t\tconst positioningFunctionOutput = positioningFunction( options.targetRect, options.elementRect, options.viewportRect );\n\n\t\t// Nameless position for a function that didn't participate.\n\t\tif ( !positioningFunctionOutput ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { left, top, name, config } = positioningFunctionOutput;\n\n\t\tthis.name = name;\n\t\tthis.config = config;\n\n\t\tthis._positioningFunctionCorrdinates = { left, top };\n\t\tthis._options = options;\n\t}\n\n\t/**\n\t * The left value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\tpublic get left(): number {\n\t\treturn this._absoluteRect.left;\n\t}\n\n\t/**\n\t * The top value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\tpublic get top(): number {\n\t\treturn this._absoluteRect.top;\n\t}\n\n\t/**\n\t * An intersection area between positioned element and limiter within viewport constraints.\n\t */\n\tpublic get limiterIntersectionArea(): number {\n\t\tconst limiterRect = this._options.limiterRect;\n\n\t\tif ( limiterRect ) {\n\t\t\tconst viewportRect = this._options.viewportRect;\n\n\t\t\tif ( viewportRect ) {\n\t\t\t\t// Consider only the part of the limiter which is visible in the viewport. So the limiter is getting limited.\n\t\t\t\tconst limiterViewportIntersectRect = limiterRect.getIntersection( viewportRect );\n\n\t\t\t\tif ( limiterViewportIntersectRect ) {\n\t\t\t\t\t// If the limiter is within the viewport, then check the intersection between that part of the\n\t\t\t\t\t// limiter and actual position.\n\t\t\t\t\treturn limiterViewportIntersectRect.getIntersectionArea( this._rect );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\treturn limiterRect.getIntersectionArea( this._rect );\n\t\t\t}\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * An intersection area between positioned element and viewport.\n\t */\n\tpublic get viewportIntersectionArea(): number {\n\t\tconst viewportRect = this._options.viewportRect;\n\n\t\tif ( viewportRect ) {\n\t\t\treturn viewportRect.getIntersectionArea( this._rect );\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * An already positioned element rect. A clone of the element rect passed to the constructor\n\t * but placed in the viewport according to the positioning function.\n\t */\n\tprivate get _rect(): Rect {\n\t\tif ( this._cachedRect ) {\n\t\t\treturn this._cachedRect;\n\t\t}\n\n\t\tthis._cachedRect = this._options.elementRect.clone().moveTo(\n\t\t\tthis._positioningFunctionCorrdinates.left,\n\t\t\tthis._positioningFunctionCorrdinates.top\n\t\t);\n\n\t\treturn this._cachedRect;\n\t}\n\n\t/**\n\t * An already absolutely positioned element rect. See ({@link #_rect}).\n\t */\n\tprivate get _absoluteRect(): Rect {\n\t\tif ( this._cachedAbsoluteRect ) {\n\t\t\treturn this._cachedAbsoluteRect;\n\t\t}\n\n\t\tthis._cachedAbsoluteRect = getRectForAbsolutePositioning( this._rect );\n\n\t\tif ( this._options.positionedElementAncestor ) {\n\t\t\tshiftRectToCompensatePositionedAncestor( this._cachedAbsoluteRect, this._options.positionedElementAncestor );\n\t\t}\n\n\t\treturn this._cachedAbsoluteRect!;\n\t}\n}\n\n/**\n * The `getOptimalPosition()` helper options.\n */\nexport interface Options {\n\n\t/**\n\t * Element that is to be positioned.\n\t */\n\treadonly element: HTMLElement;\n\n\t/**\n\t * Target with respect to which the `element` is to be positioned.\n\t */\n\treadonly target: RectSource | ( () => RectSource );\n\n\t/**\n\t * An array of positioning functions.\n\t *\n\t * **Note**: Positioning functions are processed in the order of preference. The first function that works\n\t * in the current environment (e.g. offers the complete fit in the viewport geometry) will be picked by\n\t * `getOptimalPosition()`.\n\t *\n\t * **Note**: Any positioning function returning `null` is ignored.\n\t */\n\treadonly positions: ReadonlyArray<PositioningFunction>;\n\n\t/**\n\t * When set, the algorithm will chose position which fits the most in the\n\t * limiter's bounding rect.\n\t */\n\treadonly limiter?: RectSource | ( () => ( RectSource | null ) ) | null;\n\n\t/**\n\t * When set, the algorithm will chose such a position which fits `element`\n\t * the most inside visible viewport.\n\t */\n\treadonly fitInViewport?: boolean;\n\n\t/**\n\t * Viewport offset config object. It restricts the visible viewport available to the `getOptimalPosition()` from each side.\n\t *\n\t * ```ts\n\t * {\n\t * \ttop: 50,\n\t * \tright: 50,\n\t * \tbottom: 50,\n\t * \tleft: 50\n\t * }\n\t * ```\n\t */\n\treadonly viewportOffsetConfig?: {\n\t\treadonly top?: number;\n\t\treadonly right?: number;\n\t\treadonly bottom?: number;\n\t\treadonly left?: number;\n\t};\n}\n\n/**\n * A positioning function which, based on positioned element and target {@link module:utils/dom/rect~Rect Rects}, returns rect coordinates\n * representing the geometrical relation between them. Used by the {@link module:utils/dom/position~getOptimalPosition} helper.\n *\n * ```ts\n * // This simple position will place the element directly under the target, in the middle:\n * //\n * //\t    [ Target ]\n * //\t+-----------------+\n * //\t|     Element     |\n * //\t+-----------------+\n * //\n * const position = ( targetRect, elementRect, [ viewportRect ] ) => ( {\n * \ttop: targetRect.bottom,\n * \tleft: targetRect.left + targetRect.width / 2 - elementRect.width / 2,\n * \tname: 'bottomMiddle',\n *\n * \t// Note: The config is optional.\n * \tconfig: {\n * \t\tzIndex: '999'\n * \t}\n * } );\n * ```\n *\n * @param elementRect The rect of the element to be positioned.\n * @param targetRect The rect of the target the element (its rect) is relatively positioned to.\n * @param viewportRect The rect of the visual browser viewport.\n * @returns When the function returns `null`, it will not be considered by {@link module:utils/dom/position~getOptimalPosition}.\n */\nexport type PositioningFunction = ( elementRect: Rect, targetRect: Rect, viewportRect: Rect | null ) => PositioningFunctionResult | null;\n\n/**\n * The result of {@link module:utils/dom/position~PositioningFunction}.\n */\nexport interface PositioningFunctionResult {\n\n\t/**\n\t * The `top` value of the element rect that would represent the position.\n\t */\n\ttop: number;\n\n\t/**\n\t * The `left` value of the element rect that would represent the position.\n\t */\n\tleft: number;\n\n\t/**\n\t * The name of the position. It helps the user of the {@link module:utils/dom/position~getOptimalPosition}\n\t * helper to recognize different positioning function results. It will pass through to the {@link module:utils/dom/position~Position}\n\t * returned by the helper.\n\t */\n\tname?: string;\n\n\t/**\n\t * An optional configuration that will pass-through the {@link module:utils/dom/position~getOptimalPosition} helper\n\t * to the {@link module:utils/dom/position~Position} returned by this helper.\n\t * This configuration may, for instance, let the user of {@link module:utils/dom/position~getOptimalPosition} know that this particular\n\t * position comes with a certain presentation.\n\t */\n\tconfig?: object;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/getpositionedancestor\n */\n\nimport global from './global';\n\n/**\n * For a given element, returns the nearest ancestor element which CSS position is not \"static\".\n *\n * @param element The native DOM element to be checked.\n */\nexport default function getPositionedAncestor( element?: HTMLElement ): HTMLElement | null {\n\tif ( !element || !element.parentNode ) {\n\t\treturn null;\n\t}\n\n\tif ( element.offsetParent === global.document.body ) {\n\t\treturn null;\n\t}\n\n\treturn element.offsetParent as HTMLElement;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/remove\n */\n\n/**\n * Removes given node from parent.\n *\n * @param node Node to remove.\n */\nexport default function remove( node: Node ): void {\n\tconst parent = node.parentNode;\n\n\tif ( parent ) {\n\t\tparent.removeChild( node );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/scroll\n */\n\nimport isRange from './isrange';\nimport Rect from './rect';\nimport isText from './istext';\n\n/**\n * Makes any page `HTMLElement` or `Range` (`target`) visible inside the browser viewport.\n * This helper will scroll all `target` ancestors and the web browser viewport to reveal the target to\n * the user. If the `target` is already visible, nothing will happen.\n *\n * @param options\n * @param options.target A target, which supposed to become visible to the user.\n * @param options.viewportOffset An offset from the edge of the viewport (in pixels)\n * the `target` will be moved by when the viewport is scrolled. It enhances the user experience\n * by keeping the `target` some distance from the edge of the viewport and thus making it easier to\n * read or edit by the user.\n */\nexport function scrollViewportToShowTarget(\n\t{ target, viewportOffset = 0 }: { readonly target: HTMLElement | Range; readonly viewportOffset?: number }\n): void {\n\tconst targetWindow = getWindow( target );\n\tlet currentWindow: Window | null = targetWindow;\n\tlet currentFrame: HTMLElement | null = null;\n\n\t// Iterate over all windows, starting from target's parent window up to window#top.\n\twhile ( currentWindow ) {\n\t\tlet firstAncestorToScroll: HTMLElement;\n\n\t\t// Let's scroll target's ancestors first to reveal it. Then, once the ancestor scrolls\n\t\t// settled down, the algorithm can eventually scroll the viewport of the current window.\n\t\t//\n\t\t// Note: If the current window is target's **original** window (e.g. the first one),\n\t\t// start scrolling the closest parent of the target. If not, scroll the closest parent\n\t\t// of an iframe that resides in the current window.\n\t\tif ( currentWindow == targetWindow ) {\n\t\t\tfirstAncestorToScroll = getParentElement( target );\n\t\t} else {\n\t\t\tfirstAncestorToScroll = getParentElement( currentFrame! );\n\t\t}\n\n\t\t// Scroll the target's ancestors first. Once done, scrolling the viewport is easy.\n\t\tscrollAncestorsToShowRect( firstAncestorToScroll, () => {\n\t\t\t// Note: If the target does not belong to the current window **directly**,\n\t\t\t// i.e. it resides in an iframe belonging to the window, obtain the target's rect\n\t\t\t// in the coordinates of the current window. By default, a Rect returns geometry\n\t\t\t// relative to the current window's viewport. To make it work in a parent window,\n\t\t\t// it must be shifted.\n\t\t\treturn getRectRelativeToWindow( target, currentWindow! );\n\t\t} );\n\n\t\t// Obtain the rect of the target after it has been scrolled within its ancestors.\n\t\t// It's time to scroll the viewport.\n\t\tconst targetRect = getRectRelativeToWindow( target, currentWindow );\n\n\t\tscrollWindowToShowRect( currentWindow, targetRect, viewportOffset );\n\n\t\tif ( currentWindow.parent != currentWindow ) {\n\t\t\t// Keep the reference to the <iframe> element the \"previous current window\" was\n\t\t\t// rendered within. It will be useful to re–calculate the rect of the target\n\t\t\t// in the parent window's relative geometry. The target's rect must be shifted\n\t\t\t// by it's iframe's position.\n\t\t\tcurrentFrame = currentWindow.frameElement as HTMLElement | null;\n\t\t\tcurrentWindow = currentWindow.parent;\n\n\t\t\t// If the current window has some parent but frameElement is inaccessible, then they have\n\t\t\t// different domains/ports and, due to security reasons, accessing and scrolling\n\t\t\t// the parent window won't be possible.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/930.\n\t\t\tif ( !currentFrame ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t} else {\n\t\t\tcurrentWindow = null;\n\t\t}\n\t}\n}\n\n/**\n * Makes any page `HTMLElement` or `Range` (target) visible within its scrollable ancestors,\n * e.g. if they have `overflow: scroll` CSS style.\n *\n * @param target A target, which supposed to become visible to the user.\n */\nexport function scrollAncestorsToShowTarget( target: HTMLElement | Range ): void {\n\tconst targetParent = getParentElement( target );\n\n\tscrollAncestorsToShowRect( targetParent, () => {\n\t\treturn new Rect( target );\n\t} );\n}\n\n/**\n * Makes a given rect visible within its parent window.\n *\n * Note: Avoid the situation where the caret is still in the viewport, but totally\n * at the edge of it. In such situation, if it moved beyond the viewport in the next\n * action e.g. after paste, the scrolling would move it to the viewportOffset level\n * and it all would look like the caret visually moved up/down:\n *\n * 1.\n * ```\n * | foo[]\n * |                                    <--- N px of space below the caret\n * +---------------------------------...\n * ```\n *\n * 2. *paste*\n * 3.\n * ```\n * |\n * |\n * +-foo-----------------------------...\n *   bar[]                              <--- caret below viewport, scrolling...\n * ```\n *\n * 4. *scrolling*\n * 5.\n * ```\n * |\n * | foo\n * | bar[]                              <--- caret precisely at the edge\n * +---------------------------------...\n * ```\n *\n * To prevent this, this method checks the rects moved by the viewportOffset to cover\n * the upper/lower edge of the viewport. It makes sure if the action repeats, there's\n * no twitching – it's a purely visual improvement:\n *\n * 5. (after fix)\n * ```\n * |\n * | foo\n * | bar[]\n * |                                    <--- N px of space below the caret\n * +---------------------------------...\n * ```\n *\n * @param window A window which is scrolled to reveal the rect.\n * @param rect A rect which is to be revealed.\n * @param viewportOffset See scrollViewportToShowTarget.\n */\nfunction scrollWindowToShowRect( window: Window, rect: Rect, viewportOffset: number ): void {\n\tconst targetShiftedDownRect = rect.clone().moveBy( 0, viewportOffset );\n\tconst targetShiftedUpRect = rect.clone().moveBy( 0, -viewportOffset );\n\tconst viewportRect = new Rect( window ).excludeScrollbarsAndBorders();\n\n\tconst rects = [ targetShiftedUpRect, targetShiftedDownRect ];\n\n\tif ( !rects.every( rect => viewportRect.contains( rect ) ) ) {\n\t\tlet { scrollX, scrollY } = window;\n\n\t\tif ( isAbove( targetShiftedUpRect, viewportRect ) ) {\n\t\t\tscrollY -= viewportRect.top - rect.top + viewportOffset;\n\t\t} else if ( isBelow( targetShiftedDownRect, viewportRect ) ) {\n\t\t\tscrollY += rect.bottom - viewportRect.bottom + viewportOffset;\n\t\t}\n\n\t\t// TODO: Web browsers scroll natively to place the target in the middle\n\t\t// of the viewport. It's not a very popular case, though.\n\t\tif ( isLeftOf( rect, viewportRect ) ) {\n\t\t\tscrollX -= viewportRect.left - rect.left + viewportOffset;\n\t\t} else if ( isRightOf( rect, viewportRect ) ) {\n\t\t\tscrollX += rect.right - viewportRect.right + viewportOffset;\n\t\t}\n\n\t\twindow.scrollTo( scrollX, scrollY );\n\t}\n}\n\n/**\n * Recursively scrolls element ancestors to visually reveal a rect.\n *\n * @param parent A parent The first ancestors to start scrolling.\n * @param getRect A function which returns the Rect, which is to be revealed.\n */\nfunction scrollAncestorsToShowRect( parent: HTMLElement, getRect: () => Rect ): void {\n\tconst parentWindow = getWindow( parent );\n\tlet parentRect: Rect, targetRect: Rect;\n\n\twhile ( parent != parentWindow.document.body ) {\n\t\ttargetRect = getRect();\n\t\tparentRect = new Rect( parent ).excludeScrollbarsAndBorders();\n\n\t\tif ( !parentRect.contains( targetRect ) ) {\n\t\t\tif ( isAbove( targetRect, parentRect ) ) {\n\t\t\t\tparent.scrollTop -= parentRect.top - targetRect.top;\n\t\t\t} else if ( isBelow( targetRect, parentRect ) ) {\n\t\t\t\tparent.scrollTop += targetRect.bottom - parentRect.bottom;\n\t\t\t}\n\n\t\t\tif ( isLeftOf( targetRect, parentRect ) ) {\n\t\t\t\tparent.scrollLeft -= parentRect.left - targetRect.left;\n\t\t\t} else if ( isRightOf( targetRect, parentRect ) ) {\n\t\t\t\tparent.scrollLeft += targetRect.right - parentRect.right;\n\t\t\t}\n\t\t}\n\n\t\tparent = parent.parentNode as HTMLElement;\n\t}\n}\n\n/**\n * Determines if a given `Rect` extends beyond the bottom edge of the second `Rect`.\n */\nfunction isBelow( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.bottom > secondRect.bottom;\n}\n\n/**\n * Determines if a given `Rect` extends beyond the top edge of the second `Rect`.\n */\nfunction isAbove( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.top < secondRect.top;\n}\n\n/**\n * Determines if a given `Rect` extends beyond the left edge of the second `Rect`.\n */\nfunction isLeftOf( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.left < secondRect.left;\n}\n\n/**\n * Determines if a given `Rect` extends beyond the right edge of the second `Rect`.\n */\nfunction isRightOf( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.right > secondRect.right;\n}\n\n/**\n * Returns the closest window of an element or range.\n */\nfunction getWindow( elementOrRange: HTMLElement | Range ): Window {\n\tif ( isRange( elementOrRange ) ) {\n\t\treturn elementOrRange.startContainer.ownerDocument!.defaultView!;\n\t} else {\n\t\treturn elementOrRange.ownerDocument.defaultView!;\n\t}\n}\n\n/**\n * Returns the closest parent of an element or DOM range.\n */\nfunction getParentElement( elementOrRange: HTMLElement | Range ): HTMLElement {\n\tif ( isRange( elementOrRange ) ) {\n\t\tlet parent = elementOrRange.commonAncestorContainer as HTMLElement;\n\n\t\t// If a Range is attached to the Text, use the closest element ancestor.\n\t\tif ( isText( parent ) ) {\n\t\t\tparent = parent.parentNode as HTMLElement;\n\t\t}\n\n\t\treturn parent;\n\t} else {\n\t\treturn elementOrRange.parentNode as HTMLElement;\n\t}\n}\n\n/**\n * Returns the rect of an element or range residing in an iframe.\n * The result rect is relative to the geometry of the passed window instance.\n *\n * @param target Element or range which rect should be returned.\n * @param relativeWindow A window the rect should be relative to.\n */\nfunction getRectRelativeToWindow( target: HTMLElement | Range, relativeWindow: Window ): Rect {\n\tconst targetWindow = getWindow( target );\n\tconst rect = new Rect( target );\n\n\tif ( targetWindow === relativeWindow ) {\n\t\treturn rect;\n\t} else {\n\t\tlet currentWindow = targetWindow;\n\n\t\twhile ( currentWindow != relativeWindow ) {\n\t\t\tconst frame = currentWindow.frameElement as HTMLElement;\n\t\t\tconst frameRect = new Rect( frame ).excludeScrollbarsAndBorders();\n\n\t\t\trect.moveBy( frameRect.left, frameRect.top );\n\n\t\t\tcurrentWindow = currentWindow.parent;\n\t\t}\n\t}\n\n\treturn rect;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A set of utilities related to keyboard support.\n *\n * @module utils/keyboard\n */\n\nimport type { LanguageDirection } from './language';\nimport CKEditorError from './ckeditorerror';\nimport env from './env';\n\nconst modifiersToGlyphsMac = {\n\tctrl: '⌃',\n\tcmd: '⌘',\n\talt: '⌥',\n\tshift: '⇧'\n} as const;\n\nconst modifiersToGlyphsNonMac = {\n\tctrl: 'Ctrl+',\n\talt: 'Alt+',\n\tshift: 'Shift+'\n} as const;\n\n/**\n * An object with `keyName => keyCode` pairs for a set of known keys.\n *\n * Contains:\n *\n * * `a-z`,\n * * `0-9`,\n * * `f1-f12`,\n * * `` ` ``, `-`, `=`, `[`, `]`, `;`, `'`, `,`, `.`, `/`, `\\`,\n * * `arrow(left|up|right|bottom)`,\n * * `backspace`, `delete`, `enter`, `esc`, `tab`,\n * * `ctrl`, `cmd`, `shift`, `alt`.\n */\nexport const keyCodes = generateKnownKeyCodes();\n\nconst keyCodeNames = Object.fromEntries(\n\tObject.entries( keyCodes ).map( ( [ name, code ] ) => [ code, name.charAt( 0 ).toUpperCase() + name.slice( 1 ) ] )\n);\n\n/**\n * Converts a key name or {@link module:utils/keyboard~KeystrokeInfo keystroke info} into a key code.\n *\n * Note: Key names are matched with {@link module:utils/keyboard~keyCodes} in a case-insensitive way.\n *\n * @param key A key name (see {@link module:utils/keyboard~keyCodes}) or a keystroke data object.\n * @returns Key or keystroke code.\n */\nexport function getCode( key: string | Readonly<KeystrokeInfo> ): number {\n\tlet keyCode: number | undefined;\n\n\tif ( typeof key == 'string' ) {\n\t\tkeyCode = keyCodes[ key.toLowerCase() ];\n\n\t\tif ( !keyCode ) {\n\t\t\t/**\n\t\t\t * Unknown key name. Only key names included in the {@link module:utils/keyboard~keyCodes} can be used.\n\t\t\t *\n\t\t\t * @error keyboard-unknown-key\n\t\t\t * @param {String} key\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'keyboard-unknown-key', null, { key } );\n\t\t}\n\t} else {\n\t\tkeyCode = key.keyCode +\n\t\t\t( key.altKey ? keyCodes.alt : 0 ) +\n\t\t\t( key.ctrlKey ? keyCodes.ctrl : 0 ) +\n\t\t\t( key.shiftKey ? keyCodes.shift : 0 ) +\n\t\t\t( key.metaKey ? keyCodes.cmd : 0 );\n\t}\n\n\treturn keyCode;\n}\n\n/**\n * Parses the keystroke and returns a keystroke code that will match the code returned by\n * {@link module:utils/keyboard~getCode} for the corresponding {@link module:utils/keyboard~KeystrokeInfo keystroke info}.\n *\n * The keystroke can be passed in two formats:\n *\n * * as a single string – e.g. `ctrl + A`,\n * * as an array of {@link module:utils/keyboard~keyCodes known key names} and key codes – e.g.:\n *   * `[ 'ctrl', 32 ]` (ctrl + space),\n *   * `[ 'ctrl', 'a' ]` (ctrl + A).\n *\n * Note: Key names are matched with {@link module:utils/keyboard~keyCodes} in a case-insensitive way.\n *\n * Note: Only keystrokes with a single non-modifier key are supported (e.g. `ctrl+A` is OK, but `ctrl+A+B` is not).\n *\n * Note: On macOS, keystroke handling is translating the `Ctrl` key to the `Cmd` key and handling only that keystroke.\n * For example, a registered keystroke `Ctrl+A` will be translated to `Cmd+A` on macOS. To disable the translation of some keystroke,\n * use the forced modifier: `Ctrl!+A` (note the exclamation mark).\n *\n * @param keystroke The keystroke definition.\n * @returns Keystroke code.\n */\nexport function parseKeystroke( keystroke: string | ReadonlyArray<number | string> ): number {\n\tif ( typeof keystroke == 'string' ) {\n\t\tkeystroke = splitKeystrokeText( keystroke );\n\t}\n\n\treturn keystroke\n\t\t.map( key => ( typeof key == 'string' ) ? getEnvKeyCode( key ) : key )\n\t\t.reduce( ( key, sum ) => sum + key, 0 );\n}\n\n/**\n * Translates any keystroke string text like `\"Ctrl+A\"` to an\n * environment–specific keystroke, i.e. `\"⌘A\"` on macOS.\n *\n * @param keystroke The keystroke text.\n * @returns The keystroke text specific for the environment.\n */\nexport function getEnvKeystrokeText( keystroke: string ): string {\n\tlet keystrokeCode = parseKeystroke( keystroke );\n\n\tconst modifiersToGlyphs = Object.entries( env.isMac ? modifiersToGlyphsMac : modifiersToGlyphsNonMac );\n\n\tconst modifiers = modifiersToGlyphs.reduce( ( modifiers, [ name, glyph ] ) => {\n\t\t// Modifier keys are stored as a bit mask so extract those from the keystroke code.\n\t\tif ( ( keystrokeCode & keyCodes[ name ] ) != 0 ) {\n\t\t\tkeystrokeCode &= ~keyCodes[ name ];\n\t\t\tmodifiers += glyph;\n\t\t}\n\n\t\treturn modifiers;\n\t}, '' );\n\n\treturn modifiers + ( keystrokeCode ? keyCodeNames[ keystrokeCode ] : '' );\n}\n\n/**\n * Returns `true` if the provided key code represents one of the arrow keys.\n *\n * @param keyCode A key code as in {@link module:utils/keyboard~KeystrokeInfo#keyCode}.\n */\nexport function isArrowKeyCode( keyCode: number ): boolean {\n\treturn keyCode == keyCodes.arrowright ||\n\t\tkeyCode == keyCodes.arrowleft ||\n\t\tkeyCode == keyCodes.arrowup ||\n\t\tkeyCode == keyCodes.arrowdown;\n}\n\n/**\n * String representing a direction of an arrow key kode.\n */\nexport type ArrowKeyCodeDirection = 'left' | 'up' | 'right' | 'down';\n\n/**\n * Returns the direction in which the {@link module:engine/model/documentselection~DocumentSelection selection}\n * will move when the provided arrow key code is pressed considering the language direction of the editor content.\n *\n * For instance, in right–to–left (RTL) content languages, pressing the left arrow means moving the selection right (forward)\n * in the model structure. Similarly, pressing the right arrow moves the selection left (backward).\n *\n * @param keyCode A key code as in {@link module:utils/keyboard~KeystrokeInfo#keyCode}.\n * @param contentLanguageDirection The content language direction, corresponding to\n * {@link module:utils/locale~Locale#contentLanguageDirection}.\n * @returns Localized arrow direction or `undefined` for non-arrow key codes.\n */\nexport function getLocalizedArrowKeyCodeDirection(\n\tkeyCode: number,\n\tcontentLanguageDirection: LanguageDirection\n): ArrowKeyCodeDirection | undefined {\n\tconst isLtrContent = contentLanguageDirection === 'ltr';\n\n\tswitch ( keyCode ) {\n\t\tcase keyCodes.arrowleft:\n\t\t\treturn isLtrContent ? 'left' : 'right';\n\n\t\tcase keyCodes.arrowright:\n\t\t\treturn isLtrContent ? 'right' : 'left';\n\n\t\tcase keyCodes.arrowup:\n\t\t\treturn 'up';\n\n\t\tcase keyCodes.arrowdown:\n\t\t\treturn 'down';\n\t}\n}\n\n/**\n * Converts a key name to the key code with mapping based on the env.\n *\n * See: {@link module:utils/keyboard~getCode}.\n *\n * @param key The key name (see {@link module:utils/keyboard~keyCodes}).\n * @returns Key code.\n */\nfunction getEnvKeyCode( key: string ): number {\n\t// Don't remap modifier key for forced modifiers.\n\tif ( key.endsWith( '!' ) ) {\n\t\treturn getCode( key.slice( 0, -1 ) );\n\t}\n\n\tconst code = getCode( key );\n\n\treturn env.isMac && code == keyCodes.ctrl ? keyCodes.cmd : code;\n}\n\n/**\n * Determines if the provided key code moves the {@link module:engine/model/documentselection~DocumentSelection selection}\n * forward or backward considering the language direction of the editor content.\n *\n * For instance, in right–to–left (RTL) languages, pressing the left arrow means moving forward\n * in the model structure. Similarly, pressing the right arrow moves the selection backward.\n *\n * @param keyCode A key code as in {@link module:utils/keyboard~KeystrokeInfo#keyCode}.\n * @param contentLanguageDirection The content language direction, corresponding to\n * {@link module:utils/locale~Locale#contentLanguageDirection}.\n */\nexport function isForwardArrowKeyCode(\n\tkeyCode: number,\n\tcontentLanguageDirection: LanguageDirection\n): boolean {\n\tconst localizedKeyCodeDirection = getLocalizedArrowKeyCodeDirection( keyCode, contentLanguageDirection );\n\n\treturn localizedKeyCodeDirection === 'down' || localizedKeyCodeDirection === 'right';\n}\n\nfunction generateKnownKeyCodes(): { readonly [ keyCode: string ]: number } {\n\tconst keyCodes: { [keyCode: string]: number } = {\n\t\tarrowleft: 37,\n\t\tarrowup: 38,\n\t\tarrowright: 39,\n\t\tarrowdown: 40,\n\t\tbackspace: 8,\n\t\tdelete: 46,\n\t\tenter: 13,\n\t\tspace: 32,\n\t\tesc: 27,\n\t\ttab: 9,\n\n\t\t// The idea about these numbers is that they do not collide with any real key codes, so we can use them\n\t\t// like bit masks.\n\t\tctrl: 0x110000,\n\t\tshift: 0x220000,\n\t\talt: 0x440000,\n\t\tcmd: 0x880000\n\t};\n\n\t// a-z\n\tfor ( let code = 65; code <= 90; code++ ) {\n\t\tconst letter = String.fromCharCode( code );\n\n\t\tkeyCodes[ letter.toLowerCase() ] = code;\n\t}\n\n\t// 0-9\n\tfor ( let code = 48; code <= 57; code++ ) {\n\t\tkeyCodes[ code - 48 ] = code;\n\t}\n\n\t// F1-F12\n\tfor ( let code = 112; code <= 123; code++ ) {\n\t\tkeyCodes[ 'f' + ( code - 111 ) ] = code;\n\t}\n\n\t// other characters\n\tfor ( const char of '`-=[];\\',./\\\\' ) {\n\t\tkeyCodes[ char ] = char.charCodeAt( 0 );\n\t}\n\n\treturn keyCodes;\n}\n\nfunction splitKeystrokeText( keystroke: string ): Array<string> {\n\treturn keystroke.split( '+' ).map( key => key.trim() );\n}\n\n/**\n * Information about the keystroke.\n */\nexport interface KeystrokeInfo {\n\n\t/**\n\t * The [key code](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/keyCode).\n\t */\n\tkeyCode: number;\n\n\t/**\n\t * Whether the <kbd>Alt</kbd> modifier was pressed.\n\t */\n\taltKey: boolean;\n\n\t/**\n\t * Whether the <kbd>Cmd</kbd> modifier was pressed.\n\t */\n\tmetaKey: boolean;\n\n\t/**\n\t * Whether the <kbd>Ctrl</kbd> modifier was pressed.\n\t */\n\tctrlKey: boolean;\n\n\t/**\n\t * Whether the <kbd>Shift</kbd> modifier was pressed.\n\t */\n\tshiftKey: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/toarray\n */\n\n/**\n * Transforms any value to an array. If the provided value is already an array, it is returned unchanged.\n *\n * @param data The value to transform to an array.\n * @returns An array created from data.\n */\nexport default function toArray<T>( data: ArrayOrItem<T> ): Array<T>;\n\n/**\n * Transforms any value to an array. If the provided value is already an array, it is returned unchanged.\n *\n * @param data The value to transform to an array.\n * @returns An array created from data.\n */\nexport default function toArray<T>( data: ReadonlyArrayOrItem<T> ): ReadonlyArray<T>;\n\nexport default function toArray<T>( data: ArrayOrItem<T> ): Array<T> {\n\treturn Array.isArray( data ) ? data : [ data ];\n}\n\nexport type ArrayOrItem<T> = T | Array<T>;\nexport type ReadonlyArrayOrItem<T> = T | ReadonlyArray<T>;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable no-var */\n\n/**\n * @module utils/translation-service\n */\n\nimport CKEditorError from './ckeditorerror';\nimport global from './dom/global';\n\ndeclare global {\n\tvar CKEDITOR_TRANSLATIONS: {\n\t\t[ language: string ]: {\n\t\t\tdictionary: { [ messageId: string ]: string | ReadonlyArray<string> };\n\t\t\tgetPluralForm?: ( n: number ) => number;\n\t\t};\n\t};\n}\n\n/* istanbul ignore else */\nif ( !global.window.CKEDITOR_TRANSLATIONS ) {\n\tglobal.window.CKEDITOR_TRANSLATIONS = {};\n}\n\n/**\n * Adds translations to existing ones or overrides the existing translations. These translations will later\n * be available for the {@link module:utils/locale~Locale#t `t()`} function.\n *\n * The `translations` is an object which consists of `messageId: translation` pairs. Note that the message ID can be\n * either constructed from the message string or from the message ID if it was passed\n * (this happens rarely and mostly for short messages or messages with placeholders).\n * Since the editor displays only the message string, the message ID can be found either in the source code or in the\n * built translations for another language.\n *\n * ```ts\n * add( 'pl', {\n * \t'Cancel': 'Anuluj',\n * \t'IMAGE': 'obraz', // Note that the `IMAGE` comes from the message ID, while the string can be `image`.\n * } );\n * ```\n *\n * If the message is supposed to support various plural forms, make sure to provide an array with the singular form and all plural forms:\n *\n * ```ts\n * add( 'pl', {\n * \t'Add space': [ 'Dodaj spację', 'Dodaj %0 spacje', 'Dodaj %0 spacji' ]\n * } );\n * ```\n *\n * You should also specify the third argument (the `getPluralForm()` function) that will be used to determine the plural form if no\n * language file was loaded for that language. All language files coming from CKEditor 5 sources will have this option set, so\n * these plural form rules will be reused by other translations added to the registered languages. The `getPluralForm()` function\n * can return either a Boolean or a number.\n *\n * ```ts\n * add( 'en', {\n * \t// ... Translations.\n * }, n => n !== 1 );\n * add( 'pl', {\n * \t// ... Translations.\n * }, n => n == 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && ( n % 100 < 10 || n % 100 >= 20 ) ? 1 : 2 );\n * ```\n *\n * All translations extend the global `window.CKEDITOR_TRANSLATIONS` object. An example of this object can be found below:\n *\n * ```ts\n * {\n * \tpl: {\n * \t\tdictionary: {\n * \t\t\t'Cancel': 'Anuluj',\n * \t\t\t'Add space': [ 'Dodaj spację', 'Dodaj %0 spacje', 'Dodaj %0 spacji' ]\n * \t\t},\n * \t\t// A function that returns the plural form index.\n * \t\tgetPluralForm: n => n == 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && ( n % 100 < 10 || n % 100 >= 20 ) ? 1 : 2 );\n * \t}\n * \t// Other languages.\n * \t}\n * ```\n *\n * If you cannot import this function from this module (e.g. because you use a CKEditor 5 build), you can\n * still add translations by extending the global `window.CKEDITOR_TRANSLATIONS` object by using a function like\n * the one below:\n *\n * ```ts\n * function addTranslations( language, translations, getPluralForm ) {\n * \tif ( !global.window.CKEDITOR_TRANSLATIONS ) {\n * \t\tglobal.window.CKEDITOR_TRANSLATIONS = {};\n * \t}\n\n * \tif ( !global.window.CKEDITOR_TRANSLATIONS[ language ] ) {\n * \t\tglobal.window.CKEDITOR_TRANSLATIONS[ language ] = {};\n * \t}\n *\n * \tconst languageTranslations = global.window.CKEDITOR_TRANSLATIONS[ language ];\n *\n * \tlanguageTranslations.dictionary = languageTranslations.dictionary || {};\n * \tlanguageTranslations.getPluralForm = getPluralForm || languageTranslations.getPluralForm;\n *\n * \t// Extend the dictionary for the given language.\n * \tObject.assign( languageTranslations.dictionary, translations );\n * }\n * ```\n *\n * @param language Target language.\n * @param translations An object with translations which will be added to the dictionary.\n * For each message ID the value should be either a translation or an array of translations if the message\n * should support plural forms.\n * @param getPluralForm A function that returns the plural form index (a number).\n */\nexport function add(\n\tlanguage: string,\n\ttranslations: { readonly [ messageId: string ]: string | ReadonlyArray<string> },\n\tgetPluralForm?: ( n: number ) => number\n): void {\n\tif ( !global.window.CKEDITOR_TRANSLATIONS[ language ] ) {\n\t\tglobal.window.CKEDITOR_TRANSLATIONS[ language ] = {} as any;\n\t}\n\n\tconst languageTranslations = global.window.CKEDITOR_TRANSLATIONS[ language ];\n\n\tlanguageTranslations.dictionary = languageTranslations.dictionary || {};\n\tlanguageTranslations.getPluralForm = getPluralForm || languageTranslations.getPluralForm;\n\n\tObject.assign( languageTranslations.dictionary, translations );\n}\n\n/**\n * **Note:** This method is internal, use {@link module:utils/locale~Locale#t the `t()` function} instead to translate\n * the editor UI parts.\n *\n * This function is responsible for translating messages to the specified language. It uses translations added perviously\n * by {@link module:utils/translation-service~add} (a translations dictionary and the `getPluralForm()` function\n * to provide accurate translations of plural forms).\n *\n * When no translation is defined in the dictionary or the dictionary does not exist, this function returns\n * the original message string or the message plural depending on the number of elements.\n *\n * ```ts\n * translate( 'pl', { string: 'Cancel' } ); // 'Cancel'\n * ```\n *\n * The third optional argument is the number of elements, based on which the single form or one of the plural forms\n * should be picked when the message is supposed to support various plural forms.\n *\n * ```ts\n * translate( 'en', { string: 'Add a space', plural: 'Add %0 spaces' }, 1 ); // 'Add a space'\n * translate( 'en', { string: 'Add a space', plural: 'Add %0 spaces' }, 3 ); // 'Add %0 spaces'\n * ```\n *\n * The message should provide an ID using the `id` property when the message strings are not unique and their\n * translations should be different.\n *\n * ```ts\n * translate( 'en', { string: 'image', id: 'ADD_IMAGE' } );\n * translate( 'en', { string: 'image', id: 'AN_IMAGE' } );\n * ```\n *\n * @internal\n * @param language Target language.\n * @param message A message that will be translated.\n * @param quantity The number of elements for which a plural form should be picked from the target language dictionary.\n * @returns Translated sentence.\n */\nexport function _translate( language: string, message: Message, quantity: number = 1 ): string {\n\tif ( typeof quantity !== 'number' ) {\n\t\t/**\n\t\t * An incorrect value was passed to the translation function. This was probably caused\n\t\t * by an incorrect message interpolation of a plural form. Note that for messages supporting plural forms\n\t\t * the second argument of the `t()` function should always be a number or an array with a number as the first element.\n\t\t *\n\t\t * @error translation-service-quantity-not-a-number\n\t\t */\n\t\tthrow new CKEditorError( 'translation-service-quantity-not-a-number', null, { quantity } );\n\t}\n\n\tconst numberOfLanguages = getNumberOfLanguages();\n\n\tif ( numberOfLanguages === 1 ) {\n\t\t// Override the language to the only supported one.\n\t\t// This can't be done in the `Locale` class, because the translations comes after the `Locale` class initialization.\n\t\tlanguage = Object.keys( global.window.CKEDITOR_TRANSLATIONS )[ 0 ];\n\t}\n\n\tconst messageId = message.id || message.string;\n\n\tif ( numberOfLanguages === 0 || !hasTranslation( language, messageId ) ) {\n\t\tif ( quantity !== 1 ) {\n\t\t\t// Return the default plural form that was passed in the `message.plural` parameter.\n\t\t\treturn message.plural!;\n\t\t}\n\n\t\treturn message.string;\n\t}\n\n\tconst dictionary = global.window.CKEDITOR_TRANSLATIONS[ language ].dictionary;\n\tconst getPluralForm = global.window.CKEDITOR_TRANSLATIONS[ language ].getPluralForm || ( n => n === 1 ? 0 : 1 );\n\tconst translation = dictionary[ messageId ];\n\n\tif ( typeof translation === 'string' ) {\n\t\treturn translation;\n\t}\n\n\tconst pluralFormIndex = Number( getPluralForm( quantity ) );\n\n\t// Note: The `translate` function is not responsible for replacing `%0, %1, ...` with values.\n\treturn translation[ pluralFormIndex ];\n}\n\n/**\n * Clears dictionaries for test purposes.\n *\n * @internal\n */\nexport function _clear(): void {\n\tglobal.window.CKEDITOR_TRANSLATIONS = {};\n}\n\n/**\n * Checks whether the dictionary exists and translation in that dictionary exists.\n */\nfunction hasTranslation( language: string, messageId: string ): boolean {\n\treturn (\n\t\t!!global.window.CKEDITOR_TRANSLATIONS[ language ] &&\n\t\t!!global.window.CKEDITOR_TRANSLATIONS[ language ].dictionary[ messageId ]\n\t);\n}\n\nfunction getNumberOfLanguages(): number {\n\treturn Object.keys( global.window.CKEDITOR_TRANSLATIONS ).length;\n}\n\n/**\n * The internationalization message interface. A message that implements this interface can be passed to the `t()` function\n * to be translated to the target UI language.\n */\nexport interface Message {\n\n\t/**\n\t * The message string to translate. Acts as a default translation if the translation for a given language\n\t * is not defined. When the message is supposed to support plural forms, the string should be the English singular form of the message.\n\t */\n\treadonly string: string;\n\n\t/**\n\t * The message ID. If passed, the message ID is taken from this property instead of the `message.string`.\n\t * This property is useful when various messages share the same message string, for example, the `editor` string in `in the editor`\n\t * and `my editor` sentences.\n\t */\n\treadonly id?: string;\n\n\t/**\n\t * The plural form of the message. This property should be skipped when a message is not supposed\n\t * to support plural forms. Otherwise it should always be set to a string with the English plural form of the message.\n\t */\n\treadonly plural?: string;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/language\n */\n\n/**\n * String representing a language direction.\n */\nexport type LanguageDirection = 'ltr' | 'rtl';\n\nconst RTL_LANGUAGE_CODES = [\n\t'ar', 'ara', // Arabic\n\t'fa', 'per', 'fas', // Persian\n\t'he', 'heb', // Hebrew\n\t'ku', 'kur', // Kurdish\n\t'ug', 'uig' // Uighur, Uyghur\n];\n\n/**\n * Helps determine whether a language text direction is LTR or RTL.\n *\n * @param languageCode The ISO 639-1 or ISO 639-2 language code.\n */\nexport function getLanguageDirection( languageCode: string ): LanguageDirection {\n\treturn RTL_LANGUAGE_CODES.includes( languageCode ) ? 'rtl' : 'ltr';\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/locale\n */\n\n/* globals console */\n\nimport toArray from './toarray';\nimport { _translate, type Message } from './translation-service';\nimport { getLanguageDirection, type LanguageDirection } from './language';\n\n/**\n * Represents the localization services.\n */\nexport default class Locale {\n\t/**\n\t * The editor UI language code in the [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format.\n\t *\n\t * If the {@link #contentLanguage content language} was not specified in the `Locale` constructor,\n\t * it also defines the language of the content.\n\t */\n\tpublic readonly uiLanguage: string;\n\n\t/**\n\t * Text direction of the {@link #uiLanguage editor UI language}. Either `'ltr'` or `'rtl'`.\n\t */\n\tpublic readonly uiLanguageDirection: LanguageDirection;\n\n\t/**\n\t * The editor content language code in the [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format.\n\t *\n\t * Usually the same as the {@link #uiLanguage editor language}, it can be customized by passing an optional\n\t * argument to the `Locale` constructor.\n\t */\n\tpublic readonly contentLanguage: string;\n\n\t/**\n\t * Text direction of the {@link #contentLanguage editor content language}.\n\t *\n\t * If the content language was passed directly to the `Locale` constructor, this property represents the\n\t * direction of that language.\n\t *\n\t * If the {@link #contentLanguage editor content language} was derived from the {@link #uiLanguage editor language},\n\t * the content language direction is the same as the {@link #uiLanguageDirection UI language direction}.\n\t *\n\t * The value is either `'ltr'` or `'rtl'`.\n\t */\n\tpublic readonly contentLanguageDirection: LanguageDirection;\n\n\t/**\n\t * Translates the given message to the {@link #uiLanguage}. This method is also available in\n\t * {@link module:core/editor/editor~Editor#t `Editor`} and {@link module:ui/view~View#t `View`}.\n\t *\n\t * This method's context is statically bound to the `Locale` instance and **should always be called as a function**:\n\t *\n\t * ```ts\n\t * const t = locale.t;\n\t * t( 'Label' );\n\t * ```\n\t *\n\t * The message can be either a string or an object implementing the {@link module:utils/translation-service~Message} interface.\n\t *\n\t * The message may contain placeholders (`%<index>`) for value(s) that are passed as a `values` parameter.\n\t * For an array of values, the `%<index>` will be changed to an element of that array at the given index.\n\t * For a single value passed as the second argument, only the `%0` placeholders will be changed to the provided value.\n\t *\n\t * ```ts\n\t * t( 'Created file \"%0\" in %1ms.', [ fileName, timeTaken ] );\n\t * t( 'Created file \"%0\", fileName );\n\t * ```\n\t *\n\t * The message supports plural forms. To specify the plural form, use the `plural` property. Singular or plural form\n\t * will be chosen depending on the first value from the passed `values`. The value of the `plural` property is used\n\t * as a default plural translation when the translation for the target language is missing.\n\t *\n\t * ```ts\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 1 ); // 'Add a space' for the English language.\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 5 ); // 'Add 5 spaces' for the English language.\n\t * t( { string: '%1 a space', plural: '%1 %0 spaces' }, [ 2, 'Add' ] ); // 'Add 2 spaces' for the English language.\n\t *\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 1 ); // 'Dodaj spację' for the Polish language.\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 5 ); // 'Dodaj 5 spacji' for the Polish language.\n\t * t( { string: '%1 a space', plural: '%1 %0 spaces' }, [ 2, 'Add' ] ); // 'Dodaj 2 spacje' for the Polish language.\n\t * ```\n\t *\n\t *  * The message should provide an ID using the `id` property when the message strings are not unique and their\n\t * translations should be different.\n\t *\n\t * ```ts\n\t * translate( 'en', { string: 'image', id: 'ADD_IMAGE' } );\n\t * translate( 'en', { string: 'image', id: 'AN_IMAGE' } );\n\t * ```\n\t */\n\tpublic readonly t: LocaleTranslate;\n\n\t/**\n\t * Creates a new instance of the locale class. Learn more about\n\t * {@glink features/ui-language configuring the language of the editor}.\n\t *\n\t * @param options Locale configuration.\n\t * @param options.uiLanguage The editor UI language code in the\n\t * [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format. See {@link #uiLanguage}.\n\t * @param options.contentLanguage The editor content language code in the\n\t * [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format. If not specified, the same as `options.language`.\n\t * See {@link #contentLanguage}.\n\t */\n\tconstructor( { uiLanguage = 'en', contentLanguage }: { readonly uiLanguage?: string; readonly contentLanguage?: string } = {} ) {\n\t\tthis.uiLanguage = uiLanguage;\n\t\tthis.contentLanguage = contentLanguage || this.uiLanguage;\n\t\tthis.uiLanguageDirection = getLanguageDirection( this.uiLanguage );\n\t\tthis.contentLanguageDirection = getLanguageDirection( this.contentLanguage );\n\n\t\tthis.t = ( message, values ) => this._t( message, values );\n\t}\n\n\t/**\n\t * The editor UI language code in the [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format.\n\t *\n\t * **Note**: This property was deprecated. Please use {@link #uiLanguage} and {@link #contentLanguage}\n\t * properties instead.\n\t *\n\t * @deprecated\n\t */\n\tpublic get language(): string {\n\t\t/**\n\t\t * The {@link module:utils/locale~Locale#language `Locale#language`} property was deprecated and will\n\t\t * be removed in the near future. Please use the {@link module:utils/locale~Locale#uiLanguage `Locale#uiLanguage`} and\n\t\t * {@link module:utils/locale~Locale#contentLanguage `Locale#contentLanguage`} properties instead.\n\t\t *\n\t\t * @error locale-deprecated-language-property\n\t\t */\n\t\tconsole.warn(\n\t\t\t'locale-deprecated-language-property: ' +\n\t\t\t'The Locale#language property has been deprecated and will be removed in the near future. ' +\n\t\t\t'Please use #uiLanguage and #contentLanguage properties instead.' );\n\n\t\treturn this.uiLanguage;\n\t}\n\n\t/**\n\t * An unbound version of the {@link #t} method.\n\t */\n\tprivate _t( message: string | Message, values: number | string | ReadonlyArray<number | string> = [] ): string {\n\t\tvalues = toArray( values );\n\n\t\tif ( typeof message === 'string' ) {\n\t\t\tmessage = { string: message };\n\t\t}\n\n\t\tconst hasPluralForm = !!message.plural;\n\t\tconst quantity = hasPluralForm ? values[ 0 ] as number : 1;\n\n\t\tconst translatedString = _translate( this.uiLanguage, message, quantity );\n\n\t\treturn interpolateString( translatedString, values );\n\t}\n}\n\n/**\n * @param message A message that will be localized (translated).\n * @param values A value or an array of values that will fill message placeholders.\n * For messages supporting plural forms the first value will determine the plural form.\n */\nexport type LocaleTranslate = ( message: string | Message, values?: number | string | ReadonlyArray<number | string> ) => string;\n\n/**\n * Fills the `%0, %1, ...` string placeholders with values.\n */\nfunction interpolateString( string: string, values: ReadonlyArray<any> ): string {\n\treturn string.replace( /%(\\d+)/g, ( match, index ) => {\n\t\treturn ( index < values.length ) ? values[ index ] : match;\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/collection\n */\n\nimport EmitterMixin from './emittermixin';\nimport CKEditorError from './ckeditorerror';\nimport uid from './uid';\nimport isIterable from './isiterable';\n\n/**\n * Collections are ordered sets of objects. Items in the collection can be retrieved by their indexes\n * in the collection (like in an array) or by their ids.\n *\n * If an object without an `id` property is being added to the collection, the `id` property will be generated\n * automatically. Note that the automatically generated id is unique only within this single collection instance.\n *\n * By default an item in the collection is identified by its `id` property. The name of the identifier can be\n * configured through the constructor of the collection.\n *\n * @typeParam T The type of the collection element.\n */\nexport default class Collection<T extends Record<string, any>> extends EmitterMixin() implements Iterable<T> {\n\t/**\n\t * The internal list of items in the collection.\n\t */\n\tprivate readonly _items: Array<T>;\n\n\t/**\n\t * The internal map of items in the collection.\n\t */\n\tprivate readonly _itemMap: Map<string, T>;\n\n\t/**\n\t * The name of the property which is considered to identify an item.\n\t */\n\tprivate readonly _idProperty: string;\n\n\t/**\n\t * A collection instance this collection is bound to as a result\n\t * of calling {@link #bindTo} method.\n\t */\n\tprivate _bindToCollection?: Collection<any> | null;\n\n\t/**\n\t * A helper mapping external items of a bound collection ({@link #bindTo})\n\t * and actual items of this collection. It provides information\n\t * necessary to properly remove items bound to another collection.\n\t *\n\t * See {@link #_bindToInternalToExternalMap}.\n\t */\n\tprivate readonly _bindToExternalToInternalMap: WeakMap<any, T>;\n\n\t/**\n\t * A helper mapping items of this collection to external items of a bound collection\n\t * ({@link #bindTo}). It provides information necessary to manage the bindings, e.g.\n\t * to avoid loops in two–way bindings.\n\t *\n\t * See {@link #_bindToExternalToInternalMap}.\n\t */\n\tprivate readonly _bindToInternalToExternalMap: WeakMap<T, any>;\n\n\t/**\n\t * Stores indexes of skipped items from bound external collection.\n\t */\n\tprivate _skippedIndexesFromExternal: Array<number>;\n\n\t/**\n\t * Creates a new Collection instance.\n\t *\n\t * You can pass a configuration object as the argument of the constructor:\n\t *\n\t * ```ts\n\t * const emptyCollection = new Collection<{ name: string }>( { idProperty: 'name' } );\n\t * emptyCollection.add( { name: 'John' } );\n\t * console.log( collection.get( 'John' ) ); // -> { name: 'John' }\n\t * ```\n\t *\n\t * The collection is empty by default. You can add new items using the {@link #add} method:\n\t *\n\t * ```ts\n\t * const collection = new Collection<{ id: string }>();\n\t *\n\t * collection.add( { id: 'John' } );\n\t * console.log( collection.get( 0 ) ); // -> { id: 'John' }\n\t * ```\n\t *\n\t * @param options The options object.\n\t * @param options.idProperty The name of the property which is used to identify an item.\n\t * Items that do not have such a property will be assigned one when added to the collection.\n\t */\n\tconstructor( options?: { readonly idProperty?: string } );\n\n\t/**\n\t * Creates a new Collection instance with specified initial items.\n\t *\n\t * ```ts\n\t * const collection = new Collection<{ id: string }>( [ { id: 'John' }, { id: 'Mike' } ] );\n\t *\n\t * console.log( collection.get( 0 ) ); // -> { id: 'John' }\n\t * console.log( collection.get( 1 ) ); // -> { id: 'Mike' }\n\t * console.log( collection.get( 'Mike' ) ); // -> { id: 'Mike' }\n\t * ```\n\t *\n\t * You can always pass a configuration object as the last argument of the constructor:\n\t *\n\t * ```ts\n\t * const nonEmptyCollection = new Collection<{ name: string }>( [ { name: 'John' } ], { idProperty: 'name' } );\n\t * nonEmptyCollection.add( { name: 'George' } );\n\t * console.log( collection.get( 'George' ) ); // -> { name: 'George' }\n\t * console.log( collection.get( 'John' ) ); // -> { name: 'John' }\n\t * ```\n\t *\n\t * @param initialItems The initial items of the collection.\n\t * @param options The options object.\n\t * @param options.idProperty The name of the property which is used to identify an item.\n\t * Items that do not have such a property will be assigned one when added to the collection.\n\t */\n\tconstructor( initialItems: Iterable<T>, options?: { readonly idProperty?: string } );\n\n\tconstructor(\n\t\tinitialItemsOrOptions: Iterable<T> | { readonly idProperty?: string } = {},\n\t\toptions: { readonly idProperty?: string } = {}\n\t) {\n\t\tsuper();\n\n\t\tconst hasInitialItems = isIterable( initialItemsOrOptions );\n\n\t\tif ( !hasInitialItems ) {\n\t\t\toptions = initialItemsOrOptions;\n\t\t}\n\n\t\tthis._items = [];\n\t\tthis._itemMap = new Map();\n\t\tthis._idProperty = options.idProperty || 'id';\n\t\tthis._bindToExternalToInternalMap = new WeakMap();\n\t\tthis._bindToInternalToExternalMap = new WeakMap();\n\t\tthis._skippedIndexesFromExternal = [];\n\n\t\t// Set the initial content of the collection (if provided in the constructor).\n\t\tif ( hasInitialItems ) {\n\t\t\tfor ( const item of initialItemsOrOptions ) {\n\t\t\t\tthis._items.push( item );\n\t\t\t\tthis._itemMap.set( this._getItemIdBeforeAdding( item ), item );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * The number of items available in the collection.\n\t */\n\tpublic get length(): number {\n\t\treturn this._items.length;\n\t}\n\n\t/**\n\t * Returns the first item from the collection or null when collection is empty.\n\t */\n\tpublic get first(): T | null {\n\t\treturn this._items[ 0 ] || null;\n\t}\n\n\t/**\n\t * Returns the last item from the collection or null when collection is empty.\n\t */\n\tpublic get last(): T | null {\n\t\treturn this._items[ this.length - 1 ] || null;\n\t}\n\n\t/**\n\t * Adds an item into the collection.\n\t *\n\t * If the item does not have an id, then it will be automatically generated and set on the item.\n\t *\n\t * @param item\n\t * @param index The position of the item in the collection. The item\n\t * is pushed to the collection when `index` not specified.\n\t * @fires add\n\t * @fires change\n\t */\n\tpublic add( item: T, index?: number ): this {\n\t\treturn this.addMany( [ item ], index );\n\t}\n\n\t/**\n\t * Adds multiple items into the collection.\n\t *\n\t * Any item not containing an id will get an automatically generated one.\n\t *\n\t * @param items\n\t * @param index The position of the insertion. Items will be appended if no `index` is specified.\n\t * @fires add\n\t * @fires change\n\t */\n\tpublic addMany( items: Iterable<T>, index?: number ): this {\n\t\tif ( index === undefined ) {\n\t\t\tindex = this._items.length;\n\t\t} else if ( index > this._items.length || index < 0 ) {\n\t\t\t/**\n\t\t\t * The `index` passed to {@link module:utils/collection~Collection#addMany `Collection#addMany()`}\n\t\t\t * is invalid. It must be a number between 0 and the collection's length.\n\t\t\t *\n\t\t\t * @error collection-add-item-invalid-index\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-add-item-invalid-index', this );\n\t\t}\n\n\t\tlet offset = 0;\n\n\t\tfor ( const item of items ) {\n\t\t\tconst itemId = this._getItemIdBeforeAdding( item );\n\t\t\tconst currentItemIndex = index + offset;\n\n\t\t\tthis._items.splice( currentItemIndex, 0, item );\n\t\t\tthis._itemMap.set( itemId, item );\n\n\t\t\tthis.fire<CollectionAddEvent<T>>( 'add', item, currentItemIndex );\n\n\t\t\toffset++;\n\t\t}\n\n\t\tthis.fire<CollectionChangeEvent<T>>( 'change', {\n\t\t\tadded: items,\n\t\t\tremoved: [],\n\t\t\tindex\n\t\t} );\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Gets an item by its ID or index.\n\t *\n\t * @param idOrIndex The item ID or index in the collection.\n\t * @returns The requested item or `null` if such item does not exist.\n\t */\n\tpublic get( idOrIndex: string | number ): T | null {\n\t\tlet item: T | undefined;\n\n\t\tif ( typeof idOrIndex == 'string' ) {\n\t\t\titem = this._itemMap.get( idOrIndex );\n\t\t} else if ( typeof idOrIndex == 'number' ) {\n\t\t\titem = this._items[ idOrIndex ];\n\t\t} else {\n\t\t\t/**\n\t\t\t * An index or ID must be given.\n\t\t\t *\n\t\t\t * @error collection-get-invalid-arg\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-get-invalid-arg', this );\n\t\t}\n\n\t\treturn item || null;\n\t}\n\n\t/**\n\t * Returns a Boolean indicating whether the collection contains an item.\n\t *\n\t * @param itemOrId The item or its ID in the collection.\n\t * @returns `true` if the collection contains the item, `false` otherwise.\n\t */\n\tpublic has( itemOrId: T | string ): boolean {\n\t\tif ( typeof itemOrId == 'string' ) {\n\t\t\treturn this._itemMap.has( itemOrId );\n\t\t} else { // Object\n\t\t\tconst idProperty = this._idProperty;\n\t\t\tconst id = itemOrId[ idProperty ];\n\n\t\t\treturn id && this._itemMap.has( id );\n\t\t}\n\t}\n\n\t/**\n\t * Gets an index of an item in the collection.\n\t * When an item is not defined in the collection, the index will equal -1.\n\t *\n\t * @param itemOrId The item or its ID in the collection.\n\t * @returns The index of a given item.\n\t */\n\tpublic getIndex( itemOrId: T | string ): number {\n\t\tlet item: T | undefined;\n\n\t\tif ( typeof itemOrId == 'string' ) {\n\t\t\titem = this._itemMap.get( itemOrId );\n\t\t} else {\n\t\t\titem = itemOrId;\n\t\t}\n\n\t\treturn item ? this._items.indexOf( item ) : -1;\n\t}\n\n\t/**\n\t * Removes an item from the collection.\n\t *\n\t * @param subject The item to remove, its ID or index in the collection.\n\t * @returns The removed item.\n\t * @fires remove\n\t * @fires change\n\t */\n\tpublic remove( subject: T | number | string ): T {\n\t\tconst [ item, index ] = this._remove( subject );\n\n\t\tthis.fire<CollectionChangeEvent<T>>( 'change', {\n\t\t\tadded: [],\n\t\t\tremoved: [ item ],\n\t\t\tindex\n\t\t} );\n\n\t\treturn item;\n\t}\n\n\t/**\n\t * Executes the callback for each item in the collection and composes an array or values returned by this callback.\n\t *\n\t * @typeParam U The result type of the callback.\n\t * @param callback\n\t * @param ctx Context in which the `callback` will be called.\n\t * @returns The result of mapping.\n\t */\n\tpublic map<U>(\n\t\tcallback: ( item: T, index: number ) => U,\n\t\tctx?: any\n\t): Array<U> {\n\t\treturn this._items.map( callback, ctx );\n\t}\n\n\t/**\n\t * Finds the first item in the collection for which the `callback` returns a true value.\n\t *\n\t * @param callback\n\t * @param ctx Context in which the `callback` will be called.\n\t * @returns The item for which `callback` returned a true value.\n\t */\n\tpublic find(\n\t\tcallback: ( item: T, index: number ) => boolean,\n\t\tctx?: any\n\t): T | undefined {\n\t\treturn this._items.find( callback, ctx );\n\t}\n\n\t/**\n\t * Returns an array with items for which the `callback` returned a true value.\n\t *\n\t * @param callback\n\t * @param ctx Context in which the `callback` will be called.\n\t * @returns The array with matching items.\n\t */\n\tpublic filter(\n\t\tcallback: ( item: T, index: number ) => boolean,\n\t\tctx?: any\n\t): Array<T> {\n\t\treturn this._items.filter( callback, ctx );\n\t}\n\n\t/**\n\t * Removes all items from the collection and destroys the binding created using\n\t * {@link #bindTo}.\n\t *\n\t * @fires remove\n\t * @fires change\n\t */\n\tpublic clear(): void {\n\t\tif ( this._bindToCollection ) {\n\t\t\tthis.stopListening( this._bindToCollection );\n\t\t\tthis._bindToCollection = null;\n\t\t}\n\n\t\tconst removedItems = Array.from( this._items );\n\n\t\twhile ( this.length ) {\n\t\t\tthis._remove( 0 );\n\t\t}\n\n\t\tthis.fire<CollectionChangeEvent<T>>( 'change', {\n\t\t\tadded: [],\n\t\t\tremoved: removedItems,\n\t\t\tindex: 0\n\t\t} );\n\t}\n\n\t/**\n\t * Binds and synchronizes the collection with another one.\n\t *\n\t * The binding can be a simple factory:\n\t *\n\t * ```ts\n\t * class FactoryClass {\n\t * \tpublic label: string;\n\t *\n\t * \tconstructor( data: { label: string } ) {\n\t * \t\tthis.label = data.label;\n\t * \t}\n\t * }\n\t *\n\t * const source = new Collection<{ label: string }>( { idProperty: 'label' } );\n\t * const target = new Collection<FactoryClass>();\n\t *\n\t * target.bindTo( source ).as( FactoryClass );\n\t *\n\t * source.add( { label: 'foo' } );\n\t * source.add( { label: 'bar' } );\n\t *\n\t * console.log( target.length ); // 2\n\t * console.log( target.get( 1 ).label ); // 'bar'\n\t *\n\t * source.remove( 0 );\n\t * console.log( target.length ); // 1\n\t * console.log( target.get( 0 ).label ); // 'bar'\n\t * ```\n\t *\n\t * or the factory driven by a custom callback:\n\t *\n\t * ```ts\n\t * class FooClass {\n\t * \tpublic label: string;\n\t *\n\t * \tconstructor( data: { label: string } ) {\n\t * \t\tthis.label = data.label;\n\t * \t}\n\t * }\n\t *\n\t * class BarClass {\n\t * \tpublic label: string;\n\t *\n\t * \tconstructor( data: { label: string } ) {\n\t * \t\tthis.label = data.label;\n\t * \t}\n\t * }\n\t *\n\t * const source = new Collection<{ label: string }>( { idProperty: 'label' } );\n\t * const target = new Collection<FooClass | BarClass>();\n\t *\n\t * target.bindTo( source ).using( ( item ) => {\n\t * \tif ( item.label == 'foo' ) {\n\t * \t\treturn new FooClass( item );\n\t * \t} else {\n\t * \t\treturn new BarClass( item );\n\t * \t}\n\t * } );\n\t *\n\t * source.add( { label: 'foo' } );\n\t * source.add( { label: 'bar' } );\n\t *\n\t * console.log( target.length ); // 2\n\t * console.log( target.get( 0 ) instanceof FooClass ); // true\n\t * console.log( target.get( 1 ) instanceof BarClass ); // true\n\t * ```\n\t *\n\t * or the factory out of property name:\n\t *\n\t * ```ts\n\t * const source = new Collection<{ nested: { value: string } }>();\n\t * const target = new Collection<{ value: string }>();\n\t *\n\t * target.bindTo( source ).using( 'nested' );\n\t *\n\t * source.add( { nested: { value: 'foo' } } );\n\t * source.add( { nested: { value: 'bar' } } );\n\t *\n\t * console.log( target.length ); // 2\n\t * console.log( target.get( 0 ).value ); // 'foo'\n\t * console.log( target.get( 1 ).value ); // 'bar'\n\t * ```\n\t *\n\t * It's possible to skip specified items by returning null value:\n\t *\n\t * ```ts\n\t * const source = new Collection<{ hidden: boolean }>();\n\t * const target = new Collection<{ hidden: boolean }>();\n\t *\n\t * target.bindTo( source ).using( item => {\n\t * \tif ( item.hidden ) {\n\t * \t\treturn null;\n\t * \t}\n\t *\n\t * \treturn item;\n\t * } );\n\t *\n\t * source.add( { hidden: true } );\n\t * source.add( { hidden: false } );\n\t *\n\t * console.log( source.length ); // 2\n\t * console.log( target.length ); // 1\n\t * ```\n\t *\n\t * **Note**: {@link #clear} can be used to break the binding.\n\t *\n\t * @typeParam S The type of `externalCollection` element.\n\t * @param externalCollection A collection to be bound.\n\t * @returns The binding chain object.\n\t */\n\tpublic bindTo<S extends Record<string, any>>(\n\t\texternalCollection: Collection<S>\n\t): CollectionBindToChain<S, T> {\n\t\tif ( this._bindToCollection ) {\n\t\t\t/**\n\t\t\t * The collection cannot be bound more than once.\n\t\t\t *\n\t\t\t * @error collection-bind-to-rebind\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-bind-to-rebind', this );\n\t\t}\n\n\t\tthis._bindToCollection = externalCollection;\n\n\t\treturn {\n\t\t\tas: Class => {\n\t\t\t\tthis._setUpBindToBinding<S>( item => new Class( item ) );\n\t\t\t},\n\n\t\t\tusing: callbackOrProperty => {\n\t\t\t\tif ( typeof callbackOrProperty == 'function' ) {\n\t\t\t\t\tthis._setUpBindToBinding<S>( callbackOrProperty );\n\t\t\t\t} else {\n\t\t\t\t\tthis._setUpBindToBinding<S>( item => item[ callbackOrProperty ] );\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t}\n\n\t/**\n\t * Finalizes and activates a binding initiated by {#bindTo}.\n\t *\n\t * @param factory A function which produces collection items.\n\t */\n\tprivate _setUpBindToBinding<S>( factory: ( item: S ) => T | null ): void {\n\t\tconst externalCollection = this._bindToCollection!;\n\n\t\t// Adds the item to the collection once a change has been done to the external collection.\n\t\tconst addItem = ( evt: unknown, externalItem: S, index: number ) => {\n\t\t\tconst isExternalBoundToThis = externalCollection._bindToCollection == this;\n\t\t\tconst externalItemBound = externalCollection._bindToInternalToExternalMap.get( externalItem );\n\n\t\t\t// If an external collection is bound to this collection, which makes it a 2–way binding,\n\t\t\t// and the particular external collection item is already bound, don't add it here.\n\t\t\t// The external item has been created **out of this collection's item** and (re)adding it will\n\t\t\t// cause a loop.\n\t\t\tif ( isExternalBoundToThis && externalItemBound ) {\n\t\t\t\tthis._bindToExternalToInternalMap.set( externalItem, externalItemBound );\n\t\t\t\tthis._bindToInternalToExternalMap.set( externalItemBound, externalItem );\n\t\t\t} else {\n\t\t\t\tconst item = factory( externalItem );\n\n\t\t\t\t// When there is no item we need to remember skipped index first and then we can skip this item.\n\t\t\t\tif ( !item ) {\n\t\t\t\t\tthis._skippedIndexesFromExternal.push( index );\n\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Lets try to put item at the same index as index in external collection\n\t\t\t\t// but when there are a skipped items in one or both collections we need to recalculate this index.\n\t\t\t\tlet finalIndex = index;\n\n\t\t\t\t// When we try to insert item after some skipped items from external collection we need\n\t\t\t\t// to include this skipped items and decrease index.\n\t\t\t\t//\n\t\t\t\t// For the following example:\n\t\t\t\t// external -> [ 'A', 'B - skipped for internal', 'C - skipped for internal' ]\n\t\t\t\t// internal -> [ A ]\n\t\t\t\t//\n\t\t\t\t// Another item is been added at the end of external collection:\n\t\t\t\t// external.add( 'D' )\n\t\t\t\t// external -> [ 'A', 'B - skipped for internal', 'C - skipped for internal', 'D' ]\n\t\t\t\t//\n\t\t\t\t// We can't just add 'D' to internal at the same index as index in external because\n\t\t\t\t// this will produce empty indexes what is invalid:\n\t\t\t\t// internal -> [ 'A', empty, empty, 'D' ]\n\t\t\t\t//\n\t\t\t\t// So we need to include skipped items and decrease index\n\t\t\t\t// internal -> [ 'A', 'D' ]\n\t\t\t\tfor ( const skipped of this._skippedIndexesFromExternal ) {\n\t\t\t\t\tif ( index > skipped ) {\n\t\t\t\t\t\tfinalIndex--;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// We need to take into consideration that external collection could skip some items from\n\t\t\t\t// internal collection.\n\t\t\t\t//\n\t\t\t\t// For the following example:\n\t\t\t\t// internal -> [ 'A', 'B - skipped for external', 'C - skipped for external' ]\n\t\t\t\t// external -> [ A ]\n\t\t\t\t//\n\t\t\t\t// Another item is been added at the end of external collection:\n\t\t\t\t// external.add( 'D' )\n\t\t\t\t// external -> [ 'A', 'D' ]\n\t\t\t\t//\n\t\t\t\t// We need to include skipped items and place new item after them:\n\t\t\t\t// internal -> [ 'A', 'B - skipped for external', 'C - skipped for external', 'D' ]\n\t\t\t\tfor ( const skipped of externalCollection._skippedIndexesFromExternal ) {\n\t\t\t\t\tif ( finalIndex >= skipped ) {\n\t\t\t\t\t\tfinalIndex++;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tthis._bindToExternalToInternalMap.set( externalItem, item );\n\t\t\t\tthis._bindToInternalToExternalMap.set( item, externalItem );\n\t\t\t\tthis.add( item, finalIndex );\n\n\t\t\t\t// After adding new element to internal collection we need update indexes\n\t\t\t\t// of skipped items in external collection.\n\t\t\t\tfor ( let i = 0; i < externalCollection._skippedIndexesFromExternal.length; i++ ) {\n\t\t\t\t\tif ( finalIndex <= externalCollection._skippedIndexesFromExternal[ i ] ) {\n\t\t\t\t\t\texternalCollection._skippedIndexesFromExternal[ i ]++;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\t// Load the initial content of the collection.\n\t\tfor ( const externalItem of externalCollection ) {\n\t\t\taddItem( null, externalItem, externalCollection.getIndex( externalItem ) );\n\t\t}\n\n\t\t// Synchronize the with collection as new items are added.\n\t\tthis.listenTo<CollectionAddEvent<S>>( externalCollection, 'add', addItem );\n\n\t\t// Synchronize the with collection as new items are removed.\n\t\tthis.listenTo<CollectionRemoveEvent<S>>( externalCollection, 'remove', ( evt, externalItem, index ) => {\n\t\t\tconst item = this._bindToExternalToInternalMap.get( externalItem );\n\n\t\t\tif ( item ) {\n\t\t\t\tthis.remove( item );\n\t\t\t}\n\n\t\t\t// After removing element from external collection we need update/remove indexes\n\t\t\t// of skipped items in internal collection.\n\t\t\tthis._skippedIndexesFromExternal = this._skippedIndexesFromExternal.reduce( ( result, skipped ) => {\n\t\t\t\tif ( index < skipped ) {\n\t\t\t\t\tresult.push( skipped - 1 );\n\t\t\t\t}\n\n\t\t\t\tif ( index > skipped ) {\n\t\t\t\t\tresult.push( skipped );\n\t\t\t\t}\n\n\t\t\t\treturn result;\n\t\t\t}, [] as Array<number> );\n\t\t} );\n\t}\n\n\t/**\n\t * Returns an unique id property for a given `item`.\n\t *\n\t * The method will generate new id and assign it to the `item` if it doesn't have any.\n\t *\n\t * @param item Item to be added.\n\t */\n\tprivate _getItemIdBeforeAdding( item: any ): string {\n\t\tconst idProperty = this._idProperty;\n\t\tlet itemId: string | undefined;\n\n\t\tif ( ( idProperty in item ) ) {\n\t\t\titemId = item[ idProperty ];\n\n\t\t\tif ( typeof itemId != 'string' ) {\n\t\t\t\t/**\n\t\t\t\t * This item's ID should be a string.\n\t\t\t\t *\n\t\t\t\t * @error collection-add-invalid-id\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'collection-add-invalid-id', this );\n\t\t\t}\n\n\t\t\tif ( this.get( itemId ) ) {\n\t\t\t\t/**\n\t\t\t\t * This item already exists in the collection.\n\t\t\t\t *\n\t\t\t\t * @error collection-add-item-already-exists\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'collection-add-item-already-exists', this );\n\t\t\t}\n\t\t} else {\n\t\t\titem[ idProperty ] = itemId = uid();\n\t\t}\n\n\t\treturn itemId;\n\t}\n\n\t/**\n\t * Core {@link #remove} method implementation shared in other functions.\n\t *\n\t * In contrast this method **does not** fire the {@link #event:change} event.\n\t *\n\t * @param subject The item to remove, its id or index in the collection.\n\t * @returns Returns an array with the removed item and its index.\n\t * @fires remove\n\t */\n\tprivate _remove( subject: T | number | string ): [ item: T, index: number ] {\n\t\tlet index: number, id: string, item: T;\n\t\tlet itemDoesNotExist = false;\n\t\tconst idProperty = this._idProperty;\n\n\t\tif ( typeof subject == 'string' ) {\n\t\t\tid = subject;\n\t\t\titem = this._itemMap.get( id )!;\n\t\t\titemDoesNotExist = !item;\n\n\t\t\tif ( item ) {\n\t\t\t\tindex = this._items.indexOf( item );\n\t\t\t}\n\t\t} else if ( typeof subject == 'number' ) {\n\t\t\tindex = subject;\n\t\t\titem = this._items[ index ];\n\t\t\titemDoesNotExist = !item;\n\n\t\t\tif ( item ) {\n\t\t\t\tid = item[ idProperty ]!;\n\t\t\t}\n\t\t} else {\n\t\t\titem = subject;\n\t\t\tid = item[ idProperty ]!;\n\t\t\tindex = this._items.indexOf( item );\n\t\t\titemDoesNotExist = ( index == -1 || !this._itemMap.get( id ) );\n\t\t}\n\n\t\tif ( itemDoesNotExist ) {\n\t\t\t/**\n\t\t\t * Item not found.\n\t\t\t *\n\t\t\t * @error collection-remove-404\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-remove-404', this );\n\t\t}\n\n\t\tthis._items.splice( index!, 1 );\n\t\tthis._itemMap.delete( id! );\n\n\t\tconst externalItem = this._bindToInternalToExternalMap.get( item );\n\t\tthis._bindToInternalToExternalMap.delete( item );\n\t\tthis._bindToExternalToInternalMap.delete( externalItem );\n\n\t\tthis.fire<CollectionRemoveEvent<T>>( 'remove', item, index! );\n\n\t\treturn [ item, index! ];\n\t}\n\n\t/**\n\t * Iterable interface.\n\t */\n\tpublic [ Symbol.iterator ](): Iterator<T> {\n\t\treturn this._items[ Symbol.iterator ]();\n\t}\n}\n\n/**\n * Fired when an item is added to the collection.\n *\n * @eventName add\n * @param item The added item.\n * @param index An index where the addition occurred.\n */\nexport type CollectionAddEvent<T = any> = {\n\tname: 'add';\n\targs: [ item: T, index: number ];\n};\n\n/**\n * Fired when the collection was changed due to adding or removing items.\n *\n * @eventName change\n * @param added A list of added items.\n * @param removed A list of removed items.\n * @param index An index where the addition or removal occurred.\n */\nexport type CollectionChangeEvent<T = any> = {\n\tname: 'change';\n\targs: [ {\n\t\tadded: Iterable<T>;\n\t\tremoved: Iterable<T>;\n\t\tindex: number;\n\t} ];\n};\n\n/**\n * Fired when an item is removed from the collection.\n *\n * @eventName remove\n * @param item The removed item.\n * @param index Index from which item was removed.\n */\nexport type CollectionRemoveEvent<T = any> = {\n\tname: 'remove';\n\targs: [ item: T, index: number ];\n};\n\n/**\n * An object returned by the {@link module:utils/collection~Collection#bindTo `bindTo()`} method\n * providing functions that specify the type of the binding.\n *\n * See the {@link module:utils/collection~Collection#bindTo `bindTo()`} documentation for examples.\n */\nexport interface CollectionBindToChain<S, T> {\n\n\t/**\n\t * Creates the class factory binding in which items of the source collection are passed to\n\t * the constructor of the specified class.\n\t *\n\t * @param Class The class constructor used to create instances in the factory.\n\t */\n\tas( Class: new ( item: S ) => T ): void;\n\n\t/**\n\t * Creates a callback or a property binding.\n\t *\n\t * @param callbackOrProperty When the function is passed, it should return\n\t * the collection items. When the string is provided, the property value is used to create the bound collection items.\n\t */\n\tusing( callbackOrProperty: keyof S | ( ( item: S ) => T | null ) ): void;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/first\n */\n\n/**\n * Returns first item of the given `iterator`.\n */\nexport default function first<T>( iterator: Iterator<T> ): T | null {\n\tconst iteratorItem = iterator.next();\n\n\tif ( iteratorItem.done ) {\n\t\treturn null;\n\t}\n\n\treturn iteratorItem.value;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* global setTimeout, clearTimeout */\n\n/**\n * @module utils/focustracker\n */\n\nimport DomEmitterMixin from './dom/emittermixin';\nimport ObservableMixin from './observablemixin';\nimport CKEditorError from './ckeditorerror';\n\n/**\n * Allows observing a group of `Element`s whether at least one of them is focused.\n *\n * Used by the {@link module:core/editor/editor~Editor} in order to track whether the focus is still within the application,\n * or were used outside of its UI.\n *\n * **Note** `focus` and `blur` listeners use event capturing, so it is only needed to register wrapper `Element`\n * which contain other `focusable` elements. But note that this wrapper element has to be focusable too\n * (have e.g. `tabindex=\"-1\"`).\n *\n * Check out the {@glink framework/guides/deep-dive/ui/focus-tracking \"Deep dive into focus tracking\" guide} to learn more.\n */\nexport default class FocusTracker extends DomEmitterMixin( ObservableMixin() ) {\n\t/**\n\t * True when one of the registered elements is focused.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * The currently focused element.\n\t *\n\t * While {@link #isFocused `isFocused`} remains `true`, the focus can\n\t * move between different UI elements. This property tracks those\n\t * elements and tells which one is currently focused.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public focusedElement: Element | null;\n\n\t/**\n\t * List of registered elements.\n\t */\n\tprivate _elements: Set<Element> = new Set();\n\n\t/**\n\t * Event loop timeout.\n\t */\n\tprivate _nextEventLoopTimeout: ReturnType<typeof setTimeout> | null = null;\n\n\tconstructor() {\n\t\tsuper();\n\n\t\tthis.set( 'isFocused', false );\n\t\tthis.set( 'focusedElement', null );\n\t}\n\n\t/**\n\t * Starts tracking the specified element.\n\t */\n\tpublic add( element: Element ): void {\n\t\tif ( this._elements.has( element ) ) {\n\t\t\t/**\n\t\t\t * This element is already tracked by {@link module:utils/focustracker~FocusTracker}.\n\t\t\t *\n\t\t\t * @error focustracker-add-element-already-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'focustracker-add-element-already-exist', this );\n\t\t}\n\n\t\tthis.listenTo( element, 'focus', () => this._focus( element ), { useCapture: true } );\n\t\tthis.listenTo( element, 'blur', () => this._blur(), { useCapture: true } );\n\t\tthis._elements.add( element );\n\t}\n\n\t/**\n\t * Stops tracking the specified element and stops listening on this element.\n\t */\n\tpublic remove( element: Element ): void {\n\t\tif ( element === this.focusedElement ) {\n\t\t\tthis._blur();\n\t\t}\n\n\t\tif ( this._elements.has( element ) ) {\n\t\t\tthis.stopListening( element );\n\t\t\tthis._elements.delete( element );\n\t\t}\n\t}\n\n\t/**\n\t * Destroys the focus tracker by:\n\t * - Disabling all event listeners attached to tracked elements.\n\t * - Removing all tracked elements that were previously added.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Stores currently focused element and set {#isFocused} as `true`.\n\t */\n\tprivate _focus( element: Element ): void {\n\t\tclearTimeout( this._nextEventLoopTimeout! );\n\n\t\tthis.focusedElement = element;\n\t\tthis.isFocused = true;\n\t}\n\n\t/**\n\t * Clears currently focused element and set {@link #isFocused} as `false`.\n\t * This method uses `setTimeout` to change order of fires `blur` and `focus` events.\n\t */\n\tprivate _blur(): void {\n\t\tclearTimeout( this._nextEventLoopTimeout! );\n\n\t\tthis._nextEventLoopTimeout = setTimeout( () => {\n\t\t\tthis.focusedElement = null;\n\t\t\tthis.isFocused = false;\n\t\t}, 0 );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/keystrokehandler\n */\n\nimport DomEmitterMixin, { type DomEmitter } from './dom/emittermixin';\nimport type { Emitter } from './emittermixin';\nimport { getCode, parseKeystroke, type KeystrokeInfo } from './keyboard';\nimport type { PriorityString } from './priorities';\n\n/**\n * Keystroke handler allows registering callbacks for given keystrokes.\n *\n * The most frequent use of this class is through the {@link module:core/editor/editor~Editor#keystrokes `editor.keystrokes`}\n * property. It allows listening to keystrokes executed in the editing view:\n *\n * ```ts\n * editor.keystrokes.set( 'Ctrl+A', ( keyEvtData, cancel ) => {\n * \tconsole.log( 'Ctrl+A has been pressed' );\n * \tcancel();\n * } );\n * ```\n *\n * However, this utility class can be used in various part of the UI. For instance, a certain {@link module:ui/view~View}\n * can use it like this:\n *\n * ```ts\n * class MyView extends View {\n * \tconstructor() {\n * \t\tthis.keystrokes = new KeystrokeHandler();\n *\n * \t\tthis.keystrokes.set( 'tab', handleTabKey );\n * \t}\n *\n * \trender() {\n * \t\tsuper.render();\n *\n * \t\tthis.keystrokes.listenTo( this.element );\n * \t}\n * }\n * ```\n *\n * That keystroke handler will listen to `keydown` events fired in this view's main element.\n *\n */\nexport default class KeystrokeHandler {\n\t/**\n\t * Listener used to listen to events for easier keystroke handler destruction.\n\t */\n\tprivate readonly _listener: DomEmitter;\n\n\t/**\n\t * Creates an instance of the keystroke handler.\n\t */\n\tconstructor() {\n\t\tthis._listener = new ( DomEmitterMixin() )();\n\t}\n\n\t/**\n\t * Starts listening for `keydown` events from a given emitter.\n\t */\n\tpublic listenTo( emitter: Emitter | HTMLElement | Window ): void {\n\t\t// The #_listener works here as a kind of dispatcher. It groups the events coming from the same\n\t\t// keystroke so the listeners can be attached to them with different priorities.\n\t\t//\n\t\t// E.g. all the keystrokes with the `keyCode` of 42 coming from the `emitter` are propagated\n\t\t// as a `_keydown:42` event by the `_listener`. If there's a callback created by the `set`\n\t\t// method for this 42 keystroke, it listens to the `_listener#_keydown:42` event only and interacts\n\t\t// only with other listeners of this particular event, thus making it possible to prioritize\n\t\t// the listeners and safely cancel execution, when needed. Instead of duplicating the Emitter logic,\n\t\t// the KeystrokeHandler re–uses it to do its job.\n\t\tthis._listener.listenTo( emitter as HTMLElement | Window, 'keydown', ( evt, keyEvtData ) => {\n\t\t\tthis._listener.fire( '_keydown:' + getCode( keyEvtData ), keyEvtData );\n\t\t} );\n\t}\n\n\t/**\n\t * Registers a handler for the specified keystroke.\n\t *\n\t * @param keystroke Keystroke defined in a format accepted by\n\t * the {@link module:utils/keyboard~parseKeystroke} function.\n\t * @param callback A function called with the\n\t * {@link module:engine/view/observer/keyobserver~KeyEventData key event data} object and\n\t * a helper function to call both `preventDefault()` and `stopPropagation()` on the underlying event.\n\t * @param options Additional options.\n\t * @param options.priority The priority of the keystroke\n\t * callback. The higher the priority value the sooner the callback will be executed. Keystrokes having the same priority\n\t * are called in the order they were added.\n\t */\n\tpublic set(\n\t\tkeystroke: string | ReadonlyArray<string | number>,\n\t\tcallback: ( ev: KeyboardEvent, cancel: () => void ) => void,\n\t\toptions: { readonly priority?: PriorityString } = {}\n\t): void {\n\t\tconst keyCode = parseKeystroke( keystroke );\n\t\tconst priority = options.priority;\n\n\t\t// Execute the passed callback on KeystrokeHandler#_keydown.\n\t\t// TODO: https://github.com/ckeditor/ckeditor5-utils/issues/144\n\t\tthis._listener.listenTo( this._listener, '_keydown:' + keyCode, ( evt, keyEvtData: KeyboardEvent ) => {\n\t\t\tcallback( keyEvtData, () => {\n\t\t\t\t// Stop the event in the DOM: no listener in the web page\n\t\t\t\t// will be triggered by this event.\n\t\t\t\tkeyEvtData.preventDefault();\n\t\t\t\tkeyEvtData.stopPropagation();\n\n\t\t\t\t// Stop the event in the KeystrokeHandler: no more callbacks\n\t\t\t\t// will be executed for this keystroke.\n\t\t\t\tevt.stop();\n\t\t\t} );\n\n\t\t\t// Mark this keystroke as handled by the callback. See: #press.\n\t\t\tevt.return = true;\n\t\t}, { priority } );\n\t}\n\n\t/**\n\t * Triggers a keystroke handler for a specified key combination, if such a keystroke was {@link #set defined}.\n\t *\n\t * @param keyEvtData Key event data.\n\t * @returns Whether the keystroke was handled.\n\t */\n\tpublic press( keyEvtData: Readonly<KeystrokeInfo> ): boolean {\n\t\treturn !!this._listener.fire( '_keydown:' + getCode( keyEvtData ), keyEvtData );\n\t}\n\n\t/**\n\t * Destroys the keystroke handler.\n\t */\n\tpublic destroy(): void {\n\t\tthis._listener.stopListening();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/tomap\n */\n\nimport objectToMap from './objecttomap';\nimport isIterable from './isiterable';\n\n/**\n * Transforms object or iterable to map. Iterable needs to be in the format acceptable by the `Map` constructor.\n *\n * ```ts\n * map = toMap( { 'foo': 1, 'bar': 2 } );\n * map = toMap( [ [ 'foo', 1 ], [ 'bar', 2 ] ] );\n * map = toMap( anotherMap );\n * ```\n *\n * @param data Object or iterable to transform.\n * @returns Map created from data.\n */\nexport default function toMap<T>( data: { readonly [ key: string ]: T } | Iterable<readonly [ string, T ]> | null | undefined ):\n\tMap<string, T>\n{\n\tif ( isIterable( data ) ) {\n\t\treturn new Map( data );\n\t} else {\n\t\treturn objectToMap( data );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/objecttomap\n */\n\n/**\n * Transforms object to map.\n *\n * ```ts\n * const map = objectToMap( { 'foo': 1, 'bar': 2 } );\n * map.get( 'foo' ); // 1\n * ```\n *\n * **Note**: For mixed data (`Object` or `Iterable`) there's a dedicated {@link module:utils/tomap~toMap} function.\n *\n * @param obj Object to transform.\n * @returns Map created from object.\n */\nexport default function objectToMap<T>( obj: { readonly [ key: string ]: T } | null | undefined ): Map<string, T> {\n\tconst map = new Map<string, T>();\n\n\tfor ( const key in obj ) {\n\t\tmap.set( key, obj[ key ] );\n\t}\n\n\treturn map;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Set of utils to handle unicode characters.\n *\n * @module utils/unicode\n */\n\n/**\n * Checks whether given `character` is a combining mark.\n *\n * @param character Character to check.\n */\nexport function isCombiningMark( character: string ): boolean {\n\t// eslint-disable-next-line no-misleading-character-class\n\treturn !!character && character.length == 1 && /[\\u0300-\\u036f\\u1ab0-\\u1aff\\u1dc0-\\u1dff\\u20d0-\\u20ff\\ufe20-\\ufe2f]/.test( character );\n}\n\n/**\n * Checks whether given `character` is a high half of surrogate pair.\n *\n * Using UTF-16 terminology, a surrogate pair denotes UTF-16 character using two UTF-8 characters. The surrogate pair\n * consist of high surrogate pair character followed by low surrogate pair character.\n *\n * @param character Character to check.\n */\nexport function isHighSurrogateHalf( character: string ): boolean {\n\treturn !!character && character.length == 1 && /[\\ud800-\\udbff]/.test( character );\n}\n\n/**\n * Checks whether given `character` is a low half of surrogate pair.\n *\n * Using UTF-16 terminology, a surrogate pair denotes UTF-16 character using two UTF-8 characters. The surrogate pair\n * consist of high surrogate pair character followed by low surrogate pair character.\n *\n * @param character Character to check.\n */\nexport function isLowSurrogateHalf( character: string ): boolean {\n\treturn !!character && character.length == 1 && /[\\udc00-\\udfff]/.test( character );\n}\n\n/**\n * Checks whether given offset in a string is inside a surrogate pair (between two surrogate halves).\n *\n * @param string String to check.\n * @param offset Offset to check.\n */\nexport function isInsideSurrogatePair( string: string, offset: number ): boolean {\n\treturn isHighSurrogateHalf( string.charAt( offset - 1 ) ) && isLowSurrogateHalf( string.charAt( offset ) );\n}\n\n/**\n * Checks whether given offset in a string is between base character and combining mark or between two combining marks.\n *\n * @param string String to check.\n * @param offset Offset to check.\n */\nexport function isInsideCombinedSymbol( string: string, offset: number ): boolean {\n\treturn isCombiningMark( string.charAt( offset ) );\n}\n\nconst EMOJI_PATTERN = buildEmojiRegexp();\n\n/**\n * Checks whether given offset in a string is inside multi-character emoji sequence.\n *\n * @param string String to check.\n * @param offset Offset to check.\n */\nexport function isInsideEmojiSequence( string: string, offset: number ): boolean {\n\tconst matches = String( string ).matchAll( EMOJI_PATTERN );\n\n\treturn Array.from( matches ).some( match => match.index! < offset && offset < match.index! + match[ 0 ].length );\n}\n\nfunction buildEmojiRegexp(): RegExp {\n\tconst parts = [\n\t\t// Emoji Tag Sequence (ETS)\n\t\t/\\p{Emoji}[\\u{E0020}-\\u{E007E}]+\\u{E007F}/u,\n\n\t\t// Emoji Keycap Sequence\n\t\t/\\p{Emoji}\\u{FE0F}?\\u{20E3}/u,\n\n\t\t// Emoji Presentation Sequence\n\t\t/\\p{Emoji}\\u{FE0F}/u,\n\n\t\t// Single-Character Emoji / Emoji Modifier Sequence\n\t\t/(?=\\p{General_Category=Other_Symbol})\\p{Emoji}\\p{Emoji_Modifier}*/u\n\t];\n\n\tconst flagSequence = /\\p{Regional_Indicator}{2}/u.source;\n\tconst emoji = '(?:' + parts.map( part => part.source ).join( '|' ) + ')';\n\tconst sequence = `${ flagSequence }|${ emoji }(?:\\u{200D}${ emoji })*`;\n\n\treturn new RegExp( sequence, 'ug' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-invalid-void-type */\n\n/**\n * @module core/plugin\n */\n\nimport { ObservableMixin, type ObservableSetEvent, type EventInfo } from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\n\n/**\n * The base class for CKEditor plugin classes.\n *\n * @implements module:core/plugin~PluginInterface\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class Plugin extends ObservableMixin() implements PluginInterface {\n\tpublic readonly editor: Editor;\n\n\tpublic declare isEnabled: boolean;\n\n\tprivate _disableStack: Set<string>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The editor instance.\n\t\t *\n\t\t * Note that most editors implement the {@link module:core/editor/editorwithui~EditorWithUI} interface in addition\n\t\t * to the base {@link module:core/editor/editor~Editor} interface. However, editors with an external UI\n\t\t * (i.e. Bootstrap-based) or a headless editor may not implement the {@link module:core/editor/editorwithui~EditorWithUI}\n\t\t * interface.\n\t\t *\n\t\t * Because of above, to make plugins more universal, it is recommended to split features into:\n\t\t *  - The \"editing\" part that only uses the {@link module:core/editor/editor~Editor} interface.\n\t\t *  - The \"UI\" part that uses both the {@link module:core/editor/editor~Editor} interface and\n\t\t *  the {@link module:core/editor/editorwithui~EditorWithUI} interface.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/editor/editor~Editor} #editor\n\t\t */\n\t\tthis.editor = editor;\n\n\t\t/**\n\t\t * Flag indicating whether a plugin is enabled or disabled.\n\t\t * A disabled plugin will not transform text.\n\t\t *\n\t\t * Plugin can be simply disabled like that:\n\t\t *\n\t\t *\t\t// Disable the plugin so that no toolbars are visible.\n\t\t *\t\teditor.plugins.get( 'TextTransformation' ).isEnabled = false;\n\t\t *\n\t\t * You can also use {@link #forceDisabled} method.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #isEnabled\n\t\t */\n\t\tthis.set( 'isEnabled', true );\n\n\t\t/**\n\t\t * Holds identifiers for {@link #forceDisabled} mechanism.\n\t\t *\n\t\t * @type {Set.<String>}\n\t\t * @private\n\t\t */\n\t\tthis._disableStack = new Set();\n\t}\n\n\t/**\n\t * Disables the plugin.\n\t *\n\t * Plugin may be disabled by multiple features or algorithms (at once). When disabling a plugin, unique id should be passed\n\t * (e.g. feature name). The same identifier should be used when {@link #clearForceDisabled enabling back} the plugin.\n\t * The plugin becomes enabled only after all features {@link #clearForceDisabled enabled it back}.\n\t *\n\t * Disabling and enabling a plugin:\n\t *\n\t *\t\tplugin.isEnabled; // -> true\n\t *\t\tplugin.forceDisabled( 'MyFeature' );\n\t *\t\tplugin.isEnabled; // -> false\n\t *\t\tplugin.clearForceDisabled( 'MyFeature' );\n\t *\t\tplugin.isEnabled; // -> true\n\t *\n\t * Plugin disabled by multiple features:\n\t *\n\t *\t\tplugin.forceDisabled( 'MyFeature' );\n\t *\t\tplugin.forceDisabled( 'OtherFeature' );\n\t *\t\tplugin.clearForceDisabled( 'MyFeature' );\n\t *\t\tplugin.isEnabled; // -> false\n\t *\t\tplugin.clearForceDisabled( 'OtherFeature' );\n\t *\t\tplugin.isEnabled; // -> true\n\t *\n\t * Multiple disabling with the same identifier is redundant:\n\t *\n\t *\t\tplugin.forceDisabled( 'MyFeature' );\n\t *\t\tplugin.forceDisabled( 'MyFeature' );\n\t *\t\tplugin.clearForceDisabled( 'MyFeature' );\n\t *\t\tplugin.isEnabled; // -> true\n\t *\n\t * **Note:** some plugins or algorithms may have more complex logic when it comes to enabling or disabling certain plugins,\n\t * so the plugin might be still disabled after {@link #clearForceDisabled} was used.\n\t *\n\t * @param {String} id Unique identifier for disabling. Use the same id when {@link #clearForceDisabled enabling back} the plugin.\n\t */\n\tpublic forceDisabled( id: string ): void {\n\t\tthis._disableStack.add( id );\n\n\t\tif ( this._disableStack.size == 1 ) {\n\t\t\tthis.on<ObservableSetEvent<boolean>>( 'set:isEnabled', forceDisable, { priority: 'highest' } );\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * Clears forced disable previously set through {@link #forceDisabled}. See {@link #forceDisabled}.\n\t *\n\t * @param {String} id Unique identifier, equal to the one passed in {@link #forceDisabled} call.\n\t */\n\tpublic clearForceDisabled( id: string ): void {\n\t\tthis._disableStack.delete( id );\n\n\t\tif ( this._disableStack.size == 0 ) {\n\t\t\tthis.off( 'set:isEnabled', forceDisable );\n\t\t\tthis.isEnabled = true;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get isContextPlugin(): false {\n\t\treturn false;\n\t}\n}\n\n/**\n * The base interface for CKEditor plugins.\n *\n * In its minimal form a plugin can be a simple function that accepts {@link module:core/editor/editor~Editor the editor}\n * as a parameter:\n *\n *\t\t// A simple plugin that enables a data processor.\n *\t\tfunction MyPlugin( editor ) {\n *\t\t\teditor.data.processor = new MyDataProcessor();\n *\t\t}\n *\n * In most cases however, you will want to inherit from the {@link module:core/plugin~Plugin} class which implements the\n * {@link module:utils/observablemixin~ObservableMixin} and is, therefore, more convenient:\n *\n *\t\tclass MyPlugin extends Plugin {\n *\t\t\tinit() {\n *\t\t\t\t// `listenTo()` and `editor` are available thanks to `Plugin`.\n *\t\t\t\t// By using `listenTo()` you will ensure that the listener is removed when\n *\t\t\t\t// the plugin is destroyed.\n *\t\t\t\tthis.listenTo( this.editor.data, 'ready', () => {\n *\t\t\t\t\t// Do something when the data is ready.\n *\t\t\t\t} );\n *\t\t\t}\n *\t\t}\n *\n * The plugin can also implement methods (e.g. {@link module:core/plugin~PluginInterface#init `init()`} or\n * {@link module:core/plugin~PluginInterface#destroy `destroy()`}) which, when present, will be used to properly\n * initialize and destroy the plugin.\n *\n * **Note:** When defined as a plain function, the plugin acts as a constructor and will be\n * called in parallel with other plugins' {@link module:core/plugin~PluginInterface#constructor constructors}.\n * This means the code of that plugin will be executed **before** {@link module:core/plugin~PluginInterface#init `init()`} and\n * {@link module:core/plugin~PluginInterface#afterInit `afterInit()`} methods of other plugins and, for instance,\n * you cannot use it to extend other plugins' {@glink framework/guides/architecture/editing-engine#schema schema}\n * rules as they are defined later on during the `init()` stage.\n *\n * @interface PluginInterface\n */\n\nexport interface PluginInterface {\n\tinit?(): Promise<unknown> | null | undefined | void;\n\tafterInit?(): Promise<unknown> | null | undefined | void;\n\tdestroy(): Promise<unknown> | null | undefined | void;\n}\n\nexport interface PluginConstructor<TContext = Editor> {\n\tnew( editor: TContext ): PluginInterface;\n\n\treadonly requires?: PluginDependencies<TContext>;\n\treadonly pluginName?: string;\n\treadonly isContextPlugin: boolean;\n}\n\nexport type PluginDependencies<TContext = Editor> = Array<PluginConstructor<TContext> | string>;\n\n/**\n * Creates a new plugin instance. This is the first step of the plugin initialization.\n * See also {@link #init} and {@link #afterInit}.\n *\n * A plugin is always instantiated after its {@link module:core/plugin~PluginInterface.requires dependencies} and the\n * {@link #init} and {@link #afterInit} methods are called in the same order.\n *\n * Usually, you will want to put your plugin's initialization code in the {@link #init} method.\n * The constructor can be understood as \"before init\" and used in special cases, just like\n * {@link #afterInit} serves the special \"after init\" scenarios (e.g.the code which depends on other\n * plugins, but which does not {@link module:core/plugin~PluginInterface.requires explicitly require} them).\n *\n * @method #constructor\n * @param {module:core/editor/editor~Editor} editor\n */\n\n/**\n * An array of plugins required by this plugin.\n *\n * To keep the plugin class definition tight it is recommended to define this property as a static getter:\n *\n *\t\timport Image from './image.js';\n *\n *\t\texport default class ImageCaption {\n *\t\t\tstatic get requires() {\n *\t\t\t\treturn [ Image ];\n *\t\t\t}\n *\t\t}\n *\n * @static\n * @readonly\n * @member {Array.<Function>|undefined} module:core/plugin~PluginInterface.requires\n */\n\n/**\n * An optional name of the plugin. If set, the plugin will be available in\n * {@link module:core/plugincollection~PluginCollection#get} by its\n * name and its constructor. If not, then only by its constructor.\n *\n * The name should reflect the constructor name.\n *\n * To keep the plugin class definition tight, it is recommended to define this property as a static getter:\n *\n *\t\texport default class ImageCaption {\n *\t\t\tstatic get pluginName() {\n *\t\t\t\treturn 'ImageCaption';\n *\t\t\t}\n *\t\t}\n *\n * Note: The native `Function.name` property could not be used to keep the plugin name because\n * it will be mangled during code minification.\n *\n * Naming a plugin is necessary to enable removing it through the\n * {@link module:core/editor/editorconfig~EditorConfig#removePlugins `config.removePlugins`} option.\n *\n * @static\n * @readonly\n * @member {String|undefined} module:core/plugin~PluginInterface.pluginName\n */\n\n/**\n * The second stage (after plugin {@link #constructor}) of the plugin initialization.\n * Unlike the plugin constructor this method can be asynchronous.\n *\n * A plugin's `init()` method is called after its {@link module:core/plugin~PluginInterface.requires dependencies} are initialized,\n * so in the same order as the constructors of these plugins.\n *\n * **Note:** This method is optional. A plugin instance does not need to have it defined.\n *\n * @method #init\n * @returns {null|Promise}\n */\n\n/**\n * The third (and last) stage of the plugin initialization. See also {@link #constructor} and {@link #init}.\n *\n * **Note:** This method is optional. A plugin instance does not need to have it defined.\n *\n * @method #afterInit\n * @returns {null|Promise}\n */\n\n/**\n * Destroys the plugin.\n *\n * **Note:** This method is optional. A plugin instance does not need to have it defined.\n *\n * @method #destroy\n * @returns {null|Promise}\n */\n\n/**\n * A flag which defines if a plugin is allowed or not allowed to be used directly by a {@link module:core/context~Context}.\n *\n * @static\n * @readonly\n * @member {Boolean} module:core/plugin~PluginInterface.isContextPlugin\n */\n\n/**\n * An array of loaded plugins.\n *\n * @typedef {Array.<module:core/plugin~PluginInterface>} module:core/plugin~LoadedPlugins\n */\n\nexport type LoadedPlugins = Array<PluginInterface>;\n\n// Helper function that forces plugin to be disabled.\nfunction forceDisable( evt: EventInfo<string, boolean> ) {\n\tevt.return = false;\n\tevt.stop();\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/command\n */\n\nimport {\n\tObservableMixin,\n\ttype EventInfo,\n\ttype ObservableChangeEvent,\n\ttype DecoratedMethodEvent,\n\ttype ObservableSetEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\n\n/**\n * Base class for the CKEditor commands.\n *\n * Commands are the main way to manipulate the editor contents and state. They are mostly used by UI elements (or by other\n * commands) to make changes in the model. Commands are available in every part of the code that has access to\n * the {@link module:core/editor/editor~Editor editor} instance.\n *\n * Instances of registered commands can be retrieved from {@link module:core/editor/editor~Editor#commands `editor.commands`}.\n * The easiest way to execute a command is through {@link module:core/editor/editor~Editor#execute `editor.execute()`}.\n *\n * By default, commands are disabled when the editor is in the {@link module:core/editor/editor~Editor#isReadOnly read-only} mode\n * but commands with the {@link module:core/command~Command#affectsData `affectsData`} flag set to `false` will not be disabled.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class Command extends ObservableMixin() {\n\tpublic readonly editor: Editor;\n\n\tdeclare public value: unknown;\n\tdeclare public isEnabled: boolean;\n\n\tprivate _affectsData: boolean;\n\tprivate readonly _disableStack: Set<string>;\n\n\t/**\n\t * Creates a new `Command` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor on which this command will be used.\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The editor on which this command will be used.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/editor/editor~Editor}\n\t\t */\n\t\tthis.editor = editor;\n\n\t\t/**\n\t\t * The value of the command. A given command class should define what it represents for it.\n\t\t *\n\t\t * For example, the `'bold'` command's value indicates whether the selection starts in a bolded text.\n\t\t * And the value of the `'link'` command may be an object with link details.\n\t\t *\n\t\t * It is possible for a command to have no value (e.g. for stateless actions such as `'uploadImage'`).\n\t\t *\n\t\t * A given command class should control this value by overriding the {@link #refresh `refresh()`} method.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member #value\n\t\t */\n\t\tthis.set( 'value', undefined );\n\n\t\t/**\n\t\t * Flag indicating whether a command is enabled or disabled.\n\t\t * A disabled command will do nothing when executed.\n\t\t *\n\t\t * A given command class should control this value by overriding the {@link #refresh `refresh()`} method.\n\t\t *\n\t\t * It is possible to disable a command \"from outside\". For instance, in your integration you may want to disable\n\t\t * a certain set of commands for the time being. To do that, you can use the fact that `isEnabled` is observable\n\t\t * and it fires the `set:isEnabled` event every time anyone tries to modify its value:\n\t\t *\n\t\t *\t\tfunction disableCommand( cmd ) {\n\t\t *\t\t\tcmd.on( 'set:isEnabled', forceDisable, { priority: 'highest' } );\n\t\t *\n\t\t *\t\t\tcmd.isEnabled = false;\n\t\t *\n\t\t *\t\t\t// Make it possible to enable the command again.\n\t\t *\t\t\treturn () => {\n\t\t *\t\t\t\tcmd.off( 'set:isEnabled', forceDisable );\n\t\t *\t\t\t\tcmd.refresh();\n\t\t *\t\t\t};\n\t\t *\n\t\t *\t\t\tfunction forceDisable( evt ) {\n\t\t *\t\t\t\tevt.return = false;\n\t\t *\t\t\t\tevt.stop();\n\t\t *\t\t\t}\n\t\t *\t\t}\n\t\t *\n\t\t *\t\t// Usage:\n\t\t *\n\t\t *\t\t// Disabling the command.\n\t\t *\t\tconst enableBold = disableCommand( editor.commands.get( 'bold' ) );\n\t\t *\n\t\t *\t\t// Enabling the command again.\n\t\t *\t\tenableBold();\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #isEnabled\n\t\t */\n\t\tthis.set( 'isEnabled', false );\n\n\t\t/**\n\t\t * A flag indicating whether a command execution changes the editor data or not.\n\t\t *\n\t\t * Commands with `affectsData` set to `false` will not be automatically disabled in\n\t\t * the {@link module:core/editor/editor~Editor#isReadOnly read-only mode} and\n\t\t * {@glink features/read-only#related-features other editor modes} with restricted user write permissions.\n\t\t *\n\t\t * **Note:** You do not have to set it for your every command. It is `true` by default.\n\t\t *\n\t\t * @readonly\n\t\t * @default true\n\t\t * @member {Boolean} #affectsData\n\t\t */\n\t\tthis._affectsData = true;\n\n\t\t/**\n\t\t * Holds identifiers for {@link #forceDisabled} mechanism.\n\t\t *\n\t\t * @type {Set.<String>}\n\t\t * @private\n\t\t */\n\t\tthis._disableStack = new Set();\n\n\t\tthis.decorate( 'execute' );\n\n\t\t// By default every command is refreshed when changes are applied to the model.\n\t\tthis.listenTo( this.editor.model.document, 'change', () => {\n\t\t\tthis.refresh();\n\t\t} );\n\n\t\tthis.on<CommandExecuteEvent>( 'execute', evt => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// By default commands are disabled when the editor is in read-only mode.\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( editor, 'change:isReadOnly', ( evt, name, value ) => {\n\t\t\tif ( value && this.affectsData ) {\n\t\t\t\tthis.forceDisabled( 'readOnlyMode' );\n\t\t\t} else {\n\t\t\t\tthis.clearForceDisabled( 'readOnlyMode' );\n\t\t\t}\n\t\t} );\n\t}\n\n\tpublic get affectsData(): boolean {\n\t\treturn this._affectsData;\n\t}\n\n\tprotected set affectsData( affectsData: boolean ) {\n\t\tthis._affectsData = affectsData;\n\t}\n\n\t/**\n\t * Refreshes the command. The command should update its {@link #isEnabled} and {@link #value} properties\n\t * in this method.\n\t *\n\t * This method is automatically called when\n\t * {@link module:engine/model/document~Document#event:change any changes are applied to the document}.\n\t */\n\tpublic refresh(): void {\n\t\tthis.isEnabled = true;\n\t}\n\n\t/**\n\t * Disables the command.\n\t *\n\t * Command may be disabled by multiple features or algorithms (at once). When disabling a command, unique id should be passed\n\t * (e.g. the feature name). The same identifier should be used when {@link #clearForceDisabled enabling back} the command.\n\t * The command becomes enabled only after all features {@link #clearForceDisabled enabled it back}.\n\t *\n\t * Disabling and enabling a command:\n\t *\n\t *\t\tcommand.isEnabled; // -> true\n\t *\t\tcommand.forceDisabled( 'MyFeature' );\n\t *\t\tcommand.isEnabled; // -> false\n\t *\t\tcommand.clearForceDisabled( 'MyFeature' );\n\t *\t\tcommand.isEnabled; // -> true\n\t *\n\t * Command disabled by multiple features:\n\t *\n\t *\t\tcommand.forceDisabled( 'MyFeature' );\n\t *\t\tcommand.forceDisabled( 'OtherFeature' );\n\t *\t\tcommand.clearForceDisabled( 'MyFeature' );\n\t *\t\tcommand.isEnabled; // -> false\n\t *\t\tcommand.clearForceDisabled( 'OtherFeature' );\n\t *\t\tcommand.isEnabled; // -> true\n\t *\n\t * Multiple disabling with the same identifier is redundant:\n\t *\n\t *\t\tcommand.forceDisabled( 'MyFeature' );\n\t *\t\tcommand.forceDisabled( 'MyFeature' );\n\t *\t\tcommand.clearForceDisabled( 'MyFeature' );\n\t *\t\tcommand.isEnabled; // -> true\n\t *\n\t * **Note:** some commands or algorithms may have more complex logic when it comes to enabling or disabling certain commands,\n\t * so the command might be still disabled after {@link #clearForceDisabled} was used.\n\t *\n\t * @param {String} id Unique identifier for disabling. Use the same id when {@link #clearForceDisabled enabling back} the command.\n\t */\n\tpublic forceDisabled( id: string ): void {\n\t\tthis._disableStack.add( id );\n\n\t\tif ( this._disableStack.size == 1 ) {\n\t\t\tthis.on<ObservableSetEvent<boolean>>( 'set:isEnabled', forceDisable, { priority: 'highest' } );\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * Clears forced disable previously set through {@link #forceDisabled}. See {@link #forceDisabled}.\n\t *\n\t * @param {String} id Unique identifier, equal to the one passed in {@link #forceDisabled} call.\n\t */\n\tpublic clearForceDisabled( id: string ): void {\n\t\tthis._disableStack.delete( id );\n\n\t\tif ( this._disableStack.size == 0 ) {\n\t\t\tthis.off( 'set:isEnabled', forceDisable );\n\t\t\tthis.refresh();\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * A command may accept parameters. They will be passed from {@link module:core/editor/editor~Editor#execute `editor.execute()`}\n\t * to the command.\n\t *\n\t * The `execute()` method will automatically abort when the command is disabled ({@link #isEnabled} is `false`).\n\t * This behavior is implemented by a high priority listener to the {@link #event:execute} event.\n\t *\n\t * In order to see how to disable a command from \"outside\" see the {@link #isEnabled} documentation.\n\t *\n\t * This method may return a value, which would be forwarded all the way down to the\n\t * {@link module:core/editor/editor~Editor#execute `editor.execute()`}.\n\t *\n\t * @fires execute\n\t */\n\tpublic execute( ...args: Array<unknown> ): unknown { return undefined; }\n\n\t/**\n\t * Destroys the command.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Event fired by the {@link #execute} method. The command action is a listener to this event so it's\n\t * possible to change/cancel the behavior of the command by listening to this event.\n\t *\n\t * See {@link module:utils/observablemixin~ObservableMixin#decorate} for more information and samples.\n\t *\n\t * **Note:** This event is fired even if command is disabled. However, it is automatically blocked\n\t * by a high priority listener in order to prevent command execution.\n\t *\n\t * @event execute\n\t */\n}\n\n// Helper function that forces command to be disabled.\nfunction forceDisable( evt: EventInfo<string, boolean> ) {\n\tevt.return = false;\n\tevt.stop();\n}\n\nexport type CommandExecuteEvent = DecoratedMethodEvent<Command, 'execute'>;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport Command from './command';\nimport type Editor from './editor/editor';\n\nimport {\n\tinsertToPriorityArray,\n\ttype PriorityString,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\n/**\n * @module core/multicommand\n */\n\n/**\n * A CKEditor command that aggregates other commands.\n *\n * This command is used to proxy multiple commands. The multi-command is enabled when\n * at least one of its registered child commands is enabled.\n * When executing a multi-command, the first enabled command with highest priority will be executed.\n *\n *\t\tconst multiCommand = new MultiCommand( editor );\n *\n *\t\tconst commandFoo = new Command( editor );\n *\t\tconst commandBar = new Command( editor );\n *\n *\t\t// Register a child command.\n *\t\tmultiCommand.registerChildCommand( commandFoo );\n *\t\t// Register a child command with a low priority.\n *\t\tmultiCommand.registerChildCommand( commandBar, { priority: 'low' } );\n *\n *\t\t// Enable one of the commands.\n *\t\tcommandBar.isEnabled = true;\n *\n *\t\tmultiCommand.execute(); // Will execute commandBar.\n *\n * @extends module:core/command~Command\n */\nexport default class MultiCommand extends Command {\n\tprivate _childCommandsDefinitions: Array<{ command: Command; priority: PriorityString }>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * Registered child commands definitions.\n\t\t *\n\t\t * @type {Array.<Object>}\n\t\t * @private\n\t\t */\n\t\tthis._childCommandsDefinitions = [];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\t// Override base command refresh(): the command's state is changed when one of child commands changes states.\n\t}\n\n\t/**\n\t * Executes the first enabled command which has the highest priority of all registered child commands.\n\t *\n\t * @returns {*} The value returned by the {@link module:core/command~Command#execute `command.execute()`}.\n\t */\n\tpublic override execute( ...args: Array<unknown> ): unknown {\n\t\tconst command = this._getFirstEnabledCommand();\n\n\t\treturn !!command && command.execute( args );\n\t}\n\n\t/**\n\t * Registers a child command.\n\t *\n\t * @param {module:core/command~Command} command\n\t * @param {Object} options An object with configuration options.\n\t * @param {module:utils/priorities~PriorityString} [options.priority='normal'] Priority of a command to register.\n\t */\n\tpublic registerChildCommand(\n\t\tcommand: Command,\n\t\toptions: { priority?: PriorityString } = {}\n\t): void {\n\t\tinsertToPriorityArray( this._childCommandsDefinitions, { command, priority: options.priority || 'normal' } );\n\n\t\t// Change multi-command enabled state when one of registered commands changes state.\n\t\tcommand.on<ObservableChangeEvent<boolean>>( 'change:isEnabled', () => this._checkEnabled() );\n\n\t\tthis._checkEnabled();\n\t}\n\n\t/**\n\t * Checks if any of child commands is enabled.\n\t *\n\t * @private\n\t */\n\tprivate _checkEnabled(): void {\n\t\tthis.isEnabled = !!this._getFirstEnabledCommand();\n\t}\n\n\t/**\n\t * Returns a first enabled command with the highest priority or `undefined` if none of them is enabled.\n\t *\n\t * @returns {module:core/command~Command|undefined}\n\t * @private\n\t */\n\tprivate _getFirstEnabledCommand(): Command | undefined {\n\t\tconst commandDefinition = this._childCommandsDefinitions.find( ( { command } ) => command.isEnabled );\n\n\t\treturn commandDefinition && commandDefinition.command;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/plugincollection\n */\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\nimport type { LoadedPlugins, PluginConstructor, PluginInterface } from './plugin';\n\n/**\n * Manages a list of CKEditor plugins, including loading, resolving dependencies and initialization.\n *\n * @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default class PluginCollection<TContext extends object> extends EmitterMixin() {\n\tprivate _context: TContext;\n\tprivate _plugins: Map<PluginConstructor<TContext> | string, PluginInterface>;\n\tprivate _availablePlugins: Map<string, PluginConstructor<TContext>>;\n\tprivate _contextPlugins: Map<PluginConstructor<TContext> | PluginInterface, PluginConstructor<TContext> | PluginInterface>;\n\n\t/**\n\t * Creates an instance of the plugin collection class.\n\t * Allows loading and initializing plugins and their dependencies.\n\t * Allows providing a list of already loaded plugins. These plugins will not be destroyed along with this collection.\n\t *\n\t * @param {module:core/editor/editor~Editor|module:core/context~Context} context\n\t * @param {Array.<Function>} [availablePlugins] Plugins (constructors) which the collection will be able to use\n\t * when {@link module:core/plugincollection~PluginCollection#init} is used with the plugin names (strings, instead of constructors).\n\t * Usually, the editor will pass its built-in plugins to the collection so they can later be\n\t * used in `config.plugins` or `config.removePlugins` by names.\n\t * @param {Iterable.<Array>} contextPlugins A list of already initialized plugins represented by a\n\t * `[ PluginConstructor, pluginInstance ]` pair.\n\t */\n\tconstructor(\n\t\tcontext: TContext,\n\t\tavailablePlugins: Iterable<PluginConstructor<TContext>> = [],\n\t\tcontextPlugins: Iterable<[ PluginConstructor<TContext>, PluginInterface ]> = []\n\t) {\n\t\tsuper();\n\n\t\t/**\n\t\t * @protected\n\t\t * @type {module:core/editor/editor~Editor|module:core/context~Context}\n\t\t */\n\t\tthis._context = context;\n\n\t\t/**\n\t\t * @protected\n\t\t * @type {Map}\n\t\t */\n\t\tthis._plugins = new Map();\n\n\t\t/**\n\t\t * A map of plugin constructors that can be retrieved by their names.\n\t\t *\n\t\t * @protected\n\t\t * @type {Map.<String|Function,Function>}\n\t\t */\n\t\tthis._availablePlugins = new Map();\n\n\t\tfor ( const PluginConstructor of availablePlugins ) {\n\t\t\tif ( PluginConstructor.pluginName ) {\n\t\t\t\tthis._availablePlugins.set( PluginConstructor.pluginName, PluginConstructor );\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * Map of {@link module:core/contextplugin~ContextPlugin context plugins} which can be retrieved by their constructors or instances.\n\t\t *\n\t\t * @protected\n\t\t * @type {Map<Function,Function>}\n\t\t */\n\t\tthis._contextPlugins = new Map();\n\n\t\tfor ( const [ PluginConstructor, pluginInstance ] of contextPlugins ) {\n\t\t\tthis._contextPlugins.set( PluginConstructor, pluginInstance );\n\t\t\tthis._contextPlugins.set( pluginInstance, PluginConstructor );\n\n\t\t\t// To make it possible to require a plugin by its name.\n\t\t\tif ( PluginConstructor.pluginName ) {\n\t\t\t\tthis._availablePlugins.set( PluginConstructor.pluginName, PluginConstructor );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Returns `[ PluginConstructor, pluginInstance ]` pairs.\n\t *\n\t * @returns {Iterable.<Array>}\n\t */\n\tpublic* [ Symbol.iterator ](): IterableIterator<[ PluginConstructor<TContext>, PluginInterface ]> {\n\t\tfor ( const entry of this._plugins ) {\n\t\t\tif ( typeof entry[ 0 ] == 'function' ) {\n\t\t\t\tyield entry as any;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Gets the plugin instance by its constructor or name.\n\t *\n\t *\t\t// Check if 'Clipboard' plugin was loaded.\n\t *\t\tif ( editor.plugins.has( 'ClipboardPipeline' ) ) {\n\t *\t\t\t// Get clipboard plugin instance\n\t *\t\t\tconst clipboard = editor.plugins.get( 'ClipboardPipeline' );\n\t *\n\t *\t\t\tthis.listenTo( clipboard, 'inputTransformation', ( evt, data ) => {\n\t *\t\t\t\t// Do something on clipboard input.\n\t *\t\t\t} );\n\t *\t\t}\n\t *\n\t * **Note**: This method will throw an error if a plugin is not loaded. Use `{@link #has editor.plugins.has()}`\n\t * to check if a plugin is available.\n\t *\n\t * @param {Function|String} key The plugin constructor or {@link module:core/plugin~PluginInterface.pluginName name}.\n\t * @returns {module:core/plugin~PluginInterface}\n\t */\n\tpublic get<TConstructor extends PluginConstructor<TContext>>( key: TConstructor ): InstanceType<TConstructor>;\n\tpublic get<TName extends string>( key: TName ): PluginsMap[ TName ];\n\tpublic get( key: PluginConstructor<TContext> | string ): PluginInterface {\n\t\tconst plugin = this._plugins.get( key );\n\n\t\tif ( !plugin ) {\n\t\t\tlet pluginName = key;\n\n\t\t\tif ( typeof key == 'function' ) {\n\t\t\t\tpluginName = key.pluginName || key.name;\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * The plugin is not loaded and could not be obtained.\n\t\t\t *\n\t\t\t * Plugin classes (constructors) need to be provided to the editor and must be loaded before they can be obtained from\n\t\t\t * the plugin collection.\n\t\t\t * This is usually done in CKEditor 5 builds by setting the {@link module:core/editor/editor~Editor.builtinPlugins}\n\t\t\t * property.\n\t\t\t *\n\t\t\t * **Note**: You can use `{@link module:core/plugincollection~PluginCollection#has editor.plugins.has()}`\n\t\t\t * to check if a plugin was loaded.\n\t\t\t *\n\t\t\t * @error plugincollection-plugin-not-loaded\n\t\t\t * @param {String} plugin The name of the plugin which is not loaded.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'plugincollection-plugin-not-loaded', this._context, { plugin: pluginName } );\n\t\t}\n\n\t\treturn plugin;\n\t}\n\n\t/**\n\t * Checks if a plugin is loaded.\n\t *\n\t *\t\t// Check if the 'Clipboard' plugin was loaded.\n\t *\t\tif ( editor.plugins.has( 'ClipboardPipeline' ) ) {\n\t *\t\t\t// Now use the clipboard plugin instance:\n\t *\t\t\tconst clipboard = editor.plugins.get( 'ClipboardPipeline' );\n\t *\n\t *\t\t\t// ...\n\t *\t\t}\n\t *\n\t * @param {Function|String} key The plugin constructor or {@link module:core/plugin~PluginInterface.pluginName name}.\n\t * @returns {Boolean}\n\t */\n\tpublic has( key: PluginConstructor<TContext> | string ): boolean {\n\t\treturn this._plugins.has( key );\n\t}\n\n\t/**\n\t * Initializes a set of plugins and adds them to the collection.\n\t *\n\t * @param {Array.<Function|String>} plugins An array of {@link module:core/plugin~PluginInterface plugin constructors}\n\t * or {@link module:core/plugin~PluginInterface.pluginName plugin names}.\n\t * @param {Array.<String|Function>} [pluginsToRemove] Names of the plugins or plugin constructors\n\t * that should not be loaded (despite being specified in the `plugins` array).\n\t * @param {Array.<Function>} [pluginsSubstitutions] An array of {@link module:core/plugin~PluginInterface plugin constructors}\n\t * that will be used to replace plugins of the same names that were passed in `plugins` or that are in their dependency tree.\n\t * A useful option for replacing built-in plugins while creating tests (for mocking their APIs). Plugins that will be replaced\n\t * must follow these rules:\n\t *   * The new plugin must be a class.\n\t *   * The new plugin must be named.\n\t *   * Both plugins must not depend on other plugins.\n\t * @returns {Promise.<module:core/plugin~LoadedPlugins>} A promise which gets resolved once all plugins are loaded\n\t * and available in the collection.\n\t */\n\tpublic init(\n\t\tplugins: Array<PluginConstructor<TContext> | string>,\n\t\tpluginsToRemove: Array<PluginConstructor<TContext> | string> = [],\n\t\tpluginsSubstitutions: Array<PluginConstructor<TContext>> = []\n\t): Promise<LoadedPlugins> {\n\t\t// Plugin initialization procedure consists of 2 main steps:\n\t\t// 1) collecting all available plugin constructors,\n\t\t// 2) verification whether all required plugins can be instantiated.\n\t\t//\n\t\t// In the first step, all plugin constructors, available in the provided `plugins` array and inside\n\t\t// plugin's dependencies (from the `Plugin.requires` array), are recursively collected and added to the existing\n\t\t// `this._availablePlugins` map, but without any verification at the given moment. Performing the verification\n\t\t// at this point (during the plugin constructor searching) would cause false errors to occur, that some plugin\n\t\t// is missing but in fact it may be defined further in the array as the dependency of other plugin. After\n\t\t// traversing the entire dependency tree, it will be checked if all required \"top level\" plugins are available.\n\t\t//\n\t\t// In the second step, the list of plugins that have not been explicitly removed is traversed to get all the\n\t\t// plugin constructors to be instantiated in the correct order and to validate against some rules. Finally, if\n\t\t// no plugin is missing and no other error has been found, they all will be instantiated.\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias\n\t\tconst that = this;\n\t\tconst context = this._context;\n\n\t\tfindAvailablePluginConstructors( plugins );\n\n\t\tvalidatePlugins( plugins );\n\n\t\tconst pluginsToLoad = plugins.filter( plugin => !isPluginRemoved( plugin, pluginsToRemove ) );\n\n\t\tconst pluginConstructors = [ ...getPluginConstructors( pluginsToLoad ) ];\n\n\t\tsubstitutePlugins( pluginConstructors, pluginsSubstitutions );\n\n\t\tconst pluginInstances = loadPlugins( pluginConstructors );\n\n\t\treturn initPlugins( pluginInstances, 'init' )\n\t\t\t.then( () => initPlugins( pluginInstances, 'afterInit' ) )\n\t\t\t.then( () => pluginInstances );\n\n\t\tfunction isPluginConstructor( plugin: PluginConstructor<TContext> | string | null ): plugin is PluginConstructor<TContext> {\n\t\t\treturn typeof plugin === 'function';\n\t\t}\n\n\t\tfunction isContextPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string | null\n\t\t): plugin is PluginConstructor<TContext> & { isContextPlugin: true } {\n\t\t\treturn isPluginConstructor( plugin ) && plugin.isContextPlugin;\n\t\t}\n\n\t\tfunction isPluginRemoved(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tpluginsToRemove: Array<PluginConstructor<TContext> | string>\n\t\t) {\n\t\t\treturn pluginsToRemove.some( removedPlugin => {\n\t\t\t\tif ( removedPlugin === plugin ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tif ( getPluginName( plugin ) === removedPlugin ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tif ( getPluginName( removedPlugin ) === plugin ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\t\t\t} );\n\t\t}\n\n\t\tfunction getPluginName( plugin: PluginConstructor<TContext> | string ) {\n\t\t\treturn isPluginConstructor( plugin ) ?\n\t\t\t\tplugin.pluginName || plugin.name :\n\t\t\t\tplugin;\n\t\t}\n\n\t\tfunction findAvailablePluginConstructors(\n\t\t\tplugins: Array<PluginConstructor<TContext> | string>,\n\t\t\tprocessed = new Set<PluginConstructor<TContext>>()\n\t\t) {\n\t\t\tplugins.forEach( plugin => {\n\t\t\t\tif ( !isPluginConstructor( plugin ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tif ( processed.has( plugin ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tprocessed.add( plugin );\n\n\t\t\t\tif ( plugin.pluginName && !that._availablePlugins.has( plugin.pluginName ) ) {\n\t\t\t\t\tthat._availablePlugins.set( plugin.pluginName, plugin );\n\t\t\t\t}\n\n\t\t\t\tif ( plugin.requires ) {\n\t\t\t\t\tfindAvailablePluginConstructors( plugin.requires, processed );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\tfunction getPluginConstructors(\n\t\t\tplugins: Array<PluginConstructor<TContext> | string>,\n\t\t\tprocessed = new Set<PluginConstructor<TContext>>()\n\t\t) {\n\t\t\treturn plugins\n\t\t\t\t.map( plugin => {\n\t\t\t\t\treturn isPluginConstructor( plugin ) ?\n\t\t\t\t\t\tplugin :\n\t\t\t\t\t\tthat._availablePlugins.get( plugin )!;\n\t\t\t\t} )\n\t\t\t\t.reduce( ( result, plugin ) => {\n\t\t\t\t\tif ( processed.has( plugin ) ) {\n\t\t\t\t\t\treturn result;\n\t\t\t\t\t}\n\n\t\t\t\t\tprocessed.add( plugin );\n\n\t\t\t\t\tif ( plugin.requires ) {\n\t\t\t\t\t\tvalidatePlugins( plugin.requires, plugin );\n\n\t\t\t\t\t\tgetPluginConstructors( plugin.requires, processed ).forEach( plugin => result.add( plugin ) );\n\t\t\t\t\t}\n\n\t\t\t\t\treturn result.add( plugin );\n\t\t\t\t}, new Set<PluginConstructor<TContext>>() );\n\t\t}\n\n\t\tfunction validatePlugins(\n\t\t\tplugins: Array<PluginConstructor<TContext> | string>,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null = null\n\t\t) {\n\t\t\tplugins\n\t\t\t\t.map( plugin => {\n\t\t\t\t\treturn isPluginConstructor( plugin ) ?\n\t\t\t\t\t\tplugin :\n\t\t\t\t\t\tthat._availablePlugins.get( plugin ) || plugin;\n\t\t\t\t} )\n\t\t\t\t.forEach( plugin => {\n\t\t\t\t\tcheckMissingPlugin( plugin, parentPluginConstructor );\n\t\t\t\t\tcheckContextPlugin( plugin, parentPluginConstructor );\n\t\t\t\t\tcheckRemovedPlugin( plugin, parentPluginConstructor );\n\t\t\t\t} );\n\t\t}\n\n\t\tfunction checkMissingPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null\n\t\t) {\n\t\t\tif ( isPluginConstructor( plugin ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( parentPluginConstructor ) {\n\t\t\t\t/**\n\t\t\t\t * A required \"soft\" dependency was not found on the plugin list.\n\t\t\t\t *\n\t\t\t\t * When configuring the editor, either prior to building (via\n\t\t\t\t * {@link module:core/editor/editor~Editor.builtinPlugins `Editor.builtinPlugins`}) or when\n\t\t\t\t * creating a new instance of the editor (e.g. via\n\t\t\t\t * {@link module:core/editor/editorconfig~EditorConfig#plugins `config.plugins`}), you need to provide\n\t\t\t\t * some of the dependencies for other plugins that you used.\n\t\t\t\t *\n\t\t\t\t * This error is thrown when one of these dependencies was not provided. The name of the missing plugin\n\t\t\t\t * can be found in `missingPlugin` and the plugin that required it in `requiredBy`.\n\t\t\t\t *\n\t\t\t\t * In order to resolve it, you need to import the missing plugin and add it to the\n\t\t\t\t * current list of plugins (`Editor.builtinPlugins` or `config.plugins`/`config.extraPlugins`).\n\t\t\t\t *\n\t\t\t\t * Soft requirements were introduced in version 26.0.0. If you happen to stumble upon this error\n\t\t\t\t * when upgrading to version 26.0.0, read also the\n\t\t\t\t * {@glink updating/migration-to-26 Migration to 26.0.0} guide.\n\t\t\t\t *\n\t\t\t\t * @error plugincollection-soft-required\n\t\t\t\t * @param {String} missingPlugin The name of the required plugin.\n\t\t\t\t * @param {String} requiredBy The name of the plugin that requires the other plugin.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'plugincollection-soft-required',\n\t\t\t\t\tcontext,\n\t\t\t\t\t{ missingPlugin: plugin, requiredBy: getPluginName( parentPluginConstructor ) }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * A plugin is not available and could not be loaded.\n\t\t\t *\n\t\t\t * Plugin classes (constructors) need to be provided to the editor before they can be loaded by name.\n\t\t\t * This is usually done in CKEditor 5 builds by setting the {@link module:core/editor/editor~Editor.builtinPlugins}\n\t\t\t * property.\n\t\t\t *\n\t\t\t * **If you see this warning when using one of the {@glink installation/getting-started/predefined-builds\n\t\t\t * CKEditor 5 Builds}**,\n\t\t\t * it means that you try to enable a plugin which was not included in that build. This may be due to a typo\n\t\t\t * in the plugin name or simply because that plugin is not a part of this build. In the latter scenario,\n\t\t\t * read more about {@glink installation/getting-started/quick-start custom builds}.\n\t\t\t *\n\t\t\t * **If you see this warning when using one of the editor creators directly** (not a build), then it means\n\t\t\t * that you tried loading plugins by name. However, unlike CKEditor 4, CKEditor 5 does not implement a \"plugin loader\".\n\t\t\t * This means that CKEditor 5 does not know where to load the plugin modules from. Therefore, you need to\n\t\t\t * provide each plugin through a reference (as a constructor function). Check out the examples in\n\t\t\t * {@glink installation/advanced/alternative-setups/integrating-from-source \"Building from source\"}.\n\t\t\t *\n\t\t\t * @error plugincollection-plugin-not-found\n\t\t\t * @param {String} plugin The name of the plugin which could not be loaded.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-plugin-not-found',\n\t\t\t\tcontext,\n\t\t\t\t{ plugin }\n\t\t\t);\n\t\t}\n\n\t\tfunction checkContextPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null\n\t\t) {\n\t\t\tif ( !isContextPlugin( parentPluginConstructor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( isContextPlugin( plugin ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * If a plugin is a context plugin, all plugins it requires should also be context plugins\n\t\t\t * instead of plugins. In other words, if one plugin can be used in the context,\n\t\t\t * all its requirements should also be ready to be used in the context. Note that the context\n\t\t\t * provides only a part of the API provided by the editor. If one plugin needs a full\n\t\t\t * editor API, all plugins which require it are considered as plugins that need a full\n\t\t\t * editor API.\n\t\t\t *\n\t\t\t * @error plugincollection-context-required\n\t\t\t * @param {String} plugin The name of the required plugin.\n\t\t\t * @param {String} requiredBy The name of the parent plugin.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-context-required',\n\t\t\t\tcontext,\n\t\t\t\t{ plugin: getPluginName( plugin ), requiredBy: getPluginName( parentPluginConstructor ) }\n\t\t\t);\n\t\t}\n\n\t\tfunction checkRemovedPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null\n\t\t) {\n\t\t\tif ( !parentPluginConstructor ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !isPluginRemoved( plugin, pluginsToRemove ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * Cannot load a plugin because one of its dependencies is listed in the `removePlugins` option.\n\t\t\t *\n\t\t\t * @error plugincollection-required\n\t\t\t * @param {String} plugin The name of the required plugin.\n\t\t\t * @param {String} requiredBy The name of the parent plugin.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-required',\n\t\t\t\tcontext,\n\t\t\t\t{ plugin: getPluginName( plugin ), requiredBy: getPluginName( parentPluginConstructor ) }\n\t\t\t);\n\t\t}\n\n\t\tfunction loadPlugins( pluginConstructors: Array<PluginConstructor<TContext>> ) {\n\t\t\treturn pluginConstructors.map( PluginConstructor => {\n\t\t\t\tlet pluginInstance = that._contextPlugins.get( PluginConstructor ) as ( PluginInterface | undefined );\n\n\t\t\t\tpluginInstance = pluginInstance || new PluginConstructor( context );\n\n\t\t\t\tthat._add( PluginConstructor, pluginInstance );\n\n\t\t\t\treturn pluginInstance;\n\t\t\t} );\n\t\t}\n\n\t\tfunction initPlugins( pluginInstances: Array<PluginInterface>, method: 'init' | 'afterInit' ) {\n\t\t\treturn pluginInstances.reduce<Promise<unknown>>( ( promise, plugin ) => {\n\t\t\t\tif ( !plugin[ method ] ) {\n\t\t\t\t\treturn promise;\n\t\t\t\t}\n\n\t\t\t\tif ( that._contextPlugins.has( plugin ) ) {\n\t\t\t\t\treturn promise;\n\t\t\t\t}\n\n\t\t\t\treturn promise.then( plugin[ method ]!.bind( plugin ) );\n\t\t\t}, Promise.resolve() );\n\t\t}\n\n\t\t// Replaces plugin constructors with the specified set of plugins.\n\t\t//\n\t\t// @param {Array.<Function>} pluginConstructors\n\t\t// @param {Array.<Function>} pluginsSubstitutions\n\t\tfunction substitutePlugins(\n\t\t\tpluginConstructors: Array<PluginConstructor<TContext>>,\n\t\t\tpluginsSubstitutions: Array<PluginConstructor<TContext>>\n\t\t) {\n\t\t\tfor ( const pluginItem of pluginsSubstitutions ) {\n\t\t\t\tif ( typeof pluginItem != 'function' ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The plugin replacing an existing plugin must be a function.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-replace-plugin-invalid-type\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-replace-plugin-invalid-type', null, { pluginItem } );\n\t\t\t\t}\n\t\t\t\tconst pluginName = pluginItem.pluginName;\n\n\t\t\t\tif ( !pluginName ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The plugin replacing an existing plugin must have a name.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-replace-plugin-missing-name\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-replace-plugin-missing-name', null, { pluginItem } );\n\t\t\t\t}\n\n\t\t\t\tif ( pluginItem.requires && pluginItem.requires.length ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The plugin replacing an existing plugin cannot depend on other plugins.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-plugin-for-replacing-cannot-have-dependencies\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-plugin-for-replacing-cannot-have-dependencies', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tconst pluginToReplace = that._availablePlugins.get( pluginName );\n\n\t\t\t\tif ( !pluginToReplace ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The replaced plugin does not exist in the\n\t\t\t\t\t * {@link module:core/plugincollection~PluginCollection available plugins} collection.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-plugin-for-replacing-not-exist\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-plugin-for-replacing-not-exist', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tconst indexInPluginConstructors = pluginConstructors.indexOf( pluginToReplace );\n\n\t\t\t\tif ( indexInPluginConstructors === -1 ) {\n\t\t\t\t\t// The Context feature can substitute plugins as well.\n\t\t\t\t\t// It may happen that the editor will be created with the given context, where the plugin for substitute\n\t\t\t\t\t// was already replaced. In such a case, we don't want to do it again.\n\t\t\t\t\tif ( that._contextPlugins.has( pluginToReplace ) ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\t/**\n\t\t\t\t\t * The replaced plugin will not be loaded so it cannot be replaced.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-plugin-for-replacing-not-loaded\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-plugin-for-replacing-not-loaded', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tif ( pluginToReplace.requires && pluginToReplace.requires.length ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The replaced plugin cannot depend on other plugins.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-replaced-plugin-cannot-have-dependencies\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-replaced-plugin-cannot-have-dependencies', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tpluginConstructors.splice( indexInPluginConstructors, 1, pluginItem );\n\t\t\t\tthat._availablePlugins.set( pluginName, pluginItem );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Destroys all loaded plugins.\n\t *\n\t * @returns {Promise}\n\t */\n\tpublic destroy(): Promise<unknown> {\n\t\tconst promises: Array<unknown> = [];\n\n\t\tfor ( const [ , pluginInstance ] of this ) {\n\t\t\tif ( typeof pluginInstance.destroy == 'function' && !this._contextPlugins.has( pluginInstance ) ) {\n\t\t\t\tpromises.push( pluginInstance.destroy() );\n\t\t\t}\n\t\t}\n\n\t\treturn Promise.all( promises );\n\t}\n\n\t/**\n\t * Adds the plugin to the collection. Exposed mainly for testing purposes.\n\t *\n\t * @protected\n\t * @param {Function} PluginConstructor The plugin constructor.\n\t * @param {module:core/plugin~PluginInterface} plugin The instance of the plugin.\n\t */\n\tprivate _add( PluginConstructor: PluginConstructor<TContext>, plugin: PluginInterface ) {\n\t\tthis._plugins.set( PluginConstructor, plugin );\n\n\t\tconst pluginName = PluginConstructor.pluginName;\n\n\t\tif ( !pluginName ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( this._plugins.has( pluginName ) ) {\n\t\t\t/**\n\t\t\t * Two plugins with the same {@link module:core/plugin~PluginInterface.pluginName} were loaded.\n\t\t\t * This will lead to runtime conflicts between these plugins.\n\t\t\t *\n\t\t\t * In practice, this warning usually means that new plugins were added to an existing CKEditor 5 build.\n\t\t\t * Plugins should always be added to a source version of the editor (`@ckeditor/ckeditor5-editor-*`),\n\t\t\t * not to an editor imported from one of the `@ckeditor/ckeditor5-build-*` packages.\n\t\t\t *\n\t\t\t * Check your import paths and the list of plugins passed to\n\t\t\t * {@link module:core/editor/editor~Editor.create `Editor.create()`}\n\t\t\t * or specified in {@link module:core/editor/editor~Editor.builtinPlugins `Editor.builtinPlugins`}.\n\t\t\t *\n\t\t\t * The second option is that your `node_modules/` directory contains duplicated versions of the same\n\t\t\t * CKEditor 5 packages. Normally, on clean installations, npm deduplicates packages in `node_modules/`, so\n\t\t\t * it may be enough to call `rm -rf node_modules && npm i`. However, if you installed conflicting versions\n\t\t\t * of some packages, their dependencies may need to be installed in more than one version which may lead to this\n\t\t\t * warning.\n\t\t\t *\n\t\t\t * Technically speaking, this error occurs because after adding a plugin to an existing editor build\n\t\t\t * the dependencies of this plugin are being duplicated.\n\t\t\t * They are already built into that editor build and now get added for the second time as dependencies\n\t\t\t * of the plugin you are installing.\n\t\t\t *\n\t\t\t * Read more about {@glink installation/getting-started/installing-plugins installing plugins}.\n\t\t\t *\n\t\t\t * @error plugincollection-plugin-name-conflict\n\t\t\t * @param {String} pluginName The duplicated plugin name.\n\t\t\t * @param {Function} plugin1 The first plugin constructor.\n\t\t\t * @param {Function} plugin2 The second plugin constructor.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-plugin-name-conflict',\n\t\t\t\tnull,\n\t\t\t\t{ pluginName, plugin1: this._plugins.get( pluginName )!.constructor, plugin2: PluginConstructor }\n\t\t\t);\n\t\t}\n\n\t\tthis._plugins.set( pluginName, plugin );\n\t}\n}\n\nexport interface PluginsMap {\n\t[ name: string ]: PluginInterface;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/context\n */\n\nimport {\n\tConfig,\n\tCollection,\n\tCKEditorError,\n\tLocale,\n\ttype LocaleTranslate\n} from '@ckeditor/ckeditor5-utils';\n\nimport PluginCollection from './plugincollection';\nimport type Editor from './editor/editor';\nimport type { LoadedPlugins, PluginConstructor } from './plugin';\nimport type { EditorConfig } from './editor/editorconfig';\n\n/**\n * Provides a common, higher-level environment for solutions that use multiple {@link module:core/editor/editor~Editor editors}\n * or plugins that work outside the editor. Use it instead of {@link module:core/editor/editor~Editor.create `Editor.create()`}\n * in advanced application integrations.\n *\n * All configuration options passed to a context will be used as default options for the editor instances initialized in that context.\n *\n * {@link module:core/contextplugin~ContextPlugin Context plugins} passed to a context instance will be shared among all\n * editor instances initialized in this context. These will be the same plugin instances for all the editors.\n *\n * **Note:** The context can only be initialized with {@link module:core/contextplugin~ContextPlugin context plugins}\n * (e.g. [comments](https://ckeditor.com/collaboration/comments/)). Regular {@link module:core/plugin~Plugin plugins} require an\n * editor instance to work and cannot be added to a context.\n *\n * **Note:** You can add a context plugin to an editor instance, though.\n *\n * If you are using multiple editor instances on one page and use any context plugins, create a context to share the configuration and\n * plugins among these editors. Some plugins will use the information about all existing editors to better integrate between them.\n *\n * If you are using plugins that do not require an editor to work (e.g. [comments](https://ckeditor.com/collaboration/comments/)),\n * enable and configure them using the context.\n *\n * If you are using only a single editor on each page, use {@link module:core/editor/editor~Editor.create `Editor.create()`} instead.\n * In such a case, a context instance will be created by the editor instance in a transparent way.\n *\n * See {@link module:core/context~Context.create `Context.create()`} for usage examples.\n */\nexport default class Context {\n\tpublic readonly config: Config<ContextConfig>;\n\tpublic readonly plugins: PluginCollection<Context | Editor>;\n\tpublic readonly locale: Locale;\n\tpublic readonly t: LocaleTranslate;\n\tpublic readonly editors: Collection<Editor>;\n\n\tpublic static defaultConfig: ContextConfig;\n\tpublic static builtinPlugins: Array<PluginConstructor<Context | Editor>>;\n\n\tprivate _contextOwner: Editor | null;\n\n\t/**\n\t * Creates a context instance with a given configuration.\n\t *\n\t * Usually not to be used directly. See the static {@link module:core/context~Context.create `create()`} method.\n\t *\n\t * @param {Object} [config={}] The context configuration.\n\t */\n\tconstructor( config?: ContextConfig ) {\n\t\t/**\n\t\t * Stores all the configurations specific to this context instance.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:utils/config~Config}\n\t\t */\n\t\tthis.config = new Config<ContextConfig>( config, ( this.constructor as typeof Context ).defaultConfig );\n\n\t\tconst availablePlugins = ( this.constructor as typeof Context ).builtinPlugins;\n\n\t\tthis.config.define( 'plugins', availablePlugins );\n\n\t\t/**\n\t\t * The plugins loaded and in use by this context instance.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:core/plugincollection~PluginCollection}\n\t\t */\n\t\tthis.plugins = new PluginCollection<Context | Editor>( this, availablePlugins );\n\n\t\tconst languageConfig = this.config.get( 'language' ) || {};\n\n\t\t/**\n\t\t * @readonly\n\t\t * @type {module:utils/locale~Locale}\n\t\t */\n\t\tthis.locale = new Locale( {\n\t\t\tuiLanguage: typeof languageConfig === 'string' ? languageConfig : languageConfig.ui,\n\t\t\tcontentLanguage: this.config.get( 'language.content' )\n\t\t} );\n\n\t\t/**\n\t\t * Shorthand for {@link module:utils/locale~Locale#t}.\n\t\t *\n\t\t * @see module:utils/locale~Locale#t\n\t\t * @method #t\n\t\t */\n\t\tthis.t = this.locale.t;\n\n\t\t/**\n\t\t * A list of editors that this context instance is injected to.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:utils/collection~Collection}\n\t\t */\n\t\tthis.editors = new Collection<Editor>();\n\n\t\t/**\n\t\t * Reference to the editor which created the context.\n\t\t * Null when the context was created outside of the editor.\n\t\t *\n\t\t * It is used to destroy the context when removing the editor that has created the context.\n\t\t *\n\t\t * @private\n\t\t * @type {module:core/editor/editor~Editor|null}\n\t\t */\n\t\tthis._contextOwner = null;\n\t}\n\n\t/**\n\t * Loads and initializes plugins specified in the configuration.\n\t *\n\t * @returns {Promise.<module:core/plugin~LoadedPlugins>} A promise which resolves\n\t * once the initialization is completed, providing an array of loaded plugins.\n\t */\n\tpublic initPlugins(): Promise<LoadedPlugins> {\n\t\tconst plugins = this.config.get( 'plugins' ) || [];\n\t\tconst substitutePlugins = this.config.get( 'substitutePlugins' ) || [];\n\n\t\t// Plugins for substitution should be checked as well.\n\t\tfor ( const Plugin of plugins.concat( substitutePlugins ) ) {\n\t\t\tif ( typeof Plugin != 'function' ) {\n\t\t\t\t/**\n\t\t\t\t * Only a constructor function is allowed as a {@link module:core/contextplugin~ContextPlugin context plugin}.\n\t\t\t\t *\n\t\t\t\t * @error context-initplugins-constructor-only\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'context-initplugins-constructor-only',\n\t\t\t\t\tnull,\n\t\t\t\t\t{ Plugin }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tif ( Plugin.isContextPlugin !== true ) {\n\t\t\t\t/**\n\t\t\t\t * Only a plugin marked as a {@link module:core/contextplugin~ContextPlugin.isContextPlugin context plugin}\n\t\t\t\t * is allowed to be used with a context.\n\t\t\t\t *\n\t\t\t\t * @error context-initplugins-invalid-plugin\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'context-initplugins-invalid-plugin',\n\t\t\t\t\tnull,\n\t\t\t\t\t{ Plugin }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\n\t\treturn this.plugins.init( plugins, [], substitutePlugins );\n\t}\n\n\t/**\n\t * Destroys the context instance and all editors used with the context,\n\t * releasing all resources used by the context.\n\t *\n\t * @returns {Promise} A promise that resolves once the context instance is fully destroyed.\n\t */\n\tpublic destroy(): Promise<unknown> {\n\t\treturn Promise.all( Array.from( this.editors, editor => editor.destroy() ) )\n\t\t\t.then( () => this.plugins.destroy() );\n\t}\n\n\t/**\n\t * Adds a reference to the editor which is used with this context.\n\t *\n\t * When the given editor has created the context, the reference to this editor will be stored\n\t * as a {@link ~Context#_contextOwner}.\n\t *\n\t * This method should only be used by the editor.\n\t *\n\t * @protected\n\t * @param {module:core/editor/editor~Editor} editor\n\t * @param {Boolean} isContextOwner Stores the given editor as a context owner.\n\t */\n\tpublic _addEditor( editor: Editor, isContextOwner: boolean ): void {\n\t\tif ( this._contextOwner ) {\n\t\t\t/**\n\t\t\t * Cannot add multiple editors to the context which is created by the editor.\n\t\t\t *\n\t\t\t * @error context-addeditor-private-context\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'context-addeditor-private-context' );\n\t\t}\n\n\t\tthis.editors.add( editor );\n\n\t\tif ( isContextOwner ) {\n\t\t\tthis._contextOwner = editor;\n\t\t}\n\t}\n\n\t/**\n\t * Removes a reference to the editor which was used with this context.\n\t * When the context was created by the given editor, the context will be destroyed.\n\t *\n\t * This method should only be used by the editor.\n\t *\n\t * @protected\n\t * @param {module:core/editor/editor~Editor} editor\n\t * @return {Promise} A promise that resolves once the editor is removed from the context or when the context was destroyed.\n\t */\n\tpublic _removeEditor( editor: Editor ): Promise<unknown> {\n\t\tif ( this.editors.has( editor ) ) {\n\t\t\tthis.editors.remove( editor );\n\t\t}\n\n\t\tif ( this._contextOwner === editor ) {\n\t\t\treturn this.destroy();\n\t\t}\n\n\t\treturn Promise.resolve();\n\t}\n\n\t/**\n\t * Returns the context configuration which will be copied to the editors created using this context.\n\t *\n\t * The configuration returned by this method has the plugins configuration removed &mdash; plugins are shared with all editors\n\t * through another mechanism.\n\t *\n\t * This method should only be used by the editor.\n\t *\n\t * @protected\n\t * @returns {Object} Configuration as a plain object.\n\t */\n\tpublic _getEditorConfig(): Partial<EditorConfig> {\n\t\tconst result: Record<string, unknown> = {};\n\n\t\tfor ( const name of this.config.names() ) {\n\t\t\tif ( ![ 'plugins', 'removePlugins', 'extraPlugins' ].includes( name ) ) {\n\t\t\t\tresult[ name ] = this.config.get( name );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Creates and initializes a new context instance.\n\t *\n\t *\t\tconst commonConfig = { ... }; // Configuration for all the plugins and editors.\n\t *\t\tconst editorPlugins = [ ... ]; // Regular plugins here.\n\t *\n\t *\t\tContext\n\t *\t\t\t.create( {\n\t *\t\t\t\t// Only context plugins here.\n\t *\t\t\t\tplugins: [ ... ],\n\t *\n\t *\t\t\t\t// Configure the language for all the editors (it cannot be overwritten).\n\t *\t\t\t\tlanguage: { ... },\n\t *\n\t *\t\t\t\t// Configuration for context plugins.\n\t *\t\t\t\tcomments: { ... },\n\t *\t\t\t\t...\n\t *\n\t *\t\t\t\t// Default configuration for editor plugins.\n\t *\t\t\t\ttoolbar: { ... },\n\t *\t\t\t\timage: { ... },\n\t *\t\t\t\t...\n\t *\t\t\t} )\n\t *\t\t\t.then( context => {\n\t *\t\t\t\tconst promises = [];\n\t *\n\t *\t\t\t\tpromises.push( ClassicEditor.create(\n\t *\t\t\t\t\tdocument.getElementById( 'editor1' ),\n\t *\t\t\t\t\t{\n\t *\t\t\t\t\t\teditorPlugins,\n\t *\t\t\t\t\t\tcontext\n\t *\t\t\t\t\t}\n\t *\t\t\t\t) );\n\t *\n\t *\t\t\t\tpromises.push( ClassicEditor.create(\n\t *\t\t\t\t\tdocument.getElementById( 'editor2' ),\n\t *\t\t\t\t\t{\n\t *\t\t\t\t\t\teditorPlugins,\n\t *\t\t\t\t\t\tcontext,\n\t *\t\t\t\t\t\ttoolbar: { ... } // You can overwrite the configuration of the context.\n\t *\t\t\t\t\t}\n\t *\t\t\t\t) );\n\t *\n\t *\t\t\t\treturn Promise.all( promises );\n\t *\t\t\t} );\n\t *\n\t * @param {Object} [config] The context configuration.\n\t * @returns {Promise} A promise resolved once the context is ready. The promise resolves with the created context instance.\n\t */\n\tpublic static create( config?: ContextConfig ): Promise<Context> {\n\t\treturn new Promise( resolve => {\n\t\t\tconst context = new this( config );\n\n\t\t\tresolve( context.initPlugins().then( () => context ) );\n\t\t} );\n\t}\n}\n\n/**\n * An array of plugins built into the `Context` class.\n *\n * It is used in CKEditor 5 builds featuring `Context` to provide a list of context plugins which are later automatically initialized\n * during the context initialization.\n *\n * They will be automatically initialized by `Context` unless `config.plugins` is passed.\n *\n *\t\t// Build some context plugins into the Context class first.\n *\t\tContext.builtinPlugins = [ FooPlugin, BarPlugin ];\n *\n *\t\t// Normally, you need to define config.plugins, but since Context.builtinPlugins was\n *\t\t// defined, now you can call create() without any configuration.\n *\t\tContext\n *\t\t\t.create()\n *\t\t\t.then( context => {\n *\t\t\t\tcontext.plugins.get( FooPlugin ); // -> An instance of the Foo plugin.\n *\t\t\t\tcontext.plugins.get( BarPlugin ); // -> An instance of the Bar plugin.\n *\t\t\t} );\n *\n * See also {@link module:core/context~Context.defaultConfig `Context.defaultConfig`}\n * and {@link module:core/editor/editor~Editor.builtinPlugins `Editor.builtinPlugins`}.\n *\n * @static\n * @member {Array.<Function>} module:core/context~Context.builtinPlugins\n */\n\n/**\n * The default configuration which is built into the `Context` class.\n *\n * It is used in CKEditor 5 builds featuring `Context` to provide the default configuration options which are later used during the\n * context initialization.\n *\n *\t\tContext.defaultConfig = {\n *\t\t\tfoo: 1,\n *\t\t\tbar: 2\n *\t\t};\n *\n *\t\tContext\n *\t\t\t.create()\n *\t\t\t.then( context => {\n *\t\t\t\tcontext.config.get( 'foo' ); // -> 1\n *\t\t\t\tcontext.config.get( 'bar' ); // -> 2\n *\t\t\t} );\n *\n *\t\t// The default options can be overridden by the configuration passed to create().\n *\t\tContext\n *\t\t\t.create( { bar: 3 } )\n *\t\t\t.then( context => {\n *\t\t\t\tcontext.config.get( 'foo' ); // -> 1\n *\t\t\t\tcontext.config.get( 'bar' ); // -> 3\n *\t\t\t} );\n *\n * See also {@link module:core/context~Context.builtinPlugins `Context.builtinPlugins`}\n * and {@link module:core/editor/editor~Editor.defaultConfig `Editor.defaultConfig`}.\n *\n * @static\n * @member {Object} module:core/context~Context.defaultConfig\n */\n\nexport type ContextConfig = {\n\tplugins?: Array<PluginConstructor<Context | Editor>>;\n\tsubstitutePlugins?: Array<PluginConstructor<Context | Editor>>;\n} & Omit<EditorConfig, 'plugins' | 'substitutePlugins' | 'removePlugins' | 'extraPlugins'>;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/contextplugin\n */\n\nimport { ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\nimport type Context from './context';\nimport type { PluginInterface } from './plugin';\n\n/**\n * The base class for {@link module:core/context~Context} plugin classes.\n *\n * A context plugin can either be initialized for an {@link module:core/editor/editor~Editor editor} or for\n * a {@link module:core/context~Context context}. In other words, it can either\n * work within one editor instance or with one or more editor instances that use a single context.\n * It is the context plugin's role to implement handling for both modes.\n *\n * There are a few rules for interaction between the editor plugins and context plugins:\n *\n * * A context plugin can require another context plugin.\n * * An {@link module:core/plugin~Plugin editor plugin} can require a context plugin.\n * * A context plugin MUST NOT require an {@link module:core/plugin~Plugin editor plugin}.\n *\n * @implements module:core/plugin~PluginInterface\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class ContextPlugin extends ObservableMixin() implements PluginInterface {\n\tpublic readonly context: Context | Editor;\n\n\t/**\n\t * Creates a new plugin instance.\n\t *\n\t * @param {module:core/context~Context|module:core/editor/editor~Editor} context\n\t */\n\tconstructor( context: Context | Editor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The context instance.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:core/context~Context|module:core/editor/editor~Editor}\n\t\t */\n\t\tthis.context = context;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get isContextPlugin(): true {\n\t\treturn true;\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./placeholder.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/placeholder\n */\n\nimport '../../theme/placeholder.css';\n\nimport type Document from './document';\nimport type DowncastWriter from './downcastwriter';\nimport type Element from './element';\nimport type View from './view';\n\nimport type { ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\n// Each document stores information about its placeholder elements and check functions.\nconst documentPlaceholders: WeakMap<Document, Map<Element, PlaceholderConfig>> = new WeakMap();\n\n/**\n * A helper that enables a placeholder on the provided view element (also updates its visibility).\n * The placeholder is a CSS pseudo–element (with a text content) attached to the element.\n *\n * To change the placeholder text, simply call this method again with new options.\n *\n * To disable the placeholder, use {@link module:engine/view/placeholder~disablePlaceholder `disablePlaceholder()`} helper.\n *\n * @param {Object} [options] Configuration options of the placeholder.\n * @param {module:engine/view/view~View} options.view Editing view instance.\n * @param {module:engine/view/element~Element} options.element Element that will gain a placeholder.\n * See `options.isDirectHost` to learn more.\n * @param {String} options.text Placeholder text.\n * @param {Boolean} [options.isDirectHost=true] If set `false`, the placeholder will not be enabled directly\n * in the passed `element` but in one of its children (selected automatically, i.e. a first empty child element).\n * Useful when attaching placeholders to elements that can host other elements (not just text), for instance,\n * editable root elements.\n * @param {Boolean} [options.keepOnFocus=false] If set `true`, the placeholder stay visible when the host element is focused.\n */\nexport function enablePlaceholder( options: {\n\tview: View;\n\telement: Element;\n\ttext: string;\n\tisDirectHost?: boolean;\n\tkeepOnFocus?: boolean;\n} ): void {\n\tconst { view, element, text, isDirectHost = true, keepOnFocus = false } = options;\n\tconst doc = view.document;\n\n\t// Use a single a single post fixer per—document to update all placeholders.\n\tif ( !documentPlaceholders.has( doc ) ) {\n\t\tdocumentPlaceholders.set( doc, new Map() );\n\n\t\t// If a post-fixer callback makes a change, it should return `true` so other post–fixers\n\t\t// can re–evaluate the document again.\n\t\tdoc.registerPostFixer( writer => updateDocumentPlaceholders( doc, writer ) );\n\n\t\t// Update placeholders on isComposing state change since rendering is disabled while in composition mode.\n\t\tdoc.on<ObservableChangeEvent>( 'change:isComposing', () => {\n\t\t\tview.change( writer => updateDocumentPlaceholders( doc, writer ) );\n\t\t}, { priority: 'high' } );\n\t}\n\n\t// Store information about the element placeholder under its document.\n\tdocumentPlaceholders.get( doc )!.set( element, {\n\t\ttext,\n\t\tisDirectHost,\n\t\tkeepOnFocus,\n\t\thostElement: isDirectHost ? element : null\n\t} );\n\n\t// Update the placeholders right away.\n\tview.change( writer => updateDocumentPlaceholders( doc, writer ) );\n}\n\n/**\n * Disables the placeholder functionality from a given element.\n *\n * See {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} to learn more.\n *\n * @param {module:engine/view/view~View} view\n * @param {module:engine/view/element~Element} element\n */\nexport function disablePlaceholder( view: View, element: Element ): void {\n\tconst doc = element.document;\n\n\tview.change( writer => {\n\t\tif ( !documentPlaceholders.has( doc ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst placeholders = documentPlaceholders.get( doc )!;\n\t\tconst config = placeholders.get( element )!;\n\n\t\twriter.removeAttribute( 'data-placeholder', config.hostElement! );\n\t\thidePlaceholder( writer, config.hostElement! );\n\n\t\tplaceholders.delete( element );\n\t} );\n}\n\n/**\n * Shows a placeholder in the provided element by changing related attributes and CSS classes.\n *\n * **Note**: This helper will not update the placeholder visibility nor manage the\n * it in any way in the future. What it does is a one–time state change of an element. Use\n * {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} and\n * {@link module:engine/view/placeholder~disablePlaceholder `disablePlaceholder()`} for full\n * placeholder functionality.\n *\n * **Note**: This helper will blindly show the placeholder directly in the root editable element if\n * one is passed, which could result in a visual clash if the editable element has some children\n * (for instance, an empty paragraph). Use {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`}\n * in that case or make sure the correct element is passed to the helper.\n *\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @param {module:engine/view/element~Element} element\n * @returns {Boolean} `true`, if any changes were made to the `element`.\n */\nexport function showPlaceholder( writer: DowncastWriter, element: Element ): boolean {\n\tif ( !element.hasClass( 'ck-placeholder' ) ) {\n\t\twriter.addClass( 'ck-placeholder', element );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Hides a placeholder in the element by changing related attributes and CSS classes.\n *\n * **Note**: This helper will not update the placeholder visibility nor manage the\n * it in any way in the future. What it does is a one–time state change of an element. Use\n * {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} and\n * {@link module:engine/view/placeholder~disablePlaceholder `disablePlaceholder()`} for full\n * placeholder functionality.\n *\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @param {module:engine/view/element~Element} element\n * @returns {Boolean} `true`, if any changes were made to the `element`.\n */\nexport function hidePlaceholder( writer: DowncastWriter, element: Element ): boolean {\n\tif ( element.hasClass( 'ck-placeholder' ) ) {\n\t\twriter.removeClass( 'ck-placeholder', element );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Checks if a placeholder should be displayed in the element.\n *\n * **Note**: This helper will blindly check the possibility of showing a placeholder directly in the\n * root editable element if one is passed, which may not be the expected result. If an element can\n * host other elements (not just text), most likely one of its children should be checked instead\n * because it will be the final host for the placeholder. Use\n * {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} in that case or make\n * sure the correct element is passed to the helper.\n *\n * @param {module:engine/view/element~Element} element Element that holds the placeholder.\n * @param {Boolean} keepOnFocus Focusing the element will keep the placeholder visible.\n * @returns {Boolean}\n */\nexport function needsPlaceholder( element: Element, keepOnFocus: boolean ): boolean {\n\tif ( !element.isAttached() ) {\n\t\treturn false;\n\t}\n\n\t// Anything but uiElement(s) counts as content.\n\tconst hasContent = Array.from( element.getChildren() )\n\t\t.some( element => !element.is( 'uiElement' ) );\n\n\tif ( hasContent ) {\n\t\treturn false;\n\t}\n\n\tconst doc = element.document;\n\tconst viewSelection = doc.selection;\n\tconst selectionAnchor = viewSelection.anchor;\n\n\tif ( doc.isComposing && selectionAnchor && selectionAnchor.parent === element ) {\n\t\treturn false;\n\t}\n\n\t// Skip the focus check and make the placeholder visible already regardless of document focus state.\n\tif ( keepOnFocus ) {\n\t\treturn true;\n\t}\n\n\t// If the document is blurred.\n\tif ( !doc.isFocused ) {\n\t\treturn true;\n\t}\n\n\t// If document is focused and the element is empty but the selection is not anchored inside it.\n\treturn !!selectionAnchor && selectionAnchor.parent !== element;\n}\n\n// Updates all placeholders associated with a document in a post–fixer callback.\n//\n// @private\n// @param { module:engine/view/document~Document} doc\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @returns {Boolean} True if any changes were made to the view document.\nfunction updateDocumentPlaceholders( doc: Document, writer: DowncastWriter ): boolean {\n\tconst placeholders = documentPlaceholders.get( doc )!;\n\tconst directHostElements: Array<Element> = [];\n\tlet wasViewModified = false;\n\n\t// First set placeholders on the direct hosts.\n\tfor ( const [ element, config ] of placeholders ) {\n\t\tif ( config.isDirectHost ) {\n\t\t\tdirectHostElements.push( element );\n\n\t\t\tif ( updatePlaceholder( writer, element, config ) ) {\n\t\t\t\twasViewModified = true;\n\t\t\t}\n\t\t}\n\t}\n\n\t// Then set placeholders on the indirect hosts but only on those that does not already have an direct host placeholder.\n\tfor ( const [ element, config ] of placeholders ) {\n\t\tif ( config.isDirectHost ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst hostElement = getChildPlaceholderHostSubstitute( element );\n\n\t\t// When not a direct host, it could happen that there is no child element\n\t\t// capable of displaying a placeholder.\n\t\tif ( !hostElement ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Don't override placeholder if the host element already has some direct placeholder.\n\t\tif ( directHostElements.includes( hostElement ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Update the host element (used for setting and removing the placeholder).\n\t\tconfig.hostElement = hostElement;\n\n\t\tif ( updatePlaceholder( writer, element, config ) ) {\n\t\t\twasViewModified = true;\n\t\t}\n\t}\n\n\treturn wasViewModified;\n}\n\n// Updates a single placeholder in a post–fixer callback.\n//\n// @private\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @param {module:engine/view/element~Element} element\n// @param {Object} config Configuration of the placeholder\n// @param {String} config.text\n// @param {Boolean} config.isDirectHost\n// @returns {Boolean} True if any changes were made to the view document.\nfunction updatePlaceholder( writer: DowncastWriter, element: Element, config: PlaceholderConfig ) {\n\tconst { text, isDirectHost, hostElement } = config;\n\n\tlet wasViewModified = false;\n\n\t// This may be necessary when updating the placeholder text to something else.\n\tif ( hostElement!.getAttribute( 'data-placeholder' ) !== text ) {\n\t\twriter.setAttribute( 'data-placeholder', text, hostElement! );\n\t\twasViewModified = true;\n\t}\n\n\t// If the host element is not a direct host then placeholder is needed only when there is only one element.\n\tconst isOnlyChild = isDirectHost || element.childCount == 1;\n\n\tif ( isOnlyChild && needsPlaceholder( hostElement!, config.keepOnFocus ) ) {\n\t\tif ( showPlaceholder( writer, hostElement! ) ) {\n\t\t\twasViewModified = true;\n\t\t}\n\t} else if ( hidePlaceholder( writer, hostElement! ) ) {\n\t\twasViewModified = true;\n\t}\n\n\treturn wasViewModified;\n}\n\n// Gets a child element capable of displaying a placeholder if a parent element can host more\n// than just text (for instance, when it is a root editable element). The child element\n// can then be used in other placeholder helpers as a substitute of its parent.\n//\n// @private\n// @param {module:engine/view/element~Element} parent\n// @returns {module:engine/view/element~Element|null}\nfunction getChildPlaceholderHostSubstitute( parent: Element ): Element | null {\n\tif ( parent.childCount ) {\n\t\tconst firstChild = parent.getChild( 0 )!;\n\n\t\tif ( firstChild.is( 'element' ) && !firstChild.is( 'uiElement' ) && !firstChild.is( 'attributeElement' ) ) {\n\t\t\treturn firstChild;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * TODO\n */\ninterface PlaceholderConfig {\n\ttext: string;\n\tisDirectHost: boolean;\n\tkeepOnFocus: boolean;\n\thostElement: Element | null;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type AttributeElement from './attributeelement';\nimport type ContainerElement from './containerelement';\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type EditableElement from './editableelement';\nimport type Element from './element';\nimport type EmptyElement from './emptyelement';\nimport type Node from './node';\nimport type Position from './position';\nimport type Range from './range';\nimport type RawElement from './rawelement';\nimport type RootEditableElement from './rooteditableelement';\nimport type Selection from './selection';\nimport type Text from './text';\nimport type TextProxy from './textproxy';\nimport type UIElement from './uielement';\n\n/**\n * @module engine/view/typecheckable\n */\n\nexport default abstract class TypeCheckable {\n\tpublic is( type: 'node' | 'view:node' ): this is (\n\t\tNode |\n\t\tText |\n\t\tElement |\n\t\tAttributeElement |\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tEmptyElement |\n\t\tRawElement |\n\t\tRootEditableElement |\n\t\tUIElement\n\t);\n\tpublic is( type: 'element' | 'view:element' ): this is (\n\t\tElement |\n\t\tAttributeElement |\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tEmptyElement |\n\t\tRawElement |\n\t\tRootEditableElement |\n\t\tUIElement\n\t);\n\tpublic is( type: 'attributeElement' | 'view:attributeElement' ): this is AttributeElement;\n\tpublic is( type: 'containerElement' | 'view:containerElement' ): this is ContainerElement | EditableElement | RootEditableElement;\n\tpublic is( type: 'editableElement' | 'view:editableElement' ): this is EditableElement | RootEditableElement;\n\tpublic is( type: 'emptyElement' | 'view:emptyElement' ): this is EmptyElement;\n\tpublic is( type: 'rawElement' | 'view:rawElement' ): this is RawElement;\n\tpublic is( type: 'rootElement' | 'view:rootElement' ): this is RootEditableElement;\n\tpublic is( type: 'uiElement' | 'view:uiElement' ): this is UIElement;\n\n\tpublic is( type: '$text' | 'view:$text' ): this is Text;\n\tpublic is( type: 'documentFragment' | 'view:documentFragment' ): this is DocumentFragment;\n\tpublic is( type: '$textProxy' | 'view:$textProxy' ): this is TextProxy;\n\tpublic is( type: 'position' | 'view:position' ): this is Position;\n\tpublic is( type: 'range' | 'view:range' ): this is Range;\n\tpublic is( type: 'selection' | 'view:selection' ): this is Selection | DocumentSelection;\n\tpublic is( type: 'documentSelection' | 'view:documentSelection' ): this is DocumentSelection;\n\n\tpublic is<N extends string>( type: 'element' | 'view:element', name: N ): this is (\n\t\tElement |\n\t\tAttributeElement |\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tEmptyElement |\n\t\tRawElement |\n\t\tRootEditableElement |\n\t\tUIElement\n\t) & { name: N };\n\tpublic is<N extends string>( type: 'attributeElement' | 'view:attributeElement', name: N ): this is AttributeElement & { name: N };\n\tpublic is<N extends string>( type: 'containerElement' | 'view:containerElement', name: N ): this is (\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tRootEditableElement\n\t) & { name: N };\n\tpublic is<N extends string>( type: 'editableElement' | 'view:editableElement', name: N ): this is (\n\t\tEditableElement |\n\t\tRootEditableElement\n\t) & { name: N };\n\tpublic is<N extends string>( type: 'emptyElement' | 'view:emptyElement', name: N ): this is EmptyElement & { name: N };\n\tpublic is<N extends string>( type: 'rawElement' | 'view:rawElement', name: N ): this is RawElement & { name: N };\n\tpublic is<N extends string>( type: 'rootElement' | 'view:rootElement', name: N ): this is RootEditableElement & { name: N };\n\tpublic is<N extends string>( type: 'uiElement' | 'view:uiElement', name: N ): this is UIElement & { name: N };\n\n\t/* istanbul ignore next */\n\tpublic is(): boolean {\n\t\t// There are a lot of overloads above.\n\t\t// Overriding method in derived classes remove them and only `is( type: string ): boolean` is visible which we don't want.\n\t\t// One option would be to copy them all to all classes, but that's ugly.\n\t\t// It's best when TypeScript compiler doesn't see those overloads, except the one in the top base class.\n\t\t// To overload a method, but not let the compiler see it, do after class definition:\n\t\t// `MyClass.prototype.is = function( type: string ) {...}`\n\t\tthrow new Error( 'is() method is abstract' );\n\t}\n}\n","import baseClone from './_baseClone.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\nfunction clone(value) {\n  return baseClone(value, CLONE_SYMBOLS_FLAG);\n}\n\nexport default clone;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/node\n */\n\nimport TypeCheckable from './typecheckable';\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tcompareArrays\n} from '@ckeditor/ckeditor5-utils';\n\nimport { clone } from 'lodash-es';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\nimport type { default as Document, ChangeType } from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\n\n/**\n * Abstract view node class.\n *\n * This is an abstract class. Its constructor should not be used directly.\n * Use the {@link module:engine/view/downcastwriter~DowncastWriter} or {@link module:engine/view/upcastwriter~UpcastWriter}\n * to create new instances of view nodes.\n *\n * @abstract\n */\nexport default abstract class Node extends EmitterMixin( TypeCheckable ) {\n\tpublic document: Document;\n\tpublic parent: Element | DocumentFragment | null;\n\n\t/**\n\t * Creates a tree view node.\n\t *\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this node belongs.\n\t */\n\tconstructor( document: Document ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The document instance to which this node belongs.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = document;\n\n\t\t/**\n\t\t * Parent element. Null by default. Set by {@link module:engine/view/element~Element#_insertChild}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment|null}\n\t\t */\n\t\tthis.parent = null;\n\t}\n\n\t/**\n\t * Index of the node in the parent element or null if the node has no parent.\n\t *\n\t * Accessing this property throws an error if this node's parent element does not contain it.\n\t * This means that view tree got broken.\n\t *\n\t * @readonly\n\t * @type {Number|null}\n\t */\n\tpublic get index(): number | null {\n\t\tlet pos;\n\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// No parent or child doesn't exist in parent's children.\n\t\tif ( ( pos = this.parent.getChildIndex( this ) ) == -1 ) {\n\t\t\t/**\n\t\t\t * The node's parent does not contain this node. It means that the document tree is corrupted.\n\t\t\t *\n\t\t\t * @error view-node-not-found-in-parent\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-node-not-found-in-parent', this );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Node's next sibling, or `null` if it is the last child.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/node~Node|null}\n\t */\n\tpublic get nextSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index + 1 ) ) || null;\n\t}\n\n\t/**\n\t * Node's previous sibling, or `null` if it is the first child.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/node~Node|null}\n\t */\n\tpublic get previousSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index - 1 ) ) || null;\n\t}\n\n\t/**\n\t * Top-most ancestor of the node. If the node has no parent it is the root itself.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): Element | DocumentFragment {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet root: Node | DocumentFragment = this;\n\n\t\twhile ( root.parent ) {\n\t\t\troot = root.parent;\n\t\t}\n\n\t\treturn root as any;\n\t}\n\n\t/**\n\t * Returns true if the node is in a tree rooted in the document (is a descendant of one of its roots).\n\t *\n\t * @returns {Boolean}\n\t */\n\tpublic isAttached(): boolean {\n\t\treturn this.root.is( 'rootElement' );\n\t}\n\n\t/**\n\t * Gets a path to the node. The path is an array containing indices of consecutive ancestors of this node,\n\t * beginning from {@link module:engine/view/node~Node#root root}, down to this node's index.\n\t *\n\t *\t\tconst abc = downcastWriter.createText( 'abc' );\n\t *\t\tconst foo = downcastWriter.createText( 'foo' );\n\t *\t\tconst h1 = downcastWriter.createElement( 'h1', null, downcastWriter.createText( 'header' ) );\n\t *\t\tconst p = downcastWriter.createElement( 'p', null, [ abc, foo ] );\n\t *\t\tconst div = downcastWriter.createElement( 'div', null, [ h1, p ] );\n\t *\t\tfoo.getPath(); // Returns [ 1, 3 ]. `foo` is in `p` which is in `div`. `p` starts at offset 1, while `foo` at 3.\n\t *\t\th1.getPath(); // Returns [ 0 ].\n\t *\t\tdiv.getPath(); // Returns [].\n\t *\n\t * @returns {Array.<Number>} The path.\n\t */\n\tpublic getPath(): Array<number> {\n\t\tconst path = [];\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node | DocumentFragment = this;\n\n\t\twhile ( node.parent ) {\n\t\t\tpath.unshift( node.index! );\n\t\t\tnode = node.parent;\n\t\t}\n\n\t\treturn path;\n\t}\n\n\t/**\n\t * Returns ancestors array of this node.\n\t *\n\t * @param {Object} options Options object.\n\t * @param {Boolean} [options.includeSelf=false] When set to `true` this node will be also included in parent's array.\n\t * @param {Boolean} [options.parentFirst=false] When set to `true`, array will be sorted from node's parent to root element,\n\t * otherwise root element will be the first item in the array.\n\t * @returns {Array} Array with ancestors.\n\t */\n\tpublic getAncestors( options: { includeSelf?: boolean; parentFirst?: boolean } = {} ): Array<Node | DocumentFragment> {\n\t\tconst ancestors: Array<Node | DocumentFragment> = [];\n\t\tlet parent = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/element~Element} or {@link module:engine/view/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both nodes.\n\t *\n\t * @param {module:engine/view/node~Node} node The second node.\n\t * @param {Object} options Options object.\n\t * @param {Boolean} [options.includeSelf=false] When set to `true` both nodes will be considered \"ancestors\" too.\n\t * Which means that if e.g. node A is inside B, then their common ancestor will be B.\n\t * @returns {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment|null}\n\t */\n\tpublic getCommonAncestor( node: Node, options: { includeSelf?: boolean } = {} ): Element | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors( options );\n\t\tconst ancestorsB = node.getAncestors( options );\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ] as ( Element | DocumentFragment );\n\t}\n\n\t/**\n\t * Returns whether this node is before given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/view/documentfragment~DocumentFragment}s).\n\t *\n\t * @param {module:engine/view/node~Node} node Node to compare with.\n\t * @returns {Boolean}\n\t */\n\tpublic isBefore( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst thisPath = this.getPath();\n\t\tconst nodePath = node.getPath();\n\n\t\tconst result = compareArrays( thisPath, nodePath );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'prefix':\n\t\t\t\treturn true;\n\n\t\t\tcase 'extension':\n\t\t\t\treturn false;\n\n\t\t\tdefault:\n\t\t\t\treturn thisPath[ result as number ] < nodePath[ result as number ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns whether this node is after given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/view/documentfragment~DocumentFragment}s).\n\t *\n\t * @param {module:engine/view/node~Node} node Node to compare with.\n\t * @returns {Boolean}\n\t */\n\tpublic isAfter( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// In other cases, just check if the `node` is before, and return the opposite.\n\t\treturn !this.isBefore( node );\n\t}\n\n\t/**\n\t * Removes node from parent.\n\t *\n\t * @internal\n\t * @protected\n\t */\n\tpublic _remove(): void {\n\t\tthis.parent!._removeChildren( this.index! );\n\t}\n\n\t/**\n\t * @internal\n\t * @protected\n\t * @param {module:engine/view/document~ChangeType} type Type of the change.\n\t * @param {module:engine/view/node~Node} node Changed node.\n\t * @fires change\n\t */\n\tpublic _fireChange( type: ChangeType, node: Node ): void {\n\t\tthis.fire<ViewNodeChangeEvent>( `change:${ type }`, node );\n\n\t\tif ( this.parent ) {\n\t\t\tthis.parent._fireChange( type, node );\n\t\t}\n\t}\n\n\t/**\n\t * Custom toJSON method to solve child-parent circular dependencies.\n\t *\n\t * @returns {Object} Clone of this object with the parent property removed.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json: any = clone( this );\n\n\t\t// Due to circular references we need to remove parent reference.\n\t\tdelete json.parent;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Clones this node.\n\t *\n\t * @protected\n\t * @method #_clone\n\t * @returns {module:engine/view/node~Node} Clone of this node.\n\t */\n\tpublic abstract _clone( deep?: boolean ): Node;\n\n\t/**\n\t * Checks if provided node is similar to this node.\n\t *\n\t * @method #isSimilar\n\t * @returns {Boolean} True if nodes are similar.\n\t */\n\tpublic abstract isSimilar( other: Node ): boolean;\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n * This method is useful when processing view objects that are of unknown type. For example, a function\n * may return a {@link module:engine/view/documentfragment~DocumentFragment} or a {@link module:engine/view/node~Node}\n * that can be either a text node or an element. This method can be used to check what kind of object is returned.\n *\n *\t\tsomeObject.is( 'element' ); // -> true if this is an element\n *\t\tsomeObject.is( 'node' ); // -> true if this is a node (a text node or an element)\n *\t\tsomeObject.is( 'documentFragment' ); // -> true if this is a document fragment\n *\n * Since this method is also available on a range of model objects, you can prefix the type of the object with\n * `model:` or `view:` to check, for example, if this is the model's or view's element:\n *\n *\t\tviewElement.is( 'view:element' ); // -> true\n *\t\tviewElement.is( 'model:element' ); // -> false\n *\n * By using this method it is also possible to check a name of an element:\n *\n *\t\timgElement.is( 'element', 'img' ); // -> true\n *\t\timgElement.is( 'view:element', 'img' ); // -> same as above, but more precise\n *\n * The list of view objects which implement the `is()` method:\n *\n * * {@link module:engine/view/attributeelement~AttributeElement#is `AttributeElement#is()`}\n * * {@link module:engine/view/containerelement~ContainerElement#is `ContainerElement#is()`}\n * * {@link module:engine/view/documentfragment~DocumentFragment#is `DocumentFragment#is()`}\n * * {@link module:engine/view/documentselection~DocumentSelection#is `DocumentSelection#is()`}\n * * {@link module:engine/view/editableelement~EditableElement#is `EditableElement#is()`}\n * * {@link module:engine/view/element~Element#is `Element#is()`}\n * * {@link module:engine/view/emptyelement~EmptyElement#is `EmptyElement#is()`}\n * * {@link module:engine/view/node~Node#is `Node#is()`}\n * * {@link module:engine/view/position~Position#is `Position#is()`}\n * * {@link module:engine/view/range~Range#is `Range#is()`}\n * * {@link module:engine/view/rooteditableelement~RootEditableElement#is `RootEditableElement#is()`}\n * * {@link module:engine/view/selection~Selection#is `Selection#is()`}\n * * {@link module:engine/view/text~Text#is `Text#is()`}\n * * {@link module:engine/view/textproxy~TextProxy#is `TextProxy#is()`}\n * * {@link module:engine/view/uielement~UIElement#is `UIElement#is()`}\n *\n * @method #is\n * @param {String} type Type to check.\n * @returns {Boolean}\n */\nNode.prototype.is = function( type: string ): boolean {\n\treturn type === 'node' || type === 'view:node';\n};\n\n/**\n * Fired when list of {@link module:engine/view/element~Element elements} children changes.\n *\n * Change event is bubbled – it is fired on all ancestors.\n *\n * @event change:children\n * @param {module:engine/view/node~Node} changedNode\n */\n\n/**\n * Fired when list of {@link module:engine/view/element~Element elements} attributes changes.\n *\n * Change event is bubbled – it is fired on all ancestors.\n *\n * @event change:attributes\n * @param {module:engine/view/node~Node} changedNode\n */\n\n/**\n * Fired when {@link module:engine/view/text~Text text nodes} data changes.\n *\n * Change event is bubbled – it is fired on all ancestors.\n *\n * @event change:text\n * @param {module:engine/view/node~Node} changedNode\n */\n\n/**\n * @event change\n */\n\nexport type ViewNodeChangeEvent = {\n\tname: 'change' | `change:${ ChangeType }`;\n\targs: [ changedNode: Node ];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/text\n */\n\nimport Node from './node';\n\nimport type Document from './document';\n\n/**\n * Tree view text node.\n *\n * The constructor of this class should not be used directly. To create a new text node instance\n * use the {@link module:engine/view/downcastwriter~DowncastWriter#createText `DowncastWriter#createText()`}\n * method when working on data downcasted from the model or the\n * {@link module:engine/view/upcastwriter~UpcastWriter#createText `UpcastWriter#createText()`}\n * method when working on non-semantic views.\n *\n * @extends module:engine/view/node~Node\n */\nexport default class Text extends Node {\n\tprivate _textData: string;\n\n\t/**\n\t * Creates a tree view text node.\n\t *\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this text node belongs.\n\t * @param {String} data The text's data.\n\t */\n\tconstructor( document: Document, data: string ) {\n\t\tsuper( document );\n\n\t\t/**\n\t\t * The text content.\n\t\t *\n\t\t * Setting the data fires the {@link module:engine/view/node~Node#event:change:text change event}.\n\t\t *\n\t\t * @protected\n\t\t * @member {String} module:engine/view/text~Text#_textData\n\t\t */\n\t\tthis._textData = data;\n\t}\n\n\t/**\n\t * The text content.\n\t *\n\t * @readonly\n\t * @type {String}\n\t */\n\tpublic get data(): string {\n\t\treturn this._textData;\n\t}\n\n\t/**\n\t * The `_data` property is controlled by a getter and a setter.\n\t *\n\t * The getter is required when using the addition assignment operator on protected property:\n\t *\n\t *\t\tconst foo = downcastWriter.createText( 'foo' );\n\t *\t\tconst bar = downcastWriter.createText( 'bar' );\n\t *\n\t *\t\tfoo._data += bar.data;   // executes: `foo._data = foo._data + bar.data`\n\t *\t\tconsole.log( foo.data ); // prints: 'foobar'\n\t *\n\t * If the protected getter didn't exist, `foo._data` will return `undefined` and result of the merge will be invalid.\n\t *\n\t * The setter sets data and fires the {@link module:engine/view/node~Node#event:change:text change event}.\n\t *\n\t * @protected\n\t * @type {String}\n\t */\n\tpublic get _data(): string {\n\t\treturn this.data;\n\t}\n\n\tpublic set _data( data: string ) {\n\t\tthis._fireChange( 'text', this );\n\n\t\tthis._textData = data;\n\t}\n\n\t/**\n\t * Checks if this text node is similar to other text node.\n\t * Both nodes should have the same data to be considered as similar.\n\t *\n\t * @param {module:engine/view/node~Node} otherNode Node to check if it is same as this node.\n\t * @returns {Boolean}\n\t */\n\tpublic isSimilar( otherNode: Node ): boolean {\n\t\tif ( !( otherNode instanceof Text ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn this === otherNode || this.data === otherNode.data;\n\t}\n\n\t/**\n\t * Clones this node.\n\t *\n\t * @protected\n\t * @returns {module:engine/view/text~Text} Text node that is a clone of this node.\n\t */\n\tpublic _clone(): Text {\n\t\treturn new Text( this.document, this.data );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewText: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logExtended() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewText: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\ttext.is( '$text' ); // -> true\n *\t\ttext.is( 'node' ); // -> true\n *\t\ttext.is( 'view:$text' ); // -> true\n *\t\ttext.is( 'view:node' ); // -> true\n *\n *\t\ttext.is( 'model:$text' ); // -> false\n *\t\ttext.is( 'element' ); // -> false\n *\t\ttext.is( 'range' ); // -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * **Note:** Until version 20.0.0 this method wasn't accepting `'$text'` type. The legacy `'text'` type is still\n * accepted for backward compatibility.\n *\n * @param {String} type Type to check.\n * @returns {Boolean}\n */\nText.prototype.is = function( type: string ): boolean {\n\treturn type === '$text' || type === 'view:$text' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'text' || type === 'view:text' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype === 'node' || type === 'view:node';\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/textproxy\n */\n\nimport TypeCheckable from './typecheckable';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Node from './node';\nimport type Text from './text';\n\n/**\n * TextProxy is a wrapper for substring of {@link module:engine/view/text~Text}. Instance of this class is created by\n * {@link module:engine/view/treewalker~TreeWalker} when only a part of {@link module:engine/view/text~Text} needs to be returned.\n *\n * `TextProxy` has an API similar to {@link module:engine/view/text~Text Text} and allows to do most of the common tasks performed\n * on view nodes.\n *\n * **Note:** Some `TextProxy` instances may represent whole text node, not just a part of it.\n * See {@link module:engine/view/textproxy~TextProxy#isPartial}.\n *\n * **Note:** `TextProxy` is a readonly interface.\n *\n * **Note:** `TextProxy` instances are created on the fly basing on the current state of parent {@link module:engine/view/text~Text}.\n * Because of this it is highly unrecommended to store references to `TextProxy instances because they might get\n * invalidated due to operations on Document. Also TextProxy is not a {@link module:engine/view/node~Node} so it can not be\n * inserted as a child of {@link module:engine/view/element~Element}.\n *\n * `TextProxy` instances are created by {@link module:engine/view/treewalker~TreeWalker view tree walker}. You should not need to create\n * an instance of this class by your own.\n */\nexport default class TextProxy extends TypeCheckable {\n\tpublic readonly textNode: Text;\n\tpublic readonly data: string;\n\tpublic readonly offsetInText: number;\n\n\t/**\n\t * Creates a text proxy.\n\t *\n\t * @protected\n\t * @param {module:engine/view/text~Text} textNode Text node which part is represented by this text proxy.\n\t * @param {Number} offsetInText Offset in {@link module:engine/view/textproxy~TextProxy#textNode text node}\n\t * from which the text proxy starts.\n\t * @param {Number} length Text proxy length, that is how many text node's characters, starting from `offsetInText` it represents.\n\t * @constructor\n\t */\n\tconstructor( textNode: Text, offsetInText: number, length: number ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Reference to the {@link module:engine/view/text~Text} element which TextProxy is a substring.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/text~Text} module:engine/view/textproxy~TextProxy#textNode\n\t\t */\n\t\tthis.textNode = textNode;\n\n\t\tif ( offsetInText < 0 || offsetInText > textNode.data.length ) {\n\t\t\t/**\n\t\t\t * Given offsetInText value is incorrect.\n\t\t\t *\n\t\t\t * @error view-textproxy-wrong-offsetintext\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-textproxy-wrong-offsetintext', this );\n\t\t}\n\n\t\tif ( length < 0 || offsetInText + length > textNode.data.length ) {\n\t\t\t/**\n\t\t\t * Given length value is incorrect.\n\t\t\t *\n\t\t\t * @error view-textproxy-wrong-length\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-textproxy-wrong-length', this );\n\t\t}\n\n\t\t/**\n\t\t * Text data represented by this text proxy.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String} module:engine/view/textproxy~TextProxy#data\n\t\t */\n\t\tthis.data = textNode.data.substring( offsetInText, offsetInText + length );\n\n\t\t/**\n\t\t * Offset in the `textNode` where this `TextProxy` instance starts.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} module:engine/view/textproxy~TextProxy#offsetInText\n\t\t */\n\t\tthis.offsetInText = offsetInText;\n\t}\n\n\t/**\n\t * Offset size of this node.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get offsetSize(): number {\n\t\treturn this.data.length;\n\t}\n\n\t/**\n\t * Flag indicating whether `TextProxy` instance covers only part of the original {@link module:engine/view/text~Text text node}\n\t * (`true`) or the whole text node (`false`).\n\t *\n\t * This is `false` when text proxy starts at the very beginning of {@link module:engine/view/textproxy~TextProxy#textNode textNode}\n\t * ({@link module:engine/view/textproxy~TextProxy#offsetInText offsetInText} equals `0`) and text proxy sizes is equal to\n\t * text node size.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isPartial(): boolean {\n\t\treturn this.data.length !== this.textNode.data.length;\n\t}\n\n\t/**\n\t * Parent of this text proxy, which is same as parent of text node represented by this text proxy.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment|null}\n\t */\n\tpublic get parent(): Element | DocumentFragment | null {\n\t\treturn this.textNode.parent;\n\t}\n\n\t/**\n\t * Root of this text proxy, which is same as root of text node represented by this text proxy.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.textNode.root;\n\t}\n\n\t/**\n\t * {@link module:engine/view/document~Document View document} that owns this text proxy, or `null` if the text proxy is inside\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment}.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/document~Document|null}\n\t */\n\tpublic get document(): Document | null {\n\t\treturn this.textNode.document;\n\t}\n\n\t/**\n\t * Returns ancestors array of this text proxy.\n\t *\n\t * @param {Object} options Options object.\n\t * @param {Boolean} [options.includeSelf=false] When set to `true` {#textNode} will be also included in parent's array.\n\t * @param {Boolean} [options.parentFirst=false] When set to `true`, array will be sorted from text proxy parent to\n\t * root element, otherwise root element will be the first item in the array.\n\t * @returns {Array} Array with ancestors.\n\t */\n\tpublic getAncestors( options: {\n\t\tincludeSelf?: boolean;\n\t\tparentFirst?: boolean;\n\t} = {} ): Array<Text | Element | DocumentFragment> {\n\t\tconst ancestors: Array<Text | Element | DocumentFragment> = [];\n\t\tlet parent: Text | Element | DocumentFragment | null = options.includeSelf ? this.textNode : this.parent;\n\n\t\twhile ( parent !== null ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewTextProxy: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logExtended() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewTextProxy: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\ttextProxy.is( '$textProxy' ); // -> true\n *\t\ttextProxy.is( 'view:$textProxy' ); // -> true\n *\n *\t\ttextProxy.is( 'model:$textProxy' ); // -> false\n *\t\ttextProxy.is( 'element' ); // -> false\n *\t\ttextProxy.is( 'range' ); // -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * **Note:** Until version 20.0.0 this method wasn't accepting `'$textProxy'` type. The legacy `'textProxy'` type is still\n * accepted for backward compatibility.\n *\n * @param {String} type Type to check.\n * @returns {Boolean}\n */\nTextProxy.prototype.is = function( type: string ): boolean {\n\treturn type === '$textProxy' || type === 'view:$textProxy' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'textProxy' || type === 'view:textProxy';\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/matcher\n */\n\nimport type Element from './element';\n\nimport { isPlainObject } from 'lodash-es';\n\nimport { logWarning } from '@ckeditor/ckeditor5-utils';\n\n/**\n * View matcher class.\n * Instance of this class can be used to find {@link module:engine/view/element~Element elements} that match given pattern.\n */\nexport default class Matcher {\n\tprivate readonly _patterns: Array<Exclude<MatcherPattern, string | RegExp>>;\n\n\t/**\n\t * Creates new instance of Matcher.\n\t *\n\t * @param {String|RegExp|Object|Function} [pattern] Match patterns. See {@link module:engine/view/matcher~Matcher#add add method} for\n\t * more information.\n\t */\n\tconstructor( ...pattern: Array<MatcherPattern> ) {\n\t\t/**\n\t\t * @private\n\t\t * @type {Array<Object|Function>}\n\t\t */\n\t\tthis._patterns = [];\n\n\t\tthis.add( ...pattern );\n\t}\n\n\t/**\n\t * Adds pattern or patterns to matcher instance.\n\t *\n\t *\t\t// String.\n\t *\t\tmatcher.add( 'div' );\n\t *\n\t *\t\t// Regular expression.\n\t *\t\tmatcher.add( /^\\w/ );\n\t *\n\t *\t\t// Single class.\n\t *\t\tmatcher.add( {\n\t *\t\t\tclasses: 'foobar'\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/view/matcher~MatcherPattern} for more examples.\n\t *\n\t * Multiple patterns can be added in one call:\n\t *\n\t * \t\tmatcher.add( 'div', { classes: 'foobar' } );\n\t *\n\t * @param {Object|String|RegExp|Function} pattern Object describing pattern details. If string or regular expression\n\t * is provided it will be used to match element's name. Pattern can be also provided in a form\n\t * of a function - then this function will be called with each {@link module:engine/view/element~Element element} as a parameter.\n\t * Function's return value will be stored under `match` key of the object returned from\n\t * {@link module:engine/view/matcher~Matcher#match match} or {@link module:engine/view/matcher~Matcher#matchAll matchAll} methods.\n\t * @param {String|RegExp} [pattern.name] Name or regular expression to match element's name.\n\t * @param {Object} [pattern.attributes] Object with key-value pairs representing attributes to match. Each object key\n\t * represents attribute name. Value under that key can be either:\n\t * * `true` - then attribute is just required (can be empty),\n\t * * a string - then attribute has to be equal, or\n\t * * a regular expression - then attribute has to match the expression.\n\t * @param {String|RegExp|Array} [pattern.classes] Class name or array of class names to match. Each name can be\n\t * provided in a form of string or regular expression.\n\t * @param {Object} [pattern.styles] Object with key-value pairs representing styles to match. Each object key\n\t * represents style name. Value under that key can be either a string or a regular expression and it will be used\n\t * to match style value.\n\t */\n\tpublic add( ...pattern: Array<MatcherPattern> ): void {\n\t\tfor ( let item of pattern ) {\n\t\t\t// String or RegExp pattern is used as element's name.\n\t\t\tif ( typeof item == 'string' || item instanceof RegExp ) {\n\t\t\t\titem = { name: item };\n\t\t\t}\n\n\t\t\tthis._patterns.push( item );\n\t\t}\n\t}\n\n\t/**\n\t * Matches elements for currently stored patterns. Returns match information about first found\n\t * {@link module:engine/view/element~Element element}, otherwise returns `null`.\n\t *\n\t * Example of returned object:\n\t *\n\t *\t\t{\n\t *\t\t\telement: <instance of found element>,\n\t *\t\t\tpattern: <pattern used to match found element>,\n\t *\t\t\tmatch: {\n\t *\t\t\t\tname: true,\n\t *\t\t\t\tattributes: [ 'title', 'href' ],\n\t *\t\t\t\tclasses: [ 'foo' ],\n\t *\t\t\t\tstyles: [ 'color', 'position' ]\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t * @see module:engine/view/matcher~Matcher#add\n\t * @see module:engine/view/matcher~Matcher#matchAll\n\t * @param {...module:engine/view/element~Element} element View element to match against stored patterns.\n\t * @returns {Object|null} result\n\t * @returns {module:engine/view/element~Element} result.element Matched view element.\n\t * @returns {Object|String|RegExp|Function} result.pattern Pattern that was used to find matched element.\n\t * @returns {Object} result.match Object representing matched element parts.\n\t * @returns {Boolean} [result.match.name] True if name of the element was matched.\n\t * @returns {Array} [result.match.attributes] Array with matched attribute names.\n\t * @returns {Array} [result.match.classes] Array with matched class names.\n\t * @returns {Array} [result.match.styles] Array with matched style names.\n\t */\n\tpublic match( ...element: Array<Element> ): MatchResult | null {\n\t\tfor ( const singleElement of element ) {\n\t\t\tfor ( const pattern of this._patterns ) {\n\t\t\t\tconst match = isElementMatching( singleElement, pattern );\n\n\t\t\t\tif ( match ) {\n\t\t\t\t\treturn {\n\t\t\t\t\t\telement: singleElement,\n\t\t\t\t\t\tpattern,\n\t\t\t\t\t\tmatch\n\t\t\t\t\t};\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Matches elements for currently stored patterns. Returns array of match information with all found\n\t * {@link module:engine/view/element~Element elements}. If no element is found - returns `null`.\n\t *\n\t * @see module:engine/view/matcher~Matcher#add\n\t * @see module:engine/view/matcher~Matcher#match\n\t * @param {...module:engine/view/element~Element} element View element to match against stored patterns.\n\t * @returns {Array.<Object>|null} Array with match information about found elements or `null`. For more information\n\t * see {@link module:engine/view/matcher~Matcher#match match method} description.\n\t */\n\tpublic matchAll( ...element: Array<Element> ): Array<MatchResult> | null {\n\t\tconst results: Array<MatchResult> = [];\n\n\t\tfor ( const singleElement of element ) {\n\t\t\tfor ( const pattern of this._patterns ) {\n\t\t\t\tconst match = isElementMatching( singleElement, pattern );\n\n\t\t\t\tif ( match ) {\n\t\t\t\t\tresults.push( {\n\t\t\t\t\t\telement: singleElement,\n\t\t\t\t\t\tpattern,\n\t\t\t\t\t\tmatch\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn results.length > 0 ? results : null;\n\t}\n\n\t/**\n\t * Returns the name of the element to match if there is exactly one pattern added to the matcher instance\n\t * and it matches element name defined by `string` (not `RegExp`). Otherwise, returns `null`.\n\t *\n\t * @returns {String|null} Element name trying to match.\n\t */\n\tpublic getElementName(): string | null {\n\t\tif ( this._patterns.length !== 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst pattern = this._patterns[ 0 ];\n\t\tconst name = pattern.name;\n\n\t\treturn ( typeof pattern != 'function' && name && !( name instanceof RegExp ) ) ? name : null;\n\t}\n}\n\n// Returns match information if {@link module:engine/view/element~Element element} is matching provided pattern.\n// If element cannot be matched to provided pattern - returns `null`.\n//\n// @param {module:engine/view/element~Element} element\n// @param {Object|String|RegExp|Function} pattern\n// @returns {Object|null} Returns object with match information or null if element is not matching.\nfunction isElementMatching( element: Element, pattern: Exclude<MatcherPattern, string | RegExp> ): Match | null {\n\t// If pattern is provided as function - return result of that function;\n\tif ( typeof pattern == 'function' ) {\n\t\treturn pattern( element );\n\t}\n\n\tconst match: Match = {};\n\n\t// Check element's name.\n\tif ( pattern.name ) {\n\t\tmatch.name = matchName( pattern.name, element.name );\n\n\t\tif ( !match.name ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// Check element's attributes.\n\tif ( pattern.attributes ) {\n\t\tmatch.attributes = matchAttributes( pattern.attributes, element );\n\n\t\tif ( !match.attributes ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// Check element's classes.\n\tif ( pattern.classes ) {\n\t\tmatch.classes = matchClasses( pattern.classes, element );\n\n\t\tif ( !match.classes ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// Check element's styles.\n\tif ( pattern.styles ) {\n\t\tmatch.styles = matchStyles( pattern.styles, element );\n\n\t\tif ( !match.styles ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\treturn match;\n}\n\n// Checks if name can be matched by provided pattern.\n//\n// @param {String|RegExp} pattern\n// @param {String} name\n// @returns {Boolean} Returns `true` if name can be matched, `false` otherwise.\nfunction matchName( pattern: string | RegExp, name: string ): boolean {\n\t// If pattern is provided as RegExp - test against this regexp.\n\tif ( pattern instanceof RegExp ) {\n\t\treturn !!name.match( pattern );\n\t}\n\n\treturn pattern === name;\n}\n\n// Checks if an array of key/value pairs can be matched against provided patterns.\n//\n// Patterns can be provided in a following ways:\n// \t- a boolean value matches any attribute with any value (or no value):\n//\n//\t\t\tpattern: true\n//\n//\t- a RegExp expression or object matches any attribute name:\n//\n//\t\t\tpattern: /h[1-6]/\n//\n//\t- an object matches any attribute that has the same name as the object item's key, where object item's value is:\n//\t\t- equal to `true`, which matches any attribute value:\n//\n//\t\t\tpattern: {\n//\t\t\t\trequired: true\n//\t\t\t}\n//\n//\t\t- a string that is equal to attribute value:\n//\n//\t\t\tpattern: {\n//\t\t\t\trel: 'nofollow'\n//\t\t\t}\n//\n//\t\t- a regular expression that matches attribute value,\n//\n//\t\t\tpattern: {\n//\t\t\t\tsrc: /https.*/\n//\t\t\t}\n//\n//\t- an array with items, where the item is:\n//\t\t- a string that is equal to attribute value:\n//\n//\t\t\tpattern: [ 'data-property-1', 'data-property-2' ],\n//\n//\t\t- an object with `key` and `value` property, where `key` is a regular expression matching attribute name and\n//\t\t  `value` is either regular expression matching attribute value or a string equal to attribute value:\n//\n//\t\t\tpattern: [\n//\t\t\t\t{ key: /data-property-.*/, value: true },\n//\t\t\t\t// or:\n//\t\t\t\t{ key: /data-property-.*/, value: 'foobar' },\n//\t\t\t\t// or:\n//\t\t\t\t{ key: /data-property-.*/, value: /foo.*/ }\n//\t\t\t]\n//\n// @param {Object} patterns Object with information about attributes to match.\n// @param {Iterable.<String>} keys Attribute, style or class keys.\n// @param {Function} valueGetter A function providing value for a given item key.\n// @returns {Array|null} Returns array with matched attribute names or `null` if no attributes were matched.\nfunction matchPatterns(\n\tpatterns: PropertyPatterns,\n\tkeys: Iterable<string>,\n\tvalueGetter: ( value: string ) => unknown\n): Array<string> | undefined {\n\tconst normalizedPatterns = normalizePatterns( patterns );\n\tconst normalizedItems = Array.from( keys );\n\tconst match: Array<string> = [];\n\n\tnormalizedPatterns.forEach( ( [ patternKey, patternValue ] ) => {\n\t\tnormalizedItems.forEach( itemKey => {\n\t\t\tif (\n\t\t\t\tisKeyMatched( patternKey, itemKey ) &&\n\t\t\t\tisValueMatched( patternValue, itemKey, valueGetter )\n\t\t\t) {\n\t\t\t\tmatch.push( itemKey );\n\t\t\t}\n\t\t} );\n\t} );\n\n\t// Return matches only if there are at least as many of them as there are patterns.\n\t// The RegExp pattern can match more than one item.\n\tif ( !normalizedPatterns.length || match.length < normalizedPatterns.length ) {\n\t\treturn undefined;\n\t}\n\n\treturn match;\n}\n\n// Bring all the possible pattern forms to an array of arrays where first item is a key and second is a value.\n//\n// Examples:\n//\n// Boolean pattern value:\n//\n//\t\ttrue\n//\n// to\n//\n//\t\t[ [ true, true ] ]\n//\n// Textual pattern value:\n//\n//\t\t'attribute-name-or-class-or-style'\n//\n// to\n//\n//\t\t[ [ 'attribute-name-or-class-or-style', true ] ]\n//\n// Regular expression:\n//\n//\t\t/^data-.*$/\n//\n// to\n//\n//\t\t[ [ /^data-.*$/, true ] ]\n//\n// Objects (plain or with `key` and `value` specified explicitly):\n//\n//\t\t{\n//\t\t\tsrc: /^https:.*$/\n//\t\t}\n//\n// or\n//\n//\t\t[ {\n//\t\t\tkey: 'src',\n//\t\t\tvalue: /^https:.*$/\n//\t\t} ]\n//\n// to:\n//\n//\t\t[ [ 'src', /^https:.*$/ ] ]\n//\n// @param {Object|Array} patterns\n// @returns {Array|null} Returns an array of objects or null if provided patterns were not in an expected form.\nfunction normalizePatterns( patterns: PropertyPatterns ): Array<[ true | string | RegExp, true | string | RegExp ]> {\n\tif ( Array.isArray( patterns ) ) {\n\t\treturn patterns.map( ( pattern: any ) => {\n\t\t\tif ( isPlainObject( pattern ) ) {\n\t\t\t\tif ( pattern.key === undefined || pattern.value === undefined ) {\n\t\t\t\t\t// Documented at the end of matcher.js.\n\t\t\t\t\tlogWarning( 'matcher-pattern-missing-key-or-value', pattern );\n\t\t\t\t}\n\n\t\t\t\treturn [ pattern.key, pattern.value ];\n\t\t\t}\n\n\t\t\t// Assume the pattern is either String or RegExp.\n\t\t\treturn [ pattern, true ];\n\t\t} );\n\t}\n\n\tif ( isPlainObject( patterns ) ) {\n\t\treturn Object.entries( patterns );\n\t}\n\n\t// Other cases (true, string or regexp).\n\treturn [ [ patterns as any, true ] ];\n}\n\n// @param {String|RegExp} patternKey A pattern representing a key we want to match.\n// @param {String} itemKey An actual item key (e.g. `'src'`, `'background-color'`, `'ck-widget'`) we're testing against pattern.\n// @returns {Boolean}\nfunction isKeyMatched( patternKey: true | string | RegExp, itemKey: string ): unknown {\n\treturn patternKey === true ||\n\t\tpatternKey === itemKey ||\n\t\tpatternKey instanceof RegExp && itemKey.match( patternKey );\n}\n\n// @param {String|RegExp} patternValue A pattern representing a value we want to match.\n// @param {String} itemKey An item key, e.g. `background`, `href`, 'rel', etc.\n// @param {Function} valueGetter A function used to provide a value for a given `itemKey`.\n// @returns {Boolean}\nfunction isValueMatched(\n\tpatternValue: true | string | RegExp,\n\titemKey: string,\n\tvalueGetter: ( value: string ) => unknown\n): boolean {\n\tif ( patternValue === true ) {\n\t\treturn true;\n\t}\n\n\tconst itemValue = valueGetter( itemKey );\n\n\t// For now, the reducers are not returning the full tree of properties.\n\t// Casting to string preserves the old behavior until the root cause is fixed.\n\t// More can be found in https://github.com/ckeditor/ckeditor5/issues/10399.\n\treturn patternValue === itemValue ||\n\t\tpatternValue instanceof RegExp && !!String( itemValue ).match( patternValue );\n}\n\n// Checks if attributes of provided element can be matched against provided patterns.\n//\n// @param {Object} patterns Object with information about attributes to match. Each key of the object will be\n// used as attribute name. Value of each key can be a string or regular expression to match against attribute value.\n// @param {module:engine/view/element~Element} element Element which attributes will be tested.\n// @returns {Array|null} Returns array with matched attribute names or `null` if no attributes were matched.\nfunction matchAttributes(\n\tpatterns: PropertyPatterns,\n\telement: Element\n): Array<string> | undefined {\n\tconst attributeKeys = new Set( element.getAttributeKeys() );\n\n\t// `style` and `class` attribute keys are deprecated. Only allow them in object pattern\n\t// for backward compatibility.\n\tif ( isPlainObject( patterns ) ) {\n\t\tif ( ( patterns as any ).style !== undefined ) {\n\t\t\t// Documented at the end of matcher.js.\n\t\t\tlogWarning( 'matcher-pattern-deprecated-attributes-style-key', patterns as any );\n\t\t}\n\t\tif ( ( patterns as any ).class !== undefined ) {\n\t\t\t// Documented at the end of matcher.js.\n\t\t\tlogWarning( 'matcher-pattern-deprecated-attributes-class-key', patterns as any );\n\t\t}\n\t} else {\n\t\tattributeKeys.delete( 'style' );\n\t\tattributeKeys.delete( 'class' );\n\t}\n\n\treturn matchPatterns( patterns, attributeKeys, key => element.getAttribute( key ) );\n}\n\n// Checks if classes of provided element can be matched against provided patterns.\n//\n// @param {Array.<String|RegExp>} patterns Array of strings or regular expressions to match against element's classes.\n// @param {module:engine/view/element~Element} element Element which classes will be tested.\n// @returns {Array|null} Returns array with matched class names or `null` if no classes were matched.\nfunction matchClasses( patterns: ClassPatterns, element: Element ): Array<string> | undefined {\n\t// We don't need `getter` here because patterns for classes are always normalized to `[ className, true ]`.\n\treturn matchPatterns( patterns, element.getClassNames(), /* istanbul ignore next */ () => {} );\n}\n\n// Checks if styles of provided element can be matched against provided patterns.\n//\n// @param {Object} patterns Object with information about styles to match. Each key of the object will be\n// used as style name. Value of each key can be a string or regular expression to match against style value.\n// @param {module:engine/view/element~Element} element Element which styles will be tested.\n// @returns {Array|null} Returns array with matched style names or `null` if no styles were matched.\nfunction matchStyles( patterns: PropertyPatterns, element: Element ): Array<string> | undefined {\n\treturn matchPatterns( patterns, element.getStyleNames( true ), key => element.getStyle( key ) );\n}\n\n/**\n * An entity that is a valid pattern recognized by a matcher. `MatcherPattern` is used by {@link ~Matcher} to recognize\n * if a view element fits in a group of view elements described by the pattern.\n *\n * `MatcherPattern` can be given as a `String`, a `RegExp`, an `Object` or a `Function`.\n *\n * If `MatcherPattern` is given as a `String` or `RegExp`, it will match any view element that has a matching name:\n *\n *\t\t// Match any element with name equal to 'div'.\n *\t\tconst pattern = 'div';\n *\n *\t\t// Match any element which name starts on 'p'.\n *\t\tconst pattern = /^p/;\n *\n * If `MatcherPattern` is given as an `Object`, all the object's properties will be matched with view element properties.\n * If the view element does not meet all of the object's pattern properties, the match will not happen.\n * Available `Object` matching properties:\n *\n * Matching view element:\n *\n *\t\t// Match view element's name using String:\n *\t\tconst pattern = { name: 'p' };\n *\n *\t\t// or by providing RegExp:\n *\t\tconst pattern = { name: /^(ul|ol)$/ };\n *\n *\t\t// The name can also be skipped to match any view element with matching attributes:\n *\t\tconst pattern = {\n *\t\t\tattributes: {\n *\t\t\t\t'title': true\n *\t\t\t}\n *\t\t};\n *\n * Matching view element attributes:\n *\n *\t\t// Match view element with any attribute value.\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tattributes: true\n *\t\t};\n *\n *\t\t// Match view element which has matching attributes (String).\n *\t\tconst pattern = {\n *\t\t\tname: 'figure',\n *\t\t\tattributes: 'title' // Match title attribute (can be empty).\n *\t\t};\n *\n *\t\t// Match view element which has matching attributes (RegExp).\n *\t\tconst pattern = {\n *\t\t\tname: 'figure',\n *\t\t\tattributes: /^data-.*$/ // Match attributes starting with `data-` e.g. `data-foo` with any value (can be empty).\n *\t\t};\n *\n *\t\t// Match view element which has matching attributes (Object).\n *\t\tconst pattern = {\n *\t\t\tname: 'figure',\n *\t\t\tattributes: {\n *\t\t\t\ttitle: 'foobar',           // Match `title` attribute with 'foobar' value.\n *\t\t\t\talt: true,                 // Match `alt` attribute with any value (can be empty).\n *\t\t\t\t'data-type': /^(jpg|png)$/ // Match `data-type` attribute with `jpg` or `png` value.\n *\t\t\t}\n *\t\t};\n *\n *\t\t// Match view element which has matching attributes (Array).\n *\t\tconst pattern = {\n *\t\t\tname: 'figure',\n *\t\t\tattributes: [\n *\t\t\t\t'title',    // Match `title` attribute (can be empty).\n *\t\t\t\t/^data-*$/ // Match attributes starting with `data-` e.g. `data-foo` with any value (can be empty).\n *\t\t\t]\n *\t\t};\n *\n *\t\t// Match view element which has matching attributes (key-value pairs).\n *\t\tconst pattern = {\n *\t\t\tname: 'input',\n *\t\t\tattributes: [\n *\t\t\t\t{\n *\t\t\t\t\tkey: 'type',                     // Match `type` as an attribute key.\n *\t\t\t\t\tvalue: /^(text|number|date)$/\t // Match `text`, `number` or `date` values.\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tkey: /^data-.*$/,                // Match attributes starting with `data-` e.g. `data-foo`.\n *\t\t\t\t\tvalue: true                      // Match any value (can be empty).\n *\t\t\t\t}\n *\t\t\t]\n *\t\t};\n *\n * Matching view element styles:\n *\n *\t\t// Match view element with any style.\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tstyles: true\n *\t\t};\n *\n *\t\t// Match view element which has matching styles (String).\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tstyles: 'color' // Match attributes with `color` style.\n *\t\t};\n *\n *\t\t// Match view element which has matching styles (RegExp).\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tstyles: /^border.*$/ // Match view element with any border style.\n *\t\t};\n *\n *\t\t// Match view element which has matching styles (Object).\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tstyles: {\n *\t\t\t\tcolor: /rgb\\((\\d{1,3}), (\\d{1,3}), (\\d{1,3})\\)/, // Match `color` in RGB format only.\n *\t\t\t\t'font-weight': 600,                              // Match `font-weight` only if it's `600`.\n *\t\t\t\t'text-decoration': true                          // Match any text decoration.\n *\t\t\t}\n *\t\t};\n *\n *\t\t// Match view element which has matching styles (Array).\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tstyles: [\n *\t\t\t\t'color',      // Match `color` with any value.\n *\t\t\t\t/^border.*$/ // Match all border properties.\n *\t\t\t]\n *\t\t};\n *\n *\t\t// Match view element which has matching styles (key-value pairs).\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tstyles: [\n *\t\t\t\t{\n *\t\t\t\t\tkey: 'color',                                  \t\t// Match `color` as an property key.\n *\t\t\t\t\tvalue: /rgb\\((\\d{1,3}), (\\d{1,3}), (\\d{1,3})\\)/\t\t// Match RGB format only.\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tkey: /^border.*$/, // Match any border style.\n *\t\t\t\t\tvalue: true        // Match any value.\n *\t\t\t\t}\n *\t\t\t]\n *\t\t};\n *\n * Matching view element classes:\n *\n *\t\t// Match view element with any class.\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tclasses: true\n *\t\t};\n *\n *\t\t// Match view element which has matching class (String).\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tclasses: 'highlighted' // Match `highlighted` class.\n *\t\t};\n *\n *\t\t// Match view element which has matching classes (RegExp).\n *\t\tconst pattern = {\n *\t\t\tname: 'figure',\n *\t\t\tclasses: /^image-side-(left|right)$/ // Match `image-side-left` or `image-side-right` class.\n *\t\t};\n *\n *\t\t// Match view element which has matching classes (Object).\n *\t\tconst pattern = {\n *\t\t\tname: 'p',\n *\t\t\tclasses: {\n *\t\t\t\thighlighted: true, // Match `highlighted` class.\n *\t\t\t\tmarker: true       // Match `marker` class.\n *\t\t\t}\n *\t\t};\n *\n *\t\t// Match view element which has matching classes (Array).\n *\t\tconst pattern = {\n *\t\t\tname: 'figure',\n *\t\t\tclasses: [\n *\t\t\t\t'image',                    // Match `image` class.\n *\t\t\t\t/^image-side-(left|right)$/ // Match `image-side-left` or `image-side-right` class.\n *\t\t\t]\n *\t\t};\n *\n *\t\t// Match view element which has matching classes (key-value pairs).\n *\t\tconst pattern = {\n *\t\t\tname: 'figure',\n *\t\t\tclasses: [\n *\t\t\t\t{\n *\t\t\t\t\tkey: 'image', // Match `image` class.\n *\t\t\t\t\tvalue: true\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tkey: /^image-side-(left|right)$/, // Match `image-side-left` or `image-side-right` class.\n *\t\t\t\t\tvalue: true\n *\t\t\t\t}\n *\t\t\t]\n *\t\t};\n *\n * Pattern can combine multiple properties allowing for more complex view element matching:\n *\n *\t\tconst pattern = {\n *\t\t\tname: 'span',\n *\t\t\tattributes: [ 'title' ],\n *\t\t\tstyles: {\n *\t\t\t\t'font-weight': 'bold'\n *\t\t\t},\n *\t\t\tclasses: 'highlighted'\n *\t\t};\n *\n * If `MatcherPattern` is given as a `Function`, the function takes a view element as a first and only parameter and\n * the function should decide whether that element matches. If so, it should return what part of the view element has been matched.\n * Otherwise, the function should return `null`. The returned result will be included in `match` property of the object\n * returned by {@link ~Matcher#match} call.\n *\n *\t\t// Match an empty <div> element.\n *\t\tconst pattern = element => {\n *\t\t\tif ( element.name == 'div' && element.childCount > 0 ) {\n *\t\t\t\t// Return which part of the element was matched.\n *\t\t\t\treturn { name: true };\n *\t\t\t}\n *\n *\t\t\treturn null;\n *\t\t};\n *\n *\t\t// Match a <p> element with big font (\"heading-like\" element).\n *\t\tconst pattern = element => {\n *\t\t\tif ( element.name == 'p' ) {\n *\t\t\t\tconst fontSize = element.getStyle( 'font-size' );\n *\t\t\t\tconst size = fontSize.match( /(\\d+)/px );\n *\n *\t\t\t\tif ( size && Number( size[ 1 ] ) > 26 ) {\n *\t\t\t\t\treturn { name: true, attributes: [ 'font-size' ] };\n *\t\t\t\t}\n *\t\t\t}\n *\n *\t\t\treturn null;\n *\t\t};\n *\n * `MatcherPattern` is defined in a way that it is a superset of {@link module:engine/view/elementdefinition~ElementDefinition},\n * that is, every `ElementDefinition` also can be used as a `MatcherPattern`.\n *\n * @typedef {String|RegExp|Object|Function} module:engine/view/matcher~MatcherPattern\n *\n * @property {String|RegExp} [name] View element name to match.\n * @property {Boolean|String|RegExp|Object|Array.<String|RegExp|Object>} [classes] View element's classes to match.\n * @property {Boolean|String|RegExp|Object|Array.<String|RegExp|Object>} [styles] View element's styles to match.\n * @property {Boolean|String|RegExp|Object|Array.<String|RegExp|Object>} [attributes] View element's attributes to match.\n */\n\nexport type MatcherPattern =\n\tstring |\n\tRegExp |\n\t( ( element: Element ) => Match | null ) |\n\t{\n\t\tname?: string | RegExp;\n\t\tclasses?: ClassPatterns;\n\t\tstyles?: PropertyPatterns;\n\t\tattributes?: PropertyPatterns;\n\t};\n\nexport interface Match {\n\tname?: boolean;\n\tattributes?: Array<string>;\n\tclasses?: Array<string>;\n\tstyles?: Array<string>;\n}\n\nexport interface MatchResult {\n\telement: Element;\n\tpattern: Exclude<MatcherPattern, string | RegExp>;\n\tmatch: Match;\n}\n\nexport type PropertyPatterns =\n\ttrue |\n\tstring |\n\tRegExp |\n\tRecord<string, true | string | RegExp> |\n\tArray<string | RegExp | { key: string | RegExp; value: string | RegExp }>;\n\nexport type ClassPatterns =\n\ttrue |\n\tstring |\n\tRegExp |\n\tRecord<string, true> |\n\tArray<string | RegExp>;\n\n/**\n * The key-value matcher pattern is missing key or value. Both must be present.\n * Refer the documentation: {@link module:engine/view/matcher~MatcherPattern}.\n *\n * @param {Object} pattern Pattern with missing properties.\n * @error matcher-pattern-missing-key-or-value\n */\n\n/**\n * The key-value matcher pattern for `attributes` option is using deprecated `style` key.\n *\n * Use `styles` matcher pattern option instead:\n *\n * \t\t// Instead of:\n * \t\tconst pattern = {\n * \t\t\tattributes: {\n * \t\t\t\tkey1: 'value1',\n * \t\t\t\tkey2: 'value2',\n * \t\t\t\tstyle: /^border.*$/\n * \t\t\t}\n * \t\t}\n *\n * \t\t// Use:\n * \t\tconst pattern = {\n * \t\t\tattributes: {\n * \t\t\t\tkey1: 'value1',\n * \t\t\t\tkey2: 'value2'\n * \t\t\t},\n * \t\t\tstyles: /^border.*$/\n * \t\t}\n *\n * Refer to the {@glink updating/migration-to-29##migration-to-ckeditor-5-v2910 Migration to v29.1.0} guide\n * and {@link module:engine/view/matcher~MatcherPattern} documentation.\n *\n * @param {Object} pattern Pattern with missing properties.\n * @error matcher-pattern-deprecated-attributes-style-key\n */\n\n/**\n * The key-value matcher pattern for `attributes` option is using deprecated `class` key.\n *\n * Use `classes` matcher pattern option instead:\n *\n * \t\t// Instead of:\n * \t\tconst pattern = {\n * \t\t\tattributes: {\n * \t\t\t\tkey1: 'value1',\n * \t\t\t\tkey2: 'value2',\n * \t\t\t\tclass: 'foobar'\n * \t\t\t}\n * \t\t}\n *\n * \t\t// Use:\n * \t\tconst pattern = {\n * \t\t\tattributes: {\n * \t\t\t\tkey1: 'value1',\n * \t\t\t\tkey2: 'value2'\n * \t\t\t},\n * \t\t\tclasses: 'foobar'\n * \t\t}\n *\n * Refer to the {@glink updating/migration-to-29##migration-to-ckeditor-5-v2910 Migration to v29.1.0} guide\n * and the {@link module:engine/view/matcher~MatcherPattern} documentation.\n *\n * @param {Object} pattern Pattern with missing properties.\n * @error matcher-pattern-deprecated-attributes-class-key\n */\n","import baseGetTag from './_baseGetTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n  return typeof value == 'symbol' ||\n    (isObjectLike(value) && baseGetTag(value) == symbolTag);\n}\n\nexport default isSymbol;\n","import isArray from './isArray.js';\nimport isSymbol from './isSymbol.js';\n\n/** Used to match property names within property paths. */\nvar reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n    reIsPlainProp = /^\\w*$/;\n\n/**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\nfunction isKey(value, object) {\n  if (isArray(value)) {\n    return false;\n  }\n  var type = typeof value;\n  if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n      value == null || isSymbol(value)) {\n    return true;\n  }\n  return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n    (object != null && value in Object(object));\n}\n\nexport default isKey;\n","import MapCache from './_MapCache.js';\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\nfunction memoize(func, resolver) {\n  if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n    throw new TypeError(FUNC_ERROR_TEXT);\n  }\n  var memoized = function() {\n    var args = arguments,\n        key = resolver ? resolver.apply(this, args) : args[0],\n        cache = memoized.cache;\n\n    if (cache.has(key)) {\n      return cache.get(key);\n    }\n    var result = func.apply(this, args);\n    memoized.cache = cache.set(key, result) || cache;\n    return result;\n  };\n  memoized.cache = new (memoize.Cache || MapCache);\n  return memoized;\n}\n\n// Expose `MapCache`.\nmemoize.Cache = MapCache;\n\nexport default memoize;\n","import memoizeCapped from './_memoizeCapped.js';\n\n/** Used to match property names within property paths. */\nvar rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n/** Used to match backslashes in property paths. */\nvar reEscapeChar = /\\\\(\\\\)?/g;\n\n/**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\nvar stringToPath = memoizeCapped(function(string) {\n  var result = [];\n  if (string.charCodeAt(0) === 46 /* . */) {\n    result.push('');\n  }\n  string.replace(rePropName, function(match, number, quote, subString) {\n    result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n  });\n  return result;\n});\n\nexport default stringToPath;\n","import memoize from './memoize.js';\n\n/** Used as the maximum memoize cache size. */\nvar MAX_MEMOIZE_SIZE = 500;\n\n/**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\nfunction memoizeCapped(func) {\n  var result = memoize(func, function(key) {\n    if (cache.size === MAX_MEMOIZE_SIZE) {\n      cache.clear();\n    }\n    return key;\n  });\n\n  var cache = result.cache;\n  return result;\n}\n\nexport default memoizeCapped;\n","/**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\nfunction arrayMap(array, iteratee) {\n  var index = -1,\n      length = array == null ? 0 : array.length,\n      result = Array(length);\n\n  while (++index < length) {\n    result[index] = iteratee(array[index], index, array);\n  }\n  return result;\n}\n\nexport default arrayMap;\n","import Symbol from './_Symbol.js';\nimport arrayMap from './_arrayMap.js';\nimport isArray from './isArray.js';\nimport isSymbol from './isSymbol.js';\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n    symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n/**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\nfunction baseToString(value) {\n  // Exit early for strings to avoid a performance hit in some environments.\n  if (typeof value == 'string') {\n    return value;\n  }\n  if (isArray(value)) {\n    // Recursively convert values (susceptible to call stack limits).\n    return arrayMap(value, baseToString) + '';\n  }\n  if (isSymbol(value)) {\n    return symbolToString ? symbolToString.call(value) : '';\n  }\n  var result = (value + '');\n  return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nexport default baseToString;\n","import baseToString from './_baseToString.js';\n\n/**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\nfunction toString(value) {\n  return value == null ? '' : baseToString(value);\n}\n\nexport default toString;\n","import isArray from './isArray.js';\nimport isKey from './_isKey.js';\nimport stringToPath from './_stringToPath.js';\nimport toString from './toString.js';\n\n/**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\nfunction castPath(value, object) {\n  if (isArray(value)) {\n    return value;\n  }\n  return isKey(value, object) ? [value] : stringToPath(toString(value));\n}\n\nexport default castPath;\n","/**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\nfunction last(array) {\n  var length = array == null ? 0 : array.length;\n  return length ? array[length - 1] : undefined;\n}\n\nexport default last;\n","import isSymbol from './isSymbol.js';\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\nfunction toKey(value) {\n  if (typeof value == 'string' || isSymbol(value)) {\n    return value;\n  }\n  var result = (value + '');\n  return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nexport default toKey;\n","import castPath from './_castPath.js';\nimport toKey from './_toKey.js';\n\n/**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\nfunction baseGet(object, path) {\n  path = castPath(path, object);\n\n  var index = 0,\n      length = path.length;\n\n  while (object != null && index < length) {\n    object = object[toKey(path[index++])];\n  }\n  return (index && index == length) ? object : undefined;\n}\n\nexport default baseGet;\n","/**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\nfunction baseSlice(array, start, end) {\n  var index = -1,\n      length = array.length;\n\n  if (start < 0) {\n    start = -start > length ? 0 : (length + start);\n  }\n  end = end > length ? length : end;\n  if (end < 0) {\n    end += length;\n  }\n  length = start > end ? 0 : ((end - start) >>> 0);\n  start >>>= 0;\n\n  var result = Array(length);\n  while (++index < length) {\n    result[index] = array[index + start];\n  }\n  return result;\n}\n\nexport default baseSlice;\n","import baseGet from './_baseGet.js';\nimport baseSlice from './_baseSlice.js';\n\n/**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\nfunction parent(object, path) {\n  return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n}\n\nexport default parent;\n","import castPath from './_castPath.js';\nimport last from './last.js';\nimport parent from './_parent.js';\nimport toKey from './_toKey.js';\n\n/**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\nfunction baseUnset(object, path) {\n  path = castPath(path, object);\n  object = parent(object, path);\n  return object == null || delete object[toKey(last(path))];\n}\n\nexport default baseUnset;\n","import baseUnset from './_baseUnset.js';\n\n/**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\nfunction unset(object, path) {\n  return object == null ? true : baseUnset(object, path);\n}\n\nexport default unset;\n","import baseGet from './_baseGet.js';\n\n/**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\nfunction get(object, path, defaultValue) {\n  var result = object == null ? undefined : baseGet(object, path);\n  return result === undefined ? defaultValue : result;\n}\n\nexport default get;\n","import baseAssignValue from './_baseAssignValue.js';\nimport eq from './eq.js';\n\n/**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignMergeValue(object, key, value) {\n  if ((value !== undefined && !eq(object[key], value)) ||\n      (value === undefined && !(key in object))) {\n    baseAssignValue(object, key, value);\n  }\n}\n\nexport default assignMergeValue;\n","import createBaseFor from './_createBaseFor.js';\n\n/**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nexport default baseFor;\n","/**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n  return function(object, iteratee, keysFunc) {\n    var index = -1,\n        iterable = Object(object),\n        props = keysFunc(object),\n        length = props.length;\n\n    while (length--) {\n      var key = props[fromRight ? length : ++index];\n      if (iteratee(iterable[key], key, iterable) === false) {\n        break;\n      }\n    }\n    return object;\n  };\n}\n\nexport default createBaseFor;\n","import isArrayLike from './isArrayLike.js';\nimport isObjectLike from './isObjectLike.js';\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n *  else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n  return isObjectLike(value) && isArrayLike(value);\n}\n\nexport default isArrayLikeObject;\n","/**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction safeGet(object, key) {\n  if (key === 'constructor' && typeof object[key] === 'function') {\n    return;\n  }\n\n  if (key == '__proto__') {\n    return;\n  }\n\n  return object[key];\n}\n\nexport default safeGet;\n","import copyObject from './_copyObject.js';\nimport keysIn from './keysIn.js';\n\n/**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n *   this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\nfunction toPlainObject(value) {\n  return copyObject(value, keysIn(value));\n}\n\nexport default toPlainObject;\n","import assignMergeValue from './_assignMergeValue.js';\nimport cloneBuffer from './_cloneBuffer.js';\nimport cloneTypedArray from './_cloneTypedArray.js';\nimport copyArray from './_copyArray.js';\nimport initCloneObject from './_initCloneObject.js';\nimport isArguments from './isArguments.js';\nimport isArray from './isArray.js';\nimport isArrayLikeObject from './isArrayLikeObject.js';\nimport isBuffer from './isBuffer.js';\nimport isFunction from './isFunction.js';\nimport isObject from './isObject.js';\nimport isPlainObject from './isPlainObject.js';\nimport isTypedArray from './isTypedArray.js';\nimport safeGet from './_safeGet.js';\nimport toPlainObject from './toPlainObject.js';\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n *  counterparts.\n */\nfunction baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n  var objValue = safeGet(object, key),\n      srcValue = safeGet(source, key),\n      stacked = stack.get(srcValue);\n\n  if (stacked) {\n    assignMergeValue(object, key, stacked);\n    return;\n  }\n  var newValue = customizer\n    ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n    : undefined;\n\n  var isCommon = newValue === undefined;\n\n  if (isCommon) {\n    var isArr = isArray(srcValue),\n        isBuff = !isArr && isBuffer(srcValue),\n        isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n    newValue = srcValue;\n    if (isArr || isBuff || isTyped) {\n      if (isArray(objValue)) {\n        newValue = objValue;\n      }\n      else if (isArrayLikeObject(objValue)) {\n        newValue = copyArray(objValue);\n      }\n      else if (isBuff) {\n        isCommon = false;\n        newValue = cloneBuffer(srcValue, true);\n      }\n      else if (isTyped) {\n        isCommon = false;\n        newValue = cloneTypedArray(srcValue, true);\n      }\n      else {\n        newValue = [];\n      }\n    }\n    else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n      newValue = objValue;\n      if (isArguments(objValue)) {\n        newValue = toPlainObject(objValue);\n      }\n      else if (!isObject(objValue) || isFunction(objValue)) {\n        newValue = initCloneObject(srcValue);\n      }\n    }\n    else {\n      isCommon = false;\n    }\n  }\n  if (isCommon) {\n    // Recursively merge objects and arrays (susceptible to call stack limits).\n    stack.set(srcValue, newValue);\n    mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n    stack['delete'](srcValue);\n  }\n  assignMergeValue(object, key, newValue);\n}\n\nexport default baseMergeDeep;\n","import Stack from './_Stack.js';\nimport assignMergeValue from './_assignMergeValue.js';\nimport baseFor from './_baseFor.js';\nimport baseMergeDeep from './_baseMergeDeep.js';\nimport isObject from './isObject.js';\nimport keysIn from './keysIn.js';\nimport safeGet from './_safeGet.js';\n\n/**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n *  counterparts.\n */\nfunction baseMerge(object, source, srcIndex, customizer, stack) {\n  if (object === source) {\n    return;\n  }\n  baseFor(source, function(srcValue, key) {\n    stack || (stack = new Stack);\n    if (isObject(srcValue)) {\n      baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n    }\n    else {\n      var newValue = customizer\n        ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n        : undefined;\n\n      if (newValue === undefined) {\n        newValue = srcValue;\n      }\n      assignMergeValue(object, key, newValue);\n    }\n  }, keysIn);\n}\n\nexport default baseMerge;\n","/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n  return value;\n}\n\nexport default identity;\n","/**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\nfunction apply(func, thisArg, args) {\n  switch (args.length) {\n    case 0: return func.call(thisArg);\n    case 1: return func.call(thisArg, args[0]);\n    case 2: return func.call(thisArg, args[0], args[1]);\n    case 3: return func.call(thisArg, args[0], args[1], args[2]);\n  }\n  return func.apply(thisArg, args);\n}\n\nexport default apply;\n","import apply from './_apply.js';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\nfunction overRest(func, start, transform) {\n  start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n  return function() {\n    var args = arguments,\n        index = -1,\n        length = nativeMax(args.length - start, 0),\n        array = Array(length);\n\n    while (++index < length) {\n      array[index] = args[start + index];\n    }\n    index = -1;\n    var otherArgs = Array(start + 1);\n    while (++index < start) {\n      otherArgs[index] = args[index];\n    }\n    otherArgs[start] = transform(array);\n    return apply(func, this, otherArgs);\n  };\n}\n\nexport default overRest;\n","/**\n * Creates a function that returns `value`.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {*} value The value to return from the new function.\n * @returns {Function} Returns the new constant function.\n * @example\n *\n * var objects = _.times(2, _.constant({ 'a': 1 }));\n *\n * console.log(objects);\n * // => [{ 'a': 1 }, { 'a': 1 }]\n *\n * console.log(objects[0] === objects[1]);\n * // => true\n */\nfunction constant(value) {\n  return function() {\n    return value;\n  };\n}\n\nexport default constant;\n","import constant from './constant.js';\nimport defineProperty from './_defineProperty.js';\nimport identity from './identity.js';\n\n/**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar baseSetToString = !defineProperty ? identity : function(func, string) {\n  return defineProperty(func, 'toString', {\n    'configurable': true,\n    'enumerable': false,\n    'value': constant(string),\n    'writable': true\n  });\n};\n\nexport default baseSetToString;\n","/** Used to detect hot functions by number of calls within a span of milliseconds. */\nvar HOT_COUNT = 800,\n    HOT_SPAN = 16;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeNow = Date.now;\n\n/**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\nfunction shortOut(func) {\n  var count = 0,\n      lastCalled = 0;\n\n  return function() {\n    var stamp = nativeNow(),\n        remaining = HOT_SPAN - (stamp - lastCalled);\n\n    lastCalled = stamp;\n    if (remaining > 0) {\n      if (++count >= HOT_COUNT) {\n        return arguments[0];\n      }\n    } else {\n      count = 0;\n    }\n    return func.apply(undefined, arguments);\n  };\n}\n\nexport default shortOut;\n","import baseSetToString from './_baseSetToString.js';\nimport shortOut from './_shortOut.js';\n\n/**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar setToString = shortOut(baseSetToString);\n\nexport default setToString;\n","import identity from './identity.js';\nimport overRest from './_overRest.js';\nimport setToString from './_setToString.js';\n\n/**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\nfunction baseRest(func, start) {\n  return setToString(overRest(func, start, identity), func + '');\n}\n\nexport default baseRest;\n","import eq from './eq.js';\nimport isArrayLike from './isArrayLike.js';\nimport isIndex from './_isIndex.js';\nimport isObject from './isObject.js';\n\n/**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n *  else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n  if (!isObject(object)) {\n    return false;\n  }\n  var type = typeof index;\n  if (type == 'number'\n        ? (isArrayLike(object) && isIndex(index, object.length))\n        : (type == 'string' && index in object)\n      ) {\n    return eq(object[index], value);\n  }\n  return false;\n}\n\nexport default isIterateeCall;\n","import baseRest from './_baseRest.js';\nimport isIterateeCall from './_isIterateeCall.js';\n\n/**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n  return baseRest(function(object, sources) {\n    var index = -1,\n        length = sources.length,\n        customizer = length > 1 ? sources[length - 1] : undefined,\n        guard = length > 2 ? sources[2] : undefined;\n\n    customizer = (assigner.length > 3 && typeof customizer == 'function')\n      ? (length--, customizer)\n      : undefined;\n\n    if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n      customizer = length < 3 ? undefined : customizer;\n      length = 1;\n    }\n    object = Object(object);\n    while (++index < length) {\n      var source = sources[index];\n      if (source) {\n        assigner(object, source, index, customizer);\n      }\n    }\n    return object;\n  });\n}\n\nexport default createAssigner;\n","import baseMerge from './_baseMerge.js';\nimport createAssigner from './_createAssigner.js';\n\n/**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n *   'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n *   'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\nvar merge = createAssigner(function(object, source, srcIndex) {\n  baseMerge(object, source, srcIndex);\n});\n\nexport default merge;\n","import assignValue from './_assignValue.js';\nimport castPath from './_castPath.js';\nimport isIndex from './_isIndex.js';\nimport isObject from './isObject.js';\nimport toKey from './_toKey.js';\n\n/**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\nfunction baseSet(object, path, value, customizer) {\n  if (!isObject(object)) {\n    return object;\n  }\n  path = castPath(path, object);\n\n  var index = -1,\n      length = path.length,\n      lastIndex = length - 1,\n      nested = object;\n\n  while (nested != null && ++index < length) {\n    var key = toKey(path[index]),\n        newValue = value;\n\n    if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n      return object;\n    }\n\n    if (index != lastIndex) {\n      var objValue = nested[key];\n      newValue = customizer ? customizer(objValue, key, nested) : undefined;\n      if (newValue === undefined) {\n        newValue = isObject(objValue)\n          ? objValue\n          : (isIndex(path[index + 1]) ? [] : {});\n      }\n    }\n    assignValue(nested, key, newValue);\n    nested = nested[key];\n  }\n  return object;\n}\n\nexport default baseSet;\n","import baseSet from './_baseSet.js';\n\n/**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\nfunction set(object, path, value) {\n  return object == null ? object : baseSet(object, path, value);\n}\n\nexport default set;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/stylesmap\n */\n\nimport { get, isObject, merge, set, unset } from 'lodash-es';\n\n/**\n * Styles map. Allows handling (adding, removing, retrieving) a set of style rules (usually, of an element).\n *\n * The styles map is capable of normalizing style names so e.g. the following operations are possible:\n */\nexport default class StylesMap {\n\tprivate _styles: Record<string, string>;\n\tprivate readonly _styleProcessor: StylesProcessor;\n\n\t/**\n\t * Creates Styles instance.\n\t *\n\t * @param {module:engine/view/stylesmap~StylesProcessor} styleProcessor\n\t */\n\tconstructor( styleProcessor: StylesProcessor ) {\n\t\t/**\n\t\t * Keeps an internal representation of styles map. Normalized styles are kept as object tree to allow unified modification and\n\t\t * value access model using lodash's get, set, unset, etc methods.\n\t\t *\n\t\t * When no style processor rules are defined it acts as simple key-value storage.\n\t\t *\n\t\t * @private\n\t\t * @type {Object}\n\t\t */\n\t\tthis._styles = {};\n\n\t\t/**\n\t\t * An instance of the {@link module:engine/view/stylesmap~StylesProcessor}.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/view/stylesmap~StylesProcessor}\n\t\t */\n\t\tthis._styleProcessor = styleProcessor;\n\t}\n\n\t/**\n\t * Returns true if style map has no styles set.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isEmpty(): boolean {\n\t\tconst entries = Object.entries( this._styles );\n\t\tconst from = Array.from( entries );\n\n\t\treturn !from.length;\n\t}\n\n\t/**\n\t * Number of styles defined.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get size(): number {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn 0;\n\t\t}\n\n\t\treturn this.getStyleNames().length;\n\t}\n\n\t/**\n\t * Set styles map to a new value.\n\t *\n\t *\t\tstyles.setTo( 'border:1px solid blue;margin-top:1px;' );\n\t *\n\t * @param {String} inlineStyle\n\t */\n\tpublic setTo( inlineStyle: string ): void {\n\t\tthis.clear();\n\n\t\tconst parsedStyles = Array.from( parseInlineStyles( inlineStyle ).entries() );\n\n\t\tfor ( const [ key, value ] of parsedStyles ) {\n\t\t\tthis._styleProcessor.toNormalizedForm( key, value, this._styles );\n\t\t}\n\t}\n\n\t/**\n\t * Checks if a given style is set.\n\t *\n\t *\t\tstyles.setTo( 'margin-left:1px;' );\n\t *\n\t *\t\tstyles.has( 'margin-left' );    // -> true\n\t *\t\tstyles.has( 'padding' );        // -> false\n\t *\n\t * **Note**: This check supports normalized style names.\n\t *\n\t *\t\t// Enable 'margin' shorthand processing:\n\t *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t *\t\tstyles.setTo( 'margin:2px;' );\n\t *\n\t *\t\tstyles.has( 'margin' );         // -> true\n\t *\t\tstyles.has( 'margin-top' );     // -> true\n\t *\t\tstyles.has( 'margin-left' );    // -> true\n\t *\n\t *\t\tstyles.remove( 'margin-top' );\n\t *\n\t *\t\tstyles.has( 'margin' );         // -> false\n\t *\t\tstyles.has( 'margin-top' );     // -> false\n\t *\t\tstyles.has( 'margin-left' );    // -> true\n\t *\n\t * @param {String} name Style name.\n\t * @returns {Boolean}\n\t */\n\tpublic has( name: string ): boolean {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst styles = this._styleProcessor.getReducedForm( name, this._styles );\n\n\t\tconst propertyDescriptor = styles.find( ( [ property ] ) => property === name );\n\n\t\t// Only return a value if it is set;\n\t\treturn Array.isArray( propertyDescriptor );\n\t}\n\n\t/**\n\t * Sets a given style.\n\t *\n\t * Can insert one by one:\n\t *\n\t *\t\tstyles.set( 'color', 'blue' );\n\t *\t\tstyles.set( 'margin-right', '1em' );\n\t *\n\t * or many styles at once:\n\t *\n\t *\t\tstyles.set( {\n\t *\t\t\tcolor: 'blue',\n\t *\t\t\t'margin-right': '1em'\n\t *\t\t} );\n\t *\n\t * ***Note**:* This method uses {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules\n\t * enabled style processor rules} to normalize passed values.\n\t *\n\t *\t\t// Enable 'margin' shorthand processing:\n\t *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t *\t\tstyles.set( 'margin', '2px' );\n\t *\n\t * The above code will set margin to:\n\t *\n\t *\t\tstyles.getNormalized( 'margin' );\n\t *\t\t// -> { top: '2px', right: '2px', bottom: '2px', left: '2px' }\n\t *\n\t * Which makes it possible to retrieve a \"sub-value\":\n\t *\n\t *\t\tstyles.get( 'margin-left' );       // -> '2px'\n\t *\n\t * Or modify it:\n\t *\n\t *\t\tstyles.remove( 'margin-left' );\n\t *\n\t *\t\tstyles.getNormalized( 'margin' );  // -> { top: '1px', bottom: '1px', right: '1px' }\n\t *\t\tstyles.toString();                 // -> 'margin-bottom:1px;margin-right:1px;margin-top:1px;'\n\t *\n\t * This method also allows to set normalized values directly (if a particular styles processor rule was enabled):\n\t *\n\t *\t\tstyles.set( 'border-color', { top: 'blue' } );\n\t *\t\tstyles.set( 'margin', { right: '2em' } );\n\t *\n\t *\t\tstyles.toString();                 // -> 'border-color-top:blue;margin-right:2em;'\n\t *\n\t * @param {String|Object} nameOrObject Style property name or object with multiple properties.\n\t * @param {String|Object} valueOrObject Value to set.\n\t */\n\tpublic set( nameOrObject: string, valueOrObject: StyleValue ): void;\n\tpublic set( nameOrObject: Styles ): void;\n\tpublic set( nameOrObject: string | Styles, valueOrObject?: StyleValue ): void {\n\t\tif ( isObject( nameOrObject ) ) {\n\t\t\tfor ( const [ key, value ] of Object.entries( nameOrObject ) ) {\n\t\t\t\tthis._styleProcessor.toNormalizedForm( key, value, this._styles );\n\t\t\t}\n\t\t} else {\n\t\t\tthis._styleProcessor.toNormalizedForm( nameOrObject, valueOrObject!, this._styles );\n\t\t}\n\t}\n\n\t/**\n\t * Removes given style.\n\t *\n\t *\t\tstyles.setTo( 'background:#f00;margin-right:2px;' );\n\t *\n\t *\t\tstyles.remove( 'background' );\n\t *\n\t *\t\tstyles.toString();   // -> 'margin-right:2px;'\n\t *\n\t * ***Note**:* This method uses {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules\n\t * enabled style processor rules} to normalize passed values.\n\t *\n\t *\t\t// Enable 'margin' shorthand processing:\n\t *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t *\t\tstyles.setTo( 'margin:1px' );\n\t *\n\t *\t\tstyles.remove( 'margin-top' );\n\t *\t\tstyles.remove( 'margin-right' );\n\t *\n\t *\t\tstyles.toString(); // -> 'margin-bottom:1px;margin-left:1px;'\n\t *\n\t * @param {String} name Style name.\n\t */\n\tpublic remove( name: string ): void {\n\t\tconst path = toPath( name );\n\n\t\tunset( this._styles, path );\n\t\tdelete this._styles[ name ];\n\n\t\tthis._cleanEmptyObjectsOnPath( path );\n\t}\n\n\t/**\n\t * Returns a normalized style object or a single value.\n\t *\n\t *\t\t// Enable 'margin' shorthand processing:\n\t *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t *\t\tconst styles = new Styles();\n\t *\t\tstyles.setTo( 'margin:1px 2px 3em;' );\n\t *\n\t *\t\tstyles.getNormalized( 'margin' );\n\t *\t\t// will log:\n\t *\t\t// {\n\t *\t\t//     top: '1px',\n\t *\t\t//     right: '2px',\n\t *\t\t//     bottom: '3em',\n\t *\t\t//     left: '2px'     // normalized value from margin shorthand\n\t *\t\t// }\n\t *\n\t *\t\tstyles.getNormalized( 'margin-left' ); // -> '2px'\n\t *\n\t * **Note**: This method will only return normalized styles if a style processor was defined.\n\t *\n\t * @param {String} name Style name.\n\t * @returns {Object|String|undefined}\n\t */\n\tpublic getNormalized( name?: string ): StyleValue {\n\t\treturn this._styleProcessor.getNormalized( name, this._styles );\n\t}\n\n\t/**\n\t * Returns a normalized style string. Styles are sorted by name.\n\t *\n\t *\t\tstyles.set( 'margin' , '1px' );\n\t *\t\tstyles.set( 'background', '#f00' );\n\t *\n\t *\t\tstyles.toString(); // -> 'background:#f00;margin:1px;'\n\t *\n\t * **Note**: This method supports normalized styles if defined.\n\t *\n\t *\t\t// Enable 'margin' shorthand processing:\n\t *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t *\t\tstyles.set( 'margin' , '1px' );\n\t *\t\tstyles.set( 'background', '#f00' );\n\t *\t\tstyles.remove( 'margin-top' );\n\t *\t\tstyles.remove( 'margin-right' );\n\t *\n\t *\t\tstyles.toString(); // -> 'background:#f00;margin-bottom:1px;margin-left:1px;'\n\t *\n\t * @returns {String}\n\t */\n\tpublic toString(): string {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn '';\n\t\t}\n\n\t\treturn this._getStylesEntries()\n\t\t\t.map( arr => arr.join( ':' ) )\n\t\t\t.sort()\n\t\t\t.join( ';' ) + ';';\n\t}\n\n\t/**\n\t * Returns property as a value string or undefined if property is not set.\n\t *\n\t *\t\t// Enable 'margin' shorthand processing:\n\t *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t *\t\tconst styles = new Styles();\n\t *\t\tstyles.setTo( 'margin:1px;' );\n\t *\t\tstyles.set( 'margin-bottom', '3em' );\n\t *\n\t *\t\tstyles.getAsString( 'margin' ); // -> 'margin: 1px 1px 3em;'\n\t *\n\t * Note, however, that all sub-values must be set for the longhand property name to return a value:\n\t *\n\t *\t\tconst styles = new Styles();\n\t *\t\tstyles.setTo( 'margin:1px;' );\n\t *\t\tstyles.remove( 'margin-bottom' );\n\t *\n\t *\t\tstyles.getAsString( 'margin' ); // -> undefined\n\t *\n\t * In the above scenario, it is not possible to return a `margin` value, so `undefined` is returned.\n\t * Instead, you should use:\n\t *\n\t *\t\tconst styles = new Styles();\n\t *\t\tstyles.setTo( 'margin:1px;' );\n\t *\t\tstyles.remove( 'margin-bottom' );\n\t *\n\t *\t\tfor ( const styleName of styles.getStyleNames() ) {\n\t *\t\t\tconsole.log( styleName, styles.getAsString( styleName ) );\n\t *\t\t}\n\t *\t\t// 'margin-top', '1px'\n\t *\t\t// 'margin-right', '1px'\n\t *\t\t// 'margin-left', '1px'\n\t *\n\t * In general, it is recommend to iterate over style names like in the example above. This way, you will always get all\n\t * the currently set style values. So, if all the 4 margin values would be set\n\t * the for-of loop above would yield only `'margin'`, `'1px'`:\n\t *\n\t *\t\tconst styles = new Styles();\n\t *\t\tstyles.setTo( 'margin:1px;' );\n\t *\n\t *\t\tfor ( const styleName of styles.getStyleNames() ) {\n\t *\t\t\tconsole.log( styleName, styles.getAsString( styleName ) );\n\t *\t\t}\n\t *\t\t// 'margin', '1px'\n\t *\n\t * **Note**: To get a normalized version of a longhand property use the {@link #getNormalized `#getNormalized()`} method.\n\t *\n\t * @param {String} propertyName\n\t * @returns {String|undefined}\n\t */\n\tpublic getAsString( propertyName: string ): string | undefined {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( this._styles[ propertyName ] && !isObject( this._styles[ propertyName ] ) ) {\n\t\t\t// Try return styles set directly - values that are not parsed.\n\t\t\treturn this._styles[ propertyName ];\n\t\t}\n\n\t\tconst styles = this._styleProcessor.getReducedForm( propertyName, this._styles );\n\n\t\tconst propertyDescriptor = styles.find( ( [ property ] ) => property === propertyName );\n\n\t\t// Only return a value if it is set;\n\t\tif ( Array.isArray( propertyDescriptor ) ) {\n\t\t\treturn propertyDescriptor[ 1 ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns all style properties names as they would appear when using {@link #toString `#toString()`}.\n\t *\n\t * When `expand` is set to true and there's a shorthand style property set, it will also return all equivalent styles:\n\t *\n\t * \t\tstylesMap.setTo( 'margin: 1em' )\n\t *\n\t * will be expanded to:\n\t *\n\t * \t\t[ 'margin', 'margin-top', 'margin-right', 'margin-bottom', 'margin-left' ]\n\t *\n\t * @param {Boolean} [expand=false] Expand shorthand style properties and all return equivalent style representations.\n\t * @returns {Array.<String>}\n\t */\n\tpublic getStyleNames( expand = false ): Array<string> {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tif ( expand ) {\n\t\t\treturn this._styleProcessor.getStyleNames( this._styles );\n\t\t}\n\n\t\tconst entries = this._getStylesEntries();\n\n\t\treturn entries.map( ( [ key ] ) => key );\n\t}\n\n\t/**\n\t * Removes all styles.\n\t */\n\tpublic clear(): void {\n\t\tthis._styles = {};\n\t}\n\n\t/**\n\t * Returns normalized styles entries for further processing.\n\t *\n\t * @private\n\t * @returns {Array.<module:engine/view/stylesmap~PropertyDescriptor>}\n\t */\n\tprivate _getStylesEntries(): Array<PropertyDescriptor> {\n\t\tconst parsed: Array<PropertyDescriptor> = [];\n\n\t\tconst keys = Object.keys( this._styles );\n\n\t\tfor ( const key of keys ) {\n\t\t\tparsed.push( ...this._styleProcessor.getReducedForm( key, this._styles ) );\n\t\t}\n\n\t\treturn parsed;\n\t}\n\n\t/**\n\t * Removes empty objects upon removing an entry from internal object.\n\t *\n\t * @param {String} path\n\t * @private\n\t */\n\tprivate _cleanEmptyObjectsOnPath( path: string ): void {\n\t\tconst pathParts = path.split( '.' );\n\t\tconst isChildPath = pathParts.length > 1;\n\n\t\tif ( !isChildPath ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst parentPath = pathParts.splice( 0, pathParts.length - 1 ).join( '.' );\n\n\t\tconst parentObject = get( this._styles, parentPath );\n\n\t\tif ( !parentObject ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst isParentEmpty = !Array.from( Object.keys( parentObject ) ).length;\n\n\t\tif ( isParentEmpty ) {\n\t\t\tthis.remove( parentPath );\n\t\t}\n\t}\n}\n\n/**\n * Style processor is responsible for writing and reading a normalized styles object.\n */\nexport class StylesProcessor {\n\tprivate readonly _normalizers: Map<string, Normalizer>;\n\tprivate readonly _extractors: Map<string, Extractor>;\n\tprivate readonly _reducers: Map<string, Reducer>;\n\tprivate readonly _consumables: Map<string, Array<string>>;\n\n\t/**\n\t * Creates StylesProcessor instance.\n\t *\n\t * @private\n\t */\n\tconstructor() {\n\t\tthis._normalizers = new Map();\n\t\tthis._extractors = new Map();\n\t\tthis._reducers = new Map();\n\t\tthis._consumables = new Map();\n\t}\n\n\t/**\n\t * Parse style string value to a normalized object and appends it to styles object.\n\t *\n\t *\t\tconst styles = {};\n\t *\n\t *\t\tstylesProcessor.toNormalizedForm( 'margin', '1px', styles );\n\t *\n\t *\t\t// styles will consist: { margin: { top: '1px', right: '1px', bottom: '1px', left: '1px; } }\n\t *\n\t * **Note**: To define normalizer callbacks use {@link #setNormalizer}.\n\t *\n\t * @param {String} name Name of style property.\n\t * @param {String} propertyValue Value of style property.\n\t * @param {Object} styles Object holding normalized styles.\n\t */\n\tpublic toNormalizedForm( name: string, propertyValue: StyleValue, styles: Styles ): void {\n\t\tif ( isObject( propertyValue ) ) {\n\t\t\tappendStyleValue( styles, toPath( name ), propertyValue );\n\n\t\t\treturn;\n\t\t}\n\n\t\tif ( this._normalizers.has( name ) ) {\n\t\t\tconst normalizer = this._normalizers.get( name )!;\n\n\t\t\tconst { path, value } = normalizer( propertyValue );\n\n\t\t\tappendStyleValue( styles, path, value );\n\t\t} else {\n\t\t\tappendStyleValue( styles, name, propertyValue );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a normalized version of a style property.\n\t *\t\tconst styles = {\n\t *\t\t\tmargin: { top: '1px', right: '1px', bottom: '1px', left: '1px; },\n\t *\t\t\tbackground: { color: '#f00' }\n\t *\t\t};\n\t *\n\t *\t\tstylesProcessor.getNormalized( 'background' );\n\t *\t\t// will return: { color: '#f00' }\n\t *\n\t *\t\tstylesProcessor.getNormalized( 'margin-top' );\n\t *\t\t// will return: '1px'\n\t *\n\t * **Note**: In some cases extracting single value requires defining an extractor callback {@link #setExtractor}.\n\t *\n\t * @param {String} name Name of style property.\n\t * @param {Object} styles Object holding normalized styles.\n\t * @returns {*}\n\t */\n\tpublic getNormalized( name: string | undefined, styles: Styles ): StyleValue {\n\t\tif ( !name ) {\n\t\t\treturn merge( {}, styles );\n\t\t}\n\n\t\t// Might be empty string.\n\t\tif ( styles[ name ] !== undefined ) {\n\t\t\treturn styles[ name ];\n\t\t}\n\n\t\tif ( this._extractors.has( name ) ) {\n\t\t\tconst extractor = this._extractors.get( name )!;\n\n\t\t\tif ( typeof extractor === 'string' ) {\n\t\t\t\treturn get( styles, extractor );\n\t\t\t}\n\n\t\t\tconst value = extractor( name, styles );\n\n\t\t\tif ( value ) {\n\t\t\t\treturn value;\n\t\t\t}\n\t\t}\n\n\t\treturn get( styles, toPath( name ) );\n\t}\n\n\t/**\n\t * Returns a reduced form of style property form normalized object.\n\t *\n\t * For default margin reducer, the below code:\n\t *\n\t *\t\tstylesProcessor.getReducedForm( 'margin', {\n\t *\t\t\tmargin: { top: '1px', right: '1px', bottom: '2px', left: '1px; }\n\t *\t\t} );\n\t *\n\t * will return:\n\t *\n\t *\t\t[\n\t *\t\t\t[ 'margin', '1px 1px 2px' ]\n\t *\t\t]\n\t *\n\t * because it might be represented as a shorthand 'margin' value. However if one of margin long hand values is missing it should return:\n\t *\n\t *\t\t[\n\t *\t\t\t[ 'margin-top', '1px' ],\n\t *\t\t\t[ 'margin-right', '1px' ],\n\t *\t\t\t[ 'margin-bottom', '2px' ]\n\t *\t\t\t// the 'left' value is missing - cannot use 'margin' shorthand.\n\t *\t\t]\n\t *\n\t * **Note**: To define reducer callbacks use {@link #setReducer}.\n\t *\n\t * @param {String} name Name of style property.\n\t * @param {Object} styles Object holding normalized styles.\n\t * @returns {Array.<module:engine/view/stylesmap~PropertyDescriptor>}\n\t */\n\tpublic getReducedForm( name: string, styles: Styles ): Array<PropertyDescriptor> {\n\t\tconst normalizedValue = this.getNormalized( name, styles );\n\n\t\t// Might be empty string.\n\t\tif ( normalizedValue === undefined ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tif ( this._reducers.has( name ) ) {\n\t\t\tconst reducer = this._reducers.get( name )!;\n\n\t\t\treturn reducer( normalizedValue );\n\t\t}\n\n\t\treturn [ [ name, normalizedValue as string ] ];\n\t}\n\n\t/**\n\t * Return all style properties. Also expand shorthand properties (e.g. `margin`, `background`) if respective extractor is available.\n\t *\n\t * @param {Object} styles Object holding normalized styles.\n\t * @returns {Array.<String>}\n\t */\n\tpublic getStyleNames( styles: Styles ): Array<string> {\n\t\t// Find all extractable styles that have a value.\n\t\tconst expandedStyleNames = Array.from( this._consumables.keys() ).filter( name => {\n\t\t\tconst style = this.getNormalized( name, styles );\n\n\t\t\tif ( style && typeof style == 'object' ) {\n\t\t\t\treturn Object.keys( style ).length;\n\t\t\t}\n\n\t\t\treturn style;\n\t\t} );\n\n\t\t// For simple styles (for example `color`) we don't have a map of those styles\n\t\t// but they are 1 to 1 with normalized object keys.\n\t\tconst styleNamesKeysSet = new Set( [\n\t\t\t...expandedStyleNames,\n\t\t\t...Object.keys( styles )\n\t\t] );\n\n\t\treturn Array.from( styleNamesKeysSet.values() );\n\t}\n\n\t/**\n\t * Returns related style names.\n\t *\n\t *\t\tstylesProcessor.getRelatedStyles( 'margin' );\n\t *\t\t// will return: [ 'margin-top', 'margin-right', 'margin-bottom', 'margin-left' ];\n\t *\n\t *\t\tstylesProcessor.getRelatedStyles( 'margin-top' );\n\t *\t\t// will return: [ 'margin' ];\n\t *\n\t * **Note**: To define new style relations load an existing style processor or use\n\t * {@link module:engine/view/stylesmap~StylesProcessor#setStyleRelation `StylesProcessor.setStyleRelation()`}.\n\t *\n\t * @param {String} name\n\t * @returns {Array.<String>}\n\t */\n\tpublic getRelatedStyles( name: string ): Array<string> {\n\t\treturn this._consumables.get( name ) || [];\n\t}\n\n\t/**\n\t * Adds a normalizer method for a style property.\n\t *\n\t * A normalizer returns describing how the value should be normalized.\n\t *\n\t * For instance 'margin' style is a shorthand for four margin values:\n\t *\n\t * - 'margin-top'\n\t * - 'margin-right'\n\t * - 'margin-bottom'\n\t * - 'margin-left'\n\t *\n\t * and can be written in various ways if some values are equal to others. For instance `'margin: 1px 2em;'` is a shorthand for\n\t * `'margin-top: 1px;margin-right: 2em;margin-bottom: 1px;margin-left: 2em'`.\n\t *\n\t * A normalizer should parse various margin notations as a single object:\n\t *\n\t *\t\tconst styles = {\n\t *\t\t\tmargin: {\n\t *\t\t\t\ttop: '1px',\n\t *\t\t\t\tright: '2em',\n\t *\t\t\t\tbottom: '1px',\n\t *\t\t\t\tleft: '2em'\n\t *\t\t\t}\n\t *\t\t};\n\t *\n\t * Thus a normalizer for 'margin' style should return an object defining style path and value to store:\n\t *\n\t *\t\tconst returnValue = {\n\t *\t\t\tpath: 'margin',\n\t *\t\t\tvalue: {\n\t *\t\t\t\ttop: '1px',\n\t *\t\t\t\tright: '2em',\n\t *\t\t\t\tbottom: '1px',\n\t *\t\t\t\tleft: '2em'\n\t *\t\t\t}\n\t *\t\t};\n\t *\n\t * Additionally to fully support all margin notations there should be also defined 4 normalizers for longhand margin notations. Below\n\t * is an example for 'margin-top' style property normalizer:\n\t *\n\t *\t\tstylesProcessor.setNormalizer( 'margin-top', valueString => {\n\t *\t\t\treturn {\n\t *\t\t\t\tpath: 'margin.top',\n\t *\t\t\t\tvalue: valueString\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * @param {String} name\n\t * @param {Function} callback\n\t */\n\tpublic setNormalizer( name: string, callback: Normalizer ): void {\n\t\tthis._normalizers.set( name, callback );\n\t}\n\n\t/**\n\t * Adds a extractor callback for a style property.\n\t *\n\t * Most normalized style values are stored as one level objects. It is assumed that `'margin-top'` style will be stored as:\n\t *\n\t *\t\tconst styles = {\n\t *\t\t\tmargin: {\n\t *\t\t\t\ttop: 'value'\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t * However, some styles can have conflicting notations and thus it might be harder to extract a style value from shorthand. For instance\n\t * the 'border-top-style' can be defined using `'border-top:solid'`, `'border-style:solid none none none'` or by `'border:solid'`\n\t * shorthands. The default border styles processors stores styles as:\n\t *\n\t *\t\tconst styles = {\n\t *\t\t\tborder: {\n\t *\t\t\t\tstyle: {\n\t *\t\t\t\t\ttop: 'solid'\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t * as it is better to modify border style independently from other values. On the other part the output of the border might be\n\t * desired as `border-top`, `border-left`, etc notation.\n\t *\n\t * In the above example a reducer should return a side border value that combines style, color and width:\n\t *\n\t *\t\tstyleProcessor.setExtractor( 'border-top', styles => {\n\t *\t\t\treturn {\n\t *\t\t\t\tcolor: styles.border.color.top,\n\t *\t\t\t\tstyle: styles.border.style.top,\n\t *\t\t\t\twidth: styles.border.width.top\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * @param {String} name\n\t * @param {Function|String} callbackOrPath Callback that return a requested value or path string for single values.\n\t */\n\tpublic setExtractor( name: string, callbackOrPath: Extractor ): void {\n\t\tthis._extractors.set( name, callbackOrPath );\n\t}\n\n\t/**\n\t * Adds a reducer callback for a style property.\n\t *\n\t * Reducer returns a minimal notation for given style name. For longhand properties it is not required to write a reducer as\n\t * by default the direct value from style path is taken.\n\t *\n\t * For shorthand styles a reducer should return minimal style notation either by returning single name-value tuple or multiple tuples\n\t * if a shorthand cannot be used. For instance for a margin shorthand a reducer might return:\n\t *\n\t *\t\tconst marginShortHandTuple = [\n\t *\t\t\t[ 'margin', '1px 1px 2px' ]\n\t *\t\t];\n\t *\n\t * or a longhand tuples for defined values:\n\t *\n\t *\t\t// Considering margin.bottom and margin.left are undefined.\n\t *\t\tconst marginLonghandsTuples = [\n\t *\t\t\t[ 'margin-top', '1px' ],\n\t *\t\t\t[ 'margin-right', '1px' ]\n\t *\t\t];\n\t *\n\t * A reducer obtains a normalized style value:\n\t *\n\t *\t\t// Simplified reducer that always outputs 4 values which are always present:\n\t *\t\tstylesProcessor.setReducer( 'margin', margin => {\n\t *\t\t\treturn [\n\t *\t\t\t\t[ 'margin', `${ margin.top } ${ margin.right } ${ margin.bottom } ${ margin.left }` ]\n\t *\t\t\t]\n\t *\t\t} );\n\t *\n\t * @param {String} name\n\t * @param {Function} callback\n\t */\n\tpublic setReducer( name: string, callback: Reducer ): void {\n\t\tthis._reducers.set( name, callback );\n\t}\n\n\t/**\n\t * Defines a style shorthand relation to other style notations.\n\t *\n\t *\t\tstylesProcessor.setStyleRelation( 'margin', [\n\t *\t\t\t'margin-top',\n\t *\t\t\t'margin-right',\n\t *\t\t\t'margin-bottom',\n\t *\t\t\t'margin-left'\n\t *\t\t] );\n\t *\n\t * This enables expanding of style names for shorthands. For instance, if defined,\n\t * {@link module:engine/conversion/viewconsumable~ViewConsumable view consumable} items are automatically created\n\t * for long-hand margin style notation alongside the `'margin'` item.\n\t *\n\t * This means that when an element being converted has a style `margin`, a converter for `margin-left` will work just\n\t * fine since the view consumable will contain a consumable `margin-left` item (thanks to the relation) and\n\t * `element.getStyle( 'margin-left' )` will work as well assuming that the style processor was correctly configured.\n\t * However, once `margin-left` is consumed, `margin` will not be consumable anymore.\n\t *\n\t * @param {String} shorthandName\n\t * @param {Array.<String>} styleNames\n\t */\n\tpublic setStyleRelation( shorthandName: string, styleNames: Array<string> ): void {\n\t\tthis._mapStyleNames( shorthandName, styleNames );\n\n\t\tfor ( const alsoName of styleNames ) {\n\t\t\tthis._mapStyleNames( alsoName, [ shorthandName ] );\n\t\t}\n\t}\n\n\t/**\n\t * Set two-way binding of style names.\n\t *\n\t * @param {String} name\n\t * @param {Array.<String>} styleNames\n\t * @private\n\t */\n\tprivate _mapStyleNames( name: string, styleNames: Array<string> ) {\n\t\tif ( !this._consumables.has( name ) ) {\n\t\t\tthis._consumables.set( name, [] );\n\t\t}\n\n\t\tthis._consumables.get( name )!.push( ...styleNames );\n\t}\n}\n\n// Parses inline styles and puts property - value pairs into styles map.\n//\n// @param {String} stylesString Styles to parse.\n// @returns {Map.<String, String>} stylesMap Map of parsed properties and values.\nfunction parseInlineStyles( stylesString: string ): Map<string, string> {\n\t// `null` if no quote was found in input string or last found quote was a closing quote. See below.\n\tlet quoteType = null;\n\tlet propertyNameStart = 0;\n\tlet propertyValueStart = 0;\n\tlet propertyName = null;\n\n\tconst stylesMap = new Map();\n\n\t// Do not set anything if input string is empty.\n\tif ( stylesString === '' ) {\n\t\treturn stylesMap;\n\t}\n\n\t// Fix inline styles that do not end with `;` so they are compatible with algorithm below.\n\tif ( stylesString.charAt( stylesString.length - 1 ) != ';' ) {\n\t\tstylesString = stylesString + ';';\n\t}\n\n\t// Seek the whole string for \"special characters\".\n\tfor ( let i = 0; i < stylesString.length; i++ ) {\n\t\tconst char = stylesString.charAt( i );\n\n\t\tif ( quoteType === null ) {\n\t\t\t// No quote found yet or last found quote was a closing quote.\n\t\t\tswitch ( char ) {\n\t\t\t\tcase ':':\n\t\t\t\t\t// Most of time colon means that property name just ended.\n\t\t\t\t\t// Sometimes however `:` is found inside property value (for example in background image url).\n\t\t\t\t\tif ( !propertyName ) {\n\t\t\t\t\t\t// Treat this as end of property only if property name is not already saved.\n\t\t\t\t\t\t// Save property name.\n\t\t\t\t\t\tpropertyName = stylesString.substr( propertyNameStart, i - propertyNameStart );\n\t\t\t\t\t\t// Save this point as the start of property value.\n\t\t\t\t\t\tpropertyValueStart = i + 1;\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase '\"':\n\t\t\t\tcase '\\'':\n\t\t\t\t\t// Opening quote found (this is an opening quote, because `quoteType` is `null`).\n\t\t\t\t\tquoteType = char;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase ';': {\n\t\t\t\t\t// Property value just ended.\n\t\t\t\t\t// Use previously stored property value start to obtain property value.\n\t\t\t\t\tconst propertyValue = stylesString.substr( propertyValueStart, i - propertyValueStart );\n\n\t\t\t\t\tif ( propertyName ) {\n\t\t\t\t\t\t// Save parsed part.\n\t\t\t\t\t\tstylesMap.set( propertyName.trim(), propertyValue.trim() );\n\t\t\t\t\t}\n\n\t\t\t\t\tpropertyName = null;\n\n\t\t\t\t\t// Save this point as property name start. Property name starts immediately after previous property value ends.\n\t\t\t\t\tpropertyNameStart = i + 1;\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( char === quoteType ) {\n\t\t\t// If a quote char is found and it is a closing quote, mark this fact by `null`-ing `quoteType`.\n\t\t\tquoteType = null;\n\t\t}\n\t}\n\n\treturn stylesMap;\n}\n\n// Return lodash compatible path from style name.\nfunction toPath( name: string ): string {\n\treturn name.replace( '-', '.' );\n}\n\n// Appends style definition to the styles object.\n//\n// @param {String} nameOrPath\n// @param {String|Object} valueOrObject\n// @private\nfunction appendStyleValue( stylesObject: Styles, nameOrPath: string, valueOrObject: StyleValue ) {\n\tlet valueToSet = valueOrObject;\n\n\tif ( isObject( valueOrObject ) ) {\n\t\tvalueToSet = merge( {}, get( stylesObject, nameOrPath ), valueOrObject );\n\t}\n\n\tset( stylesObject, nameOrPath, valueToSet );\n}\n\n/**\n * A CSS style property descriptor that contains tuplet of two strings:\n *\n * - first string describes property name\n * - second string describes property value\n *\n *\t\tconst marginDescriptor = [ 'margin', '2px 3em' ];\n *\t\tconst marginTopDescriptor = [ 'margin-top', '2px' ];\n *\n * @typedef {Array.<String, String>} module:engine/view/stylesmap~PropertyDescriptor\n */\nexport type PropertyDescriptor = [ string, string ];\n\n/**\n * An object describing values associated with the sides of a box, for instance margins, paddings,\n * border widths, border colors, etc.\n *\n *\t\tconst margin = {\n *\t\t\ttop: '1px',\n *\t\t\tright: '3px',\n *\t\t\tbottom: '3px',\n *\t\t\tleft: '7px'\n *\t\t};\n *\n *\t\tconst borderColor = {\n *\t\t\ttop: 'red',\n *\t\t\tright: 'blue',\n *\t\t\tbottom: 'blue',\n *\t\t\tleft: 'red'\n *\t\t};\n *\n * @typedef {Object} module:engine/view/stylesmap~BoxSides\n *\n * @property {String} top Top side value.\n * @property {String} right Right side value.\n * @property {String} bottom Bottom side value.\n * @property {String} left Left side value.\n */\nexport type BoxSides = {\n\ttop: undefined | string;\n\tleft: undefined | string;\n\tright: undefined | string;\n\tbottom: undefined | string;\n};\n\n/**\n * TODO docs\n */\nexport interface Styles {\n\t[ name: string ]: StyleValue;\n}\n\n/**\n * TODO docs\n */\nexport type StyleValue = string | Array<string> | Styles | BoxSides;\n\n/**\n * TODO docs\n */\nexport type Normalizer = ( name: string ) => { path: string; value: StyleValue };\n\n/**\n * TODO docs\n */\nexport type Extractor = string | ( ( name: string, styles: Styles ) => StyleValue | undefined );\n\n/**\n * TODO docs\n */\nexport type Reducer = ( value: StyleValue ) => Array<PropertyDescriptor>;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/element\n */\n\nimport Node from './node';\nimport Text from './text';\nimport TextProxy from './textproxy';\nimport { isIterable, toArray, toMap } from '@ckeditor/ckeditor5-utils';\nimport { default as Matcher, type MatcherPattern } from './matcher';\nimport { default as StylesMap, type StyleValue } from './stylesmap';\n\nimport type Document from './document';\nimport type Item from './item';\nimport { isPlainObject } from 'lodash-es';\n\n// @if CK_DEBUG_ENGINE // const { convertMapToTags } = require( '../dev-utils/utils' );\n\n/**\n * View element.\n *\n * The editing engine does not define a fixed semantics of its elements (it is \"DTD-free\").\n * This is why the type of the {@link module:engine/view/element~Element} need to\n * be defined by the feature developer. When creating an element you should use one of the following methods:\n *\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createContainerElement `downcastWriter#createContainerElement()`}\n * in order to create a {@link module:engine/view/containerelement~ContainerElement},\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement `downcastWriter#createAttributeElement()`}\n * in order to create a {@link module:engine/view/attributeelement~AttributeElement},\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createEmptyElement `downcastWriter#createEmptyElement()`}\n * in order to create a {@link module:engine/view/emptyelement~EmptyElement}.\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `downcastWriter#createUIElement()`}\n * in order to create a {@link module:engine/view/uielement~UIElement}.\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createEditableElement `downcastWriter#createEditableElement()`}\n * in order to create a {@link module:engine/view/editableelement~EditableElement}.\n *\n * Note that for view elements which are not created from the model, like elements from mutations, paste or\n * {@link module:engine/controller/datacontroller~DataController#set data.set} it is not possible to define the type of the element.\n * In such cases the {@link module:engine/view/upcastwriter~UpcastWriter#createElement `UpcastWriter#createElement()`} method\n * should be used to create generic view elements.\n *\n * @extends module:engine/view/node~Node\n */\nexport default class Element extends Node {\n\tpublic name: string;\n\n\tpublic getFillerOffset?: () => number | null;\n\n\tprivate _unsafeAttributesToRender: Array<string>;\n\tprivate readonly _attrs: Map<string, string>;\n\tprivate readonly _children: Array<Node>;\n\tprivate readonly _classes: Set<string>;\n\tprivate readonly _styles: StylesMap;\n\tprivate readonly _customProperties: Map<string | symbol, unknown>;\n\n\t/**\n\t * Creates a view element.\n\t *\n\t * Attributes can be passed in various formats:\n\t *\n\t *\t\tnew Element( viewDocument, 'div', { class: 'editor', contentEditable: 'true' } ); // object\n\t *\t\tnew Element( viewDocument, 'div', [ [ 'class', 'editor' ], [ 'contentEditable', 'true' ] ] ); // map-like iterator\n\t *\t\tnew Element( viewDocument, 'div', mapOfAttributes ); // map\n\t *\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this element belongs.\n\t * @param {String} name Node name.\n\t * @param {Object|Iterable} [attrs] Collection of attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattrs?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document );\n\n\t\t/**\n\t\t * Name of the element.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.name = name;\n\n\t\t/**\n\t\t * Map of attributes, where attributes names are keys and attributes values are values.\n\t\t *\n\t\t * @protected\n\t\t * @member {Map} #_attrs\n\t\t */\n\t\tthis._attrs = parseAttributes( attrs );\n\n\t\t/**\n\t\t * Array of child nodes.\n\t\t *\n\t\t * @protected\n\t\t * @member {Array.<module:engine/view/node~Node>}\n\t\t */\n\t\tthis._children = [];\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\n\t\t/**\n\t\t * Set of classes associated with element instance.\n\t\t *\n\t\t * @protected\n\t\t * @member {Set}\n\t\t */\n\t\tthis._classes = new Set();\n\n\t\tif ( this._attrs.has( 'class' ) ) {\n\t\t\t// Remove class attribute and handle it by class set.\n\t\t\tconst classString = this._attrs.get( 'class' );\n\t\t\tparseClasses( this._classes, classString! );\n\t\t\tthis._attrs.delete( 'class' );\n\t\t}\n\n\t\t/**\n\t\t * Normalized styles.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:engine/view/stylesmap~StylesMap} module:engine/view/element~Element#_styles\n\t\t */\n\t\tthis._styles = new StylesMap( this.document.stylesProcessor );\n\n\t\tif ( this._attrs.has( 'style' ) ) {\n\t\t\t// Remove style attribute and handle it by styles map.\n\t\t\tthis._styles.setTo( this._attrs.get( 'style' )! );\n\n\t\t\tthis._attrs.delete( 'style' );\n\t\t}\n\n\t\t/**\n\t\t * Map of custom properties.\n\t\t * Custom properties can be added to element instance, will be cloned but not rendered into DOM.\n\t\t *\n\t\t * @protected\n\t\t * @member {Map}\n\t\t */\n\t\tthis._customProperties = new Map();\n\n\t\t/**\n\t\t * A list of attribute names that should be rendered in the editing pipeline even though filtering mechanisms\n\t\t * implemented in the {@link module:engine/view/domconverter~DomConverter} (for instance,\n\t\t * {@link module:engine/view/domconverter~DomConverter#shouldRenderAttribute}) would filter them out.\n\t\t *\n\t\t * These attributes can be specified as an option when the element is created by\n\t\t * the {@link module:engine/view/downcastwriter~DowncastWriter}. To check whether an unsafe an attribute should\n\t\t * be permitted, use the {@link #shouldRenderUnsafeAttribute} method.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @member {Array.<String>}\n\t\t */\n\t\tthis._unsafeAttributesToRender = [];\n\t}\n\n\t/**\n\t * Number of element's children.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this element, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this._children.length === 0;\n\t}\n\n\t/**\n\t * Gets child at the given index.\n\t *\n\t * @param {Number} index Index of child.\n\t * @returns {module:engine/view/node~Node} Child node.\n\t */\n\tpublic getChild( index: number ): Node | undefined {\n\t\treturn this._children[ index ];\n\t}\n\n\t/**\n\t * Gets index of the given child node. Returns `-1` if child node is not found.\n\t *\n\t * @param {module:engine/view/node~Node} node Child node.\n\t * @returns {Number} Index of the child node.\n\t */\n\tpublic getChildIndex( node: Node ): number {\n\t\treturn this._children.indexOf( node );\n\t}\n\n\t/**\n\t * Gets child nodes iterator.\n\t *\n\t * @returns {Iterable.<module:engine/view/node~Node>} Child nodes iterator.\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns an iterator that contains the keys for attributes. Order of inserting attributes is not preserved.\n\t *\n\t * @returns {Iterable.<String>} Keys for attributes.\n\t */\n\tpublic* getAttributeKeys(): IterableIterator<string> {\n\t\tif ( this._classes.size > 0 ) {\n\t\t\tyield 'class';\n\t\t}\n\n\t\tif ( !this._styles.isEmpty ) {\n\t\t\tyield 'style';\n\t\t}\n\n\t\tyield* this._attrs.keys();\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this element's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t *\n\t * @returns {Iterable.<*>}\n\t */\n\tpublic* getAttributes(): IterableIterator<[ string, string ]> {\n\t\tyield* this._attrs.entries();\n\n\t\tif ( this._classes.size > 0 ) {\n\t\t\tyield [ 'class', this.getAttribute( 'class' )! ];\n\t\t}\n\n\t\tif ( !this._styles.isEmpty ) {\n\t\t\tyield [ 'style', this.getAttribute( 'style' )! ];\n\t\t}\n\t}\n\n\t/**\n\t * Gets attribute by key. If attribute is not present - returns undefined.\n\t *\n\t * @param {String} key Attribute key.\n\t * @returns {String|undefined} Attribute value.\n\t */\n\tpublic getAttribute( key: string ): string | undefined {\n\t\tif ( key == 'class' ) {\n\t\t\tif ( this._classes.size > 0 ) {\n\t\t\t\treturn [ ...this._classes ].join( ' ' );\n\t\t\t}\n\n\t\t\treturn undefined;\n\t\t}\n\n\t\tif ( key == 'style' ) {\n\t\t\tconst inlineStyle = this._styles.toString();\n\n\t\t\treturn inlineStyle == '' ? undefined : inlineStyle;\n\t\t}\n\n\t\treturn this._attrs.get( key );\n\t}\n\n\t/**\n\t * Returns a boolean indicating whether an attribute with the specified key exists in the element.\n\t *\n\t * @param {String} key Attribute key.\n\t * @returns {Boolean} `true` if attribute with the specified key exists in the element, false otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\tif ( key == 'class' ) {\n\t\t\treturn this._classes.size > 0;\n\t\t}\n\n\t\tif ( key == 'style' ) {\n\t\t\treturn !this._styles.isEmpty;\n\t\t}\n\n\t\treturn this._attrs.has( key );\n\t}\n\n\t/**\n\t * Checks if this element is similar to other element.\n\t * Both elements should have the same name and attributes to be considered as similar. Two similar elements\n\t * can contain different set of children nodes.\n\t *\n\t * @param {module:engine/view/element~Element} otherElement\n\t * @returns {Boolean}\n\t */\n\tpublic isSimilar( otherElement: Element ): boolean {\n\t\tif ( !( otherElement instanceof Element ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// If exactly the same Element is provided - return true immediately.\n\t\tif ( this === otherElement ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Check element name.\n\t\tif ( this.name != otherElement.name ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check number of attributes, classes and styles.\n\t\tif ( this._attrs.size !== otherElement._attrs.size || this._classes.size !== otherElement._classes.size ||\n\t\t\tthis._styles.size !== otherElement._styles.size ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if attributes are the same.\n\t\tfor ( const [ key, value ] of this._attrs ) {\n\t\t\tif ( !otherElement._attrs.has( key ) || otherElement._attrs.get( key ) !== value ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if classes are the same.\n\t\tfor ( const className of this._classes ) {\n\t\t\tif ( !otherElement._classes.has( className ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if styles are the same.\n\t\tfor ( const property of this._styles.getStyleNames() ) {\n\t\t\tif (\n\t\t\t\t!otherElement._styles.has( property ) ||\n\t\t\t\totherElement._styles.getAsString( property ) !== this._styles.getAsString( property )\n\t\t\t) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns true if class is present.\n\t * If more then one class is provided - returns true only when all classes are present.\n\t *\n\t *\t\telement.hasClass( 'foo' ); // Returns true if 'foo' class is present.\n\t *\t\telement.hasClass( 'foo', 'bar' ); // Returns true if 'foo' and 'bar' classes are both present.\n\t *\n\t * @param {...String} className\n\t */\n\tpublic hasClass( ...className: Array<string> ): boolean {\n\t\tfor ( const name of className ) {\n\t\t\tif ( !this._classes.has( name ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns iterator that contains all class names.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic getClassNames(): Iterable<string> {\n\t\treturn this._classes.keys();\n\t}\n\n\t/**\n\t * Returns style value for the given property mae.\n\t * If the style does not exist `undefined` is returned.\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#getAsString `StylesMap#getAsString()`} for details.\n\t *\n\t * For an element with style set to `'margin:1px'`:\n\t *\n\t *\t\t// Enable 'margin' shorthand processing:\n\t *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t *\t\tconst element = view.change( writer => {\n\t *\t\t\tconst element = writer.createElement();\n\t *\t\t\twriter.setStyle( 'margin', '1px' );\n\t *\t\t\twriter.setStyle( 'margin-bottom', '3em' );\n\t *\n\t *\t\t\treturn element;\n\t *\t\t} );\n\t *\n\t *\t\telement.getStyle( 'margin' ); // -> 'margin: 1px 1px 3em;'\n\t *\n\t * @param {String} property\n\t * @returns {String|undefined}\n\t */\n\tpublic getStyle( property: string ): string | undefined {\n\t\treturn this._styles.getAsString( property );\n\t}\n\n\t/**\n\t * Returns a normalized style object or single style value.\n\t *\n\t * For an element with style set to: margin:1px 2px 3em;\n\t *\n\t *\t\telement.getNormalizedStyle( 'margin' ) );\n\t *\n\t * will return:\n\t *\n\t *\t\t{\n\t *\t\t\ttop: '1px',\n\t *\t\t\tright: '2px',\n\t *\t\t\tbottom: '3em',\n\t *\t\t\tleft: '2px'    // a normalized value from margin shorthand\n\t *\t\t}\n\t *\n\t * and reading for single style value:\n\t *\n\t *\t\tstyles.getNormalizedStyle( 'margin-left' );\n\t *\n\t * Will return a `2px` string.\n\t *\n\t * **Note**: This method will return normalized values only if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#getNormalized `StylesMap#getNormalized()`} for details.\n\t *\n\t *\n\t * @param {String} property Name of CSS property\n\t * @returns {Object|String|undefined}\n\t */\n\tpublic getNormalizedStyle( property: string ): StyleValue {\n\t\treturn this._styles.getNormalized( property );\n\t}\n\n\t/**\n\t * Returns iterator that contains all style names.\n\t *\n\t * @param {Boolean} [expand=false] Expand shorthand style properties and return all equivalent style representations.\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic getStyleNames( expand?: boolean ): Iterable<string> {\n\t\treturn this._styles.getStyleNames( expand );\n\t}\n\n\t/**\n\t * Returns true if style keys are present.\n\t * If more then one style property is provided - returns true only when all properties are present.\n\t *\n\t *\t\telement.hasStyle( 'color' ); // Returns true if 'border-top' style is present.\n\t *\t\telement.hasStyle( 'color', 'border-top' ); // Returns true if 'color' and 'border-top' styles are both present.\n\t *\n\t * @param {...String} property\n\t */\n\tpublic hasStyle( ...property: Array<string> ): boolean {\n\t\tfor ( const name of property ) {\n\t\t\tif ( !this._styles.has( name ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns ancestor element that match specified pattern.\n\t * Provided patterns should be compatible with {@link module:engine/view/matcher~Matcher Matcher} as it is used internally.\n\t *\n\t * @see module:engine/view/matcher~Matcher\n\t * @param {Object|String|RegExp|Function} patterns Patterns used to match correct ancestor.\n\t * See {@link module:engine/view/matcher~Matcher}.\n\t * @returns {module:engine/view/element~Element|null} Found element or `null` if no matching ancestor was found.\n\t */\n\tpublic findAncestor( ...patterns: Array<MatcherPattern | ( ( element: Element ) => boolean )> ): Element | null {\n\t\tconst matcher = new Matcher( ...patterns as any );\n\t\tlet parent = this.parent;\n\n\t\twhile ( parent && !parent.is( 'documentFragment' ) ) {\n\t\t\tif ( matcher.match( parent ) ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the custom property value for the given key.\n\t *\n\t * @param {String|Symbol} key\n\t * @returns {*}\n\t */\n\tpublic getCustomProperty( key: string | symbol ): unknown {\n\t\treturn this._customProperties.get( key );\n\t}\n\n\t/**\n\t * Returns an iterator which iterates over this element's custom properties.\n\t * Iterator provides `[ key, value ]` pairs for each stored property.\n\t *\n\t * @returns {Iterable.<*>}\n\t */\n\tpublic* getCustomProperties(): Iterable<[ string | symbol, unknown ]> {\n\t\tyield* this._customProperties.entries();\n\t}\n\n\t/**\n\t * Returns identity string based on element's name, styles, classes and other attributes.\n\t * Two elements that {@link #isSimilar are similar} will have same identity string.\n\t * It has the following format:\n\t *\n\t *\t\t'name class=\"class1,class2\" style=\"style1:value1;style2:value2\" attr1=\"val1\" attr2=\"val2\"'\n \t *\n\t * For example:\n\t *\n\t *\t\tconst element = writer.createContainerElement( 'foo', {\n\t *\t\t\tbanana: '10',\n\t *\t\t\tapple: '20',\n\t *\t\t\tstyle: 'color: red; border-color: white;',\n\t *\t\t\tclass: 'baz'\n\t *\t\t} );\n\t *\n\t *\t\t// returns 'foo class=\"baz\" style=\"border-color:white;color:red\" apple=\"20\" banana=\"10\"'\n\t *\t\telement.getIdentity();\n\t *\n\t * **Note**: Classes, styles and other attributes are sorted alphabetically.\n\t *\n\t * @returns {String}\n\t */\n\tpublic getIdentity(): string {\n\t\tconst classes = Array.from( this._classes ).sort().join( ',' );\n\t\tconst styles = this._styles.toString();\n\t\tconst attributes = Array.from( this._attrs ).map( i => `${ i[ 0 ] }=\"${ i[ 1 ] }\"` ).sort().join( ' ' );\n\n\t\treturn this.name +\n\t\t\t( classes == '' ? '' : ` class=\"${ classes }\"` ) +\n\t\t\t( !styles ? '' : ` style=\"${ styles }\"` ) +\n\t\t\t( attributes == '' ? '' : ` ${ attributes }` );\n\t}\n\n\t/**\n\t * Decides whether an unsafe attribute is whitelisted and should be rendered in the editing pipeline even though filtering mechanisms\n\t * like {@link module:engine/view/domconverter~DomConverter#shouldRenderAttribute} say it should not.\n\t *\n\t * Unsafe attribute names can be specified when creating an element via {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t *\n\t * @param {String} attributeName The name of the attribute to be checked.\n\t * @returns {Boolean}\n\t */\n\tpublic shouldRenderUnsafeAttribute( attributeName: string ): boolean {\n\t\treturn this._unsafeAttributesToRender.includes( attributeName );\n\t}\n\n\t/**\n\t * Clones provided element.\n\t *\n\t * @protected\n\t * @param {Boolean} [deep=false] If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any children.\n\t * @returns {module:engine/view/element~Element} Clone of this element.\n\t */\n\tpublic _clone( deep = false ): Element {\n\t\tconst childrenClone = [];\n\n\t\tif ( deep ) {\n\t\t\tfor ( const child of this.getChildren() ) {\n\t\t\t\tchildrenClone.push( child._clone( deep ) );\n\t\t\t}\n\t\t}\n\n\t\t// ContainerElement and AttributeElement should be also cloned properly.\n\t\tconst cloned = new ( this.constructor as any )( this.document, this.name, this._attrs, childrenClone );\n\n\t\t// Classes and styles are cloned separately - this solution is faster than adding them back to attributes and\n\t\t// parse once again in constructor.\n\t\tcloned._classes = new Set( this._classes );\n\t\tcloned._styles.set( this._styles.getNormalized() );\n\n\t\t// Clone custom properties.\n\t\tcloned._customProperties = new Map( this._customProperties );\n\n\t\t// Clone filler offset method.\n\t\t// We can't define this method in a prototype because it's behavior which\n\t\t// is changed by e.g. toWidget() function from ckeditor5-widget. Perhaps this should be one of custom props.\n\t\tcloned.getFillerOffset = this.getFillerOffset;\n\n\t\t// Clone unsafe attributes list.\n\t\tcloned._unsafeAttributesToRender = this._unsafeAttributesToRender;\n\n\t\treturn cloned;\n\t}\n\n\t/**\n\t * {@link module:engine/view/element~Element#_insertChild Insert} a child node or a list of child nodes at the end of this node\n\t * and sets the parent of these nodes to this element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#insert\n\t * @protected\n\t * @param {module:engine/view/item~Item|Iterable.<module:engine/view/item~Item>} items Items to be inserted.\n\t * @fires module:engine/view/node~Node#change\n\t * @returns {Number} Number of appended nodes.\n\t */\n\tpublic _appendChild( items: Item | Iterable<Item> ): number {\n\t\treturn this._insertChild( this.childCount, items );\n\t}\n\n\t/**\n\t * Inserts a child node or a list of child nodes on the given index and sets the parent of these nodes to\n\t * this element.\n\t *\n\t * @internal\n\t * @see module:engine/view/downcastwriter~DowncastWriter#insert\n\t * @protected\n\t * @param {Number} index Position where nodes should be inserted.\n\t * @param {module:engine/view/item~Item|Iterable.<module:engine/view/item~Item>} items Items to be inserted.\n\t * @fires module:engine/view/node~Node#change\n\t * @returns {Number} Number of inserted nodes.\n\t */\n\tpublic _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tthis._fireChange( 'children', this );\n\t\tlet count = 0;\n\n\t\tconst nodes = normalize( this.document, items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\tnode.parent = this;\n\t\t\tnode.document = this.document;\n\n\t\t\tthis._children.splice( index, 0, node );\n\t\t\tindex++;\n\t\t\tcount++;\n\t\t}\n\n\t\treturn count;\n\t}\n\n\t/**\n\t * Removes number of child nodes starting at the given index and set the parent of these nodes to `null`.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#remove\n\t * @protected\n\t * @param {Number} index Number of the first node to remove.\n\t * @param {Number} [howMany=1] Number of nodes to remove.\n\t * @fires module:engine/view/node~Node#change\n\t * @returns {Array.<module:engine/view/node~Node>} The array of removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tthis._fireChange( 'children', this );\n\n\t\tfor ( let i = index; i < index + howMany; i++ ) {\n\t\t\tthis._children[ i ].parent = null;\n\t\t}\n\n\t\treturn this._children.splice( index, howMany );\n\t}\n\n\t/**\n\t * Adds or overwrite attribute with a specified key and value.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setAttribute\n\t * @protected\n\t * @param {String} key Attribute key.\n\t * @param {String} value Attribute value.\n\t * @fires module:engine/view/node~Node#change\n\t */\n\tpublic _setAttribute( key: string, value: string ): void {\n\t\tvalue = String( value );\n\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tif ( key == 'class' ) {\n\t\t\tparseClasses( this._classes, value );\n\t\t} else if ( key == 'style' ) {\n\t\t\tthis._styles.setTo( value );\n\t\t} else {\n\t\t\tthis._attrs.set( key, value );\n\t\t}\n\t}\n\n\t/**\n\t * Removes attribute from the element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeAttribute\n\t * @protected\n\t * @param {String} key Attribute key.\n\t * @returns {Boolean} Returns true if an attribute existed and has been removed.\n\t * @fires module:engine/view/node~Node#change\n\t */\n\tpublic _removeAttribute( key: string ): boolean {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\t// Remove class attribute.\n\t\tif ( key == 'class' ) {\n\t\t\tif ( this._classes.size > 0 ) {\n\t\t\t\tthis._classes.clear();\n\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\treturn false;\n\t\t}\n\n\t\t// Remove style attribute.\n\t\tif ( key == 'style' ) {\n\t\t\tif ( !this._styles.isEmpty ) {\n\t\t\t\tthis._styles.clear();\n\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\treturn false;\n\t\t}\n\n\t\t// Remove other attributes.\n\t\treturn this._attrs.delete( key );\n\t}\n\n\t/**\n\t * Adds specified class.\n\t *\n\t *\t\telement._addClass( 'foo' ); // Adds 'foo' class.\n\t *\t\telement._addClass( [ 'foo', 'bar' ] ); // Adds 'foo' and 'bar' classes.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#addClass\n\t * @protected\n\t * @param {Array.<String>|String} className\n\t * @fires module:engine/view/node~Node#change\n\t */\n\tpublic _addClass( className: string | Array<string> ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tfor ( const name of toArray( className ) ) {\n\t\t\tthis._classes.add( name );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified class.\n\t *\n\t *\t\telement._removeClass( 'foo' );  // Removes 'foo' class.\n\t *\t\telement._removeClass( [ 'foo', 'bar' ] ); // Removes both 'foo' and 'bar' classes.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeClass\n\t * @protected\n\t * @param {Array.<String>|String} className\n\t * @fires module:engine/view/node~Node#change\n\t */\n\tpublic _removeClass( className: string | Array<string> ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tfor ( const name of toArray( className ) ) {\n\t\t\tthis._classes.delete( name );\n\t\t}\n\t}\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t *\t\telement._setStyle( 'color', 'red' );\n\t *\t\telement._setStyle( {\n\t *\t\t\tcolor: 'red',\n\t *\t\t\tposition: 'fixed'\n\t *\t\t} );\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setStyle\n\t * @protected\n\t * @param {String|Object} property Property name or object with key - value pairs.\n\t * @param {String} [value] Value to set. This parameter is ignored if object is provided as the first parameter.\n\t * @fires module:engine/view/node~Node#change\n\t */\n\tpublic _setStyle( property: string, value: string ): void;\n\tpublic _setStyle( property: Record<string, string> ): void;\n\tpublic _setStyle( property: string | Record<string, string>, value?: string ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tif ( isPlainObject( property ) ) {\n\t\t\tthis._styles.set( property as Record<string, string> );\n\t\t} else {\n\t\t\tthis._styles.set( property as string, value as string );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified style.\n\t *\n\t *\t\telement._removeStyle( 'color' );  // Removes 'color' style.\n\t *\t\telement._removeStyle( [ 'color', 'border-top' ] ); // Removes both 'color' and 'border-top' styles.\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#remove `StylesMap#remove()`} for details.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeStyle\n\t * @protected\n\t * @param {Array.<String>|String} property\n\t * @fires module:engine/view/node~Node#change\n\t */\n\tpublic _removeStyle( property: string | Array<string> ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tfor ( const name of toArray( property ) ) {\n\t\t\tthis._styles.remove( name );\n\t\t}\n\t}\n\n\t/**\n\t * Sets a custom property. Unlike attributes, custom properties are not rendered to the DOM,\n\t * so they can be used to add special data to elements.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setCustomProperty\n\t * @protected\n\t * @param {String|Symbol} key\n\t * @param {*} value\n\t */\n\tpublic _setCustomProperty( key: string | symbol, value: unknown ): void {\n\t\tthis._customProperties.set( key, value );\n\t}\n\n\t/**\n\t * Removes the custom property stored under the given key.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeCustomProperty\n\t * @protected\n\t * @param {String|Symbol} key\n\t * @returns {Boolean} Returns true if property was removed.\n\t */\n\tpublic _removeCustomProperty( key: string | symbol ): boolean {\n\t\treturn this._customProperties.delete( key );\n\t}\n\n\t/**\n\t * Returns block {@link module:engine/view/filler filler} offset or `null` if block filler is not needed.\n\t *\n\t * @abstract\n\t * @method module:engine/view/element~Element#getFillerOffset\n\t */\n\n\t// @if CK_DEBUG_ENGINE // printTree( level = 0) {\n\t// @if CK_DEBUG_ENGINE // \tlet string = '';\n\n\t// @if CK_DEBUG_ENGINE //\tstring += '\\t'.repeat( level ) + `<${ this.name }${ convertMapToTags( this.getAttributes() ) }>`;\n\n\t// @if CK_DEBUG_ENGINE //\tfor ( const child of this.getChildren() ) {\n\t// @if CK_DEBUG_ENGINE //\t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE //\t\t\tstring += '\\n' + '\\t'.repeat( level + 1 ) + child.data;\n\t// @if CK_DEBUG_ENGINE //\t\t} else {\n\t// @if CK_DEBUG_ENGINE //\t\t\tstring += '\\n' + child.printTree( level + 1 );\n\t// @if CK_DEBUG_ENGINE //\t\t}\n\t// @if CK_DEBUG_ENGINE //\t}\n\n\t// @if CK_DEBUG_ENGINE //\tif ( this.childCount ) {\n\t// @if CK_DEBUG_ENGINE //\t\tstring += '\\n' + '\\t'.repeat( level );\n\t// @if CK_DEBUG_ENGINE //\t}\n\n\t// @if CK_DEBUG_ENGINE //\tstring += `</${ this.name }>`;\n\n\t// @if CK_DEBUG_ENGINE //\treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logTree() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\telement.is( 'element' ); // -> true\n *\t\telement.is( 'node' ); // -> true\n *\t\telement.is( 'view:element' ); // -> true\n *\t\telement.is( 'view:node' ); // -> true\n *\n *\t\telement.is( 'model:element' ); // -> false\n *\t\telement.is( 'documentSelection' ); // -> false\n *\n * Assuming that the object being checked is an element, you can also check its\n * {@link module:engine/view/element~Element#name name}:\n *\n *\t\telement.is( 'element', 'img' ); // -> true if this is an <img> element\n *\t\ttext.is( 'element', 'img' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'element' || type === 'view:element' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && ( type === 'element' || type === 'view:element' );\n\t}\n};\n\nexport type ElementAttributes = Record<string, string> | Iterable<[ string, string ]> | null;\n\n// Parses attributes provided to the element constructor before they are applied to an element. If attributes are passed\n// as an object (instead of `Iterable`), the object is transformed to the map. Attributes with `null` value are removed.\n// Attributes with non-`String` value are converted to `String`.\n//\n// @param {Object|Iterable} attrs Attributes to parse.\n// @returns {Map} Parsed attributes.\nfunction parseAttributes( attrs?: ElementAttributes ) {\n\tconst attrsMap = toMap( attrs );\n\n\tfor ( const [ key, value ] of attrsMap ) {\n\t\tif ( value === null ) {\n\t\t\tattrsMap.delete( key );\n\t\t} else if ( typeof value != 'string' ) {\n\t\t\tattrsMap.set( key, String( value ) );\n\t\t}\n\t}\n\n\treturn attrsMap;\n}\n\n// Parses class attribute and puts all classes into classes set.\n// Classes set s cleared before insertion.\n//\n// @param {Set.<String>} classesSet Set to insert parsed classes.\n// @param {String} classesString String with classes to parse.\nfunction parseClasses( classesSet: Set<string>, classesString: string ) {\n\tconst classArray = classesString.split( /\\s+/ );\n\tclassesSet.clear();\n\tclassArray.forEach( name => classesSet.add( name ) );\n}\n\n// Converts strings to Text and non-iterables to arrays.\n//\n// @param {String|module:engine/view/item~Item|Iterable.<String|module:engine/view/item~Item>}\n// @returns {Iterable.<module:engine/view/node~Node>}\nfunction normalize( document: Document, nodes: string | Item | Iterable<string | Item> ): Array<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( document, nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( document, node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( document, node.data );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/containerelement\n */\n\nimport Element from './element';\n\n/**\n * Containers are elements which define document structure. They define boundaries for\n * {@link module:engine/view/attributeelement~AttributeElement attributes}. They are mostly used for block elements like `<p>` or `<div>`.\n *\n * Editing engine does not define a fixed HTML DTD. This is why a feature developer needs to choose between various\n * types (container element, {@link module:engine/view/attributeelement~AttributeElement attribute element},\n * {@link module:engine/view/emptyelement~EmptyElement empty element}, etc) when developing a feature.\n *\n * The container element should be your default choice when writing a converter, unless:\n *\n * * this element represents a model text attribute (then use {@link module:engine/view/attributeelement~AttributeElement}),\n * * this is an empty element like `<img>` (then use {@link module:engine/view/emptyelement~EmptyElement}),\n * * this is a root element,\n * * this is a nested editable element (then use  {@link module:engine/view/editableelement~EditableElement}).\n *\n * To create a new container element instance use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createContainerElement `DowncastWriter#createContainerElement()`}\n * method.\n *\n * @extends module:engine/view/element~Element\n */\nexport default class ContainerElement extends Element {\n\tpublic override getFillerOffset: () => number | null;\n\n\t/**\n\t * Creates a container element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createContainerElement\n\t * @see module:engine/view/element~Element\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this element belongs.\n\t * @param {String} name Node name.\n\t * @param {Object|Iterable} [attrs] Collection of attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into created element.\n\t */\n\tconstructor( ...args: ConstructorParameters<typeof Element> ) {\n\t\tsuper( ...args );\n\n\t\t/**\n\t\t * Returns block {@link module:engine/view/filler filler} offset or `null` if block filler is not needed.\n\t\t *\n\t\t * @method #getFillerOffset\n\t\t * @returns {Number|null} Block filler offset or `null` if block filler is not needed.\n\t\t */\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tcontainerElement.is( 'containerElement' ); // -> true\n *\t\tcontainerElement.is( 'element' ); // -> true\n *\t\tcontainerElement.is( 'node' ); // -> true\n *\t\tcontainerElement.is( 'view:containerElement' ); // -> true\n *\t\tcontainerElement.is( 'view:element' ); // -> true\n *\t\tcontainerElement.is( 'view:node' ); // -> true\n *\n *\t\tcontainerElement.is( 'model:element' ); // -> false\n *\t\tcontainerElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is a container element, you can also check its\n * {@link module:engine/view/containerelement~ContainerElement#name name}:\n *\n *\t\tcontainerElement.is( 'element', 'div' ); // -> true if this is a div container element\n *\t\tcontainerElement.is( 'contaienrElement', 'div' ); // -> same as above\n *\t\ttext.is( 'element', 'div' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nContainerElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'containerElement' || type === 'view:containerElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n/**\n * Returns block {@link module:engine/view/filler filler} offset or `null` if block filler is not needed.\n *\n * @returns {Number|null} Block filler offset or `null` if block filler is not needed.\n */\nexport function getFillerOffset( this: ContainerElement ): number | null {\n\tconst children = [ ...this.getChildren() ];\n\tconst lastChild = children[ this.childCount - 1 ];\n\n\t// Block filler is required after a `<br>` if it's the last element in its container. See #1422.\n\tif ( lastChild && lastChild.is( 'element', 'br' ) ) {\n\t\treturn this.childCount;\n\t}\n\n\tfor ( const child of children ) {\n\t\t// If there's any non-UI element – don't render the bogus.\n\t\tif ( !child.is( 'uiElement' ) ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// If there are only UI elements – render the bogus at the end of the element.\n\treturn this.childCount;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/editableelement\n */\n\nimport ContainerElement from './containerelement';\nimport { ObservableMixin } from '@ckeditor/ckeditor5-utils';\nimport type { ViewSelectionChangeEvent } from './selection';\n\n/**\n * Editable element which can be a {@link module:engine/view/rooteditableelement~RootEditableElement root}\n * or nested editable area in the editor.\n *\n * Editable is automatically read-only when its {@link module:engine/view/document~Document Document} is read-only.\n *\n * The constructor of this class shouldn't be used directly. To create new `EditableElement` use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createEditableElement `downcastWriter#createEditableElement()`} method.\n *\n * @extends module:engine/view/containerelement~ContainerElement\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class EditableElement extends ObservableMixin( ContainerElement ) {\n\tdeclare public isReadOnly: boolean;\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * Creates an editable element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createEditableElement\n\t * @protected\n\t */\n\tconstructor( ...args: ConstructorParameters<typeof ContainerElement> ) {\n\t\tsuper( ...args );\n\n\t\tconst document = args[ 0 ];\n\n\t\t/**\n\t\t * Whether the editable is in read-write or read-only mode.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} module:engine/view/editableelement~EditableElement#isReadOnly\n\t\t */\n\t\tthis.set( 'isReadOnly', false );\n\n\t\t/**\n\t\t * Whether the editable is focused.\n\t\t *\n\t\t * This property updates when {@link module:engine/view/document~Document#isFocused document.isFocused} or view\n\t\t * selection is changed.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} module:engine/view/editableelement~EditableElement#isFocused\n\t\t */\n\t\tthis.set( 'isFocused', false );\n\n\t\tthis.bind( 'isReadOnly' ).to( document );\n\n\t\tthis.bind( 'isFocused' ).to(\n\t\t\tdocument,\n\t\t\t'isFocused',\n\t\t\tisFocused => isFocused && document.selection.editableElement == this\n\t\t);\n\n\t\t// Update focus state based on selection changes.\n\t\tthis.listenTo<ViewSelectionChangeEvent>( document.selection, 'change', () => {\n\t\t\tthis.isFocused = document.isFocused && document.selection.editableElement == this;\n\t\t} );\n\t}\n\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\teditableElement.is( 'editableElement' ); // -> true\n *\t\teditableElement.is( 'element' ); // -> true\n *\t\teditableElement.is( 'node' ); // -> true\n *\t\teditableElement.is( 'view:editableElement' ); // -> true\n *\t\teditableElement.is( 'view:element' ); // -> true\n *\t\teditableElement.is( 'view:node' ); // -> true\n *\n *\t\teditableElement.is( 'model:element' ); // -> false\n *\t\teditableElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is an editbale element, you can also check its\n * {@link module:engine/view/editableelement~EditableElement#name name}:\n *\n *\t\teditableElement.is( 'element', 'div' ); // -> true if this is a div element\n *\t\teditableElement.is( 'editableElement', 'div' ); // -> same as above\n *\t\ttext.is( 'element', 'div' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nEditableElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'editableElement' || type === 'view:editableElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'editableElement' || type === 'view:editableElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/rooteditableelement\n */\n\nimport EditableElement from './editableelement';\n\nimport type Document from './document';\n\nconst rootNameSymbol = Symbol( 'rootName' );\n\n/**\n * Class representing a single root in the data view. A root can be either {@link ~RootEditableElement#isReadOnly editable or read-only},\n * but in both cases it is called \"an editable\". Roots can contain other {@link module:engine/view/editableelement~EditableElement\n * editable elements} making them \"nested editables\".\n *\n * @extends module:engine/view/editableelement~EditableElement\n */\nexport default class RootEditableElement extends EditableElement {\n\t/**\n\t * Creates root editable element.\n\t *\n\t * @param {module:engine/view/document~Document} document The document instance to which this element belongs.\n\t * @param {String} name Node name.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string\n\t) {\n\t\tsuper( document, name );\n\n\t\t/**\n\t\t * Name of this root inside {@link module:engine/view/document~Document} that is an owner of this root. If no\n\t\t * other name is set, `main` name is used.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.rootName = 'main';\n\t}\n\n\tpublic get rootName(): string {\n\t\treturn this.getCustomProperty( rootNameSymbol ) as string;\n\t}\n\n\tpublic set rootName( rootName: string ) {\n\t\tthis._setCustomProperty( rootNameSymbol, rootName );\n\t}\n\n\t/**\n\t * Overrides old element name and sets new one.\n\t * This is needed because view roots are created before they are attached to the DOM.\n\t * The name of the root element is temporary at this stage. It has to be changed when the\n\t * view root element is attached to the DOM element.\n\t *\n\t * @protected\n\t * @param {String} name The new name of element.\n\t */\n\tpublic set _name( name: string ) {\n\t\tthis.name = name;\n\t}\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\trootEditableElement.is( 'rootElement' ); // -> true\n *\t\trootEditableElement.is( 'editableElement' ); // -> true\n *\t\trootEditableElement.is( 'element' ); // -> true\n *\t\trootEditableElement.is( 'node' ); // -> true\n *\t\trootEditableElement.is( 'view:editableElement' ); // -> true\n *\t\trootEditableElement.is( 'view:element' ); // -> true\n *\t\trootEditableElement.is( 'view:node' ); // -> true\n *\n *\t\trootEditableElement.is( 'model:element' ); // -> false\n *\t\trootEditableElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is a root editable element, you can also check its\n * {@link module:engine/view/rooteditableelement~RootEditableElement#name name}:\n *\n *\t\trootEditableElement.is( 'element', 'div' ); // -> true if this is a div root editable element\n *\t\trootEditableElement.is( 'rootElement', 'div' ); // -> same as above\n *\t\ttext.is( 'element', 'div' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nRootEditableElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'rootElement' || type === 'view:rootElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'editableElement' || type === 'view:editableElement' ||\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'rootElement' || type === 'view:rootElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'editableElement' || type === 'view:editableElement' ||\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/treewalker\n */\n\nimport Element from './element';\nimport Text from './text';\nimport TextProxy from './textproxy';\nimport Position from './position';\nimport type Item from './item';\nimport type DocumentFragment from './documentfragment';\nimport type Range from './range';\nimport type Node from './node';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Position iterator class. It allows to iterate forward and backward over the document.\n */\nexport default class TreeWalker implements Iterable<TreeWalkerValue> {\n\tpublic readonly direction: TreeWalkerDirection;\n\tpublic readonly boundaries: Range | null;\n\tpublic position: Position;\n\tpublic readonly singleCharacters: boolean;\n\tpublic readonly shallow: boolean;\n\tpublic readonly ignoreElementEnd: boolean;\n\n\tprivate _boundaryStartParent: Node | DocumentFragment | null;\n\tprivate _boundaryEndParent: Node | DocumentFragment | null;\n\n\t/**\n\t * Creates a range iterator. All parameters are optional, but you have to specify either `boundaries` or `startPosition`.\n\t *\n\t * @constructor\n\t * @param {TODO ~TreeWalkerOptions} options Object with configuration.\n\t */\n\tconstructor( options: TreeWalkerOptions = {} ) {\n\t\tif ( !options.boundaries && !options.startPosition ) {\n\t\t\t/**\n\t\t\t * Neither boundaries nor starting position have been defined.\n\t\t\t *\n\t\t\t * @error view-tree-walker-no-start-position\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-tree-walker-no-start-position',\n\t\t\t\tnull\n\t\t\t);\n\t\t}\n\n\t\tif ( options.direction && options.direction != 'forward' && options.direction != 'backward' ) {\n\t\t\t/**\n\t\t\t * Only `backward` and `forward` direction allowed.\n\t\t\t *\n\t\t\t * @error view-tree-walker-unknown-direction\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-tree-walker-unknown-direction', options.startPosition, { direction: options.direction } );\n\t\t}\n\n\t\t/**\n\t\t * Iterator boundaries.\n\t\t *\n\t\t * When the iterator is walking `'forward'` on the end of boundary or is walking `'backward'`\n\t\t * on the start of boundary, then `{ done: true }` is returned.\n\t\t *\n\t\t * If boundaries are not defined they are set before first and after last child of the root node.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/range~Range} module:engine/view/treewalker~TreeWalker#boundaries\n\t\t */\n\t\tthis.boundaries = options.boundaries || null;\n\n\t\t/**\n\t\t * Iterator position. If start position is not defined then position depends on {@link #direction}. If direction is\n\t\t * `'forward'` position starts form the beginning, when direction is `'backward'` position starts from the end.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/position~Position} module:engine/view/treewalker~TreeWalker#position\n\t\t */\n\t\tif ( options.startPosition ) {\n\t\t\tthis.position = Position._createAt( options.startPosition );\n\t\t} else {\n\t\t\tthis.position = Position._createAt( options.boundaries![ options.direction == 'backward' ? 'end' : 'start' ] );\n\t\t}\n\n\t\t/**\n\t\t * Walking direction. Defaults `'forward'`.\n\t\t *\n\t\t * @readonly\n\t\t * @member {'backward'|'forward'} module:engine/view/treewalker~TreeWalker#direction\n\t\t */\n\t\tthis.direction = options.direction || 'forward';\n\n\t\t/**\n\t\t * Flag indicating whether all characters from {@link module:engine/view/text~Text} should be returned as one\n\t\t * {@link module:engine/view/text~Text} or one by one as {@link module:engine/view/textproxy~TextProxy}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} module:engine/view/treewalker~TreeWalker#singleCharacters\n\t\t */\n\t\tthis.singleCharacters = !!options.singleCharacters;\n\n\t\t/**\n\t\t * Flag indicating whether iterator should enter elements or not. If the iterator is shallow child nodes of any\n\t\t * iterated node will not be returned along with `elementEnd` tag.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} module:engine/view/treewalker~TreeWalker#shallow\n\t\t */\n\t\tthis.shallow = !!options.shallow;\n\n\t\t/**\n\t\t * Flag indicating whether iterator should ignore `elementEnd` tags. If set to `true`, walker will not\n\t\t * return a parent node of the start position. Each {@link module:engine/view/element~Element} will be returned once.\n\t\t * When set to `false` each element might be returned twice: for `'elementStart'` and `'elementEnd'`.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} module:engine/view/treewalker~TreeWalker#ignoreElementEnd\n\t\t */\n\t\tthis.ignoreElementEnd = !!options.ignoreElementEnd;\n\n\t\t/**\n\t\t * Start boundary parent.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/view/node~Node} module:engine/view/treewalker~TreeWalker#_boundaryStartParent\n\t\t */\n\t\tthis._boundaryStartParent = this.boundaries ? this.boundaries.start.parent : null;\n\n\t\t/**\n\t\t * End boundary parent.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/view/node~Node} module:engine/view/treewalker~TreeWalker#_boundaryEndParent\n\t\t */\n\t\tthis._boundaryEndParent = this.boundaries ? this.boundaries.end.parent : null;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * @returns {Iterable.<module:engine/view/treewalker~TreeWalkerValue>}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Moves {@link #position} in the {@link #direction} skipping values as long as the callback function returns `true`.\n\t *\n\t * For example:\n\t *\n\t * \t\twalker.skip( value => value.type == 'text' ); // <p>{}foo</p> -> <p>foo[]</p>\n\t * \t\twalker.skip( value => true ); // Move the position to the end: <p>{}foo</p> -> <p>foo</p>[]\n\t * \t\twalker.skip( value => false ); // Do not move the position.\n\t *\n\t * @param {Function} skip Callback function. Gets {@link module:engine/view/treewalker~TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t */\n\tpublic skip( skip: ( value: TreeWalkerValue ) => boolean ): void {\n\t\tlet done, value, prevPosition;\n\n\t\tdo {\n\t\t\tprevPosition = this.position;\n\n\t\t\t( { done, value } = this.next() );\n\t\t} while ( !done && skip( value ) );\n\n\t\tif ( !done ) {\n\t\t\tthis.position = prevPosition;\n\t\t}\n\t}\n\n\t/**\n\t * Gets the next tree walker's value.\n\t *\n\t * @returns {module:engine/view/treewalker~TreeWalkerValue} Object implementing iterator interface, returning\n\t * information about taken step.\n\t */\n\tpublic next(): IteratorResult<TreeWalkerValue> {\n\t\tif ( this.direction == 'forward' ) {\n\t\t\treturn this._next();\n\t\t} else {\n\t\t\treturn this._previous();\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step forward in view. Moves the {@link #position} to the next position and returns the encountered value.\n\t *\n\t * @private\n\t * @returns {Object}\n\t * @returns {Boolean} return.done `true` if iterator is done, `false` otherwise.\n\t * @returns {module:engine/view/treewalker~TreeWalkerValue} return.value Information about taken step.\n\t */\n\tprivate _next(): IteratorResult<TreeWalkerValue> {\n\t\tlet position = this.position.clone();\n\t\tconst previousPosition = this.position;\n\t\tconst parent = position.parent;\n\n\t\t// We are at the end of the root.\n\t\tif ( parent.parent === null && position.offset === ( parent as any ).childCount ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent === this._boundaryEndParent && position.offset == this.boundaries!.end.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just after current position.\n\t\tlet node;\n\n\t\t// Text is a specific parent because it contains string instead of child nodes.\n\t\tif ( parent instanceof Text ) {\n\t\t\tif ( position.isAtEnd ) {\n\t\t\t\t// Prevent returning \"elementEnd\" for Text node. Skip that value and return the next walker step.\n\t\t\t\tthis.position = Position._createAfter( parent );\n\n\t\t\t\treturn this._next();\n\t\t\t}\n\n\t\t\tnode = parent.data[ position.offset ];\n\t\t} else {\n\t\t\tnode = ( parent as Element | DocumentFragment ).getChild( position.offset );\n\t\t}\n\n\t\tif ( node instanceof Element ) {\n\t\t\tif ( !this.shallow ) {\n\t\t\t\tposition = new Position( node, 0 );\n\t\t\t} else {\n\t\t\t\tposition.offset++;\n\t\t\t}\n\n\t\t\tthis.position = position;\n\n\t\t\treturn this._formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t} else if ( node instanceof Text ) {\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tposition = new Position( node, 0 );\n\t\t\t\tthis.position = position;\n\n\t\t\t\treturn this._next();\n\t\t\t} else {\n\t\t\t\tlet charactersCount = node.data.length;\n\t\t\t\tlet item;\n\n\t\t\t\t// If text stick out of walker range, we need to cut it and wrap in TextProxy.\n\t\t\t\tif ( node == this._boundaryEndParent ) {\n\t\t\t\t\tcharactersCount = this.boundaries!.end.offset;\n\t\t\t\t\titem = new TextProxy( node, 0, charactersCount );\n\t\t\t\t\tposition = Position._createAfter( item );\n\t\t\t\t} else {\n\t\t\t\t\titem = new TextProxy( node, 0, node.data.length );\n\t\t\t\t\t// If not just keep moving forward.\n\t\t\t\t\tposition.offset++;\n\t\t\t\t}\n\n\t\t\t\tthis.position = position;\n\n\t\t\t\treturn this._formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t\t}\n\t\t} else if ( typeof node == 'string' ) {\n\t\t\tlet textLength;\n\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\ttextLength = 1;\n\t\t\t} else {\n\t\t\t\t// Check if text stick out of walker range.\n\t\t\t\tconst endOffset = parent === this._boundaryEndParent ? this.boundaries!.end.offset : ( parent as Text ).data.length;\n\n\t\t\t\ttextLength = endOffset - position.offset;\n\t\t\t}\n\n\t\t\tconst textProxy = new TextProxy( parent as Text, position.offset, textLength );\n\n\t\t\tposition.offset += textLength;\n\t\t\tthis.position = position;\n\n\t\t\treturn this._formatReturnValue( 'text', textProxy, previousPosition, position, textLength );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the end of current `parent`.\n\t\t\tposition = Position._createAfter( parent as any );\n\t\t\tthis.position = position;\n\n\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\treturn this._next();\n\t\t\t} else {\n\t\t\t\treturn this._formatReturnValue( 'elementEnd', parent as any, previousPosition, position );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step backward in view. Moves the {@link #position} to the previous position and returns the encountered value.\n\t *\n\t * @private\n\t * @returns {Object}\n\t * @returns {Boolean} return.done True if iterator is done.\n\t * @returns {module:engine/view/treewalker~TreeWalkerValue} return.value Information about taken step.\n\t */\n\tprivate _previous(): IteratorResult<TreeWalkerValue> {\n\t\tlet position = this.position.clone();\n\t\tconst previousPosition = this.position;\n\t\tconst parent = position.parent;\n\n\t\t// We are at the beginning of the root.\n\t\tif ( parent.parent === null && position.offset === 0 ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent == this._boundaryStartParent && position.offset == this.boundaries!.start.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just before current position.\n\t\tlet node;\n\n\t\t// Text {@link module:engine/view/text~Text} element is a specific parent because contains string instead of child nodes.\n\t\tif ( parent instanceof Text ) {\n\t\t\tif ( position.isAtStart ) {\n\t\t\t\t// Prevent returning \"elementStart\" for Text node. Skip that value and return the next walker step.\n\t\t\t\tthis.position = Position._createBefore( parent );\n\n\t\t\t\treturn this._previous();\n\t\t\t}\n\n\t\t\tnode = parent.data[ position.offset - 1 ];\n\t\t} else {\n\t\t\tnode = ( parent as Element | DocumentFragment ).getChild( position.offset - 1 );\n\t\t}\n\n\t\tif ( node instanceof Element ) {\n\t\t\tif ( !this.shallow ) {\n\t\t\t\tposition = new Position( node, node.childCount );\n\t\t\t\tthis.position = position;\n\n\t\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\t\treturn this._previous();\n\t\t\t\t} else {\n\t\t\t\t\treturn this._formatReturnValue( 'elementEnd', node, previousPosition, position );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tposition.offset--;\n\t\t\t\tthis.position = position;\n\n\t\t\t\treturn this._formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t\t}\n\t\t} else if ( node instanceof Text ) {\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tposition = new Position( node, node.data.length );\n\t\t\t\tthis.position = position;\n\n\t\t\t\treturn this._previous();\n\t\t\t} else {\n\t\t\t\tlet charactersCount = node.data.length;\n\t\t\t\tlet item;\n\n\t\t\t\t// If text stick out of walker range, we need to cut it and wrap in TextProxy.\n\t\t\t\tif ( node == this._boundaryStartParent ) {\n\t\t\t\t\tconst offset = this.boundaries!.start.offset;\n\n\t\t\t\t\titem = new TextProxy( node, offset, node.data.length - offset );\n\t\t\t\t\tcharactersCount = item.data.length;\n\t\t\t\t\tposition = Position._createBefore( item );\n\t\t\t\t} else {\n\t\t\t\t\titem = new TextProxy( node, 0, node.data.length );\n\t\t\t\t\t// If not just keep moving backward.\n\t\t\t\t\tposition.offset--;\n\t\t\t\t}\n\n\t\t\t\tthis.position = position;\n\n\t\t\t\treturn this._formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t\t}\n\t\t} else if ( typeof node == 'string' ) {\n\t\t\tlet textLength;\n\n\t\t\tif ( !this.singleCharacters ) {\n\t\t\t\t// Check if text stick out of walker range.\n\t\t\t\tconst startOffset = parent === this._boundaryStartParent ? this.boundaries!.start.offset : 0;\n\n\t\t\t\ttextLength = position.offset - startOffset;\n\t\t\t} else {\n\t\t\t\ttextLength = 1;\n\t\t\t}\n\n\t\t\tposition.offset -= textLength;\n\n\t\t\tconst textProxy = new TextProxy( parent as Text, position.offset, textLength );\n\n\t\t\tthis.position = position;\n\n\t\t\treturn this._formatReturnValue( 'text', textProxy, previousPosition, position, textLength );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the beginning of current `parent`.\n\t\t\tposition = Position._createBefore( parent as any );\n\t\t\tthis.position = position;\n\n\t\t\treturn this._formatReturnValue( 'elementStart', parent as any, previousPosition, position, 1 );\n\t\t}\n\t}\n\n\t/**\n\t * Format returned data and adjust `previousPosition` and `nextPosition` if reach the bound of the {@link module:engine/view/text~Text}.\n\t *\n\t * @private\n\t * @param {module:engine/view/treewalker~TreeWalkerValueType} type Type of step.\n\t * @param {module:engine/view/item~Item} item Item between old and new position.\n\t * @param {module:engine/view/position~Position} previousPosition Previous position of iterator.\n\t * @param {module:engine/view/position~Position} nextPosition Next position of iterator.\n\t * @param {Number} [length] Length of the item.\n\t * @returns {module:engine/view/treewalker~TreeWalkerValue}\n\t */\n\tprivate _formatReturnValue(\n\t\ttype: TreeWalkerValueType,\n\t\titem: Item,\n\t\tpreviousPosition: Position,\n\t\tnextPosition: Position,\n\t\tlength?: number\n\t): IteratorResult<TreeWalkerValue> {\n\t\t// Text is a specific parent, because contains string instead of children.\n\t\t// Walker doesn't enter to the Text except situations when walker is iterating over every single character,\n\t\t// or the bound starts/ends inside the Text. So when the position is at the beginning or at the end of the Text\n\t\t// we move it just before or just after Text.\n\t\tif ( item instanceof TextProxy ) {\n\t\t\t// Position is at the end of Text.\n\t\t\tif ( item.offsetInText + item.data.length == item.textNode.data.length ) {\n\t\t\t\tif ( this.direction == 'forward' && !( this.boundaries && this.boundaries.end.isEqual( this.position ) ) ) {\n\t\t\t\t\tnextPosition = Position._createAfter( item.textNode );\n\t\t\t\t\t// When we change nextPosition of returned value we need also update walker current position.\n\t\t\t\t\tthis.position = nextPosition;\n\t\t\t\t} else {\n\t\t\t\t\tpreviousPosition = Position._createAfter( item.textNode );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Position is at the begining ot the text.\n\t\t\tif ( item.offsetInText === 0 ) {\n\t\t\t\tif ( this.direction == 'backward' && !( this.boundaries && this.boundaries.start.isEqual( this.position ) ) ) {\n\t\t\t\t\tnextPosition = Position._createBefore( item.textNode );\n\t\t\t\t\t// When we change nextPosition of returned value we need also update walker current position.\n\t\t\t\t\tthis.position = nextPosition;\n\t\t\t\t} else {\n\t\t\t\t\tpreviousPosition = Position._createBefore( item.textNode );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn {\n\t\t\tdone: false,\n\t\t\tvalue: {\n\t\t\t\ttype,\n\t\t\t\titem,\n\t\t\t\tpreviousPosition,\n\t\t\t\tnextPosition,\n\t\t\t\tlength\n\t\t\t}\n\t\t};\n\t}\n}\n\n/**\n * Type of the step made by {@link module:engine/view/treewalker~TreeWalker}.\n * Possible values: `'elementStart'` if walker is at the beginning of a node, `'elementEnd'` if walker is at the end\n * of node, or `'text'` if walker traversed over single and multiple characters.\n * For {@link module:engine/view/text~Text} `elementStart` and `elementEnd` is not returned.\n *\n * @typedef {String} module:engine/view/treewalker~TreeWalkerValueType\n */\nexport type TreeWalkerValueType = 'elementStart' | 'elementEnd' | 'text';\n\n/**\n * Object returned by {@link module:engine/view/treewalker~TreeWalker} when traversing tree view.\n *\n * @typedef {Object} module:engine/view/treewalker~TreeWalkerValue\n * @property {module:engine/view/treewalker~TreeWalkerValueType} type\n * @property {module:engine/view/item~Item} item Item between the old and the new positions\n * of the tree walker.\n * @property {module:engine/view/position~Position} previousPosition Previous position of the iterator.\n * * Forward iteration: For `'elementEnd'` it is the last position inside the element. For all other types it is the\n * position before the item.\n * * Backward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n * the position after item.\n * * If the position is at the beginning or at the end of the {@link module:engine/view/text~Text} it is always moved from the\n * inside of the text to its parent just before or just after that text.\n * @property {module:engine/view/position~Position} nextPosition Next position of the iterator.\n * * Forward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n * the position after the item.\n * * Backward iteration: For `'elementEnd'` it is last position inside element. For all other types it is the position\n * before the item.\n * * If the position is at the beginning or at the end of the {@link module:engine/view/text~Text} it is always moved from the\n * inside of the text to its parent just before or just after that text.\n * @property {Number} [length] Length of the item. For `'elementStart'` it is `1`. For `'text'` it is\n * the length of that text. For `'elementEnd'` it is `undefined`.\n */\nexport interface TreeWalkerValue {\n\ttype: TreeWalkerValueType;\n\titem: Item;\n\tpreviousPosition: Position;\n\tnextPosition: Position;\n\tlength?: number;\n}\n\n/**\n * Tree walking directions.\n *\n * @typedef {'forward'|'backward'} module:engine/view/treewalker~TreeWalkerDirection\n */\nexport type TreeWalkerDirection = 'forward' | 'backward';\n\n/**\n * TODO\n *\n * @typedef TreeWalkerOptions\n * @param {module:engine/view/range~Range} [options.boundaries=null] Range to define boundaries of the iterator.\n * @param {module:engine/view/position~Position} [options.startPosition] Starting position.\n * @param {'forward'|'backward'} [options.direction='forward'] Walking direction.\n * @param {Boolean} [options.singleCharacters=false] Flag indicating whether all characters from\n * {@link module:engine/view/text~Text} should be returned as one {@link module:engine/view/text~Text} (`false`) ore one by one as\n * {@link module:engine/view/textproxy~TextProxy} (`true`).\n * @param {Boolean} [options.shallow=false] Flag indicating whether iterator should enter elements or not. If the\n * iterator is shallow child nodes of any iterated node will not be returned along with `elementEnd` tag.\n * @param {Boolean} [options.ignoreElementEnd=false] Flag indicating whether iterator should ignore `elementEnd`\n * tags. If the option is true walker will not return a parent node of start position. If this option is `true`\n * each {@link module:engine/view/element~Element} will be returned once, while if the option is `false` they might be returned\n * twice: for `'elementStart'` and `'elementEnd'`.\n */\nexport type TreeWalkerOptions = {\n\tdirection?: TreeWalkerDirection;\n\tboundaries?: Range | null;\n\tstartPosition?: Position;\n\tsingleCharacters?: boolean;\n\tshallow?: boolean;\n\tignoreElementEnd?: boolean;\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/position\n */\n\nimport TypeCheckable from './typecheckable';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\nimport EditableElement from './editableelement';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Item from './item';\nimport type Node from './node';\nimport { default as TreeWalker, type TreeWalkerValue, type TreeWalkerOptions } from './treewalker';\n\n/**\n * Position in the view tree. Position is represented by its parent node and an offset in this parent.\n *\n * In order to create a new position instance use the `createPosition*()` factory methods available in:\n *\n * * {@link module:engine/view/view~View}\n * * {@link module:engine/view/downcastwriter~DowncastWriter}\n * * {@link module:engine/view/upcastwriter~UpcastWriter}\n */\nexport default class Position extends TypeCheckable {\n\tpublic parent: Node | DocumentFragment;\n\tpublic offset: number;\n\n\t/**\n\t * Creates a position.\n\t *\n\t * @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} parent Position parent.\n\t * @param {Number} offset Position offset.\n\t */\n\tconstructor( parent: Node | DocumentFragment, offset: number ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Position parent.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment}\n\t\t * module:engine/view/position~Position#parent\n\t\t */\n\t\tthis.parent = parent;\n\n\t\t/**\n\t\t * Position offset.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} module:engine/view/position~Position#offset\n\t\t */\n\t\tthis.offset = offset;\n\t}\n\n\t/**\n\t * Node directly after the position. Equals `null` when there is no node after position or position is located\n\t * inside text node.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/node~Node|null}\n\t */\n\tpublic get nodeAfter(): Node | null {\n\t\tif ( this.parent.is( '$text' ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn ( this.parent as Element ).getChild( this.offset ) || null;\n\t}\n\n\t/**\n\t * Node directly before the position. Equals `null` when there is no node before position or position is located\n\t * inside text node.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/node~Node|null}\n\t */\n\tpublic get nodeBefore(): Node | null {\n\t\tif ( this.parent.is( '$text' ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn ( this.parent as Element ).getChild( this.offset - 1 ) || null;\n\t}\n\n\t/**\n\t * Is `true` if position is at the beginning of its {@link module:engine/view/position~Position#parent parent}, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isAtStart(): boolean {\n\t\treturn this.offset === 0;\n\t}\n\n\t/**\n\t * Is `true` if position is at the end of its {@link module:engine/view/position~Position#parent parent}, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isAtEnd(): boolean {\n\t\tconst endOffset = this.parent.is( '$text' ) ? this.parent.data.length : ( this.parent as any ).childCount;\n\n\t\treturn this.offset === endOffset;\n\t}\n\n\t/**\n\t * Position's root, that is the root of the position's parent element.\n\t *\n\t * @readonly\n\t * @type {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.parent.root;\n\t}\n\n\t/**\n\t * {@link module:engine/view/editableelement~EditableElement EditableElement} instance that contains this position, or `null` if\n\t * position is not inside an editable element.\n\t *\n\t * @type {module:engine/view/editableelement~EditableElement|null}\n\t */\n\tpublic get editableElement(): EditableElement | null {\n\t\tlet editable = this.parent;\n\n\t\twhile ( !( editable instanceof EditableElement ) ) {\n\t\t\tif ( editable.parent ) {\n\t\t\t\teditable = editable.parent;\n\t\t\t} else {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}\n\n\t\treturn editable;\n\t}\n\n\t/**\n\t * Returns a new instance of Position with offset incremented by `shift` value.\n\t *\n\t * @param {Number} shift How position offset should get changed. Accepts negative values.\n\t * @returns {module:engine/view/position~Position} Shifted position.\n\t */\n\tpublic getShiftedBy( shift: number ): Position {\n\t\tconst shifted = Position._createAt( this );\n\n\t\tconst offset = shifted.offset + shift;\n\t\tshifted.offset = offset < 0 ? 0 : offset;\n\n\t\treturn shifted;\n\t}\n\n\t/**\n\t * Gets the farthest position which matches the callback using\n\t * {@link module:engine/view/treewalker~TreeWalker TreeWalker}.\n\t *\n\t * For example:\n\t *\n\t * \t\tgetLastMatchingPosition( value => value.type == 'text' ); // <p>{}foo</p> -> <p>foo[]</p>\n\t * \t\tgetLastMatchingPosition( value => value.type == 'text', { direction: 'backward' } ); // <p>foo[]</p> -> <p>{}foo</p>\n\t * \t\tgetLastMatchingPosition( value => false ); // Do not move the position.\n\t *\n\t * @param {Function} skip Callback function. Gets {@link module:engine/view/treewalker~type TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t * @param {Object} options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t *\n\t * @returns {module:engine/view/position~Position} The position after the last item which matches the `skip` callback test.\n\t */\n\tpublic getLastMatchingPosition( skip: ( value: TreeWalkerValue ) => boolean, options: TreeWalkerOptions = {} ): Position {\n\t\toptions.startPosition = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\t\ttreeWalker.skip( skip );\n\n\t\treturn treeWalker.position;\n\t}\n\n\t/**\n\t * Returns ancestors array of this position, that is this position's parent and it's ancestors.\n\t *\n\t * @returns {Array} Array with ancestors.\n\t */\n\tpublic getAncestors(): Array<Node | DocumentFragment> {\n\t\tif ( this.parent.is( 'documentFragment' ) ) {\n\t\t\treturn [ this.parent ];\n\t\t} else {\n\t\t\treturn this.parent.getAncestors( { includeSelf: true } );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/node~Node} or {@link module:engine/view/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both positions.\n\t *\n\t * @param {module:engine/view/position~Position} position\n\t * @returns {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment|null}\n\t */\n\tpublic getCommonAncestor( position: Position ): Node | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors();\n\t\tconst ancestorsB = position.getAncestors();\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ];\n\t}\n\n\t/**\n\t * Checks whether this position equals given position.\n\t *\n\t * @param {module:engine/view/position~Position} otherPosition Position to compare with.\n\t * @returns {Boolean} True if positions are same.\n\t */\n\tpublic isEqual( otherPosition: Position ): boolean {\n\t\treturn ( this.parent == otherPosition.parent && this.offset == otherPosition.offset );\n\t}\n\n\t/**\n\t * Checks whether this position is located before given position. When method returns `false` it does not mean that\n\t * this position is after give one. Two positions may be located inside separate roots and in that situation this\n\t * method will still return `false`.\n\t *\n\t * @see module:engine/view/position~Position#isAfter\n\t * @see module:engine/view/position~Position#compareWith\n\t * @param {module:engine/view/position~Position} otherPosition Position to compare with.\n\t * @returns {Boolean} Returns `true` if this position is before given position.\n\t */\n\tpublic isBefore( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'before';\n\t}\n\n\t/**\n\t * Checks whether this position is located after given position. When method returns `false` it does not mean that\n\t * this position is before give one. Two positions may be located inside separate roots and in that situation this\n\t * method will still return `false`.\n\t *\n\t * @see module:engine/view/position~Position#isBefore\n\t * @see module:engine/view/position~Position#compareWith\n\t * @param {module:engine/view/position~Position} otherPosition Position to compare with.\n\t * @returns {Boolean} Returns `true` if this position is after given position.\n\t */\n\tpublic isAfter( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'after';\n\t}\n\n\t/**\n\t * Checks whether this position is before, after or in same position that other position. Two positions may be also\n\t * different when they are located in separate roots.\n\t *\n\t * @param {module:engine/view/position~Position} otherPosition Position to compare with.\n\t * @returns {module:engine/view/position~PositionRelation}\n\t */\n\tpublic compareWith( otherPosition: Position ): PositionRelation {\n\t\tif ( this.root !== otherPosition.root ) {\n\t\t\treturn 'different';\n\t\t}\n\n\t\tif ( this.isEqual( otherPosition ) ) {\n\t\t\treturn 'same';\n\t\t}\n\n\t\t// Get path from root to position's parent element.\n\t\tconst thisPath = this.parent.is( 'node' ) ? this.parent.getPath() : [];\n\t\tconst otherPath = otherPosition.parent.is( 'node' ) ? otherPosition.parent.getPath() : [];\n\n\t\t// Add the positions' offsets to the parents offsets.\n\t\tthisPath.push( this.offset );\n\t\totherPath.push( otherPosition.offset );\n\n\t\t// Compare both path arrays to find common ancestor.\n\t\tconst result = compareArrays( thisPath, otherPath );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'prefix':\n\t\t\t\treturn 'before';\n\n\t\t\tcase 'extension':\n\t\t\t\treturn 'after';\n\n\t\t\tdefault:\n\t\t\t\treturn thisPath[ result as number ] < otherPath[ result as number ] ? 'before' : 'after';\n\t\t}\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/view/treewalker~TreeWalker TreeWalker} instance with this positions as a start position.\n\t *\n\t * @param {Object} options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}\n\t * @param {module:engine/view/range~Range} [options.boundaries=null] Range to define boundaries of the iterator.\n\t * @param {Boolean} [options.singleCharacters=false]\n\t * @param {Boolean} [options.shallow=false]\n\t * @param {Boolean} [options.ignoreElementEnd=false]\n\t */\n\tpublic getWalker( options: TreeWalkerOptions = {} ): TreeWalker {\n\t\toptions.startPosition = this;\n\n\t\treturn new TreeWalker( options );\n\t}\n\n\tpublic clone(): Position {\n\t\treturn new Position( this.parent, this.offset );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link module:engine/view/position~Position._createBefore},\n\t * * {@link module:engine/view/position~Position._createAfter}.\n\t *\n\t * @protected\n\t * @param {module:engine/view/item~Item|module:engine/view/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic static _createAt( itemOrPosition: Item | Position, offset?: number | 'before' | 'after' | 'end' ): Position {\n\t\tif ( itemOrPosition instanceof Position ) {\n\t\t\treturn new this( itemOrPosition.parent, itemOrPosition.offset );\n\t\t} else {\n\t\t\tconst node = itemOrPosition;\n\n\t\t\tif ( offset == 'end' ) {\n\t\t\t\toffset = node.is( '$text' ) ? node.data.length : ( node as any ).childCount;\n\t\t\t} else if ( offset == 'before' ) {\n\t\t\t\treturn this._createBefore( node );\n\t\t\t} else if ( offset == 'after' ) {\n\t\t\t\treturn this._createAfter( node );\n\t\t\t} else if ( offset !== 0 && !offset ) {\n\t\t\t\t/**\n\t\t\t\t * {@link module:engine/view/view~View#createPositionAt `View#createPositionAt()`}\n\t\t\t\t * requires the offset to be specified when the first parameter is a view item.\n\t\t\t\t *\n\t\t\t\t * @error view-createpositionat-offset-required\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'view-createpositionat-offset-required', node );\n\t\t\t}\n\n\t\t\treturn new Position( node as any, offset as number );\n\t\t}\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @protected\n\t * @param {module:engine/view/item~Item} item View item after which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic static _createAfter( item: Item ): Position {\n\t\t// TextProxy is not a instance of Node so we need do handle it in specific way.\n\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\treturn new Position( item.textNode, item.offsetInText + item.data.length );\n\t\t}\n\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You can not make a position after a root.\n\t\t\t *\n\t\t\t * @error view-position-after-root\n\t\t\t * @param {module:engine/view/node~Node} root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-position-after-root', item, { root: item } );\n\t\t}\n\n\t\treturn new Position( item.parent, ( item.index as number ) + 1 );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @protected\n\t * @param {module:engine/view/item~Item} item View item before which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic static _createBefore( item: Item ): Position {\n\t\t// TextProxy is not a instance of Node so we need do handle it in specific way.\n\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\treturn new Position( item.textNode, item.offsetInText );\n\t\t}\n\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You cannot make a position before a root.\n\t\t\t *\n\t\t\t * @error view-position-before-root\n\t\t\t * @param {module:engine/view/node~Node} root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-position-before-root', item, { root: item } );\n\t\t}\n\n\t\treturn new Position( item.parent, item.index as number );\n\t}\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\tposition.is( 'position' ); // -> true\n *\t\tposition.is( 'view:position' ); // -> true\n *\n *\t\tposition.is( 'model:position' ); // -> false\n *\t\tposition.is( 'element' ); // -> false\n *\t\tposition.is( 'range' ); // -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nPosition.prototype.is = function( type: string ): boolean {\n\treturn type === 'position' || type === 'view:position';\n};\n\n/**\n * A flag indicating whether this position is `'before'` or `'after'` or `'same'` as given position.\n * If positions are in different roots `'different'` flag is returned.\n *\n * @typedef {String} module:engine/view/position~PositionRelation\n */\nexport type PositionRelation = 'before' | 'after' | 'same' | 'different';\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/range\n */\n\nimport TypeCheckable from './typecheckable';\nimport Position from './position';\n\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Item from './item';\nimport type Node from './node';\nimport { default as TreeWalker, type TreeWalkerValue, type TreeWalkerOptions } from './treewalker';\n\n/**\n * Range in the view tree. A range is represented by its start and end {@link module:engine/view/position~Position positions}.\n *\n * In order to create a new position instance use the `createPosition*()` factory methods available in:\n *\n * * {@link module:engine/view/view~View}\n * * {@link module:engine/view/downcastwriter~DowncastWriter}\n * * {@link module:engine/view/upcastwriter~UpcastWriter}\n */\nexport default class Range extends TypeCheckable {\n\tpublic start: Position;\n\tpublic end: Position;\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** Constructor creates it's own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param {module:engine/view/position~Position} start Start position.\n\t * @param {module:engine/view/position~Position} [end] End position. If not set, range will be collapsed at the `start` position.\n\t */\n\tconstructor( start: Position, end: Position | null = null ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Start position.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/position~Position}\n\t\t */\n\t\tthis.start = start.clone();\n\n\t\t/**\n\t\t * End position.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/position~Position}\n\t\t */\n\t\tthis.end = end ? end.clone() : start.clone();\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all {@link module:engine/view/item~Item view items} that are in this range and returns\n\t * them together with additional information like length or {@link module:engine/view/position~Position positions},\n\t * grouped as {@link module:engine/view/treewalker~TreeWalkerValue}.\n\t *\n\t * This iterator uses {@link module:engine/view/treewalker~TreeWalker TreeWalker} with `boundaries` set to this range and\n\t * `ignoreElementEnd` option\n\t * set to `true`.\n\t *\n\t * @returns {Iterable.<module:engine/view/treewalker~TreeWalkerValue>}\n\t */\n\tpublic* [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\tyield* new TreeWalker( { boundaries: this, ignoreElementEnd: true } );\n\t}\n\n\t/**\n\t * Returns whether the range is collapsed, that is it start and end positions are equal.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this.start.isEqual( this.end );\n\t}\n\n\t/**\n\t * Returns whether this range is flat, that is if {@link module:engine/view/range~Range#start start} position and\n\t * {@link module:engine/view/range~Range#end end} position are in the same {@link module:engine/view/position~Position#parent parent}.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isFlat(): boolean {\n\t\treturn this.start.parent === this.end.parent;\n\t}\n\n\t/**\n\t * Range root element.\n\t *\n\t * @type {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.start.root;\n\t}\n\n\t/**\n\t * Creates a maximal range that has the same content as this range but is expanded in both ways (at the beginning\n\t * and at the end).\n\t *\n\t * For example:\n\t *\n\t *\t\t<p>Foo</p><p><b>{Bar}</b></p> -> <p>Foo</p>[<p><b>Bar</b>]</p>\n\t *\t\t<p><b>foo</b>{bar}<span></span></p> -> <p><b>foo[</b>bar<span></span>]</p>\n\t *\n\t * Note that in the sample above:\n\t *\n\t * - `<p>` have type of {@link module:engine/view/containerelement~ContainerElement},\n\t * - `<b>` have type of {@link module:engine/view/attributeelement~AttributeElement},\n\t * - `<span>` have type of {@link module:engine/view/uielement~UIElement}.\n\t *\n\t * @returns {module:engine/view/range~Range} Enlarged range.\n\t */\n\tpublic getEnlarged(): Range {\n\t\tlet start = this.start.getLastMatchingPosition( enlargeTrimSkip, { direction: 'backward' } );\n\t\tlet end = this.end.getLastMatchingPosition( enlargeTrimSkip );\n\n\t\t// Fix positions, in case if they are in Text node.\n\t\tif ( start.parent.is( '$text' ) && start.isAtStart ) {\n\t\t\tstart = Position._createBefore( start.parent );\n\t\t}\n\n\t\tif ( end.parent.is( '$text' ) && end.isAtEnd ) {\n\t\t\tend = Position._createAfter( end.parent );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Creates a minimum range that has the same content as this range but is trimmed in both ways (at the beginning\n\t * and at the end).\n\t *\n\t * For example:\n\t *\n\t *\t\t<p>Foo</p>[<p><b>Bar</b>]</p> -> <p>Foo</p><p><b>{Bar}</b></p>\n\t *\t\t<p><b>foo[</b>bar<span></span>]</p> -> <p><b>foo</b>{bar}<span></span></p>\n\t *\n\t * Note that in the sample above:\n\t *\n\t * - `<p>` have type of {@link module:engine/view/containerelement~ContainerElement},\n\t * - `<b>` have type of {@link module:engine/view/attributeelement~AttributeElement},\n\t * - `<span>` have type of {@link module:engine/view/uielement~UIElement}.\n\t *\n\t * @returns {module:engine/view/range~Range} Shrink range.\n\t */\n\tpublic getTrimmed(): Range {\n\t\tlet start = this.start.getLastMatchingPosition( enlargeTrimSkip );\n\n\t\tif ( start.isAfter( this.end ) || start.isEqual( this.end ) ) {\n\t\t\treturn new Range( start, start );\n\t\t}\n\n\t\tlet end = this.end.getLastMatchingPosition( enlargeTrimSkip, { direction: 'backward' } );\n\t\tconst nodeAfterStart = start.nodeAfter;\n\t\tconst nodeBeforeEnd = end.nodeBefore;\n\n\t\t// Because TreeWalker prefers positions next to text node, we need to move them manually into these text nodes.\n\t\tif ( nodeAfterStart && nodeAfterStart.is( '$text' ) ) {\n\t\t\tstart = new Position( nodeAfterStart, 0 );\n\t\t}\n\n\t\tif ( nodeBeforeEnd && nodeBeforeEnd.is( '$text' ) ) {\n\t\t\tend = new Position( nodeBeforeEnd, nodeBeforeEnd.data.length );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Two ranges are equal if their start and end positions are equal.\n\t *\n\t * @param {module:engine/view/range~Range} otherRange Range to compare with.\n\t * @returns {Boolean} `true` if ranges are equal, `false` otherwise\n\t */\n\tpublic isEqual( otherRange: Range ): boolean {\n\t\treturn this == otherRange || ( this.start.isEqual( otherRange.start ) && this.end.isEqual( otherRange.end ) );\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link module:engine/view/position~Position position}.\n\t *\n\t * @param {module:engine/view/position~Position} position Position to check.\n\t * @returns {Boolean} `true` if given {@link module:engine/view/position~Position position} is contained in this range,\n\t * `false` otherwise.\n\t */\n\tpublic containsPosition( position: Position ): boolean {\n\t\treturn position.isAfter( this.start ) && position.isBefore( this.end );\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link module:engine/view/range~Range range}.\n\t *\n\t * @param {module:engine/view/range~Range} otherRange Range to check.\n\t * @param {Boolean} [loose=false] Whether the check is loose or strict. If the check is strict (`false`), compared range cannot\n\t * start or end at the same position as this range boundaries. If the check is loose (`true`), compared range can start, end or\n\t * even be equal to this range. Note that collapsed ranges are always compared in strict mode.\n\t * @returns {Boolean} `true` if given {@link module:engine/view/range~Range range} boundaries are contained by this range, `false`\n\t * otherwise.\n\t */\n\tpublic containsRange( otherRange: Range, loose: boolean = false ): boolean {\n\t\tif ( otherRange.isCollapsed ) {\n\t\t\tloose = false;\n\t\t}\n\n\t\tconst containsStart = this.containsPosition( otherRange.start ) || ( loose && this.start.isEqual( otherRange.start ) );\n\t\tconst containsEnd = this.containsPosition( otherRange.end ) || ( loose && this.end.isEqual( otherRange.end ) );\n\n\t\treturn containsStart && containsEnd;\n\t}\n\n\t/**\n\t * Computes which part(s) of this {@link module:engine/view/range~Range range} is not a part of given\n\t * {@link module:engine/view/range~Range range}.\n\t * Returned array contains zero, one or two {@link module:engine/view/range~Range ranges}.\n\t *\n\t * Examples:\n\t *\n\t *\t\tlet foo = downcastWriter.createText( 'foo' );\n\t *\t\tlet img = downcastWriter.createContainerElement( 'img' );\n\t *\t\tlet bar = downcastWriter.createText( 'bar' );\n\t *\t\tlet p = downcastWriter.createContainerElement( 'p', null, [ foo, img, bar ] );\n\t *\n\t *\t\tlet range = view.createRange( view.createPositionAt( foo, 2 ), view.createPositionAt( bar, 1 ); // \"o\", img, \"b\" are in range.\n\t *\t\tlet otherRange = view.createRange( // \"oo\", img, \"ba\" are in range.\n\t *\t\t\tview.createPositionAt( foo, 1 ),\n\t *\t\t\tview.createPositionAt( bar, 2 )\n\t *\t\t);\n\t *\t\tlet transformed = range.getDifference( otherRange );\n\t *\t\t// transformed array has no ranges because `otherRange` contains `range`\n\t *\n\t *\t\totherRange = view.createRange( view.createPositionAt( foo, 1 ), view.createPositionAt( p, 2 ); // \"oo\", img are in range.\n\t *\t\ttransformed = range.getDifference( otherRange );\n\t *\t\t// transformed array has one range: from ( p, 2 ) to ( bar, 1 )\n\t *\n\t *\t\totherRange = view.createRange( view.createPositionAt( p, 1 ), view.createPositionAt( p, 2 ) ); // img is in range.\n\t *\t\ttransformed = range.getDifference( otherRange );\n\t *\t\t// transformed array has two ranges: from ( foo, 1 ) to ( p, 1 ) and from ( p, 2 ) to ( bar, 1 )\n\t *\n\t * @param {module:engine/view/range~Range} otherRange Range to differentiate against.\n\t * @returns {Array.<module:engine/view/range~Range>} The difference between ranges.\n\t */\n\tpublic getDifference( otherRange: Range ): Array<Range> {\n\t\tconst ranges: Array<Range> = [];\n\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect.\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the start to the middle of this range.\n\t\t\t\tranges.push( new Range( this.start, otherRange.start ) );\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the middle of this range to the end.\n\t\t\t\tranges.push( new Range( otherRange.end, this.end ) );\n\t\t\t}\n\t\t} else {\n\t\t\t// Ranges do not intersect, return the original range.\n\t\t\tranges.push( this.clone() );\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Returns an intersection of this {@link module:engine/view/range~Range range} and given {@link module:engine/view/range~Range range}.\n\t * Intersection is a common part of both of those ranges. If ranges has no common part, returns `null`.\n\t *\n\t * Examples:\n\t *\n\t *\t\tlet foo = downcastWriter.createText( 'foo' );\n\t *\t\tlet img = downcastWriter.createContainerElement( 'img' );\n\t *\t\tlet bar = downcastWriter.createText( 'bar' );\n\t *\t\tlet p = downcastWriter.createContainerElement( 'p', null, [ foo, img, bar ] );\n\t *\n\t *\t\tlet range = view.createRange( view.createPositionAt( foo, 2 ), view.createPositionAt( bar, 1 ); // \"o\", img, \"b\" are in range.\n\t *\t\tlet otherRange = view.createRange( view.createPositionAt( foo, 1 ), view.createPositionAt( p, 2 ); // \"oo\", img are in range.\n\t *\t\tlet transformed = range.getIntersection( otherRange ); // range from ( foo, 1 ) to ( p, 2 ).\n\t *\n\t *\t\totherRange = view.createRange( view.createPositionAt( bar, 1 ), view.createPositionAt( bar, 3 ); \"ar\" is in range.\n\t *\t\ttransformed = range.getIntersection( otherRange ); // null - no common part.\n\t *\n\t * @param {module:engine/view/range~Range} otherRange Range to check for intersection.\n\t * @returns {module:engine/view/range~Range|null} A common part of given ranges or `null` if ranges have no common part.\n\t */\n\tpublic getIntersection( otherRange: Range ): Range | null {\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect, so a common range will be returned.\n\t\t\t// At most, it will be same as this range.\n\t\t\tlet commonRangeStart = this.start;\n\t\t\tlet commonRangeEnd = this.end;\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means thaNt we have to\n\t\t\t\t// shrink common range to the given range start.\n\t\t\t\tcommonRangeStart = otherRange.start;\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// shrink common range to the given range end.\n\t\t\t\tcommonRangeEnd = otherRange.end;\n\t\t\t}\n\n\t\t\treturn new Range( commonRangeStart, commonRangeEnd );\n\t\t}\n\n\t\t// Ranges do not intersect, so they do not have common part.\n\t\treturn null;\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/view/treewalker~TreeWalker TreeWalker} instance with this range as a boundary.\n\t *\n\t * @param {Object} options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t * @param {module:engine/view/position~Position} [options.startPosition]\n\t * @param {Boolean} [options.singleCharacters=false]\n\t * @param {Boolean} [options.shallow=false]\n\t * @param {Boolean} [options.ignoreElementEnd=false]\n\t * @returns {module:engine/view/treewalker~TreeWalker}\n\t */\n\tpublic getWalker( options: TreeWalkerOptions = {} ): TreeWalker {\n\t\toptions.boundaries = this;\n\n\t\treturn new TreeWalker( options );\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/node~Node} or {@link module:engine/view/documentfragment~DocumentFragment}\n\t * which is a common ancestor of range's both ends (in which the entire range is contained).\n\t *\n\t * @returns {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment|null}\n\t */\n\tpublic getCommonAncestor(): Node | DocumentFragment | null {\n\t\treturn this.start.getCommonAncestor( this.end );\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/view/element~Element Element} contained by the range.\n\t * The element will be returned when it is the **only** node within the range and **fully–contained**\n\t * at the same time.\n\t *\n\t * @returns {module:engine/view/element~Element|null}\n\t */\n\tpublic getContainedElement(): Element | null {\n\t\tif ( this.isCollapsed ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tlet nodeAfterStart = this.start.nodeAfter;\n\t\tlet nodeBeforeEnd = this.end.nodeBefore;\n\n\t\t// Handle the situation when the range position is at the beginning / at the end of a text node.\n\t\t// In such situation `.nodeAfter` and `.nodeBefore` are `null` but the range still might be spanning\n\t\t// over one element.\n\t\t//\n\t\t// <p>Foo{<span class=\"widget\"></span>}bar</p> vs <p>Foo[<span class=\"widget\"></span>]bar</p>\n\t\t//\n\t\t// These are basically the same range, only the difference is if the range position is at\n\t\t// at the end/at the beginning of a text node or just before/just after the text node.\n\t\t//\n\t\tif ( this.start.parent.is( '$text' ) && this.start.isAtEnd && this.start.parent.nextSibling ) {\n\t\t\tnodeAfterStart = this.start.parent.nextSibling;\n\t\t}\n\n\t\tif ( this.end.parent.is( '$text' ) && this.end.isAtStart && this.end.parent.previousSibling ) {\n\t\t\tnodeBeforeEnd = this.end.parent.previousSibling;\n\t\t}\n\n\t\tif ( nodeAfterStart && nodeAfterStart.is( 'element' ) && nodeAfterStart === nodeBeforeEnd ) {\n\t\t\treturn nodeAfterStart;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Clones this range.\n\t *\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic clone(): Range {\n\t\treturn new Range( this.start, this.end );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/view/item~Item view items} that are in this range and returns\n\t * them.\n\t *\n\t * This method uses {@link module:engine/view/treewalker~TreeWalker} with `boundaries` set to this range and `ignoreElementEnd` option\n\t * set to `true`. However it returns only {@link module:engine/view/item~Item items},\n\t * not {@link module:engine/view/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/view/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param {Object} options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t * @returns {Iterable.<module:engine/view/item~Item>}\n\t */\n\tpublic* getItems( options: TreeWalkerOptions = {} ): IterableIterator<Item> {\n\t\toptions.boundaries = this;\n\t\toptions.ignoreElementEnd = true;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.item;\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/view/position~Position positions} that are boundaries or\n\t * contained in this range.\n\t *\n\t * This method uses {@link module:engine/view/treewalker~TreeWalker} with `boundaries` set to this range. However it returns only\n\t * {@link module:engine/view/position~Position positions}, not {@link module:engine/view/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/view/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param {Object} options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t * @returns {Iterable.<module:engine/view/position~Position>}\n\t */\n\tpublic* getPositions( options: TreeWalkerOptions = {} ): IterableIterator<Position> {\n\t\toptions.boundaries = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tyield treeWalker.position;\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.nextPosition;\n\t\t}\n\t}\n\n\t/**\n\t * Checks and returns whether this range intersects with the given range.\n\t *\n\t * @param {module:engine/view/range~Range} otherRange Range to compare with.\n\t * @returns {Boolean} True if ranges intersect.\n\t */\n\tpublic isIntersecting( otherRange: Range ): boolean {\n\t\treturn this.start.isBefore( otherRange.end ) && this.end.isAfter( otherRange.start );\n\t}\n\n\t/**\n\t * Creates a range from the given parents and offsets.\n\t *\n\t * @protected\n\t * @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} startElement Start position\n\t * parent element.\n\t * @param {Number} startOffset Start position offset.\n\t * @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} endElement End position\n\t * parent element.\n\t * @param {Number} endOffset End position offset.\n\t * @returns {module:engine/view/range~Range} Created range.\n\t */\n\tpublic static _createFromParentsAndOffsets(\n\t\tstartElement: Element | DocumentFragment,\n\t\tstartOffset: number,\n\t\tendElement: Element | DocumentFragment,\n\t\tendOffset: number\n\t): Range {\n\t\treturn new this(\n\t\t\tnew Position( startElement, startOffset ),\n\t\t\tnew Position( endElement, endOffset )\n\t\t);\n\t}\n\n\t/**\n\t * Creates a new range, spreading from specified {@link module:engine/view/position~Position position} to a position moved by\n\t * given `shift`. If `shift` is a negative value, shifted position is treated as the beginning of the range.\n\t *\n\t * @protected\n\t * @param {module:engine/view/position~Position} position Beginning of the range.\n\t * @param {Number} shift How long the range should be.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic static _createFromPositionAndShift( position: Position, shift: number ): Range {\n\t\tconst start = position;\n\t\tconst end = position.getShiftedBy( shift );\n\n\t\treturn shift > 0 ? new this( start, end ) : new this( end, start );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @protected\n\t * @param {module:engine/view/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic static _createIn( element: Element | DocumentFragment ): Range {\n\t\treturn this._createFromParentsAndOffsets( element, 0, element, element.childCount );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t *\n\t * @protected\n\t * @param {module:engine/view/item~Item} item\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic static _createOn( item: Item ): Range {\n\t\tconst size = item.is( '$textProxy' ) ? item.offsetSize : 1;\n\n\t\treturn this._createFromPositionAndShift( Position._createBefore( item ), size );\n\t}\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\trange.is( 'range' ); // -> true\n *\t\trange.is( 'view:range' ); // -> true\n *\n *\t\trange.is( 'model:range' ); // -> false\n *\t\trange.is( 'element' ); // -> false\n *\t\trange.is( 'selection' ); // -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nRange.prototype.is = function( type: string ): boolean {\n\treturn type === 'range' || type === 'view:range';\n};\n\n// Function used by getEnlarged and getTrimmed methods.\nfunction enlargeTrimSkip( value: TreeWalkerValue ): boolean {\n\tif ( value.item.is( 'attributeElement' ) || value.item.is( 'uiElement' ) ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/selection\n */\n\nimport TypeCheckable from './typecheckable';\nimport Range from './range';\nimport Position from './position';\nimport Node from './node';\nimport DocumentSelection from './documentselection';\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tcount,\n\tisIterable\n} from '@ckeditor/ckeditor5-utils';\n\nimport type Element from './element';\nimport type Item from './item';\nimport type EditableElement from './editableelement';\n\n/**\n * Class representing an arbirtary selection in the view.\n * See also {@link module:engine/view/documentselection~DocumentSelection}.\n *\n * New selection instances can be created via the constructor or one these methods:\n *\n * * {@link module:engine/view/view~View#createSelection `View#createSelection()`},\n * * {@link module:engine/view/upcastwriter~UpcastWriter#createSelection `UpcastWriter#createSelection()`}.\n *\n * A selection can consist of {@link module:engine/view/range~Range ranges} that can be set by using\n * the {@link module:engine/view/selection~Selection#setTo `Selection#setTo()`} method.\n */\nexport default class Selection extends EmitterMixin( TypeCheckable ) {\n\tprivate _ranges: Array<Range>;\n\tprivate _lastRangeBackward: boolean;\n\tprivate _isFake: boolean;\n\tprivate _fakeSelectionLabel: string;\n\n\t/**\n\t * Creates new selection instance.\n\t *\n\t * **Note**: The selection constructor is available as a factory method:\n\t *\n\t * * {@link module:engine/view/view~View#createSelection `View#createSelection()`},\n\t * * {@link module:engine/view/upcastwriter~UpcastWriter#createSelection `UpcastWriter#createSelection()`}.\n\t *\n\t * \t\t// Creates empty selection without ranges.\n\t *\t\tconst selection = writer.createSelection();\n\t *\n\t *\t\t// Creates selection at the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tconst selection = writer.createSelection( range );\n\t *\n\t *\t\t// Creates selection at the given ranges\n\t * \t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\tconst selection = writer.createSelection( ranges );\n\t *\n\t *\t\t// Creates selection from the other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tconst selection = writer.createSelection( otherSelection );\n\t *\n\t *\t\t// Creates selection from the document selection.\n\t *\t\tconst selection = writer.createSelection( editor.editing.view.document.selection );\n\t *\n\t * \t\t// Creates selection at the given position.\n\t *\t\tconst position = writer.createPositionFromPath( root, path );\n\t *\t\tconst selection = writer.createSelection( position );\n\t *\n\t *\t\t// Creates collapsed selection at the position of given item and offset.\n\t *\t\tconst paragraph = writer.createContainerElement( 'paragraph' );\n\t *\t\tconst selection = writer.createSelection( paragraph, offset );\n\t *\n\t *\t\t// Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t *\t\t// first child of that element and ends after the last child of that element.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t *\t\t// Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t *\t\t// just after the item.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'on' );\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Creates backward selection.\n\t *\t\tconst selection = writer.createSelection( range, { backward: true } );\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t *\t\t// Creates fake selection with label.\n\t *\t\tconst selection = writer.createSelection( range, { fake: true, label: 'foo' } );\n\t *\n\t * @param {module:engine/view/selection~Selectable} [selectable=null]\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Offset or place when selectable is an `Item`.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t */\n\tconstructor(\n\t\t...args: [] | [\n\t\t\tselectable?: Selectable,\n\t\t\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in',\n\t\t\toptions?: {\n\t\t\t\tbackward?: boolean;\n\t\t\t\tfake?: boolean;\n\t\t\t\tlabel?: string;\n\t\t\t}\n\t\t] | [\n\t\t\tselectable?: Selectable,\n\t\t\toptions?: {\n\t\t\t\tbackward?: boolean;\n\t\t\t\tfake?: boolean;\n\t\t\t\tlabel?: string;\n\t\t\t}\n\t\t]\n\t) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Stores all ranges that are selected.\n\t\t *\n\t\t * @protected\n\t\t * @member {Array.<module:engine/view/range~Range>}\n\t\t */\n\t\tthis._ranges = [];\n\n\t\t/**\n\t\t * Specifies whether the last added range was added as a backward or forward range.\n\t\t *\n\t\t * @protected\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._lastRangeBackward = false;\n\n\t\t/**\n\t\t * Specifies whether selection instance is fake.\n\t\t *\n\t\t * @private\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._isFake = false;\n\n\t\t/**\n\t\t * Fake selection's label.\n\t\t *\n\t\t * @private\n\t\t * @member {String}\n\t\t */\n\t\tthis._fakeSelectionLabel = '';\n\n\t\tif ( args.length ) {\n\t\t\tthis.setTo( ...args );\n\t\t}\n\t}\n\n\t/**\n\t * Returns true if selection instance is marked as `fake`.\n\t *\n\t * @see #setTo\n\t * @type {Boolean}\n\t */\n\tpublic get isFake(): boolean {\n\t\treturn this._isFake;\n\t}\n\n\t/**\n\t * Returns fake selection label.\n\t *\n\t * @see #setTo\n\t * @type {String}\n\t */\n\tpublic get fakeSelectionLabel(): string {\n\t\treturn this._fakeSelectionLabel;\n\t}\n\n\t/**\n\t * Selection anchor. Anchor may be described as a position where the selection starts. Together with\n\t * {@link #focus focus} they define the direction of selection, which is important\n\t * when expanding/shrinking selection. Anchor is always the start or end of the most recent added range.\n\t * It may be a bit unintuitive when there are multiple ranges in selection.\n\t *\n\t * @see #focus\n\t * @type {module:engine/view/position~Position}\n\t */\n\tpublic get anchor(): Position | null {\n\t\tif ( !this._ranges.length ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\t\tconst anchor = this._lastRangeBackward ? range.end : range.start;\n\n\t\treturn anchor.clone();\n\t}\n\n\t/**\n\t * Selection focus. Focus is a position where the selection ends.\n\t *\n\t * @see #anchor\n\t * @type {module:engine/view/position~Position}\n\t */\n\tpublic get focus(): Position | null {\n\t\tif ( !this._ranges.length ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\t\tconst focus = this._lastRangeBackward ? range.start : range.end;\n\n\t\treturn focus.clone();\n\t}\n\n\t/**\n\t * Returns whether the selection is collapsed. Selection is collapsed when there is exactly one range which is\n\t * collapsed.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this.rangeCount === 1 && this._ranges[ 0 ].isCollapsed;\n\t}\n\n\t/**\n\t * Returns number of ranges in selection.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._ranges.length;\n\t}\n\n\t/**\n\t * Specifies whether the {@link #focus} precedes {@link #anchor}.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn !this.isCollapsed && this._lastRangeBackward;\n\t}\n\n\t/**\n\t * {@link module:engine/view/editableelement~EditableElement EditableElement} instance that contains this selection, or `null`\n\t * if the selection is not inside an editable element.\n\t *\n\t * @type {module:engine/view/editableelement~EditableElement|null}\n\t */\n\tpublic get editableElement(): EditableElement | null {\n\t\tif ( this.anchor ) {\n\t\t\treturn this.anchor.editableElement;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns an iterable that contains copies of all ranges added to the selection.\n\t *\n\t * @returns {Iterable.<module:engine/view/range~Range>}\n\t */\n\tpublic* getRanges(): IterableIterator<Range> {\n\t\tfor ( const range of this._ranges ) {\n\t\t\tyield range.clone();\n\t\t}\n\t}\n\n\t/**\n\t * Returns copy of the first range in the selection. First range is the one which\n\t * {@link module:engine/view/range~Range#start start} position {@link module:engine/view/position~Position#isBefore is before} start\n\t * position of all other ranges (not to confuse with the first range added to the selection).\n\t * Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/range~Range|null}\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\tlet first = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !first || range.start.isBefore( first.start ) ) {\n\t\t\t\tfirst = range;\n\t\t\t}\n\t\t}\n\n\t\treturn first ? first.clone() : null;\n\t}\n\n\t/**\n\t * Returns copy of the last range in the selection. Last range is the one which {@link module:engine/view/range~Range#end end}\n\t * position {@link module:engine/view/position~Position#isAfter is after} end position of all other ranges (not to confuse\n\t * with the last range added to the selection). Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/range~Range|null}\n\t */\n\tpublic getLastRange(): Range | null {\n\t\tlet last = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !last || range.end.isAfter( last.end ) ) {\n\t\t\t\tlast = range;\n\t\t\t}\n\t\t}\n\n\t\treturn last ? last.clone() : null;\n\t}\n\n\t/**\n\t * Returns copy of the first position in the selection. First position is the position that\n\t * {@link module:engine/view/position~Position#isBefore is before} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/position~Position|null}\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\tconst firstRange = this.getFirstRange();\n\n\t\treturn firstRange ? firstRange.start.clone() : null;\n\t}\n\n\t/**\n\t * Returns copy of the last position in the selection. Last position is the position that\n\t * {@link module:engine/view/position~Position#isAfter is after} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/position~Position|null}\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\tconst lastRange = this.getLastRange();\n\n\t\treturn lastRange ? lastRange.end.clone() : null;\n\t}\n\n\t/**\n\t * Checks whether, this selection is equal to given selection. Selections are equal if they have same directions,\n\t * same number of ranges and all ranges from one selection equal to a range from other selection.\n\t *\n\t * @param {module:engine/view/selection~Selection|module:engine/view/documentselection~DocumentSelection} otherSelection\n\t * Selection to compare with.\n\t * @returns {Boolean} `true` if selections are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherSelection: Selection | DocumentSelection ): boolean {\n\t\tif ( this.isFake != otherSelection.isFake ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this.isFake && this.fakeSelectionLabel != otherSelection.fakeSelectionLabel ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this.rangeCount != otherSelection.rangeCount ) {\n\t\t\treturn false;\n\t\t} else if ( this.rangeCount === 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( !this.anchor!.isEqual( otherSelection.anchor! ) || !this.focus!.isEqual( otherSelection.focus! ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tfor ( const thisRange of this._ranges ) {\n\t\t\tlet found = false;\n\n\t\t\tfor ( const otherRange of ( otherSelection as any )._ranges ) {\n\t\t\t\tif ( thisRange.isEqual( otherRange ) ) {\n\t\t\t\t\tfound = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( !found ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks whether this selection is similar to given selection. Selections are similar if they have same directions, same\n\t * number of ranges, and all {@link module:engine/view/range~Range#getTrimmed trimmed} ranges from one selection are\n\t * equal to any trimmed range from other selection.\n\t *\n\t * @param {module:engine/view/selection~Selection|module:engine/view/documentselection~DocumentSelection} otherSelection\n\t * Selection to compare with.\n\t * @returns {Boolean} `true` if selections are similar, `false` otherwise.\n\t */\n\tpublic isSimilar( otherSelection: Selection | DocumentSelection ): boolean {\n\t\tif ( this.isBackward != otherSelection.isBackward ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst numOfRangesA = count( this.getRanges() );\n\t\tconst numOfRangesB = count( otherSelection.getRanges() );\n\n\t\t// If selections have different number of ranges, they cannot be similar.\n\t\tif ( numOfRangesA != numOfRangesB ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// If both selections have no ranges, they are similar.\n\t\tif ( numOfRangesA == 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Check if each range in one selection has a similar range in other selection.\n\t\tfor ( let rangeA of this.getRanges() ) {\n\t\t\trangeA = rangeA.getTrimmed();\n\n\t\t\tlet found = false;\n\n\t\t\tfor ( let rangeB of otherSelection.getRanges() ) {\n\t\t\t\trangeB = rangeB.getTrimmed();\n\n\t\t\t\tif ( rangeA.start.isEqual( rangeB.start ) && rangeA.end.isEqual( rangeB.end ) ) {\n\t\t\t\t\tfound = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// For `rangeA`, neither range in `otherSelection` was similar. So selections are not similar.\n\t\t\tif ( !found ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// There were no ranges that weren't matched. Selections are similar.\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/view/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t *\n\t * @returns {module:engine/view/element~Element|null}\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\tif ( this.rangeCount !== 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.getFirstRange()!.getContainedElement();\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/view/selection~Selectable selectable}.\n\t *\n\t *\t\t// Sets selection to the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tselection.setTo( range );\n\t *\n\t *\t\t// Sets selection to given ranges.\n\t * \t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\tselection.setTo( range );\n\t *\n\t *\t\t// Sets selection to the other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tselection.setTo( otherSelection );\n\t *\n\t *\t \t// Sets selection to contents of DocumentSelection.\n\t *\t\tselection.setTo( editor.editing.view.document.selection );\n\t *\n\t * \t\t// Sets collapsed selection at the given position.\n\t *\t\tconst position = writer.createPositionAt( root, path );\n\t *\t\tselection.setTo( position );\n\t *\n\t * \t\t// Sets collapsed selection at the position of given item and offset.\n\t *\t\tselection.setTo( paragraph, offset );\n\t *\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t *\t\tselection.setTo( paragraph, 'in' );\n\t *\n\t * Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t *\t\tselection.setTo( paragraph, 'on' );\n\t *\n\t * \t\t// Clears selection. Removes all ranges.\n\t *\t\tselection.setTo( null );\n\t *\n\t * `Selection#setTo()` method allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Sets selection as backward.\n\t *\t\tselection.setTo( range, { backward: true } );\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t *\t\t// Creates fake selection with label.\n\t *\t\tselection.setTo( range, { fake: true, label: 'foo' } );\n\t *\n\t * @fires change\n\t * @param {module:engine/view/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t */\n\tpublic setTo(\n\t\t...args: [\n\t\t\tselectable?: Selectable,\n\t\t\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in',\n\t\t\toptions?: ConstructorParameters<typeof Selection>[ 2 ]\n\t\t] | [\n\t\t\tselectable?: Selectable,\n\t\t\toptions?: ConstructorParameters<typeof Selection>[ 2 ]\n\t\t]\n\t): void {\n\t\tlet [ selectable, placeOrOffset, options ] = args;\n\n\t\tif ( typeof placeOrOffset == 'object' ) {\n\t\t\toptions = placeOrOffset;\n\t\t\tplaceOrOffset = undefined;\n\t\t}\n\n\t\tif ( selectable === null ) {\n\t\t\tthis._setRanges( [] );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( selectable instanceof Selection || selectable instanceof DocumentSelection ) {\n\t\t\tthis._setRanges( selectable.getRanges(), selectable.isBackward );\n\t\t\tthis._setFakeOptions( { fake: selectable.isFake, label: selectable.fakeSelectionLabel } );\n\t\t} else if ( selectable instanceof Range ) {\n\t\t\tthis._setRanges( [ selectable ], options && options.backward );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( selectable instanceof Position ) {\n\t\t\tthis._setRanges( [ new Range( selectable ) ] );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( selectable instanceof Node ) {\n\t\t\tconst backward = !!options && !!options.backward;\n\t\t\tlet range;\n\n\t\t\tif ( placeOrOffset === undefined ) {\n\t\t\t\t/**\n\t\t\t\t * selection.setTo requires the second parameter when the first parameter is a node.\n\t\t\t\t *\n\t\t\t\t * @error view-selection-setto-required-second-parameter\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'view-selection-setto-required-second-parameter', this );\n\t\t\t} else if ( placeOrOffset == 'in' ) {\n\t\t\t\trange = Range._createIn( selectable as Element );\n\t\t\t} else if ( placeOrOffset == 'on' ) {\n\t\t\t\trange = Range._createOn( selectable );\n\t\t\t} else {\n\t\t\t\trange = new Range( Position._createAt( selectable, placeOrOffset ) );\n\t\t\t}\n\n\t\t\tthis._setRanges( [ range ], backward );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( isIterable( selectable ) ) {\n\t\t\t// We assume that the selectable is an iterable of ranges.\n\t\t\t// Array.from() is used to prevent setting ranges to the old iterable\n\t\t\tthis._setRanges( selectable, options && options.backward );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else {\n\t\t\t/**\n\t\t\t * Cannot set selection to given place.\n\t\t\t *\n\t\t\t * @error view-selection-setto-not-selectable\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-selection-setto-not-selectable', this );\n\t\t}\n\n\t\tthis.fire<ViewSelectionChangeEvent>( 'change' );\n\t}\n\n\t/**\n\t * Moves {@link #focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as {@link module:engine/view/view~View#createPositionAt view.createPositionAt()}\n\t * parameters.\n\t *\n\t * @fires change\n\t * @param {module:engine/view/item~Item|module:engine/view/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic setFocus( itemOrPosition: Item | Position, offset?: number | 'before' | 'end' | 'after' ): void {\n\t\tif ( this.anchor === null ) {\n\t\t\t/**\n\t\t\t * Cannot set selection focus if there are no ranges in selection.\n\t\t\t *\n\t\t\t * @error view-selection-setfocus-no-ranges\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-selection-setfocus-no-ranges', this );\n\t\t}\n\n\t\tconst newFocus = Position._createAt( itemOrPosition, offset );\n\n\t\tif ( newFocus.compareWith( this.focus! ) == 'same' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst anchor = this.anchor;\n\n\t\tthis._ranges.pop();\n\n\t\tif ( newFocus.compareWith( anchor ) == 'before' ) {\n\t\t\tthis._addRange( new Range( newFocus, anchor ), true );\n\t\t} else {\n\t\t\tthis._addRange( new Range( anchor, newFocus ) );\n\t\t}\n\n\t\tthis.fire<ViewSelectionChangeEvent>( 'change' );\n\t}\n\n\t/**\n\t * Replaces all ranges that were added to the selection with given array of ranges. Last range of the array\n\t * is treated like the last added range and is used to set {@link #anchor anchor} and {@link #focus focus}.\n\t * Accepts a flag describing in which way the selection is made.\n\t *\n\t * @private\n\t * @param {Iterable.<module:engine/view/range~Range>} newRanges Iterable object of ranges to set.\n\t * @param {Boolean} [isLastBackward=false] Flag describing if last added range was selected forward - from start to end\n\t * (`false`) or backward - from end to start (`true`). Defaults to `false`.\n\t */\n\tprivate _setRanges( newRanges: Iterable<Range>, isLastBackward: boolean = false ) {\n\t\t// New ranges should be copied to prevent removing them by setting them to `[]` first.\n\t\t// Only applies to situations when selection is set to the same selection or same selection's ranges.\n\t\tnewRanges = Array.from( newRanges );\n\n\t\tthis._ranges = [];\n\n\t\tfor ( const range of newRanges ) {\n\t\t\tthis._addRange( range );\n\t\t}\n\n\t\tthis._lastRangeBackward = !!isLastBackward;\n\t}\n\n\t/**\n\t * Sets this selection instance to be marked as `fake`. A fake selection does not render as browser native selection\n\t * over selected elements and is hidden to the user. This way, no native selection UI artifacts are displayed to\n\t * the user and selection over elements can be represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM (and be\n\t * properly handled by screen readers).\n\t *\n\t * @private\n\t * @param {Object} [options] Options.\n\t * @param {Boolean} [options.fake] If set to true selection will be marked as `fake`.\n\t * @param {String} [options.label=''] Fake selection label.\n\t */\n\tprivate _setFakeOptions( options: ConstructorParameters<typeof Selection>[ 2 ] = {} ) {\n\t\tthis._isFake = !!options.fake;\n\t\tthis._fakeSelectionLabel = options.fake ? options.label || '' : '';\n\t}\n\n\t/**\n\t * Adds a range to the selection. Added range is copied. This means that passed range is not saved in the\n\t * selection instance and you can safely operate on it.\n\t *\n\t * Accepts a flag describing in which way the selection is made - passed range might be selected from\n\t * {@link module:engine/view/range~Range#start start} to {@link module:engine/view/range~Range#end end}\n\t * or from {@link module:engine/view/range~Range#end end} to {@link module:engine/view/range~Range#start start}.\n\t * The flag is used to set {@link #anchor anchor} and {@link #focus focus} properties.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-selection-range-intersects` if added range intersects\n\t * with ranges already stored in Selection instance.\n\t *\n\t * @private\n\t * @fires change\n\t * @param {module:engine/view/range~Range} range\n\t * @param {Boolean} [isBackward]\n\t */\n\tprivate _addRange( range: Range, isBackward: boolean = false ): void {\n\t\tif ( !( range instanceof Range ) ) {\n\t\t\t/**\n\t\t\t * Selection range set to an object that is not an instance of {@link module:engine/view/range~Range}.\n\t\t\t *\n\t\t\t * @error view-selection-add-range-not-range\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-selection-add-range-not-range',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tthis._pushRange( range );\n\t\tthis._lastRangeBackward = !!isBackward;\n\t}\n\n\t/**\n\t * Adds range to selection - creates copy of given range so it can be safely used and modified.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-selection-range-intersects` if added range intersects\n\t * with ranges already stored in selection instance.\n\t *\n\t * @private\n\t * @param {module:engine/view/range~Range} range\n\t */\n\tprivate _pushRange( range: Range ): void {\n\t\tfor ( const storedRange of this._ranges ) {\n\t\t\tif ( range.isIntersecting( storedRange ) ) {\n\t\t\t\t/**\n\t\t\t\t * Trying to add a range that intersects with another range from selection.\n\t\t\t\t *\n\t\t\t\t * @error view-selection-range-intersects\n\t\t\t\t * @param {module:engine/view/range~Range} addedRange Range that was added to the selection.\n\t\t\t\t * @param {module:engine/view/range~Range} intersectingRange Range from selection that intersects with `addedRange`.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'view-selection-range-intersects',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ addedRange: range, intersectingRange: storedRange }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\n\t\tthis._ranges.push( new Range( range.start, range.end ) );\n\t}\n\n\t/**\n\t * Fired whenever selection ranges are changed through {@link ~Selection Selection API}.\n\t *\n\t * @event change\n\t */\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\tselection.is( 'selection' ); // -> true\n *\t\tselection.is( 'view:selection' ); // -> true\n *\n *\t\tselection.is( 'model:selection' ); // -> false\n *\t\tselection.is( 'element' ); // -> false\n *\t\tselection.is( 'range' ); // -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' || type === 'view:selection';\n};\n\nexport type ViewSelectionChangeEvent = {\n\tname: 'change';\n\targs: [];\n};\n\n/**\n * An entity that is used to set selection.\n *\n * See also {@link module:engine/view/selection~Selection#setTo}\n *\n * @typedef {\n *    module:engine/view/selection~Selection|\n *    module:engine/view/documentselection~DocumentSelection|\n *    module:engine/view/position~Position|\n *    Iterable.<module:engine/view/range~Range>|\n *    module:engine/view/range~Range|\n *    module:engine/view/item~Item|\n *    null\n * } module:engine/view/selection~Selectable\n */\nexport type Selectable = Selection | DocumentSelection | Position | Iterable<Range> | Range | Item | null;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/documentselection\n */\n\nimport TypeCheckable from './typecheckable';\nimport Selection, { type ViewSelectionChangeEvent } from './selection';\n\nimport { EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type EditableElement from './editableelement';\nimport type Element from './element';\nimport type Item from './item';\nimport type Position from './position';\nimport type Range from './range';\n\n/**\n * Class representing the document selection in the view.\n *\n * Its instance is available in {@link module:engine/view/document~Document#selection `Document#selection`}.\n *\n * It is similar to {@link module:engine/view/selection~Selection} but\n * it has a read-only API and can be modified only by the writer available in\n * the {@link module:engine/view/view~View#change `View#change()`} block\n * (so via {@link module:engine/view/downcastwriter~DowncastWriter#setSelection `DowncastWriter#setSelection()`}).\n */\nexport default class DocumentSelection extends EmitterMixin( TypeCheckable ) {\n\tprivate readonly _selection: Selection;\n\n\t/**\n\t * Creates new DocumentSelection instance.\n\t *\n\t * \t\t// Creates empty selection without ranges.\n\t *\t\tconst selection = new DocumentSelection();\n\t *\n\t *\t\t// Creates selection at the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tconst selection = new DocumentSelection( range );\n\t *\n\t *\t\t// Creates selection at the given ranges\n\t * \t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( start2, end2 ) ];\n\t *\t\tconst selection = new DocumentSelection( ranges );\n\t *\n\t *\t\t// Creates selection from the other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tconst selection = new DocumentSelection( otherSelection );\n\t *\n\t * \t\t// Creates selection at the given position.\n\t *\t\tconst position = writer.createPositionAt( root, offset );\n\t *\t\tconst selection = new DocumentSelection( position );\n\t *\n\t *\t\t// Creates collapsed selection at the position of given item and offset.\n\t *\t\tconst paragraph = writer.createContainerElement( 'paragraph' );\n\t *\t\tconst selection = new DocumentSelection( paragraph, offset );\n\t *\n\t *\t\t// Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t *\t\t// first child of that element and ends after the last child of that element.\n\t *\t\tconst selection = new DocumentSelection( paragraph, 'in' );\n\t *\n\t *\t\t// Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t *\t\t// just after the item.\n\t *\t\tconst selection = new DocumentSelection( paragraph, 'on' );\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Creates backward selection.\n\t *\t\tconst selection = new DocumentSelection( range, { backward: true } );\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t *\t\t// Creates fake selection with label.\n\t *\t\tconst selection = new DocumentSelection( range, { fake: true, label: 'foo' } );\n\t *\n\t * @param {module:engine/view/selection~Selectable} [selectable=null]\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Offset or place when selectable is an `Item`.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t */\n\tconstructor( ...args: ConstructorParameters<typeof Selection> ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Selection is used internally (`DocumentSelection` is a proxy to that selection).\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/view/selection~Selection}\n\t\t */\n\t\tthis._selection = new Selection();\n\n\t\t// Delegate change event to be fired on DocumentSelection instance.\n\t\tthis._selection.delegate( 'change' ).to( this );\n\n\t\t// Set selection data.\n\t\tif ( args.length ) {\n\t\t\tthis._selection.setTo( ...args );\n\t\t}\n\t}\n\n\t/**\n\t * Returns true if selection instance is marked as `fake`.\n\t *\n\t * @see #_setTo\n\t * @type {Boolean}\n\t */\n\tpublic get isFake(): boolean {\n\t\treturn this._selection.isFake;\n\t}\n\n\t/**\n\t * Returns fake selection label.\n\t *\n\t * @see #_setTo\n\t * @type {String}\n\t */\n\tpublic get fakeSelectionLabel(): string {\n\t\treturn this._selection.fakeSelectionLabel;\n\t}\n\n\t/**\n\t * Selection anchor. Anchor may be described as a position where the selection starts. Together with\n\t * {@link #focus focus} they define the direction of selection, which is important\n\t * when expanding/shrinking selection. Anchor is always the start or end of the most recent added range.\n\t * It may be a bit unintuitive when there are multiple ranges in selection.\n\t *\n\t * @see #focus\n\t * @type {module:engine/view/position~Position}\n\t */\n\tpublic get anchor(): Position | null {\n\t\treturn this._selection.anchor;\n\t}\n\n\t/**\n\t * Selection focus. Focus is a position where the selection ends.\n\t *\n\t * @see #anchor\n\t * @type {module:engine/view/position~Position}\n\t */\n\tpublic get focus(): Position | null {\n\t\treturn this._selection.focus;\n\t}\n\n\t/**\n\t * Returns whether the selection is collapsed. Selection is collapsed when there is exactly one range which is\n\t * collapsed.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this._selection.isCollapsed;\n\t}\n\n\t/**\n\t * Returns number of ranges in selection.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._selection.rangeCount;\n\t}\n\n\t/**\n\t * Specifies whether the {@link #focus} precedes {@link #anchor}.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn this._selection.isBackward;\n\t}\n\n\t/**\n\t * {@link module:engine/view/editableelement~EditableElement EditableElement} instance that contains this selection, or `null`\n\t * if the selection is not inside an editable element.\n\t *\n\t * @type {module:engine/view/editableelement~EditableElement|null}\n\t */\n\tpublic get editableElement(): EditableElement | null {\n\t\treturn this._selection.editableElement;\n\t}\n\n\t/**\n\t * Used for the compatibility with the {@link module:engine/view/selection~Selection#isEqual} method.\n\t *\n\t * @protected\n\t */\n\tpublic get _ranges(): Array<Range> {\n\t\treturn ( this._selection as any )._ranges;\n\t}\n\n\t/**\n\t * Returns an iterable that contains copies of all ranges added to the selection.\n\t *\n\t * @returns {Iterable.<module:engine/view/range~Range>}\n\t */\n\tpublic* getRanges(): IterableIterator<Range> {\n\t\tyield* this._selection.getRanges();\n\t}\n\n\t/**\n\t * Returns copy of the first range in the selection. First range is the one which\n\t * {@link module:engine/view/range~Range#start start} position {@link module:engine/view/position~Position#isBefore is before} start\n\t * position of all other ranges (not to confuse with the first range added to the selection).\n\t * Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/range~Range|null}\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\treturn this._selection.getFirstRange();\n\t}\n\n\t/**\n\t * Returns copy of the last range in the selection. Last range is the one which {@link module:engine/view/range~Range#end end}\n\t * position {@link module:engine/view/position~Position#isAfter is after} end position of all other ranges (not to confuse\n\t * with the last range added to the selection). Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/range~Range|null}\n\t */\n\tpublic getLastRange(): Range | null {\n\t\treturn this._selection.getLastRange();\n\t}\n\n\t/**\n\t * Returns copy of the first position in the selection. First position is the position that\n\t * {@link module:engine/view/position~Position#isBefore is before} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/position~Position|null}\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\treturn this._selection.getFirstPosition();\n\t}\n\n\t/**\n\t * Returns copy of the last position in the selection. Last position is the position that\n\t * {@link module:engine/view/position~Position#isAfter is after} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t *\n\t * @returns {module:engine/view/position~Position|null}\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\treturn this._selection.getLastPosition();\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/view/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t *\n\t * @returns {module:engine/view/element~Element|null}\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\treturn this._selection.getSelectedElement();\n\t}\n\n\t/**\n\t * Checks whether, this selection is equal to given selection. Selections are equal if they have same directions,\n\t * same number of ranges and all ranges from one selection equal to a range from other selection.\n\t *\n\t * @param {module:engine/view/selection~Selection|module:engine/view/documentselection~DocumentSelection} otherSelection\n\t * Selection to compare with.\n\t * @returns {Boolean} `true` if selections are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherSelection: Selection | DocumentSelection ): boolean {\n\t\treturn this._selection.isEqual( otherSelection );\n\t}\n\n\t/**\n\t * Checks whether this selection is similar to given selection. Selections are similar if they have same directions, same\n\t * number of ranges, and all {@link module:engine/view/range~Range#getTrimmed trimmed} ranges from one selection are\n\t * equal to any trimmed range from other selection.\n\t *\n\t * @param {module:engine/view/selection~Selection|module:engine/view/documentselection~DocumentSelection} otherSelection\n\t * Selection to compare with.\n\t * @returns {Boolean} `true` if selections are similar, `false` otherwise.\n\t */\n\tpublic isSimilar( otherSelection: Selection | DocumentSelection ): boolean {\n\t\treturn this._selection.isSimilar( otherSelection );\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/view/selection~Selectable selectable}.\n\t *\n\t *\t\t// Sets selection to the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tdocumentSelection._setTo( range );\n\t *\n\t *\t\t// Sets selection to given ranges.\n\t * \t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( start2, end2 ) ];\n\t *\t\tdocumentSelection._setTo( range );\n\t *\n\t *\t\t// Sets selection to the other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tdocumentSelection._setTo( otherSelection );\n\t *\n\t * \t\t// Sets collapsed selection at the given position.\n\t *\t\tconst position = writer.createPositionAt( root, offset );\n\t *\t\tdocumentSelection._setTo( position );\n\t *\n\t * \t\t// Sets collapsed selection at the position of given item and offset.\n\t *\t\tdocumentSelection._setTo( paragraph, offset );\n\t *\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t *\t\tdocumentSelection._setTo( paragraph, 'in' );\n\t *\n\t * Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t *\t\tdocumentSelection._setTo( paragraph, 'on' );\n\t *\n\t * \t\t// Clears selection. Removes all ranges.\n\t *\t\tdocumentSelection._setTo( null );\n\t *\n\t * `Selection#_setTo()` method allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Sets selection as backward.\n\t *\t\tdocumentSelection._setTo( range, { backward: true } );\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to des cribe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t *\t\t// Creates fake selection with label.\n\t *\t\tdocumentSelection._setTo( range, { fake: true, label: 'foo' } );\n\t *\n\t * @protected\n\t * @fires change\n\t * @param {module:engine/view/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t */\n\tpublic _setTo( ...args: Parameters< Selection[ 'setTo' ]> ): void {\n\t\tthis._selection.setTo( ...args );\n\t}\n\n\t/**\n\t * Moves {@link #focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as {@link module:engine/view/view~View#createPositionAt view.createPositionAt()}\n\t * parameters.\n\t *\n\t * @protected\n\t * @fires change\n\t * @param {module:engine/view/item~Item|module:engine/view/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic _setFocus( itemOrPosition: Item | Position, offset?: number | 'before' | 'end' | 'after' ): void {\n\t\tthis._selection.setFocus( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Fired whenever selection ranges are changed through {@link ~DocumentSelection Selection API}.\n\t *\n\t * @event change\n\t */\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\tdocSelection.is( 'selection' ); // -> true\n *\t\tdocSelection.is( 'documentSelection' ); // -> true\n *\t\tdocSelection.is( 'view:selection' ); // -> true\n *\t\tdocSelection.is( 'view:documentSelection' ); // -> true\n *\n *\t\tdocSelection.is( 'model:documentSelection' ); // -> false\n *\t\tdocSelection.is( 'element' ); // -> false\n *\t\tdocSelection.is( 'node' ); // -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nDocumentSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' ||\n\t\ttype == 'documentSelection' ||\n\t\ttype == 'view:selection' ||\n\t\ttype == 'view:documentSelection';\n};\n\nexport type ViewDocumentSelectionChangeEvent = ViewSelectionChangeEvent;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/bubblingeventinfo\n */\n\nimport { EventInfo } from '@ckeditor/ckeditor5-utils';\nimport type Document from '../document';\nimport type Node from '../node';\nimport type Range from '../range';\n\n/**\n * The event object passed to bubbling event callbacks. It is used to provide information about the event as well as a tool to\n * manipulate it.\n *\n * @extends module:utils/eventinfo~EventInfo\n */\nexport default class BubblingEventInfo<TName extends string = string, TReturn = unknown> extends EventInfo<TName, TReturn> {\n\tpublic readonly startRange: Range;\n\n\t/** @internal */\n\tprivate _eventPhase: 'none' | 'capturing' | 'atTarget' | 'bubbling';\n\n\t/** @internal */\n\tprivate _currentTarget: Document | Node | null;\n\n\t/**\n\t * @param {Object} source The emitter.\n\t * @param {String} name The event name.\n\t * @param {module:engine/view/range~Range} startRange The view range that the bubbling should start from.\n\t */\n\tconstructor( source: object, name: TName, startRange: Range ) {\n\t\tsuper( source, name );\n\n\t\t/**\n\t\t * The view range that the bubbling should start from.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/range~Range}\n\t\t */\n\t\tthis.startRange = startRange;\n\n\t\t/**\n\t\t * The current event phase.\n\t\t *\n\t\t * @protected\n\t\t * @member {'none'|'capturing'|'atTarget'|'bubbling'}\n\t\t */\n\t\tthis._eventPhase = 'none';\n\n\t\t/**\n\t\t * The current bubbling target.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:engine/view/document~Document|module:engine/view/node~Node|null}\n\t\t */\n\t\tthis._currentTarget = null;\n\t}\n\n\t/**\n\t * The current event phase.\n\t *\n\t * @readonly\n\t * @member {'none'|'capturing'|'atTarget'|'bubbling'}\n\t */\n\tpublic get eventPhase(): 'none' | 'capturing' | 'atTarget' | 'bubbling' {\n\t\treturn this._eventPhase;\n\t}\n\n\t/**\n\t * The current bubbling target.\n\t *\n\t * @readonly\n\t * @member {module:engine/view/document~Document|module:engine/view/node~Node|null}\n\t */\n\tpublic get currentTarget(): Document | Node | null {\n\t\treturn this._currentTarget;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/bubblingemittermixin\n */\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tEventInfo,\n\ttoArray,\n\ttype ArrayOrItem,\n\ttype Emitter,\n\ttype GetEventInfo,\n\ttype GetNameOrEventInfo,\n\ttype BaseEvent,\n\ttype CallbackOptions\n} from '@ckeditor/ckeditor5-utils';\n\nimport BubblingEventInfo from './bubblingeventinfo';\nimport type Document from '../document';\nimport type Node from '../node';\nimport type Range from '../range';\nimport type Element from '../element';\nimport type DocumentSelection from '../documentselection';\n\nconst contextsSymbol = Symbol( 'bubbling contexts' );\n\n/**\n * Bubbling emitter mixin for the view document as described in the\n * {@link ~BubblingEmitter} interface.\n *\n * @mixin BubblingEmitterMixin\n * @implements module:engine/view/observer/bubblingemittermixin~BubblingEmitter\n */\nexport default function BubblingEmitterMixin<Base extends abstract new( ...args: Array<any> ) => Emitter>(\n\tbase: Base\n): {\n\tnew( ...args: ConstructorParameters<Base> ): InstanceType<Base> & BubblingEmitter;\n\tprototype: InstanceType<Base> & BubblingEmitter;\n} {\n\tabstract class Mixin extends base implements BubblingEmitter {\n\t\tpublic abstract get selection(): DocumentSelection;\n\n\t\tpublic override fire<TEvent extends BaseEvent>(\n\t\t\teventOrInfo: GetNameOrEventInfo<TEvent>,\n\t\t\t...eventArgs: TEvent[ 'args' ]\n\t\t): GetEventInfo<TEvent>[ 'return' ] {\n\t\t\ttry {\n\t\t\t\tconst eventInfo = eventOrInfo instanceof EventInfo ? eventOrInfo : new EventInfo( this, eventOrInfo );\n\t\t\t\tconst eventContexts = getBubblingContexts( this );\n\n\t\t\t\tif ( !eventContexts.size ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tupdateEventInfo( eventInfo, 'capturing', this );\n\n\t\t\t\t// The capture phase of the event.\n\t\t\t\tif ( fireListenerFor( eventContexts, '$capture', eventInfo, ...eventArgs ) ) {\n\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t}\n\n\t\t\t\tconst startRange = ( eventInfo as BubblingEventInfo ).startRange || this.selection.getFirstRange();\n\t\t\t\tconst selectedElement = startRange ? startRange.getContainedElement() : null;\n\t\t\t\tconst isCustomContext = selectedElement ? Boolean( getCustomContext( eventContexts, selectedElement ) ) : false;\n\n\t\t\t\tlet node: Node | null = selectedElement || getDeeperRangeParent( startRange );\n\n\t\t\t\tupdateEventInfo( eventInfo, 'atTarget', node );\n\n\t\t\t\t// For the not yet bubbling event trigger for $text node if selection can be there and it's not a custom context selected.\n\t\t\t\tif ( !isCustomContext ) {\n\t\t\t\t\tif ( fireListenerFor( eventContexts, '$text', eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t}\n\n\t\t\t\t\tupdateEventInfo( eventInfo, 'bubbling', node );\n\t\t\t\t}\n\n\t\t\t\twhile ( node ) {\n\t\t\t\t\t// Root node handling.\n\t\t\t\t\tif ( node.is( 'rootElement' ) ) {\n\t\t\t\t\t\tif ( fireListenerFor( eventContexts, '$root', eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Element node handling.\n\t\t\t\t\telse if ( node.is( 'element' ) ) {\n\t\t\t\t\t\tif ( fireListenerFor( eventContexts, node.name, eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Check custom contexts (i.e., a widget).\n\t\t\t\t\tif ( fireListenerFor( eventContexts, node, eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t}\n\n\t\t\t\t\tnode = node.parent as Node;\n\n\t\t\t\t\tupdateEventInfo( eventInfo, 'bubbling', node );\n\t\t\t\t}\n\n\t\t\t\tupdateEventInfo( eventInfo, 'bubbling', this );\n\n\t\t\t\t// Document context.\n\t\t\t\tfireListenerFor( eventContexts, '$document', eventInfo, ...eventArgs );\n\n\t\t\t\treturn eventInfo.return;\n\t\t\t} catch ( err: any ) {\n\t\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t\t/* istanbul ignore next */\n\t\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t\t}\n\t\t}\n\n\t\tpublic _addEventListener(\n\t\t\tthis: Document,\n\t\t\tevent: string,\n\t\t\tcallback: ( ev: EventInfo, ...args: Array<any> ) => void,\n\t\t\toptions: BubblingCallbackOptions\n\t\t) {\n\t\t\tconst contexts = toArray( options.context || '$document' );\n\t\t\tconst eventContexts = getBubblingContexts( this );\n\n\t\t\tfor ( const context of contexts ) {\n\t\t\t\tlet emitter = eventContexts.get( context );\n\n\t\t\t\tif ( !emitter ) {\n\t\t\t\t\temitter = new ( EmitterMixin() )();\n\t\t\t\t\teventContexts.set( context, emitter! );\n\t\t\t\t}\n\n\t\t\t\tthis.listenTo( emitter!, event, callback, options );\n\t\t\t}\n\t\t}\n\n\t\tpublic _removeEventListener( this: Document, event: string, callback: Function ): void {\n\t\t\tconst eventContexts = getBubblingContexts( this );\n\n\t\t\tfor ( const emitter of eventContexts.values() ) {\n\t\t\t\tthis.stopListening( emitter, event, callback );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn Mixin as any;\n}\n\n// Backward compatibility with `mix`.\n{\n\tconst mixin = ( BubblingEmitterMixin as any )( Object );\n\n\t[ 'fire', '_addEventListener', '_removeEventListener' ].forEach( key => {\n\t\t( BubblingEmitterMixin as any )[ key ] = mixin.prototype[ key ];\n\t} );\n}\n\n// Update the event info bubbling fields.\n//\n// @param {module:utils/eventinfo~EventInfo} eventInfo The event info object to update.\n// @param {'none'|'capturing'|'atTarget'|'bubbling'} eventPhase The current event phase.\n// @param {module:engine/view/document~Document|module:engine/view/node~Node} currentTarget The current bubbling target.\nfunction updateEventInfo(\n\teventInfo: EventInfo,\n\teventPhase: BubblingEventInfo[ '_eventPhase' ],\n\tcurrentTarget: unknown\n) {\n\tif ( eventInfo instanceof BubblingEventInfo ) {\n\t\t( eventInfo as any )._eventPhase = eventPhase;\n\t\t( eventInfo as any )._currentTarget = currentTarget;\n\t}\n}\n\n// Fires the listener for the specified context. Returns `true` if event was stopped.\n//\n// @private\n// @param {Map.<String|Function, module:utils/emittermixin~Emitter>} eventContexts\n// @param {String|module:engine/view/node~Node} context\n// @param {module:utils/eventinfo~EventInfo} eventInfo The `EventInfo` object.\n// @param {...*} [eventArgs] Additional arguments to be passed to the callbacks.\n// @returns {Boolean} True if event stop was called.\nfunction fireListenerFor(\n\teventContexts: BubblingEventContexts,\n\tcontext: string | Node,\n\teventInfo: EventInfo,\n\t...eventArgs: Array<unknown>\n) {\n\tconst emitter = typeof context == 'string' ? eventContexts.get( context ) : getCustomContext( eventContexts, context );\n\n\tif ( !emitter ) {\n\t\treturn false;\n\t}\n\n\temitter.fire( eventInfo, ...eventArgs );\n\n\treturn eventInfo.stop.called;\n}\n\n// Returns an emitter for a specified view node.\n//\n// @private\n// @param {Map.<String|Function, module:utils/emittermixin~Emitter>} eventContexts\n// @param {module:engine/view/node~Node} node\n// @returns {module:utils/emittermixin~Emitter|null}\nfunction getCustomContext( eventContexts: BubblingEventContexts, node: Node ): Emitter | null {\n\tfor ( const [ context, emitter ] of eventContexts ) {\n\t\tif ( typeof context == 'function' && context( node ) ) {\n\t\t\treturn emitter;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n// Returns bubbling contexts map for the source (emitter).\nfunction getBubblingContexts( source: { [ x: string ]: any; [ contextsSymbol ]?: BubblingEventContexts } ) {\n\tif ( !source[ contextsSymbol ] ) {\n\t\tsource[ contextsSymbol ] = new Map();\n\t}\n\n\treturn source[ contextsSymbol ];\n}\n\n// Returns the deeper parent element for the range.\nfunction getDeeperRangeParent( range: Range ): Node | null {\n\tif ( !range ) {\n\t\treturn null;\n\t}\n\n\tconst startParent = range.start.parent as Element;\n\tconst endParent = range.end.parent as Element;\n\n\tconst startPath = startParent.getPath();\n\tconst endPath = endParent.getPath();\n\n\treturn startPath.length > endPath.length ? startParent : endParent;\n}\n\n/**\n * Bubbling emitter for the view document.\n *\n * Bubbling emitter is triggering events in the context of specified {@link module:engine/view/element~Element view element} name,\n * predefined `'$text'`, `'$root'`, `'$document'` and `'$capture'` contexts, and context matchers provided as a function.\n *\n * Before bubbling starts, listeners for `'$capture'` context are triggered. Then the bubbling starts from the deeper selection\n * position (by firing event on the `'$text'` context) and propagates the view document tree up to the `'$root'` and finally\n * the listeners at `'$document'` context are fired (this is the default context).\n *\n * Examples:\n *\n *\t\t// Listeners registered in the context of the view element names:\n *\t\tthis.listenTo( viewDocument, 'enter', ( evt, data ) => {\n *\t\t\t// ...\n *\t\t}, { context: 'blockquote' } );\n *\n *\t\tthis.listenTo( viewDocument, 'enter', ( evt, data ) => {\n *\t\t\t// ...\n *\t\t}, { context: 'li' } );\n *\n *\t\t// Listeners registered in the context of the '$text' and '$root' nodes.\n *\t\tthis.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n *\t\t\t// ...\n *\t\t}, { context: '$text', priority: 'high' } );\n *\n *\t\tthis.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n *\t\t\t// ...\n *\t\t}, { context: '$root' } );\n *\n *\t\t// Listeners registered in the context of custom callback function.\n *\t\tthis.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n *\t\t\t// ...\n *\t\t}, { context: isWidget } );\n *\n *\t\tthis.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n *\t\t\t// ...\n *\t\t}, { context: isWidget, priority: 'high' } );\n *\n * Example flow for selection in text:\n *\n *\t\t<blockquote><p>Foo[]bar</p></blockquote>\n *\n * Fired events on contexts:\n * 1. `'$capture'`\n * 2. `'$text'`\n * 3. `'p'`\n * 4. `'blockquote'`\n * 5. `'$root'`\n * 6. `'$document'`\n *\n * Example flow for selection on element (i.e., Widget):\n *\n *\t\t<blockquote><p>Foo[<widget/>]bar</p></blockquote>\n *\n * Fired events on contexts:\n * 1. `'$capture'`\n * 2. *widget* (custom matcher)\n * 3. `'p'`\n * 4. `'blockquote'`\n * 5. `'$root'`\n * 6. `'$document'`\n *\n * There could be multiple listeners registered for the same context and at different priority levels:\n *\n *\t\t<p>Foo[]bar</p>\n *\n * 1. `'$capture'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 2. `'$text'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 3. `'p'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 4. `'$root'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 5. `'$document'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n *\n * @interface BubblingEmitter\n * @extends module:utils/emittermixin~Emitter\n */\n\ntype BubblingEventContexts = Map<string | BubblingEventContextFunction, Emitter>;\n\nexport type BubblingEventContextFunction = ( node: Node ) => boolean;\n\nexport type BubblingEvent<TEvent extends BaseEvent> = TEvent & {\n\teventInfo: BubblingEventInfo<TEvent[ 'name' ], ( TEvent extends { return: infer TReturn } ? TReturn : unknown )>;\n\tcallbackOptions: BubblingCallbackOptions;\n};\n\nexport type BubblingCallbackOptions = CallbackOptions & {\n\tcontext?: ArrayOrItem<string | BubblingEventContextFunction>;\n};\n\nexport type BubblingEmitter = Emitter;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/document\n */\n\nimport DocumentSelection from './documentselection';\nimport BubblingEmitterMixin from './observer/bubblingemittermixin';\n\nimport { Collection, ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type { StylesProcessor } from './stylesmap';\nimport type RootEditableElement from './rooteditableelement';\nimport type DowncastWriter from './downcastwriter';\n\n// @if CK_DEBUG_ENGINE // const { logDocument } = require( '../dev-utils/utils' );\n\n/**\n * Document class creates an abstract layer over the content editable area, contains a tree of view elements and\n * {@link module:engine/view/documentselection~DocumentSelection view selection} associated with this document.\n *\n * @mixes module:engine/view/observer/bubblingemittermixin~BubblingEmitterMixin\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class Document extends BubblingEmitterMixin( ObservableMixin() ) {\n\tpublic readonly selection: DocumentSelection;\n\tpublic readonly roots: Collection<RootEditableElement>;\n\tpublic readonly stylesProcessor: StylesProcessor;\n\n\tdeclare public isReadOnly: boolean;\n\tdeclare public isFocused: boolean;\n\tdeclare public _isFocusChanging: boolean;\n\tdeclare public isSelecting: boolean;\n\tdeclare public isComposing: boolean;\n\n\tprivate readonly _postFixers: Set<ViewDocumentPostFixer>;\n\n\t/**\n\t * Creates a Document instance.\n\t *\n\t * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor The styles processor instance.\n\t */\n\tconstructor( stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Selection done on this document.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/documentselection~DocumentSelection} module:engine/view/document~Document#selection\n\t\t */\n\t\tthis.selection = new DocumentSelection();\n\n\t\t/**\n\t\t * Roots of the view tree. Collection of the {@link module:engine/view/element~Element view elements}.\n\t\t *\n\t\t * View roots are created as a result of binding between {@link module:engine/view/document~Document#roots} and\n\t\t * {@link module:engine/model/document~Document#roots} and this is handled by\n\t\t * {@link module:engine/controller/editingcontroller~EditingController}, so to create view root we need to create\n\t\t * model root using {@link module:engine/model/document~Document#createRoot}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/collection~Collection} module:engine/view/document~Document#roots\n\t\t */\n\t\tthis.roots = new Collection( { idProperty: 'rootName' } );\n\n\t\t/**\n\t\t * The styles processor instance used by this document when normalizing styles.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/stylesmap~StylesProcessor}\n\t\t */\n\t\tthis.stylesProcessor = stylesProcessor;\n\n\t\t/**\n\t\t * Defines whether document is in read-only mode.\n\t\t *\n\t\t * When document is read-ony then all roots are read-only as well and caret placed inside this root is hidden.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isReadOnly\n\t\t */\n\t\tthis.set( 'isReadOnly', false );\n\n\t\t/**\n\t\t * True if document is focused.\n\t\t *\n\t\t * This property is updated by the {@link module:engine/view/observer/focusobserver~FocusObserver}.\n\t\t * If the {@link module:engine/view/observer/focusobserver~FocusObserver} is disabled this property will not change.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} module:engine/view/document~Document#isFocused\n\t\t */\n\t\tthis.set( 'isFocused', false );\n\n\t\t/**\n\t\t * Set to `true` if the document is in the process of setting the focus.\n\t\t *\n\t\t * To be precise, there are two browser events that we care about: `focus` and `selectionchange`.\n\t\t *\n\t\t * Different browsers handle them differently. Chromium sends the `focus` event before the\n\t\t * `selectionchange` event, which leads to rendering with the old selection state.\n\t\t *\n\t\t * The flag is used to prevent rendering when setting the focus is in progress\n\t\t * and we are waiting for the new value.\n\t\t *\n\t\t * @internal\n\t\t * @observable\n\t\t * @member {Boolean} module:engine/view/document~Document#_isFocusChanging\n\t\t */\n\t\tthis.set( '_isFocusChanging', false );\n\n\t\t/** @\n\t\t * `true` while the user is making a selection in the document (e.g. holding the mouse button and moving the cursor).\n\t\t * When they stop selecting, the property goes back to `false`.\n\t\t *\n\t\t * This property is updated by the {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} module:engine/view/document~Document#isSelecting\n\t\t */\n\t\tthis.set( 'isSelecting', false );\n\n\t\t/**\n\t\t * True if composition is in progress inside the document.\n\t\t *\n\t\t * This property is updated by the {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n\t\t * If the {@link module:engine/view/observer/compositionobserver~CompositionObserver} is disabled this property will not change.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} module:engine/view/document~Document#isComposing\n\t\t */\n\t\tthis.set( 'isComposing', false );\n\n\t\t/**\n\t\t * Post-fixer callbacks registered to the view document.\n\t\t *\n\t\t * @private\n\t\t * @member {Set}\n\t\t */\n\t\tthis._postFixers = new Set();\n\t}\n\n\t/**\n\t * Gets a {@link module:engine/view/document~Document#roots view root element} with the specified name. If the name is not\n\t * specific \"main\" root is returned.\n\t *\n\t * @param {String} [name='main'] Name of the root.\n\t * @returns {module:engine/view/rooteditableelement~RootEditableElement|null} The view root element with the specified name\n\t * or null when there is no root of given name.\n\t */\n\tpublic getRoot( name: string = 'main' ): RootEditableElement | null {\n\t\treturn this.roots.get( name );\n\t}\n\n\t/**\n\t * Allows registering post-fixer callbacks. A post-fixers mechanism allows to update the view tree just before it is rendered\n\t * to the DOM.\n\t *\n\t * Post-fixers are executed right after all changes from the outermost change block were applied but\n\t * before the {@link module:engine/view/view~View#event:render render event} is fired. If a post-fixer callback made\n\t * a change, it should return `true`. When this happens, all post-fixers are fired again to check if something else should\n\t * not be fixed in the new document tree state.\n\t *\n\t * View post-fixers are useful when you want to apply some fixes whenever the view structure changes. Keep in mind that\n\t * changes executed in a view post-fixer should not break model-view mapping.\n\t *\n\t * The types of changes which should be safe:\n\t *\n\t * * adding or removing attribute from elements,\n\t * * changes inside of {@link module:engine/view/uielement~UIElement UI elements},\n\t * * {@link module:engine/controller/editingcontroller~EditingController#reconvertItem marking some of the model elements to be\n\t * re-converted}.\n\t *\n\t * Try to avoid changes which touch view structure:\n\t *\n\t * * you should not add or remove nor wrap or unwrap any view elements,\n\t * * you should not change the editor data model in a view post-fixer.\n\t *\n\t * As a parameter, a post-fixer callback receives a {@link module:engine/view/downcastwriter~DowncastWriter downcast writer}.\n\t *\n\t * Typically, a post-fixer will look like this:\n\t *\n\t *\t\teditor.editing.view.document.registerPostFixer( writer => {\n\t *\t\t\tif ( checkSomeCondition() ) {\n\t *\t\t\t\twriter.doSomething();\n\t *\n\t *\t\t\t\t// Let other post-fixers know that something changed.\n\t *\t\t\t\treturn true;\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * Note that nothing happens right after you register a post-fixer (e.g. execute such a code in the console).\n\t * That is because adding a post-fixer does not execute it.\n\t * The post-fixer will be executed as soon as any change in the document needs to cause its rendering.\n\t * If you want to re-render the editor's view after registering the post-fixer then you should do it manually by calling\n\t * {@link module:engine/view/view~View#forceRender `view.forceRender()`}.\n\t *\n\t * If you need to register a callback which is executed when DOM elements are already updated,\n\t * use {@link module:engine/view/view~View#event:render render event}.\n\t *\n\t * @param {Function} postFixer\n\t */\n\tpublic registerPostFixer( postFixer: ViewDocumentPostFixer ): void {\n\t\tthis._postFixers.add( postFixer );\n\t}\n\n\t/**\n\t * Destroys this instance. Makes sure that all observers are destroyed and listeners removed.\n\t */\n\tpublic destroy(): void {\n\t\tthis.roots.map( root => root.destroy() );\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Performs post-fixer loops. Executes post-fixer callbacks as long as none of them has done any changes to the model.\n\t *\n\t * @protected\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n\t */\n\tpublic _callPostFixers( writer: DowncastWriter ): void {\n\t\tlet wasFixed = false;\n\n\t\tdo {\n\t\t\tfor ( const callback of this._postFixers ) {\n\t\t\t\twasFixed = callback( writer );\n\n\t\t\t\tif ( wasFixed ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} while ( wasFixed );\n\t}\n\n\t/**\n\t * Event fired whenever document content layout changes. It is fired whenever content is\n\t * {@link module:engine/view/view~View#event:render rendered}, but should be also fired by observers in case of\n\t * other actions which may change layout, for instance when image loads.\n\t *\n\t * @event layoutChanged\n\t */\n\n\t// @if CK_DEBUG_ENGINE // log( version ) {\n\t// @if CK_DEBUG_ENGINE //\tlogDocument( this, version );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\nexport type ViewDocumentPostFixer = ( writer: DowncastWriter ) => boolean;\n\n/**\n * Enum representing type of the change.\n *\n * Possible values:\n *\n * * `children` - for child list changes,\n * * `attributes` - for element attributes changes,\n * * `text` - for text nodes changes.\n *\n * @typedef {String} module:engine/view/document~ChangeType\n */\nexport type ChangeType = 'children' | 'attributes' | 'text';\n\nexport type ViewDocumentLayoutChangedEvent = {\n\tname: 'layoutChanged';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/attributeelement\n */\n\nimport Element from './element';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type DocumentFragment from './documentfragment';\n\n// Default attribute priority.\nconst DEFAULT_PRIORITY = 10;\n\n/**\n * Attribute elements are used to represent formatting elements in the view (think – `<b>`, `<span style=\"font-size: 2em\">`, etc.).\n * Most often they are created when downcasting model text attributes.\n *\n * Editing engine does not define a fixed HTML DTD. This is why a feature developer needs to choose between various\n * types (container element, {@link module:engine/view/attributeelement~AttributeElement attribute element},\n * {@link module:engine/view/emptyelement~EmptyElement empty element}, etc) when developing a feature.\n *\n * To create a new attribute element instance use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement `DowncastWriter#createAttributeElement()`} method.\n *\n * @extends module:engine/view/element~Element\n */\nexport default class AttributeElement extends Element {\n\tpublic static readonly DEFAULT_PRIORITY: number = DEFAULT_PRIORITY;\n\n\tpublic override getFillerOffset: () => number | null;\n\tprivate readonly _priority: number;\n\tprivate readonly _id: string | number | null;\n\tprivate readonly _clonesGroup: Set<AttributeElement> | null;\n\n\t/**\n\t * Creates an attribute element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createAttributeElement\n\t * @see module:engine/view/element~Element\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this element belongs.\n\t * @param {String} name Node name.\n\t * @param {Object|Iterable} [attrs] Collection of attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into created element.\n\t */\n\tconstructor( ...args: ConstructorParameters<typeof Element> ) {\n\t\tsuper( ...args );\n\n\t\t/**\n\t\t * Returns block {@link module:engine/view/filler filler} offset or `null` if block filler is not needed.\n\t\t *\n\t\t * @method #getFillerOffset\n\t\t * @returns {Number|null} Block filler offset or `null` if block filler is not needed.\n\t\t */\n\t\tthis.getFillerOffset = getFillerOffset;\n\n\t\t/**\n\t\t * Element priority. Decides in what order elements are wrapped by {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t\t *\n\t\t * @protected\n\t\t * @member {Number}\n\t\t */\n\t\tthis._priority = DEFAULT_PRIORITY;\n\n\t\t/**\n\t\t * Element identifier. If set, it is used by {@link module:engine/view/element~Element#isSimilar},\n\t\t * and then two elements are considered similar if, and only if they have the same `_id`.\n\t\t *\n\t\t * @protected\n\t\t * @member {String|Number}\n\t\t */\n\t\tthis._id = null;\n\n\t\t/**\n\t\t * Keeps all the attribute elements that have the same {@link module:engine/view/attributeelement~AttributeElement#id ids}\n\t\t * and still exist in the view tree.\n\t\t *\n\t\t * This property is managed by {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t\t *\n\t\t * @protected\n\t\t * @member {Set.<module:engine/view/attributeelement~AttributeElement>|null}\n\t\t */\n\t\tthis._clonesGroup = null;\n\t}\n\n\t/**\n\t * Element priority. Decides in what order elements are wrapped by {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get priority(): number {\n\t\treturn this._priority;\n\t}\n\n\t/**\n\t * Element identifier. If set, it is used by {@link module:engine/view/element~Element#isSimilar},\n\t * and then two elements are considered similar if, and only if they have the same `id`.\n\t *\n\t * @readonly\n\t * @type {String|Number}\n\t */\n\tpublic get id(): string | number | null {\n\t\treturn this._id;\n\t}\n\n\t/**\n\t * Returns all {@link module:engine/view/attributeelement~AttributeElement attribute elements} that has the\n\t * same {@link module:engine/view/attributeelement~AttributeElement#id id} and are in the view tree (were not removed).\n\t *\n\t * Note: If this element has been removed from the tree, returned set will not include it.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError attribute-element-get-elements-with-same-id-no-id}\n\t * if this element has no `id`.\n\t *\n\t * @returns {Set.<module:engine/view/attributeelement~AttributeElement>} Set containing all the attribute elements\n\t * with the same `id` that were added and not removed from the view tree.\n\t */\n\tpublic getElementsWithSameId(): Set<AttributeElement> {\n\t\tif ( this.id === null ) {\n\t\t\t/**\n\t\t\t * Cannot get elements with the same id for an attribute element without id.\n\t\t\t *\n\t\t\t * @error attribute-element-get-elements-with-same-id-no-id\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'attribute-element-get-elements-with-same-id-no-id',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\treturn new Set( this._clonesGroup );\n\t}\n\n\t/**\n\t * Checks if this element is similar to other element.\n\t *\n\t * If none of elements has set {@link module:engine/view/attributeelement~AttributeElement#id}, then both elements\n\t * should have the same name, attributes and priority to be considered as similar. Two similar elements can contain\n\t * different set of children nodes.\n\t *\n\t * If at least one element has {@link module:engine/view/attributeelement~AttributeElement#id} set, then both\n\t * elements have to have the same {@link module:engine/view/attributeelement~AttributeElement#id} value to be\n\t * considered similar.\n\t *\n\t * Similarity is important for {@link module:engine/view/downcastwriter~DowncastWriter}. For example:\n\t *\n\t * * two following similar elements can be merged together into one, longer element,\n\t * * {@link module:engine/view/downcastwriter~DowncastWriter#unwrap} checks similarity of passed element and processed element to\n\t * decide whether processed element should be unwrapped,\n\t * * etc.\n\t *\n\t * @param {module:engine/view/element~Element} otherElement\n\t * @returns {Boolean}\n\t */\n\tpublic override isSimilar( otherElement: Element ): boolean {\n\t\t// If any element has an `id` set, just compare the ids.\n\t\tif ( this.id !== null || ( otherElement as any ).id !== null ) {\n\t\t\treturn this.id === ( otherElement as any ).id;\n\t\t}\n\n\t\treturn super.isSimilar( otherElement ) && this.priority == ( otherElement as any ).priority;\n\t}\n\n\t/**\n\t * Clones provided element with priority.\n\t *\n\t * @protected\n\t * @param {Boolean} deep If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any children.\n\t * @returns {module:engine/view/attributeelement~AttributeElement} Clone of this element.\n\t */\n\tpublic override _clone( deep: boolean = false ): Element {\n\t\tconst cloned = super._clone( deep );\n\n\t\t// Clone priority too.\n\t\t( cloned as any )._priority = this._priority;\n\n\t\t// And id too.\n\t\t( cloned as any )._id = this._id;\n\n\t\treturn cloned;\n\t}\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tattributeElement.is( 'attributeElement' ); // -> true\n *\t\tattributeElement.is( 'element' ); // -> true\n *\t\tattributeElement.is( 'node' ); // -> true\n *\t\tattributeElement.is( 'view:attributeElement' ); // -> true\n *\t\tattributeElement.is( 'view:element' ); // -> true\n *\t\tattributeElement.is( 'view:node' ); // -> true\n *\n *\t\tattributeElement.is( 'model:element' ); // -> false\n *\t\tattributeElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is an attribute element, you can also check its\n * {@link module:engine/view/attributeelement~AttributeElement#name name}:\n *\n *\t\tattributeElement.is( 'element', 'b' ); // -> true if this is a bold element\n *\t\tattributeElement.is( 'attributeElement', 'b' ); // -> same as above\n *\t\ttext.is( 'element', 'b' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nAttributeElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'attributeElement' || type === 'view:attributeElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'attributeElement' || type === 'view:attributeElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n// Returns block {@link module:engine/view/filler~Filler filler} offset or `null` if block filler is not needed.\n//\n// @returns {Number|null} Block filler offset or `null` if block filler is not needed.\nfunction getFillerOffset( this: AttributeElement ): number | null {\n\t// <b>foo</b> does not need filler.\n\tif ( nonUiChildrenCount( this ) ) {\n\t\treturn null;\n\t}\n\n\tlet element = this.parent;\n\n\t// <p><b></b></p> needs filler -> <p><b><br></b></p>\n\twhile ( element && element.is( 'attributeElement' ) ) {\n\t\tif ( nonUiChildrenCount( element ) > 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\telement = element.parent;\n\t}\n\n\tif ( !element || nonUiChildrenCount( element ) > 1 ) {\n\t\treturn null;\n\t}\n\n\t// Render block filler at the end of element (after all ui elements).\n\treturn this.childCount;\n}\n\n// Returns total count of children that are not {@link module:engine/view/uielement~UIElement UIElements}.\n//\n// @param {module:engine/view/element~Element} element\n// @returns {Number}\nfunction nonUiChildrenCount( element: Element | DocumentFragment ): number {\n\treturn Array.from( element.getChildren() ).filter( element => !element.is( 'uiElement' ) ).length;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/emptyelement\n */\n\nimport Element, { type ElementAttributes } from './element';\nimport Node from './node';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from './document';\nimport type Item from './item';\n\n/**\n * Empty element class. It is used to represent elements that cannot contain any child nodes (for example `<img>` elements).\n *\n * To create a new empty element use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createEmptyElement `downcastWriter#createEmptyElement()`} method.\n *\n * @extends module:engine/view/element~Element\n */\nexport default class EmptyElement extends Element {\n\tpublic override getFillerOffset: () => null;\n\n\t/**\n\t * Creates new instance of EmptyElement.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-emptyelement-cannot-add` when third parameter is passed,\n\t * to inform that usage of EmptyElement is incorrect (adding child nodes to EmptyElement is forbidden).\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createEmptyElement\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this element belongs.\n\t * @param {String} name Node name.\n\t * @param {Object|Iterable} [attrs] Collection of attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document, name, attributes, children );\n\n\t\t/**\n\t\t * Returns `null` because filler is not needed for EmptyElements.\n\t\t *\n\t\t * @method #getFillerOffset\n\t\t * @returns {null} Always returns null.\n\t\t */\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n\n\t/**\n\t * Overrides {@link module:engine/view/element~Element#_insertChild} method.\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-emptyelement-cannot-add` to prevent\n\t * adding any child nodes to EmptyElement.\n\t *\n\t * @protected\n\t */\n\tpublic override _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tif ( items && ( items instanceof Node || Array.from( items as Iterable<Item> ).length > 0 ) ) {\n\t\t\t/**\n\t\t\t * Cannot add children to {@link module:engine/view/emptyelement~EmptyElement}.\n\t\t\t *\n\t\t\t * @error view-emptyelement-cannot-add\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-emptyelement-cannot-add',\n\t\t\t\t[ this, items ]\n\t\t\t);\n\t\t}\n\n\t\treturn 0;\n\t}\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\temptyElement.is( 'emptyElement' ); // -> true\n *\t\temptyElement.is( 'element' ); // -> true\n *\t\temptyElement.is( 'node' ); // -> true\n *\t\temptyElement.is( 'view:emptyElement' ); // -> true\n *\t\temptyElement.is( 'view:element' ); // -> true\n *\t\temptyElement.is( 'view:node' ); // -> true\n *\n *\t\temptyElement.is( 'model:element' ); // -> false\n *\t\temptyElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is an empty element, you can also check its\n * {@link module:engine/view/emptyelement~EmptyElement#name name}:\n *\n *\t\temptyElement.is( 'element', 'img' ); // -> true if this is a img element\n *\t\temptyElement.is( 'emptyElement', 'img' ); // -> same as above\n *\t\ttext.is( 'element', 'img' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nEmptyElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'emptyElement' || type === 'view:emptyElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'emptyElement' || type === 'view:emptyElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n// Returns `null` because block filler is not needed for EmptyElements.\n//\n// @returns {null}\nfunction getFillerOffset() {\n\treturn null;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/uielement\n */\n\nimport Element from './element';\nimport Node from './node';\nimport { CKEditorError, keyCodes } from '@ckeditor/ckeditor5-utils';\n\nimport type View from './view';\nimport type DomConverter from './domconverter';\nimport type Item from './item';\n\ntype DomDocument = globalThis.Document;\ntype DomElement = globalThis.HTMLElement;\n\n/**\n * UI element class. It should be used to represent editing UI which needs to be injected into the editing view\n * If possible, you should keep your UI outside the editing view. However, if that is not possible,\n * UI elements can be used.\n *\n * How a UI element is rendered is in your control (you pass a callback to\n * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `downcastWriter#createUIElement()`}).\n * The editor will ignore your UI element – the selection cannot be placed in it, it is skipped (invisible) when\n * the user modifies the selection by using arrow keys and the editor does not listen to any mutations which\n * happen inside your UI elements.\n *\n * The limitation is that you cannot convert a model element to a UI element. UI elements need to be\n * created for {@link module:engine/model/markercollection~Marker markers} or as additinal elements\n * inside normal {@link module:engine/view/containerelement~ContainerElement container elements}.\n *\n * To create a new UI element use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `downcastWriter#createUIElement()`} method.\n *\n * @extends module:engine/view/element~Element\n */\nexport default class UIElement extends Element {\n\tpublic override getFillerOffset: () => null;\n\n\t/**\n\t * Creates new instance of UIElement.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-uielement-cannot-add` when third parameter is passed,\n\t * to inform that usage of UIElement is incorrect (adding child nodes to UIElement is forbidden).\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createUIElement\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this element belongs.\n\t * @param {String} name Node name.\n\t * @param {Object|Iterable} [attributes] Collection of attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into created element.\n\t */\n\tconstructor( ...args: ConstructorParameters<typeof Element> ) {\n\t\tsuper( ...args );\n\n\t\t/**\n\t\t * Returns `null` because filler is not needed for UIElements.\n\t\t *\n\t\t * @method #getFillerOffset\n\t\t * @returns {null} Always returns null.\n\t\t */\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n\n\t/**\n\t * Overrides {@link module:engine/view/element~Element#_insertChild} method.\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-uielement-cannot-add` to prevent adding any child nodes\n\t * to UIElement.\n\t *\n\t * @protected\n\t */\n\tpublic override _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tif ( items && ( items instanceof Node || Array.from( items as Iterable<Item> ).length > 0 ) ) {\n\t\t\t/**\n\t\t\t * Cannot add children to {@link module:engine/view/uielement~UIElement}.\n\t\t\t *\n\t\t\t * @error view-uielement-cannot-add\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-uielement-cannot-add', [ this, items ] );\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * Renders this {@link module:engine/view/uielement~UIElement} to DOM. This method is called by\n\t * {@link module:engine/view/domconverter~DomConverter}.\n\t * Do not use inheritance to create custom rendering method, replace `render()` method instead:\n\t *\n\t *\t\tconst myUIElement = downcastWriter.createUIElement( 'span' );\n\t *\t\tmyUIElement.render = function( domDocument, domConverter ) {\n\t *\t\t\tconst domElement = this.toDomElement( domDocument );\n\t *\n\t *\t\t\tdomConverter.setContentOf( domElement, '<b>this is ui element</b>' );\n\t *\n\t *\t\t\treturn domElement;\n\t *\t\t};\n\t *\n\t * If changes in your UI element should trigger some editor UI update you should call\n\t * the {@link module:core/editor/editorui~EditorUI#update `editor.ui.update()`} method\n\t * after rendering your UI element.\n\t *\n\t * @param {Document} domDocument\n\t * @param {module:engine/view/domconverter~DomConverter} domConverter Instance of the DomConverter used to optimize the output.\n\t * @returns {HTMLElement}\n\t */\n\tpublic render( domDocument: DomDocument, domConverter: DomConverter ): DomElement {\n\t\t// Provide basic, default output.\n\t\treturn this.toDomElement( domDocument );\n\t}\n\n\t/**\n\t * Creates DOM element based on this view UIElement.\n\t * Note that each time this method is called new DOM element is created.\n\t *\n\t * @param {Document} domDocument\n\t * @returns {HTMLElement}\n\t */\n\tpublic toDomElement( domDocument: DomDocument ): DomElement {\n\t\tconst domElement = domDocument.createElement( this.name );\n\n\t\tfor ( const key of this.getAttributeKeys() ) {\n\t\t\tdomElement.setAttribute( key, this.getAttribute( key )! );\n\t\t}\n\n\t\treturn domElement;\n\t}\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tuiElement.is( 'uiElement' ); // -> true\n *\t\tuiElement.is( 'element' ); // -> true\n *\t\tuiElement.is( 'node' ); // -> true\n *\t\tuiElement.is( 'view:uiElement' ); // -> true\n *\t\tuiElement.is( 'view:element' ); // -> true\n *\t\tuiElement.is( 'view:node' ); // -> true\n *\n *\t\tuiElement.is( 'model:element' ); // -> false\n *\t\tuiElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is an ui element, you can also check its\n * {@link module:engine/view/uielement~UIElement#name name}:\n *\n *\t\tuiElement.is( 'element', 'span' ); // -> true if this is a span ui element\n *\t\tuiElement.is( 'uiElement', 'span' ); // -> same as above\n *\t\ttext.is( 'element', 'span' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nUIElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'uiElement' || type === 'view:uiElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'uiElement' || type === 'view:uiElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n/**\n * This function injects UI element handling to the given {@link module:engine/view/document~Document document}.\n *\n * A callback is added to {@link module:engine/view/document~Document#event:keydown document keydown event}.\n * The callback handles the situation when right arrow key is pressed and selection is collapsed before a UI element.\n * Without this handler, it would be impossible to \"jump over\" UI element using right arrow key.\n *\n * @param {module:engine/view/view~View} view View controller to which the quirks handling will be injected.\n */\nexport function injectUiElementHandling( view: View ): void {\n\tview.document.on( 'arrowKey', ( evt: unknown, data: any ) =>\n\t\tjumpOverUiElement( evt, data, view.domConverter ), { priority: 'low' } );\n}\n\n// Returns `null` because block filler is not needed for UIElements.\n//\n// @returns {null}\nfunction getFillerOffset() {\n\treturn null;\n}\n\n// Selection cannot be placed in a `UIElement`. Whenever it is placed there, it is moved before it. This\n// causes a situation when it is impossible to jump over `UIElement` using right arrow key, because the selection\n// ends up in ui element (in DOM) and is moved back to the left. This handler fixes this situation.\nfunction jumpOverUiElement( evt: unknown, data: any, domConverter: DomConverter ) {\n\tif ( data.keyCode == keyCodes.arrowright ) {\n\t\tconst domSelection = data.domTarget.ownerDocument.defaultView.getSelection();\n\t\tconst domSelectionCollapsed = domSelection.rangeCount == 1 && domSelection.getRangeAt( 0 ).collapsed;\n\n\t\t// Jump over UI element if selection is collapsed or shift key is pressed. These are the cases when selection would extend.\n\t\tif ( domSelectionCollapsed || data.shiftKey ) {\n\t\t\tconst domParent = domSelection.focusNode;\n\t\t\tconst domOffset = domSelection.focusOffset;\n\n\t\t\tconst viewPosition = domConverter.domPositionToView( domParent, domOffset );\n\n\t\t\t// In case if dom element is not converted to view or is not mapped or something. Happens for example in some tests.\n\t\t\tif ( viewPosition === null ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Skip all following ui elements.\n\t\t\tlet jumpedOverAnyUiElement = false;\n\n\t\t\tconst nextViewPosition = viewPosition.getLastMatchingPosition( value => {\n\t\t\t\tif ( value.item.is( 'uiElement' ) ) {\n\t\t\t\t\t// Remember that there was at least one ui element.\n\t\t\t\t\tjumpedOverAnyUiElement = true;\n\t\t\t\t}\n\n\t\t\t\t// Jump over ui elements, jump over empty attribute elements, move up from inside of attribute element.\n\t\t\t\tif ( value.item.is( 'uiElement' ) || value.item.is( 'attributeElement' ) ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\t// Don't jump over text or don't get out of container element.\n\t\t\t\treturn false;\n\t\t\t} );\n\n\t\t\t// If anything has been skipped, fix position.\n\t\t\t// This `if` could be possibly omitted but maybe it is better not to mess with DOM selection if not needed.\n\t\t\tif ( jumpedOverAnyUiElement ) {\n\t\t\t\tconst newDomPosition = domConverter.viewPositionToDom( nextViewPosition )!;\n\n\t\t\t\tif ( domSelectionCollapsed ) {\n\t\t\t\t\t// Selection was collapsed, so collapse it at further position.\n\t\t\t\t\tdomSelection.collapse( newDomPosition.parent, newDomPosition.offset );\n\t\t\t\t} else {\n\t\t\t\t\t// Selection was not collapse, so extend it instead of collapsing.\n\t\t\t\t\tdomSelection.extend( newDomPosition.parent, newDomPosition.offset );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/rawelement\n */\n\nimport Element from './element';\nimport Node from './node';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type DomConverter from './domconverter';\nimport type Item from './item';\n\ntype DomElement = globalThis.HTMLElement;\n\n/**\n * The raw element class.\n *\n * The raw elements work as data containers (\"wrappers\", \"sandboxes\") but their children are not managed or\n * even recognized by the editor. This encapsulation allows integrations to maintain custom DOM structures\n * in the editor content without, for instance, worrying about compatibility with other editor features.\n * Raw elements are a perfect tool for integration with external frameworks and data sources.\n *\n * Unlike {@link module:engine/view/uielement~UIElement UI elements}, raw elements act like real editor\n * content (similar to {@link module:engine/view/containerelement~ContainerElement} or\n * {@link module:engine/view/emptyelement~EmptyElement}), they are considered by the editor selection and\n * {@link module:widget/utils~toWidget they can work as widgets}.\n *\n * To create a new raw element, use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createRawElement `downcastWriter#createRawElement()`} method.\n *\n * @extends module:engine/view/element~Element\n */\nexport default class RawElement extends Element {\n\tpublic override getFillerOffset: () => null;\n\n\t/**\n\t * Creates a new instance of a raw element.\n\t *\n\t * Throws the `view-rawelement-cannot-add` {@link module:utils/ckeditorerror~CKEditorError CKEditorError} when the `children`\n\t * parameter is passed to inform that the usage of `RawElement` is incorrect (adding child nodes to `RawElement` is forbidden).\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createRawElement\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document instance to which this element belongs.\n\t * @param {String} name A node name.\n\t * @param {Object|Iterable} [attrs] The collection of attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into the created element.\n\t */\n\tconstructor( ...args: ConstructorParameters<typeof Element> ) {\n\t\tsuper( ...args );\n\n\t\t/**\n\t\t * Returns `null` because filler is not needed for raw elements.\n\t\t *\n\t\t * @method #getFillerOffset\n\t\t * @returns {null} Always returns null.\n\t\t */\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n\n\t/**\n\t * Overrides the {@link module:engine/view/element~Element#_insertChild} method.\n\t * Throws the `view-rawelement-cannot-add` {@link module:utils/ckeditorerror~CKEditorError CKEditorError} to prevent\n\t * adding any child nodes to a raw element.\n\t *\n\t * @protected\n\t */\n\tpublic override _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tif ( items && ( items instanceof Node || Array.from( items as Iterable<Item> ).length > 0 ) ) {\n\t\t\t/**\n\t\t\t * Cannot add children to a {@link module:engine/view/rawelement~RawElement} instance.\n\t\t\t *\n\t\t\t * @error view-rawelement-cannot-add\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-rawelement-cannot-add',\n\t\t\t\t[ this, items ]\n\t\t\t);\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * This allows rendering the children of a {@link module:engine/view/rawelement~RawElement} on the DOM level.\n\t * This method is called by the {@link module:engine/view/domconverter~DomConverter} with the raw DOM element\n\t * passed as an argument, leaving the number and shape of the children up to the integrator.\n\t *\n\t * This method **must be defined** for the raw element to work:\n\t *\n\t *\t\tconst myRawElement = downcastWriter.createRawElement( 'div' );\n\t *\n\t *\t\tmyRawElement.render = function( domElement, domConverter ) {\n\t *\t\t\tdomConverter.setContentOf( domElement, '<b>This is the raw content of myRawElement.</b>' );\n\t *\t\t};\n\t *\n\t * @method #render\n\t * @param {HTMLElement} domElement The native DOM element representing the raw view element.\n\t * @param {module:engine/view/domconverter~DomConverter} domConverter Instance of the DomConverter used to optimize the output.\n\t */\n\tpublic render( domElement?: DomElement, domConverter?: DomConverter ): void;\n\tpublic render(): void {}\n\t// TODO\n}\n\n/**\n * Checks whether this object is of the given type or name.\n *\n *\t\trawElement.is( 'rawElement' ); // -> true\n *\t\trawElement.is( 'element' ); // -> true\n *\t\trawElement.is( 'node' ); // -> true\n *\t\trawElement.is( 'view:rawElement' ); // -> true\n *\t\trawElement.is( 'view:element' ); // -> true\n *\t\trawElement.is( 'view:node' ); // -> true\n *\n *\t\trawElement.is( 'model:element' ); // -> false\n *\t\trawElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is a raw element, you can also check its\n * {@link module:engine/view/rawelement~RawElement#name name}:\n *\n *\t\trawElement.is( 'img' ); // -> true if this is an img element\n *\t\trawElement.is( 'rawElement', 'img' ); // -> same as above\n *\t\ttext.is( 'img' ); -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type The type to check when the `name` parameter is present.\n * Otherwise, it acts like the `name` parameter.\n * @param {String} [name] The element name.\n * @returns {Boolean}\n */\nRawElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'rawElement' || type === 'view:rawElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === this.name || type === 'view:' + this.name ||\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'rawElement' || type === 'view:rawElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n// Returns `null` because block filler is not needed for raw elements.\n//\n// @returns {null}\nfunction getFillerOffset() {\n\treturn null;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/documentfragment\n */\n\nimport TypeCheckable from './typecheckable';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport { EmitterMixin, isIterable } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Document, ChangeType } from './document';\n\nimport type Item from './item';\nimport type Node from './node';\n\n/**\n * Document fragment.\n *\n * To create a new document fragment instance use the\n * {@link module:engine/view/upcastwriter~UpcastWriter#createDocumentFragment `UpcastWriter#createDocumentFragment()`}\n * method.\n */\nexport default class DocumentFragment extends EmitterMixin( TypeCheckable ) {\n\tpublic readonly document: Document;\n\tprivate readonly _children: Array<Node>;\n\n\t/**\n\t * Creates new DocumentFragment instance.\n\t *\n\t * @protected\n\t * @param {module:engine/view/document~Document} document The document to which this document fragment belongs.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into the created document fragment.\n\t */\n\tconstructor( document: Document, children?: Node | Iterable<Node> ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The document to which this document fragment belongs.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = document;\n\n\t\t/**\n\t\t * Array of child nodes.\n\t\t *\n\t\t * @protected\n\t\t * @member {Array.<module:engine/view/node~Node>} module:engine/view/documentfragment~DocumentFragment#_children\n\t\t */\n\t\tthis._children = [];\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over nodes added to this document fragment.\n\t *\n\t * @returns {Iterable.<module:engine/view/node~Node>}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Number of child nodes in this document fragment.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this document fragment, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this.childCount === 0;\n\t}\n\n\t/**\n\t * Artificial root of `DocumentFragment`. Returns itself. Added for compatibility reasons.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): this {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Artificial parent of `DocumentFragment`. Returns `null`. Added for compatibility reasons.\n\t *\n\t * @readonly\n\t * @type {null}\n\t */\n\tpublic get parent(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * {@link module:engine/view/documentfragment~DocumentFragment#_insertChild Insert} a child node or a list of child nodes at the end\n\t * and sets the parent of these nodes to this fragment.\n\t *\n\t * @param {module:engine/view/item~Item|Iterable.<module:engine/view/item~Item>} items Items to be inserted.\n\t * @returns {Number} Number of appended nodes.\n\t */\n\tpublic _appendChild( items: Item | Iterable<Item> ): number {\n\t\treturn this._insertChild( this.childCount, items );\n\t}\n\n\t/**\n\t * Gets child at the given index.\n\t *\n\t * @param {Number} index Index of child.\n\t * @returns {module:engine/view/node~Node} Child node.\n\t */\n\tpublic getChild( index: number ): Node {\n\t\treturn this._children[ index ];\n\t}\n\n\t/**\n\t * Gets index of the given child node. Returns `-1` if child node is not found.\n\t *\n\t * @param {module:engine/view/node~Node} node Child node.\n\t * @returns {Number} Index of the child node.\n\t */\n\tpublic getChildIndex( node: Node ): number {\n\t\treturn this._children.indexOf( node );\n\t}\n\n\t/**\n\t * Gets child nodes iterator.\n\t *\n\t * @returns {Iterable.<module:engine/view/node~Node>} Child nodes iterator.\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Inserts a child node or a list of child nodes on the given index and sets the parent of these nodes to\n\t * this fragment.\n\t *\n\t * @param {Number} index Position where nodes should be inserted.\n\t * @param {module:engine/view/item~Item|Iterable.<module:engine/view/item~Item>} items Items to be inserted.\n\t * @returns {Number} Number of inserted nodes.\n\t */\n\tpublic _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tthis._fireChange( 'children', this );\n\t\tlet count = 0;\n\n\t\tconst nodes = normalize( this.document, items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\tnode.parent = this;\n\n\t\t\tthis._children.splice( index, 0, node );\n\t\t\tindex++;\n\t\t\tcount++;\n\t\t}\n\n\t\treturn count;\n\t}\n\n\t/**\n\t * Removes number of child nodes starting at the given index and set the parent of these nodes to `null`.\n\t *\n\t * @internal\n\t * @param {Number} index Number of the first node to remove.\n\t * @param {Number} [howMany=1] Number of nodes to remove.\n\t * @returns {Array.<module:engine/view/node~Node>} The array of removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tthis._fireChange( 'children', this );\n\n\t\tfor ( let i = index; i < index + howMany; i++ ) {\n\t\t\tthis._children[ i ].parent = null;\n\t\t}\n\n\t\treturn this._children.splice( index, howMany );\n\t}\n\n\t/**\n\t * Fires `change` event with given type of the change.\n\t *\n\t * @private\n\t * @param {module:engine/view/document~ChangeType} type Type of the change.\n\t * @param {module:engine/view/node~Node} node Changed node.\n\t * @fires module:engine/view/node~Node#change\n\t */\n\tpublic _fireChange( type: ChangeType, node: Node | DocumentFragment ): void {\n\t\tthis.fire( 'change:' + type, node );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // printTree() {\n\t// @if CK_DEBUG_ENGINE //\tlet string = 'ViewDocumentFragment: [';\n\n\t// @if CK_DEBUG_ENGINE //\tfor ( const child of this.getChildren() ) {\n\t// @if CK_DEBUG_ENGINE //\t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE //\t\t\tstring += '\\n' + '\\t'.repeat( 1 ) + child.data;\n\t// @if CK_DEBUG_ENGINE //\t\t} else {\n\t// @if CK_DEBUG_ENGINE //\t\t\tstring += '\\n' + child.printTree( 1 );\n\t// @if CK_DEBUG_ENGINE //\t\t}\n\t// @if CK_DEBUG_ENGINE //\t}\n\n\t// @if CK_DEBUG_ENGINE //\tstring += '\\n]';\n\n\t// @if CK_DEBUG_ENGINE //\treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logTree() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\tdocFrag.is( 'documentFragment' ); // -> true\n *\t\tdocFrag.is( 'view:documentFragment' ); // -> true\n *\n *\t\tdocFrag.is( 'model:documentFragment' ); // -> false\n *\t\tdocFrag.is( 'element' ); // -> false\n *\t\tdocFrag.is( 'node' ); // -> false\n *\n * {@link module:engine/view/node~Node#is Check the entire list of view objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nDocumentFragment.prototype.is = function( type: string ): boolean {\n\treturn type === 'documentFragment' || type === 'view:documentFragment';\n};\n\n// Converts strings to Text and non-iterables to arrays.\n//\n// @param {String|module:engine/view/item~Item|Iterable.<String|module:engine/view/item~Item>}\n// @returns {Iterable.<module:engine/view/node~Node>}\nfunction normalize( document: Document, nodes: Item | Iterable<Item> ): Array<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( document, nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( document, node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( document, node.data );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module module:engine/view/downcastwriter\n */\n\nimport Position from './position';\nimport Range from './range';\nimport Selection from './selection';\nimport ContainerElement from './containerelement';\nimport AttributeElement from './attributeelement';\nimport EmptyElement from './emptyelement';\nimport UIElement from './uielement';\nimport RawElement from './rawelement';\nimport { CKEditorError, isIterable } from '@ckeditor/ckeditor5-utils';\nimport DocumentFragment from './documentfragment';\nimport Text from './text';\nimport EditableElement from './editableelement';\nimport { isPlainObject } from 'lodash-es';\n\nimport type Document from './document';\nimport type Node from './node';\nimport type { default as Element, ElementAttributes } from './element';\nimport type DomConverter from './domconverter';\nimport type Item from './item';\nimport type { SlotFilter } from '../conversion/downcasthelpers';\n\ntype DomDocument = globalThis.Document;\ntype DomElement = globalThis.HTMLElement;\n\n/**\n * View downcast writer.\n *\n * It provides a set of methods used to manipulate view nodes.\n *\n * Do not create an instance of this writer manually. To modify a view structure, use\n * the {@link module:engine/view/view~View#change `View#change()`} block.\n *\n * The `DowncastWriter` is designed to work with semantic views which are the views that were/are being downcasted from the model.\n * To work with ordinary views (e.g. parsed from a pasted content) use the\n * {@link module:engine/view/upcastwriter~UpcastWriter upcast writer}.\n *\n * Read more about changing the view in the {@glink framework/guides/architecture/editing-engine#changing-the-view Changing the view}\n * section of the {@glink framework/guides/architecture/editing-engine Editing engine architecture} guide.\n */\nexport default class DowncastWriter {\n\tpublic readonly document: Document;\n\tprivate readonly _cloneGroups: Map<string | number, Set<AttributeElement>>;\n\tprivate _slotFactory: ( ( writer: DowncastWriter, modeOrFilter: string | SlotFilter ) => Element ) | null;\n\n\t/**\n\t * @param {module:engine/view/document~Document} document The view document instance.\n\t */\n\tconstructor( document: Document ) {\n\t\t/**\n\t\t * The view document instance in which this writer operates.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = document;\n\n\t\t/**\n\t\t * Holds references to the attribute groups that share the same {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t\t * The keys are `id`s, the values are `Set`s holding {@link module:engine/view/attributeelement~AttributeElement}s.\n\t\t *\n\t\t * @private\n\t\t * @type {Map.<String,Set>}\n\t\t */\n\t\tthis._cloneGroups = new Map();\n\n\t\t/**\n\t\t * The slot factory used by the `elementToStructure` downcast helper.\n\t\t *\n\t\t * @private\n\t\t * @type {Function|null}\n\t\t */\n\t\tthis._slotFactory = null;\n\t}\n\n\t/**\n\t * Sets {@link module:engine/view/documentselection~DocumentSelection selection's} ranges and direction to the\n\t * specified location based on the given {@link module:engine/view/selection~Selectable selectable}.\n\t *\n\t * Usage:\n\t *\n\t *\t\t// Sets selection to the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\twriter.setSelection( range );\n\t *\n\t *\t\t// Sets backward selection to the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\twriter.setSelection( range );\n\t *\n\t *\t\t// Sets selection to given ranges.\n\t * \t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( start2, end2 ) ];\n\t *\t\twriter.setSelection( range );\n\t *\n\t *\t\t// Sets selection to the other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\twriter.setSelection( otherSelection );\n\t *\n\t * \t\t// Sets collapsed selection at the given position.\n\t *\t\tconst position = writer.createPositionFromPath( root, path );\n\t *\t\twriter.setSelection( position );\n\t *\n\t * \t\t// Sets collapsed selection at the position of given item and offset.\n\t *\t\tconst paragraph = writer.createContainerElement( 'p' );\n\t *\t\twriter.setSelection( paragraph, offset );\n\t *\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n \t * that element and ends after the last child of that element.\n\t *\n\t * \t\twriter.setSelection( paragraph, 'in' );\n\t *\n\t * Creates a range on the {@link module:engine/view/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t *\t\twriter.setSelection( paragraph, 'on' );\n\t *\n\t * \t\t// Removes all ranges.\n\t *\t\twriter.setSelection( null );\n\t *\n\t * `DowncastWriter#setSelection()` allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Sets selection as backward.\n\t *\t\twriter.setSelection( range, { backward: true } );\n\t *\n\t *\t\t// Sets selection as fake.\n\t *\t\t// Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * \t\t// This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * \t\t// represented in other way, for example by applying proper CSS class.\n\t *\t\twriter.setSelection( range, { fake: true } );\n\t *\n\t * \t\t// Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * \t\t// (and be  properly handled by screen readers).\n\t *\t\twriter.setSelection( range, { fake: true, label: 'foo' } );\n\t *\n\t * @param {module:engine/view/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t */\n\tpublic setSelection( ...args: Parameters<Selection[ 'setTo' ]> ): void {\n\t\tthis.document.selection._setTo( ...args );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/view/documentselection~DocumentSelection#focus selection's focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as {@link module:engine/view/view~View#createPositionAt view.createPositionAt()}\n\t * parameters.\n\t *\n\t * @param {module:engine/view/item~Item|module:engine/view/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic setSelectionFocus( ...args: Parameters<Selection[ 'setFocus' ]> ): void {\n\t\tthis.document.selection._setFocus( ...args );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/documentfragment~DocumentFragment} instance.\n\t *\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into the created document fragment.\n\t * @returns {module:engine/view/documentfragment~DocumentFragment} The created document fragment.\n\t */\n\tpublic createDocumentFragment( children: Node | Iterable<Node> ): DocumentFragment {\n\t\treturn new DocumentFragment( this.document, children );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/text~Text text node}.\n\t *\n\t *\t\twriter.createText( 'foo' );\n\t *\n\t * @param {String} data The text's data.\n\t * @returns {module:engine/view/text~Text} The created text node.\n\t */\n\tpublic createText( data: string ): Text {\n\t\treturn new Text( this.document, data );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/attributeelement~AttributeElement}.\n\t *\n\t *\t\twriter.createAttributeElement( 'strong' );\n\t *\t\twriter.createAttributeElement( 'a', { href: 'foo.bar' } );\n\t *\n\t *\t\t// Make `<a>` element contain other attributes element so the `<a>` element is not broken.\n\t *\t\twriter.createAttributeElement( 'a', { href: 'foo.bar' }, { priority: 5 } );\n\t *\n\t *\t\t// Set `id` of a marker element so it is not joined or merged with \"normal\" elements.\n\t *\t\twriter.createAttributeElement( 'span', { class: 'my-marker' }, { id: 'marker:my' } );\n\t *\n\t * @param {String} name Name of the element.\n\t * @param {Object} [attributes] Element's attributes.\n\t * @param {Object} [options] Element's options.\n\t * @param {Number} [options.priority] Element's {@link module:engine/view/attributeelement~AttributeElement#priority priority}.\n\t * @param {Number|String} [options.id] Element's {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t * @param {Array.<String>} [options.renderUnsafeAttributes] A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns {module:engine/view/attributeelement~AttributeElement} Created element.\n\t */\n\tpublic createAttributeElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\toptions: {\n\t\t\tpriority?: number;\n\t\t\tid?: number | string;\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): AttributeElement {\n\t\tconst attributeElement = new AttributeElement( this.document, name, attributes );\n\n\t\tif ( typeof options.priority === 'number' ) {\n\t\t\t( attributeElement as any )._priority = options.priority;\n\t\t}\n\n\t\tif ( options.id ) {\n\t\t\t( attributeElement as any )._id = options.id;\n\t\t}\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\t( attributeElement as any )._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn attributeElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/containerelement~ContainerElement}.\n\t *\n\t *\t\twriter.createContainerElement( 'p' );\n\t *\n\t *\t\t// Create element with custom attributes.\n\t *\t\twriter.createContainerElement( 'div', { id: 'foo-bar', 'data-baz': '123' } );\n\t *\n\t *\t\t// Create element with custom styles.\n\t *\t\twriter.createContainerElement( 'p', { style: 'font-weight: bold; padding-bottom: 10px' } );\n\t *\n\t *\t\t// Create element with custom classes.\n\t *\t\twriter.createContainerElement( 'p', { class: 'foo bar baz' } );\n\t *\n\t *\t\t// Create element with children.\n\t *\t\twriter.createContainerElement( 'figure', { class: 'image' }, [\n\t *\t\t\twriter.createEmptyElement( 'img' ),\n\t *\t\t\twriter.createContainerElement( 'figcaption' )\n\t *\t\t] );\n\t *\n\t *\t\t// Create element with specific options.\n\t *\t\twriter.createContainerElement( 'span', { class: 'placeholder' }, { renderUnsafeAttributes: [ 'foo' ] } );\n\t *\n\t * @param {String} name Name of the element.\n\t * @param {Object} [attributes] Elements attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>|Object} [childrenOrOptions]\n\t * A node or a list of nodes to be inserted into the created element. If no children were specified, element's `options`\n\t * can be passed in this argument.\n\t * @param {Object} [options] Element's options.\n\t * @param {Array.<String>} [options.renderUnsafeAttributes] A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns {module:engine/view/containerelement~ContainerElement} Created element.\n\t */\n\tpublic createContainerElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\toptions?: { renderUnsafeAttributes?: Array<string> }\n\t): ContainerElement;\n\tpublic createContainerElement(\n\t\tname: string,\n\t\tattributes: ElementAttributes,\n\t\tchildren: Node | Iterable<Node>,\n\t\toptions?: { renderUnsafeAttributes?: Array<string> }\n\t): ContainerElement;\n\tpublic createContainerElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\tchildrenOrOptions: Node | Iterable<Node> | { renderUnsafeAttributes?: Array<string> } = {},\n\t\toptions: { renderUnsafeAttributes?: Array<string> } = {}\n\t): ContainerElement {\n\t\tlet children = null;\n\n\t\tif ( isPlainObject( childrenOrOptions ) ) {\n\t\t\toptions = childrenOrOptions as { renderUnsafeAttributes?: Array<string> };\n\t\t} else {\n\t\t\tchildren = childrenOrOptions;\n\t\t}\n\n\t\tconst containerElement = new ContainerElement( this.document, name, attributes, children as Node | Iterable<Node> );\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\t( containerElement as any )._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn containerElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/editableelement~EditableElement}.\n\t *\n\t *\t\twriter.createEditableElement( 'div' );\n\t *\t\twriter.createEditableElement( 'div', { id: 'foo-1234' } );\n\t *\n\t * Note: The editable element is to be used in the editing pipeline. Usually, together with\n\t * {@link module:widget/utils~toWidgetEditable `toWidgetEditable()`}.\n\t *\n\t * @param {String} name Name of the element.\n\t * @param {Object} [attributes] Elements attributes.\n\t * @param {Object} [options] Element's options.\n\t * @param {Array.<String>} [options.renderUnsafeAttributes] A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns {module:engine/view/editableelement~EditableElement} Created element.\n\t */\n\tpublic createEditableElement(\n\t\tname: string,\n\t\tattributes: ElementAttributes,\n\t\toptions: {\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): EditableElement {\n\t\tconst editableElement = new EditableElement( this.document, name, attributes );\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\t( editableElement as any )._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn editableElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/emptyelement~EmptyElement}.\n\t *\n\t *\t\twriter.createEmptyElement( 'img' );\n\t *\t\twriter.createEmptyElement( 'img', { id: 'foo-1234' } );\n\t *\n\t * @param {String} name Name of the element.\n\t * @param {Object} [attributes] Elements attributes.\n\t * @param {Object} [options] Element's options.\n\t * @param {Array.<String>} [options.renderUnsafeAttributes] A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns {module:engine/view/emptyelement~EmptyElement} Created element.\n\t */\n\tpublic createEmptyElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\toptions: {\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): EmptyElement {\n\t\tconst emptyElement = new EmptyElement( this.document, name, attributes );\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\t( emptyElement as any )._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn emptyElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/uielement~UIElement}.\n\t *\n\t *\t\twriter.createUIElement( 'span' );\n\t *\t\twriter.createUIElement( 'span', { id: 'foo-1234' } );\n\t *\n\t * A custom render function can be provided as the third parameter:\n\t *\n\t *\t\twriter.createUIElement( 'span', null, function( domDocument ) {\n\t *\t\t\tconst domElement = this.toDomElement( domDocument );\n\t *\t\t\tdomElement.innerHTML = '<b>this is ui element</b>';\n\t *\n\t *\t\t\treturn domElement;\n\t *\t\t} );\n\t *\n\t * Unlike {@link #createRawElement raw elements}, UI elements are by no means editor content, for instance,\n\t * they are ignored by the editor selection system.\n\t *\n\t * You should not use UI elements as data containers. Check out {@link #createRawElement} instead.\n\t *\n\t * @param {String} name The name of the element.\n\t * @param {Object} [attributes] Element attributes.\n\t * @param {Function} [renderFunction] A custom render function.\n\t * @returns {module:engine/view/uielement~UIElement} The created element.\n\t */\n\tpublic createUIElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\trenderFunction?: ( this: UIElement, domDocument: DomDocument, domConverter?: DomConverter ) => DomElement\n\t): UIElement {\n\t\tconst uiElement = new UIElement( this.document, name, attributes );\n\n\t\tif ( renderFunction ) {\n\t\t\tuiElement.render = renderFunction;\n\t\t}\n\n\t\treturn uiElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/rawelement~RawElement}.\n\t *\n\t *\t\twriter.createRawElement( 'span', { id: 'foo-1234' }, function( domElement ) {\n\t *\t\t\tdomElement.innerHTML = '<b>This is the raw content of the raw element.</b>';\n\t *\t\t} );\n\t *\n\t * Raw elements work as data containers (\"wrappers\", \"sandboxes\") but their children are not managed or\n\t * even recognized by the editor. This encapsulation allows integrations to maintain custom DOM structures\n\t * in the editor content without, for instance, worrying about compatibility with other editor features.\n\t * Raw elements are a perfect tool for integration with external frameworks and data sources.\n\t *\n\t * Unlike {@link #createUIElement UI elements}, raw elements act like \"real\" editor content (similar to\n\t * {@link module:engine/view/containerelement~ContainerElement} or {@link module:engine/view/emptyelement~EmptyElement}),\n\t * and they are considered by the editor selection.\n\t *\n\t * You should not use raw elements to render the UI in the editor content. Check out {@link #createUIElement `#createUIElement()`}\n\t * instead.\n\t *\n\t * @param {String} name The name of the element.\n\t * @param {Object} [attributes] Element attributes.\n\t * @param {Function} [renderFunction] A custom render function.\n\t * @param {Object} [options] Element's options.\n\t * @param {Array.<String>} [options.renderUnsafeAttributes] A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns {module:engine/view/rawelement~RawElement} The created element.\n\t */\n\tpublic createRawElement(\n\t\tname: string,\n\t\tattributes: ElementAttributes,\n\t\trenderFunction: ( domElement: DomElement, domConverter?: DomConverter ) => void,\n\t\toptions: {\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): RawElement {\n\t\tconst rawElement = new RawElement( this.document, name, attributes );\n\n\t\tif ( renderFunction ) {\n\t\t\trawElement.render = renderFunction;\n\t\t}\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\t( rawElement as any )._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn rawElement;\n\t}\n\n\t/**\n\t * Adds or overwrites the element's attribute with a specified key and value.\n\t *\n\t *\t\twriter.setAttribute( 'href', 'http://ckeditor.com', linkElement );\n\t *\n\t * @param {String} key The attribute key.\n\t * @param {String} value The attribute value.\n\t * @param {module:engine/view/element~Element} element\n\t */\n\tpublic setAttribute( key: string, value: string, element: Element ): void {\n\t\telement._setAttribute( key, value );\n\t}\n\n\t/**\n\t * Removes attribute from the element.\n\t *\n\t *\t\twriter.removeAttribute( 'href', linkElement );\n\t *\n\t * @param {String} key Attribute key.\n\t * @param {module:engine/view/element~Element} element\n\t */\n\tpublic removeAttribute( key: string, element: Element ): void {\n\t\telement._removeAttribute( key );\n\t}\n\n\t/**\n\t * Adds specified class to the element.\n\t *\n\t *\t\twriter.addClass( 'foo', linkElement );\n\t *\t\twriter.addClass( [ 'foo', 'bar' ], linkElement );\n\t *\n\t * @param {Array.<String>|String} className\n\t * @param {module:engine/view/element~Element} element\n\t */\n\tpublic addClass( className: string | Array<string>, element: Element ): void {\n\t\telement._addClass( className );\n\t}\n\n\t/**\n\t * Removes specified class from the element.\n\t *\n\t *\t\twriter.removeClass( 'foo', linkElement );\n\t *\t\twriter.removeClass( [ 'foo', 'bar' ], linkElement );\n\t *\n\t * @param {Array.<String>|String} className\n\t * @param {module:engine/view/element~Element} element\n\t */\n\tpublic removeClass( className: string | Array<string>, element: Element ): void {\n\t\telement._removeClass( className );\n\t}\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t *\t\twriter.setStyle( 'color', 'red', element );\n\t *\t\twriter.setStyle( {\n\t *\t\t\tcolor: 'red',\n\t *\t\t\tposition: 'fixed'\n\t *\t\t}, element );\n\t *\n\t * **Note**: The passed style can be normalized if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @param {String|Object} property Property name or object with key - value pairs.\n\t * @param {String} [value] Value to set. This parameter is ignored if object is provided as the first parameter.\n\t * @param {module:engine/view/element~Element} element Element to set styles on.\n\t */\n\tpublic setStyle( property: string, value: string, element: Element ): void;\n\tpublic setStyle( property: Record<string, string>, element: Element ): void;\n\tpublic setStyle(\n\t\tproperty: string | Record<string, string>,\n\t\tvalue: string | Element,\n\t\telement?: Element\n\t): void\n\t{\n\t\tif ( isPlainObject( property ) && element === undefined ) {\n\t\t\t( value as Element )._setStyle( property as Record<string, string> );\n\t\t} else {\n\t\t\telement!._setStyle( property as string, value as string );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified style from the element.\n\t *\n\t *\t\twriter.removeStyle( 'color', element ); // Removes 'color' style.\n\t *\t\twriter.removeStyle( [ 'color', 'border-top' ], element ); // Removes both 'color' and 'border-top' styles.\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#remove `StylesMap#remove()`} for details.\n\t *\n\t * @param {Array.<String>|String} property\n\t * @param {module:engine/view/element~Element} element\n\t */\n\tpublic removeStyle( property: string | Array<string>, element: Element ): void {\n\t\telement._removeStyle( property );\n\t}\n\n\t/**\n\t * Sets a custom property on element. Unlike attributes, custom properties are not rendered to the DOM,\n\t * so they can be used to add special data to elements.\n\t *\n\t * @param {String|Symbol} key\n\t * @param {*} value\n\t * @param {module:engine/view/element~Element} element\n\t */\n\tpublic setCustomProperty( key: string | symbol, value: unknown, element: Element ): void {\n\t\telement._setCustomProperty( key, value );\n\t}\n\n\t/**\n\t * Removes a custom property stored under the given key.\n\t *\n\t * @param {String|Symbol} key\n\t * @param {module:engine/view/element~Element} element\n\t * @returns {Boolean} Returns true if property was removed.\n\t */\n\tpublic removeCustomProperty( key: string | symbol, element: Element ): boolean {\n\t\treturn element._removeCustomProperty( key );\n\t}\n\n\t/**\n\t * Breaks attribute elements at the provided position or at the boundaries of a provided range. It breaks attribute elements\n\t * up to their first ancestor that is a container element.\n\t *\n\t * In following examples `<p>` is a container, `<b>` and `<u>` are attribute elements:\n\t *\n\t *\t\t<p>foo<b><u>bar{}</u></b></p> -> <p>foo<b><u>bar</u></b>[]</p>\n\t *\t\t<p>foo<b><u>{}bar</u></b></p> -> <p>foo{}<b><u>bar</u></b></p>\n\t *\t\t<p>foo<b><u>b{}ar</u></b></p> -> <p>foo<b><u>b</u></b>[]<b><u>ar</u></b></p>\n\t *\t\t<p><b>fo{o</b><u>ba}r</u></p> -> <p><b>fo</b><b>o</b><u>ba</u><u>r</u></b></p>\n\t *\n\t * **Note:** {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment} is treated like a container.\n\t *\n\t * **Note:** The difference between {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes breakAttributes()} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakContainer breakContainer()} is that `breakAttributes()` breaks all\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} that are ancestors of a given `position`,\n\t * up to the first encountered {@link module:engine/view/containerelement~ContainerElement container element}.\n\t * `breakContainer()` assumes that a given `position` is directly in the container element and breaks that container element.\n\t *\n\t * Throws the `view-writer-invalid-range-container` {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * when the {@link module:engine/view/range~Range#start start}\n\t * and {@link module:engine/view/range~Range#end end} positions of a passed range are not placed inside same parent container.\n\t *\n\t * Throws the `view-writer-cannot-break-empty-element` {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * when trying to break attributes inside an {@link module:engine/view/emptyelement~EmptyElement EmptyElement}.\n\t *\n\t * Throws the `view-writer-cannot-break-ui-element` {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * when trying to break attributes inside a {@link module:engine/view/uielement~UIElement UIElement}.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#breakContainer\n\t * @param {module:engine/view/position~Position|module:engine/view/range~Range} positionOrRange The position where\n\t * to break attribute elements.\n\t * @returns {module:engine/view/position~Position|module:engine/view/range~Range} The new position or range, after breaking the\n\t * attribute elements.\n\t */\n\tpublic breakAttributes( positionOrRange: Position | Range ): Position | Range {\n\t\tif ( positionOrRange instanceof Position ) {\n\t\t\treturn this._breakAttributes( positionOrRange );\n\t\t} else {\n\t\t\treturn this._breakAttributesRange( positionOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Breaks a {@link module:engine/view/containerelement~ContainerElement container view element} into two, at the given position.\n\t * The position has to be directly inside the container element and cannot be in the root. It does not break the conrainer view element\n\t * if the position is at the beginning or at the end of its parent element.\n\t *\n\t *\t\t<p>foo^bar</p> -> <p>foo</p><p>bar</p>\n\t *\t\t<div><p>foo</p>^<p>bar</p></div> -> <div><p>foo</p></div><div><p>bar</p></div>\n\t *\t\t<p>^foobar</p> -> ^<p>foobar</p>\n\t *\t\t<p>foobar^</p> -> <p>foobar</p>^\n\t *\n\t * **Note:** The difference between {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes breakAttributes()} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakContainer breakContainer()} is that `breakAttributes()` breaks all\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} that are ancestors of a given `position`,\n\t * up to the first encountered {@link module:engine/view/containerelement~ContainerElement container element}.\n\t * `breakContainer()` assumes that the given `position` is directly in the container element and breaks that container element.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#breakAttributes\n\t * @param {module:engine/view/position~Position} position The position where to break the element.\n\t * @returns {module:engine/view/position~Position} The position between broken elements. If an element has not been broken,\n\t * the returned position is placed either before or after it.\n\t */\n\tpublic breakContainer( position: Position ): Position {\n\t\tconst element = position.parent;\n\n\t\tif ( !( element.is( 'containerElement' ) ) ) {\n\t\t\t/**\n\t\t\t * Trying to break an element which is not a container element.\n\t\t\t *\n\t\t\t * @error view-writer-break-non-container-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-break-non-container-element', this.document );\n\t\t}\n\n\t\tif ( !element.parent ) {\n\t\t\t/**\n\t\t\t * Trying to break root element.\n\t\t\t *\n\t\t\t * @error view-writer-break-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-break-root', this.document );\n\t\t}\n\n\t\tif ( position.isAtStart ) {\n\t\t\treturn Position._createBefore( element );\n\t\t} else if ( !position.isAtEnd ) {\n\t\t\tconst newElement = element._clone( false );\n\n\t\t\tthis.insert( Position._createAfter( element ), newElement as any );\n\n\t\t\tconst sourceRange = new Range( position, Position._createAt( element, 'end' ) );\n\t\t\tconst targetPosition = new Position( newElement, 0 );\n\n\t\t\tthis.move( sourceRange, targetPosition );\n\t\t}\n\n\t\treturn Position._createAfter( element );\n\t}\n\n\t/**\n\t * Merges {@link module:engine/view/attributeelement~AttributeElement attribute elements}. It also merges text nodes if needed.\n\t * Only {@link module:engine/view/attributeelement~AttributeElement#isSimilar similar} attribute elements can be merged.\n\t *\n\t * In following examples `<p>` is a container and `<b>` is an attribute element:\n\t *\n\t *\t\t<p>foo[]bar</p> -> <p>foo{}bar</p>\n\t *\t\t<p><b>foo</b>[]<b>bar</b></p> -> <p><b>foo{}bar</b></p>\n\t *\t\t<p><b foo=\"bar\">a</b>[]<b foo=\"baz\">b</b></p> -> <p><b foo=\"bar\">a</b>[]<b foo=\"baz\">b</b></p>\n\t *\n\t * It will also take care about empty attributes when merging:\n\t *\n\t *\t\t<p><b>[]</b></p> -> <p>[]</p>\n\t *\t\t<p><b>foo</b><i>[]</i><b>bar</b></p> -> <p><b>foo{}bar</b></p>\n\t *\n\t * **Note:** Difference between {@link module:engine/view/downcastwriter~DowncastWriter#mergeAttributes mergeAttributes} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#mergeContainers mergeContainers} is that `mergeAttributes` merges two\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} or {@link module:engine/view/text~Text text nodes}\n\t * while `mergeContainer` merges two {@link module:engine/view/containerelement~ContainerElement container elements}.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#mergeContainers\n\t * @param {module:engine/view/position~Position} position Merge position.\n\t * @returns {module:engine/view/position~Position} Position after merge.\n\t */\n\tpublic mergeAttributes( position: Position ): Position {\n\t\tconst positionOffset = position.offset;\n\t\tconst positionParent = position.parent;\n\n\t\t// When inside text node - nothing to merge.\n\t\tif ( positionParent.is( '$text' ) ) {\n\t\t\treturn position;\n\t\t}\n\n\t\t// When inside empty attribute - remove it.\n\t\tif ( positionParent.is( 'attributeElement' ) && positionParent.childCount === 0 ) {\n\t\t\tconst parent = positionParent.parent;\n\t\t\tconst offset = positionParent.index;\n\n\t\t\tpositionParent._remove();\n\t\t\tthis._removeFromClonedElementsGroup( positionParent );\n\n\t\t\treturn this.mergeAttributes( new Position( parent!, offset! ) );\n\t\t}\n\n\t\tconst nodeBefore = ( positionParent as Element ).getChild( positionOffset - 1 );\n\t\tconst nodeAfter = ( positionParent as Element ).getChild( positionOffset );\n\n\t\t// Position should be placed between two nodes.\n\t\tif ( !nodeBefore || !nodeAfter ) {\n\t\t\treturn position;\n\t\t}\n\n\t\t// When position is between two text nodes.\n\t\tif ( nodeBefore.is( '$text' ) && nodeAfter.is( '$text' ) ) {\n\t\t\treturn mergeTextNodes( nodeBefore, nodeAfter );\n\t\t}\n\t\t// When position is between two same attribute elements.\n\t\telse if ( nodeBefore.is( 'attributeElement' ) && nodeAfter.is( 'attributeElement' ) && nodeBefore.isSimilar( nodeAfter ) ) {\n\t\t\t// Move all children nodes from node placed after selection and remove that node.\n\t\t\tconst count = nodeBefore.childCount;\n\t\t\tnodeBefore._appendChild( nodeAfter.getChildren() );\n\n\t\t\tnodeAfter._remove();\n\t\t\tthis._removeFromClonedElementsGroup( nodeAfter );\n\n\t\t\t// New position is located inside the first node, before new nodes.\n\t\t\t// Call this method recursively to merge again if needed.\n\t\t\treturn this.mergeAttributes( new Position( nodeBefore, count ) );\n\t\t}\n\n\t\treturn position;\n\t}\n\n\t/**\n\t * Merges two {@link module:engine/view/containerelement~ContainerElement container elements} that are before and after given position.\n\t * Precisely, the element after the position is removed and it's contents are moved to element before the position.\n\t *\n\t *\t\t<p>foo</p>^<p>bar</p> -> <p>foo^bar</p>\n\t *\t\t<div>foo</div>^<p>bar</p> -> <div>foo^bar</div>\n\t *\n\t * **Note:** Difference between {@link module:engine/view/downcastwriter~DowncastWriter#mergeAttributes mergeAttributes} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#mergeContainers mergeContainers} is that `mergeAttributes` merges two\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} or {@link module:engine/view/text~Text text nodes}\n\t * while `mergeContainer` merges two {@link module:engine/view/containerelement~ContainerElement container elements}.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#mergeAttributes\n\t * @param {module:engine/view/position~Position} position Merge position.\n\t * @returns {module:engine/view/position~Position} Position after merge.\n\t */\n\tpublic mergeContainers( position: Position ): Position {\n\t\tconst prev = position.nodeBefore;\n\t\tconst next = position.nodeAfter;\n\n\t\tif ( !prev || !next || !prev.is( 'containerElement' ) || !next.is( 'containerElement' ) ) {\n\t\t\t/**\n\t\t\t * Element before and after given position cannot be merged.\n\t\t\t *\n\t\t\t * @error view-writer-merge-containers-invalid-position\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-merge-containers-invalid-position', this.document );\n\t\t}\n\n\t\tconst lastChild = prev.getChild( prev.childCount - 1 );\n\t\tconst newPosition = lastChild instanceof Text ? Position._createAt( lastChild, 'end' ) : Position._createAt( prev, 'end' );\n\n\t\tthis.move( Range._createIn( next ), Position._createAt( prev, 'end' ) );\n\t\tthis.remove( Range._createOn( next ) );\n\n\t\treturn newPosition;\n\t}\n\n\t/**\n\t * Inserts a node or nodes at specified position. Takes care about breaking attributes before insertion\n\t * and merging them afterwards.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-insert-invalid-node` when nodes to insert\n\t * contains instances that are not {@link module:engine/view/text~Text Texts},\n\t * {@link module:engine/view/attributeelement~AttributeElement AttributeElements},\n\t * {@link module:engine/view/containerelement~ContainerElement ContainerElements},\n\t * {@link module:engine/view/emptyelement~EmptyElement EmptyElements},\n\t * {@link module:engine/view/rawelement~RawElement RawElements} or\n\t * {@link module:engine/view/uielement~UIElement UIElements}.\n\t *\n\t * @param {module:engine/view/position~Position} position Insertion position.\n\t * @param {module:engine/view/text~Text|module:engine/view/attributeelement~AttributeElement|\n\t * module:engine/view/containerelement~ContainerElement|module:engine/view/emptyelement~EmptyElement|\n\t * module:engine/view/rawelement~RawElement|module:engine/view/uielement~UIElement|\n\t * Iterable.<module:engine/view/text~Text|\n\t * module:engine/view/attributeelement~AttributeElement|module:engine/view/containerelement~ContainerElement|\n\t * module:engine/view/emptyelement~EmptyElement|module:engine/view/rawelement~RawElement|\n\t * module:engine/view/uielement~UIElement>} nodes Node or nodes to insert.\n\t * @returns {module:engine/view/range~Range} Range around inserted nodes.\n\t */\n\tpublic insert( position: Position, nodes: Node | Iterable<Node> ): Range {\n\t\tnodes = isIterable( nodes ) ? [ ...nodes ] : [ nodes ];\n\n\t\t// Check if nodes to insert are instances of AttributeElements, ContainerElements, EmptyElements, UIElements or Text.\n\t\tvalidateNodesToInsert( nodes, this.document );\n\n\t\t// Group nodes in batches of nodes that require or do not require breaking an AttributeElements.\n\t\tconst nodeGroups = ( nodes as Array<Node> ).reduce( ( groups: Array<{ breakAttributes: boolean; nodes: Array<Node> }>, node ) => {\n\t\t\tconst lastGroup = groups[ groups.length - 1 ];\n\n\t\t\t// Break attributes on nodes that do exist in the model tree so they can have attributes, other elements\n\t\t\t// can't have an attribute in model and won't get wrapped with an AttributeElement while down-casted.\n\t\t\tconst breakAttributes = !node.is( 'uiElement' );\n\n\t\t\tif ( !lastGroup || lastGroup.breakAttributes != breakAttributes ) {\n\t\t\t\tgroups.push( {\n\t\t\t\t\tbreakAttributes,\n\t\t\t\t\tnodes: [ node ]\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tlastGroup.nodes.push( node );\n\t\t\t}\n\n\t\t\treturn groups;\n\t\t}, [] );\n\n\t\t// Insert nodes in batches.\n\t\tlet start = null;\n\t\tlet end = position;\n\n\t\tfor ( const { nodes, breakAttributes } of nodeGroups ) {\n\t\t\tconst range = this._insertNodes( end, nodes, breakAttributes );\n\n\t\t\tif ( !start ) {\n\t\t\t\tstart = range.start;\n\t\t\t}\n\n\t\t\tend = range.end;\n\t\t}\n\n\t\t// When no nodes were inserted - return collapsed range.\n\t\tif ( !start ) {\n\t\t\treturn new Range( position );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Removes provided range from the container.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t *\n\t * @param {module:engine/view/range~Range|module:engine/view/item~Item} rangeOrItem Range to remove from container\n\t * or an {@link module:engine/view/item~Item item} to remove. If range is provided, after removing, it will be updated\n\t * to a collapsed range showing the new position.\n\t * @returns {module:engine/view/documentfragment~DocumentFragment} Document fragment containing removed nodes.\n\t */\n\tpublic remove( rangeOrItem: Range | Item ): DocumentFragment {\n\t\tconst range = rangeOrItem instanceof Range ? rangeOrItem : Range._createOn( rangeOrItem );\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// If range is collapsed - nothing to remove.\n\t\tif ( range.isCollapsed ) {\n\t\t\treturn new DocumentFragment( this.document );\n\t\t}\n\n\t\t// Break attributes at range start and end.\n\t\tconst { start: breakStart, end: breakEnd } = this._breakAttributesRange( range, true );\n\t\tconst parentContainer = breakStart.parent as Element;\n\n\t\tconst count = breakEnd.offset - breakStart.offset;\n\n\t\t// Remove nodes in range.\n\t\tconst removed = parentContainer._removeChildren( breakStart.offset, count );\n\n\t\tfor ( const node of removed ) {\n\t\t\tthis._removeFromClonedElementsGroup( node );\n\t\t}\n\n\t\t// Merge after removing.\n\t\tconst mergePosition = this.mergeAttributes( breakStart );\n\t\trange.start = mergePosition;\n\t\trange.end = mergePosition.clone();\n\n\t\t// Return removed nodes.\n\t\treturn new DocumentFragment( this.document, removed );\n\t}\n\n\t/**\n\t * Removes matching elements from given range.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t *\n\t * @param {module:engine/view/range~Range} range Range to clear.\n\t * @param {module:engine/view/element~Element} element Element to remove.\n\t */\n\tpublic clear( range: Range, element: Element ): void {\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// Create walker on given range.\n\t\t// We walk backward because when we remove element during walk it modifies range end position.\n\t\tconst walker = range.getWalker( {\n\t\t\tdirection: 'backward',\n\t\t\tignoreElementEnd: true\n\t\t} );\n\n\t\t// Let's walk.\n\t\tfor ( const current of walker ) {\n\t\t\tconst item = current.item;\n\t\t\tlet rangeToRemove;\n\n\t\t\t// When current item matches to the given element.\n\t\t\tif ( item.is( 'element' ) && element.isSimilar( item ) ) {\n\t\t\t\t// Create range on this element.\n\t\t\t\trangeToRemove = Range._createOn( item );\n\t\t\t\t// When range starts inside Text or TextProxy element.\n\t\t\t} else if ( !current.nextPosition.isAfter( range.start ) && item.is( '$textProxy' ) ) {\n\t\t\t\t// We need to check if parent of this text matches to given element.\n\t\t\t\tconst parentElement = item.getAncestors().find( ancestor => {\n\t\t\t\t\treturn ancestor.is( 'element' ) && element.isSimilar( ancestor );\n\t\t\t\t} );\n\n\t\t\t\t// If it is then create range inside this element.\n\t\t\t\tif ( parentElement ) {\n\t\t\t\t\trangeToRemove = Range._createIn( parentElement as Element );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If we have found element to remove.\n\t\t\tif ( rangeToRemove ) {\n\t\t\t\t// We need to check if element range stick out of the given range and truncate if it is.\n\t\t\t\tif ( rangeToRemove.end.isAfter( range.end ) ) {\n\t\t\t\t\trangeToRemove.end = range.end;\n\t\t\t\t}\n\n\t\t\t\tif ( rangeToRemove.start.isBefore( range.start ) ) {\n\t\t\t\t\trangeToRemove.start = range.start;\n\t\t\t\t}\n\n\t\t\t\t// At the end we remove range with found element.\n\t\t\t\tthis.remove( rangeToRemove );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Moves nodes from provided range to target position.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t *\n\t * @param {module:engine/view/range~Range} sourceRange Range containing nodes to move.\n\t * @param {module:engine/view/position~Position} targetPosition Position to insert.\n\t * @returns {module:engine/view/range~Range} Range in target container. Inserted nodes are placed between\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions.\n\t */\n\tpublic move( sourceRange: Range, targetPosition: Position ): Range {\n\t\tlet nodes;\n\n\t\tif ( targetPosition.isAfter( sourceRange.end ) ) {\n\t\t\ttargetPosition = this._breakAttributes( targetPosition, true );\n\n\t\t\tconst parent = targetPosition.parent as Element;\n\t\t\tconst countBefore = parent.childCount;\n\n\t\t\tsourceRange = this._breakAttributesRange( sourceRange, true );\n\n\t\t\tnodes = this.remove( sourceRange );\n\n\t\t\ttargetPosition.offset += ( parent.childCount - countBefore );\n\t\t} else {\n\t\t\tnodes = this.remove( sourceRange );\n\t\t}\n\n\t\treturn this.insert( targetPosition, nodes );\n\t}\n\n\t/**\n\t * Wraps elements within range with provided {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t * If a collapsed range is provided, it will be wrapped only if it is equal to view selection.\n\t *\n\t * If a collapsed range was passed and is same as selection, the selection\n\t * will be moved to the inside of the wrapped attribute element.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-invalid-range-container`\n\t * when {@link module:engine/view/range~Range#start}\n\t * and {@link module:engine/view/range~Range#end} positions are not placed inside same parent container.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-invalid-attribute` when passed attribute element is not\n\t * an instance of {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-nonselection-collapsed-range` when passed range\n\t * is collapsed and different than view selection.\n\t *\n\t * @param {module:engine/view/range~Range} range Range to wrap.\n\t * @param {module:engine/view/attributeelement~AttributeElement} attribute Attribute element to use as wrapper.\n\t * @returns {module:engine/view/range~Range} range Range after wrapping, spanning over wrapping attribute element.\n\t */\n\tpublic wrap( range: Range, attribute: AttributeElement ): Range {\n\t\tif ( !( attribute instanceof AttributeElement ) ) {\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-writer-wrap-invalid-attribute',\n\t\t\t\tthis.document\n\t\t\t);\n\t\t}\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\tif ( !range.isCollapsed ) {\n\t\t\t// Non-collapsed range. Wrap it with the attribute element.\n\t\t\treturn this._wrapRange( range, attribute );\n\t\t} else {\n\t\t\t// Collapsed range. Wrap position.\n\t\t\tlet position = range.start;\n\n\t\t\tif ( position.parent.is( 'element' ) && !_hasNonUiChildren( position.parent ) ) {\n\t\t\t\tposition = position.getLastMatchingPosition( value => value.item.is( 'uiElement' ) );\n\t\t\t}\n\n\t\t\tposition = this._wrapPosition( position, attribute );\n\t\t\tconst viewSelection = this.document.selection;\n\n\t\t\t// If wrapping position is equal to view selection, move view selection inside wrapping attribute element.\n\t\t\tif ( viewSelection.isCollapsed && viewSelection.getFirstPosition()!.isEqual( range.start ) ) {\n\t\t\t\tthis.setSelection( position );\n\t\t\t}\n\n\t\t\treturn new Range( position );\n\t\t}\n\t}\n\n\t/**\n\t * Unwraps nodes within provided range from attribute element.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t *\n\t * @param {module:engine/view/range~Range} range\n\t * @param {module:engine/view/attributeelement~AttributeElement} attribute\n\t */\n\tpublic unwrap( range: Range, attribute: AttributeElement ): Range {\n\t\tif ( !( attribute instanceof AttributeElement ) ) {\n\t\t\t/**\n\t\t\t * The `attribute` passed to {@link module:engine/view/downcastwriter~DowncastWriter#unwrap `DowncastWriter#unwrap()`}\n\t\t\t * must be an instance of {@link module:engine/view/attributeelement~AttributeElement `AttributeElement`}.\n\t\t\t *\n\t\t\t * @error view-writer-unwrap-invalid-attribute\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-writer-unwrap-invalid-attribute',\n\t\t\t\tthis.document\n\t\t\t);\n\t\t}\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// If range is collapsed - nothing to unwrap.\n\t\tif ( range.isCollapsed ) {\n\t\t\treturn range;\n\t\t}\n\n\t\t// Break attributes at range start and end.\n\t\tconst { start: breakStart, end: breakEnd } = this._breakAttributesRange( range, true );\n\t\tconst parentContainer = breakStart.parent as Element;\n\n\t\t// Unwrap children located between break points.\n\t\tconst newRange = this._unwrapChildren( parentContainer, breakStart.offset, breakEnd.offset, attribute );\n\n\t\t// Merge attributes at the both ends and return a new range.\n\t\tconst start = this.mergeAttributes( newRange.start );\n\n\t\t// If start position was merged - move end position back.\n\t\tif ( !start.isEqual( newRange.start ) ) {\n\t\t\tnewRange.end.offset--;\n\t\t}\n\n\t\tconst end = this.mergeAttributes( newRange.end );\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Renames element by creating a copy of renamed element but with changed name and then moving contents of the\n\t * old element to the new one. Keep in mind that this will invalidate all {@link module:engine/view/position~Position positions} which\n\t * has renamed element as {@link module:engine/view/position~Position#parent a parent}.\n\t *\n\t * New element has to be created because `Element#tagName` property in DOM is readonly.\n\t *\n\t * Since this function creates a new element and removes the given one, the new element is returned to keep reference.\n\t *\n\t * @param {String} newName New name for element.\n\t * @param {module:engine/view/containerelement~ContainerElement} viewElement Element to be renamed.\n\t * @returns {module:engine/view/containerelement~ContainerElement} Element created due to rename.\n\t */\n\tpublic rename( newName: string, viewElement: ContainerElement ): ContainerElement {\n\t\tconst newElement = new ContainerElement( this.document, newName, viewElement.getAttributes() );\n\n\t\tthis.insert( Position._createAfter( viewElement ), newElement );\n\t\tthis.move( Range._createIn( viewElement ), Position._createAt( newElement, 0 ) );\n\t\tthis.remove( Range._createOn( viewElement ) );\n\n\t\treturn newElement;\n\t}\n\n\t/**\n\t * Cleans up memory by removing obsolete cloned elements group from the writer.\n\t *\n\t * Should be used whenever all {@link module:engine/view/attributeelement~AttributeElement attribute elements}\n\t * with the same {@link module:engine/view/attributeelement~AttributeElement#id id} are going to be removed from the view and\n\t * the group will no longer be needed.\n\t *\n\t * Cloned elements group are not removed automatically in case if the group is still needed after all its elements\n\t * were removed from the view.\n\t *\n\t * Keep in mind that group names are equal to the `id` property of the attribute element.\n\t *\n\t * @param {String} groupName Name of the group to clear.\n\t */\n\tpublic clearClonedElementsGroup( groupName: string ): void {\n\t\tthis._cloneGroups.delete( groupName );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link #createPositionBefore},\n\t * * {@link #createPositionAfter},\n\t *\n\t * @param {module:engine/view/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/view/item~Item view item}.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionAt( itemOrPosition: Item | Position, offset?: number | 'before' | 'after' | 'end' ): Position {\n\t\treturn Position._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @param {module:engine/view/item~Item} item View item after which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn Position._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @param {module:engine/view/item~Item} item View item before which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn Position._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** This factory method creates its own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param {module:engine/view/position~Position} start Start position.\n\t * @param {module:engine/view/position~Position} [end] End position. If not set, range will be collapsed at `start` position.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRange( ...args: ConstructorParameters<typeof Range> ): Range {\n\t\treturn new Range( ...args );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t *\n\t * @param {module:engine/view/item~Item} item\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRangeOn( item: Item ): Range {\n\t\treturn Range._createOn( item );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @param {module:engine/view/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRangeIn( element: Element | DocumentFragment ): Range {\n\t\treturn Range._createIn( element );\n\t}\n\n\t/**\n\t * Creates new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * \t\t// Creates empty selection without ranges.\n\t *\t\tconst selection = writer.createSelection();\n\t *\n\t *\t\t// Creates selection at the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tconst selection = writer.createSelection( range );\n\t *\n\t *\t\t// Creates selection at the given ranges\n\t * \t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\tconst selection = writer.createSelection( ranges );\n\t *\n\t *\t\t// Creates selection from the other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tconst selection = writer.createSelection( otherSelection );\n\t *\n\t *\t\t// Creates selection from the document selection.\n\t *\t\tconst selection = writer.createSelection( editor.editing.view.document.selection );\n\t *\n\t * \t\t// Creates selection at the given position.\n\t *\t\tconst position = writer.createPositionFromPath( root, path );\n\t *\t\tconst selection = writer.createSelection( position );\n\t *\n\t *\t\t// Creates collapsed selection at the position of given item and offset.\n\t *\t\tconst paragraph = writer.createContainerElement( 'p' );\n\t *\t\tconst selection = writer.createSelection( paragraph, offset );\n\t *\n\t *\t\t// Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t *\t\t// first child of that element and ends after the last child of that element.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t *\t\t// Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t *\t\t// just after the item.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'on' );\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Creates backward selection.\n\t *\t\tconst selection = writer.createSelection( range, { backward: true } );\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t *\t\t// Creates fake selection with label.\n\t *\t\tconst selection = writer.createSelection( range, { fake: true, label: 'foo' } );\n\t *\n\t * @param {module:engine/view/selection~Selectable} [selectable=null]\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Offset or place when selectable is an `Item`.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t * @returns {module:engine/view/selection~Selection}\n\t */\n\tpublic createSelection( ...args: ConstructorParameters<typeof Selection> ): Selection {\n\t\treturn new Selection( ...args );\n\t}\n\n\t/**\n\t * Creates placeholders for child elements of the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n\t * `elementToStructure()`} conversion helper.\n\t *\n\t *\t\tconst viewSlot = conversionApi.writer.createSlot();\n\t *\t\tconst viewPosition = conversionApi.writer.createPositionAt( viewElement, 0 );\n\t *\n\t *\t\tconversionApi.writer.insert( viewPosition, viewSlot );\n\t *\n\t * It could be filtered down to a specific subset of children (only `<foo>` model elements in this case):\n\t *\n\t *\t\tconst viewSlot = conversionApi.writer.createSlot( node => node.is( 'element', 'foo' ) );\n\t *\t\tconst viewPosition = conversionApi.writer.createPositionAt( viewElement, 0 );\n\t *\n\t *\t\tconversionApi.writer.insert( viewPosition, viewSlot );\n\t *\n\t * While providing a filtered slot, make sure to provide slots for all child nodes. A single node can not be downcasted into\n\t * multiple slots.\n\t *\n\t * **Note**: You should not change the order of nodes. View elements should be in the same order as model nodes.\n\t *\n\t * @param {'children'|module:engine/conversion/downcasthelpers~SlotFilter} [modeOrFilter='children'] The filter for child nodes.\n\t * @returns {module:engine/view/element~Element} The slot element to be placed in to the view structure while processing\n\t * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure `elementToStructure()`}.\n\t */\n\tpublic createSlot( modeOrFilter: 'children' | SlotFilter ): Element {\n\t\tif ( !this._slotFactory ) {\n\t\t\t/**\n\t\t\t * The `createSlot()` method is only allowed inside the `elementToStructure` downcast helper callback.\n\t\t\t *\n\t\t\t * @error view-writer-invalid-create-slot-context\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-invalid-create-slot-context', this.document );\n\t\t}\n\n\t\treturn this._slotFactory( this, modeOrFilter );\n\t}\n\n\t/**\n\t * Registers a slot factory.\n\t *\n\t * @protected\n\t * @param {Function} slotFactory The slot factory.\n\t */\n\tpublic _registerSlotFactory( slotFactory: ( writer: DowncastWriter, modeOrFilter: string | SlotFilter ) => Element ): void {\n\t\tthis._slotFactory = slotFactory;\n\t}\n\n\t/**\n\t * Clears the registered slot factory.\n\t *\n\t * @protected\n\t */\n\tpublic _clearSlotFactory(): void {\n\t\tthis._slotFactory = null;\n\t}\n\n\t/**\n\t * Inserts a node or nodes at the specified position. Takes care of breaking attributes before insertion\n\t * and merging them afterwards if requested by the breakAttributes param.\n\t *\n\t * @private\n\t * @param {module:engine/view/position~Position} position Insertion position.\n\t * @param {module:engine/view/text~Text|module:engine/view/attributeelement~AttributeElement|\n\t * module:engine/view/containerelement~ContainerElement|module:engine/view/emptyelement~EmptyElement|\n\t * module:engine/view/rawelement~RawElement|module:engine/view/uielement~UIElement|\n\t * Iterable.<module:engine/view/text~Text|\n\t * module:engine/view/attributeelement~AttributeElement|module:engine/view/containerelement~ContainerElement|\n\t * module:engine/view/emptyelement~EmptyElement|module:engine/view/rawelement~RawElement|\n\t * module:engine/view/uielement~UIElement>} nodes Node or nodes to insert.\n\t * @param {Boolean} breakAttributes Whether attributes should be broken.\n\t * @returns {module:engine/view/range~Range} Range around inserted nodes.\n\t */\n\tprivate _insertNodes( position: Position, nodes: Iterable<Node>, breakAttributes: boolean ): Range {\n\t\tlet parentElement;\n\n\t\t// Break attributes on nodes that do exist in the model tree so they can have attributes, other elements\n\t\t// can't have an attribute in model and won't get wrapped with an AttributeElement while down-casted.\n\t\tif ( breakAttributes ) {\n\t\t\tparentElement = getParentContainer( position );\n\t\t} else {\n\t\t\tparentElement = position.parent.is( '$text' ) ? position.parent.parent : position.parent;\n\t\t}\n\n\t\tif ( !parentElement ) {\n\t\t\t/**\n\t\t\t * Position's parent container cannot be found.\n\t\t\t *\n\t\t\t * @error view-writer-invalid-position-container\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-writer-invalid-position-container',\n\t\t\t\tthis.document\n\t\t\t);\n\t\t}\n\n\t\tlet insertionPosition;\n\n\t\tif ( breakAttributes ) {\n\t\t\tinsertionPosition = this._breakAttributes( position, true );\n\t\t} else {\n\t\t\tinsertionPosition = position.parent.is( '$text' ) ? breakTextNode( position ) : position;\n\t\t}\n\n\t\tconst length = ( parentElement as Element | DocumentFragment )._insertChild( insertionPosition.offset, nodes );\n\n\t\tfor ( const node of nodes ) {\n\t\t\tthis._addToClonedElementsGroup( node );\n\t\t}\n\n\t\tconst endPosition = insertionPosition.getShiftedBy( length );\n\t\tconst start = this.mergeAttributes( insertionPosition );\n\n\t\t// If start position was merged - move end position.\n\t\tif ( !start.isEqual( insertionPosition ) ) {\n\t\t\tendPosition.offset--;\n\t\t}\n\n\t\tconst end = this.mergeAttributes( endPosition );\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Wraps children with provided `wrapElement`. Only children contained in `parent` element between\n\t * `startOffset` and `endOffset` will be wrapped.\n\t *\n\t * @private\n\t * @param {module:engine/view/element~Element} parent\n\t * @param {Number} startOffset\n\t * @param {Number} endOffset\n\t * @param {module:engine/view/element~Element} wrapElement\n\t */\n\tprivate _wrapChildren( parent: Element, startOffset: number, endOffset: number, wrapElement: AttributeElement ) {\n\t\tlet i = startOffset;\n\t\tconst wrapPositions: Array<Position> = [];\n\n\t\twhile ( i < endOffset ) {\n\t\t\tconst child = parent.getChild( i )!;\n\t\t\tconst isText = child.is( '$text' );\n\t\t\tconst isAttribute = child.is( 'attributeElement' );\n\n\t\t\t//\n\t\t\t// (In all examples, assume that `wrapElement` is `<span class=\"foo\">` element.)\n\t\t\t//\n\t\t\t// Check if `wrapElement` can be joined with the wrapped element. One of requirements is having same name.\n\t\t\t// If possible, join elements.\n\t\t\t//\n\t\t\t// <p><span class=\"bar\">abc</span></p>  -->  <p><span class=\"foo bar\">abc</span></p>\n\t\t\t//\n\t\t\tif ( isAttribute && this._wrapAttributeElement( wrapElement, child ) ) {\n\t\t\t\twrapPositions.push( new Position( parent, i ) );\n\t\t\t}\n\t\t\t//\n\t\t\t// Wrap the child if it is not an attribute element or if it is an attribute element that should be inside\n\t\t\t// `wrapElement` (due to priority).\n\t\t\t//\n\t\t\t// <p>abc</p>                   -->  <p><span class=\"foo\">abc</span></p>\n\t\t\t// <p><strong>abc</strong></p>  -->  <p><span class=\"foo\"><strong>abc</strong></span></p>\n\t\t\telse if ( isText || !isAttribute || shouldABeOutsideB( wrapElement, child ) ) {\n\t\t\t\t// Clone attribute.\n\t\t\t\tconst newAttribute = wrapElement._clone();\n\n\t\t\t\t// Wrap current node with new attribute.\n\t\t\t\tchild._remove();\n\t\t\t\tnewAttribute._appendChild( child );\n\n\t\t\t\tparent._insertChild( i, newAttribute );\n\t\t\t\tthis._addToClonedElementsGroup( newAttribute );\n\n\t\t\t\twrapPositions.push( new Position( parent, i ) );\n\t\t\t}\n\t\t\t//\n\t\t\t// If other nested attribute is found and it wasn't wrapped (see above), continue wrapping inside it.\n\t\t\t//\n\t\t\t// <p><a href=\"foo.html\">abc</a></p>  -->  <p><a href=\"foo.html\"><span class=\"foo\">abc</span></a></p>\n\t\t\t//\n\t\t\telse /* if ( isAttribute ) */ {\n\t\t\t\tthis._wrapChildren( child, 0, child.childCount, wrapElement );\n\t\t\t}\n\n\t\t\ti++;\n\t\t}\n\n\t\t// Merge at each wrap.\n\t\tlet offsetChange = 0;\n\n\t\tfor ( const position of wrapPositions ) {\n\t\t\tposition.offset -= offsetChange;\n\n\t\t\t// Do not merge with elements outside selected children.\n\t\t\tif ( position.offset == startOffset ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst newPosition = this.mergeAttributes( position );\n\n\t\t\t// If nodes were merged - other merge offsets will change.\n\t\t\tif ( !newPosition.isEqual( position ) ) {\n\t\t\t\toffsetChange++;\n\t\t\t\tendOffset--;\n\t\t\t}\n\t\t}\n\n\t\treturn Range._createFromParentsAndOffsets( parent, startOffset, parent, endOffset );\n\t}\n\n\t/**\n\t * Unwraps children from provided `unwrapElement`. Only children contained in `parent` element between\n\t * `startOffset` and `endOffset` will be unwrapped.\n\t *\n\t * @private\n\t * @param {module:engine/view/element~Element} parent\n\t * @param {Number} startOffset\n\t * @param {Number} endOffset\n\t * @param {module:engine/view/element~Element} unwrapElement\n\t */\n\tprivate _unwrapChildren( parent: Element, startOffset: number, endOffset: number, unwrapElement: AttributeElement ) {\n\t\tlet i = startOffset;\n\t\tconst unwrapPositions: Array<Position> = [];\n\n\t\t// Iterate over each element between provided offsets inside parent.\n\t\t// We don't use tree walker or range iterator because we will be removing and merging potentially multiple nodes,\n\t\t// so it could get messy. It is safer to it manually in this case.\n\t\twhile ( i < endOffset ) {\n\t\t\tconst child = parent.getChild( i )!;\n\n\t\t\t// Skip all text nodes. There should be no container element's here either.\n\t\t\tif ( !child.is( 'attributeElement' ) ) {\n\t\t\t\ti++;\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t//\n\t\t\t// (In all examples, assume that `unwrapElement` is `<span class=\"foo\">` element.)\n\t\t\t//\n\t\t\t// If the child is similar to the given attribute element, unwrap it - it will be completely removed.\n\t\t\t//\n\t\t\t// <p><span class=\"foo\">abc</span>xyz</p>  -->  <p>abcxyz</p>\n\t\t\t//\n\t\t\tif ( child.isSimilar( unwrapElement ) ) {\n\t\t\t\tconst unwrapped = child.getChildren();\n\t\t\t\tconst count = child.childCount;\n\n\t\t\t\t// Replace wrapper element with its children\n\t\t\t\tchild._remove();\n\t\t\t\tparent._insertChild( i, unwrapped );\n\n\t\t\t\tthis._removeFromClonedElementsGroup( child );\n\n\t\t\t\t// Save start and end position of moved items.\n\t\t\t\tunwrapPositions.push(\n\t\t\t\t\tnew Position( parent, i ),\n\t\t\t\t\tnew Position( parent, i + count )\n\t\t\t\t);\n\n\t\t\t\t// Skip elements that were unwrapped. Assuming there won't be another element to unwrap in child elements.\n\t\t\t\ti += count;\n\t\t\t\tendOffset += count - 1;\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t//\n\t\t\t// If the child is not similar but is an attribute element, try partial unwrapping - remove the same attributes/styles/classes.\n\t\t\t// Partial unwrapping will happen only if the elements have the same name.\n\t\t\t//\n\t\t\t// <p><span class=\"foo bar\">abc</span>xyz</p>  -->  <p><span class=\"bar\">abc</span>xyz</p>\n\t\t\t// <p><i class=\"foo\">abc</i>xyz</p>            -->  <p><i class=\"foo\">abc</i>xyz</p>\n\t\t\t//\n\t\t\tif ( this._unwrapAttributeElement( unwrapElement, child ) ) {\n\t\t\t\tunwrapPositions.push(\n\t\t\t\t\tnew Position( parent, i ),\n\t\t\t\t\tnew Position( parent, i + 1 )\n\t\t\t\t);\n\n\t\t\t\ti++;\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t//\n\t\t\t// If other nested attribute is found, look through it's children for elements to unwrap.\n\t\t\t//\n\t\t\t// <p><i><span class=\"foo\">abc</span></i><p>  -->  <p><i>abc</i><p>\n\t\t\t//\n\t\t\tthis._unwrapChildren( child, 0, child.childCount, unwrapElement );\n\n\t\t\ti++;\n\t\t}\n\n\t\t// Merge at each unwrap.\n\t\tlet offsetChange = 0;\n\n\t\tfor ( const position of unwrapPositions ) {\n\t\t\tposition.offset -= offsetChange;\n\n\t\t\t// Do not merge with elements outside selected children.\n\t\t\tif ( position.offset == startOffset || position.offset == endOffset ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst newPosition = this.mergeAttributes( position );\n\n\t\t\t// If nodes were merged - other merge offsets will change.\n\t\t\tif ( !newPosition.isEqual( position ) ) {\n\t\t\t\toffsetChange++;\n\t\t\t\tendOffset--;\n\t\t\t}\n\t\t}\n\n\t\treturn Range._createFromParentsAndOffsets( parent, startOffset, parent, endOffset );\n\t}\n\n\t/**\n\t * Helper function for `view.writer.wrap`. Wraps range with provided attribute element.\n\t * This method will also merge newly added attribute element with its siblings whenever possible.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-invalid-attribute` when passed attribute element is not\n\t * an instance of {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t *\n\t * @private\n\t * @param {module:engine/view/range~Range} range\n\t * @param {module:engine/view/attributeelement~AttributeElement} attribute\n\t * @returns {module:engine/view/range~Range} New range after wrapping, spanning over wrapping attribute element.\n\t */\n\tprivate _wrapRange( range: Range, attribute: AttributeElement ): Range {\n\t\t// Break attributes at range start and end.\n\t\tconst { start: breakStart, end: breakEnd } = this._breakAttributesRange( range, true );\n\t\tconst parentContainer = breakStart.parent as Element;\n\n\t\t// Wrap all children with attribute.\n\t\tconst newRange = this._wrapChildren( parentContainer, breakStart.offset, breakEnd.offset, attribute );\n\n\t\t// Merge attributes at the both ends and return a new range.\n\t\tconst start = this.mergeAttributes( newRange.start );\n\n\t\t// If start position was merged - move end position back.\n\t\tif ( !start.isEqual( newRange.start ) ) {\n\t\t\tnewRange.end.offset--;\n\t\t}\n\t\tconst end = this.mergeAttributes( newRange.end );\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Helper function for {@link #wrap}. Wraps position with provided attribute element.\n\t * This method will also merge newly added attribute element with its siblings whenever possible.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-invalid-attribute` when passed attribute element is not\n\t * an instance of {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t *\n\t * @private\n\t * @param {module:engine/view/position~Position} position\n\t * @param {module:engine/view/attributeelement~AttributeElement} attribute\n\t * @returns {module:engine/view/position~Position} New position after wrapping.\n\t */\n\tprivate _wrapPosition( position: Position, attribute: AttributeElement ): Position {\n\t\t// Return same position when trying to wrap with attribute similar to position parent.\n\t\tif ( attribute.isSimilar( position.parent as any ) ) {\n\t\t\treturn movePositionToTextNode( position.clone() );\n\t\t}\n\n\t\t// When position is inside text node - break it and place new position between two text nodes.\n\t\tif ( position.parent.is( '$text' ) ) {\n\t\t\tposition = breakTextNode( position );\n\t\t}\n\n\t\t// Create fake element that will represent position, and will not be merged with other attributes.\n\t\tconst fakeElement = this.createAttributeElement( '_wrapPosition-fake-element' );\n\t\t( fakeElement as any )._priority = Number.POSITIVE_INFINITY;\n\t\tfakeElement.isSimilar = () => false;\n\n\t\t// Insert fake element in position location.\n\t\t( position.parent as Element )._insertChild( position.offset, fakeElement );\n\n\t\t// Range around inserted fake attribute element.\n\t\tconst wrapRange = new Range( position, position.getShiftedBy( 1 ) );\n\n\t\t// Wrap fake element with attribute (it will also merge if possible).\n\t\tthis.wrap( wrapRange, attribute );\n\n\t\t// Remove fake element and place new position there.\n\t\tconst newPosition = new Position( fakeElement.parent!, fakeElement.index! );\n\t\tfakeElement._remove();\n\n\t\t// If position is placed between text nodes - merge them and return position inside.\n\t\tconst nodeBefore = newPosition.nodeBefore;\n\t\tconst nodeAfter = newPosition.nodeAfter;\n\n\t\tif ( nodeBefore instanceof Text && nodeAfter instanceof Text ) {\n\t\t\treturn mergeTextNodes( nodeBefore, nodeAfter );\n\t\t}\n\n\t\t// If position is next to text node - move position inside.\n\t\treturn movePositionToTextNode( newPosition );\n\t}\n\n\t/**\n\t * \tWraps one {@link module:engine/view/attributeelement~AttributeElement AttributeElement} into another by\n\t * \tmerging them if possible. When merging is possible - all attributes, styles and classes are moved from wrapper\n\t * \telement to element being wrapped.\n\t *\n\t * \t@private\n\t * \t@param {module:engine/view/attributeelement~AttributeElement} wrapper Wrapper AttributeElement.\n\t * \t@param {module:engine/view/attributeelement~AttributeElement} toWrap AttributeElement to wrap using wrapper element.\n\t * \t@returns {Boolean} Returns `true` if elements are merged.\n\t */\n\tprivate _wrapAttributeElement( wrapper: AttributeElement, toWrap: AttributeElement ): boolean {\n\t\tif ( !canBeJoined( wrapper, toWrap ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Can't merge if name or priority differs.\n\t\tif ( wrapper.name !== toWrap.name || wrapper.priority !== toWrap.priority ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if attributes can be merged.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If some attributes are different we cannot wrap.\n\t\t\tif ( toWrap.hasAttribute( key ) && toWrap.getAttribute( key ) !== wrapper.getAttribute( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if styles can be merged.\n\t\tfor ( const key of wrapper.getStyleNames() ) {\n\t\t\tif ( toWrap.hasStyle( key ) && toWrap.getStyle( key ) !== wrapper.getStyle( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Move all attributes/classes/styles from wrapper to wrapped AttributeElement.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Move only these attributes that are not present - other are similar.\n\t\t\tif ( !toWrap.hasAttribute( key ) ) {\n\t\t\t\tthis.setAttribute( key, wrapper.getAttribute( key )!, toWrap );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const key of wrapper.getStyleNames() ) {\n\t\t\tif ( !toWrap.hasStyle( key ) ) {\n\t\t\t\tthis.setStyle( key, wrapper.getStyle( key )!, toWrap );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const key of wrapper.getClassNames() ) {\n\t\t\tif ( !toWrap.hasClass( key ) ) {\n\t\t\t\tthis.addClass( key, toWrap );\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Unwraps {@link module:engine/view/attributeelement~AttributeElement AttributeElement} from another by removing\n\t * corresponding attributes, classes and styles. All attributes, classes and styles from wrapper should be present\n\t * inside element being unwrapped.\n\t *\n\t * @private\n\t * @param {module:engine/view/attributeelement~AttributeElement} wrapper Wrapper AttributeElement.\n\t * @param {module:engine/view/attributeelement~AttributeElement} toUnwrap AttributeElement to unwrap using wrapper element.\n\t * @returns {Boolean} Returns `true` if elements are unwrapped.\n\t **/\n\tprivate _unwrapAttributeElement( wrapper: AttributeElement, toUnwrap: AttributeElement ): boolean {\n\t\tif ( !canBeJoined( wrapper, toUnwrap ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Can't unwrap if name or priority differs.\n\t\tif ( wrapper.name !== toUnwrap.name || wrapper.priority !== toUnwrap.priority ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if AttributeElement has all wrapper attributes.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If some attributes are missing or different we cannot unwrap.\n\t\t\tif ( !toUnwrap.hasAttribute( key ) || toUnwrap.getAttribute( key ) !== wrapper.getAttribute( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if AttributeElement has all wrapper classes.\n\t\tif ( !toUnwrap.hasClass( ...wrapper.getClassNames() ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if AttributeElement has all wrapper styles.\n\t\tfor ( const key of wrapper.getStyleNames() ) {\n\t\t\t// If some styles are missing or different we cannot unwrap.\n\t\t\tif ( !toUnwrap.hasStyle( key ) || toUnwrap.getStyle( key ) !== wrapper.getStyle( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Remove all wrapper's attributes from unwrapped element.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tthis.removeAttribute( key, toUnwrap );\n\t\t}\n\n\t\t// Remove all wrapper's classes from unwrapped element.\n\t\tthis.removeClass( Array.from( wrapper.getClassNames() ), toUnwrap );\n\n\t\t// Remove all wrapper's styles from unwrapped element.\n\t\tthis.removeStyle( Array.from( wrapper.getStyleNames() ), toUnwrap );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Helper function used by other `DowncastWriter` methods. Breaks attribute elements at the boundaries of given range.\n\t *\n\t * @private\n\t * @param {module:engine/view/range~Range} range Range which `start` and `end` positions will be used to break attributes.\n\t * @param {Boolean} [forceSplitText=false] If set to `true`, will break text nodes even if they are directly in container element.\n\t * This behavior will result in incorrect view state, but is needed by other view writing methods which then fixes view state.\n\t * @returns {module:engine/view/range~Range} New range with located at break positions.\n\t */\n\tprivate _breakAttributesRange( range: Range, forceSplitText: boolean = false ) {\n\t\tconst rangeStart = range.start;\n\t\tconst rangeEnd = range.end;\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// Break at the collapsed position. Return new collapsed range.\n\t\tif ( range.isCollapsed ) {\n\t\t\tconst position = this._breakAttributes( range.start, forceSplitText );\n\n\t\t\treturn new Range( position, position );\n\t\t}\n\n\t\tconst breakEnd = this._breakAttributes( rangeEnd, forceSplitText );\n\t\tconst count = ( breakEnd.parent as Element ).childCount;\n\t\tconst breakStart = this._breakAttributes( rangeStart, forceSplitText );\n\n\t\t// Calculate new break end offset.\n\t\tbreakEnd.offset += ( breakEnd.parent as Element ).childCount - count;\n\n\t\treturn new Range( breakStart, breakEnd );\n\t}\n\n\t/**\n\t * Helper function used by other `DowncastWriter` methods. Breaks attribute elements at given position.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-cannot-break-empty-element` when break position\n\t * is placed inside {@link module:engine/view/emptyelement~EmptyElement EmptyElement}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-cannot-break-ui-element` when break position\n\t * is placed inside {@link module:engine/view/uielement~UIElement UIElement}.\n\t *\n\t * @private\n\t * @param {module:engine/view/position~Position} position Position where to break attributes.\n\t * @param {Boolean} [forceSplitText=false] If set to `true`, will break text nodes even if they are directly in container element.\n\t * This behavior will result in incorrect view state, but is needed by other view writing methods which then fixes view state.\n\t * @returns {module:engine/view/position~Position} New position after breaking the attributes.\n\t */\n\tprivate _breakAttributes( position: Position, forceSplitText: boolean = false ): Position {\n\t\tconst positionOffset = position.offset;\n\t\tconst positionParent = position.parent;\n\n\t\t// If position is placed inside EmptyElement - throw an exception as we cannot break inside.\n\t\tif ( position.parent.is( 'emptyElement' ) ) {\n\t\t\t/**\n\t\t\t * Cannot break an `EmptyElement` instance.\n\t\t\t *\n\t\t\t * This error is thrown if\n\t\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes `DowncastWriter#breakAttributes()`}\n\t\t\t * was executed in an incorrect position.\n\t\t\t *\n\t\t\t * @error view-writer-cannot-break-empty-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-cannot-break-empty-element', this.document );\n\t\t}\n\n\t\t// If position is placed inside UIElement - throw an exception as we cannot break inside.\n\t\tif ( position.parent.is( 'uiElement' ) ) {\n\t\t\t/**\n\t\t\t * Cannot break a `UIElement` instance.\n\t\t\t *\n\t\t\t * This error is thrown if\n\t\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes `DowncastWriter#breakAttributes()`}\n\t\t\t * was executed in an incorrect position.\n\t\t\t *\n\t\t\t * @error view-writer-cannot-break-ui-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-cannot-break-ui-element', this.document );\n\t\t}\n\n\t\t// If position is placed inside RawElement - throw an exception as we cannot break inside.\n\t\tif ( position.parent.is( 'rawElement' ) ) {\n\t\t\t/**\n\t\t\t * Cannot break a `RawElement` instance.\n\t\t\t *\n\t\t\t * This error is thrown if\n\t\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes `DowncastWriter#breakAttributes()`}\n\t\t\t * was executed in an incorrect position.\n\t\t\t *\n\t\t\t * @error view-writer-cannot-break-raw-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-cannot-break-raw-element', this.document );\n\t\t}\n\n\t\t// There are no attributes to break and text nodes breaking is not forced.\n\t\tif ( !forceSplitText && positionParent.is( '$text' ) && isContainerOrFragment( positionParent.parent! ) ) {\n\t\t\treturn position.clone();\n\t\t}\n\n\t\t// Position's parent is container, so no attributes to break.\n\t\tif ( isContainerOrFragment( positionParent ) ) {\n\t\t\treturn position.clone();\n\t\t}\n\n\t\t// Break text and start again in new position.\n\t\tif ( positionParent.is( '$text' ) ) {\n\t\t\treturn this._breakAttributes( breakTextNode( position ), forceSplitText );\n\t\t}\n\n\t\tconst length = ( positionParent as any ).childCount;\n\n\t\t// <p>foo<b><u>bar{}</u></b></p>\n\t\t// <p>foo<b><u>bar</u>[]</b></p>\n\t\t// <p>foo<b><u>bar</u></b>[]</p>\n\t\tif ( positionOffset == length ) {\n\t\t\tconst newPosition = new Position( positionParent.parent as any, ( positionParent as any ).index + 1 );\n\n\t\t\treturn this._breakAttributes( newPosition, forceSplitText );\n\t\t} else {\n\t\t\t// <p>foo<b><u>{}bar</u></b></p>\n\t\t\t// <p>foo<b>[]<u>bar</u></b></p>\n\t\t\t// <p>foo{}<b><u>bar</u></b></p>\n\t\t\tif ( positionOffset === 0 ) {\n\t\t\t\tconst newPosition = new Position( positionParent.parent as Element, ( positionParent as any ).index );\n\n\t\t\t\treturn this._breakAttributes( newPosition, forceSplitText );\n\t\t\t}\n\t\t\t// <p>foo<b><u>b{}ar</u></b></p>\n\t\t\t// <p>foo<b><u>b[]ar</u></b></p>\n\t\t\t// <p>foo<b><u>b</u>[]<u>ar</u></b></p>\n\t\t\t// <p>foo<b><u>b</u></b>[]<b><u>ar</u></b></p>\n\t\t\telse {\n\t\t\t\tconst offsetAfter = ( positionParent as any ).index + 1;\n\n\t\t\t\t// Break element.\n\t\t\t\tconst clonedNode = ( positionParent as any )._clone();\n\n\t\t\t\t// Insert cloned node to position's parent node.\n\t\t\t\t( positionParent.parent as any )._insertChild( offsetAfter, clonedNode );\n\t\t\t\tthis._addToClonedElementsGroup( clonedNode );\n\n\t\t\t\t// Get nodes to move.\n\t\t\t\tconst count = ( positionParent as any ).childCount - positionOffset;\n\t\t\t\tconst nodesToMove = ( positionParent as any )._removeChildren( positionOffset, count );\n\n\t\t\t\t// Move nodes to cloned node.\n\t\t\t\tclonedNode._appendChild( nodesToMove );\n\n\t\t\t\t// Create new position to work on.\n\t\t\t\tconst newPosition = new Position( ( positionParent as any ).parent, offsetAfter );\n\n\t\t\t\treturn this._breakAttributes( newPosition, forceSplitText );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Stores the information that an {@link module:engine/view/attributeelement~AttributeElement attribute element} was\n\t * added to the tree. Saves the reference to the group in the given element and updates the group, so other elements\n\t * from the group now keep a reference to the given attribute element.\n\t *\n\t * The clones group can be obtained using {@link module:engine/view/attributeelement~AttributeElement#getElementsWithSameId}.\n\t *\n\t * Does nothing if added element has no {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t *\n\t * @private\n\t * @param {module:engine/view/attributeelement~AttributeElement} element Attribute element to save.\n\t */\n\tprivate _addToClonedElementsGroup( element: Node ): void {\n\t\t// Add only if the element is in document tree.\n\t\tif ( !element.root.is( 'rootElement' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Traverse the element's children recursively to find other attribute elements that also might got inserted.\n\t\t// The loop is at the beginning so we can make fast returns later in the code.\n\t\tif ( element.is( 'element' ) ) {\n\t\t\tfor ( const child of element.getChildren() ) {\n\t\t\t\tthis._addToClonedElementsGroup( child );\n\t\t\t}\n\t\t}\n\n\t\tconst id = ( element as any ).id;\n\n\t\tif ( !id ) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet group = this._cloneGroups.get( id );\n\n\t\tif ( !group ) {\n\t\t\tgroup = new Set();\n\t\t\tthis._cloneGroups.set( id, group );\n\t\t}\n\n\t\tgroup.add( element as AttributeElement );\n\t\t( element as any )._clonesGroup = group;\n\t}\n\n\t/**\n\t * Removes all the information about the given {@link module:engine/view/attributeelement~AttributeElement attribute element}\n\t * from its clones group.\n\t *\n\t * Keep in mind, that the element will still keep a reference to the group (but the group will not keep a reference to it).\n\t * This allows to reference the whole group even if the element was already removed from the tree.\n\t *\n\t * Does nothing if the element has no {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t *\n\t * @private\n\t * @param {module:engine/view/attributeelement~AttributeElement} element Attribute element to remove.\n\t */\n\tprivate _removeFromClonedElementsGroup( element: Node ) {\n\t\t// Traverse the element's children recursively to find other attribute elements that also got removed.\n\t\t// The loop is at the beginning so we can make fast returns later in the code.\n\t\tif ( element.is( 'element' ) ) {\n\t\t\tfor ( const child of element.getChildren() ) {\n\t\t\t\tthis._removeFromClonedElementsGroup( child );\n\t\t\t}\n\t\t}\n\n\t\tconst id = ( element as any ).id;\n\n\t\tif ( !id ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst group = this._cloneGroups.get( id );\n\n\t\tif ( !group ) {\n\t\t\treturn;\n\t\t}\n\n\t\tgroup.delete( element as AttributeElement );\n\t\t// Not removing group from element on purpose!\n\t\t// If other parts of code have reference to this element, they will be able to get references to other elements from the group.\n\t}\n}\n\n// Helper function for `view.writer.wrap`. Checks if given element has any children that are not ui elements.\nfunction _hasNonUiChildren( parent: Element ): boolean {\n\treturn Array.from( parent.getChildren() ).some( child => !child.is( 'uiElement' ) );\n}\n\n/**\n * The `attribute` passed to {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#wrap()`}\n * must be an instance of {@link module:engine/view/attributeelement~AttributeElement `AttributeElement`}.\n *\n * @error view-writer-wrap-invalid-attribute\n */\n\n// Returns first parent container of specified {@link module:engine/view/position~Position Position}.\n// Position's parent node is checked as first, then next parents are checked.\n// Note that {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment} is treated like a container.\n//\n// @param {module:engine/view/position~Position} position Position used as a start point to locate parent container.\n// @returns {module:engine/view/containerelement~ContainerElement|module:engine/view/documentfragment~DocumentFragment|undefined}\n// Parent container element or `undefined` if container is not found.\nfunction getParentContainer( position: Position ): ContainerElement | DocumentFragment | undefined {\n\tlet parent = position.parent;\n\n\twhile ( !isContainerOrFragment( parent ) ) {\n\t\tif ( !parent ) {\n\t\t\treturn undefined;\n\t\t}\n\n\t\tparent = parent.parent as any;\n\t}\n\n\treturn ( parent as ContainerElement | DocumentFragment );\n}\n\n// Checks if first {@link module:engine/view/attributeelement~AttributeElement AttributeElement} provided to the function\n// can be wrapped outside second element. It is done by comparing elements'\n// {@link module:engine/view/attributeelement~AttributeElement#priority priorities}, if both have same priority\n// {@link module:engine/view/element~Element#getIdentity identities} are compared.\n//\n// @param {module:engine/view/attributeelement~AttributeElement} a\n// @param {module:engine/view/attributeelement~AttributeElement} b\n// @returns {Boolean}\nfunction shouldABeOutsideB( a: AttributeElement, b: AttributeElement ): boolean {\n\tif ( a.priority < b.priority ) {\n\t\treturn true;\n\t} else if ( a.priority > b.priority ) {\n\t\treturn false;\n\t}\n\n\t// When priorities are equal and names are different - use identities.\n\treturn a.getIdentity() < b.getIdentity();\n}\n\n// Returns new position that is moved to near text node. Returns same position if there is no text node before of after\n// specified position.\n//\n//\t\t<p>foo[]</p>  ->  <p>foo{}</p>\n//\t\t<p>[]foo</p>  ->  <p>{}foo</p>\n//\n// @param {module:engine/view/position~Position} position\n// @returns {module:engine/view/position~Position} Position located inside text node or same position if there is no text nodes\n// before or after position location.\nfunction movePositionToTextNode( position: Position ): Position {\n\tconst nodeBefore = position.nodeBefore;\n\n\tif ( nodeBefore && nodeBefore.is( '$text' ) ) {\n\t\treturn new Position( nodeBefore, nodeBefore.data.length );\n\t}\n\n\tconst nodeAfter = position.nodeAfter;\n\n\tif ( nodeAfter && nodeAfter.is( '$text' ) ) {\n\t\treturn new Position( nodeAfter, 0 );\n\t}\n\n\treturn position;\n}\n\n// Breaks text node into two text nodes when possible.\n//\n//\t\t<p>foo{}bar</p> -> <p>foo[]bar</p>\n//\t\t<p>{}foobar</p> -> <p>[]foobar</p>\n//\t\t<p>foobar{}</p> -> <p>foobar[]</p>\n//\n// @param {module:engine/view/position~Position} position Position that need to be placed inside text node.\n// @returns {module:engine/view/position~Position} New position after breaking text node.\nfunction breakTextNode( position: Position ): Position {\n\tif ( position.offset == ( position.parent as Text ).data.length ) {\n\t\treturn new Position( position.parent.parent as any, ( position.parent as Text ).index! + 1 );\n\t}\n\n\tif ( position.offset === 0 ) {\n\t\treturn new Position( position.parent.parent as any, ( position.parent as Text ).index! );\n\t}\n\n\t// Get part of the text that need to be moved.\n\tconst textToMove = ( position.parent as Text ).data.slice( position.offset );\n\n\t// Leave rest of the text in position's parent.\n\t( position.parent as Text )._data = ( position.parent as Text ).data.slice( 0, position.offset );\n\n\t// Insert new text node after position's parent text node.\n\t( position.parent.parent as any )._insertChild(\n\t\t( position.parent as Text ).index! + 1,\n\t\tnew Text( position.root.document, textToMove )\n\t);\n\n\t// Return new position between two newly created text nodes.\n\treturn new Position( position.parent.parent as any, ( position.parent as Text ).index! + 1 );\n}\n\n// Merges two text nodes into first node. Removes second node and returns merge position.\n//\n// @param {module:engine/view/text~Text} t1 First text node to merge. Data from second text node will be moved at the end of\n// this text node.\n// @param {module:engine/view/text~Text} t2 Second text node to merge. This node will be removed after merging.\n// @returns {module:engine/view/position~Position} Position after merging text nodes.\nfunction mergeTextNodes( t1: Text, t2: Text ): Position {\n\t// Merge text data into first text node and remove second one.\n\tconst nodeBeforeLength = t1.data.length;\n\tt1._data += t2.data;\n\tt2._remove();\n\n\treturn new Position( t1, nodeBeforeLength );\n}\n\nconst validNodesToInsert = [ Text, AttributeElement, ContainerElement, EmptyElement, RawElement, UIElement ];\n\n// Checks if provided nodes are valid to insert.\n//\n// Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-insert-invalid-node` when nodes to insert\n// contains instances that are not supported ones (see error description for valid ones.\n//\n// @param Iterable.<module:engine/view/text~Text|module:engine/view/element~Element> nodes\n// @param {Object} errorContext\nfunction validateNodesToInsert( nodes: Iterable<Node>, errorContext: Document ): void {\n\tfor ( const node of nodes ) {\n\t\tif ( !validNodesToInsert.some( ( validNode => node instanceof validNode ) ) ) { // eslint-disable-line no-use-before-define\n\t\t\t/**\n\t\t\t * One of the nodes to be inserted is of an invalid type.\n\t\t\t *\n\t\t\t * Nodes to be inserted with {@link module:engine/view/downcastwriter~DowncastWriter#insert `DowncastWriter#insert()`} should be\n\t\t\t * of the following types:\n\t\t\t *\n\t\t\t * * {@link module:engine/view/attributeelement~AttributeElement AttributeElement},\n\t\t\t * * {@link module:engine/view/containerelement~ContainerElement ContainerElement},\n\t\t\t * * {@link module:engine/view/emptyelement~EmptyElement EmptyElement},\n\t\t\t * * {@link module:engine/view/uielement~UIElement UIElement},\n\t\t\t * * {@link module:engine/view/rawelement~RawElement RawElement},\n\t\t\t * * {@link module:engine/view/text~Text Text}.\n\t\t\t *\n\t\t\t * @error view-writer-insert-invalid-node-type\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-insert-invalid-node-type', errorContext );\n\t\t}\n\n\t\tif ( !node.is( '$text' ) ) {\n\t\t\tvalidateNodesToInsert( ( node as Element ).getChildren(), errorContext );\n\t\t}\n\t}\n}\n\n// Checks if node is ContainerElement or DocumentFragment, because in most cases they should be treated the same way.\n//\n// @param {module:engine/view/node~Node} node\n// @returns {Boolean} Returns `true` if node is instance of ContainerElement or DocumentFragment.\nfunction isContainerOrFragment( node: Node | DocumentFragment ): boolean {\n\treturn node && ( node.is( 'containerElement' ) || node.is( 'documentFragment' ) );\n}\n\n// Checks if {@link module:engine/view/range~Range#start range start} and {@link module:engine/view/range~Range#end range end} are placed\n// inside same {@link module:engine/view/containerelement~ContainerElement container element}.\n// Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when validation fails.\n//\n// @param {module:engine/view/range~Range} range\n// @param {Object} errorContext\nfunction validateRangeContainer( range: Range, errorContext: Document ) {\n\tconst startContainer = getParentContainer( range.start );\n\tconst endContainer = getParentContainer( range.end );\n\n\tif ( !startContainer || !endContainer || startContainer !== endContainer ) {\n\t\t/**\n\t\t * The container of the given range is invalid.\n\t\t *\n\t\t * This may happen if {@link module:engine/view/range~Range#start range start} and\n\t\t * {@link module:engine/view/range~Range#end range end} positions are not placed inside the same container element or\n\t\t * a parent container for these positions cannot be found.\n\t\t *\n\t\t * Methods like {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#remove()`},\n\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#clean()`},\n\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#wrap()`},\n\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#unwrap()`} need to be called\n\t\t * on a range that has its start and end positions located in the same container element. Both positions can be\n\t\t * nested within other elements (e.g. an attribute element) but the closest container ancestor must be the same.\n\t\t *\n\t\t * @error view-writer-invalid-range-container\n\t\t */\n\t\tthrow new CKEditorError( 'view-writer-invalid-range-container', errorContext );\n\t}\n}\n\n// Checks if two attribute elements can be joined together. Elements can be joined together if, and only if\n// they do not have ids specified.\n//\n// @private\n// @param {module:engine/view/element~Element} a\n// @param {module:engine/view/element~Element} b\n// @returns {Boolean}\nfunction canBeJoined( a: AttributeElement, b: AttributeElement ) {\n\treturn a.id === null && b.id === null;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { keyCodes, isText, type KeystrokeInfo } from '@ckeditor/ckeditor5-utils';\nimport type View from './view';\nimport type DomEventData from './observer/domeventdata';\n\n/**\n * Set of utilities related to handling block and inline fillers.\n *\n * Browsers do not allow to put caret in elements which does not have height. Because of it, we need to fill all\n * empty elements which should be selectable with elements or characters called \"fillers\". Unfortunately there is no one\n * universal filler, this is why two types are uses:\n *\n * * Block filler is an element which fill block elements, like `<p>`. CKEditor uses `<br>` as a block filler during the editing,\n * as browsers do natively. So instead of an empty `<p>` there will be `<p><br></p>`. The advantage of block filler is that\n * it is transparent for the selection, so when the caret is before the `<br>` and user presses right arrow he will be\n * moved to the next paragraph, not after the `<br>`. The disadvantage is that it breaks a block, so it can not be used\n * in the middle of a line of text. The {@link module:engine/view/filler~BR_FILLER `<br>` filler} can be replaced with any other\n * character in the data output, for instance {@link module:engine/view/filler~NBSP_FILLER non-breaking space} or\n * {@link module:engine/view/filler~MARKED_NBSP_FILLER marked non-breaking space}.\n *\n * * Inline filler is a filler which does not break a line of text, so it can be used inside the text, for instance in the empty\n * `<b>` surrendered by text: `foo<b></b>bar`, if we want to put the caret there. CKEditor uses a sequence of the zero-width\n * spaces as an {@link module:engine/view/filler~INLINE_FILLER inline filler} having the predetermined\n * {@link module:engine/view/filler~INLINE_FILLER_LENGTH length}. A sequence is used, instead of a single character to\n * avoid treating random zero-width spaces as the inline filler. Disadvantage of the inline filler is that it is not\n * transparent for the selection. The arrow key moves the caret between zero-width spaces characters, so the additional\n * code is needed to handle the caret.\n *\n * Both inline and block fillers are handled by the {@link module:engine/view/renderer~Renderer renderer} and are not present in the\n * view.\n *\n * @module engine/view/filler\n */\n\n/**\n * Non-breaking space filler creator. This function creates the `&nbsp;` text node.\n * It defines how the filler is created.\n *\n * @see module:engine/view/filler~MARKED_NBSP_FILLER\n * @see module:engine/view/filler~BR_FILLER\n * @function\n */\nexport const NBSP_FILLER = ( domDocument: Document ): Text => domDocument.createTextNode( '\\u00A0' );\n\n/**\n * Marked non-breaking space filler creator. This function creates the `<span data-cke-filler=\"true\">&nbsp;</span>` element.\n * It defines how the filler is created.\n *\n * @see module:engine/view/filler~NBSP_FILLER\n * @see module:engine/view/filler~BR_FILLER\n * @function\n */\nexport const MARKED_NBSP_FILLER = ( domDocument: Document ): HTMLSpanElement => {\n\tconst span = domDocument.createElement( 'span' );\n\tspan.dataset.ckeFiller = 'true';\n\tspan.innerText = '\\u00A0';\n\n\treturn span;\n};\n\n/**\n * `<br>` filler creator. This function creates the `<br data-cke-filler=\"true\">` element.\n * It defines how the filler is created.\n *\n * @see module:engine/view/filler~NBSP_FILLER\n * @see module:engine/view/filler~MARKED_NBSP_FILLER\n * @function\n */\nexport const BR_FILLER = ( domDocument: Document ): HTMLBRElement => {\n\tconst fillerBr = domDocument.createElement( 'br' );\n\tfillerBr.dataset.ckeFiller = 'true';\n\n\treturn fillerBr;\n};\n\n/**\n * Length of the {@link module:engine/view/filler~INLINE_FILLER INLINE_FILLER}.\n */\nexport const INLINE_FILLER_LENGTH = 7;\n\n/**\n * Inline filler which is a sequence of the word joiners.\n *\n * @type {String}\n */\nexport const INLINE_FILLER = '\\u2060'.repeat( INLINE_FILLER_LENGTH );\n\n/**\n * Checks if the node is a text node which starts with the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n *\n *\t\tstartsWithFiller( document.createTextNode( INLINE_FILLER ) ); // true\n *\t\tstartsWithFiller( document.createTextNode( INLINE_FILLER + 'foo' ) ); // true\n *\t\tstartsWithFiller( document.createTextNode( 'foo' ) ); // false\n *\t\tstartsWithFiller( document.createElement( 'p' ) ); // false\n *\n * @param {Node} domNode DOM node.\n * @returns {Boolean} True if the text node starts with the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n */\nexport function startsWithFiller( domNode: Node ): boolean {\n\treturn isText( domNode ) && ( domNode.data.substr( 0, INLINE_FILLER_LENGTH ) === INLINE_FILLER );\n}\n\n/**\n * Checks if the text node contains only the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n *\n *\t\tisInlineFiller( document.createTextNode( INLINE_FILLER ) ); // true\n *\t\tisInlineFiller( document.createTextNode( INLINE_FILLER + 'foo' ) ); // false\n *\n * @param {Text} domText DOM text node.\n * @returns {Boolean} True if the text node contains only the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n */\nexport function isInlineFiller( domText: Text ): boolean {\n\treturn domText.data.length == INLINE_FILLER_LENGTH && startsWithFiller( domText );\n}\n\n/**\n * Get string data from the text node, removing an {@link module:engine/view/filler~INLINE_FILLER inline filler} from it,\n * if text node contains it.\n *\n *\t\tgetDataWithoutFiller( document.createTextNode( INLINE_FILLER + 'foo' ) ) == 'foo' // true\n *\t\tgetDataWithoutFiller( document.createTextNode( 'foo' ) ) == 'foo' // true\n *\n * @param {Text} domText DOM text node, possible with inline filler.\n * @returns {String} Data without filler.\n */\nexport function getDataWithoutFiller( domText: Text ): string {\n\tif ( startsWithFiller( domText ) ) {\n\t\treturn domText.data.slice( INLINE_FILLER_LENGTH );\n\t} else {\n\t\treturn domText.data;\n\t}\n}\n\n/**\n * Assign key observer which move cursor from the end of the inline filler to the beginning of it when\n * the left arrow is pressed, so the filler does not break navigation.\n *\n * @param {module:engine/view/view~View} view View controller instance we should inject quirks handling on.\n */\nexport function injectQuirksHandling( view: View ): void {\n\tview.document.on( 'arrowKey', jumpOverInlineFiller, { priority: 'low' } );\n}\n\n// Move cursor from the end of the inline filler to the beginning of it when, so the filler does not break navigation.\nfunction jumpOverInlineFiller( evt: unknown, data: DomEventData & KeystrokeInfo ) {\n\tif ( data.keyCode == keyCodes.arrowleft ) {\n\t\tconst domSelection = data.domTarget.ownerDocument.defaultView!.getSelection()!;\n\n\t\tif ( domSelection.rangeCount == 1 && domSelection.getRangeAt( 0 ).collapsed ) {\n\t\t\tconst domParent = domSelection.getRangeAt( 0 ).startContainer;\n\t\t\tconst domOffset = domSelection.getRangeAt( 0 ).startOffset;\n\n\t\t\tif ( startsWithFiller( domParent ) && domOffset <= INLINE_FILLER_LENGTH ) {\n\t\t\t\tdomSelection.collapse( domParent, 0 );\n\t\t\t}\n\t\t}\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./renderer.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/renderer\n */\n\nimport ViewText from './text';\nimport ViewPosition from './position';\nimport { INLINE_FILLER, INLINE_FILLER_LENGTH, startsWithFiller, isInlineFiller } from './filler';\n\nimport {\n\tCKEditorError,\n\tObservableMixin,\n\tdiff,\n\tenv,\n\tfastDiff,\n\tinsertAt,\n\tisComment,\n\tisNode,\n\tisText,\n\tremove,\n\ttype DiffResult,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { ChangeType } from './document';\nimport type DocumentSelection from './documentselection';\nimport type DomConverter from './domconverter';\nimport type ViewElement from './element';\nimport type ViewNode from './node';\n\nimport '../../theme/renderer.css';\n\ntype DomText = globalThis.Text;\ntype DomNode = globalThis.Node;\ntype DomDocument = globalThis.Document;\ntype DomElement = globalThis.HTMLElement;\ntype DomSelection = globalThis.Selection;\n\n/**\n * Renderer is responsible for updating the DOM structure and the DOM selection based on\n * the {@link module:engine/view/renderer~Renderer#markToSync information about updated view nodes}.\n * In other words, it renders the view to the DOM.\n *\n * Its main responsibility is to make only the necessary, minimal changes to the DOM. However, unlike in many\n * virtual DOM implementations, the primary reason for doing minimal changes is not the performance but ensuring\n * that native editing features such as text composition, autocompletion, spell checking, selection's x-index are\n * affected as little as possible.\n *\n * Renderer uses {@link module:engine/view/domconverter~DomConverter} to transform view nodes and positions\n * to and from the DOM.\n */\nexport default class Renderer extends ObservableMixin() {\n\tpublic readonly domDocuments: Set<DomDocument>;\n\tpublic readonly domConverter: DomConverter;\n\tpublic readonly markedAttributes: Set<ViewElement>;\n\tpublic readonly markedChildren: Set<ViewElement>;\n\tpublic readonly markedTexts: Set<ViewNode>;\n\tpublic readonly selection: DocumentSelection;\n\n\tdeclare public readonly isFocused: boolean;\n\tdeclare public readonly _isFocusChanging: boolean;\n\tdeclare public readonly isSelecting: boolean;\n\tdeclare public readonly isComposing: boolean;\n\n\tprivate _inlineFiller: DomText | null;\n\tprivate _fakeSelectionContainer: DomElement | null;\n\n\t/**\n\t * Creates a renderer instance.\n\t *\n\t * @param {module:engine/view/domconverter~DomConverter} domConverter Converter instance.\n\t * @param {module:engine/view/documentselection~DocumentSelection} selection View selection.\n\t */\n\tconstructor( domConverter: DomConverter, selection: DocumentSelection ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Set of DOM Documents instances.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Set.<Document>}\n\t\t */\n\t\tthis.domDocuments = new Set();\n\n\t\t/**\n\t\t * Converter instance.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/domconverter~DomConverter}\n\t\t */\n\t\tthis.domConverter = domConverter;\n\n\t\t/**\n\t\t * Set of nodes which attributes changed and may need to be rendered.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Set.<module:engine/view/node~ViewNode>}\n\t\t */\n\t\tthis.markedAttributes = new Set();\n\n\t\t/**\n\t\t * Set of elements which child lists changed and may need to be rendered.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Set.<module:engine/view/node~ViewNode>}\n\t\t */\n\t\tthis.markedChildren = new Set();\n\n\t\t/**\n\t\t * Set of text nodes which text data changed and may need to be rendered.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Set.<module:engine/view/node~ViewNode>}\n\t\t */\n\t\tthis.markedTexts = new Set();\n\n\t\t/**\n\t\t * View selection. Renderer updates DOM selection based on the view selection.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/documentselection~DocumentSelection}\n\t\t */\n\t\tthis.selection = selection;\n\n\t\t/**\n\t\t * Indicates if the view document is focused and selection can be rendered. Selection will not be rendered if\n\t\t * this is set to `false`.\n\t\t *\n\t\t * @member {Boolean}\n\t\t * @observable\n\t\t */\n\t\tthis.set( 'isFocused', false );\n\n\t\t/**\n         * Indicates if the view document is changing the focus (`true`) and selection rendering should be prevented.\n\t\t *\n\t\t * @internal\n\t\t * @observable\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis.set( '_isFocusChanging', false );\n\n\t\t/**\n\t\t * Indicates whether the user is making a selection in the document (e.g. holding the mouse button and moving the cursor).\n\t\t * When they stop selecting, the property goes back to `false`.\n\t\t *\n\t\t * Note: In some browsers, the renderer will stop rendering the selection and inline fillers while the user is making\n\t\t * a selection to avoid glitches in DOM selection\n\t\t * (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t\t *\n\t\t * @member {Boolean}\n\t\t * @observable\n\t\t */\n\t\tthis.set( 'isSelecting', false );\n\n\t\t// Rendering the selection and inline filler manipulation should be postponed in (non-Android) Blink until the user finishes\n\t\t// creating the selection in DOM to avoid accidental selection collapsing\n\t\t// (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t\t// When the user stops selecting, all pending changes should be rendered ASAP, though.\n\t\tif ( env.isBlink && !env.isAndroid ) {\n\t\t\tthis.on<ObservableChangeEvent>( 'change:isSelecting', () => {\n\t\t\t\tif ( !this.isSelecting ) {\n\t\t\t\t\tthis.render();\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\t/**\n\t\t * True if composition is in progress inside the document.\n\t\t *\n\t\t * This property is bound to the {@link module:engine/view/document~Document#isComposing `Document#isComposing`} property.\n\t\t *\n\t\t * @member {Boolean}\n\t\t * @observable\n\t\t */\n\t\tthis.set( 'isComposing', false );\n\n\t\tthis.on( 'change:isComposing', () => {\n\t\t\tif ( !this.isComposing ) {\n\t\t\t\tthis.render();\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * The text node in which the inline filler was rendered.\n\t\t *\n\t\t * @private\n\t\t * @member {Text}\n\t\t */\n\t\tthis._inlineFiller = null;\n\n\t\t/**\n\t\t * DOM element containing fake selection.\n\t\t *\n\t\t * @private\n\t\t * @type {null|HTMLElement}\n\t\t */\n\t\tthis._fakeSelectionContainer = null;\n\t}\n\n\t/**\n\t * Marks a view node to be updated in the DOM by {@link #render `render()`}.\n\t *\n\t * Note that only view nodes whose parents have corresponding DOM elements need to be marked to be synchronized.\n\t *\n\t * @see #markedAttributes\n\t * @see #markedChildren\n\t * @see #markedTexts\n\t *\n\t * @param {module:engine/view/document~ChangeType} type Type of the change.\n\t * @param {module:engine/view/node~ViewNode} node ViewNode to be marked.\n\t */\n\tpublic markToSync( type: ChangeType, node: ViewNode ): void {\n\t\tif ( type === 'text' ) {\n\t\t\tif ( this.domConverter.mapViewToDom( node.parent! ) ) {\n\t\t\t\tthis.markedTexts.add( node );\n\t\t\t}\n\t\t} else {\n\t\t\t// If the node has no DOM element it is not rendered yet,\n\t\t\t// its children/attributes do not need to be marked to be sync.\n\t\t\tif ( !this.domConverter.mapViewToDom( node as ViewElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( type === 'attributes' ) {\n\t\t\t\tthis.markedAttributes.add( node as ViewElement );\n\t\t\t} else if ( type === 'children' ) {\n\t\t\t\tthis.markedChildren.add( node as ViewElement );\n\t\t\t} else {\n\t\t\t\t/**\n\t\t\t\t * Unknown type passed to Renderer.markToSync.\n\t\t\t\t *\n\t\t\t\t * @error view-renderer-unknown-type\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'view-renderer-unknown-type', this );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Renders all buffered changes ({@link #markedAttributes}, {@link #markedChildren} and {@link #markedTexts}) and\n\t * the current view selection (if needed) to the DOM by applying a minimal set of changes to it.\n\t *\n\t * Renderer tries not to break the text composition (e.g. IME) and x-index of the selection,\n\t * so it does as little as it is needed to update the DOM.\n\t *\n\t * Renderer also handles {@link module:engine/view/filler fillers}. Especially, it checks if the inline filler is needed\n\t * at the selection position and adds or removes it. To prevent breaking text composition inline filler will not be\n\t * removed as long as the selection is in the text node which needed it at first.\n\t */\n\tpublic render(): void {\n\t\t// Ignore rendering while in the composition mode. Composition events are not cancellable and browser will modify the DOM tree.\n\t\t// All marked elements, attributes, etc. will wait until next render after the composition ends.\n\t\t// On Android composition events are immediately applied to the model, so we don't need to skip rendering,\n\t\t// and we should not do it because the difference between view and DOM could lead to position mapping problems.\n\t\tif ( this.isComposing && !env.isAndroid ) {\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Rendering aborted while isComposing',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\treturn;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Rendering',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tlet inlineFillerPosition: ViewPosition | null = null;\n\t\tconst isInlineFillerRenderingPossible = env.isBlink && !env.isAndroid ? !this.isSelecting : true;\n\n\t\t// Refresh mappings.\n\t\tfor ( const element of this.markedChildren ) {\n\t\t\tthis._updateChildrenMappings( element );\n\t\t}\n\n\t\t// Don't manipulate inline fillers while the selection is being made in (non-Android) Blink to prevent accidental\n\t\t// DOM selection collapsing\n\t\t// (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t\tif ( isInlineFillerRenderingPossible ) {\n\t\t\t// There was inline filler rendered in the DOM but it's not\n\t\t\t// at the selection position any more, so we can remove it\n\t\t\t// (cause even if it's needed, it must be placed in another location).\n\t\t\tif ( this._inlineFiller && !this._isSelectionInInlineFiller() ) {\n\t\t\t\tthis._removeInlineFiller();\n\t\t\t}\n\n\t\t\t// If we've got the filler, let's try to guess its position in the view.\n\t\t\tif ( this._inlineFiller ) {\n\t\t\t\tinlineFillerPosition = this._getInlineFillerPosition();\n\t\t\t}\n\t\t\t// Otherwise, if it's needed, create it at the selection position.\n\t\t\telse if ( this._needsInlineFillerAtSelection() ) {\n\t\t\t\tinlineFillerPosition = this.selection.getFirstPosition()!;\n\n\t\t\t\t// Do not use `markToSync` so it will be added even if the parent is already added.\n\t\t\t\tthis.markedChildren.add( inlineFillerPosition.parent as ViewElement );\n\t\t\t}\n\t\t}\n\t\t// Make sure the inline filler has any parent, so it can be mapped to view position by DomConverter.\n\t\telse if ( this._inlineFiller && this._inlineFiller.parentNode ) {\n\t\t\t// While the user is making selection, preserve the inline filler at its original position.\n\t\t\tinlineFillerPosition = this.domConverter.domPositionToView( this._inlineFiller )!;\n\n\t\t\t// While down-casting the document selection attributes, all existing empty\n\t\t\t// attribute elements (for selection position) are removed from the view and DOM,\n\t\t\t// so make sure that we were able to map filler position.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/12026\n\t\t\tif ( inlineFillerPosition && inlineFillerPosition.parent.is( '$text' ) ) {\n\t\t\t\t// The inline filler position is expected to be before the text node.\n\t\t\t\tinlineFillerPosition = ViewPosition._createBefore( inlineFillerPosition.parent );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const element of this.markedAttributes ) {\n\t\t\tthis._updateAttrs( element );\n\t\t}\n\n\t\tfor ( const element of this.markedChildren ) {\n\t\t\tthis._updateChildren( element, { inlineFillerPosition } );\n\t\t}\n\n\t\tfor ( const node of this.markedTexts ) {\n\t\t\tif ( !this.markedChildren.has( node.parent as ViewElement ) && this.domConverter.mapViewToDom( node.parent as ViewElement ) ) {\n\t\t\t\tthis._updateText( node as ViewText, { inlineFillerPosition } );\n\t\t\t}\n\t\t}\n\n\t\t// * Check whether the inline filler is required and where it really is in the DOM.\n\t\t//   At this point in most cases it will be in the DOM, but there are exceptions.\n\t\t//   For example, if the inline filler was deep in the created DOM structure, it will not be created.\n\t\t//   Similarly, if it was removed at the beginning of this function and then neither text nor children were updated,\n\t\t//   it will not be present. Fix those and similar scenarios.\n\t\t// * Don't manipulate inline fillers while the selection is being made in (non-Android) Blink to prevent accidental\n\t\t//   DOM selection collapsing\n\t\t//   (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t\tif ( isInlineFillerRenderingPossible ) {\n\t\t\tif ( inlineFillerPosition ) {\n\t\t\t\tconst fillerDomPosition = this.domConverter.viewPositionToDom( inlineFillerPosition )!;\n\t\t\t\tconst domDocument = fillerDomPosition.parent.ownerDocument!;\n\n\t\t\t\tif ( !startsWithFiller( fillerDomPosition.parent ) ) {\n\t\t\t\t\t// Filler has not been created at filler position. Create it now.\n\t\t\t\t\tthis._inlineFiller = addInlineFiller( domDocument, fillerDomPosition.parent, fillerDomPosition.offset );\n\t\t\t\t} else {\n\t\t\t\t\t// Filler has been found, save it.\n\t\t\t\t\tthis._inlineFiller = fillerDomPosition.parent as DomText;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\t// There is no filler needed.\n\t\t\t\tthis._inlineFiller = null;\n\t\t\t}\n\t\t}\n\n\t\t// First focus the new editing host, then update the selection.\n\t\t// Otherwise, FF may throw an error (https://github.com/ckeditor/ckeditor5/issues/721).\n\t\tthis._updateFocus();\n\t\tthis._updateSelection();\n\n\t\tthis.markedTexts.clear();\n\t\tthis.markedAttributes.clear();\n\t\tthis.markedChildren.clear();\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n\n\t/**\n\t * Updates mappings of view element's children.\n\t *\n\t * Children that were replaced in the view structure by similar elements (same tag name) are treated as 'replaced'.\n\t * This means that their mappings can be updated so the new view elements are mapped to the existing DOM elements.\n\t * Thanks to that these elements do not need to be re-rendered completely.\n\t *\n\t * @private\n\t * @param {module:engine/view/node~ViewNode} viewElement The view element whose children mappings will be updated.\n\t */\n\tprivate _updateChildrenMappings( viewElement: ViewElement ): void {\n\t\tconst domElement = this.domConverter.mapViewToDom( viewElement );\n\n\t\tif ( !domElement ) {\n\t\t\t// If there is no `domElement` it means that it was already removed from DOM and there is no need to process it.\n\t\t\treturn;\n\t\t}\n\n\t\t// Removing nodes from the DOM as we iterate can cause `actualDomChildren`\n\t\t// (which is a live-updating `NodeList`) to get out of sync with the\n\t\t// indices that we compute as we iterate over `actions`.\n\t\t// This would produce incorrect element mappings.\n\t\t//\n\t\t// Converting live list to an array to make the list static.\n\t\tconst actualDomChildren = Array.from(\n\t\t\tthis.domConverter.mapViewToDom( viewElement )!.childNodes\n\t\t);\n\t\tconst expectedDomChildren = Array.from(\n\t\t\tthis.domConverter.viewChildrenToDom( viewElement, { withChildren: false } )\n\t\t);\n\t\tconst diff = this._diffNodeLists( actualDomChildren, expectedDomChildren );\n\t\tconst actions = this._findReplaceActions( diff, actualDomChildren, expectedDomChildren );\n\n\t\tif ( actions.indexOf( 'replace' ) !== -1 ) {\n\t\t\tconst counter = { equal: 0, insert: 0, delete: 0 };\n\n\t\t\tfor ( const action of actions ) {\n\t\t\t\tif ( action === 'replace' ) {\n\t\t\t\t\tconst insertIndex = counter.equal + counter.insert;\n\t\t\t\t\tconst deleteIndex = counter.equal + counter.delete;\n\t\t\t\t\tconst viewChild = viewElement.getChild( insertIndex );\n\n\t\t\t\t\t// UIElement and RawElement are special cases. Their children are not stored in a view (#799)\n\t\t\t\t\t// so we cannot use them with replacing flow (since they use view children during rendering\n\t\t\t\t\t// which will always result in rendering empty elements).\n\t\t\t\t\tif ( viewChild && !( viewChild.is( 'uiElement' ) || viewChild.is( 'rawElement' ) ) ) {\n\t\t\t\t\t\tthis._updateElementMappings( viewChild as ViewElement, actualDomChildren[ deleteIndex ] as DomElement );\n\t\t\t\t\t}\n\n\t\t\t\t\tremove( expectedDomChildren[ insertIndex ] );\n\t\t\t\t\tcounter.equal++;\n\t\t\t\t} else {\n\t\t\t\t\tcounter[ action ]++;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Updates mappings of a given view element.\n\t *\n\t * @private\n\t * @param {module:engine/view/node~ViewNode} viewElement The view element whose mappings will be updated.\n\t * @param {ViewNode} domElement The DOM element representing the given view element.\n\t */\n\tprivate _updateElementMappings( viewElement: ViewElement, domElement: DomElement ): void {\n\t\t// Remap 'DomConverter' bindings.\n\t\tthis.domConverter.unbindDomElement( domElement );\n\t\tthis.domConverter.bindElements( domElement, viewElement );\n\n\t\t// View element may have children which needs to be updated, but are not marked, mark them to update.\n\t\tthis.markedChildren.add( viewElement );\n\n\t\t// Because we replace new view element mapping with the existing one, the corresponding DOM element\n\t\t// will not be rerendered. The new view element may have different attributes than the previous one.\n\t\t// Since its corresponding DOM element will not be rerendered, new attributes will not be added\n\t\t// to the DOM, so we need to mark it here to make sure its attributes gets updated. See #1427 for more\n\t\t// detailed case study.\n\t\t// Also there are cases where replaced element is removed from the view structure and then has\n\t\t// its attributes changed or removed. In such cases the element will not be present in `markedAttributes`\n\t\t// and also may be the same (`element.isSimilar()`) as the reused element not having its attributes updated.\n\t\t// To prevent such situations we always mark reused element to have its attributes rerenderd (#1560).\n\t\tthis.markedAttributes.add( viewElement );\n\t}\n\n\t/**\n\t * Gets the position of the inline filler based on the current selection.\n\t * Here, we assume that we know that the filler is needed and\n\t * {@link #_isSelectionInInlineFiller is at the selection position}, and, since it is needed,\n\t * it is somewhere at the selection position.\n\t *\n\t * Note: The filler position cannot be restored based on the filler's DOM text node, because\n\t * when this method is called (before rendering), the bindings will often be broken. View-to-DOM\n\t * bindings are only dependable after rendering.\n\t *\n\t * @private\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tprivate _getInlineFillerPosition(): ViewPosition {\n\t\tconst firstPos = this.selection.getFirstPosition()!;\n\n\t\tif ( firstPos.parent.is( '$text' ) ) {\n\t\t\treturn ViewPosition._createBefore( firstPos.parent );\n\t\t} else {\n\t\t\treturn firstPos;\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` if the selection has not left the inline filler's text node.\n\t * If it is `true`, it means that the filler had been added for a reason and the selection did not\n\t * leave the filler's text node. For example, the user can be in the middle of a composition so it should not be touched.\n\t *\n\t * @private\n\t * @returns {Boolean} `true` if the inline filler and selection are in the same place.\n\t */\n\tprivate _isSelectionInInlineFiller(): boolean {\n\t\tif ( this.selection.rangeCount != 1 || !this.selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Note, we can't check if selection's position equals position of the\n\t\t// this._inlineFiller node, because of #663. We may not be able to calculate\n\t\t// the filler's position in the view at this stage.\n\t\t// Instead, we check it the other way – whether selection is anchored in\n\t\t// that text node or next to it.\n\n\t\t// Possible options are:\n\t\t// \"FILLER{}\"\n\t\t// \"FILLERadded-text{}\"\n\t\tconst selectionPosition = this.selection.getFirstPosition()!;\n\t\tconst position = this.domConverter.viewPositionToDom( selectionPosition );\n\n\t\tif ( position && isText( position.parent ) && startsWithFiller( position.parent ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Removes the inline filler.\n\t *\n\t * @private\n\t */\n\tprivate _removeInlineFiller(): void {\n\t\tconst domFillerNode = this._inlineFiller!;\n\n\t\t// Something weird happened and the stored node doesn't contain the filler's text.\n\t\tif ( !startsWithFiller( domFillerNode ) ) {\n\t\t\t/**\n\t\t\t * The inline filler node was lost. Most likely, something overwrote the filler text node\n\t\t\t * in the DOM.\n\t\t\t *\n\t\t\t * @error view-renderer-filler-was-lost\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-renderer-filler-was-lost', this );\n\t\t}\n\n\t\tif ( isInlineFiller( domFillerNode ) ) {\n\t\t\tdomFillerNode.remove();\n\t\t} else {\n\t\t\tdomFillerNode.data = domFillerNode.data.substr( INLINE_FILLER_LENGTH );\n\t\t}\n\n\t\tthis._inlineFiller = null;\n\t}\n\n\t/**\n\t * Checks if the inline {@link module:engine/view/filler filler} should be added.\n\t *\n\t * @private\n\t * @returns {Boolean} `true` if the inline filler should be added.\n\t */\n\tprivate _needsInlineFillerAtSelection(): boolean {\n\t\tif ( this.selection.rangeCount != 1 || !this.selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst selectionPosition = this.selection.getFirstPosition()!;\n\t\tconst selectionParent = selectionPosition.parent;\n\t\tconst selectionOffset = selectionPosition.offset;\n\n\t\t// If there is no DOM root we do not care about fillers.\n\t\tif ( !this.domConverter.mapViewToDom( selectionParent.root ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !( selectionParent.is( 'element' ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Prevent adding inline filler inside elements with contenteditable=false.\n\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/1170\n\t\tif ( !isEditable( selectionParent ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// We have block filler, we do not need inline one.\n\t\tif ( selectionOffset === selectionParent.getFillerOffset!() ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst nodeBefore = selectionPosition.nodeBefore;\n\t\tconst nodeAfter = selectionPosition.nodeAfter;\n\n\t\tif ( nodeBefore instanceof ViewText || nodeAfter instanceof ViewText ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Do not use inline filler while typing outside inline elements on Android.\n\t\t// The deleteContentBackward would remove part of the inline filler instead of removing last letter in a link.\n\t\tif ( env.isAndroid && ( nodeBefore || nodeAfter ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks if text needs to be updated and possibly updates it.\n\t *\n\t * @private\n\t * @param {module:engine/view/text~Text} viewText View text to update.\n\t * @param {Object} options\n\t * @param {module:engine/view/position~Position} options.inlineFillerPosition The position where the inline\n\t * filler should be rendered.\n\t */\n\tprivate _updateText( viewText: ViewText, options: { inlineFillerPosition?: ViewPosition | null } ) {\n\t\tconst domText = this.domConverter.findCorrespondingDomText( viewText )!;\n\t\tconst newDomText = this.domConverter.viewToDom( viewText ) as DomText;\n\n\t\tlet expectedText = newDomText.data;\n\t\tconst filler = options.inlineFillerPosition;\n\n\t\tif ( filler && filler.parent == viewText.parent && filler.offset == viewText.index ) {\n\t\t\texpectedText = INLINE_FILLER + expectedText;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Update text',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tupdateTextNode( domText, expectedText );\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n\n\t/**\n\t * Checks if attribute list needs to be updated and possibly updates it.\n\t *\n\t * @private\n\t * @param {module:engine/view/element~Element} viewElement The view element to update.\n\t */\n\tprivate _updateAttrs( viewElement: ViewElement ): void {\n\t\tconst domElement = this.domConverter.mapViewToDom( viewElement );\n\n\t\tif ( !domElement ) {\n\t\t\t// If there is no `domElement` it means that 'viewElement' is outdated as its mapping was updated\n\t\t\t// in 'this._updateChildrenMappings()'. There is no need to process it as new view element which\n\t\t\t// replaced old 'viewElement' mapping was also added to 'this.markedAttributes'\n\t\t\t// in 'this._updateChildrenMappings()' so it will be processed separately.\n\t\t\treturn;\n\t\t}\n\n\t\tconst domAttrKeys = Array.from( ( domElement as DomElement ).attributes ).map( attr => attr.name );\n\t\tconst viewAttrKeys = viewElement.getAttributeKeys();\n\n\t\t// Add or overwrite attributes.\n\t\tfor ( const key of viewAttrKeys ) {\n\t\t\tthis.domConverter.setDomElementAttribute( domElement as DomElement, key, viewElement.getAttribute( key )!, viewElement );\n\t\t}\n\n\t\t// Remove from DOM attributes which do not exists in the view.\n\t\tfor ( const key of domAttrKeys ) {\n\t\t\t// All other attributes not present in the DOM should be removed.\n\t\t\tif ( !viewElement.hasAttribute( key ) ) {\n\t\t\t\tthis.domConverter.removeDomElementAttribute( domElement as DomElement, key );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks if elements child list needs to be updated and possibly updates it.\n\t *\n\t * Note that on Android, to reduce the risk of composition breaks, it tries to update data of an existing\n\t * child text nodes instead of replacing them completely.\n\t *\n\t * @private\n\t * @param {module:engine/view/element~Element} viewElement View element to update.\n\t * @param {Object} options\n\t * @param {module:engine/view/position~Position} options.inlineFillerPosition The position where the inline\n\t * filler should be rendered.\n\t */\n\tprivate _updateChildren( viewElement: ViewElement, options: { inlineFillerPosition: ViewPosition | null } ) {\n\t\tconst domElement = this.domConverter.mapViewToDom( viewElement );\n\n\t\tif ( !domElement ) {\n\t\t\t// If there is no `domElement` it means that it was already removed from DOM.\n\t\t\t// There is no need to process it. It will be processed when re-inserted.\n\t\t\treturn;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Update children',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t// IME on Android inserts a new text node while typing after a link\n\t\t// instead of updating an existing text node that follows the link.\n\t\t// We must normalize those text nodes so the diff won't get confused.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/12574.\n\t\tif ( env.isAndroid ) {\n\t\t\tlet previousDomNode = null;\n\n\t\t\tfor ( const domNode of Array.from( domElement.childNodes ) ) {\n\t\t\t\tif ( previousDomNode && isText( previousDomNode ) && isText( domNode ) ) {\n\t\t\t\t\tdomElement.normalize();\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tpreviousDomNode = domNode;\n\t\t\t}\n\t\t}\n\n\t\tconst inlineFillerPosition = options.inlineFillerPosition;\n\t\tconst actualDomChildren = domElement.childNodes;\n\t\tconst expectedDomChildren = Array.from(\n\t\t\tthis.domConverter.viewChildrenToDom( viewElement, { bind: true } )\n\t\t);\n\n\t\t// Inline filler element has to be created as it is present in the DOM, but not in the view. It is required\n\t\t// during diffing so text nodes could be compared correctly and also during rendering to maintain\n\t\t// proper order and indexes while updating the DOM.\n\t\tif ( inlineFillerPosition && inlineFillerPosition.parent === viewElement ) {\n\t\t\taddInlineFiller( ( domElement as DomElement ).ownerDocument, expectedDomChildren, inlineFillerPosition.offset );\n\t\t}\n\n\t\tconst diff = this._diffNodeLists( actualDomChildren, expectedDomChildren );\n\n\t\t// The rendering is not disabled on Android in the composition mode.\n\t\t// Composition events are not cancellable and browser will modify the DOM tree.\n\t\t// On Android composition events are immediately applied to the model, so we don't need to skip rendering,\n\t\t// and we should not do it because the difference between view and DOM could lead to position mapping problems.\n\t\t// Since the composition is fragile and often breaks if the composed text node is replaced while composing\n\t\t// we need to make sure that we update the existing text node and not replace it with another one.\n\t\t// We don't want to change the behavior on other browsers for safety, but maybe one day cause it seems to make sense.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/12455.\n\t\tconst actions = env.isAndroid ?\n\t\t\tthis._findReplaceActions( diff, actualDomChildren, expectedDomChildren, { replaceText: true } ) :\n\t\t\tdiff;\n\n\t\tlet i = 0;\n\t\tconst nodesToUnbind: Set<DomNode> = new Set();\n\n\t\t// Handle deletions first.\n\t\t// This is to prevent a situation where an element that already exists in `actualDomChildren` is inserted at a different\n\t\t// index in `actualDomChildren`. Since `actualDomChildren` is a `NodeList`, this works like move, not like an insert,\n\t\t// and it disrupts the whole algorithm. See https://github.com/ckeditor/ckeditor5/issues/6367.\n\t\t//\n\t\t// It doesn't matter in what order we remove or add nodes, as long as we remove and add correct nodes at correct indexes.\n\t\tfor ( const action of actions ) {\n\t\t\tif ( action === 'delete' ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Remove node',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '', actualDomChildren[ i ]\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\t\tnodesToUnbind.add( actualDomChildren[ i ] as DomElement );\n\t\t\t\tremove( actualDomChildren[ i ] );\n\t\t\t} else if ( action === 'equal' || action === 'replace' ) {\n\t\t\t\ti++;\n\t\t\t}\n\t\t}\n\n\t\ti = 0;\n\n\t\tfor ( const action of actions ) {\n\t\t\tif ( action === 'insert' ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Insert node',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '', expectedDomChildren[ i ]\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tinsertAt( domElement as DomElement, i, expectedDomChildren[ i ] );\n\t\t\t\ti++;\n\t\t\t}\n\t\t\t// Update the existing text node data. Note that replace action is generated only for Android for now.\n\t\t\telse if ( action === 'replace' ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Update text node',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tupdateTextNode( actualDomChildren[ i ] as DomText, ( expectedDomChildren[ i ] as DomText ).data );\n\t\t\t\ti++;\n\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\t} else if ( action === 'equal' ) {\n\t\t\t\t// Force updating text nodes inside elements which did not change and do not need to be re-rendered (#1125).\n\t\t\t\t// Do it here (not in the loop above) because only after insertions the `i` index is correct.\n\t\t\t\tthis._markDescendantTextToSync( this.domConverter.domToView( expectedDomChildren[ i ] ) as any );\n\t\t\t\ti++;\n\t\t\t}\n\t\t}\n\n\t\t// Unbind removed nodes. When node does not have a parent it means that it was removed from DOM tree during\n\t\t// comparison with the expected DOM. We don't need to check child nodes, because if child node was reinserted,\n\t\t// it was moved to DOM tree out of the removed node.\n\t\tfor ( const node of nodesToUnbind ) {\n\t\t\tif ( !node.parentNode ) {\n\t\t\t\tthis.domConverter.unbindDomElement( node as DomElement );\n\t\t\t}\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n\n\t/**\n\t * Shorthand for diffing two arrays or node lists of DOM nodes.\n\t *\n\t * @private\n\t * @param {Array.<ViewNode>|NodeList} actualDomChildren Actual DOM children\n\t * @param {Array.<ViewNode>|NodeList} expectedDomChildren Expected DOM children.\n\t * @returns {Array.<String>} The list of actions based on the {@link module:utils/diff~diff} function.\n\t */\n\tprivate _diffNodeLists( actualDomChildren: Array<DomNode> | NodeList, expectedDomChildren: Array<DomNode> | NodeList ) {\n\t\tactualDomChildren = filterOutFakeSelectionContainer( actualDomChildren, this._fakeSelectionContainer );\n\n\t\treturn diff( actualDomChildren, expectedDomChildren, sameNodes.bind( null, this.domConverter ) );\n\t}\n\n\t/**\n\t * Finds DOM nodes that were replaced with the similar nodes (same tag name) in the view. All nodes are compared\n\t * within one `insert`/`delete` action group, for example:\n\t *\n\t * \t\tActual DOM:\t\t<p><b>Foo</b>Bar<i>Baz</i><b>Bax</b></p>\n\t * \t\tExpected DOM:\t<p>Bar<b>123</b><i>Baz</i><b>456</b></p>\n\t * \t\tInput actions:\t[ insert, insert, delete, delete, equal, insert, delete ]\n\t * \t\tOutput actions:\t[ insert, replace, delete, equal, replace ]\n\t *\n\t * @private\n\t * @param {Array.<String>} actions Actions array which is a result of the {@link module:utils/diff~diff} function.\n\t * @param {Array.<ViewNode>|NodeList} actualDom Actual DOM children\n\t * @param {Array.<ViewNode>} expectedDom Expected DOM children.\n\t * @param {Object} [options] Options\n\t * @param {Boolean} [options.replaceText] Mark text nodes replacement.\n\t * @returns {Array.<String>} Actions array modified with the `replace` actions.\n\t */\n\tprivate _findReplaceActions(\n\t\tactions: Array<DiffResult>,\n\t\tactualDom: Array<DomNode> | NodeList,\n\t\texpectedDom: Array<DomNode>,\n\t\toptions: { replaceText?: boolean } = {}\n\t): Array<DiffResult | 'replace'> {\n\t\t// If there is no both 'insert' and 'delete' actions, no need to check for replaced elements.\n\t\tif ( actions.indexOf( 'insert' ) === -1 || actions.indexOf( 'delete' ) === -1 ) {\n\t\t\treturn actions;\n\t\t}\n\n\t\tlet newActions: Array<DiffResult | 'replace'> = [];\n\t\tlet actualSlice = [];\n\t\tlet expectedSlice = [];\n\n\t\tconst counter = { equal: 0, insert: 0, delete: 0 };\n\n\t\tfor ( const action of actions ) {\n\t\t\tif ( action === 'insert' ) {\n\t\t\t\texpectedSlice.push( expectedDom[ counter.equal + counter.insert ] );\n\t\t\t} else if ( action === 'delete' ) {\n\t\t\t\tactualSlice.push( actualDom[ counter.equal + counter.delete ] );\n\t\t\t} else { // equal\n\t\t\t\tnewActions = newActions.concat(\n\t\t\t\t\tdiff( actualSlice, expectedSlice, options.replaceText ? areTextNodes : areSimilar )\n\t\t\t\t\t\t.map( x => x === 'equal' ? 'replace' : x )\n\t\t\t\t);\n\t\t\t\tnewActions.push( 'equal' );\n\t\t\t\t// Reset stored elements on 'equal'.\n\t\t\t\tactualSlice = [];\n\t\t\t\texpectedSlice = [];\n\t\t\t}\n\t\t\tcounter[ action ]++;\n\t\t}\n\n\t\treturn newActions.concat(\n\t\t\tdiff( actualSlice, expectedSlice, options.replaceText ? areTextNodes : areSimilar )\n\t\t\t\t.map( x => x === 'equal' ? 'replace' : x )\n\t\t);\n\t}\n\n\t/**\n\t * Marks text nodes to be synchronized.\n\t *\n\t * If a text node is passed, it will be marked. If an element is passed, all descendant text nodes inside it will be marked.\n\t *\n\t * @private\n\t * @param {module:engine/view/node~ViewNode} viewNode View node to sync.\n\t */\n\tprivate _markDescendantTextToSync( viewNode: ViewNode | undefined ): void {\n\t\tif ( !viewNode ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( viewNode.is( '$text' ) ) {\n\t\t\tthis.markedTexts.add( viewNode );\n\t\t} else if ( viewNode.is( 'element' ) ) {\n\t\t\tfor ( const child of viewNode.getChildren() ) {\n\t\t\t\tthis._markDescendantTextToSync( child );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks if the selection needs to be updated and possibly updates it.\n\t *\n\t * @private\n\t */\n\tprivate _updateSelection(): void {\n\t\t// Block updating DOM selection in (non-Android) Blink while the user is selecting to prevent accidental selection collapsing.\n\t\t// Note: Structural changes in DOM must trigger selection rendering, though. Nodes the selection was anchored\n\t\t// to, may disappear in DOM which would break the selection (e.g. in real-time collaboration scenarios).\n\t\t// https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723\n\t\tif ( env.isBlink && !env.isAndroid && this.isSelecting && !this.markedChildren.size ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// The focus is still in progress and we are waiting for new values from `selectionchange` event.\n\t\t// In that case, we need to prevent update selection since it would be updated using old values.\n\t\tif ( this._isFocusChanging ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If there is no selection - remove DOM and fake selections.\n\t\tif ( this.selection.rangeCount === 0 ) {\n\t\t\tthis._removeDomSelection();\n\t\t\tthis._removeFakeSelection();\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst domRoot = this.domConverter.mapViewToDom( this.selection.editableElement! ) as DomElement;\n\n\t\t// Do nothing if there is no focus, or there is no DOM element corresponding to selection's editable element.\n\t\tif ( !this.isFocused || !domRoot ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Render fake selection - create the fake selection container (if needed) and move DOM selection to it.\n\t\tif ( this.selection.isFake ) {\n\t\t\tthis._updateFakeSelection( domRoot );\n\t\t}\n\t\t// There was a fake selection so remove it and update the DOM selection.\n\t\t// This is especially important on Android because otherwise IME will try to compose over the fake selection container.\n\t\telse if ( this._fakeSelectionContainer && this._fakeSelectionContainer.isConnected ) {\n\t\t\tthis._removeFakeSelection();\n\t\t\tthis._updateDomSelection( domRoot );\n\t\t}\n\t\t// Update the DOM selection in case of a plain selection change (no fake selection is involved).\n\t\t// On non-Android the whole rendering is disabled in composition mode (including DOM selection update),\n\t\t// but updating DOM selection should be also disabled on Android if in the middle of the composition\n\t\t// (to not interrupt it).\n\t\telse if ( !( this.isComposing && env.isAndroid ) ) {\n\t\t\tthis._updateDomSelection( domRoot );\n\t\t}\n\t}\n\n\t/**\n\t * Updates the fake selection.\n\t *\n\t * @private\n\t * @param {HTMLElement} domRoot A valid DOM root where the fake selection container should be added.\n\t */\n\tprivate _updateFakeSelection( domRoot: DomElement ): void {\n\t\tconst domDocument = domRoot.ownerDocument;\n\n\t\tif ( !this._fakeSelectionContainer ) {\n\t\t\tthis._fakeSelectionContainer = createFakeSelectionContainer( domDocument );\n\t\t}\n\n\t\tconst container = this._fakeSelectionContainer;\n\n\t\t// Bind fake selection container with the current selection *position*.\n\t\tthis.domConverter.bindFakeSelection( container, this.selection );\n\n\t\tif ( !this._fakeSelectionNeedsUpdate( domRoot ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !container.parentElement || container.parentElement != domRoot ) {\n\t\t\tdomRoot.appendChild( container );\n\t\t}\n\n\t\tcontainer.textContent = this.selection.fakeSelectionLabel || '\\u00A0';\n\n\t\tconst domSelection = domDocument.getSelection()!;\n\t\tconst domRange = domDocument.createRange();\n\n\t\tdomSelection.removeAllRanges();\n\t\tdomRange.selectNodeContents( container );\n\t\tdomSelection.addRange( domRange );\n\t}\n\n\t/**\n\t * Updates the DOM selection.\n\t *\n\t * @private\n\t * @param {HTMLElement} domRoot A valid DOM root where the DOM selection should be rendered.\n\t */\n\tprivate _updateDomSelection( domRoot: DomElement ) {\n\t\tconst domSelection = domRoot.ownerDocument.defaultView!.getSelection()!;\n\n\t\t// Let's check whether DOM selection needs updating at all.\n\t\tif ( !this._domSelectionNeedsUpdate( domSelection ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Multi-range selection is not available in most browsers, and, at least in Chrome, trying to\n\t\t// set such selection, that is not continuous, throws an error. Because of that, we will just use anchor\n\t\t// and focus of view selection.\n\t\t// Since we are not supporting multi-range selection, we also do not need to check if proper editable is\n\t\t// selected. If there is any editable selected, it is okay (editable is taken from selection anchor).\n\t\tconst anchor = this.domConverter.viewPositionToDom( this.selection.anchor! )!;\n\t\tconst focus = this.domConverter.viewPositionToDom( this.selection.focus! )!;\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Update DOM selection:',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '', anchor, focus\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tdomSelection.collapse( anchor.parent, anchor.offset );\n\t\tdomSelection.extend( focus.parent, focus.offset );\n\n\t\t// Firefox–specific hack (https://github.com/ckeditor/ckeditor5-engine/issues/1439).\n\t\tif ( env.isGecko ) {\n\t\t\tfixGeckoSelectionAfterBr( focus, domSelection );\n\t\t}\n\t}\n\n\t/**\n\t * Checks whether a given DOM selection needs to be updated.\n\t *\n\t * @private\n\t * @param {Selection} domSelection The DOM selection to check.\n\t * @returns {Boolean}\n\t */\n\tprivate _domSelectionNeedsUpdate( domSelection: Selection ): boolean {\n\t\tif ( !this.domConverter.isDomSelectionCorrect( domSelection ) ) {\n\t\t\t// Current DOM selection is in incorrect position. We need to update it.\n\t\t\treturn true;\n\t\t}\n\n\t\tconst oldViewSelection = domSelection && this.domConverter.domSelectionToView( domSelection );\n\n\t\tif ( oldViewSelection && this.selection.isEqual( oldViewSelection ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// If selection is not collapsed, it does not need to be updated if it is similar.\n\t\tif ( !this.selection.isCollapsed && this.selection.isSimilar( oldViewSelection ) ) {\n\t\t\t// Selection did not changed and is correct, do not update.\n\t\t\treturn false;\n\t\t}\n\n\t\t// Selections are not similar.\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks whether the fake selection needs to be updated.\n\t *\n\t * @private\n\t * @param {HTMLElement} domRoot A valid DOM root where a new fake selection container should be added.\n\t * @returns {Boolean}\n\t */\n\tprivate _fakeSelectionNeedsUpdate( domRoot: DomElement ): boolean {\n\t\tconst container = this._fakeSelectionContainer;\n\t\tconst domSelection = domRoot.ownerDocument.getSelection()!;\n\n\t\t// Fake selection needs to be updated if there's no fake selection container, or the container currently sits\n\t\t// in a different root.\n\t\tif ( !container || container.parentElement !== domRoot ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Make sure that the selection actually is within the fake selection.\n\t\tif ( domSelection.anchorNode !== container && !container.contains( domSelection.anchorNode ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\treturn container.textContent !== this.selection.fakeSelectionLabel;\n\t}\n\n\t/**\n\t * Removes the DOM selection.\n\t *\n\t * @private\n\t */\n\tprivate _removeDomSelection(): void {\n\t\tfor ( const doc of this.domDocuments ) {\n\t\t\tconst domSelection = doc.getSelection()!;\n\n\t\t\tif ( domSelection.rangeCount ) {\n\t\t\t\tconst activeDomElement = doc.activeElement!;\n\t\t\t\tconst viewElement = this.domConverter.mapDomToView( activeDomElement as DomElement );\n\n\t\t\t\tif ( activeDomElement && viewElement ) {\n\t\t\t\t\tdomSelection.removeAllRanges();\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Removes the fake selection.\n\t *\n\t * @private\n\t */\n\tprivate _removeFakeSelection(): void {\n\t\tconst container = this._fakeSelectionContainer;\n\n\t\tif ( container ) {\n\t\t\tcontainer.remove();\n\t\t}\n\t}\n\n\t/**\n\t * Checks if focus needs to be updated and possibly updates it.\n\t *\n\t * @private\n\t */\n\tprivate _updateFocus(): void {\n\t\tif ( this.isFocused ) {\n\t\t\tconst editable = this.selection.editableElement;\n\n\t\t\tif ( editable ) {\n\t\t\t\tthis.domConverter.focus( editable );\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Checks if provided element is editable.\n//\n// @private\n// @param {module:engine/view/element~Element} element\n// @returns {Boolean}\nfunction isEditable( element: ViewElement ): boolean {\n\tif ( element.getAttribute( 'contenteditable' ) == 'false' ) {\n\t\treturn false;\n\t}\n\n\tconst parent = element.findAncestor( element => element.hasAttribute( 'contenteditable' ) );\n\n\treturn !parent || parent.getAttribute( 'contenteditable' ) == 'true';\n}\n\n// Adds inline filler at a given position.\n//\n// The position can be given as an array of DOM nodes and an offset in that array,\n// or a DOM parent element and an offset in that element.\n//\n// @private\n// @param {Document} domDocument\n// @param {Element|Array.<ViewNode>} domParentOrArray\n// @param {Number} offset\n// @returns {Text} The DOM text node that contains an inline filler.\nfunction addInlineFiller( domDocument: DomDocument, domParentOrArray: DomNode | Array<DomNode>, offset: number ): DomText {\n\tconst childNodes = domParentOrArray instanceof Array ? domParentOrArray : domParentOrArray.childNodes;\n\tconst nodeAfterFiller = childNodes[ offset ];\n\n\tif ( isText( nodeAfterFiller ) ) {\n\t\tnodeAfterFiller.data = INLINE_FILLER + nodeAfterFiller.data;\n\n\t\treturn nodeAfterFiller;\n\t} else {\n\t\tconst fillerNode = domDocument.createTextNode( INLINE_FILLER );\n\n\t\tif ( Array.isArray( domParentOrArray ) ) {\n\t\t\t( childNodes as Array<DomNode> ).splice( offset, 0, fillerNode );\n\t\t} else {\n\t\t\tinsertAt( domParentOrArray as DomElement, offset, fillerNode );\n\t\t}\n\n\t\treturn fillerNode;\n\t}\n}\n\n// Whether two DOM nodes should be considered as similar.\n// Nodes are considered similar if they have the same tag name.\n//\n// @private\n// @param {ViewNode} node1\n// @param {ViewNode} node2\n// @returns {Boolean}\nfunction areSimilar( node1: DomNode, node2: DomNode ): boolean {\n\treturn isNode( node1 ) && isNode( node2 ) &&\n\t\t!isText( node1 ) && !isText( node2 ) &&\n\t\t!isComment( node1 ) && !isComment( node2 ) &&\n\t\t( node1 as DomElement ).tagName.toLowerCase() === ( node2 as DomElement ).tagName.toLowerCase();\n}\n\n// Whether two DOM nodes are text nodes.\nfunction areTextNodes( node1: DomNode, node2: DomNode ): boolean {\n\treturn isNode( node1 ) && isNode( node2 ) &&\n\t\tisText( node1 ) && isText( node2 );\n}\n\n// Whether two dom nodes should be considered as the same.\n// Two nodes which are considered the same are:\n//\n//\t\t* Text nodes with the same text.\n//\t\t* Element nodes represented by the same object.\n//\t\t* Two block filler elements.\n//\n// @private\n// @param {String} blockFillerMode Block filler mode, see {@link module:engine/view/domconverter~DomConverter#blockFillerMode}.\n// @param {ViewNode} node1\n// @param {ViewNode} node2\n// @returns {Boolean}\nfunction sameNodes( domConverter: DomConverter, actualDomChild: DomNode, expectedDomChild: DomNode ): boolean {\n\t// Elements.\n\tif ( actualDomChild === expectedDomChild ) {\n\t\treturn true;\n\t}\n\t// Texts.\n\telse if ( isText( actualDomChild ) && isText( expectedDomChild ) ) {\n\t\treturn actualDomChild.data === expectedDomChild.data;\n\t}\n\t// Block fillers.\n\telse if ( domConverter.isBlockFiller( actualDomChild ) &&\n\t\tdomConverter.isBlockFiller( expectedDomChild ) ) {\n\t\treturn true;\n\t}\n\n\t// Not matching types.\n\treturn false;\n}\n\n// The following is a Firefox–specific hack (https://github.com/ckeditor/ckeditor5-engine/issues/1439).\n// When the native DOM selection is at the end of the block and preceded by <br /> e.g.\n//\n//\t\t<p>foo<br/>[]</p>\n//\n// which happens a lot when using the soft line break, the browser fails to (visually) move the\n// caret to the new line. A quick fix is as simple as force–refreshing the selection with the same range.\nfunction fixGeckoSelectionAfterBr( focus: ReturnType<DomConverter[ 'viewPositionToDom' ]>, domSelection: DomSelection ) {\n\tconst parent = focus!.parent;\n\n\t// This fix works only when the focus point is at the very end of an element.\n\t// There is no point in running it in cases unrelated to the browser bug.\n\tif ( parent.nodeType != Node.ELEMENT_NODE || focus!.offset != parent.childNodes.length - 1 ) {\n\t\treturn;\n\t}\n\n\tconst childAtOffset = parent.childNodes[ focus!.offset ];\n\n\t// To stay on the safe side, the fix being as specific as possible, it targets only the\n\t// selection which is at the very end of the element and preceded by <br />.\n\tif ( childAtOffset && ( childAtOffset as DomElement ).tagName == 'BR' ) {\n\t\tdomSelection.addRange( domSelection.getRangeAt( 0 ) );\n\t}\n}\n\nfunction filterOutFakeSelectionContainer( domChildList: Array<DomNode> | NodeList, fakeSelectionContainer: DomElement | null ) {\n\tconst childList = Array.from( domChildList );\n\n\tif ( childList.length == 0 || !fakeSelectionContainer ) {\n\t\treturn childList;\n\t}\n\n\tconst last = childList[ childList.length - 1 ];\n\n\tif ( last == fakeSelectionContainer ) {\n\t\tchildList.pop();\n\t}\n\n\treturn childList;\n}\n\n// Creates a fake selection container for a given document.\n//\n// @private\n// @param {Document} domDocument\n// @returns {HTMLElement}\nfunction createFakeSelectionContainer( domDocument: DomDocument ): DomElement {\n\tconst container = domDocument.createElement( 'div' );\n\n\tcontainer.className = 'ck-fake-selection-container';\n\n\tObject.assign( container.style, {\n\t\tposition: 'fixed',\n\t\ttop: 0,\n\t\tleft: '-9999px',\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/752.\n\t\twidth: '42px'\n\t} );\n\n\t// Fill it with a text node so we can update it later.\n\tcontainer.textContent = '\\u00A0';\n\n\treturn container;\n}\n\n// Checks if text needs to be updated and possibly updates it by removing and inserting only parts\n// of the data from the existing text node to reduce impact on the IME composition.\n//\n// @param {Text} domText DOM text node to update.\n// @param {String} expectedText The expected data of a text node.\nfunction updateTextNode( domText: DomText, expectedText: string ) {\n\tconst actualText = domText.data;\n\n\tif ( actualText == expectedText ) {\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Text node does not need update:',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '',\n\t\t// @if CK_DEBUG_TYPING // \t\t`\"${ domText.data }\" (${ domText.data.length })`\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\treturn;\n\t}\n\n\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Update text node:',\n\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '',\n\t// @if CK_DEBUG_TYPING // \t\t`\"${ domText.data }\" (${ domText.data.length }) -> \"${ expectedText }\" (${ expectedText.length })`\n\t// @if CK_DEBUG_TYPING // \t);\n\t// @if CK_DEBUG_TYPING // }\n\n\tconst actions = fastDiff( actualText, expectedText );\n\n\tfor ( const action of actions ) {\n\t\tif ( action.type === 'insert' ) {\n\t\t\tdomText.insertData( action.index, action.values.join( '' ) );\n\t\t} else { // 'delete'\n\t\t\tdomText.deleteData( action.index, action.howMany );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/domconverter\n */\n\n/* globals Node, NodeFilter, DOMParser, Text */\n\nimport ViewText from './text';\nimport ViewElement from './element';\nimport ViewUIElement from './uielement';\nimport ViewPosition from './position';\nimport ViewRange from './range';\nimport ViewSelection from './selection';\nimport ViewDocumentFragment from './documentfragment';\nimport ViewTreeWalker from './treewalker';\nimport { default as Matcher, type MatcherPattern } from './matcher';\nimport {\n\tBR_FILLER, INLINE_FILLER_LENGTH, NBSP_FILLER, MARKED_NBSP_FILLER,\n\tgetDataWithoutFiller, isInlineFiller, startsWithFiller\n} from './filler';\n\nimport {\n\tglobal,\n\tlogWarning,\n\tindexOf,\n\tgetAncestors,\n\tisText,\n\tisComment\n} from '@ckeditor/ckeditor5-utils';\n\nimport type ViewNode from './node';\nimport type Document from './document';\nimport type DocumentSelection from './documentselection';\nimport type EditableElement from './editableelement';\nimport type ViewTextProxy from './textproxy';\nimport type ViewRawElement from './rawelement';\n\ntype DomNode = globalThis.Node;\ntype DomElement = globalThis.HTMLElement;\ntype DomDocument = globalThis.Document;\ntype DomDocumentFragment = globalThis.DocumentFragment;\ntype DomComment = globalThis.Comment;\ntype DomRange = globalThis.Range;\ntype DomText = globalThis.Text;\ntype DomSelection = globalThis.Selection;\n\nconst BR_FILLER_REF = BR_FILLER( global.document ); // eslint-disable-line new-cap\nconst NBSP_FILLER_REF = NBSP_FILLER( global.document ); // eslint-disable-line new-cap\nconst MARKED_NBSP_FILLER_REF = MARKED_NBSP_FILLER( global.document ); // eslint-disable-line new-cap\nconst UNSAFE_ATTRIBUTE_NAME_PREFIX = 'data-ck-unsafe-attribute-';\nconst UNSAFE_ELEMENT_REPLACEMENT_ATTRIBUTE = 'data-ck-unsafe-element';\n\n/**\n * `DomConverter` is a set of tools to do transformations between DOM nodes and view nodes. It also handles\n * {@link module:engine/view/domconverter~DomConverter#bindElements bindings} between these nodes.\n *\n * An instance of the DOM converter is available under\n * {@link module:engine/view/view~View#domConverter `editor.editing.view.domConverter`}.\n *\n * The DOM converter does not check which nodes should be rendered (use {@link module:engine/view/renderer~Renderer}), does not keep the\n * state of a tree nor keeps the synchronization between the tree view and the DOM tree (use {@link module:engine/view/document~Document}).\n *\n * The DOM converter keeps DOM elements to view element bindings, so when the converter gets destroyed, the bindings are lost.\n * Two converters will keep separate binding maps, so one tree view can be bound with two DOM trees.\n */\nexport default class DomConverter {\n\tpublic readonly document: Document;\n\tpublic readonly renderingMode: 'data' | 'editing';\n\tpublic blockFillerMode: BlockFillerMode;\n\tpublic readonly preElements: Array<string>;\n\tpublic readonly blockElements: Array<string>;\n\tpublic readonly inlineObjectElements: Array<string>;\n\tpublic readonly unsafeElements: Array<string>;\n\n\tprivate readonly _domDocument: DomDocument;\n\tprivate readonly _domToViewMapping: WeakMap<DomElement | DomDocumentFragment, ViewElement | ViewDocumentFragment>;\n\tprivate readonly _viewToDomMapping: WeakMap<ViewElement | ViewDocumentFragment, DomElement | DomDocumentFragment>;\n\tprivate readonly _fakeSelectionMapping: WeakMap<DomElement, ViewSelection>;\n\tprivate readonly _rawContentElementMatcher: Matcher;\n\tprivate readonly _encounteredRawContentDomNodes: WeakSet<DomNode>;\n\n\t/**\n\t * Creates a DOM converter.\n\t *\n\t * @param {module:engine/view/document~Document} document The view document instance.\n\t * @param {Object} options An object with configuration options.\n\t * @param {module:engine/view/filler~BlockFillerMode} [options.blockFillerMode] The type of the block filler to use.\n\t * Default value depends on the options.renderingMode:\n\t *  'nbsp' when options.renderingMode == 'data',\n\t *  'br' when options.renderingMode == 'editing'.\n\t * @param {'data'|'editing'} [options.renderingMode='editing'] Whether to leave the View-to-DOM conversion result unchanged\n\t * or improve editing experience by filtering out interactive data.\n\t */\n\tconstructor( document: Document, options: {\n\t\tblockFillerMode?: BlockFillerMode;\n\t\trenderingMode?: 'data' | 'editing';\n\t} = {} ) {\n\t\t/**\n\t\t * @readonly\n\t\t * @type {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = document;\n\n\t\t/**\n\t\t * Whether to leave the View-to-DOM conversion result unchanged or improve editing experience by filtering out interactive data.\n\t\t *\n\t\t * @member {'data'|'editing'} module:engine/view/domconverter~DomConverter#renderingMode\n\t\t */\n\t\tthis.renderingMode = options.renderingMode || 'editing';\n\n\t\t/**\n\t\t * The mode of a block filler used by the DOM converter.\n\t\t *\n\t\t * @member {'br'|'nbsp'|'markedNbsp'} module:engine/view/domconverter~DomConverter#blockFillerMode\n\t\t */\n\t\tthis.blockFillerMode = options.blockFillerMode || ( this.renderingMode === 'editing' ? 'br' : 'nbsp' );\n\n\t\t/**\n\t\t * Elements which are considered pre-formatted elements.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Array.<String>} module:engine/view/domconverter~DomConverter#preElements\n\t\t */\n\t\tthis.preElements = [ 'pre' ];\n\n\t\t/**\n\t\t * Elements which are considered block elements (and hence should be filled with a\n\t\t * {@link #isBlockFiller block filler}).\n\t\t *\n\t\t * Whether an element is considered a block element also affects handling of trailing whitespaces.\n\t\t *\n\t\t * You can extend this array if you introduce support for block elements which are not yet recognized here.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Array.<String>} module:engine/view/domconverter~DomConverter#blockElements\n\t\t */\n\t\tthis.blockElements = [\n\t\t\t'address', 'article', 'aside', 'blockquote', 'caption', 'center', 'dd', 'details', 'dir', 'div',\n\t\t\t'dl', 'dt', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header',\n\t\t\t'hgroup', 'legend', 'li', 'main', 'menu', 'nav', 'ol', 'p', 'pre', 'section', 'summary', 'table', 'tbody',\n\t\t\t'td', 'tfoot', 'th', 'thead', 'tr', 'ul'\n\t\t];\n\n\t\t/**\n\t\t * A list of elements that exist inline (in text) but their inner structure cannot be edited because\n\t\t * of the way they are rendered by the browser. They are mostly HTML form elements but there are other\n\t\t * elements such as `<img>` or `<iframe>` that also have non-editable children or no children whatsoever.\n\t\t *\n\t\t * Whether an element is considered an inline object has an impact on white space rendering (trimming)\n\t\t * around (and inside of it). In short, white spaces in text nodes next to inline objects are not trimmed.\n\t\t *\n\t\t * You can extend this array if you introduce support for inline object elements which are not yet recognized here.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Array.<String>} module:engine/view/domconverter~DomConverter#inlineObjectElements\n\t\t */\n\t\tthis.inlineObjectElements = [\n\t\t\t'object', 'iframe', 'input', 'button', 'textarea', 'select', 'option', 'video', 'embed', 'audio', 'img', 'canvas'\n\t\t];\n\n\t\t/**\n\t\t * A list of elements which may affect the editing experience. To avoid this, those elements are replaced with\n\t\t * `<span data-ck-unsafe-element=\"[element name]\"></span>` while rendering in the editing mode.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Array.<String>} module:engine/view/domconverter~DomConverter#unsafeElements\n\t\t */\n\t\tthis.unsafeElements = [ 'script', 'style' ];\n\n\t\t/**\n\t\t * The DOM Document used to create DOM nodes.\n\t\t *\n\t\t * @type {Document}\n\t\t * @private\n\t\t */\n\t\tthis._domDocument = this.renderingMode === 'editing' ? global.document : global.document.implementation.createHTMLDocument( '' );\n\n\t\t/**\n\t\t * The DOM-to-view mapping.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakMap} module:engine/view/domconverter~DomConverter#_domToViewMapping\n\t\t */\n\t\tthis._domToViewMapping = new WeakMap();\n\n\t\t/**\n\t\t * The view-to-DOM mapping.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakMap} module:engine/view/domconverter~DomConverter#_viewToDomMapping\n\t\t */\n\t\tthis._viewToDomMapping = new WeakMap();\n\n\t\t/**\n\t\t * Holds the mapping between fake selection containers and corresponding view selections.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakMap} module:engine/view/domconverter~DomConverter#_fakeSelectionMapping\n\t\t */\n\t\tthis._fakeSelectionMapping = new WeakMap();\n\n\t\t/**\n\t\t * Matcher for view elements whose content should be treated as raw data\n\t\t * and not processed during the conversion from DOM nodes to view elements.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/view/matcher~Matcher}\n\t\t */\n\t\tthis._rawContentElementMatcher = new Matcher();\n\n\t\t/**\n\t\t * A set of encountered raw content DOM nodes. It is used for preventing left trimming of the following text node.\n\t\t *\n\t\t * @private\n\t\t * @type {WeakSet.<Node>}\n\t\t */\n\t\tthis._encounteredRawContentDomNodes = new WeakSet();\n\t}\n\n\t/**\n\t * Binds a given DOM element that represents fake selection to a **position** of a\n\t * {@link module:engine/view/documentselection~DocumentSelection document selection}.\n\t * Document selection copy is stored and can be retrieved by the\n\t * {@link module:engine/view/domconverter~DomConverter#fakeSelectionToView} method.\n\t *\n\t * @param {HTMLElement} domElement\n\t * @param {module:engine/view/documentselection~DocumentSelection} viewDocumentSelection\n\t */\n\tpublic bindFakeSelection( domElement: DomElement, viewDocumentSelection: DocumentSelection ): void {\n\t\tthis._fakeSelectionMapping.set( domElement, new ViewSelection( viewDocumentSelection ) );\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/selection~Selection view selection} instance corresponding to a given\n\t * DOM element that represents fake selection. Returns `undefined` if binding to the given DOM element does not exist.\n\t *\n\t * @param {HTMLElement} domElement\n\t * @returns {module:engine/view/selection~Selection|undefined}\n\t */\n\tpublic fakeSelectionToView( domElement: DomElement ): ViewSelection | undefined {\n\t\treturn this._fakeSelectionMapping.get( domElement );\n\t}\n\n\t/**\n\t * Binds DOM and view elements, so it will be possible to get corresponding elements using\n\t * {@link module:engine/view/domconverter~DomConverter#mapDomToView} and\n\t * {@link module:engine/view/domconverter~DomConverter#mapViewToDom}.\n\t *\n\t * @param {HTMLElement} domElement The DOM element to bind.\n\t * @param {module:engine/view/element~Element} viewElement The view element to bind.\n\t */\n\tpublic bindElements( domElement: DomElement, viewElement: ViewElement ): void {\n\t\tthis._domToViewMapping.set( domElement, viewElement );\n\t\tthis._viewToDomMapping.set( viewElement, domElement );\n\t}\n\n\t/**\n\t * Unbinds a given DOM element from the view element it was bound to. Unbinding is deep, meaning that all children of\n\t * the DOM element will be unbound too.\n\t *\n\t * @param {HTMLElement} domElement The DOM element to unbind.\n\t */\n\tpublic unbindDomElement( domElement: DomElement ): void {\n\t\tconst viewElement = this._domToViewMapping.get( domElement );\n\n\t\tif ( viewElement ) {\n\t\t\tthis._domToViewMapping.delete( domElement );\n\t\t\tthis._viewToDomMapping.delete( viewElement );\n\n\t\t\tfor ( const child of Array.from( domElement.children ) ) {\n\t\t\t\tthis.unbindDomElement( child as DomElement );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Binds DOM and view document fragments, so it will be possible to get corresponding document fragments using\n\t * {@link module:engine/view/domconverter~DomConverter#mapDomToView} and\n\t * {@link module:engine/view/domconverter~DomConverter#mapViewToDom}.\n\t *\n\t * @param {DocumentFragment} domFragment The DOM document fragment to bind.\n\t * @param {module:engine/view/documentfragment~DocumentFragment} viewFragment The view document fragment to bind.\n\t */\n\tpublic bindDocumentFragments( domFragment: DomDocumentFragment, viewFragment: ViewDocumentFragment ): void {\n\t\tthis._domToViewMapping.set( domFragment, viewFragment );\n\t\tthis._viewToDomMapping.set( viewFragment, domFragment );\n\t}\n\n\t/**\n\t * Decides whether a given pair of attribute key and value should be passed further down the pipeline.\n\t *\n\t * @param {String} attributeKey\n\t * @param {String} attributeValue\n\t * @param {String} elementName Element name in lower case.\n\t * @returns {Boolean}\n\t */\n\tpublic shouldRenderAttribute( attributeKey: string, attributeValue: string, elementName: string ): boolean {\n\t\tif ( this.renderingMode === 'data' ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tattributeKey = attributeKey.toLowerCase();\n\n\t\tif ( attributeKey.startsWith( 'on' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif (\n\t\t\tattributeKey === 'srcdoc' &&\n\t\t\tattributeValue.match( /\\bon\\S+\\s*=|javascript:|<\\s*\\/*script/i )\n\t\t) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif (\n\t\t\telementName === 'img' &&\n\t\t\t( attributeKey === 'src' || attributeKey === 'srcset' )\n\t\t) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( elementName === 'source' && attributeKey === 'srcset' ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( attributeValue.match( /^\\s*(javascript:|data:(image\\/svg|text\\/x?html))/i ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Set `domElement`'s content using provided `html` argument. Apply necessary filtering for the editing pipeline.\n\t *\n\t * @param {Element} domElement DOM element that should have `html` set as its content.\n\t * @param {String} html Textual representation of the HTML that will be set on `domElement`.\n\t */\n\tpublic setContentOf( domElement: DomElement, html: string ): void {\n\t\t// For data pipeline we pass the HTML as-is.\n\t\tif ( this.renderingMode === 'data' ) {\n\t\t\tdomElement.innerHTML = html;\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst document = new DOMParser().parseFromString( html, 'text/html' );\n\t\tconst fragment = document.createDocumentFragment();\n\t\tconst bodyChildNodes = document.body.childNodes;\n\n\t\twhile ( bodyChildNodes.length > 0 ) {\n\t\t\tfragment.appendChild( bodyChildNodes[ 0 ] );\n\t\t}\n\n\t\tconst treeWalker = document.createTreeWalker( fragment, NodeFilter.SHOW_ELEMENT );\n\t\tconst nodes: Array<DomElement> = [];\n\n\t\tlet currentNode;\n\n\t\t// eslint-disable-next-line no-cond-assign\n\t\twhile ( currentNode = treeWalker.nextNode() ) {\n\t\t\tnodes.push( currentNode as DomElement );\n\t\t}\n\n\t\tfor ( const currentNode of nodes ) {\n\t\t\t// Go through nodes to remove those that are prohibited in editing pipeline.\n\t\t\tfor ( const attributeName of currentNode.getAttributeNames() ) {\n\t\t\t\tthis.setDomElementAttribute( currentNode, attributeName, currentNode.getAttribute( attributeName )! );\n\t\t\t}\n\n\t\t\tconst elementName = currentNode.tagName.toLowerCase();\n\n\t\t\t// There are certain nodes, that should be renamed to <span> in editing pipeline.\n\t\t\tif ( this._shouldRenameElement( elementName ) ) {\n\t\t\t\t_logUnsafeElement( elementName );\n\n\t\t\t\tcurrentNode.replaceWith( this._createReplacementDomElement( elementName, currentNode ) );\n\t\t\t}\n\t\t}\n\n\t\t// Empty the target element.\n\t\twhile ( domElement.firstChild ) {\n\t\t\tdomElement.firstChild.remove();\n\t\t}\n\n\t\tdomElement.append( fragment );\n\t}\n\n\t/**\n\t * Converts the view to the DOM. For all text nodes, not bound elements and document fragments new items will\n\t * be created. For bound elements and document fragments the method will return corresponding items.\n\t *\n\t * @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} viewNode\n\t * View node or document fragment to transform.\n\t * @param {Object} [options] Conversion options.\n\t * @param {Boolean} [options.bind=false] Determines whether new elements will be bound.\n\t * @param {Boolean} [options.withChildren=true] If `true`, node's and document fragment's children will be converted too.\n\t * @returns {Node|DocumentFragment} Converted node or DocumentFragment.\n\t */\n\tpublic viewToDom(\n\t\tviewNode: ViewNode | ViewDocumentFragment,\n\t\toptions: { bind?: boolean; withChildren?: boolean } = {}\n\t): DomNode | DomDocumentFragment {\n\t\tif ( viewNode.is( '$text' ) ) {\n\t\t\tconst textData = this._processDataFromViewText( viewNode );\n\n\t\t\treturn this._domDocument.createTextNode( textData );\n\t\t} else {\n\t\t\tif ( this.mapViewToDom( viewNode as ViewElement ) ) {\n\t\t\t\treturn this.mapViewToDom( viewNode as ViewElement )!;\n\t\t\t}\n\n\t\t\tlet domElement: DomElement | DomDocumentFragment | DomComment;\n\n\t\t\tif ( viewNode.is( 'documentFragment' ) ) {\n\t\t\t\t// Create DOM document fragment.\n\t\t\t\tdomElement = this._domDocument.createDocumentFragment();\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindDocumentFragments( domElement, viewNode );\n\t\t\t\t}\n\t\t\t} else if ( viewNode.is( 'uiElement' ) ) {\n\t\t\t\tif ( viewNode.name === '$comment' ) {\n\t\t\t\t\tdomElement = this._domDocument.createComment( viewNode.getCustomProperty( '$rawContent' ) as string );\n\t\t\t\t} else {\n\t\t\t\t\t// UIElement has its own render() method (see #799).\n\t\t\t\t\tdomElement = viewNode.render( this._domDocument, this );\n\t\t\t\t}\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindElements( domElement as DomElement, viewNode );\n\t\t\t\t}\n\n\t\t\t\treturn domElement;\n\t\t\t} else {\n\t\t\t\t// Create DOM element.\n\t\t\t\tif ( this._shouldRenameElement( ( viewNode as ViewElement ).name ) ) {\n\t\t\t\t\t_logUnsafeElement( ( viewNode as ViewElement ).name );\n\n\t\t\t\t\tdomElement = this._createReplacementDomElement( ( viewNode as ViewElement ).name );\n\t\t\t\t} else if ( ( viewNode as ViewElement ).hasAttribute( 'xmlns' ) ) {\n\t\t\t\t\tdomElement = this._domDocument.createElementNS(\n\t\t\t\t\t\t( viewNode as ViewElement ).getAttribute( 'xmlns' )!,\n\t\t\t\t\t\t( viewNode as ViewElement ).name\n\t\t\t\t\t) as HTMLElement;\n\t\t\t\t} else {\n\t\t\t\t\tdomElement = this._domDocument.createElement( ( viewNode as ViewElement ).name );\n\t\t\t\t}\n\n\t\t\t\t// RawElement take care of their children in RawElement#render() method which can be customized\n\t\t\t\t// (see https://github.com/ckeditor/ckeditor5/issues/4469).\n\t\t\t\tif ( viewNode.is( 'rawElement' ) ) {\n\t\t\t\t\tviewNode.render( domElement, this );\n\t\t\t\t}\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindElements( domElement, ( viewNode as ViewElement ) );\n\t\t\t\t}\n\n\t\t\t\t// Copy element's attributes.\n\t\t\t\tfor ( const key of ( viewNode as ViewElement ).getAttributeKeys() ) {\n\t\t\t\t\tthis.setDomElementAttribute(\n\t\t\t\t\t\tdomElement,\n\t\t\t\t\t\tkey,\n\t\t\t\t\t\t( viewNode as ViewElement ).getAttribute( key )!,\n\t\t\t\t\t\t( viewNode as ViewElement )\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( options.withChildren !== false ) {\n\t\t\t\tfor ( const child of this.viewChildrenToDom( viewNode as ViewElement, options ) ) {\n\t\t\t\t\tdomElement!.appendChild( child );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn domElement!;\n\t\t}\n\t}\n\n\t/**\n\t * Sets the attribute on a DOM element.\n\t *\n\t * **Note**: To remove the attribute, use {@link #removeDomElementAttribute}.\n\t *\n\t * @param {HTMLElement} domElement The DOM element the attribute should be set on.\n\t * @param {String} key The name of the attribute.\n\t * @param {String} value The value of the attribute.\n\t * @param {module:engine/view/element~Element} [relatedViewElement] The view element related to the `domElement` (if there is any).\n\t * It helps decide whether the attribute set is unsafe. For instance, view elements created via the\n\t * {@link module:engine/view/downcastwriter~DowncastWriter} methods can allow certain attributes that would normally be filtered out.\n\t */\n\tpublic setDomElementAttribute( domElement: DomElement, key: string, value: string, relatedViewElement?: ViewElement ): void {\n\t\tconst shouldRenderAttribute = this.shouldRenderAttribute( key, value, domElement.tagName.toLowerCase() ) ||\n\t\t\trelatedViewElement && relatedViewElement.shouldRenderUnsafeAttribute( key );\n\n\t\tif ( !shouldRenderAttribute ) {\n\t\t\tlogWarning( 'domconverter-unsafe-attribute-detected', { domElement, key, value } );\n\t\t}\n\n\t\t// The old value was safe but the new value is unsafe.\n\t\tif ( domElement.hasAttribute( key ) && !shouldRenderAttribute ) {\n\t\t\tdomElement.removeAttribute( key );\n\t\t}\n\t\t// The old value was unsafe (but prefixed) but the new value will be safe (will be unprefixed).\n\t\telse if ( domElement.hasAttribute( UNSAFE_ATTRIBUTE_NAME_PREFIX + key ) && shouldRenderAttribute ) {\n\t\t\tdomElement.removeAttribute( UNSAFE_ATTRIBUTE_NAME_PREFIX + key );\n\t\t}\n\n\t\t// If the attribute should not be rendered, rename it (instead of removing) to give developers some idea of what\n\t\t// is going on (https://github.com/ckeditor/ckeditor5/issues/10801).\n\t\tdomElement.setAttribute( shouldRenderAttribute ? key : UNSAFE_ATTRIBUTE_NAME_PREFIX + key, value );\n\t}\n\n\t/**\n\t * Removes an attribute from a DOM element.\n\t *\n\t * **Note**: To set the attribute, use {@link #setDomElementAttribute}.\n\t *\n\t * @param {HTMLElement} domElement The DOM element the attribute should be removed from.\n\t * @param {String} key The name of the attribute.\n\t */\n\tpublic removeDomElementAttribute( domElement: DomElement, key: string ): void {\n\t\t// See #_createReplacementDomElement() to learn what this is.\n\t\tif ( key == UNSAFE_ELEMENT_REPLACEMENT_ATTRIBUTE ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdomElement.removeAttribute( key );\n\n\t\t// See setDomElementAttribute() to learn what this is.\n\t\tdomElement.removeAttribute( UNSAFE_ATTRIBUTE_NAME_PREFIX + key );\n\t}\n\n\t/**\n\t * Converts children of the view element to DOM using the\n\t * {@link module:engine/view/domconverter~DomConverter#viewToDom} method.\n\t * Additionally, this method adds block {@link module:engine/view/filler filler} to the list of children, if needed.\n\t *\n\t * @param {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment} viewElement Parent view element.\n\t * @param {Object} options See {@link module:engine/view/domconverter~DomConverter#viewToDom} options parameter.\n\t * @returns {Iterable.<Node>} DOM nodes.\n\t */\n\tpublic* viewChildrenToDom(\n\t\tviewElement: ViewElement,\n\t\toptions: Parameters<DomConverter[ 'viewToDom' ]>[ 1 ] = {}\n\t): IterableIterator<Node> {\n\t\tconst fillerPositionOffset = viewElement.getFillerOffset && viewElement.getFillerOffset();\n\t\tlet offset = 0;\n\n\t\tfor ( const childView of viewElement.getChildren() ) {\n\t\t\tif ( fillerPositionOffset === offset ) {\n\t\t\t\tyield this._getBlockFiller();\n\t\t\t}\n\n\t\t\tconst transparentRendering = childView.is( 'element' ) &&\n\t\t\t\t( childView.getCustomProperty( 'dataPipeline:transparentRendering' ) as boolean | undefined );\n\n\t\t\tif ( transparentRendering && this.renderingMode == 'data' ) {\n\t\t\t\tyield* this.viewChildrenToDom( childView, options );\n\t\t\t} else {\n\t\t\t\tif ( transparentRendering ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The `dataPipeline:transparentRendering` flag is supported only in the data pipeline.\n\t\t\t\t\t *\n\t\t\t\t\t * @error domconverter-transparent-rendering-unsupported-in-editing-pipeline\n\t\t\t\t\t */\n\t\t\t\t\tlogWarning( 'domconverter-transparent-rendering-unsupported-in-editing-pipeline', { viewElement: childView } );\n\t\t\t\t}\n\n\t\t\t\tyield this.viewToDom( childView as any, options );\n\t\t\t}\n\n\t\t\toffset++;\n\t\t}\n\n\t\tif ( fillerPositionOffset === offset ) {\n\t\t\tyield this._getBlockFiller();\n\t\t}\n\t}\n\n\t/**\n\t * Converts view {@link module:engine/view/range~Range} to DOM range.\n\t * Inline and block {@link module:engine/view/filler fillers} are handled during the conversion.\n\t *\n\t * @param {module:engine/view/range~Range} viewRange View range.\n\t * @returns {Range} DOM range.\n\t */\n\tpublic viewRangeToDom( viewRange: ViewRange ): DomRange {\n\t\tconst domStart = this.viewPositionToDom( viewRange.start )!;\n\t\tconst domEnd = this.viewPositionToDom( viewRange.end )!;\n\n\t\tconst domRange = this._domDocument.createRange();\n\t\tdomRange.setStart( domStart.parent, domStart.offset );\n\t\tdomRange.setEnd( domEnd.parent, domEnd.offset );\n\n\t\treturn domRange;\n\t}\n\n\t/**\n\t * Converts view {@link module:engine/view/position~Position} to DOM parent and offset.\n\t *\n\t * Inline and block {@link module:engine/view/filler fillers} are handled during the conversion.\n\t * If the converted position is directly before inline filler it is moved inside the filler.\n\t *\n\t * @param {module:engine/view/position~Position} viewPosition View position.\n\t * @returns {Object|null} position DOM position or `null` if view position could not be converted to DOM.\n\t * @returns {Node} position.parent DOM position parent.\n\t * @returns {Number} position.offset DOM position offset.\n\t */\n\tpublic viewPositionToDom( viewPosition: ViewPosition ): { parent: DomNode; offset: number } | null {\n\t\tconst viewParent = viewPosition.parent;\n\n\t\tif ( viewParent.is( '$text' ) ) {\n\t\t\tconst domParent = this.findCorrespondingDomText( viewParent );\n\n\t\t\tif ( !domParent ) {\n\t\t\t\t// Position is in a view text node that has not been rendered to DOM yet.\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tlet offset = viewPosition.offset;\n\n\t\t\tif ( startsWithFiller( domParent ) ) {\n\t\t\t\toffset += INLINE_FILLER_LENGTH;\n\t\t\t}\n\n\t\t\treturn { parent: domParent, offset };\n\t\t} else {\n\t\t\t// viewParent is instance of ViewElement.\n\t\t\tlet domParent, domBefore, domAfter;\n\n\t\t\tif ( viewPosition.offset === 0 ) {\n\t\t\t\tdomParent = this.mapViewToDom( viewParent as ViewElement );\n\n\t\t\t\tif ( !domParent ) {\n\t\t\t\t\t// Position is in a view element that has not been rendered to DOM yet.\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tdomAfter = domParent.childNodes[ 0 ];\n\t\t\t} else {\n\t\t\t\tconst nodeBefore = viewPosition.nodeBefore!;\n\n\t\t\t\tdomBefore = nodeBefore.is( '$text' ) ?\n\t\t\t\t\tthis.findCorrespondingDomText( nodeBefore ) :\n\t\t\t\t\tthis.mapViewToDom( nodeBefore as ViewElement );\n\n\t\t\t\tif ( !domBefore ) {\n\t\t\t\t\t// Position is after a view element that has not been rendered to DOM yet.\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tdomParent = domBefore.parentNode;\n\t\t\t\tdomAfter = domBefore.nextSibling;\n\t\t\t}\n\n\t\t\t// If there is an inline filler at position return position inside the filler. We should never return\n\t\t\t// the position before the inline filler.\n\t\t\tif ( isText( domAfter ) && startsWithFiller( domAfter ) ) {\n\t\t\t\treturn { parent: domAfter, offset: INLINE_FILLER_LENGTH };\n\t\t\t}\n\n\t\t\tconst offset = domBefore ? indexOf( domBefore ) + 1 : 0;\n\n\t\t\treturn { parent: domParent!, offset };\n\t\t}\n\t}\n\n\t/**\n\t * Converts DOM to view. For all text nodes, not bound elements and document fragments new items will\n\t * be created. For bound elements and document fragments function will return corresponding items. For\n\t * {@link module:engine/view/filler fillers} `null` will be returned.\n\t * For all DOM elements rendered by {@link module:engine/view/uielement~UIElement} that UIElement will be returned.\n\t *\n\t * @param {Node|DocumentFragment} domNode DOM node or document fragment to transform.\n\t * @param {Object} [options] Conversion options.\n\t * @param {Boolean} [options.bind=false] Determines whether new elements will be bound.\n\t * @param {Boolean} [options.withChildren=true] If `true`, node's and document fragment's children will be converted too.\n\t * @param {Boolean} [options.keepOriginalCase=false] If `false`, node's tag name will be converted to lower case.\n\t * @param {Boolean} [options.skipComments=false] If `false`, comment nodes will be converted to `$comment`\n\t * {@link module:engine/view/uielement~UIElement view UI elements}.\n\t * @returns {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment|null} Converted node or document fragment\n\t * or `null` if DOM node is a {@link module:engine/view/filler filler} or the given node is an empty text node.\n\t */\n\tpublic domToView( domNode: DomNode, options: {\n\t\tbind?: boolean;\n\t\twithChildren?: boolean;\n\t\tkeepOriginalCase?: boolean;\n\t\tskipComments?: boolean;\n\t} = {} ): ViewNode | ViewDocumentFragment | null\n\n\t{\n\t\tif ( this.isBlockFiller( domNode ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// When node is inside a UIElement or a RawElement return that parent as it's view representation.\n\t\tconst hostElement = this.getHostViewElement( domNode );\n\n\t\tif ( hostElement ) {\n\t\t\treturn hostElement;\n\t\t}\n\n\t\tif ( isComment( domNode ) && options.skipComments ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( isText( domNode ) ) {\n\t\t\tif ( isInlineFiller( domNode ) ) {\n\t\t\t\treturn null;\n\t\t\t} else {\n\t\t\t\tconst textData = this._processDataFromDomText( domNode );\n\n\t\t\t\treturn textData === '' ? null : new ViewText( this.document, textData );\n\t\t\t}\n\t\t} else {\n\t\t\tif ( this.mapDomToView( domNode as ( DomElement | DomDocumentFragment ) ) ) {\n\t\t\t\treturn this.mapDomToView( domNode as ( DomElement | DomDocumentFragment ) )!;\n\t\t\t}\n\n\t\t\tlet viewElement;\n\n\t\t\tif ( this.isDocumentFragment( domNode ) ) {\n\t\t\t\t// Create view document fragment.\n\t\t\t\tviewElement = new ViewDocumentFragment( this.document );\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindDocumentFragments( domNode, viewElement );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\t// Create view element.\n\t\t\t\tviewElement = this._createViewElement( domNode, options );\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindElements( domNode as DomElement, viewElement );\n\t\t\t\t}\n\n\t\t\t\t// Copy element's attributes.\n\t\t\t\tconst attrs = ( domNode as DomElement ).attributes;\n\n\t\t\t\tif ( attrs ) {\n\t\t\t\t\tfor ( let l = attrs.length, i = 0; i < l; i++ ) {\n\t\t\t\t\t\tviewElement._setAttribute( attrs[ i ].name, attrs[ i ].value );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Treat this element's content as a raw data if it was registered as such.\n\t\t\t\t// Comment node is also treated as an element with raw data.\n\t\t\t\tif ( this._isViewElementWithRawContent( viewElement, options ) || isComment( domNode ) ) {\n\t\t\t\t\tconst rawContent = isComment( domNode ) ? domNode.data : ( domNode as DomElement ).innerHTML;\n\n\t\t\t\t\tviewElement._setCustomProperty( '$rawContent', rawContent );\n\n\t\t\t\t\t// Store a DOM node to prevent left trimming of the following text node.\n\t\t\t\t\tthis._encounteredRawContentDomNodes.add( domNode );\n\n\t\t\t\t\treturn viewElement;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( options.withChildren !== false ) {\n\t\t\t\tfor ( const child of this.domChildrenToView( domNode as DomElement, options ) ) {\n\t\t\t\t\tviewElement._appendChild( child );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn viewElement;\n\t\t}\n\t}\n\n\t/**\n\t * Converts children of the DOM element to view nodes using\n\t * the {@link module:engine/view/domconverter~DomConverter#domToView} method.\n\t * Additionally this method omits block {@link module:engine/view/filler filler}, if it exists in the DOM parent.\n\t *\n\t * @param {HTMLElement} domElement Parent DOM element.\n\t * @param {Object} options See {@link module:engine/view/domconverter~DomConverter#domToView} options parameter.\n\t * @returns {Iterable.<module:engine/view/node~Node>} View nodes.\n\t */\n\tpublic* domChildrenToView( domElement: DomElement, options: Parameters<DomConverter[ 'domToView' ]>[ 1 ] ):\n\t\tIterableIterator<ViewNode> {\n\t\tfor ( let i = 0; i < domElement.childNodes.length; i++ ) {\n\t\t\tconst domChild = domElement.childNodes[ i ];\n\t\t\tconst viewChild = this.domToView( domChild, options ) as Exclude<ReturnType<DomConverter[ 'domToView']>, ViewDocumentFragment>;\n\n\t\t\tif ( viewChild !== null ) {\n\t\t\t\tyield viewChild;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Converts DOM selection to view {@link module:engine/view/selection~Selection}.\n\t * Ranges which cannot be converted will be omitted.\n\t *\n\t * @param {Selection} domSelection DOM selection.\n\t * @returns {module:engine/view/selection~Selection} View selection.\n\t */\n\tpublic domSelectionToView( domSelection: DomSelection ): ViewSelection {\n\t\t// DOM selection might be placed in fake selection container.\n\t\t// If container contains fake selection - return corresponding view selection.\n\t\tif ( domSelection.rangeCount === 1 ) {\n\t\t\tlet container: Node | null = domSelection.getRangeAt( 0 ).startContainer;\n\n\t\t\t// The DOM selection might be moved to the text node inside the fake selection container.\n\t\t\tif ( isText( container ) ) {\n\t\t\t\tcontainer = container.parentNode;\n\t\t\t}\n\n\t\t\tconst viewSelection = this.fakeSelectionToView( container as DomElement );\n\n\t\t\tif ( viewSelection ) {\n\t\t\t\treturn viewSelection;\n\t\t\t}\n\t\t}\n\n\t\tconst isBackward = this.isDomSelectionBackward( domSelection );\n\n\t\tconst viewRanges: Array<ViewRange> = [];\n\n\t\tfor ( let i = 0; i < domSelection.rangeCount; i++ ) {\n\t\t\t// DOM Range have correct start and end, no matter what is the DOM Selection direction. So we don't have to fix anything.\n\t\t\tconst domRange = domSelection.getRangeAt( i );\n\t\t\tconst viewRange = this.domRangeToView( domRange );\n\n\t\t\tif ( viewRange ) {\n\t\t\t\tviewRanges.push( viewRange );\n\t\t\t}\n\t\t}\n\n\t\treturn new ViewSelection( viewRanges, { backward: isBackward } );\n\t}\n\n\t/**\n\t * Converts DOM Range to view {@link module:engine/view/range~Range}.\n\t * If the start or end position can not be converted `null` is returned.\n\t *\n\t * @param {Range} domRange DOM range.\n\t * @returns {module:engine/view/range~Range|null} View range.\n\t */\n\tpublic domRangeToView( domRange: DomRange | StaticRange ): ViewRange | null {\n\t\tconst viewStart = this.domPositionToView( domRange.startContainer, domRange.startOffset );\n\t\tconst viewEnd = this.domPositionToView( domRange.endContainer, domRange.endOffset );\n\n\t\tif ( viewStart && viewEnd ) {\n\t\t\treturn new ViewRange( viewStart, viewEnd );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Converts DOM parent and offset to view {@link module:engine/view/position~Position}.\n\t *\n\t * If the position is inside a {@link module:engine/view/filler filler} which has no corresponding view node,\n\t * position of the filler will be converted and returned.\n\t *\n\t * If the position is inside DOM element rendered by {@link module:engine/view/uielement~UIElement}\n\t * that position will be converted to view position before that UIElement.\n\t *\n\t * If structures are too different and it is not possible to find corresponding position then `null` will be returned.\n\t *\n\t * @param {Node} domParent DOM position parent.\n\t * @param {Number} [domOffset=0] DOM position offset. You can skip it when converting the inline filler node.\n\t * @returns {module:engine/view/position~Position} viewPosition View position.\n\t */\n\tpublic domPositionToView( domParent: DomNode, domOffset: number = 0 ): ViewPosition | null {\n\t\tif ( this.isBlockFiller( domParent ) ) {\n\t\t\treturn this.domPositionToView( domParent.parentNode!, indexOf( domParent ) );\n\t\t}\n\n\t\t// If position is somewhere inside UIElement or a RawElement - return position before that element.\n\t\tconst viewElement = this.mapDomToView( domParent as DomElement );\n\n\t\tif ( viewElement && ( viewElement.is( 'uiElement' ) || viewElement.is( 'rawElement' ) ) ) {\n\t\t\treturn ViewPosition._createBefore( viewElement );\n\t\t}\n\n\t\tif ( isText( domParent ) ) {\n\t\t\tif ( isInlineFiller( domParent ) ) {\n\t\t\t\treturn this.domPositionToView( domParent.parentNode!, indexOf( domParent ) );\n\t\t\t}\n\n\t\t\tconst viewParent = this.findCorrespondingViewText( domParent );\n\t\t\tlet offset = domOffset;\n\n\t\t\tif ( !viewParent ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tif ( startsWithFiller( domParent ) ) {\n\t\t\t\toffset -= INLINE_FILLER_LENGTH;\n\t\t\t\toffset = offset < 0 ? 0 : offset;\n\t\t\t}\n\n\t\t\treturn new ViewPosition( viewParent, offset );\n\t\t}\n\t\t// domParent instanceof HTMLElement.\n\t\telse {\n\t\t\tif ( domOffset === 0 ) {\n\t\t\t\tconst viewParent = this.mapDomToView( domParent as DomElement );\n\n\t\t\t\tif ( viewParent ) {\n\t\t\t\t\treturn new ViewPosition( viewParent, 0 );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst domBefore = domParent.childNodes[ domOffset - 1 ];\n\n\t\t\t\tif ( isText( domBefore ) && isInlineFiller( domBefore ) ) {\n\t\t\t\t\treturn this.domPositionToView( domBefore.parentNode!, indexOf( domBefore ) );\n\t\t\t\t}\n\n\t\t\t\tconst viewBefore = isText( domBefore ) ?\n\t\t\t\t\tthis.findCorrespondingViewText( domBefore ) :\n\t\t\t\t\tthis.mapDomToView( domBefore as DomElement );\n\n\t\t\t\t// TODO #663\n\t\t\t\tif ( viewBefore && viewBefore.parent ) {\n\t\t\t\t\treturn new ViewPosition( viewBefore.parent, viewBefore.index! + 1 );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t/**\n\t * Returns corresponding view {@link module:engine/view/element~Element Element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment} for provided DOM element or\n\t * document fragment. If there is no view item {@link module:engine/view/domconverter~DomConverter#bindElements bound}\n\t * to the given DOM - `undefined` is returned.\n\t *\n\t * For all DOM elements rendered by a {@link module:engine/view/uielement~UIElement} or\n\t * a {@link module:engine/view/rawelement~RawElement}, the parent `UIElement` or `RawElement` will be returned.\n\t *\n\t * @param {DocumentFragment|Element} domElementOrDocumentFragment DOM element or document fragment.\n\t * @returns {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment|undefined}\n\t * Corresponding view element, document fragment or `undefined` if no element was bound.\n\t */\n\tpublic mapDomToView( domElementOrDocumentFragment: DomElement | DomDocumentFragment ): ViewElement | ViewDocumentFragment | undefined {\n\t\tconst hostElement = this.getHostViewElement( domElementOrDocumentFragment );\n\n\t\treturn hostElement || this._domToViewMapping.get( domElementOrDocumentFragment );\n\t}\n\n\t/**\n\t * Finds corresponding text node. Text nodes are not {@link module:engine/view/domconverter~DomConverter#bindElements bound},\n\t * corresponding text node is returned based on the sibling or parent.\n\t *\n\t * If the directly previous sibling is a {@link module:engine/view/domconverter~DomConverter#bindElements bound} element, it is used\n\t * to find the corresponding text node.\n\t *\n\t * If this is a first child in the parent and the parent is a {@link module:engine/view/domconverter~DomConverter#bindElements bound}\n\t * element, it is used to find the corresponding text node.\n\t *\n\t * For all text nodes rendered by a {@link module:engine/view/uielement~UIElement} or\n\t * a {@link module:engine/view/rawelement~RawElement}, the parent `UIElement` or `RawElement` will be returned.\n\t *\n\t * Otherwise `null` is returned.\n\t *\n\t * Note that for the block or inline {@link module:engine/view/filler filler} this method returns `null`.\n\t *\n\t * @param {Text} domText DOM text node.\n\t * @returns {module:engine/view/text~Text|null} Corresponding view text node or `null`, if it was not possible to find a\n\t * corresponding node.\n\t */\n\tpublic findCorrespondingViewText( domText: DomText ): ViewText | ViewUIElement | ViewRawElement | null {\n\t\tif ( isInlineFiller( domText ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// If DOM text was rendered by a UIElement or a RawElement - return this parent element.\n\t\tconst hostElement = this.getHostViewElement( domText );\n\n\t\tif ( hostElement ) {\n\t\t\treturn hostElement;\n\t\t}\n\n\t\tconst previousSibling = domText.previousSibling;\n\n\t\t// Try to use previous sibling to find the corresponding text node.\n\t\tif ( previousSibling ) {\n\t\t\tif ( !( this.isElement( previousSibling ) ) ) {\n\t\t\t\t// The previous is text or comment.\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tconst viewElement = this.mapDomToView( previousSibling );\n\n\t\t\tif ( viewElement ) {\n\t\t\t\tconst nextSibling = ( viewElement as ViewElement ).nextSibling;\n\n\t\t\t\t// It might be filler which has no corresponding view node.\n\t\t\t\tif ( nextSibling instanceof ViewText ) {\n\t\t\t\t\treturn nextSibling;\n\t\t\t\t} else {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t// Try to use parent to find the corresponding text node.\n\t\telse {\n\t\t\tconst viewElement = this.mapDomToView( domText.parentNode as ( DomElement | DomDocumentFragment ) );\n\n\t\t\tif ( viewElement ) {\n\t\t\t\tconst firstChild = ( viewElement as ViewElement ).getChild( 0 );\n\n\t\t\t\t// It might be filler which has no corresponding view node.\n\t\t\t\tif ( firstChild instanceof ViewText ) {\n\t\t\t\t\treturn firstChild;\n\t\t\t\t} else {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns corresponding DOM item for provided {@link module:engine/view/element~Element Element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment}.\n\t * To find a corresponding text for {@link module:engine/view/text~Text view Text instance}\n\t * use {@link #findCorrespondingDomText}.\n\t *\n\t * @param {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment} viewNode\n\t * View element or document fragment.\n\t * @returns {Node|DocumentFragment|undefined} Corresponding DOM node or document fragment.\n\t */\n\tpublic mapViewToDom( documentFragmentOrElement: ViewElement | ViewDocumentFragment ): DomNode | DomDocumentFragment | undefined {\n\t\treturn this._viewToDomMapping.get( documentFragmentOrElement );\n\t}\n\n\t/**\n\t * Finds corresponding text node. Text nodes are not {@link module:engine/view/domconverter~DomConverter#bindElements bound},\n\t * corresponding text node is returned based on the sibling or parent.\n\t *\n\t * If the directly previous sibling is a {@link module:engine/view/domconverter~DomConverter#bindElements bound} element, it is used\n\t * to find the corresponding text node.\n\t *\n\t * If this is a first child in the parent and the parent is a {@link module:engine/view/domconverter~DomConverter#bindElements bound}\n\t * element, it is used to find the corresponding text node.\n\t *\n\t * Otherwise `null` is returned.\n\t *\n\t * @param {module:engine/view/text~Text} viewText View text node.\n\t * @returns {Text|null} Corresponding DOM text node or `null`, if it was not possible to find a corresponding node.\n\t */\n\tpublic findCorrespondingDomText( viewText: ViewText ): DomText | null {\n\t\tconst previousSibling = viewText.previousSibling;\n\n\t\t// Try to use previous sibling to find the corresponding text node.\n\t\tif ( previousSibling && this.mapViewToDom( previousSibling as ViewElement ) ) {\n\t\t\treturn this.mapViewToDom( previousSibling as ViewElement )!.nextSibling as DomText;\n\t\t}\n\n\t\t// If this is a first node, try to use parent to find the corresponding text node.\n\t\tif ( !previousSibling && viewText.parent && this.mapViewToDom( viewText.parent ) ) {\n\t\t\treturn this.mapViewToDom( viewText.parent )!.childNodes[ 0 ] as DomText;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Focuses DOM editable that is corresponding to provided {@link module:engine/view/editableelement~EditableElement}.\n\t *\n\t * @param {module:engine/view/editableelement~EditableElement} viewEditable\n\t */\n\tpublic focus( viewEditable: EditableElement ): void {\n\t\tconst domEditable = this.mapViewToDom( viewEditable ) as DomElement;\n\n\t\tif ( domEditable && domEditable.ownerDocument.activeElement !== domEditable ) {\n\t\t\t// Save the scrollX and scrollY positions before the focus.\n\t\t\tconst { scrollX, scrollY } = global.window;\n\t\t\tconst scrollPositions: Array<[ number, number ]> = [];\n\n\t\t\t// Save all scrollLeft and scrollTop values starting from domEditable up to\n\t\t\t// document#documentElement.\n\t\t\tforEachDomElementAncestor( domEditable, node => {\n\t\t\t\tconst { scrollLeft, scrollTop } = ( node as DomElement );\n\n\t\t\t\tscrollPositions.push( [ scrollLeft, scrollTop ] );\n\t\t\t} );\n\n\t\t\tdomEditable.focus();\n\n\t\t\t// Restore scrollLeft and scrollTop values starting from domEditable up to\n\t\t\t// document#documentElement.\n\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/951\n\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/957\n\t\t\tforEachDomElementAncestor( domEditable, node => {\n\t\t\t\tconst [ scrollLeft, scrollTop ] = scrollPositions.shift() as [ number, number ];\n\n\t\t\t\tnode.scrollLeft = scrollLeft;\n\t\t\t\tnode.scrollTop = scrollTop;\n\t\t\t} );\n\n\t\t\t// Restore the scrollX and scrollY positions after the focus.\n\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/951\n\t\t\tglobal.window.scrollTo( scrollX, scrollY );\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when `node.nodeType` equals `Node.ELEMENT_NODE`.\n\t *\n\t * @param {Node} node Node to check.\n\t * @returns {Boolean}\n\t */\n\tpublic isElement( node: DomNode ): node is DomElement {\n\t\treturn node && node.nodeType == Node.ELEMENT_NODE;\n\t}\n\n\t/**\n\t * Returns `true` when `node.nodeType` equals `Node.DOCUMENT_FRAGMENT_NODE`.\n\t *\n\t * @param {Node} node Node to check.\n\t * @returns {Boolean}\n\t */\n\tpublic isDocumentFragment( node: DomNode ): node is DomDocumentFragment {\n\t\treturn node && node.nodeType == Node.DOCUMENT_FRAGMENT_NODE;\n\t}\n\n\t/**\n\t * Checks if the node is an instance of the block filler for this DOM converter.\n\t *\n\t *\t\tconst converter = new DomConverter( viewDocument, { blockFillerMode: 'br' } );\n\t *\n\t *\t\tconverter.isBlockFiller( BR_FILLER( document ) ); // true\n\t *\t\tconverter.isBlockFiller( NBSP_FILLER( document ) ); // false\n\t *\n\t * **Note:**: For the `'nbsp'` mode the method also checks context of a node so it cannot be a detached node.\n\t *\n\t * **Note:** A special case in the `'nbsp'` mode exists where the `<br>` in `<p><br></p>` is treated as a block filler.\n\t *\n\t * @param {Node} domNode DOM node to check.\n\t * @returns {Boolean} True if a node is considered a block filler for given mode.\n\t */\n\tpublic isBlockFiller( domNode: DomNode ): boolean {\n\t\tif ( this.blockFillerMode == 'br' ) {\n\t\t\treturn domNode.isEqualNode( BR_FILLER_REF );\n\t\t}\n\n\t\t// Special case for <p><br></p> in which <br> should be treated as filler even when we are not in the 'br' mode. See ckeditor5#5564.\n\t\tif (\n\t\t\t( domNode as DomElement ).tagName === 'BR' &&\n\t\t\thasBlockParent( domNode, this.blockElements ) &&\n\t\t\t( domNode as DomElement ).parentNode!.childNodes.length === 1\n\t\t) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// If not in 'br' mode, try recognizing both marked and regular nbsp block fillers.\n\t\treturn domNode.isEqualNode( MARKED_NBSP_FILLER_REF ) || isNbspBlockFiller( domNode, this.blockElements );\n\t}\n\n\t/**\n\t * Returns `true` if given selection is a backward selection, that is, if it's `focus` is before `anchor`.\n\t *\n\t * @param {Selection} DOM Selection instance to check.\n\t * @returns {Boolean}\n\t */\n\tpublic isDomSelectionBackward( selection: DomSelection ): boolean {\n\t\tif ( selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Since it takes multiple lines of code to check whether a \"DOM Position\" is before/after another \"DOM Position\",\n\t\t// we will use the fact that range will collapse if it's end is before it's start.\n\t\tconst range = this._domDocument.createRange();\n\n\t\ttry {\n\t\t\trange.setStart( selection.anchorNode!, selection.anchorOffset );\n\t\t\trange.setEnd( selection.focusNode!, selection.focusOffset );\n\t\t} catch ( e ) {\n\t\t\t// Safari sometimes gives us a selection that makes Range.set{Start,End} throw.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/12375.\n\t\t\treturn false;\n\t\t}\n\n\t\tconst backward = range.collapsed;\n\n\t\trange.detach();\n\n\t\treturn backward;\n\t}\n\n\t/**\n\t * Returns a parent {@link module:engine/view/uielement~UIElement} or {@link module:engine/view/rawelement~RawElement}\n\t * that hosts the provided DOM node. Returns `null` if there is no such parent.\n\t *\n\t * @param {Node} domNode\n\t * @returns {module:engine/view/uielement~UIElement|module:engine/view/rawelement~RawElement|null}\n\t */\n\tpublic getHostViewElement( domNode: DomNode ): ViewUIElement | ViewRawElement | null {\n\t\tconst ancestors = getAncestors( domNode );\n\n\t\t// Remove domNode from the list.\n\t\tancestors.pop();\n\n\t\twhile ( ancestors.length ) {\n\t\t\tconst domNode = ancestors.pop();\n\t\t\tconst viewNode = this._domToViewMapping.get( domNode as DomElement );\n\n\t\t\tif ( viewNode && ( viewNode.is( 'uiElement' ) || viewNode.is( 'rawElement' ) ) ) {\n\t\t\t\treturn viewNode;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Checks if the given selection's boundaries are at correct places.\n\t *\n\t * The following places are considered as incorrect for selection boundaries:\n\t *\n\t * * before or in the middle of an inline filler sequence,\n\t * * inside a DOM element which represents {@link module:engine/view/uielement~UIElement a view UI element},\n\t * * inside a DOM element which represents {@link module:engine/view/rawelement~RawElement a view raw element}.\n\t *\n\t * @param {Selection} domSelection The DOM selection object to be checked.\n\t * @returns {Boolean} `true` if the given selection is at a correct place, `false` otherwise.\n\t */\n\tpublic isDomSelectionCorrect( domSelection: DomSelection ): boolean {\n\t\treturn this._isDomSelectionPositionCorrect( domSelection.anchorNode!, domSelection.anchorOffset ) &&\n\t\t\tthis._isDomSelectionPositionCorrect( domSelection.focusNode!, domSelection.focusOffset );\n\t}\n\n\t/**\n\t * Registers a {@link module:engine/view/matcher~MatcherPattern} for view elements whose content should be treated as raw data\n\t * and not processed during the conversion from DOM nodes to view elements.\n\t *\n\t * This is affecting how {@link module:engine/view/domconverter~DomConverter#domToView} and\n\t * {@link module:engine/view/domconverter~DomConverter#domChildrenToView} process DOM nodes.\n\t *\n\t * The raw data can be later accessed by a\n\t * {@link module:engine/view/element~Element#getCustomProperty custom property of a view element} called `\"$rawContent\"`.\n\t *\n\t * @param {module:engine/view/matcher~MatcherPattern} pattern Pattern matching a view element whose content should\n\t * be treated as raw data.\n\t */\n\tpublic registerRawContentMatcher( pattern: MatcherPattern ): void {\n\t\tthis._rawContentElementMatcher.add( pattern );\n\t}\n\n\t/**\n\t * Returns the block {@link module:engine/view/filler filler} node based on the current {@link #blockFillerMode} setting.\n\t *\n\t * @private\n\t * @returns {Node} filler\n\t */\n\tprivate _getBlockFiller(): DomNode {\n\t\tswitch ( this.blockFillerMode ) {\n\t\t\tcase 'nbsp':\n\t\t\t\treturn NBSP_FILLER( this._domDocument ); // eslint-disable-line new-cap\n\t\t\tcase 'markedNbsp':\n\t\t\t\treturn MARKED_NBSP_FILLER( this._domDocument ); // eslint-disable-line new-cap\n\t\t\tcase 'br':\n\t\t\t\treturn BR_FILLER( this._domDocument ); // eslint-disable-line new-cap\n\t\t}\n\t}\n\n\t/**\n\t * Checks if the given DOM position is a correct place for selection boundary. See {@link #isDomSelectionCorrect}.\n\t *\n\t * @private\n\t * @param {Element} domParent Position parent.\n\t * @param {Number} offset Position offset.\n\t * @returns {Boolean} `true` if given position is at a correct place for selection boundary, `false` otherwise.\n\t */\n\tprivate _isDomSelectionPositionCorrect( domParent: DomNode, offset: number ): boolean {\n\t\t// If selection is before or in the middle of inline filler string, it is incorrect.\n\t\tif ( isText( domParent ) && startsWithFiller( domParent ) && offset < INLINE_FILLER_LENGTH ) {\n\t\t\t// Selection in a text node, at wrong position (before or in the middle of filler).\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this.isElement( domParent ) && startsWithFiller( domParent.childNodes[ offset ] ) ) {\n\t\t\t// Selection in an element node, before filler text node.\n\t\t\treturn false;\n\t\t}\n\n\t\tconst viewParent = this.mapDomToView( domParent as DomElement );\n\n\t\t// The position is incorrect when anchored inside a UIElement or a RawElement.\n\t\t// Note: In case of UIElement and RawElement, mapDomToView() returns a parent element for any DOM child\n\t\t// so there's no need to perform any additional checks.\n\t\tif ( viewParent && ( viewParent.is( 'uiElement' ) || viewParent.is( 'rawElement' ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Takes text data from a given {@link module:engine/view/text~Text#data} and processes it so\n\t * it is correctly displayed in the DOM.\n\t *\n\t * Following changes are done:\n\t *\n\t * * a space at the beginning is changed to `&nbsp;` if this is the first text node in its container\n\t * element or if a previous text node ends with a space character,\n\t * * space at the end of the text node is changed to `&nbsp;` if there are two spaces at the end of a node or if next node\n\t * starts with a space or if it is the last text node in its container,\n\t * * remaining spaces are replaced to a chain of spaces and `&nbsp;` (e.g. `'x   x'` becomes `'x &nbsp; x'`).\n\t *\n\t * Content of {@link #preElements} is not processed.\n\t *\n\t * @private\n\t * @param {module:engine/view/text~Text} node View text node to process.\n\t * @returns {String} Processed text data.\n\t */\n\tprivate _processDataFromViewText( node: ViewText | ViewTextProxy ): string {\n\t\tlet data = node.data;\n\n\t\t// If any of node ancestors has a name which is in `preElements` array, then currently processed\n\t\t// view text node is (will be) in preformatted element. We should not change whitespaces then.\n\t\tif ( node.getAncestors().some( parent => this.preElements.includes( ( parent as ViewElement ).name ) ) ) {\n\t\t\treturn data;\n\t\t}\n\n\t\t// 1. Replace the first space with a nbsp if the previous node ends with a space or there is no previous node\n\t\t// (container element boundary).\n\t\tif ( data.charAt( 0 ) == ' ' ) {\n\t\t\tconst prevNode = this._getTouchingInlineViewNode( node as ViewText, false );\n\t\t\tconst prevEndsWithSpace = prevNode && prevNode.is( '$textProxy' ) && this._nodeEndsWithSpace( prevNode as ViewTextProxy );\n\n\t\t\tif ( prevEndsWithSpace || !prevNode ) {\n\t\t\t\tdata = '\\u00A0' + data.substr( 1 );\n\t\t\t}\n\t\t}\n\n\t\t// 2. Replace the last space with nbsp if there are two spaces at the end or if the next node starts with space or there is no\n\t\t// next node (container element boundary).\n\t\t//\n\t\t// Keep in mind that Firefox prefers $nbsp; before tag, not inside it:\n\t\t//\n\t\t// Foo <span>&nbsp;bar</span>  <-- bad.\n\t\t// Foo&nbsp;<span> bar</span>  <-- good.\n\t\t//\n\t\t// More here: https://github.com/ckeditor/ckeditor5-engine/issues/1747.\n\t\tif ( data.charAt( data.length - 1 ) == ' ' ) {\n\t\t\tconst nextNode = this._getTouchingInlineViewNode( node as ViewText, true );\n\t\t\tconst nextStartsWithSpace = nextNode && nextNode.is( '$textProxy' ) && nextNode.data.charAt( 0 ) == ' ';\n\n\t\t\tif ( data.charAt( data.length - 2 ) == ' ' || !nextNode || nextStartsWithSpace ) {\n\t\t\t\tdata = data.substr( 0, data.length - 1 ) + '\\u00A0';\n\t\t\t}\n\t\t}\n\n\t\t// 3. Create space+nbsp pairs.\n\t\treturn data.replace( / {2}/g, ' \\u00A0' );\n\t}\n\n\t/**\n\t * Checks whether given node ends with a space character after changing appropriate space characters to `&nbsp;`s.\n\t *\n\t * @private\n\t * @param {module:engine/view/text~Text} node Node to check.\n\t * @returns {Boolean} `true` if given `node` ends with space, `false` otherwise.\n\t */\n\tprivate _nodeEndsWithSpace( node: ViewTextProxy ): boolean {\n\t\tif ( node.getAncestors().some( parent => this.preElements.includes( ( parent as ViewElement ).name ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst data = this._processDataFromViewText( node );\n\n\t\treturn data.charAt( data.length - 1 ) == ' ';\n\t}\n\n\t/**\n\t * Takes text data from native `Text` node and processes it to a correct {@link module:engine/view/text~Text view text node} data.\n\t *\n\t * Following changes are done:\n\t *\n\t * * multiple whitespaces are replaced to a single space,\n\t * * space at the beginning of a text node is removed if it is the first text node in its container\n\t * element or if the previous text node ends with a space character,\n\t * * space at the end of the text node is removed if there are two spaces at the end of a node or if next node\n\t * starts with a space or if it is the last text node in its container\n\t * * nbsps are converted to spaces.\n\t *\n\t * @param {Node} node DOM text node to process.\n\t * @returns {String} Processed data.\n\t * @private\n\t */\n\tprivate _processDataFromDomText( node: DomText ): string {\n\t\tlet data = node.data;\n\n\t\tif ( _hasDomParentOfType( node, this.preElements ) ) {\n\t\t\treturn getDataWithoutFiller( node );\n\t\t}\n\n\t\t// Change all consecutive whitespace characters (from the [ \\n\\t\\r] set –\n\t\t// see https://github.com/ckeditor/ckeditor5-engine/issues/822#issuecomment-311670249) to a single space character.\n\t\t// That's how multiple whitespaces are treated when rendered, so we normalize those whitespaces.\n\t\t// We're replacing 1+ (and not 2+) to also normalize singular \\n\\t\\r characters (#822).\n\t\tdata = data.replace( /[ \\n\\t\\r]{1,}/g, ' ' );\n\n\t\tconst prevNode = this._getTouchingInlineDomNode( node, false );\n\t\tconst nextNode = this._getTouchingInlineDomNode( node, true );\n\n\t\tconst shouldLeftTrim = this._checkShouldLeftTrimDomText( node, prevNode );\n\t\tconst shouldRightTrim = this._checkShouldRightTrimDomText( node, nextNode );\n\n\t\t// If the previous dom text node does not exist or it ends by whitespace character, remove space character from the beginning\n\t\t// of this text node. Such space character is treated as a whitespace.\n\t\tif ( shouldLeftTrim ) {\n\t\t\tdata = data.replace( /^ /, '' );\n\t\t}\n\n\t\t// If the next text node does not exist remove space character from the end of this text node.\n\t\tif ( shouldRightTrim ) {\n\t\t\tdata = data.replace( / $/, '' );\n\t\t}\n\n\t\t// At the beginning and end of a block element, Firefox inserts normal space + <br> instead of non-breaking space.\n\t\t// This means that the text node starts/end with normal space instead of non-breaking space.\n\t\t// This causes a problem because the normal space would be removed in `.replace` calls above. To prevent that,\n\t\t// the inline filler is removed only after the data is initially processed (by the `.replace` above). See ckeditor5#692.\n\t\tdata = getDataWithoutFiller( new Text( data ) );\n\n\t\t// At this point we should have removed all whitespaces from DOM text data.\n\t\t//\n\t\t// Now, We will reverse the process that happens in `_processDataFromViewText`.\n\t\t//\n\t\t// We have to change &nbsp; chars, that were in DOM text data because of rendering reasons, to spaces.\n\t\t// First, change all ` \\u00A0` pairs (space + &nbsp;) to two spaces. DOM converter changes two spaces from model/view to\n\t\t// ` \\u00A0` to ensure proper rendering. Since here we convert back, we recognize those pairs and change them back to `  `.\n\t\tdata = data.replace( / \\u00A0/g, '  ' );\n\n\t\tconst isNextNodeInlineObjectElement = nextNode && this.isElement( nextNode ) && nextNode.tagName != 'BR';\n\t\tconst isNextNodeStartingWithSpace = nextNode && isText( nextNode ) && nextNode.data.charAt( 0 ) == ' ';\n\n\t\t// Then, let's change the last nbsp to a space.\n\t\tif ( /( |\\u00A0)\\u00A0$/.test( data ) || !nextNode || isNextNodeInlineObjectElement || isNextNodeStartingWithSpace ) {\n\t\t\tdata = data.replace( /\\u00A0$/, ' ' );\n\t\t}\n\n\t\t// Then, change &nbsp; character that is at the beginning of the text node to space character.\n\t\t// We do that replacement only if this is the first node or the previous node ends on whitespace character.\n\t\tif ( shouldLeftTrim || prevNode && this.isElement( prevNode ) && prevNode.tagName != 'BR' ) {\n\t\t\tdata = data.replace( /^\\u00A0/, ' ' );\n\t\t}\n\n\t\t// At this point, all whitespaces should be removed and all &nbsp; created for rendering reasons should be\n\t\t// changed to normal space. All left &nbsp; are &nbsp; inserted intentionally.\n\t\treturn data;\n\t}\n\n\t/**\n\t * Helper function which checks if a DOM text node, preceded by the given `prevNode` should\n\t * be trimmed from the left side.\n\t *\n\t * @private\n\t * @param {Node} node\n\t * @param {Node} prevNode Either DOM text or `<br>` or one of `#inlineObjectElements`.\n\t */\n\tprivate _checkShouldLeftTrimDomText( node: DomText, prevNode: DomNode | null ): boolean {\n\t\tif ( !prevNode ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( this.isElement( prevNode ) ) {\n\t\t\treturn prevNode.tagName === 'BR';\n\t\t}\n\n\t\t// Shouldn't left trim if previous node is a node that was encountered as a raw content node.\n\t\tif ( this._encounteredRawContentDomNodes.has( node.previousSibling as any ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn /[^\\S\\u00A0]/.test( ( prevNode as DomText ).data.charAt( ( prevNode as DomText ).data.length - 1 ) );\n\t}\n\n\t/**\n\t * Helper function which checks if a DOM text node, succeeded by the given `nextNode` should\n\t * be trimmed from the right side.\n\t *\n\t * @private\n\t * @param {Node} node\n\t * @param {Node} nextNode Either DOM text or `<br>` or one of `#inlineObjectElements`.\n\t */\n\tprivate _checkShouldRightTrimDomText( node: DomText, nextNode: DomNode | null ): boolean {\n\t\tif ( nextNode ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !startsWithFiller( node );\n\t}\n\n\t/**\n\t * Helper function. For given {@link module:engine/view/text~Text view text node}, it finds previous or next sibling\n\t * that is contained in the same container element. If there is no such sibling, `null` is returned.\n\t *\n\t * @private\n\t * @param {module:engine/view/text~Text} node Reference node.\n\t * @param {Boolean} getNext\n\t * @returns {module:engine/view/text~Text|module:engine/view/element~Element|null} Touching text node, an inline object\n\t * or `null` if there is no next or previous touching text node.\n\t */\n\tprivate _getTouchingInlineViewNode( node: ViewText, getNext: boolean ): ViewElement | ViewTextProxy | null {\n\t\tconst treeWalker = new ViewTreeWalker( {\n\t\t\tstartPosition: getNext ? ViewPosition._createAfter( node ) : ViewPosition._createBefore( node ),\n\t\t\tdirection: getNext ? 'forward' : 'backward'\n\t\t} );\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\t// Found an inline object (for example an image).\n\t\t\tif ( value.item.is( 'element' ) && this.inlineObjectElements.includes( value.item.name ) ) {\n\t\t\t\treturn value.item;\n\t\t\t}\n\t\t\t// ViewContainerElement is found on a way to next ViewText node, so given `node` was first/last\n\t\t\t// text node in its container element.\n\t\t\telse if ( value.item.is( 'containerElement' ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t\t// <br> found – it works like a block boundary, so do not scan further.\n\t\t\telse if ( value.item.is( 'element', 'br' ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t\t// Found a text node in the same container element.\n\t\t\telse if ( value.item.is( '$textProxy' ) ) {\n\t\t\t\treturn value.item;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Helper function. For the given text node, it finds the closest touching node which is either\n\t * a text, `<br>` or an {@link #inlineObjectElements inline object}.\n\t *\n\t * If no such node is found, `null` is returned.\n\t *\n\t * For instance, in the following DOM structure:\n\t *\n\t *\t\t<p>foo<b>bar</b><br>bom</p>\n\t *\n\t * * `foo` doesn't have its previous touching inline node (`null` is returned),\n\t * * `foo`'s next touching inline node is `bar`\n\t * * `bar`'s next touching inline node is `<br>`\n\t *\n\t * This method returns text nodes and `<br>` elements because these types of nodes affect how\n\t * spaces in the given text node need to be converted.\n\t *\n\t * @private\n\t * @param {Text} node\n\t * @param {Boolean} getNext\n\t * @returns {Text|Element|null}\n\t */\n\tprivate _getTouchingInlineDomNode( node: DomText, getNext: boolean ): DomNode | null {\n\t\tif ( !node.parentNode ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst stepInto = getNext ? 'firstChild' : 'lastChild';\n\t\tconst stepOver = getNext ? 'nextSibling' : 'previousSibling';\n\n\t\tlet skipChildren = true;\n\t\tlet returnNode: DomNode | null = node;\n\n\t\tdo {\n\t\t\tif ( !skipChildren && returnNode[ stepInto ] ) {\n\t\t\t\treturnNode = returnNode[ stepInto ];\n\t\t\t} else if ( returnNode[ stepOver ] ) {\n\t\t\t\treturnNode = returnNode[ stepOver ];\n\t\t\t\tskipChildren = false;\n\t\t\t} else {\n\t\t\t\treturnNode = returnNode.parentNode;\n\t\t\t\tskipChildren = true;\n\t\t\t}\n\n\t\t\tif ( !returnNode || this._isBlockElement( returnNode ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t} while (\n\t\t\t!( isText( returnNode ) || ( returnNode as DomElement ).tagName == 'BR' || this._isInlineObjectElement( returnNode ) )\n\t\t);\n\n\t\treturn returnNode;\n\t}\n\n\t/**\n\t * Returns `true` if a DOM node belongs to {@link #blockElements}. `false` otherwise.\n\t *\n\t * @private\n\t * @param {Node} node\n\t * @returns {Boolean}\n\t */\n\tprivate _isBlockElement( node: DomNode ): boolean {\n\t\treturn this.isElement( node ) && this.blockElements.includes( node.tagName.toLowerCase() );\n\t}\n\n\t/**\n\t * Returns `true` if a DOM node belongs to {@link #inlineObjectElements}. `false` otherwise.\n\t *\n\t * @private\n\t * @param {Node} node\n\t * @returns {Boolean}\n\t */\n\tprivate _isInlineObjectElement( node: DomNode ): boolean {\n\t\treturn this.isElement( node ) && this.inlineObjectElements.includes( node.tagName.toLowerCase() );\n\t}\n\n\t/**\n\t * Creates view element basing on the node type.\n\t *\n\t * @private\n\t * @param {Node} node DOM node to check.\n\t * @param {Object} options Conversion options. See {@link module:engine/view/domconverter~DomConverter#domToView} options parameter.\n\t * @returns {Element}\n\t */\n\tprivate _createViewElement( node: DomNode, options: { keepOriginalCase?: boolean } ): ViewElement {\n\t\tif ( isComment( node ) ) {\n\t\t\treturn new ViewUIElement( this.document, '$comment' );\n\t\t}\n\n\t\tconst viewName = options.keepOriginalCase ? ( node as DomElement ).tagName : ( node as DomElement ).tagName.toLowerCase();\n\n\t\treturn new ViewElement( this.document, viewName );\n\t}\n\n\t/**\n\t * Checks if view element's content should be treated as a raw data.\n\t *\n\t * @private\n\t * @param {Element} viewElement View element to check.\n\t * @param {Object} options Conversion options. See {@link module:engine/view/domconverter~DomConverter#domToView} options parameter.\n\t * @returns {Boolean}\n\t */\n\tprivate _isViewElementWithRawContent( viewElement: ViewElement, options: { withChildren?: boolean } ): boolean {\n\t\treturn options.withChildren !== false && !!this._rawContentElementMatcher.match( viewElement );\n\t}\n\n\t/**\n\t * Checks whether a given element name should be renamed in a current rendering mode.\n\t *\n\t * @private\n\t * @param {String} elementName The name of view element.\n\t * @returns {Boolean}\n\t */\n\tprivate _shouldRenameElement( elementName: string ): boolean {\n\t\tconst name = elementName.toLowerCase();\n\n\t\treturn this.renderingMode === 'editing' && this.unsafeElements.includes( name );\n\t}\n\n\t/**\n\t * Return a <span> element with a special attribute holding the name of the original element.\n\t * Optionally, copy all the attributes of the original element if that element is provided.\n\t *\n\t * @private\n\t * @param {String} elementName The name of view element.\n\t * @param {Element} [originalDomElement] The original DOM element to copy attributes and content from.\n\t * @returns {Element}\n\t */\n\tprivate _createReplacementDomElement( elementName: string, originalDomElement?: DomElement ): DomElement {\n\t\tconst newDomElement = this._domDocument.createElement( 'span' );\n\n\t\t// Mark the span replacing a script as hidden.\n\t\tnewDomElement.setAttribute( UNSAFE_ELEMENT_REPLACEMENT_ATTRIBUTE, elementName );\n\n\t\tif ( originalDomElement ) {\n\t\t\twhile ( originalDomElement.firstChild ) {\n\t\t\t\tnewDomElement.appendChild( originalDomElement.firstChild );\n\t\t\t}\n\n\t\t\tfor ( const attributeName of originalDomElement.getAttributeNames() ) {\n\t\t\t\tnewDomElement.setAttribute( attributeName, originalDomElement.getAttribute( attributeName )! );\n\t\t\t}\n\t\t}\n\n\t\treturn newDomElement;\n\t}\n}\n\n// Helper function.\n// Used to check if given native `Element` or `Text` node has parent with tag name from `types` array.\n//\n// @param {Node} node\n// @param {Array.<String>} types\n// @returns {Boolean} `true` if such parent exists or `false` if it does not.\nfunction _hasDomParentOfType( node: DomNode, types: Array<string> ) {\n\tconst parents = getAncestors( node );\n\n\treturn parents.some( parent => ( parent as DomElement ).tagName && types.includes( ( parent as DomElement ).tagName.toLowerCase() ) );\n}\n\n// A helper that executes given callback for each DOM node's ancestor, starting from the given node\n// and ending in document#documentElement.\n//\n// @param {Node} node\n// @param {Function} callback A callback to be executed for each ancestor.\nfunction forEachDomElementAncestor( element: DomElement, callback: ( node: DomElement ) => void ) {\n\tlet node: DomElement | null = element;\n\n\twhile ( node ) {\n\t\tcallback( node as DomElement );\n\t\tnode = node.parentElement;\n\t}\n}\n\n// Checks if given node is a nbsp block filler.\n//\n// A &nbsp; is a block filler only if it is a single child of a block element.\n//\n// @param {Node} domNode DOM node.\n// @param {Array.<String>} blockElements\n// @returns {Boolean}\nfunction isNbspBlockFiller( domNode: DomNode, blockElements: Array<string> ): boolean {\n\tconst isNBSP = domNode.isEqualNode( NBSP_FILLER_REF );\n\n\treturn isNBSP && hasBlockParent( domNode, blockElements ) && ( domNode as DomElement ).parentNode!.childNodes.length === 1;\n}\n\n// Checks if domNode has block parent.\n//\n// @param {Node} domNode DOM node.\n// @param {Array.<String>} blockElements\n// @returns {Boolean}\nfunction hasBlockParent( domNode: DomNode, blockElements: Array<string> ): boolean {\n\tconst parent = domNode.parentNode;\n\n\treturn !!parent && !!( parent as DomElement ).tagName && blockElements.includes( ( parent as DomElement ).tagName.toLowerCase() );\n}\n\n// Log to console the information about element that was replaced.\n// Check UNSAFE_ELEMENTS for all recognized unsafe elements.\n//\n// @param {String} elementName The name of the view element\nfunction _logUnsafeElement( elementName: string ): void {\n\tif ( elementName === 'script' ) {\n\t\tlogWarning( 'domconverter-unsafe-script-element-detected' );\n\t}\n\n\tif ( elementName === 'style' ) {\n\t\tlogWarning( 'domconverter-unsafe-style-element-detected' );\n\t}\n}\n\n/**\n * Enum representing the type of the block filler.\n *\n * Possible values:\n *\n * * `br` &ndash; For the `<br data-cke-filler=\"true\">` block filler used in the editing view.\n * * `nbsp` &ndash; For the `&nbsp;` block fillers used in the data.\n * * `markedNbsp` &ndash; For the `&nbsp;` block fillers wrapped in `<span>` elements: `<span data-cke-filler=\"true\">&nbsp;</span>`\n * used in the data.\n *\n * @typedef {String} module:engine/view/filler~BlockFillerMode\n */\ntype BlockFillerMode = 'br' | 'nbsp' | 'markedNbsp';\n\n/**\n * While rendering the editor content, the {@link module:engine/view/domconverter~DomConverter} detected a `<script>` element that may\n * disrupt the editing experience. To avoid this, the `<script>` element was replaced with `<span data-ck-unsafe-element=\"script\"></span>`.\n *\n * @error domconverter-unsafe-script-element-detected\n */\n\n/**\n * While rendering the editor content, the {@link module:engine/view/domconverter~DomConverter} detected a `<style>` element that may affect\n * the editing experience. To avoid this, the `<style>` element was replaced with `<span data-ck-unsafe-element=\"style\"></span>`.\n *\n * @error domconverter-unsafe-style-element-detected\n */\n\n/**\n * The {@link module:engine/view/domconverter~DomConverter} detected an interactive attribute in the\n * {@glink framework/guides/architecture/editing-engine#editing-pipeline editing pipeline}. For the best\n * editing experience, the attribute was renamed to `data-ck-unsafe-attribute-[original attribute name]`.\n *\n * If you are the author of the plugin that generated this attribute and you want it to be preserved\n * in the editing pipeline, you can configure this when creating the element\n * using {@link module:engine/view/downcastwriter~DowncastWriter} during the\n * {@glink framework/guides/architecture/editing-engine#conversion model–view conversion}. Methods such as\n * {@link module:engine/view/downcastwriter~DowncastWriter#createContainerElement},\n * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement}, or\n * {@link module:engine/view/downcastwriter~DowncastWriter#createEmptyElement}\n * accept an option that will disable filtering of specific attributes:\n *\n *\t\tconst paragraph = writer.createContainerElement( 'p',\n *\t\t\t{\n *\t\t\t\tclass: 'clickable-paragraph',\n *\t\t\t\tonclick: 'alert( \"Paragraph clicked!\" )'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\t// Make sure the \"onclick\" attribute will pass through.\n *\t\t\t\trenderUnsafeAttributes: [ 'onclick' ]\n *\t\t\t}\n *\t\t);\n *\n * @error domconverter-unsafe-attribute-detected\n * @param {HTMLElement} domElement The DOM element the attribute was set on.\n * @param {String} key The original name of the attribute\n * @param {String} value The value of the original attribute\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/observer\n */\n\nimport { DomEmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from '../document';\nimport type View from '../view';\n\n/**\n * Abstract base observer class. Observers are classes which listen to DOM events, do the preliminary\n * processing and fire events on the {@link module:engine/view/document~Document} objects.\n * Observers can also add features to the view, for instance by updating its status or marking elements\n * which need a refresh on DOM events.\n *\n * @abstract\n */\nexport default abstract class Observer extends DomEmitterMixin() {\n\tpublic readonly view: View;\n\tpublic readonly document: Document;\n\tpublic readonly isEnabled: false;\n\n\t/**\n\t * Creates an instance of the observer.\n\t *\n\t * @param {module:engine/view/view~View} view\n\t */\n\tconstructor( view: View ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * An instance of the view controller.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/view~View}\n\t\t */\n\t\tthis.view = view;\n\n\t\t/**\n\t\t * A reference to the {@link module:engine/view/document~Document} object.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = view.document;\n\n\t\t/**\n\t\t * The state of the observer. If it is disabled, no events will be fired.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis.isEnabled = false;\n\t}\n\n\t/**\n\t * Enables the observer. This method is called when the observer is registered to the\n\t * {@link module:engine/view/view~View} and after {@link module:engine/view/view~View#forceRender rendering}\n\t * (all observers are {@link #disable disabled} before rendering).\n\t *\n\t * A typical use case for disabling observers is that mutation observers need to be disabled for the rendering.\n\t * However, a child class may not need to be disabled, so it can implement an empty method.\n\t *\n\t * @see module:engine/view/observer/observer~Observer#disable\n\t */\n\tpublic enable(): void {\n\t\t( this as any ).isEnabled = true;\n\t}\n\n\t/**\n\t * Disables the observer. This method is called before\n\t * {@link module:engine/view/view~View#forceRender rendering} to prevent firing events during rendering.\n\t *\n\t * @see module:engine/view/observer/observer~Observer#enable\n\t */\n\tpublic disable(): void {\n\t\t( this as any ).isEnabled = false;\n\t}\n\n\t/**\n\t * Disables and destroys the observer, among others removes event listeners created by the observer.\n\t */\n\tpublic destroy(): void {\n\t\tthis.disable();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Checks whether a given DOM event should be ignored (should not be turned into a synthetic view document event).\n\t *\n\t * Currently, an event will be ignored only if its target or any of its ancestors has the `data-cke-ignore-events` attribute.\n\t * This attribute can be used inside the structures generated by\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `DowncastWriter#createUIElement()`} to ignore events\n\t * fired within a UI that should be excluded from CKEditor 5's realms.\n\t *\n\t * @param {Node} domTarget The DOM event target to check (usually an element, sometimes a text node and\n\t * potentially sometimes a document, too).\n\t * @returns {Boolean} Whether this event should be ignored by the observer.\n\t */\n\tpublic checkShouldIgnoreEventFromTarget( domTarget: Node ): boolean {\n\t\tif ( domTarget && domTarget.nodeType === 3 ) {\n\t\t\tdomTarget = domTarget.parentNode as any;\n\t\t}\n\n\t\tif ( !domTarget || domTarget.nodeType !== 1 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn ( domTarget as any ).matches( '[data-cke-ignore-events], [data-cke-ignore-events] *' );\n\t}\n\n\t/**\n\t * Starts observing the given root element.\n\t *\n\t * @method #observe\n\t * @param {HTMLElement} domElement\n\t * @param {String} name The name of the root element.\n\t */\n\n\tpublic abstract observe( domElement: HTMLElement, name: string ): void;\n}\n\n/**\n * TODO\n * The for all all classes that inherit from Observer but excludes the abstract Observer itself.\n */\nexport type ObserverConstructor = new ( view: View ) => Observer;\n","import copyObject from './_copyObject.js';\nimport createAssigner from './_createAssigner.js';\nimport keysIn from './keysIn.js';\n\n/**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n * }\n *\n * function Bar() {\n *   this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\nvar assignIn = createAssigner(function(object, source) {\n  copyObject(source, keysIn(source), object);\n});\n\nexport default assignIn;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/domeventdata\n */\n\nimport { extend } from 'lodash-es';\n\nimport type Document from '../document';\nimport type Element from '../element';\nimport type View from '../view';\n\n/**\n * Information about a DOM event in context of the {@link module:engine/view/document~Document}.\n * It wraps the native event, which usually should not be used as the wrapper contains\n * additional data (like key code for keyboard events).\n */\nexport default class DomEventData<TEvent extends Event = Event> {\n\tpublic readonly view: View;\n\tpublic readonly document: Document;\n\tpublic readonly domEvent: TEvent;\n\tpublic readonly domTarget: HTMLElement;\n\n\t/**\n\t * @param {module:engine/view/view~View} view The instance of the view controller.\n\t * @param {Event} domEvent The DOM event.\n\t * @param {Object} [additionalData] Additional properties that the instance should contain.\n\t */\n\tconstructor( view: View, domEvent: TEvent, additionalData?: object ) {\n\t\t/**\n\t\t * Instance of the view controller.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/view~View} module:engine/view/observer/observer~Observer.DomEvent#view\n\t\t */\n\t\tthis.view = view;\n\n\t\t/**\n\t\t * The instance of the document.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/document~Document} module:engine/view/observer/observer~Observer.DomEvent#document\n\t\t */\n\t\tthis.document = view.document;\n\n\t\t/**\n\t\t * The DOM event.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Event} module:engine/view/observer/observer~Observer.DomEvent#domEvent\n\t\t */\n\t\tthis.domEvent = domEvent;\n\n\t\t/**\n\t\t * The DOM target.\n\t\t *\n\t\t * @readonly\n\t\t * @member {HTMLElement} module:engine/view/observer/observer~Observer.DomEvent#target\n\t\t */\n\t\tthis.domTarget = domEvent.target as any;\n\n\t\textend( this, additionalData );\n\t}\n\n\t/**\n\t * The tree view element representing the target.\n\t *\n\t * @readonly\n\t * @type module:engine/view/element~Element\n\t */\n\tpublic get target(): Element {\n\t\treturn this.view.domConverter.mapDomToView( this.domTarget ) as Element;\n\t}\n\n\t/**\n\t * Prevents the native's event default action.\n\t */\n\tpublic preventDefault(): void {\n\t\tthis.domEvent.preventDefault();\n\t}\n\n\t/**\n\t * Stops native event propagation.\n\t */\n\tpublic stopPropagation(): void {\n\t\tthis.domEvent.stopPropagation();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/domeventobserver\n */\n\nimport Observer from './observer';\nimport DomEventData from './domeventdata';\nimport type View from '../view';\n\nimport type { EventInfo } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Base class for DOM event observers. This class handles\n * {@link module:engine/view/observer/observer~Observer#observe adding} listeners to DOM elements,\n * {@link module:engine/view/observer/observer~Observer#disable disabling} and\n * {@link module:engine/view/observer/observer~Observer#enable re-enabling} events.\n * Child class needs to define\n * {@link module:engine/view/observer/domeventobserver~DomEventObserver#domEventType DOM event type} and\n * {@link module:engine/view/observer/domeventobserver~DomEventObserver#onDomEvent callback}.\n *\n * For instance:\n *\n *\t\tclass ClickObserver extends DomEventObserver {\n *\t\t\t// It can also be defined as a normal property in the constructor.\n *\t\t\tget domEventType() {\n *\t\t\t\treturn 'click';\n *\t\t\t}\n *\n *\t\t\tonDomEvent( domEvent ) {\n *\t\t\t\tthis.fire( 'click', domEvent );\n *\t\t\t}\n *\t\t}\n *\n * @extends module:engine/view/observer/observer~Observer\n */\n\nexport default abstract class DomEventObserver<\n\tEventType extends keyof HTMLElementEventMap,\n\tAdditionalData extends object = object\n> extends Observer {\n\tpublic domEventType!: EventType | Array<EventType>;\n\n\tpublic useCapture: boolean;\n\n\t/**\n\t * Type of the DOM event the observer should listen to. Array of types can be defined\n\t * if the observer should listen to multiple DOM events.\n\t *\n\t * @readonly\n\t * @member {String|Array.<String>} #domEventType\n\t */\n\n\t/**\n\t * Callback which should be called when the DOM event occurred. Note that the callback will not be called if\n\t * observer {@link #isEnabled is not enabled}.\n\t *\n\t * @see #domEventType\n\t * @abstract\n\t * @method #onDomEvent\n\t */\n\n\tpublic abstract onDomEvent( event: HTMLElementEventMap[ EventType ] ): void;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\t/**\n\t\t * If set to `true` DOM events will be listened on the capturing phase.\n\t\t * Default value is `false`.\n\t\t *\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis.useCapture = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe( domElement: HTMLElement ): void {\n\t\tconst types = typeof this.domEventType == 'string' ? [ this.domEventType ] : this.domEventType;\n\n\t\ttypes.forEach( type => {\n\t\t\tthis.listenTo( domElement, type, ( eventInfo, domEvent ) => {\n\t\t\t\tif ( this.isEnabled && !this.checkShouldIgnoreEventFromTarget( domEvent.target as any ) ) {\n\t\t\t\t\tthis.onDomEvent( domEvent );\n\t\t\t\t}\n\t\t\t}, { useCapture: this.useCapture } );\n\t\t} );\n\t}\n\n\t/**\n\t * Calls `Document#fire()` if observer {@link #isEnabled is enabled}.\n\t *\n\t * @see module:utils/emittermixin~EmitterMixin#fire\n\t * @param {String} eventType The event type (name).\n\t * @param {Event} domEvent The DOM event.\n\t * @param {Object} [additionalData] The additional data which should extend the\n\t * {@link module:engine/view/observer/domeventdata~DomEventData event data} object.\n\t */\n\tpublic override fire( eventType: string | EventInfo, domEvent: Event, additionalData?: AdditionalData ): void {\n\t\tif ( this.isEnabled ) {\n\t\t\tthis.document.fire( eventType, new DomEventData( this.view, domEvent, additionalData ) );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/keyobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type View from '../view';\nimport type DomEventData from './domeventdata';\nimport { getCode, type KeystrokeInfo } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Observer for events connected with pressing keyboard keys.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class KeyObserver extends DomEventObserver<'keydown' | 'keyup', KeystrokeInfo & { keystroke: number }> {\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.domEventType = [ 'keydown', 'keyup' ];\n\t}\n\n\tpublic onDomEvent( domEvt: KeyboardEvent ): void {\n\t\tconst data = {\n\t\t\tkeyCode: domEvt.keyCode,\n\n\t\t\taltKey: domEvt.altKey,\n\t\t\tctrlKey: domEvt.ctrlKey,\n\t\t\tshiftKey: domEvt.shiftKey,\n\t\t\tmetaKey: domEvt.metaKey,\n\n\t\t\tget keystroke() {\n\t\t\t\treturn getCode( this );\n\t\t\t}\n\t\t};\n\n\t\tthis.fire( domEvt.type, domEvt, data );\n\t}\n}\n\nexport type ViewDocumentKeyEvent = {\n\tname: 'keydown' | 'keyup';\n\targs: [ data: DomEventData<KeyboardEvent> & KeystrokeInfo & { keystroke: number } ];\n};\n\n/**\n * Fired when a key has been pressed.\n *\n * Introduced by {@link module:engine/view/observer/keyobserver~KeyObserver}.\n *\n * Note that because {@link module:engine/view/observer/keyobserver~KeyObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/keyobserver~KeyObserver\n * @event module:engine/view/document~Document#event:keydown\n * @param {module:engine/view/observer/keyobserver~KeyEventData} keyEventData\n */\n\n/**\n * Fired when a key has been released.\n *\n * Introduced by {@link module:engine/view/observer/keyobserver~KeyObserver}.\n *\n * Note that because {@link module:engine/view/observer/keyobserver~KeyObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/keyobserver~KeyObserver\n * @event module:engine/view/document~Document#event:keyup\n * @param {module:engine/view/observer/keyobserver~KeyEventData} keyEventData\n */\n\n/**\n * The value of both events - {@link module:engine/view/document~Document#event:keydown} and\n * {@link module:engine/view/document~Document#event:keyup}.\n *\n * @class module:engine/view/observer/keyobserver~KeyEventData\n * @extends module:engine/view/observer/domeventdata~DomEventData\n * @implements module:utils/keyboard~KeystrokeInfo\n */\n\n/**\n * Code of the whole keystroke. See {@link module:utils/keyboard~getCode}.\n *\n * @readonly\n * @member {Number} module:engine/view/observer/keyobserver~KeyEventData#keystroke\n */\n","import root from './_root.js';\n\n/**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n *   console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\nvar now = function() {\n  return root.Date.now();\n};\n\nexport default now;\n","/** Used to match a single whitespace character. */\nvar reWhitespace = /\\s/;\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\nfunction trimmedEndIndex(string) {\n  var index = string.length;\n\n  while (index-- && reWhitespace.test(string.charAt(index))) {}\n  return index;\n}\n\nexport default trimmedEndIndex;\n","import trimmedEndIndex from './_trimmedEndIndex.js';\n\n/** Used to match leading whitespace. */\nvar reTrimStart = /^\\s+/;\n\n/**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\nfunction baseTrim(string) {\n  return string\n    ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n    : string;\n}\n\nexport default baseTrim;\n","import baseTrim from './_baseTrim.js';\nimport isObject from './isObject.js';\nimport isSymbol from './isSymbol.js';\n\n/** Used as references for various `Number` constants. */\nvar NAN = 0 / 0;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n  if (typeof value == 'number') {\n    return value;\n  }\n  if (isSymbol(value)) {\n    return NAN;\n  }\n  if (isObject(value)) {\n    var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n    value = isObject(other) ? (other + '') : other;\n  }\n  if (typeof value != 'string') {\n    return value === 0 ? value : +value;\n  }\n  value = baseTrim(value);\n  var isBinary = reIsBinary.test(value);\n  return (isBinary || reIsOctal.test(value))\n    ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n    : (reIsBadHex.test(value) ? NAN : +value);\n}\n\nexport default toNumber;\n","import isObject from './isObject.js';\nimport now from './now.js';\nimport toNumber from './toNumber.js';\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max,\n    nativeMin = Math.min;\n\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n *  Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n *  The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n *  Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n *   'leading': true,\n *   'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\nfunction debounce(func, wait, options) {\n  var lastArgs,\n      lastThis,\n      maxWait,\n      result,\n      timerId,\n      lastCallTime,\n      lastInvokeTime = 0,\n      leading = false,\n      maxing = false,\n      trailing = true;\n\n  if (typeof func != 'function') {\n    throw new TypeError(FUNC_ERROR_TEXT);\n  }\n  wait = toNumber(wait) || 0;\n  if (isObject(options)) {\n    leading = !!options.leading;\n    maxing = 'maxWait' in options;\n    maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n    trailing = 'trailing' in options ? !!options.trailing : trailing;\n  }\n\n  function invokeFunc(time) {\n    var args = lastArgs,\n        thisArg = lastThis;\n\n    lastArgs = lastThis = undefined;\n    lastInvokeTime = time;\n    result = func.apply(thisArg, args);\n    return result;\n  }\n\n  function leadingEdge(time) {\n    // Reset any `maxWait` timer.\n    lastInvokeTime = time;\n    // Start the timer for the trailing edge.\n    timerId = setTimeout(timerExpired, wait);\n    // Invoke the leading edge.\n    return leading ? invokeFunc(time) : result;\n  }\n\n  function remainingWait(time) {\n    var timeSinceLastCall = time - lastCallTime,\n        timeSinceLastInvoke = time - lastInvokeTime,\n        timeWaiting = wait - timeSinceLastCall;\n\n    return maxing\n      ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n      : timeWaiting;\n  }\n\n  function shouldInvoke(time) {\n    var timeSinceLastCall = time - lastCallTime,\n        timeSinceLastInvoke = time - lastInvokeTime;\n\n    // Either this is the first call, activity has stopped and we're at the\n    // trailing edge, the system time has gone backwards and we're treating\n    // it as the trailing edge, or we've hit the `maxWait` limit.\n    return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n      (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n  }\n\n  function timerExpired() {\n    var time = now();\n    if (shouldInvoke(time)) {\n      return trailingEdge(time);\n    }\n    // Restart the timer.\n    timerId = setTimeout(timerExpired, remainingWait(time));\n  }\n\n  function trailingEdge(time) {\n    timerId = undefined;\n\n    // Only invoke if we have `lastArgs` which means `func` has been\n    // debounced at least once.\n    if (trailing && lastArgs) {\n      return invokeFunc(time);\n    }\n    lastArgs = lastThis = undefined;\n    return result;\n  }\n\n  function cancel() {\n    if (timerId !== undefined) {\n      clearTimeout(timerId);\n    }\n    lastInvokeTime = 0;\n    lastArgs = lastCallTime = lastThis = timerId = undefined;\n  }\n\n  function flush() {\n    return timerId === undefined ? result : trailingEdge(now());\n  }\n\n  function debounced() {\n    var time = now(),\n        isInvoking = shouldInvoke(time);\n\n    lastArgs = arguments;\n    lastThis = this;\n    lastCallTime = time;\n\n    if (isInvoking) {\n      if (timerId === undefined) {\n        return leadingEdge(lastCallTime);\n      }\n      if (maxing) {\n        // Handle invocations in a tight loop.\n        clearTimeout(timerId);\n        timerId = setTimeout(timerExpired, wait);\n        return invokeFunc(lastCallTime);\n      }\n    }\n    if (timerId === undefined) {\n      timerId = setTimeout(timerExpired, wait);\n    }\n    return result;\n  }\n  debounced.cancel = cancel;\n  debounced.flush = flush;\n  return debounced;\n}\n\nexport default debounce;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/fakeselectionobserver\n */\n\nimport Observer from './observer';\nimport type { ViewDocumentArrowKeyEvent } from './arrowkeysobserver';\nimport ViewSelection from '../selection';\nimport type View from '../view';\nimport type {\n\tViewDocumentSelectionEvent,\n\tViewDocumentSelectionEventData\n} from './selectionobserver';\nimport { keyCodes } from '@ckeditor/ckeditor5-utils';\nimport { debounce, type DebouncedFunc } from 'lodash-es';\n\n/**\n * Fake selection observer class. If view selection is fake it is placed in dummy DOM container. This observer listens\n * on {@link module:engine/view/document~Document#event:keydown keydown} events and handles moving fake view selection to the correct place\n * if arrow keys are pressed.\n * Fires {@link module:engine/view/document~Document#event:selectionChange selectionChange event} simulating natural behaviour of\n * {@link module:engine/view/observer/selectionobserver~SelectionObserver SelectionObserver}.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class FakeSelectionObserver extends Observer {\n\tprivate readonly _fireSelectionChangeDoneDebounced: DebouncedFunc<( data: ViewDocumentSelectionEventData ) => void>;\n\n\t/**\n\t * Creates new FakeSelectionObserver instance.\n\t *\n\t * @param {module:engine/view/view~View} view\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\t/**\n\t\t * Fires debounced event `selectionChangeDone`. It uses `lodash#debounce` method to delay function call.\n\t\t *\n\t\t * @private\n\t\t * @param {Object} data Selection change data.\n\t\t * @method #_fireSelectionChangeDoneDebounced\n\t\t */\n\t\tthis._fireSelectionChangeDoneDebounced = debounce( data => {\n\t\t\tthis.document.fire<ViewDocumentSelectionEvent>( 'selectionChangeDone', data );\n\t\t}, 200 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe(): void {\n\t\tconst document = this.document;\n\n\t\tdocument.on<ViewDocumentArrowKeyEvent>( 'arrowKey', ( eventInfo, data ) => {\n\t\t\tconst selection = document.selection;\n\n\t\t\tif ( selection.isFake && this.isEnabled ) {\n\t\t\t\t// Prevents default key down handling - no selection change will occur.\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\t\t}, { context: '$capture' } );\n\n\t\tdocument.on<ViewDocumentArrowKeyEvent>( 'arrowKey', ( eventInfo, data ) => {\n\t\t\tconst selection = document.selection;\n\n\t\t\tif ( selection.isFake && this.isEnabled ) {\n\t\t\t\tthis._handleSelectionMove( data.keyCode );\n\t\t\t}\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._fireSelectionChangeDoneDebounced.cancel();\n\t}\n\n\t/**\n\t * Handles collapsing view selection according to given key code. If left or up key is provided - new selection will be\n\t * collapsed to left. If right or down key is pressed - new selection will be collapsed to right.\n\t *\n\t * This method fires {@link module:engine/view/document~Document#event:selectionChange} and\n\t * {@link module:engine/view/document~Document#event:selectionChangeDone} events imitating behaviour of\n\t * {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n\t *\n\t * @private\n\t * @param {Number} keyCode\n\t * @fires module:engine/view/document~Document#event:selectionChange\n\t * @fires module:engine/view/document~Document#event:selectionChangeDone\n\t */\n\tprivate _handleSelectionMove( keyCode: number ): void {\n\t\tconst selection = this.document.selection;\n\t\tconst newSelection = new ViewSelection( selection.getRanges(), { backward: selection.isBackward, fake: false } );\n\n\t\t// Left or up arrow pressed - move selection to start.\n\t\tif ( keyCode == keyCodes.arrowleft || keyCode == keyCodes.arrowup ) {\n\t\t\tnewSelection.setTo( newSelection.getFirstPosition() );\n\t\t}\n\n\t\t// Right or down arrow pressed - move selection to end.\n\t\tif ( keyCode == keyCodes.arrowright || keyCode == keyCodes.arrowdown ) {\n\t\t\tnewSelection.setTo( newSelection.getLastPosition() );\n\t\t}\n\n\t\tconst data = {\n\t\t\toldSelection: selection,\n\t\t\tnewSelection,\n\t\t\tdomSelection: null\n\t\t};\n\n\t\t// Fire dummy selection change event.\n\t\tthis.document.fire<ViewDocumentSelectionEvent>( 'selectionChange', data );\n\n\t\t// Call` #_fireSelectionChangeDoneDebounced` every time when `selectionChange` event is fired.\n\t\t// This function is debounced what means that `selectionChangeDone` event will be fired only when\n\t\t// defined int the function time will elapse since the last time the function was called.\n\t\t// So `selectionChangeDone` will be fired when selection will stop changing.\n\t\tthis._fireSelectionChangeDoneDebounced( data );\n\t}\n}\n","/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\nfunction setCacheAdd(value) {\n  this.__data__.set(value, HASH_UNDEFINED);\n  return this;\n}\n\nexport default setCacheAdd;\n","/**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\nfunction setCacheHas(value) {\n  return this.__data__.has(value);\n}\n\nexport default setCacheHas;\n","import MapCache from './_MapCache.js';\nimport setCacheAdd from './_setCacheAdd.js';\nimport setCacheHas from './_setCacheHas.js';\n\n/**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\nfunction SetCache(values) {\n  var index = -1,\n      length = values == null ? 0 : values.length;\n\n  this.__data__ = new MapCache;\n  while (++index < length) {\n    this.add(values[index]);\n  }\n}\n\n// Add methods to `SetCache`.\nSetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\nSetCache.prototype.has = setCacheHas;\n\nexport default SetCache;\n","/**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n *  else `false`.\n */\nfunction arraySome(array, predicate) {\n  var index = -1,\n      length = array == null ? 0 : array.length;\n\n  while (++index < length) {\n    if (predicate(array[index], index, array)) {\n      return true;\n    }\n  }\n  return false;\n}\n\nexport default arraySome;\n","/**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction cacheHas(cache, key) {\n  return cache.has(key);\n}\n\nexport default cacheHas;\n","import SetCache from './_SetCache.js';\nimport arraySome from './_arraySome.js';\nimport cacheHas from './_cacheHas.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n    COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\nfunction equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n  var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n      arrLength = array.length,\n      othLength = other.length;\n\n  if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n    return false;\n  }\n  // Check that cyclic values are equal.\n  var arrStacked = stack.get(array);\n  var othStacked = stack.get(other);\n  if (arrStacked && othStacked) {\n    return arrStacked == other && othStacked == array;\n  }\n  var index = -1,\n      result = true,\n      seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n  stack.set(array, other);\n  stack.set(other, array);\n\n  // Ignore non-index properties.\n  while (++index < arrLength) {\n    var arrValue = array[index],\n        othValue = other[index];\n\n    if (customizer) {\n      var compared = isPartial\n        ? customizer(othValue, arrValue, index, other, array, stack)\n        : customizer(arrValue, othValue, index, array, other, stack);\n    }\n    if (compared !== undefined) {\n      if (compared) {\n        continue;\n      }\n      result = false;\n      break;\n    }\n    // Recursively compare arrays (susceptible to call stack limits).\n    if (seen) {\n      if (!arraySome(other, function(othValue, othIndex) {\n            if (!cacheHas(seen, othIndex) &&\n                (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n              return seen.push(othIndex);\n            }\n          })) {\n        result = false;\n        break;\n      }\n    } else if (!(\n          arrValue === othValue ||\n            equalFunc(arrValue, othValue, bitmask, customizer, stack)\n        )) {\n      result = false;\n      break;\n    }\n  }\n  stack['delete'](array);\n  stack['delete'](other);\n  return result;\n}\n\nexport default equalArrays;\n","/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n  var index = -1,\n      result = Array(map.size);\n\n  map.forEach(function(value, key) {\n    result[++index] = [key, value];\n  });\n  return result;\n}\n\nexport default mapToArray;\n","/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n  var index = -1,\n      result = Array(set.size);\n\n  set.forEach(function(value) {\n    result[++index] = value;\n  });\n  return result;\n}\n\nexport default setToArray;\n","import Symbol from './_Symbol.js';\nimport Uint8Array from './_Uint8Array.js';\nimport eq from './eq.js';\nimport equalArrays from './_equalArrays.js';\nimport mapToArray from './_mapToArray.js';\nimport setToArray from './_setToArray.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n    COMPARE_UNORDERED_FLAG = 2;\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    errorTag = '[object Error]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]';\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n  switch (tag) {\n    case dataViewTag:\n      if ((object.byteLength != other.byteLength) ||\n          (object.byteOffset != other.byteOffset)) {\n        return false;\n      }\n      object = object.buffer;\n      other = other.buffer;\n\n    case arrayBufferTag:\n      if ((object.byteLength != other.byteLength) ||\n          !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n        return false;\n      }\n      return true;\n\n    case boolTag:\n    case dateTag:\n    case numberTag:\n      // Coerce booleans to `1` or `0` and dates to milliseconds.\n      // Invalid dates are coerced to `NaN`.\n      return eq(+object, +other);\n\n    case errorTag:\n      return object.name == other.name && object.message == other.message;\n\n    case regexpTag:\n    case stringTag:\n      // Coerce regexes to strings and treat strings, primitives and objects,\n      // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n      // for more details.\n      return object == (other + '');\n\n    case mapTag:\n      var convert = mapToArray;\n\n    case setTag:\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n      convert || (convert = setToArray);\n\n      if (object.size != other.size && !isPartial) {\n        return false;\n      }\n      // Assume cyclic values are equal.\n      var stacked = stack.get(object);\n      if (stacked) {\n        return stacked == other;\n      }\n      bitmask |= COMPARE_UNORDERED_FLAG;\n\n      // Recursively compare objects (susceptible to call stack limits).\n      stack.set(object, other);\n      var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n      stack['delete'](object);\n      return result;\n\n    case symbolTag:\n      if (symbolValueOf) {\n        return symbolValueOf.call(object) == symbolValueOf.call(other);\n      }\n  }\n  return false;\n}\n\nexport default equalByTag;\n","import getAllKeys from './_getAllKeys.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n  var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n      objProps = getAllKeys(object),\n      objLength = objProps.length,\n      othProps = getAllKeys(other),\n      othLength = othProps.length;\n\n  if (objLength != othLength && !isPartial) {\n    return false;\n  }\n  var index = objLength;\n  while (index--) {\n    var key = objProps[index];\n    if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n      return false;\n    }\n  }\n  // Check that cyclic values are equal.\n  var objStacked = stack.get(object);\n  var othStacked = stack.get(other);\n  if (objStacked && othStacked) {\n    return objStacked == other && othStacked == object;\n  }\n  var result = true;\n  stack.set(object, other);\n  stack.set(other, object);\n\n  var skipCtor = isPartial;\n  while (++index < objLength) {\n    key = objProps[index];\n    var objValue = object[key],\n        othValue = other[key];\n\n    if (customizer) {\n      var compared = isPartial\n        ? customizer(othValue, objValue, key, other, object, stack)\n        : customizer(objValue, othValue, key, object, other, stack);\n    }\n    // Recursively compare objects (susceptible to call stack limits).\n    if (!(compared === undefined\n          ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n          : compared\n        )) {\n      result = false;\n      break;\n    }\n    skipCtor || (skipCtor = key == 'constructor');\n  }\n  if (result && !skipCtor) {\n    var objCtor = object.constructor,\n        othCtor = other.constructor;\n\n    // Non `Object` object instances with different constructors are not equal.\n    if (objCtor != othCtor &&\n        ('constructor' in object && 'constructor' in other) &&\n        !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n          typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n      result = false;\n    }\n  }\n  stack['delete'](object);\n  stack['delete'](other);\n  return result;\n}\n\nexport default equalObjects;\n","import Stack from './_Stack.js';\nimport equalArrays from './_equalArrays.js';\nimport equalByTag from './_equalByTag.js';\nimport equalObjects from './_equalObjects.js';\nimport getTag from './_getTag.js';\nimport isArray from './isArray.js';\nimport isBuffer from './isBuffer.js';\nimport isTypedArray from './isTypedArray.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n    arrayTag = '[object Array]',\n    objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n  var objIsArr = isArray(object),\n      othIsArr = isArray(other),\n      objTag = objIsArr ? arrayTag : getTag(object),\n      othTag = othIsArr ? arrayTag : getTag(other);\n\n  objTag = objTag == argsTag ? objectTag : objTag;\n  othTag = othTag == argsTag ? objectTag : othTag;\n\n  var objIsObj = objTag == objectTag,\n      othIsObj = othTag == objectTag,\n      isSameTag = objTag == othTag;\n\n  if (isSameTag && isBuffer(object)) {\n    if (!isBuffer(other)) {\n      return false;\n    }\n    objIsArr = true;\n    objIsObj = false;\n  }\n  if (isSameTag && !objIsObj) {\n    stack || (stack = new Stack);\n    return (objIsArr || isTypedArray(object))\n      ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n      : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n  }\n  if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n    var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n        othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n    if (objIsWrapped || othIsWrapped) {\n      var objUnwrapped = objIsWrapped ? object.value() : object,\n          othUnwrapped = othIsWrapped ? other.value() : other;\n\n      stack || (stack = new Stack);\n      return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n    }\n  }\n  if (!isSameTag) {\n    return false;\n  }\n  stack || (stack = new Stack);\n  return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n}\n\nexport default baseIsEqualDeep;\n","import baseIsEqualDeep from './_baseIsEqualDeep.js';\nimport isObjectLike from './isObjectLike.js';\n\n/**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n *  1 - Unordered comparison\n *  2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\nfunction baseIsEqual(value, other, bitmask, customizer, stack) {\n  if (value === other) {\n    return true;\n  }\n  if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n    return value !== value && other !== other;\n  }\n  return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n}\n\nexport default baseIsEqual;\n","import baseIsEqual from './_baseIsEqual.js';\n\n/**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n *   return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n *   if (isGreeting(objValue) && isGreeting(othValue)) {\n *     return true;\n *   }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\nfunction isEqualWith(value, other, customizer) {\n  customizer = typeof customizer == 'function' ? customizer : undefined;\n  var result = customizer ? customizer(value, other) : undefined;\n  return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n}\n\nexport default isEqualWith;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/mutationobserver\n */\n\n/* globals window */\n\nimport Observer from './observer';\nimport { startsWithFiller } from '../filler';\nimport { isEqualWith } from 'lodash-es';\n\nimport type DomConverter from '../domconverter';\nimport type Renderer from '../renderer';\nimport type View from '../view';\nimport type ViewElement from '../element';\nimport type ViewNode from '../node';\nimport type ViewText from '../text';\n\n/**\n * Mutation observer's role is to watch for any DOM changes inside the editor that weren't\n * done by the editor's {@link module:engine/view/renderer~Renderer} itself and reverting these changes.\n *\n * It does this by observing all mutations in the DOM, marking related view elements as changed and calling\n * {@link module:engine/view/renderer~Renderer#render}. Because all mutated nodes are marked as\n * \"to be rendered\" and the {@link module:engine/view/renderer~Renderer#render `render()`} method is called,\n * all changes are reverted in the DOM (the DOM is synced with the editor's view structure).\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class MutationObserver extends Observer {\n\tpublic domConverter: DomConverter;\n\tpublic renderer: Renderer;\n\n\tprivate readonly _config: MutationObserverInit;\n\tprivate readonly _domElements: Array<HTMLElement>;\n\tprivate _mutationObserver: InstanceType<typeof global.MutationObserver>;\n\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\t/**\n\t\t * Native mutation observer config.\n\t\t *\n\t\t * @private\n\t\t * @member {Object}\n\t\t */\n\t\tthis._config = {\n\t\t\tchildList: true,\n\t\t\tcharacterData: true,\n\t\t\tsubtree: true\n\t\t};\n\n\t\t/**\n\t\t * Reference to the {@link module:engine/view/view~View#domConverter}.\n\t\t *\n\t\t * @member {module:engine/view/domconverter~DomConverter}\n\t\t */\n\t\tthis.domConverter = view.domConverter;\n\n\t\t/**\n\t\t * Reference to the {@link module:engine/view/view~View#_renderer}.\n\t\t *\n\t\t * @member {module:engine/view/renderer~Renderer}\n\t\t */\n\t\tthis.renderer = ( view as any )._renderer;\n\n\t\t/**\n\t\t * Observed DOM elements.\n\t\t *\n\t\t * @private\n\t\t * @member {Array.<HTMLElement>}\n\t\t */\n\t\tthis._domElements = [];\n\n\t\t/**\n\t\t * Native mutation observer.\n\t\t *\n\t\t * @private\n\t\t * @member {MutationObserver}\n\t\t */\n\t\tthis._mutationObserver = new window.MutationObserver( this._onMutations.bind( this ) );\n\t}\n\n\t/**\n\t * Synchronously handles mutations and empties the queue.\n\t */\n\tpublic flush(): void {\n\t\tthis._onMutations( this._mutationObserver.takeRecords() );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe( domElement: HTMLElement ): void {\n\t\tthis._domElements.push( domElement );\n\n\t\tif ( this.isEnabled ) {\n\t\t\tthis._mutationObserver.observe( domElement, this._config );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override enable(): void {\n\t\tsuper.enable();\n\n\t\tfor ( const domElement of this._domElements ) {\n\t\t\tthis._mutationObserver.observe( domElement, this._config );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override disable(): void {\n\t\tsuper.disable();\n\n\t\tthis._mutationObserver.disconnect();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._mutationObserver.disconnect();\n\t}\n\n\t/**\n\t * Handles mutations. Mark view elements to sync and call render.\n\t *\n\t * @private\n\t * @param {Array.<Object>} domMutations Array of native mutations.\n\t */\n\tprivate _onMutations( domMutations: Array<MutationRecord> ) {\n\t\t// As a result of this.flush() we can have an empty collection.\n\t\tif ( domMutations.length === 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst domConverter = this.domConverter;\n\n\t\t// Use map and set for deduplication.\n\t\tconst mutatedTextNodes = new Set<ViewText>();\n\t\tconst elementsWithMutatedChildren = new Set<ViewElement>();\n\n\t\t// Handle `childList` mutations first, so we will be able to check if the `characterData` mutation is in the\n\t\t// element with changed structure anyway.\n\t\tfor ( const mutation of domMutations ) {\n\t\t\tconst element = domConverter.mapDomToView( mutation.target as HTMLElement );\n\n\t\t\tif ( !element ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Do not collect mutations from UIElements and RawElements.\n\t\t\tif ( element.is( 'uiElement' ) || element.is( 'rawElement' ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( mutation.type === 'childList' && !this._isBogusBrMutation( mutation ) ) {\n\t\t\t\telementsWithMutatedChildren.add( element as ViewElement );\n\t\t\t}\n\t\t}\n\n\t\t// Handle `characterData` mutations later, when we have the full list of nodes which changed structure.\n\t\tfor ( const mutation of domMutations ) {\n\t\t\tconst element = domConverter.mapDomToView( mutation.target as HTMLElement );\n\n\t\t\t// Do not collect mutations from UIElements and RawElements.\n\t\t\tif ( element && ( element.is( 'uiElement' ) || element.is( 'rawElement' ) ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( mutation.type === 'characterData' ) {\n\t\t\t\tconst text = domConverter.findCorrespondingViewText( mutation.target as Text ) as ViewText;\n\n\t\t\t\tif ( text && !elementsWithMutatedChildren.has( text.parent as ViewElement ) ) {\n\t\t\t\t\tmutatedTextNodes.add( text );\n\t\t\t\t}\n\t\t\t\t// When we added first letter to the text node which had only inline filler, for the DOM it is mutation\n\t\t\t\t// on text, but for the view, where filler text node did not exist, new text node was created, so we\n\t\t\t\t// need to handle it as a 'children' mutation instead of 'text'.\n\t\t\t\telse if ( !text && startsWithFiller( mutation.target ) ) {\n\t\t\t\t\telementsWithMutatedChildren.add(\n\t\t\t\t\t\tdomConverter.mapDomToView( mutation.target.parentNode as HTMLElement ) as ViewElement\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Now we build the list of mutations to mark elements. We did not do it earlier to avoid marking the\n\t\t// same node multiple times in case of duplication.\n\n\t\tlet hasMutations = false;\n\n\t\tfor ( const textNode of mutatedTextNodes ) {\n\t\t\thasMutations = true;\n\t\t\tthis.renderer.markToSync( 'text', textNode );\n\t\t}\n\n\t\tfor ( const viewElement of elementsWithMutatedChildren ) {\n\t\t\tconst domElement = domConverter.mapViewToDom( viewElement ) as HTMLElement;\n\t\t\tconst viewChildren = Array.from( viewElement.getChildren() );\n\t\t\tconst newViewChildren = Array.from( domConverter.domChildrenToView( domElement, { withChildren: false } ) );\n\n\t\t\t// It may happen that as a result of many changes (sth was inserted and then removed),\n\t\t\t// both elements haven't really changed. #1031\n\t\t\tif ( !isEqualWith( viewChildren, newViewChildren, sameNodes ) ) {\n\t\t\t\thasMutations = true;\n\t\t\t\tthis.renderer.markToSync( 'children', viewElement );\n\t\t\t}\n\t\t}\n\n\t\t// In case only non-relevant mutations were recorded it skips the event and force render (#5600).\n\t\tif ( hasMutations ) {\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[MutationObserver]%c Mutations detected',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight:bold;color:green', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// At this point we have \"dirty DOM\" (changed) and de-synched view (which has not been changed).\n\t\t\t// In order to \"reset DOM\" we render the view again.\n\t\t\tthis.view.forceRender();\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\t}\n\n\t/**\n\t * Checks if mutation was generated by the browser inserting bogus br on the end of the block element.\n\t * Such mutations are generated while pressing space or performing native spellchecker correction\n\t * on the end of the block element in Firefox browser.\n\t *\n\t * @private\n\t * @param {Object} mutation Native mutation object.\n\t * @returns {Boolean}\n\t */\n\tprivate _isBogusBrMutation( mutation: MutationRecord ) {\n\t\tlet addedNode = null;\n\n\t\t// Check if mutation added only one node on the end of its parent.\n\t\tif ( mutation.nextSibling === null && mutation.removedNodes.length === 0 && mutation.addedNodes.length == 1 ) {\n\t\t\taddedNode = this.domConverter.domToView( mutation.addedNodes[ 0 ], {\n\t\t\t\twithChildren: false\n\t\t\t} );\n\t\t}\n\n\t\treturn addedNode && addedNode.is( 'element', 'br' );\n\t}\n}\n\nfunction sameNodes( child1: ViewNode, child2: ViewNode ) {\n\t// First level of comparison (array of children vs array of children) – use the Lodash's default behavior.\n\tif ( Array.isArray( child1 ) ) {\n\t\treturn;\n\t}\n\n\t// Elements.\n\tif ( child1 === child2 ) {\n\t\treturn true;\n\t}\n\t// Texts.\n\telse if ( child1.is( '$text' ) && child2.is( '$text' ) ) {\n\t\treturn child1.data === child2.data;\n\t}\n\n\t// Not matching types.\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/selectionobserver\n */\n\n/* global setInterval, clearInterval */\n\nimport Observer from './observer';\nimport MutationObserver from './mutationobserver';\nimport { env } from '@ckeditor/ckeditor5-utils';\nimport { debounce, type DebouncedFunc } from 'lodash-es';\n\nimport type View from '../view';\nimport type DocumentSelection from '../documentselection';\nimport type DomConverter from '../domconverter';\nimport type Selection from '../selection';\n\ntype DomSelection = globalThis.Selection;\n\n/**\n * Selection observer class observes selection changes in the document. If a selection changes on the document this\n * observer checks if the DOM selection is different from the {@link module:engine/view/document~Document#selection view selection}.\n * The selection observer fires {@link module:engine/view/document~Document#event:selectionChange} event only if\n * a selection change was the only change in the document and the DOM selection is different from the view selection.\n *\n * This observer also manages the {@link module:engine/view/document~Document#isSelecting} property of the view document.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class SelectionObserver extends Observer {\n\tpublic readonly mutationObserver: MutationObserver;\n\tpublic readonly selection: DocumentSelection;\n\tpublic readonly domConverter: DomConverter;\n\n\tprivate readonly _documents: WeakSet<Document>;\n\tprivate readonly _fireSelectionChangeDoneDebounced: DebouncedFunc<( data: ViewDocumentSelectionEventData ) => void>;\n\tprivate readonly _clearInfiniteLoopInterval: ReturnType<typeof setInterval>;\n\tprivate readonly _documentIsSelectingInactivityTimeoutDebounced: DebouncedFunc<() => void>;\n\tprivate _loopbackCounter: number;\n\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\t/**\n\t\t * Instance of the mutation observer. Selection observer calls\n\t\t * {@link module:engine/view/observer/mutationobserver~MutationObserver#flush} to ensure that the mutations will be handled\n\t\t * before the {@link module:engine/view/document~Document#event:selectionChange} event is fired.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/observer/mutationobserver~MutationObserver}\n\t\t * module:engine/view/observer/selectionobserver~SelectionObserver#mutationObserver\n\t\t */\n\t\tthis.mutationObserver = view.getObserver( MutationObserver )!;\n\n\t\t/**\n\t\t * Reference to the view {@link module:engine/view/documentselection~DocumentSelection} object used to compare\n\t\t * new selection with it.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/documentselection~DocumentSelection}\n\t\t * module:engine/view/observer/selectionobserver~SelectionObserver#selection\n\t\t */\n\t\tthis.selection = this.document.selection;\n\n\t\t/* eslint-disable max-len */\n\t\t/**\n\t\t * Reference to the {@link module:engine/view/view~View#domConverter}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/domconverter~DomConverter} module:engine/view/observer/selectionobserver~SelectionObserver#domConverter\n\t\t */\n\t\t/* eslint-enable max-len */\n\t\tthis.domConverter = view.domConverter;\n\n\t\t/**\n\t\t * A set of documents which have added `selectionchange` listener to avoid adding a listener twice to the same\n\t\t * document.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakSet.<Document>} module:engine/view/observer/selectionobserver~SelectionObserver#_documents\n\t\t */\n\t\tthis._documents = new WeakSet();\n\n\t\t/**\n\t\t * Fires debounced event `selectionChangeDone`. It uses `lodash#debounce` method to delay function call.\n\t\t *\n\t\t * @private\n\t\t * @param {Object} data Selection change data.\n\t\t * @method #_fireSelectionChangeDoneDebounced\n\t\t */\n\t\tthis._fireSelectionChangeDoneDebounced = debounce( data => {\n\t\t\tthis.document.fire<ViewDocumentSelectionEvent>( 'selectionChangeDone', data );\n\t\t}, 200 );\n\n\t\t/**\n\t\t * When called, starts clearing the {@link #_loopbackCounter} counter in time intervals. When the number of selection\n\t\t * changes exceeds a certain limit within the interval of time, the observer will not fire `selectionChange` but warn about\n\t\t * possible infinite selection loop.\n\t\t *\n\t\t * @private\n\t\t * @member {Number} #_clearInfiniteLoopInterval\n\t\t */\n\t\tthis._clearInfiniteLoopInterval = setInterval( () => this._clearInfiniteLoop(), 1000 );\n\n\t\t/**\n\t\t * Unlocks the `isSelecting` state of the view document in case the selection observer did not record this fact\n\t\t * correctly (for whatever reason). It is a safeguard (paranoid check), that returns document to the normal state\n\t\t * after a certain period of time (debounced, postponed by each selectionchange event).\n\t\t *\n\t\t * @private\n\t\t * @method #_documentIsSelectingInactivityTimeoutDebounced\n\t\t */\n\t\tthis._documentIsSelectingInactivityTimeoutDebounced = debounce( () => ( this.document.isSelecting = false ), 5000 );\n\n\t\t/**\n\t\t * Private property to check if the code does not enter infinite loop.\n\t\t *\n\t\t * @private\n\t\t * @member {Number} module:engine/view/observer/selectionobserver~SelectionObserver#_loopbackCounter\n\t\t */\n\t\tthis._loopbackCounter = 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe( domElement: HTMLElement ): void {\n\t\tconst domDocument = domElement.ownerDocument;\n\n\t\tconst startDocumentIsSelecting = () => {\n\t\t\tthis.document.isSelecting = true;\n\n\t\t\t// Let's activate the safety timeout each time the document enters the \"is selecting\" state.\n\t\t\tthis._documentIsSelectingInactivityTimeoutDebounced();\n\t\t};\n\n\t\tconst endDocumentIsSelecting = () => {\n\t\t\tif ( !this.document.isSelecting ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Make sure that model selection is up-to-date at the end of selecting process.\n\t\t\t// Sometimes `selectionchange` events could arrive after the `mouseup` event and that selection could be already outdated.\n\t\t\tthis._handleSelectionChange( null, domDocument );\n\n\t\t\tthis.document.isSelecting = false;\n\n\t\t\t// The safety timeout can be canceled when the document leaves the \"is selecting\" state.\n\t\t\tthis._documentIsSelectingInactivityTimeoutDebounced.cancel();\n\t\t};\n\n\t\t// The document has the \"is selecting\" state while the user keeps making (extending) the selection\n\t\t// (e.g. by holding the mouse button and moving the cursor). The state resets when they either released\n\t\t// the mouse button or interrupted the process by pressing or releasing any key.\n\t\tthis.listenTo( domElement, 'selectstart', startDocumentIsSelecting, { priority: 'highest' } );\n\n\t\tthis.listenTo( domElement, 'keydown', endDocumentIsSelecting, { priority: 'highest', useCapture: true } );\n\t\tthis.listenTo( domElement, 'keyup', endDocumentIsSelecting, { priority: 'highest', useCapture: true } );\n\n\t\t// Add document-wide listeners only once. This method could be called for multiple editing roots.\n\t\tif ( this._documents.has( domDocument ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// This listener is using capture mode to make sure that selection is upcasted before any other\n\t\t// handler would like to check it and update (for example table multi cell selection).\n\t\tthis.listenTo( domDocument, 'mouseup', endDocumentIsSelecting, { priority: 'highest', useCapture: true } );\n\n\t\tthis.listenTo( domDocument, 'selectionchange', ( evt, domEvent ) => {\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconst domSelection = domDocument.defaultView.getSelection();\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[SelectionObserver]%c selectionchange', 'color:green', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[SelectionObserver]%c DOM Selection:', 'font-weight:bold;color:green', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t{ node: domSelection.anchorNode, offset: domSelection.anchorOffset },\n\t\t\t// @if CK_DEBUG_TYPING // \t\t{ node: domSelection.focusNode, offset: domSelection.focusOffset }\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// The Renderer is disabled while composing on non-android browsers, so we can't update the view selection\n\t\t\t// because the DOM and view tree drifted apart. Position mapping could fail because of it.\n\t\t\tif ( this.document.isComposing && !env.isAndroid ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[SelectionObserver]%c Selection change ignored (isComposing)',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight:bold;color:green', ''\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._handleSelectionChange( domEvent, domDocument );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// Defer the safety timeout when the selection changes (e.g. the user keeps extending the selection\n\t\t\t// using their mouse).\n\t\t\tthis._documentIsSelectingInactivityTimeoutDebounced();\n\t\t} );\n\n\t\tthis._documents.add( domDocument );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tclearInterval( this._clearInfiniteLoopInterval );\n\t\tthis._fireSelectionChangeDoneDebounced.cancel();\n\t\tthis._documentIsSelectingInactivityTimeoutDebounced.cancel();\n\t}\n\n\t// @if CK_DEBUG //\t_reportInfiniteLoop() {\n\t// @if CK_DEBUG //\t\tthrow new Error(\n\t// @if CK_DEBUG //\t\t\t'Selection change observer detected an infinite rendering loop.\\n\\n' +\n\t// @if CK_DEBUG //\t \t\t'⚠️⚠️ Report this error on https://github.com/ckeditor/ckeditor5/issues/11658.'\n\t// @if CK_DEBUG //\t\t);\n\t// @if CK_DEBUG //\t}\n\n\t/**\n\t * Selection change listener. {@link module:engine/view/observer/mutationobserver~MutationObserver#flush Flush} mutations, check if\n\t * a selection changes and fires {@link module:engine/view/document~Document#event:selectionChange} event on every change\n\t * and {@link module:engine/view/document~Document#event:selectionChangeDone} when a selection stop changing.\n\t *\n\t * @private\n\t * @param {Event} domEvent DOM event.\n\t * @param {Document} domDocument DOM document.\n\t */\n\tprivate _handleSelectionChange( domEvent: unknown, domDocument: Document ) {\n\t\tif ( !this.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst domSelection = domDocument.defaultView!.getSelection()!;\n\n\t\tif ( this.checkShouldIgnoreEventFromTarget( domSelection.anchorNode! ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Ensure the mutation event will be before selection event on all browsers.\n\t\tthis.mutationObserver.flush();\n\n\t\tconst newViewSelection = this.domConverter.domSelectionToView( domSelection );\n\n\t\t// Do not convert selection change if the new view selection has no ranges in it.\n\t\t//\n\t\t// It means that the DOM selection is in some way incorrect. Ranges that were in the DOM selection could not be\n\t\t// converted to the view. This happens when the DOM selection was moved outside of the editable element.\n\t\tif ( newViewSelection.rangeCount == 0 ) {\n\t\t\tthis.view.hasDomSelection = false;\n\n\t\t\treturn;\n\t\t}\n\n\t\tthis.view.hasDomSelection = true;\n\n\t\tif ( this.selection.isEqual( newViewSelection ) && this.domConverter.isDomSelectionCorrect( domSelection ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Ensure we are not in the infinite loop (#400).\n\t\t// This counter is reset each second. 60 selection changes in 1 second is enough high number\n\t\t// to be very difficult (impossible) to achieve using just keyboard keys (during normal editor use).\n\t\tif ( ++this._loopbackCounter > 60 ) {\n\t\t\t// Selection change observer detected an infinite rendering loop.\n\t\t\t// Most probably you try to put the selection in the position which is not allowed\n\t\t\t// by the browser and browser fixes it automatically what causes `selectionchange` event on\n\t\t\t// which a loopback through a model tries to re-render the wrong selection and again.\n\t\t\t//\n\t\t\t// @if CK_DEBUG // this._reportInfiniteLoop();\n\n\t\t\treturn;\n\t\t}\n\n\t\tif ( this.selection.isSimilar( newViewSelection ) ) {\n\t\t\t// If selection was equal and we are at this point of algorithm, it means that it was incorrect.\n\t\t\t// Just re-render it, no need to fire any events, etc.\n\t\t\tthis.view.forceRender();\n\t\t} else {\n\t\t\tconst data: ViewDocumentSelectionEventData = {\n\t\t\t\toldSelection: this.selection,\n\t\t\t\tnewSelection: newViewSelection,\n\t\t\t\tdomSelection\n\t\t\t};\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[SelectionObserver]%c Fire selection change:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight:bold;color:green', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\tnewViewSelection.getFirstRange()\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\tthis.document._isFocusChanging = false;\n\n\t\t\t// Prepare data for new selection and fire appropriate events.\n\t\t\tthis.document.fire<ViewDocumentSelectionEvent>( 'selectionChange', data );\n\n\t\t\t// Call `#_fireSelectionChangeDoneDebounced` every time when `selectionChange` event is fired.\n\t\t\t// This function is debounced what means that `selectionChangeDone` event will be fired only when\n\t\t\t// defined int the function time will elapse since the last time the function was called.\n\t\t\t// So `selectionChangeDone` will be fired when selection will stop changing.\n\t\t\tthis._fireSelectionChangeDoneDebounced( data );\n\t\t}\n\t}\n\n\t/**\n\t * Clears `SelectionObserver` internal properties connected with preventing infinite loop.\n\t *\n\t * @protected\n\t */\n\tprivate _clearInfiniteLoop(): void {\n\t\tthis._loopbackCounter = 0;\n\t}\n}\n\nexport type ViewDocumentSelectionEventData = {\n\toldSelection: DocumentSelection;\n\tnewSelection: Selection;\n\tdomSelection: DomSelection | null;\n};\n\n/**\n * Fired when a selection has changed. This event is fired only when the selection change was the only change that happened\n * in the document, and the old selection is different then the new selection.\n *\n * Introduced by {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n *\n * Note that because {@link module:engine/view/observer/selectionobserver~SelectionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/selectionobserver~SelectionObserver\n * @event module:engine/view/document~Document#event:selectionChange\n * @param {Object} data\n * @param {module:engine/view/documentselection~DocumentSelection} data.oldSelection Old View selection which is\n * {@link module:engine/view/document~Document#selection}.\n * @param {module:engine/view/selection~Selection} data.newSelection New View selection which is converted DOM selection.\n * @param {Selection} data.domSelection Native DOM selection.\n */\nexport type ViewDocumentSelectionEvent = {\n\tname: 'selectionChange' | 'selectionChangeDone';\n\targs: [ ViewDocumentSelectionEventData ];\n};\n\n/**\n * Fired when selection stops changing.\n *\n * Introduced by {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n *\n * Note that because {@link module:engine/view/observer/selectionobserver~SelectionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/selectionobserver~SelectionObserver\n * @event module:engine/view/document~Document#event:selectionChangeDone\n * @param {Object} data\n * @param {module:engine/view/documentselection~DocumentSelection} data.oldSelection Old View selection which is\n * {@link module:engine/view/document~Document#selection}.\n * @param {module:engine/view/selection~Selection} data.newSelection New View selection which is converted DOM selection.\n * @param {Selection} data.domSelection Native DOM selection.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/focusobserver\n */\n\n/* globals setTimeout, clearTimeout */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport type View from '../view';\n\n/**\n * {@link module:engine/view/document~Document#event:focus Focus}\n * and {@link module:engine/view/document~Document#event:blur blur} events observer.\n * Focus observer handle also {@link module:engine/view/rooteditableelement~RootEditableElement#isFocused isFocused} property of the\n * {@link module:engine/view/rooteditableelement~RootEditableElement root elements}.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class FocusObserver extends DomEventObserver<'focus' | 'blur'> {\n\tprivate _renderTimeoutId!: ReturnType<typeof setTimeout>;\n\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.domEventType = [ 'focus', 'blur' ];\n\t\tthis.useCapture = true;\n\t\tconst document = this.document;\n\n\t\tdocument.on<ViewDocumentFocusEvent>( 'focus', () => {\n\t\t\tdocument.isFocused = true;\n\t\t\tdocument._isFocusChanging = true;\n\n\t\t\t// Unfortunately native `selectionchange` event is fired asynchronously.\n\t\t\t// We need to wait until `SelectionObserver` handle the event and then render. Otherwise rendering will\n\t\t\t// overwrite new DOM selection with selection from the view.\n\t\t\t// See https://github.com/ckeditor/ckeditor5-engine/issues/795 for more details.\n\t\t\t// Long timeout is needed to solve #676 and https://github.com/ckeditor/ckeditor5-engine/issues/1157 issues.\n\t\t\t//\n\t\t\t// Using `view.change()` instead of `view.forceRender()` to prevent double rendering\n\t\t\t// in a situation where `selectionchange` already caused selection change.\n\t\t\tthis._renderTimeoutId = setTimeout( () => {\n\t\t\t\tdocument._isFocusChanging = false;\n\t\t\t\tview.change( () => {} );\n\t\t\t}, 50 );\n\t\t} );\n\n\t\tdocument.on<ViewDocumentFocusEvent>( 'blur', ( evt, data ) => {\n\t\t\tconst selectedEditable = document.selection.editableElement;\n\n\t\t\tif ( selectedEditable === null || selectedEditable === data.target ) {\n\t\t\t\tdocument.isFocused = false;\n\n\t\t\t\t// Re-render the document to update view elements\n\t\t\t\t// (changing document.isFocused already marked view as changed since last rendering).\n\t\t\t\tview.change( () => {} );\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * Identifier of the timeout currently used by focus listener to delay rendering execution.\n\t\t *\n\t\t * @private\n\t\t * @member {Number} #_renderTimeoutId\n\t\t */\n\t}\n\n\tpublic onDomEvent( domEvent: FocusEvent ): void {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tif ( this._renderTimeoutId ) {\n\t\t\tclearTimeout( this._renderTimeoutId );\n\t\t}\n\n\t\tsuper.destroy();\n\t}\n}\n\nexport type ViewDocumentFocusEvent = {\n\tname: 'focus' | 'blur';\n\targs: [ data: DomEventData<FocusEvent> ];\n};\n\n/**\n * Fired when one of the editables gets focus.\n *\n * Introduced by {@link module:engine/view/observer/focusobserver~FocusObserver}.\n *\n * Note that because {@link module:engine/view/observer/focusobserver~FocusObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/focusobserver~FocusObserver\n * @event module:engine/view/document~Document#event:focus\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n\n/**\n * Fired when one of the editables loses focus.\n *\n * Introduced by {@link module:engine/view/observer/focusobserver~FocusObserver}.\n *\n * Note that because {@link module:engine/view/observer/focusobserver~FocusObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/focusobserver~FocusObserver\n * @event module:engine/view/document~Document#event:blur\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/compositionobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type View from '../view';\nimport type DomEventData from './domeventdata';\n\n/**\n * {@link module:engine/view/document~Document#event:compositionstart Compositionstart},\n * {@link module:engine/view/document~Document#event:compositionupdate compositionupdate} and\n * {@link module:engine/view/document~Document#event:compositionend compositionend} events observer.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class CompositionObserver extends DomEventObserver<'compositionstart' | 'compositionupdate' | 'compositionend'> {\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.domEventType = [ 'compositionstart', 'compositionupdate', 'compositionend' ];\n\n\t\tconst document = this.document;\n\n\t\tdocument.on<ViewDocumentCompositionEvent>( 'compositionstart', () => {\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[CompositionObserver] ' +\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'┌───────────────────────────── isComposing = true ─────────────────────────────┐',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\tdocument.isComposing = true;\n\t\t}, { priority: 'low' } );\n\n\t\tdocument.on<ViewDocumentCompositionEvent>( 'compositionend', () => {\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[CompositionObserver] ' +\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'└───────────────────────────── isComposing = false ─────────────────────────────┘',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\tdocument.isComposing = false;\n\t\t}, { priority: 'low' } );\n\t}\n\n\tpublic onDomEvent( domEvent: CompositionEvent ): void {\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( `%c[CompositionObserver]%c ${ domEvent.type }`, 'color: green', '' );\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\tdata: domEvent.data\n\t\t} );\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n}\n\nexport type ViewDocumentCompositionEvent = {\n\tname: 'compositionstart' | 'compositionupdate' | 'compositionend';\n\targs: [ data: CompositionEventData ];\n};\n\nexport interface CompositionEventData extends DomEventData<CompositionEvent> {\n\tdata: string | null;\n}\n\n/**\n * Fired when composition starts inside one of the editables.\n *\n * Introduced by {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n *\n * Note that because {@link module:engine/view/observer/compositionobserver~CompositionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/compositionobserver~CompositionObserver\n * @event module:engine/view/document~Document#event:compositionstart\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n\n/**\n * Fired when composition is updated inside one of the editables.\n *\n * Introduced by {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n *\n * Note that because {@link module:engine/view/observer/compositionobserver~CompositionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/compositionobserver~CompositionObserver\n * @event module:engine/view/document~Document#event:compositionupdate\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n\n/**\n * Fired when composition ends inside one of the editables.\n *\n * Introduced by {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n *\n * Note that because {@link module:engine/view/observer/compositionobserver~CompositionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/compositionobserver~CompositionObserver\n * @event module:engine/view/document~Document#event:compositionend\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/datatransfer\n */\n\ntype DomDataTransfer = globalThis.DataTransfer;\n\n/**\n * A facade over the native [`DataTransfer`](https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer) object.\n */\nexport default class DataTransfer {\n\tpublic readonly files: Array<File>;\n\n\tprivate _native: DomDataTransfer;\n\n\tconstructor( nativeDataTransfer: DomDataTransfer ) {\n\t\t/**\n\t\t * The array of files created from the native `DataTransfer#files` or `DataTransfer#items`.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Array.<File>} #files\n\t\t */\n\t\tthis.files = getFiles( nativeDataTransfer );\n\n\t\t/**\n\t\t * The native DataTransfer object.\n\t\t *\n\t\t * @private\n\t\t * @member {DataTransfer} #_native\n\t\t */\n\t\tthis._native = nativeDataTransfer;\n\t}\n\n\t/**\n\t * Returns an array of available native content types.\n\t *\n\t * @returns {Array.<String>}\n\t */\n\tpublic get types(): ReadonlyArray<string> {\n\t\treturn this._native.types;\n\t}\n\n\t/**\n\t * Gets the data from the data transfer by its MIME type.\n\t *\n\t *\t\tdataTransfer.getData( 'text/plain' );\n\t *\n\t * @param {String} type The MIME type. E.g. `text/html` or `text/plain`.\n\t * @returns {String}\n\t */\n\tpublic getData( type: string ): string {\n\t\treturn this._native.getData( type );\n\t}\n\n\t/**\n\t * Sets the data in the data transfer.\n\t *\n\t * @param {String} type The MIME type. E.g. `text/html` or `text/plain`.\n\t * @param {String} data\n\t */\n\tpublic setData( type: string, data: string ): void {\n\t\tthis._native.setData( type, data );\n\t}\n\n\t/**\n\t * The effect that is allowed for a drag operation.\n\t *\n\t * @param {String} value\n\t */\n\tpublic set effectAllowed( value: DomDataTransfer[ 'effectAllowed' ] ) {\n\t\tthis._native.effectAllowed = value;\n\t}\n\n\tpublic get effectAllowed(): DomDataTransfer[ 'effectAllowed' ] {\n\t\treturn this._native.effectAllowed;\n\t}\n\n\t/**\n\t * The actual drop effect.\n\t *\n\t * @param {String} value\n\t */\n\tpublic set dropEffect( value: DomDataTransfer[ 'dropEffect' ] ) {\n\t\tthis._native.dropEffect = value;\n\t}\n\n\tpublic get dropEffect(): DomDataTransfer[ 'dropEffect' ] {\n\t\treturn this._native.dropEffect;\n\t}\n\n\t/**\n\t * Whether the dragging operation was canceled.\n\t *\n\t * @returns {Boolean}\n\t */\n\tpublic get isCanceled(): boolean {\n\t\treturn this._native.dropEffect == 'none' || !!( this._native as any ).mozUserCancelled;\n\t}\n}\n\nfunction getFiles( nativeDataTransfer: DomDataTransfer ): Array<File> {\n\t// DataTransfer.files and items are array-like and might not have an iterable interface.\n\tconst files = Array.from( nativeDataTransfer.files || [] );\n\tconst items = Array.from( nativeDataTransfer.items || [] );\n\n\tif ( files.length ) {\n\t\treturn files;\n\t}\n\n\t// Chrome has empty DataTransfer.files, but allows getting files through the items interface.\n\treturn items\n\t\t.filter( item => item.kind === 'file' )\n\t\t.map( item => item.getAsFile()! );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/inputobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport type View from '../view';\nimport type ViewRange from '../range';\nimport DataTransfer from '../datatransfer';\nimport { env } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Observer for events connected with data input.\n *\n * **Note**: This observer is attached by {@link module:engine/view/view~View} and available by default in all\n * editor instances.\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class InputObserver extends DomEventObserver<'beforeinput'> {\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.domEventType = [ 'beforeinput' ];\n\t}\n\n\tpublic onDomEvent( domEvent: InputEvent ): void {\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( `%c[InputObserver]%c ${ domEvent.type }: ${ domEvent.inputType }`,\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green', 'color: default'\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tconst domTargetRanges = domEvent.getTargetRanges();\n\t\tconst view = this.view;\n\t\tconst viewDocument = view.document;\n\n\t\tlet dataTransfer: DataTransfer | null = null;\n\t\tlet data: string | null = null;\n\t\tlet targetRanges: Array<ViewRange> = [];\n\n\t\tif ( domEvent.dataTransfer ) {\n\t\t\tdataTransfer = new DataTransfer( domEvent.dataTransfer );\n\t\t}\n\n\t\tif ( domEvent.data !== null ) {\n\t\t\tdata = domEvent.data;\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( `%c[InputObserver]%c event data: %c${ JSON.stringify( data ) }`,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', 'color: blue;'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t} else if ( dataTransfer ) {\n\t\t\tdata = dataTransfer.getData( 'text/plain' );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( `%c[InputObserver]%c event data transfer: %c${ JSON.stringify( data ) }`,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', 'color: blue;'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\n\t\t// If the editor selection is fake (an object is selected), the DOM range does not make sense because it is anchored\n\t\t// in the fake selection container.\n\t\tif ( viewDocument.selection.isFake ) {\n\t\t\t// Future-proof: in case of multi-range fake selections being possible.\n\t\t\ttargetRanges = Array.from( viewDocument.selection.getRanges() );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[InputObserver]%c using fake selection:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', targetRanges,\n\t\t\t// @if CK_DEBUG_TYPING // \t\tviewDocument.selection.isFake ? 'fake view selection' : 'fake DOM parent'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t} else if ( domTargetRanges.length ) {\n\t\t\ttargetRanges = domTargetRanges.map( domRange => {\n\t\t\t\treturn view.domConverter.domRangeToView( domRange )!;\n\t\t\t} );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[InputObserver]%c using target ranges:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', targetRanges\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\t\t// For Android devices we use a fallback to the current DOM selection, Android modifies it according\n\t\t// to the expected target ranges of input event.\n\t\telse if ( env.isAndroid ) {\n\t\t\tconst domSelection = ( domEvent.target as HTMLElement ).ownerDocument.defaultView!.getSelection()!;\n\n\t\t\ttargetRanges = Array.from( view.domConverter.domSelectionToView( domSelection ).getRanges() );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[InputObserver]%c using selection ranges:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', targetRanges\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\n\t\t// Android sometimes fires insertCompositionText with a new-line character at the end of the data\n\t\t// instead of firing insertParagraph beforeInput event.\n\t\t// Fire the correct type of beforeInput event and ignore the replaced fragment of text because\n\t\t// it wants to replace \"test\" with \"test\\n\".\n\t\t// https://github.com/ckeditor/ckeditor5/issues/12368.\n\t\tif ( env.isAndroid && domEvent.inputType == 'insertCompositionText' && data && data.endsWith( '\\n' ) ) {\n\t\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\t\tinputType: 'insertParagraph',\n\t\t\t\ttargetRanges: [ view.createRange( targetRanges[ 0 ].end ) ]\n\t\t\t} );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Normalize the insertText data that includes new-line characters.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/2045.\n\t\tif ( domEvent.inputType == 'insertText' && data && data.includes( '\\n' ) ) {\n\t\t\t// There might be a single new-line or double for new paragraph, but we translate\n\t\t\t// it to paragraphs as it is our default action for enter handling.\n\t\t\tconst parts = data.split( /\\n{1,2}/g );\n\n\t\t\tlet partTargetRanges = targetRanges;\n\n\t\t\tfor ( let i = 0; i < parts.length; i++ ) {\n\t\t\t\tconst dataPart = parts[ i ];\n\n\t\t\t\tif ( dataPart != '' ) {\n\t\t\t\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\t\t\t\tdata: dataPart,\n\t\t\t\t\t\tdataTransfer,\n\t\t\t\t\t\ttargetRanges: partTargetRanges,\n\t\t\t\t\t\tinputType: domEvent.inputType,\n\t\t\t\t\t\tisComposing: domEvent.isComposing\n\t\t\t\t\t} );\n\n\t\t\t\t\t// Use the result view selection so following events will be added one after another.\n\t\t\t\t\tpartTargetRanges = [ viewDocument.selection.getFirstRange()! ];\n\t\t\t\t}\n\n\t\t\t\tif ( i + 1 < parts.length ) {\n\t\t\t\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\t\t\t\tinputType: 'insertParagraph',\n\t\t\t\t\t\ttargetRanges: partTargetRanges\n\t\t\t\t\t} );\n\n\t\t\t\t\t// Use the result view selection so following events will be added one after another.\n\t\t\t\t\tpartTargetRanges = [ viewDocument.selection.getFirstRange()! ];\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Fire the normalized beforeInput event.\n\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\tdata,\n\t\t\tdataTransfer,\n\t\t\ttargetRanges,\n\t\t\tinputType: domEvent.inputType,\n\t\t\tisComposing: domEvent.isComposing\n\t\t} );\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n}\n\n/**\n * Fired before the web browser inputs, deletes, or formats some data.\n *\n * This event is introduced by {@link module:engine/view/observer/inputobserver~InputObserver} and available\n * by default in all editor instances (attached by {@link module:engine/view/view~View}).\n *\n * @see module:engine/view/observer/inputobserver~InputObserver\n * @event module:engine/view/document~Document#event:beforeinput\n * @param {module:engine/view/observer/inputobserver~InputEventData} data Event data containing detailed information about the event.\n */\nexport type ViewDocumentInputEvent = {\n\tname: 'beforeinput';\n\targs: [ data: InputEventData ];\n};\n\n/**\n * The value of the {@link module:engine/view/document~Document#event:beforeinput} event.\n *\n * @class module:engine/view/observer/inputobserver~InputEventData\n * @extends module:engine/view/observer/domeventdata~DomEventData\n */\nexport interface InputEventData extends DomEventData<InputEvent> {\n\tinputType: string;\n\tdata: string | null;\n\tdataTransfer: DataTransfer;\n\tisComposing: boolean;\n\ttargetRanges: Array<ViewRange>;\n}\n\n/**\n * The data transfer instance of the input event. Corresponds to native `InputEvent#dataTransfer`.\n *\n * The value is `null` when no `dataTransfer` was passed along with the input event.\n *\n * @readonly\n * @member {module:engine/view/datatransfer~DataTransfer|null} module:engine/view/observer/inputobserver~InputEventData#dataTransfer\n */\n\n/**\n * A flag indicating that the `beforeinput` event was fired during composition.\n *\n * Corresponds to the\n * {@link module:engine/view/document~Document#event:compositionstart},\n * {@link module:engine/view/document~Document#event:compositionupdate},\n * and {@link module:engine/view/document~Document#event:compositionend } trio.\n *\n * @readonly\n * @member {Boolean} module:engine/view/observer/inputobserver~InputEventData#isComposing\n */\n\n/**\n * The type of the input event (e.g. \"insertText\" or \"deleteWordBackward\"). Corresponds to native `InputEvent#inputType`.\n *\n * @readonly\n * @member {String} module:engine/view/observer/inputobserver~InputEventData#inputType\n */\n\n/**\n * Editing {@link module:engine/view/range~Range view ranges} corresponding to DOM ranges provided by the web browser\n * (as returned by `InputEvent#getTargetRanges()`).\n *\n * @readonly\n * @member {Array.<module:engine/view/range~Range>} module:engine/view/observer/inputobserver~InputEventData#targetRanges\n */\n\n/**\n * A unified text data passed along with the input event. Depending on:\n *\n * * the web browser and input events implementation (for instance [Level 1](https://www.w3.org/TR/input-events-1/) or\n * [Level 2](https://www.w3.org/TR/input-events-2/)),\n * * {@link module:engine/view/observer/inputobserver~InputEventData#inputType input type}\n *\n * text data is sometimes passed in the `data` and sometimes in the `dataTransfer` property.\n *\n * * If `InputEvent#data` was set, this property reflects its value.\n * * If `InputEvent#data` is unavailable, this property contains the `'text/plain'` data from\n * {@link module:engine/view/observer/inputobserver~InputEventData#dataTransfer}.\n * * If the event ({@link module:engine/view/observer/inputobserver~InputEventData#inputType input type})\n * provides no data whatsoever, this property is `null`.\n *\n * @readonly\n * @member {String|null} module:engine/view/observer/inputobserver~InputEventData#data\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/arrowkeysobserver\n */\n\nimport Observer from './observer';\nimport BubblingEventInfo from './bubblingeventinfo';\nimport type View from '../view';\nimport type { ViewDocumentKeyEvent } from './keyobserver';\nimport type { BubblingEvent } from './bubblingemittermixin';\n\nimport { isArrowKeyCode } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Arrow keys observer introduces the {@link module:engine/view/document~Document#event:arrowKey `Document#arrowKey`} event.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class ArrowKeysObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.document.on<ViewDocumentKeyEvent>( 'keydown', ( event, data ) => {\n\t\t\tif ( this.isEnabled && isArrowKeyCode( data.keyCode ) ) {\n\t\t\t\tconst eventInfo = new BubblingEventInfo( this.document, 'arrowKey', this.document.selection.getFirstRange()! );\n\n\t\t\t\tthis.document.fire<ViewDocumentArrowKeyEvent>( eventInfo, data );\n\n\t\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\t\tevent.stop();\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe(): void {}\n}\n\nexport type ViewDocumentArrowKeyEvent = BubblingEvent<{\n\tname: 'arrowKey';\n\targs: ViewDocumentKeyEvent[ 'args' ];\n}>;\n\n/**\n * Event fired when the user presses an arrow keys.\n *\n * Introduced by {@link module:engine/view/observer/arrowkeysobserver~ArrowKeysObserver}.\n *\n * Note that because {@link module:engine/view/observer/arrowkeysobserver~ArrowKeysObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @event module:engine/view/document~Document#event:arrowKey\n * @param {module:engine/view/observer/domeventdata~DomEventData} data\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/tabobserver\n */\n\nimport type View from '../view';\nimport Observer from './observer';\nimport BubblingEventInfo from './bubblingeventinfo';\nimport type { ViewDocumentKeyEvent } from './keyobserver';\nimport type { BubblingEvent } from './bubblingemittermixin';\n\nimport { keyCodes } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Tab observer introduces the {@link module:engine/view/document~Document#event:tab `Document#tab`} event.\n *\n * Note that because {@link module:engine/view/observer/tabobserver~TabObserver} is attached by the\n * {@link module:engine/view/view~View}, this event is available by default.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class TabObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst doc = this.document;\n\n\t\tdoc.on<ViewDocumentKeyEvent>( 'keydown', ( evt, data ) => {\n\t\t\tif (\n\t\t\t\t!this.isEnabled ||\n\t\t\t\tdata.keyCode != keyCodes.tab ||\n\t\t\t\tdata.ctrlKey\n\t\t\t) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst event = new BubblingEventInfo( doc, 'tab', doc.selection.getFirstRange()! );\n\n\t\t\tdoc.fire<ViewDocumentTabEvent>( event, data );\n\n\t\t\tif ( event.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe(): void {}\n}\n\nexport type ViewDocumentTabEvent = BubblingEvent<{\n\tname: 'tab';\n\targs: ViewDocumentKeyEvent[ 'args' ];\n}>;\n\n/**\n * Event fired when the user presses a tab key.\n *\n * Introduced by {@link module:engine/view/observer/tabobserver~TabObserver}.\n *\n * Note that because {@link module:engine/view/observer/tabobserver~TabObserver} is attached by the\n * {@link module:engine/view/view~View}, this event is available by default.\n *\n * @event module:engine/view/document~Document#event:tab\n *\n * @param {module:engine/view/observer/domeventdata~DomEventData} data\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/view\n */\n\nimport Document, { type ViewDocumentLayoutChangedEvent } from './document';\nimport DowncastWriter from './downcastwriter';\nimport Renderer from './renderer';\nimport DomConverter from './domconverter';\nimport Position from './position';\nimport Range from './range';\nimport Selection from './selection';\n\nimport type { default as Observer, ObserverConstructor } from './observer/observer';\nimport type { ViewDocumentSelectionChangeEvent } from './documentselection';\nimport type { StylesProcessor } from './stylesmap';\nimport type Element from './element';\nimport type Item from './item';\n\nimport KeyObserver from './observer/keyobserver';\nimport FakeSelectionObserver from './observer/fakeselectionobserver';\nimport MutationObserver from './observer/mutationobserver';\nimport SelectionObserver from './observer/selectionobserver';\nimport FocusObserver from './observer/focusobserver';\nimport CompositionObserver from './observer/compositionobserver';\nimport InputObserver from './observer/inputobserver';\nimport ArrowKeysObserver from './observer/arrowkeysobserver';\nimport TabObserver from './observer/tabobserver';\n\nimport {\n\tCKEditorError,\n\tObservableMixin,\n\tscrollViewportToShowTarget,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\nimport { injectUiElementHandling } from './uielement';\nimport { injectQuirksHandling } from './filler';\n\n/**\n * Editor's view controller class. Its main responsibility is DOM - View management for editing purposes, to provide\n * abstraction over the DOM structure and events and hide all browsers quirks.\n *\n * View controller renders view document to DOM whenever view structure changes. To determine when view can be rendered,\n * all changes need to be done using the {@link module:engine/view/view~View#change} method, using\n * {@link module:engine/view/downcastwriter~DowncastWriter}:\n *\n *\t\tview.change( writer => {\n *\t\t\twriter.insert( position, writer.createText( 'foo' ) );\n *\t\t} );\n *\n * View controller also register {@link module:engine/view/observer/observer~Observer observers} which observes changes\n * on DOM and fire events on the {@link module:engine/view/document~Document Document}.\n * Note that the following observers are added by the class constructor and are always available:\n *\n * * {@link module:engine/view/observer/selectionobserver~SelectionObserver},\n * * {@link module:engine/view/observer/focusobserver~FocusObserver},\n * * {@link module:engine/view/observer/keyobserver~KeyObserver},\n * * {@link module:engine/view/observer/fakeselectionobserver~FakeSelectionObserver}.\n * * {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n * * {@link module:engine/view/observer/inputobserver~InputObserver}.\n * * {@link module:engine/view/observer/arrowkeysobserver~ArrowKeysObserver}.\n * * {@link module:engine/view/observer/tabobserver~TabObserver}.\n *\n * This class also {@link module:engine/view/view~View#attachDomRoot binds the DOM and the view elements}.\n *\n * If you do not need full a DOM - view management, and only want to transform a tree of view elements to a tree of DOM\n * elements you do not need this controller. You can use the {@link module:engine/view/domconverter~DomConverter DomConverter} instead.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class View extends ObservableMixin() {\n\tpublic readonly document: Document;\n\tpublic readonly domConverter: DomConverter;\n\tpublic readonly domRoots: Map<string, HTMLElement>;\n\n\tdeclare public isRenderingInProgress: boolean;\n\tdeclare public hasDomSelection: boolean;\n\n\tprivate readonly _renderer: Renderer;\n\tprivate readonly _initialDomRootAttributes: WeakMap<HTMLElement, Record<string, string>>;\n\tprivate readonly _observers: Map<ObserverConstructor, Observer>;\n\tprivate readonly _writer: DowncastWriter;\n\tprivate _ongoingChange: boolean;\n\tprivate _postFixersInProgress: boolean;\n\tprivate _renderingDisabled: boolean;\n\tprivate _hasChangedSinceTheLastRendering: boolean;\n\n\t/**\n\t * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor The styles processor instance.\n\t */\n\tconstructor( stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Instance of the {@link module:engine/view/document~Document} associated with this view controller.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = new Document( stylesProcessor );\n\n\t\t/**\n\t\t * Instance of the {@link module:engine/view/domconverter~DomConverter domConverter} used by\n\t\t * {@link module:engine/view/view~View#_renderer renderer}\n\t\t * and {@link module:engine/view/observer/observer~Observer observers}.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/view/domconverter~DomConverter}\n\t\t */\n\t\tthis.domConverter = new DomConverter( this.document );\n\n\t\t/**\n\t\t * Roots of the DOM tree. Map on the `HTMLElement`s with roots names as keys.\n\t\t *\n\t\t * @readonly\n\t\t * @type {Map.<String, HTMLElement>}\n\t\t */\n\t\tthis.domRoots = new Map();\n\n\t\t/**\n\t\t * Used to prevent calling {@link #forceRender} and {@link #change} during rendering view to the DOM.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} #isRenderingInProgress\n\t\t */\n\t\tthis.set( 'isRenderingInProgress', false );\n\n\t\t/**\n\t\t * Informs whether the DOM selection is inside any of the DOM roots managed by the view.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} #hasDomSelection\n\t\t */\n\t\tthis.set( 'hasDomSelection', false );\n\n\t\t/**\n\t\t * Instance of the {@link module:engine/view/renderer~Renderer renderer}.\n\t\t *\n\t\t * @protected\n\t\t * @type {module:engine/view/renderer~Renderer}\n\t\t */\n\t\tthis._renderer = new Renderer( this.domConverter, this.document.selection );\n\t\tthis._renderer.bind( 'isFocused', 'isSelecting', 'isComposing', '_isFocusChanging' )\n\t\t\t.to( this.document, 'isFocused', 'isSelecting', 'isComposing', '_isFocusChanging' );\n\n\t\t/**\n\t\t * A DOM root attributes cache. It saves the initial values of DOM root attributes before the DOM element\n\t\t * is {@link module:engine/view/view~View#attachDomRoot attached} to the view so later on, when\n\t\t * the view is destroyed ({@link module:engine/view/view~View#detachDomRoot}), they can be easily restored.\n\t\t * This way, the DOM element can go back to the (clean) state as if the editing view never used it.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakMap.<HTMLElement,Object>}\n\t\t */\n\t\tthis._initialDomRootAttributes = new WeakMap();\n\n\t\t/**\n\t\t * Map of registered {@link module:engine/view/observer/observer~Observer observers}.\n\t\t *\n\t\t * @private\n\t\t * @type {Map.<Function, module:engine/view/observer/observer~Observer>}\n\t\t */\n\t\tthis._observers = new Map();\n\n\t\t/**\n\t\t * Is set to `true` when {@link #change view changes} are currently in progress.\n\t\t *\n\t\t * @private\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._ongoingChange = false;\n\n\t\t/**\n\t\t * Used to prevent calling {@link #forceRender} and {@link #change} during rendering view to the DOM.\n\t\t *\n\t\t * @private\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._postFixersInProgress = false;\n\n\t\t/**\n\t\t * Internal flag to temporary disable rendering. See the usage in the {@link #_disableRendering}.\n\t\t *\n\t\t * @private\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._renderingDisabled = false;\n\n\t\t/**\n\t\t * Internal flag that disables rendering when there are no changes since the last rendering.\n\t\t * It stores information about changed selection and changed elements from attached document roots.\n\t\t *\n\t\t * @private\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._hasChangedSinceTheLastRendering = false;\n\n\t\t/**\n\t\t * DowncastWriter instance used in {@link #change change method} callbacks.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/view/downcastwriter~DowncastWriter}\n\t\t */\n\t\tthis._writer = new DowncastWriter( this.document );\n\n\t\t// Add default observers.\n\t\tthis.addObserver( MutationObserver );\n\t\tthis.addObserver( SelectionObserver );\n\t\tthis.addObserver( FocusObserver );\n\t\tthis.addObserver( KeyObserver );\n\t\tthis.addObserver( FakeSelectionObserver );\n\t\tthis.addObserver( CompositionObserver );\n\t\tthis.addObserver( ArrowKeysObserver );\n\t\tthis.addObserver( InputObserver );\n\t\tthis.addObserver( TabObserver );\n\n\t\t// Inject quirks handlers.\n\t\tinjectQuirksHandling( this );\n\t\tinjectUiElementHandling( this );\n\n\t\t// Use 'normal' priority so that rendering is performed as first when using that priority.\n\t\tthis.on<ViewRenderEvent>( 'render', () => {\n\t\t\tthis._render();\n\n\t\t\t// Informs that layout has changed after render.\n\t\t\tthis.document.fire<ViewDocumentLayoutChangedEvent>( 'layoutChanged' );\n\n\t\t\t// Reset the `_hasChangedSinceTheLastRendering` flag after rendering.\n\t\t\tthis._hasChangedSinceTheLastRendering = false;\n\t\t} );\n\n\t\t// Listen to the document selection changes directly.\n\t\tthis.listenTo<ViewDocumentSelectionChangeEvent>( this.document.selection, 'change', () => {\n\t\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\t} );\n\n\t\t// Trigger re-render if only the focus changed.\n\t\tthis.listenTo<ObservableChangeEvent>( this.document, 'change:isFocused', () => {\n\t\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches a DOM root element to the view element and enable all observers on that element.\n\t * Also {@link module:engine/view/renderer~Renderer#markToSync mark element} to be synchronized\n\t * with the view what means that all child nodes will be removed and replaced with content of the view root.\n\t *\n\t * This method also will change view element name as the same as tag name of given dom root.\n\t * Name is always transformed to lower case.\n\t *\n\t * **Note:** Use {@link #detachDomRoot `detachDomRoot()`} to revert this action.\n\t *\n\t * @param {Element} domRoot DOM root element.\n\t * @param {String} [name='main'] Name of the root.\n\t */\n\tpublic attachDomRoot( domRoot: HTMLElement, name: string = 'main' ): void {\n\t\tconst viewRoot = this.document.getRoot( name )!;\n\n\t\t// Set view root name the same as DOM root tag name.\n\t\tviewRoot._name = domRoot.tagName.toLowerCase();\n\n\t\tconst initialDomRootAttributes: Record<string, string> = {};\n\n\t\t// 1. Copy and cache the attributes to remember the state of the element before attaching.\n\t\t//    The cached attributes will be restored in detachDomRoot() so the element goes to the\n\t\t//    clean state as if the editing view never used it.\n\t\t// 2. Apply the attributes using the view writer, so they all go under the control of the engine.\n\t\t//    The editing view takes over the attribute management completely because various\n\t\t//    features (e.g. addPlaceholder()) require dynamic changes of those attributes and they\n\t\t//    cannot be managed by the engine and the UI library at the same time.\n\t\tfor ( const { name, value } of Array.from( domRoot.attributes ) ) {\n\t\t\tinitialDomRootAttributes[ name ] = value;\n\n\t\t\t// Do not use writer.setAttribute() for the class attribute. The EditableUIView class\n\t\t\t// and its descendants could have already set some using the writer.addClass() on the view\n\t\t\t// document root. They haven't been rendered yet so they are not present in the DOM root.\n\t\t\t// Using writer.setAttribute( 'class', ... ) would override them completely.\n\t\t\tif ( name === 'class' ) {\n\t\t\t\tthis._writer.addClass( value.split( ' ' ), viewRoot );\n\t\t\t} else {\n\t\t\t\tthis._writer.setAttribute( name, value, viewRoot );\n\t\t\t}\n\t\t}\n\n\t\tthis._initialDomRootAttributes.set( domRoot, initialDomRootAttributes );\n\n\t\tconst updateContenteditableAttribute = () => {\n\t\t\tthis._writer.setAttribute( 'contenteditable', ( !viewRoot.isReadOnly ).toString(), viewRoot );\n\n\t\t\tif ( viewRoot.isReadOnly ) {\n\t\t\t\tthis._writer.addClass( 'ck-read-only', viewRoot );\n\t\t\t} else {\n\t\t\t\tthis._writer.removeClass( 'ck-read-only', viewRoot );\n\t\t\t}\n\t\t};\n\n\t\t// Set initial value.\n\t\tupdateContenteditableAttribute();\n\n\t\tthis.domRoots.set( name, domRoot );\n\t\tthis.domConverter.bindElements( domRoot, viewRoot );\n\t\tthis._renderer.markToSync( 'children', viewRoot );\n\t\tthis._renderer.markToSync( 'attributes', viewRoot );\n\t\tthis._renderer.domDocuments.add( domRoot.ownerDocument );\n\n\t\tviewRoot.on( 'change:children', ( evt, node ) => this._renderer.markToSync( 'children', node ) );\n\t\tviewRoot.on( 'change:attributes', ( evt, node ) => this._renderer.markToSync( 'attributes', node ) );\n\t\tviewRoot.on( 'change:text', ( evt, node ) => this._renderer.markToSync( 'text', node ) );\n\t\tviewRoot.on( 'change:isReadOnly', () => this.change( updateContenteditableAttribute ) );\n\n\t\tviewRoot.on( 'change', () => {\n\t\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\t} );\n\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.observe( domRoot, name );\n\t\t}\n\t}\n\n\t/**\n\t * Detaches a DOM root element from the view element and restores its attributes to the state before\n\t * {@link #attachDomRoot `attachDomRoot()`}.\n\t *\n\t * @param {String} name Name of the root to detach.\n\t */\n\tpublic detachDomRoot( name: string ): void {\n\t\tconst domRoot = this.domRoots.get( name )!;\n\n\t\t// Remove all root attributes so the DOM element is \"bare\".\n\t\tArray.from( domRoot.attributes ).forEach( ( { name } ) => domRoot.removeAttribute( name ) );\n\n\t\tconst initialDomRootAttributes = this._initialDomRootAttributes.get( domRoot );\n\n\t\t// Revert all view root attributes back to the state before attachDomRoot was called.\n\t\tfor ( const attribute in initialDomRootAttributes ) {\n\t\t\tdomRoot.setAttribute( attribute, initialDomRootAttributes[ attribute ] );\n\t\t}\n\n\t\tthis.domRoots.delete( name );\n\t\tthis.domConverter.unbindDomElement( domRoot );\n\t}\n\n\t/**\n\t * Gets DOM root element.\n\t *\n\t * @param {String} [name='main']  Name of the root.\n\t * @returns {Element} DOM root element instance.\n\t */\n\tpublic getDomRoot( name: string = 'main' ): HTMLElement | undefined {\n\t\treturn this.domRoots.get( name );\n\t}\n\n\t/**\n\t * Creates observer of the given type if not yet created, {@link module:engine/view/observer/observer~Observer#enable enables} it\n\t * and {@link module:engine/view/observer/observer~Observer#observe attaches} to all existing and future\n\t * {@link #domRoots DOM roots}.\n\t *\n\t * Note: Observers are recognized by their constructor (classes). A single observer will be instantiated and used only\n\t * when registered for the first time. This means that features and other components can register a single observer\n\t * multiple times without caring whether it has been already added or not.\n\t *\n\t * @param {Function} Observer The constructor of an observer to add.\n\t * Should create an instance inheriting from {@link module:engine/view/observer/observer~Observer}.\n\t * @returns {module:engine/view/observer/observer~Observer} Added observer instance.\n\t */\n\tpublic addObserver( ObserverConstructor: ObserverConstructor ): Observer {\n\t\tlet observer = this._observers.get( ObserverConstructor );\n\n\t\tif ( observer ) {\n\t\t\treturn observer;\n\t\t}\n\n\t\tobserver = new ObserverConstructor( this ) as Observer;\n\n\t\tthis._observers.set( ObserverConstructor, observer );\n\n\t\tfor ( const [ name, domElement ] of this.domRoots ) {\n\t\t\tobserver.observe( domElement, name );\n\t\t}\n\n\t\tobserver.enable();\n\n\t\treturn observer;\n\t}\n\n\t/**\n\t * Returns observer of the given type or `undefined` if such observer has not been added yet.\n\t *\n\t * @param {Function} Observer The constructor of an observer to get.\n\t * @returns {module:engine/view/observer/observer~Observer|undefined} Observer instance or undefined.\n\t */\n\tpublic getObserver<T extends ObserverConstructor>( ObserverConstructor: T ): InstanceType<T> | undefined {\n\t\treturn this._observers.get( ObserverConstructor ) as ( InstanceType<T> | undefined );\n\t}\n\n\t/**\n\t * Disables all added observers.\n\t */\n\tpublic disableObservers(): void {\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.disable();\n\t\t}\n\t}\n\n\t/**\n\t * Enables all added observers.\n\t */\n\tpublic enableObservers(): void {\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.enable();\n\t\t}\n\t}\n\n\t/**\n\t * Scrolls the page viewport and {@link #domRoots} with their ancestors to reveal the\n\t * caret, if not already visible to the user.\n\t */\n\tpublic scrollToTheSelection(): void {\n\t\tconst range = this.document.selection.getFirstRange();\n\n\t\tif ( range ) {\n\t\t\tscrollViewportToShowTarget( {\n\t\t\t\ttarget: this.domConverter.viewRangeToDom( range ),\n\t\t\t\tviewportOffset: 20\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * It will focus DOM element representing {@link module:engine/view/editableelement~EditableElement EditableElement}\n\t * that is currently having selection inside.\n\t */\n\tpublic focus(): void {\n\t\tif ( !this.document.isFocused ) {\n\t\t\tconst editable = this.document.selection.editableElement;\n\n\t\t\tif ( editable ) {\n\t\t\t\tthis.domConverter.focus( editable );\n\t\t\t\tthis.forceRender();\n\t\t\t} else {\n\t\t\t\t// Before focusing view document, selection should be placed inside one of the view's editables.\n\t\t\t\t// Normally its selection will be converted from model document (which have default selection), but\n\t\t\t\t// when using view document on its own, we need to manually place selection before focusing it.\n\t\t\t\t//\n\t\t\t\t// @if CK_DEBUG // console.warn( 'There is no selection in any editable to focus.' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * The `change()` method is the primary way of changing the view. You should use it to modify any node in the view tree.\n\t * It makes sure that after all changes are made the view is rendered to the DOM (assuming that the view will be changed\n\t * inside the callback). It prevents situations when the DOM is updated when the view state is not yet correct. It allows\n\t * to nest calls one inside another and still performs a single rendering after all those changes are made.\n\t * It also returns the return value of its callback.\n\t *\n\t *\t\tconst text = view.change( writer => {\n\t *\t\t\tconst newText = writer.createText( 'foo' );\n\t *\t\t\twriter.insert( position1, newText );\n\t *\n\t *\t\t\tview.change( writer => {\n\t *\t\t\t\twriter.insert( position2, writer.createText( 'bar' ) );\n\t *\t\t\t} );\n\t *\n\t * \t\t\twriter.remove( range );\n\t *\n\t * \t\t\treturn newText;\n\t *\t\t} );\n\t *\n\t * When the outermost change block is done and rendering to the DOM is over the\n\t * {@link module:engine/view/view~View#event:render `View#render`} event is fired.\n\t *\n\t * This method throws a `applying-view-changes-on-rendering` error when\n\t * the change block is used after rendering to the DOM has started.\n\t *\n\t * @param {Function} callback Callback function which may modify the view.\n\t * @returns {*} Value returned by the callback.\n\t */\n\tpublic change<TReturn>( callback: ( writer: DowncastWriter ) => TReturn ): TReturn {\n\t\tif ( this.isRenderingInProgress || this._postFixersInProgress ) {\n\t\t\t/**\n\t\t\t * Thrown when there is an attempt to make changes to the view tree when it is in incorrect state. This may\n\t\t\t * cause some unexpected behaviour and inconsistency between the DOM and the view.\n\t\t\t * This may be caused by:\n\t\t\t *\n\t\t\t * * calling {@link #change} or {@link #forceRender} during rendering process,\n\t\t\t * * calling {@link #change} or {@link #forceRender} inside of\n\t\t\t *   {@link module:engine/view/document~Document#registerPostFixer post-fixer function}.\n\t\t\t *\n\t\t\t * @error cannot-change-view-tree\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'cannot-change-view-tree',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\ttry {\n\t\t\t// Recursive call to view.change() method - execute listener immediately.\n\t\t\tif ( this._ongoingChange ) {\n\t\t\t\treturn callback( this._writer );\n\t\t\t}\n\n\t\t\t// This lock will assure that all recursive calls to view.change() will end up in same block - one \"render\"\n\t\t\t// event for all nested calls.\n\t\t\tthis._ongoingChange = true;\n\t\t\tconst callbackResult = callback( this._writer );\n\t\t\tthis._ongoingChange = false;\n\n\t\t\t// This lock is used by editing controller to render changes from outer most model.change() once. As plugins might call\n\t\t\t// view.change() inside model.change() block - this will ensures that postfixers and rendering are called once after all\n\t\t\t// changes. Also, we don't need to render anything if there're no changes since last rendering.\n\t\t\tif ( !this._renderingDisabled && this._hasChangedSinceTheLastRendering ) {\n\t\t\t\tthis._postFixersInProgress = true;\n\t\t\t\tthis.document._callPostFixers( this._writer );\n\t\t\t\tthis._postFixersInProgress = false;\n\n\t\t\t\tthis.fire<ViewRenderEvent>( 'render' );\n\t\t\t}\n\n\t\t\treturn callbackResult;\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\t/**\n\t * Forces rendering {@link module:engine/view/document~Document view document} to DOM. If any view changes are\n\t * currently in progress, rendering will start after all {@link #change change blocks} are processed.\n\t *\n\t * Note that this method is dedicated for special cases. All view changes should be wrapped in the {@link #change}\n\t * block and the view will automatically check whether it needs to render DOM or not.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `applying-view-changes-on-rendering` when\n\t * trying to re-render when rendering to DOM has already started.\n\t */\n\tpublic forceRender(): void {\n\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\tthis.document._isFocusChanging = false;\n\t\tthis.change( () => {} );\n\t}\n\n\t/**\n\t * Destroys this instance. Makes sure that all observers are destroyed and listeners removed.\n\t */\n\tpublic destroy(): void {\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.destroy();\n\t\t}\n\n\t\tthis.document.destroy();\n\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link #createPositionBefore},\n\t * * {@link #createPositionAfter},\n\t *\n\t * @param {module:engine/view/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic createPositionAt( itemOrPosition: Item | Position, offset?: number | 'before' | 'after' | 'end' ): Position {\n\t\treturn Position._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @param {module:engine/view/item~Item} item View item after which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn Position._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @param {module:engine/view/item~Item} item View item before which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn Position._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** This factory method creates it's own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param {module:engine/view/position~Position} start Start position.\n\t * @param {module:engine/view/position~Position} [end] End position. If not set, range will be collapsed at `start` position.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRange( ...args: ConstructorParameters<typeof Range> ): Range {\n\t\treturn new Range( ...args );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t *\n\t * @param {module:engine/view/item~Item} item\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRangeOn( item: Item ): Range {\n\t\treturn Range._createOn( item );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @param {module:engine/view/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRangeIn( element: Element ): Range {\n\t\treturn Range._createIn( element );\n\t}\n\n\t/**\n\t Creates new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * \t\t// Creates empty selection without ranges.\n\t *\t\tconst selection = view.createSelection();\n\t *\n\t *\t\t// Creates selection at the given range.\n\t *\t\tconst range = view.createRange( start, end );\n\t *\t\tconst selection = view.createSelection( range );\n\t *\n\t *\t\t// Creates selection at the given ranges\n\t * \t\tconst ranges = [ view.createRange( start1, end2 ), view.createRange( star2, end2 ) ];\n\t *\t\tconst selection = view.createSelection( ranges );\n\t *\n\t *\t\t// Creates selection from the other selection.\n\t *\t\tconst otherSelection = view.createSelection();\n\t *\t\tconst selection = view.createSelection( otherSelection );\n\t *\n\t *\t\t// Creates selection from the document selection.\n\t *\t\tconst selection = view.createSelection( editor.editing.view.document.selection );\n\t *\n\t * \t\t// Creates selection at the given position.\n\t *\t\tconst position = view.createPositionFromPath( root, path );\n\t *\t\tconst selection = view.createSelection( position );\n\t *\n\t *\t\t// Creates collapsed selection at the position of given item and offset.\n\t *\t\tconst paragraph = view.createContainerElement( 'paragraph' );\n\t *\t\tconst selection = view.createSelection( paragraph, offset );\n\t *\n\t *\t\t// Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t *\t\t// first child of that element and ends after the last child of that element.\n\t *\t\tconst selection = view.createSelection( paragraph, 'in' );\n\t *\n\t *\t\t// Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t *\t\t// just after the item.\n\t *\t\tconst selection = view.createSelection( paragraph, 'on' );\n\t *\n\t * `Selection`'s factory method allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Creates backward selection.\n\t *\t\tconst selection = view.createSelection( range, { backward: true } );\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t *\t\t// Creates fake selection with label.\n\t *\t\tconst selection = view.createSelection( range, { fake: true, label: 'foo' } );\n\t *\n\t * @param {module:engine/view/selection~Selectable} [selectable=null]\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Offset or place when selectable is an `Item`.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t * @returns {module:engine/view/selection~Selection}\n\t */\n\tpublic createSelection( ...args: ConstructorParameters<typeof Selection> ): Selection {\n\t\treturn new Selection( ...args );\n\t}\n\n\t/**\n\t * Disables or enables rendering. If the flag is set to `true` then the rendering will be disabled.\n\t * If the flag is set to `false` and if there was some change in the meantime, then the rendering action will be performed.\n\t *\n\t * @protected\n\t * @internal\n\t * @param {Boolean} flag A flag indicates whether the rendering should be disabled.\n\t */\n\tpublic _disableRendering( flag: boolean ): void {\n\t\tthis._renderingDisabled = flag;\n\n\t\tif ( flag == false ) {\n\t\t\t// Render when you stop blocking rendering.\n\t\t\tthis.change( () => {} );\n\t\t}\n\t}\n\n\t/**\n\t * Renders all changes. In order to avoid triggering the observers (e.g. selection) all observers are disabled\n\t * before rendering and re-enabled after that.\n\t *\n\t * @private\n\t */\n\tprivate _render(): void {\n\t\tthis.isRenderingInProgress = true;\n\t\tthis.disableObservers();\n\t\tthis._renderer.render();\n\t\tthis.enableObservers();\n\t\tthis.isRenderingInProgress = false;\n\t}\n\n\t/**\n\t * Fired after a topmost {@link module:engine/view/view~View#change change block} and all\n\t * {@link module:engine/view/document~Document#registerPostFixer post-fixers} are executed.\n\t *\n\t * Actual rendering is performed as a first listener on 'normal' priority.\n\t *\n\t *\t\tview.on( 'render', () => {\n\t *\t\t\t// Rendering to the DOM is complete.\n\t *\t\t} );\n\t *\n\t * This event is useful when you want to update interface elements after the rendering, e.g. position of the\n\t * balloon panel. If you wants to change view structure use\n\t * {@link module:engine/view/document~Document#registerPostFixer post-fixers}.\n\t *\n\t * @event module:engine/view/view~View#event:render\n\t */\n}\n\nexport type ViewRenderEvent = {\n\tname: 'render';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/typecheckable\n */\n\nimport type { Marker } from './markercollection';\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type Element from './element';\nimport type LivePosition from './liveposition';\nimport type LiveRange from './liverange';\nimport type Node from './node';\nimport type Position from './position';\nimport type Range from './range';\nimport type RootElement from './rootelement';\nimport type Selection from './selection';\nimport type Text from './text';\nimport type TextProxy from './textproxy';\n\nexport default abstract class TypeCheckable {\n\tpublic is( type: 'node' | 'model:node' ): this is Node | Element | Text | RootElement;\n\tpublic is( type: 'element' | 'model:element' ): this is Element | RootElement;\n\tpublic is( type: 'rootElement' | 'model:rootElement' ): this is RootElement;\n\tpublic is( type: '$text' | 'model:$text' ): this is Text;\n\tpublic is( type: 'position' | 'model:position' ): this is Position | LivePosition;\n\tpublic is( type: 'livePosition' | 'model:livePosition' ): this is LivePosition;\n\tpublic is( type: 'range' | 'model:range' ): this is Range | LiveRange;\n\tpublic is( type: 'liveRange' | 'model:liveRange' ): this is LiveRange;\n\tpublic is( type: 'documentFragment' | 'model:documentFragment' ): this is DocumentFragment;\n\tpublic is( type: 'selection' | 'model:selection' ): this is Selection | DocumentSelection;\n\tpublic is( type: 'documentSelection' | 'model:documentSelection' ): this is DocumentSelection;\n\tpublic is( type: 'marker' | 'model:marker' ): this is Marker;\n\tpublic is( type: '$textProxy' | 'model:$textProxy' ): this is TextProxy;\n\tpublic is<N extends string>( type: 'element' | 'model:element', name: N ): this is ( Element | RootElement ) & { name: N };\n\tpublic is<N extends string>( type: 'rootElement' | 'model:rootElement', name: N ): this is RootElement & { name: N };\n\n\t/* istanbul ignore next */\n\tpublic is(): boolean {\n\t\t// There are a lot of overloads above.\n\t\t// Overriding method in derived classes remove them and only `is( type: string ): boolean` is visible which we don't want.\n\t\t// One option would be to copy them all to all classes, but that's ugly.\n\t\t// It's best when TypeScript compiler doesn't see those overloads, except the one in the top base class.\n\t\t// To overload a method, but not let the compiler see it, do after class definition:\n\t\t// `MyClass.prototype.is = function( type: string ) {...}`\n\t\tthrow new Error( 'is() method is abstract' );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-unused-vars */\n\n/**\n * @module engine/model/node\n */\n\nimport TypeCheckable from './typecheckable';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\n\nimport { CKEditorError, compareArrays, toMap } from '@ckeditor/ckeditor5-utils';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\n/**\n * Model node. Most basic structure of model tree.\n *\n * This is an abstract class that is a base for other classes representing different nodes in model.\n *\n * **Note:** If a node is detached from the model tree, you can manipulate it using it's API.\n * However, it is **very important** that nodes already attached to model tree should be only changed through\n * {@link module:engine/model/writer~Writer Writer API}.\n *\n * Changes done by `Node` methods, like {@link module:engine/model/element~Element#_insertChild _insertChild} or\n * {@link module:engine/model/node~Node#_setAttribute _setAttribute}\n * do not generate {@link module:engine/model/operation/operation~Operation operations}\n * which are essential for correct editor work if you modify nodes in {@link module:engine/model/document~Document document} root.\n *\n * The flow of working on `Node` (and classes that inherits from it) is as such:\n * 1. You can create a `Node` instance, modify it using it's API.\n * 2. Add `Node` to the model using `Batch` API.\n * 3. Change `Node` that was already added to the model using `Batch` API.\n *\n * Similarly, you cannot use `Batch` API on a node that has not been added to the model tree, with the exception\n * of {@link module:engine/model/writer~Writer#insert inserting} that node to the model tree.\n *\n * Be aware that using {@link module:engine/model/writer~Writer#remove remove from Batch API} does not allow to use `Node` API because\n * the information about `Node` is still kept in model document.\n *\n * In case of {@link module:engine/model/element~Element element node}, adding and removing children also counts as changing a node and\n * follows same rules.\n */\nexport default class Node extends TypeCheckable {\n\tpublic parent: Element | DocumentFragment | null;\n\n\tpublic readonly rootName: string | undefined;\n\n\tprivate _attrs: Map<string, unknown>;\n\n\t/**\n\t * Creates a model node.\n\t *\n\t * This is an abstract class, so this constructor should not be used directly.\n\t *\n\t * @abstract\n\t * @param {Object} [attrs] Node's attributes. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t */\n\tconstructor( attrs?: NodeAttributes ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Parent of this node. It could be {@link module:engine/model/element~Element}\n\t\t * or {@link module:engine/model/documentfragment~DocumentFragment}.\n\t\t * Equals to `null` if the node has no parent.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment|null}\n\t\t */\n\t\tthis.parent = null;\n\n\t\t/**\n\t\t * Attributes set on this node.\n\t\t *\n\t\t * @private\n\t\t * @member {Map} module:engine/model/node~Node#_attrs\n\t\t */\n\t\tthis._attrs = toMap( attrs! );\n\t}\n\n\t/**\n\t * {@link module:engine/model/document~Document Document} that owns this root element.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/document~Document|null}\n\t */\n\tpublic get document(): Document | null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Index of this node in it's parent or `null` if the node has no parent.\n\t *\n\t * Accessing this property throws an error if this node's parent element does not contain it.\n\t * This means that model tree got broken.\n\t *\n\t * @readonly\n\t * @type {Number|null}\n\t */\n\tpublic get index(): number | null {\n\t\tlet pos;\n\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( ( pos = this.parent.getChildIndex( this ) ) === null ) {\n\t\t\tthrow new CKEditorError( 'model-node-not-found-in-parent', this );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Offset at which this node starts in it's parent. It is equal to the sum of {@link #offsetSize offsetSize}\n\t * of all it's previous siblings. Equals to `null` if node has no parent.\n\t *\n\t * Accessing this property throws an error if this node's parent element does not contain it.\n\t * This means that model tree got broken.\n\t *\n\t * @readonly\n\t * @type {Number|null}\n\t */\n\tpublic get startOffset(): number | null {\n\t\tlet pos;\n\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( ( pos = this.parent.getChildStartOffset( this ) ) === null ) {\n\t\t\tthrow new CKEditorError( 'model-node-not-found-in-parent', this );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Offset size of this node. Represents how much \"offset space\" is occupied by the node in it's parent.\n\t * It is important for {@link module:engine/model/position~Position position}. When node has `offsetSize` greater than `1`, position\n\t * can be placed between that node start and end. `offsetSize` greater than `1` is for nodes that represents more\n\t * than one entity, i.e. {@link module:engine/model/text~Text text node}.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get offsetSize(): number {\n\t\treturn 1;\n\t}\n\n\t/**\n\t * Offset at which this node ends in it's parent. It is equal to the sum of this node's\n\t * {@link module:engine/model/node~Node#startOffset start offset} and {@link #offsetSize offset size}.\n\t * Equals to `null` if the node has no parent.\n\t *\n\t * @readonly\n\t * @type {Number|null}\n\t */\n\tpublic get endOffset(): number | null {\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.startOffset! + this.offsetSize;\n\t}\n\n\t/**\n\t * Node's next sibling or `null` if the node is a last child of it's parent or if the node has no parent.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/node~Node|null}\n\t */\n\tpublic get nextSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index + 1 ) ) || null;\n\t}\n\n\t/**\n\t * Node's previous sibling or `null` if the node is a first child of it's parent or if the node has no parent.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/node~Node|null}\n\t */\n\tpublic get previousSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index - 1 ) ) || null;\n\t}\n\n\t/**\n\t * The top-most ancestor of the node. If node has no parent it is the root itself. If the node is a part\n\t * of {@link module:engine/model/documentfragment~DocumentFragment}, it's `root` is equal to that `DocumentFragment`.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/node~Node|module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet root: Node | DocumentFragment = this;\n\n\t\twhile ( root.parent ) {\n\t\t\troot = root.parent;\n\t\t}\n\n\t\treturn root;\n\t}\n\n\t/**\n\t * Returns true if the node is in a tree rooted in the document (is a descendant of one of its roots).\n\t *\n\t * @returns {Boolean}\n\t */\n\tpublic isAttached(): boolean {\n\t\treturn this.root.is( 'rootElement' );\n\t}\n\n\t/**\n\t * Gets path to the node. The path is an array containing starting offsets of consecutive ancestors of this node,\n\t * beginning from {@link module:engine/model/node~Node#root root}, down to this node's starting offset. The path can be used to\n\t * create {@link module:engine/model/position~Position Position} instance.\n\t *\n\t *\t\tconst abc = new Text( 'abc' );\n\t *\t\tconst foo = new Text( 'foo' );\n\t *\t\tconst h1 = new Element( 'h1', null, new Text( 'header' ) );\n\t *\t\tconst p = new Element( 'p', null, [ abc, foo ] );\n\t *\t\tconst div = new Element( 'div', null, [ h1, p ] );\n\t *\t\tfoo.getPath(); // Returns [ 1, 3 ]. `foo` is in `p` which is in `div`. `p` starts at offset 1, while `foo` at 3.\n\t *\t\th1.getPath(); // Returns [ 0 ].\n\t *\t\tdiv.getPath(); // Returns [].\n\t *\n\t * @returns {Array.<Number>} The path.\n\t */\n\tpublic getPath(): Array<number> {\n\t\tconst path = [];\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node | DocumentFragment = this;\n\n\t\twhile ( node.parent ) {\n\t\t\tpath.unshift( node.startOffset! );\n\t\t\tnode = node.parent;\n\t\t}\n\n\t\treturn path;\n\t}\n\n\t/**\n\t * Returns ancestors array of this node.\n\t *\n\t * @param {Object} options Options object.\n\t * @param {Boolean} [options.includeSelf=false] When set to `true` this node will be also included in parent's array.\n\t * @param {Boolean} [options.parentFirst=false] When set to `true`, array will be sorted from node's parent to root element,\n\t * otherwise root element will be the first item in the array.\n\t * @returns {Array} Array with ancestors.\n\t */\n\tpublic getAncestors( options: { includeSelf?: boolean; parentFirst?: boolean } = {} ): Array<Node | DocumentFragment> {\n\t\tconst ancestors: Array<Node | DocumentFragment> = [];\n\t\tlet parent = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/model/element~Element} or {@link module:engine/model/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both nodes.\n\t *\n\t * @param {module:engine/model/node~Node} node The second node.\n\t * @param {Object} options Options object.\n\t * @param {Boolean} [options.includeSelf=false] When set to `true` both nodes will be considered \"ancestors\" too.\n\t * Which means that if e.g. node A is inside B, then their common ancestor will be B.\n\t * @returns {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment|null}\n\t */\n\tpublic getCommonAncestor( node: Node, options: { includeSelf?: boolean } = {} ): Element | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors( options );\n\t\tconst ancestorsB = node.getAncestors( options );\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ] as ( Element | DocumentFragment );\n\t}\n\n\t/**\n\t * Returns whether this node is before given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/model/documentfragment~DocumentFragment}s).\n\t *\n\t * @param {module:engine/model/node~Node} node Node to compare with.\n\t * @returns {Boolean}\n\t */\n\tpublic isBefore( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst thisPath = this.getPath();\n\t\tconst nodePath = node.getPath();\n\n\t\tconst result = compareArrays( thisPath, nodePath );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'prefix':\n\t\t\t\treturn true;\n\n\t\t\tcase 'extension':\n\t\t\t\treturn false;\n\n\t\t\tdefault:\n\t\t\t\treturn thisPath[ result as number ] < nodePath[ result as number ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns whether this node is after given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/model/documentfragment~DocumentFragment}s).\n\t *\n\t * @param {module:engine/model/node~Node} node Node to compare with.\n\t * @returns {Boolean}\n\t */\n\tpublic isAfter( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// In other cases, just check if the `node` is before, and return the opposite.\n\t\treturn !this.isBefore( node );\n\t}\n\n\t/**\n\t * Checks if the node has an attribute with given key.\n\t *\n\t * @param {String} key Key of attribute to check.\n\t * @returns {Boolean} `true` if attribute with given key is set on node, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this._attrs.has( key );\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on node.\n\t *\n\t * @param {String} key Key of attribute to look for.\n\t * @returns {*} Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this._attrs.get( key );\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t *\n\t * @returns {Iterable.<*>}\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this._attrs.entries();\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attribute keys.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this._attrs.keys();\n\t}\n\n\t/**\n\t * Converts `Node` to plain object and returns it.\n\t *\n\t * @returns {Object} `Node` converted to plain object.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json: any = {};\n\n\t\t// Serializes attributes to the object.\n\t\t// attributes = { a: 'foo', b: 1, c: true }.\n\t\tif ( this._attrs.size ) {\n\t\t\tjson.attributes = Array.from( this._attrs ).reduce( ( result, attr ) => {\n\t\t\t\tresult[ attr[ 0 ] ] = attr[ 1 ];\n\n\t\t\t\treturn result;\n\t\t\t}, {} as any );\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a copy of this node, that is a node with exactly same attributes, and returns it.\n\t *\n\t * @internal\n\t * @protected\n\t * @returns {module:engine/model/node~Node} Node with same attributes as this node.\n\t */\n\tpublic _clone( _deep?: boolean ): Node {\n\t\treturn new Node( this._attrs );\n\t}\n\n\t/**\n\t * Removes this node from it's parent.\n\t *\n\t * @internal\n\t * @see module:engine/model/writer~Writer#remove\n\t * @protected\n\t */\n\tpublic _remove(): void {\n\t\tthis.parent!._removeChildren( this.index! );\n\t}\n\n\t/**\n\t * Sets attribute on the node. If attribute with the same key already is set, it's value is overwritten.\n\t *\n\t * @see module:engine/model/writer~Writer#setAttribute\n\t * @internal\n\t * @protected\n\t * @param {String} key Key of attribute to set.\n\t * @param {*} value Attribute value.\n\t */\n\tpublic _setAttribute( key: string, value: unknown ): void {\n\t\tthis._attrs.set( key, value );\n\t}\n\n\t/**\n\t * Removes all attributes from the node and sets given attributes.\n\t *\n\t * @see module:engine/model/writer~Writer#setAttributes\n\t * @internal\n\t * @protected\n\t * @param {Object} [attrs] Attributes to set. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t */\n\tpublic _setAttributesTo( attrs: NodeAttributes ): void {\n\t\tthis._attrs = toMap( attrs );\n\t}\n\n\t/**\n\t * Removes an attribute with given key from the node.\n\t *\n\t * @see module:engine/model/writer~Writer#removeAttribute\n\t * @internal\n\t * @protected\n\t * @param {String} key Key of attribute to remove.\n\t * @returns {Boolean} `true` if the attribute was set on the element, `false` otherwise.\n\t */\n\tpublic _removeAttribute( key: string ): boolean {\n\t\treturn this._attrs.delete( key );\n\t}\n\n\t/**\n\t * Removes all attributes from the node.\n\t *\n\t * @see module:engine/model/writer~Writer#clearAttributes\n\t * @internal\n\t * @protected\n\t */\n\tpublic _clearAttributes(): void {\n\t\tthis._attrs.clear();\n\t}\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n * This method is useful when processing model objects that are of unknown type. For example, a function\n * may return a {@link module:engine/model/documentfragment~DocumentFragment} or a {@link module:engine/model/node~Node}\n * that can be either a text node or an element. This method can be used to check what kind of object is returned.\n *\n *\t\tsomeObject.is( 'element' ); // -> true if this is an element\n *\t\tsomeObject.is( 'node' ); // -> true if this is a node (a text node or an element)\n *\t\tsomeObject.is( 'documentFragment' ); // -> true if this is a document fragment\n *\n * Since this method is also available on a range of view objects, you can prefix the type of the object with\n * `model:` or `view:` to check, for example, if this is the model's or view's element:\n *\n *\t\tmodelElement.is( 'model:element' ); // -> true\n *\t\tmodelElement.is( 'view:element' ); // -> false\n *\n * By using this method it is also possible to check a name of an element:\n *\n *\t\timageElement.is( 'element', 'imageBlock' ); // -> true\n *\t\timageElement.is( 'element', 'imageBlock' ); // -> same as above\n *\t\timageElement.is( 'model:element', 'imageBlock' ); // -> same as above, but more precise\n *\n * The list of model objects which implement the `is()` method:\n *\n * * {@link module:engine/model/node~Node#is `Node#is()`}\n * * {@link module:engine/model/text~Text#is `Text#is()`}\n * * {@link module:engine/model/element~Element#is `Element#is()`}\n * * {@link module:engine/model/rootelement~RootElement#is `RootElement#is()`}\n * * {@link module:engine/model/position~Position#is `Position#is()`}\n * * {@link module:engine/model/liveposition~LivePosition#is `LivePosition#is()`}\n * * {@link module:engine/model/range~Range#is `Range#is()`}\n * * {@link module:engine/model/liverange~LiveRange#is `LiveRange#is()`}\n * * {@link module:engine/model/documentfragment~DocumentFragment#is `DocumentFragment#is()`}\n * * {@link module:engine/model/selection~Selection#is `Selection#is()`}\n * * {@link module:engine/model/documentselection~DocumentSelection#is `DocumentSelection#is()`}\n * * {@link module:engine/model/markercollection~Marker#is `Marker#is()`}\n * * {@link module:engine/model/textproxy~TextProxy#is `TextProxy#is()`}\n *\n * @method #is\n * @param {String} type Type to check.\n * @returns {Boolean}\n */\nNode.prototype.is = function( type: string ): boolean {\n\treturn type === 'node' || type === 'model:node';\n};\n\n/**\n * The node's parent does not contain this node.\n *\n * @error model-node-not-found-in-parent\n */\n\nexport type NodeAttributes = Record<string, unknown> | Iterable<[ string, unknown ]>;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/nodelist\n */\n\nimport Node from './node';\n\nimport { CKEditorError, spliceArray } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Provides an interface to operate on a list of {@link module:engine/model/node~Node nodes}. `NodeList` is used internally\n * in classes like {@link module:engine/model/element~Element Element}\n * or {@link module:engine/model/documentfragment~DocumentFragment DocumentFragment}.\n */\nexport default class NodeList implements Iterable<Node> {\n\tprivate _nodes: Array<Node>;\n\n\t/**\n\t * Creates an empty node list.\n\t *\n\t * @protected\n\t * @param {Iterable.<module:engine/model/node~Node>} [nodes] Nodes contained in this node list.\n\t */\n\tconstructor( nodes?: Iterable<Node> ) {\n\t\t/**\n\t\t * Nodes contained in this node list.\n\t\t *\n\t\t * @private\n\t\t * @member {Array.<module:engine/model/node~Node>}\n\t\t */\n\t\tthis._nodes = [];\n\n\t\tif ( nodes ) {\n\t\t\tthis._insertNodes( 0, nodes );\n\t\t}\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all nodes contained inside this node list.\n\t *\n\t * @returns {Iterator.<module:engine/model/node~Node>}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<Node> {\n\t\treturn this._nodes[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Number of nodes contained inside this node list.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get length(): number {\n\t\treturn this._nodes.length;\n\t}\n\n\t/**\n\t * Sum of {@link module:engine/model/node~Node#offsetSize offset sizes} of all nodes contained inside this node list.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get maxOffset(): number {\n\t\treturn this._nodes.reduce( ( sum, node ) => sum + node.offsetSize, 0 );\n\t}\n\n\t/**\n\t * Gets the node at the given index. Returns `null` if incorrect index was passed.\n\t *\n\t * @param {Number} index Index of node.\n\t * @returns {module:engine/model/node~Node|null} Node at given index.\n\t */\n\tpublic getNode( index: number ): Node | null {\n\t\treturn this._nodes[ index ] || null;\n\t}\n\n\t/**\n\t * Returns an index of the given node. Returns `null` if given node is not inside this node list.\n\t *\n\t * @param {module:engine/model/node~Node} node Child node to look for.\n\t * @returns {Number|null} Child node's index.\n\t */\n\tpublic getNodeIndex( node: Node ): number | null {\n\t\tconst index = this._nodes.indexOf( node );\n\n\t\treturn index == -1 ? null : index;\n\t}\n\n\t/**\n\t * Returns the starting offset of given node. Starting offset is equal to the sum of\n\t * {@link module:engine/model/node~Node#offsetSize offset sizes} of all nodes that are before this node in this node list.\n\t *\n\t * @param {module:engine/model/node~Node} node Node to look for.\n\t * @returns {Number|null} Node's starting offset.\n\t */\n\tpublic getNodeStartOffset( node: Node ): number | null {\n\t\tconst index = this.getNodeIndex( node );\n\n\t\treturn index === null ? null : this._nodes.slice( 0, index ).reduce( ( sum, node ) => sum + node.offsetSize, 0 );\n\t}\n\n\t/**\n\t * Converts index to offset in node list.\n\t *\n\t * Returns starting offset of a node that is at given index. Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * `model-nodelist-index-out-of-bounds` if given index is less than `0` or more than {@link #length}.\n\t *\n\t * @param {Number} index Node's index.\n\t * @returns {Number} Node's starting offset.\n\t */\n\tpublic indexToOffset( index: number ): number {\n\t\tif ( index == this._nodes.length ) {\n\t\t\treturn this.maxOffset;\n\t\t}\n\n\t\tconst node = this._nodes[ index ];\n\n\t\tif ( !node ) {\n\t\t\t/**\n\t\t\t * Given index cannot be found in the node list.\n\t\t\t *\n\t\t\t * @error model-nodelist-index-out-of-bounds\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-nodelist-index-out-of-bounds', this );\n\t\t}\n\n\t\treturn this.getNodeStartOffset( node )!;\n\t}\n\n\t/**\n\t * Converts offset in node list to index.\n\t *\n\t * Returns index of a node that occupies given offset. Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * `model-nodelist-offset-out-of-bounds` if given offset is less than `0` or more than {@link #maxOffset}.\n\t *\n\t * @param {Number} offset Offset to look for.\n\t * @returns {Number} Index of a node that occupies given offset.\n\t */\n\tpublic offsetToIndex( offset: number ): number {\n\t\tlet totalOffset = 0;\n\n\t\tfor ( const node of this._nodes ) {\n\t\t\tif ( offset >= totalOffset && offset < totalOffset + node.offsetSize ) {\n\t\t\t\treturn this.getNodeIndex( node )!;\n\t\t\t}\n\n\t\t\ttotalOffset += node.offsetSize;\n\t\t}\n\n\t\tif ( totalOffset != offset ) {\n\t\t\t/**\n\t\t\t * Given offset cannot be found in the node list.\n\t\t\t *\n\t\t\t * @error model-nodelist-offset-out-of-bounds\n\t\t\t * @param {Number} offset\n\t\t\t * @param {module:engine/model/nodelist~NodeList} nodeList Stringified node list.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-nodelist-offset-out-of-bounds',\n\t\t\t\tthis,\n\t\t\t\t{\n\t\t\t\t\toffset,\n\t\t\t\t\tnodeList: this\n\t\t\t\t}\n\t\t\t);\n\t\t}\n\n\t\treturn this.length;\n\t}\n\n\t/**\n\t * Inserts given nodes at given index.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {Number} index Index at which nodes should be inserted.\n\t * @param {Iterable.<module:engine/model/node~Node>} nodes Nodes to be inserted.\n\t */\n\tpublic _insertNodes( index: number, nodes: Iterable<Node> ): void {\n\t\t// Validation.\n\t\tfor ( const node of nodes ) {\n\t\t\tif ( !( node instanceof Node ) ) {\n\t\t\t\t/**\n\t\t\t\t * Trying to insert an object which is not a Node instance.\n\t\t\t\t *\n\t\t\t\t * @error model-nodelist-insertnodes-not-node\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-nodelist-insertnodes-not-node', this );\n\t\t\t}\n\t\t}\n\n\t\tthis._nodes = spliceArray<Node>( this._nodes, Array.from( nodes ), index, 0 );\n\t}\n\n\t/**\n\t * Removes one or more nodes starting at the given index.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {Number} indexStart Index of the first node to remove.\n\t * @param {Number} [howMany=1] Number of nodes to remove.\n\t * @returns {Array.<module:engine/model/node~Node>} Array containing removed nodes.\n\t */\n\tpublic _removeNodes( indexStart: number, howMany: number = 1 ): Array<Node> {\n\t\treturn this._nodes.splice( indexStart, howMany );\n\t}\n\n\t/**\n\t * Converts `NodeList` instance to an array containing nodes that were inserted in the node list. Nodes\n\t * are also converted to their plain object representation.\n\t *\n\t * @returns {Array.<module:engine/model/node~Node>} `NodeList` instance converted to `Array`.\n\t */\n\tpublic toJSON(): unknown {\n\t\treturn this._nodes.map( node => node.toJSON() );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/splicearray\n */\n\nconst BIG_CHUNK_SIZE = 10000;\n\n/**\n * Splices one array into another. To be used instead of `Array.prototype.splice` as the latter may\n * throw \"Maximum call stack size exceeded\" when passed huge number of items to insert.\n *\n * Note: in contrary to Array.splice, this function does not modify the original `target`.\n *\n * ```ts\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 0, 0 );\t// [ 3, 4, 1, 2 ]\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 1, 1 );\t// [ 1, 3, 4 ]\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 1, 0 );\t// [ 1, 3, 4, 2 ]\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 2, 0 );\t// [ 1, 2, 3, 4 ]\n * spliceArray( [ 1, 2 ], [],       0, 1 );\t// [ 2 ]\n * ```\n *\n * @param target Array to be spliced.\n * @param source Array of elements to be inserted to target.\n * @param start Index at which nodes should be inserted/removed.\n * @param count Number of items.\n *\n * @returns New spliced array.\n */\nexport default function spliceArray<T>( target: Array<T>, source: Array<T>, start: number, count: number ): Array<T> {\n\t// In case of performance problems, see: https://github.com/ckeditor/ckeditor5/pull/12429/files#r965850568\n\tif ( Math.max( source.length, target.length ) > BIG_CHUNK_SIZE ) {\n\t\treturn target.slice( 0, start ).concat( source ).concat( target.slice( start + count, target.length ) );\n\t} else {\n\t\tconst newTarget = Array.from( target );\n\t\tnewTarget.splice( start, count, ...source );\n\n\t\treturn newTarget;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/text\n */\n\nimport Node, { type NodeAttributes } from './node';\n\n// @if CK_DEBUG_ENGINE // const { convertMapToStringifiedObject } = require( '../dev-utils/utils' );\n\n/**\n * Model text node. Type of {@link module:engine/model/node~Node node} that contains {@link module:engine/model/text~Text#data text data}.\n *\n * **Important:** see {@link module:engine/model/node~Node} to read about restrictions using `Text` and `Node` API.\n *\n * **Note:** keep in mind that `Text` instances might indirectly got removed from model tree when model is changed.\n * This happens when {@link module:engine/model/writer~Writer model writer} is used to change model and the text node is merged with\n * another text node. Then, both text nodes are removed and a new text node is inserted into the model. Because of\n * this behavior, keeping references to `Text` is not recommended. Instead, consider creating\n * {@link module:engine/model/liveposition~LivePosition live position} placed before the text node.\n *\n * @extends module:engine/model/node~Node\n */\nexport default class Text extends Node {\n\t/** @internal */\n\tpublic _data: string;\n\n\t/**\n\t * Creates a text node.\n\t *\n\t * **Note:** Constructor of this class shouldn't be used directly in the code.\n\t * Use the {@link module:engine/model/writer~Writer#createText} method instead.\n\t *\n\t * @protected\n\t * @param {String} [data] Node's text.\n\t * @param {Object} [attrs] Node's attributes. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t */\n\tconstructor( data?: string, attrs?: NodeAttributes ) {\n\t\tsuper( attrs );\n\n\t\t/**\n\t\t * Text data contained in this text node.\n\t\t *\n\t\t * @protected\n\t\t * @type {String}\n\t\t */\n\t\tthis._data = data || '';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override get offsetSize(): number {\n\t\treturn this.data.length;\n\t}\n\n\t/**\n\t * Returns a text data contained in the node.\n\t *\n\t * @readonly\n\t * @type {String}\n\t */\n\tpublic get data(): string {\n\t\treturn this._data;\n\t}\n\n\t/**\n\t * Converts `Text` instance to plain object and returns it.\n\t *\n\t * @returns {Object} `Text` instance converted to plain object.\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.data = this.data;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a copy of this text node and returns it. Created text node has same text data and attributes as original text node.\n\t *\n\t * @internal\n\t * @protected\n\t * @returns {module:engine/model/text~Text} `Text` instance created using given plain object.\n\t */\n\tpublic override _clone(): Text {\n\t\treturn new Text( this.data, this.getAttributes() );\n\t}\n\n\t/**\n\t * Creates a `Text` instance from given plain object (i.e. parsed JSON string).\n\t *\n\t * @param {Object} json Plain object to be converted to `Text`.\n\t * @returns {module:engine/model/text~Text} `Text` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any ): Text {\n\t\treturn new Text( json.data, json.attributes );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logExtended() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( `ModelText: ${ this }, attrs: ${ convertMapToStringifiedObject( this.getAttributes() ) }` );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelText: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\ttext.is( '$text' ); // -> true\n *\t\ttext.is( 'node' ); // -> true\n *\t\ttext.is( 'model:$text' ); // -> true\n *\t\ttext.is( 'model:node' ); // -> true\n *\n *\t\ttext.is( 'view:$text' ); // -> false\n *\t\ttext.is( 'documentSelection' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * **Note:** Until version 20.0.0 this method wasn't accepting `'$text'` type. The legacy `'text'` type is still\n * accepted for backward compatibility.\n *\n * @param {String} type Type to check.\n * @returns {Boolean}\n */\nText.prototype.is = function( type: string ): boolean {\n\treturn type === '$text' || type === 'model:$text' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'text' || type === 'model:text' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype === 'node' || type === 'model:node';\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/textproxy\n */\n\nimport TypeCheckable from './typecheckable';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Node from './node';\nimport type Text from './text';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { convertMapToStringifiedObject } = require( '../dev-utils/utils' );\n\n/**\n * `TextProxy` represents a part of {@link module:engine/model/text~Text text node}.\n *\n * Since {@link module:engine/model/position~Position positions} can be placed between characters of a text node,\n * {@link module:engine/model/range~Range ranges} may contain only parts of text nodes. When {@link module:engine/model/range~Range#getItems\n * getting items}\n * contained in such range, we need to represent a part of that text node, since returning the whole text node would be incorrect.\n * `TextProxy` solves this issue.\n *\n * `TextProxy` has an API similar to {@link module:engine/model/text~Text Text} and allows to do most of the common tasks performed\n * on model nodes.\n *\n * **Note:** Some `TextProxy` instances may represent whole text node, not just a part of it.\n * See {@link module:engine/model/textproxy~TextProxy#isPartial}.\n *\n * **Note:** `TextProxy` is not an instance of {@link module:engine/model/node~Node node}. Keep this in mind when using it as a\n * parameter of methods.\n *\n * **Note:** `TextProxy` is a readonly interface. If you want to perform changes on model data represented by a `TextProxy`\n * use {@link module:engine/model/writer~Writer model writer API}.\n *\n * **Note:** `TextProxy` instances are created on the fly, basing on the current state of model. Because of this, it is\n * highly unrecommended to store references to `TextProxy` instances. `TextProxy` instances are not refreshed when\n * model changes, so they might get invalidated. Instead, consider creating {@link module:engine/model/liveposition~LivePosition live\n * position}.\n *\n * `TextProxy` instances are created by {@link module:engine/model/treewalker~TreeWalker model tree walker}. You should not need to create\n * an instance of this class by your own.\n */\nexport default class TextProxy extends TypeCheckable {\n\tpublic readonly textNode: Text;\n\tpublic readonly data: string;\n\tpublic readonly offsetInText: number;\n\n\t/**\n\t * Creates a text proxy.\n\t *\n\t * @protected\n\t * @param {module:engine/model/text~Text} textNode Text node which part is represented by this text proxy.\n\t * @param {Number} offsetInText Offset in {@link module:engine/model/textproxy~TextProxy#textNode text node} from which the text proxy\n\t * starts.\n\t * @param {Number} length Text proxy length, that is how many text node's characters, starting from `offsetInText` it represents.\n\t * @constructor\n\t */\n\tconstructor( textNode: Text, offsetInText: number, length: number ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Text node which part is represented by this text proxy.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/text~Text}\n\t\t */\n\t\tthis.textNode = textNode;\n\n\t\tif ( offsetInText < 0 || offsetInText > textNode.offsetSize ) {\n\t\t\t/**\n\t\t\t * Given `offsetInText` value is incorrect.\n\t\t\t *\n\t\t\t * @error model-textproxy-wrong-offsetintext\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-textproxy-wrong-offsetintext', this );\n\t\t}\n\n\t\tif ( length < 0 || offsetInText + length > textNode.offsetSize ) {\n\t\t\t/**\n\t\t\t * Given `length` value is incorrect.\n\t\t\t *\n\t\t\t * @error model-textproxy-wrong-length\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-textproxy-wrong-length', this );\n\t\t}\n\n\t\t/**\n\t\t * Text data represented by this text proxy.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.data = textNode.data.substring( offsetInText, offsetInText + length );\n\n\t\t/**\n\t\t * Offset in {@link module:engine/model/textproxy~TextProxy#textNode text node} from which the text proxy starts.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.offsetInText = offsetInText;\n\t}\n\n\t/**\n\t * Offset at which this text proxy starts in it's parent.\n\t *\n\t * @see module:engine/model/node~Node#startOffset\n\t * @readonly\n\t * @type {Number|null}\n\t */\n\tpublic get startOffset(): number | null {\n\t\treturn this.textNode.startOffset !== null ? this.textNode.startOffset + this.offsetInText : null;\n\t}\n\n\t/**\n\t * Offset size of this text proxy. Equal to the number of characters represented by the text proxy.\n\t *\n\t * @see module:engine/model/node~Node#offsetSize\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get offsetSize(): number {\n\t\treturn this.data.length;\n\t}\n\n\t/**\n\t * Offset at which this text proxy ends in it's parent.\n\t *\n\t * @see module:engine/model/node~Node#endOffset\n\t * @readonly\n\t * @type {Number|null}\n\t */\n\tpublic get endOffset(): number | null {\n\t\treturn this.startOffset !== null ? this.startOffset + this.offsetSize : null;\n\t}\n\n\t/**\n\t * Flag indicating whether `TextProxy` instance covers only part of the original {@link module:engine/model/text~Text text node}\n\t * (`true`) or the whole text node (`false`).\n\t *\n\t * This is `false` when text proxy starts at the very beginning of {@link module:engine/model/textproxy~TextProxy#textNode textNode}\n\t * ({@link module:engine/model/textproxy~TextProxy#offsetInText offsetInText} equals `0`) and text proxy sizes is equal to\n\t * text node size.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isPartial(): boolean {\n\t\treturn this.offsetSize !== this.textNode.offsetSize;\n\t}\n\n\t/**\n\t * Parent of this text proxy, which is same as parent of text node represented by this text proxy.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment|null}\n\t */\n\tpublic get parent(): Element | DocumentFragment | null {\n\t\treturn this.textNode.parent;\n\t}\n\n\t/**\n\t * Root of this text proxy, which is same as root of text node represented by this text proxy.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/node~Node|module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.textNode.root;\n\t}\n\n\t/**\n\t * Gets path to this text proxy.\n\t *\n\t * @see module:engine/model/node~Node#getPath\n\t * @returns {Array.<Number>}\n\t */\n\tpublic getPath(): Array<number> {\n\t\tconst path = this.textNode.getPath();\n\n\t\tif ( path.length > 0 ) {\n\t\t\tpath[ path.length - 1 ] += this.offsetInText;\n\t\t}\n\n\t\treturn path;\n\t}\n\n\t/**\n\t * Returns ancestors array of this text proxy.\n\t *\n\t * @param {Object} options Options object.\n\t * @param {Boolean} [options.includeSelf=false] When set to `true` this text proxy will be also included in parent's array.\n\t * @param {Boolean} [options.parentFirst=false] When set to `true`, array will be sorted from text proxy parent to root element,\n\t * otherwise root element will be the first item in the array.\n\t * @returns {Array} Array with ancestors.\n\t */\n\tpublic getAncestors( options: { includeSelf?: boolean; parentFirst?: boolean } = {} ): Array<TextProxy | Element | DocumentFragment> {\n\t\tconst ancestors: Array<TextProxy | Element | DocumentFragment> = [];\n\t\tlet parent: TextProxy | Element | DocumentFragment | null = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t/**\n\t * Checks if this text proxy has an attribute for given key.\n\t *\n\t * @param {String} key Key of attribute to check.\n\t * @returns {Boolean} `true` if attribute with given key is set on text proxy, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this.textNode.hasAttribute( key );\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on text proxy.\n\t *\n\t * @param {String} key Key of attribute to look for.\n\t * @returns {*} Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this.textNode.getAttribute( key );\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attributes. Attributes are returned as arrays containing two\n\t * items. First one is attribute key and second is attribute value.\n\t *\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t *\n\t * @returns {Iterable.<*>}\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this.textNode.getAttributes();\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attribute keys.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this.textNode.getAttributeKeys();\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelTextProxy: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logExtended() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( `ModelTextProxy: ${ this }, ` +\n\t// @if CK_DEBUG_ENGINE // \t\t`attrs: ${ convertMapToStringifiedObject( this.getAttributes() ) }` );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\ttextProxy.is( '$textProxy' ); // -> true\n *\t\ttextProxy.is( 'model:$textProxy' ); // -> true\n *\n *\t\ttextProxy.is( 'view:$textProxy' ); // -> false\n *\t\ttextProxy.is( 'range' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * **Note:** Until version 20.0.0 this method wasn't accepting `'$textProxy'` type. The legacy `'textProxt'` type is still\n * accepted for backward compatibility.\n *\n * @param {String} type Type to check.\n * @returns {Boolean}\n */\nTextProxy.prototype.is = function( type: string ): boolean {\n\treturn type === '$textProxy' || type === 'model:$textProxy' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'textProxy' || type === 'model:textProxy';\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/element\n */\n\nimport Node, { type NodeAttributes } from './node';\nimport NodeList from './nodelist';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type Item from './item';\n\nimport { isIterable } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { stringifyMap, convertMapToStringifiedObject, convertMapToTags } = require( '../dev-utils/utils' );\n\n/**\n * Model element. Type of {@link module:engine/model/node~Node node} that has a {@link module:engine/model/element~Element#name name} and\n * {@link module:engine/model/element~Element#getChildren child nodes}.\n *\n * **Important**: see {@link module:engine/model/node~Node} to read about restrictions using `Element` and `Node` API.\n *\n * @extends module:engine/model/node~Node\n */\nexport default class Element extends Node {\n\tpublic readonly name: string;\n\n\tprivate readonly _children: NodeList;\n\n\t/**\n\t * Creates a model element.\n\t *\n\t * **Note:** Constructor of this class shouldn't be used directly in the code.\n\t * Use the {@link module:engine/model/writer~Writer#createElement} method instead.\n\t *\n\t * @protected\n\t * @param {String} name Element's name.\n\t * @param {Object} [attrs] Element's attributes. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t * @param {module:engine/model/node~Node|Iterable.<module:engine/model/node~Node>} [children]\n\t * One or more nodes to be inserted as children of created element.\n\t */\n\tconstructor(\n\t\tname: string,\n\t\tattrs?: NodeAttributes,\n\t\tchildren?: string | Item | Iterable<string | Item>\n\t) {\n\t\tsuper( attrs );\n\n\t\t/**\n\t\t * Element name.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String} module:engine/model/element~Element#name\n\t\t */\n\t\tthis.name = name;\n\n\t\t/**\n\t\t * List of children nodes.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/nodelist~NodeList} module:engine/model/element~Element#_children\n\t\t */\n\t\tthis._children = new NodeList();\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\t}\n\n\t/**\n\t * Number of this element's children.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Sum of {@link module:engine/model/node~Node#offsetSize offset sizes} of all of this element's children.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get maxOffset(): number {\n\t\treturn this._children.maxOffset;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this element, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this.childCount === 0;\n\t}\n\n\t/**\n\t * Gets the child at the given index.\n\t *\n\t * @param {Number} index Index of child.\n\t * @returns {module:engine/model/node~Node|null} Child node.\n\t */\n\tpublic getChild( index: number ): Node | null {\n\t\treturn this._children.getNode( index );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all of this element's children.\n\t *\n\t * @returns {Iterable.<module:engine/model/node~Node>}\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns an index of the given child node. Returns `null` if given node is not a child of this element.\n\t *\n\t * @param {module:engine/model/node~Node} node Child node to look for.\n\t * @returns {Number|null} Child node's index in this element.\n\t */\n\tpublic getChildIndex( node: Node ): number | null {\n\t\treturn this._children.getNodeIndex( node );\n\t}\n\n\t/**\n\t * Returns the starting offset of given child. Starting offset is equal to the sum of\n\t * {@link module:engine/model/node~Node#offsetSize offset sizes} of all node's siblings that are before it. Returns `null` if\n\t * given node is not a child of this element.\n\t *\n\t * @param {module:engine/model/node~Node} node Child node to look for.\n\t * @returns {Number|null} Child node's starting offset.\n\t */\n\tpublic getChildStartOffset( node: Node ): number | null {\n\t\treturn this._children.getNodeStartOffset( node );\n\t}\n\n\t/**\n\t * Returns index of a node that occupies given offset. If given offset is too low, returns `0`. If given offset is\n\t * too high, returns {@link module:engine/model/element~Element#getChildIndex index after last child}.\n\t *\n\t *\t\tconst textNode = new Text( 'foo' );\n\t *\t\tconst pElement = new Element( 'p' );\n\t *\t\tconst divElement = new Element( [ textNode, pElement ] );\n\t *\t\tdivElement.offsetToIndex( -1 ); // Returns 0, because offset is too low.\n\t *\t\tdivElement.offsetToIndex( 0 ); // Returns 0, because offset 0 is taken by `textNode` which is at index 0.\n\t *\t\tdivElement.offsetToIndex( 1 ); // Returns 0, because `textNode` has `offsetSize` equal to 3, so it occupies offset 1 too.\n\t *\t\tdivElement.offsetToIndex( 2 ); // Returns 0.\n\t *\t\tdivElement.offsetToIndex( 3 ); // Returns 1.\n\t *\t\tdivElement.offsetToIndex( 4 ); // Returns 2. There are no nodes at offset 4, so last available index is returned.\n\t *\n\t * @param {Number} offset Offset to look for.\n\t * @returns {Number}\n\t */\n\tpublic offsetToIndex( offset: number ): number {\n\t\treturn this._children.offsetToIndex( offset );\n\t}\n\n\t/**\n\t * Returns a descendant node by its path relative to this element.\n\t *\n\t *\t\t// <this>a<b>c</b></this>\n\t *\t\tthis.getNodeByPath( [ 0 ] );     // -> \"a\"\n\t *\t\tthis.getNodeByPath( [ 1 ] );     // -> <b>\n\t *\t\tthis.getNodeByPath( [ 1, 0 ] );  // -> \"c\"\n\t *\n\t * @param {Array.<Number>} relativePath Path of the node to find, relative to this element.\n\t * @returns {module:engine/model/node~Node}\n\t */\n\tpublic getNodeByPath( relativePath: Array<number> ): Node {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node = this;\n\n\t\tfor ( const index of relativePath ) {\n\t\t\tnode = ( node as Element ).getChild( ( node as Element ).offsetToIndex( index ) )!;\n\t\t}\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Returns the parent element of the given name. Returns null if the element is not inside the desired parent.\n\t *\n\t * @param {String} parentName The name of the parent element to find.\n\t * @param {Object} [options] Options object.\n\t * @param {Boolean} [options.includeSelf=false] When set to `true` this node will be also included while searching.\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tpublic findAncestor( parentName: string, options: { includeSelf?: boolean } = {} ): Element | null {\n\t\tlet parent = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tif ( parent.name === parentName ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Converts `Element` instance to plain object and returns it. Takes care of converting all of this element's children.\n\t *\n\t * @returns {Object} `Element` instance converted to plain object.\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.name = this.name;\n\n\t\tif ( this._children.length > 0 ) {\n\t\t\tjson.children = [];\n\n\t\t\tfor ( const node of this._children ) {\n\t\t\t\tjson.children.push( node.toJSON() );\n\t\t\t}\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a copy of this element and returns it. Created element has the same name and attributes as the original element.\n\t * If clone is deep, the original element's children are also cloned. If not, then empty element is returned.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {Boolean} [deep=false] If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any child.\n\t */\n\tpublic override _clone( deep = false ): Element {\n\t\tconst children = deep ? Array.from( this._children ).map( node => node._clone( true ) ) : undefined;\n\n\t\treturn new Element( this.name, this.getAttributes(), children );\n\t}\n\n\t/**\n\t * {@link module:engine/model/element~Element#_insertChild Inserts} one or more nodes at the end of this element.\n\t *\n\t * @see module:engine/model/writer~Writer#append\n\t * @internal\n\t * @protected\n\t * @param {String|module:engine/model/item~Item|Iterable.<String|module:engine/model/item~Item>} nodes Nodes to be inserted.\n\t */\n\tpublic _appendChild( nodes: string | Item | Iterable<string | Item> ): void {\n\t\tthis._insertChild( this.childCount, nodes );\n\t}\n\n\t/**\n\t * Inserts one or more nodes at the given index and sets {@link module:engine/model/node~Node#parent parent} of these nodes\n\t * to this element.\n\t *\n\t * @see module:engine/model/writer~Writer#insert\n\t * @internal\n\t * @protected\n\t * @param {Number} index Index at which nodes should be inserted.\n\t * @param {String|module:engine/model/item~Item|Iterable.<String|module:engine/model/item~Item>} items Items to be inserted.\n\t */\n\tpublic _insertChild( index: number, items: string | Item | Iterable<string | Item> ): void {\n\t\tconst nodes = normalize( items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\tnode.parent = this;\n\t\t}\n\n\t\tthis._children._insertNodes( index, nodes );\n\t}\n\n\t/**\n\t * Removes one or more nodes starting at the given index and sets\n\t * {@link module:engine/model/node~Node#parent parent} of these nodes to `null`.\n\t *\n\t * @see module:engine/model/writer~Writer#remove\n\t * @protected\n\t * @param {Number} index Index of the first node to remove.\n\t * @param {Number} [howMany=1] Number of nodes to remove.\n\t * @returns {Array.<module:engine/model/node~Node>} Array containing removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tconst nodes = this._children._removeNodes( index, howMany );\n\n\t\tfor ( const node of nodes ) {\n\t\t\tnode.parent = null;\n\t\t}\n\n\t\treturn nodes;\n\t}\n\n\t/**\n\t * Creates an `Element` instance from given plain object (i.e. parsed JSON string).\n\t * Converts `Element` children to proper nodes.\n\t *\n\t * @param {Object} json Plain object to be converted to `Element`.\n\t * @returns {module:engine/model/element~Element} `Element` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any ): Element {\n\t\tlet children: Array<Node> | undefined;\n\n\t\tif ( json.children ) {\n\t\t\tchildren = [];\n\n\t\t\tfor ( const child of json.children ) {\n\t\t\t\tif ( child.name ) {\n\t\t\t\t\t// If child has name property, it is an Element.\n\t\t\t\t\tchildren.push( Element.fromJSON( child ) );\n\t\t\t\t} else {\n\t\t\t\t\t// Otherwise, it is a Text node.\n\t\t\t\t\tchildren.push( Text.fromJSON( child ) );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn new Element( json.name, json.attributes, children );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `<${ this.rootName || this.name }>`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelElement: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logExtended() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( `ModelElement: ${ this }, ${ this.childCount } children,\n\t// @if CK_DEBUG_ENGINE //\t\tattrs: ${ convertMapToStringifiedObject( this.getAttributes() ) }` );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logAll() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( '--------------------' );\n\t// @if CK_DEBUG_ENGINE //\n\t// @if CK_DEBUG_ENGINE // \tthis.logExtended();\n\t// @if CK_DEBUG_ENGINE //\tconsole.log( 'List of children:' );\n\t// @if CK_DEBUG_ENGINE //\n\t// @if CK_DEBUG_ENGINE // \tfor ( const child of this.getChildren() ) {\n\t// @if CK_DEBUG_ENGINE // \t\tchild.log();\n\t// @if CK_DEBUG_ENGINE // \t}\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // printTree( level = 0) {\n\t// @if CK_DEBUG_ENGINE // \tlet string = '';\n\n\t// @if CK_DEBUG_ENGINE // \tstring += '\\t'.repeat( level );\n\t// @if CK_DEBUG_ENGINE // \tstring += `<${ this.rootName || this.name }${ convertMapToTags( this.getAttributes() ) }>`;\n\n\t// @if CK_DEBUG_ENGINE // \tfor ( const child of this.getChildren() ) {\n\t// @if CK_DEBUG_ENGINE // \t\tstring += '\\n';\n\n\t// @if CK_DEBUG_ENGINE // \t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\tconst textAttrs = convertMapToTags( child._attrs );\n\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += '\\t'.repeat( level + 1 );\n\n\t// @if CK_DEBUG_ENGINE // \t\t\tif ( textAttrs !== '' ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\t\tstring += `<$text${ textAttrs }>` + child.data + '</$text>';\n\t// @if CK_DEBUG_ENGINE // \t\t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\t\tstring += child.data;\n\t// @if CK_DEBUG_ENGINE // \t\t\t}\n\t// @if CK_DEBUG_ENGINE // \t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += child.printTree( level + 1 );\n\t// @if CK_DEBUG_ENGINE // \t\t}\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tif ( this.childCount ) {\n\t// @if CK_DEBUG_ENGINE // \t\tstring += '\\n' + '\\t'.repeat( level );\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tstring += `</${ this.rootName || this.name }>`;\n\n\t// @if CK_DEBUG_ENGINE // \treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logTree() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\telement.is( 'element' ); // -> true\n *\t\telement.is( 'node' ); // -> true\n *\t\telement.is( 'model:element' ); // -> true\n *\t\telement.is( 'model:node' ); // -> true\n *\n *\t\telement.is( 'view:element' ); // -> false\n *\t\telement.is( 'documentSelection' ); // -> false\n *\n * Assuming that the object being checked is an element, you can also check its\n * {@link module:engine/model/element~Element#name name}:\n *\n *\t\telement.is( 'element', 'imageBlock' ); // -> true if this is an <imageBlock> element\n *\t\telement.is( 'element', 'imageBlock' ); // -> same as above\n *\t\ttext.is( 'element', 'imageBlock' ); -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'element' || type === 'model:element' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'node' || type === 'model:node';\n\t}\n\n\treturn name === this.name && ( type === 'element' || type === 'model:element' );\n};\n\n// Converts strings to Text and non-iterables to arrays.\n//\n// @param {String|module:engine/model/item~Item|Iterable.<String|module:engine/model/item~Item>}\n// @returns {Iterable.<module:engine/model/node~Node>}\nfunction normalize( nodes: string | Item | Iterable<string | Item> ): Iterable<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( node.data, node.getAttributes() );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/treewalker\n */\n\nimport Element from './element';\nimport {\n\tdefault as Position,\n\tgetTextNodeAtPosition,\n\tgetNodeAfterPosition,\n\tgetNodeBeforePosition\n} from './position';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type DocumentFragment from './documentfragment';\nimport type Item from './item';\nimport type Range from './range';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Position iterator class. It allows to iterate forward and backward over the document.\n */\nexport default class TreeWalker implements Iterable<TreeWalkerValue> {\n\tpublic readonly direction: TreeWalkerDirection;\n\tpublic readonly boundaries: Range | null;\n\tpublic position: Position;\n\tpublic readonly singleCharacters: boolean;\n\tpublic readonly shallow: boolean;\n\tpublic readonly ignoreElementEnd: boolean;\n\n\tprivate _boundaryStartParent: Element | DocumentFragment | null;\n\tprivate _boundaryEndParent: Element | DocumentFragment | null;\n\tprivate _visitedParent: Element | DocumentFragment;\n\n\t/**\n\t * Creates a range iterator. All parameters are optional, but you have to specify either `boundaries` or `startPosition`.\n\t *\n\t * @constructor\n\t * @param {Object} [options={}] Object with configuration.\n\t * @param {'forward'|'backward'} [options.direction='forward'] Walking direction.\n\t * @param {module:engine/model/range~Range|null} [options.boundaries=null] Range to define boundaries of the iterator.\n\t * @param {module:engine/model/position~Position} [options.startPosition] Starting position.\n\t * @param {Boolean} [options.singleCharacters=false] Flag indicating whether all consecutive characters with the same attributes\n\t * should be returned one by one as multiple {@link module:engine/model/textproxy~TextProxy} (`true`) objects or as one\n\t * {@link module:engine/model/textproxy~TextProxy} (`false`).\n\t * @param {Boolean} [options.shallow=false] Flag indicating whether iterator should enter elements or not. If the\n\t * iterator is shallow child nodes of any iterated node will not be returned along with `elementEnd` tag.\n\t * @param {Boolean} [options.ignoreElementEnd=false] Flag indicating whether iterator should ignore `elementEnd`\n\t * tags. If the option is true walker will not return a parent node of start position. If this option is `true`\n\t * each {@link module:engine/model/element~Element} will be returned once, while if the option is `false` they might be returned\n\t * twice: for `'elementStart'` and `'elementEnd'`.\n\t */\n\tconstructor(\n\t\toptions: {\n\t\t\tdirection?: TreeWalkerDirection;\n\t\t\tboundaries?: Range | null;\n\t\t\tstartPosition?: Position;\n\t\t\tsingleCharacters?: boolean;\n\t\t\tshallow?: boolean;\n\t\t\tignoreElementEnd?: boolean;\n\t\t} = {}\n\t) {\n\t\tif ( !options.boundaries && !options.startPosition ) {\n\t\t\t/**\n\t\t\t * Neither boundaries nor starting position of a `TreeWalker` have been defined.\n\t\t\t *\n\t\t\t * @error model-tree-walker-no-start-position\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-tree-walker-no-start-position',\n\t\t\t\tnull\n\t\t\t);\n\t\t}\n\n\t\tconst direction = options.direction || 'forward';\n\n\t\tif ( direction != 'forward' && direction != 'backward' ) {\n\t\t\t/**\n\t\t\t * Only `backward` and `forward` direction allowed.\n\t\t\t *\n\t\t\t * @error model-tree-walker-unknown-direction\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-tree-walker-unknown-direction', options, { direction } );\n\t\t}\n\n\t\t/**\n\t\t * Walking direction. Defaults `'forward'`.\n\t\t *\n\t\t * @readonly\n\t\t * @member {'backward'|'forward'} module:engine/model/treewalker~TreeWalker#direction\n\t\t */\n\t\tthis.direction = direction;\n\n\t\t/**\n\t\t * Iterator boundaries.\n\t\t *\n\t\t * When the iterator is walking `'forward'` on the end of boundary or is walking `'backward'`\n\t\t * on the start of boundary, then `{ done: true }` is returned.\n\t\t *\n\t\t * If boundaries are not defined they are set before first and after last child of the root node.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/range~Range|null} module:engine/model/treewalker~TreeWalker#boundaries\n\t\t */\n\t\tthis.boundaries = options.boundaries || null;\n\n\t\t/**\n\t\t * Iterator position. This is always static position, even if the initial position was a\n\t\t * {@link module:engine/model/liveposition~LivePosition live position}. If start position is not defined then position depends\n\t\t * on {@link #direction}. If direction is `'forward'` position starts form the beginning, when direction\n\t\t * is `'backward'` position starts from the end.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/position~Position} module:engine/model/treewalker~TreeWalker#position\n\t\t */\n\t\tif ( options.startPosition ) {\n\t\t\tthis.position = options.startPosition.clone();\n\t\t} else {\n\t\t\tthis.position = Position._createAt( this.boundaries![ this.direction == 'backward' ? 'end' : 'start' ] );\n\t\t}\n\n\t\t// Reset position stickiness in case it was set to other value, as the stickiness is kept after cloning.\n\t\tthis.position.stickiness = 'toNone';\n\n\t\t/**\n\t\t * Flag indicating whether all consecutive characters with the same attributes should be\n\t\t * returned as one {@link module:engine/model/textproxy~TextProxy} (`true`) or one by one (`false`).\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} module:engine/model/treewalker~TreeWalker#singleCharacters\n\t\t */\n\t\tthis.singleCharacters = !!options.singleCharacters;\n\n\t\t/**\n\t\t * Flag indicating whether iterator should enter elements or not. If the iterator is shallow child nodes of any\n\t\t * iterated node will not be returned along with `elementEnd` tag.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} module:engine/model/treewalker~TreeWalker#shallow\n\t\t */\n\t\tthis.shallow = !!options.shallow;\n\n\t\t/**\n\t\t * Flag indicating whether iterator should ignore `elementEnd` tags. If the option is true walker will not\n\t\t * return a parent node of the start position. If this option is `true` each {@link module:engine/model/element~Element} will\n\t\t * be returned once, while if the option is `false` they might be returned twice:\n\t\t * for `'elementStart'` and `'elementEnd'`.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} module:engine/model/treewalker~TreeWalker#ignoreElementEnd\n\t\t */\n\t\tthis.ignoreElementEnd = !!options.ignoreElementEnd;\n\n\t\t/**\n\t\t * Start boundary cached for optimization purposes.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/element~Element} module:engine/model/treewalker~TreeWalker#_boundaryStartParent\n\t\t */\n\t\tthis._boundaryStartParent = this.boundaries ? this.boundaries.start.parent : null;\n\n\t\t/**\n\t\t * End boundary cached for optimization purposes.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/element~Element} module:engine/model/treewalker~TreeWalker#_boundaryEndParent\n\t\t */\n\t\tthis._boundaryEndParent = this.boundaries ? this.boundaries.end.parent : null;\n\n\t\t/**\n\t\t * Parent of the most recently visited node. Cached for optimization purposes.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment}\n\t\t * module:engine/model/treewalker~TreeWalker#_visitedParent\n\t\t */\n\t\tthis._visitedParent = this.position.parent;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * @returns {Iterable.<module:engine/model/treewalker~TreeWalkerValue>}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Moves {@link #position} in the {@link #direction} skipping values as long as the callback function returns `true`.\n\t *\n\t * For example:\n\t *\n\t * \t\twalker.skip( value => value.type == 'text' ); // <paragraph>[]foo</paragraph> -> <paragraph>foo[]</paragraph>\n\t * \t\twalker.skip( () => true ); // Move the position to the end: <paragraph>[]foo</paragraph> -> <paragraph>foo</paragraph>[]\n\t * \t\twalker.skip( () => false ); // Do not move the position.\n\t *\n\t * @param {Function} skip Callback function. Gets {@link module:engine/model/treewalker~TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t */\n\tpublic skip( skip: ( value: TreeWalkerValue ) => boolean ): void {\n\t\tlet done, value, prevPosition, prevVisitedParent;\n\n\t\tdo {\n\t\t\tprevPosition = this.position;\n\t\t\tprevVisitedParent = this._visitedParent;\n\n\t\t\t( { done, value } = this.next() );\n\t\t} while ( !done && skip( value ) );\n\n\t\tif ( !done ) {\n\t\t\tthis.position = prevPosition;\n\t\t\tthis._visitedParent = prevVisitedParent;\n\t\t}\n\t}\n\n\t/**\n\t * Gets the next tree walker's value.\n\t *\n\t * @returns {IteratorResult} Next tree walker's value.\n\t */\n\tpublic next(): IteratorResult<TreeWalkerValue> {\n\t\tif ( this.direction == 'forward' ) {\n\t\t\treturn this._next();\n\t\t} else {\n\t\t\treturn this._previous();\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step forward in model. Moves the {@link #position} to the next position and returns the encountered value.\n\t *\n\t * @private\n\t * @returns {Object}\n\t * @returns {Boolean} return.done True if iterator is done.\n\t * @returns {IteratorResult} return.value Information about taken step.\n\t */\n\tprivate _next(): IteratorResult<TreeWalkerValue> {\n\t\tconst previousPosition = this.position;\n\t\tconst position = this.position.clone();\n\t\tconst parent = this._visitedParent;\n\n\t\t// We are at the end of the root.\n\t\tif ( parent.parent === null && position.offset === parent.maxOffset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent === this._boundaryEndParent && position.offset == this.boundaries!.end.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just after the current position.\n\t\t// Use a highly optimized version instead of checking the text node first and then getting the node after. See #6582.\n\t\tconst textNodeAtPosition = getTextNodeAtPosition( position, parent );\n\t\tconst node = textNodeAtPosition ? textNodeAtPosition : getNodeAfterPosition( position, parent, textNodeAtPosition );\n\n\t\tif ( node instanceof Element ) {\n\t\t\tif ( !this.shallow ) {\n\t\t\t\t// Manual operations on path internals for optimization purposes. Here and in the rest of the method.\n\t\t\t\tposition.path.push( 0 );\n\t\t\t\tthis._visitedParent = node;\n\t\t\t} else {\n\t\t\t\tposition.offset++;\n\t\t\t}\n\n\t\t\tthis.position = position;\n\n\t\t\treturn formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t} else if ( node instanceof Text ) {\n\t\t\tlet charactersCount;\n\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tcharactersCount = 1;\n\t\t\t} else {\n\t\t\t\tlet offset = node.endOffset!;\n\n\t\t\t\tif ( this._boundaryEndParent == parent && this.boundaries!.end.offset < offset ) {\n\t\t\t\t\toffset = this.boundaries!.end.offset;\n\t\t\t\t}\n\n\t\t\t\tcharactersCount = offset - position.offset;\n\t\t\t}\n\n\t\t\tconst offsetInTextNode = position.offset - node.startOffset!;\n\t\t\tconst item = new TextProxy( node, offsetInTextNode, charactersCount );\n\n\t\t\tposition.offset += charactersCount;\n\t\t\tthis.position = position;\n\n\t\t\treturn formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the end of current `parent`.\n\t\t\tposition.path.pop();\n\t\t\tposition.offset++;\n\t\t\tthis.position = position;\n\t\t\tthis._visitedParent = parent.parent!;\n\n\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\treturn this._next();\n\t\t\t} else {\n\t\t\t\treturn formatReturnValue( 'elementEnd', parent as Element, previousPosition, position );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step backward in model. Moves the {@link #position} to the previous position and returns the encountered value.\n\t *\n\t * @private\n\t * @returns {Object}\n\t * @returns {Boolean} return.done True if iterator is done.\n\t * @returns {IteratorResulte} return.value Information about taken step.\n\t */\n\tprivate _previous(): IteratorResult<TreeWalkerValue> {\n\t\tconst previousPosition = this.position;\n\t\tconst position = this.position.clone();\n\t\tconst parent = this._visitedParent;\n\n\t\t// We are at the beginning of the root.\n\t\tif ( parent.parent === null && position.offset === 0 ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent == this._boundaryStartParent && position.offset == this.boundaries!.start.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just before the current position.\n\t\t// Use a highly optimized version instead of checking the text node first and then getting the node before. See #6582.\n\t\tconst positionParent = position.parent;\n\t\tconst textNodeAtPosition = getTextNodeAtPosition( position, positionParent );\n\t\tconst node = textNodeAtPosition ? textNodeAtPosition : getNodeBeforePosition( position, positionParent, textNodeAtPosition );\n\n\t\tif ( node instanceof Element ) {\n\t\t\tposition.offset--;\n\n\t\t\tif ( !this.shallow ) {\n\t\t\t\tposition.path.push( node.maxOffset );\n\t\t\t\tthis.position = position;\n\t\t\t\tthis._visitedParent = node;\n\n\t\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\t\treturn this._previous();\n\t\t\t\t} else {\n\t\t\t\t\treturn formatReturnValue( 'elementEnd', node, previousPosition, position );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tthis.position = position;\n\n\t\t\t\treturn formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t\t}\n\t\t} else if ( node instanceof Text ) {\n\t\t\tlet charactersCount;\n\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tcharactersCount = 1;\n\t\t\t} else {\n\t\t\t\tlet offset = node.startOffset!;\n\n\t\t\t\tif ( this._boundaryStartParent == parent && this.boundaries!.start.offset > offset ) {\n\t\t\t\t\toffset = this.boundaries!.start.offset;\n\t\t\t\t}\n\n\t\t\t\tcharactersCount = position.offset - offset;\n\t\t\t}\n\n\t\t\tconst offsetInTextNode = position.offset - node.startOffset!;\n\t\t\tconst item = new TextProxy( node, offsetInTextNode - charactersCount, charactersCount );\n\n\t\t\tposition.offset -= charactersCount;\n\t\t\tthis.position = position;\n\n\t\t\treturn formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the beginning of current `parent`.\n\t\t\tposition.path.pop();\n\t\t\tthis.position = position;\n\t\t\tthis._visitedParent = parent.parent!;\n\n\t\t\treturn formatReturnValue( 'elementStart', parent as Element, previousPosition, position, 1 );\n\t\t}\n\t}\n}\n\nfunction formatReturnValue(\n\ttype: TreeWalkerValueType,\n\titem: Item,\n\tpreviousPosition: Position,\n\tnextPosition: Position,\n\tlength?: number\n): IteratorYieldResult<TreeWalkerValue> {\n\treturn {\n\t\tdone: false,\n\t\tvalue: {\n\t\t\ttype,\n\t\t\titem,\n\t\t\tpreviousPosition,\n\t\t\tnextPosition,\n\t\t\tlength\n\t\t}\n\t};\n}\n\n/**\n * Type of the step made by {@link module:engine/model/treewalker~TreeWalker}.\n * Possible values: `'elementStart'` if walker is at the beginning of a node, `'elementEnd'` if walker is at the end of node,\n * or `'text'` if walker traversed over text.\n *\n * @typedef {'elementStart'|'elementEnd'|'text'} module:engine/model/treewalker~TreeWalkerValueType\n */\nexport type TreeWalkerValueType = 'elementStart' | 'elementEnd' | 'text';\n\n/**\n * Object returned by {@link module:engine/model/treewalker~TreeWalker} when traversing tree model.\n *\n * @typedef {Object} module:engine/model/treewalker~TreeWalkerValue\n * @property {module:engine/model/treewalker~TreeWalkerValueType} type\n * @property {module:engine/model/item~Item} item Item between old and new positions of {@link module:engine/model/treewalker~TreeWalker}.\n * @property {module:engine/model/position~Position} previousPosition Previous position of the iterator.\n * * Forward iteration: For `'elementEnd'` it is the last position inside the element. For all other types it is the\n * position before the item.\n * * Backward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n * the position after item.\n * @property {module:engine/model/position~Position} nextPosition Next position of the iterator.\n * * Forward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n * the position after the item.\n * * Backward iteration: For `'elementEnd'` it is last position inside element. For all other types it is the position\n * before the item.\n * @property {Number} [length] Length of the item. For `'elementStart'` it is 1. For `'text'` it is\n * the length of the text. For `'elementEnd'` it is `undefined`.\n */\nexport interface TreeWalkerValue {\n\ttype: TreeWalkerValueType;\n\titem: Item;\n\tpreviousPosition: Position;\n\tnextPosition: Position;\n\tlength?: number;\n}\n\n/**\n * Tree walking directions.\n *\n * @typedef {'forward'|'backward'} module:engine/model/treewalker~TreeWalkerDirection\n */\nexport type TreeWalkerDirection = 'forward' | 'backward';\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/position\n */\n\nimport TypeCheckable from './typecheckable';\nimport TreeWalker, { type TreeWalkerValue } from './treewalker';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type InsertOperation from './operation/insertoperation';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Node from './node';\nimport type Operation from './operation/operation';\nimport type SplitOperation from './operation/splitoperation';\nimport type Text from './text';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\n/**\n * Represents a position in the model tree.\n *\n * A position is represented by its {@link module:engine/model/position~Position#root} and\n * a {@link module:engine/model/position~Position#path} in that root.\n *\n * You can create position instances via its constructor or the `createPosition*()` factory methods of\n * {@link module:engine/model/model~Model} and {@link module:engine/model/writer~Writer}.\n *\n * **Note:** Position is based on offsets, not indexes. This means that a position between two text nodes\n * `foo` and `bar` has offset `3`, not `1`. See {@link module:engine/model/position~Position#path} for more information.\n *\n * Since a position in the model is represented by a {@link module:engine/model/position~Position#root position root} and\n * {@link module:engine/model/position~Position#path position path} it is possible to create positions placed in non-existing places.\n * This requirement is important for operational transformation algorithms.\n *\n * Also, {@link module:engine/model/operation/operation~Operation operations}\n * kept in the {@link module:engine/model/document~Document#history document history}\n * are storing positions (and ranges) which were correct when those operations were applied, but may not be correct\n * after the document has changed.\n *\n * When changes are applied to the model, it may also happen that {@link module:engine/model/position~Position#parent position parent}\n * will change even if position path has not changed. Keep in mind, that if a position leads to non-existing element,\n * {@link module:engine/model/position~Position#parent} and some other properties and methods will throw errors.\n *\n * In most cases, position with wrong path is caused by an error in code, but it is sometimes needed, as described above.\n */\nexport default class Position extends TypeCheckable {\n\tpublic readonly root: Element | DocumentFragment;\n\tpublic path: Array<number>;\n\tpublic stickiness: PositionStickiness;\n\n\t/**\n\t * Creates a position.\n\t *\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} root Root of the position.\n\t * @param {Array.<Number>} path Position path. See {@link module:engine/model/position~Position#path}.\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone'] Position stickiness.\n\t * See {@link module:engine/model/position~PositionStickiness}.\n\t */\n\tconstructor(\n\t\troot: Element | DocumentFragment,\n\t\tpath: Array<number>,\n\t\tstickiness: PositionStickiness = 'toNone'\n\t) {\n\t\tsuper();\n\n\t\tif ( !root.is( 'element' ) && !root.is( 'documentFragment' ) ) {\n\t\t\t/**\n\t\t\t * Position root is invalid.\n\t\t\t *\n\t\t\t * Positions can only be anchored in elements or document fragments.\n\t\t\t *\n\t\t\t * @error model-position-root-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-root-invalid',\n\t\t\t\troot\n\t\t\t);\n\t\t}\n\n\t\tif ( !( path instanceof Array ) || path.length === 0 ) {\n\t\t\t/**\n\t\t\t * Position path must be an array with at least one item.\n\t\t\t *\n\t\t\t * @error model-position-path-incorrect-format\n\t\t\t * @param path\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-path-incorrect-format',\n\t\t\t\troot,\n\t\t\t\t{ path }\n\t\t\t);\n\t\t}\n\n\t\t// Normalize the root and path when element (not root) is passed.\n\t\tif ( root.is( 'rootElement' ) ) {\n\t\t\tpath = path.slice();\n\t\t} else {\n\t\t\tpath = [ ...root.getPath(), ...path ];\n\t\t\troot = root.root as any;\n\t\t}\n\n\t\t/**\n\t\t * Root of the position path.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment}\n\t\t * module:engine/model/position~Position#root\n\t\t */\n\t\tthis.root = root;\n\n\t\t/**\n\t\t * Position of the node in the tree. **Path contains offsets, not indexes.**\n\t\t *\n\t\t * Position can be placed before, after or in a {@link module:engine/model/node~Node node} if that node has\n\t\t * {@link module:engine/model/node~Node#offsetSize} greater than `1`. Items in position path are\n\t\t * {@link module:engine/model/node~Node#startOffset starting offsets} of position ancestors, starting from direct root children,\n\t\t * down to the position offset in it's parent.\n\t\t *\n\t\t *\t\t ROOT\n\t\t *\t\t  |- P            before: [ 0 ]         after: [ 1 ]\n\t\t *\t\t  |- UL           before: [ 1 ]         after: [ 2 ]\n\t\t *\t\t     |- LI        before: [ 1, 0 ]      after: [ 1, 1 ]\n\t\t *\t\t     |  |- foo    before: [ 1, 0, 0 ]   after: [ 1, 0, 3 ]\n\t\t *\t\t     |- LI        before: [ 1, 1 ]      after: [ 1, 2 ]\n\t\t *\t\t        |- bar    before: [ 1, 1, 0 ]   after: [ 1, 1, 3 ]\n\t\t *\n\t\t * `foo` and `bar` are representing {@link module:engine/model/text~Text text nodes}. Since text nodes has offset size\n\t\t * greater than `1` you can place position offset between their start and end:\n\t\t *\n\t\t *\t\t ROOT\n\t\t *\t\t  |- P\n\t\t *\t\t  |- UL\n\t\t *\t\t     |- LI\n\t\t *\t\t     |  |- f^o|o  ^ has path: [ 1, 0, 1 ]   | has path: [ 1, 0, 2 ]\n\t\t *\t\t     |- LI\n\t\t *\t\t        |- b^a|r  ^ has path: [ 1, 1, 1 ]   | has path: [ 1, 1, 2 ]\n\t\t *\n\t\t * @readonly\n\t\t * @member {Array.<Number>} module:engine/model/position~Position#path\n\t\t */\n\t\tthis.path = path;\n\n\t\t/**\n\t\t * Position stickiness. See {@link module:engine/model/position~PositionStickiness}.\n\t\t *\n\t\t * @member {module:engine/model/position~PositionStickiness} module:engine/model/position~Position#stickiness\n\t\t */\n\t\tthis.stickiness = stickiness;\n\t}\n\n\t/**\n\t * Offset at which this position is located in its {@link module:engine/model/position~Position#parent parent}. It is equal\n\t * to the last item in position {@link module:engine/model/position~Position#path path}.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get offset(): number {\n\t\treturn this.path[ this.path.length - 1 ];\n\t}\n\n\tpublic set offset( newOffset: number ) {\n\t\tthis.path[ this.path.length - 1 ] = newOffset;\n\t}\n\n\t/**\n\t * Parent element of this position.\n\t *\n\t * Keep in mind that `parent` value is calculated when the property is accessed.\n\t * If {@link module:engine/model/position~Position#path position path}\n\t * leads to a non-existing element, `parent` property will throw error.\n\t *\n\t * Also it is a good idea to cache `parent` property if it is used frequently in an algorithm (i.e. in a long loop).\n\t *\n\t * @readonly\n\t * @type {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic get parent(): Element | DocumentFragment {\n\t\tlet parent: any = this.root;\n\n\t\tfor ( let i = 0; i < this.path.length - 1; i++ ) {\n\t\t\tparent = parent.getChild( parent.offsetToIndex( this.path[ i ] ) );\n\n\t\t\tif ( !parent ) {\n\t\t\t\t/**\n\t\t\t\t * The position's path is incorrect. This means that a position does not point to\n\t\t\t\t * a correct place in the tree and hence, some of its methods and getters cannot work correctly.\n\t\t\t\t *\n\t\t\t\t * **Note**: Unlike DOM and view positions, in the model, the\n\t\t\t\t * {@link module:engine/model/position~Position#parent position's parent} is always an element or a document fragment.\n\t\t\t\t * The last offset in the {@link module:engine/model/position~Position#path position's path} is the point in this element\n\t\t\t\t * where this position points.\n\t\t\t\t *\n\t\t\t\t * Read more about model positions and offsets in\n\t\t\t\t * the {@glink framework/guides/architecture/editing-engine#indexes-and-offsets Editing engine architecture guide}.\n\t\t\t\t *\n\t\t\t\t * @error model-position-path-incorrect\n\t\t\t\t * @param {module:engine/model/position~Position} position The incorrect position.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-position-path-incorrect', this, { position: this } );\n\t\t\t}\n\t\t}\n\n\t\tif ( parent.is( '$text' ) ) {\n\t\t\tthrow new CKEditorError( 'model-position-path-incorrect', this, { position: this } );\n\t\t}\n\n\t\treturn parent;\n\t}\n\n\t/**\n\t * Position {@link module:engine/model/position~Position#offset offset} converted to an index in position's parent node. It is\n\t * equal to the {@link module:engine/model/node~Node#index index} of a node after this position. If position is placed\n\t * in text node, position index is equal to the index of that text node.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get index(): number {\n\t\treturn this.parent.offsetToIndex( this.offset );\n\t}\n\n\t/**\n\t * Returns {@link module:engine/model/text~Text text node} instance in which this position is placed or `null` if this\n\t * position is not in a text node.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/text~Text|null}\n\t */\n\tpublic get textNode(): Text | null {\n\t\treturn getTextNodeAtPosition( this, this.parent );\n\t}\n\n\t/**\n\t * Node directly after this position or `null` if this position is in text node.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/node~Node|null}\n\t */\n\tpublic get nodeAfter(): Node | null {\n\t\t// Cache the parent and reuse for performance reasons. See #6579 and #6582.\n\t\tconst parent = this.parent;\n\n\t\treturn getNodeAfterPosition( this, parent, getTextNodeAtPosition( this, parent ) );\n\t}\n\n\t/**\n\t * Node directly before this position or `null` if this position is in text node.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/node~Node|null}\n\t */\n\tpublic get nodeBefore(): Node | null {\n\t\t// Cache the parent and reuse for performance reasons. See #6579 and #6582.\n\t\tconst parent = this.parent;\n\n\t\treturn getNodeBeforePosition( this, parent, getTextNodeAtPosition( this, parent ) );\n\t}\n\n\t/**\n\t * Is `true` if position is at the beginning of its {@link module:engine/model/position~Position#parent parent}, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isAtStart(): boolean {\n\t\treturn this.offset === 0;\n\t}\n\n\t/**\n\t * Is `true` if position is at the end of its {@link module:engine/model/position~Position#parent parent}, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isAtEnd(): boolean {\n\t\treturn this.offset == this.parent.maxOffset;\n\t}\n\n\t/**\n\t * Checks whether this position is before or after given position.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param {module:engine/model/position~Position} otherPosition Position to compare with.\n\t * @returns {module:engine/model/position~PositionRelation}\n\t */\n\tpublic compareWith( otherPosition: Position ): PositionRelation {\n\t\tif ( this.root != otherPosition.root ) {\n\t\t\treturn 'different';\n\t\t}\n\n\t\tconst result = compareArrays( this.path, otherPosition.path );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'same':\n\t\t\t\treturn 'same';\n\n\t\t\tcase 'prefix':\n\t\t\t\treturn 'before';\n\n\t\t\tcase 'extension':\n\t\t\t\treturn 'after';\n\n\t\t\tdefault:\n\t\t\t\treturn this.path[ result ] < otherPosition.path[ result ] ? 'before' : 'after';\n\t\t}\n\t}\n\n\t/**\n\t * Gets the farthest position which matches the callback using\n\t * {@link module:engine/model/treewalker~TreeWalker TreeWalker}.\n\t *\n\t * For example:\n\t *\n\t * \t\tgetLastMatchingPosition( value => value.type == 'text' );\n\t * \t\t// <paragraph>[]foo</paragraph> -> <paragraph>foo[]</paragraph>\n\t *\n\t * \t\tgetLastMatchingPosition( value => value.type == 'text', { direction: 'backward' } );\n\t * \t\t// <paragraph>foo[]</paragraph> -> <paragraph>[]foo</paragraph>\n\t *\n\t * \t\tgetLastMatchingPosition( value => false );\n\t * \t\t// Do not move the position.\n\t *\n\t * @param {Function} skip Callback function. Gets {@link module:engine/model/treewalker~TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t * @param {Object} options Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t *\n\t * @returns {module:engine/model/position~Position} The position after the last item which matches the `skip` callback test.\n\t */\n\tpublic getLastMatchingPosition(\n\t\tskip: ( value: TreeWalkerValue ) => boolean,\n\t\toptions: ConstructorParameters<typeof TreeWalker>[ 0 ] = {}\n\t): Position {\n\t\toptions.startPosition = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\t\ttreeWalker.skip( skip );\n\n\t\treturn treeWalker.position;\n\t}\n\n\t/**\n\t * Returns a path to this position's parent. Parent path is equal to position {@link module:engine/model/position~Position#path path}\n\t * but without the last item.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @returns {Array.<Number>} Path to the parent.\n\t */\n\tpublic getParentPath(): Array<number> {\n\t\treturn this.path.slice( 0, -1 );\n\t}\n\n\t/**\n\t * Returns ancestors array of this position, that is this position's parent and its ancestors.\n\t *\n\t * @returns {Array.<module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment>} Array with ancestors.\n\t */\n\tpublic getAncestors(): Array<Element | DocumentFragment> {\n\t\tconst parent = this.parent;\n\n\t\tif ( parent.is( 'documentFragment' ) ) {\n\t\t\treturn [ parent ];\n\t\t} else {\n\t\t\treturn parent.getAncestors( { includeSelf: true } ) as any;\n\t\t}\n\t}\n\n\t/**\n\t * Returns the parent element of the given name. Returns null if the position is not inside the desired parent.\n\t *\n\t * @param {String} parentName The name of the parent element to find.\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tpublic findAncestor( parentName: string ): Element | null {\n\t\tconst parent = this.parent;\n\n\t\tif ( parent.is( 'element' ) ) {\n\t\t\treturn parent.findAncestor( parentName, { includeSelf: true } );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the slice of two position {@link #path paths} which is identical. The {@link #root roots}\n\t * of these two paths must be identical.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param {module:engine/model/position~Position} position The second position.\n\t * @returns {Array.<Number>} The common path.\n\t */\n\tpublic getCommonPath( position: Position ): Array<number> {\n\t\tif ( this.root != position.root ) {\n\t\t\treturn [];\n\t\t}\n\n\t\t// We find on which tree-level start and end have the lowest common ancestor\n\t\tconst cmp = compareArrays( this.path, position.path );\n\t\t// If comparison returned string it means that arrays are same.\n\t\tconst diffAt = ( typeof cmp == 'string' ) ? Math.min( this.path.length, position.path.length ) : cmp;\n\n\t\treturn this.path.slice( 0, diffAt );\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/model/element~Element} or {@link module:engine/model/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both positions. The {@link #root roots} of these two positions must be identical.\n\t *\n\t * @param {module:engine/model/position~Position} position The second position.\n\t * @returns {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment|null}\n\t */\n\tpublic getCommonAncestor( position: Position ): Element | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors();\n\t\tconst ancestorsB = position.getAncestors();\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ];\n\t}\n\n\t/**\n\t * Returns a new instance of `Position`, that has same {@link #parent parent} but it's offset\n\t * is shifted by `shift` value (can be a negative value).\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param {Number} shift Offset shift. Can be a negative value.\n\t * @returns {module:engine/model/position~Position} Shifted position.\n\t */\n\tpublic getShiftedBy( shift: number ): Position {\n\t\tconst shifted = this.clone();\n\n\t\tconst offset = shifted.offset + shift;\n\t\tshifted.offset = offset < 0 ? 0 : offset;\n\n\t\treturn shifted;\n\t}\n\n\t/**\n\t * Checks whether this position is after given position.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @see module:engine/model/position~Position#isBefore\n\t * @param {module:engine/model/position~Position} otherPosition Position to compare with.\n\t * @returns {Boolean} True if this position is after given position.\n\t */\n\tpublic isAfter( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'after';\n\t}\n\n\t/**\n\t * Checks whether this position is before given position.\n\t *\n\t * **Note:** watch out when using negation of the value returned by this method, because the negation will also\n\t * be `true` if positions are in different roots and you might not expect this. You should probably use\n\t * `a.isAfter( b ) || a.isEqual( b )` or `!a.isBefore( p ) && a.root == b.root` in most scenarios. If your\n\t * condition uses multiple `isAfter` and `isBefore` checks, build them so they do not use negated values, i.e.:\n\t *\n\t *\t\tif ( a.isBefore( b ) && c.isAfter( d ) ) {\n\t *\t\t\t// do A.\n\t *\t\t} else {\n\t *\t\t\t// do B.\n\t *\t\t}\n\t *\n\t * or, if you have only one if-branch:\n\t *\n\t *\t\tif ( !( a.isBefore( b ) && c.isAfter( d ) ) {\n\t *\t\t\t// do B.\n\t *\t\t}\n\t *\n\t * rather than:\n\t *\n\t *\t\tif ( !a.isBefore( b ) || && !c.isAfter( d ) ) {\n\t *\t\t\t// do B.\n\t *\t\t} else {\n\t *\t\t\t// do A.\n\t *\t\t}\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param {module:engine/model/position~Position} otherPosition Position to compare with.\n\t * @returns {Boolean} True if this position is before given position.\n\t */\n\tpublic isBefore( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'before';\n\t}\n\n\t/**\n\t * Checks whether this position is equal to given position.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param {module:engine/model/position~Position} otherPosition Position to compare with.\n\t * @returns {Boolean} True if positions are same.\n\t */\n\tpublic isEqual( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'same';\n\t}\n\n\t/**\n\t * Checks whether this position is touching given position. Positions touch when there are no text nodes\n\t * or empty nodes in a range between them. Technically, those positions are not equal but in many cases\n\t * they are very similar or even indistinguishable.\n\t *\n\t * @param {module:engine/model/position~Position} otherPosition Position to compare with.\n\t * @returns {Boolean} True if positions touch.\n\t */\n\tpublic isTouching( otherPosition: Position ): boolean {\n\t\tif ( this.root !== otherPosition.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst commonLevel = Math.min( this.path.length, otherPosition.path.length );\n\n\t\tfor ( let level = 0; level < commonLevel; level++ ) {\n\t\t\tconst diff = this.path[ level ] - otherPosition.path[ level ];\n\n\t\t\t// Positions are spread by a node, so they are not touching.\n\t\t\tif ( diff < -1 || diff > 1 ) {\n\t\t\t\treturn false;\n\t\t\t} else if ( diff === 1 ) {\n\t\t\t\t// `otherPosition` is on the left.\n\t\t\t\t// `this` is on the right.\n\t\t\t\treturn checkTouchingBranch( otherPosition, this, level );\n\t\t\t} else if ( diff === -1 ) {\n\t\t\t\t// `this` is on the left.\n\t\t\t\t// `otherPosition` is on the right.\n\t\t\t\treturn checkTouchingBranch( this, otherPosition, level );\n\t\t\t}\n\t\t\t// `diff === 0`.\n\t\t\t// Positions are inside the same element on this level, compare deeper.\n\t\t}\n\n\t\t// If we ended up here, it means that positions paths have the same beginning.\n\t\t// If the paths have the same length, then it means that they are identical, so the positions are same.\n\t\tif ( this.path.length === otherPosition.path.length ) {\n\t\t\treturn true;\n\t\t}\n\t\t// If positions have different length of paths, then the common part is the same.\n\t\t// In this case, the \"shorter\" position is on the left, the \"longer\" position is on the right.\n\t\t//\n\t\t// If the positions are touching, the \"longer\" position must have only zeroes. For example:\n\t\t// [ 1, 2 ] vs [ 1, 2, 0 ]\n\t\t// [ 1, 2 ] vs [ 1, 2, 0, 0, 0 ]\n\t\telse if ( this.path.length > otherPosition.path.length ) {\n\t\t\treturn checkOnlyZeroes( this.path, commonLevel );\n\t\t} else {\n\t\t\treturn checkOnlyZeroes( otherPosition.path, commonLevel );\n\t\t}\n\t}\n\n\t/**\n\t * Checks if two positions are in the same parent.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param {module:engine/model/position~Position} position Position to compare with.\n\t * @returns {Boolean} `true` if positions have the same parent, `false` otherwise.\n\t */\n\tpublic hasSameParentAs( position: Position ): boolean {\n\t\tif ( this.root !== position.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst thisParentPath = this.getParentPath();\n\t\tconst posParentPath = position.getParentPath();\n\n\t\treturn compareArrays( thisParentPath, posParentPath ) == 'same';\n\t}\n\n\t/**\n\t * Returns a copy of this position that is transformed by given `operation`.\n\t *\n\t * The new position's parameters are updated accordingly to the effect of the `operation`.\n\t *\n\t * For example, if `n` nodes are inserted before the position, the returned position {@link ~Position#offset} will be\n\t * increased by `n`. If the position was in a merged element, it will be accordingly moved to the new element, etc.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operation Operation to transform by.\n\t * @returns {module:engine/model/position~Position} Transformed position.\n\t */\n\tpublic getTransformedByOperation( operation: Operation ): Position {\n\t\tlet result;\n\n\t\tswitch ( operation.type ) {\n\t\t\tcase 'insert':\n\t\t\t\tresult = this._getTransformedByInsertOperation( operation as InsertOperation );\n\t\t\t\tbreak;\n\t\t\tcase 'move':\n\t\t\tcase 'remove':\n\t\t\tcase 'reinsert':\n\t\t\t\tresult = this._getTransformedByMoveOperation( operation as MoveOperation );\n\t\t\t\tbreak;\n\t\t\tcase 'split':\n\t\t\t\tresult = this._getTransformedBySplitOperation( operation as SplitOperation );\n\t\t\t\tbreak;\n\t\t\tcase 'merge':\n\t\t\t\tresult = this._getTransformedByMergeOperation( operation as MergeOperation );\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\tresult = Position._createAt( this );\n\t\t\t\tbreak;\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by an insert operation.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/insertoperation~InsertOperation} operation\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic _getTransformedByInsertOperation( operation: InsertOperation ): Position {\n\t\treturn this._getTransformedByInsertion( operation.position, operation.howMany );\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by a move operation.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/moveoperation~MoveOperation} operation\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic _getTransformedByMoveOperation( operation: MoveOperation ): Position {\n\t\treturn this._getTransformedByMove( operation.sourcePosition, operation.targetPosition, operation.howMany );\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by a split operation.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/splitoperation~SplitOperation} operation\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic _getTransformedBySplitOperation( operation: SplitOperation ): Position {\n\t\tconst movedRange = operation.movedRange;\n\n\t\tconst isContained = movedRange.containsPosition( this ) ||\n\t\t\t( movedRange.start.isEqual( this ) && this.stickiness == 'toNext' );\n\n\t\tif ( isContained ) {\n\t\t\treturn this._getCombined( operation.splitPosition, operation.moveTargetPosition );\n\t\t} else {\n\t\t\tif ( operation.graveyardPosition ) {\n\t\t\t\treturn this._getTransformedByMove( operation.graveyardPosition, operation.insertionPosition, 1 );\n\t\t\t} else {\n\t\t\t\treturn this._getTransformedByInsertion( operation.insertionPosition, 1 );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by merge operation.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/mergeoperation~MergeOperation} operation\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic _getTransformedByMergeOperation( operation: MergeOperation ): Position {\n\t\tconst movedRange = operation.movedRange;\n\t\tconst isContained = movedRange.containsPosition( this ) || movedRange.start.isEqual( this );\n\n\t\tlet pos;\n\n\t\tif ( isContained ) {\n\t\t\tpos = this._getCombined( operation.sourcePosition, operation.targetPosition );\n\n\t\t\tif ( operation.sourcePosition.isBefore( operation.targetPosition ) ) {\n\t\t\t\t// Above happens during OT when the merged element is moved before the merged-to element.\n\t\t\t\tpos = pos._getTransformedByDeletion( operation.deletionPosition, 1 )!;\n\t\t\t}\n\t\t} else if ( this.isEqual( operation.deletionPosition ) ) {\n\t\t\tpos = Position._createAt( operation.deletionPosition );\n\t\t} else {\n\t\t\tpos = this._getTransformedByMove( operation.deletionPosition, operation.graveyardPosition, 1 );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Returns a copy of this position that is updated by removing `howMany` nodes starting from `deletePosition`.\n\t * It may happen that this position is in a removed node. If that is the case, `null` is returned instead.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} deletePosition Position before the first removed node.\n\t * @param {Number} howMany How many nodes are removed.\n\t * @returns {module:engine/model/position~Position|null} Transformed position or `null`.\n\t */\n\tpublic _getTransformedByDeletion( deletePosition: Position, howMany: number ): Position | null {\n\t\tconst transformed = Position._createAt( this );\n\n\t\t// This position can't be affected if deletion was in a different root.\n\t\tif ( this.root != deletePosition.root ) {\n\t\t\treturn transformed;\n\t\t}\n\n\t\tif ( compareArrays( deletePosition.getParentPath(), this.getParentPath() ) == 'same' ) {\n\t\t\t// If nodes are removed from the node that is pointed by this position...\n\t\t\tif ( deletePosition.offset < this.offset ) {\n\t\t\t\t// And are removed from before an offset of that position...\n\t\t\t\tif ( deletePosition.offset + howMany > this.offset ) {\n\t\t\t\t\t// Position is in removed range, it's no longer in the tree.\n\t\t\t\t\treturn null;\n\t\t\t\t} else {\n\t\t\t\t\t// Decrement the offset accordingly.\n\t\t\t\t\ttransformed.offset -= howMany;\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( compareArrays( deletePosition.getParentPath(), this.getParentPath() ) == 'prefix' ) {\n\t\t\t// If nodes are removed from a node that is on a path to this position...\n\t\t\tconst i = deletePosition.path.length - 1;\n\n\t\t\tif ( deletePosition.offset <= this.path[ i ] ) {\n\t\t\t\t// And are removed from before next node of that path...\n\t\t\t\tif ( deletePosition.offset + howMany > this.path[ i ] ) {\n\t\t\t\t\t// If the next node of that path is removed return null\n\t\t\t\t\t// because the node containing this position got removed.\n\t\t\t\t\treturn null;\n\t\t\t\t} else {\n\t\t\t\t\t// Otherwise, decrement index on that path.\n\t\t\t\t\ttransformed.path[ i ] -= howMany;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn transformed;\n\t}\n\n\t/**\n\t * Returns a copy of this position that is updated by inserting `howMany` nodes at `insertPosition`.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} insertPosition Position where nodes are inserted.\n\t * @param {Number} howMany How many nodes are inserted.\n\t * @returns {module:engine/model/position~Position} Transformed position.\n\t */\n\tpublic _getTransformedByInsertion( insertPosition: Position, howMany: number ): Position {\n\t\tconst transformed = Position._createAt( this );\n\n\t\t// This position can't be affected if insertion was in a different root.\n\t\tif ( this.root != insertPosition.root ) {\n\t\t\treturn transformed;\n\t\t}\n\n\t\tif ( compareArrays( insertPosition.getParentPath(), this.getParentPath() ) == 'same' ) {\n\t\t\t// If nodes are inserted in the node that is pointed by this position...\n\t\t\tif ( insertPosition.offset < this.offset || ( insertPosition.offset == this.offset && this.stickiness != 'toPrevious' ) ) {\n\t\t\t\t// And are inserted before an offset of that position...\n\t\t\t\t// \"Push\" this positions offset.\n\t\t\t\ttransformed.offset += howMany;\n\t\t\t}\n\t\t} else if ( compareArrays( insertPosition.getParentPath(), this.getParentPath() ) == 'prefix' ) {\n\t\t\t// If nodes are inserted in a node that is on a path to this position...\n\t\t\tconst i = insertPosition.path.length - 1;\n\n\t\t\tif ( insertPosition.offset <= this.path[ i ] ) {\n\t\t\t\t// And are inserted before next node of that path...\n\t\t\t\t// \"Push\" the index on that path.\n\t\t\t\ttransformed.path[ i ] += howMany;\n\t\t\t}\n\t\t}\n\n\t\treturn transformed;\n\t}\n\n\t/**\n\t * Returns a copy of this position that is updated by moving `howMany` nodes from `sourcePosition` to `targetPosition`.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} sourcePosition Position before the first element to move.\n\t * @param {module:engine/model/position~Position} targetPosition Position where moved elements will be inserted.\n\t * @param {Number} howMany How many consecutive nodes to move, starting from `sourcePosition`.\n\t * @returns {module:engine/model/position~Position} Transformed position.\n\t */\n\tpublic _getTransformedByMove( sourcePosition: Position, targetPosition: Position, howMany: number ): Position {\n\t\t// Update target position, as it could be affected by nodes removal.\n\t\ttargetPosition = targetPosition._getTransformedByDeletion( sourcePosition, howMany )!;\n\n\t\tif ( sourcePosition.isEqual( targetPosition ) ) {\n\t\t\t// If `targetPosition` is equal to `sourcePosition` this isn't really any move. Just return position as it is.\n\t\t\treturn Position._createAt( this );\n\t\t}\n\n\t\t// Moving a range removes nodes from their original position. We acknowledge this by proper transformation.\n\t\tconst transformed = this._getTransformedByDeletion( sourcePosition, howMany );\n\n\t\tconst isMoved = transformed === null ||\n\t\t\t( sourcePosition.isEqual( this ) && this.stickiness == 'toNext' ) ||\n\t\t\t( sourcePosition.getShiftedBy( howMany ).isEqual( this ) && this.stickiness == 'toPrevious' );\n\n\t\tif ( isMoved ) {\n\t\t\t// This position is inside moved range (or sticks to it).\n\t\t\t// In this case, we calculate a combination of this position, move source position and target position.\n\t\t\treturn this._getCombined( sourcePosition, targetPosition );\n\t\t} else {\n\t\t\t// This position is not inside a removed range.\n\t\t\t//\n\t\t\t// In next step, we simply reflect inserting `howMany` nodes, which might further affect the position.\n\t\t\treturn transformed._getTransformedByInsertion( targetPosition, howMany );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a new position that is a combination of this position and given positions.\n\t *\n\t * The combined position is a copy of this position transformed by moving a range starting at `source` position\n\t * to the `target` position. It is expected that this position is inside the moved range.\n\t *\n\t * Example:\n\t *\n\t *\t\tlet original = model.createPositionFromPath( root, [ 2, 3, 1 ] );\n\t *\t\tlet source = model.createPositionFromPath( root, [ 2, 2 ] );\n\t *\t\tlet target = model.createPositionFromPath( otherRoot, [ 1, 1, 3 ] );\n\t *\t\toriginal._getCombined( source, target ); // path is [ 1, 1, 4, 1 ], root is `otherRoot`\n\t *\n\t * Explanation:\n\t *\n\t * We have a position `[ 2, 3, 1 ]` and move some nodes from `[ 2, 2 ]` to `[ 1, 1, 3 ]`. The original position\n\t * was inside moved nodes and now should point to the new place. The moved nodes will be after\n\t * positions `[ 1, 1, 3 ]`, `[ 1, 1, 4 ]`, `[ 1, 1, 5 ]`. Since our position was in the second moved node,\n\t * the transformed position will be in a sub-tree of a node at `[ 1, 1, 4 ]`. Looking at original path, we\n\t * took care of `[ 2, 3 ]` part of it. Now we have to add the rest of the original path to the transformed path.\n\t * Finally, the transformed position will point to `[ 1, 1, 4, 1 ]`.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} source Beginning of the moved range.\n\t * @param {module:engine/model/position~Position} target Position where the range is moved.\n\t * @returns {module:engine/model/position~Position} Combined position.\n\t */\n\tpublic _getCombined( source: Position, target: Position ): Position {\n\t\tconst i = source.path.length - 1;\n\n\t\t// The first part of a path to combined position is a path to the place where nodes were moved.\n\t\tconst combined = Position._createAt( target );\n\t\tcombined.stickiness = this.stickiness;\n\n\t\t// Then we have to update the rest of the path.\n\n\t\t// Fix the offset because this position might be after `from` position and we have to reflect that.\n\t\tcombined.offset = combined.offset + this.path[ i ] - source.offset;\n\n\t\t// Then, add the rest of the path.\n\t\t// If this position is at the same level as `from` position nothing will get added.\n\t\tcombined.path = [ ...combined.path, ...this.path.slice( i + 1 ) ];\n\n\t\treturn combined;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic toJSON(): unknown {\n\t\treturn {\n\t\t\troot: this.root.toJSON(),\n\t\t\tpath: Array.from( this.path ),\n\t\t\tstickiness: this.stickiness\n\t\t};\n\t}\n\n\t/**\n\t * Returns a new position that is equal to current position.\n\t *\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic clone(): this {\n\t\treturn new ( this.constructor as any )( this.root, this.path, this.stickiness );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/model/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/model/item~Item model item} and `'before'` or `'after'` (sets position before or after given model item).\n\t *\n\t * This method is a shortcut to other factory methods such as:\n\t *\n\t * * {@link module:engine/model/position~Position._createBefore},\n\t * * {@link module:engine/model/position~Position._createAfter}.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when the\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone'] Position stickiness. Used only when the\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t * @protected\n\t * @internal\n\t */\n\tpublic static _createAt(\n\t\titemOrPosition: Item | Position | DocumentFragment,\n\t\toffset?: number | 'before' | 'after' | 'end',\n\t\tstickiness: PositionStickiness = 'toNone'\n\t): Position {\n\t\tif ( itemOrPosition instanceof Position ) {\n\t\t\treturn new Position( itemOrPosition.root, itemOrPosition.path, itemOrPosition.stickiness );\n\t\t} else {\n\t\t\tconst node = itemOrPosition;\n\n\t\t\tif ( offset == 'end' ) {\n\t\t\t\toffset = ( node as any ).maxOffset;\n\t\t\t} else if ( offset == 'before' ) {\n\t\t\t\treturn this._createBefore( node, stickiness );\n\t\t\t} else if ( offset == 'after' ) {\n\t\t\t\treturn this._createAfter( node, stickiness );\n\t\t\t} else if ( offset !== 0 && !offset ) {\n\t\t\t\t/**\n\t\t\t\t * {@link module:engine/model/model~Model#createPositionAt `Model#createPositionAt()`}\n\t\t\t\t * requires the offset to be specified when the first parameter is a model item.\n\t\t\t\t *\n\t\t\t\t * @error model-createpositionat-offset-required\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-createpositionat-offset-required', [ this, itemOrPosition ] );\n\t\t\t}\n\n\t\t\tif ( !node.is( 'element' ) && !node.is( 'documentFragment' ) ) {\n\t\t\t\t/**\n\t\t\t\t * Position parent have to be a model element or model document fragment.\n\t\t\t\t *\n\t\t\t\t * @error model-position-parent-incorrect\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'model-position-parent-incorrect',\n\t\t\t\t\t[ this, itemOrPosition ]\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tconst path = node.getPath();\n\n\t\t\tpath.push( offset as any );\n\n\t\t\treturn new this( node.root as any, path, stickiness );\n\t\t}\n\t}\n\n\t/**\n\t * Creates a new position, after given {@link module:engine/model/item~Item model item}.\n\t *\n\t * @param {module:engine/model/item~Item} item Item after which the position should be placed.\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone'] Position stickiness.\n\t * @returns {module:engine/model/position~Position}\n\t * @protected\n\t * @internal\n\t */\n\tpublic static _createAfter( item: Item | DocumentFragment, stickiness?: PositionStickiness ): Position {\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You can not make a position after a root element.\n\t\t\t *\n\t\t\t * @error model-position-after-root\n\t\t\t * @param {module:engine/model/item~Item} root\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-after-root',\n\t\t\t\t[ this, item ],\n\t\t\t\t{ root: item }\n\t\t\t);\n\t\t}\n\n\t\treturn this._createAt( item.parent, item.endOffset!, stickiness );\n\t}\n\n\t/**\n\t * Creates a new position, before the given {@link module:engine/model/item~Item model item}.\n\t *\n\t * @param {module:engine/model/item~Item} item Item before which the position should be placed.\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone'] Position stickiness.\n\t * @returns {module:engine/model/position~Position}\n\t * @protected\n\t * @internal\n\t */\n\tpublic static _createBefore( item: Item | DocumentFragment, stickiness?: PositionStickiness ): Position {\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You can not make a position before a root element.\n\t\t\t *\n\t\t\t * @error model-position-before-root\n\t\t\t * @param {module:engine/model/item~Item} root\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-before-root',\n\t\t\t\titem,\n\t\t\t\t{ root: item }\n\t\t\t);\n\t\t}\n\n\t\treturn this._createAt( item.parent, item.startOffset!, stickiness );\n\t}\n\n\t/**\n\t * Creates a `Position` instance from given plain object (i.e. parsed JSON string).\n\t *\n\t * @param {Object} json Plain object to be converted to `Position`.\n\t * @param {module:engine/model/document~Document} doc Document object that will be position owner.\n\t * @returns {module:engine/model/position~Position} `Position` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any, doc: Document ): Position {\n\t\tif ( json.root === '$graveyard' ) {\n\t\t\tconst pos = new Position( doc.graveyard, json.path );\n\t\t\tpos.stickiness = json.stickiness;\n\n\t\t\treturn pos;\n\t\t}\n\n\t\tif ( !doc.getRoot( json.root ) ) {\n\t\t\t/**\n\t\t\t * Cannot create position for document. Root with specified name does not exist.\n\t\t\t *\n\t\t\t * @error model-position-fromjson-no-root\n\t\t\t * @param {String} rootName\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-fromjson-no-root',\n\t\t\t\tdoc,\n\t\t\t\t{ rootName: json.root }\n\t\t\t);\n\t\t}\n\n\t\treturn new Position( doc.getRoot( json.root )!, json.path, json.stickiness );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `${ this.root } [ ${ this.path.join( ', ' ) } ]`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelPosition: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tposition.is( 'position' ); // -> true\n *\t\tposition.is( 'model:position' ); // -> true\n *\n *\t\tposition.is( 'view:position' ); // -> false\n *\t\tposition.is( 'documentSelection' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nPosition.prototype.is = function( type: string ): boolean {\n\treturn type === 'position' || type === 'model:position';\n};\n\n/**\n * A flag indicating whether this position is `'before'` or `'after'` or `'same'` as given position.\n * If positions are in different roots `'different'` flag is returned.\n *\n * @typedef {String} module:engine/model/position~PositionRelation\n */\nexport type PositionRelation = 'before' | 'after' | 'same' | 'different';\n\n/**\n * Represents how position is \"sticking\" with neighbour nodes. Used to define how position should be transformed (moved)\n * in edge cases. Possible values: `'toNone'`, `'toNext'`, `'toPrevious'`.\n *\n * Examples:\n *\n *\t\tInsert. Position is at | and nodes are inserted at the same position, marked as ^:\n *\n *\t\t- sticks to none:           <p>f^|oo</p>  ->  <p>fbar|oo</p>\n *\t\t- sticks to next node:      <p>f^|oo</p>  ->  <p>fbar|oo</p>\n *\t\t- sticks to previous node:  <p>f|^oo</p>  ->  <p>f|baroo</p>\n *\n *\n *\t\tMove. Position is at | and range [oo] is moved to position ^:\n *\n *\t\t- sticks to none:           <p>f|[oo]</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n *\t\t- sticks to none:           <p>f[oo]|</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n *\n *\t\t- sticks to next node:      <p>f|[oo]</p><p>b^ar</p>  ->  <p>f</p><p>b|ooar</p>\n *\t\t- sticks to next node:      <p>f[oo]|</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n *\n *\t\t- sticks to previous node:  <p>f|[oo]</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n *\t\t- sticks to previous node:  <p>f[oo]|</p><p>b^ar</p>  ->  <p>f</p><p>boo|ar</p>\n *\n * @typedef {String} module:engine/model/position~PositionStickiness\n */\nexport type PositionStickiness = 'toNone' | 'toNext' | 'toPrevious';\n\n/**\n * Returns a text node at the given position.\n *\n * This is a helper function optimized to reuse the position parent instance for performance reasons.\n *\n * Normally, you should use {@link module:engine/model/position~Position#textNode `Position#textNode`}.\n * If you start hitting performance issues with {@link module:engine/model/position~Position#parent `Position#parent`}\n * check if your algorithm does not access it multiple times (which can happen directly or indirectly via other position properties).\n *\n * See https://github.com/ckeditor/ckeditor5/issues/6579.\n *\n * See also:\n *\n * * {@link module:engine/model/position~getNodeAfterPosition}\n * * {@link module:engine/model/position~getNodeBeforePosition}\n *\n * @param {module:engine/model/position~Position} position\n * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} positionParent The parent of the\n * given position.\n * @returns {module:engine/model/text~Text|null}\n */\nexport function getTextNodeAtPosition( position: Position, positionParent: Element | DocumentFragment ): Text | null {\n\tconst node = positionParent.getChild( positionParent.offsetToIndex( position.offset ) );\n\n\tif ( node && node.is( '$text' ) && node.startOffset! < position.offset ) {\n\t\treturn node;\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns the node after the given position.\n *\n * This is a helper function optimized to reuse the position parent instance and the calculation of the text node at the\n * specific position for performance reasons.\n *\n * Normally, you should use {@link module:engine/model/position~Position#nodeAfter `Position#nodeAfter`}.\n * If you start hitting performance issues with {@link module:engine/model/position~Position#parent `Position#parent`} and/or\n * {@link module:engine/model/position~Position#textNode `Position#textNode`}\n * check if your algorithm does not access those properties multiple times\n * (which can happen directly or indirectly via other position properties).\n *\n * See https://github.com/ckeditor/ckeditor5/issues/6579 and https://github.com/ckeditor/ckeditor5/issues/6582.\n *\n * See also:\n *\n * * {@link module:engine/model/position~getTextNodeAtPosition}\n * * {@link module:engine/model/position~getNodeBeforePosition}\n *\n * @param {module:engine/model/position~Position} position\n * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} positionParent The parent of the\n * given position.\n * @param {module:engine/model/text~Text|null} textNode Text node at the given position.\n * @returns {module:engine/model/node~Node|null}\n */\nexport function getNodeAfterPosition(\n\tposition: Position,\n\tpositionParent: Element | DocumentFragment,\n\ttextNode: Text | null\n): Node | null {\n\tif ( textNode !== null ) {\n\t\treturn null;\n\t}\n\n\treturn positionParent.getChild( positionParent.offsetToIndex( position.offset ) );\n}\n\n/**\n * Returns the node before the given position.\n *\n * Refer to {@link module:engine/model/position~getNodeBeforePosition} for documentation on when to use this util method.\n *\n * See also:\n *\n * * {@link module:engine/model/position~getTextNodeAtPosition}\n * * {@link module:engine/model/position~getNodeAfterPosition}\n *\n * @param {module:engine/model/position~Position} position\n * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} positionParent The parent of the\n * given position.\n * @param {module:engine/model/text~Text|null} textNode Text node at the given position.\n * @returns {module:engine/model/node~Node|null}\n */\nexport function getNodeBeforePosition(\n\tposition: Position,\n\tpositionParent: Element | DocumentFragment,\n\ttextNode: Text | null\n): Node | null {\n\tif ( textNode !== null ) {\n\t\treturn null;\n\t}\n\n\treturn positionParent.getChild( positionParent.offsetToIndex( position.offset ) - 1 );\n}\n\n// This is a helper function for `Position#isTouching()`.\n//\n// It checks whether to given positions are touching, considering that they have the same root and paths\n// until given level, and at given level they differ by 1 (so they are branching at `level` point).\n//\n// The exact requirements for touching positions are described in `Position#isTouching()` and also\n// in the body of this function.\n//\n// @param {module:engine/model/position~Position} left Position \"on the left\" (it is before `right`).\n// @param {module:engine/model/position~Position} right Position \"on the right\" (it is after `left`).\n// @param {Number} level Level on which the positions are different.\n// @returns {Boolean}\nfunction checkTouchingBranch( left: Position, right: Position, level: number ): boolean {\n\tif ( level + 1 === left.path.length ) {\n\t\t// Left position does not have any more entries after the point where the positions differ.\n\t\t// [ 2 ] vs [ 3 ]\n\t\t// [ 2 ] vs [ 3, 0, 0 ]\n\t\t// The positions are spread by node at [ 2 ].\n\t\treturn false;\n\t}\n\n\tif ( !checkOnlyZeroes( right.path, level + 1 ) ) {\n\t\t// Right position does not have only zeroes, so we have situation like:\n\t\t// [ 2, maxOffset ] vs [ 3, 1 ]\n\t\t// [ 2, maxOffset ] vs [ 3, 1, 0, 0 ]\n\t\t// The positions are spread by node at [ 3, 0 ].\n\t\treturn false;\n\t}\n\n\tif ( !checkOnlyMaxOffset( left, level + 1 ) ) {\n\t\t// Left position does not have only max offsets, so we have situation like:\n\t\t// [ 2, 4 ] vs [ 3 ]\n\t\t// [ 2, 4 ] vs [ 3, 0, 0 ]\n\t\t// The positions are spread by node at [ 2, 5 ].\n\t\treturn false;\n\t}\n\n\t// Left position has only max offsets and right position has only zeroes or nothing.\n\t// [ 2, maxOffset ] vs [ 3 ]\n\t// [ 2, maxOffset, maxOffset ] vs [ 3, 0 ]\n\t// There are not elements between positions. The positions are touching.\n\treturn true;\n}\n\n// Checks whether for given array, starting from given index until the end of the array, all items are `0`s.\n//\n// This is a helper function for `Position#isTouching()`.\n//\n// @private\n// @param {Array.<Number>} arr Array to check.\n// @param {Number} idx Index to start checking from.\n// @returns {Boolean}\nfunction checkOnlyZeroes( arr: Array<number>, idx: number ): boolean {\n\twhile ( idx < arr.length ) {\n\t\tif ( arr[ idx ] !== 0 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tidx++;\n\t}\n\n\treturn true;\n}\n\n// Checks whether for given position, starting from given path level, whether the position is at the end of\n// its parent and whether each element on the path to the position is also at at the end of its parent.\n//\n// This is a helper function for `Position#isTouching()`.\n//\n// @private\n// @param {module:engine/model/position~Position} pos Position to check.\n// @param {Number} level Level to start checking from.\n// @returns {Boolean}\nfunction checkOnlyMaxOffset( pos: Position, level: number ): boolean {\n\tlet parent = pos.parent;\n\tlet idx = pos.path.length - 1;\n\tlet add = 0;\n\n\twhile ( idx >= level ) {\n\t\tif ( pos.path[ idx ] + add !== parent.maxOffset ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// After the first check, we \"go up\", and check whether the position's parent-parent is the last element.\n\t\t// However, we need to add 1 to the value in the path to \"simulate\" moving the path after the parent.\n\t\t// It happens just once.\n\t\tadd = 1;\n\t\tidx--;\n\t\tparent = parent.parent!;\n\t}\n\n\treturn true;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/range\n */\n\nimport TypeCheckable from './typecheckable';\nimport Position from './position';\nimport TreeWalker, { type TreeWalkerValue } from './treewalker';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type InsertOperation from './operation/insertoperation';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Operation from './operation/operation';\nimport type SplitOperation from './operation/splitoperation';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Represents a range in the model tree.\n *\n * A range is defined by its {@link module:engine/model/range~Range#start} and {@link module:engine/model/range~Range#end}\n * positions.\n *\n * You can create range instances via its constructor or the `createRange*()` factory methods of\n * {@link module:engine/model/model~Model} and {@link module:engine/model/writer~Writer}.\n */\nexport default class Range extends TypeCheckable implements Iterable<TreeWalkerValue> {\n\tpublic readonly start: Position;\n\tpublic readonly end: Position;\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * @param {module:engine/model/position~Position} start The start position.\n\t * @param {module:engine/model/position~Position|null} [end] The end position. If not set,\n\t * the range will be collapsed at the `start` position.\n\t */\n\tconstructor( start: Position, end?: Position | null ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Start position.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/position~Position}\n\t\t */\n\t\tthis.start = Position._createAt( start );\n\n\t\t/**\n\t\t * End position.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/position~Position}\n\t\t */\n\t\tthis.end = end ? Position._createAt( end ) : Position._createAt( start );\n\n\t\t// If the range is collapsed, treat in a similar way as a position and set its boundaries stickiness to 'toNone'.\n\t\t// In other case, make the boundaries stick to the \"inside\" of the range.\n\t\tthis.start.stickiness = this.isCollapsed ? 'toNone' : 'toNext';\n\t\tthis.end.stickiness = this.isCollapsed ? 'toNone' : 'toPrevious';\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all {@link module:engine/model/item~Item items} that are in this range and returns\n\t * them together with additional information like length or {@link module:engine/model/position~Position positions},\n\t * grouped as {@link module:engine/model/treewalker~TreeWalkerValue}.\n\t * It iterates over all {@link module:engine/model/textproxy~TextProxy text contents} that are inside the range\n\t * and all the {@link module:engine/model/element~Element}s that are entered into when iterating over this range.\n\t *\n\t * This iterator uses {@link module:engine/model/treewalker~TreeWalker} with `boundaries` set to this range\n\t * and `ignoreElementEnd` option set to `true`.\n\t *\n\t * @returns {Iterator.<module:engine/model/treewalker~TreeWalkerValue>}\n\t */\n\tpublic* [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\tyield* new TreeWalker( { boundaries: this, ignoreElementEnd: true } );\n\t}\n\n\t/**\n\t * Returns whether the range is collapsed, that is if {@link #start} and\n\t * {@link #end} positions are equal.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this.start.isEqual( this.end );\n\t}\n\n\t/**\n\t * Returns whether this range is flat, that is if {@link #start} position and\n\t * {@link #end} position are in the same {@link module:engine/model/position~Position#parent}.\n\t *\n\t * @type {Boolean}\n\t */\n\tpublic get isFlat(): boolean {\n\t\tconst startParentPath = this.start.getParentPath();\n\t\tconst endParentPath = this.end.getParentPath();\n\n\t\treturn compareArrays( startParentPath, endParentPath ) == 'same';\n\t}\n\n\t/**\n\t * Range root element.\n\t *\n\t * @type {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): Element | DocumentFragment {\n\t\treturn this.start.root;\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link module:engine/model/position~Position position}.\n\t *\n\t * @param {module:engine/model/position~Position} position Position to check.\n\t * @returns {Boolean} `true` if given {@link module:engine/model/position~Position position} is contained\n\t * in this range,`false` otherwise.\n\t */\n\tpublic containsPosition( position: Position ): boolean {\n\t\treturn position.isAfter( this.start ) && position.isBefore( this.end );\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link ~Range range}.\n\t *\n\t * @param {module:engine/model/range~Range} otherRange Range to check.\n\t * @param {Boolean} [loose=false] Whether the check is loose or strict. If the check is strict (`false`), compared range cannot\n\t * start or end at the same position as this range boundaries. If the check is loose (`true`), compared range can start, end or\n\t * even be equal to this range. Note that collapsed ranges are always compared in strict mode.\n\t * @returns {Boolean} `true` if given {@link ~Range range} boundaries are contained by this range, `false` otherwise.\n\t */\n\tpublic containsRange( otherRange: Range, loose: boolean = false ): boolean {\n\t\tif ( otherRange.isCollapsed ) {\n\t\t\tloose = false;\n\t\t}\n\n\t\tconst containsStart = this.containsPosition( otherRange.start ) || ( loose && this.start.isEqual( otherRange.start ) );\n\t\tconst containsEnd = this.containsPosition( otherRange.end ) || ( loose && this.end.isEqual( otherRange.end ) );\n\n\t\treturn containsStart && containsEnd;\n\t}\n\n\t/**\n\t * Checks whether given {@link module:engine/model/item~Item} is inside this range.\n\t *\n\t * @param {module:engine/model/item~Item} item Model item to check.\n\t */\n\tpublic containsItem( item: Item ): boolean {\n\t\tconst pos = Position._createBefore( item );\n\n\t\treturn this.containsPosition( pos ) || this.start.isEqual( pos );\n\t}\n\n\t/**\n\t * Two ranges are equal if their {@link #start} and {@link #end} positions are equal.\n\t *\n\t * @param {module:engine/model/range~Range} otherRange Range to compare with.\n\t * @returns {Boolean} `true` if ranges are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherRange: Range ): boolean {\n\t\treturn this.start.isEqual( otherRange.start ) && this.end.isEqual( otherRange.end );\n\t}\n\n\t/**\n\t * Checks and returns whether this range intersects with given range.\n\t *\n\t * @param {module:engine/model/range~Range} otherRange Range to compare with.\n\t * @returns {Boolean} `true` if ranges intersect, `false` otherwise.\n\t */\n\tpublic isIntersecting( otherRange: Range ): boolean {\n\t\treturn this.start.isBefore( otherRange.end ) && this.end.isAfter( otherRange.start );\n\t}\n\n\t/**\n\t * Computes which part(s) of this {@link ~Range range} is not a part of given {@link ~Range range}.\n\t * Returned array contains zero, one or two {@link ~Range ranges}.\n\t *\n\t * Examples:\n\t *\n\t *\t\tlet range = model.createRange(\n\t *\t\t\tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t *\t\t\tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t *\t\t);\n\t *\t\tlet otherRange = model.createRange( model.createPositionFromPath( root, [ 1 ] ), model.createPositionFromPath( root, [ 5 ] ) );\n\t *\t\tlet transformed = range.getDifference( otherRange );\n\t *\t\t// transformed array has no ranges because `otherRange` contains `range`\n\t *\n\t *\t\totherRange = model.createRange( model.createPositionFromPath( root, [ 1 ] ), model.createPositionFromPath( root, [ 3 ] ) );\n\t *\t\ttransformed = range.getDifference( otherRange );\n\t *\t\t// transformed array has one range: from [ 3 ] to [ 4, 0, 1 ]\n\t *\n\t *\t\totherRange = model.createRange( model.createPositionFromPath( root, [ 3 ] ), model.createPositionFromPath( root, [ 4 ] ) );\n\t *\t\ttransformed = range.getDifference( otherRange );\n\t *\t\t// transformed array has two ranges: from [ 2, 7 ] to [ 3 ] and from [ 4 ] to [ 4, 0, 1 ]\n\t *\n\t * @param {module:engine/model/range~Range} otherRange Range to differentiate against.\n\t * @returns {Array.<module:engine/model/range~Range>} The difference between ranges.\n\t */\n\tpublic getDifference( otherRange: Range ): Array<Range> {\n\t\tconst ranges = [];\n\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect.\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the start to the middle of this range.\n\t\t\t\tranges.push( new Range( this.start, otherRange.start ) );\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the middle of this range to the end.\n\t\t\t\tranges.push( new Range( otherRange.end, this.end ) );\n\t\t\t}\n\t\t} else {\n\t\t\t// Ranges do not intersect, return the original range.\n\t\t\tranges.push( new Range( this.start, this.end ) );\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Returns an intersection of this {@link ~Range range} and given {@link ~Range range}.\n\t * Intersection is a common part of both of those ranges. If ranges has no common part, returns `null`.\n\t *\n\t * Examples:\n\t *\n\t *\t\tlet range = model.createRange(\n\t *\t\t\tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t *\t\t\tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t *\t\t);\n\t *\t\tlet otherRange = model.createRange( model.createPositionFromPath( root, [ 1 ] ), model.createPositionFromPath( root, [ 2 ] ) );\n\t *\t\tlet transformed = range.getIntersection( otherRange ); // null - ranges have no common part\n\t *\n\t *\t\totherRange = model.createRange( model.createPositionFromPath( root, [ 3 ] ), model.createPositionFromPath( root, [ 5 ] ) );\n\t *\t\ttransformed = range.getIntersection( otherRange ); // range from [ 3 ] to [ 4, 0, 1 ]\n\t *\n\t * @param {module:engine/model/range~Range} otherRange Range to check for intersection.\n\t * @returns {module:engine/model/range~Range|null} A common part of given ranges or `null` if ranges have no common part.\n\t */\n\tpublic getIntersection( otherRange: Range ): Range | null {\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect, so a common range will be returned.\n\t\t\t// At most, it will be same as this range.\n\t\t\tlet commonRangeStart = this.start;\n\t\t\tlet commonRangeEnd = this.end;\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means thaNt we have to\n\t\t\t\t// shrink common range to the given range start.\n\t\t\t\tcommonRangeStart = otherRange.start;\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// shrink common range to the given range end.\n\t\t\t\tcommonRangeEnd = otherRange.end;\n\t\t\t}\n\n\t\t\treturn new Range( commonRangeStart, commonRangeEnd );\n\t\t}\n\n\t\t// Ranges do not intersect, so they do not have common part.\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns a range created by joining this {@link ~Range range} with the given {@link ~Range range}.\n\t * If ranges have no common part, returns `null`.\n\t *\n\t * Examples:\n\t *\n\t *\t\tlet range = model.createRange(\n\t *\t\t\tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t *\t\t\tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t *\t\t);\n\t *\t\tlet otherRange = model.createRange(\n\t *\t\t\tmodel.createPositionFromPath( root, [ 1 ] ),\n\t *\t\t\tmodel.createPositionFromPath( root, [ 2 ] )\n \t *\t\t);\n\t *\t\tlet transformed = range.getJoined( otherRange ); // null - ranges have no common part\n\t *\n\t *\t\totherRange = model.createRange(\n\t *\t\t\tmodel.createPositionFromPath( root, [ 3 ] ),\n\t *\t\t\tmodel.createPositionFromPath( root, [ 5 ] )\n\t *\t\t);\n\t *\t\ttransformed = range.getJoined( otherRange ); // range from [ 2, 7 ] to [ 5 ]\n\t *\n\t * @param {module:engine/model/range~Range} otherRange Range to be joined.\n\t * @param {Boolean} [loose=false] Whether the intersection check is loose or strict. If the check is strict (`false`),\n\t * ranges are tested for intersection or whether start/end positions are equal. If the check is loose (`true`),\n\t * compared range is also checked if it's {@link module:engine/model/position~Position#isTouching touching} current range.\n\t * @returns {module:engine/model/range~Range|null} A sum of given ranges or `null` if ranges have no common part.\n\t */\n\tpublic getJoined( otherRange: Range, loose: boolean = false ): Range | null {\n\t\tlet shouldJoin = this.isIntersecting( otherRange );\n\n\t\tif ( !shouldJoin ) {\n\t\t\tif ( this.start.isBefore( otherRange.start ) ) {\n\t\t\t\tshouldJoin = loose ? this.end.isTouching( otherRange.start ) : this.end.isEqual( otherRange.start );\n\t\t\t} else {\n\t\t\t\tshouldJoin = loose ? otherRange.end.isTouching( this.start ) : otherRange.end.isEqual( this.start );\n\t\t\t}\n\t\t}\n\n\t\tif ( !shouldJoin ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tlet startPosition = this.start;\n\t\tlet endPosition = this.end;\n\n\t\tif ( otherRange.start.isBefore( startPosition ) ) {\n\t\t\tstartPosition = otherRange.start;\n\t\t}\n\n\t\tif ( otherRange.end.isAfter( endPosition ) ) {\n\t\t\tendPosition = otherRange.end;\n\t\t}\n\n\t\treturn new Range( startPosition, endPosition );\n\t}\n\n\t/**\n\t * Computes and returns the smallest set of {@link #isFlat flat} ranges, that covers this range in whole.\n\t *\n\t * See an example of a model structure (`[` and `]` are range boundaries):\n\t *\n\t *\t\troot                                                            root\n\t *\t\t |- element DIV                         DIV             P2              P3             DIV\n\t *\t\t |   |- element H                   H        P1        f o o           b a r       H         P4\n\t *\t\t |   |   |- \"fir[st\"             fir[st     lorem                               se]cond     ipsum\n\t *\t\t |   |- element P1\n\t *\t\t |   |   |- \"lorem\"                                              ||\n\t *\t\t |- element P2                                                   ||\n\t *\t\t |   |- \"foo\"                                                    VV\n\t *\t\t |- element P3\n\t *\t\t |   |- \"bar\"                                                   root\n\t *\t\t |- element DIV                         DIV             [P2             P3]             DIV\n\t *\t\t |   |- element H                   H       [P1]       f o o           b a r        H         P4\n\t *\t\t |   |   |- \"se]cond\"            fir[st]    lorem                               [se]cond     ipsum\n\t *\t\t |   |- element P4\n\t *\t\t |   |   |- \"ipsum\"\n\t *\n\t * As it can be seen, letters contained in the range are: `stloremfoobarse`, spread across different parents.\n\t * We are looking for minimal set of flat ranges that contains the same nodes.\n\t *\n\t * Minimal flat ranges for above range `( [ 0, 0, 3 ], [ 3, 0, 2 ] )` will be:\n\t *\n\t *\t\t( [ 0, 0, 3 ], [ 0, 0, 5 ] ) = \"st\"\n\t *\t\t( [ 0, 1 ], [ 0, 2 ] ) = element P1 (\"lorem\")\n\t *\t\t( [ 1 ], [ 3 ] ) = element P2, element P3 (\"foobar\")\n\t *\t\t( [ 3, 0, 0 ], [ 3, 0, 2 ] ) = \"se\"\n\t *\n\t * **Note:** if an {@link module:engine/model/element~Element element} is not wholly contained in this range, it won't be returned\n\t * in any of the returned flat ranges. See in the example how `H` elements at the beginning and at the end of the range\n\t * were omitted. Only their parts that were wholly in the range were returned.\n\t *\n\t * **Note:** this method is not returning flat ranges that contain no nodes.\n\t *\n\t * @returns {Array.<module:engine/model/range~Range>} Array of flat ranges covering this range.\n\t */\n\tpublic getMinimalFlatRanges(): Array<Range> {\n\t\tconst ranges = [];\n\t\tconst diffAt = this.start.getCommonPath( this.end ).length;\n\n\t\tconst pos = Position._createAt( this.start );\n\t\tlet posParent = pos.parent;\n\n\t\t// Go up.\n\t\twhile ( pos.path.length > diffAt + 1 ) {\n\t\t\tconst howMany = posParent.maxOffset - pos.offset;\n\n\t\t\tif ( howMany !== 0 ) {\n\t\t\t\tranges.push( new Range( pos, pos.getShiftedBy( howMany ) ) );\n\t\t\t}\n\n\t\t\tpos.path = pos.path.slice( 0, -1 );\n\t\t\tpos.offset++;\n\t\t\tposParent = posParent.parent!;\n\t\t}\n\n\t\t// Go down.\n\t\twhile ( pos.path.length <= this.end.path.length ) {\n\t\t\tconst offset = this.end.path[ pos.path.length - 1 ];\n\t\t\tconst howMany = offset - pos.offset;\n\n\t\t\tif ( howMany !== 0 ) {\n\t\t\t\tranges.push( new Range( pos, pos.getShiftedBy( howMany ) ) );\n\t\t\t}\n\n\t\t\tpos.offset = offset;\n\t\t\tpos.path.push( 0 );\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/treewalker~TreeWalker TreeWalker} instance with this range as a boundary.\n\t *\n\t * For example, to iterate over all items in the entire document root:\n\t *\n\t *\t\t// Create a range spanning over the entire root content:\n\t *\t\tconst range = editor.model.createRangeIn( editor.model.document.getRoot() );\n\t *\n\t *\t\t// Iterate over all items in this range:\n\t *\t\tfor ( const value of range.getWalker() ) {\n\t *\t\t\tconsole.log( value.item );\n\t *\t\t}\n\t *\n\t * @param {Object} options Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t * @param {module:engine/model/position~Position} [options.startPosition]\n\t * @param {Boolean} [options.singleCharacters=false]\n\t * @param {Boolean} [options.shallow=false]\n\t * @param {Boolean} [options.ignoreElementEnd=false]\n\t * @returns {module:engine/model/treewalker~TreeWalker}\n\t */\n\tpublic getWalker( options: ConstructorParameters<typeof TreeWalker>[ 0 ] = {} ): TreeWalker {\n\t\toptions.boundaries = this;\n\n\t\treturn new TreeWalker( options );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/model/item~Item items} that are in this range and returns\n\t * them.\n\t *\n\t * This method uses {@link module:engine/model/treewalker~TreeWalker} with `boundaries` set to this range and `ignoreElementEnd` option\n\t * set to `true`. However it returns only {@link module:engine/model/item~Item model items},\n\t * not {@link module:engine/model/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/model/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param {Object} [options] Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t * @returns {Iterable.<module:engine/model/item~Item>}\n\t */\n\tpublic* getItems( options: ConstructorParameters<typeof TreeWalker>[ 0 ] = {} ): IterableIterator<Item> {\n\t\toptions.boundaries = this;\n\t\toptions.ignoreElementEnd = true;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.item;\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/model/position~Position positions} that are boundaries or\n\t * contained in this range.\n\t *\n\t * This method uses {@link module:engine/model/treewalker~TreeWalker} with `boundaries` set to this range. However it returns only\n\t * {@link module:engine/model/position~Position positions}, not {@link module:engine/model/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/model/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param {Object} options Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t * @returns {Iterable.<module:engine/model/position~Position>}\n\t */\n\tpublic* getPositions( options: ConstructorParameters<typeof TreeWalker>[ 0 ] = {} ): IterableIterator<Position> {\n\t\toptions.boundaries = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tyield treeWalker.position;\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.nextPosition;\n\t\t}\n\t}\n\n\t/**\n\t * Returns a range that is a result of transforming this range by given `operation`.\n\t *\n\t * **Note:** transformation may break one range into multiple ranges (for example, when a part of the range is\n\t * moved to a different part of document tree). For this reason, an array is returned by this method and it\n\t * may contain one or more `Range` instances.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operation Operation to transform range by.\n\t * @returns {Array.<module:engine/model/range~Range>} Range which is the result of transformation.\n\t */\n\tpublic getTransformedByOperation( operation: Operation ): Array<Range> {\n\t\tswitch ( operation.type ) {\n\t\t\tcase 'insert':\n\t\t\t\treturn this._getTransformedByInsertOperation( operation as InsertOperation );\n\t\t\tcase 'move':\n\t\t\tcase 'remove':\n\t\t\tcase 'reinsert':\n\t\t\t\treturn this._getTransformedByMoveOperation( operation as MoveOperation );\n\t\t\tcase 'split':\n\t\t\t\treturn [ this._getTransformedBySplitOperation( operation as SplitOperation ) ];\n\t\t\tcase 'merge':\n\t\t\t\treturn [ this._getTransformedByMergeOperation( operation as MergeOperation ) ];\n\t\t}\n\n\t\treturn [ new Range( this.start, this.end ) ];\n\t}\n\n\t/**\n\t * Returns a range that is a result of transforming this range by multiple `operations`.\n\t *\n\t * @see ~Range#getTransformedByOperation\n\t * @param {Iterable.<module:engine/model/operation/operation~Operation>} operations Operations to transform the range by.\n\t * @returns {Array.<module:engine/model/range~Range>} Range which is the result of transformation.\n\t */\n\tpublic getTransformedByOperations( operations: Iterable<Operation> ): Array<Range> {\n\t\tconst ranges = [ new Range( this.start, this.end ) ];\n\n\t\tfor ( const operation of operations ) {\n\t\t\tfor ( let i = 0; i < ranges.length; i++ ) {\n\t\t\t\tconst result = ranges[ i ].getTransformedByOperation( operation );\n\n\t\t\t\tranges.splice( i, 1, ...result );\n\t\t\t\ti += result.length - 1;\n\t\t\t}\n\t\t}\n\n\t\t// It may happen that a range is split into two, and then the part of second \"piece\" is moved into first\n\t\t// \"piece\". In this case we will have incorrect third range, which should not be included in the result --\n\t\t// because it is already included in the first \"piece\". In this loop we are looking for all such ranges that\n\t\t// are inside other ranges and we simply remove them.\n\t\tfor ( let i = 0; i < ranges.length; i++ ) {\n\t\t\tconst range = ranges[ i ];\n\n\t\t\tfor ( let j = i + 1; j < ranges.length; j++ ) {\n\t\t\t\tconst next = ranges[ j ];\n\n\t\t\t\tif ( range.containsRange( next ) || next.containsRange( range ) || range.isEqual( next ) ) {\n\t\t\t\t\tranges.splice( j, 1 );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/model/element~Element} or {@link module:engine/model/documentfragment~DocumentFragment}\n\t * which is a common ancestor of the range's both ends (in which the entire range is contained).\n\t *\n\t * @returns {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment|null}\n\t */\n\tpublic getCommonAncestor(): Element | DocumentFragment | null {\n\t\treturn this.start.getCommonAncestor( this.end );\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/model/element~Element Element} contained by the range.\n\t * The element will be returned when it is the **only** node within the range and **fully–contained**\n\t * at the same time.\n\t *\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tpublic getContainedElement(): Element | null {\n\t\tif ( this.isCollapsed ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst nodeAfterStart = this.start.nodeAfter;\n\t\tconst nodeBeforeEnd = this.end.nodeBefore;\n\n\t\tif ( nodeAfterStart && nodeAfterStart.is( 'element' ) && nodeAfterStart === nodeBeforeEnd ) {\n\t\t\treturn nodeAfterStart;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Converts `Range` to plain object and returns it.\n\t *\n\t * @returns {Object} `Node` converted to plain object.\n\t */\n\tpublic toJSON(): unknown {\n\t\treturn {\n\t\t\tstart: this.start.toJSON(),\n\t\t\tend: this.end.toJSON()\n\t\t};\n\t}\n\n\t/**\n\t * Returns a new range that is equal to current range.\n\t *\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic clone(): this {\n\t\treturn new ( this.constructor as any )( this.start, this.end );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by insert operation.\n\t *\n\t * One or more ranges may be returned as a result of this transformation.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/insertoperation~InsertOperation} operation\n\t * @returns {Array.<module:engine/model/range~Range>}\n\t */\n\tpublic _getTransformedByInsertOperation( operation: InsertOperation, spread: boolean = false ): Array<Range> {\n\t\treturn this._getTransformedByInsertion( operation.position, operation.howMany, spread );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by move operation.\n\t *\n\t * One or more ranges may be returned as a result of this transformation.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/moveoperation~MoveOperation} operation\n\t * @returns {Array.<module:engine/model/range~Range>}\n\t */\n\tpublic _getTransformedByMoveOperation( operation: MoveOperation, spread: boolean = false ): Array<Range> {\n\t\tconst sourcePosition = operation.sourcePosition;\n\t\tconst howMany = operation.howMany;\n\t\tconst targetPosition = operation.targetPosition;\n\n\t\treturn this._getTransformedByMove( sourcePosition, targetPosition, howMany, spread );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by split operation.\n\t *\n\t * Always one range is returned. The transformation is done in a way to not break the range.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/splitoperation~SplitOperation} operation\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic _getTransformedBySplitOperation( operation: SplitOperation ): Range {\n\t\tconst start = this.start._getTransformedBySplitOperation( operation );\n\t\tlet end = this.end._getTransformedBySplitOperation( operation );\n\n\t\tif ( this.end.isEqual( operation.insertionPosition ) ) {\n\t\t\tend = this.end.getShiftedBy( 1 );\n\t\t}\n\n\t\t// Below may happen when range contains graveyard element used by split operation.\n\t\tif ( start.root != end.root ) {\n\t\t\t// End position was next to the moved graveyard element and was moved with it.\n\t\t\t// Fix it by using old `end` which has proper `root`.\n\t\t\tend = this.end.getShiftedBy( -1 );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by merge operation.\n\t *\n\t * Always one range is returned. The transformation is done in a way to not break the range.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/operation/mergeoperation~MergeOperation} operation\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic _getTransformedByMergeOperation( operation: MergeOperation ): Range {\n\t\t// Special case when the marker is set on \"the closing tag\" of an element. Marker can be set like that during\n\t\t// transformations, especially when a content of a few block elements were removed. For example:\n\t\t//\n\t\t// {} is the transformed range, [] is the removed range.\n\t\t// <p>F[o{o</p><p>B}ar</p><p>Xy]z</p>\n\t\t//\n\t\t// <p>Fo{o</p><p>B}ar</p><p>z</p>\n\t\t// <p>F{</p><p>B}ar</p><p>z</p>\n\t\t// <p>F{</p>}<p>z</p>\n\t\t// <p>F{}z</p>\n\t\t//\n\t\tif ( this.start.isEqual( operation.targetPosition ) && this.end.isEqual( operation.deletionPosition ) ) {\n\t\t\treturn new Range( this.start );\n\t\t}\n\n\t\tlet start = this.start._getTransformedByMergeOperation( operation );\n\t\tlet end = this.end._getTransformedByMergeOperation( operation );\n\n\t\tif ( start.root != end.root ) {\n\t\t\t// This happens when the end position was next to the merged (deleted) element.\n\t\t\t// Then, the end position was moved to the graveyard root. In this case we need to fix\n\t\t\t// the range cause its boundaries would be in different roots.\n\t\t\tend = this.end.getShiftedBy( -1 );\n\t\t}\n\n\t\tif ( start.isAfter( end ) ) {\n\t\t\t// This happens in three following cases:\n\t\t\t//\n\t\t\t// Case 1: Merge operation source position is before the target position (due to some transformations, OT, etc.)\n\t\t\t//         This means that start can be moved before the end of the range.\n\t\t\t//\n\t\t\t// Before: <p>a{a</p><p>b}b</p><p>cc</p>\n\t\t\t// Merge:  <p>b}b</p><p>cca{a</p>\n\t\t\t// Fix:    <p>{b}b</p><p>ccaa</p>\n\t\t\t//\n\t\t\t// Case 2: Range start is before merged node but not directly.\n\t\t\t//         Result should include all nodes that were in the original range.\n\t\t\t//\n\t\t\t// Before: <p>aa</p>{<p>cc</p><p>b}b</p>\n\t\t\t// Merge:  <p>aab}b</p>{<p>cc</p>\n\t\t\t// Fix:    <p>aa{bb</p><p>cc</p>}\n\t\t\t//\n\t\t\t//         The range is expanded by an additional `b` letter but it is better than dropping the whole `cc` paragraph.\n\t\t\t//\n\t\t\t// Case 3: Range start is directly before merged node.\n\t\t\t//         Resulting range should include only nodes from the merged element:\n\t\t\t//\n\t\t\t// Before: <p>aa</p>{<p>b}b</p><p>cc</p>\n\t\t\t// Merge:  <p>aab}b</p>{<p>cc</p>\n\t\t\t// Fix:    <p>aa{b}b</p><p>cc</p>\n\t\t\t//\n\n\t\t\tif ( operation.sourcePosition.isBefore( operation.targetPosition ) ) {\n\t\t\t\t// Case 1.\n\t\t\t\tstart = Position._createAt( end );\n\t\t\t\tstart.offset = 0;\n\t\t\t} else {\n\t\t\t\tif ( !operation.deletionPosition.isEqual( start ) ) {\n\t\t\t\t\t// Case 2.\n\t\t\t\t\tend = operation.deletionPosition;\n\t\t\t\t}\n\n\t\t\t\t// In both case 2 and 3 start is at the end of the merge-to element.\n\t\t\t\tstart = operation.targetPosition;\n\t\t\t}\n\n\t\t\treturn new Range( start, end );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Returns an array containing one or two {@link ~Range ranges} that are a result of transforming this\n\t * {@link ~Range range} by inserting `howMany` nodes at `insertPosition`. Two {@link ~Range ranges} are\n\t * returned if the insertion was inside this {@link ~Range range} and `spread` is set to `true`.\n\t *\n\t * Examples:\n\t *\n\t *\t\tlet range = model.createRange(\n\t *\t\t\tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t *\t\t\tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t *\t\t);\n\t *\t\tlet transformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 1 ] ), 2 );\n\t *\t\t// transformed array has one range from [ 4, 7 ] to [ 6, 0, 1 ]\n\t *\n\t *\t\ttransformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 4, 0, 0 ] ), 4 );\n\t *\t\t// transformed array has one range from [ 2, 7 ] to [ 4, 0, 5 ]\n\t *\n\t *\t\ttransformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 3, 2 ] ), 4 );\n\t *\t\t// transformed array has one range, which is equal to original range\n\t *\n\t *\t\ttransformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 3, 2 ] ), 4, true );\n\t *\t\t// transformed array has two ranges: from [ 2, 7 ] to [ 3, 2 ] and from [ 3, 6 ] to [ 4, 0, 1 ]\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} insertPosition Position where nodes are inserted.\n\t * @param {Number} howMany How many nodes are inserted.\n\t * @param {Boolean} [spread] Flag indicating whether this {~Range range} should be spread if insertion\n\t * was inside the range. Defaults to `false`.\n\t * @returns {Array.<module:engine/model/range~Range>} Result of the transformation.\n\t */\n\tpublic _getTransformedByInsertion( insertPosition: Position, howMany: number, spread: boolean = false ): Array<Range> {\n\t\tif ( spread && this.containsPosition( insertPosition ) ) {\n\t\t\t// Range has to be spread. The first part is from original start to the spread point.\n\t\t\t// The other part is from spread point to the original end, but transformed by\n\t\t\t// insertion to reflect insertion changes.\n\n\t\t\treturn [\n\t\t\t\tnew Range( this.start, insertPosition ),\n\t\t\t\tnew Range(\n\t\t\t\t\tinsertPosition.getShiftedBy( howMany ),\n\t\t\t\t\tthis.end._getTransformedByInsertion( insertPosition, howMany )\n\t\t\t\t)\n\t\t\t];\n\t\t} else {\n\t\t\tconst range = new Range( this.start, this.end );\n\n\t\t\t( range as any ).start = range.start._getTransformedByInsertion( insertPosition, howMany );\n\t\t\t( range as any ).end = range.end._getTransformedByInsertion( insertPosition, howMany );\n\n\t\t\treturn [ range ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns an array containing {@link ~Range ranges} that are a result of transforming this\n\t * {@link ~Range range} by moving `howMany` nodes from `sourcePosition` to `targetPosition`.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} sourcePosition Position from which nodes are moved.\n\t * @param {module:engine/model/position~Position} targetPosition Position to where nodes are moved.\n\t * @param {Number} howMany How many nodes are moved.\n\t * @param {Boolean} [spread=false] Whether the range should be spread if the move points inside the range.\n\t * @returns {Array.<module:engine/model/range~Range>} Result of the transformation.\n\t */\n\tpublic _getTransformedByMove(\n\t\tsourcePosition: Position,\n\t\ttargetPosition: Position,\n\t\thowMany: number,\n\t\tspread: boolean = false\n\t): Array<Range> {\n\t\t// Special case for transforming a collapsed range. Just transform it like a position.\n\t\tif ( this.isCollapsed ) {\n\t\t\tconst newPos = this.start._getTransformedByMove( sourcePosition, targetPosition, howMany );\n\n\t\t\treturn [ new Range( newPos ) ];\n\t\t}\n\n\t\t// Special case for transformation when a part of the range is moved towards the range.\n\t\t//\n\t\t// Examples:\n\t\t//\n\t\t// <div><p>ab</p><p>c[d</p></div><p>e]f</p> --> <div><p>ab</p></div><p>c[d</p><p>e]f</p>\n\t\t// <p>e[f</p><div><p>a]b</p><p>cd</p></div> --> <p>e[f</p><p>a]b</p><div><p>cd</p></div>\n\t\t//\n\t\t// Without this special condition, the default algorithm leaves an \"artifact\" range from one of `differenceSet` parts:\n\t\t//\n\t\t// <div><p>ab</p><p>c[d</p></div><p>e]f</p> --> <div><p>ab</p>{</div>}<p>c[d</p><p>e]f</p>\n\t\t//\n\t\t// This special case is applied only if the range is to be kept together (not spread).\n\t\tconst moveRange = Range._createFromPositionAndShift( sourcePosition, howMany );\n\t\tconst insertPosition = targetPosition._getTransformedByDeletion( sourcePosition, howMany );\n\n\t\tif ( this.containsPosition( targetPosition ) && !spread ) {\n\t\t\tif ( moveRange.containsPosition( this.start ) || moveRange.containsPosition( this.end ) ) {\n\t\t\t\tconst start = this.start._getTransformedByMove( sourcePosition, targetPosition, howMany );\n\t\t\t\tconst end = this.end._getTransformedByMove( sourcePosition, targetPosition, howMany );\n\n\t\t\t\treturn [ new Range( start, end ) ];\n\t\t\t}\n\t\t}\n\n\t\t// Default algorithm.\n\t\tlet result: Array<Range>;\n\n\t\tconst differenceSet = this.getDifference( moveRange );\n\t\tlet difference = null;\n\n\t\tconst common = this.getIntersection( moveRange );\n\n\t\tif ( differenceSet.length == 1 ) {\n\t\t\t// `moveRange` and this range may intersect but may be separate.\n\t\t\tdifference = new Range(\n\t\t\t\tdifferenceSet[ 0 ].start._getTransformedByDeletion( sourcePosition, howMany )!,\n\t\t\t\tdifferenceSet[ 0 ].end._getTransformedByDeletion( sourcePosition, howMany )!\n\t\t\t);\n\t\t} else if ( differenceSet.length == 2 ) {\n\t\t\t// `moveRange` is inside this range.\n\t\t\tdifference = new Range(\n\t\t\t\tthis.start,\n\t\t\t\tthis.end._getTransformedByDeletion( sourcePosition, howMany )\n\t\t\t);\n\t\t} // else, `moveRange` contains this range.\n\n\t\tif ( difference ) {\n\t\t\tresult = difference._getTransformedByInsertion( insertPosition!, howMany, common !== null || spread );\n\t\t} else {\n\t\t\tresult = [];\n\t\t}\n\n\t\tif ( common ) {\n\t\t\tconst transformedCommon = new Range(\n\t\t\t\tcommon.start._getCombined( moveRange.start, insertPosition! ),\n\t\t\t\tcommon.end._getCombined( moveRange.start, insertPosition! )\n\t\t\t);\n\n\t\t\tif ( result.length == 2 ) {\n\t\t\t\tresult.splice( 1, 0, transformedCommon );\n\t\t\t} else {\n\t\t\t\tresult.push( transformedCommon );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns a copy of this range that is transformed by deletion of `howMany` nodes from `deletePosition`.\n\t *\n\t * If the deleted range is intersecting with the transformed range, the transformed range will be shrank.\n\t *\n\t * If the deleted range contains transformed range, `null` will be returned.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} deletionPosition Position from which nodes are removed.\n\t * @param {Number} howMany How many nodes are removed.\n\t * @returns {module:engine/model/range~Range|null} Result of the transformation.\n\t */\n\tpublic _getTransformedByDeletion( deletePosition: Position, howMany: number ): Range | null {\n\t\tlet newStart = this.start._getTransformedByDeletion( deletePosition, howMany );\n\t\tlet newEnd = this.end._getTransformedByDeletion( deletePosition, howMany );\n\n\t\tif ( newStart == null && newEnd == null ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( newStart == null ) {\n\t\t\tnewStart = deletePosition;\n\t\t}\n\n\t\tif ( newEnd == null ) {\n\t\t\tnewEnd = deletePosition;\n\t\t}\n\n\t\treturn new Range( newStart, newEnd );\n\t}\n\n\t/**\n\t * Creates a new range, spreading from specified {@link module:engine/model/position~Position position} to a position moved by\n\t * given `shift`. If `shift` is a negative value, shifted position is treated as the beginning of the range.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/position~Position} position Beginning of the range.\n\t * @param {Number} shift How long the range should be.\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic static _createFromPositionAndShift( position: Position, shift: number ): Range {\n\t\tconst start = position;\n\t\tconst end = position.getShiftedBy( shift );\n\n\t\treturn shift > 0 ? new this( start, end ) : new this( end, start );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/model/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic static _createIn( element: Element | DocumentFragment ): Range {\n\t\treturn new this( Position._createAt( element, 0 ), Position._createAt( element, element.maxOffset ) );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/model/item~Item model item} and ends after it.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/item~Item} item\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic static _createOn( item: Item ): Range {\n\t\treturn this._createFromPositionAndShift( Position._createBefore( item ), item.offsetSize );\n\t}\n\n\t/**\n\t * Combines all ranges from the passed array into a one range. At least one range has to be passed.\n\t * Passed ranges must not have common parts.\n\t *\n\t * The first range from the array is a reference range. If other ranges start or end on the exactly same position where\n\t * the reference range, they get combined into one range.\n\t *\n\t *\t\t[  ][]  [    ][ ][             ][ ][]  [  ]  // Passed ranges, shown sorted\n\t *\t\t[    ]                                       // The result of the function if the first range was a reference range.\n\t *\t            [                           ]        // The result of the function if the third-to-seventh range was a reference range.\n\t *\t                                           [  ]  // The result of the function if the last range was a reference range.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {Array.<module:engine/model/range~Range>} ranges Ranges to combine.\n\t * @returns {module:engine/model/range~Range} Combined range.\n\t */\n\tpublic static _createFromRanges( ranges: Array<Range> ): Range {\n\t\tif ( ranges.length === 0 ) {\n\t\t\t/**\n\t\t\t * At least one range has to be passed to\n\t\t\t * {@link module:engine/model/range~Range._createFromRanges `Range._createFromRanges()`}.\n\t\t\t *\n\t\t\t * @error range-create-from-ranges-empty-array\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'range-create-from-ranges-empty-array',\n\t\t\t\tnull\n\t\t\t);\n\t\t} else if ( ranges.length == 1 ) {\n\t\t\treturn ranges[ 0 ].clone();\n\t\t}\n\n\t\t// 1. Set the first range in `ranges` array as a reference range.\n\t\t// If we are going to return just a one range, one of the ranges need to be the reference one.\n\t\t// Other ranges will be stuck to that range, if possible.\n\t\tconst ref = ranges[ 0 ];\n\n\t\t// 2. Sort all the ranges so it's easier to process them.\n\t\tranges.sort( ( a, b ) => {\n\t\t\treturn a.start.isAfter( b.start ) ? 1 : -1;\n\t\t} );\n\n\t\t// 3. Check at which index the reference range is now.\n\t\tconst refIndex = ranges.indexOf( ref );\n\n\t\t// 4. At this moment we don't need the original range.\n\t\t// We are going to modify the result and we need to return a new instance of Range.\n\t\t// We have to create a copy of the reference range.\n\t\tconst result = new this( ref.start, ref.end );\n\n\t\t// 5. Ranges should be checked and glued starting from the range that is closest to the reference range.\n\t\t// Since ranges are sorted, start with the range with index that is closest to reference range index.\n\t\tif ( refIndex > 0 ) {\n\t\t\t// eslint-disable-next-line no-constant-condition\n\t\t\tfor ( let i = refIndex - 1; true; i++ ) {\n\t\t\t\tif ( ranges[ i ].end.isEqual( result.start ) ) {\n\t\t\t\t\t( result as any ).start = Position._createAt( ranges[ i ].start );\n\t\t\t\t} else {\n\t\t\t\t\t// If ranges are not starting/ending at the same position there is no point in looking further.\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// 6. Ranges should be checked and glued starting from the range that is closest to the reference range.\n\t\t// Since ranges are sorted, start with the range with index that is closest to reference range index.\n\t\tfor ( let i = refIndex + 1; i < ranges.length; i++ ) {\n\t\t\tif ( ranges[ i ].start.isEqual( result.end ) ) {\n\t\t\t\t( result as any ).end = Position._createAt( ranges[ i ].end );\n\t\t\t} else {\n\t\t\t\t// If ranges are not starting/ending at the same position there is no point in looking further.\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Creates a `Range` instance from given plain object (i.e. parsed JSON string).\n\t *\n\t * @param {Object} json Plain object to be converted to `Range`.\n\t * @param {module:engine/model/document~Document} doc Document object that will be range owner.\n\t * @returns {module:engine/model/range~Range} `Range` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any, doc: Document ): Range {\n\t\treturn new this( Position.fromJSON( json.start, doc ), Position.fromJSON( json.end, doc ) );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `${ this.root } [ ${ this.start.path.join( ', ' ) } ] - [ ${ this.end.path.join( ', ' ) } ]`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelPosition: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\trange.is( 'range' ); // -> true\n *\t\trange.is( 'model:range' ); // -> true\n *\n *\t\trange.is( 'view:range' ); // -> false\n *\t\trange.is( 'documentSelection' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nRange.prototype.is = function( type: string ): boolean {\n\treturn type === 'range' || type === 'model:range';\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/mapper\n */\n\nimport ModelPosition from '../model/position';\nimport ModelRange from '../model/range';\n\nimport ViewPosition from '../view/position';\nimport ViewRange from '../view/range';\nimport ViewText from '../view/text';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type ViewElement from '../view/element';\nimport type ModelElement from '../model/element';\nimport type ModelDocumentFragment from '../model/documentfragment';\nimport type ViewNode from '../view/node';\n\n/**\n * Maps elements, positions and markers between the {@link module:engine/view/document~Document view} and\n * the {@link module:engine/model/model model}.\n *\n * The instance of the Mapper used for the editing pipeline is available in\n * {@link module:engine/controller/editingcontroller~EditingController#mapper `editor.editing.mapper`}.\n *\n * Mapper uses bound elements to find corresponding elements and positions, so, to get proper results,\n * all model elements should be {@link module:engine/conversion/mapper~Mapper#bindElements bound}.\n *\n * To map the complex model to/from view relations, you may provide custom callbacks for the\n * {@link module:engine/conversion/mapper~Mapper#event:modelToViewPosition modelToViewPosition event} and\n * {@link module:engine/conversion/mapper~Mapper#event:viewToModelPosition viewToModelPosition event} that are fired whenever\n * a position mapping request occurs.\n * Those events are fired by the {@link module:engine/conversion/mapper~Mapper#toViewPosition toViewPosition}\n * and {@link module:engine/conversion/mapper~Mapper#toModelPosition toModelPosition} methods. `Mapper` adds its own default callbacks\n * with `'lowest'` priority. To override default `Mapper` mapping, add custom callback with higher priority and\n * stop the event.\n * @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default class Mapper extends EmitterMixin() {\n\tprivate _modelToViewMapping: WeakMap<ModelElement | ModelDocumentFragment, ViewElement | ViewDocumentFragment>;\n\tprivate _viewToModelMapping: WeakMap<ViewElement | ViewDocumentFragment, ModelElement | ModelDocumentFragment>;\n\tprivate _viewToModelLengthCallbacks: Map<string, ( element: ViewElement ) => number>;\n\tprivate _markerNameToElements: Map<string, Set<ViewElement>>;\n\tprivate _elementToMarkerNames: Map<ViewElement, Set<string>>;\n\tprivate _deferredBindingRemovals: Map<ViewElement, ViewElement | ViewDocumentFragment>;\n\tprivate _unboundMarkerNames: Set<string>;\n\n\t/**\n\t * Creates an instance of the mapper.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\t/**\n\t\t * Model element to view element mapping.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakMap}\n\t\t */\n\t\tthis._modelToViewMapping = new WeakMap();\n\n\t\t/**\n\t\t * View element to model element mapping.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakMap}\n\t\t */\n\t\tthis._viewToModelMapping = new WeakMap();\n\n\t\t/**\n\t\t * A map containing callbacks between view element names and functions evaluating length of view elements\n\t\t * in model.\n\t\t *\n\t\t * @private\n\t\t * @member {Map}\n\t\t */\n\t\tthis._viewToModelLengthCallbacks = new Map();\n\n\t\t/**\n\t\t * Model marker name to view elements mapping.\n\t\t *\n\t\t * Keys are `String`s while values are `Set`s with {@link module:engine/view/element~Element view elements}.\n\t\t * One marker (name) can be mapped to multiple elements.\n\t\t *\n\t\t * @private\n\t\t * @member {Map}\n\t\t */\n\t\tthis._markerNameToElements = new Map();\n\n\t\t/**\n\t\t * View element to model marker names mapping.\n\t\t *\n\t\t * This is reverse to {@link ~Mapper#_markerNameToElements} map.\n\t\t *\n\t\t * @private\n\t\t * @member {Map}\n\t\t */\n\t\tthis._elementToMarkerNames = new Map();\n\n\t\t/**\n\t\t * The map of removed view elements with their current root (used for deferred unbinding).\n\t\t *\n\t\t * @private\n\t\t * @member {Map.<module:engine/view/element~Element,module:engine/view/documentfragment~DocumentFragment>}\n\t\t */\n\t\tthis._deferredBindingRemovals = new Map();\n\n\t\t/**\n\t\t * Stores marker names of markers which have changed due to unbinding a view element (so it is assumed that the view element\n\t\t * has been removed, moved or renamed).\n\t\t *\n\t\t * @private\n\t\t * @member {Set.<module:engine/model/markercollection~Marker>}\n\t\t */\n\t\tthis._unboundMarkerNames = new Set();\n\n\t\t// Default mapper algorithm for mapping model position to view position.\n\t\tthis.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', ( evt, data ) => {\n\t\t\tif ( data.viewPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst viewContainer = this._modelToViewMapping.get( data.modelPosition.parent as ModelElement );\n\n\t\t\tif ( !viewContainer ) {\n\t\t\t\t/**\n\t\t\t\t * A model position could not be mapped to the view because the parent of the model position\n\t\t\t\t * does not have a mapped view element (might have not been converted yet or it has no converter).\n\t\t\t\t *\n\t\t\t\t * Make sure that the model element is correctly converted to the view.\n\t\t\t\t *\n\t\t\t\t * @error mapping-model-position-view-parent-not-found\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'mapping-model-position-view-parent-not-found', this, { modelPosition: data.modelPosition } );\n\t\t\t}\n\n\t\t\tdata.viewPosition = this.findPositionIn( viewContainer, data.modelPosition.offset );\n\t\t}, { priority: 'low' } );\n\n\t\t// Default mapper algorithm for mapping view position to model position.\n\t\tthis.on<MapperViewToModelPositionEvent>( 'viewToModelPosition', ( evt, data ) => {\n\t\t\tif ( data.modelPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst viewBlock = this.findMappedViewAncestor( data.viewPosition );\n\t\t\tconst modelParent = this._viewToModelMapping.get( viewBlock );\n\t\t\tconst modelOffset = this._toModelOffset( data.viewPosition.parent as ViewElement, data.viewPosition.offset, viewBlock );\n\n\t\t\tdata.modelPosition = ModelPosition._createAt( modelParent!, modelOffset );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Marks model and view elements as corresponding. Corresponding elements can be retrieved by using\n\t * the {@link module:engine/conversion/mapper~Mapper#toModelElement toModelElement} and\n\t * {@link module:engine/conversion/mapper~Mapper#toViewElement toViewElement} methods.\n\t * The information that elements are bound is also used to translate positions.\n\t *\n\t * @param {module:engine/model/element~Element} modelElement Model element.\n\t * @param {module:engine/view/element~Element} viewElement View element.\n\t */\n\tpublic bindElements(\n\t\tmodelElement: ModelElement | ModelDocumentFragment,\n\t\tviewElement: ViewElement | ViewDocumentFragment\n\t): void {\n\t\tthis._modelToViewMapping.set( modelElement, viewElement );\n\t\tthis._viewToModelMapping.set( viewElement, modelElement );\n\t}\n\n\t/**\n\t * Unbinds the given {@link module:engine/view/element~Element view element} from the map.\n\t *\n\t * **Note:** view-to-model binding will be removed, if it existed. However, corresponding model-to-view binding\n\t * will be removed only if model element is still bound to the passed `viewElement`.\n\t *\n\t * This behavior allows for re-binding model element to another view element without fear of losing the new binding\n\t * when the previously bound view element is unbound.\n\t *\n\t * @param {module:engine/view/element~Element} viewElement View element to unbind.\n\t * @param {Object} [options={}] The options object.\n\t * @param {Boolean} [options.defer=false] Controls whether the binding should be removed immediately or deferred until a\n\t * {@link #flushDeferredBindings `flushDeferredBindings()`} call.\n\t */\n\tpublic unbindViewElement(\n\t\tviewElement: ViewElement,\n\t\toptions: { defer?: boolean } = {}\n\t): void {\n\t\tconst modelElement = this.toModelElement( viewElement )!;\n\n\t\tif ( this._elementToMarkerNames.has( viewElement ) ) {\n\t\t\tfor ( const markerName of this._elementToMarkerNames.get( viewElement )! ) {\n\t\t\t\tthis._unboundMarkerNames.add( markerName );\n\t\t\t}\n\t\t}\n\n\t\tif ( options.defer ) {\n\t\t\tthis._deferredBindingRemovals.set( viewElement, viewElement.root );\n\t\t} else {\n\t\t\tthis._viewToModelMapping.delete( viewElement );\n\n\t\t\tif ( this._modelToViewMapping.get( modelElement ) == viewElement ) {\n\t\t\t\tthis._modelToViewMapping.delete( modelElement );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Unbinds the given {@link module:engine/model/element~Element model element} from the map.\n\t *\n\t * **Note:** the model-to-view binding will be removed, if it existed. However, the corresponding view-to-model binding\n\t * will be removed only if the view element is still bound to the passed `modelElement`.\n\t *\n\t * This behavior lets for re-binding view element to another model element without fear of losing the new binding\n\t * when the previously bound model element is unbound.\n\t *\n\t * @param {module:engine/model/element~Element} modelElement Model element to unbind.\n\t */\n\tpublic unbindModelElement( modelElement: ModelElement ): void {\n\t\tconst viewElement = this.toViewElement( modelElement )!;\n\n\t\tthis._modelToViewMapping.delete( modelElement );\n\n\t\tif ( this._viewToModelMapping.get( viewElement ) == modelElement ) {\n\t\t\tthis._viewToModelMapping.delete( viewElement );\n\t\t}\n\t}\n\n\t/**\n\t * Binds the given marker name with the given {@link module:engine/view/element~Element view element}. The element\n\t * will be added to the current set of elements bound with the given marker name.\n\t *\n\t * @param {module:engine/view/element~Element} element Element to bind.\n\t * @param {String} name Marker name.\n\t */\n\tpublic bindElementToMarker( element: ViewElement, name: string ): void {\n\t\tconst elements = this._markerNameToElements.get( name ) || new Set();\n\t\telements.add( element );\n\n\t\tconst names = this._elementToMarkerNames.get( element ) || new Set();\n\t\tnames.add( name );\n\n\t\tthis._markerNameToElements.set( name, elements );\n\t\tthis._elementToMarkerNames.set( element, names );\n\t}\n\n\t/**\n\t * Unbinds an element from given marker name.\n\t *\n\t * @param {module:engine/view/element~Element} element Element to unbind.\n\t * @param {String} name Marker name.\n\t */\n\tpublic unbindElementFromMarkerName( element: ViewElement, name: string ): void {\n\t\tconst nameToElements = this._markerNameToElements.get( name );\n\n\t\tif ( nameToElements ) {\n\t\t\tnameToElements.delete( element );\n\n\t\t\tif ( nameToElements.size == 0 ) {\n\t\t\t\tthis._markerNameToElements.delete( name );\n\t\t\t}\n\t\t}\n\n\t\tconst elementToNames = this._elementToMarkerNames.get( element );\n\n\t\tif ( elementToNames ) {\n\t\t\telementToNames.delete( name );\n\n\t\t\tif ( elementToNames.size == 0 ) {\n\t\t\t\tthis._elementToMarkerNames.delete( element );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns all marker names of markers which have changed due to unbinding a view element (so it is assumed that the view element\n\t * has been removed, moved or renamed) since the last flush. After returning, the marker names list is cleared.\n\t *\n\t * @returns {Array.<String>}\n\t */\n\tpublic flushUnboundMarkerNames(): Array<string> {\n\t\tconst markerNames = Array.from( this._unboundMarkerNames );\n\n\t\tthis._unboundMarkerNames.clear();\n\n\t\treturn markerNames;\n\t}\n\n\t/**\n\t * Unbinds all deferred binding removals of view elements that in the meantime were not re-attached to some root or document fragment.\n\t *\n\t * See: {@link #unbindViewElement `unbindViewElement()`}.\n\t */\n\tpublic flushDeferredBindings(): void {\n\t\tfor ( const [ viewElement, root ] of this._deferredBindingRemovals ) {\n\t\t\t// Unbind it only if it wasn't re-attached to some root or document fragment.\n\t\t\tif ( viewElement.root == root ) {\n\t\t\t\tthis.unbindViewElement( viewElement );\n\t\t\t}\n\t\t}\n\n\t\tthis._deferredBindingRemovals = new Map();\n\t}\n\n\t/**\n\t * Removes all model to view and view to model bindings.\n\t */\n\tpublic clearBindings(): void {\n\t\tthis._modelToViewMapping = new WeakMap();\n\t\tthis._viewToModelMapping = new WeakMap();\n\t\tthis._markerNameToElements = new Map();\n\t\tthis._elementToMarkerNames = new Map();\n\t\tthis._unboundMarkerNames = new Set();\n\t\tthis._deferredBindingRemovals = new Map();\n\t}\n\n\t/**\n\t * Gets the corresponding model element.\n\t *\n\t * **Note:** {@link module:engine/view/uielement~UIElement} does not have corresponding element in model.\n\t *\n\t * @param {module:engine/view/element~Element} viewElement View element.\n\t * @returns {module:engine/model/element~Element|undefined} Corresponding model element or `undefined` if not found.\n\t */\n\tpublic toModelElement( viewElement: ViewElement ): ModelElement | undefined;\n\tpublic toModelElement( viewDocumentFragment: ViewDocumentFragment ): ModelDocumentFragment | undefined;\n\tpublic toModelElement( viewElement: ViewElement | ViewDocumentFragment ): ModelElement | ModelDocumentFragment | undefined {\n\t\treturn this._viewToModelMapping.get( viewElement );\n\t}\n\n\t/**\n\t * Gets the corresponding view element.\n\t *\n\t * @param {module:engine/model/element~Element} modelElement Model element.\n\t * @returns {module:engine/view/element~Element|undefined} Corresponding view element or `undefined` if not found.\n\t */\n\tpublic toViewElement( modelElement: ModelElement ): ViewElement | undefined;\n\tpublic toViewElement( modelDocumentFragment: ModelDocumentFragment ): ViewDocumentFragment | undefined;\n\tpublic toViewElement( modelElement: ModelElement | ModelDocumentFragment ): ViewElement | ViewDocumentFragment | undefined {\n\t\treturn this._modelToViewMapping.get( modelElement );\n\t}\n\n\t/**\n\t * Gets the corresponding model range.\n\t *\n\t * @param {module:engine/view/range~Range} viewRange View range.\n\t * @returns {module:engine/model/range~Range} Corresponding model range.\n\t */\n\tpublic toModelRange( viewRange: ViewRange ): ModelRange {\n\t\treturn new ModelRange( this.toModelPosition( viewRange.start ), this.toModelPosition( viewRange.end ) );\n\t}\n\n\t/**\n\t * Gets the corresponding view range.\n\t *\n\t * @param {module:engine/model/range~Range} modelRange Model range.\n\t * @returns {module:engine/view/range~Range} Corresponding view range.\n\t */\n\tpublic toViewRange( modelRange: ModelRange ): ViewRange {\n\t\treturn new ViewRange( this.toViewPosition( modelRange.start ), this.toViewPosition( modelRange.end ) );\n\t}\n\n\t/**\n\t * Gets the corresponding model position.\n\t *\n\t * @fires viewToModelPosition\n\t * @param {module:engine/view/position~Position} viewPosition View position.\n\t * @returns {module:engine/model/position~Position} Corresponding model position.\n\t */\n\tpublic toModelPosition( viewPosition: ViewPosition ): ModelPosition {\n\t\tconst data: MapperViewToModelPositionEvent[ 'args' ][ 0 ] = {\n\t\t\tviewPosition,\n\t\t\tmapper: this\n\t\t};\n\n\t\tthis.fire<MapperViewToModelPositionEvent>( 'viewToModelPosition', data );\n\n\t\treturn data.modelPosition!;\n\t}\n\n\t/**\n\t * Gets the corresponding view position.\n\t *\n\t * @fires modelToViewPosition\n\t * @param {module:engine/model/position~Position} modelPosition Model position.\n\t * @param {Object} [options] Additional options for position mapping process.\n\t * @param {Boolean} [options.isPhantom=false] Should be set to `true` if the model position to map is pointing to a place\n\t * in model tree which no longer exists. For example, it could be an end of a removed model range.\n\t * @returns {module:engine/view/position~Position} Corresponding view position.\n\t */\n\tpublic toViewPosition(\n\t\tmodelPosition: ModelPosition,\n\t\toptions: { isPhantom?: boolean } = {}\n\t): ViewPosition {\n\t\tconst data: MapperModelToViewPositionEvent[ 'args' ][ 0 ] = {\n\t\t\tmodelPosition,\n\t\t\tmapper: this,\n\t\t\tisPhantom: options.isPhantom\n\t\t};\n\n\t\tthis.fire<MapperModelToViewPositionEvent>( 'modelToViewPosition', data );\n\n\t\treturn data.viewPosition!;\n\t}\n\n\t/**\n\t * Gets all view elements bound to the given marker name.\n\t *\n\t * @param {String} name Marker name.\n\t * @returns {Set.<module:engine/view/element~Element>|null} View elements bound with the given marker name or `null`\n\t * if no elements are bound to the given marker name.\n\t */\n\tpublic markerNameToElements( name: string ): Set<ViewElement> | null {\n\t\tconst boundElements = this._markerNameToElements.get( name );\n\n\t\tif ( !boundElements ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst elements = new Set<ViewElement>();\n\n\t\tfor ( const element of boundElements ) {\n\t\t\tif ( element.is( 'attributeElement' ) ) {\n\t\t\t\tfor ( const clone of element.getElementsWithSameId() ) {\n\t\t\t\t\telements.add( clone );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\telements.add( element );\n\t\t\t}\n\t\t}\n\n\t\treturn elements;\n\t}\n\n\t/**\n\t * Registers a callback that evaluates the length in the model of a view element with the given name.\n\t *\n\t * The callback is fired with one argument, which is a view element instance. The callback is expected to return\n\t * a number representing the length of the view element in the model.\n\t *\n\t *\t\t// List item in view may contain nested list, which have other list items. In model though,\n\t *\t\t// the lists are represented by flat structure. Because of those differences, length of list view element\n\t *\t\t// may be greater than one. In the callback it's checked how many nested list items are in evaluated list item.\n\t *\n\t *\t\tfunction getViewListItemLength( element ) {\n\t *\t\t\tlet length = 1;\n\t *\n\t *\t\t\tfor ( let child of element.getChildren() ) {\n\t *\t\t\t\tif ( child.name == 'ul' || child.name == 'ol' ) {\n\t *\t\t\t\t\tfor ( let item of child.getChildren() ) {\n\t *\t\t\t\t\t\tlength += getViewListItemLength( item );\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\n\t *\t\t\treturn length;\n\t *\t\t}\n\t *\n\t *\t\tmapper.registerViewToModelLength( 'li', getViewListItemLength );\n\t *\n\t * @param {String} viewElementName Name of view element for which callback is registered.\n\t * @param {Function} lengthCallback Function return a length of view element instance in model.\n\t */\n\tpublic registerViewToModelLength(\n\t\tviewElementName: string,\n\t\tlengthCallback: ( element: ViewElement ) => number\n\t): void {\n\t\tthis._viewToModelLengthCallbacks.set( viewElementName, lengthCallback );\n\t}\n\n\t/**\n\t * For the given `viewPosition`, finds and returns the closest ancestor of this position that has a mapping to\n\t * the model.\n\t *\n\t * @param {module:engine/view/position~Position} viewPosition Position for which a mapped ancestor should be found.\n\t * @returns {module:engine/view/element~Element}\n\t */\n\tpublic findMappedViewAncestor( viewPosition: ViewPosition ): ViewElement {\n\t\tlet parent: any = viewPosition.parent;\n\n\t\twhile ( !this._viewToModelMapping.has( parent ) ) {\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn parent;\n\t}\n\n\t/**\n\t * Calculates model offset based on the view position and the block element.\n\t *\n\t * Example:\n\t *\n\t *\t\t<p>foo<b>ba|r</b></p> // _toModelOffset( b, 2, p ) -> 5\n\t *\n\t * Is a sum of:\n\t *\n\t *\t\t<p>foo|<b>bar</b></p> // _toModelOffset( p, 3, p ) -> 3\n\t *\t\t<p>foo<b>ba|r</b></p> // _toModelOffset( b, 2, b ) -> 2\n\t *\n\t * @private\n\t * @param {module:engine/view/element~Element} viewParent Position parent.\n\t * @param {Number} viewOffset Position offset.\n\t * @param {module:engine/view/element~Element} viewBlock Block used as a base to calculate offset.\n\t * @returns {Number} Offset in the model.\n\t */\n\tprivate _toModelOffset(\n\t\tviewParent: ViewElement,\n\t\tviewOffset: number,\n\t\tviewBlock: ViewElement\n\t): number {\n\t\tif ( viewBlock != viewParent ) {\n\t\t\t// See example.\n\t\t\tconst offsetToParentStart = this._toModelOffset( viewParent.parent as any, viewParent.index!, viewBlock );\n\t\t\tconst offsetInParent = this._toModelOffset( viewParent, viewOffset, viewParent );\n\n\t\t\treturn offsetToParentStart + offsetInParent;\n\t\t}\n\n\t\t// viewBlock == viewParent, so we need to calculate the offset in the parent element.\n\n\t\t// If the position is a text it is simple (\"ba|r\" -> 2).\n\t\tif ( viewParent.is( '$text' ) ) {\n\t\t\treturn viewOffset;\n\t\t}\n\n\t\t// If the position is in an element we need to sum lengths of siblings ( <b> bar </b> foo | -> 3 + 3 = 6 ).\n\t\tlet modelOffset = 0;\n\n\t\tfor ( let i = 0; i < viewOffset; i++ ) {\n\t\t\tmodelOffset += this.getModelLength( viewParent.getChild( i ) as any );\n\t\t}\n\n\t\treturn modelOffset;\n\t}\n\n\t/**\n\t * Gets the length of the view element in the model.\n\t *\n\t * The length is calculated as follows:\n\t * * if a {@link #registerViewToModelLength length mapping callback} is provided for the given `viewNode`, it is used to\n\t * evaluate the model length (`viewNode` is used as first and only parameter passed to the callback),\n\t * * length of a {@link module:engine/view/text~Text text node} is equal to the length of its\n\t * {@link module:engine/view/text~Text#data data},\n\t * * length of a {@link module:engine/view/uielement~UIElement ui element} is equal to 0,\n\t * * length of a mapped {@link module:engine/view/element~Element element} is equal to 1,\n\t * * length of a non-mapped {@link module:engine/view/element~Element element} is equal to the length of its children.\n\t *\n\t * Examples:\n\t *\n\t *\t\tfoo                          -> 3 // Text length is equal to its data length.\n\t *\t\t<p>foo</p>                   -> 1 // Length of an element which is mapped is by default equal to 1.\n\t *\t\t<b>foo</b>                   -> 3 // Length of an element which is not mapped is a length of its children.\n\t *\t\t<div><p>x</p><p>y</p></div>  -> 2 // Assuming that <div> is not mapped and <p> are mapped.\n\t *\n\t * @param {module:engine/view/element~Element} viewNode View node.\n\t * @returns {Number} Length of the node in the tree model.\n\t */\n\tpublic getModelLength( viewNode: ViewNode ): number {\n\t\tif ( this._viewToModelLengthCallbacks.get( ( viewNode as any ).name ) ) {\n\t\t\tconst callback = this._viewToModelLengthCallbacks.get( ( viewNode as any ).name )!;\n\n\t\t\treturn callback( viewNode as ViewElement );\n\t\t} else if ( this._viewToModelMapping.has( viewNode as ViewElement ) ) {\n\t\t\treturn 1;\n\t\t} else if ( viewNode.is( '$text' ) ) {\n\t\t\treturn viewNode.data.length;\n\t\t} else if ( viewNode.is( 'uiElement' ) ) {\n\t\t\treturn 0;\n\t\t} else {\n\t\t\tlet len = 0;\n\n\t\t\tfor ( const child of ( viewNode as ViewElement ).getChildren() ) {\n\t\t\t\tlen += this.getModelLength( child );\n\t\t\t}\n\n\t\t\treturn len;\n\t\t}\n\t}\n\n\t/**\n\t * Finds the position in the view node (or in its children) with the expected model offset.\n\t *\n\t * Example:\n\t *\n\t *\t\t<p>fo<b>bar</b>bom</p> -> expected offset: 4\n\t *\n\t *\t\tfindPositionIn( p, 4 ):\n\t *\t\t<p>|fo<b>bar</b>bom</p> -> expected offset: 4, actual offset: 0\n\t *\t\t<p>fo|<b>bar</b>bom</p> -> expected offset: 4, actual offset: 2\n\t *\t\t<p>fo<b>bar</b>|bom</p> -> expected offset: 4, actual offset: 5 -> we are too far\n\t *\n\t *\t\tfindPositionIn( b, 4 - ( 5 - 3 ) ):\n\t *\t\t<p>fo<b>|bar</b>bom</p> -> expected offset: 2, actual offset: 0\n\t *\t\t<p>fo<b>bar|</b>bom</p> -> expected offset: 2, actual offset: 3 -> we are too far\n\t *\n\t *\t\tfindPositionIn( bar, 2 - ( 3 - 3 ) ):\n\t *\t\tWe are in the text node so we can simple find the offset.\n\t *\t\t<p>fo<b>ba|r</b>bom</p> -> expected offset: 2, actual offset: 2 -> position found\n\t *\n\t * @param {module:engine/view/element~Element} viewParent Tree view element in which we are looking for the position.\n\t * @param {Number} expectedOffset Expected offset.\n\t * @returns {module:engine/view/position~Position} Found position.\n\t */\n\tpublic findPositionIn( viewParent: ViewNode | ViewDocumentFragment, expectedOffset: number ): ViewPosition {\n\t\t// Last scanned view node.\n\t\tlet viewNode: ViewNode;\n\t\t// Length of the last scanned view node.\n\t\tlet lastLength = 0;\n\n\t\tlet modelOffset = 0;\n\t\tlet viewOffset = 0;\n\n\t\t// In the text node it is simple: the offset in the model equals the offset in the text.\n\t\tif ( viewParent.is( '$text' ) ) {\n\t\t\treturn new ViewPosition( viewParent, expectedOffset );\n\t\t}\n\n\t\t// In other cases we add lengths of child nodes to find the proper offset.\n\n\t\t// If it is smaller we add the length.\n\t\twhile ( modelOffset < expectedOffset ) {\n\t\t\tviewNode = ( viewParent as ViewElement | ViewDocumentFragment ).getChild( viewOffset )!;\n\t\t\tlastLength = this.getModelLength( viewNode );\n\t\t\tmodelOffset += lastLength;\n\t\t\tviewOffset++;\n\t\t}\n\n\t\t// If it equals we found the position.\n\t\tif ( modelOffset == expectedOffset ) {\n\t\t\treturn this._moveViewPositionToTextNode( new ViewPosition( viewParent, viewOffset ) );\n\t\t}\n\t\t// If it is higher we need to enter last child.\n\t\telse {\n\t\t\t// ( modelOffset - lastLength ) is the offset to the child we enter,\n\t\t\t// so we subtract it from the expected offset to fine the offset in the child.\n\t\t\treturn this.findPositionIn( viewNode!, expectedOffset - ( modelOffset - lastLength ) );\n\t\t}\n\t}\n\n\t/**\n\t * Because we prefer positions in the text nodes over positions next to text nodes, if the view position was next to a text node,\n\t * it moves it into the text node instead.\n\t *\n\t *\t\t<p>[]<b>foo</b></p> -> <p>[]<b>foo</b></p> // do not touch if position is not directly next to text\n\t *\t\t<p>foo[]<b>foo</b></p> -> <p>foo{}<b>foo</b></p> // move to text node\n\t *\t\t<p><b>[]foo</b></p> -> <p><b>{}foo</b></p> // move to text node\n\t *\n\t * @private\n\t * @param {module:engine/view/position~Position} viewPosition Position potentially next to the text node.\n\t * @returns {module:engine/view/position~Position} Position in the text node if possible.\n\t */\n\tprivate _moveViewPositionToTextNode( viewPosition: ViewPosition ): ViewPosition {\n\t\t// If the position is just after a text node, put it at the end of that text node.\n\t\t// If the position is just before a text node, put it at the beginning of that text node.\n\t\tconst nodeBefore = viewPosition.nodeBefore;\n\t\tconst nodeAfter = viewPosition.nodeAfter;\n\n\t\tif ( nodeBefore instanceof ViewText ) {\n\t\t\treturn new ViewPosition( nodeBefore, nodeBefore.data.length );\n\t\t} else if ( nodeAfter instanceof ViewText ) {\n\t\t\treturn new ViewPosition( nodeAfter, 0 );\n\t\t}\n\n\t\t// Otherwise, just return the given position.\n\t\treturn viewPosition;\n\t}\n\n\t/**\n\t * Fired for each model-to-view position mapping request. The purpose of this event is to enable custom model-to-view position\n\t * mapping. Callbacks added to this event take {@link module:engine/model/position~Position model position} and are expected to\n\t * calculate the {@link module:engine/view/position~Position view position}. The calculated view position should be added as\n\t * a `viewPosition` value in the `data` object that is passed as one of parameters to the event callback.\n\t *\n\t * \t\t// Assume that \"captionedImage\" model element is converted to <img> and following <span> elements in view,\n\t * \t\t// and the model element is bound to <img> element. Force mapping model positions inside \"captionedImage\" to that\n\t * \t\t// <span> element.\n\t *\t\tmapper.on( 'modelToViewPosition', ( evt, data ) => {\n\t *\t\t\tconst positionParent = modelPosition.parent;\n\t *\n\t *\t\t\tif ( positionParent.name == 'captionedImage' ) {\n\t *\t\t\t\tconst viewImg = data.mapper.toViewElement( positionParent );\n\t *\t\t\t\tconst viewCaption = viewImg.nextSibling; // The <span> element.\n\t *\n\t *\t\t\t\tdata.viewPosition = new ViewPosition( viewCaption, modelPosition.offset );\n\t *\n\t *\t\t\t\t// Stop the event if other callbacks should not modify calculated value.\n\t *\t\t\t\tevt.stop();\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * **Note:** keep in mind that sometimes a \"phantom\" model position is being converted. A \"phantom\" model position is\n\t * a position that points to a nonexistent place in model. Such a position might still be valid for conversion, though\n\t * (it would point to a correct place in the view when converted). One example of such a situation is when a range is\n\t * removed from the model, there may be a need to map the range's end (which is no longer a valid model position). To\n\t * handle such situations, check the `data.isPhantom` flag:\n\t *\n\t * \t\t// Assume that there is a \"customElement\" model element and whenever the position is before it,\n\t * \t\t// we want to move it to the inside of the view element bound to \"customElement\".\n\t *\t\tmapper.on( 'modelToViewPosition', ( evt, data ) => {\n\t *\t\t\tif ( data.isPhantom ) {\n\t *\t\t\t\treturn;\n\t *\t\t\t}\n\t *\n\t *\t\t\t// Below line might crash for phantom position that does not exist in model.\n\t *\t\t\tconst sibling = data.modelPosition.nodeBefore;\n\t *\n\t *\t\t\t// Check if this is the element we are interested in.\n\t *\t\t\tif ( !sibling.is( 'element', 'customElement' ) ) {\n\t *\t\t\t\treturn;\n\t *\t\t\t}\n\t *\n\t *\t\t\tconst viewElement = data.mapper.toViewElement( sibling );\n\t *\n\t *\t\t\tdata.viewPosition = new ViewPosition( sibling, 0 );\n\t *\n\t *\t\t\tevt.stop();\n\t *\t\t} );\n\t *\n\t * **Note:** the default mapping callback is provided with a `low` priority setting and does not cancel the event, so it is possible to\n\t * attach a custom callback after a default callback and also use `data.viewPosition` calculated by the default callback\n\t * (for example to fix it).\n\t *\n\t * **Note:** the default mapping callback will not fire if `data.viewPosition` is already set.\n\t *\n\t * **Note:** these callbacks are called **very often**. For efficiency reasons, it is advised to use them only when position\n\t * mapping between the given model and view elements is unsolvable by using just elements mapping and default algorithm.\n\t * Also, the condition that checks if a special case scenario happened should be as simple as possible.\n\t *\n\t * @event modelToViewPosition\n\t * @param {Object} data Data pipeline object that can store and pass data between callbacks. The callback should add\n\t * the `viewPosition` value to that object with calculated the {@link module:engine/view/position~Position view position}.\n\t * @param {module:engine/conversion/mapper~Mapper} data.mapper Mapper instance that fired the event.\n\t */\n\n\t/**\n\t * Fired for each view-to-model position mapping request. See {@link module:engine/conversion/mapper~Mapper#event:modelToViewPosition}.\n\t *\n\t * \t\t// See example in `modelToViewPosition` event description.\n\t * \t\t// This custom mapping will map positions from <span> element next to <img> to the \"captionedImage\" element.\n\t *\t\tmapper.on( 'viewToModelPosition', ( evt, data ) => {\n\t *\t\t\tconst positionParent = viewPosition.parent;\n\t *\n\t *\t\t\tif ( positionParent.hasClass( 'image-caption' ) ) {\n\t *\t\t\t\tconst viewImg = positionParent.previousSibling;\n\t *\t\t\t\tconst modelImg = data.mapper.toModelElement( viewImg );\n\t *\n\t *\t\t\t\tdata.modelPosition = new ModelPosition( modelImg, viewPosition.offset );\n\t *\t\t\t\tevt.stop();\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * **Note:** the default mapping callback is provided with a `low` priority setting and does not cancel the event, so it is possible to\n\t * attach a custom callback after the default callback and also use `data.modelPosition` calculated by the default callback\n\t * (for example to fix it).\n\t *\n\t * **Note:** the default mapping callback will not fire if `data.modelPosition` is already set.\n\t *\n\t * **Note:** these callbacks are called **very often**. For efficiency reasons, it is advised to use them only when position\n\t * mapping between the given model and view elements is unsolvable by using just elements mapping and default algorithm.\n\t * Also, the condition that checks if special case scenario happened should be as simple as possible.\n\t *\n\t * @event viewToModelPosition\n\t * @param {Object} data Data pipeline object that can store and pass data between callbacks. The callback should add\n\t * `modelPosition` value to that object with calculated {@link module:engine/model/position~Position model position}.\n\t * @param {module:engine/conversion/mapper~Mapper} data.mapper Mapper instance that fired the event.\n\t */\n}\n\nexport type MapperModelToViewPositionEvent = {\n\tname: 'modelToViewPosition';\n\targs: [ {\n\t\tmapper: Mapper;\n\t\tmodelPosition: ModelPosition;\n\t\tviewPosition?: ViewPosition;\n\t\tisPhantom?: boolean;\n\t} ];\n};\n\nexport type MapperViewToModelPositionEvent = {\n\tname: 'viewToModelPosition';\n\targs: [ {\n\t\tmapper: Mapper;\n\t\tmodelPosition?: ModelPosition;\n\t\tviewPosition: ViewPosition;\n\t} ];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/modelconsumable\n */\n\nimport TextProxy from '../model/textproxy';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Item from '../model/item';\nimport type Selection from '../model/selection';\nimport type DocumentSelection from '../model/documentselection';\nimport type Range from '../model/range';\n\n/**\n * Manages a list of consumable values for the {@link module:engine/model/item~Item model items}.\n *\n * Consumables are various aspects of the model. A model item can be broken down into separate, single properties that might be\n * taken into consideration when converting that item.\n *\n * `ModelConsumable` is used by {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} while analyzing the changed\n * parts of {@link module:engine/model/document~Document the document}. The added / changed / removed model items are broken down\n * into singular properties (the item itself and its attributes). All those parts are saved in `ModelConsumable`. Then,\n * during conversion, when the given part of a model item is converted (i.e. the view element has been inserted into the view,\n * but without attributes), the consumable value is removed from `ModelConsumable`.\n *\n * For model items, `ModelConsumable` stores consumable values of one of following types: `insert`, `addattribute:<attributeKey>`,\n * `changeattributes:<attributeKey>`, `removeattributes:<attributeKey>`.\n *\n * In most cases, it is enough to let th {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}\n * gather consumable values, so there is no need to use\n * the {@link module:engine/conversion/modelconsumable~ModelConsumable#add add method} directly.\n * However, it is important to understand how consumable values can be\n * {@link module:engine/conversion/modelconsumable~ModelConsumable#consume consumed}.\n * See {@link module:engine/conversion/downcasthelpers default downcast converters} for more information.\n *\n * Keep in mind that one conversion event may have multiple callbacks (converters) attached to it. Each of those is\n * able to convert one or more parts of the model. However, when one of those callbacks actually converts\n * something, the others should not, because they would duplicate the results. Using `ModelConsumable` helps to avoid\n * this situation, because callbacks should only convert these values that were not yet consumed from `ModelConsumable`.\n *\n * Consuming multiple values in a single callback:\n *\n *\t\t// Converter for custom `imageBlock` element that might have a `caption` element inside which changes\n *\t\t// how the image is displayed in the view:\n *\t\t//\n *\t\t// Model:\n *\t\t//\n *\t\t// [imageBlock]\n *\t\t//   └─ [caption]\n *\t\t//       └─ foo\n *\t\t//\n *\t\t// View:\n *\t\t//\n *\t\t// <figure>\n *\t\t//   ├─ <img />\n *\t\t//   └─ <caption>\n *\t\t//       └─ foo\n *\t\tmodelConversionDispatcher.on( 'insert:imageBlock', ( evt, data, conversionApi ) => {\n *\t\t\t// First, consume the `imageBlock` element.\n *\t\t\tconversionApi.consumable.consume( data.item, 'insert' );\n *\n *\t\t\t// Just create normal image element for the view.\n *\t\t\t// Maybe it will be \"decorated\" later.\n *\t\t\tconst viewImage = new ViewElement( 'img' );\n *\t\t\tconst insertPosition = conversionApi.mapper.toViewPosition( data.range.start );\n *\t\t\tconst viewWriter = conversionApi.writer;\n *\n *\t\t\t// Check if the `imageBlock` element has children.\n *\t\t\tif ( data.item.childCount > 0 ) {\n *\t\t\t\tconst modelCaption = data.item.getChild( 0 );\n *\n *\t\t\t\t// `modelCaption` insertion change is consumed from consumable values.\n *\t\t\t\t// It will not be converted by other converters, but it's children (probably some text) will be.\n *\t\t\t\t// Through mapping, converters for text will know where to insert contents of `modelCaption`.\n *\t\t\t\tif ( conversionApi.consumable.consume( modelCaption, 'insert' ) ) {\n *\t\t\t\t\tconst viewCaption = new ViewElement( 'figcaption' );\n *\n *\t\t\t\t\tconst viewImageHolder = new ViewElement( 'figure', null, [ viewImage, viewCaption ] );\n *\n *\t\t\t\t\tconversionApi.mapper.bindElements( modelCaption, viewCaption );\n *\t\t\t\t\tconversionApi.mapper.bindElements( data.item, viewImageHolder );\n *\t\t\t\t\tviewWriter.insert( insertPosition, viewImageHolder );\n *\t\t\t\t}\n *\t\t\t} else {\n *\t\t\t\tconversionApi.mapper.bindElements( data.item, viewImage );\n *\t\t\t\tviewWriter.insert( insertPosition, viewImage );\n *\t\t\t}\n *\n *\t\t\tevt.stop();\n *\t\t} );\n */\nexport default class ModelConsumable {\n\tprivate _consumable: Map<any, Map<string, boolean>>;\n\tprivate _textProxyRegistry: Map<number | null, Map<number | null, Map<unknown, symbol>>>;\n\n\t/**\n\t * Creates an empty consumables list.\n\t */\n\tconstructor() {\n\t\t/**\n\t\t * Contains list of consumable values.\n\t\t *\n\t\t * @private\n\t\t * @member {Map} module:engine/conversion/modelconsumable~ModelConsumable#_consumable\n\t\t */\n\t\tthis._consumable = new Map();\n\n\t\t/**\n\t\t * For each {@link module:engine/model/textproxy~TextProxy} added to `ModelConsumable`, this registry holds a parent\n\t\t * of that `TextProxy` and the start and end indices of that `TextProxy`. This allows identification of the `TextProxy`\n\t\t * instances that point to the same part of the model but are different instances. Each distinct `TextProxy`\n\t\t * is given a unique `Symbol` which is then registered as consumable. This process is transparent for the `ModelConsumable`\n\t\t * API user because whenever `TextProxy` is added, tested, consumed or reverted, the internal mechanisms of\n\t\t * `ModelConsumable` translate `TextProxy` to that unique `Symbol`.\n\t\t *\n\t\t * @private\n\t\t * @member {Map} module:engine/conversion/modelconsumable~ModelConsumable#_textProxyRegistry\n\t\t */\n\t\tthis._textProxyRegistry = new Map();\n\t}\n\n\t/**\n\t * Adds a consumable value to the consumables list and links it with a given model item.\n\t *\n\t *\t\tmodelConsumable.add( modelElement, 'insert' ); // Add `modelElement` insertion change to consumable values.\n\t *\t\tmodelConsumable.add( modelElement, 'addAttribute:bold' ); // Add `bold` attribute insertion on `modelElement` change.\n\t *\t\tmodelConsumable.add( modelElement, 'removeAttribute:bold' ); // Add `bold` attribute removal on `modelElement` change.\n\t *\t\tmodelConsumable.add( modelSelection, 'selection' ); // Add `modelSelection` to consumable values.\n\t *\t\tmodelConsumable.add( modelRange, 'range' ); // Add `modelRange` to consumable values.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/selection~Selection|module:engine/model/range~Range} item\n\t * Model item, range or selection that has the consumable.\n\t * @param {String} type Consumable type. Will be normalized to a proper form, that is either `<word>` or `<part>:<part>`.\n\t * Second colon and everything after will be cut. Passing event name is a safe and good practice.\n\t */\n\tpublic add(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): void {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tif ( !this._consumable.has( item ) ) {\n\t\t\tthis._consumable.set( item, new Map() );\n\t\t}\n\n\t\tthis._consumable.get( item )!.set( type, true );\n\t}\n\n\t/**\n\t * Removes a given consumable value from a given model item.\n\t *\n\t *\t\tmodelConsumable.consume( modelElement, 'insert' ); // Remove `modelElement` insertion change from consumable values.\n\t *\t\tmodelConsumable.consume( modelElement, 'addAttribute:bold' ); // Remove `bold` attribute insertion on `modelElement` change.\n\t *\t\tmodelConsumable.consume( modelElement, 'removeAttribute:bold' ); // Remove `bold` attribute removal on `modelElement` change.\n\t *\t\tmodelConsumable.consume( modelSelection, 'selection' ); // Remove `modelSelection` from consumable values.\n\t *\t\tmodelConsumable.consume( modelRange, 'range' ); // Remove 'modelRange' from consumable values.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/selection~Selection|module:engine/model/range~Range} item\n\t * Model item, range or selection from which consumable will be consumed.\n\t * @param {String} type Consumable type. Will be normalized to a proper form, that is either `<word>` or `<part>:<part>`.\n\t * Second colon and everything after will be cut. Passing event name is a safe and good practice.\n\t * @returns {Boolean} `true` if consumable value was available and was consumed, `false` otherwise.\n\t */\n\tpublic consume(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): boolean {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tif ( this.test( item, type ) ) {\n\t\t\tthis._consumable.get( item )!.set( type, false );\n\n\t\t\treturn true;\n\t\t} else {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\t/**\n\t * Tests whether there is a consumable value of a given type connected with a given model item.\n\t *\n\t *\t\tmodelConsumable.test( modelElement, 'insert' ); // Check for `modelElement` insertion change.\n\t *\t\tmodelConsumable.test( modelElement, 'addAttribute:bold' ); // Check for `bold` attribute insertion on `modelElement` change.\n\t *\t\tmodelConsumable.test( modelElement, 'removeAttribute:bold' ); // Check for `bold` attribute removal on `modelElement` change.\n\t *\t\tmodelConsumable.test( modelSelection, 'selection' ); // Check if `modelSelection` is consumable.\n\t *\t\tmodelConsumable.test( modelRange, 'range' ); // Check if `modelRange` is consumable.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/selection~Selection|module:engine/model/range~Range} item\n\t * Model item, range or selection to be tested.\n\t * @param {String} type Consumable type. Will be normalized to a proper form, that is either `<word>` or `<part>:<part>`.\n\t * Second colon and everything after will be cut. Passing event name is a safe and good practice.\n\t * @returns {null|Boolean} `null` if such consumable was never added, `false` if the consumable values was\n\t * already consumed or `true` if it was added and not consumed yet.\n\t */\n\tpublic test(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): boolean | null {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tconst itemConsumables = this._consumable.get( item );\n\n\t\tif ( itemConsumables === undefined ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst value = itemConsumables.get( type );\n\n\t\tif ( value === undefined ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Reverts consuming of a consumable value.\n\t *\n\t *\t\tmodelConsumable.revert( modelElement, 'insert' ); // Revert consuming `modelElement` insertion change.\n\t *\t\tmodelConsumable.revert( modelElement, 'addAttribute:bold' ); // Revert consuming `bold` attribute insert from `modelElement`.\n\t *\t\tmodelConsumable.revert( modelElement, 'removeAttribute:bold' ); // Revert consuming `bold` attribute remove from `modelElement`.\n\t *\t\tmodelConsumable.revert( modelSelection, 'selection' ); // Revert consuming `modelSelection`.\n\t *\t\tmodelConsumable.revert( modelRange, 'range' ); // Revert consuming `modelRange`.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/selection~Selection|module:engine/model/range~Range} item\n\t * Model item, range or selection to be reverted.\n\t * @param {String} type Consumable type.\n\t * @returns {null|Boolean} `true` if consumable has been reversed, `false` otherwise. `null` if the consumable has\n\t * never been added.\n\t */\n\tpublic revert(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): boolean | null {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tconst test = this.test( item, type );\n\n\t\tif ( test === false ) {\n\t\t\tthis._consumable.get( item )!.set( type, true );\n\n\t\t\treturn true;\n\t\t} else if ( test === true ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Verifies if all events from the specified group were consumed.\n\t *\n\t * @param {String} eventGroup The events group to verify.\n\t */\n\tpublic verifyAllConsumed( eventGroup: string ): void {\n\t\tconst items = [];\n\n\t\tfor ( const [ item, consumables ] of this._consumable ) {\n\t\t\tfor ( const [ event, canConsume ] of consumables ) {\n\t\t\t\tconst eventPrefix = event.split( ':' )[ 0 ];\n\n\t\t\t\tif ( canConsume && eventGroup == eventPrefix ) {\n\t\t\t\t\titems.push( {\n\t\t\t\t\t\tevent,\n\t\t\t\t\t\titem: item.name || item.description\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( items.length ) {\n\t\t\t/**\n\t\t\t * Some of the {@link module:engine/model/item~Item model items} were not consumed while downcasting the model to view.\n\t\t\t *\n\t\t\t * This might be the effect of:\n\t\t\t *\n\t\t\t * * A missing converter for some model elements. Make sure that you registered downcast converters for all model elements.\n\t\t\t * * A custom converter that does not consume converted items. Make sure that you\n\t\t\t * {@link module:engine/conversion/modelconsumable~ModelConsumable#consume consumed} all model elements that you converted\n\t\t\t * from the model to the view.\n\t\t\t * * A custom converter that called `event.stop()`. When providing a custom converter, keep in mind that you should not stop\n\t\t\t * the event. If you stop it then the default converter at the `lowest` priority will not trigger the conversion of this node's\n\t\t\t * attributes and child nodes.\n\t\t\t *\n\t\t\t * @error conversion-model-consumable-not-consumed\n\t\t\t * @param {Array.<module:engine/model/item~Item>} items Items that were not consumed.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-model-consumable-not-consumed', null, { items } );\n\t\t}\n\t}\n\n\t/**\n\t * Gets a unique symbol for the passed {@link module:engine/model/textproxy~TextProxy} instance. All `TextProxy` instances that\n\t * have same parent, same start index and same end index will get the same symbol.\n\t *\n\t * Used internally to correctly consume `TextProxy` instances.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/textproxy~TextProxy} textProxy `TextProxy` instance to get a symbol for.\n\t * @returns {Symbol} Symbol representing all equal instances of `TextProxy`.\n\t */\n\tpublic _getSymbolForTextProxy( textProxy: TextProxy ): symbol {\n\t\tlet symbol = null;\n\n\t\tconst startMap = this._textProxyRegistry.get( textProxy.startOffset );\n\n\t\tif ( startMap ) {\n\t\t\tconst endMap = startMap.get( textProxy.endOffset );\n\n\t\t\tif ( endMap ) {\n\t\t\t\tsymbol = endMap.get( textProxy.parent );\n\t\t\t}\n\t\t}\n\n\t\tif ( !symbol ) {\n\t\t\tsymbol = this._addSymbolForTextProxy( textProxy );\n\t\t}\n\n\t\treturn symbol;\n\t}\n\n\t/**\n\t * Adds a symbol for the given {@link module:engine/model/textproxy~TextProxy} instance.\n\t *\n\t * Used internally to correctly consume `TextProxy` instances.\n\t *\n\t * @private\n\t * @param {module:engine/model/textproxy~TextProxy} textProxy Text proxy instance.\n\t * @returns {Symbol} Symbol generated for given `TextProxy`.\n\t */\n\tprivate _addSymbolForTextProxy( textProxy: TextProxy ): symbol {\n\t\tconst start = textProxy.startOffset;\n\t\tconst end = textProxy.endOffset;\n\t\tconst parent = textProxy.parent;\n\n\t\tconst symbol = Symbol( '$textProxy:' + textProxy.data );\n\t\tlet startMap: Map<number | null, Map<unknown, symbol>> | undefined;\n\t\tlet endMap: Map<unknown, symbol> | undefined;\n\n\t\tstartMap = this._textProxyRegistry.get( start );\n\n\t\tif ( !startMap ) {\n\t\t\tstartMap = new Map();\n\t\t\tthis._textProxyRegistry.set( start, startMap );\n\t\t}\n\n\t\tendMap = startMap.get( end );\n\n\t\tif ( !endMap ) {\n\t\t\tendMap = new Map();\n\t\t\tstartMap.set( end, endMap );\n\t\t}\n\n\t\tendMap.set( parent, symbol );\n\n\t\treturn symbol;\n\t}\n}\n\n// Returns a normalized consumable type name from the given string. A normalized consumable type name is a string that has\n// at most one colon, for example: `insert` or `addMarker:highlight`. If a string to normalize has more \"parts\" (more colons),\n// the further parts are dropped, for example: `addattribute:bold:$text` -> `addattributes:bold`.\n//\n// @param {String} type Consumable type.\n// @returns {String} Normalized consumable type.\nfunction _normalizeConsumableType( type: string ) {\n\tconst parts = type.split( ':' );\n\n\t// For inserts allow passing event name, it's stored in the context of a specified element so the element name is not needed.\n\tif ( parts[ 0 ] == 'insert' ) {\n\t\treturn parts[ 0 ];\n\t}\n\n\t// Markers are identified by the whole name (otherwise we would consume the whole markers group).\n\tif ( parts[ 0 ] == 'addMarker' || parts[ 0 ] == 'removeMarker' ) {\n\t\treturn type;\n\t}\n\n\treturn parts.length > 1 ? parts[ 0 ] + ':' + parts[ 1 ] : parts[ 0 ];\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/downcastdispatcher\n */\n\nimport Consumable from './modelconsumable';\nimport Range from '../model/range';\n\nimport { EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Differ, DiffItem } from '../model/differ';\nimport type { default as MarkerCollection, Marker } from '../model/markercollection';\nimport type { TreeWalkerValue } from '../model/treewalker';\nimport type DocumentSelection from '../model/documentselection';\nimport type DowncastWriter from '../view/downcastwriter';\nimport type Element from '../model/element';\nimport type Item from '../model/item';\nimport type Mapper from './mapper';\nimport type Position from '../model/position';\nimport type Schema from '../model/schema';\nimport type Selection from '../model/selection';\nimport type ViewElement from '../view/element';\n\n/**\n * The downcast dispatcher is a central point of downcasting (conversion from the model to the view), which is a process of reacting\n * to changes in the model and firing a set of events. The callbacks listening to these events are called converters. The\n * converters' role is to convert the model changes to changes in view (for example, adding view nodes or\n * changing attributes on view elements).\n *\n * During the conversion process, downcast dispatcher fires events basing on the state of the model and prepares\n * data for these events. It is important to understand that the events are connected with the changes done on the model,\n * for example: \"a node has been inserted\" or \"an attribute has changed\". This is in contrary to upcasting (a view-to-model conversion)\n * where you convert the view state (view nodes) to a model tree.\n *\n * The events are prepared basing on a diff created by the {@link module:engine/model/differ~Differ Differ}, which buffers them\n * and then passes to the downcast dispatcher as a diff between the old model state and the new model state.\n *\n * Note that because the changes are converted, there is a need to have a mapping between the model structure and the view structure.\n * To map positions and elements during the downcast (a model-to-view conversion), use {@link module:engine/conversion/mapper~Mapper}.\n *\n * Downcast dispatcher fires the following events for model tree changes:\n *\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`} &ndash;\n * If a range of nodes was inserted to the model tree.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:remove `remove`} &ndash;\n * If a range of nodes was removed from the model tree.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`} &ndash;\n * If an attribute was added, changed or removed from a model node.\n *\n * For {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`}\n * and {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`},\n * the downcast dispatcher generates {@link module:engine/conversion/modelconsumable~ModelConsumable consumables}.\n * These are used to have control over which changes have already been consumed. It is useful when some converters\n * overwrite others or convert multiple changes (for example, it converts an insertion of an element and also converts that\n * element's attributes during the insertion).\n *\n * Additionally, downcast dispatcher fires events for {@link module:engine/model/markercollection~Marker marker} changes:\n *\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker `addMarker`} &ndash; If a marker was added.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:removeMarker `removeMarker`} &ndash; If a marker was\n * removed.\n *\n * Note that changing a marker is done through removing the marker from the old range and adding it to the new range,\n * so both of these events are fired.\n *\n * Finally, a downcast dispatcher also handles firing events for the {@link module:engine/model/selection model selection}\n * conversion:\n *\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:selection `selection`}\n * &ndash; Converts the selection from the model to the view.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`}\n * &ndash; Fired for every selection attribute.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker `addMarker`}\n * &ndash; Fired for every marker that contains a selection.\n *\n * Unlike the model tree and the markers, the events for selection are not fired for changes but for a selection state.\n *\n * When providing custom listeners for a downcast dispatcher, remember to check whether a given change has not been\n * {@link module:engine/conversion/modelconsumable~ModelConsumable#consume consumed} yet.\n *\n * When providing custom listeners for a downcast dispatcher, keep in mind that you **should not** stop the event. If you stop it,\n * then the default converter at the `lowest` priority will not trigger the conversion of this node's attributes and child nodes.\n *\n * When providing custom listeners for a downcast dispatcher, remember to use the provided\n * {@link module:engine/view/downcastwriter~DowncastWriter view downcast writer} to apply changes to the view document.\n *\n * You can read more about conversion in the following guide:\n *\n * * {@glink framework/guides/deep-dive/conversion/downcast Downcast conversion}\n *\n * An example of a custom converter for the downcast dispatcher:\n *\n *\t\t// You will convert inserting a \"paragraph\" model element into the model.\n *\t\tdowncastDispatcher.on( 'insert:paragraph', ( evt, data, conversionApi ) => {\n *\t\t\t// Remember to check whether the change has not been consumed yet and consume it.\n *\t\t\tif ( !conversionApi.consumable.consume( data.item, 'insert' ) ) {\n *\t\t\t\treturn;\n *\t\t\t}\n *\n *\t\t\t// Translate the position in the model to a position in the view.\n *\t\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n *\n *\t\t\t// Create a <p> element that will be inserted into the view at the `viewPosition`.\n *\t\t\tconst viewElement = conversionApi.writer.createContainerElement( 'p' );\n *\n *\t\t\t// Bind the newly created view element to the model element so positions will map accordingly in the future.\n *\t\t\tconversionApi.mapper.bindElements( data.item, viewElement );\n *\n *\t\t\t// Add the newly created view element to the view.\n *\t\t\tconversionApi.writer.insert( viewPosition, viewElement );\n *\t\t} );\n */\nexport default class DowncastDispatcher extends EmitterMixin() {\n\t/** @internal */\n\tpublic readonly _conversionApi: Pick<DowncastConversionApi, 'dispatcher' | 'mapper' | 'schema'>;\n\n\tprivate readonly _firedEventsMap: WeakMap<DowncastConversionApi, Map<unknown, Set<string>>>;\n\n\t/**\n\t * Creates a downcast dispatcher instance.\n\t *\n\t * @see module:engine/conversion/downcastdispatcher~DowncastConversionApi\n\t * @param {Object} conversionApi Additional properties for an interface that will be passed to events fired\n\t * by the downcast dispatcher.\n\t */\n\tconstructor( conversionApi: Pick<DowncastConversionApi, 'mapper' | 'schema'> ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * A template for an interface passed by the dispatcher to the event callbacks.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:engine/conversion/downcastdispatcher~DowncastConversionApi}\n\t\t */\n\t\tthis._conversionApi = { dispatcher: this, ...conversionApi };\n\n\t\t/**\n\t\t * A map of already fired events for a given `ModelConsumable`.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakMap.<module:engine/conversion/downcastdispatcher~DowncastConversionApi,Map>}\n\t\t */\n\t\tthis._firedEventsMap = new WeakMap();\n\t}\n\n\t/**\n\t * Converts changes buffered in the given {@link module:engine/model/differ~Differ model differ}\n\t * and fires conversion events based on it.\n\t *\n\t * @fires insert\n\t * @fires remove\n\t * @fires attribute\n\t * @fires addMarker\n \t * @fires removeMarker\n\t * @fires reduceChanges\n\t * @param {module:engine/model/differ~Differ} differ The differ object with buffered changes.\n\t * @param {module:engine/model/markercollection~MarkerCollection} markers Markers related to the model fragment to convert.\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer The view writer that should be used to modify the view document.\n\t */\n\tpublic convertChanges(\n\t\tdiffer: Differ,\n\t\tmarkers: MarkerCollection,\n\t\twriter: DowncastWriter\n\t): void {\n\t\tconst conversionApi = this._createConversionApi( writer, differ.getRefreshedItems() );\n\n\t\t// Before the view is updated, remove markers which have changed.\n\t\tfor ( const change of differ.getMarkersToRemove() ) {\n\t\t\tthis._convertMarkerRemove( change.name, change.range, conversionApi );\n\t\t}\n\n\t\t// Let features modify the change list (for example to allow reconversion).\n\t\tconst changes = this._reduceChanges( differ.getChanges() );\n\n\t\t// Convert changes that happened on model tree.\n\t\tfor ( const entry of changes ) {\n\t\t\tif ( entry.type === 'insert' ) {\n\t\t\t\tthis._convertInsert( Range._createFromPositionAndShift( entry.position, entry.length ), conversionApi );\n\t\t\t} else if ( entry.type === 'reinsert' ) {\n\t\t\t\tthis._convertReinsert( Range._createFromPositionAndShift( entry.position, entry.length ), conversionApi );\n\t\t\t} else if ( entry.type === 'remove' ) {\n\t\t\t\tthis._convertRemove( entry.position, entry.length, entry.name, conversionApi );\n\t\t\t} else {\n\t\t\t\t// Defaults to 'attribute' change.\n\t\t\t\tthis._convertAttribute( entry.range, entry.attributeKey, entry.attributeOldValue, entry.attributeNewValue, conversionApi );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const markerName of conversionApi.mapper.flushUnboundMarkerNames() ) {\n\t\t\tconst markerRange = markers.get( markerName )!.getRange();\n\n\t\t\tthis._convertMarkerRemove( markerName, markerRange, conversionApi );\n\t\t\tthis._convertMarkerAdd( markerName, markerRange, conversionApi );\n\t\t}\n\n\t\t// After the view is updated, convert markers which have changed.\n\t\tfor ( const change of differ.getMarkersToAdd() ) {\n\t\t\tthis._convertMarkerAdd( change.name, change.range, conversionApi );\n\t\t}\n\n\t\t// Remove mappings for all removed view elements.\n\t\tconversionApi.mapper.flushDeferredBindings();\n\n\t\t// Verify if all insert consumables were consumed.\n\t\tconversionApi.consumable.verifyAllConsumed( 'insert' );\n\t}\n\n\t/**\n\t * Starts a conversion of a model range and the provided markers.\n\t *\n\t * @fires insert\n\t * @fires attribute\n\t * @fires addMarker\n\t * @param {module:engine/model/range~Range} range The inserted range.\n\t * @param {Map<String,module:engine/model/range~Range>} markers The map of markers that should be down-casted.\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer The view writer that should be used to modify the view document.\n\t * @param {Object} [options] Optional options object passed to `convertionApi.options`.\n\t */\n\tpublic convert(\n\t\trange: Range,\n\t\tmarkers: Map<string, Range>,\n\t\twriter: DowncastWriter,\n\t\toptions: unknown = {}\n\t): void {\n\t\tconst conversionApi = this._createConversionApi( writer, undefined, options );\n\n\t\tthis._convertInsert( range, conversionApi );\n\n\t\tfor ( const [ name, range ] of markers ) {\n\t\t\tthis._convertMarkerAdd( name, range, conversionApi );\n\t\t}\n\n\t\t// Verify if all insert consumables were consumed.\n\t\tconversionApi.consumable.verifyAllConsumed( 'insert' );\n\t}\n\n\t/**\n\t * Starts the model selection conversion.\n\t *\n\t * Fires events for a given {@link module:engine/model/selection~Selection selection} to start the selection conversion.\n\t *\n\t * @fires selection\n\t * @fires addMarker\n\t * @fires attribute\n\t * @param {module:engine/model/selection~Selection} selection The selection to convert.\n\t * @param {module:engine/model/markercollection~MarkerCollection} markers Markers connected with the converted model.\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer View writer that should be used to modify the view document.\n\t */\n\tpublic convertSelection(\n\t\tselection: Selection | DocumentSelection,\n\t\tmarkers: MarkerCollection,\n\t\twriter: DowncastWriter\n\t): void {\n\t\tconst markersAtSelection = Array.from( markers.getMarkersAtPosition( selection.getFirstPosition()! ) );\n\n\t\tconst conversionApi = this._createConversionApi( writer );\n\n\t\tthis._addConsumablesForSelection( conversionApi.consumable, selection, markersAtSelection );\n\n\t\tthis.fire<DowncastSelectionEvent>( 'selection', { selection }, conversionApi );\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const marker of markersAtSelection ) {\n\t\t\tconst markerRange = marker.getRange();\n\n\t\t\tif ( !shouldMarkerChangeBeConverted( selection.getFirstPosition()!, marker, conversionApi.mapper ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst data = {\n\t\t\t\titem: selection,\n\t\t\t\tmarkerName: marker.name,\n\t\t\t\tmarkerRange\n\t\t\t};\n\n\t\t\tif ( conversionApi.consumable.test( selection, 'addMarker:' + marker.name ) ) {\n\t\t\t\tthis.fire<DowncastAddMarkerEvent>( `addMarker:${ marker.name }`, data, conversionApi );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const key of selection.getAttributeKeys() ) {\n\t\t\tconst data = {\n\t\t\t\titem: selection,\n\t\t\t\trange: selection.getFirstRange()!,\n\t\t\t\tattributeKey: key,\n\t\t\t\tattributeOldValue: null,\n\t\t\t\tattributeNewValue: selection.getAttribute( key )\n\t\t\t};\n\n\t\t\t// Do not fire event if the attribute has been consumed.\n\t\t\tif ( conversionApi.consumable.test( selection, 'attribute:' + data.attributeKey ) ) {\n\t\t\t\tthis.fire<DowncastAttributeEvent>( `attribute:${ data.attributeKey }:$text`, data, conversionApi );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Fires insertion conversion of a range of nodes.\n\t *\n\t * For each node in the range, {@link #event:insert `insert` event is fired}. For each attribute on each node,\n\t * {@link #event:attribute `attribute` event is fired}.\n\t *\n\t * @protected\n\t * @fires insert\n\t * @fires attribute\n\t * @param {module:engine/model/range~Range} range The inserted range.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.doNotAddConsumables=false] Whether the ModelConsumable should not get populated\n\t * for items in the provided range.\n\t */\n\tprivate _convertInsert(\n\t\trange: Range,\n\t\tconversionApi: DowncastConversionApi,\n\t\toptions: { doNotAddConsumables?: boolean } = {}\n\t): void {\n\t\tif ( !options.doNotAddConsumables ) {\n\t\t\t// Collect a list of things that can be consumed, consisting of nodes and their attributes.\n\t\t\tthis._addConsumablesForInsert( conversionApi.consumable, Array.from( range ) );\n\t\t}\n\n\t\t// Fire a separate insert event for each node and text fragment contained in the range.\n\t\tfor ( const data of Array.from( range.getWalker( { shallow: true } ) ).map( walkerValueToEventData ) ) {\n\t\t\tthis._testAndFire( 'insert', data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Fires conversion of a single node removal. Fires {@link #event:remove remove event} with provided data.\n\t *\n\t * @protected\n\t * @param {module:engine/model/position~Position} position Position from which node was removed.\n\t * @param {Number} length Offset size of removed node.\n\t * @param {String} name Name of removed node.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t */\n\tprivate _convertRemove(\n\t\tposition: Position,\n\t\tlength: number,\n\t\tname: string,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\tthis.fire<DowncastRemoveEvent>( `remove:${ name }`, { position, length }, conversionApi );\n\t}\n\n\t/**\n\t * Starts a conversion of an attribute change on a given `range`.\n\t *\n\t * For each node in the given `range`, {@link #event:attribute attribute event} is fired with the passed data.\n\t *\n\t * @protected\n\t * @fires attribute\n\t * @param {module:engine/model/range~Range} range Changed range.\n\t * @param {String} key Key of the attribute that has changed.\n\t * @param {*} oldValue Attribute value before the change or `null` if the attribute has not been set before.\n\t * @param {*} newValue New attribute value or `null` if the attribute has been removed.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t */\n\tprivate _convertAttribute(\n\t\trange: Range,\n\t\tkey: string,\n\t\toldValue: unknown,\n\t\tnewValue: unknown,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\t// Create a list with attributes to consume.\n\t\tthis._addConsumablesForRange( conversionApi.consumable, range, `attribute:${ key }` );\n\n\t\t// Create a separate attribute event for each node in the range.\n\t\tfor ( const value of range ) {\n\t\t\tconst data = {\n\t\t\t\titem: value.item,\n\t\t\t\trange: Range._createFromPositionAndShift( value.previousPosition, value.length! ),\n\t\t\t\tattributeKey: key,\n\t\t\t\tattributeOldValue: oldValue,\n\t\t\t\tattributeNewValue: newValue\n\t\t\t};\n\n\t\t\tthis._testAndFire( `attribute:${ key }`, data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Fires re-insertion conversion (with a `reconversion` flag passed to `insert` events)\n\t * of a range of elements (only elements on the range depth, without children).\n\t *\n\t * For each node in the range on its depth (without children), {@link #event:insert `insert` event} is fired.\n\t * For each attribute on each node, {@link #event:attribute `attribute` event} is fired.\n\t *\n\t * @protected\n\t * @fires insert\n\t * @fires attribute\n\t * @param {module:engine/model/range~Range} range The range to reinsert.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t */\n\tprivate _convertReinsert( range: Range, conversionApi: DowncastConversionApi ): void {\n\t\t// Convert the elements - without converting children.\n\t\tconst walkerValues = Array.from( range.getWalker( { shallow: true } ) );\n\n\t\t// Collect a list of things that can be consumed, consisting of nodes and their attributes.\n\t\tthis._addConsumablesForInsert( conversionApi.consumable, walkerValues );\n\n\t\t// Fire a separate insert event for each node and text fragment contained shallowly in the range.\n\t\tfor ( const data of walkerValues.map( walkerValueToEventData ) ) {\n\t\t\tthis._testAndFire( 'insert', { ...data, reconversion: true }, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Converts the added marker. Fires the {@link #event:addMarker `addMarker`} event for each item\n\t * in the marker's range. If the range is collapsed, a single event is dispatched. See the event description for more details.\n\t *\n\t * @protected\n\t * @fires addMarker\n\t * @param {String} markerName Marker name.\n\t * @param {module:engine/model/range~Range} markerRange The marker range.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t */\n\tprivate _convertMarkerAdd(\n\t\tmarkerName: string,\n\t\tmarkerRange: Range,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\t// Do not convert if range is in graveyard.\n\t\tif ( markerRange.root.rootName == '$graveyard' ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// In markers' case, event name == consumable name.\n\t\tconst eventName = `addMarker:${ markerName }` as const;\n\n\t\t//\n\t\t// First, fire an event for the whole marker.\n\t\t//\n\t\tconversionApi.consumable.add( markerRange, eventName );\n\n\t\tthis.fire<DowncastAddMarkerEvent>( eventName, { markerName, markerRange }, conversionApi );\n\n\t\t//\n\t\t// Do not fire events for each item inside the range if the range got consumed.\n\t\t// Also consume the whole marker consumable if it wasn't consumed.\n\t\t//\n\t\tif ( !conversionApi.consumable.consume( markerRange, eventName ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t//\n\t\t// Then, fire an event for each item inside the marker range.\n\t\t//\n\t\tthis._addConsumablesForRange( conversionApi.consumable, markerRange, eventName );\n\n\t\tfor ( const item of markerRange.getItems() ) {\n\t\t\t// Do not fire event for already consumed items.\n\t\t\tif ( !conversionApi.consumable.test( item, eventName ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst data = { item, range: Range._createOn( item ), markerName, markerRange };\n\n\t\t\tthis.fire<DowncastAddMarkerEvent>( eventName, data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Fires the conversion of the marker removal. Fires the {@link #event:removeMarker `removeMarker`} event with the provided data.\n\t *\n\t * @protected\n\t * @fires removeMarker\n\t * @param {String} markerName Marker name.\n\t * @param {module:engine/model/range~Range} markerRange The marker range.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t */\n\tprivate _convertMarkerRemove( markerName: string, markerRange: Range, conversionApi: DowncastConversionApi ) {\n\t\t// Do not convert if range is in graveyard.\n\t\tif ( markerRange.root.rootName == '$graveyard' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.fire<DowncastRemoveMarkerEvent>( `removeMarker:${ markerName }`, { markerName, markerRange }, conversionApi );\n\t}\n\n\t/**\n\t * Fires the reduction of changes buffered in the {@link module:engine/model/differ~Differ `Differ`}.\n\t *\n\t * Features can replace selected {@link module:engine/model/differ~DiffItem `DiffItem`}s with `reinsert` entries to trigger\n\t * reconversion. The {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n\t * `DowncastHelpers.elementToStructure()`} is using this event to trigger reconversion.\n\t *\n\t * @private\n\t * @fires reduceChanges\n\t * @param {Iterable.<module:engine/model/differ~DiffItem>} changes\n\t * @returns {Iterable.<module:engine/model/differ~DiffItem>}\n\t */\n\tprivate _reduceChanges( changes: Iterable<DiffItem> ): Iterable<DiffItem | DiffItemReinsert> {\n\t\tconst data: { changes: Iterable<DiffItem | DiffItemReinsert> } = { changes };\n\n\t\tthis.fire<DowncastReduceChangesEvent>( 'reduceChanges', data );\n\n\t\treturn data.changes;\n\t}\n\n\t/**\n\t * Populates provided {@link module:engine/conversion/modelconsumable~ModelConsumable} with values to consume from a given range,\n\t * assuming that the range has just been inserted to the model.\n\t *\n\t * @private\n\t * @param {module:engine/conversion/modelconsumable~ModelConsumable} consumable The consumable.\n\t * @param {Iterable.<module:engine/model/treewalker~TreeWalkerValue>} walkerValues The walker values for the inserted range.\n\t * @returns {module:engine/conversion/modelconsumable~ModelConsumable} The values to consume.\n\t */\n\tprivate _addConsumablesForInsert(\n\t\tconsumable: Consumable,\n\t\twalkerValues: Iterable<TreeWalkerValue>\n\t): Consumable {\n\t\tfor ( const value of walkerValues ) {\n\t\t\tconst item = value.item;\n\n\t\t\t// Add consumable if it wasn't there yet.\n\t\t\tif ( consumable.test( item, 'insert' ) === null ) {\n\t\t\t\tconsumable.add( item, 'insert' );\n\n\t\t\t\tfor ( const key of item.getAttributeKeys() ) {\n\t\t\t\t\tconsumable.add( item, 'attribute:' + key );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn consumable;\n\t}\n\n\t/**\n\t * Populates provided {@link module:engine/conversion/modelconsumable~ModelConsumable} with values to consume for a given range.\n\t *\n\t * @private\n\t * @param {module:engine/conversion/modelconsumable~ModelConsumable} consumable The consumable.\n\t * @param {module:engine/model/range~Range} range The affected range.\n\t * @param {String} type Consumable type.\n\t * @returns {module:engine/conversion/modelconsumable~ModelConsumable} The values to consume.\n\t */\n\tprivate _addConsumablesForRange(\n\t\tconsumable: Consumable,\n\t\trange: Range,\n\t\ttype: string\n\t): Consumable {\n\t\tfor ( const item of range.getItems() ) {\n\t\t\tconsumable.add( item, type );\n\t\t}\n\n\t\treturn consumable;\n\t}\n\n\t/**\n\t * Populates provided {@link module:engine/conversion/modelconsumable~ModelConsumable} with selection consumable values.\n\t *\n\t * @private\n\t * @param {module:engine/conversion/modelconsumable~ModelConsumable} consumable The consumable.\n\t * @param {module:engine/model/selection~Selection} selection The selection to create the consumable from.\n\t * @param {Iterable.<module:engine/model/markercollection~Marker>} markers Markers that contain the selection.\n\t * @returns {module:engine/conversion/modelconsumable~ModelConsumable} The values to consume.\n\t */\n\tprivate _addConsumablesForSelection(\n\t\tconsumable: Consumable,\n\t\tselection: Selection | DocumentSelection,\n\t\tmarkers: Iterable<Marker>\n\t): Consumable {\n\t\tconsumable.add( selection, 'selection' );\n\n\t\tfor ( const marker of markers ) {\n\t\t\tconsumable.add( selection, 'addMarker:' + marker.name );\n\t\t}\n\n\t\tfor ( const key of selection.getAttributeKeys() ) {\n\t\t\tconsumable.add( selection, 'attribute:' + key );\n\t\t}\n\n\t\treturn consumable;\n\t}\n\n\t/**\n\t * Tests whether given event wasn't already fired and if so, fires it.\n\t *\n\t * @private\n\t * @fires insert\n\t * @fires attribute\n\t * @param {String} type Event type.\n\t * @param {Object} data Event data.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t */\n\tprivate _testAndFire<TType extends 'insert' | 'attribute'>(\n\t\ttype: TType | `${ TType }:${ string }`,\n\t\tdata: EventMap[ TType ],\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\tconst eventName = getEventName( type, data );\n\t\tconst itemKey = data.item.is( '$textProxy' ) ? conversionApi.consumable._getSymbolForTextProxy( data.item ) : data.item;\n\n\t\tconst eventsFiredForConversion = this._firedEventsMap.get( conversionApi )!;\n\t\tconst eventsFiredForItem = eventsFiredForConversion.get( itemKey );\n\n\t\tif ( !eventsFiredForItem ) {\n\t\t\teventsFiredForConversion.set( itemKey, new Set( [ eventName ] ) );\n\t\t} else if ( !eventsFiredForItem.has( eventName ) ) {\n\t\t\teventsFiredForItem.add( eventName );\n\t\t} else {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.fire<DowncastEvent<TType>>( eventName, data, conversionApi );\n\t}\n\n\t/**\n\t * Fires not already fired events for setting attributes on just inserted item.\n\t *\n\t * @private\n\t * @param {module:engine/model/item~Item} item The model item to convert attributes for.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.\n\t */\n\tprivate _testAndFireAddAttributes(\n\t\titem: Item,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\tconst data: EventMap[ 'attribute' ] = {\n\t\t\titem,\n\t\t\trange: Range._createOn( item )\n\t\t} as any;\n\n\t\tfor ( const key of data.item.getAttributeKeys() ) {\n\t\t\tdata.attributeKey = key;\n\t\t\tdata.attributeOldValue = null;\n\t\t\tdata.attributeNewValue = data.item.getAttribute( key );\n\n\t\t\tthis._testAndFire( `attribute:${ key }`, data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Builds an instance of the {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi} from a template and a given\n\t * {@link module:engine/view/downcastwriter~DowncastWriter `DowncastWriter`} and options object.\n\t *\n\t * @private\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer View writer that should be used to modify the view document.\n\t * @param {Set.<module:engine/model/element~Element>} [refreshedItems] A set of model elements that should not reuse their\n\t * previous view representations.\n\t * @param {Object} [options] Optional options passed to `convertionApi.options`.\n\t * @return {module:engine/conversion/downcastdispatcher~DowncastConversionApi} The conversion API object.\n\t */\n\tprivate _createConversionApi(\n\t\twriter: DowncastWriter,\n\t\trefreshedItems: Set<Item> = new Set(),\n\t\toptions: unknown = {}\n\t): DowncastConversionApi {\n\t\tconst conversionApi: DowncastConversionApi = {\n\t\t\t...this._conversionApi,\n\t\t\tconsumable: new Consumable(),\n\t\t\twriter,\n\t\t\toptions,\n\t\t\tconvertItem: item => this._convertInsert( Range._createOn( item ), conversionApi ),\n\t\t\tconvertChildren: element => this._convertInsert( Range._createIn( element ), conversionApi, { doNotAddConsumables: true } ),\n\t\t\tconvertAttributes: item => this._testAndFireAddAttributes( item, conversionApi ),\n\t\t\tcanReuseView: viewElement => !refreshedItems.has( conversionApi.mapper.toModelElement( viewElement )! )\n\t\t};\n\n\t\tthis._firedEventsMap.set( conversionApi, new Map() );\n\n\t\treturn conversionApi;\n\t}\n\n\t/**\n\t * Fired to enable reducing (transforming) changes buffered in the {@link module:engine/model/differ~Differ `Differ`} before\n\t * {@link #convertChanges `convertChanges()`} will fire any conversion events.\n\t *\n\t * For instance, a feature can replace selected {@link module:engine/model/differ~DiffItem `DiffItem`}s with a `reinsert` entry\n\t * to trigger reconversion of an element when e.g. its attribute has changes.\n\t * The {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n\t * `DowncastHelpers.elementToStructure()`} helper is using this event to trigger reconversion of an element when the element,\n\t * its attributes or direct children changed.\n\t *\n\t * @param {Object} data\n\t * @param {Iterable.<module:engine/model/differ~DiffItem>} data.changes A buffered changes to get reduced.\n\t * @event reduceChanges\n\t */\n\n\t/**\n\t * Fired for inserted nodes.\n\t *\n\t * `insert` is a namespace for a class of events. Names of actually called events follow this pattern:\n\t * `insert:name`. `name` is either `'$text'`, when {@link module:engine/model/text~Text a text node} has been inserted,\n\t * or {@link module:engine/model/element~Element#name name} of inserted element.\n\t *\n\t * This way, the listeners can either listen to a general `insert` event or specific event (for example `insert:paragraph`).\n\t *\n\t * @event insert\n\t * @param {Object} data Additional information about the change.\n\t * @param {module:engine/model/item~Item} data.item The inserted item.\n\t * @param {module:engine/model/range~Range} data.range Range spanning over inserted item.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n\t * to be used by callback, passed in the `DowncastDispatcher` constructor.\n\t */\n\n\t/**\n\t * Fired for removed nodes.\n\t *\n\t * `remove` is a namespace for a class of events. Names of actually called events follow this pattern:\n\t * `remove:name`. `name` is either `'$text'`, when a {@link module:engine/model/text~Text a text node} has been removed,\n\t * or the {@link module:engine/model/element~Element#name name} of removed element.\n\t *\n\t * This way, listeners can either listen to a general `remove` event or specific event (for example `remove:paragraph`).\n\t *\n\t * @event remove\n\t * @param {Object} data Additional information about the change.\n\t * @param {module:engine/model/position~Position} data.position Position from which the node has been removed.\n\t * @param {Number} data.length Offset size of the removed node.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n\t * to be used by callback, passed in `DowncastDispatcher` constructor.\n\t */\n\n\t/**\n\t * Fired in the following cases:\n\t *\n\t * * when an attribute has been added, changed, or removed from a node,\n\t * * when a node with an attribute is inserted,\n\t * * when a collapsed model selection attribute is converted.\n\t *\n\t * `attribute` is a namespace for a class of events. Names of actually called events follow this pattern:\n\t * `attribute:attributeKey:name`. `attributeKey` is the key of added/changed/removed attribute.\n\t * `name` is either `'$text'` if change was on {@link module:engine/model/text~Text a text node},\n\t * or the {@link module:engine/model/element~Element#name name} of element which attribute has changed.\n\t *\n\t * This way listeners can either listen to a general `attribute:bold` event or specific event (for example `attribute:src:imageBlock`).\n\t *\n\t * @event attribute\n\t * @param {Object} data Additional information about the change.\n\t * @param {module:engine/model/item~Item|module:engine/model/documentselection~DocumentSelection} data.item Changed item\n\t * or converted selection.\n\t * @param {module:engine/model/range~Range} data.range Range spanning over changed item or selection range.\n\t * @param {String} data.attributeKey Attribute key.\n\t * @param {*} data.attributeOldValue Attribute value before the change. This is `null` when selection attribute is converted.\n\t * @param {*} data.attributeNewValue New attribute value.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n\t * to be used by callback, passed in `DowncastDispatcher` constructor.\n\t */\n\n\t/**\n\t * Fired for {@link module:engine/model/selection~Selection selection} changes.\n\t *\n\t * @event selection\n\t * @param {module:engine/model/selection~Selection} selection Selection that is converted.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n\t * to be used by callback, passed in `DowncastDispatcher` constructor.\n\t */\n\n\t/**\n\t * Fired when a new marker is added to the model. Also fired when a collapsed model selection that is inside a marker is converted.\n\t *\n\t * `addMarker` is a namespace for a class of events. Names of actually called events follow this pattern:\n\t * `addMarker:markerName`. By specifying certain marker names, you can make the events even more gradual. For example,\n\t * if markers are named `foo:abc`, `foo:bar`, then it is possible to listen to `addMarker:foo` or `addMarker:foo:abc` and\n\t * `addMarker:foo:bar` events.\n\t *\n\t * If the marker range is not collapsed:\n\t *\n\t * * the event is fired for each item in the marker range one by one,\n\t * * `conversionApi.consumable` includes each item of the marker range and the consumable value is same as the event name.\n\t *\n\t * If the marker range is collapsed:\n\t *\n\t * * there is only one event,\n\t * * `conversionApi.consumable` includes marker range with the event name.\n\t *\n\t * If the selection inside a marker is converted:\n\t *\n\t * * there is only one event,\n\t * * `conversionApi.consumable` includes the selection instance with the event name.\n\t *\n\t * @event addMarker\n\t * @param {Object} data Additional information about the change.\n\t * @param {module:engine/model/item~Item|module:engine/model/selection~Selection} data.item Item inside the new marker or\n\t * the selection that is being converted.\n\t * @param {module:engine/model/range~Range} [data.range] Range spanning over converted item. Available only in marker conversion, if\n\t * the marker range was not collapsed.\n\t * @param {module:engine/model/range~Range} data.markerRange Marker range.\n\t * @param {String} data.markerName Marker name.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n\t * to be used by callback, passed in `DowncastDispatcher` constructor.\n\t */\n\n\t/**\n\t * Fired when a marker is removed from the model.\n\t *\n\t * `removeMarker` is a namespace for a class of events. Names of actually called events follow this pattern:\n\t * `removeMarker:markerName`. By specifying certain marker names, you can make the events even more gradual. For example,\n\t * if markers are named `foo:abc`, `foo:bar`, then it is possible to listen to `removeMarker:foo` or `removeMarker:foo:abc` and\n\t * `removeMarker:foo:bar` events.\n\t *\n\t * @event removeMarker\n\t * @param {Object} data Additional information about the change.\n\t * @param {module:engine/model/range~Range} data.markerRange Marker range.\n\t * @param {String} data.markerName Marker name.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n\t * to be used by callback, passed in `DowncastDispatcher` constructor.\n\t */\n}\n\nexport type DowncastReduceChangesEvent = {\n\tname: 'reduceChanges';\n\targs: [ data: {\n\t\tchanges: Iterable<DiffItem | DiffItemReinsert>;\n\t} ];\n};\n\ntype EventMap<TItem = Item> = {\n\tinsert: {\n\t\titem: TItem;\n\t\trange: Range;\n\t\treconversion?: boolean;\n\t};\n\tremove: {\n\t\tposition: Position;\n\t\tlength: number;\n\t};\n\tattribute: {\n\t\titem: TItem;\n\t\trange: Range;\n\t\tattributeKey: string;\n\t\tattributeOldValue: unknown;\n\t\tattributeNewValue: unknown;\n\t};\n\tselection: {\n\t\tselection: Selection | DocumentSelection;\n\t};\n\taddMarker: {\n\t\titem?: Item | Selection | DocumentSelection;\n\t\trange?: Range;\n\t\tmarkerRange: Range;\n\t\tmarkerName: string;\n\t};\n\tremoveMarker: {\n\t\tmarkerRange: Range;\n\t\tmarkerName: string;\n\t};\n};\n\nexport type DowncastEvent<TName extends keyof EventMap<TItem>, TItem = Item> = {\n\tname: TName | `${ TName }:${ string }`;\n\targs: [ data: EventMap<TItem>[ TName ], conversionApi: DowncastConversionApi ];\n};\n\nexport type DowncastInsertEvent<TItem extends Item = Item> = DowncastEvent<'insert', TItem>;\n\nexport type DowncastRemoveEvent = DowncastEvent<'remove'>;\n\nexport type DowncastAttributeEvent<TItem = Item | Selection | DocumentSelection> = DowncastEvent<'attribute', TItem>;\n\nexport type DowncastSelectionEvent = DowncastEvent<'selection'>;\n\nexport type DowncastAddMarkerEvent = DowncastEvent<'addMarker'>;\n\nexport type DowncastRemoveMarkerEvent = DowncastEvent<'removeMarker'>;\n\nexport interface DiffItemReinsert {\n\ttype: 'reinsert';\n\tname: string;\n\tposition: Position;\n\tlength: number;\n}\n\n// Helper function, checks whether change of `marker` at `modelPosition` should be converted. Marker changes are not\n// converted if they happen inside an element with custom conversion method.\n//\n// @param {module:engine/model/position~Position} modelPosition\n// @param {module:engine/model/markercollection~Marker} marker\n// @param {module:engine/conversion/mapper~Mapper} mapper\n// @returns {Boolean}\nfunction shouldMarkerChangeBeConverted(\n\tmodelPosition: Position,\n\tmarker: Marker,\n\tmapper: Mapper\n): boolean {\n\tconst range = marker.getRange();\n\tconst ancestors = Array.from( modelPosition.getAncestors() );\n\tancestors.shift(); // Remove root element. It cannot be passed to `model.Range#containsItem`.\n\tancestors.reverse();\n\n\tconst hasCustomHandling = ( ancestors as Array<Element> ).some( element => {\n\t\tif ( range.containsItem( element ) ) {\n\t\t\tconst viewElement = mapper.toViewElement( element )!;\n\n\t\t\treturn !!viewElement.getCustomProperty( 'addHighlight' );\n\t\t}\n\t} );\n\n\treturn !hasCustomHandling;\n}\n\nfunction getEventName<TType extends string>( type: TType, data: { item: Item | Selection | DocumentSelection } ) {\n\tconst name = data.item.is( 'element' ) ? data.item.name : '$text';\n\n\treturn `${ type }:${ name }` as const;\n}\n\nfunction walkerValueToEventData( value: TreeWalkerValue ) {\n\tconst item = value.item;\n\tconst itemRange = Range._createFromPositionAndShift( value.previousPosition, value.length! );\n\n\treturn {\n\t\titem,\n\t\trange: itemRange\n\t};\n}\n\n/**\n * Conversion interface that is registered for given {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}\n * and is passed as one of parameters when {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher dispatcher}\n * fires its events.\n *\n * @interface module:engine/conversion/downcastdispatcher~DowncastConversionApi\n */\n\nexport interface DowncastConversionApi {\n\tdispatcher: DowncastDispatcher;\n\tconsumable: Consumable;\n\tmapper: Mapper;\n\tschema: Schema;\n\twriter: DowncastWriter;\n\toptions: unknown;\n\n\tconvertItem( item: Item ): void;\n\tconvertChildren( element: Element ): void;\n\tconvertAttributes( item: Item ): void;\n\tcanReuseView( element: ViewElement ): boolean;\n}\n\n/**\n * The {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} instance.\n *\n * @member {module:engine/conversion/downcastdispatcher~DowncastDispatcher} #dispatcher\n */\n\n/**\n * Stores the information about what parts of a processed model item are still waiting to be handled. After a piece of a model item was\n * converted, an appropriate consumable value should be {@link module:engine/conversion/modelconsumable~ModelConsumable#consume consumed}.\n *\n * @member {module:engine/conversion/modelconsumable~ModelConsumable} #consumable\n */\n\n/**\n * The {@link module:engine/conversion/mapper~Mapper} instance.\n *\n * @member {module:engine/conversion/mapper~Mapper} #mapper\n */\n\n/**\n * The {@link module:engine/model/schema~Schema} instance set for the model that is downcast.\n *\n * @member {module:engine/model/schema~Schema} #schema\n */\n\n/**\n * The {@link module:engine/view/downcastwriter~DowncastWriter} instance used to manipulate the data during conversion.\n *\n * @member {module:engine/view/downcastwriter~DowncastWriter} #writer\n */\n\n/**\n * Triggers conversion of a specified item.\n * This conversion is triggered within (as a separate process of) the parent conversion.\n *\n * @method #convertItem\n * @param {module:engine/model/item~Item} item The model item to trigger nested insert conversion on.\n */\n\n/**\n * Triggers conversion of children of a specified element.\n *\n * @method #convertChildren\n * @param {module:engine/model/element~Element} element The model element to trigger children insert conversion on.\n */\n\n/**\n * Triggers conversion of attributes of a specified item.\n *\n * @method #convertAttributes\n * @param {module:engine/model/item~Item} item The model item to trigger attribute conversion on.\n */\n\n/**\n * An object with an additional configuration which can be used during the conversion process. Available only for data downcast conversion.\n *\n * @member {Object} #options\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/selection\n */\n\nimport TypeCheckable from './typecheckable';\nimport Node from './node';\nimport Position from './position';\nimport Range from './range';\n\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type Element from './element';\nimport type Item from './item';\n\nimport { CKEditorError, EmitterMixin, isIterable } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Selection is a set of {@link module:engine/model/range~Range ranges}. It has a direction specified by its\n * {@link module:engine/model/selection~Selection#anchor anchor} and {@link module:engine/model/selection~Selection#focus focus}\n * (it can be {@link module:engine/model/selection~Selection#isBackward forward or backward}).\n * Additionally, selection may have its own attributes (think – whether text typed in in this selection\n * should have those attributes – e.g. whether you type a bolded text).\n *\n * @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default class Selection extends EmitterMixin( TypeCheckable ) {\n\tprivate _lastRangeBackward: boolean;\n\tprotected _attrs: Map<string, unknown>;\n\n\t/** @internal */\n\tpublic _ranges: Array<Range>;\n\n\t/**\n\t * Creates a new selection instance based on the given {@link module:engine/model/selection~Selectable selectable}\n\t * or creates an empty selection if no arguments were passed.\n\t *\n\t *\t\t// Creates empty selection without ranges.\n\t *\t\tconst selection = writer.createSelection();\n\t *\n\t *\t\t// Creates selection at the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tconst selection = writer.createSelection( range );\n\t *\n\t *\t\t// Creates selection at the given ranges\n\t *\t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\tconst selection = writer.createSelection( ranges );\n\t *\n\t *\t\t// Creates selection from the other selection.\n\t *\t\t// Note: It doesn't copies selection attributes.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tconst selection = writer.createSelection( otherSelection );\n\t *\n\t *\t\t// Creates selection from the given document selection.\n\t *\t\t// Note: It doesn't copies selection attributes.\n\t *\t\tconst documentSelection = model.document.selection;\n\t *\t\tconst selection = writer.createSelection( documentSelection );\n\t *\n\t *\t\t// Creates selection at the given position.\n\t *\t\tconst position = writer.createPositionFromPath( root, path );\n\t *\t\tconst selection = writer.createSelection( position );\n\t *\n\t *\t\t// Creates selection at the given offset in the given element.\n\t *\t\tconst paragraph = writer.createElement( 'paragraph' );\n\t *\t\tconst selection = writer.createSelection( paragraph, offset );\n\t *\n\t *\t\t// Creates a range inside an {@link module:engine/model/element~Element element} which starts before the\n\t *\t\t// first child of that element and ends after the last child of that element.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t *\t\t// Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends\n\t *\t\t// just after the item.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'on' );\n\t *\n\t * Selection's constructor allow passing additional options (`'backward'`) as the last argument.\n\t *\n\t *\t\t// Creates backward selection.\n\t *\t\tconst selection = writer.createSelection( range, { backward: true } );\n\t *\n\t * @param {module:engine/model/selection~Selectable} [selectable]\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t */\n\tconstructor(\n\t\t...args: [] |\n\t\t[\n\t\t\tselectable: Selectable,\n\t\t\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in',\n\t\t\toptions?: { backward?: boolean }\n\t\t] |\n\t\t[\n\t\t\tselectable: Selectable,\n\t\t\toptions: { backward?: boolean }\n\t\t]\n\t) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Specifies whether the last added range was added as a backward or forward range.\n\t\t *\n\t\t * @private\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._lastRangeBackward = false;\n\n\t\t/**\n\t\t * Stores selection ranges.\n\t\t *\n\t\t * @protected\n\t\t * @type {Array.<module:engine/model/range~Range>}\n\t\t */\n\t\tthis._ranges = [];\n\n\t\t/**\n\t\t * List of attributes set on current selection.\n\t\t *\n\t\t * @protected\n\t\t * @type {Map.<String,*>}\n\t\t */\n\t\tthis._attrs = new Map();\n\n\t\tif ( args.length ) {\n\t\t\tthis.setTo( ...args );\n\t\t}\n\t}\n\n\t/**\n\t * Selection anchor. Anchor is the position from which the selection was started. If a user is making a selection\n\t * by dragging the mouse, the anchor is where the user pressed the mouse button (the beginning of the selection).\n\t *\n\t * Anchor and {@link #focus} define the direction of the selection, which is important\n\t * when expanding/shrinking selection. The focus moves, while the anchor should remain in the same place.\n\t *\n\t * Anchor is always set to the {@link module:engine/model/range~Range#start start} or\n\t * {@link module:engine/model/range~Range#end end} position of the last of selection's ranges. Whether it is\n\t * the `start` or `end` depends on the specified `options.backward`. See the {@link #setTo `setTo()`} method.\n\t *\n\t * May be set to `null` if there are no ranges in the selection.\n\t *\n\t * @see #focus\n\t * @readonly\n\t * @type {module:engine/model/position~Position|null}\n\t */\n\tpublic get anchor(): Position | null {\n\t\tif ( this._ranges.length > 0 ) {\n\t\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\n\t\t\treturn this._lastRangeBackward ? range.end : range.start;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Selection focus. Focus is the position where the selection ends. If a user is making a selection\n\t * by dragging the mouse, the focus is where the mouse cursor is.\n\t *\n\t * May be set to `null` if there are no ranges in the selection.\n\t *\n\t * @see #anchor\n\t * @readonly\n\t * @type {module:engine/model/position~Position|null}\n\t */\n\tpublic get focus(): Position | null {\n\t\tif ( this._ranges.length > 0 ) {\n\t\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\n\t\t\treturn this._lastRangeBackward ? range.start : range.end;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Whether the selection is collapsed. Selection is collapsed when there is exactly one range in it\n\t * and it is collapsed.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\tconst length = this._ranges.length;\n\n\t\tif ( length === 1 ) {\n\t\t\treturn this._ranges[ 0 ].isCollapsed;\n\t\t} else {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\t/**\n\t * Returns the number of ranges in the selection.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._ranges.length;\n\t}\n\n\t/**\n\t * Specifies whether the selection's {@link #focus} precedes the selection's {@link #anchor}.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn !this.isCollapsed && this._lastRangeBackward;\n\t}\n\n\t/**\n\t * Checks whether this selection is equal to the given selection. Selections are equal if they have the same directions,\n\t * the same number of ranges and all ranges from one selection equal to ranges from the another selection.\n\t *\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} otherSelection\n\t * Selection to compare with.\n\t * @returns {Boolean} `true` if selections are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherSelection: Selection | DocumentSelection ): boolean {\n\t\tif ( this.rangeCount != otherSelection.rangeCount ) {\n\t\t\treturn false;\n\t\t} else if ( this.rangeCount === 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( !this.anchor!.isEqual( otherSelection.anchor! ) || !this.focus!.isEqual( otherSelection.focus! ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tfor ( const thisRange of this._ranges ) {\n\t\t\tlet found = false;\n\n\t\t\tfor ( const otherRange of otherSelection._ranges ) {\n\t\t\t\tif ( thisRange.isEqual( otherRange ) ) {\n\t\t\t\t\tfound = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( !found ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns an iterable object that iterates over copies of selection ranges.\n\t *\n\t * @returns {Iterable.<module:engine/model/range~Range>}\n\t */\n\tpublic* getRanges(): IterableIterator<Range> {\n\t\tfor ( const range of this._ranges ) {\n\t\t\tyield new Range( range.start, range.end );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a copy of the first range in the selection.\n\t * First range is the one which {@link module:engine/model/range~Range#start start} position\n\t * {@link module:engine/model/position~Position#isBefore is before} start position of all other ranges\n\t * (not to confuse with the first range added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/range~Range|null}\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\tlet first = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !first || range.start.isBefore( first.start ) ) {\n\t\t\t\tfirst = range;\n\t\t\t}\n\t\t}\n\n\t\treturn first ? new Range( first.start, first.end ) : null;\n\t}\n\n\t/**\n\t * Returns a copy of the last range in the selection.\n\t * Last range is the one which {@link module:engine/model/range~Range#end end} position\n\t * {@link module:engine/model/position~Position#isAfter is after} end position of all other ranges (not to confuse with the range most\n\t * recently added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/range~Range|null}\n\t */\n\tpublic getLastRange(): Range | null {\n\t\tlet last = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !last || range.end.isAfter( last.end ) ) {\n\t\t\t\tlast = range;\n\t\t\t}\n\t\t}\n\n\t\treturn last ? new Range( last.start, last.end ) : null;\n\t}\n\n\t/**\n\t * Returns the first position in the selection.\n\t * First position is the position that {@link module:engine/model/position~Position#isBefore is before}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/position~Position|null}\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\tconst first = this.getFirstRange();\n\n\t\treturn first ? first.start.clone() : null;\n\t}\n\n\t/**\n\t * Returns the last position in the selection.\n\t * Last position is the position that {@link module:engine/model/position~Position#isAfter is after}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/position~Position|null}\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\tconst lastRange = this.getLastRange();\n\n\t\treturn lastRange ? lastRange.end.clone() : null;\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/model/selection~Selectable selectable}.\n\t *\n\t *\t\t// Removes all selection's ranges.\n\t *\t\tselection.setTo( null );\n\t *\n\t *\t\t// Sets selection to the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tselection.setTo( range );\n\t *\n\t *\t\t// Sets selection to given ranges.\n\t *\t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\tselection.setTo( ranges );\n\t *\n\t *\t\t// Sets selection to other selection.\n\t *\t\t// Note: It doesn't copies selection attributes.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tselection.setTo( otherSelection );\n\t *\n\t *\t\t// Sets selection to the given document selection.\n\t *\t\t// Note: It doesn't copies selection attributes.\n\t *\t\tconst documentSelection = new DocumentSelection( doc );\n\t *\t\tselection.setTo( documentSelection );\n\t *\n\t *\t\t// Sets collapsed selection at the given position.\n\t *\t\tconst position = writer.createPositionFromPath( root, path );\n\t *\t\tselection.setTo( position );\n\t *\n\t *\t\t// Sets collapsed selection at the position of the given node and an offset.\n\t *\t\tselection.setTo( paragraph, offset );\n\t *\n\t * Creates a range inside an {@link module:engine/model/element~Element element} which starts before the first child of\n \t * that element and ends after the last child of that element.\n\t *\n\t *\t\tselection.setTo( paragraph, 'in' );\n\t *\n\t * Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t *\t\tselection.setTo( paragraph, 'on' );\n\t *\n\t * `Selection#setTo()`' method allow passing additional options (`backward`) as the last argument.\n\t *\n\t *\t\t// Sets backward selection.\n\t *\t\tconst selection = writer.createSelection( range, { backward: true } );\n\t *\n\t * @param {module:engine/model/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t */\n\tpublic setTo(\n\t\t...args: [\n\t\t\tselectable: Selectable,\n\t\t\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in',\n\t\t\toptions?: { backward?: boolean }\n\t\t] | [\n\t\t\tselectable: Selectable,\n\t\t\toptions: { backward?: boolean }\n\t\t]\n\t): void {\n\t\tlet [ selectable, placeOrOffset, options ] = args;\n\n\t\tif ( typeof placeOrOffset == 'object' ) {\n\t\t\toptions = placeOrOffset;\n\t\t\tplaceOrOffset = undefined;\n\t\t}\n\n\t\tif ( selectable === null ) {\n\t\t\tthis._setRanges( [] );\n\t\t} else if ( selectable instanceof Selection ) {\n\t\t\tthis._setRanges( selectable.getRanges(), selectable.isBackward );\n\t\t} else if ( selectable && typeof ( selectable as any ).getRanges == 'function' ) {\n\t\t\t// We assume that the selectable is a DocumentSelection.\n\t\t\t// It can't be imported here, because it would lead to circular imports.\n\t\t\tthis._setRanges( ( selectable as DocumentSelection ).getRanges(), ( selectable as DocumentSelection ).isBackward );\n\t\t} else if ( selectable instanceof Range ) {\n\t\t\tthis._setRanges( [ selectable ], !!options && !!options.backward );\n\t\t} else if ( selectable instanceof Position ) {\n\t\t\tthis._setRanges( [ new Range( selectable ) ] );\n\t\t} else if ( selectable instanceof Node ) {\n\t\t\tconst backward = !!options && !!options.backward;\n\t\t\tlet range;\n\n\t\t\tif ( placeOrOffset == 'in' ) {\n\t\t\t\trange = Range._createIn( selectable as Element );\n\t\t\t} else if ( placeOrOffset == 'on' ) {\n\t\t\t\trange = Range._createOn( selectable );\n\t\t\t} else if ( placeOrOffset !== undefined ) {\n\t\t\t\trange = new Range( Position._createAt( selectable, placeOrOffset ) );\n\t\t\t} else {\n\t\t\t\t/**\n\t\t\t\t * selection.setTo requires the second parameter when the first parameter is a node.\n\t\t\t\t *\n\t\t\t\t * @error model-selection-setto-required-second-parameter\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-selection-setto-required-second-parameter', [ this, selectable ] );\n\t\t\t}\n\n\t\t\tthis._setRanges( [ range ], backward );\n\t\t} else if ( isIterable( selectable ) ) {\n\t\t\t// We assume that the selectable is an iterable of ranges.\n\t\t\tthis._setRanges( selectable, options && !!options.backward );\n\t\t} else {\n\t\t\t/**\n\t\t\t * Cannot set the selection to the given place.\n\t\t\t *\n\t\t\t * Invalid parameters were specified when setting the selection. Common issues:\n\t\t\t *\n\t\t\t * * A {@link module:engine/model/textproxy~TextProxy} instance was passed instead of\n\t\t\t * a real {@link module:engine/model/text~Text}.\n\t\t\t * * View nodes were passed instead of model nodes.\n\t\t\t * * `null`/`undefined` was passed.\n\t\t\t *\n\t\t\t * @error model-selection-setto-not-selectable\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-selection-setto-not-selectable', [ this, selectable ] );\n\t\t}\n\t}\n\n\t/**\n\t * Replaces all ranges that were added to the selection with given array of ranges. Last range of the array\n\t * is treated like the last added range and is used to set {@link module:engine/model/selection~Selection#anchor} and\n\t * {@link module:engine/model/selection~Selection#focus}. Accepts a flag describing in which direction the selection is made.\n\t *\n\t * @protected\n\t * @fires change:range\n\t * @param {Iterable.<module:engine/model/range~Range>} newRanges Ranges to set.\n\t * @param {Boolean} [isLastBackward=false] Flag describing if last added range was selected forward - from start to end (`false`)\n\t * or backward - from end to start (`true`).\n\t */\n\tprotected _setRanges( newRanges: Iterable<Range>, isLastBackward: boolean = false ): void {\n\t\tconst ranges = Array.from( newRanges );\n\n\t\t// Check whether there is any range in new ranges set that is different than all already added ranges.\n\t\tconst anyNewRange = ranges.some( newRange => {\n\t\t\tif ( !( newRange instanceof Range ) ) {\n\t\t\t\t/**\n\t\t\t\t * Selection range set to an object that is not an instance of {@link module:engine/model/range~Range}.\n\t\t\t\t *\n\t\t\t\t * Only {@link module:engine/model/range~Range} instances can be used to set a selection.\n\t\t\t\t * Common mistakes leading to this error are:\n\t\t\t\t *\n\t\t\t\t * * using DOM `Range` object,\n\t\t\t\t * * incorrect CKEditor 5 installation with multiple `ckeditor5-engine` packages having different versions.\n\t\t\t\t *\n\t\t\t\t * @error model-selection-set-ranges-not-range\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'model-selection-set-ranges-not-range',\n\t\t\t\t\t[ this, newRanges ]\n\t\t\t\t);\n\t\t\t}\n\n\t\t\treturn this._ranges.every( oldRange => {\n\t\t\t\treturn !oldRange.isEqual( newRange );\n\t\t\t} );\n\t\t} );\n\n\t\t// Don't do anything if nothing changed.\n\t\tif ( ranges.length === this._ranges.length && !anyNewRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._replaceAllRanges( ranges );\n\n\t\tthis._lastRangeBackward = !!isLastBackward;\n\n\t\tthis.fire<SelectionChangeRangeEvent>( 'change:range', { directChange: true } );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/model/selection~Selection#focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as\n\t * {@link module:engine/model/writer~Writer#createPositionAt writer.createPositionAt()} parameters.\n\t *\n\t * @fires change:range\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic setFocus( itemOrPosition: Item | Position, offset?: number | 'end' | 'before' | 'after' ): void {\n\t\tif ( this.anchor === null ) {\n\t\t\t/**\n\t\t\t * Cannot set selection focus if there are no ranges in selection.\n\t\t\t *\n\t\t\t * @error model-selection-setfocus-no-ranges\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-selection-setfocus-no-ranges', [ this, itemOrPosition ] );\n\t\t}\n\n\t\tconst newFocus = Position._createAt( itemOrPosition, offset );\n\n\t\tif ( newFocus.compareWith( this.focus! ) == 'same' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst anchor = this.anchor;\n\n\t\tif ( this._ranges.length ) {\n\t\t\tthis._popRange();\n\t\t}\n\n\t\tif ( newFocus.compareWith( anchor ) == 'before' ) {\n\t\t\tthis._pushRange( new Range( newFocus, anchor ) );\n\t\t\tthis._lastRangeBackward = true;\n\t\t} else {\n\t\t\tthis._pushRange( new Range( anchor, newFocus ) );\n\t\t\tthis._lastRangeBackward = false;\n\t\t}\n\n\t\tthis.fire<SelectionChangeRangeEvent>( 'change:range', { directChange: true } );\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on the selection.\n\t *\n\t * @param {String} key Key of attribute to look for.\n\t * @returns {*} Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this._attrs.get( key );\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t *\n\t * @returns {Iterable.<*>}\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this._attrs.entries();\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attribute keys.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this._attrs.keys();\n\t}\n\n\t/**\n\t * Checks if the selection has an attribute for given key.\n\t *\n\t * @param {String} key Key of attribute to check.\n\t * @returns {Boolean} `true` if attribute with given key is set on selection, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this._attrs.has( key );\n\t}\n\n\t/**\n\t * Removes an attribute with given key from the selection.\n\t *\n\t * If given attribute was set on the selection, fires the {@link #event:change:range} event with\n\t * removed attribute key.\n\t *\n\t * @fires change:attribute\n\t * @param {String} key Key of attribute to remove.\n\t */\n\tpublic removeAttribute( key: string ): void {\n\t\tif ( this.hasAttribute( key ) ) {\n\t\t\tthis._attrs.delete( key );\n\n\t\t\tthis.fire<SelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys: [ key ], directChange: true } );\n\t\t}\n\t}\n\n\t/**\n\t * Sets attribute on the selection. If attribute with the same key already is set, it's value is overwritten.\n\t *\n\t * If the attribute value has changed, fires the {@link #event:change:range} event with\n\t * the attribute key.\n\t *\n\t * @fires change:attribute\n\t * @param {String} key Key of attribute to set.\n\t * @param {*} value Attribute value.\n\t */\n\tpublic setAttribute( key: string, value: unknown ): void {\n\t\tif ( this.getAttribute( key ) !== value ) {\n\t\t\tthis._attrs.set( key, value );\n\n\t\t\tthis.fire<SelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys: [ key ], directChange: true } );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/model/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t *\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\tif ( this.rangeCount !== 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.getFirstRange()!.getContainedElement();\n\t}\n\n\t/**\n\t * Gets elements of type {@link module:engine/model/schema~Schema#isBlock \"block\"} touched by the selection.\n\t *\n\t * This method's result can be used for example to apply block styling to all blocks covered by this selection.\n\t *\n\t * **Note:** `getSelectedBlocks()` returns blocks that are nested in other non-block elements\n\t * but will not return blocks nested in other blocks.\n\t *\n\t * In this case the function will return exactly all 3 paragraphs (note: `<blockQuote>` is not a block itself):\n\t *\n\t *\t\t<paragraph>[a</paragraph>\n\t *\t\t<blockQuote>\n\t *\t\t\t<paragraph>b</paragraph>\n\t *\t\t</blockQuote>\n\t *\t\t<paragraph>c]d</paragraph>\n\t *\n\t * In this case the paragraph will also be returned, despite the collapsed selection:\n\t *\n\t *\t\t<paragraph>[]a</paragraph>\n\t *\n\t * In such a scenario, however, only blocks A, B & E will be returned as blocks C & D are nested in block B:\n\t *\n\t *\t\t[<blockA></blockA>\n\t *\t\t<blockB>\n\t *\t\t\t<blockC></blockC>\n\t *\t\t\t<blockD></blockD>\n\t *\t\t</blockB>\n\t *\t\t<blockE></blockE>]\n\t *\n\t * If the selection is inside a block all the inner blocks (A & B) are returned:\n\t *\n\t * \t\t<block>\n\t *\t\t\t<blockA>[a</blockA>\n\t * \t\t\t<blockB>b]</blockB>\n\t * \t\t</block>\n\t *\n\t * **Special case**: If a selection ends at the beginning of a block, that block is not returned as from user perspective\n\t * this block wasn't selected. See [#984](https://github.com/ckeditor/ckeditor5-engine/issues/984) for more details.\n\t *\n\t *\t\t<paragraph>[a</paragraph>\n\t *\t\t<paragraph>b</paragraph>\n\t *\t\t<paragraph>]c</paragraph> // this block will not be returned\n\t *\n\t * @returns {Iterable.<module:engine/model/element~Element>}\n\t */\n\tpublic* getSelectedBlocks(): IterableIterator<Element> {\n\t\tconst visited = new WeakSet<Node | DocumentFragment>();\n\n\t\tfor ( const range of this.getRanges() ) {\n\t\t\t// Get start block of range in case of a collapsed range.\n\t\t\tconst startBlock = getParentBlock( range.start, visited );\n\n\t\t\tif ( startBlock && isTopBlockInRange( startBlock, range ) ) {\n\t\t\t\tyield startBlock as any;\n\t\t\t}\n\n\t\t\tfor ( const value of range.getWalker() ) {\n\t\t\t\tconst block = value.item;\n\n\t\t\t\tif ( value.type == 'elementEnd' && isUnvisitedTopBlock( block as any, visited, range ) ) {\n\t\t\t\t\tyield block as Element;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst endBlock = getParentBlock( range.end, visited );\n\n\t\t\t// #984. Don't return the end block if the range ends right at its beginning.\n\t\t\tif ( endBlock && !range.end.isTouching( Position._createAt( endBlock, 0 ) ) && isTopBlockInRange( endBlock, range ) ) {\n\t\t\t\tyield endBlock as any;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks whether the selection contains the entire content of the given element. This means that selection must start\n\t * at a position {@link module:engine/model/position~Position#isTouching touching} the element's start and ends at position\n\t * touching the element's end.\n\t *\n\t * By default, this method will check whether the entire content of the selection's current root is selected.\n\t * Useful to check if e.g. the user has just pressed <kbd>Ctrl</kbd> + <kbd>A</kbd>.\n\t *\n\t * @param {module:engine/model/element~Element} [element=this.anchor.root]\n\t * @returns {Boolean}\n\t */\n\tpublic containsEntireContent( element: Element = this.anchor!.root as Element ): boolean {\n\t\tconst limitStartPosition = Position._createAt( element, 0 );\n\t\tconst limitEndPosition = Position._createAt( element, 'end' );\n\n\t\treturn limitStartPosition.isTouching( this.getFirstPosition()! ) &&\n\t\t\tlimitEndPosition.isTouching( this.getLastPosition()! );\n\t}\n\n\t/**\n\t * Adds given range to internal {@link #_ranges ranges array}. Throws an error\n\t * if given range is intersecting with any range that is already stored in this selection.\n\t *\n\t * @protected\n\t * @param {module:engine/model/range~Range} range Range to add.\n\t */\n\tprotected _pushRange( range: Range ): void {\n\t\tthis._checkRange( range );\n\t\tthis._ranges.push( new Range( range.start, range.end ) );\n\t}\n\n\t/**\n\t * Checks if given range intersects with ranges that are already in the selection. Throws an error if it does.\n\t *\n\t * @protected\n\t * @param {module:engine/model/range~Range} range Range to check.\n\t */\n\tprotected _checkRange( range: Range ): void {\n\t\tfor ( let i = 0; i < this._ranges.length; i++ ) {\n\t\t\tif ( range.isIntersecting( this._ranges[ i ] ) ) {\n\t\t\t\t/**\n\t\t\t\t * Trying to add a range that intersects with another range in the selection.\n\t\t\t\t *\n\t\t\t\t * @error model-selection-range-intersects\n\t\t\t\t * @param {module:engine/model/range~Range} addedRange Range that was added to the selection.\n\t\t\t\t * @param {module:engine/model/range~Range} intersectingRange Range in the selection that intersects with `addedRange`.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'model-selection-range-intersects',\n\t\t\t\t\t[ this, range ],\n\t\t\t\t\t{ addedRange: range, intersectingRange: this._ranges[ i ] }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Replaces all the ranges by the given ones.\n\t * Uses {@link #_popRange _popRange} and {@link #_pushRange _pushRange} to ensure proper ranges removal and addition.\n\t *\n\t * @param {Array.<module:engine/model/range~Range>} ranges\n\t * @protected\n\t */\n\tprotected _replaceAllRanges( ranges: Array<Range> ): void {\n\t\tthis._removeAllRanges();\n\n\t\tfor ( const range of ranges ) {\n\t\t\tthis._pushRange( range );\n\t\t}\n\t}\n\n\t/**\n\t * Deletes ranges from internal range array. Uses {@link #_popRange _popRange} to\n\t * ensure proper ranges removal.\n\t *\n\t * @protected\n\t */\n\tprotected _removeAllRanges(): void {\n\t\twhile ( this._ranges.length > 0 ) {\n\t\t\tthis._popRange();\n\t\t}\n\t}\n\n\t/**\n\t * Removes most recently added range from the selection.\n\t *\n\t * @protected\n\t */\n\tprotected _popRange(): void {\n\t\tthis._ranges.pop();\n\t}\n\n\t/**\n\t * Fired when selection range(s) changed.\n\t *\n\t * @event change:range\n\t * @param {Boolean} directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n\t * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n\t * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its position\n\t * was directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n\t * changed because the structure of the model has been changed (which means an indirect change).\n\t * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n\t * which mean that they are not updated once the document changes.\n\t */\n\n\t/**\n\t * Fired when selection attribute changed.\n\t *\n\t * @event change:attribute\n\t * @param {Boolean} directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n\t * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n\t * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its attributes\n\t * were directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n\t * changed in the model and its attributes were refreshed (which means an indirect change).\n\t * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n\t * which mean that they are not updated once the document changes.\n\t * @param {Array.<String>} attributeKeys Array containing keys of attributes that changed.\n\t */\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tselection.is( 'selection' ); // -> true\n *\t\tselection.is( 'model:selection' ); // -> true\n *\n *\t\tselection.is( 'view:selection' ); // -> false\n *\t\tselection.is( 'range' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' || type === 'model:selection';\n};\n\nexport type SelectionChangeEvent = {\n\tname: 'change' | 'change:range' | 'change:attribute';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\tattributeKeys?: Array<string>;\n\t} ];\n};\n\nexport type SelectionChangeRangeEvent = {\n\tname: 'change:range';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t} ];\n};\n\nexport type SelectionChangeAttributeEvent = {\n\tname: 'change:attribute';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\tattributeKeys: Array<string>;\n\t} ];\n};\n\n// Checks whether the given element extends $block in the schema and has a parent (is not a root).\n// Marks it as already visited.\nfunction isUnvisitedBlock( element: Node | DocumentFragment, visited: WeakSet<Node | DocumentFragment> ) {\n\tif ( visited.has( element ) ) {\n\t\treturn false;\n\t}\n\n\tvisited.add( element );\n\n\treturn element.root.document!.model.schema.isBlock( element ) && !!element.parent;\n}\n\n// Checks if the given element is a $block was not previously visited and is a top block in a range.\nfunction isUnvisitedTopBlock( element: Element, visited: WeakSet<Node | DocumentFragment>, range: Range ) {\n\treturn isUnvisitedBlock( element, visited ) && isTopBlockInRange( element, range );\n}\n\n// Finds the lowest element in position's ancestors which is a block.\n// It will search until first ancestor that is a limit element.\n// Marks all ancestors as already visited to not include any of them later on.\nfunction getParentBlock( position: Position, visited: WeakSet<Node | DocumentFragment> ) {\n\tconst element = position.parent;\n\tconst schema = element.root.document!.model.schema;\n\n\tconst ancestors = position.parent.getAncestors( { parentFirst: true, includeSelf: true } );\n\n\tlet hasParentLimit = false;\n\n\tconst block = ancestors.find( ( element ): element is Element => {\n\t\t// Stop searching after first parent node that is limit element.\n\t\tif ( hasParentLimit ) {\n\t\t\treturn false;\n\t\t}\n\n\t\thasParentLimit = schema.isLimit( element );\n\n\t\treturn !hasParentLimit && isUnvisitedBlock( element, visited );\n\t} );\n\n\t// Mark all ancestors of this position's parent, because find() might've stopped early and\n\t// the found block may be a child of another block.\n\tancestors.forEach( element => visited.add( element ) );\n\n\treturn block;\n}\n\n// Checks if the blocks is not nested in other block inside a range.\n//\n// @param {module:engine/model/element~Element} block Block to check.\n// @param {module:engine/model/range~Range} range Range to check.\nfunction isTopBlockInRange( block: Node, range: Range ) {\n\tconst parentBlock = findAncestorBlock( block );\n\n\tif ( !parentBlock ) {\n\t\treturn true;\n\t}\n\n\t// Add loose flag to check as parentRange can be equal to range.\n\tconst isParentInRange = range.containsRange( Range._createOn( parentBlock ), true );\n\n\treturn !isParentInRange;\n}\n\n// Returns first ancestor block of a node.\n//\n// @param {module:engine/model/node~Node} node\n// @returns {module:engine/model/node~Node|undefined}\nfunction findAncestorBlock( node: Node | DocumentFragment ) {\n\tconst schema = node.root.document!.model.schema;\n\n\tlet parent = node.parent;\n\n\twhile ( parent ) {\n\t\tif ( schema.isBlock( parent ) ) {\n\t\t\treturn parent as Element;\n\t\t}\n\n\t\tparent = parent.parent;\n\t}\n}\n\n/**\n * An entity that is used to set selection.\n *\n * See also {@link module:engine/model/selection~Selection#setTo}\n *\n * @typedef {\n *     module:engine/model/selection~Selection|\n *     module:engine/model/documentselection~DocumentSelection|\n *     module:engine/model/position~Position|\n *     module:engine/model/range~Range|\n *     module:engine/model/node~Node|\n *     Iterable.<module:engine/model/range~Range>|\n *     null\n * } module:engine/model/selection~Selectable\n */\nexport type Selectable = Selection | DocumentSelection | Position | Range | Node | Iterable<Range> | null;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/liverange\n */\n\nimport Range from './range';\n\nimport type { ModelApplyOperationEvent } from './model';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Operation from './operation/operation';\nimport type Position from './position';\n\nimport { EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * `LiveRange` is a type of {@link module:engine/model/range~Range Range}\n * that updates itself as {@link module:engine/model/document~Document document}\n * is changed through operations. It may be used as a bookmark.\n *\n * **Note:** Be very careful when dealing with `LiveRange`. Each `LiveRange` instance bind events that might\n * have to be unbound. Use {@link module:engine/model/liverange~LiveRange#detach detach} whenever you don't need `LiveRange` anymore.\n */\nexport default class LiveRange extends EmitterMixin( Range ) {\n\t/**\n\t * Creates a live range.\n\t *\n\t * @see module:engine/model/range~Range\n\t */\n\tconstructor( start: Position, end?: Position | null ) {\n\t\tsuper( start, end );\n\n\t\tbindWithDocument.call( this );\n\t}\n\n\t/**\n\t * Unbinds all events previously bound by `LiveRange`. Use it whenever you don't need `LiveRange` instance\n\t * anymore (i.e. when leaving scope in which it was declared or before re-assigning variable that was\n\t * referring to it).\n\t */\n\tpublic detach(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/range~Range range instance} that is equal to this live range.\n\t *\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic toRange(): Range {\n\t\treturn new Range( this.start, this.end );\n\t}\n\n\t/**\n\t * Creates a `LiveRange` instance that is equal to the given range.\n\t *\n\t * @param {module:engine/model/range~Range} range\n\t * @returns {module:engine/model/liverange~LiveRange}\n\t */\n\tpublic static fromRange( range: Range ): LiveRange {\n\t\treturn new LiveRange( range.start, range.end );\n\t}\n\n\t/**\n\t * @see module:engine/model/range~Range._createIn\n\t * @static\n\t * @internal\n\t * @protected\n\t * @method module:engine/model/liverange~LiveRange._createIn\n\t * @param {module:engine/model/element~Element} element\n\t * @returns {module:engine/model/liverange~LiveRange}\n\t */\n\n\tdeclare public static readonly _createIn: ( element: Element | DocumentFragment ) => LiveRange;\n\n\t/**\n\t * @see module:engine/model/range~Range._createOn\n\t * @static\n\t * @internal\n\t * @protected\n\t * @method module:engine/model/liverange~LiveRange._createOn\n\t * @param {module:engine/model/item~Item} element\n\t * @returns {module:engine/model/liverange~LiveRange}\n\t */\n\n\tdeclare public static readonly _createOn: ( element: Item | DocumentFragment ) => LiveRange;\n\n\t/**\n\t * @see module:engine/model/range~Range._createFromPositionAndShift\n\t * @static\n\t * @internal\n\t * @protected\n\t * @method module:engine/model/liverange~LiveRange._createFromPositionAndShift\n\t * @param {module:engine/model/position~Position} position\n\t * @param {Number} shift\n\t * @returns {module:engine/model/liverange~LiveRange}\n\t */\n\n\tdeclare public static readonly _createFromPositionAndShift: ( position: Position, shift: number ) => LiveRange;\n\n\t/**\n\t * Fired when `LiveRange` instance boundaries have changed due to changes in the\n\t * {@link module:engine/model/document~Document document}.\n\t *\n\t * @event change:range\n\t * @param {module:engine/model/range~Range} oldRange Range with start and end position equal to start and end position of this live\n\t * range before it got changed.\n\t * @param {Object} data Object with additional information about the change.\n\t * @param {module:engine/model/position~Position|null} data.deletionPosition Source position for remove and merge changes.\n\t * Available if the range was moved to the graveyard root, `null` otherwise.\n\t */\n\n\t/**\n\t * Fired when `LiveRange` instance boundaries have not changed after a change in {@link module:engine/model/document~Document document}\n\t * but the change took place inside the range, effectively changing its content.\n\t *\n\t * @event change:content\n\t * @param {module:engine/model/range~Range} range Range with start and end position equal to start and end position of\n\t * change range.\n\t * @param {Object} data Object with additional information about the change.\n\t * @param {null} data.deletionPosition Due to the nature of this event, this property is always set to `null`. It is passed\n\t * for compatibility with the {@link module:engine/model/liverange~LiveRange#event:change:range} event.\n\t */\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tliveRange.is( 'range' ); // -> true\n *\t\tliveRange.is( 'model:range' ); // -> true\n *\t\tliveRange.is( 'liveRange' ); // -> true\n *\t\tliveRange.is( 'model:liveRange' ); // -> true\n *\n *\t\tliveRange.is( 'view:range' ); // -> false\n *\t\tliveRange.is( 'documentSelection' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nLiveRange.prototype.is = function( type: string ): boolean {\n\treturn type === 'liveRange' || type === 'model:liveRange' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype == 'range' || type === 'model:range';\n};\n\nexport type LiveRangeChangeEvent = {\n\tname: 'change' | 'change:range' | 'change:content';\n\targs: [ range: Range, data: { deletionPosition: Position | null } ];\n};\n\n// Binds this `LiveRange` to the {@link module:engine/model/document~Document document}\n// that owns this range's {@link module:engine/model/range~Range#root root}.\n//\n// @private\nfunction bindWithDocument( this: LiveRange ) {\n\tthis.listenTo<ModelApplyOperationEvent>(\n\t\tthis.root.document!.model,\n\t\t'applyOperation',\n\t\t( event, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( !operation.isDocumentOperation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\ttransform.call( this, operation );\n\t\t},\n\t\t{ priority: 'low' }\n\t);\n}\n\n// Updates this range accordingly to the updates applied to the model. Bases on change events.\n//\n// @private\n// @param {module:engine/model/operation/operation~Operation} operation Executed operation.\nfunction transform( this: LiveRange, operation: Operation ) {\n\t// Transform the range by the operation. Join the result ranges if needed.\n\tconst ranges = this.getTransformedByOperation( operation );\n\tconst result = Range._createFromRanges( ranges );\n\n\tconst boundariesChanged = !result.isEqual( this );\n\tconst contentChanged = doesOperationChangeRangeContent( this, operation );\n\n\tlet deletionPosition = null;\n\n\tif ( boundariesChanged ) {\n\t\t// If range boundaries have changed, fire `change:range` event.\n\t\t//\n\t\tif ( result.root.rootName == '$graveyard' ) {\n\t\t\t// If the range was moved to the graveyard root, set `deletionPosition`.\n\t\t\tif ( operation.type == 'remove' ) {\n\t\t\t\tdeletionPosition = ( operation as MoveOperation ).sourcePosition;\n\t\t\t} else {\n\t\t\t\t// Merge operation.\n\t\t\t\tdeletionPosition = ( operation as MergeOperation ).deletionPosition;\n\t\t\t}\n\t\t}\n\n\t\tconst oldRange = this.toRange();\n\n\t\t( this as any ).start = result.start;\n\t\t( this as any ).end = result.end;\n\n\t\tthis.fire<LiveRangeChangeEvent>( 'change:range', oldRange, { deletionPosition } );\n\t} else if ( contentChanged ) {\n\t\t// If range boundaries have not changed, but there was change inside the range, fire `change:content` event.\n\t\tthis.fire<LiveRangeChangeEvent>( 'change:content', this.toRange(), { deletionPosition } );\n\t}\n}\n\n// Checks whether given operation changes something inside the range (even if it does not change boundaries).\n//\n// @private\n// @param {module:engine/model/range~Range} range Range to check.\n// @param {module:engine/model/operation/operation~Operation} operation Executed operation.\n// @returns {Boolean}\nfunction doesOperationChangeRangeContent( range: Range, operation: any ) {\n\tswitch ( operation.type ) {\n\t\tcase 'insert':\n\t\t\treturn range.containsPosition( operation.position );\n\t\tcase 'move':\n\t\tcase 'remove':\n\t\tcase 'reinsert':\n\t\tcase 'merge':\n\t\t\treturn range.containsPosition( operation.sourcePosition ) ||\n\t\t\t\trange.start.isEqual( operation.sourcePosition ) ||\n\t\t\t\trange.containsPosition( operation.targetPosition );\n\t\tcase 'split':\n\t\t\treturn range.containsPosition( operation.splitPosition ) || range.containsPosition( operation.insertionPosition );\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/documentselection\n */\n\nimport TypeCheckable from './typecheckable';\nimport LiveRange from './liverange';\nimport Selection, {\n\ttype SelectionChangeAttributeEvent,\n\ttype SelectionChangeRangeEvent\n} from './selection';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type { default as Document, DocumentChangeEvent } from './document';\nimport type { default as Model, ModelApplyOperationEvent } from './model';\nimport type { Marker, MarkerCollectionUpdateEvent } from './markercollection';\nimport type Batch from './batch';\nimport type Element from './element';\nimport type Item from './item';\nimport type Position from './position';\nimport type Range from './range';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tEmitterMixin,\n\ttoMap,\n\tuid\n} from '@ckeditor/ckeditor5-utils';\n\nconst storePrefix = 'selection:';\n\n/**\n * `DocumentSelection` is a special selection which is used as the\n * {@link module:engine/model/document~Document#selection document's selection}.\n * There can be only one instance of `DocumentSelection` per document.\n *\n * Document selection can only be changed by using the {@link module:engine/model/writer~Writer} instance\n * inside the {@link module:engine/model/model~Model#change `change()`} block, as it provides a secure way to modify model.\n *\n * `DocumentSelection` is automatically updated upon changes in the {@link module:engine/model/document~Document document}\n * to always contain valid ranges. Its attributes are inherited from the text unless set explicitly.\n *\n * Differences between {@link module:engine/model/selection~Selection} and `DocumentSelection` are:\n * * there is always a range in `DocumentSelection` - even if no ranges were added there is a \"default range\"\n * present in the selection,\n * * ranges added to this selection updates automatically when the document changes,\n * * attributes of `DocumentSelection` are updated automatically according to selection ranges.\n *\n * Since `DocumentSelection` uses {@link module:engine/model/liverange~LiveRange live ranges}\n * and is updated when {@link module:engine/model/document~Document document}\n * changes, it cannot be set on {@link module:engine/model/node~Node nodes}\n * that are inside {@link module:engine/model/documentfragment~DocumentFragment document fragment}.\n * If you need to represent a selection in document fragment,\n * use {@link module:engine/model/selection~Selection Selection class} instead.\n *\n * @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default class DocumentSelection extends EmitterMixin( TypeCheckable ) {\n\tprotected _selection: LiveSelection;\n\n\t/**\n\t * Creates an empty live selection for given {@link module:engine/model/document~Document}.\n\t *\n\t * @param {module:engine/model/document~Document} doc Document which owns this selection.\n\t */\n\tconstructor( doc: Document ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Selection used internally by that class (`DocumentSelection` is a proxy to that selection).\n\t\t *\n\t\t * @protected\n\t\t */\n\t\tthis._selection = new LiveSelection( doc );\n\n\t\tthis._selection.delegate( 'change:range' ).to( this );\n\t\tthis._selection.delegate( 'change:attribute' ).to( this );\n\t\tthis._selection.delegate( 'change:marker' ).to( this );\n\t}\n\n\t/**\n\t * Returns whether the selection is collapsed. Selection is collapsed when there is exactly one range which is\n\t * collapsed.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this._selection.isCollapsed;\n\t}\n\n\t/**\n\t * Selection anchor. Anchor may be described as a position where the most recent part of the selection starts.\n\t * Together with {@link #focus} they define the direction of selection, which is important\n\t * when expanding/shrinking selection. Anchor is always {@link module:engine/model/range~Range#start start} or\n\t * {@link module:engine/model/range~Range#end end} position of the most recently added range.\n\t *\n\t * Is set to `null` if there are no ranges in selection.\n\t *\n\t * @see #focus\n\t * @readonly\n\t * @type {module:engine/model/position~Position|null}\n\t */\n\tpublic get anchor(): Position | null {\n\t\treturn this._selection.anchor;\n\t}\n\n\t/**\n\t * Selection focus. Focus is a position where the selection ends.\n\t *\n\t * Is set to `null` if there are no ranges in selection.\n\t *\n\t * @see #anchor\n\t * @readonly\n\t * @type {module:engine/model/position~Position|null}\n\t */\n\tpublic get focus(): Position | null {\n\t\treturn this._selection.focus;\n\t}\n\n\t/**\n\t * Returns number of ranges in selection.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._selection.rangeCount;\n\t}\n\n\t/**\n\t * Describes whether `Documentselection` has own range(s) set, or if it is defaulted to\n\t * {@link module:engine/model/document~Document#_getDefaultRange document's default range}.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get hasOwnRange(): boolean {\n\t\treturn this._selection.hasOwnRange;\n\t}\n\n\t/**\n\t * Specifies whether the {@link #focus}\n\t * precedes {@link #anchor}.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn this._selection.isBackward;\n\t}\n\n\t/**\n\t * Describes whether the gravity is overridden (using {@link module:engine/model/writer~Writer#overrideSelectionGravity}) or not.\n\t *\n\t * Note that the gravity remains overridden as long as will not be restored the same number of times as it was overridden.\n\t *\n\t * @readonly\n\t * @returns {Boolean}\n\t */\n\tpublic get isGravityOverridden(): boolean {\n\t\treturn this._selection.isGravityOverridden;\n\t}\n\n\t/**\n\t * A collection of selection {@link module:engine/model/markercollection~Marker markers}.\n\t * Marker is a selection marker when selection range is inside the marker range.\n\t *\n\t * **Note**: Only markers from {@link ~DocumentSelection#observeMarkers observed markers groups} are collected.\n\t *\n\t * @readonly\n\t * @type {module:utils/collection~Collection}\n\t */\n\tpublic get markers(): Collection<Marker> {\n\t\treturn this._selection.markers;\n\t}\n\n\t/**\n\t * Used for the compatibility with the {@link module:engine/model/selection~Selection#isEqual} method.\n\t *\n\t * @internal\n\t * @protected\n\t */\n\tpublic get _ranges(): Array<Range> {\n\t\treturn ( this._selection as any )._ranges;\n\t}\n\n\t/**\n\t * Returns an iterable that iterates over copies of selection ranges.\n\t *\n\t * @returns {Iterable.<module:engine/model/range~Range>}\n\t */\n\tpublic getRanges(): IterableIterator<Range> {\n\t\treturn this._selection.getRanges();\n\t}\n\n\t/**\n\t * Returns the first position in the selection.\n\t * First position is the position that {@link module:engine/model/position~Position#isBefore is before}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/position~Position|null}\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\treturn this._selection.getFirstPosition();\n\t}\n\n\t/**\n\t * Returns the last position in the selection.\n\t * Last position is the position that {@link module:engine/model/position~Position#isAfter is after}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/position~Position|null}\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\treturn this._selection.getLastPosition();\n\t}\n\n\t/**\n\t * Returns a copy of the first range in the selection.\n\t * First range is the one which {@link module:engine/model/range~Range#start start} position\n\t * {@link module:engine/model/position~Position#isBefore is before} start position of all other ranges\n\t * (not to confuse with the first range added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/range~Range|null}\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\treturn this._selection.getFirstRange();\n\t}\n\n\t/**\n\t * Returns a copy of the last range in the selection.\n\t * Last range is the one which {@link module:engine/model/range~Range#end end} position\n\t * {@link module:engine/model/position~Position#isAfter is after} end position of all other ranges (not to confuse with the range most\n\t * recently added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t *\n\t * @returns {module:engine/model/range~Range|null}\n\t */\n\tpublic getLastRange(): Range | null {\n\t\treturn this._selection.getLastRange();\n\t}\n\n\t/**\n\t * Gets elements of type {@link module:engine/model/schema~Schema#isBlock \"block\"} touched by the selection.\n\t *\n\t * This method's result can be used for example to apply block styling to all blocks covered by this selection.\n\t *\n\t * **Note:** `getSelectedBlocks()` returns blocks that are nested in other non-block elements\n\t * but will not return blocks nested in other blocks.\n\t *\n\t * In this case the function will return exactly all 3 paragraphs (note: `<blockQuote>` is not a block itself):\n\t *\n\t *\t\t<paragraph>[a</paragraph>\n\t *\t\t<blockQuote>\n\t *\t\t\t<paragraph>b</paragraph>\n\t *\t\t</blockQuote>\n\t *\t\t<paragraph>c]d</paragraph>\n\t *\n\t * In this case the paragraph will also be returned, despite the collapsed selection:\n\t *\n\t *\t\t<paragraph>[]a</paragraph>\n\t *\n\t * In such a scenario, however, only blocks A, B & E will be returned as blocks C & D are nested in block B:\n\t *\n\t *\t\t[<blockA></blockA>\n\t *\t\t<blockB>\n\t *\t\t\t<blockC></blockC>\n\t *\t\t\t<blockD></blockD>\n\t *\t\t</blockB>\n\t *\t\t<blockE></blockE>]\n\t *\n\t * If the selection is inside a block all the inner blocks (A & B) are returned:\n\t *\n\t * \t\t<block>\n\t *\t\t\t<blockA>[a</blockA>\n\t * \t\t\t<blockB>b]</blockB>\n\t * \t\t</block>\n\t *\n\t * **Special case**: If a selection ends at the beginning of a block, that block is not returned as from user perspective\n\t * this block wasn't selected. See [#984](https://github.com/ckeditor/ckeditor5-engine/issues/984) for more details.\n\t *\n\t *\t\t<paragraph>[a</paragraph>\n\t *\t\t<paragraph>b</paragraph>\n\t *\t\t<paragraph>]c</paragraph> // this block will not be returned\n\t *\n\t * @returns {Iterable.<module:engine/model/element~Element>}\n\t */\n\tpublic getSelectedBlocks(): IterableIterator<Element> {\n\t\treturn this._selection.getSelectedBlocks();\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/model/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t *\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\treturn this._selection.getSelectedElement();\n\t}\n\n\t/**\n\t * Checks whether the selection contains the entire content of the given element. This means that selection must start\n\t * at a position {@link module:engine/model/position~Position#isTouching touching} the element's start and ends at position\n\t * touching the element's end.\n\t *\n\t * By default, this method will check whether the entire content of the selection's current root is selected.\n\t * Useful to check if e.g. the user has just pressed <kbd>Ctrl</kbd> + <kbd>A</kbd>.\n\t *\n\t * @param {module:engine/model/element~Element} [element=this.anchor.root]\n\t * @returns {Boolean}\n\t */\n\tpublic containsEntireContent( element: Element ): boolean {\n\t\treturn this._selection.containsEntireContent( element );\n\t}\n\n\t/**\n\t * Unbinds all events previously bound by document selection.\n\t */\n\tpublic destroy(): void {\n\t\tthis._selection.destroy();\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attribute keys.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this._selection.getAttributeKeys();\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t *\n\t * @returns {Iterable.<*>}\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this._selection.getAttributes();\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on the selection.\n\t *\n\t * @param {String} key Key of attribute to look for.\n\t * @returns {*} Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this._selection.getAttribute( key );\n\t}\n\n\t/**\n\t * Checks if the selection has an attribute for given key.\n\t *\n\t * @param {String} key Key of attribute to check.\n\t * @returns {Boolean} `true` if attribute with given key is set on selection, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this._selection.hasAttribute( key );\n\t}\n\n\t/**\n\t * Refreshes selection attributes and markers according to the current position in the model.\n\t */\n\tpublic refresh(): void {\n\t\tthis._selection.updateMarkers();\n\t\tthis._selection._updateAttributes( false );\n\t}\n\n\t/**\n\t * Registers a marker group prefix or a marker name to be collected in the\n\t * {@link ~DocumentSelection#markers selection markers collection}.\n\t *\n\t * See also {@link module:engine/model/markercollection~MarkerCollection#getMarkersGroup `MarkerCollection#getMarkersGroup()`}.\n\t *\n\t * @param {String} prefixOrName The marker group prefix or marker name.\n\t */\n\tpublic observeMarkers( prefixOrName: string ): void {\n\t\tthis._selection.observeMarkers( prefixOrName );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/model/documentselection~DocumentSelection#focus} to the specified location.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#setSelectionFocus} method.\n\t *\n\t * The location can be specified in the same form as\n\t * {@link module:engine/model/writer~Writer#createPositionAt writer.createPositionAt()} parameters.\n\t *\n\t * @see module:engine/model/writer~Writer#setSelectionFocus\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic _setFocus( itemOrPosition: Item | Position, offset?: number | 'end' | 'before' | 'after' ): void {\n\t\tthis._selection.setFocus( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/model/selection~Selectable selectable}.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#setSelection} method.\n\t *\n\t * @see module:engine/model/writer~Writer#setSelection\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t */\n\tpublic _setTo( ...args: Parameters<Selection[ 'setTo' ]> ): void {\n\t\tthis._selection.setTo( ...args );\n\t}\n\n\t/**\n\t * Sets attribute on the selection. If attribute with the same key already is set, it's value is overwritten.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#setSelectionAttribute} method.\n\t *\n\t * @see module:engine/model/writer~Writer#setSelectionAttribute\n\t * @internal\n\t * @protected\n\t * @param {String} key Key of the attribute to set.\n\t * @param {*} value Attribute value.\n\t */\n\tpublic _setAttribute( key: string, value: unknown ): void {\n\t\tthis._selection.setAttribute( key, value );\n\t}\n\n\t/**\n\t * Removes an attribute with given key from the selection.\n\t * If the given attribute was set on the selection, fires the {@link module:engine/model/selection~Selection#event:change:range}\n\t * event with removed attribute key.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#removeSelectionAttribute} method.\n\t *\n\t * @see module:engine/model/writer~Writer#removeSelectionAttribute\n\t * @internal\n\t * @protected\n\t * @param {String} key Key of the attribute to remove.\n\t */\n\tpublic _removeAttribute( key: string ): void {\n\t\tthis._selection.removeAttribute( key );\n\t}\n\n\t/**\n\t * Returns an iterable that iterates through all selection attributes stored in current selection's parent.\n\t *\n\t * @protected\n\t * @returns {Iterable.<*>}\n\t */\n\tprotected _getStoredAttributes(): Iterable<unknown> {\n\t\treturn this._selection.getStoredAttributes();\n\t}\n\n\t/**\n\t * Temporarily changes the gravity of the selection from the left to the right.\n\t *\n\t * The gravity defines from which direction the selection inherits its attributes. If it's the default left\n\t * gravity, the selection (after being moved by the the user) inherits attributes from its left hand side.\n\t * This method allows to temporarily override this behavior by forcing the gravity to the right.\n\t *\n\t * It returns an unique identifier which is required to restore the gravity. It guarantees the symmetry\n\t * of the process.\n\t *\n\t * @see module:engine/model/writer~Writer#overrideSelectionGravity\n\t * @internal\n\t * @protected\n\t * @returns {String} The unique id which allows restoring the gravity.\n\t */\n\tpublic _overrideGravity(): string {\n\t\treturn this._selection.overrideGravity();\n\t}\n\n\t/**\n\t * Restores the {@link ~DocumentSelection#_overrideGravity overridden gravity}.\n\t *\n\t * Restoring the gravity is only possible using the unique identifier returned by\n\t * {@link ~DocumentSelection#_overrideGravity}. Note that the gravity remains overridden as long as won't be restored\n\t * the same number of times it was overridden.\n\t *\n\t * @see module:engine/model/writer~Writer#restoreSelectionGravity\n\t * @internal\n\t * @protected\n\t * @param {String} uid The unique id returned by {@link #_overrideGravity}.\n\t */\n\tpublic _restoreGravity( uid: string ): void {\n\t\tthis._selection.restoreGravity( uid );\n\t}\n\n\t/**\n\t * Generates and returns an attribute key for selection attributes store, basing on original attribute key.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {String} key Attribute key to convert.\n\t * @returns {String} Converted attribute key, applicable for selection store.\n\t */\n\tpublic static _getStoreAttributeKey( key: string ): string {\n\t\treturn storePrefix + key;\n\t}\n\n\t/**\n\t * Checks whether the given attribute key is an attribute stored on an element.\n\t *\n\t * @protected\n\t * @param {String} key\n\t * @returns {Boolean}\n\t */\n\tprotected static _isStoreAttributeKey( key: string ): boolean {\n\t\treturn key.startsWith( storePrefix );\n\t}\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\tselection.is( 'selection' ); // -> true\n *\t\tselection.is( 'documentSelection' ); // -> true\n *\t\tselection.is( 'model:selection' ); // -> true\n *\t\tselection.is( 'model:documentSelection' ); // -> true\n *\n *\t\tselection.is( 'view:selection' ); // -> false\n *\t\tselection.is( 'element' ); // -> false\n *\t\tselection.is( 'node' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nDocumentSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' ||\n\t\ttype == 'model:selection' ||\n\t\ttype == 'documentSelection' ||\n\t\ttype == 'model:documentSelection';\n};\n\n/**\n * Fired when selection range(s) changed.\n *\n * @event change:range\n * @param {Boolean} directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its position\n * was directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n * changed because the structure of the model has been changed (which means an indirect change).\n * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n * which mean that they are not updated once the document changes.\n */\n\nexport type DocumentSelectionChangeRangeEvent = SelectionChangeRangeEvent;\n\n/**\n * Fired when selection attribute changed.\n *\n * @event change:attribute\n * @param {Boolean} directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its attributes\n * were directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n * changed in the model and its attributes were refreshed (which means an indirect change).\n * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n * which mean that they are not updated once the document changes.\n * @param {Array.<String>} attributeKeys Array containing keys of attributes that changed.\n*/\n\nexport type DocumentSelectionChangeAttributeEvent = SelectionChangeAttributeEvent;\n\n/**\n * Fired when selection marker(s) changed.\n *\n * @event change:marker\n * @param {Boolean} directChange This is always set to `false` in case of `change:marker` event as there is no possibility\n * to change markers directly through {@link module:engine/model/documentselection~DocumentSelection} API.\n * See also {@link module:engine/model/documentselection~DocumentSelection#event:change:range} and\n * {@link module:engine/model/documentselection~DocumentSelection#event:change:attribute}.\n * @param {Array.<module:engine/model/markercollection~Marker>} oldMarkers Markers in which the selection was before the change.\n */\n\nexport type DocumentSelectionChangeMarkerEvent = {\n\tname: 'change:marker';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\toldMarkers: Array<Marker>;\n\t} ];\n};\n\nexport type DocumentSelectionChangeEvent = {\n\tname: 'change' | 'change:attribute' | 'change:marker' | 'change:range';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\tattributeKeys?: Array<string>;\n\t\toldMarkers?: Array<Marker>;\n\t} ];\n};\n\n// `LiveSelection` is used internally by {@link module:engine/model/documentselection~DocumentSelection} and shouldn't be used directly.\n//\n// LiveSelection` is automatically updated upon changes in the {@link module:engine/model/document~Document document}\n// to always contain valid ranges. Its attributes are inherited from the text unless set explicitly.\n//\n// Differences between {@link module:engine/model/selection~Selection} and `LiveSelection` are:\n// * there is always a range in `LiveSelection` - even if no ranges were added there is a \"default range\"\n// present in the selection,\n// * ranges added to this selection updates automatically when the document changes,\n// * attributes of `LiveSelection` are updated automatically according to selection ranges.\n//\n// @extends module:engine/model/selection~Selection\n//\nclass LiveSelection extends Selection {\n\tpublic markers: Collection<Marker>;\n\n\tprotected _model: Model;\n\tprotected _document: Document;\n\n\t/** @internal */\n\tpublic declare _ranges: Array<LiveRange>;\n\n\tprivate _attributePriority: Map<string, 'low' | 'normal'>;\n\tprivate _selectionRestorePosition: Position | null;\n\tprivate _hasChangedRange: boolean;\n\tprivate _overriddenGravityRegister: Set<string>;\n\tprivate _observedMarkers: Set<string>;\n\n\t// Creates an empty live selection for given {@link module:engine/model/document~Document}.\n\t// @param {module:engine/model/document~Document} doc Document which owns this selection.\n\tconstructor( doc: Document ) {\n\t\tsuper();\n\n\t\t// List of selection markers.\n\t\t// Marker is a selection marker when selection range is inside the marker range.\n\t\t//\n\t\t// @type {module:utils/collection~Collection}\n\t\tthis.markers = new Collection( { idProperty: 'name' } );\n\n\t\t// Document which owns this selection.\n\t\t//\n\t\t// @protected\n\t\t// @member {module:engine/model/model~Model}\n\t\tthis._model = doc.model;\n\n\t\t// Document which owns this selection.\n\t\t//\n\t\t// @protected\n\t\t// @member {module:engine/model/document~Document}\n\t\tthis._document = doc;\n\n\t\t// Keeps mapping of attribute name to priority with which the attribute got modified (added/changed/removed)\n\t\t// last time. Possible values of priority are: `'low'` and `'normal'`.\n\t\t//\n\t\t// Priorities are used by internal `LiveSelection` mechanisms. All attributes set using `LiveSelection`\n\t\t// attributes API are set with `'normal'` priority.\n\t\t//\n\t\t// @private\n\t\t// @member {Map} module:engine/model/liveselection~LiveSelection#_attributePriority\n\t\tthis._attributePriority = new Map();\n\n\t\t// Position to which the selection should be set if the last selection range was moved to the graveyard.\n\t\t// @private\n\t\t// @member {module:engine/model/position~Position} module:engine/model/liveselection~LiveSelection#_selectionRestorePosition\n\t\tthis._selectionRestorePosition = null;\n\n\t\t// Flag that informs whether the selection ranges have changed. It is changed on true when `LiveRange#change:range` event is fired.\n\t\t// @private\n\t\t// @member {Array} module:engine/model/liveselection~LiveSelection#_hasChangedRange\n\t\tthis._hasChangedRange = false;\n\n\t\t// Each overriding gravity adds an UID to the set and each removal removes it.\n\t\t// Gravity is overridden when there's at least one UID in the set.\n\t\t// Gravity is restored when the set is empty.\n\t\t// This is to prevent conflicts when gravity is overridden by more than one feature at the same time.\n\t\t// @private\n\t\t// @type {Set}\n\t\tthis._overriddenGravityRegister = new Set();\n\n\t\t// Prefixes of marker names that should affect `LiveSelection#markers` collection.\n\t\t// @private\n\t\t// @type {Set}\n\t\tthis._observedMarkers = new Set();\n\n\t\t// Ensure selection is correct after each operation.\n\t\tthis.listenTo<ModelApplyOperationEvent>( this._model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( !operation.isDocumentOperation || operation.type == 'marker' || operation.type == 'rename' || operation.type == 'noop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Fix selection if the last range was removed from it and we have a position to which we can restore the selection.\n\t\t\tif ( this._ranges.length == 0 && this._selectionRestorePosition ) {\n\t\t\t\tthis._fixGraveyardSelection( this._selectionRestorePosition );\n\t\t\t}\n\n\t\t\t// \"Forget\" the restore position even if it was not \"used\".\n\t\t\tthis._selectionRestorePosition = null;\n\n\t\t\tif ( this._hasChangedRange ) {\n\t\t\t\tthis._hasChangedRange = false;\n\t\t\t\tthis.fire<DocumentSelectionChangeRangeEvent>( 'change:range', { directChange: false } );\n\t\t\t}\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Ensure selection is correct and up to date after each range change.\n\t\tthis.on<DocumentSelectionChangeRangeEvent>( 'change:range', () => {\n\t\t\tthis._validateSelectionRanges( this.getRanges() );\n\t\t} );\n\n\t\t// Update markers data stored by the selection after each marker change.\n\t\t// This handles only marker changes done through marker operations (not model tree changes).\n\t\tthis.listenTo<MarkerCollectionUpdateEvent>( this._model.markers, 'update', ( evt, marker, oldRange, newRange ) => {\n\t\t\tthis._updateMarker( marker, newRange );\n\t\t} );\n\n\t\t// Ensure selection is up to date after each change block.\n\t\tthis.listenTo<DocumentChangeEvent>( this._document, 'change', ( evt, batch ) => {\n\t\t\tclearAttributesStoredInElement( this._model, batch );\n\t\t} );\n\t}\n\n\tpublic override get isCollapsed(): boolean {\n\t\tconst length = this._ranges.length;\n\n\t\treturn length === 0 ? this._document._getDefaultRange().isCollapsed : super.isCollapsed;\n\t}\n\n\tpublic override get anchor(): Position {\n\t\treturn super.anchor || this._document._getDefaultRange().start;\n\t}\n\n\tpublic override get focus(): Position {\n\t\treturn super.focus || this._document._getDefaultRange().end;\n\t}\n\n\tpublic override get rangeCount(): number {\n\t\treturn this._ranges.length ? this._ranges.length : 1;\n\t}\n\n\t// Describes whether `LiveSelection` has own range(s) set, or if it is defaulted to\n\t// {@link module:engine/model/document~Document#_getDefaultRange document's default range}.\n\t//\n\t// @readonly\n\t// @type {Boolean}\n\tpublic get hasOwnRange(): boolean {\n\t\treturn this._ranges.length > 0;\n\t}\n\n\t// When set to `true` then selection attributes on node before the caret won't be taken\n\t// into consideration while updating selection attributes.\n\t//\n\t// @protected\n\t// @type {Boolean}\n\tpublic get isGravityOverridden(): boolean {\n\t\treturn !!this._overriddenGravityRegister.size;\n\t}\n\n\t// Unbinds all events previously bound by live selection.\n\tpublic destroy(): void {\n\t\tfor ( let i = 0; i < this._ranges.length; i++ ) {\n\t\t\tthis._ranges[ i ].detach();\n\t\t}\n\n\t\tthis.stopListening();\n\t}\n\n\tpublic override* getRanges(): IterableIterator<Range> {\n\t\tif ( this._ranges.length ) {\n\t\t\tyield* super.getRanges();\n\t\t} else {\n\t\t\tyield this._document._getDefaultRange();\n\t\t}\n\t}\n\n\tpublic override getFirstRange(): Range {\n\t\treturn super.getFirstRange() || this._document._getDefaultRange();\n\t}\n\n\tpublic override getLastRange(): Range {\n\t\treturn super.getLastRange() || this._document._getDefaultRange();\n\t}\n\n\tpublic override setTo( ...args: Parameters<Selection[ 'setTo' ]> ) {\n\t\tsuper.setTo( ...args );\n\t\tthis._updateAttributes( true );\n\t\tthis.updateMarkers();\n\t}\n\n\tpublic override setFocus( itemOrPosition: Item | Position, offset?: number | 'end' | 'before' | 'after' ): void {\n\t\tsuper.setFocus( itemOrPosition, offset );\n\t\tthis._updateAttributes( true );\n\t\tthis.updateMarkers();\n\t}\n\n\tpublic override setAttribute( key: string, value: unknown ): void {\n\t\tif ( this._setAttribute( key, value ) ) {\n\t\t\t// Fire event with exact data.\n\t\t\tconst attributeKeys = [ key ];\n\t\t\tthis.fire<DocumentSelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys, directChange: true } );\n\t\t}\n\t}\n\n\tpublic override removeAttribute( key: string ): void {\n\t\tif ( this._removeAttribute( key ) ) {\n\t\t\t// Fire event with exact data.\n\t\t\tconst attributeKeys = [ key ];\n\t\t\tthis.fire<DocumentSelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys, directChange: true } );\n\t\t}\n\t}\n\n\tpublic overrideGravity(): string {\n\t\tconst overrideUid = uid();\n\n\t\t// Remember that another overriding has been requested. It will need to be removed\n\t\t// before the gravity is to be restored.\n\t\tthis._overriddenGravityRegister.add( overrideUid );\n\n\t\tif ( this._overriddenGravityRegister.size === 1 ) {\n\t\t\tthis._updateAttributes( true );\n\t\t}\n\n\t\treturn overrideUid;\n\t}\n\n\tpublic restoreGravity( uid: string ): void {\n\t\tif ( !this._overriddenGravityRegister.has( uid ) ) {\n\t\t\t/**\n\t\t\t * Restoring gravity for an unknown UID is not possible. Make sure you are using a correct\n\t\t\t * UID obtained from the {@link module:engine/model/writer~Writer#overrideSelectionGravity} to restore.\n\t\t\t *\n\t\t\t * @error document-selection-gravity-wrong-restore\n\t\t\t * @param {String} uid The unique identifier returned by\n\t\t\t * {@link module:engine/model/documentselection~DocumentSelection#_overrideGravity}.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'document-selection-gravity-wrong-restore',\n\t\t\t\tthis,\n\t\t\t\t{ uid }\n\t\t\t);\n\t\t}\n\n\t\tthis._overriddenGravityRegister.delete( uid );\n\n\t\t// Restore gravity only when all overriding have been restored.\n\t\tif ( !this.isGravityOverridden ) {\n\t\t\tthis._updateAttributes( true );\n\t\t}\n\t}\n\n\tpublic observeMarkers( prefixOrName: string ): void {\n\t\tthis._observedMarkers.add( prefixOrName );\n\t\tthis.updateMarkers();\n\t}\n\n\tprotected override _replaceAllRanges( ranges: Array<Range> ): void {\n\t\tthis._validateSelectionRanges( ranges );\n\n\t\tsuper._replaceAllRanges( ranges );\n\t}\n\n\tprotected override _popRange(): void {\n\t\tthis._ranges.pop()!.detach();\n\t}\n\n\tprotected override _pushRange( range: Range ): void {\n\t\tconst liveRange = this._prepareRange( range );\n\n\t\t// `undefined` is returned when given `range` is in graveyard root.\n\t\tif ( liveRange ) {\n\t\t\tthis._ranges.push( liveRange );\n\t\t}\n\t}\n\n\tprivate _validateSelectionRanges( ranges: Iterable<Range> ) {\n\t\tfor ( const range of ranges ) {\n\t\t\tif ( !this._document._validateSelectionRange( range ) ) {\n\t\t\t\t/**\n\t\t\t\t * Range from {@link module:engine/model/documentselection~DocumentSelection document selection}\n\t\t\t\t * starts or ends at incorrect position.\n\t\t\t\t *\n\t\t\t\t * @error document-selection-wrong-position\n\t\t\t\t * @param {module:engine/model/range~Range} range\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'document-selection-wrong-position',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ range }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\t// Prepares given range to be added to selection. Checks if it is correct,\n\t// converts it to {@link module:engine/model/liverange~LiveRange LiveRange}\n\t// and sets listeners listening to the range's change event.\n\t//\n\t// @private\n\t// @param {module:engine/model/range~Range} range\n\tprivate _prepareRange( range: Range ): LiveRange | undefined {\n\t\tthis._checkRange( range );\n\n\t\tif ( range.root == this._document.graveyard ) {\n\t\t\t// @if CK_DEBUG // console.warn( 'Trying to add a Range that is in the graveyard root. Range rejected.' );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst liveRange = LiveRange.fromRange( range );\n\n\t\t// If selection range is moved to the graveyard remove it from the selection object.\n\t\t// Also, save some data that can be used to restore selection later, on `Model#applyOperation` event.\n\t\tliveRange.on( 'change:range', ( evt, oldRange, data ) => {\n\t\t\tthis._hasChangedRange = true;\n\n\t\t\tif ( liveRange.root == this._document.graveyard ) {\n\t\t\t\tthis._selectionRestorePosition = data.deletionPosition;\n\n\t\t\t\tconst index = this._ranges.indexOf( liveRange );\n\t\t\t\tthis._ranges.splice( index, 1 );\n\t\t\t\tliveRange.detach();\n\t\t\t}\n\t\t} );\n\n\t\treturn liveRange;\n\t}\n\n\tpublic updateMarkers(): void {\n\t\tif ( !this._observedMarkers.size ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst markers = [];\n\t\tlet changed = false;\n\n\t\tfor ( const marker of this._model.markers ) {\n\t\t\tconst markerGroup = marker.name.split( ':', 1 )[ 0 ];\n\n\t\t\tif ( !this._observedMarkers.has( markerGroup ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst markerRange = marker.getRange();\n\n\t\t\tfor ( const selectionRange of this.getRanges() ) {\n\t\t\t\tif ( markerRange.containsRange( selectionRange, !selectionRange.isCollapsed ) ) {\n\t\t\t\t\tmarkers.push( marker );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst oldMarkers = Array.from( this.markers );\n\n\t\tfor ( const marker of markers ) {\n\t\t\tif ( !this.markers.has( marker ) ) {\n\t\t\t\tthis.markers.add( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t}\n\n\t\tfor ( const marker of Array.from( this.markers ) ) {\n\t\t\tif ( !markers.includes( marker ) ) {\n\t\t\t\tthis.markers.remove( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t}\n\n\t\tif ( changed ) {\n\t\t\tthis.fire<DocumentSelectionChangeMarkerEvent>( 'change:marker', { oldMarkers, directChange: false } );\n\t\t}\n\t}\n\n\tprivate _updateMarker( marker: Marker, markerRange: Range | null ): void {\n\t\tconst markerGroup = marker.name.split( ':', 1 )[ 0 ];\n\n\t\tif ( !this._observedMarkers.has( markerGroup ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet changed = false;\n\n\t\tconst oldMarkers = Array.from( this.markers );\n\t\tconst hasMarker = this.markers.has( marker );\n\n\t\tif ( !markerRange ) {\n\t\t\tif ( hasMarker ) {\n\t\t\t\tthis.markers.remove( marker );\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t} else {\n\t\t\tlet contained = false;\n\n\t\t\tfor ( const selectionRange of this.getRanges() ) {\n\t\t\t\tif ( markerRange.containsRange( selectionRange, !selectionRange.isCollapsed ) ) {\n\t\t\t\t\tcontained = true;\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( contained && !hasMarker ) {\n\t\t\t\tthis.markers.add( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t} else if ( !contained && hasMarker ) {\n\t\t\t\tthis.markers.remove( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t}\n\n\t\tif ( changed ) {\n\t\t\tthis.fire<DocumentSelectionChangeMarkerEvent>( 'change:marker', { oldMarkers, directChange: false } );\n\t\t}\n\t}\n\n\t// Updates this selection attributes according to its ranges and the {@link module:engine/model/document~Document model document}.\n\t//\n\t// @protected\n\t// @param {Boolean} clearAll\n\t// @fires change:attribute\n\tpublic _updateAttributes( clearAll: boolean ): void {\n\t\tconst newAttributes = toMap( this._getSurroundingAttributes() );\n\t\tconst oldAttributes = toMap( this.getAttributes() );\n\n\t\tif ( clearAll ) {\n\t\t\t// If `clearAll` remove all attributes and reset priorities.\n\t\t\tthis._attributePriority = new Map();\n\t\t\tthis._attrs = new Map();\n\t\t} else {\n\t\t\t// If not, remove only attributes added with `low` priority.\n\t\t\tfor ( const [ key, priority ] of this._attributePriority ) {\n\t\t\t\tif ( priority == 'low' ) {\n\t\t\t\t\tthis._attrs.delete( key );\n\t\t\t\t\tthis._attributePriority.delete( key );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tthis._setAttributesTo( newAttributes );\n\n\t\t// Let's evaluate which attributes really changed.\n\t\tconst changed = [];\n\n\t\t// First, loop through all attributes that are set on selection right now.\n\t\t// Check which of them are different than old attributes.\n\t\tfor ( const [ newKey, newValue ] of this.getAttributes() ) {\n\t\t\tif ( !oldAttributes.has( newKey ) || oldAttributes.get( newKey ) !== newValue ) {\n\t\t\t\tchanged.push( newKey );\n\t\t\t}\n\t\t}\n\n\t\t// Then, check which of old attributes got removed.\n\t\tfor ( const [ oldKey ] of oldAttributes ) {\n\t\t\tif ( !this.hasAttribute( oldKey ) ) {\n\t\t\t\tchanged.push( oldKey );\n\t\t\t}\n\t\t}\n\n\t\t// Fire event with exact data (fire only if anything changed).\n\t\tif ( changed.length > 0 ) {\n\t\t\tthis.fire<DocumentSelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys: changed, directChange: false } );\n\t\t}\n\t}\n\n\t// Internal method for setting `LiveSelection` attribute. Supports attribute priorities (through `directChange`\n\t// parameter).\n\t//\n\t// @private\n\t// @param {String} key Attribute key.\n\t// @param {*} value Attribute value.\n\t// @param {Boolean} [directChange=true] `true` if the change is caused by `Selection` API, `false` if change\n\t// is caused by `Batch` API.\n\t// @returns {Boolean} Whether value has changed.\n\tprivate _setAttribute( key: string, value: unknown, directChange: boolean = true ): boolean {\n\t\tconst priority = directChange ? 'normal' : 'low';\n\n\t\tif ( priority == 'low' && this._attributePriority.get( key ) == 'normal' ) {\n\t\t\t// Priority too low.\n\t\t\treturn false;\n\t\t}\n\n\t\tconst oldValue = super.getAttribute( key );\n\n\t\t// Don't do anything if value has not changed.\n\t\tif ( oldValue === value ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tthis._attrs.set( key, value );\n\n\t\t// Update priorities map.\n\t\tthis._attributePriority.set( key, priority );\n\n\t\treturn true;\n\t}\n\n\t// Internal method for removing `LiveSelection` attribute. Supports attribute priorities (through `directChange`\n\t// parameter).\n\t//\n\t// NOTE: Even if attribute is not present in the selection but is provided to this method, it's priority will\n\t// be changed according to `directChange` parameter.\n\t//\n\t// @private\n\t// @param {String} key Attribute key.\n\t// @param {Boolean} [directChange=true] `true` if the change is caused by `Selection` API, `false` if change\n\t// is caused by `Batch` API.\n\t// @returns {Boolean} Whether attribute was removed. May not be true if such attributes didn't exist or the\n\t// existing attribute had higher priority.\n\tprivate _removeAttribute( key: string, directChange: boolean = true ): boolean {\n\t\tconst priority = directChange ? 'normal' : 'low';\n\n\t\tif ( priority == 'low' && this._attributePriority.get( key ) == 'normal' ) {\n\t\t\t// Priority too low.\n\t\t\treturn false;\n\t\t}\n\n\t\t// Update priorities map.\n\t\tthis._attributePriority.set( key, priority );\n\n\t\t// Don't do anything if value has not changed.\n\t\tif ( !super.hasAttribute( key ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tthis._attrs.delete( key );\n\n\t\treturn true;\n\t}\n\n\t// Internal method for setting multiple `LiveSelection` attributes. Supports attribute priorities (through\n\t// `directChange` parameter).\n\t//\n\t// @private\n\t// @param {Map.<String,*>} attrs Iterable object containing attributes to be set.\n\t// @returns {Set.<String>} Changed attribute keys.\n\tprivate _setAttributesTo( attrs: Map<string, unknown> ): Set<string> {\n\t\tconst changed = new Set<string>();\n\n\t\tfor ( const [ oldKey, oldValue ] of this.getAttributes() ) {\n\t\t\t// Do not remove attribute if attribute with same key and value is about to be set.\n\t\t\tif ( attrs.get( oldKey ) === oldValue ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// All rest attributes will be removed so changed attributes won't change .\n\t\t\tthis._removeAttribute( oldKey, false );\n\t\t}\n\n\t\tfor ( const [ key, value ] of attrs ) {\n\t\t\t// Attribute may not be set because of attributes or because same key/value is already added.\n\t\t\tconst gotAdded = this._setAttribute( key, value, false );\n\n\t\t\tif ( gotAdded ) {\n\t\t\t\tchanged.add( key );\n\t\t\t}\n\t\t}\n\n\t\treturn changed;\n\t}\n\n\t// Returns an iterable that iterates through all selection attributes stored in current selection's parent.\n\t//\n\t// @public\n\t// @returns {Iterable.<*>}\n\tpublic* getStoredAttributes(): IterableIterator<[ string, unknown ]> {\n\t\tconst selectionParent = this.getFirstPosition()!.parent as Element;\n\n\t\tif ( this.isCollapsed && selectionParent.isEmpty ) {\n\t\t\tfor ( const key of selectionParent.getAttributeKeys() ) {\n\t\t\t\tif ( key.startsWith( storePrefix ) ) {\n\t\t\t\t\tconst realKey = key.substr( storePrefix.length );\n\n\t\t\t\t\tyield [ realKey, selectionParent.getAttribute( key ) ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Checks model text nodes that are closest to the selection's first position and returns attributes of first\n\t// found element. If there are no text nodes in selection's first position parent, it returns selection\n\t// attributes stored in that parent.\n\t//\n\t// @private\n\t// @returns {Iterable.<*>} Collection of attributes.\n\tprivate _getSurroundingAttributes(): Iterable<[ string, unknown ]> | null {\n\t\tconst position = this.getFirstPosition()!;\n\t\tconst schema = this._model.schema;\n\n\t\tlet attrs = null;\n\n\t\tif ( !this.isCollapsed ) {\n\t\t\t// 1. If selection is a range...\n\t\t\tconst range = this.getFirstRange();\n\n\t\t\t// ...look for a first character node in that range and take attributes from it.\n\t\t\tfor ( const value of range ) {\n\t\t\t\t// If the item is an object, we don't want to get attributes from its children.\n\t\t\t\tif ( value.item.is( 'element' ) && schema.isObject( value.item ) ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tif ( value.type == 'text' ) {\n\t\t\t\t\tattrs = value.item.getAttributes();\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\t// 2. If the selection is a caret or the range does not contain a character node...\n\n\t\t\tconst nodeBefore = position.textNode ? position.textNode : position.nodeBefore;\n\t\t\tconst nodeAfter = position.textNode ? position.textNode : position.nodeAfter;\n\n\t\t\t// When gravity is overridden then don't take node before into consideration.\n\t\t\tif ( !this.isGravityOverridden ) {\n\t\t\t\t// ...look at the node before caret and take attributes from it if it is a character node.\n\t\t\t\tattrs = getAttrsIfCharacter( nodeBefore! );\n\t\t\t}\n\n\t\t\t// 3. If not, look at the node after caret...\n\t\t\tif ( !attrs ) {\n\t\t\t\tattrs = getAttrsIfCharacter( nodeAfter! );\n\t\t\t}\n\n\t\t\t// 4. If not, try to find the first character on the left, that is in the same node.\n\t\t\t// When gravity is overridden then don't take node before into consideration.\n\t\t\tif ( !this.isGravityOverridden && !attrs ) {\n\t\t\t\tlet node = nodeBefore;\n\n\t\t\t\twhile ( node && !schema.isInline( node ) && !attrs ) {\n\t\t\t\t\tnode = node.previousSibling;\n\t\t\t\t\tattrs = getAttrsIfCharacter( node! );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// 5. If not found, try to find the first character on the right, that is in the same node.\n\t\t\tif ( !attrs ) {\n\t\t\t\tlet node = nodeAfter;\n\n\t\t\t\twhile ( node && !schema.isInline( node ) && !attrs ) {\n\t\t\t\t\tnode = node.nextSibling;\n\t\t\t\t\tattrs = getAttrsIfCharacter( node! );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// 6. If not found, selection should retrieve attributes from parent.\n\t\t\tif ( !attrs ) {\n\t\t\t\tattrs = this.getStoredAttributes();\n\t\t\t}\n\t\t}\n\n\t\treturn attrs;\n\t}\n\n\t// Fixes the selection after all its ranges got removed.\n\t//\n\t// @private\n\t// @param {module:engine/model/position~Position} deletionPosition Position where the deletion happened.\n\tprivate _fixGraveyardSelection( deletionPosition: Position ): void {\n\t\t// Find a range that is a correct selection range and is closest to the position where the deletion happened.\n\t\tconst selectionRange = this._model.schema.getNearestSelectionRange( deletionPosition );\n\n\t\t// If nearest valid selection range has been found - add it in the place of old range.\n\t\tif ( selectionRange ) {\n\t\t\t// Check the range, convert it to live range, bind events, etc.\n\t\t\tthis._pushRange( selectionRange );\n\t\t}\n\t\t// If nearest valid selection range cannot be found don't add any range. Selection will be set to the default range.\n\t}\n}\n\n// Helper function for {@link module:engine/model/liveselection~LiveSelection#_updateAttributes}.\n//\n// It takes model item, checks whether it is a text node (or text proxy) and, if so, returns it's attributes. If not, returns `null`.\n//\n// @param {module:engine/model/item~Item|null}  node\n// @returns {Boolean}\nfunction getAttrsIfCharacter( node: Item ) {\n\tif ( node instanceof TextProxy || node instanceof Text ) {\n\t\treturn node.getAttributes();\n\t}\n\n\treturn null;\n}\n\n// Removes selection attributes from element which is not empty anymore.\n//\n// @param {module:engine/model/model~Model} model\n// @param {module:engine/model/batch~Batch} batch\nfunction clearAttributesStoredInElement( model: Model, batch: Batch ) {\n\tconst differ = model.document.differ;\n\n\tfor ( const entry of differ.getChanges() ) {\n\t\tif ( entry.type != 'insert' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst changeParent = entry.position.parent as Element;\n\t\tconst isNoLongerEmpty = entry.length === changeParent.maxOffset;\n\n\t\tif ( isNoLongerEmpty ) {\n\t\t\tmodel.enqueueChange( batch, writer => {\n\t\t\t\tconst storedAttributes = Array.from( changeParent.getAttributeKeys() )\n\t\t\t\t\t.filter( key => key.startsWith( storePrefix ) );\n\n\t\t\t\tfor ( const key of storedAttributes ) {\n\t\t\t\t\twriter.removeAttribute( key, changeParent );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/conversionhelpers\n */\n\n/**\n * Base class for conversion helpers.\n */\nexport default class ConversionHelpers<TDispatcher> {\n\tprivate readonly _dispatchers: Array<TDispatcher>;\n\n\t/**\n\t * Creates a conversion helpers instance.\n\t *\n\t * @param {Array.<module:engine/conversion/downcastdispatcher~DowncastDispatcher|\n\t * module:engine/conversion/upcastdispatcher~UpcastDispatcher>} dispatchers\n\t */\n\tconstructor( dispatchers: Array<TDispatcher> ) {\n\t\tthis._dispatchers = dispatchers;\n\t}\n\n\t/**\n\t * Registers a conversion helper.\n\t *\n\t * **Note**: See full usage example in the `{@link module:engine/conversion/conversion~Conversion#for conversion.for()}`\n\t * method description.\n\t *\n\t * @param {Function} conversionHelper The function to be called on event.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers|module:engine/conversion/upcasthelpers~UpcastHelpers}\n\t */\n\tpublic add( conversionHelper: ( dispatcher: TDispatcher ) => void ): this {\n\t\tfor ( const dispatcher of this._dispatchers ) {\n\t\t\tconversionHelper( dispatcher );\n\t\t}\n\n\t\treturn this;\n\t}\n}\n","import baseClone from './_baseClone.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n    CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\nfunction cloneDeep(value) {\n  return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n}\n\nexport default cloneDeep;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Contains downcast (model-to-view) converters for {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}.\n *\n * @module engine/conversion/downcasthelpers\n */\n\nimport ModelRange from '../model/range';\nimport ModelSelection from '../model/selection';\nimport ModelDocumentSelection from '../model/documentselection';\nimport ModelElement from '../model/element';\nimport ModelPosition from '../model/position';\n\nimport ViewAttributeElement from '../view/attributeelement';\nimport ConversionHelpers from './conversionhelpers';\n\nimport { cloneDeep } from 'lodash-es';\n\nimport {\n\tCKEditorError,\n\ttoArray,\n\ttype EventInfo,\n\ttype PriorityString\n} from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tdefault as DowncastDispatcher,\n\tDiffItemReinsert,\n\tDowncastConversionApi,\n\tDowncastInsertEvent,\n\tDowncastAddMarkerEvent,\n\tDowncastAttributeEvent,\n\tDowncastReduceChangesEvent,\n\tDowncastRemoveMarkerEvent\n} from './downcastdispatcher';\nimport type ModelConsumable from './modelconsumable';\nimport type { DiffItem } from '../model/differ';\nimport type ModelNode from '../model/node';\nimport type ModelItem from '../model/item';\nimport type ModelTextProxy from '../model/textproxy';\nimport type ModelText from '../model/text';\n\nimport type DowncastWriter from '../view/downcastwriter';\nimport type ElementDefinition from '../view/elementdefinition';\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type UIElement from '../view/uielement';\nimport type ViewElement from '../view/element';\nimport type ViewNode from '../view/node';\nimport type ViewPosition from '../view/position';\nimport type ViewRange from '../view/range';\nimport type {\n\tdefault as Mapper,\n\tMapperModelToViewPositionEvent\n} from './mapper';\n\n/**\n * Downcast conversion helper functions.\n *\n * Learn more about {@glink framework/guides/deep-dive/conversion/downcast downcast helpers}.\n *\n * @extends module:engine/conversion/conversionhelpers~ConversionHelpers\n */\nexport default class DowncastHelpers extends ConversionHelpers<DowncastDispatcher> {\n\t/**\n\t * Model element to view element conversion helper.\n\t *\n\t * This conversion results in creating a view element. For example, model `<paragraph>Foo</paragraph>` becomes `<p>Foo</p>` in the view.\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToElement( {\n\t *\t\t\tmodel: 'paragraph',\n\t *\t\t\tview: 'p'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToElement( {\n\t *\t\t\tmodel: 'paragraph',\n\t *\t\t\tview: 'div',\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToElement( {\n\t *\t\t\tmodel: 'fancyParagraph',\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'p',\n\t *\t\t\t\tclasses: 'fancy'\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToElement( {\n\t *\t\t\tmodel: 'heading',\n\t *\t\t\tview: ( modelElement, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\treturn writer.createContainerElement( 'h' + modelElement.getAttribute( 'level' ) );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * The element-to-element conversion supports the reconversion mechanism. It can be enabled by using either the `attributes` or\n\t * the `children` props on a model description. You will find a couple examples below.\n\t *\n\t * In order to reconvert an element if any of its direct children have been added or removed, use the `children` property on a `model`\n\t * description. For example, this model:\n\t *\n\t *\t\t<box>\n\t *\t\t\t<paragraph>Some text.</paragraph>\n\t *\t\t</box>\n\t *\n\t * will be converted into this structure in the view:\n\t *\n\t *\t\t<div class=\"box\" data-type=\"single\">\n\t *\t\t\t<p>Some text.</p>\n\t *\t\t</div>\n\t *\n\t * But if more items were inserted in the model:\n\t *\n\t *\t\t<box>\n\t *\t\t\t<paragraph>Some text.</paragraph>\n\t *\t\t\t<paragraph>Other item.</paragraph>\n\t *\t\t</box>\n\t *\n\t * it will be converted into this structure in the view (note the element `data-type` change):\n\t *\n\t *\t\t<div class=\"box\" data-type=\"multiple\">\n\t *\t\t\t<p>Some text.</p>\n\t *\t\t\t<p>Other item.</p>\n\t *\t\t</div>\n\t *\n\t * Such a converter would look like this (note that the `paragraph` elements are converted separately):\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToElement( {\n\t *\t\t\tmodel: {\n\t *\t \t\t\tname: 'box',\n\t *\t \t\t\tchildren: true\n\t *\t\t\t},\n\t *\t\t\tview: ( modelElement, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\treturn writer.createContainerElement( 'div', {\n\t *\t\t\t\t\tclass: 'box',\n\t *\t\t\t\t\t'data-type': modelElement.childCount == 1 ? 'single' : 'multiple'\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * In order to reconvert element if any of its attributes have been updated, use the `attributes` property on a `model`\n\t * description. For example, this model:\n\t *\n\t *\t\t<heading level=\"2\">Some text.</heading>\n\t *\n\t * will be converted into this structure in the view:\n\t *\n\t *\t\t<h2>Some text.</h2>\n\t *\n\t * But if the `heading` element's `level` attribute has been updated to `3` for example, then\n\t * it will be converted into this structure in the view:\n\t *\n\t *\t\t<h3>Some text.</h3>\n\t *\n\t * Such a converter would look as follows:\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToElement( {\n\t *\t\t\tmodel: {\n\t *\t \t\t\tname: 'heading',\n\t *\t \t\t\tattributes: 'level'\n\t *\t\t\t},\n\t *\t\t\tview: ( modelElement, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\treturn writer.createContainerElement( 'h' + modelElement.getAttribute( 'level' ) );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * You can read more about the element-to-element conversion in the\n\t * {@glink framework/guides/deep-dive/conversion/downcast downcast conversion} guide.\n\t *\n\t * @method #elementToElement\n\t * @param {Object} config Conversion configuration.\n\t * @param {String|Object} config.model The description or a name of the model element to convert.\n\t * @param {String|Array.<String>} [config.model.attributes] The list of attribute names that should be consumed while creating\n\t * the view element. Note that the view will be reconverted if any of the listed attributes changes.\n \t * @param {Boolean} [config.model.children] Specifies whether the view element requires reconversion if the list\n\t * of the model child nodes changed.\n\t * @param {module:engine/view/elementdefinition~ElementDefinition|module:engine/conversion/downcasthelpers~ElementCreatorFunction}\n\t * config.view A view element definition or a function that takes the model element and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as parameters and returns a view container element.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers}\n\t */\n\tpublic elementToElement( config: {\n\t\tmodel: string | {\n\t\t\tname: string;\n\t\t\tattributes?: string | Array<string>;\n\t\t\tchildren?: boolean;\n\t\t};\n\t\tview: ElementDefinition | ElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastElementToElement( config ) );\n\t}\n\n\t/**\n\t * The model element to view structure (several elements) conversion helper.\n\t *\n\t * This conversion results in creating a view structure with one or more slots defined for the child nodes.\n\t * For example, a model `<table>` may become this structure in the view:\n\t *\n\t *\t\t<figure class=\"table\">\n\t *\t\t\t<table>\n\t *\t\t\t\t<tbody>${ slot for table rows }</tbody>\n\t *\t\t\t</table>\n\t *\t\t</figure>\n\t *\n\t * The children of the model's `<table>` element will be inserted into the `<tbody>` element.\n\t * If the `elementToElement()` helper was used, the children would be inserted into the `<figure>`.\n\t *\n\t * An example converter that converts the following model structure:\n\t *\n\t *\t\t<wrappedParagraph>Some text.</wrappedParagraph>\n\t *\n\t * into this structure in the view:\n\t *\n\t *\t\t<div class=\"wrapper\">\n\t *\t\t\t<p>Some text.</p>\n\t *\t\t</div>\n\t *\n\t * would look like this:\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToStructure( {\n\t *\t\t\tmodel: 'wrappedParagraph',\n\t *\t\t\tview: ( modelElement, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\tconst wrapperViewElement = writer.createContainerElement( 'div', { class: 'wrapper' } );\n\t *\t\t\t\tconst paragraphViewElement = writer.createContainerElement( 'p' );\n\t *\n\t *\t\t\t\twriter.insert( writer.createPositionAt( wrapperViewElement, 0 ), paragraphViewElement );\n\t *\t\t\t\twriter.insert( writer.createPositionAt( paragraphViewElement, 0 ), writer.createSlot() );\n\t *\n\t *\t\t\t\treturn wrapperViewElement;\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * The `slorFor()` function can also take a callback that allows filtering which children of the model element\n\t * should be converted into this slot.\n\t *\n\t * Imagine a table feature where for this model structure:\n\t *\n\t *\t\t<table headingRows=\"1\">\n\t *\t\t\t<tableRow> ... table cells 1 ... </tableRow>\n\t *\t\t\t<tableRow> ... table cells 2 ... </tableRow>\n\t *\t\t\t<tableRow> ... table cells 3 ... </tableRow>\n\t *\t\t\t<caption>Caption text</caption>\n\t *\t\t</table>\n\t *\n\t * we want to generate this view structure:\n\t *\n\t *\t\t<figure class=\"table\">\n\t *\t\t\t<table>\n\t *\t\t\t\t<thead>\n\t *\t\t\t\t\t<tr> ... table cells 1 ... </tr>\n\t *\t\t\t\t</thead>\n\t *\t\t\t\t<tbody>\n\t *\t\t\t\t\t<tr> ... table cells 2 ... </tr>\n\t *\t\t\t\t\t<tr> ... table cells 3 ... </tr>\n\t *\t\t\t\t</tbody>\n\t *\t\t\t</table>\n\t *\t\t\t<figcaption>Caption text</figcaption>\n\t *\t\t</figure>\n\t *\n\t * The converter has to take the `headingRows` attribute into consideration when allocating the `<tableRow>` elements\n\t * into the `<tbody>` and `<thead>` elements. Hence, we need two slots and need to define proper filter callbacks for them.\n\t *\n\t * Additionally, all elements other than `<tableRow>` should be placed outside the `<table>` tag.\n\t * In the example above, this will handle the table caption.\n\t *\n\t * Such a converter would look like this:\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).elementToStructure( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tname: 'table',\n\t *\t\t\t\tattributes: [ 'headingRows' ]\n\t *\t\t\t},\n\t *\t\t\tview: ( modelElement, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\tconst figureElement = writer.createContainerElement( 'figure', { class: 'table' } );\n\t *\t\t\t\tconst tableElement = writer.createContainerElement( 'table' );\n\t *\n\t *\t\t\t\twriter.insert( writer.createPositionAt( figureElement, 0 ), tableElement );\n\t *\n\t *\t\t\t\tconst headingRows = modelElement.getAttribute( 'headingRows' ) || 0;\n\t *\n\t *\t\t\t\tif ( headingRows > 0 ) {\n\t *\t\t\t\t\tconst tableHead = writer.createContainerElement( 'thead' );\n\t *\n\t *\t\t\t\t\tconst headSlot = writer.createSlot( node => node.is( 'element', 'tableRow' ) && node.index < headingRows );\n\t *\n\t *\t\t\t\t\twriter.insert( writer.createPositionAt( tableElement, 'end' ), tableHead );\n\t *\t\t\t\t\twriter.insert( writer.createPositionAt( tableHead, 0 ), headSlot );\n\t *\t\t\t\t}\n\t *\n\t *\t\t\t\tif ( headingRows < tableUtils.getRows( table ) ) {\n\t *\t\t\t\t\tconst tableBody = writer.createContainerElement( 'tbody' );\n\t *\n\t *\t\t\t\t\tconst bodySlot = writer.createSlot( node => node.is( 'element', 'tableRow' ) && node.index >= headingRows );\n\t *\n\t *\t\t\t\t\twriter.insert( writer.createPositionAt( tableElement, 'end' ), tableBody );\n\t *\t\t\t\t\twriter.insert( writer.createPositionAt( tableBody, 0 ), bodySlot );\n\t *\t\t\t\t}\n\t *\n\t *\t\t\t\tconst restSlot = writer.createSlot( node => !node.is( 'element', 'tableRow' ) );\n\t *\n\t *\t\t\t\twriter.insert( writer.createPositionAt( figureElement, 'end' ), restSlot );\n\t *\n\t *\t\t\t\treturn figureElement;\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * Note: The children of a model element that's being converted must be allocated in the same order in the view\n\t * in which they are placed in the model.\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #elementToStructure\n\t * @param {Object} config Conversion configuration.\n \t * @param {String|Object} config.model The description or a name of the model element to convert.\n\t * @param {String} [config.model.name] The name of the model element to convert.\n \t * @param {String|Array.<String>} [config.model.attributes] The list of attribute names that should be consumed while creating\n\t * the view structure. Note that the view will be reconverted if any of the listed attributes will change.\n\t * @param {module:engine/conversion/downcasthelpers~StructureCreatorFunction} config.view A function\n\t * that takes the model element and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast\n\t * conversion API} as parameters and returns a view container element with slots for model child nodes to be converted into.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers}\n\t */\n\tpublic elementToStructure( config: {\n\t\tmodel: string | {\n\t\t\tname: string;\n\t\t\tattributes?: string | Array<string>;\n\t\t};\n\t\tview: StructureCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastElementToStructure( config ) );\n\t}\n\n\t/**\n\t * Model attribute to view element conversion helper.\n\t *\n\t * This conversion results in wrapping view nodes with a view attribute element. For example, a model text node with\n\t * `\"Foo\"` as data and the `bold` attribute becomes `<strong>Foo</strong>` in the view.\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t *\t\t\tmodel: 'bold',\n\t *\t\t\tview: 'strong'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t *\t\t\tmodel: 'bold',\n\t *\t\t\tview: 'b',\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t *\t\t\tmodel: 'invert',\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'span',\n\t *\t\t\t\tclasses: [ 'font-light', 'bg-dark' ]\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'fontSize',\n\t *\t\t\t\tvalues: [ 'big', 'small' ]\n\t *\t\t\t},\n\t *\t\t\tview: {\n\t *\t\t\t\tbig: {\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'font-size': '1.2em'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t},\n\t *\t\t\t\tsmall: {\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'font-size': '0.8em'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t *\t\t\tmodel: 'bold',\n\t *\t\t\tview: ( modelAttributeValue, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\treturn writer.createAttributeElement( 'span', {\n\t *\t\t\t\t\tstyle: 'font-weight:' + modelAttributeValue\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'color',\n\t *\t\t\t\tname: '$text'\n\t *\t\t\t},\n\t *\t\t\tview: ( modelAttributeValue, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\treturn writer.createAttributeElement( 'span', {\n\t *\t\t\t\t\tstyle: 'color:' + modelAttributeValue\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #attributeToElement\n\t * @param {Object} config Conversion configuration.\n\t * @param {String|Object} config.model The key of the attribute to convert from or a `{ key, values }` object. `values` is an array\n\t * of `String`s with possible values if the model attribute is an enumerable.\n\t * @param {module:engine/view/elementdefinition~ElementDefinition|Object|\n\t * module:engine/conversion/downcasthelpers~AttributeElementCreatorFunction} config.view A view element definition or a function\n\t * that takes the model attribute value and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as parameters and returns a view\n\t * attribute element. If `config.model.values` is given, `config.view` should be an object assigning values from `config.model.values`\n\t * to view element definitions or functions.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers}\n\t */\n\tpublic attributeToElement<TValues extends string>(\n\t\tconfig: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: ElementDefinition | AttributeElementCreatorFunction;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, ElementDefinition | AttributeElementCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t}\n\t): this {\n\t\treturn this.add( downcastAttributeToElement( config ) );\n\t}\n\n\t/**\n\t * Model attribute to view attribute conversion helper.\n\t *\n\t * This conversion results in adding an attribute to a view node, basing on an attribute from a model node. For example,\n\t * `<imageInline src='foo.jpg'></imageInline>` is converted to `<img src='foo.jpg'></img>`.\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t *\t\t\tmodel: 'source',\n\t *\t\t\tview: 'src'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t *\t\t\tmodel: 'source',\n\t *\t\t\tview: 'href',\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tname: 'imageInline',\n\t *\t\t\t\tkey: 'source'\n\t *\t\t\t},\n\t *\t\t\tview: 'src'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tname: 'styled',\n\t *\t\t\t\tvalues: [ 'dark', 'light' ]\n\t *\t\t\t},\n\t *\t\t\tview: {\n\t *\t\t\t\tdark: {\n\t *\t\t\t\t\tkey: 'class',\n\t *\t\t\t\t\tvalue: [ 'styled', 'styled-dark' ]\n\t *\t\t\t\t},\n\t *\t\t\t\tlight: {\n\t *\t\t\t\t\tkey: 'class',\n\t *\t\t\t\t\tvalue: [ 'styled', 'styled-light' ]\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t *\t\t\tmodel: 'styled',\n\t *\t\t\tview: modelAttributeValue => ( {\n\t *\t\t\t\tkey: 'class',\n\t *\t\t\t\tvalue: 'styled-' + modelAttributeValue\n\t *\t\t\t} )\n\t *\t\t} );\n\t *\n\t * **Note**: Downcasting to a style property requires providing `value` as an object:\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t *\t\t\tmodel: 'lineHeight',\n\t *\t\t\tview: modelAttributeValue => ( {\n\t *\t\t\t\tkey: 'style',\n\t *\t\t\t\tvalue: {\n\t *\t\t\t\t\t'line-height': modelAttributeValue,\n\t *\t\t\t\t\t'border-bottom': '1px dotted #ba2'\n\t *\t\t\t\t}\n\t *\t\t\t} )\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #attributeToAttribute\n\t * @param {Object} config Conversion configuration.\n\t * @param {String|Object} config.model The key of the attribute to convert from or a `{ key, values, [ name ] }` object describing\n\t * the attribute key, possible values and, optionally, an element name to convert from.\n\t * @param {String|Object|module:engine/conversion/downcasthelpers~AttributeCreatorFunction} config.view A view attribute key,\n\t * or a `{ key, value }` object or a function that takes the model attribute value and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as parameters and returns a `{ key, value }` object. If the `key` is `'class'`, the `value` can be a `String` or an\n\t * array of `String`s. If the `key` is `'style'`, the `value` is an object with key-value pairs. In other cases, `value` is a `String`.\n\t * If `config.model.values` is set, `config.view` should be an object assigning values from `config.model.values` to\n\t * `{ key, value }` objects or a functions.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers}\n\t */\n\tpublic attributeToAttribute<TValues extends string>(\n\t\tconfig: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: string | AttributeDescriptor | AttributeCreatorFunction;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, AttributeDescriptor | AttributeCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t}\n\t): this {\n\t\treturn this.add( downcastAttributeToAttribute( config ) );\n\t}\n\n\t/**\n\t * Model marker to view element conversion helper.\n\t *\n\t * **Note**: This method should be used mainly for editing the downcast and it is recommended\n\t * to use the {@link #markerToData `#markerToData()`} helper instead.\n\t *\n\t * This helper may produce invalid HTML code (e.g. a span between table cells).\n\t * It should only be used when you are sure that the produced HTML will be semantically correct.\n\t *\n\t * This conversion results in creating a view element on the boundaries of the converted marker. If the converted marker\n\t * is collapsed, only one element is created. For example, a model marker set like this: `<paragraph>F[oo b]ar</paragraph>`\n\t * becomes `<p>F<span data-marker=\"search\"></span>oo b<span data-marker=\"search\"></span>ar</p>` in the view.\n\t *\n\t *\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t *\t\t\tmodel: 'search',\n\t *\t\t\tview: 'marker-search'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t *\t\t\tmodel: 'search',\n\t *\t\t\tview: 'search-result',\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t *\t\t\tmodel: 'search',\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'span',\n\t *\t\t\t\tattributes: {\n\t *\t\t\t\t\t'data-marker': 'search'\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t *\t\t\tmodel: 'search',\n\t *\t\t\tview: ( markerData, conversionApi ) => {\n\t *\t\t\t\tconst { writer } = conversionApi;\n\t *\n\t *\t\t\t\treturn writer.createUIElement( 'span', {\n\t *\t\t\t\t\t'data-marker': 'search',\n\t *\t\t\t\t\t'data-start': markerData.isOpening\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * If a function is passed as the `config.view` parameter, it will be used to generate both boundary elements. The function\n\t * receives the `data` object and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as a parameters and should return an instance of the\n\t * {@link module:engine/view/uielement~UIElement view UI element}. The `data` object and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi `conversionApi`} are passed from\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker}. Additionally,\n\t * the `data.isOpening` parameter is passed, which is set to `true` for the marker start boundary element, and `false` for\n\t * the marker end boundary element.\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #markerToElement\n\t * @param {Object} config Conversion configuration.\n\t * @param {String} config.model The name of the model marker (or model marker group) to convert.\n\t * @param {module:engine/view/elementdefinition~ElementDefinition|Function} config.view A view element definition or a function that\n\t * takes the model marker data and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as a parameters and returns a view UI element.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers}\n\t */\n\tpublic markerToElement( config: {\n\t\tmodel: string;\n\t\tview: ElementDefinition | MarkerElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastMarkerToElement( config ) );\n\t}\n\n\t/**\n\t * Model marker to highlight conversion helper.\n\t *\n\t * This conversion results in creating a highlight on view nodes. For this kind of conversion,\n\t * the {@link module:engine/conversion/downcasthelpers~HighlightDescriptor} should be provided.\n\t *\n\t * For text nodes, a `<span>` {@link module:engine/view/attributeelement~AttributeElement} is created and it wraps all text nodes\n\t * in the converted marker range. For example, a model marker set like this: `<paragraph>F[oo b]ar</paragraph>` becomes\n\t * `<p>F<span class=\"comment\">oo b</span>ar</p>` in the view.\n\t *\n\t * {@link module:engine/view/containerelement~ContainerElement} may provide a custom way of handling highlight. Most often,\n\t * the element itself is given classes and attributes described in the highlight descriptor (instead of being wrapped in `<span>`).\n\t * For example, a model marker set like this:\n\t * `[<imageInline src=\"foo.jpg\"></imageInline>]` becomes `<img src=\"foo.jpg\" class=\"comment\"></img>` in the view.\n\t *\n\t * For container elements, the conversion is two-step. While the converter processes the highlight descriptor and passes it\n\t * to a container element, it is the container element instance itself that applies values from the highlight descriptor.\n\t * So, in a sense, the converter takes care of stating what should be applied on what, while the element decides how to apply that.\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).markerToHighlight( { model: 'comment', view: { classes: 'comment' } } );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).markerToHighlight( {\n\t *\t\t\tmodel: 'comment',\n\t *\t\t\tview: { classes: 'comment' },\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'downcast' ).markerToHighlight( {\n\t *\t\t\tmodel: 'comment',\n\t *\t\t\tview: ( data, conversionApi ) => {\n\t *\t\t\t\t// Assuming that the marker name is in a form of comment:commentType:commentId.\n\t *\t\t\t\tconst [ , commentType, commentId ] = data.markerName.split( ':' );\n\t *\n\t *\t\t\t\treturn {\n\t *\t\t\t\t\tclasses: [ 'comment', 'comment-' + commentType ],\n\t *\t\t\t\t\tattributes: { 'data-comment-id': commentId }\n\t *\t\t\t\t};\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * If a function is passed as the `config.view` parameter, it will be used to generate the highlight descriptor. The function\n\t * receives the `data` object and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as the parameters and should return a\n\t * {@link module:engine/conversion/downcasthelpers~HighlightDescriptor highlight descriptor}.\n\t * The `data` object properties are passed from {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker}.\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #markerToHighlight\n\t * @param {Object} config Conversion configuration.\n\t * @param {String} config.model The name of the model marker (or model marker group) to convert.\n\t * @param {module:engine/conversion/downcasthelpers~HighlightDescriptor|Function} config.view A highlight descriptor\n\t * that will be used for highlighting or a function that takes the model marker data and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as a parameters\n\t * and returns a highlight descriptor.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers}\n\t */\n\tpublic markerToHighlight( config: {\n\t\tmodel: string;\n\t\tview: HighlightDescriptor | HighlightDescriptorCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastMarkerToHighlight( config ) );\n\t}\n\n\t/**\n\t * Model marker converter for data downcast.\n\t *\n\t * This conversion creates a representation for model marker boundaries in the view:\n\t *\n\t * * If the marker boundary is before or after a model element, a view attribute is set on a corresponding view element.\n\t * * In other cases, a view element with the specified tag name is inserted at the corresponding view position.\n\t *\n\t * Typically, the marker names use the `group:uniqueId:otherData` convention. For example: `comment:e34zfk9k2n459df53sjl34:zx32c`.\n\t * The default configuration for this conversion is that the first part is the `group` part and the rest of\n\t * the marker name becomes the `name` part.\n\t *\n\t * Tag and attribute names and values are generated from the marker name:\n\t *\n\t * * The templates for attributes are `data-[group]-start-before=\"[name]\"`, `data-[group]-start-after=\"[name]\"`,\n\t * `data-[group]-end-before=\"[name]\"` and `data-[group]-end-after=\"[name]\"`.\n\t * * The templates for view elements are `<[group]-start name=\"[name]\">` and `<[group]-end name=\"[name]\">`.\n\t *\n\t * Attributes mark whether the given marker's start or end boundary is before or after the given element.\n\t * The `data-[group]-start-before` and `data-[group]-end-after` attributes are favored.\n\t * The other two are used when the former two cannot be used.\n\t *\n\t * The conversion configuration can take a function that will generate different group and name parts.\n\t * If such a function is set as the `config.view` parameter, it is passed a marker name and it is expected to return an object with two\n\t * properties: `group` and `name`. If the function returns a falsy value, the conversion will not take place.\n\t *\n\t * Basic usage:\n\t *\n\t *\t\t// Using the default conversion.\n\t *\t\t// In this case, all markers with names starting with 'comment:' will be converted.\n\t *\t\t// The `group` parameter will be set to `comment`.\n\t *\t\t// The `name` parameter will be the rest of the marker name (without the `:`).\n\t *\t\teditor.conversion.for( 'dataDowncast' ).markerToData( {\n\t *\t\t\tmodel: 'comment'\n\t *\t\t} );\n\t *\n\t * An example of a view that may be generated by this conversion (assuming a marker with the name `comment:commentId:uid` marked\n\t * by `[]`):\n\t *\n\t *\t\t// Model:\n\t *\t\t<paragraph>Foo[bar</paragraph>\n\t *\t\t<imageBlock src=\"abc.jpg\"></imageBlock>]\n\t *\n\t *\t\t// View:\n\t *\t\t<p>Foo<comment-start name=\"commentId:uid\"></comment-start>bar</p>\n\t *\t\t<figure data-comment-end-after=\"commentId:uid\" class=\"image\"><img src=\"abc.jpg\" /></figure>\n\t *\n\t * In the example above, the comment starts before \"bar\" and ends after the image.\n\t *\n\t * If the `name` part is empty, the following view may be generated:\n\t *\n\t *\t\t<p>Foo <myMarker-start></myMarker-start>bar</p>\n\t *\t\t<figure data-myMarker-end-after=\"\" class=\"image\"><img src=\"abc.jpg\" /></figure>\n\t *\n\t * **Note:** A situation where some markers have the `name` part and some do not, is incorrect and should be avoided.\n\t *\n\t * Examples where `data-group-start-after` and `data-group-end-before` are used:\n\t *\n\t *\t\t// Model:\n\t *\t\t<blockQuote>[]<paragraph>Foo</paragraph></blockQuote>\n\t *\n\t *\t\t// View:\n\t *\t\t<blockquote><p data-group-end-before=\"name\" data-group-start-before=\"name\">Foo</p></blockquote>\n\t *\n\t * Similarly, when a marker is collapsed after the last element:\n\t *\n\t *\t\t// Model:\n\t *\t\t<blockQuote><paragraph>Foo</paragraph>[]</blockQuote>\n\t *\n\t *\t\t// View:\n\t *\t\t<blockquote><p data-group-end-after=\"name\" data-group-start-after=\"name\">Foo</p></blockquote>\n\t *\n\t * When there are multiple markers from the same group stored in the same attribute of the same element, their\n\t * name parts are put together in the attribute value, for example: `data-group-start-before=\"name1,name2,name3\"`.\n\t *\n\t * Other examples of usage:\n\t *\n\t *\t\t// Using a custom function which is the same as the default conversion:\n\t *\t\teditor.conversion.for( 'dataDowncast' ).markerToData( {\n\t *\t\t\tmodel: 'comment'\n\t *\t\t\tview: markerName => ( {\n\t *\t\t\t\tgroup: 'comment',\n\t *\t\t\t\tname: markerName.substr( 8 ) // Removes 'comment:' part.\n\t *\t\t\t} )\n\t *\t\t} );\n\t *\n\t *\t\t// Using the converter priority:\n\t *\t\teditor.conversion.for( 'dataDowncast' ).markerToData( {\n\t *\t\t\tmodel: 'comment'\n\t *\t\t\tview: markerName => ( {\n\t *\t\t\t\tgroup: 'comment',\n\t *\t\t\t\tname: markerName.substr( 8 ) // Removes 'comment:' part.\n\t *\t\t\t} ),\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t * This kind of conversion is useful for saving data into the database, so it should be used in the data conversion pipeline.\n\t *\n\t * See the {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} API guide to learn how to\n\t * add a converter to the conversion process.\n\t *\n\t * @method #markerToData\n\t * @param {Object} config Conversion configuration.\n\t * @param {String} config.model The name of the model marker (or the model marker group) to convert.\n\t * @param {Function} [config.view] A function that takes the model marker name and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as the parameters\n\t * and returns an object with the `group` and `name` properties.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers}\n\t */\n\tpublic markerToData( config: {\n\t\tmodel: string;\n\t\tview?: MarkerDataCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastMarkerToData( config ) );\n\t}\n}\n\n/**\n * Function factory that creates a default downcast converter for text insertion changes.\n *\n * The converter automatically consumes the corresponding value from the consumables list and stops the event (see\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}).\n *\n *\t\tmodelDispatcher.on( 'insert:$text', insertText() );\n *\n * @returns {Function} Insert text event converter.\n */\nexport function insertText() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { item: ModelText | ModelTextProxy; range: ModelRange },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\t\tconst viewText = viewWriter.createText( data.item.data );\n\n\t\tviewWriter.insert( viewPosition, viewText );\n\t};\n}\n\n/**\n * Function factory that creates a default downcast converter for triggering attributes and children conversion.\n *\n * @returns {Function} The converter.\n */\nexport function insertAttributesAndChildren() {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { item: ModelItem; reconversion?: boolean },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconversionApi.convertAttributes( data.item );\n\n\t\t// Start converting children of the current item.\n\t\t// In case of reconversion children were already re-inserted or converted separately.\n\t\tif ( !data.reconversion && data.item.is( 'element' ) && !data.item.isEmpty ) {\n\t\t\tconversionApi.convertChildren( data.item );\n\t\t}\n\t};\n}\n\n/**\n * Function factory that creates a default downcast converter for node remove changes.\n *\n *\t\tmodelDispatcher.on( 'remove', remove() );\n *\n * @returns {Function} Remove event converter.\n */\nexport function remove() {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { position: ModelPosition; length: number },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\t// Find the view range start position by mapping the model position at which the remove happened.\n\t\tconst viewStart = conversionApi.mapper.toViewPosition( data.position );\n\n\t\tconst modelEnd = data.position.getShiftedBy( data.length );\n\t\tconst viewEnd = conversionApi.mapper.toViewPosition( modelEnd, { isPhantom: true } );\n\n\t\tconst viewRange = conversionApi.writer.createRange( viewStart, viewEnd );\n\n\t\t// Trim the range to remove in case some UI elements are on the view range boundaries.\n\t\tconst removed = conversionApi.writer.remove( viewRange.getTrimmed() );\n\n\t\t// After the range is removed, unbind all view elements from the model.\n\t\t// Range inside view document fragment is used to unbind deeply.\n\t\tfor ( const child of conversionApi.writer.createRangeIn( removed ).getItems() ) {\n\t\t\tconversionApi.mapper.unbindViewElement( child as ViewElement, { defer: true } );\n\t\t}\n\t};\n}\n\n/**\n * Creates a `<span>` {@link module:engine/view/attributeelement~AttributeElement view attribute element} from the information\n * provided by the {@link module:engine/conversion/downcasthelpers~HighlightDescriptor highlight descriptor} object. If the priority\n * is not provided in the descriptor, the default priority will be used.\n *\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} descriptor\n * @returns {module:engine/view/attributeelement~AttributeElement}\n */\nexport function createViewElementFromHighlightDescriptor( writer: DowncastWriter, descriptor: HighlightDescriptor ): ViewAttributeElement {\n\tconst viewElement = writer.createAttributeElement( 'span', descriptor.attributes );\n\n\tif ( descriptor.classes ) {\n\t\tviewElement._addClass( descriptor.classes );\n\t}\n\n\tif ( typeof descriptor.priority === 'number' ) {\n\t\t( viewElement as any )._priority = descriptor.priority;\n\t}\n\n\t( viewElement as any )._id = descriptor.id;\n\n\treturn viewElement;\n}\n\n/**\n * Function factory that creates a converter which converts a non-collapsed {@link module:engine/model/selection~Selection model selection}\n * to a {@link module:engine/view/documentselection~DocumentSelection view selection}. The converter consumes appropriate\n * value from the `consumable` object and maps model positions from the selection to view positions.\n *\n *\t\tmodelDispatcher.on( 'selection', convertRangeSelection() );\n *\n * @returns {Function} Selection converter.\n */\nexport function convertRangeSelection() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { selection: ModelSelection | ModelDocumentSelection },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst selection = data.selection;\n\n\t\tif ( selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( selection, 'selection' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewRanges: Array<ViewRange> = [];\n\n\t\tfor ( const range of selection.getRanges() ) {\n\t\t\tviewRanges.push( conversionApi.mapper.toViewRange( range ) );\n\t\t}\n\n\t\tconversionApi.writer.setSelection( viewRanges, { backward: selection.isBackward } );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts a collapsed {@link module:engine/model/selection~Selection model selection} to\n * a {@link module:engine/view/documentselection~DocumentSelection view selection}. The converter consumes appropriate\n * value from the `consumable` object, maps the model selection position to the view position and breaks\n * {@link module:engine/view/attributeelement~AttributeElement attribute elements} at the selection position.\n *\n *\t\tmodelDispatcher.on( 'selection', convertCollapsedSelection() );\n *\n * An example of the view state before and after converting the collapsed selection:\n *\n *\t\t   <p><strong>f^oo<strong>bar</p>\n *\t\t-> <p><strong>f</strong>^<strong>oo</strong>bar</p>\n *\n * By breaking attribute elements like `<strong>`, the selection is in a correct element. Then, when the selection attribute is\n * converted, broken attributes might be merged again, or the position where the selection is may be wrapped\n * with different, appropriate attribute elements.\n *\n * See also {@link module:engine/conversion/downcasthelpers~clearAttributes} which does a clean-up\n * by merging attributes.\n *\n * @returns {Function} Selection converter.\n */\nexport function convertCollapsedSelection() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { selection: ModelSelection | ModelDocumentSelection },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst selection = data.selection;\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( selection, 'selection' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst modelPosition = selection.getFirstPosition()!;\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( modelPosition );\n\t\tconst brokenPosition = viewWriter.breakAttributes( viewPosition );\n\n\t\tviewWriter.setSelection( brokenPosition );\n\t};\n}\n\n/**\n * Function factory that creates a converter which clears artifacts after the previous\n * {@link module:engine/model/selection~Selection model selection} conversion. It removes all empty\n * {@link module:engine/view/attributeelement~AttributeElement view attribute elements} and merges sibling attributes at all start and end\n * positions of all ranges.\n *\n *\t\t   <p><strong>^</strong></p>\n *\t\t-> <p>^</p>\n *\n *\t\t   <p><strong>foo</strong>^<strong>bar</strong>bar</p>\n *\t\t-> <p><strong>foo^bar<strong>bar</p>\n *\n *\t\t   <p><strong>foo</strong><em>^</em><strong>bar</strong>bar</p>\n *\t\t-> <p><strong>foo^bar<strong>bar</p>\n *\n * This listener should be assigned before any converter for the new selection:\n *\n *\t\tmodelDispatcher.on( 'selection', clearAttributes() );\n *\n * See {@link module:engine/conversion/downcasthelpers~convertCollapsedSelection}\n * which does the opposite by breaking attributes in the selection position.\n *\n * @returns {Function} Selection converter.\n */\nexport function clearAttributes() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: unknown,\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\tfor ( const range of viewSelection.getRanges() ) {\n\t\t\t// Not collapsed selection should not have artifacts.\n\t\t\tif ( range.isCollapsed ) {\n\t\t\t\t// Position might be in the node removed by the view writer.\n\t\t\t\tif ( ( range.end.parent as ViewNode ).isAttached() ) {\n\t\t\t\t\tconversionApi.writer.mergeAttributes( range.start );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tviewWriter.setSelection( null );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts the set/change/remove attribute changes from the model to the view.\n * It can also be used to convert selection attributes. In that case, an empty attribute element will be created and the\n * selection will be put inside it.\n *\n * Attributes from the model are converted to a view element that will be wrapping these view nodes that are bound to\n * model elements having the given attribute. This is useful for attributes like `bold` that may be set on text nodes in the model\n * but are represented as an element in the view:\n *\n *\t\t[paragraph]              MODEL ====> VIEW        <p>\n *\t\t\t|- a {bold: true}                             |- <b>\n *\t\t\t|- b {bold: true}                             |   |- ab\n *\t\t\t|- c                                          |- c\n *\n * Passed `Function` will be provided with the attribute value and then all the parameters of the\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute` event}.\n * It is expected that the function returns an {@link module:engine/view/element~Element}.\n * The result of the function will be the wrapping element.\n * When the provided `Function` does not return any element, no conversion will take place.\n *\n * The converter automatically consumes the corresponding value from the consumables list and stops the event (see\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}).\n *\n *\t\tmodelDispatcher.on( 'attribute:bold', wrap( ( modelAttributeValue, { writer } ) => {\n *\t\t\treturn writer.createAttributeElement( 'strong' );\n *\t\t} );\n *\n * @protected\n * @param {Function} elementCreator Function returning a view element that will be used for wrapping.\n * @returns {Function} Set/change attribute converter.\n */\nexport function wrap( elementCreator: AttributeElementCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\t\trange: ModelRange;\n\t\t\tattributeKey: string;\n\t\t\tattributeOldValue: unknown;\n\t\t\tattributeNewValue: unknown;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Recreate current wrapping node. It will be used to unwrap view range if the attribute value has changed\n\t\t// or the attribute was removed.\n\t\tconst oldViewElement = elementCreator( data.attributeOldValue, conversionApi, data );\n\n\t\t// Create node to wrap with.\n\t\tconst newViewElement = elementCreator( data.attributeNewValue, conversionApi, data );\n\n\t\tif ( !oldViewElement && !newViewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconversionApi.consumable.consume( data.item, evt.name );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\tif ( data.item instanceof ModelSelection || data.item instanceof ModelDocumentSelection ) {\n\t\t\t// Selection attribute conversion.\n\t\t\tviewWriter.wrap( viewSelection.getFirstRange()!, newViewElement! );\n\t\t} else {\n\t\t\t// Node attribute conversion.\n\t\t\tlet viewRange = conversionApi.mapper.toViewRange( data.range );\n\n\t\t\t// First, unwrap the range from current wrapper.\n\t\t\tif ( data.attributeOldValue !== null && oldViewElement ) {\n\t\t\t\tviewRange = viewWriter.unwrap( viewRange, oldViewElement );\n\t\t\t}\n\n\t\t\tif ( data.attributeNewValue !== null && newViewElement ) {\n\t\t\t\tviewWriter.wrap( viewRange, newViewElement );\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts node insertion changes from the model to the view.\n * The function passed will be provided with all the parameters of the dispatcher's\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert` event}.\n * It is expected that the function returns an {@link module:engine/view/element~Element}.\n * The result of the function will be inserted into the view.\n *\n * The converter automatically consumes the corresponding value from the consumables list and binds the model and view elements.\n *\n *\t\tdowncastDispatcher.on(\n *\t\t\t'insert:myElem',\n *\t\t\tinsertElement( ( modelItem, { writer } ) => {\n *\t\t\t\tconst text = writer.createText( 'myText' );\n *\t\t\t\tconst myElem = writer.createElement( 'myElem', { myAttr: 'my-' + modelItem.getAttribute( 'myAttr' ) }, text );\n *\n *\t\t\t\t// Do something fancy with `myElem` using `modelItem` or other parameters.\n *\n *\t\t\t\treturn myElem;\n *\t\t\t}\n *\t\t) );\n *\n * @protected\n * @param {Function} elementCreator Function returning a view element, which will be inserted.\n * @param {module:engine/conversion/downcasthelpers~ConsumerFunction} [consumer] Function defining element consumption process.\n * By default this function just consume passed item insertion.\n * @returns {Function} Insert element event converter.\n */\nexport function insertElement( elementCreator: ElementCreatorFunction, consumer: ConsumerFunction = defaultConsumer ) {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { item: ModelElement; range: ModelRange; reconversion?: boolean },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !consumer( data.item, conversionApi.consumable, { preflight: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewElement = elementCreator( data.item, conversionApi, data );\n\n\t\tif ( !viewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Consume an element insertion and all present attributes that are specified as a reconversion triggers.\n\t\tconsumer( data.item, conversionApi.consumable );\n\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\n\t\tconversionApi.mapper.bindElements( data.item, viewElement );\n\t\tconversionApi.writer.insert( viewPosition, viewElement );\n\n\t\t// Convert attributes before converting children.\n\t\tconversionApi.convertAttributes( data.item );\n\n\t\t// Convert children or reinsert previous view elements.\n\t\treinsertOrConvertNodes( viewElement, data.item.getChildren(), conversionApi, { reconversion: data.reconversion } );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts a single model node insertion to a view structure.\n *\n * It is expected that the passed element creator function returns an {@link module:engine/view/element~Element} with attached slots\n * created with `writer.createSlot()` to indicate where child nodes should be converted.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n *\n * @protected\n * @param {module:engine/conversion/downcasthelpers~StructureCreatorFunction} elementCreator Function returning a view structure,\n * which will be inserted.\n * @param {module:engine/conversion/downcasthelpers~ConsumerFunction} consumer A callback that is expected to consume all the consumables\n * that were used by the element creator.\n * @returns {Function} Insert element event converter.\n*/\nexport function insertStructure( elementCreator: StructureCreatorFunction, consumer: ConsumerFunction ) {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { item: ModelElement; range: ModelRange; reconversion?: boolean },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !consumer( data.item, conversionApi.consumable, { preflight: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst slotsMap = new Map<ViewElement, Array<ModelNode>>();\n\n\t\tconversionApi.writer._registerSlotFactory( createSlotFactory( data.item, slotsMap, conversionApi ) );\n\n\t\t// View creation.\n\t\tconst viewElement = elementCreator( data.item, conversionApi, data );\n\n\t\tconversionApi.writer._clearSlotFactory();\n\n\t\tif ( !viewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check if all children are covered by slots and there is no child that landed in multiple slots.\n\t\tvalidateSlotsChildren( data.item, slotsMap, conversionApi );\n\n\t\t// Consume an element insertion and all present attributes that are specified as a reconversion triggers.\n\t\tconsumer( data.item, conversionApi.consumable );\n\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\n\t\tconversionApi.mapper.bindElements( data.item, viewElement );\n\t\tconversionApi.writer.insert( viewPosition, viewElement );\n\n\t\t// Convert attributes before converting children.\n\t\tconversionApi.convertAttributes( data.item );\n\n\t\t// Fill view slots with previous view elements or create new ones.\n\t\tfillSlots( viewElement, slotsMap, conversionApi, { reconversion: data.reconversion } );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts marker adding change to the\n * {@link module:engine/view/uielement~UIElement view UI element}.\n *\n * The view UI element that will be added to the view depends on the passed parameter. See {@link ~insertElement}.\n * In case of a non-collapsed range, the UI element will not wrap nodes but separate elements will be placed at the beginning\n * and at the end of the range.\n *\n * This converter binds created UI elements with the marker name using {@link module:engine/conversion/mapper~Mapper#bindElementToMarker}.\n *\n * @protected\n * @param {module:engine/view/uielement~UIElement|Function} elementCreator A view UI element or a function returning the view element\n * that will be inserted.\n * @returns {Function} Insert element event converter.\n */\nexport function insertUIElement( elementCreator: MarkerElementCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\tmarkerRange: ModelRange;\n\t\t\tmarkerName: string;\n\t\t\tisOpening?: boolean;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\t// Create two view elements. One will be inserted at the beginning of marker, one at the end.\n\t\t// If marker is collapsed, only \"opening\" element will be inserted.\n\t\tdata.isOpening = true;\n\t\tconst viewStartElement = elementCreator( data, conversionApi );\n\n\t\tdata.isOpening = false;\n\t\tconst viewEndElement = elementCreator( data, conversionApi );\n\n\t\tif ( !viewStartElement || !viewEndElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst markerRange = data.markerRange;\n\n\t\t// Marker that is collapsed has consumable build differently that non-collapsed one.\n\t\t// For more information see `addMarker` event description.\n\t\t// If marker's range is collapsed - check if it can be consumed.\n\t\tif ( markerRange.isCollapsed && !conversionApi.consumable.consume( markerRange, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If marker's range is not collapsed - consume all items inside.\n\t\tfor ( const value of markerRange ) {\n\t\t\tif ( !conversionApi.consumable.consume( value.item, evt.name ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\tconst mapper = conversionApi.mapper;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// Add \"opening\" element.\n\t\tviewWriter.insert( mapper.toViewPosition( markerRange.start ), viewStartElement );\n\t\tconversionApi.mapper.bindElementToMarker( viewStartElement, data.markerName );\n\n\t\t// Add \"closing\" element only if range is not collapsed.\n\t\tif ( !markerRange.isCollapsed ) {\n\t\t\tviewWriter.insert( mapper.toViewPosition( markerRange.end ), viewEndElement );\n\t\t\tconversionApi.mapper.bindElementToMarker( viewEndElement, data.markerName );\n\t\t}\n\n\t\tevt.stop();\n\t};\n}\n\n// Function factory that returns a default downcast converter for removing a {@link module:engine/view/uielement~UIElement UI element}\n// based on marker remove change.\n//\n// This converter unbinds elements from the marker name.\n//\n// @returns {Function} Removed UI element converter.\nfunction removeUIElement() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { markerName: string },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst elements = conversionApi.mapper.markerNameToElements( data.markerName );\n\n\t\tif ( !elements ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const element of elements ) {\n\t\t\tconversionApi.mapper.unbindElementFromMarkerName( element, data.markerName );\n\t\t\tconversionApi.writer.clear( conversionApi.writer.createRangeOn( element ), element );\n\t\t}\n\n\t\tconversionApi.writer.clearClonedElementsGroup( data.markerName );\n\n\t\tevt.stop();\n\t};\n}\n\n// Function factory that creates a default converter for model markers.\n//\n// See {@link DowncastHelpers#markerToData} for more information what type of view is generated.\n//\n// This converter binds created UI elements and affected view elements with the marker name\n// using {@link module:engine/conversion/mapper~Mapper#bindElementToMarker}.\n//\n// @returns {Function} Add marker converter.\nfunction insertMarkerData( viewCreator: MarkerDataCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\tmarkerName: string;\n\t\t\tmarkerRange: ModelRange;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst viewMarkerData = viewCreator( data.markerName, conversionApi );\n\n\t\tif ( !viewMarkerData ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst markerRange = data.markerRange;\n\n\t\tif ( !conversionApi.consumable.consume( markerRange, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Adding closing data first to keep the proper order in the view.\n\t\thandleMarkerBoundary( markerRange, false, conversionApi, data, viewMarkerData );\n\t\thandleMarkerBoundary( markerRange, true, conversionApi, data, viewMarkerData );\n\n\t\tevt.stop();\n\t};\n}\n\n// Helper function for `insertMarkerData()` that marks a marker boundary at the beginning or end of given `range`.\nfunction handleMarkerBoundary(\n\trange: ModelRange,\n\tisStart: boolean,\n\tconversionApi: DowncastConversionApi,\n\tdata: { markerName: string },\n\tviewMarkerData: { name: string; group: string }\n): void {\n\tconst modelPosition = isStart ? range.start : range.end;\n\tconst elementAfter = modelPosition.nodeAfter && modelPosition.nodeAfter.is( 'element' ) ? modelPosition.nodeAfter : null;\n\tconst elementBefore = modelPosition.nodeBefore && modelPosition.nodeBefore.is( 'element' ) ? modelPosition.nodeBefore : null;\n\n\tif ( elementAfter || elementBefore ) {\n\t\tlet modelElement;\n\t\tlet isBefore;\n\n\t\t// If possible, we want to add `data-group-start-before` and `data-group-end-after` attributes.\n\t\tif ( isStart && elementAfter || !isStart && !elementBefore ) {\n\t\t\t// [<elementAfter>...</elementAfter> -> <elementAfter data-group-start-before=\"...\">...</elementAfter>\n\t\t\t// <parent>]<elementAfter> -> <parent><elementAfter data-group-end-before=\"...\">\n\t\t\tmodelElement = elementAfter;\n\t\t\tisBefore = true;\n\t\t} else {\n\t\t\t// <elementBefore>...</elementBefore>] -> <elementBefore data-group-end-after=\"...\">...</elementBefore>\n\t\t\t// </elementBefore>[</parent> -> </elementBefore data-group-start-after=\"...\"></parent>\n\t\t\tmodelElement = elementBefore;\n\t\t\tisBefore = false;\n\t\t}\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( modelElement! );\n\n\t\t// In rare circumstances, the model element may be not mapped to any view element and that would cause an error.\n\t\t// One of those situations is a soft break inside code block.\n\t\tif ( viewElement ) {\n\t\t\tinsertMarkerAsAttribute( viewElement, isStart, isBefore, conversionApi, data, viewMarkerData );\n\n\t\t\treturn;\n\t\t}\n\t}\n\n\tconst viewPosition = conversionApi.mapper.toViewPosition( modelPosition );\n\n\tinsertMarkerAsElement( viewPosition, isStart, conversionApi, data, viewMarkerData );\n}\n\n// Helper function for `insertMarkerData()` that marks a marker boundary in the view as an attribute on a view element.\nfunction insertMarkerAsAttribute(\n\tviewElement: ViewElement,\n\tisStart: boolean,\n\tisBefore: boolean,\n\tconversionApi: DowncastConversionApi,\n\tdata: { markerName: string },\n\tviewMarkerData: { name: string; group: string }\n) {\n\tconst attributeName = `data-${ viewMarkerData.group }-${ isStart ? 'start' : 'end' }-${ isBefore ? 'before' : 'after' }`;\n\n\tconst markerNames = viewElement.hasAttribute( attributeName ) ? viewElement.getAttribute( attributeName )!.split( ',' ) : [];\n\n\t// Adding marker name at the beginning to have the same order in the attribute as there is with marker elements.\n\tmarkerNames.unshift( viewMarkerData.name );\n\n\tconversionApi.writer.setAttribute( attributeName, markerNames.join( ',' ), viewElement );\n\tconversionApi.mapper.bindElementToMarker( viewElement, data.markerName );\n}\n\n// Helper function for `insertMarkerData()` that marks a marker boundary in the view as a separate view ui element.\nfunction insertMarkerAsElement(\n\tposition: ViewPosition,\n\tisStart: boolean,\n\tconversionApi: DowncastConversionApi,\n\tdata: { markerName: string },\n\tviewMarkerData: { name: string; group: string }\n) {\n\tconst viewElementName = `${ viewMarkerData.group }-${ isStart ? 'start' : 'end' }`;\n\n\tconst attrs = viewMarkerData.name ? { 'name': viewMarkerData.name } : null;\n\tconst viewElement = conversionApi.writer.createUIElement( viewElementName, attrs );\n\n\tconversionApi.writer.insert( position, viewElement );\n\tconversionApi.mapper.bindElementToMarker( viewElement, data.markerName );\n}\n\n// Function factory that creates a converter for removing a model marker data added by the {@link #insertMarkerData} converter.\n//\n// @returns {Function} Remove marker converter.\nfunction removeMarkerData( viewCreator: MarkerDataCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { markerName: string },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst viewData = viewCreator( data.markerName, conversionApi );\n\n\t\tif ( !viewData ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst elements = conversionApi.mapper.markerNameToElements( data.markerName );\n\n\t\tif ( !elements ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const element of elements ) {\n\t\t\tconversionApi.mapper.unbindElementFromMarkerName( element, data.markerName );\n\n\t\t\tif ( element.is( 'containerElement' ) ) {\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-start-before`, element );\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-start-after`, element );\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-end-before`, element );\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-end-after`, element );\n\t\t\t} else {\n\t\t\t\tconversionApi.writer.clear( conversionApi.writer.createRangeOn( element ), element );\n\t\t\t}\n\t\t}\n\n\t\tconversionApi.writer.clearClonedElementsGroup( data.markerName );\n\n\t\tevt.stop();\n\n\t\tfunction removeMarkerFromAttribute( attributeName: string, element: ViewElement ): void {\n\t\t\tif ( element.hasAttribute( attributeName ) ) {\n\t\t\t\tconst markerNames = new Set( element.getAttribute( attributeName )!.split( ',' ) );\n\n\t\t\t\tmarkerNames.delete( viewData!.name );\n\n\t\t\t\tif ( markerNames.size == 0 ) {\n\t\t\t\t\tconversionApi.writer.removeAttribute( attributeName, element );\n\t\t\t\t} else {\n\t\t\t\t\tconversionApi.writer.setAttribute( attributeName, Array.from( markerNames ).join( ',' ), element );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\n// Function factory that creates a converter which converts the set/change/remove attribute changes from the model to the view.\n//\n// Attributes from the model are converted to the view element attributes in the view. You may provide a custom function to generate\n// a key-value attribute pair to add/change/remove. If not provided, model attributes will be converted to view element\n// attributes on a one-to-one basis.\n//\n// *Note:** The provided attribute creator should always return the same `key` for a given attribute from the model.\n//\n// The converter automatically consumes the corresponding value from the consumables list and stops the event (see\n// {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}).\n//\n//\t\tmodelDispatcher.on( 'attribute:customAttr:myElem', changeAttribute( ( value, data ) => {\n//\t\t\t// Change attribute key from `customAttr` to `class` in the view.\n//\t\t\tconst key = 'class';\n//\t\t\tlet value = data.attributeNewValue;\n//\n//\t\t\t// Force attribute value to 'empty' if the model element is empty.\n//\t\t\tif ( data.item.childCount === 0 ) {\n//\t\t\t\tvalue = 'empty';\n//\t\t\t}\n//\n//\t\t\t// Return the key-value pair.\n//\t\t\treturn { key, value };\n//\t\t} ) );\n//\n// @param {Function} [attributeCreator] Function returning an object with two properties: `key` and `value`, which\n// represent the attribute key and attribute value to be set on a {@link module:engine/view/element~Element view element}.\n// The function is passed the model attribute value as the first parameter and additional data about the change as the second parameter.\n// @returns {Function} Set/change attribute converter.\nfunction changeAttribute( attributeCreator: AttributeCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem: ModelElement;\n\t\t\trange: ModelRange;\n\t\t\tattributeKey: string;\n\t\t\tattributeOldValue: unknown;\n\t\t\tattributeNewValue: unknown;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst oldAttribute = attributeCreator( data.attributeOldValue, conversionApi, data );\n\t\tconst newAttribute = attributeCreator( data.attributeNewValue, conversionApi, data );\n\n\t\tif ( !oldAttribute && !newAttribute ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconversionApi.consumable.consume( data.item, evt.name );\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item );\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// If model item cannot be mapped to a view element, it means item is not an `Element` instance but a `TextProxy` node.\n\t\t// Only elements can have attributes in a view so do not proceed for anything else (#1587).\n\t\tif ( !viewElement ) {\n\t\t\t/**\n\t\t\t * This error occurs when a {@link module:engine/model/textproxy~TextProxy text node's} attribute is to be downcasted\n\t\t\t * by an {@link module:engine/conversion/conversion~Conversion#attributeToAttribute `Attribute to Attribute converter`}.\n\t\t\t * In most cases it is caused by converters misconfiguration when only \"generic\" converter is defined:\n\t\t\t *\n\t\t\t *\t\teditor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t\t\t *\t\t\tmodel: 'attribute-name',\n\t\t\t *\t\t\tview: 'attribute-name'\n\t\t\t *\t\t} ) );\n\t\t\t *\n\t\t\t * and given attribute is used on text node, for example:\n\t\t\t *\n\t\t\t *\t\tmodel.change( writer => {\n\t\t\t *\t\t\twriter.insertText( 'Foo', { 'attribute-name': 'bar' }, parent, 0 );\n\t\t\t *\t\t} );\n\t\t\t *\n\t\t\t * In such cases, to convert the same attribute for both {@link module:engine/model/element~Element}\n\t\t\t * and {@link module:engine/model/textproxy~TextProxy `Text`} nodes, text specific\n\t\t\t * {@link module:engine/conversion/conversion~Conversion#attributeToElement `Attribute to Element converter`}\n\t\t\t * with higher {@link module:utils/priorities~PriorityString priority} must also be defined:\n\t\t\t *\n\t\t\t *\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\t *\t\t\tmodel: {\n\t\t\t *\t\t\t\tkey: 'attribute-name',\n\t\t\t *\t\t\t\tname: '$text'\n\t\t\t *\t\t\t},\n\t\t\t *\t\t\tview: ( value, { writer } ) => {\n\t\t\t *\t\t\t\treturn writer.createAttributeElement( 'span', { 'attribute-name': value } );\n\t\t\t *\t\t\t},\n\t\t\t *\t\t\tconverterPriority: 'high'\n\t\t\t *\t\t} ) );\n\t\t\t *\n\t\t\t * @error conversion-attribute-to-attribute-on-text\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-attribute-to-attribute-on-text', conversionApi.dispatcher, data );\n\t\t}\n\n\t\t// First remove the old attribute if there was one.\n\t\tif ( data.attributeOldValue !== null && oldAttribute ) {\n\t\t\tif ( oldAttribute.key == 'class' ) {\n\t\t\t\tconst classes = toArray( oldAttribute.value );\n\n\t\t\t\tfor ( const className of classes ) {\n\t\t\t\t\tviewWriter.removeClass( className, viewElement );\n\t\t\t\t}\n\t\t\t} else if ( oldAttribute.key == 'style' ) {\n\t\t\t\tconst keys = Object.keys( oldAttribute.value );\n\n\t\t\t\tfor ( const key of keys ) {\n\t\t\t\t\tviewWriter.removeStyle( key, viewElement );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tviewWriter.removeAttribute( oldAttribute.key, viewElement );\n\t\t\t}\n\t\t}\n\n\t\t// Then set the new attribute.\n\t\tif ( data.attributeNewValue !== null && newAttribute ) {\n\t\t\tif ( newAttribute.key == 'class' ) {\n\t\t\t\tconst classes = toArray( newAttribute.value );\n\n\t\t\t\tfor ( const className of classes ) {\n\t\t\t\t\tviewWriter.addClass( className, viewElement );\n\t\t\t\t}\n\t\t\t} else if ( newAttribute.key == 'style' ) {\n\t\t\t\tconst keys = Object.keys( newAttribute.value );\n\n\t\t\t\tfor ( const key of keys ) {\n\t\t\t\t\tviewWriter.setStyle( key, ( newAttribute.value as Record<string, string> )[ key ], viewElement );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tviewWriter.setAttribute( newAttribute.key, newAttribute.value as string, viewElement );\n\t\t\t}\n\t\t}\n\t};\n}\n\n// Function factory that creates a converter which converts the text inside marker's range. The converter wraps the text with\n// {@link module:engine/view/attributeelement~AttributeElement} created from the provided descriptor.\n// See {link module:engine/conversion/downcasthelpers~createViewElementFromHighlightDescriptor}.\n//\n// It can also be used to convert the selection that is inside a marker. In that case, an empty attribute element will be\n// created and the selection will be put inside it.\n//\n// If the highlight descriptor does not provide the `priority` property, `10` will be used.\n//\n// If the highlight descriptor does not provide the `id` property, the name of the marker will be used.\n//\n// This converter binds the created {@link module:engine/view/attributeelement~AttributeElement attribute elemens} with the marker name\n// using the {@link module:engine/conversion/mapper~Mapper#bindElementToMarker} method.\n//\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor|Function} highlightDescriptor\n// @returns {Function}\nfunction highlightText( highlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem?: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\t\trange?: ModelRange;\n\t\t\tmarkerRange: ModelRange;\n\t\t\tmarkerName: string;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !data.item ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !( data.item instanceof ModelSelection || data.item instanceof ModelDocumentSelection ) && !data.item.is( '$textProxy' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst descriptor = prepareDescriptor( highlightDescriptor, data, conversionApi );\n\n\t\tif ( !descriptor ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewElement = createViewElementFromHighlightDescriptor( viewWriter, descriptor );\n\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\tif ( data.item instanceof ModelSelection || data.item instanceof ModelDocumentSelection ) {\n\t\t\tviewWriter.wrap( viewSelection.getFirstRange()!, viewElement );\n\t\t} else {\n\t\t\tconst viewRange = conversionApi.mapper.toViewRange( data.range! );\n\t\t\tconst rangeAfterWrap = viewWriter.wrap( viewRange, viewElement );\n\n\t\t\tfor ( const element of rangeAfterWrap.getItems() ) {\n\t\t\t\tif ( element.is( 'attributeElement' ) && element.isSimilar( viewElement ) ) {\n\t\t\t\t\tconversionApi.mapper.bindElementToMarker( element, data.markerName );\n\n\t\t\t\t\t// One attribute element is enough, because all of them are bound together by the view writer.\n\t\t\t\t\t// Mapper uses this binding to get all the elements no matter how many of them are registered in the mapper.\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\n// Converter function factory. It creates a function which applies the marker's highlight to an element inside the marker's range.\n//\n// The converter checks if an element has the `addHighlight` function stored as a\n// {@link module:engine/view/element~Element#_setCustomProperty custom property} and, if so, uses it to apply the highlight.\n// In such case the converter will consume all element's children, assuming that they were handled by the element itself.\n//\n// When the `addHighlight` custom property is not present, the element is not converted in any special way.\n// This means that converters will proceed to convert the element's child nodes.\n//\n// If the highlight descriptor does not provide the `priority` property, `10` will be used.\n//\n// If the highlight descriptor does not provide the `id` property, the name of the marker will be used.\n//\n// This converter binds altered {@link module:engine/view/containerelement~ContainerElement container elements} with the marker name using\n// the {@link module:engine/conversion/mapper~Mapper#bindElementToMarker} method.\n//\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor|Function} highlightDescriptor\n// @returns {Function}\nfunction highlightElement( highlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem?: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\t\tmarkerName: string;\n\t\t\tmarkerRange: ModelRange;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !data.item ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !( data.item instanceof ModelElement ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst descriptor = prepareDescriptor( highlightDescriptor, data, conversionApi );\n\n\t\tif ( !descriptor ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item );\n\n\t\tif ( viewElement && viewElement.getCustomProperty( 'addHighlight' ) ) {\n\t\t\t// Consume element itself.\n\t\t\tconversionApi.consumable.consume( data.item, evt.name );\n\n\t\t\t// Consume all children nodes.\n\t\t\tfor ( const value of ModelRange._createIn( data.item ) ) {\n\t\t\t\tconversionApi.consumable.consume( value.item, evt.name );\n\t\t\t}\n\n\t\t\tconst addHighlightCallback = viewElement.getCustomProperty( 'addHighlight' ) as AddHighlightCallback;\n\n\t\t\taddHighlightCallback( viewElement, descriptor, conversionApi.writer );\n\n\t\t\tconversionApi.mapper.bindElementToMarker( viewElement, data.markerName );\n\t\t}\n\t};\n}\n\n// Function factory that creates a converter which converts the removing model marker to the view.\n//\n// Both text nodes and elements are handled by this converter but they are handled a bit differently.\n//\n// Text nodes are unwrapped using the {@link module:engine/view/attributeelement~AttributeElement attribute element} created from the\n// provided highlight descriptor. See {link module:engine/conversion/downcasthelpers~HighlightDescriptor}.\n//\n// For elements, the converter checks if an element has the `removeHighlight` function stored as a\n// {@link module:engine/view/element~Element#_setCustomProperty custom property}. If so, it uses it to remove the highlight.\n// In such case, the children of that element will not be converted.\n//\n// When `removeHighlight` is not present, the element is not converted in any special way.\n// The converter will proceed to convert the element's child nodes instead.\n//\n// If the highlight descriptor does not provide the `priority` property, `10` will be used.\n//\n// If the highlight descriptor does not provide the `id` property, the name of the marker will be used.\n//\n// This converter unbinds elements from the marker name.\n//\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor|Function} highlightDescriptor\n// @returns {Function}\nfunction removeHighlight( highlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\tmarkerName: string;\n\t\t\tmarkerRange: ModelRange;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\t// This conversion makes sense only for non-collapsed range.\n\t\tif ( data.markerRange.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst descriptor = prepareDescriptor( highlightDescriptor, data, conversionApi );\n\n\t\tif ( !descriptor ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// View element that will be used to unwrap `AttributeElement`s.\n\t\tconst viewHighlightElement = createViewElementFromHighlightDescriptor( conversionApi.writer, descriptor );\n\n\t\t// Get all elements bound with given marker name.\n\t\tconst elements = conversionApi.mapper.markerNameToElements( data.markerName );\n\n\t\tif ( !elements ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const element of elements ) {\n\t\t\tconversionApi.mapper.unbindElementFromMarkerName( element, data.markerName );\n\n\t\t\tif ( element.is( 'attributeElement' ) ) {\n\t\t\t\tconversionApi.writer.unwrap( conversionApi.writer.createRangeOn( element ), viewHighlightElement );\n\t\t\t} else {\n\t\t\t\t// if element.is( 'containerElement' ).\n\t\t\t\tconst removeHighlightCallback = element.getCustomProperty( 'removeHighlight' ) as RemoveHighlightCallback;\n\n\t\t\t\tremoveHighlightCallback( element, descriptor.id!, conversionApi.writer );\n\t\t\t}\n\t\t}\n\n\t\tconversionApi.writer.clearClonedElementsGroup( data.markerName );\n\n\t\tevt.stop();\n\t};\n}\n\n// Model element to view element conversion helper.\n//\n// See {@link ~DowncastHelpers#elementToElement `.elementToElement()` downcast helper} for examples and config params description.\n//\n// @param {Object} config Conversion configuration.\n// @param {String|Object} config.model The description or a name of the model element to convert.\n// @param {String|Array.<String>} [config.model.attributes] List of attributes triggering element reconversion.\n// @param {Boolean} [config.model.children] Should reconvert element if the list of model child nodes changed.\n// @param {module:engine/view/elementdefinition~ElementDefinition|module:engine/conversion/downcasthelpers~ElementCreatorFunction}\n// config.view\n// @returns {Function} Conversion helper.\nfunction downcastElementToElement( config: {\n\tmodel: string | {\n\t\tname: string;\n\t\tattributes?: string | Array<string>;\n\t\tchildren?: boolean;\n\t};\n\tview: ElementDefinition | ElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconst model = normalizeModelElementConfig( config.model );\n\tconst view = normalizeToElementConfig( config.view, 'container' );\n\n\t// Trigger reconversion on children list change if element is a subject to any reconversion.\n\t// This is required to be able to trigger Differ#refreshItem() on a direct child of the reconverted element.\n\tif ( model.attributes.length ) {\n\t\tmodel.children = true;\n\t}\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastInsertEvent<ModelElement>>(\n\t\t\t`insert:${ model.name }`,\n\t\t\tinsertElement( view, createConsumer( model ) ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\n\t\tif ( model.children || model.attributes.length ) {\n\t\t\tdispatcher.on<DowncastReduceChangesEvent>( 'reduceChanges', createChangeReducer( model ), { priority: 'low' } );\n\t\t}\n\t};\n}\n\n// Model element to view structure conversion helper.\n//\n// See {@link ~DowncastHelpers#elementToStructure `.elementToStructure()` downcast helper} for examples and config params description.\n//\n// @param {Object} config Conversion configuration.\n// @param {String|Object} config.model\n// @param {String} [config.model.name]\n// @param {Array.<String>} [config.model.attributes]\n// @param {module:engine/conversion/downcasthelpers~StructureCreatorFunction} config.view\n// @returns {Function} Conversion helper.\nfunction downcastElementToStructure(\n\tconfig: {\n\t\tmodel: string | {\n\t\t\tname: string;\n\t\t\tattributes?: string | Array<string>;\n\t\t};\n\t\tview: StructureCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t}\n) {\n\tconst model = normalizeModelElementConfig( config.model );\n\tconst view = normalizeToElementConfig( config.view, 'container' );\n\n\t// Trigger reconversion on children list change because it always needs to use slots to put children in proper places.\n\t// This is required to be able to trigger Differ#refreshItem() on a direct child of the reconverted element.\n\tmodel.children = true;\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tif ( dispatcher._conversionApi.schema.checkChild( model.name, '$text' ) ) {\n\t\t\t/**\n\t\t\t * This error occurs when a {@link module:engine/model/element~Element model element} is downcasted\n\t\t\t * via {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure} helper but the element was\n\t\t\t * allowed to host `$text` by the {@link module:engine/model/schema~Schema model schema}.\n\t\t\t *\n\t\t\t * For instance, this may be the result of `myElement` allowing the content of\n\t\t\t * {@glink framework/guides/deep-dive/schema#generic-items `$block`} in its schema definition:\n\t\t\t *\n\t\t\t *\t\t// Element definition in schema.\n\t\t\t *\t\tschema.register( 'myElement', {\n\t\t\t *\t\t\tallowContentOf: '$block',\n\t\t\t *\n\t\t\t *\t\t\t// ...\n\t\t\t *\t\t} );\n\t\t\t *\n\t\t\t *\t\t// ...\n\t\t\t *\n\t\t\t *\t\t// Conversion of myElement with the use of elementToStructure().\n\t\t\t *\t\teditor.conversion.for( 'downcast' ).elementToStructure( {\n\t\t\t *\t\t\tmodel: 'myElement',\n\t\t\t *\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t *\t\t\t\t// ...\n\t\t\t *\t\t\t}\n\t\t\t *\t\t} );\n\t\t\t *\n\t\t\t * In such case, {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`} helper\n\t\t\t * can be used instead to get around this problem:\n\t\t\t *\n\t\t\t *\t\teditor.conversion.for( 'downcast' ).elementToElement( {\n\t\t\t *\t\t\tmodel: 'myElement',\n\t\t\t *\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t *\t\t\t\t// ...\n\t\t\t *\t\t\t}\n\t\t\t *\t\t} );\n\t\t\t *\n\t\t\t * @error conversion-element-to-structure-disallowed-text\n\t\t\t * @param {String} elementName The name of the element the structure is to be created for.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-element-to-structure-disallowed-text', dispatcher, { elementName: model.name } );\n\t\t}\n\n\t\tdispatcher.on<DowncastInsertEvent<ModelElement>>(\n\t\t\t`insert:${ model.name }`,\n\t\t\tinsertStructure( view, createConsumer( model ) ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\n\t\tdispatcher.on<DowncastReduceChangesEvent>( 'reduceChanges', createChangeReducer( model ), { priority: 'low' } );\n\t};\n}\n\n// Model attribute to view element conversion helper.\n//\n// See {@link ~DowncastHelpers#attributeToElement `.attributeToElement()` downcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {String|Object} config.model The key of the attribute to convert from or a `{ key, values }` object. `values` is an array\n// of `String`s with possible values if the model attribute is an enumerable.\n// @param {module:engine/view/elementdefinition~ElementDefinition|module:engine/conversion/downcasthelpers~AttributeElementCreatorFunction|\n// Object} config.view A view element definition or a function that takes the model attribute value and\n// {@link module:engine/view/downcastwriter~DowncastWriter view downcast writer} as parameters and returns a view attribute element.\n// If `config.model.values` is given, `config.view` should be an object assigning values from `config.model.values` to view element\n// definitions or functions.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction downcastAttributeToElement( config: {\n\tmodel: string | {\n\t\tkey: string;\n\t\tname?: string;\n\t\tvalues?: Array<string>;\n\t};\n\tview: ElementDefinition | AttributeElementCreatorFunction | Record<string, ElementDefinition | AttributeElementCreatorFunction>;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tlet model = config.model;\n\n\tif ( typeof model == 'string' ) {\n\t\tmodel = { key: model };\n\t}\n\n\tlet eventName = `attribute:${ model.key }` as const;\n\n\tif ( model.name ) {\n\t\teventName += ':' + model.name;\n\t}\n\n\tif ( model.values ) {\n\t\tfor ( const modelValue of model.values ) {\n\t\t\t( config.view as any )[ modelValue ] = normalizeToElementConfig( ( config.view as any )[ modelValue ], 'attribute' );\n\t\t}\n\t} else {\n\t\tconfig.view = normalizeToElementConfig( config.view as any, 'attribute' );\n\t}\n\n\tconst elementCreator = getFromAttributeCreator<AttributeElementCreatorFunction>( config );\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAttributeEvent>(\n\t\t\teventName,\n\t\t\twrap( elementCreator ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n// Model attribute to view attribute conversion helper.\n//\n// See {@link ~DowncastHelpers#attributeToAttribute `.attributeToAttribute()` downcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {String|Object} config.model The key of the attribute to convert from or a `{ key, values, [ name ] }` object describing\n// the attribute key, possible values and, optionally, an element name to convert from.\n// @param {String|Object|module:engine/conversion/downcasthelpers~AttributeCreatorFunction} config.view A view attribute key,\n// or a `{ key, value }` object or a function that takes the model attribute value and returns a `{ key, value }` object.\n// If `key` is `'class'`, `value` can be a `String` or an array of `String`s. If `key` is `'style'`, `value` is an object with\n// key-value pairs. In other cases, `value` is a `String`.\n// If `config.model.values` is set, `config.view` should be an object assigning values from `config.model.values` to\n// `{ key, value }` objects or a functions.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction downcastAttributeToAttribute( config: {\n\tmodel: string | {\n\t\tkey: string;\n\t\tname?: string;\n\t\tvalues?: Array<string>;\n\t};\n\tview: string | AttributeDescriptor | AttributeCreatorFunction | Record<string, AttributeDescriptor | AttributeCreatorFunction>;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tlet model = config.model;\n\n\tif ( typeof model == 'string' ) {\n\t\tmodel = { key: model };\n\t}\n\n\tlet eventName = `attribute:${ model.key }` as const;\n\n\tif ( model.name ) {\n\t\teventName += ':' + model.name;\n\t}\n\n\tif ( model.values ) {\n\t\tfor ( const modelValue of model.values ) {\n\t\t\t( config.view as any )[ modelValue ] = normalizeToAttributeConfig( ( config.view as any )[ modelValue ] );\n\t\t}\n\t} else {\n\t\tconfig.view = normalizeToAttributeConfig( config.view );\n\t}\n\n\tconst elementCreator = getFromAttributeCreator<AttributeCreatorFunction>( config );\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAttributeEvent<ModelElement>>(\n\t\t\teventName,\n\t\t\tchangeAttribute( elementCreator ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n// Model marker to view element conversion helper.\n//\n// See {@link ~DowncastHelpers#markerToElement `.markerToElement()` downcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {String} config.model The name of the model marker (or model marker group) to convert.\n// @param {module:engine/view/elementdefinition~ElementDefinition|Function} config.view A view element definition or a function\n// that takes the model marker data as a parameter and returns a view UI element.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction downcastMarkerToElement( config: {\n\tmodel: string;\n\tview: ElementDefinition | MarkerElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconst view = normalizeToElementConfig( config.view, 'ui' );\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ config.model }`,\n\t\t\tinsertUIElement( view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastRemoveMarkerEvent>(\n\t\t\t`removeMarker:${ config.model }`,\n\t\t\tremoveUIElement(),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n// Model marker to view data conversion helper.\n//\n// See {@link ~DowncastHelpers#markerToData `markerToData()` downcast helper} to learn more.\n//\n// @param {Object} config\n// @param {String} config.model\n// @param {Function} [config.view]\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal']\n// @returns {Function} Conversion helper.\nfunction downcastMarkerToData( config: {\n\tmodel: string;\n\tview?: MarkerDataCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tconst group = config.model;\n\tlet view = config.view;\n\n\t// Default conversion.\n\tif ( !view ) {\n\t\tview = markerName => ( {\n\t\t\tgroup,\n\t\t\tname: markerName.substr( config.model.length + 1 )\n\t\t} );\n\t}\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ group }`,\n\t\t\tinsertMarkerData( view! ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastRemoveMarkerEvent>(\n\t\t\t`removeMarker:${ group }`,\n\t\t\tremoveMarkerData( view! ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n// Model marker to highlight conversion helper.\n//\n// See {@link ~DowncastHelpers#markerToElement `.markerToElement()` downcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {String} config.model The name of the model marker (or model marker group) to convert.\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor|Function} config.view A highlight descriptor\n// that will be used for highlighting or a function that takes the model marker data as a parameter and returns a highlight descriptor.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction downcastMarkerToHighlight( config: {\n\tmodel: string;\n\tview: HighlightDescriptor | HighlightDescriptorCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ config.model }`,\n\t\t\thighlightText( config.view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ config.model }`,\n\t\t\thighlightElement( config.view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastRemoveMarkerEvent>(\n\t\t\t`removeMarker:${ config.model }`,\n\t\t\tremoveHighlight( config.view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n// Takes `config.model`, and converts it to an object with normalized structure.\n//\n// @param {String|Object} model Model configuration or element name.\n// @param {String} model.name\n// @param {Array.<String>} [model.attributes]\n// @param {Boolean} [model.children]\n// @returns {Object}\nfunction normalizeModelElementConfig( model: string | {\n\tname: string;\n\tattributes?: string | Array<string>;\n\tchildren?: boolean;\n} ): NormalizedModelElementConfig {\n\tif ( typeof model == 'string' ) {\n\t\tmodel = { name: model };\n\t}\n\n\t// List of attributes that should trigger reconversion.\n\tif ( !model.attributes ) {\n\t\tmodel.attributes = [];\n\t} else if ( !Array.isArray( model.attributes ) ) {\n\t\tmodel.attributes = [ model.attributes ];\n\t}\n\n\t// Whether a children insertion/deletion should trigger reconversion.\n\tmodel.children = !!model.children;\n\n\treturn model as any;\n}\n\ninterface NormalizedModelElementConfig {\n\tname: string;\n\tattributes: Array<string>;\n\tchildren: boolean;\n}\n\n// Takes `config.view`, and if it is an {@link module:engine/view/elementdefinition~ElementDefinition}, converts it\n// to a function (because lower level converters accept only element creator functions).\n//\n// @param {module:engine/view/elementdefinition~ElementDefinition|Function} view View configuration.\n// @param {'container'|'attribute'|'ui'} viewElementType View element type to create.\n// @returns {Function} Element creator function to use in lower level converters.\nfunction normalizeToElementConfig<T extends Function>(\n\tview: ElementDefinition | T,\n\tviewElementType: 'container' | 'attribute' | 'ui'\n): T {\n\tif ( typeof view == 'function' ) {\n\t\t// If `view` is already a function, don't do anything.\n\t\treturn view as any;\n\t}\n\n\treturn ( ( modelData: unknown, conversionApi: DowncastConversionApi ) =>\n\t\tcreateViewElementFromDefinition( view, conversionApi, viewElementType ) ) as any;\n}\n\n// Creates a view element instance from the provided {@link module:engine/view/elementdefinition~ElementDefinition} and class.\n//\n// @param {module:engine/view/elementdefinition~ElementDefinition} viewElementDefinition\n// @param {module:engine/view/downcastwriter~DowncastWriter} viewWriter\n// @param {'container'|'attribute'|'ui'} viewElementType\n// @returns {module:engine/view/element~Element}\nfunction createViewElementFromDefinition(\n\tviewElementDefinition: ElementDefinition,\n\tconversionApi: DowncastConversionApi,\n\tviewElementType: 'container' | 'attribute' | 'ui'\n): ViewElement {\n\tif ( typeof viewElementDefinition == 'string' ) {\n\t\t// If `viewElementDefinition` is given as a `String`, normalize it to an object with `name` property.\n\t\tviewElementDefinition = { name: viewElementDefinition };\n\t}\n\n\tlet element: ViewElement;\n\tconst viewWriter = conversionApi.writer;\n\tconst attributes = Object.assign( {}, viewElementDefinition.attributes );\n\n\tif ( viewElementType == 'container' ) {\n\t\telement = viewWriter.createContainerElement( viewElementDefinition.name, attributes );\n\t} else if ( viewElementType == 'attribute' ) {\n\t\tconst options = {\n\t\t\tpriority: viewElementDefinition.priority || ViewAttributeElement.DEFAULT_PRIORITY\n\t\t};\n\n\t\telement = viewWriter.createAttributeElement( viewElementDefinition.name, attributes, options );\n\t} else {\n\t\t// 'ui'.\n\t\telement = viewWriter.createUIElement( viewElementDefinition.name, attributes );\n\t}\n\n\tif ( viewElementDefinition.styles ) {\n\t\tconst keys = Object.keys( viewElementDefinition.styles );\n\n\t\tfor ( const key of keys ) {\n\t\t\tviewWriter.setStyle( key, viewElementDefinition.styles[ key ], element );\n\t\t}\n\t}\n\n\tif ( viewElementDefinition.classes ) {\n\t\tconst classes = viewElementDefinition.classes;\n\n\t\tif ( typeof classes == 'string' ) {\n\t\t\tviewWriter.addClass( classes, element );\n\t\t} else {\n\t\t\tfor ( const className of classes ) {\n\t\t\t\tviewWriter.addClass( className, element );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn element;\n}\n\nfunction getFromAttributeCreator<T extends AttributeElementCreatorFunction | AttributeCreatorFunction>( config: any ): T {\n\tif ( config.model.values ) {\n\t\treturn ( ( modelAttributeValue: any, conversionApi: DowncastConversionApi, data: any ) => {\n\t\t\tconst view = config.view[ modelAttributeValue ];\n\n\t\t\tif ( view ) {\n\t\t\t\treturn view( modelAttributeValue, conversionApi, data );\n\t\t\t}\n\n\t\t\treturn null;\n\t\t} ) as any;\n\t} else {\n\t\treturn config.view;\n\t}\n}\n\n// Takes the configuration, adds default parameters if they do not exist and normalizes other parameters to be used in downcast converters\n// for generating a view attribute.\n//\n// @param {Object} view View configuration.\nfunction normalizeToAttributeConfig( view: any ): AttributeCreatorFunction {\n\tif ( typeof view == 'string' ) {\n\t\treturn modelAttributeValue => ( { key: view, value: modelAttributeValue as string } );\n\t} else if ( typeof view == 'object' ) {\n\t\t// { key, value, ... }\n\t\tif ( view.value ) {\n\t\t\treturn () => view;\n\t\t}\n\t\t// { key, ... }\n\t\telse {\n\t\t\treturn modelAttributeValue => ( { key: view.key, value: modelAttributeValue as string } );\n\t\t}\n\t} else {\n\t\t// function.\n\t\treturn view;\n\t}\n}\n\n// Helper function for `highlight`. Prepares the actual descriptor object using value passed to the converter.\nfunction prepareDescriptor(\n\thighlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction,\n\tdata: {\n\t\tmarkerName: string;\n\t\tmarkerRange: ModelRange;\n\t},\n\tconversionApi: DowncastConversionApi\n): HighlightDescriptor | null {\n\t// If passed descriptor is a creator function, call it. If not, just use passed value.\n\tconst descriptor = typeof highlightDescriptor == 'function' ?\n\t\thighlightDescriptor( data, conversionApi ) :\n\t\thighlightDescriptor;\n\n\tif ( !descriptor ) {\n\t\treturn null;\n\t}\n\n\t// Apply default descriptor priority.\n\tif ( !descriptor.priority ) {\n\t\tdescriptor.priority = 10;\n\t}\n\n\t// Default descriptor id is marker name.\n\tif ( !descriptor.id ) {\n\t\tdescriptor.id = data.markerName;\n\t}\n\n\treturn descriptor;\n}\n\n// Creates a function that checks a single differ diff item whether it should trigger reconversion.\n//\n// @param {Object} model A normalized `config.model` converter configuration.\n// @param {String} model.name The name of element.\n// @param {Array.<String>} model.attributes The list of attribute names that should trigger reconversion.\n// @param {Boolean} [model.children] Whether the child list change should trigger reconversion.\n// @returns {Function}\nfunction createChangeReducerCallback( model: NormalizedModelElementConfig ) {\n\treturn ( node: ModelNode, change: DiffItem | DiffItemReinsert ): boolean => {\n\t\tif ( !node.is( 'element', model.name ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( change.type == 'attribute' ) {\n\t\t\tif ( model.attributes.includes( change.attributeKey ) ) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t} else {\n\t\t\t/* istanbul ignore else: This is always true because otherwise it would not register a reducer callback. */\n\t\t\tif ( model.children ) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t};\n}\n\n// Creates a `reduceChanges` event handler for reconversion.\n//\n// @param {Object} model A normalized `config.model` converter configuration.\n// @param {String} model.name The name of element.\n// @param {Array.<String>} model.attributes The list of attribute names that should trigger reconversion.\n// @param {Boolean} [model.children] Whether the child list change should trigger reconversion.\n// @returns {Function}\nfunction createChangeReducer( model: NormalizedModelElementConfig ) {\n\tconst shouldReplace = createChangeReducerCallback( model );\n\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { changes: Iterable<DiffItem | DiffItemReinsert>; reconvertedElements?: Set<ModelNode> }\n\t) => {\n\t\tconst reducedChanges: Array<DiffItem | DiffItemReinsert> = [];\n\n\t\tif ( !data.reconvertedElements ) {\n\t\t\tdata.reconvertedElements = new Set();\n\t\t}\n\n\t\tfor ( const change of data.changes ) {\n\t\t\t// For attribute use node affected by the change.\n\t\t\t// For insert or remove use parent element because we need to check if it's added/removed child.\n\t\t\tconst node = change.type == 'attribute' ? change.range.start.nodeAfter : change.position.parent as ModelNode;\n\n\t\t\tif ( !node || !shouldReplace( node, change ) ) {\n\t\t\t\treducedChanges.push( change );\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If it's already marked for reconversion, so skip this change, otherwise add the diff items.\n\t\t\tif ( !data.reconvertedElements.has( node ) ) {\n\t\t\t\tdata.reconvertedElements.add( node );\n\n\t\t\t\tconst position = ModelPosition._createBefore( node );\n\n\t\t\t\treducedChanges.push( {\n\t\t\t\t\ttype: 'remove',\n\t\t\t\t\tname: ( node as ModelElement ).name,\n\t\t\t\t\tposition,\n\t\t\t\t\tlength: 1\n\t\t\t\t} as any, {\n\t\t\t\t\ttype: 'reinsert',\n\t\t\t\t\tname: ( node as ModelElement ).name,\n\t\t\t\t\tposition,\n\t\t\t\t\tlength: 1\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\n\t\tdata.changes = reducedChanges;\n\t};\n}\n\n// Creates a function that checks if an element and its watched attributes can be consumed and consumes them.\n//\n// @param {Object} model A normalized `config.model` converter configuration.\n// @param {String} model.name The name of element.\n// @param {Array.<String>} model.attributes The list of attribute names that should trigger reconversion.\n// @param {Boolean} [model.children] Whether the child list change should trigger reconversion.\n// @returns {module:engine/conversion/downcasthelpers~ConsumerFunction}\nfunction createConsumer( model: NormalizedModelElementConfig ): ConsumerFunction {\n\treturn ( node, consumable, options = {} ) => {\n\t\tconst events = [ 'insert' ];\n\n\t\t// Collect all set attributes that are triggering conversion.\n\t\tfor ( const attributeName of model.attributes ) {\n\t\t\tif ( node.hasAttribute( attributeName ) ) {\n\t\t\t\tevents.push( `attribute:${ attributeName }` );\n\t\t\t}\n\t\t}\n\n\t\tif ( !events.every( event => consumable.test( node, event ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !options.preflight ) {\n\t\t\tevents.forEach( event => consumable.consume( node, event ) );\n\t\t}\n\n\t\treturn true;\n\t};\n}\n\n// Creates a function that create view slots.\n//\n// @param {module:engine/model/element~Element} element\n// @param {Map.<module:engine/view/element~Element,Array.<module:engine/model/node~Node>>} slotsMap\n// @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\n// @returns {Function} Exposed by writer as createSlot().\nfunction createSlotFactory( element: ModelElement, slotsMap: Map<ViewElement, Array<ModelNode>>, conversionApi: DowncastConversionApi ) {\n\treturn ( writer: DowncastWriter, modeOrFilter: string | SlotFilter = 'children' ) => {\n\t\tconst slot = writer.createContainerElement( '$slot' );\n\n\t\tlet children: Array<ModelNode> | null = null;\n\n\t\tif ( modeOrFilter === 'children' ) {\n\t\t\tchildren = Array.from( element.getChildren() );\n\t\t} else if ( typeof modeOrFilter == 'function' ) {\n\t\t\tchildren = Array.from( element.getChildren() ).filter( element => modeOrFilter( element ) );\n\t\t} else {\n\t\t\t/**\n\t\t\t * Unknown slot mode was provided to `writer.createSlot()` in downcast converter.\n\t\t\t *\n\t\t\t * @error conversion-slot-mode-unknown\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-slot-mode-unknown', conversionApi.dispatcher, { modeOrFilter } );\n\t\t}\n\n\t\tslotsMap.set( slot, children );\n\n\t\treturn slot;\n\t};\n}\n\n// Checks if all children are covered by slots and there is no child that landed in multiple slots.\n//\n// @param {module:engine/model/element~Element}\n// @param {Map.<module:engine/view/element~Element,Array.<module:engine/model/node~Node>>} slotsMap\n// @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\nfunction validateSlotsChildren(\n\telement: ModelElement,\n\tslotsMap: Map<ViewElement, Array<ModelNode>>,\n\tconversionApi: DowncastConversionApi\n) {\n\tconst childrenInSlots = Array.from( slotsMap.values() ).flat();\n\tconst uniqueChildrenInSlots = new Set( childrenInSlots );\n\n\tif ( uniqueChildrenInSlots.size != childrenInSlots.length ) {\n\t\t/**\n\t\t * Filters provided to `writer.createSlot()` overlap (at least two filters accept the same child element).\n\t\t *\n\t\t * @error conversion-slot-filter-overlap\n\t\t * @param {module:engine/model/element~Element} element The element of which children would not be properly\n\t\t * allocated to multiple slots.\n\t\t */\n\t\tthrow new CKEditorError( 'conversion-slot-filter-overlap', conversionApi.dispatcher, { element } );\n\t}\n\n\tif ( uniqueChildrenInSlots.size != element.childCount ) {\n\t\t/**\n\t\t * Filters provided to `writer.createSlot()` are incomplete and exclude at least one children element (one of\n\t\t * the children elements would not be assigned to any of the slots).\n\t\t *\n\t\t * @error conversion-slot-filter-incomplete\n\t\t * @param {module:engine/model/element~Element} element The element of which children would not be properly\n\t\t * allocated to multiple slots.\n\t\t */\n\t\tthrow new CKEditorError( 'conversion-slot-filter-incomplete', conversionApi.dispatcher, { element } );\n\t}\n}\n\n// Fill slots with appropriate view elements.\n//\n// @param {module:engine/view/element~Element} viewElement\n// @param {Map.<module:engine/view/element~Element,Array.<module:engine/model/node~Node>>} slotsMap\n// @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\n// @param {Object} options\n// @param {Boolean} [options.reconversion]\nfunction fillSlots(\n\tviewElement: ViewElement,\n\tslotsMap: Map<ViewElement, Array<ModelNode>>,\n\tconversionApi: DowncastConversionApi,\n\toptions: { reconversion?: boolean }\n): void {\n\t// Set temporary position mapping to redirect child view elements into a proper slots.\n\tconversionApi.mapper.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', toViewPositionMapping, { priority: 'highest' } );\n\n\tlet currentSlot: ViewElement | null = null;\n\tlet currentSlotNodes: Array<ModelNode> | null = null;\n\n\t// Fill slots with nested view nodes.\n\tfor ( [ currentSlot, currentSlotNodes ] of slotsMap ) {\n\t\treinsertOrConvertNodes( viewElement, currentSlotNodes, conversionApi, options );\n\n\t\tconversionApi.writer.move(\n\t\t\tconversionApi.writer.createRangeIn( currentSlot ),\n\t\t\tconversionApi.writer.createPositionBefore( currentSlot )\n\t\t);\n\t\tconversionApi.writer.remove( currentSlot );\n\t}\n\n\tconversionApi.mapper.off( 'modelToViewPosition', toViewPositionMapping );\n\n\tfunction toViewPositionMapping( evt: unknown, data: {\n\t\tmapper: Mapper;\n\t\tmodelPosition: ModelPosition;\n\t\tviewPosition?: ViewPosition;\n\t\tisPhantom?: boolean;\n\t} ) {\n\t\tconst element = data.modelPosition.nodeAfter!;\n\n\t\t// Find the proper offset within the slot.\n\t\tconst index = currentSlotNodes!.indexOf( element );\n\n\t\tif ( index < 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdata.viewPosition = data.mapper.findPositionIn( currentSlot!, index );\n\t}\n}\n\n// Inserts view representation of `nodes` into the `viewElement` either by bringing back just removed view nodes\n// or by triggering conversion for them.\n//\n// @param {module:engine/view/element~Element} viewElement\n// @param {Iterable.<module:engine/model/element~Element>} modelNodes\n// @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\n// @param {Object} options\n// @param {Boolean} [options.reconversion]\nfunction reinsertOrConvertNodes(\n\tviewElement: ViewElement,\n\tmodelNodes: Iterable<ModelNode>,\n\tconversionApi: DowncastConversionApi,\n\toptions: { reconversion?: boolean }\n) {\n\t// Fill with nested view nodes.\n\tfor ( const modelChildNode of modelNodes ) {\n\t\t// Try reinserting the view node for the specified model node...\n\t\tif ( !reinsertNode( viewElement.root, modelChildNode, conversionApi, options ) ) {\n\t\t\t// ...or else convert the model element to the view.\n\t\t\tconversionApi.convertItem( modelChildNode );\n\t\t}\n\t}\n}\n\n// Checks if the view for the given model element could be reused and reinserts it to the view.\n//\n// @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} viewRoot\n// @param {module:engine/model/element~Element} modelElement\n// @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\n// @param {Object} options\n// @param {Boolean} [options.reconversion]\n// @returns {Boolean} `false` if view element can't be reused.\nfunction reinsertNode(\n\tviewRoot: ViewElement | ViewDocumentFragment,\n\tmodelNode: ModelNode,\n\tconversionApi: DowncastConversionApi,\n\toptions: { reconversion?: boolean }\n): boolean {\n\tconst { writer, mapper } = conversionApi;\n\n\t// Don't reinsert if this is not a reconversion...\n\tif ( !options.reconversion ) {\n\t\treturn false;\n\t}\n\n\tconst viewChildNode = mapper.toViewElement( modelNode as ModelElement );\n\n\t// ...or there is no view to reinsert or it was already inserted to the view structure...\n\tif ( !viewChildNode || viewChildNode.root == viewRoot ) {\n\t\treturn false;\n\t}\n\n\t// ...or it was strictly marked as not to be reused.\n\tif ( !conversionApi.canReuseView( viewChildNode ) ) {\n\t\treturn false;\n\t}\n\n\t// Otherwise reinsert the view node.\n\twriter.move(\n\t\twriter.createRangeOn( viewChildNode ),\n\t\tmapper.toViewPosition( ModelPosition._createBefore( modelNode ) )\n\t);\n\n\treturn true;\n}\n\n// The default consumer for insert events.\n// @param {module:engine/model/item~Item} item Model item.\n// @param {module:engine/conversion/modelconsumable~ModelConsumable} consumable The model consumable.\n// @param {Object} [options]\n// @param {Boolean} [options.preflight=false] Whether should consume or just check if can be consumed.\n// @returns {Boolean}\nfunction defaultConsumer(\n\titem: ModelItem,\n\tconsumable: ModelConsumable,\n\t{ preflight }: { preflight?: boolean } = {}\n): boolean | null {\n\tif ( preflight ) {\n\t\treturn consumable.test( item, 'insert' );\n\t} else {\n\t\treturn consumable.consume( item, 'insert' );\n\t}\n}\n\n/**\n * An object describing how the marker highlight should be represented in the view.\n *\n * Each text node contained in a highlighted range will be wrapped in a `<span>`\n * {@link module:engine/view/attributeelement~AttributeElement view attribute element} with CSS class(es), attributes and a priority\n * described by this object.\n *\n * Additionally, each {@link module:engine/view/containerelement~ContainerElement container element} can handle displaying the highlight\n * separately by providing the `addHighlight` and `removeHighlight` custom properties. In this case:\n *\n *  * The `HighlightDescriptor` object is passed to the `addHighlight` function upon conversion and should be used to apply the highlight to\n *  the element.\n *  * The descriptor `id` is passed to the `removeHighlight` function upon conversion and should be used to remove the highlight with the\n *  given ID from the element.\n *\n * @typedef {Object} module:engine/conversion/downcasthelpers~HighlightDescriptor\n *\n * @property {String|Array.<String>} classes A CSS class or an array of classes to set. If the descriptor is used to\n * create an {@link module:engine/view/attributeelement~AttributeElement attribute element} over text nodes, these classes will be set\n * on that attribute element. If the descriptor is applied to an element, usually these classes will be set on that element, however,\n * this depends on how the element converts the descriptor.\n *\n * @property {String} [id] Descriptor identifier. If not provided, it defaults to the converted marker's name.\n *\n * @property {Number} [priority] Descriptor priority. If not provided, it defaults to `10`. If the descriptor is used to create\n * an {@link module:engine/view/attributeelement~AttributeElement attribute element}, it will be that element's\n * {@link module:engine/view/attributeelement~AttributeElement#priority priority}. If the descriptor is applied to an element,\n * the priority will be used to determine which descriptor is more important.\n *\n * @property {Object} [attributes] Attributes to set. If the descriptor is used to create\n * an {@link module:engine/view/attributeelement~AttributeElement attribute element} over text nodes, these attributes will be set on that\n * attribute element. If the descriptor is applied to an element, usually these attributes will be set on that element, however,\n * this depends on how the element converts the descriptor.\n */\nexport interface HighlightDescriptor {\n\tclasses: string | Array<string>;\n\tid?: string;\n\tpriority?: number;\n\tattributes?: Record<string, string>;\n}\n\n/**\n * A filtering function used to choose model child nodes to be downcasted into the specific view\n * {@link module:engine/view/downcastwriter~DowncastWriter#createSlot \"slot\"} while executing the\n * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure `elementToStructure()`} converter.\n *\n * @callback module:engine/conversion/downcasthelpers~SlotFilter\n *\n * @param {module:engine/model/node~Node} node A model node.\n * @returns {Boolean} Whether the provided model node should be downcasted into this slot.\n *\n * @see module:engine/view/downcastwriter~DowncastWriter#createSlot\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n * @see module:engine/conversion/downcasthelpers~insertStructure\n */\nexport type SlotFilter = ( node: ModelNode ) => boolean;\n\n/**\n * A view element creator function that takes the model element and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi\n * downcast conversion API} as parameters and returns a view container element.\n *\n * @callback module:engine/conversion/downcasthelpers~ElementCreatorFunction\n * @param {module:engine/model/element~Element} element The model element to be converted to the view structure.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion interface.\n * @param {Object} data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`} event).\n * @param {module:engine/model/item~Item} data.item Inserted item.\n * @param {module:engine/model/range~Range} data.range Range spanning over inserted item.\n * @returns {module:engine/view/element~Element} The view element.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement\n * @see module:engine/conversion/downcasthelpers~insertElement\n */\nexport type ElementCreatorFunction = (\n\telement: ModelElement,\n\tconversionApi: DowncastConversionApi,\n\tdata: {\n\t\titem: ModelItem;\n\t\trange: ModelRange;\n\t}\n) => ViewElement | null;\n\n/**\n * A function that takes the model element and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast\n * conversion API} as parameters and returns a view container element with slots for model child nodes to be converted into.\n *\n * @callback module:engine/conversion/downcasthelpers~StructureCreatorFunction\n * @param {module:engine/model/element~Element} element The model element to be converted to the view structure.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion interface.\n * @param {Object} data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`} event).\n * @param {module:engine/model/item~Item} data.item Inserted item.\n * @param {module:engine/model/range~Range} data.range Range spanning over inserted item.\n * @returns {module:engine/view/element~Element} The view structure with slots for model child nodes.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n * @see module:engine/conversion/downcasthelpers~insertStructure\n */\nexport type StructureCreatorFunction = ElementCreatorFunction;\n\n/**\n * A view element creator function that takes the model attribute value and\n * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as parameters and returns a view\n * attribute element.\n *\n * @callback module:engine/conversion/downcasthelpers~AttributeElementCreatorFunction\n * @param {*} attributeValue The model attribute value to be converted to the view attribute element.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion interface.\n * @param {Object} data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`} event).\n * @param {module:engine/model/item~Item|module:engine/model/documentselection~DocumentSelection} data.item Changed item\n * or converted selection.\n * @param {module:engine/model/range~Range} data.range Range spanning over changed item or selection range.\n * @param {String} data.attributeKey Attribute key.\n * @param {*} data.attributeOldValue Attribute value before the change. This is `null` when selection attribute is converted.\n * @param {*} data.attributeNewValue New attribute value.\n * @returns {module:engine/view/attributeelement~AttributeElement} The view attribute element.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement\n * @see module:engine/conversion/downcasthelpers~wrap\n */\nexport type AttributeElementCreatorFunction = (\n\tattributeValue: any,\n\tconversionApi: DowncastConversionApi,\n\tdata: {\n\t\titem: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\trange: ModelRange;\n\t\tattributeKey: string;\n\t\tattributeOldValue: unknown;\n\t\tattributeNewValue: unknown;\n\t}\n) => ViewAttributeElement | null;\n\n/**\n * A function that takes the model attribute value and\n * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n * as parameters.\n *\n * @callback module:engine/conversion/downcasthelpers~AttributeCreatorFunction\n * @param {*} attributeValue The model attribute value to be converted to the view attribute element.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion interface.\n * @param {Object} data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`} event).\n * @param {module:engine/model/item~Item|module:engine/model/documentselection~DocumentSelection} data.item Changed item\n * or converted selection.\n * @param {module:engine/model/range~Range} data.range Range spanning over changed item or selection range.\n * @param {String} data.attributeKey Attribute key.\n * @param {*} data.attributeOldValue Attribute value before the change. This is `null` when selection attribute is converted.\n * @param {*} data.attributeNewValue New attribute value.\n * @returns {Object|null} A `{ key, value }` object. If `key` is `'class'`, `value` can be a `String` or an\n * array of `String`s. If `key` is `'style'`, `value` is an object with key-value pairs. In other cases, `value` is a `String`.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToAttribute\n */\nexport type AttributeCreatorFunction = (\n\tattributeValue: unknown,\n\tconversionApi: DowncastConversionApi,\n\tdata: {\n\t\titem: ModelItem;\n\t\trange: ModelRange;\n\t\tattributeKey: string;\n\t\tattributeOldValue: unknown;\n\t\tattributeNewValue: unknown;\n\t}\n) => AttributeDescriptor | null;\n\nexport type AttributeDescriptor = {\n\tkey: 'class';\n\tvalue: string | Array<string>;\n} | {\n\tkey: 'style';\n\tvalue: Record<string, string>;\n} | {\n\tkey: Exclude<string, 'class' | 'style'>;\n\tvalue: string;\n};\n\nexport type MarkerElementCreatorFunction = (\n\tdata: {\n\t\tmarkerRange: ModelRange;\n\t\tmarkerName: string;\n\t\tisOpening?: boolean;\n\t},\n\tconversionApi: DowncastConversionApi\n) => UIElement | null;\n\nexport type HighlightDescriptorCreatorFunction = (\n\tdata: {\n\t\tmarkerRange: ModelRange;\n\t\tmarkerName: string;\n\t},\n\tconversionApi: DowncastConversionApi\n) => HighlightDescriptor;\n\nexport type AddHighlightCallback = (\n\tviewElement: ViewElement,\n\tdescriptor: HighlightDescriptor,\n\twriter: DowncastWriter\n) => void;\n\nexport type RemoveHighlightCallback = (\n\tviewElement: ViewElement,\n\tid: string,\n\twriter: DowncastWriter\n) => void;\n\nexport type MarkerDataCreatorFunction = (\n\tmarkerName: string,\n\tconversionApi: DowncastConversionApi\n) => { name: string; group: string } | null;\n\n/**\n * A function that is expected to consume all the consumables that were used by the element creator.\n *\n * @callback module:engine/conversion/downcasthelpers~ConsumerFunction\n * @param {module:engine/model/element~Element} element The model element to be converted to the view structure.\n * @param {module:engine/conversion/modelconsumable~ModelConsumable} consumable The `ModelConsumable` same as in\n * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi#consumable `DowncastConversionApi.consumable`}.\n * @param {Object} [options]\n * @param {Boolean} [options.preflight=false] Whether should consume or just check if can be consumed.\n * @returns {Boolean} `true` if all consumable values were available and were consumed, `false` otherwise.\n *\n * @see module:engine/conversion/downcasthelpers~insertStructure\n */\nexport type ConsumerFunction = (\n\telement: ModelElement,\n\tconsumable: ModelConsumable,\n\toptions?: { preflight?: boolean }\n) => boolean | null;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type Node from '../node';\nimport type Position from '../position';\nimport type Schema from '../schema';\nimport type Writer from '../writer';\n\n/**\n * @module engine/model/utils/autoparagraphing\n */\n\n/**\n * Fixes all empty roots.\n *\n * @protected\n * @param {module:engine/model/writer~Writer} writer The model writer.\n * @returns {Boolean} `true` if any change has been applied, `false` otherwise.\n */\nexport function autoParagraphEmptyRoots( writer: Writer ): boolean {\n\tconst { schema, document } = writer.model;\n\n\tfor ( const rootName of document.getRootNames() ) {\n\t\tconst root = document.getRoot( rootName )!;\n\n\t\tif ( root.isEmpty && !schema.checkChild( root, '$text' ) ) {\n\t\t\t// If paragraph element is allowed in the root, create paragraph element.\n\t\t\tif ( schema.checkChild( root, 'paragraph' ) ) {\n\t\t\t\twriter.insertElement( 'paragraph', root );\n\n\t\t\t\t// Other roots will get fixed in the next post-fixer round. Those will be triggered\n\t\t\t\t// in the same batch no matter if this method was triggered by the post-fixing or not\n\t\t\t\t// (the above insertElement call will trigger the post-fixers).\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn false;\n}\n\n/**\n * Checks if the given node wrapped with a paragraph would be accepted by the schema in the given position.\n *\n * @internal\n * @protected\n * @param {module:engine/model/position~Position} position The position at which to check.\n * @param {module:engine/model/node~Node|String} nodeOrType The child node or child type to check.\n * @param {module:engine/model/schema~Schema} schema A schema instance used for element validation.\n */\nexport function isParagraphable(\n\tposition: Position,\n\tnodeOrType: Node | string,\n\tschema: Schema\n): boolean {\n\tconst context = schema.createContext( position );\n\n\t// When paragraph is allowed in this context...\n\tif ( !schema.checkChild( context, 'paragraph' ) ) {\n\t\treturn false;\n\t}\n\n\t// And a node would be allowed in this paragraph...\n\tif ( !schema.checkChild( context.push( 'paragraph' ), nodeOrType ) ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n/**\n * Inserts a new paragraph at the given position and returns a position inside that paragraph.\n *\n * @protected\n * @param {module:engine/model/position~Position} position The position where a paragraph should be inserted.\n * @param {module:engine/model/writer~Writer} writer The model writer.\n * @returns {module:engine/model/position~Position} Position inside the created paragraph.\n */\nexport function wrapInParagraph( position: Position, writer: Writer ): Position {\n\tconst paragraph = writer.createElement( 'paragraph' );\n\n\twriter.insert( paragraph, position );\n\n\treturn writer.createPositionAt( paragraph, 0 );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport Matcher, { type ClassPatterns, type MatcherPattern, type PropertyPatterns } from '../view/matcher';\nimport ConversionHelpers from './conversionhelpers';\n\nimport type { default as UpcastDispatcher, UpcastElementEvent, UpcastConversionApi, UpcastConversionData } from './upcastdispatcher';\nimport type ModelElement from '../model/element';\nimport type ModelRange from '../model/range';\nimport type ModelPosition from '../model/position';\nimport type { ViewDocumentFragment, ViewElement, ViewText } from '../index';\nimport type Mapper from './mapper';\nimport type Model from '../model/model';\nimport type ViewSelection from '../view/selection';\nimport type ViewDocumentSelection from '../view/documentselection';\nimport { isParagraphable, wrapInParagraph } from '../model/utils/autoparagraphing';\n\nimport { priorities, type EventInfo, type PriorityString } from '@ckeditor/ckeditor5-utils';\n\nimport { cloneDeep } from 'lodash-es';\n\n/**\n * Contains the {@link module:engine/view/view view} to {@link module:engine/model/model model} converters for\n * {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher}.\n *\n * @module engine/conversion/upcasthelpers\n */\n\n/**\n * Upcast conversion helper functions.\n *\n * Learn more about {@glink framework/guides/deep-dive/conversion/upcast upcast helpers}.\n *\n * @extends module:engine/conversion/conversionhelpers~ConversionHelpers\n */\nexport default class UpcastHelpers extends ConversionHelpers<UpcastDispatcher> {\n\t/**\n\t * View element to model element conversion helper.\n\t *\n\t * This conversion results in creating a model element. For example,\n\t * view `<p>Foo</p>` becomes `<paragraph>Foo</paragraph>` in the model.\n\t *\n\t * Keep in mind that the element will be inserted only if it is allowed\n\t * by {@link module:engine/model/schema~Schema schema} configuration.\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t *\t\t\tview: 'p',\n\t *\t\t\tmodel: 'paragraph'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t *\t\t\tview: 'p',\n\t *\t\t\tmodel: 'paragraph',\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'p',\n\t *\t\t\t\tclasses: 'fancy'\n\t *\t\t\t},\n\t *\t\t\tmodel: 'fancyParagraph'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t * \t\t\tview: {\n\t *\t\t\t\tname: 'p',\n\t *\t\t\t\tclasses: 'heading'\n\t * \t\t\t},\n\t * \t\t\tmodel: ( viewElement, conversionApi ) => {\n\t * \t\t\t\tconst modelWriter = conversionApi.writer;\n\t *\n\t * \t\t\t\treturn modelWriter.createElement( 'heading', { level: viewElement.getAttribute( 'data-level' ) } );\n\t * \t\t\t}\n\t * \t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #elementToElement\n\t * @param {Object} config Conversion configuration.\n\t * @param {module:engine/view/matcher~MatcherPattern} [config.view] Pattern matching all view elements which should be converted. If not\n\t * set, the converter will fire for every view element.\n\t * @param {String|module:engine/model/element~Element|Function} config.model Name of the model element, a model element instance or a\n\t * function that takes a view element and {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API}\n\t * and returns a model element. The model element will be inserted in the model.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/upcasthelpers~UpcastHelpers}\n\t */\n\tpublic elementToElement( config: {\n\t\tview: MatcherPattern;\n\t\tmodel: string | ElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastElementToElement( config ) );\n\t}\n\n\t/**\n\t * View element to model attribute conversion helper.\n\t *\n\t * This conversion results in setting an attribute on a model node. For example, view `<strong>Foo</strong>` becomes\n\t * `Foo` {@link module:engine/model/text~Text model text node} with `bold` attribute set to `true`.\n\t *\n\t * This helper is meant to set a model attribute on all the elements that are inside the converted element:\n\t *\n\t *\t\t<strong>Foo</strong>   -->   <strong><p>Foo</p></strong>   -->   <paragraph><$text bold=\"true\">Foo</$text></paragraph>\n\t *\n\t * Above is a sample of HTML code, that goes through autoparagraphing (first step) and then is converted (second step).\n\t * Even though `<strong>` is over `<p>` element, `bold=\"true\"` was added to the text. See\n\t * {@link module:engine/conversion/upcasthelpers~UpcastHelpers#attributeToAttribute} for comparison.\n\t *\n\t * Keep in mind that the attribute will be set only if it is allowed by {@link module:engine/model/schema~Schema schema} configuration.\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t *\t\t\tview: 'strong',\n\t *\t\t\tmodel: 'bold'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t *\t\t\tview: 'strong',\n\t *\t\t\tmodel: 'bold',\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'span',\n\t *\t\t\t\tclasses: 'bold'\n\t *\t\t\t},\n\t *\t\t\tmodel: 'bold'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'span',\n\t *\t\t\t\tclasses: [ 'styled', 'styled-dark' ]\n\t *\t\t\t},\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'styled',\n\t *\t\t\t\tvalue: 'dark'\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * \t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'span',\n\t *\t\t\t\tstyles: {\n\t *\t\t\t\t\t'font-size': /[\\s\\S]+/\n\t *\t\t\t\t}\n\t *\t\t\t},\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'fontSize',\n\t *\t\t\t\tvalue: ( viewElement, conversionApi ) => {\n\t *\t\t\t\t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t *\t\t\t\t\tconst value = fontSize.substr( 0, fontSize.length - 2 );\n\t *\n\t *\t\t\t\t\tif ( value <= 10 ) {\n\t *\t\t\t\t\t\treturn 'small';\n\t *\t\t\t\t\t} else if ( value > 12 ) {\n\t *\t\t\t\t\t\treturn 'big';\n\t *\t\t\t\t\t}\n\t *\n\t *\t\t\t\t\treturn null;\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #elementToAttribute\n\t * @param {Object} config Conversion configuration.\n\t * @param {module:engine/view/matcher~MatcherPattern} config.view Pattern matching all view elements which should be converted.\n\t * @param {String|Object} config.model Model attribute key or an object with `key` and `value` properties, describing\n\t * the model attribute. `value` property may be set as a function that takes a view element and\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API} and returns the value.\n\t * If `String` is given, the model attribute value will be set to `true`.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='low'] Converter priority.\n\t * @returns {module:engine/conversion/upcasthelpers~UpcastHelpers}\n\t */\n\tpublic elementToAttribute( config: {\n\t\tview: MatcherPattern;\n\t\tmodel: string | {\n\t\t\tkey: string;\n\t\t\tvalue: unknown;\n\t\t};\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastElementToAttribute( config ) );\n\t}\n\n\t/**\n\t * View attribute to model attribute conversion helper.\n\t *\n\t * This conversion results in setting an attribute on a model node. For example, view `<img src=\"foo.jpg\"></img>` becomes\n\t * `<imageBlock source=\"foo.jpg\"></imageBlock>` in the model.\n\t *\n\t * This helper is meant to convert view attributes from view elements which got converted to the model, so the view attribute\n\t * is set only on the corresponding model node:\n\t *\n\t *\t\t<div class=\"dark\"><div>foo</div></div>    -->    <div dark=\"true\"><div>foo</div></div>\n\t *\n\t * Above, `class=\"dark\"` attribute is added only to the `<div>` elements that has it. This is in contrary to\n\t * {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToAttribute} which sets attributes for\n\t * all the children in the model:\n\t *\n\t *\t\t<strong>Foo</strong>   -->   <strong><p>Foo</p></strong>   -->   <paragraph><$text bold=\"true\">Foo</$text></paragraph>\n\t *\n\t * Above is a sample of HTML code, that goes through autoparagraphing (first step) and then is converted (second step).\n\t * Even though `<strong>` is over `<p>` element, `bold=\"true\"` was added to the text.\n\t *\n\t * Keep in mind that the attribute will be set only if it is allowed by {@link module:engine/model/schema~Schema schema} configuration.\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: 'src',\n\t *\t\t\tmodel: 'source'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: { key: 'src' },\n\t *\t\t\tmodel: 'source'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: { key: 'src' },\n\t *\t\t\tmodel: 'source',\n\t *\t\t\tconverterPriority: 'normal'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tkey: 'data-style',\n\t *\t\t\t\tvalue: /[\\s\\S]+/\n\t *\t\t\t},\n\t *\t\t\tmodel: 'styled'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'img',\n\t *\t\t\t\tkey: 'class',\n\t *\t\t\t\tvalue: 'styled-dark'\n\t *\t\t\t},\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'styled',\n\t *\t\t\t\tvalue: 'dark'\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tkey: 'class',\n\t *\t\t\t\tvalue: /styled-[\\S]+/\n\t *\t\t\t},\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'styled'\n\t *\t\t\t\tvalue: ( viewElement, conversionApi ) => {\n\t *\t\t\t\t\tconst regexp = /styled-([\\S]+)/;\n\t *\t\t\t\t\tconst match = viewElement.getAttribute( 'class' ).match( regexp );\n\t *\n\t *\t\t\t\t\treturn match[ 1 ];\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * Converting styles works a bit differently as it requires `view.styles` to be an object and by default\n\t * a model attribute will be set to `true` by such a converter. You can set the model attribute to any value by providing the `value`\n\t * callback that returns the desired value.\n\t *\n\t *\t\t// Default conversion of font-weight style will result in setting bold attribute to true.\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tstyles: {\n\t *\t\t\t\t\t'font-weight': 'bold'\n\t *\t\t\t\t}\n\t *\t\t\t},\n\t *\t\t\tmodel: 'bold'\n\t *\t\t} );\n\t *\n\t *\t\t// This converter will pass any style value to the `lineHeight` model attribute.\n\t *\t\teditor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t *\t\t\tview: {\n\t *\t\t\t\tstyles: {\n\t *\t\t\t\t\t'line-height': /[\\s\\S]+/\n\t *\t\t\t\t}\n\t *\t\t\t},\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'lineHeight',\n\t *\t\t\t\tvalue: ( viewElement, conversionApi ) => viewElement.getStyle( 'line-height' )\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #attributeToAttribute\n\t * @param {Object} config Conversion configuration.\n\t * @param {String|Object} config.view Specifies which view attribute will be converted. If a `String` is passed,\n\t * attributes with given key will be converted. If an `Object` is passed, it must have a required `key` property,\n\t * specifying view attribute key, and may have an optional `value` property, specifying view attribute value and optional `name`\n\t * property specifying a view element name from/on which the attribute should be converted. `value` can be given as a `String`,\n\t * a `RegExp` or a function callback, that takes view attribute value as the only parameter and returns `Boolean`.\n\t * @param {String|Object} config.model Model attribute key or an object with `key` and `value` properties, describing\n\t * the model attribute. `value` property may be set as a function that takes a view element and\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API} and returns the value.\n\t * If `String` is given, the model attribute value will be same as view attribute value.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='low'] Converter priority.\n\t * @returns {module:engine/conversion/upcasthelpers~UpcastHelpers}\n\t */\n\tpublic attributeToAttribute( config: {\n\t\tview: string | {\n\t\t\tkey: string;\n\t\t\tvalue?: string | RegExp | ( ( value: unknown ) => boolean );\n\t\t\tname?: string;\n\t\t} | {\n\t\t\tname?: string;\n\t\t\tstyles?: PropertyPatterns;\n\t\t\tclasses?: ClassPatterns;\n\t\t\tattributes?: PropertyPatterns;\n\t\t};\n\t\tmodel: string | {\n\t\t\tkey: string;\n\t\t\tvalue: unknown | ( ( viewElement: ViewElement, conversionApi: UpcastConversionApi ) => unknown );\n\t\t};\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastAttributeToAttribute( config ) );\n\t}\n\n\t/**\n\t * View element to model marker conversion helper.\n\t *\n\t * This conversion results in creating a model marker. For example, if the marker was stored in a view as an element:\n\t * `<p>Fo<span data-marker=\"comment\" data-comment-id=\"7\"></span>o</p><p>B<span data-marker=\"comment\" data-comment-id=\"7\"></span>ar</p>`,\n\t * after the conversion is done, the marker will be available in\n\t * {@link module:engine/model/model~Model#markers model document markers}.\n\t *\n\t * **Note**: When this helper is used in the data upcast in combination with\n\t * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToData `#markerToData()`} in the data downcast,\n\t * then invalid HTML code (e.g. a span between table cells) may be produced by the latter converter.\n\t *\n\t * In most of the cases, the {@link #dataToMarker} should be used instead.\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToMarker( {\n\t *\t\t\tview: 'marker-search',\n\t *\t\t\tmodel: 'search'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToMarker( {\n\t *\t\t\tview: 'marker-search',\n\t *\t\t\tmodel: 'search',\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToMarker( {\n\t *\t\t\tview: 'marker-search',\n\t *\t\t\tmodel: ( viewElement, conversionApi ) => 'comment:' + viewElement.getAttribute( 'data-comment-id' )\n\t *\t\t} );\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).elementToMarker( {\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'span',\n\t *\t\t\t\tattributes: {\n\t *\t\t\t\t\t'data-marker': 'search'\n\t *\t\t\t\t}\n\t *\t\t\t},\n\t *\t\t\tmodel: 'search'\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #elementToMarker\n\t * @param {Object} config Conversion configuration.\n\t * @param {module:engine/view/matcher~MatcherPattern} config.view Pattern matching all view elements which should be converted.\n\t * @param {String|Function} config.model Name of the model marker, or a function that takes a view element and returns\n\t * a model marker name.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/upcasthelpers~UpcastHelpers}\n\t */\n\tpublic elementToMarker( config: {\n\t\tview: MatcherPattern;\n\t\tmodel: string | MarkerFromElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastElementToMarker( config ) );\n\t}\n\n\t/**\n\t * View-to-model marker conversion helper.\n\t *\n\t * Converts view data created by {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToData `#markerToData()`}\n\t * back to a model marker.\n\t *\n\t * This converter looks for specific view elements and view attributes that mark marker boundaries. See\n\t * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToData `#markerToData()`} to learn what view data\n\t * is expected by this converter.\n\t *\n\t * The `config.view` property is equal to the marker group name to convert.\n\t *\n\t * By default, this converter creates markers with the `group:name` name convention (to match the default `markerToData` conversion).\n\t *\n\t * The conversion configuration can take a function that will generate a marker name.\n\t * If such function is set as the `config.model` parameter, it is passed the `name` part from the view element or attribute and it is\n\t * expected to return a string with the marker name.\n\t *\n\t * Basic usage:\n\t *\n\t *\t\t// Using the default conversion.\n\t *\t\t// In this case, all markers from the `comment` group will be converted.\n\t *\t\t// The conversion will look for `<comment-start>` and `<comment-end>` tags and\n\t *\t\t// `data-comment-start-before`, `data-comment-start-after`,\n\t *\t\t// `data-comment-end-before` and `data-comment-end-after` attributes.\n\t *\t\teditor.conversion.for( 'upcast' ).dataToMarker( {\n\t *\t\t\tview: 'comment'\n\t *\t\t} );\n\t *\n\t * An example of a model that may be generated by this conversion:\n\t *\n\t *\t\t// View:\n\t *\t\t<p>Foo<comment-start name=\"commentId:uid\"></comment-start>bar</p>\n\t *\t\t<figure data-comment-end-after=\"commentId:uid\" class=\"image\"><img src=\"abc.jpg\" /></figure>\n\t *\n\t *\t\t// Model:\n\t *\t\t<paragraph>Foo[bar</paragraph>\n\t *\t\t<imageBlock src=\"abc.jpg\"></imageBlock>]\n\t *\n\t * Where `[]` are boundaries of a marker that will receive the `comment:commentId:uid` name.\n\t *\n\t * Other examples of usage:\n\t *\n\t *\t\t// Using a custom function which is the same as the default conversion:\n\t *\t\teditor.conversion.for( 'upcast' ).dataToMarker( {\n\t *\t\t\tview: 'comment',\n\t *\t\t\tmodel: ( name, conversionApi ) => 'comment:' + name,\n\t *\t\t} );\n\t *\n\t *\t\t// Using the converter priority:\n\t *\t\teditor.conversion.for( 'upcast' ).dataToMarker( {\n\t *\t\t\tview: 'comment',\n\t *\t\t\tmodel: ( name, conversionApi ) => 'comment:' + name,\n\t *\t\t\tconverterPriority: 'high'\n\t *\t\t} );\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @method #dataToMarker\n\t * @param {Object} config Conversion configuration.\n\t * @param {String} config.view The marker group name to convert.\n\t * @param {Function} [config.model] A function that takes the `name` part from the view element or attribute and\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API} and returns the marker name.\n\t * @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n\t * @returns {module:engine/conversion/upcasthelpers~UpcastHelpers}\n\t */\n\tpublic dataToMarker( config: {\n\t\tview: string;\n\t\tmodel?: MarkerFromAttributeCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastDataToMarker( config ) );\n\t}\n}\n\n/**\n * Function factory, creates a converter that converts {@link module:engine/view/documentfragment~DocumentFragment view document fragment}\n * or all children of {@link module:engine/view/element~Element} into\n * {@link module:engine/model/documentfragment~DocumentFragment model document fragment}.\n * This is the \"entry-point\" converter for upcast (view to model conversion). This converter starts the conversion of all children\n * of passed view document fragment. Those children {@link module:engine/view/node~Node view nodes} are then handled by other converters.\n *\n * This also a \"default\", last resort converter for all view elements that has not been converted by other converters.\n * When a view element is being converted to the model but it does not have converter specified, that view element\n * will be converted to {@link module:engine/model/documentfragment~DocumentFragment model document fragment} and returned.\n *\n * @returns {Function} Universal converter for view {@link module:engine/view/documentfragment~DocumentFragment fragments} and\n * {@link module:engine/view/element~Element elements} that returns\n * {@link module:engine/model/documentfragment~DocumentFragment model fragment} with children of converted view item.\n */\nexport function convertToModelFragment() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement | ViewDocumentFragment>,\n\t\tconversionApi: UpcastConversionApi\n\t): void => {\n\t\t// Second argument in `consumable.consume` is discarded for ViewDocumentFragment but is needed for ViewElement.\n\t\tif ( !data.modelRange && conversionApi.consumable.consume( data.viewItem, { name: true } ) ) {\n\t\t\tconst { modelRange, modelCursor } = conversionApi.convertChildren( data.viewItem, data.modelCursor );\n\n\t\t\tdata.modelRange = modelRange;\n\t\t\tdata.modelCursor = modelCursor;\n\t\t}\n\t};\n}\n\n/**\n * Function factory, creates a converter that converts {@link module:engine/view/text~Text} to {@link module:engine/model/text~Text}.\n *\n * @returns {Function} {@link module:engine/view/text~Text View text} converter.\n */\nexport function convertText() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewText>,\n\t\t{ schema, consumable, writer }: UpcastConversionApi\n\t): void => {\n\t\tlet position = data.modelCursor;\n\n\t\t// When node is already converted then do nothing.\n\t\tif ( !consumable.test( data.viewItem ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !schema.checkChild( position, '$text' ) ) {\n\t\t\tif ( !isParagraphable( position, '$text', schema ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Do not auto-paragraph whitespaces.\n\t\t\tif ( data.viewItem.data.trim().length == 0 ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tposition = wrapInParagraph( position, writer );\n\t\t}\n\n\t\tconsumable.consume( data.viewItem );\n\n\t\tconst text = writer.createText( data.viewItem.data );\n\n\t\twriter.insert( text, position );\n\n\t\tdata.modelRange = writer.createRange(\n\t\t\tposition,\n\t\t\tposition.getShiftedBy( text.offsetSize )\n\t\t);\n\t\tdata.modelCursor = data.modelRange.end;\n\t};\n}\n\n/**\n * Function factory, creates a callback function which converts a {@link module:engine/view/selection~Selection\n * view selection} taken from the {@link module:engine/view/document~Document#event:selectionChange} event\n * and sets in on the {@link module:engine/model/document~Document#selection model}.\n *\n * **Note**: because there is no view selection change dispatcher nor any other advanced view selection to model\n * conversion mechanism, the callback should be set directly on view document.\n *\n *\t\tview.document.on( 'selectionChange', convertSelectionChange( modelDocument, mapper ) );\n *\n * @param {module:engine/model/model~Model} model Data model.\n * @param {module:engine/conversion/mapper~Mapper} mapper Conversion mapper.\n * @returns {Function} {@link module:engine/view/document~Document#event:selectionChange} callback function.\n */\nexport function convertSelectionChange( model: Model, mapper: Mapper ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { newSelection: ViewSelection | ViewDocumentSelection }\n\t): void => {\n\t\tconst viewSelection = data.newSelection;\n\n\t\tconst ranges: Array<ModelRange> = [];\n\n\t\tfor ( const viewRange of viewSelection.getRanges() ) {\n\t\t\tranges.push( mapper.toModelRange( viewRange ) );\n\t\t}\n\n\t\tconst modelSelection = model.createSelection( ranges, { backward: viewSelection.isBackward } );\n\n\t\tif ( !modelSelection.isEqual( model.document.selection ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( modelSelection );\n\t\t\t} );\n\t\t}\n\t};\n}\n\n// View element to model element conversion helper.\n//\n// See {@link ~UpcastHelpers#elementToElement `.elementToElement()` upcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {module:engine/view/matcher~MatcherPattern} [config.view] Pattern matching all view elements which should be converted. If not\n// set, the converter will fire for every view element.\n// @param {String|module:engine/model/element~Element|Function} config.model Name of the model element, a model element\n// instance or a function that takes a view element and returns a model element. The model element will be inserted in the model.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction upcastElementToElement( config: {\n\tview: MatcherPattern;\n\tmodel: string | ElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tconst converter = prepareToElementConverter( config );\n\n\tconst elementName = getViewElementNameFromConfig( config.view );\n\tconst eventName = elementName ? `element:${ elementName }` as const : 'element';\n\n\treturn ( dispatcher: UpcastDispatcher ) => {\n\t\tdispatcher.on<UpcastElementEvent>( eventName, converter, { priority: config.converterPriority || 'normal' } );\n\t};\n}\n\n// View element to model attribute conversion helper.\n//\n// See {@link ~UpcastHelpers#elementToAttribute `.elementToAttribute()` upcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {module:engine/view/matcher~MatcherPattern} config.view Pattern matching all view elements which should be converted.\n// @param {String|Object} config.model Model attribute key or an object with `key` and `value` properties, describing\n// the model attribute. `value` property may be set as a function that takes a view element and returns the value.\n// If `String` is given, the model attribute value will be set to `true`.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='low'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction upcastElementToAttribute( config: {\n\tview: MatcherPattern;\n\tmodel: string | {\n\t\tkey: string;\n\t\tvalue: unknown | AttributeCreatorFunction;\n\t};\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tnormalizeModelAttributeConfig( config );\n\n\tconst converter = prepareToAttributeConverter( config as any, false );\n\n\tconst elementName = getViewElementNameFromConfig( config.view );\n\tconst eventName = elementName ? `element:${ elementName }` as const : 'element';\n\n\treturn ( dispatcher: UpcastDispatcher ) => {\n\t\tdispatcher.on<UpcastElementEvent>( eventName, converter, { priority: config.converterPriority || 'low' } );\n\t};\n}\n\n// View attribute to model attribute conversion helper.\n//\n// See {@link ~UpcastHelpers#attributeToAttribute `.attributeToAttribute()` upcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {String|Object} config.view Specifies which view attribute will be converted. If a `String` is passed,\n// attributes with given key will be converted. If an `Object` is passed, it must have a required `key` property,\n// specifying view attribute key, and may have an optional `value` property, specifying view attribute value and optional `name`\n// property specifying a view element name from/on which the attribute should be converted. `value` can be given as a `String`,\n// a `RegExp` or a function callback, that takes view attribute value as the only parameter and returns `Boolean`.\n// @param {String|Object} config.model Model attribute key or an object with `key` and `value` properties, describing\n// the model attribute. `value` property may be set as a function that takes a view element and returns the value.\n// If `String` is given, the model attribute value will be same as view attribute value.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='low'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction upcastAttributeToAttribute( config: {\n\tview: string | {\n\t\tkey?: string;\n\t\tvalue?: string | RegExp | ( ( value: unknown ) => boolean );\n\t\tname?: string;\n\t\tstyles?: PropertyPatterns;\n\t\tclasses?: ClassPatterns;\n\t\tattributes?: PropertyPatterns;\n\t};\n\tmodel: string | {\n\t\tkey: string;\n\t\tvalue: unknown | ( ( viewElement: ViewElement, conversionApi: UpcastConversionApi ) => unknown );\n\t};\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tlet viewKey: string | null = null;\n\n\tif ( typeof config.view == 'string' || config.view.key ) {\n\t\tviewKey = normalizeViewAttributeKeyValueConfig( config );\n\t}\n\n\tnormalizeModelAttributeConfig( config, viewKey );\n\n\tconst converter = prepareToAttributeConverter( config as any, true );\n\n\treturn ( dispatcher: UpcastDispatcher ) => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element', converter, { priority: config.converterPriority || 'low' } );\n\t};\n}\n\n// View element to model marker conversion helper.\n//\n// See {@link ~UpcastHelpers#elementToMarker `.elementToMarker()` upcast helper} for examples.\n//\n// @param {Object} config Conversion configuration.\n// @param {module:engine/view/matcher~MatcherPattern} config.view Pattern matching all view elements which should be converted.\n// @param {String|Function} config.model Name of the model marker, or a function that takes a view element and returns\n// a model marker name.\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal'] Converter priority.\n// @returns {Function} Conversion helper.\nfunction upcastElementToMarker( config: {\n\tview: MatcherPattern;\n\tmodel: string | MarkerFromElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconst model = normalizeElementToMarkerModelConfig( config.model );\n\n\treturn upcastElementToElement( { ...config, model } );\n}\n\n// View data to model marker conversion helper.\n//\n// See {@link ~UpcastHelpers#dataToMarker} to learn more.\n//\n// @param {Object} config\n// @param {String} config.view\n// @param {Function} [config.model]\n// @param {module:utils/priorities~PriorityString} [config.converterPriority='normal']\n// @returns {Function} Conversion helper.\nfunction upcastDataToMarker( config: {\n\tview: string;\n\tmodel?: MarkerFromAttributeCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\t// Default conversion.\n\tif ( !config.model ) {\n\t\tconfig.model = name => {\n\t\t\treturn name ? config.view + ':' + name : config.view;\n\t\t};\n\t}\n\n\tconst normalizedConfig = {\n\t\tview: config.view,\n\t\tmodel: config.model!\n\t};\n\n\tconst converterStart = prepareToElementConverter( normalizeDataToMarkerConfig( normalizedConfig, 'start' ) );\n\tconst converterEnd = prepareToElementConverter( normalizeDataToMarkerConfig( normalizedConfig, 'end' ) );\n\n\treturn ( dispatcher: UpcastDispatcher ): void => {\n\t\tdispatcher.on<UpcastElementEvent>(\n\t\t\t`element:${ config.view }-start`,\n\t\t\tconverterStart,\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<UpcastElementEvent>(\n\t\t\t`element:${ config.view }-end`,\n\t\t\tconverterEnd,\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\n\t\t// Below is a hack that is needed to properly handle `converterPriority` for both elements and attributes.\n\t\t// Attribute conversion needs to be performed *after* element conversion.\n\t\t// This converter handles both element conversion and attribute conversion, which means that if a single\n\t\t// `config.converterPriority` is used, it will lead to problems. For example, if the `'high'` priority is used,\n\t\t// the attribute conversion will be performed before a lot of element upcast converters.\n\t\t// On the other hand, we want to support `config.converterPriority` and converter overwriting.\n\t\t//\n\t\t// To make it work, we need to do some extra processing for priority for attribute converter.\n\t\t// Priority `'low'` value should be the base value and then we will change it depending on `config.converterPriority` value.\n\t\t//\n\t\t// This hack probably would not be needed if attributes are upcasted separately.\n\t\t//\n\t\tconst basePriority = priorities.get( 'low' );\n\t\tconst maxPriority = priorities.get( 'highest' );\n\t\tconst priorityFactor = priorities.get( config.converterPriority ) / maxPriority; // Number in range [ -1, 1 ].\n\n\t\tdispatcher.on<UpcastElementEvent>(\n\t\t\t'element',\n\t\t\tupcastAttributeToMarker( normalizedConfig ),\n\t\t\t{ priority: basePriority + priorityFactor }\n\t\t);\n\t};\n}\n\n// Function factory, returns a callback function which converts view attributes to a model marker.\n//\n// The converter looks for elements with `data-group-start-before`, `data-group-start-after`, `data-group-end-before`\n// and `data-group-end-after` attributes and inserts `$marker` model elements before/after those elements.\n// `group` part is specified in `config.view`.\n//\n// @param {Object} config\n// @param {String} config.view\n// @param {Function} [config.model]\n// @returns {Function} Marker converter.\nfunction upcastAttributeToMarker( config: {\n\tview: string;\n\tmodel: MarkerFromAttributeCreatorFunction;\n} ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement>,\n\t\tconversionApi: UpcastConversionApi\n\t) => {\n\t\tconst attrName = `data-${ config.view }`;\n\n\t\t// Check if any attribute for the given view item can be consumed before changing the conversion data\n\t\t// and consuming view items with these attributes.\n\t\tif (\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-end-after' } ) &&\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-start-after' } ) &&\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-end-before' } ) &&\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-start-before' } )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\t// This converter wants to add a model element, marking a marker, before/after an element (or maybe even group of elements).\n\t\t// To do that, we can use `data.modelRange` which is set on an element (or a group of elements) that has been upcasted.\n\t\t// But, if the processed view element has not been upcasted yet (it does not have been converted), we need to\n\t\t// fire conversion for its children first, then we will have `data.modelRange` available.\n\t\tif ( !data.modelRange ) {\n\t\t\tObject.assign( data, conversionApi.convertChildren( data.viewItem, data.modelCursor ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-end-after' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.end, data.viewItem.getAttribute( attrName + '-end-after' )!.split( ',' ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-start-after' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.end, data.viewItem.getAttribute( attrName + '-start-after' )!.split( ',' ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-end-before' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.start, data.viewItem.getAttribute( attrName + '-end-before' )!.split( ',' ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-start-before' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.start, data.viewItem.getAttribute( attrName + '-start-before' )!.split( ',' ) );\n\t\t}\n\n\t\tfunction addMarkerElements( position: ModelPosition, markerViewNames: Array<string> ): void {\n\t\t\tfor ( const markerViewName of markerViewNames ) {\n\t\t\t\tconst markerName = config.model( markerViewName, conversionApi );\n\t\t\t\tconst element = conversionApi.writer.createElement( '$marker', { 'data-name': markerName } );\n\n\t\t\t\tconversionApi.writer.insert( element, position );\n\n\t\t\t\tif ( data.modelCursor.isEqual( position ) ) {\n\t\t\t\t\tdata.modelCursor = data.modelCursor.getShiftedBy( 1 );\n\t\t\t\t} else {\n\t\t\t\t\tdata.modelCursor = data.modelCursor._getTransformedByInsertion( position, 1 );\n\t\t\t\t}\n\n\t\t\t\tdata.modelRange = data.modelRange!._getTransformedByInsertion( position, 1 )[ 0 ];\n\t\t\t}\n\t\t}\n\t};\n}\n\n// Helper function for from-view-element conversion. Checks if `config.view` directly specifies converted view element's name\n// and if so, returns it.\n//\n// @param {Object} config Conversion view config.\n// @returns {String|null} View element name or `null` if name is not directly set.\nfunction getViewElementNameFromConfig( viewConfig: any ): string | null {\n\tif ( typeof viewConfig == 'string' ) {\n\t\treturn viewConfig;\n\t}\n\n\tif ( typeof viewConfig == 'object' && typeof viewConfig.name == 'string' ) {\n\t\treturn viewConfig.name;\n\t}\n\n\treturn null;\n}\n\n// Helper for to-model-element conversion. Takes a config object and returns a proper converter function.\n//\n// @param {Object} config Conversion configuration.\n// @returns {Function} View to model converter.\nfunction prepareToElementConverter( config: {\n\tview: MatcherPattern;\n\tmodel: string | ElementCreatorFunction;\n} ) {\n\tconst matcher = new Matcher( config.view );\n\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement>,\n\t\tconversionApi: UpcastConversionApi\n\t): void => {\n\t\tconst matcherResult = matcher.match( data.viewItem );\n\n\t\tif ( !matcherResult ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst match = matcherResult.match;\n\n\t\t// Force consuming element's name.\n\t\tmatch.name = true;\n\n\t\tif ( !conversionApi.consumable.test( data.viewItem, match ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelElement = getModelElement( config.model, data.viewItem, conversionApi );\n\n\t\tif ( !modelElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.safeInsert( modelElement, data.modelCursor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconversionApi.consumable.consume( data.viewItem, match );\n\t\tconversionApi.convertChildren( data.viewItem, modelElement );\n\t\tconversionApi.updateConversionResult( modelElement, data );\n\t};\n}\n\n// Helper function for upcasting-to-element converter. Takes the model configuration, the converted view element\n// and a writer instance and returns a model element instance to be inserted in the model.\n//\n// @param {String|Function|module:engine/model/element~Element} model Model conversion configuration.\n// @param {module:engine/view/node~Node} input The converted view node.\n// @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi The upcast conversion API.\nfunction getModelElement(\n\tmodel: string | ElementCreatorFunction,\n\tinput: ViewElement,\n\tconversionApi: UpcastConversionApi\n): ModelElement | null {\n\tif ( model instanceof Function ) {\n\t\treturn model( input, conversionApi );\n\t} else {\n\t\treturn conversionApi.writer.createElement( model );\n\t}\n}\n\n// Helper function view-attribute-to-model-attribute helper. Normalizes `config.view` which was set as `String` or\n// as an `Object` with `key`, `value` and `name` properties. Normalized `config.view` has is compatible with\n// {@link module:engine/view/matcher~MatcherPattern}.\n//\n// @param {Object} config Conversion config.\n// @returns {String} Key of the converted view attribute.\nfunction normalizeViewAttributeKeyValueConfig( config: any ) {\n\tif ( typeof config.view == 'string' ) {\n\t\tconfig.view = { key: config.view };\n\t}\n\n\tconst key: string = config.view.key;\n\tlet normalized: MatcherPattern;\n\n\tif ( key == 'class' || key == 'style' ) {\n\t\tconst keyName = key == 'class' ? 'classes' : 'styles';\n\n\t\tnormalized = {\n\t\t\t[ keyName ]: config.view.value\n\t\t};\n\t} else {\n\t\tconst value = typeof config.view.value == 'undefined' ? /[\\s\\S]*/ : config.view.value;\n\n\t\tnormalized = {\n\t\t\tattributes: {\n\t\t\t\t[ key ]: value\n\t\t\t}\n\t\t};\n\t}\n\n\tif ( config.view.name ) {\n\t\tnormalized.name = config.view.name;\n\t}\n\n\tconfig.view = normalized;\n\n\treturn key;\n}\n\n// Helper function that normalizes `config.model` in from-model-attribute conversion. `config.model` can be set\n// as a `String`, an `Object` with only `key` property or an `Object` with `key` and `value` properties. Normalized\n// `config.model` is an `Object` with `key` and `value` properties.\n//\n// @param {Object} config Conversion config.\n// @param {String} viewAttributeKeyToCopy Key of the converted view attribute. If it is set, model attribute value\n// will be equal to view attribute value.\nfunction normalizeModelAttributeConfig( config: any, viewAttributeKeyToCopy: string | null = null ) {\n\tconst defaultModelValue = viewAttributeKeyToCopy === null ? true :\n\t\t( viewElement: ViewElement ) => viewElement.getAttribute( viewAttributeKeyToCopy );\n\n\tconst key = typeof config.model != 'object' ? config.model : config.model.key;\n\tconst value = typeof config.model != 'object' || typeof config.model.value == 'undefined' ? defaultModelValue : config.model.value;\n\n\tconfig.model = { key, value };\n}\n\n// Helper for to-model-attribute conversion. Takes the model attribute name and conversion configuration and returns\n// a proper converter function.\n//\n// @param {String} modelAttributeKey The key of the model attribute to set on a model node.\n// @param {Object|Array.<Object>} config Conversion configuration. It is possible to provide multiple configurations in an array.\n// @param {Boolean} shallow If set to `true` the attribute will be set only on top-level nodes. Otherwise, it will be set\n// on all elements in the range.\nfunction prepareToAttributeConverter(\n\tconfig: {\n\t\tview: MatcherPattern;\n\t\tmodel: {\n\t\t\tkey: string;\n\t\t\tvalue: AttributeCreatorFunction | unknown;\n\t\t};\n\t},\n\tshallow: boolean\n) {\n\tconst matcher = new Matcher( config.view );\n\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement>,\n\t\tconversionApi: UpcastConversionApi\n\t): void => {\n\t\t// Converting an attribute of an element that has not been converted to anything does not make sense\n\t\t// because there will be nowhere to set that attribute on. At this stage, the element should've already\n\t\t// been converted (https://github.com/ckeditor/ckeditor5/issues/11000).\n\t\tif ( !data.modelRange && shallow ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst match = matcher.match( data.viewItem );\n\n\t\t// If there is no match, this callback should not do anything.\n\t\tif ( !match ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( onlyViewNameIsDefined( config.view, data.viewItem ) ) {\n\t\t\tmatch.match.name = true;\n\t\t} else {\n\t\t\t// Do not test `name` consumable because it could get consumed already while upcasting some other attribute\n\t\t\t// on the same element (for example <span class=\"big\" style=\"color: red\">foo</span>).\n\t\t\tdelete match.match.name;\n\t\t}\n\n\t\t// Try to consume appropriate values from consumable values list.\n\t\tif ( !conversionApi.consumable.test( data.viewItem, match.match ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelKey = config.model.key;\n\t\tconst modelValue: unknown = typeof config.model.value == 'function' ?\n\t\t\tconfig.model.value( data.viewItem, conversionApi ) : config.model.value;\n\n\t\t// Do not convert if attribute building function returned falsy value.\n\t\tif ( modelValue === null ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Since we are converting to attribute we need a range on which we will set the attribute.\n\t\t// If the range is not created yet, let's create it by converting children of the current node first.\n\t\tif ( !data.modelRange ) {\n\t\t\t// Convert children and set conversion result as a current data.\n\t\t\tObject.assign( data, conversionApi.convertChildren( data.viewItem, data.modelCursor ) );\n\t\t}\n\n\t\t// Set attribute on current `output`. `Schema` is checked inside this helper function.\n\t\tconst attributeWasSet = setAttributeOn( data.modelRange!, { key: modelKey, value: modelValue }, shallow, conversionApi );\n\n\t\t// It may happen that a converter will try to set an attribute that is not allowed in the given context.\n\t\t// In such a situation we cannot consume the attribute. See: https://github.com/ckeditor/ckeditor5/pull/9249#issuecomment-815658459.\n\t\tif ( attributeWasSet ) {\n\t\t\t// Verify if the element itself wasn't consumed yet. It could be consumed already while upcasting some other attribute\n\t\t\t// on the same element (for example <span class=\"big\" style=\"color: red\">foo</span>).\n\t\t\t// We need to consume it so other features (especially GHS) won't try to convert it.\n\t\t\t// Note that it's not tested by the other element-to-attribute converters whether an element was consumed before\n\t\t\t// (in case of converters that the element itself is just a context and not the primary information to convert).\n\t\t\tif ( conversionApi.consumable.test( data.viewItem, { name: true } ) ) {\n\t\t\t\tmatch.match.name = true;\n\t\t\t}\n\n\t\t\tconversionApi.consumable.consume( data.viewItem, match.match );\n\t\t}\n\t};\n}\n\n// Helper function that checks if element name should be consumed in attribute converters.\n//\n// @param {Object} config Conversion view config.\n// @returns {Boolean}\nfunction onlyViewNameIsDefined( viewConfig: any, viewItem: ViewElement ): boolean {\n\t// https://github.com/ckeditor/ckeditor5-engine/issues/1786\n\tconst configToTest = typeof viewConfig == 'function' ? viewConfig( viewItem ) : viewConfig;\n\n\tif ( typeof configToTest == 'object' && !getViewElementNameFromConfig( configToTest ) ) {\n\t\treturn false;\n\t}\n\n\treturn !configToTest.classes && !configToTest.attributes && !configToTest.styles;\n}\n\n// Helper function for to-model-attribute converter. Sets model attribute on given range. Checks {@link module:engine/model/schema~Schema}\n// to ensure proper model structure.\n//\n// If any node on the given range has already defined an attribute with the same name, its value will not be updated.\n//\n// @param {module:engine/model/range~Range} modelRange Model range on which attribute should be set.\n// @param {Object} modelAttribute Model attribute to set.\n// @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion API.\n// @param {Boolean} shallow If set to `true` the attribute will be set only on top-level nodes. Otherwise, it will be set\n// on all elements in the range.\n// @returns {Boolean} `true` if attribute was set on at least one node from given `modelRange`.\nfunction setAttributeOn(\n\tmodelRange: ModelRange,\n\tmodelAttribute: {\n\t\tkey: string;\n\t\tvalue: unknown;\n\t},\n\tshallow: boolean,\n\tconversionApi: UpcastConversionApi\n): boolean {\n\tlet result = false;\n\n\t// Set attribute on each item in range according to Schema.\n\tfor ( const node of Array.from( modelRange.getItems( { shallow } ) ) ) {\n\t\t// Skip if not allowed.\n\t\tif ( !conversionApi.schema.checkAttribute( node, modelAttribute.key ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Mark the node as consumed even if the attribute will not be updated because it's in a valid context (schema)\n\t\t// and would be converted if the attribute wouldn't be present. See #8921.\n\t\tresult = true;\n\n\t\t// Do not override the attribute if it's already present.\n\t\tif ( node.hasAttribute( modelAttribute.key ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconversionApi.writer.setAttribute( modelAttribute.key, modelAttribute.value, node );\n\t}\n\n\treturn result;\n}\n\n// Helper function for upcasting-to-marker conversion. Takes the config in a format requested by `upcastElementToMarker()`\n// function and converts it to a format that is supported by `upcastElementToElement()` function.\n//\n// @param {Object} config Conversion configuration.\nfunction normalizeElementToMarkerModelConfig( model: string | MarkerFromElementCreatorFunction ): ElementCreatorFunction {\n\treturn ( viewElement, conversionApi ) => {\n\t\tconst markerName = typeof model == 'string' ? model : model( viewElement, conversionApi );\n\n\t\treturn conversionApi.writer.createElement( '$marker', { 'data-name': markerName } );\n\t};\n}\n\n// Helper function for upcasting-to-marker conversion. Takes the config in a format requested by `upcastDataToMarker()`\n// function and converts it to a format that is supported by `upcastElementToElement()` function.\n//\n// @param {Object} config Conversion configuration.\nfunction normalizeDataToMarkerConfig(\n\tconfig: {\n\t\tview: string;\n\t\tmodel: MarkerFromAttributeCreatorFunction;\n\t},\n\ttype: string\n) {\n\tconst elementCreatorFunction: ElementCreatorFunction = ( viewElement, conversionApi ) => {\n\t\tconst viewName = viewElement.getAttribute( 'name' )!;\n\t\tconst markerName = config.model( viewName, conversionApi );\n\n\t\treturn conversionApi.writer.createElement( '$marker', { 'data-name': markerName } );\n\t};\n\n\treturn {\n\t\t// Upcast <markerGroup-start> and <markerGroup-end> elements.\n\t\tview: `${ config.view }-${ type }`,\n\t\tmodel: elementCreatorFunction\n\t};\n}\n\nexport type ElementCreatorFunction = (\n\tviewElement: ViewElement,\n\tconversionApi: UpcastConversionApi\n) => ModelElement | null;\n\nexport type AttributeCreatorFunction = (\n\tmodelElement: ModelElement,\n\tconversionApi: UpcastConversionApi\n) => unknown;\n\nexport type MarkerFromElementCreatorFunction = (\n\tviewElement: ViewElement,\n\tconversionApi: UpcastConversionApi\n) => string;\n\nexport type MarkerFromAttributeCreatorFunction = (\n\tattributeValue: string,\n\tconversionApi: UpcastConversionApi\n) => string;\n\nexport type ModelAttributeDefinition<TValue = unknown> = {\n\tkey: string;\n\tvalue: TValue;\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/controller/editingcontroller\n */\n\nimport { CKEditorError, ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\nimport RootEditableElement from '../view/rooteditableelement';\nimport View from '../view/view';\nimport Mapper from '../conversion/mapper';\nimport DowncastDispatcher, {\n\ttype DowncastInsertEvent,\n\ttype DowncastRemoveEvent,\n\ttype DowncastSelectionEvent\n} from '../conversion/downcastdispatcher';\nimport {\n\tclearAttributes,\n\tconvertCollapsedSelection,\n\tconvertRangeSelection,\n\tinsertAttributesAndChildren,\n\tinsertText,\n\tremove\n} from '../conversion/downcasthelpers';\n\nimport { convertSelectionChange } from '../conversion/upcasthelpers';\n\nimport type Model from '../model/model';\nimport type ModelItem from '../model/item';\nimport type ModelText from '../model/text';\nimport type ModelTextProxy from '../model/textproxy';\nimport type { DocumentChangeEvent } from '../model/document';\nimport type { Marker } from '../model/markercollection';\nimport type { StylesProcessor } from '../view/stylesmap';\nimport type { ViewDocumentSelectionEvent } from '../view/observer/selectionobserver';\n\n// @if CK_DEBUG_ENGINE // const { dumpTrees, initDocumentDumping } = require( '../dev-utils/utils' );\n\n/**\n * A controller for the editing pipeline. The editing pipeline controls the {@link ~EditingController#model model} rendering,\n * including selection handling. It also creates the {@link ~EditingController#view view} which builds a\n * browser-independent virtualization over the DOM elements. The editing controller also attaches default converters.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class EditingController extends ObservableMixin() {\n\tpublic readonly model: Model;\n\tpublic readonly view: View;\n\tpublic readonly mapper: Mapper;\n\tpublic readonly downcastDispatcher: DowncastDispatcher;\n\n\t/**\n\t * Creates an editing controller instance.\n\t *\n\t * @param {module:engine/model/model~Model} model Editing model.\n\t * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor The styles processor instance.\n\t */\n\tconstructor( model: Model, stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Editor model.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/model~Model}\n\t\t */\n\t\tthis.model = model;\n\n\t\t/**\n\t\t * Editing view controller.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/view~View}\n\t\t */\n\t\tthis.view = new View( stylesProcessor );\n\n\t\t/**\n\t\t * A mapper that describes the model-view binding.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/conversion/mapper~Mapper}\n\t\t */\n\t\tthis.mapper = new Mapper();\n\n\t\t/**\n\t\t * Downcast dispatcher that converts changes from the model to the {@link #view editing view}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/conversion/downcastdispatcher~DowncastDispatcher} #downcastDispatcher\n\t\t */\n\t\tthis.downcastDispatcher = new DowncastDispatcher( {\n\t\t\tmapper: this.mapper,\n\t\t\tschema: model.schema\n\t\t} );\n\n\t\tconst doc = this.model.document;\n\t\tconst selection = doc.selection;\n\t\tconst markers = this.model.markers;\n\n\t\t// When plugins listen on model changes (on selection change, post fixers, etc.) and change the view as a result of\n\t\t// the model's change, they might trigger view rendering before the conversion is completed (e.g. before the selection\n\t\t// is converted). We disable rendering for the length of the outermost model change() block to prevent that.\n\t\t//\n\t\t// See https://github.com/ckeditor/ckeditor5-engine/issues/1528\n\t\tthis.listenTo( this.model, '_beforeChanges', () => {\n\t\t\tthis.view._disableRendering( true );\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.listenTo( this.model, '_afterChanges', () => {\n\t\t\tthis.view._disableRendering( false );\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Whenever model document is changed, convert those changes to the view (using model.Document#differ).\n\t\t// Do it on 'low' priority, so changes are converted after other listeners did their job.\n\t\t// Also convert model selection.\n\t\tthis.listenTo<DocumentChangeEvent>( doc, 'change', () => {\n\t\t\tthis.view.change( writer => {\n\t\t\t\tthis.downcastDispatcher.convertChanges( doc.differ, markers, writer );\n\t\t\t\tthis.downcastDispatcher.convertSelection( selection, markers, writer );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\n\t\t// Convert selection from the view to the model when it changes in the view.\n\t\tthis.listenTo<ViewDocumentSelectionEvent>( this.view.document, 'selectionChange',\n\t\t\tconvertSelectionChange( this.model, this.mapper )\n\t\t);\n\n\t\t// Attach default model converters.\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent<ModelText | ModelTextProxy>>( 'insert:$text', insertText(), { priority: 'lowest' } );\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent>( 'insert', insertAttributesAndChildren(), { priority: 'lowest' } );\n\t\tthis.downcastDispatcher.on<DowncastRemoveEvent>( 'remove', remove(), { priority: 'low' } );\n\n\t\t// Attach default model selection converters.\n\t\tthis.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', clearAttributes(), { priority: 'high' } );\n\t\tthis.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', convertRangeSelection(), { priority: 'low' } );\n\t\tthis.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', convertCollapsedSelection(), { priority: 'low' } );\n\n\t\t// Binds {@link module:engine/view/document~Document#roots view roots collection} to\n\t\t// {@link module:engine/model/document~Document#roots model roots collection} so creating\n\t\t// model root automatically creates corresponding view root.\n\t\tthis.view.document.roots.bindTo( this.model.document.roots ).using( root => {\n\t\t\t// $graveyard is a special root that has no reflection in the view.\n\t\t\tif ( root.rootName == '$graveyard' ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tconst viewRoot = new RootEditableElement( this.view.document, root.name );\n\n\t\t\tviewRoot.rootName = root.rootName;\n\t\t\tthis.mapper.bindElements( root, viewRoot );\n\n\t\t\treturn viewRoot;\n\t\t} );\n\n\t\t// @if CK_DEBUG_ENGINE // initDocumentDumping( this.model.document );\n\t\t// @if CK_DEBUG_ENGINE // initDocumentDumping( this.view.document );\n\n\t\t// @if CK_DEBUG_ENGINE // dumpTrees( this.model.document, this.model.document.version );\n\t\t// @if CK_DEBUG_ENGINE // dumpTrees( this.view.document, this.model.document.version );\n\n\t\t// @if CK_DEBUG_ENGINE // this.model.document.on( 'change', () => {\n\t\t// @if CK_DEBUG_ENGINE //\tdumpTrees( this.view.document, this.model.document.version );\n\t\t// @if CK_DEBUG_ENGINE // }, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Removes all event listeners attached to the `EditingController`. Destroys all objects created\n\t * by `EditingController` that need to be destroyed.\n\t */\n\tpublic destroy(): void {\n\t\tthis.view.destroy();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Calling this method will refresh the marker by triggering the downcast conversion for it.\n\t *\n\t * Reconverting the marker is useful when you want to change its {@link module:engine/view/element~Element view element}\n\t * without changing any marker data. For instance:\n\t *\n\t *\t\tlet isCommentActive = false;\n\t *\n\t *\t\tmodel.conversion.markerToHighlight( {\n\t *\t\t\tmodel: 'comment',\n\t *\t\t\tview: data => {\n\t *\t\t\t\tconst classes = [ 'comment-marker' ];\n\t *\n\t *\t\t\t\tif ( isCommentActive ) {\n\t *\t\t\t\t\tclasses.push( 'comment-marker--active' );\n\t *\t\t\t\t}\n\t *\n\t *\t\t\t\treturn { classes };\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\t// ...\n\t *\n\t *\t\t// Change the property that indicates if marker is displayed as active or not.\n\t *\t\tisCommentActive = true;\n\t *\n\t *\t\t// Reconverting will downcast and synchronize the marker with the new isCommentActive state value.\n\t *\t\teditor.editing.reconvertMarker( 'comment' );\n\t *\n\t * **Note**: If you want to reconvert a model item, use {@link #reconvertItem} instead.\n\t *\n\t * @param {String|module:engine/model/markercollection~Marker} markerOrName Name of a marker to update, or a marker instance.\n\t */\n\tpublic reconvertMarker( markerOrName: Marker | string ): void {\n\t\tconst markerName = typeof markerOrName == 'string' ? markerOrName : markerOrName.name;\n\t\tconst currentMarker = this.model.markers.get( markerName );\n\n\t\tif ( !currentMarker ) {\n\t\t\t/**\n\t\t\t * The marker with the provided name does not exist and cannot be reconverted.\n\t\t\t *\n\t\t\t * @error editingcontroller-reconvertmarker-marker-not-exist\n\t\t\t * @param {String} markerName The name of the reconverted marker.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'editingcontroller-reconvertmarker-marker-not-exist', this, { markerName } );\n\t\t}\n\n\t\tthis.model.change( () => {\n\t\t\tthis.model.markers._refresh( currentMarker );\n\t\t} );\n\t}\n\n\t/**\n\t * Calling this method will downcast a model item on demand (by requesting a refresh in the {@link module:engine/model/differ~Differ}).\n\t *\n\t * You can use it if you want the view representation of a specific item updated as a response to external modifications. For instance,\n\t * when the view structure depends not only on the associated model data but also on some external state.\n\t *\n\t * **Note**: If you want to reconvert a model marker, use {@link #reconvertMarker} instead.\n\t *\n\t * @param {module:engine/model/item~Item} item Item to refresh.\n\t */\n\tpublic reconvertItem( item: ModelItem ): void {\n\t\tthis.model.change( () => {\n\t\t\tthis.model.document.differ._refreshItem( item );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/viewconsumable\n */\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Element from '../view/element';\nimport type Node from '../view/node';\nimport type Text from '../view/text';\nimport type DocumentFragment from '../view/documentfragment';\nimport type { Match } from '../view/matcher';\n\nimport { isArray } from 'lodash-es';\n\n/**\n * Class used for handling consumption of view {@link module:engine/view/element~Element elements},\n * {@link module:engine/view/text~Text text nodes} and {@link module:engine/view/documentfragment~DocumentFragment document fragments}.\n * Element's name and its parts (attributes, classes and styles) can be consumed separately. Consuming an element's name\n * does not consume its attributes, classes and styles.\n * To add items for consumption use {@link module:engine/conversion/viewconsumable~ViewConsumable#add add method}.\n * To test items use {@link module:engine/conversion/viewconsumable~ViewConsumable#test test method}.\n * To consume items use {@link module:engine/conversion/viewconsumable~ViewConsumable#consume consume method}.\n * To revert already consumed items use {@link module:engine/conversion/viewconsumable~ViewConsumable#revert revert method}.\n *\n *\t\tviewConsumable.add( element, { name: true } ); // Adds element's name as ready to be consumed.\n *\t\tviewConsumable.add( textNode ); // Adds text node for consumption.\n *\t\tviewConsumable.add( docFragment ); // Adds document fragment for consumption.\n *\t\tviewConsumable.test( element, { name: true }  ); // Tests if element's name can be consumed.\n *\t\tviewConsumable.test( textNode ); // Tests if text node can be consumed.\n *\t\tviewConsumable.test( docFragment ); // Tests if document fragment can be consumed.\n *\t\tviewConsumable.consume( element, { name: true }  ); // Consume element's name.\n *\t\tviewConsumable.consume( textNode ); // Consume text node.\n *\t\tviewConsumable.consume( docFragment ); // Consume document fragment.\n *\t\tviewConsumable.revert( element, { name: true }  ); // Revert already consumed element's name.\n *\t\tviewConsumable.revert( textNode ); // Revert already consumed text node.\n *\t\tviewConsumable.revert( docFragment ); // Revert already consumed document fragment.\n */\nexport default class ViewConsumable {\n\tprivate _consumables: Map<Node | DocumentFragment, ViewElementConsumables | boolean>;\n\n\t/**\n\t * Creates new ViewConsumable.\n\t */\n\tconstructor() {\n\t\t/**\n\t\t * Map of consumable elements. If {@link module:engine/view/element~Element element} is used as a key,\n\t\t * {@link module:engine/conversion/viewconsumable~ViewElementConsumables ViewElementConsumables} instance is stored as value.\n\t\t * For {@link module:engine/view/text~Text text nodes} and\n\t\t * {@link module:engine/view/documentfragment~DocumentFragment document fragments} boolean value is stored as value.\n\t\t *\n\t\t * @protected\n\t\t * @member {Map.<module:engine/conversion/viewconsumable~ViewElementConsumables|Boolean>}\n\t\t*/\n\t\tthis._consumables = new Map();\n\t}\n\n\tpublic add(\n\t\telement: Text | DocumentFragment\n\t): void;\n\tpublic add(\n\t\telement: Element,\n\t\tconsumables: Consumables\n\t): void;\n\n\t/**\n\t * Adds {@link module:engine/view/element~Element view element}, {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment} as ready to be consumed.\n\t *\n\t *\t\tviewConsumable.add( p, { name: true } ); // Adds element's name to consume.\n\t *\t\tviewConsumable.add( p, { attributes: 'name' } ); // Adds element's attribute.\n\t *\t\tviewConsumable.add( p, { classes: 'foobar' } ); // Adds element's class.\n\t *\t\tviewConsumable.add( p, { styles: 'color' } ); // Adds element's style\n\t *\t\tviewConsumable.add( p, { attributes: 'name', styles: 'color' } ); // Adds attribute and style.\n\t *\t\tviewConsumable.add( p, { classes: [ 'baz', 'bar' ] } ); // Multiple consumables can be provided.\n\t *\t\tviewConsumable.add( textNode ); // Adds text node to consume.\n\t *\t\tviewConsumable.add( docFragment ); // Adds document fragment to consume.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `viewconsumable-invalid-attribute` when `class` or `style`\n\t * attribute is provided - it should be handled separately by providing actual style/class.\n\t *\n\t *\t\tviewConsumable.add( p, { attributes: 'style' } ); // This call will throw an exception.\n\t *\t\tviewConsumable.add( p, { styles: 'color' } ); // This is properly handled style.\n\t *\n\t * @param {module:engine/view/element~Element|module:engine/view/text~Text|module:engine/view/documentfragment~DocumentFragment} element\n\t * @param {Object} [consumables] Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param {Boolean} consumables.name If set to true element's name will be included.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names.\n\t */\n\tpublic add(\n\t\telement: Node | DocumentFragment,\n\t\tconsumables?: Consumables\n\t): void {\n\t\tlet elementConsumables: ViewElementConsumables;\n\n\t\t// For text nodes and document fragments just mark them as consumable.\n\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\tthis._consumables.set( element, true );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// For elements create new ViewElementConsumables or update already existing one.\n\t\tif ( !this._consumables.has( element ) ) {\n\t\t\telementConsumables = new ViewElementConsumables( element );\n\t\t\tthis._consumables.set( element, elementConsumables );\n\t\t} else {\n\t\t\telementConsumables = this._consumables.get( element ) as any;\n\t\t}\n\n\t\telementConsumables.add( consumables! );\n\t}\n\n\t/**\n\t * Tests if {@link module:engine/view/element~Element view element}, {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment} can be consumed.\n\t * It returns `true` when all items included in method's call can be consumed. Returns `false` when\n\t * first already consumed item is found and `null` when first non-consumable item is found.\n\t *\n\t *\t\tviewConsumable.test( p, { name: true } ); // Tests element's name.\n\t *\t\tviewConsumable.test( p, { attributes: 'name' } ); // Tests attribute.\n\t *\t\tviewConsumable.test( p, { classes: 'foobar' } ); // Tests class.\n\t *\t\tviewConsumable.test( p, { styles: 'color' } ); // Tests style.\n\t *\t\tviewConsumable.test( p, { attributes: 'name', styles: 'color' } ); // Tests attribute and style.\n\t *\t\tviewConsumable.test( p, { classes: [ 'baz', 'bar' ] } ); // Multiple consumables can be tested.\n\t *\t\tviewConsumable.test( textNode ); // Tests text node.\n\t *\t\tviewConsumable.test( docFragment ); // Tests document fragment.\n\t *\n\t * Testing classes and styles as attribute will test if all added classes/styles can be consumed.\n\t *\n\t *\t\tviewConsumable.test( p, { attributes: 'class' } ); // Tests if all added classes can be consumed.\n\t *\t\tviewConsumable.test( p, { attributes: 'style' } ); // Tests if all added styles can be consumed.\n\t *\n\t * @param {module:engine/view/element~Element|module:engine/view/text~Text|module:engine/view/documentfragment~DocumentFragment} element\n\t * @param {Object} [consumables] Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param {Boolean} consumables.name If set to true element's name will be included.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names.\n\t * @returns {Boolean|null} Returns `true` when all items included in method's call can be consumed. Returns `false`\n\t * when first already consumed item is found and `null` when first non-consumable item is found.\n\t */\n\tpublic test( element: Node | DocumentFragment, consumables?: Consumables | Match ): boolean | null {\n\t\tconst elementConsumables = this._consumables.get( element );\n\n\t\tif ( elementConsumables === undefined ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// For text nodes and document fragments return stored boolean value.\n\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\treturn elementConsumables as boolean;\n\t\t}\n\n\t\t// For elements test consumables object.\n\t\treturn ( elementConsumables as ViewElementConsumables ).test( consumables! );\n\t}\n\n\t/**\n\t * Consumes {@link module:engine/view/element~Element view element}, {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment}.\n\t * It returns `true` when all items included in method's call can be consumed, otherwise returns `false`.\n\t *\n\t *\t\tviewConsumable.consume( p, { name: true } ); // Consumes element's name.\n\t *\t\tviewConsumable.consume( p, { attributes: 'name' } ); // Consumes element's attribute.\n\t *\t\tviewConsumable.consume( p, { classes: 'foobar' } ); // Consumes element's class.\n\t *\t\tviewConsumable.consume( p, { styles: 'color' } ); // Consumes element's style.\n\t *\t\tviewConsumable.consume( p, { attributes: 'name', styles: 'color' } ); // Consumes attribute and style.\n\t *\t\tviewConsumable.consume( p, { classes: [ 'baz', 'bar' ] } ); // Multiple consumables can be consumed.\n\t *\t\tviewConsumable.consume( textNode ); // Consumes text node.\n\t *\t\tviewConsumable.consume( docFragment ); // Consumes document fragment.\n\t *\n\t * Consuming classes and styles as attribute will test if all added classes/styles can be consumed.\n\t *\n\t *\t\tviewConsumable.consume( p, { attributes: 'class' } ); // Consume only if all added classes can be consumed.\n\t *\t\tviewConsumable.consume( p, { attributes: 'style' } ); // Consume only if all added styles can be consumed.\n\t *\n\t * @param {module:engine/view/element~Element|module:engine/view/text~Text|module:engine/view/documentfragment~DocumentFragment} element\n\t * @param {Object} [consumables] Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param {Boolean} consumables.name If set to true element's name will be included.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names.\n\t * @returns {Boolean} Returns `true` when all items included in method's call can be consumed,\n\t * otherwise returns `false`.\n\t */\n\tpublic consume( element: Node | DocumentFragment, consumables?: Consumables | Match ): boolean {\n\t\tif ( this.test( element, consumables ) ) {\n\t\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\t\t// For text nodes and document fragments set value to false.\n\t\t\t\tthis._consumables.set( element, false );\n\t\t\t} else {\n\t\t\t\t// For elements - consume consumables object.\n\t\t\t\t( this._consumables.get( element ) as ViewElementConsumables ).consume( consumables! );\n\t\t\t}\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Reverts {@link module:engine/view/element~Element view element}, {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment} so they can be consumed once again.\n\t * Method does not revert items that were never previously added for consumption, even if they are included in\n\t * method's call.\n\t *\n\t *\t\tviewConsumable.revert( p, { name: true } ); // Reverts element's name.\n\t *\t\tviewConsumable.revert( p, { attributes: 'name' } ); // Reverts element's attribute.\n\t *\t\tviewConsumable.revert( p, { classes: 'foobar' } ); // Reverts element's class.\n\t *\t\tviewConsumable.revert( p, { styles: 'color' } ); // Reverts element's style.\n\t *\t\tviewConsumable.revert( p, { attributes: 'name', styles: 'color' } ); // Reverts attribute and style.\n\t *\t\tviewConsumable.revert( p, { classes: [ 'baz', 'bar' ] } ); // Multiple names can be reverted.\n\t *\t\tviewConsumable.revert( textNode ); // Reverts text node.\n\t *\t\tviewConsumable.revert( docFragment ); // Reverts document fragment.\n\t *\n\t * Reverting classes and styles as attribute will revert all classes/styles that were previously added for\n\t * consumption.\n\t *\n\t *\t\tviewConsumable.revert( p, { attributes: 'class' } ); // Reverts all classes added for consumption.\n\t *\t\tviewConsumable.revert( p, { attributes: 'style' } ); // Reverts all styles added for consumption.\n\t *\n\t * @param {module:engine/view/element~Element|module:engine/view/text~Text|module:engine/view/documentfragment~DocumentFragment} element\n\t * @param {Object} [consumables] Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param {Boolean} consumables.name If set to true element's name will be included.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names.\n\t */\n\tpublic revert( element: Node, consumables: Consumables ): void {\n\t\tconst elementConsumables = this._consumables.get( element );\n\n\t\tif ( elementConsumables !== undefined ) {\n\t\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\t\t// For text nodes and document fragments - set consumable to true.\n\t\t\t\tthis._consumables.set( element, true );\n\t\t\t} else {\n\t\t\t\t// For elements - revert items from consumables object.\n\t\t\t\t( elementConsumables as ViewElementConsumables ).revert( consumables );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Creates consumable object from {@link module:engine/view/element~Element view element}. Consumable object will include\n\t * element's name and all its attributes, classes and styles.\n\t *\n\t * @static\n\t * @param {module:engine/view/element~Element} element\n\t * @returns {Object} consumables\n\t */\n\tpublic static consumablesFromElement( element: Element ): Consumables & { element: Element } {\n\t\tconst consumables = {\n\t\t\telement,\n\t\t\tname: true,\n\t\t\tattributes: [] as Array<string>,\n\t\t\tclasses: [] as Array<string>,\n\t\t\tstyles: [] as Array<string>\n\t\t};\n\n\t\tconst attributes = element.getAttributeKeys();\n\n\t\tfor ( const attribute of attributes ) {\n\t\t\t// Skip classes and styles - will be added separately.\n\t\t\tif ( attribute == 'style' || attribute == 'class' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconsumables.attributes.push( attribute );\n\t\t}\n\n\t\tconst classes = element.getClassNames();\n\n\t\tfor ( const className of classes ) {\n\t\t\tconsumables.classes.push( className );\n\t\t}\n\n\t\tconst styles = element.getStyleNames();\n\n\t\tfor ( const style of styles ) {\n\t\t\tconsumables.styles.push( style );\n\t\t}\n\n\t\treturn consumables;\n\t}\n\n\t/**\n\t * Creates {@link module:engine/conversion/viewconsumable~ViewConsumable ViewConsumable} instance from\n\t * {@link module:engine/view/node~Node node} or {@link module:engine/view/documentfragment~DocumentFragment document fragment}.\n\t * Instance will contain all elements, child nodes, attributes, styles and classes added for consumption.\n\t *\n\t * @static\n\t * @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} from View node or document fragment\n\t * from which `ViewConsumable` will be created.\n\t * @param {module:engine/conversion/viewconsumable~ViewConsumable} [instance] If provided, given `ViewConsumable` instance will be used\n\t * to add all consumables. It will be returned instead of a new instance.\n\t */\n\tpublic static createFrom( from: Node | DocumentFragment, instance?: ViewConsumable ): ViewConsumable {\n\t\tif ( !instance ) {\n\t\t\tinstance = new ViewConsumable();\n\t\t}\n\n\t\tif ( from.is( '$text' ) ) {\n\t\t\tinstance.add( from );\n\n\t\t\treturn instance;\n\t\t}\n\n\t\t// Add `from` itself, if it is an element.\n\t\tif ( from.is( 'element' ) ) {\n\t\t\tinstance.add( from, ViewConsumable.consumablesFromElement( from ) );\n\t\t}\n\n\t\tif ( from.is( 'documentFragment' ) ) {\n\t\t\tinstance.add( from );\n\t\t}\n\n\t\tfor ( const child of ( from as Element | DocumentFragment ).getChildren() ) {\n\t\t\tinstance = ViewConsumable.createFrom( child, instance );\n\t\t}\n\n\t\treturn instance;\n\t}\n}\n\nexport interface Consumables {\n\tname?: boolean;\n\tattributes?: string | Array<string>;\n\tclasses?: string | Array<string>;\n\tstyles?: string | Array<string>;\n}\n\nconst CONSUMABLE_TYPES = [ 'attributes', 'classes', 'styles' ] as const;\n\ntype ConsumableType = ( typeof CONSUMABLE_TYPES )[ number ];\n\n/**\n * This is a private helper-class for {@link module:engine/conversion/viewconsumable~ViewConsumable}.\n * It represents and manipulates consumable parts of a single {@link module:engine/view/element~Element}.\n *\n * @private\n */\nclass ViewElementConsumables {\n\tpublic element: Node | DocumentFragment;\n\tprivate _canConsumeName: boolean | null;\n\tprivate readonly _consumables: Record<ConsumableType, Map<string, boolean>>;\n\n\t/**\n\t * Creates ViewElementConsumables instance.\n\t *\n\t * @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} from View node or document fragment\n\t * from which `ViewElementConsumables` is being created.\n\t */\n\tconstructor( from: Node | DocumentFragment ) {\n\t\t/**\n\t\t * @readonly\n\t\t * @member {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment}\n\t\t */\n\t\tthis.element = from;\n\n\t\t/**\n\t\t * Flag indicating if name of the element can be consumed.\n\t\t *\n\t\t * @private\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._canConsumeName = null;\n\n\t\t/**\n\t\t * Contains maps of element's consumables: attributes, classes and styles.\n\t\t *\n\t\t * @private\n\t\t * @member {Object}\n\t\t */\n\t\tthis._consumables = {\n\t\t\tattributes: new Map(),\n\t\t\tstyles: new Map(),\n\t\t\tclasses: new Map()\n\t\t};\n\t}\n\n\t/**\n\t * Adds consumable parts of the {@link module:engine/view/element~Element view element}.\n\t * Element's name itself can be marked to be consumed (when element's name is consumed its attributes, classes and\n\t * styles still could be consumed):\n\t *\n\t *\t\tconsumables.add( { name: true } );\n\t *\n\t * Attributes classes and styles:\n\t *\n\t *\t\tconsumables.add( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t *\t\tconsumables.add( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `viewconsumable-invalid-attribute` when `class` or `style`\n\t * attribute is provided - it should be handled separately by providing `style` and `class` in consumables object.\n\t *\n\t * @param {Object} consumables Object describing which parts of the element can be consumed.\n\t * @param {Boolean} consumables.name If set to `true` element's name will be added as consumable.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names to add as consumable.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names to add as consumable.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names to add as consumable.\n\t */\n\tpublic add( consumables: Consumables ): void {\n\t\tif ( consumables.name ) {\n\t\t\tthis._canConsumeName = true;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tthis._add( type, consumables[ type ]! );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Tests if parts of the {@link module:engine/view/node~Node view node} can be consumed.\n\t *\n\t * Element's name can be tested:\n\t *\n\t *\t\tconsumables.test( { name: true } );\n\t *\n\t * Attributes classes and styles:\n\t *\n\t *\t\tconsumables.test( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t *\t\tconsumables.test( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t *\n\t * @param {Object} consumables Object describing which parts of the element should be tested.\n\t * @param {Boolean} consumables.name If set to `true` element's name will be tested.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names to test.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names to test.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names to test.\n\t * @returns {Boolean|null} `true` when all tested items can be consumed, `null` when even one of the items\n\t * was never marked for consumption and `false` when even one of the items was already consumed.\n\t */\n\tpublic test( consumables: Consumables | Match ): boolean | null {\n\t\t// Check if name can be consumed.\n\t\tif ( consumables.name && !this._canConsumeName ) {\n\t\t\treturn this._canConsumeName;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tconst value = this._test( type, consumables[ type ]! );\n\n\t\t\t\tif ( value !== true ) {\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Return true only if all can be consumed.\n\t\treturn true;\n\t}\n\n\t/**\n\t * Consumes parts of {@link module:engine/view/element~Element view element}. This function does not check if consumable item\n\t * is already consumed - it consumes all consumable items provided.\n\t * Element's name can be consumed:\n\t *\n\t *\t\tconsumables.consume( { name: true } );\n\t *\n\t * Attributes classes and styles:\n\t *\n\t *\t\tconsumables.consume( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t *\t\tconsumables.consume( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t *\n\t * @param {Object} consumables Object describing which parts of the element should be consumed.\n\t * @param {Boolean} consumables.name If set to `true` element's name will be consumed.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names to consume.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names to consume.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names to consume.\n\t */\n\tpublic consume( consumables: Consumables | Match ): void {\n\t\tif ( consumables.name ) {\n\t\t\tthis._canConsumeName = false;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tthis._consume( type, consumables[ type ]! );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Revert already consumed parts of {@link module:engine/view/element~Element view Element}, so they can be consumed once again.\n\t * Element's name can be reverted:\n\t *\n\t *\t\tconsumables.revert( { name: true } );\n\t *\n\t * Attributes classes and styles:\n\t *\n\t *\t\tconsumables.revert( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t *\t\tconsumables.revert( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t *\n\t * @param {Object} consumables Object describing which parts of the element should be reverted.\n\t * @param {Boolean} consumables.name If set to `true` element's name will be reverted.\n\t * @param {String|Array.<String>} consumables.attributes Attribute name or array of attribute names to revert.\n\t * @param {String|Array.<String>} consumables.classes Class name or array of class names to revert.\n\t * @param {String|Array.<String>} consumables.styles Style name or array of style names to revert.\n\t */\n\tpublic revert( consumables: Consumables ): void {\n\t\tif ( consumables.name ) {\n\t\t\tthis._canConsumeName = true;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tthis._revert( type, consumables[ type ]! );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Helper method that adds consumables of a given type: attribute, class or style.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `viewconsumable-invalid-attribute` when `class` or `style`\n\t * type is provided - it should be handled separately by providing actual style/class type.\n\t *\n\t * @private\n\t * @param {String} type Type of the consumable item: `attributes`, `classes` or `styles`.\n\t * @param {String|Array.<String>} item Consumable item or array of items.\n\t */\n\tprivate _add( type: ConsumableType, item: string | Array<string> ) {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\t/**\n\t\t\t\t * Class and style attributes should be handled separately in\n\t\t\t\t * {@link module:engine/conversion/viewconsumable~ViewConsumable#add `ViewConsumable#add()`}.\n\t\t\t\t *\n\t\t\t\t * What you have done is trying to use:\n\t\t\t\t *\n\t\t\t\t *\t\tconsumables.add( { attributes: [ 'class', 'style' ] } );\n\t\t\t\t *\n\t\t\t\t * While each class and style should be registered separately:\n\t\t\t\t *\n\t\t\t\t *\t\tconsumables.add( { classes: 'some-class', styles: 'font-weight' } );\n\t\t\t\t *\n\t\t\t\t * @error viewconsumable-invalid-attribute\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'viewconsumable-invalid-attribute', this );\n\t\t\t}\n\n\t\t\tconsumables.set( name, true );\n\n\t\t\tif ( type === 'styles' ) {\n\t\t\t\tfor ( const alsoName of this.element.document.stylesProcessor.getRelatedStyles( name ) ) {\n\t\t\t\t\tconsumables.set( alsoName, true );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Helper method that tests consumables of a given type: attribute, class or style.\n\t *\n\t * @private\n\t * @param {String} type Type of the consumable item: `attributes`, `classes` or `styles`.\n\t * @param {String|Array.<String>} item Consumable item or array of items.\n\t * @returns {Boolean|null} Returns `true` if all items can be consumed, `null` when one of the items cannot be\n\t * consumed and `false` when one of the items is already consumed.\n\t */\n\tprivate _test( type: ConsumableType, item: string | Array<string> ): boolean | null {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\tconst consumableName = name == 'class' ? 'classes' : 'styles';\n\n\t\t\t\t// Check all classes/styles if class/style attribute is tested.\n\t\t\t\tconst value = this._test( consumableName, [ ...this._consumables[ consumableName ].keys() ] );\n\n\t\t\t\tif ( value !== true ) {\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst value = consumables.get( name );\n\t\t\t\t// Return null if attribute is not found.\n\t\t\t\tif ( value === undefined ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tif ( !value ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Helper method that consumes items of a given type: attribute, class or style.\n\t *\n\t * @private\n\t * @param {String} type Type of the consumable item: `attributes`, `classes` or `styles`.\n\t * @param {String|Array.<String>} item Consumable item or array of items.\n\t */\n\tprivate _consume( type: ConsumableType, item: string | Array<string> ) {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\tconst consumableName = name == 'class' ? 'classes' : 'styles';\n\n\t\t\t\t// If class or style is provided for consumption - consume them all.\n\t\t\t\tthis._consume( consumableName, [ ...this._consumables[ consumableName ].keys() ] );\n\t\t\t} else {\n\t\t\t\tconsumables.set( name, false );\n\n\t\t\t\tif ( type == 'styles' ) {\n\t\t\t\t\tfor ( const toConsume of this.element.document.stylesProcessor.getRelatedStyles( name ) ) {\n\t\t\t\t\t\tconsumables.set( toConsume, false );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Helper method that reverts items of a given type: attribute, class or style.\n\t *\n\t * @private\n\t * @param {String} type Type of the consumable item: `attributes`, `classes` or , `styles`.\n\t * @param {String|Array.<String>} item Consumable item or array of items.\n\t */\n\tprivate _revert( type: ConsumableType, item: string | Array<string> ) {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\tconst consumableName = name == 'class' ? 'classes' : 'styles';\n\n\t\t\t\t// If class or style is provided for reverting - revert them all.\n\t\t\t\tthis._revert( consumableName, [ ...this._consumables[ consumableName ].keys() ] );\n\t\t\t} else {\n\t\t\t\tconst value = consumables.get( name );\n\n\t\t\t\tif ( value === false ) {\n\t\t\t\t\tconsumables.set( name, true );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/schema\n */\n\nimport Element from './element';\nimport Position from './position';\nimport Range from './range';\nimport Text from './text';\nimport TreeWalker from './treewalker';\n\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type Item from './item';\nimport type Node from './node';\nimport type Selection from './selection';\nimport type Writer from './writer';\n\nimport { CKEditorError, ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The model's schema. It defines the allowed and disallowed structures of nodes as well as nodes' attributes.\n * The schema is usually defined by the features and based on them, the editing framework and features\n * make decisions on how to change and process the model.\n *\n * The instance of schema is available in {@link module:engine/model/model~Model#schema `editor.model.schema`}.\n *\n * Read more about the schema in:\n *\n * * The {@glink framework/guides/architecture/editing-engine#schema schema section} of the\n * {@glink framework/guides/architecture/editing-engine Introduction to the Editing engine architecture} guide.\n * * The {@glink framework/guides/deep-dive/schema Schema deep-dive guide}.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class Schema extends ObservableMixin() {\n\tprivate readonly _sourceDefinitions: Record<string, Array<SchemaItemDefinition>>;\n\tprivate readonly _attributeProperties: Record<string, AttributeProperties>;\n\tprivate _compiledDefinitions?: Record<string, SchemaCompiledItemDefinition> | null;\n\n\t/**\n\t * Creates a schema instance.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\tthis._sourceDefinitions = {};\n\n\t\t/**\n\t\t * A dictionary containing attribute properties.\n\t\t *\n\t\t * @private\n\t\t * @member {Object.<String,AttributeProperties>}\n\t\t */\n\t\tthis._attributeProperties = {};\n\n\t\tthis.decorate( 'checkChild' );\n\t\tthis.decorate( 'checkAttribute' );\n\n\t\tthis.on( 'checkAttribute', ( evt, args ) => {\n\t\t\targs[ 0 ] = new SchemaContext( args[ 0 ] );\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.on( 'checkChild', ( evt, args ) => {\n\t\t\targs[ 0 ] = new SchemaContext( args[ 0 ] );\n\t\t\targs[ 1 ] = this.getDefinition( args[ 1 ] );\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Registers a schema item. Can only be called once for every item name.\n\t *\n\t *\t\tschema.register( 'paragraph', {\n\t *\t\t\tinheritAllFrom: '$block'\n\t *\t\t} );\n\t *\n\t * @param {String} itemName\n\t * @param {module:engine/model/schema~SchemaItemDefinition} definition\n\t */\n\tpublic register( itemName: string, definition?: SchemaItemDefinition ): void {\n\t\tif ( this._sourceDefinitions[ itemName ] ) {\n\t\t\t/**\n\t\t\t * A single item cannot be registered twice in the schema.\n\t\t\t *\n\t\t\t * This situation may happen when:\n\t\t\t *\n\t\t\t * * Two or more plugins called {@link #register `register()`} with the same name. This will usually mean that\n\t\t\t * there is a collision between plugins which try to use the same element in the model. Unfortunately,\n\t\t\t * the only way to solve this is by modifying one of these plugins to use a unique model element name.\n\t\t\t * * A single plugin was loaded twice. This happens when it is installed by npm/yarn in two versions\n\t\t\t * and usually means one or more of the following issues:\n\t\t\t *     * a version mismatch (two of your dependencies require two different versions of this plugin),\n\t\t\t *     * incorrect imports (this plugin is somehow imported twice in a way which confuses webpack),\n\t\t\t *     * mess in `node_modules/` (`rm -rf node_modules/` may help).\n\t\t\t *\n\t\t\t * **Note:** Check the logged `itemName` to better understand which plugin was duplicated/conflicting.\n\t\t\t *\n\t\t\t * @param itemName The name of the model element that is being registered twice.\n\t\t\t * @error schema-cannot-register-item-twice\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'schema-cannot-register-item-twice',\n\t\t\t\tthis,\n\t\t\t\t{\n\t\t\t\t\titemName\n\t\t\t\t}\n\t\t\t);\n\t\t}\n\n\t\tthis._sourceDefinitions[ itemName ] = [\n\t\t\tObject.assign( {}, definition )\n\t\t];\n\n\t\tthis._clearCache();\n\t}\n\n\t/**\n\t * Extends a {@link #register registered} item's definition.\n\t *\n\t * Extending properties such as `allowIn` will add more items to the existing properties,\n\t * while redefining properties such as `isBlock` will override the previously defined ones.\n\t *\n\t *\t\tschema.register( 'foo', {\n\t *\t\t\tallowIn: '$root',\n\t *\t\t\tisBlock: true;\n\t *\t\t} );\n\t *\t\tschema.extend( 'foo', {\n\t *\t\t\tallowIn: 'blockQuote',\n\t *\t\t\tisBlock: false\n\t *\t\t} );\n\t *\n\t *\t\tschema.getDefinition( 'foo' );\n\t *\t\t//\t{\n\t *\t\t//\t\tallowIn: [ '$root', 'blockQuote' ],\n\t *\t\t// \t\tisBlock: false\n\t *\t\t//\t}\n\t *\n\t * @param {String} itemName\n\t * @param {module:engine/model/schema~SchemaItemDefinition} definition\n\t */\n\tpublic extend( itemName: string, definition: SchemaItemDefinition ): void {\n\t\tif ( !this._sourceDefinitions[ itemName ] ) {\n\t\t\t/**\n\t\t\t * Cannot extend an item which was not registered yet.\n\t\t\t *\n\t\t\t * This error happens when a plugin tries to extend the schema definition of an item which was not\n\t\t\t * {@link #register registered} yet.\n\t\t\t *\n\t\t\t * @param itemName The name of the model element which is being extended.\n\t\t\t * @error schema-cannot-extend-missing-item\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'schema-cannot-extend-missing-item', this, {\n\t\t\t\titemName\n\t\t\t} );\n\t\t}\n\n\t\tthis._sourceDefinitions[ itemName ].push( Object.assign( {}, definition ) );\n\n\t\tthis._clearCache();\n\t}\n\n\t/**\n\t * Returns data of all registered items.\n\t *\n\t * This method should normally be used for reflection purposes (e.g. defining a clone of a certain element,\n\t * checking a list of all block elements, etc).\n\t * Use specific methods (such as {@link #checkChild `checkChild()`} or {@link #isLimit `isLimit()`})\n\t * in other cases.\n\t *\n\t * @returns {Object.<String,module:engine/model/schema~SchemaCompiledItemDefinition>}\n\t */\n\tpublic getDefinitions(): Record<string, SchemaCompiledItemDefinition> {\n\t\tif ( !this._compiledDefinitions ) {\n\t\t\tthis._compile();\n\t\t}\n\n\t\treturn this._compiledDefinitions!;\n\t}\n\n\t/**\n\t * Returns a definition of the given item or `undefined` if an item is not registered.\n\t *\n\t * This method should normally be used for reflection purposes (e.g. defining a clone of a certain element,\n\t * checking a list of all block elements, etc).\n\t * Use specific methods (such as {@link #checkChild `checkChild()`} or {@link #isLimit `isLimit()`})\n\t * in other cases.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {module:engine/model/schema~SchemaCompiledItemDefinition}\n\t */\n\tpublic getDefinition( item: string | Item | DocumentFragment | SchemaContextItem ): SchemaCompiledItemDefinition | undefined {\n\t\tlet itemName: string;\n\n\t\tif ( typeof item == 'string' ) {\n\t\t\titemName = item;\n\t\t} else if ( 'is' in item && ( item.is( '$text' ) || item.is( '$textProxy' ) ) ) {\n\t\t\titemName = '$text';\n\t\t}\n\t\t// Element or module:engine/model/schema~SchemaContextItem.\n\t\telse {\n\t\t\titemName = ( item as any ).name;\n\t\t}\n\n\t\treturn this.getDefinitions()[ itemName ];\n\t}\n\n\t/**\n\t * Returns `true` if the given item is registered in the schema.\n\t *\n\t *\t\tschema.isRegistered( 'paragraph' ); // -> true\n\t *\t\tschema.isRegistered( editor.model.document.getRoot() ); // -> true\n\t *\t\tschema.isRegistered( 'foo' ); // -> false\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {Boolean}\n\t */\n\tpublic isRegistered( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\treturn !!this.getDefinition( item );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * a block by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isBlock` property.\n\t *\n\t *\t\tschema.isBlock( 'paragraph' ); // -> true\n\t *\t\tschema.isBlock( '$root' ); // -> false\n\t *\n\t *\t\tconst paragraphElement = writer.createElement( 'paragraph' );\n\t *\t\tschema.isBlock( paragraphElement ); // -> true\n\t *\n\t * See the {@glink framework/guides/deep-dive/schema#block-elements Block elements} section of\n\t * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide} for more details.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {Boolean}\n\t */\n\tpublic isBlock( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\treturn !!( def && def.isBlock );\n\t}\n\n\t/**\n\t * Returns `true` if the given item should be treated as a limit element.\n\t *\n\t * It considers an item to be a limit element if its\n\t * {@link module:engine/model/schema~SchemaItemDefinition}'s\n\t * {@link module:engine/model/schema~SchemaItemDefinition#isLimit `isLimit`} or\n\t * {@link module:engine/model/schema~SchemaItemDefinition#isObject `isObject`} property\n\t * was set to `true`.\n\t *\n\t *\t\tschema.isLimit( 'paragraph' ); // -> false\n\t *\t\tschema.isLimit( '$root' ); // -> true\n\t *\t\tschema.isLimit( editor.model.document.getRoot() ); // -> true\n\t *\t\tschema.isLimit( 'imageBlock' ); // -> true\n\t *\n\t * See the {@glink framework/guides/deep-dive/schema#limit-elements Limit elements} section of\n\t * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide} for more details.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {Boolean}\n\t */\n\tpublic isLimit( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !!( def.isLimit || def.isObject );\n\t}\n\n\t/**\n\t * Returns `true` if the given item should be treated as an object element.\n\t *\n\t * It considers an item to be an object element if its\n\t * {@link module:engine/model/schema~SchemaItemDefinition}'s\n\t * {@link module:engine/model/schema~SchemaItemDefinition#isObject `isObject`} property\n\t * was set to `true`.\n\t *\n\t *\t\tschema.isObject( 'paragraph' ); // -> false\n\t *\t\tschema.isObject( 'imageBlock' ); // -> true\n\t *\n\t *\t\tconst imageElement = writer.createElement( 'imageBlock' );\n\t *\t\tschema.isObject( imageElement ); // -> true\n\t *\n\t * See the {@glink framework/guides/deep-dive/schema#object-elements Object elements} section of\n\t * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide} for more details.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {Boolean}\n\t */\n\tpublic isObject( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Note: Check out the implementation of #isLimit(), #isSelectable(), and #isContent()\n\t\t// to understand why these three constitute an object.\n\t\treturn !!( def.isObject || ( def.isLimit && def.isSelectable && def.isContent ) );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * an inline element by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isInline` property.\n\t *\n\t *\t\tschema.isInline( 'paragraph' ); // -> false\n\t *\t\tschema.isInline( 'softBreak' ); // -> true\n\t *\n\t *\t\tconst text = writer.createText( 'foo' );\n\t *\t\tschema.isInline( text ); // -> true\n\t *\n\t * See the {@glink framework/guides/deep-dive/schema#inline-elements Inline elements} section of\n\t * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide} for more details.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {Boolean}\n\t */\n\tpublic isInline( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\treturn !!( def && def.isInline );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * a selectable element by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isSelectable` property.\n\t *\n\t *\t\tschema.isSelectable( 'paragraph' ); // -> false\n\t *\t\tschema.isSelectable( 'heading1' ); // -> false\n\t *\t\tschema.isSelectable( 'imageBlock' ); // -> true\n\t *\t\tschema.isSelectable( 'tableCell' ); // -> true\n\t *\n\t *\t\tconst text = writer.createText( 'foo' );\n\t *\t\tschema.isSelectable( text ); // -> false\n\t *\n\t * See the {@glink framework/guides/deep-dive/schema#selectable-elements Selectable elements section} of\n\t * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide} for more details.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {Boolean}\n\t */\n\tpublic isSelectable( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !!( def.isSelectable || def.isObject );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * a content by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isContent` property.\n\t *\n\t *\t\tschema.isContent( 'paragraph' ); // -> false\n\t *\t\tschema.isContent( 'heading1' ); // -> false\n\t *\t\tschema.isContent( 'imageBlock' ); // -> true\n\t *\t\tschema.isContent( 'horizontalLine' ); // -> true\n\t *\n\t *\t\tconst text = writer.createText( 'foo' );\n\t *\t\tschema.isContent( text ); // -> true\n\t *\n\t * See the {@glink framework/guides/deep-dive/schema#content-elements Content elements section} of\n\t * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide} for more details.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/schema~SchemaContextItem|String} item\n\t * @returns {Boolean}\n\t */\n\tpublic isContent( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !!( def.isContent || def.isObject );\n\t}\n\n\t/**\n\t * Checks whether the given node (`child`) can be a child of the given context.\n\t *\n\t *\t\tschema.checkChild( model.document.getRoot(), paragraph ); // -> false\n\t *\n\t *\t\tschema.register( 'paragraph', {\n\t *\t\t\tallowIn: '$root'\n\t *\t\t} );\n\t *\t\tschema.checkChild( model.document.getRoot(), paragraph ); // -> true\n\t *\n\t * Note: When verifying whether the given node can be a child of the given context, the\n\t * schema also verifies the entire context &mdash; from its root to its last element. Therefore, it is possible\n\t * for `checkChild()` to return `false` even though the context's last element can contain the checked child.\n\t * It happens if one of the context's elements does not allow its child.\n\t *\n\t * @fires checkChild\n\t * @param {module:engine/model/schema~SchemaContextDefinition} context The context in which the child will be checked.\n\t * @param {module:engine/model/node~Node|String} def The child to check.\n\t * @returns {Boolean}\n\t */\n\tpublic checkChild( context: SchemaContextDefinition, def: string | Node | DocumentFragment ): boolean {\n\t\t// Note: context and child are already normalized here to a SchemaContext and SchemaCompiledItemDefinition.\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn this._checkContextMatch( def as any, context as any );\n\t}\n\n\t/**\n\t * Checks whether the given attribute can be applied in the given context (on the last\n\t * item of the context).\n\t *\n\t *\t\tschema.checkAttribute( textNode, 'bold' ); // -> false\n\t *\n\t *\t\tschema.extend( '$text', {\n\t *\t\t\tallowAttributes: 'bold'\n\t *\t\t} );\n\t *\t\tschema.checkAttribute( textNode, 'bold' ); // -> true\n\t *\n\t * @fires checkAttribute\n\t * @param {module:engine/model/schema~SchemaContextDefinition} context The context in which the attribute will be checked.\n\t * @param {String} attributeName\n\t * @returns {Boolean}\n\t */\n\tpublic checkAttribute( context: SchemaContextDefinition, attributeName: string ): boolean {\n\t\tconst def = this.getDefinition( ( context as any ).last );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn def.allowAttributes.includes( attributeName );\n\t}\n\n\t/**\n\t * Checks whether the given element (`elementToMerge`) can be merged with the specified base element (`positionOrBaseElement`).\n\t *\n\t * In other words &mdash; whether `elementToMerge`'s children {@link #checkChild are allowed} in the `positionOrBaseElement`.\n\t *\n\t * This check ensures that elements merged with {@link module:engine/model/writer~Writer#merge `Writer#merge()`}\n\t * will be valid.\n\t *\n\t * Instead of elements, you can pass the instance of the {@link module:engine/model/position~Position} class as the\n\t * `positionOrBaseElement`. It means that the elements before and after the position will be checked whether they can be merged.\n\t *\n\t * @param {module:engine/model/position~Position|module:engine/model/element~Element} positionOrBaseElement The position or base\n\t * element to which the `elementToMerge` will be merged.\n\t * @param {module:engine/model/element~Element} elementToMerge The element to merge. Required if `positionOrBaseElement` is an element.\n\t * @returns {Boolean}\n\t */\n\tpublic checkMerge( positionOrBaseElement: Position | Element, elementToMerge: Element ): boolean {\n\t\tif ( positionOrBaseElement instanceof Position ) {\n\t\t\tconst nodeBefore = positionOrBaseElement.nodeBefore;\n\t\t\tconst nodeAfter = positionOrBaseElement.nodeAfter;\n\n\t\t\tif ( !( nodeBefore instanceof Element ) ) {\n\t\t\t\t/**\n\t\t\t\t * The node before the merge position must be an element.\n\t\t\t\t *\n\t\t\t\t * @error schema-check-merge-no-element-before\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'schema-check-merge-no-element-before',\n\t\t\t\t\tthis\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tif ( !( nodeAfter instanceof Element ) ) {\n\t\t\t\t/**\n\t\t\t\t * The node after the merge position must be an element.\n\t\t\t\t *\n\t\t\t\t * @error schema-check-merge-no-element-after\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'schema-check-merge-no-element-after',\n\t\t\t\t\tthis\n\t\t\t\t);\n\t\t\t}\n\n\t\t\treturn this.checkMerge( nodeBefore, nodeAfter );\n\t\t}\n\n\t\tfor ( const child of elementToMerge.getChildren() ) {\n\t\t\tif ( !this.checkChild( positionOrBaseElement, child ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Allows registering a callback to the {@link #checkChild} method calls.\n\t *\n\t * Callbacks allow you to implement rules which are not otherwise possible to achieve\n\t * by using the declarative API of {@link module:engine/model/schema~SchemaItemDefinition}.\n\t * For example, by using this method you can disallow elements in specific contexts.\n\t *\n\t * This method is a shorthand for using the {@link #event:checkChild} event. For even better control,\n\t * you can use that event instead.\n\t *\n\t * Example:\n\t *\n\t *\t\t// Disallow heading1 directly inside a blockQuote.\n\t *\t\tschema.addChildCheck( ( context, childDefinition ) => {\n\t *\t\t\tif ( context.endsWith( 'blockQuote' ) && childDefinition.name == 'heading1' ) {\n\t *\t\t\t\treturn false;\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * Which translates to:\n\t *\n\t *\t\tschema.on( 'checkChild', ( evt, args ) => {\n\t *\t\t\tconst context = args[ 0 ];\n\t *\t\t\tconst childDefinition = args[ 1 ];\n\t *\n\t *\t\t\tif ( context.endsWith( 'blockQuote' ) && childDefinition && childDefinition.name == 'heading1' ) {\n\t *\t\t\t\t// Prevent next listeners from being called.\n\t *\t\t\t\tevt.stop();\n\t *\t\t\t\t// Set the checkChild()'s return value.\n\t *\t\t\t\tevt.return = false;\n\t *\t\t\t}\n\t *\t\t}, { priority: 'high' } );\n\t *\n\t * @param {Function} callback The callback to be called. It is called with two parameters:\n\t * {@link module:engine/model/schema~SchemaContext} (context) instance and\n\t * {@link module:engine/model/schema~SchemaCompiledItemDefinition} (child-to-check definition).\n\t * The callback may return `true/false` to override `checkChild()`'s return value. If it does not return\n\t * a boolean value, the default algorithm (or other callbacks) will define `checkChild()`'s return value.\n\t */\n\tpublic addChildCheck( callback: ( ctx: SchemaContextDefinition, def: SchemaCompiledItemDefinition ) => unknown ): void {\n\t\tthis.on<SchemaCheckChildEvent>( 'checkChild', ( evt, [ ctx, childDef ] ) => {\n\t\t\t// checkChild() was called with a non-registered child.\n\t\t\t// In 99% cases such check should return false, so not to overcomplicate all callbacks\n\t\t\t// don't even execute them.\n\t\t\tif ( !childDef ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst retValue = callback( ctx, childDef );\n\n\t\t\tif ( typeof retValue == 'boolean' ) {\n\t\t\t\tevt.stop();\n\t\t\t\tevt.return = retValue;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Allows registering a callback to the {@link #checkAttribute} method calls.\n\t *\n\t * Callbacks allow you to implement rules which are not otherwise possible to achieve\n\t * by using the declarative API of {@link module:engine/model/schema~SchemaItemDefinition}.\n\t * For example, by using this method you can disallow attribute if node to which it is applied\n\t * is contained within some other element (e.g. you want to disallow `bold` on `$text` within `heading1`).\n\t *\n\t * This method is a shorthand for using the {@link #event:checkAttribute} event. For even better control,\n\t * you can use that event instead.\n\t *\n\t * Example:\n\t *\n\t *\t\t// Disallow bold on $text inside heading1.\n\t *\t\tschema.addAttributeCheck( ( context, attributeName ) => {\n\t *\t\t\tif ( context.endsWith( 'heading1 $text' ) && attributeName == 'bold' ) {\n\t *\t\t\t\treturn false;\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * Which translates to:\n\t *\n\t *\t\tschema.on( 'checkAttribute', ( evt, args ) => {\n\t *\t\t\tconst context = args[ 0 ];\n\t *\t\t\tconst attributeName = args[ 1 ];\n\t *\n\t *\t\t\tif ( context.endsWith( 'heading1 $text' ) && attributeName == 'bold' ) {\n\t *\t\t\t\t// Prevent next listeners from being called.\n\t *\t\t\t\tevt.stop();\n\t *\t\t\t\t// Set the checkAttribute()'s return value.\n\t *\t\t\t\tevt.return = false;\n\t *\t\t\t}\n\t *\t\t}, { priority: 'high' } );\n\t *\n\t * @param {Function} callback The callback to be called. It is called with two parameters:\n\t * {@link module:engine/model/schema~SchemaContext} (context) instance and attribute name.\n\t * The callback may return `true/false` to override `checkAttribute()`'s return value. If it does not return\n\t * a boolean value, the default algorithm (or other callbacks) will define `checkAttribute()`'s return value.\n\t */\n\tpublic addAttributeCheck( callback: ( context: SchemaContextDefinition, attributeName: string ) => unknown ): void {\n\t\tthis.on<SchemaCheckAttributeEvent>( 'checkAttribute', ( evt, [ ctx, attributeName ] ) => {\n\t\t\tconst retValue = callback( ctx, attributeName );\n\n\t\t\tif ( typeof retValue == 'boolean' ) {\n\t\t\t\tevt.stop();\n\t\t\t\tevt.return = retValue;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * This method allows assigning additional metadata to the model attributes. For example,\n\t * {@link module:engine/model/schema~AttributeProperties `AttributeProperties#isFormatting` property} is\n\t * used to mark formatting attributes (like `bold` or `italic`).\n\t *\n\t *\t\t// Mark bold as a formatting attribute.\n\t *\t\tschema.setAttributeProperties( 'bold', {\n\t *\t\t\tisFormatting: true\n\t *\t\t} );\n\t *\n\t *\t\t// Override code not to be considered a formatting markup.\n\t *\t\tschema.setAttributeProperties( 'code', {\n\t *\t\t\tisFormatting: false\n\t *\t\t} );\n\t *\n\t * Properties are not limited to members defined in the\n\t * {@link module:engine/model/schema~AttributeProperties `AttributeProperties` type} and you can also use custom properties:\n\t *\n\t *\t\tschema.setAttributeProperties( 'blockQuote', {\n\t *\t\t\tcustomProperty: 'value'\n\t *\t\t} );\n\t *\n\t * Subsequent calls with the same attribute will extend its custom properties:\n\t *\n\t *\t\tschema.setAttributeProperties( 'blockQuote', {\n\t *\t\t\tone: 1\n\t *\t\t} );\n\t *\n\t *\t\tschema.setAttributeProperties( 'blockQuote', {\n\t *\t\t\ttwo: 2\n\t *\t\t} );\n\t *\n\t *\t\tconsole.log( schema.getAttributeProperties( 'blockQuote' ) );\n\t *\t\t// Logs: { one: 1, two: 2 }\n\t *\n\t * @param {String} attributeName A name of the attribute to receive the properties.\n\t * @param {module:engine/model/schema~AttributeProperties} properties A dictionary of properties.\n\t */\n\tpublic setAttributeProperties( attributeName: string, properties: AttributeProperties ): void {\n\t\tthis._attributeProperties[ attributeName ] = Object.assign( this.getAttributeProperties( attributeName ), properties );\n\t}\n\n\t/**\n\t * Returns properties associated with a given model attribute. See {@link #setAttributeProperties `setAttributeProperties()`}.\n\t *\n\t * @param {String} attributeName A name of the attribute.\n\t * @returns {module:engine/model/schema~AttributeProperties}\n\t */\n\tpublic getAttributeProperties( attributeName: string ): AttributeProperties {\n\t\treturn this._attributeProperties[ attributeName ] || {};\n\t}\n\n\t/**\n\t * Returns the lowest {@link module:engine/model/schema~Schema#isLimit limit element} containing the entire\n\t * selection/range/position or the root otherwise.\n\t *\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection|\n\t * module:engine/model/range~Range|module:engine/model/position~Position} selectionOrRangeOrPosition\n\t * The selection/range/position to check.\n\t * @returns {module:engine/model/element~Element} The lowest limit element containing\n\t * the entire `selectionOrRangeOrPosition`.\n\t */\n\tpublic getLimitElement( selectionOrRangeOrPosition: Selection | DocumentSelection | Range | Position ): Element {\n\t\tlet element: Element;\n\n\t\tif ( selectionOrRangeOrPosition instanceof Position ) {\n\t\t\telement = selectionOrRangeOrPosition.parent as Element;\n\t\t} else {\n\t\t\tconst ranges = selectionOrRangeOrPosition instanceof Range ?\n\t\t\t\t[ selectionOrRangeOrPosition ] :\n\t\t\t\tArray.from( selectionOrRangeOrPosition.getRanges() );\n\n\t\t\t// Find the common ancestor for all selection's ranges.\n\t\t\telement = ranges\n\t\t\t\t.reduce<Element | null>( ( element, range ) => {\n\t\t\t\t\tconst rangeCommonAncestor = range.getCommonAncestor() as ( Element | null );\n\n\t\t\t\t\tif ( !element ) {\n\t\t\t\t\t\treturn rangeCommonAncestor;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn element.getCommonAncestor( rangeCommonAncestor as Element, { includeSelf: true } ) as Element;\n\t\t\t\t}, null )!;\n\t\t}\n\n\t\twhile ( !this.isLimit( element ) ) {\n\t\t\tif ( element.parent ) {\n\t\t\t\telement = element.parent as Element;\n\t\t\t} else {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\treturn element;\n\t}\n\n\t/**\n\t * Checks whether the attribute is allowed in selection:\n\t *\n\t * * if the selection is not collapsed, then checks if the attribute is allowed on any of nodes in that range,\n\t * * if the selection is collapsed, then checks if on the selection position there's a text with the\n\t * specified attribute allowed.\n\t *\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n\t * Selection which will be checked.\n\t * @param {String} attribute The name of the attribute to check.\n\t * @returns {Boolean}\n\t */\n\tpublic checkAttributeInSelection( selection: Selection | DocumentSelection, attribute: string ): boolean {\n\t\tif ( selection.isCollapsed ) {\n\t\t\tconst firstPosition = selection.getFirstPosition()!;\n\t\t\tconst context = [\n\t\t\t\t...firstPosition.getAncestors() as Array<Element>,\n\t\t\t\tnew Text( '', selection.getAttributes() )\n\t\t\t];\n\n\t\t\t// Check whether schema allows for a text with the attribute in the selection.\n\t\t\treturn this.checkAttribute( context, attribute );\n\t\t} else {\n\t\t\tconst ranges = selection.getRanges();\n\n\t\t\t// For all ranges, check nodes in them until you find a node that is allowed to have the attribute.\n\t\t\tfor ( const range of ranges ) {\n\t\t\t\tfor ( const value of range ) {\n\t\t\t\t\tif ( this.checkAttribute( value.item, attribute ) ) {\n\t\t\t\t\t\t// If we found a node that is allowed to have the attribute, return true.\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// If we haven't found such node, return false.\n\t\treturn false;\n\t}\n\n\t/**\n\t * Transforms the given set of ranges into a set of ranges where the given attribute is allowed (and can be applied).\n\t *\n\t * @param {Iterable.<module:engine/model/range~Range>} ranges Ranges to be validated.\n\t * @param {String} attribute The name of the attribute to check.\n\t * @returns {Iterable.<module:engine/model/range~Range>} Ranges in which the attribute is allowed.\n\t */\n\tpublic* getValidRanges( ranges: Iterable<Range>, attribute: string ): IterableIterator<Range> {\n\t\tranges = convertToMinimalFlatRanges( ranges );\n\n\t\tfor ( const range of ranges ) {\n\t\t\tyield* this._getValidRangesForRange( range, attribute );\n\t\t}\n\t}\n\n\t/**\n\t * Basing on given `position`, finds and returns a {@link module:engine/model/range~Range range} which is\n\t * nearest to that `position` and is a correct range for selection.\n\t *\n\t * The correct selection range might be collapsed when it is located in a position where the text node can be placed.\n\t * Non-collapsed range is returned when selection can be placed around element marked as an \"object\" in\n\t * the {@link module:engine/model/schema~Schema schema}.\n\t *\n\t * Direction of searching for the nearest correct selection range can be specified as:\n\t *\n\t * * `both` - searching will be performed in both ways,\n\t * * `forward` - searching will be performed only forward,\n\t * * `backward` - searching will be performed only backward.\n\t *\n\t * When valid selection range cannot be found, `null` is returned.\n\t *\n\t * @param {module:engine/model/position~Position} position Reference position where new selection range should be looked for.\n\t * @param {'both'|'forward'|'backward'} [direction='both'] Search direction.\n\t * @returns {module:engine/model/range~Range|null} Nearest selection range or `null` if one cannot be found.\n\t */\n\tpublic getNearestSelectionRange( position: Position, direction: 'both' | 'forward' | 'backward' = 'both' ): Range | null {\n\t\t// Return collapsed range if provided position is valid.\n\t\tif ( this.checkChild( position, '$text' ) ) {\n\t\t\treturn new Range( position );\n\t\t}\n\n\t\tlet backwardWalker, forwardWalker;\n\n\t\t// Never leave a limit element.\n\t\tconst limitElement = ( position.getAncestors() as Array<Element> ).reverse().find( item => this.isLimit( item ) ) ||\n\t\t\tposition.root as Element;\n\n\t\tif ( direction == 'both' || direction == 'backward' ) {\n\t\t\tbackwardWalker = new TreeWalker( {\n\t\t\t\tboundaries: Range._createIn( limitElement ),\n\t\t\t\tstartPosition: position,\n\t\t\t\tdirection: 'backward'\n\t\t\t} );\n\t\t}\n\n\t\tif ( direction == 'both' || direction == 'forward' ) {\n\t\t\tforwardWalker = new TreeWalker( {\n\t\t\t\tboundaries: Range._createIn( limitElement ),\n\t\t\t\tstartPosition: position\n\t\t\t} );\n\t\t}\n\n\t\tfor ( const data of combineWalkers( backwardWalker, forwardWalker ) ) {\n\t\t\tconst type = ( data.walker == backwardWalker ? 'elementEnd' : 'elementStart' );\n\t\t\tconst value = data.value;\n\n\t\t\tif ( value.type == type && this.isObject( value.item ) ) {\n\t\t\t\treturn Range._createOn( value.item );\n\t\t\t}\n\n\t\t\tif ( this.checkChild( value.nextPosition, '$text' ) ) {\n\t\t\t\treturn new Range( value.nextPosition );\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Tries to find position ancestors that allow to insert a given node.\n\t * It starts searching from the given position and goes node by node to the top of the model tree\n\t * as long as a {@link module:engine/model/schema~Schema#isLimit limit element}, an\n\t * {@link module:engine/model/schema~Schema#isObject object element} or a topmost ancestor is not reached.\n\t *\n\t * @param {module:engine/model/position~Position} position The position that the search will start from.\n\t * @param {module:engine/model/node~Node|String} node The node for which an allowed parent should be found or its name.\n\t * @returns {module:engine/model/element~Element|null} element Allowed parent or null if nothing was found.\n\t */\n\tpublic findAllowedParent( position: Position, node: Node | string ): Element | null {\n\t\tlet parent = position.parent as ( Element | null );\n\n\t\twhile ( parent ) {\n\t\t\tif ( this.checkChild( parent, node ) ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\t// Do not split limit elements.\n\t\t\tif ( this.isLimit( parent ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tparent = parent.parent as ( Element | null );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Sets attributes allowed by the schema on a given node.\n\t *\n\t * @param {module:engine/model/node~Node} node A node to set attributes on.\n\t * @param {Object} attributes Attributes keys and values.\n\t * @param {module:engine/model/writer~Writer} writer An instance of the model writer.\n\t */\n\tpublic setAllowedAttributes(\n\t\tnode: Node,\n\t\tattributes: Record<string, unknown>,\n\t\twriter: Writer\n\t): void {\n\t\tconst model = writer.model;\n\n\t\tfor ( const [ attributeName, attributeValue ] of Object.entries( attributes ) ) {\n\t\t\tif ( model.schema.checkAttribute( node, attributeName ) ) {\n\t\t\t\twriter.setAttribute( attributeName, attributeValue, node );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Removes attributes disallowed by the schema.\n\t *\n\t * @param {Iterable.<module:engine/model/node~Node>} nodes Nodes that will be filtered.\n\t * @param {module:engine/model/writer~Writer} writer\n\t */\n\tpublic removeDisallowedAttributes( nodes: Iterable<Node>, writer: Writer ): void {\n\t\tfor ( const node of nodes ) {\n\t\t\t// When node is a `Text` it has no children, so just filter it out.\n\t\t\tif ( node.is( '$text' ) ) {\n\t\t\t\tremoveDisallowedAttributeFromNode( this, node, writer );\n\t\t\t}\n\t\t\t// In a case of `Element` iterates through positions between nodes inside this element\n\t\t\t// and filter out node before the current position, or position parent when position\n\t\t\t// is at start of an element. Using positions prevent from omitting merged nodes\n\t\t\t// see https://github.com/ckeditor/ckeditor5-engine/issues/1789.\n\t\t\telse {\n\t\t\t\tconst rangeInNode = Range._createIn( node as Element );\n\t\t\t\tconst positionsInRange = rangeInNode.getPositions();\n\n\t\t\t\tfor ( const position of positionsInRange ) {\n\t\t\t\t\tconst item = position.nodeBefore || position.parent;\n\n\t\t\t\t\tremoveDisallowedAttributeFromNode( this, item as any, writer );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Gets attributes of a node that have a given property.\n\t *\n\t * @param {module:engine/model/node~Node} node Node to get attributes from.\n\t * @param {String} propertyName Name of the property that attribute must have to return it.\n\t * @param {Boolean|Symbol|String|Number|Object|null|undefined} propertyValue Desired value of the property that we want to check.\n\t * When `undefined` attributes will be returned if they have set a given property no matter what the value is. If specified it will\n\t * return attributes which given property's value is equal to this parameter.\n\t * @returns {Object} Object with attributes' names as key and attributes' values as value.\n\t */\n\tpublic getAttributesWithProperty( node: Node, propertyName: string, propertyValue: unknown ): Record<string, unknown> {\n\t\tconst attributes: Record<string, unknown> = {};\n\n\t\tfor ( const [ attributeName, attributeValue ] of node.getAttributes() ) {\n\t\t\tconst attributeProperties = this.getAttributeProperties( attributeName );\n\n\t\t\tif ( attributeProperties[ propertyName ] === undefined ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( propertyValue === undefined || propertyValue === attributeProperties[ propertyName ] ) {\n\t\t\t\tattributes[ attributeName ] = attributeValue;\n\t\t\t}\n\t\t}\n\n\t\treturn attributes;\n\t}\n\n\t/**\n\t * Creates an instance of the schema context.\n\t *\n\t * @param {module:engine/model/schema~SchemaContextDefinition} context\n\t * @returns {module:engine/model/schema~SchemaContext}\n\t */\n\tpublic createContext( context: SchemaContextDefinition ): SchemaContext {\n\t\treturn new SchemaContext( context );\n\t}\n\n\t/**\n\t * @private\n\t */\n\tprivate _clearCache(): void {\n\t\tthis._compiledDefinitions = null;\n\t}\n\n\t/**\n\t * @private\n\t */\n\tprivate _compile(): void {\n\t\tconst compiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal> = {};\n\t\tconst sourceRules = this._sourceDefinitions;\n\t\tconst itemNames = Object.keys( sourceRules );\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompiledDefinitions[ itemName ] = compileBaseItemRule( sourceRules[ itemName ], itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowChildren( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowContentOf( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowWhere( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowAttributesOf( compiledDefinitions, itemName );\n\t\t\tcompileInheritPropertiesFrom( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcleanUpAllowIn( compiledDefinitions, itemName );\n\t\t\tsetupAllowChildren( compiledDefinitions, itemName );\n\t\t\tcleanUpAllowAttributes( compiledDefinitions, itemName );\n\t\t}\n\n\t\tthis._compiledDefinitions = compiledDefinitions as any;\n\t}\n\n\t/**\n\t * @private\n\t * @param {module:engine/model/schema~SchemaCompiledItemDefinition} def\n\t * @param {module:engine/model/schema~SchemaContext} context\n\t * @param {Number} contextItemIndex\n\t */\n\tprivate _checkContextMatch(\n\t\tdef: SchemaCompiledItemDefinition,\n\t\tcontext: SchemaContext,\n\t\tcontextItemIndex: number = context.length - 1\n\t): boolean {\n\t\tconst contextItem = context.getItem( contextItemIndex );\n\n\t\tif ( def.allowIn.includes( contextItem.name ) ) {\n\t\t\tif ( contextItemIndex == 0 ) {\n\t\t\t\treturn true;\n\t\t\t} else {\n\t\t\t\tconst parentRule = this.getDefinition( contextItem );\n\n\t\t\t\treturn this._checkContextMatch( parentRule!, context, contextItemIndex - 1 );\n\t\t\t}\n\t\t} else {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\t/**\n\t * Takes a flat range and an attribute name. Traverses the range recursively and deeply to find and return all ranges\n\t * inside the given range on which the attribute can be applied.\n\t *\n\t * This is a helper function for {@link ~Schema#getValidRanges}.\n\t *\n\t * @private\n\t * @param {module:engine/model/range~Range} range The range to process.\n\t * @param {String} attribute The name of the attribute to check.\n\t * @returns {Iterable.<module:engine/model/range~Range>} Ranges in which the attribute is allowed.\n\t */\n\tprivate* _getValidRangesForRange( range: Range, attribute: string ): Iterable<Range> {\n\t\tlet start = range.start;\n\t\tlet end = range.start;\n\n\t\tfor ( const item of range.getItems( { shallow: true } ) ) {\n\t\t\tif ( item.is( 'element' ) ) {\n\t\t\t\tyield* this._getValidRangesForRange( Range._createIn( item ), attribute );\n\t\t\t}\n\n\t\t\tif ( !this.checkAttribute( item, attribute ) ) {\n\t\t\t\tif ( !start.isEqual( end ) ) {\n\t\t\t\t\tyield new Range( start, end );\n\t\t\t\t}\n\n\t\t\t\tstart = Position._createAfter( item );\n\t\t\t}\n\n\t\t\tend = Position._createAfter( item );\n\t\t}\n\n\t\tif ( !start.isEqual( end ) ) {\n\t\t\tyield new Range( start, end );\n\t\t}\n\t}\n}\n\n/**\n * Event fired when the {@link #checkChild} method is called. It allows plugging in\n * additional behavior, for example implementing rules which cannot be defined using the declarative\n * {@link module:engine/model/schema~SchemaItemDefinition} interface.\n *\n * **Note:** The {@link #addChildCheck} method is a more handy way to register callbacks. Internally,\n * it registers a listener to this event but comes with a simpler API and it is the recommended choice\n * in most of the cases.\n *\n * The {@link #checkChild} method fires an event because it is\n * {@link module:utils/observablemixin~ObservableMixin#decorate decorated} with it. Thanks to that you can\n * use this event in various ways, but the most important use case is overriding standard behavior of the\n * `checkChild()` method. Let's see a typical listener template:\n *\n *\t\tschema.on( 'checkChild', ( evt, args ) => {\n *\t\t\tconst context = args[ 0 ];\n *\t\t\tconst childDefinition = args[ 1 ];\n *\t\t}, { priority: 'high' } );\n *\n * The listener is added with a `high` priority to be executed before the default method is really called. The `args` callback\n * parameter contains arguments passed to `checkChild( context, child )`. However, the `context` parameter is already\n * normalized to a {@link module:engine/model/schema~SchemaContext} instance and `child` to a\n * {@link module:engine/model/schema~SchemaCompiledItemDefinition} instance, so you do not have to worry about\n * the various ways how `context` and `child` may be passed to `checkChild()`.\n *\n * **Note:** `childDefinition` may be `undefined` if `checkChild()` was called with a non-registered element.\n *\n * So, in order to implement a rule \"disallow `heading1` in `blockQuote`\", you can add such a listener:\n *\n *\t\tschema.on( 'checkChild', ( evt, args ) => {\n *\t\t\tconst context = args[ 0 ];\n *\t\t\tconst childDefinition = args[ 1 ];\n *\n *\t\t\tif ( context.endsWith( 'blockQuote' ) && childDefinition && childDefinition.name == 'heading1' ) {\n *\t\t\t\t// Prevent next listeners from being called.\n *\t\t\t\tevt.stop();\n *\t\t\t\t// Set the checkChild()'s return value.\n *\t\t\t\tevt.return = false;\n *\t\t\t}\n *\t\t}, { priority: 'high' } );\n *\n * Allowing elements in specific contexts will be a far less common use case, because it is normally handled by the\n * `allowIn` rule from {@link module:engine/model/schema~SchemaItemDefinition}. But if you have a complex scenario\n * where `listItem` should be allowed only in element `foo` which must be in element `bar`, then this would be the way:\n *\n *\t\tschema.on( 'checkChild', ( evt, args ) => {\n *\t\t\tconst context = args[ 0 ];\n *\t\t\tconst childDefinition = args[ 1 ];\n *\n *\t\t\tif ( context.endsWith( 'bar foo' ) && childDefinition.name == 'listItem' ) {\n *\t\t\t\t// Prevent next listeners from being called.\n *\t\t\t\tevt.stop();\n *\t\t\t\t// Set the checkChild()'s return value.\n *\t\t\t\tevt.return = true;\n *\t\t\t}\n *\t\t}, { priority: 'high' } );\n *\n * @event checkChild\n * @param {Array} args The `checkChild()`'s arguments.\n */\nexport type SchemaCheckChildEvent = {\n\tname: 'checkChild';\n\targs: [ [ context: SchemaContext, def: SchemaCompiledItemDefinition ] ];\n};\n\n/**\n * Event fired when the {@link #checkAttribute} method is called. It allows plugging in\n * additional behavior, for example implementing rules which cannot be defined using the declarative\n * {@link module:engine/model/schema~SchemaItemDefinition} interface.\n *\n * **Note:** The {@link #addAttributeCheck} method is a more handy way to register callbacks. Internally,\n * it registers a listener to this event but comes with a simpler API and it is the recommended choice\n * in most of the cases.\n *\n * The {@link #checkAttribute} method fires an event because it is\n * {@link module:utils/observablemixin~ObservableMixin#decorate decorated} with it. Thanks to that you can\n * use this event in various ways, but the most important use case is overriding the standard behavior of the\n * `checkAttribute()` method. Let's see a typical listener template:\n *\n *\t\tschema.on( 'checkAttribute', ( evt, args ) => {\n *\t\t\tconst context = args[ 0 ];\n *\t\t\tconst attributeName = args[ 1 ];\n *\t\t}, { priority: 'high' } );\n *\n * The listener is added with a `high` priority to be executed before the default method is really called. The `args` callback\n * parameter contains arguments passed to `checkAttribute( context, attributeName )`. However, the `context` parameter is already\n * normalized to a {@link module:engine/model/schema~SchemaContext} instance, so you do not have to worry about\n * the various ways how `context` may be passed to `checkAttribute()`.\n *\n * So, in order to implement a rule \"disallow `bold` in a text which is in a `heading1`, you can add such a listener:\n *\n *\t\tschema.on( 'checkAttribute', ( evt, args ) => {\n *\t\t\tconst context = args[ 0 ];\n *\t\t\tconst attributeName = args[ 1 ];\n *\n *\t\t\tif ( context.endsWith( 'heading1 $text' ) && attributeName == 'bold' ) {\n *\t\t\t\t// Prevent next listeners from being called.\n *\t\t\t\tevt.stop();\n *\t\t\t\t// Set the checkAttribute()'s return value.\n *\t\t\t\tevt.return = false;\n *\t\t\t}\n *\t\t}, { priority: 'high' } );\n *\n * Allowing attributes in specific contexts will be a far less common use case, because it is normally handled by the\n * `allowAttributes` rule from {@link module:engine/model/schema~SchemaItemDefinition}. But if you have a complex scenario\n * where `bold` should be allowed only in element `foo` which must be in element `bar`, then this would be the way:\n *\n *\t\tschema.on( 'checkAttribute', ( evt, args ) => {\n *\t\t\tconst context = args[ 0 ];\n *\t\t\tconst attributeName = args[ 1 ];\n *\n *\t\t\tif ( context.endsWith( 'bar foo $text' ) && attributeName == 'bold' ) {\n *\t\t\t\t// Prevent next listeners from being called.\n *\t\t\t\tevt.stop();\n *\t\t\t\t// Set the checkAttribute()'s return value.\n *\t\t\t\tevt.return = true;\n *\t\t\t}\n *\t\t}, { priority: 'high' } );\n *\n * @event checkAttribute\n * @param {Array} args The `checkAttribute()`'s arguments.\n */\nexport type SchemaCheckAttributeEvent = {\n\tname: 'checkAttribute';\n\targs: [ [ context: SchemaContext, attributeName: string ] ];\n};\n\n/**\n * A definition of a {@link module:engine/model/schema~Schema schema} item.\n *\n * You can define the following rules:\n *\n * * {@link ~SchemaItemDefinition#allowIn `allowIn`} &ndash; Defines in which other items this item will be allowed.\n * * {@link ~SchemaItemDefinition#allowChildren `allowChildren`} &ndash; Defines which other items are allowed inside this item.\n * * {@link ~SchemaItemDefinition#allowAttributes `allowAttributes`} &ndash; Defines allowed attributes of the given item.\n * * {@link ~SchemaItemDefinition#allowContentOf `allowContentOf`} &ndash; Inherits \"allowed children\" from other items.\n * * {@link ~SchemaItemDefinition#allowWhere `allowWhere`} &ndash; Inherits \"allowed in\" from other items.\n * * {@link ~SchemaItemDefinition#allowAttributesOf `allowAttributesOf`} &ndash; Inherits attributes from other items.\n * * {@link ~SchemaItemDefinition#inheritTypesFrom `inheritTypesFrom`} &ndash; Inherits `is*` properties of other items.\n * * {@link ~SchemaItemDefinition#inheritAllFrom `inheritAllFrom`} &ndash;\n * A shorthand for `allowContentOf`, `allowWhere`, `allowAttributesOf`, `inheritTypesFrom`.\n *\n * # The `is*` properties\n *\n * There are a couple commonly used `is*` properties. Their role is to assign additional semantics to schema items.\n * You can define more properties but you will also need to implement support for them in the existing editor features.\n *\n * * {@link ~SchemaItemDefinition#isBlock `isBlock`} &ndash; Whether this item is paragraph-like.\n * Generally speaking, content is usually made out of blocks like paragraphs, list items, images, headings, etc.\n * * {@link ~SchemaItemDefinition#isInline `isInline`} &ndash; Whether an item is \"text-like\" and should be treated as an inline node.\n * Examples of inline elements: `$text`, `softBreak` (`<br>`), etc.\n * * {@link ~SchemaItemDefinition#isLimit `isLimit`} &ndash; It can be understood as whether this element\n * should not be split by <kbd>Enter</kbd>. Examples of limit elements: `$root`, table cell, image caption, etc.\n * In other words, all actions that happen inside a limit element are limited to its content.\n * All objects are treated as limit elements, too.\n * * {@link ~SchemaItemDefinition#isObject `isObject`} &ndash; Whether an item is \"self-contained\" and should be treated as a whole.\n * Examples of object elements: `imageBlock`, `table`, `video`, etc. An object is also a limit, so\n * {@link module:engine/model/schema~Schema#isLimit `isLimit()`} returns `true` for object elements automatically.\n *\n * Read more about the meaning of these types in the\n * {@glink framework/guides/deep-dive/schema#defining-additional-semantics dedicated section of the Schema deep-dive guide}.\n *\n * # Generic items\n *\n * There are several generic items (classes of elements) available: `$root`, `$container`, `$block`, `$blockObject`,\n * `$inlineObject`, and `$text`. They are defined as follows:\n *\n *\t\tschema.register( '$root', {\n *\t\t\tisLimit: true\n *\t\t} );\n *\n *\t\tschema.register( '$container', {\n *\t\t\tallowIn: [ '$root', '$container' ]\n *\t\t} );\n *\n *\t\tschema.register( '$block', {\n *\t\t\tallowIn: [ '$root', '$container' ],\n *\t\t\tisBlock: true\n *\t\t} );\n *\n *\t\tschema.register( '$blockObject', {\n *\t\t\tallowWhere: '$block',\n *\t\t\tisBlock: true,\n *\t\t\tisObject: true\n *\t\t} );\n *\n *\t\tschema.register( '$inlineObject', {\n *\t\t\tallowWhere: '$text',\n *\t\t\tallowAttributesOf: '$text',\n *\t\t\tisInline: true,\n *\t\t\tisObject: true\n *\t\t} );\n *\n *\t\tschema.register( '$text', {\n *\t\t\tallowIn: '$block',\n *\t\t\tisInline: true,\n *\t\t\tisContent: true\n *\t\t} );\n *\n * They reflect typical editor content that is contained within one root, consists of several blocks\n * (paragraphs, lists items, headings, images) which, in turn, may contain text inside.\n *\n * By inheriting from the generic items you can define new items which will get extended by other editor features.\n * Read more about generic types in the {@glink framework/guides/deep-dive/schema Schema deep-dive guide}.\n *\n * # Example definitions\n *\n * Allow `paragraph` in roots and block quotes:\n *\n *\t\tschema.register( 'paragraph', {\n *\t\t\tallowIn: [ '$root', 'blockQuote' ],\n *\t\t\tisBlock: true\n *\t\t} );\n *\n * Allow `paragraph` everywhere where `$block` is allowed (i.e. in `$root`):\n *\n *\t\tschema.register( 'paragraph', {\n *\t\t\tallowWhere: '$block',\n *\t\t\tisBlock: true\n *\t\t} );\n *\n * Allow `paragraph` inside a `$root` and allow `$text` as a `paragraph` child:\n *\n *\t\tschema.register( 'paragraph', {\n *\t\t\tallowIn: '$root',\n *\t\t\tallowChildren: '$text',\n *\t\t\tisBlock: true\n *\t\t} );\n *\n * The previous rule can be written in a shorter form using inheritance:\n *\n *\t\tschema.register( 'paragraph', {\n *\t\t\tinheritAllFrom: '$block'\n *\t\t} );\n *\n * Make `imageBlock` a block object, which is allowed everywhere where `$block` is.\n * Also, allow `src` and `alt` attributes in it:\n *\n *\t\tschema.register( 'imageBlock', {\n *\t\t\tinheritAllFrom: '$blockObject',\n *\t\t\tallowAttributes: [ 'src', 'alt' ],\n *\t\t} );\n *\n * Make `caption` allowed in `imageBlock` and make it allow all the content of `$block`s (usually, `$text`).\n * Also, mark it as a limit element so it cannot be split:\n *\n *\t\tschema.register( 'caption', {\n *\t\t\tallowIn: 'imageBlock',\n *\t\t\tallowContentOf: '$block',\n *\t\t\tisLimit: true\n *\t\t} );\n *\n * Make `listItem` inherit all from `$block` but also allow additional attributes:\n *\n *\t\tschema.register( 'listItem', {\n *\t\t\tinheritAllFrom: '$block',\n *\t\t\tallowAttributes: [ 'listType', 'listIndent' ]\n *\t\t} );\n *\n * Which translates to:\n *\n *\t\tschema.register( 'listItem', {\n *\t\t\tallowWhere: '$block',\n *\t\t\tallowContentOf: '$block',\n *\t\t\tallowAttributesOf: '$block',\n *\t\t\tinheritTypesFrom: '$block',\n *\t\t\tallowAttributes: [ 'listType', 'listIndent' ]\n *\t\t} );\n *\n * # Tips\n *\n * * Check schema definitions of existing features to see how they are defined.\n * * If you want to publish your feature so other developers can use it, try to use\n * generic items as much as possible.\n * * Keep your model clean. Limit it to the actual data and store information in a normalized way.\n * * Remember about defining the `is*` properties. They do not affect the allowed structures, but they can\n * affect how the editor features treat your elements.\n *\n * @typedef {Object} module:engine/model/schema~SchemaItemDefinition\n *\n * @property {String|Array.<String>} allowIn Defines in which other items this item will be allowed.\n * @property {String|Array.<String>} allowChildren Defines which other items are allowed inside this item.\n * @property {String|Array.<String>} allowAttributes Defines allowed attributes of the given item.\n * @property {String|Array.<String>} allowContentOf Inherits \"allowed children\" from other items.\n * @property {String|Array.<String>} allowWhere Inherits \"allowed in\" from other items.\n * @property {String|Array.<String>} allowAttributesOf Inherits attributes from other items.\n * @property {String|Array.<String>} inheritTypesFrom Inherits `is*` properties of other items.\n * @property {String} inheritAllFrom A shorthand for `allowContentOf`, `allowWhere`, `allowAttributesOf`, `inheritTypesFrom`.\n *\n * @property {Boolean} isBlock\n * Whether this item is paragraph-like. Generally speaking, content is usually made out of blocks\n * like paragraphs, list items, images, headings, etc. All these elements are marked as blocks. A block\n * should not allow another block inside. Note: There is also the `$block` generic item which has `isBlock` set to `true`.\n * Most block type items will inherit from `$block` (through `inheritAllFrom`).\n *\n * Read more about the block elements in the\n * {@glink framework/guides/deep-dive/schema#block-elements Block elements section} of\n * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide}.\n *\n * @property {Boolean} isInline\n * Whether an item is \"text-like\" and should be treated as an inline node. Examples of inline elements:\n * `$text`, `softBreak` (`<br>`), etc.\n *\n * Read more about the inline elements in the\n * {@glink framework/guides/deep-dive/schema#inline-elements Inline elements section} of the Schema deep-dive guide.\n *\n * @property {Boolean} isLimit\n * It can be understood as whether this element should not be split by <kbd>Enter</kbd>.\n * Examples of limit elements: `$root`, table cell, image caption, etc. In other words, all actions that happen inside\n * a limit element are limited to its content.\n *\n * Read more about the limit elements in the\n * {@glink framework/guides/deep-dive/schema#limit-elements Limit elements section} of\n * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide}.\n *\n * @property {Boolean} isObject\n * Whether an item is \"self-contained\" and should be treated as a whole. Examples of object elements:\n * `imageBlock`, `table`, `video`, etc.\n *\n * **Note:** An object is also a limit, so\n * {@link module:engine/model/schema~Schema#isLimit `isLimit()`} returns `true` for object elements automatically.\n *\n * Read more about the object elements in the\n * {@glink framework/guides/deep-dive/schema#object-elements Object elements section} of the Schema deep-dive guide.\n *\n * @property {Boolean} isSelectable\n * `true` when an element should be selectable as a whole by the user. Examples of selectable elements: `imageBlock`, `table`, `tableCell`,\n * etc.\n *\n * **Note:** An object is also a selectable element, so\n * {@link module:engine/model/schema~Schema#isSelectable `isSelectable()`} returns `true` for object elements automatically.\n *\n * Read more about selectable elements in the\n * {@glink framework/guides/deep-dive/schema#selectable-elements Selectable elements section} of\n * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide}.\n *\n * @property {Boolean} isContent\n * An item is a content when it always finds its way to the editor data output regardless of the number and type of its descendants.\n * Examples of content elements: `$text`, `imageBlock`, `table`, etc. (but not `paragraph`, `heading1` or `tableCell`).\n *\n * **Note:** An object is also a content element, so\n * {@link module:engine/model/schema~Schema#isContent `isContent()`} returns `true` for object elements automatically.\n *\n * Read more about content elements in the\n * {@glink framework/guides/deep-dive/schema#content-elements Content elements section} of\n * the {@glink framework/guides/deep-dive/schema Schema deep-dive guide}.\n */\n\nexport interface SchemaItemDefinition {\n\tallowIn?: string | Array<string>;\n\tallowChildren?: string | Array<string>;\n\tallowAttributes?: string | Array<string>;\n\tallowContentOf?: string | Array<string>;\n\tallowWhere?: string | Array<string>;\n\tallowAttributesOf?: string | Array<string>;\n\tinheritTypesFrom?: string | Array<string>;\n\tinheritAllFrom?: string;\n\tisBlock?: boolean;\n\tisInline?: boolean;\n\tisLimit?: boolean;\n\tisObject?: boolean;\n\tisSelectable?: boolean;\n\tisContent?: boolean;\n}\n\n/**\n * A simplified version of {@link module:engine/model/schema~SchemaItemDefinition} after\n * compilation by the {@link module:engine/model/schema~Schema schema}.\n * Rules fed to the schema by {@link module:engine/model/schema~Schema#register}\n * and {@link module:engine/model/schema~Schema#extend} methods are defined in the\n * {@link module:engine/model/schema~SchemaItemDefinition} format.\n * Later on, they are compiled to `SchemaCompiledItemDefinition` so when you use e.g.\n * the {@link module:engine/model/schema~Schema#getDefinition} method you get the compiled version.\n *\n * The compiled version contains only the following properties:\n *\n * * The `name` property,\n * * The `is*` properties,\n * * The `allowIn` array,\n * * The `allowChildren` array,\n * * The `allowAttributes` array.\n *\n * @typedef {Object} module:engine/model/schema~SchemaCompiledItemDefinition\n */\n\nexport interface SchemaCompiledItemDefinition {\n\tname: string;\n\tisBlock: boolean;\n\tisContent: boolean;\n\tisInline: boolean;\n\tisLimit: boolean;\n\tisObject: boolean;\n\tisSelectable: boolean;\n\tallowIn: Array<string>;\n\tallowChildren: Array<string>;\n\tallowAttributes: Array<string>;\n}\n\ninterface SchemaCompiledItemDefinitionInternal {\n\tname: string;\n\n\tisBlock?: boolean;\n\tisContent?: boolean;\n\tisInline?: boolean;\n\tisLimit?: boolean;\n\tisObject?: boolean;\n\tisSelectable?: boolean;\n\n\tallowIn: Array<string>;\n\tallowChildren: Array<string>;\n\tallowAttributes: Array<string>;\n\n\tallowAttributesOf?: Array<string>;\n\tallowContentOf?: Array<string>;\n\tallowWhere?: Array<string>;\n\tinheritTypesFrom?: Array<string>;\n}\n\ntype TypeNames = Array<'isBlock' | 'isContent' | 'isInline' | 'isLimit' | 'isObject' | 'isSelectable'>;\n\n/**\n * A schema context &mdash; a list of ancestors of a given position in the document.\n *\n * Considering such position:\n *\n *\t\t<$root>\n *\t\t\t<blockQuote>\n *\t\t\t\t<paragraph>\n *\t\t\t\t\t^\n *\t\t\t\t</paragraph>\n *\t\t\t</blockQuote>\n *\t\t</$root>\n *\n * The context of this position is its {@link module:engine/model/position~Position#getAncestors lists of ancestors}:\n *\n *\t\t[ rootElement, blockQuoteElement, paragraphElement ]\n *\n * Contexts are used in the {@link module:engine/model/schema~Schema#event:checkChild `Schema#checkChild`} and\n * {@link module:engine/model/schema~Schema#event:checkAttribute `Schema#checkAttribute`} events as a definition\n * of a place in the document where the check occurs. The context instances are created based on the first arguments\n * of the {@link module:engine/model/schema~Schema#checkChild `Schema#checkChild()`} and\n * {@link module:engine/model/schema~Schema#checkAttribute `Schema#checkAttribute()`} methods so when\n * using these methods you need to use {@link module:engine/model/schema~SchemaContextDefinition}s.\n */\nexport class SchemaContext implements Iterable<SchemaContextItem> {\n\tprivate _items!: Array<SchemaContextItem>;\n\n\t/**\n\t * Creates an instance of the context.\n\t *\n\t * @param {module:engine/model/schema~SchemaContextDefinition} context\n\t */\n\tconstructor( context: SchemaContextDefinition ) {\n\t\tif ( context instanceof SchemaContext ) {\n\t\t\treturn context;\n\t\t}\n\n\t\tlet items: Array<string | Item | DocumentFragment>;\n\n\t\tif ( typeof context == 'string' ) {\n\t\t\titems = [ context ];\n\t\t} else if ( !Array.isArray( context ) ) {\n\t\t\t// `context` is item or position.\n\t\t\t// Position#getAncestors() doesn't accept any parameters but it works just fine here.\n\t\t\titems = context.getAncestors( { includeSelf: true } );\n\t\t} else {\n\t\t\titems = context;\n\t\t}\n\n\t\tthis._items = items.map( mapContextItem );\n\t}\n\n\t/**\n\t * The number of items.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get length(): number {\n\t\treturn this._items.length;\n\t}\n\n\t/**\n\t * The last item (the lowest node).\n\t *\n\t * @type {module:engine/model/schema~SchemaContextItem}\n\t */\n\tpublic get last(): SchemaContextItem {\n\t\treturn this._items[ this._items.length - 1 ]!;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all context items.\n\t *\n\t * @returns {Iterable.<module:engine/model/schema~SchemaContextItem>}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<SchemaContextItem> {\n\t\treturn this._items[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns a new schema context instance with an additional item.\n\t *\n\t * Item can be added as:\n\t *\n\t * \t\tconst context = new SchemaContext( [ '$root' ] );\n\t *\n\t * \t\t// An element.\n\t * \t\tconst fooElement = writer.createElement( 'fooElement' );\n\t * \t\tconst newContext = context.push( fooElement ); // [ '$root', 'fooElement' ]\n\t *\n\t * \t\t// A text node.\n\t * \t\tconst text = writer.createText( 'foobar' );\n\t * \t\tconst newContext = context.push( text ); // [ '$root', '$text' ]\n\t *\n\t * \t\t// A string (element name).\n\t * \t\tconst newContext = context.push( 'barElement' ); // [ '$root', 'barElement' ]\n\t *\n\t * **Note** {@link module:engine/model/node~Node} that is already in the model tree will be added as the only item\n\t * (without ancestors).\n\t *\n\t * @param {String|module:engine/model/node~Node} item An item that will be added\n\t * to the current context.\n\t * @returns {module:engine/model/schema~SchemaContext} A new schema context instance with an additional item.\n\t */\n\tpublic push( item: string | Node ): SchemaContext {\n\t\tconst ctx = new SchemaContext( [ item ] );\n\n\t\tctx._items = [ ...this._items, ...ctx._items ];\n\n\t\treturn ctx;\n\t}\n\n\t/**\n\t * Gets an item on the given index.\n\t *\n\t * @returns {module:engine/model/schema~SchemaContextItem}\n\t */\n\tpublic getItem( index: number ): SchemaContextItem {\n\t\treturn this._items[ index ];\n\t}\n\n\t/**\n\t * Returns the names of items.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic* getNames(): IterableIterator<string> {\n\t\tyield* this._items.map( item => item.name );\n\t}\n\n\t/**\n\t * Checks whether the context ends with the given nodes.\n\t *\n\t *\t\tconst ctx = new SchemaContext( [ rootElement, paragraphElement, textNode ] );\n\t *\n\t *\t\tctx.endsWith( '$text' ); // -> true\n\t *\t\tctx.endsWith( 'paragraph $text' ); // -> true\n\t *\t\tctx.endsWith( '$root' ); // -> false\n\t *\t\tctx.endsWith( 'paragraph' ); // -> false\n\t *\n\t * @param {String} query\n\t * @returns {Boolean}\n\t */\n\tpublic endsWith( query: string ): boolean {\n\t\treturn Array.from( this.getNames() ).join( ' ' ).endsWith( query );\n\t}\n\n\t/**\n\t * Checks whether the context starts with the given nodes.\n\t *\n\t *\t\tconst ctx = new SchemaContext( [ rootElement, paragraphElement, textNode ] );\n\t *\n\t *\t\tctx.endsWith( '$root' ); // -> true\n\t *\t\tctx.endsWith( '$root paragraph' ); // -> true\n\t *\t\tctx.endsWith( '$text' ); // -> false\n\t *\t\tctx.endsWith( 'paragraph' ); // -> false\n\t *\n\t * @param {String} query\n\t * @returns {Boolean}\n\t */\n\tpublic startsWith( query: string ): boolean {\n\t\treturn Array.from( this.getNames() ).join( ' ' ).startsWith( query );\n\t}\n}\n\n/**\n * The definition of a {@link module:engine/model/schema~SchemaContext schema context}.\n *\n * Contexts can be created in multiple ways:\n *\n * * By defining a **node** – in this cases this node and all its ancestors will be used.\n * * By defining a **position** in the document – in this case all its ancestors will be used.\n * * By defining an **array of nodes** – in this case this array defines the entire context.\n * * By defining a **name of node** - in this case node will be \"mocked\". It is not recommended because context\n * will be unrealistic (e.g. attributes of these nodes are not specified). However, at times this may be the only\n * way to define the context (e.g. when checking some hypothetical situation).\n * * By defining an **array of node names** (potentially, mixed with real nodes) – The same as **name of node**\n * but it is possible to create a path.\n * * By defining a {@link module:engine/model/schema~SchemaContext} instance - in this case the same instance as provided\n * will be return.\n *\n * Examples of context definitions passed to the {@link module:engine/model/schema~Schema#checkChild `Schema#checkChild()`}\n * method:\n *\n *\t\t// Assuming that we have a $root > blockQuote > paragraph structure, the following code\n *\t\t// will check node 'foo' in the following context:\n *\t\t// [ rootElement, blockQuoteElement, paragraphElement ]\n *\t\tconst contextDefinition = paragraphElement;\n * \t\tconst childToCheck = 'foo';\n *\t\tschema.checkChild( contextDefinition, childToCheck );\n *\n *\t\t// Also check in [ rootElement, blockQuoteElement, paragraphElement ].\n *\t\tschema.checkChild( model.createPositionAt( paragraphElement, 0 ), 'foo' );\n *\n *\t\t// Check in [ rootElement, paragraphElement ].\n *\t\tschema.checkChild( [ rootElement, paragraphElement ], 'foo' );\n *\n *\t\t// Check only fakeParagraphElement.\n *\t\tschema.checkChild( 'paragraph', 'foo' );\n *\n *\t\t// Check in [ fakeRootElement, fakeBarElement, paragraphElement ].\n *\t\tschema.checkChild( [ '$root', 'bar', paragraphElement ], 'foo' );\n *\n * All these `checkChild()` calls will fire {@link module:engine/model/schema~Schema#event:checkChild `Schema#checkChild`}\n * events in which `args[ 0 ]` is an instance of the context. Therefore, you can write a listener like this:\n *\n *\t\tschema.on( 'checkChild', ( evt, args ) => {\n *\t\t\tconst ctx = args[ 0 ];\n *\n *\t\t\tconsole.log( Array.from( ctx.getNames() ) );\n *\t\t} );\n *\n * Which will log the following:\n *\n *\t\t[ '$root', 'blockQuote', 'paragraph' ]\n *\t\t[ '$root', 'paragraph' ]\n *\t\t[ '$root', 'bar', 'paragraph' ]\n *\n * Note: When using the {@link module:engine/model/schema~Schema#checkAttribute `Schema#checkAttribute()`} method\n * you may want to check whether a text node may have an attribute. A {@link module:engine/model/text~Text} is a\n * correct way to define a context so you can do this:\n *\n *\t\tschema.checkAttribute( textNode, 'bold' );\n *\n * But sometimes you want to check whether a text at a given position might've had some attribute,\n * in which case you can create a context by mixing in an array of elements with a `'$text'` string:\n *\n *\t\t// Check in [ rootElement, paragraphElement, textNode ].\n *\t\tschema.checkChild( [ ...positionInParagraph.getAncestors(), '$text' ], 'bold' );\n *\n * @typedef {module:engine/model/node~Node|module:engine/model/position~Position|module:engine/model/schema~SchemaContext|\n * String|Array.<String|module:engine/model/node~Node>} module:engine/model/schema~SchemaContextDefinition\n */\n\nexport type SchemaContextDefinition = Item | Position | SchemaContext | string | Array<string | Item>;\n\n/**\n * An item of the {@link module:engine/model/schema~SchemaContext schema context}.\n *\n * It contains 3 properties:\n *\n * * `name` – the name of this item,\n * * `* getAttributeKeys()` – a generator of keys of item attributes,\n * * `getAttribute( keyName )` – a method to get attribute values.\n *\n * The context item interface is a highly simplified version of {@link module:engine/model/node~Node} and its role\n * is to expose only the information which schema checks are able to provide (which is the name of the node and\n * node's attributes).\n *\n *\t\tschema.on( 'checkChild', ( evt, args ) => {\n *\t\t\tconst ctx = args[ 0 ];\n *\t\t\tconst firstItem = ctx.getItem( 0 );\n *\n *\t\t\tconsole.log( firstItem.name ); // -> '$root'\n *\t\t\tconsole.log( firstItem.getAttribute( 'foo' ) ); // -> 'bar'\n *\t\t\tconsole.log( Array.from( firstItem.getAttributeKeys() ) ); // -> [ 'foo', 'faa' ]\n *\t\t} );\n *\n * @typedef {Object} module:engine/model/schema~SchemaContextItem\n */\n\ninterface SchemaContextItem {\n\tname: string;\n\tgetAttributeKeys(): Generator<string>;\n\tgetAttribute( keyName: string ): unknown;\n}\n\n/**\n * A structure containing additional metadata describing the attribute.\n *\n * See {@link module:engine/model/schema~Schema#setAttributeProperties `Schema#setAttributeProperties()`} for usage examples.\n *\n * @typedef {Object} module:engine/model/schema~AttributeProperties\n * @property {Boolean} [isFormatting] Indicates that the attribute should be considered as a visual formatting, like `bold`, `italic` or\n * `fontSize` rather than semantic attribute (such as `src`, `listType`, etc.). For example, it is used by the \"Remove format\" feature.\n * @property {Boolean} [copyOnEnter] Indicates that given text attribute should be copied to the next block when enter is pressed.\n */\n\nexport interface AttributeProperties {\n\tisFormatting?: boolean;\n\tcopyOnEnter?: boolean;\n\n\t[ name: string ]: unknown;\n}\n\nfunction compileBaseItemRule( sourceItemRules: Array<SchemaItemDefinition>, itemName: string ): SchemaCompiledItemDefinitionInternal {\n\tconst itemRule = {\n\t\tname: itemName,\n\n\t\tallowIn: [],\n\t\tallowContentOf: [],\n\t\tallowWhere: [],\n\n\t\tallowAttributes: [],\n\t\tallowAttributesOf: [],\n\n\t\tallowChildren: [],\n\n\t\tinheritTypesFrom: []\n\t};\n\n\tcopyTypes( sourceItemRules, itemRule );\n\n\tcopyProperty( sourceItemRules, itemRule, 'allowIn' );\n\tcopyProperty( sourceItemRules, itemRule, 'allowContentOf' );\n\tcopyProperty( sourceItemRules, itemRule, 'allowWhere' );\n\n\tcopyProperty( sourceItemRules, itemRule, 'allowAttributes' );\n\tcopyProperty( sourceItemRules, itemRule, 'allowAttributesOf' );\n\n\tcopyProperty( sourceItemRules, itemRule, 'allowChildren' );\n\n\tcopyProperty( sourceItemRules, itemRule, 'inheritTypesFrom' );\n\n\tmakeInheritAllWork( sourceItemRules, itemRule );\n\n\treturn itemRule;\n}\n\nfunction compileAllowChildren(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst item = compiledDefinitions[ itemName ];\n\n\tfor ( const allowChildrenItem of item.allowChildren ) {\n\t\tconst allowedChildren = compiledDefinitions[ allowChildrenItem ];\n\n\t\t// The allowChildren property may point to an unregistered element.\n\t\tif ( !allowedChildren ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tallowedChildren.allowIn.push( itemName );\n\t}\n\n\t// The allowIn property already includes correct items, reset the allowChildren property\n\t// to avoid duplicates later when setting up compilation results.\n\titem.allowChildren.length = 0;\n}\n\nfunction compileAllowContentOf(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tfor ( const allowContentOfItemName of compiledDefinitions[ itemName ].allowContentOf! ) {\n\t\t// The allowContentOf property may point to an unregistered element.\n\t\tif ( compiledDefinitions[ allowContentOfItemName ] ) {\n\t\t\tconst allowedChildren = getAllowedChildren( compiledDefinitions, allowContentOfItemName );\n\n\t\t\tallowedChildren.forEach( allowedItem => {\n\t\t\t\tallowedItem.allowIn.push( itemName );\n\t\t\t} );\n\t\t}\n\t}\n\n\tdelete compiledDefinitions[ itemName ].allowContentOf;\n}\n\nfunction compileAllowWhere(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tfor ( const allowWhereItemName of compiledDefinitions[ itemName ].allowWhere! ) {\n\t\tconst inheritFrom = compiledDefinitions[ allowWhereItemName ];\n\n\t\t// The allowWhere property may point to an unregistered element.\n\t\tif ( inheritFrom ) {\n\t\t\tconst allowedIn = inheritFrom.allowIn;\n\n\t\t\tcompiledDefinitions[ itemName ].allowIn.push( ...allowedIn );\n\t\t}\n\t}\n\n\tdelete compiledDefinitions[ itemName ].allowWhere;\n}\n\nfunction compileAllowAttributesOf(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tfor ( const allowAttributeOfItem of compiledDefinitions[ itemName ].allowAttributesOf! ) {\n\t\tconst inheritFrom = compiledDefinitions[ allowAttributeOfItem ];\n\n\t\tif ( inheritFrom ) {\n\t\t\tconst inheritAttributes = inheritFrom.allowAttributes;\n\n\t\t\tcompiledDefinitions[ itemName ].allowAttributes.push( ...inheritAttributes );\n\t\t}\n\t}\n\n\tdelete compiledDefinitions[ itemName ].allowAttributesOf;\n}\n\nfunction compileInheritPropertiesFrom(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst item = compiledDefinitions[ itemName ];\n\n\tfor ( const inheritPropertiesOfItem of item.inheritTypesFrom! ) {\n\t\tconst inheritFrom = compiledDefinitions[ inheritPropertiesOfItem ];\n\n\t\tif ( inheritFrom ) {\n\t\t\tconst typeNames = Object.keys( inheritFrom ).filter( name => name.startsWith( 'is' ) ) as TypeNames;\n\n\t\t\tfor ( const name of typeNames ) {\n\t\t\t\tif ( !( name in item ) ) {\n\t\t\t\t\titem[ name ] = inheritFrom[ name ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tdelete item.inheritTypesFrom;\n}\n\n// Remove items which weren't registered (because it may break some checks or we'd need to complicate them).\n// Make sure allowIn doesn't contain repeated values.\nfunction cleanUpAllowIn(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\tconst existingItems = itemRule.allowIn.filter( itemToCheck => compiledDefinitions[ itemToCheck ] );\n\n\titemRule.allowIn = Array.from( new Set( existingItems ) );\n}\n\n// Setup allowChildren items based on allowIn.\nfunction setupAllowChildren(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\n\tfor ( const allowedParentItemName of itemRule.allowIn ) {\n\t\tconst allowedParentItem = compiledDefinitions[ allowedParentItemName ];\n\n\t\tallowedParentItem.allowChildren.push( itemName );\n\t}\n}\n\nfunction cleanUpAllowAttributes(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\n\titemRule.allowAttributes = Array.from( new Set( itemRule.allowAttributes ) );\n}\n\nfunction copyTypes( sourceItemRules: Array<SchemaItemDefinition>, itemRule: SchemaCompiledItemDefinitionInternal ) {\n\tfor ( const sourceItemRule of sourceItemRules ) {\n\t\tconst typeNames = Object.keys( sourceItemRule ).filter( name => name.startsWith( 'is' ) ) as TypeNames;\n\n\t\tfor ( const name of typeNames ) {\n\t\t\titemRule[ name ] = !!sourceItemRule[ name ];\n\t\t}\n\t}\n}\n\nfunction copyProperty(\n\tsourceItemRules: Array<SchemaItemDefinition>,\n\titemRule: SchemaCompiledItemDefinitionInternal,\n\tpropertyName: 'allowIn' |\n\t\t'allowContentOf' |\n\t\t'allowWhere' |\n\t\t'allowAttributes' |\n\t\t'allowAttributesOf' |\n\t\t'allowChildren' |\n\t\t'inheritTypesFrom'\n) {\n\tfor ( const sourceItemRule of sourceItemRules ) {\n\t\tconst value = sourceItemRule[ propertyName ];\n\n\t\tif ( typeof value == 'string' ) {\n\t\t\titemRule[ propertyName ]!.push( value );\n\t\t} else if ( Array.isArray( value ) ) {\n\t\t\titemRule[ propertyName ]!.push( ...value );\n\t\t}\n\t}\n}\n\nfunction makeInheritAllWork( sourceItemRules: Array<SchemaItemDefinition>, itemRule: SchemaCompiledItemDefinitionInternal ) {\n\tfor ( const sourceItemRule of sourceItemRules ) {\n\t\tconst inheritFrom = sourceItemRule.inheritAllFrom;\n\n\t\tif ( inheritFrom ) {\n\t\t\titemRule.allowContentOf!.push( inheritFrom );\n\t\t\titemRule.allowWhere!.push( inheritFrom );\n\t\t\titemRule.allowAttributesOf!.push( inheritFrom );\n\t\t\titemRule.inheritTypesFrom!.push( inheritFrom );\n\t\t}\n\t}\n}\n\nfunction getAllowedChildren( compiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>, itemName: string ) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\n\treturn getValues( compiledDefinitions ).filter( def => def.allowIn.includes( itemRule.name ) );\n}\n\nfunction getValues( obj: Record<string, SchemaCompiledItemDefinitionInternal> ) {\n\treturn Object.keys( obj ).map( key => obj[ key ] );\n}\n\nfunction mapContextItem( ctxItem: string | Item | DocumentFragment ): SchemaContextItem {\n\tif ( typeof ctxItem == 'string' || ctxItem.is( 'documentFragment' ) ) {\n\t\treturn {\n\t\t\tname: typeof ctxItem == 'string' ? ctxItem : '$documentFragment',\n\n\t\t\t* getAttributeKeys() {},\n\n\t\t\tgetAttribute() {}\n\t\t};\n\t} else {\n\t\treturn {\n\t\t\t// '$text' means text nodes and text proxies.\n\t\t\tname: ctxItem.is( 'element' ) ? ctxItem.name : '$text',\n\n\t\t\t* getAttributeKeys() {\n\t\t\t\tyield* ctxItem.getAttributeKeys();\n\t\t\t},\n\n\t\t\tgetAttribute( key ) {\n\t\t\t\treturn ctxItem.getAttribute( key );\n\t\t\t}\n\t\t};\n\t}\n}\n\n// Generator function returning values from provided walkers, switching between them at each iteration. If only one walker\n// is provided it will return data only from that walker.\n//\n// @param {module:engine/module/treewalker~TreeWalker} [backward] Walker iterating in backward direction.\n// @param {module:engine/module/treewalker~TreeWalker} [forward] Walker iterating in forward direction.\n// @returns {Iterable.<Object>} Object returned at each iteration contains `value` and `walker` (informing which walker returned\n// given value) fields.\nfunction* combineWalkers( backward: TreeWalker | undefined, forward: TreeWalker | undefined ) {\n\tlet done = false;\n\n\twhile ( !done ) {\n\t\tdone = true;\n\n\t\tif ( backward ) {\n\t\t\tconst step = backward.next();\n\n\t\t\tif ( !step.done ) {\n\t\t\t\tdone = false;\n\t\t\t\tyield {\n\t\t\t\t\twalker: backward,\n\t\t\t\t\tvalue: step.value\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\n\t\tif ( forward ) {\n\t\t\tconst step = forward.next();\n\n\t\t\tif ( !step.done ) {\n\t\t\t\tdone = false;\n\t\t\t\tyield {\n\t\t\t\t\twalker: forward,\n\t\t\t\t\tvalue: step.value\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Takes an array of non-intersecting ranges. For each of them gets minimal flat ranges covering that range and returns\n// all those minimal flat ranges.\n//\n// @param {Array.<module:engine/model/range~Range>} ranges Ranges to process.\n// @returns {Iterable.<module:engine/model/range~Range>} Minimal flat ranges of given `ranges`.\nfunction* convertToMinimalFlatRanges( ranges: Iterable<Range> ): Iterable<Range> {\n\tfor ( const range of ranges ) {\n\t\tyield* range.getMinimalFlatRanges();\n\t}\n}\n\nfunction removeDisallowedAttributeFromNode( schema: Schema, node: Node, writer: Writer ) {\n\tfor ( const attribute of node.getAttributeKeys() ) {\n\t\tif ( !schema.checkAttribute( node, attribute ) ) {\n\t\t\twriter.removeAttribute( attribute, node );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/upcastdispatcher\n */\n\nimport ViewConsumable from './viewconsumable';\nimport ModelRange from '../model/range';\nimport ModelPosition from '../model/position';\nimport type ModelElement from '../model/element';\nimport type ViewElement from '../view/element';\nimport type ViewText from '../view/text';\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type ModelDocumentFragment from '../model/documentfragment';\nimport type { default as Schema, SchemaContextDefinition } from '../model/schema';\nimport { SchemaContext } from '../model/schema'; // eslint-disable-line no-duplicate-imports\nimport type ModelWriter from '../model/writer';\nimport { isParagraphable, wrapInParagraph } from '../model/utils/autoparagraphing';\n\nimport type ViewItem from '../view/item';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Upcast dispatcher is a central point of the view-to-model conversion, which is a process of\n * converting a given {@link module:engine/view/documentfragment~DocumentFragment view document fragment} or\n * {@link module:engine/view/element~Element view element} into a correct model structure.\n *\n * During the conversion process, the dispatcher fires events for all {@link module:engine/view/node~Node view nodes}\n * from the converted view document fragment.\n * Special callbacks called \"converters\" should listen to these events in order to convert the view nodes.\n *\n * The second parameter of the callback is the `data` object with the following properties:\n *\n * * `data.viewItem` contains a {@link module:engine/view/node~Node view node} or a\n * {@link module:engine/view/documentfragment~DocumentFragment view document fragment}\n * that is converted at the moment and might be handled by the callback.\n * * `data.modelRange` is used to point to the result\n * of the current conversion (e.g. the element that is being inserted)\n * and is always a {@link module:engine/model/range~Range} when the conversion succeeds.\n * * `data.modelCursor` is a {@link module:engine/model/position~Position position} on which the converter should insert\n * the newly created items.\n *\n * The third parameter of the callback is an instance of {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi}\n * which provides additional tools for converters.\n *\n * You can read more about conversion in the {@glink framework/guides/deep-dive/conversion/upcast Upcast conversion} guide.\n *\n * Examples of event-based converters:\n *\n *\t\t// A converter for links (<a>).\n *\t\teditor.data.upcastDispatcher.on( 'element:a', ( evt, data, conversionApi ) => {\n *\t\t\tif ( conversionApi.consumable.consume( data.viewItem, { name: true, attributes: [ 'href' ] } ) ) {\n *\t\t\t\t// The <a> element is inline and is represented by an attribute in the model.\n *\t\t\t\t// This is why you need to convert only children.\n *\t\t\t\tconst { modelRange } = conversionApi.convertChildren( data.viewItem, data.modelCursor );\n *\n *\t\t\t\tfor ( let item of modelRange.getItems() ) {\n *\t\t\t\t\tif ( conversionApi.schema.checkAttribute( item, 'linkHref' ) ) {\n *\t\t\t\t\t\tconversionApi.writer.setAttribute( 'linkHref', data.viewItem.getAttribute( 'href' ), item );\n *\t\t\t\t\t}\n *\t\t\t\t}\n *\t\t\t}\n *\t\t} );\n *\n *\t\t// Convert <p> element's font-size style.\n *\t\t// Note: You should use a low-priority observer in order to ensure that\n *\t\t// it is executed after the element-to-element converter.\n *\t\teditor.data.upcastDispatcher.on( 'element:p', ( evt, data, conversionApi ) => {\n *\t\t\tconst { consumable, schema, writer } = conversionApi;\n *\n *\t\t\tif ( !consumable.consume( data.viewItem, { style: 'font-size' } ) ) {\n *\t\t\t\treturn;\n *\t\t\t}\n *\n *\t\t\tconst fontSize = data.viewItem.getStyle( 'font-size' );\n *\n *\t\t\t// Do not go for the model element after data.modelCursor because it might happen\n *\t\t\t// that a single view element was converted to multiple model elements. Get all of them.\n *\t\t\tfor ( const item of data.modelRange.getItems( { shallow: true } ) ) {\n *\t\t\t\tif ( schema.checkAttribute( item, 'fontSize' ) ) {\n *\t\t\t\t\twriter.setAttribute( 'fontSize', fontSize, item );\n *\t\t\t\t}\n *\t\t\t}\n *\t\t}, { priority: 'low' } );\n *\n *\t\t// Convert all elements which have no custom converter into a paragraph (autoparagraphing).\n *\t\teditor.data.upcastDispatcher.on( 'element', ( evt, data, conversionApi ) => {\n *\t\t\t// Check if an element can be converted.\n *\t\t\tif ( !conversionApi.consumable.test( data.viewItem, { name: data.viewItem.name } ) ) {\n *\t\t\t\t// When an element is already consumed by higher priority converters, do nothing.\n *\t\t\t\treturn;\n *\t\t\t}\n *\n *\t\t\tconst paragraph = conversionApi.writer.createElement( 'paragraph' );\n *\n *\t\t\t// Try to safely insert a paragraph at the model cursor - it will find an allowed parent for the current element.\n *\t\t\tif ( !conversionApi.safeInsert( paragraph, data.modelCursor ) ) {\n *\t\t\t\t// When an element was not inserted, it means that you cannot insert a paragraph at this position.\n *\t\t\t\treturn;\n *\t\t\t}\n *\n *\t\t\t// Consume the inserted element.\n *\t\t\tconversionApi.consumable.consume( data.viewItem, { name: data.viewItem.name } ) );\n *\n *\t\t\t// Convert the children to a paragraph.\n *\t\t\tconst { modelRange } = conversionApi.convertChildren( data.viewItem,  paragraph ) );\n *\n *\t\t\t// Update `modelRange` and `modelCursor` in the `data` as a conversion result.\n *\t\t\tconversionApi.updateConversionResult( paragraph, data );\n *\t\t}, { priority: 'low' } );\n *\n * @mixes module:utils/emittermixin~EmitterMixin\n * @fires viewCleanup\n * @fires element\n * @fires text\n * @fires documentFragment\n */\nexport default class UpcastDispatcher extends EmitterMixin() {\n\tpublic conversionApi: UpcastConversionApi;\n\n\tprivate _splitParts: Map<ModelElement, Array<ModelElement>>;\n\tprivate _cursorParents: Map<ModelElement, ModelElement | ModelDocumentFragment>;\n\tprivate _modelCursor: ModelPosition | null;\n\tprivate _emptyElementsToKeep: Set<ModelElement>;\n\n\t/**\n\t * Creates an upcast dispatcher that operates using the passed API.\n\t *\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi\n\t * @param {Object} [conversionApi] Additional properties for an interface that will be passed to events fired\n\t * by the upcast dispatcher.\n\t */\n\tconstructor( conversionApi: Pick<UpcastConversionApi, 'schema'> ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The list of elements that were created during splitting.\n\t\t *\n\t\t * After the conversion process, the list is cleared.\n\t\t *\n\t\t * @private\n\t\t * @type {Map.<module:engine/model/element~Element,Array.<module:engine/model/element~Element>>}\n\t\t */\n\t\tthis._splitParts = new Map();\n\n\t\t/**\n\t\t * The list of cursor parent elements that were created during splitting.\n\t\t *\n\t\t * After the conversion process the list is cleared.\n\t\t *\n\t\t * @private\n\t\t * @type {Map.<module:engine/model/element~Element,Array.<module:engine/model/element~Element>>}\n\t\t */\n\t\tthis._cursorParents = new Map();\n\n\t\t/**\n\t\t * The position in the temporary structure where the converted content is inserted. The structure reflects the context of\n\t\t * the target position where the content will be inserted. This property is built based on the context parameter of the\n\t\t * convert method.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/position~Position|null}\n\t\t */\n\t\tthis._modelCursor = null;\n\n\t\t/**\n\t\t * The list of elements that were created during the splitting but should not get removed on conversion end even if they are empty.\n\t\t *\n\t\t * The list is cleared after the conversion process.\n\t\t *\n\t\t * @private\n\t\t * @type {Set.<module:engine/model/element~Element>}\n\t\t */\n\t\tthis._emptyElementsToKeep = new Set();\n\n\t\t/**\n\t\t * An interface passed by the dispatcher to the event callbacks.\n\t\t *\n\t\t * @member {module:engine/conversion/upcastdispatcher~UpcastConversionApi}\n\t\t */\n\t\tthis.conversionApi = {\n\t\t\t...conversionApi,\n\t\t\tconsumable: null as any,\n\t\t\twriter: null as any,\n\t\t\tstore: null,\n\t\t\tconvertItem: ( viewItem, modelCursor ) => this._convertItem( viewItem, modelCursor ),\n\t\t\tconvertChildren: ( viewElement, positionOrElement ) => this._convertChildren( viewElement, positionOrElement ),\n\t\t\tsafeInsert: ( modelElement, position ) => this._safeInsert( modelElement, position ),\n\t\t\tupdateConversionResult: ( modelElement, data ) => this._updateConversionResult( modelElement, data ),\n\t\t\t// Advanced API - use only if custom position handling is needed.\n\t\t\tsplitToAllowedParent: ( modelElement, modelCursor ) => this._splitToAllowedParent( modelElement, modelCursor ),\n\t\t\tgetSplitParts: modelElement => this._getSplitParts( modelElement ),\n\t\t\tkeepEmptyElement: modelElement => this._keepEmptyElement( modelElement )\n\t\t};\n\t}\n\n\t/**\n\t * Starts the conversion process. The entry point for the conversion.\n\t *\n\t * @fires element\n\t * @fires text\n\t * @fires documentFragment\n\t * @param {module:engine/view/documentfragment~DocumentFragment|module:engine/view/element~Element} viewElement\n\t * The part of the view to be converted.\n\t * @param {module:engine/model/writer~Writer} writer An instance of the model writer.\n\t * @param {module:engine/model/schema~SchemaContextDefinition} [context=['$root']] Elements will be converted according to this context.\n\t * @returns {module:engine/model/documentfragment~DocumentFragment} Model data that is the result of the conversion process\n\t * wrapped in `DocumentFragment`. Converted marker elements will be set as the document fragment's\n\t * {@link module:engine/model/documentfragment~DocumentFragment#markers static markers map}.\n\t */\n\tpublic convert(\n\t\tviewElement: ViewElement | ViewDocumentFragment,\n\t\twriter: ModelWriter,\n\t\tcontext: SchemaContextDefinition = [ '$root' ]\n\t): ModelDocumentFragment {\n\t\tthis.fire<UpcastViewCleanupEvent>( 'viewCleanup', viewElement );\n\n\t\t// Create context tree and set position in the top element.\n\t\t// Items will be converted according to this position.\n\t\tthis._modelCursor = createContextTree( context, writer )!;\n\n\t\t// Store writer in conversion as a conversion API\n\t\t// to be sure that conversion process will use the same batch.\n\t\tthis.conversionApi.writer = writer;\n\n\t\t// Create consumable values list for conversion process.\n\t\tthis.conversionApi.consumable = ViewConsumable.createFrom( viewElement );\n\n\t\t// Custom data stored by converter for conversion process.\n\t\tthis.conversionApi.store = {};\n\n\t\t// Do the conversion.\n\t\tconst { modelRange } = this._convertItem( viewElement, this._modelCursor );\n\n\t\t// Conversion result is always a document fragment so let's create it.\n\t\tconst documentFragment = writer.createDocumentFragment();\n\n\t\t// When there is a conversion result.\n\t\tif ( modelRange ) {\n\t\t\t// Remove all empty elements that were create while splitting.\n\t\t\tthis._removeEmptyElements();\n\n\t\t\t// Move all items that were converted in context tree to the document fragment.\n\t\t\tfor ( const item of Array.from( this._modelCursor.parent.getChildren() ) ) {\n\t\t\t\twriter.append( item, documentFragment );\n\t\t\t}\n\n\t\t\t// Extract temporary markers elements from model and set as static markers collection.\n\t\t\t( documentFragment as any ).markers = extractMarkersFromModelFragment( documentFragment, writer );\n\t\t}\n\n\t\t// Clear context position.\n\t\tthis._modelCursor = null;\n\n\t\t// Clear split elements & parents lists.\n\t\tthis._splitParts.clear();\n\t\tthis._cursorParents.clear();\n\t\tthis._emptyElementsToKeep.clear();\n\n\t\t// Clear conversion API.\n\t\t( this.conversionApi as any ).writer = null;\n\t\tthis.conversionApi.store = null;\n\n\t\t// Return fragment as conversion result.\n\t\treturn documentFragment;\n\t}\n\n\t/**\n\t * @private\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#convertItem\n\t */\n\tprivate _convertItem( viewItem: ViewItem | ViewDocumentFragment, modelCursor: ModelPosition ): {\n\t\tmodelRange: ModelRange | null;\n\t\tmodelCursor: ModelPosition;\n\t} {\n\t\tconst data: UpcastConversionData = { viewItem, modelCursor, modelRange: null };\n\n\t\tif ( viewItem.is( 'element' ) ) {\n\t\t\tthis.fire<UpcastElementEvent>(\n\t\t\t\t`element:${ viewItem.name }`,\n\t\t\t\tdata as UpcastConversionData<ViewElement>,\n\t\t\t\tthis.conversionApi\n\t\t\t);\n\t\t} else if ( viewItem.is( '$text' ) ) {\n\t\t\tthis.fire<UpcastTextEvent>(\n\t\t\t\t'text',\n\t\t\t\tdata as UpcastConversionData<ViewText>,\n\t\t\t\tthis.conversionApi\n\t\t\t);\n\t\t} else {\n\t\t\tthis.fire<UpcastDocumentFragmentEvent>(\n\t\t\t\t'documentFragment',\n\t\t\t\tdata as UpcastConversionData<ViewDocumentFragment>,\n\t\t\t\tthis.conversionApi\n\t\t\t);\n\t\t}\n\n\t\t// Handle incorrect conversion result.\n\t\tif ( data.modelRange && !( data.modelRange instanceof ModelRange ) ) {\n\t\t\t/**\n\t\t\t * Incorrect conversion result was dropped.\n\t\t\t *\n\t\t\t * {@link module:engine/model/range~Range Model range} should be a conversion result.\n\t\t\t *\n\t\t\t * @error view-conversion-dispatcher-incorrect-result\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-conversion-dispatcher-incorrect-result', this );\n\t\t}\n\n\t\treturn { modelRange: data.modelRange, modelCursor: data.modelCursor };\n\t}\n\n\t/**\n\t * @private\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#convertChildren\n\t */\n\tprivate _convertChildren(\n\t\tviewItem: ViewElement | ViewDocumentFragment,\n\t\telementOrModelCursor: ModelPosition | ModelElement\n\t): {\n\t\tmodelRange: ModelRange;\n\t\tmodelCursor: ModelPosition;\n\t} {\n\t\tlet nextModelCursor = elementOrModelCursor.is( 'position' ) ?\n\t\t\telementOrModelCursor : ModelPosition._createAt( elementOrModelCursor, 0 );\n\n\t\tconst modelRange = new ModelRange( nextModelCursor );\n\n\t\tfor ( const viewChild of Array.from( viewItem.getChildren() ) ) {\n\t\t\tconst result = this._convertItem( viewChild, nextModelCursor );\n\n\t\t\tif ( result.modelRange instanceof ModelRange ) {\n\t\t\t\t( modelRange as any ).end = result.modelRange.end;\n\t\t\t\tnextModelCursor = result.modelCursor;\n\t\t\t}\n\t\t}\n\n\t\treturn { modelRange, modelCursor: nextModelCursor };\n\t}\n\n\t/**\n\t * @private\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#safeInsert\n\t */\n\tprivate _safeInsert(\n\t\tmodelElement: ModelElement,\n\t\tposition: ModelPosition\n\t): boolean {\n\t\t// Find allowed parent for element that we are going to insert.\n\t\t// If current parent does not allow to insert element but one of the ancestors does\n\t\t// then split nodes to allowed parent.\n\t\tconst splitResult = this._splitToAllowedParent( modelElement, position );\n\n\t\t// When there is no split result it means that we can't insert element to model tree, so let's skip it.\n\t\tif ( !splitResult ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Insert element on allowed position.\n\t\tthis.conversionApi.writer!.insert( modelElement, splitResult.position );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * @private\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#updateConversionResult\n\t */\n\tprivate _updateConversionResult( modelElement: ModelElement, data: UpcastConversionData ): void {\n\t\tconst parts = this._getSplitParts( modelElement );\n\n\t\tconst writer = this.conversionApi.writer!;\n\n\t\t// Set conversion result range - only if not set already.\n\t\tif ( !data.modelRange ) {\n\t\t\tdata.modelRange = writer.createRange(\n\t\t\t\twriter.createPositionBefore( modelElement ),\n\t\t\t\twriter.createPositionAfter( parts[ parts.length - 1 ] )\n\t\t\t);\n\t\t}\n\n\t\tconst savedCursorParent = this._cursorParents.get( modelElement );\n\n\t\t// Now we need to check where the `modelCursor` should be.\n\t\tif ( savedCursorParent ) {\n\t\t\t// If we split parent to insert our element then we want to continue conversion in the new part of the split parent.\n\t\t\t//\n\t\t\t// before: <allowed><notAllowed>foo[]</notAllowed></allowed>\n\t\t\t// after:  <allowed><notAllowed>foo</notAllowed> <converted></converted> <notAllowed>[]</notAllowed></allowed>\n\n\t\t\tdata.modelCursor = writer.createPositionAt( savedCursorParent, 0 );\n\t\t} else {\n\t\t\t// Otherwise just continue after inserted element.\n\n\t\t\tdata.modelCursor = data.modelRange.end;\n\t\t}\n\t}\n\n\t/**\n\t * @private\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#splitToAllowedParent\n\t */\n\tprivate _splitToAllowedParent( node: ModelElement, modelCursor: ModelPosition ): {\n\t\tposition: ModelPosition;\n\t\tcursorParent?: ModelElement | ModelDocumentFragment;\n\t} | null {\n\t\tconst { schema, writer } = this.conversionApi;\n\n\t\t// Try to find allowed parent.\n\t\tlet allowedParent = schema.findAllowedParent( modelCursor, node );\n\n\t\tif ( allowedParent ) {\n\t\t\t// When current position parent allows to insert node then return this position.\n\t\t\tif ( allowedParent === modelCursor.parent ) {\n\t\t\t\treturn { position: modelCursor };\n\t\t\t}\n\n\t\t\t// When allowed parent is in context tree (it's outside the converted tree).\n\t\t\tif ( this._modelCursor!.parent.getAncestors().includes( allowedParent ) ) {\n\t\t\t\tallowedParent = null;\n\t\t\t}\n\t\t}\n\n\t\tif ( !allowedParent ) {\n\t\t\t// Check if the node wrapped with a paragraph would be accepted by the schema.\n\t\t\tif ( !isParagraphable( modelCursor, node, schema ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\tposition: wrapInParagraph( modelCursor, writer! )\n\t\t\t};\n\t\t}\n\n\t\t// Split element to allowed parent.\n\t\tconst splitResult = this.conversionApi.writer!.split( modelCursor, allowedParent );\n\n\t\t// Using the range returned by `model.Writer#split`, we will pair original elements with their split parts.\n\t\t//\n\t\t// The range returned from the writer spans \"over the split\" or, precisely saying, from the end of the original element (the one\n\t\t// that got split) to the beginning of the other part of that element:\n\t\t//\n\t\t// <limit><a><b><c>X[]Y</c></b><a></limit> ->\n\t\t// <limit><a><b><c>X[</c></b></a><a><b><c>]Y</c></b></a>\n\t\t//\n\t\t// After the split there cannot be any full node between the positions in `splitRange`. The positions are touching.\n\t\t// Also, because of how splitting works, it is easy to notice, that \"closing tags\" are in the reverse order than \"opening tags\".\n\t\t// Also, since we split all those elements, each of them has to have the other part.\n\t\t//\n\t\t// With those observations in mind, we will pair the original elements with their split parts by saving \"closing tags\" and matching\n\t\t// them with \"opening tags\" in the reverse order. For that we can use a stack.\n\t\tconst stack: Array<ModelElement> = [];\n\n\t\tfor ( const treeWalkerValue of splitResult.range.getWalker() ) {\n\t\t\tif ( treeWalkerValue.type == 'elementEnd' ) {\n\t\t\t\tstack.push( treeWalkerValue.item as ModelElement );\n\t\t\t} else {\n\t\t\t\t// There should not be any text nodes after the element is split, so the only other value is `elementStart`.\n\t\t\t\tconst originalPart = stack.pop();\n\t\t\t\tconst splitPart = treeWalkerValue.item as ModelElement;\n\n\t\t\t\tthis._registerSplitPair( originalPart!, splitPart );\n\t\t\t}\n\t\t}\n\n\t\tconst cursorParent = splitResult.range.end.parent;\n\t\tthis._cursorParents.set( node, cursorParent );\n\n\t\treturn {\n\t\t\tposition: splitResult.position,\n\t\t\tcursorParent\n\t\t};\n\t}\n\n\t/**\n\t * Registers that a `splitPart` element is a split part of the `originalPart` element.\n\t *\n\t * The data set by this method is used by {@link #_getSplitParts} and {@link #_removeEmptyElements}.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} originalPart\n\t * @param {module:engine/model/element~Element} splitPart\n\t */\n\tprivate _registerSplitPair( originalPart: ModelElement, splitPart: ModelElement ): void {\n\t\tif ( !this._splitParts.has( originalPart ) ) {\n\t\t\tthis._splitParts.set( originalPart, [ originalPart ] );\n\t\t}\n\n\t\tconst list = this._splitParts.get( originalPart )!;\n\n\t\tthis._splitParts.set( splitPart, list );\n\t\tlist.push( splitPart );\n\t}\n\n\t/**\n\t * @private\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#getSplitParts\n\t */\n\tprivate _getSplitParts( element: ModelElement ): Array<ModelElement> {\n\t\tlet parts: Array<ModelElement>;\n\n\t\tif ( !this._splitParts.has( element ) ) {\n\t\t\tparts = [ element ];\n\t\t} else {\n\t\t\tparts = this._splitParts.get( element )!;\n\t\t}\n\n\t\treturn parts;\n\t}\n\n\t/**\n\t * Mark an element that were created during the splitting to not get removed on conversion end even if it is empty.\n\t *\n\t * @private\n\t */\n\tprivate _keepEmptyElement( element: ModelElement ): void {\n\t\tthis._emptyElementsToKeep.add( element );\n\t}\n\n\t/**\n\t * Checks if there are any empty elements created while splitting and removes them.\n\t *\n\t * This method works recursively to re-check empty elements again after at least one element was removed in the initial call,\n\t * as some elements might have become empty after other empty elements were removed from them.\n\t *\n\t * @private\n\t */\n\tprivate _removeEmptyElements(): void {\n\t\tlet anyRemoved = false;\n\n\t\tfor ( const element of this._splitParts.keys() ) {\n\t\t\tif ( element.isEmpty && !this._emptyElementsToKeep.has( element ) ) {\n\t\t\t\tthis.conversionApi.writer!.remove( element );\n\t\t\t\tthis._splitParts.delete( element );\n\n\t\t\t\tanyRemoved = true;\n\t\t\t}\n\t\t}\n\n\t\tif ( anyRemoved ) {\n\t\t\tthis._removeEmptyElements();\n\t\t}\n\t}\n\n\t/**\n\t * Fired before the first conversion event, at the beginning of the upcast (view-to-model conversion) process.\n\t *\n\t * @event viewCleanup\n\t * @param {module:engine/view/documentfragment~DocumentFragment|module:engine/view/element~Element}\n\t * viewItem A part of the view to be converted.\n\t */\n\n\t/**\n\t * Fired when an {@link module:engine/view/element~Element} is converted.\n\t *\n\t * `element` is a namespace event for a class of events. Names of actually called events follow the pattern of\n\t * `element:<elementName>` where `elementName` is the name of the converted element. This way listeners may listen to\n\t * a conversion of all or just specific elements.\n\t *\n\t * @event element\n\t * @param {module:engine/conversion/upcastdispatcher~UpcastConversionData} data The conversion data. Keep in mind that this object is\n\t * shared by reference between all callbacks that will be called. This means that callbacks can override values if needed, and these\n\t * values will be available in other callbacks.\n\t * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion utilities to be used by the\n\t * callback.\n\t */\n\n\t/**\n\t * Fired when a {@link module:engine/view/text~Text} is converted.\n\t *\n\t * @event text\n\t * @see #event:element\n\t */\n\n\t/**\n\t * Fired when a {@link module:engine/view/documentfragment~DocumentFragment} is converted.\n\t *\n\t * @event documentFragment\n\t * @see #event:element\n\t */\n}\n\nexport type UpcastViewCleanupEvent = {\n\tname: 'viewCleanup';\n\targs: [ ViewElement | ViewDocumentFragment ];\n};\n\ntype UpcastEvent<TName extends string, TItem extends ViewItem | ViewDocumentFragment> = {\n\tname: TName | `${ TName }:${ string }`;\n\targs: [ data: UpcastConversionData<TItem>, conversionApi: UpcastConversionApi ];\n};\nexport type UpcastElementEvent = UpcastEvent<'element', ViewElement>;\n\nexport type UpcastTextEvent = UpcastEvent<'text', ViewText>;\n\nexport type UpcastDocumentFragmentEvent = UpcastEvent<'documentFragment', ViewDocumentFragment>;\n\n// Traverses given model item and searches elements which marks marker range. Found element is removed from\n// DocumentFragment but path of this element is stored in a Map which is then returned.\n//\n// @param {module:engine/view/documentfragment~DocumentFragment|module:engine/view/node~Node} modelItem Fragment of model.\n// @returns {Map<String, module:engine/model/range~Range>} List of static markers.\nfunction extractMarkersFromModelFragment( modelItem: ModelDocumentFragment, writer: ModelWriter ): Map<string, ModelRange> {\n\tconst markerElements = new Set<ModelElement>();\n\tconst markers = new Map<string, ModelRange>();\n\n\t// Create ModelTreeWalker.\n\tconst range = ModelRange._createIn( modelItem ).getItems();\n\n\t// Walk through DocumentFragment and collect marker elements.\n\tfor ( const item of range ) {\n\t\t// Check if current element is a marker.\n\t\tif ( item.is( 'element', '$marker' ) ) {\n\t\t\tmarkerElements.add( item );\n\t\t}\n\t}\n\n\t// Walk through collected marker elements store its path and remove its from the DocumentFragment.\n\tfor ( const markerElement of markerElements ) {\n\t\tconst markerName = markerElement.getAttribute( 'data-name' ) as string;\n\t\tconst currentPosition = writer.createPositionBefore( markerElement );\n\n\t\t// When marker of given name is not stored it means that we have found the beginning of the range.\n\t\tif ( !markers.has( markerName ) ) {\n\t\t\tmarkers.set( markerName, new ModelRange( currentPosition.clone() ) );\n\t\t// Otherwise is means that we have found end of the marker range.\n\t\t} else {\n\t\t\t( markers.get( markerName ) as any ).end = currentPosition.clone();\n\t\t}\n\n\t\t// Remove marker element from DocumentFragment.\n\t\twriter.remove( markerElement );\n\t}\n\n\treturn markers;\n}\n\n// Creates model fragment according to given context and returns position in the bottom (the deepest) element.\nfunction createContextTree(\n\tcontextDefinition: SchemaContextDefinition,\n\twriter: ModelWriter\n): ModelPosition | undefined {\n\tlet position: ModelPosition | undefined;\n\n\tfor ( const item of new SchemaContext( contextDefinition ) ) {\n\t\tconst attributes: Record<string, unknown> = {};\n\n\t\tfor ( const key of item.getAttributeKeys() ) {\n\t\t\tattributes[ key ] = item.getAttribute( key );\n\t\t}\n\n\t\tconst current = writer.createElement( item.name, attributes );\n\n\t\tif ( position ) {\n\t\t\twriter.insert( current, position );\n\t\t}\n\n\t\tposition = ModelPosition._createAt( current, 0 );\n\t}\n\n\treturn position;\n}\n\n/**\n * A set of conversion utilities available as the third parameter of the\n * {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher upcast dispatcher}'s events.\n *\n * @interface module:engine/conversion/upcastdispatcher~UpcastConversionApi\n */\nexport interface UpcastConversionApi {\n\tconsumable: ViewConsumable;\n\tschema: Schema;\n\twriter: ModelWriter;\n\tstore: unknown;\n\n\tconvertItem( viewItem: ViewItem, modelCursor: ModelPosition ): {\n\t\tmodelRange: ModelRange | null;\n\t\tmodelCursor: ModelPosition;\n\t};\n\tconvertChildren( viewElement: ViewElement | ViewDocumentFragment, positionOrElement: ModelPosition | ModelElement ): {\n\t\tmodelRange: ModelRange | null;\n\t\tmodelCursor: ModelPosition;\n\t};\n\tsafeInsert( modelElement: ModelElement, position: ModelPosition ): boolean;\n\tupdateConversionResult( modelElement: ModelElement, data: UpcastConversionData ): void;\n\tsplitToAllowedParent( modelElement: ModelElement, modelCursor: ModelPosition ): {\n\t\tposition: ModelPosition;\n\t\tcursorParent?: ModelElement | ModelDocumentFragment;\n\t} | null;\n\tgetSplitParts( modelElement: ModelElement ): Array<ModelElement>;\n\tkeepEmptyElement( modelElement: ModelElement ): void;\n}\n\n/**\n * Starts the conversion of a given item by firing an appropriate event.\n *\n * Every fired event is passed (as the first parameter) an object with the `modelRange` property. Every event may set and/or\n * modify that property. When all callbacks are done, the final value of the `modelRange` property is returned by this method.\n * The `modelRange` must be a {@link module:engine/model/range~Range model range} or `null` (as set by default).\n *\n * @method #convertItem\n * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:text\n * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:documentFragment\n * @param {module:engine/view/item~Item} viewItem Item to convert.\n * @param {module:engine/model/position~Position} modelCursor The conversion position.\n * @returns {Object} result The conversion result.\n * @returns {module:engine/model/range~Range|null} result.modelRange The model range containing the result of the item conversion,\n * created and modified by callbacks attached to the fired event, or `null` if the conversion result was incorrect.\n * @returns {module:engine/model/position~Position} result.modelCursor The position where the conversion should be continued.\n */\n\n/**\n * Starts the conversion of all children of a given item by firing appropriate events for all the children.\n *\n * @method #convertChildren\n * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:text\n * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:documentFragment\n * @param {module:engine/view/item~Item} viewItem An element whose children should be converted.\n * @param {module:engine/model/position~Position|module:engine/model/element~Element} positionOrElement A position or an element of\n * the conversion.\n * @returns {Object} result The conversion result.\n * @returns {module:engine/model/range~Range} result.modelRange The model range containing the results of the conversion of all children\n * of the given item. When no child was converted, the range is collapsed.\n * @returns {module:engine/model/position~Position} result.modelCursor The position where the conversion should be continued.\n */\n\n/**\n * Safely inserts an element to the document, checking the {@link module:engine/model/schema~Schema schema} to find an allowed parent for\n * an element that you are going to insert, starting from the given position. If the current parent does not allow to insert the element\n * but one of the ancestors does, then splits the nodes to allowed parent.\n *\n * If the schema allows to insert the node in a given position, nothing is split.\n *\n * If it was not possible to find an allowed parent, `false` is returned and nothing is split.\n *\n * Otherwise, ancestors are split.\n *\n * For instance, if `<imageBlock>` is not allowed in `<paragraph>` but is allowed in `$root`:\n *\n *\t\t<paragraph>foo[]bar</paragraph>\n *\n *\t\t-> safe insert for `<imageBlock>` will split ->\n *\n *\t\t<paragraph>foo</paragraph>[]<paragraph>bar</paragraph>\n *\n * Example usage:\n *\n *\t\tconst myElement = conversionApi.writer.createElement( 'myElement' );\n *\n *\t\tif ( !conversionApi.safeInsert( myElement, data.modelCursor ) ) {\n *\t\t\treturn;\n *\t\t}\n *\n * The split result is saved and {@link #updateConversionResult} should be used to update the\n * {@link module:engine/conversion/upcastdispatcher~UpcastConversionData conversion data}.\n *\n * @method #safeInsert\n * @param {module:engine/model/node~Node} node The node to insert.\n * @param {module:engine/model/position~Position} position The position where an element is going to be inserted.\n * @returns {Boolean} The split result. If it was not possible to find an allowed position, `false` is returned.\n */\n\n/**\n * Updates the conversion result and sets a proper {@link module:engine/conversion/upcastdispatcher~UpcastConversionData#modelRange} and\n * the next {@link module:engine/conversion/upcastdispatcher~UpcastConversionData#modelCursor} after the conversion.\n * Used together with {@link #safeInsert}, it enables you to easily convert elements without worrying if the node was split\n * during the conversion of its children.\n *\n * A usage example in converter code:\n *\n *\t\tconst myElement = conversionApi.writer.createElement( 'myElement' );\n *\n *\t\tif ( !conversionApi.safeInsert( myElement, data.modelCursor ) ) {\n *\t\t\treturn;\n *\t\t}\n *\n *\t\t// Children conversion may split `myElement`.\n *\t\tconversionApi.convertChildren( data.viewItem, myElement );\n *\n *\t\tconversionApi.updateConversionResult( myElement, data );\n *\n * @method #updateConversionResult\n * @param {module:engine/model/element~Element} element\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionData} data Conversion data.\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion utilities to be used by the callback.\n */\n\n/**\n * Checks the {@link module:engine/model/schema~Schema schema} to find an allowed parent for an element that is going to be inserted\n * starting from the given position. If the current parent does not allow inserting an element but one of the ancestors does, the method\n * splits nodes to allowed parent.\n *\n * If the schema allows inserting the node in the given position, nothing is split and an object with that position is returned.\n *\n * If it was not possible to find an allowed parent, `null` is returned and nothing is split.\n *\n * Otherwise, ancestors are split and an object with a position and the copy of the split element is returned.\n *\n * For instance, if `<imageBlock>` is not allowed in `<paragraph>` but is allowed in `$root`:\n *\n *\t\t<paragraph>foo[]bar</paragraph>\n *\n *\t\t-> split for `<imageBlock>` ->\n *\n *\t\t<paragraph>foo</paragraph>[]<paragraph>bar</paragraph>\n *\n * In the example above, the position between `<paragraph>` elements will be returned as `position` and the second `paragraph`\n * as `cursorParent`.\n *\n * **Note:** This is an advanced method. For most cases {@link #safeInsert} and {@link #updateConversionResult} should be used.\n *\n * @method #splitToAllowedParent\n * @param {module:engine/model/position~Position} position The position where the element is going to be inserted.\n * @param {module:engine/model/node~Node} node The node to insert.\n * @returns {Object|null} The split result. If it was not possible to find an allowed position, `null` is returned.\n * @returns {module:engine/model/position~Position} The position between split elements.\n * @returns {module:engine/model/element~Element} [cursorParent] The element inside which the cursor should be placed to\n * continue the conversion. When the element is not defined it means that there was no split.\n */\n\n/**\n * Returns all the split parts of the given `element` that were created during upcasting through using {@link #splitToAllowedParent}.\n * It enables you to easily track these elements and continue processing them after they are split during the conversion of their children.\n *\n *\t\t<paragraph>Foo<imageBlock />bar<imageBlock />baz</paragraph> ->\n *\t\t<paragraph>Foo</paragraph><imageBlock /><paragraph>bar</paragraph><imageBlock /><paragraph>baz</paragraph>\n *\n * For a reference to any of above paragraphs, the function will return all three paragraphs (the original element included),\n * sorted in the order of their creation (the original element is the first one).\n *\n * If the given `element` was not split, an array with a single element is returned.\n *\n * A usage example in the converter code:\n *\n *\t\tconst myElement = conversionApi.writer.createElement( 'myElement' );\n *\n *\t\t// Children conversion may split `myElement`.\n *\t\tconversionApi.convertChildren( data.viewItem, data.modelCursor );\n *\n *\t\tconst splitParts = conversionApi.getSplitParts( myElement );\n *\t\tconst lastSplitPart = splitParts[ splitParts.length - 1 ];\n *\n *\t\t// Setting `data.modelRange` basing on split parts:\n *\t\tdata.modelRange = conversionApi.writer.createRange(\n *\t\t\tconversionApi.writer.createPositionBefore( myElement ),\n *\t\t\tconversionApi.writer.createPositionAfter( lastSplitPart )\n *\t\t);\n *\n *\t\t// Setting `data.modelCursor` to continue after the last split element:\n *\t\tdata.modelCursor = conversionApi.writer.createPositionAfter( lastSplitPart );\n *\n * **Tip:** If you are unable to get a reference to the original element (for example because the code is split into multiple converters\n * or even classes) but it has already been converted, you may want to check the first element in `data.modelRange`. This is a common\n * situation if an attribute converter is separated from an element converter.\n *\n * **Note:** This is an advanced method. For most cases {@link #safeInsert} and {@link #updateConversionResult} should be used.\n *\n * @method #getSplitParts\n * @param {module:engine/model/element~Element} element\n * @returns {Array.<module:engine/model/element~Element>}\n */\n\n/**\n * Mark an element that was created during splitting to not get removed on conversion end even if it is empty.\n *\n * **Note:** This is an advanced method. For most cases you will not need to keep the split empty element.\n *\n * @method #keepEmptyElement\n * @param {module:engine/model/element~Element} element\n */\n\n/**\n * Stores information about what parts of the processed view item are still waiting to be handled. After a piece of view item\n * was converted, an appropriate consumable value should be\n * {@link module:engine/conversion/viewconsumable~ViewConsumable#consume consumed}.\n *\n * @member {module:engine/conversion/viewconsumable~ViewConsumable} #consumable\n */\n\n/**\n * Custom data stored by converters for the conversion process. Custom properties of this object can be defined and use to\n * pass parameters between converters.\n *\n * The difference between this property and the `data` parameter of\n * {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element} is that the `data` parameters allow you\n * to pass parameters within a single event and `store` within the whole conversion.\n *\n * @member {Object} #store\n */\n\n/**\n * The model's schema instance.\n *\n * @member {module:engine/model/schema~Schema} #schema\n */\n\n/**\n * The {@link module:engine/model/writer~Writer} instance used to manipulate the data during conversion.\n *\n * @member {module:engine/model/writer~Writer} #writer\n */\n\n/**\n * Conversion data.\n *\n * **Note:** Keep in mind that this object is shared by reference between all conversion callbacks that will be called.\n * This means that callbacks can override values if needed, and these values will be available in other callbacks.\n *\n * @typedef {Object} module:engine/conversion/upcastdispatcher~UpcastConversionData\n *\n * @property {module:engine/view/item~Item} viewItem The converted item.\n * @property {module:engine/model/position~Position} modelCursor The position where the converter should start changes.\n * Change this value for the next converter to tell where the conversion should continue.\n * @property {module:engine/model/range~Range} [modelRange] The current state of conversion result. Every change to\n * the converted element should be reflected by setting or modifying this property.\n */\nexport type UpcastConversionData<TItem extends ViewItem | ViewDocumentFragment = ViewItem | ViewDocumentFragment> = {\n\tviewItem: TItem;\n\tmodelCursor: ModelPosition;\n\tmodelRange: ModelRange | null;\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type HtmlWriter from './htmlwriter';\n\n/**\n * @module engine/dataprocessor/basichtmlwriter\n */\n\n/* globals document */\n\n/**\n * Basic HTML writer. It uses the native `innerHTML` property for basic conversion\n * from a document fragment to an HTML string.\n *\n * @implements module:engine/dataprocessor/htmlwriter~HtmlWriter\n */\nexport default class BasicHtmlWriter implements HtmlWriter {\n\t/**\n\t * Returns an HTML string created from the document fragment.\n\t *\n\t * @param {DocumentFragment} fragment\n\t * @returns {String}\n\t */\n\tpublic getHtml( fragment: DocumentFragment ): string {\n\t\tconst doc = document.implementation.createHTMLDocument( '' );\n\t\tconst container = doc.createElement( 'div' );\n\t\tcontainer.appendChild( fragment );\n\n\t\treturn container.innerHTML;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/dataprocessor/htmldataprocessor\n */\n\n/* globals DOMParser */\n\nimport BasicHtmlWriter from './basichtmlwriter';\nimport DomConverter from '../view/domconverter';\n\nimport type DataProcessor from './dataprocessor';\nimport type HtmlWriter from './htmlwriter';\nimport type ViewDocument from '../view/document';\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type { MatcherPattern } from '../view/matcher';\n\n/**\n * The HTML data processor class.\n * This data processor implementation uses HTML as input and output data.\n *\n * @implements module:engine/dataprocessor/dataprocessor~DataProcessor\n */\nexport default class HtmlDataProcessor implements DataProcessor {\n\tpublic domParser: DOMParser;\n\tpublic domConverter: DomConverter;\n\tpublic htmlWriter: HtmlWriter;\n\tpublic skipComments: boolean = true;\n\n\t/**\n\t * Creates a new instance of the HTML data processor class.\n\t *\n\t * @param {module:engine/view/document~Document} document The view document instance.\n\t */\n\tconstructor( document: ViewDocument ) {\n\t\t/**\n\t\t * A DOM parser instance used to parse an HTML string to an HTML document.\n\t\t *\n\t\t * @member {DOMParser}\n\t\t */\n\t\tthis.domParser = new DOMParser();\n\n\t\t/**\n\t\t * A DOM converter used to convert DOM elements to view elements.\n\t\t *\n\t\t * @member {module:engine/view/domconverter~DomConverter}\n\t\t */\n\t\tthis.domConverter = new DomConverter( document, { renderingMode: 'data' } );\n\n\t\t/**\n\t\t * A basic HTML writer instance used to convert DOM elements to an HTML string.\n\t\t *\n\t\t * @member {module:engine/dataprocessor/htmlwriter~HtmlWriter}\n\t\t */\n\t\tthis.htmlWriter = new BasicHtmlWriter();\n\t}\n\n\t/**\n\t * Converts a provided {@link module:engine/view/documentfragment~DocumentFragment document fragment}\n\t * to data format &mdash; in this case to an HTML string.\n\t *\n\t * @param {module:engine/view/documentfragment~DocumentFragment} viewFragment\n\t * @returns {String} HTML string.\n\t */\n\tpublic toData( viewFragment: ViewDocumentFragment ): string {\n\t\t// Convert view DocumentFragment to DOM DocumentFragment.\n\t\tconst domFragment = this.domConverter.viewToDom( viewFragment ) as DocumentFragment;\n\n\t\t// Convert DOM DocumentFragment to HTML output.\n\t\treturn this.htmlWriter.getHtml( domFragment );\n\t}\n\n\t/**\n\t * Converts the provided HTML string to a view tree.\n\t *\n\t * @param {String} data An HTML string.\n\t * @returns {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment|null} A converted view element.\n\t */\n\tpublic toView( data: string ): ViewDocumentFragment {\n\t\t// Convert input HTML data to DOM DocumentFragment.\n\t\tconst domFragment = this._toDom( data );\n\n\t\t// Convert DOM DocumentFragment to view DocumentFragment.\n\t\treturn this.domConverter.domToView( domFragment, { skipComments: this.skipComments } ) as ViewDocumentFragment;\n\t}\n\n\t/**\n\t * Registers a {@link module:engine/view/matcher~MatcherPattern} for view elements whose content should be treated as raw data\n\t * and not processed during the conversion from the DOM to the view elements.\n\t *\n\t * The raw data can be later accessed by a\n\t * {@link module:engine/view/element~Element#getCustomProperty custom property of a view element} called `\"$rawContent\"`.\n\t *\n\t * @param {module:engine/view/matcher~MatcherPattern} pattern Pattern matching all view elements whose content should\n\t * be treated as raw data.\n\t */\n\tpublic registerRawContentMatcher( pattern: MatcherPattern ): void {\n\t\tthis.domConverter.registerRawContentMatcher( pattern );\n\t}\n\n\t/**\n\t * If the processor is set to use marked fillers, it will insert `&nbsp;` fillers wrapped in `<span>` elements\n\t * (`<span data-cke-filler=\"true\">&nbsp;</span>`) instead of regular `&nbsp;` characters.\n\t *\n\t * This mode allows for a more precise handling of the block fillers (so they do not leak into the editor content) but\n\t * bloats the editor data with additional markup.\n\t *\n\t * This mode may be required by some features and will be turned on by them automatically.\n\t *\n\t * @param {'default'|'marked'} type Whether to use the default or the marked `&nbsp;` block fillers.\n\t */\n\tpublic useFillerType( type: 'default' | 'marked' ): void {\n\t\tthis.domConverter.blockFillerMode = type == 'marked' ? 'markedNbsp' : 'nbsp';\n\t}\n\n\t/**\n\t * Converts an HTML string to its DOM representation. Returns a document fragment containing nodes parsed from\n\t * the provided data.\n\t *\n\t * @private\n\t * @param {String} data\n\t * @returns {DocumentFragment}\n\t */\n\tprivate _toDom( data: string ): DocumentFragment {\n\t\t// Wrap data with a <body> tag so leading non-layout nodes (like <script>, <style>, HTML comment)\n\t\t// will be preserved in the body collection.\n\t\t// Do it only for data that is not a full HTML document.\n\t\tif ( !data.match( /<(?:html|body|head|meta)(?:\\s[^>]*)?>/i ) ) {\n\t\t\tdata = `<body>${ data }</body>`;\n\t\t}\n\n\t\tconst document = this.domParser.parseFromString( data, 'text/html' );\n\t\tconst fragment = document.createDocumentFragment();\n\t\tconst bodyChildNodes = document.body.childNodes;\n\n\t\twhile ( bodyChildNodes.length > 0 ) {\n\t\t\tfragment.appendChild( bodyChildNodes[ 0 ] );\n\t\t}\n\n\t\treturn fragment;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/controller/datacontroller\n */\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tObservableMixin\n} from '@ckeditor/ckeditor5-utils';\n\nimport Mapper from '../conversion/mapper';\n\nimport DowncastDispatcher, { type DowncastInsertEvent } from '../conversion/downcastdispatcher';\nimport { insertAttributesAndChildren, insertText } from '../conversion/downcasthelpers';\n\nimport UpcastDispatcher, {\n\ttype UpcastDocumentFragmentEvent,\n\ttype UpcastElementEvent,\n\ttype UpcastTextEvent\n} from '../conversion/upcastdispatcher';\nimport { convertText, convertToModelFragment } from '../conversion/upcasthelpers';\n\nimport ViewDocumentFragment from '../view/documentfragment';\nimport ViewDocument from '../view/document';\nimport ViewDowncastWriter from '../view/downcastwriter';\nimport type ViewElement from '../view/element';\nimport type { StylesProcessor } from '../view/stylesmap';\nimport type { MatcherPattern } from '../view/matcher';\n\nimport ModelRange from '../model/range';\nimport type Model from '../model/model';\nimport type ModelText from '../model/text';\nimport type ModelElement from '../model/element';\nimport type ModelTextProxy from '../model/textproxy';\nimport type ModelDocumentFragment from '../model/documentfragment';\nimport type { SchemaContextDefinition } from '../model/schema';\nimport type { BatchType } from '../model/batch';\nimport { autoParagraphEmptyRoots } from '../model/utils/autoparagraphing';\n\nimport HtmlDataProcessor from '../dataprocessor/htmldataprocessor';\nimport type DataProcessor from '../dataprocessor/dataprocessor';\n\n/**\n * Controller for the data pipeline. The data pipeline controls how data is retrieved from the document\n * and set inside it. Hence, the controller features two methods which allow to {@link ~DataController#get get}\n * and {@link ~DataController#set set} data of the {@link ~DataController#model model}\n * using the given:\n *\n * * {@link module:engine/dataprocessor/dataprocessor~DataProcessor data processor},\n * * downcast converters,\n * * upcast converters.\n *\n * An instance of the data controller is always available in the {@link module:core/editor/editor~Editor#data `editor.data`}\n * property:\n *\n *\t\teditor.data.get( { rootName: 'customRoot' } ); // -> '<p>Hello!</p>'\n *\n * @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default class DataController extends EmitterMixin() {\n\tpublic readonly model: Model;\n\tpublic readonly mapper: Mapper;\n\tpublic readonly downcastDispatcher: DowncastDispatcher;\n\tpublic readonly upcastDispatcher: UpcastDispatcher;\n\tpublic readonly viewDocument: ViewDocument;\n\tpublic readonly stylesProcessor: StylesProcessor;\n\tpublic readonly htmlProcessor: HtmlDataProcessor;\n\tpublic processor: DataProcessor;\n\n\tprivate readonly _viewWriter: ViewDowncastWriter;\n\n\t/**\n\t * Creates a data controller instance.\n\t *\n\t * @param {module:engine/model/model~Model} model Data model.\n\t * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor The styles processor instance.\n\t */\n\tconstructor( model: Model, stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Data model.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/model~Model}\n\t\t */\n\t\tthis.model = model;\n\n\t\t/**\n\t\t * Mapper used for the conversion. It has no permanent bindings, because these are created while getting data and\n\t\t * ae cleared directly after the data are converted. However, the mapper is defined as a class property, because\n\t\t * it needs to be passed to the `DowncastDispatcher` as a conversion API.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/conversion/mapper~Mapper}\n\t\t */\n\t\tthis.mapper = new Mapper();\n\n\t\t/**\n\t\t * Downcast dispatcher used by the {@link #get get method}. Downcast converters should be attached to it.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/conversion/downcastdispatcher~DowncastDispatcher}\n\t\t */\n\t\tthis.downcastDispatcher = new DowncastDispatcher( {\n\t\t\tmapper: this.mapper,\n\t\t\tschema: model.schema\n\t\t} );\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent<ModelText | ModelTextProxy>>( 'insert:$text', insertText(), { priority: 'lowest' } );\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent>( 'insert', insertAttributesAndChildren(), { priority: 'lowest' } );\n\n\t\t/**\n\t\t * Upcast dispatcher used by the {@link #set set method}. Upcast converters should be attached to it.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/conversion/upcastdispatcher~UpcastDispatcher}\n\t\t */\n\t\tthis.upcastDispatcher = new UpcastDispatcher( {\n\t\t\tschema: model.schema\n\t\t} );\n\n\t\t/**\n\t\t * The view document used by the data controller.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/document~Document}\n\t\t */\n\t\tthis.viewDocument = new ViewDocument( stylesProcessor );\n\n\t\t/**\n\t\t * Styles processor used during the conversion.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/view/stylesmap~StylesProcessor}\n\t\t */\n\t\tthis.stylesProcessor = stylesProcessor;\n\n\t\t/**\n\t\t * Data processor used specifically for HTML conversion.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/dataprocessor/htmldataprocessor~HtmlDataProcessor} #htmlProcessor\n\t\t */\n\t\tthis.htmlProcessor = new HtmlDataProcessor( this.viewDocument );\n\n\t\t/**\n\t\t * Data processor used during the conversion.\n\t\t * Same instance as {@link #htmlProcessor} by default. Can be replaced at run time to handle different format, e.g. XML or Markdown.\n\t\t *\n\t\t * @member {module:engine/dataprocessor/dataprocessor~DataProcessor} #processor\n\t\t */\n\t\tthis.processor = this.htmlProcessor;\n\n\t\t/**\n\t\t * The view downcast writer just for data conversion purposes, i.e. to modify\n\t\t * the {@link #viewDocument}.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @member {module:engine/view/downcastwriter~DowncastWriter}\n\t\t */\n\t\tthis._viewWriter = new ViewDowncastWriter( this.viewDocument );\n\n\t\t// Define default converters for text and elements.\n\t\t//\n\t\t// Note that if there is no default converter for the element it will be skipped, for instance `<b>foo</b>` will be\n\t\t// converted to nothing. We therefore add `convertToModelFragment` as a last converter so it converts children of that\n\t\t// element to the document fragment so `<b>foo</b>` will still be converted to `foo` even if there is no converter for `<b>`.\n\t\tthis.upcastDispatcher.on<UpcastTextEvent>( 'text', convertText(), { priority: 'lowest' } );\n\t\tthis.upcastDispatcher.on<UpcastElementEvent>( 'element', convertToModelFragment(), { priority: 'lowest' } );\n\t\tthis.upcastDispatcher.on<UpcastDocumentFragmentEvent>( 'documentFragment', convertToModelFragment(), { priority: 'lowest' } );\n\n\t\tObservableMixin().prototype.decorate.call( this, 'init' as any );\n\t\tObservableMixin().prototype.decorate.call( this, 'set' as any );\n\t\tObservableMixin().prototype.decorate.call( this, 'get' as any );\n\n\t\t// Fire the `ready` event when the initialization has completed. Such low-level listener offers the possibility\n\t\t// to plug into the initialization pipeline without interrupting the initialization flow.\n\t\tthis.on( 'init', () => {\n\t\t\tthis.fire( 'ready' );\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Fix empty roots after DataController is 'ready' (note that the init method could be decorated and stopped).\n\t\t// We need to handle this event because initial data could be empty and the post-fixer would not get triggered.\n\t\tthis.on( 'ready', () => {\n\t\t\tthis.model.enqueueChange( { isUndoable: false }, autoParagraphEmptyRoots );\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Returns the model's data converted by downcast dispatchers attached to {@link #downcastDispatcher} and\n\t * formatted by the {@link #processor data processor}.\n\t *\n\t * @fires get\n\t * @param {Object} [options] Additional configuration for the retrieved data. `DataController` provides two optional\n\t * properties: `rootName` and `trim`. Other properties of this object are specified by various editor features.\n\t * @param {String} [options.rootName='main'] Root name.\n\t * @param {String} [options.trim='empty'] Whether returned data should be trimmed. This option is set to `empty` by default,\n\t * which means whenever editor content is considered empty, an empty string will be returned. To turn off trimming completely\n\t * use `'none'`. In such cases the exact content will be returned (for example a `<p>&nbsp;</p>` for an empty editor).\n\t * @returns {String} Output data.\n\t */\n\tpublic get( options: Record<string, unknown> = {} ): string {\n\t\tconst { rootName = 'main', trim = 'empty' } = options as Record<string, string>;\n\n\t\tif ( !this._checkIfRootsExists( [ rootName ] ) ) {\n\t\t\t/**\n\t\t\t * Cannot get data from a non-existing root. This error is thrown when {@link #get DataController#get() method}\n\t\t\t * is called with a non-existent root name. For example, if there is an editor instance with only `main` root,\n\t\t\t * calling {@link #get} like:\n\t\t\t *\n\t\t\t *\t\tdata.get( { rootName: 'root2' } );\n\t\t\t *\n\t\t\t * will throw this error.\n\t\t\t *\n\t\t\t * @error datacontroller-get-non-existent-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-get-non-existent-root', this );\n\t\t}\n\n\t\tconst root = this.model.document.getRoot( rootName )!;\n\n\t\tif ( trim === 'empty' && !this.model.hasContent( root, { ignoreWhitespaces: true } ) ) {\n\t\t\treturn '';\n\t\t}\n\n\t\treturn this.stringify( root, options );\n\t}\n\n\t/**\n\t * Returns the content of the given {@link module:engine/model/element~Element model's element} or\n\t * {@link module:engine/model/documentfragment~DocumentFragment model document fragment} converted by the downcast converters\n\t * attached to the {@link #downcastDispatcher} and formatted by the {@link #processor data processor}.\n\t *\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} modelElementOrFragment\n\t * The element whose content will be stringified.\n\t * @param {Object} [options] Additional configuration passed to the conversion process.\n\t * @returns {String} Output data.\n\t */\n\tpublic stringify(\n\t\tmodelElementOrFragment: ModelElement | ModelDocumentFragment,\n\t\toptions: Record<string, unknown> = {}\n\t): string {\n\t\t// Model -> view.\n\t\tconst viewDocumentFragment = this.toView( modelElementOrFragment, options );\n\n\t\t// View -> data.\n\t\treturn this.processor.toData( viewDocumentFragment );\n\t}\n\n\t/**\n\t * Returns the content of the given {@link module:engine/model/element~Element model element} or\n\t * {@link module:engine/model/documentfragment~DocumentFragment model document fragment} converted by the downcast\n\t * converters attached to {@link #downcastDispatcher} into a\n\t * {@link module:engine/view/documentfragment~DocumentFragment view document fragment}.\n\t *\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} modelElementOrFragment\n\t * Element or document fragment whose content will be converted.\n\t * @param {Object} [options={}] Additional configuration that will be available through the\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi#options} during the conversion process.\n\t * @returns {module:engine/view/documentfragment~DocumentFragment} Output view DocumentFragment.\n\t */\n\tpublic toView(\n\t\tmodelElementOrFragment: ModelElement | ModelDocumentFragment,\n\t\toptions: Record<string, unknown> = {}\n\t): ViewDocumentFragment {\n\t\tconst viewDocument = this.viewDocument;\n\t\tconst viewWriter = this._viewWriter;\n\n\t\t// Clear bindings so the call to this method returns correct results.\n\t\tthis.mapper.clearBindings();\n\n\t\t// First, convert elements.\n\t\tconst modelRange = ModelRange._createIn( modelElementOrFragment );\n\t\tconst viewDocumentFragment = new ViewDocumentFragment( viewDocument );\n\n\t\tthis.mapper.bindElements( modelElementOrFragment, viewDocumentFragment );\n\n\t\t// Prepare list of markers.\n\t\t// For document fragment, simply take the markers assigned to this document fragment.\n\t\t// For model root, all markers in that root will be taken.\n\t\t// For model element, we need to check which markers are intersecting with this element and relatively modify the markers' ranges.\n\t\t// Collapsed markers at element boundary, although considered as not intersecting with the element, will also be returned.\n\t\tconst markers = modelElementOrFragment.is( 'documentFragment' ) ?\n\t\t\tmodelElementOrFragment.markers :\n\t\t\t_getMarkersRelativeToElement( modelElementOrFragment );\n\n\t\tthis.downcastDispatcher.convert( modelRange, markers, viewWriter, options );\n\n\t\treturn viewDocumentFragment;\n\t}\n\n\t/**\n\t * Sets the initial input data parsed by the {@link #processor data processor} and\n\t * converted by the {@link #upcastDispatcher view-to-model converters}.\n\t * Initial data can be only set to a document whose {@link module:engine/model/document~Document#version} is equal 0.\n\t *\n\t * **Note** This method is {@link module:utils/observablemixin~ObservableMixin#decorate decorated} which is\n\t * used by e.g. collaborative editing plugin that syncs remote data on init.\n\t *\n\t * When data is passed as a string, it is initialized on the default `main` root:\n\t *\n\t *\t\tdataController.init( '<p>Foo</p>' ); // Initializes data on the `main` root only, as no other is specified.\n\t *\n\t * To initialize data on a different root or multiple roots at once, an object containing `rootName` - `data` pairs should be passed:\n\t *\n\t *\t\tdataController.init( { main: '<p>Foo</p>', title: '<h1>Bar</h1>' } ); // Initializes data on both the `main` and `title` roots.\n\t *\n\t * @fires init\n\t * @param {String|Object.<String,String>} data Input data as a string or an object containing the `rootName` - `data`\n\t * pairs to initialize data on multiple roots at once.\n\t * @returns {Promise} Promise that is resolved after the data is set on the editor.\n\t */\n\tpublic init( data: string | Record<string, string> ): Promise<void> {\n\t\tif ( this.model.document.version ) {\n\t\t\t/**\n\t\t\t * Cannot set initial data to a non-empty {@link module:engine/model/document~Document}.\n\t\t\t * Initial data should be set once, during the {@link module:core/editor/editor~Editor} initialization,\n\t\t\t * when the {@link module:engine/model/document~Document#version} is equal 0.\n\t\t\t *\n\t\t\t * @error datacontroller-init-document-not-empty\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-init-document-not-empty', this );\n\t\t}\n\n\t\tlet initialData: Record<string, string> = {};\n\n\t\tif ( typeof data === 'string' ) {\n\t\t\tinitialData.main = data; // Default root is 'main'. To initiate data on a different root, object should be passed.\n\t\t} else {\n\t\t\tinitialData = data;\n\t\t}\n\n\t\tif ( !this._checkIfRootsExists( Object.keys( initialData ) ) ) {\n\t\t\t/**\n\t\t\t * Cannot init data on a non-existent root. This error is thrown when {@link #init DataController#init() method}\n\t\t\t * is called with non-existent root name. For example, if there is an editor instance with only `main` root,\n\t\t\t * calling {@link #init} like:\n\t\t\t *\n\t\t\t * \t\tdata.init( { main: '<p>Foo</p>', root2: '<p>Bar</p>' } );\n\t\t\t *\n\t\t\t * will throw this error.\n\t\t\t *\n\t\t\t * @error datacontroller-init-non-existent-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-init-non-existent-root', this );\n\t\t}\n\n\t\tthis.model.enqueueChange( { isUndoable: false }, writer => {\n\t\t\tfor ( const rootName of Object.keys( initialData ) ) {\n\t\t\t\tconst modelRoot = this.model.document.getRoot( rootName )!;\n\n\t\t\t\twriter.insert( this.parse( initialData[ rootName ], modelRoot ), modelRoot, 0 );\n\t\t\t}\n\t\t} );\n\n\t\treturn Promise.resolve();\n\t}\n\n\t/**\n\t * Sets the input data parsed by the {@link #processor data processor} and\n\t * converted by the {@link #upcastDispatcher view-to-model converters}.\n\t * This method can be used any time to replace existing editor data with the new one without clearing the\n\t * {@link module:engine/model/document~Document#history document history}.\n\t *\n\t * This method also creates a batch with all the changes applied. If all you need is to parse data, use\n\t * the {@link #parse} method.\n\t *\n\t * When data is passed as a string it is set on the default `main` root:\n\t *\n\t *\t\tdataController.set( '<p>Foo</p>' ); // Sets data on the `main` root, as no other is specified.\n\t *\n\t * To set data on a different root or multiple roots at once, an object containing `rootName` - `data` pairs should be passed:\n\t *\n\t *\t\tdataController.set( { main: '<p>Foo</p>', title: '<h1>Bar</h1>' } ); // Sets data on the `main` and `title` roots as specified.\n\t *\n\t * To set the data with a preserved undo stack and add the change to the undo stack, set `{ isUndoable: true }` as a `batchType` option.\n\t *\n\t *\t\tdataController.set( '<p>Foo</p>', { batchType: { isUndoable: true } } );\n\t *\n\t * @fires set\n\t * @param {String|Object.<String,String>} data Input data as a string or an object containing the `rootName` - `data`\n\t * pairs to set data on multiple roots at once.\n\t * @param {Object} [options={}] Options for setting data.\n\t * @param {Object} [options.batchType] The batch type that will be used to create a batch for the changes applied by this method.\n\t * By default, the batch will be set as {@link module:engine/model/batch~Batch#isUndoable not undoable} and the undo stack will be\n\t * cleared after the new data is applied (all undo steps will be removed). If the batch type `isUndoable` flag is be set to `true`,\n\t * the undo stack will be preserved instead and not cleared when new data is applied.\n\t */\n\tpublic set( data: string | Record<string, string>, options: { batchType?: BatchType } = {} ): void {\n\t\tlet newData: Record<string, string> = {};\n\n\t\tif ( typeof data === 'string' ) {\n\t\t\tnewData.main = data; // The default root is 'main'. To set data on a different root, an object should be passed.\n\t\t} else {\n\t\t\tnewData = data;\n\t\t}\n\n\t\tif ( !this._checkIfRootsExists( Object.keys( newData ) ) ) {\n\t\t\t/**\n\t\t\t * Cannot set data on a non-existent root. This error is thrown when the {@link #set DataController#set() method}\n\t\t\t * is called with non-existent root name. For example, if there is an editor instance with only the default `main` root,\n\t\t\t * calling {@link #set} like:\n\t\t\t *\n\t\t\t * \t\tdata.set( { main: '<p>Foo</p>', root2: '<p>Bar</p>' } );\n\t\t\t *\n\t\t\t * will throw this error.\n\t\t\t *\n\t\t\t * @error datacontroller-set-non-existent-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-set-non-existent-root', this );\n\t\t}\n\n\t\tthis.model.enqueueChange( options.batchType || {}, writer => {\n\t\t\twriter.setSelection( null );\n\t\t\twriter.removeSelectionAttribute( this.model.document.selection.getAttributeKeys() );\n\n\t\t\tfor ( const rootName of Object.keys( newData ) ) {\n\t\t\t\t// Save to model.\n\t\t\t\tconst modelRoot = this.model.document.getRoot( rootName )!;\n\n\t\t\t\twriter.remove( writer.createRangeIn( modelRoot ) );\n\t\t\t\twriter.insert( this.parse( newData[ rootName ], modelRoot ), modelRoot, 0 );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the data parsed by the {@link #processor data processor} and then converted by upcast converters\n\t * attached to the {@link #upcastDispatcher}.\n\t *\n\t * @see #set\n\t * @param {String} data Data to parse.\n\t * @param {module:engine/model/schema~SchemaContextDefinition} [context='$root'] Base context in which the view will\n\t * be converted to the model. See: {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#convert}.\n\t * @returns {module:engine/model/documentfragment~DocumentFragment} Parsed data.\n\t */\n\tpublic parse( data: string, context: SchemaContextDefinition = '$root' ): ModelDocumentFragment {\n\t\t// data -> view\n\t\tconst viewDocumentFragment = this.processor.toView( data );\n\n\t\t// view -> model\n\t\treturn this.toModel( viewDocumentFragment, context );\n\t}\n\n\t/**\n\t * Returns the result of the given {@link module:engine/view/element~Element view element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment view document fragment} converted by the\n\t * {@link #upcastDispatcher view-to-model converters}, wrapped by {@link module:engine/model/documentfragment~DocumentFragment}.\n\t *\n\t * When marker elements were converted during the conversion process, it will be set as a document fragment's\n\t * {@link module:engine/model/documentfragment~DocumentFragment#markers static markers map}.\n\t *\n\t * @param {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment} viewElementOrFragment\n\t * The element or document fragment whose content will be converted.\n\t * @param {module:engine/model/schema~SchemaContextDefinition} [context='$root'] Base context in which the view will\n\t * be converted to the model. See: {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#convert}.\n\t * @returns {module:engine/model/documentfragment~DocumentFragment} Output document fragment.\n\t */\n\tpublic toModel(\n\t\tviewElementOrFragment: ViewElement | ViewDocumentFragment,\n\t\tcontext: SchemaContextDefinition = '$root'\n\t): ModelDocumentFragment {\n\t\treturn this.model.change( writer => {\n\t\t\treturn this.upcastDispatcher.convert( viewElementOrFragment, writer, context );\n\t\t} );\n\t}\n\n\t/**\n\t * Adds the style processor normalization rules.\n\t *\n\t * You can implement your own rules as well as use one of the available processor rules:\n\t *\n\t * * background: {@link module:engine/view/styles/background~addBackgroundRules}\n\t * * border: {@link module:engine/view/styles/border~addBorderRules}\n\t * * margin: {@link module:engine/view/styles/margin~addMarginRules}\n\t * * padding: {@link module:engine/view/styles/padding~addPaddingRules}\n\t *\n\t * @param {Function} callback\n\t */\n\tpublic addStyleProcessorRules( callback: ( stylesProcessor: StylesProcessor ) => void ): void {\n\t\tcallback( this.stylesProcessor );\n\t}\n\n\t/**\n\t * Registers a {@link module:engine/view/matcher~MatcherPattern} on an {@link #htmlProcessor htmlProcessor}\n\t * and a {@link #processor processor} for view elements whose content should be treated as raw data\n\t * and not processed during the conversion from DOM to view elements.\n\t *\n\t * The raw data can be later accessed by the {@link module:engine/view/element~Element#getCustomProperty view element custom property}\n\t * `\"$rawContent\"`.\n\t *\n\t * @param {module:engine/view/matcher~MatcherPattern} pattern Pattern matching all view elements whose content should\n\t * be treated as a raw data.\n\t */\n\tpublic registerRawContentMatcher( pattern: MatcherPattern ): void {\n\t\t// No need to register the pattern if both the `htmlProcessor` and `processor` are the same instances.\n\t\tif ( this.processor && this.processor !== this.htmlProcessor ) {\n\t\t\tthis.processor.registerRawContentMatcher( pattern );\n\t\t}\n\n\t\tthis.htmlProcessor.registerRawContentMatcher( pattern );\n\t}\n\n\t/**\n\t * Removes all event listeners set by the DataController.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Checks whether all provided root names are actually existing editor roots.\n\t *\n\t * @private\n\t * @param {Array.<String>} rootNames Root names to check.\n\t * @returns {Boolean} Whether all provided root names are existing editor roots.\n\t */\n\tprivate _checkIfRootsExists( rootNames: Array<string> ): boolean {\n\t\tfor ( const rootName of rootNames ) {\n\t\t\tif ( !this.model.document.getRootNames().includes( rootName ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Event fired once the data initialization has finished.\n\t *\n\t * @event ready\n\t */\n\n\t/**\n\t * An event fired after the {@link #init `init()` method} was run. It can be {@link #listenTo listened to} in order to adjust or modify\n\t * the initialization flow. However, if the `init` event is stopped or prevented, the {@link #event:ready `ready` event}\n\t * should be fired manually.\n\t *\n\t * The `init` event is fired by the decorated {@link #init} method.\n\t * See {@link module:utils/observablemixin~ObservableMixin#decorate} for more information and samples.\n\t *\n\t * @event init\n\t */\n\n\t/**\n\t * An event fired after {@link #set set() method} has been run.\n\t *\n\t * The `set` event is fired by the decorated {@link #set} method.\n\t * See {@link module:utils/observablemixin~ObservableMixin#decorate} for more information and samples.\n\t *\n\t * @event set\n\t */\n\n\t/**\n\t * Event fired after the {@link #get get() method} has been run.\n\t *\n\t * The `get` event is fired by the decorated {@link #get} method.\n\t * See {@link module:utils/observablemixin~ObservableMixin#decorate} for more information and samples.\n\t *\n\t * @event get\n\t */\n}\n\n// Helper function for downcast conversion.\n//\n// Takes a document element (element that is added to a model document) and checks which markers are inside it. If the marker is collapsed\n// at element boundary, it is considered as contained inside the element and marker range is returned. Otherwise, if the marker is\n// intersecting with the element, the intersection is returned.\nfunction _getMarkersRelativeToElement( element: ModelElement ): Map<string, ModelRange> {\n\tconst result: Array<[ string, ModelRange ]> = [];\n\tconst doc = element.root.document;\n\n\tif ( !doc ) {\n\t\treturn new Map();\n\t}\n\n\tconst elementRange = ModelRange._createIn( element );\n\n\tfor ( const marker of doc.model.markers ) {\n\t\tconst markerRange = marker.getRange();\n\n\t\tconst isMarkerCollapsed = markerRange.isCollapsed;\n\t\tconst isMarkerAtElementBoundary = markerRange.start.isEqual( elementRange.start ) || markerRange.end.isEqual( elementRange.end );\n\n\t\tif ( isMarkerCollapsed && isMarkerAtElementBoundary ) {\n\t\t\tresult.push( [ marker.name, markerRange ] );\n\t\t} else {\n\t\t\tconst updatedMarkerRange = elementRange.getIntersection( markerRange );\n\n\t\t\tif ( updatedMarkerRange ) {\n\t\t\t\tresult.push( [ marker.name, updatedMarkerRange ] );\n\t\t\t}\n\t\t}\n\t}\n\n\t// Sort the markers in a stable fashion to ensure that the order in which they are\n\t// added to the model's marker collection does not affect how they are\n\t// downcast. One particular use case that we are targeting here, is one where\n\t// two markers are adjacent but not overlapping, such as an insertion/deletion\n\t// suggestion pair representing the replacement of a range of text. In this\n\t// case, putting the markers in DOM order causes the first marker's end to be\n\t// serialized right after the second marker's start, while putting the markers\n\t// in reverse DOM order causes it to be right before the second marker's\n\t// start. So, we sort these in a way that ensures non-intersecting ranges are in\n\t// reverse DOM order, and intersecting ranges are in something approximating\n\t// reverse DOM order (since reverse DOM order doesn't have a precise meaning\n\t// when working with intersecting ranges).\n\tresult.sort( ( [ n1, r1 ], [ n2, r2 ] ) => {\n\t\tif ( r1.end.compareWith( r2.start ) !== 'after' ) {\n\t\t\t// m1.end <= m2.start -- m1 is entirely <= m2\n\t\t\treturn 1;\n\t\t} else if ( r1.start.compareWith( r2.end ) !== 'before' ) {\n\t\t\t// m1.start >= m2.end -- m1 is entirely >= m2\n\t\t\treturn -1;\n\t\t} else {\n\t\t\t// they overlap, so use their start positions as the primary sort key and\n\t\t\t// end positions as the secondary sort key\n\t\t\tswitch ( r1.start.compareWith( r2.start ) ) {\n\t\t\t\tcase 'before':\n\t\t\t\t\treturn 1;\n\t\t\t\tcase 'after':\n\t\t\t\t\treturn -1;\n\t\t\t\tdefault:\n\t\t\t\t\tswitch ( r1.end.compareWith( r2.end ) ) {\n\t\t\t\t\t\tcase 'before':\n\t\t\t\t\t\t\treturn 1;\n\t\t\t\t\t\tcase 'after':\n\t\t\t\t\t\t\treturn -1;\n\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\treturn n2.localeCompare( n1 );\n\t\t\t\t\t}\n\t\t\t}\n\t\t}\n\t} );\n\n\treturn new Map( result );\n}\n\nexport type DataControllerInitEvent = {\n\tname: 'init';\n\targs: [ Parameters<DataController[ 'init' ]> ];\n\treturn: ReturnType<DataController[ 'init' ]>;\n};\n\nexport type DataControllerSetEvent = {\n\tname: 'set';\n\targs: [ Parameters<DataController[ 'set' ]> ];\n\treturn: ReturnType<DataController[ 'set' ]>;\n};\n\nexport type DataControllerGetEvent = {\n\tname: 'get';\n\targs: [ Parameters<DataController[ 'get' ]> ];\n\treturn: ReturnType<DataController[ 'get' ]>;\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/conversion\n */\n\nimport {\n\tCKEditorError,\n\ttoArray,\n\ttype ArrayOrItem,\n\ttype PriorityString\n} from '@ckeditor/ckeditor5-utils';\n\nimport UpcastHelpers from './upcasthelpers';\nimport DowncastHelpers, {\n\ttype AttributeCreatorFunction,\n\ttype AttributeDescriptor\n} from './downcasthelpers';\n\nimport type DowncastDispatcher from './downcastdispatcher';\nimport type UpcastDispatcher from './upcastdispatcher';\nimport type ElementDefinition from '../view/elementdefinition';\nimport type { MatcherPattern } from '../view/matcher';\n\n/**\n * A utility class that helps add converters to upcast and downcast dispatchers.\n *\n * We recommend reading the {@glink framework/guides/deep-dive/conversion/intro editor conversion} guide first to\n * understand the core concepts of the conversion mechanisms.\n *\n * An instance of the conversion manager is available in the\n * {@link module:core/editor/editor~Editor#conversion `editor.conversion`} property\n * and by default has the following groups of dispatchers (i.e. directions of conversion):\n *\n * * `downcast` (editing and data downcasts)\n * * `editingDowncast`\n * * `dataDowncast`\n * * `upcast`\n *\n * # One-way converters\n *\n * To add a converter to a specific group, use the {@link module:engine/conversion/conversion~Conversion#for `for()`}\n * method:\n *\n *\t\t// Add a converter to editing downcast and data downcast.\n *\t\teditor.conversion.for( 'downcast' ).elementToElement( config ) );\n *\n *\t\t// Add a converter to the data pipepline only:\n *\t\teditor.conversion.for( 'dataDowncast' ).elementToElement( dataConversionConfig ) );\n *\n *\t\t// And a slightly different one for the editing pipeline:\n *\t\teditor.conversion.for( 'editingDowncast' ).elementToElement( editingConversionConfig ) );\n *\n * See {@link module:engine/conversion/conversion~Conversion#for `for()`} method documentation to learn more about\n * available conversion helpers and how to use your custom ones.\n *\n * # Two-way converters\n *\n * Besides using one-way converters via the `for()` method, you can also use other methods available in this\n * class to add two-way converters (upcast and downcast):\n *\n * * {@link module:engine/conversion/conversion~Conversion#elementToElement `elementToElement()`} &ndash;\n * Model element to view element and vice versa.\n * * {@link module:engine/conversion/conversion~Conversion#attributeToElement `attributeToElement()`} &ndash;\n * Model attribute to view element and vice versa.\n * * {@link module:engine/conversion/conversion~Conversion#attributeToAttribute `attributeToAttribute()`} &ndash;\n * Model attribute to view attribute and vice versa.\n */\nexport default class Conversion {\n\tprivate readonly _helpers: Map<string, DowncastHelpers | UpcastHelpers>;\n\tprivate readonly _downcast: Array<DowncastDispatcher>;\n\tprivate readonly _upcast: Array<UpcastDispatcher>;\n\n\t/**\n\t * Creates a new conversion instance.\n\t *\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastDispatcher|\n\t * Array.<module:engine/conversion/downcastdispatcher~DowncastDispatcher>} downcastDispatchers\n\t * @param {module:engine/conversion/upcastdispatcher~UpcastDispatcher|\n\t * Array.<module:engine/conversion/upcastdispatcher~UpcastDispatcher>} upcastDispatchers\n\t */\n\tconstructor(\n\t\tdowncastDispatchers: ArrayOrItem<DowncastDispatcher>,\n\t\tupcastDispatchers: ArrayOrItem<UpcastDispatcher>\n\t) {\n\t\t/**\n\t\t * Maps dispatchers group name to ConversionHelpers instances.\n\t\t *\n\t\t * @private\n\t\t * @member {Map.<String,module:engine/conversion/conversionhelpers~ConversionHelpers>}\n\t\t */\n\t\tthis._helpers = new Map();\n\n\t\t// Define default 'downcast' & 'upcast' dispatchers groups. Those groups are always available as two-way converters needs them.\n\t\tthis._downcast = toArray( downcastDispatchers );\n\t\tthis._createConversionHelpers( { name: 'downcast', dispatchers: this._downcast, isDowncast: true } );\n\n\t\tthis._upcast = toArray( upcastDispatchers );\n\t\tthis._createConversionHelpers( { name: 'upcast', dispatchers: this._upcast, isDowncast: false } );\n\t}\n\n\tpublic addAlias(\n\t\talias: `${ string }Downcast`,\n\t\tdispatcher: DowncastDispatcher\n\t): void;\n\tpublic addAlias(\n\t\talias: `${ string }Upcast`,\n\t\tdispatcher: UpcastDispatcher\n\t): void;\n\tpublic addAlias(\n\t\talias: string,\n\t\tdispatcher: DowncastDispatcher | UpcastDispatcher\n\t): void;\n\n\t/**\n\t * Define an alias for registered dispatcher.\n\t *\n\t *\t\tconst conversion = new Conversion(\n\t *\t\t\t[ dataDowncastDispatcher, editingDowncastDispatcher ],\n\t *\t\t\tupcastDispatcher\n\t *\t\t);\n\t *\n\t *\t\tconversion.addAlias( 'dataDowncast', dataDowncastDispatcher );\n\t *\n\t * @param {String} alias An alias of a dispatcher.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastDispatcher|\n\t * module:engine/conversion/upcastdispatcher~UpcastDispatcher} dispatcher Dispatcher which should have an alias.\n\t */\n\tpublic addAlias(\n\t\talias: string,\n\t\tdispatcher: DowncastDispatcher | UpcastDispatcher\n\t): void {\n\t\tconst isDowncast = this._downcast.includes( dispatcher as any );\n\t\tconst isUpcast = this._upcast.includes( dispatcher as any );\n\n\t\tif ( !isUpcast && !isDowncast ) {\n\t\t\t/**\n\t\t\t * Trying to register an alias for a dispatcher that nas not been registered.\n\t\t\t *\n\t\t\t * @error conversion-add-alias-dispatcher-not-registered\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'conversion-add-alias-dispatcher-not-registered',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tthis._createConversionHelpers( { name: alias, dispatchers: [ dispatcher ], isDowncast } );\n\t}\n\n\tpublic for( groupName: 'downcast' | `${ string }Downcast` ): DowncastHelpers;\n\tpublic for( groupName: 'upcast' | `${ string }Upcast` ): UpcastHelpers;\n\tpublic for( groupName: string ): DowncastHelpers | UpcastHelpers;\n\n\t/**\n\t * Provides a chainable API to assign converters to a conversion dispatchers group.\n\t *\n\t * If the given group name has not been registered, the\n\t * {@link module:utils/ckeditorerror~CKEditorError `conversion-for-unknown-group` error} is thrown.\n\t *\n\t * You can use conversion helpers available directly in the `for()` chain or your custom ones via\n\t * the {@link module:engine/conversion/conversionhelpers~ConversionHelpers#add `add()`} method.\n\t *\n\t * # Using built-in conversion helpers\n\t *\n\t * The `for()` chain comes with a set of conversion helpers which you can use like this:\n\t *\n\t *\t\teditor.conversion.for( 'downcast' )\n\t *\t\t\t.elementToElement( config1 )        // Adds an element-to-element downcast converter.\n\t *\t\t\t.attributeToElement( config2 );     // Adds an attribute-to-element downcast converter.\n\t *\n\t *\t\teditor.conversion.for( 'upcast' )\n\t *\t\t\t.elementToAttribute( config3 );     // Adds an element-to-attribute upcast converter.\n\t *\n\t * Refer to the documentation of built-in conversion helpers to learn about their configuration options.\n\t *\n\t * * downcast (model-to-view) conversion helpers:\n\t *\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`},\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement `attributeToElement()`},\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToAttribute `attributeToAttribute()`}.\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToElement `markerToElement()`}.\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToHighlight `markerToHighlight()`}.\n\t *\n\t * * upcast (view-to-model) conversion helpers:\n\t *\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToElement `elementToElement()`},\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToAttribute `elementToAttribute()`},\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#attributeToAttribute `attributeToAttribute()`}.\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToMarker `elementToMarker()`}.\n\t *\n\t * # Using custom conversion helpers\n\t *\n\t * If you need to implement an atypical converter, you can do so by calling:\n\t *\n\t *\t\teditor.conversion.for( direction ).add( customHelper );\n\t *\n\t * The `.add()` method takes exactly one parameter, which is a function. This function should accept one parameter that\n\t * is a dispatcher instance. The function should add an actual converter to the passed dispatcher instance.\n\t *\n\t * Example:\n\t *\n\t *\t\teditor.conversion.for( 'upcast' ).add( dispatcher => {\n\t *\t\t\tdispatcher.on( 'element:a',  ( evt, data, conversionApi ) => {\n\t *\t\t\t\t// Do something with a view <a> element.\n\t *\t\t\t} );\n\t *\t\t} );\n\t *\n\t * Refer to the documentation of {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher}\n\t * and {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} to learn how to write\n\t * custom converters.\n\t *\n\t * @param {String} groupName The name of dispatchers group to add the converters to.\n\t * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers|module:engine/conversion/upcasthelpers~UpcastHelpers}\n\t */\n\tpublic for( groupName: string ): DowncastHelpers | UpcastHelpers {\n\t\tif ( !this._helpers.has( groupName ) ) {\n\t\t\t/**\n\t\t\t * Trying to add a converter to an unknown dispatchers group.\n\t\t\t *\n\t\t\t * @error conversion-for-unknown-group\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-for-unknown-group', this );\n\t\t}\n\n\t\treturn this._helpers.get( groupName )!;\n\t}\n\n\t/**\n\t * Sets up converters between the model and the view that convert a model element to a view element (and vice versa).\n\t * For example, the model `<paragraph>Foo</paragraph>` is turned into `<p>Foo</p>` in the view.\n\t *\n\t *\t\t// A simple conversion from the `paragraph` model element to the `<p>` view element (and vice versa).\n\t *\t\teditor.conversion.elementToElement( { model: 'paragraph', view: 'p' } );\n\t *\n\t *\t\t// Override other converters by specifying a converter definition with a higher priority.\n\t *\t\teditor.conversion.elementToElement( { model: 'paragraph', view: 'div', converterPriority: 'high' } );\n\t *\n\t *\t\t// View specified as an object instead of a string.\n\t *\t\teditor.conversion.elementToElement( {\n\t *\t\t\tmodel: 'fancyParagraph',\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'p',\n\t *\t\t\t\tclasses: 'fancy'\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\t// Use `upcastAlso` to define other view elements that should also be converted to a `paragraph` element.\n\t *\t\teditor.conversion.elementToElement( {\n\t *\t\t\tmodel: 'paragraph',\n\t *\t\t\tview: 'p',\n\t *\t\t\tupcastAlso: [\n\t *\t\t\t\t'div',\n\t *\t\t\t\t{\n\t *\t\t\t\t\t// Any element with the `display: block` style.\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\tdisplay: 'block'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t]\n\t *\t\t} );\n\t *\n\t *\t\t// `upcastAlso` set as callback enables a conversion of a wide range of different view elements.\n\t *\t\teditor.conversion.elementToElement( {\n\t *\t\t\tmodel: 'heading',\n\t *\t\t\tview: 'h2',\n\t *\t\t\t// Convert \"heading-like\" paragraphs to headings.\n\t *\t\t\tupcastAlso: viewElement => {\n\t *\t\t\t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t *\n\t *\t\t\t\tif ( !fontSize ) {\n\t *\t\t\t\t\treturn null;\n\t *\t\t\t\t}\n\t *\n\t *\t\t\t\tconst match = fontSize.match( /(\\d+)\\s*px/ );\n\t *\n\t *\t\t\t\tif ( !match ) {\n\t *\t\t\t\t\treturn null;\n\t *\t\t\t\t}\n\t *\n\t *\t\t\t\tconst size = Number( match[ 1 ] );\n\t *\n\t *\t\t\t\tif ( size > 26 ) {\n\t *\t\t\t\t\t// Returned value can be an object with the matched properties.\n\t *\t\t\t\t\t// These properties will be \"consumed\" during the conversion.\n\t *\t\t\t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t *\t\t\t\t\treturn { name: true, styles: [ 'font-size' ] };\n\t *\t\t\t\t}\n\t *\n\t *\t\t\t\treturn null;\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * `definition.model` is a `String` with a model element name to convert from or to.\n\t * See {@link module:engine/conversion/conversion~ConverterDefinition} to learn about other parameters.\n\t *\n\t * @param {module:engine/conversion/conversion~ConverterDefinition} definition The converter definition.\n\t */\n\tpublic elementToElement( definition: {\n\t\tmodel: string;\n\t\tview: ElementDefinition;\n\t\tupcastAlso?: ArrayOrItem<ElementDefinition | MatcherPattern>;\n\t\tconverterPriority?: PriorityString;\n\t} ): void {\n\t\t// Set up downcast converter.\n\t\tthis.for( 'downcast' ).elementToElement( definition );\n\n\t\t// Set up upcast converter.\n\t\tfor ( const { model, view } of _getAllUpcastDefinitions( definition ) ) {\n\t\t\tthis.for( 'upcast' )\n\t\t\t\t.elementToElement( {\n\t\t\t\t\tmodel,\n\t\t\t\t\tview,\n\t\t\t\t\tconverterPriority: definition.converterPriority\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Sets up converters between the model and the view that convert a model attribute to a view element (and vice versa).\n\t * For example, a model text node with `\"Foo\"` as data and the `bold` attribute will be turned to `<strong>Foo</strong>` in the view.\n\t *\n\t *\t\t// A simple conversion from the `bold=true` attribute to the `<strong>` view element (and vice versa).\n\t *\t\teditor.conversion.attributeToElement( { model: 'bold', view: 'strong' } );\n\t *\n\t *\t\t// Override other converters by specifying a converter definition with a higher priority.\n\t *\t\teditor.conversion.attributeToElement( { model: 'bold', view: 'b', converterPriority: 'high' } );\n\t *\n\t *\t\t// View specified as an object instead of a string.\n\t *\t\teditor.conversion.attributeToElement( {\n\t *\t\t\tmodel: 'bold',\n\t *\t\t\tview: {\n\t *\t\t\t\tname: 'span',\n\t *\t\t\t\tclasses: 'bold'\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\t// Use `config.model.name` to define the conversion only from a given node type, `$text` in this case.\n\t *\t\t// The same attribute on different elements may then be handled by a different converter.\n\t *\t\teditor.conversion.attributeToElement( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'textDecoration',\n\t *\t\t\t\tvalues: [ 'underline', 'lineThrough' ],\n\t *\t\t\t\tname: '$text'\n\t *\t\t\t},\n\t *\t\t\tview: {\n\t *\t\t\t\tunderline: {\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'text-decoration': 'underline'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t},\n\t *\t\t\t\tlineThrough: {\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'text-decoration': 'line-through'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\t// Use `upcastAlso` to define other view elements that should also be converted to the `bold` attribute.\n\t *\t\teditor.conversion.attributeToElement( {\n\t *\t\t\tmodel: 'bold',\n\t *\t\t\tview: 'strong',\n\t *\t\t\tupcastAlso: [\n\t *\t\t\t\t'b',\n\t *\t\t\t\t{\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tclasses: 'bold'\n\t *\t\t\t\t},\n\t *\t\t\t\t{\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'font-weight': 'bold'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t},\n\t *\t\t\t\tviewElement => {\n\t *\t\t\t\t\tconst fontWeight = viewElement.getStyle( 'font-weight' );\n\t *\n\t *\t\t\t\t\tif ( viewElement.is( 'element', 'span' ) && fontWeight && /\\d+/.test() && Number( fontWeight ) > 500 ) {\n\t *\t\t\t\t\t\t// Returned value can be an object with the matched properties.\n\t *\t\t\t\t\t\t// These properties will be \"consumed\" during the conversion.\n\t *\t\t\t\t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t *\t\t\t\t\t\treturn {\n\t *\t\t\t\t\t\t\tname: true,\n\t *\t\t\t\t\t\t\tstyles: [ 'font-weight' ]\n\t *\t\t\t\t\t\t};\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t]\n\t *\t\t} );\n\t *\n\t *\t\t// Conversion from and to a model attribute key whose value is an enum (`fontSize=big|small`).\n\t *\t\t// `upcastAlso` set as callback enables a conversion of a wide range of different view elements.\n\t *\t\teditor.conversion.attributeToElement( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'fontSize',\n\t *\t\t\t\tvalues: [ 'big', 'small' ]\n\t *\t\t\t},\n\t *\t\t\tview: {\n\t *\t\t\t\tbig: {\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'font-size': '1.2em'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t},\n\t *\t\t\t\tsmall: {\n\t *\t\t\t\t\tname: 'span',\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'font-size': '0.8em'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t},\n\t *\t\t\tupcastAlso: {\n\t *\t\t\t\tbig: viewElement => {\n\t *\t\t\t\t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t *\n\t *\t\t\t\t\tif ( !fontSize ) {\n\t *\t\t\t\t\t\treturn null;\n\t *\t\t\t\t\t}\n\t *\n\t *\t\t\t\t\tconst match = fontSize.match( /(\\d+)\\s*px/ );\n\t *\n\t *\t\t\t\t\tif ( !match ) {\n\t *\t\t\t\t\t\treturn null;\n\t *\t\t\t\t\t}\n\t *\n\t *\t\t\t\t\tconst size = Number( match[ 1 ] );\n\t *\n\t *\t\t\t\t\tif ( viewElement.is( 'element', 'span' ) && size > 10 ) {\n\t *\t\t\t\t\t\t// Returned value can be an object with the matched properties.\n\t *\t\t\t\t\t\t// These properties will be \"consumed\" during the conversion.\n\t *\t\t\t\t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t *\t\t\t\t\t\treturn { name: true, styles: [ 'font-size' ] };\n\t *\t\t\t\t\t}\n\t *\n\t *\t\t\t\t\treturn null;\n\t *\t\t\t\t},\n\t *\t\t\t\tsmall: viewElement => {\n\t *\t\t\t\t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t *\n\t *\t\t\t\t\tif ( !fontSize ) {\n\t *\t\t\t\t\t\treturn null;\n\t *\t\t\t\t\t}\n\t *\n\t *\t\t\t\t\tconst match = fontSize.match( /(\\d+)\\s*px/ );\n\t *\n\t *\t\t\t\t\tif ( !match ) {\n\t *\t\t\t\t\t\treturn null;\n\t *\t\t\t\t\t}\n\t *\n\t *\t\t\t\t\tconst size = Number( match[ 1 ] );\n\t *\n\t *\t\t\t\t\tif ( viewElement.is( 'element', 'span' ) && size < 10 ) {\n\t *\t\t\t\t\t\t// Returned value can be an object with the matched properties.\n\t *\t\t\t\t\t\t// These properties will be \"consumed\" during the conversion.\n\t *\t\t\t\t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t *\t\t\t\t\t\treturn { name: true, styles: [ 'font-size' ] };\n\t *\t\t\t\t\t}\n\t *\n\t *\t\t\t\t\treturn null;\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * The `definition.model` parameter specifies which model attribute should be converted from or to. It can be a `{ key, value }` object\n\t * describing the attribute key and value to convert or a `String` specifying just the attribute key (in such a case\n\t * `value` is set to `true`).\n\t * See {@link module:engine/conversion/conversion~ConverterDefinition} to learn about other parameters.\n\t *\n\t * @param {module:engine/conversion/conversion~ConverterDefinition} definition The converter definition.\n\t */\n\tpublic attributeToElement<TValues extends string>(\n\t\tdefinition: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: ElementDefinition;\n\t\t\tupcastAlso?: ArrayOrItem<MatcherPattern>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, ElementDefinition>;\n\t\t\tupcastAlso?: Record<TValues, MatcherPattern>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t}\n\t): void {\n\t\t// Set up downcast converter.\n\t\tthis.for( 'downcast' ).attributeToElement( definition );\n\n\t\t// Set up upcast converter.\n\t\tfor ( const { model, view } of _getAllUpcastDefinitions( definition ) ) {\n\t\t\tthis.for( 'upcast' )\n\t\t\t\t.elementToAttribute( {\n\t\t\t\t\tview,\n\t\t\t\t\tmodel,\n\t\t\t\t\tconverterPriority: definition.converterPriority\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Sets up converters between the model and the view that convert a model attribute to a view attribute (and vice versa). For example,\n\t * `<imageBlock src='foo.jpg'></imageBlock>` is converted to `<img src='foo.jpg'></img>` (the same attribute key and value).\n\t * This type of converters is intended to be used with {@link module:engine/model/element~Element model element} nodes.\n\t * To convert the text attributes,\n\t * the {@link module:engine/conversion/conversion~Conversion#attributeToElement `attributeToElement converter`}should be set up.\n\t *\n\t *\t\t// A simple conversion from the `source` model attribute to the `src` view attribute (and vice versa).\n\t *\t\teditor.conversion.attributeToAttribute( { model: 'source', view: 'src' } );\n\t *\n\t *\t\t// Attribute values are strictly specified.\n\t *\t\teditor.conversion.attributeToAttribute( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tname: 'imageInline',\n\t *\t\t\t\tkey: 'aside',\n\t *\t\t\t\tvalues: [ 'aside' ]\n\t *\t\t\t},\n\t *\t\t\tview: {\n\t *\t\t\t\taside: {\n\t *\t\t\t\t\tname: 'img',\n\t *\t\t\t\t\tkey: 'class',\n\t *\t\t\t\t\tvalue: [ 'aside', 'half-size' ]\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\t// Set the style attribute.\n\t *\t\teditor.conversion.attributeToAttribute( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tname: 'imageInline',\n\t *\t\t\t\tkey: 'aside',\n\t *\t\t\t\tvalues: [ 'aside' ]\n\t *\t\t\t},\n\t *\t\t\tview: {\n\t *\t\t\t\taside: {\n\t *\t\t\t\t\tname: 'img',\n\t *\t\t\t\t\tkey: 'style',\n\t *\t\t\t\t\tvalue: {\n\t *\t\t\t\t\t\tfloat: 'right',\n\t *\t\t\t\t\t\twidth: '50%',\n\t *\t\t\t\t\t\tmargin: '5px'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\t// Conversion from and to a model attribute key whose value is an enum (`align=right|center`).\n\t *\t\t// Use `upcastAlso` to define other view elements that should also be converted to the `align=right` attribute.\n\t *\t\teditor.conversion.attributeToAttribute( {\n\t *\t\t\tmodel: {\n\t *\t\t\t\tkey: 'align',\n\t *\t\t\t\tvalues: [ 'right', 'center' ]\n\t *\t\t\t},\n\t *\t\t\tview: {\n\t *\t\t\t\tright: {\n\t *\t\t\t\t\tkey: 'class',\n\t *\t\t\t\t\tvalue: 'align-right'\n\t *\t\t\t\t},\n\t *\t\t\t\tcenter: {\n\t *\t\t\t\t\tkey: 'class',\n\t *\t\t\t\t\tvalue: 'align-center'\n\t *\t\t\t\t}\n\t *\t\t\t},\n\t *\t\t\tupcastAlso: {\n\t *\t\t\t\tright: {\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'text-align': 'right'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t},\n\t *\t\t\t\tcenter: {\n\t *\t\t\t\t\tstyles: {\n\t *\t\t\t\t\t\t'text-align': 'center'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * The `definition.model` parameter specifies which model attribute should be converted from and to.\n\t * It can be a `{ key, [ values ], [ name ] }` object or a `String`, which will be treated like `{ key: definition.model }`.\n\t * The `key` property is the model attribute key to convert from and to.\n\t * The `values` are the possible model attribute values. If the `values` parameter is not set, the model attribute value\n\t * will be the same as the view attribute value.\n\t * If `name` is set, the conversion will be set up only for model elements with the given name.\n\t *\n\t * The `definition.view` parameter specifies which view attribute should be converted from and to.\n\t * It can be a `{ key, value, [ name ] }` object or a `String`, which will be treated like `{ key: definition.view }`.\n\t * The `key` property is the view attribute key to convert from and to.\n\t * The `value` is the view attribute value to convert from and to. If `definition.value` is not set, the view attribute value will be\n\t * the same as the model attribute value.\n\t * If `key` is `'class'`, `value` can be a `String` or an array of `String`s.\n\t * If `key` is `'style'`, `value` is an object with key-value pairs.\n\t * In other cases, `value` is a `String`.\n\t * If `name` is set, the conversion will be set up only for model elements with the given name.\n\t * If `definition.model.values` is set, `definition.view` is an object that assigns values from `definition.model.values`\n\t * to `{ key, value, [ name ] }` objects.\n\t *\n\t * `definition.upcastAlso` specifies which other matching view elements should also be upcast to the given model configuration.\n\t * If `definition.model.values` is set, `definition.upcastAlso` should be an object assigning values from `definition.model.values`\n\t * to {@link module:engine/view/matcher~MatcherPattern}s or arrays of {@link module:engine/view/matcher~MatcherPattern}s.\n\t *\n\t * **Note:** `definition.model` and `definition.view` form should be mirrored, so the same types of parameters should\n\t * be given in both parameters.\n\t *\n\t * @param {Object} definition The converter definition.\n\t * @param {String|Object} definition.model The model attribute to convert from and to.\n\t * @param {String|Object} definition.view The view attribute to convert from and to.\n\t * @param {module:engine/view/matcher~MatcherPattern|Array.<module:engine/view/matcher~MatcherPattern>} [definition.upcastAlso]\n\t * Any view element matching `definition.upcastAlso` will also be converted to the given model attribute. `definition.upcastAlso`\n\t * is used only if `config.model.values` is specified.\n\t */\n\tpublic attributeToAttribute<TValues extends string>(\n\t\tdefinition: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: string | ( AttributeDescriptor & { name?: string } );\n\t\t\tupcastAlso?: ArrayOrItem<string | ( AttributeDescriptor & { name?: string } ) | AttributeCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, ( AttributeDescriptor & { name?: string } )>;\n\t\t\tupcastAlso?: Record<TValues, ( AttributeDescriptor & { name?: string } ) | AttributeCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} ): void {\n\t\t// Set up downcast converter.\n\t\tthis.for( 'downcast' ).attributeToAttribute( definition );\n\n\t\t// Set up upcast converter.\n\t\tfor ( const { model, view } of _getAllUpcastDefinitions( definition ) ) {\n\t\t\tthis.for( 'upcast' )\n\t\t\t\t.attributeToAttribute( {\n\t\t\t\t\tview,\n\t\t\t\t\tmodel\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Creates and caches conversion helpers for given dispatchers group.\n\t *\n\t * @private\n\t * @param {Object} options\n\t * @param {String} options.name Group name.\n\t * @param {Array.<module:engine/conversion/downcastdispatcher~DowncastDispatcher|\n\t * module:engine/conversion/upcastdispatcher~UpcastDispatcher>} options.dispatchers\n\t * @param {Boolean} options.isDowncast\n\t */\n\tprivate _createConversionHelpers(\n\t\t{ name, dispatchers, isDowncast }: {\n\t\t\tname: string;\n\t\t\tdispatchers: Array<DowncastDispatcher | UpcastDispatcher>;\n\t\t\tisDowncast: boolean;\n\t\t}\n\t): void {\n\t\tif ( this._helpers.has( name ) ) {\n\t\t\t/**\n\t\t\t * Trying to register a group name that has already been registered.\n\t\t\t *\n\t\t\t * @error conversion-group-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-group-exists', this );\n\t\t}\n\n\t\tconst helpers = isDowncast ?\n\t\t\tnew DowncastHelpers( dispatchers as Array<DowncastDispatcher> ) :\n\t\t\tnew UpcastHelpers( dispatchers as Array<UpcastDispatcher> );\n\n\t\tthis._helpers.set( name, helpers );\n\t}\n}\n\n/**\n * Defines how the model should be converted from and to the view.\n *\n * @typedef {Object} module:engine/conversion/conversion~ConverterDefinition\n *\n * @property {*} [model] The model conversion definition. Describes the model element or model attribute to convert. This parameter differs\n * for different functions that accept `ConverterDefinition`. See the description of the function to learn how to set it.\n * @property {module:engine/view/elementdefinition~ElementDefinition|Object} view The definition of the view element to convert from and\n * to. If `model` describes multiple values, `view` is an object that assigns these values (`view` object keys) to view element definitions\n * (`view` object values).\n * @property {module:engine/view/matcher~MatcherPattern|Array.<module:engine/view/matcher~MatcherPattern>} [upcastAlso]\n * Any view element matching `upcastAlso` will also be converted to the model. If `model` describes multiple values, `upcastAlso`\n * is an object that assigns these values (`upcastAlso` object keys) to {@link module:engine/view/matcher~MatcherPattern}s\n * (`upcastAlso` object values).\n * @property {module:utils/priorities~PriorityString} [converterPriority] The converter priority.\n */\n\n// Helper function that creates a joint array out of an item passed in `definition.view` and items passed in\n// `definition.upcastAlso`.\n//\n// @param {module:engine/conversion/conversion~ConverterDefinition} definition\n// @returns {Array} Array containing view definitions.\nfunction* _getAllUpcastDefinitions( definition: any ): IterableIterator<{ model: any; view: any }> {\n\tif ( definition.model.values ) {\n\t\tfor ( const value of definition.model.values ) {\n\t\t\tconst model = { key: definition.model.key, value };\n\t\t\tconst view = definition.view[ value ];\n\t\t\tconst upcastAlso = definition.upcastAlso ? definition.upcastAlso[ value ] : undefined;\n\n\t\t\tyield* _getUpcastDefinition( model, view, upcastAlso );\n\t\t}\n\t} else {\n\t\tyield* _getUpcastDefinition( definition.model, definition.view, definition.upcastAlso );\n\t}\n}\n\nfunction* _getUpcastDefinition( model: unknown, view: unknown, upcastAlso?: unknown ): any {\n\tyield { model, view };\n\n\tif ( upcastAlso ) {\n\t\tfor ( const upcastAlsoItem of toArray( upcastAlso ) ) {\n\t\t\tyield { model, view: upcastAlsoItem };\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-unused-vars */\n\nimport type Batch from '../batch';\nimport type Document from '../document';\n\n/**\n * @module engine/model/operation/operation\n */\n\n/**\n * Abstract base operation class.\n *\n * @abstract\n */\nexport default abstract class Operation {\n\tpublic baseVersion: number | null;\n\tpublic readonly isDocumentOperation: boolean;\n\tpublic batch: Batch | null;\n\tpublic readonly abstract type: string;\n\n\t/**\n\t * Base operation constructor.\n\t *\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( baseVersion: number | null ) {\n\t\t/**\n\t\t * {@link module:engine/model/document~Document#version} on which operation can be applied. If you try to\n\t\t * {@link module:engine/model/model~Model#applyOperation apply} operation with different base version than the\n\t\t * {@link module:engine/model/document~Document#version document version} the\n\t\t * {@link module:utils/ckeditorerror~CKEditorError model-document-applyOperation-wrong-version} error is thrown.\n\t\t *\n\t\t * @member {Number|null}\n\t\t */\n\t\tthis.baseVersion = baseVersion;\n\n\t\t/**\n\t\t * Defines whether operation is executed on attached or detached {@link module:engine/model/item~Item items}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} #isDocumentOperation\n\t\t */\n\t\tthis.isDocumentOperation = this.baseVersion !== null;\n\n\t\t/**\n\t\t * {@link module:engine/model/batch~Batch Batch} to which the operation is added or `null` if the operation is not\n\t\t * added to any batch yet.\n\t\t *\n\t\t * @member {module:engine/model/batch~Batch|null} #batch\n\t\t */\n\t\tthis.batch = null;\n\n\t\t/**\n\t\t * Operation type.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String} #type\n\t\t */\n\n\t\t/**\n\t\t * Creates and returns an operation that has the same parameters as this operation.\n\t\t *\n\t\t * @method #clone\n\t\t * @returns {module:engine/model/operation/operation~Operation} Clone of this operation.\n\t\t */\n\n\t\t/**\n\t\t * Creates and returns a reverse operation. Reverse operation when executed right after\n\t\t * the original operation will bring back tree model state to the point before the original\n\t\t * operation execution. In other words, it reverses changes done by the original operation.\n\t\t *\n\t\t * Keep in mind that tree model state may change since executing the original operation,\n\t\t * so reverse operation will be \"outdated\". In that case you will need to transform it by\n\t\t * all operations that were executed after the original operation.\n\t\t *\n\t\t * @method #getReversed\n\t\t * @returns {module:engine/model/operation/operation~Operation} Reversed operation.\n\t\t */\n\n\t\t/**\n\t\t * Executes the operation - modifications described by the operation properties will be applied to the model tree.\n\t\t *\n\t\t * @protected\n\t\t * @method #_execute\n\t\t */\n\t}\n\n\tpublic abstract clone(): Operation;\n\n\tpublic abstract getReversed(): Operation;\n\n\t/** @internal */\n\tpublic abstract _execute(): void;\n\n\t/**\n\t * Checks whether the operation's parameters are correct and the operation can be correctly executed. Throws\n\t * an error if operation is not valid.\n\t *\n\t * @internal\n\t * @protected\n\t * @method #_validate\n\t */\n\tpublic _validate(): void {\n\t}\n\n\t/**\n\t * Custom toJSON method to solve child-parent circular dependencies.\n\t *\n\t * @method #toJSON\n\t * @returns {Object} Clone of this object with the operation property replaced with string.\n\t */\n\tpublic toJSON(): unknown {\n\t\t// This method creates only a shallow copy, all nested objects should be defined separately.\n\t\t// See https://github.com/ckeditor/ckeditor5-engine/issues/1477.\n\t\tconst json: any = Object.assign( {}, this );\n\n\t\tjson.__className = ( this.constructor as any ).className;\n\n\t\t// Remove reference to the parent `Batch` to avoid circular dependencies.\n\t\tdelete json.batch;\n\n\t\t// Only document operations are shared with other clients so it is not necessary to keep this information.\n\t\tdelete json.isDocumentOperation;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Name of the operation class used for serialization.\n\t *\n\t * @type {String}\n\t */\n\tpublic static get className(): string {\n\t\treturn 'Operation';\n\t}\n\n\t/**\n\t * Creates Operation object from deserilized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} doc Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/operation~Operation}\n\t */\n\tpublic static fromJSON( json: any, document: Document ): Operation {\n\t\treturn new ( this as any )( json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.toString() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/utils\n */\n\nimport Node from '../node';\nimport Range from '../range';\nimport Text from '../text';\nimport TextProxy from '../textproxy';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Element from '../element';\nimport type Item from '../item';\nimport type NodeList from '../nodelist';\nimport type Position from '../position';\n\nimport { CKEditorError, isIterable } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Contains functions used for composing model tree by {@link module:engine/model/operation/operation~Operation operations}.\n * Those functions are built on top of {@link module:engine/model/node~Node node}, and it's child classes', APIs.\n *\n * @protected\n * @namespace utils\n */\n\n/**\n * Inserts given nodes at given position.\n *\n * @internal\n * @protected\n * @function module:engine/model/operation/utils~utils.insert\n * @param {module:engine/model/position~Position} position Position at which nodes should be inserted.\n * @param {module:engine/model/node~NodeSet} normalizedNodes Nodes to insert.\n * @returns {module:engine/model/range~Range} Range spanning over inserted elements.\n */\nexport function _insert( position: Position, nodes: NodeSet ): Range {\n\tconst normalizedNodes = _normalizeNodes( nodes );\n\n\t// We have to count offset before inserting nodes because they can get merged and we would get wrong offsets.\n\tconst offset = normalizedNodes.reduce( ( sum, node ) => sum + node.offsetSize, 0 );\n\tconst parent = position.parent;\n\n\t// Insertion might be in a text node, we should split it if that's the case.\n\t_splitNodeAtPosition( position );\n\tconst index = position.index;\n\n\t// Insert nodes at given index. After splitting we have a proper index and insertion is between nodes,\n\t// using basic `Element` API.\n\tparent._insertChild( index, normalizedNodes );\n\n\t// Merge text nodes, if possible. Merging is needed only at points where inserted nodes \"touch\" \"old\" nodes.\n\t_mergeNodesAtIndex( parent, index + normalizedNodes.length );\n\t_mergeNodesAtIndex( parent, index );\n\n\treturn new Range( position, position.getShiftedBy( offset ) );\n}\n\n/**\n * Removed nodes in given range. Only {@link module:engine/model/range~Range#isFlat flat} ranges are accepted.\n *\n * @internal\n * @protected\n * @function module:engine/model/operation/utils~utils._remove\n * @param {module:engine/model/range~Range} range Range containing nodes to remove.\n * @returns {Array.<module:engine/model/node~Node>}\n */\nexport function _remove( this: any, range: Range ): Array<Node> {\n\tif ( !range.isFlat ) {\n\t\t/**\n\t\t * Trying to remove a range which starts and ends in different element.\n\t\t *\n\t\t * @error operation-utils-remove-range-not-flat\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'operation-utils-remove-range-not-flat',\n\t\t\tthis\n\t\t);\n\t}\n\n\tconst parent = range.start.parent;\n\n\t// Range may be inside text nodes, we have to split them if that's the case.\n\t_splitNodeAtPosition( range.start );\n\t_splitNodeAtPosition( range.end );\n\n\t// Remove the text nodes using basic `Element` API.\n\tconst removed = parent._removeChildren( range.start.index, range.end.index - range.start.index );\n\n\t// Merge text nodes, if possible. After some nodes were removed, node before and after removed range will be\n\t// touching at the position equal to the removed range beginning. We check merging possibility there.\n\t_mergeNodesAtIndex( parent, range.start.index );\n\n\treturn removed;\n}\n\n/**\n * Moves nodes in given range to given target position. Only {@link module:engine/model/range~Range#isFlat flat} ranges are accepted.\n *\n * @internal\n * @protected\n * @function module:engine/model/operation/utils~utils.move\n * @param {module:engine/model/range~Range} sourceRange Range containing nodes to move.\n * @param {module:engine/model/position~Position} targetPosition Position to which nodes should be moved.\n * @returns {module:engine/model/range~Range} Range containing moved nodes.\n */\nexport function _move( this: any, sourceRange: Range, targetPosition: Position ): Range {\n\tif ( !sourceRange.isFlat ) {\n\t\t/**\n\t\t * Trying to move a range which starts and ends in different element.\n\t\t *\n\t\t * @error operation-utils-move-range-not-flat\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'operation-utils-move-range-not-flat',\n\t\t\tthis\n\t\t);\n\t}\n\n\tconst nodes = _remove( sourceRange );\n\n\t// We have to fix `targetPosition` because model changed after nodes from `sourceRange` got removed and\n\t// that change might have an impact on `targetPosition`.\n\ttargetPosition = targetPosition._getTransformedByDeletion( sourceRange.start, sourceRange.end.offset - sourceRange.start.offset )!;\n\n\treturn _insert( targetPosition, nodes );\n}\n\n/**\n * Sets given attribute on nodes in given range. The attributes are only set on top-level nodes of the range, not on its children.\n *\n * @internal\n * @protected\n * @function module:engine/model/operation/utils~utils._setAttribute\n * @param {module:engine/model/range~Range} range Range containing nodes that should have the attribute set. Must be a flat range.\n * @param {String} key Key of attribute to set.\n * @param {*} value Attribute value.\n */\nexport function _setAttribute( range: Range, key: string, value: unknown ): void {\n\t// Range might start or end in text nodes, so we have to split them.\n\t_splitNodeAtPosition( range.start );\n\t_splitNodeAtPosition( range.end );\n\n\t// Iterate over all items in the range.\n\tfor ( const item of range.getItems( { shallow: true } ) ) {\n\t\t// Iterator will return `TextProxy` instances but we know that those text proxies will\n\t\t// always represent full text nodes (this is guaranteed thanks to splitting we did before).\n\t\t// So, we can operate on those text proxies' text nodes.\n\t\tconst node = item.is( '$textProxy' ) ? item.textNode : item;\n\n\t\tif ( value !== null ) {\n\t\t\tnode._setAttribute( key, value );\n\t\t} else {\n\t\t\tnode._removeAttribute( key );\n\t\t}\n\n\t\t// After attributes changing it may happen that some text nodes can be merged. Try to merge with previous node.\n\t\t_mergeNodesAtIndex( node.parent!, node.index! );\n\t}\n\n\t// Try to merge last changed node with it's previous sibling (not covered by the loop above).\n\t_mergeNodesAtIndex( range.end.parent, range.end.index );\n}\n\n/**\n * Normalizes given object or an array of objects to an array of {@link module:engine/model/node~Node nodes}. See\n * {@link module:engine/model/node~NodeSet NodeSet} for details on how normalization is performed.\n *\n * @protected\n * @function module:engine/model/operation/utils~utils.normalizeNodes\n * @param {module:engine/model/node~NodeSet} nodes Objects to normalize.\n * @returns {Array.<module:engine/model/node~Node>} Normalized nodes.\n */\nexport function _normalizeNodes( nodes: NodeSet ): Array<Node> {\n\tconst normalized: Array<Node> = [];\n\n\tfunction convert( nodes: NodeSet ) {\n\t\tif ( typeof nodes == 'string' ) {\n\t\t\tnormalized.push( new Text( nodes ) );\n\t\t} else if ( nodes instanceof TextProxy ) {\n\t\t\tnormalized.push( new Text( nodes.data, nodes.getAttributes() ) );\n\t\t} else if ( nodes instanceof Node ) {\n\t\t\tnormalized.push( nodes );\n\t\t} else if ( isIterable( nodes ) ) {\n\t\t\tfor ( const node of nodes ) {\n\t\t\t\tconvert( node );\n\t\t\t}\n\t\t}\n\t\t// Skip unrecognized type.\n\t}\n\n\tconvert( nodes );\n\n\t// Merge text nodes.\n\tfor ( let i = 1; i < normalized.length; i++ ) {\n\t\tconst node = normalized[ i ];\n\t\tconst prev = normalized[ i - 1 ];\n\n\t\tif ( node instanceof Text && prev instanceof Text && _haveSameAttributes( node, prev ) ) {\n\t\t\t// Doing this instead changing `prev.data` because `data` is readonly.\n\t\t\tnormalized.splice( i - 1, 2, new Text( prev.data + node.data, prev.getAttributes() ) );\n\t\t\ti--;\n\t\t}\n\t}\n\n\treturn normalized;\n}\n\n// Checks if nodes before and after given index in given element are {@link module:engine/model/text~Text text nodes} and\n// merges them into one node if they have same attributes.\n//\n// Merging is done by removing two text nodes and inserting a new text node containing data from both merged text nodes.\n//\n// @private\n// @param {module:engine/model/element~Element} element Parent element of nodes to merge.\n// @param {Number} index Index between nodes to merge.\nfunction _mergeNodesAtIndex( element: Element | DocumentFragment, index: number ) {\n\tconst nodeBefore = element.getChild( index - 1 );\n\tconst nodeAfter = element.getChild( index );\n\n\t// Check if both of those nodes are text objects with same attributes.\n\tif ( nodeBefore && nodeAfter && nodeBefore.is( '$text' ) && nodeAfter.is( '$text' ) && _haveSameAttributes( nodeBefore, nodeAfter ) ) {\n\t\t// Append text of text node after index to the before one.\n\t\tconst mergedNode = new Text( nodeBefore.data + nodeAfter.data, nodeBefore.getAttributes() );\n\n\t\t// Remove separate text nodes.\n\t\telement._removeChildren( index - 1, 2 );\n\n\t\t// Insert merged text node.\n\t\telement._insertChild( index - 1, mergedNode );\n\t}\n}\n\n// Checks if given position is in a text node, and if so, splits the text node in two text nodes, each of them\n// containing a part of original text node.\n//\n// @private\n// @param {module:engine/model/position~Position} position Position at which node should be split.\nfunction _splitNodeAtPosition( position: Position ): void {\n\tconst textNode = position.textNode;\n\tconst element = position.parent;\n\n\tif ( textNode ) {\n\t\tconst offsetDiff = position.offset - textNode.startOffset!;\n\t\tconst index = textNode.index!;\n\n\t\telement._removeChildren( index, 1 );\n\n\t\tconst firstPart = new Text( textNode.data.substr( 0, offsetDiff ), textNode.getAttributes() );\n\t\tconst secondPart = new Text( textNode.data.substr( offsetDiff ), textNode.getAttributes() );\n\n\t\telement._insertChild( index, [ firstPart, secondPart ] );\n\t}\n}\n\n// Checks whether two given nodes have same attributes.\n//\n// @private\n// @param {module:engine/model/node~Node} nodeA Node to check.\n// @param {module:engine/model/node~Node} nodeB Node to check.\n// @returns {Boolean} `true` if nodes have same attributes, `false` otherwise.\nfunction _haveSameAttributes( nodeA: Node, nodeB: Node ): boolean | undefined {\n\tconst iteratorA = nodeA.getAttributes();\n\tconst iteratorB = nodeB.getAttributes();\n\n\tfor ( const attr of iteratorA ) {\n\t\tif ( attr[ 1 ] !== nodeB.getAttribute( attr[ 0 ] ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\titeratorB.next();\n\t}\n\n\treturn iteratorB.next().done;\n}\n\n/**\n * Value that can be normalized to an array of {@link module:engine/model/node~Node nodes}.\n *\n * Non-arrays are normalized as follows:\n * * {@link module:engine/model/node~Node Node} is left as is,\n * * {@link module:engine/model/textproxy~TextProxy TextProxy} and `String` are normalized to {@link module:engine/model/text~Text Text},\n * * {@link module:engine/model/nodelist~NodeList NodeList} is normalized to an array containing all nodes that are in that node list,\n * * {@link module:engine/model/documentfragment~DocumentFragment DocumentFragment} is normalized to an array containing all of it's\n * * children.\n *\n * Arrays are processed item by item like non-array values and flattened to one array. Normalization always results in\n * a flat array of {@link module:engine/model/node~Node nodes}. Consecutive text nodes (or items normalized to text nodes) will be\n * merged if they have same attributes.\n *\n * @typedef {module:engine/model/node~Node|module:engine/model/textproxy~TextProxy|String|\n * module:engine/model/nodelist~NodeList|module:engine/model/documentfragment~DocumentFragment|Iterable}\n * module:engine/model/node~NodeSet\n */\n\nexport type NodeSet = Item | string | NodeList | DocumentFragment | Iterable<Item | string | NodeList | DocumentFragment>;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/moveoperation\n */\n\nimport Operation from './operation';\nimport Position from '../position';\nimport Range from '../range';\nimport { _move } from './utils';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from '../document';\n\n// @if CK_DEBUG_ENGINE // const ModelRange = require( '../range' ).default;\n\n/**\n * Operation to move a range of {@link module:engine/model/item~Item model items}\n * to given {@link module:engine/model/position~Position target position}.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class MoveOperation extends Operation {\n\tpublic sourcePosition: Position;\n\tpublic howMany: number;\n\tpublic targetPosition: Position;\n\n\t/**\n\t * Creates a move operation.\n\t *\n\t * @param {module:engine/model/position~Position} sourcePosition\n\t * Position before the first {@link module:engine/model/item~Item model item} to move.\n\t * @param {Number} howMany Offset size of moved range. Moved range will start from `sourcePosition` and end at\n\t * `sourcePosition` with offset shifted by `howMany`.\n\t * @param {module:engine/model/position~Position} targetPosition Position at which moved nodes will be inserted.\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( sourcePosition: Position, howMany: number, targetPosition: Position, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Position before the first {@link module:engine/model/item~Item model item} to move.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/moveoperation~MoveOperation#sourcePosition\n\t\t */\n\t\tthis.sourcePosition = sourcePosition.clone();\n\t\t// `'toNext'` because `sourcePosition` is a bit like a start of the moved range.\n\t\tthis.sourcePosition.stickiness = 'toNext';\n\n\t\t/**\n\t\t * Offset size of moved range.\n\t\t *\n\t\t * @member {Number} module:engine/model/operation/moveoperation~MoveOperation#howMany\n\t\t */\n\t\tthis.howMany = howMany;\n\n\t\t/**\n\t\t * Position at which moved nodes will be inserted.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/moveoperation~MoveOperation#targetPosition\n\t\t */\n\t\tthis.targetPosition = targetPosition.clone();\n\t\tthis.targetPosition.stickiness = 'toNone';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'move' | 'remove' | 'reinsert' {\n\t\tif ( this.targetPosition.root.rootName == '$graveyard' ) {\n\t\t\treturn 'remove';\n\t\t} else if ( this.sourcePosition.root.rootName == '$graveyard' ) {\n\t\t\treturn 'reinsert';\n\t\t}\n\n\t\treturn 'move';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/moveoperation~MoveOperation} Clone of this operation.\n\t */\n\tpublic clone(): MoveOperation {\n\t\treturn new MoveOperation( this.sourcePosition, this.howMany, this.targetPosition, this.baseVersion );\n\t}\n\n\t/**\n\t * Returns the start position of the moved range after it got moved. This may be different than\n\t * {@link module:engine/model/operation/moveoperation~MoveOperation#targetPosition} in some cases, i.e. when a range is moved\n\t * inside the same parent but {@link module:engine/model/operation/moveoperation~MoveOperation#targetPosition targetPosition}\n\t * is after {@link module:engine/model/operation/moveoperation~MoveOperation#sourcePosition sourcePosition}.\n\t *\n\t *\t\t vv              vv\n\t *\t\tabcdefg ===> adefbcg\n\t *\t\t     ^          ^\n\t *\t\t     targetPos\tmovedRangeStart\n\t *\t\t     offset 6\toffset 4\n\t *\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic getMovedRangeStart(): Position {\n\t\treturn this.targetPosition._getTransformedByDeletion( this.sourcePosition, this.howMany )!;\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/moveoperation~MoveOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\tconst newTargetPosition = this.sourcePosition._getTransformedByInsertion( this.targetPosition, this.howMany );\n\n\t\treturn new MoveOperation( this.getMovedRangeStart(), this.howMany, newTargetPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst sourceElement = this.sourcePosition.parent;\n\t\tconst targetElement = this.targetPosition.parent;\n\t\tconst sourceOffset = this.sourcePosition.offset;\n\t\tconst targetOffset = this.targetPosition.offset;\n\n\t\t// Validate whether move operation has correct parameters.\n\t\t// Validation is pretty complex but move operation is one of the core ways to manipulate the document state.\n\t\t// We expect that many errors might be connected with one of scenarios described below.\n\t\tif ( sourceOffset + this.howMany > sourceElement.maxOffset ) {\n\t\t\t/**\n\t\t\t * The nodes which should be moved do not exist.\n\t\t\t *\n\t\t\t * @error move-operation-nodes-do-not-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'move-operation-nodes-do-not-exist', this\n\t\t\t);\n\t\t} else if ( sourceElement === targetElement && sourceOffset < targetOffset && targetOffset < sourceOffset + this.howMany ) {\n\t\t\t/**\n\t\t\t * Trying to move a range of nodes into the middle of that range.\n\t\t\t *\n\t\t\t * @error move-operation-range-into-itself\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'move-operation-range-into-itself', this\n\t\t\t);\n\t\t} else if ( this.sourcePosition.root == this.targetPosition.root ) {\n\t\t\tif ( compareArrays( this.sourcePosition.getParentPath(), this.targetPosition.getParentPath() ) == 'prefix' ) {\n\t\t\t\tconst i = this.sourcePosition.path.length - 1;\n\n\t\t\t\tif ( this.targetPosition.path[ i ] >= sourceOffset && this.targetPosition.path[ i ] < sourceOffset + this.howMany ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Trying to move a range of nodes into one of nodes from that range.\n\t\t\t\t\t *\n\t\t\t\t\t * @error move-operation-node-into-itself\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t\t'move-operation-node-into-itself', this\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t_move( Range._createFromPositionAndShift( this.sourcePosition, this.howMany ), this.targetPosition );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.sourcePosition = this.sourcePosition.toJSON();\n\t\tjson.targetPosition = this.targetPosition.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'MoveOperation';\n\t}\n\n\t/**\n\t * Creates `MoveOperation` object from deserilized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/moveoperation~MoveOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): MoveOperation {\n\t\tconst sourcePosition = Position.fromJSON( json.sourcePosition, document );\n\t\tconst targetPosition = Position.fromJSON( json.targetPosition, document );\n\n\t\treturn new this( sourcePosition, json.howMany, targetPosition, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \tconst range = ModelRange._createFromPositionAndShift( this.sourcePosition, this.howMany );\n\n\t// @if CK_DEBUG_ENGINE //\treturn `MoveOperation( ${ this.baseVersion } ): ${ range } -> ${ this.targetPosition }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/insertoperation\n */\n\nimport Operation from './operation';\nimport Position from '../position';\nimport NodeList from '../nodelist';\nimport MoveOperation from './moveoperation';\nimport { _insert, _normalizeNodes, type NodeSet } from './utils';\nimport Text from '../text';\nimport Element from '../element';\n\nimport type Document from '../document';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to insert one or more nodes at given position in the model.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class InsertOperation extends Operation {\n\tpublic position: Position;\n\tpublic nodes: NodeList;\n\tpublic shouldReceiveAttributes: boolean;\n\n\t/**\n\t * Creates an insert operation.\n\t *\n\t * @param {module:engine/model/position~Position} position Position of insertion.\n\t * @param {module:engine/model/node~NodeSet} nodes The list of nodes to be inserted.\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( position: Position, nodes: NodeSet, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Position of insertion.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/insertoperation~InsertOperation#position\n\t\t */\n\t\tthis.position = position.clone();\n\t\tthis.position.stickiness = 'toNone';\n\n\t\t/**\n\t\t * List of nodes to insert.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/nodelist~NodeList} module:engine/model/operation/insertoperation~InsertOperation#nodeList\n\t\t */\n\t\tthis.nodes = new NodeList( _normalizeNodes( nodes ) );\n\n\t\t/**\n\t\t * Flag deciding how the operation should be transformed. If set to `true`, nodes might get additional attributes\n\t\t * during operational transformation. This happens when the operation insertion position is inside of a range\n\t\t * where attributes have changed.\n\t\t *\n\t\t * @member {Boolean} module:engine/model/operation/insertoperation~InsertOperation#shouldReceiveAttributes\n\t\t */\n\t\tthis.shouldReceiveAttributes = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'insert' {\n\t\treturn 'insert';\n\t}\n\n\t/**\n\t * Total offset size of inserted nodes.\n\t *\n\t * @returns {Number}\n\t */\n\tpublic get howMany(): number {\n\t\treturn this.nodes.maxOffset;\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/insertoperation~InsertOperation} Clone of this operation.\n\t */\n\tpublic clone(): InsertOperation {\n\t\tconst nodes = new NodeList( [ ...this.nodes ].map( node => node._clone( true ) ) );\n\t\tconst insert = new InsertOperation( this.position, nodes, this.baseVersion );\n\n\t\tinsert.shouldReceiveAttributes = this.shouldReceiveAttributes;\n\n\t\treturn insert;\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/moveoperation~MoveOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\tconst graveyard = this.position.root.document!.graveyard;\n\t\tconst gyPosition = new Position( graveyard, [ 0 ] );\n\n\t\treturn new MoveOperation( this.position, this.nodes.maxOffset, gyPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst targetElement = this.position.parent;\n\n\t\tif ( !targetElement || targetElement.maxOffset < this.position.offset ) {\n\t\t\t/**\n\t\t\t * Insertion position is invalid.\n\t\t\t *\n\t\t\t * @error insert-operation-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'insert-operation-position-invalid',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t// What happens here is that we want original nodes be passed to writer because we want original nodes\n\t\t// to be inserted to the model. But in InsertOperation, we want to keep those nodes as they were added\n\t\t// to the operation, not modified. For example, text nodes can get merged or cropped while Elements can\n\t\t// get children. It is important that InsertOperation has the copy of original nodes in intact state.\n\t\tconst originalNodes = this.nodes;\n\t\tthis.nodes = new NodeList( [ ...originalNodes ].map( node => node._clone( true ) ) );\n\n\t\t_insert( this.position, originalNodes );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.position = this.position.toJSON();\n\t\tjson.nodes = this.nodes.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'InsertOperation';\n\t}\n\n\t/**\n\t * Creates `InsertOperation` object from deserilized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/insertoperation~InsertOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): InsertOperation {\n\t\tconst children = [];\n\n\t\tfor ( const child of json.nodes ) {\n\t\t\tif ( child.name ) {\n\t\t\t\t// If child has name property, it is an Element.\n\t\t\t\tchildren.push( Element.fromJSON( child ) );\n\t\t\t} else {\n\t\t\t\t// Otherwise, it is a Text node.\n\t\t\t\tchildren.push( Text.fromJSON( child ) );\n\t\t\t}\n\t\t}\n\n\t\tconst insert = new InsertOperation( Position.fromJSON( json.position, document ), children, json.baseVersion );\n\t\tinsert.shouldReceiveAttributes = json.shouldReceiveAttributes;\n\n\t\treturn insert;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \tconst nodeString = this.nodes.length > 1 ? `[ ${ this.nodes.length } ]` : this.nodes.getNode( 0 );\n\n\t// @if CK_DEBUG_ENGINE //\treturn `InsertOperation( ${ this.baseVersion } ): ${ nodeString } -> ${ this.position }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/markeroperation\n */\n\nimport Operation from './operation';\nimport Range from '../range';\n\nimport type Document from '../document';\nimport type MarkerCollection from '../markercollection';\n\n/**\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class MarkerOperation extends Operation {\n\tpublic name: string;\n\tpublic oldRange: Range | null;\n\tpublic newRange: Range | null;\n\tpublic affectsData: boolean;\n\n\tprivate readonly _markers: MarkerCollection;\n\n\t/**\n\t * @param {String} name Marker name.\n\t * @param {module:engine/model/range~Range|null} oldRange Marker range before the change.\n\t * @param {module:engine/model/range~Range|null} newRange Marker range after the change.\n\t * @param {module:engine/model/markercollection~MarkerCollection} markers Marker collection on which change should be executed.\n\t * @param {Boolean} affectsData Specifies whether the marker operation affects the data produced by the data pipeline\n\t * (is persisted in the editor's data).\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\tname: string,\n\t\toldRange: Range | null,\n\t\tnewRange: Range | null,\n\t\tmarkers: MarkerCollection,\n\t\taffectsData: boolean,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Marker name.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.name = name;\n\n\t\t/**\n\t\t * Marker range before the change.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/range~Range|null}\n\t\t */\n\t\tthis.oldRange = oldRange ? oldRange.clone() : null;\n\n\t\t/**\n\t\t * Marker range after the change.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/range~Range}\n\t\t */\n\t\tthis.newRange = newRange ? newRange.clone() : null;\n\n\t\t/**\n\t\t * Specifies whether the marker operation affects the data produced by the data pipeline\n\t\t * (is persisted in the editor's data).\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis.affectsData = affectsData;\n\n\t\t/**\n\t\t * Marker collection on which change should be executed.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/markercollection~MarkerCollection}\n\t\t */\n\t\tthis._markers = markers;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'marker' {\n\t\treturn 'marker';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/markeroperation~MarkerOperation} Clone of this operation.\n\t */\n\tpublic clone(): MarkerOperation {\n\t\treturn new MarkerOperation( this.name, this.oldRange, this.newRange, this._markers, this.affectsData, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/markeroperation~MarkerOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new MarkerOperation( this.name, this.newRange, this.oldRange, this._markers, this.affectsData, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tif ( this.newRange ) {\n\t\t\tthis._markers._set( this.name, this.newRange, true, this.affectsData );\n\t\t} else {\n\t\t\tthis._markers._remove( this.name );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tif ( this.oldRange ) {\n\t\t\tjson.oldRange = this.oldRange.toJSON();\n\t\t}\n\n\t\tif ( this.newRange ) {\n\t\t\tjson.newRange = this.newRange.toJSON();\n\t\t}\n\n\t\tdelete json._markers;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'MarkerOperation';\n\t}\n\n\t/**\n\t * Creates `MarkerOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/markeroperation~MarkerOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): MarkerOperation {\n\t\treturn new MarkerOperation(\n\t\t\tjson.name,\n\t\t\tjson.oldRange ? Range.fromJSON( json.oldRange, document ) : null,\n\t\t\tjson.newRange ? Range.fromJSON( json.newRange, document ) : null,\n\t\t\tdocument.model.markers,\n\t\t\tjson.affectsData,\n\t\t\tjson.baseVersion\n\t\t);\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `MarkerOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`\"${ this.name }\": ${ this.oldRange } -> ${ this.newRange }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","import baseIsEqual from './_baseIsEqual.js';\n\n/**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\nfunction isEqual(value, other) {\n  return baseIsEqual(value, other);\n}\n\nexport default isEqual;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/attributeoperation\n */\n\nimport Operation from './operation';\nimport { _setAttribute } from './utils';\nimport Range from '../range';\n\nimport type Document from '../document';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\nimport { isEqual } from 'lodash-es';\n\n/**\n * Operation to change nodes' attribute.\n *\n * Using this class you can add, remove or change value of the attribute.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class AttributeOperation extends Operation {\n\tpublic range: Range;\n\tpublic key: string;\n\tpublic oldValue: unknown;\n\tpublic newValue: unknown;\n\n\t/**\n\t * Creates an operation that changes, removes or adds attributes.\n\t *\n\t * If only `newValue` is set, attribute will be added on a node. Note that all nodes in operation's range must not\n\t * have an attribute with the same key as the added attribute.\n\t *\n\t * If only `oldValue` is set, then attribute with given key will be removed. Note that all nodes in operation's range\n\t * must have an attribute with that key added.\n\t *\n\t * If both `newValue` and `oldValue` are set, then the operation will change the attribute value. Note that all nodes in\n\t * operation's ranges must already have an attribute with given key and `oldValue` as value\n\t *\n\t * @param {module:engine/model/range~Range} range Range on which the operation should be applied. Must be a flat range.\n\t * @param {String} key Key of an attribute to change or remove.\n\t * @param {*} oldValue Old value of the attribute with given key or `null`, if attribute was not set before.\n\t * @param {*} newValue New value of the attribute with given key or `null`, if operation should remove attribute.\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( range: Range, key: string, oldValue: unknown, newValue: unknown, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Range on which operation should be applied.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/range~Range}\n\t\t */\n\t\tthis.range = range.clone();\n\n\t\t/**\n\t\t * Key of an attribute to change or remove.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.key = key;\n\n\t\t/**\n\t\t * Old value of the attribute with given key or `null`, if attribute was not set before.\n\t\t *\n\t\t * @readonly\n\t\t * @member {*}\n\t\t */\n\t\tthis.oldValue = oldValue === undefined ? null : oldValue;\n\n\t\t/**\n\t\t * New value of the attribute with given key or `null`, if operation should remove attribute.\n\t\t *\n\t\t * @readonly\n\t\t * @member {*}\n\t\t */\n\t\tthis.newValue = newValue === undefined ? null : newValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'addAttribute' | 'removeAttribute' | 'changeAttribute' {\n\t\tif ( this.oldValue === null ) {\n\t\t\treturn 'addAttribute';\n\t\t} else if ( this.newValue === null ) {\n\t\t\treturn 'removeAttribute';\n\t\t} else {\n\t\t\treturn 'changeAttribute';\n\t\t}\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/attributeoperation~AttributeOperation} Clone of this operation.\n\t */\n\tpublic clone(): AttributeOperation {\n\t\treturn new AttributeOperation( this.range, this.key, this.oldValue, this.newValue, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/attributeoperation~AttributeOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new AttributeOperation( this.range, this.key, this.newValue, this.oldValue, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.range = this.range.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tif ( !this.range.isFlat ) {\n\t\t\t/**\n\t\t\t * The range to change is not flat.\n\t\t\t *\n\t\t\t * @error attribute-operation-range-not-flat\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'attribute-operation-range-not-flat', this );\n\t\t}\n\n\t\tfor ( const item of this.range.getItems( { shallow: true } ) ) {\n\t\t\tif ( this.oldValue !== null && !isEqual( item.getAttribute( this.key ), this.oldValue ) ) {\n\t\t\t\t/**\n\t\t\t\t * Changed node has different attribute value than operation's old attribute value.\n\t\t\t\t *\n\t\t\t\t * @error attribute-operation-wrong-old-value\n\t\t\t\t * @param {module:engine/model/item~Item} item\n\t\t\t\t * @param {String} key\n\t\t\t\t * @param {*} value\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'attribute-operation-wrong-old-value',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ item, key: this.key, value: this.oldValue }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tif ( this.oldValue === null && this.newValue !== null && item.hasAttribute( this.key ) ) {\n\t\t\t\t/**\n\t\t\t\t * The attribute with given key already exists for the given node.\n\t\t\t\t *\n\t\t\t\t * @error attribute-operation-attribute-exists\n\t\t\t\t * @param {module:engine/model/node~Node} node\n\t\t\t\t * @param {String} key\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'attribute-operation-attribute-exists',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ node: item, key: this.key }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t// If value to set is same as old value, don't do anything.\n\t\tif ( !isEqual( this.oldValue, this.newValue ) ) {\n\t\t\t// Execution.\n\t\t\t_setAttribute( this.range, this.key, this.newValue );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'AttributeOperation';\n\t}\n\n\t/**\n\t * Creates `AttributeOperation` object from deserilized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/attributeoperation~AttributeOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): AttributeOperation {\n\t\treturn new AttributeOperation( Range.fromJSON( json.range, document ), json.key, json.oldValue, json.newValue, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `AttributeOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`\"${ this.key }\": ${ JSON.stringify( this.oldValue ) }` +\n\t// @if CK_DEBUG_ENGINE //\t\t` -> ${ JSON.stringify( this.newValue ) }, ${ this.range }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/nooperation\n */\n\nimport Operation from './operation';\n\n/**\n * Operation which is doing nothing (\"empty operation\", \"do-nothing operation\", \"noop\"). This is an operation,\n * which when executed does not change the tree model. It still has some parameters defined for transformation purposes.\n *\n * In most cases this operation is a result of transforming operations. When transformation returns\n * {@link module:engine/model/operation/nooperation~NoOperation} it means that changes done by the transformed operation\n * have already been applied.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class NoOperation extends Operation {\n\tpublic get type(): 'noop' {\n\t\treturn 'noop';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/nooperation~NoOperation} Clone of this operation.\n\t */\n\tpublic clone(): NoOperation {\n\t\treturn new NoOperation( this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/nooperation~NoOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new NoOperation( this.baseVersion! + 1 );\n\t}\n\n\t/** @internal */\n\tpublic _execute(): void {\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'NoOperation';\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `NoOperation( ${ this.baseVersion } )`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/renameoperation\n */\n\nimport Operation from './operation';\nimport Element from '../element';\nimport Position from '../position';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from '../document';\n\n/**\n * Operation to change element's name.\n *\n * Using this class you can change element's name.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class RenameOperation extends Operation {\n\tpublic position: Position;\n\tpublic oldName: string;\n\tpublic newName: string;\n\n\t/**\n\t * Creates an operation that changes element's name.\n\t *\n\t * @param {module:engine/model/position~Position} position Position before an element to change.\n\t * @param {String} oldName Current name of the element.\n\t * @param {String} newName New name for the element.\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( position: Position, oldName: string, newName: string, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Position before an element to change.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/renameoperation~RenameOperation#position\n\t\t */\n\t\tthis.position = position;\n\t\t// This position sticks to the next node because it is a position before the node that we want to change.\n\t\tthis.position.stickiness = 'toNext';\n\n\t\t/**\n\t\t * Current name of the element.\n\t\t *\n\t\t * @member {String} module:engine/model/operation/renameoperation~RenameOperation#oldName\n\t\t */\n\t\tthis.oldName = oldName;\n\n\t\t/**\n\t\t * New name for the element.\n\t\t *\n\t\t * @member {String} module:engine/model/operation/renameoperation~RenameOperation#newName\n\t\t */\n\t\tthis.newName = newName;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'rename' {\n\t\treturn 'rename';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/renameoperation~RenameOperation} Clone of this operation.\n\t */\n\tpublic clone(): RenameOperation {\n\t\treturn new RenameOperation( this.position.clone(), this.oldName, this.newName, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/renameoperation~RenameOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new RenameOperation( this.position.clone(), this.newName, this.oldName, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst element = this.position.nodeAfter;\n\n\t\tif ( !( element instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Given position is invalid or node after it is not instance of Element.\n\t\t\t *\n\t\t\t * @error rename-operation-wrong-position\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rename-operation-wrong-position',\n\t\t\t\tthis\n\t\t\t);\n\t\t} else if ( element.name !== this.oldName ) {\n\t\t\t/**\n\t\t\t * Element to change has different name than operation's old name.\n\t\t\t *\n\t\t\t * @error rename-operation-wrong-name\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rename-operation-wrong-name',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tconst element = this.position.nodeAfter;\n\n\t\t( element as any ).name = this.newName;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.position = this.position.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'RenameOperation';\n\t}\n\n\t/**\n\t * Creates `RenameOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/attributeoperation~AttributeOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): RenameOperation {\n\t\treturn new RenameOperation( Position.fromJSON( json.position, document ), json.oldName, json.newName, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `RenameOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`${ this.position }: \"${ this.oldName }\" -> \"${ this.newName }\"`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/rootattributeoperation\n */\n\nimport Operation from './operation';\n\nimport type Document from '../document';\nimport type RootElement from '../rootelement';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to change root element's attribute. Using this class you can add, remove or change value of the attribute.\n *\n * This operation is needed, because root elements can't be changed through\n * @link module:engine/model/operation/attributeoperation~AttributeOperation}.\n * It is because {@link module:engine/model/operation/attributeoperation~AttributeOperation}\n * requires a range to change and root element can't\n * be a part of range because every {@link module:engine/model/position~Position} has to be inside a root.\n * {@link module:engine/model/position~Position} can't be created before a root element.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class RootAttributeOperation extends Operation {\n\tpublic root: RootElement;\n\tpublic key: string;\n\tpublic oldValue: unknown;\n\tpublic newValue: unknown;\n\n\t/**\n\t * Creates an operation that changes, removes or adds attributes on root element.\n\t *\n\t * @see module:engine/model/operation/attributeoperation~AttributeOperation\n\t * @param {module:engine/model/rootelement~RootElement} root Root element to change.\n\t * @param {String} key Key of an attribute to change or remove.\n\t * @param {*} oldValue Old value of the attribute with given key or `null` if adding a new attribute.\n\t * @param {*} newValue New value to set for the attribute. If `null`, then the operation just removes the attribute.\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\troot: RootElement,\n\t\tkey: string,\n\t\toldValue: unknown,\n\t\tnewValue: unknown,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Root element to change.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/rootelement~RootElement}\n\t\t */\n\t\tthis.root = root;\n\n\t\t/**\n\t\t * Key of an attribute to change or remove.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.key = key;\n\n\t\t/**\n\t\t * Old value of the attribute with given key or `null` if adding a new attribute.\n\t\t *\n\t\t * @readonly\n\t\t * @member {*}\n\t\t */\n\t\tthis.oldValue = oldValue;\n\n\t\t/**\n\t\t * New value to set for the attribute. If `null`, then the operation just removes the attribute.\n\t\t *\n\t\t * @readonly\n\t\t * @member {*}\n\t\t */\n\t\tthis.newValue = newValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'addRootAttribute' | 'removeRootAttribute' | 'changeRootAttribute' {\n\t\tif ( this.oldValue === null ) {\n\t\t\treturn 'addRootAttribute';\n\t\t} else if ( this.newValue === null ) {\n\t\t\treturn 'removeRootAttribute';\n\t\t} else {\n\t\t\treturn 'changeRootAttribute';\n\t\t}\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/rootattributeoperation~RootAttributeOperation} Clone of this operation.\n\t */\n\tpublic clone(): RootAttributeOperation {\n\t\treturn new RootAttributeOperation( this.root, this.key, this.oldValue, this.newValue, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/rootattributeoperation~RootAttributeOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new RootAttributeOperation( this.root, this.key, this.newValue, this.oldValue, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tif ( this.root != this.root.root || this.root.is( 'documentFragment' ) ) {\n\t\t\t/**\n\t\t\t * The element to change is not a root element.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-not-a-root\n\t\t\t * @param {module:engine/model/rootelement~RootElement} root\n\t\t\t * @param {String} key\n\t\t\t * @param {*} value\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rootattribute-operation-not-a-root',\n\t\t\t\tthis,\n\t\t\t\t{ root: this.root, key: this.key }\n\t\t\t);\n\t\t}\n\n\t\tif ( this.oldValue !== null && this.root.getAttribute( this.key ) !== this.oldValue ) {\n\t\t\t/**\n\t\t\t * The attribute which should be removed does not exists for the given node.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-wrong-old-value\n\t\t\t * @param {module:engine/model/rootelement~RootElement} root\n\t\t\t * @param {String} key\n\t\t\t * @param {*} value\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rootattribute-operation-wrong-old-value',\n\t\t\t\tthis,\n\t\t\t\t{ root: this.root, key: this.key }\n\t\t\t);\n\t\t}\n\n\t\tif ( this.oldValue === null && this.newValue !== null && this.root.hasAttribute( this.key ) ) {\n\t\t\t/**\n\t\t\t * The attribute with given key already exists for the given node.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-attribute-exists\n\t\t\t * @param {module:engine/model/rootelement~RootElement} root\n\t\t\t * @param {String} key\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rootattribute-operation-attribute-exists',\n\t\t\t\tthis,\n\t\t\t\t{ root: this.root, key: this.key }\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _execute(): void {\n\t\tif ( this.newValue !== null ) {\n\t\t\tthis.root._setAttribute( this.key, this.newValue );\n\t\t} else {\n\t\t\tthis.root._removeAttribute( this.key );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.root = this.root.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'RootAttributeOperation';\n\t}\n\n\t/**\n\t * Creates RootAttributeOperation object from deserilized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/rootattributeoperation~RootAttributeOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): RootAttributeOperation {\n\t\tif ( !document.getRoot( json.root ) ) {\n\t\t\t/**\n\t\t\t * Cannot create RootAttributeOperation for document. Root with specified name does not exist.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-fromjson-no-root\n\t\t\t * @param {String} rootName\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'rootattribute-operation-fromjson-no-root', this, { rootName: json.root } );\n\t\t}\n\n\t\treturn new RootAttributeOperation( document.getRoot( json.root )!, json.key, json.oldValue, json.newValue, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `RootAttributeOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`\"${ this.key }\": ${ JSON.stringify( this.oldValue ) }` +\n\t// @if CK_DEBUG_ENGINE //\t\t` -> ${ JSON.stringify( this.newValue ) }, ${ this.root.rootName }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/mergeoperation\n */\n\nimport Operation from './operation';\nimport SplitOperation from './splitoperation';\nimport Position from '../position';\nimport Range from '../range';\nimport { _move } from './utils';\n\nimport type Document from '../document';\nimport type Element from '../element';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to merge two {@link module:engine/model/element~Element elements}.\n *\n * The merged element is the parent of {@link ~MergeOperation#sourcePosition} and it is merged into the parent of\n * {@link ~MergeOperation#targetPosition}. All nodes from the merged element are moved to {@link ~MergeOperation#targetPosition}.\n *\n * The merged element is moved to the graveyard at {@link ~MergeOperation#graveyardPosition}.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class MergeOperation extends Operation {\n\tpublic sourcePosition: Position;\n\tpublic howMany: number;\n\tpublic targetPosition: Position;\n\tpublic graveyardPosition: Position;\n\n\t/**\n\t * Creates a merge operation.\n\t *\n\t * @param {module:engine/model/position~Position} sourcePosition Position inside the merged element. All nodes from that\n\t * element after that position will be moved to {@link ~#targetPosition}.\n\t * @param {Number} howMany Summary offset size of nodes which will be moved from the merged element to the new parent.\n\t * @param {module:engine/model/position~Position} targetPosition Position which the nodes from the merged elements will be moved to.\n\t * @param {module:engine/model/position~Position} graveyardPosition Position in graveyard to which the merged element will be moved.\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\tsourcePosition: Position,\n\t\thowMany: number,\n\t\ttargetPosition: Position,\n\t\tgraveyardPosition: Position,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Position inside the merged element. All nodes from that element after that position will be moved to {@link ~#targetPosition}.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/mergeoperation~MergeOperation#sourcePosition\n\t\t */\n\t\tthis.sourcePosition = sourcePosition.clone();\n\t\t// This is, and should always remain, the first position in its parent.\n\t\tthis.sourcePosition.stickiness = 'toPrevious';\n\n\t\t/**\n\t\t * Summary offset size of nodes which will be moved from the merged element to the new parent.\n\t\t *\n\t\t * @member {Number} module:engine/model/operation/mergeoperation~MergeOperation#howMany\n\t\t */\n\t\tthis.howMany = howMany;\n\n\t\t/**\n\t\t * Position which the nodes from the merged elements will be moved to.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/mergeoperation~MergeOperation#targetPosition\n\t\t */\n\t\tthis.targetPosition = targetPosition.clone();\n\t\t// Except of a rare scenario in `MergeOperation` x `MergeOperation` transformation,\n\t\t// this is, and should always remain, the last position in its parent.\n\t\tthis.targetPosition.stickiness = 'toNext';\n\n\t\t/**\n\t\t * Position in graveyard to which the merged element will be moved.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/mergeoperation~MergeOperation#graveyardPosition\n\t\t */\n\t\tthis.graveyardPosition = graveyardPosition.clone();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'merge' {\n\t\treturn 'merge';\n\t}\n\n\t/**\n\t * Position before the merged element (which will be deleted).\n\t *\n\t * @readonly\n\t * @type {module:engine/model/position~Position}\n\t */\n\tpublic get deletionPosition(): Position {\n\t\treturn new Position( this.sourcePosition.root, this.sourcePosition.path.slice( 0, -1 ) );\n\t}\n\n\t/**\n\t * Artificial range that contains all the nodes from the merged element that will be moved to {@link ~MergeOperation#sourcePosition}.\n\t * The range starts at {@link ~MergeOperation#sourcePosition} and ends in the same parent, at `POSITIVE_INFINITY` offset.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/range~Range}\n\t */\n\tpublic get movedRange(): Range {\n\t\tconst end = this.sourcePosition.getShiftedBy( Number.POSITIVE_INFINITY );\n\n\t\treturn new Range( this.sourcePosition, end );\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/mergeoperation~MergeOperation} Clone of this operation.\n\t */\n\tpublic clone(): MergeOperation {\n\t\treturn new MergeOperation( this.sourcePosition, this.howMany, this.targetPosition, this.graveyardPosition, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/splitoperation~SplitOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\t// Positions in this method are transformed by this merge operation because the split operation bases on\n\t\t// the context after this merge operation happened (because split operation reverses it).\n\t\t// So we need to acknowledge that the merge operation happened and those positions changed a little.\n\t\tconst targetPosition = this.targetPosition._getTransformedByMergeOperation( this );\n\n\t\tconst path = this.sourcePosition.path.slice( 0, -1 );\n\t\tconst insertionPosition = new Position( this.sourcePosition.root, path )._getTransformedByMergeOperation( this );\n\n\t\treturn new SplitOperation( targetPosition, this.howMany, insertionPosition, this.graveyardPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst sourceElement = this.sourcePosition.parent;\n\t\tconst targetElement = this.targetPosition.parent;\n\n\t\t// Validate whether merge operation has correct parameters.\n\t\tif ( !sourceElement.parent ) {\n\t\t\t/**\n\t\t\t * Merge source position is invalid. The element to be merged must have a parent node.\n\t\t\t *\n\t\t\t * @error merge-operation-source-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'merge-operation-source-position-invalid', this );\n\t\t} else if ( !targetElement.parent ) {\n\t\t\t/**\n\t\t\t * Merge target position is invalid. The element to be merged must have a parent node.\n\t\t\t *\n\t\t\t * @error merge-operation-target-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'merge-operation-target-position-invalid', this );\n\t\t} else if ( this.howMany != sourceElement.maxOffset ) {\n\t\t\t/**\n\t\t\t * Merge operation specifies wrong number of nodes to move.\n\t\t\t *\n\t\t\t * @error merge-operation-how-many-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'merge-operation-how-many-invalid', this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tconst mergedElement = this.sourcePosition.parent as Element;\n\t\tconst sourceRange = Range._createIn( mergedElement );\n\n\t\t_move( sourceRange, this.targetPosition );\n\t\t_move( Range._createOn( mergedElement ), this.graveyardPosition );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.sourcePosition = json.sourcePosition.toJSON();\n\t\tjson.targetPosition = json.targetPosition.toJSON();\n\t\tjson.graveyardPosition = json.graveyardPosition.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'MergeOperation';\n\t}\n\n\t/**\n\t * Creates `MergeOperation` object from deserilized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/mergeoperation~MergeOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): MergeOperation {\n\t\tconst sourcePosition = Position.fromJSON( json.sourcePosition, document );\n\t\tconst targetPosition = Position.fromJSON( json.targetPosition, document );\n\t\tconst graveyardPosition = Position.fromJSON( json.graveyardPosition, document );\n\n\t\treturn new this( sourcePosition, json.howMany, targetPosition, graveyardPosition, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `MergeOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`${ this.sourcePosition } -> ${ this.targetPosition }` +\n\t// @if CK_DEBUG_ENGINE //\t\t` ( ${ this.howMany } ), ${ this.graveyardPosition }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/splitoperation\n */\n\nimport Operation from './operation';\nimport MergeOperation from './mergeoperation';\nimport Position from '../position';\nimport Range from '../range';\nimport { _insert, _move } from './utils';\n\nimport type Document from '../document';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to split {@link module:engine/model/element~Element an element} at given\n * {@link module:engine/model/operation/splitoperation~SplitOperation#splitPosition split position} into two elements,\n * both containing a part of the element's original content.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class SplitOperation extends Operation {\n\tpublic splitPosition: Position;\n\tpublic howMany: number;\n\tpublic insertionPosition: Position;\n\tpublic graveyardPosition: Position | null;\n\n\t/**\n\t * Creates a split operation.\n\t *\n\t * @param {module:engine/model/position~Position} splitPosition Position at which an element should be split.\n\t * @param {Number} howMany Total offset size of elements that are in the split element after `position`.\n\t * @param {module:engine/model/position~Position} insertionPosition Position at which the clone of split element\n\t * (or element from graveyard) will be inserted.\n\t * @param {module:engine/model/position~Position|null} graveyardPosition Position in the graveyard root before the element which\n\t * should be used as a parent of the nodes after `position`. If it is not set, a copy of the the `position` parent will be used.\n\t * @param {Number|null} baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\tsplitPosition: Position,\n\t\thowMany: number,\n\t\tinsertionPosition: Position,\n\t\tgraveyardPosition: Position | null,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\t/**\n\t\t * Position at which an element should be split.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/splitoperation~SplitOperation#splitPosition\n\t\t */\n\t\tthis.splitPosition = splitPosition.clone();\n\t\t// Keep position sticking to the next node. This way any new content added at the place where the element is split\n\t\t// will be left in the original element.\n\t\tthis.splitPosition.stickiness = 'toNext';\n\n\t\t/**\n\t\t * Total offset size of elements that are in the split element after `position`.\n\t\t *\n\t\t * @member {Number} module:engine/model/operation/splitoperation~SplitOperation#howMany\n\t\t */\n\t\tthis.howMany = howMany;\n\n\t\t/**\n\t\t * Position at which the clone of split element (or element from graveyard) will be inserted.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} module:engine/model/operation/splitoperation~SplitOperation#insertionPosition\n\t\t */\n\t\tthis.insertionPosition = insertionPosition;\n\n\t\t/**\n\t\t * Position in the graveyard root before the element which should be used as a parent of the nodes after `position`.\n\t\t * If it is not set, a copy of the the `position` parent will be used.\n\t\t *\n\t\t * The default behavior is to clone the split element. Element from graveyard is used during undo.\n\t\t *\n\t\t * @member {module:engine/model/position~Position|null} #graveyardPosition\n\t\t */\n\t\tthis.graveyardPosition = graveyardPosition ? graveyardPosition.clone() : null;\n\n\t\tif ( this.graveyardPosition ) {\n\t\t\tthis.graveyardPosition.stickiness = 'toNext';\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'split' {\n\t\treturn 'split';\n\t}\n\n\t/**\n\t * Position inside the new clone of a split element.\n\t *\n\t * This is a position where nodes that are after the split position will be moved to.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/position~Position}\n\t */\n\tpublic get moveTargetPosition(): Position {\n\t\tconst path = this.insertionPosition.path.slice();\n\t\tpath.push( 0 );\n\n\t\treturn new Position( this.insertionPosition.root, path );\n\t}\n\n\t/**\n\t * Artificial range that contains all the nodes from the split element that will be moved to the new element.\n\t * The range starts at {@link ~#splitPosition} and ends in the same parent, at `POSITIVE_INFINITY` offset.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/range~Range}\n\t */\n\tpublic get movedRange(): Range {\n\t\tconst end = this.splitPosition.getShiftedBy( Number.POSITIVE_INFINITY );\n\n\t\treturn new Range( this.splitPosition, end );\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns {module:engine/model/operation/splitoperation~SplitOperation} Clone of this operation.\n\t */\n\tpublic clone(): SplitOperation {\n\t\treturn new SplitOperation( this.splitPosition, this.howMany, this.insertionPosition, this.graveyardPosition, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t *\n\t * @returns {module:engine/model/operation/mergeoperation~MergeOperation}\n\t */\n\tpublic getReversed(): Operation {\n\t\tconst graveyard = this.splitPosition.root.document!.graveyard;\n\t\tconst graveyardPosition = new Position( graveyard, [ 0 ] );\n\n\t\treturn new MergeOperation( this.moveTargetPosition, this.howMany, this.splitPosition, graveyardPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst element = this.splitPosition.parent;\n\t\tconst offset = this.splitPosition.offset;\n\n\t\t// Validate whether split operation has correct parameters.\n\t\tif ( !element || element.maxOffset < offset ) {\n\t\t\t/**\n\t\t\t * Split position is invalid.\n\t\t\t *\n\t\t\t * @error split-operation-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-position-invalid', this );\n\t\t} else if ( !element.parent ) {\n\t\t\t/**\n\t\t\t * Cannot split root element.\n\t\t\t *\n\t\t\t * @error split-operation-split-in-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-split-in-root', this );\n\t\t} else if ( this.howMany != element.maxOffset - this.splitPosition.offset ) {\n\t\t\t/**\n\t\t\t * Split operation specifies wrong number of nodes to move.\n\t\t\t *\n\t\t\t * @error split-operation-how-many-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-how-many-invalid', this );\n\t\t} else if ( this.graveyardPosition && !this.graveyardPosition.nodeAfter ) {\n\t\t\t/**\n\t\t\t * Graveyard position invalid.\n\t\t\t *\n\t\t\t * @error split-operation-graveyard-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-graveyard-position-invalid', this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tconst splitElement = this.splitPosition.parent;\n\n\t\tif ( this.graveyardPosition ) {\n\t\t\t_move( Range._createFromPositionAndShift( this.graveyardPosition, 1 ), this.insertionPosition );\n\t\t} else {\n\t\t\tconst newElement = ( splitElement as any )._clone();\n\n\t\t\t_insert( this.insertionPosition, newElement );\n\t\t}\n\n\t\tconst sourceRange = new Range(\n\t\t\tPosition._createAt( splitElement, this.splitPosition.offset ),\n\t\t\tPosition._createAt( splitElement, splitElement.maxOffset )\n\t\t);\n\n\t\t_move( sourceRange, this.moveTargetPosition );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.splitPosition = this.splitPosition.toJSON();\n\t\tjson.insertionPosition = this.insertionPosition.toJSON();\n\n\t\tif ( this.graveyardPosition ) {\n\t\t\tjson.graveyardPosition = this.graveyardPosition.toJSON();\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'SplitOperation';\n\t}\n\n\t/**\n\t * Helper function that returns a default insertion position basing on given `splitPosition`. The default insertion\n\t * position is after the split element.\n\t *\n\t * @param {module:engine/model/position~Position} splitPosition\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic static getInsertionPosition( splitPosition: Position ): Position {\n\t\tconst path = splitPosition.path.slice( 0, -1 );\n\t\tpath[ path.length - 1 ]++;\n\n\t\treturn new Position( splitPosition.root, path, 'toPrevious' );\n\t}\n\n\t/**\n\t * Creates `SplitOperation` object from deserilized object, i.e. from parsed JSON string.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/splitoperation~SplitOperation}\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): SplitOperation {\n\t\tconst splitPosition = Position.fromJSON( json.splitPosition, document );\n\t\tconst insertionPosition = Position.fromJSON( json.insertionPosition, document );\n\t\tconst graveyardPosition = json.graveyardPosition ? Position.fromJSON( json.graveyardPosition, document ) : null;\n\n\t\treturn new this( splitPosition, json.howMany, insertionPosition, graveyardPosition, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn `SplitOperation( ${ this.baseVersion } ): ${ this.splitPosition } ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`( ${ this.howMany } ) -> ${ this.insertionPosition }` +\n\t// @if CK_DEBUG_ENGINE //\t\t`${ this.graveyardPosition ? ' with ' + this.graveyardPosition : '' }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/operationfactory\n */\n\nimport AttributeOperation from './attributeoperation';\nimport InsertOperation from './insertoperation';\nimport MarkerOperation from './markeroperation';\nimport MoveOperation from './moveoperation';\nimport NoOperation from './nooperation';\nimport Operation from './operation';\nimport RenameOperation from './renameoperation';\nimport RootAttributeOperation from './rootattributeoperation';\nimport SplitOperation from './splitoperation';\nimport MergeOperation from './mergeoperation';\n\nimport type Document from '../document';\n\nconst operations: {\n\t[ className: string ]: {\n\t\tfromJSON( json: any, document: Document ): Operation;\n\t};\n} = {};\noperations[ AttributeOperation.className ] = AttributeOperation;\noperations[ InsertOperation.className ] = InsertOperation;\noperations[ MarkerOperation.className ] = MarkerOperation;\noperations[ MoveOperation.className ] = MoveOperation;\noperations[ NoOperation.className ] = NoOperation;\noperations[ Operation.className ] = Operation;\noperations[ RenameOperation.className ] = RenameOperation;\noperations[ RootAttributeOperation.className ] = RootAttributeOperation;\noperations[ SplitOperation.className ] = SplitOperation;\noperations[ MergeOperation.className ] = MergeOperation;\n\n/**\n * A factory class for creating operations.\n *\n * @abstract\n */\nexport default abstract class OperationFactory {\n\t/**\n\t * Creates an operation instance from a JSON object (parsed JSON string).\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @param {module:engine/model/document~Document} document Document on which this operation will be applied.\n\t * @returns {module:engine/model/operation/operation~Operation}\n\t */\n\tpublic static fromJSON( json: any, document: Document ): Operation {\n\t\treturn operations[ json.__className ].fromJSON( json, document );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport InsertOperation from './insertoperation';\nimport AttributeOperation from './attributeoperation';\nimport RenameOperation from './renameoperation';\nimport MarkerOperation from './markeroperation';\nimport MoveOperation from './moveoperation';\nimport RootAttributeOperation from './rootattributeoperation';\nimport MergeOperation from './mergeoperation';\nimport SplitOperation from './splitoperation';\nimport NoOperation from './nooperation';\nimport Range from '../range';\nimport Position from '../position';\n\nimport type Operation from './operation';\nimport type Document from '../document';\nimport type History from '../history';\n\nimport { compareArrays } from '@ckeditor/ckeditor5-utils';\n\ntype TransformationFunction = ( a: Operation, b: Operation, context: TransformationContext ) => Array<Operation>;\n\nconst transformations = new Map<Function, Map<Function, TransformationFunction>>();\n\n/**\n * @module engine/model/operation/transform\n */\n\n/**\n * Sets a transformation function to be be used to transform instances of class `OperationA` by instances of class `OperationB`.\n *\n * The `transformationFunction` is passed three parameters:\n *\n * * `a` - operation to be transformed, an instance of `OperationA`,\n * * `b` - operation to be transformed by, an instance of `OperationB`,\n * * {@link module:engine/model/operation/transform~TransformationContext `context`} - object with additional information about\n * transformation context.\n *\n * The `transformationFunction` should return transformation result, which is an array with one or multiple\n * {@link module:engine/model/operation/operation~Operation operation} instances.\n *\n * @protected\n * @param {Function} OperationA\n * @param {Function} OperationB\n * @param {Function} transformationFunction Function to use for transforming.\n */\nfunction setTransformation<\n\tClassA extends new ( ...args: Array<any> ) => Operation,\n\tClassB extends new ( ...args: Array<any> ) => Operation\n>(\n\tOperationA: ClassA,\n\tOperationB: ClassB,\n\ttransformationFunction: ( a: InstanceType<ClassA>, b: InstanceType<ClassB>, context: TransformationContext ) => Array<Operation>\n) {\n\tlet aGroup = transformations.get( OperationA );\n\n\tif ( !aGroup ) {\n\t\taGroup = new Map();\n\t\ttransformations.set( OperationA, aGroup );\n\t}\n\n\taGroup.set( OperationB, transformationFunction as TransformationFunction );\n}\n\n/**\n * Returns a previously set transformation function for transforming an instance of `OperationA` by an instance of `OperationB`.\n *\n * If no transformation was set for given pair of operations, {@link module:engine/model/operation/transform~noUpdateTransformation}\n * is returned. This means that if no transformation was set, the `OperationA` instance will not change when transformed\n * by the `OperationB` instance.\n *\n * @private\n * @param {Function} OperationA\n * @param {Function} OperationB\n * @returns {Function} Function set to transform an instance of `OperationA` by an instance of `OperationB`.\n */\nfunction getTransformation( OperationA: Function, OperationB: Function ): TransformationFunction {\n\tconst aGroup = transformations.get( OperationA );\n\n\tif ( aGroup && aGroup.has( OperationB ) ) {\n\t\treturn aGroup.get( OperationB )!;\n\t}\n\n\treturn noUpdateTransformation;\n}\n\n/**\n * A transformation function that only clones operation to transform, without changing it.\n *\n * @private\n * @param {module:engine/model/operation/operation~Operation} a Operation to transform.\n * @returns {Array.<module:engine/model/operation/operation~Operation>}\n */\nfunction noUpdateTransformation( a: Operation ): Array<Operation> {\n\treturn [ a ];\n}\n\n/**\n * Transforms operation `a` by operation `b`.\n *\n * @param {module:engine/model/operation/operation~Operation} a Operation to be transformed.\n * @param {module:engine/model/operation/operation~Operation} b Operation to transform by.\n * @param {module:engine/model/operation/transform~TransformationContext} [context] Transformation context for this transformation.\n * @returns {Array.<module:engine/model/operation/operation~Operation>} Transformation result.\n */\nexport function transform( a: Operation, b: Operation, context: TransformationContext = {} ): Array<Operation> {\n\tconst transformationFunction = getTransformation( a.constructor, b.constructor );\n\n\t/* eslint-disable no-useless-catch */\n\ttry {\n\t\ta = a.clone();\n\n\t\treturn transformationFunction( a, b, context );\n\t} catch ( e ) {\n\t\t// @if CK_DEBUG // console.warn( 'Error during operation transformation!', e.message );\n\t\t// @if CK_DEBUG // console.warn( 'Transformed operation', a );\n\t\t// @if CK_DEBUG // console.warn( 'Operation transformed by', b );\n\t\t// @if CK_DEBUG // console.warn( 'context.aIsStrong', context.aIsStrong );\n\t\t// @if CK_DEBUG // console.warn( 'context.aWasUndone', context.aWasUndone );\n\t\t// @if CK_DEBUG // console.warn( 'context.bWasUndone', context.bWasUndone );\n\t\t// @if CK_DEBUG // console.warn( 'context.abRelation', context.abRelation );\n\t\t// @if CK_DEBUG // console.warn( 'context.baRelation', context.baRelation );\n\n\t\tthrow e;\n\t}\n\t/* eslint-enable no-useless-catch */\n}\n\n/**\n * Performs a transformation of two sets of operations - `operationsA` and `operationsB`. The transformation is two-way -\n * both transformed `operationsA` and transformed `operationsB` are returned.\n *\n * Note, that the first operation in each set should base on the same document state (\n * {@link module:engine/model/document~Document#version document version}).\n *\n * It is assumed that `operationsA` are \"more important\" during conflict resolution between two operations.\n *\n * New copies of both passed arrays and operations inside them are returned. Passed arguments are not altered.\n *\n * Base versions of the transformed operations sets are updated accordingly. For example, assume that base versions are `4`\n * and there are `3` operations in `operationsA` and `5` operations in `operationsB`. Then:\n *\n * * transformed `operationsA` will start from base version `9` (`4` base version + `5` operations B),\n * * transformed `operationsB` will start from base version `7` (`4` base version + `3` operations A).\n *\n * If no operation was broken into two during transformation, then both sets will end up with an operation that bases on version `11`:\n *\n * * transformed `operationsA` start from `9` and there are `3` of them, so the last will have `baseVersion` equal to `11`,\n * * transformed `operationsB` start from `7` and there are `5` of them, so the last will have `baseVersion` equal to `11`.\n *\n * @param {Array.<module:engine/model/operation/operation~Operation>} operationsA\n * @param {Array.<module:engine/model/operation/operation~Operation>} operationsB\n * @param {Object} options Additional transformation options.\n * @param {module:engine/model/document~Document} options.document Document which the operations change.\n * @param {Boolean} [options.useRelations=false] Whether during transformation relations should be used (used during undo for\n * better conflict resolution).\n * @param {Boolean} [options.padWithNoOps=false] Whether additional {@link module:engine/model/operation/nooperation~NoOperation}s\n * should be added to the transformation results to force the same last base version for both transformed sets (in case\n * if some operations got broken into multiple operations during transformation).\n * @param {Boolean} [options.forceWeakRemove] If set to `false`, remove operation will be always stronger than move operation,\n * so the removed nodes won't end up back in the document root. When set to `true`, context data will be used.\n * @returns {Object} Transformation result.\n * @returns {Array.<module:engine/model/operation/operation~Operation>} return.operationsA Transformed `operationsA`.\n * @returns {Array.<module:engine/model/operation/operation~Operation>} return.operationsB Transformed `operationsB`.\n * @returns {Map} return.originalOperations A map that links transformed operations to original operations. The keys are the transformed\n * operations and the values are the original operations from the input (`operationsA` and `operationsB`).\n */\nexport function transformSets(\n\toperationsA: Array<Operation>,\n\toperationsB: Array<Operation>,\n\toptions: {\n\t\tdocument: Document;\n\t\tuseRelations?: boolean;\n\t\tpadWithNoOps?: boolean;\n\t\tforceWeakRemove?: boolean;\n\t}\n): { operationsA: Array<Operation>; operationsB: Array<Operation>; originalOperations: Map<Operation, Operation> } {\n\t// Create new arrays so the originally passed arguments are not changed.\n\t// No need to clone operations, they are cloned as they are transformed.\n\toperationsA = operationsA.slice();\n\toperationsB = operationsB.slice();\n\n\tconst contextFactory = new ContextFactory( options.document, options.useRelations, options.forceWeakRemove );\n\tcontextFactory.setOriginalOperations( operationsA );\n\tcontextFactory.setOriginalOperations( operationsB );\n\n\tconst originalOperations = contextFactory.originalOperations;\n\n\t// If one of sets is empty there is simply nothing to transform, so return sets as they are.\n\tif ( operationsA.length == 0 || operationsB.length == 0 ) {\n\t\treturn { operationsA, operationsB, originalOperations };\n\t}\n\t//\n\t// Following is a description of transformation process:\n\t//\n\t// There are `operationsA` and `operationsB` to be transformed, both by both.\n\t//\n\t// So, suppose we have sets of two operations each: `operationsA` = `[ a1, a2 ]`, `operationsB` = `[ b1, b2 ]`.\n\t//\n\t// Remember, that we can only transform operations that base on the same context. We assert that `a1` and `b1` base on\n\t// the same context and we transform them. Then, we get `a1'` and `b1'`. `a2` bases on a context with `a1` -- `a2`\n\t// is an operation that followed `a1`. Similarly, `b2` bases on a context with `b1`.\n\t//\n\t// However, since `a1'` is a result of transformation by `b1`, `a1'` now also has a context with `b1`. This means that\n\t// we can safely transform `a1'` by `b2`. As we finish transforming `a1`, we also transformed all `operationsB`.\n\t// All `operationsB` also have context including `a1`. Now, we can properly transform `a2` by those operations.\n\t//\n\t// The transformation process can be visualized on a transformation diagram (\"diamond diagram\"):\n\t//\n\t//          [the initial state]\n\t//         [common for a1 and b1]\n\t//\n\t//                   *\n\t//                  / \\\n\t//                 /   \\\n\t//               b1     a1\n\t//               /       \\\n\t//              /         \\\n\t//             *           *\n\t//            / \\         / \\\n\t//           /   \\       /   \\\n\t//         b2    a1'   b1'    a2\n\t//         /       \\   /       \\\n\t//        /         \\ /         \\\n\t//       *           *           *\n\t//        \\         / \\         /\n\t//         \\       /   \\       /\n\t//        a1''   b2'   a2'   b1''\n\t//           \\   /       \\   /\n\t//            \\ /         \\ /\n\t//             *           *\n\t//              \\         /\n\t//               \\       /\n\t//              a2''   b2''\n\t//                 \\   /\n\t//                  \\ /\n\t//                   *\n\t//\n\t//           [the final state]\n\t//\n\t// The final state can be reached from the initial state by applying `a1`, `a2`, `b1''` and `b2''`, as well as by\n\t// applying `b1`, `b2`, `a1''`, `a2''`. Note how the operations get to a proper common state before each pair is\n\t// transformed.\n\t//\n\t// Another thing to consider is that an operation during transformation can be broken into multiple operations.\n\t// Suppose that `a1` * `b1` = `[ a11', a12' ]` (instead of `a1'` that we considered previously).\n\t//\n\t// In that case, we leave `a12'` for later and we continue transforming `a11'` until it is transformed by all `operationsB`\n\t// (in our case it is just `b2`). At this point, `b1` is transformed by \"whole\" `a1`, while `b2` is only transformed\n\t// by `a11'`. Similarly, `a12'` is only transformed by `b1`. This leads to a conclusion that we need to start transforming `a12'`\n\t// from the moment just after it was broken. So, `a12'` is transformed by `b2`. Now, \"the whole\" `a1` is transformed\n\t// by `operationsB`, while all `operationsB` are transformed by \"the whole\" `a1`. This means that we can continue with\n\t// following `operationsA` (in our case it is just `a2`).\n\t//\n\t// Of course, also `operationsB` can be broken. However, since we focus on transforming operation `a` to the end,\n\t// the only thing to do is to store both pieces of operation `b`, so that the next transformed operation `a` will\n\t// be transformed by both of them.\n\t//\n\t//                       *\n\t//                      / \\\n\t//                     /   \\\n\t//                    /     \\\n\t//                  b1       a1\n\t//                  /         \\\n\t//                 /           \\\n\t//                /             \\\n\t//               *               *\n\t//              / \\             / \\\n\t//             /  a11'         /   \\\n\t//            /     \\         /     \\\n\t//          b2       *      b1'      a2\n\t//          /       / \\     /         \\\n\t//         /       /  a12' /           \\\n\t//        /       /     \\ /             \\\n\t//       *       b2'     *               *\n\t//        \\     /       / \\             /\n\t//       a11'' /     b21'' \\           /\n\t//          \\ /       /     \\         /\n\t//           *       *      a2'     b1''\n\t//            \\     / \\       \\     /\n\t//          a12'' b22''\\       \\   /\n\t//              \\ /     \\       \\ /\n\t//               *      a2''     *\n\t//                \\       \\     /\n\t//                 \\       \\  b21'''\n\t//                  \\       \\ /\n\t//                a2'''      *\n\t//                    \\     /\n\t//                     \\  b22'''\n\t//                      \\ /\n\t//                       *\n\t//\n\t// Note, how `a1` is broken and transformed into `a11'` and `a12'`, while `b2'` got broken and transformed into `b21''` and `b22''`.\n\t//\n\t// Having all that on mind, here is an outline for the transformation process algorithm:\n\t//\n\t// 1. We have `operationsA` and `operationsB` array, which we dynamically update as the transformation process goes.\n\t//\n\t// 2. We take next (or first) operation from `operationsA` and check from which operation `b` we need to start transforming it.\n\t// All original `operationsA` are set to be transformed starting from the first operation `b`.\n\t//\n\t// 3. We take operations from `operationsB`, one by one, starting from the correct one, and transform operation `a`\n\t// by operation `b` (and vice versa). We update `operationsA` and `operationsB` by replacing the original operations\n\t// with the transformation results.\n\t//\n\t// 4. If operation is broken into multiple operations, we save all the new operations in the place of the\n\t// original operation.\n\t//\n\t// 5. Additionally, if operation `a` was broken, for the \"new\" operation, we remember from which operation `b` it should\n\t// be transformed by.\n\t//\n\t// 6. We continue transforming \"current\" operation `a` until it is transformed by all `operationsB`. Then, go to 2.\n\t// unless the last operation `a` was transformed.\n\t//\n\t// The actual implementation of the above algorithm is slightly different, as only one loop (while) is used.\n\t// The difference is that we have \"current\" `a` operation to transform and we store the index of the next `b` operation\n\t// to transform by. Each loop operates on two indexes then: index pointing to currently processed `a` operation and\n\t// index pointing to next `b` operation. Each loop is just one `a * b` + `b * a` transformation. After each loop\n\t// operation `b` index is updated. If all `b` operations were visited for the current `a` operation, we change\n\t// current `a` operation index to the next one.\n\t//\n\n\t// For each operation `a`, keeps information what is the index in `operationsB` from which the transformation should start.\n\tconst nextTransformIndex = new WeakMap<Operation, number>();\n\n\t// For all the original `operationsA`, set that they should be transformed starting from the first of `operationsB`.\n\tfor ( const op of operationsA ) {\n\t\tnextTransformIndex.set( op, 0 );\n\t}\n\n\t// Additional data that is used for some postprocessing after the main transformation process is done.\n\tconst data = {\n\t\tnextBaseVersionA: operationsA[ operationsA.length - 1 ].baseVersion! + 1,\n\t\tnextBaseVersionB: operationsB[ operationsB.length - 1 ].baseVersion! + 1,\n\t\toriginalOperationsACount: operationsA.length,\n\t\toriginalOperationsBCount: operationsB.length\n\t};\n\n\t// Index of currently transformed operation `a`.\n\tlet i = 0;\n\n\t// While not all `operationsA` are transformed...\n\twhile ( i < operationsA.length ) {\n\t\t// Get \"current\" operation `a`.\n\t\tconst opA = operationsA[ i ];\n\n\t\t// For the \"current\" operation `a`, get the index of the next operation `b` to transform by.\n\t\tconst indexB = nextTransformIndex.get( opA )!;\n\n\t\t// If operation `a` was already transformed by every operation `b`, change \"current\" operation `a` to the next one.\n\t\tif ( indexB == operationsB.length ) {\n\t\t\ti++;\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst opB = operationsB[ indexB ];\n\n\t\t// Transform `a` by `b` and `b` by `a`.\n\t\tconst newOpsA = transform( opA, opB, contextFactory.getContext( opA, opB, true ) );\n\t\tconst newOpsB = transform( opB, opA, contextFactory.getContext( opB, opA, false ) );\n\t\t// As a result we get one or more `newOpsA` and one or more `newOpsB` operations.\n\n\t\t// Update contextual information about operations.\n\t\tcontextFactory.updateRelation( opA, opB );\n\n\t\tcontextFactory.setOriginalOperations( newOpsA, opA );\n\t\tcontextFactory.setOriginalOperations( newOpsB, opB );\n\n\t\t// For new `a` operations, update their index of the next operation `b` to transform them by.\n\t\t//\n\t\t// This is needed even if there was only one result (`a` was not broken) because that information is used\n\t\t// at the beginning of this loop every time.\n\t\tfor ( const newOpA of newOpsA ) {\n\t\t\t// Acknowledge, that operation `b` also might be broken into multiple operations.\n\t\t\t//\n\t\t\t// This is why we raise `indexB` not just by 1. If `newOpsB` are multiple operations, they will be\n\t\t\t// spliced in the place of `opB`. So we need to change `transformBy` accordingly, so that an operation won't\n\t\t\t// be transformed by the same operation (part of it) again.\n\t\t\tnextTransformIndex.set( newOpA, indexB + newOpsB.length );\n\t\t}\n\n\t\t// Update `operationsA` and `operationsB` with the transformed versions.\n\t\toperationsA.splice( i, 1, ...newOpsA );\n\t\toperationsB.splice( indexB, 1, ...newOpsB );\n\t}\n\n\tif ( options.padWithNoOps ) {\n\t\t// If no-operations padding is enabled, count how many extra `a` and `b` operations were generated.\n\t\tconst brokenOperationsACount = operationsA.length - data.originalOperationsACount;\n\t\tconst brokenOperationsBCount = operationsB.length - data.originalOperationsBCount;\n\n\t\t// Then, if that number is not the same, pad `operationsA` or `operationsB` with correct number of no-ops so\n\t\t// that the base versions are equalled.\n\t\t//\n\t\t// Note that only one array will be updated, as only one of those subtractions can be greater than zero.\n\t\tpadWithNoOps( operationsA, brokenOperationsBCount - brokenOperationsACount );\n\t\tpadWithNoOps( operationsB, brokenOperationsACount - brokenOperationsBCount );\n\t}\n\n\t// Finally, update base versions of transformed operations.\n\tupdateBaseVersions( operationsA, data.nextBaseVersionB );\n\tupdateBaseVersions( operationsB, data.nextBaseVersionA );\n\n\treturn { operationsA, operationsB, originalOperations };\n}\n\n// Gathers additional data about operations processed during transformation. Can be used to obtain contextual information\n// about two operations that are about to be transformed. This contextual information can be used for better conflict resolution.\nclass ContextFactory {\n\tpublic readonly originalOperations: Map<Operation, Operation>;\n\n\tprivate readonly _history: History;\n\tprivate readonly _useRelations?: boolean;\n\tprivate readonly _forceWeakRemove: boolean;\n\tprivate readonly _relations: Map<Operation, Map<Operation, any>>;\n\n\t// Creates `ContextFactory` instance.\n\t//\n\t// @param {module:engine/model/document~Document} document Document which the operations change.\n\t// @param {Boolean} useRelations Whether during transformation relations should be used (used during undo for\n\t// better conflict resolution).\n\t// @param {Boolean} [forceWeakRemove=false] If set to `false`, remove operation will be always stronger than move operation,\n\t// so the removed nodes won't end up back in the document root. When set to `true`, context data will be used.\n\tconstructor( document: Document, useRelations: boolean | undefined, forceWeakRemove = false ) {\n\t\t// For each operation that is created during transformation process, we keep a reference to the original operation\n\t\t// which it comes from. The original operation works as a kind of \"identifier\". Every contextual information\n\t\t// gathered during transformation that we want to save for given operation, is actually saved for the original operation.\n\t\t// This way no matter if operation `a` is cloned, then transformed, even breaks, we still have access to the previously\n\t\t// gathered data through original operation reference.\n\t\tthis.originalOperations = new Map();\n\n\t\t// `model.History` instance which information about undone operations will be taken from.\n\t\tthis._history = document.history;\n\n\t\t// Whether additional context should be used.\n\t\tthis._useRelations = useRelations;\n\n\t\tthis._forceWeakRemove = !!forceWeakRemove;\n\n\t\t// Relations is a double-map structure (maps in map) where for two operations we store how those operations were related\n\t\t// to each other. Those relations are evaluated during transformation process. For every transformated pair of operations\n\t\t// we keep relations between them.\n\t\tthis._relations = new Map();\n\t}\n\n\t// Sets \"original operation\" for given operations.\n\t//\n\t// During transformation process, operations are cloned, then changed, then processed again, sometimes broken into two\n\t// or multiple operations. When gathering additional data it is important that all operations can be somehow linked\n\t// so a cloned and transformed \"version\" still kept track of the data assigned earlier to it.\n\t//\n\t// The original operation object will be used as such an universal linking id. Throughout the transformation process\n\t// all cloned operations will refer to \"the original operation\" when storing and reading additional data.\n\t//\n\t// If `takeFrom` is not set, each operation from `operations` array will be assigned itself as \"the original operation\".\n\t// This should be used as an initialization step.\n\t//\n\t// If `takeFrom` is set, each operation from `operations` will be assigned the same original operation as assigned\n\t// for `takeFrom` operation. This should be used to update original operations. It should be used in a way that\n\t// `operations` are the result of `takeFrom` transformation to ensure proper \"original operation propagation\".\n\t//\n\t// @param {Array.<module:engine/model/operation/operation~Operation>} operations\n\t// @param {module:engine/model/operation/operation~Operation|null} [takeFrom=null]\n\tpublic setOriginalOperations( operations: Array<Operation>, takeFrom: Operation | null = null ): void {\n\t\tconst originalOperation = takeFrom ? this.originalOperations.get( takeFrom ) : null;\n\n\t\tfor ( const operation of operations ) {\n\t\t\tthis.originalOperations.set( operation, originalOperation || operation );\n\t\t}\n\t}\n\n\t// Saves a relation between operations `opA` and `opB`.\n\t//\n\t// Relations are then later used to help solve conflicts when operations are transformed.\n\t//\n\t// @param {module:engine/model/operation/operation~Operation} opA\n\t// @param {module:engine/model/operation/operation~Operation} opB\n\tpublic updateRelation( opA: Operation, opB: Operation ): void {\n\t\t// The use of relations is described in a bigger detail in transformation functions.\n\t\t//\n\t\t// In brief, this function, for specified pairs of operation types, checks how positions defined in those operations relate.\n\t\t// Then those relations are saved. For example, for two move operations, it is saved if one of those operations target\n\t\t// position is before the other operation source position. This kind of information gives contextual information when\n\t\t// transformation is used during undo. Similar checks are done for other pairs of operations.\n\t\t//\n\t\tif ( opA instanceof MoveOperation ) {\n\t\t\tif ( opB instanceof MergeOperation ) {\n\t\t\t\tif ( opA.targetPosition.isEqual( opB.sourcePosition ) || opB.movedRange.containsPosition( opA.targetPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertAtSource' );\n\t\t\t\t} else if ( opA.targetPosition.isEqual( opB.deletionPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertBetween' );\n\t\t\t\t} else if ( opA.targetPosition.isAfter( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'moveTargetAfter' );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof MoveOperation ) {\n\t\t\t\tif ( opA.targetPosition.isEqual( opB.sourcePosition ) || opA.targetPosition.isBefore( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertBefore' );\n\t\t\t\t} else {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertAfter' );\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( opA instanceof SplitOperation ) {\n\t\t\tif ( opB instanceof MergeOperation ) {\n\t\t\t\tif ( opA.splitPosition.isBefore( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'splitBefore' );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof MoveOperation ) {\n\t\t\t\tif ( opA.splitPosition.isEqual( opB.sourcePosition ) || opA.splitPosition.isBefore( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'splitBefore' );\n\t\t\t\t} else {\n\t\t\t\t\tconst range = Range._createFromPositionAndShift( opB.sourcePosition, opB.howMany );\n\n\t\t\t\t\tif ( opA.splitPosition.hasSameParentAs( opB.sourcePosition ) && range.containsPosition( opA.splitPosition ) ) {\n\t\t\t\t\t\tconst howMany = range.end.offset - opA.splitPosition.offset;\n\t\t\t\t\t\tconst offset = opA.splitPosition.offset - range.start.offset;\n\n\t\t\t\t\t\tthis._setRelation( opA, opB, { howMany, offset } );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( opA instanceof MergeOperation ) {\n\t\t\tif ( opB instanceof MergeOperation ) {\n\t\t\t\tif ( !opA.targetPosition.isEqual( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'mergeTargetNotMoved' );\n\t\t\t\t}\n\n\t\t\t\tif ( opA.sourcePosition.isEqual( opB.targetPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'mergeSourceNotMoved' );\n\t\t\t\t}\n\n\t\t\t\tif ( opA.sourcePosition.isEqual( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'mergeSameElement' );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof SplitOperation ) {\n\t\t\t\tif ( opA.sourcePosition.isEqual( opB.splitPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'splitAtSource' );\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( opA instanceof MarkerOperation ) {\n\t\t\tconst markerRange = opA.newRange;\n\n\t\t\tif ( !markerRange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( opB instanceof MoveOperation ) {\n\t\t\t\tconst movedRange = Range._createFromPositionAndShift( opB.sourcePosition, opB.howMany );\n\n\t\t\t\tconst affectedLeft = movedRange.containsPosition( markerRange.start ) ||\n\t\t\t\t\tmovedRange.start.isEqual( markerRange.start );\n\n\t\t\t\tconst affectedRight = movedRange.containsPosition( markerRange.end ) ||\n\t\t\t\t\tmovedRange.end.isEqual( markerRange.end );\n\n\t\t\t\tif ( ( affectedLeft || affectedRight ) && !movedRange.containsRange( markerRange ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, {\n\t\t\t\t\t\tside: affectedLeft ? 'left' : 'right',\n\t\t\t\t\t\tpath: affectedLeft ? markerRange.start.path.slice() : markerRange.end.path.slice()\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof MergeOperation ) {\n\t\t\t\tconst wasInLeftElement = markerRange.start.isEqual( opB.targetPosition );\n\t\t\t\tconst wasStartBeforeMergedElement = markerRange.start.isEqual( opB.deletionPosition );\n\t\t\t\tconst wasEndBeforeMergedElement = markerRange.end.isEqual( opB.deletionPosition );\n\t\t\t\tconst wasInRightElement = markerRange.end.isEqual( opB.sourcePosition );\n\n\t\t\t\tif ( wasInLeftElement || wasStartBeforeMergedElement || wasEndBeforeMergedElement || wasInRightElement ) {\n\t\t\t\t\tthis._setRelation( opA, opB, {\n\t\t\t\t\t\twasInLeftElement,\n\t\t\t\t\t\twasStartBeforeMergedElement,\n\t\t\t\t\t\twasEndBeforeMergedElement,\n\t\t\t\t\t\twasInRightElement\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Evaluates and returns contextual information about two given operations `opA` and `opB` which are about to be transformed.\n\t//\n\t// @param {module:engine/model/operation/operation~Operation} opA\n\t// @param {module:engine/model/operation/operation~Operation} opB\n\t// @returns {module:engine/model/operation/transform~TransformationContext}\n\tpublic getContext( opA: Operation, opB: Operation, aIsStrong: boolean ): TransformationContext {\n\t\treturn {\n\t\t\taIsStrong,\n\t\t\taWasUndone: this._wasUndone( opA ),\n\t\t\tbWasUndone: this._wasUndone( opB ),\n\t\t\tabRelation: this._useRelations ? this._getRelation( opA, opB ) : null,\n\t\t\tbaRelation: this._useRelations ? this._getRelation( opB, opA ) : null,\n\t\t\tforceWeakRemove: this._forceWeakRemove\n\t\t};\n\t}\n\n\t// Returns whether given operation `op` has already been undone.\n\t//\n\t// Information whether an operation was undone gives more context when making a decision when two operations are in conflict.\n\t//\n\t// @param {module:engine/model/operation/operation~Operation} op\n\t// @returns {Boolean}\n\tpublic _wasUndone( op: Operation ): boolean {\n\t\t// For `op`, get its original operation. After all, if `op` is a clone (or even transformed clone) of another\n\t\t// operation, literally `op` couldn't be undone. It was just generated. If anything, it was the operation it origins\n\t\t// from which was undone. So get that original operation.\n\t\tconst originalOp = this.originalOperations.get( op )!;\n\n\t\t// And check with the document if the original operation was undone.\n\t\treturn ( originalOp as any ).wasUndone || this._history.isUndoneOperation( originalOp );\n\t}\n\n\t// Returns a relation between `opA` and an operation which is undone by `opB`. This can be `String` value if a relation\n\t// was set earlier or `null` if there was no relation between those operations.\n\t//\n\t// This is a little tricky to understand, so let's compare it to `ContextFactory#_wasUndone`.\n\t//\n\t// When `wasUndone( opB )` is used, we check if the `opB` has already been undone. It is obvious, that the\n\t// undoing operation must happen after the undone operation. So, essentially, we have `opB`, we take document history,\n\t// we look forward in the future and ask if in that future `opB` was undone.\n\t//\n\t// Relations is a backward process to `wasUndone()`.\n\t//\n\t// Long story short - using relations is asking what happened in the past. Looking back. This time we have an undoing\n\t// operation `opB` which has undone some other operation. When there is a transformation `opA` x `opB` and there is\n\t// a conflict to solve and `opB` is an undoing operation, we can look back in the history and see what was a relation\n\t// between `opA` and the operation which `opB` undone. Basing on that relation from the past, we can now make\n\t// a better decision when resolving a conflict between two operations, because we know more about the context of\n\t// those two operations.\n\t//\n\t// This is why this function does not return a relation directly between `opA` and `opB` because we need to look\n\t// back to search for a meaningful contextual information.\n\t//\n\t// @param {module:engine/model/operation/operation~Operation} opA\n\t// @param {module:engine/model/operation/operation~Operation} opB\n\t// @returns {String|null}\n\tpublic _getRelation( opA: Operation, opB: Operation ): any {\n\t\t// Get the original operation. Similarly as in `wasUndone()` it is used as an universal identifier for stored data.\n\t\tconst origB = this.originalOperations.get( opB )!;\n\t\tconst undoneB = this._history.getUndoneOperation( origB );\n\n\t\t// If `opB` is not undoing any operation, there is no relation.\n\t\tif ( !undoneB ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst origA = this.originalOperations.get( opA )!;\n\t\tconst relationsA = this._relations.get( origA );\n\n\t\t// Get all relations for `opA`, and check if there is a relation with `opB`-undone-counterpart. If so, return it.\n\t\tif ( relationsA ) {\n\t\t\treturn relationsA.get( undoneB ) || null;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t// Helper function for `ContextFactory#updateRelations`.\n\t//\n\t// @private\n\t// @param {module:engine/model/operation/operation~Operation} opA\n\t// @param {module:engine/model/operation/operation~Operation} opB\n\t// @param {String} relation\n\tprivate _setRelation( opA: Operation, opB: Operation, relation: any ): void {\n\t\t// As always, setting is for original operations, not the clones/transformed operations.\n\t\tconst origA = this.originalOperations.get( opA )!;\n\t\tconst origB = this.originalOperations.get( opB )!;\n\n\t\tlet relationsA = this._relations.get( origA );\n\n\t\tif ( !relationsA ) {\n\t\t\trelationsA = new Map();\n\t\t\tthis._relations.set( origA, relationsA );\n\t\t}\n\n\t\trelationsA.set( origB, relation );\n\t}\n}\n\n/**\n * Holds additional contextual information about a transformed pair of operations (`a` and `b`). Those information\n * can be used for better conflict resolving.\n *\n * @typedef {Object} module:engine/model/operation/transform~TransformationContext\n *\n * @property {Boolean} aIsStrong Whether `a` is strong operation in this transformation, or weak.\n * @property {Boolean} aWasUndone Whether `a` operation was undone.\n * @property {Boolean} bWasUndone Whether `b` operation was undone.\n * @property {String|Object|null} abRelation The relation between `a` operation and an operation undone by `b` operation.\n * @property {String|Object|null} baRelation The relation between `b` operation and an operation undone by `a` operation.\n */\n\nexport type TransformationContext = {\n\taIsStrong?: boolean;\n\taWasUndone?: boolean;\n\tbWasUndone?: boolean;\n\tabRelation?: any;\n\tbaRelation?: any;\n\tforceWeakRemove?: boolean;\n};\n\n/**\n * An utility function that updates {@link module:engine/model/operation/operation~Operation#baseVersion base versions}\n * of passed operations.\n *\n * The function simply sets `baseVersion` as a base version of the first passed operation and then increments it for\n * each following operation in `operations`.\n *\n * @private\n * @param {Array.<module:engine/model/operation/operation~Operation>} operations Operations to update.\n * @param {Number} baseVersion Base version to set for the first operation in `operations`.\n */\nfunction updateBaseVersions( operations: ReadonlyArray<Operation>, baseVersion: number ) {\n\tfor ( const operation of operations ) {\n\t\toperation.baseVersion = baseVersion++;\n\t}\n}\n\n/**\n * Adds `howMany` instances of {@link module:engine/model/operation/nooperation~NoOperation} to `operations` set.\n *\n * @private\n * @param {Array.<module:engine/model/operation/operation~Operation>} operations\n * @param {Number} howMany\n */\nfunction padWithNoOps( operations: Array<Operation>, howMany: number ) {\n\tfor ( let i = 0; i < howMany; i++ ) {\n\t\toperations.push( new NoOperation( 0 ) );\n\t}\n}\n\n// -----------------------\n\nsetTransformation( AttributeOperation, AttributeOperation, ( a, b, context ) => {\n\t// If operations in conflict, check if their ranges intersect and manage them properly.\n\t//\n\t// Operations can be in conflict only if:\n\t//\n\t// * their key is the same (they change the same attribute), and\n\t// * they are in the same parent (operations for ranges [ 1 ] - [ 3 ] and [ 2, 0 ] - [ 2, 5 ] change different\n\t// elements and can't be in conflict).\n\tif ( a.key === b.key && a.range.start.hasSameParentAs( b.range.start ) ) {\n\t\t// First, we want to apply change to the part of a range that has not been changed by the other operation.\n\t\tconst operations = a.range.getDifference( b.range ).map( range => {\n\t\t\treturn new AttributeOperation( range, a.key, a.oldValue, a.newValue, 0 );\n\t\t} );\n\n\t\t// Then we take care of the common part of ranges.\n\t\tconst common = a.range.getIntersection( b.range );\n\n\t\tif ( common ) {\n\t\t\t// If this operation is more important, we also want to apply change to the part of the\n\t\t\t// original range that has already been changed by the other operation. Since that range\n\t\t\t// got changed we also have to update `oldValue`.\n\t\t\tif ( context.aIsStrong ) {\n\t\t\t\toperations.push( new AttributeOperation( common, b.key, b.newValue, a.newValue, 0 ) );\n\t\t\t}\n\t\t}\n\n\t\tif ( operations.length == 0 ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\n\t\treturn operations;\n\t} else {\n\t\t// If operations don't conflict, simply return an array containing just a clone of this operation.\n\t\treturn [ a ];\n\t}\n} );\n\nsetTransformation( AttributeOperation, InsertOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// The attribute operation range includes the position where nodes were inserted.\n\t// There are two possible scenarios: the inserted nodes were text and they should receive attributes or\n\t// the inserted nodes were elements and they should not receive attributes.\n\t//\n\tif ( a.range.start.hasSameParentAs( b.position ) && a.range.containsPosition( b.position ) ) {\n\t\t// If new nodes should not receive attributes, two separated ranges will be returned.\n\t\t// Otherwise, one expanded range will be returned.\n\t\tconst range = a.range._getTransformedByInsertion( b.position, b.howMany, !b.shouldReceiveAttributes );\n\t\tconst result = range.map( r => {\n\t\t\treturn new AttributeOperation( r, a.key, a.oldValue, a.newValue, a.baseVersion );\n\t\t} );\n\n\t\tif ( b.shouldReceiveAttributes ) {\n\t\t\t// `AttributeOperation#range` includes some newly inserted text.\n\t\t\t// The operation should also change the attribute of that text. An example:\n\t\t\t//\n\t\t\t// Bold should be applied on the following range:\n\t\t\t// <p>Fo[zb]ar</p>\n\t\t\t//\n\t\t\t// In meantime, new text is typed:\n\t\t\t// <p>Fozxxbar</p>\n\t\t\t//\n\t\t\t// Bold should be applied also on the new text:\n\t\t\t// <p>Fo[zxxb]ar</p>\n\t\t\t// <p>Fo<$text bold=\"true\">zxxb</$text>ar</p>\n\t\t\t//\n\t\t\t// There is a special case to consider here to consider.\n\t\t\t//\n\t\t\t// Consider setting an attribute with multiple possible values, for example `highlight`. The inserted text might\n\t\t\t// have already an attribute value applied and the `oldValue` property of the attribute operation might be wrong:\n\t\t\t//\n\t\t\t// Attribute `highlight=\"yellow\"` should be applied on the following range:\n\t\t\t// <p>Fo[zb]ar<p>\n\t\t\t//\n\t\t\t// In meantime, character `x` with `highlight=\"red\"` is typed:\n\t\t\t// <p>Fo[z<$text highlight=\"red\">x</$text>b]ar</p>\n\t\t\t//\n\t\t\t// In this case we cannot simply apply operation changing the attribute value from `null` to `\"yellow\"` for the whole range\n\t\t\t// because that would lead to an exception (`oldValue` is incorrect for `x`).\n\t\t\t//\n\t\t\t// We also cannot break the original range as this would mess up a scenario when there are multiple following\n\t\t\t// insert operations, because then only the first inserted character is included in those ranges:\n\t\t\t// <p>Fo[z][x][b]ar</p>   -->   <p>Fo[z][x]x[b]ar</p>   -->   <p>Fo[z][x]xx[b]ar</p>\n\t\t\t//\n\t\t\t// So, the attribute range needs be expanded, no matter what attributes are set on the inserted nodes:\n\t\t\t//\n\t\t\t// <p>Fo[z<$text highlight=\"red\">x</$text>b]ar</p>      <--- Change from `null` to `yellow`, throwing an exception.\n\t\t\t//\n\t\t\t// But before that operation would be applied, we will add an additional attribute operation that will change\n\t\t\t// attributes on the inserted nodes in a way which would make the original operation correct:\n\t\t\t//\n\t\t\t// <p>Fo[z{<$text highlight=\"red\">}x</$text>b]ar</p>    <--- Change range `{}` from `red` to `null`.\n\t\t\t// <p>Fo[zxb]ar</p>                                     <--- Now change from `null` to `yellow` is completely fine.\n\t\t\t//\n\n\t\t\t// Generate complementary attribute operation. Be sure to add it before the original operation.\n\t\t\tconst op = _getComplementaryAttributeOperations( b, a.key, a.oldValue );\n\n\t\t\tif ( op ) {\n\t\t\t\tresult.unshift( op );\n\t\t\t}\n\t\t}\n\n\t\t// If nodes should not receive new attribute, we are done here.\n\t\treturn result;\n\t}\n\n\t// If insert operation is not expanding the attribute operation range, simply transform the range.\n\ta.range = a.range._getTransformedByInsertion( b.position, b.howMany, false )[ 0 ];\n\n\treturn [ a ];\n} );\n\n/**\n * Helper function for `AttributeOperation` x `InsertOperation` (and reverse) transformation.\n *\n * For given `insertOperation` it checks the inserted node if it has an attribute `key` set to a value different\n * than `newValue`. If so, it generates an `AttributeOperation` which changes the value of `key` attribute to `newValue`.\n *\n * @private\n * @param {module:engine/model/operation/insertoperation~InsertOperation} insertOperation\n * @param {String} key\n * @param {*} newValue\n * @returns {module:engine/model/operation/attributeoperation~AttributeOperation|null}\n */\nfunction _getComplementaryAttributeOperations( insertOperation: InsertOperation, key: string, newValue: unknown ) {\n\tconst nodes = insertOperation.nodes;\n\n\t// At the beginning we store the attribute value from the first node.\n\tconst insertValue = nodes.getNode( 0 )!.getAttribute( key );\n\n\tif ( insertValue == newValue ) {\n\t\treturn null;\n\t}\n\n\tconst range = new Range( insertOperation.position, insertOperation.position.getShiftedBy( insertOperation.howMany ) );\n\n\treturn new AttributeOperation( range, key, insertValue, newValue, 0 );\n}\n\nsetTransformation( AttributeOperation, MergeOperation, ( a, b ) => {\n\tconst ranges = [];\n\n\t// Case 1:\n\t//\n\t// Attribute change on the merged element. In this case, the merged element was moved to the graveyard.\n\t// An additional attribute operation that will change the (re)moved element needs to be generated.\n\t//\n\tif ( a.range.start.hasSameParentAs( b.deletionPosition ) ) {\n\t\tif ( a.range.containsPosition( b.deletionPosition ) || a.range.start.isEqual( b.deletionPosition ) ) {\n\t\t\tranges.push( Range._createFromPositionAndShift( b.graveyardPosition, 1 ) );\n\t\t}\n\t}\n\n\tconst range = a.range._getTransformedByMergeOperation( b );\n\n\t// Do not add empty (collapsed) ranges to the result. `range` may be collapsed if it contained only the merged element.\n\tif ( !range.isCollapsed ) {\n\t\tranges.push( range );\n\t}\n\n\t// Create `AttributeOperation`s out of the ranges.\n\treturn ranges.map( range => {\n\t\treturn new AttributeOperation( range, a.key, a.oldValue, a.newValue, a.baseVersion );\n\t} );\n} );\n\nsetTransformation( AttributeOperation, MoveOperation, ( a, b ) => {\n\tconst ranges = _breakRangeByMoveOperation( a.range, b );\n\n\t// Create `AttributeOperation`s out of the ranges.\n\treturn ranges.map( range => new AttributeOperation( range, a.key, a.oldValue, a.newValue, a.baseVersion ) );\n} );\n\n// Helper function for `AttributeOperation` x `MoveOperation` transformation.\n//\n// Takes the passed `range` and transforms it by move operation `moveOp` in a specific way. Only top-level nodes of `range`\n// are considered to be in the range. If move operation moves nodes deep from inside of the range, those nodes won't\n// be included in the result. In other words, top-level nodes of the ranges from the result are exactly the same as\n// top-level nodes of the original `range`.\n//\n// This is important for `AttributeOperation` because, for its range, it changes only the top-level nodes. So we need to\n// track only how those nodes have been affected by `MoveOperation`.\n//\n// @private\n// @param {module:engine/model/range~Range} range\n// @param {module:engine/model/operation/moveoperation~MoveOperation} moveOp\n// @returns {Array.<module:engine/model/range~Range>}\nfunction _breakRangeByMoveOperation( range: Range, moveOp: MoveOperation ) {\n\tconst moveRange = Range._createFromPositionAndShift( moveOp.sourcePosition, moveOp.howMany );\n\n\t// We are transforming `range` (original range) by `moveRange` (range moved by move operation). As usual when it comes to\n\t// transforming a ranges, we may have a common part of the ranges and we may have a difference part (zero to two ranges).\n\tlet common = null;\n\tlet difference: Array<Range> = [];\n\n\t// Let's compare the ranges.\n\tif ( moveRange.containsRange( range, true ) ) {\n\t\t// If the whole original range is moved, treat it whole as a common part. There's also no difference part.\n\t\tcommon = range;\n\t} else if ( range.start.hasSameParentAs( moveRange.start ) ) {\n\t\t// If the ranges are \"on the same level\" (in the same parent) then move operation may move exactly those nodes\n\t\t// that are changed by the attribute operation. In this case we get common part and difference part in the usual way.\n\t\tdifference = range.getDifference( moveRange );\n\t\tcommon = range.getIntersection( moveRange );\n\t} else {\n\t\t// In any other situation we assume that original range is different than move range, that is that move operation\n\t\t// moves other nodes that attribute operation change. Even if the moved range is deep inside in the original range.\n\t\t//\n\t\t// Note that this is different than in `.getIntersection` (we would get a common part in that case) and different\n\t\t// than `.getDifference` (we would get two ranges).\n\t\tdifference = [ range ];\n\t}\n\n\tconst result: Array<Range> = [];\n\n\t// The default behaviour of `_getTransformedByMove` might get wrong results for difference part, though, so\n\t// we do it by hand.\n\tfor ( let diff of difference ) {\n\t\t// First, transform the range by removing moved nodes. Since this is a difference, this is safe, `null` won't be returned\n\t\t// as the range is different than the moved range.\n\t\tdiff = diff._getTransformedByDeletion( moveOp.sourcePosition, moveOp.howMany )!;\n\n\t\t// Transform also `targetPosition`.\n\t\tconst targetPosition = moveOp.getMovedRangeStart();\n\n\t\t// Spread the range only if moved nodes are inserted only between the top-level nodes of the `diff` range.\n\t\tconst spread = diff.start.hasSameParentAs( targetPosition );\n\n\t\t// Transform by insertion of moved nodes.\n\t\tconst diffs = diff._getTransformedByInsertion( targetPosition, moveOp.howMany, spread );\n\n\t\tresult.push( ...diffs );\n\t}\n\n\t// Common part can be simply transformed by the move operation. This is because move operation will not target to\n\t// that common part (the operation would have to target inside its own moved range).\n\tif ( common ) {\n\t\tresult.push(\n\t\t\tcommon._getTransformedByMove( moveOp.sourcePosition, moveOp.targetPosition, moveOp.howMany, false )[ 0 ]\n\t\t);\n\t}\n\n\treturn result;\n}\n\nsetTransformation( AttributeOperation, SplitOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// Split node is the last node in `AttributeOperation#range`.\n\t// `AttributeOperation#range` needs to be expanded to include the new (split) node.\n\t//\n\t// Attribute `type` to be changed to `numbered` but the `listItem` is split.\n\t// <listItem type=\"bulleted\">foobar</listItem>\n\t//\n\t// After split:\n\t// <listItem type=\"bulleted\">foo</listItem><listItem type=\"bulleted\">bar</listItem>\n\t//\n\t// After attribute change:\n\t// <listItem type=\"numbered\">foo</listItem><listItem type=\"numbered\">foo</listItem>\n\t//\n\tif ( a.range.end.isEqual( b.insertionPosition ) ) {\n\t\tif ( !b.graveyardPosition ) {\n\t\t\ta.range.end.offset++;\n\t\t}\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 2:\n\t//\n\t// Split position is inside `AttributeOperation#range`, at the same level, so the nodes to change are\n\t// not going to make a flat range.\n\t//\n\t// Content with range-to-change and split position:\n\t// <p>Fo[zb^a]r</p>\n\t//\n\t// After split:\n\t// <p>Fozb</p><p>ar</p>\n\t//\n\t// Make two separate ranges containing all nodes to change:\n\t// <p>Fo[zb]</p><p>[a]r</p>\n\t//\n\tif ( a.range.start.hasSameParentAs( b.splitPosition ) && a.range.containsPosition( b.splitPosition ) ) {\n\t\tconst secondPart = a.clone();\n\n\t\tsecondPart.range = new Range(\n\t\t\tb.moveTargetPosition.clone(),\n\t\t\ta.range.end._getCombined( b.splitPosition, b.moveTargetPosition )\n\t\t);\n\n\t\t( a.range as any ).end = b.splitPosition.clone();\n\t\ta.range.end.stickiness = 'toPrevious';\n\n\t\treturn [ a, secondPart ];\n\t}\n\n\t// The default case.\n\t//\n\ta.range = a.range._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, AttributeOperation, ( a, b ) => {\n\tconst result: Array<Operation> = [ a ];\n\n\t// Case 1:\n\t//\n\t// The attribute operation range includes the position where nodes were inserted.\n\t// There are two possible scenarios: the inserted nodes were text and they should receive attributes or\n\t// the inserted nodes were elements and they should not receive attributes.\n\t//\n\t// This is a mirror scenario to the one described in `AttributeOperation` x `InsertOperation` transformation,\n\t// although this case is a little less complicated. In this case we simply need to change attributes of the\n\t// inserted nodes and that's it.\n\t//\n\tif ( a.shouldReceiveAttributes && a.position.hasSameParentAs( b.range.start ) && b.range.containsPosition( a.position ) ) {\n\t\tconst op = _getComplementaryAttributeOperations( a, b.key, b.newValue );\n\n\t\tif ( op ) {\n\t\t\tresult.push( op );\n\t\t}\n\t}\n\n\t// The default case is: do nothing.\n\t// `AttributeOperation` does not change the model tree structure so `InsertOperation` does not need to be changed.\n\t//\n\treturn result;\n} );\n\nsetTransformation( InsertOperation, InsertOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Two insert operations insert nodes at the same position. Since they are the same, it needs to be decided\n\t// what will be the order of inserted nodes. However, there is no additional information to help in that\n\t// decision. Also, when `b` will be transformed by `a`, the same order must be maintained.\n\t//\n\t// To achieve that, we will check if the operation is strong.\n\t// If it is, it won't get transformed. If it is not, it will be moved.\n\t//\n\tif ( a.position.isEqual( b.position ) && context.aIsStrong ) {\n\t\treturn [ a ];\n\t}\n\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, MoveOperation, ( a, b ) => {\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedByMoveOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, SplitOperation, ( a, b ) => {\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, MergeOperation, ( a, b ) => {\n\ta.position = a.position._getTransformedByMergeOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( MarkerOperation, InsertOperation, ( a, b ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = a.oldRange._getTransformedByInsertOperation( b )[ 0 ];\n\t}\n\n\tif ( a.newRange ) {\n\t\ta.newRange = a.newRange._getTransformedByInsertOperation( b )[ 0 ];\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, MarkerOperation, ( a, b, context ) => {\n\tif ( a.name == b.name ) {\n\t\tif ( context.aIsStrong ) {\n\t\t\ta.oldRange = b.newRange ? b.newRange.clone() : null;\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, MergeOperation, ( a, b ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = a.oldRange._getTransformedByMergeOperation( b );\n\t}\n\n\tif ( a.newRange ) {\n\t\ta.newRange = a.newRange._getTransformedByMergeOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, MoveOperation, ( a, b, context ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = Range._createFromRanges( a.oldRange._getTransformedByMoveOperation( b ) );\n\t}\n\n\tif ( a.newRange ) {\n\t\tif ( context.abRelation ) {\n\t\t\tconst aNewRange = Range._createFromRanges( a.newRange._getTransformedByMoveOperation( b ) );\n\n\t\t\tif ( context.abRelation.side == 'left' && b.targetPosition.isEqual( a.newRange.start ) ) {\n\t\t\t\t( a.newRange as any ).end = aNewRange.end;\n\t\t\t\ta.newRange.start.path = context.abRelation.path;\n\n\t\t\t\treturn [ a ];\n\t\t\t} else if ( context.abRelation.side == 'right' && b.targetPosition.isEqual( a.newRange.end ) ) {\n\t\t\t\t( a.newRange as any ).start = aNewRange.start;\n\t\t\t\ta.newRange.end.path = context.abRelation.path;\n\n\t\t\t\treturn [ a ];\n\t\t\t}\n\t\t}\n\n\t\ta.newRange = Range._createFromRanges( a.newRange._getTransformedByMoveOperation( b ) );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, SplitOperation, ( a, b, context ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = a.oldRange._getTransformedBySplitOperation( b );\n\t}\n\n\tif ( a.newRange ) {\n\t\tif ( context.abRelation ) {\n\t\t\tconst aNewRange = a.newRange._getTransformedBySplitOperation( b );\n\n\t\t\tif ( a.newRange.start.isEqual( b.splitPosition ) && context.abRelation.wasStartBeforeMergedElement ) {\n\t\t\t\t( a.newRange as any ).start = Position._createAt( b.insertionPosition );\n\t\t\t} else if ( a.newRange.start.isEqual( b.splitPosition ) && !context.abRelation.wasInLeftElement ) {\n\t\t\t\t( a.newRange as any ).start = Position._createAt( b.moveTargetPosition );\n\t\t\t}\n\n\t\t\tif ( a.newRange.end.isEqual( b.splitPosition ) && context.abRelation.wasInRightElement ) {\n\t\t\t\t( a.newRange as any ).end = Position._createAt( b.moveTargetPosition );\n\t\t\t} else if ( a.newRange.end.isEqual( b.splitPosition ) && context.abRelation.wasEndBeforeMergedElement ) {\n\t\t\t\t( a.newRange as any ).end = Position._createAt( b.insertionPosition );\n\t\t\t} else {\n\t\t\t\t( a.newRange as any ).end = aNewRange.end;\n\t\t\t}\n\n\t\t\treturn [ a ];\n\t\t}\n\n\t\ta.newRange = a.newRange._getTransformedBySplitOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( MergeOperation, InsertOperation, ( a, b ) => {\n\tif ( a.sourcePosition.hasSameParentAs( b.position ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedByInsertOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( MergeOperation, MergeOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Same merge operations.\n\t//\n\t// Both operations have same source and target positions. So the element already got merged and there is\n\t// theoretically nothing to do.\n\t//\n\tif ( a.sourcePosition.isEqual( b.sourcePosition ) && a.targetPosition.isEqual( b.targetPosition ) ) {\n\t\t// There are two ways that we can provide a do-nothing operation.\n\t\t//\n\t\t// First is simply a NoOperation instance. We will use it if `b` operation was not undone.\n\t\t//\n\t\t// Second is a merge operation that has the source operation in the merged element - in the graveyard -\n\t\t// same target position and `howMany` equal to `0`. So it is basically merging an empty element from graveyard\n\t\t// which is almost the same as NoOperation.\n\t\t//\n\t\t// This way the merge operation can be later transformed by split operation\n\t\t// to provide correct undo. This will be used if `b` operation was undone (only then it is correct).\n\t\t//\n\t\tif ( !context.bWasUndone ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t} else {\n\t\t\tconst path = b.graveyardPosition.path.slice();\n\t\t\tpath.push( 0 );\n\n\t\t\ta.sourcePosition = new Position( b.graveyardPosition.root, path );\n\t\t\ta.howMany = 0;\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// Case 2:\n\t//\n\t// Same merge source position but different target position.\n\t//\n\t// This can happen during collaboration. For example, if one client merged a paragraph to the previous paragraph\n\t// and the other person removed that paragraph and merged the same paragraph to something before:\n\t//\n\t// Client A:\n\t// <p>Foo</p><p>Bar</p><p>[]Xyz</p>\n\t// <p>Foo</p><p>BarXyz</p>\n\t//\n\t// Client B:\n\t// <p>Foo</p>[<p>Bar</p>]<p>Xyz</p>\n\t// <p>Foo</p><p>[]Xyz</p>\n\t// <p>FooXyz</p>\n\t//\n\t// In this case we need to decide where finally \"Xyz\" will land:\n\t//\n\t// <p>FooXyz</p>               graveyard: <p>Bar</p>\n\t// <p>Foo</p>                  graveyard: <p>BarXyz</p>\n\t//\n\t// Let's move it in a way so that a merge operation that does not target to graveyard is more important so that\n\t// nodes does not end up in the graveyard. It makes sense. Both for Client A and for Client B \"Xyz\" finally did not\n\t// end up in the graveyard (see above).\n\t//\n\t// If neither or both operations point to graveyard, then let `aIsStrong` decide.\n\t//\n\tif (\n\t\ta.sourcePosition.isEqual( b.sourcePosition ) && !a.targetPosition.isEqual( b.targetPosition ) &&\n\t\t!context.bWasUndone && context.abRelation != 'splitAtSource'\n\t) {\n\t\tconst aToGraveyard = a.targetPosition.root.rootName == '$graveyard';\n\t\tconst bToGraveyard = b.targetPosition.root.rootName == '$graveyard';\n\n\t\t// If `aIsWeak` it means that `a` points to graveyard while `b` doesn't. Don't move nodes then.\n\t\tconst aIsWeak = aToGraveyard && !bToGraveyard;\n\n\t\t// If `bIsWeak` it means that `b` points to graveyard while `a` doesn't. Force moving nodes then.\n\t\tconst bIsWeak = bToGraveyard && !aToGraveyard;\n\n\t\t// Force move if `b` is weak or neither operation is weak but `a` is stronger through `context.aIsStrong`.\n\t\tconst forceMove = bIsWeak || ( !aIsWeak && context.aIsStrong );\n\n\t\tif ( forceMove ) {\n\t\t\tconst sourcePosition = b.targetPosition._getTransformedByMergeOperation( b );\n\t\t\tconst targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\t\t\treturn [ new MoveOperation( sourcePosition, a.howMany, targetPosition, 0 ) ];\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.sourcePosition.hasSameParentAs( b.targetPosition ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedByMergeOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\t// Handle positions in graveyard.\n\t// If graveyard positions are same and `a` operation is strong - do not transform.\n\tif ( !a.graveyardPosition.isEqual( b.graveyardPosition ) || !context.aIsStrong ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMergeOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MergeOperation, MoveOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// The element to merge got removed.\n\t//\n\t// Merge operation does support merging elements which are not siblings. So it would not be a problem\n\t// from technical point of view. However, if the element was removed, the intention of the user deleting it\n\t// was to have it all deleted, together with its children. From user experience point of view, moving back the\n\t// removed nodes might be unexpected. This means that in this scenario we will block the merging.\n\t//\n\t// The exception of this rule would be if the remove operation was later undone.\n\t//\n\tconst removedRange = Range._createFromPositionAndShift( b.sourcePosition, b.howMany );\n\n\tif ( b.type == 'remove' && !context.bWasUndone && !context.forceWeakRemove ) {\n\t\tif ( a.deletionPosition.hasSameParentAs( b.sourcePosition ) && removedRange.containsPosition( a.sourcePosition ) ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.sourcePosition.hasSameParentAs( b.targetPosition ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\tif ( a.sourcePosition.hasSameParentAs( b.sourcePosition ) ) {\n\t\ta.howMany -= b.howMany;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedByMoveOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedByMoveOperation( b );\n\n\t// `MergeOperation` graveyard position is like `MoveOperation` target position. It is a position where element(s) will\n\t// be moved. Like in other similar cases, we need to consider the scenario when those positions are same.\n\t// Here, we will treat `MergeOperation` like it is always strong (see `InsertOperation` x `InsertOperation` for comparison).\n\t// This means that we won't transform graveyard position if it is equal to move operation target position.\n\tif ( !a.graveyardPosition.isEqual( b.targetPosition ) ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMoveOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MergeOperation, SplitOperation, ( a, b, context ) => {\n\tif ( b.graveyardPosition ) {\n\t\t// If `b` operation defines graveyard position, a node from graveyard will be moved. This means that we need to\n\t\t// transform `a.graveyardPosition` accordingly.\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByDeletion( b.graveyardPosition, 1 )!;\n\n\t\t// This is a scenario foreseen in `MergeOperation` x `MergeOperation`, with two identical merge operations.\n\t\t//\n\t\t// So, there was `MergeOperation` x `MergeOperation` transformation earlier. Now, `a` is a merge operation which\n\t\t// source position is in graveyard. Interestingly, split operation wants to use the node to be merged by `a`. This\n\t\t// means that `b` is undoing that merge operation from earlier, which caused `a` to be in graveyard.\n\t\t//\n\t\t// If that's the case, at this point, we will only \"fix\" `a.howMany`. It was earlier set to `0` in\n\t\t// `MergeOperation` x `MergeOperation` transformation. Later transformations in this function will change other\n\t\t// properties.\n\t\t//\n\t\tif ( a.deletionPosition.isEqual( b.graveyardPosition ) ) {\n\t\t\ta.howMany = b.howMany;\n\t\t}\n\t}\n\n\t// Case 1:\n\t//\n\t// Merge operation moves nodes to the place where split happens.\n\t// This is a classic situation when there are two paragraphs, and there is a split (enter) after the first\n\t// paragraph and there is a merge (delete) at the beginning of the second paragraph:\n\t//\n\t// <p>Foo{}</p><p>[]Bar</p>.\n\t//\n\t// Split is after `Foo`, while merge is from `Bar` to the end of `Foo`.\n\t//\n\t// State after split:\n\t// <p>Foo</p><p></p><p>Bar</p>\n\t//\n\t// Now, `Bar` should be merged to the new paragraph:\n\t// <p>Foo</p><p>Bar</p>\n\t//\n\t// Instead of merging it to the original paragraph:\n\t// <p>FooBar</p><p></p>\n\t//\n\t// This means that `targetPosition` needs to be transformed. This is the default case though.\n\t// For example, if the split would be after `F`, `targetPosition` should also be transformed.\n\t//\n\t// There are three exceptions, though, when we want to keep `targetPosition` as it was.\n\t//\n\t// First exception is when the merge target position is inside an element (not at the end, as usual). This\n\t// happens when the merge operation earlier was transformed by \"the same\" merge operation. If merge operation\n\t// targets inside the element we want to keep the original target position (and not transform it) because\n\t// we have additional context telling us that we want to merge to the original element. We can check if the\n\t// merge operation points inside element by checking what is `SplitOperation#howMany`. Since merge target position\n\t// is same as split position, if `howMany` is non-zero, it means that the merge target position is inside an element.\n\t//\n\t// Second exception is when the element to merge is in the graveyard and split operation uses it. In that case\n\t// if target position would be transformed, the merge operation would target at the source position:\n\t//\n\t// root: <p>Foo</p>\t\t\t\tgraveyard: <p></p>\n\t//\n\t// SplitOperation: root [ 0, 3 ] using graveyard [ 0 ] (howMany = 0)\n\t// MergeOperation: graveyard [ 0, 0 ] -> root [ 0, 3 ] (howMany = 0)\n\t//\n\t// Since split operation moves the graveyard node back to the root, the merge operation source position changes.\n\t// We would like to merge from the empty <p> to the \"Foo\" <p>:\n\t//\n\t// root: <p>Foo</p><p></p>\t\t\tgraveyard:\n\t//\n\t// MergeOperation#sourcePosition = root [ 1, 0 ]\n\t//\n\t// If `targetPosition` is transformed, it would become root [ 1, 0 ] as well. It has to be kept as it was.\n\t//\n\t// Third exception is connected with relations. If this happens during undo and we have explicit information\n\t// that target position has not been affected by the operation which is undone by this split then this split should\n\t// not move the target position either.\n\t//\n\tif ( a.targetPosition.isEqual( b.splitPosition ) ) {\n\t\tconst mergeInside = b.howMany != 0;\n\t\tconst mergeSplittingElement = b.graveyardPosition && a.deletionPosition.isEqual( b.graveyardPosition );\n\n\t\tif ( mergeInside || mergeSplittingElement || context.abRelation == 'mergeTargetNotMoved' ) {\n\t\t\ta.sourcePosition = a.sourcePosition._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// Case 2:\n\t//\n\t// Merge source is at the same position as split position. This sometimes happen, mostly during undo.\n\t// The decision here is mostly to choose whether merge source position should stay where it is (so it will be at the end of the\n\t// split element) or should be move to the beginning of the new element.\n\t//\n\tif ( a.sourcePosition.isEqual( b.splitPosition ) ) {\n\t\t// Use context to check if `SplitOperation` is not undoing a merge operation, that didn't change the `a` operation.\n\t\t// This scenario happens the undone merge operation moved nodes at the source position of `a` operation.\n\t\t// In that case `a` operation source position should stay where it is.\n\t\tif ( context.abRelation == 'mergeSourceNotMoved' ) {\n\t\t\ta.howMany = 0;\n\t\t\ta.targetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\n\t\t// This merge operation might have been earlier transformed by a merge operation which both merged the same element.\n\t\t// See that case in `MergeOperation` x `MergeOperation` transformation. In that scenario, if the merge operation has been undone,\n\t\t// the special case is not applied.\n\t\t//\n\t\t// Now, the merge operation is transformed by the split which has undone that previous merge operation.\n\t\t// So now we are fixing situation which was skipped in `MergeOperation` x `MergeOperation` case.\n\t\t//\n\t\tif ( context.abRelation == 'mergeSameElement' || a.sourcePosition.offset > 0 ) {\n\t\t\ta.sourcePosition = b.moveTargetPosition.clone();\n\t\t\ta.targetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.sourcePosition.hasSameParentAs( b.splitPosition ) ) {\n\t\ta.howMany = b.splitPosition.offset;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedBySplitOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( MoveOperation, InsertOperation, ( a, b ) => {\n\tconst moveRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\tconst transformed = moveRange._getTransformedByInsertOperation( b, false )[ 0 ];\n\n\ta.sourcePosition = transformed.start;\n\ta.howMany = transformed.end.offset - transformed.start.offset;\n\n\t// See `InsertOperation` x `MoveOperation` transformation for details on this case.\n\t//\n\t// In summary, both operations point to the same place, so the order of nodes needs to be decided.\n\t// `MoveOperation` is considered weaker, so it is always transformed, unless there was a certain relation\n\t// between operations.\n\t//\n\tif ( !a.targetPosition.isEqual( b.position ) ) {\n\t\ta.targetPosition = a.targetPosition._getTransformedByInsertOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MoveOperation, MoveOperation, ( a, b, context ) => {\n\t//\n\t// Setting and evaluating some variables that will be used in special cases and default algorithm.\n\t//\n\t// Create ranges from `MoveOperations` properties.\n\tconst rangeA = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\tconst rangeB = Range._createFromPositionAndShift( b.sourcePosition, b.howMany );\n\n\t// Assign `context.aIsStrong` to a different variable, because the value may change during execution of\n\t// this algorithm and we do not want to override original `context.aIsStrong` that will be used in later transformations.\n\tlet aIsStrong = context.aIsStrong;\n\n\t// This will be used to decide the order of nodes if both operations target at the same position.\n\t// By default, use strong/weak operation mechanism.\n\tlet insertBefore = !context.aIsStrong;\n\n\t// If the relation is set, then use it to decide nodes order.\n\tif ( context.abRelation == 'insertBefore' || context.baRelation == 'insertAfter' ) {\n\t\tinsertBefore = true;\n\t} else if ( context.abRelation == 'insertAfter' || context.baRelation == 'insertBefore' ) {\n\t\tinsertBefore = false;\n\t}\n\n\t// `a.targetPosition` could be affected by the `b` operation. We will transform it.\n\tlet newTargetPosition;\n\n\tif ( a.targetPosition.isEqual( b.targetPosition ) && insertBefore ) {\n\t\tnewTargetPosition = a.targetPosition._getTransformedByDeletion(\n\t\t\tb.sourcePosition,\n\t\t\tb.howMany\n\t\t);\n\t} else {\n\t\tnewTargetPosition = a.targetPosition._getTransformedByMove(\n\t\t\tb.sourcePosition,\n\t\t\tb.targetPosition,\n\t\t\tb.howMany\n\t\t);\n\t}\n\n\t//\n\t// Special case #1 + mirror.\n\t//\n\t// Special case when both move operations' target positions are inside nodes that are\n\t// being moved by the other move operation. So in other words, we move ranges into inside of each other.\n\t// This case can't be solved reasonably (on the other hand, it should not happen often).\n\tif ( _moveTargetIntoMovedRange( a, b ) && _moveTargetIntoMovedRange( b, a ) ) {\n\t\t// Instead of transforming operation, we return a reverse of the operation that we transform by.\n\t\t// So when the results of this \"transformation\" will be applied, `b` MoveOperation will get reversed.\n\t\treturn [ b.getReversed() ];\n\t}\n\t//\n\t// End of special case #1.\n\t//\n\n\t//\n\t// Special case #2.\n\t//\n\t// Check if `b` operation targets inside `rangeA`.\n\tconst bTargetsToA = rangeA.containsPosition( b.targetPosition );\n\n\t// If `b` targets to `rangeA` and `rangeA` contains `rangeB`, `b` operation has no influence on `a` operation.\n\t// You might say that operation `b` is captured inside operation `a`.\n\tif ( bTargetsToA && rangeA.containsRange( rangeB, true ) ) {\n\t\t// There is a mini-special case here, where `rangeB` is on other level than `rangeA`. That's why\n\t\t// we need to transform `a` operation anyway.\n\t\t( rangeA as any ).start = rangeA.start._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\t\t( rangeA as any ).end = rangeA.end._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\n\t\treturn _makeMoveOperationsFromRanges( [ rangeA ], newTargetPosition! );\n\t}\n\n\t//\n\t// Special case #2 mirror.\n\t//\n\tconst aTargetsToB = rangeB.containsPosition( a.targetPosition );\n\n\tif ( aTargetsToB && rangeB.containsRange( rangeA, true ) ) {\n\t\t// `a` operation is \"moved together\" with `b` operation.\n\t\t// Here, just move `rangeA` \"inside\" `rangeB`.\n\t\t( rangeA as any ).start = rangeA.start._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\t\t( rangeA as any ).end = rangeA.end._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\n\t\treturn _makeMoveOperationsFromRanges( [ rangeA ], newTargetPosition! );\n\t}\n\t//\n\t// End of special case #2.\n\t//\n\n\t//\n\t// Special case #3 + mirror.\n\t//\n\t// `rangeA` has a node which is an ancestor of `rangeB`. In other words, `rangeB` is inside `rangeA`\n\t// but not on the same tree level. In such case ranges have common part but we have to treat it\n\t// differently, because in such case those ranges are not really conflicting and should be treated like\n\t// two separate ranges. Also we have to discard two difference parts.\n\tconst aCompB = compareArrays( a.sourcePosition.getParentPath(), b.sourcePosition.getParentPath() );\n\n\tif ( aCompB == 'prefix' || aCompB == 'extension' ) {\n\t\t// Transform `rangeA` by `b` operation and make operation out of it, and that's all.\n\t\t// Note that this is a simplified version of default case, but here we treat the common part (whole `rangeA`)\n\t\t// like a one difference part.\n\t\t( rangeA as any ).start = rangeA.start._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\t\t( rangeA as any ).end = rangeA.end._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\n\t\treturn _makeMoveOperationsFromRanges( [ rangeA ], newTargetPosition! );\n\t}\n\t//\n\t// End of special case #3.\n\t//\n\n\t//\n\t// Default case - ranges are on the same level or are not connected with each other.\n\t//\n\t// Modifier for default case.\n\t// Modifies `aIsStrong` flag in certain conditions.\n\t//\n\t// If only one of operations is a remove operation, we force remove operation to be the \"stronger\" one\n\t// to provide more expected results.\n\tif ( a.type == 'remove' && b.type != 'remove' && !context.aWasUndone && !context.forceWeakRemove ) {\n\t\taIsStrong = true;\n\t} else if ( a.type != 'remove' && b.type == 'remove' && !context.bWasUndone && !context.forceWeakRemove ) {\n\t\taIsStrong = false;\n\t}\n\n\t// Handle operation's source ranges - check how `rangeA` is affected by `b` operation.\n\t// This will aggregate transformed ranges.\n\tconst ranges = [];\n\n\t// Get the \"difference part\" of `a` operation source range.\n\t// This is an array with one or two ranges. Two ranges if `rangeB` is inside `rangeA`.\n\tconst difference = rangeA.getDifference( rangeB );\n\n\tfor ( const range of difference ) {\n\t\t// Transform those ranges by `b` operation. For example if `b` moved range from before those ranges, fix those ranges.\n\t\t( range as any ).start = range.start._getTransformedByDeletion( b.sourcePosition, b.howMany );\n\t\t( range as any ).end = range.end._getTransformedByDeletion( b.sourcePosition, b.howMany );\n\n\t\t// If `b` operation targets into `rangeA` on the same level, spread `rangeA` into two ranges.\n\t\tconst shouldSpread = compareArrays( range.start.getParentPath(), b.getMovedRangeStart().getParentPath() ) == 'same';\n\t\tconst newRanges = range._getTransformedByInsertion( b.getMovedRangeStart(), b.howMany, shouldSpread );\n\n\t\tranges.push( ...newRanges );\n\t}\n\n\t// Then, we have to manage the \"common part\" of both move ranges.\n\tconst common = rangeA.getIntersection( rangeB );\n\n\tif ( common !== null && aIsStrong ) {\n\t\t// Calculate the new position of that part of original range.\n\t\t( common as any ).start = common.start._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\t\t( common as any ).end = common.end._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\n\t\t// Take care of proper range order.\n\t\t//\n\t\t// Put `common` at appropriate place. Keep in mind that we are interested in original order.\n\t\t// Basically there are only three cases: there is zero, one or two difference ranges.\n\t\t//\n\t\t// If there is zero difference ranges, just push `common` in the array.\n\t\tif ( ranges.length === 0 ) {\n\t\t\tranges.push( common );\n\t\t}\n\t\t// If there is one difference range, we need to check whether common part was before it or after it.\n\t\telse if ( ranges.length == 1 ) {\n\t\t\tif ( rangeB.start.isBefore( rangeA.start ) || rangeB.start.isEqual( rangeA.start ) ) {\n\t\t\t\tranges.unshift( common );\n\t\t\t} else {\n\t\t\t\tranges.push( common );\n\t\t\t}\n\t\t}\n\t\t// If there are more ranges (which means two), put common part between them. This is the only scenario\n\t\t// where there could be two difference ranges so we don't have to make any comparisons.\n\t\telse {\n\t\t\tranges.splice( 1, 0, common );\n\t\t}\n\t}\n\n\tif ( ranges.length === 0 ) {\n\t\t// If there are no \"source ranges\", nothing should be changed.\n\t\t// Note that this can happen only if `aIsStrong == false` and `rangeA.isEqual( rangeB )`.\n\t\treturn [ new NoOperation( a.baseVersion ) ];\n\t}\n\n\treturn _makeMoveOperationsFromRanges( ranges, newTargetPosition! );\n} );\n\nsetTransformation( MoveOperation, SplitOperation, ( a, b, context ) => {\n\tlet newTargetPosition = a.targetPosition.clone();\n\n\t// Do not transform if target position is same as split insertion position and this split comes from undo.\n\t// This should be done on relations but it is too much work for now as it would require relations working in collaboration.\n\t// We need to make a decision how we will resolve such conflict and this is less harmful way.\n\tif ( !a.targetPosition.isEqual( b.insertionPosition ) || !b.graveyardPosition || context.abRelation == 'moveTargetAfter' ) {\n\t\tnewTargetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\t}\n\n\t// Case 1:\n\t//\n\t// Last element in the moved range got split.\n\t//\n\t// In this case the default range transformation will not work correctly as the element created by\n\t// split operation would be outside the range. The range to move needs to be fixed manually.\n\t//\n\tconst moveRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\n\tif ( moveRange.end.isEqual( b.insertionPosition ) ) {\n\t\t// Do it only if this is a \"natural\" split, not a one that comes from undo.\n\t\t// If this is undo split, only `targetPosition` needs to be changed (if the move is a remove).\n\t\tif ( !b.graveyardPosition ) {\n\t\t\ta.howMany++;\n\t\t}\n\n\t\ta.targetPosition = newTargetPosition;\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 2:\n\t//\n\t// Split happened between the moved nodes. In this case two ranges to move need to be generated.\n\t//\n\t// Characters `ozba` are moved to the end of paragraph `Xyz` but split happened.\n\t// <p>F[oz|ba]r</p><p>Xyz</p>\n\t//\n\t// After split:\n\t// <p>F[oz</p><p>ba]r</p><p>Xyz</p>\n\t//\n\t// Correct ranges:\n\t// <p>F[oz]</p><p>[ba]r</p><p>Xyz</p>\n\t//\n\t// After move:\n\t// <p>F</p><p>r</p><p>Xyzozba</p>\n\t//\n\tif ( moveRange.start.hasSameParentAs( b.splitPosition ) && moveRange.containsPosition( b.splitPosition ) ) {\n\t\tlet rightRange = new Range( b.splitPosition, moveRange.end );\n\t\trightRange = rightRange._getTransformedBySplitOperation( b );\n\n\t\tconst ranges = [\n\t\t\tnew Range( moveRange.start, b.splitPosition ),\n\t\t\trightRange\n\t\t];\n\n\t\treturn _makeMoveOperationsFromRanges( ranges, newTargetPosition );\n\t}\n\n\t// Case 3:\n\t//\n\t// Move operation targets at the split position. We need to decide if the nodes should be inserted\n\t// at the end of the split element or at the beginning of the new element.\n\t//\n\tif ( a.targetPosition.isEqual( b.splitPosition ) && context.abRelation == 'insertAtSource' ) {\n\t\tnewTargetPosition = b.moveTargetPosition;\n\t}\n\n\t// Case 4:\n\t//\n\t// Move operation targets just after the split element. We need to decide if the nodes should be inserted\n\t// between two parts of split element, or after the new element.\n\t//\n\t// Split at `|`, while move operation moves `<p>Xyz</p>` and targets at `^`:\n\t// <p>Foo|bar</p>^<p>baz</p>\n\t// <p>Foo</p>^<p>bar</p><p>baz</p> or <p>Foo</p><p>bar</p>^<p>baz</p>?\n\t//\n\t// If there is no contextual information between operations (for example, they come from collaborative\n\t// editing), we don't want to put some unrelated content (move) between parts of related content (split parts).\n\t// However, if the split is from undo, in the past, the moved content might be targeting between the\n\t// split parts, meaning that was exactly user's intention:\n\t//\n\t// <p>Foo</p>^<p>bar</p>\t\t<--- original situation, in \"past\".\n\t// <p>Foobar</p>^\t\t\t\t<--- after merge target position is transformed.\n\t// <p>Foo|bar</p>^\t\t\t\t<--- then the merge is undone, and split happens, which leads us to current situation.\n\t//\n\t// In this case it is pretty clear that the intention was to put new paragraph between those nodes,\n\t// so we need to transform accordingly. We can detect this scenario thanks to relations.\n\t//\n\tif ( a.targetPosition.isEqual( b.insertionPosition ) && context.abRelation == 'insertBetween' ) {\n\t\tnewTargetPosition = a.targetPosition;\n\t}\n\n\t// The default case.\n\t//\n\tconst transformed = moveRange._getTransformedBySplitOperation( b );\n\tconst ranges = [ transformed ];\n\n\t// Case 5:\n\t//\n\t// Moved range contains graveyard element used by split operation. Add extra move operation to the result.\n\t//\n\tif ( b.graveyardPosition ) {\n\t\tconst movesGraveyardElement = moveRange.start.isEqual( b.graveyardPosition ) || moveRange.containsPosition( b.graveyardPosition );\n\n\t\tif ( a.howMany > 1 && movesGraveyardElement && !context.aWasUndone ) {\n\t\t\tranges.push( Range._createFromPositionAndShift( b.insertionPosition, 1 ) );\n\t\t}\n\t}\n\n\treturn _makeMoveOperationsFromRanges( ranges, newTargetPosition );\n} );\n\nsetTransformation( MoveOperation, MergeOperation, ( a, b, context ) => {\n\tconst movedRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\n\tif ( b.deletionPosition.hasSameParentAs( a.sourcePosition ) && movedRange.containsPosition( b.sourcePosition ) ) {\n\t\tif ( a.type == 'remove' && !context.forceWeakRemove ) {\n\t\t\t// Case 1:\n\t\t\t//\n\t\t\t// The element to remove got merged.\n\t\t\t//\n\t\t\t// Merge operation does support merging elements which are not siblings. So it would not be a problem\n\t\t\t// from technical point of view. However, if the element was removed, the intention of the user\n\t\t\t// deleting it was to have it all deleted. From user experience point of view, moving back the\n\t\t\t// removed nodes might be unexpected. This means that in this scenario we will reverse merging and remove the element.\n\t\t\t//\n\t\t\tif ( !context.aWasUndone ) {\n\t\t\t\tconst results = [];\n\n\t\t\t\tlet gyMoveSource = b.graveyardPosition.clone();\n\t\t\t\tlet splitNodesMoveSource = b.targetPosition._getTransformedByMergeOperation( b );\n\n\t\t\t\tif ( a.howMany > 1 ) {\n\t\t\t\t\tresults.push( new MoveOperation( a.sourcePosition, a.howMany - 1, a.targetPosition, 0 ) );\n\n\t\t\t\t\tgyMoveSource = gyMoveSource._getTransformedByMove( a.sourcePosition, a.targetPosition, a.howMany - 1 );\n\t\t\t\t\tsplitNodesMoveSource = splitNodesMoveSource._getTransformedByMove( a.sourcePosition, a.targetPosition, a.howMany - 1 );\n\t\t\t\t}\n\n\t\t\t\tconst gyMoveTarget = b.deletionPosition._getCombined( a.sourcePosition, a.targetPosition );\n\t\t\t\tconst gyMove = new MoveOperation( gyMoveSource, 1, gyMoveTarget, 0 );\n\n\t\t\t\tconst splitNodesMoveTargetPath = gyMove.getMovedRangeStart().path.slice();\n\t\t\t\tsplitNodesMoveTargetPath.push( 0 );\n\n\t\t\t\tconst splitNodesMoveTarget = new Position( gyMove.targetPosition.root, splitNodesMoveTargetPath );\n\t\t\t\tsplitNodesMoveSource = splitNodesMoveSource._getTransformedByMove( gyMoveSource, gyMoveTarget, 1 );\n\t\t\t\tconst splitNodesMove = new MoveOperation( splitNodesMoveSource, b.howMany, splitNodesMoveTarget, 0 );\n\n\t\t\t\tresults.push( gyMove );\n\t\t\t\tresults.push( splitNodesMove );\n\n\t\t\t\treturn results;\n\t\t\t}\n\t\t} else {\n\t\t\t// Case 2:\n\t\t\t//\n\t\t\t// The element to move got merged and it was the only element to move.\n\t\t\t// In this case just don't do anything, leave the node in the graveyard. Without special case\n\t\t\t// it would be a move operation that moves 0 nodes, so maybe it is better just to return no-op.\n\t\t\t//\n\t\t\tif ( a.howMany == 1 ) {\n\t\t\t\tif ( !context.bWasUndone ) {\n\t\t\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t\t\t} else {\n\t\t\t\t\ta.sourcePosition = b.graveyardPosition.clone();\n\t\t\t\t\ta.targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\t\t\t\t\treturn [ a ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tconst moveRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\tconst transformed = moveRange._getTransformedByMergeOperation( b );\n\n\ta.sourcePosition = transformed.start;\n\ta.howMany = transformed.end.offset - transformed.start.offset;\n\ta.targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( RenameOperation, InsertOperation, ( a, b ) => {\n\ta.position = a.position._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, MergeOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// Element to rename got merged, so it was moved to `b.graveyardPosition`.\n\t//\n\tif ( a.position.isEqual( b.deletionPosition ) ) {\n\t\ta.position = b.graveyardPosition.clone();\n\t\ta.position.stickiness = 'toNext';\n\n\t\treturn [ a ];\n\t}\n\n\ta.position = a.position._getTransformedByMergeOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, MoveOperation, ( a, b ) => {\n\ta.position = a.position._getTransformedByMoveOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, RenameOperation, ( a, b, context ) => {\n\tif ( a.position.isEqual( b.position ) ) {\n\t\tif ( context.aIsStrong ) {\n\t\t\ta.oldName = b.newName;\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, SplitOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// The element to rename has been split. In this case, the new element should be also renamed.\n\t//\n\t// User decides to change the paragraph to a list item:\n\t// <paragraph>Foobar</paragraph>\n\t//\n\t// However, in meantime, split happens:\n\t// <paragraph>Foo</paragraph><paragraph>bar</paragraph>\n\t//\n\t// As a result, rename both elements:\n\t// <listItem>Foo</listItem><listItem>bar</listItem>\n\t//\n\tconst renamePath = a.position.path;\n\tconst splitPath = b.splitPosition.getParentPath();\n\n\tif ( compareArrays( renamePath, splitPath ) == 'same' && !b.graveyardPosition ) {\n\t\tconst extraRename = new RenameOperation( a.position.getShiftedBy( 1 ), a.oldName, a.newName, 0 );\n\n\t\treturn [ a, extraRename ];\n\t}\n\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( RootAttributeOperation, RootAttributeOperation, ( a, b, context ) => {\n\tif ( a.root === b.root && a.key === b.key ) {\n\t\tif ( !context.aIsStrong || a.newValue === b.newValue ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t} else {\n\t\t\ta.oldValue = b.newValue;\n\t\t}\n\t}\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( SplitOperation, InsertOperation, ( a, b ) => {\n\t// The default case.\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.position ) && a.splitPosition.offset < b.position.offset ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.splitPosition = a.splitPosition._getTransformedByInsertOperation( b );\n\ta.insertionPosition = a.insertionPosition._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( SplitOperation, MergeOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Split element got merged. If two different elements were merged, clients will have different content.\n\t//\n\t// Example. Merge at `{}`, split at `[]`:\n\t// <heading>Foo</heading>{}<paragraph>B[]ar</paragraph>\n\t//\n\t// On merge side it will look like this:\n\t// <heading>FooB[]ar</heading>\n\t// <heading>FooB</heading><heading>ar</heading>\n\t//\n\t// On split side it will look like this:\n\t// <heading>Foo</heading>{}<paragraph>B</paragraph><paragraph>ar</paragraph>\n\t// <heading>FooB</heading><paragraph>ar</paragraph>\n\t//\n\t// Clearly, the second element is different for both clients.\n\t//\n\t// We could use the removed merge element from graveyard as a split element but then clients would have a different\n\t// model state (in graveyard), because the split side client would still have an element in graveyard (removed by merge).\n\t//\n\t// To overcome this, in `SplitOperation` x `MergeOperation` transformation we will add additional `SplitOperation`\n\t// in the graveyard, which will actually clone the merged-and-deleted element. Then, that cloned element will be\n\t// used for splitting. Example below.\n\t//\n\t// Original state:\n\t// <heading>Foo</heading>{}<paragraph>B[]ar</paragraph>\n\t//\n\t// Merge side client:\n\t//\n\t// After merge:\n\t// <heading>FooB[]ar</heading>                                 graveyard: <paragraph></paragraph>\n\t//\n\t// Extra split:\n\t// <heading>FooB[]ar</heading>                                 graveyard: <paragraph></paragraph><paragraph></paragraph>\n\t//\n\t// Use the \"cloned\" element from graveyard:\n\t// <heading>FooB</heading><paragraph>ar</paragraph>            graveyard: <paragraph></paragraph>\n\t//\n\t// Split side client:\n\t//\n\t// After split:\n\t// <heading>Foo</heading>{}<paragraph>B</paragraph><paragraph>ar</paragraph>\n\t//\n\t// After merge:\n\t// <heading>FooB</heading><paragraph>ar</paragraph>            graveyard: <paragraph></paragraph>\n\t//\n\t// This special case scenario only applies if the original split operation clones the split element.\n\t// If the original split operation has `graveyardPosition` set, it all doesn't have sense because split operation\n\t// knows exactly which element it should use. So there would be no original problem with different contents.\n\t//\n\t// Additionally, the special case applies only if the merge wasn't already undone.\n\t//\n\tif ( !a.graveyardPosition && !context.bWasUndone && a.splitPosition.hasSameParentAs( b.sourcePosition ) ) {\n\t\tconst splitPath = b.graveyardPosition.path.slice();\n\t\tsplitPath.push( 0 );\n\n\t\tconst splitPosition = new Position( b.graveyardPosition.root, splitPath );\n\t\tconst insertionPosition = SplitOperation.getInsertionPosition( new Position( b.graveyardPosition.root, splitPath ) );\n\n\t\tconst additionalSplit = new SplitOperation( splitPosition, 0, insertionPosition, null, 0 );\n\n\t\ta.splitPosition = a.splitPosition._getTransformedByMergeOperation( b );\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\t\ta.graveyardPosition = additionalSplit.insertionPosition.clone();\n\t\ta.graveyardPosition.stickiness = 'toNext';\n\n\t\treturn [ additionalSplit, a ];\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.deletionPosition ) && !a.splitPosition.isAfter( b.deletionPosition ) ) {\n\t\ta.howMany--;\n\t}\n\n\tif ( a.splitPosition.hasSameParentAs( b.targetPosition ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.splitPosition = a.splitPosition._getTransformedByMergeOperation( b );\n\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\tif ( a.graveyardPosition ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMergeOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( SplitOperation, MoveOperation, ( a, b, context ) => {\n\tconst rangeToMove = Range._createFromPositionAndShift( b.sourcePosition, b.howMany );\n\n\tif ( a.graveyardPosition ) {\n\t\t// Case 1:\n\t\t//\n\t\t// Split operation graveyard node was moved. In this case move operation is stronger. Since graveyard element\n\t\t// is already moved to the correct position, we need to only move the nodes after the split position.\n\t\t// This will be done by `MoveOperation` instead of `SplitOperation`.\n\t\t//\n\t\tconst gyElementMoved = rangeToMove.start.isEqual( a.graveyardPosition ) || rangeToMove.containsPosition( a.graveyardPosition );\n\n\t\tif ( !context.bWasUndone && gyElementMoved ) {\n\t\t\tconst sourcePosition = a.splitPosition._getTransformedByMoveOperation( b );\n\n\t\t\tconst newParentPosition = a.graveyardPosition._getTransformedByMoveOperation( b );\n\t\t\tconst newTargetPath = newParentPosition.path.slice();\n\t\t\tnewTargetPath.push( 0 );\n\n\t\t\tconst newTargetPosition = new Position( newParentPosition.root, newTargetPath );\n\t\t\tconst moveOp = new MoveOperation( sourcePosition, a.howMany, newTargetPosition, 0 );\n\n\t\t\treturn [ moveOp ];\n\t\t}\n\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMoveOperation( b );\n\t}\n\n\t// Case 2:\n\t//\n\t// Split is at a position where nodes were moved.\n\t//\n\t// This is a scenario described in `MoveOperation` x `SplitOperation` transformation but from the\n\t// \"split operation point of view\".\n\t//\n\tconst splitAtTarget = a.splitPosition.isEqual( b.targetPosition );\n\n\tif ( splitAtTarget && ( context.baRelation == 'insertAtSource' || context.abRelation == 'splitBefore' ) ) {\n\t\ta.howMany += b.howMany;\n\t\ta.splitPosition = a.splitPosition._getTransformedByDeletion( b.sourcePosition, b.howMany )!;\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\t\treturn [ a ];\n\t}\n\n\tif ( splitAtTarget && context.abRelation && context.abRelation.howMany ) {\n\t\tconst { howMany, offset } = context.abRelation;\n\n\t\ta.howMany += howMany;\n\t\ta.splitPosition = a.splitPosition.getShiftedBy( offset );\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 3:\n\t//\n\t// If the split position is inside the moved range, we need to shift the split position to a proper place.\n\t// The position cannot be moved together with moved range because that would result in splitting of an incorrect element.\n\t//\n\t// Characters `bc` should be moved to the second paragraph while split position is between them:\n\t// <paragraph>A[b|c]d</paragraph><paragraph>Xyz</paragraph>\n\t//\n\t// After move, new split position is incorrect:\n\t// <paragraph>Ad</paragraph><paragraph>Xb|cyz</paragraph>\n\t//\n\t// Correct split position:\n\t// <paragraph>A|d</paragraph><paragraph>Xbcyz</paragraph>\n\t//\n\t// After split:\n\t// <paragraph>A</paragraph><paragraph>d</paragraph><paragraph>Xbcyz</paragraph>\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.sourcePosition ) && rangeToMove.containsPosition( a.splitPosition ) ) {\n\t\tconst howManyRemoved = b.howMany - ( a.splitPosition.offset - b.sourcePosition.offset );\n\t\ta.howMany -= howManyRemoved;\n\n\t\tif ( a.splitPosition.hasSameParentAs( b.targetPosition ) && a.splitPosition.offset < b.targetPosition.offset ) {\n\t\t\ta.howMany += b.howMany;\n\t\t}\n\n\t\ta.splitPosition = b.sourcePosition.clone();\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\t\treturn [ a ];\n\t}\n\n\t// The default case.\n\t// Don't change `howMany` if move operation does not really move anything.\n\t//\n\tif ( !b.sourcePosition.isEqual( b.targetPosition ) ) {\n\t\tif ( a.splitPosition.hasSameParentAs( b.sourcePosition ) && a.splitPosition.offset <= b.sourcePosition.offset ) {\n\t\t\ta.howMany -= b.howMany;\n\t\t}\n\n\t\tif ( a.splitPosition.hasSameParentAs( b.targetPosition ) && a.splitPosition.offset < b.targetPosition.offset ) {\n\t\t\ta.howMany += b.howMany;\n\t\t}\n\t}\n\n\t// Change position stickiness to force a correct transformation.\n\ta.splitPosition.stickiness = 'toNone';\n\ta.splitPosition = a.splitPosition._getTransformedByMoveOperation( b );\n\ta.splitPosition.stickiness = 'toNext';\n\n\tif ( a.graveyardPosition ) {\n\t\ta.insertionPosition = a.insertionPosition._getTransformedByMoveOperation( b );\n\t} else {\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( SplitOperation, SplitOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Split at the same position.\n\t//\n\t// If there already was a split at the same position as in `a` operation, it means that the intention\n\t// conveyed by `a` operation has already been fulfilled and `a` should not do anything (to avoid double split).\n\t//\n\t// However, there is a difference if these are new splits or splits created by undo. These have different\n\t// intentions. Also splits moving back different elements from graveyard have different intentions. They\n\t// are just different operations.\n\t//\n\t// So we cancel split operation only if it was really identical.\n\t//\n\t// Also, there is additional case, where split operations aren't identical and should not be cancelled, however the\n\t// default transformation is incorrect too.\n\t//\n\tif ( a.splitPosition.isEqual( b.splitPosition ) ) {\n\t\tif ( !a.graveyardPosition && !b.graveyardPosition ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\n\t\tif ( a.graveyardPosition && b.graveyardPosition && a.graveyardPosition.isEqual( b.graveyardPosition ) ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\n\t\t// Use context to know that the `a.splitPosition` should stay where it is.\n\t\t// This happens during undo when first a merge operation moved nodes to `a.splitPosition` and now `b` operation undoes that merge.\n\t\tif ( context.abRelation == 'splitBefore' ) {\n\t\t\t// Since split is at the same position, there are no nodes left to split.\n\t\t\ta.howMany = 0;\n\n\t\t\t// Note: there was `if ( a.graveyardPosition )` here but it was uncovered in tests and I couldn't find any scenarios for now.\n\t\t\t// That would have to be a `SplitOperation` that didn't come from undo but is transformed by operations that were undone.\n\t\t\t// It could happen if `context` is enabled in collaboration.\n\t\t\ta.graveyardPosition = a.graveyardPosition!._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// Case 2:\n\t//\n\t// Same node is using to split different elements. This happens in undo when previously same element was merged to\n\t// two different elements. This is described in `MergeOperation` x `MergeOperation` transformation.\n\t//\n\t// In this case we will follow the same logic. We will assume that `insertionPosition` is same for both\n\t// split operations. This might not always be true but in the real cases that were experienced it was. After all,\n\t// if these splits are reverses of merge operations that were merging the same element, then the `insertionPosition`\n\t// should be same for both of those splits.\n\t//\n\t// Again, we will decide which operation is stronger by checking if split happens in graveyard or in non-graveyard root.\n\t//\n\tif ( a.graveyardPosition && b.graveyardPosition && a.graveyardPosition.isEqual( b.graveyardPosition ) ) {\n\t\tconst aInGraveyard = a.splitPosition.root.rootName == '$graveyard';\n\t\tconst bInGraveyard = b.splitPosition.root.rootName == '$graveyard';\n\n\t\t// If `aIsWeak` it means that `a` points to graveyard while `b` doesn't. Don't move nodes then.\n\t\tconst aIsWeak = aInGraveyard && !bInGraveyard;\n\n\t\t// If `bIsWeak` it means that `b` points to graveyard while `a` doesn't. Force moving nodes then.\n\t\tconst bIsWeak = bInGraveyard && !aInGraveyard;\n\n\t\t// Force move if `b` is weak or neither operation is weak but `a` is stronger through `context.aIsStrong`.\n\t\tconst forceMove = bIsWeak || ( !aIsWeak && context.aIsStrong );\n\n\t\tif ( forceMove ) {\n\t\t\tconst result = [];\n\n\t\t\t// First we need to move any nodes split by `b` back to where they were.\n\t\t\t// Do it only if `b` actually moved something.\n\t\t\tif ( b.howMany ) {\n\t\t\t\tresult.push( new MoveOperation( b.moveTargetPosition, b.howMany, b.splitPosition, 0 ) );\n\t\t\t}\n\n\t\t\t// Then we need to move nodes from `a` split position to their new element.\n\t\t\t// Do it only if `a` actually should move something.\n\t\t\tif ( a.howMany ) {\n\t\t\t\tresult.push( new MoveOperation( a.splitPosition, a.howMany, a.moveTargetPosition, 0 ) );\n\t\t\t}\n\n\t\t\treturn result;\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\tif ( a.graveyardPosition ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedBySplitOperation( b );\n\t}\n\n\t// Case 3:\n\t//\n\t// Position where operation `b` inserted a new node after split is the same as the operation `a` split position.\n\t// As in similar cases, there is ambiguity if the split should be before the new node (created by `b`) or after.\n\t//\n\tif ( a.splitPosition.isEqual( b.insertionPosition ) && context.abRelation == 'splitBefore' ) {\n\t\ta.howMany++;\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 4:\n\t//\n\t// This is a mirror to the case 2. above.\n\t//\n\tif ( b.splitPosition.isEqual( a.insertionPosition ) && context.baRelation == 'splitBefore' ) {\n\t\tconst newPositionPath = b.insertionPosition.path.slice();\n\t\tnewPositionPath.push( 0 );\n\n\t\tconst newPosition = new Position( b.insertionPosition.root, newPositionPath );\n\t\tconst moveOp = new MoveOperation( a.insertionPosition, 1, newPosition, 0 );\n\n\t\treturn [ a, moveOp ];\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.splitPosition ) && a.splitPosition.offset < b.splitPosition.offset ) {\n\t\ta.howMany -= b.howMany;\n\t}\n\n\ta.splitPosition = a.splitPosition._getTransformedBySplitOperation( b );\n\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\treturn [ a ];\n} );\n\n// Checks whether `MoveOperation` `targetPosition` is inside a node from the moved range of the other `MoveOperation`.\n//\n// @private\n// @param {module:engine/model/operation/moveoperation~MoveOperation} a\n// @param {module:engine/model/operation/moveoperation~MoveOperation} b\n// @returns {Boolean}\nfunction _moveTargetIntoMovedRange( a: MoveOperation, b: MoveOperation ) {\n\treturn a.targetPosition._getTransformedByDeletion( b.sourcePosition, b.howMany ) === null;\n}\n\n// Helper function for `MoveOperation` x `MoveOperation` transformation. Converts given ranges and target position to\n// move operations and returns them.\n//\n// Ranges and target position will be transformed on-the-fly when generating operations.\n//\n// Given `ranges` should be in the order of how they were in the original transformed operation.\n//\n// Given `targetPosition` is the target position of the first range from `ranges`.\n//\n// @private\n// @param {Array.<module:engine/model/range~Range>} ranges\n// @param {module:engine/model/position~Position} targetPosition\n// @returns {Array.<module:engine/model/operation/moveoperation~MoveOperation>}\nfunction _makeMoveOperationsFromRanges( ranges: Array<Range>, targetPosition: Position ) {\n\t// At this moment we have some ranges and a target position, to which those ranges should be moved.\n\t// Order in `ranges` array is the go-to order of after transformation.\n\t//\n\t// We are almost done. We have `ranges` and `targetPosition` to make operations from.\n\t// Unfortunately, those operations may affect each other. Precisely, first operation after move\n\t// may affect source range and target position of second and third operation. Same with second\n\t// operation affecting third.\n\t//\n\t// We need to fix those source ranges and target positions once again, before converting `ranges` to operations.\n\tconst operations = [];\n\n\t// Keep in mind that nothing will be transformed if there is just one range in `ranges`.\n\tfor ( let i = 0; i < ranges.length; i++ ) {\n\t\t// Create new operation out of a range and target position.\n\t\tconst range = ranges[ i ];\n\t\tconst op = new MoveOperation(\n\t\t\trange.start,\n\t\t\trange.end.offset - range.start.offset,\n\t\t\ttargetPosition,\n\t\t\t0\n\t\t);\n\n\t\toperations.push( op );\n\n\t\t// Transform other ranges by the generated operation.\n\t\tfor ( let j = i + 1; j < ranges.length; j++ ) {\n\t\t\t// All ranges in `ranges` array should be:\n\t\t\t//\n\t\t\t// * non-intersecting (these are part of original operation source range), and\n\t\t\t// * `targetPosition` does not target into them (opposite would mean that transformed operation targets \"inside itself\").\n\t\t\t//\n\t\t\t// This means that the transformation will be \"clean\" and always return one result.\n\t\t\tranges[ j ] = ranges[ j ]._getTransformedByMove( op.sourcePosition, op.targetPosition, op.howMany )[ 0 ];\n\t\t}\n\n\t\ttargetPosition = targetPosition._getTransformedByMove( op.sourcePosition, op.targetPosition, op.howMany );\n\t}\n\n\treturn operations;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/liveposition\n */\n\nimport Position, { type PositionStickiness } from './position';\n\nimport type { ModelApplyOperationEvent } from './model';\nimport type DocumentFragment from './documentfragment';\nimport type Item from './item';\nimport type Operation from './operation/operation';\nimport type RootElement from './rootelement';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * `LivePosition` is a type of {@link module:engine/model/position~Position Position}\n * that updates itself as {@link module:engine/model/document~Document document}\n * is changed through operations. It may be used as a bookmark.\n *\n * **Note:** Contrary to {@link module:engine/model/position~Position}, `LivePosition` works only in roots that are\n * {@link module:engine/model/rootelement~RootElement}.\n * If {@link module:engine/model/documentfragment~DocumentFragment} is passed, error will be thrown.\n *\n * **Note:** Be very careful when dealing with `LivePosition`. Each `LivePosition` instance bind events that might\n * have to be unbound.\n * Use {@link module:engine/model/liveposition~LivePosition#detach} whenever you don't need `LivePosition` anymore.\n *\n * @extends module:engine/model/position~Position\n */\nexport default class LivePosition extends EmitterMixin( Position ) {\n\tdeclare public readonly root: RootElement;\n\n\t/**\n\t * Creates a live position.\n\t *\n\t * @see module:engine/model/position~Position\n\t * @param {module:engine/model/rootelement~RootElement} root\n\t * @param {Array.<Number>} path\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness]\n\t */\n\tconstructor( root: RootElement, path: Array<number>, stickiness: PositionStickiness = 'toNone' ) {\n\t\tsuper( root, path, stickiness );\n\n\t\tif ( !this.root.is( 'rootElement' ) ) {\n\t\t\t/**\n\t\t\t * LivePosition's root has to be an instance of RootElement.\n\t\t\t *\n\t\t\t * @error model-liveposition-root-not-rootelement\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-liveposition-root-not-rootelement', root );\n\t\t}\n\n\t\tbindWithDocument.call( this );\n\t}\n\n\t/**\n\t * Unbinds all events previously bound by `LivePosition`. Use it whenever you don't need `LivePosition` instance\n\t * anymore (i.e. when leaving scope in which it was declared or before re-assigning variable that was\n\t * referring to it).\n\t */\n\tpublic detach(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/position~Position position instance}, which is equal to this live position.\n\t *\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic toPosition(): Position {\n\t\treturn new Position( this.root, this.path.slice(), this.stickiness );\n\t}\n\n\t/**\n\t * Creates a `LivePosition` instance that is equal to position.\n\t *\n\t * @param {module:engine/model/position~Position} position\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness]\n\t * @returns {module:engine/model/liveposition~LivePosition}\n\t */\n\tpublic static fromPosition( position: Position, stickiness: PositionStickiness ): LivePosition {\n\t\treturn new this( position.root as RootElement, position.path.slice(), stickiness ? stickiness : position.stickiness );\n\t}\n\n\t/**\n\t * @static\n\t * @internal\n\t * @protected\n\t * @method module:engine/model/liveposition~LivePosition._createAfter\n\t * @see module:engine/model/position~Position._createAfter\n\t * @param {module:engine/model/node~Node} node\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone']\n\t * @returns {module:engine/model/liveposition~LivePosition}\n\t */\n\n\tdeclare public static readonly _createAfter: ( item: Item | DocumentFragment, stickiness?: PositionStickiness ) => LivePosition;\n\n\t/**\n\t * @static\n\t * @internal\n\t * @protected\n\t * @method module:engine/model/liveposition~LivePosition._createBefore\n\t * @see module:engine/model/position~Position._createBefore\n\t * @param {module:engine/model/node~Node} node\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone']\n\t * @returns {module:engine/model/liveposition~LivePosition}\n\t */\n\n\tdeclare public static readonly _createBefore: ( item: Item | DocumentFragment, stickiness?: PositionStickiness ) => LivePosition;\n\n\t/**\n\t * @static\n\t * @internal\n\t * @protected\n\t * @method module:engine/model/liveposition~LivePosition._createAt\n\t * @see module:engine/model/position~Position._createAt\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset]\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone']\n\t * @returns {module:engine/model/liveposition~LivePosition}\n\t */\n\n\tdeclare public static readonly _createAt: (\n\t\titemOrPosition: Item | Position | DocumentFragment,\n\t\toffset?: number | 'before' | 'after' | 'end',\n\t\tstickiness?: PositionStickiness\n\t) => LivePosition;\n\n\t/**\n\t * Fired when `LivePosition` instance is changed due to changes on {@link module:engine/model/document~Document}.\n\t *\n\t * @event module:engine/model/liveposition~LivePosition#change\n\t * @param {module:engine/model/position~Position} oldPosition Position equal to this live position before it got changed.\n\t */\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tlivePosition.is( 'position' ); // -> true\n *\t\tlivePosition.is( 'model:position' ); // -> true\n *\t\tlivePosition.is( 'liveposition' ); // -> true\n *\t\tlivePosition.is( 'model:livePosition' ); // -> true\n *\n *\t\tlivePosition.is( 'view:position' ); // -> false\n *\t\tlivePosition.is( 'documentSelection' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nLivePosition.prototype.is = function( type: string ): boolean {\n\treturn type === 'livePosition' || type === 'model:livePosition' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype == 'position' || type === 'model:position';\n};\n\n// Binds this `LivePosition` to the {@link module:engine/model/document~Document document} that owns\n// this position's {@link module:engine/model/position~Position#root root}.\n//\n// @private\nfunction bindWithDocument( this: LivePosition ) {\n\tthis.listenTo<ModelApplyOperationEvent>(\n\t\tthis.root.document!.model,\n\t\t'applyOperation',\n\t\t( event, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( !operation.isDocumentOperation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\ttransform.call( this, operation );\n\t\t},\n\t\t{ priority: 'low' }\n\t);\n}\n\n// Updates this position accordingly to the updates applied to the model. Bases on change events.\n//\n// @private\n// @param {module:engine/model/operation/operation~Operation} operation Executed operation.\nfunction transform( this: LivePosition, operation: Operation ) {\n\tconst result = this.getTransformedByOperation( operation );\n\n\tif ( !this.isEqual( result ) ) {\n\t\tconst oldPosition = this.toPosition();\n\n\t\tthis.path = result.path;\n\t\t( this as any ).root = result.root;\n\n\t\tthis.fire<LivePositionChangeEvent>( 'change', oldPosition );\n\t}\n}\n\nexport type LivePositionChangeEvent = {\n\tname: 'change';\n\targs: [ oldPosition: Position ];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/batch\n */\n\nimport { logWarning } from '@ckeditor/ckeditor5-utils';\nimport type Operation from './operation/operation';\n\n/**\n * A batch instance groups model changes ({@link module:engine/model/operation/operation~Operation operations}). All operations\n * grouped in a single batch can be reverted together, so you can also think about a batch as of a single undo step. If you want\n * to extend a given undo step, you can add more changes to the batch using {@link module:engine/model/model~Model#enqueueChange}:\n *\n *\t\tmodel.enqueueChange( batch, writer => {\n *\t\t\twriter.insertText( 'foo', paragraph, 'end' );\n *\t\t} );\n *\n * @see module:engine/model/model~Model#enqueueChange\n * @see module:engine/model/model~Model#change\n */\nexport default class Batch {\n\tpublic readonly operations: Array<Operation>;\n\tpublic readonly isUndoable: boolean;\n\tpublic readonly isLocal: boolean;\n\tpublic readonly isUndo: boolean;\n\tpublic readonly isTyping: boolean;\n\n\t/**\n\t * Creates a batch instance.\n\t *\n\t * @see module:engine/model/model~Model#enqueueChange\n\t * @see module:engine/model/model~Model#change\n\t * @param {Object} [type] A set of flags that specify the type of the batch. Batch type can alter how some of the features work\n\t * when encountering a given `Batch` instance (for example, when a feature listens to applied operations).\n\t * @param {Boolean} [type.isUndoable=true] Whether a batch can be undone through undo feature.\n\t * @param {Boolean} [type.isLocal=true] Whether a batch includes operations created locally (`true`) or operations created on\n\t * other, remote editors (`false`).\n\t * @param {Boolean} [type.isUndo=false] Whether a batch was created by the undo feature and undoes other operations.\n\t * @param {Boolean} [type.isTyping=false] Whether a batch includes operations connected with a typing action.\n\t */\n\tconstructor( type: BatchType = {} ) {\n\t\tif ( typeof type === 'string' ) {\n\t\t\ttype = type === 'transparent' ? { isUndoable: false } : {};\n\n\t\t\t/**\n\t\t\t * The string value for a `type` property of the `Batch` constructor has been deprecated and will be removed in the near future.\n\t\t\t * Please refer to the {@link module:engine/model/batch~Batch#constructor `Batch` constructor API documentation} for more\n\t\t\t * information.\n\t\t\t *\n\t\t\t * @error batch-constructor-deprecated-string-type\n\t\t\t */\n\t\t\tlogWarning( 'batch-constructor-deprecated-string-type' );\n\t\t}\n\n\t\tconst { isUndoable = true, isLocal = true, isUndo = false, isTyping = false } = type;\n\n\t\t/**\n\t\t * An array of operations that compose this batch.\n\t\t *\n\t\t * @readonly\n\t\t * @type {Array.<module:engine/model/operation/operation~Operation>}\n\t\t */\n\t\tthis.operations = [];\n\n\t\t/**\n\t\t * Whether the batch can be undone through the undo feature.\n\t\t *\n\t\t * @readonly\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.isUndoable = isUndoable;\n\n\t\t/**\n\t\t * Whether the batch includes operations created locally (`true`) or operations created on other, remote editors (`false`).\n\t\t *\n\t\t * @readonly\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.isLocal = isLocal;\n\n\t\t/**\n\t\t * Whether the batch was created by the undo feature and undoes other operations.\n\t\t *\n\t\t * @readonly\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.isUndo = isUndo;\n\n\t\t/**\n\t\t * Whether the batch includes operations connected with typing.\n\t\t *\n\t\t * @readonly\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.isTyping = isTyping;\n\t}\n\n\t/**\n\t * The type of the batch.\n\t *\n\t * **This property has been deprecated and is always set to the `'default'` value.**\n\t *\n\t * It can be one of the following values:\n\t * * `'default'` &ndash; All \"normal\" batches. This is the most commonly used type.\n\t * * `'transparent'` &ndash; A batch that should be ignored by other features, i.e. an initial batch or collaborative editing\n\t * changes.\n\t *\n\t * @deprecated\n\t * @type {'default'}\n\t */\n\tpublic get type(): 'default' {\n\t\t/**\n\t\t * The {@link module:engine/model/batch~Batch#type `Batch#type` } property has been deprecated and will be removed in the near\n\t\t * future. Use `Batch#isLocal`, `Batch#isUndoable`, `Batch#isUndo` and `Batch#isTyping` instead.\n\t\t *\n\t\t * @error batch-type-deprecated\n\t\t */\n\t\tlogWarning( 'batch-type-deprecated' );\n\n\t\treturn 'default';\n\t}\n\n\t/**\n\t * Returns the base version of this batch, which is equal to the base version of the first operation in the batch.\n\t * If there are no operations in the batch or neither operation has the base version set, it returns `null`.\n\t *\n\t * @readonly\n\t * @type {Number|null}\n\t */\n\tpublic get baseVersion(): number | null {\n\t\tfor ( const op of this.operations ) {\n\t\t\tif ( op.baseVersion !== null ) {\n\t\t\t\treturn op.baseVersion;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Adds an operation to the batch instance.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operation An operation to add.\n\t * @returns {module:engine/model/operation/operation~Operation} The added operation.\n\t */\n\tpublic addOperation( operation: Operation ): Operation {\n\t\toperation.batch = this;\n\t\tthis.operations.push( operation );\n\n\t\treturn operation;\n\t}\n}\n\n/**\n * A set of flags that specify the type of the batch. Batch type can alter how some of the features work\n * when encountering a given `Batch` instance (for example, when a feature listens to applied operations).\n */\nexport interface BatchType {\n\n\t/**\n\t * Whether a batch can be undone through undo feature.\n\t */\n\tisUndoable?: boolean;\n\n\t/**\n\t * Whether a batch includes operations created locally (`true`) or operations created on\n\t * other, remote editors (`false`).\n\t */\n\tisLocal?: boolean;\n\n\t/**\n\t * Whether a batch was created by the undo feature and undoes other operations.\n\t */\n\tisUndo?: boolean;\n\n\t/**\n\t * Whether a batch includes operations connected with a typing action.\n\t */\n\tisTyping?: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/differ\n */\n\nimport Position from './position';\nimport Range from './range';\n\nimport type { default as MarkerCollection, MarkerData } from './markercollection';\nimport type AttributeOperation from './operation/attributeoperation';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type InsertOperation from './operation/insertoperation';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Node from './node';\nimport type Operation from './operation/operation';\nimport type RenameOperation from './operation/renameoperation';\nimport type SplitOperation from './operation/splitoperation';\n\n/**\n * Calculates the difference between two model states.\n *\n * Receives operations that are to be applied on the model document. Marks parts of the model document tree which\n * are changed and saves the state of these elements before the change. Then, it compares saved elements with the\n * changed elements, after all changes are applied on the model document. Calculates the diff between saved\n * elements and new ones and returns a change set.\n */\nexport default class Differ {\n\tprivate readonly _markerCollection: MarkerCollection;\n\tprivate readonly _changesInElement: Map<Element | DocumentFragment, Array<ChangeItem>>;\n\tprivate readonly _elementSnapshots: Map<Element | DocumentFragment, Array<{ name: string; attributes: Map<string, unknown> }>>;\n\tprivate readonly _changedMarkers: Map<string, { newMarkerData: MarkerData; oldMarkerData: MarkerData }>;\n\tprivate _changeCount: number;\n\tprivate _cachedChanges: Array<DiffItem> | null;\n\tprivate _cachedChangesWithGraveyard: Array<DiffItem> | null;\n\tprivate _refreshedItems: Set<Item>;\n\n\t/**\n\t * Creates a `Differ` instance.\n\t *\n\t * @param {module:engine/model/markercollection~MarkerCollection} markerCollection Model's marker collection.\n\t */\n\tconstructor( markerCollection: MarkerCollection ) {\n\t\t/**\n\t\t * Reference to the model's marker collection.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/markercollection~MarkerCollection}\n\t\t */\n\t\tthis._markerCollection = markerCollection;\n\n\t\t/**\n\t\t * A map that stores changes that happened in a given element.\n\t\t *\n\t\t * The keys of the map are references to the model elements.\n\t\t * The values of the map are arrays with changes that were done on this element.\n\t\t *\n\t\t * @private\n\t\t * @type {Map}\n\t\t */\n\t\tthis._changesInElement = new Map();\n\n\t\t/**\n\t\t * A map that stores \"element's children snapshots\". A snapshot is representing children of a given element before\n\t\t * the first change was applied on that element. Snapshot items are objects with two properties: `name`,\n\t\t * containing the element name (or `'$text'` for a text node) and `attributes` which is a map of the node's attributes.\n\t\t *\n\t\t * @private\n\t\t * @type {Map}\n\t\t */\n\t\tthis._elementSnapshots = new Map();\n\n\t\t/**\n\t\t * A map that stores all changed markers.\n\t\t *\n\t\t * The keys of the map are marker names.\n\t\t * The values of the map are objects with the following properties:\n\t\t * - `oldMarkerData`,\n\t\t * - `newMarkerData`.\n\t\t *\n\t\t * @private\n\t\t * @type {Map.<String, Object>}\n\t\t */\n\t\tthis._changedMarkers = new Map();\n\n\t\t/**\n\t\t * Stores the number of changes that were processed. Used to order the changes chronologically. It is important\n\t\t * when changes are sorted.\n\t\t *\n\t\t * @private\n\t\t * @type {Number}\n\t\t */\n\t\tthis._changeCount = 0;\n\n\t\t/**\n\t\t * For efficiency purposes, `Differ` stores the change set returned by the differ after {@link #getChanges} call.\n\t\t * Cache is reset each time a new operation is buffered. If the cache has not been reset, {@link #getChanges} will\n\t\t * return the cached value instead of calculating it again.\n\t\t *\n\t\t * This property stores those changes that did not take place in graveyard root.\n\t\t *\n\t\t * @private\n\t\t * @type {Array.<Object>|null}\n\t\t */\n\t\tthis._cachedChanges = null;\n\n\t\t/**\n\t\t * For efficiency purposes, `Differ` stores the change set returned by the differ after the {@link #getChanges} call.\n\t\t * The cache is reset each time a new operation is buffered. If the cache has not been reset, {@link #getChanges} will\n\t\t * return the cached value instead of calculating it again.\n\t\t *\n\t\t * This property stores all changes evaluated by `Differ`, including those that took place in the graveyard.\n\t\t *\n\t\t * @private\n\t\t * @type {Array.<Object>|null}\n\t\t */\n\t\tthis._cachedChangesWithGraveyard = null;\n\n\t\t/**\n\t\t * Set of model items that were marked to get refreshed in {@link #_refreshItem}.\n\t\t *\n\t\t * @private\n\t\t * @type {Set.<module:engine/model/item~Item>}\n\t\t */\n\t\tthis._refreshedItems = new Set();\n\t}\n\n\t/**\n\t * Informs whether there are any changes buffered in `Differ`.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this._changesInElement.size == 0 && this._changedMarkers.size == 0;\n\t}\n\n\t/**\n\t * Buffers the given operation. An operation has to be buffered before it is executed.\n\t *\n\t * Operation type is checked and it is checked which nodes it will affect. These nodes are then stored in `Differ`\n\t * in the state before the operation is executed.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operationToBuffer An operation to buffer.\n\t */\n\tpublic bufferOperation( operationToBuffer: Operation ): void {\n\t\t// Below we take an operation, check its type, then use its parameters in marking (private) methods.\n\t\t// The general rule is to not mark elements inside inserted element. All inserted elements are re-rendered.\n\t\t// Marking changes in them would cause a \"double\" changing then.\n\t\t//\n\t\tconst operation = operationToBuffer as (\n\t\t\tInsertOperation |\n\t\t\tAttributeOperation |\n\t\t\tMoveOperation |\n\t\t\tRenameOperation |\n\t\t\tSplitOperation |\n\t\t\tMergeOperation\n\t\t);\n\n\t\tswitch ( operation.type ) {\n\t\t\tcase 'insert': {\n\t\t\t\tif ( this._isInInsertedElement( operation.position.parent ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis._markInsert( operation.position.parent, operation.position.offset, operation.nodes.maxOffset );\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'addAttribute':\n\t\t\tcase 'removeAttribute':\n\t\t\tcase 'changeAttribute': {\n\t\t\t\tfor ( const item of operation.range.getItems( { shallow: true } ) ) {\n\t\t\t\t\tif ( this._isInInsertedElement( item.parent! ) ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tthis._markAttribute( item );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'remove':\n\t\t\tcase 'move':\n\t\t\tcase 'reinsert': {\n\t\t\t\t// When range is moved to the same position then not mark it as a change.\n\t\t\t\t// See: https://github.com/ckeditor/ckeditor5-engine/issues/1664.\n\t\t\t\tif (\n\t\t\t\t\toperation.sourcePosition.isEqual( operation.targetPosition ) ||\n\t\t\t\t\toperation.sourcePosition.getShiftedBy( operation.howMany ).isEqual( operation.targetPosition )\n\t\t\t\t) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst sourceParentInserted = this._isInInsertedElement( operation.sourcePosition.parent );\n\t\t\t\tconst targetParentInserted = this._isInInsertedElement( operation.targetPosition.parent );\n\n\t\t\t\tif ( !sourceParentInserted ) {\n\t\t\t\t\tthis._markRemove( operation.sourcePosition.parent, operation.sourcePosition.offset, operation.howMany );\n\t\t\t\t}\n\n\t\t\t\tif ( !targetParentInserted ) {\n\t\t\t\t\tthis._markInsert( operation.targetPosition.parent, operation.getMovedRangeStart().offset, operation.howMany );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'rename': {\n\t\t\t\tif ( this._isInInsertedElement( operation.position.parent ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis._markRemove( operation.position.parent, operation.position.offset, 1 );\n\t\t\t\tthis._markInsert( operation.position.parent, operation.position.offset, 1 );\n\n\t\t\t\tconst range = Range._createFromPositionAndShift( operation.position, 1 );\n\n\t\t\t\tfor ( const marker of this._markerCollection.getMarkersIntersectingRange( range ) ) {\n\t\t\t\t\tconst markerData = marker.getData();\n\n\t\t\t\t\tthis.bufferMarkerChange( marker.name, markerData, markerData );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'split': {\n\t\t\t\tconst splitElement = operation.splitPosition.parent;\n\n\t\t\t\t// Mark that children of the split element were removed.\n\t\t\t\tif ( !this._isInInsertedElement( splitElement ) ) {\n\t\t\t\t\tthis._markRemove( splitElement, operation.splitPosition.offset, operation.howMany );\n\t\t\t\t}\n\n\t\t\t\t// Mark that the new element (split copy) was inserted.\n\t\t\t\tif ( !this._isInInsertedElement( operation.insertionPosition.parent ) ) {\n\t\t\t\t\tthis._markInsert( operation.insertionPosition.parent, operation.insertionPosition.offset, 1 );\n\t\t\t\t}\n\n\t\t\t\t// If the split took the element from the graveyard, mark that the element from the graveyard was removed.\n\t\t\t\tif ( operation.graveyardPosition ) {\n\t\t\t\t\tthis._markRemove( operation.graveyardPosition.parent, operation.graveyardPosition.offset, 1 );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'merge': {\n\t\t\t\t// Mark that the merged element was removed.\n\t\t\t\tconst mergedElement = operation.sourcePosition.parent;\n\n\t\t\t\tif ( !this._isInInsertedElement( mergedElement.parent! ) ) {\n\t\t\t\t\tthis._markRemove( mergedElement.parent!, ( mergedElement as any ).startOffset, 1 );\n\t\t\t\t}\n\n\t\t\t\t// Mark that the merged element was inserted into graveyard.\n\t\t\t\tconst graveyardParent = operation.graveyardPosition.parent;\n\n\t\t\t\tthis._markInsert( graveyardParent, operation.graveyardPosition.offset, 1 );\n\n\t\t\t\t// Mark that children of merged element were inserted at new parent.\n\t\t\t\tconst mergedIntoElement = operation.targetPosition.parent;\n\n\t\t\t\tif ( !this._isInInsertedElement( mergedIntoElement ) ) {\n\t\t\t\t\tthis._markInsert( mergedIntoElement, operation.targetPosition.offset, mergedElement.maxOffset );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\t// Clear cache after each buffered operation as it is no longer valid.\n\t\tthis._cachedChanges = null;\n\t}\n\n\t/**\n\t * Buffers a marker change.\n\t *\n\t * @param {String} markerName The name of the marker that changed.\n\t * @param {module:engine/model/markercollection~MarkerData} oldMarkerData Marker data before the change.\n\t * @param {module:engine/model/markercollection~MarkerData} newMarkerData Marker data after the change.\n\t */\n\tpublic bufferMarkerChange( markerName: string, oldMarkerData: MarkerData, newMarkerData: MarkerData ): void {\n\t\tconst buffered = this._changedMarkers.get( markerName );\n\n\t\tif ( !buffered ) {\n\t\t\tthis._changedMarkers.set( markerName, {\n\t\t\t\tnewMarkerData,\n\t\t\t\toldMarkerData\n\t\t\t} );\n\t\t} else {\n\t\t\tbuffered.newMarkerData = newMarkerData;\n\n\t\t\tif ( buffered.oldMarkerData.range == null && newMarkerData.range == null ) {\n\t\t\t\t// The marker is going to be removed (`newMarkerData.range == null`) but it did not exist before the first buffered change\n\t\t\t\t// (`buffered.oldMarkerData.range == null`). In this case, do not keep the marker in buffer at all.\n\t\t\t\tthis._changedMarkers.delete( markerName );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns all markers that should be removed as a result of buffered changes.\n\t *\n\t * @returns {Array.<Object>} Markers to remove. Each array item is an object containing the `name` and `range` properties.\n\t */\n\tpublic getMarkersToRemove(): Array<{ name: string; range: Range }> {\n\t\tconst result = [];\n\n\t\tfor ( const [ name, change ] of this._changedMarkers ) {\n\t\t\tif ( change.oldMarkerData.range != null ) {\n\t\t\t\tresult.push( { name, range: change.oldMarkerData.range } );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns all markers which should be added as a result of buffered changes.\n\t *\n\t * @returns {Array.<Object>} Markers to add. Each array item is an object containing the `name` and `range` properties.\n\t */\n\tpublic getMarkersToAdd(): Array<{ name: string; range: Range }> {\n\t\tconst result = [];\n\n\t\tfor ( const [ name, change ] of this._changedMarkers ) {\n\t\t\tif ( change.newMarkerData.range != null ) {\n\t\t\t\tresult.push( { name, range: change.newMarkerData.range } );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns all markers which changed.\n\t *\n\t * @returns {Array.<Object>}\n\t */\n\tpublic getChangedMarkers(): Array<{\n\t\tname: string;\n\t\tdata: {\n\t\t\toldRange: Range | null;\n\t\t\tnewRange: Range | null;\n\t\t};\n\t}> {\n\t\treturn Array.from( this._changedMarkers ).map( ( [ name, change ] ) => (\n\t\t\t{\n\t\t\t\tname,\n\t\t\t\tdata: {\n\t\t\t\t\toldRange: change.oldMarkerData.range,\n\t\t\t\t\tnewRange: change.newMarkerData.range\n\t\t\t\t}\n\t\t\t}\n\t\t) );\n\t}\n\n\t/**\n\t * Checks whether some of the buffered changes affect the editor data.\n\t *\n\t * Types of changes which affect the editor data:\n\t *\n\t * * model structure changes,\n\t * * attribute changes,\n\t * * changes of markers which were defined as `affectsData`,\n\t * * changes of markers' `affectsData` property.\n\t *\n\t * @returns {Boolean}\n\t */\n\tpublic hasDataChanges(): boolean {\n\t\tif ( this._changesInElement.size > 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tfor ( const { newMarkerData, oldMarkerData } of this._changedMarkers.values() ) {\n\t\t\tif ( newMarkerData.affectsData !== oldMarkerData.affectsData ) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tif ( newMarkerData.affectsData ) {\n\t\t\t\tconst markerAdded = newMarkerData.range && !oldMarkerData.range;\n\t\t\t\tconst markerRemoved = !newMarkerData.range && oldMarkerData.range;\n\t\t\t\tconst markerChanged = newMarkerData.range && oldMarkerData.range && !newMarkerData.range.isEqual( oldMarkerData.range );\n\n\t\t\t\tif ( markerAdded || markerRemoved || markerChanged ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Calculates the diff between the old model tree state (the state before the first buffered operations since the last {@link #reset}\n\t * call) and the new model tree state (actual one). It should be called after all buffered operations are executed.\n\t *\n\t * The diff set is returned as an array of {@link module:engine/model/differ~DiffItem diff items}, each describing a change done\n\t * on the model. The items are sorted by the position on which the change happened. If a position\n\t * {@link module:engine/model/position~Position#isBefore is before} another one, it will be on an earlier index in the diff set.\n\t *\n\t * **Note**: Elements inside inserted element will not have a separate diff item, only the top most element change will be reported.\n\t *\n\t * Because calculating the diff is a costly operation, the result is cached. If no new operation was buffered since the\n\t * previous {@link #getChanges} call, the next call will return the cached value.\n\t *\n\t * @param {Object} options Additional options.\n\t * @param {Boolean} [options.includeChangesInGraveyard=false] If set to `true`, also changes that happened\n\t * in the graveyard root will be returned. By default, changes in the graveyard root are not returned.\n\t * @returns {Array.<module:engine/model/differ~DiffItem>} Diff between the old and the new model tree state.\n\t */\n\tpublic getChanges( options: { includeChangesInGraveyard?: boolean } = {} ): Array<DiffItem> {\n\t\t// If there are cached changes, just return them instead of calculating changes again.\n\t\tif ( this._cachedChanges ) {\n\t\t\tif ( options.includeChangesInGraveyard ) {\n\t\t\t\treturn this._cachedChangesWithGraveyard!.slice();\n\t\t\t} else {\n\t\t\t\treturn this._cachedChanges.slice();\n\t\t\t}\n\t\t}\n\n\t\t// Will contain returned results.\n\t\tlet diffSet: Array<DiffItem & DiffItemInternal> = [];\n\n\t\t// Check all changed elements.\n\t\tfor ( const element of this._changesInElement.keys() ) {\n\t\t\t// Get changes for this element and sort them.\n\t\t\tconst changes = this._changesInElement.get( element )!.sort( ( a, b ) => {\n\t\t\t\tif ( a.offset === b.offset ) {\n\t\t\t\t\tif ( a.type != b.type ) {\n\t\t\t\t\t\t// If there are multiple changes at the same position, \"remove\" change should be first.\n\t\t\t\t\t\t// If the order is different, for example, we would first add some nodes and then removed them\n\t\t\t\t\t\t// (instead of the nodes that we should remove).\n\t\t\t\t\t\treturn a.type == 'remove' ? -1 : 1;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn 0;\n\t\t\t\t}\n\n\t\t\t\treturn a.offset < b.offset ? -1 : 1;\n\t\t\t} );\n\n\t\t\t// Get children of this element before any change was applied on it.\n\t\t\tconst snapshotChildren = this._elementSnapshots.get( element )!;\n\t\t\t// Get snapshot of current element's children.\n\t\t\tconst elementChildren = _getChildrenSnapshot( element.getChildren() );\n\n\t\t\t// Generate actions basing on changes done on element.\n\t\t\tconst actions = _generateActionsFromChanges( snapshotChildren.length, changes );\n\n\t\t\tlet i = 0; // Iterator in `elementChildren` array -- iterates through current children of element.\n\t\t\tlet j = 0; // Iterator in `snapshotChildren` array -- iterates through old children of element.\n\n\t\t\t// Process every action.\n\t\t\tfor ( const action of actions ) {\n\t\t\t\tif ( action === 'i' ) {\n\t\t\t\t\t// Generate diff item for this element and insert it into the diff set.\n\t\t\t\t\tdiffSet.push( this._getInsertDiff( element, i, elementChildren[ i ] ) );\n\n\t\t\t\t\ti++;\n\t\t\t\t} else if ( action === 'r' ) {\n\t\t\t\t\t// Generate diff item for this element and insert it into the diff set.\n\t\t\t\t\tdiffSet.push( this._getRemoveDiff( element, i, snapshotChildren[ j ] ) );\n\n\t\t\t\t\tj++;\n\t\t\t\t} else if ( action === 'a' ) {\n\t\t\t\t\t// Take attributes from saved and current children.\n\t\t\t\t\tconst elementAttributes = elementChildren[ i ].attributes;\n\t\t\t\t\tconst snapshotAttributes = snapshotChildren[ j ].attributes;\n\t\t\t\t\tlet range;\n\n\t\t\t\t\tif ( elementChildren[ i ].name == '$text' ) {\n\t\t\t\t\t\trange = new Range( Position._createAt( element, i ), Position._createAt( element, i + 1 ) );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tconst index = element.offsetToIndex( i );\n\t\t\t\t\t\trange = new Range( Position._createAt( element, i ), Position._createAt( element.getChild( index )!, 0 ) );\n\t\t\t\t\t}\n\n\t\t\t\t\t// Generate diff items for this change (there might be multiple attributes changed and\n\t\t\t\t\t// there is a single diff for each of them) and insert them into the diff set.\n\t\t\t\t\tdiffSet.push( ...this._getAttributesDiff( range, snapshotAttributes, elementAttributes ) );\n\n\t\t\t\t\ti++;\n\t\t\t\t\tj++;\n\t\t\t\t} else {\n\t\t\t\t\t// `action` is 'equal'. Child not changed.\n\t\t\t\t\ti++;\n\t\t\t\t\tj++;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Then, sort the changes by the position (change at position before other changes is first).\n\t\tdiffSet.sort( ( a, b ) => {\n\t\t\t// If the change is in different root, we don't care much, but we'd like to have all changes in given\n\t\t\t// root \"together\" in the array. So let's just sort them by the root name. It does not matter which root\n\t\t\t// will be processed first.\n\t\t\tif ( a.position!.root != b.position!.root ) {\n\t\t\t\treturn a.position!.root.rootName! < b.position!.root.rootName! ? -1 : 1;\n\t\t\t}\n\n\t\t\t// If change happens at the same position...\n\t\t\tif ( a.position!.isEqual( b.position! ) ) {\n\t\t\t\t// Keep chronological order of operations.\n\t\t\t\treturn a.changeCount! - b.changeCount!;\n\t\t\t}\n\n\t\t\t// If positions differ, position \"on the left\" should be earlier in the result.\n\t\t\treturn a.position!.isBefore( b.position! ) ? -1 : 1;\n\t\t} );\n\n\t\t// Glue together multiple changes (mostly on text nodes).\n\t\tfor ( let i = 1, prevIndex = 0; i < diffSet.length; i++ ) {\n\t\t\tconst prevDiff = diffSet[ prevIndex ];\n\t\t\tconst thisDiff = diffSet[ i ];\n\n\t\t\t// Glue remove changes if they happen on text on same position.\n\t\t\tconst isConsecutiveTextRemove =\n\t\t\t\tprevDiff.type == 'remove' && thisDiff.type == 'remove' &&\n\t\t\t\tprevDiff.name == '$text' && thisDiff.name == '$text' &&\n\t\t\t\tprevDiff.position.isEqual( thisDiff.position );\n\n\t\t\t// Glue insert changes if they happen on text on consecutive fragments.\n\t\t\tconst isConsecutiveTextAdd =\n\t\t\t\tprevDiff.type == 'insert' && thisDiff.type == 'insert' &&\n\t\t\t\tprevDiff.name == '$text' && thisDiff.name == '$text' &&\n\t\t\t\tprevDiff.position.parent == thisDiff.position.parent &&\n\t\t\t\tprevDiff.position.offset + prevDiff.length == thisDiff.position.offset;\n\n\t\t\t// Glue attribute changes if they happen on consecutive fragments and have same key, old value and new value.\n\t\t\tconst isConsecutiveAttributeChange =\n\t\t\t\tprevDiff.type == 'attribute' && thisDiff.type == 'attribute' &&\n\t\t\t\tprevDiff.position!.parent == thisDiff.position!.parent &&\n\t\t\t\tprevDiff.range.isFlat && thisDiff.range.isFlat &&\n\t\t\t\t( prevDiff.position!.offset + prevDiff.length! ) == thisDiff.position!.offset &&\n\t\t\t\tprevDiff.attributeKey == thisDiff.attributeKey &&\n\t\t\t\tprevDiff.attributeOldValue == thisDiff.attributeOldValue &&\n\t\t\t\tprevDiff.attributeNewValue == thisDiff.attributeNewValue;\n\n\t\t\tif ( isConsecutiveTextRemove || isConsecutiveTextAdd || isConsecutiveAttributeChange ) {\n\t\t\t\tprevDiff.length!++;\n\n\t\t\t\tif ( isConsecutiveAttributeChange ) {\n\t\t\t\t\t( prevDiff.range as any ).end = prevDiff.range.end.getShiftedBy( 1 );\n\t\t\t\t}\n\n\t\t\t\tdiffSet[ i ] = null as any;\n\t\t\t} else {\n\t\t\t\tprevIndex = i;\n\t\t\t}\n\t\t}\n\n\t\tdiffSet = diffSet.filter( v => v );\n\n\t\t// Remove `changeCount` property from diff items. It is used only for sorting and is internal thing.\n\t\tfor ( const item of diffSet ) {\n\t\t\tdelete item.changeCount;\n\n\t\t\tif ( item.type == 'attribute' ) {\n\t\t\t\tdelete item.position;\n\t\t\t\tdelete item.length;\n\t\t\t}\n\t\t}\n\n\t\tthis._changeCount = 0;\n\n\t\t// Cache changes.\n\t\tthis._cachedChangesWithGraveyard = diffSet;\n\t\tthis._cachedChanges = diffSet.filter( _changesInGraveyardFilter );\n\n\t\tif ( options.includeChangesInGraveyard ) {\n\t\t\treturn this._cachedChangesWithGraveyard.slice();\n\t\t} else {\n\t\t\treturn this._cachedChanges.slice();\n\t\t}\n\t}\n\n\t/**\n\t * Returns a set of model items that were marked to get refreshed.\n\t *\n\t * @return {Set.<module:engine/model/item~Item>}\n\t */\n\tpublic getRefreshedItems(): Set<Item> {\n\t\treturn new Set( this._refreshedItems );\n\t}\n\n\t/**\n\t * Resets `Differ`. Removes all buffered changes.\n\t */\n\tpublic reset(): void {\n\t\tthis._changesInElement.clear();\n\t\tthis._elementSnapshots.clear();\n\t\tthis._changedMarkers.clear();\n\t\tthis._refreshedItems = new Set();\n\t\tthis._cachedChanges = null;\n\t}\n\n\t/**\n\t * Marks the given `item` in differ to be \"refreshed\". It means that the item will be marked as removed and inserted\n\t * in the differ changes set, so it will be effectively re-converted when the differ changes are handled by a dispatcher.\n\t *\n\t * @protected\n\t * @internal\n\t * @param {module:engine/model/item~Item} item Item to refresh.\n\t */\n\tpublic _refreshItem( item: Item ): void {\n\t\tif ( this._isInInsertedElement( item.parent! ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._markRemove( item.parent!, item.startOffset!, item.offsetSize );\n\t\tthis._markInsert( item.parent!, item.startOffset!, item.offsetSize );\n\n\t\tthis._refreshedItems.add( item );\n\n\t\tconst range = Range._createOn( item );\n\n\t\tfor ( const marker of this._markerCollection.getMarkersIntersectingRange( range ) ) {\n\t\t\tconst markerData = marker.getData();\n\n\t\t\tthis.bufferMarkerChange( marker.name, markerData, markerData );\n\t\t}\n\n\t\t// Clear cache after each buffered operation as it is no longer valid.\n\t\tthis._cachedChanges = null;\n\t}\n\n\t/**\n\t * Saves and handles an insert change.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} parent\n\t * @param {Number} offset\n\t * @param {Number} howMany\n\t */\n\tprivate _markInsert( parent: Element | DocumentFragment, offset: number, howMany: number ) {\n\t\tconst changeItem = { type: 'insert', offset, howMany, count: this._changeCount++ } as const;\n\n\t\tthis._markChange( parent, changeItem );\n\t}\n\n\t/**\n\t * Saves and handles a remove change.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} parent\n\t * @param {Number} offset\n\t * @param {Number} howMany\n\t */\n\tprivate _markRemove( parent: Element | DocumentFragment, offset: number, howMany: number ) {\n\t\tconst changeItem = { type: 'remove', offset, howMany, count: this._changeCount++ } as const;\n\n\t\tthis._markChange( parent, changeItem );\n\n\t\tthis._removeAllNestedChanges( parent, offset, howMany );\n\t}\n\n\t/**\n\t * Saves and handles an attribute change.\n\t *\n\t * @private\n\t * @param {module:engine/model/item~Item} item\n\t */\n\tprivate _markAttribute( item: Item ): void {\n\t\tconst changeItem = { type: 'attribute', offset: item.startOffset!, howMany: item.offsetSize, count: this._changeCount++ } as const;\n\n\t\tthis._markChange( item.parent as Element, changeItem );\n\t}\n\n\t/**\n\t * Saves and handles a model change.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} parent\n\t * @param {Object} changeItem\n\t */\n\tprivate _markChange( parent: Element | DocumentFragment, changeItem: ChangeItem ): void {\n\t\t// First, make a snapshot of this parent's children (it will be made only if it was not made before).\n\t\tthis._makeSnapshot( parent );\n\n\t\t// Then, get all changes that already were done on the element (empty array if this is the first change).\n\t\tconst changes = this._getChangesForElement( parent );\n\n\t\t// Then, look through all the changes, and transform them or the new change.\n\t\tthis._handleChange( changeItem, changes );\n\n\t\t// Add the new change.\n\t\tchanges.push( changeItem );\n\n\t\t// Remove incorrect changes. During transformation some change might be, for example, included in another.\n\t\t// In that case, the change will have `howMany` property set to `0` or less. We need to remove those changes.\n\t\tfor ( let i = 0; i < changes.length; i++ ) {\n\t\t\tif ( changes[ i ].howMany < 1 ) {\n\t\t\t\tchanges.splice( i, 1 );\n\n\t\t\t\ti--;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Gets an array of changes that have already been saved for a given element.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} element\n\t * @returns {Array.<Object>}\n\t */\n\tprivate _getChangesForElement( element: Element | DocumentFragment ): Array<ChangeItem> {\n\t\tlet changes: Array<ChangeItem>;\n\n\t\tif ( this._changesInElement.has( element ) ) {\n\t\t\tchanges = this._changesInElement.get( element )!;\n\t\t} else {\n\t\t\tchanges = [];\n\n\t\t\tthis._changesInElement.set( element, changes );\n\t\t}\n\n\t\treturn changes;\n\t}\n\n\t/**\n\t * Saves a children snapshot for a given element.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} element\n\t */\n\tprivate _makeSnapshot( element: Element | DocumentFragment ): void {\n\t\tif ( !this._elementSnapshots.has( element ) ) {\n\t\t\tthis._elementSnapshots.set( element, _getChildrenSnapshot( element.getChildren() ) );\n\t\t}\n\t}\n\n\t/**\n\t * For a given newly saved change, compares it with a change already done on the element and modifies the incoming\n\t * change and/or the old change.\n\t *\n\t * @private\n\t * @param {Object} inc Incoming (new) change.\n\t * @param {Array.<Object>} changes An array containing all the changes done on that element.\n\t */\n\tprivate _handleChange( inc: ChangeItem, changes: Array<ChangeItem> ): void {\n\t\t// We need a helper variable that will store how many nodes are to be still handled for this change item.\n\t\t// `nodesToHandle` (how many nodes still need to be handled) and `howMany` (how many nodes were affected)\n\t\t// needs to be differentiated.\n\t\t//\n\t\t// This comes up when there are multiple changes that are affected by `inc` change item.\n\t\t//\n\t\t// For example: assume two insert changes: `{ offset: 2, howMany: 1 }` and `{ offset: 5, howMany: 1 }`.\n\t\t// Assume that `inc` change is remove `{ offset: 2, howMany: 2, nodesToHandle: 2 }`.\n\t\t//\n\t\t// Then, we:\n\t\t// - \"forget\" about first insert change (it is \"eaten\" by remove),\n\t\t// - because of that, at the end we will want to remove only one node (`nodesToHandle = 1`),\n\t\t// - but still we have to change offset of the second insert change from `5` to `3`!\n\t\t//\n\t\t// So, `howMany` does not change throughout items transformation and keeps information about how many nodes were affected,\n\t\t// while `nodesToHandle` means how many nodes need to be handled after the change item is transformed by other changes.\n\t\tinc.nodesToHandle = inc.howMany;\n\n\t\tfor ( const old of changes ) {\n\t\t\tconst incEnd = inc.offset + inc.howMany;\n\t\t\tconst oldEnd = old.offset + old.howMany;\n\n\t\t\tif ( inc.type == 'insert' ) {\n\t\t\t\tif ( old.type == 'insert' ) {\n\t\t\t\t\tif ( inc.offset <= old.offset ) {\n\t\t\t\t\t\told.offset += inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\told.howMany += inc.nodesToHandle;\n\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'remove' ) {\n\t\t\t\t\tif ( inc.offset < old.offset ) {\n\t\t\t\t\t\told.offset += inc.howMany;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'attribute' ) {\n\t\t\t\t\tif ( inc.offset <= old.offset ) {\n\t\t\t\t\t\told.offset += inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\t// This case is more complicated, because attribute change has to be split into two.\n\t\t\t\t\t\t// Example (assume that uppercase and lowercase letters mean different attributes):\n\t\t\t\t\t\t//\n\t\t\t\t\t\t// initial state:\t\tabcxyz\n\t\t\t\t\t\t// attribute change:\taBCXYz\n\t\t\t\t\t\t// incoming insert:\t\taBCfooXYz\n\t\t\t\t\t\t//\n\t\t\t\t\t\t// Change ranges cannot intersect because each item has to be described exactly (it was either\n\t\t\t\t\t\t// not changed, inserted, removed, or its attribute was changed). That's why old attribute\n\t\t\t\t\t\t// change has to be split and both parts has to be handled separately from now on.\n\t\t\t\t\t\tconst howMany = old.howMany;\n\n\t\t\t\t\t\told.howMany = inc.offset - old.offset;\n\n\t\t\t\t\t\t// Add the second part of attribute change to the beginning of processed array so it won't\n\t\t\t\t\t\t// be processed again in this loop.\n\t\t\t\t\t\tchanges.unshift( {\n\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\toffset: incEnd,\n\t\t\t\t\t\t\thowMany: howMany - old.howMany,\n\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t} );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( inc.type == 'remove' ) {\n\t\t\t\tif ( old.type == 'insert' ) {\n\t\t\t\t\tif ( incEnd <= old.offset ) {\n\t\t\t\t\t\told.offset -= inc.howMany;\n\t\t\t\t\t} else if ( incEnd <= oldEnd ) {\n\t\t\t\t\t\tif ( inc.offset < old.offset ) {\n\t\t\t\t\t\t\tconst intersectionLength = incEnd - old.offset;\n\n\t\t\t\t\t\t\told.offset = inc.offset;\n\n\t\t\t\t\t\t\told.howMany -= intersectionLength;\n\t\t\t\t\t\t\tinc.nodesToHandle -= intersectionLength;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\told.howMany -= inc.nodesToHandle;\n\t\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif ( inc.offset <= old.offset ) {\n\t\t\t\t\t\t\tinc.nodesToHandle -= old.howMany;\n\t\t\t\t\t\t\told.howMany = 0;\n\t\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\t\tconst intersectionLength = oldEnd - inc.offset;\n\n\t\t\t\t\t\t\told.howMany -= intersectionLength;\n\t\t\t\t\t\t\tinc.nodesToHandle -= intersectionLength;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'remove' ) {\n\t\t\t\t\tif ( incEnd <= old.offset ) {\n\t\t\t\t\t\told.offset -= inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < old.offset ) {\n\t\t\t\t\t\tinc.nodesToHandle += old.howMany;\n\t\t\t\t\t\told.howMany = 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'attribute' ) {\n\t\t\t\t\tif ( incEnd <= old.offset ) {\n\t\t\t\t\t\told.offset -= inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < old.offset ) {\n\t\t\t\t\t\tconst intersectionLength = incEnd - old.offset;\n\n\t\t\t\t\t\told.offset = inc.offset;\n\t\t\t\t\t\told.howMany -= intersectionLength;\n\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\tif ( incEnd <= oldEnd ) {\n\t\t\t\t\t\t\t// On first sight in this case we don't need to split attribute operation into two.\n\t\t\t\t\t\t\t// However the changes set is later converted to actions (see `_generateActionsFromChanges`).\n\t\t\t\t\t\t\t// For that reason, no two changes may intersect.\n\t\t\t\t\t\t\t// So we cannot have an attribute change that \"contains\" remove change.\n\t\t\t\t\t\t\t// Attribute change needs to be split.\n\t\t\t\t\t\t\tconst howMany = old.howMany;\n\n\t\t\t\t\t\t\told.howMany = inc.offset - old.offset;\n\n\t\t\t\t\t\t\tconst howManyAfter = howMany - old.howMany - inc.nodesToHandle;\n\n\t\t\t\t\t\t\t// Add the second part of attribute change to the beginning of processed array so it won't\n\t\t\t\t\t\t\t// be processed again in this loop.\n\t\t\t\t\t\t\tchanges.unshift( {\n\t\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\t\toffset: inc.offset,\n\t\t\t\t\t\t\t\thowMany: howManyAfter,\n\t\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\told.howMany -= oldEnd - inc.offset;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( inc.type == 'attribute' ) {\n\t\t\t\t// In case of attribute change, `howMany` should be kept same as `nodesToHandle`. It's not an error.\n\t\t\t\tif ( old.type == 'insert' ) {\n\t\t\t\t\tif ( inc.offset < old.offset && incEnd > old.offset ) {\n\t\t\t\t\t\tif ( incEnd > oldEnd ) {\n\t\t\t\t\t\t\t// This case is similar to a case described when incoming change was insert and old change was attribute.\n\t\t\t\t\t\t\t// See comment above.\n\t\t\t\t\t\t\t//\n\t\t\t\t\t\t\t// This time incoming change is attribute. We need to split incoming change in this case too.\n\t\t\t\t\t\t\t// However this time, the second part of the attribute change needs to be processed further\n\t\t\t\t\t\t\t// because there might be other changes that it collides with.\n\t\t\t\t\t\t\tconst attributePart = {\n\t\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\t\toffset: oldEnd,\n\t\t\t\t\t\t\t\thowMany: incEnd - oldEnd,\n\t\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t\t} as const;\n\n\t\t\t\t\t\t\tthis._handleChange( attributePart, changes );\n\n\t\t\t\t\t\t\tchanges.push( attributePart );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tinc.nodesToHandle = old.offset - inc.offset;\n\t\t\t\t\t\tinc.howMany = inc.nodesToHandle;\n\t\t\t\t\t} else if ( inc.offset >= old.offset && inc.offset < oldEnd ) {\n\t\t\t\t\t\tif ( incEnd > oldEnd ) {\n\t\t\t\t\t\t\tinc.nodesToHandle = incEnd - oldEnd;\n\t\t\t\t\t\t\tinc.offset = oldEnd;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'remove' ) {\n\t\t\t\t\t// This is a case when attribute change \"contains\" remove change.\n\t\t\t\t\t// The attribute change needs to be split into two because changes cannot intersect.\n\t\t\t\t\tif ( inc.offset < old.offset && incEnd > old.offset ) {\n\t\t\t\t\t\tconst attributePart = {\n\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\toffset: old.offset,\n\t\t\t\t\t\t\thowMany: incEnd - old.offset,\n\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t} as const;\n\n\t\t\t\t\t\tthis._handleChange( attributePart, changes );\n\n\t\t\t\t\t\tchanges.push( attributePart );\n\n\t\t\t\t\t\tinc.nodesToHandle = old.offset - inc.offset;\n\t\t\t\t\t\tinc.howMany = inc.nodesToHandle;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'attribute' ) {\n\t\t\t\t\t// There are only two conflicting scenarios possible here:\n\t\t\t\t\tif ( inc.offset >= old.offset && incEnd <= oldEnd ) {\n\t\t\t\t\t\t// `old` change includes `inc` change, or they are the same.\n\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t\tinc.howMany = 0;\n\t\t\t\t\t\tinc.offset = 0;\n\t\t\t\t\t} else if ( inc.offset <= old.offset && incEnd >= oldEnd ) {\n\t\t\t\t\t\t// `inc` change includes `old` change.\n\t\t\t\t\t\told.howMany = 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tinc.howMany = inc.nodesToHandle;\n\t\tdelete inc.nodesToHandle;\n\t}\n\n\t/**\n\t * Returns an object with a single insert change description.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} parent The element in which the change happened.\n\t * @param {Number} offset The offset at which change happened.\n\t * @param {Object} elementSnapshot The snapshot of the removed element a character.\n\t * @returns {Object} The diff item.\n\t */\n\tprivate _getInsertDiff(\n\t\tparent: Element | DocumentFragment,\n\t\toffset: number,\n\t\telementSnapshot: { name: string; attributes: Map<string, unknown> }\n\t): DiffItemInsert & DiffItemInternal {\n\t\treturn {\n\t\t\ttype: 'insert',\n\t\t\tposition: Position._createAt( parent, offset ),\n\t\t\tname: elementSnapshot.name,\n\t\t\tattributes: new Map( elementSnapshot.attributes ),\n\t\t\tlength: 1,\n\t\t\tchangeCount: this._changeCount++\n\t\t};\n\t}\n\n\t/**\n\t * Returns an object with a single remove change description.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} parent The element in which change happened.\n\t * @param {Number} offset The offset at which change happened.\n\t * @param {Object} elementSnapshot The snapshot of the removed element a character.\n\t * @returns {Object} The diff item.\n\t */\n\tprivate _getRemoveDiff(\n\t\tparent: Element | DocumentFragment,\n\t\toffset: number,\n\t\telementSnapshot: { name: string; attributes: Map<string, unknown> }\n\t): DiffItemRemove & DiffItemInternal {\n\t\treturn {\n\t\t\ttype: 'remove',\n\t\t\tposition: Position._createAt( parent, offset ),\n\t\t\tname: elementSnapshot.name,\n\t\t\tattributes: new Map( elementSnapshot.attributes ),\n\t\t\tlength: 1,\n\t\t\tchangeCount: this._changeCount++\n\t\t};\n\t}\n\n\t/**\n\t * Returns an array of objects where each one is a single attribute change description.\n\t *\n\t * @private\n\t * @param {module:engine/model/range~Range} range The range where the change happened.\n\t * @param {Map} oldAttributes A map, map iterator or compatible object that contains attributes before the change.\n\t * @param {Map} newAttributes A map, map iterator or compatible object that contains attributes after the change.\n\t * @returns {Array.<Object>} An array containing one or more diff items.\n\t */\n\tprivate _getAttributesDiff(\n\t\trange: Range,\n\t\toldAttributes: Map<string, unknown>,\n\t\tnewAttributes: Map<string, unknown>\n\t): Array<DiffItemAttribute & DiffItemInternal> {\n\t\t// Results holder.\n\t\tconst diffs: Array<DiffItemAttribute & DiffItemInternal> = [];\n\n\t\t// Clone new attributes as we will be performing changes on this object.\n\t\tnewAttributes = new Map( newAttributes );\n\n\t\t// Look through old attributes.\n\t\tfor ( const [ key, oldValue ] of oldAttributes ) {\n\t\t\t// Check what is the new value of the attribute (or if it was removed).\n\t\t\tconst newValue = newAttributes.has( key ) ? newAttributes.get( key ) : null;\n\n\t\t\t// If values are different (or attribute was removed)...\n\t\t\tif ( newValue !== oldValue ) {\n\t\t\t\t// Add diff item.\n\t\t\t\tdiffs.push( {\n\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\tposition: range.start,\n\t\t\t\t\trange: range.clone(),\n\t\t\t\t\tlength: 1,\n\t\t\t\t\tattributeKey: key,\n\t\t\t\t\tattributeOldValue: oldValue,\n\t\t\t\t\tattributeNewValue: newValue,\n\t\t\t\t\tchangeCount: this._changeCount++\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Prevent returning two diff items for the same change.\n\t\t\tnewAttributes.delete( key );\n\t\t}\n\n\t\t// Look through new attributes that weren't handled above.\n\t\tfor ( const [ key, newValue ] of newAttributes ) {\n\t\t\t// Each of them is a new attribute. Add diff item.\n\t\t\tdiffs.push( {\n\t\t\t\ttype: 'attribute',\n\t\t\t\tposition: range.start,\n\t\t\t\trange: range.clone(),\n\t\t\t\tlength: 1,\n\t\t\t\tattributeKey: key,\n\t\t\t\tattributeOldValue: null,\n\t\t\t\tattributeNewValue: newValue,\n\t\t\t\tchangeCount: this._changeCount++\n\t\t\t} );\n\t\t}\n\n\t\treturn diffs;\n\t}\n\n\t/**\n\t * Checks whether given element or any of its parents is an element that is buffered as an inserted element.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} element Element to check.\n\t * @returns {Boolean}\n\t */\n\tprivate _isInInsertedElement( element: Element | DocumentFragment ): boolean {\n\t\tconst parent = element.parent;\n\n\t\tif ( !parent ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst changes = this._changesInElement.get( parent );\n\t\tconst offset = element.startOffset;\n\n\t\tif ( changes ) {\n\t\t\tfor ( const change of changes ) {\n\t\t\t\tif ( change.type == 'insert' && offset! >= change.offset && offset! < change.offset + change.howMany ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this._isInInsertedElement( parent );\n\t}\n\n\t/**\n\t * Removes deeply all buffered changes that are registered in elements from range specified by `parent`, `offset`\n\t * and `howMany`.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} parent\n\t * @param {Number} offset\n\t * @param {Number} howMany\n\t */\n\tprivate _removeAllNestedChanges( parent: Element | DocumentFragment, offset: number, howMany: number ) {\n\t\tconst range = new Range( Position._createAt( parent, offset ), Position._createAt( parent, offset + howMany ) );\n\n\t\tfor ( const item of range.getItems( { shallow: true } ) ) {\n\t\t\tif ( item.is( 'element' ) ) {\n\t\t\t\tthis._elementSnapshots.delete( item );\n\t\t\t\tthis._changesInElement.delete( item );\n\n\t\t\t\tthis._removeAllNestedChanges( item, 0, item.maxOffset );\n\t\t\t}\n\t\t}\n\t}\n}\n\ninterface ChangeItem {\n\ttype: 'insert' | 'remove' | 'attribute';\n\toffset: number;\n\thowMany: number;\n\tcount: number;\n\tnodesToHandle?: number;\n}\n\n// Returns an array that is a copy of passed child list with the exception that text nodes are split to one or more\n// objects, each representing one character and attributes set on that character.\nfunction _getChildrenSnapshot( children: Iterable<Node> ) {\n\tconst snapshot = [];\n\n\tfor ( const child of children ) {\n\t\tif ( child.is( '$text' ) ) {\n\t\t\tfor ( let i = 0; i < child.data.length; i++ ) {\n\t\t\t\tsnapshot.push( {\n\t\t\t\t\tname: '$text',\n\t\t\t\t\tattributes: new Map( child.getAttributes() )\n\t\t\t\t} );\n\t\t\t}\n\t\t} else {\n\t\t\tsnapshot.push( {\n\t\t\t\tname: ( child as Element ).name,\n\t\t\t\tattributes: new Map( child.getAttributes() )\n\t\t\t} );\n\t\t}\n\t}\n\n\treturn snapshot;\n}\n\n// Generates array of actions for given changes set.\n// It simulates what `diff` function does.\n// Generated actions are:\n// - 'e' for 'equal' - when item at that position did not change,\n// - 'i' for 'insert' - when item at that position was inserted,\n// - 'r' for 'remove' - when item at that position was removed,\n// - 'a' for 'attribute' - when item at that position has it attributes changed.\n//\n// Example (assume that uppercase letters have bold attribute, compare with function code):\n//\n// children before:\tfooBAR\n// children after:\tfoxybAR\n//\n// changes: type: remove, offset: 1, howMany: 1\n//\t\t\ttype: insert, offset: 2, howMany: 2\n//\t\t\ttype: attribute, offset: 4, howMany: 1\n//\n// expected actions: equal (f), remove (o), equal (o), insert (x), insert (y), attribute (b), equal (A), equal (R)\n//\n// steps taken by th script:\n//\n// 1. change = \"type: remove, offset: 1, howMany: 1\"; offset = 0; oldChildrenHandled = 0\n//    1.1 between this change and the beginning is one not-changed node, fill with one equal action, one old child has been handled\n//    1.2 this change removes one node, add one remove action\n//    1.3 change last visited `offset` to 1\n//    1.4 since an old child has been removed, one more old child has been handled\n//    1.5 actions at this point are: equal, remove\n//\n// 2. change = \"type: insert, offset: 2, howMany: 2\"; offset = 1; oldChildrenHandled = 2\n//    2.1 between this change and previous change is one not-changed node, add equal action, another one old children has been handled\n//    2.2 this change inserts two nodes, add two insert actions\n//    2.3 change last visited offset to the end of the inserted range, that is 4\n//    2.4 actions at this point are: equal, remove, equal, insert, insert\n//\n// 3. change = \"type: attribute, offset: 4, howMany: 1\"; offset = 4, oldChildrenHandled = 3\n//    3.1 between this change and previous change are no not-changed nodes\n//    3.2 this change changes one node, add one attribute action\n//    3.3 change last visited `offset` to the end of change range, that is 5\n//    3.4 since an old child has been changed, one more old child has been handled\n//    3.5 actions at this point are: equal, remove, equal, insert, insert, attribute\n//\n// 4. after loop oldChildrenHandled = 4, oldChildrenLength = 6 (fooBAR is 6 characters)\n//    4.1 fill up with two equal actions\n//\n// The result actions are: equal, remove, equal, insert, insert, attribute, equal, equal.\nfunction _generateActionsFromChanges( oldChildrenLength: number, changes: Array<ChangeItem> ) {\n\tconst actions: Array<string> = [];\n\n\tlet offset = 0;\n\tlet oldChildrenHandled = 0;\n\n\t// Go through all buffered changes.\n\tfor ( const change of changes ) {\n\t\t// First, fill \"holes\" between changes with \"equal\" actions.\n\t\tif ( change.offset > offset ) {\n\t\t\tfor ( let i = 0; i < change.offset - offset; i++ ) {\n\t\t\t\tactions.push( 'e' );\n\t\t\t}\n\n\t\t\toldChildrenHandled += change.offset - offset;\n\t\t}\n\n\t\t// Then, fill up actions accordingly to change type.\n\t\tif ( change.type == 'insert' ) {\n\t\t\tfor ( let i = 0; i < change.howMany; i++ ) {\n\t\t\t\tactions.push( 'i' );\n\t\t\t}\n\n\t\t\t// The last handled offset is after inserted range.\n\t\t\toffset = change.offset + change.howMany;\n\t\t} else if ( change.type == 'remove' ) {\n\t\t\tfor ( let i = 0; i < change.howMany; i++ ) {\n\t\t\t\tactions.push( 'r' );\n\t\t\t}\n\n\t\t\t// The last handled offset is at the position where the nodes were removed.\n\t\t\toffset = change.offset;\n\t\t\t// We removed `howMany` old nodes, update `oldChildrenHandled`.\n\t\t\toldChildrenHandled += change.howMany;\n\t\t} else {\n\t\t\tactions.push( ...'a'.repeat( change.howMany ).split( '' ) );\n\n\t\t\t// The last handled offset is at the position after the changed range.\n\t\t\toffset = change.offset + change.howMany;\n\t\t\t// We changed `howMany` old nodes, update `oldChildrenHandled`.\n\t\t\toldChildrenHandled += change.howMany;\n\t\t}\n\t}\n\n\t// Fill \"equal\" actions at the end of actions set. Use `oldChildrenHandled` to see how many children\n\t// has not been changed / removed at the end of their parent.\n\tif ( oldChildrenHandled < oldChildrenLength ) {\n\t\tfor ( let i = 0; i < oldChildrenLength - oldChildrenHandled - offset; i++ ) {\n\t\t\tactions.push( 'e' );\n\t\t}\n\t}\n\n\treturn actions;\n}\n\n// Filter callback for Array.filter that filters out change entries that are in graveyard.\nfunction _changesInGraveyardFilter( entry: DiffItem ) {\n\tconst posInGy = 'position' in entry && entry.position!.root.rootName == '$graveyard';\n\tconst rangeInGy = 'range' in entry && entry.range.root.rootName == '$graveyard';\n\n\treturn !posInGy && !rangeInGy;\n}\n\n/**\n * The single diff item.\n *\n * Could be one of:\n *\n * * {@link module:engine/model/differ~DiffItemInsert `DiffItemInsert`},\n * * {@link module:engine/model/differ~DiffItemRemove `DiffItemRemove`},\n * * {@link module:engine/model/differ~DiffItemAttribute `DiffItemAttribute`}.\n *\n * @interface DiffItem\n */\n\nexport type DiffItem = DiffItemInsert | DiffItemRemove | DiffItemAttribute;\n\n/**\n * The single diff item for inserted nodes.\n *\n * @class DiffItemInsert\n * @implements module:engine/model/differ~DiffItem\n */\n\nexport interface DiffItemInsert {\n\ttype: 'insert';\n\tname: string;\n\tattributes: Map<string, unknown>;\n\tposition: Position;\n\tlength: number;\n}\n\n/**\n * The type of diff item.\n *\n * @member {'insert'} module:engine/model/differ~DiffItemInsert#type\n */\n\n/**\n * The name of the inserted elements or `'$text'` for a text node.\n *\n * @member {String} module:engine/model/differ~DiffItemInsert#name\n */\n\n/**\n * Map of attributes that were set on the item while it was inserted.\n *\n * @member {Map.<String,*>} module:engine/model/differ~DiffItemInsert#attributes\n */\n\n/**\n * The position where the node was inserted.\n *\n * @member {module:engine/model/position~Position} module:engine/model/differ~DiffItemInsert#position\n */\n\n/**\n * The length of an inserted text node. For elements it is always 1 as each inserted element is counted as a one.\n *\n * @member {Number} module:engine/model/differ~DiffItemInsert#length\n */\n\n/**\n * The single diff item for removed nodes.\n *\n * @class DiffItemRemove\n * @implements module:engine/model/differ~DiffItem\n */\n\nexport interface DiffItemRemove {\n\ttype: 'remove';\n\tname: string;\n\tattributes: Map<string, unknown>;\n\tposition: Position;\n\tlength: number;\n}\n\n/**\n * The type of diff item.\n *\n * @member {'remove'} module:engine/model/differ~DiffItemRemove#type\n */\n\n/**\n * The name of the removed element or `'$text'` for a text node.\n *\n * @member {String} module:engine/model/differ~DiffItemRemove#name\n */\n\n/**\n * Map of attributes that were set on the item while it was removed.\n *\n * @member {Map.<String,*>} module:engine/model/differ~DiffItemRemove#attributes\n */\n\n/**\n * The position where the node was removed.\n *\n * @member {module:engine/model/position~Position} module:engine/model/differ~DiffItemRemove#position\n */\n\n/**\n * The length of a removed text node. For elements it is always 1 as each removed element is counted as a one.\n *\n * @member {Number} module:engine/model/differ~DiffItemRemove#length\n */\n\n/**\n * The single diff item for attribute change.\n *\n * @class DiffItemAttribute\n * @implements module:engine/model/differ~DiffItem\n */\n\nexport interface DiffItemAttribute {\n\ttype: 'attribute';\n\tattributeKey: string;\n\tattributeOldValue: unknown;\n\tattributeNewValue: unknown;\n\trange: Range;\n}\n\ninterface DiffItemInternal {\n\tchangeCount?: number;\n\tposition?: Position;\n\tlength?: number;\n}\n\n/**\n * The type of diff item.\n *\n * @member {'attribute'} module:engine/model/differ~DiffItemAttribute#type\n */\n\n/**\n * The name of the changed attribute.\n *\n * @member {String} module:engine/model/differ~DiffItemAttribute#attributeKey\n */\n\n/**\n * An attribute previous value (before change).\n *\n * @member {String} module:engine/model/differ~DiffItemAttribute#attributeOldValue\n */\n\n/**\n * An attribute new value (after change).\n *\n * @member {String} module:engine/model/differ~DiffItemAttribute#attributeNewValue\n */\n\n/**\n * The range where the change happened.\n *\n * @member {module:engine/model/range~Range} module:engine/model/differ~DiffItemAttribute#range\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type Operation from './operation/operation';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * @module engine/model/history\n */\n\n/**\n * `History` keeps the track of all the operations applied to the {@link module:engine/model/document~Document document}.\n */\nexport default class History {\n\tprivate _operations: Array<Operation>;\n\tprivate _undoPairs: Map<Operation, Operation>;\n\tprivate _undoneOperations: Set<Operation>;\n\tprivate _baseVersionToOperationIndex: Map<number, number>;\n\tprivate _version: number;\n\tprivate _gaps: Map<number, number>;\n\n\t/**\n\t * Creates an empty History instance.\n\t */\n\tconstructor() {\n\t\t/**\n\t\t * Operations added to the history.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @type {Array.<module:engine/model/operation/operation~Operation>}\n\t\t */\n\t\tthis._operations = [];\n\n\t\t/**\n\t\t * Holds an information which {@link module:engine/model/operation/operation~Operation operation} undoes which\n\t\t * {@link module:engine/model/operation/operation~Operation operation}.\n\t\t *\n\t\t * Keys of the map are \"undoing operations\", that is operations that undone some other operations. For each key, the\n\t\t * value is an operation that has been undone by the \"undoing operation\".\n\t\t *\n\t\t * @private\n\t\t * @member {Map} module:engine/model/history~History#_undoPairs\n\t\t */\n\t\tthis._undoPairs = new Map();\n\n\t\t/**\n\t\t * Holds all undone operations.\n\t\t *\n\t\t * @private\n\t\t * @type {Set.<module:engine/model/operation/operation~Operation>}\n\t\t */\n\t\tthis._undoneOperations = new Set();\n\n\t\t/**\n\t\t * A map that allows retrieving the operations fast based on the given base version.\n\t\t *\n\t\t * @private\n\t\t * @type Map.<Number,Number>\n\t\t */\n\t\tthis._baseVersionToOperationIndex = new Map();\n\n\t\t/**\n\t\t * The history version.\n\t\t *\n\t\t * @private\n\t\t * @type {Number}\n\t\t */\n\t\tthis._version = 0;\n\n\t\t/**\n\t\t * The gap pairs kept in the <from,to> format.\n\t\t *\n\t\t * Anytime the `history.version` is set to a version larger than `history.version + 1`,\n\t\t * a new <lastHistoryVersion, newHistoryVersion> entry is added to the map.\n\t\t *\n\t\t * @private\n\t\t * @type Map.<number,number>\n\t\t */\n\t\tthis._gaps = new Map();\n\t}\n\n\t/**\n\t * The version of the last operation in the history.\n\t *\n\t * The history version is incremented automatically when a new operation is added to the history.\n\t * Setting the version manually should be done only in rare circumstances when a gap is planned\n\t * between history versions. When doing so, a gap will be created and the history will accept adding\n\t * an operation with base version equal to the new history version.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get version(): number {\n\t\treturn this._version;\n\t}\n\n\tpublic set version( version: number ) {\n\t\t// Store a gap if there are some operations already in the history and the\n\t\t// new version does not increment the latest one.\n\t\tif ( this._operations.length && version > this._version + 1 ) {\n\t\t\tthis._gaps.set( this._version, version );\n\t\t}\n\n\t\tthis._version = version;\n\t}\n\n\t/**\n\t * The last history operation.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/operation/operation~Operation|undefined}\n\t */\n\tpublic get lastOperation(): Operation | undefined {\n\t\treturn this._operations[ this._operations.length - 1 ];\n\t}\n\n\t/**\n\t * Adds an operation to the history and increments the history version.\n\t *\n\t * The operation's base version should be equal to the history version. Otherwise an error is thrown.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operation Operation to add.\n\t */\n\tpublic addOperation( operation: Operation ): void {\n\t\tif ( operation.baseVersion !== this.version ) {\n\t\t\t/**\n\t\t\t * Only operations with matching versions can be added to the history.\n\t\t\t *\n\t\t\t * @error model-document-history-addoperation-incorrect-version\n\t\t\t * @param {Object} errorData The operation and the current document history version.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-document-history-addoperation-incorrect-version', this, {\n\t\t\t\toperation,\n\t\t\t\thistoryVersion: this.version\n\t\t\t} );\n\t\t}\n\n\t\tthis._operations.push( operation );\n\t\tthis._version++;\n\n\t\tthis._baseVersionToOperationIndex.set( operation.baseVersion, this._operations.length - 1 );\n\t}\n\n\t/**\n\t * Returns operations from the given range of operation base versions that were added to the history.\n\t *\n\t * Note that there may be gaps in operations base versions.\n\t *\n\t * @param {Number} [fromBaseVersion] Base version from which operations should be returned (inclusive).\n\t * @param {Number} [toBaseVersion] Base version up to which operations should be returned (exclusive).\n     * @returns {Array.<module:engine/model/operation/operation~Operation>} History operations for the given range, in chronological order.\n\t */\n\tpublic getOperations( fromBaseVersion: number, toBaseVersion: number = this.version ): Array<Operation> {\n\t\t// When there is no operation in the history, return an empty array.\n\t\t// After that we can be sure that `firstOperation`, `lastOperation` are not nullish.\n\t\tif ( !this._operations.length ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tconst firstOperation = this._operations[ 0 ];\n\n\t\tif ( fromBaseVersion === undefined ) {\n\t\t\tfromBaseVersion = firstOperation.baseVersion!;\n\t\t}\n\n\t\t// Change exclusive `toBaseVersion` to inclusive, so it will refer to the actual index.\n\t\t// Thanks to that mapping from base versions to operation indexes are possible.\n\t\tlet inclusiveTo = toBaseVersion - 1;\n\n\t\t// Check if \"from\" or \"to\" point to a gap between versions.\n\t\t// If yes, then change the incorrect position to the proper side of the gap.\n\t\t// Thanks to it, it will be possible to get index of the operation.\n\t\tfor ( const [ gapFrom, gapTo ] of this._gaps ) {\n\t\t\tif ( fromBaseVersion > gapFrom && fromBaseVersion < gapTo ) {\n\t\t\t\tfromBaseVersion = gapTo;\n\t\t\t}\n\n\t\t\tif ( inclusiveTo > gapFrom && inclusiveTo < gapTo ) {\n\t\t\t\tinclusiveTo = gapFrom - 1;\n\t\t\t}\n\t\t}\n\n\t\t// If the whole range is outside of the operation versions, then return an empty array.\n\t\tif ( inclusiveTo < firstOperation.baseVersion! || fromBaseVersion > this.lastOperation!.baseVersion! ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tlet fromIndex = this._baseVersionToOperationIndex.get( fromBaseVersion );\n\n\t\t// If the range starts before the first operation, then use the first operation as the range's start.\n\t\tif ( fromIndex === undefined ) {\n\t\t\tfromIndex = 0;\n\t\t}\n\n\t\tlet toIndex = this._baseVersionToOperationIndex.get( inclusiveTo );\n\n\t\t// If the range ends after the last operation, then use the last operation as the range's end.\n\t\tif ( toIndex === undefined ) {\n\t\t\ttoIndex = this._operations.length - 1;\n\t\t}\n\n\t\t// Return the part of the history operations based on the calculated start index and end index.\n\t\treturn this._operations.slice(\n\t\t\tfromIndex,\n\n\t\t\t// The `toIndex` should be included in the returned operations, so add `1`.\n\t\t\ttoIndex + 1\n\t\t);\n\t}\n\n\t/**\n\t * Returns operation from the history that bases on given `baseVersion`.\n\t *\n\t * @param {Number} baseVersion Base version of the operation to get.\n\t * @returns {module:engine/model/operation/operation~Operation|undefined} Operation with given base version or `undefined` if\n\t * there is no such operation in history.\n\t */\n\tpublic getOperation( baseVersion: number ): Operation | undefined {\n\t\tconst operationIndex = this._baseVersionToOperationIndex.get( baseVersion );\n\n\t\tif ( operationIndex === undefined ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn this._operations[ operationIndex ];\n\t}\n\n\t/**\n\t * Marks in history that one operation is an operation that is undoing the other operation. By marking operation this way,\n\t * history is keeping more context information about operations, which helps in operational transformation.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} undoneOperation Operation which is undone by `undoingOperation`.\n\t * @param {module:engine/model/operation/operation~Operation} undoingOperation Operation which undoes `undoneOperation`.\n\t */\n\tpublic setOperationAsUndone( undoneOperation: Operation, undoingOperation: Operation ): void {\n\t\tthis._undoPairs.set( undoingOperation, undoneOperation );\n\t\tthis._undoneOperations.add( undoneOperation );\n\t}\n\n\t/**\n\t * Checks whether given `operation` is undoing any other operation.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operation Operation to check.\n\t * @returns {Boolean} `true` if given `operation` is undoing any other operation, `false` otherwise.\n\t */\n\tpublic isUndoingOperation( operation: Operation ): boolean {\n\t\treturn this._undoPairs.has( operation );\n\t}\n\n\t/**\n\t * Checks whether given `operation` has been undone by any other operation.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operation Operation to check.\n\t * @returns {Boolean} `true` if given `operation` has been undone any other operation, `false` otherwise.\n\t */\n\tpublic isUndoneOperation( operation: Operation ): boolean {\n\t\treturn this._undoneOperations.has( operation );\n\t}\n\n\t/**\n\t * For given `undoingOperation`, returns the operation which has been undone by it.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} undoingOperation\n\t * @returns {module:engine/model/operation/operation~Operation|undefined} Operation that has been undone by given\n\t * `undoingOperation` or `undefined` if given `undoingOperation` is not undoing any other operation.\n\t */\n\tpublic getUndoneOperation( undoingOperation: Operation ): Operation | undefined {\n\t\treturn this._undoPairs.get( undoingOperation );\n\t}\n\n\t/**\n\t * Resets the history of operations.\n\t */\n\tpublic reset(): void {\n\t\tthis._version = 0;\n\t\tthis._undoPairs = new Map();\n\t\tthis._operations = [];\n\t\tthis._undoneOperations = new Set();\n\t\tthis._gaps = new Map();\n\t\tthis._baseVersionToOperationIndex = new Map();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/rootelement\n */\n\nimport Element from './element';\n\nimport type Document from './document';\n\n/**\n * Type of {@link module:engine/model/element~Element} that is a root of a model tree.\n * @extends module:engine/model/element~Element\n */\nexport default class RootElement extends Element {\n\tpublic override readonly rootName: string;\n\n\tprivate readonly _document: Document;\n\n\t/**\n\t * Creates root element.\n\t *\n\t * @param {module:engine/model/document~Document} document Document that is an owner of this root.\n\t * @param {String} name Node name.\n\t * @param {String} [rootName='main'] Unique root name used to identify this root\n\t * element by {@link module:engine/model/document~Document}.\n\t */\n\tconstructor( document: Document, name: string, rootName: string = 'main' ) {\n\t\tsuper( name );\n\n\t\t/**\n\t\t * Document that is an owner of this root.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/document~Document}\n\t\t */\n\t\tthis._document = document;\n\n\t\t/**\n\t\t * Unique root name used to identify this root element by {@link module:engine/model/document~Document}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.rootName = rootName;\n\t}\n\n\t/**\n\t * {@link module:engine/model/document~Document Document} that owns this root element.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/document~Document|null}\n\t */\n\tpublic override get document(): Document {\n\t\treturn this._document;\n\t}\n\n\t/**\n\t * Converts `RootElement` instance to `String` containing it's name.\n\t *\n\t * @returns {String} `RootElement` instance converted to `String`.\n\t */\n\tpublic override toJSON(): unknown {\n\t\treturn this.rootName;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn this.rootName;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelRootElement: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\trootElement.is( 'rootElement' ); // -> true\n *\t\trootElement.is( 'element' ); // -> true\n *\t\trootElement.is( 'node' ); // -> true\n *\t\trootElement.is( 'model:rootElement' ); // -> true\n *\t\trootElement.is( 'model:element' ); // -> true\n *\t\trootElement.is( 'model:node' ); // -> true\n *\n *\t\trootElement.is( 'view:element' ); // -> false\n *\t\trootElement.is( 'documentFragment' ); // -> false\n *\n * Assuming that the object being checked is an element, you can also check its\n * {@link module:engine/model/element~Element#name name}:\n *\n *\t\trootElement.is( 'rootElement', '$root' ); // -> same as above\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type Type to check.\n * @param {String} [name] Element name.\n * @returns {Boolean}\n */\nRootElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'rootElement' || type === 'model:rootElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'model:element' ||\n\t\t\ttype === 'node' || type === 'model:node';\n\t}\n\n\treturn name === this.name && (\n\t\ttype === 'rootElement' || type === 'model:rootElement' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype === 'element' || type === 'model:element'\n\t);\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/document\n */\n\nimport Differ from './differ';\nimport DocumentSelection from './documentselection';\nimport History from './history';\nimport RootElement from './rootelement';\n\nimport type { SelectionChangeEvent } from './selection';\nimport type { default as Model, ModelApplyOperationEvent } from './model';\nimport type { MarkerCollectionUpdateEvent, MarkerCollectionChangeEvent } from './markercollection';\nimport type Batch from './batch';\nimport type Position from './position';\nimport type Range from './range';\nimport type Writer from './writer';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tEmitterMixin,\n\tisInsideSurrogatePair,\n\tisInsideCombinedSymbol\n} from '@ckeditor/ckeditor5-utils';\n\nimport { clone } from 'lodash-es';\n\n// @if CK_DEBUG_ENGINE // const { logDocument } = require( '../dev-utils/utils' );\n\nconst graveyardName = '$graveyard';\n\n/**\n * Data model's document. It contains the model's structure, its selection and the history of changes.\n *\n * Read more about working with the model in\n * {@glink framework/guides/architecture/editing-engine#model introduction to the the editing engine's architecture}.\n *\n * Usually, the document contains just one {@link module:engine/model/document~Document#roots root element}, so\n * you can retrieve it by just calling {@link module:engine/model/document~Document#getRoot} without specifying its name:\n *\n *\t\tmodel.document.getRoot(); // -> returns the main root\n *\n * However, the document may contain multiple roots – e.g. when the editor has multiple editable areas\n * (e.g. a title and a body of a message).\n *\n * @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default class Document extends EmitterMixin() {\n\tpublic readonly model: Model;\n\tpublic readonly history: History;\n\tpublic readonly selection: DocumentSelection;\n\tpublic readonly roots: Collection<RootElement>;\n\tpublic readonly differ: Differ;\n\n\tprivate readonly _postFixers: Set<( writer: Writer ) => boolean>;\n\tprivate _hasSelectionChangedFromTheLastChangeBlock: boolean;\n\n\t/**\n\t * Creates an empty document instance with no {@link #roots} (other than\n\t * the {@link #graveyard graveyard root}).\n\t */\n\tconstructor( model: Model ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The {@link module:engine/model/model~Model model} that the document is a part of.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/model/model~Model}\n\t\t */\n\t\tthis.model = model;\n\n\t\t/**\n\t\t * The document's history.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/model/history~History}\n\t\t */\n\t\tthis.history = new History();\n\n\t\t/**\n\t\t * The selection in this document.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/model/documentselection~DocumentSelection}\n\t\t */\n\t\tthis.selection = new DocumentSelection( this );\n\n\t\t/**\n\t\t * A list of roots that are owned and managed by this document. Use {@link #createRoot} and\n\t\t * {@link #getRoot} to manipulate it.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:utils/collection~Collection}\n\t\t */\n\t\tthis.roots = new Collection( { idProperty: 'rootName' } );\n\n\t\t/**\n\t\t * The model differ object. Its role is to buffer changes done on the model document and then calculate a diff of those changes.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/model/differ~Differ}\n\t\t */\n\t\tthis.differ = new Differ( model.markers );\n\n\t\t/**\n\t\t * Post-fixer callbacks registered to the model document.\n\t\t *\n\t\t * @private\n\t\t * @type {Set.<Function>}\n\t\t */\n\t\tthis._postFixers = new Set();\n\n\t\t/**\n\t\t * A boolean indicates whether the selection has changed until\n\t\t *\n\t\t * @private\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._hasSelectionChangedFromTheLastChangeBlock = false;\n\n\t\t// Graveyard tree root. Document always have a graveyard root, which stores removed nodes.\n\t\tthis.createRoot( '$root', graveyardName );\n\n\t\t// Then, still before an operation is applied on model, buffer the change in differ.\n\t\tthis.listenTo<ModelApplyOperationEvent>( model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( operation.isDocumentOperation ) {\n\t\t\t\tthis.differ.bufferOperation( operation );\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// After the operation is applied, bump document's version and add the operation to the history.\n\t\tthis.listenTo<ModelApplyOperationEvent>( model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( operation.isDocumentOperation ) {\n\t\t\t\tthis.history.addOperation( operation );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\t// Listen to selection changes. If selection changed, mark it.\n\t\tthis.listenTo<SelectionChangeEvent>( this.selection, 'change', () => {\n\t\t\tthis._hasSelectionChangedFromTheLastChangeBlock = true;\n\t\t} );\n\n\t\t// Buffer marker changes.\n\t\t// This is not covered in buffering operations because markers may change outside of them (when they\n\t\t// are modified using `model.markers` collection, not through `MarkerOperation`).\n\t\tthis.listenTo<MarkerCollectionUpdateEvent>( model.markers, 'update', ( evt, marker, oldRange, newRange, oldMarkerData ) => {\n\t\t\t// Copy the `newRange` to the new marker data as during the marker removal the range is not updated.\n\t\t\tconst newMarkerData = { ...marker.getData(), range: newRange };\n\n\t\t\t// Whenever marker is updated, buffer that change.\n\t\t\tthis.differ.bufferMarkerChange( marker.name, oldMarkerData, newMarkerData );\n\n\t\t\tif ( oldRange === null ) {\n\t\t\t\t// If this is a new marker, add a listener that will buffer change whenever marker changes.\n\t\t\t\tmarker.on<MarkerCollectionChangeEvent>( 'change', ( evt, oldRange ) => {\n\t\t\t\t\tconst markerData = marker.getData();\n\n\t\t\t\t\tthis.differ.bufferMarkerChange(\n\t\t\t\t\t\tmarker.name,\n\t\t\t\t\t\t{ ...markerData, range: oldRange },\n\t\t\t\t\t\tmarkerData\n\t\t\t\t\t);\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * The document version. Every applied operation increases the version number. It is used to\n\t * ensure that operations are applied on a proper document version.\n\t *\n\t * This property is equal to {@link module:engine/model/history~History#version `model.Document#history#version`}.\n\t *\n\t * If the {@link module:engine/model/operation/operation~Operation#baseVersion base version} does not match the document version,\n\t * a {@link module:utils/ckeditorerror~CKEditorError model-document-applyoperation-wrong-version} error is thrown.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get version(): number {\n\t\treturn this.history.version;\n\t}\n\n\tpublic set version( version: number ) {\n\t\tthis.history.version = version;\n\t}\n\n\t/**\n\t * The graveyard tree root. A document always has a graveyard root that stores removed nodes.\n\t *\n\t * @readonly\n\t * @member {module:engine/model/rootelement~RootElement}\n\t */\n\tpublic get graveyard(): RootElement {\n\t\treturn this.getRoot( graveyardName )!;\n\t}\n\n\t/**\n\t * Creates a new root.\n\t *\n\t * @param {String} [elementName='$root'] The element name. Defaults to `'$root'` which also has some basic schema defined\n\t * (`$block`s are allowed inside the `$root`). Make sure to define a proper schema if you use a different name.\n\t * @param {String} [rootName='main'] A unique root name.\n\t * @returns {module:engine/model/rootelement~RootElement} The created root.\n\t */\n\tpublic createRoot( elementName: string = '$root', rootName: string = 'main' ): RootElement {\n\t\tif ( this.roots.get( rootName ) ) {\n\t\t\t/**\n\t\t\t * A root with the specified name already exists.\n\t\t\t *\n\t\t\t * @error model-document-createroot-name-exists\n\t\t\t * @param {module:engine/model/document~Document} doc\n\t\t\t * @param {String} name\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-document-createroot-name-exists', this, { name: rootName } );\n\t\t}\n\n\t\tconst root = new RootElement( this, elementName, rootName );\n\t\tthis.roots.add( root );\n\n\t\treturn root;\n\t}\n\n\t/**\n\t * Removes all event listeners set by the document instance.\n\t */\n\tpublic destroy(): void {\n\t\tthis.selection.destroy();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Returns a root by its name.\n\t *\n\t * @param {String} [name='main'] A unique root name.\n\t * @returns {module:engine/model/rootelement~RootElement|null} The root registered under a given name or `null` when\n\t * there is no root with the given name.\n\t */\n\tpublic getRoot( name: string = 'main' ): RootElement | null {\n\t\treturn this.roots.get( name );\n\t}\n\n\t/**\n\t * Returns an array with names of all roots (without the {@link #graveyard}) added to the document.\n\t *\n\t * @returns {Array.<String>} Roots names.\n\t */\n\tpublic getRootNames(): Array<string> {\n\t\treturn Array.from( this.roots, root => root.rootName ).filter( name => name != graveyardName );\n\t}\n\n\t/**\n\t * Used to register a post-fixer callback. A post-fixer mechanism guarantees that the features\n\t * will operate on a correct model state.\n\t *\n\t * An execution of a feature may lead to an incorrect document tree state. The callbacks are used to fix the document tree after\n\t * it has changed. Post-fixers are fired just after all changes from the outermost change block were applied but\n\t * before the {@link module:engine/model/document~Document#event:change change event} is fired. If a post-fixer callback made\n\t * a change, it should return `true`. When this happens, all post-fixers are fired again to check if something else should\n\t * not be fixed in the new document tree state.\n\t *\n\t * As a parameter, a post-fixer callback receives a {@link module:engine/model/writer~Writer writer} instance connected with the\n\t * executed changes block. Thanks to that, all changes done by the callback will be added to the same\n\t * {@link module:engine/model/batch~Batch batch} (and undo step) as the original changes. This makes post-fixer changes transparent\n\t * for the user.\n\t *\n\t * An example of a post-fixer is a callback that checks if all the data were removed from the editor. If so, the\n\t * callback should add an empty paragraph so that the editor is never empty:\n\t *\n\t *\t\tdocument.registerPostFixer( writer => {\n\t *\t\t\tconst changes = document.differ.getChanges();\n\t *\n\t *\t\t\t// Check if the changes lead to an empty root in the editor.\n\t *\t\t\tfor ( const entry of changes ) {\n\t *\t\t\t\tif ( entry.type == 'remove' && entry.position.root.isEmpty ) {\n\t *\t\t\t\t\twriter.insertElement( 'paragraph', entry.position.root, 0 );\n\t *\n\t *\t\t\t\t\t// It is fine to return early, even if multiple roots would need to be fixed.\n\t *\t\t\t\t\t// All post-fixers will be fired again, so if there are more empty roots, those will be fixed, too.\n\t *\t\t\t\t\treturn true;\n\t *\t\t\t\t}\n\t *\t\t\t}\n\t *\n\t *\t\t\treturn false;\n\t *\t\t} );\n\t *\n\t * @param {Function} postFixer\n\t */\n\tpublic registerPostFixer( postFixer: ( writer: Writer ) => boolean ): void {\n\t\tthis._postFixers.add( postFixer );\n\t}\n\n\t/**\n\t * A custom `toJSON()` method to solve child-parent circular dependencies.\n\t *\n\t * @returns {Object} A clone of this object with the document property changed to a string.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json: any = clone( this );\n\n\t\t// Due to circular references we need to remove parent reference.\n\t\tjson.selection = '[engine.model.DocumentSelection]';\n\t\tjson.model = '[engine.model.Model]';\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Check if there were any changes done on document, and if so, call post-fixers,\n\t * fire `change` event for features and conversion and then reset the differ.\n\t * Fire `change:data` event when at least one operation or buffered marker changes the data.\n\t *\n\t * @internal\n\t * @protected\n\t * @fires change\n\t * @fires change:data\n\t * @param {module:engine/model/writer~Writer} writer The writer on which post-fixers will be called.\n\t */\n\tpublic _handleChangeBlock( writer: Writer ): void {\n\t\tif ( this._hasDocumentChangedFromTheLastChangeBlock() ) {\n\t\t\tthis._callPostFixers( writer );\n\n\t\t\t// Refresh selection attributes according to the final position in the model after the change.\n\t\t\tthis.selection.refresh();\n\n\t\t\tif ( this.differ.hasDataChanges() ) {\n\t\t\t\tthis.fire<DocumentChangeEvent>( 'change:data', writer.batch );\n\t\t\t} else {\n\t\t\t\tthis.fire<DocumentChangeEvent>( 'change', writer.batch );\n\t\t\t}\n\n\t\t\t// Theoretically, it is not necessary to refresh selection after change event because\n\t\t\t// post-fixers are the last who should change the model, but just in case...\n\t\t\tthis.selection.refresh();\n\n\t\t\tthis.differ.reset();\n\t\t}\n\n\t\tthis._hasSelectionChangedFromTheLastChangeBlock = false;\n\t}\n\n\t/**\n\t * Returns whether there is a buffered change or if the selection has changed from the last\n\t * {@link module:engine/model/model~Model#enqueueChange `enqueueChange()` block}\n\t * or {@link module:engine/model/model~Model#change `change()` block}.\n\t *\n\t * @protected\n\t * @returns {Boolean} Returns `true` if document has changed from the last `change()` or `enqueueChange()` block.\n\t */\n\tprotected _hasDocumentChangedFromTheLastChangeBlock(): boolean {\n\t\treturn !this.differ.isEmpty || this._hasSelectionChangedFromTheLastChangeBlock;\n\t}\n\n\t/**\n\t * Returns the default root for this document which is either the first root that was added to the document using\n\t * {@link #createRoot} or the {@link #graveyard graveyard root} if no other roots were created.\n\t *\n\t * @protected\n\t * @returns {module:engine/model/rootelement~RootElement} The default root for this document.\n\t */\n\tprotected _getDefaultRoot(): RootElement {\n\t\tfor ( const root of this.roots ) {\n\t\t\tif ( root !== this.graveyard ) {\n\t\t\t\treturn root;\n\t\t\t}\n\t\t}\n\n\t\treturn this.graveyard;\n\t}\n\n\t/**\n\t * Returns the default range for this selection. The default range is a collapsed range that starts and ends\n\t * at the beginning of this selection's document {@link #_getDefaultRoot default root}.\n\t *\n\t * @internal\n\t * @protected\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic _getDefaultRange(): Range {\n\t\tconst defaultRoot = this._getDefaultRoot();\n\t\tconst model = this.model;\n\t\tconst schema = model.schema;\n\n\t\t// Find the first position where the selection can be put.\n\t\tconst position = model.createPositionFromPath( defaultRoot, [ 0 ] );\n\t\tconst nearestRange = schema.getNearestSelectionRange( position );\n\n\t\t// If valid selection range is not found - return range collapsed at the beginning of the root.\n\t\treturn nearestRange || model.createRange( position );\n\t}\n\n\t/**\n\t * Checks whether a given {@link module:engine/model/range~Range range} is a valid range for\n\t * the {@link #selection document's selection}.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/range~Range} range A range to check.\n\t * @returns {Boolean} `true` if `range` is valid, `false` otherwise.\n\t */\n\tpublic _validateSelectionRange( range: Range ): boolean {\n\t\treturn validateTextNodePosition( range.start ) && validateTextNodePosition( range.end );\n\t}\n\n\t/**\n\t * Performs post-fixer loops. Executes post-fixer callbacks as long as none of them has done any changes to the model.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer The writer on which post-fixer callbacks will be called.\n\t */\n\tprivate _callPostFixers( writer: Writer ) {\n\t\tlet wasFixed = false;\n\n\t\tdo {\n\t\t\tfor ( const callback of this._postFixers ) {\n\t\t\t\t// Ensure selection attributes are up to date before each post-fixer.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/1673.\n\t\t\t\t//\n\t\t\t\t// It might be good to refresh the selection after each operation but at the moment it leads\n\t\t\t\t// to losing attributes for composition or and spell checking\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-typing/issues/188\n\t\t\t\tthis.selection.refresh();\n\n\t\t\t\twasFixed = callback( writer );\n\n\t\t\t\tif ( wasFixed ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} while ( wasFixed );\n\t}\n\n\t/**\n\t * Fired after each {@link module:engine/model/model~Model#enqueueChange `enqueueChange()` block} or the outermost\n\t * {@link module:engine/model/model~Model#change `change()` block} was executed and the document was changed\n\t * during that block's execution.\n\t *\n\t * The changes which this event will cover include:\n\t *\n\t * * document structure changes,\n\t * * selection changes,\n\t * * marker changes.\n\t *\n\t * If you want to be notified about all these changes, then simply listen to this event like this:\n\t *\n\t *\t\tmodel.document.on( 'change', () => {\n\t *\t\t\tconsole.log( 'The document has changed!' );\n\t *\t\t} );\n\t *\n\t * If, however, you only want to be notified about the data changes, then use the\n\t * {@link module:engine/model/document~Document#event:change:data change:data} event,\n\t * which is fired for document structure changes and marker changes (which affects the data).\n\t *\n\t *\t\tmodel.document.on( 'change:data', () => {\n\t *\t\t\tconsole.log( 'The data has changed!' );\n\t *\t\t} );\n\t *\n\t * @event change\n\t * @param {module:engine/model/batch~Batch} batch The batch that was used in the executed changes block.\n\t */\n\n\t/**\n\t * It is a narrower version of the {@link #event:change} event. It is fired for changes which\n\t * affect the editor data. This is:\n\t *\n\t * * document structure changes,\n\t * * marker changes (which affects the data).\n\t *\n\t * If you want to be notified about the data changes, then listen to this event:\n\t *\n\t *\t\tmodel.document.on( 'change:data', () => {\n\t *\t\t\tconsole.log( 'The data has changed!' );\n\t *\t\t} );\n\t *\n\t * If you would like to listen to all document changes, then check out the\n\t * {@link module:engine/model/document~Document#event:change change} event.\n\t *\n\t * @event change:data\n\t * @param {module:engine/model/batch~Batch} batch The batch that was used in the executed changes block.\n\t */\n\n\t// @if CK_DEBUG_ENGINE // log( version = null ) {\n\t// @if CK_DEBUG_ENGINE // \tversion = version === null ? this.version : version;\n\t// @if CK_DEBUG_ENGINE // \tlogDocument( this, version );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\nexport type DocumentChangeEvent = {\n\tname: 'change' | 'change:data';\n\targs: [ batch: Batch ];\n};\n\n// Checks whether given range boundary position is valid for document selection, meaning that is not between\n// unicode surrogate pairs or base character and combining marks.\nfunction validateTextNodePosition( rangeBoundary: Position ) {\n\tconst textNode = rangeBoundary.textNode;\n\n\tif ( textNode ) {\n\t\tconst data = textNode.data;\n\t\tconst offset = rangeBoundary.offset - textNode.startOffset!;\n\n\t\treturn !isInsideSurrogatePair( data, offset ) && !isInsideCombinedSymbol( data, offset );\n\t}\n\n\treturn true;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/markercollection\n */\n\nimport TypeCheckable from './typecheckable';\nimport LiveRange, { type LiveRangeChangeEvent } from './liverange';\n\nimport type Position from './position';\nimport type Range from './range';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The collection of all {@link module:engine/model/markercollection~Marker markers} attached to the document.\n * It lets you {@link module:engine/model/markercollection~MarkerCollection#get get} markers or track them using\n * {@link module:engine/model/markercollection~MarkerCollection#event:update} event.\n *\n * To create, change or remove makers use {@link module:engine/model/writer~Writer model writers'} methods:\n * {@link module:engine/model/writer~Writer#addMarker} or {@link module:engine/model/writer~Writer#removeMarker}. Since\n * the writer is the only proper way to change the data model it is not possible to change markers directly using this\n * collection. All markers created by the writer will be automatically added to this collection.\n *\n * By default there is one marker collection available as {@link module:engine/model/model~Model#markers model property}.\n *\n * @see module:engine/model/markercollection~Marker\n */\nexport default class MarkerCollection extends EmitterMixin() implements Iterable<Marker> {\n\tprivate _markers: Map<string, Marker>;\n\n\t/**\n\t * Creates a markers collection.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\t/**\n\t\t * Stores {@link ~Marker markers} added to the collection.\n\t\t *\n\t\t * @private\n\t\t * @member {Map} #_markers\n\t\t */\n\t\tthis._markers = new Map();\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all {@link ~Marker markers} added to the collection.\n\t *\n\t * @returns {Iterator}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<Marker> {\n\t\treturn this._markers.values();\n\t}\n\n\t/**\n\t * Checks if given {@link ~Marker marker} or marker name is in the collection.\n\t *\n\t * @param {String|module:engine/model/markercollection~Marker} markerOrName Name of marker or marker instance to check.\n\t * @returns {Boolean} `true` if marker is in the collection, `false` otherwise.\n\t */\n\tpublic has( markerOrName: string | Marker ): boolean {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\n\t\treturn this._markers.has( markerName );\n\t}\n\n\t/**\n\t * Returns {@link ~Marker marker} with given `markerName`.\n\t *\n\t * @param {String} markerName Name of marker to get.\n\t * @returns {module:engine/model/markercollection~Marker|null} Marker with given name or `null` if such marker was\n\t * not added to the collection.\n\t */\n\tpublic get( markerName: string ): Marker | null {\n\t\treturn this._markers.get( markerName ) || null;\n\t}\n\n\t/**\n\t * Creates and adds a {@link ~Marker marker} to the `MarkerCollection` with given name on given\n\t * {@link module:engine/model/range~Range range}.\n\t *\n\t * If `MarkerCollection` already had a marker with given name (or {@link ~Marker marker} was passed), the marker in\n\t * collection is updated and {@link module:engine/model/markercollection~MarkerCollection#event:update} event is fired\n\t * but only if there was a change (marker range or {@link module:engine/model/markercollection~Marker#managedUsingOperations}\n\t * flag has changed.\n\t *\n\t * @internal\n\t * @protected\n\t * @fires module:engine/model/markercollection~MarkerCollection#event:update\n\t * @param {String|module:engine/model/markercollection~Marker} markerOrName Name of marker to set or marker instance to update.\n\t * @param {module:engine/model/range~Range} range Marker range.\n\t * @param {Boolean} [managedUsingOperations=false] Specifies whether the marker is managed using operations.\n\t * @param {Boolean} [affectsData=false] Specifies whether the marker affects the data produced by the data pipeline\n\t * (is persisted in the editor's data).\n\t * @returns {module:engine/model/markercollection~Marker} `Marker` instance which was added or updated.\n\t */\n\tpublic _set(\n\t\tmarkerOrName: string | Marker,\n\t\trange: Range,\n\t\tmanagedUsingOperations: boolean = false,\n\t\taffectsData: boolean = false\n\t): Marker {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\n\t\tif ( markerName.includes( ',' ) ) {\n\t\t\t/**\n\t\t\t * Marker name cannot contain the \",\" character.\n\t\t\t *\n\t\t\t * @error markercollection-incorrect-marker-name\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'markercollection-incorrect-marker-name', this );\n\t\t}\n\n\t\tconst oldMarker = this._markers.get( markerName );\n\n\t\tif ( oldMarker ) {\n\t\t\tconst oldMarkerData = oldMarker.getData();\n\n\t\t\tconst oldRange = oldMarker.getRange();\n\t\t\tlet hasChanged = false;\n\n\t\t\tif ( !oldRange.isEqual( range ) ) {\n\t\t\t\toldMarker._attachLiveRange( LiveRange.fromRange( range ) );\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tif ( managedUsingOperations != oldMarker.managedUsingOperations ) {\n\t\t\t\toldMarker._managedUsingOperations = managedUsingOperations;\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tif ( typeof affectsData === 'boolean' && affectsData != oldMarker.affectsData ) {\n\t\t\t\toldMarker._affectsData = affectsData;\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tif ( hasChanged ) {\n\t\t\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, oldMarker, oldRange, range, oldMarkerData );\n\t\t\t}\n\n\t\t\treturn oldMarker;\n\t\t}\n\n\t\tconst liveRange = LiveRange.fromRange( range );\n\t\tconst marker = new Marker( markerName, liveRange, managedUsingOperations, affectsData );\n\n\t\tthis._markers.set( markerName, marker );\n\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, marker, null, range, { ...marker.getData(), range: null } );\n\n\t\treturn marker;\n\t}\n\n\t/**\n\t * Removes given {@link ~Marker marker} or a marker with given name from the `MarkerCollection`.\n\t *\n\t * @internal\n\t * @protected\n\t * @fires module:engine/model/markercollection~MarkerCollection#event:update\n\t * @param {String|module:engine/model/markercollection~Marker} markerOrName Marker or name of a marker to remove.\n\t * @returns {Boolean} `true` if marker was found and removed, `false` otherwise.\n\t */\n\tpublic _remove( markerOrName: string | Marker ): boolean {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\t\tconst oldMarker = this._markers.get( markerName );\n\n\t\tif ( oldMarker ) {\n\t\t\tthis._markers.delete( markerName );\n\t\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, oldMarker, oldMarker.getRange(), null, oldMarker.getData() );\n\n\t\t\tthis._destroyMarker( oldMarker );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Fires an {@link module:engine/model/markercollection~MarkerCollection#event:update} event for the given {@link ~Marker marker}\n\t * but does not change the marker. Useful to force {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher downcast\n\t * conversion} for the marker.\n\t *\n\t * @internal\n\t * @protected\n\t * @fires module:engine/model/markercollection~MarkerCollection#event:update\n\t * @param {String|module:engine/model/markercollection~Marker} markerOrName Marker or name of a marker to refresh.\n\t */\n\tpublic _refresh( markerOrName: string | Marker ): void {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\t\tconst marker = this._markers.get( markerName );\n\n\t\tif ( !marker ) {\n\t\t\t/**\n\t\t\t * Marker with provided name does not exists.\n\t\t\t *\n\t\t\t * @error markercollection-refresh-marker-not-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'markercollection-refresh-marker-not-exists', this );\n\t\t}\n\n\t\tconst range = marker.getRange();\n\n\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, marker, range, range, marker.getData() );\n\t}\n\n\t/**\n\t * Returns iterator that iterates over all markers, which ranges contain given {@link module:engine/model/position~Position position}.\n\t *\n\t * @param {module:engine/model/position~Position} position\n\t * @returns {Iterable.<module:engine/model/markercollection~Marker>}\n\t */\n\tpublic* getMarkersAtPosition( position: Position ): IterableIterator<Marker> {\n\t\tfor ( const marker of this ) {\n\t\t\tif ( marker.getRange().containsPosition( position ) ) {\n\t\t\t\tyield marker;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns iterator that iterates over all markers, which intersects with given {@link module:engine/model/range~Range range}.\n\t *\n\t * @param {module:engine/model/range~Range} range\n\t * @returns {Iterable.<module:engine/model/markercollection~Marker>}\n\t */\n\tpublic* getMarkersIntersectingRange( range: Range ): Iterable<Marker> {\n\t\tfor ( const marker of this ) {\n\t\t\tif ( marker.getRange().getIntersection( range ) !== null ) {\n\t\t\t\tyield marker;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Destroys marker collection and all markers inside it.\n\t */\n\tpublic destroy(): void {\n\t\tfor ( const marker of this._markers.values() ) {\n\t\t\tthis._destroyMarker( marker );\n\t\t}\n\n\t\tthis._markers = null as any;\n\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Iterates over all markers that starts with given `prefix`.\n\t *\n\t *\t\tconst markerFooA = markersCollection.set( 'foo:a', rangeFooA );\n\t *\t\tconst markerFooB = markersCollection.set( 'foo:b', rangeFooB );\n\t *\t\tconst markerBarA = markersCollection.set( 'bar:a', rangeBarA );\n\t *\t\tconst markerFooBarA = markersCollection.set( 'foobar:a', rangeFooBarA );\n\t *\t\tArray.from( markersCollection.getMarkersGroup( 'foo' ) ); // [ markerFooA, markerFooB ]\n\t *\t\tArray.from( markersCollection.getMarkersGroup( 'a' ) ); // []\n\t *\n\t * @param prefix\n\t * @returns {Iterable.<module:engine/model/markercollection~Marker>}\n\t */\n\tpublic* getMarkersGroup( prefix: string ): IterableIterator<Marker> {\n\t\tfor ( const marker of this._markers.values() ) {\n\t\t\tif ( marker.name.startsWith( prefix + ':' ) ) {\n\t\t\t\tyield marker;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Destroys the marker.\n\t *\n\t * @private\n\t * @param {module:engine/model/markercollection~Marker} marker Marker to destroy.\n\t */\n\tprivate _destroyMarker( marker: Marker ): void {\n\t\tmarker.stopListening();\n\t\tmarker._detachLiveRange();\n\t}\n\n\t/**\n\t * Fired whenever marker is added, updated or removed from `MarkerCollection`.\n\t *\n\t * @event update\n\t * @param {module:engine/model/markercollection~Marker} marker Updated Marker.\n\t * @param {module:engine/model/range~Range|null} oldRange Marker range before the update. When is not defined it\n\t * means that marker is just added.\n\t * @param {module:engine/model/range~Range|null} newRange Marker range after update. When is not defined it\n\t * means that marker is just removed.\n\t * @param {module:engine/model/markercollection~MarkerData} oldMarkerData Data of the marker before the change.\n\t */\n}\n\n/**\n * @typedef {Object} module:engine/model/markercollection~MarkerData\n *\n * @property {module:engine/model/range~Range|null} range Marker range. `null` if the marker was removed.\n * @property {Boolean} affectsData A property defining if the marker affects data.\n * @property {Boolean} managedUsingOperations A property defining if the marker is managed using operations.\n */\n\nexport interface MarkerData {\n\trange: Range | null;\n\taffectsData: boolean;\n\tmanagedUsingOperations: boolean;\n}\n\n/**\n * `Marker` is a continuous parts of model (like a range), is named and represent some kind of information about marked\n * part of model document. In contrary to {@link module:engine/model/node~Node nodes}, which are building blocks of\n * model document tree, markers are not stored directly in document tree but in\n * {@link module:engine/model/model~Model#markers model markers' collection}. Still, they are document data, by giving\n * additional meaning to the part of a model document between marker start and marker end.\n *\n * In this sense, markers are similar to adding and converting attributes on nodes. The difference is that attribute is\n * connected with a given node (e.g. a character is bold no matter if it gets moved or content around it changes).\n * Markers on the other hand are continuous ranges and are characterized by their start and end position. This means that\n * any character in the marker is marked by the marker. For example, if a character is moved outside of marker it stops being\n * \"special\" and the marker is shrunk. Similarly, when a character is moved into the marker from other place in document\n * model, it starts being \"special\" and the marker is enlarged.\n *\n * Another upside of markers is that finding marked part of document is fast and easy. Using attributes to mark some nodes\n * and then trying to find that part of document would require traversing whole document tree. Marker gives instant access\n * to the range which it is marking at the moment.\n *\n * Markers are built from a name and a range.\n *\n * Range of the marker is updated automatically when document changes, using\n * {@link module:engine/model/liverange~LiveRange live range} mechanism.\n *\n * Name is used to group and identify markers. Names have to be unique, but markers can be grouped by\n * using common prefixes, separated with `:`, for example: `user:john` or `search:3`. That's useful in term of creating\n * namespaces for custom elements (e.g. comments, highlights). You can use this prefixes in\n * {@link module:engine/model/markercollection~MarkerCollection#event:update} listeners to listen on changes in a group of markers.\n * For instance: `model.markers.on( 'update:user', callback );` will be called whenever any `user:*` markers changes.\n *\n * There are two types of markers.\n *\n * 1. Markers managed directly, without using operations. They are added directly by {@link module:engine/model/writer~Writer}\n * to the {@link module:engine/model/markercollection~MarkerCollection} without any additional mechanism. They can be used\n * as bookmarks or visual markers. They are great for showing results of the find, or select link when the focus is in the input.\n *\n * 1. Markers managed using operations. These markers are also stored in {@link module:engine/model/markercollection~MarkerCollection}\n * but changes in these markers is managed the same way all other changes in the model structure - using operations.\n * Therefore, they are handled in the undo stack and synchronized between clients if the collaboration plugin is enabled.\n * This type of markers is useful for solutions like spell checking or comments.\n *\n * Both type of them should be added / updated by {@link module:engine/model/writer~Writer#addMarker}\n * and removed by {@link module:engine/model/writer~Writer#removeMarker} methods.\n *\n *\t\tmodel.change( ( writer ) => {\n * \t\t\tconst marker = writer.addMarker( name, { range, usingOperation: true } );\n *\n * \t\t\t// ...\n *\n * \t\t\twriter.removeMarker( marker );\n *\t\t} );\n *\n * See {@link module:engine/model/writer~Writer} to find more examples.\n *\n * Since markers need to track change in the document, for efficiency reasons, it is best to create and keep as little\n * markers as possible and remove them as soon as they are not needed anymore.\n *\n * Markers can be downcasted and upcasted.\n *\n * Markers downcast happens on {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker} and\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:removeMarker} events.\n * Use {@link module:engine/conversion/downcasthelpers downcast converters} or attach a custom converter to mentioned events.\n * For {@link module:engine/controller/datacontroller~DataController data pipeline}, marker should be downcasted to an element.\n * Then, it can be upcasted back to a marker. Again, use {@link module:engine/conversion/upcasthelpers upcast converters} or\n * attach a custom converter to {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element}.\n *\n * `Marker` instances are created and destroyed only by {@link ~MarkerCollection MarkerCollection}.\n */\nclass Marker extends EmitterMixin( TypeCheckable ) {\n\tpublic readonly name: string;\n\n\tprotected _liveRange: LiveRange | null;\n\n\t/** @internal */\n\tpublic _managedUsingOperations: boolean;\n\n\t/** @internal */\n\tpublic _affectsData: boolean;\n\n\t/**\n\t * Creates a marker instance.\n\t *\n\t * @param {String} name Marker name.\n\t * @param {module:engine/model/liverange~LiveRange} liveRange Range marked by the marker.\n\t * @param {Boolean} managedUsingOperations Specifies whether the marker is managed using operations.\n\t * @param {Boolean} affectsData Specifies whether the marker affects the data produced by the data pipeline\n\t * (is persisted in the editor's data).\n\t */\n\tconstructor(\n\t\tname: string,\n\t\tliveRange: LiveRange,\n\t\tmanagedUsingOperations: boolean,\n\t\taffectsData: boolean\n\t) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Marker's name.\n\t\t *\n\t\t * @readonly\n\t\t * @type {String}\n\t\t */\n\t\tthis.name = name;\n\n\t\t/**\n\t\t * Range marked by the marker.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:engine/model/liverange~LiveRange}\n\t\t */\n\t\tthis._liveRange = this._attachLiveRange( liveRange );\n\n\t\t/**\n\t\t * Flag indicates if the marker is managed using operations or not.\n\t\t *\n\t\t * @private\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._managedUsingOperations = managedUsingOperations;\n\n\t\t/**\n\t\t * Specifies whether the marker affects the data produced by the data pipeline\n\t\t * (is persisted in the editor's data).\n\t\t *\n\t\t * @private\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._affectsData = affectsData;\n\t}\n\n\t/**\n\t * A value indicating if the marker is managed using operations.\n\t * See {@link ~Marker marker class description} to learn more about marker types.\n\t * See {@link module:engine/model/writer~Writer#addMarker}.\n\t *\n\t * @returns {Boolean}\n\t */\n\tpublic get managedUsingOperations(): boolean {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._managedUsingOperations;\n\t}\n\n\t/**\n\t * A value indicating if the marker changes the data.\n\t *\n\t * @returns {Boolean}\n\t */\n\tpublic get affectsData(): boolean {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._affectsData;\n\t}\n\n\t/**\n\t * Returns the marker data (properties defining the marker).\n\t *\n\t * @returns {module:engine/model/markercollection~MarkerData}\n\t */\n\tpublic getData(): MarkerData {\n\t\treturn {\n\t\t\trange: this.getRange(),\n\t\t\taffectsData: this.affectsData,\n\t\t\tmanagedUsingOperations: this.managedUsingOperations\n\t\t};\n\t}\n\n\t/**\n\t * Returns current marker start position.\n\t *\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic getStart(): Position {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._liveRange.start.clone();\n\t}\n\n\t/**\n\t * Returns current marker end position.\n\t *\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic getEnd(): Position {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._liveRange.end.clone();\n\t}\n\n\t/**\n\t * Returns a range that represents the current state of the marker.\n\t *\n\t * Keep in mind that returned value is a {@link module:engine/model/range~Range Range}, not a\n\t * {@link module:engine/model/liverange~LiveRange LiveRange}. This means that it is up-to-date and relevant only\n\t * until next model document change. Do not store values returned by this method. Instead, store {@link ~Marker#name}\n\t * and get `Marker` instance from {@link module:engine/model/markercollection~MarkerCollection MarkerCollection} every\n\t * time there is a need to read marker properties. This will guarantee that the marker has not been removed and\n\t * that it's data is up-to-date.\n\t *\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic getRange(): Range {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._liveRange.toRange();\n\t}\n\n\t/**\n\t * Binds new live range to the marker and detach the old one if is attached.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/liverange~LiveRange} liveRange Live range to attach\n\t * @returns {module:engine/model/liverange~LiveRange} Attached live range.\n\t */\n\tpublic _attachLiveRange( liveRange: LiveRange ): LiveRange {\n\t\tif ( this._liveRange ) {\n\t\t\tthis._detachLiveRange();\n\t\t}\n\n\t\t// Delegating does not work with namespaces. Alternatively, we could delegate all events (using `*`).\n\t\tliveRange.delegate( 'change:range' ).to( this );\n\t\tliveRange.delegate( 'change:content' ).to( this );\n\n\t\tthis._liveRange = liveRange;\n\n\t\treturn liveRange;\n\t}\n\n\t/**\n\t * Unbinds and destroys currently attached live range.\n\t *\n\t * @internal\n\t * @protected\n\t */\n\tpublic _detachLiveRange(): void {\n\t\tthis._liveRange!.stopDelegating( 'change:range', this );\n\t\tthis._liveRange!.stopDelegating( 'change:content', this );\n\t\tthis._liveRange!.detach();\n\t\tthis._liveRange = null;\n\t}\n\n\t/**\n\t * Fired whenever {@link ~Marker#_liveRange marker range} is changed due to changes on {@link module:engine/model/document~Document}.\n\t * This is a delegated {@link module:engine/model/liverange~LiveRange#event:change:range LiveRange change:range event}.\n\t *\n\t * When marker is removed from {@link module:engine/model/markercollection~MarkerCollection MarkerCollection},\n\t * all event listeners listening to it should be removed. It is best to do it on\n\t * {@link module:engine/model/markercollection~MarkerCollection#event:update MarkerCollection update event}.\n\t *\n\t * @see module:engine/model/liverange~LiveRange#event:change:range\n\t * @event change:range\n\t * @param {module:engine/model/range~Range} oldRange\n\t * @param {Object} data\n\t */\n\n\t/**\n\t * Fired whenever change on {@link module:engine/model/document~Document} is done inside {@link ~Marker#_liveRange marker range}.\n\t * This is a delegated {@link module:engine/model/liverange~LiveRange#event:change:content LiveRange change:content event}.\n\t *\n\t * When marker is removed from {@link module:engine/model/markercollection~MarkerCollection MarkerCollection},\n\t * all event listeners listening to it should be removed. It is best to do it on\n\t * {@link module:engine/model/markercollection~MarkerCollection#event:update MarkerCollection update event}.\n\t *\n\t * @see module:engine/model/liverange~LiveRange#event:change:content\n\t * @event change:content\n\t * @param {module:engine/model/range~Range} oldRange\n\t * @param {Object} data\n\t */\n}\n\n/**\n * Checks whether this object is of the given.\n *\n *\t\tmarker.is( 'marker' ); // -> true\n *\t\tmarker.is( 'model:marker' ); // -> true\n *\n *\t\tmarker.is( 'view:element' ); // -> false\n *\t\tmarker.is( 'documentSelection' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nMarker.prototype.is = function( type: string ): boolean {\n\treturn type === 'marker' || type === 'model:marker';\n};\n\nexport type { Marker };\n\nexport type MarkerCollectionChangeEvent = LiveRangeChangeEvent;\n\nexport type MarkerCollectionUpdateEvent = {\n\tname: 'update' | `update:${ string }`;\n\targs: [ marker: Marker, oldRange: Range | null, newRange: Range | null, oldMarkerData: MarkerData ];\n};\n\n/**\n * Cannot use a {@link module:engine/model/markercollection~MarkerCollection#destroy destroyed marker} instance.\n *\n * @error marker-destroyed\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/detachoperation\n */\n\nimport Operation from './operation';\nimport Range from '../range';\nimport { _remove } from './utils';\n\nimport type Position from '../position';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const ModelRange = require( '../range' ).default;\n\n/**\n * Operation to permanently remove node from detached root.\n * Note this operation is only a local operation and won't be send to the other clients.\n *\n * @extends module:engine/model/operation/operation~Operation\n */\nexport default class DetachOperation extends Operation {\n\tpublic sourcePosition: Position;\n\tpublic howMany: number;\n\n\t// This class doesn't implement those abstract methods. Let's silence the compiler.\n\tdeclare public clone: () => Operation;\n\tdeclare public getReversed: () => Operation;\n\n\t/**\n\t * Creates an insert operation.\n\t *\n\t * @param {module:engine/model/position~Position} sourcePosition\n\t * Position before the first {@link module:engine/model/item~Item model item} to move.\n\t * @param {Number} howMany Offset size of moved range. Moved range will start from `sourcePosition` and end at\n\t * `sourcePosition` with offset shifted by `howMany`.\n\t */\n\tconstructor( sourcePosition: Position, howMany: number ) {\n\t\tsuper( null );\n\n\t\t/**\n\t\t * Position before the first {@link module:engine/model/item~Item model item} to detach.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} #sourcePosition\n\t\t */\n\t\tthis.sourcePosition = sourcePosition.clone();\n\n\t\t/**\n\t\t * Offset size of moved range.\n\t\t *\n\t\t * @member {Number} #howMany\n\t\t */\n\t\tthis.howMany = howMany;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'detach' {\n\t\treturn 'detach';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.sourcePosition = this.sourcePosition.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tif ( this.sourcePosition.root.document ) {\n\t\t\t/**\n\t\t\t * Cannot detach document node.\n\t\t\t *\n\t\t\t * @error detach-operation-on-document-node\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'detach-operation-on-document-node', this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t_remove( Range._createFromPositionAndShift( this.sourcePosition, this.howMany ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'DetachOperation';\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // const range = ModelRange._createFromPositionAndShift( this.sourcePosition, this.howMany );\n\t// @if CK_DEBUG_ENGINE //\tconst nodes = Array.from( range.getItems() );\n\t// @if CK_DEBUG_ENGINE //\tconst nodeString = nodes.length > 1 ? `[ ${ nodes.length } ]` : nodes[ 0 ];\n\n\t// @if CK_DEBUG_ENGINE //\treturn `DetachOperation( ${ this.baseVersion } ): ${ nodeString } -> ${ range }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module module:engine/model/documentfragment\n */\n\nimport TypeCheckable from './typecheckable';\nimport Element from './element';\nimport NodeList from './nodelist';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type Item from './item';\nimport type Node from './node';\nimport type Range from './range';\n\nimport { isIterable } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { stringifyMap } = require( '../dev-utils/utils' );\n\n/**\n * DocumentFragment represents a part of model which does not have a common root but its top-level nodes\n * can be seen as siblings. In other words, it is a detached part of model tree, without a root.\n *\n * DocumentFragment has own {@link module:engine/model/markercollection~MarkerCollection}. Markers from this collection\n * will be set to the {@link module:engine/model/model~Model#markers model markers} by a\n * {@link module:engine/model/writer~Writer#insert} function.\n */\nexport default class DocumentFragment extends TypeCheckable implements Iterable<Node> {\n\tpublic readonly markers: Map<string, Range>;\n\tdeclare public name?: undefined;\n\tdeclare public rootName?: undefined;\n\n\tprivate readonly _children: NodeList;\n\n\t/**\n\t * Creates an empty `DocumentFragment`.\n\t *\n\t * **Note:** Constructor of this class shouldn't be used directly in the code.\n\t * Use the {@link module:engine/model/writer~Writer#createDocumentFragment} method instead.\n\t *\n\t * @protected\n\t * @param {module:engine/model/node~Node|Iterable.<module:engine/model/node~Node>} [children]\n\t * Nodes to be contained inside the `DocumentFragment`.\n\t */\n\tconstructor( children?: Node | Iterable<Node> ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * DocumentFragment static markers map. This is a list of names and {@link module:engine/model/range~Range ranges}\n\t\t * which will be set as Markers to {@link module:engine/model/model~Model#markers model markers collection}\n\t\t * when DocumentFragment will be inserted to the document.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Map<String,module:engine/model/range~Range>} module:engine/model/documentfragment~DocumentFragment#markers\n\t\t */\n\t\tthis.markers = new Map();\n\n\t\t/**\n\t\t * List of nodes contained inside the document fragment.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/nodelist~NodeList} module:engine/model/documentfragment~DocumentFragment#_children\n\t\t */\n\t\tthis._children = new NodeList();\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all nodes contained inside this document fragment.\n\t *\n\t * @returns {Iterator.<module:engine/model/node~Node>}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<Node> {\n\t\treturn this.getChildren();\n\t}\n\n\t/**\n\t * Number of this document fragment's children.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Sum of {@link module:engine/model/node~Node#offsetSize offset sizes} of all of this document fragment's children.\n\t *\n\t * @readonly\n\t * @type {Number}\n\t */\n\tpublic get maxOffset(): number {\n\t\treturn this._children.maxOffset;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this document fragment, `false` otherwise.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this.childCount === 0;\n\t}\n\n\t/**\n\t * Artificial next sibling. Returns `null`. Added for compatibility reasons.\n\t *\n\t * @readonly\n\t * @type {null}\n\t */\n\tpublic get nextSibling(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Artificial previous sibling. Returns `null`. Added for compatibility reasons.\n\t *\n\t * @readonly\n\t * @type {null}\n\t */\n\tpublic get previousSibling(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Artificial root of `DocumentFragment`. Returns itself. Added for compatibility reasons.\n\t *\n\t * @readonly\n\t * @type {module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic get root(): DocumentFragment {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Artificial parent of `DocumentFragment`. Returns `null`. Added for compatibility reasons.\n\t *\n\t * @readonly\n\t * @type {null}\n\t */\n\tpublic get parent(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Artificial owner of `DocumentFragment`. Returns `null`. Added for compatibility reasons.\n\t *\n\t * @readonly\n\t * @type {null}\n\t */\n\tpublic get document(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns empty array. Added for compatibility reasons.\n\t *\n\t * @returns {Array}\n\t */\n\tpublic getAncestors(): Array<never> {\n\t\treturn [];\n\t}\n\n\t/**\n\t * Gets the child at the given index. Returns `null` if incorrect index was passed.\n\t *\n\t * @param {Number} index Index of child.\n\t * @returns {module:engine/model/node~Node|null} Child node.\n\t */\n\tpublic getChild( index: number ): Node | null {\n\t\treturn this._children.getNode( index );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all of this document fragment's children.\n\t *\n\t * @returns {Iterable.<module:engine/model/node~Node>}\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns an index of the given child node. Returns `null` if given node is not a child of this document fragment.\n\t *\n\t * @param {module:engine/model/node~Node} node Child node to look for.\n\t * @returns {Number|null} Child node's index.\n\t */\n\tpublic getChildIndex( node: Node ): number | null {\n\t\treturn this._children.getNodeIndex( node );\n\t}\n\n\t/**\n\t * Returns the starting offset of given child. Starting offset is equal to the sum of\n\t * {@link module:engine/model/node~Node#offsetSize offset sizes} of all node's siblings that are before it. Returns `null` if\n\t * given node is not a child of this document fragment.\n\t *\n\t * @param {module:engine/model/node~Node} node Child node to look for.\n\t * @returns {Number|null} Child node's starting offset.\n\t */\n\tpublic getChildStartOffset( node: Node ): number | null {\n\t\treturn this._children.getNodeStartOffset( node );\n\t}\n\n\t/**\n\t * Returns path to a `DocumentFragment`, which is an empty array. Added for compatibility reasons.\n\t *\n\t * @returns {Array}\n\t */\n\tpublic getPath(): Array<number> {\n\t\treturn [];\n\t}\n\n\t/**\n\t * Returns a descendant node by its path relative to this element.\n\t *\n\t *\t\t// <this>a<b>c</b></this>\n\t *\t\tthis.getNodeByPath( [ 0 ] );     // -> \"a\"\n\t *\t\tthis.getNodeByPath( [ 1 ] );     // -> <b>\n\t *\t\tthis.getNodeByPath( [ 1, 0 ] );  // -> \"c\"\n\t *\n\t * @param {Array.<Number>} relativePath Path of the node to find, relative to this element.\n\t * @returns {module:engine/model/node~Node|module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic getNodeByPath( relativePath: Array<number> ): Node | DocumentFragment {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node | DocumentFragment = this;\n\n\t\tfor ( const index of relativePath ) {\n\t\t\tnode = ( node as Element | DocumentFragment ).getChild( ( node as Element | DocumentFragment ).offsetToIndex( index ) )!;\n\t\t}\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Converts offset \"position\" to index \"position\".\n\t *\n\t * Returns index of a node that occupies given offset. If given offset is too low, returns `0`. If given offset is\n\t * too high, returns index after last child}.\n\t *\n\t *\t\tconst textNode = new Text( 'foo' );\n\t *\t\tconst pElement = new Element( 'p' );\n\t *\t\tconst docFrag = new DocumentFragment( [ textNode, pElement ] );\n\t *\t\tdocFrag.offsetToIndex( -1 ); // Returns 0, because offset is too low.\n\t *\t\tdocFrag.offsetToIndex( 0 ); // Returns 0, because offset 0 is taken by `textNode` which is at index 0.\n\t *\t\tdocFrag.offsetToIndex( 1 ); // Returns 0, because `textNode` has `offsetSize` equal to 3, so it occupies offset 1 too.\n\t *\t\tdocFrag.offsetToIndex( 2 ); // Returns 0.\n\t *\t\tdocFrag.offsetToIndex( 3 ); // Returns 1.\n\t *\t\tdocFrag.offsetToIndex( 4 ); // Returns 2. There are no nodes at offset 4, so last available index is returned.\n\t *\n\t * @param {Number} offset Offset to look for.\n\t * @returns {Number} Index of a node that occupies given offset.\n\t */\n\tpublic offsetToIndex( offset: number ): number {\n\t\treturn this._children.offsetToIndex( offset );\n\t}\n\n\t/**\n\t * Converts `DocumentFragment` instance to plain object and returns it.\n\t * Takes care of converting all of this document fragment's children.\n\t *\n\t * @returns {Object} `DocumentFragment` instance converted to plain object.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json = [];\n\n\t\tfor ( const node of this._children ) {\n\t\t\tjson.push( node.toJSON() );\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a `DocumentFragment` instance from given plain object (i.e. parsed JSON string).\n\t * Converts `DocumentFragment` children to proper nodes.\n\t *\n\t * @param {Object} json Plain object to be converted to `DocumentFragment`.\n\t * @returns {module:engine/model/documentfragment~DocumentFragment} `DocumentFragment` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any ): DocumentFragment {\n\t\tconst children = [];\n\n\t\tfor ( const child of json ) {\n\t\t\tif ( child.name ) {\n\t\t\t\t// If child has name property, it is an Element.\n\t\t\t\tchildren.push( Element.fromJSON( child ) );\n\t\t\t} else {\n\t\t\t\t// Otherwise, it is a Text node.\n\t\t\t\tchildren.push( Text.fromJSON( child ) );\n\t\t\t}\n\t\t}\n\n\t\treturn new DocumentFragment( children );\n\t}\n\n\t/**\n\t * {@link #_insertChild Inserts} one or more nodes at the end of this document fragment.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {String|module:engine/model/item~Item|Iterable.<String|module:engine/model/item~Item>} items Items to be inserted.\n\t */\n\tpublic _appendChild( items: string | Item | Iterable<string | Item> ): void {\n\t\tthis._insertChild( this.childCount, items );\n\t}\n\n\t/**\n\t * Inserts one or more nodes at the given index and sets {@link module:engine/model/node~Node#parent parent} of these nodes\n\t * to this document fragment.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {Number} index Index at which nodes should be inserted.\n\t * @param {String|module:engine/model/item~Item|Iterable.<String|module:engine/model/item~Item>} items Items to be inserted.\n\t */\n\tpublic _insertChild( index: number, items: string | Item | Iterable<string | Item> ): void {\n\t\tconst nodes = normalize( items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\tnode.parent = this;\n\t\t}\n\n\t\tthis._children._insertNodes( index, nodes );\n\t}\n\n\t/**\n\t * Removes one or more nodes starting at the given index\n\t * and sets {@link module:engine/model/node~Node#parent parent} of these nodes to `null`.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {Number} index Index of the first node to remove.\n\t * @param {Number} [howMany=1] Number of nodes to remove.\n\t * @returns {Array.<module:engine/model/node~Node>} Array containing removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tconst nodes = this._children._removeNodes( index, howMany );\n\n\t\tfor ( const node of nodes ) {\n\t\t\tnode.parent = null;\n\t\t}\n\n\t\treturn nodes;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // toString() {\n\t// @if CK_DEBUG_ENGINE // \treturn 'documentFragment';\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelDocumentFragment: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // printTree() {\n\t// @if CK_DEBUG_ENGINE //\tlet string = 'ModelDocumentFragment: [';\n\n\t// @if CK_DEBUG_ENGINE //\tfor ( const child of this.getChildren() ) {\n\t// @if CK_DEBUG_ENGINE //\t\tstring += '\\n';\n\n\t// @if CK_DEBUG_ENGINE //\t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE //\t\t\tconst textAttrs = stringifyMap( child._attrs );\n\n\t// @if CK_DEBUG_ENGINE //\t\t\tstring += '\\t'.repeat( 1 );\n\n\t// @if CK_DEBUG_ENGINE //\t\t\tif ( textAttrs !== '' ) {\n\t// @if CK_DEBUG_ENGINE //\t\t\t\tstring += `<$text${ textAttrs }>` + child.data + '</$text>';\n\t// @if CK_DEBUG_ENGINE //\t\t\t} else {\n\t// @if CK_DEBUG_ENGINE //\t\t\t\tstring += child.data;\n\t// @if CK_DEBUG_ENGINE //\t\t\t}\n\t// @if CK_DEBUG_ENGINE //\t\t} else {\n\t// @if CK_DEBUG_ENGINE //\t\t\tstring += child.printTree( 1 );\n\t// @if CK_DEBUG_ENGINE //\t\t}\n\t// @if CK_DEBUG_ENGINE //\t}\n\n\t// @if CK_DEBUG_ENGINE //\tstring += '\\n]';\n\n\t// @if CK_DEBUG_ENGINE //\treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // logTree() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Checks whether this object is of the given type.\n *\n *\t\tdocFrag.is( 'documentFragment' ); // -> true\n *\t\tdocFrag.is( 'model:documentFragment' ); // -> true\n *\n *\t\tdocFrag.is( 'view:documentFragment' ); // -> false\n *\t\tdocFrag.is( 'element' ); // -> false\n *\t\tdocFrag.is( 'node' ); // -> false\n *\n * {@link module:engine/model/node~Node#is Check the entire list of model objects} which implement the `is()` method.\n *\n * @param {String} type\n * @returns {Boolean}\n */\nDocumentFragment.prototype.is = function( type: string ): boolean {\n\treturn type === 'documentFragment' || type === 'model:documentFragment';\n};\n\n// Converts strings to Text and non-iterables to arrays.\n//\n// @param {String|module:engine/model/item~Item|Iterable.<module:engine/model/item~Item>}\n// @returns {Iterable.<module:engine/model/node~Node>}\nfunction normalize( nodes: string | Item | Iterable<string | Item> ): Iterable<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( node.data, node.getAttributes() );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/writer\n */\n\nimport AttributeOperation from './operation/attributeoperation';\nimport DetachOperation from './operation/detachoperation';\nimport InsertOperation from './operation/insertoperation';\nimport MarkerOperation from './operation/markeroperation';\nimport MergeOperation from './operation/mergeoperation';\nimport MoveOperation from './operation/moveoperation';\nimport RenameOperation from './operation/renameoperation';\nimport RootAttributeOperation from './operation/rootattributeoperation';\nimport SplitOperation from './operation/splitoperation';\n\nimport DocumentFragment from './documentfragment';\nimport DocumentSelection from './documentselection';\nimport Element from './element';\nimport Position, { type PositionStickiness } from './position';\nimport Range from './range';\nimport RootElement from './rootelement';\nimport Text from './text';\n\nimport type { Marker } from './markercollection';\nimport type Selection from './selection';\nimport type Batch from './batch';\nimport type Item from './item';\nimport type Model from './model';\nimport type { default as Node, NodeAttributes } from './node';\n\nimport { CKEditorError, logWarning, toMap } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The model can only be modified by using the writer. It should be used whenever you want to create a node, modify\n * child nodes, attributes or text, set the selection's position and its attributes.\n *\n * The instance of the writer is only available in the {@link module:engine/model/model~Model#change `change()`} or\n * {@link module:engine/model/model~Model#enqueueChange `enqueueChange()`}.\n *\n *\t\tmodel.change( writer => {\n *\t\t\twriter.insertText( 'foo', paragraph, 'end' );\n *\t\t} );\n *\n * Note that the writer should never be stored and used outside of the `change()` and\n * `enqueueChange()` blocks.\n *\n * Note that writer's methods do not check the {@link module:engine/model/schema~Schema}. It is possible\n * to create incorrect model structures by using the writer. Read more about in\n * {@glink framework/guides/deep-dive/schema#who-checks-the-schema \"Who checks the schema?\"}.\n *\n * @see module:engine/model/model~Model#change\n * @see module:engine/model/model~Model#enqueueChange\n */\nexport default class Writer {\n\tpublic readonly model: Model;\n\tpublic readonly batch: Batch;\n\n\t/**\n\t * Creates a writer instance.\n\t *\n\t * **Note:** It is not recommended to use it directly. Use {@link module:engine/model/model~Model#change `Model#change()`} or\n\t * {@link module:engine/model/model~Model#enqueueChange `Model#enqueueChange()`} instead.\n\t *\n\t * @protected\n\t * @param {module:engine/model/model~Model} model\n\t * @param {module:engine/model/batch~Batch} batch\n\t */\n\tconstructor( model: Model, batch: Batch ) {\n\t\t/**\n\t\t * Instance of the model on which this writer operates.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/model/model~Model}\n\t\t */\n\t\tthis.model = model;\n\n\t\t/**\n\t\t * The batch to which this writer will add changes.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/model/batch~Batch}\n\t\t */\n\t\tthis.batch = batch;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/model/text~Text text node}.\n\t *\n\t *\t\twriter.createText( 'foo' );\n\t *\t\twriter.createText( 'foo', { bold: true } );\n\t *\n\t * @param {String} data Text data.\n\t * @param {Object} [attributes] Text attributes.\n\t * @returns {module:engine/model/text~Text} Created text node.\n\t */\n\tpublic createText(\n\t\tdata: string,\n\t\tattributes?: NodeAttributes\n\t): Text {\n\t\treturn new Text( data, attributes );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/model/element~Element element}.\n\t *\n\t *\t\twriter.createElement( 'paragraph' );\n\t *\t\twriter.createElement( 'paragraph', { alignment: 'center' } );\n\t *\n\t * @param {String} name Name of the element.\n\t * @param {Object} [attributes] Elements attributes.\n\t * @returns {module:engine/model/element~Element} Created element.\n\t */\n\tpublic createElement(\n\t\tname: string,\n\t\tattributes?: NodeAttributes\n\t): Element {\n\t\treturn new Element( name, attributes );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/model/documentfragment~DocumentFragment document fragment}.\n\t *\n\t * @returns {module:engine/model/documentfragment~DocumentFragment} Created document fragment.\n\t */\n\tpublic createDocumentFragment(): DocumentFragment {\n\t\treturn new DocumentFragment();\n\t}\n\n\t/**\n\t * Creates a copy of the element and returns it. Created element has the same name and attributes as the original element.\n\t * If clone is deep, the original element's children are also cloned. If not, then empty element is returned.\n\t *\n\t * @param {module:engine/model/element~Element} element The element to clone.\n\t * @param {Boolean} [deep=true] If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any child.\n\t */\n\tpublic cloneElement( element: Element, deep: boolean = true ): Element {\n\t\treturn element._clone( deep );\n\t}\n\n\t/**\n\t * Inserts item on given position.\n\t *\n\t *\t\tconst paragraph = writer.createElement( 'paragraph' );\n\t *\t\twriter.insert( paragraph, position );\n\t *\n\t * Instead of using position you can use parent and offset:\n\t *\n\t *\t\tconst text = writer.createText( 'foo' );\n\t *\t\twriter.insert( text, paragraph, 5 );\n\t *\n\t * You can also use `end` instead of the offset to insert at the end:\n\t *\n\t *\t\tconst text = writer.createText( 'foo' );\n\t *\t\twriter.insert( text, paragraph, 'end' );\n\t *\n\t * Or insert before or after another element:\n\t *\n\t *\t\tconst paragraph = writer.createElement( 'paragraph' );\n\t *\t\twriter.insert( paragraph, anotherParagraph, 'after' );\n\t *\n\t * These parameters works the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * Note that if the item already has parent it will be removed from the previous parent.\n\t *\n\t * Note that you cannot re-insert a node from a document to a different document or a document fragment. In this case,\n\t * `model-writer-insert-forbidden-move` is thrown.\n\t *\n\t * If you want to move {@link module:engine/model/range~Range range} instead of an\n\t * {@link module:engine/model/item~Item item} use {@link module:engine/model/writer~Writer#move `Writer#move()`}.\n\t *\n\t * **Note:** For a paste-like content insertion mechanism see\n\t * {@link module:engine/model/model~Model#insertContent `model.insertContent()`}.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/documentfragment~DocumentFragment} item Item or document\n\t * fragment to insert.\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * second parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insert(\n\t\titem: Item | DocumentFragment,\n\t\titemOrPosition: Item | DocumentFragment | Position,\n\t\toffset: number | 'end' | 'before' | 'after' = 0\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( item instanceof Text && item.data == '' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = Position._createAt( itemOrPosition, offset );\n\n\t\t// If item has a parent already.\n\t\tif ( item.parent ) {\n\t\t\t// We need to check if item is going to be inserted within the same document.\n\t\t\tif ( isSameTree( item.root, position.root ) ) {\n\t\t\t\t// If it's we just need to move it.\n\t\t\t\tthis.move( Range._createOn( item ), position );\n\n\t\t\t\treturn;\n\t\t\t}\n\t\t\t// If it isn't the same root.\n\t\t\telse {\n\t\t\t\tif ( item.root.document ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Cannot move a node from a document to a different tree.\n\t\t\t\t\t * It is forbidden to move a node that was already in a document outside of it.\n\t\t\t\t\t *\n\t\t\t\t\t * @error model-writer-insert-forbidden-move\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t\t'model-writer-insert-forbidden-move',\n\t\t\t\t\t\tthis\n\t\t\t\t\t);\n\t\t\t\t} else {\n\t\t\t\t\t// Move between two different document fragments or from document fragment to a document is possible.\n\t\t\t\t\t// In that case, remove the item from it's original parent.\n\t\t\t\t\tthis.remove( item );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst version = position.root.document ? position.root.document.version : null;\n\n\t\tconst insert = new InsertOperation( position, item, version );\n\n\t\tif ( item instanceof Text ) {\n\t\t\tinsert.shouldReceiveAttributes = true;\n\t\t}\n\n\t\tthis.batch.addOperation( insert );\n\t\tthis.model.applyOperation( insert );\n\n\t\t// When element is a DocumentFragment we need to move its markers to Document#markers.\n\t\tif ( item instanceof DocumentFragment ) {\n\t\t\tfor ( const [ markerName, markerRange ] of item.markers ) {\n\t\t\t\t// We need to migrate marker range from DocumentFragment to Document.\n\t\t\t\tconst rangeRootPosition = Position._createAt( markerRange.root, 0 );\n\t\t\t\tconst range = new Range(\n\t\t\t\t\tmarkerRange.start._getCombined( rangeRootPosition, position ),\n\t\t\t\t\tmarkerRange.end._getCombined( rangeRootPosition, position )\n\t\t\t\t);\n\n\t\t\t\tconst options = { range, usingOperation: true, affectsData: true };\n\n\t\t\t\tif ( this.model.markers.has( markerName ) ) {\n\t\t\t\t\tthis.updateMarker( markerName, options );\n\t\t\t\t} else {\n\t\t\t\t\tthis.addMarker( markerName, options );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tpublic insertText(\n\t\ttext: string,\n\t\titemOrPosition?: Item | Position,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): void;\n\tpublic insertText(\n\t\ttext: string,\n\t\tattributes?: NodeAttributes,\n\t\titemOrPosition?: Item | Position,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): void;\n\n\t/**\n\t * Creates and inserts text on given position. You can optionally set text attributes:\n\t *\n\t *\t\twriter.insertText( 'foo', position );\n\t *\t\twriter.insertText( 'foo', { bold: true }, position );\n\t *\n\t * Instead of using position you can use parent and offset or define that text should be inserted at the end\n\t * or before or after other node:\n\t *\n\t *\t\t// Inserts 'foo' in paragraph, at offset 5:\n\t *\t\twriter.insertText( 'foo', paragraph, 5 );\n\t *\t\t// Inserts 'foo' at the end of a paragraph:\n\t *\t\twriter.insertText( 'foo', paragraph, 'end' );\n\t *\t\t// Inserts 'foo' after an image:\n\t *\t\twriter.insertText( 'foo', image, 'after' );\n\t *\n\t * These parameters work in the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * @param {String} dattexta Text data.\n\t * @param {Object} [attributes] Text attributes.\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * third parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insertText(\n\t\ttext: string,\n\t\tattributes?: any, // Too complicated when not using `any`.\n\t\titemOrPosition?: any, // Too complicated when not using `any`.\n\t\toffset?: any // Too complicated when not using `any`.\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element || attributes instanceof Position ) {\n\t\t\tthis.insert( this.createText( text ), attributes, itemOrPosition );\n\t\t} else {\n\t\t\tthis.insert( this.createText( text, attributes ), itemOrPosition, offset );\n\t\t}\n\t}\n\n\tpublic insertElement(\n\t\tname: string,\n\t\titemOrPosition: Item | DocumentFragment | Position,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): void;\n\tpublic insertElement(\n\t\tname: string,\n\t\tattributes: NodeAttributes,\n\t\titemOrPosition: Item | DocumentFragment | Position,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): void;\n\n\t/**\n\t * Creates and inserts element on given position. You can optionally set attributes:\n\t *\n\t *\t\twriter.insertElement( 'paragraph', position );\n\t *\t\twriter.insertElement( 'paragraph', { alignment: 'center' }, position );\n\t *\n\t * Instead of using position you can use parent and offset or define that text should be inserted at the end\n\t * or before or after other node:\n\t *\n\t *\t\t// Inserts paragraph in the root at offset 5:\n\t *\t\twriter.insertElement( 'paragraph', root, 5 );\n\t *\t\t// Inserts paragraph at the end of a blockquote:\n\t *\t\twriter.insertElement( 'paragraph', blockquote, 'end' );\n\t *\t\t// Inserts after an image:\n\t *\t\twriter.insertElement( 'paragraph', image, 'after' );\n\t *\n\t * These parameters works the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * @param {String} name Name of the element.\n\t * @param {Object} [attributes] Elements attributes.\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * third parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insertElement(\n\t\tname: string,\n\t\tattributes: any, // Too complicated when not using `any`.\n\t\titemOrPositionOrOffset?: any, // Too complicated when not using `any`.\n\t\toffset?: any // Too complicated when not using `any`.\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element || attributes instanceof Position ) {\n\t\t\tthis.insert( this.createElement( name ), attributes, itemOrPositionOrOffset );\n\t\t} else {\n\t\t\tthis.insert( this.createElement( name, attributes ), itemOrPositionOrOffset, offset );\n\t\t}\n\t}\n\n\t/**\n\t * Inserts item at the end of the given parent.\n\t *\n\t *\t\tconst paragraph = writer.createElement( 'paragraph' );\n\t *\t\twriter.append( paragraph, root );\n\t *\n\t * Note that if the item already has parent it will be removed from the previous parent.\n\t *\n\t * If you want to move {@link module:engine/model/range~Range range} instead of an\n\t * {@link module:engine/model/item~Item item} use {@link module:engine/model/writer~Writer#move `Writer#move()`}.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/documentfragment~DocumentFragment}\n\t * item Item or document fragment to insert.\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} parent\n\t */\n\tpublic append( item: Item | DocumentFragment, parent: Element | DocumentFragment ): void {\n\t\tthis.insert( item, parent, 'end' );\n\t}\n\n\tpublic appendText(\n\t\ttext: string,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\tpublic appendText(\n\t\ttext: string,\n\t\tattributes: NodeAttributes,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\n\t/**\n\t * Creates text node and inserts it at the end of the parent. You can optionally set text attributes:\n\t *\n\t *\t\twriter.appendText( 'foo', paragraph );\n\t *\t\twriter.appendText( 'foo', { bold: true }, paragraph );\n\t *\n\t * @param {String} text Text data.\n\t * @param {Object} [attributes] Text attributes.\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} parent\n\t */\n\tpublic appendText(\n\t\ttext: string,\n\t\tattributes: NodeAttributes | Element | DocumentFragment,\n\t\tparent?: Element | DocumentFragment\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element ) {\n\t\t\tthis.insert( this.createText( text ), attributes, 'end' );\n\t\t} else {\n\t\t\tthis.insert( this.createText( text, attributes ), parent!, 'end' );\n\t\t}\n\t}\n\n\tpublic appendElement(\n\t\tname: string,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\tpublic appendElement(\n\t\tname: string,\n\t\tattributes: NodeAttributes,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\n\t/**\n\t * Creates element and inserts it at the end of the parent. You can optionally set attributes:\n\t *\n\t *\t\twriter.appendElement( 'paragraph', root );\n\t *\t\twriter.appendElement( 'paragraph', { alignment: 'center' }, root );\n\t *\n\t * @param {String} name Name of the element.\n\t * @param {Object} [attributes] Elements attributes.\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} parent\n\t */\n\tpublic appendElement(\n\t\tname: string,\n\t\tattributes: NodeAttributes | Element | DocumentFragment,\n\t\tparent?: Element | DocumentFragment\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element ) {\n\t\t\tthis.insert( this.createElement( name ), attributes, 'end' );\n\t\t} else {\n\t\t\tthis.insert( this.createElement( name, attributes ), parent!, 'end' );\n\t\t}\n\t}\n\n\t/**\n\t * Sets value of the attribute with given key on a {@link module:engine/model/item~Item model item}\n\t * or on a {@link module:engine/model/range~Range range}.\n\t *\n\t * @param {String} key Attribute key.\n\t * @param {*} value Attribute new value.\n\t * @param {module:engine/model/item~Item|module:engine/model/range~Range} itemOrRange\n\t * Model item or range on which the attribute will be set.\n\t */\n\tpublic setAttribute( key: string, value: unknown, itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( itemOrRange instanceof Range ) {\n\t\t\tconst ranges = itemOrRange.getMinimalFlatRanges();\n\n\t\t\tfor ( const range of ranges ) {\n\t\t\t\tsetAttributeOnRange( this, key, value, range );\n\t\t\t}\n\t\t} else {\n\t\t\tsetAttributeOnItem( this, key, value, itemOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Sets values of attributes on a {@link module:engine/model/item~Item model item}\n\t * or on a {@link module:engine/model/range~Range range}.\n\t *\n\t *\t\twriter.setAttributes( {\n\t *\t\t\tbold: true,\n\t *\t\t\titalic: true\n\t *\t\t}, range );\n\t *\n\t * @param {Object} attributes Attributes keys and values.\n\t * @param {module:engine/model/item~Item|module:engine/model/range~Range} itemOrRange\n\t * Model item or range on which the attributes will be set.\n\t */\n\tpublic setAttributes(\n\t\tattributes: NodeAttributes,\n\t\titemOrRange: Item | Range\n\t): void {\n\t\tfor ( const [ key, val ] of toMap( attributes ) ) {\n\t\t\tthis.setAttribute( key, val, itemOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Removes an attribute with given key from a {@link module:engine/model/item~Item model item}\n\t * or from a {@link module:engine/model/range~Range range}.\n\t *\n\t * @param {String} key Attribute key.\n\t * @param {module:engine/model/item~Item|module:engine/model/range~Range} itemOrRange\n\t * Model item or range from which the attribute will be removed.\n\t */\n\tpublic removeAttribute( key: string, itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( itemOrRange instanceof Range ) {\n\t\t\tconst ranges = itemOrRange.getMinimalFlatRanges();\n\n\t\t\tfor ( const range of ranges ) {\n\t\t\t\tsetAttributeOnRange( this, key, null, range );\n\t\t\t}\n\t\t} else {\n\t\t\tsetAttributeOnItem( this, key, null, itemOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Removes all attributes from all elements in the range or from the given item.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/range~Range} itemOrRange\n\t * Model item or range from which all attributes will be removed.\n\t */\n\tpublic clearAttributes( itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst removeAttributesFromItem = ( item: Item ) => {\n\t\t\tfor ( const attribute of item.getAttributeKeys() ) {\n\t\t\t\tthis.removeAttribute( attribute, item );\n\t\t\t}\n\t\t};\n\n\t\tif ( !( itemOrRange instanceof Range ) ) {\n\t\t\tremoveAttributesFromItem( itemOrRange );\n\t\t} else {\n\t\t\tfor ( const item of itemOrRange.getItems() ) {\n\t\t\t\tremoveAttributesFromItem( item );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Moves all items in the source range to the target position.\n\t *\n\t *\t\twriter.move( sourceRange, targetPosition );\n\t *\n\t * Instead of the target position you can use parent and offset or define that range should be moved to the end\n\t * or before or after chosen item:\n\t *\n\t *\t\t// Moves all items in the range to the paragraph at offset 5:\n\t *\t\twriter.move( sourceRange, paragraph, 5 );\n\t *\t\t// Moves all items in the range to the end of a blockquote:\n\t *\t\twriter.move( sourceRange, blockquote, 'end' );\n\t *\t\t// Moves all items in the range to a position after an image:\n\t *\t\twriter.move( sourceRange, image, 'after' );\n\t *\n\t * These parameters works the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * Note that items can be moved only within the same tree. It means that you can move items within the same root\n\t * (element or document fragment) or between {@link module:engine/model/document~Document#roots documents roots},\n\t * but you can not move items from document fragment to the document or from one detached element to another. Use\n\t * {@link module:engine/model/writer~Writer#insert} in such cases.\n\t *\n\t * @param {module:engine/model/range~Range} range Source range.\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * second parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic move(\n\t\trange: Range,\n\t\titemOrPosition: Item | Position,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !( range instanceof Range ) ) {\n\t\t\t/**\n\t\t\t * Invalid range to move.\n\t\t\t *\n\t\t\t * @error writer-move-invalid-range\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-move-invalid-range', this );\n\t\t}\n\n\t\tif ( !range.isFlat ) {\n\t\t\t/**\n\t\t\t * Range to move is not flat.\n\t\t\t *\n\t\t\t * @error writer-move-range-not-flat\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-move-range-not-flat', this );\n\t\t}\n\n\t\tconst position = Position._createAt( itemOrPosition, offset );\n\n\t\t// Do not move anything if the move target is same as moved range start.\n\t\tif ( position.isEqual( range.start ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If part of the marker is removed, create additional marker operation for undo purposes.\n\t\tthis._addOperationForAffectedMarkers( 'move', range );\n\n\t\tif ( !isSameTree( range.root, position.root ) ) {\n\t\t\t/**\n\t\t\t * Range is going to be moved within not the same document. Please use\n\t\t\t * {@link module:engine/model/writer~Writer#insert insert} instead.\n\t\t\t *\n\t\t\t * @error writer-move-different-document\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-move-different-document', this );\n\t\t}\n\n\t\tconst version = range.root.document ? range.root.document.version : null;\n\t\tconst operation = new MoveOperation( range.start, range.end.offset - range.start.offset, position, version );\n\n\t\tthis.batch.addOperation( operation );\n\t\tthis.model.applyOperation( operation );\n\t}\n\n\t/**\n\t * Removes given model {@link module:engine/model/item~Item item} or {@link module:engine/model/range~Range range}.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/range~Range} itemOrRange Model item or range to remove.\n\t */\n\tpublic remove( itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst rangeToRemove = itemOrRange instanceof Range ? itemOrRange : Range._createOn( itemOrRange );\n\t\tconst ranges = rangeToRemove.getMinimalFlatRanges().reverse();\n\n\t\tfor ( const flat of ranges ) {\n\t\t\t// If part of the marker is removed, create additional marker operation for undo purposes.\n\t\t\tthis._addOperationForAffectedMarkers( 'move', flat );\n\n\t\t\tapplyRemoveOperation( flat.start, flat.end.offset - flat.start.offset, this.batch, this.model );\n\t\t}\n\t}\n\n\t/**\n\t * Merges two siblings at the given position.\n\t *\n\t * Node before and after the position have to be an element. Otherwise `writer-merge-no-element-before` or\n\t * `writer-merge-no-element-after` error will be thrown.\n\t *\n\t * @param {module:engine/model/position~Position} position Position between merged elements.\n\t */\n\tpublic merge( position: Position ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst nodeBefore = position.nodeBefore;\n\t\tconst nodeAfter = position.nodeAfter;\n\n\t\t// If part of the marker is removed, create additional marker operation for undo purposes.\n\t\tthis._addOperationForAffectedMarkers( 'merge', position );\n\n\t\tif ( !( nodeBefore instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Node before merge position must be an element.\n\t\t\t *\n\t\t\t * @error writer-merge-no-element-before\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-merge-no-element-before', this );\n\t\t}\n\n\t\tif ( !( nodeAfter instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Node after merge position must be an element.\n\t\t\t *\n\t\t\t * @error writer-merge-no-element-after\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-merge-no-element-after', this );\n\t\t}\n\n\t\tif ( !position.root.document ) {\n\t\t\tthis._mergeDetached( position );\n\t\t} else {\n\t\t\tthis._merge( position );\n\t\t}\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionFromPath `Model#createPositionFromPath()`}.\n\t *\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} root Root of the position.\n\t * @param {Array.<Number>} path Position path. See {@link module:engine/model/position~Position#path}.\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone'] Position stickiness.\n\t * See {@link module:engine/model/position~PositionStickiness}.\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic createPositionFromPath(\n\t\troot: Element | DocumentFragment,\n\t\tpath: Array<number>,\n\t\tstickiness?: PositionStickiness\n\t): Position {\n\t\treturn this.model.createPositionFromPath( root, path, stickiness );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionAt `Model#createPositionAt()`}.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic createPositionAt(\n\t\titemOrPosition: Item | Position | DocumentFragment,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): Position {\n\t\treturn this.model.createPositionAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionAfter `Model#createPositionAfter()`}.\n\t *\n\t * @param {module:engine/model/item~Item} item Item after which the position should be placed.\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn this.model.createPositionAfter( item );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionBefore `Model#createPositionBefore()`}.\n\t *\n\t * @param {module:engine/model/item~Item} item Item after which the position should be placed.\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn this.model.createPositionBefore( item );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createRange `Model#createRange()`}.\n\t *\n\t * @param {module:engine/model/position~Position} start Start position.\n\t * @param {module:engine/model/position~Position} [end] End position. If not set, range will be collapsed at `start` position.\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic createRange( start: Position, end?: Position ): Range {\n\t\treturn this.model.createRange( start, end );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createRangeIn `Model#createRangeIn()`}.\n\t *\n\t * @param {module:engine/model/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic createRangeIn( element: Element | DocumentFragment ): Range {\n\t\treturn this.model.createRangeIn( element );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createRangeOn `Model#createRangeOn()`}.\n\t *\n\t * @param {module:engine/model/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic createRangeOn( element: Item ): Range {\n\t\treturn this.model.createRangeOn( element );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createSelection `Model#createSelection()`}.\n\t *\n\t * @param {module:engine/model/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @returns {module:engine/model/selection~Selection}\n\t */\n\tpublic createSelection( ...args: ConstructorParameters<typeof Selection> ): Selection {\n\t\treturn this.model.createSelection( ...args );\n\t}\n\n\t/**\n\t * Performs merge action in a detached tree.\n\t *\n\t * @private\n\t * @param {module:engine/model/position~Position} position Position between merged elements.\n\t */\n\tprivate _mergeDetached( position: Position ): void {\n\t\tconst nodeBefore = position.nodeBefore;\n\t\tconst nodeAfter = position.nodeAfter;\n\n\t\tthis.move( Range._createIn( nodeAfter as any ), Position._createAt( nodeBefore!, 'end' ) );\n\t\tthis.remove( nodeAfter! );\n\t}\n\n\t/**\n\t * Performs merge action in a non-detached tree.\n\t *\n\t * @private\n\t * @param {module:engine/model/position~Position} position Position between merged elements.\n\t */\n\tprivate _merge( position: Position ): void {\n\t\tconst targetPosition = Position._createAt( position.nodeBefore!, 'end' );\n\t\tconst sourcePosition = Position._createAt( position.nodeAfter!, 0 );\n\n\t\tconst graveyard = position.root.document!.graveyard;\n\t\tconst graveyardPosition = new Position( graveyard, [ 0 ] );\n\n\t\tconst version = position.root.document!.version;\n\n\t\tconst merge = new MergeOperation(\n\t\t\tsourcePosition,\n\t\t\t( position.nodeAfter as any ).maxOffset,\n\t\t\ttargetPosition,\n\t\t\tgraveyardPosition,\n\t\t\tversion\n\t\t);\n\n\t\tthis.batch.addOperation( merge );\n\t\tthis.model.applyOperation( merge );\n\t}\n\n\t/**\n\t * Renames the given element.\n\t *\n\t * @param {module:engine/model/element~Element} element The element to rename.\n\t * @param {String} newName New element name.\n\t */\n\tpublic rename( element: Element, newName: string ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !( element instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Trying to rename an object which is not an instance of Element.\n\t\t\t *\n\t\t\t * @error writer-rename-not-element-instance\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'writer-rename-not-element-instance',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tconst version = element.root.document ? element.root.document.version : null;\n\t\tconst renameOperation = new RenameOperation( Position._createBefore( element ), element.name, newName, version );\n\n\t\tthis.batch.addOperation( renameOperation );\n\t\tthis.model.applyOperation( renameOperation );\n\t}\n\n\t/**\n\t * Splits elements starting from the given position and going to the top of the model tree as long as given\n\t * `limitElement` is reached. When `limitElement` is not defined then only the parent of the given position will be split.\n\t *\n\t * The element needs to have a parent. It cannot be a root element nor a document fragment.\n\t * The `writer-split-element-no-parent` error will be thrown if you try to split an element with no parent.\n\t *\n\t * @param {module:engine/model/position~Position} position Position of split.\n\t * @param {module:engine/model/node~Node} [limitElement] Stop splitting when this element will be reached.\n\t * @returns {Object} result Split result.\n\t * @returns {module:engine/model/position~Position} result.position Position between split elements.\n\t * @returns {module:engine/model/range~Range} result.range Range that stars from the end of the first split element and ends\n\t * at the beginning of the first copy element.\n\t */\n\tpublic split( position: Position, limitElement?: Node | DocumentFragment ): { position: Position; range: Range } {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tlet splitElement = position.parent;\n\n\t\tif ( !splitElement.parent ) {\n\t\t\t/**\n\t\t\t * Element with no parent can not be split.\n\t\t\t *\n\t\t\t * @error writer-split-element-no-parent\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-split-element-no-parent', this );\n\t\t}\n\n\t\t// When limit element is not defined lets set splitElement parent as limit.\n\t\tif ( !limitElement ) {\n\t\t\tlimitElement = splitElement.parent;\n\t\t}\n\n\t\tif ( !position.parent.getAncestors( { includeSelf: true } ).includes( limitElement! ) ) {\n\t\t\t/**\n\t\t\t * Limit element is not a position ancestor.\n\t\t\t *\n\t\t\t * @error writer-split-invalid-limit-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-split-invalid-limit-element', this );\n\t\t}\n\n\t\t// We need to cache elements that will be created as a result of the first split because\n\t\t// we need to create a range from the end of the first split element to the beginning of the\n\t\t// first copy element. This should be handled by LiveRange but it doesn't work on detached nodes.\n\t\tlet firstSplitElement: Element | DocumentFragment | undefined;\n\t\tlet firstCopyElement: Node | null | undefined;\n\n\t\tdo {\n\t\t\tconst version = splitElement.root.document ? splitElement.root.document.version : null;\n\t\t\tconst howMany = splitElement.maxOffset - position.offset;\n\n\t\t\tconst insertionPosition = SplitOperation.getInsertionPosition( position );\n\t\t\tconst split = new SplitOperation( position, howMany, insertionPosition, null, version );\n\n\t\t\tthis.batch.addOperation( split );\n\t\t\tthis.model.applyOperation( split );\n\n\t\t\t// Cache result of the first split.\n\t\t\tif ( !firstSplitElement && !firstCopyElement ) {\n\t\t\t\tfirstSplitElement = splitElement;\n\t\t\t\tfirstCopyElement = position.parent.nextSibling;\n\t\t\t}\n\n\t\t\tposition = this.createPositionAfter( position.parent as any );\n\t\t\tsplitElement = position.parent;\n\t\t} while ( splitElement !== limitElement );\n\n\t\treturn {\n\t\t\tposition,\n\t\t\trange: new Range( Position._createAt( firstSplitElement!, 'end' ), Position._createAt( firstCopyElement!, 0 ) )\n\t\t};\n\t}\n\n\t/**\n\t * Wraps the given range with the given element or with a new element (if a string was passed).\n\t *\n\t * **Note:** range to wrap should be a \"flat range\" (see {@link module:engine/model/range~Range#isFlat `Range#isFlat`}).\n\t * If not, an error will be thrown.\n\t *\n\t * @param {module:engine/model/range~Range} range Range to wrap.\n\t * @param {module:engine/model/element~Element|String} elementOrString Element or name of element to wrap the range with.\n\t */\n\tpublic wrap( range: Range, elementOrString: Element | string ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !range.isFlat ) {\n\t\t\t/**\n\t\t\t * Range to wrap is not flat.\n\t\t\t *\n\t\t\t * @error writer-wrap-range-not-flat\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-wrap-range-not-flat', this );\n\t\t}\n\n\t\tconst element = elementOrString instanceof Element ? elementOrString : new Element( elementOrString );\n\n\t\tif ( element.childCount > 0 ) {\n\t\t\t/**\n\t\t\t * Element to wrap with is not empty.\n\t\t\t *\n\t\t\t * @error writer-wrap-element-not-empty\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-wrap-element-not-empty', this );\n\t\t}\n\n\t\tif ( element.parent !== null ) {\n\t\t\t/**\n\t\t\t * Element to wrap with is already attached to a tree model.\n\t\t\t *\n\t\t\t * @error writer-wrap-element-attached\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-wrap-element-attached', this );\n\t\t}\n\n\t\tthis.insert( element, range.start );\n\n\t\t// Shift the range-to-wrap because we just inserted an element before that range.\n\t\tconst shiftedRange = new Range( range.start.getShiftedBy( 1 ), range.end.getShiftedBy( 1 ) );\n\n\t\tthis.move( shiftedRange, Position._createAt( element, 0 ) );\n\t}\n\n\t/**\n\t * Unwraps children of the given element – all its children are moved before it and then the element is removed.\n\t * Throws error if you try to unwrap an element which does not have a parent.\n\t *\n\t * @param {module:engine/model/element~Element} element Element to unwrap.\n\t */\n\tpublic unwrap( element: Element ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( element.parent === null ) {\n\t\t\t/**\n\t\t\t * Trying to unwrap an element which has no parent.\n\t\t\t *\n\t\t\t * @error writer-unwrap-element-no-parent\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-unwrap-element-no-parent', this );\n\t\t}\n\n\t\tthis.move( Range._createIn( element ), this.createPositionAfter( element ) );\n\t\tthis.remove( element );\n\t}\n\n\t/**\n\t * Adds a {@link module:engine/model/markercollection~Marker marker}. Marker is a named range, which tracks\n\t * changes in the document and updates its range automatically, when model tree changes.\n\t *\n\t * As the first parameter you can set marker name.\n\t *\n\t * The required `options.usingOperation` parameter lets you decide if the marker should be managed by operations or not. See\n\t * {@link module:engine/model/markercollection~Marker marker class description} to learn about the difference between\n\t * markers managed by operations and not-managed by operations.\n\t *\n\t * The `options.affectsData` parameter, which defaults to `false`, allows you to define if a marker affects the data. It should be\n\t * `true` when the marker change changes the data returned by the\n\t * {@link module:core/editor/utils/dataapimixin~DataApi#getData `editor.getData()`} method.\n\t * When set to `true` it fires the {@link module:engine/model/document~Document#event:change:data `change:data`} event.\n\t * When set to `false` it fires the {@link module:engine/model/document~Document#event:change `change`} event.\n\t *\n\t * Create marker directly base on marker's name:\n\t *\n\t *\t\taddMarker( markerName, { range, usingOperation: false } );\n\t *\n\t * Create marker using operation:\n\t *\n\t *\t\taddMarker( markerName, { range, usingOperation: true } );\n\t *\n\t * Create marker that affects the editor data:\n\t *\n\t *\t\taddMarker( markerName, { range, usingOperation: false, affectsData: true } );\n\t *\n\t * Note: For efficiency reasons, it's best to create and keep as little markers as possible.\n\t *\n\t * @see module:engine/model/markercollection~Marker\n\t * @param {String} name Name of a marker to create - must be unique.\n\t * @param {Object} options\n\t * @param {Boolean} options.usingOperation Flag indicating that the marker should be added by MarkerOperation.\n\t * See {@link module:engine/model/markercollection~Marker#managedUsingOperations}.\n\t * @param {module:engine/model/range~Range} options.range Marker range.\n\t * @param {Boolean} [options.affectsData=false] Flag indicating that the marker changes the editor data.\n\t * @returns {module:engine/model/markercollection~Marker} Marker that was set.\n\t */\n\tpublic addMarker(\n\t\tname: string,\n\t\toptions: {\n\t\t\tusingOperation: boolean;\n\t\t\taffectsData?: boolean;\n\t\t\trange: Range;\n\t\t}\n\t): Marker {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !options || typeof options.usingOperation != 'boolean' ) {\n\t\t\t/**\n\t\t\t * The `options.usingOperation` parameter is required when adding a new marker.\n\t\t\t *\n\t\t\t * @error writer-addmarker-no-usingoperation\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-addmarker-no-usingoperation', this );\n\t\t}\n\n\t\tconst usingOperation = options.usingOperation;\n\t\tconst range = options.range;\n\t\tconst affectsData = options.affectsData === undefined ? false : options.affectsData;\n\n\t\tif ( this.model.markers.has( name ) ) {\n\t\t\t/**\n\t\t\t * Marker with provided name already exists.\n\t\t\t *\n\t\t\t * @error writer-addmarker-marker-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-addmarker-marker-exists', this );\n\t\t}\n\n\t\tif ( !range ) {\n\t\t\t/**\n\t\t\t * Range parameter is required when adding a new marker.\n\t\t\t *\n\t\t\t * @error writer-addmarker-no-range\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-addmarker-no-range', this );\n\t\t}\n\n\t\tif ( !usingOperation ) {\n\t\t\treturn this.model.markers._set( name, range, usingOperation, affectsData );\n\t\t}\n\n\t\tapplyMarkerOperation( this, name, null, range, affectsData );\n\n\t\treturn this.model.markers.get( name )!;\n\t}\n\n\t/**\n\t * Adds, updates or refreshes a {@link module:engine/model/markercollection~Marker marker}. Marker is a named range, which tracks\n\t * changes in the document and updates its range automatically, when model tree changes. Still, it is possible to change the\n\t * marker's range directly using this method.\n\t *\n\t * As the first parameter you can set marker name or instance. If none of them is provided, new marker, with a unique\n\t * name is created and returned.\n\t *\n\t * **Note**: If you want to change the {@link module:engine/view/element~Element view element} of the marker while its data in the model\n\t * remains the same, use the dedicated {@link module:engine/controller/editingcontroller~EditingController#reconvertMarker} method.\n\t *\n\t * The `options.usingOperation` parameter lets you change if the marker should be managed by operations or not. See\n\t * {@link module:engine/model/markercollection~Marker marker class description} to learn about the difference between\n\t * markers managed by operations and not-managed by operations. It is possible to change this option for an existing marker.\n\t *\n\t * The `options.affectsData` parameter, which defaults to `false`, allows you to define if a marker affects the data. It should be\n\t * `true` when the marker change changes the data returned by\n\t * the {@link module:core/editor/utils/dataapimixin~DataApi#getData `editor.getData()`} method.\n\t * When set to `true` it fires the {@link module:engine/model/document~Document#event:change:data `change:data`} event.\n\t * When set to `false` it fires the {@link module:engine/model/document~Document#event:change `change`} event.\n\t *\n\t * Update marker directly base on marker's name:\n\t *\n\t *\t\tupdateMarker( markerName, { range } );\n\t *\n\t * Update marker using operation:\n\t *\n\t *\t\tupdateMarker( marker, { range, usingOperation: true } );\n\t *\t\tupdateMarker( markerName, { range, usingOperation: true } );\n\t *\n\t * Change marker's option (start using operations to manage it):\n\t *\n\t *\t\tupdateMarker( marker, { usingOperation: true } );\n\t *\n\t * Change marker's option (inform the engine, that the marker does not affect the data anymore):\n\t *\n\t *\t\tupdateMarker( markerName, { affectsData: false } );\n\t *\n\t * @see module:engine/model/markercollection~Marker\n\t * @param {String|module:engine/model/markercollection~Marker} markerOrName Name of a marker to update, or a marker instance.\n\t * @param {Object} [options] If options object is not defined then marker will be refreshed by triggering\n\t * downcast conversion for this marker with the same data.\n\t * @param {module:engine/model/range~Range} [options.range] Marker range to update.\n\t * @param {Boolean} [options.usingOperation] Flag indicated whether the marker should be added by MarkerOperation.\n\t * See {@link module:engine/model/markercollection~Marker#managedUsingOperations}.\n\t * @param {Boolean} [options.affectsData] Flag indicating that the marker changes the editor data.\n\t */\n\tpublic updateMarker(\n\t\tmarkerOrName: string | Marker,\n\t\toptions?: {\n\t\t\trange?: Range;\n\t\t\tusingOperation?: boolean;\n\t\t\taffectsData?: boolean;\n\t\t}\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst markerName = typeof markerOrName == 'string' ? markerOrName : markerOrName.name;\n\t\tconst currentMarker = this.model.markers.get( markerName );\n\n\t\tif ( !currentMarker ) {\n\t\t\t/**\n\t\t\t * Marker with provided name does not exist and will not be updated.\n\t\t\t *\n\t\t\t * @error writer-updatemarker-marker-not-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-updatemarker-marker-not-exists', this );\n\t\t}\n\n\t\tif ( !options ) {\n\t\t\t/**\n\t\t\t * The usage of `writer.updateMarker()` only to reconvert (refresh) a\n\t\t\t * {@link module:engine/model/markercollection~Marker model marker} was deprecated and may not work in the future.\n\t\t\t * Please update your code to use\n\t\t\t * {@link module:engine/controller/editingcontroller~EditingController#reconvertMarker `editor.editing.reconvertMarker()`}\n\t\t\t * instead.\n\t\t\t *\n\t\t\t * @error writer-updatemarker-reconvert-using-editingcontroller\n\t\t\t * @param {String} markerName The name of the updated marker.\n\t\t\t */\n\t\t\tlogWarning( 'writer-updatemarker-reconvert-using-editingcontroller', { markerName } );\n\n\t\t\tthis.model.markers._refresh( currentMarker );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst hasUsingOperationDefined = typeof options.usingOperation == 'boolean';\n\t\tconst affectsDataDefined = typeof options.affectsData == 'boolean';\n\n\t\t// Use previously defined marker's affectsData if the property is not provided.\n\t\tconst affectsData = affectsDataDefined ? options.affectsData : currentMarker.affectsData;\n\n\t\tif ( !hasUsingOperationDefined && !options.range && !affectsDataDefined ) {\n\t\t\t/**\n\t\t\t * One of the options is required - provide range, usingOperations or affectsData.\n\t\t\t *\n\t\t\t * @error writer-updatemarker-wrong-options\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-updatemarker-wrong-options', this );\n\t\t}\n\n\t\tconst currentRange = currentMarker.getRange();\n\t\tconst updatedRange = options.range ? options.range : currentRange;\n\n\t\tif ( hasUsingOperationDefined && options.usingOperation !== currentMarker.managedUsingOperations ) {\n\t\t\t// The marker type is changed so it's necessary to create proper operations.\n\t\t\tif ( options.usingOperation ) {\n\t\t\t\t// If marker changes to a managed one treat this as synchronizing existing marker.\n\t\t\t\t// Create `MarkerOperation` with `oldRange` set to `null`, so reverse operation will remove the marker.\n\t\t\t\tapplyMarkerOperation( this, markerName, null, updatedRange, affectsData );\n\t\t\t} else {\n\t\t\t\t// If marker changes to a marker that do not use operations then we need to create additional operation\n\t\t\t\t// that removes that marker first.\n\t\t\t\tapplyMarkerOperation( this, markerName, currentRange, null, affectsData );\n\n\t\t\t\t// Although not managed the marker itself should stay in model and its range should be preserver or changed to passed range.\n\t\t\t\tthis.model.markers._set( markerName, updatedRange, undefined, affectsData );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Marker's type doesn't change so update it accordingly.\n\t\tif ( currentMarker.managedUsingOperations ) {\n\t\t\tapplyMarkerOperation( this, markerName, currentRange, updatedRange, affectsData );\n\t\t} else {\n\t\t\tthis.model.markers._set( markerName, updatedRange, undefined, affectsData );\n\t\t}\n\t}\n\n\t/**\n\t * Removes given {@link module:engine/model/markercollection~Marker marker} or marker with given name.\n\t * The marker is removed accordingly to how it has been created, so if the marker was created using operation,\n\t * it will be destroyed using operation.\n\t *\n\t * @param {module:engine/model/markercollection~Marker|String} markerOrName Marker or marker name to remove.\n\t */\n\tpublic removeMarker( markerOrName: string | Marker ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst name = typeof markerOrName == 'string' ? markerOrName : markerOrName.name;\n\n\t\tif ( !this.model.markers.has( name ) ) {\n\t\t\t/**\n\t\t\t * Trying to remove marker which does not exist.\n\t\t\t *\n\t\t\t * @error writer-removemarker-no-marker\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-removemarker-no-marker', this );\n\t\t}\n\n\t\tconst marker = this.model.markers.get( name )!;\n\n\t\tif ( !marker.managedUsingOperations ) {\n\t\t\tthis.model.markers._remove( name );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst oldRange = marker.getRange();\n\n\t\tapplyMarkerOperation( this, name, oldRange, null, marker.affectsData );\n\t}\n\n\t/**\n\t * Sets the document's selection (ranges and direction) to the specified location based on the given\n\t * {@link module:engine/model/selection~Selectable selectable} or creates an empty selection if no arguments were passed.\n\t *\n\t *\t\t// Sets selection to the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\twriter.setSelection( range );\n\t *\n\t *\t\t// Sets selection to given ranges.\n\t *\t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\twriter.setSelection( ranges );\n\t *\n\t *\t\t// Sets selection to other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\twriter.setSelection( otherSelection );\n\t *\n\t *\t\t// Sets selection to the given document selection.\n\t *\t\tconst documentSelection = model.document.selection;\n\t *\t\twriter.setSelection( documentSelection );\n\t *\n\t *\t\t// Sets collapsed selection at the given position.\n\t *\t\tconst position = writer.createPosition( root, path );\n\t *\t\twriter.setSelection( position );\n\t *\n\t *\t\t// Sets collapsed selection at the position of the given node and an offset.\n\t *\t\twriter.setSelection( paragraph, offset );\n\t *\n\t * Creates a range inside an {@link module:engine/model/element~Element element} which starts before the first child of\n \t * that element and ends after the last child of that element.\n\t *\n\t *\t\twriter.setSelection( paragraph, 'in' );\n\t *\n\t * Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t *\t\twriter.setSelection( paragraph, 'on' );\n\t *\n\t *\t\t// Removes all selection's ranges.\n\t *\t\twriter.setSelection( null );\n\t *\n\t * `Writer#setSelection()` allow passing additional options (`backward`) as the last argument.\n\t *\n\t *\t\t// Sets selection as backward.\n\t *\t\twriter.setSelection( range, { backward: true } );\n\t *\n\t * Throws `writer-incorrect-use` error when the writer is used outside the `change()` block.\n\t *\n\t * @param {module:engine/model/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t */\n\tpublic setSelection( ...args: Parameters<Selection[ 'setTo' ]> ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tthis.model.document.selection._setTo( ...args );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/model/documentselection~DocumentSelection#focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as\n\t * {@link #createPositionAt `writer.createPositionAt()`} parameters.\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset=0] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic setSelectionFocus(\n\t\titemOrPosition: Item | Position,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tthis.model.document.selection._setFocus( itemOrPosition, offset );\n\t}\n\n\tpublic setSelectionAttribute( key: string, value: unknown ): void;\n\tpublic setSelectionAttribute( objectOrIterable: NodeAttributes ): void;\n\n\t/**\n\t * Sets attribute(s) on the selection. If attribute with the same key already is set, it's value is overwritten.\n\t *\n\t * Using key and value pair:\n\t *\n\t * \twriter.setSelectionAttribute( 'italic', true );\n\t *\n\t * Using key-value object:\n\t *\n\t * \twriter.setSelectionAttribute( { italic: true, bold: false } );\n\t *\n\t * Using iterable object:\n\t *\n\t * \twriter.setSelectionAttribute( new Map( [ [ 'italic', true ] ] ) );\n\t *\n\t * @param {String|Object|Iterable.<*>} keyOrObjectOrIterable Key of the attribute to set\n\t * or object / iterable of key => value attribute pairs.\n\t * @param {*} [value] Attribute value.\n\t */\n\tpublic setSelectionAttribute(\n\t\tkeyOrObjectOrIterable: string | NodeAttributes,\n\t\tvalue?: unknown\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( typeof keyOrObjectOrIterable === 'string' ) {\n\t\t\tthis._setSelectionAttribute( keyOrObjectOrIterable, value );\n\t\t} else {\n\t\t\tfor ( const [ key, value ] of toMap( keyOrObjectOrIterable ) ) {\n\t\t\t\tthis._setSelectionAttribute( key, value );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Removes attribute(s) with given key(s) from the selection.\n\t *\n\t * Remove one attribute:\n\t *\n\t *\t\twriter.removeSelectionAttribute( 'italic' );\n\t *\n\t * Remove multiple attributes:\n\t *\n\t *\t\twriter.removeSelectionAttribute( [ 'italic', 'bold' ] );\n\t *\n\t * @param {String|Iterable.<String>} keyOrIterableOfKeys Key of the attribute to remove or an iterable of attribute keys to remove.\n\t */\n\tpublic removeSelectionAttribute( keyOrIterableOfKeys: string | Iterable<string> ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( typeof keyOrIterableOfKeys === 'string' ) {\n\t\t\tthis._removeSelectionAttribute( keyOrIterableOfKeys );\n\t\t} else {\n\t\t\tfor ( const key of keyOrIterableOfKeys ) {\n\t\t\t\tthis._removeSelectionAttribute( key );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Temporarily changes the {@link module:engine/model/documentselection~DocumentSelection#isGravityOverridden gravity}\n\t * of the selection from left to right.\n\t *\n\t * The gravity defines from which direction the selection inherits its attributes. If it's the default left gravity,\n\t * then the selection (after being moved by the user) inherits attributes from its left-hand side.\n\t * This method allows to temporarily override this behavior by forcing the gravity to the right.\n\t *\n\t * For the following model fragment:\n\t *\n\t *\t\t<$text bold=\"true\" linkHref=\"url\">bar[]</$text><$text bold=\"true\">biz</$text>\n\t *\n\t * * Default gravity: selection will have the `bold` and `linkHref` attributes.\n\t * * Overridden gravity: selection will have `bold` attribute.\n\t *\n\t * **Note**: It returns an unique identifier which is required to restore the gravity. It guarantees the symmetry\n\t * of the process.\n\t *\n\t * @returns {String} The unique id which allows restoring the gravity.\n\t */\n\tpublic overrideSelectionGravity(): string {\n\t\treturn this.model.document.selection._overrideGravity();\n\t}\n\n\t/**\n\t * Restores {@link ~Writer#overrideSelectionGravity} gravity to default.\n\t *\n\t * Restoring the gravity is only possible using the unique identifier returned by\n\t * {@link ~Writer#overrideSelectionGravity}. Note that the gravity remains overridden as long as won't be restored\n\t * the same number of times it was overridden.\n\t *\n\t * @param {String} uid The unique id returned by {@link ~Writer#overrideSelectionGravity}.\n\t */\n\tpublic restoreSelectionGravity( uid: string ): void {\n\t\tthis.model.document.selection._restoreGravity( uid );\n\t}\n\n\t/**\n\t * @private\n\t * @param {String} key Key of the attribute to remove.\n\t * @param {*} value Attribute value.\n\t */\n\tpublic _setSelectionAttribute( key: string, value: unknown ): void {\n\t\tconst selection = this.model.document.selection;\n\n\t\t// Store attribute in parent element if the selection is collapsed in an empty node.\n\t\tif ( selection.isCollapsed && selection.anchor!.parent.isEmpty ) {\n\t\t\tconst storeKey = DocumentSelection._getStoreAttributeKey( key );\n\n\t\t\tthis.setAttribute( storeKey, value, selection.anchor!.parent as any );\n\t\t}\n\n\t\tselection._setAttribute( key, value );\n\t}\n\n\t/**\n\t * @private\n\t * @param {String} key Key of the attribute to remove.\n\t */\n\tprivate _removeSelectionAttribute( key: string ): void {\n\t\tconst selection = this.model.document.selection;\n\n\t\t// Remove stored attribute from parent element if the selection is collapsed in an empty node.\n\t\tif ( selection.isCollapsed && selection.anchor!.parent.isEmpty ) {\n\t\t\tconst storeKey = DocumentSelection._getStoreAttributeKey( key );\n\n\t\t\tthis.removeAttribute( storeKey, selection.anchor!.parent as any );\n\t\t}\n\n\t\tselection._removeAttribute( key );\n\t}\n\n\t/**\n\t * Throws `writer-detached-writer-tries-to-modify-model` error when the writer is used outside of the `change()` block.\n\t *\n\t * @private\n\t */\n\tprivate _assertWriterUsedCorrectly(): void {\n\t\t/**\n\t\t * Trying to use a writer outside a {@link module:engine/model/model~Model#change `change()`} or\n\t\t * {@link module:engine/model/model~Model#enqueueChange `enqueueChange()`} blocks.\n\t\t *\n\t\t * The writer can only be used inside these blocks which ensures that the model\n\t\t * can only be changed during such \"sessions\".\n\t\t *\n\t\t * @error writer-incorrect-use\n\t\t */\n\t\tif ( ( this.model as any )._currentWriter !== this ) {\n\t\t\tthrow new CKEditorError( 'writer-incorrect-use', this );\n\t\t}\n\t}\n\n\t/**\n\t * For given action `type` and `positionOrRange` where the action happens, this function finds all affected markers\n\t * and applies a marker operation with the new marker range equal to the current range. Thanks to this, the marker range\n\t * can be later correctly processed during undo.\n\t *\n\t * @private\n\t * @param {'move'|'merge'} type Writer action type.\n\t * @param {module:engine/model/position~Position|module:engine/model/range~Range} positionOrRange Position or range\n\t * where the writer action happens.\n\t */\n\tprivate _addOperationForAffectedMarkers(\n\t\ttype: 'move' | 'merge',\n\t\tpositionOrRange: Position | Range\n\t): void {\n\t\tfor ( const marker of this.model.markers ) {\n\t\t\tif ( !marker.managedUsingOperations ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst markerRange = marker.getRange();\n\t\t\tlet isAffected = false;\n\n\t\t\tif ( type === 'move' ) {\n\t\t\t\tconst range = positionOrRange as Range;\n\t\t\t\tisAffected =\n\t\t\t\t\trange.containsPosition( markerRange.start ) ||\n\t\t\t\t\trange.start.isEqual( markerRange.start ) ||\n\t\t\t\t\trange.containsPosition( markerRange.end ) ||\n\t\t\t\t\trange.end.isEqual( markerRange.end );\n\t\t\t} else {\n\t\t\t\t// if type === 'merge'.\n\t\t\t\tconst position = positionOrRange as Position;\n\t\t\t\tconst elementBefore = position.nodeBefore;\n\t\t\t\tconst elementAfter = position.nodeAfter;\n\n\t\t\t\t//               Start:  <p>Foo[</p><p>Bar]</p>\n\t\t\t\t//         After merge:  <p>Foo[Bar]</p>\n\t\t\t\t// After undoing split:  <p>Foo</p><p>[Bar]</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedInLeftElement = markerRange.start.parent == elementBefore && markerRange.start.isAtEnd;\n\n\t\t\t\t//               Start:  <p>[Foo</p><p>]Bar</p>\n\t\t\t\t//         After merge:  <p>[Foo]Bar</p>\n\t\t\t\t// After undoing split:  <p>[Foo]</p><p>Bar</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedInRightElement = markerRange.end.parent == elementAfter && markerRange.end.offset == 0;\n\n\t\t\t\t//               Start:  <p>[Foo</p>]<p>Bar</p>\n\t\t\t\t//         After merge:  <p>[Foo]Bar</p>\n\t\t\t\t// After undoing split:  <p>[Foo]</p><p>Bar</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedAfterLeftElement = markerRange.end.nodeAfter == elementAfter;\n\n\t\t\t\t//               Start:  <p>Foo</p>[<p>Bar]</p>\n\t\t\t\t//         After merge:  <p>Foo[Bar]</p>\n\t\t\t\t// After undoing split:  <p>Foo</p><p>[Bar]</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedBeforeRightElement = markerRange.start.nodeAfter == elementAfter;\n\n\t\t\t\tisAffected = affectedInLeftElement || affectedInRightElement || affectedAfterLeftElement || affectedBeforeRightElement;\n\t\t\t}\n\n\t\t\tif ( isAffected ) {\n\t\t\t\tthis.updateMarker( marker.name, { range: markerRange } );\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Sets given attribute to each node in given range. When attribute value is null then attribute will be removed.\n//\n// Because attribute operation needs to have the same attribute value on the whole range, this function splits\n// the range into smaller parts.\n//\n// Given `range` must be flat.\n//\n// @private\n// @param {module:engine/model/writer~Writer} writer\n// @param {String} key Attribute key.\n// @param {*} value Attribute new value.\n// @param {module:engine/model/range~Range} range Model range on which the attribute will be set.\nfunction setAttributeOnRange( writer: Writer, key: string, value: unknown, range: Range ) {\n\tconst model = writer.model;\n\tconst doc = model.document;\n\n\t// Position of the last split, the beginning of the new range.\n\tlet lastSplitPosition = range.start;\n\n\t// Currently position in the scanning range. Because we need value after the position, it is not a current\n\t// position of the iterator but the previous one (we need to iterate one more time to get the value after).\n\tlet position: Position | undefined;\n\n\t// Value before the currently position.\n\tlet valueBefore: unknown;\n\n\t// Value after the currently position.\n\tlet valueAfter;\n\n\tfor ( const val of range.getWalker( { shallow: true } ) ) {\n\t\tvalueAfter = val.item.getAttribute( key );\n\n\t\t// At the first run of the iterator the position in undefined. We also do not have a valueBefore, but\n\t\t// because valueAfter may be null, valueBefore may be equal valueAfter ( undefined == null ).\n\t\tif ( position && valueBefore != valueAfter ) {\n\t\t\t// if valueBefore == value there is nothing to change, so we add operation only if these values are different.\n\t\t\tif ( valueBefore != value ) {\n\t\t\t\taddOperation();\n\t\t\t}\n\n\t\t\tlastSplitPosition = position;\n\t\t}\n\n\t\tposition = val.nextPosition;\n\t\tvalueBefore = valueAfter;\n\t}\n\n\t// Because position in the loop is not the iterator position (see let position comment), the last position in\n\t// the while loop will be last but one position in the range. We need to check the last position manually.\n\tif ( position instanceof Position && position != lastSplitPosition && valueBefore != value ) {\n\t\taddOperation();\n\t}\n\n\tfunction addOperation() {\n\t\tconst range = new Range( lastSplitPosition, position );\n\t\tconst version = range.root.document ? doc.version : null;\n\t\tconst operation = new AttributeOperation( range, key, valueBefore, value, version );\n\n\t\twriter.batch.addOperation( operation );\n\t\tmodel.applyOperation( operation );\n\t}\n}\n\n// Sets given attribute to the given node. When attribute value is null then attribute will be removed.\n//\n// @private\n// @param {module:engine/model/writer~Writer} writer\n// @param {String} key Attribute key.\n// @param {*} value Attribute new value.\n// @param {module:engine/model/item~Item} item Model item on which the attribute will be set.\nfunction setAttributeOnItem( writer: Writer, key: string, value: unknown, item: Item ) {\n\tconst model = writer.model;\n\tconst doc = model.document;\n\tconst previousValue = item.getAttribute( key );\n\tlet range, operation;\n\n\tif ( previousValue != value ) {\n\t\tconst isRootChanged = item.root === item;\n\n\t\tif ( isRootChanged ) {\n\t\t\t// If we change attributes of root element, we have to use `RootAttributeOperation`.\n\t\t\tconst version = item.document ? doc.version : null;\n\n\t\t\toperation = new RootAttributeOperation( item as any, key, previousValue, value, version );\n\t\t} else {\n\t\t\trange = new Range( Position._createBefore( item ), writer.createPositionAfter( item ) );\n\n\t\t\tconst version = range.root.document ? doc.version : null;\n\n\t\t\toperation = new AttributeOperation( range, key, previousValue, value, version );\n\t\t}\n\n\t\twriter.batch.addOperation( operation );\n\t\tmodel.applyOperation( operation );\n\t}\n}\n\n// Creates and applies marker operation to {@link module:engine/model/operation/operation~Operation operation}.\n//\n// @private\n// @param {module:engine/model/writer~Writer} writer\n// @param {String} name Marker name.\n// @param {module:engine/model/range~Range} oldRange Marker range before the change.\n// @param {module:engine/model/range~Range} newRange Marker range after the change.\n// @param {Boolean} affectsData\nfunction applyMarkerOperation(\n\twriter: Writer,\n\tname: string,\n\toldRange: Range | null,\n\tnewRange: Range | null,\n\taffectsData: boolean | undefined\n) {\n\tconst model = writer.model;\n\tconst doc = model.document;\n\n\tconst operation = new MarkerOperation( name, oldRange, newRange, model.markers, !!affectsData, doc.version );\n\n\twriter.batch.addOperation( operation );\n\tmodel.applyOperation( operation );\n}\n\n// Creates `MoveOperation` or `DetachOperation` that removes `howMany` nodes starting from `position`.\n// The operation will be applied on given model instance and added to given operation instance.\n//\n// @private\n// @param {module:engine/model/position~Position} position Position from which nodes are removed.\n// @param {Number} howMany Number of nodes to remove.\n// @param {Batch} batch Batch to which the operation will be added.\n// @param {module:engine/model/model~Model} model Model instance on which operation will be applied.\nfunction applyRemoveOperation( position: Position, howMany: number, batch: Batch, model: Model ) {\n\tlet operation;\n\n\tif ( position.root.document ) {\n\t\tconst doc = model.document;\n\t\tconst graveyardPosition = new Position( doc.graveyard, [ 0 ] );\n\n\t\toperation = new MoveOperation( position, howMany, graveyardPosition, doc.version );\n\t} else {\n\t\toperation = new DetachOperation( position, howMany );\n\t}\n\n\tbatch.addOperation( operation );\n\tmodel.applyOperation( operation );\n}\n\n// Returns `true` if both root elements are the same element or both are documents root elements.\n//\n// Elements in the same tree can be moved (for instance you can move element form one documents root to another, or\n// within the same document fragment), but when element supposed to be moved from document fragment to the document, or\n// to another document it should be removed and inserted to avoid problems with OT. This is because features like undo or\n// collaboration may track changes on the document but ignore changes on detached fragments and should not get\n// unexpected `move` operation.\nfunction isSameTree( rootA: Node | DocumentFragment, rootB: Node | DocumentFragment ): boolean {\n\t// If it is the same root this is the same tree.\n\tif ( rootA === rootB ) {\n\t\treturn true;\n\t}\n\n\t// If both roots are documents root it is operation within the document what we still treat as the same tree.\n\tif ( rootA instanceof RootElement && rootB instanceof RootElement ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/selection-post-fixer\n */\n\nimport Position from '../position';\nimport Range from '../range';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Model from '../model';\nimport type Node from '../node';\nimport type Schema from '../schema';\nimport type Writer from '../writer';\nimport type Element from '../element';\n\n/**\n * Injects selection post-fixer to the model.\n *\n * The role of the selection post-fixer is to ensure that the selection is in a correct place\n * after a {@link module:engine/model/model~Model#change `change()`} block was executed.\n *\n * The correct position means that:\n *\n * * All collapsed selection ranges are in a place where the {@link module:engine/model/schema~Schema}\n * allows a `$text`.\n * * None of the selection's non-collapsed ranges crosses a {@link module:engine/model/schema~Schema#isLimit limit element}\n * boundary (a range must be rooted within one limit element).\n * * Only {@link module:engine/model/schema~Schema#isSelectable selectable elements} can be selected from the outside\n * (e.g. `[<paragraph>foo</paragraph>]` is invalid). This rule applies independently to both selection ends, so this\n * selection is correct: `<paragraph>f[oo</paragraph><imageBlock></imageBlock>]`.\n *\n * If the position is not correct, the post-fixer will automatically correct it.\n *\n * ## Fixing a non-collapsed selection\n *\n * See as an example a selection that starts in a P1 element and ends inside the text of a TD element\n * (`[` and `]` are range boundaries and `(l)` denotes an element defined as `isLimit=true`):\n *\n *\t\troot\n *\t\t |- element P1\n *\t\t |   |- \"foo\"                                      root\n *\t\t |- element TABLE (l)                   P1         TABLE             P2\n *\t\t |   |- element TR (l)                 f o[o     TR      TR         b a r\n *\t\t |   |   |- element TD (l)                       TD      TD\n *\t\t |   |       |- \"aaa\"                          a]a a    b b b\n *\t\t |   |- element TR (l)\n *\t\t |   |   |- element TD (l)                           ||\n *\t\t |   |       |- \"bbb\"                                ||\n *\t\t |- element P2                                       VV\n *\t\t |   |- \"bar\"\n *\t\t                                                   root\n *\t\t                                        P1         TABLE]            P2\n *\t\t                                       f o[o     TR      TR         b a r\n *\t\t                                                 TD      TD\n *\t\t                                               a a a    b b b\n *\n * In the example above, the TABLE, TR and TD are defined as `isLimit=true` in the schema. The range which is not contained within\n * a single limit element must be expanded to select the outermost limit element. The range end is inside the text node of the TD element.\n * As the TD element is a child of the TR and TABLE elements, where both are defined as `isLimit=true` in the schema, the range must be\n * expanded to select the whole TABLE element.\n *\n * **Note** If the selection contains multiple ranges, the method returns a minimal set of ranges that are not intersecting after expanding\n * them to select `isLimit=true` elements.\n *\n * @param {module:engine/model/model~Model} model\n */\nexport function injectSelectionPostFixer( model: Model ): void {\n\tmodel.document.registerPostFixer( writer => selectionPostFixer( writer, model ) );\n}\n\n// The selection post-fixer.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/model~Model} model\nfunction selectionPostFixer( writer: Writer, model: Model ): boolean {\n\tconst selection = model.document.selection;\n\tconst schema = model.schema;\n\n\tconst ranges = [];\n\n\tlet wasFixed = false;\n\n\tfor ( const modelRange of selection.getRanges() ) {\n\t\t// Go through all ranges in selection and try fixing each of them.\n\t\t// Those ranges might overlap but will be corrected later.\n\t\tconst correctedRange = tryFixingRange( modelRange, schema );\n\n\t\t// \"Selection fixing\" algorithms sometimes get lost. In consequence, it may happen\n\t\t// that a new range is returned but, in fact, it has the same positions as the original\n\t\t// range anyway. If this range is not discarded, a new selection will be set and that,\n\t\t// for instance, would destroy the selection attributes. Let's make sure that the post-fixer\n\t\t// actually worked first before setting a new selection.\n\t\t//\n\t\t// https://github.com/ckeditor/ckeditor5/issues/6693\n\t\tif ( correctedRange && !correctedRange.isEqual( modelRange ) ) {\n\t\t\tranges.push( correctedRange );\n\t\t\twasFixed = true;\n\t\t} else {\n\t\t\tranges.push( modelRange );\n\t\t}\n\t}\n\n\t// If any of ranges were corrected update the selection.\n\tif ( wasFixed ) {\n\t\twriter.setSelection( mergeIntersectingRanges( ranges ), { backward: selection.isBackward } );\n\t}\n\n\treturn false;\n}\n\n// Tries fixing a range if it's incorrect.\n//\n// @param {module:engine/model/range~Range} range\n// @param {module:engine/model/schema~Schema} schema\n// @returns {module:engine/model/range~Range|null} Returns fixed range or null if range is valid.\nfunction tryFixingRange( range: Range, schema: Schema ) {\n\tif ( range.isCollapsed ) {\n\t\treturn tryFixingCollapsedRange( range, schema );\n\t}\n\n\treturn tryFixingNonCollapsedRage( range, schema );\n}\n\n// Tries to fix collapsed ranges.\n//\n// * Fixes situation when a range is in a place where $text is not allowed\n//\n// @param {module:engine/model/range~Range} range Collapsed range to fix.\n// @param {module:engine/model/schema~Schema} schema\n// @returns {module:engine/model/range~Range|null} Returns fixed range or null if range is valid.\nfunction tryFixingCollapsedRange( range: Range, schema: Schema ) {\n\tconst originalPosition = range.start;\n\n\tconst nearestSelectionRange = schema.getNearestSelectionRange( originalPosition );\n\n\t// This might be null, i.e. when the editor data is empty or the selection is inside a limit element\n\t// that doesn't allow text inside.\n\t// In the first case, there is no need to fix the selection range.\n\t// In the second, let's go up to the outer selectable element\n\tif ( !nearestSelectionRange ) {\n\t\tconst ancestorObject = originalPosition.getAncestors().reverse().find( ( item ): item is Element => schema.isObject( item ) );\n\n\t\tif ( ancestorObject ) {\n\t\t\treturn Range._createOn( ancestorObject );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\tif ( !nearestSelectionRange.isCollapsed ) {\n\t\treturn nearestSelectionRange;\n\t}\n\n\tconst fixedPosition = nearestSelectionRange.start;\n\n\t// Fixed position is the same as original - no need to return corrected range.\n\tif ( originalPosition.isEqual( fixedPosition ) ) {\n\t\treturn null;\n\t}\n\n\treturn new Range( fixedPosition );\n}\n\n// Tries to fix an expanded range.\n//\n// @param {module:engine/model/range~Range} range Expanded range to fix.\n// @param {module:engine/model/schema~Schema} schema\n// @returns {module:engine/model/range~Range|null} Returns fixed range or null if range is valid.\nfunction tryFixingNonCollapsedRage( range: Range, schema: Schema ) {\n\tconst { start, end } = range;\n\n\tconst isTextAllowedOnStart = schema.checkChild( start, '$text' );\n\tconst isTextAllowedOnEnd = schema.checkChild( end, '$text' );\n\n\tconst startLimitElement = schema.getLimitElement( start );\n\tconst endLimitElement = schema.getLimitElement( end );\n\n\t// Ranges which both end are inside the same limit element (or root) might needs only minor fix.\n\tif ( startLimitElement === endLimitElement ) {\n\t\t// Range is valid when both position allows to place a text:\n\t\t// - <block>f[oobarba]z</block>\n\t\t// This would be \"fixed\" by a next check but as it will be the same it's better to return null so the selection stays the same.\n\t\tif ( isTextAllowedOnStart && isTextAllowedOnEnd ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// Range that is on non-limit element (or is partially) must be fixed so it is placed inside the block around $text:\n\t\t// - [<block>foo</block>]    ->    <block>[foo]</block>\n\t\t// - [<block>foo]</block>    ->    <block>[foo]</block>\n\t\t// - <block>f[oo</block>]    ->    <block>f[oo]</block>\n\t\t// - [<block>foo</block><selectable></selectable>]    ->    <block>[foo</block><selectable></selectable>]\n\t\tif ( checkSelectionOnNonLimitElements( start, end, schema ) ) {\n\t\t\tconst isStartBeforeSelectable = start.nodeAfter && schema.isSelectable( start.nodeAfter );\n\t\t\tconst fixedStart = isStartBeforeSelectable ? null : schema.getNearestSelectionRange( start, 'forward' );\n\n\t\t\tconst isEndAfterSelectable = end.nodeBefore && schema.isSelectable( end.nodeBefore );\n\t\t\tconst fixedEnd = isEndAfterSelectable ? null : schema.getNearestSelectionRange( end, 'backward' );\n\n\t\t\t// The schema.getNearestSelectionRange might return null - if that happens use original position.\n\t\t\tconst rangeStart = fixedStart ? fixedStart.start : start;\n\t\t\tconst rangeEnd = fixedEnd ? fixedEnd.end : end;\n\n\t\t\treturn new Range( rangeStart, rangeEnd );\n\t\t}\n\t}\n\n\tconst isStartInLimit = startLimitElement && !startLimitElement.is( 'rootElement' );\n\tconst isEndInLimit = endLimitElement && !endLimitElement.is( 'rootElement' );\n\n\t// At this point we eliminated valid positions on text nodes so if one of range positions is placed inside a limit element\n\t// then the range crossed limit element boundaries and needs to be fixed.\n\tif ( isStartInLimit || isEndInLimit ) {\n\t\tconst bothInSameParent = ( start.nodeAfter && end.nodeBefore ) && start.nodeAfter.parent === end.nodeBefore.parent;\n\n\t\tconst expandStart = isStartInLimit && ( !bothInSameParent || !isSelectable( start.nodeAfter, schema ) );\n\t\tconst expandEnd = isEndInLimit && ( !bothInSameParent || !isSelectable( end.nodeBefore, schema ) );\n\n\t\t// Although we've already found limit element on start/end positions we must find the outer-most limit element.\n\t\t// as limit elements might be nested directly inside (ie table > tableRow > tableCell).\n\t\tlet fixedStart = start;\n\t\tlet fixedEnd = end;\n\n\t\tif ( expandStart ) {\n\t\t\tfixedStart = Position._createBefore( findOutermostLimitAncestor( startLimitElement, schema ) );\n\t\t}\n\n\t\tif ( expandEnd ) {\n\t\t\tfixedEnd = Position._createAfter( findOutermostLimitAncestor( endLimitElement, schema ) );\n\t\t}\n\n\t\treturn new Range( fixedStart, fixedEnd );\n\t}\n\n\t// Range was not fixed at this point so it is valid - ie it was placed around limit element already.\n\treturn null;\n}\n\n// Finds the outer-most ancestor.\n//\n// @param {module:engine/model/node~Node} startingNode\n// @param {module:engine/model/schema~Schema} schema\n// @returns {module:engine/model/node~Node}\nfunction findOutermostLimitAncestor( startingNode: Node, schema: Schema ): Node {\n\tlet isLimitNode = startingNode;\n\tlet parent: Node | DocumentFragment = isLimitNode;\n\n\t// Find outer most isLimit block as such blocks might be nested (ie. in tables).\n\twhile ( schema.isLimit( parent ) && parent.parent ) {\n\t\tisLimitNode = parent;\n\t\tparent = parent.parent;\n\t}\n\n\treturn isLimitNode;\n}\n\n// Checks whether any of range boundaries is placed around non-limit elements.\n//\n// @param {module:engine/model/position~Position} start\n// @param {module:engine/model/position~Position} end\n// @param {module:engine/model/schema~Schema} schema\n// @returns {Boolean}\nfunction checkSelectionOnNonLimitElements( start: Position, end: Position, schema: Schema ) {\n\tconst startIsOnBlock = ( start.nodeAfter && !schema.isLimit( start.nodeAfter ) ) || schema.checkChild( start, '$text' );\n\tconst endIsOnBlock = ( end.nodeBefore && !schema.isLimit( end.nodeBefore ) ) || schema.checkChild( end, '$text' );\n\n\t// We should fix such selection when one of those nodes needs fixing.\n\treturn startIsOnBlock || endIsOnBlock;\n}\n\n/**\n * Returns a minimal non-intersecting array of ranges without duplicates.\n *\n * @param {Array.<module:engine/model/range~Range>} Ranges to merge.\n * @returns {Array.<module:engine/model/range~Range>} Array of unique and nonIntersecting ranges.\n */\nexport function mergeIntersectingRanges( ranges: Array<Range> ): Array<Range> {\n\tconst rangesToMerge = [ ...ranges ];\n\tconst rangeIndexesToRemove = new Set();\n\tlet currentRangeIndex = 1;\n\n\twhile ( currentRangeIndex < rangesToMerge.length ) {\n\t\tconst currentRange = rangesToMerge[ currentRangeIndex ];\n\t\tconst previousRanges = rangesToMerge.slice( 0, currentRangeIndex );\n\n\t\tfor ( const [ previousRangeIndex, previousRange ] of previousRanges.entries() ) {\n\t\t\tif ( rangeIndexesToRemove.has( previousRangeIndex ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( currentRange.isEqual( previousRange ) ) {\n\t\t\t\trangeIndexesToRemove.add( previousRangeIndex );\n\t\t\t} else if ( currentRange.isIntersecting( previousRange ) ) {\n\t\t\t\trangeIndexesToRemove.add( previousRangeIndex );\n\t\t\t\trangeIndexesToRemove.add( currentRangeIndex );\n\n\t\t\t\tconst mergedRange = currentRange.getJoined( previousRange );\n\t\t\t\trangesToMerge.push( mergedRange! );\n\t\t\t}\n\t\t}\n\n\t\tcurrentRangeIndex++;\n\t}\n\n\tconst nonIntersectingRanges = rangesToMerge.filter( ( _, index ) => !rangeIndexesToRemove.has( index ) );\n\n\treturn nonIntersectingRanges;\n}\n\n// Checks if node exists and if it's a selectable.\n//\n// @param {module:engine/model/node~Node} node\n// @param {module:engine/model/schema~Schema} schema\n// @returns {Boolean}\nfunction isSelectable( node: Node, schema: Schema ) {\n\treturn node && schema.isSelectable( node );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/deletecontent\n */\n\nimport DocumentSelection from '../documentselection';\nimport LivePosition from '../liveposition';\nimport Range from '../range';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Element from '../element';\nimport type Model from '../model';\nimport type Position from '../position';\nimport type Schema from '../schema';\nimport type Selection from '../selection';\nimport type Writer from '../writer';\n\n/**\n * Deletes content of the selection and merge siblings. The resulting selection is always collapsed.\n *\n * **Note:** Use {@link module:engine/model/model~Model#deleteContent} instead of this function.\n * This function is only exposed to be reusable in algorithms\n * which change the {@link module:engine/model/model~Model#deleteContent}\n * method's behavior.\n *\n * @param {module:engine/model/model~Model} model The model in context of which the insertion\n * should be performed.\n * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n * Selection of which the content should be deleted.\n * @param {Object} [options]\n * @param {Boolean} [options.leaveUnmerged=false] Whether to merge elements after removing the content of the selection.\n *\n * For example `<heading>x[x</heading><paragraph>y]y</paragraph>` will become:\n *\n * * `<heading>x^y</heading>` with the option disabled (`leaveUnmerged == false`)\n * * `<heading>x^</heading><paragraph>y</paragraph>` with enabled (`leaveUnmerged == true`).\n *\n * Note: {@link module:engine/model/schema~Schema#isObject object} and {@link module:engine/model/schema~Schema#isLimit limit}\n * elements will not be merged.\n *\n * @param {Boolean} [options.doNotResetEntireContent=false] Whether to skip replacing the entire content with a\n * paragraph when the entire content was selected.\n *\n * For example `<heading>[x</heading><paragraph>y]</paragraph>` will become:\n *\n * * `<paragraph>^</paragraph>` with the option disabled (`doNotResetEntireContent == false`)\n * * `<heading>^</heading>` with enabled (`doNotResetEntireContent == true`).\n *\n * @param {Boolean} [options.doNotAutoparagraph=false] Whether to create a paragraph if after content deletion selection is moved\n * to a place where text cannot be inserted.\n *\n * For example `<paragraph>x</paragraph>[<imageBlock src=\"foo.jpg\"></imageBlock>]` will become:\n *\n * * `<paragraph>x</paragraph><paragraph>[]</paragraph>` with the option disabled (`doNotAutoparagraph == false`)\n * * `<paragraph>x</paragraph>[]` with the option enabled (`doNotAutoparagraph == true`).\n *\n * If you use this option you need to make sure to handle invalid selections yourself or leave\n * them to the selection post-fixer (may not always work).\n *\n * **Note:** If there is no valid position for the selection, the paragraph will always be created:\n *\n * `[<imageBlock src=\"foo.jpg\"></imageBlock>]` -> `<paragraph>[]</paragraph>`.\n */\nexport default function deleteContent(\n\tmodel: Model,\n\tselection: Selection | DocumentSelection,\n\toptions: { leaveUnmerged?: boolean; doNotResetEntireContent?: boolean; doNotAutoparagraph?: boolean } = {}\n): void {\n\tif ( selection.isCollapsed ) {\n\t\treturn;\n\t}\n\n\tconst selRange = selection.getFirstRange()!;\n\n\t// If the selection is already removed, don't do anything.\n\tif ( selRange.root.rootName == '$graveyard' ) {\n\t\treturn;\n\t}\n\n\tconst schema = model.schema;\n\n\tmodel.change( writer => {\n\t\t// 1. Replace the entire content with paragraph.\n\t\t// See: https://github.com/ckeditor/ckeditor5-engine/issues/1012#issuecomment-315017594.\n\t\tif ( !options.doNotResetEntireContent && shouldEntireContentBeReplacedWithParagraph( schema, selection ) ) {\n\t\t\treplaceEntireContentWithParagraph( writer, selection );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Collect attributes to copy in case of autoparagraphing.\n\t\tconst attributesForAutoparagraph = {};\n\n\t\tif ( !options.doNotAutoparagraph ) {\n\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\tif ( selectedElement ) {\n\t\t\t\tObject.assign( attributesForAutoparagraph, schema.getAttributesWithProperty( selectedElement, 'copyOnReplace', true ) );\n\t\t\t}\n\t\t}\n\n\t\t// Get the live positions for the range adjusted to span only blocks selected from the user perspective.\n\t\tconst [ startPosition, endPosition ] = getLivePositionsForSelectedBlocks( selRange );\n\n\t\t// 2. Remove the content if there is any.\n\t\tif ( !startPosition.isTouching( endPosition ) ) {\n\t\t\twriter.remove( writer.createRange( startPosition, endPosition ) );\n\t\t}\n\n\t\t// 3. Merge elements in the right branch to the elements in the left branch.\n\t\t// The only reasonable (in terms of data and selection correctness) case in which we need to do that is:\n\t\t//\n\t\t// <heading type=1>Fo[</heading><paragraph>]ar</paragraph> => <heading type=1>Fo^ar</heading>\n\t\t//\n\t\t// However, the algorithm supports also merging deeper structures (up to the depth of the shallower branch),\n\t\t// as it's hard to imagine what should actually be the default behavior. Usually, specific features will\n\t\t// want to override that behavior anyway.\n\t\tif ( !options.leaveUnmerged ) {\n\t\t\tmergeBranches( writer, startPosition, endPosition );\n\n\t\t\t// TMP this will be replaced with a postfixer.\n\t\t\t// We need to check and strip disallowed attributes in all nested nodes because after merge\n\t\t\t// some attributes could end up in a path where are disallowed.\n\t\t\t//\n\t\t\t// e.g. bold is disallowed for <H1>\n\t\t\t// <h1>Fo{o</h1><p>b}a<b>r</b><p> -> <h1>Fo{}a<b>r</b><h1> -> <h1>Fo{}ar<h1>.\n\t\t\tschema.removeDisallowedAttributes( startPosition.parent.getChildren(), writer );\n\t\t}\n\n\t\tcollapseSelectionAt( writer, selection, startPosition );\n\n\t\t// 4. Add a paragraph to set selection in it.\n\t\t// Check if a text is allowed in the new container. If not, try to create a new paragraph (if it's allowed here).\n\t\t// If autoparagraphing is off, we assume that you know what you do so we leave the selection wherever it was.\n\t\tif ( !options.doNotAutoparagraph && shouldAutoparagraph( schema, startPosition ) ) {\n\t\t\tinsertParagraph( writer, startPosition, selection, attributesForAutoparagraph );\n\t\t}\n\n\t\tstartPosition.detach();\n\t\tendPosition.detach();\n\t} );\n}\n\n// Returns the live positions for the range adjusted to span only blocks selected from the user perspective. Example:\n//\n//     <heading1>[foo</heading1>\n//     <paragraph>bar</paragraph>\n//     <heading1>]abc</heading1>  <-- this block is not considered as selected\n//\n// This is the same behavior as in Selection#getSelectedBlocks() \"special case\".\nfunction getLivePositionsForSelectedBlocks( range: Range ): [ startPosition: LivePosition, endPosition: LivePosition ] {\n\tconst model = range.root.document!.model;\n\n\tconst startPosition = range.start;\n\tlet endPosition = range.end;\n\n\t// If the end of selection is at the start position of last block in the selection, then\n\t// shrink it to not include that trailing block. Note that this should happen only for not empty selection.\n\tif ( model.hasContent( range, { ignoreMarkers: true } ) ) {\n\t\tconst endBlock = getParentBlock( endPosition );\n\n\t\tif ( endBlock && endPosition.isTouching( model.createPositionAt( endBlock, 0 ) ) ) {\n\t\t\t// Create forward selection as a probe to find a valid position after excluding last block from the range.\n\t\t\tconst selection = model.createSelection( range );\n\n\t\t\t// Modify the forward selection in backward direction to shrink it and remove first position of following block from it.\n\t\t\t// This is how modifySelection works and here we are making use of it.\n\t\t\tmodel.modifySelection( selection, { direction: 'backward' } );\n\n\t\t\tconst newEndPosition = selection.getLastPosition()!;\n\n\t\t\t// For such a model and selection:\n\t\t\t//     <paragraph>A[</paragraph><imageBlock></imageBlock><paragraph>]B</paragraph>\n\t\t\t//\n\t\t\t// After modifySelection(), we would end up with this:\n\t\t\t//     <paragraph>A[</paragraph>]<imageBlock></imageBlock><paragraph>B</paragraph>\n\t\t\t//\n\t\t\t// So we need to check if there is no content in the skipped range (because we want to include the <imageBlock>).\n\t\t\tconst skippedRange = model.createRange( newEndPosition, endPosition );\n\n\t\t\tif ( !model.hasContent( skippedRange, { ignoreMarkers: true } ) ) {\n\t\t\t\tendPosition = newEndPosition;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn [\n\t\tLivePosition.fromPosition( startPosition, 'toPrevious' ),\n\t\tLivePosition.fromPosition( endPosition, 'toNext' )\n\t];\n}\n\n// Finds the lowest element in position's ancestors which is a block.\n// Returns null if a limit element is encountered before reaching a block element.\nfunction getParentBlock( position: Position ): Element | null | undefined {\n\tconst element = position.parent;\n\tconst schema = element.root.document!.model.schema;\n\tconst ancestors = element.getAncestors( { parentFirst: true, includeSelf: true } );\n\n\tfor ( const element of ancestors ) {\n\t\tif ( schema.isLimit( element ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( schema.isBlock( element ) ) {\n\t\t\treturn element as Element;\n\t\t}\n\t}\n}\n\n// This function is a result of reaching the Ballmer's peak for just the right amount of time.\n// Even I had troubles documenting it after a while and after reading it again I couldn't believe that it really works.\nfunction mergeBranches( writer: Writer, startPosition: Position, endPosition: Position ) {\n\tconst model = writer.model;\n\n\t// Verify if there is a need and possibility to merge.\n\tif ( !checkShouldMerge( writer.model.schema, startPosition, endPosition ) ) {\n\t\treturn;\n\t}\n\n\t// If the start element on the common ancestor level is empty, and the end element on the same level is not empty\n\t// then merge those to the right element so that it's properties are preserved (name, attributes).\n\t// Because of OT merging is used instead of removing elements.\n\t//\n\t// Merge left:\n\t//     <heading1>foo[</heading1>    ->  <heading1>foo[]bar</heading1>\n\t//     <paragraph>]bar</paragraph>  ->               --^\n\t//\n\t// Merge right:\n\t//     <heading1>[</heading1>       ->\n\t//     <paragraph>]bar</paragraph>  ->  <paragraph>[]bar</paragraph>\n\t//\n\t// Merge left:\n\t//     <blockQuote>                     ->  <blockQuote>\n\t//         <heading1>foo[</heading1>    ->      <heading1>foo[]bar</heading1>\n\t//         <paragraph>]bar</paragraph>  ->                   --^\n\t//     </blockQuote>                    ->  </blockQuote>\n\t//\n\t// Merge right:\n\t//     <blockQuote>                     ->  <blockQuote>\n\t//         <heading1>[</heading1>       ->\n\t//         <paragraph>]bar</paragraph>  ->      <paragraph>[]bar</paragraph>\n\t//     </blockQuote>                    ->  </blockQuote>\n\n\t// Merging should not go deeper than common ancestor.\n\tconst [ startAncestor, endAncestor ] = getAncestorsJustBelowCommonAncestor( startPosition, endPosition );\n\n\t// Branches can't be merged if one of the positions is directly inside a common ancestor.\n\t//\n\t// Example:\n\t//     <blockQuote>\n\t//         <paragraph>[foo</paragraph>]\n\t//         <table> ... </table>\n\t//     <blockQuote>\n\t//\n\tif ( !startAncestor || !endAncestor ) {\n\t\treturn;\n\t}\n\n\tif ( !model.hasContent( startAncestor, { ignoreMarkers: true } ) && model.hasContent( endAncestor, { ignoreMarkers: true } ) ) {\n\t\tmergeBranchesRight( writer, startPosition, endPosition, startAncestor.parent );\n\t} else {\n\t\tmergeBranchesLeft( writer, startPosition, endPosition, startAncestor.parent );\n\t}\n}\n\n// Merging blocks to the left (properties of the left block are preserved).\n// Simple example:\n//     <heading1>foo[</heading1>    ->  <heading1>foo[bar</heading1>]\n//     <paragraph>]bar</paragraph>  ->              --^\n//\n// Nested example:\n//     <blockQuote>                     ->  <blockQuote>\n//         <heading1>foo[</heading1>    ->      <heading1>foo[bar</heading1>\n//     </blockQuote>                    ->  </blockQuote>]    ^\n//     <blockBlock>                     ->                    |\n//         <paragraph>]bar</paragraph>  ->                 ---\n//     </blockBlock>                    ->\n//\nfunction mergeBranchesLeft(\n\twriter: Writer,\n\tstartPosition: Position,\n\tendPosition: Position,\n\tcommonAncestor: Element | DocumentFragment | null\n) {\n\tconst startElement = startPosition.parent as Element;\n\tconst endElement = endPosition.parent as Element;\n\n\t// Merging reached the common ancestor element, stop here.\n\tif ( startElement == commonAncestor || endElement == commonAncestor ) {\n\t\treturn;\n\t}\n\n\t// Remember next positions to merge in next recursive step (also used as modification points pointers).\n\tstartPosition = writer.createPositionAfter( startElement );\n\tendPosition = writer.createPositionBefore( endElement );\n\n\t// Move endElement just after startElement if they aren't siblings.\n\tif ( !endPosition.isEqual( startPosition ) ) {\n\t\t//\n\t\t//     <blockQuote>                     ->  <blockQuote>\n\t\t//         <heading1>foo[</heading1>    ->      <heading1>foo</heading1>[<paragraph>bar</paragraph>\n\t\t//     </blockQuote>                    ->  </blockQuote>                ^\n\t\t//     <blockBlock>                     ->  <blockBlock>                 |\n\t\t//         <paragraph>]bar</paragraph>  ->      ]                     ---\n\t\t//     </blockBlock>                    ->  </blockBlock>\n\t\t//\n\t\twriter.insert( endElement, startPosition );\n\t}\n\n\t// Merge two siblings (nodes on sides of startPosition):\n\t//\n\t//     <blockQuote>                                             ->  <blockQuote>\n\t//         <heading1>foo</heading1>[<paragraph>bar</paragraph>  ->      <heading1>foo[bar</heading1>\n\t//     </blockQuote>                                            ->  </blockQuote>\n\t//     <blockBlock>                                             ->  <blockBlock>\n\t//         ]                                                    ->      ]\n\t//     </blockBlock>                                            ->  </blockBlock>\n\t//\n\t// Or in simple case (without moving elements in above if):\n\t//     <heading1>foo</heading1>[<paragraph>bar</paragraph>]  ->  <heading1>foo[bar</heading1>]\n\t//\n\twriter.merge( startPosition );\n\n\t// Remove empty end ancestors:\n\t//\n\t//     <blockQuote>                      ->  <blockQuote>\n\t//         <heading1>foo[bar</heading1>  ->      <heading1>foo[bar</heading1>\n\t//     </blockQuote>                     ->  </blockQuote>\n\t//     <blockBlock>                      ->\n\t//         ]                             ->  ]\n\t//     </blockBlock>                     ->\n\t//\n\twhile ( endPosition.parent.isEmpty ) {\n\t\tconst parentToRemove = endPosition.parent as Element;\n\n\t\tendPosition = writer.createPositionBefore( parentToRemove );\n\n\t\twriter.remove( parentToRemove );\n\t}\n\n\t// Verify if there is a need and possibility to merge next level.\n\tif ( !checkShouldMerge( writer.model.schema, startPosition, endPosition ) ) {\n\t\treturn;\n\t}\n\n\t// Continue merging next level (blockQuote with blockBlock in the examples above if it would not be empty and got removed).\n\tmergeBranchesLeft( writer, startPosition, endPosition, commonAncestor );\n}\n\n// Merging blocks to the right (properties of the right block are preserved).\n// Simple example:\n//     <heading1>foo[</heading1>    ->            --v\n//     <paragraph>]bar</paragraph>  ->  [<paragraph>foo]bar</paragraph>\n//\n// Nested example:\n//     <blockQuote>                     ->\n//         <heading1>foo[</heading1>    ->              ---\n//     </blockQuote>                    ->                 |\n//     <blockBlock>                     ->  [<blockBlock>  v\n//         <paragraph>]bar</paragraph>  ->      <paragraph>foo]bar</paragraph>\n//     </blockBlock>                    ->  </blockBlock>\n//\nfunction mergeBranchesRight(\n\twriter: Writer,\n\tstartPosition: Position,\n\tendPosition: Position,\n\tcommonAncestor: Element | DocumentFragment | null\n) {\n\tconst startElement = startPosition.parent as Element;\n\tconst endElement = endPosition.parent as Element;\n\n\t// Merging reached the common ancestor element, stop here.\n\tif ( startElement == commonAncestor || endElement == commonAncestor ) {\n\t\treturn;\n\t}\n\n\t// Remember next positions to merge in next recursive step (also used as modification points pointers).\n\tstartPosition = writer.createPositionAfter( startElement );\n\tendPosition = writer.createPositionBefore( endElement );\n\n\t// Move startElement just before endElement if they aren't siblings.\n\tif ( !endPosition.isEqual( startPosition ) ) {\n\t\t//\n\t\t//     <blockQuote>                     ->  <blockQuote>\n\t\t//         <heading1>foo[</heading1>    ->      [                   ---\n\t\t//     </blockQuote>                    ->  </blockQuote>              |\n\t\t//     <blockBlock>                     ->  <blockBlock>               v\n\t\t//         <paragraph>]bar</paragraph>  ->      <heading1>foo</heading1>]<paragraph>bar</paragraph>\n\t\t//     </blockBlock>                    ->  </blockBlock>\n\t\t//\n\t\twriter.insert( startElement, endPosition );\n\t}\n\n\t// Remove empty end ancestors:\n\t//\n\t//     <blockQuote>                                             ->\n\t//         [                                                    ->  [\n\t//     </blockQuote>                                            ->\n\t//     <blockBlock>                                             ->  <blockBlock>\n\t//         <heading1>foo</heading1>]<paragraph>bar</paragraph>  ->      <heading1>foo</heading1>]<paragraph>bar</paragraph>\n\t//     </blockBlock>                                            ->  </blockBlock>\n\t//\n\twhile ( startPosition.parent.isEmpty ) {\n\t\tconst parentToRemove = startPosition.parent as Element;\n\n\t\tstartPosition = writer.createPositionBefore( parentToRemove );\n\n\t\twriter.remove( parentToRemove );\n\t}\n\n\t// Update endPosition after inserting and removing elements.\n\tendPosition = writer.createPositionBefore( endElement );\n\n\t// Merge right two siblings (nodes on sides of endPosition):\n\t//                                                              ->\n\t//     [                                                        ->  [\n\t//                                                              ->\n\t//     <blockBlock>                                             ->  <blockBlock>\n\t//         <heading1>foo</heading1>]<paragraph>bar</paragraph>  ->      <paragraph>foo]bar</paragraph>\n\t//     </blockBlock>                                            ->  </blockBlock>\n\t//\n\t// Or in simple case (without moving elements in above if):\n\t//     [<heading1>foo</heading1>]<paragraph>bar</paragraph>  ->  [<heading1>foo]bar</heading1>\n\t//\n\tmergeRight( writer, endPosition );\n\n\t// Verify if there is a need and possibility to merge next level.\n\tif ( !checkShouldMerge( writer.model.schema, startPosition, endPosition ) ) {\n\t\treturn;\n\t}\n\n\t// Continue merging next level (blockQuote with blockBlock in the examples above if it would not be empty and got removed).\n\tmergeBranchesRight( writer, startPosition, endPosition, commonAncestor );\n}\n\n// There is no right merge operation so we need to simulate it.\nfunction mergeRight( writer: Writer, position: Position ) {\n\tconst startElement: any = position.nodeBefore;\n\tconst endElement: any = position.nodeAfter;\n\n\tif ( startElement.name != endElement.name ) {\n\t\twriter.rename( startElement, endElement.name );\n\t}\n\n\twriter.clearAttributes( startElement );\n\twriter.setAttributes( Object.fromEntries( endElement.getAttributes() ), startElement );\n\n\twriter.merge( position );\n}\n\n// Verifies if merging is needed and possible. It's not needed if both positions are in the same element\n// and it's not possible if some element is a limit or the range crosses a limit element.\nfunction checkShouldMerge( schema: Schema, startPosition: Position, endPosition: Position ): boolean {\n\tconst startElement = startPosition.parent;\n\tconst endElement = endPosition.parent;\n\n\t// If both positions ended up in the same parent, then there's nothing more to merge:\n\t// <$root><p>x[</p><p>]y</p></$root> => <$root><p>xy</p>[]</$root>\n\tif ( startElement == endElement ) {\n\t\treturn false;\n\t}\n\n\t// If one of the positions is a limit element, then there's nothing to merge because we don't want to cross the limit boundaries.\n\tif ( schema.isLimit( startElement ) || schema.isLimit( endElement ) ) {\n\t\treturn false;\n\t}\n\n\t// Check if operations we'll need to do won't need to cross object or limit boundaries.\n\t// E.g., we can't merge endElement into startElement in this case:\n\t// <limit><startElement>x[</startElement></limit><endElement>]</endElement>\n\treturn isCrossingLimitElement( startPosition, endPosition, schema );\n}\n\n// Returns the elements that are the ancestors of the provided positions that are direct children of the common ancestor.\nfunction getAncestorsJustBelowCommonAncestor( positionA: Position, positionB: Position ) {\n\tconst ancestorsA = positionA.getAncestors();\n\tconst ancestorsB = positionB.getAncestors();\n\n\tlet i = 0;\n\n\twhile ( ancestorsA[ i ] && ancestorsA[ i ] == ancestorsB[ i ] ) {\n\t\ti++;\n\t}\n\n\treturn [ ancestorsA[ i ], ancestorsB[ i ] ];\n}\n\nfunction shouldAutoparagraph( schema: Schema, position: Position ) {\n\tconst isTextAllowed = schema.checkChild( position, '$text' );\n\tconst isParagraphAllowed = schema.checkChild( position, 'paragraph' );\n\n\treturn !isTextAllowed && isParagraphAllowed;\n}\n\n// Check if parents of two positions can be merged by checking if there are no limit/object\n// boundaries between those two positions.\n//\n// E.g. in <bQ><p>x[]</p></bQ><widget><caption>{}</caption></widget>\n// we'll check <p>, <bQ>, <widget> and <caption>.\n// Usually, widget and caption are marked as objects/limits in the schema, so in this case merging will be blocked.\nfunction isCrossingLimitElement( leftPos: Position, rightPos: Position, schema: Schema ) {\n\tconst rangeToCheck = new Range( leftPos, rightPos );\n\n\tfor ( const value of rangeToCheck.getWalker() ) {\n\t\tif ( schema.isLimit( value.item ) ) {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\treturn true;\n}\n\nfunction insertParagraph(\n\twriter: Writer,\n\tposition: Position,\n\tselection: Selection | DocumentSelection,\n\tattributes = {}\n) {\n\tconst paragraph = writer.createElement( 'paragraph' );\n\n\twriter.model.schema.setAllowedAttributes( paragraph, attributes, writer );\n\n\twriter.insert( paragraph, position );\n\n\tcollapseSelectionAt( writer, selection, writer.createPositionAt( paragraph, 0 ) );\n}\n\nfunction replaceEntireContentWithParagraph( writer: Writer, selection: Selection | DocumentSelection ) {\n\tconst limitElement = writer.model.schema.getLimitElement( selection );\n\n\twriter.remove( writer.createRangeIn( limitElement ) );\n\tinsertParagraph( writer, writer.createPositionAt( limitElement, 0 ), selection );\n}\n\n// We want to replace the entire content with a paragraph when:\n// * the entire content is selected,\n// * selection contains at least two elements,\n// * whether the paragraph is allowed in schema in the common ancestor.\nfunction shouldEntireContentBeReplacedWithParagraph( schema: Schema, selection: Selection | DocumentSelection ) {\n\tconst limitElement = schema.getLimitElement( selection );\n\n\tif ( !selection.containsEntireContent( limitElement ) ) {\n\t\treturn false;\n\t}\n\n\tconst range = selection.getFirstRange()!;\n\n\tif ( range.start.parent == range.end.parent ) {\n\t\treturn false;\n\t}\n\n\treturn schema.checkChild( limitElement, 'paragraph' );\n}\n\n// Helper function that sets the selection. Depending whether given `selection` is a document selection or not,\n// uses a different method to set it.\nfunction collapseSelectionAt(\n\twriter: Writer,\n\tselection: Selection | DocumentSelection,\n\tpositionOrRange: Position | Range\n) {\n\tif ( selection instanceof DocumentSelection ) {\n\t\twriter.setSelection( positionOrRange );\n\t} else {\n\t\tselection.setTo( positionOrRange );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type DocumentFragment from '../documentfragment';\nimport type DocumentSelection from '../documentselection';\nimport type Element from '../element';\nimport type Model from '../model';\nimport type Range from '../range';\nimport type Selection from '../selection';\nimport type Writer from '../writer';\n\n/**\n * @module engine/model/utils/getselectedcontent\n */\n\n/**\n * Gets a clone of the selected content.\n *\n * For example, for the following selection:\n *\n * ```html\n * <p>x</p><quote><p>y</p><h>fir[st</h></quote><p>se]cond</p><p>z</p>\n * ```\n *\n * It will return a document fragment with such a content:\n *\n * ```html\n * <quote><h>st</h></quote><p>se</p>\n * ```\n *\n * @param {module:engine/model/model~Model} model The model in context of which\n * the selection modification should be performed.\n * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n * The selection of which content will be returned.\n * @returns {module:engine/model/documentfragment~DocumentFragment}\n */\nexport default function getSelectedContent(\n\tmodel: Model,\n\tselection: Selection | DocumentSelection\n): DocumentFragment {\n\treturn model.change( writer => {\n\t\tconst frag = writer.createDocumentFragment();\n\t\tconst range = selection.getFirstRange();\n\n\t\tif ( !range || range.isCollapsed ) {\n\t\t\treturn frag;\n\t\t}\n\n\t\tconst root = range.start.root;\n\t\tconst commonPath = range.start.getCommonPath( range.end );\n\t\tconst commonParent = root.getNodeByPath( commonPath );\n\n\t\t// ## 1st step\n\t\t//\n\t\t// First, we'll clone a fragment represented by a minimal flat range\n\t\t// containing the original range to be cloned.\n\t\t// E.g. let's consider such a range:\n\t\t//\n\t\t// <p>x</p><quote><p>y</p><h>fir[st</h></quote><p>se]cond</p><p>z</p>\n\t\t//\n\t\t// A minimal flat range containing this one is:\n\t\t//\n\t\t// <p>x</p>[<quote><p>y</p><h>first</h></quote><p>second</p>]<p>z</p>\n\t\t//\n\t\t// We can easily clone this structure, preserving e.g. the <quote> element.\n\t\tlet flatSubtreeRange: Range;\n\n\t\tif ( range.start.parent == range.end.parent ) {\n\t\t\t// The original range is flat, so take it.\n\t\t\tflatSubtreeRange = range;\n\t\t} else {\n\t\t\tflatSubtreeRange = writer.createRange(\n\t\t\t\twriter.createPositionAt( commonParent, range.start.path[ commonPath.length ] ),\n\t\t\t\twriter.createPositionAt( commonParent, range.end.path[ commonPath.length ] + 1 )\n\t\t\t);\n\t\t}\n\n\t\tconst howMany = flatSubtreeRange.end.offset - flatSubtreeRange.start.offset;\n\n\t\t// Clone the whole contents.\n\t\tfor ( const item of flatSubtreeRange.getItems( { shallow: true } ) ) {\n\t\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\t\twriter.appendText( item.data, item.getAttributes(), frag );\n\t\t\t} else {\n\t\t\t\twriter.append( writer.cloneElement( item as Element, true ), frag );\n\t\t\t}\n\t\t}\n\n\t\t// ## 2nd step\n\t\t//\n\t\t// If the original range wasn't flat, then we need to remove the excess nodes from the both ends of the cloned fragment.\n\t\t//\n\t\t// For example, for the range shown in the 1st step comment, we need to remove these pieces:\n\t\t//\n\t\t// <quote>[<p>y</p>]<h>[fir]st</h></quote><p>se[cond]</p>\n\t\t//\n\t\t// So this will be the final copied content:\n\t\t//\n\t\t// <quote><h>st</h></quote><p>se</p>\n\t\t//\n\t\t// In order to do that, we remove content from these two ranges:\n\t\t//\n\t\t// [<quote><p>y</p><h>fir]st</h></quote><p>se[cond</p>]\n\t\tif ( flatSubtreeRange != range ) {\n\t\t\t// Find the position of the original range in the cloned fragment.\n\t\t\tconst newRange = range._getTransformedByMove( flatSubtreeRange.start, writer.createPositionAt( frag, 0 ), howMany )[ 0 ];\n\n\t\t\tconst leftExcessRange = writer.createRange( writer.createPositionAt( frag, 0 ), newRange.start );\n\t\t\tconst rightExcessRange = writer.createRange( newRange.end, writer.createPositionAt( frag, 'end' ) );\n\n\t\t\tremoveRangeContent( rightExcessRange, writer );\n\t\t\tremoveRangeContent( leftExcessRange, writer );\n\t\t}\n\n\t\treturn frag;\n\t} );\n}\n\n// After https://github.com/ckeditor/ckeditor5-engine/issues/690 is fixed,\n// this function will, most likely, be able to rewritten using getMinimalFlatRanges().\nfunction removeRangeContent( range: Range, writer: Writer ) {\n\tconst parentsToCheck: Array<Element | DocumentFragment> = [];\n\n\tArray.from( range.getItems( { direction: 'backward' } ) )\n\t\t// We should better store ranges because text proxies will lose integrity\n\t\t// with the text nodes when we'll start removing content.\n\t\t.map( item => writer.createRangeOn( item ) )\n\t\t// Filter only these items which are fully contained in the passed range.\n\t\t//\n\t\t// E.g. for the following range: [<quote><p>y</p><h>fir]st</h>\n\t\t// the walker will return the entire <h> element, when only the \"fir\" item inside it is fully contained.\n\t\t.filter( itemRange => {\n\t\t\t// We should be able to use Range.containsRange, but https://github.com/ckeditor/ckeditor5-engine/issues/691.\n\t\t\tconst contained =\n\t\t\t\t( itemRange.start.isAfter( range.start ) || itemRange.start.isEqual( range.start ) ) &&\n\t\t\t\t( itemRange.end.isBefore( range.end ) || itemRange.end.isEqual( range.end ) );\n\n\t\t\treturn contained;\n\t\t} )\n\t\t.forEach( itemRange => {\n\t\t\tparentsToCheck.push( itemRange.start.parent );\n\n\t\t\twriter.remove( itemRange );\n\t\t} );\n\n\t// Remove ancestors of the removed items if they turned to be empty now\n\t// (their whole content was contained in the range).\n\tparentsToCheck.forEach( parentToCheck => {\n\t\tlet parent = parentToCheck;\n\n\t\twhile ( parent.parent && parent.isEmpty ) {\n\t\t\tconst removeRange = writer.createRangeOn( parent );\n\n\t\t\tparent = parent.parent;\n\n\t\t\twriter.remove( removeRange );\n\t\t}\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/insertcontent\n */\n\nimport DocumentSelection from '../documentselection';\nimport Element from '../element';\nimport LivePosition from '../liveposition';\nimport Position from '../position';\nimport Range from '../range';\nimport Selection, { type Selectable } from '../selection';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Item from '../item';\nimport type Model from '../model';\nimport type Node from '../node';\nimport type Schema from '../schema';\nimport type Writer from '../writer';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\nimport { LiveRange } from '../../index';\n\n/**\n * Inserts content into the editor (specified selection) as one would expect the paste functionality to work.\n *\n * It takes care of removing the selected content, splitting elements (if needed), inserting elements and merging elements appropriately.\n *\n * Some examples:\n *\n * \t\t<p>x^</p> + <p>y</p> => <p>x</p><p>y</p> => <p>xy[]</p>\n * \t\t<p>x^y</p> + <p>z</p> => <p>x</p>^<p>y</p> + <p>z</p> => <p>x</p><p>z</p><p>y</p> => <p>xz[]y</p>\n * \t\t<p>x^y</p> + <img /> => <p>x</p>^<p>y</p> + <img /> => <p>x</p><img /><p>y</p>\n * \t\t<p>x</p><p>^</p><p>z</p> + <p>y</p> => <p>x</p><p>y[]</p><p>z</p> (no merging)\n * \t\t<p>x</p>[<img />]<p>z</p> + <p>y</p> => <p>x</p>^<p>z</p> + <p>y</p> => <p>x</p><p>y[]</p><p>z</p>\n *\n * If an instance of {@link module:engine/model/selection~Selection} is passed as `selectable` it will be modified\n * to the insertion selection (equal to a range to be selected after insertion).\n *\n * If `selectable` is not passed, the content will be inserted using the current selection of the model document.\n *\n * **Note:** Use {@link module:engine/model/model~Model#insertContent} instead of this function.\n * This function is only exposed to be reusable in algorithms which change the {@link module:engine/model/model~Model#insertContent}\n * method's behavior.\n *\n * @param {module:engine/model/model~Model} model The model in context of which the insertion\n * should be performed.\n * @param {module:engine/model/documentfragment~DocumentFragment|module:engine/model/item~Item} content The content to insert.\n * @param {module:engine/model/selection~Selectable} [selectable=model.document.selection]\n * Selection into which the content should be inserted.\n * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Sets place or offset of the selection.\n * @returns {module:engine/model/range~Range} Range which contains all the performed changes. This is a range that, if removed,\n * would return the model to the state before the insertion. If no changes were preformed by `insertContent`, returns a range collapsed\n * at the insertion position.\n */\nexport default function insertContent(\n\tmodel: Model,\n\tcontent: Item | DocumentFragment,\n\tselectable?: Selectable,\n\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in'\n): Range {\n\treturn model.change( writer => {\n\t\tlet selection: Selection | DocumentSelection;\n\n\t\tif ( !selectable ) {\n\t\t\tselection = model.document.selection;\n\t\t} else if ( selectable instanceof Selection || selectable instanceof DocumentSelection ) {\n\t\t\tselection = selectable;\n\t\t} else {\n\t\t\tselection = writer.createSelection( selectable, placeOrOffset );\n\t\t}\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\tmodel.deleteContent( selection, { doNotAutoparagraph: true } );\n\t\t}\n\n\t\tconst insertion = new Insertion( model, writer, selection.anchor! );\n\t\tconst fakeMarkerElements = [];\n\n\t\tlet nodesToInsert: any;\n\n\t\tif ( content.is( 'documentFragment' ) ) {\n\t\t\t// If document fragment has any markers, these markers should be inserted into the model as well.\n\t\t\tif ( content.markers.size ) {\n\t\t\t\tconst markersPosition = [];\n\n\t\t\t\tfor ( const [ name, range ] of content.markers ) {\n\t\t\t\t\tconst { start, end } = range;\n\t\t\t\t\tconst isCollapsed = start.isEqual( end );\n\n\t\t\t\t\tmarkersPosition.push(\n\t\t\t\t\t\t{ position: start, name, isCollapsed },\n\t\t\t\t\t\t{ position: end, name, isCollapsed }\n\t\t\t\t\t);\n\t\t\t\t}\n\n\t\t\t\t// Markers position is sorted backwards to ensure that the insertion of fake markers will not change\n\t\t\t\t// the position of the next markers.\n\t\t\t\tmarkersPosition.sort( ( { position: posA }, { position: posB } ) => posA.isBefore( posB ) ? 1 : -1 );\n\n\t\t\t\tfor ( const { position, name, isCollapsed } of markersPosition ) {\n\t\t\t\t\tlet fakeElement = null;\n\t\t\t\t\tlet collapsed = null;\n\t\t\t\t\tconst isAtBeginning = position.parent === content && position.isAtStart;\n\t\t\t\t\tconst isAtEnd = position.parent === content && position.isAtEnd;\n\n\t\t\t\t\t// We have two ways of handling markers. In general, we want to add temporary <$marker> model elements to\n\t\t\t\t\t// represent marker boundaries. These elements will be inserted into content together with the rest\n\t\t\t\t\t// of the document fragment. After insertion is done, positions for these elements will be read\n\t\t\t\t\t// and proper, actual markers will be created in the model and fake elements will be removed.\n\t\t\t\t\t//\n\t\t\t\t\t// However, if the <$marker> element is at the beginning or at the end of the document fragment,\n\t\t\t\t\t// it may affect how the inserted content is merged with current model, impacting the insertion\n\t\t\t\t\t// result. To avoid that, we don't add <$marker> elements at these positions. Instead, we will use\n\t\t\t\t\t// `Insertion#getAffectedRange()` to figure out new positions for these marker boundaries.\n\t\t\t\t\tif ( !isAtBeginning && !isAtEnd ) {\n\t\t\t\t\t\tfakeElement = writer.createElement( '$marker' );\n\t\t\t\t\t\twriter.insert( fakeElement, position );\n\t\t\t\t\t} else if ( isCollapsed ) {\n\t\t\t\t\t\t// Save whether the collapsed marker was at the beginning or at the end of document fragment\n\t\t\t\t\t\t// to know where to create it after the insertion is done.\n\t\t\t\t\t\tcollapsed = isAtBeginning ? 'start' as const : 'end' as const;\n\t\t\t\t\t}\n\n\t\t\t\t\tfakeMarkerElements.push( {\n\t\t\t\t\t\tname,\n\t\t\t\t\t\telement: fakeElement,\n\t\t\t\t\t\tcollapsed\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tnodesToInsert = content.getChildren();\n\t\t} else {\n\t\t\tnodesToInsert = [ content ];\n\t\t}\n\n\t\tinsertion.handleNodes( nodesToInsert );\n\n\t\tlet newRange = insertion.getSelectionRange();\n\n\t\tif ( content.is( 'documentFragment' ) && fakeMarkerElements.length ) {\n\t\t\t// After insertion was done, the selection was set but the model contains fake <$marker> elements.\n\t\t\t// These <$marker> elements will be now removed. Because of that, we will need to fix the selection.\n\t\t\t// We will create a live range that will automatically be update as <$marker> elements are removed.\n\t\t\tconst selectionLiveRange = newRange ? LiveRange.fromRange( newRange ) : null;\n\n\t\t\t// Marker name -> [ start position, end position ].\n\t\t\tconst markersData: Record<string, Array<Position>> = {};\n\n\t\t\t// Note: `fakeMarkerElements` are sorted backwards. However, now, we want to handle the markers\n\t\t\t// from the beginning, so that existing <$marker> elements do not affect markers positions.\n\t\t\t// This is why we iterate from the end to the start.\n\t\t\tfor ( let i = fakeMarkerElements.length - 1; i >= 0; i-- ) {\n\t\t\t\tconst { name, element, collapsed } = fakeMarkerElements[ i ];\n\t\t\t\tconst isStartBoundary = !markersData[ name ];\n\n\t\t\t\tif ( isStartBoundary ) {\n\t\t\t\t\tmarkersData[ name ] = [];\n\t\t\t\t}\n\n\t\t\t\tif ( element ) {\n\t\t\t\t\t// Read fake marker element position to learn where the marker should be created.\n\t\t\t\t\tconst elementPosition = writer.createPositionAt( element, 'before' );\n\n\t\t\t\t\tmarkersData[ name ].push( elementPosition );\n\n\t\t\t\t\twriter.remove( element );\n\t\t\t\t} else {\n\t\t\t\t\t// If the fake marker element does not exist, it means that the marker boundary was at the beginning or at the end.\n\t\t\t\t\tconst rangeOnInsertion = insertion.getAffectedRange();\n\n\t\t\t\t\tif ( !rangeOnInsertion ) {\n\t\t\t\t\t\t// If affected range is `null` it means that nothing was in the document fragment or all content was filtered out.\n\t\t\t\t\t\t// Some markers that were in the filtered content may be removed (partially or totally).\n\t\t\t\t\t\t// Let's handle only those markers that were at the beginning or at the end of the document fragment.\n\t\t\t\t\t\tif ( collapsed ) {\n\t\t\t\t\t\t\tmarkersData[ name ].push( insertion.position );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( collapsed ) {\n\t\t\t\t\t\t// If the marker was collapsed at the beginning or at the end of the document fragment,\n\t\t\t\t\t\t// put both boundaries at the beginning or at the end of inserted range (to keep the marker collapsed).\n\t\t\t\t\t\tmarkersData[ name ].push( rangeOnInsertion[ collapsed ] );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tmarkersData[ name ].push( isStartBoundary ? rangeOnInsertion.start : rangeOnInsertion.end );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tfor ( const [ name, [ start, end ] ] of Object.entries( markersData ) ) {\n\t\t\t\t// For now, we ignore markers if they are included in the filtered-out content.\n\t\t\t\t// In the future implementation we will improve that case to create markers that are not filtered out completely.\n\t\t\t\tif ( start && end && start.root === end.root ) {\n\t\t\t\t\twriter.addMarker( name, {\n\t\t\t\t\t\tusingOperation: true,\n\t\t\t\t\t\taffectsData: true,\n\t\t\t\t\t\trange: new Range( start, end )\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( selectionLiveRange ) {\n\t\t\t\tnewRange = selectionLiveRange.toRange();\n\t\t\t\tselectionLiveRange.detach();\n\t\t\t}\n\t\t}\n\n\t\t/* istanbul ignore else */\n\t\tif ( newRange ) {\n\t\t\tif ( selection instanceof DocumentSelection ) {\n\t\t\t\twriter.setSelection( newRange );\n\t\t\t} else {\n\t\t\t\tselection.setTo( newRange );\n\t\t\t}\n\t\t} else {\n\t\t\t// We are not testing else because it's a safe check for unpredictable edge cases:\n\t\t\t// an insertion without proper range to select.\n\t\t\t//\n\t\t\t// @if CK_DEBUG // console.warn( 'Cannot determine a proper selection range after insertion.' );\n\t\t}\n\n\t\tconst affectedRange = insertion.getAffectedRange() || model.createRange( selection.anchor! );\n\n\t\tinsertion.destroy();\n\n\t\treturn affectedRange;\n\t} );\n}\n\n/**\n * Utility class for performing content insertion.\n *\n * @private\n */\nclass Insertion {\n\tpublic readonly model: Model;\n\tpublic readonly writer: Writer;\n\tpublic position: Position;\n\tpublic readonly canMergeWith: Set<Node | DocumentFragment | null>;\n\tpublic readonly schema: Schema;\n\n\tprivate readonly _documentFragment: DocumentFragment;\n\tprivate _documentFragmentPosition: Position;\n\tprivate _firstNode: Node | null;\n\tprivate _lastNode: Node | null;\n\tprivate _lastAutoParagraph: Element | null;\n\tprivate _filterAttributesOf: Array<Node>;\n\tprivate _affectedStart: LivePosition | null;\n\tprivate _affectedEnd: LivePosition | null;\n\tprivate _nodeToSelect?: Node | null;\n\n\tconstructor( model: Model, writer: Writer, position: Position ) {\n\t\t/**\n\t\t * The model in context of which the insertion should be performed.\n\t\t *\n\t\t * @member {module:engine/model~Model} #model\n\t\t */\n\t\tthis.model = model;\n\n\t\t/**\n\t\t * Batch to which operations will be added.\n\t\t *\n\t\t * @member {module:engine/controller/writer~Batch} #writer\n\t\t */\n\t\tthis.writer = writer;\n\n\t\t/**\n\t\t * The position at which (or near which) the next node will be inserted.\n\t\t *\n\t\t * @member {module:engine/model/position~Position} #position\n\t\t */\n\t\tthis.position = position;\n\n\t\t/**\n\t\t * Elements with which the inserted elements can be merged.\n\t\t *\n\t\t *\t\t<p>x^</p><p>y</p> + <p>z</p> (can merge to <p>x</p>)\n\t\t *\t\t<p>x</p><p>^y</p> + <p>z</p> (can merge to <p>y</p>)\n\t\t *\t\t<p>x^y</p> + <p>z</p> (can merge to <p>xy</p> which will be split during the action,\n\t\t *\t\t\t\t\t\t\t\tso both its pieces will be added to this set)\n\t\t *\n\t\t *\n\t\t * @member {Set} #canMergeWith\n\t\t */\n\t\tthis.canMergeWith = new Set( [ this.position.parent ] );\n\n\t\t/**\n\t\t * Schema of the model.\n\t\t *\n\t\t * @member {module:engine/model/schema~Schema} #schema\n\t\t */\n\t\tthis.schema = model.schema;\n\n\t\t/**\n\t\t * The temporary DocumentFragment used for grouping multiple nodes for single insert operation.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/documentfragment~DocumentFragment}\n\t\t */\n\t\tthis._documentFragment = writer.createDocumentFragment();\n\n\t\t/**\n\t\t * The current position in the temporary DocumentFragment.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/position~Position}\n\t\t */\n\t\tthis._documentFragmentPosition = writer.createPositionAt( this._documentFragment, 0 );\n\n\t\t/**\n\t\t * The reference to the first inserted node.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/node~Node}\n\t\t */\n\t\tthis._firstNode = null;\n\n\t\t/**\n\t\t * The reference to the last inserted node.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/node~Node}\n\t\t */\n\t\tthis._lastNode = null;\n\n\t\t/**\n\t\t * The reference to the last auto paragraph node.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/node~Node}\n\t\t */\n\t\tthis._lastAutoParagraph = null;\n\n\t\t/**\n\t\t * The array of nodes that should be cleaned of not allowed attributes.\n\t\t *\n\t\t * @private\n\t\t * @type {Array.<module:engine/model/node~Node>}\n\t\t */\n\t\tthis._filterAttributesOf = [];\n\n\t\t/**\n\t\t * Beginning of the affected range. See {@link module:engine/model/utils/insertcontent~Insertion#getAffectedRange}.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/liveposition~LivePosition|null} #_affectedStart\n\t\t */\n\t\tthis._affectedStart = null;\n\n\t\t/**\n\t\t * End of the affected range. See {@link module:engine/model/utils/insertcontent~Insertion#getAffectedRange}.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/liveposition~LivePosition|null} #_affectedEnd\n\t\t */\n\t\tthis._affectedEnd = null;\n\t}\n\n\t/**\n\t * Handles insertion of a set of nodes.\n\t *\n\t * @param {Iterable.<module:engine/model/node~Node>} nodes Nodes to insert.\n\t */\n\tpublic handleNodes( nodes: Iterable<Node> ): void {\n\t\tfor ( const node of Array.from( nodes ) ) {\n\t\t\tthis._handleNode( node );\n\t\t}\n\n\t\t// Insert nodes collected in temporary DocumentFragment.\n\t\tthis._insertPartialFragment();\n\n\t\t// If there was an auto paragraph then we might need to adjust the end of insertion.\n\t\tif ( this._lastAutoParagraph ) {\n\t\t\tthis._updateLastNodeFromAutoParagraph( this._lastAutoParagraph );\n\t\t}\n\n\t\t// After the content was inserted we may try to merge it with its next sibling if the selection was in it initially.\n\t\t// Merging with the previous sibling was performed just after inserting the first node to the document.\n\t\tthis._mergeOnRight();\n\n\t\t// TMP this will become a post-fixer.\n\t\tthis.schema.removeDisallowedAttributes( this._filterAttributesOf, this.writer );\n\t\tthis._filterAttributesOf = [];\n\t}\n\n\t/**\n\t * Updates the last node after the auto paragraphing.\n\t *\n\t * @private\n\t * @param {module:engine/model/node~Node} node The last auto paragraphing node.\n\t */\n\tprivate _updateLastNodeFromAutoParagraph( node: Node ): void {\n\t\tconst positionAfterLastNode = this.writer.createPositionAfter( this._lastNode! );\n\t\tconst positionAfterNode = this.writer.createPositionAfter( node );\n\n\t\t// If the real end was after the last auto paragraph then update relevant properties.\n\t\tif ( positionAfterNode.isAfter( positionAfterLastNode ) ) {\n\t\t\tthis._lastNode = node;\n\n\t\t\t/* istanbul ignore if */\n\t\t\tif ( this.position.parent != node || !this.position.isAtEnd ) {\n\t\t\t\t// Algorithm's correctness check. We should never end up here but it's good to know that we did.\n\t\t\t\t// At this point the insertion position should be at the end of the last auto paragraph.\n\t\t\t\t// Note: This error is documented in other place in this file.\n\t\t\t\tthrow new CKEditorError( 'insertcontent-invalid-insertion-position', this );\n\t\t\t}\n\n\t\t\tthis.position = positionAfterNode;\n\t\t\tthis._setAffectedBoundaries( this.position );\n\t\t}\n\t}\n\n\t/**\n\t * Returns range to be selected after insertion.\n\t * Returns `null` if there is no valid range to select after insertion.\n\t *\n\t * @returns {module:engine/model/range~Range|null}\n\t */\n\tpublic getSelectionRange(): Range | null {\n\t\tif ( this._nodeToSelect ) {\n\t\t\treturn Range._createOn( this._nodeToSelect );\n\t\t}\n\n\t\treturn this.model.schema.getNearestSelectionRange( this.position );\n\t}\n\n\t/**\n\t * Returns a range which contains all the performed changes. This is a range that, if removed, would return the model to the state\n\t * before the insertion. Returns `null` if no changes were done.\n\t *\n\t * @returns {module:engine/model/range~Range|null}\n\t */\n\tpublic getAffectedRange(): Range | null {\n\t\tif ( !this._affectedStart ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn new Range( this._affectedStart, this._affectedEnd );\n\t}\n\n\t/**\n\t * Destroys `Insertion` instance.\n\t */\n\tpublic destroy(): void {\n\t\tif ( this._affectedStart ) {\n\t\t\tthis._affectedStart.detach();\n\t\t}\n\n\t\tif ( this._affectedEnd ) {\n\t\t\tthis._affectedEnd.detach();\n\t\t}\n\t}\n\n\t/**\n\t * Handles insertion of a single node.\n\t *\n\t * @private\n\t * @param {module:engine/model/node~Node} node\n\t */\n\tprivate _handleNode( node: Node ): void {\n\t\t// Let's handle object in a special way.\n\t\t// * They should never be merged with other elements.\n\t\t// * If they are not allowed in any of the selection ancestors, they could be either autoparagraphed or totally removed.\n\t\tif ( this.schema.isObject( node ) ) {\n\t\t\tthis._handleObject( node as Element );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Try to find a place for the given node.\n\n\t\t// Check if a node can be inserted in the given position or it would be accepted if a paragraph would be inserted.\n\t\t// Inserts the auto paragraph if it would allow for insertion.\n\t\tlet isAllowed = this._checkAndAutoParagraphToAllowedPosition( node );\n\n\t\tif ( !isAllowed ) {\n\t\t\t// Split the position.parent's branch up to a point where the node can be inserted.\n\t\t\t// If it isn't allowed in the whole branch, then of course don't split anything.\n\t\t\tisAllowed = this._checkAndSplitToAllowedPosition( node );\n\n\t\t\tif ( !isAllowed ) {\n\t\t\t\tthis._handleDisallowedNode( node );\n\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\t// Add node to the current temporary DocumentFragment.\n\t\tthis._appendToFragment( node );\n\n\t\t// Store the first and last nodes for easy access for merging with sibling nodes.\n\t\tif ( !this._firstNode ) {\n\t\t\tthis._firstNode = node;\n\t\t}\n\n\t\tthis._lastNode = node;\n\t}\n\n\t/**\n\t * Inserts the temporary DocumentFragment into the model.\n\t *\n\t * @private\n\t */\n\tprivate _insertPartialFragment(): void {\n\t\tif ( this._documentFragment.isEmpty ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst livePosition = LivePosition.fromPosition( this.position, 'toNext' );\n\n\t\tthis._setAffectedBoundaries( this.position );\n\n\t\t// If the very first node of the whole insertion process is inserted, insert it separately for OT reasons (undo).\n\t\t// Note: there can be multiple calls to `_insertPartialFragment()` during one insertion process.\n\t\t// Note: only the very first node can be merged so we have to do separate operation only for it.\n\t\tif ( this._documentFragment.getChild( 0 ) == this._firstNode ) {\n\t\t\tthis.writer.insert( this._firstNode!, this.position );\n\n\t\t\t// We must merge the first node just after inserting it to avoid problems with OT.\n\t\t\t// (See: https://github.com/ckeditor/ckeditor5/pull/8773#issuecomment-760945652).\n\t\t\tthis._mergeOnLeft();\n\n\t\t\tthis.position = livePosition.toPosition();\n\t\t}\n\n\t\t// Insert the remaining nodes from document fragment.\n\t\tif ( !this._documentFragment.isEmpty ) {\n\t\t\tthis.writer.insert( this._documentFragment, this.position );\n\t\t}\n\n\t\tthis._documentFragmentPosition = this.writer.createPositionAt( this._documentFragment, 0 );\n\n\t\tthis.position = livePosition.toPosition();\n\t\tlivePosition.detach();\n\t}\n\n\t/**\n\t * @private\n\t * @param {module:engine/model/element~Element} node The object element.\n\t */\n\tprivate _handleObject( node: Element ): void {\n\t\t// Try finding it a place in the tree.\n\t\tif ( this._checkAndSplitToAllowedPosition( node ) ) {\n\t\t\tthis._appendToFragment( node );\n\t\t}\n\t\t// Try autoparagraphing.\n\t\telse {\n\t\t\tthis._tryAutoparagraphing( node );\n\t\t}\n\t}\n\n\t/**\n\t * @private\n\t * @param {module:engine/model/node~Node} node The disallowed node which needs to be handled.\n\t */\n\tprivate _handleDisallowedNode( node: Node ): void {\n\t\t// If the node is an element, try inserting its children (strip the parent).\n\t\tif ( node.is( 'element' ) ) {\n\t\t\tthis.handleNodes( node.getChildren() );\n\t\t}\n\t\t// If text is not allowed, try autoparagraphing it.\n\t\telse {\n\t\t\tthis._tryAutoparagraphing( node );\n\t\t}\n\t}\n\n\t/**\n\t * Append a node to the temporary DocumentFragment.\n\t *\n\t * @private\n\t * @param {module:engine/model/node~Node} node The node to insert.\n\t */\n\tprivate _appendToFragment( node: Node ): void {\n\t\t/* istanbul ignore if */\n\t\tif ( !this.schema.checkChild( this.position, node ) ) {\n\t\t\t// Algorithm's correctness check. We should never end up here but it's good to know that we did.\n\t\t\t// Note that it would often be a silent issue if we insert node in a place where it's not allowed.\n\n\t\t\t/**\n\t\t\t * Given node cannot be inserted on the given position.\n\t\t\t *\n\t\t\t * @error insertcontent-wrong-position\n\t\t\t * @param {module:engine/model/node~Node} node Node to insert.\n\t\t\t * @param {module:engine/model/position~Position} position Position to insert the node at.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'insertcontent-wrong-position',\n\t\t\t\tthis,\n\t\t\t\t{ node, position: this.position }\n\t\t\t);\n\t\t}\n\n\t\tthis.writer.insert( node, this._documentFragmentPosition );\n\t\tthis._documentFragmentPosition = this._documentFragmentPosition.getShiftedBy( node.offsetSize );\n\n\t\t// The last inserted object should be selected because we can't put a collapsed selection after it.\n\t\tif ( this.schema.isObject( node ) && !this.schema.checkChild( this.position, '$text' ) ) {\n\t\t\tthis._nodeToSelect = node;\n\t\t} else {\n\t\t\tthis._nodeToSelect = null;\n\t\t}\n\n\t\tthis._filterAttributesOf.push( node );\n\t}\n\n\t/**\n\t * Sets `_affectedStart` and `_affectedEnd` to the given `position`. Should be used before a change is done during insertion process to\n\t * mark the affected range.\n\t *\n\t * This method is used before inserting a node or splitting a parent node. `_affectedStart` and `_affectedEnd` are also changed\n\t * during merging, but the logic there is more complicated so it is left out of this function.\n\t *\n\t * @private\n\t * @param {module:engine/model/position~Position} position\n\t */\n\tprivate _setAffectedBoundaries( position: Position ): void {\n\t\t// Set affected boundaries stickiness so that those position will \"expand\" when something is inserted in between them:\n\t\t// <paragraph>Foo][bar</paragraph> -> <paragraph>Foo]xx[bar</paragraph>\n\t\t// This is why it cannot be a range but two separate positions.\n\t\tif ( !this._affectedStart ) {\n\t\t\tthis._affectedStart = LivePosition.fromPosition( position, 'toPrevious' );\n\t\t}\n\n\t\t// If `_affectedEnd` is before the new boundary position, expand `_affectedEnd`. This can happen if first inserted node was\n\t\t// inserted into the parent but the next node is moved-out of that parent:\n\t\t// (1) <paragraph>Foo][</paragraph> -> <paragraph>Foo]xx[</paragraph>\n\t\t// (2) <paragraph>Foo]xx[</paragraph> -> <paragraph>Foo]xx</paragraph><widget></widget>[\n\t\tif ( !this._affectedEnd || this._affectedEnd.isBefore( position ) ) {\n\t\t\tif ( this._affectedEnd ) {\n\t\t\t\tthis._affectedEnd.detach();\n\t\t\t}\n\n\t\t\tthis._affectedEnd = LivePosition.fromPosition( position, 'toNext' );\n\t\t}\n\t}\n\n\t/**\n\t * Merges the previous sibling of the first node if it should be merged.\n\t *\n\t * After the content was inserted we may try to merge it with its siblings.\n\t * This should happen only if the selection was in those elements initially.\n\t *\n\t * @private\n\t */\n\tprivate _mergeOnLeft(): void {\n\t\tconst node = this._firstNode;\n\n\t\tif ( !( node instanceof Element ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !this._canMergeLeft( node ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst mergePosLeft = LivePosition._createBefore( node );\n\t\tmergePosLeft.stickiness = 'toNext';\n\n\t\tconst livePosition = LivePosition.fromPosition( this.position, 'toNext' );\n\n\t\t// If `_affectedStart` is sames as merge position, it means that the element \"marked\" by `_affectedStart` is going to be\n\t\t// removed and its contents will be moved. This won't transform `LivePosition` so `_affectedStart` needs to be moved\n\t\t// by hand to properly reflect affected range. (Due to `_affectedStart` and `_affectedEnd` stickiness, the \"range\" is\n\t\t// shown as `][`).\n\t\t//\n\t\t// Example - insert `<paragraph>Abc</paragraph><paragraph>Xyz</paragraph>` at the end of `<paragraph>Foo^</paragraph>`:\n\t\t//\n\t\t// <paragraph>Foo</paragraph><paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo</paragraph>]<paragraph>Abc</paragraph><paragraph>Xyz</paragraph>[<paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo]Abc</paragraph><paragraph>Xyz</paragraph>[<paragraph>Bar</paragraph>\n\t\t//\n\t\t// Note, that if we are here then something must have been inserted, so `_affectedStart` and `_affectedEnd` have to be set.\n\t\tif ( this._affectedStart!.isEqual( mergePosLeft ) ) {\n\t\t\tthis._affectedStart!.detach();\n\t\t\tthis._affectedStart = LivePosition._createAt( mergePosLeft.nodeBefore!, 'end', 'toPrevious' );\n\t\t}\n\n\t\t// We need to update the references to the first and last nodes if they will be merged into the previous sibling node\n\t\t// because the reference would point to the removed node.\n\t\t//\n\t\t// <p>A^A</p> + <p>X</p>\n\t\t//\n\t\t// <p>A</p>^<p>A</p>\n\t\t// <p>A</p><p>X</p><p>A</p>\n\t\t// <p>AX</p><p>A</p>\n\t\t// <p>AXA</p>\n\t\tif ( this._firstNode === this._lastNode ) {\n\t\t\tthis._firstNode = mergePosLeft.nodeBefore;\n\t\t\tthis._lastNode = mergePosLeft.nodeBefore;\n\t\t}\n\n\t\tthis.writer.merge( mergePosLeft );\n\n\t\t// If only one element (the merged one) is in the \"affected range\", also move the affected range end appropriately.\n\t\t//\n\t\t// Example - insert `<paragraph>Abc</paragraph>` at the of `<paragraph>Foo^</paragraph>`:\n\t\t//\n\t\t// <paragraph>Foo</paragraph><paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo</paragraph>]<paragraph>Abc</paragraph>[<paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo]Abc</paragraph>[<paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo]Abc[</paragraph><paragraph>Bar</paragraph>\n\t\tif ( mergePosLeft.isEqual( this._affectedEnd! ) && this._firstNode === this._lastNode ) {\n\t\t\tthis._affectedEnd!.detach();\n\t\t\tthis._affectedEnd = LivePosition._createAt( mergePosLeft.nodeBefore!, 'end', 'toNext' );\n\t\t}\n\n\t\tthis.position = livePosition.toPosition();\n\t\tlivePosition.detach();\n\n\t\t// After merge elements that were marked by _insert() to be filtered might be gone so\n\t\t// we need to mark the new container.\n\t\tthis._filterAttributesOf.push( this.position.parent as any );\n\n\t\tmergePosLeft.detach();\n\t}\n\n\t/**\n\t * Merges the next sibling of the last node if it should be merged.\n\t *\n\t * After the content was inserted we may try to merge it with its siblings.\n\t * This should happen only if the selection was in those elements initially.\n\t *\n\t * @private\n\t */\n\tprivate _mergeOnRight(): void {\n\t\tconst node = this._lastNode;\n\n\t\tif ( !( node instanceof Element ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !this._canMergeRight( node ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst mergePosRight = LivePosition._createAfter( node );\n\t\tmergePosRight.stickiness = 'toNext';\n\n\t\t/* istanbul ignore if */\n\t\tif ( !this.position.isEqual( mergePosRight ) ) {\n\t\t\t// Algorithm's correctness check. We should never end up here but it's good to know that we did.\n\t\t\t// At this point the insertion position should be after the node we'll merge. If it isn't,\n\t\t\t// it should need to be secured as in the left merge case.\n\t\t\t/**\n\t\t\t * An internal error occurred when merging inserted content with its siblings.\n\t\t\t * The insertion position should equal the merge position.\n\t\t\t *\n\t\t\t * If you encountered this error, report it back to the CKEditor 5 team\n\t\t\t * with as many details as possible regarding the content being inserted and the insertion position.\n\t\t\t *\n\t\t\t * @error insertcontent-invalid-insertion-position\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'insertcontent-invalid-insertion-position', this );\n\t\t}\n\n\t\t// Move the position to the previous node, so it isn't moved to the graveyard on merge.\n\t\t// <p>x</p>[]<p>y</p> => <p>x[]</p><p>y</p>\n\t\tthis.position = Position._createAt( mergePosRight.nodeBefore!, 'end' );\n\n\t\t// Explanation of setting position stickiness to `'toPrevious'`:\n\t\t// OK:  <p>xx[]</p> + <p>yy</p> => <p>xx[]yy</p> (when sticks to previous)\n\t\t// NOK: <p>xx[]</p> + <p>yy</p> => <p>xxyy[]</p> (when sticks to next)\n\t\tconst livePosition = LivePosition.fromPosition( this.position, 'toPrevious' );\n\n\t\t// See comment in `_mergeOnLeft()` on moving `_affectedStart`.\n\t\tif ( this._affectedEnd!.isEqual( mergePosRight ) ) {\n\t\t\tthis._affectedEnd!.detach();\n\t\t\tthis._affectedEnd = LivePosition._createAt( mergePosRight.nodeBefore!, 'end', 'toNext' );\n\t\t}\n\n\t\t// We need to update the references to the first and last nodes if they will be merged into the previous sibling node\n\t\t// because the reference would point to the removed node.\n\t\t//\n\t\t// <p>A^A</p> + <p>X</p>\n\t\t//\n\t\t// <p>A</p>^<p>A</p>\n\t\t// <p>A</p><p>X</p><p>A</p>\n\t\t// <p>AX</p><p>A</p>\n\t\t// <p>AXA</p>\n\t\tif ( this._firstNode === this._lastNode ) {\n\t\t\tthis._firstNode = mergePosRight.nodeBefore;\n\t\t\tthis._lastNode = mergePosRight.nodeBefore;\n\t\t}\n\n\t\tthis.writer.merge( mergePosRight );\n\n\t\t// See comment in `_mergeOnLeft()` on moving `_affectedStart`.\n\t\tif ( mergePosRight.getShiftedBy( -1 ).isEqual( this._affectedStart! ) && this._firstNode === this._lastNode ) {\n\t\t\tthis._affectedStart!.detach();\n\t\t\tthis._affectedStart = LivePosition._createAt( mergePosRight.nodeBefore!, 0, 'toPrevious' );\n\t\t}\n\n\t\tthis.position = livePosition.toPosition();\n\t\tlivePosition.detach();\n\n\t\t// After merge elements that were marked by _insert() to be filtered might be gone so\n\t\t// we need to mark the new container.\n\t\tthis._filterAttributesOf.push( this.position.parent as any );\n\n\t\tmergePosRight.detach();\n\t}\n\n\t/**\n\t * Checks whether specified node can be merged with previous sibling element.\n\t *\n\t * @private\n\t * @param {module:engine/model/node~Node} node The node which could potentially be merged.\n\t * @returns {Boolean}\n\t */\n\tprivate _canMergeLeft( node: Element ): boolean {\n\t\tconst previousSibling = node.previousSibling;\n\n\t\treturn ( previousSibling instanceof Element ) &&\n\t\t\tthis.canMergeWith.has( previousSibling ) &&\n\t\t\tthis.model.schema.checkMerge( previousSibling, node );\n\t}\n\n\t/**\n\t * Checks whether specified node can be merged with next sibling element.\n\t *\n\t * @private\n\t * @param {module:engine/model/node~Node} node The node which could potentially be merged.\n\t * @returns {Boolean}\n\t */\n\tprivate _canMergeRight( node: Element ): boolean {\n\t\tconst nextSibling = node.nextSibling;\n\n\t\treturn ( nextSibling instanceof Element ) &&\n\t\t\tthis.canMergeWith.has( nextSibling ) &&\n\t\t\tthis.model.schema.checkMerge( node, nextSibling );\n\t}\n\n\t/**\n\t * Tries wrapping the node in a new paragraph and inserting it this way.\n\t *\n\t * @private\n\t * @param {module:engine/model/node~Node} node The node which needs to be autoparagraphed.\n\t */\n\tprivate _tryAutoparagraphing( node: Node ): void {\n\t\tconst paragraph = this.writer.createElement( 'paragraph' );\n\n\t\t// Do not autoparagraph if the paragraph won't be allowed there,\n\t\t// cause that would lead to an infinite loop. The paragraph would be rejected in\n\t\t// the next _handleNode() call and we'd be here again.\n\t\tif ( this._getAllowedIn( this.position.parent as any, paragraph ) && this.schema.checkChild( paragraph, node ) ) {\n\t\t\tparagraph._appendChild( node );\n\t\t\tthis._handleNode( paragraph );\n\t\t}\n\t}\n\n\t/**\n\t * Checks if a node can be inserted in the given position or it would be accepted if a paragraph would be inserted.\n\t * It also handles inserting the paragraph.\n\t *\n\t * @private\n\t * @param {module:engine/model/node~Node} node The node.\n\t * @returns {Boolean} Whether an allowed position was found.\n\t * `false` is returned if the node isn't allowed at the current position or in auto paragraph, `true` if was.\n\t */\n\tprivate _checkAndAutoParagraphToAllowedPosition( node: Node ): boolean {\n\t\tif ( this.schema.checkChild( this.position.parent as any, node ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Do not auto paragraph if the paragraph won't be allowed there,\n\t\t// cause that would lead to an infinite loop. The paragraph would be rejected in\n\t\t// the next _handleNode() call and we'd be here again.\n\t\tif ( !this.schema.checkChild( this.position.parent as any, 'paragraph' ) || !this.schema.checkChild( 'paragraph', node ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Insert nodes collected in temporary DocumentFragment if the position parent needs change to process further nodes.\n\t\tthis._insertPartialFragment();\n\n\t\t// Insert a paragraph and move insertion position to it.\n\t\tconst paragraph = this.writer.createElement( 'paragraph' );\n\n\t\tthis.writer.insert( paragraph, this.position );\n\t\tthis._setAffectedBoundaries( this.position );\n\n\t\tthis._lastAutoParagraph = paragraph;\n\t\tthis.position = this.writer.createPositionAt( paragraph, 0 );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * @private\n\t * @param {module:engine/model/node~Node} node\n\t * @returns {Boolean} Whether an allowed position was found.\n\t * `false` is returned if the node isn't allowed at any position up in the tree, `true` if was.\n\t */\n\tprivate _checkAndSplitToAllowedPosition( node: Node ): boolean {\n\t\tconst allowedIn = this._getAllowedIn( this.position.parent as any, node );\n\n\t\tif ( !allowedIn ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Insert nodes collected in temporary DocumentFragment if the position parent needs change to process further nodes.\n\t\tif ( allowedIn != this.position.parent ) {\n\t\t\tthis._insertPartialFragment();\n\t\t}\n\n\t\twhile ( allowedIn != this.position.parent ) {\n\t\t\tif ( this.position.isAtStart ) {\n\t\t\t\t// If insertion position is at the beginning of the parent, move it out instead of splitting.\n\t\t\t\t// <p>^Foo</p> -> ^<p>Foo</p>\n\t\t\t\tconst parent: Element = this.position.parent as Element;\n\n\t\t\t\tthis.position = this.writer.createPositionBefore( parent );\n\n\t\t\t\t// Special case – parent is empty (<p>^</p>).\n\t\t\t\t//\n\t\t\t\t// 1. parent.isEmpty\n\t\t\t\t// We can remove the element after moving insertion position out of it.\n\t\t\t\t//\n\t\t\t\t// 2. parent.parent === allowedIn\n\t\t\t\t// However parent should remain in place when allowed element is above limit element in document tree.\n\t\t\t\t// For example there shouldn't be allowed to remove empty paragraph from tableCell, when is pasted\n\t\t\t\t// content allowed in $root.\n\t\t\t\tif ( parent.isEmpty && parent.parent === allowedIn ) {\n\t\t\t\t\tthis.writer.remove( parent );\n\t\t\t\t}\n\t\t\t} else if ( this.position.isAtEnd ) {\n\t\t\t\t// If insertion position is at the end of the parent, move it out instead of splitting.\n\t\t\t\t// <p>Foo^</p> -> <p>Foo</p>^\n\t\t\t\tthis.position = this.writer.createPositionAfter( this.position.parent as Element );\n\t\t\t} else {\n\t\t\t\tconst tempPos = this.writer.createPositionAfter( this.position.parent as Element );\n\n\t\t\t\tthis._setAffectedBoundaries( this.position );\n\t\t\t\tthis.writer.split( this.position );\n\n\t\t\t\tthis.position = tempPos;\n\n\t\t\t\tthis.canMergeWith.add( this.position.nodeAfter );\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Gets the element in which the given node is allowed. It checks the passed element and all its ancestors.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} contextElement The element in which context the node should be checked.\n\t * @param {module:engine/model/node~Node} childNode The node to check.\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tprivate _getAllowedIn( contextElement: Element, childNode: Node ): Element | null {\n\t\tif ( this.schema.checkChild( contextElement, childNode ) ) {\n\t\t\treturn contextElement;\n\t\t}\n\n\t\t// If the child wasn't allowed in the context element and the element is a limit there's no point in\n\t\t// checking any further towards the root. This is it: the limit is unsplittable and there's nothing\n\t\t// we can do about it. Without this check, the algorithm will analyze parent of the limit and may create\n\t\t// an illusion of the child being allowed. There's no way to insert it down there, though. It results in\n\t\t// infinite loops.\n\t\tif ( this.schema.isLimit( contextElement ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this._getAllowedIn( contextElement.parent as any, childNode );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/findoptimalinsertionrange\n */\n\nimport { first } from '@ckeditor/ckeditor5-utils';\n\nimport type DocumentSelection from '../documentselection';\nimport type Model from '../model';\nimport type Range from '../range';\nimport type Selection from '../selection';\n\n// Returns a model range which is optimal (in terms of UX) for inserting a widget block.\n//\n// For instance, if a selection is in the middle of a paragraph, the collapsed range before this paragraph\n// will be returned so that it is not split. If the selection is at the end of a paragraph,\n// the collapsed range after this paragraph will be returned.\n//\n// Note: If the selection is placed in an empty block, the range in that block will be returned. If that range\n// is then passed to {@link module:engine/model/model~Model#insertContent}, the block will be fully replaced\n// by the inserted widget block.\n//\n// **Note:** Use {@link module:widget/utils#findOptimalInsertionRange} instead of this function outside engine.\n// This function is only exposed to be used by {@link module:widget/utils#findOptimalInsertionRange findOptimalInsertionRange()}\n// in the `widget` package and inside the `engine` package.\n//\n// @private\n// @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n// The selection based on which the insertion position should be calculated.\n// @param {module:engine/model/model~Model} model Model instance.\n// @param {'auto'|'before'|'after'} [place='auto'] The place where to look for optimal insertion range.\n// The default `auto` value will determine itself the best position for insertion.\n// The `before` value will try to find a position before selection.\n// The `after` value will try to find a position after selection.\n// @returns {module:engine/model/range~Range} The optimal range.\nexport function findOptimalInsertionRange(\n\tselection: Selection | DocumentSelection,\n\tmodel: Model,\n\tplace: 'auto' | 'before' | 'after' = 'auto'\n): Range {\n\tconst selectedElement = selection.getSelectedElement();\n\n\tif ( selectedElement && model.schema.isObject( selectedElement ) && !model.schema.isInline( selectedElement ) ) {\n\t\tif ( place == 'before' || place == 'after' ) {\n\t\t\treturn model.createRange( model.createPositionAt( selectedElement, place ) );\n\t\t}\n\n\t\treturn model.createRangeOn( selectedElement );\n\t}\n\n\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t// There are no block elements within ancestors (in the current limit element).\n\tif ( !firstBlock ) {\n\t\treturn model.createRange( selection.focus! );\n\t}\n\n\t// If inserting into an empty block – return position in that block. It will get\n\t// replaced with the image by insertContent(). #42.\n\tif ( firstBlock.isEmpty ) {\n\t\treturn model.createRange( model.createPositionAt( firstBlock, 0 ) );\n\t}\n\n\tconst positionAfter = model.createPositionAfter( firstBlock );\n\n\t// If selection is at the end of the block - return position after the block.\n\tif ( selection.focus!.isTouching( positionAfter ) ) {\n\t\treturn model.createRange( positionAfter );\n\t}\n\n\t// Otherwise, return position before the block.\n\treturn model.createRange( model.createPositionBefore( firstBlock ) );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/insertobject\n */\n\nimport { findOptimalInsertionRange } from './findoptimalinsertionrange';\nimport DocumentSelection from '../documentselection';\nimport Selection, { type Selectable } from '../selection';\n\nimport type Element from '../element';\nimport type Model from '../model';\nimport type Range from '../range';\nimport type Writer from '../writer';\n\nimport { CKEditorError, first } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Inserts an {@glink framework/guides/deep-dive/schema#object-elements object element} at a specific position in the editor content.\n *\n * **Note:** Use {@link module:engine/model/model~Model#insertObject} instead of this function.\n * This function is only exposed to be reusable in algorithms which change the {@link module:engine/model/model~Model#insertObject}\n * method's behavior.\n *\n * **Note**: For more documentation and examples, see {@link module:engine/model/model~Model#insertObject}.\n *\n * @param {module:engine/model/model~Model} model The model in context of which the insertion\n * should be performed.\n * @param {module:engine/model/element~Element} object An object to be inserted into the model document.\n * @param {module:engine/model/selection~Selectable} [selectable=model.document.selection]\n * A selectable where the content should be inserted. If not specified, the current\n * {@link module:engine/model/document~Document#selection document selection} will be used instead.\n * @param {Number|'before'|'end'|'after'|'on'|'in'} placeOrOffset Specifies the exact place or offset for the insertion to take place,\n * relative to `selectable`.\n * @param {Object} [options] Additional options.\n * @param {'auto'|'before'|'after'} [options.findOptimalPosition] An option that, when set, adjusts the insertion position (relative to\n * `selectable` and `placeOrOffset`) so that the content of `selectable` is not split upon insertion (a.k.a. non-destructive insertion).\n * * When `'auto'`, the algorithm will decide whether to insert the object before or after `selectable` to avoid content splitting.\n * * When `'before'`, the closest position before `selectable` will be used that will not result in content splitting.\n * * When `'after'`, the closest position after `selectable` will be used that will not result in content splitting.\n *\n * Note that this option works only for block objects. Inline objects are inserted into text and do not split blocks.\n * @param {'on'|'after'} [options.setSelection] An option that, when set, moves the\n * {@link module:engine/model/document~Document#selection document selection} after inserting the object.\n * * When `'on'`, the document selection will be set on the inserted object.\n * * When `'after'`, the document selection will move to the closest text node after the inserted object. If there is no\n * such text node, a paragraph will be created and the document selection will be moved inside it.\n * @returns {module:engine/model/range~Range} A range which contains all the performed changes. This is a range that, if removed,\n * would return the model to the state before the insertion. If no changes were preformed by `insertObject()`, returns a range collapsed\n * at the insertion position.\n */\nexport default function insertObject(\n\tmodel: Model,\n\tobject: Element,\n\tselectable?: Selectable,\n\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in' | null,\n\toptions: {\n\t\tfindOptimalPosition?: 'auto' | 'before' | 'after';\n\t\tsetSelection?: 'on' | 'after';\n\t} = {}\n): Range {\n\tif ( !model.schema.isObject( object ) ) {\n\t\t/**\n\t\t * Tried to insert an element with {@link module:engine/model/utils/insertobject insertObject()} function\n\t\t * that is not defined as an object in schema.\n\t\t * See {@link module:engine/model/schema~SchemaItemDefinition#isObject `SchemaItemDefinition`}.\n\t\t * If you want to insert content that is not an object you might want to use\n\t\t * {@link module:engine/model/utils/insertcontent insertContent()} function.\n\t\t * @error insertobject-element-not-an-object\n\t\t */\n\t\tthrow new CKEditorError( 'insertobject-element-not-an-object', model, { object } );\n\t}\n\n\t// Normalize selectable to a selection instance.\n\tlet originalSelection: Selection | DocumentSelection;\n\n\tif ( !selectable ) {\n\t\toriginalSelection = model.document.selection;\n\t} else if ( selectable instanceof Selection || selectable instanceof DocumentSelection ) {\n\t\toriginalSelection = selectable;\n\t} else {\n\t\toriginalSelection = model.createSelection( selectable, placeOrOffset! );\n\t}\n\n\t// Adjust the insertion selection.\n\tlet insertionSelection = originalSelection;\n\n\tif ( options.findOptimalPosition && model.schema.isBlock( object ) ) {\n\t\tinsertionSelection = model.createSelection( findOptimalInsertionRange( originalSelection, model, options.findOptimalPosition ) );\n\t}\n\n\t// Collect attributes to be copied on the inserted object.\n\tconst firstSelectedBlock = first( originalSelection.getSelectedBlocks() );\n\tconst attributesToCopy = {};\n\n\tif ( firstSelectedBlock ) {\n\t\tObject.assign( attributesToCopy, model.schema.getAttributesWithProperty( firstSelectedBlock, 'copyOnReplace', true ) );\n\t}\n\n\treturn model.change( writer => {\n\t\t// Remove the selected content to find out what the parent of the inserted object would be.\n\t\t// It would be removed inside model.insertContent() anyway.\n\t\tif ( !insertionSelection.isCollapsed ) {\n\t\t\tmodel.deleteContent( insertionSelection, { doNotAutoparagraph: true } );\n\t\t}\n\n\t\tlet elementToInsert = object;\n\t\tconst insertionPositionParent = insertionSelection.anchor!.parent;\n\n\t\t// Autoparagraphing of an inline objects.\n\t\tif (\n\t\t\t!model.schema.checkChild( insertionPositionParent as any, object ) &&\n\t\t\tmodel.schema.checkChild( insertionPositionParent as any, 'paragraph' ) &&\n\t\t\tmodel.schema.checkChild( 'paragraph', object )\n\t\t) {\n\t\t\telementToInsert = writer.createElement( 'paragraph' );\n\n\t\t\twriter.insert( object, elementToInsert );\n\t\t}\n\n\t\t// Apply attributes that are allowed on the inserted object (or paragraph if autoparagraphed).\n\t\tmodel.schema.setAllowedAttributes( elementToInsert, attributesToCopy, writer );\n\n\t\t// Insert the prepared content at the optionally adjusted selection.\n\t\tconst affectedRange = model.insertContent( elementToInsert, insertionSelection );\n\n\t\t// Nothing got inserted.\n\t\tif ( affectedRange.isCollapsed ) {\n\t\t\treturn affectedRange;\n\t\t}\n\n\t\tif ( options.setSelection ) {\n\t\t\tupdateSelection( writer, object, options.setSelection, attributesToCopy );\n\t\t}\n\n\t\treturn affectedRange;\n\t} );\n}\n\n// Updates document selection based on given `place` parameter in relation to `contextElement` element.\n//\n// @private\n// @param {module:engine/model/writer~Writer} writer An instance of the model writer.\n// @param {module:engine/model/element~Element} contextElement An element to set the attributes on.\n// @param {'on'|'after'} place The place where selection should be set in relation to the `contextElement` element.\n// Value `on` will set selection on the passed `contextElement`. Value `after` will set selection after `contextElement`.\n// @param {Object} attributes Attributes keys and values to set on a paragraph that this function can create when\n// `place` parameter is equal to `after` but there is no element with `$text` node to set selection in.\nfunction updateSelection(\n\twriter: Writer,\n\tcontextElement: Element,\n\tplace: 'after' | 'on',\n\tparagraphAttributes: Record<string, unknown>\n) {\n\tconst model = writer.model;\n\n\tif ( place == 'on' ) {\n\t\twriter.setSelection( contextElement, 'on' );\n\n\t\treturn;\n\t}\n\n\tif ( place != 'after' ) {\n\t\t/**\n\t\t * The unsupported `options.setSelection` parameter was passed\n\t\t * to the {@link module:engine/model/utils/insertobject insertObject()} function.\n\t\t * Check the {@link module:engine/model/utils/insertobject insertObject()} API documentation for allowed\n\t\t * `options.setSelection` parameter values.\n\t\t *\n\t\t * @error insertobject-invalid-place-parameter-value\n\t\t */\n\t\tthrow new CKEditorError( 'insertobject-invalid-place-parameter-value', model );\n\t}\n\n\tlet nextElement = contextElement.nextSibling;\n\n\tif ( model.schema.isInline( contextElement ) ) {\n\t\twriter.setSelection( contextElement, 'after' );\n\n\t\treturn;\n\t}\n\n\t// Check whether an element next to the inserted element is defined and can contain a text.\n\tconst canSetSelection = nextElement && model.schema.checkChild( nextElement, '$text' );\n\n\t// If the element is missing, but a paragraph could be inserted next to the element, let's add it.\n\tif ( !canSetSelection && model.schema.checkChild( contextElement.parent as any, 'paragraph' ) ) {\n\t\tnextElement = writer.createElement( 'paragraph' );\n\n\t\tmodel.schema.setAllowedAttributes( nextElement, paragraphAttributes, writer );\n\t\tmodel.insertContent( nextElement, writer.createPositionAfter( contextElement ) );\n\t}\n\n\t// Put the selection inside the element, at the beginning.\n\tif ( nextElement ) {\n\t\twriter.setSelection( nextElement, 0 );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/modifyselection\n */\n\nimport DocumentSelection from '../documentselection';\nimport Position from '../position';\nimport Range from '../range';\nimport TreeWalker, { type TreeWalkerValue } from '../treewalker';\n\nimport type Model from '../model';\nimport type Schema from '../schema';\nimport type Selection from '../selection';\nimport type Text from '../text';\nimport type Node from '../node';\n\nimport { isInsideSurrogatePair, isInsideCombinedSymbol, isInsideEmojiSequence } from '@ckeditor/ckeditor5-utils';\n\nconst wordBoundaryCharacters = ' ,.?!:;\"-()';\n\n/**\n * Modifies the selection. Currently, the supported modifications are:\n *\n * * Extending. The selection focus is moved in the specified `options.direction` with a step specified in `options.unit`.\n * Possible values for `unit` are:\n *  * `'character'` (default) - moves selection by one user-perceived character. In most cases this means moving by one\n *  character in `String` sense. However, unicode also defines \"combing marks\". These are special symbols, that combines\n *  with a symbol before it (\"base character\") to create one user-perceived character. For example, `q̣̇` is a normal\n *  letter `q` with two \"combining marks\": upper dot (`Ux0307`) and lower dot (`Ux0323`). For most actions, i.e. extending\n *  selection by one position, it is correct to include both \"base character\" and all of it's \"combining marks\". That is\n *  why `'character'` value is most natural and common method of modifying selection.\n *  * `'codePoint'` - moves selection by one unicode code point. In contrary to, `'character'` unit, this will insert\n *  selection between \"base character\" and \"combining mark\", because \"combining marks\" have their own unicode code points.\n *  However, for technical reasons, unicode code points with values above `UxFFFF` are represented in native `String` by\n *  two characters, called \"surrogate pairs\". Halves of \"surrogate pairs\" have a meaning only when placed next to each other.\n *  For example `𨭎` is represented in `String` by `\\uD862\\uDF4E`. Both `\\uD862` and `\\uDF4E` do not have any meaning\n *  outside the pair (are rendered as ? when alone). Position between them would be incorrect. In this case, selection\n *  extension will include whole \"surrogate pair\".\n *  * `'word'` - moves selection by a whole word.\n *\n * **Note:** if you extend a forward selection in a backward direction you will in fact shrink it.\n *\n * **Note:** Use {@link module:engine/model/model~Model#modifySelection} instead of this function.\n * This function is only exposed to be reusable in algorithms\n * which change the {@link module:engine/model/model~Model#modifySelection}\n * method's behavior.\n *\n * @param {module:engine/model/model~Model} model The model in context of which\n * the selection modification should be performed.\n * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n * The selection to modify.\n * @param {Object} [options]\n * @param {'forward'|'backward'} [options.direction='forward'] The direction in which the selection should be modified.\n * @param {'character'|'codePoint'|'word'} [options.unit='character'] The unit by which selection should be modified.\n * @param {Boolean} [options.treatEmojiAsSingleUnit=false] Whether multi-characer emoji sequences should be handled as single unit.\n */\nexport default function modifySelection(\n\tmodel: Model,\n\tselection: Selection | DocumentSelection,\n\toptions: {\n\t\tdirection?: 'forward' | 'backward';\n\t\tunit?: 'character' | 'codePoint' | 'word';\n\t\ttreatEmojiAsSingleUnit?: boolean;\n\t} = {}\n): void {\n\tconst schema = model.schema;\n\tconst isForward = options.direction != 'backward';\n\tconst unit = options.unit ? options.unit : 'character';\n\tconst treatEmojiAsSingleUnit = !!options.treatEmojiAsSingleUnit;\n\n\tconst focus = selection.focus!;\n\n\tconst walker = new TreeWalker( {\n\t\tboundaries: getSearchRange( focus, isForward ),\n\t\tsingleCharacters: true,\n\t\tdirection: isForward ? 'forward' : 'backward'\n\t} );\n\n\tconst data = { walker, schema, isForward, unit, treatEmojiAsSingleUnit };\n\n\tlet next;\n\n\twhile ( ( next = walker.next() ) ) {\n\t\tif ( next.done ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = tryExtendingTo( data, next.value );\n\n\t\tif ( position ) {\n\t\t\tif ( selection instanceof DocumentSelection ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\twriter.setSelectionFocus( position );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tselection.setFocus( position );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\t}\n}\n\n// Checks whether the selection can be extended to the the walker's next value (next position).\n// @param {{ walker, unit, isForward, schema, treatEmojiAsSingleUnit }} data\n// @param {module:engine/view/treewalker~TreeWalkerValue} value\nfunction tryExtendingTo(\n\tdata: {\n\t\twalker: TreeWalker;\n\t\tschema: Schema;\n\t\tisForward: boolean;\n\t\tunit: 'character' | 'codePoint' | 'word';\n\t\ttreatEmojiAsSingleUnit: boolean;\n\t},\n\tvalue: TreeWalkerValue\n): Position | undefined {\n\tconst { isForward, walker, unit, schema, treatEmojiAsSingleUnit } = data;\n\tconst { type, item, nextPosition } = value;\n\n\t// If found text, we can certainly put the focus in it. Let's just find a correct position\n\t// based on the unit.\n\tif ( type == 'text' ) {\n\t\tif ( data.unit === 'word' ) {\n\t\t\treturn getCorrectWordBreakPosition( walker, isForward );\n\t\t}\n\n\t\treturn getCorrectPosition( walker, unit, treatEmojiAsSingleUnit );\n\t}\n\n\t// Entering an element.\n\tif ( type == ( isForward ? 'elementStart' : 'elementEnd' ) ) {\n\t\t// If it's a selectable, we can select it now.\n\t\tif ( schema.isSelectable( item ) ) {\n\t\t\treturn Position._createAt( item, isForward ? 'after' : 'before' );\n\t\t}\n\n\t\t// If text allowed on this position, extend to this place.\n\t\tif ( schema.checkChild( nextPosition, '$text' ) ) {\n\t\t\treturn nextPosition;\n\t\t}\n\t}\n\t// Leaving an element.\n\telse {\n\t\t// If leaving a limit element, stop.\n\t\tif ( schema.isLimit( item ) ) {\n\t\t\t// NOTE: Fast-forward the walker until the end.\n\t\t\twalker.skip( () => true );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// If text allowed on this position, extend to this place.\n\t\tif ( schema.checkChild( nextPosition, '$text' ) ) {\n\t\t\treturn nextPosition;\n\t\t}\n\t}\n}\n\n// Finds a correct position by walking in a text node and checking whether selection can be extended to given position\n// or should be extended further.\n//\n// @param {module:engine/model/treewalker~TreeWalker} walker\n// @param {String} unit The unit by which selection should be modified.\n// @param {Boolean} treatEmojiAsSingleUnit\nfunction getCorrectPosition(\n\twalker: TreeWalker,\n\tunit: string,\n\ttreatEmojiAsSingleUnit: boolean\n): Position {\n\tconst textNode = walker.position.textNode;\n\n\tif ( textNode ) {\n\t\tconst data = textNode.data;\n\t\tlet offset = walker.position.offset - textNode.startOffset!;\n\n\t\twhile (\n\t\t\tisInsideSurrogatePair( data, offset ) ||\n\t\t\t( unit == 'character' && isInsideCombinedSymbol( data, offset ) ) ||\n\t\t\t( treatEmojiAsSingleUnit && isInsideEmojiSequence( data, offset ) )\n\t\t) {\n\t\t\twalker.next();\n\n\t\t\toffset = walker.position.offset - textNode.startOffset!;\n\t\t}\n\t}\n\n\treturn walker.position;\n}\n\n// Finds a correct position of a word break by walking in a text node and checking whether selection can be extended to given position\n// or should be extended further.\n//\n// @param {module:engine/model/treewalker~TreeWalker} walker\n// @param {Boolean} isForward Is the direction in which the selection should be modified is forward.\nfunction getCorrectWordBreakPosition( walker: TreeWalker, isForward: boolean ): Position {\n\tlet textNode: Node | null = walker.position.textNode;\n\n\tif ( !textNode ) {\n\t\ttextNode = isForward ? walker.position.nodeAfter : walker.position.nodeBefore;\n\t}\n\n\twhile ( textNode && textNode.is( '$text' ) ) {\n\t\tconst offset = walker.position.offset - textNode.startOffset!;\n\n\t\t// Check of adjacent text nodes with different attributes (like BOLD).\n\t\t// Example          : 'foofoo []bar<$text bold=\"true\">bar</$text> bazbaz'\n\t\t// should expand to : 'foofoo [bar<$text bold=\"true\">bar</$text>] bazbaz'.\n\t\tif ( isAtNodeBoundary( textNode, offset, isForward ) ) {\n\t\t\ttextNode = isForward ? walker.position.nodeAfter : walker.position.nodeBefore;\n\t\t}\n\t\t// Check if this is a word boundary.\n\t\telse if ( isAtWordBoundary( textNode.data, offset, isForward ) ) {\n\t\t\tbreak;\n\t\t}\n\t\t// Maybe one more character.\n\t\telse {\n\t\t\twalker.next();\n\t\t}\n\t}\n\n\treturn walker.position;\n}\n\nfunction getSearchRange( start: Position, isForward: boolean ) {\n\tconst root = start.root;\n\tconst searchEnd = Position._createAt( root, isForward ? 'end' : 0 );\n\n\tif ( isForward ) {\n\t\treturn new Range( start, searchEnd );\n\t} else {\n\t\treturn new Range( searchEnd, start );\n\t}\n}\n\n// Checks if selection is on word boundary.\n//\n// @param {String} data The text node value to investigate.\n// @param {Number} offset Position offset.\n// @param {Boolean} isForward Is the direction in which the selection should be modified is forward.\nfunction isAtWordBoundary( data: string, offset: number, isForward: boolean ) {\n\t// The offset to check depends on direction.\n\tconst offsetToCheck = offset + ( isForward ? 0 : -1 );\n\n\treturn wordBoundaryCharacters.includes( data.charAt( offsetToCheck ) );\n}\n\n// Checks if selection is on node boundary.\n//\n// @param {module:engine/model/text~Text} textNode The text node to investigate.\n// @param {Number} offset Position offset.\n// @param {Boolean} isForward Is the direction in which the selection should be modified is forward.\nfunction isAtNodeBoundary( textNode: Text, offset: number, isForward: boolean ) {\n\treturn offset === ( isForward ? textNode.offsetSize : 0 );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/model\n */\n\nimport Batch, { type BatchType } from './batch';\nimport Document from './document';\nimport MarkerCollection from './markercollection';\nimport ModelPosition, { type PositionStickiness } from './position';\nimport ModelRange from './range';\nimport ModelSelection, { type Selectable } from './selection';\nimport OperationFactory from './operation/operationfactory';\nimport Schema from './schema';\nimport Writer from './writer';\n\nimport { autoParagraphEmptyRoots } from './utils/autoparagraphing';\nimport { injectSelectionPostFixer } from './utils/selection-post-fixer';\nimport deleteContent from './utils/deletecontent';\nimport getSelectedContent from './utils/getselectedcontent';\nimport insertContent from './utils/insertcontent';\nimport insertObject from './utils/insertobject';\nimport modifySelection from './utils/modifyselection';\n\nimport type ModelDocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type Item from './item';\nimport type ModelElement from './element';\nimport type Operation from './operation/operation';\n\nimport {\n\tCKEditorError,\n\tObservableMixin,\n\ttype DecoratedMethodEvent\n} from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { dumpTrees } = require( '../dev-utils/utils' );\n// @if CK_DEBUG_ENGINE // const { OperationReplayer } = require( '../dev-utils/operationreplayer' ).default;\n\n/**\n * Editor's data model. Read about the model in the\n * {@glink framework/guides/architecture/editing-engine engine architecture guide}.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class Model extends ObservableMixin() {\n\tpublic readonly markers: MarkerCollection;\n\tpublic readonly document: Document;\n\tpublic readonly schema: Schema;\n\n\tprivate readonly _pendingChanges: Array<{ batch: Batch; callback: ( writer: Writer ) => any }>;\n\tprivate _currentWriter: Writer | null;\n\n\tconstructor() {\n\t\tsuper();\n\n\t\t/**\n\t\t * Model's marker collection.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/markercollection~MarkerCollection}\n\t\t */\n\t\tthis.markers = new MarkerCollection();\n\n\t\t/**\n\t\t * Model's document.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/document~Document}\n\t\t */\n\t\tthis.document = new Document( this );\n\n\t\t/**\n\t\t * Model's schema.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/schema~Schema}\n\t\t */\n\t\tthis.schema = new Schema();\n\n\t\t/**\n\t\t * All callbacks added by {@link module:engine/model/model~Model#change} or\n\t\t * {@link module:engine/model/model~Model#enqueueChange} methods waiting to be executed.\n\t\t *\n\t\t * @private\n\t\t * @type {Array.<Function>}\n\t\t */\n\t\tthis._pendingChanges = [];\n\n\t\t/**\n\t\t * The last created and currently used writer instance.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/writer~Writer}\n\t\t */\n\t\tthis._currentWriter = null;\n\n\t\t( [ 'insertContent', 'insertObject', 'deleteContent', 'modifySelection', 'getSelectedContent', 'applyOperation' ] as const )\n\t\t\t.forEach( methodName => this.decorate( methodName ) );\n\n\t\t// Adding operation validation with `highest` priority, so it is called before any other feature would like\n\t\t// to do anything with the operation. If the operation has incorrect parameters it should throw on the earliest occasion.\n\t\tthis.on<ModelApplyOperationEvent>( 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\toperation._validate();\n\t\t}, { priority: 'highest' } );\n\n\t\t// Register some default abstract entities.\n\t\tthis.schema.register( '$root', {\n\t\t\tisLimit: true\n\t\t} );\n\n\t\tthis.schema.register( '$container', {\n\t\t\tallowIn: [ '$root', '$container' ]\n\t\t} );\n\n\t\tthis.schema.register( '$block', {\n\t\t\tallowIn: [ '$root', '$container' ],\n\t\t\tisBlock: true\n\t\t} );\n\n\t\tthis.schema.register( '$blockObject', {\n\t\t\tallowWhere: '$block',\n\t\t\tisBlock: true,\n\t\t\tisObject: true\n\t\t} );\n\n\t\tthis.schema.register( '$inlineObject', {\n\t\t\tallowWhere: '$text',\n\t\t\tallowAttributesOf: '$text',\n\t\t\tisInline: true,\n\t\t\tisObject: true\n\t\t} );\n\n\t\tthis.schema.register( '$text', {\n\t\t\tallowIn: '$block',\n\t\t\tisInline: true,\n\t\t\tisContent: true\n\t\t} );\n\n\t\tthis.schema.register( '$clipboardHolder', {\n\t\t\tallowContentOf: '$root',\n\t\t\tallowChildren: '$text',\n\t\t\tisLimit: true\n\t\t} );\n\n\t\tthis.schema.register( '$documentFragment', {\n\t\t\tallowContentOf: '$root',\n\t\t\tallowChildren: '$text',\n\t\t\tisLimit: true\n\t\t} );\n\n\t\t// An element needed by the `upcastElementToMarker` converter.\n\t\t// This element temporarily represents a marker boundary during the conversion process and is removed\n\t\t// at the end of the conversion. `UpcastDispatcher` or at least `Conversion` class looks like a\n\t\t// better place for this registration but both know nothing about `Schema`.\n\t\tthis.schema.register( '$marker' );\n\t\tthis.schema.addChildCheck( ( context, childDefinition ) => {\n\t\t\tif ( childDefinition.name === '$marker' ) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t} );\n\n\t\tinjectSelectionPostFixer( this );\n\n\t\t// Post-fixer which takes care of adding empty paragraph elements to the empty roots.\n\t\tthis.document.registerPostFixer( autoParagraphEmptyRoots );\n\n\t\t// @if CK_DEBUG_ENGINE // this.on( 'applyOperation', () => {\n\t\t// @if CK_DEBUG_ENGINE // \tdumpTrees( this.document, this.document.version );\n\t\t// @if CK_DEBUG_ENGINE // }, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * The `change()` method is the primary way of changing the model. You should use it to modify all document nodes\n\t * (including detached nodes – i.e. nodes not added to the {@link module:engine/model/model~Model#document model document}),\n\t * the {@link module:engine/model/document~Document#selection document's selection}, and\n\t * {@link module:engine/model/model~Model#markers model markers}.\n\t *\n\t *\t\tmodel.change( writer => {\n\t *\t\t\twriter.insertText( 'foo', paragraph, 'end' );\n\t *\t\t} );\n\t *\n\t * All changes inside the change block use the same {@link module:engine/model/batch~Batch} so they are combined\n\t * into a single undo step.\n\t *\n\t *\t\tmodel.change( writer => {\n\t *\t\t\twriter.insertText( 'foo', paragraph, 'end' ); // foo.\n\t *\n\t *\t\t\tmodel.change( writer => {\n\t *\t\t\t\twriter.insertText( 'bar', paragraph, 'end' ); // foobar.\n\t *\t\t\t} );\n\t *\n\t * \t\t\twriter.insertText( 'bom', paragraph, 'end' ); // foobarbom.\n\t *\t\t} );\n\t *\n\t * The callback of the `change()` block is executed synchronously.\n\t *\n\t * You can also return a value from the change block.\n\t *\n\t *\t\tconst img = model.change( writer => {\n\t *\t\t\treturn writer.createElement( 'img' );\n\t *\t\t} );\n\t *\n\t * @see #enqueueChange\n\t * @param {Function} callback Callback function which may modify the model.\n\t * @returns {*} Value returned by the callback.\n\t */\n\tpublic change<TReturn>( callback: ( writer: Writer ) => TReturn ): TReturn {\n\t\ttry {\n\t\t\tif ( this._pendingChanges.length === 0 ) {\n\t\t\t\t// If this is the outermost block, create a new batch and start `_runPendingChanges` execution flow.\n\t\t\t\tthis._pendingChanges.push( { batch: new Batch(), callback } );\n\n\t\t\t\treturn this._runPendingChanges()[ 0 ];\n\t\t\t} else {\n\t\t\t\t// If this is not the outermost block, just execute the callback.\n\t\t\t\treturn callback( this._currentWriter! );\n\t\t\t}\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\tpublic enqueueChange(\n\t\tbatchOrType: Batch | BatchType | undefined,\n\t\tcallback: ( writer: Writer ) => unknown\n\t): void;\n\tpublic enqueueChange(\n\t\tcallback: ( writer: Writer ) => unknown\n\t): void;\n\n\t/**\n\t * The `enqueueChange()` method performs similar task as the {@link #change `change()` method}, with two major differences.\n\t *\n\t * First, the callback of `enqueueChange()` is executed when all other enqueued changes are done. It might be executed\n\t * immediately if it is not nested in any other change block, but if it is nested in another (enqueue)change block,\n\t * it will be delayed and executed after the outermost block.\n\t *\n\t *\t\tmodel.change( writer => {\n\t *\t\t\tconsole.log( 1 );\n\t *\n\t *\t\t\tmodel.enqueueChange( writer => {\n\t *\t\t\t\tconsole.log( 2 );\n\t *\t\t\t} );\n\t *\n\t * \t\t\tconsole.log( 3 );\n\t *\t\t} ); // Will log: 1, 3, 2.\n\t *\n\t * In addition to that, the changes enqueued with `enqueueChange()` will be converted separately from the changes\n\t * done in the outer `change()` block.\n\t *\n\t * Second, it lets you define the {@link module:engine/model/batch~Batch} into which you want to add your changes.\n\t * By default, a new batch with the default {@link module:engine/model/batch~Batch#constructor batch type} is created.\n\t * In the sample above, the `change` and `enqueueChange` blocks will use a different batch (and a different\n\t * {@link module:engine/model/writer~Writer} instance since each of them operates on a separate batch).\n\t *\n\t *\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t *\t\t\twriter.insertText( 'foo', paragraph, 'end' );\n\t *\t\t} );\n\t *\n\t * When using the `enqueueChange()` block you can also add some changes to the batch you used before.\n\t *\n\t *\t\tmodel.enqueueChange( batch, writer => {\n\t *\t\t\twriter.insertText( 'foo', paragraph, 'end' );\n\t *\t\t} );\n\t *\n\t * In order to make a nested `enqueueChange()` create a single undo step together with the changes done in the outer `change()`\n\t * block, you can obtain the batch instance from the  {@link module:engine/model/writer~Writer#batch writer} of the outer block.\n\t *\n\t * @param {module:engine/model/batch~Batch|Object} [batchOrType] A batch or a\n\t * {@link module:engine/model/batch~Batch#constructor batch type} that should be used in the callback. If not defined, a new batch with\n\t * the default type will be created.\n\t * @param {Function} callback Callback function which may modify the model.\n\t */\n\tpublic enqueueChange(\n\t\tbatchOrType: Batch | BatchType | ( ( writer: Writer ) => unknown ) | undefined,\n\t\tcallback?: ( writer: Writer ) => unknown\n\t): void {\n\t\ttry {\n\t\t\tif ( !batchOrType ) {\n\t\t\t\tbatchOrType = new Batch();\n\t\t\t} else if ( typeof batchOrType === 'function' ) {\n\t\t\t\tcallback = batchOrType;\n\t\t\t\tbatchOrType = new Batch();\n\t\t\t} else if ( !( batchOrType instanceof Batch ) ) {\n\t\t\t\tbatchOrType = new Batch( batchOrType );\n\t\t\t}\n\n\t\t\tthis._pendingChanges.push( { batch: batchOrType, callback } as any );\n\n\t\t\tif ( this._pendingChanges.length == 1 ) {\n\t\t\t\tthis._runPendingChanges();\n\t\t\t}\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\t/**\n\t * {@link module:utils/observablemixin~ObservableMixin#decorate Decorated} function for applying\n\t * {@link module:engine/model/operation/operation~Operation operations} to the model.\n\t *\n\t * This is a low-level way of changing the model. It is exposed for very specific use cases (like the undo feature).\n\t * Normally, to modify the model, you will want to use {@link module:engine/model/writer~Writer `Writer`}.\n\t * See also {@glink framework/guides/architecture/editing-engine#changing-the-model Changing the model} section\n\t * of the {@glink framework/guides/architecture/editing-engine Editing architecture} guide.\n\t *\n\t * @param {module:engine/model/operation/operation~Operation} operation The operation to apply.\n\t */\n\tpublic applyOperation( operation: Operation ): void {\n\t\t// @if CK_DEBUG_ENGINE // console.log( 'Applying ' + operation );\n\n\t\t// @if CK_DEBUG_ENGINE // if ( !this._operationLogs ) {\n\t\t// @if CK_DEBUG_ENGINE //\tthis._operationLogs = [];\n\t\t// @if CK_DEBUG_ENGINE // }\n\n\t\t// @if CK_DEBUG_ENGINE // this._operationLogs.push( JSON.stringify( operation ) );\n\n\t\t// @if CK_DEBUG_ENGINE //if ( !this._appliedOperations ) {\n\t\t// @if CK_DEBUG_ENGINE //\tthis._appliedOperations = [];\n\t\t// @if CK_DEBUG_ENGINE //}\n\n\t\t// @if CK_DEBUG_ENGINE //this._appliedOperations.push( operation );\n\n\t\toperation._execute();\n\t}\n\n\t// @if CK_DEBUG_ENGINE // getAppliedOperation() {\n\t// @if CK_DEBUG_ENGINE //\tif ( !this._appliedOperations ) {\n\t// @if CK_DEBUG_ENGINE //\t\treturn '';\n\t// @if CK_DEBUG_ENGINE //\t}\n\n\t// @if CK_DEBUG_ENGINE //\treturn this._appliedOperations.map( JSON.stringify ).join( '-------' );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // createReplayer( stringifiedOperations ) {\n\t// @if CK_DEBUG_ENGINE //\treturn new OperationReplayer( this, '-------', stringifiedOperations );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t/**\n\t * Inserts content at the position in the editor specified by the selection, as one would expect the paste\n\t * functionality to work.\n\t *\n\t * **Note**: If you want to insert an {@glink framework/guides/deep-dive/schema#object-elements object element}\n\t * (e.g. a {@link module:widget/utils~toWidget widget}), see {@link #insertObject} instead.\n\t *\n\t * This is a high-level method. It takes the {@link #schema schema} into consideration when inserting\n\t * the content, clears the given selection's content before inserting nodes and moves the selection\n\t * to its target position at the end of the process.\n\t * It can split elements, merge them, wrap bare text nodes with paragraphs, etc. &mdash; just like the\n\t * pasting feature should do.\n\t *\n\t * For lower-level methods see {@link module:engine/model/writer~Writer `Writer`}.\n\t *\n\t * This method, unlike {@link module:engine/model/writer~Writer `Writer`}'s methods, does not have to be used\n\t * inside a {@link #change `change()` block}.\n\t *\n\t * # Conversion and schema\n\t *\n\t * Inserting elements and text nodes into the model is not enough to make CKEditor 5 render that content\n\t * to the user. CKEditor 5 implements a model-view-controller architecture and what `model.insertContent()` does\n\t * is only adding nodes to the model. Additionally, you need to define\n\t * {@glink framework/guides/architecture/editing-engine#conversion converters} between the model and view\n\t * and define those nodes in the {@glink framework/guides/architecture/editing-engine#schema schema}.\n\t *\n\t * So, while this method may seem similar to CKEditor 4 `editor.insertHtml()` (in fact, both methods\n\t * are used for paste-like content insertion), the CKEditor 5 method cannot be use to insert arbitrary HTML\n\t * unless converters are defined for all elements and attributes in that HTML.\n\t *\n\t * # Examples\n\t *\n\t * Using `insertContent()` with a manually created model structure:\n\t *\n\t *\t\t// Let's create a document fragment containing such content as:\n\t *\t\t//\n\t *\t\t// <paragraph>foo</paragraph>\n\t *\t\t// <blockQuote>\n\t *\t\t//    <paragraph>bar</paragraph>\n\t *\t\t// </blockQuote>\n\t *\t\tconst docFrag = editor.model.change( writer => {\n\t *\t\t\tconst p1 = writer.createElement( 'paragraph' );\n\t *\t\t\tconst p2 = writer.createElement( 'paragraph' );\n\t *\t\t\tconst blockQuote = writer.createElement( 'blockQuote' );\n\t *\t\t\tconst docFrag = writer.createDocumentFragment();\n\t *\n\t *\t\t\twriter.append( p1, docFrag );\n\t *\t\t\twriter.append( blockQuote, docFrag );\n\t *\t\t\twriter.append( p2, blockQuote );\n\t *\t\t\twriter.insertText( 'foo', p1 );\n\t *\t\t\twriter.insertText( 'bar', p2 );\n\t *\n\t *\t\t\treturn docFrag;\n\t *\t\t} );\n\t *\n\t *\t\t// insertContent() does not have to be used in a change() block. It can, though,\n\t *\t\t// so this code could be moved to the callback defined above.\n\t *\t\teditor.model.insertContent( docFrag );\n\t *\n\t * Using `insertContent()` with an HTML string converted to a model document fragment (similar to the pasting mechanism):\n\t *\n\t *\t\t// You can create your own HtmlDataProcessor instance or use editor.data.processor\n\t *\t\t// if you have not overridden the default one (which is the HtmlDataProcessor instance).\n\t *\t\tconst htmlDP = new HtmlDataProcessor( viewDocument );\n\t *\n\t *\t\t// Convert an HTML string to a view document fragment:\n\t *\t\tconst viewFragment = htmlDP.toView( htmlString );\n\t *\n\t *\t\t// Convert the view document fragment to a model document fragment\n\t *\t\t// in the context of $root. This conversion takes the schema into\n\t *\t\t// account so if, for example, the view document fragment contained a bare text node,\n\t *\t\t// this text node cannot be a child of $root, so it will be automatically\n\t *\t\t// wrapped with a <paragraph>. You can define the context yourself (in the second parameter),\n\t *\t\t// and e.g. convert the content like it would happen in a <paragraph>.\n\t *\t\t// Note: The clipboard feature uses a custom context called $clipboardHolder\n\t *\t\t// which has a loosened schema.\n\t *\t\tconst modelFragment = editor.data.toModel( viewFragment );\n\t *\n\t *\t\teditor.model.insertContent( modelFragment );\n\t *\n\t * By default this method will use the document selection but it can also be used with a position, range or selection instance.\n\t *\n\t *\t\t// Insert text at the current document selection position.\n\t *\t\teditor.model.change( writer => {\n\t *\t\t\teditor.model.insertContent( writer.createText( 'x' ) );\n\t *\t\t} );\n\t *\n\t *\t\t// Insert text at a given position - the document selection will not be modified.\n\t *\t\teditor.model.change( writer => {\n\t *\t\t\teditor.model.insertContent( writer.createText( 'x' ), doc.getRoot(), 2 );\n\t *\n\t *\t\t\t// Which is a shorthand for:\n\t *\t\t\teditor.model.insertContent( writer.createText( 'x' ), writer.createPositionAt( doc.getRoot(), 2 ) );\n\t *\t\t} );\n\t *\n\t * If you want the document selection to be moved to the inserted content, use the\n\t * {@link module:engine/model/writer~Writer#setSelection `setSelection()`} method of the writer after inserting\n\t * the content:\n\t *\n\t *\t\teditor.model.change( writer => {\n\t *\t\t\tconst paragraph = writer.createElement( 'paragraph' );\n\t *\n\t *\t\t\t// Insert an empty paragraph at the beginning of the root.\n\t *\t\t\teditor.model.insertContent( paragraph, writer.createPositionAt( editor.model.document.getRoot(), 0 ) );\n\t *\n\t *\t\t\t// Move the document selection to the inserted paragraph.\n\t *\t\t\twriter.setSelection( paragraph, 'in' );\n\t *\t\t} );\n\t *\n\t * If an instance of the {@link module:engine/model/selection~Selection model selection} is passed as `selectable`,\n\t * the new content will be inserted at the passed selection (instead of document selection):\n\t *\n\t *\t\teditor.model.change( writer => {\n\t *\t\t\t// Create a selection in a paragraph that will be used as a place of insertion.\n\t *\t\t\tconst selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t *\t\t\t// Insert the new text at the created selection.\n\t *\t\t\teditor.model.insertContent( writer.createText( 'x' ), selection );\n\t *\n\t *\t\t\t// insertContent() modifies the passed selection instance so it can be used to set the document selection.\n\t *\t\t\t// Note: This is not necessary when you passed the document selection to insertContent().\n\t *\t\t\twriter.setSelection( selection );\n\t *\t\t} );\n\t *\n\t * @fires insertContent\n\t * @param {module:engine/model/documentfragment~DocumentFragment|module:engine/model/item~Item} content The content to insert.\n\t * @param {module:engine/model/selection~Selectable} [selectable=model.document.selection]\n\t * The selection into which the content should be inserted. If not provided the current model document selection will be used.\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] To be used when a model item was passed as `selectable`.\n\t * This param defines a position in relation to that item.\n\t * @returns {module:engine/model/range~Range} Range which contains all the performed changes. This is a range that, if removed,\n\t * would return the model to the state before the insertion. If no changes were preformed by `insertContent`, returns a range collapsed\n\t * at the insertion position.\n\t */\n\tpublic insertContent(\n\t\tcontent: Item | ModelDocumentFragment,\n\t\tselectable?: Selectable,\n\t\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in'\n\t): ModelRange {\n\t\treturn insertContent( this, content, selectable, placeOrOffset );\n\t}\n\n\t/**\n\t * Inserts an {@glink framework/guides/deep-dive/schema#object-elements object element} at a specific position in the editor content.\n\t *\n\t * This is a high-level API:\n\t * * It takes the {@link #schema schema} into consideration,\n\t * * It clears the content of passed `selectable` before inserting,\n\t * * It can move the selection at the end of the process,\n\t * * It will copy the selected block's attributes to preserve them upon insertion,\n\t * * It can split elements or wrap inline objects with paragraphs if they are not allowed in target position,\n\t * * etc.\n\t *\n\t * # Notes\n\t *\n\t * * If you want to insert a non-object content, see {@link #insertContent} instead.\n\t * * For lower-level API, see {@link module:engine/model/writer~Writer `Writer`}.\n\t * * Unlike {@link module:engine/model/writer~Writer `Writer`}, this method does not have to be used inside\n\t * a {@link #change `change()` block}.\n\t * * Inserting object into the model is not enough to make CKEditor 5 render that content to the user.\n\t * CKEditor 5 implements a model-view-controller architecture and what `model.insertObject()` does\n\t * is only adding nodes to the model. Additionally, you need to define\n\t * {@glink framework/guides/architecture/editing-engine#conversion converters} between the model and view\n\t * and define those nodes in the {@glink framework/guides/architecture/editing-engine#schema schema}.\n\t *\n\t * # Examples\n\t *\n\t * Use the following code to insert an object at the current selection and keep the selection on the inserted element:\n\t *\n\t *\t\tconst rawHtmlEmbedElement = writer.createElement( 'rawHtml' );\n\t *\n\t *\t\tmodel.insertObject( rawHtmlEmbedElement, null, null, {\n\t *\t\t\tsetSelection: 'on'\n\t *\t\t} );\n\t *\n\t * Use the following code to insert an object at the current selection and nudge the selection after the inserted object:\n\t *\n\t *\t\tconst pageBreakElement = writer.createElement( 'pageBreak' );\n \t *\n\t *\t\tmodel.insertObject( pageBreakElement, null, null, {\n\t *\t\t\tsetSelection: 'after'\n\t *\t\t} );\n\t *\n\t * Use the following code to insert an object at the current selection and avoid splitting the content (non-destructive insertion):\n\t *\n\t *\t\tconst tableElement = writer.createElement( 'table' );\n \t *\n\t *\t\tmodel.insertObject( tableElement, null, null, {\n\t *\t\t\tfindOptimalPosition: 'auto'\n\t *\t\t} );\n\t *\n\t * Use the following code to insert an object at the specific range (also: replace the content of the range):\n\t *\n\t *\t\tconst tableElement = writer.createElement( 'table' );\n\t *\t\tconst range = model.createRangeOn( model.document.getRoot().getChild( 1 ) );\n \t *\n\t *\t\tmodel.insertObject( tableElement, range );\n\t *\n\t * @param {module:engine/model/element~Element} object An object to be inserted into the model document.\n\t * @param {module:engine/model/selection~Selectable} [selectable=model.document.selection]\n\t * A selectable where the content should be inserted. If not specified, the current\n\t * {@link module:engine/model/document~Document#selection document selection} will be used instead.\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} placeOrOffset Specifies the exact place or offset for the insertion to take place,\n\t * relative to `selectable`.\n\t * @param {Object} [options] Additional options.\n\t * @param {'auto'|'before'|'after'} [options.findOptimalPosition] An option that, when set, adjusts the insertion position (relative to\n\t * `selectable` and `placeOrOffset`) so that the content of `selectable` is not split upon insertion (a.k.a. non-destructive insertion).\n\t * * When `'auto'`, the algorithm will decide whether to insert the object before or after `selectable` to avoid content splitting.\n\t * * When `'before'`, the closest position before `selectable` will be used that will not result in content splitting.\n\t * * When `'after'`, the closest position after `selectable` will be used that will not result in content splitting.\n\t *\n\t * Note that this option only works for block objects. Inline objects are inserted into text and do not split blocks.\n\t * @param {'on'|'after'} [options.setSelection] An option that, when set, moves the\n\t * {@link module:engine/model/document~Document#selection document selection} after inserting the object.\n\t * * When `'on'`, the document selection will be set on the inserted object.\n\t * * When `'after'`, the document selection will move to the closest text node after the inserted object. If there is no\n\t * such text node, a paragraph will be created and the document selection will be moved inside it.\n\t * @returns {module:engine/model/range~Range} A range which contains all the performed changes. This is a range that, if removed,\n\t * would return the model to the state before the insertion. If no changes were preformed by `insertObject()`, returns a range collapsed\n\t * at the insertion position.\n\t */\n\tpublic insertObject(\n\t\tobject: ModelElement,\n\t\tselectable?: Selectable,\n\t\tplaceOrOffset?: number | 'before' | 'end' | 'after' | 'on' | 'in' | null,\n\t\toptions?: {\n\t\t\tfindOptimalPosition?: 'auto' | 'before' | 'after';\n\t\t\tsetSelection?: 'on' | 'after';\n\t\t}\n\t): ModelRange {\n\t\treturn insertObject( this, object, selectable, placeOrOffset, options );\n\t}\n\n\t/**\n\t * Deletes content of the selection and merge siblings. The resulting selection is always collapsed.\n\t *\n\t * **Note:** For the sake of predictability, the resulting selection should always be collapsed.\n\t * In cases where a feature wants to modify deleting behavior so selection isn't collapsed\n\t * (e.g. a table feature may want to keep row selection after pressing <kbd>Backspace</kbd>),\n\t * then that behavior should be implemented in the view's listener. At the same time, the table feature\n\t * will need to modify this method's behavior too, e.g. to \"delete contents and then collapse\n\t * the selection inside the last selected cell\" or \"delete the row and collapse selection somewhere near\".\n\t * That needs to be done in order to ensure that other features which use `deleteContent()` will work well with tables.\n\t *\n\t * @fires deleteContent\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n\t * Selection of which the content should be deleted.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.leaveUnmerged=false] Whether to merge elements after removing the content of the selection.\n\t *\n\t * For example `<heading1>x[x</heading1><paragraph>y]y</paragraph>` will become:\n\t *\n\t * * `<heading1>x^y</heading1>` with the option disabled (`leaveUnmerged == false`)\n\t * * `<heading1>x^</heading1><paragraph>y</paragraph>` with enabled (`leaveUnmerged == true`).\n\t *\n\t * Note: {@link module:engine/model/schema~Schema#isObject object} and {@link module:engine/model/schema~Schema#isLimit limit}\n\t * elements will not be merged.\n\t *\n\t * @param {Boolean} [options.doNotResetEntireContent=false] Whether to skip replacing the entire content with a\n\t * paragraph when the entire content was selected.\n\t *\n\t * For example `<heading1>[x</heading1><paragraph>y]</paragraph>` will become:\n\t *\n\t * * `<paragraph>^</paragraph>` with the option disabled (`doNotResetEntireContent == false`)\n\t * * `<heading1>^</heading1>` with enabled (`doNotResetEntireContent == true`)\n\t *\n\t * @param {Boolean} [options.doNotAutoparagraph=false] Whether to create a paragraph if after content deletion selection is moved\n\t * to a place where text cannot be inserted.\n\t *\n\t * For example `<paragraph>x</paragraph>[<imageBlock src=\"foo.jpg\"></imageBlock>]` will become:\n\t *\n\t * * `<paragraph>x</paragraph><paragraph>[]</paragraph>` with the option disabled (`doNotAutoparagraph == false`)\n\t * * `<paragraph>x[]</paragraph>` with the option enabled (`doNotAutoparagraph == true`).\n\t *\n\t * **Note:** if there is no valid position for the selection, the paragraph will always be created:\n\t *\n\t * `[<imageBlock src=\"foo.jpg\"></imageBlock>]` -> `<paragraph>[]</paragraph>`.\n\t *\n\t * @param {'forward'|'backward'} [options.direction='backward'] The direction in which the content is being consumed.\n\t * Deleting backward corresponds to using the <kbd>Backspace</kbd> key, while deleting content forward corresponds to\n\t * the <kbd>Shift</kbd>+<kbd>Backspace</kbd> keystroke.\n\t */\n\tpublic deleteContent(\n\t\tselection: ModelSelection | DocumentSelection,\n\t\toptions?: {\n\t\t\tleaveUnmerged?: boolean;\n\t\t\tdoNotResetEntireContent?: boolean;\n\t\t\tdoNotAutoparagraph?: boolean;\n\t\t\tdirection?: 'forward' | 'backward';\n\t\t}\n\t): void {\n\t\tdeleteContent( this, selection, options );\n\t}\n\n\t/**\n\t * Modifies the selection. Currently, the supported modifications are:\n\t *\n\t * * Extending. The selection focus is moved in the specified `options.direction` with a step specified in `options.unit`.\n\t * Possible values for `unit` are:\n\t *  * `'character'` (default) - moves selection by one user-perceived character. In most cases this means moving by one\n\t *  character in `String` sense. However, unicode also defines \"combing marks\". These are special symbols, that combines\n\t *  with a symbol before it (\"base character\") to create one user-perceived character. For example, `q̣̇` is a normal\n\t *  letter `q` with two \"combining marks\": upper dot (`Ux0307`) and lower dot (`Ux0323`). For most actions, i.e. extending\n\t *  selection by one position, it is correct to include both \"base character\" and all of it's \"combining marks\". That is\n\t *  why `'character'` value is most natural and common method of modifying selection.\n\t *  * `'codePoint'` - moves selection by one unicode code point. In contrary to, `'character'` unit, this will insert\n\t *  selection between \"base character\" and \"combining mark\", because \"combining marks\" have their own unicode code points.\n\t *  However, for technical reasons, unicode code points with values above `UxFFFF` are represented in native `String` by\n\t *  two characters, called \"surrogate pairs\". Halves of \"surrogate pairs\" have a meaning only when placed next to each other.\n\t *  For example `𨭎` is represented in `String` by `\\uD862\\uDF4E`. Both `\\uD862` and `\\uDF4E` do not have any meaning\n\t *  outside the pair (are rendered as ? when alone). Position between them would be incorrect. In this case, selection\n\t *  extension will include whole \"surrogate pair\".\n\t *  * `'word'` - moves selection by a whole word.\n\t *\n\t * **Note:** if you extend a forward selection in a backward direction you will in fact shrink it.\n\t *\n\t * @fires modifySelection\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n\t * The selection to modify.\n\t * @param {Object} [options]\n\t * @param {'forward'|'backward'} [options.direction='forward'] The direction in which the selection should be modified.\n\t * @param {'character'|'codePoint'|'word'} [options.unit='character'] The unit by which selection should be modified.\n\t * @param {Boolean} [options.treatEmojiAsSingleUnit=false] Whether multi-characer emoji sequences should be handled as single unit.\n\t */\n\tpublic modifySelection(\n\t\tselection: ModelSelection | DocumentSelection,\n\t\toptions?: {\n\t\t\tdirection?: 'forward' | 'backward';\n\t\t\tunit?: 'character' | 'codePoint' | 'word';\n\t\t\ttreatEmojiAsSingleUnit?: boolean;\n\t\t}\n\t): void {\n\t\tmodifySelection( this, selection, options );\n\t}\n\n\t/**\n\t * Gets a clone of the selected content.\n\t *\n\t * For example, for the following selection:\n\t *\n\t * ```html\n\t * <paragraph>x</paragraph>\n\t * <blockQuote>\n\t *\t<paragraph>y</paragraph>\n\t *\t<heading1>fir[st</heading1>\n\t * </blockQuote>\n\t * <paragraph>se]cond</paragraph>\n\t * <paragraph>z</paragraph>\n\t * ```\n\t *\n\t * It will return a document fragment with such a content:\n\t *\n\t * ```html\n\t * <blockQuote>\n\t *\t<heading1>st</heading1>\n\t * </blockQuote>\n\t * <paragraph>se</paragraph>\n\t * ```\n\t *\n\t * @fires getSelectedContent\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n\t * The selection of which content will be returned.\n\t * @returns {module:engine/model/documentfragment~DocumentFragment}\n\t */\n\tpublic getSelectedContent( selection: ModelSelection | DocumentSelection ): ModelDocumentFragment {\n\t\treturn getSelectedContent( this, selection );\n\t}\n\n\t/**\n\t * Checks whether the given {@link module:engine/model/range~Range range} or\n\t * {@link module:engine/model/element~Element element} has any meaningful content.\n\t *\n\t * Meaningful content is:\n\t *\n\t * * any text node (`options.ignoreWhitespaces` allows controlling whether this text node must also contain\n\t * any non-whitespace characters),\n\t * * or any {@link module:engine/model/schema~Schema#isContent content element},\n\t * * or any {@link module:engine/model/markercollection~Marker marker} which\n\t * {@link module:engine/model/markercollection~Marker#_affectsData affects data}.\n\t *\n\t * This means that a range containing an empty `<paragraph></paragraph>` is not considered to have a meaningful content.\n\t * However, a range containing an `<imageBlock></imageBlock>` (which would normally be marked in the schema as an object element)\n\t * is considered non-empty.\n\t *\n\t * @param {module:engine/model/range~Range|module:engine/model/element~Element} rangeOrElement Range or element to check.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.ignoreWhitespaces] Whether text node with whitespaces only should be considered empty.\n\t * @param {Boolean} [options.ignoreMarkers] Whether markers should be ignored.\n\t * @returns {Boolean}\n\t */\n\tpublic hasContent(\n\t\trangeOrElement: ModelRange | ModelElement | ModelDocumentFragment,\n\t\toptions: { ignoreWhitespaces?: boolean; ignoreMarkers?: boolean } = {}\n\t): boolean {\n\t\tconst range = rangeOrElement instanceof ModelRange ? rangeOrElement : ModelRange._createIn( rangeOrElement );\n\n\t\tif ( range.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst { ignoreWhitespaces = false, ignoreMarkers = false } = options;\n\n\t\t// Check if there are any markers which affects data in this given range.\n\t\tif ( !ignoreMarkers ) {\n\t\t\tfor ( const intersectingMarker of this.markers.getMarkersIntersectingRange( range ) ) {\n\t\t\t\tif ( intersectingMarker.affectsData ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor ( const item of range.getItems() ) {\n\t\t\tif ( this.schema.isContent( item ) ) {\n\t\t\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\t\t\tif ( !ignoreWhitespaces ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t} else if ( item.data.search( /\\S/ ) !== -1 ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Creates a position from the given root and path in that root.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionFromPath `Writer#createPositionFromPath()`}.\n\t *\n\t * @param {module:engine/model/element~Element|module:engine/model/documentfragment~DocumentFragment} root Root of the position.\n\t * @param {Array.<Number>} path Position path. See {@link module:engine/model/position~Position#path}.\n\t * @param {module:engine/model/position~PositionStickiness} [stickiness='toNone'] Position stickiness.\n\t * See {@link module:engine/model/position~PositionStickiness}.\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic createPositionFromPath(\n\t\troot: ModelElement | ModelDocumentFragment,\n\t\tpath: Array<number>,\n\t\tstickiness?: PositionStickiness\n\t): ModelPosition {\n\t\treturn new ModelPosition( root, path, stickiness );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/model/position~Position position},\n\t * * a parent element and offset in that element,\n\t * * a parent element and `'end'` (the position will be set at the end of that element),\n\t * * a {@link module:engine/model/item~Item model item} and `'before'` or `'after'`\n\t * (the position will be set before or after the given model item).\n\t *\n\t * This method is a shortcut to other factory methods such as:\n\t *\n\t * * {@link module:engine/model/model~Model#createPositionBefore `createPositionBefore()`},\n\t * * {@link module:engine/model/model~Model#createPositionAfter `createPositionAfter()`}.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionAt `Writer#createPositionAt()`},\n\t *\n\t * @param {module:engine/model/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic createPositionAt(\n\t\titemOrPosition: Item | ModelPosition | ModelDocumentFragment,\n\t\toffset?: number | 'end' | 'before' | 'after'\n\t): ModelPosition {\n\t\treturn ModelPosition._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after the given {@link module:engine/model/item~Item model item}.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionAfter `Writer#createPositionAfter()`}.\n\t *\n\t * @param {module:engine/model/item~Item} item Item after which the position should be placed.\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic createPositionAfter( item: Item ): ModelPosition {\n\t\treturn ModelPosition._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before the given {@link module:engine/model/item~Item model item}.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionBefore `Writer#createPositionBefore()`}.\n\t *\n\t * @param {module:engine/model/item~Item} item Item before which the position should be placed.\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tpublic createPositionBefore( item: Item ): ModelPosition {\n\t\treturn ModelPosition._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from the `start` position to the `end` position.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createRange `Writer#createRange()`}:\n\t *\n\t *\t\tmodel.change( writer => {\n\t *\t\t\tconst range = writer.createRange( start, end );\n\t *\t\t} );\n\t *\n\t * @param {module:engine/model/position~Position} start Start position.\n\t * @param {module:engine/model/position~Position} [end] End position. If not set, the range will be collapsed\n\t * to the `start` position.\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic createRange( start: ModelPosition, end?: ModelPosition ): ModelRange {\n\t\treturn new ModelRange( start, end );\n\t}\n\n\t/**\n\t * Creates a range inside the given element which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createRangeIn `Writer#createRangeIn()`}:\n\t *\n\t *\t\tmodel.change( writer => {\n\t *\t\t\tconst range = writer.createRangeIn( paragraph );\n\t *\t\t} );\n\t *\n\t * @param {module:engine/model/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic createRangeIn( element: ModelElement | ModelDocumentFragment ): ModelRange {\n\t\treturn ModelRange._createIn( element );\n\t}\n\n\t/**\n\t * Creates a range that starts before the given {@link module:engine/model/item~Item model item} and ends after it.\n\t *\n\t * Note: This method is also available on `writer` instance as\n\t * {@link module:engine/model/writer~Writer#createRangeOn `Writer.createRangeOn()`}:\n\t *\n\t *\t\tmodel.change( writer => {\n\t *\t\t\tconst range = writer.createRangeOn( paragraph );\n\t *\t\t} );\n\t *\n\t * @param {module:engine/model/item~Item} item\n\t * @returns {module:engine/model/range~Range}\n\t */\n\tpublic createRangeOn( item: Item ): ModelRange {\n\t\treturn ModelRange._createOn( item );\n\t}\n\n\t/**\n\t * Creates a new selection instance based on the given {@link module:engine/model/selection~Selectable selectable}\n\t * or creates an empty selection if no arguments were passed.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createSelection `Writer#createSelection()`}.\n\t *\n\t *\t\t// Creates empty selection without ranges.\n\t *\t\tconst selection = writer.createSelection();\n\t *\n\t *\t\t// Creates selection at the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tconst selection = writer.createSelection( range );\n\t *\n\t *\t\t// Creates selection at the given ranges\n\t *\t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\tconst selection = writer.createSelection( ranges );\n\t *\n\t *\t\t// Creates selection from the other selection.\n\t *\t\t// Note: It doesn't copies selection attributes.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tconst selection = writer.createSelection( otherSelection );\n\t *\n\t *\t\t// Creates selection from the given document selection.\n\t *\t\t// Note: It doesn't copies selection attributes.\n\t *\t\tconst documentSelection = model.document.selection;\n\t *\t\tconst selection = writer.createSelection( documentSelection );\n\t *\n\t *\t\t// Creates selection at the given position.\n\t *\t\tconst position = writer.createPositionFromPath( root, path );\n\t *\t\tconst selection = writer.createSelection( position );\n\t *\n\t *\t\t// Creates selection at the given offset in the given element.\n\t *\t\tconst paragraph = writer.createElement( 'paragraph' );\n\t *\t\tconst selection = writer.createSelection( paragraph, offset );\n\t *\n\t *\t\t// Creates a range inside an {@link module:engine/model/element~Element element} which starts before the\n\t *\t\t// first child of that element and ends after the last child of that element.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t *\t\t// Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends\n\t *\t\t// just after the item.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'on' );\n\t *\n\t *\t\t// Additional options (`'backward'`) can be specified as the last argument.\n\t *\n\t *\t\t// Creates backward selection.\n\t *\t\tconst selection = writer.createSelection( range, { backward: true } );\n\t *\n\t * @param {module:engine/model/selection~Selectable} selectable\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [optionsOrPlaceOrOffset] Sets place or offset of the selection.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @returns {module:engine/model/selection~Selection}\n\t */\n\tpublic createSelection( ...args: ConstructorParameters<typeof ModelSelection> ): ModelSelection {\n\t\treturn new ModelSelection( ...args );\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/batch~Batch} instance.\n\t *\n\t * **Note:** In most cases creating a batch instance is not necessary as they are created when using:\n\t *\n\t * * {@link #change `change()`},\n\t * * {@link #enqueueChange `enqueueChange()`}.\n\t *\n\t * @param {Object} [type] {@link module:engine/model/batch~Batch#constructor The type} of the batch.\n\t * @returns {module:engine/model/batch~Batch}\n\t */\n\tpublic createBatch( type: BatchType ): Batch {\n\t\treturn new Batch( type );\n\t}\n\n\t/**\n\t * Creates an operation instance from a JSON object (parsed JSON string).\n\t *\n\t * This is an alias for {@link module:engine/model/operation/operationfactory~OperationFactory.fromJSON `OperationFactory.fromJSON()`}.\n\t *\n\t * @param {Object} json Deserialized JSON object.\n\t * @returns {module:engine/model/operation/operation~Operation}\n\t */\n\tpublic createOperationFromJSON( json: unknown ): Operation {\n\t\treturn OperationFactory.fromJSON( json, this.document );\n\t}\n\n\t/**\n\t * Removes all events listeners set by model instance and destroys {@link module:engine/model/document~Document}.\n\t */\n\tpublic destroy(): void {\n\t\tthis.document.destroy();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Common part of {@link module:engine/model/model~Model#change} and {@link module:engine/model/model~Model#enqueueChange}\n\t * which calls callbacks and returns array of values returned by these callbacks.\n\t *\n\t * @private\n\t * @returns {Array.<*>} Array of values returned by callbacks.\n\t */\n\tprivate _runPendingChanges() {\n\t\tconst ret = [];\n\n\t\tthis.fire( '_beforeChanges' );\n\n\t\ttry {\n\t\t\twhile ( this._pendingChanges.length ) {\n\t\t\t\t// Create a new writer using batch instance created for this chain of changes.\n\t\t\t\tconst currentBatch = this._pendingChanges[ 0 ].batch;\n\t\t\t\tthis._currentWriter = new Writer( this, currentBatch );\n\n\t\t\t\t// Execute changes callback and gather the returned value.\n\t\t\t\tconst callbackReturnValue = this._pendingChanges[ 0 ].callback( this._currentWriter );\n\t\t\t\tret.push( callbackReturnValue );\n\n\t\t\t\tthis.document._handleChangeBlock( this._currentWriter );\n\n\t\t\t\tthis._pendingChanges.shift();\n\t\t\t\tthis._currentWriter = null;\n\t\t\t}\n\t\t} finally {\n\t\t\tthis._pendingChanges.length = 0;\n\t\t\tthis._currentWriter = null;\n\n\t\t\tthis.fire( '_afterChanges' );\n\t\t}\n\n\t\treturn ret;\n\t}\n\n\t/**\n\t * Fired when entering the outermost {@link module:engine/model/model~Model#enqueueChange} or\n\t * {@link module:engine/model/model~Model#change} block.\n\t *\n\t * @protected\n\t * @event _beforeChanges\n\t */\n\n\t/**\n\t * Fired when leaving the outermost {@link module:engine/model/model~Model#enqueueChange} or\n\t * {@link module:engine/model/model~Model#change} block.\n\t *\n\t * @protected\n\t * @event _afterChanges\n\t */\n\n\t/**\n\t * Fired every time any {@link module:engine/model/operation/operation~Operation operation} is applied on the model\n\t * using {@link #applyOperation}.\n\t *\n\t * Note that this event is suitable only for very specific use-cases. Use it if you need to listen to every single operation\n\t * applied on the document. However, in most cases {@link module:engine/model/document~Document#event:change} should\n\t * be used.\n\t *\n\t * A few callbacks are already added to this event by engine internal classes:\n\t *\n\t * * with `highest` priority operation is validated,\n\t * * with `normal` priority operation is executed,\n\t * * with `low` priority the {@link module:engine/model/document~Document} updates its version,\n\t * * with `low` priority {@link module:engine/model/liveposition~LivePosition} and {@link module:engine/model/liverange~LiveRange}\n\t * update themselves.\n\t *\n\t * @event applyOperation\n\t * @param {Array} args Arguments of the `applyOperation` which is an array with a single element - applied\n\t * {@link module:engine/model/operation/operation~Operation operation}.\n\t */\n\n\t/**\n\t * Event fired when {@link #insertContent} method is called.\n\t *\n\t * The {@link #insertContent default action of that method} is implemented as a\n\t * listener to this event so it can be fully customized by the features.\n\t *\n\t * **Note** The `selectable` parameter for the {@link #insertContent} is optional. When `undefined` value is passed the method uses\n\t * {@link module:engine/model/document~Document#selection document selection}.\n\t *\n\t * @event insertContent\n\t * @param {Array} args The arguments passed to the original method.\n\t */\n\n\t/**\n\t * Event fired when the {@link #insertObject} method is called.\n\t *\n\t * The {@link #insertObject default action of that method} is implemented as a\n\t * listener to this event so it can be fully customized by the features.\n\t *\n\t * **Note** The `selectable` parameter for the {@link #insertObject} is optional. When `undefined` value is passed the method uses\n\t * {@link module:engine/model/document~Document#selection document selection}.\n\t *\n\t * @event insertObject\n\t * @param {Array} args The arguments passed to the original method.\n\t */\n\n\t/**\n\t * Event fired when {@link #deleteContent} method is called.\n\t *\n\t * The {@link #deleteContent default action of that method} is implemented as a\n\t * listener to this event so it can be fully customized by the features.\n\t *\n\t * @event deleteContent\n\t * @param {Array} args The arguments passed to the original method.\n\t */\n\n\t/**\n\t * Event fired when {@link #modifySelection} method is called.\n\t *\n\t * The {@link #modifySelection default action of that method} is implemented as a\n\t * listener to this event so it can be fully customized by the features.\n\t *\n\t * @event modifySelection\n\t * @param {Array} args The arguments passed to the original method.\n\t */\n\n\t/**\n\t * Event fired when {@link #getSelectedContent} method is called.\n\t *\n\t * The {@link #getSelectedContent default action of that method} is implemented as a\n\t * listener to this event so it can be fully customized by the features.\n\t *\n\t * @event getSelectedContent\n\t * @param {Array} args The arguments passed to the original method.\n\t */\n}\n\nexport type ModelApplyOperationEvent = DecoratedMethodEvent<Model, 'applyOperation'>;\nexport type ModelInsertContentEvent = DecoratedMethodEvent<Model, 'insertContent'>;\nexport type ModelInsertObjectEvent = DecoratedMethodEvent<Model, 'insertObject'>;\nexport type ModelDeleteContentEvent = DecoratedMethodEvent<Model, 'deleteContent'>;\nexport type ModelModifySelectionEvent = DecoratedMethodEvent<Model, 'modifySelection'>;\nexport type ModelGetSelectedContentEvent = DecoratedMethodEvent<Model, 'getSelectedContent'>;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/clickobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport type View from '../view';\n\n/**\n * {@link module:engine/view/document~Document#event:click Click} event observer.\n *\n * Note that this observer is not available by default. To make it available it needs to be added to\n * {@link module:engine/view/view~View view controller}\n * by a {@link module:engine/view/view~View#addObserver} method.\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class ClickObserver extends DomEventObserver<'click'> {\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.domEventType = 'click';\n\t}\n\n\tpublic onDomEvent( domEvent: MouseEvent ): void {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n}\n\nexport type ViewDocumentClickEvent = {\n\tname: 'click';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n\n/**\n * Fired when one of the editables has been clicked.\n *\n * Introduced by {@link module:engine/view/observer/clickobserver~ClickObserver}.\n *\n * Note that this event is not available by default. To make it available\n * {@link module:engine/view/observer/clickobserver~ClickObserver} needs to be added\n * to {@link module:engine/view/view~View} by a {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/clickobserver~ClickObserver\n * @event module:engine/view/document~Document#event:click\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/mouseobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport type View from '../view';\n\n/**\n * Mouse events observer.\n *\n * Note that this observer is not available by default. To make it available it needs to be added to\n * {@link module:engine/view/view~View} by {@link module:engine/view/view~View#addObserver} method.\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class MouseObserver extends DomEventObserver<'mousedown' | 'mouseup' | 'mouseover' | 'mouseout'> {\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.domEventType = [ 'mousedown', 'mouseup', 'mouseover', 'mouseout' ];\n\t}\n\n\tpublic onDomEvent( domEvent: MouseEvent ): void {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n}\n\nexport type ViewDocumentMouseEvent = {\n\tname: 'mousedown' | 'mouseup' | 'mouseover' | 'mouseout';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n\n/**\n * Fired when the mouse button is pressed down on one of the editing roots of the editor.\n *\n * Introduced by {@link module:engine/view/observer/mouseobserver~MouseObserver}.\n *\n * Note that this event is not available by default. To make it available, {@link module:engine/view/observer/mouseobserver~MouseObserver}\n * needs to be added to {@link module:engine/view/view~View} by the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/mouseobserver~MouseObserver\n * @event module:engine/view/document~Document#event:mousedown\n * @param {module:engine/view/observer/domeventdata~DomEventData} data The event data.\n */\n\n/**\n * Fired when the mouse button is released over one of the editing roots of the editor.\n *\n * Introduced by {@link module:engine/view/observer/mouseobserver~MouseObserver}.\n *\n * Note that this event is not available by default. To make it available, {@link module:engine/view/observer/mouseobserver~MouseObserver}\n * needs to be added to {@link module:engine/view/view~View} by the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/mouseobserver~MouseObserver\n * @event module:engine/view/document~Document#event:mouseup\n * @param {module:engine/view/observer/domeventdata~DomEventData} data The event data.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module module:engine/view/upcastwriter\n */\n\nimport DocumentFragment from './documentfragment';\nimport Element, { type ElementAttributes } from './element';\nimport Text from './text';\nimport { isPlainObject } from 'lodash-es';\nimport Position from './position';\nimport Range from './range';\nimport Selection from './selection';\n\nimport type Document from './document';\nimport type Item from './item';\nimport type Node from './node';\n\n/**\n * View upcast writer. It provides a set of methods used to manipulate non-semantic view trees.\n *\n * It should be used only while working on a non-semantic view\n * (e.g. a view created from HTML string on paste).\n * To manipulate a view which was or is being downcasted from the the model use the\n * {@link module:engine/view/downcastwriter~DowncastWriter downcast writer}.\n *\n * Read more about changing the view in the {@glink framework/guides/architecture/editing-engine#changing-the-view Changing the view}\n * section of the {@glink framework/guides/architecture/editing-engine Editing engine architecture} guide.\n *\n * Unlike `DowncastWriter`, which is available in the {@link module:engine/view/view~View#change `View#change()`} block,\n * `UpcastWriter` can be created wherever you need it:\n *\n *\t\tconst writer = new UpcastWriter( viewDocument );\n *\t\tconst text = writer.createText( 'foo!' );\n *\n *\t\twriter.appendChild( text, someViewElement );\n */\nexport default class UpcastWriter {\n\tpublic readonly document: Document;\n\n\t/**\n\t * @param {module:engine/view/document~Document} document The view document instance in which this upcast writer operates.\n\t */\n\tconstructor( document: Document ) {\n\t\t/**\n\t\t * The view document instance in which this upcast writer operates.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = document;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/documentfragment~DocumentFragment} instance.\n\t *\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into the created document fragment.\n\t * @returns {module:engine/view/documentfragment~DocumentFragment} The created document fragment.\n\t */\n\tpublic createDocumentFragment( children: Node | Iterable<Node> ): DocumentFragment {\n\t\treturn new DocumentFragment( this.document, children );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/element~Element} instance.\n\t *\n\t * Attributes can be passed in various formats:\n\t *\n\t *\t\tupcastWriter.createElement( 'div', { class: 'editor', contentEditable: 'true' } ); // object\n\t *\t\tupcastWriter.createElement( 'div', [ [ 'class', 'editor' ], [ 'contentEditable', 'true' ] ] ); // map-like iterator\n\t *\t\tupcastWriter.createElement( 'div', mapOfAttributes ); // map\n\t *\n\t * @param {String} name Node name.\n\t * @param {Object|Iterable} [attrs] Collection of attributes.\n\t * @param {module:engine/view/node~Node|Iterable.<module:engine/view/node~Node>} [children]\n\t * A list of nodes to be inserted into created element.\n\t * @returns {module:engine/view/element~Element} Created element.\n\t */\n\tpublic createElement(\n\t\tname: string,\n\t\tattrs: ElementAttributes,\n\t\tchildren: Node | Iterable<Node>\n\t): Element {\n\t\treturn new Element( this.document, name, attrs, children );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/text~Text} instance.\n\t *\n\t * @param {String} data The text's data.\n\t * @returns {module:engine/view/text~Text} The created text node.\n\t */\n\tpublic createText( data: string ): Text {\n\t\treturn new Text( this.document, data );\n\t}\n\n\t/**\n\t * Clones the provided element.\n\t *\n\t * @see module:engine/view/element~Element#_clone\n\t * @param {module:engine/view/element~Element} element Element to be cloned.\n\t * @param {Boolean} [deep=false] If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any children.\n\t * @returns {module:engine/view/element~Element} Clone of this element.\n\t */\n\tpublic clone( element: Element, deep: boolean = false ): Element {\n\t\treturn element._clone( deep );\n\t}\n\n\t/**\n\t * Appends a child node or a list of child nodes at the end of this node\n\t * and sets the parent of these nodes to this element.\n\t *\n\t * @see module:engine/view/element~Element#_appendChild\n\t * @param {module:engine/view/item~Item|Iterable.<module:engine/view/item~Item>} items Items to be inserted.\n\t * @param {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment} element Element\n\t * to which items will be appended.\n\t * @fires module:engine/view/node~Node#event:change\n\t * @returns {Number} Number of appended nodes.\n\t */\n\tpublic appendChild( items: Item | Iterable<Item>, element: Element | DocumentFragment ): number {\n\t\treturn element._appendChild( items );\n\t}\n\n\t/**\n\t * Inserts a child node or a list of child nodes on the given index and sets the parent of these nodes to\n\t * this element.\n\t *\n\t * @see module:engine/view/element~Element#_insertChild\n\t * @param {Number} index Offset at which nodes should be inserted.\n\t * @param {module:engine/view/item~Item|Iterable.<module:engine/view/item~Item>} items Items to be inserted.\n\t * @param {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment} element Element\n\t * to which items will be inserted.\n\t * @fires module:engine/view/node~Node#event:change\n\t * @returns {Number} Number of inserted nodes.\n\t */\n\tpublic insertChild( index: number, items: Item | Iterable<Item>, element: Element | DocumentFragment ): number {\n\t\treturn element._insertChild( index, items );\n\t}\n\n\t/**\n\t * Removes the given number of child nodes starting at the given index and set the parent of these nodes to `null`.\n\t *\n\t * @see module:engine/view/element~Element#_removeChildren\n\t * @param {Number} index Offset from which nodes will be removed.\n\t * @param {Number} howMany Number of nodes to remove.\n\t * @param {module:engine/view/element~Element|module:engine/view/documentfragment~DocumentFragment} element Element\n\t * which children will be removed.\n\t * @fires module:engine/view/node~Node#event:change\n\t * @returns {Array.<module:engine/view/node~Node>} The array containing removed nodes.\n\t */\n\tpublic removeChildren( index: number, howMany: number, element: Element | DocumentFragment ): Array<Node> {\n\t\treturn element._removeChildren( index, howMany );\n\t}\n\n\t/**\n\t * Removes given element from the view structure. Will not have effect on detached elements.\n\t *\n\t * @param {module:engine/view/element~Element} element Element which will be removed.\n\t * @returns {Array.<module:engine/view/node~Node>} The array containing removed nodes.\n\t */\n\tpublic remove( element: Element ): Array<Node> {\n\t\tconst parent = element.parent;\n\n\t\tif ( parent ) {\n\t\t\treturn this.removeChildren( parent.getChildIndex( element )!, 1, parent );\n\t\t}\n\n\t\treturn [];\n\t}\n\n\t/**\n\t * Replaces given element with the new one in the view structure. Will not have effect on detached elements.\n\t *\n\t * @param {module:engine/view/element~Element} oldElement Element which will be replaced.\n\t * @param {module:engine/view/element~Element} newElement Element which will be inserted in the place of the old element.\n\t * @returns {Boolean} Whether old element was successfully replaced.\n\t */\n\tpublic replace( oldElement: Element, newElement: Element ): boolean {\n\t\tconst parent = oldElement.parent;\n\n\t\tif ( parent ) {\n\t\t\tconst index = parent.getChildIndex( oldElement )!;\n\n\t\t\tthis.removeChildren( index, 1, parent );\n\t\t\tthis.insertChild( index, newElement, parent );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Removes given element from view structure and places its children in its position.\n\t * It does nothing if element has no parent.\n\t *\n\t * @param {module:engine/view/element~Element} element Element to unwrap.\n\t */\n\tpublic unwrapElement( element: Element ): void {\n\t\tconst parent = element.parent;\n\n\t\tif ( parent ) {\n\t\t\tconst index = parent.getChildIndex( element )!;\n\n\t\t\tthis.remove( element );\n\t\t\tthis.insertChild( index, element.getChildren(), parent );\n\t\t}\n\t}\n\n\t/**\n\t * Renames element by creating a copy of a given element but with its name changed and then moving contents of the\n\t * old element to the new one.\n\t *\n\t * Since this function creates a new element and removes the given one, the new element is returned to keep reference.\n\t *\n\t * @param {String} newName New element name.\n\t * @param {module:engine/view/element~Element} element Element to be renamed.\n\t * @returns {module:engine/view/element~Element|null} New element or null if the old element\n\t * was not replaced (happens for detached elements).\n\t */\n\tpublic rename( newName: string, element: Element ): Element | null {\n\t\tconst newElement = new Element( this.document, newName, element.getAttributes(), element.getChildren() );\n\n\t\treturn this.replace( element, newElement ) ? newElement : null;\n\t}\n\n\t/**\n\t * Adds or overwrites element's attribute with a specified key and value.\n\t *\n\t *\t\twriter.setAttribute( 'href', 'http://ckeditor.com', linkElement );\n\t *\n\t * @see module:engine/view/element~Element#_setAttribute\n\t * @param {String} key Attribute key.\n\t * @param {String} value Attribute value.\n\t * @param {module:engine/view/element~Element} element Element for which attribute will be set.\n\t */\n\tpublic setAttribute( key: string, value: string, element: Element ): void {\n\t\telement._setAttribute( key, value );\n\t}\n\n\t/**\n\t * Removes attribute from the element.\n\t *\n\t *\t\twriter.removeAttribute( 'href', linkElement );\n\t *\n\t * @see module:engine/view/element~Element#_removeAttribute\n\t * @param {String} key Attribute key.\n\t * @param {module:engine/view/element~Element} element Element from which attribute will be removed.\n\t */\n\tpublic removeAttribute( key: string, element: Element ): void {\n\t\telement._removeAttribute( key );\n\t}\n\n\t/**\n\t * Adds specified class to the element.\n\t *\n\t *\t\twriter.addClass( 'foo', linkElement );\n\t *\t\twriter.addClass( [ 'foo', 'bar' ], linkElement );\n\t *\n\t * @see module:engine/view/element~Element#_addClass\n\t * @param {Array.<String>|String} className Single class name or array of class names which will be added.\n\t * @param {module:engine/view/element~Element} element Element for which class will be added.\n\t */\n\tpublic addClass( className: string | Array<string>, element: Element ): void {\n\t\telement._addClass( className );\n\t}\n\n\t/**\n\t * Removes specified class from the element.\n\t *\n\t *\t\twriter.removeClass( 'foo', linkElement );\n\t *\t\twriter.removeClass( [ 'foo', 'bar' ], linkElement );\n\t *\n\t * @see module:engine/view/element~Element#_removeClass\n\t * @param {Array.<String>|String} className Single class name or array of class names which will be removed.\n\t * @param {module:engine/view/element~Element} element Element from which class will be removed.\n\t */\n\tpublic removeClass( className: string | Array<string>, element: Element ): void {\n\t\telement._removeClass( className );\n\t}\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t *\t\twriter.setStyle( 'color', 'red', element );\n\t *\t\twriter.setStyle( {\n\t *\t\t\tcolor: 'red',\n\t *\t\t\tposition: 'fixed'\n\t *\t\t}, element );\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @see module:engine/view/element~Element#_setStyle\n\t * @param {String|Object} property Property name or object with key - value pairs.\n\t * @param {String} [value] Value to set. This parameter is ignored if object is provided as the first parameter.\n\t * @param {module:engine/view/element~Element} element Element for which style will be added.\n\t */\n\tpublic setStyle( property: string, value: string, element: Element ): void;\n\tpublic setStyle( property: Record<string, string>, element: Element ): void;\n\tpublic setStyle( property: string | Record<string, string>, valueOrElement: string | Element, element?: Element ): void {\n\t\tif ( isPlainObject( property ) && element === undefined ) {\n\t\t\t( valueOrElement as Element )._setStyle( property as Record<string, string> );\n\t\t} else {\n\t\t\telement!._setStyle( property as string, valueOrElement as string );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified style from the element.\n\t *\n\t *\t\twriter.removeStyle( 'color', element );  // Removes 'color' style.\n\t *\t\twriter.removeStyle( [ 'color', 'border-top' ], element ); // Removes both 'color' and 'border-top' styles.\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#remove `StylesMap#remove()`} for details.\n\t *\n\t * @see module:engine/view/element~Element#_removeStyle\n\t * @param {Array.<String>|String} property Style property name or names to be removed.\n\t * @param {module:engine/view/element~Element} element Element from which style will be removed.\n\t */\n\tpublic removeStyle( property: string | Array<string>, element: Element ): void {\n\t\telement._removeStyle( property );\n\t}\n\n\t/**\n\t * Sets a custom property on element. Unlike attributes, custom properties are not rendered to the DOM,\n\t * so they can be used to add special data to elements.\n\t *\n\t * @see module:engine/view/element~Element#_setCustomProperty\n\t * @param {String|Symbol} key Custom property name/key.\n\t * @param {*} value Custom property value to be stored.\n\t * @param {module:engine/view/element~Element} element Element for which custom property will be set.\n\t */\n\tpublic setCustomProperty( key: string | symbol, value: unknown, element: Element ): void {\n\t\telement._setCustomProperty( key, value );\n\t}\n\n\t/**\n\t * Removes a custom property stored under the given key.\n\t *\n\t * @see module:engine/view/element~Element#_removeCustomProperty\n\t * @param {String|Symbol} key Name/key of the custom property to be removed.\n\t * @param {module:engine/view/element~Element} element Element from which the custom property will be removed.\n\t * @returns {Boolean} Returns true if property was removed.\n\t */\n\tpublic removeCustomProperty( key: string | symbol, element: Element ): boolean {\n\t\treturn element._removeCustomProperty( key );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link #createPositionBefore},\n\t * * {@link #createPositionAfter},\n\t *\n\t * @param {module:engine/view/item~Item|module:engine/model/position~Position} itemOrPosition\n\t * @param {Number|'end'|'before'|'after'} [offset] Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/view/item~Item view item}.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionAt( itemOrPosition: Item | Position, offset?: number | 'before' | 'after' | 'end' ): Position {\n\t\treturn Position._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @param {module:engine/view/item~Item} item View item after which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn Position._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @param {module:engine/view/item~Item} item View item before which the position should be located.\n\t * @returns {module:engine/view/position~Position}\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn Position._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** This factory method creates it's own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param {module:engine/view/position~Position} start Start position.\n\t * @param {module:engine/view/position~Position} [end] End position. If not set, range will be collapsed at `start` position.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRange( start: Position, end: Position ): Range {\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t *\n\t * @param {module:engine/view/item~Item} item\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRangeOn( item: Item ): Range {\n\t\treturn Range._createOn( item );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @param {module:engine/view/element~Element} element Element which is a parent for the range.\n\t * @returns {module:engine/view/range~Range}\n\t */\n\tpublic createRangeIn( element: Element ): Range {\n\t\treturn Range._createIn( element );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * \t\t// Creates empty selection without ranges.\n\t *\t\tconst selection = writer.createSelection();\n\t *\n\t *\t\t// Creates selection at the given range.\n\t *\t\tconst range = writer.createRange( start, end );\n\t *\t\tconst selection = writer.createSelection( range );\n\t *\n\t *\t\t// Creates selection at the given ranges\n\t * \t\tconst ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t *\t\tconst selection = writer.createSelection( ranges );\n\t *\n\t *\t\t// Creates selection from the other selection.\n\t *\t\tconst otherSelection = writer.createSelection();\n\t *\t\tconst selection = writer.createSelection( otherSelection );\n\t *\n\t *\t\t// Creates selection from the document selection.\n\t *\t\tconst selection = writer.createSelection( editor.editing.view.document.selection );\n\t *\n\t * \t\t// Creates selection at the given position.\n\t *\t\tconst position = writer.createPositionFromPath( root, path );\n\t *\t\tconst selection = writer.createSelection( position );\n\t *\n\t *\t\t// Creates collapsed selection at the position of given item and offset.\n\t *\t\tconst paragraph = writer.createContainerElement( 'paragraph' );\n\t *\t\tconst selection = writer.createSelection( paragraph, offset );\n\t *\n\t *\t\t// Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t *\t\t// first child of that element and ends after the last child of that element.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t *\t\t// Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t *\t\t// just after the item.\n\t *\t\tconst selection = writer.createSelection( paragraph, 'on' );\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t *\t\t// Creates backward selection.\n\t *\t\tconst selection = writer.createSelection( range, { backward: true } );\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t *\t\t// Creates fake selection with label.\n\t *\t\tconst selection = writer.createSelection( range, { fake: true, label: 'foo' } );\n\t *\n\t * @param {module:engine/view/selection~Selectable} [selectable=null]\n\t * @param {Number|'before'|'end'|'after'|'on'|'in'} [placeOrOffset] Offset or place when selectable is an `Item`.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.backward] Sets this selection instance to be backward.\n\t * @param {Boolean} [options.fake] Sets this selection instance to be marked as `fake`.\n\t * @param {String} [options.label] Label for the fake selection.\n\t * @returns {module:engine/view/selection~Selection}\n\t */\n\tpublic createSelection( ...args: ConstructorParameters<typeof Selection> ): Selection {\n\t\treturn new Selection( ...args );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/utils\n */\n\nimport type { BoxSides, PropertyDescriptor, StyleValue } from '../stylesmap';\n\nconst HEX_COLOR_REGEXP = /^#([0-9a-f]{3,4}|[0-9a-f]{6}|[0-9a-f]{8})$/i;\nconst RGB_COLOR_REGEXP = /^rgb\\([ ]?([0-9]{1,3}[ %]?,[ ]?){2,3}[0-9]{1,3}[ %]?\\)$/i;\nconst RGBA_COLOR_REGEXP = /^rgba\\([ ]?([0-9]{1,3}[ %]?,[ ]?){3}(1|[0-9]+%|[0]?\\.?[0-9]+)\\)$/i;\nconst HSL_COLOR_REGEXP = /^hsl\\([ ]?([0-9]{1,3}[ %]?[,]?[ ]*){3}(1|[0-9]+%|[0]?\\.?[0-9]+)?\\)$/i;\nconst HSLA_COLOR_REGEXP = /^hsla\\([ ]?([0-9]{1,3}[ %]?,[ ]?){2,3}(1|[0-9]+%|[0]?\\.?[0-9]+)\\)$/i;\n\nconst COLOR_NAMES = new Set( [\n\t// CSS Level 1\n\t'black', 'silver', 'gray', 'white', 'maroon', 'red', 'purple', 'fuchsia',\n\t'green', 'lime', 'olive', 'yellow', 'navy', 'blue', 'teal', 'aqua',\n\t// CSS Level 2 (Revision 1)\n\t'orange',\n\t// CSS Color Module Level 3\n\t'aliceblue', 'antiquewhite', 'aquamarine', 'azure', 'beige', 'bisque', 'blanchedalmond', 'blueviolet', 'brown',\n\t'burlywood', 'cadetblue', 'chartreuse', 'chocolate', 'coral', 'cornflowerblue', 'cornsilk', 'crimson', 'cyan',\n\t'darkblue', 'darkcyan', 'darkgoldenrod', 'darkgray', 'darkgreen', 'darkgrey', 'darkkhaki', 'darkmagenta',\n\t'darkolivegreen', 'darkorange', 'darkorchid', 'darkred', 'darksalmon', 'darkseagreen', 'darkslateblue',\n\t'darkslategray', 'darkslategrey', 'darkturquoise', 'darkviolet', 'deeppink', 'deepskyblue', 'dimgray', 'dimgrey',\n\t'dodgerblue', 'firebrick', 'floralwhite', 'forestgreen', 'gainsboro', 'ghostwhite', 'gold', 'goldenrod',\n\t'greenyellow', 'grey', 'honeydew', 'hotpink', 'indianred', 'indigo', 'ivory', 'khaki', 'lavender', 'lavenderblush',\n\t'lawngreen', 'lemonchiffon', 'lightblue', 'lightcoral', 'lightcyan', 'lightgoldenrodyellow', 'lightgray',\n\t'lightgreen', 'lightgrey', 'lightpink', 'lightsalmon', 'lightseagreen', 'lightskyblue', 'lightslategray',\n\t'lightslategrey', 'lightsteelblue', 'lightyellow', 'limegreen', 'linen', 'magenta', 'mediumaquamarine',\n\t'mediumblue', 'mediumorchid', 'mediumpurple', 'mediumseagreen', 'mediumslateblue', 'mediumspringgreen',\n\t'mediumturquoise', 'mediumvioletred', 'midnightblue', 'mintcream', 'mistyrose', 'moccasin', 'navajowhite',\n\t'oldlace', 'olivedrab', 'orangered', 'orchid', 'palegoldenrod', 'palegreen', 'paleturquoise', 'palevioletred',\n\t'papayawhip', 'peachpuff', 'peru', 'pink', 'plum', 'powderblue', 'rosybrown', 'royalblue', 'saddlebrown', 'salmon',\n\t'sandybrown', 'seagreen', 'seashell', 'sienna', 'skyblue', 'slateblue', 'slategray', 'slategrey', 'snow',\n\t'springgreen', 'steelblue', 'tan', 'thistle', 'tomato', 'turquoise', 'violet', 'wheat', 'whitesmoke', 'yellowgreen',\n\t// CSS Color Module Level 3 (System Colors)\n\t'activeborder', 'activecaption', 'appworkspace', 'background', 'buttonface', 'buttonhighlight', 'buttonshadow',\n\t'buttontext', 'captiontext', 'graytext', 'highlight', 'highlighttext', 'inactiveborder', 'inactivecaption',\n\t'inactivecaptiontext', 'infobackground', 'infotext', 'menu', 'menutext', 'scrollbar', 'threeddarkshadow',\n\t'threedface', 'threedhighlight', 'threedlightshadow', 'threedshadow', 'window', 'windowframe', 'windowtext',\n\t// CSS Color Module Level 4\n\t'rebeccapurple',\n\t// Keywords\n\t'currentcolor', 'transparent'\n] );\n\n/**\n * Checks if string contains [color](https://developer.mozilla.org/en-US/docs/Web/CSS/color) CSS value.\n *\n *\t\tisColor( '#f00' );\t\t\t\t\t\t// true\n *\t\tisColor( '#AA00BB33' );\t\t\t\t\t// true\n *\t\tisColor( 'rgb(0, 0, 250)' );\t\t\t// true\n *\t\tisColor( 'hsla(240, 100%, 50%, .7)' );\t// true\n *\t\tisColor( 'deepskyblue' );\t\t\t\t// true\n *\n * **Note**: It does not support CSS Level 4 whitespace syntax, system colors and radius values for HSL colors.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isColor( string: string ): boolean {\n\t// As far as I was able to test checking some pre-conditions is faster than joining each test with ||.\n\tif ( string.startsWith( '#' ) ) {\n\t\treturn HEX_COLOR_REGEXP.test( string );\n\t}\n\n\tif ( string.startsWith( 'rgb' ) ) {\n\t\treturn RGB_COLOR_REGEXP.test( string ) || RGBA_COLOR_REGEXP.test( string );\n\t}\n\n\tif ( string.startsWith( 'hsl' ) ) {\n\t\treturn HSL_COLOR_REGEXP.test( string ) || HSLA_COLOR_REGEXP.test( string );\n\t}\n\n\t// Array check > RegExp test.\n\treturn COLOR_NAMES.has( string.toLowerCase() );\n}\n\nconst lineStyleValues = [ 'none', 'hidden', 'dotted', 'dashed', 'solid', 'double', 'groove', 'ridge', 'inset', 'outset' ];\n\n/**\n * Checks if string contains [line style](https://developer.mozilla.org/en-US/docs/Web/CSS/border-style) CSS value.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isLineStyle( string: string ): boolean {\n\treturn lineStyleValues.includes( string );\n}\n\nconst lengthRegExp = /^([+-]?[0-9]*([.][0-9]+)?(px|cm|mm|in|pc|pt|ch|em|ex|rem|vh|vw|vmin|vmax)|0)$/;\n\n/**\n * Checks if string contains [length](https://developer.mozilla.org/en-US/docs/Web/CSS/length) CSS value.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isLength( string: string ): boolean {\n\treturn lengthRegExp.test( string );\n}\n\nconst PERCENTAGE_VALUE_REGEXP = /^[+-]?[0-9]*([.][0-9]+)?%$/;\n\n/**\n * Checks if string contains [percentage](https://developer.mozilla.org/en-US/docs/Web/CSS/percentage) CSS value.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isPercentage( string: string ): boolean {\n\treturn PERCENTAGE_VALUE_REGEXP.test( string );\n}\n\nconst repeatValues = [ 'repeat-x', 'repeat-y', 'repeat', 'space', 'round', 'no-repeat' ];\n\n/**\n * Checks if string contains [background repeat](https://developer.mozilla.org/en-US/docs/Web/CSS/background-repeat) CSS value.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isRepeat( string: string ): boolean {\n\treturn repeatValues.includes( string );\n}\n\nconst positionValues = [ 'center', 'top', 'bottom', 'left', 'right' ];\n\n/**\n * Checks if string contains [background position](https://developer.mozilla.org/en-US/docs/Web/CSS/background-position) CSS value.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isPosition( string: string ): boolean {\n\treturn positionValues.includes( string );\n}\n\nconst attachmentValues = [ 'fixed', 'scroll', 'local' ];\n\n/**\n * Checks if string contains [background attachment](https://developer.mozilla.org/en-US/docs/Web/CSS/background-attachment) CSS value.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isAttachment( string: string ): boolean {\n\treturn attachmentValues.includes( string );\n}\n\nconst urlRegExp = /^url\\(/;\n\n/**\n * Checks if string contains [URL](https://developer.mozilla.org/en-US/docs/Web/CSS/url) CSS value.\n *\n * @param {String} string\n * @returns {Boolean}\n */\nexport function isURL( string: string ): boolean {\n\treturn urlRegExp.test( string );\n}\n\n/**\n * TODO: Docs\n */\nexport function getBoxSidesValues( value: string = '' ): BoxSides {\n\tif ( value === '' ) {\n\t\treturn { top: undefined, right: undefined, bottom: undefined, left: undefined };\n\t}\n\n\tconst values = getShorthandValues( value );\n\n\tconst top = values[ 0 ];\n\tconst bottom = values[ 2 ] || top;\n\tconst right = values[ 1 ] || top;\n\tconst left = values[ 3 ] || right;\n\n\treturn { top, bottom, right, left };\n}\n\n/**\n * Default reducer for CSS properties that concerns edges of a box\n * [shorthand](https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties) notations:\n *\n *\t\tstylesProcessor.setReducer( 'padding', getBoxSidesValueReducer( 'padding' ) );\n *\n * @param {String} styleShorthand\n * @returns {Function}\n */\nexport function getBoxSidesValueReducer( styleShorthand: string ) {\n\treturn ( value: StyleValue ): Array<PropertyDescriptor> => {\n\t\tconst { top, right, bottom, left } = value as BoxSides;\n\n\t\tconst reduced: Array<PropertyDescriptor> = [];\n\n\t\tif ( ![ top, right, left, bottom ].every( value => !!value ) ) {\n\t\t\tif ( top ) {\n\t\t\t\treduced.push( [ styleShorthand + '-top', top ] );\n\t\t\t}\n\n\t\t\tif ( right ) {\n\t\t\t\treduced.push( [ styleShorthand + '-right', right ] );\n\t\t\t}\n\n\t\t\tif ( bottom ) {\n\t\t\t\treduced.push( [ styleShorthand + '-bottom', bottom ] );\n\t\t\t}\n\n\t\t\tif ( left ) {\n\t\t\t\treduced.push( [ styleShorthand + '-left', left ] );\n\t\t\t}\n\t\t} else {\n\t\t\treduced.push( [ styleShorthand, getBoxSidesShorthandValue( value as BoxSides ) ] );\n\t\t}\n\n\t\treturn reduced;\n\t};\n}\n\n/**\n * Returns a [shorthand](https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties) notation\n * of a CSS property value.\n *\n *\t\tgetBoxSidesShorthandValue( { top: '1px', right: '1px', bottom: '2px', left: '1px' } );\n *\t\t// will return '1px 1px 2px'\n *\n * @param {module:engine/view/stylesmap~BoxSides} styleShorthand\n * @returns {String}\n */\nexport function getBoxSidesShorthandValue( { top, right, bottom, left }: BoxSides ): string {\n\tconst out = [];\n\n\tif ( left !== right ) {\n\t\tout.push( top, right, bottom, left );\n\t} else if ( bottom !== top ) {\n\t\tout.push( top, right, bottom );\n\t} else if ( right !== top ) {\n\t\tout.push( top, right );\n\t} else {\n\t\tout.push( top );\n\t}\n\n\treturn out.join( ' ' );\n}\n\n/**\n * Creates a normalizer for a [shorthand](https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties) 1-to-4 value.\n *\n *\t\tstylesProcessor.setNormalizer( 'margin', getPositionShorthandNormalizer( 'margin' ) );\n *\n * @param {String} shorthand\n * @returns {Function}\n */\nexport function getPositionShorthandNormalizer( shorthand: string ) {\n\treturn ( value: string ): { path: string; value: BoxSides } => {\n\t\treturn {\n\t\t\tpath: shorthand,\n\t\t\tvalue: getBoxSidesValues( value )\n\t\t};\n\t};\n}\n\n/**\n * Parses parts of a 1-to-4 value notation - handles some CSS values with spaces (like RGB()).\n *\n *\t\tgetShorthandValues( 'red blue RGB(0, 0, 0)');\n *\t\t// will return [ 'red', 'blue', 'RGB(0, 0, 0)' ]\n *\n * @param {String} string\n * @returns {Array.<String>}\n */\nexport function getShorthandValues( string: string ): Array<string> {\n\treturn string\n\t\t.replace( /, /g, ',' ) // Exclude comma from spaces evaluation as values are separated by spaces.\n\t\t.split( ' ' )\n\t\t.map( string => string.replace( /,/g, ', ' ) ); // Restore original notation.\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/background\n */\n\nimport type { StylesProcessor, PropertyDescriptor, Styles, Normalizer, Reducer } from '../stylesmap';\nimport { getShorthandValues, isAttachment, isColor, isPosition, isRepeat, isURL } from './utils';\n\n/**\n * Adds a background CSS styles processing rules.\n *\n *\t\teditor.data.addStyleProcessorRules( addBackgroundRules );\n *\n * The normalized value is stored as:\n *\n *\t\tconst styles = {\n *\t\t\tbackground: {\n *\t\t\t\tcolor,\n *\t\t\t\trepeat,\n *\t\t\t\tposition,\n *\t\t\t\tattachment,\n *\t\t\t\timage\n *\t\t\t}\n *\t\t};\n *\n * **Note**: Currently only `'background-color'` longhand value is parsed besides `'background'` shorthand. The reducer also supports only\n * `'background-color'` value.\n *\n * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor\n */\nexport function addBackgroundRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'background', getBackgroundNormalizer() );\n\tstylesProcessor.setNormalizer( 'background-color', getBackgroundColorNormalizer() );\n\tstylesProcessor.setReducer( 'background', getBackgroundReducer() );\n\n\tstylesProcessor.setStyleRelation( 'background', [ 'background-color' ] );\n}\n\nfunction getBackgroundNormalizer(): Normalizer {\n\treturn value => {\n\t\tconst background: {\n\t\t\trepeat?: Array<string>;\n\t\t\tposition?: Array<string>;\n\t\t\tattachment?: string;\n\t\t\tcolor?: string;\n\t\t\timage?: string;\n\t\t} = {};\n\n\t\tconst parts = getShorthandValues( value );\n\n\t\tfor ( const part of parts ) {\n\t\t\tif ( isRepeat( part ) ) {\n\t\t\t\tbackground.repeat = background.repeat || [];\n\n\t\t\t\tbackground.repeat.push( part );\n\t\t\t} else if ( isPosition( part ) ) {\n\t\t\t\tbackground.position = background.position || [];\n\n\t\t\t\tbackground.position.push( part );\n\t\t\t} else if ( isAttachment( part ) ) {\n\t\t\t\tbackground.attachment = part;\n\t\t\t} else if ( isColor( part ) ) {\n\t\t\t\tbackground.color = part;\n\t\t\t} else if ( isURL( part ) ) {\n\t\t\t\tbackground.image = part;\n\t\t\t}\n\t\t}\n\n\t\treturn {\n\t\t\tpath: 'background',\n\t\t\tvalue: background\n\t\t};\n\t};\n}\n\nfunction getBackgroundColorNormalizer(): Normalizer {\n\treturn value => ( { path: 'background.color', value } );\n}\n\nfunction getBackgroundReducer(): Reducer {\n\treturn value => {\n\t\tconst ret: Array<PropertyDescriptor> = [];\n\n\t\tret.push( [ 'background-color', ( value as Styles ).color as string ] );\n\n\t\treturn ret;\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/border\n */\n\nimport type { BoxSides, Extractor, Normalizer, Reducer, StylesProcessor, Styles, StyleValue, PropertyDescriptor } from '../stylesmap';\nimport { getShorthandValues, getBoxSidesValueReducer, getBoxSidesValues, isLength, isLineStyle } from './utils';\n\n/**\n * Adds a border CSS styles processing rules.\n *\n *\t\teditor.data.addStyleProcessorRules( addBorderRules );\n *\n * This rules merges all [border](https://developer.mozilla.org/en-US/docs/Web/CSS/border) styles notation shorthands:\n *\n * - border\n * - border-top\n * - border-right\n * - border-bottom\n * - border-left\n * - border-color\n * - border-style\n * - border-width\n *\n * and all corresponding longhand forms (like `border-top-color`, `border-top-style`, etc).\n *\n * It does not handle other shorthands (like `border-radius` or `border-image`).\n *\n * The normalized model stores border values as:\n *\n *\t\tconst styles = {\n *\t\t\tborder: {\n *\t\t\t\tcolor: { top, right, bottom, left },\n *\t\t\t\tstyle: { top, right, bottom, left },\n *\t\t\t\twidth: { top, right, bottom, left },\n *\t\t\t}\n *\t\t};\n *\n * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor\n */\nexport function addBorderRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'border', getBorderNormalizer() );\n\n\t// Border-position shorthands.\n\tstylesProcessor.setNormalizer( 'border-top', getBorderPositionNormalizer( 'top' ) );\n\tstylesProcessor.setNormalizer( 'border-right', getBorderPositionNormalizer( 'right' ) );\n\tstylesProcessor.setNormalizer( 'border-bottom', getBorderPositionNormalizer( 'bottom' ) );\n\tstylesProcessor.setNormalizer( 'border-left', getBorderPositionNormalizer( 'left' ) );\n\n\t// Border-property shorthands.\n\tstylesProcessor.setNormalizer( 'border-color', getBorderPropertyNormalizer( 'color' ) );\n\tstylesProcessor.setNormalizer( 'border-width', getBorderPropertyNormalizer( 'width' ) );\n\tstylesProcessor.setNormalizer( 'border-style', getBorderPropertyNormalizer( 'style' ) );\n\n\t// Border longhands.\n\tstylesProcessor.setNormalizer( 'border-top-color', getBorderPropertyPositionNormalizer( 'color', 'top' ) );\n\tstylesProcessor.setNormalizer( 'border-top-style', getBorderPropertyPositionNormalizer( 'style', 'top' ) );\n\tstylesProcessor.setNormalizer( 'border-top-width', getBorderPropertyPositionNormalizer( 'width', 'top' ) );\n\n\tstylesProcessor.setNormalizer( 'border-right-color', getBorderPropertyPositionNormalizer( 'color', 'right' ) );\n\tstylesProcessor.setNormalizer( 'border-right-style', getBorderPropertyPositionNormalizer( 'style', 'right' ) );\n\tstylesProcessor.setNormalizer( 'border-right-width', getBorderPropertyPositionNormalizer( 'width', 'right' ) );\n\n\tstylesProcessor.setNormalizer( 'border-bottom-color', getBorderPropertyPositionNormalizer( 'color', 'bottom' ) );\n\tstylesProcessor.setNormalizer( 'border-bottom-style', getBorderPropertyPositionNormalizer( 'style', 'bottom' ) );\n\tstylesProcessor.setNormalizer( 'border-bottom-width', getBorderPropertyPositionNormalizer( 'width', 'bottom' ) );\n\n\tstylesProcessor.setNormalizer( 'border-left-color', getBorderPropertyPositionNormalizer( 'color', 'left' ) );\n\tstylesProcessor.setNormalizer( 'border-left-style', getBorderPropertyPositionNormalizer( 'style', 'left' ) );\n\tstylesProcessor.setNormalizer( 'border-left-width', getBorderPropertyPositionNormalizer( 'width', 'left' ) );\n\n\tstylesProcessor.setExtractor( 'border-top', getBorderPositionExtractor( 'top' ) );\n\tstylesProcessor.setExtractor( 'border-right', getBorderPositionExtractor( 'right' ) );\n\tstylesProcessor.setExtractor( 'border-bottom', getBorderPositionExtractor( 'bottom' ) );\n\tstylesProcessor.setExtractor( 'border-left', getBorderPositionExtractor( 'left' ) );\n\n\tstylesProcessor.setExtractor( 'border-top-color', 'border.color.top' );\n\tstylesProcessor.setExtractor( 'border-right-color', 'border.color.right' );\n\tstylesProcessor.setExtractor( 'border-bottom-color', 'border.color.bottom' );\n\tstylesProcessor.setExtractor( 'border-left-color', 'border.color.left' );\n\n\tstylesProcessor.setExtractor( 'border-top-width', 'border.width.top' );\n\tstylesProcessor.setExtractor( 'border-right-width', 'border.width.right' );\n\tstylesProcessor.setExtractor( 'border-bottom-width', 'border.width.bottom' );\n\tstylesProcessor.setExtractor( 'border-left-width', 'border.width.left' );\n\n\tstylesProcessor.setExtractor( 'border-top-style', 'border.style.top' );\n\tstylesProcessor.setExtractor( 'border-right-style', 'border.style.right' );\n\tstylesProcessor.setExtractor( 'border-bottom-style', 'border.style.bottom' );\n\tstylesProcessor.setExtractor( 'border-left-style', 'border.style.left' );\n\n\tstylesProcessor.setReducer( 'border-color', getBoxSidesValueReducer( 'border-color' ) );\n\tstylesProcessor.setReducer( 'border-style', getBoxSidesValueReducer( 'border-style' ) );\n\tstylesProcessor.setReducer( 'border-width', getBoxSidesValueReducer( 'border-width' ) );\n\tstylesProcessor.setReducer( 'border-top', getBorderPositionReducer( 'top' ) );\n\tstylesProcessor.setReducer( 'border-right', getBorderPositionReducer( 'right' ) );\n\tstylesProcessor.setReducer( 'border-bottom', getBorderPositionReducer( 'bottom' ) );\n\tstylesProcessor.setReducer( 'border-left', getBorderPositionReducer( 'left' ) );\n\tstylesProcessor.setReducer( 'border', getBorderReducer() );\n\n\tstylesProcessor.setStyleRelation( 'border', [\n\t\t'border-color', 'border-style', 'border-width',\n\t\t'border-top', 'border-right', 'border-bottom', 'border-left',\n\t\t'border-top-color', 'border-right-color', 'border-bottom-color', 'border-left-color',\n\t\t'border-top-style', 'border-right-style', 'border-bottom-style', 'border-left-style',\n\t\t'border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width'\n\t] );\n\n\tstylesProcessor.setStyleRelation( 'border-color', [\n\t\t'border-top-color', 'border-right-color', 'border-bottom-color', 'border-left-color'\n\t] );\n\tstylesProcessor.setStyleRelation( 'border-style', [\n\t\t'border-top-style', 'border-right-style', 'border-bottom-style', 'border-left-style'\n\t] );\n\tstylesProcessor.setStyleRelation( 'border-width', [\n\t\t'border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width'\n\t] );\n\n\tstylesProcessor.setStyleRelation( 'border-top', [ 'border-top-color', 'border-top-style', 'border-top-width' ] );\n\tstylesProcessor.setStyleRelation( 'border-right', [ 'border-right-color', 'border-right-style', 'border-right-width' ] );\n\tstylesProcessor.setStyleRelation( 'border-bottom', [ 'border-bottom-color', 'border-bottom-style', 'border-bottom-width' ] );\n\tstylesProcessor.setStyleRelation( 'border-left', [ 'border-left-color', 'border-left-style', 'border-left-width' ] );\n}\n\nfunction getBorderNormalizer(): Normalizer {\n\treturn value => {\n\t\tconst { color, style, width } = normalizeBorderShorthand( value );\n\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: {\n\t\t\t\tcolor: getBoxSidesValues( color ),\n\t\t\t\tstyle: getBoxSidesValues( style ),\n\t\t\t\twidth: getBoxSidesValues( width )\n\t\t\t}\n\t\t};\n\t};\n}\n\nfunction getBorderPositionNormalizer( side: string ): Normalizer {\n\treturn value => {\n\t\tconst { color, style, width } = normalizeBorderShorthand( value );\n\n\t\tconst border: Record<string, StyleValue> = {};\n\n\t\tif ( color !== undefined ) {\n\t\t\tborder.color = { [ side ]: color };\n\t\t}\n\n\t\tif ( style !== undefined ) {\n\t\t\tborder.style = { [ side ]: style };\n\t\t}\n\n\t\tif ( width !== undefined ) {\n\t\t\tborder.width = { [ side ]: width };\n\t\t}\n\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: border\n\t\t};\n\t};\n}\n\nfunction getBorderPropertyNormalizer( propertyName: string ): Normalizer {\n\treturn value => {\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: toBorderPropertyShorthand( value, propertyName )\n\t\t};\n\t};\n}\n\nfunction toBorderPropertyShorthand( value: string, property: string ): Record<string, BoxSides> {\n\treturn {\n\t\t[ property ]: getBoxSidesValues( value )\n\t};\n}\n\nfunction getBorderPropertyPositionNormalizer( property: string, side: keyof BoxSides ): Normalizer {\n\treturn value => {\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: {\n\t\t\t\t[ property ]: {\n\t\t\t\t\t[ side ]: value\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t};\n}\n\nfunction getBorderPositionExtractor( which: string ): Extractor {\n\treturn ( name, styles ) => {\n\t\tif ( styles.border ) {\n\t\t\treturn extractBorderPosition( styles.border, which );\n\t\t}\n\t};\n}\n\nfunction extractBorderPosition( border: any, which: string ) {\n\tconst value: StyleValue = {};\n\n\tif ( border.width && border.width[ which ] ) {\n\t\tvalue.width = border.width[ which ];\n\t}\n\n\tif ( border.style && border.style[ which ] ) {\n\t\tvalue.style = border.style[ which ];\n\t}\n\n\tif ( border.color && border.color[ which ] ) {\n\t\tvalue.color = border.color[ which ];\n\t}\n\n\treturn value;\n}\n\nfunction normalizeBorderShorthand( string: string ) {\n\tconst result: {\n\t\twidth?: string;\n\t\tstyle?: string;\n\t\tcolor?: string;\n\t} = {};\n\n\tconst parts = getShorthandValues( string );\n\n\tfor ( const part of parts ) {\n\t\tif ( isLength( part ) || /thin|medium|thick/.test( part ) ) {\n\t\t\tresult.width = part;\n\t\t} else if ( isLineStyle( part ) ) {\n\t\t\tresult.style = part;\n\t\t} else {\n\t\t\tresult.color = part;\n\t\t}\n\t}\n\n\treturn result;\n}\n\n// The border reducer factory.\n//\n// It tries to produce the most optimal output for the specified styles.\n//\n// For a border style:\n//\n//      style: {top: \"solid\", bottom: \"solid\", right: \"solid\", left: \"solid\"}\n//\n// It will produce: `border-style: solid`.\n// For a border style and color:\n//\n//      color: {top: \"#ff0\", bottom: \"#ff0\", right: \"#ff0\", left: \"#ff0\"}\n//      style: {top: \"solid\", bottom: \"solid\", right: \"solid\", left: \"solid\"}\n//\n// It will produce: `border-color: #ff0; border-style: solid`.\n// If all border parameters are specified:\n//\n//      color: {top: \"#ff0\", bottom: \"#ff0\", right: \"#ff0\", left: \"#ff0\"}\n//      style: {top: \"solid\", bottom: \"solid\", right: \"solid\", left: \"solid\"}\n//      width: {top: \"2px\", bottom: \"2px\", right: \"2px\", left: \"2px\"}\n//\n// It will combine everything into a single property: `border: 2px solid #ff0`.\n//\n// The definitions are merged only if all border selectors have the same values.\n//\n// @returns {Function}\nfunction getBorderReducer(): Reducer {\n\treturn value => {\n\t\tconst topStyles = extractBorderPosition( value, 'top' );\n\t\tconst rightStyles = extractBorderPosition( value, 'right' );\n\t\tconst bottomStyles = extractBorderPosition( value, 'bottom' );\n\t\tconst leftStyles = extractBorderPosition( value, 'left' );\n\n\t\tconst borderStyles = [ topStyles, rightStyles, bottomStyles, leftStyles ];\n\n\t\tconst borderStylesByType = {\n\t\t\twidth: getReducedStyleValueForType( borderStyles, 'width' ),\n\t\t\tstyle: getReducedStyleValueForType( borderStyles, 'style' ),\n\t\t\tcolor: getReducedStyleValueForType( borderStyles, 'color' )\n\t\t};\n\n\t\t// Try reducing to a single `border:` property.\n\t\tconst reducedBorderStyle = reduceBorderPosition( borderStylesByType, 'all' );\n\n\t\tif ( reducedBorderStyle.length ) {\n\t\t\treturn reducedBorderStyle;\n\t\t}\n\n\t\t// Try reducing to `border-style:`, `border-width:`, `border-color:` properties.\n\t\tconst reducedStyleTypes = Object.entries( borderStylesByType ).reduce( ( reducedStyleTypes, [ type, value ] ) => {\n\t\t\tif ( value ) {\n\t\t\t\treducedStyleTypes.push( [ `border-${ type }`, value ] );\n\n\t\t\t\t// Remove it from the full set to not include it in the most specific properties later.\n\t\t\t\tborderStyles.forEach( style => delete style[ type ] );\n\t\t\t}\n\n\t\t\treturn reducedStyleTypes;\n\t\t}, [] as Array<PropertyDescriptor> );\n\n\t\t// The reduced properties (by type) and all that remains that could not be reduced.\n\t\treturn [\n\t\t\t...reducedStyleTypes,\n\t\t\t...reduceBorderPosition( topStyles, 'top' ),\n\t\t\t...reduceBorderPosition( rightStyles, 'right' ),\n\t\t\t...reduceBorderPosition( bottomStyles, 'bottom' ),\n\t\t\t...reduceBorderPosition( leftStyles, 'left' )\n\t\t];\n\t};\n\n\t// @param {Array.<Object>} styles The array of objects with `style`, `color`, `width` properties.\n\t// @param {'width'|'style'|'color'} type\n\tfunction getReducedStyleValueForType( styles: Array<Styles>, type: 'width' | 'style' | 'color' ) {\n\t\treturn styles\n\t\t\t.map( style => style[ type ] as any )\n\t\t\t.reduce( ( result, style ) => result == style ? result : null );\n\t}\n}\n\nfunction getBorderPositionReducer( which: keyof BoxSides | 'all' ): Reducer {\n\treturn value => reduceBorderPosition( value, which );\n}\n\n// Returns an array with reduced border styles depending on the specified values.\n//\n// If all border properties (width, style, color) are specified, the returned selector will be\n// merged into a group: `border-*: [width] [style] [color]`.\n//\n// Otherwise, the specific definitions will be returned: `border-(width|style|color)-*: [value]`.\n//\n// @param {Object|null} value Styles if defined.\n// @param {'top'|'right'|'bottom'|'left'|'all'} which The border position.\n// @returns {Array}\nfunction reduceBorderPosition( value: any, which: keyof BoxSides | 'all' ): Array<PropertyDescriptor> {\n\tconst borderTypes = [];\n\n\tif ( value && ( value.width ) ) {\n\t\tborderTypes.push( 'width' );\n\t}\n\n\tif ( value && ( value.style ) ) {\n\t\tborderTypes.push( 'style' );\n\t}\n\n\tif ( value && ( value.color ) ) {\n\t\tborderTypes.push( 'color' );\n\t}\n\n\tif ( borderTypes.length == 3 ) {\n\t\tconst borderValue = borderTypes.map( item => value[ item ] ).join( ' ' );\n\n\t\treturn [\n\t\t\twhich == 'all' ? [ 'border', borderValue ] : [ `border-${ which }`, borderValue ]\n\t\t];\n\t}\n\n\t// We are unable to reduce to a single `border:` property.\n\tif ( which == 'all' ) {\n\t\treturn [];\n\t}\n\n\treturn borderTypes.map( type => {\n\t\treturn [ `border-${ which }-${ type }`, value[ type ] as string ];\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/margin\n */\n\nimport type { StylesProcessor } from '../stylesmap';\nimport { getPositionShorthandNormalizer, getBoxSidesValueReducer } from './utils';\n\n/**\n * Adds a margin CSS styles processing rules.\n *\n *\t\teditor.data.addStyleProcessorRules( addMarginRules );\n *\n * The normalized value is stored as:\n *\n *\t\tconst styles = {\n *\t\t\tmargin: {\n *\t\t\t\ttop,\n *\t\t\t\tright,\n *\t\t\t\tbottom,\n *\t\t\t\tleft\n *\t\t\t}\n *\t\t};\n *\n * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor\n */\nexport function addMarginRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'margin', getPositionShorthandNormalizer( 'margin' ) );\n\n\tstylesProcessor.setNormalizer( 'margin-top', value => ( { path: 'margin.top', value } ) );\n\tstylesProcessor.setNormalizer( 'margin-right', value => ( { path: 'margin.right', value } ) );\n\tstylesProcessor.setNormalizer( 'margin-bottom', value => ( { path: 'margin.bottom', value } ) );\n\tstylesProcessor.setNormalizer( 'margin-left', value => ( { path: 'margin.left', value } ) );\n\n\tstylesProcessor.setReducer( 'margin', getBoxSidesValueReducer( 'margin' ) );\n\n\tstylesProcessor.setStyleRelation( 'margin', [ 'margin-top', 'margin-right', 'margin-bottom', 'margin-left' ] );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/padding\n */\n\nimport type { StylesProcessor } from '../stylesmap';\nimport { getPositionShorthandNormalizer, getBoxSidesValueReducer } from './utils';\n\n/**\n * Adds a margin CSS styles processing rules.\n *\n *\t\teditor.data.addStyleProcessorRules( addPaddingRules );\n *\n * The normalized value is stored as:\n *\n *\t\tconst styles = {\n *\t\t\tpadding: {\n *\t\t\t\ttop,\n *\t\t\t\tright,\n *\t\t\t\tbottom,\n *\t\t\t\tleft\n *\t\t\t}\n *\t\t};\n *\n * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor\n */\nexport function addPaddingRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'padding', getPositionShorthandNormalizer( 'padding' ) );\n\tstylesProcessor.setNormalizer( 'padding-top', value => ( { path: 'padding.top', value } ) );\n\tstylesProcessor.setNormalizer( 'padding-right', value => ( { path: 'padding.right', value } ) );\n\tstylesProcessor.setNormalizer( 'padding-bottom', value => ( { path: 'padding.bottom', value } ) );\n\tstylesProcessor.setNormalizer( 'padding-left', value => ( { path: 'padding.left', value } ) );\n\n\tstylesProcessor.setReducer( 'padding', getBoxSidesValueReducer( 'padding' ) );\n\n\tstylesProcessor.setStyleRelation( 'padding', [ 'padding-top', 'padding-right', 'padding-bottom', 'padding-left' ] );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/commandcollection\n */\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\nimport type Command from './command';\n\n/**\n * Collection of commands. Its instance is available in {@link module:core/editor/editor~Editor#commands `editor.commands`}.\n */\nexport default class CommandCollection implements Iterable<[ string, Command ]> {\n\tprivate _commands: Map<string, Command>;\n\n\t/**\n\t * Creates collection instance.\n\t */\n\tconstructor() {\n\t\t/**\n\t\t * Command map.\n\t\t *\n\t\t * @private\n\t\t * @member {Map}\n\t\t */\n\t\tthis._commands = new Map();\n\t}\n\n\t/**\n\t * Registers a new command.\n\t *\n\t * @param {String} commandName The name of the command.\n\t * @param {module:core/command~Command} command\n\t */\n\tpublic add<TName extends string>(\n\t\tcommandName: TName,\n\t\tcommand: CommandsMap[ TName ]\n\t): void {\n\t\tthis._commands.set( commandName, command );\n\t}\n\n\t/**\n\t * Retrieves a command from the collection.\n\t *\n\t * @param {String} commandName The name of the command.\n\t * @returns {module:core/command~Command}\n\t */\n\tpublic get<TName extends string>( commandName: TName ): CommandsMap[ TName ] | undefined {\n\t\treturn this._commands.get( commandName );\n\t}\n\n\t/**\n\t * Executes a command.\n\t *\n\t * @param {String} commandName The name of the command.\n\t * @param {*} [...commandParams] Command parameters.\n\t * @returns {*} The value returned by the {@link module:core/command~Command#execute `command.execute()`}.\n\t */\n\tpublic execute<TName extends string>(\n\t\tcommandName: TName,\n\t\t...args: Parameters<CommandsMap[ TName ][ 'execute' ]>\n\t): ReturnType<CommandsMap[ TName ][ 'execute' ]> {\n\t\tconst command = this.get( commandName );\n\n\t\tif ( !command ) {\n\t\t\t/**\n\t\t\t * Command does not exist.\n\t\t\t *\n\t\t\t * @error commandcollection-command-not-found\n\t\t\t * @param {String} commandName Name of the command.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'commandcollection-command-not-found', this, { commandName } );\n\t\t}\n\n\t\treturn command.execute( ...args ) as any;\n\t}\n\n\t/**\n\t * Returns iterator of command names.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic* names(): IterableIterator<string> {\n\t\tyield* this._commands.keys();\n\t}\n\n\t/**\n\t * Returns iterator of command instances.\n\t *\n\t * @returns {Iterable.<module:core/command~Command>}\n\t */\n\tpublic* commands(): IterableIterator<Command> {\n\t\tyield* this._commands.values();\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Returns `[ commandName, commandInstance ]` pairs.\n\t *\n\t * @returns {Iterator.<Array>}\n\t */\n\tpublic [ Symbol.iterator ](): Iterator<[ string, Command ]> {\n\t\treturn this._commands[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Destroys all collection commands.\n\t */\n\tpublic destroy(): void {\n\t\tfor ( const command of this.commands() ) {\n\t\t\tcommand.destroy();\n\t\t}\n\t}\n}\n\nexport interface CommandsMap {\n\t[ name: string ]: Command;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editingkeystrokehandler\n */\n\nimport { KeystrokeHandler, type PriorityString } from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\n\n/**\n * A keystroke handler for editor editing. Its instance is available\n * in {@link module:core/editor/editor~Editor#keystrokes} so plugins\n * can register their keystrokes.\n *\n * E.g. an undo plugin would do this:\n *\n *\t\teditor.keystrokes.set( 'Ctrl+Z', 'undo' );\n *\t\teditor.keystrokes.set( 'Ctrl+Shift+Z', 'redo' );\n *\t\teditor.keystrokes.set( 'Ctrl+Y', 'redo' );\n *\n * @extends module:utils/keystrokehandler~KeystrokeHandler\n */\nexport default class EditingKeystrokeHandler extends KeystrokeHandler {\n\tpublic readonly editor: Editor;\n\n\t/**\n\t * Creates an instance of the keystroke handler.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The editor instance.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/editor/editor~Editor}\n\t\t */\n\t\tthis.editor = editor;\n\t}\n\n\t/**\n\t * Registers a handler for the specified keystroke.\n\t *\n\t * The handler can be specified as a command name or a callback.\n\t *\n\t * @param {String|Array.<String|Number>} keystroke Keystroke defined in a format accepted by\n\t * the {@link module:utils/keyboard~parseKeystroke} function.\n\t * @param {Function|String} callback If a string is passed, then the keystroke will\n\t * {@link module:core/editor/editor~Editor#execute execute a command}.\n\t * If a function, then it will be called with the\n\t * {@link module:engine/view/observer/keyobserver~KeyEventData key event data} object and\n\t * a `cancel()` helper to both `preventDefault()` and `stopPropagation()` of the event.\n\t * @param {Object} [options={}] Additional options.\n\t * @param {module:utils/priorities~PriorityString|Number} [options.priority='normal'] The priority of the keystroke\n\t * callback. The higher the priority value the sooner the callback will be executed. Keystrokes having the same priority\n\t * are called in the order they were added.\n\t */\n\tpublic override set(\n\t\tkeystroke: string | Array<string | number>,\n\t\tcallback: string | ( ( ev: KeyboardEvent, cancel: () => void ) => void ),\n\t\toptions: { readonly priority?: PriorityString } = {}\n\t): void {\n\t\tif ( typeof callback == 'string' ) {\n\t\t\tconst commandName = callback;\n\n\t\t\tcallback = ( evtData, cancel ) => {\n\t\t\t\tthis.editor.execute( commandName );\n\t\t\t\tcancel();\n\t\t\t};\n\t\t}\n\n\t\tsuper.set( keystroke, callback, options );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editor/editor\n */\n\nimport {\n\tConfig,\n\tCKEditorError,\n\tObservableMixin,\n\ttype Locale,\n\ttype LocaleTranslate,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tConversion,\n\tDataController,\n\tEditingController,\n\tModel,\n\tStylesProcessor\n} from '@ckeditor/ckeditor5-engine';\n\nimport Context from '../context';\nimport PluginCollection from '../plugincollection';\nimport CommandCollection, { type CommandsMap } from '../commandcollection';\nimport EditingKeystrokeHandler from '../editingkeystrokehandler';\n\nimport type { LoadedPlugins, PluginConstructor } from '../plugin';\nimport type EditorUI from './editorui';\nimport type { EditorConfig } from './editorconfig';\n\n/**\n * The class representing a basic, generic editor.\n *\n * Check out the list of its subclasses to learn about specific editor implementations.\n *\n * All editor implementations (like {@link module:editor-classic/classiceditor~ClassicEditor} or\n * {@link module:editor-inline/inlineeditor~InlineEditor}) should extend this class. They can add their\n * own methods and properties.\n *\n * When you are implementing a plugin, this editor represents the API\n * which your plugin can expect to get when using its {@link module:core/plugin~Plugin#editor} property.\n *\n * This API should be sufficient in order to implement the \"editing\" part of your feature\n * (schema definition, conversion, commands, keystrokes, etc.).\n * It does not define the editor UI, which is available only if\n * the specific editor implements also the {@link module:core/editor/editorwithui~EditorWithUI} interface\n * (as most editor implementations do).\n *\n * @abstract\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default abstract class Editor extends ObservableMixin() {\n\tpublic readonly commands: CommandCollection;\n\tpublic readonly config: Config<EditorConfig>;\n\tpublic readonly conversion: Conversion;\n\tpublic readonly data: DataController;\n\tpublic readonly editing: EditingController;\n\tpublic readonly locale: Locale;\n\tpublic readonly model: Model;\n\tpublic readonly plugins: PluginCollection<Editor>;\n\tpublic readonly keystrokes: EditingKeystrokeHandler;\n\tpublic readonly t: LocaleTranslate;\n\n\tpublic readonly id!: string;\n\n\tpublic declare state: 'initializing' | 'ready' | 'destroyed';\n\n\tpublic static defaultConfig?: EditorConfig;\n\tpublic static builtinPlugins?: Array<PluginConstructor<Editor>>;\n\n\t/**\n\t * The editor UI instance.\n\t */\n\tpublic abstract get ui(): EditorUI;\n\n\tprotected readonly _context: Context;\n\tprotected readonly _readOnlyLocks: Set<symbol | string>;\n\n\t/**\n\t * Creates a new instance of the editor class.\n\t *\n\t * Usually, not to be used directly. See the static {@link module:core/editor/editor~Editor.create `create()`} method.\n\t *\n\t * @param {Object} [config={}] The editor configuration.\n\t */\n\tconstructor( config: EditorConfig = {} ) {\n\t\tsuper();\n\n\t\tconst constructor = this.constructor as typeof Editor;\n\n\t\t// Prefer the language passed as the argument to the constructor instead of the constructor's `defaultConfig`, if both are set.\n\t\tconst language = config.language || ( constructor.defaultConfig && constructor.defaultConfig.language );\n\n\t\t/**\n\t\t * The editor context.\n\t\t * When it is not provided through the configuration, the editor creates it.\n\t\t *\n\t\t * @protected\n\t\t * @type {module:core/context~Context}\n\t\t */\n\t\tthis._context = config.context || new Context( { language } );\n\t\tthis._context._addEditor( this, !config.context );\n\n\t\t// Clone the plugins to make sure that the plugin array will not be shared\n\t\t// between editors and make the watchdog feature work correctly.\n\t\tconst availablePlugins = Array.from( constructor.builtinPlugins || [] );\n\n\t\t/**\n\t\t * Stores all configurations specific to this editor instance.\n\t\t *\n\t\t *\t\teditor.config.get( 'image.toolbar' );\n\t\t *\t\t// -> [ 'imageStyle:block', 'imageStyle:side', '|', 'toggleImageCaption', 'imageTextAlternative' ]\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/config~Config}\n\t\t */\n\t\tthis.config = new Config<EditorConfig>( config, constructor.defaultConfig );\n\t\tthis.config.define( 'plugins', availablePlugins );\n\t\tthis.config.define( this._context._getEditorConfig() );\n\n\t\t/**\n\t\t * The plugins loaded and in use by this editor instance.\n\t\t *\n\t\t *\t\teditor.plugins.get( 'ClipboardPipeline' ); // -> An instance of the clipboard pipeline plugin.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/plugincollection~PluginCollection}\n\t\t */\n\t\tthis.plugins = new PluginCollection<Editor>( this, availablePlugins, this._context.plugins );\n\n\t\t/**\n\t\t * The locale instance.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:utils/locale~Locale}\n\t\t */\n\t\tthis.locale = this._context.locale;\n\n\t\t/**\n\t\t * Shorthand for {@link module:utils/locale~Locale#t}.\n\t\t *\n\t\t * @see module:utils/locale~Locale#t\n\t\t * @method #t\n\t\t */\n\t\tthis.t = this.locale.t;\n\n\t\t/**\n\t\t * A set of lock IDs for the {@link #isReadOnly} getter.\n\t\t *\n\t\t * @private\n\t\t * @type {Set.<String|Symbol>}\n\t\t */\n\t\tthis._readOnlyLocks = new Set();\n\n\t\t/**\n\t\t * Commands registered to the editor.\n\t\t *\n\t\t * Use the shorthand {@link #execute `editor.execute()`} method to execute commands:\n\t\t *\n\t\t *\t\t// Execute the bold command:\n\t\t *\t\teditor.execute( 'bold' );\n\t\t *\n\t\t *\t\t// Check the state of the bold command:\n\t\t *\t\teditor.commands.get( 'bold' ).value;\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/commandcollection~CommandCollection}\n\t\t */\n\t\tthis.commands = new CommandCollection();\n\n\t\t/**\n\t\t * Indicates the editor life-cycle state.\n\t\t *\n\t\t * The editor is in one of the following states:\n\t\t *\n\t\t * * `initializing` &ndash; During the editor initialization (before\n\t\t * {@link module:core/editor/editor~Editor.create `Editor.create()`}) finished its job.\n\t\t * * `ready` &ndash; After the promise returned by the {@link module:core/editor/editor~Editor.create `Editor.create()`}\n\t\t * method is resolved.\n\t\t * * `destroyed` &ndash; Once the {@link #destroy `editor.destroy()`} method was called.\n\t\t *\n\t\t * @observable\n\t\t * @member {'initializing'|'ready'|'destroyed'} #state\n\t\t */\n\t\tthis.set( 'state', 'initializing' );\n\t\tthis.once<EditorReadyEvent>( 'ready', () => ( this.state = 'ready' ), { priority: 'high' } );\n\t\tthis.once<EditorDestroyEvent>( 'destroy', () => ( this.state = 'destroyed' ), { priority: 'high' } );\n\n\t\t/**\n\t\t * The editor's model.\n\t\t *\n\t\t * The central point of the editor's abstract data model.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/model~Model}\n\t\t */\n\t\tthis.model = new Model();\n\n\t\tconst stylesProcessor = new StylesProcessor();\n\n\t\t/**\n\t\t * The {@link module:engine/controller/datacontroller~DataController data controller}.\n\t\t * Used e.g. for setting and retrieving the editor data.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/controller/datacontroller~DataController}\n\t\t */\n\t\tthis.data = new DataController( this.model, stylesProcessor );\n\n\t\t/**\n\t\t * The {@link module:engine/controller/editingcontroller~EditingController editing controller}.\n\t\t * Controls user input and rendering the content for editing.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/controller/editingcontroller~EditingController}\n\t\t */\n\t\tthis.editing = new EditingController( this.model, stylesProcessor );\n\t\tthis.editing.view.document.bind( 'isReadOnly' ).to( this );\n\n\t\t/**\n\t\t * Conversion manager through which you can register model-to-view and view-to-model converters.\n\t\t *\n\t\t * See the {@link module:engine/conversion/conversion~Conversion} documentation to learn how to add converters.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/conversion/conversion~Conversion}\n\t\t */\n\t\tthis.conversion = new Conversion( [ this.editing.downcastDispatcher, this.data.downcastDispatcher ], this.data.upcastDispatcher );\n\t\tthis.conversion.addAlias( 'dataDowncast', this.data.downcastDispatcher );\n\t\tthis.conversion.addAlias( 'editingDowncast', this.editing.downcastDispatcher );\n\n\t\t/**\n\t\t * An instance of the {@link module:core/editingkeystrokehandler~EditingKeystrokeHandler}.\n\t\t *\n\t\t * It allows setting simple keystrokes:\n\t\t *\n\t\t *\t\t// Execute the bold command on Ctrl+E:\n\t\t *\t\teditor.keystrokes.set( 'Ctrl+E', 'bold' );\n\t\t *\n\t\t *\t\t// Execute your own callback:\n\t\t *\t\teditor.keystrokes.set( 'Ctrl+E', ( data, cancel ) => {\n\t\t *\t\t\tconsole.log( data.keyCode );\n\t\t *\n\t\t *\t\t\t// Prevent the default (native) action and stop the underlying keydown event\n\t\t *\t\t\t// so no other editor feature will interfere.\n\t\t *\t\t\tcancel();\n\t\t *\t\t} );\n\t\t *\n\t\t * Note: Certain typing-oriented keystrokes (like <kbd>Backspace</kbd> or <kbd>Enter</kbd>) are handled\n\t\t * by a low-level mechanism and trying to listen to them via the keystroke handler will not work reliably.\n\t\t * To handle these specific keystrokes, see the events fired by the\n\t\t * {@link module:engine/view/document~Document editing view document} (`editor.editing.view.document`).\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/editingkeystrokehandler~EditingKeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new EditingKeystrokeHandler( this );\n\t\tthis.keystrokes.listenTo( this.editing.view.document );\n\t}\n\n\t/**\n\t * Defines whether the editor is in the read-only mode.\n\t *\n\t * In read-only mode the editor {@link #commands commands} are disabled so it is not possible\n\t * to modify the document by using them. Also, the editable element(s) become non-editable.\n\t *\n\t * In order to make the editor read-only, you need to call the {@link #enableReadOnlyMode} method:\n\t *\n\t *\t\teditor.enableReadOnlyMode( 'feature-id' );\n\t *\n     * Later, to turn off the read-only mode, call {@link #disableReadOnlyMode}:\n\t *\n\t * \t\teditor.disableReadOnlyMode( 'feature-id' );\n\t *\n\t * @readonly\n\t * @observable\n\t * @member {Boolean} #isReadOnly\n\t */\n\tpublic get isReadOnly(): boolean {\n\t\treturn this._readOnlyLocks.size > 0;\n\t}\n\n\tpublic set isReadOnly( value: boolean ) {\n\t\t/**\n\t\t * The {@link #isReadOnly Editor#isReadOnly} property is read-only since version `34.0.0` and can be set only using\n\t\t * {@link #enableReadOnlyMode `Editor#enableReadOnlyMode( lockId )`} and\n\t\t * {@link #disableReadOnlyMode `Editor#disableReadOnlyMode( lockId )`}.\n\t\t *\n\t\t * Usage before version `34.0.0`:\n\t\t *\n\t\t *\t\teditor.isReadOnly = true;\n\t\t * \t\teditor.isReadOnly = false;\n\t\t *\n\t\t * Usage since version `34.0.0`:\n\t\t *\n\t\t *\t\teditor.enableReadOnlyMode( 'my-feature-id' );\n\t\t * \t\teditor.disableReadOnlyMode( 'my-feature-id' );\n\t\t *\n\t\t * @error editor-isreadonly-has-no-setter\n\t\t */\n\t\tthrow new CKEditorError( 'editor-isreadonly-has-no-setter' );\n\t}\n\n\t/**\n\t * Turns on the read-only mode in the editor.\n\t *\n\t * Editor can be switched to or out of the read-only mode by many features, under various circumstances. The editor supports locking\n\t * mechanism for the read-only mode. It enables easy control over the read-only mode when many features wants to turn it on or off at\n\t * the same time, without conflicting with each other. It guarantees that you will not make the editor editable accidentally (which\n\t * could lead to errors).\n\t *\n\t * Each read-only mode request is identified by a unique id (also called \"lock\"). If multiple plugins requested to turn on the\n\t * read-only mode, then, the editor will become editable only after all these plugins turn the read-only mode off (using the same ids).\n\t *\n\t * Note, that you cannot force the editor to disable the read-only mode if other plugins set it.\n\t *\n\t * After the first `enableReadOnlyMode()` call, the {@link #isReadOnly `isReadOnly` property} will be set to `true`:\n\t *\n\t *\t\teditor.isReadOnly; // `false`.\n\t * \t\teditor.enableReadOnlyMode( 'my-feature-id' );\n\t * \t\teditor.isReadOnly; // `true`.\n\t *\n\t * You can turn off the read-only mode (\"clear the lock\") using the {@link #disableReadOnlyMode `disableReadOnlyMode()`} method:\n\t *\n\t * \t\teditor.enableReadOnlyMode( 'my-feature-id' );\n\t * \t\t// ...\n\t * \t\teditor.disableReadOnlyMode( 'my-feature-id' );\n\t * \t\teditor.isReadOnly; // `false`.\n\t *\n\t * All \"locks\" need to be removed to enable editing:\n\t *\n\t * \t\teditor.enableReadOnlyMode( 'my-feature-id' );\n\t * \t\teditor.enableReadOnlyMode( 'my-other-feature-id' );\n\t * \t\t// ...\n\t * \t\teditor.disableReadOnlyMode( 'my-feature-id' );\n\t * \t\teditor.isReadOnly; // `true`.\n\t * \t\teditor.disableReadOnlyMode( 'my-other-feature-id' );\n\t * \t\teditor.isReadOnly; // `false`.\n\t *\n\t * @param {String|Symbol} lockId A unique ID for setting the editor to the read-only state.\n\t */\n\tpublic enableReadOnlyMode( lockId: string | symbol ): void {\n\t\tif ( typeof lockId !== 'string' && typeof lockId !== 'symbol' ) {\n\t\t\t/**\n\t\t\t * The lock ID is missing or it is not a string or symbol.\n\t\t\t *\n\t\t\t * @error editor-read-only-lock-id-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'editor-read-only-lock-id-invalid', null, { lockId } );\n\t\t}\n\n\t\tif ( this._readOnlyLocks.has( lockId ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._readOnlyLocks.add( lockId );\n\n\t\tif ( this._readOnlyLocks.size === 1 ) {\n\t\t\t// Manually fire the `change:isReadOnly` event as only getter is provided.\n\t\t\tthis.fire<ObservableChangeEvent<boolean>>( 'change:isReadOnly', 'isReadOnly', true, false );\n\t\t}\n\t}\n\n\t/**\n\t * Removes the read-only lock from the editor with given lock ID.\n\t *\n\t * When no lock is present on the editor anymore, then the {@link #isReadOnly `isReadOnly` property} will be set to `false`.\n\t *\n\t * @param {String|Symbol} lockId The lock ID for setting the editor to the read-only state.\n\t */\n\tpublic disableReadOnlyMode( lockId: string | symbol ): void {\n\t\tif ( typeof lockId !== 'string' && typeof lockId !== 'symbol' ) {\n\t\t\tthrow new CKEditorError( 'editor-read-only-lock-id-invalid', null, { lockId } );\n\t\t}\n\n\t\tif ( !this._readOnlyLocks.has( lockId ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._readOnlyLocks.delete( lockId );\n\n\t\tif ( this._readOnlyLocks.size === 0 ) {\n\t\t\t// Manually fire the `change:isReadOnly` event as only getter is provided.\n\t\t\tthis.fire<ObservableChangeEvent<boolean>>( 'change:isReadOnly', 'isReadOnly', false, true );\n\t\t}\n\t}\n\n\t/**\n\t * Loads and initializes plugins specified in the configuration.\n\t *\n\t * @returns {Promise.<module:core/plugin~LoadedPlugins>} A promise which resolves\n\t * once the initialization is completed, providing an array of loaded plugins.\n\t */\n\tpublic initPlugins(): Promise<LoadedPlugins> {\n\t\tconst config = this.config;\n\t\tconst plugins = config.get( 'plugins' )!;\n\t\tconst removePlugins = config.get( 'removePlugins' ) || [];\n\t\tconst extraPlugins = config.get( 'extraPlugins' ) || [];\n\t\tconst substitutePlugins = config.get( 'substitutePlugins' ) || [];\n\n\t\treturn this.plugins.init( plugins.concat( extraPlugins ), removePlugins, substitutePlugins );\n\t}\n\n\t/**\n\t * Destroys the editor instance, releasing all resources used by it.\n\t *\n\t * **Note** The editor cannot be destroyed during the initialization phase so if it is called\n\t * while the editor {@link #state is being initialized}, it will wait for the editor initialization before destroying it.\n\t *\n\t * @fires destroy\n\t * @returns {Promise} A promise that resolves once the editor instance is fully destroyed.\n\t */\n\tpublic destroy(): Promise<unknown> {\n\t\tlet readyPromise: Promise<unknown> = Promise.resolve();\n\n\t\tif ( this.state == 'initializing' ) {\n\t\t\treadyPromise = new Promise( resolve => this.once<EditorReadyEvent>( 'ready', resolve ) );\n\t\t}\n\n\t\treturn readyPromise\n\t\t\t.then( () => {\n\t\t\t\tthis.fire<EditorDestroyEvent>( 'destroy' );\n\t\t\t\tthis.stopListening();\n\t\t\t\tthis.commands.destroy();\n\t\t\t} )\n\t\t\t.then( () => this.plugins.destroy() )\n\t\t\t.then( () => {\n\t\t\t\tthis.model.destroy();\n\t\t\t\tthis.data.destroy();\n\t\t\t\tthis.editing.destroy();\n\t\t\t\tthis.keystrokes.destroy();\n\t\t\t} )\n\t\t\t// Remove the editor from the context.\n\t\t\t// When the context was created by this editor, the context will be destroyed.\n\t\t\t.then( () => this._context._removeEditor( this ) );\n\t}\n\n\t/**\n\t * Executes the specified command with given parameters.\n\t *\n\t * Shorthand for:\n\t *\n\t *\t\teditor.commands.get( commandName ).execute( ... );\n\t *\n\t * @param {String} commandName The name of the command to execute.\n\t * @param {*} [...commandParams] Command parameters.\n\t * @returns {*} The value returned by the {@link module:core/commandcollection~CommandCollection#execute `commands.execute()`}.\n\t */\n\tpublic execute<TName extends string>(\n\t\tcommandName: TName,\n\t\t...args: Parameters<CommandsMap[ TName ][ 'execute' ]>\n\t): ReturnType<CommandsMap[ TName ][ 'execute' ]> {\n\t\ttry {\n\t\t\treturn this.commands.execute( commandName, ...args );\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the editor.\n\t *\n\t * **Note** To explicitly focus the editing area of the editor, use the\n\t * {@link module:engine/view/view~View#focus `editor.editing.view.focus()`} method of the editing view.\n\t *\n\t * Check out the {@glink framework/guides/deep-dive/ui/focus-tracking#focus-in-the-editor-ui Focus in the editor UI} section\n\t * of the {@glink framework/guides/deep-dive/ui/focus-tracking Deep dive into focus tracking} guide to learn more.\n\t */\n\tpublic focus(): void {\n\t\tthis.editing.view.focus();\n\t}\n\n\t/**\n\t * Creates and initializes a new editor instance.\n\t *\n\t * This is an abstract method. Every editor type needs to implement its own initialization logic.\n\t *\n\t * See the `create()` methods of the existing editor types to learn how to use them:\n\t *\n\t * * {@link module:editor-classic/classiceditor~ClassicEditor.create `ClassicEditor.create()`}\n\t * * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`}\n\t * * {@link module:editor-decoupled/decouplededitor~DecoupledEditor.create `DecoupledEditor.create()`}\n\t * * {@link module:editor-inline/inlineeditor~InlineEditor.create `InlineEditor.create()`}\n\t *\n\t * @abstract\n\t * @method module:core/editor/editor~Editor.create\n\t */\n}\n\n/**\n * Fired when the {@link module:engine/controller/datacontroller~DataController#event:ready data} and all additional\n * editor components are ready.\n *\n * Note: This event is most useful for plugin developers. When integrating the editor with your website or\n * application, you do not have to listen to `editor#ready` because when the promise returned by the static\n * {@link module:core/editor/editor~Editor.create `Editor.create()`} event is resolved, the editor is already ready.\n * In fact, since the first moment when the editor instance is available to you is inside `then()`'s callback,\n * you cannot even add a listener to the `editor#ready` event.\n *\n * See also the {@link #state `editor.state`} property.\n *\n * @event ready\n */\n\nexport type EditorReadyEvent = {\n\tname: 'ready';\n\targs: [];\n};\n\n/**\n * Fired when this editor instance is destroyed. The editor at this point is not usable and this event should be used to\n * perform the clean-up in any plugin.\n *\n *\n * See also the {@link #state `editor.state`} property.\n *\n * @event destroy\n */\n\nexport type EditorDestroyEvent = {\n\tname: 'destroy';\n\targs: [];\n};\n\n/**\n * This error is thrown when trying to pass a `<textarea>` element to a `create()` function of an editor class.\n *\n * The only editor type which can be initialized on `<textarea>` elements is\n * the {@glink installation/getting-started/predefined-builds#classic-editor classic editor}.\n * This editor hides the passed element and inserts its own UI next to it. Other types of editors reuse the passed element as their root\n * editable element and therefore `<textarea>` is not appropriate for them. Use a `<div>` or another text container instead:\n *\n *\t\t<div id=\"editor\">\n *\t\t\t<p>Initial content.</p>\n *\t\t</div>\n *\n * @error editor-wrong-element\n */\n\n/**\n * An array of plugins built into this editor class.\n *\n * It is used in CKEditor 5 builds to provide a list of plugins which are later automatically initialized\n * during the editor initialization.\n *\n * They will be automatically initialized by the editor, unless listed in `config.removePlugins` and\n * unless `config.plugins` is passed.\n *\n *\t\t// Build some plugins into the editor class first.\n *\t\tClassicEditor.builtinPlugins = [ FooPlugin, BarPlugin ];\n *\n *\t\t// Normally, you need to define config.plugins, but since ClassicEditor.builtinPlugins was\n *\t\t// defined, now you can call create() without any configuration.\n *\t\tClassicEditor\n *\t\t\t.create( sourceElement )\n *\t\t\t.then( editor => {\n *\t\t\t\teditor.plugins.get( FooPlugin ); // -> An instance of the Foo plugin.\n *\t\t\t\teditor.plugins.get( BarPlugin ); // -> An instance of the Bar plugin.\n *\t\t\t} );\n *\n *\t\tClassicEditor\n *\t\t\t.create( sourceElement, {\n *\t\t\t\t// Do not initialize these plugins (note: it is defined by a string):\n *\t\t\t\tremovePlugins: [ 'Foo' ]\n *\t\t\t} )\n *\t\t\t.then( editor => {\n *\t\t\t\teditor.plugins.get( FooPlugin ); // -> Undefined.\n *\t\t\t\teditor.config.get( BarPlugin ); // -> An instance of the Bar plugin.\n *\t\t\t} );\n *\n *\t\tClassicEditor\n *\t\t\t.create( sourceElement, {\n *\t\t\t\t// Load only this plugin. It can also be defined by a string if\n *\t\t\t\t// this plugin was built into the editor class.\n *\t\t\t\tplugins: [ FooPlugin ]\n *\t\t\t} )\n *\t\t\t.then( editor => {\n *\t\t\t\teditor.plugins.get( FooPlugin ); // -> An instance of the Foo plugin.\n *\t\t\t\teditor.config.get( BarPlugin ); // -> Undefined.\n *\t\t\t} );\n *\n * See also {@link module:core/editor/editor~Editor.defaultConfig}.\n *\n * @static\n * @member {Array.<Function>} module:core/editor/editor~Editor.builtinPlugins\n */\n\n/**\n * The default configuration which is built into the editor class.\n *\n * It is used in CKEditor 5 builds to provide the default configuration options which are later used during the editor initialization.\n *\n *\t\tClassicEditor.defaultConfig = {\n *\t\t\tfoo: 1,\n *\t\t\tbar: 2\n *\t\t};\n *\n *\t\tClassicEditor\n *\t\t\t.create( sourceElement )\n *\t\t\t.then( editor => {\n *\t\t\t\teditor.config.get( 'foo' ); // -> 1\n *\t\t\t\teditor.config.get( 'bar' ); // -> 2\n *\t\t\t} );\n *\n *\t\t// The default options can be overridden by the configuration passed to create().\n *\t\tClassicEditor\n *\t\t\t.create( sourceElement, { bar: 3 } )\n *\t\t\t.then( editor => {\n *\t\t\t\teditor.config.get( 'foo' ); // -> 1\n *\t\t\t\teditor.config.get( 'bar' ); // -> 3\n *\t\t\t} );\n *\n * See also {@link module:core/editor/editor~Editor.builtinPlugins}.\n *\n * @static\n * @member {Object} module:core/editor/editor~Editor.defaultConfig\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/componentfactory\n */\n\nimport { CKEditorError, type Locale } from '@ckeditor/ckeditor5-utils';\nimport type { Editor } from '@ckeditor/ckeditor5-core';\n\nimport type View from './view';\n\n/**\n * A helper class implementing the UI component ({@link module:ui/view~View view}) factory.\n *\n * It allows functions producing specific UI components to be registered under their unique names\n * in the factory. A registered component can be then instantiated by providing its name.\n * Note that the names are case insensitive.\n *\n *\t\t// The editor provides localization tools for the factory.\n *\t\tconst factory = new ComponentFactory( editor );\n *\n *\t\tfactory.add( 'foo', locale => new FooView( locale ) );\n *\t\tfactory.add( 'bar', locale => new BarView( locale ) );\n *\n *\t\t// An instance of FooView.\n *\t\tconst fooInstance = factory.create( 'foo' );\n *\n *\t\t// Names are case insensitive so this is also allowed:\n *\t\tconst barInstance = factory.create( 'Bar' );\n *\n * The {@link module:core/editor/editor~Editor#locale editor locale} is passed to the factory\n * function when {@link module:ui/componentfactory~ComponentFactory#create} is called.\n */\nexport default class ComponentFactory {\n\tpublic readonly editor: Editor;\n\n\tprivate readonly _components: Map<string, { originalName: string; callback: ( locale: Locale ) => View }>;\n\n\t/**\n\t * Creates an instance of the factory.\n\t *\n\t * @constructor\n\t * @param {module:core/editor/editor~Editor} editor The editor instance.\n\t */\n\tconstructor( editor: Editor ) {\n\t\t/**\n\t\t * The editor instance that the factory belongs to.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/editor/editor~Editor}\n\t\t */\n\t\tthis.editor = editor;\n\n\t\t/**\n\t\t * Registered component factories.\n\t\t *\n\t\t * @private\n\t\t * @member {Map}\n\t\t */\n\t\tthis._components = new Map();\n\t}\n\n\t/**\n\t * Returns an iterator of registered component names. Names are returned in lower case.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic* names(): IterableIterator<string> {\n\t\tfor ( const value of this._components.values() ) {\n\t\t\tyield value.originalName;\n\t\t}\n\t}\n\n\t/**\n\t * Registers a component factory function that will be used by the\n\t * {@link #create create} method and called with the\n\t * {@link module:core/editor/editor~Editor#locale editor locale} as an argument,\n\t * allowing localization of the {@link module:ui/view~View view}.\n\t *\n\t * @param {String} name The name of the component.\n\t * @param {Function} callback The callback that returns the component.\n\t */\n\tpublic add( name: string, callback: ( locale: Locale ) => View ): void {\n\t\tthis._components.set( getNormalized( name ), { callback, originalName: name } );\n\t}\n\n\t/**\n\t * Creates an instance of a component registered in the factory under a specific name.\n\t *\n\t * When called, the {@link module:core/editor/editor~Editor#locale editor locale} is passed to\n\t * the previously {@link #add added} factory function, allowing localization of the\n\t * {@link module:ui/view~View view}.\n\t *\n\t * @param {String} name The name of the component.\n\t * @returns {module:ui/view~View} The instantiated component view.\n\t */\n\tpublic create( name: string ): View {\n\t\tif ( !this.has( name ) ) {\n\t\t\t/**\n\t\t\t * The required component is not registered in the component factory. Please make sure\n\t\t\t * the provided name is correct and the component has been correctly\n\t\t\t * {@link #add added} to the factory.\n\t\t\t *\n\t\t\t * @error componentfactory-item-missing\n\t\t\t * @param {String} name The name of the missing component.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'componentfactory-item-missing',\n\t\t\t\tthis,\n\t\t\t\t{ name }\n\t\t\t);\n\t\t}\n\n\t\treturn this._components.get( getNormalized( name ) )!.callback( this.editor.locale );\n\t}\n\n\t/**\n\t * Checks if a component of a given name is registered in the factory.\n\t *\n\t * @param {String} name The name of the component.\n\t * @returns {Boolean}\n\t */\n\tpublic has( name: string ): boolean {\n\t\treturn this._components.has( getNormalized( name ) );\n\t}\n}\n\n//\n// Ensures that the component name used as the key in the internal map is in lower case.\n//\n// @private\n// @param {String} name\n// @returns {String}\nfunction getNormalized( name: unknown ) {\n\treturn String( name ).toLowerCase();\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/viewcollection\n */\n\nimport {\n\tCKEditorError,\n\tCollection,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype EmitterMixinDelegateChain\n} from '@ckeditor/ckeditor5-utils';\n\nimport type View from './view';\n\n/**\n * Collects {@link module:ui/view~View} instances.\n *\n *\t\tconst parentView = new ParentView( locale );\n *\t\tconst collection = new ViewCollection( locale );\n *\n *\t\tcollection.setParent( parentView.element );\n *\n *\t\tconst viewA = new ChildView( locale );\n *\t\tconst viewB = new ChildView( locale );\n *\n * View collection renders and manages view {@link module:ui/view~View#element elements}:\n *\n *\t\tcollection.add( viewA );\n *\t\tcollection.add( viewB );\n *\n *\t\tconsole.log( parentView.element.firsChild ); // -> viewA.element\n *\t\tconsole.log( parentView.element.lastChild ); // -> viewB.element\n *\n * It {@link module:ui/viewcollection~ViewCollection#delegate propagates} DOM events too:\n *\n *\t\t// Delegate #click and #keydown events from viewA and viewB to the parentView.\n *\t\tcollection.delegate( 'click' ).to( parentView );\n *\n *\t\tparentView.on( 'click', ( evt ) => {\n *\t\t\tconsole.log( `${ evt.source } has been clicked.` );\n *\t\t} );\n *\n *\t\t// This event will be delegated to the parentView.\n *\t\tviewB.fire( 'click' );\n *\n * **Note**: A view collection can be used directly in the {@link module:ui/template~TemplateDefinition definition}\n * of a {@link module:ui/template~Template template}.\n *\n * @extends module:utils/collection~Collection\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class ViewCollection extends Collection<View> {\n\tpublic id?: string;\n\n\tprivate _parentElement: DocumentFragment | HTMLElement | null;\n\n\t/**\n\t * Creates a new instance of the {@link module:ui/viewcollection~ViewCollection}.\n\t *\n\t * @param {Iterable.<module:ui/view~View>} [initialItems] The initial items of the collection.\n\t */\n\tconstructor( initialItems: Iterable<View> = [] ) {\n\t\tsuper( initialItems, {\n\t\t\t// An #id Number attribute should be legal and not break the `ViewCollection` instance.\n\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/93\n\t\t\tidProperty: 'viewUid'\n\t\t} );\n\n\t\t// Handle {@link module:ui/view~View#element} in DOM when a new view is added to the collection.\n\t\tthis.on<CollectionAddEvent<View>>( 'add', ( evt, view, index ) => {\n\t\t\tthis._renderViewIntoCollectionParent( view, index );\n\t\t} );\n\n\t\t// Handle {@link module:ui/view~View#element} in DOM when a view is removed from the collection.\n\t\tthis.on<CollectionRemoveEvent<View>>( 'remove', ( evt, view ) => {\n\t\t\tif ( view.element && this._parentElement ) {\n\t\t\t\tview.element.remove();\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * A parent element within which child views are rendered and managed in DOM.\n\t\t *\n\t\t * @protected\n\t\t * @member {HTMLElement}\n\t\t */\n\t\tthis._parentElement = null;\n\t}\n\n\t/**\n\t * Destroys the view collection along with child views.\n\t * See the view {@link module:ui/view~View#destroy} method.\n\t */\n\tpublic destroy(): void {\n\t\tthis.map( view => view.destroy() );\n\t}\n\n\t/**\n\t * Sets the parent HTML element of this collection. When parent is set, {@link #add adding} and\n\t * {@link #remove removing} views in the collection synchronizes their\n\t * {@link module:ui/view~View#element elements} in the parent element.\n\t *\n\t * @param {HTMLElement} element A new parent element.\n\t */\n\tpublic setParent( elementOrDocFragment: DocumentFragment | HTMLElement ): void {\n\t\tthis._parentElement = elementOrDocFragment;\n\n\t\t// Take care of the initial collection items passed to the constructor.\n\t\tfor ( const view of this ) {\n\t\t\tthis._renderViewIntoCollectionParent( view );\n\t\t}\n\t}\n\n\t/**\n\t * Delegates selected events coming from within views in the collection to any\n\t * {@link module:utils/emittermixin~Emitter}.\n\t *\n\t * For the following views and collection:\n\t *\n\t *\t\tconst viewA = new View();\n\t *\t\tconst viewB = new View();\n\t *\t\tconst viewC = new View();\n\t *\n\t *\t\tconst views = parentView.createCollection();\n\t *\n\t *\t\tviews.delegate( 'eventX' ).to( viewB );\n\t *\t\tviews.delegate( 'eventX', 'eventY' ).to( viewC );\n\t *\n\t *\t\tviews.add( viewA );\n\t *\n\t * the `eventX` is delegated (fired by) `viewB` and `viewC` along with `customData`:\n\t *\n\t *\t\tviewA.fire( 'eventX', customData );\n\t *\n\t * and `eventY` is delegated (fired by) `viewC` along with `customData`:\n\t *\n\t *\t\tviewA.fire( 'eventY', customData );\n\t *\n\t * See {@link module:utils/emittermixin~Emitter#delegate}.\n\t *\n\t * @param {...String} events {@link module:ui/view~View} event names to be delegated to another\n\t * {@link module:utils/emittermixin~Emitter}.\n\t * @returns {Object}\n\t * @returns {Function} return.to A function which accepts the destination of\n\t * {@link module:utils/emittermixin~Emitter#delegate delegated} events.\n\t */\n\tpublic override delegate( ...events: Array<string> ): EmitterMixinDelegateChain {\n\t\tif ( !events.length || !isStringArray( events ) ) {\n\t\t\t/**\n\t\t\t * All event names must be strings.\n\t\t\t *\n\t\t\t * @error ui-viewcollection-delegate-wrong-events\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-viewcollection-delegate-wrong-events',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\treturn {\n\t\t\t/**\n\t\t\t * Selects destination for {@link module:utils/emittermixin~Emitter#delegate} events.\n\t\t\t *\n\t\t\t * @memberOf module:ui/viewcollection~ViewCollection#delegate\n\t\t\t * @function module:ui/viewcollection~ViewCollection#delegate.to\n\t\t\t * @param {module:utils/emittermixin~Emitter} dest An `Emitter` instance which is\n\t\t\t * the destination for delegated events.\n\t\t\t */\n\t\t\tto: dest => {\n\t\t\t\t// Activate delegating on existing views in this collection.\n\t\t\t\tfor ( const view of this ) {\n\t\t\t\t\tfor ( const evtName of events ) {\n\t\t\t\t\t\tview.delegate( evtName ).to( dest );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Activate delegating on future views in this collection.\n\t\t\t\tthis.on<CollectionAddEvent<View>>( 'add', ( evt, view ) => {\n\t\t\t\t\tfor ( const evtName of events ) {\n\t\t\t\t\t\tview.delegate( evtName ).to( dest );\n\t\t\t\t\t}\n\t\t\t\t} );\n\n\t\t\t\t// Deactivate delegating when view is removed from this collection.\n\t\t\t\tthis.on<CollectionRemoveEvent<View>>( 'remove', ( evt, view ) => {\n\t\t\t\t\tfor ( const evtName of events ) {\n\t\t\t\t\t\tview.stopDelegating( evtName, dest );\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t}\n\t\t};\n\t}\n\n\t/**\n\t * This method {@link module:ui/view~View#render renders} a new view added to the collection.\n\t *\n\t * If the {@link #_parentElement parent element} of the collection is set, this method also adds\n\t * the view's {@link module:ui/view~View#element} as a child of the parent in DOM at a specified index.\n\t *\n\t * **Note**: If index is not specified, the view's element is pushed as the last child\n\t * of the parent element.\n\t *\n\t * @private\n\t * @param {module:ui/view~View} view A new view added to the collection.\n\t * @param {Number} [index] An index the view holds in the collection. When not specified,\n\t * the view is added at the end.\n\t */\n\tpublic _renderViewIntoCollectionParent( view: View, index?: number ): void {\n\t\tif ( !view.isRendered ) {\n\t\t\tview.render();\n\t\t}\n\n\t\tif ( view.element && this._parentElement ) {\n\t\t\tthis._parentElement.insertBefore( view.element, this._parentElement.children[ index! ] );\n\t\t}\n\t}\n\n\t/**\n\t * Removes a child view from the collection. If the {@link #setParent parent element} of the\n\t * collection has been set, the {@link module:ui/view~View#element element} of the view is also removed\n\t * in DOM, reflecting the order of the collection.\n\t *\n\t * See the {@link #add} method.\n\t *\n\t * @method #remove\n\t * @param {module:ui/view~View|Number|String} subject The view to remove, its id or index in the collection.\n\t * @returns {Object} The removed view.\n\t */\n}\n\n// Check if all entries of the array are of `String` type.\n//\n// @private\n// @param {Array} arr An array to be checked.\n// @returns {Boolean}\nfunction isStringArray( arr: Array<unknown> ): arr is Array<string> {\n\treturn arr.every( a => typeof a == 'string' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/template\n */\n\n/* global document */\n\nimport View from './view';\nimport ViewCollection from './viewcollection';\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tisNode,\n\ttoArray,\n\ttype ArrayOrItem,\n\ttype Emitter,\n\ttype Observable,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport { isObject, cloneDeepWith } from 'lodash-es';\n\nconst xhtmlNs = 'http://www.w3.org/1999/xhtml';\n\n/**\n * A basic Template class. It renders a DOM HTML element or text from a\n * {@link module:ui/template~TemplateDefinition definition} and supports element attributes, children,\n * bindings to {@link module:utils/observablemixin~Observable observables} and DOM event propagation.\n *\n * A simple template can look like this:\n *\n *\t\tconst bind = Template.bind( observable, emitter );\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'p',\n *\t\t\tattributes: {\n *\t\t\t\tclass: 'foo',\n *\t\t\t\tstyle: {\n *\t\t\t\t\tbackgroundColor: 'yellow'\n *\t\t\t\t}\n *\t\t\t},\n *\t\t\ton: {\n *\t\t\t\tclick: bind.to( 'clicked' )\n *\t\t\t},\n *\t\t\tchildren: [\n *\t\t\t\t'A paragraph.'\n *\t\t\t]\n *\t\t} ).render();\n *\n * and it will render the following HTML element:\n *\n *\t\t<p class=\"foo\" style=\"background-color: yellow;\">A paragraph.</p>\n *\n * Additionally, the `observable` will always fire `clicked` upon clicking `<p>` in the DOM.\n *\n * See {@link module:ui/template~TemplateDefinition} to know more about templates and complex\n * template definitions.\n *\n* @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default class Template extends EmitterMixin() {\n\tpublic ns?: string;\n\tpublic tag?: string;\n\tpublic text?: Array<TemplateSimpleValue | TemplateBinding>;\n\tpublic attributes?: Record<string, AttributeValues>;\n\tpublic children?: Array<ViewCollection | View | Node | Template>;\n\tpublic eventListeners?: Record<string, Array<TemplateToBinding>>;\n\n\tprivate _isRendered: boolean;\n\tprivate _revertData: RevertData | null;\n\n\t/**\n\t * Creates an instance of the {@link ~Template} class.\n\t *\n\t * @param {module:ui/template~TemplateDefinition} def The definition of the template.\n\t */\n\tconstructor( def: TemplateDefinition ) {\n\t\tsuper();\n\n\t\tObject.assign( this, normalize( clone( def ) ) );\n\n\t\t/**\n\t\t * Indicates whether this particular Template instance has been\n\t\t * {@link #render rendered}.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._isRendered = false;\n\n\t\t/**\n\t\t * The tag (`tagName`) of this template, e.g. `div`. It also indicates that the template\n\t\t * renders to an HTML element.\n\t\t *\n\t\t * @member {String} #tag\n\t\t */\n\n\t\t/**\n\t\t * The text of the template. It also indicates that the template renders to a DOM text node.\n\t\t *\n\t\t * @member {Array.<String|module:ui/template~TemplateValueSchema>} #text\n\t\t */\n\n\t\t/**\n\t\t * The attributes of the template, e.g. `{ id: [ 'ck-id' ] }`, corresponding with\n\t\t * the attributes of an HTML element.\n\t\t *\n\t\t * **Note**: This property only makes sense when {@link #tag} is defined.\n\t\t *\n\t\t * @member {Object} #attributes\n\t\t */\n\n\t\t/**\n\t\t * The children of the template. They can be either:\n\t\t * * independent instances of {@link ~Template} (sub–templates),\n\t\t * * native DOM Nodes.\n\t\t *\n\t\t * **Note**: This property only makes sense when {@link #tag} is defined.\n\t\t *\n\t\t * @member {Array.<module:ui/template~Template|Node>} #children\n\t\t */\n\n\t\t/**\n\t\t * The DOM event listeners of the template.\n\t\t *\n\t\t * @member {Object} #eventListeners\n\t\t */\n\n\t\t/**\n\t\t * The data used by the {@link #revert} method to restore a node to its original state.\n\t\t *\n\t\t * See: {@link #apply}.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/template~RenderData}\n\t\t */\n\t\tthis._revertData = null;\n\t}\n\n\t/**\n\t * Renders a DOM Node (an HTML element or text) out of the template.\n\t *\n\t *\t\tconst domNode = new Template( { ... } ).render();\n\t *\n\t * See: {@link #apply}.\n\t *\n\t * @returns {HTMLElement|Text}\n\t */\n\tpublic render(): HTMLElement | Text {\n\t\tconst node = this._renderNode( {\n\t\t\tintoFragment: true\n\t\t} as any );\n\n\t\tthis._isRendered = true;\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Applies the template to an existing DOM Node, either HTML element or text.\n\t *\n\t * **Note:** No new DOM nodes will be created. Applying extends:\n\t *\n\t * {@link module:ui/template~TemplateDefinition attributes},\n\t * {@link module:ui/template~TemplateDefinition event listeners}, and\n\t * `textContent` of {@link module:ui/template~TemplateDefinition children} only.\n\t *\n\t * **Note:** Existing `class` and `style` attributes are extended when a template\n\t * is applied to an HTML element, while other attributes and `textContent` are overridden.\n\t *\n\t * **Note:** The process of applying a template can be easily reverted using the\n\t * {@link module:ui/template~Template#revert} method.\n\t *\n\t *\t\tconst element = document.createElement( 'div' );\n\t *\t\tconst observable = new Model( { divClass: 'my-div' } );\n\t *\t\tconst emitter = Object.create( EmitterMixin );\n\t *\t\tconst bind = Template.bind( observable, emitter );\n\t *\n\t *\t\tnew Template( {\n\t *\t\t\tattributes: {\n\t *\t\t\t\tid: 'first-div',\n\t *\t\t\t\tclass: bind.to( 'divClass' )\n\t *\t\t\t},\n\t *\t\t\ton: {\n\t *\t\t\t\tclick: bind( 'elementClicked' ) // Will be fired by the observable.\n\t *\t\t\t},\n\t *\t\t\tchildren: [\n\t *\t\t\t\t'Div text.'\n\t *\t\t\t]\n\t *\t\t} ).apply( element );\n\t *\n\t *\t\tconsole.log( element.outerHTML ); // -> '<div id=\"first-div\" class=\"my-div\"></div>'\n\t *\n\t * @see module:ui/template~Template#render\n\t * @see module:ui/template~Template#revert\n\t * @param {Node} node Root node for the template to apply.\n\t */\n\tpublic apply( node: HTMLElement | Text ): HTMLElement | Text {\n\t\tthis._revertData = getEmptyRevertData();\n\n\t\tthis._renderNode( {\n\t\t\tnode,\n\t\t\tintoFragment: false,\n\t\t\tisApplying: true,\n\t\t\trevertData: this._revertData\n\t\t} );\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Reverts a template {@link module:ui/template~Template#apply applied} to a DOM node.\n\t *\n\t * @param {Node} node The root node for the template to revert. In most of the cases, it is the\n\t * same node used by {@link module:ui/template~Template#apply}.\n\t */\n\tpublic revert( node: HTMLElement | Text ): void {\n\t\tif ( !this._revertData ) {\n\t\t\t/**\n\t\t\t * Attempting to revert a template which has not been applied yet.\n\t\t\t *\n\t\t\t * @error ui-template-revert-not-applied\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-template-revert-not-applied',\n\t\t\t\t[ this, node ]\n\t\t\t);\n\t\t}\n\n\t\tthis._revertTemplateFromNode( node, this._revertData );\n\t}\n\n\t/**\n\t * Returns an iterator which traverses the template in search of {@link module:ui/view~View}\n\t * instances and returns them one by one.\n\t *\n\t *\t\tconst viewFoo = new View();\n\t *\t\tconst viewBar = new View();\n\t *\t\tconst viewBaz = new View();\n\t *\t\tconst template = new Template( {\n\t *\t\t\ttag: 'div',\n\t *\t\t\tchildren: [\n\t *\t\t\t\tviewFoo,\n\t *\t\t\t\t{\n\t *\t\t\t\t\ttag: 'div',\n\t *\t\t\t\t\tchildren: [\n\t *\t\t\t\t\t\tviewBar\n\t *\t\t\t\t\t]\n\t *\t\t\t\t},\n\t *\t\t\t\tviewBaz\n\t *\t\t\t]\n\t *\t\t} );\n\t *\n\t *\t\t// Logs: viewFoo, viewBar, viewBaz\n\t *\t\tfor ( const view of template.getViews() ) {\n\t *\t\t\tconsole.log( view );\n\t *\t\t}\n\t *\n\t * @returns {Iterable.<module:ui/view~View>}\n\t */\n\tpublic* getViews(): IterableIterator<View> {\n\t\tfunction* search( def: Template ): Iterable<View> {\n\t\t\tif ( def.children ) {\n\t\t\t\tfor ( const child of def.children ) {\n\t\t\t\t\tif ( isView( child ) ) {\n\t\t\t\t\t\tyield child;\n\t\t\t\t\t} else if ( isTemplate( child ) ) {\n\t\t\t\t\t\tyield* search( child );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tyield* search( this );\n\t}\n\n\t/**\n\t * An entry point to the interface which binds DOM nodes to\n\t * {@link module:utils/observablemixin~Observable observables}.\n\t * There are two types of bindings:\n\t *\n\t * * HTML element attributes or text `textContent` synchronized with attributes of an\n\t * {@link module:utils/observablemixin~Observable}. Learn more about {@link module:ui/template~BindChain#to}\n\t * and {@link module:ui/template~BindChain#if}.\n\t *\n\t *\t\tconst bind = Template.bind( observable, emitter );\n\t *\n\t *\t\tnew Template( {\n\t *\t\t\tattributes: {\n\t *\t\t\t\t// Binds the element \"class\" attribute to observable#classAttribute.\n\t *\t\t\t\tclass: bind.to( 'classAttribute' )\n\t *\t\t\t}\n\t *\t\t} ).render();\n\t *\n\t * * DOM events fired on HTML element propagated through\n\t * {@link module:utils/observablemixin~Observable}. Learn more about {@link module:ui/template~BindChain#to}.\n\t *\n\t *\t\tconst bind = Template.bind( observable, emitter );\n\t *\n\t *\t\tnew Template( {\n\t *\t\t\ton: {\n\t *\t\t\t\t// Will be fired by the observable.\n\t *\t\t\t\tclick: bind( 'elementClicked' )\n\t *\t\t\t}\n\t *\t\t} ).render();\n\t *\n\t * Also see {@link module:ui/view~View#bindTemplate}.\n\t *\n\t * @param {module:utils/observablemixin~Observable} observable An observable which provides boundable attributes.\n\t * @param {module:utils/emittermixin~Emitter} emitter An emitter that listens to observable attribute\n\t * changes or DOM Events (depending on the kind of the binding). Usually, a {@link module:ui/view~View} instance.\n\t * @returns {module:ui/template~BindChain}\n\t */\n\tpublic static override bind<TObservable extends Observable>(\n\t\tobservable: TObservable,\n\t\temitter: Emitter\n\t): BindChain<TObservable> {\n\t\treturn {\n\t\t\tto( eventNameOrFunctionOrAttribute: any, callback?: any ) {\n\t\t\t\treturn new TemplateToBinding( {\n\t\t\t\t\teventNameOrFunction: eventNameOrFunctionOrAttribute,\n\t\t\t\t\tattribute: eventNameOrFunctionOrAttribute,\n\t\t\t\t\tobservable, emitter, callback\n\t\t\t\t} );\n\t\t\t},\n\n\t\t\tif( attribute: string, valueIfTrue?: string, callback?: any ) {\n\t\t\t\treturn new TemplateIfBinding( {\n\t\t\t\t\tobservable, emitter, attribute, valueIfTrue, callback\n\t\t\t\t} );\n\t\t\t}\n\t\t} as any;\n\t}\n\n\t/**\n\t * Extends an existing {@link module:ui/template~Template} instance with some additional content\n\t * from another {@link module:ui/template~TemplateDefinition}.\n\t *\n\t *\t\tconst bind = Template.bind( observable, emitter );\n\t *\n\t *\t\tconst template = new Template( {\n\t *\t\t\ttag: 'p',\n\t *\t\t\tattributes: {\n\t *\t\t\t\tclass: 'a',\n\t *\t\t\t\tdata-x: bind.to( 'foo' )\n\t *\t\t\t},\n\t *\t\t\tchildren: [\n\t *\t\t\t\t{\n\t *\t\t\t\t\ttag: 'span',\n\t *\t\t\t\t\tattributes: {\n\t *\t\t\t\t\t\tclass: 'b'\n\t *\t\t\t\t\t},\n\t *\t\t\t\t\tchildren: [\n\t *\t\t\t\t\t\t'Span'\n\t *\t\t\t\t\t]\n\t *\t\t\t\t}\n\t *\t\t\t]\n\t *\t\t } );\n\t *\n\t *\t\t// Instance-level extension.\n\t *\t\tTemplate.extend( template, {\n\t *\t\t\tattributes: {\n\t *\t\t\t\tclass: 'b',\n\t *\t\t\t\tdata-x: bind.to( 'bar' )\n\t *\t\t\t},\n\t *\t\t\tchildren: [\n\t *\t\t\t\t{\n\t *\t\t\t\t\tattributes: {\n\t *\t\t\t\t\t\tclass: 'c'\n\t *\t\t\t\t\t}\n\t *\t\t\t\t}\n\t *\t\t\t]\n\t *\t\t} );\n\t *\n\t *\t\t// Child extension.\n\t *\t\tTemplate.extend( template.children[ 0 ], {\n\t *\t\t\tattributes: {\n\t *\t\t\t\tclass: 'd'\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * the `outerHTML` of `template.render()` is:\n\t *\n\t *\t\t<p class=\"a b\" data-x=\"{ observable.foo } { observable.bar }\">\n\t *\t\t\t<span class=\"b c d\">Span</span>\n\t *\t\t</p>\n\t *\n\t * @param {module:ui/template~Template} template An existing template instance to be extended.\n\t * @param {module:ui/template~TemplateDefinition} def Additional definition to be applied to a template.\n\t */\n\tpublic static extend( template: Template, def: Partial<TemplateDefinition> ): void {\n\t\tif ( template._isRendered ) {\n\t\t\t/**\n\t\t\t * Extending a template after rendering may not work as expected. To make sure\n\t\t\t * the {@link module:ui/template~Template.extend extending} works for an element,\n\t\t\t * make sure it happens before {@link #render} is called.\n\t\t\t *\n\t\t\t * @error template-extend-render\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'template-extend-render',\n\t\t\t\t[ this, template ]\n\t\t\t);\n\t\t}\n\n\t\textendTemplate( template, normalize( clone( def ) ) );\n\t}\n\n\t/**\n\t * Renders a DOM Node (either an HTML element or text) out of the template.\n\t *\n\t * @protected\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t */\n\tprivate _renderNode( data: RenderData ) {\n\t\tlet isInvalid;\n\n\t\tif ( data.node ) {\n\t\t\t// When applying, a definition cannot have \"tag\" and \"text\" at the same time.\n\t\t\tisInvalid = this.tag && this.text;\n\t\t} else {\n\t\t\t// When rendering, a definition must have either \"tag\" or \"text\": XOR( this.tag, this.text ).\n\t\t\tisInvalid = this.tag ? this.text : !this.text;\n\t\t}\n\n\t\tif ( isInvalid ) {\n\t\t\t/**\n\t\t\t * Node definition cannot have the \"tag\" and \"text\" properties at the same time.\n\t\t\t * Node definition must have either \"tag\" or \"text\" when rendering a new Node.\n\t\t\t *\n\t\t\t * @error ui-template-wrong-syntax\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-template-wrong-syntax',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tif ( this.text ) {\n\t\t\treturn this._renderText( data );\n\t\t} else {\n\t\t\treturn this._renderElement( data );\n\t\t}\n\t}\n\n\t/**\n\t * Renders an HTML element out of the template.\n\t *\n\t * @protected\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t */\n\tprivate _renderElement( data: RenderData ) {\n\t\tlet node = data.node;\n\n\t\tif ( !node ) {\n\t\t\tnode = data.node = document.createElementNS( this.ns || xhtmlNs, this.tag! ) as any;\n\t\t}\n\n\t\tthis._renderAttributes( data );\n\t\tthis._renderElementChildren( data );\n\t\tthis._setUpListeners( data );\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Renders a text node out of {@link module:ui/template~Template#text}.\n\t *\n\t * @protected\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t */\n\tprivate _renderText( data: RenderData ) {\n\t\tlet node = data.node;\n\n\t\t// Save the original textContent to revert it in #revert().\n\t\tif ( node ) {\n\t\t\tdata.revertData!.text = node.textContent;\n\t\t} else {\n\t\t\tnode = data.node = document.createTextNode( '' );\n\t\t}\n\n\t\t// Check if this Text Node is bound to Observable. Cases:\n\t\t//\n\t\t//\t\ttext: [ Template.bind( ... ).to( ... ) ]\n\t\t//\n\t\t//\t\ttext: [\n\t\t//\t\t\t'foo',\n\t\t//\t\t\tTemplate.bind( ... ).to( ... ),\n\t\t//\t\t\t...\n\t\t//\t\t]\n\t\t//\n\t\tif ( hasTemplateBinding( this.text ) ) {\n\t\t\tthis._bindToObservable( {\n\t\t\t\tschema: this.text!,\n\t\t\t\tupdater: getTextUpdater( node ),\n\t\t\t\tdata\n\t\t\t} );\n\t\t}\n\t\t// Simply set text. Cases:\n\t\t//\n\t\t//\t\ttext: [ 'all', 'are', 'static' ]\n\t\t//\n\t\t//\t\ttext: [ 'foo' ]\n\t\t//\n\t\telse {\n\t\t\tnode.textContent = this.text!.join( '' );\n\t\t}\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Renders HTML element attributes out of {@link module:ui/template~Template#attributes}.\n\t *\n\t * @protected\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t */\n\tprivate _renderAttributes( data: RenderData ) {\n\t\tif ( !this.attributes ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst node = data.node as HTMLElement;\n\t\tconst revertData = data.revertData;\n\n\t\tfor ( const attrName in this.attributes ) {\n\t\t\t// Current attribute value in DOM.\n\t\t\tconst domAttrValue = node.getAttribute( attrName );\n\n\t\t\t// The value to be set.\n\t\t\tconst attrValue = this.attributes[ attrName ];\n\n\t\t\t// Save revert data.\n\t\t\tif ( revertData ) {\n\t\t\t\trevertData.attributes[ attrName ] = domAttrValue;\n\t\t\t}\n\n\t\t\t// Detect custom namespace:\n\t\t\t//\n\t\t\t//\t\tclass: {\n\t\t\t//\t\t\tns: 'abc',\n\t\t\t//\t\t\tvalue: Template.bind( ... ).to( ... )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\tconst attrNs = isNamespaced( attrValue ) ? attrValue[ 0 ].ns : null;\n\n\t\t\t// Activate binding if one is found. Cases:\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\tTemplate.bind( ... ).to( ... )\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\t'bar',\n\t\t\t//\t\t\tTemplate.bind( ... ).to( ... ),\n\t\t\t//\t\t\t'baz'\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\t//\t\tclass: {\n\t\t\t//\t\t\tns: 'abc',\n\t\t\t//\t\t\tvalue: Template.bind( ... ).to( ... )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\tif ( hasTemplateBinding( attrValue ) ) {\n\t\t\t\t// Normalize attributes with additional data like namespace:\n\t\t\t\t//\n\t\t\t\t//\t\tclass: {\n\t\t\t\t//\t\t\tns: 'abc',\n\t\t\t\t//\t\t\tvalue: [ ... ]\n\t\t\t\t//\t\t}\n\t\t\t\t//\n\t\t\t\tconst valueToBind = isNamespaced( attrValue ) ? attrValue[ 0 ].value : attrValue;\n\n\t\t\t\t// Extend the original value of attributes like \"style\" and \"class\",\n\t\t\t\t// don't override them.\n\t\t\t\tif ( revertData && shouldExtend( attrName ) ) {\n\t\t\t\t\tvalueToBind.unshift( domAttrValue );\n\t\t\t\t}\n\n\t\t\t\tthis._bindToObservable( {\n\t\t\t\t\tschema: valueToBind,\n\t\t\t\t\tupdater: getAttributeUpdater( node, attrName, attrNs ),\n\t\t\t\t\tdata\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Style attribute could be an Object so it needs to be parsed in a specific way.\n\t\t\t//\n\t\t\t//\t\tstyle: {\n\t\t\t//\t\t\twidth: '100px',\n\t\t\t//\t\t\theight: Template.bind( ... ).to( ... )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\telse if ( attrName == 'style' && typeof attrValue[ 0 ] !== 'string' ) {\n\t\t\t\tthis._renderStyleAttribute( attrValue[ 0 ] as any, data );\n\t\t\t}\n\n\t\t\t// Otherwise simply set the static attribute:\n\t\t\t//\n\t\t\t//\t\tclass: [ 'foo' ]\n\t\t\t//\n\t\t\t//\t\tclass: [ 'all', 'are', 'static' ]\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\t{\n\t\t\t//\t\t\t\tns: 'abc',\n\t\t\t//\t\t\t\tvalue: [ 'foo' ]\n\t\t\t//\t\t\t}\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\telse {\n\t\t\t\t// Extend the original value of attributes like \"style\" and \"class\",\n\t\t\t\t// don't override them.\n\t\t\t\tif ( revertData && domAttrValue && shouldExtend( attrName ) ) {\n\t\t\t\t\tattrValue.unshift( domAttrValue as any );\n\t\t\t\t}\n\n\t\t\t\tconst value: any = attrValue\n\t\t\t\t\t// Retrieve \"values\" from:\n\t\t\t\t\t//\n\t\t\t\t\t//\t\tclass: [\n\t\t\t\t\t//\t\t\t{\n\t\t\t\t\t//\t\t\t\tns: 'abc',\n\t\t\t\t\t//\t\t\t\tvalue: [ ... ]\n\t\t\t\t\t//\t\t\t}\n\t\t\t\t\t//\t\t]\n\t\t\t\t\t//\n\t\t\t\t\t.map( ( val: any ) => val ? ( val.value || val ) : val )\n\t\t\t\t\t// Flatten the array.\n\t\t\t\t\t.reduce( ( prev, next ) => prev.concat( next ), [] )\n\t\t\t\t\t// Convert into string.\n\t\t\t\t\t.reduce( arrayValueReducer, '' );\n\n\t\t\t\tif ( !isFalsy( value ) ) {\n\t\t\t\t\tnode.setAttributeNS( attrNs, attrName, value );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Renders the `style` attribute of an HTML element based on\n\t * {@link module:ui/template~Template#attributes}.\n\t *\n\t * A style attribute is an {Object} with static values:\n\t *\n\t *\t\tattributes: {\n\t *\t\t\tstyle: {\n\t *\t\t\t\tcolor: 'red'\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t * or values bound to {@link module:ui/model~Model} properties:\n\t *\n\t *\t\tattributes: {\n\t *\t\t\tstyle: {\n\t *\t\t\t\tcolor: bind.to( ... )\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t * Note: The `style` attribute is rendered without setting the namespace. It does not seem to be\n\t * needed.\n\t *\n\t * @private\n\t * @param {Object} styles Styles located in `attributes.style` of {@link module:ui/template~TemplateDefinition}.\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t */\n\tprivate _renderStyleAttribute( styles: Record<string, TemplateSimpleValue | TemplateBinding>, data: RenderData ) {\n\t\tconst node = data.node;\n\n\t\tfor ( const styleName in styles ) {\n\t\t\tconst styleValue = styles[ styleName ];\n\n\t\t\t// Cases:\n\t\t\t//\n\t\t\t//\t\tstyle: {\n\t\t\t//\t\t\tcolor: bind.to( 'attribute' )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\tif ( hasTemplateBinding( styleValue ) ) {\n\t\t\t\tthis._bindToObservable( {\n\t\t\t\t\tschema: [ styleValue ],\n\t\t\t\t\tupdater: getStyleUpdater( node, styleName ),\n\t\t\t\t\tdata\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Cases:\n\t\t\t//\n\t\t\t//\t\tstyle: {\n\t\t\t//\t\t\tcolor: 'red'\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\telse {\n\t\t\t\t( node as any ).style[ styleName ] = styleValue;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Recursively renders HTML element's children from {@link module:ui/template~Template#children}.\n\t *\n\t * @protected\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t */\n\tprivate _renderElementChildren( data: RenderData ) {\n\t\tconst node = data.node as HTMLElement;\n\t\tconst container = data.intoFragment ? document.createDocumentFragment() : node;\n\t\tconst isApplying = data.isApplying;\n\t\tlet childIndex = 0;\n\n\t\tfor ( const child of this.children! ) {\n\t\t\tif ( isViewCollection( child ) ) {\n\t\t\t\tif ( !isApplying ) {\n\t\t\t\t\tchild.setParent( node );\n\n\t\t\t\t\t// Note: ViewCollection renders its children.\n\t\t\t\t\tfor ( const view of child ) {\n\t\t\t\t\t\tcontainer.appendChild( view.element! );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else if ( isView( child ) ) {\n\t\t\t\tif ( !isApplying ) {\n\t\t\t\t\tif ( !child.isRendered ) {\n\t\t\t\t\t\tchild.render();\n\t\t\t\t\t}\n\n\t\t\t\t\tcontainer.appendChild( child.element! );\n\t\t\t\t}\n\t\t\t} else if ( isNode( child ) ) {\n\t\t\t\tcontainer.appendChild( child );\n\t\t\t} else {\n\t\t\t\tif ( isApplying ) {\n\t\t\t\t\tconst revertData = data.revertData!;\n\t\t\t\t\tconst childRevertData = getEmptyRevertData();\n\n\t\t\t\t\trevertData.children.push( childRevertData );\n\n\t\t\t\t\tchild._renderNode( {\n\t\t\t\t\t\tintoFragment: false,\n\t\t\t\t\t\tnode: container.childNodes[ childIndex++ ] as any,\n\t\t\t\t\t\tisApplying: true,\n\t\t\t\t\t\trevertData: childRevertData\n\t\t\t\t\t} );\n\t\t\t\t} else {\n\t\t\t\t\tcontainer.appendChild( child.render() );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( data.intoFragment ) {\n\t\t\tnode.appendChild( container );\n\t\t}\n\t}\n\n\t/**\n\t * Activates `on` event listeners from the {@link module:ui/template~TemplateDefinition}\n\t * on an HTML element.\n\t *\n\t * @protected\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t */\n\tprivate _setUpListeners( data: RenderData ) {\n\t\tif ( !this.eventListeners ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const key in this.eventListeners ) {\n\t\t\tconst revertBindings = this.eventListeners[ key ].map( schemaItem => {\n\t\t\t\tconst [ domEvtName, domSelector ] = key.split( '@' );\n\n\t\t\t\treturn schemaItem.activateDomEventListener( domEvtName, domSelector, data );\n\t\t\t} );\n\n\t\t\tif ( data.revertData ) {\n\t\t\t\tdata.revertData.bindings.push( revertBindings );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * For a given {@link module:ui/template~TemplateValueSchema} containing {@link module:ui/template~TemplateBinding}\n\t * activates the binding and sets its initial value.\n\t *\n\t * Note: {@link module:ui/template~TemplateValueSchema} can be for HTML element attributes or\n\t * text node `textContent`.\n\t *\n\t * @protected\n\t * @param {Object} options Binding options.\n\t * @param {module:ui/template~TemplateValueSchema} options.schema\n\t * @param {Function} options.updater A function which updates the DOM (like attribute or text).\n\t * @param {module:ui/template~RenderData} options.data Rendering data.\n\t */\n\tprivate _bindToObservable( { schema, updater, data }: {\n\t\tschema: Array<TemplateSimpleValue | TemplateBinding>;\n\t\tupdater: Updater;\n\t\tdata: RenderData;\n\t} ) {\n\t\tconst revertData = data.revertData;\n\n\t\t// Set initial values.\n\t\tsyncValueSchemaValue( schema, updater, data );\n\n\t\tconst revertBindings = schema\n\t\t\t// Filter \"falsy\" (false, undefined, null, '') value schema components out.\n\t\t\t.filter( item => !isFalsy( item ) )\n\t\t\t// Filter inactive bindings from schema, like static strings ('foo'), numbers (42), etc.\n\t\t\t.filter( ( item: any ): item is TemplateBinding => item.observable )\n\t\t\t// Once only the actual binding are left, let the emitter listen to observable change:attribute event.\n\t\t\t// TODO: Reduce the number of listeners attached as many bindings may listen\n\t\t\t// to the same observable attribute.\n\t\t\t.map( templateBinding => templateBinding.activateAttributeListener( schema, updater, data ) );\n\n\t\tif ( revertData ) {\n\t\t\trevertData.bindings.push( revertBindings );\n\t\t}\n\t}\n\n\t/**\n\t * Reverts {@link module:ui/template~RenderData#revertData template data} from a node to\n\t * return it to the original state.\n\t *\n\t * @protected\n\t * @param {HTMLElement|Text} node A node to be reverted.\n\t * @param {Object} revertData An object that stores information about what changes have been made by\n\t * {@link #apply} to the node. See {@link module:ui/template~RenderData#revertData} for more information.\n\t */\n\tprivate _revertTemplateFromNode( node: HTMLElement | Text, revertData: RevertData ) {\n\t\tfor ( const binding of revertData.bindings ) {\n\t\t\t// Each binding may consist of several observable+observable#attribute.\n\t\t\t// like the following has 2:\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\t'x',\n\t\t\t//\t\t\tbind.to( 'foo' ),\n\t\t\t//\t\t\t'y',\n\t\t\t//\t\t\tbind.to( 'bar' )\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\tfor ( const revertBinding of binding ) {\n\t\t\t\trevertBinding();\n\t\t\t}\n\t\t}\n\n\t\tif ( revertData.text ) {\n\t\t\tnode.textContent = revertData.text;\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst element = node as HTMLElement;\n\n\t\tfor ( const attrName in revertData.attributes ) {\n\t\t\tconst attrValue = revertData.attributes[ attrName ];\n\n\t\t\t// When the attribute has **not** been set before #apply().\n\t\t\tif ( attrValue === null ) {\n\t\t\t\telement.removeAttribute( attrName );\n\t\t\t} else {\n\t\t\t\telement.setAttribute( attrName, attrValue );\n\t\t\t}\n\t\t}\n\n\t\tfor ( let i = 0; i < revertData.children.length; ++i ) {\n\t\t\tthis._revertTemplateFromNode( element.childNodes[ i ] as any, revertData.children[ i ] );\n\t\t}\n\t}\n}\n\ntype AttributeValues = Array<TemplateSimpleValue | TemplateBinding> |\n\t[ NamespacedValue<Array<TemplateSimpleValue | TemplateBinding>> ];\n\n/**\n * Describes a binding created by the {@link module:ui/template~Template.bind} interface.\n *\n * @protected\n * @internal\n */\nexport abstract class TemplateBinding {\n\tpublic readonly attribute: string;\n\tpublic readonly observable: Observable;\n\tpublic readonly emitter: Emitter;\n\tpublic readonly callback?: ( value: any, node: Node ) => TemplateSimpleValue;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/template~TemplateBinding} class.\n\t *\n\t * @param {module:ui/template~TemplateDefinition} def The definition of the binding.\n\t */\n\tconstructor( def: {\n\t\tattribute: string;\n\t\tobservable: Observable;\n\t\temitter: Emitter;\n\t\tcallback?: ( value: any, node: Node ) => TemplateSimpleValue;\n\t} ) {\n\t\tthis.attribute = def.attribute;\n\t\tthis.observable = def.observable;\n\t\tthis.emitter = def.emitter;\n\t\tthis.callback = def.callback;\n\n\t\t/**\n\t\t * An observable instance of the binding. It either:\n\t\t *\n\t\t * * provides the attribute with the value,\n\t\t * * or passes the event when a corresponding DOM event is fired.\n\t\t *\n\t\t * @member {module:utils/observablemixin~ObservableMixin} module:ui/template~TemplateBinding#observable\n\t\t */\n\n\t\t/**\n\t\t * An {@link module:utils/emittermixin~Emitter} used by the binding to:\n\t\t *\n\t\t * * listen to the attribute change in the {@link module:ui/template~TemplateBinding#observable},\n\t\t * * or listen to the event in the DOM.\n\t\t *\n\t\t * @member {module:utils/emittermixin~EmitterMixin} module:ui/template~TemplateBinding#emitter\n\t\t */\n\n\t\t/**\n\t\t * The name of the {@link module:ui/template~TemplateBinding#observable observed attribute}.\n\t\t *\n\t\t * @member {String} module:ui/template~TemplateBinding#attribute\n\t\t */\n\n\t\t/**\n\t\t * A custom function to process the value of the {@link module:ui/template~TemplateBinding#attribute}.\n\t\t *\n\t\t * @member {Function} [module:ui/template~TemplateBinding#callback]\n\t\t */\n\t}\n\n\t/**\n\t * Returns the value of the binding. It is the value of the {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable}. The value may be processed by the\n\t * {@link module:ui/template~TemplateBinding#callback}, if such has been passed to the binding.\n\t *\n\t * @param {Node} [node] A native DOM node, passed to the custom {@link module:ui/template~TemplateBinding#callback}.\n\t * @returns {*} The value of {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable}.\n\t */\n\tpublic getValue( node: Node ): TemplateSimpleValue {\n\t\tconst value = ( this.observable as any )[ this.attribute ];\n\n\t\treturn this.callback ? this.callback( value, node ) : value;\n\t}\n\n\t/**\n\t * Activates the listener which waits for changes of the {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable}, then updates the DOM with the aggregated\n\t * value of {@link module:ui/template~TemplateValueSchema}.\n\t *\n\t * @param {module:ui/template~TemplateValueSchema} schema A full schema to generate an attribute or text in the DOM.\n\t * @param {Function} updater A DOM updater function used to update the native DOM attribute or text.\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t * @returns {Function} A function to sever the listener binding.\n\t */\n\tpublic activateAttributeListener(\n\t\tschema: Array<TemplateSimpleValue | TemplateBinding>,\n\t\tupdater: Updater,\n\t\tdata: RenderData\n\t): () => void {\n\t\tconst callback = () => syncValueSchemaValue( schema, updater, data );\n\n\t\tthis.emitter.listenTo<ObservableChangeEvent>( this.observable, `change:${ this.attribute }`, callback );\n\n\t\t// Allows revert of the listener.\n\t\treturn () => {\n\t\t\tthis.emitter.stopListening( this.observable, `change:${ this.attribute }`, callback );\n\t\t};\n\t}\n}\n\n/**\n * Describes either:\n *\n * * a binding to an {@link module:utils/observablemixin~Observable},\n * * or a native DOM event binding.\n *\n * It is created by the {@link module:ui/template~BindChain#to} method.\n *\n * @protected\n * @internal\n */\nexport class TemplateToBinding extends TemplateBinding {\n\tpublic readonly eventNameOrFunction: string | ( ( domEvent: Event ) => void );\n\n\tconstructor( def: ConstructorParameters<typeof TemplateBinding>[ 0 ] & {\n\t\teventNameOrFunction: string | ( ( domEvent: Event ) => void );\n\t} ) {\n\t\tsuper( def );\n\n\t\tthis.eventNameOrFunction = def.eventNameOrFunction;\n\t}\n\n\t/**\n\t * Activates the listener for the native DOM event, which when fired, is propagated by\n\t * the {@link module:ui/template~TemplateBinding#emitter}.\n\t *\n\t * @param {String} domEvtName The name of the native DOM event.\n\t * @param {String} domSelector The selector in the DOM to filter delegated events.\n\t * @param {module:ui/template~RenderData} data Rendering data.\n\t * @returns {Function} A function to sever the listener binding.\n\t */\n\tpublic activateDomEventListener(\n\t\tdomEvtName: string,\n\t\tdomSelector: string,\n\t\tdata: { node: any }\n\t): () => void {\n\t\tconst callback = ( evt: unknown, domEvt: Event ) => {\n\t\t\tif ( !domSelector || ( domEvt.target as Element ).matches( domSelector ) ) {\n\t\t\t\tif ( typeof this.eventNameOrFunction == 'function' ) {\n\t\t\t\t\tthis.eventNameOrFunction( domEvt );\n\t\t\t\t} else {\n\t\t\t\t\tthis.observable.fire( this.eventNameOrFunction, domEvt );\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\tthis.emitter.listenTo( data.node, domEvtName, callback );\n\n\t\t// Allows revert of the listener.\n\t\treturn () => {\n\t\t\tthis.emitter.stopListening( data.node, domEvtName, callback );\n\t\t};\n\t}\n}\n\n/**\n * Describes a binding to {@link module:utils/observablemixin~ObservableMixin} created by the {@link module:ui/template~BindChain#if}\n * method.\n *\n * @protected\n * @internal\n */\nexport class TemplateIfBinding extends TemplateBinding {\n\tpublic readonly valueIfTrue?: string;\n\n\tconstructor( def: ConstructorParameters<typeof TemplateBinding>[ 0 ] & {\n\t\tvalueIfTrue?: string;\n\t} ) {\n\t\tsuper( def );\n\n\t\tthis.valueIfTrue = def.valueIfTrue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override getValue( node: Node ): TemplateSimpleValue {\n\t\tconst value = super.getValue( node );\n\n\t\treturn isFalsy( value ) ? false : ( this.valueIfTrue || true ) as any;\n\t}\n\n\t/**\n\t * The value of the DOM attribute or text to be set if the {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable} is `true`.\n\t *\n\t * @member {String} [module:ui/template~TemplateIfBinding#valueIfTrue]\n\t */\n}\n\n// Checks whether given {@link module:ui/template~TemplateValueSchema} contains a\n// {@link module:ui/template~TemplateBinding}.\n//\n// @param {module:ui/template~TemplateValueSchema} schema\n// @returns {Boolean}\nfunction hasTemplateBinding( schema: any ) {\n\tif ( !schema ) {\n\t\treturn false;\n\t}\n\n\t// Normalize attributes with additional data like namespace:\n\t//\n\t//\t\tclass: {\n\t//\t\t\tns: 'abc',\n\t//\t\t\tvalue: [ ... ]\n\t//\t\t}\n\t//\n\tif ( schema.value ) {\n\t\tschema = schema.value;\n\t}\n\n\tif ( Array.isArray( schema ) ) {\n\t\treturn schema.some( hasTemplateBinding );\n\t} else if ( schema instanceof TemplateBinding ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n// Assembles the value using {@link module:ui/template~TemplateValueSchema} and stores it in a form of\n// an Array. Each entry of the Array corresponds to one of {@link module:ui/template~TemplateValueSchema}\n// items.\n//\n// @param {module:ui/template~TemplateValueSchema} schema\n// @param {Node} node DOM Node updated when {@link module:utils/observablemixin~ObservableMixin} changes.\n// @returns {Array}\nfunction getValueSchemaValue( schema: Array<TemplateSimpleValue | TemplateBinding>, node: Node ) {\n\treturn schema.map( schemaItem => {\n\t\t// Process {@link module:ui/template~TemplateBinding} bindings.\n\t\tif ( schemaItem instanceof TemplateBinding ) {\n\t\t\treturn schemaItem.getValue( node );\n\t\t}\n\n\t\t// All static values like strings, numbers, and \"falsy\" values (false, null, undefined, '', etc.) just pass.\n\t\treturn schemaItem;\n\t} );\n}\n\n// A function executed each time the bound Observable attribute changes, which updates the DOM with a value\n// constructed from {@link module:ui/template~TemplateValueSchema}.\n//\n// @param {module:ui/template~TemplateValueSchema} schema\n// @param {Function} updater A function which updates the DOM (like attribute or text).\n// @param {Node} node DOM Node updated when {@link module:utils/observablemixin~ObservableMixin} changes.\nfunction syncValueSchemaValue(\n\tschema: Array<TemplateSimpleValue | TemplateBinding>,\n\tupdater: Updater,\n\t{ node }: { node: Node }\n) {\n\tconst values = getValueSchemaValue( schema, node );\n\tlet value: TemplateSimpleValue;\n\n\t// Check if schema is a single Template.bind.if, like:\n\t//\n\t//\t\tclass: Template.bind.if( 'foo' )\n\t//\n\tif ( schema.length == 1 && schema[ 0 ] instanceof TemplateIfBinding ) {\n\t\tvalue = values[ 0 ];\n\t} else {\n\t\tvalue = values.reduce( arrayValueReducer, '' );\n\t}\n\n\tif ( isFalsy( value ) ) {\n\t\tupdater.remove();\n\t} else {\n\t\tupdater.set( value );\n\t}\n}\n\ninterface Updater {\n\tset( value: any ): void;\n\tremove(): void;\n}\n\n// Returns an object consisting of `set` and `remove` functions, which\n// can be used in the context of DOM Node to set or reset `textContent`.\n// @see module:ui/view~View#_bindToObservable\n//\n// @param {Node} node DOM Node to be modified.\n// @returns {Object}\nfunction getTextUpdater( node: Node ): Updater {\n\treturn {\n\t\tset( value ) {\n\t\t\tnode.textContent = value;\n\t\t},\n\n\t\tremove() {\n\t\t\tnode.textContent = '';\n\t\t}\n\t};\n}\n\n// Returns an object consisting of `set` and `remove` functions, which\n// can be used in the context of DOM Node to set or reset an attribute.\n// @see module:ui/view~View#_bindToObservable\n//\n// @param {Node} node DOM Node to be modified.\n// @param {String} attrName Name of the attribute to be modified.\n// @param {String} [ns=null] Namespace to use.\n// @returns {Object}\nfunction getAttributeUpdater( el: Element, attrName: string, ns: string | null ): Updater {\n\treturn {\n\t\tset( value ) {\n\t\t\tel.setAttributeNS( ns, attrName, value );\n\t\t},\n\n\t\tremove() {\n\t\t\tel.removeAttributeNS( ns, attrName );\n\t\t}\n\t};\n}\n\n// Returns an object consisting of `set` and `remove` functions, which\n// can be used in the context of CSSStyleDeclaration to set or remove a style.\n// @see module:ui/view~View#_bindToObservable\n//\n// @param {Node} node DOM Node to be modified.\n// @param {String} styleName Name of the style to be modified.\n// @returns {Object}\nfunction getStyleUpdater( el: any, styleName: string ): Updater {\n\treturn {\n\t\tset( value ) {\n\t\t\tel.style[ styleName ] = value;\n\t\t},\n\n\t\tremove() {\n\t\t\tel.style[ styleName ] = null;\n\t\t}\n\t};\n}\n\n// Clones definition of the template.\n//\n// @param {module:ui/template~TemplateDefinition} def\n// @returns {module:ui/template~TemplateDefinition}\nfunction clone( def: unknown ) {\n\tconst clone = cloneDeepWith( def, value => {\n\t\t// Don't clone the `Template.bind`* bindings because of the references to Observable\n\t\t// and DomEmitterMixin instances inside, which would also be traversed and cloned by greedy\n\t\t// cloneDeepWith algorithm. There's no point in cloning Observable/DomEmitterMixins\n\t\t// along with the definition.\n\t\t//\n\t\t// Don't clone Template instances if provided as a child. They're simply #render()ed\n\t\t// and nothing should interfere.\n\t\t//\n\t\t// Also don't clone View instances if provided as a child of the Template. The template\n\t\t// instance will be extracted from the View during the normalization and there's no need\n\t\t// to clone it.\n\t\tif ( value && ( value instanceof TemplateBinding || isTemplate( value ) || isView( value ) || isViewCollection( value ) ) ) {\n\t\t\treturn value;\n\t\t}\n\t} );\n\n\treturn clone;\n}\n\n// Normalizes given {@link module:ui/template~TemplateDefinition}.\n//\n// See:\n//  * {@link normalizeAttributes}\n//  * {@link normalizeListeners}\n//  * {@link normalizePlainTextDefinition}\n//  * {@link normalizeTextDefinition}\n//\n// @param {module:ui/template~TemplateDefinition} def\n// @returns {module:ui/template~TemplateDefinition} Normalized definition.\nfunction normalize( def: any ) {\n\tif ( typeof def == 'string' ) {\n\t\tdef = normalizePlainTextDefinition( def );\n\t} else if ( def.text ) {\n\t\tnormalizeTextDefinition( def );\n\t}\n\n\tif ( def.on ) {\n\t\tdef.eventListeners = normalizeListeners( def.on );\n\n\t\t// Template mixes EmitterMixin, so delete #on to avoid collision.\n\t\tdelete def.on;\n\t}\n\n\tif ( !def.text ) {\n\t\tif ( def.attributes ) {\n\t\t\tnormalizeAttributes( def.attributes );\n\t\t}\n\n\t\tconst children = [];\n\n\t\tif ( def.children ) {\n\t\t\tif ( isViewCollection( def.children ) ) {\n\t\t\t\tchildren.push( def.children );\n\t\t\t} else {\n\t\t\t\tfor ( const child of def.children ) {\n\t\t\t\t\tif ( isTemplate( child ) || isView( child ) || isNode( child ) ) {\n\t\t\t\t\t\tchildren.push( child );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tchildren.push( new Template( child ) );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tdef.children = children;\n\t}\n\n\treturn def;\n}\n\n// Normalizes \"attributes\" section of {@link module:ui/template~TemplateDefinition}.\n//\n//\t\tattributes: {\n//\t\t\ta: 'bar',\n//\t\t\tb: {@link module:ui/template~TemplateBinding},\n//\t\t\tc: {\n//\t\t\t\tvalue: 'bar'\n//\t\t\t}\n//\t\t}\n//\n// becomes\n//\n//\t\tattributes: {\n//\t\t\ta: [ 'bar' ],\n//\t\t\tb: [ {@link module:ui/template~TemplateBinding} ],\n//\t\t\tc: {\n//\t\t\t\tvalue: [ 'bar' ]\n//\t\t\t}\n//\t\t}\n//\n// @param {Object} attributes\nfunction normalizeAttributes( attributes: any ) {\n\tfor ( const a in attributes ) {\n\t\tif ( attributes[ a ].value ) {\n\t\t\tattributes[ a ].value = toArray( attributes[ a ].value );\n\t\t}\n\n\t\tarrayify( attributes, a );\n\t}\n}\n\n// Normalizes \"on\" section of {@link module:ui/template~TemplateDefinition}.\n//\n//\t\ton: {\n//\t\t\ta: 'bar',\n//\t\t\tb: {@link module:ui/template~TemplateBinding},\n//\t\t\tc: [ {@link module:ui/template~TemplateBinding}, () => { ... } ]\n//\t\t}\n//\n// becomes\n//\n//\t\ton: {\n//\t\t\ta: [ 'bar' ],\n//\t\t\tb: [ {@link module:ui/template~TemplateBinding} ],\n//\t\t\tc: [ {@link module:ui/template~TemplateBinding}, () => { ... } ]\n//\t\t}\n//\n// @param {Object} listeners\n// @returns {Object} Object containing normalized listeners.\nfunction normalizeListeners( listeners: any ) {\n\tfor ( const l in listeners ) {\n\t\tarrayify( listeners, l );\n\t}\n\n\treturn listeners;\n}\n\n// Normalizes \"string\" {@link module:ui/template~TemplateDefinition}.\n//\n//\t\t\"foo\"\n//\n// becomes\n//\n//\t\t{ text: [ 'foo' ] },\n//\n// @param {String} def\n// @returns {module:ui/template~TemplateDefinition} Normalized template definition.\nfunction normalizePlainTextDefinition( def: string ) {\n\treturn {\n\t\ttext: [ def ]\n\t};\n}\n\n// Normalizes text {@link module:ui/template~TemplateDefinition}.\n//\n//\t\tchildren: [\n//\t\t\t{ text: 'def' },\n//\t\t\t{ text: {@link module:ui/template~TemplateBinding} }\n//\t\t]\n//\n// becomes\n//\n//\t\tchildren: [\n//\t\t\t{ text: [ 'def' ] },\n//\t\t\t{ text: [ {@link module:ui/template~TemplateBinding} ] }\n//\t\t]\n//\n// @param {module:ui/template~TemplateDefinition} def\nfunction normalizeTextDefinition( def: any ) {\n\tdef.text = toArray( def.text );\n}\n\n// Wraps an entry in Object in an Array, if not already one.\n//\n//\t\t{\n//\t\t\tx: 'y',\n//\t\t\ta: [ 'b' ]\n//\t\t}\n//\n// becomes\n//\n//\t\t{\n//\t\t\tx: [ 'y' ],\n//\t\t\ta: [ 'b' ]\n//\t\t}\n//\n// @param {Object} obj\n// @param {String} key\nfunction arrayify( obj: any, key: string ) {\n\tobj[ key ] = toArray( obj[ key ] );\n}\n\n// A helper which concatenates the value avoiding unwanted\n// leading white spaces.\n//\n// @param {String} prev\n// @param {String} cur\n// @returns {String}\nfunction arrayValueReducer( prev: TemplateSimpleValue, cur: TemplateSimpleValue ) {\n\tif ( isFalsy( cur ) ) {\n\t\treturn prev;\n\t} else if ( isFalsy( prev ) ) {\n\t\treturn cur;\n\t} else {\n\t\treturn `${ prev } ${ cur }`;\n\t}\n}\n\n// Extends one object defined in the following format:\n//\n//\t\t{\n//\t\t\tkey1: [Array1],\n//\t\t\tkey2: [Array2],\n//\t\t\t...\n//\t\t\tkeyN: [ArrayN]\n//\t\t}\n//\n// with another object of the same data format.\n//\n// @param {Object} obj Base object.\n// @param {Object} ext Object extending base.\n// @returns {String}\nfunction extendObjectValueArray( obj: any, ext: any ) {\n\tfor ( const a in ext ) {\n\t\tif ( obj[ a ] ) {\n\t\t\tobj[ a ].push( ...ext[ a ] );\n\t\t} else {\n\t\t\tobj[ a ] = ext[ a ];\n\t\t}\n\t}\n}\n\n// A helper for {@link module:ui/template~Template#extend}. Recursively extends {@link module:ui/template~Template} instance\n// with content from {@link module:ui/template~TemplateDefinition}. See {@link module:ui/template~Template#extend} to learn more.\n//\n// @param {module:ui/template~Template} def A template instance to be extended.\n// @param {module:ui/template~TemplateDefinition} def A definition which is to extend the template instance.\n// @param {Object} Error context.\nfunction extendTemplate( template: Template, def: any ) {\n\tif ( def.attributes ) {\n\t\tif ( !template.attributes ) {\n\t\t\ttemplate.attributes = {};\n\t\t}\n\n\t\textendObjectValueArray( template.attributes, def.attributes );\n\t}\n\n\tif ( def.eventListeners ) {\n\t\tif ( !template.eventListeners ) {\n\t\t\ttemplate.eventListeners = {};\n\t\t}\n\n\t\textendObjectValueArray( template.eventListeners, def.eventListeners );\n\t}\n\n\tif ( def.text ) {\n\t\ttemplate.text!.push( ...def.text );\n\t}\n\n\tif ( def.children && def.children.length ) {\n\t\tif ( template.children!.length != def.children.length ) {\n\t\t\t/**\n\t\t\t * The number of children in extended definition does not match.\n\t\t\t *\n\t\t\t * @error ui-template-extend-children-mismatch\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-template-extend-children-mismatch',\n\t\t\t\ttemplate\n\t\t\t);\n\t\t}\n\n\t\tlet childIndex = 0;\n\n\t\tfor ( const childDef of def.children ) {\n\t\t\textendTemplate( template.children![ childIndex++ ] as any, childDef );\n\t\t}\n\t}\n}\n\n// Checks if value is \"falsy\".\n// Note: 0 (Number) is not \"falsy\" in this context.\n//\n// @private\n// @param {*} value Value to be checked.\nfunction isFalsy( value: unknown ): value is FalsyValue {\n\treturn !value && value !== 0;\n}\n\n// Checks if the item is an instance of {@link module:ui/view~View}\n//\n// @private\n// @param {*} value Value to be checked.\nfunction isView( item: unknown ): item is View {\n\treturn item instanceof View;\n}\n\n// Checks if the item is an instance of {@link module:ui/template~Template}\n//\n// @private\n// @param {*} value Value to be checked.\nfunction isTemplate( item: unknown ): item is Template {\n\treturn item instanceof Template;\n}\n\n// Checks if the item is an instance of {@link module:ui/viewcollection~ViewCollection}\n//\n// @private\n// @param {*} value Value to be checked.\nfunction isViewCollection( item: unknown ): item is ViewCollection {\n\treturn item instanceof ViewCollection;\n}\n\n// Checks if value array contains the one with namespace.\nfunction isNamespaced(\n\tattrValue: AttributeValues\n): attrValue is [ NamespacedValue<Array<TemplateSimpleValue | TemplateBinding>> ] {\n\treturn isObject( attrValue[ 0 ] ) && ( attrValue[ 0 ] as any ).ns;\n}\n\n// Creates an empty skeleton for {@link module:ui/template~Template#revert}\n// data.\n//\n// @private\nfunction getEmptyRevertData(): RevertData {\n\treturn {\n\t\tchildren: [],\n\t\tbindings: [],\n\t\tattributes: {}\n\t};\n}\n\n// Checks whether an attribute should be extended when\n// {@link module:ui/template~Template#apply} is called.\n//\n// @private\n// @param {String} attrName Attribute name to check.\nfunction shouldExtend( attrName: string ) {\n\treturn attrName == 'class' || attrName == 'style';\n}\n\n/**\n * A definition of the {@link module:ui/template~Template}. It describes what kind of\n * node a template will render (HTML element or text), attributes of an element, DOM event\n * listeners and children.\n *\n * Also see:\n * * {@link module:ui/template~TemplateValueSchema} to learn about HTML element attributes,\n * * {@link module:ui/template~TemplateListenerSchema} to learn about DOM event listeners.\n *\n * A sample definition on an HTML element can look like this:\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'p',\n *\t\t\tchildren: [\n *\t\t\t\t{\n *\t\t\t\t\ttag: 'span',\n *\t\t\t\t\tattributes: { ... },\n *\t\t\t\t\tchildren: [ ... ],\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\ttext: 'static–text'\n *\t\t\t\t},\n *\t\t\t\t'also-static–text',\n *\t\t\t],\n *\t\t\tattributes: {\n *\t\t\t\tclass: {@link module:ui/template~TemplateValueSchema},\n *\t\t\t\tid: {@link module:ui/template~TemplateValueSchema},\n *\t\t\t\tstyle: {@link module:ui/template~TemplateValueSchema}\n *\n *\t\t\t\t// ...\n *\t\t\t},\n *\t\t\ton: {\n *\t\t\t\t'click': {@link module:ui/template~TemplateListenerSchema}\n *\n *\t\t\t\t// Document.querySelector format is also accepted.\n *\t\t\t\t'keyup@a.some-class': {@link module:ui/template~TemplateListenerSchema}\n *\n *\t\t\t\t// ...\n *\t\t\t}\n *\t\t} );\n *\n * A {@link module:ui/view~View}, another {@link module:ui/template~Template} or a native DOM node\n * can also become a child of a template. When a view is passed, its {@link module:ui/view~View#element} is used:\n *\n *\t\tconst view = new SomeView();\n *\t\tconst childTemplate = new Template( { ... } );\n *\t\tconst childNode = document.createElement( 'b' );\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'p',\n *\n *\t\t\tchildren: [\n *\t\t\t\t// view#element will be added as a child of this <p>.\n *\t\t\t\tview,\n *\n * \t\t\t\t// The output of childTemplate.render() will be added here.\n *\t\t\t\tchildTemplate,\n *\n *\t\t\t\t// Native DOM nodes are included directly in the rendered output.\n *\t\t\t\tchildNode\n *\t\t\t]\n *\t\t} );\n *\n * An entire {@link module:ui/viewcollection~ViewCollection} can be used as a child in the definition:\n *\n *\t\tconst collection = new ViewCollection();\n *\t\tcollection.add( someView );\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'p',\n *\n *\t\t\tchildren: collection\n *\t\t} );\n *\n * @typedef module:ui/template~TemplateDefinition\n * @type Object\n *\n * @property {String} tag See the template {@link module:ui/template~Template#tag} property.\n *\n * @property {Array.<module:ui/template~TemplateDefinition>} [children]\n * See the template {@link module:ui/template~Template#children} property.\n *\n * @property {Object.<String, module:ui/template~TemplateValueSchema>} [attributes]\n * See the template {@link module:ui/template~Template#attributes} property.\n *\n * @property {String|module:ui/template~TemplateValueSchema|Array.<String|module:ui/template~TemplateValueSchema>} [text]\n * See the template {@link module:ui/template~Template#text} property.\n *\n * @property {Object.<String, module:ui/template~TemplateListenerSchema>} [on]\n * See the template {@link module:ui/template~Template#eventListeners} property.\n */\nexport type TemplateDefinition = string |\n\tTemplate |\n\t{\n\t\ttag: string;\n\t\tattributes?: Record<string, TemplateValueSchema>;\n\t\tchildren?: Iterable<View | Node | Template | TemplateDefinition>;\n\t\ton?: Record<string, TemplateListenerSchema>;\n\t} |\n\t{\n\t\ttext: ArrayOrItem<TemplateSimpleValueSchema>;\n\t};\n\nexport type FalsyValue = false | null | undefined | '';\n\nexport type NamespacedValue<T> = { ns: string; value: T };\n\nexport type TemplateSimpleValue = string | boolean | number | null | undefined;\n\nexport type TemplateSimpleValueSchema = TemplateSimpleValue | AttributeBinding;\n\nexport type TemplateValueSchema = ArrayOrItem<\n\t\tTemplateSimpleValueSchema |\n\t\tNamespacedValue<TemplateSimpleValueSchema>\n\t> |\n\tRecord<string, TemplateSimpleValueSchema>;\n\nexport type TemplateListenerSchema = ArrayOrItem<ListenerBinding>;\n\n/**\n * Describes a value of an HTML element attribute or `textContent`. It allows combining multiple\n * data sources like static values and {@link module:utils/observablemixin~Observable} attributes.\n *\n * Also see:\n * * {@link module:ui/template~TemplateDefinition} to learn where to use it,\n * * {@link module:ui/template~Template.bind} to learn how to configure\n * {@link module:utils/observablemixin~Observable} attribute bindings,\n * * {@link module:ui/template~Template#render} to learn how to render a template,\n * * {@link module:ui/template~BindChain#to `to()`} and {@link module:ui/template~BindChain#if `if()`}\n * methods to learn more about bindings.\n *\n * Attribute values can be described in many different ways:\n *\n *\t\t// Bind helper will create bindings to attributes of the observable.\n *\t\tconst bind = Template.bind( observable, emitter );\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'p',\n *\t\t\tattributes: {\n *\t\t\t\t// A plain string schema.\n *\t\t\t\t'class': 'static-text',\n *\n *\t\t\t\t// An object schema, binds to the \"foo\" attribute of the\n *\t\t\t\t// observable and follows its value.\n *\t\t\t\t'class': bind.to( 'foo' ),\n *\n *\t\t\t\t// An array schema, combines the above.\n *\t\t\t\t'class': [\n *\t\t\t\t\t'static-text',\n *\t\t\t\t\tbind.to( 'bar', () => { ... } ),\n *\n * \t\t\t\t\t// Bindings can also be conditional.\n *\t\t\t\t\tbind.if( 'baz', 'class-when-baz-is-true' )\n *\t\t\t\t],\n *\n *\t\t\t\t// An array schema, with a custom namespace, e.g. useful for creating SVGs.\n *\t\t\t\t'class': {\n *\t\t\t\t\tns: 'http://ns.url',\n *\t\t\t\t\tvalue: [\n *\t\t\t\t\t\tbind.if( 'baz', 'value-when-true' ),\n *\t\t\t\t\t\t'static-text'\n *\t\t\t\t\t]\n *\t\t\t\t},\n *\n *\t\t\t\t// An object schema, specific for styles.\n *\t\t\t\tstyle: {\n *\t\t\t\t\tcolor: 'red',\n *\t\t\t\t\tbackgroundColor: bind.to( 'qux', () => { ... } )\n *\t\t\t\t}\n *\t\t\t}\n *\t\t} );\n *\n * Text nodes can also have complex values:\n *\n *\t\tconst bind = Template.bind( observable, emitter );\n *\n *\t\t// Will render a \"foo\" text node.\n *\t\tnew Template( {\n *\t\t\ttext: 'foo'\n *\t\t} );\n *\n *\t\t// Will render a \"static text: {observable.foo}\" text node.\n *\t\t// The text of the node will be updated as the \"foo\" attribute changes.\n *\t\tnew Template( {\n *\t\t\ttext: [\n *\t\t\t\t'static text: ',\n *\t\t\t\tbind.to( 'foo', () => { ... } )\n *\t\t\t]\n *\t\t} );\n *\n * @typedef module:ui/template~TemplateValueSchema\n * @type {Object|String|Array}\n */\n\n/**\n * Describes an event listener attached to an HTML element. Such listener can propagate DOM events\n * through an {@link module:utils/observablemixin~Observable} instance, execute custom callbacks\n * or both, if necessary.\n *\n * Also see:\n * * {@link module:ui/template~TemplateDefinition} to learn more about template definitions,\n * * {@link module:ui/template~BindChain#to `to()`} method to learn more about bindings.\n *\n * Check out different ways of attaching event listeners below:\n *\n *\t\t// Bind helper will propagate events through the observable.\n *\t\tconst bind = Template.bind( observable, emitter );\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'p',\n *\t\t\ton: {\n *\t\t\t\t// An object schema. The observable will fire the \"clicked\" event upon DOM \"click\".\n *\t\t\t\tclick: bind.to( 'clicked' )\n *\n *\t\t\t\t// An object schema. It will work for \"click\" event on \"a.foo\" children only.\n *\t\t\t\t'click@a.foo': bind.to( 'clicked' )\n *\n *\t\t\t\t// An array schema, makes the observable propagate multiple events.\n *\t\t\t\tclick: [\n *\t\t\t\t\tbind.to( 'clicked' ),\n *\t\t\t\t\tbind.to( 'executed' )\n *\t\t\t\t],\n *\n *\t\t\t\t// An array schema with a custom callback.\n *\t\t\t\t'click@a.foo': {\n *\t\t\t\t\tbind.to( 'clicked' ),\n *\t\t\t\t\tbind.to( evt => {\n *\t\t\t\t\t\tconsole.log( `${ evt.target } has been clicked!` );\n *\t\t\t\t\t} }\n *\t\t\t\t}\n *\t\t\t}\n *\t\t} );\n *\n * @typedef module:ui/template~TemplateListenerSchema\n * @type {Object|String|Array}\n */\n\n// `Template.bind( observable, emitter ).to( name )` is used in two different contexts:\n// - in `attribute` (or `text`) section of the `TemplateDefinition` - `name` is an observed property of the provided `observable`, or\n// - in `on` section - `name` is the event to be fired.\n//\n// In both cases, the returned type is `TemplateToBinding` which can be misleading.\n// Moreover, some forms of `to()` can be used in specific context only:\n// - `to( name, callback )` can only be used in `attribute` or `text`\n// - `to( callback )` can only be used in `on`.\n//\n// But note, that the fact it's `Template{To,If}Binding` is not relevant to the user.\n// The instances are both produced and consumed by this file only.\n// So let's invent some opaque types for outside use and only keep using `TemplateBinding` internally. They can be different for\n// `attribute` and `on` contexts.\n// To make them opaque, a non-exported symbol is used, so it's not possible to accidentally create an instance outside.\ndeclare const AttributeBindingSymbol: unique symbol;\ndeclare const ListenerBindingSymbol: unique symbol;\n\nexport interface AttributeBinding { _opaque: typeof AttributeBindingSymbol }\nexport interface ListenerBinding { _opaque: typeof ListenerBindingSymbol }\n\n/**\n * The return value of {@link ~Template.bind `Template.bind()`}. It provides `to()` and `if()`\n * methods to create the {@link module:utils/observablemixin~Observable observable} attribute and event bindings.\n *\n * @interface module:ui/template~BindChain\n */\nexport interface BindChain<TObservable> {\n\tto<TAttribute extends keyof TObservable & string>(\n\t\tattribute: TAttribute,\n\t\tcallback?: ( value: TObservable[ TAttribute ], node: Node ) => ( TemplateSimpleValue )\n\t): AttributeBinding;\n\tto( eventNameOrCallback: string | ( ( domEvent: Event ) => void ) ): ListenerBinding;\n\n\tif<TAttribute extends keyof TObservable & string>(\n\t\tattribute: TAttribute,\n\t\tvalueIfTrue?: unknown,\n\t\tcallback?: ( value: TObservable[ TAttribute ], node: Node ) => ( boolean | FalsyValue )\n\t): AttributeBinding;\n}\n\n/**\n * Binds an {@link module:utils/observablemixin~Observable observable} to either:\n *\n * * an HTML element attribute or a text node `textContent`, so it remains in sync with the observable\n * attribute as it changes,\n * * or an HTML element DOM event, so the DOM events are propagated through an observable.\n *\n * Some common use cases of `to()` bindings are presented below:\n *\n *\t\tconst bind = Template.bind( observable, emitter );\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'p',\n *\t\t\tattributes: {\n *\t\t\t\t// class=\"...\" attribute gets bound to `observable#a`\n *\t\t\t\tclass: bind.to( 'a' )\n *\t\t\t},\n *\t\t\tchildren: [\n *\t\t\t\t// <p>...</p> gets bound to observable#b; always `toUpperCase()`.\n *\t\t\t\t{\n *\t\t\t\t\ttext: bind.to( 'b', ( value, node ) => value.toUpperCase() )\n *\t\t\t\t}\n *\t\t\t],\n *\t\t\ton: {\n *\t\t\t\tclick: [\n *\t\t\t\t\t// An observable will fire \"clicked\" upon \"click\" in the DOM.\n *\t\t\t\t\tbind.to( 'clicked' ),\n *\n *\t\t\t\t\t// A custom callback will be executed upon \"click\" in the DOM.\n *\t\t\t\t\tbind.to( () => {\n *\t\t\t\t\t\t...\n *\t\t\t\t\t} )\n *\t\t\t\t]\n *\t\t\t}\n *\t\t} ).render();\n *\n * Learn more about using `to()` in the {@link module:ui/template~TemplateValueSchema} and\n * {@link module:ui/template~TemplateListenerSchema}.\n *\n * @method #to\n * @param {String|Function} eventNameOrFunctionOrAttribute An attribute name of\n * {@link module:utils/observablemixin~Observable} or a DOM event name or an event callback.\n * @param {Function} [callback] Allows for processing of the value. Accepts `Node` and `value` as arguments.\n * @returns {module:ui/template~TemplateBinding}\n */\n\n/**\n * Binds an {@link module:utils/observablemixin~Observable observable} to an HTML element attribute or a text\n * node `textContent` so it remains in sync with the observable attribute as it changes.\n *\n * Unlike {@link module:ui/template~BindChain#to}, it controls the presence of the attribute or `textContent`\n * depending on the \"falseness\" of an {@link module:utils/observablemixin~Observable} attribute.\n *\n *\t\tconst bind = Template.bind( observable, emitter );\n *\n *\t\tnew Template( {\n *\t\t\ttag: 'input',\n *\t\t\tattributes: {\n *\t\t\t\t// <input checked> when `observable#a` is not undefined/null/false/''\n *\t\t\t\t// <input> when `observable#a` is undefined/null/false\n *\t\t\t\tchecked: bind.if( 'a' )\n *\t\t\t},\n *\t\t\tchildren: [\n *\t\t\t\t{\n *\t\t\t\t\t// <input>\"b-is-not-set\"</input> when `observable#b` is undefined/null/false/''\n *\t\t\t\t\t// <input></input> when `observable#b` is not \"falsy\"\n *\t\t\t\t\ttext: bind.if( 'b', 'b-is-not-set', ( value, node ) => !value )\n *\t\t\t\t}\n *\t\t\t]\n *\t\t} ).render();\n *\n * Learn more about using `if()` in the {@link module:ui/template~TemplateValueSchema}.\n *\n * @method #if\n * @param {String} attribute An attribute name of {@link module:utils/observablemixin~Observable} used in the binding.\n * @param {String} [valueIfTrue] Value set when the {@link module:utils/observablemixin~Observable} attribute is not\n * undefined/null/false/'' (empty string).\n * @param {Function} [callback] Allows for processing of the value. Accepts `Node` and `value` as arguments.\n * @returns {module:ui/template~TemplateBinding}\n */\n\n/**\n * The {@link module:ui/template~Template#_renderNode} configuration.\n *\n * @private\n * @interface module:ui/template~RenderData\n */\ninterface RenderData {\n\tnode: HTMLElement | Text;\n\tintoFragment: boolean;\n\tisApplying: boolean;\n\trevertData?: RevertData;\n}\n\ninterface RevertData {\n\ttext?: string | null;\n\tchildren: Array<RevertData>;\n\tbindings: Array<Array<() => void>>;\n\tattributes: Record<string, string | null>;\n}\n\n/**\n * Tells {@link module:ui/template~Template#_renderNode} to render\n * children into `DocumentFragment` first and then append the fragment\n * to the parent element. It is a speed optimization.\n *\n * @member {Boolean} #intoFragment\n */\n\n/**\n * A node which is being rendered.\n *\n * @member {HTMLElement|Text} #node\n */\n\n/**\n * Indicates whether the {@module:ui/template~RenderNodeOptions#node} has\n * been provided by {@module:ui/template~Template#apply}.\n *\n * @member {Boolean} #isApplying\n */\n\n/**\n * An object storing the data that helps {@module:ui/template~Template#revert}\n * bringing back an element to its initial state, i.e. before\n * {@module:ui/template~Template#apply} was called.\n *\n * @member {Object} #revertData\n */\n","import api from \"!../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../node_modules/css-loader/dist/cjs.js!../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./globals.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-invalid-void-type */\n\n/**\n * @module ui/view\n */\n\nimport ViewCollection from './viewcollection';\nimport Template, { type BindChain, type TemplateDefinition } from './template';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tDomEmitterMixin,\n\tObservableMixin,\n\tisIterable,\n\ttype CollectionAddEvent,\n\ttype DecoratedMethodEvent,\n\ttype Locale,\n\ttype LocaleTranslate\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../theme/globals/globals.css';\n\n/**\n * The basic view class, which represents an HTML element created out of a\n * {@link module:ui/view~View#template}. Views are building blocks of the user interface and handle\n * interaction\n *\n * Views {@link module:ui/view~View#registerChild aggregate} children in\n * {@link module:ui/view~View#createCollection collections} and manage the life cycle of DOM\n * listeners e.g. by handling rendering and destruction.\n *\n * See the {@link module:ui/template~TemplateDefinition} syntax to learn more about shaping view\n * elements, attributes and listeners.\n *\n *\t\tclass SampleView extends View {\n *\t\t\tconstructor( locale ) {\n *\t\t\t\tsuper( locale );\n *\n *\t\t\t\tconst bind = this.bindTemplate;\n *\n *\t\t\t\t// Views define their interface (state) using observable attributes.\n *\t\t\t\tthis.set( 'elementClass', 'bar' );\n *\n *\t\t\t\tthis.setTemplate( {\n *\t\t\t\t\ttag: 'p',\n *\n *\t\t\t\t\t// The element of the view can be defined with its children.\n *\t\t\t\t\tchildren: [\n *\t\t\t\t\t\t'Hello',\n *\t\t\t\t\t\t{\n *\t\t\t\t\t\t\ttag: 'b',\n *\t\t\t\t\t\t\tchildren: [ 'world!' ]\n *\t\t\t\t\t\t}\n *\t\t\t\t\t],\n *\t\t\t\t\tattributes: {\n *\t\t\t\t\t\tclass: [\n *\t\t\t\t\t\t\t'foo',\n *\n *\t\t\t\t\t\t\t// Observable attributes control the state of the view in DOM.\n *\t\t\t\t\t\t\tbind.to( 'elementClass' )\n *\t\t\t\t\t\t]\n *\t\t\t\t\t},\n *\t\t\t\t\ton: {\n *\t\t\t\t\t\t// Views listen to DOM events and propagate them.\n *\t\t\t\t\t\tclick: bind.to( 'clicked' )\n *\t\t\t\t\t}\n *\t\t\t\t} );\n *\t\t\t}\n *\t\t}\n *\n *\t\tconst view = new SampleView( locale );\n *\n *\t\tview.render();\n *\n *\t\t// Append <p class=\"foo bar\">Hello<b>world</b></p> to the <body>\n *\t\tdocument.body.appendChild( view.element );\n *\n *\t\t// Change the class attribute to <p class=\"foo baz\">Hello<b>world</b></p>\n *\t\tview.elementClass = 'baz';\n *\n *\t\t// Respond to the \"click\" event in DOM by executing a custom action.\n *\t\tview.on( 'clicked', () => {\n *\t\t\tconsole.log( 'The view has been clicked!' );\n *\t\t} );\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class View<TElement extends HTMLElement = HTMLElement> extends DomEmitterMixin( ObservableMixin() ) {\n\tpublic element: TElement | null;\n\tpublic isRendered: boolean;\n\tpublic locale: Locale | undefined;\n\tpublic t: LocaleTranslate | undefined;\n\tpublic template?: Template;\n\tpublic viewUid?: string;\n\n\tprotected _viewCollections: Collection<ViewCollection>;\n\tprotected _unboundChildren: ViewCollection;\n\n\tprivate _bindTemplate?: BindChain<this>;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/view~View} class.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The localization services instance.\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * An HTML element of the view. `null` until {@link #render rendered}\n\t\t * from the {@link #template}.\n\t\t *\n\t\t *\t\tclass SampleView extends View {\n\t\t *\t\t\tconstructor() {\n\t\t *\t\t\t\tsuper();\n\t\t *\n\t\t *\t\t\t\t// A template instance the #element will be created from.\n\t\t *\t\t\t\tthis.setTemplate( {\n\t\t *\t\t\t\t\ttag: 'p'\n\t\t *\n\t\t *\t\t\t\t\t// ...\n\t\t *\t\t\t\t} );\n\t\t *\t\t\t}\n\t\t *\t\t}\n\t\t *\n\t\t *\t\tconst view = new SampleView();\n\t\t *\n\t\t *\t\t// Renders the #template.\n\t\t *\t\tview.render();\n\t\t *\n\t\t *\t\t// Append the HTML element of the view to <body>.\n\t\t *\t\tdocument.body.appendChild( view.element );\n\t\t *\n\t\t * **Note**: The element of the view can also be assigned directly:\n\t\t *\n\t\t *\t\tview.element = document.querySelector( '#my-container' );\n\t\t *\n\t\t * @member {HTMLElement}\n\t\t */\n\t\tthis.element = null;\n\n\t\t/**\n\t\t * Set `true` when the view has already been {@link module:ui/view~View#render rendered}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} #isRendered\n\t\t */\n\t\tthis.isRendered = false;\n\n\t\t/**\n\t\t * A set of tools to localize the user interface.\n\t\t *\n\t\t * Also see {@link module:core/editor/editor~Editor#locale}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/locale~Locale}\n\t\t */\n\t\tthis.locale = locale;\n\n\t\t/**\n\t\t * Shorthand for {@link module:utils/locale~Locale#t}.\n\t\t *\n\t\t * Note: If {@link #locale} instance hasn't been passed to the view this method may not\n\t\t * be available.\n\t\t *\n\t\t * @see module:utils/locale~Locale#t\n\t\t * @method\n\t\t */\n\t\tthis.t = locale && locale.t;\n\n\t\t/**\n\t\t * Collections registered with {@link #createCollection}.\n\t\t *\n\t\t * @protected\n\t\t * @member {Set.<module:ui/viewcollection~ViewCollection>}\n\t\t */\n\t\tthis._viewCollections = new Collection();\n\n\t\t/**\n\t\t * A collection of view instances, which have been added directly\n\t\t * into the {@link module:ui/template~Template#children}.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._unboundChildren = this.createCollection();\n\n\t\t// Pass parent locale to its children.\n\t\tthis._viewCollections.on<CollectionAddEvent<View>>( 'add', ( evt, collection ) => {\n\t\t\tcollection.locale = locale;\n\t\t\tcollection.t = locale && locale.t;\n\t\t} );\n\n\t\t/**\n\t\t * Template of this view. It provides the {@link #element} representing\n\t\t * the view in DOM, which is {@link #render rendered}.\n\t\t *\n\t\t * @member {module:ui/template~Template} #template\n\t\t */\n\n\t\t/**\n\t\t * Cached {@link module:ui/template~BindChain bind chain} object created by the\n\t\t * {@link #template}. See {@link #bindTemplate}.\n\t\t *\n\t\t * @private\n\t\t * @member {Object} #_bindTemplate\n\t\t */\n\n\t\tthis.decorate( 'render' );\n\t}\n\n\t/**\n\t * Shorthand for {@link module:ui/template~Template.bind}, a binding\n\t * {@link module:ui/template~BindChain interface} pre–configured for the view instance.\n\t *\n\t * It provides {@link module:ui/template~BindChain#to `to()`} and\n\t * {@link module:ui/template~BindChain#if `if()`} methods that initialize bindings with\n\t * observable attributes and attach DOM listeners.\n\t *\n\t *\t\tclass SampleView extends View {\n\t *\t\t\tconstructor( locale ) {\n\t *\t\t\t\tsuper( locale );\n\t *\n\t *\t\t\t\tconst bind = this.bindTemplate;\n\t *\n\t *\t\t\t\t// These {@link module:utils/observablemixin~Observable observable} attributes will control\n\t *\t\t\t\t// the state of the view in DOM.\n\t *\t\t\t\tthis.set( {\n\t *\t\t\t\t\telementClass: 'foo',\n\t *\t\t\t\t \tisEnabled: true\n\t *\t\t\t\t } );\n\t *\n\t *\t\t\t\tthis.setTemplate( {\n\t *\t\t\t\t\ttag: 'p',\n\t *\n\t *\t\t\t\t\tattributes: {\n\t *\t\t\t\t\t\t// The class HTML attribute will follow elementClass\n\t *\t\t\t\t\t\t// and isEnabled view attributes.\n\t *\t\t\t\t\t\tclass: [\n\t *\t\t\t\t\t\t\tbind.to( 'elementClass' )\n\t *\t\t\t\t\t\t\tbind.if( 'isEnabled', 'present-when-enabled' )\n\t *\t\t\t\t\t\t]\n\t *\t\t\t\t\t},\n\t *\n\t *\t\t\t\t\ton: {\n\t *\t\t\t\t\t\t// The view will fire the \"clicked\" event upon clicking <p> in DOM.\n\t *\t\t\t\t\t\tclick: bind.to( 'clicked' )\n\t *\t\t\t\t\t}\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t * @method #bindTemplate\n\t */\n\tpublic get bindTemplate(): BindChain<this> {\n\t\tif ( this._bindTemplate ) {\n\t\t\treturn this._bindTemplate;\n\t\t}\n\n\t\treturn ( this._bindTemplate = Template.bind( this, this ) );\n\t}\n\n\t/**\n\t * Creates a new collection of views, which can be used as\n\t * {@link module:ui/template~Template#children} of this view.\n\t *\n\t *\t\tclass SampleView extends View {\n\t *\t\t\tconstructor( locale ) {\n\t *\t\t\t\tsuper( locale );\n\t *\n\t *\t\t\t\tconst child = new ChildView( locale );\n\t *\t\t\t\tthis.items = this.createCollection( [ child ] );\n \t *\n\t *\t\t\t\tthis.setTemplate( {\n\t *\t\t\t\t\ttag: 'p',\n\t *\n\t *\t\t\t\t\t// `items` collection will render here.\n\t *\t\t\t\t\tchildren: this.items\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t *\t\tconst view = new SampleView( locale );\n\t *\t\tview.render();\n\t *\n\t *\t\t// It will append <p><child#element></p> to the <body>.\n\t *\t\tdocument.body.appendChild( view.element );\n\t *\n\t * @param {Iterable.<module:ui/view~View>} [views] Initial views of the collection.\n\t * @returns {module:ui/viewcollection~ViewCollection} A new collection of view instances.\n\t */\n\tpublic createCollection( views?: Iterable<View> ): ViewCollection {\n\t\tconst collection = new ViewCollection( views );\n\n\t\tthis._viewCollections.add( collection );\n\n\t\treturn collection;\n\t}\n\n\t/**\n\t * Registers a new child view under the view instance. Once registered, a child\n\t * view is managed by its parent, including {@link #render rendering}\n\t * and {@link #destroy destruction}.\n\t *\n\t * To revert this, use {@link #deregisterChild}.\n\t *\n\t *\t\tclass SampleView extends View {\n\t *\t\t\tconstructor( locale ) {\n\t *\t\t\t\tsuper( locale );\n\t *\n\t *\t\t\t\tthis.childA = new SomeChildView( locale );\n\t *\t\t\t\tthis.childB = new SomeChildView( locale );\n\t *\n\t *\t\t\t\tthis.setTemplate( { tag: 'p' } );\n\t *\n\t *\t\t\t\t// Register the children.\n\t *\t\t\t\tthis.registerChild( [ this.childA, this.childB ] );\n\t *\t\t\t}\n\t *\n\t *\t\t\trender() {\n\t *\t\t\t\tsuper.render();\n\t *\n\t *\t\t\t\tthis.element.appendChild( this.childA.element );\n\t *\t\t\t\tthis.element.appendChild( this.childB.element );\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t *\t\tconst view = new SampleView( locale );\n\t *\n\t *\t\tview.render();\n\t *\n\t *\t\t// Will append <p><childA#element><b></b><childB#element></p>.\n\t *\t\tdocument.body.appendChild( view.element );\n\t *\n\t * **Note**: There's no need to add child views if they're already referenced in the\n\t * {@link #template}:\n\t *\n\t *\t\tclass SampleView extends View {\n\t *\t\t\tconstructor( locale ) {\n\t *\t\t\t\tsuper( locale );\n\t *\n\t *\t\t\t\tthis.childA = new SomeChildView( locale );\n\t *\t\t\t\tthis.childB = new SomeChildView( locale );\n\t *\n\t *\t\t\t\tthis.setTemplate( {\n\t *\t\t\t\t\ttag: 'p',\n\t *\n \t *\t\t\t\t\t// These children will be added automatically. There's no\n \t *\t\t\t\t\t// need to call {@link #registerChild} for any of them.\n\t *\t\t\t\t\tchildren: [ this.childA, this.childB ]\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\n\t *\t\t\t// ...\n\t *\t\t}\n\t *\n\t * @param {module:ui/view~View|Iterable.<module:ui/view~View>} children Children views to be registered.\n\t */\n\tpublic registerChild( children: View | Iterable<View> ): void {\n\t\tif ( !isIterable( children ) ) {\n\t\t\tchildren = [ children ];\n\t\t}\n\n\t\tfor ( const child of children ) {\n\t\t\tthis._unboundChildren.add( child );\n\t\t}\n\t}\n\n\t/**\n\t * The opposite of {@link #registerChild}. Removes a child view from this view instance.\n\t * Once removed, the child is no longer managed by its parent, e.g. it can safely\n\t * become a child of another parent view.\n\t *\n\t * @see #registerChild\n\t * @param {module:ui/view~View|Iterable.<module:ui/view~View>} children Child views to be removed.\n\t */\n\tpublic deregisterChild( children: View | Iterable<View> ): void {\n\t\tif ( !isIterable( children ) ) {\n\t\t\tchildren = [ children ];\n\t\t}\n\n\t\tfor ( const child of children ) {\n\t\t\tthis._unboundChildren.remove( child );\n\t\t}\n\t}\n\n\t/**\n\t * Sets the {@link #template} of the view with with given definition.\n\t *\n\t * A shorthand for:\n\t *\n\t *\t\tview.setTemplate( definition );\n\t *\n\t * @param {module:ui/template~TemplateDefinition} definition Definition of view's template.\n\t */\n\tpublic setTemplate( definition: TemplateDefinition ): void {\n\t\tthis.template = new Template( definition );\n\t}\n\n\t/**\n\t * {@link module:ui/template~Template.extend Extends} the {@link #template} of the view with\n\t * with given definition.\n\t *\n\t * A shorthand for:\n\t *\n\t *\t\tTemplate.extend( view.template, definition );\n\t *\n\t * **Note**: Is requires the {@link #template} to be already set. See {@link #setTemplate}.\n\t *\n\t * @param {module:ui/template~TemplateDefinition} definition Definition which\n\t * extends the {@link #template}.\n\t */\n\tpublic extendTemplate( definition: Partial<TemplateDefinition> ): void {\n\t\tTemplate.extend( this.template!, definition );\n\t}\n\n\t/**\n\t * Recursively renders the view.\n\t *\n\t * Once the view is rendered:\n\t * * the {@link #element} becomes an HTML element out of {@link #template},\n\t * * the {@link #isRendered} flag is set `true`.\n\t *\n\t * **Note**: The children of the view:\n\t * * defined directly in the {@link #template}\n\t * * residing in collections created by the {@link #createCollection} method,\n\t * * and added by {@link #registerChild}\n\t * are also rendered in the process.\n\t *\n\t * In general, `render()` method is the right place to keep the code which refers to the\n\t * {@link #element} and should be executed at the very beginning of the view's life cycle.\n\t *\n\t * It is possible to {@link module:ui/template~Template.extend} the {@link #template} before\n\t * the view is rendered. To allow an early customization of the view (e.g. by its parent),\n\t * such references should be done in `render()`.\n\t *\n\t *\t\tclass SampleView extends View {\n\t *\t\t\tconstructor() {\n\t *\t\t\t\tthis.setTemplate( {\n\t *\t\t\t\t\t// ...\n\t *\t\t\t\t} );\n\t *\t\t\t},\n\t *\n\t *\t\t\trender() {\n\t *\t\t\t\t// View#element becomes available.\n\t *\t\t\t\tsuper.render();\n\t *\n\t *\t\t\t\t// The \"scroll\" listener depends on #element.\n\t *\t\t\t\tthis.listenTo( window, 'scroll', () => {\n\t *\t\t\t\t\t// A reference to #element would render the #template and make it non-extendable.\n\t *\t\t\t\t\tif ( window.scrollY > 0 ) {\n\t *\t\t\t\t\t\tthis.element.scrollLeft = 100;\n\t *\t\t\t\t\t} else {\n\t *\t\t\t\t\t\tthis.element.scrollLeft = 0;\n\t *\t\t\t\t\t}\n\t *\t\t\t\t} );\n\t *\t\t\t}\n\t *\t\t}\n\t *\n\t *\t\tconst view = new SampleView();\n\t *\n\t *\t\t// Let's customize the view before it gets rendered.\n\t *\t\tview.extendTemplate( {\n\t *\t\t\tattributes: {\n\t *\t\t\t\tclass: [\n\t *\t\t\t\t\t'additional-class'\n\t *\t\t\t\t]\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t *\t\t// Late rendering allows customization of the view.\n\t *\t\tview.render();\n\t */\n\tpublic render(): void {\n\t\tif ( this.isRendered ) {\n\t\t\t/**\n\t\t\t * This View has already been rendered.\n\t\t\t *\n\t\t\t * @error ui-view-render-already-rendered\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'ui-view-render-already-rendered', this );\n\t\t}\n\n\t\t// Render #element of the view.\n\t\tif ( this.template ) {\n\t\t\tthis.element = this.template.render() as TElement;\n\n\t\t\t// Auto–register view children from #template.\n\t\t\tthis.registerChild( this.template.getViews() );\n\t\t}\n\n\t\tthis.isRendered = true;\n\t}\n\n\t/**\n\t * Recursively destroys the view instance and child views added by {@link #registerChild} and\n\t * residing in collections created by the {@link #createCollection}.\n\t *\n\t * Destruction disables all event listeners:\n\t * * created on the view, e.g. `view.on( 'event', () => {} )`,\n\t * * defined in the {@link #template} for DOM events.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\n\t\tthis._viewCollections.map( c => c.destroy() );\n\n\t\t// Template isn't obligatory for views.\n\t\tif ( this.template && ( this.template as any )._revertData ) {\n\t\t\tthis.template.revert( this.element! );\n\t\t}\n\t}\n\n\t/**\n\t * Event fired by the {@link #render} method. Actual rendering is executed as a listener to\n\t * this event with the default priority.\n\t *\n\t * See {@link module:utils/observablemixin~ObservableMixin#decorate} for more information and samples.\n\t *\n\t * @event render\n\t */\n}\n\nexport type UIViewRenderEvent = DecoratedMethodEvent<View, 'render'>;\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./balloonpanel.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/panel/balloon/balloonpanelview\n */\n\nimport View from '../../view';\n\nimport {\n\tgetOptimalPosition,\n\tglobal,\n\tisRange,\n\ttoUnit,\n\ttype Locale,\n\ttype ObservableChangeEvent,\n\ttype PositionOptions,\n\ttype PositioningFunction,\n\ttype Rect\n} from '@ckeditor/ckeditor5-utils';\n\nimport { isElement } from 'lodash-es';\n\nimport type ViewCollection from '../../viewcollection';\n\nimport '../../../theme/components/panel/balloonpanel.css';\n\nconst toPx = toUnit( 'px' );\nconst defaultLimiterElement = global.document.body;\n\n/**\n * The balloon panel view class.\n *\n * A floating container which can\n * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#pin pin} to any\n * {@link module:utils/dom/position~Options#target target} in the DOM and remain in that position\n * e.g. when the web page is scrolled.\n *\n * The balloon panel can be used to display contextual, non-blocking UI like forms, toolbars and\n * the like in its {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#content} view\n * collection.\n *\n * There is a number of {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}\n * that the balloon can use, automatically switching from one to another when the viewport space becomes\n * scarce to keep the balloon visible to the user as long as it is possible. The balloon will also\n * accept any custom position set provided by the user compatible with the\n * {@link module:utils/dom/position~Options options}.\n *\n *\t\tconst panel = new BalloonPanelView( locale );\n *\t\tconst childView = new ChildView();\n *\t\tconst positions = BalloonPanelView.defaultPositions;\n *\n *\t\tpanel.render();\n *\n *\t\t// Add a child view to the panel's content collection.\n *\t\tpanel.content.add( childView );\n *\n *\t\t// Start pinning the panel to an element with the \"target\" id DOM.\n *\t\t// The balloon will remain pinned until unpin() is called.\n *\t\tpanel.pin( {\n *\t\t\ttarget: document.querySelector( '#target' ),\n *\t\t\tpositions: [\n *\t\t\t\tpositions.northArrowSouth,\n *\t\t\t\tpositions.southArrowNorth\n *\t\t\t]\n *\t\t} );\n *\n * @extends module:ui/view~View\n */\nexport default class BalloonPanelView extends View {\n\tpublic readonly content: ViewCollection;\n\n\tdeclare public top: number;\n\tdeclare public left: number;\n\tdeclare public position: 'arrow_nw' | 'arrow_ne' | 'arrow_sw' | 'arrow_se';\n\tdeclare public isVisible: boolean;\n\tdeclare public withArrow: boolean;\n\tdeclare public class: string | undefined;\n\n\tprivate _pinWhenIsVisibleCallback: ( () => void ) | null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * The absolute top position of the balloon panel in pixels.\n\t\t *\n\t\t * @observable\n\t\t * @default 0\n\t\t * @member {Number} #top\n\t\t */\n\t\tthis.set( 'top', 0 );\n\n\t\t/**\n\t\t * The absolute left position of the balloon panel in pixels.\n\t\t *\n\t\t * @observable\n\t\t * @default 0\n\t\t * @member {Number} #left\n\t\t */\n\t\tthis.set( 'left', 0 );\n\n\t\t/**\n\t\t * The balloon panel's current position. The position name is reflected in the CSS class set\n\t\t * to the balloon, i.e. `.ck-balloon-panel_arrow_nw` for the \"arrow_nw\" position. The class\n\t\t * controls the minor aspects of the balloon's visual appearance like the placement\n\t\t * of an {@link #withArrow arrow}. To support a new position, an additional CSS must be created.\n\t\t *\n\t\t * Default position names correspond with\n\t\t * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n\t\t *\n\t\t * See the {@link #attachTo} and {@link #pin} methods to learn about custom balloon positions.\n\t\t *\n\t\t * @observable\n\t\t * @default 'arrow_nw'\n\t\t * @member {'arrow_nw'|'arrow_ne'|'arrow_sw'|'arrow_se'} #position\n\t\t */\n\t\tthis.set( 'position', 'arrow_nw' );\n\n\t\t/**\n\t\t * Controls whether the balloon panel is visible or not.\n\t\t *\n\t\t * @observable\n\t\t * @default false\n\t\t * @member {Boolean} #isVisible\n\t\t */\n\t\tthis.set( 'isVisible', false );\n\n\t\t/**\n\t\t * Controls whether the balloon panel has an arrow. The presence of the arrow\n\t\t * is reflected in the `ck-balloon-panel_with-arrow` CSS class.\n\t\t *\n\t\t * @observable\n\t\t * @default true\n\t\t * @member {Boolean} #withArrow\n\t\t */\n\t\tthis.set( 'withArrow', true );\n\n\t\t/**\n\t\t * An additional CSS class added to the {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #class\n\t\t */\n\t\tthis.set( 'class', undefined );\n\n\t\t/**\n\t\t * A callback that starts pinning the panel when {@link #isVisible} gets\n\t\t * `true`. Used by {@link #pin}.\n\t\t *\n\t\t * @private\n\t\t * @member {Function} #_pinWhenIsVisibleCallback\n\t\t */\n\t\tthis._pinWhenIsVisibleCallback = null;\n\n\t\t/**\n\t\t * A collection of the child views that creates the balloon panel contents.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.content = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-balloon-panel',\n\t\t\t\t\tbind.to( 'position', value => `ck-balloon-panel_${ value }` ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-balloon-panel_visible' ),\n\t\t\t\t\tbind.if( 'withArrow', 'ck-balloon-panel_with-arrow' ),\n\t\t\t\t\tbind.to( 'class' )\n\t\t\t\t],\n\n\t\t\t\tstyle: {\n\t\t\t\t\ttop: bind.to( 'top', toPx ),\n\t\t\t\t\tleft: bind.to( 'left', toPx )\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tchildren: this.content\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the panel.\n\t *\n\t * See {@link #isVisible}.\n\t */\n\tpublic show(): void {\n\t\tthis.isVisible = true;\n\t}\n\n\t/**\n\t * Hides the panel.\n\t *\n\t * See {@link #isVisible}.\n\t */\n\tpublic hide(): void {\n\t\tthis.isVisible = false;\n\t}\n\n\t/**\n\t * Attaches the panel to a specified {@link module:utils/dom/position~Options#target} with a\n\t * smart positioning heuristics that chooses from available positions to make sure the panel\n\t * is visible to the user i.e. within the limits of the viewport.\n\t *\n\t * This method accepts configuration {@link module:utils/dom/position~Options options}\n\t * to set the `target`, optional `limiter` and `positions` the balloon should choose from.\n\t *\n\t *\t\tconst panel = new BalloonPanelView( locale );\n\t *\t\tconst positions = BalloonPanelView.defaultPositions;\n\t *\n\t *\t\tpanel.render();\n\t *\n\t *\t\t// Attach the panel to an element with the \"target\" id DOM.\n\t *\t\tpanel.attachTo( {\n\t *\t\t\ttarget: document.querySelector( '#target' ),\n\t *\t\t\tpositions: [\n\t *\t\t\t\tpositions.northArrowSouth,\n\t *\t\t\t\tpositions.southArrowNorth\n\t *\t\t\t]\n\t *\t\t} );\n\t *\n\t * **Note**: Attaching the panel will also automatically {@link #show} it.\n\t *\n\t * **Note**: An attached panel will not follow its target when the window is scrolled or resized.\n\t * See the {@link #pin} method for a more permanent positioning strategy.\n\t *\n\t * @param {module:utils/dom/position~Options} options Positioning options compatible with\n\t * {@link module:utils/dom/position~getOptimalPosition}. Default `positions` array is\n\t * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n\t */\n\tpublic attachTo( options: Partial<PositionOptions> ): void {\n\t\tthis.show();\n\n\t\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\t\tconst positionOptions = Object.assign( {}, {\n\t\t\telement: this.element,\n\t\t\tpositions: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthMiddleWest,\n\t\t\t\tdefaultPositions.southArrowNorthMiddleEast,\n\t\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\t\tdefaultPositions.northArrowSouth,\n\t\t\t\tdefaultPositions.northArrowSouthMiddleWest,\n\t\t\t\tdefaultPositions.northArrowSouthMiddleEast,\n\t\t\t\tdefaultPositions.northArrowSouthWest,\n\t\t\t\tdefaultPositions.northArrowSouthEast,\n\t\t\t\tdefaultPositions.viewportStickyNorth\n\t\t\t],\n\t\t\tlimiter: defaultLimiterElement,\n\t\t\tfitInViewport: true\n\t\t}, options ) as PositionOptions;\n\n\t\tconst optimalPosition = BalloonPanelView._getOptimalPosition( positionOptions );\n\n\t\t// Usually browsers make some problems with super accurate values like 104.345px\n\t\t// so it is better to use int values.\n\t\tconst left = parseInt( optimalPosition.left as any );\n\t\tconst top = parseInt( optimalPosition.top as any );\n\n\t\tconst position = optimalPosition.name as this[ 'position' ];\n\t\tconst config: { withArrow?: boolean } = optimalPosition.config || {};\n\t\tconst { withArrow = true } = config;\n\n\t\tthis.top = top;\n\t\tthis.left = left;\n\t\tthis.position = position;\n\t\tthis.withArrow = withArrow;\n\t}\n\n\t/**\n\t * Works the same way as the {@link #attachTo} method except that the position of the panel is\n\t * continuously updated when:\n\t *\n\t * * any ancestor of the {@link module:utils/dom/position~Options#target}\n\t * or {@link module:utils/dom/position~Options#limiter} is scrolled,\n\t * * the browser window gets resized or scrolled.\n\t *\n\t * Thanks to that, the panel always sticks to the {@link module:utils/dom/position~Options#target}\n\t * and is immune to the changing environment.\n\t *\n\t *\t\tconst panel = new BalloonPanelView( locale );\n\t *\t\tconst positions = BalloonPanelView.defaultPositions;\n\t *\n\t *\t\tpanel.render();\n\t *\n\t *\t\t// Pin the panel to an element with the \"target\" id DOM.\n\t *\t\tpanel.pin( {\n\t *\t\t\ttarget: document.querySelector( '#target' ),\n\t *\t\t\tpositions: [\n\t *\t\t\t\tpositions.northArrowSouth,\n\t *\t\t\t\tpositions.southArrowNorth\n\t *\t\t\t]\n\t *\t\t} );\n\t *\n\t * To leave the pinned state, use the {@link #unpin} method.\n\t *\n\t * **Note**: Pinning the panel will also automatically {@link #show} it.\n\t *\n\t * @param {module:utils/dom/position~Options} options Positioning options compatible with\n\t * {@link module:utils/dom/position~getOptimalPosition}. Default `positions` array is\n\t * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n\t */\n\tpublic pin( options: Partial<PositionOptions> ): void {\n\t\tthis.unpin();\n\n\t\tthis._pinWhenIsVisibleCallback = () => {\n\t\t\tif ( this.isVisible ) {\n\t\t\t\tthis._startPinning( options );\n\t\t\t} else {\n\t\t\t\tthis._stopPinning();\n\t\t\t}\n\t\t};\n\n\t\tthis._startPinning( options );\n\n\t\t// Control the state of the listeners depending on whether the panel is visible\n\t\t// or not.\n\t\t// TODO: Use on() (https://github.com/ckeditor/ckeditor5-utils/issues/144).\n\t\tthis.listenTo<ObservableChangeEvent>( this, 'change:isVisible', this._pinWhenIsVisibleCallback );\n\t}\n\n\t/**\n\t * Stops pinning the panel, as set up by {@link #pin}.\n\t */\n\tpublic unpin(): void {\n\t\tif ( this._pinWhenIsVisibleCallback ) {\n\t\t\t// Deactivate listeners attached by pin().\n\t\t\tthis._stopPinning();\n\n\t\t\t// Deactivate the panel pin() control logic.\n\t\t\t// TODO: Use off() (https://github.com/ckeditor/ckeditor5-utils/issues/144).\n\t\t\tthis.stopListening( this, 'change:isVisible', this._pinWhenIsVisibleCallback );\n\n\t\t\tthis._pinWhenIsVisibleCallback = null;\n\n\t\t\tthis.hide();\n\t\t}\n\t}\n\n\t/**\n\t * Starts managing the pinned state of the panel. See {@link #pin}.\n\t *\n\t * @private\n\t * @param {module:utils/dom/position~Options} options Positioning options compatible with\n\t * {@link module:utils/dom/position~getOptimalPosition}.\n\t */\n\tprivate _startPinning( options: Partial<PositionOptions> ) {\n\t\tthis.attachTo( options );\n\n\t\tconst targetElement = getDomElement( options.target );\n\t\tconst limiterElement = options.limiter ? getDomElement( options.limiter ) : defaultLimiterElement;\n\n\t\t// Then we need to listen on scroll event of eny element in the document.\n\t\tthis.listenTo( global.document, 'scroll', ( evt, domEvt ) => {\n\t\t\tconst scrollTarget = domEvt.target as Element;\n\n\t\t\t// The position needs to be updated if the positioning target is within the scrolled element.\n\t\t\tconst isWithinScrollTarget = targetElement && scrollTarget.contains( targetElement );\n\n\t\t\t// The position needs to be updated if the positioning limiter is within the scrolled element.\n\t\t\tconst isLimiterWithinScrollTarget = limiterElement && scrollTarget.contains( limiterElement );\n\n\t\t\t// The positioning target and/or limiter can be a Rect, object etc..\n\t\t\t// There's no way to optimize the listener then.\n\t\t\tif ( isWithinScrollTarget || isLimiterWithinScrollTarget || !targetElement || !limiterElement ) {\n\t\t\t\tthis.attachTo( options );\n\t\t\t}\n\t\t}, { useCapture: true } );\n\n\t\t// We need to listen on window resize event and update position.\n\t\tthis.listenTo( global.window, 'resize', () => {\n\t\t\tthis.attachTo( options );\n\t\t} );\n\t}\n\n\t/**\n\t * Stops managing the pinned state of the panel. See {@link #pin}.\n\t *\n\t * @private\n\t */\n\tprivate _stopPinning(): void {\n\t\tthis.stopListening( global.document, 'scroll' );\n\t\tthis.stopListening( global.window, 'resize' );\n\t}\n\n\t/**\n\t * A side offset of the arrow tip from the edge of the balloon. Controlled by CSS.\n\t *\n\t *\t\t ┌───────────────────────┐\n\t *\t\t │                       │\n\t *\t\t │         Balloon       │\n\t *\t\t │         Content       │\n\t *\t\t │                       │\n\t *\t\t └──+    +───────────────┘\n\t *\t\t |   \\  /\n\t *\t\t |    \\/\n\t *\t\t>┼─────┼< ─────────────────────── side offset\n\t *\n\t *\n\t * @default 25\n\t * @member {Number} module:ui/panel/balloon/balloonpanelview~BalloonPanelView.arrowSideOffset\n\t */\n\tpublic static arrowSideOffset = 25;\n\n\t/**\n\t * A height offset of the arrow from the edge of the balloon. Controlled by CSS.\n\t *\n\t *\t\t ┌───────────────────────┐\n\t *\t\t │                       │\n\t *\t\t │         Balloon       │\n\t *\t\t │         Content       │      ╱-- arrow height offset\n\t *\t\t │                       │      V\n\t *\t\t └──+    +───────────────┘ --- ─┼───────\n\t *\t\t     \\  /                       │\n\t *\t\t      \\/                        │\n\t *\t\t────────────────────────────────┼───────\n\t *\t\t                                ^\n\t *\n\t *\n\t *\t\t>┼────┼<  arrow height offset\n\t *\t\t │    │\n\t *\t\t │    ┌────────────────────────┐\n\t *\t\t │    │                        │\n\t *\t\t │   ╱                         │\n\t *\t\t │ ╱            Balloon        │\n\t *\t\t │ ╲            Content        │\n\t *\t\t │   ╲                         │\n\t *\t\t │    │                        │\n\t *\t\t │    └────────────────────────┘\n\t *\n\t *\n\t * @default 10\n\t * @member {Number} module:ui/panel/balloon/balloonpanelview~BalloonPanelView.arrowHeightOffset\n\t*/\n\tpublic static arrowHeightOffset = 10;\n\n\t/**\n\t * A vertical offset of the balloon panel from the edge of the viewport if sticky.\n\t * It helps in accessing toolbar buttons underneath the balloon panel.\n\t *\n\t *\t\t  ┌───────────────────────────────────────────────────┐\n\t *\t\t  │                      Target                       │\n\t *\t\t  │                                                   │\n\t *\t\t  │                            /── vertical offset    │\n\t *\t\t┌─────────────────────────────V─────────────────────────┐\n\t *\t\t│ Toolbar            ┌─────────────┐                    │\n\t *\t\t├────────────────────│   Balloon   │────────────────────┤\n\t *\t\t│ │                  └─────────────┘                  │ │\n\t *\t\t│ │                                                   │ │\n\t *\t\t│ │                                                   │ │\n\t *\t\t│ │                                                   │ │\n\t *\t\t│ └───────────────────────────────────────────────────┘ │\n\t *\t\t│                        Viewport                       │\n\t *\t\t└───────────────────────────────────────────────────────┘\n\t *\n\t * @default 20\n\t * @member {Number} module:ui/panel/balloon/balloonpanelview~BalloonPanelView.stickyVerticalOffset\n\t */\n\tpublic static stickyVerticalOffset = 20;\n\n\t/**\n\t * Function used to calculate the optimal position for the balloon.\n\t *\n\t * @protected\n\t * @member {Function} module:ui/panel/balloon/balloonpanelview~BalloonPanelView._getOptimalPosition\n\t */\n\tprivate static _getOptimalPosition = getOptimalPosition;\n\n\t/**\n\t * A default set of positioning functions used by the balloon panel view\n\t * when attaching using the {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#attachTo} method.\n\t *\n\t * The available positioning functions are as follows:\n\t *\n\t *\n\t *\n\t * **North west**\n\t *\n\t * * `northWestArrowSouthWest`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t V\n\t *\t\t [ Target ]\n\t *\n\t * * `northWestArrowSouthMiddleWest`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t    V\n\t *\t\t    [ Target ]\n\t *\n\t * * `northWestArrowSouth`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t         V\n\t *\t\t         [ Target ]\n\t *\n\t * * `northWestArrowSouthMiddleEast`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t             V\n\t *\t\t             [ Target ]\n\t *\n\t * * `northWestArrowSouthEast`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t                 V\n\t *\t\t                 [ Target ]\n\t *\n\t *\n\t *\n\t * **North**\n\t *\n\t * * `northArrowSouthWest`\n\t *\n\t *\t\t    +-----------------+\n\t *\t\t    |     Balloon     |\n\t *\t\t    +-----------------+\n\t *\t\t     V\n\t *\t\t[ Target ]\n\t *\n\t * * `northArrowSouthMiddleWest`\n\t *\n\t *\t\t +-----------------+\n\t *\t\t |     Balloon     |\n\t *\t\t +-----------------+\n\t *\t\t     V\n\t *\t\t[ Target ]\n\t *\n\t * * `northArrowSouth`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t         V\n\t *\t\t    [ Target ]\n\t *\n\t * * `northArrowSouthMiddleEast`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t             V\n\t *\t\t        [ Target ]\n\t *\n\t * * `northArrowSouthEast`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t                V\n\t *\t\t           [ Target ]\n\t *\n\t * **North east**\n\t *\n\t * * `northEastArrowSouthWest`\n\t *\n\t *\t\t        +-----------------+\n\t *\t\t        |     Balloon     |\n\t *\t\t        +-----------------+\n\t *\t\t         V\n\t *\t\t[ Target ]\n\t *\n\t *\n\t * * `northEastArrowSouthMiddleWest`\n\t *\n\t *\t\t     +-----------------+\n\t *\t\t     |     Balloon     |\n\t *\t\t     +-----------------+\n\t *\t\t         V\n\t *\t\t[ Target ]\n\t *\n\t * * `northEastArrowSouth`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t         V\n\t *\t\t[ Target ]\n\t *\n\t * * `northEastArrowSouthMiddleEast`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t             V\n\t *\t\t    [ Target ]\n\t *\n\t * * `northEastArrowSouthEast`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t                 V\n\t *\t\t        [ Target ]\n\t *\n\t *\n\t *\n\t * **South**\n\t *\n\t *\n\t * * `southArrowNorthWest`\n\t *\n\t *\t\t[ Target ]\n\t *\t\t     ^\n\t *\t\t    +-----------------+\n\t *\t\t    |     Balloon     |\n\t *\t\t    +-----------------+\n\t *\n\t * * `southArrowNorthMiddleWest`\n\t *\n\t *\t\t   [ Target ]\n\t *\t\t        ^\n\t *\t\t    +-----------------+\n\t *\t\t    |     Balloon     |\n\t *\t\t    +-----------------+\n\t *\n\t * * `southArrowNorth`\n\t *\n\t *\t\t    [ Target ]\n\t *\t\t         ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t * * `southArrowNorthMiddleEast`\n\t *\n\t *\t\t            [ Target ]\n\t *\t\t                 ^\n\t *\t\t   +-----------------+\n\t *\t\t   |     Balloon     |\n\t *\t\t   +-----------------+\n\t *\n\t * * `southArrowNorthEast`\n\t *\n\t *\t\t            [ Target ]\n\t *\t\t                 ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t *\n\t *\n\t * **South west**\n\t *\n\t * * `southWestArrowNorthWest`\n\t *\n\t *\t\t [ Target ]\n\t *\t\t ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t * * `southWestArrowNorthMiddleWest`\n\t *\n\t *\t\t     [ Target ]\n\t *\t\t     ^\n\t *\t\t +-----------------+\n\t *\t\t |     Balloon     |\n\t *\t\t +-----------------+\n\t *\n\t * * `southWestArrowNorth`\n\t *\n\t *\t\t         [ Target ]\n\t *\t\t         ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t * * `southWestArrowNorthMiddleEast`\n\t *\n\t *\t\t              [ Target ]\n\t *\t\t              ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t * * `southWestArrowNorthEast`\n\t *\n\t *\t\t                 [ Target ]\n\t *\t\t                 ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t *\n\t *\n\t * **South east**\n\t *\n\t * * `southEastArrowNorthWest`\n\t *\n\t *\t\t[ Target ]\n\t *\t\t         ^\n\t *\t\t        +-----------------+\n\t *\t\t        |     Balloon     |\n\t *\t\t        +-----------------+\n\t * * `southEastArrowNorthMiddleWest`\n\t *\n\t *\t\t   [ Target ]\n\t *\t\t            ^\n\t *\t\t        +-----------------+\n\t *\t\t        |     Balloon     |\n\t *\t\t        +-----------------+\n\t *\n\t * * `southEastArrowNorth`\n\t *\n\t *\t\t[ Target ]\n\t *\t\t         ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t * * `southEastArrowNorthMiddleEast`\n\t *\n\t *\t\t     [ Target ]\n\t *\t\t              ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t * * `southEastArrowNorthEast`\n\t *\n\t *\t\t        [ Target ]\n\t *\t\t                 ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\n\t *\n\t *\n\t * **West**\n\t *\n\t * * `westArrowEast`\n\t *\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |>[ Target ]\n\t *\t\t+-----------------+\n\t *\n\t * **East**\n\t *\n\t * * `eastArrowWest`\n\t *\n\t *\t\t           +-----------------+\n\t *\t\t[ Target ]<|     Balloon     |\n\t *\t\t           +-----------------+\n\t *\n\t *\n\t *\n\t * **Sticky**\n\t *\n\t * * `viewportStickyNorth`\n\t *\n\t *\t\t    +---------------------------+\n\t *\t\t    |        [ Target ]         |\n\t *\t\t    |                           |\n\t *\t\t+-----------------------------------+\n\t *\t\t|   |    +-----------------+    |   |\n\t *\t\t|   |    |     Balloon     |    |   |\n\t *\t\t|   |    +-----------------+    |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   +---------------------------+   |\n\t *\t\t|             Viewport              |\n\t *\t\t+-----------------------------------+\n\t *\n\t * See {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#attachTo}.\n\t *\n\t * Positioning functions must be compatible with {@link module:utils/dom/position~Position}.\n\t *\n\t * Default positioning functions with customized offsets can be generated using\n\t * {@link module:ui/panel/balloon/balloonpanelview~generatePositions}.\n\t *\n\t * The name that the position function returns will be reflected in the balloon panel's class that\n\t * controls the placement of the \"arrow\". See {@link #position} to learn more.\n\t *\n\t * @member {Object.<String,module:utils/dom/position~PositioningFunction>}\n\t * module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions\n\t */\n\tpublic static defaultPositions = generatePositions();\n}\n\n// Returns the DOM element for given object or null, if there is none,\n// e.g. when the passed object is a Rect instance or so.\n//\n// @private\n// @param {*} object\n// @returns {HTMLElement|null}\nfunction getDomElement( object: any ): HTMLElement | null {\n\tif ( isElement( object ) ) {\n\t\treturn object;\n\t}\n\n\tif ( isRange( object ) ) {\n\t\treturn object.commonAncestorContainer as any;\n\t}\n\n\tif ( typeof object == 'function' ) {\n\t\treturn getDomElement( object() );\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns available {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView}\n * {@link module:utils/dom/position~PositioningFunction positioning functions} adjusted by the specific offsets.\n *\n * @protected\n * @param {Object} [options] Options to generate positions. If not specified, this helper will simply return\n * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n * @param {Number} [options.sideOffset] A custom side offset (in pixels) of each position. If\n * not specified, {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.arrowSideOffset the default value}\n * will be used.\n * @param {Number} [options.heightOffset] A custom height offset (in pixels) of each position. If\n * not specified, {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.arrowHeightOffset the default value}\n * will be used.\n * @param {Number} [options.stickyVerticalOffset] A custom offset (in pixels) of the `viewportStickyNorth` positioning function.\n * If not specified, {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.stickyVerticalOffset the default value}\n * will be used.\n * @param {Object} [options.config] Additional configuration of the balloon balloon panel view.\n * Currently only {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#withArrow} is supported. Learn more\n * about {@link module:utils/dom/position~PositioningFunction positioning functions}.\n * @returns {Object.<String,module:utils/dom/position~PositioningFunction>}\n */\nexport function generatePositions( options: {\n\tsideOffset?: number;\n\theightOffset?: number;\n\tstickyVerticalOffset?: number;\n\tconfig?: object;\n} = {} ): Record<string, PositioningFunction> {\n\tconst {\n\t\tsideOffset = BalloonPanelView.arrowSideOffset,\n\t\theightOffset = BalloonPanelView.arrowHeightOffset,\n\t\tstickyVerticalOffset = BalloonPanelView.stickyVerticalOffset,\n\t\tconfig\n\t} = options;\n\n\treturn {\n\t\t// ------- North west\n\n\t\tnorthWestArrowSouthWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - sideOffset,\n\t\t\tname: 'arrow_sw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_smw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - balloonRect.width / 2,\n\t\t\tname: 'arrow_s',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_sme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_se',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- North\n\n\t\tnorthArrowSouthWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - sideOffset,\n\t\t\tname: 'arrow_sw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_smw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width / 2,\n\t\t\tname: 'arrow_s',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_sme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_se',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- North east\n\n\t\tnorthEastArrowSouthWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - sideOffset,\n\t\t\tname: 'arrow_sw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_smw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - balloonRect.width / 2,\n\t\t\tname: 'arrow_s',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_sme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_se',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- South west\n\n\t\tsouthWestArrowNorthWest: targetRect => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - sideOffset,\n\t\t\tname: 'arrow_nw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_nmw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - balloonRect.width / 2,\n\t\t\tname: 'arrow_n',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_nme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_ne',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- South\n\n\t\tsouthArrowNorthWest: targetRect => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - sideOffset,\n\t\t\tname: 'arrow_nw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * 0.25 ) - sideOffset,\n\t\t\tname: 'arrow_nmw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width / 2,\n\t\t\tname: 'arrow_n',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * 0.75 ) + sideOffset,\n\t\t\tname: 'arrow_nme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_ne',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- South east\n\n\t\tsouthEastArrowNorthWest: targetRect => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - sideOffset,\n\t\t\tname: 'arrow_nw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_nmw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - balloonRect.width / 2,\n\t\t\tname: 'arrow_n',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_nme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_ne',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- West\n\n\t\twestArrowEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: targetRect.top + targetRect.height / 2 - balloonRect.height / 2,\n\t\t\tleft: targetRect.left - balloonRect.width - heightOffset,\n\t\t\tname: 'arrow_e',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- East\n\n\t\teastArrowWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: targetRect.top + targetRect.height / 2 - balloonRect.height / 2,\n\t\t\tleft: targetRect.right + heightOffset,\n\t\t\tname: 'arrow_w',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- Sticky\n\n\t\tviewportStickyNorth: ( targetRect, balloonRect, viewportRect ) => {\n\t\t\tif ( !targetRect.getIntersection( viewportRect! ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\ttop: viewportRect!.top + stickyVerticalOffset,\n\t\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width / 2,\n\t\t\t\tname: 'arrowless',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false,\n\t\t\t\t\t...config\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t};\n\n\t// Returns the top coordinate for positions starting with `north*`.\n\t//\n\t// @private\n\t// @param {utils/dom/rect~Rect} targetRect A rect of the target.\n\t// @param {utils/dom/rect~Rect} elementRect A rect of the balloon.\n\t// @returns {Number}\n\tfunction getNorthTop( targetRect: Rect, balloonRect: Rect ) {\n\t\treturn targetRect.top - balloonRect.height - heightOffset;\n\t}\n\n\t// Returns the top coordinate for positions starting with `south*`.\n\t//\n\t// @private\n\t// @param {utils/dom/rect~Rect} targetRect A rect of the target.\n\t// @param {utils/dom/rect~Rect} elementRect A rect of the balloon.\n\t// @returns {Number}\n\tfunction getSouthTop( targetRect: Rect ) {\n\t\treturn targetRect.bottom + heightOffset;\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tooltip.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/tooltipmanager\n */\n\nimport View from './view';\nimport BalloonPanelView, { generatePositions } from './panel/balloon/balloonpanelview';\n\nimport {\n\tDomEmitterMixin,\n\tResizeObserver,\n\tfirst,\n\tglobal,\n\tisVisible,\n\ttype EventInfo,\n\ttype PositioningFunction\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { Editor, EditorUIUpdateEvent } from '@ckeditor/ckeditor5-core';\n\nimport { isElement, debounce, type DebouncedFunc } from 'lodash-es';\n\nimport '../theme/components/tooltip/tooltip.css';\n\nconst BALLOON_CLASS = 'ck-tooltip';\n\n/**\n * A tooltip manager class for the UI of the editor.\n *\n * **Note**: Most likely you do not have to use the `TooltipManager` API listed below in order to display tooltips. Popular\n * {@glink framework/guides/architecture/ui-library UI components} support tooltips out-of-the-box via observable properties\n * (see {@link module:ui/button/buttonview~ButtonView#tooltip} and {@link module:ui/button/buttonview~ButtonView#tooltipPosition}).\n *\n * # Displaying tooltips\n *\n * To display a tooltip, set `data-cke-tooltip-text` attribute on any DOM element:\n *\n *\t\tdomElement.dataset.ckeTooltipText = 'My tooltip';\n *\n * The tooltip will show up whenever the user moves the mouse over the element or the element gets focus in DOM.\n *\n * # Positioning tooltips\n *\n * To change the position of the tooltip, use the `data-cke-tooltip-position` attribute (`s`, `se`, `sw`, `n`, `e`, or `w`):\n *\n *\t\tdomElement.dataset.ckeTooltipText = 'Tooltip to the north';\n *\t\tdomElement.dataset.ckeTooltipPosition = 'n';\n *\n * # Disabling tooltips\n *\n * In order to disable the tooltip  temporarily, use the `data-cke-tooltip-disabled` attribute:\n *\n *\t\tdomElement.dataset.ckeTooltipText = 'Disabled. For now.';\n *\t\tdomElement.dataset.ckeTooltipDisabled = 'true';\n *\n *\n * # Styling tooltips\n *\n * By default, the tooltip has `.ck-tooltip` class and its text inner `.ck-tooltip__text`.\n *\n * If your tooltip requires custom styling, using `data-cke-tooltip-class` attribute will add additional class to the balloon\n * displaying the tooltip:\n *\n *\t\tdomElement.dataset.ckeTooltipText = 'Tooltip with a red text';\n *\t\tdomElement.dataset.ckeTooltipClass = 'my-class';\n *\n *\t\t.ck.ck-tooltip.my-class { color: red }\n *\n * **Note**: This class is a singleton. All editor instances re-use the same instance loaded by\n * {@link module:core/editor/editorui~EditorUI} of the first editor.\n *\n * @mixes module:utils/domemittermixin~DomEmitterMixin\n */\nexport default class TooltipManager extends DomEmitterMixin() {\n\tpublic readonly tooltipTextView!: View & { text: string };\n\tpublic readonly balloonPanelView!: BalloonPanelView;\n\n\t/**\n\t * A set of default {@link module:utils/dom/position~PositioningFunction positioning functions} used by the `TooltipManager`\n\t * to pin tooltips in different positions.\n\t *\n\t * @member {Object.<String,module:utils/dom/position~PositioningFunction>}\n\t * module:ui/tooltipmanager~TooltipManager.defaultBalloonPositions\n\t */\n\tpublic static defaultBalloonPositions = generatePositions( {\n\t\theightOffset: 5,\n\t\tsideOffset: 13\n\t} );\n\n\tprivate _currentElementWithTooltip!: HTMLElement | null;\n\tprivate _currentTooltipPosition!: TooltipPosition | null;\n\tprivate _resizeObserver!: ResizeObserver | null;\n\tprivate _pinTooltipDebounced!: DebouncedFunc<( targetDomElement: HTMLElement, data: TooltipData ) => void>;\n\n\tprivate readonly _watchdogExcluded!: true;\n\n\t/**\n\t * A set of editors the single tooltip manager instance must listen to.\n\t * This is mostly to handle `EditorUI#update` listeners from individual editors.\n\t *\n\t * @private\n\t * @member {Set.<module:core/editor/editor~Editor>} module:ui/tooltipmanager~TooltipManager._editors\n\t */\n\tprivate static _editors = new Set<Editor>();\n\n\t/**\n\t * A reference to the `TooltipManager` instance. The class is a singleton and as such,\n\t * successive attempts at creating instances should return this instance.\n\t *\n\t * @private\n\t * @member {module:ui/tooltipmanager~TooltipManager} module:ui/tooltipmanager~TooltipManager._instance\n\t */\n\tprivate static _instance: TooltipManager | null = null;\n\n\t/**\n\t * Creates an instance of the tooltip manager.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\tTooltipManager._editors.add( editor );\n\n\t\t// TooltipManager must be a singleton. Multiple instances would mean multiple tooltips attached\n\t\t// to the same DOM element with data-cke-tooltip-* attributes.\n\t\tif ( TooltipManager._instance ) {\n\t\t\treturn TooltipManager._instance;\n\t\t}\n\n\t\tTooltipManager._instance = this;\n\n\t\t/**\n\t\t * The view rendering text of the tooltip.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/view~View} #tooltipTextView\n\t\t */\n\t\tthis.tooltipTextView = new View( editor.locale ) as any;\n\t\tthis.tooltipTextView.set( 'text', '' );\n\t\tthis.tooltipTextView.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-tooltip__text'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: this.tooltipTextView.bindTemplate.to( 'text' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t/**\n\t\t * The instance of the balloon panel that renders and positions the tooltip.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/panel/balloon/balloonpanelview~BalloonPanelView} #balloonPanelView\n\t\t */\n\t\tthis.balloonPanelView = new BalloonPanelView( editor.locale );\n\t\tthis.balloonPanelView.class = BALLOON_CLASS;\n\t\tthis.balloonPanelView.content.add( this.tooltipTextView );\n\n\t\t/**\n\t\t * An instance of the resize observer that keeps track on target element visibility,\n\t\t * when it hides the tooltip should also disappear.\n\t\t *\n\t\t * {@link module:core/editor/editorconfig~EditorConfig#balloonToolbar configuration}.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:utils/dom/resizeobserver~ResizeObserver|null}\n\t\t *\n\t\t */\n\t\tthis._resizeObserver = null;\n\n\t\t/**\n\t\t * Stores the reference to the DOM element the tooltip is attached to. `null` when there's no tooltip\n\t\t * in the UI.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @member {HTMLElement|null} #_currentElementWithTooltip\n\t\t */\n\t\tthis._currentElementWithTooltip = null;\n\n\t\t/**\n\t\t * Stores the current tooltip position. `null` when there's no tooltip in the UI.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @member {String|null} #_currentTooltipPosition\n\t\t */\n\t\tthis._currentTooltipPosition = null;\n\n\t\t/**\n\t\t * A debounced version of {@link #_pinTooltip}. Tooltips show with a delay to avoid flashing and\n\t\t * to improve the UX.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @member {Function} #_pinTooltipDebounced\n\t\t */\n\t\tthis._pinTooltipDebounced = debounce( this._pinTooltip, 600 );\n\n\t\tthis.listenTo( global.document, 'mouseenter', this._onEnterOrFocus.bind( this ), { useCapture: true } );\n\t\tthis.listenTo( global.document, 'mouseleave', this._onLeaveOrBlur.bind( this ), { useCapture: true } );\n\n\t\tthis.listenTo( global.document, 'focus', this._onEnterOrFocus.bind( this ), { useCapture: true } );\n\t\tthis.listenTo( global.document, 'blur', this._onLeaveOrBlur.bind( this ), { useCapture: true } );\n\n\t\tthis.listenTo( global.document, 'scroll', this._onScroll.bind( this ), { useCapture: true } );\n\n\t\t// Because this class is a singleton, its only instance is shared across all editors and connects them through the reference.\n\t\t// This causes issues with the ContextWatchdog. When an error is thrown in one editor, the watchdog traverses the references\n\t\t// and (because of shared tooltip manager) figures that the error affects all editors and restarts them all.\n\t\t// This flag, excludes tooltip manager instance from the traversal and brings ContextWatchdog back to normal.\n\t\t// More in https://github.com/ckeditor/ckeditor5/issues/12292.\n\t\tthis._watchdogExcluded = true;\n\t}\n\n\t/**\n\t * Destroys the tooltip manager.\n\t *\n\t * **Note**: The manager singleton cannot be destroyed until all editors that use it are destroyed.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor the manager was created for.\n\t */\n\tpublic destroy( editor: Editor ): void {\n\t\tconst editorBodyViewCollection = editor.ui.view && editor.ui.view.body;\n\n\t\tTooltipManager._editors.delete( editor );\n\t\tthis.stopListening( editor.ui );\n\n\t\t// Prevent the balloon panel from being destroyed in the EditorUI#destroy() cascade. It should be destroyed along\n\t\t// with the last editor only (https://github.com/ckeditor/ckeditor5/issues/12602).\n\t\tif ( editorBodyViewCollection && editorBodyViewCollection.has( this.balloonPanelView ) ) {\n\t\t\teditorBodyViewCollection.remove( this.balloonPanelView );\n\t\t}\n\n\t\tif ( !TooltipManager._editors.size ) {\n\t\t\tthis._unpinTooltip();\n\t\t\tthis.balloonPanelView.destroy();\n\t\t\tthis.stopListening();\n\n\t\t\tTooltipManager._instance = null;\n\t\t}\n\t}\n\n\t/**\n\t * Returns {@link #balloonPanelView} {@link module:utils/dom/position~PositioningFunction positioning functions} for a given position\n\t * name.\n\t *\n\t * @static\n\t * @param {String} position Name of the position (`s`, `se`, `sw`, `n`, `e`, or `w`).\n\t * @returns {Array.<module:utils/dom/position~PositioningFunction>} Positioning functions to be used by the {@link #balloonPanelView}.\n\t */\n\tpublic static getPositioningFunctions( position: TooltipPosition ): Array<PositioningFunction> {\n\t\tconst defaultPositions = TooltipManager.defaultBalloonPositions;\n\n\t\treturn {\n\t\t\t// South is most popular. We can use positioning heuristics to avoid clipping by the viewport with the sane fallback.\n\t\t\ts: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\t\tdefaultPositions.southArrowNorthWest\n\t\t\t],\n\t\t\tn: [ defaultPositions.northArrowSouth ],\n\t\t\te: [ defaultPositions.eastArrowWest ],\n\t\t\tw: [ defaultPositions.westArrowEast ],\n\t\t\tsw: [ defaultPositions.southArrowNorthEast ],\n\t\t\tse: [ defaultPositions.southArrowNorthWest ]\n\t\t}[ position ];\n\t}\n\n\t/**\n\t * Handles displaying tooltips on `mouseenter` and `focus` in DOM.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n\t * @param {Event} domEvent The DOM event.\n\t */\n\tprivate _onEnterOrFocus( evt: unknown, { target }: any ) {\n\t\tconst elementWithTooltipAttribute = getDescendantWithTooltip( target );\n\n\t\t// Abort when there's no descendant needing tooltip.\n\t\tif ( !elementWithTooltipAttribute ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Abort to avoid flashing when, for instance:\n\t\t// * a tooltip is displayed for a focused element, then the same element gets mouseentered,\n\t\t// * a tooltip is displayed for an element via mouseenter, then the focus moves to the same element.\n\t\tif ( elementWithTooltipAttribute === this._currentElementWithTooltip ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._unpinTooltip();\n\n\t\tthis._pinTooltipDebounced( elementWithTooltipAttribute, getTooltipData( elementWithTooltipAttribute ) );\n\t}\n\n\t/**\n\t * Handles hiding tooltips on `mouseleave` and `blur` in DOM.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n\t * @param {Event} domEvent The DOM event.\n\t */\n\tprivate _onLeaveOrBlur( evt: EventInfo, { target, relatedTarget }: any ) {\n\t\tif ( evt.name === 'mouseleave' ) {\n\t\t\t// Don't act when the event does not concern a DOM element (e.g. a mouseleave out of an entire document),\n\t\t\tif ( !isElement( target ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If a tooltip is currently visible, don't act for a targets other than the one it is attached to.\n\t\t\t// For instance, a random mouseleave far away in the page should not unpin the tooltip that was pinned because\n\t\t\t// of a previous focus. Only leaving the same element should hide the tooltip.\n\t\t\tif ( this._currentElementWithTooltip && target !== this._currentElementWithTooltip ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst descendantWithTooltip = getDescendantWithTooltip( target );\n\t\t\tconst relatedDescendantWithTooltip = getDescendantWithTooltip( relatedTarget );\n\n\t\t\t// Unpin when the mouse was leaving element with a tooltip to a place which does not have or has a different tooltip.\n\t\t\t// Note that this should happen whether the tooltip is already visible or not, for instance, it could be invisible but queued\n\t\t\t// (debounced): it should get canceled.\n\t\t\tif ( descendantWithTooltip && descendantWithTooltip !== relatedDescendantWithTooltip ) {\n\t\t\t\tthis._unpinTooltip();\n\t\t\t}\n\t\t}\n\t\telse {\n\t\t\t// If a tooltip is currently visible, don't act for a targets other than the one it is attached to.\n\t\t\t// For instance, a random blur in the web page should not unpin the tooltip that was pinned because of a previous mouseenter.\n\t\t\tif ( this._currentElementWithTooltip && target !== this._currentElementWithTooltip ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Note that unpinning should happen whether the tooltip is already visible or not, for instance, it could be invisible but\n\t\t\t// queued (debounced): it should get canceled (e.g. quick focus then quick blur using the keyboard).\n\t\t\tthis._unpinTooltip();\n\t\t}\n\t}\n\n\t/**\n\t * Handles hiding tooltips on `scroll` in DOM.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n\t * @param {Event} domEvent The DOM event.\n\t */\n\tprivate _onScroll( evt: unknown, { target }: any ) {\n\t\t// No tooltip, no reason to react on scroll.\n\t\tif ( !this._currentElementWithTooltip ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// When scrolling a container that has both the balloon and the current element (common ancestor), the balloon can remain\n\t\t// visible (e.g. scrolling ≤body>). Otherwise, to avoid glitches (clipping, lagging) better just hide the tooltip.\n\t\t// Also, don't do anything when scrolling an unrelated DOM element that has nothing to do with the current element and the balloon.\n\t\tif ( target.contains( this.balloonPanelView.element ) && target.contains( this._currentElementWithTooltip ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._unpinTooltip();\n\t}\n\n\t/**\n\t * Pins the tooltip to a specific DOM element.\n\t *\n\t * @private\n\t * @param {Element} targetDomElement\n\t * @param {Object} options\n\t * @param {String} options.text Text of the tooltip to display.\n\t * @param {String} options.position The position of the tooltip.\n\t * @param {String} options.cssClass Additional CSS class of the balloon with the tooltip.\n\t */\n\tprivate _pinTooltip(\n\t\ttargetDomElement: HTMLElement,\n\t\t{ text, position, cssClass }: TooltipData\n\t): void {\n\t\t// Use the body collection of the first editor.\n\t\tconst bodyViewCollection = first( TooltipManager._editors.values() )!.ui.view.body;\n\n\t\tif ( !bodyViewCollection.has( this.balloonPanelView ) ) {\n\t\t\tbodyViewCollection.add( this.balloonPanelView );\n\t\t}\n\n\t\tthis.tooltipTextView.text = text;\n\n\t\tthis.balloonPanelView.pin( {\n\t\t\ttarget: targetDomElement,\n\t\t\tpositions: TooltipManager.getPositioningFunctions( position )\n\t\t} );\n\n\t\tthis._resizeObserver = new ResizeObserver( targetDomElement, () => {\n\t\t\t// The ResizeObserver will call its callback when the target element hides and the tooltip\n\t\t\t// should also disappear (https://github.com/ckeditor/ckeditor5/issues/12492).\n\t\t\tif ( !isVisible( targetDomElement ) ) {\n\t\t\t\tthis._unpinTooltip();\n\t\t\t}\n\t\t} );\n\n\t\tthis.balloonPanelView.class = [ BALLOON_CLASS, cssClass ]\n\t\t\t.filter( className => className )\n\t\t\t.join( ' ' );\n\n\t\t// Start responding to changes in editor UI or content layout. For instance, when collaborators change content\n\t\t// and a contextual toolbar attached to a content starts to move (and so should move the tooltip).\n\t\t// Note: Using low priority to let other listeners that position contextual toolbars etc. to react first.\n\t\tfor ( const editor of TooltipManager._editors ) {\n\t\t\tthis.listenTo<EditorUIUpdateEvent>( editor.ui, 'update', this._updateTooltipPosition.bind( this ), { priority: 'low' } );\n\t\t}\n\n\t\tthis._currentElementWithTooltip = targetDomElement;\n\t\tthis._currentTooltipPosition = position;\n\t}\n\n\t/**\n\t * Unpins the tooltip and cancels all queued pinning.\n\t *\n\t * @private\n\t */\n\tprivate _unpinTooltip() {\n\t\tthis._pinTooltipDebounced.cancel();\n\n\t\tthis.balloonPanelView.unpin();\n\n\t\tfor ( const editor of TooltipManager._editors ) {\n\t\t\tthis.stopListening( editor.ui, 'update' );\n\t\t}\n\n\t\tthis._currentElementWithTooltip = null;\n\t\tthis._currentTooltipPosition = null;\n\n\t\tif ( this._resizeObserver ) {\n\t\t\tthis._resizeObserver.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Updates the position of the tooltip so it stays in sync with the element it is pinned to.\n\t *\n\t * Hides the tooltip when the element is no longer visible in DOM.\n\t *\n\t * @private\n\t */\n\tprivate _updateTooltipPosition() {\n\t\t// This could happen if the tooltip was attached somewhere in a contextual content toolbar and the toolbar\n\t\t// disappeared (e.g. removed an image).\n\t\tif ( !isVisible( this._currentElementWithTooltip ) ) {\n\t\t\tthis._unpinTooltip();\n\n\t\t\treturn;\n\t\t}\n\n\t\tthis.balloonPanelView.pin( {\n\t\t\ttarget: this._currentElementWithTooltip!,\n\t\t\tpositions: TooltipManager.getPositioningFunctions( this._currentTooltipPosition! )\n\t\t} );\n\t}\n}\n\nexport type TooltipPosition = 's' | 'n' | 'e' | 'w' | 'sw' | 'se';\n\nfunction getDescendantWithTooltip( element: HTMLElement ) {\n\tif ( !isElement( element ) ) {\n\t\treturn null;\n\t}\n\n\treturn element.closest( '[data-cke-tooltip-text]:not([data-cke-tooltip-disabled])' ) as HTMLElement;\n}\n\ninterface TooltipData {\n\ttext: string;\n\tposition: TooltipPosition;\n\tcssClass: string;\n}\n\nfunction getTooltipData( element: HTMLElement ): TooltipData {\n\treturn {\n\t\ttext: element.dataset.ckeTooltipText!,\n\t\tposition: ( element.dataset.ckeTooltipPosition || 's' ) as TooltipPosition,\n\t\tcssClass: element.dataset.ckeTooltipClass || ''\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editor/editorui\n */\n\n/* globals console */\n\nimport type { ViewDocumentLayoutChangedEvent } from '@ckeditor/ckeditor5-engine';\n\n// TODO: can't import it from `@ckeditor/ckeditor5-ui` because of indirect circular dependency\n// between `@ckeditor/ckeditor5-{ui,core}/src/index.ts`.\nimport ComponentFactory from '@ckeditor/ckeditor5-ui/src/componentfactory';\nimport TooltipManager from '@ckeditor/ckeditor5-ui/src/tooltipmanager';\n\nimport type {\n\tEditorUIView,\n\tToolbarView,\n\tUIViewRenderEvent\n} from '@ckeditor/ckeditor5-ui';\n\nimport {\n\tObservableMixin,\n\tisVisible,\n\tFocusTracker\n} from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor';\n\n/**\n * A class providing the minimal interface that is required to successfully bootstrap any editor UI.\n *\n * @mixes module:utils/emittermixin~EmitterMixin\n */\nexport default abstract class EditorUI extends ObservableMixin() {\n\tpublic readonly editor: Editor;\n\tpublic readonly componentFactory: ComponentFactory;\n\tpublic readonly focusTracker: FocusTracker;\n\tpublic readonly tooltipManager: TooltipManager;\n\tpublic isReady: boolean;\n\n\tpublic abstract get view(): EditorUIView;\n\n\tpublic declare viewportOffset: {\n\t\tleft?: number;\n\t\tright?: number;\n\t\ttop?: number;\n\t\tbottom?: number;\n\t};\n\n\tprivate _editableElementsMap: Map<string, HTMLElement>;\n\tprivate _focusableToolbarDefinitions: Array<FocusableToolbarDefinition>;\n\n\t/**\n\t * Creates an instance of the editor UI class.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor instance.\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The editor that the UI belongs to.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:core/editor/editor~Editor} #editor\n\t\t */\n\t\tthis.editor = editor;\n\n\t\t/**\n\t\t * An instance of the {@link module:ui/componentfactory~ComponentFactory}, a registry used by plugins\n\t\t * to register factories of specific UI components.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/componentfactory~ComponentFactory} #componentFactory\n\t\t */\n\t\tthis.componentFactory = new ComponentFactory( editor );\n\n\t\t/**\n\t\t * Stores the information about the editor UI focus and propagates it so various plugins and components\n\t\t * are unified as a focus group.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker} #focusTracker\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * Manages the tooltips displayed on mouseover and focus across the UI.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/tooltipmanager~TooltipManager}\n\t\t */\n\t\tthis.tooltipManager = new TooltipManager( editor );\n\n\t\t/**\n\t\t * Stores viewport offsets from every direction.\n\t\t *\n\t\t * Viewport offset can be used to constrain balloons or other UI elements into an element smaller than the viewport.\n\t\t * This can be useful if there are any other absolutely positioned elements that may interfere with editor UI.\n\t\t *\n\t\t * Example `editor.ui.viewportOffset` returns:\n\t\t *\n\t\t * ```js\n\t\t * {\n\t\t * \ttop: 50,\n\t\t * \tright: 50,\n\t\t * \tbottom: 50,\n\t\t * \tleft: 50\n\t\t * }\n\t\t * ```\n\t\t *\n\t\t * This property can be overriden after editor already being initialized:\n\t\t *\n\t\t * ```js\n\t\t * editor.ui.viewportOffset = {\n\t\t * \ttop: 100,\n\t\t * \tright: 0,\n\t\t * \tbottom: 0,\n\t\t * \tleft: 0\n\t\t * };\n\t\t * ```\n\t\t *\n\t\t * @observable\n\t\t * @member {Object} #viewportOffset\n\t\t */\n\t\tthis.set( 'viewportOffset', this._readViewportOffsetFromConfig() );\n\n\t\t/**\n\t\t * Indicates the UI is ready. Set `true` after {@link #event:ready} event is fired.\n\t\t *\n\t\t * @readonly\n\t\t * @default false\n\t\t * @member {Boolean} #isReady\n\t\t */\n\t\tthis.isReady = false;\n\t\tthis.once<EditorUIReadyEvent>( 'ready', () => {\n\t\t\tthis.isReady = true;\n\t\t} );\n\n\t\t/**\n\t\t * Stores all editable elements used by the editor instance.\n\t\t *\n\t\t * @private\n\t\t * @member {Map.<String,HTMLElement>}\n\t\t */\n\t\tthis._editableElementsMap = new Map();\n\n\t\t/**\n\t\t * All available & focusable toolbars.\n\t\t *\n\t\t * @private\n\t\t * @type {Array.<module:core/editor/editorui~FocusableToolbarDefinition>}\n\t\t */\n\t\tthis._focusableToolbarDefinitions = [];\n\n\t\t// Informs UI components that should be refreshed after layout change.\n\t\tthis.listenTo<ViewDocumentLayoutChangedEvent>( editor.editing.view.document, 'layoutChanged', () => this.update() );\n\n\t\tthis._initFocusTracking();\n\t}\n\n\t/**\n\t * The main (outermost) DOM element of the editor UI.\n\t *\n\t * For example, in {@link module:editor-classic/classiceditor~ClassicEditor} it is a `<div>` which\n\t * wraps the editable element and the toolbar. In {@link module:editor-inline/inlineeditor~InlineEditor}\n\t * it is the editable element itself (as there is no other wrapper). However, in\n\t * {@link module:editor-decoupled/decouplededitor~DecoupledEditor} it is set to `null` because this editor does not\n\t * come with a single \"main\" HTML element (its editable element and toolbar are separate).\n\t *\n\t * This property can be understood as a shorthand for retrieving the element that a specific editor integration\n\t * considers to be its main DOM element.\n\t *\n\t * @readonly\n\t * @member {HTMLElement|null} #element\n\t */\n\tpublic get element(): HTMLElement | null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Fires the {@link module:core/editor/editorui~EditorUI#event:update `update`} event.\n\t *\n\t * This method should be called when the editor UI (e.g. positions of its balloons) needs to be updated due to\n\t * some environmental change which CKEditor 5 is not aware of (e.g. resize of a container in which it is used).\n\t */\n\tpublic update(): void {\n\t\tthis.fire<EditorUIUpdateEvent>( 'update' );\n\t}\n\n\t/**\n\t * Destroys the UI.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.tooltipManager.destroy( this.editor );\n\n\t\t// Clean–up the references to the CKEditor instance stored in the native editable DOM elements.\n\t\tfor ( const domElement of this._editableElementsMap.values() ) {\n\t\t\t( domElement as any ).ckeditorInstance = null;\n\t\t}\n\n\t\tthis._editableElementsMap = new Map();\n\t\tthis._focusableToolbarDefinitions = [];\n\t}\n\n\t/**\n\t * Stores the native DOM editable element used by the editor under a unique name.\n\t *\n\t * Also, registers the element in the editor to maintain the accessibility of the UI. When the user is editing text in a focusable\n\t * editable area, they can use the <kbd>Alt</kbd> + <kbd>F10</kbd> keystroke to navigate over editor toolbars. See {@link #addToolbar}.\n\t *\n\t * @param {String} rootName The unique name of the editable element.\n\t * @param {HTMLElement} domElement The native DOM editable element.\n\t */\n\tpublic setEditableElement( rootName: string, domElement: HTMLElement ): void {\n\t\tthis._editableElementsMap.set( rootName, domElement );\n\n\t\t// Put a reference to the CKEditor instance in the editable native DOM element.\n\t\t// It helps 3rd–party software (browser extensions, other libraries) access and recognize\n\t\t// CKEditor 5 instances (editing roots) and use their API (there is no global editor\n\t\t// instance registry).\n\t\tif ( !( domElement as any ).ckeditorInstance ) {\n\t\t\t( domElement as any ).ckeditorInstance = this.editor;\n\t\t}\n\n\t\t// Register the element so it becomes available for Alt+F10 and Esc navigation.\n\t\tthis.focusTracker.add( domElement );\n\n\t\tconst setUpKeystrokeHandler = () => {\n\t\t\t// The editing view of the editor is already listening to keystrokes from DOM roots (see: KeyObserver).\n\t\t\t// Do not duplicate listeners.\n\t\t\tif ( this.editor.editing.view.getDomRoot( rootName ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.keystrokes.listenTo( domElement );\n\t\t};\n\n\t\t// For editable elements set by features after EditorUI is ready (e.g. source editing).\n\t\tif ( this.isReady ) {\n\t\t\tsetUpKeystrokeHandler();\n\t\t}\n\t\t// For editable elements set while the editor is being created (e.g. DOM roots).\n\t\telse {\n\t\t\tthis.once<EditorUIReadyEvent>( 'ready', setUpKeystrokeHandler );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the editable editor element with the given name or null if editable does not exist.\n\t *\n\t * @param {String} [rootName=main] The editable name.\n\t * @returns {HTMLElement|undefined}\n\t */\n\tpublic getEditableElement( rootName: string = 'main' ): HTMLElement | undefined {\n\t\treturn this._editableElementsMap.get( rootName );\n\t}\n\n\t/**\n\t * Returns array of names of all editor editable elements.\n\t *\n\t * @returns {Iterable.<String>}\n\t */\n\tpublic getEditableElementsNames(): IterableIterator<string> {\n\t\treturn this._editableElementsMap.keys();\n\t}\n\n\t/**\n\t * Adds a toolbar to the editor UI. Used primarily to maintain the accessibility of the UI.\n\t *\n\t * Focusable toolbars can be accessed (focused) by users by pressing the <kbd>Alt</kbd> + <kbd>F10</kbd> keystroke.\n\t * Successive keystroke presses navigate over available toolbars.\n\t *\n\t * @param {module:ui/toolbar/toolbarview~ToolbarView} toolbarView A instance of the toolbar to be registered.\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.isContextual] Set `true` if the toolbar is attached to the content of the editor. Such toolbar takes\n\t * a precedence over other toolbars when a user pressed <kbd>Alt</kbd> + <kbd>F10</kbd>.\n\t * @param {Function} [options.beforeFocus] Specify a callback executed before the toolbar instance DOM element gains focus\n\t * upon the <kbd>Alt</kbd> + <kbd>F10</kbd> keystroke.\n\t * @param {Function} [options.afterBlur] Specify a callback executed after the toolbar instance DOM element loses focus upon\n\t * <kbd>Esc</kbd> keystroke but before the focus goes back to the {@link #setEditableElement editable element}.\n\t */\n\tpublic addToolbar( toolbarView: ToolbarView, options: FocusableToolbarOptions = {} ): void {\n\t\tif ( toolbarView.isRendered ) {\n\t\t\tthis.focusTracker.add( toolbarView.element! );\n\t\t\tthis.editor.keystrokes.listenTo( toolbarView.element! );\n\t\t} else {\n\t\t\ttoolbarView.once<UIViewRenderEvent>( 'render', () => {\n\t\t\t\tthis.focusTracker.add( toolbarView.element! );\n\t\t\t\tthis.editor.keystrokes.listenTo( toolbarView.element! );\n\t\t\t} );\n\t\t}\n\n\t\tthis._focusableToolbarDefinitions.push( { toolbarView, options } );\n\t}\n\n\t/**\n\t * Stores all editable elements used by the editor instance.\n\t *\n\t * @protected\n\t * @deprecated\n\t * @member {Map.<String,HTMLElement>}\n\t */\n\tprotected get _editableElements(): unknown {\n\t\t/**\n\t\t * The {@link module:core/editor/editorui~EditorUI#_editableElements `EditorUI#_editableElements`} property has been\n\t\t * deprecated and will be removed in the near future. Please use {@link #setEditableElement `setEditableElement()`} and\n\t\t * {@link #getEditableElement `getEditableElement()`} methods instead.\n\t\t *\n\t\t * @error editor-ui-deprecated-editable-elements\n\t\t * @param {module:core/editor/editorui~EditorUI} editorUI Editor UI instance the deprecated property belongs to.\n\t\t */\n\t\tconsole.warn(\n\t\t\t'editor-ui-deprecated-editable-elements: ' +\n\t\t\t'The EditorUI#_editableElements property has been deprecated and will be removed in the near future.',\n\t\t\t{ editorUI: this } );\n\n\t\treturn this._editableElementsMap;\n\t}\n\n\t/**\n\t * Returns viewport offsets object:\n\t *\n\t * ```js\n\t * {\n\t * \ttop: Number,\n\t * \tright: Number,\n\t * \tbottom: Number,\n\t * \tleft: Number\n\t * }\n\t * ```\n\t *\n\t * Only top property is currently supported.\n\t *\n\t * @private\n\t * @return {Object}\n\t */\n\tprivate _readViewportOffsetFromConfig() {\n\t\tconst editor = this.editor;\n\t\tconst viewportOffsetConfig = editor.config.get( 'ui.viewportOffset' );\n\n\t\tif ( viewportOffsetConfig ) {\n\t\t\treturn viewportOffsetConfig;\n\t\t}\n\n\t\t// Not present in EditorConfig type, because it's legacy. Hence the `as` expression.\n\t\tconst legacyOffsetConfig = editor.config.get( 'toolbar.viewportTopOffset' ) as number | undefined;\n\n\t\t// Fall back to deprecated toolbar config.\n\t\tif ( legacyOffsetConfig ) {\n\t\t\t/**\n\t\t\t * The {@link module:core/editor/editorconfig~EditorConfig#toolbar `EditorConfig#toolbar.viewportTopOffset`}\n\t\t\t * property has been deprecated and will be removed in the near future. Please use\n\t\t\t * {@link module:core/editor/editorconfig~EditorConfig#ui `EditorConfig#ui.viewportOffset`} instead.\n\t\t\t *\n\t\t\t * @error editor-ui-deprecated-viewport-offset-config\n\t\t\t */\n\t\t\tconsole.warn(\n\t\t\t\t'editor-ui-deprecated-viewport-offset-config: ' +\n\t\t\t\t'The `toolbar.vieportTopOffset` configuration option is deprecated. ' +\n\t\t\t\t'It will be removed from future CKEditor versions. Use `ui.viewportOffset.top` instead.'\n\t\t\t);\n\n\t\t\treturn { top: legacyOffsetConfig };\n\t\t}\n\n\t\t// More keys to come in the future.\n\t\treturn { top: 0 };\n\t}\n\n\t/**\n\t * Starts listening for <kbd>Alt</kbd> + <kbd>F10</kbd> and <kbd>Esc</kbd> keystrokes in the context of focusable\n\t * {@link #setEditableElement editable elements} and {@link #addToolbar toolbars}\n\t * to allow users navigate across the UI.\n\t *\n\t * @private\n\t */\n\tprivate _initFocusTracking(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\tlet lastFocusedForeignElement: HTMLElement | null;\n\t\tlet candidateDefinitions: Array<FocusableToolbarDefinition>;\n\n\t\t// Focus the next focusable toolbar on <kbd>Alt</kbd> + <kbd>F10</kbd>.\n\t\teditor.keystrokes.set( 'Alt+F10', ( data, cancel ) => {\n\t\t\tconst focusedElement = this.focusTracker.focusedElement as HTMLElement;\n\n\t\t\t// Focus moved out of a DOM element that\n\t\t\t// * is not a toolbar,\n\t\t\t// * does not belong to the editing view (e.g. source editing).\n\t\t\tif (\n\t\t\t\tArray.from( this._editableElementsMap.values() ).includes( focusedElement ) &&\n\t\t\t\t!Array.from( editingView.domRoots.values() ).includes( focusedElement )\n\t\t\t) {\n\t\t\t\tlastFocusedForeignElement = focusedElement;\n\t\t\t}\n\n\t\t\tconst currentFocusedToolbarDefinition = this._getCurrentFocusedToolbarDefinition();\n\n\t\t\t// * When focusing a toolbar for the first time, set the array of definitions for successive presses of Alt+F10.\n\t\t\t// This ensures, the navigation works always the same and no pair of toolbars takes over\n\t\t\t// (e.g. image and table toolbars when a selected image is inside a cell).\n\t\t\t// * It could be that the focus went to the toolbar by clicking a toolbar item (e.g. a dropdown). In this case,\n\t\t\t// there were no candidates so they must be obtained (#12339).\n\t\t\tif ( !currentFocusedToolbarDefinition || !candidateDefinitions ) {\n\t\t\t\tcandidateDefinitions = this._getFocusableCandidateToolbarDefinitions();\n\t\t\t}\n\n\t\t\t// In a single Alt+F10 press, check all candidates but if none were focused, don't go any further.\n\t\t\t// This prevents an infinite loop.\n\t\t\tfor ( let i = 0; i < candidateDefinitions.length; i++ ) {\n\t\t\t\tconst candidateDefinition = candidateDefinitions.shift()!;\n\n\t\t\t\t// Put the first definition to the back of the array. This allows circular navigation over all toolbars\n\t\t\t\t// on successive presses of Alt+F10.\n\t\t\t\tcandidateDefinitions.push( candidateDefinition );\n\n\t\t\t\t// Don't focus the same toolbar again. If you did, this would move focus from the nth focused toolbar item back to the\n\t\t\t\t// first item as per ToolbarView#focus() if the user navigated inside the toolbar.\n\t\t\t\tif (\n\t\t\t\t\tcandidateDefinition !== currentFocusedToolbarDefinition &&\n\t\t\t\t\tthis._focusFocusableCandidateToolbar( candidateDefinition )\n\t\t\t\t) {\n\t\t\t\t\t// Clean up after a current visible toolbar when switching to the next one.\n\t\t\t\t\tif ( currentFocusedToolbarDefinition && currentFocusedToolbarDefinition.options.afterBlur ) {\n\t\t\t\t\t\tcurrentFocusedToolbarDefinition.options.afterBlur();\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Blur the focused toolbar on <kbd>Esc</kbd> and bring the focus back to its origin.\n\t\teditor.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tconst focusedToolbarDef = this._getCurrentFocusedToolbarDefinition();\n\n\t\t\tif ( !focusedToolbarDef ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Bring focus back to where it came from before focusing the toolbar:\n\t\t\t// 1. If it came from outside the engine view (e.g. source editing), move it there.\n\t\t\tif ( lastFocusedForeignElement ) {\n\t\t\t\tlastFocusedForeignElement.focus();\n\t\t\t\tlastFocusedForeignElement = null;\n\t\t\t}\n\t\t\t// 2. There are two possibilities left:\n\t\t\t//   2.1. It could be that the focus went from an editable element in the view (root or nested).\n\t\t\t//   2.2. It could be the focus went straight to the toolbar before even focusing the editing area.\n\t\t\t// In either case, just focus the view editing. The focus will land where it belongs.\n\t\t\telse {\n\t\t\t\teditor.editing.view.focus();\n\t\t\t}\n\n\t\t\t// Clean up after the toolbar if there is anything to do there.\n\t\t\tif ( focusedToolbarDef.options.afterBlur ) {\n\t\t\t\tfocusedToolbarDef.options.afterBlur();\n\t\t\t}\n\n\t\t\tcancel();\n\t\t} );\n\t}\n\n\t/**\n\t * Returns definitions of toolbars that could potentially be focused, sorted by their importance for the user.\n\t *\n\t * Focusable toolbars candidates are either:\n\t * * already visible,\n\t * * have `beforeFocus()` set in their {@link module:core/editor/editorui~FocusableToolbarDefinition definition} that suggests that\n\t * they might show up when called. Keep in mind that determining whether a toolbar will show up (and become focusable) is impossible\n\t * at this stage because it depends on its implementation, that in turn depends on the editing context (selection).\n\t *\n\t * **Note**: Contextual toolbars take precedence over regular toolbars.\n\t *\n\t * @private\n\t * @returns {Array.<module:core/editor/editorui~FocusableToolbarDefinition>}\n\t */\n\tprivate _getFocusableCandidateToolbarDefinitions() {\n\t\tconst definitions = [];\n\n\t\tfor ( const toolbarDef of this._focusableToolbarDefinitions ) {\n\t\t\tconst { toolbarView, options } = toolbarDef;\n\n\t\t\tif ( isVisible( toolbarView.element ) || options.beforeFocus ) {\n\t\t\t\tdefinitions.push( toolbarDef );\n\t\t\t}\n\t\t}\n\n\t\t// Contextual and already visible toolbars have higher priority. If both are true, the toolbar will always focus first.\n\t\t// For instance, a selected widget toolbar vs inline editor toolbar: both are visible but the widget toolbar is contextual.\n\t\tdefinitions.sort( ( defA, defB ) => getToolbarDefinitionWeight( defA ) - getToolbarDefinitionWeight( defB ) );\n\n\t\treturn definitions;\n\t}\n\n\t/**\n\t * Returns a definition of the toolbar that is currently visible and focused (one of its children has focus).\n\t *\n\t * `null` is returned when no toolbar is currently focused.\n\t *\n\t * @private\n\t * @returns {module:core/editor/editorui~FocusableToolbarDefinition|null}\n\t */\n\tprivate _getCurrentFocusedToolbarDefinition() {\n\t\tfor ( const definition of this._focusableToolbarDefinitions ) {\n\t\t\tif ( definition.toolbarView.element && definition.toolbarView.element.contains( this.focusTracker.focusedElement ) ) {\n\t\t\t\treturn definition;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Focuses a focusable toolbar candidate using its definition.\n\t *\n\t * @private\n\t * @param {module:core/editor/editorui~FocusableToolbarDefinition} candidateToolbarDefinition A definition of the toolbar to focus.\n\t * @returns {Boolean} `true` when the toolbar candidate was focused. `false` otherwise.\n\t */\n\tprivate _focusFocusableCandidateToolbar( candidateToolbarDefinition: FocusableToolbarDefinition ) {\n\t\tconst { toolbarView, options: { beforeFocus } } = candidateToolbarDefinition;\n\n\t\tif ( beforeFocus ) {\n\t\t\tbeforeFocus();\n\t\t}\n\n\t\t// If it didn't show up after beforeFocus(), it's not focusable at all.\n\t\tif ( !isVisible( toolbarView.element ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\ttoolbarView.focus();\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Fired when the editor UI is ready.\n\t *\n\t * Fired before {@link module:engine/controller/datacontroller~DataController#event:ready}.\n\t *\n\t * @event ready\n\t */\n\n\t/**\n\t * Fired whenever the UI (all related components) should be refreshed.\n\t *\n\t * **Note:**: The event is fired after each {@link module:engine/view/document~Document#event:layoutChanged}.\n\t * It can also be fired manually via the {@link module:core/editor/editorui~EditorUI#update} method.\n\t *\n\t * @event update\n\t */\n}\n\nexport type EditorUIReadyEvent = {\n\tname: 'ready';\n\targs: [];\n};\n\nexport type EditorUIUpdateEvent = {\n\tname: 'update';\n\targs: [];\n};\n\n/**\n * A definition of a focusable toolbar. Used by {@link module:core/editor/editorui~EditorUI#addToolbar}.\n *\n * @private\n * @interface module:core/editor/editorui~FocusableToolbarDefinition\n */\n\nexport interface FocusableToolbarDefinition {\n\ttoolbarView: ToolbarView;\n\toptions: FocusableToolbarOptions;\n}\n\nexport interface FocusableToolbarOptions {\n\tisContextual?: boolean;\n\tbeforeFocus?: () => void;\n\tafterBlur?: () => void;\n}\n\n/**\n * An instance of a focusable toolbar view.\n *\n * @member {module:ui/toolbar/toolbarview~ToolbarView} #toolbarView\n */\n\n/**\n * Options of a focusable toolbar view:\n *\n * * `isContextual`: Marks the higher priority toolbar. For example when there are 2 visible toolbars,\n * it allows to distinguish which toolbar should be focused first after the `alt+f10` keystroke\n * * `beforeFocus`: A callback executed before the `ToolbarView` gains focus upon the `Alt+F10` keystroke.\n * * `afterBlur`: A callback executed after `ToolbarView` loses focus upon `Esc` keystroke but before the focus goes back to the `origin`.\n *\n * @member {Object} #options\n */\n\n// Returns a number (weight) for a toolbar definition. Visible toolbars have a higher priority and so do\n// contextual toolbars (displayed in the context of a content, for instance, an image toolbar).\n//\n// A standard invisible toolbar is the heaviest. A visible contextual toolbar is the lightest.\n//\n// @private\n// @param {module:core/editor/editorui~FocusableToolbarDefinition} toolbarDef A toolbar definition to be weighted.\n// @returns {Number}\nfunction getToolbarDefinitionWeight( toolbarDef: FocusableToolbarDefinition ) {\n\tconst { toolbarView, options } = toolbarDef;\n\tlet weight = 10;\n\n\t// Prioritize already visible toolbars. They should get focused first.\n\tif ( isVisible( toolbarView.element ) ) {\n\t\tweight--;\n\t}\n\n\t// Prioritize contextual toolbars. They are displayed at the selection.\n\tif ( options.isContextual ) {\n\t\tweight--;\n\t}\n\n\treturn weight;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/explicit-module-boundary-types */\n\nimport type Editor from '../editor';\n\n/**\n * @module core/editor/utils/dataapimixin\n */\n\n/**\n * Implementation of the {@link module:core/editor/utils/dataapimixin~DataApi}.\n *\n * @mixin DataApiMixin\n * @implements module:core/editor/utils/dataapimixin~DataApi\n */\nexport default function DataApiMixin<Base extends abstract new( ...args: Array<any> ) => Editor>( base: Base ) {\n\tabstract class Mixin extends base implements DataApi {\n\t\tpublic setData( data: string ): void {\n\t\t\tthis.data.set( data );\n\t\t}\n\n\t\tpublic getData( options?: Record<string, unknown> ): string {\n\t\t\treturn this.data.get( options );\n\t\t}\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`.\n{\n\tconst mixin = ( DataApiMixin as any )( Object );\n\n\t( DataApiMixin as any ).setData = mixin.prototype.setData;\n\t( DataApiMixin as any ).getData = mixin.prototype.getData;\n}\n\n/**\n * Interface defining editor methods for setting and getting data to and from the editor's main root element\n * using the {@link module:core/editor/editor~Editor#data data pipeline}.\n *\n * This interface is not a part of the {@link module:core/editor/editor~Editor} class because one may want to implement\n * an editor with multiple root elements, in which case the methods for setting and getting data will need to be implemented\n * differently.\n *\n * @interface DataApi\n */\n\n/**\n * Sets the data in the editor.\n *\n *\t\teditor.setData( '<p>This is editor!</p>' );\n *\n * By default the editor accepts HTML. This can be controlled by injecting a different data processor.\n * See the {@glink features/markdown Markdown output} guide for more details.\n *\n * Note: Not only is the format of the data configurable, but the type of the `setData()`'s parameter does not\n * have to be a string either. You can e.g. accept an object or a DOM `DocumentFragment` if you consider this\n * the right format for you.\n *\n * @method #setData\n * @param {String} data Input data.\n */\n\n/**\n * Gets the data from the editor.\n *\n *\t\teditor.getData(); // -> '<p>This is editor!</p>'\n *\n * By default the editor outputs HTML. This can be controlled by injecting a different data processor.\n * See the {@glink features/markdown Markdown output} guide for more details.\n *\n * Note: Not only is the format of the data configurable, but the type of the `getData()`'s return value does not\n * have to be a string either. You can e.g. return an object or a DOM `DocumentFragment` if you consider this\n * the right format for you.\n *\n * @method #getData\n * @param {Object} [options] Additional configuration for the retrieved data.\n * Editor features may introduce more configuration options that can be set through this parameter.\n * @param {String} [options.rootName='main'] Root name.\n * @param {String} [options.trim='empty'] Whether returned data should be trimmed. This option is set to `'empty'` by default,\n * which means that whenever editor content is considered empty, an empty string is returned. To turn off trimming\n * use `'none'`. In such cases exact content will be returned (for example `'<p>&nbsp;</p>'` for an empty editor).\n * @returns {String} Output data.\n */\n\nexport interface DataApi {\n\tsetData( data: string ): void;\n\tgetData( options?: Record<string, unknown> ): string;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/explicit-module-boundary-types */\n\nimport { CKEditorError, setDataInElement } from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from '../editor';\n\n/**\n * @module core/editor/utils/elementapimixin\n */\n\n/**\n * Implementation of the {@link module:core/editor/utils/elementapimixin~ElementApi}.\n *\n * @mixin ElementApiMixin\n * @implements module:core/editor/utils/elementapimixin~ElementApi\n */\nexport default function ElementApiMixin<Base extends abstract new( ...args: Array<any> ) => Editor>(\n\tbase: Base\n) {\n\tabstract class Mixin extends base implements ElementApi {\n\t\tpublic sourceElement: HTMLElement | undefined;\n\n\t\tpublic updateSourceElement( data: string = this.data.get() ): void {\n\t\t\tif ( !this.sourceElement ) {\n\t\t\t\t/**\n\t\t\t\t * Cannot update the source element of a detached editor.\n\t\t\t\t *\n\t\t\t\t * The {@link ~ElementApi#updateSourceElement `updateSourceElement()`} method cannot be called if you did not\n\t\t\t\t * pass an element to `Editor.create()`.\n\t\t\t\t *\n\t\t\t\t * @error editor-missing-sourceelement\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'editor-missing-sourceelement',\n\t\t\t\t\tthis\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tconst shouldUpdateSourceElement = this.config.get( 'updateSourceElementOnDestroy' );\n\t\t\tconst isSourceElementTextArea = this.sourceElement instanceof HTMLTextAreaElement;\n\n\t\t\t// The data returned by the editor might be unsafe, so we want to prevent rendering\n\t\t\t// unsafe content inside the source element different than <textarea>, which is considered\n\t\t\t// secure. This behaviour could be changed by setting the `updateSourceElementOnDestroy`\n\t\t\t// configuration option to `true`.\n\t\t\tif ( !shouldUpdateSourceElement && !isSourceElementTextArea ) {\n\t\t\t\tsetDataInElement( this.sourceElement, '' );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tsetDataInElement( this.sourceElement, data );\n\t\t}\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`.\n( ElementApiMixin as any ).updateSourceElement = ( ElementApiMixin as any )( Object ).prototype.updateSourceElement;\n\n/**\n * Interface describing an editor that replaced a DOM element (was \"initialized on an element\").\n *\n * Such an editor should provide a method to\n * {@link module:core/editor/utils/elementapimixin~ElementApi#updateSourceElement update the replaced element with the current data}.\n *\n * @interface ElementApi\n */\n\n/**\n * The element on which the editor has been initialized.\n *\n * @readonly\n * @member {HTMLElement} #sourceElement\n */\n\n/**\n * Updates the {@link #sourceElement editor source element}'s content with the data.\n *\n * @method #updateSourceElement\n */\n\nexport interface ElementApi {\n\treadonly sourceElement: HTMLElement | undefined;\n\tupdateSourceElement( data?: string ): void;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/pendingactions\n */\n\nimport ContextPlugin from './contextplugin';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tObservableMixin,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype Observable\n} from '@ckeditor/ckeditor5-utils';\n\n/**\n * The list of pending editor actions.\n *\n * This plugin should be used to synchronise plugins that execute long-lasting actions\n * (e.g. file upload) with the editor integration. It gives the developer who integrates the editor\n * an easy way to check if there are any actions pending whenever such information is needed.\n * All plugins that register a pending action also provide a message about the action that is ongoing\n * which can be displayed to the user. This lets them decide if they want to interrupt the action or wait.\n *\n * Adding and updating a pending action:\n *\n * \t\tconst pendingActions = editor.plugins.get( 'PendingActions' );\n * \t\tconst action = pendingActions.add( 'Upload in progress: 0%.' );\n *\n *\t\t// You can update the message:\n * \t\taction.message = 'Upload in progress: 10%.';\n *\n * Removing a pending action:\n *\n * \t\tconst pendingActions = editor.plugins.get( 'PendingActions' );\n * \t\tconst action = pendingActions.add( 'Unsaved changes.' );\n *\n * \t\tpendingActions.remove( action );\n *\n * Getting pending actions:\n *\n * \t\tconst pendingActions = editor.plugins.get( 'PendingActions' );\n *\n * \t\tconst action1 = pendingActions.add( 'Action 1' );\n * \t\tconst action2 = pendingActions.add( 'Action 2' );\n *\n * \t\tpendingActions.first; // Returns action1\n * \t\tArray.from( pendingActions ); // Returns [ action1, action2 ]\n *\n * This plugin is used by features like {@link module:upload/filerepository~FileRepository} to register their ongoing actions\n * and by features like {@link module:autosave/autosave~Autosave} to detect whether there are any ongoing actions.\n * Read more about saving the data in the {@glink installation/advanced/saving-data Saving and getting data} guide.\n *\n * @extends module:core/contextplugin~ContextPlugin\n */\nexport default class PendingActions extends ContextPlugin implements Iterable<PendingAction> {\n\tdeclare public hasAny: boolean;\n\n\tprivate _actions!: Collection<PendingAction>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'PendingActions' {\n\t\treturn 'PendingActions';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\t/**\n\t\t * Defines whether there is any registered pending action.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #hasAny\n\t\t */\n\t\tthis.set( 'hasAny', false );\n\n\t\t/**\n\t\t * A list of pending actions.\n\t\t *\n\t\t * @private\n\t\t * @type {module:utils/collection~Collection}\n\t\t */\n\t\tthis._actions = new Collection( { idProperty: '_id' } );\n\t\tthis._actions.delegate( 'add', 'remove' ).to( this );\n\t}\n\n\t/**\n\t * Adds an action to the list of pending actions.\n\t *\n\t * This method returns an action object with an observable message property.\n\t * The action object can be later used in the {@link #remove} method. It also allows you to change the message.\n\t *\n\t * @param {String} message The action message.\n\t * @returns {Object} An observable object that represents a pending action.\n\t */\n\tpublic add( message: string ): PendingAction {\n\t\tif ( typeof message !== 'string' ) {\n\t\t\t/**\n\t\t\t * The message must be a string.\n\t\t\t *\n\t\t\t * @error pendingactions-add-invalid-message\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'pendingactions-add-invalid-message', this );\n\t\t}\n\n\t\tconst action = new ( ObservableMixin() )() as PendingAction;\n\n\t\taction.set( 'message', message );\n\t\tthis._actions.add( action );\n\t\tthis.hasAny = true;\n\n\t\treturn action;\n\t}\n\n\t/**\n\t * Removes an action from the list of pending actions.\n\t *\n\t * @param {Object} action An action object.\n\t */\n\tpublic remove( action: PendingAction ): void {\n\t\tthis._actions.remove( action );\n\t\tthis.hasAny = !!this._actions.length;\n\t}\n\n\t/**\n\t * Returns the first action from the list or null if the list is empty\n\t *\n\t * returns {Object|null} The pending action object.\n\t */\n\tpublic get first(): PendingAction | null {\n\t\treturn this._actions.get( 0 );\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * @returns {Iterable.<*>}\n\t */\n\tpublic [ Symbol.iterator ](): Iterator<PendingAction> {\n\t\treturn this._actions[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Fired when an action is added to the list.\n\t *\n\t * @event add\n\t * @param {Object} action The added action.\n\t */\n\n\t/**\n\t * Fired when an action is removed from the list.\n\t *\n\t * @event remove\n\t * @param {Object} action The removed action.\n\t */\n}\n\nexport interface PendingAction extends Observable {\n\tmessage: string;\n}\n\nexport type PendingActionsAddEvent = CollectionAddEvent<PendingAction>;\nexport type PendingActionsRemoveEvent = CollectionRemoveEvent<PendingAction>;\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ PendingActions.pluginName ]: PendingActions;\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.591 10.177 4.243 4.242a1 1 0 0 1-1.415 1.415l-4.242-4.243-4.243 4.243a1 1 0 0 1-1.414-1.415l4.243-4.242L4.52 5.934A1 1 0 0 1 5.934 4.52l4.243 4.243 4.242-4.243a1 1 0 1 1 1.415 1.414l-4.243 4.243z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M6.972 16.615a.997.997 0 0 1-.744-.292l-4.596-4.596a1 1 0 1 1 1.414-1.414l3.926 3.926 9.937-9.937a1 1 0 0 1 1.414 1.415L7.717 16.323a.997.997 0 0 1-.745.292z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core\n */\n\nexport { default as Plugin, type PluginDependencies } from './plugin';\nexport { default as Command } from './command';\nexport { default as MultiCommand } from './multicommand';\nexport { CommandsMap } from './commandcollection';\nexport { PluginsMap } from './plugincollection';\n\nexport { default as Context } from './context';\nexport { default as ContextPlugin } from './contextplugin';\n\nexport { default as Editor, type EditorReadyEvent } from './editor/editor';\nexport { default as EditorUI, type EditorUIReadyEvent, type EditorUIUpdateEvent } from './editor/editorui';\nexport type { EditorConfig, ToolbarConfig, ToolbarConfigItem } from './editor/editorconfig';\n\nexport { default as attachToForm } from './editor/utils/attachtoform';\nexport { default as DataApiMixin } from './editor/utils/dataapimixin';\nexport { default as ElementApiMixin, type ElementApi } from './editor/utils/elementapimixin';\nexport { default as secureSourceElement } from './editor/utils/securesourceelement';\n\nexport { default as PendingActions, type PendingAction } from './pendingactions';\n\nimport cancel from './../theme/icons/cancel.svg';\nimport caption from './../theme/icons/caption.svg';\nimport check from './../theme/icons/check.svg';\nimport cog from './../theme/icons/cog.svg';\nimport eraser from './../theme/icons/eraser.svg';\nimport lowVision from './../theme/icons/low-vision.svg';\nimport image from './../theme/icons/image.svg';\n\nimport alignBottom from './../theme/icons/align-bottom.svg';\nimport alignMiddle from './../theme/icons/align-middle.svg';\nimport alignTop from './../theme/icons/align-top.svg';\nimport alignLeft from './../theme/icons/align-left.svg';\nimport alignCenter from './../theme/icons/align-center.svg';\nimport alignRight from './../theme/icons/align-right.svg';\nimport alignJustify from './../theme/icons/align-justify.svg';\n\nimport objectBlockLeft from './../theme/icons/object-left.svg';\nimport objectCenter from './../theme/icons/object-center.svg';\nimport objectBlockRight from './../theme/icons/object-right.svg';\nimport objectFullWidth from './../theme/icons/object-full-width.svg';\nimport objectInline from './../theme/icons/object-inline.svg';\nimport objectLeft from './../theme/icons/object-inline-left.svg';\nimport objectRight from './../theme/icons/object-inline-right.svg';\n\nimport objectSizeFull from './../theme/icons/object-size-full.svg';\nimport objectSizeLarge from './../theme/icons/object-size-large.svg';\nimport objectSizeSmall from './../theme/icons/object-size-small.svg';\nimport objectSizeMedium from './../theme/icons/object-size-medium.svg';\n\nimport pencil from './../theme/icons/pencil.svg';\nimport pilcrow from './../theme/icons/pilcrow.svg';\nimport quote from './../theme/icons/quote.svg';\nimport threeVerticalDots from './../theme/icons/three-vertical-dots.svg';\n\nimport bold from './../theme/icons/bold.svg';\nimport paragraph from './../theme/icons/paragraph.svg';\nimport plus from './../theme/icons/plus.svg';\nimport text from './../theme/icons/text.svg';\nimport importExport from './../theme/icons/importexport.svg';\n\nexport const icons = {\n\tbold,\n\tcancel,\n\tcaption,\n\tcheck,\n\tcog,\n\teraser,\n\timage,\n\tlowVision,\n\timportExport,\n\tparagraph,\n\tplus,\n\ttext,\n\n\talignBottom,\n\talignMiddle,\n\talignTop,\n\talignLeft,\n\talignCenter,\n\talignRight,\n\talignJustify,\n\n\tobjectLeft,\n\tobjectCenter,\n\tobjectRight,\n\tobjectFullWidth,\n\tobjectInline,\n\tobjectBlockLeft,\n\tobjectBlockRight,\n\n\tobjectSizeFull,\n\tobjectSizeLarge,\n\tobjectSizeSmall,\n\tobjectSizeMedium,\n\n\tpencil,\n\tpilcrow,\n\tquote,\n\tthreeVerticalDots\n};\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M10.187 17H5.773c-.637 0-1.092-.138-1.364-.415-.273-.277-.409-.718-.409-1.323V4.738c0-.617.14-1.062.419-1.332.279-.27.73-.406 1.354-.406h4.68c.69 0 1.288.041 1.793.124.506.083.96.242 1.36.478.341.197.644.447.906.75a3.262 3.262 0 0 1 .808 2.162c0 1.401-.722 2.426-2.167 3.075C15.05 10.175 16 11.315 16 13.01a3.756 3.756 0 0 1-2.296 3.504 6.1 6.1 0 0 1-1.517.377c-.571.073-1.238.11-2 .11zm-.217-6.217H7v4.087h3.069c1.977 0 2.965-.69 2.965-2.072 0-.707-.256-1.22-.768-1.537-.512-.319-1.277-.478-2.296-.478zM7 5.13v3.619h2.606c.729 0 1.292-.067 1.69-.2a1.6 1.6 0 0 0 .91-.765c.165-.267.247-.566.247-.897 0-.707-.26-1.176-.778-1.409-.519-.232-1.31-.348-2.375-.348H7z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 16h9a1 1 0 0 1 0 2H2a1 1 0 0 1 0-2z\\\"/><path d=\\\"M17 1a2 2 0 0 1 2 2v9a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V3a2 2 0 0 1 2-2h14zm0 1.5H3a.5.5 0 0 0-.492.41L2.5 3v9a.5.5 0 0 0 .41.492L3 12.5h14a.5.5 0 0 0 .492-.41L17.5 12V3a.5.5 0 0 0-.41-.492L17 2.5z\\\" fill-opacity=\\\".6\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.333 2 .19 2.263a5.899 5.899 0 0 1 1.458.604L14.714 3.4 16.6 5.286l-1.467 1.733c.263.452.468.942.605 1.46L18 8.666v2.666l-2.263.19a5.899 5.899 0 0 1-.604 1.458l1.467 1.733-1.886 1.886-1.733-1.467a5.899 5.899 0 0 1-1.46.605L11.334 18H8.667l-.19-2.263a5.899 5.899 0 0 1-1.458-.604L5.286 16.6 3.4 14.714l1.467-1.733a5.899 5.899 0 0 1-.604-1.458L2 11.333V8.667l2.262-.189a5.899 5.899 0 0 1 .605-1.459L3.4 5.286 5.286 3.4l1.733 1.467a5.899 5.899 0 0 1 1.46-.605L8.666 2h2.666zM10 6.267a3.733 3.733 0 1 0 0 7.466 3.733 3.733 0 0 0 0-7.466z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m8.636 9.531-2.758 3.94a.5.5 0 0 0 .122.696l3.224 2.284h1.314l2.636-3.736L8.636 9.53zm.288 8.451L5.14 15.396a2 2 0 0 1-.491-2.786l6.673-9.53a2 2 0 0 1 2.785-.49l3.742 2.62a2 2 0 0 1 .491 2.785l-7.269 10.053-2.147-.066z\\\"/><path d=\\\"M4 18h5.523v-1H4zm-2 0h1v-1H2z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M6.91 10.54c.26-.23.64-.21.88.03l3.36 3.14 2.23-2.06a.64.64 0 0 1 .87 0l2.52 2.97V4.5H3.2v10.12l3.71-4.08zm10.27-7.51c.6 0 1.09.47 1.09 1.05v11.84c0 .59-.49 1.06-1.09 1.06H2.79c-.6 0-1.09-.47-1.09-1.06V4.08c0-.58.49-1.05 1.1-1.05h14.38zm-5.22 5.56a1.96 1.96 0 1 1 3.4-1.96 1.96 1.96 0 0 1-3.4 1.96z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M5.085 6.22 2.943 4.078a.75.75 0 1 1 1.06-1.06l2.592 2.59A11.094 11.094 0 0 1 10 5.068c4.738 0 8.578 3.101 8.578 5.083 0 1.197-1.401 2.803-3.555 3.887l1.714 1.713a.75.75 0 0 1-.09 1.138.488.488 0 0 1-.15.084.75.75 0 0 1-.821-.16L6.17 7.304c-.258.11-.51.233-.757.365l6.239 6.24-.006.005.78.78c-.388.094-.78.166-1.174.215l-1.11-1.11h.011L4.55 8.197a7.2 7.2 0 0 0-.665.514l-.112.098 4.897 4.897-.005.006 1.276 1.276a10.164 10.164 0 0 1-1.477-.117l-.479-.479-.009.009-4.863-4.863-.022.031a2.563 2.563 0 0 0-.124.2c-.043.077-.08.158-.108.241a.534.534 0 0 0-.028.133.29.29 0 0 0 .008.072.927.927 0 0 0 .082.226c.067.133.145.26.234.379l3.242 3.365.025.01.59.623c-3.265-.918-5.59-3.155-5.59-4.668 0-1.194 1.448-2.838 3.663-3.93zm7.07.531a4.632 4.632 0 0 1 1.108 5.992l.345.344.046-.018a9.313 9.313 0 0 0 2-1.112c.256-.187.5-.392.727-.613.137-.134.27-.277.392-.431.072-.091.141-.185.203-.286.057-.093.107-.19.148-.292a.72.72 0 0 0 .036-.12.29.29 0 0 0 .008-.072.492.492 0 0 0-.028-.133.999.999 0 0 0-.036-.096 2.165 2.165 0 0 0-.071-.145 2.917 2.917 0 0 0-.125-.2 3.592 3.592 0 0 0-.263-.335 5.444 5.444 0 0 0-.53-.523 7.955 7.955 0 0 0-1.054-.768 9.766 9.766 0 0 0-1.879-.891c-.337-.118-.68-.219-1.027-.301zm-2.85.21-.069.002a.508.508 0 0 0-.254.097.496.496 0 0 0-.104.679.498.498 0 0 0 .326.199l.045.005c.091.003.181.003.272.012a2.45 2.45 0 0 1 2.017 1.513c.024.061.043.125.069.185a.494.494 0 0 0 .45.287h.008a.496.496 0 0 0 .35-.158.482.482 0 0 0 .13-.335.638.638 0 0 0-.048-.219 3.379 3.379 0 0 0-.36-.723 3.438 3.438 0 0 0-2.791-1.543l-.028-.001h-.013z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g clip-path=\\\"url(#a)\\\"><path clip-rule=\\\"evenodd\\\" d=\\\"M19 4.5 14 0H3v12.673l.868-1.041c.185-.222.4-.402.632-.54V1.5h8v5h5v7.626a2.24 2.24 0 0 1 1.5.822V4.5ZM14 5V2l3.3 3H14Zm-3.692 12.5c.062.105.133.206.213.303L11.52 19H8v-.876a2.243 2.243 0 0 0 1.82-.624h.488Zm7.518-.657a.75.75 0 0 0-1.152-.96L15.5 17.29V12H14v5.29l-1.174-1.408a.75.75 0 0 0-1.152.96l2.346 2.816a.95.95 0 0 0 1.46 0l2.346-2.815Zm-15.056-.38a.75.75 0 0 1-.096-1.056l2.346-2.815a.95.95 0 0 1 1.46 0l2.346 2.815a.75.75 0 1 1-1.152.96L6.5 14.96V20H5v-5.04l-1.174 1.408a.75.75 0 0 1-1.056.096Z\\\"/></g><defs><clipPath id=\\\"a\\\"><path d=\\\"M0 0h20v20H0z\\\"/></clipPath></defs></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M10.5 5.5H7v5h3.5a2.5 2.5 0 1 0 0-5zM5 3h6.5v.025a5 5 0 0 1 0 9.95V13H7v4a1 1 0 0 1-1 1H5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M10 2a1 1 0 0 0-1 1v6H3a1 1 0 1 0 0 2h6v6a1 1 0 1 0 2 0v-6h6a1 1 0 1 0 0-2h-6V3a1 1 0 0 0-1-1Z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g clip-path=\\\"url(#a)\\\"><path d=\\\"M9.816 11.5 7.038 4.785 4.261 11.5h5.555Zm.62 1.5H3.641l-1.666 4.028H.312l5.789-14h1.875l5.789 14h-1.663L10.436 13Z\\\"/><path clip-rule=\\\"evenodd\\\" d=\\\"m12.09 17-.534-1.292.848-1.971.545 1.319L12.113 17h-.023Zm1.142-5.187.545 1.319L15.5 9.13l1.858 4.316h-3.45l.398.965h3.467L18.887 17H20l-3.873-9h-1.254l-1.641 3.813Z\\\"/></g><defs><clipPath id=\\\"a\\\"><path d=\\\"M0 0h20v20H0z\\\"/></clipPath></defs></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m9.239 13.938-2.88-1.663a.75.75 0 0 1 .75-1.3L9 12.067V4.75a.75.75 0 1 1 1.5 0v7.318l1.89-1.093a.75.75 0 0 1 .75 1.3l-2.879 1.663a.752.752 0 0 1-.511.187.752.752 0 0 1-.511-.187zM4.25 17a.75.75 0 1 1 0-1.5h10.5a.75.75 0 0 1 0 1.5H4.25z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M9.75 11.875a.752.752 0 0 1 .508.184l2.883 1.666a.75.75 0 0 1-.659 1.344l-.091-.044-1.892-1.093.001 4.318a.75.75 0 1 1-1.5 0v-4.317l-1.89 1.092a.75.75 0 0 1-.75-1.3l2.879-1.663a.752.752 0 0 1 .51-.187zM15.25 9a.75.75 0 1 1 0 1.5H4.75a.75.75 0 1 1 0-1.5h10.5zM9.75.375a.75.75 0 0 1 .75.75v4.318l1.89-1.093.092-.045a.75.75 0 0 1 .659 1.344l-2.883 1.667a.752.752 0 0 1-.508.184.752.752 0 0 1-.511-.187L6.359 5.65a.75.75 0 0 1 .75-1.299L9 5.442V1.125a.75.75 0 0 1 .75-.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m10.261 7.062 2.88 1.663a.75.75 0 0 1-.75 1.3L10.5 8.933v7.317a.75.75 0 1 1-1.5 0V8.932l-1.89 1.093a.75.75 0 0 1-.75-1.3l2.879-1.663a.752.752 0 0 1 .511-.187.752.752 0 0 1 .511.187zM15.25 4a.75.75 0 1 1 0 1.5H4.75a.75.75 0 0 1 0-1.5h10.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 4c0 .414.336.75.75.75h9.929a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0-8c0 .414.336.75.75.75h9.929a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm2.286 4c0 .414.336.75.75.75h9.928a.75.75 0 1 0 0-1.5H5.036a.75.75 0 0 0-.75.75zm0-8c0 .414.336.75.75.75h9.928a.75.75 0 1 0 0-1.5H5.036a.75.75 0 0 0-.75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M18 3.75a.75.75 0 0 1-.75.75H2.75a.75.75 0 1 1 0-1.5h14.5a.75.75 0 0 1 .75.75zm0 8a.75.75 0 0 1-.75.75H2.75a.75.75 0 1 1 0-1.5h14.5a.75.75 0 0 1 .75.75zm0 4a.75.75 0 0 1-.75.75H7.321a.75.75 0 1 1 0-1.5h9.929a.75.75 0 0 1 .75.75zm0-8a.75.75 0 0 1-.75.75H7.321a.75.75 0 1 1 0-1.5h9.929a.75.75 0 0 1 .75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 4c0 .414.336.75.75.75h9.929a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0-8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm11.5 9H18v1.5h-4.5zm0-3H18v1.5h-4.5zm0-3H18v1.5h-4.5zM2 15h16v1.5H2z\\\"/><path d=\\\"M12.003 7v5.5a1 1 0 0 1-1 1H2.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H3.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2z\\\"/><path d=\\\"M15.003 7v5.5a1 1 0 0 1-1 1H5.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H6.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2zm0-9h5v1.5H2zm0 3h5v1.5H2zm0 3h5v1.5H2z\\\"/><path d=\\\"M18.003 7v5.5a1 1 0 0 1-1 1H8.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H9.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2z\\\"/><path d=\\\"M18 7v5.5a1 1 0 0 1-1 1H3a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h14a1 1 0 0 1 1 1zm-1.505.5H3.504V12h12.991V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm11.5 9H18v1.5h-4.5zM2 15h16v1.5H2z\\\"/><path d=\\\"M12.003 7v5.5a1 1 0 0 1-1 1H2.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H3.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2z\\\"/><path d=\\\"M12.003 7v5.5a1 1 0 0 1-1 1H2.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H3.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2z\\\"/><path d=\\\"M18.003 7v5.5a1 1 0 0 1-1 1H8.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H9.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" viewBox=\\\"0 0 20 20\\\"><path d=\\\"M2.5 17v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zM1 15.5v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm0-2v1h-1v-1h1zm-19 0v1H0v-1h1zM14.5 2v1h-1V2h1zm2 0v1h-1V2h1zm2 0v1h-1V2h1zm-8 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm8 0v1h-1V2h1zm-10 0v1h-1V2h1z\\\"/><path d=\\\"M18.095 2H1.905C.853 2 0 2.895 0 4v12c0 1.105.853 2 1.905 2h16.19C19.147 18 20 17.105 20 16V4c0-1.105-.853-2-1.905-2zm0 1.5c.263 0 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d=\\\"M2.5 17v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zM1 15.5v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm0-2v1h-1v-1h1zm-19 0v1H0v-1h1zM14.5 2v1h-1V2h1zm2 0v1h-1V2h1zm2 0v1h-1V2h1zm-8 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm8 0v1h-1V2h1zm-10 0v1h-1V2h1z\\\"/><path d=\\\"M7 10H2a2 2 0 0 0-2 2v4a2 2 0 0 0 2 2h5a2 2 0 0 0 2-2v-4a2 2 0 0 0-2-2zm0 1.5a.5.5 0 0 1 .5.5v4a.5.5 0 0 1-.5.5H2a.5.5 0 0 1-.5-.5v-4a.5.5 0 0 1 .5-.5h5z\\\"/></svg>\";","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" viewBox=\\\"0 0 20 20\\\"><path d=\\\"M2.5 17v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zM1 15.5v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm0-2v1h-1v-1h1zm-19 0v1H0v-1h1zM14.5 2v1h-1V2h1zm2 0v1h-1V2h1zm2 0v1h-1V2h1zm-8 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm8 0v1h-1V2h1zm-10 0v1h-1V2h1z\\\"/><path d=\\\"M10 8H2a2 2 0 0 0-2 2v6a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2v-6a2 2 0 0 0-2-2zm0 1.5a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-.5.5H2a.5.5 0 0 1-.5-.5v-6a.5.5 0 0 1 .5-.5h8z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m7.3 17.37-.061.088a1.518 1.518 0 0 1-.934.535l-4.178.663-.806-4.153a1.495 1.495 0 0 1 .187-1.058l.056-.086L8.77 2.639c.958-1.351 2.803-1.076 4.296-.03 1.497 1.047 2.387 2.693 1.433 4.055L7.3 17.37zM9.14 4.728l-5.545 8.346 3.277 2.294 5.544-8.346L9.14 4.728zM6.07 16.512l-3.276-2.295.53 2.73 2.746-.435zM9.994 3.506 13.271 5.8c.316-.452-.16-1.333-1.065-1.966-.905-.634-1.895-.78-2.212-.328zM8 18.5 9.375 17H19v1.5H8z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M6.999 2H15a1 1 0 0 1 0 2h-1.004v13a1 1 0 1 1-2 0V4H8.999v13a1 1 0 1 1-2 0v-7A4 4 0 0 1 3 6a4 4 0 0 1 3.999-4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 10.423a6.5 6.5 0 0 1 6.056-6.408l.038.67C6.448 5.423 5.354 7.663 5.22 10H9c.552 0 .5.432.5.986v4.511c0 .554-.448.503-1 .503h-5c-.552 0-.5-.449-.5-1.003v-4.574zm8 0a6.5 6.5 0 0 1 6.056-6.408l.038.67c-2.646.739-3.74 2.979-3.873 5.315H17c.552 0 .5.432.5.986v4.511c0 .554-.448.503-1 .503h-5c-.552 0-.5-.449-.5-1.003v-4.574z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><circle cx=\\\"9.5\\\" cy=\\\"4.5\\\" r=\\\"1.5\\\"/><circle cx=\\\"9.5\\\" cy=\\\"10.5\\\" r=\\\"1.5\\\"/><circle cx=\\\"9.5\\\" cy=\\\"16.5\\\" r=\\\"1.5\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { DomEmitter } from '@ckeditor/ckeditor5-utils';\n\n/**\n * @module ui/bindings/clickoutsidehandler\n */\n\n/* global document */\n\n/**\n * Handles clicking **outside** of a specified set of elements, then fires an action.\n *\n * **Note**: Actually, the action is executed upon `mousedown`, not `click`. It prevents\n * certain issues when the user keeps holding the mouse button and the UI cannot react\n * properly.\n *\n * @param {Object} options Configuration options.\n * @param {module:utils/dom/emittermixin~Emitter} options.emitter The emitter to which this behavior\n * should be added.\n * @param {Function} options.activator Function returning a `Boolean`, to determine whether the handler is active.\n * @param {Array.<HTMLElement>} options.contextElements HTML elements that determine the scope of the\n * handler. Clicking any of them or their descendants will **not** fire the callback.\n * @param {Function} options.callback An action executed by the handler.\n */\nexport default function clickOutsideHandler(\n\t{ emitter, activator, callback, contextElements }: {\n\t\temitter: DomEmitter;\n\t\tactivator: () => boolean;\n\t\tcontextElements: Array<HTMLElement>;\n\t\tcallback: () => void;\n\t}\n): void {\n\temitter.listenTo( document, 'mousedown', ( evt, domEvt ) => {\n\t\tif ( !activator() ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check if `composedPath` is `undefined` in case the browser does not support native shadow DOM.\n\t\t// Can be removed when all supported browsers support native shadow DOM.\n\t\tconst path = typeof domEvt.composedPath == 'function' ? domEvt.composedPath() : [];\n\n\t\tfor ( const contextElement of contextElements ) {\n\t\t\tif ( contextElement.contains( domEvt.target as Node ) || path.includes( contextElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\tcallback();\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type View from '../view';\n\n/**\n * @module ui/bindings/injectcsstransitiondisabler\n */\n\n/**\n * A decorator that brings the possibility to temporarily disable CSS transitions using\n * {@link module:ui/view~View} methods. It is helpful when, for instance, the transitions should not happen\n * when the view is first displayed but they should work normal in other cases.\n *\n * The methods to control the CSS transitions are:\n * * `disableCssTransitions()` – Adds the `.ck-transitions-disabled` class to the\n * {@link module:ui/view~View#element view element}.\n * * `enableCssTransitions()` – Removes the `.ck-transitions-disabled` class from the\n * {@link module:ui/view~View#element view element}.\n *\n * **Note**: This helper extends the {@link module:ui/view~View#template template} and must be used **after**\n * {@link module:ui/view~View#setTemplate} is called:\n *\n *\t\timport injectCssTransitionDisabler from '@ckeditor/ckeditor5-ui/src/bindings/injectcsstransitiondisabler';\n *\n *\t\tclass MyView extends View {\n *\t\t\tconstructor() {\n *\t\t\t\tsuper();\n *\n *\t\t\t\t// ...\n *\n *\t\t\t\tthis.setTemplate( { ... } );\n *\n *\t\t\t\t// ...\n *\n *\t\t\t\tinjectCssTransitionDisabler( this );\n *\n *\t\t\t\t// ...\n *\t\t\t}\n *\t\t}\n *\n * The usage comes down to:\n *\n *\t\tconst view = new MyView();\n *\n *\t\t// ...\n *\n *\t\tview.disableCssTransitions();\n *\t\tview.show();\n *\t\tview.enableCssTransitions();\n *\n * @param {module:ui/view~View} view View instance that should get this functionality.\n */\nexport default function injectCssTransitionDisabler( view: View ): asserts view is ViewWithCssTransitionDisabler {\n\tconst decorated = view as ViewWithCssTransitionDisabler;\n\n\tdecorated.set( '_isCssTransitionsDisabled', false );\n\n\tdecorated.disableCssTransitions = () => {\n\t\tdecorated._isCssTransitionsDisabled = true;\n\t};\n\n\tdecorated.enableCssTransitions = () => {\n\t\tdecorated._isCssTransitionsDisabled = false;\n\t};\n\n\tdecorated.extendTemplate( {\n\t\tattributes: {\n\t\t\tclass: [\n\t\t\t\tdecorated.bindTemplate.if( '_isCssTransitionsDisabled', 'ck-transitions-disabled' )\n\t\t\t]\n\t\t}\n\t} );\n}\n\nexport type ViewWithCssTransitionDisabler = View & {\n\t_isCssTransitionsDisabled: boolean;\n\tdisableCssTransitions(): void;\n\tenableCssTransitions(): void;\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type View from '../view';\n\n/**\n * @module ui/bindings/submithandler\n */\n\n/**\n * A handler useful for {@link module:ui/view~View views} working as HTML forms. It intercepts a native DOM\n * `submit` event, prevents the default web browser behavior (navigation and page reload) and\n * fires the `submit` event on a view instead. Such a custom event can be then used by any\n * {@link module:utils/dom/emittermixin~Emitter emitter}, e.g. to serialize the form data.\n *\n *\t\timport submitHandler from '@ckeditor/ckeditor5-ui/src/bindings/submithandler';\n *\n *\t\t// ...\n *\n *\t\tclass AnyFormView extends View {\n *\t\t\tconstructor() {\n *\t\t\t\tsuper();\n *\n *\t\t\t\t// ...\n *\n *\t\t\t\tsubmitHandler( {\n *\t\t\t\t\tview: this\n *\t\t\t\t} );\n *\t\t\t}\n *\t\t}\n *\n *\t\t// ...\n *\n *\t\tconst view = new AnyFormView();\n *\n *\t\t// A sample listener attached by an emitter working with the view.\n *\t\tthis.listenTo( view, 'submit', () => {\n *\t\t\tsaveTheFormData();\n *\t\t\thideTheForm();\n *\t\t} );\n *\n * @param {Object} [options] Configuration options.\n * @param {module:ui/view~View} options.view The view which DOM `submit` events should be handled.\n */\nexport default function submitHandler( { view }: { view: View } ): void {\n\tview.listenTo( view.element!, 'submit', ( evt, domEvt ) => {\n\t\tdomEvt.preventDefault();\n\t\tview.fire<SubmitHandlerEvent>( 'submit' );\n\t}, { useCapture: true } );\n}\n\nexport type SubmitHandlerEvent = {\n\tname: 'submit';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { FocusTracker, KeystrokeHandler } from '@ckeditor/ckeditor5-utils';\nimport type { FocusableView } from '../focuscycler';\nimport type ViewCollection from '../viewcollection';\n\n/**\n * @module ui/bindings/addkeyboardhandlingforgrid\n */\n\n/**\n * A helper that adds a keyboard navigation support (arrow up/down/left/right) for grids.\n *\n * @param {Object} options Configuration options.\n * @param {module:utils/keystrokehandler~KeystrokeHandler} options.keystrokeHandler Keystroke handler to register navigation with arrow\n * keys.\n * @param {module:utils/focustracker~FocusTracker} options.focusTracker A focus tracker for grid elements.\n * @param {module:ui/viewcollection~ViewCollection} options.gridItems A collection of grid items.\n * @param {Number|Function} options.numberOfColumns Number of columns in the grid. Can be specified as a function that returns\n * the number (e.g. for responsive grids).\n * @param {String|undefined} options.uiLanguageDirection String of ui language direction.\n */\nexport default function addKeyboardHandlingForGrid(\n\t{ keystrokeHandler, focusTracker, gridItems, numberOfColumns, uiLanguageDirection }: {\n\t\tkeystrokeHandler: KeystrokeHandler;\n\t\tfocusTracker: FocusTracker;\n\t\tgridItems: ViewCollection;\n\t\tnumberOfColumns: number | ( () => number );\n\t\tuiLanguageDirection?: string;\n\t}\n): void {\n\tconst getNumberOfColumns = typeof numberOfColumns === 'number' ? () => numberOfColumns : numberOfColumns;\n\n\tkeystrokeHandler.set( 'arrowright', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\treturn uiLanguageDirection === 'rtl' ?\n\t\t\tgetLeftElementIndex( focusedElementIndex, gridItems.length ) :\n\t\t\tgetRightElementIndex( focusedElementIndex, gridItems.length );\n\t} ) );\n\n\tkeystrokeHandler.set( 'arrowleft', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\treturn uiLanguageDirection === 'rtl' ?\n\t\t\tgetRightElementIndex( focusedElementIndex, gridItems.length ) :\n\t\t\tgetLeftElementIndex( focusedElementIndex, gridItems.length );\n\t} ) );\n\n\tkeystrokeHandler.set( 'arrowup', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\tlet nextIndex = focusedElementIndex - getNumberOfColumns();\n\n\t\tif ( nextIndex < 0 ) {\n\t\t\tnextIndex = focusedElementIndex + getNumberOfColumns() * Math.floor( gridItems.length / getNumberOfColumns() );\n\n\t\t\tif ( nextIndex > gridItems.length - 1 ) {\n\t\t\t\tnextIndex -= getNumberOfColumns();\n\t\t\t}\n\t\t}\n\n\t\treturn nextIndex;\n\t} ) );\n\n\tkeystrokeHandler.set( 'arrowdown', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\tlet nextIndex = focusedElementIndex + getNumberOfColumns();\n\n\t\tif ( nextIndex > gridItems.length - 1 ) {\n\t\t\tnextIndex = focusedElementIndex % getNumberOfColumns();\n\t\t}\n\n\t\treturn nextIndex;\n\t} ) );\n\n\tfunction getGridItemFocuser( getIndexToFocus: ( focusedElementIndex: number, gridItems: ViewCollection ) => number ) {\n\t\treturn ( evt: KeyboardEvent ) => {\n\t\t\tconst focusedElement = gridItems.find( item => item.element === focusTracker.focusedElement );\n\t\t\tconst focusedElementIndex = gridItems.getIndex( focusedElement! );\n\t\t\tconst nextIndexToFocus = getIndexToFocus( focusedElementIndex, gridItems );\n\n\t\t\t( gridItems.get( nextIndexToFocus ) as FocusableView ).focus();\n\n\t\t\tevt.stopPropagation();\n\t\t\tevt.preventDefault();\n\t\t};\n\t}\n\n\t// Function returning the next index.\n\t//\n\t// before: [ ][x][ ]\tafter: [ ][ ][x]\n\t// index = 1            index = 2\n\t//\n\t// If current index is last, function returns first index.\n\t//\n\t// before: [ ][ ][x]\tafter: [x][ ][ ]\n\t// index = 2            index = 0\n\t//\n\t// @param {number} [elementIndex] Number of current index.\n\t// @param {number} [collectionLength] A count of collection items.\n\tfunction getRightElementIndex( elementIndex: number, collectionLength: number ) {\n\t\tif ( elementIndex === collectionLength - 1 ) {\n\t\t\treturn 0;\n\t\t} else {\n\t\t\treturn elementIndex + 1;\n\t\t}\n\t}\n\n\t// Function returning the previous index.\n\t//\n\t// before: [ ][x][ ]\tafter: [x][ ][ ]\n\t// index = 1            index = 0\n\t//\n\t// If current index is first, function returns last index.\n\t//\n\t// before: [x][ ][ ]\tafter: [ ][ ][x]\n\t// index = 0            index = 2\n\t//\n\t// @param {number} [elementIndex] Number of current index.\n\t// @param {number} [collectionLength] A count of collection items.\n\tfunction getLeftElementIndex( elementIndex: number, collectionLength: number ) {\n\t\tif ( elementIndex === 0 ) {\n\t\t\treturn collectionLength - 1;\n\t\t} else {\n\t\t\treturn elementIndex - 1;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editorui/bodycollection\n */\n\n/* globals document */\n\nimport Template from '../template';\nimport ViewCollection from '../viewcollection';\n\nimport { createElement, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport type View from '../view';\n\n/**\n * This is a special {@link module:ui/viewcollection~ViewCollection} dedicated to elements that are detached\n * from the DOM structure of the editor, like panels, icons, etc.\n *\n * The body collection is available in the {@link module:ui/editorui/editoruiview~EditorUIView#body `editor.ui.view.body`} property.\n * Any plugin can add a {@link module:ui/view~View view} to this collection.\n * These views will render in a container placed directly in the `<body>` element.\n * The editor will detach and destroy this collection when the editor will be {@link module:core/editor/editor~Editor#destroy destroyed}.\n *\n * If you need to control the life cycle of the body collection on your own, you can create your own instance of this class.\n *\n * A body collection will render itself automatically in the DOM body element as soon as you call {@link ~BodyCollection#attachToDom}.\n * If you create multiple body collections, this class will create a special wrapper element in the DOM to limit the number of\n * elements created directly in the body and remove it when the last body collection will be\n * {@link ~BodyCollection#detachFromDom detached}.\n *\n * @extends module:ui/viewcollection~ViewCollection\n */\nexport default class BodyCollection extends ViewCollection {\n\tpublic readonly locale: Locale;\n\n\tprivate _bodyCollectionContainer?: HTMLElement;\n\n\t/**\n\t * Creates a new instance of the {@link module:ui/editorui/bodycollection~BodyCollection}.\n\t *\n\t * @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor editor's locale} instance.\n\t * @param {Iterable.<module:ui/view~View>} [initialItems] The initial items of the collection.\n\t */\n\tconstructor( locale: Locale, initialItems: Iterable<View> = [] ) {\n\t\tsuper( initialItems );\n\n\t\t/**\n\t\t * The {@link module:core/editor/editor~Editor#locale editor's locale} instance.\n\t\t * See the view {@link module:ui/view~View#locale locale} property.\n\t\t *\n\t\t * @member {module:utils/locale~Locale}\n\t\t */\n\t\tthis.locale = locale;\n\t}\n\n\t/**\n\t * Attaches the body collection to the DOM body element. You need to execute this method to render the content of\n\t * the body collection.\n\t */\n\tpublic attachToDom(): void {\n\t\t/**\n\t\t * The element holding elements of the body region.\n\t\t *\n\t\t * @protected\n\t\t * @member {HTMLElement} #_bodyCollectionContainer\n\t\t */\n\t\tthis._bodyCollectionContainer = new Template( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-reset_all',\n\t\t\t\t\t'ck-body',\n\t\t\t\t\t'ck-rounded-corners'\n\t\t\t\t],\n\t\t\t\tdir: this.locale.uiLanguageDirection\n\t\t\t},\n\t\t\tchildren: this\n\t\t} ).render() as HTMLElement;\n\n\t\tlet wrapper = document.querySelector( '.ck-body-wrapper' );\n\n\t\tif ( !wrapper ) {\n\t\t\twrapper = createElement( document, 'div', { class: 'ck-body-wrapper' } );\n\t\t\tdocument.body.appendChild( wrapper );\n\t\t}\n\n\t\twrapper.appendChild( this._bodyCollectionContainer );\n\t}\n\n\t/**\n\t * Detaches the collection from the DOM structure. Use this method when you do not need to use the body collection\n\t * anymore to clean-up the DOM structure.\n\t */\n\tpublic detachFromDom(): void {\n\t\tsuper.destroy();\n\n\t\tif ( this._bodyCollectionContainer ) {\n\t\t\tthis._bodyCollectionContainer.remove();\n\t\t}\n\n\t\tconst wrapper = document.querySelector( '.ck-body-wrapper' );\n\n\t\tif ( wrapper && wrapper.childElementCount == 0 ) {\n\t\t\twrapper.remove();\n\t\t}\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./icon.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* global DOMParser */\n\n/**\n * @module ui/icon/iconview\n */\n\nimport View from '../view';\n\nimport '../../theme/components/icon/icon.css';\nimport type { ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The icon view class.\n *\n * @extends module:ui/view~View\n */\nexport default class IconView extends View {\n\tdeclare public content: string | undefined;\n\tdeclare public viewBox: string;\n\tdeclare public fillColor: string;\n\tdeclare public isColorInherited: boolean;\n\tdeclare public static presentationalAttributeNames: Array<string>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * The SVG source of the icon.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #content\n\t\t */\n\t\tthis.set( 'content', '' );\n\n\t\t/**\n\t\t * This attribute specifies the boundaries to which the\n\t\t * icon content should stretch.\n\t\t *\n\t\t * @observable\n\t\t * @default '0 0 20 20'\n\t\t * @member {String} #viewBox\n\t\t */\n\t\tthis.set( 'viewBox', '0 0 20 20' );\n\n\t\t/**\n\t\t * The fill color of the child `path.ck-icon__fill`.\n\t\t *\n\t\t * @observable\n\t\t * @default ''\n\t\t * @member {String} #fillColor\n\t\t */\n\t\tthis.set( 'fillColor', '' );\n\n\t\t/**\n\t\t * When set true (default), all parts of the icon inherit the fill color from the CSS `color` property of the\n\t\t * icon's DOM parent.\n\t\t *\n\t\t * This effectively makes the icon monochromatic and allows it to change its fill color dynamically, for instance,\n\t\t * when a {@link module:ui/button/buttonview~ButtonView} displays an icon and it switches between different states\n\t\t * (pushed, hovered, etc.) the icon will follow along.\n\t\t *\n\t\t * **Note**: For the monochromatic icon to render properly, it must be made up of shapes that can be filled\n\t\t * with color instead of, for instance, paths with strokes. Be sure to use the *outline stroke* tool\n\t\t * (the name could be different in your vector graphics editor) before exporting your icon. Also, remove any\n\t\t * excess `fill=\"...\"` attributes that could break the color inheritance.\n\t\t *\n\t\t * **Note**: If you want to preserve the original look of your icon and disable dynamic color inheritance,\n\t\t * set this flag to `false`.\n\t\t *\n\t\t * @observable\n\t\t * @default true\n\t\t * @member {Boolean} #isColorInherited\n\t\t */\n\t\tthis.set( 'isColorInherited', true );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'svg',\n\t\t\tns: 'http://www.w3.org/2000/svg',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-icon',\n\n\t\t\t\t\t// Exclude icon internals from the CSS reset to allow rich (non-monochromatic) icons\n\t\t\t\t\t// (https://github.com/ckeditor/ckeditor5/issues/12599).\n\t\t\t\t\t'ck-reset_all-excluded',\n\n\t\t\t\t\t// The class to remove the dynamic color inheritance is toggleable\n\t\t\t\t\t// (https://github.com/ckeditor/ckeditor5/issues/12599).\n\t\t\t\t\tbind.if( 'isColorInherited', 'ck-icon_inherit-color' )\n\t\t\t\t],\n\t\t\t\tviewBox: bind.to( 'viewBox' )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis._updateXMLContent();\n\t\tthis._colorFillPaths();\n\n\t\t// This is a hack for lack of innerHTML binding.\n\t\t// See: https://github.com/ckeditor/ckeditor5-ui/issues/99.\n\t\tthis.on<ObservableChangeEvent>( 'change:content', () => {\n\t\t\tthis._updateXMLContent();\n\t\t\tthis._colorFillPaths();\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent>( 'change:fillColor', () => {\n\t\t\tthis._colorFillPaths();\n\t\t} );\n\t}\n\n\t/**\n\t * Updates the {@link #element} with the value of {@link #content}.\n\t *\n\t * @private\n\t */\n\tprivate _updateXMLContent() {\n\t\tif ( this.content ) {\n\t\t\tconst parsed = new DOMParser().parseFromString( this.content.trim(), 'image/svg+xml' );\n\t\t\tconst svg = parsed.querySelector( 'svg' )!;\n\t\t\tconst viewBox = svg.getAttribute( 'viewBox' );\n\n\t\t\tif ( viewBox ) {\n\t\t\t\tthis.viewBox = viewBox;\n\t\t\t}\n\n\t\t\t// Preserve presentational attributes of the <svg> element from the source.\n\t\t\t// They can affect rendering of the entire icon (https://github.com/ckeditor/ckeditor5/issues/12597).\n\t\t\tfor ( const { name, value } of Array.from( svg.attributes ) ) {\n\t\t\t\tif ( IconView.presentationalAttributeNames.includes( name ) ) {\n\t\t\t\t\tthis.element!.setAttribute( name, value );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\twhile ( this.element!.firstChild ) {\n\t\t\t\tthis.element!.removeChild( this.element!.firstChild );\n\t\t\t}\n\n\t\t\twhile ( svg.childNodes.length > 0 ) {\n\t\t\t\tthis.element!.appendChild( svg.childNodes[ 0 ] );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Fills all child `path.ck-icon__fill` with the `#fillColor`.\n\t *\n\t * @private\n\t */\n\tprivate _colorFillPaths() {\n\t\tif ( this.fillColor ) {\n\t\t\tthis.element!.querySelectorAll( '.ck-icon__fill' ).forEach( path => {\n\t\t\t\t( path as HTMLElement ).style.fill = this.fillColor;\n\t\t\t} );\n\t\t}\n\t}\n}\n\n/**\n * A list of presentational attributes that can be set on the `<svg>` element and should be preserved\n * when the icon {@link module:ui/icon/iconview~IconView#content content} is loaded.\n *\n * See the [specification](https://www.w3.org/TR/SVG/styling.html#TermPresentationAttribute) to learn more.\n *\n * @protected\n * @member {Array.<String>} module:ui/icon/iconview~IconView.presentationalAttributeNames\n */\nIconView.presentationalAttributeNames = [\n\t'alignment-baseline', 'baseline-shift', 'clip-path', 'clip-rule', 'color', 'color-interpolation',\n\t'color-interpolation-filters', 'color-rendering', 'cursor', 'direction', 'display', 'dominant-baseline', 'fill', 'fill-opacity',\n\t'fill-rule', 'filter', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style',\n\t'font-variant', 'font-weight', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start',\n\t'mask', 'opacity', 'overflow', 'paint-order', 'pointer-events', 'shape-rendering', 'stop-color', 'stop-opacity', 'stroke',\n\t'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width',\n\t'text-anchor', 'text-decoration', 'text-overflow', 'text-rendering', 'transform', 'unicode-bidi', 'vector-effect',\n\t'visibility', 'white-space', 'word-spacing', 'writing-mode'\n];\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./button.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/button/buttonview\n */\n\nimport View from '../view';\nimport IconView from '../icon/iconview';\n\nimport {\n\tenv,\n\tgetEnvKeystrokeText,\n\tuid,\n\ttype Locale\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/button/button.css';\n\nimport type { TemplateDefinition } from '../template';\nimport type ViewCollection from '../viewcollection';\nimport type { default as Button, ButtonExecuteEvent } from './button';\n\n/**\n * The button view class.\n *\n *\t\tconst view = new ButtonView();\n *\n *\t\tview.set( {\n *\t\t\tlabel: 'A button',\n *\t\t\tkeystroke: 'Ctrl+B',\n *\t\t\ttooltip: true,\n *\t\t\twithText: true\n *\t\t} );\n *\n *\t\tview.render();\n *\n *\t\tdocument.body.append( view.element );\n *\n * @extends module:ui/view~View\n * @implements module:ui/button/button~Button\n */\nexport default class ButtonView extends View implements Button {\n\tpublic readonly children: ViewCollection;\n\tpublic readonly labelView: View;\n\tpublic readonly iconView: IconView;\n\tpublic readonly keystrokeView: View;\n\n\tdeclare public class: string | undefined;\n\tdeclare public labelStyle: string | undefined;\n\tdeclare public icon: string | undefined;\n\tdeclare public isEnabled: boolean;\n\tdeclare public isOn: boolean;\n\tdeclare public isVisible: boolean;\n\tdeclare public isToggleable: boolean;\n\tdeclare public keystroke: string | undefined;\n\tdeclare public label: string | undefined;\n\tdeclare public tabindex: number;\n\tdeclare public tooltip: Button[ 'tooltip' ];\n\tdeclare public tooltipPosition: Button[ 'tooltipPosition' ];\n\tdeclare public type: Button[ 'type' ];\n\tdeclare public withText: boolean;\n\tdeclare public withKeystroke: boolean;\n\tdeclare public _tooltipString: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\t\tconst ariaLabelUid = uid();\n\n\t\t// Implement the Button interface.\n\t\tthis.set( 'class', undefined );\n\t\tthis.set( 'labelStyle', undefined );\n\t\tthis.set( 'icon', undefined );\n\t\tthis.set( 'isEnabled', true );\n\t\tthis.set( 'isOn', false );\n\t\tthis.set( 'isVisible', true );\n\t\tthis.set( 'isToggleable', false );\n\t\tthis.set( 'keystroke', undefined );\n\t\tthis.set( 'label', undefined );\n\t\tthis.set( 'tabindex', -1 );\n\t\tthis.set( 'tooltip', false );\n\t\tthis.set( 'tooltipPosition', 's' );\n\t\tthis.set( 'type', 'button' );\n\t\tthis.set( 'withText', false );\n\t\tthis.set( 'withKeystroke', false );\n\n\t\t/**\n\t\t * Collection of the child views inside of the button {@link #element}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\t/**\n\t\t * Label of the button view. It is configurable using the {@link #label label attribute}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/view~View} #labelView\n\t\t */\n\t\tthis.labelView = this._createLabelView( ariaLabelUid );\n\n\t\t/**\n\t\t * The icon view of the button. Will be added to {@link #children} when the\n\t\t * {@link #icon icon attribute} is defined.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/icon/iconview~IconView} #iconView\n\t\t */\n\t\tthis.iconView = new IconView();\n\n\t\tthis.iconView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-button__icon'\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * A view displaying the keystroke of the button next to the {@link #labelView label}.\n\t\t * Added to {@link #children} when the {@link #withKeystroke `withKeystroke` attribute}\n\t\t * is defined.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/view/view~View} #keystrokeView\n\t\t */\n\t\tthis.keystrokeView = this._createKeystrokeView();\n\n\t\t/**\n\t\t * Tooltip of the button bound to the template.\n\t\t *\n\t\t * @see #tooltip\n\t\t * @see #_getTooltipString\n\t\t * @private\n\t\t * @observable\n\t\t * @member {String|undefined} #_tooltipString\n\t\t */\n\t\tthis.bind( '_tooltipString' ).to(\n\t\t\tthis, 'tooltip',\n\t\t\tthis, 'label',\n\t\t\tthis, 'keystroke',\n\t\t\tthis._getTooltipString.bind( this )\n\t\t);\n\n\t\tconst template: TemplateDefinition & { on: object } = {\n\t\t\ttag: 'button',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isEnabled', 'ck-disabled', value => !value ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-hidden', value => !value ),\n\t\t\t\t\tbind.to( 'isOn', value => value ? 'ck-on' : 'ck-off' ),\n\t\t\t\t\tbind.if( 'withText', 'ck-button_with-text' ),\n\t\t\t\t\tbind.if( 'withKeystroke', 'ck-button_with-keystroke' )\n\t\t\t\t],\n\t\t\t\ttype: bind.to( 'type', value => value ? value : 'button' ),\n\t\t\t\ttabindex: bind.to( 'tabindex' ),\n\t\t\t\t'aria-labelledby': `ck-editor__aria-label_${ ariaLabelUid }`,\n\t\t\t\t'aria-disabled': bind.if( 'isEnabled', true, value => !value ),\n\t\t\t\t'aria-pressed': bind.to( 'isOn', value => this.isToggleable ? String( !!value ) : false ),\n\t\t\t\t'data-cke-tooltip-text': bind.to( '_tooltipString' ),\n\t\t\t\t'data-cke-tooltip-position': bind.to( 'tooltipPosition' )\n\t\t\t},\n\n\t\t\tchildren: this.children,\n\n\t\t\ton: {\n\t\t\t\tclick: bind.to( evt => {\n\t\t\t\t\t// We can't make the button disabled using the disabled attribute, because it won't be focusable.\n\t\t\t\t\t// Though, shouldn't this condition be moved to the button controller?\n\t\t\t\t\tif ( this.isEnabled ) {\n\t\t\t\t\t\tthis.fire<ButtonExecuteEvent>( 'execute' );\n\t\t\t\t\t} else {\n\t\t\t\t\t\t// Prevent the default when button is disabled, to block e.g.\n\t\t\t\t\t\t// automatic form submitting. See ckeditor/ckeditor5-link#74.\n\t\t\t\t\t\tevt.preventDefault();\n\t\t\t\t\t}\n\t\t\t\t} )\n\t\t\t}\n\t\t};\n\n\t\t// On Safari we have to force the focus on a button on click as it's the only browser\n\t\t// that doesn't do that automatically. See #12115.\n\t\tif ( env.isSafari ) {\n\t\t\ttemplate.on.mousedown = bind.to( evt => {\n\t\t\t\tthis.focus();\n\t\t\t\tevt.preventDefault();\n\t\t\t} );\n\t\t}\n\n\t\tthis.setTemplate( template );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tif ( this.icon ) {\n\t\t\tthis.iconView.bind( 'content' ).to( this, 'icon' );\n\t\t\tthis.children.add( this.iconView );\n\t\t}\n\n\t\tthis.children.add( this.labelView );\n\n\t\tif ( this.withKeystroke && this.keystroke ) {\n\t\t\tthis.children.add( this.keystrokeView );\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the {@link #element} of the button.\n\t */\n\tpublic focus(): void {\n\t\tthis.element!.focus();\n\t}\n\n\t/**\n\t * Creates a label view instance and binds it with button attributes.\n\t *\n\t * @private\n\t * @param {String} ariaLabelUid The aria label UID.\n\t * @returns {module:ui/view~View}\n\t */\n\tprivate _createLabelView( ariaLabelUid: string ) {\n\t\tconst labelView = new View();\n\t\tconst bind = this.bindTemplate;\n\n\t\tlabelView.setTemplate( {\n\t\t\ttag: 'span',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button__label'\n\t\t\t\t],\n\t\t\t\tstyle: bind.to( 'labelStyle' ),\n\t\t\t\tid: `ck-editor__aria-label_${ ariaLabelUid }`\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: this.bindTemplate.to( 'label' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn labelView;\n\t}\n\n\t/**\n\t * Creates a view that displays a keystroke next to a {@link #labelView label }\n\t * and binds it with button attributes.\n\t *\n\t * @private\n\t * @returns {module:ui/view~View}\n\t */\n\tprivate _createKeystrokeView() {\n\t\tconst keystrokeView = new View();\n\n\t\tkeystrokeView.setTemplate( {\n\t\t\ttag: 'span',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button__keystroke'\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: this.bindTemplate.to( 'keystroke', text => getEnvKeystrokeText( text! ) )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn keystrokeView;\n\t}\n\n\t/**\n\t * Gets the text for the tooltip from the combination of\n\t * {@link #tooltip}, {@link #label} and {@link #keystroke} attributes.\n\t *\n\t * @private\n\t * @see #tooltip\n\t * @see #_tooltipString\n\t * @param {Boolean|String|Function} tooltip Button tooltip.\n\t * @param {String} label Button label.\n\t * @param {String} keystroke Button keystroke.\n\t * @returns {String}\n\t */\n\tprivate _getTooltipString(\n\t\ttooltip: Button[ 'tooltip' ],\n\t\tlabel: string | undefined,\n\t\tkeystroke: string | undefined\n\t): string {\n\t\tif ( tooltip ) {\n\t\t\tif ( typeof tooltip == 'string' ) {\n\t\t\t\treturn tooltip;\n\t\t\t} else {\n\t\t\t\tif ( keystroke ) {\n\t\t\t\t\tkeystroke = getEnvKeystrokeText( keystroke );\n\t\t\t\t}\n\n\t\t\t\tif ( tooltip instanceof Function ) {\n\t\t\t\t\treturn tooltip( label!, keystroke );\n\t\t\t\t} else {\n\t\t\t\t\treturn `${ label }${ keystroke ? ` (${ keystroke })` : '' }`;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn '';\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./switchbutton.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/button/switchbuttonview\n */\n\nimport View from '../view';\nimport ButtonView from './buttonview';\n\nimport '../../theme/components/button/switchbutton.css';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The switch button view class.\n *\n *\t\tconst view = new SwitchButtonView();\n *\n *\t\tview.set( {\n *\t\t\twithText: true,\n *\t\t\tlabel: 'Switch me!'\n *\t\t} );\n *\n *\t\tview.render();\n *\n *\t\tdocument.body.append( view.element );\n *\n * @extends module:ui/button/buttonview~ButtonView\n */\nexport default class SwitchButtonView extends ButtonView {\n\tpublic readonly toggleSwitchView: View;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.isToggleable = true;\n\n\t\t/**\n\t\t * The toggle switch of the button.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/view~View} #toggleSwitchView\n\t\t */\n\t\tthis.toggleSwitchView = this._createToggleView();\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-switchbutton'\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.children.add( this.toggleSwitchView );\n\t}\n\n\t/**\n\t * Creates a toggle child view.\n\t *\n\t * @private\n\t * @returns {module:ui/view~View}\n\t */\n\tprivate _createToggleView() {\n\t\tconst toggleSwitchView = new View();\n\n\t\ttoggleSwitchView.setTemplate( {\n\t\t\ttag: 'span',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button__toggle'\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'span',\n\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-button__toggle__inner'\n\t\t\t\t\t\t]\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn toggleSwitchView;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * @module ui/colorgrid/utils\n */\n\nexport type ColorOption = string | {\n\tcolor: string;\n\tlabel?: string;\n\thasBorder?: boolean;\n};\n\nexport interface NormalizedColorOption {\n\tmodel: string;\n\tlabel: string;\n\thasBorder: boolean;\n\tview: {\n\t\tname: string;\n\t\tstyles: {\n\t\t\tcolor: string;\n\t\t};\n\t};\n}\n\n/**\n * Returns color configuration options as defined in `editor.config.(fontColor|fontBackgroundColor).colors` or\n * `editor.config.table.(tableProperties|tableCellProperties).(background|border).colors\n * but processed to account for editor localization in the correct language.\n *\n * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n * when the user configuration is defined because the editor does not exist yet.\n *\n * @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor#locale} instance.\n * @param {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>} options\n * @returns {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>}.\n */\nexport function getLocalizedColorOptions(\n\tlocale: Locale,\n\toptions: Array<NormalizedColorOption>\n): Array<NormalizedColorOption> {\n\tconst t = locale.t;\n\tconst localizedColorNames: Record<string, string | undefined> = {\n\t\tBlack: t( 'Black' ),\n\t\t'Dim grey': t( 'Dim grey' ),\n\t\tGrey: t( 'Grey' ),\n\t\t'Light grey': t( 'Light grey' ),\n\t\tWhite: t( 'White' ),\n\t\tRed: t( 'Red' ),\n\t\tOrange: t( 'Orange' ),\n\t\tYellow: t( 'Yellow' ),\n\t\t'Light green': t( 'Light green' ),\n\t\tGreen: t( 'Green' ),\n\t\tAquamarine: t( 'Aquamarine' ),\n\t\tTurquoise: t( 'Turquoise' ),\n\t\t'Light blue': t( 'Light blue' ),\n\t\tBlue: t( 'Blue' ),\n\t\tPurple: t( 'Purple' )\n\t};\n\n\treturn options.map( colorOption => {\n\t\tconst label = localizedColorNames[ colorOption.label ];\n\n\t\tif ( label && label != colorOption.label ) {\n\t\t\tcolorOption.label = label;\n\t\t}\n\n\t\treturn colorOption;\n\t} );\n}\n\n/**\n * Creates a unified color definition object from color configuration options.\n * The object contains the information necessary to both render the UI and initialize the conversion.\n *\n * @param {module:ui/colorgrid/colorgrid~ColorDefinition} options\n * @returns {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>}\n */\nexport function normalizeColorOptions( options: Array<ColorOption> ): Array<NormalizedColorOption> {\n\treturn options\n\t\t.map( normalizeSingleColorDefinition )\n\t\t.filter( option => !!option );\n}\n\n// Creates a normalized color definition from the user-defined configuration.\n// The \"normalization\" means it will create full\n// {@link module:ui/colorgrid/colorgrid~ColorDefinition `ColorDefinition-like`}\n// object for string values, and add a `view` property, for each definition.\n//\n// @param {String|module:ui/colorgrid/colorgrid~ColorDefinition}\n// @returns {module:ui/colorgrid/colorgrid~ColorDefinition}\nexport function normalizeSingleColorDefinition( color: ColorOption ): NormalizedColorOption {\n\tif ( typeof color === 'string' ) {\n\t\treturn {\n\t\t\tmodel: color,\n\t\t\tlabel: color,\n\t\t\thasBorder: false,\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\tcolor\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t} else {\n\t\treturn {\n\t\t\tmodel: color.color,\n\t\t\tlabel: color.label || color.color,\n\t\t\thasBorder: color.hasBorder === undefined ? false : color.hasBorder,\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\tcolor: `${ color.color }`\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/colorgrid/colortile\n */\n\nimport ButtonView from '../button/buttonview';\nimport checkIcon from '../../theme/icons/color-tile-check.svg';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * This class represents a single color tile in the {@link module:ui/colorgrid/colorgrid~ColorGridView}.\n *\n * @extends module:ui/button/buttonview~ButtonView\n */\nexport default class ColorTileView extends ButtonView {\n\tdeclare public color: string | undefined;\n\tdeclare public hasBorder: boolean;\n\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * String representing a color shown as tile's background.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.set( 'color', undefined );\n\n\t\t/**\n\t\t * A flag that toggles a special CSS class responsible for displaying\n\t\t * a border around the button.\n\t\t *\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.set( 'hasBorder', false );\n\n\t\tthis.icon = checkIcon;\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tstyle: {\n\t\t\t\t\tbackgroundColor: bind.to( 'color' )\n\t\t\t\t},\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-color-grid__tile',\n\t\t\t\t\tbind.if( 'hasBorder', 'ck-color-table__color-tile_bordered' )\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.iconView.fillColor = 'hsl(0, 0%, 100%)';\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path class=\\\"ck-icon__fill\\\" d=\\\"M16.935 5.328a2 2 0 0 1 0 2.829l-7.778 7.778a2 2 0 0 1-2.829 0L3.5 13.107a1.999 1.999 0 1 1 2.828-2.829l.707.707a1 1 0 0 0 1.414 0l5.658-5.657a2 2 0 0 1 2.828 0z\\\"/><path d=\\\"M14.814 6.035 8.448 12.4a1 1 0 0 1-1.414 0l-1.413-1.415A1 1 0 1 0 4.207 12.4l2.829 2.829a1 1 0 0 0 1.414 0l7.778-7.778a1 1 0 1 0-1.414-1.415z\\\"/></svg>\";","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./colorgrid.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/colorgrid/colorgrid\n */\n\nimport View from '../view';\nimport ColorTileView from './colortileview';\nimport KeystrokeHandler from '@ckeditor/ckeditor5-utils/src/keystrokehandler';\nimport addKeyboardHandlingForGrid from '../bindings/addkeyboardhandlingforgrid';\n\nimport {\n\tFocusTracker,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/colorgrid/colorgrid.css';\n\nimport type { ButtonExecuteEvent } from '../button/button';\nimport type DropdownPanelFocusable from '../dropdown/dropdownpanelfocusable';\nimport type ViewCollection from '../viewcollection';\n\n/**\n * A grid of {@link module:ui/colorgrid/colortile~ColorTileView color tiles}.\n *\n * @extends module:ui/view~View\n */\nexport default class ColorGridView extends View implements DropdownPanelFocusable {\n\tpublic readonly columns: number;\n\tpublic readonly items: ViewCollection;\n\tpublic readonly focusTracker: FocusTracker;\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\tdeclare public selectedColor: string | undefined;\n\n\t/**\n\t * Creates an instance of a color grid containing {@link module:ui/colorgrid/colortile~ColorTileView tiles}.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The localization services instance.\n\t * @param {Object} options Component configuration\n\t * @param {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>} [options.colorDefinitions] Array with definitions\n\t * required to create the {@link module:ui/colorgrid/colortile~ColorTileView tiles}.\n\t * @param {Number} [options.columns=5] A number of columns to display the tiles.\n\t */\n\tconstructor(\n\t\tlocale?: Locale,\n\t\toptions?: {\n\t\t\tcolorDefinitions?: Array<ColorDefinition>;\n\t\t\tcolumns?: number;\n\t\t}\n\t) {\n\t\tsuper( locale );\n\n\t\tconst colorDefinitions = options && options.colorDefinitions || [];\n\n\t\t/**\n\t\t * A number of columns for the tiles grid.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.columns = options && options.columns ? options.columns : 5;\n\n\t\tconst viewStyleAttribute = {\n\t\t\tgridTemplateColumns: `repeat( ${ this.columns }, 1fr)`\n\t\t};\n\n\t\t/**\n\t\t * The color of the currently selected color tile in {@link #items}.\n\t\t *\n\t\t * @observable\n\t\t * @type {String}\n\t\t */\n\t\tthis.set( 'selectedColor', undefined );\n\n\t\t/**\n\t\t * Collection of the child tile views.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.items = this.createCollection();\n\n\t\t/**\n\t\t * Tracks information about DOM focus in the grid.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\tthis.items.on<CollectionAddEvent<ColorTileView>>( 'add', ( evt, colorTile ) => {\n\t\t\tcolorTile.isOn = colorTile.color === this.selectedColor;\n\t\t} );\n\n\t\tcolorDefinitions.forEach( color => {\n\t\t\tconst colorTile = new ColorTileView();\n\n\t\t\tcolorTile.set( {\n\t\t\t\tcolor: color.color,\n\t\t\t\tlabel: color.label,\n\t\t\t\ttooltip: true,\n\t\t\t\thasBorder: color.options.hasBorder\n\t\t\t} );\n\n\t\t\tcolorTile.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\t\tthis.fire<ColorGridViewExecuteEvent>( 'execute', {\n\t\t\t\t\tvalue: color.color,\n\t\t\t\t\thasBorder: color.options.hasBorder,\n\t\t\t\t\tlabel: color.label\n\t\t\t\t} );\n\t\t\t} );\n\n\t\t\tthis.items.add( colorTile );\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tchildren: this.items,\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-color-grid'\n\t\t\t\t],\n\t\t\t\tstyle: viewStyleAttribute\n\t\t\t}\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent<string | undefined>>( 'change:selectedColor', ( evt, name, selectedColor ) => {\n\t\t\tfor ( const item of this.items ) {\n\t\t\t\t( item as ColorTileView ).isOn = ( item as ColorTileView ).color === selectedColor;\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the first focusable in {@link #items}.\n\t */\n\tpublic focus(): void {\n\t\tif ( this.items.length ) {\n\t\t\t( this.items.first as ColorTileView ).focus();\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the last focusable in {@link #items}.\n\t */\n\tpublic focusLast(): void {\n\t\tif ( this.items.length ) {\n\t\t\t( this.items.last as ColorTileView ).focus();\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Items added before rendering should be known to the #focusTracker.\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t}\n\n\t\tthis.items.on<CollectionAddEvent<ColorTileView>>( 'add', ( evt, item ) => {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t} );\n\n\t\tthis.items.on<CollectionRemoveEvent<ColorTileView>>( 'remove', ( evt, item ) => {\n\t\t\tthis.focusTracker.remove( item.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\taddKeyboardHandlingForGrid( {\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tgridItems: this.items,\n\t\t\tnumberOfColumns: this.columns,\n\t\t\tuiLanguageDirection: this.locale && this.locale.uiLanguageDirection\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Fired when the `ColorTileView` for the picked item is executed.\n\t *\n\t * @event execute\n\t * @param {Object} data Additional information about the event.\n\t * @param {String} data.value The value of the selected color\n\t * ({@link module:ui/colorgrid/colorgrid~ColorDefinition#color `color.color`}).\n\t * @param {Boolean} data.hasBorder The `hasBorder` property of the selected color\n\t * ({@link module:ui/colorgrid/colorgrid~ColorDefinition#options `color.options.hasBorder`}).\n\t * @param {String} data.Label The label of the selected color\n\t * ({@link module:ui/colorgrid/colorgrid~ColorDefinition#label `color.label`})\n\t */\n}\n\n/**\n * A color definition used to create a {@link module:ui/colorgrid/colortile~ColorTileView}.\n *\n *\t\t{\n *\t\t\tcolor: 'hsl(0, 0%, 75%)',\n *\t\t\tlabel: 'Light Grey',\n *\t\t\toptions: {\n *\t\t\t\thasBorder: true\n *\t\t\t}\n *\t\t}\n *\n * @typedef {Object} module:ui/colorgrid/colorgrid~ColorDefinition\n * @type Object\n *\n * @property {String} color String representing a color.\n * It is used as value of background-color style in {@link module:ui/colorgrid/colortile~ColorTileView}.\n * @property {String} label String used as label for {@link module:ui/colorgrid/colortile~ColorTileView}.\n * @property {Object} options Additional options passed to create a {@link module:ui/colorgrid/colortile~ColorTileView}.\n * @property {Boolean} options.hasBorder A flag that indicates if special a CSS class should be added\n * to {@link module:ui/colorgrid/colortile~ColorTileView}, which renders a border around it.\n */\nexport interface ColorDefinition {\n\tcolor: string;\n\tlabel: string;\n\toptions: {\n\t\thasBorder: boolean;\n\t};\n}\n\nexport type ColorGridViewExecuteEvent = {\n\tname: 'execute';\n\targs: [ {\n\t\tvalue: string;\n\t\thasBorder: boolean;\n\t\tlabel: string;\n\t} ];\n};\n","export default \"<svg viewBox=\\\"0 0 10 10\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M.941 4.523a.75.75 0 1 1 1.06-1.06l3.006 3.005 3.005-3.005a.75.75 0 1 1 1.06 1.06l-3.549 3.55a.75.75 0 0 1-1.168-.136L.941 4.523z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/button/dropdownbuttonview\n */\n\nimport ButtonView from '../../button/buttonview';\n\nimport dropdownArrowIcon from '../../../theme/icons/dropdown-arrow.svg';\nimport IconView from '../../icon/iconview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The default dropdown button view class.\n *\n *\t\tconst view = new DropdownButtonView();\n *\n *\t\tview.set( {\n *\t\t\tlabel: 'A button',\n *\t\t\tkeystroke: 'Ctrl+B',\n *\t\t\ttooltip: true\n *\t\t} );\n *\n *\t\tview.render();\n *\n *\t\tdocument.body.append( view.element );\n *\n * Also see the {@link module:ui/dropdown/utils~createDropdown `createDropdown()` util}.\n *\n * @implements module:ui/dropdown/button/dropdownbutton~DropdownButton\n * @extends module:ui/button/buttonview~ButtonView\n */\nexport default class DropdownButtonView extends ButtonView {\n\tpublic readonly arrowView: IconView;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * An icon that displays arrow to indicate a dropdown button.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/icon/iconview~IconView}\n\t\t */\n\t\tthis.arrowView = this._createArrowView();\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\t'aria-haspopup': true,\n\t\t\t\t'aria-expanded': this.bindTemplate.to( 'isOn', value => String( value ) )\n\t\t\t}\n\t\t} );\n\n\t\t// The DropdownButton interface expects the open event upon which will open the dropdown.\n\t\tthis.delegate( 'execute' ).to( this, 'open' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.children.add( this.arrowView );\n\t}\n\n\t/**\n\t * Creates a {@link module:ui/icon/iconview~IconView} instance as {@link #arrowView}.\n\t *\n\t * @private\n\t * @returns {module:ui/icon/iconview~IconView}\n\t */\n\tprivate _createArrowView() {\n\t\tconst arrowView = new IconView();\n\n\t\tarrowView.content = dropdownArrowIcon;\n\n\t\tarrowView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-dropdown__arrow'\n\t\t\t}\n\t\t} );\n\n\t\treturn arrowView;\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./splitbutton.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/button/splitbuttonview\n */\n\nimport View from '../../view';\nimport ButtonView from '../../button/buttonview';\n\nimport {\n\tKeystrokeHandler,\n\tFocusTracker,\n\ttype Locale\n} from '@ckeditor/ckeditor5-utils';\n\nimport dropdownArrowIcon from '../../../theme/icons/dropdown-arrow.svg';\n\nimport '../../../theme/components/dropdown/splitbutton.css';\n\nimport type ViewCollection from '../../viewcollection';\nimport type Button from '../../button/button';\nimport type DropdownButton from './dropdownbutton';\n\n/**\n * The split button view class.\n *\n *\t\tconst view = new SplitButtonView();\n *\n *\t\tview.set( {\n *\t\t\tlabel: 'A button',\n *\t\t\tkeystroke: 'Ctrl+B',\n *\t\t\ttooltip: true\n *\t\t} );\n *\n *\t\tview.render();\n *\n *\t\tdocument.body.append( view.element );\n *\n * Also see the {@link module:ui/dropdown/utils~createDropdown `createDropdown()` util}.\n *\n * @implements module:ui/dropdown/button/dropdownbutton~DropdownButton\n * @extends module:ui/view~View\n */\nexport default class SplitButtonView extends View implements DropdownButton {\n\tpublic readonly children: ViewCollection;\n\tpublic readonly actionView: ButtonView;\n\tpublic readonly arrowView: ButtonView;\n\tpublic readonly keystrokes: KeystrokeHandler;\n\tpublic readonly focusTracker: FocusTracker;\n\n\tdeclare public label: string | undefined;\n\tdeclare public keystroke: string | undefined;\n\tdeclare public tooltip: Button[ 'tooltip' ];\n\tdeclare public tooltipPosition: Button[ 'tooltipPosition' ];\n\tdeclare public type: Button[ 'type' ];\n\tdeclare public isOn: boolean;\n\tdeclare public isEnabled: boolean;\n\tdeclare public isVisible: boolean;\n\tdeclare public isToggleable: boolean;\n\tdeclare public withText: boolean;\n\tdeclare public withKeystroke: boolean;\n\tdeclare public icon: string | undefined;\n\tdeclare public tabindex: number;\n\tdeclare public class: string | undefined;\n\tdeclare public labelStyle: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t// Implement the Button interface.\n\t\tthis.set( 'class', undefined );\n\t\tthis.set( 'labelStyle', undefined );\n\t\tthis.set( 'icon', undefined );\n\t\tthis.set( 'isEnabled', true );\n\t\tthis.set( 'isOn', false );\n\t\tthis.set( 'isToggleable', false );\n\t\tthis.set( 'isVisible', true );\n\t\tthis.set( 'keystroke', undefined );\n\t\tthis.set( 'withKeystroke', false );\n\t\tthis.set( 'label', undefined );\n\t\tthis.set( 'tabindex', -1 );\n\t\tthis.set( 'tooltip', false );\n\t\tthis.set( 'tooltipPosition', 's' );\n\t\tthis.set( 'type', 'button' );\n\t\tthis.set( 'withText', false );\n\n\t\t/**\n\t\t * Collection of the child views inside of the split button {@link #element}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\t/**\n\t\t * A main button of split button.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.actionView = this._createActionView();\n\n\t\t/**\n\t\t * A secondary button of split button that opens dropdown.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.arrowView = this._createArrowView();\n\n\t\t/**\n\t\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}. It manages\n\t\t * keystrokes of the split button:\n\t\t *\n\t\t * * <kbd>▶</kbd> moves focus to arrow view when action view is focused,\n\t\t * * <kbd>◀</kbd> moves focus to action view when arrow view is focused.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * Tracks information about DOM focus in the dropdown.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-splitbutton',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-hidden', value => !value ),\n\t\t\t\t\tthis.arrowView.bindTemplate.if( 'isOn', 'ck-splitbutton_open' )\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.children.add( this.actionView );\n\t\tthis.children.add( this.arrowView );\n\n\t\tthis.focusTracker.add( this.actionView.element! );\n\t\tthis.focusTracker.add( this.arrowView.element! );\n\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\t// Overrides toolbar focus cycling behavior.\n\t\tthis.keystrokes.set( 'arrowright', ( evt, cancel ) => {\n\t\t\tif ( this.focusTracker.focusedElement === this.actionView.element ) {\n\t\t\t\tthis.arrowView.focus();\n\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Overrides toolbar focus cycling behavior.\n\t\tthis.keystrokes.set( 'arrowleft', ( evt, cancel ) => {\n\t\t\tif ( this.focusTracker.focusedElement === this.arrowView.element ) {\n\t\t\t\tthis.actionView.focus();\n\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the {@link #actionView#element} of the action part of split button.\n\t */\n\tpublic focus(): void {\n\t\tthis.actionView.focus();\n\t}\n\n\t/**\n\t * Creates a {@link module:ui/button/buttonview~ButtonView} instance as {@link #actionView} and binds it with main split button\n\t * attributes.\n\t *\n\t * @private\n\t * @returns {module:ui/button/buttonview~ButtonView}\n\t */\n\tprivate _createActionView() {\n\t\tconst actionView = new ButtonView();\n\n\t\tactionView.bind(\n\t\t\t'icon',\n\t\t\t'isEnabled',\n\t\t\t'isOn',\n\t\t\t'isToggleable',\n\t\t\t'keystroke',\n\t\t\t'label',\n\t\t\t'tabindex',\n\t\t\t'tooltip',\n\t\t\t'tooltipPosition',\n\t\t\t'type',\n\t\t\t'withText'\n\t\t).to( this );\n\n\t\tactionView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-splitbutton__action'\n\t\t\t}\n\t\t} );\n\n\t\tactionView.delegate( 'execute' ).to( this );\n\n\t\treturn actionView;\n\t}\n\n\t/**\n\t * Creates a {@link module:ui/button/buttonview~ButtonView} instance as {@link #arrowView} and binds it with main split button\n\t * attributes.\n\t *\n\t * @private\n\t * @returns {module:ui/button/buttonview~ButtonView}\n\t */\n\tprivate _createArrowView() {\n\t\tconst arrowView = new ButtonView();\n\t\tconst bind = arrowView.bindTemplate;\n\n\t\tarrowView.icon = dropdownArrowIcon;\n\n\t\tarrowView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-splitbutton__arrow'\n\t\t\t\t],\n\t\t\t\t'data-cke-tooltip-disabled': bind.to( 'isOn' ),\n\t\t\t\t'aria-haspopup': true,\n\t\t\t\t'aria-expanded': bind.to( 'isOn', value => String( value ) )\n\t\t\t}\n\t\t} );\n\n\t\tarrowView.bind( 'isEnabled' ).to( this );\n\t\tarrowView.bind( 'label' ).to( this );\n\t\tarrowView.bind( 'tooltip' ).to( this );\n\n\t\tarrowView.delegate( 'execute' ).to( this, 'open' );\n\n\t\treturn arrowView;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/dropdownpanelview\n */\n\nimport View from '../view';\nimport { logWarning, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport type ViewCollection from '../viewcollection';\nimport type DropdownPanelFocusable from './dropdownpanelfocusable';\n\n/**\n * The dropdown panel view class.\n *\n * See {@link module:ui/dropdown/dropdownview~DropdownView} to learn about the common usage.\n *\n * @extends module:ui/view~View\n */\nexport default class DropdownPanelView extends View implements DropdownPanelFocusable {\n\tpublic readonly children: ViewCollection;\n\n\tdeclare public isVisible: boolean;\n\tdeclare public position: PanelPosition;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * Controls whether the panel is visible.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isVisible\n\t\t */\n\t\tthis.set( 'isVisible', false );\n\n\t\t/**\n\t\t * The position of the panel, relative to the parent.\n\t\t *\n\t\t * This property is reflected in the CSS class set to {@link #element} that controls\n\t\t * the position of the panel.\n\t\t *\n\t\t * @observable\n\t\t * @default 'se'\n\t\t * @member {'s'|'se'|'sw'|'sme'|'smw'|'n'|'ne'|'nw'|'nme'|'nmw'} #position\n\t\t */\n\t\tthis.set( 'position', 'se' );\n\n\t\t/**\n\t\t * Collection of the child views in this panel.\n\t\t *\n\t\t * A common child type is the {@link module:ui/list/listview~ListView} and {@link module:ui/toolbar/toolbarview~ToolbarView}.\n\t\t * See {@link module:ui/dropdown/utils~addListToDropdown} and\n\t\t * {@link module:ui/dropdown/utils~addToolbarToDropdown} to learn more about child views of dropdowns.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-reset',\n\t\t\t\t\t'ck-dropdown__panel',\n\t\t\t\t\tbind.to( 'position', value => `ck-dropdown__panel_${ value }` ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-dropdown__panel-visible' )\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: this.children,\n\n\t\t\ton: {\n\t\t\t\t// Drag and drop in the panel should not break the selection in the editor.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/228\n\t\t\t\tselectstart: bind.to( evt => evt.preventDefault() )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the first view in the {@link #children} collection.\n\t *\n\t * See also {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable}.\n\t */\n\tpublic focus(): void {\n\t\tif ( this.children.length ) {\n\t\t\tconst firstChild: any = this.children.first;\n\n\t\t\tif ( typeof firstChild.focus === 'function' ) {\n\t\t\t\tfirstChild.focus();\n\t\t\t} else {\n\t\t\t\t/**\n\t\t\t\t * The child view of a dropdown could not be focused because it is missing the `focus()` method.\n\t\t\t\t *\n\t\t\t\t * This warning appears when a dropdown {@link module:ui/dropdown/dropdownview~DropdownView#isOpen gets open} and it\n\t\t\t\t * attempts to focus the {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView#children first child} of its panel\n\t\t\t\t * but the child does not implement the\n\t\t\t\t * {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable focusable interface}.\n\t\t\t\t *\n\t\t\t\t * Focusing the content of a dropdown on open greatly improves the accessibility. Please make sure the view instance\n\t\t\t\t * provides the `focus()` method for the best user experience.\n\t\t\t\t *\n\t\t\t\t * @error ui-dropdown-panel-focus-child-missing-focus\n\t\t\t\t * @param {module:ui/view~View} childView\n\t\t\t\t * @param {module:ui/dropdown/dropdownpanelview~DropdownPanelView} dropdownPanel\n\t\t\t\t */\n\t\t\t\tlogWarning( 'ui-dropdown-panel-focus-child-missing-focus', { childView: this.children.first, dropdownPanel: this } );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the view element or last item in view collection on opening dropdown's panel.\n\t *\n\t * See also {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable}.\n\t */\n\tpublic focusLast(): void {\n\t\tif ( this.children.length ) {\n\t\t\tconst lastChild: any = this.children.last;\n\n\t\t\tif ( typeof lastChild.focusLast === 'function' ) {\n\t\t\t\tlastChild.focusLast();\n\t\t\t} else {\n\t\t\t\tlastChild.focus();\n\t\t\t}\n\t\t}\n\t}\n}\n\nexport type PanelPosition = 's' | 'se' | 'sw' | 'sme' | 'smw' | 'n' | 'ne' | 'nw' | 'nme' | 'nmw';\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./dropdown.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/dropdownview\n */\n\nimport View from '../view';\nimport {\n\tKeystrokeHandler,\n\tFocusTracker,\n\tgetOptimalPosition,\n\ttype Locale,\n\ttype ObservableChangeEvent,\n\ttype PositioningFunction\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/dropdown/dropdown.css';\n\nimport type { default as DropdownButton, DropdownButtonOpenEvent } from './button/dropdownbutton';\nimport type { default as DropdownPanelView, PanelPosition } from './dropdownpanelview';\nimport type { FocusableView } from '../focuscycler';\nimport type ListView from '../list/listview';\nimport type ToolbarView from '../toolbar/toolbarview';\n\n/**\n * The dropdown view class. It manages the dropdown button and dropdown panel.\n *\n * In most cases, the easiest way to create a dropdown is by using the {@link module:ui/dropdown/utils~createDropdown}\n * util:\n *\n *\t\tconst dropdown = createDropdown( locale );\n *\n *\t\t// Configure dropdown's button properties:\n *\t\tdropdown.buttonView.set( {\n *\t\t\tlabel: 'A dropdown',\n *\t\t\twithText: true\n *\t\t} );\n *\n *\t\tdropdown.render();\n *\n *\t\tdropdown.panelView.element.textContent = 'Content of the panel';\n *\n *\t\t// Will render a dropdown with a panel containing a \"Content of the panel\" text.\n *\t\tdocument.body.appendChild( dropdown.element );\n *\n * If you want to add a richer content to the dropdown panel, you can use the {@link module:ui/dropdown/utils~addListToDropdown}\n * and {@link module:ui/dropdown/utils~addToolbarToDropdown} helpers. See more examples in\n * {@link module:ui/dropdown/utils~createDropdown} documentation.\n *\n * If you want to create a completely custom dropdown, then you can compose it manually:\n *\n *\t\tconst button = new DropdownButtonView( locale );\n *\t\tconst panel = new DropdownPanelView( locale );\n *\t\tconst dropdown = new DropdownView( locale, button, panel );\n *\n *\t\tbutton.set( {\n *\t\t\tlabel: 'A dropdown',\n *\t\t\twithText: true\n *\t\t} );\n *\n *\t\tdropdown.render();\n *\n *\t\tpanel.element.textContent = 'Content of the panel';\n *\n *\t\t// Will render a dropdown with a panel containing a \"Content of the panel\" text.\n *\t\tdocument.body.appendChild( dropdown.element );\n *\n * However, dropdown created this way will contain little behavior. You will need to implement handlers for actions\n * such as {@link module:ui/bindings/clickoutsidehandler~clickOutsideHandler clicking outside an open dropdown}\n * (which should close it) and support for arrow keys inside the panel. Therefore, unless you really know what\n * you do and you really need to do it, it is recommended to use the {@link module:ui/dropdown/utils~createDropdown} helper.\n *\n * @extends module:ui/view~View\n */\nexport default class DropdownView extends View {\n\tpublic readonly buttonView: DropdownButton & FocusableView;\n\tpublic readonly panelView: DropdownPanelView;\n\tpublic readonly focusTracker: FocusTracker;\n\tpublic readonly keystrokes: KeystrokeHandler;\n\tpublic listView?: ListView;\n\tpublic toolbarView?: ToolbarView;\n\n\tdeclare public readonly locale: Locale;\n\tdeclare public isOpen: boolean;\n\tdeclare public isEnabled: boolean;\n\tdeclare public class: string | undefined;\n\tdeclare public id: string | undefined;\n\tdeclare public panelPosition: PanelPosition | 'auto';\n\tdeclare public ariaDescribedById: string | undefined;\n\n\t/**\n\t * Creates an instance of the dropdown.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The localization services instance.\n\t * @param {module:ui/dropdown/button/dropdownbutton~DropdownButton} buttonView\n\t * @param {module:ui/dropdown/dropdownpanelview~DropdownPanelView} panelView\n\t */\n\tconstructor(\n\t\tlocale: Locale | undefined,\n\t\tbuttonView: DropdownButton & FocusableView,\n\t\tpanelView: DropdownPanelView\n\t) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * Button of the dropdown view. Clicking the button opens the {@link #panelView}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView} #buttonView\n\t\t */\n\t\tthis.buttonView = buttonView;\n\n\t\t/**\n\t\t * Panel of the dropdown. It opens when the {@link #buttonView} is\n\t\t * {@link module:ui/button/buttonview~ButtonView#event:execute executed} (i.e. clicked).\n\t\t *\n\t\t * Child views can be added to the panel's `children` collection:\n\t\t *\n\t\t *\t\tdropdown.panelView.children.add( childView );\n\t\t *\n\t\t * See {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView#children} and\n\t\t * {@link module:ui/viewcollection~ViewCollection#add}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/dropdown/dropdownpanelview~DropdownPanelView} #panelView\n\t\t */\n\t\tthis.panelView = panelView;\n\n\t\t/**\n\t\t * Controls whether the dropdown view is open, i.e. shows or hides the {@link #panelView panel}.\n\t\t *\n\t\t * **Note**: When the dropdown gets open, it will attempt to call `focus()` on the first child of its {@link #panelView}.\n\t\t * See {@link module:ui/dropdown/utils~addToolbarToDropdown}, {@link module:ui/dropdown/utils~addListToDropdown}, and\n\t\t * {@link module:ui/dropdown/utils~focusChildOnDropdownOpen} to learn more about focus management in dropdowns.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isOpen\n\t\t */\n\t\tthis.set( 'isOpen', false );\n\n\t\t/**\n\t\t * Controls whether the dropdown is enabled, i.e. it can be clicked and execute an action.\n\t\t *\n\t\t * See {@link module:ui/button/buttonview~ButtonView#isEnabled}.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isEnabled\n\t\t */\n\t\tthis.set( 'isEnabled', true );\n\n\t\t/**\n\t\t * (Optional) The additional CSS class set on the dropdown {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #class\n\t\t */\n\t\tthis.set( 'class', undefined );\n\n\t\t/**\n\t\t * (Optional) The `id` attribute of the dropdown (i.e. to pair with a `<label>` element).\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #id\n\t\t */\n\t\tthis.set( 'id', undefined );\n\n\t\t/**\n\t\t * The position of the panel, relative to the dropdown.\n\t\t *\n\t\t * **Note**: When `'auto'`, the panel will use one of the remaining positions to stay\n\t\t * in the viewport, visible to the user. The positions correspond directly to\n\t\t * {@link module:ui/dropdown/dropdownview~DropdownView.defaultPanelPositions default panel positions}.\n\t\t *\n\t\t * **Note**: This value has an impact on the\n\t\t * {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView#position} property\n\t\t * each time the panel becomes {@link #isOpen open}.\n\t\t *\n\t\t * @observable\n\t\t * @default 'auto'\n\t\t * @member {'auto'|'s'|'se'|'sw'|'sme'|'smw'|'n'|'ne'|'nw'|'nme'|'nmw'} #panelPosition\n\t\t */\n\t\tthis.set( 'panelPosition', 'auto' );\n\n\t\t/**\n\t\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}. It manages\n\t\t * keystrokes of the dropdown:\n\t\t *\n\t\t * * <kbd>▼</kbd> opens the dropdown,\n\t\t * * <kbd>◀</kbd> and <kbd>Esc</kbd> closes the dropdown.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the dropdown.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-dropdown',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isEnabled', 'ck-disabled', value => !value )\n\t\t\t\t],\n\t\t\t\tid: bind.to( 'id' ),\n\t\t\t\t'aria-describedby': bind.to( 'ariaDescribedById' )\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\tbuttonView,\n\t\t\t\tpanelView\n\t\t\t]\n\t\t} );\n\n\t\tbuttonView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-dropdown__button'\n\t\t\t\t],\n\t\t\t\t'data-cke-tooltip-disabled': bind.to( 'isOpen' )\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * A child {@link module:ui/list/listview~ListView list view} of the dropdown located\n\t\t * in its {@link module:ui/dropdown/dropdownview~DropdownView#panelView panel}.\n\t\t *\n\t\t * **Note**: Only supported when dropdown has list view added using {@link module:ui/dropdown/utils~addListToDropdown}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/list/listview~ListView} #listView\n\t\t */\n\n\t\t/**\n\t\t * A child toolbar of the dropdown located in the\n\t\t * {@link module:ui/dropdown/dropdownview~DropdownView#panelView panel}.\n\t\t *\n\t\t * **Note**: Only supported when dropdown has list view added using {@link module:ui/dropdown/utils~addToolbarToDropdown}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ToolbarView} #toolbarView\n\t\t */\n\n\t\t/**\n\t\t * Fired when the toolbar button or list item is executed.\n\t\t *\n\t\t * For {@link #listView} It fires when a child of some {@link module:ui/list/listitemview~ListItemView}\n\t\t * fired `execute`.\n\t\t *\n\t\t * For {@link #toolbarView} It fires when one of the buttons has been\n\t\t * {@link module:ui/button/buttonview~ButtonView#event:execute executed}.\n\t\t *\n\t\t * **Note**: Only supported when dropdown has list view added using {@link module:ui/dropdown/utils~addListToDropdown}\n\t\t * or {@link module:ui/dropdown/utils~addToolbarToDropdown}.\n\t\t *\n\t\t * @event execute\n\t\t */\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.focusTracker.add( this.buttonView.element! );\n\t\tthis.focusTracker.add( this.panelView.element! );\n\n\t\t// Toggle the dropdown when its button has been clicked.\n\t\tthis.listenTo<DropdownButtonOpenEvent>( this.buttonView, 'open', () => {\n\t\t\tthis.isOpen = !this.isOpen;\n\t\t} );\n\n\t\t// Toggle the visibility of the panel when the dropdown becomes open.\n\t\tthis.panelView.bind( 'isVisible' ).to( this, 'isOpen' );\n\n\t\t// Let the dropdown control the position of the panel. The position must\n\t\t// be updated every time the dropdown is open.\n\t\tthis.on<ObservableChangeEvent<boolean>>( 'change:isOpen', ( evt, name, isOpen ) => {\n\t\t\tif ( !isOpen ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If \"auto\", find the best position of the panel to fit into the viewport.\n\t\t\t// Otherwise, simply assign the static position.\n\t\t\tif ( this.panelPosition === 'auto' ) {\n\t\t\t\tthis.panelView.position = DropdownView._getOptimalPosition( {\n\t\t\t\t\telement: this.panelView.element!,\n\t\t\t\t\ttarget: this.buttonView.element!,\n\t\t\t\t\tfitInViewport: true,\n\t\t\t\t\tpositions: this._panelPositions\n\t\t\t\t} ).name as PanelPosition;\n\t\t\t} else {\n\t\t\t\tthis.panelView.position = this.panelPosition;\n\t\t\t}\n\t\t} );\n\n\t\t// Listen for keystrokes coming from within #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\tconst closeDropdown = ( data: unknown, cancel: () => void ) => {\n\t\t\tif ( this.isOpen ) {\n\t\t\t\tthis.isOpen = false;\n\t\t\t\tcancel();\n\t\t\t}\n\t\t};\n\n\t\t// Open the dropdown panel using the arrow down key, just like with return or space.\n\t\tthis.keystrokes.set( 'arrowdown', ( data, cancel ) => {\n\t\t\t// Don't open if the dropdown is disabled or already open.\n\t\t\tif ( this.buttonView.isEnabled && !this.isOpen ) {\n\t\t\t\tthis.isOpen = true;\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Block the right arrow key (until nested dropdowns are implemented).\n\t\tthis.keystrokes.set( 'arrowright', ( data, cancel ) => {\n\t\t\tif ( this.isOpen ) {\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Close the dropdown using the arrow left/escape key.\n\t\tthis.keystrokes.set( 'arrowleft', closeDropdown );\n\t\tthis.keystrokes.set( 'esc', closeDropdown );\n\t}\n\n\t/**\n\t * Focuses the {@link #buttonView}.\n\t */\n\tpublic focus(): void {\n\t\tthis.buttonView.focus();\n\t}\n\n\t/**\n\t * Returns {@link #panelView panel} positions to be used by the\n\t * {@link module:utils/dom/position~getOptimalPosition `getOptimalPosition()`}\n\t * utility considering the direction of the language the UI of the editor is displayed in.\n\t *\n\t * @type {module:utils/dom/position~Options#positions}\n\t * @private\n\t */\n\tprivate get _panelPositions(): Array<PositioningFunction> {\n\t\tconst {\n\t\t\tsouth, north,\n\t\t\tsouthEast, southWest,\n\t\t\tnorthEast, northWest,\n\t\t\tsouthMiddleEast, southMiddleWest,\n\t\t\tnorthMiddleEast, northMiddleWest\n\t\t} = DropdownView.defaultPanelPositions;\n\n\t\tif ( this.locale!.uiLanguageDirection !== 'rtl' ) {\n\t\t\treturn [\n\t\t\t\tsouthEast, southWest, southMiddleEast, southMiddleWest, south,\n\t\t\t\tnorthEast, northWest, northMiddleEast, northMiddleWest, north\n\t\t\t];\n\t\t} else {\n\t\t\treturn [\n\t\t\t\tsouthWest, southEast, southMiddleWest, southMiddleEast, south,\n\t\t\t\tnorthWest, northEast, northMiddleWest, northMiddleEast, north\n\t\t\t];\n\t\t}\n\t}\n\n\t/**\n\t * A set of positioning functions used by the dropdown view to determine\n\t * the optimal position (i.e. fitting into the browser viewport) of its\n\t * {@link module:ui/dropdown/dropdownview~DropdownView#panelView panel} when\n\t * {@link module:ui/dropdown/dropdownview~DropdownView#panelPosition} is set to 'auto'`.\n\t *\n\t * The available positioning functions are as follow:\n\t *\n\t * **South**\n\t *\n\t * * `south`\n\t *\n\t *\t\t\t[ Button ]\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\n\t* * `southEast`\n\t*\n\t*\t\t[ Button ]\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\n\t* * `southWest`\n\t*\n\t*\t\t         [ Button ]\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\n\t* * `southMiddleEast`\n\t*\n\t*\t\t  [ Button ]\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\n\t* * `southMiddleWest`\n\t*\n\t*\t\t       [ Button ]\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\n\t* **North**\n\t*\n\t* * `north`\n\t*\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\t\t    [ Button ]\n\t*\n\t* * `northEast`\n\t*\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\t\t[ Button ]\n\t*\n\t* * `northWest`\n\t*\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\t\t         [ Button ]\n\t*\n\t* * `northMiddleEast`\n\t*\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\t\t  [ Button ]\n\t*\n\t* * `northMiddleWest`\n\t*\n\t*\t\t+-----------------+\n\t*\t\t|      Panel      |\n\t*\t\t+-----------------+\n\t*\t\t       [ Button ]\n\t*\n\t* Positioning functions are compatible with {@link module:utils/dom/position~Position}.\n\t*\n\t* The name that position function returns will be reflected in dropdown panel's class that\n\t* controls its placement. See {@link module:ui/dropdown/dropdownview~DropdownView#panelPosition}\n\t* to learn more.\n\t*\n\t* @member {Object} module:ui/dropdown/dropdownview~DropdownView.defaultPanelPositions\n\t*/\n\tpublic static defaultPanelPositions: Record<string, PositioningFunction> = {\n\t\tsouth: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 2,\n\t\t\t\tname: 's'\n\t\t\t};\n\t\t},\n\t\tsouthEast: buttonRect => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left,\n\t\t\t\tname: 'se'\n\t\t\t};\n\t\t},\n\t\tsouthWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - panelRect.width + buttonRect.width,\n\t\t\t\tname: 'sw'\n\t\t\t};\n\t\t},\n\t\tsouthMiddleEast: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 4,\n\t\t\t\tname: 'sme'\n\t\t\t};\n\t\t},\n\t\tsouthMiddleWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) * 3 / 4,\n\t\t\t\tname: 'smw'\n\t\t\t};\n\t\t},\n\t\tnorth: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 2,\n\t\t\t\tname: 'n'\n\t\t\t};\n\t\t},\n\t\tnorthEast: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left,\n\t\t\t\tname: 'ne'\n\t\t\t};\n\t\t},\n\t\tnorthWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - panelRect.width + buttonRect.width,\n\t\t\t\tname: 'nw'\n\t\t\t};\n\t\t},\n\t\tnorthMiddleEast: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 4,\n\t\t\t\tname: 'nme'\n\t\t\t};\n\t\t},\n\t\tnorthMiddleWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) * 3 / 4,\n\t\t\t\tname: 'nmw'\n\t\t\t};\n\t\t}\n\t};\n\n\t/**\n\t * A function used to calculate the optimal position for the dropdown panel.\n\t *\n\t * @protected\n\t * @member {Function} module:ui/dropdown/dropdownview~DropdownView._getOptimalPosition\n\t */\n\tprivate static _getOptimalPosition = getOptimalPosition;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/focuscycler\n */\n\nimport {\n\tisVisible,\n\ttype ArrayOrItem,\n\ttype FocusTracker,\n\ttype KeystrokeHandler\n} from '@ckeditor/ckeditor5-utils';\n\nimport type View from './view';\nimport type ViewCollection from './viewcollection';\n\n/**\n * A utility class that helps cycling over focusable {@link module:ui/view~View views} in a\n * {@link module:ui/viewcollection~ViewCollection} when the focus is tracked by the\n * {@link module:utils/focustracker~FocusTracker} instance. It helps implementing keyboard\n * navigation in HTML forms, toolbars, lists and the like.\n *\n * To work properly it requires:\n * * a collection of focusable (HTML `tabindex` attribute) views that implement the `focus()` method,\n * * an associated focus tracker to determine which view is focused.\n *\n * A simple cycler setup can look like this:\n *\n *\t\tconst focusables = new ViewCollection();\n *\t\tconst focusTracker = new FocusTracker();\n *\n *\t\t// Add focusable views to the focus tracker.\n *\t\tfocusTracker.add( ... );\n *\n * Then, the cycler can be used manually:\n *\n *\t\tconst cycler = new FocusCycler( { focusables, focusTracker } );\n *\n *\t\t// Will focus the first focusable view in #focusables.\n *\t\tcycler.focusFirst();\n *\n *\t\t// Will log the next focusable item in #focusables.\n *\t\tconsole.log( cycler.next );\n *\n * Alternatively, it can work side by side with the {@link module:utils/keystrokehandler~KeystrokeHandler}:\n *\n *\t\tconst keystrokeHandler = new KeystrokeHandler();\n *\n *\t\t// Activate the keystroke handler.\n *\t\tkeystrokeHandler.listenTo( sourceOfEvents );\n *\n *\t\tconst cycler = new FocusCycler( {\n *\t\t\tfocusables, focusTracker, keystrokeHandler,\n *\t\t\tactions: {\n *\t\t\t\t// When arrowup of arrowleft is detected by the #keystrokeHandler,\n *\t\t\t\t// focusPrevious() will be called on the cycler.\n *\t\t\t\tfocusPrevious: [ 'arrowup', 'arrowleft' ],\n *\t\t\t}\n *\t\t} );\n *\n * Check out the {@glink framework/guides/deep-dive/ui/focus-tracking \"Deep dive into focus tracking\" guide} to learn more.\n */\nexport default class FocusCycler {\n\tpublic readonly focusables: ViewCollection;\n\tpublic readonly focusTracker: FocusTracker;\n\tpublic readonly keystrokeHandler?: KeystrokeHandler;\n\tpublic readonly actions?: FocusCyclerActions;\n\n\t/**\n\t * Creates an instance of the focus cycler utility.\n\t *\n\t * @param {Object} options Configuration options.\n\t * @param {module:utils/collection~Collection|Object} options.focusables\n\t * @param {module:utils/focustracker~FocusTracker} options.focusTracker\n\t * @param {module:utils/keystrokehandler~KeystrokeHandler} [options.keystrokeHandler]\n\t * @param {Object} [options.actions]\n\t */\n\tconstructor( options: {\n\t\tfocusables: ViewCollection;\n\t\tfocusTracker: FocusTracker;\n\t\tkeystrokeHandler?: KeystrokeHandler;\n\t\tactions?: FocusCyclerActions;\n\t} ) {\n\t\tthis.focusables = options.focusables;\n\t\tthis.focusTracker = options.focusTracker;\n\t\tthis.keystrokeHandler = options.keystrokeHandler;\n\t\tthis.actions = options.actions;\n\n\t\t/**\n\t\t * A {@link module:ui/view~View view} collection that the cycler operates on.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/collection~Collection} #focusables\n\t\t */\n\n\t\t/**\n\t\t * A focus tracker instance that the cycler uses to determine the current focus\n\t\t * state in {@link #focusables}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker} #focusTracker\n\t\t */\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}\n\t\t * which can respond to certain keystrokes and cycle the focus.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler} #keystrokeHandler\n\t\t */\n\n\t\t/**\n\t\t * Actions that the cycler can take when a keystroke is pressed. Requires\n\t\t * `options.keystrokeHandler` to be passed and working. When an action is\n\t\t * performed, `preventDefault` and `stopPropagation` will be called on the event\n\t\t * the keystroke fired in the DOM.\n\t\t *\n\t\t *\t\tactions: {\n\t\t *\t\t\t// Will call #focusPrevious() when arrowleft or arrowup is pressed.\n\t\t *\t\t\tfocusPrevious: [ 'arrowleft', 'arrowup' ],\n\t\t *\n\t\t *\t\t\t// Will call #focusNext() when arrowdown is pressed.\n\t\t *\t\t\tfocusNext: 'arrowdown'\n\t\t *\t\t}\n\t\t *\n\t\t * @readonly\n\t\t * @member {Object} #actions\n\t\t */\n\n\t\tif ( options.actions && options.keystrokeHandler ) {\n\t\t\tfor ( const methodName in options.actions ) {\n\t\t\t\tlet actions = options.actions[ methodName as keyof FocusCyclerActions ]!;\n\n\t\t\t\tif ( typeof actions == 'string' ) {\n\t\t\t\t\tactions = [ actions ];\n\t\t\t\t}\n\n\t\t\t\tfor ( const keystroke of actions ) {\n\t\t\t\t\toptions.keystrokeHandler.set( keystroke, ( data, cancel ) => {\n\t\t\t\t\t\tthis[ methodName as keyof FocusCyclerActions ]();\n\t\t\t\t\t\tcancel();\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns the first focusable view in {@link #focusables}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t *\n\t * @readonly\n\t * @member {module:ui/view~View|null} #first\n\t */\n\tpublic get first(): FocusableView | null {\n\t\treturn ( this.focusables.find( isFocusable ) || null ) as FocusableView | null;\n\t}\n\n\t/**\n\t * Returns the last focusable view in {@link #focusables}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t *\n\t * @readonly\n\t * @member {module:ui/view~View|null} #last\n\t */\n\tpublic get last(): FocusableView | null {\n\t\treturn ( this.focusables.filter( isFocusable ).slice( -1 )[ 0 ] || null ) as FocusableView | null;\n\t}\n\n\t/**\n\t * Returns the next focusable view in {@link #focusables} based on {@link #current}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t *\n\t * @readonly\n\t * @member {module:ui/view~View|null} #next\n\t */\n\tpublic get next(): FocusableView | null {\n\t\treturn this._getFocusableItem( 1 );\n\t}\n\n\t/**\n\t * Returns the previous focusable view in {@link #focusables} based on {@link #current}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t *\n\t * @readonly\n\t * @member {module:ui/view~View|null} #previous\n\t */\n\tpublic get previous(): FocusableView | null {\n\t\treturn this._getFocusableItem( -1 );\n\t}\n\n\t/**\n\t * An index of the view in the {@link #focusables} which is focused according\n\t * to {@link #focusTracker}. Returns `null` when there is no such view.\n\t *\n\t * @readonly\n\t * @member {Number|null} #current\n\t */\n\tpublic get current(): number | null {\n\t\tlet index: number | null = null;\n\n\t\t// There's no focused view in the focusables.\n\t\tif ( this.focusTracker.focusedElement === null ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tthis.focusables.find( ( view, viewIndex ) => {\n\t\t\tconst focused = view.element === this.focusTracker.focusedElement;\n\n\t\t\tif ( focused ) {\n\t\t\t\tindex = viewIndex;\n\t\t\t}\n\n\t\t\treturn focused;\n\t\t} );\n\n\t\treturn index;\n\t}\n\n\t/**\n\t * Focuses the {@link #first} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusFirst(): void {\n\t\tthis._focus( this.first );\n\t}\n\n\t/**\n\t * Focuses the {@link #last} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusLast(): void {\n\t\tthis._focus( this.last );\n\t}\n\n\t/**\n\t * Focuses the {@link #next} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusNext(): void {\n\t\tthis._focus( this.next );\n\t}\n\n\t/**\n\t * Focuses the {@link #previous} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusPrevious(): void {\n\t\tthis._focus( this.previous );\n\t}\n\n\t/**\n\t * Focuses the given view if it exists.\n\t *\n\t * @protected\n\t * @param {module:ui/view~View} view\n\t */\n\tprivate _focus( view: FocusableView | null ) {\n\t\tif ( view ) {\n\t\t\tview.focus();\n\t\t}\n\t}\n\n\t/**\n\t * Returns the next or previous focusable view in {@link #focusables} with respect\n\t * to {@link #current}.\n\t *\n\t * @protected\n\t * @param {Number} step Either `1` for checking forward from {@link #current} or\n\t * `-1` for checking backwards.\n\t * @returns {module:ui/view~View|null}\n\t */\n\tprivate _getFocusableItem( step: number ): FocusableView | null {\n\t\t// Cache for speed.\n\t\tconst current = this.current;\n\t\tconst collectionLength = this.focusables.length;\n\n\t\tif ( !collectionLength ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// Start from the beginning if no view is focused.\n\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/206\n\t\tif ( current === null ) {\n\t\t\treturn this[ step === 1 ? 'first' : 'last' ];\n\t\t}\n\n\t\t// Cycle in both directions.\n\t\tlet index = ( current + collectionLength + step ) % collectionLength;\n\n\t\tdo {\n\t\t\tconst view = this.focusables.get( index )!;\n\n\t\t\tif ( isFocusable( view ) ) {\n\t\t\t\treturn view as FocusableView;\n\t\t\t}\n\n\t\t\t// Cycle in both directions.\n\t\t\tindex = ( index + collectionLength + step ) % collectionLength;\n\t\t} while ( index !== current );\n\n\t\treturn null;\n\t}\n}\n\nexport type FocusableView = View & { focus(): void };\n\nexport interface FocusCyclerActions {\n\tfocusFirst?: ArrayOrItem<string>;\n\tfocusLast?: ArrayOrItem<string>;\n\tfocusNext?: ArrayOrItem<string>;\n\tfocusPrevious?: ArrayOrItem<string>;\n}\n\n// Checks whether a view is focusable.\n//\n// @private\n// @param {module:ui/view~View} view A view to be checked.\n// @returns {Boolean}\nfunction isFocusable( view: View & { focus?: unknown } ) {\n\treturn !!( view.focus && isVisible( view.element ) );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/toolbarseparatorview\n */\n\nimport View from '../view';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The toolbar separator view class.\n *\n * @extends module:ui/view~View\n */\nexport default class ToolbarSeparatorView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-toolbar__separator'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/toolbarlinebreakview\n */\n\nimport View from '../view';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The toolbar line break view class.\n *\n * @extends module:ui/view~View\n */\nexport default class ToolbarLineBreakView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-toolbar__line-break'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { ToolbarConfig, ToolbarConfigItem } from '@ckeditor/ckeditor5-core';\n\n/**\n * @module ui/toolbar/normalizetoolbarconfig\n */\n\n/**\n * Normalizes the toolbar configuration (`config.toolbar`), which:\n *\n * * may be defined as an `Array`:\n *\n * \t\ttoolbar: [ 'heading', 'bold', 'italic', 'link', ... ]\n *\n * * or an `Object`:\n *\n *\t\ttoolbar: {\n *\t\t\titems: [ 'heading', 'bold', 'italic', 'link', ... ],\n *\t\t\tremoveItems: [ 'bold' ],\n *\t\t\t...\n *\t\t}\n *\n * * or may not be defined at all (`undefined`)\n *\n * and returns it in the object form.\n *\n * @param {Array|Object|undefined} config The value of `config.toolbar`.\n * @returns {Object} A normalized toolbar config object.\n */\nexport default function normalizeToolbarConfig(\n\tconfig: ToolbarConfig | undefined\n): {\n\titems: Array<ToolbarConfigItem>;\n\tremoveItems: Array<string>;\n\tshouldNotGroupWhenFull?: boolean;\n} {\n\tif ( Array.isArray( config ) ) {\n\t\treturn {\n\t\t\titems: config,\n\t\t\tremoveItems: []\n\t\t};\n\t}\n\n\tif ( !config ) {\n\t\treturn {\n\t\t\titems: [],\n\t\t\tremoveItems: []\n\t\t};\n\t}\n\n\treturn Object.assign( {\n\t\titems: [],\n\t\tremoveItems: []\n\t}, config );\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./toolbar.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/toolbarview\n */\n\nimport View from '../view';\nimport FocusCycler from '../focuscycler';\nimport ToolbarSeparatorView from './toolbarseparatorview';\nimport ToolbarLineBreakView from './toolbarlinebreakview';\nimport preventDefault from '../bindings/preventdefault';\nimport { createDropdown, addToolbarToDropdown } from '../dropdown/utils';\nimport normalizeToolbarConfig from './normalizetoolbarconfig';\n\nimport type ComponentFactory from '../componentfactory';\nimport type ViewCollection from '../viewcollection';\nimport type DropdownView from '../dropdown/dropdownview';\nimport type DropdownPanelFocusable from '../dropdown/dropdownpanelfocusable';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\tRect,\n\tResizeObserver,\n\tglobal,\n\tisVisible,\n\tlogWarning,\n\ttype CollectionAddEvent,\n\ttype CollectionChangeEvent,\n\ttype CollectionRemoveEvent,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport {\n\ticons,\n\ttype ToolbarConfig,\n\ttype ToolbarConfigItem\n} from '@ckeditor/ckeditor5-core';\n\nimport { isObject } from 'lodash-es';\n\nimport '../../theme/components/toolbar/toolbar.css';\n\nconst { threeVerticalDots } = icons;\n\nconst NESTED_TOOLBAR_ICONS: Record<string, string | undefined> = {\n\talignLeft: icons.alignLeft,\n\tbold: icons.bold,\n\timportExport: icons.importExport,\n\tparagraph: icons.paragraph,\n\tplus: icons.plus,\n\ttext: icons.text,\n\tthreeVerticalDots: icons.threeVerticalDots\n};\n\n/**\n * The toolbar view class.\n *\n * @extends module:ui/view~View\n * @implements module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable\n */\nexport default class ToolbarView extends View implements DropdownPanelFocusable {\n\tpublic readonly options: ToolbarOptions;\n\tpublic readonly items: ViewCollection;\n\tpublic readonly focusTracker: FocusTracker;\n\tpublic readonly keystrokes: KeystrokeHandler;\n\tpublic readonly itemsView: ItemsView;\n\tpublic readonly children: ViewCollection;\n\tpublic readonly focusables: ViewCollection;\n\n\tdeclare public locale: Locale;\n\tdeclare public ariaLabel: string;\n\tdeclare public maxWidth: string;\n\tdeclare public class: string | undefined;\n\tdeclare public isCompact: boolean;\n\tdeclare public isVertical: boolean;\n\n\tprivate readonly _focusCycler: FocusCycler;\n\tprivate readonly _behavior: ToolbarBehavior;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/toolbar/toolbarview~ToolbarView} class.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param {module:utils/locale~Locale} locale The localization services instance.\n\t * @param {module:ui/toolbar/toolbarview~ToolbarOptions} [options] Configuration options of the toolbar.\n\t */\n\tconstructor( locale: Locale, options?: ToolbarOptions ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\t\tconst t = this.t!;\n\n\t\t/**\n\t\t * A reference to the options object passed to the constructor.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ToolbarOptions}\n\t\t */\n\t\tthis.options = options || {};\n\n\t\t/**\n\t\t * Label used by assistive technologies to describe this toolbar element.\n\t\t *\n\t\t * @default 'Editor toolbar'\n\t\t * @member {String} #ariaLabel\n\t\t */\n\t\tthis.set( 'ariaLabel', t( 'Editor toolbar' ) );\n\n\t\t/**\n\t\t * The maximum width of the toolbar element.\n\t\t *\n\t\t * **Note**: When set to a specific value (e.g. `'200px'`), the value will affect the behavior of the\n\t\t * {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull}\n\t\t * option by changing the number of {@link #items} that will be displayed in the toolbar at a time.\n\t\t *\n\t\t * @observable\n\t\t * @default 'auto'\n\t\t * @member {String} #maxWidth\n\t\t */\n\t\tthis.set( 'maxWidth', 'auto' );\n\n\t\t/**\n\t\t * A collection of toolbar items (buttons, dropdowns, etc.).\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.items = this.createCollection();\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the toolbar.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}\n\t\t * to handle keyboard navigation in the toolbar.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * An additional CSS class added to the {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #class\n\t\t */\n\t\tthis.set( 'class', undefined );\n\n\t\t/**\n\t\t * When set true, makes the toolbar look compact with {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @default false\n\t\t * @member {String} #isCompact\n\t\t */\n\t\tthis.set( 'isCompact', false );\n\n\t\t/**\n\t\t * A (child) view containing {@link #items toolbar items}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ItemsView}\n\t\t */\n\t\tthis.itemsView = new ItemsView( locale );\n\n\t\t/**\n\t\t * A top–level collection aggregating building blocks of the toolbar.\n\t\t *\n\t\t *\t┌───────────────── ToolbarView ─────────────────┐\n\t\t *\t| ┌──────────────── #children ────────────────┐ |\n\t\t *\t| |   ┌──────────── #itemsView ───────────┐   | |\n\t\t *\t| |   | [ item1 ] [ item2 ] ... [ itemN ] |   | |\n\t\t *\t| |   └──────────────────────────────────-┘   | |\n\t\t *\t| └───────────────────────────────────────────┘ |\n\t\t *\t└───────────────────────────────────────────────┘\n\t\t *\n\t\t * By default, it contains the {@link #itemsView} but it can be extended with additional\n\t\t * UI elements when necessary.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\t\tthis.children.add( this.itemsView );\n\n\t\t/**\n\t\t * A collection of {@link #items} that take part in the focus cycling\n\t\t * (i.e. navigation using the keyboard). Usually, it contains a subset of {@link #items} with\n\t\t * some optional UI elements that also belong to the toolbar and should be focusable\n\t\t * by the user.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.focusables = this.createCollection();\n\n\t\t/**\n\t\t * Controls the orientation of toolbar items. Only available when\n\t\t * {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull dynamic items grouping}\n\t\t * is **disabled**.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isVertical\n\t\t */\n\n\t\t/**\n\t\t * Helps cycling over {@link #focusables focusable items} in the toolbar.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\n\t\tconst isRtl = locale.uiLanguageDirection === 'rtl';\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this.focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate toolbar items backwards using the arrow[left,up] keys.\n\t\t\t\tfocusPrevious: [ isRtl ? 'arrowright' : 'arrowleft', 'arrowup' ],\n\n\t\t\t\t// Navigate toolbar items forwards using the arrow[right,down] keys.\n\t\t\t\tfocusNext: [ isRtl ? 'arrowleft' : 'arrowright', 'arrowdown' ]\n\t\t\t}\n\t\t} );\n\n\t\tconst classes = [\n\t\t\t'ck',\n\t\t\t'ck-toolbar',\n\t\t\tbind.to( 'class' ),\n\t\t\tbind.if( 'isCompact', 'ck-toolbar_compact' )\n\t\t];\n\n\t\tif ( this.options.shouldGroupWhenFull && this.options.isFloating ) {\n\t\t\tclasses.push( 'ck-toolbar_floating' );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: classes,\n\t\t\t\trole: 'toolbar',\n\t\t\t\t'aria-label': bind.to( 'ariaLabel' ),\n\t\t\t\tstyle: {\n\t\t\t\t\tmaxWidth: bind.to( 'maxWidth' )\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tchildren: this.children,\n\n\t\t\ton: {\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/206\n\t\t\t\tmousedown: preventDefault( this )\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * An instance of the active toolbar behavior that shapes its look and functionality.\n\t\t *\n\t\t * See {@link module:ui/toolbar/toolbarview~ToolbarBehavior} to learn more.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ToolbarBehavior}\n\t\t */\n\t\tthis._behavior = this.options.shouldGroupWhenFull ? new DynamicGrouping( this ) : new StaticLayout( this );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Children added before rendering should be known to the #focusTracker.\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t}\n\n\t\tthis.items.on<CollectionAddEvent<View>>( 'add', ( evt, item ) => {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t} );\n\n\t\tthis.items.on<CollectionRemoveEvent<View>>( 'remove', ( evt, item ) => {\n\t\t\tthis.focusTracker.remove( item.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\tthis._behavior.render( this );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tthis._behavior.destroy();\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\n\t\treturn super.destroy();\n\t}\n\n\t/**\n\t * Focuses the first focusable in {@link #focusables}.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Focuses the last focusable in {@link #focusables}.\n\t */\n\tpublic focusLast(): void {\n\t\tthis._focusCycler.focusLast();\n\t}\n\n\t/**\n\t * A utility that expands the plain toolbar configuration into\n\t * {@link module:ui/toolbar/toolbarview~ToolbarView#items} using a given component factory.\n\t *\n\t * @param {Array.<String>|Object} itemsOrConfig The toolbar items or the entire toolbar configuration object.\n\t * @param {module:ui/componentfactory~ComponentFactory} factory A factory producing toolbar items.\n\t * @param {Array.<String>} [removeItems] An array of items names to be removed from the configuration. When present, applies\n\t * to this toolbar and all nested ones as well.\n\t */\n\tpublic fillFromConfig(\n\t\titemsOrConfig: ToolbarConfig | undefined,\n\t\tfactory: ComponentFactory,\n\t\tremoveItems?: Array<string>\n\t): void {\n\t\tconst config = normalizeToolbarConfig( itemsOrConfig );\n\t\tconst normalizedRemoveItems = removeItems || config.removeItems;\n\t\tconst itemsToAdd = this._cleanItemsConfiguration( config.items, factory, normalizedRemoveItems )\n\t\t\t.map( item => {\n\t\t\t\tif ( isObject( item ) ) {\n\t\t\t\t\treturn this._createNestedToolbarDropdown( item, factory, normalizedRemoveItems );\n\t\t\t\t} else if ( item === '|' ) {\n\t\t\t\t\treturn new ToolbarSeparatorView();\n\t\t\t\t} else if ( item === '-' ) {\n\t\t\t\t\treturn new ToolbarLineBreakView();\n\t\t\t\t}\n\n\t\t\t\treturn factory.create( item );\n\t\t\t} )\n\t\t\t.filter( ( item ): item is View => !!item );\n\n\t\tthis.items.addMany( itemsToAdd );\n\t}\n\n\t/**\n\t * Cleans up the {@link module:ui/toolbar/toolbarview~ToolbarView#items} of the toolbar by removing unwanted items and\n\t * duplicated (obsolete) separators or line breaks.\n\t *\n\t * @private\n\t * @param {Array.<String>} items The toolbar items configuration.\n\t * @param {module:ui/componentfactory~ComponentFactory} factory A factory producing toolbar items.\n\t * @param {Array.<String>} removeItems An array of items names to be removed from the configuration.\n\t * @returns {Array.<String>}  Items after the clean-up.\n\t */\n\tprivate _cleanItemsConfiguration(\n\t\titems: Array<ToolbarConfigItem>,\n\t\tfactory: ComponentFactory,\n\t\tremoveItems: Array<string>\n\t) {\n\t\tconst filteredItems = items\n\t\t\t.filter( ( item, idx, items ) => {\n\t\t\t\tif ( item === '|' ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\t// Items listed in `config.removeItems` should not be added to the toolbar.\n\t\t\t\tif ( removeItems.indexOf( item as any ) !== -1 ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\tif ( item === '-' ) {\n\t\t\t\t\t// The toolbar line breaks must not be rendered when toolbar grouping is enabled.\n\t\t\t\t\t// (https://github.com/ckeditor/ckeditor5/issues/8582)\n\t\t\t\t\tif ( this.options.shouldGroupWhenFull ) {\n\t\t\t\t\t\t/**\n\t\t\t\t\t\t * The toolbar multiline breaks (`-` items) only work when the automatic button grouping\n\t\t\t\t\t\t * is disabled in the toolbar configuration.\n\t\t\t\t\t\t * To do this, set the `shouldNotGroupWhenFull` option to `true` in the editor configuration:\n\t\t\t\t\t\t *\n\t\t\t\t\t\t *\t\tconst config = {\n\t\t\t\t\t\t *\t\t\ttoolbar: {\n\t\t\t\t\t\t *\t\t\t\titems: [ ... ],\n\t\t\t\t\t\t *\t\t\t\tshouldNotGroupWhenFull: true\n\t\t\t\t\t\t *\t\t\t}\n\t\t\t\t\t\t *\t\t}\n\t\t\t\t\t\t *\n\t\t\t\t\t\t * Learn more about {@link module:core/editor/editorconfig~EditorConfig#toolbar toolbar configuration}.\n\t\t\t\t\t\t *\n\t\t\t\t\t\t * @error toolbarview-line-break-ignored-when-grouping-items\n\t\t\t\t\t\t */\n\t\t\t\t\t\tlogWarning( 'toolbarview-line-break-ignored-when-grouping-items', items );\n\n\t\t\t\t\t\treturn false;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\t// For the items that cannot be instantiated we are sending warning message. We also filter them out.\n\t\t\t\tif ( !isObject( item ) && !factory.has( item ) ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * There was a problem processing the configuration of the toolbar. The item with the given\n\t\t\t\t\t * name does not exist so it was omitted when rendering the toolbar.\n\t\t\t\t\t *\n\t\t\t\t\t * This warning usually shows up when the {@link module:core/plugin~Plugin} which is supposed\n\t\t\t\t\t * to provide a toolbar item has not been loaded or there is a typo in the configuration.\n\t\t\t\t\t *\n\t\t\t\t\t * Make sure the plugin responsible for this toolbar item is loaded and the toolbar configuration\n\t\t\t\t\t * is correct, e.g. {@link module:basic-styles/bold~Bold} is loaded for the `'bold'` toolbar item.\n\t\t\t\t\t *\n\t\t\t\t\t * You can use the following snippet to retrieve all available toolbar items:\n\t\t\t\t\t *\n\t\t\t\t\t *\t\tArray.from( editor.ui.componentFactory.names() );\n\t\t\t\t\t *\n\t\t\t\t\t * @error toolbarview-item-unavailable\n\t\t\t\t\t * @param {String|Object} item The name of the component or nested toolbar definition.\n\t\t\t\t\t */\n\t\t\t\t\tlogWarning( 'toolbarview-item-unavailable', { item } );\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\t\t\t} );\n\n\t\treturn this._cleanSeparatorsAndLineBreaks( filteredItems );\n\t}\n\n\t/**\n\t * Remove leading, trailing, and duplicated separators (`-` and `|`).\n\t *\n\t * @private\n\t * @param {Array.<String>} items\n\t * @returns {Array.<String>} Toolbar items after the separator and line break clean-up.\n\t */\n\tprivate _cleanSeparatorsAndLineBreaks( items: Array<ToolbarConfigItem> ) {\n\t\tconst nonSeparatorPredicate = ( item: ToolbarConfigItem ) => ( item !== '-' && item !== '|' );\n\t\tconst count = items.length;\n\n\t\t// Find an index of the first item that is not a separator.\n\t\tconst firstCommandItemIndex = items.findIndex( nonSeparatorPredicate );\n\n\t\t// Items include separators only. There is no point in displaying them.\n\t\tif ( firstCommandItemIndex === -1 ) {\n\t\t\treturn [];\n\t\t}\n\n\t\t// Search from the end of the list, then convert found index back to the original direction.\n\t\tconst lastCommandItemIndex = count - items\n\t\t\t.slice()\n\t\t\t.reverse()\n\t\t\t.findIndex( nonSeparatorPredicate );\n\n\t\treturn items\n\t\t\t// Return items without the leading and trailing separators.\n\t\t\t.slice( firstCommandItemIndex, lastCommandItemIndex )\n\t\t\t// Remove duplicated separators.\n\t\t\t.filter( ( name, idx, items ) => {\n\t\t\t\t// Filter only separators.\n\t\t\t\tif ( nonSeparatorPredicate( name ) ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t\tconst isDuplicated = idx > 0 && items[ idx - 1 ] === name;\n\n\t\t\t\treturn !isDuplicated;\n\t\t\t} );\n\t}\n\n\t/**\n\t * Creates a user-defined dropdown containing a toolbar with items.\n\t *\n\t * @private\n\t * @param {Object} definition A definition of the nested toolbar dropdown.\n\t * @param {String} definition.label A label of the dropdown.\n\t * @param {String|Boolean} [definition.icon] An icon of the drop-down. One of 'bold', 'plus', 'text', 'importExport', 'alignLeft',\n\t * 'paragraph' or an SVG string. When `false` is passed, no icon will be used.\n\t * @param {Boolean} [definition.withText=false] When set `true`, the label of the dropdown will be visible. See\n\t * {@link module:ui/button/buttonview~ButtonView#withText} to learn more.\n\t * @param {Boolean|String|Function} [definition.tooltip=true] A tooltip of the dropdown button. See\n\t * {@link module:ui/button/buttonview~ButtonView#tooltip} to learn more.\n\t * @param {module:ui/componentfactory~ComponentFactory} componentFactory Component factory used to create items\n\t * of the nested toolbar.\n\t * @returns {module:ui/dropdown/dropdownview~DropdownView}\n\t */\n\tprivate _createNestedToolbarDropdown(\n\t\tdefinition: Exclude<ToolbarConfigItem, string>,\n\t\tcomponentFactory: ComponentFactory,\n\t\tremoveItems: Array<string>\n\t) {\n\t\tlet { label, icon, items, tooltip = true, withText = false } = definition;\n\n\t\titems = this._cleanItemsConfiguration( items, componentFactory, removeItems );\n\n\t\t// There is no point in rendering a dropdown without items.\n\t\tif ( !items.length ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst locale = this.locale;\n\t\tconst dropdownView = createDropdown( locale );\n\n\t\tif ( !label ) {\n\t\t\t/**\n\t\t\t * A dropdown definition in the toolbar configuration is missing a text label.\n\t\t\t *\n\t\t\t * Without a label, the dropdown becomes inaccessible to users relying on assistive technologies.\n\t\t\t * Make sure the `label` property is set in your drop-down configuration:\n\t\t\t *\n \t\t\t *\t\t{\n \t\t\t *\t\t\tlabel: 'A human-readable label',\n\t\t\t *\t\t\ticon: '...',\n\t\t\t *\t\t\titems: [ ... ]\n \t\t\t *\t\t},\n\t\t\t *\n\t\t\t * Learn more about {@link module:core/editor/editorconfig~EditorConfig#toolbar toolbar configuration}.\n\t\t\t *\n\t\t\t * @error toolbarview-nested-toolbar-dropdown-missing-label\n\t\t\t */\n\t\t\tlogWarning( 'toolbarview-nested-toolbar-dropdown-missing-label', definition );\n\t\t}\n\n\t\tdropdownView.class = 'ck-toolbar__nested-toolbar-dropdown';\n\t\tdropdownView.buttonView.set( {\n\t\t\tlabel,\n\t\t\ttooltip,\n\t\t\twithText: !!withText\n\t\t} );\n\n\t\t// Allow disabling icon by passing false.\n\t\tif ( icon !== false ) {\n\t\t\t// A pre-defined icon picked by name, SVG string, a fallback (default) icon.\n\t\t\tdropdownView.buttonView.icon = NESTED_TOOLBAR_ICONS[ icon! ] || icon || threeVerticalDots;\n\t\t}\n\t\t// If the icon is disabled, display the label automatically.\n\t\telse {\n\t\t\tdropdownView.buttonView.withText = true;\n\t\t}\n\n\t\taddToolbarToDropdown( dropdownView, [] );\n\n\t\tdropdownView.toolbarView!.fillFromConfig( items, componentFactory, removeItems );\n\n\t\treturn dropdownView;\n\t}\n\n\t/**\n\t * Fired when some toolbar {@link #items} were grouped or ungrouped as a result of some change\n\t * in the toolbar geometry.\n\t *\n\t * **Note**: This event is always fired **once** regardless of the number of items that were be\n\t * grouped or ungrouped at a time.\n\t *\n\t * **Note**: This event is fired only if the items grouping functionality was enabled in\n\t * the first place (see {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull}).\n\t *\n\t * @event groupedItemsUpdate\n\t */\n}\n\nexport type ToolbarViewGroupedItemsUpdateEvent = {\n\tname: 'groupedItemsUpdate';\n\targs: [];\n};\n\n/**\n * An inner block of the {@link module:ui/toolbar/toolbarview~ToolbarView} hosting its\n * {@link module:ui/toolbar/toolbarview~ToolbarView#items}.\n *\n * @private\n * @extends module:ui/view~View\n */\nclass ItemsView extends View {\n\tpublic children: ViewCollection;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * A collection of items (buttons, dropdowns, etc.).\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-toolbar__items'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n}\n\n/**\n * A toolbar behavior that makes it static and unresponsive to the changes of the environment.\n * At the same time, it also makes it possible to display a toolbar with a vertical layout\n * using the {@link module:ui/toolbar/toolbarview~ToolbarView#isVertical} property.\n *\n * @private\n * @implements module:ui/toolbar/toolbarview~ToolbarBehavior\n */\nclass StaticLayout implements ToolbarBehavior {\n\t/**\n\t * Creates an instance of the {@link module:ui/toolbar/toolbarview~StaticLayout} toolbar\n\t * behavior.\n\t *\n\t * @param {module:ui/toolbar/toolbarview~ToolbarView} view An instance of the toolbar that this behavior\n\t * is added to.\n\t */\n\tconstructor( view: ToolbarView ) {\n\t\tconst bind = view.bindTemplate;\n\n\t\t// Static toolbar can be vertical when needed.\n\t\tview.set( 'isVertical', false );\n\n\t\t// 1:1 pass–through binding, all ToolbarView#items are visible.\n\t\tview.itemsView.children.bindTo( view.items ).using( item => item );\n\n\t\t// 1:1 pass–through binding, all ToolbarView#items are focusable.\n\t\tview.focusables.bindTo( view.items ).using( item => item );\n\n\t\tview.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t// When vertical, the toolbar has an additional CSS class.\n\t\t\t\t\tbind.if( 'isVertical', 'ck-toolbar_vertical' )\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic render(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic destroy(): void {}\n}\n\n/**\n * A toolbar behavior that makes the items respond to changes in the geometry.\n *\n * In a nutshell, it groups {@link module:ui/toolbar/toolbarview~ToolbarView#items}\n * that do not fit visually into a single row of the toolbar (due to limited space).\n * Items that do not fit are aggregated in a dropdown displayed at the end of the toolbar.\n *\n *\t┌──────────────────────────────────────── ToolbarView ──────────────────────────────────────────┐\n *\t| ┌─────────────────────────────────────── #children ─────────────────────────────────────────┐ |\n *\t| |   ┌─────── #itemsView ────────┐ ┌──────────────────────┐ ┌── #groupedItemsDropdown ───┐   | |\n *\t| |   |       #ungroupedItems     | | ToolbarSeparatorView | |        #groupedItems       |   | |\n *\t| |   └──────────────────────────-┘ └──────────────────────┘ └────────────────────────────┘   | |\n *\t| |                                  \\---------- only when toolbar items overflow --------/    | |\n *\t| └───────────────────────────────────────────────────────────────────────────────────────────┘ |\n *\t└───────────────────────────────────────────────────────────────────────────────────────────────┘\n *\n * @private\n * @implements module:ui/toolbar/toolbarview~ToolbarBehavior\n */\nclass DynamicGrouping implements ToolbarBehavior {\n\tpublic readonly view: ToolbarView;\n\tpublic readonly viewChildren: ViewCollection;\n\tpublic readonly viewFocusables: ViewCollection;\n\tpublic readonly viewItemsView: ItemsView;\n\tpublic readonly viewFocusTracker: FocusTracker;\n\tpublic readonly viewLocale: Locale;\n\tpublic readonly ungroupedItems: ViewCollection;\n\tpublic readonly groupedItems: ViewCollection;\n\tpublic readonly groupedItemsDropdown: DropdownView;\n\tpublic resizeObserver: ResizeObserver | null;\n\tpublic cachedPadding: number | null;\n\tpublic shouldUpdateGroupingOnNextResize: boolean;\n\tpublic viewElement: HTMLElement | null | undefined;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/toolbar/toolbarview~DynamicGrouping} toolbar\n\t * behavior.\n\t *\n\t * @param {module:ui/toolbar/toolbarview~ToolbarView} view An instance of the toolbar that this behavior\n\t * is added to.\n\t */\n\tconstructor( view: ToolbarView ) {\n\t\t/**\n\t\t * A toolbar view this behavior belongs to.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar~ToolbarView}\n\t\t */\n\t\tthis.view = view;\n\n\t\t/**\n\t\t * A collection of toolbar children.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.viewChildren = view.children;\n\n\t\t/**\n\t\t * A collection of focusable toolbar elements.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.viewFocusables = view.focusables;\n\n\t\t/**\n\t\t * A view containing toolbar items.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ItemsView}\n\t\t */\n\t\tthis.viewItemsView = view.itemsView;\n\n\t\t/**\n\t\t * Toolbar focus tracker.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.viewFocusTracker = view.focusTracker;\n\n\t\t/**\n\t\t * Toolbar locale.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/locale~Locale}\n\t\t */\n\t\tthis.viewLocale = view.locale;\n\n\t\t/**\n\t\t * Toolbar element.\n\t\t *\n\t\t * @readonly\n\t\t * @member {HTMLElement} #viewElement\n\t\t */\n\n\t\t/**\n\t\t * A subset of toolbar {@link module:ui/toolbar/toolbarview~ToolbarView#items}.\n\t\t * Aggregates items that fit into a single row of the toolbar and were not {@link #groupedItems grouped}\n\t\t * into a {@link #groupedItemsDropdown dropdown}. Items of this collection are displayed in the\n\t\t * {@link module:ui/toolbar/toolbarview~ToolbarView#itemsView}.\n\t\t *\n\t\t * When none of the {@link module:ui/toolbar/toolbarview~ToolbarView#items} were grouped, it\n\t\t * matches the {@link module:ui/toolbar/toolbarview~ToolbarView#items} collection in size and order.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.ungroupedItems = view.createCollection();\n\n\t\t/**\n\t\t * A subset of toolbar {@link module:ui/toolbar/toolbarview~ToolbarView#items}.\n\t\t * A collection of the toolbar items that do not fit into a single row of the toolbar.\n\t\t * Grouped items are displayed in a dedicated {@link #groupedItemsDropdown dropdown}.\n\t\t *\n\t\t * When none of the {@link module:ui/toolbar/toolbarview~ToolbarView#items} were grouped,\n\t\t * this collection is empty.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.groupedItems = view.createCollection();\n\n\t\t/**\n\t\t * The dropdown that aggregates {@link #groupedItems grouped items} that do not fit into a single\n\t\t * row of the toolbar. It is displayed on demand as the last of\n\t\t * {@link module:ui/toolbar/toolbarview~ToolbarView#children toolbar children} and offers another\n\t\t * (nested) toolbar which displays items that would normally overflow.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/dropdown/dropdownview~DropdownView}\n\t\t */\n\t\tthis.groupedItemsDropdown = this._createGroupedItemsDropdown();\n\n\t\t/**\n\t\t * An instance of the resize observer that helps dynamically determine the geometry of the toolbar\n\t\t * and manage items that do not fit into a single row.\n\t\t *\n\t\t * **Note:** Created in {@link #_enableGroupingOnResize}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/dom/resizeobserver~ResizeObserver}\n\t\t */\n\t\tthis.resizeObserver = null;\n\n\t\t/**\n\t\t * A cached value of the horizontal padding style used by {@link #_updateGrouping}\n\t\t * to manage the {@link module:ui/toolbar/toolbarview~ToolbarView#items} that do not fit into\n\t\t * a single toolbar line. This value can be reused between updates because it is unlikely that\n\t\t * the padding will change and re–using `Window.getComputedStyle()` is expensive.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.cachedPadding = null;\n\n\t\t/**\n\t\t * A flag indicating that an items grouping update has been queued (e.g. due to the toolbar being visible)\n\t\t * and should be executed immediately the next time the toolbar shows up.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis.shouldUpdateGroupingOnNextResize = false;\n\n\t\t// Only those items that were not grouped are visible to the user.\n\t\tview.itemsView.children.bindTo( this.ungroupedItems ).using( item => item );\n\n\t\t// Make sure all #items visible in the main space of the toolbar are \"focuscycleable\".\n\t\tthis.ungroupedItems.on<CollectionChangeEvent>( 'change', this._updateFocusCycleableItems.bind( this ) );\n\n\t\t// Make sure the #groupedItemsDropdown is also included in cycling when it appears.\n\t\tview.children.on<CollectionChangeEvent>( 'change', this._updateFocusCycleableItems.bind( this ) );\n\n\t\t// ToolbarView#items is dynamic. When an item is added or removed, it should be automatically\n\t\t// represented in either grouped or ungrouped items at the right index.\n\t\t// In other words #items == concat( #ungroupedItems, #groupedItems )\n\t\t// (in length and order).\n\t\tview.items.on<CollectionChangeEvent<View>>( 'change', ( evt, changeData ) => {\n\t\t\tconst index = changeData.index;\n\t\t\tconst added = Array.from( changeData.added );\n\n\t\t\t// Removing.\n\t\t\tfor ( const removedItem of changeData.removed ) {\n\t\t\t\tif ( index >= this.ungroupedItems.length ) {\n\t\t\t\t\tthis.groupedItems.remove( removedItem );\n\t\t\t\t} else {\n\t\t\t\t\tthis.ungroupedItems.remove( removedItem );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Adding.\n\t\t\tfor ( let currentIndex = index; currentIndex < index + added.length; currentIndex++ ) {\n\t\t\t\tconst addedItem = added[ currentIndex - index ];\n\n\t\t\t\tif ( currentIndex > this.ungroupedItems.length ) {\n\t\t\t\t\tthis.groupedItems.add( addedItem, currentIndex - this.ungroupedItems.length );\n\t\t\t\t} else {\n\t\t\t\t\tthis.ungroupedItems.add( addedItem, currentIndex );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// When new ungrouped items join in and land in #ungroupedItems, there's a chance it causes\n\t\t\t// the toolbar to overflow.\n\t\t\t// Consequently if removed from grouped or ungrouped items, there is a chance\n\t\t\t// some new space is available and we could do some ungrouping.\n\t\t\tthis._updateGrouping();\n\t\t} );\n\n\t\tview.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t// To group items dynamically, the toolbar needs a dedicated CSS class.\n\t\t\t\t\t'ck-toolbar_grouping'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Enables dynamic items grouping based on the dimensions of the toolbar.\n\t *\n\t * @param {module:ui/toolbar/toolbarview~ToolbarView} view An instance of the toolbar that this behavior\n\t * is added to.\n\t */\n\tpublic render( view: ToolbarView ): void {\n\t\tthis.viewElement = view.element;\n\n\t\tthis._enableGroupingOnResize();\n\t\tthis._enableGroupingOnMaxWidthChange( view );\n\t}\n\n\t/**\n\t * Cleans up the internals used by this behavior.\n\t */\n\tpublic destroy(): void {\n\t\t// The dropdown may not be in ToolbarView#children at the moment of toolbar destruction\n\t\t// so let's make sure it's actually destroyed along with the toolbar.\n\t\tthis.groupedItemsDropdown.destroy();\n\n\t\tthis.resizeObserver!.destroy();\n\t}\n\n\t/**\n\t * When called, it will check if any of the {@link #ungroupedItems} do not fit into a single row of the toolbar,\n\t * and it will move them to the {@link #groupedItems} when it happens.\n\t *\n\t * At the same time, it will also check if there is enough space in the toolbar for the first of the\n\t * {@link #groupedItems} to be returned back to {@link #ungroupedItems} and still fit into a single row\n\t * without the toolbar wrapping.\n\t *\n\t * @protected\n\t */\n\tprivate _updateGrouping() {\n\t\t// Do no grouping–related geometry analysis when the toolbar is detached from visible DOM,\n\t\t// for instance before #render(), or after render but without a parent or a parent detached\n\t\t// from DOM. DOMRects won't work anyway and there will be tons of warning in the console and\n\t\t// nothing else. This happens, for instance, when the toolbar is detached from DOM and\n\t\t// some logic adds or removes its #items.\n\t\tif ( !this.viewElement!.ownerDocument.body.contains( this.viewElement! ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not update grouping when the element is invisible. Such toolbar has DOMRect filled with zeros\n\t\t// and that would cause all items to be grouped. Instead, queue the grouping so it runs next time\n\t\t// the toolbar is visible (the next ResizeObserver callback execution). This is handy because\n\t\t// the grouping could be caused by increasing the #maxWidth when the toolbar was invisible and the next\n\t\t// time it shows up, some items could actually be ungrouped (https://github.com/ckeditor/ckeditor5/issues/6575).\n\t\tif ( !isVisible( this.viewElement ) ) {\n\t\t\tthis.shouldUpdateGroupingOnNextResize = true;\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Remember how many items were initially grouped so at the it is possible to figure out if the number\n\t\t// of grouped items has changed. If the number has changed, geometry of the toolbar has also changed.\n\t\tconst initialGroupedItemsCount = this.groupedItems.length;\n\t\tlet wereItemsGrouped;\n\n\t\t// Group #items as long as some wrap to the next row. This will happen, for instance,\n\t\t// when the toolbar is getting narrow and there is not enough space to display all items in\n\t\t// a single row.\n\t\twhile ( this._areItemsOverflowing ) {\n\t\t\tthis._groupLastItem();\n\n\t\t\twereItemsGrouped = true;\n\t\t}\n\n\t\t// If none were grouped now but there were some items already grouped before,\n\t\t// then, what the hell, maybe let's see if some of them can be ungrouped. This happens when,\n\t\t// for instance, the toolbar is stretching and there's more space in it than before.\n\t\tif ( !wereItemsGrouped && this.groupedItems.length ) {\n\t\t\t// Ungroup items as long as none are overflowing or there are none to ungroup left.\n\t\t\twhile ( this.groupedItems.length && !this._areItemsOverflowing ) {\n\t\t\t\tthis._ungroupFirstItem();\n\t\t\t}\n\n\t\t\t// If the ungrouping ended up with some item wrapping to the next row,\n\t\t\t// put it back to the group toolbar (\"undo the last ungroup\"). We don't know whether\n\t\t\t// an item will wrap or not until we ungroup it (that's a DOM/CSS thing) so this\n\t\t\t// clean–up is vital for the algorithm.\n\t\t\tif ( this._areItemsOverflowing ) {\n\t\t\t\tthis._groupLastItem();\n\t\t\t}\n\t\t}\n\n\t\tif ( this.groupedItems.length !== initialGroupedItemsCount ) {\n\t\t\tthis.view.fire<ToolbarViewGroupedItemsUpdateEvent>( 'groupedItemsUpdate' );\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when {@link module:ui/toolbar/toolbarview~ToolbarView#element} children visually overflow,\n\t * for instance if the toolbar is narrower than its members. Returns `false` otherwise.\n\t *\n\t * @private\n\t * @type {Boolean}\n\t */\n\tprivate get _areItemsOverflowing() {\n\t\t// An empty toolbar cannot overflow.\n\t\tif ( !this.ungroupedItems.length ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst element = this.viewElement;\n\t\tconst uiLanguageDirection = this.viewLocale.uiLanguageDirection;\n\t\tconst lastChildRect = new Rect( element!.lastChild as any );\n\t\tconst toolbarRect = new Rect( element! );\n\n\t\tif ( !this.cachedPadding ) {\n\t\t\tconst computedStyle = global.window.getComputedStyle( element! );\n\t\t\tconst paddingProperty = uiLanguageDirection === 'ltr' ? 'paddingRight' : 'paddingLeft';\n\n\t\t\t// parseInt() is essential because of quirky floating point numbers logic and DOM.\n\t\t\t// If the padding turned out too big because of that, the grouped items dropdown would\n\t\t\t// always look (from the Rect perspective) like it overflows (while it's not).\n\t\t\tthis.cachedPadding = Number.parseInt( computedStyle[ paddingProperty ] );\n\t\t}\n\n\t\tif ( uiLanguageDirection === 'ltr' ) {\n\t\t\treturn lastChildRect.right > toolbarRect.right - this.cachedPadding;\n\t\t} else {\n\t\t\treturn lastChildRect.left < toolbarRect.left + this.cachedPadding;\n\t\t}\n\t}\n\n\t/**\n\t * Enables the functionality that prevents {@link #ungroupedItems} from overflowing (wrapping to the next row)\n\t * upon resize when there is little space available. Instead, the toolbar items are moved to the\n\t * {@link #groupedItems} collection and displayed in a dropdown at the end of the row (which has its own nested toolbar).\n\t *\n\t * When called, the toolbar will automatically analyze the location of its {@link #ungroupedItems} and \"group\"\n\t * them in the dropdown if necessary. It will also observe the browser window for size changes in\n\t * the future and respond to them by grouping more items or reverting already grouped back, depending\n\t * on the visual space available.\n\t *\n\t * @private\n\t */\n\tprivate _enableGroupingOnResize() {\n\t\tlet previousWidth: number | undefined;\n\n\t\t// TODO: Consider debounce.\n\t\tthis.resizeObserver = new ResizeObserver( this.viewElement!, entry => {\n\t\t\tif ( !previousWidth || previousWidth !== entry.contentRect.width || this.shouldUpdateGroupingOnNextResize ) {\n\t\t\t\tthis.shouldUpdateGroupingOnNextResize = false;\n\n\t\t\t\tthis._updateGrouping();\n\n\t\t\t\tpreviousWidth = entry.contentRect.width;\n\t\t\t}\n\t\t} );\n\n\t\tthis._updateGrouping();\n\t}\n\n\t/**\n\t * Enables the grouping functionality, just like {@link #_enableGroupingOnResize} but the difference is that\n\t * it listens to the changes of {@link module:ui/toolbar/toolbarview~ToolbarView#maxWidth} instead.\n\t *\n\t * @private\n\t */\n\tprivate _enableGroupingOnMaxWidthChange( view: View ) {\n\t\tview.on<ObservableChangeEvent>( 'change:maxWidth', () => {\n\t\t\tthis._updateGrouping();\n\t\t} );\n\t}\n\n\t/**\n\t * When called, it will remove the last item from {@link #ungroupedItems} and move it back\n\t * to the {@link #groupedItems} collection.\n\t *\n\t * The opposite of {@link #_ungroupFirstItem}.\n\t *\n\t * @private\n\t */\n\tprivate _groupLastItem() {\n\t\tif ( !this.groupedItems.length ) {\n\t\t\tthis.viewChildren.add( new ToolbarSeparatorView() );\n\t\t\tthis.viewChildren.add( this.groupedItemsDropdown );\n\t\t\tthis.viewFocusTracker.add( this.groupedItemsDropdown.element! );\n\t\t}\n\n\t\tthis.groupedItems.add( this.ungroupedItems.remove( this.ungroupedItems.last! ), 0 );\n\t}\n\n\t/**\n\t * Moves the very first item belonging to {@link #groupedItems} back\n\t * to the {@link #ungroupedItems} collection.\n\t *\n\t * The opposite of {@link #_groupLastItem}.\n\t *\n\t * @private\n\t */\n\tprivate _ungroupFirstItem() {\n\t\tthis.ungroupedItems.add( this.groupedItems.remove( this.groupedItems.first! ) );\n\n\t\tif ( !this.groupedItems.length ) {\n\t\t\tthis.viewChildren.remove( this.groupedItemsDropdown );\n\t\t\tthis.viewChildren.remove( this.viewChildren.last! );\n\t\t\tthis.viewFocusTracker.remove( this.groupedItemsDropdown.element! );\n\t\t}\n\t}\n\n\t/**\n\t * Creates the {@link #groupedItemsDropdown} that hosts the members of the {@link #groupedItems}\n\t * collection when there is not enough space in the toolbar to display all items in a single row.\n\t *\n\t * @private\n\t * @returns {module:ui/dropdown/dropdownview~DropdownView}\n\t */\n\tprivate _createGroupedItemsDropdown() {\n\t\tconst locale = this.viewLocale;\n\t\tconst t = locale.t;\n\t\tconst dropdown = createDropdown( locale );\n\n\t\tdropdown.class = 'ck-toolbar__grouped-dropdown';\n\n\t\t// Make sure the dropdown never sticks out to the left/right. It should be under the main toolbar.\n\t\t// (https://github.com/ckeditor/ckeditor5/issues/5608)\n\t\tdropdown.panelPosition = locale.uiLanguageDirection === 'ltr' ? 'sw' : 'se';\n\n\t\taddToolbarToDropdown( dropdown, [] );\n\n\t\tdropdown.buttonView.set( {\n\t\t\tlabel: t( 'Show more items' ),\n\t\t\ttooltip: true,\n\t\t\ttooltipPosition: locale.uiLanguageDirection === 'rtl' ? 'se' : 'sw',\n\t\t\ticon: threeVerticalDots\n\t\t} );\n\n\t\t// 1:1 pass–through binding.\n\t\tdropdown.toolbarView!.items.bindTo( this.groupedItems ).using( item => item );\n\n\t\treturn dropdown;\n\t}\n\n\t/**\n\t * Updates the {@link module:ui/toolbar/toolbarview~ToolbarView#focusables focus–cycleable items}\n\t * collection so it represents the up–to–date state of the UI from the perspective of the user.\n\t *\n\t * For instance, the {@link #groupedItemsDropdown} can show up and hide but when it is visible,\n\t * it must be subject to focus cycling in the toolbar.\n\t *\n\t * See the {@link module:ui/toolbar/toolbarview~ToolbarView#focusables collection} documentation\n\t * to learn more about the purpose of this method.\n\t *\n\t * @private\n\t */\n\tprivate _updateFocusCycleableItems() {\n\t\tthis.viewFocusables.clear();\n\n\t\tthis.ungroupedItems.map( item => {\n\t\t\tthis.viewFocusables.add( item );\n\t\t} );\n\n\t\tif ( this.groupedItems.length ) {\n\t\t\tthis.viewFocusables.add( this.groupedItemsDropdown );\n\t\t}\n\t}\n}\n\n/**\n * Options passed to the {@link module:ui/toolbar/toolbarview~ToolbarView#constructor} of the toolbar.\n *\n * @interface module:ui/toolbar/toolbarview~ToolbarOptions\n */\nexport interface ToolbarOptions {\n\tshouldGroupWhenFull?: boolean;\n\tisFloating?: boolean;\n}\n\n/**\n * When set to `true`, the toolbar will automatically group {@link module:ui/toolbar/toolbarview~ToolbarView#items} that\n * would normally wrap to the next line when there is not enough space to display them in a single row, for\n * instance, if the parent container of the toolbar is narrow. For toolbars in absolutely positioned containers\n * without width restrictions also the {@link module:ui/toolbar/toolbarview~ToolbarOptions#isFloating} option is required to be `true`.\n *\n * See also: {@link module:ui/toolbar/toolbarview~ToolbarView#maxWidth}.\n *\n * @member {Boolean} module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull\n */\n\n/**\n * This option should be enabled for toolbars in absolutely positioned containers without width restrictions\n * to enable automatic {@link module:ui/toolbar/toolbarview~ToolbarView#items} grouping.\n * When this option is set to `true`, the items will stop wrapping to the next line\n * and together with {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull},\n * this will allow grouping them when there is not enough space in a single row.\n *\n * @member {Boolean} module:ui/toolbar/toolbarview~ToolbarOptions#isFloating\n */\n\n/**\n * A class interface defining the behavior of the {@link module:ui/toolbar/toolbarview~ToolbarView}.\n *\n * Toolbar behaviors extend its look and functionality and have an impact on the\n * {@link module:ui/toolbar/toolbarview~ToolbarView#element} template or\n * {@link module:ui/toolbar/toolbarview~ToolbarView#render rendering}. They can be enabled\n * conditionally, e.g. depending on the configuration of the toolbar.\n *\n * @private\n * @interface module:ui/toolbar/toolbarview~ToolbarBehavior\n */\ninterface ToolbarBehavior {\n\trender( view: ToolbarView ): void;\n\tdestroy(): void;\n}\n\n/**\n * Creates a new toolbar behavior instance.\n *\n * The instance is created in the {@link module:ui/toolbar/toolbarview~ToolbarView#constructor} of the toolbar.\n * This is the right place to extend the {@link module:ui/toolbar/toolbarview~ToolbarView#template} of\n * the toolbar, define extra toolbar properties, etc.\n *\n * @method #constructor\n * @param {module:ui/toolbar/toolbarview~ToolbarView} view An instance of the toolbar that this behavior is added to.\n */\n\n/**\n * A method called after the toolbar has been {@link module:ui/toolbar/toolbarview~ToolbarView#render rendered}.\n * It can be used to, for example, customize the behavior of the toolbar when its {@link module:ui/toolbar/toolbarview~ToolbarView#element}\n * is available.\n *\n * @readonly\n * @member {Function} #render\n * @param {module:ui/toolbar/toolbarview~ToolbarView} view An instance of the toolbar being rendered.\n */\n\n/**\n * A method called after the toolbar has been {@link module:ui/toolbar/toolbarview~ToolbarView#destroy destroyed}.\n * It allows cleaning up after the toolbar behavior, for instance, this is the right place to detach\n * event listeners, free up references, etc.\n *\n * @readonly\n * @member {Function} #destroy\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { ListenerBinding } from '../template';\nimport type View from '../view';\n\n/**\n * @module ui/bindings/preventdefault\n */\n\n/**\n * A helper which executes a native `Event.preventDefault()` if the target of an event equals the\n * {@link module:ui/view~View#element element of the view}. It shortens the definition of a\n * {@link module:ui/view~View#template template}.\n *\n *\t\t// In a class extending View.\n *\t\timport preventDefault from '@ckeditor/ckeditor5-ui/src/bindings/preventdefault';\n *\n *\t\t// ...\n *\n *\t\tthis.setTemplate( {\n *\t\t\ttag: 'div',\n *\n *\t\t\ton: {\n *\t\t\t\t// Prevent the default mousedown action on this view.\n *\t\t\t\tmousedown: preventDefault( this )\n *\t\t\t}\n *\t\t} );\n *\n * @param {module:ui/view~View} view View instance that defines the template.\n * @returns {module:ui/template~TemplateToBinding}\n */\nexport default function preventDefault( view: View ): ListenerBinding {\n\treturn view.bindTemplate.to( evt => {\n\t\tif ( evt.target === view.element ) {\n\t\t\tevt.preventDefault();\n\t\t}\n\t} );\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./list.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/list/listview\n */\n\nimport View from '../view';\nimport FocusCycler from '../focuscycler';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype Locale\n} from '@ckeditor/ckeditor5-utils';\n\nimport type ListItemView from './listitemview';\nimport type DropdownPanelFocusable from '../dropdown/dropdownpanelfocusable';\nimport type ViewCollection from '../viewcollection';\n\nimport '../../theme/components/list/list.css';\n\n/**\n * The list view class.\n *\n * @extends module:ui/view~View\n * @implements module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable\n */\nexport default class ListView extends View implements DropdownPanelFocusable {\n\tpublic readonly items: ViewCollection;\n\tpublic readonly focusTracker: FocusTracker;\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\tprivate readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * Collection of the child list views.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.items = this.createCollection();\n\n\t\t/**\n\t\t * Tracks information about DOM focus in the list.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * Helps cycling over focusable {@link #items} in the list.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this.items,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate list items backwards using the arrowup key.\n\t\t\t\tfocusPrevious: 'arrowup',\n\n\t\t\t\t// Navigate toolbar items forwards using the arrowdown key.\n\t\t\t\tfocusNext: 'arrowdown'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'ul',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-reset',\n\t\t\t\t\t'ck-list'\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: this.items\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Items added before rendering should be known to the #focusTracker.\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t}\n\n\t\tthis.items.on<CollectionAddEvent<ListItemView>>( 'add', ( evt, item ) => {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t} );\n\n\t\tthis.items.on<CollectionRemoveEvent<ListItemView>>( 'remove', ( evt, item ) => {\n\t\t\tthis.focusTracker.remove( item.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the first focusable in {@link #items}.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Focuses the last focusable in {@link #items}.\n\t */\n\tpublic focusLast(): void {\n\t\tthis._focusCycler.focusLast();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/list/listitemview\n */\n\nimport View from '../view';\n\nimport type { FocusableView } from '../focuscycler';\nimport type ViewCollection from '../viewcollection';\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The list item view class.\n *\n * @extends module:ui/view~View\n */\nexport default class ListItemView extends View {\n\tpublic readonly children: ViewCollection;\n\n\tdeclare public isVisible: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * Controls whether the item view is visible. Visible by default, list items are hidden\n\t\t * using a CSS class.\n\t\t *\n\t\t * @observable\n\t\t * @default true\n\t\t * @member {Boolean} #isVisible\n\t\t */\n\t\tthis.set( 'isVisible', true );\n\n\t\t/**\n\t\t * Collection of the child views inside of the list item {@link #element}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'li',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-list__item',\n\t\t\t\t\tbind.if( 'isVisible', 'ck-hidden', value => !value )\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the list item.\n\t */\n\tpublic focus(): void {\n\t\t( this.children.first as FocusableView ).focus();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/list/listseparatorview\n */\n\nimport View from '../view';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The list separator view class.\n *\n * @extends module:ui/view~View\n */\nexport default class ListSeparatorView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'li',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-list__separator'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./toolbardropdown.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./listdropdown.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/utils\n */\n\nimport DropdownPanelView from './dropdownpanelview';\nimport DropdownView from './dropdownview';\nimport DropdownButtonView from './button/dropdownbuttonview';\nimport ToolbarView from '../toolbar/toolbarview';\nimport ListView from '../list/listview';\nimport ListItemView from '../list/listitemview';\nimport ListSeparatorView from '../list/listseparatorview';\nimport ButtonView from '../button/buttonview';\nimport SplitButtonView from './button/splitbuttonview';\nimport SwitchButtonView from '../button/switchbuttonview';\n\nimport clickOutsideHandler from '../bindings/clickoutsidehandler';\n\nimport { global, priorities, logWarning, type Collection, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/dropdown/toolbardropdown.css';\nimport '../../theme/components/dropdown/listdropdown.css';\n\nimport type { default as View, UIViewRenderEvent } from '../view';\nimport type { ButtonExecuteEvent } from '../button/button';\nimport type Model from '../model';\nimport type DropdownButton from './button/dropdownbutton';\nimport type { FocusableView } from '../focuscycler';\nimport type { FalsyValue } from '../template';\nimport type { ObservableChangeEvent } from '@ckeditor/ckeditor5-utils/src/observablemixin';\n\n/**\n * A helper for creating dropdowns. It creates an instance of a {@link module:ui/dropdown/dropdownview~DropdownView dropdown},\n * with a {@link module:ui/dropdown/button/dropdownbutton~DropdownButton button},\n * {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView panel} and all standard dropdown's behaviors.\n *\n * # Creating dropdowns\n *\n * By default, the default {@link module:ui/dropdown/button/dropdownbuttonview~DropdownButtonView} class is used as\n * definition of the button:\n *\n *\t\tconst dropdown = createDropdown( model );\n *\n *\t\t// Configure dropdown's button properties:\n *\t\tdropdown.buttonView.set( {\n *\t\t\tlabel: 'A dropdown',\n *\t\t\twithText: true\n *\t\t} );\n *\n *\t\tdropdown.render();\n *\n *\t\t// Will render a dropdown labeled \"A dropdown\" with an empty panel.\n *\t\tdocument.body.appendChild( dropdown.element );\n *\n * You can also provide other button views (they need to implement the\n * {@link module:ui/dropdown/button/dropdownbutton~DropdownButton} interface). For instance, you can use\n * {@link module:ui/dropdown/button/splitbuttonview~SplitButtonView} to create a dropdown with a split button.\n *\n *\t\tconst dropdown = createDropdown( locale, SplitButtonView );\n *\n *\t\t// Configure dropdown's button properties:\n *\t\tdropdown.buttonView.set( {\n *\t\t\tlabel: 'A dropdown',\n *\t\t\twithText: true\n *\t\t} );\n *\n *\t\tdropdown.buttonView.on( 'execute', () => {\n *\t\t\t// Add the behavior of the \"action part\" of the split button.\n *\t\t\t// Split button consists of the \"action part\" and \"arrow part\".\n *\t\t\t// The arrow opens the dropdown while the action part can have some other behavior.\n * \t\t} );\n *\n *\t\tdropdown.render();\n *\n *\t\t// Will render a dropdown labeled \"A dropdown\" with an empty panel.\n *\t\tdocument.body.appendChild( dropdown.element );\n *\n * # Adding content to the dropdown's panel\n *\n * The content of the panel can be inserted directly into the `dropdown.panelView.element`:\n *\n *\t\tdropdown.panelView.element.textContent = 'Content of the panel';\n *\n * However, most of the time you will want to add there either a {@link module:ui/list/listview~ListView list of options}\n * or a list of buttons (i.e. a {@link module:ui/toolbar/toolbarview~ToolbarView toolbar}).\n * To simplify the task, you can use, respectively, {@link module:ui/dropdown/utils~addListToDropdown} or\n * {@link module:ui/dropdown/utils~addToolbarToDropdown} utils.\n *\n * @param {module:utils/locale~Locale} locale The locale instance.\n * @param {Function} ButtonClass The dropdown button view class. Needs to implement the\n * {@link module:ui/dropdown/button/dropdownbutton~DropdownButton} interface.\n * @returns {module:ui/dropdown/dropdownview~DropdownView} The dropdown view instance.\n */\nexport function createDropdown(\n\tlocale: Locale | undefined,\n\tButtonClass: new ( locale?: Locale ) => DropdownButton & FocusableView = DropdownButtonView\n): DropdownView {\n\tconst buttonView = new ButtonClass( locale );\n\n\tconst panelView = new DropdownPanelView( locale );\n\tconst dropdownView = new DropdownView( locale, buttonView, panelView );\n\n\tbuttonView.bind( 'isEnabled' ).to( dropdownView );\n\n\tif ( buttonView instanceof SplitButtonView ) {\n\t\tbuttonView.arrowView.bind( 'isOn' ).to( dropdownView, 'isOpen' );\n\t} else {\n\t\tbuttonView.bind( 'isOn' ).to( dropdownView, 'isOpen' );\n\t}\n\n\taddDefaultBehavior( dropdownView );\n\n\treturn dropdownView;\n}\n\n/**\n * Adds an instance of {@link module:ui/toolbar/toolbarview~ToolbarView} to a dropdown.\n *\n *\t\tconst buttons = [];\n *\n *\t\t// Either create a new ButtonView instance or create existing.\n *\t\tbuttons.push( new ButtonView() );\n *\t\tbuttons.push( editor.ui.componentFactory.create( 'someButton' ) );\n *\n *\t\tconst dropdown = createDropdown( locale );\n *\n *\t\taddToolbarToDropdown( dropdown, buttons );\n *\n *\t\tdropdown.toolbarView.isVertical = true;\n *\n *\t\t// Will render a vertical button dropdown labeled \"A button dropdown\"\n *\t\t// with a button group in the panel containing two buttons.\n *\t\tdropdown.render()\n *\t\tdocument.body.appendChild( dropdown.element );\n *\n * **Note:** To improve the accessibility, you can tell the dropdown to focus the first active button of the toolbar when the dropdown\n * {@link module:ui/dropdown/dropdownview~DropdownView#isOpen gets open}. See the documentation of `options` to learn more.\n *\n * See {@link module:ui/dropdown/utils~createDropdown} and {@link module:ui/toolbar/toolbarview~ToolbarView}.\n *\n * @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView A dropdown instance to which `ToolbarView` will be added.\n * @param {Iterable.<module:ui/button/buttonview~ButtonView>} buttons\n * @param {Object} [options]\n * @param {Boolean} [options.enableActiveItemFocusOnDropdownOpen=false] When set `true`, the focus will automatically move to the first\n * active {@link module:ui/toolbar/toolbarview~ToolbarView#items item} of the toolbar upon\n * {@link module:ui/dropdown/dropdownview~DropdownView#isOpen opening} the dropdown. Active items are those with the `isOn` property set\n * `true` (for instance {@link module:ui/button/buttonview~ButtonView buttons}). If no active items is found, the toolbar will be focused\n * as a whole resulting in the focus moving to its first focusable item (default behavior of\n * {@link module:ui/dropdown/dropdownview~DropdownView}).\n */\nexport function addToolbarToDropdown(\n\tdropdownView: DropdownView,\n\tbuttons: Array<ButtonView>,\n\toptions: { enableActiveItemFocusOnDropdownOpen?: boolean } = {}\n): void {\n\tconst locale = dropdownView.locale;\n\tconst t = locale.t;\n\tconst toolbarView = dropdownView.toolbarView = new ToolbarView( locale );\n\n\ttoolbarView.set( 'ariaLabel', t( 'Dropdown toolbar' ) );\n\n\tdropdownView.extendTemplate( {\n\t\tattributes: {\n\t\t\tclass: [ 'ck-toolbar-dropdown' ]\n\t\t}\n\t} );\n\n\tbuttons.map( view => toolbarView.items.add( view ) );\n\n\tif ( options.enableActiveItemFocusOnDropdownOpen ) {\n\t\t// Accessibility: Focus the first active button in the toolbar when the dropdown gets open.\n\t\tfocusChildOnDropdownOpen( dropdownView, () => toolbarView.items.find( ( item: any ) => item.isOn ) );\n\t}\n\n\tdropdownView.panelView.children.add( toolbarView );\n\ttoolbarView.items.delegate( 'execute' ).to( dropdownView );\n}\n\n/**\n * Adds an instance of {@link module:ui/list/listview~ListView} to a dropdown.\n *\n *\t\tconst items = new Collection();\n *\n *\t\titems.add( {\n *\t\t\ttype: 'button',\n *\t\t\tmodel: new Model( {\n *\t\t\t\twithText: true,\n *\t\t\t\tlabel: 'First item',\n *\t\t\t\tlabelStyle: 'color: red'\n *\t\t\t} )\n *\t\t} );\n *\n *\t\titems.add( {\n *\t\t\t type: 'button',\n *\t\t\t model: new Model( {\n *\t\t\t\twithText: true,\n *\t\t\t\tlabel: 'Second item',\n *\t\t\t\tlabelStyle: 'color: green',\n *\t\t\t\tclass: 'foo'\n *\t\t\t} )\n *\t\t} );\n *\n *\t\tconst dropdown = createDropdown( locale );\n *\n *\t\taddListToDropdown( dropdown, items );\n *\n *\t\t// Will render a dropdown with a list in the panel containing two items.\n *\t\tdropdown.render()\n *\t\tdocument.body.appendChild( dropdown.element );\n *\n * The `items` collection passed to this methods controls the presence and attributes of respective\n * {@link module:ui/list/listitemview~ListItemView list items}.\n *\n * **Note:** To improve the accessibility, when a list is added to the dropdown using this helper the dropdown will automatically attempt\n * to focus the first active item (a host to a {@link module:ui/button/buttonview~ButtonView} with\n * {@link module:ui/button/buttonview~ButtonView#isOn} set `true`) or the very first item when none are active.\n *\n * See {@link module:ui/dropdown/utils~createDropdown} and {@link module:list/list~List}.\n *\n * @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView A dropdown instance to which `ListVIew` will be added.\n * @param {Iterable.<module:ui/dropdown/utils~ListDropdownItemDefinition>} items\n * A collection of the list item definitions to populate the list.\n */\nexport function addListToDropdown(\n\tdropdownView: DropdownView,\n\titems: Collection<ListDropdownItemDefinition>\n): void {\n\tconst locale = dropdownView.locale;\n\tconst listView = dropdownView.listView = new ListView( locale );\n\n\tlistView.items.bindTo( items ).using( def => {\n\t\tif ( def.type === 'separator' ) {\n\t\t\treturn new ListSeparatorView( locale );\n\t\t} else if ( def.type === 'button' || def.type === 'switchbutton' ) {\n\t\t\tconst listItemView = new ListItemView( locale );\n\t\t\tlet buttonView;\n\n\t\t\tif ( def.type === 'button' ) {\n\t\t\t\tbuttonView = new ButtonView( locale );\n\t\t\t} else {\n\t\t\t\tbuttonView = new SwitchButtonView( locale );\n\t\t\t}\n\n\t\t\t// Bind all model properties to the button view.\n\t\t\tbuttonView.bind( ...Object.keys( def.model ) as Array<keyof ButtonView> ).to( def.model );\n\t\t\tbuttonView.delegate( 'execute' ).to( listItemView );\n\n\t\t\tlistItemView.children.add( buttonView );\n\n\t\t\treturn listItemView;\n\t\t}\n\n\t\treturn null;\n\t} );\n\n\tdropdownView.panelView.children.add( listView );\n\n\tlistView.items.delegate( 'execute' ).to( dropdownView );\n\n\t// Accessibility: Focus the first active button in the list when the dropdown gets open.\n\tfocusChildOnDropdownOpen( dropdownView, () => listView.items.find( item => {\n\t\tif ( item instanceof ListItemView ) {\n\t\t\treturn ( item.children.first as any ).isOn;\n\t\t}\n\n\t\treturn false;\n\t} ) );\n}\n\n/**\n * A helper to be used on an existing {@link module:ui/dropdown/dropdownview~DropdownView} that focuses\n * a specific child in DOM when the dropdown {@link module:ui/dropdown/dropdownview~DropdownView#isOpen gets open}.\n *\n * @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView A dropdown instance to which the focus behavior will be added.\n * @param {Function} childSelectorCallback A callback executed when the dropdown gets open. It should return a {@link module:ui/view~View}\n * instance (child of {@link module:ui/dropdown/dropdownview~DropdownView#panelView}) that will get focused or a falsy value.\n * If falsy value is returned, a default behavior of the dropdown will engage focusing the first focusable child in\n * the {@link module:ui/dropdown/dropdownview~DropdownView#panelView}.\n */\nexport function focusChildOnDropdownOpen(\n\tdropdownView: DropdownView,\n\tchildSelectorCallback: () => View | FalsyValue\n): void {\n\tdropdownView.on<ObservableChangeEvent>( 'change:isOpen', () => {\n\t\tif ( !dropdownView.isOpen ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst childToFocus: ( View & { focus?: () => void } ) | FalsyValue = childSelectorCallback();\n\n\t\tif ( !childToFocus ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( typeof childToFocus.focus === 'function' ) {\n\t\t\tchildToFocus.focus();\n\t\t} else {\n\t\t\t/**\n\t\t\t * The child view of a {@link module:ui/dropdown/dropdownview~DropdownView dropdown} is missing the `focus()` method\n\t\t\t * and could not be focused when the dropdown got {@link module:ui/dropdown/dropdownview~DropdownView#isOpen open}.\n\t\t\t *\n\t\t\t * Making the content of a dropdown focusable in this case greatly improves the accessibility. Please make the view instance\n\t\t\t * implements the {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable focusable interface} for the best user\n\t\t\t * experience.\n\t\t\t *\n\t\t\t * @error ui-dropdown-focus-child-on-open-child-missing-focus\n\t\t\t * @param {module:ui/view~View} view\n\t\t\t */\n\t\t\tlogWarning( 'ui-dropdown-focus-child-on-open-child-missing-focus', { view: childToFocus } );\n\t\t}\n\n\t// * Let the panel show up first (do not focus an invisible element).\n\t// * Execute after focusDropdownPanelOnOpen(). See focusDropdownPanelOnOpen() to learn more.\n\t}, { priority: priorities.low - 10 } );\n}\n\n// Add a set of default behaviors to dropdown view.\n//\n// @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\nfunction addDefaultBehavior( dropdownView: DropdownView ) {\n\tcloseDropdownOnClickOutside( dropdownView );\n\tcloseDropdownOnExecute( dropdownView );\n\tcloseDropdownOnBlur( dropdownView );\n\tfocusDropdownContentsOnArrows( dropdownView );\n\tfocusDropdownButtonOnClose( dropdownView );\n\tfocusDropdownPanelOnOpen( dropdownView );\n}\n\n// Adds a behavior to a dropdownView that closes opened dropdown when user clicks outside the dropdown.\n//\n// @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\nfunction closeDropdownOnClickOutside( dropdownView: DropdownView ) {\n\tdropdownView.on<UIViewRenderEvent>( 'render', () => {\n\t\tclickOutsideHandler( {\n\t\t\temitter: dropdownView,\n\t\t\tactivator: () => dropdownView.isOpen,\n\t\t\tcallback: () => {\n\t\t\t\tdropdownView.isOpen = false;\n\t\t\t},\n\t\t\tcontextElements: [ dropdownView.element! ]\n\t\t} );\n\t} );\n}\n\n// Adds a behavior to a dropdownView that closes the dropdown view on \"execute\" event.\n//\n// @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\nfunction closeDropdownOnExecute( dropdownView: DropdownView ) {\n\t// Close the dropdown when one of the list items has been executed.\n\tdropdownView.on<ButtonExecuteEvent>( 'execute', evt => {\n\t\t// Toggling a switch button view should not close the dropdown.\n\t\tif ( evt.source instanceof SwitchButtonView ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdropdownView.isOpen = false;\n\t} );\n}\n\n// Adds a behavior to a dropdown view that closes opened dropdown when it loses focus.\n//\n// @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\nfunction closeDropdownOnBlur( dropdownView: DropdownView ) {\n\tdropdownView.focusTracker.on<ObservableChangeEvent<boolean>>( 'change:isFocused', ( evt, name, isFocused ) => {\n\t\tif ( dropdownView.isOpen && !isFocused ) {\n\t\t\tdropdownView.isOpen = false;\n\t\t}\n\t} );\n}\n\n// Adds a behavior to a dropdownView that focuses the dropdown's panel view contents on keystrokes.\n//\n// @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\nfunction focusDropdownContentsOnArrows( dropdownView: DropdownView ) {\n\t// If the dropdown panel is already open, the arrow down key should focus the first child of the #panelView.\n\tdropdownView.keystrokes.set( 'arrowdown', ( data, cancel ) => {\n\t\tif ( dropdownView.isOpen ) {\n\t\t\tdropdownView.panelView.focus();\n\t\t\tcancel();\n\t\t}\n\t} );\n\n\t// If the dropdown panel is already open, the arrow up key should focus the last child of the #panelView.\n\tdropdownView.keystrokes.set( 'arrowup', ( data, cancel ) => {\n\t\tif ( dropdownView.isOpen ) {\n\t\t\tdropdownView.panelView.focusLast();\n\t\t\tcancel();\n\t\t}\n\t} );\n}\n\n// Adds a behavior that focuses the #buttonView when the dropdown was closed but focus was within the #panelView element.\n// This makes sure the focus is never lost.\n//\n// @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\nfunction focusDropdownButtonOnClose( dropdownView: DropdownView ) {\n\tdropdownView.on<ObservableChangeEvent<boolean>>( 'change:isOpen', ( evt, name, isOpen ) => {\n\t\tif ( isOpen ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If the dropdown was closed, move the focus back to the button (#12125).\n\t\t// Don't touch the focus, if it moved somewhere else (e.g. moved to the editing root on #execute) (#12178).\n\t\t// Note: Don't use the state of the DropdownView#focusTracker here. It fires #blur with the timeout.\n\t\tif ( dropdownView.panelView.element!.contains( global.document.activeElement ) ) {\n\t\t\tdropdownView.buttonView.focus();\n\t\t}\n\t} );\n}\n\n// Adds a behavior that focuses the #panelView when dropdown gets open (accessibility).\n//\n// @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\nfunction focusDropdownPanelOnOpen( dropdownView: DropdownView ) {\n\tdropdownView.on<ObservableChangeEvent<boolean>>( 'change:isOpen', ( evt, name, isOpen ) => {\n\t\tif ( !isOpen ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Focus the first item in the dropdown when the dropdown opened.\n\t\tdropdownView.panelView.focus();\n\n\t// * Let the panel show up first (do not focus an invisible element).\n\t// * Also, execute before focusChildOnDropdownOpen() to make sure this helper does not break the\n\t//   focus of a specific child by kicking in too late and resetting the focus in the panel.\n\t}, { priority: 'low' } );\n}\n\n/**\n * A definition of the list item used by the {@link module:ui/dropdown/utils~addListToDropdown}\n * utility.\n *\n * @typedef {Object} module:ui/dropdown/utils~ListDropdownItemDefinition\n *\n * @property {String} type Either `'separator'`, `'button'` or `'switchbutton'`.\n * @property {module:ui/model~Model} [model] Model of the item (when **not** `'separator'`).\n * Its properties fuel the newly created list item (or its children, depending on the `type`).\n */\nexport type ListDropdownItemDefinition = {\n\ttype: 'separator';\n} | {\n\ttype: 'button' | 'switchbutton';\n\tmodel: Model;\n};\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./editorui.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editorui/editoruiview\n */\n\nimport View from '../view';\nimport BodyCollection from './bodycollection';\n\nimport '../../theme/components/editorui/editorui.css';\n\nimport type EditableUIView from '../editableui/editableuiview';\nimport type { Locale, LocaleTranslate } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The editor UI view class. Base class for the editor main views.\n *\n * @extends module:ui/view~View\n */\nexport default abstract class EditorUIView extends View {\n\tpublic readonly body: BodyCollection;\n\n\tdeclare public locale: Locale;\n\tdeclare public t: LocaleTranslate;\n\n\tpublic abstract get editable(): EditableUIView;\n\n\t/**\n\t * Creates an instance of the editor UI view class.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The locale instance.\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * Collection of the child views, detached from the DOM\n\t\t * structure of the editor, like panels, icons etc.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection} #body\n\t\t */\n\t\tthis.body = new BodyCollection( locale );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.body.attachToDom();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tthis.body.detachFromDom();\n\n\t\treturn super.destroy();\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./label.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/label/labelview\n */\n\nimport View from '../view';\n\nimport { uid, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/label/label.css';\n\n/**\n * The label view class.\n *\n * @extends module:ui/view~View\n */\nexport default class LabelView extends View {\n\tpublic readonly id: string;\n\n\tdeclare public text: string | undefined;\n\tdeclare public for: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * The text of the label.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #text\n\t\t */\n\t\tthis.set( 'text', undefined );\n\n\t\t/**\n\t\t * The `for` attribute of the label (i.e. to pair with an `<input>` element).\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #for\n\t\t */\n\t\tthis.set( 'for', undefined );\n\n\t\t/**\n\t\t * An unique id of the label. It can be used by other UI components to reference\n\t\t * the label, for instance, using the `aria-describedby` DOM attribute.\n\t\t *\n\t\t * @member {String} #id\n\t\t */\n\t\tthis.id = `ck-editor__label_${ uid() }`;\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'label',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-label'\n\t\t\t\t],\n\t\t\t\tid: this.id,\n\t\t\t\tfor: bind.to( 'for' )\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( 'text' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editableui/editableuiview\n */\n\nimport View from '../view';\n\nimport type { View as EditingView } from '@ckeditor/ckeditor5-engine';\nimport type { Locale, ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The editable UI view class.\n *\n * @extends module:ui/view~View\n */\nexport default class EditableUIView extends View {\n\tpublic name: string | null;\n\n\tdeclare public isFocused: boolean;\n\n\tprotected _editingView: EditingView;\n\n\tprivate _editableElement: HTMLElement | null | undefined;\n\tprivate _hasExternalElement: boolean;\n\n\t/**\n\t * Creates an instance of EditableUIView class.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The locale instance.\n\t * @param {module:engine/view/view~View} editingView The editing view instance the editable is related to.\n\t * @param {HTMLElement} [editableElement] The editable element. If not specified, this view\n\t * should create it. Otherwise, the existing element should be used.\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\teditingView: EditingView,\n\t\teditableElement?: HTMLElement\n\t) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-content',\n\t\t\t\t\t'ck-editor__editable',\n\t\t\t\t\t'ck-rounded-corners'\n\t\t\t\t],\n\t\t\t\tlang: locale.contentLanguage,\n\t\t\t\tdir: locale.contentLanguageDirection\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * The name of the editable UI view.\n\t\t *\n\t\t * @member {String} #name\n\t\t */\n\t\tthis.name = null;\n\n\t\t/**\n\t\t * Controls whether the editable is focused, i.e. the user is typing in it.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isFocused\n\t\t */\n\t\tthis.set( 'isFocused', false );\n\n\t\t/**\n\t\t * The element which is the main editable element (usually the one with `contentEditable=\"true\"`).\n\t\t *\n\t\t * @private\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis._editableElement = editableElement;\n\n\t\t/**\n\t\t * Whether an external {@link #_editableElement} was passed into the constructor, which also means\n\t\t * the view will not render its {@link #template}.\n\t\t *\n\t\t * @private\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._hasExternalElement = !!this._editableElement;\n\n\t\t/**\n\t\t * The editing view instance the editable is related to. Editable uses the editing\n\t\t * view to dynamically modify its certain DOM attributes after {@link #render rendering}.\n\t\t *\n\t\t * **Note**: The DOM attributes are performed by the editing view and not UI\n\t\t * {@link module:ui/view~View#bindTemplate template bindings} because once rendered,\n\t\t * the editable DOM element must remain under the full control of the engine to work properly.\n\t\t *\n\t\t * @protected\n\t\t * @type {module:engine/view/view~View}\n\t\t */\n\t\tthis._editingView = editingView;\n\t}\n\n\t/**\n\t * Renders the view by either applying the {@link #template} to the existing\n\t * {@link #_editableElement} or assigning {@link #element} as {@link #_editableElement}.\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tif ( this._hasExternalElement ) {\n\t\t\tthis.template!.apply( this.element = this._editableElement! );\n\t\t} else {\n\t\t\tthis._editableElement = this.element;\n\t\t}\n\n\t\tthis.on<ObservableChangeEvent>( 'change:isFocused', () => this._updateIsFocusedClasses() );\n\t\tthis._updateIsFocusedClasses();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tif ( this._hasExternalElement ) {\n\t\t\tthis.template!.revert( this._editableElement! );\n\t\t}\n\n\t\tsuper.destroy();\n\t}\n\n\t/**\n\t * Updates the `ck-focused` and `ck-blurred` CSS classes on the {@link #element} according to\n\t * the {@link #isFocused} property value using the {@link #_editingView editing view} API.\n\t *\n\t * @private\n\t */\n\tprivate _updateIsFocusedClasses() {\n\t\tconst editingView = this._editingView;\n\n\t\tif ( editingView.isRenderingInProgress ) {\n\t\t\tupdateAfterRender( this );\n\t\t} else {\n\t\t\tupdate( this );\n\t\t}\n\n\t\tfunction update( view: EditableUIView ) {\n\t\t\teditingView.change( writer => {\n\t\t\t\tconst viewRoot = editingView.document.getRoot( view.name! )!;\n\n\t\t\t\twriter.addClass( view.isFocused ? 'ck-focused' : 'ck-blurred', viewRoot );\n\t\t\t\twriter.removeClass( view.isFocused ? 'ck-blurred' : 'ck-focused', viewRoot );\n\t\t\t} );\n\t\t}\n\n\t\t// In a case of a multi-root editor, a callback will be attached more than once (one callback for each root).\n\t\t// While executing one callback the `isRenderingInProgress` observable is changing what causes executing another\n\t\t// callback and render is called inside the already pending render.\n\t\t// We need to be sure that callback is executed only when the value has changed from `true` to `false`.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1676.\n\t\tfunction updateAfterRender( view: EditableUIView ) {\n\t\t\teditingView.once<ObservableChangeEvent<boolean>>( 'change:isRenderingInProgress', ( evt, name, value ) => {\n\t\t\t\tif ( !value ) {\n\t\t\t\t\tupdate( view );\n\t\t\t\t} else {\n\t\t\t\t\tupdateAfterRender( view );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editableui/inline/inlineeditableuiview\n */\n\nimport EditableUIView from '../editableuiview';\n\nimport type { View } from '@ckeditor/ckeditor5-engine';\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The inline editable UI class implementing an inline {@link module:ui/editableui/editableuiview~EditableUIView}.\n *\n * @extends module:ui/editableui/editableuiview~EditableUIView\n */\nexport default class InlineEditableUIView extends EditableUIView {\n\tprivate readonly _generateLabel: ( view: InlineEditableUIView ) => string;\n\n\t/**\n\t * Creates an instance of the InlineEditableUIView class.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The locale instance.\n\t * @param {module:engine/view/view~View} editingView The editing view instance the editable is related to.\n\t * @param {HTMLElement} [editableElement] The editable element. If not specified, the\n\t * {@link module:ui/editableui/editableuiview~EditableUIView}\n\t * will create it. Otherwise, the existing element will be used.\n\t * @param {Object} [options] Additional configuration of the view.\n\t * @param {Function} [options.label] A function that gets called with the instance of this view as an argument\n\t * and should return a string that represents the label of the editable for assistive technologies. If not provided,\n\t * a default label generator is used.\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\teditingView: View,\n\t\teditableElement?: HTMLElement,\n\t\toptions: { label?: ( view: InlineEditableUIView ) => string } = {}\n\t) {\n\t\tsuper( locale, editingView, editableElement );\n\n\t\tconst t = locale.t;\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\trole: 'textbox',\n\t\t\t\tclass: 'ck-editor__editable_inline'\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * A function that gets called with the instance of this view as an argument and should return a string that\n\t\t * represents the label of the editable for assistive technologies.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @param {Function}\n\t\t */\n\t\tthis._generateLabel = options.label || ( () => t( 'Editor editing area: %0', this.name! ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tconst editingView = this._editingView;\n\n\t\teditingView.change( writer => {\n\t\t\tconst viewRoot = editingView.document.getRoot( this.name! );\n\n\t\t\twriter.setAttribute( 'aria-label', this._generateLabel( this ), viewRoot! );\n\t\t} );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./formheader.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/formheader/formheaderview\n */\n\nimport View from '../view';\n\nimport '../../theme/components/formheader/formheader.css';\n\nimport type ViewCollection from '../viewcollection';\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The class component representing a form header view. It should be used in more advanced forms to\n * describe the main purpose of the form.\n *\n * By default the component contains a bolded label view that has to be set. The label is usually a short (at most 3-word) string.\n * The component can also be extended by any other elements, like: icons, dropdowns, etc.\n *\n * It is used i.a.\n * by {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView}\n * and {@link module:special-characters/ui/specialcharactersnavigationview~SpecialCharactersNavigationView}.\n *\n * The latter is an example, where the component has been extended by {@link module:ui/dropdown/dropdownview~DropdownView} view.\n *\n * @extends module:ui/view~View\n */\nexport default class FormHeaderView extends View {\n\tpublic readonly children: ViewCollection;\n\n\tpublic declare label: string;\n\tpublic declare class: string | null;\n\n\t/**\n\t * Creates an instance of the form header class.\n\t *\n\t * @param {module:utils/locale~Locale} locale The locale instance.\n\t * @param {Object} options\n\t * @param {String} options.label A label.\n\t * @param {String} [options.class] An additional class.\n\t */\n\tconstructor(\n\t\tlocale: Locale | undefined,\n\t\toptions: { label?: string | null; class?: string | null } = {}\n\t) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * The label of the header.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #label\n\t\t */\n\t\tthis.set( 'label', options.label || '' );\n\n\t\t/**\n\t\t * An additional CSS class added to the {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #class\n\t\t */\n\t\tthis.set( 'class', options.class || null );\n\n\t\t/**\n\t\t * A collection of header items.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form__header',\n\t\t\t\t\tbind.to( 'class' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\n\t\tconst label = new View( locale );\n\n\t\tlabel.setTemplate( {\n\t\t\ttag: 'h2',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form__header__label'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{ text: bind.to( 'label' ) }\n\t\t\t]\n\t\t} );\n\n\t\tthis.children.add( label );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./input.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/input/inputview\n */\n\nimport View from '../view';\nimport {\n\tFocusTracker,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/input/input.css';\n\n/**\n * The base input view class.\n *\n * @extends module:ui/view~View\n */\nexport default class InputView extends View<HTMLInputElement> {\n\tpublic readonly focusTracker: FocusTracker;\n\n\tdeclare public value: string | undefined;\n\tdeclare public id: string | undefined;\n\tdeclare public placeholder: string | undefined;\n\tdeclare public isReadOnly: boolean;\n\tdeclare public hasError: boolean;\n\tdeclare public ariaDescribedById: string | undefined;\n\tdeclare public isFocused: boolean;\n\tdeclare public isEmpty: boolean;\n\tdeclare public inputMode: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * The value of the input.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #value\n\t\t */\n\t\tthis.set( 'value', undefined );\n\n\t\t/**\n\t\t * The `id` attribute of the input (i.e. to pair with a `<label>` element).\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #id\n\t\t */\n\t\tthis.set( 'id', undefined );\n\n\t\t/**\n\t\t * The `placeholder` attribute of the input.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #placeholder\n\t\t */\n\t\tthis.set( 'placeholder', undefined );\n\n\t\t/**\n\t\t * Controls whether the input view is in read-only mode.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isReadOnly\n\t\t */\n\t\tthis.set( 'isReadOnly', false );\n\n\t\t/**\n\t\t * Set to `true` when the field has some error. Usually controlled via\n\t\t * {@link module:ui/labeledinput/labeledinputview~LabeledInputView#errorText}.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #hasError\n\t\t */\n\t\tthis.set( 'hasError', false );\n\n\t\t/**\n\t\t * The `id` of the element describing this field, e.g. when it has\n\t\t * some error; it helps screen readers read the error text.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #ariaDescribedById\n\t\t */\n\t\tthis.set( 'ariaDescribedById', undefined );\n\n\t\t/**\n\t\t * Stores information about the editor UI focus and propagates it so various plugins and components\n\t\t * are unified as a focus group.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker} #focusTracker\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An observable flag set to `true` when the input is currently focused by the user.\n\t\t * Set to `false` otherwise.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isFocused\n\t\t * @default false\n\t\t */\n\t\tthis.bind( 'isFocused' ).to( this.focusTracker );\n\n\t\t/**\n\t\t * An observable flag set to `true` when the input contains no text, i.e.\n\t\t * when {@link #value} is `''`, `null`, or `false`.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isEmpty\n\t\t * @default true\n\t\t */\n\t\tthis.set( 'isEmpty', true );\n\n\t\t/**\n\t\t * Corresponds to the `inputmode` DOM attribute. Can be `text`, `numeric`, `decimal`, etc.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #inputMode\n\t\t * @default 'text'\n\t\t */\n\t\tthis.set( 'inputMode', 'text' );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'input',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-input',\n\t\t\t\t\tbind.if( 'isFocused', 'ck-input_focused' ),\n\t\t\t\t\tbind.if( 'isEmpty', 'ck-input-text_empty' ),\n\t\t\t\t\tbind.if( 'hasError', 'ck-error' )\n\t\t\t\t],\n\t\t\t\tid: bind.to( 'id' ),\n\t\t\t\tplaceholder: bind.to( 'placeholder' ),\n\t\t\t\treadonly: bind.to( 'isReadOnly' ),\n\t\t\t\tinputmode: bind.to( 'inputMode' ),\n\t\t\t\t'aria-invalid': bind.if( 'hasError', true ),\n\t\t\t\t'aria-describedby': bind.to( 'ariaDescribedById' )\n\t\t\t},\n\t\t\ton: {\n\t\t\t\tinput: bind.to( ( ...args ) => {\n\t\t\t\t\tthis.fire( 'input', ...args );\n\t\t\t\t\tthis._updateIsEmpty();\n\t\t\t\t} ),\n\t\t\t\tchange: bind.to( this._updateIsEmpty.bind( this ) )\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * Fired when the user types in the input. Corresponds to the native\n\t\t * DOM `input` event.\n\t\t *\n\t\t * @event input\n\t\t */\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.focusTracker.add( this.element! );\n\n\t\tthis._setDomElementValue( this.value );\n\t\tthis._updateIsEmpty();\n\n\t\t// Bind `this.value` to the DOM element's value.\n\t\t// We cannot use `value` DOM attribute because removing it on Edge does not clear the DOM element's value property.\n\t\tthis.on<ObservableChangeEvent>( 'change:value', ( evt, name, value ) => {\n\t\t\tthis._setDomElementValue( value );\n\t\t\tthis._updateIsEmpty();\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t}\n\n\t/**\n\t * Moves the focus to the input and selects the value.\n\t */\n\tpublic select(): void {\n\t\tthis.element!.select();\n\t}\n\n\t/**\n\t * Focuses the input.\n\t */\n\tpublic focus(): void {\n\t\tthis.element!.focus();\n\t}\n\n\t/**\n\t * Updates the {@link #isEmpty} property value on demand.\n\t *\n\t * @private\n\t */\n\tprivate _updateIsEmpty() {\n\t\tthis.isEmpty = isInputElementEmpty( this.element! );\n\t}\n\n\t/**\n\t * Sets the `value` property of the {@link #element DOM element} on demand.\n\t *\n\t * @private\n\t */\n\tprivate _setDomElementValue( value: any ) {\n\t\tthis.element!.value = ( !value && value !== 0 ) ? '' : value;\n\t}\n}\n\nfunction isInputElementEmpty( domElement: HTMLInputElement ) {\n\treturn !domElement.value;\n}\n\nexport type InputViewInputEvent = {\n\tname: 'input';\n\targs: [ InstanceType<typeof global.InputEvent> ];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/inputtext/inputtextview\n */\n\nimport InputView from '../input/inputview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The text input view class.\n *\n * @extends module:ui/input/inputview~InputView\n */\nexport default class InputTextView extends InputView {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\ttype: 'text',\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-input-text'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/inputnumber/inputnumberview\n */\n\nimport InputView from '../input/inputview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The number input view class.\n *\n * @extends module:ui/input/inputview~InputView\n */\nexport default class InputNumberView extends InputView {\n\tdeclare public min: number | undefined;\n\tdeclare public max: number | undefined;\n\tdeclare public step: number | undefined;\n\n\t/**\n\t * Creates an instance of the input number view.\n\t *\n\t * @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param {Object} [options] The options of the input.\n\t * @param {Number} [options.min] The value of the `min` DOM attribute (the lowest accepted value).\n\t * @param {Number} [options.max] The value of the `max` DOM attribute (the highest accepted value).\n\t * @param {Number} [options.step] The value of the `step` DOM attribute.\n\t */\n\tconstructor(\n\t\tlocale?: Locale,\n\t\t{ min, max, step }: { min?: number; max?: number; step?: number } = {}\n\t) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * The value of the `min` DOM attribute (the lowest accepted value) set on the {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @default undefined\n\t\t * @member {Number} #min\n\t\t */\n\t\tthis.set( 'min', min );\n\n\t\t/**\n\t\t * The value of the `max` DOM attribute (the highest accepted value) set on the {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @default undefined\n\t\t * @member {Number} #max\n\t\t */\n\t\tthis.set( 'max', max );\n\n\t\t/**\n\t\t * The value of the `step` DOM attribute set on the {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @default undefined\n\t\t * @member {Number} #step\n\t\t */\n\t\tthis.set( 'step', step );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\ttype: 'number',\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-input-number'\n\t\t\t\t],\n\t\t\t\tmin: bind.to( 'min' ),\n\t\t\t\tmax: bind.to( 'max' ),\n\t\t\t\tstep: bind.to( 'step' )\n\t\t\t}\n\t\t} );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./labeledfieldview.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/labeledfield/labeledfieldview\n */\n\nimport View from '../view';\nimport LabelView from '../label/labelview';\n\nimport type { FocusableView } from '../focuscycler';\nimport type ViewCollection from '../viewcollection';\n\nimport { uid, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/labeledfield/labeledfieldview.css';\n\n/**\n * The labeled field view class. It can be used to enhance any view with the following features:\n *\n * * a label,\n * * (optional) an error message,\n * * (optional) an info (status) text,\n *\n * all bound logically by proper DOM attributes for UX and accessibility.  It also provides an interface\n * (e.g. observable properties) that allows controlling those additional features.\n *\n * The constructor of this class requires a callback that returns a view to be labeled. The callback\n * is called with unique ids that allow binding of DOM properties:\n *\n *\t\tconst labeledInputView = new LabeledFieldView( locale, ( labeledFieldView, viewUid, statusUid ) => {\n *\t\t\tconst inputView = new InputTextView( labeledFieldView.locale );\n *\n *\t\t\tinputView.set( {\n *\t\t\t\tid: viewUid,\n *\t\t\t\tariaDescribedById: statusUid\n *\t\t\t} );\n *\n *\t\t\tinputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n *\t\t\tinputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n *\n *\t\t\treturn inputView;\n *\t\t} );\n *\n *\t\tlabeledInputView.label = 'User name';\n *\t\tlabeledInputView.infoText = 'Full name like for instance, John Doe.';\n *\t\tlabeledInputView.render();\n *\n *\t\tdocument.body.append( labeledInputView.element );\n *\n * See {@link module:ui/labeledfield/utils} to discover ready–to–use labeled input helpers for common\n * UI components.\n *\n * @extends module:ui/view~View\n */\nexport default class LabeledFieldView extends View {\n\tpublic readonly fieldView: FocusableView;\n\tpublic readonly labelView: LabelView;\n\tpublic readonly statusView: View;\n\tpublic readonly fieldWrapperChildren: ViewCollection;\n\n\tdeclare public label: string | undefined;\n\tdeclare public isEnabled: boolean;\n\tdeclare public isEmpty: boolean;\n\tdeclare public isFocused: boolean;\n\tdeclare public errorText: string | null;\n\tdeclare public infoText: string | null;\n\tdeclare public class: string | undefined;\n\tdeclare public placeholder: string | undefined;\n\tdeclare public _statusText: string | null;\n\n\t/**\n\t * Creates an instance of the labeled field view class using a provided creator function\n\t * that provides the view to be labeled.\n\t *\n\t * @param {module:utils/locale~Locale} locale The locale instance.\n\t * @param {Function} viewCreator A function that returns a {@link module:ui/view~View}\n\t * that will be labeled. The following arguments are passed to the creator function:\n\t *\n\t * * an instance of the `LabeledFieldView` to allow binding observable properties,\n\t * * an UID string that connects the {@link #labelView label} and the labeled field view in DOM,\n\t * * an UID string that connects the {@link #statusView status} and the labeled field view in DOM.\n\t */\n\tconstructor(\n\t\tlocale: Locale | undefined,\n\t\tviewCreator: ( labeledFieldView: LabeledFieldView, viewUid: string, statusUid: string ) => FocusableView\n\t) {\n\t\tsuper( locale );\n\n\t\tconst viewUid = `ck-labeled-field-view-${ uid() }`;\n\t\tconst statusUid = `ck-labeled-field-view-status-${ uid() }`;\n\n\t\t/**\n\t\t * The field view that gets labeled.\n\t\t *\n\t\t * @member {module:ui/view~View} #fieldView\n\t\t */\n\t\tthis.fieldView = viewCreator( this, viewUid, statusUid );\n\n\t\t/**\n\t\t * The text of the label.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #label\n\t\t */\n\t\tthis.set( 'label', undefined );\n\n\t\t/**\n\t\t * Controls whether the component is in read-only mode.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isEnabled\n\t\t */\n\t\tthis.set( 'isEnabled', true );\n\n\t\t/**\n\t\t * An observable flag set to `true` when {@link #fieldView} is empty (`false` otherwise).\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isEmpty\n\t\t * @default true\n\t\t */\n\t\tthis.set( 'isEmpty', true );\n\n\t\t/**\n\t\t * An observable flag set to `true` when {@link #fieldView} is currently focused by\n\t\t * the user (`false` otherwise).\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isFocused\n\t\t * @default false\n\t\t */\n\t\tthis.set( 'isFocused', false );\n\n\t\t/**\n\t\t * The validation error text. When set, it will be displayed\n\t\t * next to the {@link #fieldView} as a typical validation error message.\n\t\t * Set it to `null` to hide the message.\n\t\t *\n\t\t * **Note:** Setting this property to anything but `null` will automatically\n\t\t * make the `hasError` of the {@link #fieldView} `true`.\n\t\t *\n\t\t * @observable\n\t\t * @member {String|null} #errorText\n\t\t */\n\t\tthis.set( 'errorText', null );\n\n\t\t/**\n\t\t * The additional information text displayed next to the {@link #fieldView} which can\n\t\t * be used to inform the user about its purpose, provide help or hints.\n\t\t *\n\t\t * Set it to `null` to hide the message.\n\t\t *\n\t\t * **Note:** This text will be displayed in the same place as {@link #errorText} but the\n\t\t * latter always takes precedence: if the {@link #errorText} is set, it replaces\n\t\t * {@link #infoText}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String|null} #infoText\n\t\t * @default null\n\t\t */\n\t\tthis.set( 'infoText', null );\n\n\t\t/**\n\t\t * (Optional) The additional CSS class set on the dropdown {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #class\n\t\t */\n\t\tthis.set( 'class', undefined );\n\n\t\t/**\n\t\t * The content of the `placeholder` attribute of the {@link #fieldView}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #placeholder\n\t\t */\n\t\tthis.set( 'placeholder', undefined );\n\n\t\t/**\n\t\t * The label view instance that describes the entire view.\n\t\t *\n\t\t * @member {module:ui/label/labelview~LabelView} #labelView\n\t\t */\n\t\tthis.labelView = this._createLabelView( viewUid );\n\n\t\t/**\n\t\t * The status view for the {@link #fieldView}. It displays {@link #errorText} and\n\t\t * {@link #infoText}.\n\t\t *\n\t\t * @member {module:ui/view~View} #statusView\n\t\t */\n\t\tthis.statusView = this._createStatusView( statusUid );\n\n\t\t/**\n\t\t * A collection of children of the internal wrapper element. Allows inserting additional DOM elements (views) next to\n\t\t * the {@link #fieldView} for easy styling (e.g. positioning).\n\t\t *\n\t\t * By default, the collection contains {@link #fieldView} and {@link #labelView}.\n\t\t *\n\t\t * @member {module:ui/viewcollection~ViewCollection} #fieldWrapperChildren\n\t\t */\n\t\tthis.fieldWrapperChildren = this.createCollection( [ this.fieldView, this.labelView ] );\n\n\t\t/**\n\t\t * The combined status text made of {@link #errorText} and {@link #infoText}.\n\t\t * Note that when present, {@link #errorText} always takes precedence in the\n\t\t * status.\n\t\t *\n\t\t * @see #errorText\n\t\t * @see #infoText\n\t\t * @see #statusView\n\t\t * @private\n\t\t * @observable\n\t\t * @member {String|null} #_statusText\n\t\t */\n\t\tthis.bind( '_statusText' ).to(\n\t\t\tthis, 'errorText',\n\t\t\tthis, 'infoText',\n\t\t\t( errorText, infoText ) => errorText || infoText\n\t\t);\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-labeled-field-view',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isEnabled', 'ck-disabled', value => !value ),\n\t\t\t\t\tbind.if( 'isEmpty', 'ck-labeled-field-view_empty' ),\n\t\t\t\t\tbind.if( 'isFocused', 'ck-labeled-field-view_focused' ),\n\t\t\t\t\tbind.if( 'placeholder', 'ck-labeled-field-view_placeholder' ),\n\t\t\t\t\tbind.if( 'errorText', 'ck-error' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-labeled-field-view__input-wrapper'\n\t\t\t\t\t\t]\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.fieldWrapperChildren\n\t\t\t\t},\n\t\t\t\tthis.statusView\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * Creates label view class instance and bind with view.\n\t *\n\t * @private\n\t * @param {String} id Unique id to set as labelView#for attribute.\n\t * @returns {module:ui/label/labelview~LabelView}\n\t */\n\tprivate _createLabelView( id: string ): LabelView {\n\t\tconst labelView = new LabelView( this.locale );\n\n\t\tlabelView.for = id;\n\t\tlabelView.bind( 'text' ).to( this, 'label' );\n\n\t\treturn labelView;\n\t}\n\n\t/**\n\t * Creates the status view instance. It displays {@link #errorText} and {@link #infoText}\n\t * next to the {@link #fieldView}. See {@link #_statusText}.\n\t *\n\t * @private\n\t * @param {String} statusUid Unique id of the status, shared with the {@link #fieldView view's}\n\t * `aria-describedby` attribute.\n\t * @returns {module:ui/view~View}\n\t */\n\tprivate _createStatusView( statusUid: string ): View {\n\t\tconst statusView = new View( this.locale );\n\t\tconst bind = this.bindTemplate;\n\n\t\tstatusView.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-labeled-field-view__status',\n\t\t\t\t\tbind.if( 'errorText', 'ck-labeled-field-view__status_error' ),\n\t\t\t\t\tbind.if( '_statusText', 'ck-hidden', value => !value )\n\t\t\t\t],\n\t\t\t\tid: statusUid,\n\t\t\t\trole: bind.if( 'errorText', 'alert' )\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( '_statusText' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn statusView;\n\t}\n\n\t/**\n\t * Focuses the {@link #fieldView}.\n\t */\n\tpublic focus(): void {\n\t\tthis.fieldView.focus();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/labeledfield/utils\n */\n\nimport InputTextView from '../inputtext/inputtextview';\nimport InputNumberView from '../inputnumber/inputnumberview';\nimport { createDropdown } from '../dropdown/utils';\n\nimport type LabeledFieldView from './labeledfieldview';\nimport type DropdownView from '../dropdown/dropdownview';\nimport type { InputViewInputEvent } from '../input/inputview';\n\n/**\n * A helper for creating labeled inputs.\n *\n * It creates an instance of a {@link module:ui/inputtext/inputtextview~InputTextView input text} that is\n * logically related to a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled view} in DOM.\n *\n * The helper does the following:\n *\n * * It sets input's `id` and `ariaDescribedById` attributes.\n * * It binds input's `isReadOnly` to the labeled view.\n * * It binds input's `hasError` to the labeled view.\n * * It enables a logic that cleans up the error when user starts typing in the input.\n *\n * Usage:\n *\n *\t\tconst labeledInputView = new LabeledFieldView( locale, createLabeledInputText );\n *\t\tconsole.log( labeledInputView.fieldView ); // A text input instance.\n *\n * @param {module:ui/labeledfield/labeledfieldview~LabeledFieldView} labeledFieldView The instance of the labeled field view.\n * @param {String} viewUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#labelView labeled view's label} and the input.\n * @param {String} statusUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#statusView labeled view's status} and the input.\n * @returns {module:ui/inputtext/inputtextview~InputTextView} The input text view instance.\n */\nexport function createLabeledInputText(\n\tlabeledFieldView: LabeledFieldView,\n\tviewUid: string,\n\tstatusUid: string\n): InputTextView {\n\tconst inputView = new InputTextView( labeledFieldView.locale );\n\n\tinputView.set( {\n\t\tid: viewUid,\n\t\tariaDescribedById: statusUid\n\t} );\n\n\tinputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n\tinputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n\n\tinputView.on<InputViewInputEvent>( 'input', () => {\n\t\t// UX: Make the error text disappear and disable the error indicator as the user\n\t\t// starts fixing the errors.\n\t\tlabeledFieldView.errorText = null;\n\t} );\n\n\tlabeledFieldView.bind( 'isEmpty', 'isFocused', 'placeholder' ).to( inputView );\n\n\treturn inputView;\n}\n\n/**\n * A helper for creating labeled number inputs.\n *\n * It creates an instance of a {@link module:ui/inputnumber/inputnumberview~InputNumberView input number} that is\n * logically related to a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled view} in DOM.\n *\n * The helper does the following:\n *\n * * It sets input's `id` and `ariaDescribedById` attributes.\n * * It binds input's `isReadOnly` to the labeled view.\n * * It binds input's `hasError` to the labeled view.\n * * It enables a logic that cleans up the error when user starts typing in the input.\n *\n * Usage:\n *\n *\t\tconst labeledInputView = new LabeledFieldView( locale, createLabeledInputNumber );\n *\t\tconsole.log( labeledInputView.fieldView ); // A number input instance.\n *\n * @param {module:ui/labeledfield/labeledfieldview~LabeledFieldView} labeledFieldView The instance of the labeled field view.\n * @param {String} viewUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#labelView labeled view's label} and the input.\n * @param {String} statusUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#statusView labeled view's status} and the input.\n * @returns {module:ui/inputnumber/inputnumberview~InputNumberView} The input number view instance.\n */\nexport function createLabeledInputNumber(\n\tlabeledFieldView: LabeledFieldView,\n\tviewUid: string,\n\tstatusUid: string\n): InputNumberView {\n\tconst inputView = new InputNumberView( labeledFieldView.locale );\n\n\tinputView.set( {\n\t\tid: viewUid,\n\t\tariaDescribedById: statusUid,\n\t\tinputMode: 'numeric'\n\t} );\n\n\tinputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n\tinputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n\n\tinputView.on<InputViewInputEvent>( 'input', () => {\n\t\t// UX: Make the error text disappear and disable the error indicator as the user\n\t\t// starts fixing the errors.\n\t\tlabeledFieldView.errorText = null;\n\t} );\n\n\tlabeledFieldView.bind( 'isEmpty', 'isFocused', 'placeholder' ).to( inputView );\n\n\treturn inputView;\n}\n\n/**\n * A helper for creating labeled dropdowns.\n *\n * It creates an instance of a {@link module:ui/dropdown/dropdownview~DropdownView dropdown} that is\n * logically related to a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled field view}.\n *\n * The helper does the following:\n *\n * * It sets dropdown's `id` and `ariaDescribedById` attributes.\n * * It binds input's `isEnabled` to the labeled view.\n *\n * Usage:\n *\n *\t\tconst labeledInputView = new LabeledFieldView( locale, createLabeledDropdown );\n *\t\tconsole.log( labeledInputView.fieldView ); // A dropdown instance.\n *\n * @param {module:ui/labeledfield/labeledfieldview~LabeledFieldView} labeledFieldView The instance of the labeled field view.\n * @param {String} viewUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#labelView labeled view label} and the dropdown.\n * @param {String} statusUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#statusView labeled view status} and the dropdown.\n * @returns {module:ui/dropdown/dropdownview~DropdownView} The dropdown view instance.\n */\nexport function createLabeledDropdown(\n\tlabeledFieldView: LabeledFieldView,\n\tviewUid: string,\n\tstatusUid: string\n): DropdownView {\n\tconst dropdownView = createDropdown( labeledFieldView.locale );\n\n\tdropdownView.set( {\n\t\tid: viewUid,\n\t\tariaDescribedById: statusUid\n\t} );\n\n\tdropdownView.bind( 'isEnabled' ).to( labeledFieldView );\n\n\treturn dropdownView;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/notification/notification\n */\n\n/* globals window */\n\nimport { ContextPlugin } from '@ckeditor/ckeditor5-core';\n\n/**\n * The Notification plugin.\n *\n * This plugin sends a few types of notifications: `success`, `info` and `warning`. The notifications need to be\n * handled and displayed by a plugin responsible for showing the UI of the notifications. Using this plugin for dispatching\n * notifications makes it possible to switch the notifications UI.\n *\n * Note that every unhandled and not stopped `warning` notification will be displayed as a system alert.\n * See {@link module:ui/notification/notification~Notification#showWarning}.\n *\n * @extends module:core/contextplugin~ContextPlugin\n */\nexport default class Notification extends ContextPlugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Notification' {\n\t\treturn 'Notification';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\t// Each unhandled and not stopped `show:warning` event is displayed as a system alert.\n\t\tthis.on<NotificationShowEvent>( 'show:warning', ( evt, data ) => {\n\t\t\twindow.alert( data.message ); // eslint-disable-line no-alert\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Shows a success notification.\n\t *\n\t * By default, it fires the {@link #event:show:success `show:success` event} with the given `data`. The event namespace can be extended\n\t * using the `data.namespace` option. For example:\n\t *\n\t * \t\tshowSuccess( 'Image is uploaded.', {\n\t * \t\t\tnamespace: 'upload:image'\n\t * \t\t} );\n\t *\n\t * will fire the `show:success:upload:image` event.\n\t *\n\t * You can provide the title of the notification:\n\t *\n\t *\t\tshowSuccess( 'Image is uploaded.', {\n\t *\t\t\ttitle: 'Image upload success'\n\t *\t\t} );\n\t *\n\t * @param {String} message The content of the notification.\n\t * @param {Object} [data={}] Additional data.\n\t * @param {String} [data.namespace] Additional event namespace.\n\t * @param {String} [data.title] The title of the notification.\n\t */\n\tpublic showSuccess(\n\t\tmessage: string,\n\t\tdata: { namespace?: string; title?: string } = {}\n\t): void {\n\t\tthis._showNotification( {\n\t\t\tmessage,\n\t\t\ttype: 'success',\n\t\t\tnamespace: data.namespace,\n\t\t\ttitle: data.title\n\t\t} );\n\t}\n\n\t/**\n\t * Shows an information notification.\n\t *\n\t * By default, it fires the {@link #event:show:info `show:info` event} with the given `data`. The event namespace can be extended\n\t * using the `data.namespace` option. For example:\n\t *\n\t * \t\tshowInfo( 'Editor is offline.', {\n\t * \t\t\tnamespace: 'editor:status'\n\t * \t\t} );\n\t *\n\t * will fire the `show:info:editor:status` event.\n\t *\n\t * You can provide the title of the notification:\n\t *\n\t *\t\tshowInfo( 'Editor is offline.', {\n\t *\t\t\ttitle: 'Network information'\n\t *\t\t} );\n\t *\n\t * @param {String} message The content of the notification.\n\t * @param {Object} [data={}] Additional data.\n\t * @param {String} [data.namespace] Additional event namespace.\n\t * @param {String} [data.title] The title of the notification.\n\t */\n\tpublic showInfo(\n\t\tmessage: string,\n\t\tdata: { namespace?: string; title?: string } = {}\n\t): void {\n\t\tthis._showNotification( {\n\t\t\tmessage,\n\t\t\ttype: 'info',\n\t\t\tnamespace: data.namespace,\n\t\t\ttitle: data.title\n\t\t} );\n\t}\n\n\t/**\n\t * Shows a warning notification.\n\t *\n\t * By default, it fires the {@link #event:show:warning `show:warning` event}\n\t * with the given `data`. The event namespace can be extended using the `data.namespace` option. For example:\n\t *\n\t * \t\tshowWarning( 'Image upload error.', {\n\t * \t\t\tnamespace: 'upload:image'\n\t * \t\t} );\n\t *\n\t * will fire the `show:warning:upload:image` event.\n\t *\n\t * You can provide the title of the notification:\n\t *\n\t *\t\tshowWarning( 'Image upload error.', {\n\t *\t\t\ttitle: 'Upload failed'\n\t *\t\t} );\n\t *\n\t * Note that each unhandled and not stopped `warning` notification will be displayed as a system alert.\n\t * The plugin responsible for displaying warnings should `stop()` the event to prevent displaying it as an alert:\n\t *\n\t * \t\tnotifications.on( 'show:warning', ( evt, data ) => {\n\t * \t\t\t// Do something with the data.\n\t *\n\t * \t\t\t// Stop this event to prevent displaying it as an alert.\n\t * \t\t\tevt.stop();\n\t * \t\t} );\n\t *\n\t * You can attach many listeners to the same event and `stop()` this event in a listener with a low priority:\n\t *\n\t * \t\tnotifications.on( 'show:warning', ( evt, data ) => {\n\t * \t\t\t// Show the warning in the UI, but do not stop it.\n\t * \t\t} );\n\t *\n\t * \t\tnotifications.on( 'show:warning', ( evt, data ) => {\n\t * \t\t\t// Log the warning to some error tracker.\n\t *\n\t * \t\t\t// Stop this event to prevent displaying it as an alert.\n\t * \t\t\tevt.stop();\n\t * \t\t}, { priority: 'low' } );\n\t *\n\t * @param {String} message The content of the notification.\n\t * @param {Object} [data={}] Additional data.\n\t * @param {String} [data.namespace] Additional event namespace.\n\t * @param {String} [data.title] The title of the notification.\n\t */\n\tpublic showWarning(\n\t\tmessage: string,\n\t\tdata: { namespace?: string; title?: string } = {}\n\t): void {\n\t\tthis._showNotification( {\n\t\t\tmessage,\n\t\t\ttype: 'warning',\n\t\t\tnamespace: data.namespace,\n\t\t\ttitle: data.title\n\t\t} );\n\t}\n\n\t/**\n\t * Fires the `show` event with the specified type, namespace and message.\n\t *\n\t * @private\n\t * @param {Object} data The message data.\n\t * @param {String} data.message The content of the notification.\n\t * @param {'success'|'info'|'warning'} data.type The type of the message.\n\t * @param {String} [data.namespace] Additional event namespace.\n\t * @param {String} [data.title=''] The title of the notification.\n\t */\n\tprivate _showNotification( data: {\n\t\tmessage: string;\n\t\ttype: NotificationEventType;\n\t\tnamespace?: string;\n\t\ttitle?: string;\n\t} ): void {\n\t\tconst event = data.namespace ?\n\t\t\t`show:${ data.type }:${ data.namespace }` as const :\n\t\t\t`show:${ data.type }` as const;\n\n\t\tthis.fire<NotificationShowEvent>( event, {\n\t\t\tmessage: data.message,\n\t\t\ttype: data.type,\n\t\t\ttitle: data.title || ''\n\t\t} );\n\t}\n\n\t/**\n\t * Fired when one of the `showSuccess()`, `showInfo()`, `showWarning()` methods is called.\n\t *\n\t * @event show\n\t * @param {Object} data The notification data.\n\t * @param {String} data.message The content of the notification.\n\t * @param {String} data.title The title of the notification.\n\t * @param {'success'|'info'|'warning'} data.type The type of the notification.\n\t */\n\n\t/**\n\t * Fired when the `showSuccess()` method is called.\n\t *\n\t * @event show:success\n\t * @param {Object} data The notification data.\n\t * @param {String} data.message The content of the notification.\n\t * @param {String} data.title The title of the notification.\n\t * @param {'success'} data.type The type of the notification.\n\t */\n\n\t/**\n\t * Fired when the `showInfo()` method is called.\n\t *\n\t * @event show:info\n\t * @param {Object} data The notification data.\n\t * @param {String} data.message The content of the notification.\n\t * @param {String} data.title The title of the notification.\n\t * @param {'info'} data.type The type of the notification.\n\t */\n\n\t/**\n\t * Fired when the `showWarning()` method is called.\n\t *\n\t * When this event is not handled or stopped by `event.stop()`, the `data.message` of this event will\n\t * be automatically displayed as a system alert.\n\t *\n\t * @event show:warning\n\t * @param {Object} data The notification data.\n\t * @param {String} data.message The content of the notification.\n\t * @param {String} data.title The title of the notification.\n\t * @param {'warning'} data.type The type of the notification.\n\t */\n}\n\nexport type NotificationEventType = 'success' | 'info' | 'warning';\n\nexport type NotificationShowEvent = {\n\tname: 'show' | `show:${ NotificationEventType }` | `show:${ NotificationEventType }:${ string }`;\n\targs: [ data: {\n\t\tmessage: string;\n\t\ttitle: string;\n\t\ttype: NotificationEventType;\n\t} ];\n};\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ Notification.pluginName ]: Notification;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/model\n */\n\nimport { ObservableMixin } from '@ckeditor/ckeditor5-utils';\nimport { extend } from 'lodash-es';\n\n/**\n * The base MVC model class.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class Model extends ObservableMixin() {\n\t[ x: string ]: unknown;\n\n\t/**\n\t * Creates a new Model instance.\n\t *\n\t * @param {Object} [attributes] The model state attributes to be defined during the instance creation.\n\t * @param {Object} [properties] The (out of state) properties to be appended to the instance during creation.\n\t */\n\tconstructor( attributes?: Record<string, unknown>, properties?: Record<string, unknown> ) {\n\t\tsuper();\n\n\t\t// Extend this instance with the additional (out of state) properties.\n\t\tif ( properties ) {\n\t\t\textend( this, properties );\n\t\t}\n\n\t\t// Initialize the attributes.\n\t\tif ( attributes ) {\n\t\t\tthis.set( attributes );\n\t\t}\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M11.463 5.187a.888.888 0 1 1 1.254 1.255L9.16 10l3.557 3.557a.888.888 0 1 1-1.254 1.255L7.26 10.61a.888.888 0 0 1 .16-1.382l4.043-4.042z\\\"/></svg>\";","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./balloonrotator.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./fakepanel.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/panel/balloon/contextualballoon\n */\n\nimport { Plugin, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport BalloonPanelView from './balloonpanelview';\nimport View from '../../view';\nimport ButtonView from '../../button/buttonview';\n\nimport {\n\tCKEditorError,\n\tFocusTracker,\n\tRect,\n\ttoUnit,\n\ttype Locale,\n\ttype ObservableChangeEvent,\n\ttype PositionOptions\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { ButtonExecuteEvent } from '../../button/button';\nimport type ViewCollection from '../../viewcollection';\n\nimport prevIcon from '../../../theme/icons/previous-arrow.svg';\nimport nextIcon from '../../../theme/icons/next-arrow.svg';\n\nimport '../../../theme/components/panel/balloonrotator.css';\nimport '../../../theme/components/panel/fakepanel.css';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * Provides the common contextual balloon for the editor.\n *\n * The role of this plugin is to unify the contextual balloons logic, simplify views management and help\n * avoid the unnecessary complexity of handling multiple {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView}\n * instances in the editor.\n *\n * This plugin allows for creating single or multiple panel stacks.\n *\n * Each stack may have multiple views, with the one on the top being visible. When the visible view is removed from the stack,\n * the previous view becomes visible.\n *\n * It might be useful to implement nested navigation in a balloon. For instance, a toolbar view may contain a link button.\n * When you click it, a link view (which lets you set the URL) is created and put on top of the toolbar view, so the link panel\n * is displayed. When you finish editing the link and close (remove) the link view, the toolbar view is visible again.\n *\n * However, there are cases when there are multiple independent balloons to be displayed, for instance, if the selection\n * is inside two inline comments at the same time. For such cases, you can create two independent panel stacks.\n * The contextual balloon plugin will create a navigation bar to let the users switch between these panel stacks using the \"Next\"\n * and \"Previous\" buttons.\n *\n * If there are no views in the current stack, the balloon panel will try to switch to the next stack. If there are no\n * panels in any stack, the balloon panel will be hidden.\n *\n * **Note**: To force the balloon panel to show only one view, even if there are other stacks, use the `singleViewMode=true` option\n * when {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon#add adding} a view to a panel.\n *\n * From the implementation point of view, the contextual ballon plugin is reusing a single\n * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView} instance to display multiple contextual balloon\n * panels in the editor. It also creates a special {@link module:ui/panel/balloon/contextualballoon~RotatorView rotator view},\n * used to manage multiple panel stacks. Rotator view is a child of the balloon panel view and the parent of the specific\n * view you want to display. If there is more than one panel stack to be displayed, the rotator view will add a\n * navigation bar. If there is only one stack, the rotator view is transparent (it does not add any UI elements).\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ContextualBalloon extends Plugin {\n\tpublic readonly view: BalloonPanelView;\n\tpublic positionLimiter: PositionOptions[ 'limiter' ];\n\tpublic visibleStack?: string;\n\n\tdeclare public visibleView: View | null;\n\tdeclare public _numberOfStacks: number;\n\tdeclare public _singleViewMode: boolean;\n\n\tprivate _viewToStack: Map<View, Stack>;\n\tprivate _idToStack: Map<string, Stack>;\n\tprivate readonly _rotatorView: RotatorView;\n\tprivate readonly _fakePanelsView: FakePanelsView;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ContextualBalloon' {\n\t\treturn 'ContextualBalloon';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The {@link module:utils/dom/position~Options#limiter position limiter}\n\t\t * for the {@link #view balloon}, used when no `limiter` has been passed into {@link #add}\n\t\t * or {@link #updatePosition}.\n\t\t *\n\t\t * By default, a function that obtains the farthest DOM\n\t\t * {@link module:engine/view/rooteditableelement~RootEditableElement}\n\t\t * of the {@link module:engine/view/document~Document#selection}.\n\t\t *\n\t\t * @member {module:utils/dom/position~Options#limiter} #positionLimiter\n\t\t */\n\t\tthis.positionLimiter = () => {\n\t\t\tconst view = this.editor.editing.view;\n\t\t\tconst viewDocument = view.document;\n\t\t\tconst editableElement = viewDocument.selection.editableElement;\n\n\t\t\tif ( editableElement ) {\n\t\t\t\treturn view.domConverter.mapViewToDom( editableElement.root ) as HTMLElement;\n\t\t\t}\n\n\t\t\treturn null;\n\t\t};\n\n\t\t/**\n\t\t * The currently visible view or `null` when there are no views in any stack.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {module:ui/view~View|null} #visibleView\n\t\t */\n\t\tthis.set( 'visibleView', null );\n\n\t\t/**\n\t\t * The common balloon panel view.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/panel/balloon/balloonpanelview~BalloonPanelView} #view\n\t\t */\n\t\tthis.view = new BalloonPanelView( editor.locale );\n\t\teditor.ui.view.body.add( this.view );\n\t\teditor.ui.focusTracker.add( this.view.element! );\n\n\t\t/**\n\t\t * The map of views and their stacks.\n\t\t *\n\t\t * @private\n\t\t * @type {Map.<module:ui/view~View,Set>}\n\t\t */\n\t\tthis._viewToStack = new Map();\n\n\t\t/**\n\t\t * The map of IDs and stacks.\n\t\t *\n\t\t * @private\n\t\t * @type {Map.<String,Set>}\n\t\t */\n\t\tthis._idToStack = new Map();\n\n\t\t/**\n\t\t * A total number of all stacks in the balloon.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number} #_numberOfStacks\n\t\t */\n\t\tthis.set( '_numberOfStacks', 0 );\n\n\t\t/**\n\t\t * A flag that controls the single view mode.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #_singleViewMode\n\t\t */\n\t\tthis.set( '_singleViewMode', false );\n\n\t\t/**\n\t\t * Rotator view embedded in the contextual balloon.\n\t\t * Displays the currently visible view in the balloon and provides navigation for switching stacks.\n\t\t *\n\t\t * @private\n\t\t * @type {module:ui/panel/balloon/contextualballoon~RotatorView}\n\t\t */\n\t\tthis._rotatorView = this._createRotatorView();\n\n\t\t/**\n\t\t * Displays fake panels under the balloon panel view when multiple stacks are added to the balloon.\n\t\t *\n\t\t * @private\n\t\t * @type {module:ui/view~View}\n\t\t */\n\t\tthis._fakePanelsView = this._createFakePanelsView();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.view.destroy();\n\t\tthis._rotatorView.destroy();\n\t\tthis._fakePanelsView.destroy();\n\t}\n\n\t/**\n\t * Returns `true` when the given view is in one of the stacks. Otherwise returns `false`.\n\t *\n\t * @param {module:ui/view~View} view\n\t * @returns {Boolean}\n\t */\n\tpublic hasView( view: View ): boolean {\n\t\treturn Array.from( this._viewToStack.keys() ).includes( view );\n\t}\n\n\t/**\n\t * Adds a new view to the stack and makes it visible if the current stack is visible\n\t * or it is the first view in the balloon.\n\t *\n\t * @param {Object} data The configuration of the view.\n\t * @param {String} [data.stackId='main'] The ID of the stack that the view is added to.\n\t * @param {module:ui/view~View} [data.view] The content of the balloon.\n\t * @param {module:utils/dom/position~Options} [data.position] Positioning options.\n\t * @param {String} [data.balloonClassName] An additional CSS class added to the {@link #view balloon} when visible.\n\t * @param {Boolean} [data.withArrow=true] Whether the {@link #view balloon} should be rendered with an arrow.\n\t * @param {Boolean} [data.singleViewMode=false] Whether the view should be the only visible view even if other stacks were added.\n\t */\n\tpublic add( data: ViewConfiguration ): void {\n\t\tif ( this.hasView( data.view ) ) {\n\t\t\t/**\n\t\t\t * Trying to add configuration of the same view more than once.\n\t\t\t *\n\t\t\t * @error contextualballoon-add-view-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'contextualballoon-add-view-exist',\n\t\t\t\t[ this, data ]\n\t\t\t);\n\t\t}\n\n\t\tconst stackId = data.stackId || 'main';\n\n\t\t// If new stack is added, creates it and show view from this stack.\n\t\tif ( !this._idToStack.has( stackId ) ) {\n\t\t\tthis._idToStack.set( stackId, new Map( [ [ data.view, data ] ] ) );\n\t\t\tthis._viewToStack.set( data.view, this._idToStack.get( stackId )! );\n\t\t\tthis._numberOfStacks = this._idToStack.size;\n\n\t\t\tif ( !this._visibleStack || data.singleViewMode ) {\n\t\t\t\tthis.showStack( stackId );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst stack = this._idToStack.get( stackId )!;\n\n\t\tif ( data.singleViewMode ) {\n\t\t\tthis.showStack( stackId );\n\t\t}\n\n\t\t// Add new view to the stack.\n\t\tstack.set( data.view, data );\n\t\tthis._viewToStack.set( data.view, stack );\n\n\t\t// And display it if is added to the currently visible stack.\n\t\tif ( stack === this._visibleStack ) {\n\t\t\tthis._showView( data );\n\t\t}\n\t}\n\n\t/**\n\t * Removes the given view from the stack. If the removed view was visible,\n\t * the view preceding it in the stack will become visible instead.\n\t * When there is no view in the stack, the next stack will be displayed.\n\t * When there are no more stacks, the balloon will hide.\n\t *\n\t * @param {module:ui/view~View} view A view to be removed from the balloon.\n\t */\n\tpublic remove( view: View ): void {\n\t\tif ( !this.hasView( view ) ) {\n\t\t\t/**\n\t\t\t * Trying to remove the configuration of the view not defined in the stack.\n\t\t\t *\n\t\t\t * @error contextualballoon-remove-view-not-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'contextualballoon-remove-view-not-exist',\n\t\t\t\t[ this, view ]\n\t\t\t);\n\t\t}\n\n\t\tconst stack = this._viewToStack.get( view )!;\n\n\t\tif ( this._singleViewMode && this.visibleView === view ) {\n\t\t\tthis._singleViewMode = false;\n\t\t}\n\n\t\t// When visible view will be removed we need to show a preceding view or next stack\n\t\t// if a view is the only view in the stack.\n\t\tif ( this.visibleView === view ) {\n\t\t\tif ( stack.size === 1 ) {\n\t\t\t\tif ( this._idToStack.size > 1 ) {\n\t\t\t\t\tthis._showNextStack();\n\t\t\t\t} else {\n\t\t\t\t\tthis.view.hide();\n\t\t\t\t\tthis.visibleView = null;\n\t\t\t\t\tthis._rotatorView.hideView();\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tthis._showView( Array.from( stack.values() )[ stack.size - 2 ] );\n\t\t\t}\n\t\t}\n\n\t\tif ( stack.size === 1 ) {\n\t\t\tthis._idToStack.delete( this._getStackId( stack ) );\n\t\t\tthis._numberOfStacks = this._idToStack.size;\n\t\t} else {\n\t\t\tstack.delete( view );\n\t\t}\n\n\t\tthis._viewToStack.delete( view );\n\t}\n\n\t/**\n\t * Updates the position of the balloon using the position data of the first visible view in the stack.\n\t * When new position data is given, the position data of the currently visible view will be updated.\n\t *\n\t * @param {module:utils/dom/position~Options} [position] position options.\n\t */\n\tpublic updatePosition( position?: Partial<PositionOptions> ): void {\n\t\tif ( position ) {\n\t\t\tthis._visibleStack.get( this.visibleView! )!.position = position;\n\t\t}\n\n\t\tthis.view.pin( this._getBalloonPosition()! );\n\t\tthis._fakePanelsView.updatePosition();\n\t}\n\n\t/**\n\t * Shows the last view from the stack of a given ID.\n\t *\n\t * @param {String} id\n\t */\n\tpublic showStack( id: string ): void {\n\t\tthis.visibleStack = id;\n\t\tconst stack = this._idToStack.get( id );\n\n\t\tif ( !stack ) {\n\t\t\t/**\n\t\t\t * Trying to show a stack that does not exist.\n\t\t\t *\n\t\t\t * @error contextualballoon-showstack-stack-not-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'contextualballoon-showstack-stack-not-exist',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tif ( this._visibleStack === stack ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._showView( Array.from( stack.values() ).pop()! );\n\t}\n\n\t/**\n\t * Returns the stack of the currently visible view.\n\t *\n\t * @private\n\t * @type {Set}\n\t */\n\tprivate get _visibleStack() {\n\t\treturn this._viewToStack.get( this.visibleView! )!;\n\t}\n\n\t/**\n\t * Returns the ID of the given stack.\n\t *\n\t * @private\n\t * @param {Set} stack\n\t * @returns {String}\n\t */\n\tprivate _getStackId( stack: Stack ) {\n\t\tconst entry = Array.from( this._idToStack.entries() ).find( entry => entry[ 1 ] === stack )!;\n\n\t\treturn entry[ 0 ];\n\t}\n\n\t/**\n\t * Shows the last view from the next stack.\n\t *\n\t * @private\n\t */\n\tprivate _showNextStack() {\n\t\tconst stacks = Array.from( this._idToStack.values() );\n\n\t\tlet nextIndex = stacks.indexOf( this._visibleStack ) + 1;\n\n\t\tif ( !stacks[ nextIndex ] ) {\n\t\t\tnextIndex = 0;\n\t\t}\n\n\t\tthis.showStack( this._getStackId( stacks[ nextIndex ] ) );\n\t}\n\n\t/**\n\t * Shows the last view from the previous stack.\n\t *\n\t * @private\n\t */\n\tprivate _showPrevStack() {\n\t\tconst stacks = Array.from( this._idToStack.values() );\n\n\t\tlet nextIndex = stacks.indexOf( this._visibleStack ) - 1;\n\n\t\tif ( !stacks[ nextIndex ] ) {\n\t\t\tnextIndex = stacks.length - 1;\n\t\t}\n\n\t\tthis.showStack( this._getStackId( stacks[ nextIndex ] ) );\n\t}\n\n\t/**\n\t * Creates a rotator view.\n\t *\n\t * @private\n\t * @returns {module:ui/panel/balloon/contextualballoon~RotatorView}\n\t */\n\tprivate _createRotatorView() {\n\t\tconst view = new RotatorView( this.editor.locale );\n\t\tconst t = this.editor.locale.t;\n\n\t\tthis.view.content.add( view );\n\n\t\t// Hide navigation when there is only a one stack & not in single view mode.\n\t\tview.bind( 'isNavigationVisible' ).to( this, '_numberOfStacks', this, '_singleViewMode', ( value, isSingleViewMode ) => {\n\t\t\treturn !isSingleViewMode && value > 1;\n\t\t} );\n\n\t\t// Update balloon position after toggling navigation.\n\t\tview.on<ObservableChangeEvent>( 'change:isNavigationVisible', () => ( this.updatePosition() ), { priority: 'low' } );\n\n\t\t// Update stacks counter value.\n\t\tview.bind( 'counter' ).to( this, 'visibleView', this, '_numberOfStacks', ( visibleView, numberOfStacks ) => {\n\t\t\tif ( numberOfStacks < 2 ) {\n\t\t\t\treturn '';\n\t\t\t}\n\n\t\t\tconst current = Array.from( this._idToStack.values() ).indexOf( this._visibleStack ) + 1;\n\n\t\t\treturn t( '%0 of %1', [ current, numberOfStacks ] );\n\t\t} );\n\n\t\tview.buttonNextView.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\t// When current view has a focus then move focus to the editable before removing it,\n\t\t\t// otherwise editor will lost focus.\n\t\t\tif ( view.focusTracker.isFocused ) {\n\t\t\t\tthis.editor.editing.view.focus();\n\t\t\t}\n\n\t\t\tthis._showNextStack();\n\t\t} );\n\n\t\tview.buttonPrevView.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\t// When current view has a focus then move focus to the editable before removing it,\n\t\t\t// otherwise editor will lost focus.\n\t\t\tif ( view.focusTracker.isFocused ) {\n\t\t\t\tthis.editor.editing.view.focus();\n\t\t\t}\n\n\t\t\tthis._showPrevStack();\n\t\t} );\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * @private\n\t * @returns {module:ui/view~View}\n\t */\n\tprivate _createFakePanelsView() {\n\t\tconst view = new FakePanelsView( this.editor.locale, this.view );\n\n\t\tview.bind( 'numberOfPanels' ).to( this, '_numberOfStacks', this, '_singleViewMode', ( number, isSingleViewMode ) => {\n\t\t\tconst showPanels = !isSingleViewMode && number >= 2;\n\n\t\t\treturn showPanels ? Math.min( number - 1, 2 ) : 0;\n\t\t} );\n\n\t\tview.listenTo<ObservableChangeEvent>( this.view, 'change:top', () => view.updatePosition() );\n\t\tview.listenTo<ObservableChangeEvent>( this.view, 'change:left', () => view.updatePosition() );\n\n\t\tthis.editor.ui.view.body.add( view );\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * Sets the view as the content of the balloon and attaches the balloon using position\n\t * options of the first view.\n\t *\n\t * @private\n\t * @param {Object} data Configuration.\n\t * @param {module:ui/view~View} [data.view] The view to show in the balloon.\n\t * @param {String} [data.balloonClassName=''] Additional class name which will be added to the {@link #view balloon}.\n\t * @param {Boolean} [data.withArrow=true] Whether the {@link #view balloon} should be rendered with an arrow.\n\t */\n\tprivate _showView( { view, balloonClassName = '', withArrow = true, singleViewMode = false }: ViewConfiguration ) {\n\t\tthis.view.class = balloonClassName;\n\t\tthis.view.withArrow = withArrow;\n\n\t\tthis._rotatorView.showView( view );\n\t\tthis.visibleView = view;\n\t\tthis.view.pin( this._getBalloonPosition()! );\n\t\tthis._fakePanelsView.updatePosition();\n\n\t\tif ( singleViewMode ) {\n\t\t\tthis._singleViewMode = true;\n\t\t}\n\t}\n\n\t/**\n\t * Returns position options of the last view in the stack.\n\t * This keeps the balloon in the same position when the view is changed.\n\t *\n\t * @private\n\t * @returns {module:utils/dom/position~Options}\n\t */\n\tprivate _getBalloonPosition() {\n\t\tlet position = Array.from( this._visibleStack.values() ).pop()!.position;\n\n\t\tif ( position ) {\n\t\t\t// Use the default limiter if none has been specified.\n\t\t\tif ( !position.limiter ) {\n\t\t\t\t// Don't modify the original options object.\n\t\t\t\tposition = Object.assign( {}, position, {\n\t\t\t\t\tlimiter: this.positionLimiter\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Don't modify the original options object.\n\t\t\tposition = Object.assign( {}, position, {\n\t\t\t\tviewportOffsetConfig: this.editor.ui.viewportOffset\n\t\t\t} );\n\t\t}\n\n\t\treturn position;\n\t}\n}\n\nexport interface ViewConfiguration {\n\tstackId?: string;\n\tview: View;\n\tposition?: Partial<PositionOptions>;\n\tballoonClassName?: string;\n\twithArrow?: boolean;\n\tsingleViewMode?: boolean;\n}\n\ntype Stack = Map<View, ViewConfiguration>;\n\n/**\n * Rotator view is a helper class for the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon ContextualBalloon}.\n * It is used for displaying the last view from the current stack and providing navigation buttons for switching stacks.\n * See the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon ContextualBalloon} documentation to learn more.\n *\n * @extends module:ui/view~View\n */\nclass RotatorView extends View {\n\tpublic readonly focusTracker: FocusTracker;\n\tpublic readonly buttonPrevView: ButtonView;\n\tpublic readonly buttonNextView: ButtonView;\n\tpublic readonly content: ViewCollection;\n\n\tdeclare public isNavigationVisible: boolean;\n\tdeclare public counter: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * Defines whether navigation is visible or not.\n\t\t *\n\t\t * @member {Boolean} #isNavigationVisible\n\t\t */\n\t\tthis.set( 'isNavigationVisible', true );\n\n\t\t/**\n\t\t * Used for checking if a view is focused or not.\n\t\t *\n\t\t * @type {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * Navigation button for switching the stack to the previous one.\n\t\t *\n\t\t * @type {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.buttonPrevView = this._createButtonView( t( 'Previous' ), prevIcon );\n\n\t\t/**\n\t\t * Navigation button for switching the stack to the next one.\n\t\t *\n\t\t * @type {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.buttonNextView = this._createButtonView( t( 'Next' ), nextIcon );\n\n\t\t/**\n\t\t * A collection of the child views that creates the rotator content.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.content = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-balloon-rotator'\n\t\t\t\t],\n\t\t\t\t'z-index': '-1'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck-balloon-rotator__navigation',\n\t\t\t\t\t\t\tbind.to( 'isNavigationVisible', value => value ? '' : 'ck-hidden' )\n\t\t\t\t\t\t]\n\t\t\t\t\t},\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tthis.buttonPrevView,\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\ttag: 'span',\n\n\t\t\t\t\t\t\tattributes: {\n\t\t\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t\t\t'ck-balloon-rotator__counter'\n\t\t\t\t\t\t\t\t]\n\t\t\t\t\t\t\t},\n\n\t\t\t\t\t\t\tchildren: [\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\ttext: bind.to( 'counter' )\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t]\n\t\t\t\t\t\t},\n\t\t\t\t\t\tthis.buttonNextView\n\t\t\t\t\t]\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: 'ck-balloon-rotator__content'\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.content\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.focusTracker.add( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t}\n\n\t/**\n\t * Shows a given view.\n\t *\n\t * @param {module:ui/view~View} view The view to show.\n\t */\n\tpublic showView( view: View ): void {\n\t\tthis.hideView();\n\t\tthis.content.add( view );\n\t}\n\n\t/**\n\t * Hides the currently displayed view.\n\t */\n\tpublic hideView(): void {\n\t\tthis.content.clear();\n\t}\n\n\t/**\n\t * Creates a navigation button view.\n\t *\n\t * @private\n\t * @param {String} label The button label.\n\t * @param {String} icon The button icon.\n\t * @returns {module:ui/button/buttonview~ButtonView}\n\t */\n\tprivate _createButtonView( label: string, icon: string ) {\n\t\tconst view = new ButtonView( this.locale );\n\n\t\tview.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\treturn view;\n\t}\n}\n\n// Displays additional layers under the balloon when multiple stacks are added to the balloon.\n//\n// @private\n// @extends module:ui/view~View\nclass FakePanelsView extends View {\n\tpublic readonly content: ViewCollection;\n\n\tdeclare public top: number;\n\tdeclare public left: number;\n\tdeclare public height: number;\n\tdeclare public width: number;\n\tdeclare public numberOfPanels: number;\n\n\tprivate readonly _balloonPanelView: BalloonPanelView;\n\n\t// @inheritDoc\n\tconstructor( locale: Locale, balloonPanelView: BalloonPanelView ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t// Fake panels top offset.\n\t\t//\n\t\t// @observable\n\t\t// @member {Number} #top\n\t\tthis.set( 'top', 0 );\n\n\t\t// Fake panels left offset.\n\t\t//\n\t\t// @observable\n\t\t// @member {Number} #left\n\t\tthis.set( 'left', 0 );\n\n\t\t// Fake panels height.\n\t\t//\n\t\t// @observable\n\t\t// @member {Number} #height\n\t\tthis.set( 'height', 0 );\n\n\t\t// Fake panels width.\n\t\t//\n\t\t// @observable\n\t\t// @member {Number} #width\n\t\tthis.set( 'width', 0 );\n\n\t\t// Number of rendered fake panels.\n\t\t//\n\t\t// @observable\n\t\t// @member {Number} #numberOfPanels\n\t\tthis.set( 'numberOfPanels', 0 );\n\n\t\t// Collection of the child views which creates fake panel content.\n\t\t//\n\t\t// @readonly\n\t\t// @type {module:ui/viewcollection~ViewCollection}\n\t\tthis.content = this.createCollection();\n\n\t\t// Context.\n\t\t//\n\t\t// @private\n\t\t// @type {module:ui/panel/balloon/balloonpanelview~BalloonPanelView}\n\t\tthis._balloonPanelView = balloonPanelView;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-fake-panel',\n\t\t\t\t\tbind.to( 'numberOfPanels', number => number ? '' : 'ck-hidden' )\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\ttop: bind.to( 'top', toPx ),\n\t\t\t\t\tleft: bind.to( 'left', toPx ),\n\t\t\t\t\twidth: bind.to( 'width', toPx ),\n\t\t\t\t\theight: bind.to( 'height', toPx )\n\t\t\t\t}\n\t\t\t},\n\t\t\tchildren: this.content\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent<number>>( 'change:numberOfPanels', ( evt, name, next, prev ) => {\n\t\t\tif ( next > prev ) {\n\t\t\t\tthis._addPanels( next - prev );\n\t\t\t} else {\n\t\t\t\tthis._removePanels( prev - next );\n\t\t\t}\n\n\t\t\tthis.updatePosition();\n\t\t} );\n\t}\n\n\t// @private\n\t// @param {Number} number\n\tprivate _addPanels( number: number ) {\n\t\twhile ( number-- ) {\n\t\t\tconst view = new View();\n\n\t\t\tview.setTemplate( { tag: 'div' } );\n\n\t\t\tthis.content.add( view );\n\t\t\tthis.registerChild( view );\n\t\t}\n\t}\n\n\t// @private\n\t// @param {Number} number\n\tprivate _removePanels( number: number ) {\n\t\twhile ( number-- ) {\n\t\t\tconst view = this.content.last!;\n\n\t\t\tthis.content.remove( view );\n\t\t\tthis.deregisterChild( view );\n\t\t\tview.destroy();\n\t\t}\n\t}\n\n\t// Updates coordinates of fake panels.\n\tpublic updatePosition() {\n\t\tif ( this.numberOfPanels ) {\n\t\t\tconst { top, left } = this._balloonPanelView;\n\t\t\tconst { width, height } = new Rect( this._balloonPanelView.element! );\n\n\t\t\tObject.assign( this, { top, left, width, height } );\n\t\t}\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ ContextualBalloon.pluginName ]: ContextualBalloon;\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M8.537 14.813a.888.888 0 1 1-1.254-1.255L10.84 10 7.283 6.442a.888.888 0 1 1 1.254-1.255L12.74 9.39a.888.888 0 0 1-.16 1.382l-4.043 4.042z\\\"/></svg>\";","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./stickypanel.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/panel/sticky/stickypanelview\n */\n\nimport View from '../../view';\nimport Template from '../../template';\n\nimport {\n\tglobal,\n\ttoUnit,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type ViewCollection from '../../viewcollection';\n\nimport '../../../theme/components/panel/stickypanel.css';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * The sticky panel view class.\n */\nexport default class StickyPanelView extends View {\n\tpublic readonly content: ViewCollection;\n\n\tdeclare public isActive: boolean;\n\tdeclare public isSticky: boolean;\n\tdeclare public limiterElement: HTMLElement | null;\n\tdeclare public limiterBottomOffset: number;\n\tdeclare public viewportTopOffset: number;\n\n\tdeclare public _marginLeft: string | null;\n\tdeclare public _isStickyToTheLimiter: boolean;\n\tdeclare public _hasViewportTopOffset: boolean;\n\n\tprivate _panelRect?: DOMRect;\n\tprivate _limiterRect?: DOMRect;\n\tprivate _contentPanelPlaceholder: HTMLElement;\n\tprivate _contentPanel: HTMLElement;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * Controls whether the sticky panel should be active.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isActive\n\t\t */\n\t\tthis.set( 'isActive', false );\n\n\t\t/**\n\t\t * Controls whether the sticky panel is in the \"sticky\" state.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isSticky\n\t\t */\n\t\tthis.set( 'isSticky', false );\n\n\t\t/**\n\t\t * The limiter element for the sticky panel instance. Its bounding rect limits\n\t\t * the \"stickyness\" of the panel, i.e. when the panel reaches the bottom\n\t\t * edge of the limiter, it becomes sticky to that edge and does not float\n\t\t * off the limiter. It is mandatory for the panel to work properly and once\n\t\t * set, it cannot be changed.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {HTMLElement} #limiterElement\n\t\t */\n\t\tthis.set( 'limiterElement', null );\n\n\t\t/**\n\t\t * The offset from the bottom edge of {@link #limiterElement}\n\t\t * which stops the panel from stickying any further to prevent limiter's content\n\t\t * from being completely covered.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @default 50\n\t\t * @member {Number} #limiterBottomOffset\n\t\t */\n\t\tthis.set( 'limiterBottomOffset', 50 );\n\n\t\t/**\n\t\t * The offset from the top edge of the web browser's viewport which makes the\n\t\t * panel become sticky. The default value is `0`, which means the panel becomes\n\t\t * sticky when it's upper edge touches the top of the page viewport.\n\t\t *\n\t\t * This attribute is useful when the web page has UI elements positioned to the top\n\t\t * either using `position: fixed` or `position: sticky`, which would cover the\n\t\t * sticky panel or vice–versa (depending on the `z-index` hierarchy).\n\t\t *\n\t\t * Bound to {@link module:core/editor/editorui~EditorUI#viewportOffset `EditorUI#viewportOffset`}.\n\t\t *\n\t\t * If {@link module:core/editor/editorconfig~EditorConfig#ui `EditorConfig#ui.viewportOffset.top`} is defined, then\n\t\t * it will override the default value.\n\t\t *\n\t\t * @observable\n\t\t * @default 0\n\t\t * @member {Number} #viewportTopOffset\n\t\t */\n\t\tthis.set( 'viewportTopOffset', 0 );\n\n\t\t/**\n\t\t * Controls the `margin-left` CSS style of the panel.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {String} #_marginLeft\n\t\t */\n\t\tthis.set( '_marginLeft', null );\n\n\t\t/**\n\t\t * Set `true` if the sticky panel reached the bottom edge of the\n\t\t * {@link #limiterElement}.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #_isStickyToTheLimiter\n\t\t */\n\t\tthis.set( '_isStickyToTheLimiter', false );\n\n\t\t/**\n\t\t * Set `true` if the sticky panel uses the {@link #viewportTopOffset},\n\t\t * i.e. not {@link #_isStickyToTheLimiter} and the {@link #viewportTopOffset}\n\t\t * is not `0`.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #_hasViewportTopOffset\n\t\t */\n\t\tthis.set( '_hasViewportTopOffset', false );\n\n\t\t/**\n\t\t * Collection of the child views which creates balloon panel contents.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.content = this.createCollection();\n\n\t\t/**\n\t\t * The DOM bounding client rect of the {@link module:ui/view~View#element} of the panel.\n\t\t *\n\t\t * @protected\n\t\t * @member {Object} #_panelRect\n\t\t */\n\n\t\t/**\n\t\t * The DOM bounding client rect of the {@link #limiterElement}\n\t\t * of the panel.\n\t\t *\n\t\t * @protected\n\t\t * @member {Object} #_limiterRect\n\t\t */\n\n\t\t/**\n\t\t * A dummy element which visually fills the space as long as the\n\t\t * actual panel is sticky. It prevents flickering of the UI.\n\t\t *\n\t\t * @protected\n\t\t * @property {HTMLElement}\n\t\t */\n\t\tthis._contentPanelPlaceholder = new Template( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-sticky-panel__placeholder'\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\tdisplay: bind.to( 'isSticky', isSticky => isSticky ? 'block' : 'none' ),\n\t\t\t\t\theight: bind.to( 'isSticky', isSticky => {\n\t\t\t\t\t\treturn isSticky ? toPx( this._panelRect!.height ) : null;\n\t\t\t\t\t} )\n\t\t\t\t}\n\t\t\t}\n\t\t} ).render() as HTMLElement;\n\n\t\t/**\n\t\t * The panel which accepts children into {@link #content} collection.\n\t\t * Also an element which is positioned when {@link #isSticky}.\n\t\t *\n\t\t * @protected\n\t\t * @property {HTMLElement}\n\t\t */\n\t\tthis._contentPanel = new Template( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-sticky-panel__content',\n\t\t\t\t\t// Toggle class of the panel when \"sticky\" state changes in the view.\n\t\t\t\t\tbind.if( 'isSticky', 'ck-sticky-panel__content_sticky' ),\n\t\t\t\t\tbind.if( '_isStickyToTheLimiter', 'ck-sticky-panel__content_sticky_bottom-limit' )\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\twidth: bind.to( 'isSticky', isSticky => {\n\t\t\t\t\t\treturn isSticky ? toPx( this._contentPanelPlaceholder.getBoundingClientRect().width ) : null;\n\t\t\t\t\t} ),\n\n\t\t\t\t\ttop: bind.to( '_hasViewportTopOffset', _hasViewportTopOffset => {\n\t\t\t\t\t\treturn _hasViewportTopOffset ? toPx( this.viewportTopOffset ) : null;\n\t\t\t\t\t} ),\n\n\t\t\t\t\tbottom: bind.to( '_isStickyToTheLimiter', _isStickyToTheLimiter => {\n\t\t\t\t\t\treturn _isStickyToTheLimiter ? toPx( this.limiterBottomOffset ) : null;\n\t\t\t\t\t} ),\n\n\t\t\t\t\tmarginLeft: bind.to( '_marginLeft' )\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tchildren: this.content\n\t\t} ).render() as HTMLElement;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-sticky-panel'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis._contentPanelPlaceholder,\n\t\t\t\tthis._contentPanel\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Check if the panel should go into the sticky state immediately.\n\t\tthis._checkIfShouldBeSticky();\n\n\t\t// Update sticky state of the panel as the window is being scrolled.\n\t\tthis.listenTo( global.window, 'scroll', () => {\n\t\t\tthis._checkIfShouldBeSticky();\n\t\t} );\n\n\t\t// Synchronize with `model.isActive` because sticking an inactive panel is pointless.\n\t\tthis.listenTo<ObservableChangeEvent>( this, 'change:isActive', () => {\n\t\t\tthis._checkIfShouldBeSticky();\n\t\t} );\n\t}\n\n\t/**\n\t * Analyzes the environment to decide whether the panel should\n\t * be sticky or not.\n\t *\n\t * @protected\n\t */\n\tprivate _checkIfShouldBeSticky(): void {\n\t\tconst panelRect = this._panelRect = this._contentPanel.getBoundingClientRect();\n\t\tlet limiterRect: DOMRect;\n\n\t\tif ( !this.limiterElement ) {\n\t\t\tthis.isSticky = false;\n\t\t} else {\n\t\t\tlimiterRect = this._limiterRect = this.limiterElement.getBoundingClientRect();\n\n\t\t\t// The panel must be active to become sticky.\n\t\t\tthis.isSticky = this.isActive &&\n\t\t\t\t// The limiter's top edge must be beyond the upper edge of the visible viewport (+the viewportTopOffset).\n\t\t\t\tlimiterRect.top < this.viewportTopOffset &&\n\t\t\t\t// The model#limiterElement's height mustn't be smaller than the panel's height and model#limiterBottomOffset.\n\t\t\t\t// There's no point in entering the sticky mode if the model#limiterElement is very, very small, because\n\t\t\t\t// it would immediately set model#_isStickyToTheLimiter true and, given model#limiterBottomOffset, the panel\n\t\t\t\t// would be positioned before the model#limiterElement.\n\t\t\t\tthis._panelRect.height + this.limiterBottomOffset < limiterRect.height;\n\t\t}\n\n\t\t// Stick the panel to the top edge of the viewport simulating CSS position:sticky.\n\t\t// TODO: Possibly replaced by CSS in the future http://caniuse.com/#feat=css-sticky\n\t\tif ( this.isSticky ) {\n\t\t\tthis._isStickyToTheLimiter =\n\t\t\t\tlimiterRect!.bottom < panelRect.height + this.limiterBottomOffset + this.viewportTopOffset;\n\t\t\tthis._hasViewportTopOffset = !this._isStickyToTheLimiter && !!this.viewportTopOffset;\n\t\t\tthis._marginLeft = this._isStickyToTheLimiter ? null : toPx( -global.window.scrollX );\n\t\t}\n\t\t// Detach the panel from the top edge of the viewport.\n\t\telse {\n\t\t\tthis._isStickyToTheLimiter = false;\n\t\t\tthis._hasViewportTopOffset = false;\n\t\t\tthis._marginLeft = null;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/balloon/balloontoolbar\n */\n\nimport {\n\tPlugin,\n\ttype Editor,\n\ttype EditorReadyEvent,\n\ttype EditorUIReadyEvent,\n\ttype EditorUIUpdateEvent,\n\ttype PluginDependencies,\n\ttype ToolbarConfig\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tFocusTracker,\n\tRect,\n\tResizeObserver,\n\tenv,\n\tglobal,\n\ttoUnit,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDocumentSelection,\n\tDocumentSelectionChangeRangeEvent,\n\tSchema\n} from '@ckeditor/ckeditor5-engine';\n\nimport ContextualBalloon from '../../panel/balloon/contextualballoon';\nimport ToolbarView, { type ToolbarViewGroupedItemsUpdateEvent } from '../toolbarview';\nimport BalloonPanelView, { generatePositions } from '../../panel/balloon/balloonpanelview';\nimport normalizeToolbarConfig from '../normalizetoolbarconfig';\n\nimport { debounce, type DebouncedFunc } from 'lodash-es';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * The contextual toolbar.\n *\n * It uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BalloonToolbar extends Plugin {\n\tpublic readonly toolbarView: ToolbarView;\n\tpublic readonly focusTracker: FocusTracker;\n\n\tprivate _balloonConfig: ReturnType<typeof normalizeToolbarConfig>;\n\tprivate _resizeObserver: ResizeObserver | null;\n\tprivate readonly _balloon: ContextualBalloon;\n\tprivate readonly _fireSelectionChangeDebounced: DebouncedFunc<() => void>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BalloonToolbar' {\n\t\treturn 'BalloonToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ ContextualBalloon ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A cached and normalized `config.balloonToolbar` object.\n\t\t *\n\t\t * @type {module:core/editor/editorconfig~EditorConfig#balloonToolbar}\n\t\t * @private\n\t\t */\n\t\tthis._balloonConfig = normalizeToolbarConfig( editor.config.get( 'balloonToolbar' ) );\n\n\t\t/**\n\t\t * The toolbar view displayed in the balloon.\n\t\t *\n\t\t * @type {module:ui/toolbar/toolbarview~ToolbarView}\n\t\t */\n\t\tthis.toolbarView = this._createToolbarView();\n\n\t\t/**\n\t\t * Tracks the focus of the {@link module:core/editor/editorui~EditorUI#getEditableElement editable element}\n\t\t * and the {@link #toolbarView}. When both are blurred then the toolbar should hide.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:utils:focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t// Wait for the EditorUI#init. EditableElement is not available before.\n\t\teditor.ui.once<EditorUIReadyEvent>( 'ready', () => {\n\t\t\tthis.focusTracker.add( editor.ui.getEditableElement()! );\n\t\t\tthis.focusTracker.add( this.toolbarView.element! );\n\t\t} );\n\n\t\t// Register the toolbar so it becomes available for Alt+F10 and Esc navigation.\n\t\teditor.ui.addToolbar( this.toolbarView, {\n\t\t\tbeforeFocus: () => this.show( true ),\n\t\t\tafterBlur: () => this.hide(),\n\t\t\tisContextual: true\n\t\t} );\n\n\t\t/**\n\t\t * An instance of the resize observer that allows to respond to changes in editable's geometry\n\t\t * so the toolbar can stay within its boundaries (and group toolbar items that do not fit).\n\t\t *\n\t\t * **Note**: Used only when `shouldNotGroupWhenFull` was **not** set in the\n\t\t * {@link module:core/editor/editorconfig~EditorConfig#balloonToolbar configuration}.\n\t\t *\n\t\t * **Note:** Created in {@link #init}.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:utils/dom/resizeobserver~ResizeObserver}\n\t\t */\n\t\tthis._resizeObserver = null;\n\n\t\t/**\n\t\t * The contextual balloon plugin instance.\n\t\t *\n\t\t * @private\n\t\t * @type {module:ui/panel/balloon/contextualballoon~ContextualBalloon}\n\t\t */\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\t/**\n\t\t * Fires {@link #event:_selectionChangeDebounced} event using `lodash#debounce`.\n\t\t *\n\t\t * This function is stored as a plugin property to make possible to cancel\n\t\t * trailing debounced invocation on destroy.\n\t\t *\n\t\t * @private\n\t\t * @type {Function}\n\t\t */\n\t\tthis._fireSelectionChangeDebounced = debounce( () => this.fire( '_selectionChangeDebounced' ), 200 );\n\n\t\t// The appearance of the BalloonToolbar method is event–driven.\n\t\t// It is possible to stop the #show event and this prevent the toolbar from showing up.\n\t\tthis.decorate( 'show' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\t// Show/hide the toolbar on editable focus/blur.\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( this.focusTracker, 'change:isFocused', ( evt, name, isFocused ) => {\n\t\t\tconst isToolbarVisible = this._balloon.visibleView === this.toolbarView;\n\n\t\t\tif ( !isFocused && isToolbarVisible ) {\n\t\t\t\tthis.hide();\n\t\t\t} else if ( isFocused ) {\n\t\t\t\tthis.show();\n\t\t\t}\n\t\t} );\n\n\t\t// Hide the toolbar when the selection is changed by a direct change or has changed to collapsed.\n\t\tthis.listenTo<DocumentSelectionChangeRangeEvent>( selection, 'change:range', ( evt, data ) => {\n\t\t\tif ( data.directChange || selection.isCollapsed ) {\n\t\t\t\tthis.hide();\n\t\t\t}\n\n\t\t\t// Fire internal `_selectionChangeDebounced` event to use it for showing\n\t\t\t// the toolbar after the selection stops changing.\n\t\t\tthis._fireSelectionChangeDebounced();\n\t\t} );\n\n\t\t// Show the toolbar when the selection stops changing.\n\t\tthis.listenTo( this, '_selectionChangeDebounced', () => {\n\t\t\tif ( this.editor.editing.view.document.isFocused ) {\n\t\t\t\tthis.show();\n\t\t\t}\n\t\t} );\n\n\t\tif ( !this._balloonConfig.shouldNotGroupWhenFull ) {\n\t\t\tthis.listenTo<EditorReadyEvent>( editor, 'ready', () => {\n\t\t\t\tconst editableElement = editor.ui.view.editable.element!;\n\n\t\t\t\t// Set #toolbarView's max-width on the initialization and update it on the editable resize.\n\t\t\t\tthis._resizeObserver = new ResizeObserver( editableElement, () => {\n\t\t\t\t\t// The max-width equals 90% of the editable's width for the best user experience.\n\t\t\t\t\t// The value keeps the balloon very close to the boundaries of the editable and limits the cases\n\t\t\t\t\t// when the balloon juts out from the editable element it belongs to.\n\t\t\t\t\tthis.toolbarView.maxWidth = toPx( new Rect( editableElement ).width * .9 );\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\n\t\t// Listen to the toolbar view and whenever it changes its geometry due to some items being\n\t\t// grouped or ungrouped, update the position of the balloon because a shorter/longer toolbar\n\t\t// means the balloon could be pointing at the wrong place. Once updated, the balloon will point\n\t\t// at the right selection in the content again.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/6444\n\t\tthis.listenTo<ToolbarViewGroupedItemsUpdateEvent>( this.toolbarView, 'groupedItemsUpdate', () => {\n\t\t\tthis._updatePosition();\n\t\t} );\n\t}\n\n\t/**\n\t * Creates toolbar components based on given configuration.\n\t * This needs to be done when all plugins are ready.\n\t *\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst factory = this.editor.ui.componentFactory;\n\n\t\tthis.toolbarView.fillFromConfig( this._balloonConfig, factory );\n\t}\n\n\t/**\n\t * Creates the toolbar view instance.\n\t *\n\t * @private\n\t * @returns {module:ui/toolbar/toolbarview~ToolbarView}\n\t */\n\tprivate _createToolbarView() {\n\t\tconst t = this.editor.locale.t;\n\t\tconst shouldGroupWhenFull = !this._balloonConfig.shouldNotGroupWhenFull;\n\t\tconst toolbarView = new ToolbarView( this.editor.locale, {\n\t\t\tshouldGroupWhenFull,\n\t\t\tisFloating: true\n\t\t} );\n\n\t\ttoolbarView.ariaLabel = t( 'Editor contextual toolbar' );\n\t\ttoolbarView.render();\n\n\t\treturn toolbarView;\n\t}\n\n\t/**\n\t * Shows the toolbar and attaches it to the selection.\n\t *\n\t * Fires {@link #event:show} event which can be stopped to prevent the toolbar from showing up.\n\t *\n\t * @param {Boolean} [showForCollapsedSelection=false] When set `true`, the toolbar will show despite collapsed selection in the\n\t * editing view.\n\t */\n\tpublic show( showForCollapsedSelection: boolean = false ): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Do not add the toolbar to the balloon stack twice.\n\t\tif ( this._balloon.hasView( this.toolbarView ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not show the toolbar when the selection is collapsed.\n\t\tif ( selection.isCollapsed && !showForCollapsedSelection ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not show the toolbar when there is more than one range in the selection and they fully contain selectable elements.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/6443.\n\t\tif ( selectionContainsOnlyMultipleSelectables( selection, schema ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Don not show the toolbar when all components inside are disabled\n\t\t// see https://github.com/ckeditor/ckeditor5-ui/issues/269.\n\t\tif ( Array.from( this.toolbarView.items ).every( ( item: any ) => item.isEnabled !== undefined && !item.isEnabled ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Update the toolbar position when the editor ui should be refreshed.\n\t\tthis.listenTo<EditorUIUpdateEvent>( this.editor.ui, 'update', () => {\n\t\t\tthis._updatePosition();\n\t\t} );\n\n\t\t// Add the toolbar to the common editor contextual balloon.\n\t\tthis._balloon.add( {\n\t\t\tview: this.toolbarView,\n\t\t\tposition: this._getBalloonPositionData(),\n\t\t\tballoonClassName: 'ck-toolbar-container'\n\t\t} );\n\t}\n\n\t/**\n\t * Hides the toolbar.\n\t */\n\tpublic hide(): void {\n\t\tif ( this._balloon.hasView( this.toolbarView ) ) {\n\t\t\tthis.stopListening( this.editor.ui, 'update' );\n\t\t\tthis._balloon.remove( this.toolbarView );\n\t\t}\n\t}\n\n\t/**\n\t * Returns positioning options for the {@link #_balloon}. They control the way balloon is attached\n\t * to the selection.\n\t *\n\t * @private\n\t * @returns {module:utils/dom/position~Options}\n\t */\n\tprivate _getBalloonPositionData() {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst viewSelection = viewDocument.selection;\n\n\t\t// Get direction of the selection.\n\t\tconst isBackward = viewDocument.selection.isBackward;\n\n\t\treturn {\n\t\t\t// Because the target for BalloonPanelView is a Rect (not DOMRange), it's geometry will stay fixed\n\t\t\t// as the window scrolls. To let the BalloonPanelView follow such Rect, is must be continuously\n\t\t\t// computed and hence, the target is defined as a function instead of a static value.\n\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/195\n\t\t\ttarget: () => {\n\t\t\t\tconst range = isBackward ? viewSelection.getFirstRange() : viewSelection.getLastRange();\n\t\t\t\tconst rangeRects = Rect.getDomRangeRects( view.domConverter.viewRangeToDom( range! ) );\n\n\t\t\t\t// Select the proper range rect depending on the direction of the selection.\n\t\t\t\tif ( isBackward ) {\n\t\t\t\t\treturn rangeRects[ 0 ];\n\t\t\t\t} else {\n\t\t\t\t\t// Ditch the zero-width \"orphan\" rect in the next line for the forward selection if there's\n\t\t\t\t\t// another one preceding it. It is not rendered as a selection by the web browser anyway.\n\t\t\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/308\n\t\t\t\t\tif ( rangeRects.length > 1 && rangeRects[ rangeRects.length - 1 ].width === 0 ) {\n\t\t\t\t\t\trangeRects.pop();\n\t\t\t\t\t}\n\n\t\t\t\t\treturn rangeRects[ rangeRects.length - 1 ];\n\t\t\t\t}\n\t\t\t},\n\t\t\tpositions: this._getBalloonPositions( isBackward )\n\t\t};\n\t}\n\n\t/**\n\t * Updates the position of the {@link #_balloon} to make up for changes:\n\t *\n\t * * in the geometry of the selection it is attached to (e.g. the selection moved in the viewport or expanded or shrunk),\n\t * * or the geometry of the balloon toolbar itself (e.g. the toolbar has grouped or ungrouped some items and it is shorter or longer).\n\t *\n\t * @private\n\t */\n\tprivate _updatePosition() {\n\t\tthis._balloon.updatePosition( this._getBalloonPositionData() );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.stopListening();\n\t\tthis._fireSelectionChangeDebounced.cancel();\n\t\tthis.toolbarView.destroy();\n\t\tthis.focusTracker.destroy();\n\n\t\tif ( this._resizeObserver ) {\n\t\t\tthis._resizeObserver.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * This event is fired just before the toolbar shows up. Stopping this event will prevent this.\n\t *\n\t * @event show\n\t */\n\n\t/**\n\t * This is internal plugin event which is fired 200 ms after model selection last change.\n\t * This is to makes easy test debounced action without need to use `setTimeout`.\n\t *\n\t * @protected\n\t * @event _selectionChangeDebounced\n\t */\n\n\t/**\n\t * Returns toolbar positions for the given direction of the selection.\n\t *\n\t * @private\n\t * @param {Boolean} isBackward\n\t * @returns {Array.<module:utils/dom/position~Position>}\n\t */\n\tprivate _getBalloonPositions( isBackward: boolean ) {\n\t\tconst isSafariIniOS = env.isSafari && env.isiOS;\n\n\t\t// https://github.com/ckeditor/ckeditor5/issues/7707\n\t\tconst positions = isSafariIniOS ? generatePositions( {\n\t\t\t// 20px when zoomed out. Less then 20px when zoomed in; the \"radius\" of the native selection handle gets\n\t\t\t// smaller as the user zooms in. No less than the default v-offset, though.\n\t\t\theightOffset: Math.max(\n\t\t\t\tBalloonPanelView.arrowHeightOffset,\n\t\t\t\tMath.round( 20 / global.window.visualViewport!.scale )\n\t\t\t)\n\t\t} ) : BalloonPanelView.defaultPositions;\n\n\t\treturn isBackward ? [\n\t\t\tpositions.northWestArrowSouth,\n\t\t\tpositions.northWestArrowSouthWest,\n\t\t\tpositions.northWestArrowSouthEast,\n\t\t\tpositions.northWestArrowSouthMiddleEast,\n\t\t\tpositions.northWestArrowSouthMiddleWest,\n\t\t\tpositions.southWestArrowNorth,\n\t\t\tpositions.southWestArrowNorthWest,\n\t\t\tpositions.southWestArrowNorthEast,\n\t\t\tpositions.southWestArrowNorthMiddleWest,\n\t\t\tpositions.southWestArrowNorthMiddleEast\n\t\t] : [\n\t\t\tpositions.southEastArrowNorth,\n\t\t\tpositions.southEastArrowNorthEast,\n\t\t\tpositions.southEastArrowNorthWest,\n\t\t\tpositions.southEastArrowNorthMiddleEast,\n\t\t\tpositions.southEastArrowNorthMiddleWest,\n\t\t\tpositions.northEastArrowSouth,\n\t\t\tpositions.northEastArrowSouthEast,\n\t\t\tpositions.northEastArrowSouthWest,\n\t\t\tpositions.northEastArrowSouthMiddleEast,\n\t\t\tpositions.northEastArrowSouthMiddleWest\n\t\t];\n\t}\n}\n\n// Returns \"true\" when the selection has multiple ranges and each range contains a selectable element\n// and nothing else.\n//\n// @private\n// @param {module:engine/model/selection~Selection} selection\n// @param {module:engine/model/schema~Schema} schema\n// @returns {Boolean}\nfunction selectionContainsOnlyMultipleSelectables( selection: DocumentSelection, schema: Schema ) {\n\t// It doesn't contain multiple objects if there is only one range.\n\tif ( selection.rangeCount === 1 ) {\n\t\treturn false;\n\t}\n\n\treturn [ ...selection.getRanges() ].every( range => {\n\t\tconst element = range.getContainedElement();\n\n\t\treturn element && schema.isSelectable( element );\n\t} );\n}\n\n/**\n * Contextual toolbar configuration. Used by the {@link module:ui/toolbar/balloon/balloontoolbar~BalloonToolbar}\n * feature.\n *\n * ## Configuring toolbar items\n *\n *\t\tconst config = {\n *\t\t\tballoonToolbar: [ 'bold', 'italic', 'undo', 'redo' ]\n *\t\t};\n *\n * You can also use `'|'` to create a separator between groups of items:\n *\n *\t\tconst config = {\n *\t\t\tballoonToolbar: [ 'bold', 'italic', '|', 'undo', 'redo' ]\n *\t\t};\n *\n * Read also about configuring the main editor toolbar in {@link module:core/editor/editorconfig~EditorConfig#toolbar}.\n *\n * ## Configuring items grouping\n *\n * You can prevent automatic items grouping by setting the `shouldNotGroupWhenFull` option:\n *\n *\t\tconst config = {\n *\t\t\tballoonToolbar: {\n *\t\t\t\titems: [ 'bold', 'italic', 'undo', 'redo' ],\n *\t\t\t\tshouldNotGroupWhenFull: true\n *\t\t\t},\n *\t\t};\n *\n * @member {Array.<String>|Object} module:core/editor/editorconfig~EditorConfig#balloonToolbar\n */\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface EditorConfig {\n\t\tballoonToolbar?: ToolbarConfig;\n\t}\n}\n\nexport type BaloonToolbarShowEvent = {\n\tname: 'show';\n\targs: [];\n};\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ BalloonToolbar.pluginName ]: BalloonToolbar;\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./blocktoolbar.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/block/blockbuttonview\n */\n\nimport ButtonView from '../../button/buttonview';\nimport '../../../theme/components/toolbar/blocktoolbar.css';\n\nimport { toUnit, type Locale } from '@ckeditor/ckeditor5-utils';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * The block button view class.\n *\n * This view represents a button attached next to block element where the selection is anchored.\n *\n * See {@link module:ui/toolbar/block/blocktoolbar~BlockToolbar}.\n *\n * @extends {module:ui/button/buttonview~ButtonView}\n */\nexport default class BlockButtonView extends ButtonView {\n\tdeclare public top: number;\n\tdeclare public left: number;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t// Hide button on init.\n\t\tthis.isVisible = false;\n\n\t\tthis.isToggleable = true;\n\n\t\t/**\n\t\t * Top offset.\n\t\t *\n\t\t * @member {Number} #top\n\t\t */\n\t\tthis.set( 'top', 0 );\n\n\t\t/**\n\t\t * Left offset.\n\t\t *\n\t\t * @member {Number} #left\n\t\t */\n\t\tthis.set( 'left', 0 );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-block-toolbar-button',\n\t\t\t\tstyle: {\n\t\t\t\t\ttop: bind.to( 'top', val => toPx( val ) ),\n\t\t\t\t\tleft: bind.to( 'left', val => toPx( val ) )\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/block/blocktoolbar\n */\n\n/* global window */\n\nimport {\n\tPlugin,\n\ticons,\n\ttype Editor,\n\ttype EditorUIUpdateEvent,\n\ttype ToolbarConfig\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tRect,\n\tResizeObserver,\n\tgetOptimalPosition,\n\tenv,\n\ttoUnit,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { DocumentSelectionChangeRangeEvent } from '@ckeditor/ckeditor5-engine';\n\nimport BlockButtonView from './blockbuttonview';\nimport BalloonPanelView from '../../panel/balloon/balloonpanelview';\nimport ToolbarView from '../toolbarview';\nimport clickOutsideHandler from '../../bindings/clickoutsidehandler';\nimport normalizeToolbarConfig from '../normalizetoolbarconfig';\n\nimport type { ButtonExecuteEvent } from '../../button/button';\n\nconst toPx = toUnit( 'px' );\nconst { pilcrow } = icons;\n\n/**\n * The block toolbar plugin.\n *\n * This plugin provides a button positioned next to the block of content where the selection is anchored.\n * Upon clicking the button, a dropdown providing access to editor features shows up, as configured in\n * {@link module:core/editor/editorconfig~EditorConfig#blockToolbar}.\n *\n * By default, the button is displayed next to all elements marked in {@link module:engine/model/schema~Schema}\n * as `$block` for which the toolbar provides at least one option.\n *\n * By default, the button is attached so its right boundary is touching the\n * {@link module:engine/view/editableelement~EditableElement}:\n *\n * \t\t __ |\n * \t\t|  ||  This is a block of content that the\n * \t\t ¯¯ |  button is attached to. This is a\n * \t\t    |  block of content that the button is\n * \t\t    |  attached to.\n *\n * The position of the button can be adjusted using the CSS `transform` property:\n *\n * \t\t.ck-block-toolbar-button {\n * \t\t\ttransform: translateX( -10px );\n * \t\t}\n *\n * \t\t __   |\n * \t\t|  |  |  This is a block of content that the\n * \t\t ¯¯   |  button is attached to. This is a\n * \t\t      |  block of content that the button is\n * \t\t      |  attached to.\n *\n * **Note**: If you plan to run the editor in a right–to–left (RTL) language, keep in mind the button\n * will be attached to the **right** boundary of the editable area. In that case, make sure the\n * CSS position adjustment works properly by adding the following styles:\n *\n * \t\t.ck[dir=\"rtl\"] .ck-block-toolbar-button {\n * \t\t\ttransform: translateX( 10px );\n * \t\t}\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BlockToolbar extends Plugin {\n\tpublic readonly toolbarView: ToolbarView;\n\tpublic readonly panelView: BalloonPanelView;\n\tpublic readonly buttonView: BlockButtonView;\n\n\tprivate _resizeObserver: ResizeObserver | null;\n\tprivate _blockToolbarConfig: ReturnType<typeof normalizeToolbarConfig>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BlockToolbar' {\n\t\treturn 'BlockToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A cached and normalized `config.blockToolbar` object.\n\t\t *\n\t\t * @type {module:core/editor/editorconfig~EditorConfig#blockToolbar}\n\t\t * @private\n\t\t */\n\t\tthis._blockToolbarConfig = normalizeToolbarConfig( this.editor.config.get( 'blockToolbar' ) );\n\n\t\t/**\n\t\t * The toolbar view.\n\t\t *\n\t\t * @type {module:ui/toolbar/toolbarview~ToolbarView}\n\t\t */\n\t\tthis.toolbarView = this._createToolbarView();\n\n\t\t/**\n\t\t * The balloon panel view, containing the {@link #toolbarView}.\n\t\t *\n\t\t * @type {module:ui/panel/balloon/balloonpanelview~BalloonPanelView}\n\t\t */\n\t\tthis.panelView = this._createPanelView();\n\n\t\t/**\n\t\t * The button view that opens the {@link #toolbarView}.\n\t\t *\n\t\t * @type {module:ui/toolbar/block/blockbuttonview~BlockButtonView}\n\t\t */\n\t\tthis.buttonView = this._createButtonView();\n\n\t\t/**\n\t\t * An instance of the resize observer that allows to respond to changes in editable's geometry\n\t\t * so the toolbar can stay within its boundaries (and group toolbar items that do not fit).\n\t\t *\n\t\t * **Note**: Used only when `shouldNotGroupWhenFull` was **not** set in the\n\t\t * {@link module:core/editor/editorconfig~EditorConfig#blockToolbar configuration}.\n\t\t *\n\t\t * **Note:** Created in {@link #afterInit}.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:utils/dom/resizeobserver~ResizeObserver}\n\t\t */\n\t\tthis._resizeObserver = null;\n\n\t\t// Close the #panelView upon clicking outside of the plugin UI.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this.panelView,\n\t\t\tcontextElements: [ this.panelView.element!, this.buttonView.element! ],\n\t\t\tactivator: () => this.panelView.isVisible,\n\t\t\tcallback: () => this._hidePanel()\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Hides panel on a direct selection change.\n\t\tthis.listenTo<DocumentSelectionChangeRangeEvent>( editor.model.document.selection, 'change:range', ( evt, data ) => {\n\t\t\tif ( data.directChange ) {\n\t\t\t\tthis._hidePanel();\n\t\t\t}\n\t\t} );\n\n\t\tthis.listenTo<EditorUIUpdateEvent>( editor.ui, 'update', () => this._updateButton() );\n\t\t// `low` priority is used because of https://github.com/ckeditor/ckeditor5-core/issues/133.\n\t\tthis.listenTo<ObservableChangeEvent>( editor, 'change:isReadOnly', () => this._updateButton(), { priority: 'low' } );\n\t\tthis.listenTo<ObservableChangeEvent>( editor.ui.focusTracker, 'change:isFocused', () => this._updateButton() );\n\n\t\t// Reposition button on resize.\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( this.buttonView, 'change:isVisible', ( evt, name, isVisible ) => {\n\t\t\tif ( isVisible ) {\n\t\t\t\t// Keep correct position of button and panel on window#resize.\n\t\t\t\tthis.buttonView.listenTo( window, 'resize', () => this._updateButton() );\n\t\t\t} else {\n\t\t\t\t// Stop repositioning button when is hidden.\n\t\t\t\tthis.buttonView.stopListening( window, 'resize' );\n\n\t\t\t\t// Hide the panel when the button disappears.\n\t\t\t\tthis._hidePanel();\n\t\t\t}\n\t\t} );\n\n\t\t// Register the toolbar so it becomes available for Alt+F10 and Esc navigation.\n\t\teditor.ui.addToolbar( this.toolbarView, {\n\t\t\tbeforeFocus: () => this._showPanel(),\n\t\t\tafterBlur: () => this._hidePanel()\n\t\t} );\n\t}\n\n\t/**\n\t * Fills the toolbar with its items based on the configuration.\n\t *\n\t * **Note:** This needs to be done after all plugins are ready.\n\t *\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst factory = this.editor.ui.componentFactory;\n\t\tconst config = this._blockToolbarConfig;\n\n\t\tthis.toolbarView.fillFromConfig( config, factory );\n\n\t\t// Hide panel before executing each button in the panel.\n\t\tfor ( const item of this.toolbarView.items ) {\n\t\t\titem.on<ButtonExecuteEvent>( 'execute', () => this._hidePanel( true ), { priority: 'high' } );\n\t\t}\n\n\t\tif ( !config.shouldNotGroupWhenFull ) {\n\t\t\tthis.listenTo( this.editor, 'ready', () => {\n\t\t\t\tconst editableElement = this.editor.ui.view.editable.element!;\n\n\t\t\t\t// Set #toolbarView's max-width just after the initialization and update it on the editable resize.\n\t\t\t\tthis._resizeObserver = new ResizeObserver( editableElement, () => {\n\t\t\t\t\tthis.toolbarView.maxWidth = this._getToolbarMaxWidth();\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tthis.panelView.destroy();\n\t\tthis.buttonView.destroy();\n\t\tthis.toolbarView.destroy();\n\n\t\tif ( this._resizeObserver ) {\n\t\t\tthis._resizeObserver.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Creates the {@link #toolbarView}.\n\t *\n\t * @private\n\t * @returns {module:ui/toolbar/toolbarview~ToolbarView}\n\t */\n\tprivate _createToolbarView() {\n\t\tconst t = this.editor.locale.t;\n\t\tconst shouldGroupWhenFull = !this._blockToolbarConfig.shouldNotGroupWhenFull;\n\t\tconst toolbarView = new ToolbarView( this.editor.locale, {\n\t\t\tshouldGroupWhenFull,\n\t\t\tisFloating: true\n\t\t} );\n\n\t\ttoolbarView.ariaLabel = t( 'Editor block content toolbar' );\n\n\t\t// When toolbar lost focus then panel should hide.\n\t\ttoolbarView.focusTracker.on( 'change:isFocused', ( evt, name, is ) => {\n\t\t\tif ( !is ) {\n\t\t\t\tthis._hidePanel();\n\t\t\t}\n\t\t} );\n\n\t\treturn toolbarView;\n\t}\n\n\t/**\n\t * Creates the {@link #panelView}.\n\t *\n\t * @private\n\t * @returns {module:ui/panel/balloon/balloonpanelview~BalloonPanelView}\n\t */\n\tprivate _createPanelView() {\n\t\tconst editor = this.editor;\n\t\tconst panelView = new BalloonPanelView( editor.locale );\n\n\t\tpanelView.content.add( this.toolbarView );\n\t\tpanelView.class = 'ck-toolbar-container';\n\t\teditor.ui.view.body.add( panelView );\n\t\teditor.ui.focusTracker.add( panelView.element! );\n\n\t\t// Close #panelView on `Esc` press.\n\t\tthis.toolbarView.keystrokes.set( 'Esc', ( evt, cancel ) => {\n\t\t\tthis._hidePanel( true );\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn panelView;\n\t}\n\n\t/**\n\t * Creates the {@link #buttonView}.\n\t *\n\t * @private\n\t * @returns {module:ui/toolbar/block/blockbuttonview~BlockButtonView}\n\t */\n\tprivate _createButtonView() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst buttonView = new BlockButtonView( editor.locale );\n\t\tconst bind = buttonView.bindTemplate;\n\n\t\tbuttonView.set( {\n\t\t\tlabel: t( 'Edit block' ),\n\t\t\ticon: pilcrow,\n\t\t\twithText: false\n\t\t} );\n\n\t\t// Note that this piece over here overrides the default mousedown logic in ButtonView\n\t\t// to make it work with BlockToolbar. See the implementation of the ButtonView class to learn more.\n\t\tbuttonView.extendTemplate( {\n\t\t\ton: {\n\t\t\t\tmousedown: bind.to( evt => {\n\t\t\t\t\t// On Safari we have to force the focus on a button on click as it's the only browser\n\t\t\t\t\t// that doesn't do that automatically. See #12115.\n\t\t\t\t\tif ( env.isSafari && this.panelView.isVisible ) {\n\t\t\t\t\t\tthis.toolbarView.focus();\n\t\t\t\t\t}\n\n\t\t\t\t\t// Workaround to #12184, see https://github.com/ckeditor/ckeditor5/issues/12184#issuecomment-1199147964.\n\t\t\t\t\tevt.preventDefault();\n\t\t\t\t} )\n\t\t\t}\n\t\t} );\n\n\t\t// Bind the panelView observable properties to the buttonView.\n\t\tbuttonView.bind( 'isOn' ).to( this.panelView, 'isVisible' );\n\t\tbuttonView.bind( 'tooltip' ).to( this.panelView, 'isVisible', isVisible => !isVisible );\n\n\t\t// Toggle the panelView upon buttonView#execute.\n\t\tthis.listenTo<ButtonExecuteEvent>( buttonView, 'execute', () => {\n\t\t\tif ( !this.panelView.isVisible ) {\n\t\t\t\tthis._showPanel();\n\t\t\t} else {\n\t\t\t\tthis._hidePanel( true );\n\t\t\t}\n\t\t} );\n\n\t\teditor.ui.view.body.add( buttonView );\n\t\teditor.ui.focusTracker.add( buttonView.element! );\n\n\t\treturn buttonView;\n\t}\n\n\t/**\n\t * Shows or hides the button.\n\t * When all the conditions for displaying the button are matched, it shows the button. Hides otherwise.\n\t *\n\t * @private\n\t */\n\tprivate _updateButton() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\n\t\t// Hides the button when the editor is not focused.\n\t\tif ( !editor.ui.focusTracker.isFocused ) {\n\t\t\tthis._hideButton();\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Hides the button when the editor switches to the read-only mode.\n\t\tif ( editor.isReadOnly ) {\n\t\t\tthis._hideButton();\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Get the first selected block, button will be attached to this element.\n\t\tconst modelTarget = Array.from( model.document.selection.getSelectedBlocks() )[ 0 ];\n\n\t\t// Hides the button when there is no enabled item in toolbar for the current block element.\n\t\tif ( !modelTarget || Array.from( this.toolbarView.items ).every( ( item: any ) => !item.isEnabled ) ) {\n\t\t\tthis._hideButton();\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Get DOM target element.\n\t\tconst domTarget = view.domConverter.mapViewToDom( editor.editing.mapper.toViewElement( modelTarget )! );\n\n\t\t// Show block button.\n\t\tthis.buttonView.isVisible = true;\n\n\t\t// Attach block button to target DOM element.\n\t\tthis._attachButtonToElement( domTarget as any );\n\n\t\t// When panel is opened then refresh it position to be properly aligned with block button.\n\t\tif ( this.panelView.isVisible ) {\n\t\t\tthis._showPanel();\n\t\t}\n\t}\n\n\t/**\n\t * Hides the button.\n\t *\n\t * @private\n\t */\n\tprivate _hideButton() {\n\t\tthis.buttonView.isVisible = false;\n\t}\n\n\t/**\n\t * Shows the {@link #toolbarView} attached to the {@link #buttonView}.\n\t * If the toolbar is already visible, then it simply repositions it.\n\t *\n\t * @private\n\t */\n\tprivate _showPanel() {\n\t\t// Usually, the only way to show the toolbar is by pressing the block button. It makes it impossible for\n\t\t// the toolbar to show up when the button is invisible (feature does not make sense for the selection then).\n\t\t// The toolbar navigation using Alt+F10 does not access the button but shows the panel directly using this method.\n\t\t// So we need to check whether this is possible first.\n\t\tif ( !this.buttonView.isVisible ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst wasVisible = this.panelView.isVisible;\n\n\t\t// So here's the thing: If there was no initial panelView#show() or these two were in different order, the toolbar\n\t\t// positioning will break in RTL editors. Weird, right? What you show know is that the toolbar\n\t\t// grouping works thanks to:\n\t\t//\n\t\t// * the ResizeObserver, which kicks in as soon as the toolbar shows up in DOM (becomes visible again).\n\t\t// * the observable ToolbarView#maxWidth, which triggers re-grouping when changed.\n\t\t//\n\t\t// Here are the possible scenarios:\n\t\t//\n\t\t// 1. (WRONG ❌) If the #maxWidth is set when the toolbar is invisible, it won't affect item grouping (no DOMRects, no grouping).\n\t\t//    Then, when panelView.pin() is called, the position of the toolbar will be calculated for the old\n\t\t//    items grouping state, and when finally ResizeObserver kicks in (hey, the toolbar is visible now, right?)\n\t\t//    it will group/ungroup some items and the length of the toolbar will change. But since in RTL the toolbar\n\t\t//    is attached on the right side and the positioning uses CSS \"left\", it will result in the toolbar shifting\n\t\t//    to the left and being displayed in the wrong place.\n\t\t// 2. (WRONG ❌) If the panelView.pin() is called first and #maxWidth set next, then basically the story repeats. The balloon\n\t\t//    calculates the position for the old toolbar grouping state, then the toolbar re-groups items and because\n\t\t//    it is positioned using CSS \"left\" it will move.\n\t\t// 3. (RIGHT ✅) We show the panel first (the toolbar does re-grouping but it does not matter), then the #maxWidth\n\t\t//    is set allowing the toolbar to re-group again and finally panelView.pin() does the positioning when the\n\t\t//    items grouping state is stable and final.\n\t\t//\n\t\t// https://github.com/ckeditor/ckeditor5/issues/6449, https://github.com/ckeditor/ckeditor5/issues/6575\n\t\tthis.panelView.show();\n\t\tthis.toolbarView.maxWidth = this._getToolbarMaxWidth();\n\n\t\tthis.panelView.pin( {\n\t\t\ttarget: this.buttonView.element!,\n\t\t\tlimiter: this.editor.ui.getEditableElement()\n\t\t} );\n\n\t\tif ( !wasVisible ) {\n\t\t\t( this.toolbarView.items.get( 0 ) as any ).focus();\n\t\t}\n\t}\n\n\t/**\n\t * Hides the {@link #toolbarView}.\n\t *\n\t * @private\n\t * @param {Boolean} [focusEditable=false] When `true`, the editable will be focused after hiding the panel.\n\t */\n\tprivate _hidePanel( focusEditable?: boolean ) {\n\t\tthis.panelView.isVisible = false;\n\n\t\tif ( focusEditable ) {\n\t\t\tthis.editor.editing.view.focus();\n\t\t}\n\t}\n\n\t/**\n\t * Attaches the {@link #buttonView} to the target block of content.\n\t *\n\t * @protected\n\t * @param {HTMLElement} targetElement Target element.\n\t */\n\tprivate _attachButtonToElement( targetElement: HTMLElement ) {\n\t\tconst contentStyles = window.getComputedStyle( targetElement );\n\n\t\tconst editableRect = new Rect( this.editor.ui.getEditableElement()! );\n\t\tconst contentPaddingTop = parseInt( contentStyles.paddingTop, 10 );\n\t\t// When line height is not an integer then thread it as \"normal\".\n\t\t// MDN says that 'normal' == ~1.2 on desktop browsers.\n\t\tconst contentLineHeight = parseInt( contentStyles.lineHeight, 10 ) || parseInt( contentStyles.fontSize, 10 ) * 1.2;\n\n\t\tconst position = getOptimalPosition( {\n\t\t\telement: this.buttonView.element!,\n\t\t\ttarget: targetElement,\n\t\t\tpositions: [\n\t\t\t\t( contentRect, buttonRect ) => {\n\t\t\t\t\tlet left;\n\n\t\t\t\t\tif ( this.editor.locale.uiLanguageDirection === 'ltr' ) {\n\t\t\t\t\t\tleft = editableRect.left - buttonRect.width;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tleft = editableRect.right;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn {\n\t\t\t\t\t\ttop: contentRect.top + contentPaddingTop + ( contentLineHeight - buttonRect.height ) / 2,\n\t\t\t\t\t\tleft\n\t\t\t\t\t};\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\tthis.buttonView.top = position.top;\n\t\tthis.buttonView.left = position.left;\n\t}\n\n\t/**\n\t * Gets the {@link #toolbarView} max-width, based on\n\t * editable width plus distance between farthest edge of the {@link #buttonView} and the editable.\n\t *\n\t * @private\n\t * @returns {String} maxWidth A maximum width that toolbar can have, in pixels.\n\t */\n\tprivate _getToolbarMaxWidth() {\n\t\tconst editableElement = this.editor.ui.view.editable.element!;\n\t\tconst editableRect = new Rect( editableElement );\n\t\tconst buttonRect = new Rect( this.buttonView.element! );\n\t\tconst isRTL = this.editor.locale.uiLanguageDirection === 'rtl';\n\t\tconst offset = isRTL ? ( buttonRect.left - editableRect.right ) + buttonRect.width : editableRect.left - buttonRect.left;\n\n\t\treturn toPx( editableRect.width + offset );\n\t}\n}\n\n/**\n * The block toolbar configuration. Used by the {@link module:ui/toolbar/block/blocktoolbar~BlockToolbar}\n * feature.\n *\n *\t\tconst config = {\n *\t\t\tblockToolbar: [ 'paragraph', 'heading1', 'heading2', 'bulletedList', 'numberedList' ]\n *\t\t};\n *\n * You can also use `'|'` to create a separator between groups of items:\n *\n *\t\tconst config = {\n *\t\t\tblockToolbar: [ 'paragraph', 'heading1', 'heading2', '|', 'bulletedList', 'numberedList' ]\n *\t\t};\n *\n * ## Configuring items grouping\n *\n * You can prevent automatic items grouping by setting the `shouldNotGroupWhenFull` option:\n *\n *\t\tconst config = {\n *\t\t\tblockToolbar: {\n *\t\t\t\titems: [ 'paragraph', 'heading1', 'heading2', '|', 'bulletedList', 'numberedList' ],\n *\t\t\t\tshouldNotGroupWhenFull: true\n *\t\t\t},\n *\t\t};\n *\n * Read more about configuring the main editor toolbar in {@link module:core/editor/editorconfig~EditorConfig#toolbar}.\n *\n * @member {Array.<String>|Object} module:core/editor/editorconfig~EditorConfig#blockToolbar\n */\n declare module '@ckeditor/ckeditor5-core' {\n\tinterface EditorConfig {\n\t\tblockToolbar?: ToolbarConfig;\n\t}\n\n\tinterface PluginsMap {\n\t\t[ BlockToolbar.pluginName ]: BlockToolbar;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module editor-balloon/ballooneditorui\n */\n\nimport {\n\tEditorUI,\n\ttype Editor,\n\ttype EditorUIReadyEvent,\n\ttype ElementApi\n} from 'ckeditor5/src/core';\nimport { enablePlaceholder } from 'ckeditor5/src/engine';\n\nimport type BalloonEditorUIView from './ballooneditoruiview';\n\n/**\n * The balloon editor UI class.\n */\nexport default class BalloonEditorUI extends EditorUI {\n\t/**\n\t * The main (top–most) view of the editor UI.\n\t */\n\tpublic readonly view: BalloonEditorUIView;\n\n\t/**\n\t * Creates an instance of the balloon editor UI class.\n\t *\n\t * @param editor The editor instance.\n\t * @param view The view of the UI.\n\t */\n\tconstructor( editor: Editor, view: BalloonEditorUIView ) {\n\t\tsuper( editor );\n\n\t\tthis.view = view;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override get element(): HTMLElement | null {\n\t\treturn this.view.editable.element;\n\t}\n\n\t/**\n\t * Initializes the UI.\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = this.view;\n\t\tconst editingView = editor.editing.view;\n\t\tconst editable = view.editable;\n\t\tconst editingRoot = editingView.document.getRoot()!;\n\n\t\t// The editable UI and editing root should share the same name. Then name is used\n\t\t// to recognize the particular editable, for instance in ARIA attributes.\n\t\teditable.name = editingRoot.rootName;\n\n\t\tview.render();\n\n\t\t// The editable UI element in DOM is available for sure only after the editor UI view has been rendered.\n\t\t// But it can be available earlier if a DOM element has been passed to BalloonEditor.create().\n\t\tconst editableElement = editable.element!;\n\n\t\t// Register the editable UI view in the editor. A single editor instance can aggregate multiple\n\t\t// editable areas (roots) but the balloon editor has only one.\n\t\tthis.setEditableElement( editable.name, editableElement );\n\n\t\t// Let the editable UI element respond to the changes in the global editor focus\n\t\t// tracker. It has been added to the same tracker a few lines above but, in reality, there are\n\t\t// many focusable areas in the editor, like balloons, toolbars or dropdowns and as long\n\t\t// as they have focus, the editable should act like it is focused too (although technically\n\t\t// it isn't), e.g. by setting the proper CSS class, visually announcing focus to the user.\n\t\t// Doing otherwise will result in editable focus styles disappearing, once e.g. the\n\t\t// toolbar gets focused.\n\t\teditable.bind( 'isFocused' ).to( this.focusTracker );\n\n\t\t// Bind the editable UI element to the editing view, making it an end– and entry–point\n\t\t// of the editor's engine. This is where the engine meets the UI.\n\t\teditingView.attachDomRoot( editableElement );\n\n\t\tthis._initPlaceholder();\n\t\tthis.fire<EditorUIReadyEvent>( 'ready' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tconst view = this.view;\n\t\tconst editingView = this.editor.editing.view;\n\n\t\teditingView.detachDomRoot( view.editable.name! );\n\t\tview.destroy();\n\t}\n\n\t/**\n\t * Enable the placeholder text on the editing root, if any was configured.\n\t */\n\tprivate _initPlaceholder(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst editingRoot = editingView.document.getRoot()!;\n\t\tconst sourceElement = ( editor as Editor & ElementApi ).sourceElement;\n\n\t\tconst placeholderText = editor.config.get( 'placeholder' ) ||\n\t\t\tsourceElement && sourceElement.tagName.toLowerCase() === 'textarea' && sourceElement.getAttribute( 'placeholder' );\n\n\t\tif ( placeholderText ) {\n\t\t\tenablePlaceholder( {\n\t\t\t\tview: editingView,\n\t\t\t\telement: editingRoot,\n\t\t\t\ttext: placeholderText,\n\t\t\t\tisDirectHost: false,\n\t\t\t\tkeepOnFocus: true\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module editor-balloon/ballooneditoruiview\n */\n\nimport { EditorUIView, InlineEditableUIView } from 'ckeditor5/src/ui';\nimport type { Locale } from 'ckeditor5/src/utils';\nimport type { View } from 'ckeditor5/src/engine';\n\n/**\n * Contextual editor UI view. Uses the {@link module:ui/editableui/inline/inlineeditableuiview~InlineEditableUIView}.\n */\nexport default class BalloonEditorUIView extends EditorUIView {\n\t/**\n\t * Editable UI view.\n\t */\n\tpublic readonly editable: InlineEditableUIView;\n\n\t/**\n\t * Creates an instance of the balloon editor UI view.\n\t *\n\t * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param editingView The editing view instance this view is related to.\n\t * @param editableElement The editable element. If not specified, it will be automatically created by\n\t * {@link module:ui/editableui/editableuiview~EditableUIView}. Otherwise, the given element will be used.\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\teditingView: View,\n\t\teditableElement?: HTMLElement\n\t) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\tthis.editable = new InlineEditableUIView( locale, editingView, editableElement, {\n\t\t\tlabel: editableView => {\n\t\t\t\treturn t( 'Rich Text Editor. Editing area: %0', editableView.name! );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.registerChild( this.editable );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module editor-balloon/ballooneditor\n */\n\nimport {\n\tEditor,\n\tDataApiMixin,\n\tElementApiMixin,\n\tattachToForm,\n\tsecureSourceElement,\n\ttype EditorConfig,\n\ttype EditorReadyEvent\n} from 'ckeditor5/src/core';\nimport { BalloonToolbar } from 'ckeditor5/src/ui';\nimport { CKEditorError, getDataFromElement } from 'ckeditor5/src/utils';\n\nimport BalloonEditorUI from './ballooneditorui';\nimport BalloonEditorUIView from './ballooneditoruiview';\n\nimport { isElement as _isElement } from 'lodash-es';\n\n/**\n * The {@glink installation/getting-started/predefined-builds#balloon-editor balloon editor}\n * implementation (Medium-like editor).\n * It uses an inline editable and a toolbar based on the {@link module:ui/toolbar/balloon/balloontoolbar~BalloonToolbar}.\n * See the {@glink examples/builds/balloon-editor demo}.\n *\n * In order to create a balloon editor instance, use the static\n * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`} method.\n *\n * # Balloon editor and balloon build\n *\n * The balloon editor can be used directly from source (if you installed the\n * [`@ckeditor/ckeditor5-editor-balloon`](https://www.npmjs.com/package/@ckeditor/ckeditor5-editor-balloon) package)\n * but it is also available in the {@glink installation/getting-started/predefined-builds#balloon-editor balloon build}.\n *\n * {@glink installation/getting-started/predefined-builds Builds}\n * are ready-to-use editors with plugins bundled in. When using the editor from\n * source you need to take care of loading all plugins by yourself\n * (through the {@link module:core/editor/editorconfig~EditorConfig#plugins `config.plugins`} option).\n * Using the editor from source gives much better flexibility and allows easier customization.\n *\n * Read more about initializing the editor from source or as a build in\n * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`}.\n */\nexport default class BalloonEditor extends DataApiMixin( ElementApiMixin( Editor ) ) {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly ui: BalloonEditorUI;\n\n\t/**\n\t * Creates an instance of the balloon editor.\n\t *\n\t * **Note:** do not use the constructor to create editor instances. Use the static\n\t * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`} method instead.\n\t *\n\t * @param sourceElementOrData The DOM element that will be the source for the created editor\n\t * (on which the editor will be initialized) or initial data for the editor. For more information see\n\t * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`}.\n\t * @param config The editor configuration.\n\t */\n\tprotected constructor( sourceElementOrData: HTMLElement | string, config: EditorConfig = {} ) {\n\t\t// If both `config.initialData` is set and initial data is passed as the constructor parameter, then throw.\n\t\tif ( !isElement( sourceElementOrData ) && config.initialData !== undefined ) {\n\t\t\t// Documented in core/editor/editorconfig.jsdoc.\n\t\t\t// eslint-disable-next-line ckeditor5-rules/ckeditor-error-message\n\t\t\tthrow new CKEditorError( 'editor-create-initial-data', null );\n\t\t}\n\n\t\tsuper( config );\n\n\t\tif ( this.config.get( 'initialData' ) === undefined ) {\n\t\t\tthis.config.set( 'initialData', getInitialData( sourceElementOrData ) );\n\t\t}\n\n\t\tif ( isElement( sourceElementOrData ) ) {\n\t\t\tthis.sourceElement = sourceElementOrData;\n\t\t\tsecureSourceElement( this );\n\t\t}\n\n\t\tconst plugins = this.config.get( 'plugins' )!;\n\t\tplugins.push( BalloonToolbar );\n\n\t\tthis.config.set( 'plugins', plugins );\n\n\t\tthis.config.define( 'balloonToolbar', this.config.get( 'toolbar' ) );\n\n\t\tthis.model.document.createRoot();\n\n\t\tconst view = new BalloonEditorUIView( this.locale, this.editing.view, this.sourceElement );\n\t\tthis.ui = new BalloonEditorUI( this, view );\n\n\t\tattachToForm( this );\n\t}\n\n\t/**\n\t * Destroys the editor instance, releasing all resources used by it.\n\t *\n\t * Updates the original editor element with the data if the\n\t * {@link module:core/editor/editorconfig~EditorConfig#updateSourceElementOnDestroy `updateSourceElementOnDestroy`}\n\t * configuration option is set to `true`.\n\t */\n\tpublic override destroy(): Promise<unknown> {\n\t\t// Cache the data, then destroy.\n\t\t// It's safe to assume that the model->view conversion will not work after super.destroy().\n\t\tconst data = this.getData();\n\n\t\tthis.ui.destroy();\n\n\t\treturn super.destroy()\n\t\t\t.then( () => {\n\t\t\t\tif ( this.sourceElement ) {\n\t\t\t\t\tthis.updateSourceElement( data );\n\t\t\t\t}\n\t\t\t} );\n\t}\n\n\t/**\n\t * Creates a new balloon editor instance.\n\t *\n\t * There are three general ways how the editor can be initialized.\n\t *\n\t * # Using an existing DOM element (and loading data from it)\n\t *\n\t * You can initialize the editor using an existing DOM element:\n\t *\n\t * ```ts\n\t * BalloonEditor\n\t * \t.create( document.querySelector( '#editor' ) )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t * \t} )\n\t * \t.catch( err => {\n\t * \t\tconsole.error( err.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * The element's content will be used as the editor data and the element will become the editable element.\n\t *\n\t * # Creating a detached editor\n\t *\n\t * Alternatively, you can initialize the editor by passing the initial data directly as a string.\n\t * In this case, the editor will render an element that must be inserted into the DOM for the editor to work properly:\n\t *\n\t * ```ts\n\t * BalloonEditor\n\t * \t.create( '<p>Hello world!</p>' )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t *\n\t * \t\t// Initial data was provided so the editor UI element needs to be added manually to the DOM.\n\t * \t\tdocument.body.appendChild( editor.ui.element );\n\t * \t} )\n\t * \t.catch( err => {\n\t * \t\tconsole.error( err.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * This lets you dynamically append the editor to your web page whenever it is convenient for you. You may use this method if your\n\t * web page content is generated on the client side and the DOM structure is not ready at the moment when you initialize the editor.\n\t *\n\t * # Using an existing DOM element (and data provided in `config.initialData`)\n\t *\n\t * You can also mix these two ways by providing a DOM element to be used and passing the initial data through the configuration:\n\t *\n\t * ```ts\n\t * BalloonEditor\n\t * \t.create( document.querySelector( '#editor' ), {\n\t * \t\tinitialData: '<h2>Initial data</h2><p>Foo bar.</p>'\n\t * \t} )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t * \t} )\n\t * \t.catch( err => {\n\t * \t\tconsole.error( err.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * This method can be used to initialize the editor on an existing element with the specified content in case if your integration\n\t * makes it difficult to set the content of the source element.\n\t *\n\t * Note that an error will be thrown if you pass the initial data both as the first parameter and also in the configuration.\n\t *\n\t * # Configuring the editor\n\t *\n\t * See the {@link module:core/editor/editorconfig~EditorConfig editor configuration documentation} to learn more about\n\t * customizing plugins, toolbar and more.\n\t *\n\t * # Using the editor from source\n\t *\n\t * The code samples listed in the previous sections of this documentation assume that you are using an\n\t * {@glink installation/getting-started/predefined-builds editor build} (for example – `@ckeditor/ckeditor5-build-balloon`).\n\t *\n\t * If you want to use the balloon editor from source (`@ckeditor/ckeditor5-editor-balloon/src/ballooneditor`),\n\t * you need to define the list of\n\t * {@link module:core/editor/editorconfig~EditorConfig#plugins plugins to be initialized} and\n\t * {@link module:core/editor/editorconfig~EditorConfig#toolbar toolbar items}. Read more about using the editor from\n\t * source in the {@glink installation/advanced/alternative-setups/integrating-from-source dedicated guide}.\n\t *\n\t * @param sourceElementOrData The DOM element that will be the source for the created editor\n\t * or the editor's initial data.\n\t *\n\t * If a DOM element is passed, its content will be automatically loaded to the editor upon initialization.\n\t * The editor data will be set back to the original element once the editor is destroyed only if the\n\t * {@link module:core/editor/editorconfig~EditorConfig#updateSourceElementOnDestroy updateSourceElementOnDestroy}\n\t * option is set to `true`.\n\t *\n\t * If the initial data is passed, a detached editor will be created. In this case you need to insert it into the DOM manually.\n\t * It is available under the {@link module:editor-balloon/ballooneditorui~BalloonEditorUI#element `editor.ui.element`} property.\n\t *\n\t * @param config The editor configuration.\n\t * @returns A promise resolved once the editor is ready. The promise resolves with the created editor instance.\n\t */\n\tpublic static create( sourceElementOrData: HTMLElement | string, config: EditorConfig = {} ): Promise<BalloonEditor> {\n\t\treturn new Promise( resolve => {\n\t\t\tif ( isElement( sourceElementOrData ) && sourceElementOrData.tagName === 'TEXTAREA' ) {\n\t\t\t\t// Documented in core/editor/editor.js\n\t\t\t\t// eslint-disable-next-line ckeditor5-rules/ckeditor-error-message\n\t\t\t\tthrow new CKEditorError( 'editor-wrong-element', null );\n\t\t\t}\n\n\t\t\tconst editor = new this( sourceElementOrData, config );\n\n\t\t\tresolve(\n\t\t\t\teditor.initPlugins()\n\t\t\t\t\t.then( () => editor.ui.init() )\n\t\t\t\t\t.then( () => editor.data.init( editor.config.get( 'initialData' )! ) )\n\t\t\t\t\t.then( () => editor.fire<EditorReadyEvent>( 'ready' ) )\n\t\t\t\t\t.then( () => editor )\n\t\t\t);\n\t\t} );\n\t}\n}\n\nfunction getInitialData( sourceElementOrData: HTMLElement | string ): string {\n\treturn isElement( sourceElementOrData ) ? getDataFromElement( sourceElementOrData ) : sourceElementOrData;\n}\n\nfunction isElement( value: any ): value is Element {\n\treturn _isElement( value );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals HTMLTextAreaElement */\n\n/**\n * @module utils/dom/getdatafromelement\n */\n\n/**\n * Gets data from a given source element.\n *\n * @param el The element from which the data will be retrieved.\n * @returns The data string.\n */\nexport default function getDataFromElement( el: HTMLElement ): string {\n\tif ( el instanceof HTMLTextAreaElement ) {\n\t\treturn el.value;\n\t}\n\n\treturn el.innerHTML;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Editor, EditorDestroyEvent } from '../editor';\nimport type { ElementApi } from './elementapimixin';\n\n/**\n * @module core/editor/utils/securesourceelement\n */\n\n/**\n * Marks the source element on which the editor was initialized. This prevents other editor instances from using this element.\n *\n * Running multiple editor instances on the same source element causes various issues and it is\n * crucial this helper is called as soon as the source element is known to prevent collisions.\n *\n * @param {module:core/editor/editor~Editor} editor Editor instance.\n */\nexport default function secureSourceElement( editor: Editor & ElementApi ): void {\n\tconst sourceElement: any = editor.sourceElement;\n\n\t// If the editor was initialized without specifying an element, we don't need to secure anything.\n\tif ( !sourceElement ) {\n\t\treturn;\n\t}\n\n\tif ( sourceElement.ckeditorInstance ) {\n\t\t/**\n\t\t * A DOM element used to create the editor (e.g.\n\t\t * {@link module:editor-inline/inlineeditor~InlineEditor.create `InlineEditor.create()`})\n\t\t * has already been used to create another editor instance. Make sure each editor is\n\t\t * created with an unique DOM element.\n\t\t *\n\t\t * @error editor-source-element-already-used\n\t\t * @param {HTMLElement} element DOM element that caused the collision.\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'editor-source-element-already-used',\n\t\t\teditor\n\t\t);\n\t}\n\n\tsourceElement.ckeditorInstance = editor;\n\n\teditor.once<EditorDestroyEvent>( 'destroy', () => {\n\t\tdelete sourceElement.ckeditorInstance;\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { isFunction } from 'lodash-es';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Editor, EditorDestroyEvent } from '../editor';\nimport type { ElementApi } from './elementapimixin';\n\n/**\n * @module core/editor/utils/attachtoform\n */\n\n/**\n * Checks if the editor is initialized on a `<textarea>` element that belongs to a form. If yes, it updates the editor's element\n * content before submitting the form.\n *\n * This helper requires the {@link module:core/editor/utils/elementapimixin~ElementApi ElementApi interface}.\n *\n * @param {module:core/editor/editor~Editor} editor Editor instance.\n */\nexport default function attachToForm( editor: Editor & ElementApi ): void {\n\tif ( !isFunction( editor.updateSourceElement ) ) {\n\t\t/**\n\t\t * The editor passed to `attachToForm()` must implement the\n\t\t * {@link module:core/editor/utils/elementapimixin~ElementApi} interface.\n\t\t *\n\t\t * @error attachtoform-missing-elementapi-interface\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'attachtoform-missing-elementapi-interface',\n\t\t\teditor\n\t\t);\n\t}\n\n\tconst sourceElement = editor.sourceElement;\n\n\t// Only when replacing a textarea which is inside of a form element.\n\tif ( isTextArea( sourceElement ) && sourceElement.form ) {\n\t\tlet originalSubmit: () => void;\n\t\tconst form = sourceElement.form;\n\t\tconst onSubmit = () => editor.updateSourceElement();\n\n\t\t// Replace the original form#submit() to call a custom submit function first.\n\t\t// Check if #submit is a function because the form might have an input named \"submit\".\n\t\tif ( isFunction( form.submit ) ) {\n\t\t\toriginalSubmit = form.submit;\n\n\t\t\tform.submit = () => {\n\t\t\t\tonSubmit();\n\t\t\t\toriginalSubmit.apply( form );\n\t\t\t};\n\t\t}\n\n\t\t// Update the replaced textarea with data before each form#submit event.\n\t\tform.addEventListener( 'submit', onSubmit );\n\n\t\t// Remove the submit listener and revert the original submit method on\n\t\t// editor#destroy.\n\t\teditor.on<EditorDestroyEvent>( 'destroy', () => {\n\t\t\tform.removeEventListener( 'submit', onSubmit );\n\n\t\t\tif ( originalSubmit ) {\n\t\t\t\tform.submit = originalSubmit;\n\t\t\t}\n\t\t} );\n\t}\n}\n\nfunction isTextArea( sourceElement: HTMLElement | undefined ): sourceElement is HTMLTextAreaElement {\n\treturn !!sourceElement && sourceElement.tagName.toLowerCase() === 'textarea';\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./responsiveform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./findandreplaceform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/ui/findandreplaceformview\n */\n\nimport {\n\tView,\n\tButtonView,\n\tFormHeaderView,\n\tLabeledFieldView,\n\n\tModel,\n\tFocusCycler,\n\tcreateLabeledInputText,\n\tsubmitHandler,\n\tViewCollection,\n\tinjectCssTransitionDisabler,\n\n\tcreateDropdown,\n\taddListToDropdown\n} from 'ckeditor5/src/ui';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\tCollection,\n\tRect,\n\tisVisible\n} from 'ckeditor5/src/utils';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\nimport '../../theme/findandreplaceform.css';\n\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport previousArrow from '@ckeditor/ckeditor5-ui/theme/icons/previous-arrow.svg';\nimport { icons } from 'ckeditor5/src/core';\n\n/**\n * The find and replace form view class.\n *\n * See {@link module:find-and-replace/ui/findandreplaceformview~FindAndReplaceFormView}.\n *\n * @extends module:ui/view~View\n */\nexport default class FindAndReplaceFormView extends View {\n\t/**\n\t * Creates a view of find and replace form.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The localization services instance.\n\t */\n\tconstructor( locale ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\t/**\n\t\t * Stores the number of matched search results.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number} #matchCount\n\t\t */\n\t\tthis.set( 'matchCount', 0 );\n\n\t\t/**\n\t\t * The offset of currently highlighted search result in {@link #matchCount matched results}.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number|null} #highlightOffset\n\t\t */\n\t\tthis.set( 'highlightOffset', 0 );\n\n\t\t/**\n\t\t * `true` when the search params (find text, options) has been changed by the user since\n\t\t * the last time find was executed. `false` otherwise.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isDirty\n\t\t */\n\t\tthis.set( 'isDirty', false );\n\n\t\t/**\n\t\t * A live object with the aggregated `isEnabled` states of editor commands related to find and\n\t\t * replace. For instance, it may look as follows:\n\t\t *\n\t\t *\t\t{\n\t\t *\t\t\tfindNext: true,\n\t\t *\t\t\tfindPrevious: true,\n\t\t *\t\t\treplace: false,\n\t\t *\t\t\treplaceAll: false\n\t\t *\t\t}\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Object} #_areCommandsEnabled\n\t\t */\n\t\tthis.set( '_areCommandsEnabled', {} );\n\n\t\t/**\n\t\t * The content of the counter label displaying the index of the current highlighted match\n\t\t * on top of the find input, for instance \"3 of 50\".\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {String} #_resultsCounterText\n\t\t */\n\t\tthis.set( '_resultsCounterText', '' );\n\n\t\t/**\n\t\t * The flag reflecting the state of the \"Match case\" switch button in the search options\n\t\t * dropdown.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #_matchCase\n\t\t */\n\t\tthis.set( '_matchCase', false );\n\n\t\t/**\n\t\t * The flag reflecting the state of the \"Whole words only\" switch button in the search options\n\t\t * dropdown.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #_wholeWordsOnly\n\t\t */\n\t\tthis.set( '_wholeWordsOnly', false );\n\n\t\t/**\n\t\t * This flag is set `true` when some matches were found and the user didn't change the search\n\t\t * params (text to find, options) yet. This is only possible immediately after hitting the \"Find\" button.\n\t\t * `false` when there were no matches (see {@link #matchCount}) or the user changed the params (see {@link #isDirty}).\n\t\t *\n\t\t * It is used to control the enabled state of the replace UI (input and buttons); replacing text is only possible\n\t\t * if this flag is `true`.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #_searchResultsFound\n\t\t */\n\t\tthis.bind( '_searchResultsFound' ).to(\n\t\t\tthis, 'matchCount',\n\t\t\tthis, 'isDirty',\n\t\t\t( matchCount, isDirty ) => {\n\t\t\t\treturn matchCount > 0 && !isDirty;\n\t\t\t}\n\t\t);\n\n\t\t/**\n\t\t * The find in text input view that stores the searched string.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/labeledfield/labeledfieldview~LabeledFieldView}\n\t\t */\n\t\tthis._findInputView = this._createInputField( t( 'Find in text…' ) );\n\n\t\t/**\n\t\t * The replace input view.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/labeledfield/labeledfieldview~LabeledFieldView}\n\t\t */\n\t\tthis._replaceInputView = this._createInputField( t( 'Replace with…' ) );\n\n\t\t/**\n\t\t * The find button view that initializes the search process.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis._findButtonView = this._createButton( {\n\t\t\tlabel: t( 'Find' ),\n\t\t\tclass: 'ck-button-find ck-button-action',\n\t\t\twithText: true\n\t\t} );\n\n\t\t/**\n\t\t * The find previous button view.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis._findPrevButtonView = this._createButton( {\n\t\t\tlabel: t( 'Previous result' ),\n\t\t\tclass: 'ck-button-prev',\n\t\t\ticon: previousArrow,\n\t\t\tkeystroke: 'Shift+F3',\n\t\t\ttooltip: true\n\t\t} );\n\n\t\t/**\n\t\t * The find next button view.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis._findNextButtonView = this._createButton( {\n\t\t\tlabel: t( 'Next result' ),\n\t\t\tclass: 'ck-button-next',\n\t\t\ticon: previousArrow,\n\t\t\tkeystroke: 'F3',\n\t\t\ttooltip: true\n\t\t} );\n\n\t\t/**\n\t\t * The find options dropdown.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/dropdown/dropdownview~DropdownView}\n\t\t */\n\t\tthis._optionsDropdown = this._createOptionsDropdown();\n\n\t\t/**\n\t\t * The replace button view.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis._replaceButtonView = this._createButton( {\n\t\t\tlabel: t( 'Replace' ),\n\t\t\tclass: 'ck-button-replace',\n\t\t\twithText: true\n\t\t} );\n\n\t\t/**\n\t\t * The replace all button view.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis._replaceAllButtonView = this._createButton( {\n\t\t\tlabel: t( 'Replace all' ),\n\t\t\tclass: 'ck-button-replaceall',\n\t\t\twithText: true\n\t\t} );\n\n\t\t/**\n\t\t * The fieldset aggregating the find UI.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/view/view~View}\n\t\t */\n\t\tthis._findFieldsetView = this._createFindFieldset();\n\n\t\t/**\n\t\t * The fieldset aggregating the replace UI.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:ui/view/view~View}\n\t\t */\n\t\tthis._replaceFieldsetView = this._createReplaceFieldset();\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis._focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis._keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * A collection of views that can be focused in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Helps cycling over {@link #_focusables} in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this._focusTracker,\n\t\t\tkeystrokeHandler: this._keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-find-and-replace-form'\n\t\t\t\t],\n\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tnew FormHeaderView( locale, {\n\t\t\t\t\tlabel: t( 'Find and replace' )\n\t\t\t\t} ),\n\t\t\t\tthis._findFieldsetView,\n\t\t\t\tthis._replaceFieldsetView\n\t\t\t]\n\t\t} );\n\n\t\tinjectCssTransitionDisabler( this );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\tsubmitHandler( { view: this } );\n\n\t\tthis._initFocusCycling();\n\t\tthis._initKeystrokeHandling();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis._focusTracker.destroy();\n\t\tthis._keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist {@link #_focusables} in the form.\n\t */\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Resets the form before re-appearing.\n\t *\n\t * It clears error messages, hides the match counter and disables the replace feature\n\t * until the next hit of the \"Find\" button.\n\t *\n\t * **Note**: It does not reset inputs and options, though. This way the form works better in editors with\n\t * disappearing toolbar (e.g. BalloonEditor): hiding the toolbar by accident (together with the find and replace UI)\n\t * does not require filling the entire form again.\n\t */\n\treset() {\n\t\tthis._findInputView.errorText = null;\n\t\tthis.isDirty = true;\n\t}\n\n\t/**\n\t * Returns the value of the find input.\n\t *\n\t * @protected\n\t * @returns {String}\n\t */\n\tget _textToFind() {\n\t\treturn this._findInputView.fieldView.element.value;\n\t}\n\n\t/**\n\t * Returns the value of the replace input.\n\t *\n\t * @protected\n\t * @returns {String}\n\t */\n\tget _textToReplace() {\n\t\treturn this._replaceInputView.fieldView.element.value;\n\t}\n\n\t/**\n\t * Configures and returns the `<fieldset>` aggregating all find controls.\n\t *\n\t * @private\n\t * @returns {module:ui/view~View}\n\t */\n\t_createFindFieldset() {\n\t\tconst locale = this.locale;\n\t\tconst fieldsetView = new View( locale );\n\n\t\t// Typing in the find field invalidates all previous results (the form is \"dirty\").\n\t\tthis._findInputView.fieldView.on( 'input', () => {\n\t\t\tthis.isDirty = true;\n\t\t} );\n\n\t\tthis._findButtonView.on( 'execute', this._onFindButtonExecute.bind( this ) );\n\n\t\t// Pressing prev/next buttons fires related event on the form.\n\t\tthis._findPrevButtonView.delegate( 'execute' ).to( this, 'findPrevious' );\n\t\tthis._findNextButtonView.delegate( 'execute' ).to( this, 'findNext' );\n\n\t\t// Prev/next buttons will be disabled when related editor command gets disabled.\n\t\tthis._findPrevButtonView.bind( 'isEnabled' ).to( this, '_areCommandsEnabled', ( { findPrevious } ) => findPrevious );\n\t\tthis._findNextButtonView.bind( 'isEnabled' ).to( this, '_areCommandsEnabled', ( { findNext } ) => findNext );\n\n\t\tthis._injectFindResultsCounter();\n\n\t\tfieldsetView.setTemplate( {\n\t\t\ttag: 'fieldset',\n\t\t\tattributes: {\n\t\t\t\tclass: [ 'ck', 'ck-find-and-replace-form__find' ]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis._findInputView,\n\t\t\t\tthis._findButtonView,\n\t\t\t\tthis._findPrevButtonView,\n\t\t\t\tthis._findNextButtonView\n\t\t\t]\n\t\t} );\n\n\t\treturn fieldsetView;\n\t}\n\n\t/**\n\t * The action performed when the {@link #_findButtonView} is pressed.\n\t *\n\t * @private\n\t */\n\t_onFindButtonExecute() {\n\t\t// When hitting \"Find\" in an empty input, an error should be displayed.\n\t\t// Also, if the form was \"dirty\", it should remain so.\n\t\tif ( !this._textToFind ) {\n\t\t\tconst t = this.t;\n\n\t\t\tthis._findInputView.errorText = t( 'Text to find must not be empty.' );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Hitting \"Find\" automatically clears the dirty state.\n\t\tthis.isDirty = false;\n\n\t\tthis.fire( 'findNext', {\n\t\t\tsearchText: this._textToFind,\n\t\t\tmatchCase: this._matchCase,\n\t\t\twholeWords: this._wholeWordsOnly\n\t\t} );\n\t}\n\n\t/**\n\t * Configures an injects the find results counter displaying a \"N of M\" label of the {@link #_findInputView}.\n\t *\n\t * @private\n\t */\n\t_injectFindResultsCounter() {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst bind = this.bindTemplate;\n\t\tconst resultsCounterView = new View( locale );\n\n\t\tthis.bind( '_resultsCounterText' ).to( this, 'highlightOffset', this, 'matchCount',\n\t\t\t( highlightOffset, matchCount ) => t( '%0 of %1', [ highlightOffset, matchCount ] )\n\t\t);\n\n\t\tresultsCounterView.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-results-counter',\n\t\t\t\t\t// The counter only makes sense when the field text corresponds to search results in the editing.\n\t\t\t\t\tbind.if( 'isDirty', 'ck-hidden' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( '_resultsCounterText' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// The whole idea is that when the text of the counter changes, its width also increases/decreases and\n\t\t// it consumes more or less space over the input. The input, on the other hand, should adjust it's right\n\t\t// padding so its *entire* text always remains visible and available to the user.\n\t\tconst updateFindInputPadding = () => {\n\t\t\tconst inputElement = this._findInputView.fieldView.element;\n\n\t\t\t// Don't adjust the padding if the input (also: counter) were not rendered or not inserted into DOM yet.\n\t\t\tif ( !inputElement || !isVisible( inputElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst counterWidth = new Rect( resultsCounterView.element ).width;\n\t\t\tconst paddingPropertyName = locale.uiLanguageDirection === 'ltr' ? 'paddingRight' : 'paddingLeft';\n\n\t\t\tif ( !counterWidth ) {\n\t\t\t\tinputElement.style[ paddingPropertyName ] = null;\n\t\t\t} else {\n\t\t\t\tinputElement.style[ paddingPropertyName ] = `calc( 2 * var(--ck-spacing-standard) + ${ counterWidth }px )`;\n\t\t\t}\n\t\t};\n\n\t\t// Adjust the input padding when the text of the counter changes, for instance \"1 of 200\" is narrower than \"123 of 200\".\n\t\t// Using \"low\" priority to let the text be set by the template binding first.\n\t\tthis.on( 'change:_resultsCounterText', updateFindInputPadding, { priority: 'low' } );\n\n\t\t// Adjust the input padding when the counter shows or hides. When hidden, there should be no padding. When it shows, the\n\t\t// padding should be set according to the text of the counter.\n\t\t// Using \"low\" priority to let the text be set by the template binding first.\n\t\tthis.on( 'change:isDirty', updateFindInputPadding, { priority: 'low' } );\n\n\t\t// Put the counter element next to the <input> in the find field.\n\t\tthis._findInputView.template.children[ 0 ].children.push( resultsCounterView );\n\t}\n\n\t/**\n\t * Configures and returns the `<fieldset>` aggregating all replace controls.\n\t *\n\t * @private\n\t * @returns {module:ui/view~View}\n\t */\n\t_createReplaceFieldset() {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst fieldsetView = new View( locale );\n\n\t\tthis._replaceButtonView.bind( 'isEnabled' ).to(\n\t\t\tthis, '_areCommandsEnabled',\n\t\t\tthis, '_searchResultsFound',\n\t\t\t( { replace }, resultsFound ) => replace && resultsFound );\n\n\t\tthis._replaceAllButtonView.bind( 'isEnabled' ).to(\n\t\t\tthis, '_areCommandsEnabled',\n\t\t\tthis, '_searchResultsFound',\n\t\t\t( { replaceAll }, resultsFound ) => replaceAll && resultsFound );\n\n\t\tthis._replaceInputView.bind( 'isEnabled' ).to(\n\t\t\tthis, '_areCommandsEnabled',\n\t\t\tthis, '_searchResultsFound',\n\t\t\t( { replace }, resultsFound ) => replace && resultsFound );\n\n\t\tthis._replaceInputView.bind( 'infoText' ).to(\n\t\t\tthis._replaceInputView, 'isEnabled',\n\t\t\tthis._replaceInputView, 'isFocused',\n\t\t\t( isEnabled, isFocused ) => {\n\t\t\t\tif ( isEnabled || !isFocused ) {\n\t\t\t\t\treturn '';\n\t\t\t\t}\n\n\t\t\t\treturn t( 'Tip: Find some text first in order to replace it.' );\n\t\t\t} );\n\n\t\tthis._replaceButtonView.on( 'execute', () => {\n\t\t\tthis.fire( 'replace', {\n\t\t\t\tsearchText: this._textToFind,\n\t\t\t\treplaceText: this._textToReplace\n\t\t\t} );\n\t\t} );\n\n\t\tthis._replaceAllButtonView.on( 'execute', () => {\n\t\t\tthis.fire( 'replaceAll', {\n\t\t\t\tsearchText: this._textToFind,\n\t\t\t\treplaceText: this._textToReplace\n\t\t\t} );\n\n\t\t\tthis.focus();\n\t\t} );\n\n\t\tfieldsetView.setTemplate( {\n\t\t\ttag: 'fieldset',\n\t\t\tattributes: {\n\t\t\t\tclass: [ 'ck', 'ck-find-and-replace-form__replace' ]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis._replaceInputView,\n\t\t\t\tthis._optionsDropdown,\n\t\t\t\tthis._replaceButtonView,\n\t\t\t\tthis._replaceAllButtonView\n\t\t\t]\n\t\t} );\n\n\t\treturn fieldsetView;\n\t}\n\n\t/**\n\t * Creates, configures and returns and instance of a dropdown allowing users to narrow\n\t * the search criteria down. The dropdown has a list with switch buttons for each option.\n\t *\n\t * @private\n\t * @returns {module:ui/dropdown/dropdownview~DropdownView}\n\t */\n\t_createOptionsDropdown() {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst dropdownView = createDropdown( locale );\n\n\t\tdropdownView.class = 'ck-options-dropdown';\n\n\t\tdropdownView.buttonView.set( {\n\t\t\twithText: false,\n\t\t\tlabel: t( 'Show options' ),\n\t\t\ticon: icons.cog,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tconst matchCaseModel = new Model( {\n\t\t\twithText: true,\n\t\t\tlabel: t( 'Match case' ),\n\n\t\t\t// A dummy read-only prop to make it easy to tell which switch was toggled.\n\t\t\t_isMatchCaseSwitch: true\n\t\t} );\n\n\t\tconst wholeWordsOnlyModel = new Model( {\n\t\t\twithText: true,\n\t\t\tlabel: t( 'Whole words only' )\n\t\t} );\n\n\t\t// Let the switches be controlled by form's observable properties.\n\t\tmatchCaseModel.bind( 'isOn' ).to( this, '_matchCase' );\n\t\twholeWordsOnlyModel.bind( 'isOn' ).to( this, '_wholeWordsOnly' );\n\n\t\t// Update the state of the form when a switch is toggled.\n\t\tdropdownView.on( 'execute', evt => {\n\t\t\tif ( evt.source._isMatchCaseSwitch ) {\n\t\t\t\tthis._matchCase = !this._matchCase;\n\t\t\t} else {\n\t\t\t\tthis._wholeWordsOnly = !this._wholeWordsOnly;\n\t\t\t}\n\n\t\t\t// Toggling a switch makes the form dirty because this changes search criteria\n\t\t\t// just like typing text of the find input.\n\t\t\tthis.isDirty = true;\n\t\t} );\n\n\t\taddListToDropdown( dropdownView, new Collection( [\n\t\t\t{ type: 'switchbutton', model: matchCaseModel },\n\t\t\t{ type: 'switchbutton', model: wholeWordsOnlyModel }\n\t\t] ) );\n\n\t\treturn dropdownView;\n\t}\n\n\t/**\n\t * Initializes the {@link #_focusables} and {@link #_focusTracker} to allow navigation\n\t * using <kbd>Tab</kbd> and <kbd>Shift</kbd>+<kbd>Tab</kbd> keystrokes in the right order.\n\t *\n\t * @private\n\t */\n\t_initFocusCycling() {\n\t\tconst childViews = [\n\t\t\tthis._findInputView,\n\t\t\tthis._findButtonView,\n\t\t\tthis._findPrevButtonView,\n\t\t\tthis._findNextButtonView,\n\t\t\tthis._replaceInputView,\n\t\t\tthis._optionsDropdown,\n\t\t\tthis._replaceButtonView,\n\t\t\tthis._replaceAllButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( v );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis._focusTracker.add( v.element );\n\t\t} );\n\t}\n\n\t/**\n\t * Initializes the keystroke handling in the form.\n\t *\n\t * @private\n\t */\n\t_initKeystrokeHandling() {\n\t\tconst stopPropagation = data => data.stopPropagation();\n\t\tconst stopPropagationAndPreventDefault = data => {\n\t\t\tdata.stopPropagation();\n\t\t\tdata.preventDefault();\n\t\t};\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis._keystrokes.listenTo( this.element );\n\n\t\t// Find the next result upon F3.\n\t\tthis._keystrokes.set( 'f3', event => {\n\t\t\tstopPropagationAndPreventDefault( event );\n\n\t\t\tthis._findNextButtonView.fire( 'execute' );\n\t\t} );\n\n\t\t// Find the previous result upon F3.\n\t\tthis._keystrokes.set( 'shift+f3', event => {\n\t\t\tstopPropagationAndPreventDefault( event );\n\n\t\t\tthis._findPrevButtonView.fire( 'execute' );\n\t\t} );\n\n\t\t// Find or replace upon pressing Enter in the find and replace fields.\n\t\tthis._keystrokes.set( 'enter', event => {\n\t\t\tconst target = event.target;\n\n\t\t\tif ( target === this._findInputView.fieldView.element ) {\n\t\t\t\tif ( this._areCommandsEnabled.findNext ) {\n\t\t\t\t\tthis._findNextButtonView.fire( 'execute' );\n\t\t\t\t} else {\n\t\t\t\t\tthis._findButtonView.fire( 'execute' );\n\t\t\t\t}\n\t\t\t\tstopPropagationAndPreventDefault( event );\n\t\t\t} else if ( target === this._replaceInputView.fieldView.element && !this.isDirty ) {\n\t\t\t\tthis._replaceButtonView.fire( 'execute' );\n\t\t\t\tstopPropagationAndPreventDefault( event );\n\t\t\t}\n\t\t} );\n\n\t\t// Find previous upon pressing Shift+Enter in the find field.\n\t\tthis._keystrokes.set( 'shift+enter', event => {\n\t\t\tconst target = event.target;\n\n\t\t\tif ( target !== this._findInputView.fieldView.element ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( this._areCommandsEnabled.findPrevious ) {\n\t\t\t\tthis._findPrevButtonView.fire( 'execute' );\n\t\t\t} else {\n\t\t\t\tthis._findButtonView.fire( 'execute' );\n\t\t\t}\n\n\t\t\tstopPropagationAndPreventDefault( event );\n\t\t} );\n\n\t\t// Since the form is in the dropdown panel which is a child of the toolbar, the toolbar's\n\t\t// keystroke handler would take over the key management in the URL input.\n\t\t// We need to prevent this ASAP. Otherwise, the basic caret movement using the arrow keys will be impossible.\n\t\tthis._keystrokes.set( 'arrowright', stopPropagation );\n\t\tthis._keystrokes.set( 'arrowleft', stopPropagation );\n\t\tthis._keystrokes.set( 'arrowup', stopPropagation );\n\t\tthis._keystrokes.set( 'arrowdown', stopPropagation );\n\n\t\t// Intercept the `selectstart` event, which is blocked by default because of the default behavior\n\t\t// of the DropdownView#panelView. This blocking prevents the native select all on Ctrl+A.\n\t\tthis.listenTo( this._findInputView.element, 'selectstart', ( evt, domEvt ) => {\n\t\t\tdomEvt.stopPropagation();\n\t\t}, { priority: 'high' } );\n\n\t\tthis.listenTo( this._replaceInputView.element, 'selectstart', ( evt, domEvt ) => {\n\t\t\tdomEvt.stopPropagation();\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Creates a button view.\n\t *\n\t * @private\n\t * @param {Object} options The properties of the `ButtonView`.\n\t * @returns {module:ui/button/buttonview~ButtonView} The button view instance.\n\t */\n\t_createButton( options ) {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( options );\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Creates a labeled input view.\n\t *\n\t * @private\n\t * @param {String} label The input label.\n\t * @returns {module:ui/labeledfield/labeledfieldview~LabeledFieldView} The labeled input view instance.\n\t */\n\t_createInputField( label ) {\n\t\tconst labeledInput = new LabeledFieldView( this.locale, createLabeledInputText );\n\n\t\tlabeledInput.label = label;\n\n\t\treturn labeledInput;\n\t}\n}\n\n/**\n * Fired when the find next button is triggered.\n *\n * @event findNext\n * @param {String} searchText Search text.\n */\n\n/**\n * Fired when the find previous button is triggered.\n *\n * @event findPrevious\n * @param {String} searchText Search text.\n */\n\n/**\n * Fired when the replace button is triggered.\n *\n * @event replace\n * @param {String} replaceText Replacement text.\n */\n\n/**\n * Fired when the replaceAll button is triggered.\n *\n * @event replaceAll\n * @param {String} replaceText Replacement text.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplaceui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { createDropdown } from 'ckeditor5/src/ui';\nimport FindAndReplaceFormView from './ui/findandreplaceformview';\n\nimport loupeIcon from '../theme/icons/find-replace.svg';\n\n/**\n * The default find and replace UI.\n *\n * It registers the `'findAndReplace'` UI button in the editor's {@link module:ui/componentfactory~ComponentFactory component factory}.\n * that uses the {@link module:find-and-replace/findandreplace~FindAndReplace FindAndReplace} plugin API.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FindAndReplaceUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FindAndReplaceUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A reference to the find and replace form view.\n\t\t *\n\t\t * @member {module:find-and-replace/ui/findandreplaceformview~FindAndReplaceFormView} #formView\n\t\t */\n\t\tthis.formView = null;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Register the toolbar dropdown component.\n\t\teditor.ui.componentFactory.add( 'findAndReplace', locale => {\n\t\t\tconst dropdown = createDropdown( locale );\n\t\t\tconst formView = this.formView = new FindAndReplaceFormView( editor.locale );\n\n\t\t\t// Dropdown should be disabled when in source editing mode. See #10001.\n\t\t\tdropdown.bind( 'isEnabled' ).to( editor.commands.get( 'find' ) );\n\t\t\tdropdown.panelView.children.add( formView );\n\n\t\t\t// Every time a dropdown is opened, the search text field should get focused and selected for better UX.\n\t\t\t// Note: Using the low priority here to make sure the following listener starts working after\n\t\t\t// the default action of the drop-down is executed (i.e. the panel showed up). Otherwise,\n\t\t\t// the invisible form/input cannot be focused/selected.\n\t\t\t//\n\t\t\t// Each time a dropdown is closed, move the focus back to the find and replace toolbar button\n\t\t\t// and let the find and replace editing feature know that all search results can be invalidated\n\t\t\t// and no longer should be marked in the content.\n\t\t\tdropdown.on( 'change:isOpen', ( event, name, isOpen ) => {\n\t\t\t\tif ( isOpen ) {\n\t\t\t\t\tformView.disableCssTransitions();\n\n\t\t\t\t\tformView.reset();\n\t\t\t\t\tformView._findInputView.fieldView.select();\n\n\t\t\t\t\tformView.enableCssTransitions();\n\t\t\t\t} else {\n\t\t\t\t\tthis.fire( 'searchReseted' );\n\t\t\t\t}\n\t\t\t}, { priority: 'low' } );\n\n\t\t\tthis._setupDropdownButton( dropdown );\n\t\t\tthis._setupFormView( formView );\n\n\t\t\treturn dropdown;\n\t\t} );\n\t}\n\n\t/**\n\t * Sets up the find and replace button.\n\t *\n\t * @private\n\t * @param {module:ui/dropdown/dropdownview~DropdownView} dropdown\n\t */\n\t_setupDropdownButton( dropdown ) {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.locale.t;\n\n\t\tdropdown.buttonView.set( {\n\t\t\ticon: loupeIcon,\n\t\t\tlabel: t( 'Find and replace' ),\n\t\t\t// FIXME: keyboard shortcut doesn't work: https://github.com/ckeditor/ckeditor5/issues/10645\n\t\t\t// keystroke: 'CTRL+F',\n\t\t\ttooltip: true\n\t\t} );\n\n\t\t// FIXME: keyboard shortcut doesn't work: https://github.com/ckeditor/ckeditor5/issues/10645\n\t\t// editor.keystrokes.set( 'Ctrl+F', ( data, cancelEvent ) => {\n\t\t// \tdropdown.isOpen = true;\n\t\t// \tcancelEvent();\n\t\t// } );\n\t}\n\n\t/**\n\t * Sets up the form view for the find and replace.\n\t *\n\t * @private\n\t * @param {module:find-and-replace/ui/findandreplaceformview~FindAndReplaceFormView} formView A related form view.\n\t */\n\t_setupFormView( formView ) {\n\t\tconst editor = this.editor;\n\t\tconst commands = editor.commands;\n\t\tconst findAndReplaceEditing = this.editor.plugins.get( 'FindAndReplaceEditing' );\n\t\tconst editingState = findAndReplaceEditing.state;\n\t\tconst sortMapping = { before: -1, same: 0, after: 1 };\n\n\t\t// Let the form know which result is being highlighted.\n\t\tformView.bind( 'highlightOffset' ).to( editingState, 'highlightedResult', highlightedResult => {\n\t\t\tif ( !highlightedResult ) {\n\t\t\t\treturn 0;\n\t\t\t}\n\n\t\t\treturn Array.from( editingState.results )\n\t\t\t\t.sort( ( a, b ) => sortMapping[ a.marker.getStart().compareWith( b.marker.getStart() ) ] )\n\t\t\t\t.indexOf( highlightedResult ) + 1;\n\t\t} );\n\n\t\t// Let the form know how many results were found in total.\n\t\tformView.listenTo( editingState.results, 'change', () => {\n\t\t\tformView.matchCount = editingState.results.length;\n\t\t} );\n\n\t\t// Command states are used to enable/disable individual form controls.\n\t\t// To keep things simple, instead of binding 4 individual observables, there's only one that combines every\n\t\t// commands' isEnabled state. Yes, it will change more often but this simplifies the structure of the form.\n\t\tformView.bind( '_areCommandsEnabled' ).to(\n\t\t\tcommands.get( 'findNext' ), 'isEnabled',\n\t\t\tcommands.get( 'findPrevious' ), 'isEnabled',\n\t\t\tcommands.get( 'replace' ), 'isEnabled',\n\t\t\tcommands.get( 'replaceAll' ), 'isEnabled',\n\t\t\t( findNext, findPrevious, replace, replaceAll ) => ( { findNext, findPrevious, replace, replaceAll } )\n\t\t);\n\n\t\t// The UI plugin works as an interface between the form and the editing part of the feature.\n\t\tformView.delegate( 'findNext', 'findPrevious', 'replace', 'replaceAll' ).to( this );\n\n\t\t// Let the feature know that search results are no longer relevant because the user changed the searched phrase\n\t\t// (or options) but didn't hit the \"Find\" button yet (e.g. still typing).\n\t\tformView.on( 'change:isDirty', ( evt, data, isDirty ) => {\n\t\t\tif ( isDirty ) {\n\t\t\t\tthis.fire( 'searchReseted' );\n\t\t\t}\n\t\t} );\n\t}\n}\n\n/**\n * Fired when the find next button is triggered.\n *\n * @event findNext\n * @param {String} searchText Search text.\n */\n\n/**\n * Fired when the find previous button is triggered.\n *\n * @event findPrevious\n * @param {String} searchText Search text.\n */\n\n/**\n * Fired when the replace button is triggered.\n *\n * @event replace\n * @param {String} replaceText Replacement text.\n */\n\n/**\n * Fired when the replaceAll button is triggered.\n *\n * @event replaceAll\n * @param {String} replaceText Replacement text.\n */\n\n/**\n * Fired when the UI was reset and the search results marked in the editing root should be invalidated,\n * for instance, because the user changed the searched phrase (or options) but didn't hit\n * the \"Find\" button yet.\n *\n * @event searchReseted\n */\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m12.87 13.786 1.532-1.286 3.857 4.596a1 1 0 1 1-1.532 1.286l-3.857-4.596z\\\"/><path d=\\\"M16.004 8.5a6.5 6.5 0 0 1-9.216 5.905c-1.154-.53-.863-1.415-.663-1.615.194-.194.564-.592 1.635-.141a4.5 4.5 0 0 0 5.89-5.904l-.104-.227 1.332-1.331c.045-.046.196-.041.224.007a6.47 6.47 0 0 1 .902 3.306zm-3.4-5.715c.562.305.742 1.106.354 1.494-.388.388-.995.414-1.476.178a4.5 4.5 0 0 0-6.086 5.882l.114.236-1.348 1.349c-.038.037-.17.022-.198-.023a6.5 6.5 0 0 1 5.54-9.9 6.469 6.469 0 0 1 3.1.784z\\\"/><path d=\\\"M4.001 11.93.948 8.877a.2.2 0 0 1 .141-.341h6.106a.2.2 0 0 1 .141.341L4.283 11.93a.2.2 0 0 1-.282 0zm11.083-6.789 3.053 3.053a.2.2 0 0 1-.14.342H11.89a.2.2 0 0 1-.14-.342l3.052-3.053a.2.2 0 0 1 .282 0z\\\"/></svg>\";","import toString from './toString.js';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n    reHasRegExpChar = RegExp(reRegExpChar.source);\n\n/**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\nfunction escapeRegExp(string) {\n  string = toString(string);\n  return (string && reHasRegExpChar.test(string))\n    ? string.replace(reRegExpChar, '\\\\$&')\n    : string;\n}\n\nexport default escapeRegExp;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/utils\n */\n\nimport { uid, Collection } from 'ckeditor5/src/utils';\nimport { escapeRegExp } from 'lodash-es';\n\n/**\n * Executes findCallback and updates search results list.\n *\n * @param {module:engine/model/range~Range} range The model range to scan for matches.\n * @param {module:engine/model/model~Model} model The model.\n * @param {Function} findCallback The callback that should return `true` if provided text matches the search term.\n * @param {module:utils/collection~Collection} [startResults] An optional collection of find matches that the function should\n * start with. This would be a collection returned by a previous `updateFindResultFromRange()` call.\n * @returns {module:utils/collection~Collection} A collection of objects describing find match.\n *\n * An example structure:\n *\n * ```js\n * {\n *\tid: resultId,\n *\tlabel: foundItem.label,\n *\tmarker\n *\t}\n * ```\n */\nexport function updateFindResultFromRange( range, model, findCallback, startResults ) {\n\tconst results = startResults || new Collection();\n\n\tmodel.change( writer => {\n\t\t[ ...range ].forEach( ( { type, item } ) => {\n\t\t\tif ( type === 'elementStart' ) {\n\t\t\t\tif ( model.schema.checkChild( item, '$text' ) ) {\n\t\t\t\t\tconst foundItems = findCallback( {\n\t\t\t\t\t\titem,\n\t\t\t\t\t\ttext: rangeToText( model.createRangeIn( item ) )\n\t\t\t\t\t} );\n\n\t\t\t\t\tif ( !foundItems ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\tfoundItems.forEach( foundItem => {\n\t\t\t\t\t\tconst resultId = `findResult:${ uid() }`;\n\t\t\t\t\t\tconst marker = writer.addMarker( resultId, {\n\t\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\t\trange: writer.createRange(\n\t\t\t\t\t\t\t\twriter.createPositionAt( item, foundItem.start ),\n\t\t\t\t\t\t\t\twriter.createPositionAt( item, foundItem.end )\n\t\t\t\t\t\t\t)\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t\tconst index = findInsertIndex( results, marker );\n\n\t\t\t\t\t\tresults.add(\n\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\tid: resultId,\n\t\t\t\t\t\t\t\tlabel: foundItem.label,\n\t\t\t\t\t\t\t\tmarker\n\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\tindex\n\t\t\t\t\t\t);\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t} );\n\n\treturn results;\n}\n\n/**\n * Returns text representation of a range. The returned text length should be the same as range length.\n * In order to achieve this this function will replace inline elements (text-line) as new line character (\"\\n\").\n *\n * @param {module:engine/model/range~Range} range The model range.\n * @returns {String} The text content of the provided range.\n */\nexport function rangeToText( range ) {\n\treturn Array.from( range.getItems() ).reduce( ( rangeText, node ) => {\n\t\t// Trim text to a last occurrence of an inline element and update range start.\n\t\tif ( !( node.is( 'text' ) || node.is( 'textProxy' ) ) ) {\n\t\t\t// Editor has only one inline element defined in schema: `<softBreak>` which is treated as new line character in blocks.\n\t\t\t// Special handling might be needed for other inline elements (inline widgets).\n\t\t\treturn `${ rangeText }\\n`;\n\t\t}\n\n\t\treturn rangeText + node.data;\n\t}, '' );\n}\n\n// Finds the appropriate index in the resultsList Collection.\nfunction findInsertIndex( resultsList, markerToInsert ) {\n\tconst result = resultsList.find( ( { marker } ) => {\n\t\treturn markerToInsert.getStart().isBefore( marker.getStart() );\n\t} );\n\n\treturn result ? resultsList.getIndex( result ) : resultsList.length;\n}\n\n// Maps RegExp match result to find result.\nfunction regexpMatchToFindResult( matchResult ) {\n\tconst lastGroupIndex = matchResult.length - 1;\n\n\tlet startOffset = matchResult.index;\n\n\t// Searches with match all flag have an extra matching group with empty string or white space matched before the word.\n\t// If the search term starts with the space already, there is no extra group even with match all flag on.\n\tif ( matchResult.length === 3 ) {\n\t\tstartOffset += matchResult[ 1 ].length;\n\t}\n\n\treturn {\n\t\tlabel: matchResult[ lastGroupIndex ],\n\t\tstart: startOffset,\n\t\tend: startOffset + matchResult[ lastGroupIndex ].length\n\t};\n}\n\n/**\n * Creates a text matching callback for a specified search term and matching options.\n *\n * @param {String} searchTerm The search term.\n * @param {Object} [options] Matching options.\n * @param {Boolean} [options.matchCase=false] If set to `true` letter casing will be ignored.\n * @param {Boolean} [options.wholeWords=false] If set to `true` only whole words that match `callbackOrText` will be matched.\n * @returns {Function}\n */\nexport function findByTextCallback( searchTerm, options ) {\n\tlet flags = 'gu';\n\n\tif ( !options.matchCase ) {\n\t\tflags += 'i';\n\t}\n\n\tlet regExpQuery = `(${ escapeRegExp( searchTerm ) })`;\n\n\tif ( options.wholeWords ) {\n\t\tconst nonLetterGroup = '[^a-zA-Z\\u00C0-\\u024F\\u1E00-\\u1EFF]';\n\n\t\tif ( !new RegExp( '^' + nonLetterGroup ).test( searchTerm ) ) {\n\t\t\tregExpQuery = `(^|${ nonLetterGroup }|_)${ regExpQuery }`;\n\t\t}\n\n\t\tif ( !new RegExp( nonLetterGroup + '$' ).test( searchTerm ) ) {\n\t\t\tregExpQuery = `${ regExpQuery }(?=_|${ nonLetterGroup }|$)`;\n\t\t}\n\t}\n\n\tconst regExp = new RegExp( regExpQuery, flags );\n\n\tfunction findCallback( { text } ) {\n\t\tconst matches = [ ...text.matchAll( regExp ) ];\n\n\t\treturn matches.map( regexpMatchToFindResult );\n\t}\n\n\treturn findCallback;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findcommand\n*/\n\nimport { Command } from 'ckeditor5/src/core';\nimport { updateFindResultFromRange, findByTextCallback } from './utils';\n\n/**\n * The find command. It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class FindCommand extends Command {\n\t/**\n\t * Creates a new `FindCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor on which this command will be used.\n\t * @param {module:find-and-replace/findandreplacestate~FindAndReplaceState} state An object to hold plugin state.\n\t */\n\tconstructor( editor, state ) {\n\t\tsuper( editor );\n\n\t\t// The find command is always enabled.\n\t\tthis.isEnabled = true;\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\n\t\t/**\n\t\t * The find and replace state object used for command operations.\n\t\t *\n\t\t * @private\n\t\t * @member {module:find-and-replace/findandreplacestate~FindAndReplaceState} #_state\n\t\t */\n\t\tthis._state = state;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @param {Function|String} callbackOrText\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.matchCase=false] If set to `true`, the letter case will be matched.\n\t * @param {Boolean} [options.wholeWords=false] If set to `true`, only whole words that match `callbackOrText` will be matched.\n\t *\n\t * @fires execute\n\t */\n\texecute( callbackOrText, { matchCase, wholeWords } = {} ) {\n\t\tconst { editor } = this;\n\t\tconst { model } = editor;\n\n\t\tlet findCallback;\n\n\t\t// Allow to execute `find()` on a plugin with a keyword only.\n\t\tif ( typeof callbackOrText === 'string' ) {\n\t\t\tfindCallback = findByTextCallback( callbackOrText, { matchCase, wholeWords } );\n\n\t\t\tthis._state.searchText = callbackOrText;\n\t\t} else {\n\t\t\tfindCallback = callbackOrText;\n\t\t}\n\n\t\t// Initial search is done on all nodes in all roots inside the content.\n\t\tconst results = model.document.getRootNames()\n\t\t\t.reduce( ( ( currentResults, rootName ) => updateFindResultFromRange(\n\t\t\t\tmodel.createRangeIn( model.document.getRoot( rootName ) ),\n\t\t\t\tmodel,\n\t\t\t\tfindCallback,\n\t\t\t\tcurrentResults\n\t\t\t) ), null );\n\n\t\tthis._state.clear( model );\n\t\tthis._state.results.addMany( Array.from( results ) );\n\t\tthis._state.highlightedResult = results.get( 0 );\n\n\t\tif ( typeof callbackOrText === 'string' ) {\n\t\t\tthis._state.searchText = callbackOrText;\n\t\t}\n\n\t\tthis._state.matchCase = !!matchCase;\n\t\tthis._state.matchWholeWords = !!wholeWords;\n\n\t\treturn {\n\t\t\tresults,\n\t\t\tfindCallback\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/replacecommand\n*/\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The replace command. It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class ReplaceCommand extends Command {\n\t/**\n\t * Creates a new `ReplaceCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor Editor on which this command will be used.\n\t * @param {module:find-and-replace/findandreplacestate~FindAndReplaceState} state An object to hold plugin state.\n\t */\n\tconstructor( editor, state ) {\n\t\tsuper( editor );\n\n\t\t// The replace command is always enabled.\n\t\tthis.isEnabled = true;\n\n\t\t/**\n\t\t * The find and replace state object used for command operations.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:find-and-replace/findandreplacestate~FindAndReplaceState} #_state\n\t\t */\n\t\tthis._state = state;\n\t}\n\n\t/**\n\t * Replace a given find result by a string or a callback.\n\t *\n\t * @param {String} replacementText\n\t * @param {Object} result A single result from the find command.\n\t *\n\t * @fires module:core/command~Command#event:execute\n\t */\n\texecute( replacementText, result ) {\n\t\tconst { model } = this.editor;\n\n\t\tmodel.change( writer => {\n\t\t\tconst range = result.marker.getRange();\n\n\t\t\t// Don't replace a result (marker) that found its way into the $graveyard (e.g. removed by collaborators).\n\t\t\tif ( range.root.rootName === '$graveyard' ) {\n\t\t\t\tthis._state.results.remove( result );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet textAttributes = {};\n\n\t\t\tfor ( const item of range.getItems() ) {\n\t\t\t\tif ( item.is( '$text' ) || item.is( '$textProxy' ) ) {\n\t\t\t\t\ttextAttributes = item.getAttributes();\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tmodel.insertContent( writer.createText( replacementText, textAttributes ), range );\n\n\t\t\tif ( this._state.results.has( result ) ) {\n\t\t\t\tthis._state.results.remove( result );\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/replaceallcommand\n */\n\nimport { updateFindResultFromRange, findByTextCallback } from './utils';\nimport { Collection } from 'ckeditor5/src/utils';\nimport ReplaceCommand from './replacecommand';\n\n/**\n * The replace all command. It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n *\n * @extends module:find-and-replace/replacecommand~ReplaceCommand\n */\nexport default class ReplaceAllCommand extends ReplaceCommand {\n\t/**\n\t * Replaces all the occurrences of `textToReplace` with a given `newText` string.\n\t *\n\t * ```js\n\t *\treplaceAllCommand.execute( 'replaceAll', 'new text replacement', 'text to replace' );\n\t * ```\n\t *\n\t * Alternatively you can call it from editor instance:\n\t *\n\t * ```js\n\t *\teditor.execute( 'replaceAll', 'new text', 'old text' );\n\t * ```\n\t *\n\t * @param {String} newText Text that will be inserted to the editor for each match.\n\t * @param {String|module:utils/collection~Collection} textToReplace Text to be replaced or a collection of matches\n\t * as returned by the find command.\n\t *\n\t * @fires module:core/command~Command#event:execute\n\t */\n\texecute( newText, textToReplace ) {\n\t\tconst { editor } = this;\n\t\tconst { model } = editor;\n\n\t\tconst results = textToReplace instanceof Collection ?\n\t\t\ttextToReplace : model.document.getRootNames()\n\t\t\t\t.reduce( ( ( currentResults, rootName ) => updateFindResultFromRange(\n\t\t\t\t\tmodel.createRangeIn( model.document.getRoot( rootName ) ),\n\t\t\t\t\tmodel,\n\t\t\t\t\tfindByTextCallback( textToReplace, this._state ),\n\t\t\t\t\tcurrentResults\n\t\t\t\t) ), null );\n\n\t\tif ( results.length ) {\n\t\t\tmodel.change( () => {\n\t\t\t\t[ ...results ].forEach( searchResult => {\n\t\t\t\t\t// Just reuse logic from the replace command to replace a single match.\n\t\t\t\t\tsuper.execute( newText, searchResult );\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findnextcommand\n*/\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The find next command. Moves the highlight to the next search result.\n *\n * It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class FindNextCommand extends Command {\n\t/**\n\t * Creates a new `FindNextCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor on which this command will be used.\n\t * @param {module:find-and-replace/findandreplacestate~FindAndReplaceState} state An object to hold plugin state.\n\t */\n\tconstructor( editor, state ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\n\t\t/**\n\t\t * The find and replace state object used for command operations.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:find-and-replace/findandreplacestate~FindAndReplaceState} #_state\n\t\t */\n\t\tthis._state = state;\n\n\t\tthis.isEnabled = false;\n\n\t\tthis.listenTo( this._state.results, 'change', () => {\n\t\t\tthis.isEnabled = this._state.results.length > 1;\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.isEnabled = this._state.results.length > 1;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst results = this._state.results;\n\t\tconst currentIndex = results.getIndex( this._state.highlightedResult );\n\t\tconst nextIndex = currentIndex + 1 >= results.length ?\n\t\t\t0 : currentIndex + 1;\n\n\t\tthis._state.highlightedResult = this._state.results.get( nextIndex );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findpreviouscommand\n*/\n\nimport FindNextCommand from './findnextcommand';\n\n/**\n * The find previous command. Moves the highlight to the previous search result.\n *\n * It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n *\n * @extends module:find-and-replace/findnextcommand~FindNextCommand\n */\nexport default class FindPreviousCommand extends FindNextCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst results = this._state.results;\n\t\tconst currentIndex = results.getIndex( this._state.highlightedResult );\n\t\tconst previousIndex = currentIndex - 1 < 0 ?\n\t\t\tthis._state.results.length - 1 : currentIndex - 1;\n\n\t\tthis._state.highlightedResult = this._state.results.get( previousIndex );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplacestate\n */\n\nimport { ObservableMixin, mix, Collection } from 'ckeditor5/src/utils';\n\n/**\n * The object storing find and replace plugin state for a given editor instance.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class FindAndReplaceState {\n\t/**\n\t * Creates an instance of the state.\n\t *\n\t * @param {module:engine/model/model~Model} model\n\t */\n\tconstructor( model ) {\n\t\t/**\n\t\t * A collection of find matches.\n\t\t *\n\t\t * @protected\n\t\t * @observable\n\t\t * @member {module:utils/collection~Collection} #results\n\t\t */\n\t\tthis.set( 'results', new Collection() );\n\n\t\t/**\n\t\t * Currently highlighted search result in {@link #results matched results}.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Object|null} #highlightedResult\n\t\t */\n\t\tthis.set( 'highlightedResult', null );\n\n\t\t/**\n\t\t * Searched text value.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {String} #searchText\n\t\t */\n\t\tthis.set( 'searchText', '' );\n\n\t\t/**\n\t\t * Replace text value.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {String} #replaceText\n\t\t */\n\t\tthis.set( 'replaceText', '' );\n\n\t\t/**\n\t\t * Indicates whether the matchCase checkbox has been checked.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #matchCase\n\t\t */\n\t\tthis.set( 'matchCase', false );\n\n\t\t/**\n\t\t * Indicates whether the matchWholeWords checkbox has been checked.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #matchWholeWords\n\t\t */\n\t\tthis.set( 'matchWholeWords', false );\n\n\t\tthis.results.on( 'change', ( eventInfo, { removed, index } ) => {\n\t\t\tremoved = Array.from( removed );\n\n\t\t\tif ( removed.length ) {\n\t\t\t\tlet highlightedResultRemoved = false;\n\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\tfor ( const removedResult of removed ) {\n\t\t\t\t\t\tif ( this.highlightedResult === removedResult ) {\n\t\t\t\t\t\t\thighlightedResultRemoved = true;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( model.markers.has( removedResult.marker.name ) ) {\n\t\t\t\t\t\t\twriter.removeMarker( removedResult.marker );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t} );\n\n\t\t\t\tif ( highlightedResultRemoved ) {\n\t\t\t\t\tconst nextHighlightedIndex = index >= this.results.length ? 0 : index;\n\t\t\t\t\tthis.highlightedResult = this.results.get( nextHighlightedIndex );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Cleans the state up and removes markers from the model.\n\t *\n\t * @param {module:engine/model/model~Model} model\n\t */\n\tclear( model ) {\n\t\tthis.searchText = '';\n\n\t\tmodel.change( writer => {\n\t\t\tif ( this.highlightedResult ) {\n\t\t\t\tconst oldMatchId = this.highlightedResult.marker.name.split( ':' )[ 1 ];\n\t\t\t\tconst oldMarker = model.markers.get( `findResultHighlighted:${ oldMatchId }` );\n\n\t\t\t\tif ( oldMarker ) {\n\t\t\t\t\twriter.removeMarker( oldMarker );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t[ ...this.results ].forEach( ( { marker } ) => {\n\t\t\t\twriter.removeMarker( marker );\n\t\t\t} );\n\t\t} );\n\n\t\tthis.results.clear();\n\t}\n}\n\nmix( FindAndReplaceState, ObservableMixin );\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./findandreplace.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplaceediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { updateFindResultFromRange } from './utils';\nimport FindCommand from './findcommand';\nimport ReplaceCommand from './replacecommand';\nimport ReplaceAllCommand from './replaceallcommand';\nimport FindNextCommand from './findnextcommand';\nimport FindPreviousCommand from './findpreviouscommand';\nimport FindAndReplaceState from './findandreplacestate';\n\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport { scrollViewportToShowTarget } from '@ckeditor/ckeditor5-utils/src/dom/scroll';\n\nimport { debounce } from 'lodash-es';\n\nimport '../theme/findandreplace.css';\n\nconst HIGHLIGHT_CLASS = 'ck-find-result_selected';\n\n// Reacts to document changes in order to update search list.\nfunction onDocumentChange( results, model, searchCallback ) {\n\tconst changedNodes = new Set();\n\tconst removedMarkers = new Set();\n\n\tconst changes = model.document.differ.getChanges();\n\n\t// Get nodes in which changes happened to re-run a search callback on them.\n\tchanges.forEach( change => {\n\t\tif ( change.name === '$text' || model.schema.isInline( change.position.nodeAfter ) ) {\n\t\t\tchangedNodes.add( change.position.parent );\n\n\t\t\t[ ...model.markers.getMarkersAtPosition( change.position ) ].forEach( markerAtChange => {\n\t\t\t\tremovedMarkers.add( markerAtChange.name );\n\t\t\t} );\n\t\t} else if ( change.type === 'insert' ) {\n\t\t\tchangedNodes.add( change.position.nodeAfter );\n\t\t}\n\t} );\n\n\t// Get markers from removed nodes also.\n\tmodel.document.differ.getChangedMarkers().forEach( ( { name, data: { newRange } } ) => {\n\t\tif ( newRange && newRange.start.root.rootName === '$graveyard' ) {\n\t\t\tremovedMarkers.add( name );\n\t\t}\n\t} );\n\n\t// Get markers from the updated nodes and remove all (search will be re-run on these nodes).\n\tchangedNodes.forEach( node => {\n\t\tconst markersInNode = [ ...model.markers.getMarkersIntersectingRange( model.createRangeIn( node ) ) ];\n\n\t\tmarkersInNode.forEach( marker => removedMarkers.add( marker.name ) );\n\t} );\n\n\t// Remove results & markers from the changed part of content.\n\tmodel.change( writer => {\n\t\tremovedMarkers.forEach( markerName => {\n\t\t\t// Remove the result first - in order to prevent rendering a removed marker.\n\t\t\tif ( results.has( markerName ) ) {\n\t\t\t\tresults.remove( markerName );\n\t\t\t}\n\n\t\t\twriter.removeMarker( markerName );\n\t\t} );\n\t} );\n\n\t// Run search callback again on updated nodes.\n\tchangedNodes.forEach( nodeToCheck => {\n\t\tupdateFindResultFromRange( model.createRangeOn( nodeToCheck ), model, searchCallback, results );\n\t} );\n}\n\n/**\n * Implements the editing part for find and replace plugin. For example conversion, commands etc.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FindAndReplaceEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FindAndReplaceEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\t/**\n\t\t * The collection of currently highlighted search results.\n\t\t *\n\t\t * @private\n\t\t * @member {module:utils/collection~Collection} #_activeResults\n\t\t */\n\t\tthis._activeResults = null;\n\n\t\t/**\n\t\t * An object storing the find and replace state within a given editor instance.\n\t\t *\n\t\t * @member {module:find-and-replace/findandreplacestate~FindAndReplaceState} #state\n\t\t */\n\t\tthis.state = new FindAndReplaceState( this.editor.model );\n\n\t\tthis._defineConverters();\n\t\tthis._defineCommands();\n\n\t\tthis.listenTo( this.state, 'change:highlightedResult', ( eventInfo, name, newValue, oldValue ) => {\n\t\t\tconst { model } = this.editor;\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tif ( oldValue ) {\n\t\t\t\t\tconst oldMatchId = oldValue.marker.name.split( ':' )[ 1 ];\n\t\t\t\t\tconst oldMarker = model.markers.get( `findResultHighlighted:${ oldMatchId }` );\n\n\t\t\t\t\tif ( oldMarker ) {\n\t\t\t\t\t\twriter.removeMarker( oldMarker );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( newValue ) {\n\t\t\t\t\tconst newMatchId = newValue.marker.name.split( ':' )[ 1 ];\n\t\t\t\t\twriter.addMarker( `findResultHighlighted:${ newMatchId }`, {\n\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\trange: newValue.marker.getRange()\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\n\t\tconst debouncedScrollListener = debounce( scrollToHighlightedResult.bind( this ), 32 );\n\t\t// Debounce scroll as highlight might be changed very frequently, e.g. when there's a replace all command.\n\t\tthis.listenTo( this.state, 'change:highlightedResult', debouncedScrollListener, { priority: 'low' } );\n\n\t\t// It's possible that the editor will get destroyed before debounced call kicks in.\n\t\t// This would result with accessing a view three that is no longer in DOM.\n\t\tthis.listenTo( this.editor, 'destroy', debouncedScrollListener.cancel );\n\n\t\t/* istanbul ignore next */\n\t\tfunction scrollToHighlightedResult( eventInfo, name, newValue ) {\n\t\t\tif ( newValue ) {\n\t\t\t\tconst domConverter = this.editor.editing.view.domConverter;\n\t\t\t\tconst viewRange = this.editor.editing.mapper.toViewRange( newValue.marker.getRange() );\n\n\t\t\t\tscrollViewportToShowTarget( {\n\t\t\t\t\ttarget: domConverter.viewRangeToDom( viewRange ),\n\t\t\t\t\tviewportOffset: 40\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Initiate a search.\n\t *\n\t * @param {Function|String} callbackOrText\n\t * @returns {module:utils/collection~Collection}\n\t */\n\tfind( callbackOrText ) {\n\t\tconst { editor } = this;\n\t\tconst { model } = editor;\n\n\t\tconst { findCallback, results } = editor.execute( 'find', callbackOrText );\n\n\t\tthis._activeResults = results;\n\n\t\t// @todo: handle this listener, another copy is in findcommand.js file.\n\t\tthis.listenTo( model.document, 'change:data', () => onDocumentChange( this._activeResults, model, findCallback ) );\n\n\t\treturn this._activeResults;\n\t}\n\n\t/**\n\t * Stops active results from updating, and clears out the results.\n\t */\n\tstop() {\n\t\tif ( !this._activeResults ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.stopListening( this.editor.model.document );\n\n\t\tthis.state.clear( this.editor.model );\n\n\t\tthis._activeResults = null;\n\t}\n\n\t/**\n\t * Sets up the commands.\n\t *\n\t * @private\n\t */\n\t_defineCommands() {\n\t\tthis.editor.commands.add( 'find', new FindCommand( this.editor, this.state ) );\n\t\tthis.editor.commands.add( 'findNext', new FindNextCommand( this.editor, this.state ) );\n\t\tthis.editor.commands.add( 'findPrevious', new FindPreviousCommand( this.editor, this.state ) );\n\t\tthis.editor.commands.add( 'replace', new ReplaceCommand( this.editor, this.state ) );\n\t\tthis.editor.commands.add( 'replaceAll', new ReplaceAllCommand( this.editor, this.state ) );\n\t}\n\n\t/**\n\t * Sets up the marker downcast converters for search results highlighting.\n\t *\n\t * @private\n\t */\n\t_defineConverters() {\n\t\tconst { editor } = this;\n\n\t\t// Setup the marker highlighting conversion.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: 'findResult',\n\t\t\tview: ( { markerName } ) => {\n\t\t\t\tconst [ , id ] = markerName.split( ':' );\n\n\t\t\t\t// Marker removal from the view has a bug: https://github.com/ckeditor/ckeditor5/issues/7499\n\t\t\t\t// A minimal option is to return a new object for each converted marker...\n\t\t\t\treturn {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ 'ck-find-result' ],\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\t// ...however, adding a unique attribute should be future-proof..\n\t\t\t\t\t\t'data-find-result': id\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: 'findResultHighlighted',\n\t\t\tview: ( { markerName } ) => {\n\t\t\t\tconst [ , id ] = markerName.split( ':' );\n\n\t\t\t\t// Marker removal from the view has a bug: https://github.com/ckeditor/ckeditor5/issues/7499\n\t\t\t\t// A minimal option is to return a new object for each converted marker...\n\t\t\t\treturn {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ HIGHLIGHT_CLASS ],\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\t// ...however, adding a unique attribute should be future-proof..\n\t\t\t\t\t\t'data-find-result': id\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module upload/filereader\n */\n\n/* globals window */\n\nimport { ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\ntype DomFileReader = globalThis.FileReader;\n\n/**\n * Wrapper over the native `FileReader`.\n */\nexport default class FileReader extends ObservableMixin() {\n\tpublic total!: number;\n\n\tprivate readonly _reader: DomFileReader;\n\tprivate _data?: string;\n\n\tdeclare public loaded: number;\n\n\t/**\n\t * Creates an instance of the FileReader.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\tconst reader = new window.FileReader();\n\n\t\t/**\n\t\t * Instance of native FileReader.\n\t\t *\n\t\t * @private\n\t\t * @member {FileReader} #_reader\n\t\t */\n\t\tthis._reader = reader;\n\n\t\tthis._data = undefined;\n\n\t\t/**\n\t\t * Number of bytes loaded.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number} #loaded\n\t\t */\n\t\tthis.set( 'loaded', 0 );\n\n\t\treader.onprogress = evt => {\n\t\t\tthis.loaded = evt.loaded;\n\t\t};\n\t}\n\n\t/**\n\t * Returns error that occurred during file reading.\n\t *\n\t * @returns {Error}\n\t */\n\tpublic get error(): DOMException | null {\n\t\treturn this._reader.error;\n\t}\n\n\t/**\n\t * Holds the data of an already loaded file. The file must be first loaded\n\t * by using {@link module:upload/filereader~FileReader#read `read()`}.\n\t *\n\t * @type {File|undefined}\n\t */\n\tpublic get data(): string | undefined {\n\t\treturn this._data;\n\t}\n\n\t/**\n\t * Reads the provided file.\n\t *\n\t * @param {File} file Native File object.\n\t * @returns {Promise.<String>} Returns a promise that will be resolved with file's content.\n\t * The promise will be rejected in case of an error or when the reading process is aborted.\n\t */\n\tpublic read( file: File ): Promise<string> {\n\t\tconst reader = this._reader;\n\t\tthis.total = file.size;\n\n\t\treturn new Promise( ( resolve, reject ) => {\n\t\t\treader.onload = () => {\n\t\t\t\tconst result = reader.result as string;\n\n\t\t\t\tthis._data = result;\n\n\t\t\t\tresolve( result );\n\t\t\t};\n\n\t\t\treader.onerror = () => {\n\t\t\t\treject( 'error' );\n\t\t\t};\n\n\t\t\treader.onabort = () => {\n\t\t\t\treject( 'aborted' );\n\t\t\t};\n\n\t\t\tthis._reader.readAsDataURL( file );\n\t\t} );\n\t}\n\n\t/**\n\t * Aborts file reader.\n\t */\n\tpublic abort(): void {\n\t\tthis._reader.abort();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module upload/filerepository\n */\n\nimport {\n\tPlugin,\n\tPendingActions,\n\ttype PendingAction,\n\ttype PluginDependencies\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tObservableMixin,\n\tlogWarning,\n\tuid,\n\ttype ObservableChangeEvent,\n\ttype CollectionChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport FileReader from './filereader';\n\n/**\n * File repository plugin. A central point for managing file upload.\n *\n * To use it, first you need an upload adapter. Upload adapter's job is to handle communication with the server\n * (sending the file and handling server's response). You can use one of the existing plugins introducing upload adapters\n * (e.g. {@link module:easy-image/cloudservicesuploadadapter~CloudServicesUploadAdapter} or\n * {@link module:adapter-ckfinder/uploadadapter~CKFinderUploadAdapter}) or write your own one – see\n * the {@glink framework/guides/deep-dive/upload-adapter Custom image upload adapter deep-dive guide}.\n *\n * Then, you can use {@link module:upload/filerepository~FileRepository#createLoader `createLoader()`} and the returned\n * {@link module:upload/filerepository~FileLoader} instance to load and upload files.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FileRepository extends Plugin {\n\tpublic loaders!: Collection<FileLoader>;\n\tpublic createUploadAdapter?: ( loader: FileLoader ) => UploadAdapter;\n\n\tprivate _loadersMap!: Map<File | Promise<File>, FileLoader>;\n\tprivate _pendingAction!: PendingAction | null;\n\n\tdeclare public uploaded: number;\n\tdeclare public uploadTotal: number | null;\n\tdeclare public uploadedPercent: number;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FileRepository' {\n\t\treturn 'FileRepository';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ PendingActions ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\t/**\n\t\t * Collection of loaders associated with this repository.\n\t\t *\n\t\t * @member {module:utils/collection~Collection} #loaders\n\t\t */\n\t\tthis.loaders = new Collection();\n\n\t\t// Keeps upload in a sync with pending actions.\n\t\tthis.loaders.on<CollectionChangeEvent>( 'change', () => this._updatePendingAction() );\n\n\t\t/**\n\t\t * Loaders mappings used to retrieve loaders references.\n\t\t *\n\t\t * @private\n\t\t * @member {Map<File|Promise, FileLoader>} #_loadersMap\n\t\t */\n\t\tthis._loadersMap = new Map();\n\n\t\t/**\n\t\t * Reference to a pending action registered in a {@link module:core/pendingactions~PendingActions} plugin\n\t\t * while upload is in progress. When there is no upload then value is `null`.\n\t\t *\n\t\t * @private\n\t\t * @member {Object} #_pendingAction\n\t\t */\n\t\tthis._pendingAction = null;\n\n\t\t/**\n\t\t * A factory function which should be defined before using `FileRepository`.\n\t\t *\n\t\t * It should return a new instance of {@link module:upload/filerepository~UploadAdapter} that will be used to upload files.\n\t\t * {@link module:upload/filerepository~FileLoader} instance associated with the adapter\n\t\t * will be passed to that function.\n\t\t *\n\t\t * For more information and example see {@link module:upload/filerepository~UploadAdapter}.\n\t\t *\n\t\t * @member {Function} #createUploadAdapter\n\t\t */\n\n\t\t/**\n\t\t * Number of bytes uploaded.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number} #uploaded\n\t\t */\n\t\tthis.set( 'uploaded', 0 );\n\n\t\t/**\n\t\t * Number of total bytes to upload.\n\t\t *\n\t\t * It might be different than the file size because of headers and additional data.\n\t\t * It contains `null` if value is not available yet, so it's better to use {@link #uploadedPercent} to monitor\n\t\t * the progress.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number|null} #uploadTotal\n\t\t */\n\t\tthis.set( 'uploadTotal', null );\n\n\t\t/**\n\t\t * Upload progress in percents.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number} #uploadedPercent\n\t\t */\n\t\tthis.bind( 'uploadedPercent' ).to( this, 'uploaded', this, 'uploadTotal', ( uploaded, total ) => {\n\t\t\treturn total ? ( uploaded / total * 100 ) : 0;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the loader associated with specified file or promise.\n\t *\n\t * To get loader by id use `fileRepository.loaders.get( id )`.\n\t *\n\t * @param {File|Promise.<File>} fileOrPromise Native file or promise handle.\n\t * @returns {module:upload/filerepository~FileLoader|null}\n\t */\n\tpublic getLoader( fileOrPromise: File | Promise<File> ): FileLoader | null {\n\t\treturn this._loadersMap.get( fileOrPromise ) || null;\n\t}\n\n\t/**\n\t * Creates a loader instance for the given file.\n\t *\n\t * Requires {@link #createUploadAdapter} factory to be defined.\n\t *\n\t * @param {File|Promise.<File>} fileOrPromise Native File object or native Promise object which resolves to a File.\n\t * @returns {module:upload/filerepository~FileLoader|null}\n\t */\n\tpublic createLoader( fileOrPromise: File | Promise<File> ): FileLoader | null {\n\t\tif ( !this.createUploadAdapter ) {\n\t\t\t/**\n\t\t\t * You need to enable an upload adapter in order to be able to upload files.\n\t\t\t *\n\t\t\t * This warning shows up when {@link module:upload/filerepository~FileRepository} is being used\n\t\t\t * without {@link #createUploadAdapter defining an upload adapter}.\n\t\t\t *\n\t\t\t * **If you see this warning when using one of the {@glink installation/getting-started/predefined-builds\n\t\t\t * CKEditor 5 Builds}**\n\t\t\t * it means that you did not configure any of the upload adapters available by default in those builds.\n\t\t\t *\n\t\t\t * See the {@glink features/images/image-upload/image-upload comprehensive \"Image upload overview\"} to learn which upload\n\t\t\t * adapters are available in the builds and how to configure them.\n\t\t\t *\n\t\t\t * **If you see this warning when using a custom build** there is a chance that you enabled\n\t\t\t * a feature like {@link module:image/imageupload~ImageUpload},\n\t\t\t * or {@link module:image/imageupload/imageuploadui~ImageUploadUI} but you did not enable any upload adapter.\n\t\t\t * You can choose one of the existing upload adapters listed in the\n\t\t\t * {@glink features/images/image-upload/image-upload \"Image upload overview\"}.\n\t\t\t *\n\t\t\t * You can also implement your {@glink framework/guides/deep-dive/upload-adapter own image upload adapter}.\n\t\t\t *\n\t\t\t * @error filerepository-no-upload-adapter\n\t\t\t */\n\t\t\tlogWarning( 'filerepository-no-upload-adapter' );\n\n\t\t\treturn null;\n\t\t}\n\n\t\tconst loader = new FileLoader( Promise.resolve( fileOrPromise ), this.createUploadAdapter );\n\n\t\tthis.loaders.add( loader );\n\t\tthis._loadersMap.set( fileOrPromise, loader );\n\n\t\t// Store also file => loader mapping so loader can be retrieved by file instance returned upon Promise resolution.\n\t\tif ( fileOrPromise instanceof Promise ) {\n\t\t\tloader.file\n\t\t\t\t.then( file => {\n\t\t\t\t\tthis._loadersMap.set( file!, loader );\n\t\t\t\t} )\n\t\t\t\t// Every then() must have a catch().\n\t\t\t\t// File loader state (and rejections) are handled in read() and upload().\n\t\t\t\t// Also, see the \"does not swallow the file promise rejection\" test.\n\t\t\t\t.catch( () => {} );\n\t\t}\n\n\t\tloader.on<ObservableChangeEvent>( 'change:uploaded', () => {\n\t\t\tlet aggregatedUploaded = 0;\n\n\t\t\tfor ( const loader of this.loaders ) {\n\t\t\t\taggregatedUploaded += loader.uploaded;\n\t\t\t}\n\n\t\t\tthis.uploaded = aggregatedUploaded;\n\t\t} );\n\n\t\tloader.on<ObservableChangeEvent>( 'change:uploadTotal', () => {\n\t\t\tlet aggregatedTotal = 0;\n\n\t\t\tfor ( const loader of this.loaders ) {\n\t\t\t\tif ( loader.uploadTotal ) {\n\t\t\t\t\taggregatedTotal += loader.uploadTotal;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tthis.uploadTotal = aggregatedTotal;\n\t\t} );\n\n\t\treturn loader;\n\t}\n\n\t/**\n\t * Destroys the given loader.\n\t *\n\t * @param {File|Promise|module:upload/filerepository~FileLoader} fileOrPromiseOrLoader File or Promise associated\n\t * with that loader or loader itself.\n\t */\n\tpublic destroyLoader( fileOrPromiseOrLoader: File | Promise<File> | FileLoader ): void {\n\t\tconst loader = fileOrPromiseOrLoader instanceof FileLoader ? fileOrPromiseOrLoader : this.getLoader( fileOrPromiseOrLoader )!;\n\n\t\tloader._destroy();\n\n\t\tthis.loaders.remove( loader );\n\n\t\tthis._loadersMap.forEach( ( value, key ) => {\n\t\t\tif ( value === loader ) {\n\t\t\t\tthis._loadersMap.delete( key );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Registers or deregisters pending action bound with upload progress.\n\t *\n\t * @private\n\t */\n\tprivate _updatePendingAction(): void {\n\t\tconst pendingActions = this.editor.plugins.get( PendingActions );\n\n\t\tif ( this.loaders.length ) {\n\t\t\tif ( !this._pendingAction ) {\n\t\t\t\tconst t = this.editor.t;\n\t\t\t\tconst getMessage = ( value: number ) => `${ t( 'Upload in progress' ) } ${ parseInt( value as any ) }%.`;\n\n\t\t\t\tthis._pendingAction = pendingActions.add( getMessage( this.uploadedPercent ) );\n\t\t\t\tthis._pendingAction.bind( 'message' ).to( this, 'uploadedPercent', getMessage );\n\t\t\t}\n\t\t} else {\n\t\t\tpendingActions.remove( this._pendingAction! );\n\t\t\tthis._pendingAction = null;\n\t\t}\n\t}\n}\n\n/**\n * File loader class.\n *\n * It is used to control the process of reading the file and uploading it using the specified upload adapter.\n */\nclass FileLoader extends ObservableMixin() {\n\tpublic readonly id: string;\n\n\tprivate _filePromiseWrapper: FilePromiseWrapper;\n\tprivate _adapter: UploadAdapter;\n\tprivate _reader: FileReader;\n\n\tdeclare public status: 'idle' | 'reading' | 'uploading' | 'aborted' | 'error';\n\n\tdeclare public uploaded: number;\n\tdeclare public uploadTotal: number | null;\n\tdeclare public uploadedPercent: number;\n\n\tdeclare public uploadResponse?: UploadResponse | null;\n\n\t/**\n\t * Creates a new instance of `FileLoader`.\n\t *\n\t * @param {Promise.<File>} filePromise A promise which resolves to a file instance.\n\t * @param {Function} uploadAdapterCreator The function which returns {@link module:upload/filerepository~UploadAdapter} instance.\n\t */\n\tconstructor( filePromise: Promise<File>, uploadAdapterCreator: ( loader: FileLoader ) => UploadAdapter ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Unique id of FileLoader instance.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.id = uid();\n\n\t\t/**\n\t\t * Additional wrapper over the initial file promise passed to this loader.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:upload/filerepository~FilePromiseWrapper}\n\t\t */\n\t\tthis._filePromiseWrapper = this._createFilePromiseWrapper( filePromise );\n\n\t\t/**\n\t\t * Adapter instance associated with this file loader.\n\t\t *\n\t\t * @private\n\t\t * @member {module:upload/filerepository~UploadAdapter}\n\t\t */\n\t\tthis._adapter = uploadAdapterCreator( this );\n\n\t\t/**\n\t\t * FileReader used by FileLoader.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:upload/filereader~FileReader}\n\t\t */\n\t\tthis._reader = new FileReader();\n\n\t\t/**\n\t\t * Current status of FileLoader. It can be one of the following:\n\t\t *\n\t\t * * 'idle',\n\t\t * * 'reading',\n\t\t * * 'uploading',\n\t\t * * 'aborted',\n\t\t * * 'error'.\n\t\t *\n\t\t * When reading status can change in a following way:\n\t\t *\n\t\t * `idle` -> `reading` -> `idle`\n\t\t * `idle` -> `reading -> `aborted`\n\t\t * `idle` -> `reading -> `error`\n\t\t *\n\t\t * When uploading status can change in a following way:\n\t\t *\n\t\t * `idle` -> `uploading` -> `idle`\n\t\t * `idle` -> `uploading` -> `aborted`\n\t\t * `idle` -> `uploading` -> `error`\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {String} #status\n\t\t */\n\t\tthis.set( 'status', 'idle' );\n\n\t\t/**\n\t\t * Number of bytes uploaded.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number} #uploaded\n\t\t */\n\t\tthis.set( 'uploaded', 0 );\n\n\t\t/**\n\t\t * Number of total bytes to upload.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number|null} #uploadTotal\n\t\t */\n\t\tthis.set( 'uploadTotal', null );\n\n\t\t/**\n\t\t * Upload progress in percents.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number} #uploadedPercent\n\t\t */\n\t\tthis.bind( 'uploadedPercent' ).to( this, 'uploaded', this, 'uploadTotal', ( uploaded, total ) => {\n\t\t\treturn total ? ( uploaded / total * 100 ) : 0;\n\t\t} );\n\n\t\t/**\n\t\t * Response of the upload.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Object|null} #uploadResponse\n\t\t */\n\t\tthis.set( 'uploadResponse', null );\n\t}\n\n\t/**\n\t * A `Promise` which resolves to a `File` instance associated with this file loader.\n\t *\n\t * @type {Promise.<File|null>}\n\t */\n\tpublic get file(): Promise<File | null> {\n\t\tif ( !this._filePromiseWrapper ) {\n\t\t\t// Loader was destroyed, return promise which resolves to null.\n\t\t\treturn Promise.resolve( null );\n\t\t} else {\n\t\t\t// The `this._filePromiseWrapper.promise` is chained and not simply returned to handle a case when:\n\t\t\t//\n\t\t\t//\t\t* The `loader.file.then( ... )` is called by external code (returned promise is pending).\n\t\t\t//\t\t* Then `loader._destroy()` is called (call is synchronous) which destroys the `loader`.\n\t\t\t//\t\t* Promise returned by the first `loader.file.then( ... )` call is resolved.\n\t\t\t//\n\t\t\t// Returning `this._filePromiseWrapper.promise` will still resolve to a `File` instance so there\n\t\t\t// is an additional check needed in the chain to see if `loader` was destroyed in the meantime.\n\t\t\treturn this._filePromiseWrapper.promise.then( file => this._filePromiseWrapper ? file : null );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the file data. To read its data, you need for first load the file\n\t * by using the {@link module:upload/filerepository~FileLoader#read `read()`} method.\n\t *\n\t * @type {File|undefined}\n\t */\n\tpublic get data(): string | undefined {\n\t\treturn this._reader.data;\n\t}\n\n\t/**\n\t * Reads file using {@link module:upload/filereader~FileReader}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `filerepository-read-wrong-status` when status\n\t * is different than `idle`.\n\t *\n\t * Example usage:\n\t *\n\t *\tfileLoader.read()\n\t *\t\t.then( data => { ... } )\n\t *\t\t.catch( err => {\n\t *\t\t\tif ( err === 'aborted' ) {\n\t *\t\t\t\tconsole.log( 'Reading aborted.' );\n\t *\t\t\t} else {\n\t *\t\t\t\tconsole.log( 'Reading error.', err );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * @returns {Promise.<String>} Returns promise that will be resolved with read data. Promise will be rejected if error\n\t * occurs or if read process is aborted.\n\t */\n\tpublic read(): Promise<string> {\n\t\tif ( this.status != 'idle' ) {\n\t\t\t/**\n\t\t\t * You cannot call read if the status is different than idle.\n\t\t\t *\n\t\t\t * @error filerepository-read-wrong-status\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'filerepository-read-wrong-status', this );\n\t\t}\n\n\t\tthis.status = 'reading';\n\n\t\treturn this.file\n\t\t\t.then( file => this._reader.read( file! ) )\n\t\t\t.then( data => {\n\t\t\t\t// Edge case: reader was aborted after file was read - double check for proper status.\n\t\t\t\t// It can happen when image was deleted during its upload.\n\t\t\t\tif ( this.status !== 'reading' ) {\n\t\t\t\t\tthrow this.status;\n\t\t\t\t}\n\n\t\t\t\tthis.status = 'idle';\n\n\t\t\t\treturn data;\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\tif ( err === 'aborted' ) {\n\t\t\t\t\tthis.status = 'aborted';\n\t\t\t\t\tthrow 'aborted';\n\t\t\t\t}\n\n\t\t\t\tthis.status = 'error';\n\t\t\t\tthrow this._reader.error ? this._reader.error : err;\n\t\t\t} );\n\t}\n\n\t/**\n\t * Reads file using the provided {@link module:upload/filerepository~UploadAdapter}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `filerepository-upload-wrong-status` when status\n\t * is different than `idle`.\n\t * Example usage:\n\t *\n\t *\tfileLoader.upload()\n\t *\t\t.then( data => { ... } )\n\t *\t\t.catch( e => {\n\t *\t\t\tif ( e === 'aborted' ) {\n\t *\t\t\t\tconsole.log( 'Uploading aborted.' );\n\t *\t\t\t} else {\n\t *\t\t\t\tconsole.log( 'Uploading error.', e );\n\t *\t\t\t}\n\t *\t\t} );\n\t *\n\t * @returns {Promise.<Object>} Returns promise that will be resolved with response data. Promise will be rejected if error\n\t * occurs or if read process is aborted.\n\t */\n\tpublic upload(): Promise<UploadResponse> {\n\t\tif ( this.status != 'idle' ) {\n\t\t\t/**\n\t\t\t * You cannot call upload if the status is different than idle.\n\t\t\t *\n\t\t\t * @error filerepository-upload-wrong-status\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'filerepository-upload-wrong-status', this );\n\t\t}\n\n\t\tthis.status = 'uploading';\n\n\t\treturn this.file\n\t\t\t.then( () => this._adapter.upload() )\n\t\t\t.then( data => {\n\t\t\t\tthis.uploadResponse = data;\n\t\t\t\tthis.status = 'idle';\n\n\t\t\t\treturn data;\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\tif ( this.status === 'aborted' ) {\n\t\t\t\t\tthrow 'aborted';\n\t\t\t\t}\n\n\t\t\t\tthis.status = 'error';\n\t\t\t\tthrow err;\n\t\t\t} );\n\t}\n\n\t/**\n\t * Aborts loading process.\n\t */\n\tpublic abort(): void {\n\t\tconst status = this.status;\n\t\tthis.status = 'aborted';\n\n\t\tif ( !this._filePromiseWrapper.isFulfilled ) {\n\t\t\t// Edge case: file loader is aborted before read() is called\n\t\t\t// so it might happen that no one handled the rejection of this promise.\n\t\t\t// See https://github.com/ckeditor/ckeditor5-upload/pull/100\n\t\t\tthis._filePromiseWrapper.promise.catch( () => {} );\n\n\t\t\tthis._filePromiseWrapper.rejecter( 'aborted' );\n\t\t} else if ( status == 'reading' ) {\n\t\t\tthis._reader.abort();\n\t\t} else if ( status == 'uploading' && this._adapter.abort ) {\n\t\t\tthis._adapter.abort();\n\t\t}\n\n\t\tthis._destroy();\n\t}\n\n\t/**\n\t * Performs cleanup.\n\t *\n\t * @internal\n\t */\n\tpublic _destroy(): void {\n\t\tthis._filePromiseWrapper = undefined as any;\n\t\tthis._reader = undefined as any;\n\t\tthis._adapter = undefined as any;\n\t\tthis.uploadResponse = undefined;\n\t}\n\n\t/**\n\t * Wraps a given file promise into another promise giving additional\n\t * control (resolving, rejecting, checking if fulfilled) over it.\n\t *\n\t * @private\n\t * @param filePromise The initial file promise to be wrapped.\n\t * @returns {module:upload/filerepository~FilePromiseWrapper}\n\t */\n\tprivate _createFilePromiseWrapper( filePromise: Promise<File> ): FilePromiseWrapper {\n\t\tconst wrapper: Partial<FilePromiseWrapper> = {};\n\n\t\twrapper.promise = new Promise<File>( ( resolve, reject ) => {\n\t\t\twrapper.rejecter = reject;\n\t\t\twrapper.isFulfilled = false;\n\n\t\t\tfilePromise\n\t\t\t\t.then( file => {\n\t\t\t\t\twrapper.isFulfilled = true;\n\t\t\t\t\tresolve( file );\n\t\t\t\t} )\n\t\t\t\t.catch( err => {\n\t\t\t\t\twrapper.isFulfilled = true;\n\t\t\t\t\treject( err );\n\t\t\t\t} );\n\t\t} );\n\n\t\treturn wrapper as FilePromiseWrapper;\n\t}\n}\n\nexport type { FileLoader };\n\n/**\n * Upload adapter interface used by the {@link module:upload/filerepository~FileRepository file repository}\n * to handle file upload. An upload adapter is a bridge between the editor and server that handles file uploads.\n * It should contain a logic necessary to initiate an upload process and monitor its progress.\n *\n * Learn how to develop your own upload adapter for CKEditor 5 in the\n * {@glink framework/guides/deep-dive/upload-adapter \"Custom upload adapter\" guide}.\n *\n * @interface UploadAdapter\n */\nexport interface UploadAdapter {\n\tupload(): Promise<UploadResponse>;\n\tabort?(): void;\n}\n\nexport type UploadResponse = Record<string, unknown>;\n\n/**\n * Executes the upload process.\n * This method should return a promise that will resolve when data will be uploaded to server. Promise should be\n * resolved with an object containing information about uploaded file:\n *\n *\t\t{\n *\t\t\tdefault: 'http://server/default-size.image.png'\n *\t\t}\n *\n * Additionally, other image sizes can be provided:\n *\n *\t\t{\n *\t\t\tdefault: 'http://server/default-size.image.png',\n *\t\t\t'160': 'http://server/size-160.image.png',\n *\t\t\t'500': 'http://server/size-500.image.png',\n *\t\t\t'1000': 'http://server/size-1000.image.png',\n *\t\t\t'1052': 'http://server/default-size.image.png'\n *\t\t}\n *\n * You can also pass additional properties from the server. In this case you need to wrap URLs\n * in the `urls` object and pass additional properties along the `urls` property.\n *\n * \t\t{\n * \t\t\tmyCustomProperty: 'foo',\n * \t\t\turls: {\n *\t\t\t\tdefault: 'http://server/default-size.image.png',\n *\t\t\t\t'160': 'http://server/size-160.image.png',\n *\t\t\t\t'500': 'http://server/size-500.image.png',\n *\t\t\t\t'1000': 'http://server/size-1000.image.png',\n *\t\t\t\t'1052': 'http://server/default-size.image.png'\n *\t\t\t}\n *\t\t}\n *\n * NOTE: When returning multiple images, the widest returned one should equal the default one. It is essential to\n * correctly set `width` attribute of the image. See this discussion:\n * https://github.com/ckeditor/ckeditor5-easy-image/issues/4 for more information.\n *\n * Take a look at {@link module:upload/filerepository~UploadAdapter example Adapter implementation} and\n * {@link module:upload/filerepository~FileRepository#createUploadAdapter createUploadAdapter method}.\n *\n * @method module:upload/filerepository~UploadAdapter#upload\n * @returns {Promise.<Object>} Promise that should be resolved when data is uploaded.\n */\n\n/**\n * Aborts the upload process.\n * After aborting it should reject promise returned from {@link #upload upload()}.\n *\n * Take a look at {@link module:upload/filerepository~UploadAdapter example Adapter implementation} and\n * {@link module:upload/filerepository~FileRepository#createUploadAdapter createUploadAdapter method}.\n *\n * @method module:upload/filerepository~UploadAdapter#abort\n */\n\n/**\n * Object returned by {@link module:upload/filerepository~FileLoader#_createFilePromiseWrapper} method\n * to add more control over the initial file promise passed to {@link module:upload/filerepository~FileLoader}.\n *\n * @protected\n * @typedef {Object} module:upload/filerepository~FilePromiseWrapper\n * @property {Promise.<File>} promise Wrapper promise which can be chained for further processing.\n * @property {Function} rejecter Rejects the promise when called.\n * @property {Boolean} isFulfilled Whether original promise is already fulfilled.\n */\ntype FilePromiseWrapper = {\n\tpromise: Promise<File>;\n\trejecter: ( reason?: unknown ) => void;\n\tisFulfilled: boolean;\n};\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ FileRepository.pluginName ]: FileRepository;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module upload/ui/filedialogbuttonview\n */\n\nimport { ButtonView, View, type ButtonExecuteEvent } from '@ckeditor/ckeditor5-ui';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The file dialog button view.\n *\n * This component provides a button that opens the native file selection dialog.\n * It can be used to implement the UI of a file upload feature.\n *\n *\t\tconst view = new FileDialogButtonView( locale );\n *\n *\t\tview.set( {\n *\t\t\tacceptedType: 'image/*',\n *\t\t\tallowMultipleFiles: true\n *\t\t} );\n *\n *\t\tview.buttonView.set( {\n *\t\t\tlabel: t( 'Insert image' ),\n *\t\t\ticon: imageIcon,\n *\t\t\ttooltip: true\n *\t\t} );\n *\n *\t\tview.on( 'done', ( evt, files ) => {\n *\t\t\tfor ( const file of Array.from( files ) ) {\n *\t\t\t\tconsole.log( 'Selected file', file );\n *\t\t\t}\n *\t\t} );\n *\n * @extends module:ui/view~View\n */\nexport default class FileDialogButtonView extends View {\n\tpublic buttonView: ButtonView;\n\n\tprivate _fileInputView: FileInputView;\n\n\tdeclare public acceptedType: string;\n\tdeclare public allowMultipleFiles: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * The button view of the component.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.buttonView = new ButtonView( locale );\n\n\t\t/**\n\t\t * A hidden `<input>` view used to execute file dialog.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:upload/ui/filedialogbuttonview~FileInputView}\n\t\t */\n\t\tthis._fileInputView = new FileInputView( locale );\n\n\t\t/**\n\t\t * Accepted file types. Can be provided in form of file extensions, media type or one of:\n\t\t * * `audio/*`,\n\t\t * * `video/*`,\n\t\t * * `image/*`.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #acceptedType\n\t\t */\n\t\tthis._fileInputView.bind( 'acceptedType' ).to( this );\n\n\t\t/**\n\t\t * Indicates if multiple files can be selected. Defaults to `true`.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #allowMultipleFiles\n\t\t */\n\t\tthis._fileInputView.bind( 'allowMultipleFiles' ).to( this );\n\n\t\t/**\n\t\t * Fired when file dialog is closed with file selected.\n\t\t *\n\t\t *\t\tview.on( 'done', ( evt, files ) => {\n\t\t *\t\t\tfor ( const file of files ) {\n\t\t *\t\t\t\tconsole.log( 'Selected file', file );\n\t\t *\t\t\t}\n\t\t *\t\t}\n\t\t *\n\t\t * @event done\n\t\t * @param {Array.<File>} files Array of selected files.\n\t\t */\n\t\tthis._fileInputView.delegate( 'done' ).to( this );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-file-dialog-button'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis.buttonView,\n\t\t\t\tthis._fileInputView\n\t\t\t]\n\t\t} );\n\n\t\tthis.buttonView.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\tthis._fileInputView.open();\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the {@link #buttonView}.\n\t */\n\tpublic focus(): void {\n\t\tthis.buttonView.focus();\n\t}\n}\n\n/**\n * The hidden file input view class.\n *\n * @private\n * @extends module:ui/view~View\n */\nclass FileInputView extends View<HTMLInputElement> {\n\tdeclare public acceptedType?: string;\n\tdeclare public allowMultipleFiles: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * Accepted file types. Can be provided in form of file extensions, media type or one of:\n\t\t * * `audio/*`,\n\t\t * * `video/*`,\n\t\t * * `image/*`.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #acceptedType\n\t\t */\n\t\tthis.set( 'acceptedType', undefined );\n\n\t\t/**\n\t\t * Indicates if multiple files can be selected. Defaults to `false`.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #allowMultipleFiles\n\t\t */\n\t\tthis.set( 'allowMultipleFiles', false );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'input',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-hidden'\n\t\t\t\t],\n\t\t\t\ttype: 'file',\n\t\t\t\ttabindex: '-1',\n\t\t\t\taccept: bind.to( 'acceptedType' ),\n\t\t\t\tmultiple: bind.to( 'allowMultipleFiles' )\n\t\t\t},\n\n\t\t\ton: {\n\t\t\t\t// Removing from code coverage since we cannot programmatically set input element files.\n\t\t\t\tchange: bind.to( /* istanbul ignore next */ () => {\n\t\t\t\t\tif ( this.element && this.element.files && this.element.files.length ) {\n\t\t\t\t\t\tthis.fire( 'done', this.element.files );\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.element!.value = '';\n\t\t\t\t} )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Opens file dialog.\n\t */\n\tpublic open(): void {\n\t\tthis.element!.click();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals window, document */\n\n/**\n * @module adapter-ckfinder/utils\n */\n\nconst TOKEN_COOKIE_NAME = 'ckCsrfToken';\nconst TOKEN_LENGTH = 40;\nconst tokenCharset = 'abcdefghijklmnopqrstuvwxyz0123456789';\n\n/**\n * Returns the CSRF token value. The value is a hash stored in `document.cookie`\n * under the `ckCsrfToken` key. The CSRF token can be used to secure the communication\n * between the web browser and the CKFinder server.\n *\n * @returns {String}\n */\nexport function getCsrfToken() {\n\tlet token = getCookie( TOKEN_COOKIE_NAME );\n\n\tif ( !token || token.length != TOKEN_LENGTH ) {\n\t\ttoken = generateToken( TOKEN_LENGTH );\n\t\tsetCookie( TOKEN_COOKIE_NAME, token );\n\t}\n\n\treturn token;\n}\n\n/**\n * Returns the value of the cookie with a given name or `null` if the cookie is not found.\n *\n * @param {String} name\n * @returns {String|null}\n */\nexport function getCookie( name ) {\n\tname = name.toLowerCase();\n\tconst parts = document.cookie.split( ';' );\n\n\tfor ( const part of parts ) {\n\t\tconst pair = part.split( '=' );\n\t\tconst key = decodeURIComponent( pair[ 0 ].trim().toLowerCase() );\n\n\t\tif ( key === name ) {\n\t\t\treturn decodeURIComponent( pair[ 1 ] );\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Sets the value of the cookie with a given name.\n *\n * @param {String} name\n * @param {String} value\n */\nexport function setCookie( name, value ) {\n\tdocument.cookie = encodeURIComponent( name ) + '=' + encodeURIComponent( value ) + ';path=/';\n}\n\n// Generates the CSRF token with the given length.\n//\n// @private\n// @param {Number} length\n// @returns {string}\nfunction generateToken( length ) {\n\tlet result = '';\n\tconst randValues = new Uint8Array( length );\n\n\twindow.crypto.getRandomValues( randValues );\n\n\tfor ( let j = 0; j < randValues.length; j++ ) {\n\t\tconst character = tokenCharset.charAt( randValues[ j ] % tokenCharset.length );\n\t\tresult += Math.random() > 0.5 ? character.toUpperCase() : character;\n\t}\n\n\treturn result;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals XMLHttpRequest, FormData */\n\n/**\n * @module adapter-ckfinder/uploadadapter\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { FileRepository } from 'ckeditor5/src/upload';\n\nimport { getCsrfToken } from './utils';\n\n/**\n * A plugin that enables file uploads in CKEditor 5 using the CKFinder server–side connector.\n *\n * See the {@glink features/images/image-upload/ckfinder \"CKFinder file manager integration\" guide} to learn how to configure\n * and use this feature as well as find out more about the full integration with the file manager\n * provided by the {@link module:ckfinder/ckfinder~CKFinder} plugin.\n *\n * Check out the {@glink features/images/image-upload/image-upload comprehensive \"Image upload overview\"} to learn about\n * other ways to upload images into CKEditor 5.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class CKFinderUploadAdapter extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FileRepository ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'CKFinderUploadAdapter';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst url = this.editor.config.get( 'ckfinder.uploadUrl' );\n\n\t\tif ( !url ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Register CKFinderAdapter\n\t\tthis.editor.plugins.get( FileRepository ).createUploadAdapter = loader => new UploadAdapter( loader, url, this.editor.t );\n\t}\n}\n\n/**\n * Upload adapter for CKFinder.\n *\n * @private\n * @implements module:upload/filerepository~UploadAdapter\n */\nclass UploadAdapter {\n\t/**\n\t * Creates a new adapter instance.\n\t *\n\t * @param {module:upload/filerepository~FileLoader} loader\n\t * @param {String} url\n\t * @param {module:utils/locale~Locale#t} t\n\t */\n\tconstructor( loader, url, t ) {\n\t\t/**\n\t\t * FileLoader instance to use during the upload.\n\t\t *\n\t\t * @member {module:upload/filerepository~FileLoader} #loader\n\t\t */\n\t\tthis.loader = loader;\n\n\t\t/**\n\t\t * Upload URL.\n\t\t *\n\t\t * @member {String} #url\n\t\t */\n\t\tthis.url = url;\n\n\t\t/**\n\t\t * Locale translation method.\n\t\t *\n\t\t * @member {module:utils/locale~Locale#t} #t\n\t\t */\n\t\tthis.t = t;\n\t}\n\n\t/**\n\t * Starts the upload process.\n\t *\n\t * @see module:upload/filerepository~UploadAdapter#upload\n\t * @returns {Promise.<Object>}\n\t */\n\tupload() {\n\t\treturn this.loader.file.then( file => {\n\t\t\treturn new Promise( ( resolve, reject ) => {\n\t\t\t\tthis._initRequest();\n\t\t\t\tthis._initListeners( resolve, reject, file );\n\t\t\t\tthis._sendRequest( file );\n\t\t\t} );\n\t\t} );\n\t}\n\n\t/**\n\t * Aborts the upload process.\n\t *\n\t * @see module:upload/filerepository~UploadAdapter#abort\n\t */\n\tabort() {\n\t\tif ( this.xhr ) {\n\t\t\tthis.xhr.abort();\n\t\t}\n\t}\n\n\t/**\n\t * Initializes the XMLHttpRequest object.\n\t *\n\t * @private\n\t */\n\t_initRequest() {\n\t\tconst xhr = this.xhr = new XMLHttpRequest();\n\n\t\txhr.open( 'POST', this.url, true );\n\t\txhr.responseType = 'json';\n\t}\n\n\t/**\n\t * Initializes XMLHttpRequest listeners.\n\t *\n\t * @private\n\t * @param {Function} resolve Callback function to be called when the request is successful.\n\t * @param {Function} reject Callback function to be called when the request cannot be completed.\n\t * @param {File} file File instance to be uploaded.\n\t */\n\t_initListeners( resolve, reject, file ) {\n\t\tconst xhr = this.xhr;\n\t\tconst loader = this.loader;\n\t\tconst t = this.t;\n\t\tconst genericError = t( 'Cannot upload file:' ) + ` ${ file.name }.`;\n\n\t\txhr.addEventListener( 'error', () => reject( genericError ) );\n\t\txhr.addEventListener( 'abort', () => reject() );\n\t\txhr.addEventListener( 'load', () => {\n\t\t\tconst response = xhr.response;\n\n\t\t\tif ( !response || !response.uploaded ) {\n\t\t\t\treturn reject( response && response.error && response.error.message ? response.error.message : genericError );\n\t\t\t}\n\n\t\t\tresolve( {\n\t\t\t\tdefault: response.url\n\t\t\t} );\n\t\t} );\n\n\t\t// Upload progress when it's supported.\n\t\t/* istanbul ignore else */\n\t\tif ( xhr.upload ) {\n\t\t\txhr.upload.addEventListener( 'progress', evt => {\n\t\t\t\tif ( evt.lengthComputable ) {\n\t\t\t\t\tloader.uploadTotal = evt.total;\n\t\t\t\t\tloader.uploaded = evt.loaded;\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Prepares the data and sends the request.\n\t *\n\t * @private\n\t * @param {File} file File instance to be uploaded.\n\t */\n\t_sendRequest( file ) {\n\t\t// Prepare form data.\n\t\tconst data = new FormData();\n\t\tdata.append( 'upload', file );\n\t\tdata.append( 'ckCsrfToken', getCsrfToken() );\n\n\t\t// Send request.\n\t\tthis.xhr.send( data );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/utils/changebuffer\n */\n\nimport type {\n\tModel,\n\tBatch,\n\tDocumentChangeEvent,\n\tDocumentSelectionChangeEvent\n} from '@ckeditor/ckeditor5-engine';\n\nimport type { EventInfo } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Change buffer allows to group atomic changes (like characters that have been typed) into\n * {@link module:engine/model/batch~Batch batches}.\n *\n * Batches represent single undo steps, hence changes added to one single batch are undone together.\n *\n * The buffer has a configurable limit of atomic changes that it can accommodate. After the limit was\n * exceeded (see {@link ~ChangeBuffer#input}), a new batch is created in {@link ~ChangeBuffer#batch}.\n *\n * To use the change buffer you need to let it know about the number of changes that were added to the batch:\n *\n *\t\tconst buffer = new ChangeBuffer( model, LIMIT );\n *\n *\t\t// Later on in your feature:\n *\t\tbuffer.batch.insert( pos, insertedCharacters );\n *\t\tbuffer.input( insertedCharacters.length );\n *\n */\nexport default class ChangeBuffer {\n\tpublic readonly model: Model;\n\tpublic readonly limit: number;\n\n\tprivate _isLocked: boolean;\n\tprivate _size: number;\n\tprivate _batch: Batch | null = null;\n\tprivate readonly _changeCallback: ( evt: EventInfo, batch: Batch ) => void;\n\tprivate readonly _selectionChangeCallback: () => void;\n\n\t/**\n\t * Creates a new instance of the change buffer.\n\t *\n\t * @param {module:engine/model/model~Model} model\n\t * @param {Number} [limit=20] The maximum number of atomic changes which can be contained in one batch.\n\t */\n\tconstructor( model: Model, limit: number = 20 ) {\n\t\t/**\n\t\t * The model instance.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/model~Model} #model\n\t\t */\n\t\tthis.model = model;\n\n\t\t/**\n\t\t * The number of atomic changes in the buffer. Once it exceeds the {@link #limit},\n\t\t * the {@link #batch batch} is set to a new one.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} #size\n\t\t */\n\t\tthis._size = 0;\n\n\t\t/**\n\t\t * The maximum number of atomic changes which can be contained in one batch.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} #limit\n\t\t */\n\t\tthis.limit = limit;\n\n\t\t/**\n\t\t * Whether the buffer is locked. A locked buffer cannot be reset unless it gets unlocked.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} #isLocked\n\t\t */\n\t\tthis._isLocked = false;\n\n\t\t// The function to be called in order to notify the buffer about batches which appeared in the document.\n\t\t// The callback will check whether it is a new batch and in that case the buffer will be flushed.\n\t\t//\n\t\t// The reason why the buffer needs to be flushed whenever a new batch appears is that the changes added afterwards\n\t\t// should be added to a new batch. For instance, when the user types, then inserts an image, and then types again,\n\t\t// the characters typed after inserting the image should be added to a different batch than the characters typed before.\n\t\tthis._changeCallback = ( evt, batch ) => {\n\t\t\tif ( batch.isLocal && batch.isUndoable && batch !== this._batch ) {\n\t\t\t\tthis._reset( true );\n\t\t\t}\n\t\t};\n\n\t\tthis._selectionChangeCallback = () => {\n\t\t\tthis._reset();\n\t\t};\n\n\t\tthis.model.document.on<DocumentChangeEvent>( 'change', this._changeCallback );\n\n\t\tthis.model.document.selection.on<DocumentSelectionChangeEvent>( 'change:range', this._selectionChangeCallback );\n\t\tthis.model.document.selection.on<DocumentSelectionChangeEvent>( 'change:attribute', this._selectionChangeCallback );\n\n\t\t/**\n\t\t * The current batch instance.\n\t\t *\n\t\t * @private\n\t\t * @member #_batch\n\t\t */\n\n\t\t/**\n\t\t * The callback to document the change event which later needs to be removed.\n\t\t *\n\t\t * @private\n\t\t * @member #_changeCallback\n\t\t */\n\n\t\t/**\n\t\t * The callback to document selection `change:attribute` and `change:range` events which resets the buffer.\n\t\t *\n\t\t * @private\n\t\t * @member #_selectionChangeCallback\n\t\t */\n\t}\n\n\t/**\n\t * The current batch to which a feature should add its operations. Once the {@link #size}\n\t * is reached or exceeds the {@link #limit}, the batch is set to a new instance and the size is reset.\n\t *\n\t * @type {module:engine/model/batch~Batch}\n\t */\n\tpublic get batch(): Batch {\n\t\tif ( !this._batch ) {\n\t\t\tthis._batch = this.model.createBatch( { isTyping: true } );\n\t\t}\n\n\t\treturn this._batch;\n\t}\n\n\t/**\n\t * The number of atomic changes in the buffer. Once it exceeds the {@link #limit},\n\t * the {@link #batch batch} is set to a new one.\n\t */\n\tpublic get size(): number {\n\t\treturn this._size;\n\t}\n\n\t/**\n\t * The input number of changes into the buffer. Once the {@link #size} is\n\t * reached or exceeds the {@link #limit}, the batch is set to a new instance and the size is reset.\n\t *\n\t * @param {Number} changeCount The number of atomic changes to input.\n\t */\n\tpublic input( changeCount: number ): void {\n\t\tthis._size += changeCount;\n\n\t\tif ( this._size >= this.limit ) {\n\t\t\tthis._reset( true );\n\t\t}\n\t}\n\n\t/**\n\t * Whether the buffer is locked. A locked buffer cannot be reset unless it gets unlocked.\n\t */\n\tpublic get isLocked(): boolean {\n\t\treturn this._isLocked;\n\t}\n\n\t/**\n\t * Locks the buffer.\n\t */\n\tpublic lock(): void {\n\t\tthis._isLocked = true;\n\t}\n\n\t/**\n\t * Unlocks the buffer.\n\t */\n\tpublic unlock(): void {\n\t\tthis._isLocked = false;\n\t}\n\n\t/**\n\t * Destroys the buffer.\n\t */\n\tpublic destroy(): void {\n\t\tthis.model.document.off( 'change', this._changeCallback );\n\t\tthis.model.document.selection.off( 'change:range', this._selectionChangeCallback );\n\t\tthis.model.document.selection.off( 'change:attribute', this._selectionChangeCallback );\n\t}\n\n\t/**\n\t * Resets the change buffer.\n\t *\n\t * @private\n\t * @param {Boolean} [ignoreLock] Whether internal lock {@link #isLocked} should be ignored.\n\t */\n\tprivate _reset( ignoreLock: boolean = false ): void {\n\t\tif ( !this.isLocked || ignoreLock ) {\n\t\t\tthis._batch = null;\n\t\t\tthis._size = 0;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/inserttextcommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport ChangeBuffer from './utils/changebuffer';\n\nimport type { DocumentSelection, Range, Selection } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The insert text command. Used by the {@link module:typing/input~Input input feature} to handle typing.\n *\n * @extends module:core/command~Command\n */\nexport default class InsertTextCommand extends Command {\n\tprivate readonly _buffer: ChangeBuffer;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor\n\t * @param {Number} undoStepSize The maximum number of atomic changes\n\t * which can be contained in one batch in the command buffer.\n\t */\n\tconstructor( editor: Editor, undoStepSize: number ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * Typing's change buffer used to group subsequent changes into batches.\n\t\t *\n\t\t * @readonly\n\t\t * @private\n\t\t * @member {module:typing/utils/changebuffer~ChangeBuffer} #_buffer\n\t\t */\n\t\tthis._buffer = new ChangeBuffer( editor.model, undoStepSize );\n\t}\n\n\t/**\n\t * The current change buffer.\n\t *\n\t * @type {module:typing/utils/changebuffer~ChangeBuffer}\n\t */\n\tpublic get buffer(): ChangeBuffer {\n\t\treturn this._buffer;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._buffer.destroy();\n\t}\n\n\t/**\n\t * Executes the input command. It replaces the content within the given range with the given text.\n\t * Replacing is a two step process, first the content within the range is removed and then the new text is inserted\n\t * at the beginning of the range (which after the removal is a collapsed range).\n\t *\n\t * @fires execute\n\t * @param {Object} [options] The command options.\n\t * @param {String} [options.text=''] The text to be inserted.\n\t * @param {module:engine/model/selection~Selection} [options.selection] The selection in which the text is inserted.\n\t * Inserting a text into a selection deletes the current content within selection ranges. If the selection is not specified,\n\t * the current selection in the model will be used instead.\n\t * // TODO note that those 2 options are exclusive (either selection or range)\n\t * @param {module:engine/model/range~Range} [options.range] The range in which the text is inserted. Defaults\n\t * to the first range in the current selection.\n\t * @param {module:engine/model/range~Range} [options.resultRange] The range where the selection\n\t * should be placed after the insertion. If not specified, the selection will be placed right after\n\t * the inserted text.\n\t */\n\tpublic override execute( options: {\n\t\ttext?: string;\n\t\tselection?: Selection | DocumentSelection;\n\t\trange?: Range;\n\t\tresultRange?: Range;\n\t} = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst text = options.text || '';\n\t\tconst textInsertions = text.length;\n\n\t\tlet selection: Selection | DocumentSelection = doc.selection;\n\n\t\tif ( options.selection ) {\n\t\t\tselection = options.selection;\n\t\t} else if ( options.range ) {\n\t\t\tselection = model.createSelection( options.range );\n\t\t}\n\n\t\tconst resultRange = options.resultRange;\n\n\t\tmodel.enqueueChange( this._buffer.batch, writer => {\n\t\t\tthis._buffer.lock();\n\n\t\t\tmodel.deleteContent( selection );\n\n\t\t\tif ( text ) {\n\t\t\t\tmodel.insertContent( writer.createText( text, doc.selection.getAttributes() ), selection );\n\t\t\t}\n\n\t\t\tif ( resultRange ) {\n\t\t\t\twriter.setSelection( resultRange );\n\t\t\t} else if ( !selection.is( 'documentSelection' ) ) {\n\t\t\t\twriter.setSelection( selection );\n\t\t\t}\n\n\t\t\tthis._buffer.unlock();\n\n\t\t\tthis._buffer.input( textInsertions );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/inserttextobserver\n */\n\nimport { env, EventInfo } from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tDomEventData,\n\tObserver,\n\ttype View,\n\ttype ViewDocumentCompositionEvent,\n\ttype ViewDocumentInputEvent,\n\ttype ViewDocumentSelection,\n\ttype ViewRange,\n\ttype ViewSelection\n} from '@ckeditor/ckeditor5-engine';\n\nconst TYPING_INPUT_TYPES = [\n\t// For collapsed range:\n\t//\t- This one is a regular typing (all browsers, all systems).\n\t//\t- This one is used by Chrome when typing accented letter – 2nd step when the user selects the accent (Mac).\n\t// For non-collapsed range:\n\t//\t- This one is used by Chrome when typing accented letter – when the selection box first appears (Mac).\n\t//\t- This one is used by Safari when accepting spell check suggestions from the context menu (Mac).\n\t'insertText',\n\n\t// This one is used by Safari when typing accented letter (Mac).\n\t// This one is used by Safari when accepting spell check suggestions from the autocorrection pop-up (Mac).\n\t'insertReplacementText'\n];\n\n/**\n * Text insertion observer introduces the {@link module:engine/view/document~Document#event:insertText} event.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class InsertTextObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\t// On Android composition events should immediately be applied to the model. Rendering is not disabled.\n\t\t// On non-Android the model is updated only on composition end.\n\t\t// On Android we can't rely on composition start/end to update model.\n\t\tif ( env.isAndroid ) {\n\t\t\tTYPING_INPUT_TYPES.push( 'insertCompositionText' );\n\t\t}\n\n\t\tconst viewDocument = view.document;\n\n\t\tviewDocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { data: text, targetRanges, inputType, domEvent } = data;\n\n\t\t\tif ( !TYPING_INPUT_TYPES.includes( inputType ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst eventInfo = new EventInfo( viewDocument, 'insertText' );\n\n\t\t\tviewDocument.fire( eventInfo, new DomEventData( view, domEvent, {\n\t\t\t\ttext,\n\t\t\t\tselection: view.createSelection( targetRanges )\n\t\t\t} ) );\n\n\t\t\t// Stop the beforeinput event if `delete` event was stopped.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/753\n\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\n\t\t// Note: The priority must be lower than the CompositionObserver handler to call it after the renderer is unblocked.\n\t\tviewDocument.on<ViewDocumentCompositionEvent>( 'compositionend', ( evt, { data, domEvent } ) => {\n\t\t\t// On Android composition events are immediately applied to the model.\n\t\t\t// On non-Android the model is updated only on composition end.\n\t\t\t// On Android we can't rely on composition start/end to update model.\n\t\t\tif ( !this.isEnabled || env.isAndroid ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// In case of aborted composition.\n\t\t\tif ( !data ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( `%c[InsertTextObserver]%c Fire insertText event, text: ${ JSON.stringify( data ) }`,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// How do we know where to insert the composed text?\n\t\t\t// The selection observer is blocked and the view is not updated with the composition changes.\n\t\t\t// There were three options:\n\t\t\t//   - Store the selection on `compositionstart` and use it now. This wouldn't work in RTC\n\t\t\t//     where the view would change and the stored selection might get incorrect.\n\t\t\t//     We'd need to fallback to the current view selection anyway.\n\t\t\t//   - Use the current view selection. This is a bit weird and non-intuitive because\n\t\t\t//     this isn't necessarily the selection on which the user started composing.\n\t\t\t//     We cannot even know whether it's still collapsed (there might be some weird\n\t\t\t//     editor feature that changed it in unpredictable ways for us). But it's by far\n\t\t\t//     the simplest solution and should be stable (the selection is definitely correct)\n\t\t\t//     and probably mostly predictable (features usually don't modify the selection\n\t\t\t//     unless called explicitly by the user).\n\t\t\t//   - Try to follow it from the `beforeinput` events. This would be really complex as each\n\t\t\t//     `beforeinput` would come with just the range it's changing and we'd need to calculate that.\n\t\t\t// We decided to go with the 2nd option for its simplicity and stability.\n\t\t\tviewDocument.fire( 'insertText', new DomEventData( view, domEvent, {\n\t\t\t\ttext: data,\n\t\t\t\tselection: viewDocument.selection\n\t\t\t} ) );\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe(): void {}\n}\n\n/**\n * Event fired when the user types text, for instance presses <kbd>A</kbd> or <kbd>?</kbd> in the\n * editing view document.\n *\n * **Note**: This event will **not** fire for keystrokes such as <kbd>Delete</kbd> or <kbd>Enter</kbd>.\n * They have dedicated events, see {@link module:engine/view/document~Document#event:delete} and\n * {@link module:engine/view/document~Document#event:enter} to learn more.\n *\n * **Note**: This event is fired by the {@link module:typing/inserttextobserver~InsertTextObserver input feature}.\n *\n * @event module:engine/view/document~Document#event:insertText\n * @param {module:engine/view/observer/domeventdata~DomEventData} data\n * @param {String} data.text The text to be inserted.\n * @param {module:engine/view/selection~Selection} [data.selection] The selection into which the text should be inserted.\n * If not specified, the insertion should occur at the current view selection.\n * @param {module:engine/view/range~Range} [data.resultRange] The range that view selection should be set to after insertion.\n */\nexport type ViewDocumentInsertTextEvent = {\n\tname: 'insertText';\n\targs: [ data: InsertTextEventData ];\n};\n\nexport interface InsertTextEventData extends DomEventData {\n\ttext: string;\n\tselection: ViewSelection | ViewDocumentSelection;\n\tresultRange?: ViewRange;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/input\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { env } from '@ckeditor/ckeditor5-utils';\n\nimport InsertTextCommand from './inserttextcommand';\nimport InsertTextObserver, { type ViewDocumentInsertTextEvent } from './inserttextobserver';\n\nimport type { Model } from '@ckeditor/ckeditor5-engine';\n\n// Import config.typing declaration.\nimport './typingconfig';\n\n/**\n * Handles text input coming from the keyboard or other input methods.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Input extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Input' {\n\t\treturn 'Input';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst modelSelection = model.document.selection;\n\n\t\tview.addObserver( InsertTextObserver );\n\n\t\t// TODO The above default configuration value should be defined using editor.config.define() once it's fixed.\n\t\tconst insertTextCommand = new InsertTextCommand( editor, editor.config.get( 'typing.undoStep' ) || 20 );\n\n\t\t// Register `insertText` command and add `input` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'insertText', insertTextCommand );\n\t\teditor.commands.add( 'input', insertTextCommand );\n\n\t\tthis.listenTo<ViewDocumentInsertTextEvent>( view.document, 'insertText', ( evt, data ) => {\n\t\t\t// Rendering is disabled while composing so prevent events that will be rendered by the engine\n\t\t\t// and should not be applied by the browser.\n\t\t\tif ( !view.document.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\tconst { text, selection: viewSelection, resultRange: viewResultRange } = data;\n\n\t\t\t// If view selection was specified, translate it to model selection.\n\t\t\tconst modelRanges = Array.from( viewSelection.getRanges() ).map( viewRange => {\n\t\t\t\treturn editor.editing.mapper.toModelRange( viewRange );\n\t\t\t} );\n\n\t\t\tlet insertText = text;\n\n\t\t\t// Typing in English on Android is firing composition events for the whole typed word.\n\t\t\t// We need to check the target range text to only apply the difference.\n\t\t\tif ( env.isAndroid ) {\n\t\t\t\tconst selectedText = Array.from( modelRanges[ 0 ].getItems() ).reduce( ( rangeText, node ) => {\n\t\t\t\t\treturn rangeText + ( node.is( '$textProxy' ) ? node.data : '' );\n\t\t\t\t}, '' );\n\n\t\t\t\tif ( selectedText ) {\n\t\t\t\t\tif ( selectedText.length <= insertText.length ) {\n\t\t\t\t\t\tif ( insertText.startsWith( selectedText ) ) {\n\t\t\t\t\t\t\tinsertText = insertText.substring( selectedText.length );\n\t\t\t\t\t\t\t( modelRanges[ 0 ] as any ).start = modelRanges[ 0 ].start.getShiftedBy( selectedText.length );\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif ( selectedText.startsWith( insertText ) ) {\n\t\t\t\t\t\t\t// TODO this should be mapped as delete?\n\t\t\t\t\t\t\t( modelRanges[ 0 ] as any ).start = modelRanges[ 0 ].start.getShiftedBy( insertText.length );\n\t\t\t\t\t\t\tinsertText = '';\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst insertTextCommandData: Parameters<InsertTextCommand[ 'execute' ]>[ 0 ] = {\n\t\t\t\ttext: insertText,\n\t\t\t\tselection: model.createSelection( modelRanges )\n\t\t\t};\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[Input]%c Execute insertText:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\tinsertText,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ modelRanges[ 0 ].start.path }]-[${ modelRanges[ 0 ].end.path }]`\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\tif ( viewResultRange ) {\n\t\t\t\tinsertTextCommandData.resultRange = editor.editing.mapper.toModelRange( viewResultRange );\n\t\t\t}\n\n\t\t\teditor.execute( 'insertText', insertTextCommandData );\n\t\t} );\n\n\t\tif ( env.isAndroid ) {\n\t\t\t// On Android with English keyboard, the composition starts just by putting caret\n\t\t\t// at the word end or by selecting a table column. This is not a real composition started.\n\t\t\t// Trigger delete content on first composition key pressed.\n\t\t\tthis.listenTo( view.document, 'keydown', ( evt, data ) => {\n\t\t\t\tif ( modelSelection.isCollapsed || data.keyCode != 229 || !view.document.isComposing ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[Input]%c KeyDown 229 -> model.deleteContent()',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ modelSelection.getFirstPosition().path }]-[${ modelSelection.getLastPosition().path }]`\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tdeleteSelectionContent( model, insertTextCommand );\n\t\t\t} );\n\t\t} else {\n\t\t\t// Note: The priority must precede the CompositionObserver handler to call it before\n\t\t\t// the renderer is blocked, because we want to render this change.\n\t\t\tthis.listenTo( view.document, 'compositionstart', () => {\n\t\t\t\tif ( modelSelection.isCollapsed ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[Input]%c Composition start -> model.deleteContent()',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ modelSelection.getFirstPosition().path }]-[${ modelSelection.getLastPosition().path }]`\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tdeleteSelectionContent( model, insertTextCommand );\n\t\t\t} );\n\t\t}\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface CommandsMap {\n\t\tinsertText: InsertTextCommand;\n\t}\n\n\tinterface PluginsMap {\n\t\t[ Input.pluginName ]: Input;\n\t}\n}\n\nfunction deleteSelectionContent( model: Model, insertTextCommand: InsertTextCommand ): void {\n\t// By relying on the state of the input command we allow disabling the entire input easily\n\t// by just disabling the input command. We could’ve used here the delete command but that\n\t// would mean requiring the delete feature which would block loading one without the other.\n\t// We could also check the editor.isReadOnly property, but that wouldn't allow to block\n\t// the input without blocking other features.\n\tif ( !insertTextCommand.isEnabled ) {\n\t\treturn;\n\t}\n\n\tconst buffer = insertTextCommand.buffer;\n\n\tbuffer.lock();\n\n\tmodel.enqueueChange( buffer.batch, () => {\n\t\tmodel.deleteContent( model.document.selection );\n\t} );\n\n\tbuffer.unlock();\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/deletecommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\nimport { count } from '@ckeditor/ckeditor5-utils';\nimport type { DocumentSelection, Element, Selection, Writer } from '@ckeditor/ckeditor5-engine';\n\nimport ChangeBuffer from './utils/changebuffer';\n\n// Import config.typing declaration.\nimport './typingconfig';\n\n/**\n * The delete command. Used by the {@link module:typing/delete~Delete delete feature} to handle the <kbd>Delete</kbd> and\n * <kbd>Backspace</kbd> keys.\n *\n * @extends module:core/command~Command\n */\nexport default class DeleteCommand extends Command {\n\tpublic readonly direction: 'forward' | 'backward';\n\n\tprivate readonly _buffer: ChangeBuffer;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor\n\t * @param {'forward'|'backward'} direction The directionality of the delete describing in what direction it\n\t * should consume the content when the selection is collapsed.\n\t */\n\tconstructor( editor: Editor, direction: 'forward' | 'backward' ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The directionality of the delete describing in what direction it should\n\t\t * consume the content when the selection is collapsed.\n\t\t *\n\t\t * @readonly\n\t\t * @member {'forward'|'backward'} #direction\n\t\t */\n\t\tthis.direction = direction;\n\n\t\t/**\n\t\t * Delete's change buffer used to group subsequent changes into batches.\n\t\t *\n\t\t * @readonly\n\t\t * @private\n\t\t * @type {module:typing/utils/changebuffer~ChangeBuffer}\n\t\t */\n\t\tthis._buffer = new ChangeBuffer( editor.model, editor.config.get( 'typing.undoStep' ) );\n\t}\n\n\t/**\n\t * The current change buffer.\n\t *\n\t * @type {module:typing/utils/changebuffer~ChangeBuffer}\n\t */\n\tpublic get buffer(): ChangeBuffer {\n\t\treturn this._buffer;\n\t}\n\n\t/**\n\t * Executes the delete command. Depending on whether the selection is collapsed or not, deletes its content\n\t * or a piece of content in the {@link #direction defined direction}.\n\t *\n\t * @fires execute\n\t * @param {Object} [options] The command options.\n\t * @param {'character'|'codePoint'|'word'} [options.unit='character']\n\t * See {@link module:engine/model/utils/modifyselection~modifySelection}'s options.\n\t * @param {Number} [options.sequence=1] A number describing which subsequent delete event it is without the key being released.\n\t * See the {@link module:engine/view/document~Document#event:delete} event data.\n\t * @param {module:engine/model/selection~Selection} [options.selection] Selection to remove. If not set, current model selection\n\t * will be used.\n\t */\n\tpublic override execute( options: {\n\t\tunit?: 'character' | 'codePoint' | 'word';\n\t\tsequence?: number;\n\t\tselection?: Selection | DocumentSelection;\n\t} = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tmodel.enqueueChange( this._buffer.batch, writer => {\n\t\t\tthis._buffer.lock();\n\n\t\t\tconst selection = writer.createSelection( options.selection || doc.selection );\n\t\t\tconst sequence = options.sequence || 1;\n\n\t\t\t// Do not replace the whole selected content if selection was collapsed.\n\t\t\t// This prevents such situation:\n\t\t\t//\n\t\t\t// <h1></h1><p>[]</p>\t-->  <h1>[</h1><p>]</p> \t\t-->  <p></p>\n\t\t\t// starting content\t\t-->   after `modifySelection`\t-->  after `deleteContent`.\n\t\t\tconst doNotResetEntireContent = selection.isCollapsed;\n\n\t\t\t// Try to extend the selection in the specified direction.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tmodel.modifySelection( selection, {\n\t\t\t\t\tdirection: this.direction,\n\t\t\t\t\tunit: options.unit,\n\t\t\t\t\ttreatEmojiAsSingleUnit: true\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Check if deleting in an empty editor. See #61.\n\t\t\tif ( this._shouldEntireContentBeReplacedWithParagraph( sequence ) ) {\n\t\t\t\tthis._replaceEntireContentWithParagraph( writer );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Check if deleting in the first empty block.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/8137.\n\t\t\tif ( this._shouldReplaceFirstBlockWithParagraph( selection, sequence ) ) {\n\t\t\t\tthis.editor.execute( 'paragraph', { selection } );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If selection is still collapsed, then there's nothing to delete.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet changeCount = 0;\n\n\t\t\tselection.getFirstRange()!.getMinimalFlatRanges().forEach( range => {\n\t\t\t\tchangeCount += count(\n\t\t\t\t\trange.getWalker( { singleCharacters: true, ignoreElementEnd: true, shallow: true } )\n\t\t\t\t);\n\t\t\t} );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[DeleteCommand]%c Delete content',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ selection.getFirstPosition().path }]-[${ selection.getLastPosition().path }]`, options\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\tmodel.deleteContent( selection, {\n\t\t\t\tdoNotResetEntireContent,\n\t\t\t\tdirection: this.direction\n\t\t\t} );\n\n\t\t\tthis._buffer.input( changeCount );\n\n\t\t\twriter.setSelection( selection );\n\n\t\t\tthis._buffer.unlock();\n\t\t} );\n\t}\n\n\t/**\n\t * If the user keeps <kbd>Backspace</kbd> or <kbd>Delete</kbd> key pressed, the content of the current\n\t * editable will be cleared. However, this will not yet lead to resetting the remaining block to a paragraph\n\t * (which happens e.g. when the user does <kbd>Ctrl</kbd> + <kbd>A</kbd>, <kbd>Backspace</kbd>).\n\t *\n\t * But, if the user pressed the key in an empty editable for the first time,\n\t * we want to replace the entire content with a paragraph if:\n\t *\n\t * * the current limit element is empty,\n\t * * the paragraph is allowed in the limit element,\n\t * * the limit doesn't already have a paragraph inside.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5-typing/issues/61.\n\t *\n\t * @private\n\t * @param {Number} sequence A number describing which subsequent delete event it is without the key being released.\n\t * @returns {Boolean}\n\t */\n\tprivate _shouldEntireContentBeReplacedWithParagraph( sequence: number ): boolean {\n\t\t// Does nothing if user pressed and held the \"Backspace\" or \"Delete\" key.\n\t\tif ( sequence > 1 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst selection = doc.selection;\n\t\tconst limitElement = model.schema.getLimitElement( selection );\n\n\t\t// If a collapsed selection contains the whole content it means that the content is empty\n\t\t// (from the user perspective).\n\t\tconst limitElementIsEmpty = selection.isCollapsed && selection.containsEntireContent( limitElement );\n\n\t\tif ( !limitElementIsEmpty ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !model.schema.checkChild( limitElement, 'paragraph' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst limitElementFirstChild = limitElement.getChild( 0 );\n\n\t\t// Does nothing if the limit element already contains only a paragraph.\n\t\t// We ignore the case when paragraph might have some inline elements (<p><inlineWidget>[]</inlineWidget></p>)\n\t\t// because we don't support such cases yet and it's unclear whether inlineWidget shouldn't be a limit itself.\n\t\tif ( limitElementFirstChild && limitElementFirstChild.is( 'element', 'paragraph' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * The entire content is replaced with the paragraph. Selection is moved inside the paragraph.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer The model writer.\n\t */\n\tprivate _replaceEntireContentWithParagraph( writer: Writer ): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst selection = doc.selection;\n\t\tconst limitElement = model.schema.getLimitElement( selection );\n\t\tconst paragraph = writer.createElement( 'paragraph' );\n\n\t\twriter.remove( writer.createRangeIn( limitElement ) );\n\t\twriter.insert( paragraph, limitElement );\n\n\t\twriter.setSelection( paragraph, 0 );\n\t}\n\n\t/**\n\t * Checks if the selection is inside an empty element that is the first child of the limit element\n\t * and should be replaced with a paragraph.\n\t *\n\t * @private\n\t * @param {module:engine/model/selection~Selection} selection The selection.\n\t * @param {Number} sequence A number describing which subsequent delete event it is without the key being released.\n\t * @returns {Boolean}\n\t */\n\tprivate _shouldReplaceFirstBlockWithParagraph( selection: Selection, sequence: number ): boolean {\n\t\tconst model = this.editor.model;\n\n\t\t// Does nothing if user pressed and held the \"Backspace\" key or it was a \"Delete\" button.\n\t\tif ( sequence > 1 || this.direction != 'backward' ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst position = selection.getFirstPosition()!;\n\t\tconst limitElement = model.schema.getLimitElement( position );\n\t\tconst limitElementFirstChild = limitElement.getChild( 0 ) as Element;\n\n\t\t// Only elements that are direct children of the limit element can be replaced.\n\t\t// Unwrapping from a block quote should be handled in a dedicated feature.\n\t\tif ( position.parent != limitElementFirstChild ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// A block should be replaced only if it was empty.\n\t\tif ( !selection.containsEntireContent( limitElementFirstChild ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Replace with a paragraph only if it's allowed there.\n\t\tif ( !model.schema.checkChild( limitElement, 'paragraph' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Does nothing if the limit element already contains only a paragraph.\n\t\tif ( limitElementFirstChild.name == 'paragraph' ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/deleteobserver\n */\n\nimport { env, keyCodes } from '@ckeditor/ckeditor5-utils';\nimport {\n\tBubblingEventInfo,\n\tDomEventData,\n\tObserver,\n\ttype BubblingEvent,\n\ttype ViewDocumentInputEvent,\n\ttype ViewDocumentKeyEvent,\n\ttype ViewDocumentSelection,\n\ttype ViewSelection,\n\ttype View\n} from '@ckeditor/ckeditor5-engine';\n\nconst DELETE_CHARACTER = 'character';\nconst DELETE_WORD = 'word';\nconst DELETE_CODE_POINT = 'codePoint';\nconst DELETE_SELECTION = 'selection';\nconst DELETE_BACKWARD = 'backward';\nconst DELETE_FORWARD = 'forward';\n\ntype DeleteEventSpec = {\n\tunit: 'selection' | 'codePoint' | 'character' | 'word';\n\tdirection: 'backward' | 'forward';\n};\n\nconst DELETE_EVENT_TYPES: Record<string, DeleteEventSpec> = {\n\t// --------------------------------------- Backward delete types -----------------------------------------------------\n\n\t// This happens in Safari on Mac when some content is selected and Ctrl + K is pressed.\n\tdeleteContent: {\n\t\tunit: DELETE_SELECTION,\n\n\t\t// According to the Input Events Level 2 spec, this delete type has no direction\n\t\t// but to keep things simple, let's default to backward.\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// Chrome and Safari on Mac: Backspace or Ctrl + H\n\tdeleteContentBackward: {\n\t\t// This kind of deletions must be done on the code point-level instead of target range provided by the DOM beforeinput event.\n\t\t// Take for instance \"👨‍👩‍👧‍👧\", it equals:\n\t\t//\n\t\t//\t* [ \"👨\", \"ZERO WIDTH JOINER\", \"👩\", \"ZERO WIDTH JOINER\", \"👧\", \"ZERO WIDTH JOINER\", \"👧\" ]\n\t\t//\t* or simply \"\\u{1F468}\\u200D\\u{1F469}\\u200D\\u{1F467}\\u200D\\u{1F467}\"\n\t\t//\n\t\t// The range provided by the browser would cause the entire multi-byte grapheme to disappear while the user\n\t\t// intention when deleting backwards (\"👨‍👩‍👧‍👧[]\", then backspace) is gradual \"decomposition\" (first to \"👨‍👩‍👧‍[]\",\n\t\t// then to \"👨‍👩‍[]\", etc.).\n\t\t//\n\t\t//\t* \"👨‍👩‍👧‍👧[]\" + backward delete (by code point)  -> results in \"👨‍👩‍👧[]\", removed the last \"👧\" 👍\n\t\t//\t* \"👨‍👩‍👧‍👧[]\" + backward delete (by character)  -> results in \"[]\", removed the whole grapheme 👎\n\t\t//\n\t\t// Deleting by code-point is simply a better UX. See \"deleteContentForward\" to learn more.\n\t\tunit: DELETE_CODE_POINT,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// On Mac: Option + Backspace.\n\t// On iOS: Hold the backspace for a while and the whole words will start to disappear.\n\tdeleteWordBackward: {\n\t\tunit: DELETE_WORD,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// Safari on Mac: Cmd + Backspace\n\tdeleteHardLineBackward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// Chrome on Mac: Cmd + Backspace.\n\tdeleteSoftLineBackward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\n\t// --------------------------------------- Forward delete types -----------------------------------------------------\n\n\t// Chrome on Mac: Fn + Backspace or Ctrl + D\n\t// Safari on Mac: Ctrl + K or Ctrl + D\n\tdeleteContentForward: {\n\t\t// Unlike backward delete, this delete must be performed by character instead of by code point, which\n\t\t// provides the best UX for working with accented letters.\n\t\t// Take, for example \"b̂\" (\"\\u0062\\u0302\", or [ \"LATIN SMALL LETTER B\", \"COMBINING CIRCUMFLEX ACCENT\" ]):\n\t\t//\n\t\t//\t* \"b̂[]\" + backward delete (by code point)  -> results in \"b[]\", removed the combining mark 👍\n\t\t//\t* \"[]b̂\" + forward delete (by code point)   -> results in \"[]^\", a bare combining mark does that not make sense when alone 👎\n\t\t//\t* \"[]b̂\" + forward delete (by character)    -> results in \"[]\", removed both \"b\" and the combining mark 👍\n\t\t//\n\t\t// See: \"deleteContentBackward\" to learn more.\n\t\tunit: DELETE_CHARACTER,\n\t\tdirection: DELETE_FORWARD\n\t},\n\t// On Mac: Fn + Option + Backspace.\n\tdeleteWordForward: {\n\t\tunit: DELETE_WORD,\n\t\tdirection: DELETE_FORWARD\n\t},\n\t// Chrome on Mac: Ctrl + K (you have to disable the Link plugin first, though, because it uses the same keystroke)\n\t// This is weird that it does not work in Safari on Mac despite being listed in the official shortcuts listing\n\t// on Apple's webpage.\n\tdeleteHardLineForward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_FORWARD\n\t},\n\t// At this moment there is no known way to trigger this event type but let's keep it for the symmetry with\n\t// deleteSoftLineBackward.\n\tdeleteSoftLineForward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_FORWARD\n\t}\n};\n\n/**\n * Delete observer introduces the {@link module:engine/view/document~Document#event:delete} event.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class DeleteObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst document = view.document;\n\n\t\t// It matters how many subsequent deletions were made, e.g. when the backspace key was pressed and held\n\t\t// by the user for some time. For instance, if such scenario ocurred and the heading the selection was\n\t\t// anchored to was the only content of the editor, it will not be converted into a paragraph (the user\n\t\t// wanted to clean it up, not remove it, it's about UX). Check out the DeleteCommand implementation to learn more.\n\t\t//\n\t\t// Fun fact: Safari on Mac won't fire beforeinput for backspace in an empty heading (only content).\n\t\tlet sequence = 0;\n\n\t\tdocument.on( 'keydown', () => {\n\t\t\tsequence++;\n\t\t} );\n\n\t\tdocument.on( 'keyup', () => {\n\t\t\tsequence = 0;\n\t\t} );\n\n\t\tdocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { targetRanges, domEvent, inputType } = data;\n\t\t\tconst deleteEventSpec = DELETE_EVENT_TYPES[ inputType ];\n\n\t\t\tif ( !deleteEventSpec ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst deleteData: Partial<DeleteEventData> = {\n\t\t\t\tdirection: deleteEventSpec.direction,\n\t\t\t\tunit: deleteEventSpec.unit,\n\t\t\t\tsequence\n\t\t\t};\n\n\t\t\tif ( deleteData.unit == DELETE_SELECTION ) {\n\t\t\t\tdeleteData.selectionToRemove = view.createSelection( targetRanges[ 0 ] );\n\t\t\t}\n\n\t\t\t// The default deletion unit for deleteContentBackward is a single code point\n\t\t\t// but on Android it sometimes passes a wider target range, so we need to change\n\t\t\t// the unit of deletion to include the whole range to be removed and not a single code point.\n\t\t\tif ( env.isAndroid && inputType === 'deleteContentBackward' ) {\n\t\t\t\t// On Android, deleteContentBackward has sequence 1 by default.\n\t\t\t\tdeleteData.sequence = 1;\n\n\t\t\t\t// IME wants more than a single character to be removed.\n\t\t\t\tif (\n\t\t\t\t\ttargetRanges.length == 1 && (\n\t\t\t\t\t\ttargetRanges[ 0 ].start.parent != targetRanges[ 0 ].end.parent ||\n\t\t\t\t\t\ttargetRanges[ 0 ].start.offset + 1 != targetRanges[ 0 ].end.offset\n\t\t\t\t\t)\n\t\t\t\t) {\n\t\t\t\t\tdeleteData.unit = DELETE_SELECTION;\n\t\t\t\t\tdeleteData.selectionToRemove = view.createSelection( targetRanges );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst eventInfo = new BubblingEventInfo( document, 'delete', targetRanges[ 0 ] );\n\n\t\t\tdocument.fire( eventInfo, new DomEventData( view, domEvent, deleteData ) );\n\n\t\t\t// Stop the beforeinput event if `delete` event was stopped.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/753\n\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\n\t\t// TODO: to be removed when https://bugs.chromium.org/p/chromium/issues/detail?id=1365311 is solved.\n\t\tif ( env.isBlink ) {\n\t\t\tenableChromeWorkaround( this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe(): void {}\n}\n\n/**\n * Event fired when the user tries to delete content (e.g. presses <kbd>Delete</kbd> or <kbd>Backspace</kbd>).\n *\n * Note: This event is fired by the {@link module:typing/deleteobserver~DeleteObserver delete observer}\n * (usually registered by the {@link module:typing/delete~Delete delete feature}).\n *\n * @event module:engine/view/document~Document#event:delete\n * @param {module:engine/view/observer/domeventdata~DomEventData} data\n * @param {'forward'|'backward'} data.direction The direction in which the deletion should happen.\n * @param {'character'|'word'|'codePoint'|'selection'} data.unit The \"amount\" of content that should be deleted.\n * @param {Number} data.sequence A number describing which subsequent delete event it is without the key being released.\n * If it's 2 or more it means that the key was pressed and hold.\n * @param {module:engine/view/selection~Selection} [data.selectionToRemove] View selection which content should be removed. If not set,\n * current selection should be used.\n * @param {String} data.inputType The `beforeinput` event type that caused the deletion.\n */\nexport type ViewDocumentDeleteEvent = BubblingEvent<{\n\tname: 'delete';\n\targs: [ data: DeleteEventData ];\n}>;\n\nexport interface DeleteEventData extends DomEventData<InputEvent> {\n\tdirection: 'backward' | 'forward';\n\tunit: 'selection' | 'codePoint' | 'character' | 'word';\n\tsequence: number;\n\tselectionToRemove?: ViewSelection | ViewDocumentSelection;\n}\n\n// Enables workaround for the issue https://github.com/ckeditor/ckeditor5/issues/11904.\nfunction enableChromeWorkaround( observer: DeleteObserver ) {\n\tconst view = observer.view;\n\tconst document = view.document;\n\n\tlet pressedKeyCode: number | null = null;\n\tlet beforeInputReceived = false;\n\n\tdocument.on<ViewDocumentKeyEvent>( 'keydown', ( evt, { keyCode } ) => {\n\t\tpressedKeyCode = keyCode;\n\t\tbeforeInputReceived = false;\n\t} );\n\n\tdocument.on<ViewDocumentKeyEvent>( 'keyup', ( evt, { keyCode, domEvent } ) => {\n\t\tconst selection = document.selection;\n\t\tconst shouldFireDeleteEvent = observer.isEnabled &&\n\t\t\tkeyCode == pressedKeyCode &&\n\t\t\tisDeleteKeyCode( keyCode ) &&\n\t\t\t!selection.isCollapsed &&\n\t\t\t!beforeInputReceived;\n\n\t\tpressedKeyCode = null;\n\n\t\tif ( shouldFireDeleteEvent ) {\n\t\t\tconst targetRange = selection.getFirstRange()!;\n\t\t\tconst eventInfo = new BubblingEventInfo( document, 'delete', targetRange );\n\t\t\tconst deleteData: Partial<DeleteEventData> = {\n\t\t\t\tunit: DELETE_SELECTION,\n\t\t\t\tdirection: getDeleteDirection( keyCode ),\n\t\t\t\tselectionToRemove: selection\n\t\t\t};\n\n\t\t\tdocument.fire( eventInfo, new DomEventData( view, domEvent, deleteData ) );\n\t\t}\n\t} );\n\n\tdocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, { inputType } ) => {\n\t\tconst deleteEventSpec = DELETE_EVENT_TYPES[ inputType ];\n\t\tconst isMatchingBeforeInput = isDeleteKeyCode( pressedKeyCode ) &&\n\t\t\tdeleteEventSpec &&\n\t\t\tdeleteEventSpec.direction == getDeleteDirection( pressedKeyCode );\n\n\t\tif ( isMatchingBeforeInput ) {\n\t\t\tbeforeInputReceived = true;\n\t\t}\n\t}, { priority: 'high' } );\n\n\tdocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, { inputType, data } ) => {\n\t\tconst shouldIgnoreBeforeInput = pressedKeyCode == keyCodes.delete &&\n\t\t\tinputType == 'insertText' &&\n\t\t\tdata == '\\x7f'; // Delete character :P\n\n\t\tif ( shouldIgnoreBeforeInput ) {\n\t\t\tevt.stop();\n\t\t}\n\t}, { priority: 'high' } );\n\n\tfunction isDeleteKeyCode( keyCode: number | null ): boolean {\n\t\treturn keyCode == keyCodes.backspace || keyCode == keyCodes.delete;\n\t}\n\n\tfunction getDeleteDirection( keyCode: number | null ): 'backward' | 'forward' {\n\t\treturn keyCode == keyCodes.backspace ? DELETE_BACKWARD : DELETE_FORWARD;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/delete\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport DeleteCommand from './deletecommand';\nimport DeleteObserver, { type ViewDocumentDeleteEvent } from './deleteobserver';\n\n/**\n * The delete and backspace feature. Handles keys such as <kbd>Delete</kbd> and <kbd>Backspace</kbd>, other\n * keystrokes and user actions that result in deleting content in the editor.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Delete extends Plugin {\n\t/**\n\t * Whether pressing backspace should trigger undo action\n\t *\n\t * @private\n\t * @member {Boolean} #_undoOnBackspace\n\t */\n\tprivate _undoOnBackspace!: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Delete' {\n\t\treturn 'Delete';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst modelDocument = editor.model.document;\n\n\t\tview.addObserver( DeleteObserver );\n\n\t\tthis._undoOnBackspace = false;\n\n\t\tconst deleteForwardCommand = new DeleteCommand( editor, 'forward' );\n\n\t\t// Register `deleteForward` command and add `forwardDelete` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'deleteForward', deleteForwardCommand );\n\t\teditor.commands.add( 'forwardDelete', deleteForwardCommand );\n\n\t\teditor.commands.add( 'delete', new DeleteCommand( editor, 'backward' ) );\n\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\t// When not in composition, we handle the action, so prevent the default one.\n\t\t\t// When in composition, it's the browser who modify the DOM (renderer is disabled).\n\t\t\tif ( !viewDocument.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\tconst { direction, sequence, selectionToRemove, unit } = data;\n\t\t\tconst commandName = direction === 'forward' ? 'deleteForward' : 'delete';\n\t\t\tconst commandData: Parameters<DeleteCommand[ 'execute' ]>[ 0 ] = { sequence };\n\n\t\t\tif ( unit == 'selection' ) {\n\t\t\t\tconst modelRanges = Array.from( selectionToRemove!.getRanges() ).map( viewRange => {\n\t\t\t\t\treturn editor.editing.mapper.toModelRange( viewRange );\n\t\t\t\t} );\n\n\t\t\t\tcommandData.selection = editor.model.createSelection( modelRanges );\n\t\t\t} else {\n\t\t\t\tcommandData.unit = unit;\n\t\t\t}\n\n\t\t\teditor.execute( commandName, commandData );\n\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\n\t\tif ( this.editor.plugins.has( 'UndoEditing' ) ) {\n\t\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\t\tif ( this._undoOnBackspace && data.direction == 'backward' && data.sequence == 1 && data.unit == 'codePoint' ) {\n\t\t\t\t\tthis._undoOnBackspace = false;\n\n\t\t\t\t\teditor.execute( 'undo' );\n\n\t\t\t\t\tdata.preventDefault();\n\t\t\t\t\tevt.stop();\n\t\t\t\t}\n\t\t\t}, { context: '$capture' } );\n\n\t\t\tthis.listenTo( modelDocument, 'change', () => {\n\t\t\t\tthis._undoOnBackspace = false;\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * If the next user action after calling this method is pressing backspace, it would undo the last change.\n\t *\n\t * Requires {@link module:undo/undoediting~UndoEditing} plugin. If not loaded, does nothing.\n\t */\n\tpublic requestUndoOnBackspace(): void {\n\t\tif ( this.editor.plugins.has( 'UndoEditing' ) ) {\n\t\t\tthis._undoOnBackspace = true;\n\t\t}\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface CommandsMap {\n\t\tdeleteForward: DeleteCommand;\n\t\tforwardDelete: DeleteCommand;\n\t\tdelete: DeleteCommand;\n\t}\n\n\tinterface PluginsMap {\n\t\t[ Delete.pluginName ]: Delete;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/utils/getlasttextline\n */\n\nimport type { Model, Range } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Returns the last text line from the given range.\n *\n * \"The last text line\" is understood as text (from one or more text nodes) which is limited either by a parent block\n * or by inline elements (e.g. `<softBreak>`).\n *\n *\t\tconst rangeToCheck = model.createRange(\n *\t\t\tmodel.createPositionAt( paragraph, 0 ),\n *\t\t\tmodel.createPositionAt( paragraph, 'end' )\n *\t\t);\n *\n *\t\tconst { text, range } = getLastTextLine( rangeToCheck, model );\n *\n * For model below, the returned `text` will be \"Foo bar baz\" and `range` will be set on whole `<paragraph>` content:\n *\n *\t\t<paragraph>Foo bar baz<paragraph>\n *\n * However, in below case, `text` will be set to \"baz\" and `range` will be set only on \"baz\".\n *\n *\t\t<paragraph>Foo<softBreak></softBreak>bar<softBreak></softBreak>baz<paragraph>\n *\n * @protected\n * @param {module:engine/model/range~Range} range\n * @param {module:engine/model/model~Model} model\n * @returns {module:typing/utils/getlasttextline~LastTextLineData}\n */\nexport default function getLastTextLine( range: Range, model: Model ): LastTextLineData {\n\tlet start = range.start;\n\n\tconst text = Array.from( range.getItems() ).reduce( ( rangeText, node ) => {\n\t\t// Trim text to a last occurrence of an inline element and update range start.\n\t\tif ( !( node.is( '$text' ) || node.is( '$textProxy' ) ) ) {\n\t\t\tstart = model.createPositionAfter( node );\n\n\t\t\treturn '';\n\t\t}\n\n\t\treturn rangeText + node.data;\n\t}, '' );\n\n\treturn { text, range: model.createRange( start, range.end ) };\n}\n\n/**\n * The value returned by {@link module:typing/utils/getlasttextline~getLastTextLine}.\n *\n * @typedef {Object} module:typing/utils/getlasttextline~LastTextLineData\n *\n * @property {String} text The text from the text nodes in the last text line.\n * @property {module:engine/model/range~Range} range The range set on the text nodes in the last text line.\n */\nexport type LastTextLineData = {\n\ttext: string;\n\trange: Range;\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/textwatcher\n */\n\nimport { ObservableMixin, type ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\nimport getLastTextLine from './utils/getlasttextline';\n\nimport type {\n\tBatch,\n\tModel,\n\tRange,\n\tDocumentChangeEvent,\n\tDocumentSelectionChangeEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * The text watcher feature.\n *\n * Fires the {@link module:typing/textwatcher~TextWatcher#event:matched:data `matched:data`},\n * {@link module:typing/textwatcher~TextWatcher#event:matched:selection `matched:selection`} and\n * {@link module:typing/textwatcher~TextWatcher#event:unmatched `unmatched`} events on typing or selection changes.\n *\n * @private\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class TextWatcher extends ObservableMixin() {\n\tpublic readonly model: Model;\n\tpublic testCallback: ( text: string ) => unknown;\n\n\tprivate _hasMatch: boolean;\n\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * Creates a text watcher instance.\n\t *\n\t * @param {module:engine/model/model~Model} model\n\t * @param {Function} testCallback See {@link module:typing/textwatcher~TextWatcher#testCallback}.\n\t */\n\tconstructor( model: Model, testCallback: ( text: string ) => unknown ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The editor's model.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/model~Model}\n\t\t */\n\t\tthis.model = model;\n\n\t\t/**\n\t\t * The function used to match the text.\n\t\t *\n\t\t * The test callback can return 3 values:\n\t\t *\n\t\t * * `false` if there is no match,\n\t\t * * `true` if there is a match,\n\t\t * * an object if there is a match and we want to pass some additional information to the {@link #event:matched:data} event.\n\t\t *\n\t\t * @member {Function} #testCallback\n\t\t * @returns {Object} testResult\n\t\t */\n\t\tthis.testCallback = testCallback;\n\n\t\t/**\n\t\t * Whether there is a match currently.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._hasMatch = false;\n\n\t\t/**\n\t\t * Flag indicating whether the `TextWatcher` instance is enabled or disabled.\n\t\t * A disabled TextWatcher will not evaluate text.\n\t\t *\n\t\t * To disable TextWatcher:\n\t\t *\n\t\t *\t\tconst watcher = new TextWatcher( editor.model, testCallback );\n\t\t *\n\t\t *\t\t// After this a testCallback will not be called.\n\t\t *\t\twatcher.isEnabled = false;\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isEnabled\n\t\t */\n\t\tthis.set( 'isEnabled', true );\n\n\t\t// Toggle text watching on isEnabled state change.\n\t\tthis.on<ObservableChangeEvent>( 'change:isEnabled', () => {\n\t\t\tif ( this.isEnabled ) {\n\t\t\t\tthis._startListening();\n\t\t\t} else {\n\t\t\t\tthis.stopListening( model.document.selection );\n\t\t\t\tthis.stopListening( model.document );\n\t\t\t}\n\t\t} );\n\n\t\tthis._startListening();\n\t}\n\n\t/**\n\t * TODO\n\t */\n\tpublic get hasMatch(): boolean {\n\t\treturn this._hasMatch;\n\t}\n\n\t/**\n\t * Starts listening to the editor for typing and selection events.\n\t *\n\t * @private\n\t */\n\tprivate _startListening(): void {\n\t\tconst model = this.model;\n\t\tconst document = model.document;\n\n\t\tthis.listenTo<DocumentSelectionChangeEvent>( document.selection, 'change:range', ( evt, { directChange } ) => {\n\t\t\t// Indirect changes (i.e. when the user types or external changes are applied) are handled in the document's change event.\n\t\t\tif ( !directChange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Act only on collapsed selection.\n\t\t\tif ( !document.selection.isCollapsed ) {\n\t\t\t\tif ( this.hasMatch ) {\n\t\t\t\t\tthis.fire( 'unmatched' );\n\t\t\t\t\tthis._hasMatch = false;\n\t\t\t\t}\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._evaluateTextBeforeSelection( 'selection' );\n\t\t} );\n\n\t\tthis.listenTo<DocumentChangeEvent>( document, 'change:data', ( evt, batch ) => {\n\t\t\tif ( batch.isUndo || !batch.isLocal ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._evaluateTextBeforeSelection( 'data', { batch } );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the editor content for matched text.\n\t *\n\t * @fires matched:data\n\t * @fires matched:selection\n\t * @fires unmatched\n\t *\n\t * @private\n\t * @param {'data'|'selection'} suffix A suffix used for generating the event name.\n\t * @param {Object} data Data object for event.\n\t */\n\tprivate _evaluateTextBeforeSelection( suffix: 'data' | 'selection', data: { batch?: Batch } = {} ): void {\n\t\tconst model = this.model;\n\t\tconst document = model.document;\n\t\tconst selection = document.selection;\n\n\t\tconst rangeBeforeSelection = model.createRange( model.createPositionAt( selection.focus!.parent, 0 ), selection.focus! );\n\n\t\tconst { text, range } = getLastTextLine( rangeBeforeSelection, model );\n\n\t\tconst testResult = this.testCallback( text );\n\n\t\tif ( !testResult && this.hasMatch ) {\n\t\t\tthis.fire( 'unmatched' );\n\t\t}\n\n\t\tthis._hasMatch = !!testResult;\n\n\t\tif ( testResult ) {\n\t\t\tconst eventData = Object.assign( data, { text, range } );\n\n\t\t\t// If the test callback returns an object with additional data, assign the data as well.\n\t\t\tif ( typeof testResult == 'object' ) {\n\t\t\t\tObject.assign( eventData, testResult );\n\t\t\t}\n\n\t\t\tthis.fire( `matched:${ suffix }`, eventData );\n\t\t}\n\t}\n}\n\nexport type TextWatcherMatchedEvent<TCallbackResult extends Record<string, unknown>> = {\n\tname: 'matched' | 'matched:data' | 'matched:selection';\n\targs: [ {\n\t\ttext: string;\n\t\trange: Range;\n\t\tbatch?: Batch;\n\t} & TCallbackResult ];\n};\n\n/**\n * Fired whenever the text watcher found a match for data changes.\n *\n * @event matched:data\n * @param {Object} data Event data.\n * @param {String} data.text The full text before selection to which the regexp was applied.\n * @param {module:engine/model/range~Range} data.range The range representing the position of the `data.text`.\n * @param {Object} [data.testResult] The additional data returned from the {@link module:typing/textwatcher~TextWatcher#testCallback}.\n */\nexport type TextWatcherMatchedDataEvent<TCallbackResult extends Record<string, unknown>> = {\n\tname: 'matched:data';\n\targs: [ {\n\t\ttext: string;\n\t\trange: Range;\n\t\tbatch: Batch;\n\t} & TCallbackResult ];\n};\n\n/**\n * Fired whenever the text watcher found a match for selection changes.\n *\n * @event matched:selection\n * @param {Object} data Event data.\n * @param {String} data.text The full text before selection.\n * @param {module:engine/model/range~Range} data.range The range representing the position of the `data.text`.\n * @param {Object} [data.testResult] The additional data returned from the {@link module:typing/textwatcher~TextWatcher#testCallback}.\n */\nexport type TextWatcherMatchedSelectionEvent<TCallbackResult extends Record<string, unknown>> = {\n\tname: 'matched:selection';\n\targs: [ {\n\t\ttext: string;\n\t\trange: Range;\n\t} & TCallbackResult ];\n};\n\n/**\n * Fired whenever the text does not match anymore. Fired only when the text watcher found a match.\n *\n * @event unmatched\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/twostepcaretmovement\n */\n\nimport { Plugin, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport { keyCodes } from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDocumentSelection,\n\tDomEventData,\n\tModel,\n\tPosition,\n\tViewDocumentArrowKeyEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * This plugin enables the two-step caret (phantom) movement behavior for\n * {@link module:typing/twostepcaretmovement~TwoStepCaretMovement#registerAttribute registered attributes}\n * on arrow right (<kbd>→</kbd>) and left (<kbd>←</kbd>) key press.\n *\n * Thanks to this (phantom) caret movement the user is able to type before/after as well as at the\n * beginning/end of an attribute.\n *\n * **Note:** This plugin support right–to–left (Arabic, Hebrew, etc.) content by mirroring its behavior\n * but for the sake of simplicity examples showcase only left–to–right use–cases.\n *\n * # Forward movement\n *\n * ## \"Entering\" an attribute:\n *\n * When this plugin is enabled and registered for the `a` attribute and the selection is right before it\n * (at the attribute boundary), pressing the right arrow key will not move the selection but update its\n * attributes accordingly:\n *\n * * When enabled:\n *\n *   \t\tfoo{}<$text a=\"true\">bar</$text>\n *\n *    <kbd>→</kbd>\n *\n *   \t\tfoo<$text a=\"true\">{}bar</$text>\n *\n * * When disabled:\n *\n *   \t\tfoo{}<$text a=\"true\">bar</$text>\n *\n *   <kbd>→</kbd>\n *\n *   \t\tfoo<$text a=\"true\">b{}ar</$text>\n *\n *\n * ## \"Leaving\" an attribute:\n *\n * * When enabled:\n *\n *   \t\t<$text a=\"true\">bar{}</$text>baz\n *\n *    <kbd>→</kbd>\n *\n *   \t\t<$text a=\"true\">bar</$text>{}baz\n *\n * * When disabled:\n *\n *   \t\t<$text a=\"true\">bar{}</$text>baz\n *\n *   <kbd>→</kbd>\n *\n *   \t\t<$text a=\"true\">bar</$text>b{}az\n *\n * # Backward movement\n *\n * * When enabled:\n *\n *   \t\t<$text a=\"true\">bar</$text>{}baz\n *\n *    <kbd>←</kbd>\n *\n *   \t\t<$text a=\"true\">bar{}</$text>baz\n *\n * * When disabled:\n *\n *   \t\t<$text a=\"true\">bar</$text>{}baz\n *\n *   <kbd>←</kbd>\n *\n *   \t\t<$text a=\"true\">ba{}r</$text>b{}az\n *\n * # Multiple attributes\n *\n * * When enabled and many attributes starts or ends at the same position:\n *\n *   \t\t<$text a=\"true\" b=\"true\">bar</$text>{}baz\n *\n *    <kbd>←</kbd>\n *\n *   \t\t<$text a=\"true\" b=\"true\">bar{}</$text>baz\n *\n * * When enabled and one procedes another:\n *\n *   \t\t<$text a=\"true\">bar</$text><$text b=\"true\">{}bar</$text>\n *\n *    <kbd>←</kbd>\n *\n *   \t\t<$text a=\"true\">bar{}</$text><$text b=\"true\">bar</$text>\n *\n */\nexport default class TwoStepCaretMovement extends Plugin {\n\tprivate attributes: Set<string>;\n\tprivate _overrideUid: string | null;\n\tprivate _isNextGravityRestorationSkipped!: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TwoStepCaretMovement' {\n\t\treturn 'TwoStepCaretMovement';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A set of attributes to handle.\n\t\t *\n\t\t * @protected\n\t\t * @property {module:typing/twostepcaretmovement~TwoStepCaretMovement}\n\t\t */\n\t\tthis.attributes = new Set();\n\n\t\t/**\n\t\t * The current UID of the overridden gravity, as returned by\n\t\t * {@link module:engine/model/writer~Writer#overrideSelectionGravity}.\n\t\t *\n\t\t * @private\n\t\t * @member {String}\n\t\t */\n\t\tthis._overrideUid = null;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst locale = editor.locale;\n\n\t\tconst modelSelection = model.document.selection;\n\n\t\t// Listen to keyboard events and handle the caret movement according to the 2-step caret logic.\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>( view.document, 'arrowKey', ( evt, data ) => {\n\t\t\t// This implementation works only for collapsed selection.\n\t\t\tif ( !modelSelection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// When user tries to expand the selection or jump over the whole word or to the beginning/end then\n\t\t\t// two-steps movement is not necessary.\n\t\t\tif ( data.shiftKey || data.altKey || data.ctrlKey ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst arrowRightPressed = data.keyCode == keyCodes.arrowright;\n\t\t\tconst arrowLeftPressed = data.keyCode == keyCodes.arrowleft;\n\n\t\t\t// When neither left or right arrow has been pressed then do noting.\n\t\t\tif ( !arrowRightPressed && !arrowLeftPressed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst contentDirection = locale.contentLanguageDirection;\n\t\t\tlet isMovementHandled = false;\n\n\t\t\tif ( ( contentDirection === 'ltr' && arrowRightPressed ) || ( contentDirection === 'rtl' && arrowLeftPressed ) ) {\n\t\t\t\tisMovementHandled = this._handleForwardMovement( data );\n\t\t\t} else {\n\t\t\t\tisMovementHandled = this._handleBackwardMovement( data );\n\t\t\t}\n\n\t\t\t// Stop the keydown event if the two-step caret movement handled it. Avoid collisions\n\t\t\t// with other features which may also take over the caret movement (e.g. Widget).\n\t\t\tif ( isMovementHandled === true ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: '$text', priority: 'highest' } );\n\n\t\t/**\n\t\t * A flag indicating that the automatic gravity restoration should not happen upon the next\n\t\t * gravity restoration.\n\t\t * {@link module:engine/model/selection~Selection#event:change:range} event.\n\t\t *\n\t\t * @private\n\t\t * @member {String}\n\t\t */\n\t\tthis._isNextGravityRestorationSkipped = false;\n\n\t\t// The automatic gravity restoration logic.\n\t\tthis.listenTo( modelSelection, 'change:range', ( evt, data ) => {\n\t\t\t// Skipping the automatic restoration is needed if the selection should change\n\t\t\t// but the gravity must remain overridden afterwards. See the #handleBackwardMovement\n\t\t\t// to learn more.\n\t\t\tif ( this._isNextGravityRestorationSkipped ) {\n\t\t\t\tthis._isNextGravityRestorationSkipped = false;\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Skip automatic restore when the gravity is not overridden — simply, there's nothing to restore\n\t\t\t// at this moment.\n\t\t\tif ( !this._isGravityOverridden ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Skip automatic restore when the change is indirect AND the selection is at the attribute boundary.\n\t\t\t// It means that e.g. if the change was external (collaboration) and the user had their\n\t\t\t// selection around the link, its gravity should remain intact in this change:range event.\n\t\t\tif ( !data.directChange && isBetweenDifferentAttributes( modelSelection.getFirstPosition()!, this.attributes ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._restoreGravity();\n\t\t} );\n\t}\n\n\t/**\n\t * Registers a given attribute for the two-step caret movement.\n\t *\n\t * @param {String} attribute Name of the attribute to handle.\n\t */\n\tpublic registerAttribute( attribute: string ): void {\n\t\tthis.attributes.add( attribute );\n\t}\n\n\t/**\n\t * Updates the document selection and the view according to the two–step caret movement state\n\t * when moving **forwards**. Executed upon `keypress` in the {@link module:engine/view/view~View}.\n\t *\n\t * @private\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} data Data of the key press.\n\t * @returns {Boolean} `true` when the handler prevented caret movement\n\t */\n\tprivate _handleForwardMovement( data: DomEventData ): boolean {\n\t\tconst attributes = this.attributes;\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst position = selection.getFirstPosition()!;\n\n\t\t// DON'T ENGAGE 2-SCM if gravity is already overridden. It means that we just entered\n\t\t//\n\t\t// \t\t<paragraph>foo<$text attribute>{}bar</$text>baz</paragraph>\n\t\t//\n\t\t// or left the attribute\n\t\t//\n\t\t// \t\t<paragraph>foo<$text attribute>bar</$text>{}baz</paragraph>\n\t\t//\n\t\t// and the gravity will be restored automatically.\n\t\tif ( this._isGravityOverridden ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// DON'T ENGAGE 2-SCM when the selection is at the beginning of the block AND already has the\n\t\t// attribute:\n\t\t// * when the selection was initially set there using the mouse,\n\t\t// * when the editor has just started\n\t\t//\n\t\t//\t\t<paragraph><$text attribute>{}bar</$text>baz</paragraph>\n\t\t//\n\t\tif ( position.isAtStart && hasAnyAttribute( selection, attributes ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// ENGAGE 2-SCM When at least one of the observed attributes changes its value (incl. starts, ends).\n\t\t//\n\t\t//\t\t<paragraph>foo<$text attribute>bar{}</$text>baz</paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>bar{}</$text><$text otherAttribute>baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute=1>bar{}</$text><$text attribute=2>baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo{}<$text attribute>bar</$text>baz</paragraph>\n\t\t//\n\t\tif ( isBetweenDifferentAttributes( position, attributes ) ) {\n\t\t\tpreventCaretMovement( data );\n\t\t\tthis._overrideGravity();\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Updates the document selection and the view according to the two–step caret movement state\n\t * when moving **backwards**. Executed upon `keypress` in the {@link module:engine/view/view~View}.\n\t *\n\t * @private\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} data Data of the key press.\n\t * @returns {Boolean} `true` when the handler prevented caret movement\n\t */\n\tprivate _handleBackwardMovement( data: DomEventData ): boolean {\n\t\tconst attributes = this.attributes;\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst position = selection.getFirstPosition()!;\n\n\t\t// When the gravity is already overridden (by this plugin), it means we are on the two-step position.\n\t\t// Prevent the movement, restore the gravity and update selection attributes.\n\t\t//\n\t\t//\t\t<paragraph>foo<$text attribute=1>bar</$text><$text attribute=2>{}baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>bar</$text><$text otherAttribute>{}baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>{}bar</$text>baz</paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>bar</$text>{}baz</paragraph>\n\t\t//\n\t\tif ( this._isGravityOverridden ) {\n\t\t\tpreventCaretMovement( data );\n\t\t\tthis._restoreGravity();\n\t\t\tsetSelectionAttributesFromTheNodeBefore( model, attributes, position );\n\n\t\t\treturn true;\n\t\t} else {\n\t\t\t// REMOVE SELECTION ATTRIBUTE when restoring gravity towards a non-existent content at the\n\t\t\t// beginning of the block.\n\t\t\t//\n\t\t\t// \t\t<paragraph>{}<$text attribute>bar</$text></paragraph>\n\t\t\t//\n\t\t\tif ( position.isAtStart ) {\n\t\t\t\tif ( hasAnyAttribute( selection, attributes ) ) {\n\t\t\t\t\tpreventCaretMovement( data );\n\t\t\t\t\tsetSelectionAttributesFromTheNodeBefore( model, attributes, position );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\t\t\t}\n\n\t\t\t// When we are moving from natural gravity, to the position of the 2SCM, we need to override the gravity,\n\t\t\t// and make sure it won't be restored. Unless it's at the end of the block and an observed attribute.\n\t\t\t// We need to check if the caret is a one position before the attribute boundary:\n\t\t\t//\n\t\t\t//\t\t<paragraph>foo<$text attribute=1>bar</$text><$text attribute=2>b{}az</$text></paragraph>\n\t\t\t//\t\t<paragraph>foo<$text attribute>bar</$text><$text otherAttribute>b{}az</$text></paragraph>\n\t\t\t//\t\t<paragraph>foo<$text attribute>b{}ar</$text>baz</paragraph>\n\t\t\t//\t\t<paragraph>foo<$text attribute>bar</$text>b{}az</paragraph>\n\t\t\t//\n\t\t\tif ( isStepAfterAnyAttributeBoundary( position, attributes ) ) {\n\t\t\t\t// ENGAGE 2-SCM if the selection has no attribute. This may happen when the user\n\t\t\t\t// left the attribute using a FORWARD 2-SCM.\n\t\t\t\t//\n\t\t\t\t// \t\t<paragraph><$text attribute>bar</$text>{}</paragraph>\n\t\t\t\t//\n\t\t\t\tif (\n\t\t\t\t\tposition.isAtEnd &&\n\t\t\t\t\t!hasAnyAttribute( selection, attributes ) &&\n\t\t\t\t\tisBetweenDifferentAttributes( position, attributes )\n\t\t\t\t) {\n\t\t\t\t\tpreventCaretMovement( data );\n\t\t\t\t\tsetSelectionAttributesFromTheNodeBefore( model, attributes, position );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t\t// Skip the automatic gravity restore upon the next selection#change:range event.\n\t\t\t\t// If not skipped, it would automatically restore the gravity, which should remain\n\t\t\t\t// overridden.\n\t\t\t\tthis._isNextGravityRestorationSkipped = true;\n\t\t\t\tthis._overrideGravity();\n\n\t\t\t\t// Don't return \"true\" here because we didn't call _preventCaretMovement.\n\t\t\t\t// Returning here will destabilize the filler logic, which also listens to\n\t\t\t\t// keydown (and the event would be stopped).\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * `true` when the gravity is overridden for the plugin.\n\t *\n\t * @readonly\n\t * @private\n\t * @type {Boolean}\n\t */\n\tprivate get _isGravityOverridden(): boolean {\n\t\treturn !!this._overrideUid;\n\t}\n\n\t/**\n\t * Overrides the gravity using the {@link module:engine/model/writer~Writer model writer}\n\t * and stores the information about this fact in the {@link #_overrideUid}.\n\t *\n\t * A shorthand for {@link module:engine/model/writer~Writer#overrideSelectionGravity}.\n\t *\n\t * @private\n\t */\n\tprivate _overrideGravity(): void {\n\t\tthis._overrideUid = this.editor.model.change( writer => {\n\t\t\treturn writer.overrideSelectionGravity();\n\t\t} );\n\t}\n\n\t/**\n\t * Restores the gravity using the {@link module:engine/model/writer~Writer model writer}.\n\t *\n\t * A shorthand for {@link module:engine/model/writer~Writer#restoreSelectionGravity}.\n\t *\n\t * @private\n\t */\n\tprivate _restoreGravity(): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\twriter.restoreSelectionGravity( this._overrideUid! );\n\t\t\tthis._overrideUid = null;\n\t\t} );\n\t}\n}\n\n// Checks whether the selection has any of given attributes.\n//\n// @param {module:engine/model/documentselection~DocumentSelection} selection\n// @param {Iterable.<String>} attributes\nfunction hasAnyAttribute( selection: DocumentSelection, attributes: Set<string> ) {\n\tfor ( const observedAttribute of attributes ) {\n\t\tif ( selection.hasAttribute( observedAttribute ) ) {\n\t\t\treturn true;\n\t\t}\n\t}\n\n\treturn false;\n}\n\n// Applies the given attributes to the current selection using using the\n// values from the node before the current position. Uses\n// the {@link module:engine/model/writer~Writer model writer}.\n//\n// @param {module:engine/model/model~Model}\n// @param {Iterable.<String>} attributess\n// @param {module:engine/model/position~Position} position\nfunction setSelectionAttributesFromTheNodeBefore( model: Model, attributes: Set<string>, position: Position ) {\n\tconst nodeBefore = position.nodeBefore;\n\tmodel.change( writer => {\n\t\tif ( nodeBefore ) {\n\t\t\twriter.setSelectionAttribute( nodeBefore.getAttributes() );\n\t\t} else {\n\t\t\twriter.removeSelectionAttribute( attributes );\n\t\t}\n\t} );\n}\n\n// Prevents the caret movement in the view by calling `preventDefault` on the event data.\n//\n// @alias data.preventDefault\nfunction preventCaretMovement( data: DomEventData ) {\n\tdata.preventDefault();\n}\n\n// Checks whether the step before `isBetweenDifferentAttributes()`.\n//\n// @param {module:engine/model/position~Position} position\n// @param {String} attribute\nfunction isStepAfterAnyAttributeBoundary( position: Position, attributes: Set<string> ) {\n\tconst positionBefore = position.getShiftedBy( -1 );\n\treturn isBetweenDifferentAttributes( positionBefore, attributes );\n}\n\n// Checks whether the given position is between different values of given attributes.\n//\n// @param {module:engine/model/position~Position} position\n// @param {Iterable.<String>} attributes\nfunction isBetweenDifferentAttributes( position: Position, attributes: Set<string> ) {\n\tconst { nodeBefore, nodeAfter } = position;\n\tfor ( const observedAttribute of attributes ) {\n\t\tconst attrBefore = nodeBefore ? nodeBefore.getAttribute( observedAttribute ) : undefined;\n\t\tconst attrAfter = nodeAfter ? nodeAfter.getAttribute( observedAttribute ) : undefined;\n\n\t\tif ( attrAfter !== attrBefore ) {\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ TwoStepCaretMovement.pluginName ]: TwoStepCaretMovement;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/texttransformation\n */\n\nimport {\n\tPlugin,\n\ttype Editor,\n\ttype PluginDependencies\n} from '@ckeditor/ckeditor5-core';\n\nimport TextWatcher, { type TextWatcherMatchedDataEvent } from './textwatcher';\nimport { escapeRegExp } from 'lodash-es';\n\nimport type { Position } from '@ckeditor/ckeditor5-engine';\n\n// All named transformations.\nconst TRANSFORMATIONS: Record<string, TextTransformationDescription> = {\n\t// Common symbols:\n\tcopyright: { from: '(c)', to: '©' },\n\tregisteredTrademark: { from: '(r)', to: '®' },\n\ttrademark: { from: '(tm)', to: '™' },\n\n\t// Mathematical:\n\toneHalf: { from: /(^|[^/a-z0-9])(1\\/2)([^/a-z0-9])$/i, to: [ null, '½', null ] },\n\toneThird: { from: /(^|[^/a-z0-9])(1\\/3)([^/a-z0-9])$/i, to: [ null, '⅓', null ] },\n\ttwoThirds: { from: /(^|[^/a-z0-9])(2\\/3)([^/a-z0-9])$/i, to: [ null, '⅔', null ] },\n\toneForth: { from: /(^|[^/a-z0-9])(1\\/4)([^/a-z0-9])$/i, to: [ null, '¼', null ] },\n\tthreeQuarters: { from: /(^|[^/a-z0-9])(3\\/4)([^/a-z0-9])$/i, to: [ null, '¾', null ] },\n\tlessThanOrEqual: { from: '<=', to: '≤' },\n\tgreaterThanOrEqual: { from: '>=', to: '≥' },\n\tnotEqual: { from: '!=', to: '≠' },\n\tarrowLeft: { from: '<-', to: '←' },\n\tarrowRight: { from: '->', to: '→' },\n\n\t// Typography:\n\thorizontalEllipsis: { from: '...', to: '…' },\n\tenDash: { from: /(^| )(--)( )$/, to: [ null, '–', null ] },\n\temDash: { from: /(^| )(---)( )$/, to: [ null, '—', null ] },\n\t// Quotations:\n\t// English, US\n\tquotesPrimary: { from: buildQuotesRegExp( '\"' ), to: [ null, '“', null, '”' ] },\n\tquotesSecondary: { from: buildQuotesRegExp( '\\'' ), to: [ null, '‘', null, '’' ] },\n\n\t// English, UK\n\tquotesPrimaryEnGb: { from: buildQuotesRegExp( '\\'' ), to: [ null, '‘', null, '’' ] },\n\tquotesSecondaryEnGb: { from: buildQuotesRegExp( '\"' ), to: [ null, '“', null, '”' ] },\n\n\t// Polish\n\tquotesPrimaryPl: { from: buildQuotesRegExp( '\"' ), to: [ null, '„', null, '”' ] },\n\tquotesSecondaryPl: { from: buildQuotesRegExp( '\\'' ), to: [ null, '‚', null, '’' ] }\n};\n\n// Transformation groups.\nconst TRANSFORMATION_GROUPS: Record<string, Array<string>> = {\n\tsymbols: [ 'copyright', 'registeredTrademark', 'trademark' ],\n\tmathematical: [\n\t\t'oneHalf', 'oneThird', 'twoThirds', 'oneForth', 'threeQuarters',\n\t\t'lessThanOrEqual', 'greaterThanOrEqual', 'notEqual',\n\t\t'arrowLeft', 'arrowRight'\n\t],\n\ttypography: [ 'horizontalEllipsis', 'enDash', 'emDash' ],\n\tquotes: [ 'quotesPrimary', 'quotesSecondary' ]\n};\n\n// A set of default transformations provided by the feature.\nconst DEFAULT_TRANSFORMATIONS = [\n\t'symbols',\n\t'mathematical',\n\t'typography',\n\t'quotes'\n];\n\n/**\n * The text transformation plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TextTransformation extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ 'Delete', 'Input' ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TextTransformation' {\n\t\treturn 'TextTransformation';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'typing', {\n\t\t\ttransformations: {\n\t\t\t\tinclude: DEFAULT_TRANSFORMATIONS\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst model = this.editor.model;\n\t\tconst modelSelection = model.document.selection;\n\n\t\tmodelSelection.on( 'change:range', () => {\n\t\t\t// Disable plugin when selection is inside a code block.\n\t\t\tthis.isEnabled = !modelSelection.anchor!.parent.is( 'element', 'codeBlock' );\n\t\t} );\n\n\t\tthis._enableTransformationWatchers();\n\t}\n\n\t/**\n\t * Create new TextWatcher listening to the editor for typing and selection events.\n\t *\n\t * @private\n\t */\n\tprivate _enableTransformationWatchers(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst deletePlugin = editor.plugins.get( 'Delete' );\n\t\tconst normalizedTransformations = normalizeTransformations( editor.config.get( 'typing.transformations' )! );\n\n\t\tconst testCallback = ( text: string ) => {\n\t\t\tfor ( const normalizedTransformation of normalizedTransformations ) {\n\t\t\t\tconst from = normalizedTransformation.from;\n\t\t\t\tconst match = from.test( text );\n\n\t\t\t\tif ( match ) {\n\t\t\t\t\treturn { normalizedTransformation };\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\tconst watcher = new TextWatcher( editor.model, testCallback );\n\n\t\twatcher.on<TextWatcherMatchedDataEvent<{\n\t\t\tnormalizedTransformation: NormalizedTransformationConfig;\n\t\t}>>( 'matched:data', ( evt, data ) => {\n\t\t\tif ( !data.batch.isTyping ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { from, to } = data.normalizedTransformation;\n\n\t\t\tconst matches = from.exec( data.text )!;\n\t\t\tconst replaces = to( matches.slice( 1 ) );\n\n\t\t\tconst matchedRange = data.range;\n\n\t\t\tlet changeIndex = matches.index;\n\n\t\t\tmodel.enqueueChange( writer => {\n\t\t\t\tfor ( let i = 1; i < matches.length; i++ ) {\n\t\t\t\t\tconst match = matches[ i ];\n\t\t\t\t\tconst replaceWith = replaces[ i - 1 ];\n\n\t\t\t\t\tif ( replaceWith == null ) {\n\t\t\t\t\t\tchangeIndex += match.length;\n\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst replacePosition = matchedRange.start.getShiftedBy( changeIndex );\n\t\t\t\t\tconst replaceRange = model.createRange( replacePosition, replacePosition.getShiftedBy( match.length ) );\n\t\t\t\t\tconst attributes = getTextAttributesAfterPosition( replacePosition );\n\n\t\t\t\t\tmodel.insertContent( writer.createText( replaceWith, attributes ), replaceRange );\n\n\t\t\t\t\tchangeIndex += replaceWith.length;\n\t\t\t\t}\n\n\t\t\t\tmodel.enqueueChange( () => {\n\t\t\t\t\tdeletePlugin.requestUndoOnBackspace();\n\t\t\t\t} );\n\t\t\t} );\n\t\t} );\n\n\t\twatcher.bind( 'isEnabled' ).to( this );\n\t}\n}\n\n// Normalizes the configuration `from` parameter value.\n// The normalized value for the `from` parameter is a RegExp instance. If the passed `from` is already a RegExp instance,\n// it is returned unchanged.\n//\n// @param {String|RegExp} from\n// @returns {RegExp}\nfunction normalizeFrom( from: string | RegExp ) {\n\tif ( typeof from == 'string' ) {\n\t\treturn new RegExp( `(${ escapeRegExp( from ) })$` );\n\t}\n\n\t// `from` is already a regular expression.\n\treturn from;\n}\n\n// Normalizes the configuration `to` parameter value.\n// The normalized value for the `to` parameter is a function that takes an array and returns an array. See more in the\n// configuration description. If the passed `to` is already a function, it is returned unchanged.\n//\n// @param {String|Array.<null|String>|Function} to\n// @returns {Function}\nfunction normalizeTo( to: TextTransformationDescription[ 'to' ] ) {\n\tif ( typeof to == 'string' ) {\n\t\treturn () => [ to ];\n\t} else if ( to instanceof Array ) {\n\t\treturn () => to;\n\t}\n\n\t// `to` is already a function.\n\treturn to;\n}\n\n// For given `position` returns attributes for the text that is after that position.\n// The text can be in the same text node as the position (`foo[]bar`) or in the next text node (`foo[]<$text bold=\"true\">bar</$text>`).\n//\n// @param {module:engine/model/position~Position} position\n// @returns {Iterable.<*>}\nfunction getTextAttributesAfterPosition( position: Position ) {\n\tconst textNode = position.textNode ? position.textNode : position.nodeAfter;\n\n\treturn textNode!.getAttributes();\n}\n\n// Returns a RegExp pattern string that detects a sentence inside a quote.\n//\n// @param {String} quoteCharacter The character to create a pattern for.\n// @returns {String}\nfunction buildQuotesRegExp( quoteCharacter: string ) {\n\treturn new RegExp( `(^|\\\\s)(${ quoteCharacter })([^${ quoteCharacter }]*)(${ quoteCharacter })$` );\n}\n\n// Reads text transformation config and returns normalized array of transformations objects.\n//\n// @param {module:typing/texttransformation~TextTransformationDescription} config\n// @returns {Array.<{from:String,to:Function}>}\nfunction normalizeTransformations( config: TextTransformationConfig ): Array<NormalizedTransformationConfig> {\n\tconst extra = config.extra || [];\n\tconst remove = config.remove || [];\n\tconst isNotRemoved = ( transformation: TextTransformationDescription | string ) => !remove.includes( transformation );\n\n\tconst configured = config.include.concat( extra ).filter( isNotRemoved );\n\n\treturn expandGroupsAndRemoveDuplicates( configured )\n\t\t.filter( isNotRemoved ) // Filter out 'remove' transformations as they might be set in group.\n\t\t.map( transformation => (\n\t\t\ttypeof transformation == 'string' && TRANSFORMATIONS[ transformation ] ? TRANSFORMATIONS[ transformation ] : transformation )\n\t\t)\n\t\t// Filter out transformations set as string that has not been found.\n\t\t.filter( ( transformation ): transformation is TextTransformationDescription => typeof transformation === 'object' )\n\t\t.map( transformation => ( {\n\t\t\tfrom: normalizeFrom( transformation.from ),\n\t\t\tto: normalizeTo( transformation.to )\n\t\t} ) );\n}\n\n// Reads definitions and expands named groups if needed to transformation names.\n// This method also removes duplicated named transformations if any.\n//\n// @param {Array.<String|Object>} definitions\n// @returns {Array.<String|Object>}\nfunction expandGroupsAndRemoveDuplicates(\n\tdefinitions: Array<TextTransformationDescription | string>\n): Array<TextTransformationDescription | string> {\n\t// Set is using to make sure that transformation names are not duplicated.\n\tconst definedTransformations = new Set<TextTransformationDescription | string>();\n\n\tfor ( const transformationOrGroup of definitions ) {\n\t\tif ( typeof transformationOrGroup == 'string' && TRANSFORMATION_GROUPS[ transformationOrGroup ] ) {\n\t\t\tfor ( const transformation of TRANSFORMATION_GROUPS[ transformationOrGroup ] ) {\n\t\t\t\tdefinedTransformations.add( transformation );\n\t\t\t}\n\t\t} else {\n\t\t\tdefinedTransformations.add( transformationOrGroup );\n\t\t}\n\t}\n\n\treturn Array.from( definedTransformations );\n}\n\n/**\n * The text transformation definition object. It describes what should be replaced with what.\n *\n * The input value (`from`) can be passed either as a string or as a regular expression.\n *\n * * If a string is passed, it will be simply checked if the end of the input matches it.\n * * If a regular expression is passed, its entire length must be covered with capturing groups (e.g. `/(foo)(bar)$/`).\n * Also, since it is compared against the end of the input, it has to end with  `$` to be correctly matched.\n * See examples below.\n *\n * The output value (`to`) can be passed as a string, as an array or as a function.\n *\n * * If a string is passed, it will be used as a replacement value as-is. Note that a string output value can be used only if\n * the input value is a string, too.\n * * If an array is passed, it has to have the same number of elements as there are capturing groups in the input value regular expression.\n * Each capture group will be replaced with a corresponding string from the passed array. If a given capturing group should not be replaced,\n * use `null` instead of passing a string.\n * * If a function is used, it should return an array as described above. The function is passed one parameter &mdash; an array with matches\n * by the regular expression. See the examples below.\n *\n * A simple string-to-string replacement:\n *\n *\t\t{ from: '(c)', to: '©' }\n *\n * Change quote styles using a regular expression. Note how all the parts are in separate capturing groups and the space at the beginning\n * and the text inside quotes are not replaced (`null` passed as the first and the third value in the `to` parameter):\n *\n *\t\t{\n *\t\t\tfrom: /(^|\\s)(\")([^\"]*)(\")$/,\n *\t\t\tto: [ null, '“', null, '”' ]\n *\t\t}\n *\n * Automatic uppercase after a dot using a callback:\n *\n *\t\t{\n *\t\t\tfrom: /(\\. )([a-z])$/,\n *\t\t\tto: matches => [ null, matches[ 1 ].toUpperCase() ]\n *\t\t}\n *\n * @typedef {Object} module:typing/texttransformation~TextTransformationDescription\n * @property {String|RegExp} from The string or regular expression to transform.\n * @property {String} to The text to transform compatible with `String.replace()`.\n */\nexport type TextTransformationDescription = {\n\tfrom: string | RegExp;\n\tto: string | Array<string | null> | ( ( matches: Array<string> ) => Array<string | null> );\n};\n\n/**\n * The configuration of the {@link module:typing/texttransformation~TextTransformation} feature.\n *\n * Read more in {@link module:typing/texttransformation~TextTransformationConfig}.\n *\n * @member {module:typing/texttransformation~TextTransformationConfig} module:typing/typing~TypingConfig#transformations\n */\ndeclare module './typingconfig' {\n\tinterface TypingConfig {\n\t\ttransformations: TextTransformationConfig;\n\t}\n}\n\n/**\n * The configuration of the text transformation feature.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\ttyping: {\n *\t\t\t\t\ttransformations: ... // Text transformation feature options.\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * By default, the feature comes pre-configured\n * (via {@link module:typing/texttransformation~TextTransformationConfig#include `config.typing.transformations.include`}) with the\n * following groups of transformations:\n *\n * * Typography (group name: `typography`)\n *   - `ellipsis`: transforms `...` to `…`\n *   - `enDash`: transforms ` -- ` to ` – `\n *   - `emDash`: transforms ` --- ` to ` — `\n * * Quotations (group name: `quotes`)\n *   - `quotesPrimary`: transforms `\"Foo bar\"` to `“Foo bar”`\n *   - `quotesSecondary`: transforms `'Foo bar'` to `‘Foo bar’`\n * * Symbols (group name: `symbols`)\n *   - `trademark`: transforms `(tm)` to `™`\n *   - `registeredTrademark`: transforms `(r)` to `®`\n *   - `copyright`: transforms `(c)` to `©`\n * * Mathematical (group name: `mathematical`)\n *   - `oneHalf`: transforms `1/2` to: `½`\n *   - `oneThird`: transforms `1/3` to: `⅓`\n *   - `twoThirds`: transforms `2/3` to: `⅔`\n *   - `oneForth`: transforms `1/4` to: `¼`\n *   - `threeQuarters`: transforms `3/4` to: `¾`\n *   - `lessThanOrEqual`: transforms `<=` to: `≤`\n *   - `greaterThanOrEqual`: transforms `>=` to: `≥`\n *   - `notEqual`: transforms `!=` to: `≠`\n *   - `arrowLeft`: transforms `<-` to: `←`\n *   - `arrowRight`: transforms `->` to: `→`\n * * Misc:\n *   - `quotesPrimaryEnGb`: transforms `'Foo bar'` to `‘Foo bar’`\n *   - `quotesSecondaryEnGb`: transforms `\"Foo bar\"` to `“Foo bar”`\n *   - `quotesPrimaryPl`: transforms `\"Foo bar\"` to `„Foo bar”`\n *   - `quotesSecondaryPl`:  transforms `'Foo bar'` to `‚Foo bar’`\n *\n * In order to load additional transformations, use the\n * {@link module:typing/texttransformation~TextTransformationConfig#extra `transformations.extra` option}.\n *\n * In order to narrow down the list of transformations, use the\n * {@link module:typing/texttransformation~TextTransformationConfig#remove `transformations.remove` option}.\n *\n * In order to completely override the supported transformations, use the\n * {@link module:typing/texttransformation~TextTransformationConfig#include `transformations.include` option}.\n *\n * Examples:\n *\n *\t\tconst transformationsConfig = {\n *\t\t\tinclude: [\n *\t\t\t\t// Use only the 'quotes' and 'typography' groups.\n *\t\t\t\t'quotes',\n *\t\t\t\t'typography',\n *\n *\t\t\t\t// Plus, some custom transformation.\n *\t\t\t\t{ from: 'CKE', to: 'CKEditor' }\n *\t\t\t]\n *\t\t};\n *\n *\t\tconst transformationsConfig = {\n *\t\t\t// Remove the 'ellipsis' transformation loaded by the 'typography' group.\n *\t\t\tremove: [ 'ellipsis' ]\n *\t\t}\n *\n * @interface TextTransformationConfig\n */\nexport type TextTransformationConfig = {\n\tinclude: Array<TextTransformationDescription | string>;\n\textra?: Array<TextTransformationDescription | string>;\n\tremove?: Array<TextTransformationDescription | string>;\n};\n\n/* eslint-disable max-len */\n/**\n * The standard list of text transformations supported by the editor. By default it comes pre-configured with a couple dozen of them\n * (see {@link module:typing/texttransformation~TextTransformationConfig} for the full list). You can override this list completely\n * by setting this option or use the other two options\n * ({@link module:typing/texttransformation~TextTransformationConfig#extra `transformations.extra`},\n * {@link module:typing/texttransformation~TextTransformationConfig#remove `transformations.remove`}) to fine-tune the default list.\n *\n * @member {Array.<module:typing/texttransformation~TextTransformationDescription>} module:typing/texttransformation~TextTransformationConfig#include\n */\n\n/**\n * Additional text transformations that are added to the transformations defined in\n * {@link module:typing/texttransformation~TextTransformationConfig#include `transformations.include`}.\n *\n *\t\tconst transformationsConfig = {\n *\t\t\textra: [\n *\t\t\t\t{ from: 'CKE', to: 'CKEditor' }\n *\t\t\t]\n *\t\t};\n *\n * @member {Array.<module:typing/texttransformation~TextTransformationDescription>} module:typing/texttransformation~TextTransformationConfig#extra\n */\n\n/**\n * The text transformation names that are removed from transformations defined in\n * {@link module:typing/texttransformation~TextTransformationConfig#include `transformations.include`} or\n * {@link module:typing/texttransformation~TextTransformationConfig#extra `transformations.extra`}.\n *\n *\t\tconst transformationsConfig = {\n *\t\t\tremove: [\n *\t\t\t\t'ellipsis',    // Remove only 'ellipsis' from the 'typography' group.\n *\t\t\t\t'mathematical' // Remove all transformations from the 'mathematical' group.\n *\t\t\t]\n *\t\t}\n *\n * @member {Array.<module:typing/texttransformation~TextTransformationDescription>} module:typing/texttransformation~TextTransformationConfig#remove\n */\n/* eslint-enable max-len */\n\ntype NormalizedTransformationConfig = {\n\tfrom: RegExp;\n\tto: ( matches: Array<string> ) => Array<string | null>;\n};\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ TextTransformation.pluginName ]: TextTransformation;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/utils/findattributerange\n */\n\nimport type { Position, Model, Range } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Returns a model range that covers all consecutive nodes with the same `attributeName` and its `value`\n * that intersect the given `position`.\n *\n * It can be used e.g. to get the entire range on which the `linkHref` attribute needs to be changed when having a\n * selection inside a link.\n *\n * @param {module:engine/model/position~Position} position The start position.\n * @param {String} attributeName The attribute name.\n * @param {String} value The attribute value.\n * @param {module:engine/model/model~Model} model The model instance.\n * @returns {module:engine/model/range~Range} The link range.\n */\nexport default function findAttributeRange(\n\tposition: Position,\n\tattributeName: string,\n\tvalue: unknown,\n\tmodel: Model\n): Range {\n\treturn model.createRange(\n\t\t_findBound( position, attributeName, value, true, model ),\n\t\t_findBound( position, attributeName, value, false, model )\n\t);\n}\n\n// Walks forward or backward (depends on the `lookBack` flag), node by node, as long as they have the same attribute value\n// and returns a position just before or after (depends on the `lookBack` flag) the last matched node.\n//\n// @param {module:engine/model/position~Position} position The start position.\n// @param {String} attributeName The attribute name.\n// @param {String} value The attribute value.\n// @param {Boolean} lookBack Whether the walk direction is forward (`false`) or backward (`true`).\n// @returns {module:engine/model/position~Position} The position just before the last matched node.\nfunction _findBound(\n\tposition: Position,\n\tattributeName: string,\n\tvalue: unknown,\n\tlookBack: boolean,\n\tmodel: Model\n): Position {\n\t// Get node before or after position (depends on `lookBack` flag).\n\t// When position is inside text node then start searching from text node.\n\tlet node = position.textNode || ( lookBack ? position.nodeBefore : position.nodeAfter );\n\n\tlet lastNode = null;\n\n\twhile ( node && node.getAttribute( attributeName ) == value ) {\n\t\tlastNode = node;\n\t\tnode = lookBack ? node.previousSibling : node.nextSibling;\n\t}\n\n\treturn lastNode ? model.createPositionAt( lastNode, lookBack ? 'before' : 'after' ) : position;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport findAttributeRange from './findattributerange';\nimport type { Editor } from '@ckeditor/ckeditor5-core';\nimport type { ViewElement } from '@ckeditor/ckeditor5-engine';\n\n/**\n * @module typing/utils/inlinehighlight\n */\n\n/**\n * Adds a visual highlight style to an attribute element in which the selection is anchored.\n * Together with two-step caret movement, they indicate that the user is typing inside the element.\n *\n * Highlight is turned on by adding the given class to the attribute element in the view:\n *\n * * The class is removed before the conversion has started, as callbacks added with the `'highest'` priority\n * to {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} events.\n * * The class is added in the view post fixer, after other changes in the model tree were converted to the view.\n *\n * This way, adding and removing the highlight does not interfere with conversion.\n *\n * Usage:\n *\n *\t\timport inlineHighlight from '@ckeditor/ckeditor5-typing/src/utils/inlinehighlight';\n *\n *\t\t// Make `ck-link_selected` class be applied on an `a` element\n *\t\t// whenever the corresponding `linkHref` attribute element is selected.\n *\t\tinlineHighlight( editor, 'linkHref', 'a', 'ck-link_selected' );\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n * @param {String} attributeName The attribute name to check.\n * @param {String} tagName The tagName of a view item.\n * @param {String} className The class name to apply in the view.\n */\nexport default function inlineHighlight(\n\teditor: Editor,\n\tattributeName: string,\n\ttagName: string,\n\tclassName: string\n): void {\n\tconst view = editor.editing.view;\n\tconst highlightedElements = new Set<ViewElement>();\n\n\t// Adding the class.\n\tview.document.registerPostFixer( writer => {\n\t\tconst selection = editor.model.document.selection;\n\t\tlet changed = false;\n\n\t\tif ( selection.hasAttribute( attributeName ) ) {\n\t\t\tconst modelRange = findAttributeRange(\n\t\t\t\tselection.getFirstPosition()!,\n\t\t\t\tattributeName,\n\t\t\t\tselection.getAttribute( attributeName ),\n\t\t\t\teditor.model\n\t\t\t);\n\t\t\tconst viewRange = editor.editing.mapper.toViewRange( modelRange );\n\n\t\t\t// There might be multiple view elements in the `viewRange`, for example, when the `a` element is\n\t\t\t// broken by a UIElement.\n\t\t\tfor ( const item of viewRange.getItems() ) {\n\t\t\t\tif ( item.is( 'element', tagName ) && !item.hasClass( className ) ) {\n\t\t\t\t\twriter.addClass( className, item );\n\t\t\t\t\thighlightedElements.add( item );\n\t\t\t\t\tchanged = true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn changed;\n\t} );\n\n\t// Removing the class.\n\teditor.conversion.for( 'editingDowncast' ).add( dispatcher => {\n\t\t// Make sure the highlight is removed on every possible event, before conversion is started.\n\t\tdispatcher.on( 'insert', removeHighlight, { priority: 'highest' } );\n\t\tdispatcher.on( 'remove', removeHighlight, { priority: 'highest' } );\n\t\tdispatcher.on( 'attribute', removeHighlight, { priority: 'highest' } );\n\t\tdispatcher.on( 'selection', removeHighlight, { priority: 'highest' } );\n\n\t\tfunction removeHighlight() {\n\t\t\tview.change( writer => {\n\t\t\t\tfor ( const item of highlightedElements.values() ) {\n\t\t\t\t\twriter.removeClass( className, item );\n\t\t\t\t\thighlightedElements.delete( item );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { LiveRange } from 'ckeditor5/src/engine';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The block autoformatting engine. It allows to format various block patterns. For example,\n * it can be configured to turn a paragraph starting with `*` and followed by a space into a list item.\n *\n * The autoformatting operation is integrated with the undo manager,\n * so the autoformatting step can be undone if the user's intention was not to format the text.\n *\n * See the {@link module:autoformat/blockautoformatediting~blockAutoformatEditing `blockAutoformatEditing`} documentation\n * to learn how to create custom block autoformatters. You can also use\n * the {@link module:autoformat/autoformat~Autoformat} feature which enables a set of default autoformatters\n * (lists, headings, bold and italic).\n *\n * @module autoformat/blockautoformatediting\n */\n\n/**\n * Creates a listener triggered on {@link module:engine/model/document~Document#event:change:data `change:data`} event in the document.\n * Calls the callback when inserted text matches the regular expression or the command name\n * if provided instead of the callback.\n *\n * Examples of usage:\n *\n * To convert a paragraph to heading 1 when `- ` is typed, using just the command name:\n *\n *\t\tblockAutoformatEditing( editor, plugin, /^\\- $/, 'heading1' );\n *\n * To convert a paragraph to heading 1 when `- ` is typed, using just the callback:\n *\n *\t\tblockAutoformatEditing( editor, plugin, /^\\- $/, ( context ) => {\n *\t\t\tconst { match } = context;\n *\t\t\tconst headingLevel = match[ 1 ].length;\n *\n *\t\t\teditor.execute( 'heading', {\n *\t\t\t\tformatId: `heading${ headingLevel }`\n *\t\t\t} );\n * \t\t} );\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n * @param {module:autoformat/autoformat~Autoformat} plugin The autoformat plugin instance.\n * @param {RegExp} pattern The regular expression to execute on just inserted text. The regular expression is tested against the text\n * from the beginning until the caret position.\n * @param {Function|String} callbackOrCommand The callback to execute or the command to run when the text is matched.\n * In case of providing the callback, it receives the following parameter:\n * * {Object} match RegExp.exec() result of matching the pattern to inserted text.\n */\nexport default function blockAutoformatEditing( editor, plugin, pattern, callbackOrCommand ) {\n\tlet callback;\n\tlet command = null;\n\n\tif ( typeof callbackOrCommand == 'function' ) {\n\t\tcallback = callbackOrCommand;\n\t} else {\n\t\t// We assume that the actual command name was provided.\n\t\tcommand = editor.commands.get( callbackOrCommand );\n\n\t\tcallback = () => {\n\t\t\teditor.execute( callbackOrCommand );\n\t\t};\n\t}\n\n\teditor.model.document.on( 'change:data', ( evt, batch ) => {\n\t\tif ( command && !command.isEnabled || !plugin.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst range = first( editor.model.document.selection.getRanges() );\n\n\t\tif ( !range.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( batch.isUndo || !batch.isLocal ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst changes = Array.from( editor.model.document.differ.getChanges() );\n\t\tconst entry = changes[ 0 ];\n\n\t\t// Typing is represented by only a single change.\n\t\tif ( changes.length != 1 || entry.type !== 'insert' || entry.name != '$text' || entry.length != 1 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst blockToFormat = entry.position.parent;\n\n\t\t// Block formatting should be disabled in codeBlocks (#5800).\n\t\tif ( blockToFormat.is( 'element', 'codeBlock' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Only list commands and custom callbacks can be applied inside a list.\n\t\tif ( blockToFormat.is( 'element', 'listItem' ) &&\n\t\t\ttypeof callbackOrCommand !== 'function' &&\n\t\t\t![ 'numberedList', 'bulletedList', 'todoList' ].includes( callbackOrCommand )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\t// In case a command is bound, do not re-execute it over an existing block style which would result with a style removal.\n\t\t// Instead just drop processing so that autoformat trigger text is not lost. E.g. writing \"# \" in a level 1 heading.\n\t\tif ( command && command.value === true ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst firstNode = blockToFormat.getChild( 0 );\n\t\tconst firstNodeRange = editor.model.createRangeOn( firstNode );\n\n\t\t// Range is only expected to be within or at the very end of the first text node.\n\t\tif ( !firstNodeRange.containsRange( range ) && !range.end.isEqual( firstNodeRange.end ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst match = pattern.exec( firstNode.data.substr( 0, range.end.offset ) );\n\n\t\t// ...and this text node's data match the pattern.\n\t\tif ( !match ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Use enqueueChange to create new batch to separate typing batch from the auto-format changes.\n\t\teditor.model.enqueueChange( writer => {\n\t\t\t// Matched range.\n\t\t\tconst start = writer.createPositionAt( blockToFormat, 0 );\n\t\t\tconst end = writer.createPositionAt( blockToFormat, match[ 0 ].length );\n\t\t\tconst range = new LiveRange( start, end );\n\n\t\t\tconst wasChanged = callback( { match } );\n\n\t\t\t// Remove matched text.\n\t\t\tif ( wasChanged !== false ) {\n\t\t\t\twriter.remove( range );\n\n\t\t\t\tconst selectionRange = editor.model.document.selection.getFirstRange();\n\t\t\t\tconst blockRange = writer.createRangeIn( blockToFormat );\n\n\t\t\t\t// If the block is empty and the document selection has been moved when\n\t\t\t\t// applying formatting (e.g. is now in newly created block).\n\t\t\t\tif ( blockToFormat.isEmpty && !blockRange.isEqual( selectionRange ) && !blockRange.containsRange( selectionRange, true ) ) {\n\t\t\t\t\twriter.remove( blockToFormat );\n\t\t\t\t}\n\t\t\t}\n\t\t\trange.detach();\n\n\t\t\teditor.model.enqueueChange( () => {\n\t\t\t\teditor.plugins.get( 'Delete' ).requestUndoOnBackspace();\n\t\t\t} );\n\t\t} );\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * The inline autoformatting engine. It allows to format various inline patterns. For example,\n * it can be configured to make \"foo\" bold when typed `**foo**` (the `**` markers will be removed).\n *\n * The autoformatting operation is integrated with the undo manager,\n * so the autoformatting step can be undone if the user's intention was not to format the text.\n *\n * See the {@link module:autoformat/inlineautoformatediting~inlineAutoformatEditing `inlineAutoformatEditing`} documentation\n * to learn how to create custom inline autoformatters. You can also use\n * the {@link module:autoformat/autoformat~Autoformat} feature which enables a set of default autoformatters\n * (lists, headings, bold and italic).\n *\n * @module autoformat/inlineautoformatediting\n */\n\n/**\n * Enables autoformatting mechanism for a given {@link module:core/editor/editor~Editor}.\n *\n * It formats the matched text by applying the given model attribute or by running the provided formatting callback.\n * On every {@link module:engine/model/document~Document#event:change:data data change} in the model document\n * the autoformatting engine checks the text on the left of the selection\n * and executes the provided action if the text matches given criteria (regular expression or callback).\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n * @param {module:autoformat/autoformat~Autoformat} plugin The autoformat plugin instance.\n * @param {Function|RegExp} testRegexpOrCallback The regular expression or callback to execute on text.\n * Provided regular expression *must* have three capture groups. The first and the third capture group\n * should match opening and closing delimiters. The second capture group should match the text to format.\n *\n *\t\t// Matches the `**bold text**` pattern.\n *\t\t// There are three capturing groups:\n *\t\t// - The first to match the starting `**` delimiter.\n *\t\t// - The second to match the text to format.\n *\t\t// - The third to match the ending `**` delimiter.\n *\t\tinlineAutoformatEditing( editor, plugin, /(\\*\\*)([^\\*]+?)(\\*\\*)$/g, formatCallback );\n *\n * When a function is provided instead of the regular expression, it will be executed with the text to match as a parameter.\n * The function should return proper \"ranges\" to delete and format.\n *\n *\t\t{\n *\t\t\tremove: [\n *\t\t\t\t[ 0, 1 ],\t// Remove the first letter from the given text.\n *\t\t\t\t[ 5, 6 ]\t// Remove the 6th letter from the given text.\n *\t\t\t],\n *\t\t\tformat: [\n *\t\t\t\t[ 1, 5 ]\t// Format all letters from 2nd to 5th.\n *\t\t\t]\n *\t\t}\n *\n * @param {Function} formatCallback A callback to apply actual formatting.\n * It should return `false` if changes should not be applied (e.g. if a command is disabled).\n *\n *\t\tinlineAutoformatEditing( editor, plugin, /(\\*\\*)([^\\*]+?)(\\*\\*)$/g, ( writer, rangesToFormat ) => {\n *\t\t\tconst command = editor.commands.get( 'bold' );\n *\n *\t\t\tif ( !command.isEnabled ) {\n *\t\t\t\treturn false;\n *\t\t\t}\n *\n *\t\t\tconst validRanges = editor.model.schema.getValidRanges( rangesToFormat, 'bold' );\n *\n *\t\t\tfor ( let range of validRanges ) {\n *\t\t\t\twriter.setAttribute( 'bold', true, range );\n *\t\t\t}\n *\t\t} );\n */\nexport default function inlineAutoformatEditing( editor, plugin, testRegexpOrCallback, formatCallback ) {\n\tlet regExp;\n\tlet testCallback;\n\n\tif ( testRegexpOrCallback instanceof RegExp ) {\n\t\tregExp = testRegexpOrCallback;\n\t} else {\n\t\ttestCallback = testRegexpOrCallback;\n\t}\n\n\t// A test callback run on changed text.\n\ttestCallback = testCallback || ( text => {\n\t\tlet result;\n\t\tconst remove = [];\n\t\tconst format = [];\n\n\t\twhile ( ( result = regExp.exec( text ) ) !== null ) {\n\t\t\t// There should be full match and 3 capture groups.\n\t\t\tif ( result && result.length < 4 ) {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tlet {\n\t\t\t\tindex,\n\t\t\t\t'1': leftDel,\n\t\t\t\t'2': content,\n\t\t\t\t'3': rightDel\n\t\t\t} = result;\n\n\t\t\t// Real matched string - there might be some non-capturing groups so we need to recalculate starting index.\n\t\t\tconst found = leftDel + content + rightDel;\n\t\t\tindex += result[ 0 ].length - found.length;\n\n\t\t\t// Start and End offsets of delimiters to remove.\n\t\t\tconst delStart = [\n\t\t\t\tindex,\n\t\t\t\tindex + leftDel.length\n\t\t\t];\n\t\t\tconst delEnd = [\n\t\t\t\tindex + leftDel.length + content.length,\n\t\t\t\tindex + leftDel.length + content.length + rightDel.length\n\t\t\t];\n\n\t\t\tremove.push( delStart );\n\t\t\tremove.push( delEnd );\n\n\t\t\tformat.push( [ index + leftDel.length, index + leftDel.length + content.length ] );\n\t\t}\n\n\t\treturn {\n\t\t\tremove,\n\t\t\tformat\n\t\t};\n\t} );\n\n\teditor.model.document.on( 'change:data', ( evt, batch ) => {\n\t\tif ( batch.isUndo || !batch.isLocal || !plugin.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\t// Do nothing if selection is not collapsed.\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst changes = Array.from( model.document.differ.getChanges() );\n\t\tconst entry = changes[ 0 ];\n\n\t\t// Typing is represented by only a single change.\n\t\tif ( changes.length != 1 || entry.type !== 'insert' || entry.name != '$text' || entry.length != 1 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst focus = selection.focus;\n\t\tconst block = focus.parent;\n\t\tconst { text, range } = getTextAfterCode( model.createRange( model.createPositionAt( block, 0 ), focus ), model );\n\t\tconst testOutput = testCallback( text );\n\t\tconst rangesToFormat = testOutputToRanges( range.start, testOutput.format, model );\n\t\tconst rangesToRemove = testOutputToRanges( range.start, testOutput.remove, model );\n\n\t\tif ( !( rangesToFormat.length && rangesToRemove.length ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Use enqueueChange to create new batch to separate typing batch from the auto-format changes.\n\t\tmodel.enqueueChange( writer => {\n\t\t\t// Apply format.\n\t\t\tconst hasChanged = formatCallback( writer, rangesToFormat );\n\n\t\t\t// Strict check on `false` to have backward compatibility (when callbacks were returning `undefined`).\n\t\t\tif ( hasChanged === false ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Remove delimiters - use reversed order to not mix the offsets while removing.\n\t\t\tfor ( const range of rangesToRemove.reverse() ) {\n\t\t\t\twriter.remove( range );\n\t\t\t}\n\n\t\t\tmodel.enqueueChange( () => {\n\t\t\t\teditor.plugins.get( 'Delete' ).requestUndoOnBackspace();\n\t\t\t} );\n\t\t} );\n\t} );\n}\n\n// Converts output of the test function provided to the inlineAutoformatEditing and converts it to the model ranges\n// inside provided block.\n//\n// @private\n// @param {module:engine/model/position~Position} start\n// @param {Array.<Array>} arrays\n// @param {module:engine/model/model~Model} model\nfunction testOutputToRanges( start, arrays, model ) {\n\treturn arrays\n\t\t.filter( array => ( array[ 0 ] !== undefined && array[ 1 ] !== undefined ) )\n\t\t.map( array => {\n\t\t\treturn model.createRange( start.getShiftedBy( array[ 0 ] ), start.getShiftedBy( array[ 1 ] ) );\n\t\t} );\n}\n\n// Returns the last text line after the last code element from the given range.\n// It is similar to {@link module:typing/utils/getlasttextline.getLastTextLine `getLastTextLine()`},\n// but it ignores any text before the last `code`.\n//\n// @param {module:engine/model/range~Range} range\n// @param {module:engine/model/model~Model} model\n// @returns {module:typing/utils/getlasttextline~LastTextLineData}\nfunction getTextAfterCode( range, model ) {\n\tlet start = range.start;\n\n\tconst text = Array.from( range.getItems() ).reduce( ( rangeText, node ) => {\n\t\t// Trim text to a last occurrence of an inline element and update range start.\n\t\tif ( !( node.is( '$text' ) || node.is( '$textProxy' ) ) || node.getAttribute( 'code' ) ) {\n\t\t\tstart = model.createPositionAfter( node );\n\n\t\t\treturn '';\n\t\t}\n\n\t\treturn rangeText + node.data;\n\t}, '' );\n\n\treturn { text, range: model.createRange( start, range.end ) };\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module autoformat/autoformat\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Delete } from 'ckeditor5/src/typing';\n\nimport blockAutoformatEditing from './blockautoformatediting';\nimport inlineAutoformatEditing from './inlineautoformatediting';\n\n/**\n * Enables a set of predefined autoformatting actions.\n *\n * For a detailed overview, check the {@glink features/autoformat Autoformatting feature documentation}\n * and the {@glink api/autoformat package page}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Autoformat extends Plugin {\n\t/**\n\t * @inheritdoc\n\t */\n\tstatic get requires() {\n\t\treturn [ Delete ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Autoformat';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tthis._addListAutoformats();\n\t\tthis._addBasicStylesAutoformats();\n\t\tthis._addHeadingAutoformats();\n\t\tthis._addBlockQuoteAutoformats();\n\t\tthis._addCodeBlockAutoformats();\n\t\tthis._addHorizontalLineAutoformats();\n\t}\n\n\t/**\n\t * Adds autoformatting related to the {@link module:list/list~List}.\n\t *\n\t * When typed:\n\t * - `* ` or `- ` &ndash; A paragraph will be changed to a bulleted list.\n\t * - `1. ` or `1) ` &ndash; A paragraph will be changed to a numbered list (\"1\" can be any digit or a list of digits).\n\t * - `[] ` or `[ ] ` &ndash; A paragraph will be changed to a to-do list.\n\t * - `[x] ` or `[ x ] ` &ndash; A paragraph will be changed to a checked to-do list.\n\t *\n\t * @private\n\t */\n\t_addListAutoformats() {\n\t\tconst commands = this.editor.commands;\n\n\t\tif ( commands.get( 'bulletedList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^[*-]\\s$/, 'bulletedList' );\n\t\t}\n\n\t\tif ( commands.get( 'numberedList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^1[.|)]\\s$/, 'numberedList' );\n\t\t}\n\n\t\tif ( commands.get( 'todoList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^\\[\\s?\\]\\s$/, 'todoList' );\n\t\t}\n\n\t\tif ( commands.get( 'checkTodoList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^\\[\\s?x\\s?\\]\\s$/, () => {\n\t\t\t\tthis.editor.execute( 'todoList' );\n\t\t\t\tthis.editor.execute( 'checkTodoList' );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to the {@link module:basic-styles/bold~Bold},\n\t * {@link module:basic-styles/italic~Italic}, {@link module:basic-styles/code~Code}\n\t * and {@link module:basic-styles/strikethrough~Strikethrough}\n\t *\n\t * When typed:\n\t * - `**foobar**` &ndash; `**` characters are removed and `foobar` is set to bold,\n\t * - `__foobar__` &ndash; `__` characters are removed and `foobar` is set to bold,\n\t * - `*foobar*` &ndash; `*` characters are removed and `foobar` is set to italic,\n\t * - `_foobar_` &ndash; `_` characters are removed and `foobar` is set to italic,\n\t * - ``` `foobar` &ndash; ``` ` ``` characters are removed and `foobar` is set to code,\n\t * - `~~foobar~~` &ndash; `~~` characters are removed and `foobar` is set to strikethrough.\n\t *\n\t * @private\n\t */\n\t_addBasicStylesAutoformats() {\n\t\tconst commands = this.editor.commands;\n\n\t\tif ( commands.get( 'bold' ) ) {\n\t\t\tconst boldCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'bold' );\n\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(\\*\\*)([^*]+)(\\*\\*)$/g, boldCallback );\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(__)([^_]+)(__)$/g, boldCallback );\n\t\t}\n\n\t\tif ( commands.get( 'italic' ) ) {\n\t\t\tconst italicCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'italic' );\n\n\t\t\t// The italic autoformatter cannot be triggered by the bold markers, so we need to check the\n\t\t\t// text before the pattern (e.g. `(?:^|[^\\*])`).\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(\\*)([^*_]+)(\\*)$/g, italicCallback );\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(_)([^_]+)(_)$/g, italicCallback );\n\t\t}\n\n\t\tif ( commands.get( 'code' ) ) {\n\t\t\tconst codeCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'code' );\n\n\t\t\tinlineAutoformatEditing( this.editor, this, /(`)([^`]+)(`)$/g, codeCallback );\n\t\t}\n\n\t\tif ( commands.get( 'strikethrough' ) ) {\n\t\t\tconst strikethroughCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'strikethrough' );\n\n\t\t\tinlineAutoformatEditing( this.editor, this, /(~~)([^~]+)(~~)$/g, strikethroughCallback );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:heading/heading~Heading}.\n\t *\n\t * It is using a number at the end of the command name to associate it with the proper trigger:\n\t *\n\t * * `heading` with value `heading1` will be executed when typing `#`,\n\t * * `heading` with value `heading2` will be executed when typing `##`,\n\t * * ... up to `heading6` and `######`.\n\t *\n\t * @private\n\t */\n\t_addHeadingAutoformats() {\n\t\tconst command = this.editor.commands.get( 'heading' );\n\n\t\tif ( command ) {\n\t\t\tcommand.modelElements\n\t\t\t\t.filter( name => name.match( /^heading[1-6]$/ ) )\n\t\t\t\t.forEach( modelName => {\n\t\t\t\t\tconst level = modelName[ 7 ];\n\t\t\t\t\tconst pattern = new RegExp( `^(#{${ level }})\\\\s$` );\n\n\t\t\t\t\tblockAutoformatEditing( this.editor, this, pattern, () => {\n\t\t\t\t\t\t// Should only be active if command is enabled and heading style associated with pattern is inactive.\n\t\t\t\t\t\tif ( !command.isEnabled || command.value === modelName ) {\n\t\t\t\t\t\t\treturn false;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tthis.editor.execute( 'heading', { value: modelName } );\n\t\t\t\t\t} );\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:block-quote/blockquote~BlockQuote}.\n\t *\n\t * When typed:\n\t * * `> ` &ndash; A paragraph will be changed to a block quote.\n\t *\n\t * @private\n\t */\n\t_addBlockQuoteAutoformats() {\n\t\tif ( this.editor.commands.get( 'blockQuote' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^>\\s$/, 'blockQuote' );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:code-block/codeblock~CodeBlock}.\n\t *\n\t * When typed:\n\t * - `` ``` `` &ndash; A paragraph will be changed to a code block.\n\t *\n\t * @private\n\t */\n\t_addCodeBlockAutoformats() {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\tif ( editor.commands.get( 'codeBlock' ) ) {\n\t\t\tblockAutoformatEditing( editor, this, /^```$/, () => {\n\t\t\t\tif ( selection.getFirstPosition().parent.is( 'element', 'listItem' ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t\tthis.editor.execute( 'codeBlock', {\n\t\t\t\t\tusePreviousLanguageChoice: true\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:horizontal-line/horizontalline~HorizontalLine}.\n\t *\n\t * When typed:\n\t * - `` --- `` &ndash; Will be replaced with a horizontal line.\n\t *\n\t * @private\n\t */\n\t_addHorizontalLineAutoformats() {\n\t\tif ( this.editor.commands.get( 'horizontalLine' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^---$/, 'horizontalLine' );\n\t\t}\n\t}\n}\n\n// Helper function for getting `inlineAutoformatEditing` callbacks that checks if command is enabled.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {String} attributeKey\n// @returns {Function}\nfunction getCallbackFunctionForInlineAutoformat( editor, attributeKey ) {\n\treturn ( writer, rangesToFormat ) => {\n\t\tconst command = editor.commands.get( attributeKey );\n\n\t\tif ( !command.isEnabled ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst validRanges = editor.model.schema.getValidRanges( rangesToFormat, attributeKey );\n\n\t\tfor ( const range of validRanges ) {\n\t\t\twriter.setAttribute( attributeKey, true, range );\n\t\t}\n\n\t\t// After applying attribute to the text, remove given attribute from the selection.\n\t\t// This way user is able to type a text without attribute used by auto formatter.\n\t\twriter.removeSelectionAttribute( attributeKey );\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/attributecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * An extension of the base {@link module:core/command~Command} class, which provides utilities for a command\n * that toggles a single attribute on a text or an element.\n *\n * `AttributeCommand` uses {@link module:engine/model/document~Document#selection}\n * to decide which nodes (if any) should be changed, and applies or removes the attribute from them.\n *\n * The command checks the {@link module:engine/model/model~Model#schema} to decide if it can be enabled\n * for the current selection and to which nodes the attribute can be applied.\n *\n * @extends module:core/command~Command\n */\nexport default class AttributeCommand extends Command {\n\t/**\n\t * @param {module:core/editor/editor~Editor} editor\n\t * @param {String} attributeKey Attribute that will be set by the command.\n\t */\n\tconstructor( editor, attributeKey ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The attribute that will be set by the command.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.attributeKey = attributeKey;\n\n\t\t/**\n\t\t * Flag indicating whether the command is active. The command is active when the\n\t\t * {@link module:engine/model/selection~Selection#hasAttribute selection has the attribute} which means that:\n\t\t *\n\t\t * * If the selection is not empty &ndash; That the attribute is set on the first node in the selection that allows this attribute.\n\t\t * * If the selection is empty &ndash; That the selection has the attribute itself (which means that newly typed\n\t\t * text will have this attribute, too).\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #value\n\t\t */\n\t}\n\n\t/**\n\t * Updates the command's {@link #value} and {@link #isEnabled} based on the current selection.\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.value = this._getValueFromFirstAllowedNode();\n\t\tthis.isEnabled = model.schema.checkAttributeInSelection( doc.selection, this.attributeKey );\n\t}\n\n\t/**\n\t * Executes the command &mdash; applies the attribute to the selection or removes it from the selection.\n\t *\n\t * If the command is active (`value == true`), it will remove attributes. Otherwise, it will set attributes.\n\t *\n\t * The execution result differs, depending on the {@link module:engine/model/document~Document#selection}:\n\t *\n\t * * If the selection is on a range, the command applies the attribute to all nodes in that range\n\t * (if they are allowed to have this attribute by the {@link module:engine/model/schema~Schema schema}).\n\t * * If the selection is collapsed in a non-empty node, the command applies the attribute to the\n\t * {@link module:engine/model/document~Document#selection} itself (note that typed characters copy attributes from the selection).\n\t * * If the selection is collapsed in an empty node, the command applies the attribute to the parent node of the selection (note\n\t * that the selection inherits all attributes from a node if it is in an empty node).\n\t *\n\t * @fires execute\n\t * @param {Object} [options] Command options.\n\t * @param {Boolean} [options.forceValue] If set, it will force the command behavior. If `true`, the command will apply the attribute,\n\t * otherwise the command will remove the attribute.\n\t * If not set, the command will look for its current value to decide what it should do.\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst selection = doc.selection;\n\t\tconst value = ( options.forceValue === undefined ) ? !this.value : options.forceValue;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tif ( value ) {\n\t\t\t\t\twriter.setSelectionAttribute( this.attributeKey, true );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeSelectionAttribute( this.attributeKey );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst ranges = model.schema.getValidRanges( selection.getRanges(), this.attributeKey );\n\n\t\t\t\tfor ( const range of ranges ) {\n\t\t\t\t\tif ( value ) {\n\t\t\t\t\t\twriter.setAttribute( this.attributeKey, value, range );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.removeAttribute( this.attributeKey, range );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the attribute value of the first node in the selection that allows the attribute.\n\t * For the collapsed selection returns the selection attribute.\n\t *\n\t * @private\n\t * @returns {Boolean} The attribute value.\n\t */\n\t_getValueFromFirstAllowedNode() {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tif ( selection.isCollapsed ) {\n\t\t\treturn selection.hasAttribute( this.attributeKey );\n\t\t}\n\n\t\tfor ( const range of selection.getRanges() ) {\n\t\t\tfor ( const item of range.getItems() ) {\n\t\t\t\tif ( schema.checkAttribute( item, this.attributeKey ) ) {\n\t\t\t\t\treturn item.hasAttribute( this.attributeKey );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/bold/boldediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst BOLD = 'bold';\n\n/**\n * The bold editing feature.\n *\n * It registers the `'bold'` command and introduces the `bold` attribute in the model which renders to the view\n * as a `<strong>` element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BoldEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'BoldEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\t// Allow bold attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: BOLD } );\n\t\teditor.model.schema.setAttributeProperties( BOLD, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Build converter from model to view for data and editing pipelines.\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: BOLD,\n\t\t\tview: 'strong',\n\t\t\tupcastAlso: [\n\t\t\t\t'b',\n\t\t\t\tviewElement => {\n\t\t\t\t\tconst fontWeight = viewElement.getStyle( 'font-weight' );\n\n\t\t\t\t\tif ( !fontWeight ) {\n\t\t\t\t\t\treturn null;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Value of the `font-weight` attribute can be defined as a string or a number.\n\t\t\t\t\tif ( fontWeight == 'bold' || Number( fontWeight ) >= 600 ) {\n\t\t\t\t\t\treturn {\n\t\t\t\t\t\t\tname: true,\n\t\t\t\t\t\t\tstyles: [ 'font-weight' ]\n\t\t\t\t\t\t};\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create bold command.\n\t\teditor.commands.add( BOLD, new AttributeCommand( editor, BOLD ) );\n\n\t\t// Set the Ctrl+B keystroke.\n\t\teditor.keystrokes.set( 'CTRL+B', BOLD );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/bold/boldui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nconst BOLD = 'bold';\n\n/**\n * The bold UI feature. It introduces the Bold button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BoldUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'BoldUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add bold button to feature components.\n\t\teditor.ui.componentFactory.add( BOLD, locale => {\n\t\t\tconst command = editor.commands.get( BOLD );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Bold' ),\n\t\t\t\ticon: icons.bold,\n\t\t\t\tkeystroke: 'CTRL+B',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( BOLD );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/italic/italicediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst ITALIC = 'italic';\n\n/**\n * The italic editing feature.\n *\n * It registers the `'italic'` command, the <kbd>Ctrl+I</kbd> keystroke and introduces the `italic` attribute in the model\n * which renders to the view as an `<i>` element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ItalicEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ItalicEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Allow italic attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: ITALIC } );\n\t\teditor.model.schema.setAttributeProperties( ITALIC, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: ITALIC,\n\t\t\tview: 'i',\n\t\t\tupcastAlso: [\n\t\t\t\t'em',\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'font-style': 'italic'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create italic command.\n\t\teditor.commands.add( ITALIC, new AttributeCommand( editor, ITALIC ) );\n\n\t\t// Set the Ctrl+I keystroke.\n\t\teditor.keystrokes.set( 'CTRL+I', ITALIC );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m9.586 14.633.021.004c-.036.335.095.655.393.962.082.083.173.15.274.201h1.474a.6.6 0 1 1 0 1.2H5.304a.6.6 0 0 1 0-1.2h1.15c.474-.07.809-.182 1.005-.334.157-.122.291-.32.404-.597l2.416-9.55a1.053 1.053 0 0 0-.281-.823 1.12 1.12 0 0 0-.442-.296H8.15a.6.6 0 0 1 0-1.2h6.443a.6.6 0 1 1 0 1.2h-1.195c-.376.056-.65.155-.823.296-.215.175-.423.439-.623.79l-2.366 9.347z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/italic/italicui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport italicIcon from '../../theme/icons/italic.svg';\n\nconst ITALIC = 'italic';\n\n/**\n * The italic UI feature. It introduces the Italic button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ItalicUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ItalicUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add bold button to feature components.\n\t\teditor.ui.componentFactory.add( ITALIC, locale => {\n\t\t\tconst command = editor.commands.get( ITALIC );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Italic' ),\n\t\t\t\ticon: italicIcon,\n\t\t\t\tkeystroke: 'CTRL+I',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( ITALIC );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/superscript/superscriptediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst SUPERSCRIPT = 'superscript';\n\n/**\n * The superscript editing feature.\n *\n * It registers the `super` command and introduces the `super` attribute in the model which renders to the view\n * as a `<super>` element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class SuperscriptEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'SuperscriptEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\t// Allow super attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: SUPERSCRIPT } );\n\t\teditor.model.schema.setAttributeProperties( SUPERSCRIPT, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Build converter from model to view for data and editing pipelines.\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: SUPERSCRIPT,\n\t\t\tview: 'sup',\n\t\t\tupcastAlso: [\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'vertical-align': 'super'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create super command.\n\t\teditor.commands.add( SUPERSCRIPT, new AttributeCommand( editor, SUPERSCRIPT ) );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M15.677 8.678h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 1-.159.393c-.105.108-.266.162-.48.162h-3.594c-.245 0-.435-.066-.572-.197a.621.621 0 0 1-.205-.463c0-.114.044-.265.132-.453a1.62 1.62 0 0 1 .288-.444c.433-.436.824-.81 1.172-1.122.348-.312.597-.517.747-.615.267-.183.49-.368.667-.553.177-.185.312-.375.405-.57.093-.194.139-.384.139-.57a1.008 1.008 0 0 0-.554-.917 1.197 1.197 0 0 0-.56-.133c-.426 0-.761.182-1.005.546a2.332 2.332 0 0 0-.164.39 1.609 1.609 0 0 1-.258.488c-.096.114-.237.17-.423.17a.558.558 0 0 1-.405-.156.568.568 0 0 1-.161-.427c0-.218.05-.446.151-.683.101-.238.252-.453.452-.646s.454-.349.762-.467a2.998 2.998 0 0 1 1.081-.178c.498 0 .923.076 1.274.228a1.916 1.916 0 0 1 1.004 1.032 1.984 1.984 0 0 1-.156 1.794c-.2.32-.405.572-.613.754-.208.182-.558.468-1.048.857-.49.39-.826.691-1.008.906a2.703 2.703 0 0 0-.24.309zM7.03 10.349l3.818-3.819a.8.8 0 1 1 1.132 1.132L8.16 11.48l3.819 3.818a.8.8 0 1 1-1.132 1.132L7.03 12.61l-3.818 3.82a.8.8 0 1 1-1.132-1.132L5.9 11.48 2.08 7.662A.8.8 0 1 1 3.212 6.53l3.818 3.82z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/superscript/superscriptui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport superscriptIcon from '../../theme/icons/superscript.svg';\n\nconst SUPERSCRIPT = 'superscript';\n\n/**\n * The superscript UI feature. It introduces the Superscript button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class SuperscriptUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'SuperscriptUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add superscript button to feature components.\n\t\teditor.ui.componentFactory.add( SUPERSCRIPT, locale => {\n\t\t\tconst command = editor.commands.get( SUPERSCRIPT );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Superscript' ),\n\t\t\t\ticon: superscriptIcon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( SUPERSCRIPT );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/subscript/subscriptediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst SUBSCRIPT = 'subscript';\n\n/**\n * The subscript editing feature.\n *\n * It registers the `sub` command and introduces the `sub` attribute in the model which renders to the view\n * as a `<sub>` element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class SubscriptEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'SubscriptEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\t// Allow sub attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: SUBSCRIPT } );\n\t\teditor.model.schema.setAttributeProperties( SUBSCRIPT, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Build converter from model to view for data and editing pipelines.\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: SUBSCRIPT,\n\t\t\tview: 'sub',\n\t\t\tupcastAlso: [\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'vertical-align': 'sub'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create sub command.\n\t\teditor.commands.add( SUBSCRIPT, new AttributeCommand( editor, SUBSCRIPT ) );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m7.03 10.349 3.818-3.819a.8.8 0 1 1 1.132 1.132L8.16 11.48l3.819 3.818a.8.8 0 1 1-1.132 1.132L7.03 12.61l-3.818 3.82a.8.8 0 1 1-1.132-1.132L5.9 11.48 2.08 7.662A.8.8 0 1 1 3.212 6.53l3.818 3.82zm8.147 7.829h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 1-.159.393c-.105.108-.266.162-.48.162h-3.594c-.245 0-.435-.066-.572-.197a.621.621 0 0 1-.205-.463c0-.114.044-.265.132-.453a1.62 1.62 0 0 1 .288-.444c.433-.436.824-.81 1.172-1.122.348-.312.597-.517.747-.615.267-.183.49-.368.667-.553.177-.185.312-.375.405-.57.093-.194.139-.384.139-.57a1.008 1.008 0 0 0-.554-.917 1.197 1.197 0 0 0-.56-.133c-.426 0-.761.182-1.005.546a2.332 2.332 0 0 0-.164.39 1.609 1.609 0 0 1-.258.488c-.096.114-.237.17-.423.17a.558.558 0 0 1-.405-.156.568.568 0 0 1-.161-.427c0-.218.05-.446.151-.683.101-.238.252-.453.452-.646s.454-.349.762-.467a2.998 2.998 0 0 1 1.081-.178c.498 0 .923.076 1.274.228a1.916 1.916 0 0 1 1.004 1.032 1.984 1.984 0 0 1-.156 1.794c-.2.32-.405.572-.613.754-.208.182-.558.468-1.048.857-.49.39-.826.691-1.008.906a2.703 2.703 0 0 0-.24.309z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/subscript/subscriptui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport subscriptIcon from '../../theme/icons/subscript.svg';\n\nconst SUBSCRIPT = 'subscript';\n\n/**\n * The subscript UI feature. It introduces the Subscript button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class SubscriptUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'SubscriptUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add subscript button to feature components.\n\t\teditor.ui.componentFactory.add( SUBSCRIPT, locale => {\n\t\t\tconst command = editor.commands.get( SUBSCRIPT );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Subscript' ),\n\t\t\t\ticon: subscriptIcon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( SUBSCRIPT );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/underline/underlineediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst UNDERLINE = 'underline';\n\n/**\n * The underline editing feature.\n *\n * It registers the `'underline'` command, the <kbd>Ctrl+U</kbd> keystroke\n * and introduces the `underline` attribute in the model which renders to the view as an `<u>` element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class UnderlineEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'UnderlineEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Allow strikethrough attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: UNDERLINE } );\n\t\teditor.model.schema.setAttributeProperties( UNDERLINE, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: UNDERLINE,\n\t\t\tview: 'u',\n\t\t\tupcastAlso: {\n\t\t\t\tstyles: {\n\t\t\t\t\t'text-decoration': 'underline'\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Create underline command.\n\t\teditor.commands.add( UNDERLINE, new AttributeCommand( editor, UNDERLINE ) );\n\n\t\t// Set the Ctrl+U keystroke.\n\t\teditor.keystrokes.set( 'CTRL+U', 'underline' );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 18v-1.5h14V18zm2.2-8V3.6c0-.4.4-.6.8-.6.3 0 .7.2.7.6v6.2c0 2 1.3 2.8 3.2 2.8 1.9 0 3.4-.9 3.4-2.9V3.6c0-.3.4-.5.8-.5.3 0 .7.2.7.5V10c0 2.7-2.2 4-4.9 4-2.6 0-4.7-1.2-4.7-4z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/underline/underlineui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport underlineIcon from '../../theme/icons/underline.svg';\n\nconst UNDERLINE = 'underline';\n\n/**\n * The underline UI feature. It introduces the Underline button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class UnderlineUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'UnderlineUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add bold button to feature components.\n\t\teditor.ui.componentFactory.add( UNDERLINE, locale => {\n\t\t\tconst command = editor.commands.get( UNDERLINE );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Underline' ),\n\t\t\t\ticon: underlineIcon,\n\t\t\t\tkeystroke: 'CTRL+U',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( UNDERLINE );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/strikethrough/strikethroughediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst STRIKETHROUGH = 'strikethrough';\n\n/**\n * The strikethrough editing feature.\n *\n * It registers the `'strikethrough'` command, the <kbd>Ctrl+Shift+X</kbd> keystroke and introduces the\n * `strikethroughsthrough` attribute in the model which renders to the view\n * as a `<s>` element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class StrikethroughEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'StrikethroughEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Allow strikethrough attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: STRIKETHROUGH } );\n\t\teditor.model.schema.setAttributeProperties( STRIKETHROUGH, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: STRIKETHROUGH,\n\t\t\tview: 's',\n\t\t\tupcastAlso: [\n\t\t\t\t'del',\n\t\t\t\t'strike',\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'text-decoration': 'line-through'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create strikethrough command.\n\t\teditor.commands.add( STRIKETHROUGH, new AttributeCommand( editor, STRIKETHROUGH ) );\n\n\t\t// Set the Ctrl+Shift+X keystroke.\n\t\teditor.keystrokes.set( 'CTRL+SHIFT+X', 'strikethrough' );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M7 16.4c-.8-.4-1.5-.9-2.2-1.5a.6.6 0 0 1-.2-.5l.3-.6h1c1 1.2 2.1 1.7 3.7 1.7 1 0 1.8-.3 2.3-.6.6-.4.6-1.2.6-1.3.2-1.2-.9-2.1-.9-2.1h2.1c.3.7.4 1.2.4 1.7v.8l-.6 1.2c-.6.8-1.1 1-1.6 1.2a6 6 0 0 1-2.4.6c-1 0-1.8-.3-2.5-.6zM6.8 9 6 8.3c-.4-.5-.5-.8-.5-1.6 0-.7.1-1.3.5-1.8.4-.6 1-1 1.6-1.3a6.3 6.3 0 0 1 4.7 0 4 4 0 0 1 1.7 1l.3.7c0 .1.2.4-.2.7-.4.2-.9.1-1 0a3 3 0 0 0-1.2-1c-.4-.2-1-.3-2-.4-.7 0-1.4.2-2 .6-.8.6-1 .8-1 1.5 0 .8.5 1 1.2 1.5.6.4 1.1.7 1.9 1H6.8z\\\"/><path d=\\\"M3 10.5V9h14v1.5z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/strikethrough/strikethroughui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport strikethroughIcon from '../../theme/icons/strikethrough.svg';\n\nconst STRIKETHROUGH = 'strikethrough';\n\n/**\n * The strikethrough UI feature. It introduces the Strikethrough button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class StrikethroughUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'StrikethroughUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add strikethrough button to feature components.\n\t\teditor.ui.componentFactory.add( STRIKETHROUGH, locale => {\n\t\t\tconst command = editor.commands.get( STRIKETHROUGH );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Strikethrough' ),\n\t\t\t\ticon: strikethroughIcon,\n\t\t\t\tkeystroke: 'CTRL+SHIFT+X',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( STRIKETHROUGH );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/code/codeediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { TwoStepCaretMovement, inlineHighlight } from 'ckeditor5/src/typing';\n\nimport AttributeCommand from '../attributecommand';\n\nconst CODE = 'code';\nconst HIGHLIGHT_CLASS = 'ck-code_selected';\n\n/**\n * The code editing feature.\n *\n * It registers the `'code'` command and introduces the `code` attribute in the model which renders to the view\n * as a `<code>` element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class CodeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'CodeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TwoStepCaretMovement ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Allow code attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: CODE } );\n\t\teditor.model.schema.setAttributeProperties( CODE, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: false\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: CODE,\n\t\t\tview: 'code',\n\t\t\tupcastAlso: {\n\t\t\t\tstyles: {\n\t\t\t\t\t'word-wrap': 'break-word'\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Create code command.\n\t\teditor.commands.add( CODE, new AttributeCommand( editor, CODE ) );\n\n\t\t// Enable two-step caret movement for `code` attribute.\n\t\teditor.plugins.get( TwoStepCaretMovement ).registerAttribute( CODE );\n\n\t\t// Setup highlight over selected element.\n\t\tinlineHighlight( editor, CODE, 'code', HIGHLIGHT_CLASS );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./code.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/code/codeui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport codeIcon from '../../theme/icons/code.svg';\n\nimport '../../theme/code.css';\n\nconst CODE = 'code';\n\n/**\n * The code UI feature. It introduces the Code button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class CodeUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'CodeUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add code button to feature components.\n\t\teditor.ui.componentFactory.add( CODE, locale => {\n\t\t\tconst command = editor.commands.get( CODE );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Code' ),\n\t\t\t\ticon: codeIcon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( CODE );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m12.5 5.7 5.2 3.9v1.3l-5.6 4c-.1.2-.3.2-.5.2-.3-.1-.6-.7-.6-1l.3-.4 4.7-3.5L11.5 7l-.2-.2c-.1-.3-.1-.6 0-.8.2-.2.5-.4.8-.4a.8.8 0 0 1 .4.1zm-5.2 0L2 9.6v1.3l5.6 4c.1.2.3.2.5.2.3-.1.7-.7.6-1 0-.1 0-.3-.2-.4l-5-3.5L8.2 7l.2-.2c.1-.3.1-.6 0-.8-.2-.2-.5-.4-.8-.4a.8.8 0 0 0-.3.1z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/utils\n */\n\nimport type { Schema } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Returns attributes that should be preserved on the enter keystroke.\n *\n * Filtering is realized based on `copyOnEnter` attribute property. Read more about attribute properties\n * {@link module:engine/model/schema~Schema#setAttributeProperties here}.\n *\n * @param {module:engine/model/schema~Schema} schema\n * @param {Iterable.<*>} allAttributes attributes to filter.\n * @returns {Iterable.<*>}\n */\nexport function* getCopyOnEnterAttributes(\n\tschema: Schema,\n\tallAttributes: Iterable<[ string, unknown ]>\n): IterableIterator<[ string, unknown ]> {\n\tfor ( const attribute of allAttributes ) {\n\t\tif ( attribute && schema.getAttributeProperties( attribute[ 0 ] ).copyOnEnter ) {\n\t\t\tyield attribute;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/entercommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport { getCopyOnEnterAttributes } from './utils';\n\nimport type {\n\tDocumentSelection,\n\tModel,\n\tSchema,\n\tElement,\n\tPosition,\n\tWriter\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * Enter command. It is used by the {@link module:enter/enter~Enter Enter feature} to handle the <kbd>Enter</kbd> keystroke.\n *\n * @extends module:core/command~Command\n */\nexport default class EnterCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\tthis.enterBlock( writer );\n\t\t\tthis.fire<EnterCommandAfterExecuteEvent>( 'afterExecute', { writer } );\n\t\t} );\n\t}\n\n\t/**\n\t * Splits a block where the document selection is placed, in the way how the <kbd>Enter</kbd> key is expected to work:\n\t *\n\t *\t\t<p>Foo[]bar</p>   ->   <p>Foo</p><p>[]bar</p>\n\t *\t\t<p>Foobar[]</p>   ->   <p>Foobar</p><p>[]</p>\n\t *\t\t<p>Fo[ob]ar</p>   ->   <p>Fo</p><p>[]ar</p>\n\t *\n\t * In some cases, the split will not happen:\n\t *\n\t *        // The selection parent is a limit element:\n\t *        <figcaption>A[bc]d</figcaption>   ->   <figcaption>A[]d</figcaption>\n\t *\n\t *        // The selection spans over multiple elements:\n\t *        <h>x[x</h><p>y]y<p>   ->   <h>x</h><p>[]y</p>\n\t *\n\t * @param writer Writer to use when performing the enter action.\n\t * @returns `true` if a block was split, `false` otherwise.\n\t */\n\tpublic enterBlock( writer: Writer ): boolean {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst schema = model.schema;\n\t\tconst isSelectionEmpty = selection.isCollapsed;\n\t\tconst range = selection.getFirstRange()!;\n\t\tconst startElement = range.start.parent as Element;\n\t\tconst endElement = range.end.parent as Element;\n\n\t\t// Don't touch the roots and other limit elements.\n\t\tif ( schema.isLimit( startElement ) || schema.isLimit( endElement ) ) {\n\t\t\t// Delete the selected content but only if inside a single limit element.\n\t\t\t// Abort, when crossing limit elements boundary (e.g. <limit1>x[x</limit1>donttouchme<limit2>y]y</limit2>).\n\t\t\t// This is an edge case and it's hard to tell what should actually happen because such a selection\n\t\t\t// is not entirely valid.\n\t\t\tif ( !isSelectionEmpty && startElement == endElement ) {\n\t\t\t\tmodel.deleteContent( selection );\n\t\t\t}\n\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( isSelectionEmpty ) {\n\t\t\tconst attributesToCopy = getCopyOnEnterAttributes( writer.model.schema, selection.getAttributes() );\n\n\t\t\tsplitBlock( writer, range.start );\n\t\t\twriter.setSelectionAttribute( attributesToCopy );\n\n\t\t\treturn true;\n\t\t} else {\n\t\t\tconst leaveUnmerged = !( range.start.isAtStart && range.end.isAtEnd );\n\t\t\tconst isContainedWithinOneElement = ( startElement == endElement );\n\n\t\t\tmodel.deleteContent( selection, { leaveUnmerged } );\n\n\t\t\tif ( leaveUnmerged ) {\n\t\t\t\t// Partially selected elements.\n\t\t\t\t//\n\t\t\t\t// <h>x[xx]x</h>\t\t-> <h>x^x</h>\t\t\t-> <h>x</h><h>^x</h>\n\t\t\t\tif ( isContainedWithinOneElement ) {\n\t\t\t\t\tsplitBlock( writer, selection.focus! );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t\t// Selection over multiple elements.\n\t\t\t\t//\n\t\t\t\t// <h>x[x</h><p>y]y<p>\t-> <h>x^</h><p>y</p>\t-> <h>x</h><p>^y</p>\n\t\t\t\telse {\n\t\t\t\t\twriter.setSelection( endElement, 0 );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n}\n\nexport type EnterCommandAfterExecuteEvent = {\n\tname: 'afterExecute';\n\targs: [ { writer: Writer } ];\n};\n\nfunction splitBlock( writer: Writer, splitPos: Position ): void {\n\twriter.split( splitPos );\n\twriter.setSelection( splitPos.parent.nextSibling, 0 );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/enterobserver\n */\n\nimport {\n\tObserver,\n\tDomEventData,\n\tBubblingEventInfo,\n\ttype View,\n\ttype ViewDocumentInputEvent,\n\ttype BubblingEvent\n} from '@ckeditor/ckeditor5-engine';\n\nconst ENTER_EVENT_TYPES: Record<string, { isSoft: boolean }> = {\n\tinsertParagraph: { isSoft: false },\n\tinsertLineBreak: { isSoft: true }\n};\n\n/**\n * Enter observer introduces the {@link module:engine/view/document~Document#event:enter `Document#enter`} event.\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class EnterObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst doc = this.document;\n\n\t\tdoc.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst domEvent = data.domEvent;\n\t\t\tconst enterEventSpec = ENTER_EVENT_TYPES[ data.inputType ];\n\n\t\t\tif ( !enterEventSpec ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst event = new BubblingEventInfo( doc, 'enter', data.targetRanges[ 0 ] );\n\n\t\t\tdoc.fire( event, new DomEventData( view, domEvent, {\n\t\t\t\tisSoft: enterEventSpec.isSoft\n\t\t\t} ) );\n\n\t\t\t// Stop `beforeinput` event if `enter` event was stopped.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/753\n\t\t\tif ( event.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe(): void {}\n}\n\n/**\n * Event fired when the user presses the <kbd>Enter</kbd> key.\n *\n * Note: This event is fired by the {@link module:enter/enterobserver~EnterObserver observer}\n * (usually registered by the {@link module:enter/enter~Enter Enter feature} and\n * {@link module:enter/shiftenter~ShiftEnter ShiftEnter feature}).\n *\n * @event module:engine/view/document~Document#event:enter\n * @param {module:engine/view/observer/domeventdata~DomEventData} data\n * @param {Boolean} data.isSoft Whether it is a soft enter (<kbd>Shift</kbd>+<kbd>Enter</kbd>) or a hard enter (<kbd>Enter</kbd>).\n */\n\nexport type ViewDocumentEnterEvent = BubblingEvent<{\n\tname: 'enter';\n\targs: [ EnterEventData ];\n}>;\n\nexport interface EnterEventData extends DomEventData<InputEvent> {\n\tisSoft: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/enter\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport EnterCommand from './entercommand';\nimport EnterObserver, { type ViewDocumentEnterEvent } from './enterobserver';\n\n/**\n * This plugin handles the <kbd>Enter</kbd> keystroke (hard line break) in the editor.\n *\n * See also the {@link module:enter/shiftenter~ShiftEnter} plugin.\n *\n * For more information about this feature see the {@glink api/enter package page}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Enter extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Enter' {\n\t\treturn 'Enter';\n\t}\n\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tview.addObserver( EnterObserver );\n\n\t\teditor.commands.add( 'enter', new EnterCommand( editor ) );\n\n\t\tthis.listenTo<ViewDocumentEnterEvent>( viewDocument, 'enter', ( evt, data ) => {\n\t\t\t// When not in composition, we handle the action, so prevent the default one.\n\t\t\t// When in composition, it's the browser who modify the DOM (renderer is disabled).\n\t\t\tif ( !viewDocument.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\t// The soft enter key is handled by the ShiftEnter plugin.\n\t\t\tif ( data.isSoft ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.execute( 'enter' );\n\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface CommandsMap {\n\t\t'enter': EnterCommand;\n\t}\n\n\tinterface PluginsMap {\n\t\t[ Enter.pluginName ]: Enter;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/shiftentercommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport { getCopyOnEnterAttributes } from './utils';\n\nimport type {\n\tDocumentSelection,\n\tModel,\n\tPosition,\n\tSchema,\n\tElement,\n\tWriter\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * ShiftEnter command. It is used by the {@link module:enter/shiftenter~ShiftEnter ShiftEnter feature} to handle\n * the <kbd>Shift</kbd>+<kbd>Enter</kbd> keystroke.\n *\n * @extends module:core/command~Command\n */\nexport default class ShiftEnterCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tmodel.change( writer => {\n\t\t\tsoftBreakAction( model, writer, doc.selection );\n\t\t\tthis.fire<ShiftEnterCommandAfterExecuteEvent>( 'afterExecute', { writer } );\n\t\t} );\n\t}\n\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.isEnabled = isEnabled( model.schema, doc.selection );\n\t}\n}\n\nexport type ShiftEnterCommandAfterExecuteEvent = {\n\tname: 'afterExecute';\n\targs: [ { writer: Writer } ];\n};\n\n// Checks whether the ShiftEnter command should be enabled in the specified selection.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\nfunction isEnabled( schema: Schema, selection: DocumentSelection ): boolean {\n\t// At this moment it is okay to support single range selections only.\n\t// But in the future we may need to change that.\n\tif ( selection.rangeCount > 1 ) {\n\t\treturn false;\n\t}\n\n\tconst anchorPos = selection.anchor;\n\n\t// Check whether the break element can be inserted in the current selection anchor.\n\tif ( !anchorPos || !schema.checkChild( anchorPos, 'softBreak' ) ) {\n\t\treturn false;\n\t}\n\n\tconst range = selection.getFirstRange()!;\n\tconst startElement = range.start.parent as Element;\n\tconst endElement = range.end.parent as Element;\n\n\t// Do not modify the content if selection is cross-limit elements.\n\tif ( ( isInsideLimitElement( startElement, schema ) || isInsideLimitElement( endElement, schema ) ) && startElement !== endElement ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n// Creates a break in the way that the <kbd>Shift</kbd>+<kbd>Enter</kbd> keystroke is expected to work.\n//\n// @param {module:engine/model~Model} model\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n// Selection on which the action should be performed.\nfunction softBreakAction( model: Model, writer: Writer, selection: DocumentSelection ): void {\n\tconst isSelectionEmpty = selection.isCollapsed;\n\tconst range = selection.getFirstRange()!;\n\tconst startElement = range.start.parent as Element;\n\tconst endElement = range.end.parent as Element;\n\tconst isContainedWithinOneElement = ( startElement == endElement );\n\n\tif ( isSelectionEmpty ) {\n\t\tconst attributesToCopy = getCopyOnEnterAttributes( model.schema, selection.getAttributes() );\n\n\t\tinsertBreak( model, writer, range.end );\n\n\t\twriter.removeSelectionAttribute( selection.getAttributeKeys() );\n\t\twriter.setSelectionAttribute( attributesToCopy );\n\t} else {\n\t\tconst leaveUnmerged = !( range.start.isAtStart && range.end.isAtEnd );\n\n\t\tmodel.deleteContent( selection, { leaveUnmerged } );\n\n\t\t// Selection within one element:\n\t\t//\n\t\t// <h>x[xx]x</h>\t\t-> <h>x^x</h>\t\t\t-> <h>x<br>^x</h>\n\t\tif ( isContainedWithinOneElement ) {\n\t\t\tinsertBreak( model, writer, selection.focus! );\n\t\t}\n\t\t// Selection over multiple elements.\n\t\t//\n\t\t// <h>x[x</h><p>y]y<p>\t-> <h>x^</h><p>y</p>\t-> <h>x</h><p>^y</p>\n\t\t//\n\t\t// We chose not to insert a line break in this case because:\n\t\t//\n\t\t// * it's not a very common scenario,\n\t\t// * it actually surprised me when I saw the \"expected behavior\" in real life.\n\t\t//\n\t\t// It's ok if the user will need to be more specific where they want the <br> to be inserted.\n\t\telse {\n\t\t\t// Move the selection to the 2nd element (last step of the example above).\n\t\t\tif ( leaveUnmerged ) {\n\t\t\t\twriter.setSelection( endElement, 0 );\n\t\t\t}\n\t\t}\n\t}\n}\n\nfunction insertBreak( model: Model, writer: Writer, position: Position ): void {\n\tconst breakLineElement = writer.createElement( 'softBreak' );\n\n\tmodel.insertContent( breakLineElement, position );\n\twriter.setSelection( breakLineElement, 'after' );\n}\n\n// Checks whether the specified `element` is a child of the limit element.\n//\n// Checking whether the `<p>` element is inside a limit element:\n//   - <$root><p>Text.</p></$root> => false\n//   - <$root><limitElement><p>Text</p></limitElement></$root> => true\n//\n// @param {module:engine/model/element~Element} element\n// @param {module:engine/schema~Schema} schema\n// @returns {Boolean}\nfunction isInsideLimitElement( element: Element, schema: Schema ): boolean {\n\t// `$root` is a limit element but in this case is an invalid element.\n\tif ( element.is( 'rootElement' ) ) {\n\t\treturn false;\n\t}\n\n\treturn schema.isLimit( element ) || isInsideLimitElement( element.parent as Element, schema );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/shiftenter\n */\n\nimport ShiftEnterCommand from './shiftentercommand';\nimport EnterObserver, { type ViewDocumentEnterEvent } from './enterobserver';\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\n/**\n * This plugin handles the <kbd>Shift</kbd>+<kbd>Enter</kbd> keystroke (soft line break) in the editor.\n *\n * See also the {@link module:enter/enter~Enter} plugin.\n *\n * For more information about this feature see the {@glink api/enter package page}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ShiftEnter extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ShiftEnter' {\n\t\treturn 'ShiftEnter';\n\t}\n\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst conversion = editor.conversion;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Configure the schema.\n\t\tschema.register( 'softBreak', {\n\t\t\tallowWhere: '$text',\n\t\t\tisInline: true\n\t\t} );\n\n\t\t// Configure converters.\n\t\tconversion.for( 'upcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'softBreak',\n\t\t\t\tview: 'br'\n\t\t\t} );\n\n\t\tconversion.for( 'downcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'softBreak',\n\t\t\t\tview: ( modelElement, { writer } ) => writer.createEmptyElement( 'br' )\n\t\t\t} );\n\n\t\tview.addObserver( EnterObserver );\n\n\t\teditor.commands.add( 'shiftEnter', new ShiftEnterCommand( editor ) );\n\n\t\tthis.listenTo<ViewDocumentEnterEvent>( viewDocument, 'enter', ( evt, data ) => {\n\t\t\t// When not in composition, we handle the action, so prevent the default one.\n\t\t\t// When in composition, it's the browser who modify the DOM (renderer is disabled).\n\t\t\tif ( !viewDocument.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\t// The hard enter key is handled by the Enter plugin.\n\t\t\tif ( !data.isSoft ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.execute( 'shiftEnter' );\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface CommandsMap {\n\t\t'shiftEnter': ShiftEnterCommand;\n\t}\n\n\tinterface PluginsMap {\n\t\t[ ShiftEnter.pluginName ]: ShiftEnter;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquotecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The block quote command plugin.\n *\n * @extends module:core/command~Command\n */\nexport default class BlockQuoteCommand extends Command {\n\t/**\n\t * Whether the selection starts in a block quote.\n\t *\n\t * @observable\n\t * @readonly\n\t * @member {Boolean} #value\n\t */\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #value is on}, all top-most block quotes within\n\t * the selection will be removed. If it is off, all selected blocks will be wrapped with\n\t * a block quote.\n\t *\n\t * @fires execute\n\t * @param {Object} [options] Command options.\n\t * @param {Boolean} [options.forceValue] If set, it will force the command behavior. If `true`, the command will apply a block quote,\n\t * otherwise the command will remove the block quote. If not set, the command will act basing on its current value.\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tconst blocks = Array.from( selection.getSelectedBlocks() );\n\n\t\tconst value = ( options.forceValue === undefined ) ? !this.value : options.forceValue;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( !value ) {\n\t\t\t\tthis._removeQuote( writer, blocks.filter( findQuote ) );\n\t\t\t} else {\n\t\t\t\tconst blocksToQuote = blocks.filter( block => {\n\t\t\t\t\t// Already quoted blocks needs to be considered while quoting too\n\t\t\t\t\t// in order to reuse their <bQ> elements.\n\t\t\t\t\treturn findQuote( block ) || checkCanBeQuoted( schema, block );\n\t\t\t\t} );\n\n\t\t\t\tthis._applyQuote( writer, blocksToQuote );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @private\n\t * @returns {Boolean} The current value.\n\t */\n\t_getValue() {\n\t\tconst selection = this.editor.model.document.selection;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\t// In the current implementation, the block quote must be an immediate parent of a block element.\n\t\treturn !!( firstBlock && findQuote( firstBlock ) );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\t_checkEnabled() {\n\t\tif ( this.value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\tif ( !firstBlock ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn checkCanBeQuoted( schema, firstBlock );\n\t}\n\n\t/**\n\t * Removes the quote from given blocks.\n\t *\n\t * If blocks which are supposed to be \"unquoted\" are in the middle of a quote,\n\t * start it or end it, then the quote will be split (if needed) and the blocks\n\t * will be moved out of it, so other quoted blocks remained quoted.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t * @param {Array.<module:engine/model/element~Element>} blocks\n\t */\n\t_removeQuote( writer, blocks ) {\n\t\t// Unquote all groups of block. Iterate in the reverse order to not break following ranges.\n\t\tgetRangesOfBlockGroups( writer, blocks ).reverse().forEach( groupRange => {\n\t\t\tif ( groupRange.start.isAtStart && groupRange.end.isAtEnd ) {\n\t\t\t\twriter.unwrap( groupRange.start.parent );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// The group of blocks are at the beginning of an <bQ> so let's move them left (out of the <bQ>).\n\t\t\tif ( groupRange.start.isAtStart ) {\n\t\t\t\tconst positionBefore = writer.createPositionBefore( groupRange.start.parent );\n\n\t\t\t\twriter.move( groupRange, positionBefore );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// The blocks are in the middle of an <bQ> so we need to split the <bQ> after the last block\n\t\t\t// so we move the items there.\n\t\t\tif ( !groupRange.end.isAtEnd ) {\n\t\t\t\twriter.split( groupRange.end );\n\t\t\t}\n\n\t\t\t// Now we are sure that groupRange.end.isAtEnd is true, so let's move the blocks right.\n\n\t\t\tconst positionAfter = writer.createPositionAfter( groupRange.end.parent );\n\n\t\t\twriter.move( groupRange, positionAfter );\n\t\t} );\n\t}\n\n\t/**\n\t * Applies the quote to given blocks.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t * @param {Array.<module:engine/model/element~Element>} blocks\n\t */\n\t_applyQuote( writer, blocks ) {\n\t\tconst quotesToMerge = [];\n\n\t\t// Quote all groups of block. Iterate in the reverse order to not break following ranges.\n\t\tgetRangesOfBlockGroups( writer, blocks ).reverse().forEach( groupRange => {\n\t\t\tlet quote = findQuote( groupRange.start );\n\n\t\t\tif ( !quote ) {\n\t\t\t\tquote = writer.createElement( 'blockQuote' );\n\n\t\t\t\twriter.wrap( groupRange, quote );\n\t\t\t}\n\n\t\t\tquotesToMerge.push( quote );\n\t\t} );\n\n\t\t// Merge subsequent <bQ> elements. Reverse the order again because this time we want to go through\n\t\t// the <bQ> elements in the source order (due to how merge works – it moves the right element's content\n\t\t// to the first element and removes the right one. Since we may need to merge a couple of subsequent `<bQ>` elements\n\t\t// we want to keep the reference to the first (furthest left) one.\n\t\tquotesToMerge.reverse().reduce( ( currentQuote, nextQuote ) => {\n\t\t\tif ( currentQuote.nextSibling == nextQuote ) {\n\t\t\t\twriter.merge( writer.createPositionAfter( currentQuote ) );\n\n\t\t\t\treturn currentQuote;\n\t\t\t}\n\n\t\t\treturn nextQuote;\n\t\t} );\n\t}\n}\n\nfunction findQuote( elementOrPosition ) {\n\treturn elementOrPosition.parent.name == 'blockQuote' ? elementOrPosition.parent : null;\n}\n\n// Returns a minimal array of ranges containing groups of subsequent blocks.\n//\n// content:         abcdefgh\n// blocks:          [ a, b, d, f, g, h ]\n// output ranges:   [ab]c[d]e[fgh]\n//\n// @param {Array.<module:engine/model/element~Element>} blocks\n// @returns {Array.<module:engine/model/range~Range>}\nfunction getRangesOfBlockGroups( writer, blocks ) {\n\tlet startPosition;\n\tlet i = 0;\n\tconst ranges = [];\n\n\twhile ( i < blocks.length ) {\n\t\tconst block = blocks[ i ];\n\t\tconst nextBlock = blocks[ i + 1 ];\n\n\t\tif ( !startPosition ) {\n\t\t\tstartPosition = writer.createPositionBefore( block );\n\t\t}\n\n\t\tif ( !nextBlock || block.nextSibling != nextBlock ) {\n\t\t\tranges.push( writer.createRange( startPosition, writer.createPositionAfter( block ) ) );\n\t\t\tstartPosition = null;\n\t\t}\n\n\t\ti++;\n\t}\n\n\treturn ranges;\n}\n\n// Checks whether <bQ> can wrap the block.\nfunction checkCanBeQuoted( schema, block ) {\n\t// TMP will be replaced with schema.checkWrap().\n\tconst isBQAllowed = schema.checkChild( block.parent, 'blockQuote' );\n\tconst isBlockAllowedInBQ = schema.checkChild( [ '$root', 'blockQuote' ], block );\n\n\treturn isBQAllowed && isBlockAllowedInBQ;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquoteediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Enter } from 'ckeditor5/src/enter';\nimport { Delete } from 'ckeditor5/src/typing';\n\nimport BlockQuoteCommand from './blockquotecommand';\n\n/**\n * The block quote editing.\n *\n * Introduces the `'blockQuote'` command and the `'blockQuote'` model element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BlockQuoteEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'BlockQuoteEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ Enter, Delete ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\teditor.commands.add( 'blockQuote', new BlockQuoteCommand( editor ) );\n\n\t\tschema.register( 'blockQuote', {\n\t\t\tinheritAllFrom: '$container'\n\t\t} );\n\n\t\teditor.conversion.elementToElement( { model: 'blockQuote', view: 'blockquote' } );\n\n\t\t// Postfixer which cleans incorrect model states connected with block quotes.\n\t\teditor.model.document.registerPostFixer( writer => {\n\t\t\tconst changes = editor.model.document.differ.getChanges();\n\n\t\t\tfor ( const entry of changes ) {\n\t\t\t\tif ( entry.type == 'insert' ) {\n\t\t\t\t\tconst element = entry.position.nodeAfter;\n\n\t\t\t\t\tif ( !element ) {\n\t\t\t\t\t\t// We are inside a text node.\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( element.is( 'element', 'blockQuote' ) && element.isEmpty ) {\n\t\t\t\t\t\t// Added an empty blockQuote - remove it.\n\t\t\t\t\t\twriter.remove( element );\n\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t} else if ( element.is( 'element', 'blockQuote' ) && !schema.checkChild( entry.position, element ) ) {\n\t\t\t\t\t\t// Added a blockQuote in incorrect place. Unwrap it so the content inside is not lost.\n\t\t\t\t\t\twriter.unwrap( element );\n\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t} else if ( element.is( 'element' ) ) {\n\t\t\t\t\t\t// Just added an element. Check that all children meet the scheme rules.\n\t\t\t\t\t\tconst range = writer.createRangeIn( element );\n\n\t\t\t\t\t\tfor ( const child of range.getItems() ) {\n\t\t\t\t\t\t\tif (\n\t\t\t\t\t\t\t\tchild.is( 'element', 'blockQuote' ) &&\n\t\t\t\t\t\t\t\t!schema.checkChild( writer.createPositionBefore( child ), child )\n\t\t\t\t\t\t\t) {\n\t\t\t\t\t\t\t\twriter.unwrap( child );\n\n\t\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t} else if ( entry.type == 'remove' ) {\n\t\t\t\t\tconst parent = entry.position.parent;\n\n\t\t\t\t\tif ( parent.is( 'element', 'blockQuote' ) && parent.isEmpty ) {\n\t\t\t\t\t\t// Something got removed and now blockQuote is empty. Remove the blockQuote as well.\n\t\t\t\t\t\twriter.remove( parent );\n\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn false;\n\t\t} );\n\n\t\tconst viewDocument = this.editor.editing.view.document;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst blockQuoteCommand = editor.commands.get( 'blockQuote' );\n\n\t\t// Overwrite default Enter key behavior.\n\t\t// If Enter key is pressed with selection collapsed in empty block inside a quote, break the quote.\n\t\tthis.listenTo( viewDocument, 'enter', ( evt, data ) => {\n\t\t\tif ( !selection.isCollapsed || !blockQuoteCommand.value ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst positionParent = selection.getLastPosition().parent;\n\n\t\t\tif ( positionParent.isEmpty ) {\n\t\t\t\teditor.execute( 'blockQuote' );\n\t\t\t\teditor.editing.view.scrollToTheSelection();\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'blockquote' } );\n\n\t\t// Overwrite default Backspace key behavior.\n\t\t// If Backspace key is pressed with selection collapsed in first empty block inside a quote, break the quote.\n\t\tthis.listenTo( viewDocument, 'delete', ( evt, data ) => {\n\t\t\tif ( data.direction != 'backward' || !selection.isCollapsed || !blockQuoteCommand.value ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst positionParent = selection.getLastPosition().parent;\n\n\t\t\tif ( positionParent.isEmpty && !positionParent.previousSibling ) {\n\t\t\t\teditor.execute( 'blockQuote' );\n\t\t\t\teditor.editing.view.scrollToTheSelection();\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'blockquote' } );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./blockquote.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquoteui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport '../theme/blockquote.css';\n\n/**\n * The block quote UI plugin.\n *\n * It introduces the `'blockQuote'` button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BlockQuoteUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'BlockQuoteUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'blockQuote', locale => {\n\t\t\tconst command = editor.commands.get( 'blockQuote' );\n\t\t\tconst buttonView = new ButtonView( locale );\n\n\t\t\tbuttonView.set( {\n\t\t\t\tlabel: t( 'Block quote' ),\n\t\t\t\ticon: icons.quote,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\t// Bind button model to command.\n\t\t\tbuttonView.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( buttonView, 'execute', () => {\n\t\t\t\teditor.execute( 'blockQuote' );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn buttonView;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/paragraphcommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport { first } from '@ckeditor/ckeditor5-utils';\n\nimport type { Schema, Selection, DocumentSelection, Element } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The paragraph command.\n *\n * @extends module:core/command~Command\n */\nexport default class ParagraphCommand extends Command {\n\t/**\n\t * The value of the command. Indicates whether the selection start is placed in a paragraph.\n\t *\n\t * @readonly\n\t * @observable\n\t * @member {Boolean} #value\n\t */\n\tdeclare public value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst block = first( document.selection.getSelectedBlocks() );\n\n\t\tthis.value = !!block && block.is( 'element', 'paragraph' );\n\t\tthis.isEnabled = !!block && checkCanBecomeParagraph( block, model.schema );\n\t}\n\n\t/**\n\t * Executes the command. All the blocks (see {@link module:engine/model/schema~Schema}) in the selection\n\t * will be turned to paragraphs.\n\t *\n\t * @fires execute\n\t * @param {Object} [options] Options for the executed command.\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} [options.selection]\n\t * The selection that the command should be applied to.\n\t * By default, if not provided, the command is applied to the {@link module:engine/model/document~Document#selection}.\n\t */\n\tpublic override execute( options: {\n\t\tselection?: Selection | DocumentSelection;\n\t} = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\tmodel.change( writer => {\n\t\t\tconst blocks = ( options.selection || document.selection ).getSelectedBlocks();\n\n\t\t\tfor ( const block of blocks ) {\n\t\t\t\tif ( !block.is( 'element', 'paragraph' ) && checkCanBecomeParagraph( block, model.schema ) ) {\n\t\t\t\t\twriter.rename( block, 'paragraph' );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n\n// Checks whether the given block can be replaced by a paragraph.\n//\n// @private\n// @param {module:engine/model/element~Element} block A block to be tested.\n// @param {module:engine/model/schema~Schema} schema The schema of the document.\n// @returns {Boolean}\nfunction checkCanBecomeParagraph( block: Element, schema: Schema ) {\n\treturn schema.checkChild( block.parent as Element, 'paragraph' ) && !schema.isObject( block );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/insertparagraphcommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport type { Element, Position } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The insert paragraph command. It inserts a new paragraph at a specific\n * {@link module:engine/model/position~Position document position}.\n *\n *\t\t// Insert a new paragraph before an element in the document.\n *\t\teditor.execute( 'insertParagraph', {\n *\t\t\tposition: editor.model.createPositionBefore( element )\n *\t\t} );\n *\n * If a paragraph is disallowed in the context of the specific position, the command\n * will attempt to split position ancestors to find a place where it is possible\n * to insert a paragraph.\n *\n * **Note**: This command moves the selection to the inserted paragraph.\n *\n * @extends module:core/command~Command\n */\nexport default class InsertParagraphCommand extends Command {\n\t/**\n\t * Executes the command.\n\t *\n\t * @param {Object} options Options for the executed command.\n\t * @param {module:engine/model/position~Position} options.position The model position at which\n\t * the new paragraph will be inserted.\n\t * @param {Object} attributes Attributes keys and values to set on a inserted paragraph\n\t * @fires execute\n\t */\n\tpublic override execute( options: {\n\t\tposition: Position;\n\t\tattributes: Record<string, unknown>;\n\t} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst attributes = options.attributes;\n\n\t\tlet position = options.position;\n\n\t\tmodel.change( writer => {\n\t\t\tconst paragraph = writer.createElement( 'paragraph' );\n\n\t\t\tif ( attributes ) {\n\t\t\t\tmodel.schema.setAllowedAttributes( paragraph, attributes, writer );\n\t\t\t}\n\n\t\t\tif ( !model.schema.checkChild( position.parent as Element, paragraph ) ) {\n\t\t\t\tconst allowedParent = model.schema.findAllowedParent( position, paragraph );\n\n\t\t\t\t// It could be there's no ancestor limit that would allow paragraph.\n\t\t\t\t// In theory, \"paragraph\" could be disallowed even in the \"$root\".\n\t\t\t\tif ( !allowedParent ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tposition = writer.split( position, allowedParent ).position;\n\t\t\t}\n\n\t\t\tmodel.insertContent( paragraph, position );\n\n\t\t\twriter.setSelection( paragraph, 'in' );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/paragraph\n */\n\nimport ParagraphCommand from './paragraphcommand';\nimport InsertParagraphCommand from './insertparagraphcommand';\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\n/**\n * The paragraph feature for the editor.\n *\n * It introduces the `<paragraph>` element in the model which renders as a `<p>` element in the DOM and data.\n *\n * It also brings two editors commands:\n *\n * * The {@link module:paragraph/paragraphcommand~ParagraphCommand `'paragraph'`} command that converts all\n * blocks in the model selection into paragraphs.\n * * The {@link module:paragraph/insertparagraphcommand~InsertParagraphCommand `'insertParagraph'`} command\n * that inserts a new paragraph at a specified location in the model.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Paragraph extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Paragraph' {\n\t\treturn 'Paragraph';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\teditor.commands.add( 'paragraph', new ParagraphCommand( editor ) );\n\t\teditor.commands.add( 'insertParagraph', new InsertParagraphCommand( editor ) );\n\n\t\t// Schema.\n\t\tmodel.schema.register( 'paragraph', { inheritAllFrom: '$block' } );\n\n\t\teditor.conversion.elementToElement( { model: 'paragraph', view: 'p' } );\n\n\t\t// Conversion for paragraph-like elements which has not been converted by any plugin.\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\tif ( !Paragraph.paragraphLikeElements.has( viewElement.name ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\t// Do not auto-paragraph empty elements.\n\t\t\t\tif ( viewElement.isEmpty ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createElement( 'paragraph' );\n\t\t\t},\n\t\t\tview: /.+/,\n\t\t\tconverterPriority: 'low'\n\t\t} );\n\t}\n\n\t/**\n\t * A list of element names which should be treated by the autoparagraphing algorithms as\n\t * paragraph-like. This means that e.g. the following content:\n\t *\n\t *\t\t<h1>Foo</h1>\n\t*\t\t<table>\n\t*\t\t\t<tr>\n\t*\t\t\t\t<td>X</td>\n\t*\t\t\t\t<td>\n\t*\t\t\t\t\t<ul>\n\t*\t\t\t\t\t\t<li>Y</li>\n\t*\t\t\t\t\t\t<li>Z</li>\n\t*\t\t\t\t\t</ul>\n\t*\t\t\t\t</td>\n\t*\t\t\t</tr>\n\t*\t\t</table>\n\t*\n\t* contains five paragraph-like elements: `<h1>`, two `<td>`s and two `<li>`s.\n\t* Hence, if none of the features is going to convert those elements the above content will be automatically handled\n\t* by the paragraph feature and converted to:\n\t*\n\t*\t\t<p>Foo</p>\n\t*\t\t<p>X</p>\n\t*\t\t<p>Y</p>\n\t*\t\t<p>Z</p>\n\t*\n\t* Note: The `<td>` containing two `<li>` elements was ignored as the innermost paragraph-like elements\n\t* have a priority upon conversion.\n\t*\n\t* @member {Set.<String>} module:paragraph/paragraph~Paragraph.paragraphLikeElements\n\t*/\n\tpublic static paragraphLikeElements = new Set( [\n\t\t'blockquote',\n\t\t'dd',\n\t\t'div',\n\t\t'dt',\n\t\t'h1',\n\t\t'h2',\n\t\t'h3',\n\t\t'h4',\n\t\t'h5',\n\t\t'h6',\n\t\t'li',\n\t\t'p',\n\t\t'td',\n\t\t'th'\n\t] );\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface CommandsMap {\n\t\tparagraph: ParagraphCommand;\n\t\tinsertParagraph: InsertParagraphCommand;\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ Paragraph.pluginName ]: Paragraph;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/paragraphbuttonui\n */\n\nimport { Plugin, icons } from '@ckeditor/ckeditor5-core';\nimport { ButtonView } from '@ckeditor/ckeditor5-ui';\n\nimport type ParagraphCommand from './paragraphcommand';\n\nconst icon = icons.paragraph;\n\n/**\n * This plugin defines the `'paragraph'` button. It can be used together with\n * {@link module:heading/headingbuttonsui~HeadingButtonsUI} to replace the standard heading dropdown.\n *\n * This plugin is not loaded automatically by the {@link module:paragraph/paragraph~Paragraph} plugin. It must\n * be added manually.\n *\n *\t\tClassicEditor\n *\t\t\t.create( {\n *\t\t\t\tplugins: [ ..., Heading, Paragraph, HeadingButtonsUI, ParagraphButtonUI ]\n *\t\t\t\ttoolbar: [ 'paragraph', 'heading1', 'heading2', 'heading3' ]\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ParagraphButtonUI extends Plugin {\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'paragraph', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\t\t\tconst command: ParagraphCommand = editor.commands.get( 'paragraph' )!;\n\n\t\t\tview.label = t( 'Paragraph' );\n\t\t\tview.icon = icon;\n\t\t\tview.tooltip = true;\n\t\t\tview.isToggleable = true;\n\t\t\tview.bind( 'isEnabled' ).to( command );\n\t\t\tview.bind( 'isOn' ).to( command, 'value' );\n\n\t\t\tview.on( 'execute', () => {\n\t\t\t\teditor.execute( 'paragraph' );\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The heading command. It is used by the {@link module:heading/heading~Heading heading feature} to apply headings.\n *\n * @extends module:core/command~Command\n */\nexport default class HeadingCommand extends Command {\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor Editor instance.\n\t * @param {Array.<String>} modelElements Names of the element which this command can apply in the model.\n\t */\n\tconstructor( editor, modelElements ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * If the selection starts in a heading (which {@link #modelElements is supported by this command})\n\t\t * the value is set to the name of that heading model element.\n\t\t * It is  set to `false` otherwise.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean|String} #value\n\t\t */\n\n\t\t/**\n\t\t * Set of defined model's elements names that this command support.\n\t\t * See {@link module:heading/heading~HeadingOption}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Array.<String>}\n\t\t */\n\t\tthis.modelElements = modelElements;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst block = first( this.editor.model.document.selection.getSelectedBlocks() );\n\n\t\tthis.value = !!block && this.modelElements.includes( block.name ) && block.name;\n\t\tthis.isEnabled = !!block && this.modelElements.some( heading => checkCanBecomeHeading( block, heading, this.editor.model.schema ) );\n\t}\n\n\t/**\n\t * Executes the command. Applies the heading to the selected blocks or, if the first selected\n\t * block is a heading already, turns selected headings (of this level only) to paragraphs.\n\t *\n\t * @param {Object} options\n\t * @param {String} options.value Name of the element which this command will apply in the model.\n\t * @fires execute\n\t */\n\texecute( options ) {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\tconst modelElement = options.value;\n\n\t\tmodel.change( writer => {\n\t\t\tconst blocks = Array.from( document.selection.getSelectedBlocks() )\n\t\t\t\t.filter( block => {\n\t\t\t\t\treturn checkCanBecomeHeading( block, modelElement, model.schema );\n\t\t\t\t} );\n\n\t\t\tfor ( const block of blocks ) {\n\t\t\t\tif ( !block.is( 'element', modelElement ) ) {\n\t\t\t\t\twriter.rename( block, modelElement );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n\n// Checks whether the given block can be replaced by a specific heading.\n//\n// @private\n// @param {module:engine/model/element~Element} block A block to be tested.\n// @param {module:heading/headingcommand~HeadingCommand#modelElement} heading Command element name in the model.\n// @param {module:engine/model/schema~Schema} schema The schema of the document.\n// @returns {Boolean}\nfunction checkCanBecomeHeading( block, heading, schema ) {\n\treturn schema.checkChild( block.parent, heading ) && !schema.isObject( block );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Paragraph } from 'ckeditor5/src/paragraph';\nimport { priorities } from 'ckeditor5/src/utils';\n\nimport HeadingCommand from './headingcommand';\n\nconst defaultModelElement = 'paragraph';\n\n/**\n * The headings engine feature. It handles switching between block formats &ndash; headings and paragraph.\n * This class represents the engine part of the heading feature. See also {@link module:heading/heading~Heading}.\n * It introduces `heading1`-`headingN` commands which allow to convert paragraphs into headings.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class HeadingEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'HeadingEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'heading', {\n\t\t\toptions: [\n\t\t\t\t{ model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },\n\t\t\t\t{ model: 'heading1', view: 'h2', title: 'Heading 1', class: 'ck-heading_heading1' },\n\t\t\t\t{ model: 'heading2', view: 'h3', title: 'Heading 2', class: 'ck-heading_heading2' },\n\t\t\t\t{ model: 'heading3', view: 'h4', title: 'Heading 3', class: 'ck-heading_heading3' }\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ Paragraph ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst options = editor.config.get( 'heading.options' );\n\n\t\tconst modelElements = [];\n\n\t\tfor ( const option of options ) {\n\t\t\t// Skip paragraph - it is defined in required Paragraph feature.\n\t\t\tif ( option.model !== defaultModelElement ) {\n\t\t\t\t// Schema.\n\t\t\t\teditor.model.schema.register( option.model, {\n\t\t\t\t\tinheritAllFrom: '$block'\n\t\t\t\t} );\n\n\t\t\t\teditor.conversion.elementToElement( option );\n\n\t\t\t\tmodelElements.push( option.model );\n\t\t\t}\n\t\t}\n\n\t\tthis._addDefaultH1Conversion( editor );\n\n\t\t// Register the heading command for this option.\n\t\teditor.commands.add( 'heading', new HeadingCommand( editor, modelElements ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\t// If the enter command is added to the editor, alter its behavior.\n\t\t// Enter at the end of a heading element should create a paragraph.\n\t\tconst editor = this.editor;\n\t\tconst enterCommand = editor.commands.get( 'enter' );\n\t\tconst options = editor.config.get( 'heading.options' );\n\n\t\tif ( enterCommand ) {\n\t\t\tthis.listenTo( enterCommand, 'afterExecute', ( evt, data ) => {\n\t\t\t\tconst positionParent = editor.model.document.selection.getFirstPosition().parent;\n\t\t\t\tconst isHeading = options.some( option => positionParent.is( 'element', option.model ) );\n\n\t\t\t\tif ( isHeading && !positionParent.is( 'element', defaultModelElement ) && positionParent.childCount === 0 ) {\n\t\t\t\t\tdata.writer.rename( positionParent, defaultModelElement );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds default conversion for `h1` -> `heading1` with a low priority.\n\t *\n\t * @private\n\t * @param {module:core/editor/editor~Editor} editor Editor instance on which to add the `h1` conversion.\n\t */\n\t_addDefaultH1Conversion( editor ) {\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tmodel: 'heading1',\n\t\t\tview: 'h1',\n\t\t\t// With a `low` priority, `paragraph` plugin autoparagraphing mechanism is executed. Make sure\n\t\t\t// this listener is called before it. If not, `h1` will be transformed into a paragraph.\n\t\t\tconverterPriority: priorities.get( 'low' ) + 1\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/utils\n */\n\n/**\n * Returns heading options as defined in `config.heading.options` but processed to consider\n * the editor localization, i.e. to display {@link module:heading/heading~HeadingOption}\n * in the correct language.\n *\n * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n * when the user configuration is defined because the editor does not exist yet.\n *\n * @param {module:core/editor/editor~Editor} editor\n * @returns {Array.<module:heading/heading~HeadingOption>}.\n */\nexport function getLocalizedOptions( editor ) {\n\tconst t = editor.t;\n\tconst localizedTitles = {\n\t\tParagraph: t( 'Paragraph' ),\n\t\t'Heading 1': t( 'Heading 1' ),\n\t\t'Heading 2': t( 'Heading 2' ),\n\t\t'Heading 3': t( 'Heading 3' ),\n\t\t'Heading 4': t( 'Heading 4' ),\n\t\t'Heading 5': t( 'Heading 5' ),\n\t\t'Heading 6': t( 'Heading 6' )\n\t};\n\n\treturn editor.config.get( 'heading.options' ).map( option => {\n\t\tconst title = localizedTitles[ option.title ];\n\n\t\tif ( title && title != option.title ) {\n\t\t\toption.title = title;\n\t\t}\n\n\t\treturn option;\n\t} );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./heading.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Model, createDropdown, addListToDropdown } from 'ckeditor5/src/ui';\nimport { Collection } from 'ckeditor5/src/utils';\n\nimport { getLocalizedOptions } from './utils';\n\nimport '../theme/heading.css';\n\n/**\n * The headings UI feature. It introduces the `headings` dropdown.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class HeadingUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'HeadingUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst options = getLocalizedOptions( editor );\n\t\tconst defaultTitle = t( 'Choose heading' );\n\t\tconst dropdownTooltip = t( 'Heading' );\n\n\t\t// Register UI component.\n\t\teditor.ui.componentFactory.add( 'heading', locale => {\n\t\t\tconst titles = {};\n\t\t\tconst itemDefinitions = new Collection();\n\n\t\t\tconst headingCommand = editor.commands.get( 'heading' );\n\t\t\tconst paragraphCommand = editor.commands.get( 'paragraph' );\n\n\t\t\tconst commands = [ headingCommand ];\n\n\t\t\tfor ( const option of options ) {\n\t\t\t\tconst def = {\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: new Model( {\n\t\t\t\t\t\tlabel: option.title,\n\t\t\t\t\t\tclass: option.class,\n\t\t\t\t\t\twithText: true\n\t\t\t\t\t} )\n\t\t\t\t};\n\n\t\t\t\tif ( option.model === 'paragraph' ) {\n\t\t\t\t\tdef.model.bind( 'isOn' ).to( paragraphCommand, 'value' );\n\t\t\t\t\tdef.model.set( 'commandName', 'paragraph' );\n\t\t\t\t\tcommands.push( paragraphCommand );\n\t\t\t\t} else {\n\t\t\t\t\tdef.model.bind( 'isOn' ).to( headingCommand, 'value', value => value === option.model );\n\t\t\t\t\tdef.model.set( {\n\t\t\t\t\t\tcommandName: 'heading',\n\t\t\t\t\t\tcommandValue: option.model\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\t// Add the option to the collection.\n\t\t\t\titemDefinitions.add( def );\n\n\t\t\t\ttitles[ option.model ] = option.title;\n\t\t\t}\n\n\t\t\tconst dropdownView = createDropdown( locale );\n\t\t\taddListToDropdown( dropdownView, itemDefinitions );\n\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tisOn: false,\n\t\t\t\twithText: true,\n\t\t\t\ttooltip: dropdownTooltip\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck-heading-dropdown'\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => {\n\t\t\t\treturn areEnabled.some( isEnabled => isEnabled );\n\t\t\t} );\n\n\t\t\tdropdownView.buttonView.bind( 'label' ).to( headingCommand, 'value', paragraphCommand, 'value', ( value, para ) => {\n\t\t\t\tconst whichModel = value || para && 'paragraph';\n\t\t\t\t// If none of the commands is active, display default title.\n\t\t\t\treturn titles[ whichModel ] ? titles[ whichModel ] : defaultTitle;\n\t\t\t} );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\t\teditor.execute( evt.source.commandName, evt.source.commandValue ? { value: evt.source.commandValue } : undefined );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/highlightstack\n */\n\nimport { EmitterMixin, type ArrayOrItem } from '@ckeditor/ckeditor5-utils';\n\nimport type { DowncastWriter, HighlightDescriptor } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Class used to handle the correct order of highlights on elements.\n *\n * When different highlights are applied to same element the correct order should be preserved:\n *\n * * highlight with highest priority should be applied,\n * * if two highlights have same priority - sort by CSS class provided in\n * {@link module:engine/conversion/downcasthelpers~HighlightDescriptor}.\n *\n * This way, highlight will be applied with the same rules it is applied on texts.\n */\nexport default class HighlightStack extends EmitterMixin() {\n\tprivate readonly _stack: Array<HighlightDescriptor>;\n\n\t/**\n\t * Creates class instance.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\tthis._stack = [];\n\t}\n\n\t/**\n\t * Adds highlight descriptor to the stack.\n\t *\n\t * @fires change:top\n\t * @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} descriptor\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n\t */\n\tpublic add( descriptor: HighlightDescriptor, writer: DowncastWriter ): void {\n\t\tconst stack = this._stack;\n\n\t\t// Save top descriptor and insert new one. If top is changed - fire event.\n\t\tconst oldTop = stack[ 0 ];\n\t\tthis._insertDescriptor( descriptor );\n\t\tconst newTop = stack[ 0 ];\n\n\t\t// When new object is at the top and stores different information.\n\t\tif ( oldTop !== newTop && !compareDescriptors( oldTop, newTop ) ) {\n\t\t\tthis.fire<HighlightStackChangeEvent>( 'change:top', {\n\t\t\t\toldDescriptor: oldTop,\n\t\t\t\tnewDescriptor: newTop,\n\t\t\t\twriter\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Removes highlight descriptor from the stack.\n\t *\n\t * @fires change:top\n\t * @param {String} id Id of the descriptor to remove.\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n\t */\n\tpublic remove( id: string, writer: DowncastWriter ): void {\n\t\tconst stack = this._stack;\n\n\t\tconst oldTop = stack[ 0 ];\n\t\tthis._removeDescriptor( id );\n\t\tconst newTop = stack[ 0 ];\n\n\t\t// When new object is at the top and stores different information.\n\t\tif ( oldTop !== newTop && !compareDescriptors( oldTop, newTop ) ) {\n\t\t\tthis.fire<HighlightStackChangeEvent>( 'change:top', {\n\t\t\t\toldDescriptor: oldTop,\n\t\t\t\tnewDescriptor: newTop,\n\t\t\t\twriter\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Inserts a given descriptor in correct place in the stack. It also takes care about updating information\n\t * when descriptor with same id is already present.\n\t *\n\t * @private\n\t * @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} descriptor\n\t */\n\tprivate _insertDescriptor( descriptor: HighlightDescriptor ) {\n\t\tconst stack = this._stack;\n\t\tconst index = stack.findIndex( item => item.id === descriptor.id );\n\n\t\t// Inserting exact same descriptor - do nothing.\n\t\tif ( compareDescriptors( descriptor, stack[ index ] ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If descriptor with same id but with different information is on the stack - remove it.\n\t\tif ( index > -1 ) {\n\t\t\tstack.splice( index, 1 );\n\t\t}\n\n\t\t// Find correct place to insert descriptor in the stack.\n\t\t// It has different information (for example priority) so it must be re-inserted in correct place.\n\t\tlet i = 0;\n\n\t\twhile ( stack[ i ] && shouldABeBeforeB( stack[ i ], descriptor ) ) {\n\t\t\ti++;\n\t\t}\n\n\t\tstack.splice( i, 0, descriptor );\n\t}\n\n\t/**\n\t * Removes descriptor with given id from the stack.\n\t *\n\t * @private\n\t * @param {String} id Descriptor's id.\n\t */\n\tprivate _removeDescriptor( id: string ) {\n\t\tconst stack = this._stack;\n\t\tconst index = stack.findIndex( item => item.id === id );\n\n\t\t// If descriptor with same id is on the list - remove it.\n\t\tif ( index > -1 ) {\n\t\t\tstack.splice( index, 1 );\n\t\t}\n\t}\n}\n\n// Compares two descriptors by checking their priority and class list.\n//\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} a\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} b\n// @returns {Boolean} Returns true if both descriptors are defined and have same priority and classes.\nfunction compareDescriptors( a: HighlightDescriptor, b: HighlightDescriptor ) {\n\treturn a && b && a.priority == b.priority && classesToString( a.classes ) == classesToString( b.classes );\n}\n\n// Checks whenever first descriptor should be placed in the stack before second one.\n//\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} a\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} b\n// @returns {Boolean}\nfunction shouldABeBeforeB( a: HighlightDescriptor, b: HighlightDescriptor ) {\n\tif ( a.priority! > b.priority! ) {\n\t\treturn true;\n\t} else if ( a.priority! < b.priority! ) {\n\t\treturn false;\n\t}\n\n\t// When priorities are equal and names are different - use classes to compare.\n\treturn classesToString( a.classes ) > classesToString( b.classes );\n}\n\n// Converts CSS classes passed with {@link module:engine/conversion/downcasthelpers~HighlightDescriptor} to\n// sorted string.\n//\n// @param {String|Array<String>} descriptor\n// @returns {String}\nfunction classesToString( classes: ArrayOrItem<string> ) {\n\treturn Array.isArray( classes ) ? classes.sort().join( ',' ) : classes;\n}\n\n/**\n * Fired when top element on {@link module:widget/highlightstack~HighlightStack} has been changed\n *\n * @event change:top\n * @param {Object} data Additional information about the change.\n * @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} [data.newDescriptor] New highlight\n * descriptor. It will be `undefined` when last descriptor is removed from the stack.\n * @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} [data.oldDescriptor] Old highlight\n * descriptor. It will be `undefined` when first descriptor is added to the stack.\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer View writer that can be used to modify element.\n */\nexport type HighlightStackChangeEvent = {\n\tname: 'change' | 'change:top';\n\targs: [ {\n\t\toldDescriptor: HighlightDescriptor;\n\t\tnewDescriptor: HighlightDescriptor;\n\t\twriter: DowncastWriter;\n\t} ];\n};\n","export default \"<svg viewBox=\\\"0 0 16 16\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M4 0v1H1v3H0V.5A.5.5 0 0 1 .5 0H4zm8 0h3.5a.5.5 0 0 1 .5.5V4h-1V1h-3V0zM4 16H.5a.5.5 0 0 1-.5-.5V12h1v3h3v1zm8 0v-1h3v-3h1v3.5a.5.5 0 0 1-.5.5H12z\\\"/><path fill-opacity=\\\".256\\\" d=\\\"M1 1h14v14H1z\\\"/><g class=\\\"ck-icon__selected-indicator\\\"><path d=\\\"M7 0h2v1H7V0zM0 7h1v2H0V7zm15 0h1v2h-1V7zm-8 8h2v1H7v-1z\\\"/><path fill-opacity=\\\".254\\\" d=\\\"M1 1h14v14H1z\\\"/></g></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/utils\n */\n\nimport {\n\tCKEditorError,\n\ttoArray,\n\ttype ObservableChangeEvent,\n\ttype GetCallback\n} from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tfindOptimalInsertionRange as engineFindOptimalInsertionRange,\n\ttype AddHighlightCallback,\n\ttype HighlightDescriptor,\n\ttype RemoveHighlightCallback,\n\ttype MapperViewToModelPositionEvent,\n\ttype DocumentSelection,\n\ttype DowncastWriter,\n\ttype Model,\n\ttype Range,\n\ttype Selection,\n\ttype ViewContainerElement,\n\ttype ViewEditableElement,\n\ttype ViewElement,\n\ttype ViewTypeCheckable\n} from '@ckeditor/ckeditor5-engine';\n\nimport { IconView } from '@ckeditor/ckeditor5-ui';\n\nimport HighlightStack, { type HighlightStackChangeEvent } from './highlightstack';\nimport { getTypeAroundFakeCaretPosition } from './widgettypearound/utils';\n\nimport dragHandleIcon from '../theme/icons/drag-handle.svg';\n\n/**\n * CSS class added to each widget element.\n *\n * @const {String}\n */\nexport const WIDGET_CLASS_NAME = 'ck-widget';\n\n/**\n * CSS class added to currently selected widget element.\n *\n * @const {String}\n */\nexport const WIDGET_SELECTED_CLASS_NAME = 'ck-widget_selected';\n\n/**\n * Returns `true` if given {@link module:engine/view/node~Node} is an {@link module:engine/view/element~Element} and a widget.\n *\n * @param {module:engine/view/node~Node} node\n * @returns {Boolean}\n */\nexport function isWidget( node: ViewTypeCheckable ): boolean {\n\tif ( !node.is( 'element' ) ) {\n\t\treturn false;\n\t}\n\n\treturn !!node.getCustomProperty( 'widget' );\n}\n\n/**\n * Converts the given {@link module:engine/view/element~Element} to a widget in the following way:\n *\n * * sets the `contenteditable` attribute to `\"false\"`,\n * * adds the `ck-widget` CSS class,\n * * adds a custom {@link module:engine/view/element~Element#getFillerOffset `getFillerOffset()`} method returning `null`,\n * * adds a custom property allowing to recognize widget elements by using {@link ~isWidget `isWidget()`},\n * * implements the {@link ~setHighlightHandling view highlight on widgets}.\n *\n * This function needs to be used in conjunction with\n * {@link module:engine/conversion/downcasthelpers~DowncastHelpers downcast conversion helpers}\n * like {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`}.\n * Moreover, typically you will want to use `toWidget()` only for `editingDowncast`, while keeping the `dataDowncast` clean.\n *\n * For example, in order to convert a `<widget>` model element to `<div class=\"widget\">` in the view, you can define\n * such converters:\n *\n *\t\teditor.conversion.for( 'editingDowncast' )\n *\t\t\t.elementToElement( {\n *\t\t\t\tmodel: 'widget',\n *\t\t\t\tview: ( modelItem, { writer } ) => {\n *\t\t\t\t\tconst div = writer.createContainerElement( 'div', { class: 'widget' } );\n *\n *\t\t\t\t\treturn toWidget( div, writer, { label: 'some widget' } );\n *\t\t\t\t}\n *\t\t\t} );\n *\n *\t\teditor.conversion.for( 'dataDowncast' )\n *\t\t\t.elementToElement( {\n *\t\t\t\tmodel: 'widget',\n *\t\t\t\tview: ( modelItem, { writer } ) => {\n *\t\t\t\t\treturn writer.createContainerElement( 'div', { class: 'widget' } );\n *\t\t\t\t}\n *\t\t\t} );\n *\n * See the full source code of the widget (with a nested editable) schema definition and converters in\n * [this sample](https://github.com/ckeditor/ckeditor5-widget/blob/master/tests/manual/widget-with-nestededitable.js).\n *\n * @param {module:engine/view/element~Element} element\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @param {Object} [options={}]\n * @param {String|Function} [options.label] Element's label provided to the {@link ~setLabel} function. It can be passed as\n * a plain string or a function returning a string. It represents the widget for assistive technologies (like screen readers).\n * @param {Boolean} [options.hasSelectionHandle=false] If `true`, the widget will have a selection handle added.\n * @returns {module:engine/view/element~Element} Returns the same element.\n */\nexport function toWidget(\n\telement: ViewElement,\n\twriter: DowncastWriter,\n\toptions: {\n\t\tlabel?: string | ( () => string );\n\t\thasSelectionHandle?: boolean;\n\t} = {}\n): ViewElement {\n\tif ( !element.is( 'containerElement' ) ) {\n\t\t/**\n\t\t * The element passed to `toWidget()` must be a {@link module:engine/view/containerelement~ContainerElement}\n\t\t * instance.\n\t\t *\n\t\t * @error widget-to-widget-wrong-element-type\n\t\t * @param {String} element The view element passed to `toWidget()`.\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'widget-to-widget-wrong-element-type',\n\t\t\tnull,\n\t\t\t{ element }\n\t\t);\n\t}\n\n\twriter.setAttribute( 'contenteditable', 'false', element );\n\n\twriter.addClass( WIDGET_CLASS_NAME, element );\n\twriter.setCustomProperty( 'widget', true, element );\n\telement.getFillerOffset = getFillerOffset;\n\n\twriter.setCustomProperty( 'widgetLabel', [], element );\n\n\tif ( options.label ) {\n\t\tsetLabel( element, options.label );\n\t}\n\n\tif ( options.hasSelectionHandle ) {\n\t\taddSelectionHandle( element, writer );\n\t}\n\n\tsetHighlightHandling( element, writer );\n\n\treturn element;\n}\n\n// Default handler for adding a highlight on a widget.\n// It adds CSS class and attributes basing on the given highlight descriptor.\n//\n// @param {module:engine/view/element~Element} element\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} descriptor\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction addHighlight( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) {\n\tif ( descriptor.classes ) {\n\t\twriter.addClass( toArray( descriptor.classes ), element );\n\t}\n\n\tif ( descriptor.attributes ) {\n\t\tfor ( const key in descriptor.attributes ) {\n\t\t\twriter.setAttribute( key, descriptor.attributes[ key ], element );\n\t\t}\n\t}\n}\n\n// Default handler for removing a highlight from a widget.\n// It removes CSS class and attributes basing on the given highlight descriptor.\n//\n// @param {module:engine/view/element~Element} element\n// @param {module:engine/conversion/downcasthelpers~HighlightDescriptor} descriptor\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction removeHighlight( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) {\n\tif ( descriptor.classes ) {\n\t\twriter.removeClass( toArray( descriptor.classes ), element );\n\t}\n\n\tif ( descriptor.attributes ) {\n\t\tfor ( const key in descriptor.attributes ) {\n\t\t\twriter.removeAttribute( key, element );\n\t\t}\n\t}\n}\n\n/**\n * Sets highlight handling methods. Uses {@link module:widget/highlightstack~HighlightStack} to\n * properly determine which highlight descriptor should be used at given time.\n *\n * @param {module:engine/view/element~Element} element\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @param {Function} [add]\n * @param {Function} [remove]\n */\nexport function setHighlightHandling(\n\telement: ViewElement,\n\twriter: DowncastWriter,\n\tadd: ( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) => void = addHighlight,\n\tremove: ( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) => void = removeHighlight\n): void {\n\tconst stack = new HighlightStack();\n\n\tstack.on<HighlightStackChangeEvent>( 'change:top', ( evt, data ) => {\n\t\tif ( data.oldDescriptor ) {\n\t\t\tremove( element, data.oldDescriptor, data.writer );\n\t\t}\n\n\t\tif ( data.newDescriptor ) {\n\t\t\tadd( element, data.newDescriptor, data.writer );\n\t\t}\n\t} );\n\n\tconst addHighlightCallback: AddHighlightCallback = ( element, descriptor, writer ) => stack.add( descriptor, writer );\n\tconst removeHighlightCallback: RemoveHighlightCallback = ( element, id, writer ) => stack.remove( id, writer );\n\n\twriter.setCustomProperty( 'addHighlight', addHighlightCallback, element );\n\twriter.setCustomProperty( 'removeHighlight', removeHighlightCallback, element );\n}\n\n/**\n * Sets label for given element.\n * It can be passed as a plain string or a function returning a string. Function will be called each time label is retrieved by\n * {@link ~getLabel `getLabel()`}.\n *\n * @param {module:engine/view/element~Element} element\n * @param {string|Function} labelOrCreator\n */\nexport function setLabel( element: ViewElement, labelOrCreator: string | ( () => string ) ): void {\n\tconst widgetLabel = element.getCustomProperty( 'widgetLabel' ) as Array<string | ( () => string )>;\n\n\twidgetLabel.push( labelOrCreator );\n}\n\n/**\n * Returns the label of the provided element.\n *\n * @param {module:engine/view/element~Element} element\n * @returns {String}\n */\nexport function getLabel( element: ViewElement ): string {\n\tconst widgetLabel = element.getCustomProperty( 'widgetLabel' ) as Array<string | ( () => string )>;\n\n\treturn widgetLabel.reduce( ( prev: string, current: string | ( () => string ) ) => {\n\t\tif ( typeof current === 'function' ) {\n\t\t\treturn prev ? prev + '. ' + current() : current();\n\t\t} else {\n\t\t\treturn prev ? prev + '. ' + current : current;\n\t\t}\n\t}, '' );\n}\n\n/**\n * Adds functionality to the provided {@link module:engine/view/editableelement~EditableElement} to act as a widget's editable:\n *\n * * sets the `contenteditable` attribute to `true` when {@link module:engine/view/editableelement~EditableElement#isReadOnly} is `false`,\n * otherwise sets it to `false`,\n * * adds the `ck-editor__editable` and `ck-editor__nested-editable` CSS classes,\n * * adds the `ck-editor__nested-editable_focused` CSS class when the editable is focused and removes it when it is blurred.\n * * implements the {@link ~setHighlightHandling view highlight on widget's editable}.\n *\n * Similarly to {@link ~toWidget `toWidget()`} this function should be used in `editingDowncast` only and it is usually\n * used together with {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`}.\n *\n * For example, in order to convert a `<nested>` model element to `<div class=\"nested\">` in the view, you can define\n * such converters:\n *\n *\t\teditor.conversion.for( 'editingDowncast' )\n *\t\t\t.elementToElement( {\n *\t\t\t\tmodel: 'nested',\n *\t\t\t\tview: ( modelItem, { writer } ) => {\n *\t\t\t\t\tconst div = writer.createEditableElement( 'div', { class: 'nested' } );\n *\n *\t\t\t\t\treturn toWidgetEditable( nested, writer, { label: 'label for editable' } );\n *\t\t\t\t}\n *\t\t\t} );\n *\n *\t\teditor.conversion.for( 'dataDowncast' )\n *\t\t\t.elementToElement( {\n *\t\t\t\tmodel: 'nested',\n *\t\t\t\tview: ( modelItem, { writer } ) => {\n *\t\t\t\t\treturn writer.createContainerElement( 'div', { class: 'nested' } );\n *\t\t\t\t}\n *\t\t\t} );\n *\n * See the full source code of the widget (with nested editable) schema definition and converters in\n * [this sample](https://github.com/ckeditor/ckeditor5-widget/blob/master/tests/manual/widget-with-nestededitable.js).\n *\n * @param {module:engine/view/editableelement~EditableElement} editable\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @param {Object} [options] Additional options.\n * @param {String} [options.label] Editable's label used by assistive technologies (e.g. screen readers).\n * @returns {module:engine/view/editableelement~EditableElement} Returns the same element that was provided in the `editable` parameter\n */\nexport function toWidgetEditable(\n\teditable: ViewEditableElement,\n\twriter: DowncastWriter,\n\toptions: {\n\t\tlabel?: string;\n\t} = {}\n): ViewEditableElement {\n\twriter.addClass( [ 'ck-editor__editable', 'ck-editor__nested-editable' ], editable );\n\n\twriter.setAttribute( 'role', 'textbox', editable );\n\n\tif ( options.label ) {\n\t\twriter.setAttribute( 'aria-label', options.label, editable );\n\t}\n\n\t// Set initial contenteditable value.\n\twriter.setAttribute( 'contenteditable', editable.isReadOnly ? 'false' : 'true', editable );\n\n\t// Bind the contenteditable property to element#isReadOnly.\n\teditable.on<ObservableChangeEvent<boolean>>( 'change:isReadOnly', ( evt, property, is ) => {\n\t\twriter.setAttribute( 'contenteditable', is ? 'false' : 'true', editable );\n\t} );\n\n\teditable.on<ObservableChangeEvent<boolean>>( 'change:isFocused', ( evt, property, is ) => {\n\t\tif ( is ) {\n\t\t\twriter.addClass( 'ck-editor__nested-editable_focused', editable );\n\t\t} else {\n\t\t\twriter.removeClass( 'ck-editor__nested-editable_focused', editable );\n\t\t}\n\t} );\n\n\tsetHighlightHandling( editable, writer );\n\n\treturn editable;\n}\n\n/**\n * Returns a model range which is optimal (in terms of UX) for inserting a widget block.\n *\n * For instance, if a selection is in the middle of a paragraph, the collapsed range before this paragraph\n * will be returned so that it is not split. If the selection is at the end of a paragraph,\n * the collapsed range after this paragraph will be returned.\n *\n * Note: If the selection is placed in an empty block, the range in that block will be returned. If that range\n * is then passed to {@link module:engine/model/model~Model#insertContent}, the block will be fully replaced\n * by the inserted widget block.\n *\n * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n * The selection based on which the insertion position should be calculated.\n * @param {module:engine/model/model~Model} model Model instance.\n * @returns {module:engine/model/range~Range} The optimal range.\n */\nexport function findOptimalInsertionRange(\n\tselection: Selection | DocumentSelection,\n\tmodel: Model\n): Range {\n\tconst selectedElement = selection.getSelectedElement();\n\n\tif ( selectedElement ) {\n\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( selection );\n\n\t\t// If the WidgetTypeAround \"fake caret\" is displayed, use its position for the insertion\n\t\t// to provide the most predictable UX (https://github.com/ckeditor/ckeditor5/issues/7438).\n\t\tif ( typeAroundFakeCaretPosition ) {\n\t\t\treturn model.createRange( model.createPositionAt( selectedElement, typeAroundFakeCaretPosition ) );\n\t\t}\n\t}\n\n\treturn engineFindOptimalInsertionRange( selection, model );\n}\n\n/**\n * A util to be used in order to map view positions to correct model positions when implementing a widget\n * which renders non-empty view element for an empty model element.\n *\n * For example:\n *\n *\t\t// Model:\n *\t\t<placeholder type=\"name\"></placeholder>\n *\n *\t\t// View:\n *\t\t<span class=\"placeholder\">name</span>\n *\n * In such case, view positions inside `<span>` cannot be correct mapped to the model (because the model element is empty).\n * To handle mapping positions inside `<span class=\"placeholder\">` to the model use this util as follows:\n *\n *\t\teditor.editing.mapper.on(\n *\t\t\t'viewToModelPosition',\n *\t\t\tviewToModelPositionOutsideModelElement( model, viewElement => viewElement.hasClass( 'placeholder' ) )\n *\t\t);\n *\n * The callback will try to map the view offset of selection to an expected model position.\n *\n * 1. When the position is at the end (or in the middle) of the inline widget:\n *\n *\t\t// View:\n *\t\t<p>foo <span class=\"placeholder\">name|</span> bar</p>\n *\n *\t\t// Model:\n *\t\t<paragraph>foo <placeholder type=\"name\"></placeholder>| bar</paragraph>\n *\n * 2. When the position is at the beginning of the inline widget:\n *\n *\t\t// View:\n *\t\t<p>foo <span class=\"placeholder\">|name</span> bar</p>\n *\n *\t\t// Model:\n *\t\t<paragraph>foo |<placeholder type=\"name\"></placeholder> bar</paragraph>\n *\n * @param {module:engine/model/model~Model} model Model instance on which the callback operates.\n * @param {Function} viewElementMatcher Function that is passed a view element and should return `true` if the custom mapping\n * should be applied to the given view element.\n * @return {Function}\n */\nexport function viewToModelPositionOutsideModelElement(\n\tmodel: Model,\n\tviewElementMatcher: ( element: ViewElement ) => boolean\n): GetCallback<MapperViewToModelPositionEvent> {\n\treturn ( evt, data ) => {\n\t\tconst { mapper, viewPosition } = data;\n\n\t\tconst viewParent = mapper.findMappedViewAncestor( viewPosition );\n\n\t\tif ( !viewElementMatcher( viewParent ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelParent = mapper.toModelElement( viewParent );\n\n\t\tdata.modelPosition = model.createPositionAt( modelParent!, viewPosition.isAtStart ? 'before' : 'after' );\n\t};\n}\n\n// Default filler offset function applied to all widget elements.\n//\n// @returns {null}\nfunction getFillerOffset() {\n\treturn null;\n}\n\n// Adds a drag handle to the widget.\n//\n// @param {module:engine/view/containerelement~ContainerElement}\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction addSelectionHandle( widgetElement: ViewContainerElement, writer: DowncastWriter ) {\n\tconst selectionHandle = writer.createUIElement( 'div', { class: 'ck ck-widget__selection-handle' }, function( domDocument ) {\n\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t// Use the IconView from the ui library.\n\t\tconst icon = new IconView();\n\t\ticon.set( 'content', dragHandleIcon );\n\n\t\t// Render the icon view right away to append its #element to the selectionHandle DOM element.\n\t\ticon.render();\n\n\t\tdomElement.appendChild( icon.element! );\n\n\t\treturn domElement;\n\t} );\n\n\t// Append the selection handle into the widget wrapper.\n\twriter.insert( writer.createPositionAt( widgetElement, 0 ), selectionHandle );\n\twriter.addClass( [ 'ck-widget_with-selection-handle' ], widgetElement );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgettypearound/utils\n */\n\nimport { isWidget } from '../utils';\n\nimport type {\n\tDocumentSelection,\n\tDomConverter,\n\tElement,\n\tSchema,\n\tSelection,\n\tViewElement\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * The name of the type around model selection attribute responsible for\n * displaying a fake caret next to a selected widget.\n */\nexport const TYPE_AROUND_SELECTION_ATTRIBUTE = 'widget-type-around';\n\n/**\n * Checks if an element is a widget that qualifies to get the widget type around UI.\n *\n * @param {module:engine/view/element~Element} viewElement\n * @param {module:engine/model/element~Element} modelElement\n * @param {module:engine/model/schema~Schema} schema\n * @returns {Boolean}\n */\nexport function isTypeAroundWidget( viewElement: ViewElement | undefined, modelElement: Element, schema: Schema ): boolean {\n\treturn !!viewElement && isWidget( viewElement ) && !schema.isInline( modelElement );\n}\n\n/**\n * For the passed HTML element, this helper finds the closest widget type around button ancestor.\n *\n * @param {HTMLElement} domElement\n * @returns {HTMLElement|null}\n */\nexport function getClosestTypeAroundDomButton( domElement: HTMLElement ): HTMLElement | null {\n\treturn domElement.closest( '.ck-widget__type-around__button' );\n}\n\n/**\n * For the passed widget type around button element, this helper determines at which position\n * the paragraph would be inserted into the content if, for instance, the button was\n * clicked by the user.\n *\n * @param {HTMLElement} domElement\n * @returns {'before'|'after'} The position of the button.\n */\nexport function getTypeAroundButtonPosition( domElement: HTMLElement ): 'before' | 'after' {\n\treturn domElement.classList.contains( 'ck-widget__type-around__button_before' ) ? 'before' : 'after';\n}\n\n/**\n * For the passed HTML element, this helper returns the closest view widget ancestor.\n *\n * @param {HTMLElement} domElement\n * @param {module:engine/view/domconverter~DomConverter} domConverter\n * @returns {module:engine/view/element~Element}\n */\nexport function getClosestWidgetViewElement( domElement: HTMLElement, domConverter: DomConverter ): ViewElement {\n\tconst widgetDomElement = domElement.closest( '.ck-widget' );\n\n\treturn domConverter.mapDomToView( widgetDomElement as any ) as ViewElement;\n}\n\n/**\n * For the passed selection instance, it returns the position of the fake caret displayed next to a widget.\n *\n * **Note**: If the fake caret is not currently displayed, `null` is returned.\n *\n * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n * @returns {'before'|'after'|null} The position of the fake caret or `null` when none is present.\n */\nexport function getTypeAroundFakeCaretPosition( selection: Selection | DocumentSelection ): 'before' | 'after' | null {\n\treturn selection.getAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE ) as any;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./widgettypearound.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* global DOMParser */\n\n/**\n * @module widget/widgettypearound\n */\n\nimport {\n\tPlugin,\n\ttype PluginDependencies,\n\ttype Editor\n} from '@ckeditor/ckeditor5-core';\n\nimport { Template } from '@ckeditor/ckeditor5-ui';\n\nimport {\n\tEnter,\n\ttype ViewDocumentEnterEvent\n} from '@ckeditor/ckeditor5-enter';\n\nimport {\n\tDelete,\n\ttype ViewDocumentDeleteEvent,\n\ttype ViewDocumentInsertTextEvent\n} from '@ckeditor/ckeditor5-typing';\n\nimport {\n\tenv,\n\tisForwardArrowKeyCode,\n\ttype BaseEvent,\n\ttype Emitter,\n\ttype GetCallback,\n\ttype GetCallbackOptions,\n\ttype ObservableChangeEvent,\n\ttype KeystrokeInfo\n} from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tBubblingEventInfo,\n\tDocumentChangeEvent,\n\tDomEventData,\n\tDowncastInsertEvent,\n\tDowncastSelectionEvent,\n\tDowncastWriter,\n\tElement,\n\tSchema,\n\tSelectionChangeRangeEvent,\n\tViewDocumentArrowKeyEvent,\n\tViewDocumentCompositionEvent,\n\tViewDocumentKeyEvent,\n\tViewDocumentMouseEvent,\n\tViewElement,\n\tModelDeleteContentEvent,\n\tModelInsertContentEvent,\n\tModelInsertObjectEvent\n} from '@ckeditor/ckeditor5-engine';\n\nimport {\n\tisTypeAroundWidget,\n\tgetClosestTypeAroundDomButton,\n\tgetTypeAroundButtonPosition,\n\tgetClosestWidgetViewElement,\n\tgetTypeAroundFakeCaretPosition,\n\tTYPE_AROUND_SELECTION_ATTRIBUTE\n} from './utils';\n\nimport { isWidget } from '../utils';\n\nimport returnIcon from '../../theme/icons/return-arrow.svg';\n\nimport '../../theme/widgettypearound.css';\n\nconst POSSIBLE_INSERTION_POSITIONS = [ 'before', 'after' ] as const;\n\n// Do the SVG parsing once and then clone the result <svg> DOM element for each new button.\nconst RETURN_ARROW_ICON_ELEMENT = new DOMParser().parseFromString( returnIcon, 'image/svg+xml' ).firstChild!;\n\nconst PLUGIN_DISABLED_EDITING_ROOT_CLASS = 'ck-widget__type-around_disabled';\n\n/**\n * A plugin that allows users to type around widgets where normally it is impossible to place the caret due\n * to limitations of web browsers. These \"tight spots\" occur, for instance, before (or after) a widget being\n * the first (or last) child of its parent or between two block widgets.\n *\n * This plugin extends the {@link module:widget/widget~Widget `Widget`} plugin and injects the user interface\n * with two buttons into each widget instance in the editor. Each of the buttons can be clicked by the\n * user if the widget is next to the \"tight spot\". Once clicked, a paragraph is created with the selection anchored\n * in it so that users can type (or insert content, paste, etc.) straight away.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class WidgetTypeAround extends Plugin {\n\tprivate _currentFakeCaretModelElement: Element | null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'WidgetTypeAround' {\n\t\treturn 'WidgetTypeAround';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ Enter, Delete ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A reference to the model widget element that has the fake caret active\n\t\t * on either side of it. It is later used to remove CSS classes associated with the fake caret\n\t\t * when the widget no longer needs it.\n\t\t *\n\t\t * @private\n\t\t * @member {module:engine/model/element~Element|null}\n\t\t */\n\t\tthis._currentFakeCaretModelElement = null;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\t// Set a CSS class on the view editing root when the plugin is disabled so all the buttons\n\t\t// and lines visually disappear. All the interactions are disabled in individual plugin methods.\n\t\tthis.on<ObservableChangeEvent<boolean>>( 'change:isEnabled', ( evt, data, isEnabled ) => {\n\t\t\teditingView.change( writer => {\n\t\t\t\tfor ( const root of editingView.document.roots ) {\n\t\t\t\t\tif ( isEnabled ) {\n\t\t\t\t\t\twriter.removeClass( PLUGIN_DISABLED_EDITING_ROOT_CLASS, root );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.addClass( PLUGIN_DISABLED_EDITING_ROOT_CLASS, root );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tif ( !isEnabled ) {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\n\t\tthis._enableTypeAroundUIInjection();\n\t\tthis._enableInsertingParagraphsOnButtonClick();\n\t\tthis._enableInsertingParagraphsOnEnterKeypress();\n\t\tthis._enableInsertingParagraphsOnTypingKeystroke();\n\t\tthis._enableTypeAroundFakeCaretActivationUsingKeyboardArrows();\n\t\tthis._enableDeleteIntegration();\n\t\tthis._enableInsertContentIntegration();\n\t\tthis._enableInsertObjectIntegration();\n\t\tthis._enableDeleteContentIntegration();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._currentFakeCaretModelElement = null;\n\t}\n\n\t/**\n\t * Inserts a new paragraph next to a widget element with the selection anchored in it.\n\t *\n\t * **Note**: This method is heavily user-oriented and will both focus the editing view and scroll\n\t * the viewport to the selection in the inserted paragraph.\n\t *\n\t * @protected\n\t * @param {module:engine/model/element~Element} widgetModelElement The model widget element next to which a paragraph is inserted.\n\t * @param {'before'|'after'} position The position where the paragraph is inserted. Either `'before'` or `'after'` the widget.\n\t */\n\tprivate _insertParagraph( widgetModelElement: Element, position: 'before' | 'after' ) {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\tconst attributesToCopy = editor.model.schema.getAttributesWithProperty( widgetModelElement, 'copyOnReplace', true );\n\n\t\teditor.execute( 'insertParagraph', {\n\t\t\tposition: editor.model.createPositionAt( widgetModelElement, position ),\n\t\t\tattributes: attributesToCopy\n\t\t} );\n\n\t\teditingView.focus();\n\t\teditingView.scrollToTheSelection();\n\t}\n\n\t/**\n\t * A wrapper for the {@link module:utils/emittermixin~EmitterMixin#listenTo} method that executes the callbacks only\n\t * when the plugin {@link #isEnabled is enabled}.\n\t *\n\t * @private\n\t * @param {module:utils/emittermixin~Emitter} emitter The object that fires the event.\n\t * @param {String} event The name of the event.\n\t * @param {Function} callback The function to be called on event.\n\t * @param {Object} [options={}] Additional options.\n\t * @param {module:utils/priorities~PriorityString|Number} [options.priority='normal'] The priority of this event callback. The higher\n\t * the priority value the sooner the callback will be fired. Events having the same priority are called in the\n\t * order they were added.\n\t */\n\tprivate _listenToIfEnabled<TEvent extends BaseEvent>(\n\t\temitter: Emitter,\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: OmitThisParameter<GetCallback<TEvent>>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void {\n\t\tthis.listenTo( emitter, event, ( ...args ) => {\n\t\t\t// Do not respond if the plugin is disabled.\n\t\t\tif ( this.isEnabled ) {\n\t\t\t\tcallback( ...args );\n\t\t\t}\n\t\t}, options );\n\t}\n\n\t/**\n\t * Similar to {@link #_insertParagraph}, this method inserts a paragraph except that it\n\t * does not expect a position. Instead, it performs the insertion next to a selected widget\n\t * according to the `widget-type-around` model selection attribute value (fake caret position).\n\t *\n\t * Because this method requires the `widget-type-around` attribute to be set,\n\t * the insertion can only happen when the widget's fake caret is active (e.g. activated\n\t * using the keyboard).\n\t *\n\t * @private\n\t * @returns {Boolean} Returns `true` when the paragraph was inserted (the attribute was present) and `false` otherwise.\n\t */\n\tprivate _insertParagraphAccordingToFakeCaretPosition() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( modelSelection );\n\n\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( window.logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[WidgetTypeAround]%c Fake caret -> insert paragraph',\n\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tconst selectedModelElement = modelSelection.getSelectedElement()!;\n\n\t\tthis._insertParagraph( selectedModelElement, typeAroundFakeCaretPosition );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Creates a listener in the editing conversion pipeline that injects the widget type around\n\t * UI into every single widget instance created in the editor.\n\t *\n\t * The UI is delivered as a {@link module:engine/view/uielement~UIElement}\n\t * wrapper which renders DOM buttons that users can use to insert paragraphs.\n\t *\n\t * @private\n\t */\n\tprivate _enableTypeAroundUIInjection() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst t = editor.locale.t;\n\t\tconst buttonTitles = {\n\t\t\tbefore: t( 'Insert paragraph before block' ),\n\t\t\tafter: t( 'Insert paragraph after block' )\n\t\t};\n\n\t\teditor.editing.downcastDispatcher.on<DowncastInsertEvent<Element>>( 'insert', ( evt, data, conversionApi ) => {\n\t\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item );\n\n\t\t\tif ( !viewElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out non-widgets and inline widgets.\n\t\t\tif ( isTypeAroundWidget( viewElement, data.item, schema ) ) {\n\t\t\t\tinjectUIIntoWidget( conversionApi.writer, buttonTitles, viewElement! );\n\n\t\t\t\tconst widgetLabel = viewElement.getCustomProperty( 'widgetLabel' ) as Array<string | ( () => string )>;\n\n\t\t\t\twidgetLabel.push( () => {\n\t\t\t\t\treturn this.isEnabled ? t( 'Press Enter to type after or press Shift + Enter to type before the widget' ) : '';\n\t\t\t\t} );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Brings support for the fake caret that appears when either:\n\t *\n\t * * the selection moves to a widget from a position next to it using arrow keys,\n\t * * the arrow key is pressed when the widget is already selected.\n\t *\n\t * The fake caret lets the user know that they can start typing or just press\n\t * <kbd>Enter</kbd> to insert a paragraph at the position next to a widget as suggested by the fake caret.\n\t *\n\t * The fake caret disappears when the user changes the selection or the editor\n\t * gets blurred.\n\t *\n\t * The whole idea is as follows:\n\t *\n\t * 1. A user does one of the 2 scenarios described at the beginning.\n\t * 2. The \"keydown\" listener is executed and the decision is made whether to show or hide the fake caret.\n\t * 3. If it should show up, the `widget-type-around` model selection attribute is set indicating\n\t *    on which side of the widget it should appear.\n\t * 4. The selection dispatcher reacts to the selection attribute and sets CSS classes responsible for the\n\t *    fake caret on the view widget.\n\t * 5. If the fake caret should disappear, the selection attribute is removed and the dispatcher\n\t *    does the CSS class clean-up in the view.\n\t * 6. Additionally, `change:range` and `FocusTracker#isFocused` listeners also remove the selection\n\t *    attribute (the former also removes widget CSS classes).\n\t *\n\t * @private\n\t */\n\tprivate _enableTypeAroundFakeCaretActivationUsingKeyboardArrows() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst schema = model.schema;\n\t\tconst editingView = editor.editing.view;\n\n\t\t// This is the main listener responsible for the fake caret.\n\t\t// Note: The priority must precede the default Widget class keydown handler (\"high\").\n\t\tthis._listenToIfEnabled<ViewDocumentArrowKeyEvent>( editingView.document, 'arrowKey', ( evt, domEventData ) => {\n\t\t\tthis._handleArrowKeyPress( evt, domEventData );\n\t\t}, { context: [ isWidget, '$text' ], priority: 'high' } );\n\n\t\t// This listener makes sure the widget type around selection attribute will be gone from the model\n\t\t// selection as soon as the model range changes. This attribute only makes sense when a widget is selected\n\t\t// (and the \"fake horizontal caret\" is visible) so whenever the range changes (e.g. selection moved somewhere else),\n\t\t// let's get rid of the attribute so that the selection downcast dispatcher isn't even bothered.\n\t\tthis._listenToIfEnabled<SelectionChangeRangeEvent>( modelSelection, 'change:range', ( evt, data ) => {\n\t\t\t// Do not reset the selection attribute when the change was indirect.\n\t\t\tif ( !data.directChange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Get rid of the widget type around attribute of the selection on every change:range.\n\t\t\t// If the range changes, it means for sure, the user is no longer in the active (\"fake horizontal caret\") mode.\n\t\t\teditor.model.change( writer => {\n\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t} );\n\t\t} );\n\n\t\t// Get rid of the widget type around attribute of the selection on every document change\n\t\t// that makes widget not selected any more (i.e. widget was removed).\n\t\tthis._listenToIfEnabled<DocumentChangeEvent>( model.document, 'change:data', () => {\n\t\t\tconst selectedModelElement = modelSelection.getSelectedElement();\n\n\t\t\tif ( selectedModelElement ) {\n\t\t\t\tconst selectedViewElement = editor.editing.mapper.toViewElement( selectedModelElement );\n\n\t\t\t\tif ( isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\teditor.model.change( writer => {\n\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t} );\n\t\t} );\n\n\t\t// React to changes of the model selection attribute made by the arrow keys listener.\n\t\t// If the block widget is selected and the attribute changes, downcast the attribute to special\n\t\t// CSS classes associated with the active (\"fake horizontal caret\") mode of the widget.\n\t\tthis._listenToIfEnabled<DowncastSelectionEvent>( editor.editing.downcastDispatcher, 'selection', ( evt, data, conversionApi ) => {\n\t\t\tconst writer = conversionApi.writer;\n\n\t\t\tif ( this._currentFakeCaretModelElement ) {\n\t\t\t\tconst selectedViewElement = conversionApi.mapper.toViewElement( this._currentFakeCaretModelElement );\n\n\t\t\t\tif ( selectedViewElement ) {\n\t\t\t\t\t// Get rid of CSS classes associated with the active (\"fake horizontal caret\") mode from the view widget.\n\t\t\t\t\twriter.removeClass( POSSIBLE_INSERTION_POSITIONS.map( positionToWidgetCssClass ), selectedViewElement );\n\n\t\t\t\t\tthis._currentFakeCaretModelElement = null;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst selectedModelElement = data.selection.getSelectedElement();\n\n\t\t\tif ( !selectedModelElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedViewElement = conversionApi.mapper.toViewElement( selectedModelElement );\n\n\t\t\tif ( !isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( data.selection );\n\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\twriter.addClass( positionToWidgetCssClass( typeAroundFakeCaretPosition ), selectedViewElement! );\n\n\t\t\t// Remember the view widget that got the \"fake-caret\" CSS class. This class should be removed ASAP when the\n\t\t\t// selection changes\n\t\t\tthis._currentFakeCaretModelElement = selectedModelElement;\n\t\t} );\n\n\t\tthis._listenToIfEnabled<ObservableChangeEvent<boolean>>( editor.ui.focusTracker, 'change:isFocused', ( evt, name, isFocused ) => {\n\t\t\tif ( !isFocused ) {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\n\t\tfunction positionToWidgetCssClass( position: 'before' | 'after' ) {\n\t\t\treturn `ck-widget_type-around_show-fake-caret_${ position }`;\n\t\t}\n\t}\n\n\t/**\n\t * A listener executed on each \"keydown\" in the view document, a part of\n\t * {@link #_enableTypeAroundFakeCaretActivationUsingKeyboardArrows}.\n\t *\n\t * It decides whether the arrow keypress should activate the fake caret or not (also whether it should\n\t * be deactivated).\n\t *\n\t * The fake caret activation is done by setting the `widget-type-around` model selection attribute\n\t * in this listener, and stopping and preventing the event that would normally be handled by the widget\n\t * plugin that is responsible for the regular keyboard navigation near/across all widgets (that\n\t * includes inline widgets, which are ignored by the widget type around plugin).\n\t *\n\t * @private\n\t */\n\tprivate _handleArrowKeyPress( evt: BubblingEventInfo<'arrowKey'>, domEventData: DomEventData & KeystrokeInfo ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst schema = model.schema;\n\t\tconst editingView = editor.editing.view;\n\n\t\tconst keyCode = domEventData.keyCode;\n\t\tconst isForward = isForwardArrowKeyCode( keyCode, editor.locale.contentLanguageDirection );\n\t\tconst selectedViewElement = editingView.document.selection.getSelectedElement()!;\n\t\tconst selectedModelElement = editor.editing.mapper.toModelElement( selectedViewElement )!;\n\t\tlet shouldStopAndPreventDefault;\n\n\t\t// Handle keyboard navigation when a type-around-compatible widget is currently selected.\n\t\tif ( isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\tshouldStopAndPreventDefault = this._handleArrowKeyPressOnSelectedWidget( isForward );\n\t\t}\n\t\t// Handle keyboard arrow navigation when the selection is next to a type-around-compatible widget\n\t\t// and the widget is about to be selected.\n\t\telse if ( modelSelection.isCollapsed ) {\n\t\t\tshouldStopAndPreventDefault = this._handleArrowKeyPressWhenSelectionNextToAWidget( isForward );\n\t\t}\n\t\t// Handle collapsing a non-collapsed selection that is wider than on a single widget.\n\t\telse if ( !domEventData.shiftKey ) {\n\t\t\tshouldStopAndPreventDefault = this._handleArrowKeyPressWhenNonCollapsedSelection( isForward );\n\t\t}\n\n\t\tif ( shouldStopAndPreventDefault ) {\n\t\t\tdomEventData.preventDefault();\n\t\t\tevt.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles the keyboard navigation on \"keydown\" when a widget is currently selected and activates or deactivates\n\t * the fake caret for that widget, depending on the current value of the `widget-type-around` model\n\t * selection attribute and the direction of the pressed arrow key.\n\t *\n\t * @private\n\t * @param {Boolean} isForward `true` when the pressed arrow key was responsible for the forward model selection movement\n\t * as in {@link module:utils/keyboard~isForwardArrowKeyCode}.\n\t * @returns {Boolean} Returns `true` when the keypress was handled and no other keydown listener of the editor should\n\t * process the event any further. Returns `false` otherwise.\n\t */\n\tprivate _handleArrowKeyPressOnSelectedWidget( isForward: boolean ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( modelSelection );\n\n\t\treturn model.change( writer => {\n\t\t\t// If the fake caret is displayed...\n\t\t\tif ( typeAroundFakeCaretPosition ) {\n\t\t\t\tconst isLeavingWidget = typeAroundFakeCaretPosition === ( isForward ? 'after' : 'before' );\n\n\t\t\t\t// If the keyboard arrow works against the value of the selection attribute...\n\t\t\t\t// then remove the selection attribute but prevent default DOM actions\n\t\t\t\t// and do not let the Widget plugin listener move the selection. This brings\n\t\t\t\t// the widget back to the state, for instance, like if was selected using the mouse.\n\t\t\t\t//\n\t\t\t\t// **Note**: If leaving the widget when the fake caret is active, then the default\n\t\t\t\t// Widget handler will change the selection and, in turn, this will automatically discard\n\t\t\t\t// the selection attribute.\n\t\t\t\tif ( !isLeavingWidget ) {\n\t\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t\t// If the fake caret wasn't displayed, let's set it now according to the direction of the arrow\n\t\t\t// key press. This also means we cannot let the Widget plugin listener move the selection.\n\t\t\telse {\n\t\t\t\twriter.setSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE, isForward ? 'after' : 'before' );\n\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\treturn false;\n\t\t} );\n\t}\n\n\t/**\n\t * Handles the keyboard navigation on \"keydown\" when **no** widget is selected but the selection is **directly** next\n\t * to one and upon the fake caret should become active for this widget upon arrow keypress\n\t * (AKA entering/selecting the widget).\n\t *\n\t * **Note**: This code mirrors the implementation from the widget plugin but also adds the selection attribute.\n\t * Unfortunately, there is no safe way to let the widget plugin do the selection part first and then just set the\n\t * selection attribute here in the widget type around plugin. This is why this code must duplicate some from the widget plugin.\n\t *\n\t * @private\n\t * @param {Boolean} isForward `true` when the pressed arrow key was responsible for the forward model selection movement\n\t * as in {@link module:utils/keyboard~isForwardArrowKeyCode}.\n\t * @returns {Boolean} Returns `true` when the keypress was handled and no other keydown listener of the editor should\n\t * process the event any further. Returns `false` otherwise.\n\t */\n\tprivate _handleArrowKeyPressWhenSelectionNextToAWidget( isForward: boolean ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\t\tconst widgetPlugin = editor.plugins.get( 'Widget' );\n\n\t\t// This is the widget the selection is about to be set on.\n\t\tconst modelElementNextToSelection = widgetPlugin._getObjectElementNextToSelection( isForward )!;\n\t\tconst viewElementNextToSelection = editor.editing.mapper.toViewElement( modelElementNextToSelection );\n\n\t\tif ( isTypeAroundWidget( viewElementNextToSelection, modelElementNextToSelection, schema ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twidgetPlugin._setSelectionOverElement( modelElementNextToSelection );\n\t\t\t\twriter.setSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE, isForward ? 'before' : 'after' );\n\t\t\t} );\n\n\t\t\t// The change() block above does the same job as the Widget plugin. The event can\n\t\t\t// be safely canceled.\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Handles the keyboard navigation on \"keydown\" when a widget is currently selected (together with some other content)\n\t * and the widget is the first or last element in the selection. It activates or deactivates the fake caret for that widget.\n\t *\n\t * @private\n\t * @param {Boolean} isForward `true` when the pressed arrow key was responsible for the forward model selection movement\n\t * as in {@link module:utils/keyboard~isForwardArrowKeyCode}.\n\t * @returns {Boolean} Returns `true` when the keypress was handled and no other keydown listener of the editor should\n\t * process the event any further. Returns `false` otherwise.\n\t */\n\tprivate _handleArrowKeyPressWhenNonCollapsedSelection( isForward: boolean ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\t\tconst mapper = editor.editing.mapper;\n\t\tconst modelSelection = model.document.selection;\n\n\t\tconst selectedModelNode = isForward ?\n\t\t\tmodelSelection.getLastPosition()!.nodeBefore :\n\t\t\tmodelSelection.getFirstPosition()!.nodeAfter;\n\n\t\tconst selectedViewNode = mapper.toViewElement( selectedModelNode as any );\n\n\t\t// There is a widget at the collapse position so collapse the selection to the fake caret on it.\n\t\tif ( isTypeAroundWidget( selectedViewNode, selectedModelNode as any, schema ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( selectedModelNode, 'on' );\n\t\t\t\twriter.setSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE, isForward ? 'after' : 'before' );\n\t\t\t} );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Registers a `mousedown` listener for the view document which intercepts events\n\t * coming from the widget type around UI, which happens when a user clicks one of the buttons\n\t * that insert a paragraph next to a widget.\n\t *\n\t * @private\n\t */\n\tprivate _enableInsertingParagraphsOnButtonClick() {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\tthis._listenToIfEnabled<ViewDocumentMouseEvent>( editingView.document, 'mousedown', ( evt, domEventData ) => {\n\t\t\tconst button = getClosestTypeAroundDomButton( domEventData.domTarget );\n\n\t\t\tif ( !button ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst buttonPosition = getTypeAroundButtonPosition( button );\n\t\t\tconst widgetViewElement = getClosestWidgetViewElement( button, editingView.domConverter );\n\t\t\tconst widgetModelElement = editor.editing.mapper.toModelElement( widgetViewElement );\n\n\t\t\tthis._insertParagraph( widgetModelElement!, buttonPosition );\n\n\t\t\tdomEventData.preventDefault();\n\t\t\tevt.stop();\n\t\t} );\n\t}\n\n\t/**\n\t * Creates the <kbd>Enter</kbd> key listener on the view document that allows the user to insert a paragraph\n\t * near the widget when either:\n\t *\n\t * * The fake caret was first activated using the arrow keys,\n\t * * The entire widget is selected in the model.\n\t *\n\t * In the first case, the new paragraph is inserted according to the `widget-type-around` selection\n\t * attribute (see {@link #_handleArrowKeyPress}).\n\t *\n\t * In the second case, the new paragraph is inserted based on whether a soft (<kbd>Shift</kbd>+<kbd>Enter</kbd>) keystroke\n\t * was pressed or not.\n\t *\n\t * @private\n\t */\n\tprivate _enableInsertingParagraphsOnEnterKeypress() {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst editingView = editor.editing.view;\n\n\t\tthis._listenToIfEnabled<ViewDocumentEnterEvent>( editingView.document, 'enter', ( evt, domEventData ) => {\n\t\t\t// This event could be triggered from inside the widget but we are interested\n\t\t\t// only when the widget is selected itself.\n\t\t\tif ( evt.eventPhase != 'atTarget' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedModelElement = selection.getSelectedElement()!;\n\t\t\tconst selectedViewElement = editor.editing.mapper.toViewElement( selectedModelElement );\n\n\t\t\tconst schema = editor.model.schema;\n\t\t\tlet wasHandled;\n\n\t\t\t// First check if the widget is selected and there's a type around selection attribute associated\n\t\t\t// with the fake caret that would tell where to insert a new paragraph.\n\t\t\tif ( this._insertParagraphAccordingToFakeCaretPosition() ) {\n\t\t\t\twasHandled = true;\n\t\t\t}\n\t\t\t// Then, if there is no selection attribute associated with the fake caret, check if the widget\n\t\t\t// simply is selected and create a new paragraph according to the keystroke (Shift+)Enter.\n\t\t\telse if ( isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\t\tthis._insertParagraph( selectedModelElement, domEventData.isSoft ? 'before' : 'after' );\n\n\t\t\t\twasHandled = true;\n\t\t\t}\n\n\t\t\tif ( wasHandled ) {\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: isWidget } );\n\t}\n\n\t/**\n\t * Similar to the {@link #_enableInsertingParagraphsOnEnterKeypress}, it allows the user\n\t * to insert a paragraph next to a widget when the fake caret was activated using arrow\n\t * keys but it responds to typing instead of <kbd>Enter</kbd>.\n\t *\n\t * Listener enabled by this method will insert a new paragraph according to the `widget-type-around`\n\t * model selection attribute as the user simply starts typing, which creates the impression that the fake caret\n\t * behaves like a real one rendered by the browser (AKA your text appears where the caret was).\n\t *\n\t * **Note**: At the moment this listener creates 2 undo steps: one for the `insertParagraph` command\n\t * and another one for actual typing. It is not a disaster but this may need to be fixed\n\t * sooner or later.\n\t *\n\t * @private\n\t */\n\tprivate _enableInsertingParagraphsOnTypingKeystroke() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\t// Note: The priority must precede the default Input plugin insertText handler.\n\t\tthis._listenToIfEnabled<ViewDocumentInsertTextEvent>( viewDocument, 'insertText', ( evt, data ) => {\n\t\t\tif ( this._insertParagraphAccordingToFakeCaretPosition() ) {\n\t\t\t\t// The view selection in the event data contains the widget. If the new paragraph\n\t\t\t\t// was inserted, modify the view selection passed along with the insertText event\n\t\t\t\t// so the default event handler in the Input plugin starts typing inside the paragraph.\n\t\t\t\t// Otherwise, the typing would be over the widget.\n\t\t\t\tdata.selection = viewDocument.selection;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\tif ( env.isAndroid ) {\n\t\t\t// On Android with English keyboard, the composition starts just by putting caret\n\t\t\t// at the word end or by selecting a table column. This is not a real composition started.\n\t\t\t// Trigger delete content on first composition key pressed.\n\t\t\tthis._listenToIfEnabled<ViewDocumentKeyEvent>( viewDocument, 'keydown', ( evt, data ) => {\n\t\t\t\tif ( data.keyCode == 229 ) {\n\t\t\t\t\tthis._insertParagraphAccordingToFakeCaretPosition();\n\t\t\t\t}\n\t\t\t} );\n\t\t} else {\n\t\t\t// Note: The priority must precede the default Input plugin compositionstart handler (to call it before delete content).\n\t\t\tthis._listenToIfEnabled<ViewDocumentCompositionEvent>( viewDocument, 'compositionstart', () => {\n\t\t\t\tthis._insertParagraphAccordingToFakeCaretPosition();\n\t\t\t}, { priority: 'high' } );\n\t\t}\n\t}\n\n\t/**\n\t * It creates a \"delete\" event listener on the view document to handle cases when the <kbd>Delete</kbd> or <kbd>Backspace</kbd>\n\t * is pressed and the fake caret is currently active.\n\t *\n\t * The fake caret should create an illusion of a real browser caret so that when it appears before or after\n\t * a widget, pressing <kbd>Delete</kbd> or <kbd>Backspace</kbd> should remove a widget or delete the content\n\t * before or after a widget (depending on the content surrounding the widget).\n\t *\n\t * @private\n\t */\n\tprivate _enableDeleteIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\n\t\tthis._listenToIfEnabled<ViewDocumentDeleteEvent>( editingView.document, 'delete', ( evt, domEventData ) => {\n\t\t\t// This event could be triggered from inside the widget but we are interested\n\t\t\t// only when the widget is selected itself.\n\t\t\tif ( evt.eventPhase != 'atTarget' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( model.document.selection );\n\n\t\t\t// This listener handles only these cases when the fake caret is active.\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst direction = domEventData.direction;\n\t\t\tconst selectedModelWidget = model.document.selection.getSelectedElement();\n\n\t\t\tconst isFakeCaretBefore = typeAroundFakeCaretPosition === 'before';\n\t\t\tconst isDeleteForward = direction == 'forward';\n\t\t\tconst shouldDeleteEntireWidget = isFakeCaretBefore === isDeleteForward;\n\n\t\t\tif ( shouldDeleteEntireWidget ) {\n\t\t\t\teditor.execute( 'delete', {\n\t\t\t\t\tselection: model.createSelection( selectedModelWidget, 'on' )\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tconst range = schema.getNearestSelectionRange(\n\t\t\t\t\tmodel.createPositionAt( selectedModelWidget!, typeAroundFakeCaretPosition ),\n\t\t\t\t\tdirection\n\t\t\t\t);\n\n\t\t\t\t// If there is somewhere to move selection to, then there will be something to delete.\n\t\t\t\tif ( range ) {\n\t\t\t\t\t// If the range is NOT collapsed, then we know that the range contains an object (see getNearestSelectionRange() docs).\n\t\t\t\t\tif ( !range.isCollapsed ) {\n\t\t\t\t\t\tmodel.change( writer => {\n\t\t\t\t\t\t\twriter.setSelection( range );\n\t\t\t\t\t\t\teditor.execute( isDeleteForward ? 'deleteForward' : 'delete' );\n\t\t\t\t\t\t} );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tconst probe = model.createSelection( range.start );\n\t\t\t\t\t\tmodel.modifySelection( probe, { direction } );\n\n\t\t\t\t\t\t// If the range is collapsed, let's see if a non-collapsed range exists that can could be deleted.\n\t\t\t\t\t\t// If such range exists, use the editor command because it it safe for collaboration (it merges where it can).\n\t\t\t\t\t\tif ( !probe.focus!.isEqual( range.start ) ) {\n\t\t\t\t\t\t\tmodel.change( writer => {\n\t\t\t\t\t\t\t\twriter.setSelection( range );\n\t\t\t\t\t\t\t\teditor.execute( isDeleteForward ? 'deleteForward' : 'delete' );\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t}\n\t\t\t\t\t\t// If there is no non-collapsed range to be deleted then we are sure that there is an empty element\n\t\t\t\t\t\t// next to a widget that should be removed. \"delete\" and \"deleteForward\" commands cannot get rid of it\n\t\t\t\t\t\t// so calling Model#deleteContent here manually.\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tconst deepestEmptyRangeAncestor = getDeepestEmptyElementAncestor( schema, range.start.parent as Element );\n\n\t\t\t\t\t\t\tmodel.deleteContent( model.createSelection( deepestEmptyRangeAncestor, 'on' ), {\n\t\t\t\t\t\t\t\tdoNotAutoparagraph: true\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If some content was deleted, don't let the handler from the Widget plugin kick in.\n\t\t\t// If nothing was deleted, then the default handler will have nothing to do anyway.\n\t\t\tdomEventData.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: isWidget } );\n\t}\n\n\t/**\n\t * Attaches the {@link module:engine/model/model~Model#event:insertContent} event listener that, for instance, allows the user to paste\n\t * content near a widget when the fake caret is first activated using the arrow keys.\n\t *\n\t * The content is inserted according to the `widget-type-around` selection attribute (see {@link #_handleArrowKeyPress}).\n\t *\n\t * @private\n\t */\n\tprivate _enableInsertContentIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst documentSelection = model.document.selection;\n\n\t\tthis._listenToIfEnabled<ModelInsertContentEvent>( editor.model, 'insertContent', ( evt, [ content, selectable ] ) => {\n\t\t\tif ( selectable && !( selectable as any ).is( 'documentSelection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( documentSelection );\n\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\treturn model.change( writer => {\n\t\t\t\tconst selectedElement = documentSelection.getSelectedElement();\n\t\t\t\tconst position = model.createPositionAt( selectedElement!, typeAroundFakeCaretPosition );\n\t\t\t\tconst selection = writer.createSelection( position );\n\n\t\t\t\tconst result = model.insertContent( content, selection );\n\n\t\t\t\twriter.setSelection( selection );\n\n\t\t\t\treturn result;\n\t\t\t} );\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Attaches the {@link module:engine/model/model~Model#event:insertObject} event listener that modifies the\n\t * `options.findOptimalPosition`parameter to position of fake caret in relation to selected element\n\t * to reflect user's intent of desired insertion position.\n\t *\n\t * The object is inserted according to the `widget-type-around` selection attribute (see {@link #_handleArrowKeyPress}).\n\t *\n\t * @private\n\t */\n\tprivate _enableInsertObjectIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst documentSelection = model.document.selection;\n\n\t\tthis._listenToIfEnabled<ModelInsertObjectEvent>( editor.model, 'insertObject', ( evt, args ) => {\n\t\t\tconst [ , selectable, , options = {} ] = args;\n\n\t\t\tif ( selectable && !( selectable as any ).is( 'documentSelection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( documentSelection );\n\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\toptions.findOptimalPosition = typeAroundFakeCaretPosition;\n\t\t\targs[ 3 ] = options;\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Attaches the {@link module:engine/model/model~Model#event:deleteContent} event listener to block the event when the fake\n\t * caret is active.\n\t *\n\t * This is required for cases that trigger {@link module:engine/model/model~Model#deleteContent `model.deleteContent()`}\n\t * before calling {@link module:engine/model/model~Model#insertContent `model.insertContent()`} like, for instance,\n\t * plain text pasting.\n\t *\n\t * @private\n\t */\n\tprivate _enableDeleteContentIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst documentSelection = model.document.selection;\n\n\t\tthis._listenToIfEnabled<ModelDeleteContentEvent>( editor.model, 'deleteContent', ( evt, [ selection ] ) => {\n\t\t\tif ( selection && !selection.is( 'documentSelection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( documentSelection );\n\n\t\t\t// Disable removing the selection content while pasting plain text.\n\t\t\tif ( typeAroundFakeCaretPosition ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n}\n\n// Injects the type around UI into a view widget instance.\n//\n// @param {module:engine/view/downcastwriter~DowncastWriter} viewWriter\n// @param {Object.<String,String>} buttonTitles\n// @param {module:engine/view/element~Element} widgetViewElement\nfunction injectUIIntoWidget(\n\tviewWriter: DowncastWriter,\n\tbuttonTitles: { before: string; after: string },\n\twidgetViewElement: ViewElement ) {\n\tconst typeAroundWrapper = viewWriter.createUIElement( 'div', {\n\t\tclass: 'ck ck-reset_all ck-widget__type-around'\n\t}, function( domDocument ) {\n\t\tconst wrapperDomElement = this.toDomElement( domDocument );\n\n\t\tinjectButtons( wrapperDomElement, buttonTitles );\n\t\tinjectFakeCaret( wrapperDomElement );\n\n\t\treturn wrapperDomElement;\n\t} );\n\n\t// Inject the type around wrapper into the widget's wrapper.\n\tviewWriter.insert( viewWriter.createPositionAt( widgetViewElement, 'end' ), typeAroundWrapper );\n}\n\n// FYI: Not using the IconView class because each instance would need to be destroyed to avoid memory leaks\n// and it's pretty hard to figure out when a view (widget) is gone for good so it's cheaper to use raw\n// <svg> here.\n//\n// @param {HTMLElement} wrapperDomElement\n// @param {Object.<String,String>} buttonTitles\nfunction injectButtons( wrapperDomElement: HTMLElement, buttonTitles: { before: string; after: string } ) {\n\tfor ( const position of POSSIBLE_INSERTION_POSITIONS ) {\n\t\tconst buttonTemplate = new Template( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-widget__type-around__button',\n\t\t\t\t\t`ck-widget__type-around__button_${ position }`\n\t\t\t\t],\n\t\t\t\ttitle: buttonTitles[ position ],\n\t\t\t\t'aria-hidden': 'true'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\twrapperDomElement.ownerDocument.importNode( RETURN_ARROW_ICON_ELEMENT, true )\n\t\t\t]\n\t\t} );\n\n\t\twrapperDomElement.appendChild( buttonTemplate.render() );\n\t}\n}\n\n// @param {HTMLElement} wrapperDomElement\nfunction injectFakeCaret( wrapperDomElement: HTMLElement ) {\n\tconst caretTemplate = new Template( {\n\t\ttag: 'div',\n\t\tattributes: {\n\t\t\tclass: [\n\t\t\t\t'ck',\n\t\t\t\t'ck-widget__type-around__fake-caret'\n\t\t\t]\n\t\t}\n\t} );\n\n\twrapperDomElement.appendChild( caretTemplate.render() );\n}\n\n// Returns the ancestor of an element closest to the root which is empty. For instance,\n// for `<baz>`:\n//\n//\t\t<foo>abc<bar><baz></baz></bar></foo>\n//\n// it returns `<bar>`.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/model/element~Element} element\n// @returns {module:engine/model/element~Element|null}\nfunction getDeepestEmptyElementAncestor( schema: Schema, element: Element ) {\n\tlet deepestEmptyAncestor = element;\n\n\tfor ( const ancestor of element.getAncestors( { parentFirst: true } ) ) {\n\t\tif ( ( ancestor as any ).childCount > 1 || schema.isLimit( ancestor ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\tdeepestEmptyAncestor = ancestor as Element;\n\t}\n\n\treturn deepestEmptyAncestor;\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ WidgetTypeAround.pluginName ]: WidgetTypeAround;\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 10 8\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M9.055.263v3.972h-6.77M1 4.216l2-2.038m-2 2 2 2.038\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport {\n\tkeyCodes,\n\tRect,\n\ttype GetCallback\n} from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDocumentSelection,\n\tEditingController,\n\tModel,\n\tPosition,\n\tRange,\n\tSchema,\n\tSelection,\n\tViewDocumentArrowKeyEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * @module widget/verticalnavigationhandler\n */\n\n/**\n * Returns 'keydown' handler for up/down arrow keys that modifies the caret movement if it's in a text line next to an object.\n *\n * @param {module:engine/controller/editingcontroller~EditingController} editing The editing controller.\n * @returns {Function}\n */\nexport default function verticalNavigationHandler(\n\tediting: EditingController\n): GetCallback<ViewDocumentArrowKeyEvent> {\n\tconst model = editing.model;\n\n\treturn ( evt, data ) => {\n\t\tconst arrowUpPressed = data.keyCode == keyCodes.arrowup;\n\t\tconst arrowDownPressed = data.keyCode == keyCodes.arrowdown;\n\t\tconst expandSelection = data.shiftKey;\n\t\tconst selection = model.document.selection;\n\n\t\tif ( !arrowUpPressed && !arrowDownPressed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst isForward = arrowDownPressed;\n\n\t\t// Navigation is in the opposite direction than the selection direction so this is shrinking of the selection.\n\t\t// Selection for sure will not approach any object.\n\t\tif ( expandSelection && selectionWillShrink( selection, isForward ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Find a range between selection and closest limit element.\n\t\tconst range = findTextRangeFromSelection( editing, selection, isForward );\n\n\t\t// There is no selection position inside the limit element.\n\t\tif ( !range ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If already at the edge of a limit element.\n\t\tif ( range.isCollapsed ) {\n\t\t\t// A collapsed selection at limit edge - nothing more to do.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// A non collapsed selection is at the limit edge while expanding the selection - let others do their stuff.\n\t\t\telse if ( expandSelection ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\t// If the range is a single line (there is no word wrapping) then move the selection to the position closest to the limit element.\n\t\t//\n\t\t// We can't move the selection directly to the isObject element (eg. table cell) because of dual position at the end/beginning\n\t\t// of wrapped line (it's at the same time at the end of one line and at the start of the next line).\n\t\tif ( range.isCollapsed || isSingleLineRange( editing, range, isForward ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\tconst newPosition = isForward ? range.end : range.start;\n\n\t\t\t\tif ( expandSelection ) {\n\t\t\t\t\tconst newSelection = model.createSelection( selection.anchor );\n\t\t\t\t\tnewSelection.setFocus( newPosition );\n\n\t\t\t\t\twriter.setSelection( newSelection );\n\t\t\t\t} else {\n\t\t\t\t\twriter.setSelection( newPosition );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tevt.stop();\n\t\t\tdata.preventDefault();\n\t\t\tdata.stopPropagation();\n\t\t}\n\t};\n}\n\n// Finds the range between selection and closest limit element (in the direction of navigation).\n// The position next to limit element is adjusted to the closest allowed `$text` position.\n//\n// Returns `null` if, according to the schema, the resulting range cannot contain a `$text` element.\n//\n// @param {module:engine/controller/editingcontroller~EditingController} editing The editing controller.\n// @param {module:engine/model/selection~Selection} selection The current selection.\n// @param {Boolean} isForward The expected navigation direction.\n// @returns {module:engine/model/range~Range|null}\n//\nfunction findTextRangeFromSelection( editing: EditingController, selection: Selection | DocumentSelection, isForward: boolean ) {\n\tconst model = editing.model;\n\n\tif ( isForward ) {\n\t\tconst startPosition = selection.isCollapsed ? selection.focus! : selection.getLastPosition()!;\n\t\tconst endPosition = getNearestNonInlineLimit( model, startPosition, 'forward' );\n\n\t\t// There is no limit element, browser should handle this.\n\t\tif ( !endPosition ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = model.createRange( startPosition, endPosition );\n\t\tconst lastRangePosition = getNearestTextPosition( model.schema, range, 'backward' );\n\n\t\tif ( lastRangePosition ) {\n\t\t\treturn model.createRange( startPosition, lastRangePosition );\n\t\t}\n\n\t\treturn null;\n\t} else {\n\t\tconst endPosition = selection.isCollapsed ? selection.focus! : selection.getFirstPosition()!;\n\t\tconst startPosition = getNearestNonInlineLimit( model, endPosition, 'backward' );\n\n\t\t// There is no limit element, browser should handle this.\n\t\tif ( !startPosition ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = model.createRange( startPosition, endPosition );\n\t\tconst firstRangePosition = getNearestTextPosition( model.schema, range, 'forward' );\n\n\t\tif ( firstRangePosition ) {\n\t\t\treturn model.createRange( firstRangePosition, endPosition );\n\t\t}\n\n\t\treturn null;\n\t}\n}\n\n// Finds the limit element position that is closest to startPosition.\n//\n// @param {module:engine/model/model~Model} model\n// @param {<module:engine/model/position~Position>} startPosition\n// @param {'forward'|'backward'} direction Search direction.\n// @returns {<module:engine/model/position~Position>|null}\n//\nfunction getNearestNonInlineLimit( model: Model, startPosition: Position, direction: 'forward' | 'backward' ) {\n\tconst schema = model.schema;\n\tconst range = model.createRangeIn( startPosition.root );\n\n\tconst walkerValueType = direction == 'forward' ? 'elementStart' : 'elementEnd';\n\n\tfor ( const { previousPosition, item, type } of range.getWalker( { startPosition, direction } ) ) {\n\t\tif ( schema.isLimit( item ) && !schema.isInline( item ) ) {\n\t\t\treturn previousPosition;\n\t\t}\n\n\t\t// Stop looking for isLimit element if the next element is a block element (it is for sure not single line).\n\t\tif ( type == walkerValueType && schema.isBlock( item ) ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n// Basing on the provided range, finds the first or last (depending on `direction`) position inside the range\n// that can contain `$text` (according to schema).\n//\n// @param {module:engine/model/schema~Schema} schema The schema.\n// @param {module:engine/model/range~Range} range The range to find the position in.\n// @param {'forward'|'backward'} direction Search direction.\n// @returns {module:engine/model/position~Position|null} The nearest selection position.\n//\nfunction getNearestTextPosition( schema: Schema, range: Range, direction: 'forward' | 'backward' ) {\n\tconst position = direction == 'backward' ? range.end : range.start;\n\n\tif ( schema.checkChild( position, '$text' ) ) {\n\t\treturn position;\n\t}\n\n\tfor ( const { nextPosition } of range.getWalker( { direction } ) ) {\n\t\tif ( schema.checkChild( nextPosition, '$text' ) ) {\n\t\t\treturn nextPosition;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n// Checks if the DOM range corresponding to the provided model range renders as a single line by analyzing DOMRects\n// (verifying if they visually wrap content to the next line).\n//\n// @param {module:engine/controller/editingcontroller~EditingController} editing The editing controller.\n// @param {module:engine/model/range~Range} modelRange The current table cell content range.\n// @param {Boolean} isForward The expected navigation direction.\n// @returns {Boolean}\n//\nfunction isSingleLineRange( editing: EditingController, modelRange: Range, isForward: boolean ) {\n\tconst model = editing.model;\n\tconst domConverter = editing.view.domConverter;\n\n\t// Wrapped lines contain exactly the same position at the end of current line\n\t// and at the beginning of next line. That position's client rect is at the end\n\t// of current line. In case of caret at first position of the last line that 'dual'\n\t// position would be detected as it's not the last line.\n\tif ( isForward ) {\n\t\tconst probe = model.createSelection( modelRange.start );\n\n\t\tmodel.modifySelection( probe );\n\n\t\t// If the new position is at the end of the container then we can't use this position\n\t\t// because it would provide incorrect result for eg caption of image and selection\n\t\t// just before end of it. Also in this case there is no \"dual\" position.\n\t\tif ( !probe.focus!.isAtEnd && !modelRange.start.isEqual( probe.focus! ) ) {\n\t\t\tmodelRange = model.createRange( probe.focus!, modelRange.end );\n\t\t}\n\t}\n\n\tconst viewRange = editing.mapper.toViewRange( modelRange );\n\tconst domRange = domConverter.viewRangeToDom( viewRange );\n\tconst rects = Rect.getDomRangeRects( domRange );\n\n\tlet boundaryVerticalPosition;\n\n\tfor ( const rect of rects ) {\n\t\tif ( boundaryVerticalPosition === undefined ) {\n\t\t\tboundaryVerticalPosition = Math.round( rect.bottom );\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Let's check if this rect is in new line.\n\t\tif ( Math.round( rect.top ) >= boundaryVerticalPosition ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tboundaryVerticalPosition = Math.max( boundaryVerticalPosition, Math.round( rect.bottom ) );\n\t}\n\n\treturn true;\n}\n\nfunction selectionWillShrink( selection: DocumentSelection, isForward: boolean ) {\n\treturn !selection.isCollapsed && selection.isBackward == isForward;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./widget.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widget\n */\n\nimport { Plugin, type PluginDependencies } from '@ckeditor/ckeditor5-core';\n\nimport {\n\tMouseObserver,\n\ttype DomEventData,\n\ttype DowncastSelectionEvent,\n\ttype DowncastWriter,\n\ttype Element,\n\ttype Node,\n\ttype ViewDocumentArrowKeyEvent,\n\ttype ViewDocumentFragment,\n\ttype ViewDocumentMouseEvent,\n\ttype ViewElement\n} from '@ckeditor/ckeditor5-engine';\n\nimport { Delete, type ViewDocumentDeleteEvent } from '@ckeditor/ckeditor5-typing';\n\nimport {\n\tenv,\n\tgetLocalizedArrowKeyCodeDirection,\n\ttype EventInfo,\n\ttype KeystrokeInfo\n} from '@ckeditor/ckeditor5-utils';\n\nimport WidgetTypeAround from './widgettypearound/widgettypearound';\nimport verticalNavigationHandler from './verticalnavigation';\nimport { getLabel, isWidget, WIDGET_SELECTED_CLASS_NAME } from './utils';\n\nimport '../theme/widget.css';\n\n/**\n * The widget plugin. It enables base support for widgets.\n *\n * See {@glink api/widget package page} for more details and documentation.\n *\n * This plugin enables multiple behaviors required by widgets:\n *\n * * The model to view selection converter for the editing pipeline (it handles widget custom selection rendering).\n * If a converted selection wraps around a widget element, that selection is marked as\n * {@link module:engine/view/selection~Selection#isFake fake}. Additionally, the `ck-widget_selected` CSS class\n * is added to indicate that widget has been selected.\n * * The mouse and keyboard events handling on and around widget elements.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Widget extends Plugin {\n\tprivate _previouslySelected!: Set<ViewElement>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Widget' {\n\t\treturn 'Widget';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ WidgetTypeAround, Delete ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t/**\n\t\t * Holds previously selected widgets.\n\t\t *\n\t\t * @private\n\t\t * @type {Set.<module:engine/view/element~Element>}\n\t\t */\n\t\tthis._previouslySelected = new Set();\n\n\t\t// Model to view selection converter.\n\t\t// Converts selection placed over widget element to fake selection.\n\t\t//\n\t\t// By default, the selection is downcasted by the engine to surround the attribute element, even though its only\n\t\t// child is an inline widget. A similar thing also happens when a collapsed marker is rendered as a UI element\n\t\t// next to an inline widget: the view selection contains both the widget and the marker.\n\t\t//\n\t\t// This prevents creating a correct fake selection when this inline widget is selected. Normalize the selection\n\t\t// in these cases based on the model:\n\t\t//\n\t\t//\t\t[<attributeElement><inlineWidget /></attributeElement>] -> <attributeElement>[<inlineWidget />]</attributeElement>\n\t\t//\t\t[<uiElement></uiElement><inlineWidget />] -> <uiElement></uiElement>[<inlineWidget />]\n\t\t//\n\t\t// Thanks to this:\n\t\t//\n\t\t// * fake selection can be set correctly,\n\t\t// * any logic depending on (View)Selection#getSelectedElement() also works OK.\n\t\t//\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/9524.\n\t\tthis.editor.editing.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', ( evt, data, conversionApi ) => {\n\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\tconst modelSelection = data.selection;\n\n\t\t\t// The collapsed selection can't contain any widget.\n\t\t\tif ( modelSelection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedModelElement = modelSelection.getSelectedElement();\n\n\t\t\tif ( !selectedModelElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedViewElement = editor.editing.mapper.toViewElement( selectedModelElement )!;\n\n\t\t\tif ( !isWidget( selectedViewElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !conversionApi.consumable.consume( modelSelection, 'selection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tviewWriter.setSelection( viewWriter.createRangeOn( selectedViewElement ), {\n\t\t\t\tfake: true,\n\t\t\t\tlabel: getLabel( selectedViewElement )\n\t\t\t} );\n\t\t} );\n\n\t\t// Mark all widgets inside the selection with the css class.\n\t\t// This handler is registered at the 'low' priority so it's triggered after the real selection conversion.\n\t\tthis.editor.editing.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', ( evt, data, conversionApi ) => {\n\t\t\t// Remove selected class from previously selected widgets.\n\t\t\tthis._clearPreviouslySelectedWidgets( conversionApi.writer );\n\n\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\t\tlet lastMarked = null;\n\n\t\t\tfor ( const range of viewSelection.getRanges() ) {\n\t\t\t\t// Note: There could be multiple selected widgets in a range but no fake selection.\n\t\t\t\t// All of them must be marked as selected, for instance [<widget></widget><widget></widget>]\n\t\t\t\tfor ( const value of range ) {\n\t\t\t\t\tconst node = value.item as ViewElement;\n\t\t\t\t\t// Do not mark nested widgets in selected one. See: #4594\n\t\t\t\t\tif ( isWidget( node ) && !isChild( node, lastMarked ) ) {\n\t\t\t\t\t\tviewWriter.addClass( WIDGET_SELECTED_CLASS_NAME, node );\n\t\t\t\t\t\tthis._previouslySelected.add( node );\n\t\t\t\t\t\tlastMarked = node;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\t// If mouse down is pressed on widget - create selection over whole widget.\n\t\tview.addObserver( MouseObserver );\n\t\tthis.listenTo<ViewDocumentMouseEvent>( viewDocument, 'mousedown', ( ...args ) => this._onMousedown( ...args ) );\n\n\t\t// There are two keydown listeners working on different priorities. This allows other\n\t\t// features such as WidgetTypeAround or TableKeyboard to attach their listeners in between\n\t\t// and customize the behavior even further in different content/selection scenarios.\n\t\t//\n\t\t// * The first listener handles changing the selection on arrow key press\n\t\t// if the widget is selected or if the selection is next to a widget and the widget\n\t\t// should become selected upon the arrow key press.\n\t\t//\n\t\t// * The second (late) listener makes sure the default browser action on arrow key press is\n\t\t// prevented when a widget is selected. This prevents the selection from being moved\n\t\t// from a fake selection container.\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>( viewDocument, 'arrowKey', ( ...args ) => {\n\t\t\tthis._handleSelectionChangeOnArrowKeyPress( ...args );\n\t\t}, { context: [ isWidget, '$text' ] } );\n\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>( viewDocument, 'arrowKey', ( ...args ) => {\n\t\t\tthis._preventDefaultOnArrowKeyPress( ...args );\n\t\t}, { context: '$root' } );\n\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>(\n\t\t\tviewDocument,\n\t\t\t'arrowKey',\n\t\t\tverticalNavigationHandler( this.editor.editing ),\n\t\t\t{ context: '$text' }\n\t\t);\n\n\t\t// Handle custom delete behaviour.\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\tif ( this._handleDelete( data.direction == 'forward' ) ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: '$root' } );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:mousedown mousedown} events on widget elements.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} eventInfo\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} domEventData\n\t */\n\tprivate _onMousedown( eventInfo: EventInfo, domEventData: DomEventData<MouseEvent> ) {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tlet element: ViewElement | null = domEventData.target;\n\n\t\t// Do nothing for single or double click inside nested editable.\n\t\tif ( isInsideNestedEditable( element ) ) {\n\t\t\t// But at least triple click inside nested editable causes broken selection in Safari.\n\t\t\t// For such event, we select the entire nested editable element.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5/issues/1463.\n\t\t\tif ( ( env.isSafari || env.isGecko ) && domEventData.domEvent.detail >= 3 ) {\n\t\t\t\tconst mapper = editor.editing.mapper;\n\t\t\t\tconst viewElement = element.is( 'attributeElement' ) ?\n\t\t\t\t\telement.findAncestor( element => !element.is( 'attributeElement' ) )! : element;\n\t\t\t\tconst modelElement = mapper.toModelElement( viewElement )!;\n\n\t\t\t\tdomEventData.preventDefault();\n\n\t\t\t\tthis.editor.model.change( writer => {\n\t\t\t\t\twriter.setSelection( modelElement, 'in' );\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// If target is not a widget element - check if one of the ancestors is.\n\t\tif ( !isWidget( element ) ) {\n\t\t\telement = element.findAncestor( isWidget );\n\n\t\t\tif ( !element ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\t// On Android selection would jump to the first table cell, on other devices\n\t\t// we can't block it (and don't need to) because of drag and drop support.\n\t\tif ( env.isAndroid ) {\n\t\t\tdomEventData.preventDefault();\n\t\t}\n\n\t\t// Focus editor if is not focused already.\n\t\tif ( !viewDocument.isFocused ) {\n\t\t\tview.focus();\n\t\t}\n\n\t\t// Create model selection over widget.\n\t\tconst modelElement = editor.editing.mapper.toModelElement( element );\n\n\t\tthis._setSelectionOverElement( modelElement! );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:keydown keydown} events and changes\n\t * the model selection when:\n\t *\n\t * * arrow key is pressed when the widget is selected,\n\t * * the selection is next to a widget and the widget should become selected upon the arrow key press.\n\t *\n\t * See {@link #_preventDefaultOnArrowKeyPress}.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} eventInfo\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} domEventData\n\t */\n\tprivate _handleSelectionChangeOnArrowKeyPress( eventInfo: EventInfo, domEventData: DomEventData & KeystrokeInfo ) {\n\t\tconst keyCode = domEventData.keyCode;\n\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst objectElement = modelSelection.getSelectedElement();\n\t\tconst direction = getLocalizedArrowKeyCodeDirection( keyCode, this.editor.locale.contentLanguageDirection );\n\t\tconst isForward = direction == 'down' || direction == 'right';\n\t\tconst isVerticalNavigation = direction == 'up' || direction == 'down';\n\n\t\t// If object element is selected.\n\t\tif ( objectElement && schema.isObject( objectElement ) ) {\n\t\t\tconst position = isForward ? modelSelection.getLastPosition() : modelSelection.getFirstPosition();\n\t\t\tconst newRange = schema.getNearestSelectionRange( position!, isForward ? 'forward' : 'backward' );\n\n\t\t\tif ( newRange ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\twriter.setSelection( newRange );\n\t\t\t\t} );\n\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t\teventInfo.stop();\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Handle collapsing of the selection when there is any widget on the edge of selection.\n\t\t// This is needed because browsers have problems with collapsing such selection.\n\t\tif ( !modelSelection.isCollapsed && !domEventData.shiftKey ) {\n\t\t\tconst firstPosition = modelSelection.getFirstPosition();\n\t\t\tconst lastPosition = modelSelection.getLastPosition();\n\n\t\t\tconst firstSelectedNode = firstPosition!.nodeAfter;\n\t\t\tconst lastSelectedNode = lastPosition!.nodeBefore;\n\n\t\t\tif ( firstSelectedNode && schema.isObject( firstSelectedNode ) || lastSelectedNode && schema.isObject( lastSelectedNode ) ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\twriter.setSelection( isForward ? lastPosition : firstPosition );\n\t\t\t\t} );\n\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t\teventInfo.stop();\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Return if not collapsed.\n\t\tif ( !modelSelection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If selection is next to object element.\n\n\t\tconst objectElementNextToSelection = this._getObjectElementNextToSelection( isForward );\n\n\t\tif ( objectElementNextToSelection && schema.isObject( objectElementNextToSelection ) ) {\n\t\t\t// Do not select an inline widget while handling up/down arrow.\n\t\t\tif ( schema.isInline( objectElementNextToSelection ) && isVerticalNavigation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._setSelectionOverElement( objectElementNextToSelection );\n\n\t\t\tdomEventData.preventDefault();\n\t\t\teventInfo.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:keydown keydown} events and prevents\n\t * the default browser behavior to make sure the fake selection is not being moved from a fake selection\n\t * container.\n\t *\n\t * See {@link #_handleSelectionChangeOnArrowKeyPress}.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} eventInfo\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} domEventData\n\t */\n\tprivate _preventDefaultOnArrowKeyPress( eventInfo: EventInfo, domEventData: DomEventData ) {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst objectElement = model.document.selection.getSelectedElement();\n\n\t\t// If object element is selected.\n\t\tif ( objectElement && schema.isObject( objectElement ) ) {\n\t\t\tdomEventData.preventDefault();\n\t\t\teventInfo.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles delete keys: backspace and delete.\n\t *\n\t * @private\n\t * @param {Boolean} isForward Set to true if delete was performed in forward direction.\n\t * @returns {Boolean|undefined} Returns `true` if keys were handled correctly.\n\t */\n\tprivate _handleDelete( isForward: boolean ) {\n\t\t// Do nothing when the read only mode is enabled.\n\t\tif ( this.editor.isReadOnly ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelDocument = this.editor.model.document;\n\t\tconst modelSelection = modelDocument.selection;\n\n\t\t// Do nothing on non-collapsed selection.\n\t\tif ( !modelSelection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst objectElement = this._getObjectElementNextToSelection( isForward );\n\n\t\tif ( objectElement ) {\n\t\t\tthis.editor.model.change( writer => {\n\t\t\t\tlet previousNode = modelSelection.anchor!.parent;\n\n\t\t\t\t// Remove previous element if empty.\n\t\t\t\twhile ( previousNode.isEmpty ) {\n\t\t\t\t\tconst nodeToRemove = previousNode;\n\t\t\t\t\tpreviousNode = nodeToRemove.parent!;\n\n\t\t\t\t\twriter.remove( nodeToRemove as Element );\n\t\t\t\t}\n\n\t\t\t\tthis._setSelectionOverElement( objectElement );\n\t\t\t} );\n\n\t\t\treturn true;\n\t\t}\n\t}\n\n\t/**\n\t * Sets {@link module:engine/model/selection~Selection document's selection} over given element.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {module:engine/model/element~Element} element\n\t */\n\tpublic _setSelectionOverElement( element: Node ): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\twriter.setSelection( writer.createRangeOn( element ) );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks if {@link module:engine/model/element~Element element} placed next to the current\n\t * {@link module:engine/model/selection~Selection model selection} exists and is marked in\n\t * {@link module:engine/model/schema~Schema schema} as `object`.\n\t *\n\t * @internal\n\t * @protected\n\t * @param {Boolean} forward Direction of checking.\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tpublic _getObjectElementNextToSelection( forward: boolean ): Element | null {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst modelSelection = model.document.selection;\n\n\t\t// Clone current selection to use it as a probe. We must leave default selection as it is so it can return\n\t\t// to its current state after undo.\n\t\tconst probe = model.createSelection( modelSelection );\n\t\tmodel.modifySelection( probe, { direction: forward ? 'forward' : 'backward' } );\n\n\t\t// The selection didn't change so there is nothing there.\n\t\tif ( probe.isEqual( modelSelection ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst objectElement = forward ? probe.focus!.nodeBefore : probe.focus!.nodeAfter;\n\n\t\tif ( !!objectElement && schema.isObject( objectElement ) ) {\n\t\t\treturn objectElement as Element;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Removes CSS class from previously selected widgets.\n\t *\n\t * @private\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n\t */\n\tprivate _clearPreviouslySelectedWidgets( writer: DowncastWriter ) {\n\t\tfor ( const widget of this._previouslySelected ) {\n\t\t\twriter.removeClass( WIDGET_SELECTED_CLASS_NAME, widget );\n\t\t}\n\n\t\tthis._previouslySelected.clear();\n\t}\n}\n\n// Returns `true` when element is a nested editable or is placed inside one.\n//\n// @param {module:engine/view/element~Element}\n// @returns {Boolean}\nfunction isInsideNestedEditable( element: ViewElement ) {\n\tlet currentElement: ViewElement | ViewDocumentFragment | null = element;\n\n\twhile ( currentElement ) {\n\t\tif ( currentElement.is( 'editableElement' ) && !currentElement.is( 'rootElement' ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Click on nested widget should select it.\n\t\tif ( isWidget( currentElement ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tcurrentElement = currentElement.parent;\n\t}\n\n\treturn false;\n}\n\n// Checks whether the specified `element` is a child of the `parent` element.\n//\n// @param {module:engine/view/element~Element} element An element to check.\n// @param {module:engine/view/element~Element|null} parent A parent for the element.\n// @returns {Boolean}\nfunction isChild( element: ViewElement, parent: ViewElement | null ) {\n\tif ( !parent ) {\n\t\treturn false;\n\t}\n\n\treturn Array.from( element.getAncestors() ).includes( parent );\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ Widget.pluginName ]: Widget;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgettoolbarrepository\n */\n\nimport {\n\tPlugin,\n\ttype Editor,\n\ttype EditorUIUpdateEvent,\n\ttype PluginDependencies,\n\ttype ToolbarConfigItem\n} from '@ckeditor/ckeditor5-core';\n\nimport type { ViewDocumentSelection, ViewElement } from '@ckeditor/ckeditor5-engine';\n\nimport {\n\tBalloonPanelView,\n\tContextualBalloon,\n\tToolbarView,\n\ttype BaloonToolbarShowEvent,\n\ttype View\n} from '@ckeditor/ckeditor5-ui';\n\nimport {\n\tCKEditorError,\n\tlogWarning,\n\ttype ObservableChangeEvent,\n\ttype RectSource\n} from '@ckeditor/ckeditor5-utils';\n\nimport { isWidget } from './utils';\n\n/**\n * Widget toolbar repository plugin. A central point for registering widget toolbars. This plugin handles the whole\n * toolbar rendering process and exposes a concise API.\n *\n * To add a toolbar for your widget use the {@link ~WidgetToolbarRepository#register `WidgetToolbarRepository#register()`} method.\n *\n * The following example comes from the {@link module:image/imagetoolbar~ImageToolbar} plugin:\n *\n * \t\tclass ImageToolbar extends Plugin {\n *\t\t\tstatic get requires() {\n *\t\t\t\treturn [ WidgetToolbarRepository ];\n *\t\t\t}\n *\n *\t\t\tafterInit() {\n *\t\t\t\tconst editor = this.editor;\n *\t\t\t\tconst widgetToolbarRepository = editor.plugins.get( WidgetToolbarRepository );\n *\n *\t\t\t\twidgetToolbarRepository.register( 'image', {\n *\t\t\t\t\titems: editor.config.get( 'image.toolbar' ),\n *\t\t\t\t\tgetRelatedElement: getClosestSelectedImageWidget\n *\t\t\t\t} );\n *\t\t\t}\n *\t\t}\n */\nexport default class WidgetToolbarRepository extends Plugin {\n\tprivate _toolbarDefinitions!: Map<string, WidgetRepositoryToolbarDefinition>;\n\tprivate _balloon!: ContextualBalloon;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ ContextualBalloon ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'WidgetToolbarRepository' {\n\t\treturn 'WidgetToolbarRepository';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Disables the default balloon toolbar for all widgets.\n\t\tif ( editor.plugins.has( 'BalloonToolbar' ) ) {\n\t\t\tconst balloonToolbar = editor.plugins.get( 'BalloonToolbar' );\n\n\t\t\tthis.listenTo<BaloonToolbarShowEvent>( balloonToolbar, 'show', evt => {\n\t\t\t\tif ( isWidgetSelected( editor.editing.view.document.selection ) ) {\n\t\t\t\t\tevt.stop();\n\t\t\t\t}\n\t\t\t}, { priority: 'high' } );\n\t\t}\n\n\t\t/**\n\t\t * A map of toolbar definitions.\n\t\t *\n\t\t * @protected\n\t\t * @member {Map.<String,module:widget/widgettoolbarrepository~WidgetRepositoryToolbarDefinition>} #_toolbarDefinitions\n\t\t */\n\t\tthis._toolbarDefinitions = new Map();\n\n\t\t/**\n\t\t * @private\n\t\t */\n\t\tthis._balloon = this.editor.plugins.get( 'ContextualBalloon' );\n\n\t\tthis.on<ObservableChangeEvent>( 'change:isEnabled', () => {\n\t\t\tthis._updateToolbarsVisibility();\n\t\t} );\n\n\t\tthis.listenTo<EditorUIUpdateEvent>( editor.ui, 'update', () => {\n\t\t\tthis._updateToolbarsVisibility();\n\t\t} );\n\n\t\t// UI#update is not fired after focus is back in editor, we need to check if balloon panel should be visible.\n\t\tthis.listenTo<ObservableChangeEvent>( editor.ui.focusTracker, 'change:isFocused', () => {\n\t\t\tthis._updateToolbarsVisibility();\n\t\t}, { priority: 'low' } );\n\t}\n\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tfor ( const toolbarConfig of this._toolbarDefinitions.values() ) {\n\t\t\ttoolbarConfig.view.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Registers toolbar in the WidgetToolbarRepository. It renders it in the `ContextualBalloon` based on the value of the invoked\n\t * `getRelatedElement` function. Toolbar items are gathered from `items` array.\n\t * The balloon's CSS class is by default `ck-toolbar-container` and may be override with the `balloonClassName` option.\n\t *\n\t * Note: This method should be called in the {@link module:core/plugin~PluginInterface#afterInit `Plugin#afterInit()`}\n\t * callback (or later) to make sure that the given toolbar items were already registered by other plugins.\n\t *\n\t * @param {String} toolbarId An id for the toolbar. Used to\n\t * @param {Object} options\n\t * @param {String} [options.ariaLabel] Label used by assistive technologies to describe this toolbar element.\n\t * @param {Array.<String>} options.items Array of toolbar items.\n\t * @param {Function} options.getRelatedElement Callback which returns an element the toolbar should be attached to.\n\t * @param {String} [options.balloonClassName='ck-toolbar-container'] CSS class for the widget balloon.\n\t */\n\tpublic register(\n\t\ttoolbarId: string,\n\t\t{ ariaLabel, items, getRelatedElement, balloonClassName = 'ck-toolbar-container' }: {\n\t\t\tariaLabel?: string;\n\t\t\titems: Array<ToolbarConfigItem>;\n\t\t\tgetRelatedElement: ( selection: ViewDocumentSelection ) => ViewElement;\n\t\t\tballoonClassName?: string;\n\t\t}\n\t): void {\n\t\t// Trying to register a toolbar without any item.\n\t\tif ( !items.length ) {\n\t\t\t/**\n\t\t\t * When {@link #register registering} a new widget toolbar, you need to provide a non-empty array with\n\t\t\t * the items that will be inserted into the toolbar.\n\t\t\t *\n\t\t\t * If you see this error when integrating the editor, you likely forgot to configure one of the widget toolbars.\n\t\t\t *\n\t\t\t * See for instance:\n\t\t\t *\n\t\t\t * * {@link module:table/table~TableConfig#contentToolbar `config.table.contentToolbar`}\n\t\t\t * * {@link module:image/image~ImageConfig#toolbar `config.image.toolbar`}\n\t\t\t *\n\t\t\t * @error widget-toolbar-no-items\n\t\t\t * @param {String} toolbarId The id of the toolbar that has not been configured correctly.\n\t\t\t */\n\t\t\tlogWarning( 'widget-toolbar-no-items', { toolbarId } );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst toolbarView = new ToolbarView( editor.locale );\n\n\t\ttoolbarView.ariaLabel = ariaLabel || t( 'Widget toolbar' );\n\n\t\tif ( this._toolbarDefinitions.has( toolbarId ) ) {\n\t\t\t/**\n\t\t\t * Toolbar with the given id was already added.\n\t\t\t *\n\t\t\t * @error widget-toolbar-duplicated\n\t\t\t * @param toolbarId Toolbar id.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'widget-toolbar-duplicated', this, { toolbarId } );\n\t\t}\n\n\t\ttoolbarView.fillFromConfig( items, editor.ui.componentFactory );\n\n\t\tconst toolbarDefinition = {\n\t\t\tview: toolbarView,\n\t\t\tgetRelatedElement,\n\t\t\tballoonClassName\n\t\t};\n\n\t\t// Register the toolbar so it becomes available for Alt+F10 and Esc navigation.\n\t\teditor.ui.addToolbar( toolbarView, {\n\t\t\tisContextual: true,\n\t\t\tbeforeFocus: () => {\n\t\t\t\tconst relatedElement = getRelatedElement( editor.editing.view.document.selection );\n\n\t\t\t\tif ( relatedElement ) {\n\t\t\t\t\tthis._showToolbar( toolbarDefinition, relatedElement );\n\t\t\t\t}\n\t\t\t},\n\t\t\tafterBlur: () => {\n\t\t\t\tthis._hideToolbar( toolbarDefinition );\n\t\t\t}\n\t\t} );\n\n\t\tthis._toolbarDefinitions.set( toolbarId, toolbarDefinition );\n\t}\n\n\t/**\n\t * Iterates over stored toolbars and makes them visible or hidden.\n\t *\n\t * @private\n\t */\n\tprivate _updateToolbarsVisibility() {\n\t\tlet maxRelatedElementDepth = 0;\n\t\tlet deepestRelatedElement = null;\n\t\tlet deepestToolbarDefinition = null;\n\n\t\tfor ( const definition of this._toolbarDefinitions.values() ) {\n\t\t\tconst relatedElement = definition.getRelatedElement( this.editor.editing.view.document.selection );\n\n\t\t\tif ( !this.isEnabled || !relatedElement ) {\n\t\t\t\tif ( this._isToolbarInBalloon( definition ) ) {\n\t\t\t\t\tthis._hideToolbar( definition );\n\t\t\t\t}\n\t\t\t} else if ( !this.editor.ui.focusTracker.isFocused ) {\n\t\t\t\tif ( this._isToolbarVisible( definition ) ) {\n\t\t\t\t\tthis._hideToolbar( definition );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst relatedElementDepth = relatedElement.getAncestors().length;\n\n\t\t\t\t// Many toolbars can express willingness to be displayed but they do not know about\n\t\t\t\t// each other. Figure out which toolbar is deepest in the view tree to decide which\n\t\t\t\t// should be displayed. For instance, if a selected image is inside a table cell, display\n\t\t\t\t// the ImageToolbar rather than the TableToolbar (#60).\n\t\t\t\tif ( relatedElementDepth > maxRelatedElementDepth ) {\n\t\t\t\t\tmaxRelatedElementDepth = relatedElementDepth;\n\t\t\t\t\tdeepestRelatedElement = relatedElement;\n\t\t\t\t\tdeepestToolbarDefinition = definition;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( deepestToolbarDefinition ) {\n\t\t\tthis._showToolbar( deepestToolbarDefinition, deepestRelatedElement! );\n\t\t}\n\t}\n\n\t/**\n\t * Hides the given toolbar.\n\t *\n\t * @private\n\t * @param {module:widget/widgettoolbarrepository~WidgetRepositoryToolbarDefinition} toolbarDefinition\n\t */\n\tprivate _hideToolbar( toolbarDefinition: WidgetRepositoryToolbarDefinition ) {\n\t\tthis._balloon.remove( toolbarDefinition.view );\n\t\tthis.stopListening( this._balloon, 'change:visibleView' );\n\t}\n\n\t/**\n\t * Shows up the toolbar if the toolbar is not visible.\n\t * Otherwise, repositions the toolbar's balloon when toolbar's view is the most top view in balloon stack.\n\t *\n\t * It might happen here that the toolbar's view is under another view. Then do nothing as the other toolbar view\n\t * should be still visible after the {@link module:core/editor/editorui~EditorUI#event:update}.\n\t *\n\t * @private\n\t * @param {module:widget/widgettoolbarrepository~WidgetRepositoryToolbarDefinition} toolbarDefinition\n\t * @param {module:engine/view/element~Element} relatedElement\n\t */\n\tprivate _showToolbar( toolbarDefinition: WidgetRepositoryToolbarDefinition, relatedElement: ViewElement ) {\n\t\tif ( this._isToolbarVisible( toolbarDefinition ) ) {\n\t\t\trepositionContextualBalloon( this.editor, relatedElement );\n\t\t} else if ( !this._isToolbarInBalloon( toolbarDefinition ) ) {\n\t\t\tthis._balloon.add( {\n\t\t\t\tview: toolbarDefinition.view,\n\t\t\t\tposition: getBalloonPositionData( this.editor, relatedElement ),\n\t\t\t\tballoonClassName: toolbarDefinition.balloonClassName\n\t\t\t} );\n\n\t\t\t// Update toolbar position each time stack with toolbar view is switched to visible.\n\t\t\t// This is in a case target element has changed when toolbar was in invisible stack\n\t\t\t// e.g. target image was wrapped by a block quote.\n\t\t\t// See https://github.com/ckeditor/ckeditor5-widget/issues/92.\n\t\t\tthis.listenTo<ObservableChangeEvent>( this._balloon, 'change:visibleView', () => {\n\t\t\t\tfor ( const definition of this._toolbarDefinitions.values() ) {\n\t\t\t\t\tif ( this._isToolbarVisible( definition ) ) {\n\t\t\t\t\t\tconst relatedElement = definition.getRelatedElement( this.editor.editing.view.document.selection );\n\t\t\t\t\t\trepositionContextualBalloon( this.editor, relatedElement! );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * @private\n\t * @param {Object} toolbar\n\t * @returns {Boolean}\n\t */\n\tprivate _isToolbarVisible( toolbar: WidgetRepositoryToolbarDefinition ) {\n\t\treturn this._balloon.visibleView === toolbar.view;\n\t}\n\n\t/**\n\t * @private\n\t * @param {Object} toolbar\n\t * @returns {Boolean}\n\t */\n\tprivate _isToolbarInBalloon( toolbar: WidgetRepositoryToolbarDefinition ) {\n\t\treturn this._balloon.hasView( toolbar.view );\n\t}\n}\n\nfunction repositionContextualBalloon( editor: Editor, relatedElement: ViewElement ) {\n\tconst balloon = editor.plugins.get( 'ContextualBalloon' );\n\tconst position = getBalloonPositionData( editor, relatedElement );\n\n\tballoon.updatePosition( position );\n}\n\nfunction getBalloonPositionData( editor: Editor, relatedElement: ViewElement ) {\n\tconst editingView = editor.editing.view;\n\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\n\treturn {\n\t\ttarget: editingView.domConverter.mapViewToDom( relatedElement ) as RectSource | undefined,\n\t\tpositions: [\n\t\t\tdefaultPositions.northArrowSouth,\n\t\t\tdefaultPositions.northArrowSouthWest,\n\t\t\tdefaultPositions.northArrowSouthEast,\n\t\t\tdefaultPositions.southArrowNorth,\n\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\tdefaultPositions.viewportStickyNorth\n\t\t]\n\t};\n}\n\nfunction isWidgetSelected( selection: ViewDocumentSelection ) {\n\tconst viewElement = selection.getSelectedElement();\n\n\treturn !!( viewElement && isWidget( viewElement ) );\n}\n\n/**\n * The toolbar definition object used by the toolbar repository to manage toolbars.\n * It contains information necessary to display the toolbar in the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} and\n * update it during its life (display) cycle.\n *\n * @typedef {Object} module:widget/widgettoolbarrepository~WidgetRepositoryToolbarDefinition\n *\n * @property {module:ui/view~View} view The UI view of the toolbar.\n * @property {Function} getRelatedElement A function that returns an engine {@link module:engine/view/view~View}\n * element the toolbar is to be attached to. For instance, an image widget or a table widget (or `null` when\n * there is no such element). The function accepts an instance of {@link module:engine/view/selection~Selection}.\n * @property {String} balloonClassName CSS class for the widget balloon when a toolbar is displayed.\n */\ninterface WidgetRepositoryToolbarDefinition {\n\tview: View;\n\tgetRelatedElement: ( selection: ViewDocumentSelection ) => ViewElement | null | undefined;\n\tballoonClassName: string;\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ WidgetToolbarRepository.pluginName ]: WidgetToolbarRepository;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize/resizerstate\n */\n\nimport { ObservableMixin, Rect } from '@ckeditor/ckeditor5-utils';\n\nimport type { ResizerOptions } from '../widgetresize';\n\n/**\n * Stores the internal state of a single resizable object.\n *\n */\nexport default class ResizeState extends ObservableMixin() {\n\tdeclare public activeHandlePosition: string | null;\n\tdeclare public proposedWidthPercents: number | null;\n\tdeclare public proposedWidth: number | null;\n\tdeclare public proposedHeight: number | null;\n\tdeclare public proposedHandleHostWidth: number | null;\n\tdeclare public proposedHandleHostHeight: number | null;\n\n\t/**\n\t * @internal\n\t */\n\tpublic _referenceCoordinates: { x: number; y: number } | null;\n\n\tprivate readonly _options: ResizerOptions;\n\tprivate _originalWidth?: number;\n\tprivate _originalHeight?: number;\n\tprivate _originalWidthPercents?: number;\n\tprivate _aspectRatio?: number;\n\n\t/**\n\t * @param {module:widget/widgetresize~ResizerOptions} options Resizer options.\n\t */\n\tconstructor( options: ResizerOptions ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * The original width (pixels) of the resized object when the resize process was started.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} #originalWidth\n\t\t */\n\n\t\t/**\n\t\t * The original height (pixels) of the resized object when the resize process was started.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} #originalHeight\n\t\t */\n\n\t\t/**\n\t\t * The original width (percents) of the resized object when the resize process was started.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} #originalWidthPercents\n\t\t */\n\n\t\t/**\n\t\t * The position of the handle that initiated the resizing. E.g. `\"top-left\"`, `\"bottom-right\"` etc. or `null`\n\t\t * if unknown.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {String|null} #activeHandlePosition\n\t\t */\n\t\tthis.set( 'activeHandlePosition', null );\n\n\t\t/**\n\t\t * The width (percents) proposed, but not committed yet, in the current resize process.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number|null} #proposedWidthPercents\n\t\t */\n\t\tthis.set( 'proposedWidthPercents', null );\n\n\t\t/**\n\t\t * The width (pixels) proposed, but not committed yet, in the current resize process.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number|null} #proposedWidthPixels\n\t\t */\n\t\tthis.set( 'proposedWidth', null );\n\n\t\t/**\n\t\t * The height (pixels) proposed, but not committed yet, in the current resize process.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Number|null} #proposedHeightPixels\n\t\t */\n\t\tthis.set( 'proposedHeight', null );\n\n\t\tthis.set( 'proposedHandleHostWidth', null );\n\t\tthis.set( 'proposedHandleHostHeight', null );\n\n\t\t/**\n\t\t * A width to height ratio of the resized image.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number} #aspectRatio\n\t\t */\n\n\t\t/**\n\t\t * @private\n\t\t * @type {module:widget/widgetresize~ResizerOptions}\n\t\t */\n\t\tthis._options = options;\n\n\t\t/**\n\t\t * The reference point of the resizer where the dragging started. It is used to measure the distance the user cursor\n\t\t * traveled, so how much the image should be enlarged.\n\t\t * This information is only known after the DOM was rendered, so it will be updated later.\n\t\t *\n\t\t * @private\n\t\t * @type {Object}\n\t\t */\n\t\tthis._referenceCoordinates = null;\n\t}\n\n\tpublic get originalWidth(): number | undefined {\n\t\treturn this._originalWidth;\n\t}\n\n\tpublic get originalHeight(): number | undefined {\n\t\treturn this._originalHeight;\n\t}\n\n\tpublic get originalWidthPercents(): number | undefined {\n\t\treturn this._originalWidthPercents;\n\t}\n\n\tpublic get aspectRatio(): number | undefined {\n\t\treturn this._aspectRatio;\n\t}\n\n\t/**\n\t *\n\t * @param {HTMLElement} domResizeHandle The handle used to calculate the reference point.\n\t * @param {HTMLElement} domHandleHost\n\t * @param {HTMLElement} domResizeHost\n\t */\n\tpublic begin( domResizeHandle: HTMLElement, domHandleHost: HTMLElement, domResizeHost: HTMLElement ): void {\n\t\tconst clientRect = new Rect( domHandleHost );\n\n\t\tthis.activeHandlePosition = getHandlePosition( domResizeHandle )!;\n\n\t\tthis._referenceCoordinates = getAbsoluteBoundaryPoint( domHandleHost, getOppositePosition( this.activeHandlePosition ) );\n\n\t\tthis._originalWidth = clientRect.width;\n\t\tthis._originalHeight = clientRect.height;\n\n\t\tthis._aspectRatio = clientRect.width / clientRect.height;\n\n\t\tconst widthStyle = domResizeHost.style.width;\n\n\t\tif ( widthStyle && widthStyle.match( /^\\d+(\\.\\d*)?%$/ ) ) {\n\t\t\tthis._originalWidthPercents = parseFloat( widthStyle );\n\t\t} else {\n\t\t\tthis._originalWidthPercents = calculateHostPercentageWidth( domResizeHost, clientRect );\n\t\t}\n\t}\n\n\tpublic update( newSize: {\n\t\twidth: number;\n\t\theight: number;\n\t\twidthPercents: number;\n\t\thandleHostWidth: number;\n\t\thandleHostHeight: number;\n\t} ): void {\n\t\tthis.proposedWidth = newSize.width;\n\t\tthis.proposedHeight = newSize.height;\n\t\tthis.proposedWidthPercents = newSize.widthPercents;\n\n\t\tthis.proposedHandleHostWidth = newSize.handleHostWidth;\n\t\tthis.proposedHandleHostHeight = newSize.handleHostHeight;\n\t}\n}\n\n// Calculates a relative width of a `domResizeHost` compared to it's parent in percents.\n//\n// @private\n// @param {HTMLElement} domResizeHost\n// @param {module:utils/dom/rect~Rect} resizeHostRect\n// @returns {Number}\nfunction calculateHostPercentageWidth( domResizeHost: HTMLElement, resizeHostRect: Rect ) {\n\tconst domResizeHostParent = domResizeHost.parentElement;\n\t// Need to use computed style as it properly excludes parent's paddings from the returned value.\n\tconst parentWidth = parseFloat( domResizeHostParent!.ownerDocument.defaultView!.getComputedStyle( domResizeHostParent! ).width );\n\n\treturn resizeHostRect.width / parentWidth * 100;\n}\n\n// Returns coordinates of the top-left corner of an element, relative to the document's top-left corner.\n//\n// @private\n// @param {HTMLElement} element\n// @param {String} resizerPosition The position of the resize handle, e.g. `\"top-left\"`, `\"bottom-right\"`.\n// @returns {Object} return\n// @returns {Number} return.x\n// @returns {Number} return.y\nfunction getAbsoluteBoundaryPoint( element: HTMLElement, resizerPosition: string ) {\n\tconst elementRect = new Rect( element );\n\tconst positionParts = resizerPosition.split( '-' );\n\tconst ret = {\n\t\tx: positionParts[ 1 ] == 'right' ? elementRect.right : elementRect.left,\n\t\ty: positionParts[ 0 ] == 'bottom' ? elementRect.bottom : elementRect.top\n\t};\n\n\tret.x += element.ownerDocument.defaultView!.scrollX;\n\tret.y += element.ownerDocument.defaultView!.scrollY;\n\n\treturn ret;\n}\n\n// @private\n// @param {String} resizerPosition The expected resizer position, like `\"top-left\"`, `\"bottom-right\"`.\n// @returns {String} A prefixed HTML class name for the resizer element.\nfunction getResizerHandleClass( resizerPosition: string ) {\n\treturn `ck-widget__resizer__handle-${ resizerPosition }`;\n}\n\n// Determines the position of a given resize handle.\n//\n// @private\n// @param {HTMLElement} domHandle Handle used to calculate the reference point.\n// @returns {String|undefined} Returns a string like `\"top-left\"` or `undefined` if not matched.\nfunction getHandlePosition( domHandle: HTMLElement ) {\n\tconst resizerPositions = [ 'top-left', 'top-right', 'bottom-right', 'bottom-left' ];\n\n\tfor ( const position of resizerPositions ) {\n\t\tif ( domHandle.classList.contains( getResizerHandleClass( position ) ) ) {\n\t\t\treturn position;\n\t\t}\n\t}\n}\n\n// @private\n// @param {String} position Like `\"top-left\"`.\n// @returns {String} Inverted `position`, e.g. it returns `\"bottom-right\"` if `\"top-left\"` was given as `position`.\nfunction getOppositePosition( position: string ) {\n\tconst parts = position.split( '-' );\n\tconst replacements: Record<string, string> = {\n\t\ttop: 'bottom',\n\t\tbottom: 'top',\n\t\tleft: 'right',\n\t\tright: 'left'\n\t};\n\n\treturn `${ replacements[ parts[ 0 ] ] }-${ replacements[ parts[ 1 ] ] }`;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize/sizeview\n */\n\nimport { View } from '@ckeditor/ckeditor5-ui';\nimport type { ResizerOptions } from '../widgetresize';\nimport type ResizeState from './resizerstate';\n\n/**\n * A view displaying the proposed new element size during the resizing.\n *\n * @protected\n * @extends {module:ui/view~View}\n */\nexport default class SizeView extends View {\n\t/**\n\t * @internal\n\t * @readonly\n\t */\n\tdeclare public _isVisible: boolean;\n\n\t/**\n\t * @internal\n\t * @readonly\n\t */\n\tdeclare public _label: string;\n\n\t/**\n\t * @internal\n\t * @readonly\n\t */\n\tdeclare public _viewPosition: string;\n\n\tconstructor() {\n\t\tsuper();\n\n\t\t/**\n\t\t * The visibility of the view defined based on the existence of the host proposed dimensions.\n\t\t *\n\t\t * @private\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #_isVisible\n\t\t */\n\n\t\t/**\n\t\t * The text that will be displayed in the `SizeView` child.\n\t\t * It can be formatted as the pixel values (e.g. 10x20) or the percentage value (e.g. 10%).\n\t\t *\n\t\t * @private\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #_label\n\t\t */\n\n\t\t/**\n\t\t * The position of the view defined based on the host size and active handle position.\n\t\t *\n\t\t * @private\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {String} #_viewPosition\n\t\t */\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-size-view',\n\t\t\t\t\tbind.to( '_viewPosition', value => value ? `ck-orientation-${ value }` : '' )\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\tdisplay: bind.if( '_isVisible', 'none', visible => !visible )\n\t\t\t\t}\n\t\t\t},\n\t\t\tchildren: [ {\n\t\t\t\ttext: bind.to( '_label' )\n\t\t\t} ]\n\t\t} );\n\t}\n\n\t/**\n\t * A method used for binding the `SizeView` instance properties to the `ResizeState` instance observable properties.\n\t *\n\t * @protected\n\t * @internal\n\t * @param {module:widget/widgetresize~ResizerOptions} options\n\t * An object defining the resizer options, used for setting the proper size label.\n\t * @param {module:widget/widgetresize/resizerstate~ResizeState} resizeState\n\t * The `ResizeState` class instance, used for keeping the `SizeView` state up to date.\n\t */\n\tpublic _bindToState( options: ResizerOptions, resizeState: ResizeState ): void {\n\t\tthis.bind( '_isVisible' ).to( resizeState, 'proposedWidth', resizeState, 'proposedHeight', ( width, height ) =>\n\t\t\twidth !== null && height !== null );\n\n\t\tthis.bind( '_label' ).to(\n\t\t\tresizeState, 'proposedHandleHostWidth',\n\t\t\tresizeState, 'proposedHandleHostHeight',\n\t\t\tresizeState, 'proposedWidthPercents',\n\t\t\t( width, height, widthPercents ) => {\n\t\t\t\tif ( options.unit === 'px' ) {\n\t\t\t\t\treturn `${ width }×${ height }`;\n\t\t\t\t} else {\n\t\t\t\t\treturn `${ widthPercents }%`;\n\t\t\t\t}\n\t\t\t}\n\t\t);\n\n\t\tthis.bind( '_viewPosition' ).to(\n\t\t\tresizeState, 'activeHandlePosition',\n\t\t\tresizeState, 'proposedHandleHostWidth',\n\t\t\tresizeState, 'proposedHandleHostHeight',\n\t\t\t// If the widget is too small to contain the size label, display the label above.\n\t\t\t( position, width, height ) => width! < 50 || height! < 50 ? 'above-center' : position!\n\t\t);\n\t}\n\n\t/**\n\t * A method used for cleaning up. It removes the bindings and hides the view.\n\t *\n\t * @protected\n\t * @internal\n\t */\n\tpublic _dismiss(): void {\n\t\tthis.unbind();\n\t\tthis._isVisible = false;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize/resizer\n */\n\nimport { Template } from '@ckeditor/ckeditor5-ui';\nimport {\n\tRect,\n\tObservableMixin,\n\tcompareArrays,\n\ttype ObservableChangeEvent,\n\ttype DecoratedMethodEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport ResizeState from './resizerstate';\nimport SizeView from './sizeview';\n\nimport type { ResizerOptions } from '../widgetresize';\nimport type { ViewElement } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Represents a resizer for a single resizable object.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class Resizer extends ObservableMixin() {\n\tdeclare public isEnabled: boolean;\n\tdeclare public isSelected: boolean;\n\n\t/**\n\t * @readonly\n\t */\n\tdeclare public isVisible: boolean;\n\n\tprivate _state!: ResizeState;\n\tprivate _sizeView!: SizeView;\n\tprivate _options: ResizerOptions;\n\tprivate _viewResizerWrapper: ViewElement | null;\n\tprivate _initialViewWidth: string | undefined;\n\n\t/**\n\t * @param {module:widget/widgetresize~ResizerOptions} options Resizer options.\n\t */\n\tconstructor( options: ResizerOptions ) {\n\t\tsuper();\n\n\t\t/**\n\t\t * Stores the state of the resizable host geometry, such as the original width, the currently proposed height, etc.\n\t\t *\n\t\t * Note that a new state is created for each resize transaction.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:widget/widgetresize/resizerstate~ResizerState} #state\n\t\t */\n\n\t\t/**\n\t\t * A view displaying the proposed new element size during the resizing.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @member {module:widget/widgetresize/sizeview~SizeView} #_sizeView\n\t\t */\n\n\t\t/**\n\t\t * Options passed to the {@link #constructor}.\n\t\t *\n\t\t * @private\n\t\t * @type {module:widget/widgetresize~ResizerOptions}\n\t\t */\n\t\tthis._options = options;\n\n\t\t/**\n\t\t * A wrapper that is controlled by the resizer. This is usually a widget element.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/view/element~Element|null}\n\t\t */\n\t\tthis._viewResizerWrapper = null;\n\n\t\t/**\n\t\t * The width of the resized {@link module:widget/widgetresize~ResizerOptions#viewElement viewElement} before the resizing started.\n\t\t *\n\t\t * @private\n\t\t * @member {Number|String|undefined} #_initialViewWidth\n\t\t */\n\n\t\t/**\n\t\t * Flag that indicates whether resizer can be used.\n\t\t *\n\t\t * @observable\n\t\t */\n\t\tthis.set( 'isEnabled', true );\n\n\t\t/**\n\t\t * Flag that indicates that resizer is currently focused.\n\t\t *\n\t\t * @observable\n\t\t */\n\t\tthis.set( 'isSelected', false );\n\n\t\t/**\n\t\t * Flag that indicates whether resizer is rendered (visible on the screen).\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t */\n\t\tthis.bind( 'isVisible' ).to( this, 'isEnabled', this, 'isSelected', ( isEnabled, isSelected ) => isEnabled && isSelected );\n\n\t\tthis.decorate( 'begin' );\n\t\tthis.decorate( 'cancel' );\n\t\tthis.decorate( 'commit' );\n\t\tthis.decorate( 'updateSize' );\n\n\t\tthis.on( 'commit', event => {\n\t\t\t// State might not be initialized yet. In this case, prevent further handling and make sure that the resizer is\n\t\t\t// cleaned up (#5195).\n\t\t\tif ( !this.state.proposedWidth && !this.state.proposedWidthPercents ) {\n\t\t\t\tthis._cleanup();\n\t\t\t\tevent.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\tpublic get state(): ResizeState {\n\t\treturn this._state;\n\t}\n\n\t/**\n\t * Makes resizer visible in the UI.\n\t */\n\tpublic show(): void {\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\twriter.removeClass( 'ck-hidden', this._viewResizerWrapper! );\n\t\t} );\n\t}\n\n\t/**\n\t * Hides resizer in the UI.\n\t */\n\tpublic hide(): void {\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\twriter.addClass( 'ck-hidden', this._viewResizerWrapper! );\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches the resizer to the DOM.\n\t */\n\tpublic attach(): void {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias\n\t\tconst that = this;\n\t\tconst widgetElement = this._options.viewElement;\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\tconst viewResizerWrapper = writer.createUIElement( 'div', {\n\t\t\t\tclass: 'ck ck-reset_all ck-widget__resizer'\n\t\t\t}, function( domDocument ) {\n\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\tthat._appendHandles( domElement );\n\t\t\t\tthat._appendSizeUI( domElement );\n\n\t\t\t\treturn domElement;\n\t\t\t} );\n\n\t\t\t// Append the resizer wrapper to the widget's wrapper.\n\t\t\twriter.insert( writer.createPositionAt( widgetElement, 'end' ), viewResizerWrapper );\n\t\t\twriter.addClass( 'ck-widget_with-resizer', widgetElement );\n\n\t\t\tthis._viewResizerWrapper = viewResizerWrapper;\n\n\t\t\tif ( !this.isVisible ) {\n\t\t\t\tthis.hide();\n\t\t\t}\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent>( 'change:isVisible', () => {\n\t\t\tif ( this.isVisible ) {\n\t\t\t\tthis.show();\n\t\t\t\tthis.redraw();\n\t\t\t} else {\n\t\t\t\tthis.hide();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Starts the resizing process.\n\t *\n\t * Creates a new {@link #state} for the current process.\n\t *\n\t * @fires begin\n\t * @param {HTMLElement} domResizeHandle Clicked handle.\n\t */\n\tpublic begin( domResizeHandle: HTMLElement ): void {\n\t\tthis._state = new ResizeState( this._options );\n\n\t\tthis._sizeView._bindToState( this._options, this.state );\n\n\t\tthis._initialViewWidth = this._options.viewElement.getStyle( 'width' );\n\n\t\tthis.state.begin( domResizeHandle, this._getHandleHost(), this._getResizeHost() );\n\t}\n\n\t/**\n\t * Updates the proposed size based on `domEventData`.\n\t *\n\t * @fires updateSize\n\t * @param {Event} domEventData\n\t */\n\tpublic updateSize( domEventData: MouseEvent ): void {\n\t\tconst newSize = this._proposeNewSize( domEventData );\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\tconst unit = this._options.unit || '%';\n\t\t\tconst newWidth = ( unit === '%' ? newSize.widthPercents : newSize.width ) + unit;\n\n\t\t\twriter.setStyle( 'width', newWidth, this._options.viewElement );\n\t\t} );\n\n\t\t// Get an actual image width, and:\n\t\t// * reflect this size to the resize wrapper\n\t\t// * apply this **real** size to the state\n\t\tconst domHandleHost = this._getHandleHost();\n\t\tconst domHandleHostRect = new Rect( domHandleHost );\n\n\t\tconst handleHostWidth = Math.round( domHandleHostRect.width );\n\t\tconst handleHostHeight = Math.round( domHandleHostRect.height );\n\n\t\t// Handle max-width limitation.\n\t\tconst domResizeHostRect = new Rect( domHandleHost );\n\n\t\tnewSize.width = Math.round( domResizeHostRect.width );\n\t\tnewSize.height = Math.round( domResizeHostRect.height );\n\n\t\tthis.redraw( domHandleHostRect );\n\n\t\tthis.state.update( {\n\t\t\t...newSize,\n\t\t\thandleHostWidth,\n\t\t\thandleHostHeight\n\t\t} );\n\t}\n\n\t/**\n\t * Applies the geometry proposed with the resizer.\n\t *\n\t * @fires commit\n\t */\n\tpublic commit(): void {\n\t\tconst unit = this._options.unit || '%';\n\t\tconst newValue = ( unit === '%' ? this.state.proposedWidthPercents : this.state.proposedWidth ) + unit;\n\n\t\t// Both cleanup and onCommit callback are very likely to make view changes. Ensure that it is made in a single step.\n\t\tthis._options.editor.editing.view.change( () => {\n\t\t\tthis._cleanup();\n\t\t\tthis._options.onCommit( newValue );\n\t\t} );\n\t}\n\n\t/**\n\t * Cancels and rejects the proposed resize dimensions, hiding the UI.\n\t *\n\t * @fires cancel\n\t */\n\tpublic cancel(): void {\n\t\tthis._cleanup();\n\t}\n\n\t/**\n\t * Destroys the resizer.\n\t */\n\tpublic destroy(): void {\n\t\tthis.cancel();\n\t}\n\n\t/**\n\t * Redraws the resizer.\n\t *\n\t * @param {module:utils/dom/rect~Rect} [handleHostRect] Handle host rectangle might be given to improve performance.\n\t */\n\tpublic redraw( handleHostRect?: Rect ): void {\n\t\tconst domWrapper = this._domResizerWrapper;\n\n\t\t// Refresh only if resizer exists in the DOM.\n\t\tif ( !existsInDom( domWrapper ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst widgetWrapper = domWrapper!.parentElement;\n\t\tconst handleHost = this._getHandleHost();\n\t\tconst resizerWrapper = this._viewResizerWrapper!;\n\t\tconst currentDimensions = [\n\t\t\tresizerWrapper.getStyle( 'width' ),\n\t\t\tresizerWrapper.getStyle( 'height' ),\n\t\t\tresizerWrapper.getStyle( 'left' ),\n\t\t\tresizerWrapper.getStyle( 'top' )\n\t\t];\n\t\tlet newDimensions: Array<string | undefined>;\n\n\t\tif ( widgetWrapper!.isSameNode( handleHost ) ) {\n\t\t\tconst clientRect = handleHostRect || new Rect( handleHost );\n\n\t\t\tnewDimensions = [\n\t\t\t\tclientRect.width + 'px',\n\t\t\t\tclientRect.height + 'px',\n\t\t\t\tundefined,\n\t\t\t\tundefined\n\t\t\t];\n\t\t}\n\t\t// In case a resizing host is not a widget wrapper, we need to compensate\n\t\t// for any additional offsets the resize host might have. E.g. wrapper padding\n\t\t// or simply another editable. By doing that the border and resizers are shown\n\t\t// only around the resize host.\n\t\telse {\n\t\t\tnewDimensions = [\n\t\t\t\thandleHost.offsetWidth + 'px',\n\t\t\t\thandleHost.offsetHeight + 'px',\n\t\t\t\thandleHost.offsetLeft + 'px',\n\t\t\t\thandleHost.offsetTop + 'px'\n\t\t\t];\n\t\t}\n\n\t\t// Make changes to the view only if the resizer should actually get new dimensions.\n\t\t// Otherwise, if View#change() was always called, this would cause EditorUI#update\n\t\t// loops because the WidgetResize plugin listens to EditorUI#update and updates\n\t\t// the resizer.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/7633\n\t\tif ( compareArrays( currentDimensions, newDimensions ) !== 'same' ) {\n\t\t\tthis._options.editor.editing.view.change( writer => {\n\t\t\t\twriter.setStyle( {\n\t\t\t\t\twidth: newDimensions[ 0 ]!,\n\t\t\t\t\theight: newDimensions[ 1 ]!,\n\t\t\t\t\tleft: newDimensions[ 2 ]!,\n\t\t\t\t\ttop: newDimensions[ 3 ]!\n\t\t\t\t}, resizerWrapper );\n\t\t\t} );\n\t\t}\n\t}\n\n\tpublic containsHandle( domElement: HTMLElement ): boolean {\n\t\treturn this._domResizerWrapper!.contains( domElement );\n\t}\n\n\tpublic static isResizeHandle( domElement: HTMLElement ): boolean {\n\t\treturn domElement.classList.contains( 'ck-widget__resizer__handle' );\n\t}\n\n\t/**\n\t * Cleans up the context state.\n\t *\n\t * @protected\n\t */\n\tprivate _cleanup(): void {\n\t\tthis._sizeView._dismiss();\n\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\twriter.setStyle( 'width', this._initialViewWidth!, this._options.viewElement );\n\t\t} );\n\t}\n\n\t/**\n\t * Calculates the proposed size as the resize handles are dragged.\n\t *\n\t * @private\n\t * @param {Event} domEventData Event data that caused the size update request. It should be used to calculate the proposed size.\n\t * @returns {Object} return\n\t * @returns {Number} return.width Proposed width.\n\t * @returns {Number} return.height Proposed height.\n\t */\n\tprivate _proposeNewSize( domEventData: MouseEvent ) {\n\t\tconst state = this.state;\n\t\tconst currentCoordinates = extractCoordinates( domEventData );\n\t\tconst isCentered = this._options.isCentered ? this._options.isCentered( this ) : true;\n\n\t\t// Enlargement defines how much the resize host has changed in a given axis. Naturally it could be a negative number\n\t\t// meaning that it has been shrunk.\n\t\t//\n\t\t// +----------------+--+\n\t\t// |                |  |\n\t\t// |       img      |  |\n\t\t// |  /handle host  |  |\n\t\t// +----------------+  | ^\n\t\t// |                   | | - enlarge y\n\t\t// +-------------------+ v\n\t\t// \t\t\t\t\t<-->\n\t\t// \t\t\t\t\t enlarge x\n\t\tconst enlargement = {\n\t\t\tx: state._referenceCoordinates!.x - ( currentCoordinates.x + state.originalWidth! ),\n\t\t\ty: ( currentCoordinates.y - state.originalHeight! ) - state._referenceCoordinates!.y\n\t\t};\n\n\t\tif ( isCentered && state.activeHandlePosition!.endsWith( '-right' ) ) {\n\t\t\tenlargement.x = currentCoordinates.x - ( state._referenceCoordinates!.x + state.originalWidth! );\n\t\t}\n\n\t\t// Objects needs to be resized twice as much in horizontal axis if centered, since enlargement is counted from\n\t\t// one resized corner to your cursor. It needs to be duplicated to compensate for the other side too.\n\t\tif ( isCentered ) {\n\t\t\tenlargement.x *= 2;\n\t\t}\n\n\t\t// const resizeHost = this._getResizeHost();\n\n\t\t// The size proposed by the user. It does not consider the aspect ratio.\n\t\tlet width = Math.abs( state.originalWidth! + enlargement.x );\n\t\tlet height = Math.abs( state.originalHeight! + enlargement.y );\n\n\t\t// Dominant determination must take the ratio into account.\n\t\tconst dominant = width / state.aspectRatio! > height ? 'width' : 'height';\n\n\t\tif ( dominant == 'width' ) {\n\t\t\theight = width / state.aspectRatio!;\n\t\t} else {\n\t\t\twidth = height * state.aspectRatio!;\n\t\t}\n\n\t\treturn {\n\t\t\twidth: Math.round( width ),\n\t\t\theight: Math.round( height ),\n\t\t\twidthPercents: Math.min( Math.round( state.originalWidthPercents! / state.originalWidth! * width * 100 ) / 100, 100 )\n\t\t};\n\t}\n\n\t/**\n\t * Obtains the resize host.\n\t *\n\t * Resize host is an object that receives dimensions which are the result of resizing.\n\t *\n\t * @protected\n\t * @returns {HTMLElement}\n\t */\n\tprivate _getResizeHost(): HTMLElement {\n\t\tconst widgetWrapper = this._domResizerWrapper!.parentElement;\n\n\t\treturn this._options.getResizeHost( widgetWrapper! );\n\t}\n\n\t/**\n\t * Obtains the handle host.\n\t *\n\t * Handle host is an object that the handles are aligned to.\n\t *\n\t * Handle host will not always be an entire widget itself. Take an image as an example. The image widget\n\t * contains an image and a caption. Only the image should be surrounded with handles.\n\t *\n\t * @protected\n\t * @returns {HTMLElement}\n\t */\n\tprivate _getHandleHost(): HTMLElement {\n\t\tconst widgetWrapper = this._domResizerWrapper!.parentElement;\n\n\t\treturn this._options.getHandleHost( widgetWrapper! );\n\t}\n\n\t/**\n\t * DOM container of the entire resize UI.\n\t *\n\t * Note that this property will have a value only after the element bound with the resizer is rendered\n\t * (otherwise `null`).\n\t *\n\t * @private\n\t * @member {HTMLElement|null}\n\t */\n\tprivate get _domResizerWrapper(): HTMLElement | null {\n\t\treturn this._options.editor.editing.view.domConverter.mapViewToDom( this._viewResizerWrapper! ) as any;\n\t}\n\n\t/**\n\t * Renders the resize handles in the DOM.\n\t *\n\t * @private\n\t * @param {HTMLElement} domElement The resizer wrapper.\n\t */\n\tprivate _appendHandles( domElement: HTMLElement ) {\n\t\tconst resizerPositions = [ 'top-left', 'top-right', 'bottom-right', 'bottom-left' ];\n\n\t\tfor ( const currentPosition of resizerPositions ) {\n\t\t\tdomElement.appendChild( ( new Template( {\n\t\t\t\ttag: 'div',\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: `ck-widget__resizer__handle ${ getResizerClass( currentPosition ) }`\n\t\t\t\t}\n\t\t\t} ).render() ) );\n\t\t}\n\t}\n\n\t/**\n\t * Sets up the {@link #_sizeView} property and adds it to the passed `domElement`.\n\t *\n\t * @private\n\t * @param {HTMLElement} domElement\n\t */\n\tprivate _appendSizeUI( domElement: HTMLElement ) {\n\t\tthis._sizeView = new SizeView();\n\n\t\t// Make sure icon#element is rendered before passing to appendChild().\n\t\tthis._sizeView.render();\n\n\t\tdomElement.appendChild( this._sizeView.element! );\n\t}\n\n\t/**\n\t * @event begin\n\t */\n\n\t/**\n\t * @event updateSize\n\t */\n\n\t/**\n\t * @event commit\n\t */\n\n\t/**\n\t * @event cancel\n\t */\n}\n\nexport type ResizerBeginEvent = DecoratedMethodEvent<Resizer, 'begin'>;\nexport type ResizerCancelEvent = DecoratedMethodEvent<Resizer, 'cancel'>;\nexport type ResizerCommitEvent = DecoratedMethodEvent<Resizer, 'commit'>;\nexport type ResizerUpdateSizeEvent = DecoratedMethodEvent<Resizer, 'updateSize'>;\n\n// @private\n// @param {String} resizerPosition Expected resizer position like `\"top-left\"`, `\"bottom-right\"`.\n// @returns {String} A prefixed HTML class name for the resizer element\nfunction getResizerClass( resizerPosition: string ) {\n\treturn `ck-widget__resizer__handle-${ resizerPosition }`;\n}\n\nfunction extractCoordinates( event: MouseEvent ) {\n\treturn {\n\t\tx: event.pageX,\n\t\ty: event.pageY\n\t};\n}\n\nfunction existsInDom( element: Node | DocumentFragment | undefined | null ) {\n\treturn element && element.ownerDocument && element.ownerDocument.contains( element );\n}\n","import debounce from './debounce.js';\nimport isObject from './isObject.js';\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n *  Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n *  Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\nfunction throttle(func, wait, options) {\n  var leading = true,\n      trailing = true;\n\n  if (typeof func != 'function') {\n    throw new TypeError(FUNC_ERROR_TEXT);\n  }\n  if (isObject(options)) {\n    leading = 'leading' in options ? !!options.leading : leading;\n    trailing = 'trailing' in options ? !!options.trailing : trailing;\n  }\n  return debounce(func, wait, {\n    'leading': leading,\n    'maxWait': wait,\n    'trailing': trailing\n  });\n}\n\nexport default throttle;\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./widgetresize.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize\n */\n\nimport Resizer, {\n\ttype ResizerBeginEvent,\n\ttype ResizerCancelEvent,\n\ttype ResizerCommitEvent\n} from './widgetresize/resizer';\n\nimport type WidgetToolbarRepository from './widgettoolbarrepository';\n\nimport {\n\tPlugin,\n\ttype Editor,\n\ttype EditorUIUpdateEvent\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tMouseObserver,\n\ttype DocumentChangeEvent,\n\ttype DomEventData,\n\ttype Element,\n\ttype ViewContainerElement,\n\ttype ViewDocumentMouseEvent,\n\ttype ViewSelectionChangeEvent\n} from '@ckeditor/ckeditor5-engine';\n\nimport {\n\tDomEmitterMixin,\n\tglobal,\n\ttype DomEmitter,\n\ttype EventInfo\n} from '@ckeditor/ckeditor5-utils';\n\nimport { throttle, type DebouncedFunc } from 'lodash-es';\n\nimport '../theme/widgetresize.css';\n\n/**\n * The widget resize feature plugin.\n *\n * Use the {@link module:widget/widgetresize~WidgetResize#attachTo} method to create a resizer for the specified widget.\n *\n * @extends module:core/plugin~Plugin\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class WidgetResize extends Plugin {\n\tdeclare public selectedResizer: Resizer | null;\n\n\t/**\n\t * @internal\n\t */\n\tdeclare public _activeResizer: Resizer | null;\n\n\tprivate _resizers!: Map<ViewContainerElement, Resizer>;\n\tprivate _observer!: DomEmitter;\n\tprivate _redrawSelectedResizerThrottled!: DebouncedFunc<() => void>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'WidgetResize' {\n\t\treturn 'WidgetResize';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editing = this.editor.editing;\n\t\tconst domDocument = global.window.document;\n\n\t\t/**\n\t\t * The currently selected resizer.\n\t\t *\n\t\t * @observable\n\t\t * @member {module:widget/widgetresize/resizer~Resizer|null} #selectedResizer\n\t\t */\n\t\tthis.set( 'selectedResizer', null );\n\n\t\t/**\n\t\t * References an active resizer.\n\t\t *\n\t\t * Active resizer means a resizer which handle is actively used by the end user.\n\t\t *\n\t\t * @protected\n\t\t * @observable\n\t\t * @member {module:widget/widgetresize/resizer~Resizer|null} #_activeResizer\n\t\t */\n\t\tthis.set( '_activeResizer', null );\n\n\t\t/**\n\t\t * A map of resizers created using this plugin instance.\n\t\t *\n\t\t * @protected\n\t\t * @type {Map.<module:engine/view/containerelement~ContainerElement, module:widget/widgetresize/resizer~Resizer>}\n\t\t */\n\t\tthis._resizers = new Map();\n\n\t\tediting.view.addObserver( MouseObserver );\n\n\t\tthis._observer = new ( DomEmitterMixin() )();\n\n\t\tthis.listenTo<ViewDocumentMouseEvent>(\n\t\t\tediting.view.document,\n\t\t\t'mousedown',\n\t\t\tthis._mouseDownListener.bind( this ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\n\t\tthis._observer.listenTo( domDocument, 'mousemove', this._mouseMoveListener.bind( this ) );\n\t\tthis._observer.listenTo( domDocument, 'mouseup', this._mouseUpListener.bind( this ) );\n\n\t\tthis._redrawSelectedResizerThrottled = throttle( () => this.redrawSelectedResizer(), 200 );\n\n\t\t// Redrawing on any change of the UI of the editor (including content changes).\n\t\tthis.editor.ui.on<EditorUIUpdateEvent>( 'update', this._redrawSelectedResizerThrottled );\n\n\t\t// Remove view widget-resizer mappings for widgets that have been removed from the document.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/10156\n\t\t// https://github.com/ckeditor/ckeditor5/issues/10266\n\t\tthis.editor.model.document.on<DocumentChangeEvent>( 'change', () => {\n\t\t\tfor ( const [ viewElement, resizer ] of this._resizers ) {\n\t\t\t\tif ( !viewElement.isAttached() ) {\n\t\t\t\t\tthis._resizers.delete( viewElement );\n\t\t\t\t\tresizer.destroy();\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Resizers need to be redrawn upon window resize, because new window might shrink resize host.\n\t\tthis._observer.listenTo( global.window, 'resize', this._redrawSelectedResizerThrottled );\n\n\t\tconst viewSelection = this.editor.editing.view.document.selection;\n\n\t\tviewSelection.on<ViewSelectionChangeEvent>( 'change', () => {\n\t\t\tconst selectedElement = viewSelection.getSelectedElement() as ViewContainerElement;\n\n\t\t\tconst resizer = this.getResizerByViewElement( selectedElement ) || null;\n\t\t\tif ( resizer ) {\n\t\t\t\tthis.select( resizer );\n\t\t\t} else {\n\t\t\t\tthis.deselect();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Redraws the selected resizer if there is any selected resizer and if it is visible.\n\t */\n\tpublic redrawSelectedResizer(): void {\n\t\tif ( this.selectedResizer && this.selectedResizer.isVisible ) {\n\t\t\tthis.selectedResizer.redraw();\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._observer.stopListening();\n\n\t\tfor ( const resizer of this._resizers.values() ) {\n\t\t\tresizer.destroy();\n\t\t}\n\n\t\tthis._redrawSelectedResizerThrottled.cancel();\n\t}\n\n\t/**\n\t * Marks resizer as selected.\n\t *\n\t * @param {module:widget/widgetresize/resizer~Resizer} resizer\n\t */\n\tpublic select( resizer: Resizer ): void {\n\t\tthis.deselect();\n\t\tthis.selectedResizer = resizer;\n\t\tthis.selectedResizer.isSelected = true;\n\t}\n\n\t/**\n\t * Deselects currently set resizer.\n\t */\n\tpublic deselect(): void {\n\t\tif ( this.selectedResizer ) {\n\t\t\tthis.selectedResizer.isSelected = false;\n\t\t}\n\n\t\tthis.selectedResizer = null;\n\t}\n\n\t/**\n\t * @param {module:widget/widgetresize~ResizerOptions} [options] Resizer options.\n\t * @returns {module:widget/widgetresize/resizer~Resizer}\n\t */\n\tpublic attachTo( options: ResizerOptions ): Resizer {\n\t\tconst resizer = new Resizer( options );\n\t\tconst plugins = this.editor.plugins;\n\n\t\tresizer.attach();\n\n\t\tif ( plugins.has( 'WidgetToolbarRepository' ) ) {\n\t\t\t// Hiding widget toolbar to improve the performance\n\t\t\t// (https://github.com/ckeditor/ckeditor5-widget/pull/112#issuecomment-564528765).\n\t\t\tconst widgetToolbarRepository: WidgetToolbarRepository = plugins.get( 'WidgetToolbarRepository' );\n\n\t\t\tresizer.on<ResizerBeginEvent>( 'begin', () => {\n\t\t\t\twidgetToolbarRepository.forceDisabled( 'resize' );\n\t\t\t}, { priority: 'lowest' } );\n\n\t\t\tresizer.on<ResizerCancelEvent>( 'cancel', () => {\n\t\t\t\twidgetToolbarRepository.clearForceDisabled( 'resize' );\n\t\t\t}, { priority: 'highest' } );\n\n\t\t\tresizer.on<ResizerCommitEvent>( 'commit', () => {\n\t\t\t\twidgetToolbarRepository.clearForceDisabled( 'resize' );\n\t\t\t}, { priority: 'highest' } );\n\t\t}\n\n\t\tthis._resizers.set( options.viewElement, resizer );\n\n\t\tconst viewSelection = this.editor.editing.view.document.selection;\n\t\tconst selectedElement = viewSelection.getSelectedElement() as ViewContainerElement;\n\n\t\t// If the element the resizer is created for is currently focused, it should become visible.\n\t\tif ( this.getResizerByViewElement( selectedElement ) == resizer ) {\n\t\t\tthis.select( resizer );\n\t\t}\n\n\t\treturn resizer;\n\t}\n\n\t/**\n\t * Returns a resizer created for a given view element (widget element).\n\t *\n\t * @param {module:engine/view/containerelement~ContainerElement} viewElement View element associated with the resizer.\n\t * @returns {module:widget/widgetresize/resizer~Resizer|undefined}\n\t */\n\tpublic getResizerByViewElement( viewElement: ViewContainerElement ): Resizer | undefined {\n\t\treturn this._resizers.get( viewElement );\n\t}\n\n\t/**\n\t * Returns a resizer that contains a given resize handle.\n\t *\n\t * @protected\n\t * @param {HTMLElement} domResizeHandle\n\t * @returns {module:widget/widgetresize/resizer~Resizer}\n\t */\n\tprivate _getResizerByHandle( domResizeHandle: HTMLElement ): Resizer | undefined {\n\t\tfor ( const resizer of this._resizers.values() ) {\n\t\t\tif ( resizer.containsHandle( domResizeHandle ) ) {\n\t\t\t\treturn resizer;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @protected\n\t * @param {module:utils/eventinfo~EventInfo} event\n\t * @param {Event} domEventData Native DOM event.\n\t */\n\tprivate _mouseDownListener( event: EventInfo, domEventData: DomEventData ) {\n\t\tconst resizeHandle = domEventData.domTarget;\n\n\t\tif ( !Resizer.isResizeHandle( resizeHandle ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._activeResizer = this._getResizerByHandle( resizeHandle ) || null;\n\n\t\tif ( this._activeResizer ) {\n\t\t\tthis._activeResizer.begin( resizeHandle );\n\n\t\t\t// Do not call other events when resizing. See: #6755.\n\t\t\tevent.stop();\n\t\t\tdomEventData.preventDefault();\n\t\t}\n\t}\n\n\t/**\n\t * @protected\n\t * @param {module:utils/eventinfo~EventInfo} event\n\t * @param {Event} domEventData Native DOM event.\n\t */\n\tprivate _mouseMoveListener( event: unknown, domEventData: MouseEvent ) {\n\t\tif ( this._activeResizer ) {\n\t\t\tthis._activeResizer.updateSize( domEventData );\n\t\t}\n\t}\n\n\t/**\n\t * @protected\n\t */\n\tprivate _mouseUpListener(): void {\n\t\tif ( this._activeResizer ) {\n\t\t\tthis._activeResizer.commit();\n\t\t\tthis._activeResizer = null;\n\t\t}\n\t}\n}\n\n/**\n * Interface describing a resizer. It allows to specify the resizing host, custom logic for calculating aspect ratio, etc.\n *\n * @interface ResizerOptions\n */\n\n/**\n * Editor instance associated with the resizer.\n *\n * @member {module:core/editor/editor~Editor} module:widget/widgetresize~ResizerOptions#editor\n */\n\n/**\n * @member {module:engine/model/element~Element} module:widget/widgetresize~ResizerOptions#modelElement\n */\n\n/**\n * A view of an element to be resized. Typically it's the main widget's view instance.\n *\n * @member {module:engine/view/containerelement~ContainerElement} module:widget/widgetresize~ResizerOptions#viewElement\n */\n\n/**\n * A callback to be executed once the resizing process is done.\n *\n * It receives a `Number` (`newValue`) as a parameter.\n *\n * For example, {@link module:image/imageresize~ImageResize} uses it to execute the resize image command\n * which puts the new value into the model.\n *\n * ```js\n * {\n *\teditor,\n *\tmodelElement: data.item,\n *\tviewElement: widget,\n *\n *\tonCommit( newValue ) {\n *\t\teditor.execute( 'resizeImage', { width: newValue } );\n *\t}\n * };\n * ```\n *\n *\n * @member {Function} module:widget/widgetresize~ResizerOptions#onCommit\n */\n\n/**\n * @member {Function} module:widget/widgetresize~ResizerOptions#getResizeHost\n */\n\n/**\n * @member {Function} module:widget/widgetresize~ResizerOptions#isCentered\n */\nexport interface ResizerOptions {\n\teditor: Editor;\n\tmodelElement: Element;\n\tviewElement: ViewContainerElement;\n\tunit?: 'px' | '%';\n\tonCommit: ( newValue: string ) => void;\n\tgetResizeHost: ( widgetWrapper: HTMLElement ) => HTMLElement;\n\tgetHandleHost: ( widgetWrapper: HTMLElement ) => HTMLElement;\n\tisCentered?: ( resizer: Resizer ) => boolean;\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ WidgetResize.pluginName ]: WidgetResize;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/imagetextalternativecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The image text alternative command. It is used to change the `alt` attribute of `<imageBlock>` and `<imageInline>` model elements.\n *\n * @extends module:core/command~Command\n */\nexport default class ImageTextAlternativeCommand extends Command {\n\t/**\n\t * The command value: `false` if there is no `alt` attribute, otherwise the value of the `alt` attribute.\n\t *\n\t * @readonly\n\t * @observable\n\t * @member {String|Boolean} #value\n\t */\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = !!element;\n\n\t\tif ( this.isEnabled && element.hasAttribute( 'alt' ) ) {\n\t\t\tthis.value = element.getAttribute( 'alt' );\n\t\t} else {\n\t\t\tthis.value = false;\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} options\n\t * @param {String} options.newValue The new value of the `alt` attribute to set.\n\t */\n\texecute( options ) {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst model = editor.model;\n\t\tconst imageElement = imageUtils.getClosestSelectedImageElement( model.document.selection );\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setAttribute( 'alt', options.newValue, imageElement );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/utils\n */\n\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * Creates a view element representing the inline image.\n *\n *\t\t<span class=\"image-inline\"><img></img></span>\n *\n * Note that `alt` and `src` attributes are converted separately, so they are not included.\n *\n * @protected\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @returns {module:engine/view/containerelement~ContainerElement}\n */\nexport function createInlineImageViewElement( writer ) {\n\treturn writer.createContainerElement( 'span', { class: 'image-inline' },\n\t\twriter.createEmptyElement( 'img' )\n\t);\n}\n\n/**\n * Creates a view element representing the block image.\n *\n *\t\t<figure class=\"image\"><img></img></figure>\n *\n * Note that `alt` and `src` attributes are converted separately, so they are not included.\n *\n * @protected\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer\n * @returns {module:engine/view/containerelement~ContainerElement}\n */\nexport function createBlockImageViewElement( writer ) {\n\treturn writer.createContainerElement( 'figure', { class: 'image' }, [\n\t\twriter.createEmptyElement( 'img' ),\n\t\twriter.createSlot()\n\t] );\n}\n\n/**\n * A function returning a `MatcherPattern` for a particular type of View images.\n *\n * @protected\n * @param {module:core/editor/editor~Editor} editor\n * @param {'imageBlock'|'imageInline'} matchImageType The type of created image.\n * @returns {module:engine/view/matcher~MatcherPattern}\n */\nexport function getImgViewElementMatcher( editor, matchImageType ) {\n\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\tconst areBothImagePluginsLoaded = editor.plugins.has( 'ImageInlineEditing' ) && editor.plugins.has( 'ImageBlockEditing' );\n\n\treturn element => {\n\t\t// Check if the matched view element is an <img>.\n\t\tif ( !imageUtils.isInlineImageView( element ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// If just one of the plugins is loaded (block or inline), it will match all kinds of images.\n\t\tif ( !areBothImagePluginsLoaded ) {\n\t\t\treturn getPositiveMatchPattern( element );\n\t\t}\n\n\t\t// The <img> can be standalone, wrapped in <figure>...</figure> (ImageBlock plugin) or\n\t\t// wrapped in <figure><a>...</a></figure> (LinkImage plugin).\n\t\tconst imageType = element.getStyle( 'display' ) == 'block' || element.findAncestor( imageUtils.isBlockImageView ) ?\n\t\t\t'imageBlock' :\n\t\t\t'imageInline';\n\n\t\tif ( imageType !== matchImageType ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn getPositiveMatchPattern( element );\n\t};\n\n\tfunction getPositiveMatchPattern( element ) {\n\t\tconst pattern = {\n\t\t\tname: true\n\t\t};\n\n\t\t// This will trigger src consumption (See https://github.com/ckeditor/ckeditor5/issues/11530).\n\t\tif ( element.hasAttribute( 'src' ) ) {\n\t\t\tpattern.attributes = [ 'src' ];\n\t\t}\n\n\t\treturn pattern;\n\t}\n}\n\n/**\n * Considering the current model selection, it returns the name of the model image element\n * (`'imageBlock'` or `'imageInline'`) that will make most sense from the UX perspective if a new\n * image was inserted (also: uploaded, dropped, pasted) at that selection.\n *\n * The assumption is that inserting images into empty blocks or on other block widgets should\n * produce block images. Inline images should be inserted in other cases, e.g. in paragraphs\n * that already contain some text.\n *\n * @protected\n * @param {module:engine/model/schema~Schema} schema\n * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n * @returns {'imageBlock'|'imageInline'}\n */\nexport function determineImageTypeForInsertionAtSelection( schema, selection ) {\n\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t// Insert a block image if the selection is not in/on block elements or it's on a block widget.\n\tif ( !firstBlock || schema.isObject( firstBlock ) ) {\n\t\treturn 'imageBlock';\n\t}\n\n\t// A block image should also be inserted into an empty block element\n\t// (that is not an empty list item so the list won't get split).\n\tif ( firstBlock.isEmpty && firstBlock.name != 'listItem' ) {\n\t\treturn 'imageBlock';\n\t}\n\n\t// Otherwise insert an inline image.\n\treturn 'imageInline';\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageutils\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { findOptimalInsertionRange, isWidget, toWidget } from 'ckeditor5/src/widget';\nimport { determineImageTypeForInsertionAtSelection } from './image/utils';\n\n/**\n * A set of helpers related to images.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageUtils';\n\t}\n\n\t/**\n\t * Checks if the provided model element is an `image` or `imageInline`.\n\t *\n\t * @param {module:engine/model/element~Element} modelElement\n\t * @returns {Boolean}\n\t */\n\tisImage( modelElement ) {\n\t\treturn this.isInlineImage( modelElement ) || this.isBlockImage( modelElement );\n\t}\n\n\t/**\n\t * Checks if the provided view element represents an inline image.\n\t *\n\t * Also, see {@link module:image/imageutils~ImageUtils#isImageWidget}.\n\t *\n\t * @param {module:engine/view/element~Element} element\n\t * @returns {Boolean}\n\t */\n\tisInlineImageView( element ) {\n\t\treturn !!element && element.is( 'element', 'img' );\n\t}\n\n\t/**\n\t * Checks if the provided view element represents a block image.\n\t *\n\t * Also, see {@link module:image/imageutils~ImageUtils#isImageWidget}.\n\t *\n\t * @param {module:engine/view/element~Element} element\n\t * @returns {Boolean}\n\t */\n\tisBlockImageView( element ) {\n\t\treturn !!element && element.is( 'element', 'figure' ) && element.hasClass( 'image' );\n\t}\n\n\t/**\n\t * Handles inserting single file. This method unifies image insertion using {@link module:widget/utils~findOptimalInsertionRange}\n\t * method.\n\t *\n\t *\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t *\n\t *\t\timageUtils.insertImage( { src: 'path/to/image.jpg' } );\n\t *\n\t * @param {Object} [attributes={}] Attributes of the inserted image.\n\t * This method filters out the attributes which are disallowed by the {@link module:engine/model/schema~Schema}.\n\t * @param {module:engine/model/selection~Selectable} [selectable] Place to insert the image. If not specified,\n\t * the {@link module:widget/utils~findOptimalInsertionRange} logic will be applied for the block images\n\t * and `model.document.selection` for the inline images.\n\t *\n\t * **Note**: If `selectable` is passed, this helper will not be able to set selection attributes (such as `linkHref`)\n\t * and apply them to the new image. In this case, make sure all selection attributes are passed in `attributes`.\n\t *\n\t * @param {'imageBlock'|'imageInline'} [imageType] Image type of inserted image. If not specified,\n\t * it will be determined automatically depending of editor config or place of the insertion.\n\t * @return {module:engine/view/element~Element|null} The inserted model image element.\n\t */\n\tinsertImage( attributes = {}, selectable = null, imageType = null ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\timageType = determineImageTypeForInsertion( editor, selectable || selection, imageType );\n\n\t\t// Mix declarative attributes with selection attributes because the new image should \"inherit\"\n\t\t// the latter for best UX. For instance, inline images inserted into existing links\n\t\t// should not split them. To do that, they need to have \"linkHref\" inherited from the selection.\n\t\tattributes = {\n\t\t\t...Object.fromEntries( selection.getAttributes() ),\n\t\t\t...attributes\n\t\t};\n\n\t\tfor ( const attributeName in attributes ) {\n\t\t\tif ( !model.schema.checkAttribute( imageType, attributeName ) ) {\n\t\t\t\tdelete attributes[ attributeName ];\n\t\t\t}\n\t\t}\n\n\t\treturn model.change( writer => {\n\t\t\tconst imageElement = writer.createElement( imageType, attributes );\n\n\t\t\tmodel.insertObject( imageElement, selectable, null, {\n\t\t\t\tsetSelection: 'on',\n\t\t\t\t// If we want to insert a block image (for whatever reason) then we don't want to split text blocks.\n\t\t\t\t// This applies only when we don't have the selectable specified (i.e., we insert multiple block images at once).\n\t\t\t\tfindOptimalPosition: !selectable && imageType != 'imageInline'\n\t\t\t} );\n\n\t\t\t// Inserting an image might've failed due to schema regulations.\n\t\t\tif ( imageElement.parent ) {\n\t\t\t\treturn imageElement;\n\t\t\t}\n\n\t\t\treturn null;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns an image widget editing view element if one is selected or is among the selection's ancestors.\n\t *\n\t * @protected\n\t * @param {module:engine/view/selection~Selection|module:engine/view/documentselection~DocumentSelection} selection\n\t * @returns {module:engine/view/element~Element|null}\n\t */\n\tgetClosestSelectedImageWidget( selection ) {\n\t\tconst selectionPosition = selection.getFirstPosition();\n\n\t\tif ( !selectionPosition ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst viewElement = selection.getSelectedElement();\n\n\t\tif ( viewElement && this.isImageWidget( viewElement ) ) {\n\t\t\treturn viewElement;\n\t\t}\n\n\t\tlet parent = selectionPosition.parent;\n\n\t\twhile ( parent ) {\n\t\t\tif ( parent.is( 'element' ) && this.isImageWidget( parent ) ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns a image model element if one is selected or is among the selection's ancestors.\n\t *\n\t * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tgetClosestSelectedImageElement( selection ) {\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\treturn this.isImage( selectedElement ) ? selectedElement : selection.getFirstPosition().findAncestor( 'imageBlock' );\n\t}\n\n\t/**\n\t * Checks if image can be inserted at current model selection.\n\t *\n\t * @protected\n\t * @returns {Boolean}\n\t */\n\tisImageAllowed() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\treturn isImageAllowedInParent( this.editor, selection ) && isNotInsideImage( selection );\n\t}\n\n\t/**\n\t * Converts a given {@link module:engine/view/element~Element} to an image widget:\n\t * * Adds a {@link module:engine/view/element~Element#_setCustomProperty custom property} allowing to recognize the image widget\n\t * element.\n\t * * Calls the {@link module:widget/utils~toWidget} function with the proper element's label creator.\n\t *\n\t * @protected\n\t * @param {module:engine/view/element~Element} viewElement\n\t * @param {module:engine/view/downcastwriter~DowncastWriter} writer An instance of the view writer.\n\t * @param {String} label The element's label. It will be concatenated with the image `alt` attribute if one is present.\n\t * @returns {module:engine/view/element~Element}\n\t */\n\ttoImageWidget( viewElement, writer, label ) {\n\t\twriter.setCustomProperty( 'image', true, viewElement );\n\n\t\tconst labelCreator = () => {\n\t\t\tconst imgElement = this.findViewImgElement( viewElement );\n\t\t\tconst altText = imgElement.getAttribute( 'alt' );\n\n\t\t\treturn altText ? `${ altText } ${ label }` : label;\n\t\t};\n\n\t\treturn toWidget( viewElement, writer, { label: labelCreator } );\n\t}\n\n\t/**\n\t * Checks if a given view element is an image widget.\n\t *\n\t * @protected\n\t * @param {module:engine/view/element~Element} viewElement\n\t * @returns {Boolean}\n\t */\n\tisImageWidget( viewElement ) {\n\t\treturn !!viewElement.getCustomProperty( 'image' ) && isWidget( viewElement );\n\t}\n\n\t/**\n\t * Checks if the provided model element is an `image`.\n\t *\n\t * @param {module:engine/model/element~Element} modelElement\n\t * @returns {Boolean}\n\t */\n\tisBlockImage( modelElement ) {\n\t\treturn !!modelElement && modelElement.is( 'element', 'imageBlock' );\n\t}\n\n\t/**\n\t * Checks if the provided model element is an `imageInline`.\n\t *\n\t * @param {module:engine/model/element~Element} modelElement\n\t * @returns {Boolean}\n\t */\n\tisInlineImage( modelElement ) {\n\t\treturn !!modelElement && modelElement.is( 'element', 'imageInline' );\n\t}\n\n\t/**\n\t * Get the view `<img>` from another view element, e.g. a widget (`<figure class=\"image\">`), a link (`<a>`).\n\t *\n\t * The `<img>` can be located deep in other elements, so this helper performs a deep tree search.\n\t *\n\t * @param {module:engine/view/element~Element} figureView\n\t * @returns {module:engine/view/element~Element}\n\t */\n\tfindViewImgElement( figureView ) {\n\t\tif ( this.isInlineImageView( figureView ) ) {\n\t\t\treturn figureView;\n\t\t}\n\n\t\tconst editingView = this.editor.editing.view;\n\n\t\tfor ( const { item } of editingView.createRangeIn( figureView ) ) {\n\t\t\tif ( this.isInlineImageView( item ) ) {\n\t\t\t\treturn item;\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Checks if image is allowed by schema in optimal insertion parent.\n//\n// @private\n// @param {module:core/editor/editor~Editor} editor\n// @param {module:engine/model/selection~Selection} selection\n// @returns {Boolean}\nfunction isImageAllowedInParent( editor, selection ) {\n\tconst imageType = determineImageTypeForInsertion( editor, selection );\n\n\tif ( imageType == 'imageBlock' ) {\n\t\tconst parent = getInsertImageParent( selection, editor.model );\n\n\t\tif ( editor.model.schema.checkChild( parent, 'imageBlock' ) ) {\n\t\t\treturn true;\n\t\t}\n\t} else if ( editor.model.schema.checkChild( selection.focus, 'imageInline' ) ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n// Checks if selection is not placed inside an image (e.g. its caption).\n//\n// @private\n// @param {module:engine/model/selection~Selectable} selection\n// @returns {Boolean}\nfunction isNotInsideImage( selection ) {\n\treturn [ ...selection.focus.getAncestors() ].every( ancestor => !ancestor.is( 'element', 'imageBlock' ) );\n}\n\n// Returns a node that will be used to insert image with `model.insertContent`.\n//\n// @private\n// @param {module:engine/model/selection~Selection} selection\n// @param {module:engine/model/model~Model} model\n// @returns {module:engine/model/element~Element}\nfunction getInsertImageParent( selection, model ) {\n\tconst insertionRange = findOptimalInsertionRange( selection, model );\n\tconst parent = insertionRange.start.parent;\n\n\tif ( parent.isEmpty && !parent.is( 'element', '$root' ) ) {\n\t\treturn parent.parent;\n\t}\n\n\treturn parent;\n}\n\n// Determine image element type name depending on editor config or place of insertion.\n//\n// @private\n// @param {module:core/editor/editor~Editor} editor\n// @param {module:engine/model/selection~Selectable} selectable\n// @param {'imageBlock'|'imageInline'} [imageType] Image element type name. Used to force return of provided element name,\n// but only if there is proper plugin enabled.\n// @returns {'imageBlock'|'imageInline'} imageType\nfunction determineImageTypeForInsertion( editor, selectable, imageType ) {\n\tconst schema = editor.model.schema;\n\tconst configImageInsertType = editor.config.get( 'image.insert.type' );\n\n\tif ( !editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\treturn 'imageInline';\n\t}\n\n\tif ( !editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\treturn 'imageBlock';\n\t}\n\n\tif ( imageType ) {\n\t\treturn imageType;\n\t}\n\n\tif ( configImageInsertType === 'inline' ) {\n\t\treturn 'imageInline';\n\t}\n\n\tif ( configImageInsertType === 'block' ) {\n\t\treturn 'imageBlock';\n\t}\n\n\t// Try to replace the selected widget (e.g. another image).\n\tif ( selectable.is( 'selection' ) ) {\n\t\treturn determineImageTypeForInsertionAtSelection( schema, selectable );\n\t}\n\n\treturn schema.checkChild( selectable, 'imageInline' ) ? 'imageInline' : 'imageBlock';\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/imagetextalternativeediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageTextAlternativeCommand from './imagetextalternativecommand';\nimport ImageUtils from '../imageutils';\n\n/**\n * The image text alternative editing plugin.\n *\n * Registers the `'imageTextAlternative'` command.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageTextAlternativeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageTextAlternativeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tthis.editor.commands.add( 'imageTextAlternative', new ImageTextAlternativeCommand( this.editor ) );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./textalternativeform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/ui/textalternativeformview\n */\n\nimport {\n\tButtonView,\n\tFocusCycler,\n\tLabeledFieldView,\n\tView,\n\tViewCollection,\n\tcreateLabeledInputText,\n\tinjectCssTransitionDisabler,\n\tsubmitHandler\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport '../../../theme/textalternativeform.css';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\n\n/**\n * The TextAlternativeFormView class.\n *\n * @extends module:ui/view~View\n */\nexport default class TextAlternativeFormView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale ) {\n\t\tsuper( locale );\n\n\t\tconst t = this.locale.t;\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * An input with a label.\n\t\t *\n\t\t * @member {module:ui/labeledfield/labeledfieldview~LabeledFieldView} #labeledInput\n\t\t */\n\t\tthis.labeledInput = this._createLabeledInputView();\n\n\t\t/**\n\t\t * A button used to submit the form.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView} #saveButtonView\n\t\t */\n\t\tthis.saveButtonView = this._createButton( t( 'Save' ), icons.check, 'ck-button-save' );\n\t\tthis.saveButtonView.type = 'submit';\n\n\t\t/**\n\t\t * A button used to cancel the form.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView} #cancelButtonView\n\t\t */\n\t\tthis.cancelButtonView = this._createButton( t( 'Cancel' ), icons.cancel, 'ck-button-cancel', 'cancel' );\n\n\t\t/**\n\t\t * A collection of views which can be focused in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Helps cycling over {@link #_focusables} in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-text-alternative-form',\n\t\t\t\t\t'ck-responsive-form'\n\t\t\t\t],\n\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-image/issues/40\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\tthis.labeledInput,\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t]\n\t\t} );\n\n\t\tinjectCssTransitionDisabler( this );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\tthis.keystrokes.listenTo( this.element );\n\n\t\tsubmitHandler( { view: this } );\n\n\t\t[ this.labeledInput, this.saveButtonView, this.cancelButtonView ]\n\t\t\t.forEach( v => {\n\t\t\t\t// Register the view as focusable.\n\t\t\t\tthis._focusables.add( v );\n\n\t\t\t\t// Register the view in the focus tracker.\n\t\t\t\tthis.focusTracker.add( v.element );\n\t\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Creates the button view.\n\t *\n\t * @private\n\t * @param {String} label The button label\n\t * @param {String} icon The button's icon.\n\t * @param {String} className The additional button CSS class name.\n\t * @param {String} [eventName] The event name that the ButtonView#execute event will be delegated to.\n\t * @returns {module:ui/button/buttonview~ButtonView} The button view instance.\n\t */\n\t_createButton( label, icon, className, eventName ) {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: className\n\t\t\t}\n\t\t} );\n\n\t\tif ( eventName ) {\n\t\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\t\t}\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Creates an input with a label.\n\t *\n\t * @private\n\t * @returns {module:ui/labeledfield/labeledfieldview~LabeledFieldView} Labeled field view instance.\n\t */\n\t_createLabeledInputView() {\n\t\tconst t = this.locale.t;\n\t\tconst labeledInput = new LabeledFieldView( this.locale, createLabeledInputText );\n\n\t\tlabeledInput.label = t( 'Text alternative' );\n\n\t\treturn labeledInput;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/ui/utils\n */\n\nimport { BalloonPanelView } from 'ckeditor5/src/ui';\n\n/**\n * A helper utility that positions the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} instance\n * with respect to the image in the editor content, if one is selected.\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n */\nexport function repositionContextualBalloon( editor ) {\n\tconst balloon = editor.plugins.get( 'ContextualBalloon' );\n\n\tif ( editor.plugins.get( 'ImageUtils' ).getClosestSelectedImageWidget( editor.editing.view.document.selection ) ) {\n\t\tconst position = getBalloonPositionData( editor );\n\n\t\tballoon.updatePosition( position );\n\t}\n}\n\n/**\n * Returns the positioning options that control the geometry of the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} with respect\n * to the selected element in the editor content.\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n * @returns {module:utils/dom/position~Options}\n */\nexport function getBalloonPositionData( editor ) {\n\tconst editingView = editor.editing.view;\n\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\treturn {\n\t\ttarget: editingView.domConverter.mapViewToDom( imageUtils.getClosestSelectedImageWidget( editingView.document.selection ) ),\n\t\tpositions: [\n\t\t\tdefaultPositions.northArrowSouth,\n\t\t\tdefaultPositions.northArrowSouthWest,\n\t\t\tdefaultPositions.northArrowSouthEast,\n\t\t\tdefaultPositions.southArrowNorth,\n\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\tdefaultPositions.viewportStickyNorth\n\t\t]\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/imagetextalternativeui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView, ContextualBalloon, clickOutsideHandler } from 'ckeditor5/src/ui';\n\nimport TextAlternativeFormView from './ui/textalternativeformview';\nimport { repositionContextualBalloon, getBalloonPositionData } from '../image/ui/utils';\n\n/**\n * The image text alternative UI plugin.\n *\n * The plugin uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageTextAlternativeUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ContextualBalloon ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageTextAlternativeUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tthis._createButton();\n\t\tthis._createForm();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tthis._form.destroy();\n\t}\n\n\t/**\n\t * Creates a button showing the balloon panel for changing the image text alternative and\n\t * registers it in the editor {@link module:ui/componentfactory~ComponentFactory ComponentFactory}.\n\t *\n\t * @private\n\t */\n\t_createButton() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'imageTextAlternative', locale => {\n\t\t\tconst command = editor.commands.get( 'imageTextAlternative' );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Change image text alternative' ),\n\t\t\t\ticon: icons.lowVision,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t\t\tview.bind( 'isOn' ).to( command, 'value', value => !!value );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\tthis._showForm();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\t/**\n\t * Creates the {@link module:image/imagetextalternative/ui/textalternativeformview~TextAlternativeFormView}\n\t * form.\n\t *\n\t * @private\n\t */\n\t_createForm() {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\t/**\n\t\t * The contextual balloon plugin instance.\n\t\t *\n\t\t * @private\n\t\t * @member {module:ui/panel/balloon/contextualballoon~ContextualBalloon}\n\t\t */\n\t\tthis._balloon = this.editor.plugins.get( 'ContextualBalloon' );\n\n\t\t/**\n\t\t * A form containing a textarea and buttons, used to change the `alt` text value.\n\t\t *\n\t\t * @member {module:image/imagetextalternative/ui/textalternativeformview~TextAlternativeFormView}\n\t\t */\n\t\tthis._form = new TextAlternativeFormView( editor.locale );\n\n\t\t// Render the form so its #element is available for clickOutsideHandler.\n\t\tthis._form.render();\n\n\t\tthis.listenTo( this._form, 'submit', () => {\n\t\t\teditor.execute( 'imageTextAlternative', {\n\t\t\t\tnewValue: this._form.labeledInput.fieldView.element.value\n\t\t\t} );\n\n\t\t\tthis._hideForm( true );\n\t\t} );\n\n\t\tthis.listenTo( this._form, 'cancel', () => {\n\t\t\tthis._hideForm( true );\n\t\t} );\n\n\t\t// Close the form on Esc key press.\n\t\tthis._form.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideForm( true );\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Reposition the balloon or hide the form if an image widget is no longer selected.\n\t\tthis.listenTo( editor.ui, 'update', () => {\n\t\t\tif ( !imageUtils.getClosestSelectedImageWidget( viewDocument.selection ) ) {\n\t\t\t\tthis._hideForm( true );\n\t\t\t} else if ( this._isVisible ) {\n\t\t\t\trepositionContextualBalloon( editor );\n\t\t\t}\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this._form,\n\t\t\tactivator: () => this._isVisible,\n\t\t\tcontextElements: [ this._balloon.view.element ],\n\t\t\tcallback: () => this._hideForm()\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the {@link #_form} in the {@link #_balloon}.\n\t *\n\t * @private\n\t */\n\t_showForm() {\n\t\tif ( this._isVisible ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst command = editor.commands.get( 'imageTextAlternative' );\n\t\tconst labeledInput = this._form.labeledInput;\n\n\t\tthis._form.disableCssTransitions();\n\n\t\tif ( !this._isInBalloon ) {\n\t\t\tthis._balloon.add( {\n\t\t\t\tview: this._form,\n\t\t\t\tposition: getBalloonPositionData( editor )\n\t\t\t} );\n\t\t}\n\n\t\t// Make sure that each time the panel shows up, the field remains in sync with the value of\n\t\t// the command. If the user typed in the input, then canceled the balloon (`labeledInput#value`\n\t\t// stays unaltered) and re-opened it without changing the value of the command, they would see the\n\t\t// old value instead of the actual value of the command.\n\t\t// https://github.com/ckeditor/ckeditor5-image/issues/114\n\t\tlabeledInput.fieldView.value = labeledInput.fieldView.element.value = command.value || '';\n\n\t\tthis._form.labeledInput.fieldView.select();\n\n\t\tthis._form.enableCssTransitions();\n\t}\n\n\t/**\n\t * Removes the {@link #_form} from the {@link #_balloon}.\n\t *\n\t * @param {Boolean} [focusEditable=false] Controls whether the editing view is focused afterwards.\n\t * @private\n\t */\n\t_hideForm( focusEditable ) {\n\t\tif ( !this._isInBalloon ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Blur the input element before removing it from DOM to prevent issues in some browsers.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\tif ( this._form.focusTracker.isFocused ) {\n\t\t\tthis._form.saveButtonView.focus();\n\t\t}\n\n\t\tthis._balloon.remove( this._form );\n\n\t\tif ( focusEditable ) {\n\t\t\tthis.editor.editing.view.focus();\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #_form} is the visible view in the {@link #_balloon}.\n\t *\n\t * @private\n\t * @type {Boolean}\n\t */\n\tget _isVisible() {\n\t\treturn this._balloon.visibleView === this._form;\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #_form} is in the {@link #_balloon}.\n\t *\n\t * @private\n\t * @type {Boolean}\n\t */\n\tget _isInBalloon() {\n\t\treturn this._balloon.hasView( this._form );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageTextAlternativeEditing from './imagetextalternative/imagetextalternativeediting';\nimport ImageTextAlternativeUI from './imagetextalternative/imagetextalternativeui';\n\n/**\n * The image text alternative plugin.\n *\n * For a detailed overview, check the {@glink features/images/images-styles image styles} documentation.\n *\n * This is a \"glue\" plugin which loads the\n *  {@link module:image/imagetextalternative/imagetextalternativeediting~ImageTextAlternativeEditing}\n * and {@link module:image/imagetextalternative/imagetextalternativeui~ImageTextAlternativeUI} plugins.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageTextAlternative extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageTextAlternativeEditing, ImageTextAlternativeUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageTextAlternative';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/clipboardobserver\n */\n\nimport { EventInfo } from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tDataTransfer,\n\tDomEventObserver,\n\ttype DomEventData,\n\ttype View,\n\ttype ViewDocumentFragment,\n\ttype ViewElement,\n\ttype ViewRange\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * Clipboard events observer.\n *\n * Fires the following events:\n *\n * * {@link module:engine/view/document~Document#event:clipboardInput},\n * * {@link module:engine/view/document~Document#event:paste},\n * * {@link module:engine/view/document~Document#event:copy},\n * * {@link module:engine/view/document~Document#event:cut},\n * * {@link module:engine/view/document~Document#event:drop},\n * * {@link module:engine/view/document~Document#event:dragover},\n * * {@link module:engine/view/document~Document#event:dragging},\n * * {@link module:engine/view/document~Document#event:dragstart},\n * * {@link module:engine/view/document~Document#event:dragend},\n * * {@link module:engine/view/document~Document#event:dragenter},\n * * {@link module:engine/view/document~Document#event:dragleave}.\n *\n * **Note**: This observer is not available by default (ckeditor5-engine does not add it on its own).\n * To make it available, it needs to be added to {@link module:engine/view/document~Document} by using\n * the {@link module:engine/view/view~View#addObserver `View#addObserver()`} method. Alternatively, you can load the\n * {@link module:clipboard/clipboard~Clipboard} plugin which adds this observer automatically (because it uses it).\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class ClipboardObserver extends DomEventObserver<\n\t'paste' | 'copy' | 'cut' | 'drop' | 'dragover' | 'dragstart' | 'dragend' | 'dragenter' | 'dragleave',\n\tClipboardEventData\n> {\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst viewDocument = this.document;\n\n\t\tthis.domEventType = [ 'paste', 'copy', 'cut', 'drop', 'dragover', 'dragstart', 'dragend', 'dragenter', 'dragleave' ];\n\n\t\tthis.listenTo<ViewDocumentClipboardEvent>( viewDocument, 'paste', handleInput( 'clipboardInput' ), { priority: 'low' } );\n\t\tthis.listenTo<ViewDocumentDragEvent>( viewDocument, 'drop', handleInput( 'clipboardInput' ), { priority: 'low' } );\n\t\tthis.listenTo<ViewDocumentDragEvent>( viewDocument, 'dragover', handleInput( 'dragging' ), { priority: 'low' } );\n\n\t\tfunction handleInput( type: 'clipboardInput' | 'dragging' ) {\n\t\t\treturn ( evt: EventInfo, data: DomEventData<ClipboardEvent | DragEvent> & ClipboardEventData ) => {\n\t\t\t\tdata.preventDefault();\n\n\t\t\t\tconst targetRanges = data.dropRange ? [ data.dropRange ] : null;\n\t\t\t\tconst eventInfo = new EventInfo( viewDocument, type );\n\n\t\t\t\tviewDocument.fire<ViewDocumentClipboardInputEvent>( eventInfo, {\n\t\t\t\t\tdataTransfer: data.dataTransfer,\n\t\t\t\t\tmethod: evt.name as 'paste' | 'dragover' | 'drop',\n\t\t\t\t\ttargetRanges,\n\t\t\t\t\ttarget: data.target\n\t\t\t\t} );\n\n\t\t\t\t// If CKEditor handled the input, do not bubble the original event any further.\n\t\t\t\t// This helps external integrations recognize that fact and act accordingly.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-upload/issues/92\n\t\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\t\tdata.stopPropagation();\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t}\n\n\tpublic onDomEvent( domEvent: ClipboardEvent | DragEvent ): void {\n\t\tconst evtData: ClipboardEventData = {\n\t\t\tdataTransfer: new DataTransfer( 'clipboardData' in domEvent ? domEvent.clipboardData! : domEvent.dataTransfer! )\n\t\t};\n\n\t\tif ( domEvent.type == 'drop' || domEvent.type == 'dragover' ) {\n\t\t\tevtData.dropRange = getDropViewRange( this.view, domEvent as DragEvent );\n\t\t}\n\n\t\tthis.fire( domEvent.type, domEvent, evtData );\n\t}\n}\n\nexport type ViewDocumentClipboardEvent = {\n\tname: 'paste' | 'copy' | 'cut';\n\targs: [ data: DomEventData<ClipboardEvent> & ClipboardEventData ];\n};\n\nexport type ViewDocumentDragEvent = {\n\tname: 'drop' | 'dragover' | 'dragstart' | 'dragend' | 'dragenter' | 'dragleave';\n\targs: [ data: DomEventData<DragEvent> & ClipboardEventData ];\n};\n\nexport type ClipboardEventData = {\n\tdataTransfer: DataTransfer;\n\tdropRange?: ViewRange | null;\n};\n\nexport type ViewDocumentClipboardInputEvent = {\n\tname: 'clipboardInput' | 'dragging';\n\targs: [ data: {\n\t\tdataTransfer: DataTransfer;\n\t\tmethod: 'paste' | 'dragover' | 'drop';\n\t\ttargetRanges: Array<ViewRange> | null;\n\t\ttarget: ViewElement;\n\t\tcontent?: ViewDocumentFragment;\n\t} ];\n};\n\nfunction getDropViewRange( view: View, domEvent: DragEvent & { rangeParent?: Node; rangeOffset?: number } ) {\n\tconst domDoc = ( domEvent.target as Node ).ownerDocument!;\n\tconst x = domEvent.clientX;\n\tconst y = domEvent.clientY;\n\tlet domRange;\n\n\t// Webkit & Blink.\n\tif ( domDoc.caretRangeFromPoint && domDoc.caretRangeFromPoint( x, y ) ) {\n\t\tdomRange = domDoc.caretRangeFromPoint( x, y );\n\t}\n\t// FF.\n\telse if ( domEvent.rangeParent ) {\n\t\tdomRange = domDoc.createRange();\n\t\tdomRange.setStart( domEvent.rangeParent, domEvent.rangeOffset! );\n\t\tdomRange.collapse( true );\n\t}\n\n\tif ( domRange ) {\n\t\treturn view.domConverter.domRangeToView( domRange );\n\t}\n\n\treturn null;\n}\n\n/**\n * Fired as a continuation of the {@link #event:paste} and {@link #event:drop} events.\n *\n * It is a part of the {@glink framework/guides/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * This event carries a `dataTransfer` object which comes from the clipboard and whose content should be processed\n * and inserted into the editor.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboard~Clipboard\n * @event module:engine/view/document~Document#event:clipboardInput\n * @param {Object} data The event data.\n * @param {module:engine/view/datatransfer~DataTransfer} data.dataTransfer Data transfer instance.\n * @param {'paste'|'drop'} method Whether the event was triggered by a paste or drop operation.\n * @param {module:engine/view/element~Element} target The tree view element representing the target.\n * @param {Array.<module:engine/view/range~Range>} data.targetRanges Ranges which are the target of the operation\n * (usually – into which the content should be inserted).\n * If the clipboard input was triggered by a paste operation, this property is not set. If by a drop operation,\n * then it is the drop position (which can be different than the selection at the moment of drop).\n */\n\n/**\n * Fired when the user drags the content over one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n * @event module:engine/view/document~Document#event:dragover\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n\n/**\n * Fired when the user dropped the content into one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n * @event module:engine/view/document~Document#event:drop\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n * @param {module:engine/view/range~Range} dropRange The position into which the content is dropped.\n */\n\n/**\n * Fired when the user pasted the content into one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n * @event module:engine/view/document~Document#event:paste\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n\n/**\n * Fired when the user copied the content from one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @event module:engine/view/document~Document#event:copy\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n\n/**\n * Fired when the user cut the content from one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @event module:engine/view/document~Document#event:cut\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n\n/**\n * The value of the {@link module:engine/view/document~Document#event:paste},\n * {@link module:engine/view/document~Document#event:copy} and {@link module:engine/view/document~Document#event:cut} events.\n *\n * In order to access the clipboard data, use the `dataTransfer` property.\n *\n * @class module:clipboard/clipboardobserver~ClipboardEventData\n * @extends module:engine/view/observer/domeventdata~DomEventData\n */\n\n/**\n * The data transfer instance.\n *\n * @readonly\n * @member {module:engine/view/datatransfer~DataTransfer} module:clipboard/clipboardobserver~ClipboardEventData#dataTransfer\n */\n\n/**\n * Fired as a continuation of the {@link #event:dragover} event.\n *\n * It is a part of the {@glink framework/guides/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * This event carries a `dataTransfer` object which comes from the clipboard and whose content should be processed\n * and inserted into the editor.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboard~Clipboard\n * @event module:engine/view/document~Document#event:dragging\n * @param {Object} data The event data.\n * @param {module:engine/view/datatransfer~DataTransfer} data.dataTransfer The data transfer instance.\n * @param {module:engine/view/element~Element} target The tree view element representing the target.\n * @param {Array.<module:engine/view/range~Range>} data.targetRanges Ranges which are the target of the operation\n * (usually – into which the content should be inserted).\n * It is the drop position (which can be different than the selection at the moment of drop).\n */\n\n/**\n * Fired when the user starts dragging the content in one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n * @event module:engine/view/document~Document#event:dragstart\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n\n/**\n * Fired when the user ended dragging the content.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n * @event module:engine/view/document~Document#event:dragend\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n\n/**\n * Fired when the user drags the content into one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n * @event module:engine/view/document~Document#event:dragenter\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n\n/**\n * Fired when the user drags the content out of one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n * @event module:engine/view/document~Document#event:dragleave\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/utils/viewtoplaintext\n */\n\nimport type { ViewDocumentFragment, ViewElement, ViewItem } from '@ckeditor/ckeditor5-engine';\n\n// Elements which should not have empty-line padding.\n// Most `view.ContainerElement` want to be separate by new-line, but some are creating one structure\n// together (like `<li>`) so it is better to separate them by only one \"\\n\".\nconst smallPaddingElements = [ 'figcaption', 'li' ];\n\n/**\n * Converts {@link module:engine/view/item~Item view item} and all of its children to plain text.\n *\n * @param {module:engine/view/item~Item} viewItem View item to convert.\n * @returns {String} Plain text representation of `viewItem`.\n */\nexport default function viewToPlainText( viewItem: ViewItem | ViewDocumentFragment ): string {\n\tlet text = '';\n\n\tif ( viewItem.is( '$text' ) || viewItem.is( '$textProxy' ) ) {\n\t\t// If item is `Text` or `TextProxy` simple take its text data.\n\t\ttext = viewItem.data;\n\t} else if ( viewItem.is( 'element', 'img' ) && viewItem.hasAttribute( 'alt' ) ) {\n\t\t// Special case for images - use alt attribute if it is provided.\n\t\ttext = viewItem.getAttribute( 'alt' )!;\n\t} else if ( viewItem.is( 'element', 'br' ) ) {\n\t\t// A soft break should be converted into a single line break (#8045).\n\t\ttext = '\\n';\n\t} else {\n\t\t// Other elements are document fragments, attribute elements or container elements.\n\t\t// They don't have their own text value, so convert their children.\n\t\tlet prev = null;\n\n\t\tfor ( const child of ( viewItem as ViewElement | ViewDocumentFragment ).getChildren() ) {\n\t\t\tconst childText = viewToPlainText( child );\n\n\t\t\t// Separate container element children with one or more new-line characters.\n\t\t\tif ( prev && ( prev.is( 'containerElement' ) || child.is( 'containerElement' ) ) ) {\n\t\t\t\tif (\n\t\t\t\t\tsmallPaddingElements.includes( ( prev as ViewElement ).name ) ||\n\t\t\t\t\tsmallPaddingElements.includes( ( child as ViewElement ).name )\n\t\t\t\t) {\n\t\t\t\t\ttext += '\\n';\n\t\t\t\t} else {\n\t\t\t\t\ttext += '\\n\\n';\n\t\t\t\t}\n\t\t\t}\n\n\t\t\ttext += childText;\n\t\t\tprev = child;\n\t\t}\n\t}\n\n\treturn text;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/clipboardpipeline\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\nimport { EventInfo, type GetCallback } from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDataTransfer,\n\tDocumentFragment,\n\tRange,\n\tViewDocumentFragment,\n\tViewRange\n} from '@ckeditor/ckeditor5-engine';\n\nimport ClipboardObserver, {\n\ttype ViewDocumentClipboardEvent,\n\ttype ViewDocumentClipboardInputEvent\n} from './clipboardobserver';\n\nimport plainTextToHtml from './utils/plaintexttohtml';\nimport normalizeClipboardHtml from './utils/normalizeclipboarddata';\nimport viewToPlainText from './utils/viewtoplaintext';\n\n// Input pipeline events overview:\n//\n//              ┌──────────────────────┐          ┌──────────────────────┐\n//              │     view.Document    │          │     view.Document    │\n//              │         paste        │          │         drop         │\n//              └───────────┬──────────┘          └───────────┬──────────┘\n//                          │                                 │\n//                          └────────────────┌────────────────┘\n//                                           │\n//                                 ┌─────────V────────┐\n//                                 │   view.Document  │   Retrieves text/html or text/plain from data.dataTransfer\n//                                 │  clipboardInput  │   and processes it to view.DocumentFragment.\n//                                 └─────────┬────────┘\n//                                           │\n//                               ┌───────────V───────────┐\n//                               │   ClipboardPipeline   │   Converts view.DocumentFragment to model.DocumentFragment.\n//                               │  inputTransformation  │\n//                               └───────────┬───────────┘\n//                                           │\n//                                ┌──────────V──────────┐\n//                                │  ClipboardPipeline  │   Calls model.insertContent().\n//                                │   contentInsertion  │\n//                                └─────────────────────┘\n//\n//\n// Output pipeline events overview:\n//\n//              ┌──────────────────────┐          ┌──────────────────────┐\n//              │     view.Document    │          │     view.Document    │   Retrieves the selected model.DocumentFragment\n//              │         copy         │          │          cut         │   and converts it to view.DocumentFragment.\n//              └───────────┬──────────┘          └───────────┬──────────┘\n//                          │                                 │\n//                          └────────────────┌────────────────┘\n//                                           │\n//                                 ┌─────────V────────┐\n//                                 │   view.Document  │   Processes view.DocumentFragment to text/html and text/plain\n//                                 │  clipboardOutput │   and stores the results in data.dataTransfer.\n//                                 └──────────────────┘\n//\n\n/**\n * The clipboard pipeline feature. It is responsible for intercepting the `paste` and `drop` events and\n * passing the pasted content through a series of events in order to insert it into the editor's content.\n * It also handles the `cut` and `copy` events to fill the native clipboard with the serialized editor's data.\n *\n * # Input pipeline\n *\n * The behavior of the default handlers (all at a `low` priority):\n *\n * ## Event: `paste` or `drop`\n *\n * 1. Translates the event data.\n * 2. Fires the {@link module:engine/view/document~Document#event:clipboardInput `view.Document#clipboardInput`} event.\n *\n * ## Event: `view.Document#clipboardInput`\n *\n * 1. If the `data.content` event field is already set (by some listener on a higher priority), it takes this content and fires the event\n *    from the last point.\n * 2. Otherwise, it retrieves `text/html` or `text/plain` from `data.dataTransfer`.\n * 3. Normalizes the raw data by applying simple filters on string data.\n * 4. Processes the raw data to {@link module:engine/view/documentfragment~DocumentFragment `view.DocumentFragment`} with the\n *    {@link module:engine/controller/datacontroller~DataController#htmlProcessor `DataController#htmlProcessor`}.\n * 5. Fires the {@link module:clipboard/clipboardpipeline~ClipboardPipeline#event:inputTransformation\n *   `ClipboardPipeline#inputTransformation`} event with the view document fragment in the `data.content` event field.\n *\n * ## Event: `ClipboardPipeline#inputTransformation`\n *\n * 1. Converts {@link module:engine/view/documentfragment~DocumentFragment `view.DocumentFragment`} from the `data.content` field to\n *    {@link module:engine/model/documentfragment~DocumentFragment `model.DocumentFragment`}.\n * 2. Fires the {@link module:clipboard/clipboardpipeline~ClipboardPipeline#event:contentInsertion `ClipboardPipeline#contentInsertion`}\n *    event with the model document fragment in the `data.content` event field.\n *    **Note**: The `ClipboardPipeline#contentInsertion` event is fired within a model change block to allow other handlers\n *    to run in the same block without post-fixers called in between (i.e., the selection post-fixer).\n *\n * ## Event: `ClipboardPipeline#contentInsertion`\n *\n * 1. Calls {@link module:engine/model/model~Model#insertContent `model.insertContent()`} to insert `data.content`\n *    at the current selection position.\n *\n * # Output pipeline\n *\n * The behavior of the default handlers (all at a `low` priority):\n *\n * ## Event: `copy`, `cut` or `dragstart`\n *\n * 1. Retrieves the selected {@link module:engine/model/documentfragment~DocumentFragment `model.DocumentFragment`} by calling\n *    {@link module:engine/model/model~Model#getSelectedContent `model#getSelectedContent()`}.\n * 2. Converts the model document fragment to {@link module:engine/view/documentfragment~DocumentFragment `view.DocumentFragment`}.\n * 3. Fires the {@link module:engine/view/document~Document#event:clipboardOutput `view.Document#clipboardOutput`} event\n *    with the view document fragment in the `data.content` event field.\n *\n * ## Event: `view.Document#clipboardOutput`\n *\n * 1. Processes `data.content` to HTML and plain text with the\n *    {@link module:engine/controller/datacontroller~DataController#htmlProcessor `DataController#htmlProcessor`}.\n * 2. Updates the `data.dataTransfer` data for `text/html` and `text/plain` with the processed data.\n * 3. For the `cut` method, calls {@link module:engine/model/model~Model#deleteContent `model.deleteContent()`}\n *    on the current selection.\n *\n * Read more about the clipboard integration in the {@glink framework/guides/deep-dive/clipboard clipboard deep-dive guide}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ClipboardPipeline extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ClipboardPipeline' {\n\t\treturn 'ClipboardPipeline';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\n\t\tview.addObserver( ClipboardObserver );\n\n\t\tthis._setupPasteDrop();\n\t\tthis._setupCopyCut();\n\t}\n\n\t/**\n\t * The clipboard paste pipeline.\n\t *\n\t * @private\n\t */\n\tprivate _setupPasteDrop(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Pasting and dropping is disabled when editor is in the read-only mode.\n\t\t// See: https://github.com/ckeditor/ckeditor5-clipboard/issues/26.\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( viewDocument, 'clipboardInput', evt => {\n\t\t\tif ( editor.isReadOnly ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( viewDocument, 'clipboardInput', ( evt, data ) => {\n\t\t\tconst dataTransfer = data.dataTransfer;\n\t\t\tlet content: ViewDocumentFragment;\n\n\t\t\t// Some feature could already inject content in the higher priority event handler (i.e., codeBlock).\n\t\t\tif ( data.content ) {\n\t\t\t\tcontent = data.content;\n\t\t\t} else {\n\t\t\t\tlet contentData = '';\n\n\t\t\t\tif ( dataTransfer.getData( 'text/html' ) ) {\n\t\t\t\t\tcontentData = normalizeClipboardHtml( dataTransfer.getData( 'text/html' ) );\n\t\t\t\t} else if ( dataTransfer.getData( 'text/plain' ) ) {\n\t\t\t\t\tcontentData = plainTextToHtml( dataTransfer.getData( 'text/plain' ) );\n\t\t\t\t}\n\n\t\t\t\tcontent = this.editor.data.htmlProcessor.toView( contentData );\n\t\t\t}\n\n\t\t\tconst eventInfo = new EventInfo( this, 'inputTransformation' );\n\n\t\t\tthis.fire<ClipboardInputTransformationEvent>( eventInfo, {\n\t\t\t\tcontent,\n\t\t\t\tdataTransfer,\n\t\t\t\ttargetRanges: data.targetRanges,\n\t\t\t\tmethod: data.method as 'paste' | 'drop'\n\t\t\t} );\n\n\t\t\t// If CKEditor handled the input, do not bubble the original event any further.\n\t\t\t// This helps external integrations recognize this fact and act accordingly.\n\t\t\t// https://github.com/ckeditor/ckeditor5-upload/issues/92\n\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\n\t\tthis.listenTo<ClipboardInputTransformationEvent>( this, 'inputTransformation', ( evt, data ) => {\n\t\t\tif ( data.content.isEmpty ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst dataController = this.editor.data;\n\n\t\t\t// Convert the pasted content into a model document fragment.\n\t\t\t// The conversion is contextual, but in this case an \"all allowed\" context is needed\n\t\t\t// and for that we use the $clipboardHolder item.\n\t\t\tconst modelFragment = dataController.toModel( data.content, '$clipboardHolder' );\n\n\t\t\tif ( modelFragment.childCount == 0 ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\t// Fire content insertion event in a single change block to allow other handlers to run in the same block\n\t\t\t// without post-fixers called in between (i.e., the selection post-fixer).\n\t\t\tmodel.change( () => {\n\t\t\t\tthis.fire<ClipboardContentInsertionEvent>( 'contentInsertion', {\n\t\t\t\t\tcontent: modelFragment,\n\t\t\t\t\tmethod: data.method,\n\t\t\t\t\tdataTransfer: data.dataTransfer,\n\t\t\t\t\ttargetRanges: data.targetRanges\n\t\t\t\t} );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\n\t\tthis.listenTo<ClipboardContentInsertionEvent>( this, 'contentInsertion', ( evt, data ) => {\n\t\t\tdata.resultRange = model.insertContent( data.content );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * The clipboard copy/cut pipeline.\n\t *\n\t * @private\n\t */\n\tprivate _setupCopyCut(): void {\n\t\tconst editor = this.editor;\n\t\tconst modelDocument = editor.model.document;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tconst onCopyCut: OmitThisParameter<GetCallback<ViewDocumentClipboardEvent>> = ( evt, data ) => {\n\t\t\tconst dataTransfer = data.dataTransfer;\n\n\t\t\tdata.preventDefault();\n\n\t\t\tconst content = editor.data.toView( editor.model.getSelectedContent( modelDocument.selection ) );\n\n\t\t\tviewDocument.fire<ClipboardOutputEvent>( 'clipboardOutput', {\n\t\t\t\tdataTransfer,\n\t\t\t\tcontent,\n\t\t\t\tmethod: evt.name as 'copy' | 'cut'\n\t\t\t} );\n\t\t};\n\n\t\tthis.listenTo<ViewDocumentClipboardEvent>( viewDocument, 'copy', onCopyCut, { priority: 'low' } );\n\t\tthis.listenTo<ViewDocumentClipboardEvent>( viewDocument, 'cut', ( evt, data ) => {\n\t\t\t// Cutting is disabled when editor is in the read-only mode.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5-clipboard/issues/26.\n\t\t\tif ( editor.isReadOnly ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t} else {\n\t\t\t\tonCopyCut( evt, data );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\tthis.listenTo<ClipboardOutputEvent>( viewDocument, 'clipboardOutput', ( evt, data ) => {\n\t\t\tif ( !data.content.isEmpty ) {\n\t\t\t\tdata.dataTransfer.setData( 'text/html', this.editor.data.htmlProcessor.toData( data.content ) );\n\t\t\t\tdata.dataTransfer.setData( 'text/plain', viewToPlainText( data.content ) );\n\t\t\t}\n\n\t\t\tif ( data.method == 'cut' ) {\n\t\t\t\teditor.model.deleteContent( modelDocument.selection );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t}\n}\n\n/**\n * Fired with the `content`, `dataTransfer`, `method`, and `targetRanges` properties:\n *\n * * The `content` which comes from the clipboard (it was pasted or dropped) should be processed in order to be inserted into the editor.\n * * The `dataTransfer` object is available in case the transformation functions need access to the raw clipboard data.\n * * The `method` indicates the original DOM event (for example `'drop'` or `'paste'`).\n * * The `targetRanges` property is an array of view ranges (it is available only for `'drop'`).\n *\n * It is a part of the {@glink framework/guides/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * **Note**: You should not stop this event if you want to change the input data. You should modify the `content` property instead.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline\n * @event module:clipboard/clipboardpipeline~ClipboardPipeline#event:inputTransformation\n * @param {Object} data The event data.\n * @param {module:engine/view/documentfragment~DocumentFragment} data.content The event data. The content to be inserted into the editor.\n * It can be modified by event listeners. Read more about the clipboard pipelines in\n * the {@glink framework/guides/deep-dive/clipboard clipboard deep-dive guide}.\n * @param {module:engine/view/datatransfer~DataTransfer} data.dataTransfer The data transfer instance.\n * @param {'paste'|'drop'} data.method Whether the event was triggered by a paste or drop operation.\n * @param {Array.<module:engine/view/range~Range>} data.targetRanges The target drop ranges.\n */\nexport type ClipboardInputTransformationEvent = {\n\tname: 'inputTransformation';\n\targs: [ data: {\n\t\tcontent: ViewDocumentFragment;\n\t\tdataTransfer: DataTransfer;\n\t\tmethod: 'paste' | 'drop';\n\t\ttargetRanges: Array<ViewRange> | null;\n\t} ];\n};\n\n/**\n * Fired with the `content`, `dataTransfer`, `method`, and `targetRanges` properties:\n *\n * * The `content` which comes from the clipboard (was pasted or dropped) should be processed in order to be inserted into the editor.\n * * The `dataTransfer` object is available in case the transformation functions need access to the raw clipboard data.\n * * The `method` indicates the original DOM event (for example `'drop'` or `'paste'`).\n * * The `targetRanges` property is an array of view ranges (it is available only for `'drop'`).\n *\n * Event handlers can modify the content according to the final insertion position.\n *\n * It is a part of the {@glink framework/guides/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * **Note**: You should not stop this event if you want to change the input data. You should modify the `content` property instead.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline#event:inputTransformation\n * @event module:clipboard/clipboardpipeline~ClipboardPipeline#event:contentInsertion\n * @param {Object} data The event data.\n * @param {module:engine/model/documentfragment~DocumentFragment} data.content The event data. The content to be inserted into the editor.\n * Read more about the clipboard pipelines in the {@glink framework/guides/deep-dive/clipboard clipboard deep-dive guide}.\n * @param {module:engine/view/datatransfer~DataTransfer} data.dataTransfer The data transfer instance.\n * @param {'paste'|'drop'} data.method Whether the event was triggered by a paste or drop operation.\n * @param {Array.<module:engine/view/range~Range>} data.targetRanges The target drop ranges.\n * @param {module:engine/model/range~Range} data.resultRange The result of the `model.insertContent()` call\n *  (inserted by the event handler at a low priority).\n */\nexport type ClipboardContentInsertionEvent = {\n\tname: 'contentInsertion';\n\targs: [ data: {\n\t\tcontent: DocumentFragment;\n\t\tmethod: 'paste' | 'drop';\n\t\tdataTransfer: DataTransfer;\n\t\ttargetRanges: Array<ViewRange> | null;\n\t\tresultRange?: Range;\n\t} ];\n};\n\n/**\n * Fired on {@link module:engine/view/document~Document#event:copy} and {@link module:engine/view/document~Document#event:cut}\n * with a copy of the selected content. The content can be processed before it ends up in the clipboard.\n *\n * It is a part of the {@glink framework/guides/deep-dive/clipboard#output-pipeline clipboard output pipeline}.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline\n * @event module:engine/view/document~Document#event:clipboardOutput\n * @param {module:clipboard/clipboardpipeline~ClipboardOutputEventData} data The event data.\n */\nexport type ClipboardOutputEvent = {\n\tname: 'clipboardOutput';\n\targs: [ data: ClipboardOutputEventData ];\n};\n\n/**\n * The value of the {@link module:engine/view/document~Document#event:clipboardOutput} event.\n *\n * @class module:clipboard/clipboardpipeline~ClipboardOutputEventData\n */\nexport type ClipboardOutputEventData = {\n\tdataTransfer: DataTransfer;\n\tcontent: ViewDocumentFragment;\n\tmethod: 'copy' | 'cut' | 'dragstart';\n};\n\n/**\n * The data transfer instance.\n *\n * @readonly\n * @member {module:engine/view/datatransfer~DataTransfer} module:clipboard/clipboardpipeline~ClipboardOutputEventData#dataTransfer\n */\n\n/**\n * Content to be put into the clipboard. It can be modified by the event listeners.\n * Read more about the clipboard pipelines in the {@glink framework/guides/deep-dive/clipboard clipboard deep-dive guide}.\n *\n * @member {module:engine/view/documentfragment~DocumentFragment} module:clipboard/clipboardpipeline~ClipboardOutputEventData#content\n */\n\n/**\n * Whether the event was triggered by a copy or cut operation.\n *\n * @member {'copy'|'cut'} module:clipboard/clipboardpipeline~ClipboardOutputEventData#method\n */\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ ClipboardPipeline.pluginName ]: ClipboardPipeline;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/utils/normalizeclipboarddata\n */\n\n/**\n * Removes some popular browser quirks out of the clipboard data (HTML).\n * Removes all HTML comments. These are considered an internal thing and it makes little sense if they leak into the editor data.\n *\n * @param {String} data The HTML data to normalize.\n * @returns {String} Normalized HTML.\n */\nexport default function normalizeClipboardData( data: string ): string {\n\treturn data\n\t\t.replace( /<span(?: class=\"Apple-converted-space\"|)>(\\s+)<\\/span>/g, ( fullMatch, spaces ) => {\n\t\t\t// Handle the most popular and problematic case when even a single space becomes an nbsp;.\n\t\t\t// Decode those to normal spaces. Read more in https://github.com/ckeditor/ckeditor5-clipboard/issues/2.\n\t\t\tif ( spaces.length == 1 ) {\n\t\t\t\treturn ' ';\n\t\t\t}\n\n\t\t\treturn spaces;\n\t\t} )\n\t\t// Remove all HTML comments.\n\t\t.replace( /<!--[\\s\\S]*?-->/g, '' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/utils/plaintexttohtml\n */\n\n/**\n * Converts plain text to its HTML-ized version.\n *\n * @param {String} text The plain text to convert.\n * @returns {String} HTML generated from the plain text.\n */\nexport default function plainTextToHtml( text: string ): string {\n\ttext = text\n\t\t// Encode <>.\n\t\t.replace( /</g, '&lt;' )\n\t\t.replace( />/g, '&gt;' )\n\t\t// Creates a paragraph for each double line break.\n\t\t.replace( /\\r?\\n\\r?\\n/g, '</p><p>' )\n\t\t// Creates a line break for each single line break.\n\t\t.replace( /\\r?\\n/g, '<br>' )\n\t\t// Replace tabs with four spaces.\n\t\t.replace( /\\t/g, '&nbsp;&nbsp;&nbsp;&nbsp;' )\n\t\t// Preserve trailing spaces (only the first and last one – the rest is handled below).\n\t\t.replace( /^\\s/, '&nbsp;' )\n\t\t.replace( /\\s$/, '&nbsp;' )\n\t\t// Preserve other subsequent spaces now.\n\t\t.replace( /\\s\\s/g, ' &nbsp;' );\n\n\tif ( text.includes( '</p><p>' ) || text.includes( '<br>' ) ) {\n\t\t// If we created paragraphs above, add the trailing ones.\n\t\ttext = `<p>${ text }</p>`;\n\t}\n\n\t// TODO:\n\t// * What about '\\nfoo' vs ' foo'?\n\n\treturn text;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./clipboard.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/dragdrop\n */\n\n/* globals setTimeout, clearTimeout */\n\nimport { Plugin, type Editor, type PluginDependencies } from '@ckeditor/ckeditor5-core';\n\nimport {\n\tLiveRange,\n\tMouseObserver,\n\ttype DataTransfer,\n\ttype Element,\n\ttype Position,\n\ttype Range,\n\ttype ViewDocumentMouseEvent,\n\ttype ViewElement,\n\ttype ViewRange\n} from '@ckeditor/ckeditor5-engine';\n\nimport { Widget, isWidget } from '@ckeditor/ckeditor5-widget';\n\nimport { env, uid, type ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\nimport ClipboardPipeline, { type ClipboardContentInsertionEvent, type ClipboardOutputEvent } from './clipboardpipeline';\nimport ClipboardObserver, { type ViewDocumentClipboardInputEvent, type ViewDocumentDragEvent } from './clipboardobserver';\n\nimport { type DebouncedFunc, throttle } from 'lodash-es';\n\nimport '../theme/clipboard.css';\n\n// Drag and drop events overview:\n//\n//                ┌──────────────────┐\n//                │     mousedown    │   Sets the draggable attribute.\n//                └─────────┬────────┘\n//                          │\n//                          └─────────────────────┐\n//                          │                     │\n//                          │           ┌─────────V────────┐\n//                          │           │      mouseup     │   Dragging did not start, removes the draggable attribute.\n//                          │           └──────────────────┘\n//                          │\n//                ┌─────────V────────┐   Retrieves the selected model.DocumentFragment\n//                │     dragstart    │   and converts it to view.DocumentFragment.\n//                └─────────┬────────┘\n//                          │\n//                ┌─────────V────────┐   Processes view.DocumentFragment to text/html and text/plain\n//                │  clipboardOutput │   and stores the results in data.dataTransfer.\n//                └─────────┬────────┘\n//                          │\n//                          │   DOM dragover\n//                          ┌────────────┐\n//                          │            │\n//                ┌─────────V────────┐   │\n//                │     dragging     │   │   Updates the drop target marker.\n//                └─────────┬────────┘   │\n//                          │            │\n//            ┌─────────────└────────────┘\n//            │             │            │\n//            │   ┌─────────V────────┐   │\n//            │   │     dragleave    │   │   Removes the drop target marker.\n//            │   └─────────┬────────┘   │\n//            │             │            │\n//        ┌───│─────────────┘            │\n//        │   │             │            │\n//        │   │   ┌─────────V────────┐   │\n//        │   │   │     dragenter    │   │   Focuses the editor view.\n//        │   │   └─────────┬────────┘   │\n//        │   │             │            │\n//        │   │             └────────────┘\n//        │   │\n//        │   └─────────────┐\n//        │   │             │\n//        │   │   ┌─────────V────────┐\n//        └───┐   │       drop       │   (The default handler of the clipboard pipeline).\n//            │   └─────────┬────────┘\n//            │             │\n//            │   ┌─────────V────────┐   Resolves the final data.targetRanges.\n//            │   │  clipboardInput  │   Aborts if dropping on dragged content.\n//            │   └─────────┬────────┘\n//            │             │\n//            │   ┌─────────V────────┐\n//            │   │  clipboardInput  │   (The default handler of the clipboard pipeline).\n//            │   └─────────┬────────┘\n//            │             │\n//            │ ┌───────────V───────────┐\n//            │ │  inputTransformation  │   (The default handler of the clipboard pipeline).\n//            │ └───────────┬───────────┘\n//            │             │\n//            │  ┌──────────V──────────┐\n//            │  │   contentInsertion  │   Updates the document selection to drop range.\n//            │  └──────────┬──────────┘\n//            │             │\n//            │  ┌──────────V──────────┐\n//            │  │   contentInsertion  │   (The default handler of the clipboard pipeline).\n//            │  └──────────┬──────────┘\n//            │             │\n//            │  ┌──────────V──────────┐\n//            │  │   contentInsertion  │   Removes the content from the original range if the insertion was successful.\n//            │  └──────────┬──────────┘\n//            │             │\n//            └─────────────┐\n//                          │\n//                ┌─────────V────────┐\n//                │      dragend     │   Removes the drop marker and cleans the state.\n//                └──────────────────┘\n//\n\n/**\n * The drag and drop feature. It works on top of the {@link module:clipboard/clipboardpipeline~ClipboardPipeline}.\n *\n * Read more about the clipboard integration in the {@glink framework/guides/deep-dive/clipboard clipboard deep-dive guide}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class DragDrop extends Plugin {\n\tprivate _draggedRange!: LiveRange | null;\n\tprivate _draggingUid!: string;\n\tprivate _draggableElement!: Element | null;\n\tprivate _updateDropMarkerThrottled!: DebouncedFunc<( targetRange: Range ) => void>;\n\tprivate _removeDropMarkerDelayed!: DelayedFunc<() => void>;\n\tprivate _clearDraggableAttributesDelayed!: DelayedFunc<() => void>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'DragDrop' {\n\t\treturn 'DragDrop';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ ClipboardPipeline, Widget ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\n\t\t/**\n\t\t * The live range over the original content that is being dragged.\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/liverange~LiveRange}\n\t\t */\n\t\tthis._draggedRange = null;\n\n\t\t/**\n\t\t * The UID of current dragging that is used to verify if the drop started in the same editor as the drag start.\n\t\t *\n\t\t * **Note**: This is a workaround for broken 'dragend' events (they are not fired if the source text node got removed).\n\t\t *\n\t\t * @private\n\t\t * @type {String}\n\t\t */\n\t\tthis._draggingUid = '';\n\n\t\t/**\n\t\t * The reference to the model element that currently has a `draggable` attribute set (it is set while dragging).\n\t\t *\n\t\t * @private\n\t\t * @type {module:engine/model/element~Element}\n\t\t */\n\t\tthis._draggableElement = null;\n\n\t\t/**\n\t\t * A throttled callback updating the drop marker.\n\t\t *\n\t\t * @private\n\t\t * @type {Function}\n\t\t */\n\t\tthis._updateDropMarkerThrottled = throttle( targetRange => this._updateDropMarker( targetRange ), 40 );\n\n\t\t/**\n\t\t * A delayed callback removing the drop marker.\n\t\t *\n\t\t * @private\n\t\t * @type {Function}\n\t\t */\n\t\tthis._removeDropMarkerDelayed = delay( () => this._removeDropMarker(), 40 );\n\n\t\t/**\n\t\t * A delayed callback removing draggable attributes.\n\t\t *\n\t\t * @private\n\t\t * @type {Function}\n\t\t */\n\t\tthis._clearDraggableAttributesDelayed = delay( () => this._clearDraggableAttributes(), 40 );\n\n\t\tview.addObserver( ClipboardObserver );\n\t\tview.addObserver( MouseObserver );\n\n\t\tthis._setupDragging();\n\t\tthis._setupContentInsertionIntegration();\n\t\tthis._setupClipboardInputIntegration();\n\t\tthis._setupDropMarker();\n\t\tthis._setupDraggableAttributeHandling();\n\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( editor, 'change:isReadOnly', ( evt, name, isReadOnly ) => {\n\t\t\tif ( isReadOnly ) {\n\t\t\t\tthis.forceDisabled( 'readOnlyMode' );\n\t\t\t} else {\n\t\t\t\tthis.clearForceDisabled( 'readOnlyMode' );\n\t\t\t}\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent<boolean>>( 'change:isEnabled', ( evt, name, isEnabled ) => {\n\t\t\tif ( !isEnabled ) {\n\t\t\t\tthis._finalizeDragging( false );\n\t\t\t}\n\t\t} );\n\n\t\tif ( env.isAndroid ) {\n\t\t\tthis.forceDisabled( 'noAndroidSupport' );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tif ( this._draggedRange ) {\n\t\t\tthis._draggedRange.detach();\n\t\t\tthis._draggedRange = null;\n\t\t}\n\n\t\tthis._updateDropMarkerThrottled.cancel();\n\t\tthis._removeDropMarkerDelayed.cancel();\n\t\tthis._clearDraggableAttributesDelayed.cancel();\n\n\t\treturn super.destroy();\n\t}\n\n\t/**\n\t * Drag and drop events handling.\n\t *\n\t * @private\n\t */\n\tprivate _setupDragging(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelDocument = model.document;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// The handler for the drag start; it is responsible for setting data transfer object.\n\t\tthis.listenTo<ViewDocumentDragEvent>( viewDocument, 'dragstart', ( evt, data ) => {\n\t\t\tconst selection = modelDocument.selection;\n\n\t\t\t// Don't drag the editable element itself.\n\t\t\tif ( data.target && data.target.is( 'editableElement' ) ) {\n\t\t\t\tdata.preventDefault();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// TODO we could clone this node somewhere and style it to match editing view but without handles,\n\t\t\t//  selection outline, WTA buttons, etc.\n\t\t\t// data.dataTransfer._native.setDragImage( data.domTarget, 0, 0 );\n\n\t\t\t// Check if this is dragstart over the widget (but not a nested editable).\n\t\t\tconst draggableWidget = data.target ? findDraggableWidget( data.target ) : null;\n\n\t\t\tif ( draggableWidget ) {\n\t\t\t\tconst modelElement = editor.editing.mapper.toModelElement( draggableWidget )!;\n\n\t\t\t\tthis._draggedRange = LiveRange.fromRange( model.createRangeOn( modelElement ) );\n\n\t\t\t\t// Disable toolbars so they won't obscure the drop area.\n\t\t\t\tif ( editor.plugins.has( 'WidgetToolbarRepository' ) ) {\n\t\t\t\t\teditor.plugins.get( 'WidgetToolbarRepository' ).forceDisabled( 'dragDrop' );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If this was not a widget we should check if we need to drag some text content.\n\t\t\telse if ( !viewDocument.selection.isCollapsed ) {\n\t\t\t\tconst selectedElement = viewDocument.selection.getSelectedElement();\n\n\t\t\t\tif ( !selectedElement || !isWidget( selectedElement ) ) {\n\t\t\t\t\tthis._draggedRange = LiveRange.fromRange( selection.getFirstRange()! );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( !this._draggedRange ) {\n\t\t\t\tdata.preventDefault();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._draggingUid = uid();\n\n\t\t\tdata.dataTransfer.effectAllowed = this.isEnabled ? 'copyMove' : 'copy';\n\t\t\tdata.dataTransfer.setData( 'application/ckeditor5-dragging-uid', this._draggingUid );\n\n\t\t\tconst draggedSelection = model.createSelection( this._draggedRange.toRange() );\n\t\t\tconst content = editor.data.toView( model.getSelectedContent( draggedSelection ) );\n\n\t\t\tviewDocument.fire<ClipboardOutputEvent>( 'clipboardOutput', {\n\t\t\t\tdataTransfer: data.dataTransfer,\n\t\t\t\tcontent,\n\t\t\t\tmethod: 'dragstart'\n\t\t\t} );\n\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tthis._draggedRange.detach();\n\t\t\t\tthis._draggedRange = null;\n\t\t\t\tthis._draggingUid = '';\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\t// The handler for finalizing drag and drop. It should always be triggered after dragging completes\n\t\t// even if it was completed in a different application.\n\t\t// Note: This is not fired if source text node got removed while downcasting a marker.\n\t\tthis.listenTo<ViewDocumentDragEvent>( viewDocument, 'dragend', ( evt, data ) => {\n\t\t\tthis._finalizeDragging( !data.dataTransfer.isCanceled && data.dataTransfer.dropEffect == 'move' );\n\t\t}, { priority: 'low' } );\n\n\t\t// Dragging over the editable.\n\t\tthis.listenTo<ViewDocumentDragEvent>( viewDocument, 'dragenter', () => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tview.focus();\n\t\t} );\n\n\t\t// Dragging out of the editable.\n\t\tthis.listenTo<ViewDocumentDragEvent>( viewDocument, 'dragleave', () => {\n\t\t\t// We do not know if the mouse left the editor or just some element in it, so let us wait a few milliseconds\n\t\t\t// to check if 'dragover' is not fired.\n\t\t\tthis._removeDropMarkerDelayed();\n\t\t} );\n\n\t\t// Handler for moving dragged content over the target area.\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( viewDocument, 'dragging', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tdata.dataTransfer.dropEffect = 'none';\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._removeDropMarkerDelayed.cancel();\n\n\t\t\tconst targetRange = findDropTargetRange( editor, data.targetRanges, data.target );\n\n\t\t\t// If this is content being dragged from another editor, moving out of current editor instance\n\t\t\t// is not possible until 'dragend' event case will be fixed.\n\t\t\tif ( !this._draggedRange ) {\n\t\t\t\tdata.dataTransfer.dropEffect = 'copy';\n\t\t\t}\n\n\t\t\t// In Firefox it is already set and effect allowed remains the same as originally set.\n\t\t\tif ( !env.isGecko ) {\n\t\t\t\tif ( data.dataTransfer.effectAllowed == 'copy' ) {\n\t\t\t\t\tdata.dataTransfer.dropEffect = 'copy';\n\t\t\t\t} else if ( [ 'all', 'copyMove' ].includes( data.dataTransfer.effectAllowed ) ) {\n\t\t\t\t\tdata.dataTransfer.dropEffect = 'move';\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/* istanbul ignore else */\n\t\t\tif ( targetRange ) {\n\t\t\t\tthis._updateDropMarkerThrottled( targetRange );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Integration with the `clipboardInput` event.\n\t *\n\t * @private\n\t */\n\tprivate _setupClipboardInputIntegration(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Update the event target ranges and abort dropping if dropping over itself.\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( viewDocument, 'clipboardInput', ( evt, data ) => {\n\t\t\tif ( data.method != 'drop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst targetRange = findDropTargetRange( editor, data.targetRanges, data.target );\n\n\t\t\t// The dragging markers must be removed after searching for the target range because sometimes\n\t\t\t// the target lands on the marker itself.\n\t\t\tthis._removeDropMarker();\n\n\t\t\t/* istanbul ignore if */\n\t\t\tif ( !targetRange ) {\n\t\t\t\tthis._finalizeDragging( false );\n\t\t\t\tevt.stop();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Since we cannot rely on the drag end event, we must check if the local drag range is from the current drag and drop\n\t\t\t// or it is from some previous not cleared one.\n\t\t\tif ( this._draggedRange && this._draggingUid != data.dataTransfer.getData( 'application/ckeditor5-dragging-uid' ) ) {\n\t\t\t\tthis._draggedRange.detach();\n\t\t\t\tthis._draggedRange = null;\n\t\t\t\tthis._draggingUid = '';\n\t\t\t}\n\n\t\t\t// Do not do anything if some content was dragged within the same document to the same position.\n\t\t\tconst isMove = getFinalDropEffect( data.dataTransfer ) == 'move';\n\n\t\t\tif ( isMove && this._draggedRange && this._draggedRange.containsRange( targetRange, true ) ) {\n\t\t\t\tthis._finalizeDragging( false );\n\t\t\t\tevt.stop();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Override the target ranges with the one adjusted to the best one for a drop.\n\t\t\tdata.targetRanges = [ editor.editing.mapper.toViewRange( targetRange ) ];\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Integration with the `contentInsertion` event of the clipboard pipeline.\n\t *\n\t * @private\n\t */\n\tprivate _setupContentInsertionIntegration(): void {\n\t\tconst clipboardPipeline = this.editor.plugins.get( ClipboardPipeline );\n\n\t\tclipboardPipeline.on<ClipboardContentInsertionEvent>( 'contentInsertion', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled || data.method !== 'drop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Update the selection to the target range in the same change block to avoid selection post-fixing\n\t\t\t// and to be able to clone text attributes for plain text dropping.\n\t\t\tconst ranges = data.targetRanges!.map( viewRange => this.editor.editing.mapper.toModelRange( viewRange ) );\n\n\t\t\tthis.editor.model.change( writer => writer.setSelection( ranges ) );\n\t\t}, { priority: 'high' } );\n\n\t\tclipboardPipeline.on<ClipboardContentInsertionEvent>( 'contentInsertion', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled || data.method !== 'drop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Remove dragged range content, remove markers, clean after dragging.\n\t\t\tconst isMove = getFinalDropEffect( data.dataTransfer ) == 'move';\n\n\t\t\t// Whether any content was inserted (insertion might fail if the schema is disallowing some elements\n\t\t\t// (for example an image caption allows only the content of a block but not blocks themselves.\n\t\t\t// Some integrations might not return valid range (i.e., table pasting).\n\t\t\tconst isSuccess = !data.resultRange || !data.resultRange.isCollapsed;\n\n\t\t\tthis._finalizeDragging( isSuccess && isMove );\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Adds listeners that add the `draggable` attribute to the elements while the mouse button is down so the dragging could start.\n\t *\n\t * @private\n\t */\n\tprivate _setupDraggableAttributeHandling(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Add the 'draggable' attribute to the widget while pressing the selection handle.\n\t\t// This is required for widgets to be draggable. In Chrome it will enable dragging text nodes.\n\t\tthis.listenTo<ViewDocumentMouseEvent>( viewDocument, 'mousedown', ( evt, data ) => {\n\t\t\t// The lack of data can be caused by editor tests firing fake mouse events. This should not occur\n\t\t\t// in real-life scenarios but this greatly simplifies editor tests that would otherwise fail a lot.\n\t\t\tif ( env.isAndroid || !data ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._clearDraggableAttributesDelayed.cancel();\n\n\t\t\t// Check if this is a mousedown over the widget (but not a nested editable).\n\t\t\tlet draggableElement = findDraggableWidget( data.target );\n\n\t\t\t// Note: There is a limitation that if more than a widget is selected (a widget and some text)\n\t\t\t// and dragging starts on the widget, then only the widget is dragged.\n\n\t\t\t// If this was not a widget then we should check if we need to drag some text content.\n\t\t\t// In Chrome set a 'draggable' attribute on closest editable to allow immediate dragging of the selected text range.\n\t\t\t// In Firefox this is not needed. In Safari it makes the whole editable draggable (not just textual content).\n\t\t\t// Disabled in read-only mode because draggable=\"true\" + contenteditable=\"false\" results\n\t\t\t// in not firing selectionchange event ever, which makes the selection stuck in read-only mode.\n\t\t\tif ( env.isBlink && !editor.isReadOnly && !draggableElement && !viewDocument.selection.isCollapsed ) {\n\t\t\t\tconst selectedElement = viewDocument.selection.getSelectedElement();\n\n\t\t\t\tif ( !selectedElement || !isWidget( selectedElement ) ) {\n\t\t\t\t\tdraggableElement = viewDocument.selection.editableElement;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( draggableElement ) {\n\t\t\t\tview.change( writer => {\n\t\t\t\t\twriter.setAttribute( 'draggable', 'true', draggableElement! );\n\t\t\t\t} );\n\n\t\t\t\t// Keep the reference to the model element in case the view element gets removed while dragging.\n\t\t\t\tthis._draggableElement = editor.editing.mapper.toModelElement( draggableElement )!;\n\t\t\t}\n\t\t} );\n\n\t\t// Remove the draggable attribute in case no dragging started (only mousedown + mouseup).\n\t\tthis.listenTo<ViewDocumentMouseEvent>( viewDocument, 'mouseup', () => {\n\t\t\tif ( !env.isAndroid ) {\n\t\t\t\tthis._clearDraggableAttributesDelayed();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes the `draggable` attribute from the element that was used for dragging.\n\t *\n\t * @private\n\t */\n\tprivate _clearDraggableAttributes(): void {\n\t\tconst editing = this.editor.editing;\n\n\t\tediting.view.change( writer => {\n\t\t\t// Remove 'draggable' attribute.\n\t\t\tif ( this._draggableElement && this._draggableElement.root.rootName != '$graveyard' ) {\n\t\t\t\twriter.removeAttribute( 'draggable', editing.mapper.toViewElement( this._draggableElement )! );\n\t\t\t}\n\n\t\t\tthis._draggableElement = null;\n\t\t} );\n\t}\n\n\t/**\n\t * Creates downcast conversion for the drop target marker.\n\t *\n\t * @private\n\t */\n\tprivate _setupDropMarker(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Drop marker conversion for hovering over widgets.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: 'drop-target',\n\t\t\tview: {\n\t\t\t\tclasses: [ 'ck-clipboard-drop-target-range' ]\n\t\t\t}\n\t\t} );\n\n\t\t// Drop marker conversion for in text drop target.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t\t\tmodel: 'drop-target',\n\t\t\tview: ( data, { writer } ) => {\n\t\t\t\tconst inText = editor.model.schema.checkChild( data.markerRange.start, '$text' );\n\n\t\t\t\tif ( !inText ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createUIElement( 'span', { class: 'ck ck-clipboard-drop-target-position' }, function( domDocument ) {\n\t\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\t\t// Using word joiner to make this marker as high as text and also making text not break on marker.\n\t\t\t\t\tdomElement.append( '\\u2060', domDocument.createElement( 'span' ), '\\u2060' );\n\n\t\t\t\t\treturn domElement;\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Updates the drop target marker to the provided range.\n\t *\n\t * @private\n\t * @param {module:engine/model/range~Range} targetRange The range to set the marker to.\n\t */\n\tprivate _updateDropMarker( targetRange: Range ): void {\n\t\tconst editor = this.editor;\n\t\tconst markers = editor.model.markers;\n\n\t\teditor.model.change( writer => {\n\t\t\tif ( markers.has( 'drop-target' ) ) {\n\t\t\t\tif ( !markers.get( 'drop-target' )!.getRange().isEqual( targetRange ) ) {\n\t\t\t\t\twriter.updateMarker( 'drop-target', { range: targetRange } );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\twriter.addMarker( 'drop-target', {\n\t\t\t\t\trange: targetRange,\n\t\t\t\t\tusingOperation: false,\n\t\t\t\t\taffectsData: false\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes the drop target marker.\n\t *\n\t * @private\n\t */\n\tprivate _removeDropMarker(): void {\n\t\tconst model = this.editor.model;\n\n\t\tthis._removeDropMarkerDelayed.cancel();\n\t\tthis._updateDropMarkerThrottled.cancel();\n\n\t\tif ( model.markers.has( 'drop-target' ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.removeMarker( 'drop-target' );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Deletes the dragged content from its original range and clears the dragging state.\n\t *\n\t * @private\n\t * @param {Boolean} moved Whether the move succeeded.\n\t */\n\tprivate _finalizeDragging( moved: boolean ): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tthis._removeDropMarker();\n\t\tthis._clearDraggableAttributes();\n\n\t\tif ( editor.plugins.has( 'WidgetToolbarRepository' ) ) {\n\t\t\teditor.plugins.get( 'WidgetToolbarRepository' ).clearForceDisabled( 'dragDrop' );\n\t\t}\n\n\t\tthis._draggingUid = '';\n\n\t\tif ( !this._draggedRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Delete moved content.\n\t\tif ( moved && this.isEnabled ) {\n\t\t\tmodel.deleteContent( model.createSelection( this._draggedRange ), { doNotAutoparagraph: true } );\n\t\t}\n\n\t\tthis._draggedRange.detach();\n\t\tthis._draggedRange = null;\n\t}\n}\n\n// Returns fixed selection range for given position and target element.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {Array.<module:engine/view/range~Range>} targetViewRanges\n// @param {module:engine/view/element~Element} targetViewElement\n// @returns {module:engine/model/range~Range|null}\nfunction findDropTargetRange( editor: Editor, targetViewRanges: Array<ViewRange> | null, targetViewElement: ViewElement ): Range | null {\n\tconst model = editor.model;\n\tconst mapper = editor.editing.mapper;\n\n\tlet range: Range | null = null;\n\n\tconst targetViewPosition = targetViewRanges ? targetViewRanges[ 0 ].start : null;\n\n\t// A UIElement is not a valid drop element, use parent (this could be a drop marker or any other UIElement).\n\tif ( targetViewElement.is( 'uiElement' ) ) {\n\t\ttargetViewElement = targetViewElement.parent as ViewElement;\n\t}\n\n\t// Quick win if the target is a widget (but not a nested editable).\n\trange = findDropTargetRangeOnWidget( editor, targetViewElement );\n\n\tif ( range ) {\n\t\treturn range;\n\t}\n\n\t// The easiest part is over, now we need to move to the model space.\n\n\t// Find target model element and position.\n\tconst targetModelElement = getClosestMappedModelElement( editor, targetViewElement );\n\tconst targetModelPosition = targetViewPosition ? mapper.toModelPosition( targetViewPosition ) : null;\n\n\t// There is no target position while hovering over an empty table cell.\n\t// In Safari, target position can be empty while hovering over a widget (e.g., a page-break).\n\t// Find the drop position inside the element.\n\tif ( !targetModelPosition ) {\n\t\treturn findDropTargetRangeInElement( editor, targetModelElement );\n\t}\n\n\t// Check if target position is between blocks and adjust drop position to the next object.\n\t// This is because while hovering over a root element next to a widget the target position can jump in crazy places.\n\trange = findDropTargetRangeBetweenBlocks( editor, targetModelPosition, targetModelElement );\n\n\tif ( range ) {\n\t\treturn range;\n\t}\n\n\t// Try fixing selection position.\n\t// In Firefox, the target position lands before widgets but in other browsers it tends to land after a widget.\n\trange = model.schema.getNearestSelectionRange( targetModelPosition, env.isGecko ? 'forward' : 'backward' );\n\n\tif ( range ) {\n\t\treturn range;\n\t}\n\n\t// There is no valid selection position inside the current limit element so find a closest object ancestor.\n\t// This happens if the model position lands directly in the <table> element itself (view target element was a `<td>`\n\t// so a nested editable, but view target position was directly in the `<figure>` element).\n\treturn findDropTargetRangeOnAncestorObject( editor, targetModelPosition.parent as Element );\n}\n\n// Returns fixed selection range for a given position and a target element if it is over the widget but not over its nested editable.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {module:engine/view/element~Element} targetViewElement\n// @returns {module:engine/model/range~Range|null}\nfunction findDropTargetRangeOnWidget( editor: Editor, targetViewElement: ViewElement ): Range | null {\n\tconst model = editor.model;\n\tconst mapper = editor.editing.mapper;\n\n\t// Quick win if the target is a widget.\n\tif ( isWidget( targetViewElement ) ) {\n\t\treturn model.createRangeOn( mapper.toModelElement( targetViewElement )! );\n\t}\n\n\t// Check if we are deeper over a widget (but not over a nested editable).\n\tif ( !targetViewElement.is( 'editableElement' ) ) {\n\t\t// Find a closest ancestor that is either a widget or an editable element...\n\t\tconst ancestor = targetViewElement.findAncestor( node => isWidget( node ) || node.is( 'editableElement' ) )!;\n\n\t\t// ...and if the widget was closer then it is a drop target.\n\t\tif ( isWidget( ancestor ) ) {\n\t\t\treturn model.createRangeOn( mapper.toModelElement( ancestor! )! );\n\t\t}\n\t}\n\n\treturn null;\n}\n\n// Returns fixed selection range inside a model element.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {module:engine/model/element~Element} targetModelElement\n// @returns {module:engine/model/range~Range}\nfunction findDropTargetRangeInElement( editor: Editor, targetModelElement: Element ): Range | null {\n\tconst model = editor.model;\n\tconst schema = model.schema;\n\n\tconst positionAtElementStart = model.createPositionAt( targetModelElement, 0 );\n\n\treturn schema.getNearestSelectionRange( positionAtElementStart, 'forward' );\n}\n\n// Returns fixed selection range for a given position and a target element if the drop is between blocks.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {module:engine/model/position~Position} targetModelPosition\n// @param {module:engine/model/element~Element} targetModelElement\n// @returns {module:engine/model/range~Range|null}\nfunction findDropTargetRangeBetweenBlocks( editor: Editor, targetModelPosition: Position, targetModelElement: Element ): Range | null {\n\tconst model = editor.model;\n\n\t// Check if target is between blocks.\n\tif ( !model.schema.checkChild( targetModelElement, '$block' ) ) {\n\t\treturn null;\n\t}\n\n\t// Find position between blocks.\n\tconst positionAtElementStart = model.createPositionAt( targetModelElement, 0 );\n\n\t// Get the common part of the path (inside the target element and the target position).\n\tconst commonPath = targetModelPosition.path.slice( 0, positionAtElementStart.path.length );\n\n\t// Position between the blocks.\n\tconst betweenBlocksPosition = model.createPositionFromPath( targetModelPosition.root, commonPath );\n\tconst nodeAfter = betweenBlocksPosition.nodeAfter;\n\n\t// Adjust drop position to the next object.\n\t// This is because while hovering over a root element next to a widget the target position can jump in crazy places.\n\tif ( nodeAfter && model.schema.isObject( nodeAfter ) ) {\n\t\treturn model.createRangeOn( nodeAfter );\n\t}\n\n\treturn null;\n}\n\n// Returns a selection range on the ancestor object.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {module:engine/model/element~Element} element\n// @returns {module:engine/model/range~Range}\nfunction findDropTargetRangeOnAncestorObject( editor: Editor, element: Element ): Range | null {\n\tconst model = editor.model;\n\tlet currentElement: Element | null = element;\n\n\twhile ( currentElement ) {\n\t\tif ( model.schema.isObject( currentElement ) ) {\n\t\t\treturn model.createRangeOn( currentElement );\n\t\t}\n\n\t\tcurrentElement = currentElement.parent as Element | null;\n\t}\n\n\t/* istanbul ignore next */\n\treturn null;\n}\n\n// Returns the closest model element for the specified view element.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {module:engine/view/element~Element} element\n// @returns {module:engine/model/element~Element}\nfunction getClosestMappedModelElement( editor: Editor, element: ViewElement ): Element {\n\tconst mapper = editor.editing.mapper;\n\tconst view = editor.editing.view;\n\n\tconst targetModelElement = mapper.toModelElement( element );\n\n\tif ( targetModelElement ) {\n\t\treturn targetModelElement;\n\t}\n\n\t// Find mapped ancestor if the target is inside not mapped element (for example inline code element).\n\tconst viewPosition = view.createPositionBefore( element );\n\tconst viewElement = mapper.findMappedViewAncestor( viewPosition );\n\n\treturn mapper.toModelElement( viewElement )!;\n}\n\n// Returns the drop effect that should be a result of dragging the content.\n// This function is handling a quirk when checking the effect in the 'drop' DOM event.\nfunction getFinalDropEffect( dataTransfer: DataTransfer ): DataTransfer[ 'dropEffect' ] {\n\tif ( env.isGecko ) {\n\t\treturn dataTransfer.dropEffect;\n\t}\n\n\treturn [ 'all', 'copyMove' ].includes( dataTransfer.effectAllowed ) ? 'move' : 'copy';\n}\n\n// Returns a function wrapper that will trigger a function after a specified wait time.\n// The timeout can be canceled by calling the cancel function on the returned wrapped function.\n//\n// @param {Function} func The function to wrap.\n// @param {Number} wait The timeout in ms.\n// @returns {Function}\nfunction delay<T extends ( ...args: Array<any> ) => any>( func: T, wait: number ): DelayedFunc<T> {\n\tlet timer: ReturnType<typeof setTimeout>;\n\n\tfunction delayed( ...args: Parameters<T> ) {\n\t\tdelayed.cancel();\n\t\ttimer = setTimeout( () => func( ...args ), wait );\n\t}\n\n\tdelayed.cancel = () => {\n\t\tclearTimeout( timer );\n\t};\n\n\treturn delayed;\n}\n\ninterface DelayedFunc<T extends ( ...args: Array<any> ) => any> {\n\t( ...args: Parameters<T> ): void;\n\tcancel(): void;\n}\n\n// Returns a widget element that should be dragged.\n//\n// @param {module:engine/view/element~Element} target\n// @returns {module:engine/view/element~Element}\nfunction findDraggableWidget( target: ViewElement ): ViewElement | null {\n\t// This is directly an editable so not a widget for sure.\n\tif ( target.is( 'editableElement' ) ) {\n\t\treturn null;\n\t}\n\n\t// TODO: Let's have a isWidgetSelectionHandleDomElement() helper in ckeditor5-widget utils.\n\tif ( target.hasClass( 'ck-widget__selection-handle' ) ) {\n\t\treturn target.findAncestor( isWidget );\n\t}\n\n\t// Direct hit on a widget.\n\tif ( isWidget( target ) ) {\n\t\treturn target;\n\t}\n\n\t// Find closest ancestor that is either a widget or an editable element...\n\tconst ancestor = target.findAncestor( node => isWidget( node ) || node.is( 'editableElement' ) )!;\n\n\t// ...and if closer was the widget then enable dragging it.\n\tif ( isWidget( ancestor ) ) {\n\t\treturn ancestor;\n\t}\n\n\treturn null;\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ DragDrop.pluginName ]: DragDrop;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/pasteplaintext\n */\n\nimport { Plugin, type PluginDependencies } from '@ckeditor/ckeditor5-core';\n\nimport type { DocumentFragment, Schema, ViewDocumentKeyEvent } from '@ckeditor/ckeditor5-engine';\n\nimport ClipboardObserver from './clipboardobserver';\nimport ClipboardPipeline, { type ClipboardContentInsertionEvent } from './clipboardpipeline';\n\n/**\n * The plugin detects the user's intention to paste plain text.\n *\n * For example, it detects the <kbd>Ctrl/Cmd</kbd> + <kbd>Shift</kbd> + <kbd>V</kbd> keystroke.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class PastePlainText extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'PastePlainText' {\n\t\treturn 'PastePlainText';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ ClipboardPipeline ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst selection = model.document.selection;\n\n\t\tlet shiftPressed = false;\n\n\t\tview.addObserver( ClipboardObserver );\n\n\t\tthis.listenTo<ViewDocumentKeyEvent>( viewDocument, 'keydown', ( evt, data ) => {\n\t\t\tshiftPressed = data.shiftKey;\n\t\t} );\n\n\t\teditor.plugins.get( ClipboardPipeline ).on<ClipboardContentInsertionEvent>( 'contentInsertion', ( evt, data ) => {\n\t\t\t// Plain text can be determined based on the event flag (#7799) or auto-detection (#1006). If detected,\n\t\t\t// preserve selection attributes on pasted items.\n\t\t\tif ( !shiftPressed && !isPlainTextFragment( data.content, model.schema ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\t// Formatting attributes should be preserved.\n\t\t\t\tconst textAttributes = Array.from( selection.getAttributes() )\n\t\t\t\t\t.filter( ( [ key ] ) => model.schema.getAttributeProperties( key ).isFormatting );\n\n\t\t\t\tif ( !selection.isCollapsed ) {\n\t\t\t\t\tmodel.deleteContent( selection, { doNotAutoparagraph: true } );\n\t\t\t\t}\n\n\t\t\t\t// Also preserve other attributes if they survived the content deletion (because they were not fully selected).\n\t\t\t\t// For example linkHref is not a formatting attribute but it should be preserved if pasted text was in the middle\n\t\t\t\t// of a link.\n\t\t\t\ttextAttributes.push( ...selection.getAttributes() );\n\n\t\t\t\tconst range = writer.createRangeIn( data.content );\n\n\t\t\t\tfor ( const item of range.getItems() ) {\n\t\t\t\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\t\t\t\twriter.setAttributes( textAttributes, item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n}\n\n// Returns true if specified `documentFragment` represents a plain text.\n//\n// @param {module:engine/view/documentfragment~DocumentFragment} documentFragment\n// @param {module:engine/model/schema~Schema} schema\n// @returns {Boolean}\nfunction isPlainTextFragment( documentFragment: DocumentFragment, schema: Schema ) {\n\tif ( documentFragment.childCount > 1 ) {\n\t\treturn false;\n\t}\n\n\tconst child = documentFragment.getChild( 0 )!;\n\n\tif ( schema.isObject( child ) ) {\n\t\treturn false;\n\t}\n\n\treturn Array.from( child.getAttributeKeys() ).length == 0;\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ PastePlainText.pluginName ]: PastePlainText;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/clipboard\n */\n\nimport { Plugin, type PluginDependencies } from '@ckeditor/ckeditor5-core';\n\nimport ClipboardPipeline from './clipboardpipeline';\nimport DragDrop from './dragdrop';\nimport PastePlainText from './pasteplaintext';\n\n/**\n * The clipboard feature.\n *\n * Read more about the clipboard integration in the {@glink framework/guides/deep-dive/clipboard clipboard deep-dive guide}.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n * * {@link module:clipboard/clipboardpipeline~ClipboardPipeline}\n * * {@link module:clipboard/dragdrop~DragDrop}\n * * {@link module:clipboard/pasteplaintext~PastePlainText}\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Clipboard extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Clipboard' {\n\t\treturn 'Clipboard';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ ClipboardPipeline, DragDrop, PastePlainText ];\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ Clipboard.pluginName ]: Clipboard;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/converters\n */\n\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * Returns a function that converts the image view representation:\n *\n *\t\t<figure class=\"image\"><img src=\"...\" alt=\"...\"></img></figure>\n *\n * to the model representation:\n *\n *\t\t<imageBlock src=\"...\" alt=\"...\"></imageBlock>\n *\n * The entire content of the `<figure>` element except the first `<img>` is being converted as children\n * of the `<imageBlock>` model element.\n *\n * @protected\n * @param {module:image/imageutils~ImageUtils} imageUtils\n * @returns {Function}\n */\nexport function upcastImageFigure( imageUtils ) {\n\treturn dispatcher => {\n\t\tdispatcher.on( 'element:figure', converter );\n\t};\n\n\tfunction converter( evt, data, conversionApi ) {\n\t\t// Do not convert if this is not an \"image figure\".\n\t\tif ( !conversionApi.consumable.test( data.viewItem, { name: true, classes: 'image' } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Find an image element inside the figure element.\n\t\tconst viewImage = imageUtils.findViewImgElement( data.viewItem );\n\n\t\t// Do not convert if image element is absent or was already converted.\n\t\tif ( !viewImage || !conversionApi.consumable.test( viewImage, { name: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Consume the figure to prevent other converters from processing it again.\n\t\tconversionApi.consumable.consume( data.viewItem, { name: true, classes: 'image' } );\n\n\t\t// Convert view image to model image.\n\t\tconst conversionResult = conversionApi.convertItem( viewImage, data.modelCursor );\n\n\t\t// Get image element from conversion result.\n\t\tconst modelImage = first( conversionResult.modelRange.getItems() );\n\n\t\t// When image wasn't successfully converted then finish conversion.\n\t\tif ( !modelImage ) {\n\t\t\t// Revert consumed figure so other features can convert it.\n\t\t\tconversionApi.consumable.revert( data.viewItem, { name: true, classes: 'image' } );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Convert rest of the figure element's children as an image children.\n\t\tconversionApi.convertChildren( data.viewItem, modelImage );\n\n\t\tconversionApi.updateConversionResult( modelImage, data );\n\t}\n}\n\n/**\n * Returns a function that converts the image view representation:\n *\n *\t\t<picture><source ... /><source ... />...<img ... /></picture>\n *\n * to the model representation as the `sources` attribute:\n *\n *\t\t<image[Block|Inline] ... sources=\"...\"></image[Block|Inline]>\n *\n * @protected\n * @param {module:image/imageutils~ImageUtils} imageUtils\n * @returns {Function}\n */\nexport function upcastPicture( imageUtils ) {\n\tconst sourceAttributeNames = [ 'srcset', 'media', 'type', 'sizes' ];\n\n\treturn dispatcher => {\n\t\tdispatcher.on( 'element:picture', converter );\n\t};\n\n\tfunction converter( evt, data, conversionApi ) {\n\t\tconst pictureViewElement = data.viewItem;\n\n\t\t// Do not convert <picture> if already consumed.\n\t\tif ( !conversionApi.consumable.test( pictureViewElement, { name: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst sources = new Map();\n\n\t\t// Collect all <source /> elements attribute values.\n\t\tfor ( const childSourceElement of pictureViewElement.getChildren() ) {\n\t\t\tif ( childSourceElement.is( 'element', 'source' ) ) {\n\t\t\t\tconst attributes = {};\n\n\t\t\t\tfor ( const name of sourceAttributeNames ) {\n\t\t\t\t\tif ( childSourceElement.hasAttribute( name ) ) {\n\t\t\t\t\t\t// Don't collect <source /> attribute if already consumed somewhere else.\n\t\t\t\t\t\tif ( conversionApi.consumable.test( childSourceElement, { attributes: name } ) ) {\n\t\t\t\t\t\t\tattributes[ name ] = childSourceElement.getAttribute( name );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( Object.keys( attributes ).length ) {\n\t\t\t\t\tsources.set( childSourceElement, attributes );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst imgViewElement = imageUtils.findViewImgElement( pictureViewElement );\n\n\t\t// Don't convert when a picture has no <img/> inside (it is broken).\n\t\tif ( !imgViewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet modelImage = data.modelCursor.parent;\n\n\t\t// - In case of an inline image (cursor parent in a <paragraph>), the <img/> must be converted right away\n\t\t// because no converter handled it yet and otherwise there would be no model element to set the sources attribute on.\n\t\t// - In case of a block image, the <figure class=\"image\"> converter (in ImageBlockEditing) converts the\n\t\t// <img/> right away on its own and the modelCursor is already inside an imageBlock and there's nothing special\n\t\t// to do here.\n\t\tif ( !modelImage.is( 'element', 'imageBlock' ) ) {\n\t\t\tconst conversionResult = conversionApi.convertItem( imgViewElement, data.modelCursor );\n\n\t\t\t// Set image range as conversion result.\n\t\t\tdata.modelRange = conversionResult.modelRange;\n\n\t\t\t// Continue conversion where image conversion ends.\n\t\t\tdata.modelCursor = conversionResult.modelCursor;\n\n\t\t\tmodelImage = first( conversionResult.modelRange.getItems() );\n\t\t}\n\n\t\tconversionApi.consumable.consume( pictureViewElement, { name: true } );\n\n\t\t// Consume only these <source/> attributes that were actually collected and will be passed on\n\t\t// to the image model element.\n\t\tfor ( const [ sourceElement, attributes ] of sources ) {\n\t\t\tconversionApi.consumable.consume( sourceElement, { attributes: Object.keys( attributes ) } );\n\t\t}\n\n\t\tif ( sources.size ) {\n\t\t\tconversionApi.writer.setAttribute( 'sources', Array.from( sources.values() ), modelImage );\n\t\t}\n\n\t\t// Convert rest of the <picture> children as an image children. Other converters may want to consume them.\n\t\tconversionApi.convertChildren( pictureViewElement, modelImage );\n\t}\n}\n\n/**\n * Converter used to convert the `srcset` model image attribute to the `srcset`, `sizes` and `width` attributes in the view.\n *\n * @protected\n * @param {module:image/imageutils~ImageUtils} imageUtils\n * @param {'imageBlock'|'imageInline'} imageType The type of the image.\n * @returns {Function}\n */\nexport function downcastSrcsetAttribute( imageUtils, imageType ) {\n\treturn dispatcher => {\n\t\tdispatcher.on( `attribute:srcset:${ imageType }`, converter );\n\t};\n\n\tfunction converter( evt, data, conversionApi ) {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst writer = conversionApi.writer;\n\t\tconst element = conversionApi.mapper.toViewElement( data.item );\n\t\tconst img = imageUtils.findViewImgElement( element );\n\n\t\tif ( data.attributeNewValue === null ) {\n\t\t\tconst srcset = data.attributeOldValue;\n\n\t\t\tif ( srcset.data ) {\n\t\t\t\twriter.removeAttribute( 'srcset', img );\n\t\t\t\twriter.removeAttribute( 'sizes', img );\n\n\t\t\t\tif ( srcset.width ) {\n\t\t\t\t\twriter.removeAttribute( 'width', img );\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\tconst srcset = data.attributeNewValue;\n\n\t\t\tif ( srcset.data ) {\n\t\t\t\twriter.setAttribute( 'srcset', srcset.data, img );\n\t\t\t\t// Always outputting `100vw`. See https://github.com/ckeditor/ckeditor5-image/issues/2.\n\t\t\t\twriter.setAttribute( 'sizes', '100vw', img );\n\n\t\t\t\tif ( srcset.width ) {\n\t\t\t\t\twriter.setAttribute( 'width', srcset.width, img );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Converts the `source` model attribute to the `<picture><source /><source />...<img /></picture>`\n * view structure.\n *\n * @protected\n * @param {module:image/imageutils~ImageUtils} imageUtils\n * @returns {Function}\n */\nexport function downcastSourcesAttribute( imageUtils ) {\n\treturn dispatcher => {\n\t\tdispatcher.on( 'attribute:sources:imageBlock', converter );\n\t\tdispatcher.on( 'attribute:sources:imageInline', converter );\n\t};\n\n\tfunction converter( evt, data, conversionApi ) {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst element = conversionApi.mapper.toViewElement( data.item );\n\t\tconst imgElement = imageUtils.findViewImgElement( element );\n\n\t\tif ( data.attributeNewValue && data.attributeNewValue.length ) {\n\t\t\t// Make sure <picture> does not break attribute elements, for instance <a> in linked images.\n\t\t\tconst pictureElement = viewWriter.createContainerElement( 'picture', null,\n\t\t\t\tdata.attributeNewValue.map( sourceAttributes => {\n\t\t\t\t\treturn viewWriter.createEmptyElement( 'source', sourceAttributes );\n\t\t\t\t} )\n\t\t\t);\n\n\t\t\t// Collect all wrapping attribute elements.\n\t\t\tconst attributeElements = [];\n\t\t\tlet viewElement = imgElement.parent;\n\n\t\t\twhile ( viewElement && viewElement.is( 'attributeElement' ) ) {\n\t\t\t\tconst parentElement = viewElement.parent;\n\n\t\t\t\tviewWriter.unwrap( viewWriter.createRangeOn( imgElement ), viewElement );\n\n\t\t\t\tattributeElements.unshift( viewElement );\n\t\t\t\tviewElement = parentElement;\n\t\t\t}\n\n\t\t\t// Insert the picture and move img into it.\n\t\t\tviewWriter.insert( viewWriter.createPositionBefore( imgElement ), pictureElement );\n\t\t\tviewWriter.move( viewWriter.createRangeOn( imgElement ), viewWriter.createPositionAt( pictureElement, 'end' ) );\n\n\t\t\t// Apply collected attribute elements over the new picture element.\n\t\t\tfor ( const attributeElement of attributeElements ) {\n\t\t\t\tviewWriter.wrap( viewWriter.createRangeOn( pictureElement ), attributeElement );\n\t\t\t}\n\t\t}\n\t\t// Both setting \"sources\" to an empty array and removing the attribute should unwrap the <img />.\n\t\t// Unwrap once if the latter followed the former, though.\n\t\telse if ( imgElement.parent.is( 'element', 'picture' ) ) {\n\t\t\tconst pictureElement = imgElement.parent;\n\n\t\t\tviewWriter.move( viewWriter.createRangeOn( imgElement ), viewWriter.createPositionBefore( pictureElement ) );\n\t\t\tviewWriter.remove( pictureElement );\n\t\t}\n\t}\n}\n\n/**\n * Converter used to convert a given image attribute from the model to the view.\n *\n * @protected\n * @param {module:image/imageutils~ImageUtils} imageUtils\n * @param {'imageBlock'|'imageInline'} imageType The type of the image.\n * @param {String} attributeKey The name of the attribute to convert.\n * @returns {Function}\n */\nexport function downcastImageAttribute( imageUtils, imageType, attributeKey ) {\n\treturn dispatcher => {\n\t\tdispatcher.on( `attribute:${ attributeKey }:${ imageType }`, converter );\n\t};\n\n\tfunction converter( evt, data, conversionApi ) {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst element = conversionApi.mapper.toViewElement( data.item );\n\t\tconst img = imageUtils.findViewImgElement( element );\n\n\t\tviewWriter.setAttribute( data.attributeKey, data.attributeNewValue || '', img );\n\t}\n}\n\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageloadobserver\n */\n\nimport { Observer } from 'ckeditor5/src/engine';\n\n/**\n * Observes all new images added to the {@link module:engine/view/document~Document},\n * fires {@link module:engine/view/document~Document#event:imageLoaded} and\n * {@link module:engine/view/document~Document#event:layoutChanged} event every time when the new image\n * has been loaded.\n *\n * **Note:** This event is not fired for images that has been added to the document and rendered as `complete` (already loaded).\n *\n * @extends module:engine/view/observer/observer~Observer\n */\nexport default class ImageLoadObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tobserve( domRoot ) {\n\t\tthis.listenTo( domRoot, 'load', ( event, domEvent ) => {\n\t\t\tconst domElement = domEvent.target;\n\n\t\t\tif ( this.checkShouldIgnoreEventFromTarget( domElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( domElement.tagName == 'IMG' ) {\n\t\t\t\tthis._fireEvents( domEvent );\n\t\t\t}\n\t\t\t// Use capture phase for better performance (#4504).\n\t\t}, { useCapture: true } );\n\t}\n\n\t/**\n\t * Fires {@link module:engine/view/document~Document#event:layoutChanged} and\n\t * {@link module:engine/view/document~Document#event:imageLoaded}\n\t * if observer {@link #isEnabled is enabled}.\n\t *\n\t * @protected\n\t * @param {Event} domEvent The DOM event.\n\t */\n\t_fireEvents( domEvent ) {\n\t\tif ( this.isEnabled ) {\n\t\t\tthis.document.fire( 'layoutChanged' );\n\t\t\tthis.document.fire( 'imageLoaded', domEvent );\n\t\t}\n\t}\n}\n\n/**\n * Fired when an <img/> DOM element has been loaded in the DOM root.\n *\n * Introduced by {@link module:image/image/imageloadobserver~ImageLoadObserver}.\n *\n * @see module:image/image/imageloadobserver~ImageLoadObserver\n * @event module:engine/view/document~Document#event:imageLoaded\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { logWarning, toArray } from 'ckeditor5/src/utils';\n\n/**\n * @module image/image/insertimagecommand\n */\n\n/**\n * Insert image command.\n *\n * The command is registered by the {@link module:image/image/imageediting~ImageEditing} plugin as `insertImage`\n * and it is also available via aliased `imageInsert` name.\n *\n * In order to insert an image at the current selection position\n * (according to the {@link module:widget/utils~findOptimalInsertionRange} algorithm),\n * execute the command and specify the image source:\n *\n *\t\teditor.execute( 'insertImage', { source: 'http://url.to.the/image' } );\n *\n * It is also possible to insert multiple images at once:\n *\n *\t\teditor.execute( 'insertImage', {\n *\t\t\tsource:  [\n *\t\t\t\t'path/to/image.jpg',\n *\t\t\t\t'path/to/other-image.jpg'\n *\t\t\t]\n *\t\t} );\n *\n * If you want to take the full control over the process, you can specify individual model attributes:\n *\n *\t\teditor.execute( 'insertImage', {\n *\t\t\tsource:  [\n *\t\t\t\t{ src: 'path/to/image.jpg', alt: 'First alt text' },\n *\t\t\t\t{ src: 'path/to/other-image.jpg', alt: 'Second alt text', customAttribute: 'My attribute value' }\n *\t\t\t]\n *\t\t} );\n *\n * @extends module:core/command~Command\n */\nexport default class InsertImageCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\tconst configImageInsertType = editor.config.get( 'image.insert.type' );\n\n\t\tif ( !editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\tif ( configImageInsertType === 'block' ) {\n\t\t\t\t/**\n\t\t\t\t * The {@link module:image/imageblock~ImageBlock} plugin must be enabled to allow inserting block images. See\n\t\t\t\t * {@link module:image/imageinsert~ImageInsertConfig#type} to learn more.\n\t\t\t\t *\n\t\t\t\t * @error image-block-plugin-required\n\t\t\t\t */\n\t\t\t\tlogWarning( 'image-block-plugin-required' );\n\t\t\t}\n\t\t}\n\n\t\tif ( !editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\tif ( configImageInsertType === 'inline' ) {\n\t\t\t\t/**\n\t\t\t\t * The {@link module:image/imageinline~ImageInline} plugin must be enabled to allow inserting inline images. See\n\t\t\t\t * {@link module:image/imageinsert~ImageInsertConfig#type} to learn more.\n\t\t\t\t *\n\t\t\t\t * @error image-inline-plugin-required\n\t\t\t\t */\n\t\t\t\tlogWarning( 'image-inline-plugin-required' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.isEnabled = this.editor.plugins.get( 'ImageUtils' ).isImageAllowed();\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} options Options for the executed command.\n\t * @param {String|Array.<String>|Array.<Object>} options.source The image source or an array of image sources to insert.\n\t * See the documentation of the command to learn more about accepted formats.\n\t */\n\texecute( options ) {\n\t\tconst sourceDefinitions = toArray( options.source );\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst imageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\t// In case of multiple images, each image (starting from the 2nd) will be inserted at a position that\n\t\t// follows the previous one. That will move the selection and, to stay on the safe side and make sure\n\t\t// all images inherit the same selection attributes, they are collected beforehand.\n\t\t//\n\t\t// Applying these attributes ensures, for instance, that inserting an (inline) image into a link does\n\t\t// not split that link but preserves its continuity.\n\t\t//\n\t\t// Note: Selection attributes that do not make sense for images will be filtered out by insertImage() anyway.\n\t\tconst selectionAttributes = Object.fromEntries( selection.getAttributes() );\n\n\t\tsourceDefinitions.forEach( ( sourceDefinition, index ) => {\n\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\tif ( typeof sourceDefinition === 'string' ) {\n\t\t\t\tsourceDefinition = { src: sourceDefinition };\n\t\t\t}\n\n\t\t\t// Inserting of an inline image replace the selected element and make a selection on the inserted image.\n\t\t\t// Therefore inserting multiple inline images requires creating position after each element.\n\t\t\tif ( index && selectedElement && imageUtils.isImage( selectedElement ) ) {\n\t\t\t\tconst position = this.editor.model.createPositionAfter( selectedElement );\n\n\t\t\t\timageUtils.insertImage( { ...sourceDefinition, ...selectionAttributes }, position );\n\t\t\t} else {\n\t\t\t\timageUtils.insertImage( { ...sourceDefinition, ...selectionAttributes } );\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageLoadObserver from './imageloadobserver';\nimport InsertImageCommand from './insertimagecommand';\nimport ImageUtils from '../imageutils';\n\n/**\n * The image engine plugin. This module loads common code shared between\n * {@link module:image/image/imageinlineediting~ImageInlineEditing} and\n * {@link module:image/image/imageblockediting~ImageBlockEditing} plugins.\n *\n * This plugin registers the {@link module:image/image/insertimagecommand~InsertImageCommand 'insertImage'} command.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\n\t\t// See https://github.com/ckeditor/ckeditor5-image/issues/142.\n\t\teditor.editing.view.addObserver( ImageLoadObserver );\n\n\t\tconversion.for( 'upcast' )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'img',\n\t\t\t\t\tkey: 'alt'\n\t\t\t\t},\n\t\t\t\tmodel: 'alt'\n\t\t\t} )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'img',\n\t\t\t\t\tkey: 'srcset'\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: 'srcset',\n\t\t\t\t\tvalue: viewImage => {\n\t\t\t\t\t\tconst value = {\n\t\t\t\t\t\t\tdata: viewImage.getAttribute( 'srcset' )\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tif ( viewImage.hasAttribute( 'width' ) ) {\n\t\t\t\t\t\t\tvalue.width = viewImage.getAttribute( 'width' );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\treturn value;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\tconst insertImageCommand = new InsertImageCommand( editor );\n\n\t\t// Register `insertImage` command and add `imageInsert` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'insertImage', insertImageCommand );\n\t\teditor.commands.add( 'imageInsert', insertImageCommand );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imagetypecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The image type command. It changes the type of a selected image, depending on the configuration.\n *\n * @extends module:core/command~Command\n */\nexport default class ImageTypeCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t *\n\t * @param {module:core/editor/editor~Editor} editor\n\t * @param {'imageBlock'|'imageInline'} modelElementName Model element name the command converts to.\n\t */\n\tconstructor( editor, modelElementName ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * Model element name the command converts to.\n\t\t *\n\t\t * @readonly\n\t\t * @private\n\t\t * @member {'imageBlock'|'imageInline'}\n\t\t */\n\t\tthis._modelElementName = modelElementName;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( this.editor.model.document.selection );\n\n\t\tif ( this._modelElementName === 'imageBlock' ) {\n\t\t\tthis.isEnabled = imageUtils.isInlineImage( element );\n\t\t} else {\n\t\t\tthis.isEnabled = imageUtils.isBlockImage( element );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command and changes the type of a selected image.\n\t *\n\t * @fires execute\n\t * @returns {Object|null} An object containing references to old and new model image elements\n\t * (for before and after the change) so external integrations can hook into the decorated\n\t * `execute` event and handle this change. `null` if the type change failed.\n\t */\n\texecute() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst oldElement = imageUtils.getClosestSelectedImageElement( model.document.selection );\n\t\tconst attributes = Object.fromEntries( oldElement.getAttributes() );\n\n\t\t// Don't change image type if \"src\" is missing (a broken image), unless there's \"uploadId\" set.\n\t\t// This state may happen during image upload (before it finishes) and it should be possible to change type\n\t\t// of the image in the meantime.\n\t\tif ( !attributes.src && !attributes.uploadId ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn model.change( writer => {\n\t\t\t// Get all markers that contain the old image element.\n\t\t\tconst markers = Array.from( model.markers )\n\t\t\t\t.filter( marker => marker.getRange().containsItem( oldElement ) );\n\n\t\t\tconst newElement = imageUtils.insertImage( attributes, model.createSelection( oldElement, 'on' ), this._modelElementName );\n\n\t\t\tif ( !newElement ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tconst newElementRange = writer.createRangeOn( newElement );\n\n\t\t\t// Expand the previously intersecting markers' ranges to include the new image element.\n\t\t\tfor ( const marker of markers ) {\n\t\t\t\tconst markerRange = marker.getRange();\n\n\t\t\t\t// Join the survived part of the old marker range with the new element range\n\t\t\t\t// (loosely because there could be some new paragraph or the existing one might got split).\n\t\t\t\tconst range = markerRange.root.rootName != '$graveyard' ?\n\t\t\t\t\tmarkerRange.getJoined( newElementRange, true ) : newElementRange;\n\n\t\t\t\twriter.updateMarker( marker, { range } );\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\toldElement,\n\t\t\t\tnewElement\n\t\t\t};\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageblockediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ClipboardPipeline } from 'ckeditor5/src/clipboard';\nimport { UpcastWriter } from 'ckeditor5/src/engine';\n\nimport {\n\tdowncastImageAttribute,\n\tdowncastSrcsetAttribute,\n\tupcastImageFigure\n} from './converters';\n\nimport ImageEditing from './imageediting';\nimport ImageTypeCommand from './imagetypecommand';\nimport ImageUtils from '../imageutils';\nimport {\n\tgetImgViewElementMatcher,\n\tcreateBlockImageViewElement,\n\tdetermineImageTypeForInsertionAtSelection\n} from '../image/utils';\n\n/**\n * The image block plugin.\n *\n * It registers:\n *\n * * `<imageBlock>` as a block element in the document schema, and allows `alt`, `src` and `srcset` attributes.\n * * converters for editing and data pipelines.,\n * * {@link module:image/image/imagetypecommand~ImageTypeCommand `'imageTypeBlock'`} command that converts inline images into\n * block images.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageBlockEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageEditing, ImageUtils, ClipboardPipeline ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageBlockEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Converters 'alt' and 'srcset' are added in 'ImageEditing' plugin.\n\t\tschema.register( 'imageBlock', {\n\t\t\tinheritAllFrom: '$blockObject',\n\t\t\tallowAttributes: [ 'alt', 'src', 'srcset' ]\n\t\t} );\n\n\t\tthis._setupConversion();\n\n\t\tif ( editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\teditor.commands.add( 'imageTypeBlock', new ImageTypeCommand( this.editor, 'imageBlock' ) );\n\n\t\t\tthis._setupClipboardIntegration();\n\t\t}\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting\n\t * block images (block image widgets) and their attributes.\n\t *\n\t * @private\n\t */\n\t_setupConversion() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst conversion = editor.conversion;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tconversion.for( 'dataDowncast' )\n\t\t\t.elementToStructure( {\n\t\t\t\tmodel: 'imageBlock',\n\t\t\t\tview: ( modelElement, { writer } ) => createBlockImageViewElement( writer )\n\t\t\t} );\n\n\t\tconversion.for( 'editingDowncast' )\n\t\t\t.elementToStructure( {\n\t\t\t\tmodel: 'imageBlock',\n\t\t\t\tview: ( modelElement, { writer } ) => imageUtils.toImageWidget(\n\t\t\t\t\tcreateBlockImageViewElement( writer ), writer, t( 'image widget' )\n\t\t\t\t)\n\t\t\t} );\n\n\t\tconversion.for( 'downcast' )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageBlock', 'src' ) )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageBlock', 'alt' ) )\n\t\t\t.add( downcastSrcsetAttribute( imageUtils, 'imageBlock' ) );\n\n\t\t// More image related upcasts are in 'ImageEditing' plugin.\n\t\tconversion.for( 'upcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tview: getImgViewElementMatcher( editor, 'imageBlock' ),\n\t\t\t\tmodel: ( viewImage, { writer } ) => writer.createElement(\n\t\t\t\t\t'imageBlock',\n\t\t\t\t\tviewImage.hasAttribute( 'src' ) ? { src: viewImage.getAttribute( 'src' ) } : null\n\t\t\t\t)\n\t\t\t} )\n\t\t\t.add( upcastImageFigure( imageUtils ) );\n\t}\n\n\t/**\n\t * Integrates the plugin with the clipboard pipeline.\n\t *\n\t * Idea is that the feature should recognize the user's intent when an **inline** image is\n\t * pasted or dropped. If such an image is pasted/dropped:\n\t *\n\t * * into an empty block (e.g. an empty paragraph),\n\t * * on another object (e.g. some block widget).\n\t *\n\t * it gets converted into a block image on the fly. We assume this is the user's intent\n\t * if they decided to put their image there.\n\t *\n\t * See the `ImageInlineEditing` for the similar integration that works in the opposite direction.\n\t *\n\t * @private\n\t */\n\t_setupClipboardIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst editingView = editor.editing.view;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tthis.listenTo( editor.plugins.get( 'ClipboardPipeline' ), 'inputTransformation', ( evt, data ) => {\n\t\t\tconst docFragmentChildren = Array.from( data.content.getChildren() );\n\t\t\tlet modelRange;\n\n\t\t\t// Make sure only <img> elements are dropped or pasted. Otherwise, if there some other HTML\n\t\t\t// mixed up, this should be handled as a regular paste.\n\t\t\tif ( !docFragmentChildren.every( imageUtils.isInlineImageView ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// When drag and dropping, data.targetRanges specifies where to drop because\n\t\t\t// this is usually a different place than the current model selection (the user\n\t\t\t// uses a drop marker to specify the drop location).\n\t\t\tif ( data.targetRanges ) {\n\t\t\t\tmodelRange = editor.editing.mapper.toModelRange( data.targetRanges[ 0 ] );\n\t\t\t}\n\t\t\t// Pasting, however, always occurs at the current model selection.\n\t\t\telse {\n\t\t\t\tmodelRange = model.document.selection.getFirstRange();\n\t\t\t}\n\n\t\t\tconst selection = model.createSelection( modelRange );\n\n\t\t\t// Convert inline images into block images only when the currently selected block is empty\n\t\t\t// (e.g. an empty paragraph) or some object is selected (to replace it).\n\t\t\tif ( determineImageTypeForInsertionAtSelection( model.schema, selection ) === 'imageBlock' ) {\n\t\t\t\tconst writer = new UpcastWriter( editingView.document );\n\n\t\t\t\t// Wrap <img ... /> -> <figure class=\"image\"><img .../></figure>\n\t\t\t\tconst blockViewImages = docFragmentChildren.map(\n\t\t\t\t\tinlineViewImage => writer.createElement( 'figure', { class: 'image' }, inlineViewImage )\n\t\t\t\t);\n\n\t\t\t\tdata.content = writer.createDocumentFragment( blockViewImages );\n\t\t\t}\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./image.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageblock\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\n\nimport ImageTextAlternative from './imagetextalternative';\nimport ImageBlockEditing from './image/imageblockediting';\n\nimport '../theme/image.css';\n\n/**\n * The image block plugin.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * {@link module:image/image/imageblockediting~ImageBlockEditing},\n * * {@link module:image/imagetextalternative~ImageTextAlternative}.\n *\n * Usually, it is used in conjunction with other plugins from this package. See the {@glink api/image package page}\n * for more information.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageBlock extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageBlockEditing, Widget, ImageTextAlternative ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageBlock';\n\t}\n}\n\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageinlineediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ClipboardPipeline } from 'ckeditor5/src/clipboard';\nimport { UpcastWriter } from 'ckeditor5/src/engine';\n\nimport {\n\tdowncastImageAttribute,\n\tdowncastSrcsetAttribute\n} from './converters';\n\nimport ImageEditing from './imageediting';\nimport ImageTypeCommand from './imagetypecommand';\nimport ImageUtils from '../imageutils';\nimport {\n\tgetImgViewElementMatcher,\n\tcreateInlineImageViewElement,\n\tdetermineImageTypeForInsertionAtSelection\n} from '../image/utils';\n\n/**\n * The image inline plugin.\n *\n * It registers:\n *\n * * `<imageInline>` as an inline element in the document schema, and allows `alt`, `src` and `srcset` attributes.\n * * converters for editing and data pipelines.\n * * {@link module:image/image/imagetypecommand~ImageTypeCommand `'imageTypeInline'`} command that converts block images into\n * inline images.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageInlineEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageEditing, ImageUtils, ClipboardPipeline ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageInlineEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Converters 'alt' and 'srcset' are added in 'ImageEditing' plugin.\n\t\tschema.register( 'imageInline', {\n\t\t\tinheritAllFrom: '$inlineObject',\n\t\t\tallowAttributes: [ 'alt', 'src', 'srcset' ]\n\t\t} );\n\n\t\t// Disallow inline images in captions (for now). This is the best spot to do that because\n\t\t// independent packages can introduce captions (ImageCaption, TableCaption, etc.) so better this\n\t\t// be future-proof.\n\t\tschema.addChildCheck( ( context, childDefinition ) => {\n\t\t\tif ( context.endsWith( 'caption' ) && childDefinition.name === 'imageInline' ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\tthis._setupConversion();\n\n\t\tif ( editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\teditor.commands.add( 'imageTypeInline', new ImageTypeCommand( this.editor, 'imageInline' ) );\n\n\t\t\tthis._setupClipboardIntegration();\n\t\t}\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting\n\t * inline images (inline image widgets) and their attributes.\n\t *\n\t * @private\n\t */\n\t_setupConversion() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst conversion = editor.conversion;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tconversion.for( 'dataDowncast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'imageInline',\n\t\t\t\tview: ( modelElement, { writer } ) => writer.createEmptyElement( 'img' )\n\t\t\t} );\n\n\t\tconversion.for( 'editingDowncast' )\n\t\t\t.elementToStructure( {\n\t\t\t\tmodel: 'imageInline',\n\t\t\t\tview: ( modelElement, { writer } ) => imageUtils.toImageWidget(\n\t\t\t\t\tcreateInlineImageViewElement( writer ), writer, t( 'image widget' )\n\t\t\t\t)\n\t\t\t} );\n\n\t\tconversion.for( 'downcast' )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageInline', 'src' ) )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageInline', 'alt' ) )\n\t\t\t.add( downcastSrcsetAttribute( imageUtils, 'imageInline' ) );\n\n\t\t// More image related upcasts are in 'ImageEditing' plugin.\n\t\tconversion.for( 'upcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tview: getImgViewElementMatcher( editor, 'imageInline' ),\n\t\t\t\tmodel: ( viewImage, { writer } ) => writer.createElement(\n\t\t\t\t\t'imageInline',\n\t\t\t\t\tviewImage.hasAttribute( 'src' ) ? { src: viewImage.getAttribute( 'src' ) } : null\n\t\t\t\t)\n\t\t\t} );\n\t}\n\n\t/**\n\t * Integrates the plugin with the clipboard pipeline.\n\t *\n\t * Idea is that the feature should recognize the user's intent when an **block** image is\n\t * pasted or dropped. If such an image is pasted/dropped into a non-empty block\n\t * (e.g. a paragraph with some text) it gets converted into an inline image on the fly.\n\t *\n\t * We assume this is the user's intent if they decided to put their image there.\n\t *\n\t * **Note**: If a block image has a caption, it will not be converted to an inline image\n\t * to avoid the confusion. Captions are added on purpose and they should never be lost\n\t * in the clipboard pipeline.\n\t *\n\t * See the `ImageBlockEditing` for the similar integration that works in the opposite direction.\n\t *\n\t * @private\n\t */\n\t_setupClipboardIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst editingView = editor.editing.view;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tthis.listenTo( editor.plugins.get( 'ClipboardPipeline' ), 'inputTransformation', ( evt, data ) => {\n\t\t\tconst docFragmentChildren = Array.from( data.content.getChildren() );\n\t\t\tlet modelRange;\n\n\t\t\t// Make sure only <figure class=\"image\"></figure> elements are dropped or pasted. Otherwise, if there some other HTML\n\t\t\t// mixed up, this should be handled as a regular paste.\n\t\t\tif ( !docFragmentChildren.every( imageUtils.isBlockImageView ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// When drag and dropping, data.targetRanges specifies where to drop because\n\t\t\t// this is usually a different place than the current model selection (the user\n\t\t\t// uses a drop marker to specify the drop location).\n\t\t\tif ( data.targetRanges ) {\n\t\t\t\tmodelRange = editor.editing.mapper.toModelRange( data.targetRanges[ 0 ] );\n\t\t\t}\n\t\t\t// Pasting, however, always occurs at the current model selection.\n\t\t\telse {\n\t\t\t\tmodelRange = model.document.selection.getFirstRange();\n\t\t\t}\n\n\t\t\tconst selection = model.createSelection( modelRange );\n\n\t\t\t// Convert block images into inline images only when pasting or dropping into non-empty blocks\n\t\t\t// and when the block is not an object (e.g. pasting to replace another widget).\n\t\t\tif ( determineImageTypeForInsertionAtSelection( model.schema, selection ) === 'imageInline' ) {\n\t\t\t\tconst writer = new UpcastWriter( editingView.document );\n\n\t\t\t\t// Unwrap <figure class=\"image\"><img .../></figure> -> <img ... />\n\t\t\t\t// but <figure class=\"image\"><img .../><figcaption>...</figcaption></figure> -> stays the same\n\t\t\t\tconst inlineViewImages = docFragmentChildren.map( blockViewImage => {\n\t\t\t\t\t// If there's just one child, it can be either <img /> or <a><img></a>.\n\t\t\t\t\t// If there are other children than <img>, this means that the block image\n\t\t\t\t\t// has a caption or some other features and this kind of image should be\n\t\t\t\t\t// pasted/dropped without modifications.\n\t\t\t\t\tif ( blockViewImage.childCount === 1 ) {\n\t\t\t\t\t\t// Pass the attributes which are present only in the <figure> to the <img>\n\t\t\t\t\t\t// (e.g. the style=\"width:10%\" attribute applied by the ImageResize plugin).\n\t\t\t\t\t\tArray.from( blockViewImage.getAttributes() )\n\t\t\t\t\t\t\t.forEach( attribute => writer.setAttribute(\n\t\t\t\t\t\t\t\t...attribute,\n\t\t\t\t\t\t\t\timageUtils.findViewImgElement( blockViewImage )\n\t\t\t\t\t\t\t) );\n\n\t\t\t\t\t\treturn blockViewImage.getChild( 0 );\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn blockViewImage;\n\t\t\t\t\t}\n\t\t\t\t} );\n\n\t\t\t\tdata.content = writer.createDocumentFragment( inlineViewImages );\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageinline\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\n\nimport ImageTextAlternative from './imagetextalternative';\nimport ImageInlineEditing from './image/imageinlineediting';\n\nimport '../theme/image.css';\n\n/**\n * The image inline plugin.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * {@link module:image/image/imageinlineediting~ImageInlineEditing},\n * * {@link module:image/imagetextalternative~ImageTextAlternative}.\n *\n * Usually, it is used in conjunction with other plugins from this package. See the {@glink api/image package page}\n * for more information.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageInline extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageInlineEditing, Widget, ImageTextAlternative ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageInline';\n\t}\n}\n\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption/toggleimagecaptioncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport ImageBlockEditing from '../image/imageblockediting';\n\n/**\n * The toggle image caption command.\n *\n * This command is registered by {@link module:image/imagecaption/imagecaptionediting~ImageCaptionEditing} as the\n * `'toggleImageCaption'` editor command.\n *\n * Executing this command:\n *\n * * either adds or removes the image caption of a selected image (depending on whether the caption is present or not),\n * * removes the image caption if the selection is anchored in one.\n *\n *\t\t// Toggle the presence of the caption.\n *\t\teditor.execute( 'toggleImageCaption' );\n *\n * **Note**: Upon executing this command, the selection will be set on the image if previously anchored in the caption element.\n *\n * **Note**: You can move the selection to the caption right away as it shows up upon executing this command by using\n * the `focusCaptionOnShow` option:\n *\n *\t\teditor.execute( 'toggleImageCaption', { focusCaptionOnShow: true } );\n *\n * @extends module:core/command~Command\n */\nexport default class ToggleImageCaptionCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst imageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\n\t\t// Only block images can get captions.\n\t\tif ( !editor.plugins.has( ImageBlockEditing ) ) {\n\t\t\tthis.isEnabled = false;\n\t\t\tthis.value = false;\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst selection = editor.model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tif ( !selectedElement ) {\n\t\t\tconst ancestorCaptionElement = imageCaptionUtils.getCaptionFromModelSelection( selection );\n\n\t\t\tthis.isEnabled = !!ancestorCaptionElement;\n\t\t\tthis.value = !!ancestorCaptionElement;\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Block images support captions by default but the command should also be enabled for inline\n\t\t// images because toggling the caption when one is selected should convert it into a block image.\n\t\tthis.isEnabled = this.editor.plugins.get( 'ImageUtils' ).isImage( selectedElement );\n\n\t\tif ( !this.isEnabled ) {\n\t\t\tthis.value = false;\n\t\t} else {\n\t\t\tthis.value = !!imageCaptionUtils.getCaptionFromImageModelElement( selectedElement );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t *\t\teditor.execute( 'toggleImageCaption' );\n\t *\n\t * @param {Object} [options] Options for the executed command.\n\t * @param {String} [options.focusCaptionOnShow] When true and the caption shows up, the selection will be moved into it straight away.\n\t * @fires execute\n\t */\n\texecute( options = {} ) {\n\t\tconst { focusCaptionOnShow } = options;\n\n\t\tthis.editor.model.change( writer => {\n\t\t\tif ( this.value ) {\n\t\t\t\tthis._hideImageCaption( writer );\n\t\t\t} else {\n\t\t\t\tthis._showImageCaption( writer, focusCaptionOnShow );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the caption of the `<imageBlock>` or `<imageInline>`. Also:\n\t *\n\t * * it converts `<imageInline>` to `<imageBlock>` to show the caption,\n\t * * it attempts to restore the caption content from the `ImageCaptionEditing` caption registry,\n\t * * it moves the selection to the caption right away, it the `focusCaptionOnShow` option was set.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t */\n\t_showImageCaption( writer, focusCaptionOnShow ) {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst imageCaptionEditing = this.editor.plugins.get( 'ImageCaptionEditing' );\n\n\t\tlet selectedImage = selection.getSelectedElement();\n\n\t\tconst savedCaption = imageCaptionEditing._getSavedCaption( selectedImage );\n\n\t\t// Convert imageInline -> image first.\n\t\tif ( this.editor.plugins.get( 'ImageUtils' ).isInlineImage( selectedImage ) ) {\n\t\t\tthis.editor.execute( 'imageTypeBlock' );\n\n\t\t\t// Executing the command created a new model element. Let's pick it again.\n\t\t\tselectedImage = selection.getSelectedElement();\n\t\t}\n\n\t\t// Try restoring the caption from the ImageCaptionEditing plugin storage.\n\t\tconst newCaptionElement = savedCaption || writer.createElement( 'caption' );\n\n\t\twriter.append( newCaptionElement, selectedImage );\n\n\t\tif ( focusCaptionOnShow ) {\n\t\t\twriter.setSelection( newCaptionElement, 'in' );\n\t\t}\n\t}\n\n\t/**\n\t * Hides the caption of a selected image (or an image caption the selection is anchored to).\n\t *\n\t * The content of the caption is stored in the `ImageCaptionEditing` caption registry to make this\n\t * a reversible action.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t */\n\t_hideImageCaption( writer ) {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst imageCaptionEditing = editor.plugins.get( 'ImageCaptionEditing' );\n\t\tconst imageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tlet selectedImage = selection.getSelectedElement();\n\t\tlet captionElement;\n\n\t\tif ( selectedImage ) {\n\t\t\tcaptionElement = imageCaptionUtils.getCaptionFromImageModelElement( selectedImage );\n\t\t} else {\n\t\t\tcaptionElement = imageCaptionUtils.getCaptionFromModelSelection( selection );\n\t\t\tselectedImage = captionElement.parent;\n\t\t}\n\n\t\t// Store the caption content so it can be restored quickly if the user changes their mind even if they toggle image<->imageInline.\n\t\timageCaptionEditing._saveCaption( selectedImage, captionElement );\n\n\t\twriter.setSelection( selectedImage, 'on' );\n\t\twriter.remove( captionElement );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaptionutils/utils\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport ImageUtils from '../imageutils';\n\n/**\n * The image caption utilities plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageCaptionUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageCaptionUtils';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageUtils ];\n\t}\n\n\t/**\n\t * Returns the caption model element from a given image element. Returns `null` if no caption is found.\n\t *\n\t * @param {module:engine/model/element~Element} imageModelElement\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tgetCaptionFromImageModelElement( imageModelElement ) {\n\t\tfor ( const node of imageModelElement.getChildren() ) {\n\t\t\tif ( !!node && node.is( 'element', 'caption' ) ) {\n\t\t\t\treturn node;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the caption model element for a model selection. Returns `null` if the selection has no caption element ancestor.\n\t *\n\t * @param {module:engine/model/selection~Selection} selection\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tgetCaptionFromModelSelection( selection ) {\n\t\tconst imageUtils = this.editor.plugins.get( 'ImageUtils' );\n\t\tconst captionElement = selection.getFirstPosition().findAncestor( 'caption' );\n\n\t\tif ( !captionElement ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( imageUtils.isBlockImage( captionElement.parent ) ) {\n\t\t\treturn captionElement;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * {@link module:engine/view/matcher~Matcher} pattern. Checks if a given element is a `<figcaption>` element that is placed\n\t * inside the image `<figure>` element.\n\t *\n\t * @param {module:engine/view/element~Element} element\n\t * @returns {Object|null} Returns the object accepted by {@link module:engine/view/matcher~Matcher} or `null` if the element\n\t * cannot be matched.\n\t */\n\tmatchImageCaptionViewElement( element ) {\n\t\tconst imageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\t// Convert only captions for images.\n\t\tif ( element.name == 'figcaption' && imageUtils.isBlockImageView( element.parent ) ) {\n\t\t\treturn { name: true };\n\t\t}\n\n\t\treturn null;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption/imagecaptionediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Element, enablePlaceholder } from 'ckeditor5/src/engine';\nimport { toWidgetEditable } from 'ckeditor5/src/widget';\n\nimport ToggleImageCaptionCommand from './toggleimagecaptioncommand';\n\nimport ImageUtils from '../imageutils';\nimport ImageCaptionUtils from './imagecaptionutils';\n\n/**\n * The image caption engine plugin. It is responsible for:\n *\n * * registering converters for the caption element,\n * * registering converters for the caption model attribute,\n * * registering the {@link module:image/imagecaption/toggleimagecaptioncommand~ToggleImageCaptionCommand `toggleImageCaption`} command.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageCaptionEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageUtils, ImageCaptionUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageCaptionEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A map that keeps saved JSONified image captions and image model elements they are\n\t\t * associated with.\n\t\t *\n\t\t * To learn more about this system, see {@link #_saveCaption}.\n\t\t *\n\t\t * @member {WeakMap.<module:engine/model/element~Element,Object>}\n\t\t */\n\t\tthis._savedCaptionsMap = new WeakMap();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Schema configuration.\n\t\tif ( !schema.isRegistered( 'caption' ) ) {\n\t\t\tschema.register( 'caption', {\n\t\t\t\tallowIn: 'imageBlock',\n\t\t\t\tallowContentOf: '$block',\n\t\t\t\tisLimit: true\n\t\t\t} );\n\t\t} else {\n\t\t\tschema.extend( 'caption', {\n\t\t\t\tallowIn: 'imageBlock'\n\t\t\t} );\n\t\t}\n\n\t\teditor.commands.add( 'toggleImageCaption', new ToggleImageCaptionCommand( this.editor ) );\n\n\t\tthis._setupConversion();\n\t\tthis._setupImageTypeCommandsIntegration();\n\t\tthis._registerCaptionReconversion();\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting\n\t * image captions.\n\t *\n\t * @private\n\t */\n\t_setupConversion() {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tconst t = editor.t;\n\n\t\t// View -> model converter for the data pipeline.\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tview: element => imageCaptionUtils.matchImageCaptionViewElement( element ),\n\t\t\tmodel: 'caption'\n\t\t} );\n\n\t\t// Model -> view converter for the data pipeline.\n\t\teditor.conversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !imageUtils.isBlockImage( modelElement.parent ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createContainerElement( 'figcaption' );\n\t\t\t}\n\t\t} );\n\n\t\t// Model -> view converter for the editing pipeline.\n\t\teditor.conversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !imageUtils.isBlockImage( modelElement.parent ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tconst figcaptionElement = writer.createEditableElement( 'figcaption' );\n\t\t\t\twriter.setCustomProperty( 'imageCaption', true, figcaptionElement );\n\n\t\t\t\tenablePlaceholder( {\n\t\t\t\t\tview,\n\t\t\t\t\telement: figcaptionElement,\n\t\t\t\t\ttext: t( 'Enter image caption' ),\n\t\t\t\t\tkeepOnFocus: true\n\t\t\t\t} );\n\n\t\t\t\tconst imageAlt = modelElement.parent.getAttribute( 'alt' );\n\t\t\t\tconst label = imageAlt ? t( 'Caption for image: %0', [ imageAlt ] ) : t( 'Caption for the image' );\n\n\t\t\t\treturn toWidgetEditable( figcaptionElement, writer, { label } );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Integrates with {@link module:image/image/imagetypecommand~ImageTypeCommand image type commands}\n\t * to make sure the caption is preserved when the type of an image changes so it can be restored\n\t * in the future if the user decides they want their caption back.\n\t *\n\t * @private\n\t */\n\t_setupImageTypeCommandsIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tconst imageTypeInlineCommand = editor.commands.get( 'imageTypeInline' );\n\t\tconst imageTypeBlockCommand = editor.commands.get( 'imageTypeBlock' );\n\n\t\tconst handleImageTypeChange = evt => {\n\t\t\t// The image type command execution can be unsuccessful.\n\t\t\tif ( !evt.return ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { oldElement, newElement } = evt.return;\n\n\t\t\t/* istanbul ignore if: paranoid check */\n\t\t\tif ( !oldElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( imageUtils.isBlockImage( oldElement ) ) {\n\t\t\t\tconst oldCaptionElement = imageCaptionUtils.getCaptionFromImageModelElement( oldElement );\n\n\t\t\t\t// If the old element was a captioned block image (the caption was visible),\n\t\t\t\t// simply save it so it can be restored.\n\t\t\t\tif ( oldCaptionElement ) {\n\t\t\t\t\tthis._saveCaption( newElement, oldCaptionElement );\n\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst savedOldElementCaption = this._getSavedCaption( oldElement );\n\n\t\t\t// If either:\n\t\t\t//\n\t\t\t// * the block image didn't have a visible caption,\n\t\t\t// * the block image caption was hidden (and already saved),\n\t\t\t// * the inline image was passed\n\t\t\t//\n\t\t\t// just try to \"pass\" the saved caption from the old image to the new image\n\t\t\t// so it can be retrieved in the future if the user wants it back.\n\t\t\tif ( savedOldElementCaption ) {\n\t\t\t\t// Note: Since we're writing to a WeakMap, we don't bother with removing the\n\t\t\t\t// [ oldElement, savedOldElementCaption ] pair from it.\n\t\t\t\tthis._saveCaption( newElement, savedOldElementCaption );\n\t\t\t}\n\t\t};\n\n\t\t// Presence of the commands depends on the Image(Inline|Block)Editing plugins loaded in the editor.\n\t\tif ( imageTypeInlineCommand ) {\n\t\t\tthis.listenTo( imageTypeInlineCommand, 'execute', handleImageTypeChange, { priority: 'low' } );\n\t\t}\n\n\t\tif ( imageTypeBlockCommand ) {\n\t\t\tthis.listenTo( imageTypeBlockCommand, 'execute', handleImageTypeChange, { priority: 'low' } );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the saved {@link module:engine/model/element~Element#toJSON JSONified} caption\n\t * of an image model element.\n\t *\n\t * See {@link #_saveCaption}.\n\t *\n\t * @protected\n\t * @param {module:engine/model/element~Element} imageModelElement The model element the\n\t * caption should be returned for.\n\t * @returns {module:engine/model/element~Element|null} The model caption element or `null` if there is none.\n\t */\n\t_getSavedCaption( imageModelElement ) {\n\t\tconst jsonObject = this._savedCaptionsMap.get( imageModelElement );\n\n\t\treturn jsonObject ? Element.fromJSON( jsonObject ) : null;\n\t}\n\n\t/**\n\t * Saves a {@link module:engine/model/element~Element#toJSON JSONified} caption for\n\t * an image element to allow restoring it in the future.\n\t *\n\t * A caption is saved every time it gets hidden and/or the type of an image changes. The\n\t * user should be able to restore it on demand.\n\t *\n\t * **Note**: The caption cannot be stored in the image model element attribute because,\n\t * for instance, when the model state propagates to collaborators, the attribute would get\n\t * lost (mainly because it does not convert to anything when the caption is hidden) and\n\t * the states of collaborators' models would de-synchronize causing numerous issues.\n\t *\n\t * See {@link #_getSavedCaption}.\n\t *\n\t * @protected\n\t * @param {module:engine/model/element~Element} imageModelElement The model element the\n\t * caption is saved for.\n\t * @param {module:engine/model/element~Element} caption The caption model element to be saved.\n\t */\n\t_saveCaption( imageModelElement, caption ) {\n\t\tthis._savedCaptionsMap.set( imageModelElement, caption.toJSON() );\n\t}\n\n\t/**\n\t * Reconverts image caption when image alt attribute changes.\n\t * The change of alt attribute is reflected in caption's aria-label attribute.\n\t *\n\t * @private\n\t */\n\t_registerCaptionReconversion() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\n\t\tmodel.document.on( 'change:data', () => {\n\t\t\tconst changes = model.document.differ.getChanges();\n\n\t\t\tfor ( const change of changes ) {\n\t\t\t\tif ( change.attributeKey !== 'alt' ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tconst image = change.range.start.nodeAfter;\n\n\t\t\t\tif ( imageUtils.isBlockImage( image ) ) {\n\t\t\t\t\tconst caption = imageCaptionUtils.getCaptionFromImageModelElement( image );\n\n\t\t\t\t\tif ( !caption ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\teditor.editing.reconvertItem( caption );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption/imagecaptionui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport ImageCaptionUtils from './imagecaptionutils';\n\n/**\n * The image caption UI plugin. It introduces the `'toggleImageCaption'` UI button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageCaptionUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageCaptionUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageCaptionUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst imageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'toggleImageCaption', locale => {\n\t\t\tconst command = editor.commands.get( 'toggleImageCaption' );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\ticon: icons.caption,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\t\t\tview.bind( 'label' ).to( command, 'value', value => value ? t( 'Toggle caption off' ) : t( 'Toggle caption on' ) );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'toggleImageCaption', { focusCaptionOnShow: true } );\n\n\t\t\t\t// Scroll to the selection and highlight the caption if the caption showed up.\n\t\t\t\tconst modelCaptionElement = imageCaptionUtils.getCaptionFromModelSelection( editor.model.document.selection );\n\n\t\t\t\tif ( modelCaptionElement ) {\n\t\t\t\t\tconst figcaptionElement = editor.editing.mapper.toViewElement( modelCaptionElement );\n\n\t\t\t\t\teditingView.scrollToTheSelection();\n\n\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\twriter.addClass( 'image__caption_highlighted', figcaptionElement );\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imagecaption.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/imagestylecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The image style command. It is used to apply {@link module:image/imagestyle~ImageStyleConfig#options image style option}\n * to a selected image.\n *\n * **Note**: Executing this command may change the image model element if the desired style requires an image of a different\n * type. See {@link module:image/imagestyle/imagestylecommand~ImageStyleCommand#execute} to learn more.\n *\n * @extends module:core/command~Command\n */\nexport default class ImageStyleCommand extends Command {\n\t/**\n\t * Creates an instance of the image style command. When executed, the command applies one of\n\t * {@link module:image/imagestyle~ImageStyleConfig#options style options} to the currently selected image.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor instance.\n\t * @param {Array.<module:image/imagestyle~ImageStyleOptionDefinition>} styles\n\t * The style options that this command supports.\n\t */\n\tconstructor( editor, styles ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * An object containing names of default style options for the inline and block images.\n\t\t * If there is no default style option for the given image type in the configuration,\n\t\t * the name will be `false`.\n\t\t *\n\t\t * @private\n\t\t * @type {Object.<String,module:image/imagestyle~ImageStyleOptionDefinition#name>}\n\t\t */\n\t\tthis._defaultStyles = {\n\t\t\timageBlock: false,\n\t\t\timageInline: false\n\t\t};\n\n\t\t/**\n\t\t * The styles handled by this command.\n\t\t *\n\t\t * @private\n\t\t * @type {module:image/imagestyle~ImageStyleConfig#options}\n\t\t */\n\t\tthis._styles = new Map( styles.map( style => {\n\t\t\tif ( style.isDefault ) {\n\t\t\t\tfor ( const modelElementName of style.modelElements ) {\n\t\t\t\t\tthis._defaultStyles[ modelElementName ] = style.name;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn [ style.name, style ];\n\t\t} ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = !!element;\n\n\t\tif ( !this.isEnabled ) {\n\t\t\tthis.value = false;\n\t\t} else if ( element.hasAttribute( 'imageStyle' ) ) {\n\t\t\tthis.value = element.getAttribute( 'imageStyle' );\n\t\t} else {\n\t\t\tthis.value = this._defaultStyles[ element.name ];\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command and applies the style to the currently selected image:\n\t *\n\t *\t\teditor.execute( 'imageStyle', { value: 'side' } );\n\t *\n\t * **Note**: Executing this command may change the image model element if the desired style requires an image\n\t * of a different type. Learn more about {@link module:image/imagestyle~ImageStyleOptionDefinition#modelElements model element}\n\t * configuration for the style option.\n\t *\n\t * @param {Object} options\n\t * @param {module:image/imagestyle~ImageStyleOptionDefinition#name} options.value The name of the style (as configured in\n\t * {@link module:image/imagestyle~ImageStyleConfig#options}).\n\t * @fires execute\n\t */\n\texecute( options = {} ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tmodel.change( writer => {\n\t\t\tconst requestedStyle = options.value;\n\n\t\t\tlet imageElement = imageUtils.getClosestSelectedImageElement( model.document.selection );\n\n\t\t\t// Change the image type if a style requires it.\n\t\t\tif ( requestedStyle && this.shouldConvertImageType( requestedStyle, imageElement ) ) {\n\t\t\t\tthis.editor.execute( imageUtils.isBlockImage( imageElement ) ? 'imageTypeInline' : 'imageTypeBlock' );\n\n\t\t\t\t// Update the imageElement to the newly created image.\n\t\t\t\timageElement = imageUtils.getClosestSelectedImageElement( model.document.selection );\n\t\t\t}\n\n\t\t\t// Default style means that there is no `imageStyle` attribute in the model.\n\t\t\t// https://github.com/ckeditor/ckeditor5-image/issues/147\n\t\t\tif ( !requestedStyle || this._styles.get( requestedStyle ).isDefault ) {\n\t\t\t\twriter.removeAttribute( 'imageStyle', imageElement );\n\t\t\t} else {\n\t\t\t\twriter.setAttribute( 'imageStyle', requestedStyle, imageElement );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns `true` if requested style change would trigger the image type change.\n\t *\n\t * @param {module:image/imagestyle~ImageStyleOptionDefinition} requestedStyle The name of the style (as configured in\n\t * {@link module:image/imagestyle~ImageStyleConfig#options}).\n\t * @param {module:engine/model/element~Element} imageElement The image model element.\n\t * @returns {Boolean}\n\t */\n\tshouldConvertImageType( requestedStyle, imageElement ) {\n\t\tconst supportedTypes = this._styles.get( requestedStyle ).modelElements;\n\n\t\treturn !supportedTypes.includes( imageElement.name );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/utils\n */\n\nimport { icons } from 'ckeditor5/src/core';\nimport { logWarning } from 'ckeditor5/src/utils';\n\nconst {\n\tobjectFullWidth,\n\tobjectInline,\n\tobjectLeft,\tobjectRight, objectCenter,\n\tobjectBlockLeft, objectBlockRight\n} = icons;\n\n/**\n * Default image style options provided by the plugin that can be referred in the {@link module:image/image~ImageConfig#styles}\n * configuration.\n *\n * There are available 5 styles focused on formatting:\n *\n * * **`'alignLeft'`** aligns the inline or block image to the left and wraps it with the text using the `image-style-align-left` class,\n * * **`'alignRight'`** aligns the inline or block image to the right and wraps it with the text using the `image-style-align-right` class,\n * * **`'alignCenter'`** centers the block image using the `image-style-align-center` class,\n * * **`'alignBlockLeft'`** aligns the block image to the left using the `image-style-block-align-left` class,\n * * **`'alignBlockRight'`** aligns the block image to the right using the `image-style-block-align-right` class,\n *\n * and 3 semantic styles:\n *\n * * **`'inline'`** is an inline image without any CSS class,\n * * **`'block'`** is a block image without any CSS class,\n * * **`'side'`** is a block image styled with the `image-style-side` CSS class.\n *\n * @readonly\n * @type {Object.<String,module:image/imagestyle~ImageStyleOptionDefinition>}\n */\nconst DEFAULT_OPTIONS = {\n\t// This style represents an image placed in the line of text.\n\tget inline() {\n\t\treturn {\n\t\t\tname: 'inline',\n\t\t\ttitle: 'In line',\n\t\t\ticon: objectInline,\n\t\t\tmodelElements: [ 'imageInline' ],\n\t\t\tisDefault: true\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the left and wrapped with text.\n\tget alignLeft() {\n\t\treturn {\n\t\t\tname: 'alignLeft',\n\t\t\ttitle: 'Left aligned image',\n\t\t\ticon: objectLeft,\n\t\t\tmodelElements: [ 'imageBlock', 'imageInline' ],\n\t\t\tclassName: 'image-style-align-left'\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the left.\n\tget alignBlockLeft() {\n\t\treturn {\n\t\t\tname: 'alignBlockLeft',\n\t\t\ttitle: 'Left aligned image',\n\t\t\ticon: objectBlockLeft,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-block-align-left'\n\t\t};\n\t},\n\n\t// This style represents a centered image.\n\tget alignCenter() {\n\t\treturn {\n\t\t\tname: 'alignCenter',\n\t\t\ttitle: 'Centered image',\n\t\t\ticon: objectCenter,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-align-center'\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the right and wrapped with text.\n\tget alignRight() {\n\t\treturn {\n\t\t\tname: 'alignRight',\n\t\t\ttitle: 'Right aligned image',\n\t\t\ticon: objectRight,\n\t\t\tmodelElements: [ 'imageBlock', 'imageInline' ],\n\t\t\tclassName: 'image-style-align-right'\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the right.\n\tget alignBlockRight() {\n\t\treturn {\n\t\t\tname: 'alignBlockRight',\n\t\t\ttitle: 'Right aligned image',\n\t\t\ticon: objectBlockRight,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-block-align-right'\n\t\t};\n\t},\n\n\t// This option is equal to the situation when no style is applied.\n\tget block() {\n\t\treturn {\n\t\t\tname: 'block',\n\t\t\ttitle: 'Centered image',\n\t\t\ticon: objectCenter,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tisDefault: true\n\t\t};\n\t},\n\n\t// This represents a side image.\n\tget side() {\n\t\treturn {\n\t\t\tname: 'side',\n\t\t\ttitle: 'Side image',\n\t\t\ticon: objectRight,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-side'\n\t\t};\n\t}\n};\n\n/**\n * Default image style icons provided by the plugin that can be referred in the {@link module:image/image~ImageConfig#styles}\n * configuration.\n *\n * See {@link module:image/imagestyle~ImageStyleOptionDefinition#icon} to learn more.\n *\n * There are 7 default icons available: `'full'`, `'left'`, `'inlineLeft'`, `'center'`, `'right'`, `'inlineRight'`, and `'inline'`.\n *\n * @readonly\n * @type {Object.<String,String>}\n */\nconst DEFAULT_ICONS = {\n\tfull: objectFullWidth,\n\tleft: objectBlockLeft,\n\tright: objectBlockRight,\n\tcenter: objectCenter,\n\tinlineLeft: objectLeft,\n\tinlineRight: objectRight,\n\tinline: objectInline\n};\n\n/**\n * Default drop-downs provided by the plugin that can be referred in the {@link module:image/image~ImageConfig#toolbar}\n * configuration. The drop-downs are containers for the {@link module:image/imagestyle~ImageStyleConfig#options image style options}.\n *\n * If both of the `ImageEditing` plugins are loaded, there are 2 predefined drop-downs available:\n *\n * * **`'imageStyle:wrapText'`**, which contains the `alignLeft` and `alignRight` options, that is,\n * those that wraps the text around the image,\n * * **`'imageStyle:breakText'`**, which contains the `alignBlockLeft`, `alignCenter` and `alignBlockRight` options, that is,\n * those that breaks the text around the image.\n *\n * @readonly\n * @type {Array.<module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition>}\n */\nconst DEFAULT_DROPDOWN_DEFINITIONS = [ {\n\tname: 'imageStyle:wrapText',\n\ttitle: 'Wrap text',\n\tdefaultItem: 'imageStyle:alignLeft',\n\titems: [ 'imageStyle:alignLeft', 'imageStyle:alignRight' ]\n}, {\n\tname: 'imageStyle:breakText',\n\ttitle: 'Break text',\n\tdefaultItem: 'imageStyle:block',\n\titems: [ 'imageStyle:alignBlockLeft', 'imageStyle:block', 'imageStyle:alignBlockRight' ]\n} ];\n\n/**\n * Returns a list of the normalized and validated image style options.\n *\n * @protected\n * @param {Object} config\n * @param {Boolean} config.isInlinePluginLoaded\n * Determines whether the {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugin has been loaded.\n * @param {Boolean} config.isBlockPluginLoaded\n * Determines whether the {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} plugin has been loaded.\n * @param {module:image/imagestyle~ImageStyleConfig} config.configuredStyles\n * The image styles configuration provided in the image styles {@link module:image/image~ImageConfig#styles configuration}\n * as a default or custom value.\n * @returns {module:image/imagestyle~ImageStyleConfig}\n * * Each of options contains a complete icon markup.\n * * The image style options not supported by any of the loaded plugins are filtered out.\n */\nfunction normalizeStyles( config ) {\n\tconst configuredStyles = config.configuredStyles.options || [];\n\n\tconst styles = configuredStyles\n\t\t.map( arrangement => normalizeDefinition( arrangement ) )\n\t\t.filter( arrangement => isValidOption( arrangement, config ) );\n\n\treturn styles;\n}\n\n/**\n * Returns the default image styles configuration depending on the loaded image editing plugins.\n * @protected\n *\n * @param {Boolean} isInlinePluginLoaded\n * Determines whether the {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugin has been loaded.\n *\n * @param {Boolean} isBlockPluginLoaded\n * Determines whether the {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} plugin has been loaded.\n *\n * @returns {Object<String,Array>}\n * It returns an object with the lists of the image style options and groups defined as strings related to the\n * {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default options}\n */\nfunction getDefaultStylesConfiguration( isBlockPluginLoaded, isInlinePluginLoaded ) {\n\tif ( isBlockPluginLoaded && isInlinePluginLoaded ) {\n\t\treturn {\n\t\t\toptions: [\n\t\t\t\t'inline', 'alignLeft', 'alignRight',\n\t\t\t\t'alignCenter', 'alignBlockLeft', 'alignBlockRight',\n\t\t\t\t'block', 'side'\n\t\t\t]\n\t\t};\n\t} else if ( isBlockPluginLoaded ) {\n\t\treturn {\n\t\t\toptions: [ 'block', 'side' ]\n\t\t};\n\t} else if ( isInlinePluginLoaded ) {\n\t\treturn {\n\t\t\toptions: [ 'inline', 'alignLeft', 'alignRight' ]\n\t\t};\n\t}\n\n\treturn {};\n}\n\n/**\n * Returns a list of the available predefined drop-downs' definitions depending on the loaded image editing plugins.\n * @protected\n *\n * @param {module:core/plugincollection~PluginCollection} pluginCollection\n * @returns {Array.<module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition>}\n */\nfunction getDefaultDropdownDefinitions( pluginCollection ) {\n\tif ( pluginCollection.has( 'ImageBlockEditing' ) && pluginCollection.has( 'ImageInlineEditing' ) ) {\n\t\treturn [ ...DEFAULT_DROPDOWN_DEFINITIONS ];\n\t} else {\n\t\treturn [];\n\t}\n}\n\n// Normalizes an image style option or group provided in the {@link module:image/image~ImageConfig#styles}\n// and returns it in a {@link module:image/imagestyle~ImageStyleOptionDefinition}/\n//\n// @param {Object|String} definition\n//\n// @returns {module:image/imagestyle~ImageStyleOptionDefinition}}\nfunction normalizeDefinition( definition ) {\n\tif ( typeof definition === 'string' ) {\n\t\t// Just the name of the style has been passed, but none of the defaults.\n\t\tif ( !DEFAULT_OPTIONS[ definition ] ) {\n\t\t\t// Normalize the style anyway to prevent errors.\n\t\t\tdefinition = { name: definition };\n\t\t}\n\t\t// Just the name of the style has been passed and it's one of the defaults, just use it.\n\t\t// Clone the style to avoid overriding defaults.\n\t\telse {\n\t\t\tdefinition = { ...DEFAULT_OPTIONS[ definition ] };\n\t\t}\n\t} else {\n\t\t// If an object style has been passed and if the name matches one of the defaults,\n\t\t// extend it with defaults – the user wants to customize a default style.\n\t\t// Note: Don't override the user–defined style object, clone it instead.\n\t\tdefinition = extendStyle( DEFAULT_OPTIONS[ definition.name ], definition );\n\t}\n\n\t// If an icon is defined as a string and correspond with a name\n\t// in default icons, use the default icon provided by the plugin.\n\tif ( typeof definition.icon === 'string' ) {\n\t\tdefinition.icon = DEFAULT_ICONS[ definition.icon ] || definition.icon;\n\t}\n\n\treturn definition;\n}\n\n// Checks if the image style option is valid:\n// * if it has the modelElements fields defined and filled,\n// * if the defined modelElements are supported by any of the loaded image editing plugins.\n// It also displays a console warning these conditions are not met.\n//\n// @param {module:image/imagestyle~ImageStyleOptionDefinition} image style option\n// @param {Object.<String,Boolean>} { isBlockPluginLoaded, isInlinePluginLoaded }\n//\n// @returns Boolean\nfunction isValidOption( option, { isBlockPluginLoaded, isInlinePluginLoaded } ) {\n\tconst { modelElements, name } = option;\n\n\tif ( !modelElements || !modelElements.length || !name ) {\n\t\twarnInvalidStyle( { style: option } );\n\n\t\treturn false;\n\t} else {\n\t\tconst supportedElements = [ isBlockPluginLoaded ? 'imageBlock' : null, isInlinePluginLoaded ? 'imageInline' : null ];\n\n\t\t// Check if the option is supported by any of the loaded plugins.\n\t\tif ( !modelElements.some( elementName => supportedElements.includes( elementName ) ) ) {\n\t\t\t/**\n\t\t\t * In order to work correctly, each image style {@link module:image/imagestyle~ImageStyleOptionDefinition option}\n\t\t\t * requires specific model elements (also: types of images) to be supported by the editor.\n\t\t\t *\n\t\t\t * Model element names to which the image style option can be applied are defined in the\n\t\t\t * {@link module:image/imagestyle~ImageStyleOptionDefinition#modelElements} property of the style option\n\t\t\t * definition.\n\t\t\t *\n\t\t\t * Explore the warning in the console to find out precisely which option is not supported and which editor plugins\n\t\t\t * are missing. Make sure these plugins are loaded in your editor to get this image style option working.\n\t\t\t *\n\t\t\t * @error image-style-missing-dependency\n\t\t\t * @param {String} [option] The name of the unsupported option.\n\t\t\t * @param {String} [missingPlugins] The names of the plugins one of which has to be loaded for the particular option.\n\t\t\t */\n\t\t\tlogWarning( 'image-style-missing-dependency', {\n\t\t\t\tstyle: option,\n\t\t\t\tmissingPlugins: modelElements.map( name => name === 'imageBlock' ? 'ImageBlockEditing' : 'ImageInlineEditing' )\n\t\t\t} );\n\n\t\t\treturn false;\n\t\t}\n\t}\n\n\treturn true;\n}\n\n// Extends the default style with a style provided by the developer.\n// Note: Don't override the custom–defined style object, clone it instead.\n//\n// @param {module:image/imagestyle~ImageStyleOptionDefinition} source\n// @param {Object} style\n//\n// @returns {module:image/imagestyle~ImageStyleOptionDefinition}\nfunction extendStyle( source, style ) {\n\tconst extendedStyle = { ...style };\n\n\tfor ( const prop in source ) {\n\t\tif ( !Object.prototype.hasOwnProperty.call( style, prop ) ) {\n\t\t\textendedStyle[ prop ] = source[ prop ];\n\t\t}\n\t}\n\n\treturn extendedStyle;\n}\n\n// Displays a console warning with the 'image-style-configuration-definition-invalid' error.\n// @param {Object} info\nfunction warnInvalidStyle( info ) {\n\t/**\n\t * The image style definition provided in the configuration is invalid.\n\t *\n\t * Please make sure the definition implements properly one of the following:\n\t *\n\t * * {@link module:image/imagestyle~ImageStyleOptionDefinition image style option definition},\n\t * * {@link module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition image style dropdown definition}\n\t *\n\t * @error image-style-configuration-definition-invalid\n\t * @param {String} [dropdown] The name of the invalid drop-down\n\t * @param {String} [style] The name of the invalid image style option\n\t */\n\tlogWarning( 'image-style-configuration-definition-invalid', info );\n}\n\nexport default {\n\tnormalizeStyles,\n\tgetDefaultStylesConfiguration,\n\tgetDefaultDropdownDefinitions,\n\twarnInvalidStyle,\n\tDEFAULT_OPTIONS,\n\tDEFAULT_ICONS,\n\tDEFAULT_DROPDOWN_DEFINITIONS\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * @module image/imagestyle/converters\n */\n\n/**\n * Returns a converter for the `imageStyle` attribute. It can be used for adding, changing and removing the attribute.\n *\n * @param {Array.<module:image/imagestyle~ImageStyleOptionDefinition>} styles\n * An array containing available image style options.\n * @returns {Function} A model-to-view attribute converter.\n */\nexport function modelToViewStyleAttribute( styles ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check if there is class name associated with given value.\n\t\tconst newStyle = getStyleDefinitionByName( data.attributeNewValue, styles );\n\t\tconst oldStyle = getStyleDefinitionByName( data.attributeOldValue, styles );\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item );\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\tif ( oldStyle ) {\n\t\t\tviewWriter.removeClass( oldStyle.className, viewElement );\n\t\t}\n\n\t\tif ( newStyle ) {\n\t\t\tviewWriter.addClass( newStyle.className, viewElement );\n\t\t}\n\t};\n}\n\n/**\n * Returns a view-to-model converter converting image CSS classes to a proper value in the model.\n *\n * @param {Array.<module:image/imagestyle~ImageStyleOptionDefinition>} styles\n * Image style options for which the converter is created.\n * @returns {Function} A view-to-model converter.\n */\nexport function viewToModelStyleAttribute( styles ) {\n\t// Convert only non–default styles.\n\tconst nonDefaultStyles = {\n\t\timageInline: styles.filter( style => !style.isDefault && style.modelElements.includes( 'imageInline' ) ),\n\t\timageBlock: styles.filter( style => !style.isDefault && style.modelElements.includes( 'imageBlock' ) )\n\t};\n\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !data.modelRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewElement = data.viewItem;\n\t\tconst modelImageElement = first( data.modelRange.getItems() );\n\n\t\t// Run this converter only if an image has been found in the model.\n\t\t// In some cases it may not be found (for example if we run this on a figure with different type than image).\n\t\tif ( !modelImageElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// ...and the `imageStyle` attribute is allowed for that element, otherwise stop conversion early.\n\t\tif ( !conversionApi.schema.checkAttribute( modelImageElement, 'imageStyle' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Convert styles one by one.\n\t\tfor ( const style of nonDefaultStyles[ modelImageElement.name ] ) {\n\t\t\t// Try to consume class corresponding with the style.\n\t\t\tif ( conversionApi.consumable.consume( viewElement, { classes: style.className } ) ) {\n\t\t\t\t// And convert this style to model attribute.\n\t\t\t\tconversionApi.writer.setAttribute( 'imageStyle', style.name, modelImageElement );\n\t\t\t}\n\t\t}\n\t};\n}\n\n// Returns the style with a given `name` from an array of styles.\n//\n// @param {String} name\n// @param {Array.<module:image/imagestyle~ImageStyleOptionDefinition> } styles\n// @returns {module:image/imagestyle~ImageStyleOptionDefinition|undefined}\nfunction getStyleDefinitionByName( name, styles ) {\n\tfor ( const style of styles ) {\n\t\tif ( style.name === name ) {\n\t\t\treturn style;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/imagestyleediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageStyleCommand from './imagestylecommand';\nimport ImageUtils from '../imageutils';\nimport utils from './utils';\nimport { viewToModelStyleAttribute, modelToViewStyleAttribute } from './converters';\n\n/**\n * The image style engine plugin. It sets the default configuration, creates converters and registers\n * {@link module:image/imagestyle/imagestylecommand~ImageStyleCommand ImageStyleCommand}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageStyleEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageStyleEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst { normalizeStyles, getDefaultStylesConfiguration } = utils;\n\t\tconst editor = this.editor;\n\t\tconst isBlockPluginLoaded = editor.plugins.has( 'ImageBlockEditing' );\n\t\tconst isInlinePluginLoaded = editor.plugins.has( 'ImageInlineEditing' );\n\n\t\teditor.config.define( 'image.styles', getDefaultStylesConfiguration( isBlockPluginLoaded, isInlinePluginLoaded ) );\n\n\t\t/**\n\t\t * It contains a list of the normalized and validated style options.\n\t\t *\n\t\t * * Each option contains a complete icon markup.\n\t\t * * The style options not supported by any of the loaded image editing plugins (\n\t\t * {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} or\n\t\t * {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`}) are filtered out.\n\t\t *\n\t\t * @protected\n\t\t * @readonly\n\t\t * @type {module:image/imagestyle~ImageStyleConfig}\n\t\t */\n\t\tthis.normalizedStyles = normalizeStyles( {\n\t\t\tconfiguredStyles: editor.config.get( 'image.styles' ),\n\t\t\tisBlockPluginLoaded,\n\t\t\tisInlinePluginLoaded\n\t\t} );\n\n\t\tthis._setupConversion( isBlockPluginLoaded, isInlinePluginLoaded );\n\t\tthis._setupPostFixer();\n\n\t\t// Register imageStyle command.\n\t\teditor.commands.add( 'imageStyle', new ImageStyleCommand( editor, this.normalizedStyles ) );\n\t}\n\n\t/**\n\t * Sets the editor conversion taking the presence of\n\t * {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`}\n\t * and {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugins into consideration.\n\t *\n\t * @private\n\t * @param {Boolean} isBlockPluginLoaded\n\t * @param {Boolean} isInlinePluginLoaded\n\t */\n\t_setupConversion( isBlockPluginLoaded, isInlinePluginLoaded ) {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\tconst modelToViewConverter = modelToViewStyleAttribute( this.normalizedStyles );\n\t\tconst viewToModelConverter = viewToModelStyleAttribute( this.normalizedStyles );\n\n\t\teditor.editing.downcastDispatcher.on( 'attribute:imageStyle', modelToViewConverter );\n\t\teditor.data.downcastDispatcher.on( 'attribute:imageStyle', modelToViewConverter );\n\n\t\t// Allow imageStyle attribute in image and imageInline.\n\t\t// We could call it 'style' but https://github.com/ckeditor/ckeditor5-engine/issues/559.\n\t\tif ( isBlockPluginLoaded ) {\n\t\t\tschema.extend( 'imageBlock', { allowAttributes: 'imageStyle' } );\n\n\t\t\t// Converter for figure element from view to model.\n\t\t\teditor.data.upcastDispatcher.on( 'element:figure', viewToModelConverter, { priority: 'low' } );\n\t\t}\n\n\t\tif ( isInlinePluginLoaded ) {\n\t\t\tschema.extend( 'imageInline', { allowAttributes: 'imageStyle' } );\n\n\t\t\t// Converter for the img element from view to model.\n\t\t\teditor.data.upcastDispatcher.on( 'element:img', viewToModelConverter, { priority: 'low' } );\n\t\t}\n\t}\n\n\t/**\n\t * Registers a post-fixer that will make sure that the style attribute value is correct for a specific image type (block vs inline).\n\t *\n\t * @private\n\t */\n\t_setupPostFixer() {\n\t\tconst editor = this.editor;\n\t\tconst document = editor.model.document;\n\n\t\tconst imageUtils = editor.plugins.get( ImageUtils );\n\t\tconst stylesMap = new Map( this.normalizedStyles.map( style => [ style.name, style ] ) );\n\n\t\t// Make sure that style attribute is valid for the image type.\n\t\tdocument.registerPostFixer( writer => {\n\t\t\tlet changed = false;\n\n\t\t\tfor ( const change of document.differ.getChanges() ) {\n\t\t\t\tif ( change.type == 'insert' || change.type == 'attribute' && change.attributeKey == 'imageStyle' ) {\n\t\t\t\t\tlet element = change.type == 'insert' ? change.position.nodeAfter : change.range.start.nodeAfter;\n\n\t\t\t\t\tif ( element && element.is( 'element', 'paragraph' ) && element.childCount > 0 ) {\n\t\t\t\t\t\telement = element.getChild( 0 );\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( !imageUtils.isImage( element ) ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst imageStyle = element.getAttribute( 'imageStyle' );\n\n\t\t\t\t\tif ( !imageStyle ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst imageStyleDefinition = stylesMap.get( imageStyle );\n\n\t\t\t\t\tif ( !imageStyleDefinition || !imageStyleDefinition.modelElements.includes( element.name ) ) {\n\t\t\t\t\t\twriter.removeAttribute( 'imageStyle', element );\n\t\t\t\t\t\tchanged = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn changed;\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imagestyle.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/imagestyleui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView, createDropdown, addToolbarToDropdown, SplitButtonView } from 'ckeditor5/src/ui';\nimport ImageStyleEditing from './imagestyleediting';\nimport utils from './utils';\nimport { isObject, identity } from 'lodash-es';\n\nimport '../../theme/imagestyle.css';\n\n/**\n * The image style UI plugin.\n *\n * It registers buttons corresponding to the {@link module:image/image~ImageConfig#styles} configuration.\n * It also registers the {@link module:image/imagestyle/utils~DEFAULT_DROPDOWN_DEFINITIONS default drop-downs} and the\n * custom drop-downs defined by the developer in the {@link module:image/image~ImageConfig#toolbar} configuration.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageStyleUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageStyleEditing ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageStyleUI';\n\t}\n\n\t/**\n\t * Returns the default localized style titles provided by the plugin.\n\t *\n\t * The following localized titles corresponding with\n\t * {@link module:image/imagestyle/utils~DEFAULT_OPTIONS} are available:\n\t *\n\t * * `'Wrap text'`,\n\t * * `'Break text'`,\n\t * * `'In line'`,\n\t * * `'Full size image'`,\n\t * * `'Side image'`,\n\t * * `'Left aligned image'`,\n\t * * `'Centered image'`,\n\t * * `'Right aligned image'`\n\t *\n\t * @returns {Object.<String,String>}\n\t */\n\tget localizedDefaultStylesTitles() {\n\t\tconst t = this.editor.t;\n\n\t\treturn {\n\t\t\t'Wrap text': t( 'Wrap text' ),\n\t\t\t'Break text': t( 'Break text' ),\n\t\t\t'In line': t( 'In line' ),\n\t\t\t'Full size image': t( 'Full size image' ),\n\t\t\t'Side image': t( 'Side image' ),\n\t\t\t'Left aligned image': t( 'Left aligned image' ),\n\t\t\t'Centered image': t( 'Centered image' ),\n\t\t\t'Right aligned image': t( 'Right aligned image' )\n\t\t};\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst plugins = this.editor.plugins;\n\t\tconst toolbarConfig = this.editor.config.get( 'image.toolbar' ) || [];\n\n\t\tconst definedStyles = translateStyles(\n\t\t\tplugins.get( 'ImageStyleEditing' ).normalizedStyles,\n\t\t\tthis.localizedDefaultStylesTitles\n\t\t);\n\n\t\tfor ( const styleConfig of definedStyles ) {\n\t\t\tthis._createButton( styleConfig );\n\t\t}\n\n\t\tconst definedDropdowns = translateStyles(\n\t\t\t[ ...toolbarConfig.filter( isObject ), ...utils.getDefaultDropdownDefinitions( plugins ) ],\n\t\t\tthis.localizedDefaultStylesTitles\n\t\t);\n\n\t\tfor ( const dropdownConfig of definedDropdowns ) {\n\t\t\tthis._createDropdown( dropdownConfig, definedStyles );\n\t\t}\n\t}\n\n\t/**\n\t * Creates a dropdown and stores it in the editor {@link module:ui/componentfactory~ComponentFactory}.\n\t *\n\t * @private\n\t * @param {module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition} dropdownConfig\n\t * @param {Array.<module:image/imagestyle~ImageStyleOptionDefinition>} definedStyles\n\t */\n\t_createDropdown( dropdownConfig, definedStyles ) {\n\t\tconst factory = this.editor.ui.componentFactory;\n\n\t\tfactory.add( dropdownConfig.name, locale => {\n\t\t\tlet defaultButton;\n\n\t\t\tconst { defaultItem, items, title } = dropdownConfig;\n\t\t\tconst buttonViews = items\n\t\t\t\t.filter( itemName => definedStyles.find( ( { name } ) => getUIComponentName( name ) === itemName ) )\n\t\t\t\t.map( buttonName => {\n\t\t\t\t\tconst button = factory.create( buttonName );\n\n\t\t\t\t\tif ( buttonName === defaultItem ) {\n\t\t\t\t\t\tdefaultButton = button;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn button;\n\t\t\t\t} );\n\n\t\t\tif ( items.length !== buttonViews.length ) {\n\t\t\t\tutils.warnInvalidStyle( { dropdown: dropdownConfig } );\n\t\t\t}\n\n\t\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\t\tconst splitButtonView = dropdownView.buttonView;\n\t\t\tconst splitButtonViewArrow = splitButtonView.arrowView;\n\n\t\t\taddToolbarToDropdown( dropdownView, buttonViews, { enableActiveItemFocusOnDropdownOpen: true } );\n\n\t\t\tsplitButtonView.set( {\n\t\t\t\tlabel: getDropdownButtonTitle( title, defaultButton.label ),\n\t\t\t\tclass: null,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tsplitButtonViewArrow.unbind( 'label' );\n\t\t\tsplitButtonViewArrow.set( {\n\t\t\t\tlabel: title\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'icon' ).toMany( buttonViews, 'isOn', ( ...areOn ) => {\n\t\t\t\tconst index = areOn.findIndex( identity );\n\n\t\t\t\treturn ( index < 0 ) ? defaultButton.icon : buttonViews[ index ].icon;\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'label' ).toMany( buttonViews, 'isOn', ( ...areOn ) => {\n\t\t\t\tconst index = areOn.findIndex( identity );\n\n\t\t\t\treturn getDropdownButtonTitle( title, ( index < 0 ) ? defaultButton.label : buttonViews[ index ].label );\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'isOn' ).toMany( buttonViews, 'isOn', ( ...areOn ) => areOn.some( identity ) );\n\n\t\t\tsplitButtonView.bind( 'class' )\n\t\t\t\t.toMany( buttonViews, 'isOn', ( ...areOn ) => areOn.some( identity ) ? 'ck-splitbutton_flatten' : null );\n\n\t\t\tsplitButtonView.on( 'execute', () => {\n\t\t\t\tif ( !buttonViews.some( ( { isOn } ) => isOn ) ) {\n\t\t\t\t\tdefaultButton.fire( 'execute' );\n\t\t\t\t} else {\n\t\t\t\t\tdropdownView.isOpen = !dropdownView.isOpen;\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' )\n\t\t\t\t.toMany( buttonViews, 'isEnabled', ( ...areEnabled ) => areEnabled.some( identity ) );\n\n\t\t\t// Focus the editable after executing the command.\n\t\t\t// Overrides a default behaviour where the focus is moved to the dropdown button (#12125).\n\t\t\tthis.listenTo( dropdownView, 'execute', () => {\n\t\t\t\tthis.editor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * Creates a button and stores it in the editor {@link module:ui/componentfactory~ComponentFactory}.\n\t *\n\t * @private\n\t * @param {module:image/imagestyle~ImageStyleOptionDefinition} buttonConfig\n\t */\n\t_createButton( buttonConfig ) {\n\t\tconst buttonName = buttonConfig.name;\n\n\t\tthis.editor.ui.componentFactory.add( getUIComponentName( buttonName ), locale => {\n\t\t\tconst command = this.editor.commands.get( 'imageStyle' );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: buttonConfig.title,\n\t\t\t\ticon: buttonConfig.icon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t\t\tview.bind( 'isOn' ).to( command, 'value', value => value === buttonName );\n\t\t\tview.on( 'execute', this._executeCommand.bind( this, buttonName ) );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\t_executeCommand( name ) {\n\t\tthis.editor.execute( 'imageStyle', { value: name } );\n\t\tthis.editor.editing.view.focus();\n\t}\n}\n\n// Returns the translated `title` from the passed styles array.\n//\n// @param {Array.<module:image/imagestyle~ImageStyleOptionDefinition|\n// module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition>} styles\n// @param {Object.<String,String>} titles\n//\n// @returns {Array.<module:image/imagestyle~ImageStyleOptionDefinition|module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition>}\nfunction translateStyles( styles, titles ) {\n\tfor ( const style of styles ) {\n\t\t// Localize the titles of the styles, if a title corresponds with\n\t\t// a localized default provided by the plugin.\n\t\tif ( titles[ style.title ] ) {\n\t\t\tstyle.title = titles[ style.title ];\n\t\t}\n\t}\n\n\treturn styles;\n}\n\n// Returns the image style component name with the \"imageStyle:\" prefix.\n//\n// @param {String} name\n// @returns {String}\nfunction getUIComponentName( name ) {\n\treturn `imageStyle:${ name }`;\n}\n\n// Returns title for the splitbutton containing the dropdown title and default action item title.\n//\n// @param {String|undefined} dropdownTitle\n// @param {String} buttonTitle\n// @returns {String}\nfunction getDropdownButtonTitle( dropdownTitle, buttonTitle ) {\n\treturn ( dropdownTitle ? dropdownTitle + ': ' : '' ) + buttonTitle;\n}\n\n/**\n * # **The image style custom drop-down definition descriptor**\n *\n * This definition can be implemented in the {@link module:image/image~ImageConfig#toolbar image toolbar configuration}\n * to define a completely custom drop-down in the image toolbar.\n *\n *\t\tClassicEditor.create( editorElement, {\n *\t\t\timage: { toolbar: [\n *\t \t\t\t// One of the predefined drop-downs\n *\t \t\t\t'imageStyle:wrapText',\n *\t\t\t\t// Custom drop-down\n *\t\t\t\t{\n *\t\t\t\t\tname: 'imageStyle:customDropdown',\n *\t\t\t\t\ttitle: Custom drop-down title,\n *\t\t\t\t\titems: [ 'imageStyle:alignLeft', 'imageStyle:alignRight' ],\n *\t\t\t\t\tdefaultItem: 'imageStyle:alignLeft'\n *\t\t\t\t}\n *\t\t\t] }\n *\t\t} );\n *\n * **Note:** At the moment it is possible to populate the custom drop-down with only the buttons registered by the `ImageStyle` plugin.\n *\n * The defined drop-down will be registered\n * as the {@link module:ui/dropdown/dropdownview~DropdownView}\n * with the {@link module:ui/dropdown/button/splitbuttonview~SplitButtonView} under the provided name in the\n * {@link module:ui/componentfactory~ComponentFactory}\n *\n * @property {String} name The unique name of the drop-down. It is recommended to precede it with the \"imageStyle:\" prefix\n * to avoid collision with the components' names registered by other plugins.\n *\n * @property {String} [title] The drop-down's title. It will be used as the split button label along with the title of the default item\n * in the following manner: \"Custom drop-down title: Default item title\".\n *\n * Setting `title` to one of\n * {@link module:image/imagestyle/imagestyleui~ImageStyleUI#localizedDefaultStylesTitles}\n * will automatically translate it to the language of the editor.\n *\n * @property {Array.<String>} items The list of the names of the buttons that will be placed in the drop-down's toolbar.\n * Each of the buttons has to be one of the {@link module:image/image~ImageConfig#styles default image style buttons}\n * or to be defined as the {@link module:image/imagestyle~ImageStyleOptionDefinition image styling option}.\n *\n * @property {String} defaultItem The name of one of the buttons from the items list,\n * which will be used as a default button for the drop-down's split button.\n *\n * @typedef {Object} module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/utils\n */\n\n/* global fetch, File */\n\nimport { global } from 'ckeditor5/src/utils';\n\n/**\n * Creates a regular expression used to test for image files.\n *\n *\t\tconst imageType = createImageTypeRegExp( [ 'png', 'jpeg', 'svg+xml', 'vnd.microsoft.icon' ] );\n *\n *\t\tconsole.log( 'is supported image', imageType.test( file.type ) );\n *\n * @param {Array.<String>} types\n * @returns {RegExp}\n */\nexport function createImageTypeRegExp( types ) {\n\t// Sanitize the MIME type name which may include: \"+\", \"-\" or \".\".\n\tconst regExpSafeNames = types.map( type => type.replace( '+', '\\\\+' ) );\n\n\treturn new RegExp( `^image\\\\/(${ regExpSafeNames.join( '|' ) })$` );\n}\n\n/**\n * Creates a promise that fetches the image local source (Base64 or blob) and resolves with a `File` object.\n *\n * @param {module:engine/view/element~Element} image Image whose source to fetch.\n * @returns {Promise.<File>} A promise which resolves when an image source is fetched and converted to a `File` instance.\n * It resolves with a `File` object. If there were any errors during file processing, the promise will be rejected.\n */\nexport function fetchLocalImage( image ) {\n\treturn new Promise( ( resolve, reject ) => {\n\t\tconst imageSrc = image.getAttribute( 'src' );\n\n\t\t// Fetch works asynchronously and so does not block browser UI when processing data.\n\t\tfetch( imageSrc )\n\t\t\t.then( resource => resource.blob() )\n\t\t\t.then( blob => {\n\t\t\t\tconst mimeType = getImageMimeType( blob, imageSrc );\n\t\t\t\tconst ext = mimeType.replace( 'image/', '' );\n\t\t\t\tconst filename = `image.${ ext }`;\n\t\t\t\tconst file = new File( [ blob ], filename, { type: mimeType } );\n\n\t\t\t\tresolve( file );\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\t// Fetch fails only, if it can't make a request due to a network failure or if anything prevented the request\n\t\t\t\t// from completing, i.e. the Content Security Policy rules. It is not possible to detect the exact cause of failure,\n\t\t\t\t// so we are just trying the fallback solution, if general TypeError is thrown.\n\t\t\t\treturn err && err.name === 'TypeError' ?\n\t\t\t\t\tconvertLocalImageOnCanvas( imageSrc ).then( resolve ).catch( reject ) :\n\t\t\t\t\treject( err );\n\t\t\t} );\n\t} );\n}\n\n/**\n * Checks whether a given node is an image element with a local source (Base64 or blob).\n *\n * @param {module:image/imageutils~ImageUtils} imageUtils\n * @param {module:engine/view/node~Node} node The node to check.\n * @returns {Boolean}\n */\nexport function isLocalImage( imageUtils, node ) {\n\tif ( !imageUtils.isInlineImageView( node ) || !node.getAttribute( 'src' ) ) {\n\t\treturn false;\n\t}\n\n\treturn node.getAttribute( 'src' ).match( /^data:image\\/\\w+;base64,/g ) ||\n\t\tnode.getAttribute( 'src' ).match( /^blob:/g );\n}\n\n// Extracts an image type based on its blob representation or its source.\n//\n// @param {String} src Image `src` attribute value.\n// @param {Blob} blob Image blob representation.\n// @returns {String}\nfunction getImageMimeType( blob, src ) {\n\tif ( blob.type ) {\n\t\treturn blob.type;\n\t} else if ( src.match( /data:(image\\/\\w+);base64/ ) ) {\n\t\treturn src.match( /data:(image\\/\\w+);base64/ )[ 1 ].toLowerCase();\n\t} else {\n\t\t// Fallback to 'jpeg' as common extension.\n\t\treturn 'image/jpeg';\n\t}\n}\n\n// Creates a promise that converts the image local source (Base64 or blob) to a blob using canvas and resolves\n// with a `File` object.\n//\n// @param {String} imageSrc Image `src` attribute value.\n// @returns {Promise.<File>} A promise which resolves when an image source is converted to a `File` instance.\n// It resolves with a `File` object. If there were any errors during file processing, the promise will be rejected.\nfunction convertLocalImageOnCanvas( imageSrc ) {\n\treturn getBlobFromCanvas( imageSrc ).then( blob => {\n\t\tconst mimeType = getImageMimeType( blob, imageSrc );\n\t\tconst ext = mimeType.replace( 'image/', '' );\n\t\tconst filename = `image.${ ext }`;\n\n\t\treturn new File( [ blob ], filename, { type: mimeType } );\n\t} );\n}\n\n// Creates a promise that resolves with a `Blob` object converted from the image source (Base64 or blob).\n//\n// @param {String} imageSrc Image `src` attribute value.\n// @returns {Promise.<Blob>}\nfunction getBlobFromCanvas( imageSrc ) {\n\treturn new Promise( ( resolve, reject ) => {\n\t\tconst image = global.document.createElement( 'img' );\n\n\t\timage.addEventListener( 'load', () => {\n\t\t\tconst canvas = global.document.createElement( 'canvas' );\n\n\t\t\tcanvas.width = image.width;\n\t\t\tcanvas.height = image.height;\n\n\t\t\tconst ctx = canvas.getContext( '2d' );\n\n\t\t\tctx.drawImage( image, 0, 0 );\n\n\t\t\tcanvas.toBlob( blob => blob ? resolve( blob ) : reject() );\n\t\t} );\n\n\t\timage.addEventListener( 'error', () => reject() );\n\n\t\timage.src = imageSrc;\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/imageuploadui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { FileDialogButtonView } from 'ckeditor5/src/upload';\nimport { createImageTypeRegExp } from './utils';\n\n/**\n * The image upload button plugin.\n *\n * For a detailed overview, check the {@glink features/images/image-upload/image-upload Image upload feature} documentation.\n *\n * Adds the `'uploadImage'` button to the {@link module:ui/componentfactory~ComponentFactory UI component factory}\n * and also the `imageUpload` button as an alias for backward compatibility.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageUploadUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageUploadUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst componentCreator = locale => {\n\t\t\tconst view = new FileDialogButtonView( locale );\n\t\t\tconst command = editor.commands.get( 'uploadImage' );\n\t\t\tconst imageTypes = editor.config.get( 'image.upload.types' );\n\t\t\tconst imageTypesRegExp = createImageTypeRegExp( imageTypes );\n\n\t\t\tview.set( {\n\t\t\t\tacceptedType: imageTypes.map( type => `image/${ type }` ).join( ',' ),\n\t\t\t\tallowMultipleFiles: true\n\t\t\t} );\n\n\t\t\tview.buttonView.set( {\n\t\t\t\tlabel: t( 'Insert image' ),\n\t\t\t\ticon: icons.image,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.buttonView.bind( 'isEnabled' ).to( command );\n\n\t\t\tview.on( 'done', ( evt, files ) => {\n\t\t\t\tconst imagesToUpload = Array.from( files ).filter( file => imageTypesRegExp.test( file.type ) );\n\n\t\t\t\tif ( imagesToUpload.length ) {\n\t\t\t\t\teditor.execute( 'uploadImage', { file: imagesToUpload } );\n\n\t\t\t\t\teditor.editing.view.focus();\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t};\n\n\t\t// Setup `uploadImage` button and add `imageUpload` button as an alias for backward compatibility.\n\t\teditor.ui.componentFactory.add( 'uploadImage', componentCreator );\n\t\teditor.ui.componentFactory.add( 'imageUpload', componentCreator );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageuploadprogress.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageuploadicon.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageuploadloader.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/imageuploadprogress\n */\n\n/* globals setTimeout */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { FileRepository } from 'ckeditor5/src/upload';\n\nimport '../../theme/imageuploadprogress.css';\nimport '../../theme/imageuploadicon.css';\nimport '../../theme/imageuploadloader.css';\n\n/**\n * The image upload progress plugin.\n * It shows a placeholder when the image is read from the disk and a progress bar while the image is uploading.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageUploadProgress extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageUploadProgress';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The image placeholder that is displayed before real image data can be accessed.\n\t\t *\n\t\t * For the record, this image is a 1x1 px GIF with an aspect ratio set by CSS.\n\t\t *\n\t\t * @protected\n\t\t * @member {String} #placeholder\n\t\t */\n\t\tthis.placeholder = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Upload status change - update image's view according to that status.\n\t\tif ( editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\teditor.editing.downcastDispatcher.on( 'attribute:uploadStatus:imageBlock', ( ...args ) => this.uploadStatusChange( ...args ) );\n\t\t}\n\n\t\tif ( editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\teditor.editing.downcastDispatcher.on( 'attribute:uploadStatus:imageInline', ( ...args ) => this.uploadStatusChange( ...args ) );\n\t\t}\n\t}\n\n\t/**\n\t * This method is called each time the image `uploadStatus` attribute is changed.\n\t *\n\t * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n\t * @param {Object} data Additional information about the change.\n\t * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\n\t */\n\tuploadStatusChange( evt, data, conversionApi ) {\n\t\tconst editor = this.editor;\n\t\tconst modelImage = data.item;\n\t\tconst uploadId = modelImage.getAttribute( 'uploadId' );\n\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst status = uploadId ? data.attributeNewValue : null;\n\t\tconst placeholder = this.placeholder;\n\t\tconst viewFigure = editor.editing.mapper.toViewElement( modelImage );\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\tif ( status == 'reading' ) {\n\t\t\t// Start \"appearing\" effect and show placeholder with infinite progress bar on the top\n\t\t\t// while image is read from disk.\n\t\t\t_startAppearEffect( viewFigure, viewWriter );\n\t\t\t_showPlaceholder( imageUtils, placeholder, viewFigure, viewWriter );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Show progress bar on the top of the image when image is uploading.\n\t\tif ( status == 'uploading' ) {\n\t\t\tconst loader = fileRepository.loaders.get( uploadId );\n\n\t\t\t// Start appear effect if needed - see https://github.com/ckeditor/ckeditor5-image/issues/191.\n\t\t\t_startAppearEffect( viewFigure, viewWriter );\n\n\t\t\tif ( !loader ) {\n\t\t\t\t// There is no loader associated with uploadId - this means that image came from external changes.\n\t\t\t\t// In such cases we still want to show the placeholder until image is fully uploaded.\n\t\t\t\t// Show placeholder if needed - see https://github.com/ckeditor/ckeditor5-image/issues/191.\n\t\t\t\t_showPlaceholder( imageUtils, placeholder, viewFigure, viewWriter );\n\t\t\t} else {\n\t\t\t\t// Hide placeholder and initialize progress bar showing upload progress.\n\t\t\t\t_hidePlaceholder( viewFigure, viewWriter );\n\t\t\t\t_showProgressBar( viewFigure, viewWriter, loader, editor.editing.view );\n\t\t\t\t_displayLocalImage( imageUtils, viewFigure, viewWriter, loader );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\tif ( status == 'complete' && fileRepository.loaders.get( uploadId ) ) {\n\t\t\t_showCompleteIcon( viewFigure, viewWriter, editor.editing.view );\n\t\t}\n\n\t\t// Clean up.\n\t\t_hideProgressBar( viewFigure, viewWriter );\n\t\t_hidePlaceholder( viewFigure, viewWriter );\n\t\t_stopAppearEffect( viewFigure, viewWriter );\n\t}\n}\n\n// Adds ck-appear class to the image figure if one is not already applied.\n//\n// @param {module:engine/view/containerelement~ContainerElement} viewFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction _startAppearEffect( viewFigure, writer ) {\n\tif ( !viewFigure.hasClass( 'ck-appear' ) ) {\n\t\twriter.addClass( 'ck-appear', viewFigure );\n\t}\n}\n\n// Removes ck-appear class to the image figure if one is not already removed.\n//\n// @param {module:engine/view/containerelement~ContainerElement} viewFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction _stopAppearEffect( viewFigure, writer ) {\n\twriter.removeClass( 'ck-appear', viewFigure );\n}\n\n// Shows placeholder together with infinite progress bar on given image figure.\n//\n// @param {module:image/imageutils~ImageUtils} imageUtils\n// @param {String} Data-uri with a svg placeholder.\n// @param {module:engine/view/containerelement~ContainerElement} viewFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction _showPlaceholder( imageUtils, placeholder, viewFigure, writer ) {\n\tif ( !viewFigure.hasClass( 'ck-image-upload-placeholder' ) ) {\n\t\twriter.addClass( 'ck-image-upload-placeholder', viewFigure );\n\t}\n\n\tconst viewImg = imageUtils.findViewImgElement( viewFigure );\n\n\tif ( viewImg.getAttribute( 'src' ) !== placeholder ) {\n\t\twriter.setAttribute( 'src', placeholder, viewImg );\n\t}\n\n\tif ( !_getUIElement( viewFigure, 'placeholder' ) ) {\n\t\twriter.insert( writer.createPositionAfter( viewImg ), _createPlaceholder( writer ) );\n\t}\n}\n\n// Removes placeholder together with infinite progress bar on given image figure.\n//\n// @param {module:engine/view/containerelement~ContainerElement} viewFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction _hidePlaceholder( viewFigure, writer ) {\n\tif ( viewFigure.hasClass( 'ck-image-upload-placeholder' ) ) {\n\t\twriter.removeClass( 'ck-image-upload-placeholder', viewFigure );\n\t}\n\n\t_removeUIElement( viewFigure, writer, 'placeholder' );\n}\n\n// Shows progress bar displaying upload progress.\n// Attaches it to the file loader to update when upload percentace is changed.\n//\n// @param {module:engine/view/containerelement~ContainerElement} viewFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @param {module:upload/filerepository~FileLoader} loader\n// @param {module:engine/view/view~View} view\nfunction _showProgressBar( viewFigure, writer, loader, view ) {\n\tconst progressBar = _createProgressBar( writer );\n\twriter.insert( writer.createPositionAt( viewFigure, 'end' ), progressBar );\n\n\t// Update progress bar width when uploadedPercent is changed.\n\tloader.on( 'change:uploadedPercent', ( evt, name, value ) => {\n\t\tview.change( writer => {\n\t\t\twriter.setStyle( 'width', value + '%', progressBar );\n\t\t} );\n\t} );\n}\n\n// Hides upload progress bar.\n//\n// @param {module:engine/view/containerelement~ContainerElement} viewFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\nfunction _hideProgressBar( viewFigure, writer ) {\n\t_removeUIElement( viewFigure, writer, 'progressBar' );\n}\n\n// Shows complete icon and hides after a certain amount of time.\n//\n// @param {module:engine/view/containerelement~ContainerElement} viewFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @param {module:engine/view/view~View} view\nfunction _showCompleteIcon( viewFigure, writer, view ) {\n\tconst completeIcon = writer.createUIElement( 'div', { class: 'ck-image-upload-complete-icon' } );\n\n\twriter.insert( writer.createPositionAt( viewFigure, 'end' ), completeIcon );\n\n\tsetTimeout( () => {\n\t\tview.change( writer => writer.remove( writer.createRangeOn( completeIcon ) ) );\n\t}, 3000 );\n}\n\n// Create progress bar element using {@link module:engine/view/uielement~UIElement}.\n//\n// @private\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @returns {module:engine/view/uielement~UIElement}\nfunction _createProgressBar( writer ) {\n\tconst progressBar = writer.createUIElement( 'div', { class: 'ck-progress-bar' } );\n\n\twriter.setCustomProperty( 'progressBar', true, progressBar );\n\n\treturn progressBar;\n}\n\n// Create placeholder element using {@link module:engine/view/uielement~UIElement}.\n//\n// @private\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @returns {module:engine/view/uielement~UIElement}\nfunction _createPlaceholder( writer ) {\n\tconst placeholder = writer.createUIElement( 'div', { class: 'ck-upload-placeholder-loader' } );\n\n\twriter.setCustomProperty( 'placeholder', true, placeholder );\n\n\treturn placeholder;\n}\n\n// Returns {@link module:engine/view/uielement~UIElement} of given unique property from image figure element.\n// Returns `undefined` if element is not found.\n//\n// @private\n// @param {module:engine/view/element~Element} imageFigure\n// @param {String} uniqueProperty\n// @returns {module:engine/view/uielement~UIElement|undefined}\nfunction _getUIElement( imageFigure, uniqueProperty ) {\n\tfor ( const child of imageFigure.getChildren() ) {\n\t\tif ( child.getCustomProperty( uniqueProperty ) ) {\n\t\t\treturn child;\n\t\t}\n\t}\n}\n\n// Removes {@link module:engine/view/uielement~UIElement} of given unique property from image figure element.\n//\n// @private\n// @param {module:engine/view/element~Element} imageFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @param {String} uniqueProperty\nfunction _removeUIElement( viewFigure, writer, uniqueProperty ) {\n\tconst element = _getUIElement( viewFigure, uniqueProperty );\n\n\tif ( element ) {\n\t\twriter.remove( writer.createRangeOn( element ) );\n\t}\n}\n\n// Displays local data from file loader.\n//\n// @param {module:image/imageutils~ImageUtils} imageUtils\n// @param {module:engine/view/element~Element} imageFigure\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer\n// @param {module:upload/filerepository~FileLoader} loader\nfunction _displayLocalImage( imageUtils, viewFigure, writer, loader ) {\n\tif ( loader.data ) {\n\t\tconst viewImg = imageUtils.findViewImgElement( viewFigure );\n\n\t\twriter.setAttribute( 'src', loader.data, viewImg );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { FileRepository } from 'ckeditor5/src/upload';\nimport { Command } from 'ckeditor5/src/core';\nimport { toArray } from 'ckeditor5/src/utils';\n\n/**\n * @module image/imageupload/uploadimagecommand\n */\n\n/**\n * The upload image command.\n *\n * The command is registered by the {@link module:image/imageupload/imageuploadediting~ImageUploadEditing} plugin as `uploadImage`\n * and it is also available via aliased `imageUpload` name.\n *\n * In order to upload an image at the current selection position\n * (according to the {@link module:widget/utils~findOptimalInsertionRange} algorithm),\n * execute the command and pass the native image file instance:\n *\n *\t\tthis.listenTo( editor.editing.view.document, 'clipboardInput', ( evt, data ) => {\n *\t\t\t// Assuming that only images were pasted:\n *\t\t\tconst images = Array.from( data.dataTransfer.files );\n *\n *\t\t\t// Upload the first image:\n *\t\t\teditor.execute( 'uploadImage', { file: images[ 0 ] } );\n *\t\t} );\n *\n * It is also possible to insert multiple images at once:\n *\n *\t\teditor.execute( 'uploadImage', {\n *\t\t\tfile: [\n *\t\t\t\tfile1,\n *\t\t\t\tfile2\n *\t\t\t]\n *\t\t} );\n *\n * @extends module:core/command~Command\n */\nexport default class UploadImageCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst selectedElement = editor.model.document.selection.getSelectedElement();\n\n\t\t// TODO: This needs refactoring.\n\t\tthis.isEnabled = imageUtils.isImageAllowed() || imageUtils.isImage( selectedElement );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} options Options for the executed command.\n\t * @param {File|Array.<File>} options.file The image file or an array of image files to upload.\n\t */\n\texecute( options ) {\n\t\tconst files = toArray( options.file );\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst imageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\t// In case of multiple files, each file (starting from the 2nd) will be inserted at a position that\n\t\t// follows the previous one. That will move the selection and, to stay on the safe side and make sure\n\t\t// all images inherit the same selection attributes, they are collected beforehand.\n\t\t//\n\t\t// Applying these attributes ensures, for instance, that inserting an (inline) image into a link does\n\t\t// not split that link but preserves its continuity.\n\t\t//\n\t\t// Note: Selection attributes that do not make sense for images will be filtered out by insertImage() anyway.\n\t\tconst selectionAttributes = Object.fromEntries( selection.getAttributes() );\n\n\t\tfiles.forEach( ( file, index ) => {\n\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\t// Inserting of an inline image replace the selected element and make a selection on the inserted image.\n\t\t\t// Therefore inserting multiple inline images requires creating position after each element.\n\t\t\tif ( index && selectedElement && imageUtils.isImage( selectedElement ) ) {\n\t\t\t\tconst position = this.editor.model.createPositionAfter( selectedElement );\n\n\t\t\t\tthis._uploadImage( file, selectionAttributes, position );\n\t\t\t} else {\n\t\t\t\tthis._uploadImage( file, selectionAttributes );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Handles uploading single file.\n\t *\n\t * @private\n\t * @param {File} file\n\t * @param {Object} attributes\n\t * @param {module:engine/model/position~Position} position\n\t */\n\t_uploadImage( file, attributes, position ) {\n\t\tconst editor = this.editor;\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst loader = fileRepository.createLoader( file );\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\t// Do not throw when upload adapter is not set. FileRepository will log an error anyway.\n\t\tif ( !loader ) {\n\t\t\treturn;\n\t\t}\n\n\t\timageUtils.insertImage( { ...attributes, uploadId: loader.id }, position );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/imageuploadediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport { UpcastWriter } from 'ckeditor5/src/engine';\n\nimport { Notification } from 'ckeditor5/src/ui';\nimport { ClipboardPipeline } from 'ckeditor5/src/clipboard';\nimport { FileRepository } from 'ckeditor5/src/upload';\nimport { env } from 'ckeditor5/src/utils';\n\nimport ImageUtils from '../imageutils';\nimport UploadImageCommand from './uploadimagecommand';\nimport { fetchLocalImage, isLocalImage } from '../../src/imageupload/utils';\nimport { createImageTypeRegExp } from './utils';\n\n/**\n * The editing part of the image upload feature. It registers the `'uploadImage'` command\n * and the `imageUpload` command as an aliased name.\n *\n * When an image is uploaded, it fires the {@link ~ImageUploadEditing#event:uploadComplete `uploadComplete`} event\n * that allows adding custom attributes to the {@link module:engine/model/element~Element image element}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageUploadEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FileRepository, Notification, ClipboardPipeline, ImageUtils ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'ImageUploadEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'image', {\n\t\t\tupload: {\n\t\t\t\ttypes: [ 'jpeg', 'png', 'gif', 'bmp', 'webp', 'tiff' ]\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * An internal mapping of {@link module:upload/filerepository~FileLoader#id file loader UIDs} and\n\t\t * model elements during the upload.\n\t\t *\n\t\t * Model element of the uploaded image can change, for instance, when {@link module:image/image/imagetypecommand~ImageTypeCommand}\n\t\t * is executed as a result of adding caption or changing image style. As a result, the upload logic must keep track of the model\n\t\t * element (reference) and resolve the upload for the correct model element (instead of the one that landed in the `$graveyard`\n\t\t * after image type changed).\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @member {Map.<String,module:engine/model/element~Element>}\n\t\t */\n\t\tthis._uploadImageElements = new Map();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst doc = editor.model.document;\n\t\tconst conversion = editor.conversion;\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageTypes = createImageTypeRegExp( editor.config.get( 'image.upload.types' ) );\n\t\tconst uploadImageCommand = new UploadImageCommand( editor );\n\n\t\t// Register `uploadImage` command and add `imageUpload` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'uploadImage', uploadImageCommand );\n\t\teditor.commands.add( 'imageUpload', uploadImageCommand );\n\n\t\t// Register upcast converter for uploadId.\n\t\tconversion.for( 'upcast' )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'img',\n\t\t\t\t\tkey: 'uploadId'\n\t\t\t\t},\n\t\t\t\tmodel: 'uploadId'\n\t\t\t} );\n\n\t\t// Handle pasted images.\n\t\t// For every image file, a new file loader is created and a placeholder image is\n\t\t// inserted into the content. Then, those images are uploaded once they appear in the model\n\t\t// (see Document#change listener below).\n\t\tthis.listenTo( editor.editing.view.document, 'clipboardInput', ( evt, data ) => {\n\t\t\t// Skip if non empty HTML data is included.\n\t\t\t// https://github.com/ckeditor/ckeditor5-upload/issues/68\n\t\t\tif ( isHtmlIncluded( data.dataTransfer ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst images = Array.from( data.dataTransfer.files ).filter( file => {\n\t\t\t\t// See https://github.com/ckeditor/ckeditor5-image/pull/254.\n\t\t\t\tif ( !file ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\treturn imageTypes.test( file.type );\n\t\t\t} );\n\n\t\t\tif ( !images.length ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\teditor.model.change( writer => {\n\t\t\t\t// Set selection to paste target.\n\t\t\t\tif ( data.targetRanges ) {\n\t\t\t\t\twriter.setSelection( data.targetRanges.map( viewRange => editor.editing.mapper.toModelRange( viewRange ) ) );\n\t\t\t\t}\n\n\t\t\t\t// Upload images after the selection has changed in order to ensure the command's state is refreshed.\n\t\t\t\teditor.model.enqueueChange( () => {\n\t\t\t\t\teditor.execute( 'uploadImage', { file: images } );\n\t\t\t\t} );\n\t\t\t} );\n\t\t} );\n\n\t\t// Handle HTML pasted with images with base64 or blob sources.\n\t\t// For every image file, a new file loader is created and a placeholder image is\n\t\t// inserted into the content. Then, those images are uploaded once they appear in the model\n\t\t// (see Document#change listener below).\n\t\tthis.listenTo( editor.plugins.get( 'ClipboardPipeline' ), 'inputTransformation', ( evt, data ) => {\n\t\t\tconst fetchableImages = Array.from( editor.editing.view.createRangeIn( data.content ) )\n\t\t\t\t.filter( value => isLocalImage( imageUtils, value.item ) && !value.item.getAttribute( 'uploadProcessed' ) )\n\t\t\t\t.map( value => { return { promise: fetchLocalImage( value.item ), imageElement: value.item }; } );\n\n\t\t\tif ( !fetchableImages.length ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst writer = new UpcastWriter( editor.editing.view.document );\n\n\t\t\tfor ( const fetchableImage of fetchableImages ) {\n\t\t\t\t// Set attribute marking that the image was processed already.\n\t\t\t\twriter.setAttribute( 'uploadProcessed', true, fetchableImage.imageElement );\n\n\t\t\t\tconst loader = fileRepository.createLoader( fetchableImage.promise );\n\n\t\t\t\tif ( loader ) {\n\t\t\t\t\twriter.setAttribute( 'src', '', fetchableImage.imageElement );\n\t\t\t\t\twriter.setAttribute( 'uploadId', loader.id, fetchableImage.imageElement );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Prevents from the browser redirecting to the dropped image.\n\t\teditor.editing.view.document.on( 'dragover', ( evt, data ) => {\n\t\t\tdata.preventDefault();\n\t\t} );\n\n\t\t// Upload placeholder images that appeared in the model.\n\t\tdoc.on( 'change', () => {\n\t\t\t// Note: Reversing changes to start with insertions and only then handle removals. If it was the other way around,\n\t\t\t// loaders for **all** images that land in the $graveyard would abort while in fact only those that were **not** replaced\n\t\t\t// by other images should be aborted.\n\t\t\tconst changes = doc.differ.getChanges( { includeChangesInGraveyard: true } ).reverse();\n\t\t\tconst insertedImagesIds = new Set();\n\n\t\t\tfor ( const entry of changes ) {\n\t\t\t\tif ( entry.type == 'insert' && entry.name != '$text' ) {\n\t\t\t\t\tconst item = entry.position.nodeAfter;\n\t\t\t\t\tconst isInsertedInGraveyard = entry.position.root.rootName == '$graveyard';\n\n\t\t\t\t\tfor ( const imageElement of getImagesFromChangeItem( editor, item ) ) {\n\t\t\t\t\t\t// Check if the image element still has upload id.\n\t\t\t\t\t\tconst uploadId = imageElement.getAttribute( 'uploadId' );\n\n\t\t\t\t\t\tif ( !uploadId ) {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Check if the image is loaded on this client.\n\t\t\t\t\t\tconst loader = fileRepository.loaders.get( uploadId );\n\n\t\t\t\t\t\tif ( !loader ) {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( isInsertedInGraveyard ) {\n\t\t\t\t\t\t\t// If the image was inserted to the graveyard for good (**not** replaced by another image),\n\t\t\t\t\t\t\t// only then abort the loading process.\n\t\t\t\t\t\t\tif ( !insertedImagesIds.has( uploadId ) ) {\n\t\t\t\t\t\t\t\tloader.abort();\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t// Remember the upload id of the inserted image. If it acted as a replacement for another\n\t\t\t\t\t\t\t// image (which landed in the $graveyard), the related loader will not be aborted because\n\t\t\t\t\t\t\t// this is still the same image upload.\n\t\t\t\t\t\t\tinsertedImagesIds.add( uploadId );\n\n\t\t\t\t\t\t\t// Keep the mapping between the upload ID and the image model element so the upload\n\t\t\t\t\t\t\t// can later resolve in the context of the correct model element. The model element could\n\t\t\t\t\t\t\t// change for the same upload if one image was replaced by another (e.g. image type was changed),\n\t\t\t\t\t\t\t// so this may also replace an existing mapping.\n\t\t\t\t\t\t\tthis._uploadImageElements.set( uploadId, imageElement );\n\n\t\t\t\t\t\t\tif ( loader.status == 'idle' ) {\n\t\t\t\t\t\t\t\t// If the image was inserted into content and has not been loaded yet, start loading it.\n\t\t\t\t\t\t\t\tthis._readAndUpload( loader );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Set the default handler for feeding the image element with `src` and `srcset` attributes.\n\t\tthis.on( 'uploadComplete', ( evt, { imageElement, data } ) => {\n\t\t\tconst urls = data.urls ? data.urls : data;\n\n\t\t\tthis.editor.model.change( writer => {\n\t\t\t\twriter.setAttribute( 'src', urls.default, imageElement );\n\t\t\t\tthis._parseAndSetSrcsetAttributeOnImage( urls, imageElement, writer );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst schema = this.editor.model.schema;\n\n\t\t// Setup schema to allow uploadId and uploadStatus for images.\n\t\t// Wait for ImageBlockEditing or ImageInlineEditing to register their elements first,\n\t\t// that's why doing this in afterInit() instead of init().\n\t\tif ( this.editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\tschema.extend( 'imageBlock', {\n\t\t\t\tallowAttributes: [ 'uploadId', 'uploadStatus' ]\n\t\t\t} );\n\t\t}\n\n\t\tif ( this.editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\tschema.extend( 'imageInline', {\n\t\t\t\tallowAttributes: [ 'uploadId', 'uploadStatus' ]\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Reads and uploads an image.\n\t *\n\t * The image is read from the disk and as a Base64-encoded string it is set temporarily to\n\t * `image[src]`. When the image is successfully uploaded, the temporary data is replaced with the target\n\t * image's URL (the URL to the uploaded image on the server).\n\t *\n\t * @protected\n\t * @param {module:upload/filerepository~FileLoader} loader\n\t * @returns {Promise}\n\t */\n\t_readAndUpload( loader ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst t = editor.locale.t;\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst notification = editor.plugins.get( Notification );\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageUploadElements = this._uploadImageElements;\n\n\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\twriter.setAttribute( 'uploadStatus', 'reading', imageUploadElements.get( loader.id ) );\n\t\t} );\n\n\t\treturn loader.read()\n\t\t\t.then( () => {\n\t\t\t\tconst promise = loader.upload();\n\t\t\t\tconst imageElement = imageUploadElements.get( loader.id );\n\n\t\t\t\t// Force re–paint in Safari. Without it, the image will display with a wrong size.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5/issues/1975\n\t\t\t\t/* istanbul ignore next */\n\t\t\t\tif ( env.isSafari ) {\n\t\t\t\t\tconst viewFigure = editor.editing.mapper.toViewElement( imageElement );\n\t\t\t\t\tconst viewImg = imageUtils.findViewImgElement( viewFigure );\n\n\t\t\t\t\teditor.editing.view.once( 'render', () => {\n\t\t\t\t\t\t// Early returns just to be safe. There might be some code ran\n\t\t\t\t\t\t// in between the outer scope and this callback.\n\t\t\t\t\t\tif ( !viewImg.parent ) {\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tconst domFigure = editor.editing.view.domConverter.mapViewToDom( viewImg.parent );\n\n\t\t\t\t\t\tif ( !domFigure ) {\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tconst originalDisplay = domFigure.style.display;\n\n\t\t\t\t\t\tdomFigure.style.display = 'none';\n\n\t\t\t\t\t\t// Make sure this line will never be removed during minification for having \"no effect\".\n\t\t\t\t\t\tdomFigure._ckHack = domFigure.offsetHeight;\n\n\t\t\t\t\t\tdomFigure.style.display = originalDisplay;\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\t\twriter.setAttribute( 'uploadStatus', 'uploading', imageElement );\n\t\t\t\t} );\n\n\t\t\t\treturn promise;\n\t\t\t} )\n\t\t\t.then( data => {\n\t\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\t\tconst imageElement = imageUploadElements.get( loader.id );\n\n\t\t\t\t\twriter.setAttribute( 'uploadStatus', 'complete', imageElement );\n\n\t\t\t\t\t/**\n\t\t\t\t\t * An event fired when an image is uploaded. You can hook into this event to provide\n\t\t\t\t\t * custom attributes to the {@link module:engine/model/element~Element image element} based on the data from\n\t\t\t\t\t * the server.\n\t\t\t\t\t *\n\t\t\t\t\t * \t\tconst imageUploadEditing = editor.plugins.get( 'ImageUploadEditing' );\n\t\t\t\t\t *\n\t\t\t\t\t * \t\timageUploadEditing.on( 'uploadComplete', ( evt, { data, imageElement } ) => {\n\t\t\t\t\t * \t\t\teditor.model.change( writer => {\n\t\t\t\t\t * \t\t\t\twriter.setAttribute( 'someAttribute', 'foo', imageElement );\n\t\t\t\t\t * \t\t\t} );\n\t\t\t\t\t * \t\t} );\n\t\t\t\t\t *\n\t\t\t\t\t * You can also stop the default handler that sets the `src` and `srcset` attributes\n\t\t\t\t\t * if you want to provide custom values for these attributes.\n\t\t\t\t\t *\n\t\t\t\t\t * \t\timageUploadEditing.on( 'uploadComplete', ( evt, { data, imageElement } ) => {\n\t\t\t\t\t * \t\t\tevt.stop();\n\t\t\t\t\t * \t\t} );\n\t\t\t\t\t *\n\t\t\t\t\t * **Note**: This event is fired by the {@link module:image/imageupload/imageuploadediting~ImageUploadEditing} plugin.\n\t\t\t\t\t *\n\t\t\t\t\t * @event uploadComplete\n\t\t\t\t\t * @param {Object} data The `uploadComplete` event data.\n\t\t\t\t\t * @param {Object} data.data The data coming from the upload adapter.\n\t\t\t\t\t * @param {module:engine/model/element~Element} data.imageElement The\n\t\t\t\t\t * model {@link module:engine/model/element~Element image element} that can be customized.\n\t\t\t\t\t */\n\t\t\t\t\tthis.fire( 'uploadComplete', { data, imageElement } );\n\t\t\t\t} );\n\n\t\t\t\tclean();\n\t\t\t} )\n\t\t\t.catch( error => {\n\t\t\t\t// If status is not 'error' nor 'aborted' - throw error because it means that something else went wrong,\n\t\t\t\t// it might be generic error and it would be real pain to find what is going on.\n\t\t\t\tif ( loader.status !== 'error' && loader.status !== 'aborted' ) {\n\t\t\t\t\tthrow error;\n\t\t\t\t}\n\n\t\t\t\t// Might be 'aborted'.\n\t\t\t\tif ( loader.status == 'error' && error ) {\n\t\t\t\t\tnotification.showWarning( error, {\n\t\t\t\t\t\ttitle: t( 'Upload failed' ),\n\t\t\t\t\t\tnamespace: 'upload'\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\t// Permanently remove image from insertion batch.\n\t\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\t\twriter.remove( imageUploadElements.get( loader.id ) );\n\t\t\t\t} );\n\n\t\t\t\tclean();\n\t\t\t} );\n\n\t\tfunction clean() {\n\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\tconst imageElement = imageUploadElements.get( loader.id );\n\n\t\t\t\twriter.removeAttribute( 'uploadId', imageElement );\n\t\t\t\twriter.removeAttribute( 'uploadStatus', imageElement );\n\n\t\t\t\timageUploadElements.delete( loader.id );\n\t\t\t} );\n\n\t\t\tfileRepository.destroyLoader( loader );\n\t\t}\n\t}\n\n\t/**\n\t * Creates the `srcset` attribute based on a given file upload response and sets it as an attribute to a specific image element.\n\t *\n\t * @protected\n\t * @param {Object} data Data object from which `srcset` will be created.\n\t * @param {module:engine/model/element~Element} image The image element on which the `srcset` attribute will be set.\n\t * @param {module:engine/model/writer~Writer} writer\n\t */\n\t_parseAndSetSrcsetAttributeOnImage( data, image, writer ) {\n\t\t// Srcset attribute for responsive images support.\n\t\tlet maxWidth = 0;\n\n\t\tconst srcsetAttribute = Object.keys( data )\n\t\t\t// Filter out keys that are not integers.\n\t\t\t.filter( key => {\n\t\t\t\tconst width = parseInt( key, 10 );\n\n\t\t\t\tif ( !isNaN( width ) ) {\n\t\t\t\t\tmaxWidth = Math.max( maxWidth, width );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t} )\n\n\t\t\t// Convert each key to srcset entry.\n\t\t\t.map( key => `${ data[ key ] } ${ key }w` )\n\n\t\t\t// Join all entries.\n\t\t\t.join( ', ' );\n\n\t\tif ( srcsetAttribute != '' ) {\n\t\t\twriter.setAttribute( 'srcset', {\n\t\t\t\tdata: srcsetAttribute,\n\t\t\t\twidth: maxWidth\n\t\t\t}, image );\n\t\t}\n\t}\n}\n\n// Returns `true` if non-empty `text/html` is included in the data transfer.\n//\n// @param {module:engine/view/datatransfer~DataTransfer} dataTransfer\n// @returns {Boolean}\nexport function isHtmlIncluded( dataTransfer ) {\n\treturn Array.from( dataTransfer.types ).includes( 'text/html' ) && dataTransfer.getData( 'text/html' ) !== '';\n}\n\nfunction getImagesFromChangeItem( editor, item ) {\n\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\treturn Array.from( editor.model.createRangeOn( item ) )\n\t\t.filter( value => imageUtils.isImage( value.item ) )\n\t\t.map( value => value.item );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/resizeimagecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The resize image command. Currently, it only supports the width attribute.\n *\n * @extends module:core/command~Command\n */\nexport default class ResizeImageCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( editor.model.document.selection );\n\n\t\tthis.isEnabled = !!element;\n\n\t\tif ( !element || !element.hasAttribute( 'width' ) ) {\n\t\t\tthis.value = null;\n\t\t} else {\n\t\t\tthis.value = {\n\t\t\t\twidth: element.getAttribute( 'width' ),\n\t\t\t\theight: null\n\t\t\t};\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t *\t\t// Sets the width to 50%:\n\t *\t\teditor.execute( 'resizeImage', { width: '50%' } );\n\t *\n\t *\t\t// Removes the width attribute:\n\t *\t\teditor.execute( 'resizeImage', { width: null } );\n\t *\n\t * @param {Object} options\n\t * @param {String|null} options.width The new width of the image.\n\t * @fires execute\n\t */\n\texecute( options ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageElement = imageUtils.getClosestSelectedImageElement( model.document.selection );\n\n\t\tthis.value = {\n\t\t\twidth: options.width,\n\t\t\theight: null\n\t\t};\n\n\t\tif ( imageElement ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setAttribute( 'width', options.width, imageElement );\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/imageresizeediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageUtils from '../imageutils';\nimport ResizeImageCommand from './resizeimagecommand';\n\n/**\n * The image resize editing feature.\n *\n * It adds the ability to resize each image using handles or manually by\n * {@link module:image/imageresize/imageresizebuttons~ImageResizeButtons} buttons.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageResizeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageResizeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'image', {\n\t\t\tresizeUnit: '%',\n\t\t\tresizeOptions: [ {\n\t\t\t\tname: 'resizeImage:original',\n\t\t\t\tvalue: null,\n\t\t\t\ticon: 'original'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'resizeImage:25',\n\t\t\t\tvalue: '25',\n\t\t\t\ticon: 'small'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'resizeImage:50',\n\t\t\t\tvalue: '50',\n\t\t\t\ticon: 'medium'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'resizeImage:75',\n\t\t\t\tvalue: '75',\n\t\t\t\ticon: 'large'\n\t\t\t} ]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst resizeImageCommand = new ResizeImageCommand( editor );\n\n\t\tthis._registerSchema();\n\t\tthis._registerConverters( 'imageBlock' );\n\t\tthis._registerConverters( 'imageInline' );\n\n\t\t// Register `resizeImage` command and add `imageResize` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'resizeImage', resizeImageCommand );\n\t\teditor.commands.add( 'imageResize', resizeImageCommand );\n\t}\n\n\t/**\n\t * @private\n\t */\n\t_registerSchema() {\n\t\tif ( this.editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\tthis.editor.model.schema.extend( 'imageBlock', { allowAttributes: 'width' } );\n\t\t}\n\n\t\tif ( this.editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\tthis.editor.model.schema.extend( 'imageInline', { allowAttributes: 'width' } );\n\t\t}\n\t}\n\n\t/**\n\t * Registers image resize converters.\n\t *\n\t * @private\n\t * @param {'imageBlock'|'imageInline'} imageType The type of the image.\n\t */\n\t_registerConverters( imageType ) {\n\t\tconst editor = this.editor;\n\n\t\t// Dedicated converter to propagate image's attribute to the img tag.\n\t\teditor.conversion.for( 'downcast' ).add( dispatcher =>\n\t\t\tdispatcher.on( `attribute:width:${ imageType }`, ( evt, data, conversionApi ) => {\n\t\t\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\t\tconst figure = conversionApi.mapper.toViewElement( data.item );\n\n\t\t\t\tif ( data.attributeNewValue !== null ) {\n\t\t\t\t\tviewWriter.setStyle( 'width', data.attributeNewValue, figure );\n\t\t\t\t\tviewWriter.addClass( 'image_resized', figure );\n\t\t\t\t} else {\n\t\t\t\t\tviewWriter.removeStyle( 'width', figure );\n\t\t\t\t\tviewWriter.removeClass( 'image_resized', figure );\n\t\t\t\t}\n\t\t\t} )\n\t\t);\n\n\t\teditor.conversion.for( 'upcast' )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: imageType === 'imageBlock' ? 'figure' : 'img',\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\twidth: /.+/\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: 'width',\n\t\t\t\t\tvalue: viewElement => viewElement.getStyle( 'width' )\n\t\t\t\t}\n\t\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/imageresizebuttons\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView, DropdownButtonView, Model, createDropdown, addListToDropdown } from 'ckeditor5/src/ui';\nimport { CKEditorError, Collection } from 'ckeditor5/src/utils';\n\nimport ImageResizeEditing from './imageresizeediting';\n\nconst RESIZE_ICONS = {\n\tsmall: icons.objectSizeSmall,\n\tmedium: icons.objectSizeMedium,\n\tlarge: icons.objectSizeLarge,\n\toriginal: icons.objectSizeFull\n};\n\n/**\n * The image resize buttons plugin.\n *\n * It adds a possibility to resize images using the toolbar dropdown or individual buttons, depending on the plugin configuration.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageResizeButtons extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageResizeEditing ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageResizeButtons';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The resize unit.\n\t\t *\n\t\t * @readonly\n\t\t * @private\n\t\t * @type {module:image/image~ImageConfig#resizeUnit}\n\t\t * @default '%'\n\t\t */\n\t\tthis._resizeUnit = editor.config.get( 'image.resizeUnit' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst options = editor.config.get( 'image.resizeOptions' );\n\t\tconst command = editor.commands.get( 'resizeImage' );\n\n\t\tthis.bind( 'isEnabled' ).to( command );\n\n\t\tfor ( const option of options ) {\n\t\t\tthis._registerImageResizeButton( option );\n\t\t}\n\n\t\tthis._registerImageResizeDropdown( options );\n\t}\n\n\t/**\n\t * A helper function that creates a standalone button component for the plugin.\n\t *\n\t * @private\n\t * @param {module:image/imageresize/imageresizebuttons~ImageResizeOption} resizeOption A model of the resize option.\n\t */\n\t_registerImageResizeButton( option ) {\n\t\tconst editor = this.editor;\n\t\tconst { name, value, icon } = option;\n\t\tconst optionValueWithUnit = value ? value + this._resizeUnit : null;\n\n\t\teditor.ui.componentFactory.add( name, locale => {\n\t\t\tconst button = new ButtonView( locale );\n\t\t\tconst command = editor.commands.get( 'resizeImage' );\n\t\t\tconst labelText = this._getOptionLabelValue( option, true );\n\n\t\t\tif ( !RESIZE_ICONS[ icon ] ) {\n\t\t\t\t/**\n\t\t\t\t * When configuring {@link module:image/image~ImageConfig#resizeOptions `config.image.resizeOptions`} for standalone\n\t\t\t\t * buttons, a valid `icon` token must be set for each option.\n\t\t\t\t *\n\t\t\t\t * See all valid options described in the\n\t\t\t\t * {@link module:image/imageresize/imageresizebuttons~ImageResizeOption plugin configuration}.\n\t\t\t\t *\n\t\t\t\t * @error imageresizebuttons-missing-icon\n\t\t\t\t * @param {module:image/imageresize/imageresizebuttons~ImageResizeOption} option Invalid image resize option.\n\t\t\t\t*/\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'imageresizebuttons-missing-icon',\n\t\t\t\t\teditor,\n\t\t\t\t\toption\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tbutton.set( {\n\t\t\t\t// Use the `label` property for a verbose description (because of ARIA).\n\t\t\t\tlabel: labelText,\n\t\t\t\ticon: RESIZE_ICONS[ icon ],\n\t\t\t\ttooltip: labelText,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\t// Bind button to the command.\n\t\t\tbutton.bind( 'isEnabled' ).to( this );\n\t\t\tbutton.bind( 'isOn' ).to( command, 'value', getIsOnButtonCallback( optionValueWithUnit ) );\n\n\t\t\tthis.listenTo( button, 'execute', () => {\n\t\t\t\teditor.execute( 'resizeImage', { width: optionValueWithUnit } );\n\t\t\t} );\n\n\t\t\treturn button;\n\t\t} );\n\t}\n\n\t/**\n\t * A helper function that creates a dropdown component for the plugin containing all the resize options defined in\n\t * the editor configuration.\n\t *\n\t * @private\n\t * @param {Array.<module:image/imageresize/imageresizebuttons~ImageResizeOption>} options An array of configured options.\n\t */\n\t_registerImageResizeDropdown( options ) {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst originalSizeOption = options.find( option => !option.value );\n\n\t\tconst componentCreator = locale => {\n\t\t\tconst command = editor.commands.get( 'resizeImage' );\n\t\t\tconst dropdownView = createDropdown( locale, DropdownButtonView );\n\t\t\tconst dropdownButton = dropdownView.buttonView;\n\n\t\t\tdropdownButton.set( {\n\t\t\t\ttooltip: t( 'Resize image' ),\n\t\t\t\tcommandValue: originalSizeOption.value,\n\t\t\t\ticon: RESIZE_ICONS.medium,\n\t\t\t\tisToggleable: true,\n\t\t\t\tlabel: this._getOptionLabelValue( originalSizeOption ),\n\t\t\t\twithText: true,\n\t\t\t\tclass: 'ck-resize-image-button'\n\t\t\t} );\n\n\t\t\tdropdownButton.bind( 'label' ).to( command, 'value', commandValue => {\n\t\t\t\tif ( commandValue && commandValue.width ) {\n\t\t\t\t\treturn commandValue.width;\n\t\t\t\t} else {\n\t\t\t\t\treturn this._getOptionLabelValue( originalSizeOption );\n\t\t\t\t}\n\t\t\t} );\n\t\t\tdropdownView.bind( 'isOn' ).to( command );\n\t\t\tdropdownView.bind( 'isEnabled' ).to( this );\n\n\t\t\taddListToDropdown( dropdownView, this._getResizeDropdownListItemDefinitions( options, command ) );\n\n\t\t\tdropdownView.listView.ariaLabel = t( 'Image resize list' );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\t\teditor.execute( evt.source.commandName, { width: evt.source.commandValue } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t};\n\n\t\t// Register `resizeImage` dropdown and add `imageResize` dropdown as an alias for backward compatibility.\n\t\teditor.ui.componentFactory.add( 'resizeImage', componentCreator );\n\t\teditor.ui.componentFactory.add( 'imageResize', componentCreator );\n\t}\n\n\t/**\n\t * A helper function for creating an option label value string.\n\t *\n\t * @private\n\t * @param {module:image/imageresize/imageresizebuttons~ImageResizeOption} option A resize option object.\n\t * @param {Boolean} [forTooltip] An optional flag for creating a tooltip label.\n\t * @returns {String} A user-defined label combined from the numeric value and the resize unit or the default label\n\t * for reset options (`Original`).\n\t */\n\t_getOptionLabelValue( option, forTooltip ) {\n\t\tconst t = this.editor.t;\n\n\t\tif ( option.label ) {\n\t\t\treturn option.label;\n\t\t} else if ( forTooltip ) {\n\t\t\tif ( option.value ) {\n\t\t\t\treturn t( 'Resize image to %0', option.value + this._resizeUnit );\n\t\t\t} else {\n\t\t\t\treturn t( 'Resize image to the original size' );\n\t\t\t}\n\t\t} else {\n\t\t\tif ( option.value ) {\n\t\t\t\treturn option.value + this._resizeUnit;\n\t\t\t} else {\n\t\t\t\treturn t( 'Original' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * A helper function that parses the resize options and returns list item definitions ready for use in the dropdown.\n\t *\n\t * @private\n\t * @param {Array.<module:image/imageresize/imageresizebuttons~ImageResizeOption>} options The resize options.\n\t * @param {module:image/imageresize/resizeimagecommand~ResizeImageCommand} command The resize image command.\n\t * @returns {Iterable.<module:ui/dropdown/utils~ListDropdownItemDefinition>} Dropdown item definitions.\n\t */\n\t_getResizeDropdownListItemDefinitions( options, command ) {\n\t\tconst itemDefinitions = new Collection();\n\n\t\toptions.map( option => {\n\t\t\tconst optionValueWithUnit = option.value ? option.value + this._resizeUnit : null;\n\t\t\tconst definition = {\n\t\t\t\ttype: 'button',\n\t\t\t\tmodel: new Model( {\n\t\t\t\t\tcommandName: 'resizeImage',\n\t\t\t\t\tcommandValue: optionValueWithUnit,\n\t\t\t\t\tlabel: this._getOptionLabelValue( option ),\n\t\t\t\t\twithText: true,\n\t\t\t\t\ticon: null\n\t\t\t\t} )\n\t\t\t};\n\n\t\t\tdefinition.model.bind( 'isOn' ).to( command, 'value', getIsOnButtonCallback( optionValueWithUnit ) );\n\n\t\t\titemDefinitions.add( definition );\n\t\t} );\n\n\t\treturn itemDefinitions;\n\t}\n}\n\n// A helper function for setting the `isOn` state of buttons in value bindings.\nfunction getIsOnButtonCallback( value ) {\n\treturn commandValue => {\n\t\tif ( value === null && commandValue === value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\treturn commandValue && commandValue.width === value;\n\t};\n}\n\n/**\n * The image resize option used in the {@link module:image/image~ImageConfig#resizeOptions image resize configuration}.\n *\n * @typedef {Object} module:image/imageresize/imageresizebuttons~ImageResizeOption\n * @property {String} name The name of the UI component that changes the image size.\n * * If you configure the feature using individual resize buttons, you can refer to this name in the\n * {@link module:image/image~ImageConfig#toolbar image toolbar configuration}.\n * * If you configure the feature using the resize dropdown, this name will be used for a list item in the dropdown.\n * @property {String} value The value of the resize option without the unit\n * ({@link module:image/image~ImageConfig#resizeUnit configured separately}). `null` resets an image to its original size.\n * @property {String} [icon] An icon used by an individual resize button (see the `name` property to learn more).\n * Available icons are: `'small'`, `'medium'`, `'large'`, `'original'`.\n * @property {String} [label] An option label displayed in the dropdown or, if the feature is configured using\n * individual buttons, a {@link module:ui/button/buttonview~ButtonView#tooltip} and an ARIA attribute of a button.\n * If not specified, the label is generated automatically based on the `value` option and the\n * {@link module:image/image~ImageConfig#resizeUnit `config.image.resizeUnit`}.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/imageresizehandles\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { WidgetResize } from 'ckeditor5/src/widget';\n\nimport ImageLoadObserver from '../image/imageloadobserver';\n\nconst RESIZABLE_IMAGES_CSS_SELECTOR =\n\t'figure.image.ck-widget > img,' +\n\t'figure.image.ck-widget > picture > img,' +\n\t'figure.image.ck-widget > a > img,' +\n\t'figure.image.ck-widget > a > picture > img,' +\n\t'span.image-inline.ck-widget > img,' +\n\t'span.image-inline.ck-widget > picture > img';\n\nconst IMAGE_WIDGETS_CLASSES_MATCH_REGEXP = /(image|image-inline)/;\n\nconst RESIZED_IMAGE_CLASS = 'image_resized';\n\n/**\n * The image resize by handles feature.\n *\n * It adds the ability to resize each image using handles or manually by\n * {@link module:image/imageresize/imageresizebuttons~ImageResizeButtons} buttons.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageResizeHandles extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ WidgetResize ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageResizeHandles';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst command = this.editor.commands.get( 'resizeImage' );\n\t\tthis.bind( 'isEnabled' ).to( command );\n\n\t\tthis._setupResizerCreator();\n\t}\n\n\t/**\n\t * Attaches the listeners responsible for creating a resizer for each image, except for images inside the HTML embed preview.\n\t *\n\t * @private\n\t */\n\t_setupResizerCreator() {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\teditingView.addObserver( ImageLoadObserver );\n\n\t\tthis.listenTo( editingView.document, 'imageLoaded', ( evt, domEvent ) => {\n\t\t\t// The resizer must be attached only to images loaded by the `ImageInsert`, `ImageUpload` or `LinkImage` plugins.\n\t\t\tif ( !domEvent.target.matches( RESIZABLE_IMAGES_CSS_SELECTOR ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst domConverter = editor.editing.view.domConverter;\n\t\t\tconst imageView = domConverter.domToView( domEvent.target );\n\t\t\tconst widgetView = imageView.findAncestor( { classes: IMAGE_WIDGETS_CLASSES_MATCH_REGEXP } );\n\t\t\tlet resizer = this.editor.plugins.get( WidgetResize ).getResizerByViewElement( widgetView );\n\n\t\t\tif ( resizer ) {\n\t\t\t\t// There are rare cases when the image will be triggered multiple times for the same widget, e.g. when\n\t\t\t\t// the image's source was changed after upload (https://github.com/ckeditor/ckeditor5/pull/8108#issuecomment-708302992).\n\t\t\t\tresizer.redraw();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst mapper = editor.editing.mapper;\n\t\t\tconst imageModel = mapper.toModelElement( widgetView );\n\n\t\t\tresizer = editor.plugins\n\t\t\t\t.get( WidgetResize )\n\t\t\t\t.attachTo( {\n\t\t\t\t\tunit: editor.config.get( 'image.resizeUnit' ),\n\n\t\t\t\t\tmodelElement: imageModel,\n\t\t\t\t\tviewElement: widgetView,\n\t\t\t\t\teditor,\n\n\t\t\t\t\tgetHandleHost( domWidgetElement ) {\n\t\t\t\t\t\treturn domWidgetElement.querySelector( 'img' );\n\t\t\t\t\t},\n\t\t\t\t\tgetResizeHost() {\n\t\t\t\t\t\t// Return the model image element parent to avoid setting an inline element (<a>/<span>) as a resize host.\n\t\t\t\t\t\treturn domConverter.mapViewToDom( mapper.toViewElement( imageModel.parent ) );\n\t\t\t\t\t},\n\t\t\t\t\t// TODO consider other positions.\n\t\t\t\t\tisCentered() {\n\t\t\t\t\t\tconst imageStyle = imageModel.getAttribute( 'imageStyle' );\n\n\t\t\t\t\t\treturn !imageStyle || imageStyle == 'block' || imageStyle == 'alignCenter';\n\t\t\t\t\t},\n\n\t\t\t\t\tonCommit( newValue ) {\n\t\t\t\t\t\t// Get rid of the CSS class in case the command execution that follows is unsuccessful\n\t\t\t\t\t\t// (e.g. Track Changes can override it and the new dimensions will not apply). Otherwise,\n\t\t\t\t\t\t// the presence of the class and the absence of the width style will cause it to take 100%\n\t\t\t\t\t\t// of the horizontal space.\n\t\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\t\twriter.removeClass( RESIZED_IMAGE_CLASS, widgetView );\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t\teditor.execute( 'resizeImage', { width: newValue } );\n\t\t\t\t\t}\n\t\t\t\t} );\n\n\t\t\tresizer.on( 'updateSize', () => {\n\t\t\t\tif ( !widgetView.hasClass( RESIZED_IMAGE_CLASS ) ) {\n\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\twriter.addClass( RESIZED_IMAGE_CLASS, widgetView );\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tresizer.bind( 'isEnabled' ).to( this );\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageresize.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/utils\n */\n\nimport { toMap } from 'ckeditor5/src/utils';\n\n/**\n * Helper class that ties together all {@link module:link/link~LinkDecoratorAutomaticDefinition} and provides\n * the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement downcast dispatchers} for them.\n */\nexport default class AutomaticDecorators {\n\tconstructor() {\n\t\t/**\n\t\t * Stores the definition of {@link module:link/link~LinkDecoratorAutomaticDefinition automatic decorators}.\n\t\t * This data is used as a source for a downcast dispatcher to create a proper conversion to output data.\n\t\t *\n\t\t * @private\n\t\t * @type {Set}\n\t\t */\n\t\tthis._definitions = new Set();\n\t}\n\n\t/**\n\t * Gives information about the number of decorators stored in the {@link module:link/utils~AutomaticDecorators} instance.\n\t *\n\t * @readonly\n\t * @protected\n\t * @type {Number}\n\t */\n\tget length() {\n\t\treturn this._definitions.size;\n\t}\n\n\t/**\n\t * Adds automatic decorator objects or an array with them to be used during downcasting.\n\t *\n\t * @param {module:link/link~LinkDecoratorAutomaticDefinition|Array.<module:link/link~LinkDecoratorAutomaticDefinition>} item\n\t * A configuration object of automatic rules for decorating links. It might also be an array of such objects.\n\t */\n\tadd( item ) {\n\t\tif ( Array.isArray( item ) ) {\n\t\t\titem.forEach( item => this._definitions.add( item ) );\n\t\t} else {\n\t\t\tthis._definitions.add( item );\n\t\t}\n\t}\n\n\t/**\n\t * Provides the conversion helper used in the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add} method.\n\t *\n\t * @returns {Function} A dispatcher function used as conversion helper\n\t * in {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add}.\n\t */\n\tgetDispatcher() {\n\t\treturn dispatcher => {\n\t\t\tdispatcher.on( 'attribute:linkHref', ( evt, data, conversionApi ) => {\n\t\t\t\t// There is only test as this behavior decorates links and\n\t\t\t\t// it is run before dispatcher which actually consumes this node.\n\t\t\t\t// This allows on writing own dispatcher with highest priority,\n\t\t\t\t// which blocks both native converter and this additional decoration.\n\t\t\t\tif ( !conversionApi.consumable.test( data.item, 'attribute:linkHref' ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Automatic decorators for block links are handled e.g. in LinkImageEditing.\n\t\t\t\tif ( !( data.item.is( 'selection' ) || conversionApi.schema.isInline( data.item ) ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\t\t\tfor ( const item of this._definitions ) {\n\t\t\t\t\tconst viewElement = viewWriter.createAttributeElement( 'a', item.attributes, {\n\t\t\t\t\t\tpriority: 5\n\t\t\t\t\t} );\n\n\t\t\t\t\tif ( item.classes ) {\n\t\t\t\t\t\tviewWriter.addClass( item.classes, viewElement );\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( const key in item.styles ) {\n\t\t\t\t\t\tviewWriter.setStyle( key, item.styles[ key ], viewElement );\n\t\t\t\t\t}\n\n\t\t\t\t\tviewWriter.setCustomProperty( 'link', true, viewElement );\n\t\t\t\t\tif ( item.callback( data.attributeNewValue ) ) {\n\t\t\t\t\t\tif ( data.item.is( 'selection' ) ) {\n\t\t\t\t\t\t\tviewWriter.wrap( viewSelection.getFirstRange(), viewElement );\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tviewWriter.wrap( conversionApi.mapper.toViewRange( data.range ), viewElement );\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tviewWriter.unwrap( conversionApi.mapper.toViewRange( data.range ), viewElement );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}, { priority: 'high' } );\n\t\t};\n\t}\n\n\t/**\n\t * Provides the conversion helper used in the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add} method\n\t * when linking images.\n\t *\n\t * @returns {Function} A dispatcher function used as conversion helper\n\t * in {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add}.\n\t */\n\tgetDispatcherForLinkedImage() {\n\t\treturn dispatcher => {\n\t\t\tdispatcher.on( 'attribute:linkHref:imageBlock', ( evt, data, { writer, mapper } ) => {\n\t\t\t\tconst viewFigure = mapper.toViewElement( data.item );\n\t\t\t\tconst linkInImage = Array.from( viewFigure.getChildren() ).find( child => child.name === 'a' );\n\n\t\t\t\tfor ( const item of this._definitions ) {\n\t\t\t\t\tconst attributes = toMap( item.attributes );\n\n\t\t\t\t\tif ( item.callback( data.attributeNewValue ) ) {\n\t\t\t\t\t\tfor ( const [ key, val ] of attributes ) {\n\t\t\t\t\t\t\t// Left for backward compatibility. Since v30 decorator should\n\t\t\t\t\t\t\t// accept `classes` and `styles` separately from `attributes`.\n\t\t\t\t\t\t\tif ( key === 'class' ) {\n\t\t\t\t\t\t\t\twriter.addClass( val, linkInImage );\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\twriter.setAttribute( key, val, linkInImage );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( item.classes ) {\n\t\t\t\t\t\t\twriter.addClass( item.classes, linkInImage );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( const key in item.styles ) {\n\t\t\t\t\t\t\twriter.setStyle( key, item.styles[ key ], linkInImage );\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tfor ( const [ key, val ] of attributes ) {\n\t\t\t\t\t\t\tif ( key === 'class' ) {\n\t\t\t\t\t\t\t\twriter.removeClass( val, linkInImage );\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\twriter.removeAttribute( key, linkInImage );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( item.classes ) {\n\t\t\t\t\t\t\twriter.removeClass( item.classes, linkInImage );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( const key in item.styles ) {\n\t\t\t\t\t\t\twriter.removeStyle( key, linkInImage );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t};\n\t}\n}\n","import baseSlice from './_baseSlice.js';\n\n/**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\nfunction castSlice(array, start, end) {\n  var length = array.length;\n  end = end === undefined ? length : end;\n  return (!start && end >= length) ? array : baseSlice(array, start, end);\n}\n\nexport default castSlice;\n","/** Used to compose unicode character classes. */\nvar rsAstralRange = '\\\\ud800-\\\\udfff',\n    rsComboMarksRange = '\\\\u0300-\\\\u036f',\n    reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n    rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n    rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n    rsVarRange = '\\\\ufe0e\\\\ufe0f';\n\n/** Used to compose unicode capture groups. */\nvar rsZWJ = '\\\\u200d';\n\n/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\nvar reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');\n\n/**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\nfunction hasUnicode(string) {\n  return reHasUnicode.test(string);\n}\n\nexport default hasUnicode;\n","/**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction asciiToArray(string) {\n  return string.split('');\n}\n\nexport default asciiToArray;\n","/** Used to compose unicode character classes. */\nvar rsAstralRange = '\\\\ud800-\\\\udfff',\n    rsComboMarksRange = '\\\\u0300-\\\\u036f',\n    reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n    rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n    rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n    rsVarRange = '\\\\ufe0e\\\\ufe0f';\n\n/** Used to compose unicode capture groups. */\nvar rsAstral = '[' + rsAstralRange + ']',\n    rsCombo = '[' + rsComboRange + ']',\n    rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n    rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n    rsNonAstral = '[^' + rsAstralRange + ']',\n    rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n    rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n    rsZWJ = '\\\\u200d';\n\n/** Used to compose unicode regexes. */\nvar reOptMod = rsModifier + '?',\n    rsOptVar = '[' + rsVarRange + ']?',\n    rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n    rsSeq = rsOptVar + reOptMod + rsOptJoin,\n    rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\nvar reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n/**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction unicodeToArray(string) {\n  return string.match(reUnicode) || [];\n}\n\nexport default unicodeToArray;\n","import asciiToArray from './_asciiToArray.js';\nimport hasUnicode from './_hasUnicode.js';\nimport unicodeToArray from './_unicodeToArray.js';\n\n/**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction stringToArray(string) {\n  return hasUnicode(string)\n    ? unicodeToArray(string)\n    : asciiToArray(string);\n}\n\nexport default stringToArray;\n","import createCaseFirst from './_createCaseFirst.js';\n\n/**\n * Converts the first character of `string` to upper case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.upperFirst('fred');\n * // => 'Fred'\n *\n * _.upperFirst('FRED');\n * // => 'FRED'\n */\nvar upperFirst = createCaseFirst('toUpperCase');\n\nexport default upperFirst;\n","import castSlice from './_castSlice.js';\nimport hasUnicode from './_hasUnicode.js';\nimport stringToArray from './_stringToArray.js';\nimport toString from './toString.js';\n\n/**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\nfunction createCaseFirst(methodName) {\n  return function(string) {\n    string = toString(string);\n\n    var strSymbols = hasUnicode(string)\n      ? stringToArray(string)\n      : undefined;\n\n    var chr = strSymbols\n      ? strSymbols[0]\n      : string.charAt(0);\n\n    var trailing = strSymbols\n      ? castSlice(strSymbols, 1).join('')\n      : string.slice(1);\n\n    return chr[methodName]() + trailing;\n  };\n}\n\nexport default createCaseFirst;\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/utils\n */\n\n/* global window */\n\nimport { upperFirst } from 'lodash-es';\n\nconst ATTRIBUTE_WHITESPACES = /[\\u0000-\\u0020\\u00A0\\u1680\\u180E\\u2000-\\u2029\\u205f\\u3000]/g; // eslint-disable-line no-control-regex\nconst SAFE_URL = /^(?:(?:https?|ftps?|mailto):|[^a-z]|[a-z+.-]+(?:[^a-z+.:-]|$))/i;\n\n// Simplified email test - should be run over previously found URL.\nconst EMAIL_REG_EXP = /^[\\S]+@((?![-_])(?:[-\\w\\u00a1-\\uffff]{0,63}[^-_]\\.))+(?:[a-z\\u00a1-\\uffff]{2,})$/i;\n\n// The regex checks for the protocol syntax ('xxxx://' or 'xxxx:')\n// or non-word characters at the beginning of the link ('/', '#' etc.).\nconst PROTOCOL_REG_EXP = /^((\\w+:(\\/{2,})?)|(\\W))/i;\n\n/**\n * A keystroke used by the {@link module:link/linkui~LinkUI link UI feature}.\n */\nexport const LINK_KEYSTROKE = 'Ctrl+K';\n\n/**\n * Returns `true` if a given view node is the link element.\n *\n * @param {module:engine/view/node~Node} node\n * @returns {Boolean}\n */\nexport function isLinkElement( node ) {\n\treturn node.is( 'attributeElement' ) && !!node.getCustomProperty( 'link' );\n}\n\n/**\n * Creates a link {@link module:engine/view/attributeelement~AttributeElement} with the provided `href` attribute.\n *\n * @param {String} href\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\n * @returns {module:engine/view/attributeelement~AttributeElement}\n */\nexport function createLinkElement( href, { writer } ) {\n\t// Priority 5 - https://github.com/ckeditor/ckeditor5-link/issues/121.\n\tconst linkElement = writer.createAttributeElement( 'a', { href }, { priority: 5 } );\n\twriter.setCustomProperty( 'link', true, linkElement );\n\n\treturn linkElement;\n}\n\n/**\n * Returns a safe URL based on a given value.\n *\n * A URL is considered safe if it is safe for the user (does not contain any malicious code).\n *\n * If a URL is considered unsafe, a simple `\"#\"` is returned.\n *\n * @protected\n * @param {*} url\n * @returns {String} Safe URL.\n */\nexport function ensureSafeUrl( url ) {\n\turl = String( url );\n\n\treturn isSafeUrl( url ) ? url : '#';\n}\n\n// Checks whether the given URL is safe for the user (does not contain any malicious code).\n//\n// @param {String} url URL to check.\nfunction isSafeUrl( url ) {\n\tconst normalizedUrl = url.replace( ATTRIBUTE_WHITESPACES, '' );\n\n\treturn normalizedUrl.match( SAFE_URL );\n}\n\n/**\n * Returns the {@link module:link/link~LinkConfig#decorators `config.link.decorators`} configuration processed\n * to respect the locale of the editor, i.e. to display the {@link module:link/link~LinkDecoratorManualDefinition label}\n * in the correct language.\n *\n * **Note**: Only the few most commonly used labels are translated automatically. Other labels should be manually\n * translated in the {@link module:link/link~LinkConfig#decorators `config.link.decorators`} configuration.\n *\n * @param {module:utils/locale~Locale#t} t shorthand for {@link module:utils/locale~Locale#t Locale#t}\n * @param {Array.<module:link/link~LinkDecoratorDefinition>} The decorator reference\n * where the label values should be localized.\n * @returns {Array.<module:link/link~LinkDecoratorDefinition>}\n */\nexport function getLocalizedDecorators( t, decorators ) {\n\tconst localizedDecoratorsLabels = {\n\t\t'Open in a new tab': t( 'Open in a new tab' ),\n\t\t'Downloadable': t( 'Downloadable' )\n\t};\n\n\tdecorators.forEach( decorator => {\n\t\tif ( decorator.label && localizedDecoratorsLabels[ decorator.label ] ) {\n\t\t\tdecorator.label = localizedDecoratorsLabels[ decorator.label ];\n\t\t}\n\t\treturn decorator;\n\t} );\n\n\treturn decorators;\n}\n\n/**\n * Converts an object with defined decorators to a normalized array of decorators. The `id` key is added for each decorator and\n * is used as the attribute's name in the model.\n *\n * @param {Object.<String, module:link/link~LinkDecoratorDefinition>} decorators\n * @returns {Array.<module:link/link~LinkDecoratorDefinition>}\n */\nexport function normalizeDecorators( decorators ) {\n\tconst retArray = [];\n\n\tif ( decorators ) {\n\t\tfor ( const [ key, value ] of Object.entries( decorators ) ) {\n\t\t\tconst decorator = Object.assign(\n\t\t\t\t{},\n\t\t\t\tvalue,\n\t\t\t\t{ id: `link${ upperFirst( key ) }` }\n\t\t\t);\n\t\t\tretArray.push( decorator );\n\t\t}\n\t}\n\n\treturn retArray;\n}\n\n/**\n * Returns `true` if the specified `element` can be linked (the element allows the `linkHref` attribute).\n *\n * @params {module:engine/model/element~Element|null} element\n * @params {module:engine/model/schema~Schema} schema\n * @returns {Boolean}\n */\nexport function isLinkableElement( element, schema ) {\n\tif ( !element ) {\n\t\treturn false;\n\t}\n\n\treturn schema.checkAttribute( element.name, 'linkHref' );\n}\n\n/**\n * Returns `true` if the specified `value` is an email.\n *\n * @params {String} value\n * @returns {Boolean}\n */\nexport function isEmail( value ) {\n\treturn EMAIL_REG_EXP.test( value );\n}\n\n/**\n * Adds the protocol prefix to the specified `link` when:\n *\n * * it does not contain it already, and there is a {@link module:link/link~LinkConfig#defaultProtocol `defaultProtocol` }\n * configuration value provided,\n * * or the link is an email address.\n *\n *\n * @params {String} link\n * @params {String} defaultProtocol\n * @returns {String}\n */\nexport function addLinkProtocolIfApplicable( link, defaultProtocol ) {\n\tconst protocol = isEmail( link ) ? 'mailto:' : defaultProtocol;\n\tconst isProtocolNeeded = !!protocol && !linkHasProtocol( link );\n\n\treturn link && isProtocolNeeded ? protocol + link : link;\n}\n\n/**\n * Checks if protocol is already included in the link.\n *\n * @param {String} link\n * @returns {Boolean}\n */\nexport function linkHasProtocol( link ) {\n\treturn PROTOCOL_REG_EXP.test( link );\n}\n\n/**\n * Opens the link in a new browser tab.\n *\n * @param {String} link\n */\nexport function openLink( link ) {\n\twindow.open( link, '_blank', 'noopener' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/linkcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { findAttributeRange } from 'ckeditor5/src/typing';\nimport { Collection, first, toMap } from 'ckeditor5/src/utils';\n\nimport AutomaticDecorators from './utils/automaticdecorators';\nimport { isLinkableElement } from './utils';\n\n/**\n * The link command. It is used by the {@link module:link/link~Link link feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class LinkCommand extends Command {\n\t/**\n\t * The value of the `'linkHref'` attribute if the start of the selection is located in a node with this attribute.\n\t *\n\t * @observable\n\t * @readonly\n\t * @member {Object|undefined} #value\n\t */\n\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A collection of {@link module:link/utils~ManualDecorator manual decorators}\n\t\t * corresponding to the {@link module:link/link~LinkConfig#decorators decorator configuration}.\n\t\t *\n\t\t * You can consider it a model with states of manual decorators added to the currently selected link.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:utils/collection~Collection}\n\t\t */\n\t\tthis.manualDecorators = new Collection();\n\n\t\t/**\n\t\t * An instance of the helper that ties together all {@link module:link/link~LinkDecoratorAutomaticDefinition}\n\t\t * that are used by the {@glink features/link link} and the {@glink features/images/images-linking linking images} features.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:link/utils~AutomaticDecorators}\n\t\t */\n\t\tthis.automaticDecorators = new AutomaticDecorators();\n\t}\n\n\t/**\n\t * Synchronizes the state of {@link #manualDecorators} with the currently present elements in the model.\n\t */\n\trestoreManualDecoratorStates() {\n\t\tfor ( const manualDecorator of this.manualDecorators ) {\n\t\t\tmanualDecorator.value = this._getDecoratorStateFromModel( manualDecorator.id );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement() || first( selection.getSelectedBlocks() );\n\n\t\t// A check for any integration that allows linking elements (e.g. `LinkImage`).\n\t\t// Currently the selection reads attributes from text nodes only. See #7429 and #7465.\n\t\tif ( isLinkableElement( selectedElement, model.schema ) ) {\n\t\t\tthis.value = selectedElement.getAttribute( 'linkHref' );\n\t\t\tthis.isEnabled = model.schema.checkAttribute( selectedElement, 'linkHref' );\n\t\t} else {\n\t\t\tthis.value = selection.getAttribute( 'linkHref' );\n\t\t\tthis.isEnabled = model.schema.checkAttributeInSelection( selection, 'linkHref' );\n\t\t}\n\n\t\tfor ( const manualDecorator of this.manualDecorators ) {\n\t\t\tmanualDecorator.value = this._getDecoratorStateFromModel( manualDecorator.id );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is non-collapsed, the `linkHref` attribute will be applied to nodes inside the selection, but only to\n\t * those nodes where the `linkHref` attribute is allowed (disallowed nodes will be omitted).\n\t *\n\t * When the selection is collapsed and is not inside the text with the `linkHref` attribute, a\n\t * new {@link module:engine/model/text~Text text node} with the `linkHref` attribute will be inserted in place of the caret, but\n\t * only if such element is allowed in this place. The `_data` of the inserted text will equal the `href` parameter.\n\t * The selection will be updated to wrap the just inserted text node.\n\t *\n\t * When the selection is collapsed and inside the text with the `linkHref` attribute, the attribute value will be updated.\n\t *\n\t * # Decorators and model attribute management\n\t *\n\t * There is an optional argument to this command that applies or removes model\n\t * {@glink framework/guides/architecture/editing-engine#text-attributes text attributes} brought by\n\t * {@link module:link/utils~ManualDecorator manual link decorators}.\n\t *\n\t * Text attribute names in the model correspond to the entries in the {@link module:link/link~LinkConfig#decorators configuration}.\n\t * For every decorator configured, a model text attribute exists with the \"link\" prefix. For example, a `'linkMyDecorator'` attribute\n\t * corresponds to `'myDecorator'` in the configuration.\n\t *\n\t * To learn more about link decorators, check out the {@link module:link/link~LinkConfig#decorators `config.link.decorators`}\n\t * documentation.\n\t *\n\t * Here is how to manage decorator attributes with the link command:\n\t *\n\t *\t\tconst linkCommand = editor.commands.get( 'link' );\n\t *\n\t *\t\t// Adding a new decorator attribute.\n\t *\t\tlinkCommand.execute( 'http://example.com', {\n\t *\t\t\tlinkIsExternal: true\n\t *\t\t} );\n\t *\n\t *\t\t// Removing a decorator attribute from the selection.\n\t *\t\tlinkCommand.execute( 'http://example.com', {\n\t *\t\t\tlinkIsExternal: false\n\t *\t\t} );\n\t *\n\t *\t\t// Adding multiple decorator attributes at the same time.\n\t *\t\tlinkCommand.execute( 'http://example.com', {\n\t *\t\t\tlinkIsExternal: true,\n\t *\t\t\tlinkIsDownloadable: true,\n\t *\t\t} );\n\t *\n\t *\t\t// Removing and adding decorator attributes at the same time.\n\t *\t\tlinkCommand.execute( 'http://example.com', {\n\t *\t\t\tlinkIsExternal: false,\n\t *\t\t\tlinkFoo: true,\n\t *\t\t\tlinkIsDownloadable: false,\n\t *\t\t} );\n\t *\n\t * **Note**: If the decorator attribute name is not specified, its state remains untouched.\n\t *\n\t * **Note**: {@link module:link/unlinkcommand~UnlinkCommand#execute `UnlinkCommand#execute()`} removes all\n\t * decorator attributes.\n\t *\n\t * @fires execute\n\t * @param {String} href Link destination.\n\t * @param {Object} [manualDecoratorIds={}] The information about manual decorator attributes to be applied or removed upon execution.\n\t */\n\texecute( href, manualDecoratorIds = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\t// Stores information about manual decorators to turn them on/off when command is applied.\n\t\tconst truthyManualDecorators = [];\n\t\tconst falsyManualDecorators = [];\n\n\t\tfor ( const name in manualDecoratorIds ) {\n\t\t\tif ( manualDecoratorIds[ name ] ) {\n\t\t\t\ttruthyManualDecorators.push( name );\n\t\t\t} else {\n\t\t\t\tfalsyManualDecorators.push( name );\n\t\t\t}\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\t// If selection is collapsed then update selected link or insert new one at the place of caret.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tconst position = selection.getFirstPosition();\n\n\t\t\t\t// When selection is inside text with `linkHref` attribute.\n\t\t\t\tif ( selection.hasAttribute( 'linkHref' ) ) {\n\t\t\t\t\t// Then update `linkHref` value.\n\t\t\t\t\tconst linkRange = findAttributeRange( position, 'linkHref', selection.getAttribute( 'linkHref' ), model );\n\n\t\t\t\t\twriter.setAttribute( 'linkHref', href, linkRange );\n\n\t\t\t\t\ttruthyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.setAttribute( item, true, linkRange );\n\t\t\t\t\t} );\n\n\t\t\t\t\tfalsyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.removeAttribute( item, linkRange );\n\t\t\t\t\t} );\n\n\t\t\t\t\t// Put the selection at the end of the updated link.\n\t\t\t\t\twriter.setSelection( writer.createPositionAfter( linkRange.end.nodeBefore ) );\n\t\t\t\t}\n\t\t\t\t// If not then insert text node with `linkHref` attribute in place of caret.\n\t\t\t\t// However, since selection is collapsed, attribute value will be used as data for text node.\n\t\t\t\t// So, if `href` is empty, do not create text node.\n\t\t\t\telse if ( href !== '' ) {\n\t\t\t\t\tconst attributes = toMap( selection.getAttributes() );\n\n\t\t\t\t\tattributes.set( 'linkHref', href );\n\n\t\t\t\t\ttruthyManualDecorators.forEach( item => {\n\t\t\t\t\t\tattributes.set( item, true );\n\t\t\t\t\t} );\n\n\t\t\t\t\tconst { end: positionAfter } = model.insertContent( writer.createText( href, attributes ), position );\n\n\t\t\t\t\t// Put the selection at the end of the inserted link.\n\t\t\t\t\t// Using end of range returned from insertContent in case nodes with the same attributes got merged.\n\t\t\t\t\twriter.setSelection( positionAfter );\n\t\t\t\t}\n\n\t\t\t\t// Remove the `linkHref` attribute and all link decorators from the selection.\n\t\t\t\t// It stops adding a new content into the link element.\n\t\t\t\t[ 'linkHref', ...truthyManualDecorators, ...falsyManualDecorators ].forEach( item => {\n\t\t\t\t\twriter.removeSelectionAttribute( item );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\t// If selection has non-collapsed ranges, we change attribute on nodes inside those ranges\n\t\t\t\t// omitting nodes where the `linkHref` attribute is disallowed.\n\t\t\t\tconst ranges = model.schema.getValidRanges( selection.getRanges(), 'linkHref' );\n\n\t\t\t\t// But for the first, check whether the `linkHref` attribute is allowed on selected blocks (e.g. the \"image\" element).\n\t\t\t\tconst allowedRanges = [];\n\n\t\t\t\tfor ( const element of selection.getSelectedBlocks() ) {\n\t\t\t\t\tif ( model.schema.checkAttribute( element, 'linkHref' ) ) {\n\t\t\t\t\t\tallowedRanges.push( writer.createRangeOn( element ) );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Ranges that accept the `linkHref` attribute. Since we will iterate over `allowedRanges`, let's clone it.\n\t\t\t\tconst rangesToUpdate = allowedRanges.slice();\n\n\t\t\t\t// For all selection ranges we want to check whether given range is inside an element that accepts the `linkHref` attribute.\n\t\t\t\t// If so, we don't want to propagate applying the attribute to its children.\n\t\t\t\tfor ( const range of ranges ) {\n\t\t\t\t\tif ( this._isRangeToUpdate( range, allowedRanges ) ) {\n\t\t\t\t\t\trangesToUpdate.push( range );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tfor ( const range of rangesToUpdate ) {\n\t\t\t\t\twriter.setAttribute( 'linkHref', href, range );\n\n\t\t\t\t\ttruthyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.setAttribute( item, true, range );\n\t\t\t\t\t} );\n\n\t\t\t\t\tfalsyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.removeAttribute( item, range );\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Provides information whether a decorator with a given name is present in the currently processed selection.\n\t *\n\t * @private\n\t * @param {String} decoratorName The name of the manual decorator used in the model\n\t * @returns {Boolean} The information whether a given decorator is currently present in the selection.\n\t */\n\t_getDecoratorStateFromModel( decoratorName ) {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t// A check for the `LinkImage` plugin. If the selection contains an element, get values from the element.\n\t\t// Currently the selection reads attributes from text nodes only. See #7429 and #7465.\n\t\tif ( isLinkableElement( selectedElement, model.schema ) ) {\n\t\t\treturn selectedElement.getAttribute( decoratorName );\n\t\t}\n\n\t\treturn selection.getAttribute( decoratorName );\n\t}\n\n\t/**\n\t * Checks whether specified `range` is inside an element that accepts the `linkHref` attribute.\n\t *\n\t * @private\n\t * @param {module:engine/view/range~Range} range A range to check.\n\t * @param {Array.<module:engine/view/range~Range>} allowedRanges An array of ranges created on elements where the attribute is accepted.\n\t * @returns {Boolean}\n\t */\n\t_isRangeToUpdate( range, allowedRanges ) {\n\t\tfor ( const allowedRange of allowedRanges ) {\n\t\t\t// A range is inside an element that will have the `linkHref` attribute. Do not modify its nodes.\n\t\t\tif ( allowedRange.containsRange( range ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/unlinkcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { findAttributeRange } from 'ckeditor5/src/typing';\n\nimport { isLinkableElement } from './utils';\n\n/**\n * The unlink command. It is used by the {@link module:link/link~Link link plugin}.\n *\n * @extends module:core/command~Command\n */\nexport default class UnlinkCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t// A check for any integration that allows linking elements (e.g. `LinkImage`).\n\t\t// Currently the selection reads attributes from text nodes only. See #7429 and #7465.\n\t\tif ( isLinkableElement( selectedElement, model.schema ) ) {\n\t\t\tthis.isEnabled = model.schema.checkAttribute( selectedElement, 'linkHref' );\n\t\t} else {\n\t\t\tthis.isEnabled = model.schema.checkAttributeInSelection( selection, 'linkHref' );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is collapsed, it removes the `linkHref` attribute from each node with the same `linkHref` attribute value.\n\t * When the selection is non-collapsed, it removes the `linkHref` attribute from each node in selected ranges.\n\t *\n\t * # Decorators\n\t *\n\t * If {@link module:link/link~LinkConfig#decorators `config.link.decorators`} is specified,\n\t * all configured decorators are removed together with the `linkHref` attribute.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst linkCommand = editor.commands.get( 'link' );\n\n\t\tmodel.change( writer => {\n\t\t\t// Get ranges to unlink.\n\t\t\tconst rangesToUnlink = selection.isCollapsed ?\n\t\t\t\t[ findAttributeRange(\n\t\t\t\t\tselection.getFirstPosition(),\n\t\t\t\t\t'linkHref',\n\t\t\t\t\tselection.getAttribute( 'linkHref' ),\n\t\t\t\t\tmodel\n\t\t\t\t) ] :\n\t\t\t\tmodel.schema.getValidRanges( selection.getRanges(), 'linkHref' );\n\n\t\t\t// Remove `linkHref` attribute from specified ranges.\n\t\t\tfor ( const range of rangesToUnlink ) {\n\t\t\t\twriter.removeAttribute( 'linkHref', range );\n\t\t\t\t// If there are registered custom attributes, then remove them during unlink.\n\t\t\t\tif ( linkCommand ) {\n\t\t\t\t\tfor ( const manualDecorator of linkCommand.manualDecorators ) {\n\t\t\t\t\t\twriter.removeAttribute( manualDecorator.id, range );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/utils\n */\n\nimport { ObservableMixin, mix } from 'ckeditor5/src/utils';\n\n/**\n * Helper class that stores manual decorators with observable {@link module:link/utils~ManualDecorator#value}\n * to support integration with the UI state. An instance of this class is a model with the state of individual manual decorators.\n * These decorators are kept as collections in {@link module:link/linkcommand~LinkCommand#manualDecorators}.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n */\nexport default class ManualDecorator {\n\t/**\n\t * Creates a new instance of {@link module:link/utils~ManualDecorator}.\n\t *\n\t * @param {Object} config\n\t * @param {String} config.id The name of the attribute used in the model that represents a given manual decorator.\n\t * For example: `'linkIsExternal'`.\n\t * @param {String} config.label The label used in the user interface to toggle the manual decorator.\n\t * @param {Object} config.attributes A set of attributes added to output data when the decorator is active for a specific link.\n\t * Attributes should keep the format of attributes defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t * @param {Boolean} [config.defaultValue] Controls whether the decorator is \"on\" by default.\n\t */\n\tconstructor( { id, label, attributes, classes, styles, defaultValue } ) {\n\t\t/**\n\t\t * An ID of a manual decorator which is the name of the attribute in the model, for example: 'linkManualDecorator0'.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.id = id;\n\n\t\t/**\n\t\t * The value of the current manual decorator. It reflects its state from the UI.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} module:link/utils~ManualDecorator#value\n\t\t */\n\t\tthis.set( 'value' );\n\n\t\t/**\n\t\t * The default value of manual decorator.\n\t\t *\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.defaultValue = defaultValue;\n\n\t\t/**\n\t\t * The label used in the user interface to toggle the manual decorator.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.label = label;\n\n\t\t/**\n\t\t * A set of attributes added to downcasted data when the decorator is activated for a specific link.\n\t\t * Attributes should be added in a form of attributes defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t\t *\n\t\t * @type {Object}\n\t\t */\n\t\tthis.attributes = attributes;\n\n\t\t/**\n\t\t * A set of classes added to downcasted data when the decorator is activated for a specific link.\n\t\t * Classes should be added in a form of classes defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t\t *\n\t\t * @type {Object}\n\t\t */\n\t\tthis.classes = classes;\n\n\t\t/**\n\t\t * A set of styles added to downcasted data when the decorator is activated for a specific link.\n\t\t * Styles should be added in a form of styles defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t\t *\n\t\t * @type {Object}\n\t\t */\n\t\tthis.styles = styles;\n\t}\n\n\t/**\n\t * Returns {@link module:engine/view/matcher~MatcherPattern} with decorator attributes.\n\t *\n\t * @protected\n\t * @returns {module:engine/view/matcher~MatcherPattern}\n\t */\n\t_createPattern() {\n\t\treturn {\n\t\t\tattributes: this.attributes,\n\t\t\tclasses: this.classes,\n\t\t\tstyles: this.styles\n\t\t};\n\t}\n}\n\nmix( ManualDecorator, ObservableMixin );\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./link.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/linkediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { MouseObserver } from 'ckeditor5/src/engine';\nimport { Input, TwoStepCaretMovement, inlineHighlight, findAttributeRange } from 'ckeditor5/src/typing';\nimport { ClipboardPipeline } from 'ckeditor5/src/clipboard';\nimport { keyCodes, env } from 'ckeditor5/src/utils';\n\nimport LinkCommand from './linkcommand';\nimport UnlinkCommand from './unlinkcommand';\nimport ManualDecorator from './utils/manualdecorator';\nimport { createLinkElement, ensureSafeUrl, getLocalizedDecorators, normalizeDecorators, openLink } from './utils';\n\nimport '../theme/link.css';\n\nconst HIGHLIGHT_CLASS = 'ck-link_selected';\nconst DECORATOR_AUTOMATIC = 'automatic';\nconst DECORATOR_MANUAL = 'manual';\nconst EXTERNAL_LINKS_REGEXP = /^(https?:)?\\/\\//;\n\n/**\n * The link engine feature.\n *\n * It introduces the `linkHref=\"url\"` attribute in the model which renders to the view as a `<a href=\"url\">` element\n * as well as `'link'` and `'unlink'` commands.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class LinkEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'LinkEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\t// Clipboard is required for handling cut and paste events while typing over the link.\n\t\treturn [ TwoStepCaretMovement, Input, ClipboardPipeline ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'link', {\n\t\t\taddTargetToExternalLinks: false\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Allow link attribute on all inline nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: 'linkHref' } );\n\n\t\teditor.conversion.for( 'dataDowncast' )\n\t\t\t.attributeToElement( { model: 'linkHref', view: createLinkElement } );\n\n\t\teditor.conversion.for( 'editingDowncast' )\n\t\t\t.attributeToElement( { model: 'linkHref', view: ( href, conversionApi ) => {\n\t\t\t\treturn createLinkElement( ensureSafeUrl( href ), conversionApi );\n\t\t\t} } );\n\n\t\teditor.conversion.for( 'upcast' )\n\t\t\t.elementToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'a',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\thref: true\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: 'linkHref',\n\t\t\t\t\tvalue: viewElement => viewElement.getAttribute( 'href' )\n\t\t\t\t}\n\t\t\t} );\n\n\t\t// Create linking commands.\n\t\teditor.commands.add( 'link', new LinkCommand( editor ) );\n\t\teditor.commands.add( 'unlink', new UnlinkCommand( editor ) );\n\n\t\tconst linkDecorators = getLocalizedDecorators( editor.t, normalizeDecorators( editor.config.get( 'link.decorators' ) ) );\n\n\t\tthis._enableAutomaticDecorators( linkDecorators.filter( item => item.mode === DECORATOR_AUTOMATIC ) );\n\t\tthis._enableManualDecorators( linkDecorators.filter( item => item.mode === DECORATOR_MANUAL ) );\n\n\t\t// Enable two-step caret movement for `linkHref` attribute.\n\t\tconst twoStepCaretMovementPlugin = editor.plugins.get( TwoStepCaretMovement );\n\t\ttwoStepCaretMovementPlugin.registerAttribute( 'linkHref' );\n\n\t\t// Setup highlight over selected link.\n\t\tinlineHighlight( editor, 'linkHref', 'a', HIGHLIGHT_CLASS );\n\n\t\t// hack to fix https://github.com/zadam/trilium/issues/3630\n\t\t// Handle link following by CTRL+click or ALT+ENTER\n\t\t// this._enableLinkOpen();\n\n\t\t// Change the attributes of the selection in certain situations after the link was inserted into the document.\n\t\tthis._enableInsertContentSelectionAttributesFixer();\n\n\t\t// Handle a click at the beginning/end of a link element.\n\t\tthis._enableClickingAfterLink();\n\n\t\t// Handle typing over the link.\n\t\tthis._enableTypingOverLink();\n\n\t\t// Handle removing the content after the link element.\n\t\tthis._handleDeleteContentAfterLink();\n\t}\n\n\t/**\n\t * Processes an array of configured {@link module:link/link~LinkDecoratorAutomaticDefinition automatic decorators}\n\t * and registers a {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher downcast dispatcher}\n\t * for each one of them. Downcast dispatchers are obtained using the\n\t * {@link module:link/utils~AutomaticDecorators#getDispatcher} method.\n\t *\n\t * **Note**: This method also activates the automatic external link decorator if enabled with\n\t * {@link module:link/link~LinkConfig#addTargetToExternalLinks `config.link.addTargetToExternalLinks`}.\n\t *\n\t * @private\n\t * @param {Array.<module:link/link~LinkDecoratorAutomaticDefinition>} automaticDecoratorDefinitions\n\t */\n\t_enableAutomaticDecorators( automaticDecoratorDefinitions ) {\n\t\tconst editor = this.editor;\n\t\t// Store automatic decorators in the command instance as we do the same with manual decorators.\n\t\t// Thanks to that, `LinkImageEditing` plugin can re-use the same definitions.\n\t\tconst command = editor.commands.get( 'link' );\n\t\tconst automaticDecorators = command.automaticDecorators;\n\n\t\t// Adds a default decorator for external links.\n\t\tif ( editor.config.get( 'link.addTargetToExternalLinks' ) ) {\n\t\t\tautomaticDecorators.add( {\n\t\t\t\tid: 'linkIsExternal',\n\t\t\t\tmode: DECORATOR_AUTOMATIC,\n\t\t\t\tcallback: url => EXTERNAL_LINKS_REGEXP.test( url ),\n\t\t\t\tattributes: {\n\t\t\t\t\ttarget: '_blank',\n\t\t\t\t\trel: 'noopener noreferrer'\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\tautomaticDecorators.add( automaticDecoratorDefinitions );\n\n\t\tif ( automaticDecorators.length ) {\n\t\t\teditor.conversion.for( 'downcast' ).add( automaticDecorators.getDispatcher() );\n\t\t}\n\t}\n\n\t/**\n\t * Processes an array of configured {@link module:link/link~LinkDecoratorManualDefinition manual decorators},\n\t * transforms them into {@link module:link/utils~ManualDecorator} instances and stores them in the\n\t * {@link module:link/linkcommand~LinkCommand#manualDecorators} collection (a model for manual decorators state).\n\t *\n\t * Also registers an {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement attribute-to-element}\n\t * converter for each manual decorator and extends the {@link module:engine/model/schema~Schema model's schema}\n\t * with adequate model attributes.\n\t *\n\t * @private\n\t * @param {Array.<module:link/link~LinkDecoratorManualDefinition>} manualDecoratorDefinitions\n\t */\n\t_enableManualDecorators( manualDecoratorDefinitions ) {\n\t\tif ( !manualDecoratorDefinitions.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst command = editor.commands.get( 'link' );\n\t\tconst manualDecorators = command.manualDecorators;\n\n\t\tmanualDecoratorDefinitions.forEach( decorator => {\n\t\t\teditor.model.schema.extend( '$text', { allowAttributes: decorator.id } );\n\n\t\t\t// Keeps reference to manual decorator to decode its name to attributes during downcast.\n\t\t\tdecorator = new ManualDecorator( decorator );\n\n\t\t\tmanualDecorators.add( decorator );\n\n\t\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\t\tmodel: decorator.id,\n\t\t\t\tview: ( manualDecoratorValue, { writer, schema }, { item } ) => {\n\t\t\t\t\t// Manual decorators for block links are handled e.g. in LinkImageEditing.\n\t\t\t\t\tif ( !( item.is( 'selection' ) || schema.isInline( item ) ) ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( manualDecoratorValue ) {\n\t\t\t\t\t\tconst element = writer.createAttributeElement( 'a', decorator.attributes, { priority: 5 } );\n\n\t\t\t\t\t\tif ( decorator.classes ) {\n\t\t\t\t\t\t\twriter.addClass( decorator.classes, element );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( const key in decorator.styles ) {\n\t\t\t\t\t\t\twriter.setStyle( key, decorator.styles[ key ], element );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\twriter.setCustomProperty( 'link', true, element );\n\n\t\t\t\t\t\treturn element;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'a',\n\t\t\t\t\t...decorator._createPattern()\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: decorator.id\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches handlers for {@link module:engine/view/document~Document#event:enter} and\n\t * {@link module:engine/view/document~Document#event:click} to enable link following.\n\t *\n\t * @private\n\t */\n\t_enableLinkOpen() {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tthis.listenTo( viewDocument, 'click', ( evt, data ) => {\n\t\t\tconst shouldOpen = env.isMac ? data.domEvent.metaKey : data.domEvent.ctrlKey;\n\n\t\t\tif ( !shouldOpen ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet clickedElement = data.domTarget;\n\n\t\t\tif ( clickedElement.tagName.toLowerCase() != 'a' ) {\n\t\t\t\tclickedElement = clickedElement.closest( 'a' );\n\t\t\t}\n\n\t\t\tif ( !clickedElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst url = clickedElement.getAttribute( 'href' );\n\n\t\t\tif ( !url ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\t\t\tdata.preventDefault();\n\n\t\t\topenLink( url );\n\t\t}, { context: '$capture' } );\n\n\t\t// Open link on Alt+Enter.\n\t\tthis.listenTo( viewDocument, 'keydown', ( evt, data ) => {\n\t\t\tconst url = editor.commands.get( 'link' ).value;\n\t\t\tconst shouldOpen = url && data.keyCode === keyCodes.enter && data.altKey;\n\n\t\t\tif ( !shouldOpen ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\topenLink( url );\n\t\t} );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#event:insertContent} and corrects the model\n\t * selection attributes if the selection is at the end of a link after inserting the content.\n\t *\n\t * The purpose of this action is to improve the overall UX because the user is no longer \"trapped\" by the\n\t * `linkHref` attribute of the selection and they can type a \"clean\" (`linkHref`–less) text right away.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/6053.\n\t *\n\t * @private\n\t */\n\t_enableInsertContentSelectionAttributesFixer() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\tthis.listenTo( model, 'insertContent', () => {\n\t\t\tconst nodeBefore = selection.anchor.nodeBefore;\n\t\t\tconst nodeAfter = selection.anchor.nodeAfter;\n\n\t\t\t// NOTE: ↰ and ↱ represent the gravity of the selection.\n\n\t\t\t// The only truly valid case is:\n\t\t\t//\n\t\t\t//\t\t                                 ↰\n\t\t\t//\t\t...<$text linkHref=\"foo\">INSERTED[]</$text>\n\t\t\t//\n\t\t\t// If the selection is not \"trapped\" by the `linkHref` attribute after inserting, there's nothing\n\t\t\t// to fix there.\n\t\t\tif ( !selection.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out the following case where a link with the same href (e.g. <a href=\"foo\">INSERTED</a>) is inserted\n\t\t\t// in the middle of an existing link:\n\t\t\t//\n\t\t\t// Before insertion:\n\t\t\t//\t\t                       ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">l[]ink</$text>\n\t\t\t//\n\t\t\t// Expected after insertion:\n\t\t\t//\t\t                               ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">lINSERTED[]ink</$text>\n\t\t\t//\n\t\t\tif ( !nodeBefore ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out the following case where the selection has the \"linkHref\" attribute because the\n\t\t\t// gravity is overridden and some text with another attribute (e.g. <b>INSERTED</b>) is inserted:\n\t\t\t//\n\t\t\t// Before insertion:\n\t\t\t//\n\t\t\t//\t\t                       ↱\n\t\t\t//\t\t<$text linkHref=\"foo\">[]link</$text>\n\t\t\t//\n\t\t\t// Expected after insertion:\n\t\t\t//\n\t\t\t//\t\t                                                          ↱\n\t\t\t//\t\t<$text bold=\"true\">INSERTED</$text><$text linkHref=\"foo\">[]link</$text>\n\t\t\t//\n\t\t\tif ( !nodeBefore.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out the following case where a link is a inserted in the middle (or before) another link\n\t\t\t// (different URLs, so they will not merge). In this (let's say weird) case, we can leave the selection\n\t\t\t// attributes as they are because the user will end up writing in one link or another anyway.\n\t\t\t//\n\t\t\t// Before insertion:\n\t\t\t//\n\t\t\t//\t\t                       ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">l[]ink</$text>\n\t\t\t//\n\t\t\t// Expected after insertion:\n\t\t\t//\n\t\t\t//\t\t                                                             ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">l</$text><$text linkHref=\"bar\">INSERTED[]</$text><$text linkHref=\"foo\">ink</$text>\n\t\t\t//\n\t\t\tif ( nodeAfter && nodeAfter.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tremoveLinkAttributesFromSelection( writer, getLinkAttributesAllowedOnText( model.schema ) );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/view/document~Document#event:mousedown} and\n\t * {@link module:engine/view/document~Document#event:selectionChange} and puts the selection before/after a link node\n\t * if clicked at the beginning/ending of the link.\n\t *\n\t * The purpose of this action is to allow typing around the link node directly after a click.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/1016.\n\t *\n\t * @private\n\t */\n\t_enableClickingAfterLink() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\teditor.editing.view.addObserver( MouseObserver );\n\n\t\tlet clicked = false;\n\n\t\t// Detect the click.\n\t\tthis.listenTo( editor.editing.view.document, 'mousedown', () => {\n\t\t\tclicked = true;\n\t\t} );\n\n\t\t// When the selection has changed...\n\t\tthis.listenTo( editor.editing.view.document, 'selectionChange', () => {\n\t\t\tif ( !clicked ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// ...and it was caused by the click...\n\t\t\tclicked = false;\n\n\t\t\tconst selection = model.document.selection;\n\n\t\t\t// ...and no text is selected...\n\t\t\tif ( !selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// ...and clicked text is the link...\n\t\t\tif ( !selection.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst position = selection.getFirstPosition();\n\t\t\tconst linkRange = findAttributeRange( position, 'linkHref', selection.getAttribute( 'linkHref' ), model );\n\n\t\t\t// ...check whether clicked start/end boundary of the link.\n\t\t\t// If so, remove the `linkHref` attribute.\n\t\t\tif ( position.isTouching( linkRange.start ) || position.isTouching( linkRange.end ) ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\tremoveLinkAttributesFromSelection( writer, getLinkAttributesAllowedOnText( model.schema ) );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#deleteContent} and {@link module:engine/model/model~Model#insertContent}\n\t * and checks whether typing over the link. If so, attributes of removed text are preserved and applied to the inserted text.\n\t *\n\t * The purpose of this action is to allow modifying a text without loosing the `linkHref` attribute (and other).\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/4762.\n\t *\n\t * @private\n\t */\n\t_enableTypingOverLink() {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\n\t\t// Selection attributes when started typing over the link.\n\t\tlet selectionAttributes;\n\n\t\t// Whether pressed `Backspace` or `Delete`. If so, attributes should not be preserved.\n\t\tlet deletedContent;\n\n\t\t// Detect pressing `Backspace` / `Delete`.\n\t\tthis.listenTo( view.document, 'delete', () => {\n\t\t\tdeletedContent = true;\n\t\t}, { priority: 'high' } );\n\n\t\t// Listening to `model#deleteContent` allows detecting whether selected content was a link.\n\t\t// If so, before removing the element, we will copy its attributes.\n\t\tthis.listenTo( editor.model, 'deleteContent', () => {\n\t\t\tconst selection = editor.model.document.selection;\n\n\t\t\t// Copy attributes only if anything is selected.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// When the content was deleted, do not preserve attributes.\n\t\t\tif ( deletedContent ) {\n\t\t\t\tdeletedContent = false;\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Enabled only when typing.\n\t\t\tif ( !isTyping( editor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( shouldCopyAttributes( editor.model ) ) {\n\t\t\t\tselectionAttributes = selection.getAttributes();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// Listening to `model#insertContent` allows detecting the content insertion.\n\t\t// We want to apply attributes that were removed while typing over the link.\n\t\tthis.listenTo( editor.model, 'insertContent', ( evt, [ element ] ) => {\n\t\t\tdeletedContent = false;\n\n\t\t\t// Enabled only when typing.\n\t\t\tif ( !isTyping( editor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !selectionAttributes ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.model.change( writer => {\n\t\t\t\tfor ( const [ attribute, value ] of selectionAttributes ) {\n\t\t\t\t\twriter.setAttribute( attribute, value, element );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tselectionAttributes = null;\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#deleteContent} and checks whether\n\t * removing a content right after the \"linkHref\" attribute.\n\t *\n\t * If so, the selection should not preserve the `linkHref` attribute. However, if\n\t * the {@link module:typing/twostepcaretmovement~TwoStepCaretMovement} plugin is active and\n\t * the selection has the \"linkHref\" attribute due to overriden gravity (at the end), the `linkHref` attribute should stay untouched.\n\t *\n\t * The purpose of this action is to allow removing the link text and keep the selection outside the link.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/7521.\n\t *\n\t * @private\n\t */\n\t_handleDeleteContentAfterLink() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst view = editor.editing.view;\n\n\t\t// A flag whether attributes `linkHref` attribute should be preserved.\n\t\tlet shouldPreserveAttributes = false;\n\n\t\t// A flag whether the `Backspace` key was pressed.\n\t\tlet hasBackspacePressed = false;\n\n\t\t// Detect pressing `Backspace`.\n\t\tthis.listenTo( view.document, 'delete', ( evt, data ) => {\n\t\t\thasBackspacePressed = data.direction === 'backward';\n\t\t}, { priority: 'high' } );\n\n\t\t// Before removing the content, check whether the selection is inside a link or at the end of link but with 2-SCM enabled.\n\t\t// If so, we want to preserve link attributes.\n\t\tthis.listenTo( model, 'deleteContent', () => {\n\t\t\t// Reset the state.\n\t\t\tshouldPreserveAttributes = false;\n\n\t\t\tconst position = selection.getFirstPosition();\n\t\t\tconst linkHref = selection.getAttribute( 'linkHref' );\n\n\t\t\tif ( !linkHref ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst linkRange = findAttributeRange( position, 'linkHref', linkHref, model );\n\n\t\t\t// Preserve `linkHref` attribute if the selection is in the middle of the link or\n\t\t\t// the selection is at the end of the link and 2-SCM is activated.\n\t\t\tshouldPreserveAttributes = linkRange.containsPosition( position ) || linkRange.end.isEqual( position );\n\t\t}, { priority: 'high' } );\n\n\t\t// After removing the content, check whether the current selection should preserve the `linkHref` attribute.\n\t\tthis.listenTo( model, 'deleteContent', () => {\n\t\t\t// If didn't press `Backspace`.\n\t\t\tif ( !hasBackspacePressed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\thasBackspacePressed = false;\n\n\t\t\t// Disable the mechanism if inside a link (`<$text url=\"foo\">F[]oo</$text>` or <$text url=\"foo\">Foo[]</$text>`).\n\t\t\tif ( shouldPreserveAttributes ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Use `model.enqueueChange()` in order to execute the callback at the end of the changes process.\n\t\t\teditor.model.enqueueChange( writer => {\n\t\t\t\tremoveLinkAttributesFromSelection( writer, getLinkAttributesAllowedOnText( model.schema ) );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\t}\n}\n\n// Make the selection free of link-related model attributes.\n// All link-related model attributes start with \"link\". That includes not only \"linkHref\"\n// but also all decorator attributes (they have dynamic names), or even custom plugins.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {Array.<String>} linkAttributes\nfunction removeLinkAttributesFromSelection( writer, linkAttributes ) {\n\twriter.removeSelectionAttribute( 'linkHref' );\n\n\tfor ( const attribute of linkAttributes ) {\n\t\twriter.removeSelectionAttribute( attribute );\n\t}\n}\n\n// Checks whether selection's attributes should be copied to the new inserted text.\n//\n// @param {module:engine/model/model~Model} model\n// @returns {Boolean}\nfunction shouldCopyAttributes( model ) {\n\tconst selection = model.document.selection;\n\tconst firstPosition = selection.getFirstPosition();\n\tconst lastPosition = selection.getLastPosition();\n\tconst nodeAtFirstPosition = firstPosition.nodeAfter;\n\n\t// The text link node does not exist...\n\tif ( !nodeAtFirstPosition ) {\n\t\treturn false;\n\t}\n\n\t// ...or it isn't the text node...\n\tif ( !nodeAtFirstPosition.is( '$text' ) ) {\n\t\treturn false;\n\t}\n\n\t// ...or isn't the link.\n\tif ( !nodeAtFirstPosition.hasAttribute( 'linkHref' ) ) {\n\t\treturn false;\n\t}\n\n\t// `textNode` = the position is inside the link element.\n\t// `nodeBefore` = the position is at the end of the link element.\n\tconst nodeAtLastPosition = lastPosition.textNode || lastPosition.nodeBefore;\n\n\t// If both references the same node selection contains a single text node.\n\tif ( nodeAtFirstPosition === nodeAtLastPosition ) {\n\t\treturn true;\n\t}\n\n\t// If nodes are not equal, maybe the link nodes has defined additional attributes inside.\n\t// First, we need to find the entire link range.\n\tconst linkRange = findAttributeRange( firstPosition, 'linkHref', nodeAtFirstPosition.getAttribute( 'linkHref' ), model );\n\n\t// Then we can check whether selected range is inside the found link range. If so, attributes should be preserved.\n\treturn linkRange.containsRange( model.createRange( firstPosition, lastPosition ), true );\n}\n\n// Checks whether provided changes were caused by typing.\n//\n// @params {module:core/editor/editor~Editor} editor\n// @returns {Boolean}\nfunction isTyping( editor ) {\n\tconst currentBatch = editor.model.change( writer => writer.batch );\n\n\treturn currentBatch.isTyping;\n}\n\n// Returns an array containing names of the attributes allowed on `$text` that describes the link item.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @returns {Array.<String>}\nfunction getLinkAttributesAllowedOnText( schema ) {\n\tconst textAttributes = schema.getDefinition( '$text' ).allowAttributes;\n\n\treturn textAttributes.filter( attribute => attribute.startsWith( 'link' ) );\n}\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./linkform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/ui/linkformview\n */\n\nimport {\n\tButtonView,\n\tFocusCycler,\n\tLabeledFieldView,\n\tSwitchButtonView,\n\tView,\n\tViewCollection,\n\tcreateLabeledInputText,\n\tinjectCssTransitionDisabler,\n\tsubmitHandler\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\nimport '../../theme/linkform.css';\n\n/**\n * The link form view controller class.\n *\n * See {@link module:link/ui/linkformview~LinkFormView}.\n *\n * @extends module:ui/view~View\n */\nexport default class LinkFormView extends View {\n\t/**\n\t * Creates an instance of the {@link module:link/ui/linkformview~LinkFormView} class.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The localization services instance.\n\t * @param {module:link/linkcommand~LinkCommand} linkCommand Reference to {@link module:link/linkcommand~LinkCommand}.\n\t * @param {String} [protocol] A value of a protocol to be displayed in the input's placeholder.\n\t */\n\tconstructor( locale, linkCommand ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\t/**\n\t\t * Tracks information about DOM focus in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * The URL input view.\n\t\t *\n\t\t * @member {module:ui/labeledfield/labeledfieldview~LabeledFieldView}\n\t\t */\n\t\tthis.urlInputView = this._createUrlInput();\n\n\t\t/**\n\t\t * The Save button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.saveButtonView = this._createButton( t( 'Save' ), icons.check, 'ck-button-save' );\n\t\tthis.saveButtonView.type = 'submit';\n\n\t\t/**\n\t\t * The Cancel button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.cancelButtonView = this._createButton( t( 'Cancel' ), icons.cancel, 'ck-button-cancel', 'cancel' );\n\n\t\t/**\n\t\t * A collection of {@link module:ui/button/switchbuttonview~SwitchButtonView},\n\t\t * which corresponds to {@link module:link/linkcommand~LinkCommand#manualDecorators manual decorators}\n\t\t * configured in the editor.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @type {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._manualDecoratorSwitches = this._createManualDecoratorSwitches( linkCommand );\n\n\t\t/**\n\t\t * A collection of child views in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this._createFormChildren( linkCommand.manualDecorators );\n\n\t\t/**\n\t\t * A collection of views that can be focused in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Helps cycling over {@link #_focusables} in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tconst classList = [ 'ck', 'ck-link-form', 'ck-responsive-form' ];\n\n\t\tif ( linkCommand.manualDecorators.length ) {\n\t\t\tclassList.push( 'ck-link-form_layout-vertical', 'ck-vertical-form' );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\n\t\t\tattributes: {\n\t\t\t\tclass: classList,\n\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\n\t\t\tchildren: this.children\n\t\t} );\n\n\t\tinjectCssTransitionDisabler( this );\n\t}\n\n\t/**\n\t * Obtains the state of the {@link module:ui/button/switchbuttonview~SwitchButtonView switch buttons} representing\n\t * {@link module:link/linkcommand~LinkCommand#manualDecorators manual link decorators}\n\t * in the {@link module:link/ui/linkformview~LinkFormView}.\n\t *\n\t * @returns {Object.<String,Boolean>} Key-value pairs, where the key is the name of the decorator and the value is\n\t * its state.\n\t */\n\tgetDecoratorSwitchesState() {\n\t\treturn Array.from( this._manualDecoratorSwitches ).reduce( ( accumulator, switchButton ) => {\n\t\t\taccumulator[ switchButton.name ] = switchButton.isOn;\n\t\t\treturn accumulator;\n\t\t}, {} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\tconst childViews = [\n\t\t\tthis.urlInputView,\n\t\t\t...this._manualDecoratorSwitches,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( v );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( v.element );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist {@link #_focusables} in the form.\n\t */\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates a labeled input view.\n\t *\n\t * @private\n\t * @returns {module:ui/labeledfield/labeledfieldview~LabeledFieldView} Labeled field view instance.\n\t */\n\t_createUrlInput() {\n\t\tconst t = this.locale.t;\n\t\tconst labeledInput = new LabeledFieldView( this.locale, createLabeledInputText );\n\n\t\tlabeledInput.label = t( 'Link URL' );\n\n\t\treturn labeledInput;\n\t}\n\n\t/**\n\t * Creates a button view.\n\t *\n\t * @private\n\t * @param {String} label The button label.\n\t * @param {String} icon The button icon.\n\t * @param {String} className The additional button CSS class name.\n\t * @param {String} [eventName] An event name that the `ButtonView#execute` event will be delegated to.\n\t * @returns {module:ui/button/buttonview~ButtonView} The button view instance.\n\t */\n\t_createButton( label, icon, className, eventName ) {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: className\n\t\t\t}\n\t\t} );\n\n\t\tif ( eventName ) {\n\t\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\t\t}\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Populates {@link module:ui/viewcollection~ViewCollection} of {@link module:ui/button/switchbuttonview~SwitchButtonView}\n\t * made based on {@link module:link/linkcommand~LinkCommand#manualDecorators}.\n\t *\n\t * @private\n\t * @param {module:link/linkcommand~LinkCommand} linkCommand A reference to the link command.\n\t * @returns {module:ui/viewcollection~ViewCollection} of switch buttons.\n\t */\n\t_createManualDecoratorSwitches( linkCommand ) {\n\t\tconst switches = this.createCollection();\n\n\t\tfor ( const manualDecorator of linkCommand.manualDecorators ) {\n\t\t\tconst switchButton = new SwitchButtonView( this.locale );\n\n\t\t\tswitchButton.set( {\n\t\t\t\tname: manualDecorator.id,\n\t\t\t\tlabel: manualDecorator.label,\n\t\t\t\twithText: true\n\t\t\t} );\n\n\t\t\tswitchButton.bind( 'isOn' ).toMany( [ manualDecorator, linkCommand ], 'value', ( decoratorValue, commandValue ) => {\n\t\t\t\treturn commandValue === undefined && decoratorValue === undefined ? manualDecorator.defaultValue : decoratorValue;\n\t\t\t} );\n\n\t\t\tswitchButton.on( 'execute', () => {\n\t\t\t\tmanualDecorator.set( 'value', !switchButton.isOn );\n\t\t\t} );\n\n\t\t\tswitches.add( switchButton );\n\t\t}\n\n\t\treturn switches;\n\t}\n\n\t/**\n\t * Populates the {@link #children} collection of the form.\n\t *\n\t * If {@link module:link/linkcommand~LinkCommand#manualDecorators manual decorators} are configured in the editor, it creates an\n\t * additional `View` wrapping all {@link #_manualDecoratorSwitches} switch buttons corresponding\n\t * to these decorators.\n\t *\n\t * @private\n\t * @param {module:utils/collection~Collection} manualDecorators A reference to\n\t * the collection of manual decorators stored in the link command.\n\t * @returns {module:ui/viewcollection~ViewCollection} The children of link form view.\n\t */\n\t_createFormChildren( manualDecorators ) {\n\t\tconst children = this.createCollection();\n\n\t\tchildren.add( this.urlInputView );\n\n\t\tif ( manualDecorators.length ) {\n\t\t\tconst additionalButtonsView = new View();\n\n\t\t\tadditionalButtonsView.setTemplate( {\n\t\t\t\ttag: 'ul',\n\t\t\t\tchildren: this._manualDecoratorSwitches.map( switchButton => ( {\n\t\t\t\t\ttag: 'li',\n\t\t\t\t\tchildren: [ switchButton ],\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-list__item'\n\t\t\t\t\t\t]\n\t\t\t\t\t}\n\t\t\t\t} ) ),\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t'ck-reset',\n\t\t\t\t\t\t'ck-list'\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\t\t\tchildren.add( additionalButtonsView );\n\t\t}\n\n\t\tchildren.add( this.saveButtonView );\n\t\tchildren.add( this.cancelButtonView );\n\n\t\treturn children;\n\t}\n}\n\n/**\n * Fired when the form view is submitted (when one of the children triggered the submit event),\n * for example with a click on {@link #saveButtonView}.\n *\n * @event submit\n */\n\n/**\n * Fired when the form view is canceled, for example with a click on {@link #cancelButtonView}.\n *\n * @event cancel\n */\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./linkactions.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/ui/linkactionsview\n */\n\nimport { ButtonView, View, ViewCollection, FocusCycler } from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport { ensureSafeUrl } from '../utils';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\nimport '../../theme/linkactions.css';\n\nimport unlinkIcon from '../../theme/icons/unlink.svg';\n\n/**\n * The link actions view class. This view displays the link preview, allows\n * unlinking or editing the link.\n *\n * @extends module:ui/view~View\n */\nexport default class LinkActionsView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\t/**\n\t\t * Tracks information about DOM focus in the actions.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * The href preview view.\n\t\t *\n\t\t * @member {module:ui/view~View}\n\t\t */\n\t\tthis.previewButtonView = this._createPreviewButton();\n\n\t\t/**\n\t\t * The unlink button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.unlinkButtonView = this._createButton( t( 'Unlink' ), unlinkIcon, 'unlink' );\n\n\t\t/**\n\t\t * The edit link button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.editButtonView = this._createButton( t( 'Edit link' ), icons.pencil, 'edit' );\n\n\t\t/**\n\t\t * The value of the \"href\" attribute of the link to use in the {@link #previewButtonView}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String}\n\t\t */\n\t\tthis.set( 'href' );\n\n\t\t/**\n\t\t * A collection of views that can be focused in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Helps cycling over {@link #_focusables} in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-link-actions',\n\t\t\t\t\t'ck-responsive-form'\n\t\t\t\t],\n\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\tthis.previewButtonView,\n\t\t\t\tthis.editButtonView,\n\t\t\t\tthis.unlinkButtonView\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\tconst childViews = [\n\t\t\tthis.previewButtonView,\n\t\t\tthis.editButtonView,\n\t\t\tthis.unlinkButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( v );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( v.element );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist {@link #_focusables} in the actions.\n\t */\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates a button view.\n\t *\n\t * @private\n\t * @param {String} label The button label.\n\t * @param {String} icon The button icon.\n\t * @param {String} [eventName] An event name that the `ButtonView#execute` event will be delegated to.\n\t * @returns {module:ui/button/buttonview~ButtonView} The button view instance.\n\t */\n\t_createButton( label, icon, eventName ) {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Creates a link href preview button.\n\t *\n\t * @private\n\t * @returns {module:ui/button/buttonview~ButtonView} The button view instance.\n\t */\n\t_createPreviewButton() {\n\t\tconst button = new ButtonView( this.locale );\n\t\tconst bind = this.bindTemplate;\n\t\tconst t = this.t;\n\n\t\tbutton.set( {\n\t\t\twithText: true,\n\t\t\ttooltip: t( 'Open link in new tab' )\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-link-actions__preview'\n\t\t\t\t],\n\t\t\t\thref: bind.to( 'href', href => href && ensureSafeUrl( href ) ),\n\t\t\t\ttarget: '_blank',\n\t\t\t\trel: 'noopener noreferrer'\n\t\t\t}\n\t\t} );\n\n\t\tbutton.bind( 'label' ).to( this, 'href', href => {\n\t\t\treturn href || t( 'This link has no URL' );\n\t\t} );\n\n\t\tbutton.bind( 'isEnabled' ).to( this, 'href', href => !!href );\n\n\t\tbutton.template.tag = 'a';\n\t\tbutton.template.eventListeners = {};\n\n\t\treturn button;\n\t}\n}\n\n/**\n * Fired when the {@link #editButtonView} is clicked.\n *\n * @event edit\n */\n\n/**\n * Fired when the {@link #unlinkButtonView} is clicked.\n *\n * @event unlink\n */\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184zm4.919 10.562-1.414 1.414a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.061-1.06l1.414 1.414 1.414-1.415a.75.75 0 0 1 1.061 1.061l-1.414 1.414 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/linkui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ClickObserver } from 'ckeditor5/src/engine';\nimport { ButtonView, ContextualBalloon, clickOutsideHandler } from 'ckeditor5/src/ui';\nimport { isWidget } from 'ckeditor5/src/widget';\nimport LinkFormView from './ui/linkformview';\nimport LinkActionsView from './ui/linkactionsview';\nimport { addLinkProtocolIfApplicable, isLinkElement, LINK_KEYSTROKE } from './utils';\n\nimport linkIcon from '../theme/icons/link.svg';\n\nconst VISUAL_SELECTION_MARKER_NAME = 'link-ui';\n\n/**\n * The link UI plugin. It introduces the `'link'` and `'unlink'` buttons and support for the <kbd>Ctrl+K</kbd> keystroke.\n *\n * It uses the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class LinkUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ContextualBalloon ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'LinkUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\teditor.editing.view.addObserver( ClickObserver );\n\n\t\t/**\n\t\t * The actions view displayed inside of the balloon.\n\t\t *\n\t\t * @member {module:link/ui/linkactionsview~LinkActionsView}\n\t\t */\n\t\tthis.actionsView = this._createActionsView();\n\n\t\t/**\n\t\t * The form view displayed inside the balloon.\n\t\t *\n\t\t * @member {module:link/ui/linkformview~LinkFormView}\n\t\t */\n\t\tthis.formView = this._createFormView();\n\n\t\t/**\n\t\t * The contextual balloon plugin instance.\n\t\t *\n\t\t * @private\n\t\t * @member {module:ui/panel/balloon/contextualballoon~ContextualBalloon}\n\t\t */\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\t// Create toolbar buttons.\n\t\tthis._createToolbarLinkButton();\n\n\t\t// Attach lifecycle actions to the the balloon.\n\t\tthis._enableUserBalloonInteractions();\n\n\t\t// Renders a fake visual selection marker on an expanded selection.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: VISUAL_SELECTION_MARKER_NAME,\n\t\t\tview: {\n\t\t\t\tclasses: [ 'ck-fake-link-selection' ]\n\t\t\t}\n\t\t} );\n\n\t\t// Renders a fake visual selection marker on a collapsed selection.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t\t\tmodel: VISUAL_SELECTION_MARKER_NAME,\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: [ 'ck-fake-link-selection', 'ck-fake-link-selection_collapsed' ]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tthis.formView.destroy();\n\t}\n\n\t/**\n\t * Creates the {@link module:link/ui/linkactionsview~LinkActionsView} instance.\n\t *\n\t * @private\n\t * @returns {module:link/ui/linkactionsview~LinkActionsView} The link actions view instance.\n\t */\n\t_createActionsView() {\n\t\tconst editor = this.editor;\n\t\tconst actionsView = new LinkActionsView( editor.locale );\n\t\tconst linkCommand = editor.commands.get( 'link' );\n\t\tconst unlinkCommand = editor.commands.get( 'unlink' );\n\n\t\tactionsView.bind( 'href' ).to( linkCommand, 'value' );\n\t\tactionsView.editButtonView.bind( 'isEnabled' ).to( linkCommand );\n\t\tactionsView.unlinkButtonView.bind( 'isEnabled' ).to( unlinkCommand );\n\n\t\t// Execute unlink command after clicking on the \"Edit\" button.\n\t\tthis.listenTo( actionsView, 'edit', () => {\n\t\t\tthis._addFormView();\n\t\t} );\n\n\t\t// Execute unlink command after clicking on the \"Unlink\" button.\n\t\tthis.listenTo( actionsView, 'unlink', () => {\n\t\t\teditor.execute( 'unlink' );\n\t\t\tthis._hideUI();\n\t\t} );\n\n\t\t// Close the panel on esc key press when the **actions have focus**.\n\t\tactionsView.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideUI();\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Open the form view on Ctrl+K when the **actions have focus**..\n\t\tactionsView.keystrokes.set( LINK_KEYSTROKE, ( data, cancel ) => {\n\t\t\tthis._addFormView();\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn actionsView;\n\t}\n\n\t/**\n\t * Creates the {@link module:link/ui/linkformview~LinkFormView} instance.\n\t *\n\t * @private\n\t * @returns {module:link/ui/linkformview~LinkFormView} The link form view instance.\n\t */\n\t_createFormView() {\n\t\tconst editor = this.editor;\n\t\tconst linkCommand = editor.commands.get( 'link' );\n\t\tconst defaultProtocol = editor.config.get( 'link.defaultProtocol' );\n\n\t\tconst formView = new LinkFormView( editor.locale, linkCommand );\n\n\t\tformView.urlInputView.fieldView.bind( 'value' ).to( linkCommand, 'value' );\n\n\t\t// Form elements should be read-only when corresponding commands are disabled.\n\t\tformView.urlInputView.bind( 'isReadOnly' ).to( linkCommand, 'isEnabled', value => !value );\n\t\tformView.saveButtonView.bind( 'isEnabled' ).to( linkCommand );\n\n\t\t// Execute link command after clicking the \"Save\" button.\n\t\tthis.listenTo( formView, 'submit', () => {\n\t\t\tconst { value } = formView.urlInputView.fieldView.element;\n\t\t\tconst parsedUrl = addLinkProtocolIfApplicable( value, defaultProtocol );\n\t\t\teditor.execute( 'link', parsedUrl, formView.getDecoratorSwitchesState() );\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Hide the panel after clicking the \"Cancel\" button.\n\t\tthis.listenTo( formView, 'cancel', () => {\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Close the panel on esc key press when the **form has focus**.\n\t\tformView.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._closeFormView();\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn formView;\n\t}\n\n\t/**\n\t * Creates a toolbar Link button. Clicking this button will show\n\t * a {@link #_balloon} attached to the selection.\n\t *\n\t * @private\n\t */\n\t_createToolbarLinkButton() {\n\t\tconst editor = this.editor;\n\t\tconst linkCommand = editor.commands.get( 'link' );\n\t\tconst t = editor.t;\n\n\t\t// Handle the `Ctrl+K` keystroke and show the panel.\n\t\teditor.keystrokes.set( LINK_KEYSTROKE, ( keyEvtData, cancel ) => {\n\t\t\t// Prevent focusing the search bar in FF, Chrome and Edge. See https://github.com/ckeditor/ckeditor5/issues/4811.\n\t\t\tcancel();\n\n\t\t\tif ( linkCommand.isEnabled ) {\n\t\t\t\tthis._showUI( true );\n\t\t\t}\n\t\t} );\n\n\t\teditor.ui.componentFactory.add( 'link', locale => {\n\t\t\tconst button = new ButtonView( locale );\n\n\t\t\tbutton.isEnabled = true;\n\t\t\tbutton.label = t( 'Link' );\n\t\t\tbutton.icon = linkIcon;\n\t\t\tbutton.keystroke = LINK_KEYSTROKE;\n\t\t\tbutton.tooltip = true;\n\t\t\tbutton.isToggleable = true;\n\n\t\t\t// Bind button to the command.\n\t\t\tbutton.bind( 'isEnabled' ).to( linkCommand, 'isEnabled' );\n\t\t\tbutton.bind( 'isOn' ).to( linkCommand, 'value', value => !!value );\n\n\t\t\t// Show the panel on button click.\n\t\t\tthis.listenTo( button, 'execute', () => this._showUI( true ) );\n\n\t\t\treturn button;\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches actions that control whether the balloon panel containing the\n\t * {@link #formView} is visible or not.\n\t *\n\t * @private\n\t */\n\t_enableUserBalloonInteractions() {\n\t\tconst viewDocument = this.editor.editing.view.document;\n\n\t\t// Handle click on view document and show panel when selection is placed inside the link element.\n\t\t// Keep panel open until selection will be inside the same link element.\n\t\tthis.listenTo( viewDocument, 'click', () => {\n\t\t\tconst parentLink = this._getSelectedLinkElement();\n\n\t\t\tif ( parentLink ) {\n\t\t\t\t// Then show panel but keep focus inside editor editable.\n\t\t\t\tthis._showUI();\n\t\t\t}\n\t\t} );\n\n\t\t// Focus the form if the balloon is visible and the Tab key has been pressed.\n\t\tthis.editor.keystrokes.set( 'Tab', ( data, cancel ) => {\n\t\t\tif ( this._areActionsVisible && !this.actionsView.focusTracker.isFocused ) {\n\t\t\t\tthis.actionsView.focus();\n\t\t\t\tcancel();\n\t\t\t}\n\t\t}, {\n\t\t\t// Use the high priority because the link UI navigation is more important\n\t\t\t// than other feature's actions, e.g. list indentation.\n\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/146\n\t\t\tpriority: 'high'\n\t\t} );\n\n\t\t// Close the panel on the Esc key press when the editable has focus and the balloon is visible.\n\t\tthis.editor.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tif ( this._isUIVisible ) {\n\t\t\t\tthis._hideUI();\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this.formView,\n\t\t\tactivator: () => this._isUIInPanel,\n\t\t\tcontextElements: [ this._balloon.view.element ],\n\t\t\tcallback: () => this._hideUI()\n\t\t} );\n\t}\n\n\t/**\n\t * Adds the {@link #actionsView} to the {@link #_balloon}.\n\t *\n\t * @protected\n\t */\n\t_addActionsView() {\n\t\tif ( this._areActionsInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.actionsView,\n\t\t\tposition: this._getBalloonPositionData()\n\t\t} );\n\t}\n\n\t/**\n\t * Adds the {@link #formView} to the {@link #_balloon}.\n\t *\n\t * @protected\n\t */\n\t_addFormView() {\n\t\tif ( this._isFormInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst linkCommand = editor.commands.get( 'link' );\n\n\t\tthis.formView.disableCssTransitions();\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.formView,\n\t\t\tposition: this._getBalloonPositionData()\n\t\t} );\n\n\t\t// Select input when form view is currently visible.\n\t\tif ( this._balloon.visibleView === this.formView ) {\n\t\t\tthis.formView.urlInputView.fieldView.select();\n\t\t}\n\n\t\tthis.formView.enableCssTransitions();\n\n\t\t// Make sure that each time the panel shows up, the URL field remains in sync with the value of\n\t\t// the command. If the user typed in the input, then canceled the balloon (`urlInputView.fieldView#value` stays\n\t\t// unaltered) and re-opened it without changing the value of the link command (e.g. because they\n\t\t// clicked the same link), they would see the old value instead of the actual value of the command.\n\t\t// https://github.com/ckeditor/ckeditor5-link/issues/78\n\t\t// https://github.com/ckeditor/ckeditor5-link/issues/123\n\t\tthis.formView.urlInputView.fieldView.element.value = linkCommand.value || '';\n\t}\n\n\t/**\n\t * Closes the form view. Decides whether the balloon should be hidden completely or if the action view should be shown. This is\n\t * decided upon the link command value (which has a value if the document selection is in the link).\n\t *\n\t * Additionally, if any {@link module:link/link~LinkConfig#decorators} are defined in the editor configuration, the state of\n\t * switch buttons responsible for manual decorator handling is restored.\n\t *\n\t * @private\n\t */\n\t_closeFormView() {\n\t\tconst linkCommand = this.editor.commands.get( 'link' );\n\n\t\t// Restore manual decorator states to represent the current model state. This case is important to reset the switch buttons\n\t\t// when the user cancels the editing form.\n\t\tlinkCommand.restoreManualDecoratorStates();\n\n\t\tif ( linkCommand.value !== undefined ) {\n\t\t\tthis._removeFormView();\n\t\t} else {\n\t\t\tthis._hideUI();\n\t\t}\n\t}\n\n\t/**\n\t * Removes the {@link #formView} from the {@link #_balloon}.\n\t *\n\t * @protected\n\t */\n\t_removeFormView() {\n\t\tif ( this._isFormInPanel ) {\n\t\t\t// Blur the input element before removing it from DOM to prevent issues in some browsers.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\t\tthis.formView.saveButtonView.focus();\n\n\t\t\tthis._balloon.remove( this.formView );\n\n\t\t\t// Because the form has an input which has focus, the focus must be brought back\n\t\t\t// to the editor. Otherwise, it would be lost.\n\t\t\tthis.editor.editing.view.focus();\n\n\t\t\tthis._hideFakeVisualSelection();\n\t\t}\n\t}\n\n\t/**\n\t * Shows the correct UI type. It is either {@link #formView} or {@link #actionsView}.\n\t *\n\t * @param {Boolean} forceVisible\n\t * @private\n\t */\n\t_showUI( forceVisible = false ) {\n\t\t// When there's no link under the selection, go straight to the editing UI.\n\t\tif ( !this._getSelectedLinkElement() ) {\n\t\t\t// Show visual selection on a text without a link when the contextual balloon is displayed.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/4721.\n\t\t\tthis._showFakeVisualSelection();\n\n\t\t\tthis._addActionsView();\n\n\t\t\t// Be sure panel with link is visible.\n\t\t\tif ( forceVisible ) {\n\t\t\t\tthis._balloon.showStack( 'main' );\n\t\t\t}\n\n\t\t\tthis._addFormView();\n\t\t}\n\t\t// If there's a link under the selection...\n\t\telse {\n\t\t\t// Go to the editing UI if actions are already visible.\n\t\t\tif ( this._areActionsVisible ) {\n\t\t\t\tthis._addFormView();\n\t\t\t}\n\t\t\t// Otherwise display just the actions UI.\n\t\t\telse {\n\t\t\t\tthis._addActionsView();\n\t\t\t}\n\n\t\t\t// Be sure panel with link is visible.\n\t\t\tif ( forceVisible ) {\n\t\t\t\tthis._balloon.showStack( 'main' );\n\t\t\t}\n\t\t}\n\n\t\t// Begin responding to ui#update once the UI is added.\n\t\tthis._startUpdatingUI();\n\t}\n\n\t/**\n\t * Removes the {@link #formView} from the {@link #_balloon}.\n\t *\n\t * See {@link #_addFormView}, {@link #_addActionsView}.\n\t *\n\t * @protected\n\t */\n\t_hideUI() {\n\t\tif ( !this._isUIInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\t\tthis.stopListening( this._balloon, 'change:visibleView' );\n\n\t\t// Make sure the focus always gets back to the editable _before_ removing the focused form view.\n\t\t// Doing otherwise causes issues in some browsers. See https://github.com/ckeditor/ckeditor5-link/issues/193.\n\t\teditor.editing.view.focus();\n\n\t\t// Remove form first because it's on top of the stack.\n\t\tthis._removeFormView();\n\n\t\t// Then remove the actions view because it's beneath the form.\n\t\tthis._balloon.remove( this.actionsView );\n\n\t\tthis._hideFakeVisualSelection();\n\t}\n\n\t/**\n\t * Makes the UI react to the {@link module:core/editor/editorui~EditorUI#event:update} event to\n\t * reposition itself when the editor UI should be refreshed.\n\t *\n\t * See: {@link #_hideUI} to learn when the UI stops reacting to the `update` event.\n\t *\n\t * @protected\n\t */\n\t_startUpdatingUI() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\tlet prevSelectedLink = this._getSelectedLinkElement();\n\t\tlet prevSelectionParent = getSelectionParent();\n\n\t\tconst update = () => {\n\t\t\tconst selectedLink = this._getSelectedLinkElement();\n\t\t\tconst selectionParent = getSelectionParent();\n\n\t\t\t// Hide the panel if:\n\t\t\t//\n\t\t\t// * the selection went out of the EXISTING link element. E.g. user moved the caret out\n\t\t\t//   of the link,\n\t\t\t// * the selection went to a different parent when creating a NEW link. E.g. someone\n\t\t\t//   else modified the document.\n\t\t\t// * the selection has expanded (e.g. displaying link actions then pressing SHIFT+Right arrow).\n\t\t\t//\n\t\t\t// Note: #_getSelectedLinkElement will return a link for a non-collapsed selection only\n\t\t\t// when fully selected.\n\t\t\tif ( ( prevSelectedLink && !selectedLink ) ||\n\t\t\t\t( !prevSelectedLink && selectionParent !== prevSelectionParent ) ) {\n\t\t\t\tthis._hideUI();\n\t\t\t}\n\t\t\t// Update the position of the panel when:\n\t\t\t//  * link panel is in the visible stack\n\t\t\t//  * the selection remains in the original link element,\n\t\t\t//  * there was no link element in the first place, i.e. creating a new link\n\t\t\telse if ( this._isUIVisible ) {\n\t\t\t\t// If still in a link element, simply update the position of the balloon.\n\t\t\t\t// If there was no link (e.g. inserting one), the balloon must be moved\n\t\t\t\t// to the new position in the editing view (a new native DOM range).\n\t\t\t\tthis._balloon.updatePosition( this._getBalloonPositionData() );\n\t\t\t}\n\n\t\t\tprevSelectedLink = selectedLink;\n\t\t\tprevSelectionParent = selectionParent;\n\t\t};\n\n\t\tfunction getSelectionParent() {\n\t\t\treturn viewDocument.selection.focus.getAncestors()\n\t\t\t\t.reverse()\n\t\t\t\t.find( node => node.is( 'element' ) );\n\t\t}\n\n\t\tthis.listenTo( editor.ui, 'update', update );\n\t\tthis.listenTo( this._balloon, 'change:visibleView', update );\n\t}\n\n\t/**\n\t * Returns `true` when {@link #formView} is in the {@link #_balloon}.\n\t *\n\t * @readonly\n\t * @protected\n\t * @type {Boolean}\n\t */\n\tget _isFormInPanel() {\n\t\treturn this._balloon.hasView( this.formView );\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} is in the {@link #_balloon}.\n\t *\n\t * @readonly\n\t * @protected\n\t * @type {Boolean}\n\t */\n\tget _areActionsInPanel() {\n\t\treturn this._balloon.hasView( this.actionsView );\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} is in the {@link #_balloon} and it is\n\t * currently visible.\n\t *\n\t * @readonly\n\t * @protected\n\t * @type {Boolean}\n\t */\n\tget _areActionsVisible() {\n\t\treturn this._balloon.visibleView === this.actionsView;\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} or {@link #formView} is in the {@link #_balloon}.\n\t *\n\t * @readonly\n\t * @protected\n\t * @type {Boolean}\n\t */\n\tget _isUIInPanel() {\n\t\treturn this._isFormInPanel || this._areActionsInPanel;\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} or {@link #formView} is in the {@link #_balloon} and it is\n\t * currently visible.\n\t *\n\t * @readonly\n\t * @protected\n\t * @type {Boolean}\n\t */\n\tget _isUIVisible() {\n\t\tconst visibleView = this._balloon.visibleView;\n\n\t\treturn visibleView == this.formView || this._areActionsVisible;\n\t}\n\n\t/**\n\t * Returns positioning options for the {@link #_balloon}. They control the way the balloon is attached\n\t * to the target element or selection.\n\t *\n\t * If the selection is collapsed and inside a link element, the panel will be attached to the\n\t * entire link element. Otherwise, it will be attached to the selection.\n\t *\n\t * @private\n\t * @returns {module:utils/dom/position~Options}\n\t */\n\t_getBalloonPositionData() {\n\t\tconst view = this.editor.editing.view;\n\t\tconst model = this.editor.model;\n\t\tconst viewDocument = view.document;\n\t\tlet target = null;\n\n\t\tif ( model.markers.has( VISUAL_SELECTION_MARKER_NAME ) ) {\n\t\t\t// There are cases when we highlight selection using a marker (#7705, #4721).\n\t\t\tconst markerViewElements = Array.from( this.editor.editing.mapper.markerNameToElements( VISUAL_SELECTION_MARKER_NAME ) );\n\t\t\tconst newRange = view.createRange(\n\t\t\t\tview.createPositionBefore( markerViewElements[ 0 ] ),\n\t\t\t\tview.createPositionAfter( markerViewElements[ markerViewElements.length - 1 ] )\n\t\t\t);\n\n\t\t\ttarget = view.domConverter.viewRangeToDom( newRange );\n\t\t} else {\n\t\t\t// Make sure the target is calculated on demand at the last moment because a cached DOM range\n\t\t\t// (which is very fragile) can desynchronize with the state of the editing view if there was\n\t\t\t// any rendering done in the meantime. This can happen, for instance, when an inline widget\n\t\t\t// gets unlinked.\n\t\t\ttarget = () => {\n\t\t\t\tconst targetLink = this._getSelectedLinkElement();\n\n\t\t\t\treturn targetLink ?\n\t\t\t\t\t// When selection is inside link element, then attach panel to this element.\n\t\t\t\t\tview.domConverter.mapViewToDom( targetLink ) :\n\t\t\t\t\t// Otherwise attach panel to the selection.\n\t\t\t\t\tview.domConverter.viewRangeToDom( viewDocument.selection.getFirstRange() );\n\t\t\t};\n\t\t}\n\n\t\treturn { target };\n\t}\n\n\t/**\n\t * Returns the link {@link module:engine/view/attributeelement~AttributeElement} under\n\t * the {@link module:engine/view/document~Document editing view's} selection or `null`\n\t * if there is none.\n\t *\n\t * **Note**: For a non–collapsed selection, the link element is returned when **fully**\n\t * selected and the **only** element within the selection boundaries, or when\n\t * a linked widget is selected.\n\t *\n\t * @private\n\t * @returns {module:engine/view/attributeelement~AttributeElement|null}\n\t */\n\t_getSelectedLinkElement() {\n\t\tconst view = this.editor.editing.view;\n\t\tconst selection = view.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t// The selection is collapsed or some widget is selected (especially inline widget).\n\t\tif ( selection.isCollapsed || selectedElement && isWidget( selectedElement ) ) {\n\t\t\treturn findLinkElementAncestor( selection.getFirstPosition() );\n\t\t} else {\n\t\t\t// The range for fully selected link is usually anchored in adjacent text nodes.\n\t\t\t// Trim it to get closer to the actual link element.\n\t\t\tconst range = selection.getFirstRange().getTrimmed();\n\t\t\tconst startLink = findLinkElementAncestor( range.start );\n\t\t\tconst endLink = findLinkElementAncestor( range.end );\n\n\t\t\tif ( !startLink || startLink != endLink ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\t// Check if the link element is fully selected.\n\t\t\tif ( view.createRangeIn( startLink ).getTrimmed().isEqual( range ) ) {\n\t\t\t\treturn startLink;\n\t\t\t} else {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Displays a fake visual selection when the contextual balloon is displayed.\n\t *\n\t * This adds a 'link-ui' marker into the document that is rendered as a highlight on selected text fragment.\n\t *\n\t * @private\n\t */\n\t_showFakeVisualSelection() {\n\t\tconst model = this.editor.model;\n\n\t\tmodel.change( writer => {\n\t\t\tconst range = model.document.selection.getFirstRange();\n\n\t\t\tif ( model.markers.has( VISUAL_SELECTION_MARKER_NAME ) ) {\n\t\t\t\twriter.updateMarker( VISUAL_SELECTION_MARKER_NAME, { range } );\n\t\t\t} else {\n\t\t\t\tif ( range.start.isAtEnd ) {\n\t\t\t\t\tconst startPosition = range.start.getLastMatchingPosition(\n\t\t\t\t\t\t( { item } ) => !model.schema.isContent( item ),\n\t\t\t\t\t\t{ boundaries: range }\n\t\t\t\t\t);\n\n\t\t\t\t\twriter.addMarker( VISUAL_SELECTION_MARKER_NAME, {\n\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\trange: writer.createRange( startPosition, range.end )\n\t\t\t\t\t} );\n\t\t\t\t} else {\n\t\t\t\t\twriter.addMarker( VISUAL_SELECTION_MARKER_NAME, {\n\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\trange\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Hides the fake visual selection created in {@link #_showFakeVisualSelection}.\n\t *\n\t * @private\n\t */\n\t_hideFakeVisualSelection() {\n\t\tconst model = this.editor.model;\n\n\t\tif ( model.markers.has( VISUAL_SELECTION_MARKER_NAME ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.removeMarker( VISUAL_SELECTION_MARKER_NAME );\n\t\t\t} );\n\t\t}\n\t}\n}\n\n// Returns a link element if there's one among the ancestors of the provided `Position`.\n//\n// @private\n// @param {module:engine/view/position~Position} View position to analyze.\n// @returns {module:engine/view/attributeelement~AttributeElement|null} Link element at the position or null.\nfunction findLinkElementAncestor( position ) {\n\treturn position.getAncestors().find( ancestor => isLinkElement( ancestor ) );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/autolink\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Delete, TextWatcher, getLastTextLine } from 'ckeditor5/src/typing';\n\nimport { addLinkProtocolIfApplicable, linkHasProtocol } from './utils';\n\nconst MIN_LINK_LENGTH_WITH_SPACE_AT_END = 4; // Ie: \"t.co \" (length 5).\n\n// This was a tweak from https://gist.github.com/dperini/729294.\nconst URL_REG_EXP = new RegExp(\n\t// Group 1: Line start or after a space.\n\t'(^|\\\\s)' +\n\t// Group 2: Detected URL (or e-mail).\n\t'(' +\n\t\t// Protocol identifier or short syntax \"//\"\n\t\t// a. Full form http://user@foo.bar.baz:8080/foo/bar.html#baz?foo=bar\n\t\t'(' +\n\t\t\t'(?:(?:(?:https?|ftp):)?\\\\/\\\\/)' +\n\t\t\t// BasicAuth using user:pass (optional)\n\t\t\t'(?:\\\\S+(?::\\\\S*)?@)?' +\n\t\t\t'(?:' +\n\t\t\t\t// IP address dotted notation octets\n\t\t\t\t// excludes loopback network 0.0.0.0\n\t\t\t\t// excludes reserved space >= 224.0.0.0\n\t\t\t\t// excludes network & broadcast addresses\n\t\t\t\t// (first & last IP address of each class)\n\t\t\t\t'(?:[1-9]\\\\d?|1\\\\d\\\\d|2[01]\\\\d|22[0-3])' +\n\t\t\t\t'(?:\\\\.(?:1?\\\\d{1,2}|2[0-4]\\\\d|25[0-5])){2}' +\n\t\t\t\t'(?:\\\\.(?:[1-9]\\\\d?|1\\\\d\\\\d|2[0-4]\\\\d|25[0-4]))' +\n\t\t\t\t'|' +\n\t\t\t\t'(' +\n\t\t\t\t\t// Do not allow `www.foo` - see https://github.com/ckeditor/ckeditor5/issues/8050.\n\t\t\t\t\t'((?!www\\\\.)|(www\\\\.))' +\n\t\t\t\t\t// Host & domain names.\n\t\t\t\t\t'(?![-_])(?:[-_a-z0-9\\\\u00a1-\\\\uffff]{1,63}\\\\.)+' +\n\t\t\t\t\t// TLD identifier name.\n\t\t\t\t\t'(?:[a-z\\\\u00a1-\\\\uffff]{2,63})' +\n\t\t\t\t')' +\n\t\t\t')' +\n\t\t\t// port number (optional)\n\t\t\t'(?::\\\\d{2,5})?' +\n\t\t\t// resource path (optional)\n\t\t\t'(?:[/?#]\\\\S*)?' +\n\t\t')' +\n\t\t'|' +\n\t\t// b. Short form (either www.example.com or example@example.com)\n\t\t'(' +\n\t\t\t'(www.|(\\\\S+@))' +\n\t\t\t// Host & domain names.\n\t\t\t'((?![-_])(?:[-_a-z0-9\\\\u00a1-\\\\uffff]{1,63}\\\\.))+' +\n\t\t\t// TLD identifier name.\n\t\t\t'(?:[a-z\\\\u00a1-\\\\uffff]{2,63})' +\n\t\t')' +\n\t')$', 'i' );\n\nconst URL_GROUP_IN_MATCH = 2;\n\n/**\n * The autolink plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class AutoLink extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ Delete ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'AutoLink';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\tselection.on( 'change:range', () => {\n\t\t\t// Disable plugin when selection is inside a code block.\n\t\t\tthis.isEnabled = !selection.anchor.parent.is( 'element', 'codeBlock' );\n\t\t} );\n\n\t\tthis._enableTypingHandling();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tthis._enableEnterHandling();\n\t\tthis._enableShiftEnterHandling();\n\t}\n\n\t/**\n\t * Enables autolinking on typing.\n\t *\n\t * @private\n\t */\n\t_enableTypingHandling() {\n\t\tconst editor = this.editor;\n\n\t\tconst watcher = new TextWatcher( editor.model, text => {\n\t\t\t// 1. Detect <kbd>Space</kbd> after a text with a potential link.\n\t\t\tif ( !isSingleSpaceAtTheEnd( text ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// 2. Check text before last typed <kbd>Space</kbd>.\n\t\t\tconst url = getUrlAtTextEnd( text.substr( 0, text.length - 1 ) );\n\n\t\t\tif ( url ) {\n\t\t\t\treturn { url };\n\t\t\t}\n\t\t} );\n\n\t\twatcher.on( 'matched:data', ( evt, data ) => {\n\t\t\tconst { batch, range, url } = data;\n\n\t\t\tif ( !batch.isTyping ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst linkEnd = range.end.getShiftedBy( -1 ); // Executed after a space character.\n\t\t\tconst linkStart = linkEnd.getShiftedBy( -url.length );\n\n\t\t\tconst linkRange = editor.model.createRange( linkStart, linkEnd );\n\n\t\t\tthis._applyAutoLink( url, linkRange );\n\t\t} );\n\n\t\twatcher.bind( 'isEnabled' ).to( this );\n\t}\n\n\t/**\n\t * Enables autolinking on the <kbd>Enter</kbd> key.\n\t *\n\t * @private\n\t */\n\t_enableEnterHandling() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst enterCommand = editor.commands.get( 'enter' );\n\n\t\tif ( !enterCommand ) {\n\t\t\treturn;\n\t\t}\n\n\t\tenterCommand.on( 'execute', () => {\n\t\t\tconst position = model.document.selection.getFirstPosition();\n\n\t\t\tif ( !position.parent.previousSibling ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst rangeToCheck = model.createRangeIn( position.parent.previousSibling );\n\n\t\t\tthis._checkAndApplyAutoLinkOnRange( rangeToCheck );\n\t\t} );\n\t}\n\n\t/**\n\t * Enables autolinking on the <kbd>Shift</kbd>+<kbd>Enter</kbd> keyboard shortcut.\n\t *\n\t * @private\n\t */\n\t_enableShiftEnterHandling() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tconst shiftEnterCommand = editor.commands.get( 'shiftEnter' );\n\n\t\tif ( !shiftEnterCommand ) {\n\t\t\treturn;\n\t\t}\n\n\t\tshiftEnterCommand.on( 'execute', () => {\n\t\t\tconst position = model.document.selection.getFirstPosition();\n\n\t\t\tconst rangeToCheck = model.createRange(\n\t\t\t\tmodel.createPositionAt( position.parent, 0 ),\n\t\t\t\tposition.getShiftedBy( -1 )\n\t\t\t);\n\n\t\t\tthis._checkAndApplyAutoLinkOnRange( rangeToCheck );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks if the passed range contains a linkable text.\n\t *\n\t * @param {module:engine/model/range~Range} rangeToCheck\n\t * @private\n\t */\n\t_checkAndApplyAutoLinkOnRange( rangeToCheck ) {\n\t\tconst model = this.editor.model;\n\t\tconst { text, range } = getLastTextLine( rangeToCheck, model );\n\n\t\tconst url = getUrlAtTextEnd( text );\n\n\t\tif ( url ) {\n\t\t\tconst linkRange = model.createRange(\n\t\t\t\trange.end.getShiftedBy( -url.length ),\n\t\t\t\trange.end\n\t\t\t);\n\n\t\t\tthis._applyAutoLink( url, linkRange );\n\t\t}\n\t}\n\n\t/**\n\t * Applies a link on a given range if the link should be applied.\n\t *\n\t * @param {String} url The URL to link.\n\t * @param {module:engine/model/range~Range} range The text range to apply the link attribute to.\n\t * @private\n\t */\n\t_applyAutoLink( url, range ) {\n\t\tconst model = this.editor.model;\n\n\t\tconst defaultProtocol = this.editor.config.get( 'link.defaultProtocol' );\n\t\tconst fullUrl = addLinkProtocolIfApplicable( url, defaultProtocol );\n\n\t\tif ( !this.isEnabled || !isLinkAllowedOnRange( range, model ) || !linkHasProtocol( fullUrl ) || linkIsAlreadySet( range ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._persistAutoLink( fullUrl, range );\n\t}\n\n\t/**\n\t * Enqueues autolink changes in the model.\n\t *\n\t * @param {String} url The URL to link.\n\t * @param {module:engine/model/range~Range} range The text range to apply the link attribute to.\n\t * @protected\n\t */\n\t_persistAutoLink( url, range ) {\n\t\tconst model = this.editor.model;\n\t\tconst deletePlugin = this.editor.plugins.get( 'Delete' );\n\n\t\t// Enqueue change to make undo step.\n\t\tmodel.enqueueChange( writer => {\n\t\t\twriter.setAttribute( 'linkHref', url, range );\n\n\t\t\tmodel.enqueueChange( () => {\n\t\t\t\tdeletePlugin.requestUndoOnBackspace();\n\t\t\t} );\n\t\t} );\n\t}\n}\n\n// Check if text should be evaluated by the plugin in order to reduce number of RegExp checks on whole text.\nfunction isSingleSpaceAtTheEnd( text ) {\n\treturn text.length > MIN_LINK_LENGTH_WITH_SPACE_AT_END && text[ text.length - 1 ] === ' ' && text[ text.length - 2 ] !== ' ';\n}\n\nfunction getUrlAtTextEnd( text ) {\n\tconst match = URL_REG_EXP.exec( text );\n\n\treturn match ? match[ URL_GROUP_IN_MATCH ] : null;\n}\n\nfunction isLinkAllowedOnRange( range, model ) {\n\treturn model.schema.checkAttributeInSelection( model.createSelection( range ), 'linkHref' );\n}\n\nfunction linkIsAlreadySet( range ) {\n\tconst item = range.start.nodeAfter;\n\treturn item && item.hasAttribute( 'linkHref' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The list command. It is used by the {@link module:list/list~List list feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class ListCommand extends Command {\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor instance.\n\t * @param {'numbered'|'bulleted'} type List type that will be handled by this command.\n\t */\n\tconstructor( editor, type ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The type of the list created by the command.\n\t\t *\n\t\t * @readonly\n\t\t * @member {'numbered'|'bulleted'|'todo'}\n\t\t */\n\t\tthis.type = type;\n\n\t\t/**\n\t\t * A flag indicating whether the command is active, which means that the selection starts in a list of the same type.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #value\n\t\t */\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the list command.\n\t *\n\t * @fires execute\n\t * @param {Object} [options] Command options.\n\t * @param {Boolean} [options.forceValue] If set, it will force the command behavior. If `true`, the command will try to convert the\n\t * selected items and potentially the neighbor elements to the proper list items. If set to `false`, it will convert selected elements\n\t * to paragraphs. If not set, the command will toggle selected elements to list items or paragraphs, depending on the selection.\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst blocks = Array.from( document.selection.getSelectedBlocks() )\n\t\t\t.filter( block => checkCanBecomeListItem( block, model.schema ) );\n\n\t\t// Whether we are turning off some items.\n\t\tconst turnOff = options.forceValue !== undefined ? !options.forceValue : this.value;\n\n\t\t// If we are turning off items, we are going to rename them to paragraphs.\n\n\t\tmodel.change( writer => {\n\t\t\t// If part of a list got turned off, we need to handle (outdent) all of sub-items of the last turned-off item.\n\t\t\t// To be sure that model is all the time in a good state, we first fix items below turned-off item.\n\t\t\tif ( turnOff ) {\n\t\t\t\t// Start from the model item that is just after the last turned-off item.\n\t\t\t\tlet next = blocks[ blocks.length - 1 ].nextSibling;\n\t\t\t\tlet currentIndent = Number.POSITIVE_INFINITY;\n\t\t\t\tlet changes = [];\n\n\t\t\t\t// Correct indent of all items after the last turned off item.\n\t\t\t\t// Rules that should be followed:\n\t\t\t\t// 1. All direct sub-items of turned-off item should become indent 0, because the first item after it\n\t\t\t\t//    will be the first item of a new list. Other items are at the same level, so should have same 0 index.\n\t\t\t\t// 2. All items with indent lower than indent of turned-off item should become indent 0, because they\n\t\t\t\t//    should not end up as a child of any of list items that they were not children of before.\n\t\t\t\t// 3. All other items should have their indent changed relatively to it's parent.\n\t\t\t\t//\n\t\t\t\t// For example:\n\t\t\t\t// 1  * --------\n\t\t\t\t// 2     * --------\n\t\t\t\t// 3        * --------\t\t\t<-- this is turned off.\n\t\t\t\t// 4           * --------\t\t<-- this has to become indent = 0, because it will be first item on a new list.\n\t\t\t\t// 5              * --------\t<-- this should be still be a child of item above, so indent = 1.\n\t\t\t\t// 6        * --------\t\t\t<-- this has to become indent = 0, because it should not be a child of any of items above.\n\t\t\t\t// 7           * --------\t\t<-- this should be still be a child of item above, so indent = 1.\n\t\t\t\t// 8     * --------\t\t\t\t<-- this has to become indent = 0.\n\t\t\t\t// 9        * --------\t\t\t<-- this should still be a child of item above, so indent = 1.\n\t\t\t\t// 10          * --------\t\t<-- this should still be a child of item above, so indent = 2.\n\t\t\t\t// 11          * --------\t\t<-- this should still be at the same level as item above, so indent = 2.\n\t\t\t\t// 12 * --------\t\t\t\t<-- this and all below are left unchanged.\n\t\t\t\t// 13    * --------\n\t\t\t\t// 14       * --------\n\t\t\t\t//\n\t\t\t\t// After turning off 3 the list becomes:\n\t\t\t\t//\n\t\t\t\t// 1  * --------\n\t\t\t\t// 2     * --------\n\t\t\t\t//\n\t\t\t\t// 3  --------\n\t\t\t\t//\n\t\t\t\t// 4  * --------\n\t\t\t\t// 5     * --------\n\t\t\t\t// 6  * --------\n\t\t\t\t// 7     * --------\n\t\t\t\t// 8  * --------\n\t\t\t\t// 9     * --------\n\t\t\t\t// 10       * --------\n\t\t\t\t// 11       * --------\n\t\t\t\t// 12 * --------\n\t\t\t\t// 13    * --------\n\t\t\t\t// 14       * --------\n\t\t\t\t//\n\t\t\t\t// Thanks to this algorithm no lists are mismatched and no items get unexpected children/parent, while\n\t\t\t\t// those parent-child connection which are possible to maintain are still maintained. It's worth noting\n\t\t\t\t// that this is the same effect that we would be get by multiple use of outdent command. However doing\n\t\t\t\t// it like this is much more efficient because it's less operation (less memory usage, easier OT) and\n\t\t\t\t// less conversion (faster).\n\t\t\t\twhile ( next && next.name == 'listItem' && next.getAttribute( 'listIndent' ) !== 0 ) {\n\t\t\t\t\t// Check each next list item, as long as its indent is bigger than 0.\n\t\t\t\t\t// If the indent is 0 we are not going to change anything anyway.\n\t\t\t\t\tconst indent = next.getAttribute( 'listIndent' );\n\n\t\t\t\t\t// We check if that's item indent is lower as current relative indent.\n\t\t\t\t\tif ( indent < currentIndent ) {\n\t\t\t\t\t\t// If it is, current relative indent becomes that indent.\n\t\t\t\t\t\tcurrentIndent = indent;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Fix indent relatively to current relative indent.\n\t\t\t\t\t// Note, that if we just changed the current relative indent, the newIndent will be equal to 0.\n\t\t\t\t\tconst newIndent = indent - currentIndent;\n\n\t\t\t\t\t// Save the entry in changes array. We do not apply it at the moment, because we will need to\n\t\t\t\t\t// reverse the changes so the last item is changed first.\n\t\t\t\t\t// This is to keep model in correct state all the time.\n\t\t\t\t\tchanges.push( { element: next, listIndent: newIndent } );\n\n\t\t\t\t\t// Find next item.\n\t\t\t\t\tnext = next.nextSibling;\n\t\t\t\t}\n\n\t\t\t\tchanges = changes.reverse();\n\n\t\t\t\tfor ( const item of changes ) {\n\t\t\t\t\twriter.setAttribute( 'listIndent', item.listIndent, item.element );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If we are turning on, we might change some items that are already `listItem`s but with different type.\n\t\t\t// Changing one nested list item to other type should also trigger changing all its siblings so the\n\t\t\t// whole nested list is of the same type.\n\t\t\t// Example (assume changing to numbered list):\n\t\t\t// * ------\t\t\t\t<-- do not fix, top level item\n\t\t\t//   * ------\t\t\t<-- fix, because latter list item of this item's list is changed\n\t\t\t//      * ------\t\t<-- do not fix, item is not affected (different list)\n\t\t\t//   * ------\t\t\t<-- fix, because latter list item of this item's list is changed\n\t\t\t//      * ------\t\t<-- fix, because latter list item of this item's list is changed\n\t\t\t//      * ---[--\t\t<-- already in selection\n\t\t\t//   * ------\t\t\t<-- already in selection\n\t\t\t//   * ------\t\t\t<-- already in selection\n\t\t\t// * ------\t\t\t\t<-- already in selection, but does not cause other list items to change because is top-level\n\t\t\t//   * ---]--\t\t\t<-- already in selection\n\t\t\t//   * ------\t\t\t<-- fix, because preceding list item of this item's list is changed\n\t\t\t//      * ------\t\t<-- do not fix, item is not affected (different list)\n\t\t\t// * ------\t\t\t\t<-- do not fix, top level item\n\t\t\tif ( !turnOff ) {\n\t\t\t\t// Find lowest indent among selected items. This will be indicator what is the indent of\n\t\t\t\t// top-most list affected by the command.\n\t\t\t\tlet lowestIndent = Number.POSITIVE_INFINITY;\n\n\t\t\t\tfor ( const item of blocks ) {\n\t\t\t\t\tif ( item.is( 'element', 'listItem' ) && item.getAttribute( 'listIndent' ) < lowestIndent ) {\n\t\t\t\t\t\tlowestIndent = item.getAttribute( 'listIndent' );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Do not execute the fix for top-level lists.\n\t\t\t\tlowestIndent = lowestIndent === 0 ? 1 : lowestIndent;\n\n\t\t\t\t// Fix types of list items that are \"before\" the selected blocks.\n\t\t\t\t_fixType( blocks, true, lowestIndent );\n\n\t\t\t\t// Fix types of list items that are \"after\" the selected blocks.\n\t\t\t\t_fixType( blocks, false, lowestIndent );\n\t\t\t}\n\n\t\t\t// Phew! Now it will be easier :).\n\t\t\t// For each block element that was in the selection, we will either: turn it to list item,\n\t\t\t// turn it to paragraph, or change it's type. Or leave it as it is.\n\t\t\t// Do it in reverse as there might be multiple blocks (same as with changing indents).\n\t\t\tfor ( const element of blocks.reverse() ) {\n\t\t\t\tif ( turnOff && element.name == 'listItem' ) {\n\t\t\t\t\t// We are turning off and the element is a `listItem` - it should be converted to `paragraph`.\n\t\t\t\t\t// List item specific attributes are removed by post fixer.\n\t\t\t\t\twriter.rename( element, 'paragraph' );\n\t\t\t\t} else if ( !turnOff && element.name != 'listItem' ) {\n\t\t\t\t\t// We are turning on and the element is not a `listItem` - it should be converted to `listItem`.\n\t\t\t\t\t// The order of operations is important to keep model in correct state.\n\t\t\t\t\twriter.setAttributes( { listType: this.type, listIndent: 0 }, element );\n\t\t\t\t\twriter.rename( element, 'listItem' );\n\t\t\t\t} else if ( !turnOff && element.name == 'listItem' && element.getAttribute( 'listType' ) != this.type ) {\n\t\t\t\t\t// We are turning on and the element is a `listItem` but has different type - change it's type and\n\t\t\t\t\t// type of it's all siblings that have same indent.\n\t\t\t\t\twriter.setAttribute( 'listType', this.type, element );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * Event fired by the {@link #execute} method.\n\t\t\t *\n\t\t\t * It allows to execute an action after executing the {@link ~ListCommand#execute} method, for example adjusting\n\t\t\t * attributes of changed blocks.\n\t\t\t *\n\t\t\t * @protected\n\t\t\t * @event _executeCleanup\n\t\t\t */\n\t\t\tthis.fire( '_executeCleanup', blocks );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @private\n\t * @returns {Boolean} The current value.\n\t */\n\t_getValue() {\n\t\t// Check whether closest `listItem` ancestor of the position has a correct type.\n\t\tconst listItem = first( this.editor.model.document.selection.getSelectedBlocks() );\n\n\t\treturn !!listItem && listItem.is( 'element', 'listItem' ) && listItem.getAttribute( 'listType' ) == this.type;\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\t_checkEnabled() {\n\t\t// If command value is true it means that we are in list item, so the command should be enabled.\n\t\tif ( this.value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\tif ( !firstBlock ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Otherwise, check if list item can be inserted at the position start.\n\t\treturn checkCanBecomeListItem( firstBlock, schema );\n\t}\n}\n\n// Helper function used when one or more list item have their type changed. Fixes type of other list items\n// that are affected by the change (are in same lists) but are not directly in selection. The function got extracted\n// not to duplicated code, as same fix has to be performed before and after selection.\n//\n// @param {Array.<module:engine/model/node~Node>} blocks Blocks that are in selection.\n// @param {Boolean} isBackward Specified whether fix will be applied for blocks before first selected block (`true`)\n// or blocks after last selected block (`false`).\n// @param {Number} lowestIndent Lowest indent among selected blocks.\nfunction _fixType( blocks, isBackward, lowestIndent ) {\n\t// We need to check previous sibling of first changed item and next siblings of last changed item.\n\tconst startingItem = isBackward ? blocks[ 0 ] : blocks[ blocks.length - 1 ];\n\n\tif ( startingItem.is( 'element', 'listItem' ) ) {\n\t\tlet item = startingItem[ isBackward ? 'previousSibling' : 'nextSibling' ];\n\t\t// During processing items, keeps the lowest indent of already processed items.\n\t\t// This saves us from changing too many items.\n\t\t// Following example is for going forward as it is easier to read, however same applies to going backward.\n\t\t// * ------\n\t\t//   * ------\n\t\t//     * --[---\n\t\t//   * ------\t\t<-- `lowestIndent` should be 1\n\t\t//     * --]---\t\t<-- `startingItem`, `currentIndent` = 2, `lowestIndent` == 1\n\t\t//     * ------\t\t<-- should be fixed, `indent` == 2 == `currentIndent`\n\t\t//   * ------\t\t<-- should be fixed, set `currentIndent` to 1, `indent` == 1 == `currentIndent`\n\t\t//     * ------\t\t<-- should not be fixed, item is in different list, `indent` = 2, `indent` != `currentIndent`\n\t\t//   * ------\t\t<-- should be fixed, `indent` == 1 == `currentIndent`\n\t\t// * ------\t\t\t<-- break loop (`indent` < `lowestIndent`)\n\t\tlet currentIndent = startingItem.getAttribute( 'listIndent' );\n\n\t\t// Look back until a list item with indent lower than reference `lowestIndent`.\n\t\t// That would be the parent of nested sublist which contains item having `lowestIndent`.\n\t\twhile ( item && item.is( 'element', 'listItem' ) && item.getAttribute( 'listIndent' ) >= lowestIndent ) {\n\t\t\tif ( currentIndent > item.getAttribute( 'listIndent' ) ) {\n\t\t\t\tcurrentIndent = item.getAttribute( 'listIndent' );\n\t\t\t}\n\n\t\t\t// Found an item that is in the same nested sublist.\n\t\t\tif ( item.getAttribute( 'listIndent' ) == currentIndent ) {\n\t\t\t\t// Just add the item to selected blocks like it was selected by the user.\n\t\t\t\tblocks[ isBackward ? 'unshift' : 'push' ]( item );\n\t\t\t}\n\n\t\t\titem = item[ isBackward ? 'previousSibling' : 'nextSibling' ];\n\t\t}\n\t}\n}\n\n// Checks whether the given block can be replaced by a listItem.\n//\n// @private\n// @param {module:engine/model/element~Element} block A block to be tested.\n// @param {module:engine/model/schema~Schema} schema The schema of the document.\n// @returns {Boolean}\nfunction checkCanBecomeListItem( block, schema ) {\n\treturn schema.checkChild( block.parent, 'listItem' ) && !schema.isObject( block );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/indentcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The list indent command. It is used by the {@link module:list/list~List list feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class IndentCommand extends Command {\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor instance.\n\t * @param {'forward'|'backward'} indentDirection The direction of indent. If it is equal to `backward`, the command\n\t * will outdent a list item.\n\t */\n\tconstructor( editor, indentDirection ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * Determines by how much the command will change the list item's indent attribute.\n\t\t *\n\t\t * @readonly\n\t\t * @private\n\t\t * @member {Number}\n\t\t */\n\t\tthis._indentBy = indentDirection == 'forward' ? 1 : -1;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Indents or outdents (depending on the {@link #constructor}'s `indentDirection` parameter) selected list items.\n\t *\n\t * @fires execute\n\t * @fires _executeCleanup\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tlet itemsToChange = Array.from( doc.selection.getSelectedBlocks() );\n\n\t\tmodel.change( writer => {\n\t\t\tconst lastItem = itemsToChange[ itemsToChange.length - 1 ];\n\n\t\t\t// Indenting a list item should also indent all the items that are already sub-items of indented item.\n\t\t\tlet next = lastItem.nextSibling;\n\n\t\t\t// Check all items after last indented item, as long as their indent is bigger than indent of that item.\n\t\t\twhile ( next && next.name == 'listItem' && next.getAttribute( 'listIndent' ) > lastItem.getAttribute( 'listIndent' ) ) {\n\t\t\t\titemsToChange.push( next );\n\n\t\t\t\tnext = next.nextSibling;\n\t\t\t}\n\n\t\t\t// We need to be sure to keep model in correct state after each small change, because converters\n\t\t\t// bases on that state and assumes that model is correct.\n\t\t\t// Because of that, if the command outdents items, we will outdent them starting from the last item, as\n\t\t\t// it is safer.\n\t\t\tif ( this._indentBy < 0 ) {\n\t\t\t\titemsToChange = itemsToChange.reverse();\n\t\t\t}\n\n\t\t\tfor ( const item of itemsToChange ) {\n\t\t\t\tconst indent = item.getAttribute( 'listIndent' ) + this._indentBy;\n\n\t\t\t\t// If indent is lower than 0, it means that the item got outdented when it was not indented.\n\t\t\t\t// This means that we need to convert that list item to paragraph.\n\t\t\t\tif ( indent < 0 ) {\n\t\t\t\t\t// To keep the model as correct as possible, first rename listItem, then remove attributes,\n\t\t\t\t\t// as listItem without attributes is very incorrect and will cause problems in converters.\n\t\t\t\t\t// No need to remove attributes, will be removed by post fixer.\n\t\t\t\t\twriter.rename( item, 'paragraph' );\n\t\t\t\t}\n\t\t\t\t// If indent is >= 0, change the attribute value.\n\t\t\t\telse {\n\t\t\t\t\twriter.setAttribute( 'listIndent', indent, item );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * Event fired by the {@link #execute} method.\n\t\t\t *\n\t\t\t * It allows to execute an action after executing the {@link ~IndentCommand#execute} method, for example adjusting\n\t\t\t * attributes of changed list items.\n\t\t\t *\n\t\t\t * @protected\n\t\t\t * @event _executeCleanup\n\t\t\t */\n\t\t\tthis.fire( '_executeCleanup', itemsToChange );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\t_checkEnabled() {\n\t\t// Check whether any of position's ancestor is a list item.\n\t\tconst listItem = first( this.editor.model.document.selection.getSelectedBlocks() );\n\n\t\t// If selection is not in a list item, the command is disabled.\n\t\tif ( !listItem || !listItem.is( 'element', 'listItem' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this._indentBy > 0 ) {\n\t\t\t// Cannot indent first item in it's list. Check if before `listItem` is a list item that is in same list.\n\t\t\t// To be in the same list, the item has to have same attributes and cannot be \"split\" by an item with lower indent.\n\t\t\tconst indent = listItem.getAttribute( 'listIndent' );\n\t\t\tconst type = listItem.getAttribute( 'listType' );\n\n\t\t\tlet prev = listItem.previousSibling;\n\n\t\t\twhile ( prev && prev.is( 'element', 'listItem' ) && prev.getAttribute( 'listIndent' ) >= indent ) {\n\t\t\t\tif ( prev.getAttribute( 'listIndent' ) == indent ) {\n\t\t\t\t\t// The item is on the same level.\n\t\t\t\t\t// If it has same type, it means that we found a preceding sibling from the same list.\n\t\t\t\t\t// If it does not have same type, it means that `listItem` is on different list (this can happen only\n\t\t\t\t\t// on top level lists, though).\n\t\t\t\t\treturn prev.getAttribute( 'listType' ) == type;\n\t\t\t\t}\n\n\t\t\t\tprev = prev.previousSibling;\n\t\t\t}\n\n\t\t\t// Could not find similar list item, this means that `listItem` is first in its list.\n\t\t\treturn false;\n\t\t}\n\n\t\t// If we are outdenting it is enough to be in list item. Every list item can always be outdented.\n\t\treturn true;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/utils\n */\n\nimport { TreeWalker, getFillerOffset } from 'ckeditor5/src/engine';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\n/**\n * Creates a list item {@link module:engine/view/containerelement~ContainerElement}.\n *\n * @param {module:engine/view/downcastwriter~DowncastWriter} writer The writer instance.\n * @returns {module:engine/view/containerelement~ContainerElement}\n */\nexport function createViewListItemElement( writer ) {\n\tconst viewItem = writer.createContainerElement( 'li' );\n\n\tviewItem.getFillerOffset = getListItemFillerOffset;\n\n\treturn viewItem;\n}\n\n/**\n * Helper function that creates a `<ul><li></li></ul>` or (`<ol>`) structure out of the given `modelItem` model `listItem` element.\n * Then, it binds the created view list item (`<li>`) with the model `listItem` element.\n * The function then returns the created view list item (`<li>`).\n *\n * @param {module:engine/model/item~Item} modelItem Model list item.\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion interface.\n * @returns {module:engine/view/containerelement~ContainerElement} View list element.\n */\nexport function generateLiInUl( modelItem, conversionApi ) {\n\tconst mapper = conversionApi.mapper;\n\tconst viewWriter = conversionApi.writer;\n\tconst listType = modelItem.getAttribute( 'listType' ) == 'numbered' ? 'ol' : 'ul';\n\tconst viewItem = createViewListItemElement( viewWriter );\n\n\tconst viewList = viewWriter.createContainerElement( listType, null );\n\n\tviewWriter.insert( viewWriter.createPositionAt( viewList, 0 ), viewItem );\n\n\tmapper.bindElements( modelItem, viewItem );\n\n\treturn viewItem;\n}\n\n/**\n * Helper function that inserts a view list at a correct place and merges it with its siblings.\n * It takes a model list item element (`modelItem`) and a corresponding view list item element (`injectedItem`). The view list item\n * should be in a view list element (`<ul>` or `<ol>`) and should be its only child.\n * See comments below to better understand the algorithm.\n *\n * @param {module:engine/view/item~Item} modelItem Model list item.\n * @param {module:engine/view/containerelement~ContainerElement} injectedItem\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion interface.\n * @param {module:engine/model/model~Model} model The model instance.\n */\nexport function injectViewList( modelItem, injectedItem, conversionApi, model ) {\n\tconst injectedList = injectedItem.parent;\n\tconst mapper = conversionApi.mapper;\n\tconst viewWriter = conversionApi.writer;\n\n\t// The position where the view list will be inserted.\n\tlet insertPosition = mapper.toViewPosition( model.createPositionBefore( modelItem ) );\n\n\t// 1. Find the previous list item that has the same or smaller indent. Basically we are looking for the first model item\n\t// that is a \"parent\" or \"sibling\" of the injected model item.\n\t// If there is no such list item, it means that the injected list item is the first item in \"its list\".\n\tconst refItem = getSiblingListItem( modelItem.previousSibling, {\n\t\tsameIndent: true,\n\t\tsmallerIndent: true,\n\t\tlistIndent: modelItem.getAttribute( 'listIndent' )\n\t} );\n\tconst prevItem = modelItem.previousSibling;\n\n\tif ( refItem && refItem.getAttribute( 'listIndent' ) == modelItem.getAttribute( 'listIndent' ) ) {\n\t\t// There is a list item with the same indent - we found the same-level sibling.\n\t\t// Break the list after it. The inserted view item will be added in the broken space.\n\t\tconst viewItem = mapper.toViewElement( refItem );\n\t\tinsertPosition = viewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\t} else {\n\t\t// There is no list item with the same indent. Check the previous model item.\n\t\tif ( prevItem && prevItem.name == 'listItem' ) {\n\t\t\t// If it is a list item, it has to have a lower indent.\n\t\t\t// It means that the inserted item should be added to it as its nested item.\n\t\t\tinsertPosition = mapper.toViewPosition( model.createPositionAt( prevItem, 'end' ) );\n\n\t\t\t// There could be some not mapped elements (eg. span in to-do list) but we need to insert\n\t\t\t// a nested list directly inside the li element.\n\t\t\tconst mappedViewAncestor = mapper.findMappedViewAncestor( insertPosition );\n\t\t\tconst nestedList = findNestedList( mappedViewAncestor );\n\n\t\t\t// If there already is some nested list, then use it's position.\n\t\t\tif ( nestedList ) {\n\t\t\t\tinsertPosition = viewWriter.createPositionBefore( nestedList );\n\t\t\t} else {\n\t\t\t\t// Else just put new list on the end of list item content.\n\t\t\t\tinsertPosition = viewWriter.createPositionAt( mappedViewAncestor, 'end' );\n\t\t\t}\n\t\t} else {\n\t\t\t// The previous item is not a list item (or does not exist at all).\n\t\t\t// Just map the position and insert the view item at the mapped position.\n\t\t\tinsertPosition = mapper.toViewPosition( model.createPositionBefore( modelItem ) );\n\t\t}\n\t}\n\n\tinsertPosition = positionAfterUiElements( insertPosition );\n\n\t// Insert the view item.\n\tviewWriter.insert( insertPosition, injectedList );\n\n\t// 2. Handle possible children of the injected model item.\n\tif ( prevItem && prevItem.name == 'listItem' ) {\n\t\tconst prevView = mapper.toViewElement( prevItem );\n\n\t\tconst walkerBoundaries = viewWriter.createRange( viewWriter.createPositionAt( prevView, 0 ), insertPosition );\n\t\tconst walker = walkerBoundaries.getWalker( { ignoreElementEnd: true } );\n\n\t\tfor ( const value of walker ) {\n\t\t\tif ( value.item.is( 'element', 'li' ) ) {\n\t\t\t\tconst breakPosition = viewWriter.breakContainer( viewWriter.createPositionBefore( value.item ) );\n\t\t\t\tconst viewList = value.item.parent;\n\n\t\t\t\tconst targetPosition = viewWriter.createPositionAt( injectedItem, 'end' );\n\t\t\t\tmergeViewLists( viewWriter, targetPosition.nodeBefore, targetPosition.nodeAfter );\n\t\t\t\tviewWriter.move( viewWriter.createRangeOn( viewList ), targetPosition );\n\n\t\t\t\twalker.position = breakPosition;\n\t\t\t}\n\t\t}\n\t} else {\n\t\tconst nextViewList = injectedList.nextSibling;\n\n\t\tif ( nextViewList && ( nextViewList.is( 'element', 'ul' ) || nextViewList.is( 'element', 'ol' ) ) ) {\n\t\t\tlet lastSubChild = null;\n\n\t\t\tfor ( const child of nextViewList.getChildren() ) {\n\t\t\t\tconst modelChild = mapper.toModelElement( child );\n\n\t\t\t\tif ( modelChild && modelChild.getAttribute( 'listIndent' ) > modelItem.getAttribute( 'listIndent' ) ) {\n\t\t\t\t\tlastSubChild = child;\n\t\t\t\t} else {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( lastSubChild ) {\n\t\t\t\tviewWriter.breakContainer( viewWriter.createPositionAfter( lastSubChild ) );\n\t\t\t\tviewWriter.move( viewWriter.createRangeOn( lastSubChild.parent ), viewWriter.createPositionAt( injectedItem, 'end' ) );\n\t\t\t}\n\t\t}\n\t}\n\n\t// Merge the inserted view list with its possible neighbor lists.\n\tmergeViewLists( viewWriter, injectedList, injectedList.nextSibling );\n\tmergeViewLists( viewWriter, injectedList.previousSibling, injectedList );\n}\n\n/**\n * Helper function that takes two parameters that are expected to be view list elements, and merges them.\n * The merge happens only if both parameters are list elements of the same type (the same element name and the same class attributes).\n *\n * @param {module:engine/view/downcastwriter~DowncastWriter} viewWriter The writer instance.\n * @param {module:engine/view/item~Item} firstList The first element to compare.\n * @param {module:engine/view/item~Item} secondList The second element to compare.\n * @returns {module:engine/view/position~Position|null} The position after merge or `null` when there was no merge.\n */\nexport function mergeViewLists( viewWriter, firstList, secondList ) {\n\t// Check if two lists are going to be merged.\n\tif ( !firstList || !secondList || ( firstList.name != 'ul' && firstList.name != 'ol' ) ) {\n\t\treturn null;\n\t}\n\n\t// Both parameters are list elements, so compare types now.\n\tif ( firstList.name != secondList.name || firstList.getAttribute( 'class' ) !== secondList.getAttribute( 'class' ) ) {\n\t\treturn null;\n\t}\n\n\treturn viewWriter.mergeContainers( viewWriter.createPositionAfter( firstList ) );\n}\n\n/**\n * Helper function that for a given `view.Position`, returns a `view.Position` that is after all `view.UIElement`s that\n * are after the given position.\n *\n * For example:\n * `<container:p>foo^<ui:span></ui:span><ui:span></ui:span>bar</container:p>`\n * For position ^, the position before \"bar\" will be returned.\n *\n * @param {module:engine/view/position~Position} viewPosition\n * @returns {module:engine/view/position~Position}\n */\nexport function positionAfterUiElements( viewPosition ) {\n\treturn viewPosition.getLastMatchingPosition( value => value.item.is( 'uiElement' ) );\n}\n\n/**\n * Helper function that searches for a previous list item sibling of a given model item that meets the given criteria\n * passed by the options object.\n *\n * @param {module:engine/model/item~Item} modelItem\n * @param {Object} options Search criteria.\n * @param {Boolean} [options.sameIndent=false] Whether the sought sibling should have the same indentation.\n * @param {Boolean} [options.smallerIndent=false] Whether the sought sibling should have a smaller indentation.\n * @param {Number} [options.listIndent] The reference indentation.\n * @param {'forward'|'backward'} [options.direction='backward'] Walking direction.\n * @returns {module:engine/model/item~Item|null}\n */\nexport function getSiblingListItem( modelItem, options ) {\n\tconst sameIndent = !!options.sameIndent;\n\tconst smallerIndent = !!options.smallerIndent;\n\tconst indent = options.listIndent;\n\n\tlet item = modelItem;\n\n\twhile ( item && item.name == 'listItem' ) {\n\t\tconst itemIndent = item.getAttribute( 'listIndent' );\n\n\t\tif ( ( sameIndent && indent == itemIndent ) || ( smallerIndent && indent > itemIndent ) ) {\n\t\t\treturn item;\n\t\t}\n\n\t\tif ( options.direction === 'forward' ) {\n\t\t\titem = item.nextSibling;\n\t\t} else {\n\t\t\titem = item.previousSibling;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Helper method for creating a UI button and linking it with an appropriate command.\n *\n * @private\n * @param {module:core/editor/editor~Editor} editor The editor instance to which the UI component will be added.\n * @param {String} commandName The name of the command.\n * @param {String} label The button label.\n * @param {String} icon The source of the icon.\n */\nexport function createUIComponent( editor, commandName, label, icon ) {\n\teditor.ui.componentFactory.add( commandName, locale => {\n\t\tconst command = editor.commands.get( commandName );\n\t\tconst buttonView = new ButtonView( locale );\n\n\t\tbuttonView.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true,\n\t\t\tisToggleable: true\n\t\t} );\n\n\t\t// Bind button model to command.\n\t\tbuttonView.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t// Execute command.\n\t\tbuttonView.on( 'execute', () => {\n\t\t\teditor.execute( commandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn buttonView;\n\t} );\n}\n\n/**\n * Returns a first list view element that is direct child of the given view element.\n *\n * @param {module:engine/view/element~Element} viewElement\n * @return {module:engine/view/element~Element|null}\n */\nexport function findNestedList( viewElement ) {\n\tfor ( const node of viewElement.getChildren() ) {\n\t\tif ( node.name == 'ul' || node.name == 'ol' ) {\n\t\t\treturn node;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns an array with all `listItem` elements that represent the same list.\n *\n * It means that values of `listIndent`, `listType`, `listStyle`, `listReversed` and `listStart` for all items are equal.\n *\n * Additionally, if the `position` is inside a list item, that list item will be returned as well.\n *\n * @param {module:engine/model/position~Position} position Starting position.\n * @param {'forward'|'backward'} direction Walking direction.\n * @returns {Array.<module:engine/model/element~Element>}\n */\nexport function getSiblingNodes( position, direction ) {\n\tconst items = [];\n\tconst listItem = position.parent;\n\tconst walkerOptions = {\n\t\tignoreElementEnd: false,\n\t\tstartPosition: position,\n\t\tshallow: true,\n\t\tdirection\n\t};\n\tconst limitIndent = listItem.getAttribute( 'listIndent' );\n\tconst nodes = [ ...new TreeWalker( walkerOptions ) ]\n\t\t.filter( value => value.item.is( 'element' ) )\n\t\t.map( value => value.item );\n\n\tfor ( const element of nodes ) {\n\t\t// If found something else than `listItem`, we're out of the list scope.\n\t\tif ( !element.is( 'element', 'listItem' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// If current parsed item has lower indent that element that the element that was a starting point,\n\t\t// it means we left a nested list. Abort searching items.\n\t\t//\n\t\t// ■ List item 1.       [listIndent=0]\n\t\t//     ○ List item 2.[] [listIndent=1], limitIndent = 1,\n\t\t//     ○ List item 3.   [listIndent=1]\n\t\t// ■ List item 4.       [listIndent=0]\n\t\t//\n\t\t// Abort searching when leave nested list.\n\t\tif ( element.getAttribute( 'listIndent' ) < limitIndent ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ■ List item 1.[]     [listIndent=0] limitIndent = 0,\n\t\t//     ○ List item 2.   [listIndent=1]\n\t\t//     ○ List item 3.   [listIndent=1]\n\t\t// ■ List item 4.       [listIndent=0]\n\t\t//\n\t\t// Ignore nested lists.\n\t\tif ( element.getAttribute( 'listIndent' ) > limitIndent ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// ■ List item 1.[]  [listType=bulleted]\n\t\t// 1. List item 2.   [listType=numbered]\n\t\t// 2.List item 3.    [listType=numbered]\n\t\t//\n\t\t// Abort searching when found a different kind of a list.\n\t\tif ( element.getAttribute( 'listType' ) !== listItem.getAttribute( 'listType' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ■ List item 1.[]  [listType=bulleted]\n\t\t// ■ List item 2.    [listType=bulleted]\n\t\t// ○ List item 3.    [listType=bulleted]\n\t\t// ○ List item 4.    [listType=bulleted]\n\t\t//\n\t\t// Abort searching when found a different list style,\n\t\tif ( element.getAttribute( 'listStyle' ) !== listItem.getAttribute( 'listStyle' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ... different direction\n\t\tif ( element.getAttribute( 'listReversed' ) !== listItem.getAttribute( 'listReversed' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ... and different start index\n\t\tif ( element.getAttribute( 'listStart' ) !== listItem.getAttribute( 'listStart' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\tif ( direction === 'backward' ) {\n\t\t\titems.unshift( element );\n\t\t} else {\n\t\t\titems.push( element );\n\t\t}\n\t}\n\n\treturn items;\n}\n\n/**\n * Returns an array with all `listItem` elements in the model selection.\n *\n * It returns all the items even if only a part of the list is selected, including items that belong to nested lists.\n * If no list is selected, it returns an empty array.\n * The order of the elements is not specified.\n *\n * @protected\n * @param {module:engine/model/model~Model} model\n * @returns {Array.<module:engine/model/element~Element>}\n */\nexport function getSelectedListItems( model ) {\n\tconst document = model.document;\n\n\t// For all selected blocks find all list items that are being selected\n\t// and update the `listStyle` attribute in those lists.\n\tlet listItems = [ ...document.selection.getSelectedBlocks() ]\n\t\t.filter( element => element.is( 'element', 'listItem' ) )\n\t\t.map( element => {\n\t\t\tconst position = model.change( writer => writer.createPositionAt( element, 0 ) );\n\n\t\t\treturn [\n\t\t\t\t...getSiblingNodes( position, 'backward' ),\n\t\t\t\t...getSiblingNodes( position, 'forward' )\n\t\t\t];\n\t\t} )\n\t\t.flat();\n\n\t// Since `getSelectedBlocks()` can return items that belong to the same list, and\n\t// `getSiblingNodes()` returns the entire list, we need to remove duplicated items.\n\tlistItems = [ ...new Set( listItems ) ];\n\n\treturn listItems;\n}\n\nconst BULLETED_LIST_STYLE_TYPES = [ 'disc', 'circle', 'square' ];\n\n// There's a lot of them (https://www.w3.org/TR/css-counter-styles-3/#typedef-counter-style).\n// Let's support only those that can be selected by ListPropertiesUI.\nconst NUMBERED_LIST_STYLE_TYPES = [\n\t'decimal',\n\t'decimal-leading-zero',\n\t'lower-roman',\n\t'upper-roman',\n\t'lower-latin',\n\t'upper-latin'\n];\n\n/**\n * Checks whether the given list-style-type is supported by numbered or bulleted list.\n *\n * @param {String} listStyleType\n * @returns {'bulleted'|'numbered'|null}\n */\nexport function getListTypeFromListStyleType( listStyleType ) {\n\tif ( BULLETED_LIST_STYLE_TYPES.includes( listStyleType ) ) {\n\t\treturn 'bulleted';\n\t}\n\n\tif ( NUMBERED_LIST_STYLE_TYPES.includes( listStyleType ) ) {\n\t\treturn 'numbered';\n\t}\n\n\treturn null;\n}\n\n// Implementation of getFillerOffset for view list item element.\n//\n// @returns {Number|null} Block filler offset or `null` if block filler is not needed.\nfunction getListItemFillerOffset() {\n\tconst hasOnlyLists = !this.isEmpty && ( this.getChild( 0 ).name == 'ul' || this.getChild( 0 ).name == 'ol' );\n\n\tif ( this.isEmpty || hasOnlyLists ) {\n\t\treturn 0;\n\t}\n\n\treturn getFillerOffset.call( this );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listutils\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport {\n\tgetListTypeFromListStyleType,\n\tgetSelectedListItems,\n\tgetSiblingNodes\n} from './utils';\n\n/**\n * A set of helpers related to document lists.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ListUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ListUtils';\n\t}\n\n\t/**\n\t * Checks whether the given list-style-type is supported by numbered or bulleted list.\n\t *\n\t * @param {String} listStyleType\n\t * @returns {'bulleted'|'numbered'|null}\n\t */\n\tgetListTypeFromListStyleType( listStyleType ) {\n\t\treturn getListTypeFromListStyleType( listStyleType );\n\t}\n\n\t/**\n\t * Returns an array with all `listItem` elements in the model selection.\n\t *\n\t * It returns all the items even if only a part of the list is selected, including items that belong to nested lists.\n\t * If no list is selected, it returns an empty array.\n\t * The order of the elements is not specified.\n\t *\n\t * @param {module:engine/model/model~Model} model\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\tgetSelectedListItems( model ) {\n\t\treturn getSelectedListItems( model );\n\t}\n\n\t/**\n\t * Returns an array with all `listItem` elements that represent the same list.\n\t *\n\t * It means that values of `listIndent`, `listType`, `listStyle`, `listReversed` and `listStart` for all items are equal.\n\t *\n\t * Additionally, if the `position` is inside a list item, that list item will be returned as well.\n\t *\n\t * @param {module:engine/model/position~Position} position Starting position.\n\t * @param {'forward'|'backward'} direction Walking direction.\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\tgetSiblingNodes( position, direction ) {\n\t\treturn getSiblingNodes( position, direction );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/converters\n */\n\nimport { TreeWalker } from 'ckeditor5/src/engine';\n\nimport {\n\tgenerateLiInUl,\n\tinjectViewList,\n\tmergeViewLists,\n\tgetSiblingListItem,\n\tpositionAfterUiElements\n} from './utils';\n\n/**\n * A model-to-view converter for the `listItem` model element insertion.\n *\n * It creates a `<ul><li></li><ul>` (or `<ol>`) view structure out of a `listItem` model element, inserts it at the correct\n * position, and merges the list with surrounding lists (if available).\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n * @param {module:engine/model/model~Model} model Model instance.\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelViewInsertion( model ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst consumable = conversionApi.consumable;\n\n\t\tif ( !consumable.test( data.item, 'insert' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listType' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listIndent' )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tconsumable.consume( data.item, 'insert' );\n\t\tconsumable.consume( data.item, 'attribute:listType' );\n\t\tconsumable.consume( data.item, 'attribute:listIndent' );\n\n\t\tconst modelItem = data.item;\n\t\tconst viewItem = generateLiInUl( modelItem, conversionApi );\n\n\t\tinjectViewList( modelItem, viewItem, conversionApi, model );\n\t};\n}\n\n/**\n * A model-to-view converter for the `listItem` model element removal.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:remove\n * @param {module:engine/model/model~Model} model Model instance.\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelViewRemove( model ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.position );\n\t\tconst viewStart = viewPosition.getLastMatchingPosition( value => !value.item.is( 'element', 'li' ) );\n\t\tconst viewItem = viewStart.nodeAfter;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// 1. Break the container after and before the list item.\n\t\t// This will create a view list with one view list item - the one to remove.\n\t\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\t\tviewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\n\t\t// 2. Remove the list with the item to remove.\n\t\tconst viewList = viewItem.parent;\n\t\tconst viewListPrev = viewList.previousSibling;\n\t\tconst removeRange = viewWriter.createRangeOn( viewList );\n\t\tconst removed = viewWriter.remove( removeRange );\n\n\t\t// 3. Merge the whole created by breaking and removing the list.\n\t\tif ( viewListPrev && viewListPrev.nextSibling ) {\n\t\t\tmergeViewLists( viewWriter, viewListPrev, viewListPrev.nextSibling );\n\t\t}\n\n\t\t// 4. Bring back nested list that was in the removed <li>.\n\t\tconst modelItem = conversionApi.mapper.toModelElement( viewItem );\n\n\t\thoistNestedLists( modelItem.getAttribute( 'listIndent' ) + 1, data.position, removeRange.start, viewItem, conversionApi, model );\n\n\t\t// 5. Unbind removed view item and all children.\n\t\tfor ( const child of viewWriter.createRangeIn( removed ).getItems() ) {\n\t\t\tconversionApi.mapper.unbindViewElement( child );\n\t\t}\n\n\t\tevt.stop();\n\t};\n}\n\n/**\n * A model-to-view converter for the `type` attribute change on the `listItem` model element.\n *\n * This change means that the `<li>` element parent changes from `<ul>` to `<ol>` (or vice versa). This is accomplished\n * by breaking view elements and changing their name. The next {@link module:list/list/converters~modelViewMergeAfterChangeType}\n * converter will attempt to merge split nodes.\n *\n * Splitting this conversion into 2 steps makes it possible to add an additional conversion in the middle.\n * Check {@link module:list/todolist/todolistconverters~modelViewChangeType} to see an example of it.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data Additional information about the change.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface.\n */\nexport function modelViewChangeType( evt, data, conversionApi ) {\n\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\treturn;\n\t}\n\n\tconst viewItem = conversionApi.mapper.toViewElement( data.item );\n\tconst viewWriter = conversionApi.writer;\n\n\t// Break the container after and before the list item.\n\t// This will create a view list with one view list item -- the one that changed type.\n\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\tviewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\n\t// Change name of the view list that holds the changed view item.\n\t// We cannot just change name property, because that would not render properly.\n\tconst viewList = viewItem.parent;\n\tconst listName = data.attributeNewValue == 'numbered' ? 'ol' : 'ul';\n\n\tviewWriter.rename( listName, viewList );\n}\n\n/**\n * A model-to-view converter that attempts to merge nodes split by {@link module:list/list/converters~modelViewChangeType}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data Additional information about the change.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface.\n */\nexport function modelViewMergeAfterChangeType( evt, data, conversionApi ) {\n\tconversionApi.consumable.consume( data.item, evt.name );\n\n\tconst viewItem = conversionApi.mapper.toViewElement( data.item );\n\tconst viewList = viewItem.parent;\n\tconst viewWriter = conversionApi.writer;\n\n\t// Merge the changed view list with other lists, if possible.\n\tmergeViewLists( viewWriter, viewList, viewList.nextSibling );\n\tmergeViewLists( viewWriter, viewList.previousSibling, viewList );\n}\n\n/**\n * A model-to-view converter for the `listIndent` attribute change on the `listItem` model element.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param {module:engine/model/model~Model} model Model instance.\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelViewChangeIndent( model ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, 'attribute:listIndent' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewItem = conversionApi.mapper.toViewElement( data.item );\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// 1. Break the container after and before the list item.\n\t\t// This will create a view list with one view list item -- the one that changed type.\n\t\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\t\tviewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\n\t\t// 2. Extract view list with changed view list item and merge \"hole\" possibly created by breaking and removing elements.\n\t\tconst viewList = viewItem.parent;\n\t\tconst viewListPrev = viewList.previousSibling;\n\t\tconst removeRange = viewWriter.createRangeOn( viewList );\n\t\tviewWriter.remove( removeRange );\n\n\t\tif ( viewListPrev && viewListPrev.nextSibling ) {\n\t\t\tmergeViewLists( viewWriter, viewListPrev, viewListPrev.nextSibling );\n\t\t}\n\n\t\t// 3. Bring back nested list that was in the removed <li>.\n\t\thoistNestedLists( data.attributeOldValue + 1, data.range.start, removeRange.start, viewItem, conversionApi, model );\n\n\t\t// 4. Inject view list like it is newly inserted.\n\t\tinjectViewList( data.item, viewItem, conversionApi, model );\n\n\t\t// 5. Consume insertion of children inside the item. They are already handled by re-building the item in view.\n\t\tfor ( const child of data.item.getChildren() ) {\n\t\t\tconversionApi.consumable.consume( child, 'insert' );\n\t\t}\n\t};\n}\n\n/**\n * A special model-to-view converter introduced by the {@link module:list/list~List list feature}. This converter is fired for\n * insert change of every model item, and should be fired before the actual converter. The converter checks whether the inserted\n * model item is a non-`listItem` element. If it is, and it is inserted inside a view list, the converter breaks the\n * list so the model element is inserted to the view parent element corresponding to its model parent element.\n *\n * The converter prevents such situations:\n *\n *\t\t// Model:                        // View:\n *\t\t<listItem>foo</listItem>         <ul>\n *\t\t<listItem>bar</listItem>             <li>foo</li>\n *\t\t                                     <li>bar</li>\n *\t\t                                 </ul>\n *\n *\t\t// After change:                 // Correct view guaranteed by this converter:\n *\t\t<listItem>foo</listItem>         <ul><li>foo</li></ul><p>xxx</p><ul><li>bar</li></ul>\n *\t\t<paragraph>xxx</paragraph>       // Instead of this wrong view state:\n *\t\t<listItem>bar</listItem>         <ul><li>foo</li><p>xxx</p><li>bar</li></ul>\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data Additional information about the change.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface.\n */\nexport function modelViewSplitOnInsert( evt, data, conversionApi ) {\n\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\treturn;\n\t}\n\n\tif ( data.item.name != 'listItem' ) {\n\t\tlet viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst lists = [];\n\n\t\t// Break multiple ULs/OLs if there are.\n\t\t//\n\t\t// Imagine following list:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//     1.1.1 --------\n\t\t//     1.1.2 --------\n\t\t//     1.1.3 --------\n\t\t//       1.1.3.1 --------\n\t\t//   1.2 --------\n\t\t//     1.2.1 --------\n\t\t// 2 --------\n\t\t//\n\t\t// Insert paragraph after item 1.1.1:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//     1.1.1 --------\n\t\t//\n\t\t// Lorem ipsum.\n\t\t//\n\t\t//     1.1.2 --------\n\t\t//     1.1.3 --------\n\t\t//       1.1.3.1 --------\n\t\t//   1.2 --------\n\t\t//     1.2.1 --------\n\t\t// 2 --------\n\t\t//\n\t\t// In this case 1.1.2 has to become beginning of a new list.\n\t\t// We need to break list before 1.1.2 (obvious), then we need to break list also before 1.2.\n\t\t// Then we need to move those broken pieces one after another and merge:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//     1.1.1 --------\n\t\t//\n\t\t// Lorem ipsum.\n\t\t//\n\t\t// 1.1.2 --------\n\t\t//   1.1.3 --------\n\t\t//     1.1.3.1 --------\n\t\t// 1.2 --------\n\t\t//   1.2.1 --------\n\t\t// 2 --------\n\t\t//\n\t\twhile ( viewPosition.parent.name == 'ul' || viewPosition.parent.name == 'ol' ) {\n\t\t\tviewPosition = viewWriter.breakContainer( viewPosition );\n\n\t\t\tif ( viewPosition.parent.name != 'li' ) {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Remove lists that are after inserted element.\n\t\t\t// They will be brought back later, below the inserted element.\n\t\t\tconst removeStart = viewPosition;\n\t\t\tconst removeEnd = viewWriter.createPositionAt( viewPosition.parent, 'end' );\n\n\t\t\t// Don't remove if there is nothing to remove.\n\t\t\tif ( !removeStart.isEqual( removeEnd ) ) {\n\t\t\t\tconst removed = viewWriter.remove( viewWriter.createRange( removeStart, removeEnd ) );\n\t\t\t\tlists.push( removed );\n\t\t\t}\n\n\t\t\tviewPosition = viewWriter.createPositionAfter( viewPosition.parent );\n\t\t}\n\n\t\t// Bring back removed lists.\n\t\tif ( lists.length > 0 ) {\n\t\t\tfor ( let i = 0; i < lists.length; i++ ) {\n\t\t\t\tconst previousList = viewPosition.nodeBefore;\n\t\t\t\tconst insertedRange = viewWriter.insert( viewPosition, lists[ i ] );\n\t\t\t\tviewPosition = insertedRange.end;\n\n\t\t\t\t// Don't merge first list! We want a split in that place (this is why this converter is introduced).\n\t\t\t\tif ( i > 0 ) {\n\t\t\t\t\tconst mergePos = mergeViewLists( viewWriter, previousList, previousList.nextSibling );\n\n\t\t\t\t\t// If `mergePos` is in `previousList` it means that the lists got merged.\n\t\t\t\t\t// In this case, we need to fix insert position.\n\t\t\t\t\tif ( mergePos && mergePos.parent == previousList ) {\n\t\t\t\t\t\tviewPosition.offset--;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Merge last inserted list with element after it.\n\t\t\tmergeViewLists( viewWriter, viewPosition.nodeBefore, viewPosition.nodeAfter );\n\t\t}\n\t}\n}\n\n/**\n * A special model-to-view converter introduced by the {@link module:list/list~List list feature}. This converter takes care of\n * merging view lists after something is removed or moved from near them.\n *\n * Example:\n *\n *\t\t// Model:                        // View:\n *\t\t<listItem>foo</listItem>         <ul><li>foo</li></ul>\n *\t\t<paragraph>xxx</paragraph>       <p>xxx</p>\n *\t\t<listItem>bar</listItem>         <ul><li>bar</li></ul>\n *\n *\t\t// After change:                 // Correct view guaranteed by this converter:\n *\t\t<listItem>foo</listItem>         <ul>\n *\t\t<listItem>bar</listItem>             <li>foo</li>\n *\t\t                                     <li>bar</li>\n *\t\t                                 </ul>\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:remove\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data Additional information about the change.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface.\n */\nexport function modelViewMergeAfter( evt, data, conversionApi ) {\n\tconst viewPosition = conversionApi.mapper.toViewPosition( data.position );\n\tconst viewItemPrev = viewPosition.nodeBefore;\n\tconst viewItemNext = viewPosition.nodeAfter;\n\n\t// Merge lists if something (remove, move) was done from inside of list.\n\t// Merging will be done only if both items are view lists of the same type.\n\t// The check is done inside the helper function.\n\tmergeViewLists( conversionApi.writer, viewItemPrev, viewItemNext );\n}\n\n/**\n * A view-to-model converter that converts the `<li>` view elements into the `listItem` model elements.\n *\n * To set correct values of the `listType` and `listIndent` attributes the converter:\n * * checks `<li>`'s parent,\n * * stores and increases the `conversionApi.store.indent` value when `<li>`'s sub-items are converted.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data An object containing conversion input and a placeholder for conversion output and possibly other values.\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion interface to be used by the callback.\n */\nexport function viewModelConverter( evt, data, conversionApi ) {\n\tif ( conversionApi.consumable.consume( data.viewItem, { name: true } ) ) {\n\t\tconst writer = conversionApi.writer;\n\n\t\t// 1. Create `listItem` model element.\n\t\tconst listItem = writer.createElement( 'listItem' );\n\n\t\t// 2. Handle `listItem` model element attributes.\n\t\tconst indent = getIndent( data.viewItem );\n\n\t\twriter.setAttribute( 'listIndent', indent, listItem );\n\n\t\t// Set 'bulleted' as default. If this item is pasted into a context,\n\t\tconst type = data.viewItem.parent && data.viewItem.parent.name == 'ol' ? 'numbered' : 'bulleted';\n\t\twriter.setAttribute( 'listType', type, listItem );\n\n\t\tif ( !conversionApi.safeInsert( listItem, data.modelCursor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst nextPosition = viewToModelListItemChildrenConverter( listItem, data.viewItem.getChildren(), conversionApi );\n\n\t\t// Result range starts before the first item and ends after the last.\n\t\tdata.modelRange = writer.createRange( data.modelCursor, nextPosition );\n\n\t\tconversionApi.updateConversionResult( listItem, data );\n\t}\n}\n\n/**\n * A view-to-model converter for the `<ul>` and `<ol>` view elements that cleans the input view of garbage.\n * This is mostly to clean whitespaces from between the `<li>` view elements inside the view list element, however, also\n * incorrect data can be cleared if the view was incorrect.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data An object containing conversion input and a placeholder for conversion output and possibly other values.\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion interface to be used by the callback.\n */\nexport function cleanList( evt, data, conversionApi ) {\n\tif ( conversionApi.consumable.test( data.viewItem, { name: true } ) ) {\n\t\t// Caching children because when we start removing them iterating fails.\n\t\tconst children = Array.from( data.viewItem.getChildren() );\n\n\t\tfor ( const child of children ) {\n\t\t\tconst isWrongElement = !( child.is( 'element', 'li' ) || isList( child ) );\n\n\t\t\tif ( isWrongElement ) {\n\t\t\t\tchild._remove();\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * A view-to-model converter for the `<li>` elements that cleans whitespace formatting from the input view.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data An object containing conversion input and a placeholder for conversion output and possibly other values.\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion interface to be used by the callback.\n */\nexport function cleanListItem( evt, data, conversionApi ) {\n\tif ( conversionApi.consumable.test( data.viewItem, { name: true } ) ) {\n\t\tif ( data.viewItem.childCount === 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst children = [ ...data.viewItem.getChildren() ];\n\n\t\tlet foundList = false;\n\n\t\tfor ( const child of children ) {\n\t\t\tif ( foundList && !isList( child ) ) {\n\t\t\t\tchild._remove();\n\t\t\t}\n\n\t\t\tif ( isList( child ) ) {\n\t\t\t\t// If this is a <ul> or <ol>, do not process it, just mark that we already visited list element.\n\t\t\t\tfoundList = true;\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Returns a callback for model position to view position mapping for {@link module:engine/conversion/mapper~Mapper}. The callback fixes\n * positions between the `listItem` elements that would be incorrectly mapped because of how list items are represented in the model\n * and in the view.\n *\n * @see module:engine/conversion/mapper~Mapper#event:modelToViewPosition\n * @param {module:engine/view/view~View} view A view instance.\n * @returns {Function}\n */\nexport function modelToViewPosition( view ) {\n\treturn ( evt, data ) => {\n\t\tif ( data.isPhantom ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelItem = data.modelPosition.nodeBefore;\n\n\t\tif ( modelItem && modelItem.is( 'element', 'listItem' ) ) {\n\t\t\tconst viewItem = data.mapper.toViewElement( modelItem );\n\t\t\tconst topmostViewList = viewItem.getAncestors().find( isList );\n\t\t\tconst walker = view.createPositionAt( viewItem, 0 ).getWalker();\n\n\t\t\tfor ( const value of walker ) {\n\t\t\t\tif ( value.type == 'elementStart' && value.item.is( 'element', 'li' ) ) {\n\t\t\t\t\tdata.viewPosition = value.previousPosition;\n\n\t\t\t\t\tbreak;\n\t\t\t\t} else if ( value.type == 'elementEnd' && value.item == topmostViewList ) {\n\t\t\t\t\tdata.viewPosition = value.nextPosition;\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * The callback for view position to model position mapping for {@link module:engine/conversion/mapper~Mapper}. The callback fixes\n * positions between the `<li>` elements that would be incorrectly mapped because of how list items are represented in the model\n * and in the view.\n *\n * @see module:engine/conversion/mapper~Mapper#event:viewToModelPosition\n * @param {module:engine/model/model~Model} model Model instance.\n * @returns {Function} Returns a conversion callback.\n */\nexport function viewToModelPosition( model ) {\n\treturn ( evt, data ) => {\n\t\tconst viewPos = data.viewPosition;\n\t\tconst viewParent = viewPos.parent;\n\t\tconst mapper = data.mapper;\n\n\t\tif ( viewParent.name == 'ul' || viewParent.name == 'ol' ) {\n\t\t\t// Position is directly in <ul> or <ol>.\n\t\t\tif ( !viewPos.isAtEnd ) {\n\t\t\t\t// If position is not at the end, it must be before <li>.\n\t\t\t\t// Get that <li>, map it to `listItem` and set model position before that `listItem`.\n\t\t\t\tconst modelNode = mapper.toModelElement( viewPos.nodeAfter );\n\n\t\t\t\tdata.modelPosition = model.createPositionBefore( modelNode );\n\t\t\t} else {\n\t\t\t\t// Position is at the end of <ul> or <ol>, so there is no <li> after it to be mapped.\n\t\t\t\t// There is <li> before the position, but we cannot just map it to `listItem` and set model position after it,\n\t\t\t\t// because that <li> may contain nested items.\n\t\t\t\t// We will check \"model length\" of that <li>, in other words - how many `listItem`s are in that <li>.\n\t\t\t\tconst modelNode = mapper.toModelElement( viewPos.nodeBefore );\n\t\t\t\tconst modelLength = mapper.getModelLength( viewPos.nodeBefore );\n\n\t\t\t\t// Then we get model position before mapped `listItem` and shift it accordingly.\n\t\t\t\tdata.modelPosition = model.createPositionBefore( modelNode ).getShiftedBy( modelLength );\n\t\t\t}\n\n\t\t\tevt.stop();\n\t\t} else if (\n\t\t\tviewParent.name == 'li' &&\n\t\t\tviewPos.nodeBefore &&\n\t\t\t( viewPos.nodeBefore.name == 'ul' || viewPos.nodeBefore.name == 'ol' )\n\t\t) {\n\t\t\t// In most cases when view position is in <li> it is in text and this is a correct position.\n\t\t\t// However, if position is after <ul> or <ol> we have to fix it -- because in model <ul>/<ol> are not in the `listItem`.\n\t\t\tconst modelNode = mapper.toModelElement( viewParent );\n\n\t\t\t// Check all <ul>s and <ol>s that are in the <li> but before mapped position.\n\t\t\t// Get model length of those elements and then add it to the offset of `listItem` mapped to the original <li>.\n\t\t\tlet modelLength = 1; // Starts from 1 because the original <li> has to be counted in too.\n\t\t\tlet viewList = viewPos.nodeBefore;\n\n\t\t\twhile ( viewList && isList( viewList ) ) {\n\t\t\t\tmodelLength += mapper.getModelLength( viewList );\n\n\t\t\t\tviewList = viewList.previousSibling;\n\t\t\t}\n\n\t\t\tdata.modelPosition = model.createPositionBefore( modelNode ).getShiftedBy( modelLength );\n\n\t\t\tevt.stop();\n\t\t}\n\t};\n}\n\n/**\n * Post-fixer that reacts to changes on document and fixes incorrect model states.\n *\n * In the example below, there is a correct list structure.\n * Then the middle element is removed so the list structure will become incorrect:\n *\n *\t\t<listItem listType=\"bulleted\" listIndent=0>Item 1</listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=1>Item 2</listItem>   <--- this is removed.\n *\t\t<listItem listType=\"bulleted\" listIndent=2>Item 3</listItem>\n *\n * The list structure after the middle element is removed:\n *\n * \t\t<listItem listType=\"bulleted\" listIndent=0>Item 1</listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=2>Item 3</listItem>\n *\n * Should become:\n *\n *\t\t<listItem listType=\"bulleted\" listIndent=0>Item 1</listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=1>Item 3</listItem>   <--- note that indent got post-fixed.\n *\n * @param {module:engine/model/model~Model} model The data model.\n * @param {module:engine/model/writer~Writer} writer The writer to do changes with.\n * @returns {Boolean} `true` if any change has been applied, `false` otherwise.\n */\nexport function modelChangePostFixer( model, writer ) {\n\tconst changes = model.document.differ.getChanges();\n\tconst itemToListHead = new Map();\n\n\tlet applied = false;\n\n\tfor ( const entry of changes ) {\n\t\tif ( entry.type == 'insert' && entry.name == 'listItem' ) {\n\t\t\t_addListToFix( entry.position );\n\t\t} else if ( entry.type == 'insert' && entry.name != 'listItem' ) {\n\t\t\tif ( entry.name != '$text' ) {\n\t\t\t\t// In case of renamed element.\n\t\t\t\tconst item = entry.position.nodeAfter;\n\n\t\t\t\tif ( item.hasAttribute( 'listIndent' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listIndent', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listType' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listType', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listStyle' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listStyle', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listReversed' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listReversed', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listStart' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listStart', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tfor ( const innerItem of Array.from( model.createRangeIn( item ) ).filter( e => e.item.is( 'element', 'listItem' ) ) ) {\n\t\t\t\t\t_addListToFix( innerItem.previousPosition );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst posAfter = entry.position.getShiftedBy( entry.length );\n\n\t\t\t_addListToFix( posAfter );\n\t\t} else if ( entry.type == 'remove' && entry.name == 'listItem' ) {\n\t\t\t_addListToFix( entry.position );\n\t\t} else if ( entry.type == 'attribute' && entry.attributeKey == 'listIndent' ) {\n\t\t\t_addListToFix( entry.range.start );\n\t\t} else if ( entry.type == 'attribute' && entry.attributeKey == 'listType' ) {\n\t\t\t_addListToFix( entry.range.start );\n\t\t}\n\t}\n\n\tfor ( const listHead of itemToListHead.values() ) {\n\t\t_fixListIndents( listHead );\n\t\t_fixListTypes( listHead );\n\t}\n\n\treturn applied;\n\n\tfunction _addListToFix( position ) {\n\t\tconst previousNode = position.nodeBefore;\n\n\t\tif ( !previousNode || !previousNode.is( 'element', 'listItem' ) ) {\n\t\t\tconst item = position.nodeAfter;\n\n\t\t\tif ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\t\titemToListHead.set( item, item );\n\t\t\t}\n\t\t} else {\n\t\t\tlet listHead = previousNode;\n\n\t\t\tif ( itemToListHead.has( listHead ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tfor (\n\t\t\t\t// Cache previousSibling and reuse for performance reasons. See #6581.\n\t\t\t\tlet previousSibling = listHead.previousSibling;\n\t\t\t\tpreviousSibling && previousSibling.is( 'element', 'listItem' );\n\t\t\t\tpreviousSibling = listHead.previousSibling\n\t\t\t) {\n\t\t\t\tlistHead = previousSibling;\n\n\t\t\t\tif ( itemToListHead.has( listHead ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\titemToListHead.set( previousNode, listHead );\n\t\t}\n\t}\n\n\tfunction _fixListIndents( item ) {\n\t\tlet maxIndent = 0;\n\t\tlet fixBy = null;\n\n\t\twhile ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\tconst itemIndent = item.getAttribute( 'listIndent' );\n\n\t\t\tif ( itemIndent > maxIndent ) {\n\t\t\t\tlet newIndent;\n\n\t\t\t\tif ( fixBy === null ) {\n\t\t\t\t\tfixBy = itemIndent - maxIndent;\n\t\t\t\t\tnewIndent = maxIndent;\n\t\t\t\t} else {\n\t\t\t\t\tif ( fixBy > itemIndent ) {\n\t\t\t\t\t\tfixBy = itemIndent;\n\t\t\t\t\t}\n\n\t\t\t\t\tnewIndent = itemIndent - fixBy;\n\t\t\t\t}\n\n\t\t\t\twriter.setAttribute( 'listIndent', newIndent, item );\n\n\t\t\t\tapplied = true;\n\t\t\t} else {\n\t\t\t\tfixBy = null;\n\t\t\t\tmaxIndent = item.getAttribute( 'listIndent' ) + 1;\n\t\t\t}\n\n\t\t\titem = item.nextSibling;\n\t\t}\n\t}\n\n\tfunction _fixListTypes( item ) {\n\t\tlet typesStack = [];\n\t\tlet prev = null;\n\n\t\twhile ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\tconst itemIndent = item.getAttribute( 'listIndent' );\n\n\t\t\tif ( prev && prev.getAttribute( 'listIndent' ) > itemIndent ) {\n\t\t\t\ttypesStack = typesStack.slice( 0, itemIndent + 1 );\n\t\t\t}\n\n\t\t\tif ( itemIndent != 0 ) {\n\t\t\t\tif ( typesStack[ itemIndent ] ) {\n\t\t\t\t\tconst type = typesStack[ itemIndent ];\n\n\t\t\t\t\tif ( item.getAttribute( 'listType' ) != type ) {\n\t\t\t\t\t\twriter.setAttribute( 'listType', type, item );\n\n\t\t\t\t\t\tapplied = true;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\ttypesStack[ itemIndent ] = item.getAttribute( 'listType' );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tprev = item;\n\t\t\titem = item.nextSibling;\n\t\t}\n\t}\n}\n\n/**\n * A fixer for pasted content that includes list items.\n *\n * It fixes indentation of pasted list items so the pasted items match correctly to the context they are pasted into.\n *\n * Example:\n *\n *\t\t<listItem listType=\"bulleted\" listIndent=0>A</listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=1>B^</listItem>\n *\t\t// At ^ paste:  <listItem listType=\"bulleted\" listIndent=4>X</listItem>\n *\t\t//              <listItem listType=\"bulleted\" listIndent=5>Y</listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=2>C</listItem>\n *\n * Should become:\n *\n *\t\t<listItem listType=\"bulleted\" listIndent=0>A</listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=1>BX</listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=2>Y/listItem>\n *\t\t<listItem listType=\"bulleted\" listIndent=2>C</listItem>\n *\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Array} args Arguments of {@link module:engine/model/model~Model#insertContent}.\n */\nexport function modelIndentPasteFixer( evt, [ content, selectable, placeOrOffset ] ) {\n\t// Check whether inserted content starts from a `listItem`. If it does not, it means that there are some other\n\t// elements before it and there is no need to fix indents, because even if we insert that content into a list,\n\t// that list will be broken.\n\t// Note: we also need to handle singular elements because inserting item with indent 0 into 0,1,[],2\n\t// would create incorrect model.\n\tlet item = content.is( 'documentFragment' ) ? content.getChild( 0 ) : content;\n\n\tlet selection;\n\n\tif ( !selectable ) {\n\t\tselection = this.document.selection;\n\t} else {\n\t\tselection = this.createSelection( selectable, placeOrOffset );\n\t}\n\n\tif ( item && item.is( 'element', 'listItem' ) ) {\n\t\t// Get a reference list item. Inserted list items will be fixed according to that item.\n\t\tconst pos = selection.getFirstPosition();\n\t\tlet refItem = null;\n\n\t\tif ( pos.parent.is( 'element', 'listItem' ) ) {\n\t\t\trefItem = pos.parent;\n\t\t} else if ( pos.nodeBefore && pos.nodeBefore.is( 'element', 'listItem' ) ) {\n\t\t\trefItem = pos.nodeBefore;\n\t\t}\n\n\t\t// If there is `refItem` it means that we do insert list items into an existing list.\n\t\tif ( refItem ) {\n\t\t\t// First list item in `data` has indent equal to 0 (it is a first list item). It should have indent equal\n\t\t\t// to the indent of reference item. We have to fix the first item and all of it's children and following siblings.\n\t\t\t// Indent of all those items has to be adjusted to reference item.\n\t\t\tconst indentChange = refItem.getAttribute( 'listIndent' );\n\n\t\t\t// Fix only if there is anything to fix.\n\t\t\tif ( indentChange > 0 ) {\n\t\t\t\t// Adjust indent of all \"first\" list items in inserted data.\n\t\t\t\twhile ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\t\t\titem._setAttribute( 'listIndent', item.getAttribute( 'listIndent' ) + indentChange );\n\n\t\t\t\t\titem = item.nextSibling;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Helper function that converts children of a given `<li>` view element into corresponding model elements.\n// The function maintains proper order of elements if model `listItem` is split during the conversion\n// due to block children conversion.\n//\n// @param {module:engine/model/element~Element} listItemModel List item model element to which converted children will be inserted.\n// @param {Iterable.<module:engine/view/node~Node>} viewChildren View elements which will be converted.\n// @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion interface to be used by the callback.\n// @returns {module:engine/model/position~Position} Position on which next elements should be inserted after children conversion.\nfunction viewToModelListItemChildrenConverter( listItemModel, viewChildren, conversionApi ) {\n\tconst { writer, schema } = conversionApi;\n\n\t// A position after the last inserted `listItem`.\n\tlet nextPosition = writer.createPositionAfter( listItemModel );\n\n\t// Check all children of the converted `<li>`. At this point we assume there are no \"whitespace\" view text nodes\n\t// in view list, between view list items. This should be handled by `<ul>` and `<ol>` converters.\n\tfor ( const child of viewChildren ) {\n\t\tif ( child.name == 'ul' || child.name == 'ol' ) {\n\t\t\t// If the children is a list, we will insert its conversion result after currently handled `listItem`.\n\t\t\t// Then, next insertion position will be set after all the new list items (and maybe other elements if\n\t\t\t// something split list item).\n\t\t\t//\n\t\t\t// If this is a list, we expect that some `listItem`s and possibly other blocks will be inserted, however `.modelCursor`\n\t\t\t// should be set after last `listItem` (or block). This is why it feels safe to use it as `nextPosition`\n\t\t\tnextPosition = conversionApi.convertItem( child, nextPosition ).modelCursor;\n\t\t} else {\n\t\t\t// If this is not a list, try inserting content at the end of the currently handled `listItem`.\n\t\t\tconst result = conversionApi.convertItem( child, writer.createPositionAt( listItemModel, 'end' ) );\n\n\t\t\t// It may end up that the current `listItem` becomes split (if that content cannot be inside `listItem`). For example:\n\t\t\t//\n\t\t\t// <li><p>Foo</p></li>\n\t\t\t//\n\t\t\t// will be converted to:\n\t\t\t//\n\t\t\t// <listItem></listItem><paragraph>Foo</paragraph><listItem></listItem>\n\t\t\t//\n\t\t\tconst convertedChild = result.modelRange.start.nodeAfter;\n\t\t\tconst wasSplit = convertedChild && convertedChild.is( 'element' ) && !schema.checkChild( listItemModel, convertedChild.name );\n\n\t\t\tif ( wasSplit ) {\n\t\t\t\t// As `lastListItem` got split, we need to update it to the second part of the split `listItem` element.\n\t\t\t\t//\n\t\t\t\t// `modelCursor` should be set to a position where the conversion should continue. There are multiple possible scenarios\n\t\t\t\t// that may happen. Usually, `modelCursor` (marked as `#` below) would point to the second list item after conversion:\n\t\t\t\t//\n\t\t\t\t//\t\t`<li><p>Foo</p></li>` -> `<listItem></listItem><paragraph>Foo</paragraph><listItem>#</listItem>`\n\t\t\t\t//\n\t\t\t\t// However, in some cases, like auto-paragraphing, the position is placed at the end of the block element:\n\t\t\t\t//\n\t\t\t\t//\t\t`<li><div>Foo</div></li>` -> `<listItem></listItem><paragraph>Foo#</paragraph><listItem></listItem>`\n\t\t\t\t//\n\t\t\t\t// or after an element if another element broken auto-paragraphed element:\n\t\t\t\t//\n\t\t\t\t//\t\t`<li><div><h2>Foo</h2></div></li>` -> `<listItem></listItem><heading1>Foo</heading1>#<listItem></listItem>`\n\t\t\t\t//\n\t\t\t\t// We need to check for such cases and use proper list item and position based on it.\n\t\t\t\t//\n\t\t\t\tif ( result.modelCursor.parent.is( 'element', 'listItem' ) ) {\n\t\t\t\t\t// (1).\n\t\t\t\t\tlistItemModel = result.modelCursor.parent;\n\t\t\t\t} else {\n\t\t\t\t\t// (2), (3).\n\t\t\t\t\tlistItemModel = findNextListItem( result.modelCursor );\n\t\t\t\t}\n\n\t\t\t\tnextPosition = writer.createPositionAfter( listItemModel );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn nextPosition;\n}\n\n// Helper function that seeks for a next list item starting from given `startPosition`.\nfunction findNextListItem( startPosition ) {\n\tconst treeWalker = new TreeWalker( { startPosition } );\n\n\tlet value;\n\n\tdo {\n\t\tvalue = treeWalker.next();\n\t} while ( !value.value.item.is( 'element', 'listItem' ) );\n\n\treturn value.value.item;\n}\n\n// Helper function that takes all children of given `viewRemovedItem` and moves them in a correct place, according\n// to other given parameters.\nfunction hoistNestedLists( nextIndent, modelRemoveStartPosition, viewRemoveStartPosition, viewRemovedItem, conversionApi, model ) {\n\t// Find correct previous model list item element.\n\t// The element has to have either same or smaller indent than given reference indent.\n\t// This will be the model element which will get nested items (if it has smaller indent) or sibling items (if it has same indent).\n\t// Keep in mind that such element might not be found, if removed item was the first item.\n\tconst prevModelItem = getSiblingListItem( modelRemoveStartPosition.nodeBefore, {\n\t\tsameIndent: true,\n\t\tsmallerIndent: true,\n\t\tlistIndent: nextIndent,\n\t\tfoo: 'b'\n\t} );\n\n\tconst mapper = conversionApi.mapper;\n\tconst viewWriter = conversionApi.writer;\n\n\t// Indent of found element or `null` if the element has not been found.\n\tconst prevIndent = prevModelItem ? prevModelItem.getAttribute( 'listIndent' ) : null;\n\n\tlet insertPosition;\n\n\tif ( !prevModelItem ) {\n\t\t// If element has not been found, simply insert lists at the position where the removed item was:\n\t\t//\n\t\t// Lorem ipsum.\n\t\t// 1 --------           <--- this is removed, no previous list item, put nested items in place of removed item.\n\t\t//   1.1 --------       <--- this is reference indent.\n\t\t//     1.1.1 --------\n\t\t//     1.1.2 --------\n\t\t//   1.2 --------\n\t\t//\n\t\t// Becomes:\n\t\t//\n\t\t// Lorem ipsum.\n\t\t// 1.1 --------\n\t\t//   1.1.1 --------\n\t\t//   1.1.2 --------\n\t\t// 1.2 --------\n\t\tinsertPosition = viewRemoveStartPosition;\n\t} else if ( prevIndent == nextIndent ) {\n\t\t// If element has been found and has same indent as reference indent it means that nested items should\n\t\t// become siblings of found element:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//   1.2 --------       <--- this is `prevModelItem`.\n\t\t// 2 --------           <--- this is removed, previous list item has indent same as reference indent.\n\t\t//   2.1 --------       <--- this is reference indent, this and 2.2 should become siblings of 1.2.\n\t\t//   2.2 --------\n\t\t//\n\t\t// Becomes:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//   1.2 --------\n\t\t//   2.1 --------\n\t\t//   2.2 --------\n\t\tconst prevViewList = mapper.toViewElement( prevModelItem ).parent;\n\t\tinsertPosition = viewWriter.createPositionAfter( prevViewList );\n\t} else {\n\t\t// If element has been found and has smaller indent as reference indent it means that nested items\n\t\t// should become nested items of found item:\n\t\t//\n\t\t// 1 --------           <--- this is `prevModelItem`.\n\t\t//   1.1 --------       <--- this is removed, previous list item has indent smaller than reference indent.\n\t\t//     1.1.1 --------   <--- this is reference indent, this and 1.1.1 should become nested items of 1.\n\t\t//     1.1.2 --------\n\t\t//   1.2 --------\n\t\t//\n\t\t// Becomes:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1.1 --------\n\t\t//   1.1.2 --------\n\t\t//   1.2 --------\n\t\t//\n\t\t// Note: in this case 1.1.1 have indent 2 while 1 have indent 0. In model that should not be possible,\n\t\t// because following item may have indent bigger only by one. But this is fixed by postfixer.\n\t\tconst modelPosition = model.createPositionAt( prevModelItem, 'end' );\n\t\tinsertPosition = mapper.toViewPosition( modelPosition );\n\t}\n\n\tinsertPosition = positionAfterUiElements( insertPosition );\n\n\t// Handle multiple lists. This happens if list item has nested numbered and bulleted lists. Following lists\n\t// are inserted after the first list (no need to recalculate insertion position for them).\n\tfor ( const child of [ ...viewRemovedItem.getChildren() ] ) {\n\t\tif ( isList( child ) ) {\n\t\t\tinsertPosition = viewWriter.move( viewWriter.createRangeOn( child ), insertPosition ).end;\n\n\t\t\tmergeViewLists( viewWriter, child, child.nextSibling );\n\t\t\tmergeViewLists( viewWriter, child.previousSibling, child );\n\t\t}\n\t}\n}\n\n// Checks if view element is a list type (ul or ol).\n//\n// @param {module:engine/view/element~Element} viewElement\n// @returns {Boolean}\nfunction isList( viewElement ) {\n\treturn viewElement.is( 'element', 'ol' ) || viewElement.is( 'element', 'ul' );\n}\n\n// Calculates the indent value for a list item. Handles HTML compliant and non-compliant lists.\n//\n// Also, fixes non HTML compliant lists indents:\n//\n//\t\tbefore:                                     fixed list:\n//\t\tOL                                          OL\n//\t\t|-> LI (parent LIs: 0)                      |-> LI     (indent: 0)\n//\t\t    |-> OL                                  |-> OL\n//\t\t        |-> OL                                  |\n//\t\t        |   |-> OL                              |\n//\t\t        |       |-> OL                          |\n//\t\t        |           |-> LI (parent LIs: 1)      |-> LI (indent: 1)\n//\t\t        |-> LI (parent LIs: 1)                  |-> LI (indent: 1)\n//\n//\t\tbefore:                                     fixed list:\n//\t\tOL                                          OL\n//\t\t|-> OL                                      |\n//\t\t    |-> OL                                  |\n//\t\t         |-> OL                             |\n//\t\t             |-> LI (parent LIs: 0)         |-> LI        (indent: 0)\n//\n//\t\tbefore:                                     fixed list:\n//\t\tOL                                          OL\n//\t\t|-> LI (parent LIs: 0)                      |-> LI         (indent: 0)\n//\t\t|-> OL                                          |-> OL\n//\t\t    |-> LI (parent LIs: 0)                          |-> LI (indent: 1)\n//\n// @param {module:engine/view/element~Element} listItem\n// @param {Object} conversionStore\n// @returns {Number}\nfunction getIndent( listItem ) {\n\tlet indent = 0;\n\n\tlet parent = listItem.parent;\n\n\twhile ( parent ) {\n\t\t// Each LI in the tree will result in an increased indent for HTML compliant lists.\n\t\tif ( parent.is( 'element', 'li' ) ) {\n\t\t\tindent++;\n\t\t} else {\n\t\t\t// If however the list is nested in other list we should check previous sibling of any of the list elements...\n\t\t\tconst previousSibling = parent.previousSibling;\n\n\t\t\t// ...because the we might need increase its indent:\n\t\t\t//\t\tbefore:                           fixed list:\n\t\t\t//\t\tOL                                OL\n\t\t\t//\t\t|-> LI (parent LIs: 0)            |-> LI         (indent: 0)\n\t\t\t//\t\t|-> OL                                |-> OL\n\t\t\t//\t\t    |-> LI (parent LIs: 0)                |-> LI (indent: 1)\n\t\t\tif ( previousSibling && previousSibling.is( 'element', 'li' ) ) {\n\t\t\t\tindent++;\n\t\t\t}\n\t\t}\n\n\t\tparent = parent.parent;\n\t}\n\n\treturn indent;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listediting\n */\n\nimport ListCommand from './listcommand';\nimport IndentCommand from './indentcommand';\nimport ListUtils from './listutils';\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Enter } from 'ckeditor5/src/enter';\nimport { Delete } from 'ckeditor5/src/typing';\n\nimport {\n\tcleanList,\n\tcleanListItem,\n\tmodelViewInsertion,\n\tmodelViewChangeType,\n\tmodelViewMergeAfterChangeType,\n\tmodelViewMergeAfter,\n\tmodelViewRemove,\n\tmodelViewSplitOnInsert,\n\tmodelViewChangeIndent,\n\tmodelChangePostFixer,\n\tmodelIndentPasteFixer,\n\tviewModelConverter,\n\tmodelToViewPosition,\n\tviewToModelPosition\n} from './converters';\n\n/**\n * The engine of the list feature. It handles creating, editing and removing lists and list items.\n *\n * It registers the `'numberedList'`, `'bulletedList'`, `'indentList'` and `'outdentList'` commands.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ListEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ListEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ Enter, Delete, ListUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Schema.\n\t\t// Note: in case `$block` will ever be allowed in `listItem`, keep in mind that this feature\n\t\t// uses `Selection#getSelectedBlocks()` without any additional processing to obtain all selected list items.\n\t\t// If there are blocks allowed inside list item, algorithms using `getSelectedBlocks()` will have to be modified.\n\t\teditor.model.schema.register( 'listItem', {\n\t\t\tinheritAllFrom: '$block',\n\t\t\tallowAttributes: [ 'listType', 'listIndent' ]\n\t\t} );\n\n\t\t// Converters.\n\t\tconst data = editor.data;\n\t\tconst editing = editor.editing;\n\n\t\teditor.model.document.registerPostFixer( writer => modelChangePostFixer( editor.model, writer ) );\n\n\t\tediting.mapper.registerViewToModelLength( 'li', getViewListItemLength );\n\t\tdata.mapper.registerViewToModelLength( 'li', getViewListItemLength );\n\n\t\tediting.mapper.on( 'modelToViewPosition', modelToViewPosition( editing.view ) );\n\t\tediting.mapper.on( 'viewToModelPosition', viewToModelPosition( editor.model ) );\n\t\tdata.mapper.on( 'modelToViewPosition', modelToViewPosition( editing.view ) );\n\n\t\teditor.conversion.for( 'editingDowncast' )\n\t\t\t.add( dispatcher => {\n\t\t\t\tdispatcher.on( 'insert', modelViewSplitOnInsert, { priority: 'high' } );\n\t\t\t\tdispatcher.on( 'insert:listItem', modelViewInsertion( editor.model ) );\n\t\t\t\tdispatcher.on( 'attribute:listType:listItem', modelViewChangeType, { priority: 'high' } );\n\t\t\t\tdispatcher.on( 'attribute:listType:listItem', modelViewMergeAfterChangeType, { priority: 'low' } );\n\t\t\t\tdispatcher.on( 'attribute:listIndent:listItem', modelViewChangeIndent( editor.model ) );\n\t\t\t\tdispatcher.on( 'remove:listItem', modelViewRemove( editor.model ) );\n\t\t\t\tdispatcher.on( 'remove', modelViewMergeAfter, { priority: 'low' } );\n\t\t\t} );\n\n\t\teditor.conversion.for( 'dataDowncast' )\n\t\t\t.add( dispatcher => {\n\t\t\t\tdispatcher.on( 'insert', modelViewSplitOnInsert, { priority: 'high' } );\n\t\t\t\tdispatcher.on( 'insert:listItem', modelViewInsertion( editor.model ) );\n\t\t\t} );\n\n\t\teditor.conversion.for( 'upcast' )\n\t\t\t.add( dispatcher => {\n\t\t\t\tdispatcher.on( 'element:ul', cleanList, { priority: 'high' } );\n\t\t\t\tdispatcher.on( 'element:ol', cleanList, { priority: 'high' } );\n\t\t\t\tdispatcher.on( 'element:li', cleanListItem, { priority: 'high' } );\n\t\t\t\tdispatcher.on( 'element:li', viewModelConverter );\n\t\t\t} );\n\n\t\t// Fix indentation of pasted items.\n\t\teditor.model.on( 'insertContent', modelIndentPasteFixer, { priority: 'high' } );\n\n\t\t// Register commands for numbered and bulleted list.\n\t\teditor.commands.add( 'numberedList', new ListCommand( editor, 'numbered' ) );\n\t\teditor.commands.add( 'bulletedList', new ListCommand( editor, 'bulleted' ) );\n\n\t\t// Register commands for indenting.\n\t\teditor.commands.add( 'indentList', new IndentCommand( editor, 'forward' ) );\n\t\teditor.commands.add( 'outdentList', new IndentCommand( editor, 'backward' ) );\n\n\t\tconst viewDocument = editing.view.document;\n\n\t\t// Overwrite default Enter key behavior.\n\t\t// If Enter key is pressed with selection collapsed in empty list item, outdent it instead of breaking it.\n\t\tthis.listenTo( viewDocument, 'enter', ( evt, data ) => {\n\t\t\tconst doc = this.editor.model.document;\n\t\t\tconst positionParent = doc.selection.getLastPosition().parent;\n\n\t\t\tif ( doc.selection.isCollapsed && positionParent.name == 'listItem' && positionParent.isEmpty ) {\n\t\t\t\tthis.editor.execute( 'outdentList' );\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'li' } );\n\n\t\t// Overwrite default Backspace key behavior.\n\t\t// If Backspace key is pressed with selection collapsed on first position in first list item, outdent it. #83\n\t\tthis.listenTo( viewDocument, 'delete', ( evt, data ) => {\n\t\t\t// Check conditions from those that require less computations like those immediately available.\n\t\t\tif ( data.direction !== 'backward' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selection = this.editor.model.document.selection;\n\n\t\t\tif ( !selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst firstPosition = selection.getFirstPosition();\n\n\t\t\tif ( !firstPosition.isAtStart ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst positionParent = firstPosition.parent;\n\n\t\t\tif ( positionParent.name !== 'listItem' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst previousIsAListItem = positionParent.previousSibling && positionParent.previousSibling.name === 'listItem';\n\n\t\t\tif ( previousIsAListItem ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.execute( 'outdentList' );\n\n\t\t\tdata.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: 'li' } );\n\n\t\tthis.listenTo( editor.editing.view.document, 'tab', ( evt, data ) => {\n\t\t\tconst commandName = data.shiftKey ? 'outdentList' : 'indentList';\n\t\t\tconst command = this.editor.commands.get( commandName );\n\n\t\t\tif ( command.isEnabled ) {\n\t\t\t\teditor.execute( commandName );\n\n\t\t\t\tdata.stopPropagation();\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'li' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst commands = this.editor.commands;\n\n\t\tconst indent = commands.get( 'indent' );\n\t\tconst outdent = commands.get( 'outdent' );\n\n\t\tif ( indent ) {\n\t\t\tindent.registerChildCommand( commands.get( 'indentList' ) );\n\t\t}\n\n\t\tif ( outdent ) {\n\t\t\toutdent.registerChildCommand( commands.get( 'outdentList' ) );\n\t\t}\n\t}\n}\n\nfunction getViewListItemLength( element ) {\n\tlet length = 1;\n\n\tfor ( const child of element.getChildren() ) {\n\t\tif ( child.name == 'ul' || child.name == 'ol' ) {\n\t\t\tfor ( const item of child.getChildren() ) {\n\t\t\t\tlength += getViewListItemLength( item );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn length;\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM3.5 3v5H2V3.7H1v-1h2.5V3zM.343 17.857l2.59-3.257H2.92a.6.6 0 1 0-1.04 0H.302a2 2 0 1 1 3.995 0h-.001c-.048.405-.16.734-.333.988-.175.254-.59.692-1.244 1.312H4.3v1h-4l.043-.043zM7 14.75a.75.75 0 0 1 .75-.75h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0C1 4.784 1.777 4 2.75 4c.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75C1.784 7.5 1 6.723 1 5.75zm6 9c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0c0-.966.777-1.75 1.75-1.75.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75-.966 0-1.75-.777-1.75-1.75z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listui\n */\n\nimport { createUIComponent } from './utils';\n\nimport numberedListIcon from '../../theme/icons/numberedlist.svg';\nimport bulletedListIcon from '../../theme/icons/bulletedlist.svg';\n\nimport { Plugin } from 'ckeditor5/src/core';\n\n/**\n * The list UI feature. It introduces the `'numberedList'` and `'bulletedList'` buttons that\n * allow to convert paragraphs to and from list items and indent or outdent them.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ListUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ListUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst t = this.editor.t;\n\n\t\t// Create two buttons and link them with numberedList and bulletedList commands.\n\t\tcreateUIComponent( this.editor, 'numberedList', t( 'Numbered List' ), numberedListIcon );\n\t\tcreateUIComponent( this.editor, 'bulletedList', t( 'Bulleted List' ), bulletedListIcon );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/liststylecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { getListTypeFromListStyleType, getSelectedListItems } from '../list/utils';\n\n/**\n * The list style command. It changes the `listStyle` attribute of the selected list items.\n *\n * If the list type (numbered or bulleted) can be inferred from the passed style type,\n * the command tries to convert selected items to a list of that type.\n * It is used by the {@link module:list/listproperties~ListProperties list properties feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class ListStyleCommand extends Command {\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor instance.\n\t * @param {String} defaultType The list type that will be used by default if the value was not specified during\n\t * the command execution.\n\t */\n\tconstructor( editor, defaultType ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The default type of the list style.\n\t\t *\n\t\t * @protected\n\t\t * @member {String}\n\t\t */\n\t\tthis._defaultType = defaultType;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} options\n\t * @param {String|null} [options.type] The type of the list style, e.g. `'disc'` or `'square'`. If `null` is specified, the default\n\t * style will be applied.\n\t */\n\texecute( options = {} ) {\n\t\tthis._tryToConvertItemsToList( options );\n\n\t\tconst model = this.editor.model;\n\t\tconst listItems = getSelectedListItems( model );\n\n\t\tif ( !listItems.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of listItems ) {\n\t\t\t\twriter.setAttribute( 'listStyle', options.type || this._defaultType, item );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @private\n\t * @returns {String|null} The current value.\n\t */\n\t_getValue() {\n\t\tconst listItem = this.editor.model.document.selection.getFirstPosition().parent;\n\n\t\tif ( listItem && listItem.is( 'element', 'listItem' ) ) {\n\t\t\treturn listItem.getAttribute( 'listStyle' );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\t_checkEnabled() {\n\t\tconst editor = this.editor;\n\n\t\tconst numberedList = editor.commands.get( 'numberedList' );\n\t\tconst bulletedList = editor.commands.get( 'bulletedList' );\n\n\t\treturn numberedList.isEnabled || bulletedList.isEnabled;\n\t}\n\n\t/**\n\t * Check if the provided list style is valid. Also change the selection to a list if it's not set yet.\n\t *\n\t * @param {Object} options\n\t * @param {String|null} [options.type] The type of the list style. If `null` is specified, the function does nothing.\n\t * @private\n\t*/\n\t_tryToConvertItemsToList( options ) {\n\t\tif ( !options.type ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst listType = getListTypeFromListStyleType( options.type );\n\n\t\tif ( !listType ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst commandName = listType + 'List';\n\t\tconst command = editor.commands.get( commandName );\n\n\t\tif ( !command.value ) {\n\t\t\teditor.execute( commandName );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/listreversedcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { getSelectedListItems } from '../list/utils';\n\n/**\n * The reversed list command. It changes the `listReversed` attribute of the selected list items. As a result, the list order will be\n * reversed.\n * It is used by the {@link module:list/listproperties~ListProperties list properties feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class ListReversedCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst value = this._getValue();\n\t\tthis.value = value;\n\t\tthis.isEnabled = value != null;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} options\n\t * @param {Boolean} [options.reversed=false] Whether the list should be reversed.\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst listItems = getSelectedListItems( model )\n\t\t\t.filter( item => item.getAttribute( 'listType' ) == 'numbered' );\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of listItems ) {\n\t\t\t\twriter.setAttribute( 'listReversed', !!options.reversed, item );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @private\n\t * @returns {Boolean|null} The current value.\n\t */\n\t_getValue() {\n\t\tconst listItem = this.editor.model.document.selection.getFirstPosition().parent;\n\n\t\tif ( listItem && listItem.is( 'element', 'listItem' ) && listItem.getAttribute( 'listType' ) == 'numbered' ) {\n\t\t\treturn listItem.getAttribute( 'listReversed' );\n\t\t}\n\n\t\treturn null;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/liststartcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { getSelectedListItems } from '../list/utils';\n\n/**\n * The list start index command. It changes the `listStart` attribute of the selected list items.\n * It is used by the {@link module:list/listproperties~ListProperties list properties feature}.\n *\n * @extends module:core/command~Command\n */\nexport default class ListStartCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst value = this._getValue();\n\t\tthis.value = value;\n\t\tthis.isEnabled = value != null;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} options\n\t * @param {Number} [options.startIndex=1] The list start index.\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst listItems = getSelectedListItems( model )\n\t\t\t.filter( item => item.getAttribute( 'listType' ) == 'numbered' );\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of listItems ) {\n\t\t\t\twriter.setAttribute( 'listStart', options.startIndex >= 0 ? options.startIndex : 1, item );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @private\n\t * @returns {Boolean|null} The current value.\n\t */\n\t_getValue() {\n\t\tconst listItem = this.editor.model.document.selection.getFirstPosition().parent;\n\n\t\tif ( listItem && listItem.is( 'element', 'listItem' ) && listItem.getAttribute( 'listType' ) == 'numbered' ) {\n\t\t\treturn listItem.getAttribute( 'listStart' );\n\t\t}\n\n\t\treturn null;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/listpropertiesediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ListEditing from '../list/listediting';\nimport ListStyleCommand from './liststylecommand';\nimport ListReversedCommand from './listreversedcommand';\nimport ListStartCommand from './liststartcommand';\nimport { getSiblingListItem, getSiblingNodes } from '../list/utils';\n\nconst DEFAULT_LIST_TYPE = 'default';\n\n/**\n * The engine of the list properties feature.\n *\n * It sets the value for the `listItem` attribute of the {@link module:list/list~List `<listItem>`} element that\n * allows modifying the list style type.\n *\n * It registers the `'listStyle'`, `'listReversed'` and `'listStart'` commands if they are enabled in the configuration.\n * Read more in {@link module:list/listproperties~ListPropertiesConfig}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ListPropertiesEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ListEditing ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ListPropertiesEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'list', {\n\t\t\tproperties: {\n\t\t\t\tstyles: true,\n\t\t\t\tstartIndex: false,\n\t\t\t\treversed: false\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tconst enabledProperties = editor.config.get( 'list.properties' );\n\t\tconst strategies = createAttributeStrategies( enabledProperties );\n\n\t\t// Extend schema.\n\t\tmodel.schema.extend( 'listItem', {\n\t\t\tallowAttributes: strategies.map( s => s.attributeName )\n\t\t} );\n\n\t\tfor ( const strategy of strategies ) {\n\t\t\tstrategy.addCommand( editor );\n\t\t}\n\n\t\t// Fix list attributes when modifying their nesting levels (the `listIndent` attribute).\n\t\tthis.listenTo( editor.commands.get( 'indentList' ), '_executeCleanup', fixListAfterIndentListCommand( editor, strategies ) );\n\t\tthis.listenTo( editor.commands.get( 'outdentList' ), '_executeCleanup', fixListAfterOutdentListCommand( editor, strategies ) );\n\n\t\tthis.listenTo( editor.commands.get( 'bulletedList' ), '_executeCleanup', restoreDefaultListStyle( editor ) );\n\t\tthis.listenTo( editor.commands.get( 'numberedList' ), '_executeCleanup', restoreDefaultListStyle( editor ) );\n\n\t\t// Register a post-fixer that ensures that the attributes is specified in each `listItem` element.\n\t\tmodel.document.registerPostFixer( fixListAttributesOnListItemElements( editor, strategies ) );\n\n\t\t// Set up conversion.\n\t\teditor.conversion.for( 'upcast' ).add( upcastListItemAttributes( strategies ) );\n\t\teditor.conversion.for( 'downcast' ).add( downcastListItemAttributes( strategies ) );\n\n\t\t// Handle merging two separated lists into the single one.\n\t\tthis._mergeListAttributesWhileMergingLists( strategies );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst editor = this.editor;\n\n\t\t// Enable post-fixer that removes the attributes from to-do list items only if the \"TodoList\" plugin is on.\n\t\t// We need to registry the hook here since the `TodoList` plugin can be added after the `ListPropertiesEditing`.\n\t\tif ( editor.commands.get( 'todoList' ) ) {\n\t\t\teditor.model.document.registerPostFixer( removeListItemAttributesFromTodoList( editor ) );\n\t\t}\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#deleteContent} and checks whether two lists will be merged into a single\n\t * one after deleting the content.\n\t *\n\t * The purpose of this action is to adjust the `listStyle`, `listReversed` and `listStart` values\n\t * for the list that was merged.\n\t *\n\t * Consider the following model's content:\n\t *\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t *     <paragraph>[A paragraph.]</paragraph>\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">UL List item 1</listItem>\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">UL List item 2</listItem>\n\t *\n\t * After removing the paragraph element, the second list will be merged into the first one.\n\t * We want to inherit the `listStyle` attribute for the second list from the first one.\n\t *\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t *     <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/7879.\n\t *\n\t * @private\n\t * @param {Array.<module:list/listproperties/listpropertiesediting~AttributeStrategy>} attributeStrategies Strategies for the\n\t * enabled attributes.\n\t */\n\t_mergeListAttributesWhileMergingLists( attributeStrategies ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\t// First the outer-most`listItem` in the first list reference.\n\t\t// If found, the lists should be merged and this `listItem` provides the attributes\n\t\t// and it is also a starting point when searching for items in the second list.\n\t\tlet firstMostOuterItem;\n\n\t\t// Check whether the removed content is between two lists.\n\t\tthis.listenTo( model, 'deleteContent', ( evt, [ selection ] ) => {\n\t\t\tconst firstPosition = selection.getFirstPosition();\n\t\t\tconst lastPosition = selection.getLastPosition();\n\n\t\t\t// Typing or removing content in a single item. Aborting.\n\t\t\tif ( firstPosition.parent === lastPosition.parent ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// An element before the content that will be removed is not a list.\n\t\t\tif ( !firstPosition.parent.is( 'element', 'listItem' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst nextSibling = lastPosition.parent.nextSibling;\n\n\t\t\t// An element after the content that will be removed is not a list.\n\t\t\tif ( !nextSibling || !nextSibling.is( 'element', 'listItem' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Find the outermost list item based on the `listIndent` attribute. We can't assume that `listIndent=0`\n\t\t\t// because the selection can be hooked in nested lists.\n\t\t\t//\n\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t\t\t// <listItem listIndent=\"1\" listType=\"bulleted\" listStyle=\"square\">UL List [item 1.1</listItem>\n\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">[]UL List item 1.</listItem>\n\t\t\t// <listItem listIndent=\"1\" listType=\"bulleted\" listStyle=\"circle\">UL List ]item 1.1</listItem>\n\t\t\t//\n\t\t\t// After deleting the content, we would like to inherit the \"square\" attribute for the last element:\n\t\t\t//\n\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t\t\t// <listItem listIndent=\"1\" listType=\"bulleted\" listStyle=\"square\">UL List []item 1.1</listItem>\n\t\t\tconst mostOuterItemList = getSiblingListItem( firstPosition.parent, {\n\t\t\t\tsameIndent: true,\n\t\t\t\tlistIndent: nextSibling.getAttribute( 'listIndent' )\n\t\t\t} );\n\n\t\t\t// The outermost list item may not exist while removing elements between lists with different value\n\t\t\t// of the `listIndent` attribute. In such a case we don't want to update anything. See: #8073.\n\t\t\tif ( !mostOuterItemList ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( mostOuterItemList.getAttribute( 'listType' ) === nextSibling.getAttribute( 'listType' ) ) {\n\t\t\t\tfirstMostOuterItem = mostOuterItemList;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// If so, update the `listStyle` attribute for the second list.\n\t\tthis.listenTo( model, 'deleteContent', () => {\n\t\t\tif ( !firstMostOuterItem ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\t// Find the first most-outer item list in the merged list.\n\t\t\t\t// A case when the first list item in the second list was merged into the last item in the first list.\n\t\t\t\t//\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">[]UL List item 1</listItem>\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">UL List item 2</listItem>\n\t\t\t\tconst secondListMostOuterItem = getSiblingListItem( firstMostOuterItem.nextSibling, {\n\t\t\t\t\tsameIndent: true,\n\t\t\t\t\tlistIndent: firstMostOuterItem.getAttribute( 'listIndent' ),\n\t\t\t\t\tdirection: 'forward'\n\t\t\t\t} );\n\n\t\t\t\t// If the selection ends in a non-list element, there are no <listItem>s that would require adjustments.\n\t\t\t\t// See: #8642.\n\t\t\t\tif ( !secondListMostOuterItem ) {\n\t\t\t\t\tfirstMostOuterItem = null;\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst items = [\n\t\t\t\t\tsecondListMostOuterItem,\n\t\t\t\t\t...getSiblingNodes( writer.createPositionAt( secondListMostOuterItem, 0 ), 'forward' )\n\t\t\t\t];\n\n\t\t\t\tfor ( const listItem of items ) {\n\t\t\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\t\t\tif ( strategy.appliesToListItem( listItem ) ) {\n\t\t\t\t\t\t\tconst attributeName = strategy.attributeName;\n\t\t\t\t\t\t\tconst value = firstMostOuterItem.getAttribute( attributeName );\n\n\t\t\t\t\t\t\twriter.setAttribute( attributeName, value, listItem );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tfirstMostOuterItem = null;\n\t\t}, { priority: 'low' } );\n\t}\n}\n\n/**\n * Strategy for dealing with `listItem` attributes supported by this plugin.\n *\n * @typedef {Object} AttributeStrategy\n * @private\n * @property {String} #attributeName\n * @property {*} #defaultValue\n * @property {Function} #addCommand\n * @property {Function} #appliesToListItem\n * @property {Function} #setAttributeOnDowncast\n * @property {Function} #getAttributeOnUpcast\n*/\n\n// Creates an array of strategies for dealing with enabled listItem attributes.\n//\n// @param {Object} enabledProperties\n// @param {Boolean} enabledProperties.styles\n// @param {Boolean} enabledProperties.reversed\n// @param {Boolean} enabledProperties.startIndex\n// @returns {Array.<module:list/listpropertiesediting~AttributeStrategy>}\nfunction createAttributeStrategies( enabledProperties ) {\n\tconst strategies = [];\n\n\tif ( enabledProperties.styles ) {\n\t\tstrategies.push( {\n\t\t\tattributeName: 'listStyle',\n\t\t\tdefaultValue: DEFAULT_LIST_TYPE,\n\n\t\t\taddCommand( editor ) {\n\t\t\t\teditor.commands.add( 'listStyle', new ListStyleCommand( editor, DEFAULT_LIST_TYPE ) );\n\t\t\t},\n\n\t\t\tappliesToListItem() {\n\t\t\t\treturn true;\n\t\t\t},\n\n\t\t\tsetAttributeOnDowncast( writer, listStyle, element ) {\n\t\t\t\tif ( listStyle && listStyle !== DEFAULT_LIST_TYPE ) {\n\t\t\t\t\twriter.setStyle( 'list-style-type', listStyle, element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeStyle( 'list-style-type', element );\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tgetAttributeOnUpcast( listParent ) {\n\t\t\t\treturn listParent.getStyle( 'list-style-type' ) || DEFAULT_LIST_TYPE;\n\t\t\t}\n\t\t} );\n\t}\n\n\tif ( enabledProperties.reversed ) {\n\t\tstrategies.push( {\n\t\t\tattributeName: 'listReversed',\n\t\t\tdefaultValue: false,\n\n\t\t\taddCommand( editor ) {\n\t\t\t\teditor.commands.add( 'listReversed', new ListReversedCommand( editor ) );\n\t\t\t},\n\n\t\t\tappliesToListItem( item ) {\n\t\t\t\treturn item.getAttribute( 'listType' ) == 'numbered';\n\t\t\t},\n\n\t\t\tsetAttributeOnDowncast( writer, listReversed, element ) {\n\t\t\t\tif ( listReversed ) {\n\t\t\t\t\twriter.setAttribute( 'reversed', 'reversed', element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( 'reversed', element );\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tgetAttributeOnUpcast( listParent ) {\n\t\t\t\treturn listParent.hasAttribute( 'reversed' );\n\t\t\t}\n\t\t} );\n\t}\n\n\tif ( enabledProperties.startIndex ) {\n\t\tstrategies.push( {\n\t\t\tattributeName: 'listStart',\n\t\t\tdefaultValue: 1,\n\n\t\t\taddCommand( editor ) {\n\t\t\t\teditor.commands.add( 'listStart', new ListStartCommand( editor ) );\n\t\t\t},\n\n\t\t\tappliesToListItem( item ) {\n\t\t\t\treturn item.getAttribute( 'listType' ) == 'numbered';\n\t\t\t},\n\n\t\t\tsetAttributeOnDowncast( writer, listStart, element ) {\n\t\t\t\tif ( listStart == 0 || listStart > 1 ) {\n\t\t\t\t\twriter.setAttribute( 'start', listStart, element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( 'start', element );\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tgetAttributeOnUpcast( listParent ) {\n\t\t\t\tconst startAttributeValue = listParent.getAttribute( 'start' );\n\n\t\t\t\treturn startAttributeValue >= 0 ? startAttributeValue : 1;\n\t\t\t}\n\t\t} );\n\t}\n\n\treturn strategies;\n}\n\n// Returns a converter consumes the `style`, `reversed` and `start` attribute.\n// In `style` it searches for the `list-style-type` definition.\n// If not found, the `\"default\"` value will be used.\n//\n// @param {Array.<module:list/listpropertiesediting~AttributeStrategy>} attributeStrategies\n// @returns {Function}\nfunction upcastListItemAttributes( attributeStrategies ) {\n\treturn dispatcher => {\n\t\tdispatcher.on( 'element:li', ( evt, data, conversionApi ) => {\n\t\t\tconst listParent = data.viewItem.parent;\n\t\t\tconst listItem = data.modelRange.start.nodeAfter || data.modelRange.end.nodeBefore;\n\n\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\tif ( strategy.appliesToListItem( listItem ) ) {\n\t\t\t\t\tconst listStyle = strategy.getAttributeOnUpcast( listParent );\n\t\t\t\t\tconversionApi.writer.setAttribute( strategy.attributeName, listStyle, listItem );\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t};\n}\n\n// Returns a converter that adds `reversed`, `start` attributes and adds `list-style-type` definition as a value for the `style` attribute.\n// The `\"default\"` values are removed and not present in the view/data.\n//\n// @param {Array.<module:list/listpropertiesediting~AttributeStrategy>} attributeStrategies\n// @returns {Function}\nfunction downcastListItemAttributes( attributeStrategies ) {\n\treturn dispatcher => {\n\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\tdispatcher.on( `attribute:${ strategy.attributeName }:listItem`, ( evt, data, conversionApi ) => {\n\t\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\t\tconst currentElement = data.item;\n\n\t\t\t\tconst previousElement = getSiblingListItem( currentElement.previousSibling, {\n\t\t\t\t\tsameIndent: true,\n\t\t\t\t\tlistIndent: currentElement.getAttribute( 'listIndent' ),\n\t\t\t\t\tdirection: 'backward'\n\t\t\t\t} );\n\n\t\t\t\tconst viewItem = conversionApi.mapper.toViewElement( currentElement );\n\n\t\t\t\t// A case when elements represent different lists. We need to separate their container.\n\t\t\t\tif ( !areRepresentingSameList( currentElement, previousElement ) ) {\n\t\t\t\t\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\t\t\t\t}\n\t\t\t\tstrategy.setAttributeOnDowncast( viewWriter, data.attributeNewValue, viewItem.parent );\n\t\t\t}, { priority: 'low' } );\n\t\t}\n\t};\n\n\t// Checks whether specified list items belong to the same list.\n\t//\n\t// @param {module:engine/model/element~Element} `listItem1` The first list item to check.\n\t// @param {module:engine/model/element~Element|null} `listItem2` The second list item to check.\n\t// @returns {Boolean}\n\tfunction areRepresentingSameList( listItem1, listItem2 ) {\n\t\treturn listItem2 &&\n\t\t\tlistItem1.getAttribute( 'listType' ) === listItem2.getAttribute( 'listType' ) &&\n\t\t\tlistItem1.getAttribute( 'listIndent' ) === listItem2.getAttribute( 'listIndent' ) &&\n\t\t\tlistItem1.getAttribute( 'listStyle' ) === listItem2.getAttribute( 'listStyle' ) &&\n\t\t\tlistItem1.getAttribute( 'listReversed' ) === listItem2.getAttribute( 'listReversed' ) &&\n\t\t\tlistItem1.getAttribute( 'listStart' ) === listItem2.getAttribute( 'listStart' );\n\t}\n}\n\n// When indenting list, nested list should clear its value for the attributes or inherit from nested lists.\n//\n// ■ List item 1.\n// ■ List item 2.[]\n// ■ List item 3.\n// editor.execute( 'indentList' );\n//\n// ■ List item 1.\n//     ○ List item 2.[]\n// ■ List item 3.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {Array.<module:list/listpropertiesediting~AttributeStrategy>} attributeStrategies\n// @returns {Function}\nfunction fixListAfterIndentListCommand( editor, attributeStrategies ) {\n\treturn ( evt, changedItems ) => {\n\t\tconst root = changedItems[ 0 ];\n\t\tconst rootIndent = root.getAttribute( 'listIndent' );\n\n\t\tconst itemsToUpdate = changedItems.filter( item => item.getAttribute( 'listIndent' ) === rootIndent );\n\n\t\t// A case where a few list items are indented must be checked separately\n\t\t// since `getSiblingListItem()` returns the first changed element.\n\t\t// ■ List item 1.\n\t\t//     ○ [List item 2.\n\t\t//     ○ List item 3.]\n\t\t// ■ List item 4.\n\t\t//\n\t\t// List items: `2` and `3` should be adjusted.\n\t\tlet previousSibling = null;\n\n\t\tif ( root.previousSibling.getAttribute( 'listIndent' ) + 1 !== rootIndent ) {\n\t\t\tpreviousSibling = getSiblingListItem( root.previousSibling, {\n\t\t\t\tsameIndent: true, direction: 'backward', listIndent: rootIndent\n\t\t\t} );\n\t\t}\n\n\t\teditor.model.change( writer => {\n\t\t\tfor ( const item of itemsToUpdate ) {\n\t\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\t\tif ( strategy.appliesToListItem( item ) ) {\n\t\t\t\t\t\tconst valueToSet = previousSibling == null ?\n\t\t\t\t\t\t\tstrategy.defaultValue :\n\t\t\t\t\t\t\tpreviousSibling.getAttribute( strategy.attributeName );\n\n\t\t\t\t\t\twriter.setAttribute( strategy.attributeName, valueToSet, item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t};\n}\n\n// When outdenting a list, a nested list should copy attribute values\n// from the previous sibling list item including the same value for the `listIndent` value.\n//\n// ■ List item 1.\n//     ○ List item 2.[]\n// ■ List item 3.\n//\n// editor.execute( 'outdentList' );\n//\n// ■ List item 1.\n// ■ List item 2.[]\n// ■ List item 3.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {Array.<module:list/listpropertiesediting~AttributeStrategy>} attributeStrategies\n// @returns {Function}\nfunction fixListAfterOutdentListCommand( editor, attributeStrategies ) {\n\treturn ( evt, changedItems ) => {\n\t\tchangedItems = changedItems.reverse().filter( item => item.is( 'element', 'listItem' ) );\n\n\t\tif ( !changedItems.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst indent = changedItems[ 0 ].getAttribute( 'listIndent' );\n\t\tconst listType = changedItems[ 0 ].getAttribute( 'listType' );\n\t\tlet listItem = changedItems[ 0 ].previousSibling;\n\n\t\t// ■ List item 1.\n\t\t//     ○ List item 2.\n\t\t//     ○ List item 3.[]\n\t\t// ■ List item 4.\n\t\t//\n\t\t// After outdenting a list, `List item 3` should inherit the `listStyle` attribute from `List item 1`.\n\t\t//\n\t\t// ■ List item 1.\n\t\t//     ○ List item 2.\n\t\t// ■ List item 3.[]\n\t\t// ■ List item 4.\n\t\tif ( listItem.is( 'element', 'listItem' ) ) {\n\t\t\twhile ( listItem.getAttribute( 'listIndent' ) !== indent ) {\n\t\t\t\tlistItem = listItem.previousSibling;\n\t\t\t}\n\t\t} else {\n\t\t\tlistItem = null;\n\t\t}\n\n\t\t// Outdenting such a list should restore values based on `List item 4`.\n\t\t// ■ List item 1.[]\n\t\t//     ○ List item 2.\n\t\t//     ○ List item 3.\n\t\t// ■ List item 4.\n\t\tif ( !listItem ) {\n\t\t\tlistItem = changedItems[ changedItems.length - 1 ].nextSibling;\n\t\t}\n\n\t\t// And such a list should not modify anything.\n\t\t// However, `listItem` can indicate a node below the list. Be sure that we have the `listItem` element.\n\t\t// ■ List item 1.[]\n\t\t//     ○ List item 2.\n\t\t//     ○ List item 3.\n\t\t// <paragraph>The later if check.</paragraph>\n\t\tif ( !listItem || !listItem.is( 'element', 'listItem' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not modify the list if found `listItem` represents other type of list than outdented list items.\n\t\tif ( listItem.getAttribute( 'listType' ) !== listType ) {\n\t\t\treturn;\n\t\t}\n\n\t\teditor.model.change( writer => {\n\t\t\tconst itemsToUpdate = changedItems.filter( item => item.getAttribute( 'listIndent' ) === indent );\n\n\t\t\tfor ( const item of itemsToUpdate ) {\n\t\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\t\tif ( strategy.appliesToListItem( item ) ) {\n\t\t\t\t\t\tconst attributeName = strategy.attributeName;\n\t\t\t\t\t\tconst valueToSet = listItem.getAttribute( attributeName );\n\n\t\t\t\t\t\twriter.setAttribute( attributeName, valueToSet, item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t};\n}\n\n// Each `listItem` element must have specified the `listStyle`, `listReversed` and `listStart` attributes\n// if they are enabled and supported by its `listType`.\n// This post-fixer checks whether inserted elements `listItem` elements should inherit the attribute values from\n// their sibling nodes or should use the default values.\n//\n// Paragraph[]\n// ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n// ■ List item 2. // ...\n// ■ List item 3. // ...\n//\n// editor.execute( 'bulletedList' )\n//\n// ■ Paragraph[]  // [listStyle=\"square\", listType=\"bulleted\"]\n// ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n// ■ List item 2.\n// ■ List item 3.\n//\n// It also covers a such change:\n//\n// [Paragraph 1\n// Paragraph 2]\n// ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n// ■ List item 2. // ...\n// ■ List item 3. // ...\n//\n// editor.execute( 'numberedList' )\n//\n// 1. [Paragraph 1 // [listStyle=\"default\", listType=\"numbered\"]\n// 2. Paragraph 2] // [listStyle=\"default\", listType=\"numbered\"]\n// ■ List item 1.  // [listStyle=\"square\", listType=\"bulleted\"]\n// ■ List item 2.  // ...\n// ■ List item 3.  // ...\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {Array.<module:list/listpropertiesediting~AttributeStrategy>} attributeStrategies\n// @returns {Function}\nfunction fixListAttributesOnListItemElements( editor, attributeStrategies ) {\n\treturn writer => {\n\t\tlet wasFixed = false;\n\n\t\tconst insertedListItems = getChangedListItems( editor.model.document.differ.getChanges() )\n\t\t\t.filter( item => {\n\t\t\t\t// Don't touch todo lists. They are handled in another post-fixer.\n\t\t\t\treturn item.getAttribute( 'listType' ) !== 'todo';\n\t\t\t} );\n\n\t\tif ( !insertedListItems.length ) {\n\t\t\treturn wasFixed;\n\t\t}\n\n\t\t// Check whether the last inserted element is next to the `listItem` element.\n\t\t//\n\t\t// ■ Paragraph[]  // <-- The inserted item.\n\t\t// ■ List item 1.\n\t\tlet existingListItem = insertedListItems[ insertedListItems.length - 1 ].nextSibling;\n\n\t\t// If it doesn't, maybe the `listItem` was inserted at the end of the list.\n\t\t//\n\t\t// ■ List item 1.\n\t\t// ■ Paragraph[]  // <-- The inserted item.\n\t\tif ( !existingListItem || !existingListItem.is( 'element', 'listItem' ) ) {\n\t\t\texistingListItem = insertedListItems[ 0 ].previousSibling;\n\n\t\t\tif ( existingListItem ) {\n\t\t\t\tconst indent = insertedListItems[ 0 ].getAttribute( 'listIndent' );\n\n\t\t\t\t// But we need to find a `listItem` with the `listIndent=0` attribute.\n\t\t\t\t// If doesn't, maybe the `listItem` was inserted at the end of the list.\n\t\t\t\t//\n\t\t\t\t// ■ List item 1.\n\t\t\t\t//     ○ List item 2.\n\t\t\t\t// ■ Paragraph[]  // <-- The inserted item.\n\t\t\t\twhile ( existingListItem.is( 'element', 'listItem' ) && existingListItem.getAttribute( 'listIndent' ) !== indent ) {\n\t\t\t\t\texistingListItem = existingListItem.previousSibling;\n\n\t\t\t\t\t// If the item does not exist, most probably there is no other content in the editor. See: #8072.\n\t\t\t\t\tif ( !existingListItem ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\tconst attributeName = strategy.attributeName;\n\n\t\t\tfor ( const item of insertedListItems ) {\n\t\t\t\tif ( !strategy.appliesToListItem( item ) ) {\n\t\t\t\t\twriter.removeAttribute( attributeName, item );\n\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tif ( !item.hasAttribute( attributeName ) ) {\n\t\t\t\t\tif ( shouldInheritListType( existingListItem, item, strategy ) ) {\n\t\t\t\t\t\twriter.setAttribute( attributeName, existingListItem.getAttribute( attributeName ), item );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.setAttribute( attributeName, strategy.defaultValue, item );\n\t\t\t\t\t}\n\t\t\t\t\twasFixed = true;\n\t\t\t\t} else {\n\t\t\t\t\t// Adjust the `listStyle`, `listReversed` and `listStart`\n\t\t\t\t\t// attributes for inserted (pasted) items. See #8160.\n\t\t\t\t\t//\n\t\t\t\t\t// ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ List item 1.1. // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ [] (selection is here)\n\t\t\t\t\t//\n\t\t\t\t\t// Then, pasting a list with different attributes (listStyle, listType):\n\t\t\t\t\t//\n\t\t\t\t\t// 1. First. // [listStyle=\"decimal\", listType=\"numbered\"]\n\t\t\t\t\t// 2. Second // [listStyle=\"decimal\", listType=\"numbered\"]\n\t\t\t\t\t//\n\t\t\t\t\t// The `listType` attribute will be corrected by the `ListEditing` converters.\n\t\t\t\t\t// We need to adjust the `listStyle` attribute. Expected structure:\n\t\t\t\t\t//\n\t\t\t\t\t// ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ List item 1.1. // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ First. // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ Second // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\tconst previousSibling = item.previousSibling;\n\n\t\t\t\t\tif ( shouldInheritListTypeFromPreviousItem( previousSibling, item, strategy.attributeName ) ) {\n\t\t\t\t\t\twriter.setAttribute( attributeName, previousSibling.getAttribute( attributeName ), item );\n\n\t\t\t\t\t\twasFixed = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn wasFixed;\n\t};\n}\n\n// Checks whether the `listStyle`, `listReversed` and `listStart` attributes\n// should be copied from the `baseItem` element.\n//\n// The attribute should be copied if the inserted element does not have defined it and\n// the value for the element is other than default in the base element.\n//\n// @param {module:engine/model/element~Element|null} baseItem\n// @param {module:engine/model/element~Element} itemToChange\n// @param {module:list/listpropertiesediting~AttributeStrategy} attributeStrategy\n// @returns {Boolean}\nfunction shouldInheritListType( baseItem, itemToChange, attributeStrategy ) {\n\tif ( !baseItem ) {\n\t\treturn false;\n\t}\n\n\tconst baseListAttribute = baseItem.getAttribute( attributeStrategy.attributeName );\n\n\tif ( !baseListAttribute ) {\n\t\treturn false;\n\t}\n\n\tif ( baseListAttribute == attributeStrategy.defaultValue ) {\n\t\treturn false;\n\t}\n\n\tif ( baseItem.getAttribute( 'listType' ) !== itemToChange.getAttribute( 'listType' ) ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n// Checks whether the `listStyle`, `listReversed` and `listStart` attributes\n// should be copied from previous list item.\n//\n// The attribute should be copied if there's a mismatch of styles of the pasted list into a nested list.\n// Top-level lists are not normalized as we allow side-by-side list of different types.\n//\n// @param {module:engine/model/element~Element|null} previousItem\n// @param {module:engine/model/element~Element} itemToChange\n// @returns {Boolean}\nfunction shouldInheritListTypeFromPreviousItem( previousItem, itemToChange, attributeName ) {\n\tif ( !previousItem || !previousItem.is( 'element', 'listItem' ) ) {\n\t\treturn false;\n\t}\n\n\tif ( itemToChange.getAttribute( 'listType' ) !== previousItem.getAttribute( 'listType' ) ) {\n\t\treturn false;\n\t}\n\n\tconst previousItemIndent = previousItem.getAttribute( 'listIndent' );\n\n\tif ( previousItemIndent < 1 || previousItemIndent !== itemToChange.getAttribute( 'listIndent' ) ) {\n\t\treturn false;\n\t}\n\n\tconst previousItemListAttribute = previousItem.getAttribute( attributeName );\n\n\tif ( !previousItemListAttribute || previousItemListAttribute === itemToChange.getAttribute( attributeName ) ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n// Removes the `listStyle`, `listReversed` and `listStart` attributes from \"todo\" list items.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @returns {Function}\nfunction removeListItemAttributesFromTodoList( editor ) {\n\treturn writer => {\n\t\tconst todoListItems = getChangedListItems( editor.model.document.differ.getChanges() )\n\t\t\t.filter( item => {\n\t\t\t\t// Handle the todo lists only. The rest is handled in another post-fixer.\n\t\t\t\treturn item.getAttribute( 'listType' ) === 'todo' && (\n\t\t\t\t\titem.hasAttribute( 'listStyle' ) ||\n\t\t\t\t\titem.hasAttribute( 'listReversed' ) ||\n\t\t\t\t\titem.hasAttribute( 'listStart' )\n\t\t\t\t);\n\t\t\t} );\n\n\t\tif ( !todoListItems.length ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tfor ( const item of todoListItems ) {\n\t\t\twriter.removeAttribute( 'listStyle', item );\n\t\t\twriter.removeAttribute( 'listReversed', item );\n\t\t\twriter.removeAttribute( 'listStart', item );\n\t\t}\n\n\t\treturn true;\n\t};\n}\n\n// Restores the `listStyle` attribute after changing the list type.\n//\n// @param {module:core/editor/editor~Editor} editor\n// @returns {Function}\nfunction restoreDefaultListStyle( editor ) {\n\treturn ( evt, changedItems ) => {\n\t\tchangedItems = changedItems.filter( item => item.is( 'element', 'listItem' ) );\n\n\t\teditor.model.change( writer => {\n\t\t\tfor ( const item of changedItems ) {\n\t\t\t\t// Remove the attribute. Post-fixer will restore the proper value.\n\t\t\t\twriter.removeAttribute( 'listStyle', item );\n\t\t\t}\n\t\t} );\n\t};\n}\n\n// Returns the `listItem` that was inserted or changed.\n//\n// @param {Array.<Object>} changes The changes list returned by the differ.\n// @returns {Array.<module:engine/model/element~Element>}\nfunction getChangedListItems( changes ) {\n\tconst items = [];\n\n\tfor ( const change of changes ) {\n\t\tconst item = getItemFromChange( change );\n\n\t\tif ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\titems.push( item );\n\t\t}\n\t}\n\n\treturn items;\n}\n\nfunction getItemFromChange( change ) {\n\tif ( change.type === 'attribute' ) {\n\t\treturn change.range.start.nodeAfter;\n\t}\n\n\tif ( change.type === 'insert' ) {\n\t\treturn change.position.nodeAfter;\n\t}\n\n\treturn null;\n}\n\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./collapsible.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/ui/collapsibleview\n */\n\nimport { View, ButtonView } from 'ckeditor5/src/ui';\n\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport dropdownArrowIcon from '@ckeditor/ckeditor5-ui/theme/icons/dropdown-arrow.svg';\n\nimport '../../../theme/collapsible.css';\n\n/**\n * A collapsible UI component. Consists of a labeled button and a container which can be collapsed\n * by clicking the button. The collapsible container can be a host to other UI views.\n *\n * @protected\n * @extends module:ui/view~View\n */\nexport default class CollapsibleView extends View {\n\t/**\n\t * Creates an instance of the collapsible view.\n\t *\n\t * @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param {Array.<module:ui/view~View>} [childViews] An optional array of initial child views to be inserted\n\t * into the collapsible.\n\t */\n\tconstructor( locale, childViews ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * `true` when the container with {@link #children} is collapsed. `false` otherwise.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isCollapsed\n\t\t */\n\t\tthis.set( 'isCollapsed', false );\n\n\t\t/**\n\t\t * The text label of the {@link #buttonView}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #label\n\t\t * @default 'Show more'\n\t\t */\n\t\tthis.set( 'label', '' );\n\n\t\t/**\n\t\t * The main button that, when clicked, collapses or expands the container with {@link #children}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/button/buttonview~ButtonView} #buttonView\n\t\t */\n\t\tthis.buttonView = this._createButtonView();\n\n\t\t/**\n\t\t * A collection of the child views that can be collapsed by clicking the {@link #buttonView}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection} #children\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\t/**\n\t\t * The ID of the label inside the {@link #buttonView} that describes the collapsible\n\t\t * container for assistive technologies. Set after the button was {@link #render rendered}.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {String} #_collapsibleAriaLabelUid\n\t\t */\n\t\tthis.set( '_collapsibleAriaLabelUid' );\n\n\t\tif ( childViews ) {\n\t\t\tthis.children.addMany( childViews );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-collapsible',\n\t\t\t\t\tbind.if( 'isCollapsed', 'ck-collapsible_collapsed' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis.buttonView,\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-collapsible__children'\n\t\t\t\t\t\t],\n\t\t\t\t\t\trole: 'region',\n\t\t\t\t\t\thidden: bind.if( 'isCollapsed', 'hidden' ),\n\t\t\t\t\t\t'aria-labelledby': bind.to( '_collapsibleAriaLabelUid' )\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.children\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\tthis._collapsibleAriaLabelUid = this.buttonView.labelView.element.id;\n\t}\n\n\t/**\n\t * Creates the main {@link #buttonView} of the collapsible.\n\t *\n\t * @private\n\t * @returns {module:ui/button/buttonview~ButtonView}\n\t */\n\t_createButtonView() {\n\t\tconst buttonView = new ButtonView( this.locale );\n\t\tconst bind = buttonView.bindTemplate;\n\n\t\tbuttonView.set( {\n\t\t\twithText: true,\n\t\t\ticon: dropdownArrowIcon\n\t\t} );\n\n\t\tbuttonView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\t'aria-expanded': bind.to( 'isOn', value => String( value ) )\n\t\t\t}\n\t\t} );\n\n\t\tbuttonView.bind( 'label' ).to( this );\n\t\tbuttonView.bind( 'isOn' ).to( this, 'isCollapsed', isCollapsed => !isCollapsed );\n\n\t\tbuttonView.on( 'execute', () => {\n\t\t\tthis.isCollapsed = !this.isCollapsed;\n\t\t} );\n\n\t\treturn buttonView;\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./listproperties.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/ui/listpropertiesview\n */\n\nimport {\n\tView,\n\tViewCollection,\n\tFocusCycler,\n\tSwitchButtonView,\n\tLabeledFieldView,\n\tcreateLabeledInputNumber,\n\taddKeyboardHandlingForGrid\n} from 'ckeditor5/src/ui';\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\tglobal\n} from 'ckeditor5/src/utils';\n\nimport CollapsibleView from './collapsibleview';\n\nimport '../../../theme/listproperties.css';\n\n/**\n * The list properties view to be displayed in the list dropdown.\n *\n * Contains a grid of available list styles and, for numbered list, also the list start index and reversed fields.\n *\n * @extends module:ui/view~View\n */\nexport default class ListPropertiesView extends View {\n\t/**\n\t * Creates an instance of the list properties view.\n\t *\n\t * @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param {Object} options Options of the view.\n\t * @param {Object.<String,Boolean>} options.enabledProperties An object containing the configuration of enabled list property names.\n\t * Allows conditional rendering the sub-components of the properties view.\n\t * @param {Array.<module:ui/button/buttonview~ButtonView>|null} options.styleButtonViews A list of style buttons to be rendered\n\t * inside the styles grid. The grid will not be rendered when `enabledProperties` does not include the `'styles'` key.\n\t * @param {String} options.styleGridAriaLabel An assistive technologies label set on the grid of styles (if the grid is rendered).\n\t */\n\tconstructor( locale, { enabledProperties, styleButtonViews, styleGridAriaLabel } ) {\n\t\tsuper( locale );\n\n\t\tconst elementCssClasses = [\n\t\t\t'ck',\n\t\t\t'ck-list-properties'\n\t\t];\n\n\t\t/**\n\t\t * A collection of the child views.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\t/**\n\t\t * A view that renders the grid of list styles.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/view~View|null}\n\t\t */\n\t\tthis.stylesView = null;\n\n\t\t/**\n\t\t * A collapsible view that hosts additional list property fields ({@link #startIndexFieldView} and\n\t\t * {@link #reversedSwitchButtonView}) to visually separate them from the {@link #stylesView grid of styles}.\n\t\t *\n\t\t * **Note**: Only present when:\n\t\t * * the view represents **numbered** list properties,\n\t\t * * and the {@link #stylesView} is rendered,\n\t\t * * and either {@link #startIndexFieldView} or {@link #reversedSwitchButtonView} is rendered.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:list/ui/collapsibleview~CollapsibleView|null}\n\t\t */\n\t\tthis.additionalPropertiesCollapsibleView = null;\n\n\t\t/**\n\t\t * A labeled number field allowing the user to set the start index of the list.\n\t\t *\n\t\t * **Note**: Only present when the view represents **numbered** list properties.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/labeledfield/labeledfieldview~LabeledFieldView|null}\n\t\t */\n\t\tthis.startIndexFieldView = null;\n\n\t\t/**\n\t\t * A switch button allowing the user to make the edited list reversed.\n\t\t *\n\t\t * **Note**: Only present when the view represents **numbered** list properties.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/button/switchbuttonview~SwitchButtonView|null}\n\t\t */\n\t\tthis.reversedSwitchButtonView = null;\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * A collection of views that can be focused in the properties view.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Helps cycling over {@link #focusables} in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis.focusCycler = new FocusCycler( {\n\t\t\tfocusables: this.focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate #children backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate #children forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\t// The rendering of the styles grid is conditional. When there is no styles grid, the view will render without collapsible\n\t\t// for numbered list properties, hence simplifying the layout.\n\t\tif ( enabledProperties.styles ) {\n\t\t\tthis.stylesView = this._createStylesView( styleButtonViews, styleGridAriaLabel );\n\t\t\tthis.children.add( this.stylesView );\n\t\t} else {\n\t\t\telementCssClasses.push( 'ck-list-properties_without-styles' );\n\t\t}\n\n\t\t// The rendering of the numbered list property views is also conditional. It only makes sense for the numbered list\n\t\t// dropdown. The unordered list does not have such properties.\n\t\tif ( enabledProperties.startIndex || enabledProperties.reversed ) {\n\t\t\tthis._addNumberedListPropertyViews( enabledProperties, styleButtonViews );\n\n\t\t\telementCssClasses.push( 'ck-list-properties_with-numbered-properties' );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: elementCssClasses\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\tif ( this.stylesView ) {\n\t\t\tthis.focusables.add( this.stylesView );\n\t\t\tthis.focusTracker.add( this.stylesView.element );\n\n\t\t\t// Register the collapsible toggle button to the focus system.\n\t\t\tif ( this.startIndexFieldView || this.reversedSwitchButtonView ) {\n\t\t\t\tthis.focusables.add( this.children.last.buttonView );\n\t\t\t\tthis.focusTracker.add( this.children.last.buttonView.element );\n\t\t\t}\n\n\t\t\tfor ( const item of this.stylesView.children ) {\n\t\t\t\tthis.stylesView.focusTracker.add( item.element );\n\t\t\t}\n\n\t\t\taddKeyboardHandlingForGrid( {\n\t\t\t\tkeystrokeHandler: this.stylesView.keystrokes,\n\t\t\t\tfocusTracker: this.stylesView.focusTracker,\n\t\t\t\tgridItems: this.stylesView.children,\n\t\t\t\t// Note: The styles view has a different number of columns depending on whether the other properties\n\t\t\t\t// are enabled in the dropdown or not (https://github.com/ckeditor/ckeditor5/issues/12340)\n\t\t\t\tnumberOfColumns: () => global.window\n\t\t\t\t\t.getComputedStyle( this.stylesView.element )\n\t\t\t\t\t.getPropertyValue( 'grid-template-columns' )\n\t\t\t\t\t.split( ' ' )\n\t\t\t\t\t.length,\n\t\t\t\tuiLanguageDirection: this.locale && this.locale.uiLanguageDirection\n\t\t\t} );\n\t\t}\n\n\t\tif ( this.startIndexFieldView ) {\n\t\t\tthis.focusables.add( this.startIndexFieldView );\n\t\t\tthis.focusTracker.add( this.startIndexFieldView.element );\n\n\t\t\t// Intercept the `selectstart` event, which is blocked by default because of the default behavior\n\t\t\t// of the DropdownView#panelView.\n\t\t\t// TODO: blocking `selectstart` in the #panelView should be configurable per–drop–down instance.\n\t\t\tthis.listenTo( this.startIndexFieldView.element, 'selectstart', ( evt, domEvt ) => {\n\t\t\t\tdomEvt.stopPropagation();\n\t\t\t}, { priority: 'high' } );\n\n\t\t\tconst stopPropagation = data => data.stopPropagation();\n\n\t\t\t// Since the form is in the dropdown panel which is a child of the toolbar, the toolbar's\n\t\t\t// keystroke handler would take over the key management in the input. We need to prevent\n\t\t\t// this ASAP. Otherwise, the basic caret movement using the arrow keys will be impossible.\n\t\t\tthis.keystrokes.set( 'arrowright', stopPropagation );\n\t\t\tthis.keystrokes.set( 'arrowleft', stopPropagation );\n\t\t\tthis.keystrokes.set( 'arrowup', stopPropagation );\n\t\t\tthis.keystrokes.set( 'arrowdown', stopPropagation );\n\t\t}\n\n\t\tif ( this.reversedSwitchButtonView ) {\n\t\t\tthis.focusables.add( this.reversedSwitchButtonView );\n\t\t\tthis.focusTracker.add( this.reversedSwitchButtonView.element );\n\t\t}\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tfocus() {\n\t\tthis.focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tfocusLast() {\n\t\tthis.focusCycler.focusLast();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Creates the list styles grid.\n\t *\n\t * @protected\n\t * @param {Array.<module:ui/button/buttonview~ButtonView>} styleButtons Buttons to be placed in the grid.\n\t * @param {String} styleGridAriaLabel The assistive technology label of the grid.\n\t * @returns {module:ui/view~View}\n\t */\n\t_createStylesView( styleButtons, styleGridAriaLabel ) {\n\t\tconst stylesView = new View( this.locale );\n\n\t\tstylesView.children = stylesView.createCollection( this.locale );\n\t\tstylesView.children.addMany( styleButtons );\n\n\t\tstylesView.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\t'aria-label': styleGridAriaLabel,\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-list-styles-list'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: stylesView.children\n\t\t} );\n\n\t\tstylesView.children.delegate( 'execute' ).to( this );\n\n\t\tstylesView.focus = function() {\n\t\t\tthis.children.first.focus();\n\t\t};\n\n\t\tstylesView.focusTracker = new FocusTracker();\n\t\tstylesView.keystrokes = new KeystrokeHandler();\n\n\t\tstylesView.render();\n\n\t\tstylesView.keystrokes.listenTo( stylesView.element );\n\n\t\treturn stylesView;\n\t}\n\n\t/**\n\t * Renders {@link #startIndexFieldView} and/or {@link #reversedSwitchButtonView} depending on the configuration of the properties view.\n\t *\n\t * @private\n\t * @param {Object.<String,Boolean>} options.enabledProperties An object containing the configuration of enabled list property names\n\t * (see {@link #constructor}).\n\t */\n\t_addNumberedListPropertyViews( enabledProperties ) {\n\t\tconst t = this.locale.t;\n\t\tconst numberedPropertyViews = [];\n\n\t\tif ( enabledProperties.startIndex ) {\n\t\t\tthis.startIndexFieldView = this._createStartIndexField();\n\t\t\tnumberedPropertyViews.push( this.startIndexFieldView );\n\t\t}\n\n\t\tif ( enabledProperties.reversed ) {\n\t\t\tthis.reversedSwitchButtonView = this._createReversedSwitchButton();\n\t\t\tnumberedPropertyViews.push( this.reversedSwitchButtonView );\n\t\t}\n\n\t\t// When there are some style buttons, pack the numbered list properties into a collapsible to separate them.\n\t\tif ( enabledProperties.styles ) {\n\t\t\tthis.additionalPropertiesCollapsibleView = new CollapsibleView( this.locale, numberedPropertyViews );\n\n\t\t\tthis.additionalPropertiesCollapsibleView.set( {\n\t\t\t\tlabel: t( 'List properties' ),\n\t\t\t\tisCollapsed: true\n\t\t\t} );\n\n\t\t\t// Don't enable the collapsible view unless either start index or reversed field is enabled (e.g. when no list is selected).\n\t\t\tthis.additionalPropertiesCollapsibleView.buttonView.bind( 'isEnabled' ).toMany(\n\t\t\t\tnumberedPropertyViews, 'isEnabled', ( ...areEnabled ) => areEnabled.some( isEnabled => isEnabled ) );\n\n\t\t\t// Automatically collapse the additional properties collapsible when either start index or reversed field gets disabled.\n\t\t\tthis.additionalPropertiesCollapsibleView.buttonView.on( 'change:isEnabled', ( evt, data, isEnabled ) => {\n\t\t\t\tif ( !isEnabled ) {\n\t\t\t\t\tthis.additionalPropertiesCollapsibleView.isCollapsed = true;\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tthis.children.add( this.additionalPropertiesCollapsibleView );\n\t\t} else {\n\t\t\tthis.children.addMany( numberedPropertyViews );\n\t\t}\n\t}\n\n\t/**\n\t * Creates the list start index labeled field.\n\t *\n\t * @private\n\t * @protected\n\t * @returns {module:ui/labeledfield/labeledfieldview~LabeledFieldView}\n\t */\n\t_createStartIndexField() {\n\t\tconst t = this.locale.t;\n\t\tconst startIndexFieldView = new LabeledFieldView( this.locale, createLabeledInputNumber );\n\n\t\tstartIndexFieldView.set( {\n\t\t\tlabel: t( 'Start at' ),\n\t\t\tclass: 'ck-numbered-list-properties__start-index'\n\t\t} );\n\n\t\tstartIndexFieldView.fieldView.set( {\n\t\t\tmin: 0,\n\t\t\tstep: 1,\n\t\t\tvalue: 1,\n\t\t\tinputMode: 'numeric'\n\t\t} );\n\n\t\tstartIndexFieldView.fieldView.on( 'input', () => {\n\t\t\tconst inputElement = startIndexFieldView.fieldView.element;\n\t\t\tconst startIndex = inputElement.valueAsNumber;\n\n\t\t\tif ( Number.isNaN( startIndex ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !inputElement.checkValidity() ) {\n\t\t\t\tstartIndexFieldView.errorText = t( 'Start index must be greater than 0.' );\n\t\t\t} else {\n\t\t\t\tthis.fire( 'listStart', { startIndex } );\n\t\t\t}\n\t\t} );\n\n\t\treturn startIndexFieldView;\n\t}\n\n\t/**\n\t * Creates the reversed list switch button.\n\t *\n\t * @private\n\t * @protected\n\t * @returns {module:ui/button/switchbuttonview~SwitchButtonView}\n\t */\n\t_createReversedSwitchButton() {\n\t\tconst t = this.locale.t;\n\t\tconst reversedButtonView = new SwitchButtonView( this.locale );\n\n\t\treversedButtonView.set( {\n\t\t\twithText: true,\n\t\t\tlabel: t( 'Reversed order' ),\n\t\t\tclass: 'ck-numbered-list-properties__reversed-order'\n\t\t} );\n\n\t\treversedButtonView.delegate( 'execute' ).to( this, 'listReversed' );\n\n\t\treturn reversedButtonView;\n\t}\n\n\t/**\n\t * Fired when the list start index value has changed via {@link #startIndexFieldView}.\n\t *\n\t * @event listStart\n\t * @param {Object} data\n\t * @param {Number} data.startIndex The new start index of the list.\n\t */\n\n\t/**\n\t * Fired when the list order has changed (reversed) via {@link #reversedSwitchButtonView}.\n\t *\n\t * @event listReversed\n\t */\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./liststyles.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/listpropertiesui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView, SplitButtonView, createDropdown, focusChildOnDropdownOpen } from 'ckeditor5/src/ui';\n\nimport ListPropertiesView from './ui/listpropertiesview';\n\nimport bulletedListIcon from '../../theme/icons/bulletedlist.svg';\nimport numberedListIcon from '../../theme/icons/numberedlist.svg';\n\nimport listStyleDiscIcon from '../../theme/icons/liststyledisc.svg';\nimport listStyleCircleIcon from '../../theme/icons/liststylecircle.svg';\nimport listStyleSquareIcon from '../../theme/icons/liststylesquare.svg';\nimport listStyleDecimalIcon from '../../theme/icons/liststyledecimal.svg';\nimport listStyleDecimalWithLeadingZeroIcon from '../../theme/icons/liststyledecimalleadingzero.svg';\nimport listStyleLowerRomanIcon from '../../theme/icons/liststylelowerroman.svg';\nimport listStyleUpperRomanIcon from '../../theme/icons/liststyleupperroman.svg';\nimport listStyleLowerLatinIcon from '../../theme/icons/liststylelowerlatin.svg';\nimport listStyleUpperLatinIcon from '../../theme/icons/liststyleupperlatin.svg';\n\nimport '../../theme/liststyles.css';\n\n/**\n * The list properties UI plugin. It introduces the extended `'bulletedList'` and `'numberedList'` toolbar\n * buttons that allow users to control such aspects of list as the marker, start index or order.\n *\n * **Note**: Buttons introduced by this plugin override implementations from the {@link module:list/list/listui~ListUI}\n * (because they share the same names).\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ListPropertiesUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ListPropertiesUI';\n\t}\n\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.locale.t;\n\t\tconst enabledProperties = editor.config.get( 'list.properties' );\n\n\t\t// Note: When this plugin does not register the \"bulletedList\" dropdown due to properties configuration,\n\t\t// a simple button will be still registered under the same name by ListUI as a fallback. This should happen\n\t\t// in most editor configuration because the List plugin automatically requires ListUI.\n\t\tif ( enabledProperties.styles ) {\n\t\t\teditor.ui.componentFactory.add( 'bulletedList', getDropdownViewCreator( {\n\t\t\t\teditor,\n\t\t\t\tparentCommandName: 'bulletedList',\n\t\t\t\tbuttonLabel: t( 'Bulleted List' ),\n\t\t\t\tbuttonIcon: bulletedListIcon,\n\t\t\t\tstyleGridAriaLabel: t( 'Bulleted list styles toolbar' ),\n\t\t\t\tstyleDefinitions: [\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the disc list style' ),\n\t\t\t\t\t\ttooltip: t( 'Disc' ),\n\t\t\t\t\t\ttype: 'disc',\n\t\t\t\t\t\ticon: listStyleDiscIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the circle list style' ),\n\t\t\t\t\t\ttooltip: t( 'Circle' ),\n\t\t\t\t\t\ttype: 'circle',\n\t\t\t\t\t\ticon: listStyleCircleIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the square list style' ),\n\t\t\t\t\t\ttooltip: t( 'Square' ),\n\t\t\t\t\t\ttype: 'square',\n\t\t\t\t\t\ticon: listStyleSquareIcon\n\t\t\t\t\t}\n\t\t\t\t]\n\t\t\t} ) );\n\t\t}\n\n\t\t// Note: When this plugin does not register the \"numberedList\" dropdown due to properties configuration,\n\t\t// a simple button will be still registered under the same name by ListUI as a fallback. This should happen\n\t\t// in most editor configuration because the List plugin automatically requires ListUI.\n\t\tif ( enabledProperties.styles || enabledProperties.startIndex || enabledProperties.reversed ) {\n\t\t\teditor.ui.componentFactory.add( 'numberedList', getDropdownViewCreator( {\n\t\t\t\teditor,\n\t\t\t\tparentCommandName: 'numberedList',\n\t\t\t\tbuttonLabel: t( 'Numbered List' ),\n\t\t\t\tbuttonIcon: numberedListIcon,\n\t\t\t\tstyleGridAriaLabel: t( 'Numbered list styles toolbar' ),\n\t\t\t\tstyleDefinitions: [\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the decimal list style' ),\n\t\t\t\t\t\ttooltip: t( 'Decimal' ),\n\t\t\t\t\t\ttype: 'decimal',\n\t\t\t\t\t\ticon: listStyleDecimalIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the decimal with leading zero list style' ),\n\t\t\t\t\t\ttooltip: t( 'Decimal with leading zero' ),\n\t\t\t\t\t\ttype: 'decimal-leading-zero',\n\t\t\t\t\t\ticon: listStyleDecimalWithLeadingZeroIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the lower–roman list style' ),\n\t\t\t\t\t\ttooltip: t( 'Lower–roman' ),\n\t\t\t\t\t\ttype: 'lower-roman',\n\t\t\t\t\t\ticon: listStyleLowerRomanIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the upper–roman list style' ),\n\t\t\t\t\t\ttooltip: t( 'Upper-roman' ),\n\t\t\t\t\t\ttype: 'upper-roman',\n\t\t\t\t\t\ticon: listStyleUpperRomanIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the lower–latin list style' ),\n\t\t\t\t\t\ttooltip: t( 'Lower-latin' ),\n\t\t\t\t\t\ttype: 'lower-latin',\n\t\t\t\t\t\ticon: listStyleLowerLatinIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the upper–latin list style' ),\n\t\t\t\t\t\ttooltip: t( 'Upper-latin' ),\n\t\t\t\t\t\ttype: 'upper-latin',\n\t\t\t\t\t\ticon: listStyleUpperLatinIcon\n\t\t\t\t\t}\n\t\t\t\t]\n\t\t\t} ) );\n\t\t}\n\t}\n}\n\n// A helper that returns a function that creates a split button with a toolbar in the dropdown,\n// which in turn contains buttons allowing users to change list styles in the context of the current selection.\n//\n// @param {Object} options\n// @param {module:core/editor/editor~Editor} options.editor\n// @param {'bulletedList'|'numberedList'} options.parentCommandName The name of the higher-order editor command associated with\n// the set of particular list styles (e.g. \"bulletedList\" for \"disc\", \"circle\", and \"square\" styles).\n// @param {String} options.buttonLabel Label of the main part of the split button.\n// @param {String} options.buttonIcon The SVG string of an icon for the main part of the split button.\n// @param {String} options.styleGridAriaLabel The ARIA label for the styles grid in the split button dropdown.\n// @param {Object} options.styleDefinitions Definitions of the style buttons.\n// @returns {Function} A function that can be passed straight into {@link module:ui/componentfactory~ComponentFactory#add}.\nfunction getDropdownViewCreator( { editor, parentCommandName, buttonLabel, buttonIcon, styleGridAriaLabel, styleDefinitions } ) {\n\tconst parentCommand = editor.commands.get( parentCommandName );\n\n\t// @param {module:utils/locale~Locale} locale\n\t// @returns {module:ui/dropdown/dropdownview~DropdownView}\n\treturn locale => {\n\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\tconst mainButtonView = dropdownView.buttonView;\n\n\t\tdropdownView.bind( 'isEnabled' ).to( parentCommand );\n\t\tdropdownView.class = 'ck-list-styles-dropdown';\n\n\t\t// Main button was clicked.\n\t\tmainButtonView.on( 'execute', () => {\n\t\t\teditor.execute( parentCommandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\tmainButtonView.set( {\n\t\t\tlabel: buttonLabel,\n\t\t\ticon: buttonIcon,\n\t\t\ttooltip: true,\n\t\t\tisToggleable: true\n\t\t} );\n\n\t\tmainButtonView.bind( 'isOn' ).to( parentCommand, 'value', value => !!value );\n\n\t\tconst listPropertiesView = createListPropertiesView( {\n\t\t\teditor,\n\t\t\tdropdownView,\n\t\t\tparentCommandName,\n\t\t\tstyleGridAriaLabel,\n\t\t\tstyleDefinitions\n\t\t} );\n\n\t\tdropdownView.panelView.children.add( listPropertiesView );\n\n\t\t// Focus the editable after executing the command.\n\t\t// Overrides a default behaviour where the focus is moved to the dropdown button (#12125).\n\t\tdropdownView.on( 'execute', () => {\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn dropdownView;\n\t};\n}\n\n// A helper that returns a function (factory) that creates individual buttons used by users to change styles\n// of lists.\n//\n// @param {Object} options\n// @param {module:core/editor/editor~Editor} options.editor\n// @param {module:list/liststylecommand~ListStylesCommand} options.listStyleCommand The instance of the `ListStylesCommand` class.\n// @param {'bulletedList'|'numberedList'} options.parentCommandName The name of the higher-order command associated with a\n// particular list style (e.g. \"bulletedList\" is associated with \"square\" and \"numberedList\" is associated with \"roman\").\n// @returns {Function} A function that can be passed straight into {@link module:ui/componentfactory~ComponentFactory#add}.\nfunction getStyleButtonCreator( { editor, listStyleCommand, parentCommandName } ) {\n\tconst locale = editor.locale;\n\tconst parentCommand = editor.commands.get( parentCommandName );\n\n\t// @param {String} label The label of the style button.\n\t// @param {String} type The type of the style button (e.g. \"roman\" or \"circle\").\n\t// @param {String} icon The SVG string of an icon of the style button.\n\t// @param {String} tooltip The tooltip text of the button (shorter than verbose label).\n\t// @returns {module:ui/button/buttonview~ButtonView}\n\treturn ( { label, type, icon, tooltip } ) => {\n\t\tconst button = new ButtonView( locale );\n\n\t\tbutton.set( { label, icon, tooltip } );\n\n\t\tlistStyleCommand.on( 'change:value', () => {\n\t\t\tbutton.isOn = listStyleCommand.value === type;\n\t\t} );\n\n\t\tbutton.on( 'execute', () => {\n\t\t\t// If the content the selection is anchored to is a list, let's change its style.\n\t\t\tif ( parentCommand.value ) {\n\t\t\t\t// If the current list style is not set in the model or the style is different than the\n\t\t\t\t// one to be applied, simply apply the new style.\n\t\t\t\tif ( listStyleCommand.value !== type ) {\n\t\t\t\t\teditor.execute( 'listStyle', { type } );\n\t\t\t\t}\n\t\t\t\t// If the style was the same, remove it (the button works as an off toggle).\n\t\t\t\telse {\n\t\t\t\t\teditor.execute( 'listStyle', { type: listStyleCommand._defaultType } );\n\t\t\t\t}\n\t\t\t}\n\t\t\t// Otherwise, leave the creation of the styled list to the `ListStyleCommand`.\n\t\t\telse {\n\t\t\t\teditor.model.change( () => {\n\t\t\t\t\teditor.execute( 'listStyle', { type } );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\n\t\treturn button;\n\t};\n}\n\n// A helper that creates the properties view for the individual style dropdown.\n//\n// @param {Object} options\n// @param {module:core/editor/editor~Editor} options.editor Editor instance.\n// @param {module:ui/dropdown/dropdownview~DropdownView} options.dropdownView Styles dropdown view that hosts the properties view.\n// @param {'bulletedList'|'numberedList'} options.parentCommandName The name of the higher-order editor command associated with\n// the set of particular list styles (e.g. \"bulletedList\" for \"disc\", \"circle\", and \"square\" styles).\n// @param {Object} options.styleDefinitions Definitions of the style buttons.\n// @param {String} options.styleGridAriaLabel An assistive technologies label set on the grid of styles (if the grid is rendered).\n// @returns {module:list/ui/listpropertiesview~ListPropertiesView}\nfunction createListPropertiesView( {\n\teditor,\n\tdropdownView,\n\tparentCommandName,\n\tstyleDefinitions,\n\tstyleGridAriaLabel\n} ) {\n\tconst locale = editor.locale;\n\tconst enabledProperties = editor.config.get( 'list.properties' );\n\tlet styleButtonViews;\n\n\tif ( parentCommandName != 'numberedList' ) {\n\t\tenabledProperties.startIndex = false;\n\t\tenabledProperties.reversed = false;\n\t}\n\n\tif ( enabledProperties.styles ) {\n\t\tconst listStyleCommand = editor.commands.get( 'listStyle' );\n\n\t\tconst styleButtonCreator = getStyleButtonCreator( {\n\t\t\teditor,\n\t\t\tparentCommandName,\n\t\t\tlistStyleCommand\n\t\t} );\n\n\t\t// The command can be ListStyleCommand or DocumentListStyleCommand.\n\t\tconst isStyleTypeSupported = typeof listStyleCommand.isStyleTypeSupported == 'function' ?\n\t\t\tstyleDefinition => listStyleCommand.isStyleTypeSupported( styleDefinition.type ) :\n\t\t\t() => true;\n\n\t\tstyleButtonViews = styleDefinitions.filter( isStyleTypeSupported ).map( styleButtonCreator );\n\t}\n\n\tconst listPropertiesView = new ListPropertiesView( locale, {\n\t\tstyleGridAriaLabel,\n\t\tenabledProperties,\n\t\tstyleButtonViews\n\t} );\n\n\tif ( enabledProperties.styles ) {\n\t\t// Accessibility: focus the first active style when opening the dropdown.\n\t\tfocusChildOnDropdownOpen( dropdownView, () => {\n\t\t\treturn listPropertiesView.stylesView.children.find( child => child.isOn );\n\t\t} );\n\t}\n\n\tif ( enabledProperties.startIndex ) {\n\t\tconst listStartCommand = editor.commands.get( 'listStart' );\n\n\t\tlistPropertiesView.startIndexFieldView.bind( 'isEnabled' ).to( listStartCommand );\n\t\tlistPropertiesView.startIndexFieldView.fieldView.bind( 'value' ).to( listStartCommand );\n\t\tlistPropertiesView.on( 'listStart', ( evt, data ) => editor.execute( 'listStart', data ) );\n\t}\n\n\tif ( enabledProperties.reversed ) {\n\t\tconst listReversedCommand = editor.commands.get( 'listReversed' );\n\n\t\tlistPropertiesView.reversedSwitchButtonView.bind( 'isEnabled' ).to( listReversedCommand );\n\t\tlistPropertiesView.reversedSwitchButtonView.bind( 'isOn' ).to( listReversedCommand, 'value' );\n\t\tlistPropertiesView.on( 'listReversed', () => {\n\t\t\tconst isReversed = listReversedCommand.value;\n\n\t\t\teditor.execute( 'listReversed', { reversed: !isReversed } );\n\t\t} );\n\t}\n\n\t// Make sure applying styles closes the dropdown.\n\tlistPropertiesView.delegate( 'execute' ).to( dropdownView );\n\n\treturn listPropertiesView;\n}\n","export default \"<svg viewBox=\\\"0 0 44 44\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z\\\" fill-opacity=\\\".163\\\"/><path d=\\\"M11 27a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 44 44\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 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25v-1.235h-1.234V25h1.234zm-5.018 9.11c.691 0 1.262-.17 1.711-.512.45-.341.772-.864.965-1.567l-1.261-.4c-.109.472-.287.818-.536 1.037-.25.22-.547.33-.892.33-.47 0-.85-.173-1.143-.519-.293-.345-.44-.925-.44-1.74 0-.767.15-1.322.447-1.665.297-.343.684-.514 1.162-.514.346 0 .64.096.881.29.242.193.4.457.477.79l1.288-.307c-.147-.516-.367-.911-.66-1.187-.492-.465-1.132-.698-1.92-.698-.902 0-1.63.296-2.184.89-.554.593-.83 1.426-.83 2.498 0 1.014.275 1.813.825 2.397.551.585 1.254.877 2.11.877zM14.88 34v-1.235h-1.234V34h1.234z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/checktodolistcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nconst attributeKey = 'todoListChecked';\n\n/**\n * The check to-do command.\n *\n * The command is registered by the {@link module:list/todolist/todolistediting~TodoListEditing} as\n * the `checkTodoList` editor command and it is also available via aliased `todoListCheck` name.\n *\n * @extends module:core/command~Command\n */\nexport default class CheckTodoListCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A flag indicating whether the command is active. The command is active when at least one of\n\t\t * {@link module:engine/model/selection~Selection selected} elements is a to-do list item.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #isEnabled\n\t\t */\n\n\t\t/**\n\t\t * A list of to-do list items selected by the {@link module:engine/model/selection~Selection}.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Array.<module:engine/model/element~Element>} #value\n\t\t */\n\n\t\t/**\n\t\t * A list of to-do list items selected by the {@link module:engine/model/selection~Selection}.\n\t\t *\n\t\t * @protected\n\t\t * @type {Array.<module:engine/model/element~Element>}\n\t\t */\n\t\tthis._selectedElements = [];\n\n\t\t// Refresh command before executing to be sure all values are up to date.\n\t\t// It is needed when selection has changed before command execution, in the same change block.\n\t\tthis.on( 'execute', () => {\n\t\t\tthis.refresh();\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Updates the command's {@link #value} and {@link #isEnabled} properties based on the current selection.\n\t */\n\trefresh() {\n\t\tthis._selectedElements = this._getSelectedItems();\n\t\tthis.value = this._selectedElements.every( element => !!element.getAttribute( 'todoListChecked' ) );\n\t\tthis.isEnabled = !!this._selectedElements.length;\n\t}\n\n\t/**\n\t * Gets all to-do list items selected by the {@link module:engine/model/selection~Selection}.\n\t *\n\t * @private\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\t_getSelectedItems() {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\n\t\tconst selectionRange = model.document.selection.getFirstRange();\n\t\tconst startElement = selectionRange.start.parent;\n\t\tconst elements = [];\n\n\t\tif ( schema.checkAttribute( startElement, attributeKey ) ) {\n\t\t\telements.push( startElement );\n\t\t}\n\n\t\tfor ( const item of selectionRange.getItems() ) {\n\t\t\tif ( schema.checkAttribute( item, attributeKey ) && !elements.includes( item ) ) {\n\t\t\t\telements.push( item );\n\t\t\t}\n\t\t}\n\n\t\treturn elements;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.forceValue] If set, it will force the command behavior. If `true`, the command will apply\n\t * the attribute. Otherwise, the command will remove the attribute. If not set, the command will look for its current\n\t * value to decide what it should do.\n\t */\n\texecute( options = {} ) {\n\t\tthis.editor.model.change( writer => {\n\t\t\tfor ( const element of this._selectedElements ) {\n\t\t\t\tconst value = ( options.forceValue === undefined ) ? !this.value : options.forceValue;\n\n\t\t\t\tif ( value ) {\n\t\t\t\t\twriter.setAttribute( attributeKey, true, element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( attributeKey, element );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/todolistconverters\n */\n\n/* global document */\n\nimport { createElement } from 'ckeditor5/src/utils';\n\nimport { generateLiInUl, injectViewList, positionAfterUiElements, findNestedList } from '../list/utils';\n\n/**\n * A model-to-view converter for the `listItem` model element insertion.\n *\n * It converts the `listItem` model element to an unordered list with a {@link module:engine/view/uielement~UIElement checkbox element}\n * at the beginning of each list item. It also merges the list with surrounding lists (if available).\n *\n * It is used by {@link module:engine/controller/editingcontroller~EditingController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n * @param {module:engine/model/model~Model} model Model instance.\n * @param {Function} onCheckboxChecked Callback function.\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelViewInsertion( model, onCheckboxChecked ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst consumable = conversionApi.consumable;\n\n\t\tif ( !consumable.test( data.item, 'insert' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listType' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listIndent' )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( data.item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelItem = data.item;\n\n\t\tconsumable.consume( modelItem, 'insert' );\n\t\tconsumable.consume( modelItem, 'attribute:listType' );\n\t\tconsumable.consume( modelItem, 'attribute:listIndent' );\n\t\tconsumable.consume( modelItem, 'attribute:todoListChecked' );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewItem = generateLiInUl( modelItem, conversionApi );\n\n\t\tconst isChecked = !!modelItem.getAttribute( 'todoListChecked' );\n\t\tconst checkmarkElement = createCheckmarkElement( modelItem, viewWriter, isChecked, onCheckboxChecked );\n\n\t\tconst span = viewWriter.createContainerElement( 'span', {\n\t\t\tclass: 'todo-list__label__description'\n\t\t} );\n\n\t\tviewWriter.addClass( 'todo-list', viewItem.parent );\n\t\tviewWriter.insert( viewWriter.createPositionAt( viewItem, 0 ), checkmarkElement );\n\t\tviewWriter.insert( viewWriter.createPositionAfter( checkmarkElement ), span );\n\n\t\tinjectViewList( modelItem, viewItem, conversionApi, model );\n\t};\n}\n\n/**\n * A model-to-view converter for the `listItem` model element insertion.\n *\n * It is used by {@link module:engine/controller/datacontroller~DataController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n * @param {module:engine/model/model~Model} model Model instance.\n * @returns {Function} Returns a conversion callback.\n */\nexport function dataModelViewInsertion( model ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst consumable = conversionApi.consumable;\n\n\t\tif ( !consumable.test( data.item, 'insert' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listType' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listIndent' )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( data.item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelItem = data.item;\n\n\t\tconsumable.consume( modelItem, 'insert' );\n\t\tconsumable.consume( modelItem, 'attribute:listType' );\n\t\tconsumable.consume( modelItem, 'attribute:listIndent' );\n\t\tconsumable.consume( modelItem, 'attribute:todoListChecked' );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewItem = generateLiInUl( modelItem, conversionApi );\n\n\t\tviewWriter.addClass( 'todo-list', viewItem.parent );\n\n\t\tconst label = viewWriter.createContainerElement( 'label', {\n\t\t\tclass: 'todo-list__label'\n\t\t} );\n\n\t\tconst checkbox = viewWriter.createEmptyElement( 'input', {\n\t\t\ttype: 'checkbox',\n\t\t\tdisabled: 'disabled'\n\t\t} );\n\n\t\tconst span = viewWriter.createContainerElement( 'span', {\n\t\t\tclass: 'todo-list__label__description'\n\t\t} );\n\n\t\tif ( modelItem.getAttribute( 'todoListChecked' ) ) {\n\t\t\tviewWriter.setAttribute( 'checked', 'checked', checkbox );\n\t\t}\n\n\t\tviewWriter.insert( viewWriter.createPositionAt( viewItem, 0 ), label );\n\t\tviewWriter.insert( viewWriter.createPositionAt( label, 0 ), checkbox );\n\t\tviewWriter.insert( viewWriter.createPositionAfter( checkbox ), span );\n\n\t\tinjectViewList( modelItem, viewItem, conversionApi, model );\n\t};\n}\n\n/**\n * A view-to-model converter for the checkbox element inside a view list item.\n *\n * It changes the `listType` of the model `listItem` to a `todo` value.\n * When a view checkbox element is marked as checked, an additional `todoListChecked=\"true\"` attribute is added to the model item.\n *\n * It is used by {@link module:engine/controller/datacontroller~DataController}.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the fired event.\n * @param {Object} data An object containing conversion input, a placeholder for conversion output and possibly other values.\n * @param {module:engine/conversion/upcastdispatcher~UpcastConversionApi} conversionApi Conversion interface to be used by the callback.\n */\nexport function dataViewModelCheckmarkInsertion( evt, data, conversionApi ) {\n\tconst modelCursor = data.modelCursor;\n\tconst modelItem = modelCursor.parent;\n\tconst viewItem = data.viewItem;\n\n\tif ( viewItem.getAttribute( 'type' ) != 'checkbox' || modelItem.name != 'listItem' || !modelCursor.isAtStart ) {\n\t\treturn;\n\t}\n\n\tif ( !conversionApi.consumable.consume( viewItem, { name: true } ) ) {\n\t\treturn;\n\t}\n\n\tconst writer = conversionApi.writer;\n\n\twriter.setAttribute( 'listType', 'todo', modelItem );\n\n\tif ( data.viewItem.hasAttribute( 'checked' ) ) {\n\t\twriter.setAttribute( 'todoListChecked', true, modelItem );\n\t}\n\n\tdata.modelRange = writer.createRange( modelCursor );\n}\n\n/**\n * A model-to-view converter for the `listType` attribute change on the `listItem` model element.\n *\n * This change means that the `<li>` element parent changes to `<ul class=\"todo-list\">` and a\n * {@link module:engine/view/uielement~UIElement checkbox UI element} is added at the beginning\n * of the list item element (or vice versa).\n *\n * This converter is preceded by {@link module:list/list/converters~modelViewChangeType} and followed by\n * {@link module:list/list/converters~modelViewMergeAfterChangeType} to handle splitting and merging surrounding lists of the same type.\n *\n * It is used by {@link module:engine/controller/editingcontroller~EditingController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param {Function} onCheckedChange Callback fired after clicking the checkbox UI element.\n * @param {module:engine/view/view~View} view Editing view controller.\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelViewChangeType( onCheckedChange, view ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewItem = conversionApi.mapper.toViewElement( data.item );\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\tconst labelElement = findLabel( viewItem, view );\n\n\t\tif ( data.attributeNewValue == 'todo' ) {\n\t\t\tconst isChecked = !!data.item.getAttribute( 'todoListChecked' );\n\t\t\tconst checkmarkElement = createCheckmarkElement( data.item, viewWriter, isChecked, onCheckedChange );\n\n\t\t\tconst span = viewWriter.createContainerElement( 'span', {\n\t\t\t\tclass: 'todo-list__label__description'\n\t\t\t} );\n\n\t\t\tconst itemRange = viewWriter.createRangeIn( viewItem );\n\t\t\tconst nestedList = findNestedList( viewItem );\n\n\t\t\tconst descriptionStart = positionAfterUiElements( itemRange.start );\n\t\t\tconst descriptionEnd = nestedList ? viewWriter.createPositionBefore( nestedList ) : itemRange.end;\n\t\t\tconst descriptionRange = viewWriter.createRange( descriptionStart, descriptionEnd );\n\n\t\t\tviewWriter.addClass( 'todo-list', viewItem.parent );\n\t\t\tviewWriter.move( descriptionRange, viewWriter.createPositionAt( span, 0 ) );\n\t\t\tviewWriter.insert( viewWriter.createPositionAt( viewItem, 0 ), checkmarkElement );\n\t\t\tviewWriter.insert( viewWriter.createPositionAfter( checkmarkElement ), span );\n\t\t} else if ( data.attributeOldValue == 'todo' ) {\n\t\t\tconst descriptionSpan = findDescription( viewItem, view );\n\n\t\t\tviewWriter.removeClass( 'todo-list', viewItem.parent );\n\t\t\tviewWriter.remove( labelElement );\n\t\t\tviewWriter.move( viewWriter.createRangeIn( descriptionSpan ), viewWriter.createPositionBefore( descriptionSpan ) );\n\t\t\tviewWriter.remove( descriptionSpan );\n\t\t}\n\t};\n}\n\n/**\n * A model-to-view converter for the `todoListChecked` attribute change on the `listItem` model element.\n *\n * It marks the {@link module:engine/view/uielement~UIElement checkbox UI element} as checked.\n *\n * It is used by {@link module:engine/controller/editingcontroller~EditingController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param {Function} onCheckedChange Callback fired after clicking the checkbox UI element.\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelViewChangeChecked( onCheckedChange ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\t// Do not convert `todoListChecked` attribute when to-do list item has changed to other list item.\n\t\t// This attribute will be removed by the model post fixer.\n\t\tif ( data.item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( data.item, 'attribute:todoListChecked' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { mapper, writer: viewWriter } = conversionApi;\n\t\tconst isChecked = !!data.item.getAttribute( 'todoListChecked' );\n\t\tconst viewItem = mapper.toViewElement( data.item );\n\t\t// Because of m -> v position mapper we can be sure checkbox is always at the beginning.\n\t\tconst oldCheckmarkElement = viewItem.getChild( 0 );\n\t\tconst newCheckmarkElement = createCheckmarkElement( data.item, viewWriter, isChecked, onCheckedChange );\n\n\t\tviewWriter.insert( viewWriter.createPositionAfter( oldCheckmarkElement ), newCheckmarkElement );\n\t\tviewWriter.remove( oldCheckmarkElement );\n\t};\n}\n\n/**\n * A model-to-view position at zero offset mapper.\n *\n * This helper ensures that position inside todo-list in the view is mapped after the checkbox.\n *\n * It only handles the position at the beginning of a list item as other positions are properly mapped be the default mapper.\n *\n * @param {module:engine/view/view~View} view\n * @return {Function}\n */\nexport function mapModelToViewPosition( view ) {\n\treturn ( evt, data ) => {\n\t\tconst modelPosition = data.modelPosition;\n\t\tconst parent = modelPosition.parent;\n\n\t\tif ( !parent.is( 'element', 'listItem' ) || parent.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewLi = data.mapper.toViewElement( parent );\n\t\tconst descSpan = findDescription( viewLi, view );\n\n\t\tif ( descSpan ) {\n\t\t\tdata.viewPosition = data.mapper.findPositionIn( descSpan, modelPosition.offset );\n\t\t}\n\t};\n}\n\n// Creates a checkbox UI element.\n//\n// @private\n// @param {module:engine/model/item~Item} modelItem\n// @param {module:engine/view/downcastwriter~DowncastWriter} viewWriter\n// @param {Boolean} isChecked\n// @param {Function} onChange\n// @returns {module:view/uielement~UIElement}\nfunction createCheckmarkElement( modelItem, viewWriter, isChecked, onChange ) {\n\tconst uiElement = viewWriter.createUIElement(\n\t\t'label',\n\t\t{\n\t\t\tclass: 'todo-list__label',\n\t\t\tcontenteditable: false\n\t\t},\n\t\tfunction( domDocument ) {\n\t\t\tconst checkbox = createElement( document, 'input', { type: 'checkbox', tabindex: -1 } );\n\n\t\t\tif ( isChecked ) {\n\t\t\t\tcheckbox.setAttribute( 'checked', 'checked' );\n\t\t\t}\n\n\t\t\tcheckbox.addEventListener( 'change', () => onChange( modelItem ) );\n\n\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\tdomElement.appendChild( checkbox );\n\n\t\t\treturn domElement;\n\t\t}\n\t);\n\n\treturn uiElement;\n}\n\n// Helper method to find label element inside li.\nfunction findLabel( viewItem, view ) {\n\tconst range = view.createRangeIn( viewItem );\n\n\tfor ( const value of range ) {\n\t\tif ( value.item.is( 'uiElement', 'label' ) ) {\n\t\t\treturn value.item;\n\t\t}\n\t}\n}\n\nfunction findDescription( viewItem, view ) {\n\tconst range = view.createRangeIn( viewItem );\n\n\tfor ( const value of range ) {\n\t\tif ( value.item.is( 'containerElement', 'span' ) && value.item.hasClass( 'todo-list__label__description' ) ) {\n\t\t\treturn value.item;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/todolistediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport {\n\tgetCode,\n\tparseKeystroke,\n\tgetLocalizedArrowKeyCodeDirection\n} from 'ckeditor5/src/utils';\n\nimport ListCommand from '../list/listcommand';\nimport ListEditing from '../list/listediting';\nimport CheckTodoListCommand from './checktodolistcommand';\nimport {\n\tdataModelViewInsertion,\n\tdataViewModelCheckmarkInsertion,\n\tmapModelToViewPosition,\n\tmodelViewChangeChecked,\n\tmodelViewChangeType,\n\tmodelViewInsertion\n} from './todolistconverters';\n\nconst ITEM_TOGGLE_KEYSTROKE = parseKeystroke( 'Ctrl+Enter' );\n\n/**\n * The engine of the to-do list feature. It handles creating, editing and removing to-do lists and their items.\n *\n * It registers the entire functionality of the {@link module:list/list/listediting~ListEditing list editing plugin} and extends\n * it with the commands:\n *\n * - `'todoList'`,\n * - `'checkTodoList'`,\n * - `'todoListCheck'` as an alias for `checkTodoList` command.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TodoListEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TodoListEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ListEditing ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst { editing, data, model } = editor;\n\n\t\t// Extend schema.\n\t\tmodel.schema.extend( 'listItem', {\n\t\t\tallowAttributes: [ 'todoListChecked' ]\n\t\t} );\n\n\t\t// Disallow todoListChecked attribute on other nodes than listItem with to-do listType.\n\t\tmodel.schema.addAttributeCheck( ( context, attributeName ) => {\n\t\t\tconst item = context.last;\n\n\t\t\tif ( attributeName == 'todoListChecked' && item.name == 'listItem' && item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\t// Register `todoList` command.\n\t\teditor.commands.add( 'todoList', new ListCommand( editor, 'todo' ) );\n\n\t\tconst checkTodoListCommand = new CheckTodoListCommand( editor );\n\n\t\t// Register `checkTodoList` command and add `todoListCheck` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'checkTodoList', checkTodoListCommand );\n\t\teditor.commands.add( 'todoListCheck', checkTodoListCommand );\n\n\t\t// Define converters.\n\t\tdata.downcastDispatcher.on( 'insert:listItem', dataModelViewInsertion( model ), { priority: 'high' } );\n\t\tdata.upcastDispatcher.on( 'element:input', dataViewModelCheckmarkInsertion, { priority: 'high' } );\n\n\t\tediting.downcastDispatcher.on(\n\t\t\t'insert:listItem',\n\t\t\tmodelViewInsertion( model, listItem => this._handleCheckmarkChange( listItem ) ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\t\tediting.downcastDispatcher.on(\n\t\t\t'attribute:listType:listItem',\n\t\t\tmodelViewChangeType( listItem => this._handleCheckmarkChange( listItem ), editing.view )\n\t\t);\n\t\tediting.downcastDispatcher.on(\n\t\t\t'attribute:todoListChecked:listItem',\n\t\t\tmodelViewChangeChecked( listItem => this._handleCheckmarkChange( listItem ) )\n\t\t);\n\n\t\tediting.mapper.on( 'modelToViewPosition', mapModelToViewPosition( editing.view ) );\n\t\tdata.mapper.on( 'modelToViewPosition', mapModelToViewPosition( editing.view ) );\n\n\t\t// Jump at the end of the previous node on left arrow key press, when selection is after the checkbox.\n\t\t//\n\t\t// <blockquote><p>Foo</p></blockquote>\n\t\t// <ul><li><checkbox/>{}Bar</li></ul>\n\t\t//\n\t\t// press: `<-`\n\t\t//\n\t\t// <blockquote><p>Foo{}</p></blockquote>\n\t\t// <ul><li><checkbox/>Bar</li></ul>\n\t\t//\n\t\tthis.listenTo( editing.view.document, 'arrowKey', jumpOverCheckmarkOnSideArrowKeyPress( model, editor.locale ), { context: 'li' } );\n\n\t\t// Toggle check state of selected to-do list items on keystroke.\n\t\tthis.listenTo( editing.view.document, 'keydown', ( evt, data ) => {\n\t\t\tif ( getCode( data ) === ITEM_TOGGLE_KEYSTROKE ) {\n\t\t\t\teditor.execute( 'checkTodoList' );\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// Remove `todoListChecked` attribute when a host element is no longer a to-do list item.\n\t\tconst listItemsToFix = new Set();\n\n\t\tthis.listenTo( model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( operation.type == 'rename' && operation.oldName == 'listItem' ) {\n\t\t\t\tconst item = operation.position.nodeAfter;\n\n\t\t\t\tif ( item.hasAttribute( 'todoListChecked' ) ) {\n\t\t\t\t\tlistItemsToFix.add( item );\n\t\t\t\t}\n\t\t\t} else if ( operation.type == 'changeAttribute' && operation.key == 'listType' && operation.oldValue === 'todo' ) {\n\t\t\t\tfor ( const item of operation.range.getItems() ) {\n\t\t\t\t\tif ( item.hasAttribute( 'todoListChecked' ) && item.getAttribute( 'listType' ) !== 'todo' ) {\n\t\t\t\t\t\tlistItemsToFix.add( item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\tmodel.document.registerPostFixer( writer => {\n\t\t\tlet hasChanged = false;\n\n\t\t\tfor ( const listItem of listItemsToFix ) {\n\t\t\t\twriter.removeAttribute( 'todoListChecked', listItem );\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tlistItemsToFix.clear();\n\n\t\t\treturn hasChanged;\n\t\t} );\n\t}\n\n\t/**\n\t * Handles the checkbox element change, moves the selection to the corresponding model item to make it possible\n\t * to toggle the `todoListChecked` attribute using the command, and restores the selection position.\n\t *\n\t * Some say it's a hack :) Moving the selection only for executing the command on a certain node and restoring it after,\n\t * is not a clear solution. We need to design an API for using commands beyond the selection range.\n\t * See https://github.com/ckeditor/ckeditor5/issues/1954.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} listItem\n\t */\n\t_handleCheckmarkChange( listItem ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst previousSelectionRanges = Array.from( model.document.selection.getRanges() );\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( listItem, 'end' );\n\t\t\teditor.execute( 'checkTodoList' );\n\t\t\twriter.setSelection( previousSelectionRanges );\n\t\t} );\n\t}\n}\n\n// Handles the left/right (LTR/RTL content) arrow key and moves the selection at the end of the previous block element\n// if the selection is just after the checkbox element. In other words, it jumps over the checkbox element when\n// moving the selection to the left/right (LTR/RTL).\n//\n// @private\n// @param {module:engine/model/model~Model} model\n// @param {module:utils/locale~Locale} locale\n// @returns {Function} Callback for 'keydown' events.\nfunction jumpOverCheckmarkOnSideArrowKeyPress( model, locale ) {\n\treturn ( eventInfo, domEventData ) => {\n\t\tconst direction = getLocalizedArrowKeyCodeDirection( domEventData.keyCode, locale.contentLanguageDirection );\n\n\t\tif ( direction != 'left' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = selection.getFirstPosition();\n\t\tconst parent = position.parent;\n\n\t\tif ( parent.name === 'listItem' && parent.getAttribute( 'listType' ) == 'todo' && position.isAtStart ) {\n\t\t\tconst newRange = schema.getNearestSelectionRange( model.createPositionBefore( parent ), 'backward' );\n\n\t\t\tif ( newRange ) {\n\t\t\t\tmodel.change( writer => writer.setSelection( newRange ) );\n\t\t\t}\n\n\t\t\tdomEventData.preventDefault();\n\t\t\tdomEventData.stopPropagation();\n\t\t\teventInfo.stop();\n\t\t}\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/todolistui\n */\n\nimport { createUIComponent } from '../list/utils';\nimport todoListIcon from '../../theme/icons/todolist.svg';\nimport { Plugin } from 'ckeditor5/src/core';\n\n/**\n * The to-do list UI feature. It introduces the `'todoList'` button that\n * allows to convert elements to and from to-do list items and to indent or outdent them.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TodoListUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TodoListUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst t = this.editor.t;\n\n\t\tcreateUIComponent( this.editor, 'todoList', t( 'To-do List' ), todoListIcon );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m2.315 14.705 2.224-2.24a.689.689 0 0 1 .963 0 .664.664 0 0 1 0 .949L2.865 16.07a.682.682 0 0 1-.112.089.647.647 0 0 1-.852-.051L.688 14.886a.635.635 0 0 1 0-.903.647.647 0 0 1 .91 0l.717.722zm5.185.045a.75.75 0 0 1 .75-.75h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75zM2.329 5.745l2.21-2.226a.689.689 0 0 1 .963 0 .664.664 0 0 1 0 .95L2.865 7.125a.685.685 0 0 1-.496.196.644.644 0 0 1-.468-.187L.688 5.912a.635.635 0 0 1 0-.903.647.647 0 0 1 .91 0l.73.736zM7.5 5.75A.75.75 0 0 1 8.25 5h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75z\\\"/></svg>\";","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./todolist.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/br\n */\n\nimport { DomConverter, ViewDocument } from 'ckeditor5/src/engine';\n\n/**\n * Transforms `<br>` elements that are siblings to some block element into a paragraphs.\n *\n * @param {module:engine/view/documentfragment~DocumentFragment} documentFragment The view structure to be transformed.\n * @param {module:engine/view/upcastwriter~UpcastWriter} writer\n */\nexport default function transformBlockBrsToParagraphs( documentFragment, writer ) {\n\tconst viewDocument = new ViewDocument( writer.document.stylesProcessor );\n\tconst domConverter = new DomConverter( viewDocument, { renderingMode: 'data' } );\n\n\tconst blockElements = domConverter.blockElements;\n\tconst inlineObjectElements = domConverter.inlineObjectElements;\n\n\tconst elementsToReplace = [];\n\n\tfor ( const value of writer.createRangeIn( documentFragment ) ) {\n\t\tconst element = value.item;\n\n\t\tif ( element.is( 'element', 'br' ) ) {\n\t\t\tconst nextSibling = findSibling( element, 'forward', writer, { blockElements, inlineObjectElements } );\n\t\t\tconst previousSibling = findSibling( element, 'backward', writer, { blockElements, inlineObjectElements } );\n\n\t\t\tconst nextSiblingIsBlock = isBlockViewElement( nextSibling, blockElements );\n\t\t\tconst previousSiblingIsBlock = isBlockViewElement( previousSibling, blockElements );\n\n\t\t\t// If the <br> is surrounded by blocks then convert it to a paragraph:\n\t\t\t// * <p>foo</p>[<br>]<p>bar</p> -> <p>foo</p>[<p></p>]<p>bar</p>\n\t\t\t// * <p>foo</p>[<br>] -> <p>foo</p>[<p></p>]\n\t\t\t// * [<br>]<p>foo</p> -> [<p></p>]<p>foo</p>\n\t\t\tif ( previousSiblingIsBlock || nextSiblingIsBlock ) {\n\t\t\t\telementsToReplace.push( element );\n\t\t\t}\n\t\t}\n\t}\n\n\tfor ( const element of elementsToReplace ) {\n\t\tif ( element.hasClass( 'Apple-interchange-newline' ) ) {\n\t\t\twriter.remove( element );\n\t\t} else {\n\t\t\twriter.replace( element, writer.createElement( 'p' ) );\n\t\t}\n\t}\n}\n\n// Returns sibling node, threats inline elements as transparent (but should stop on an inline objects).\nfunction findSibling( viewElement, direction, writer, { blockElements, inlineObjectElements } ) {\n\tlet position = writer.createPositionAt( viewElement, direction == 'forward' ? 'after' : 'before' );\n\n\t// Find first position that is just before a first:\n\t// * text node,\n\t// * block element,\n\t// * inline object element.\n\t// It's ignoring any inline (non-object) elements like span, strong, etc.\n\tposition = position.getLastMatchingPosition( ( { item } ) => (\n\t\titem.is( 'element' ) &&\n\t\t!blockElements.includes( item.name ) &&\n\t\t!inlineObjectElements.includes( item.name )\n\t), { direction } );\n\n\treturn direction == 'forward' ? position.nodeAfter : position.nodeBefore;\n}\n\n// Returns true for view elements that are listed as block view elements.\nfunction isBlockViewElement( node, blockElements ) {\n\treturn !!node && node.is( 'element' ) && blockElements.includes( node.name );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/list\n */\n\nimport { Matcher, UpcastWriter } from 'ckeditor5/src/engine';\n\n/**\n * Transforms Word specific list-like elements to the semantic HTML lists.\n *\n * Lists in Word are represented by block elements with special attributes like:\n *\n *\t\t<p class=MsoListParagraphCxSpFirst style='mso-list:l1 level1 lfo1'>...</p> // Paragraph based list.\n *\t\t<h1 style='mso-list:l0 level1 lfo1'>...</h1> // Heading 1 based list.\n *\n * @param {module:engine/view/documentfragment~DocumentFragment} documentFragment The view structure to be transformed.\n * @param {String} stylesString Styles from which list-like elements styling will be extracted.\n */\nexport function transformListItemLikeElementsIntoLists( documentFragment, stylesString ) {\n\tif ( !documentFragment.childCount ) {\n\t\treturn;\n\t}\n\n\tconst writer = new UpcastWriter( documentFragment.document );\n\tconst itemLikeElements = findAllItemLikeElements( documentFragment, writer );\n\n\tif ( !itemLikeElements.length ) {\n\t\treturn;\n\t}\n\n\tlet currentList = null;\n\tlet currentIndentation = 1;\n\n\titemLikeElements.forEach( ( itemLikeElement, i ) => {\n\t\tconst isDifferentList = isNewListNeeded( itemLikeElements[ i - 1 ], itemLikeElement );\n\t\tconst previousItemLikeElement = isDifferentList ? null : itemLikeElements[ i - 1 ];\n\t\tconst indentationDifference = getIndentationDifference( previousItemLikeElement, itemLikeElement );\n\n\t\tif ( isDifferentList ) {\n\t\t\tcurrentList = null;\n\t\t\tcurrentIndentation = 1;\n\t\t}\n\n\t\tif ( !currentList || indentationDifference !== 0 ) {\n\t\t\tconst listStyle = detectListStyle( itemLikeElement, stylesString );\n\n\t\t\tif ( !currentList ) {\n\t\t\t\tcurrentList = insertNewEmptyList( listStyle, itemLikeElement.element, writer );\n\t\t\t} else if ( itemLikeElement.indent > currentIndentation ) {\n\t\t\t\tconst lastListItem = currentList.getChild( currentList.childCount - 1 );\n\t\t\t\tconst lastListItemChild = lastListItem.getChild( lastListItem.childCount - 1 );\n\n\t\t\t\tcurrentList = insertNewEmptyList( listStyle, lastListItemChild, writer );\n\t\t\t\tcurrentIndentation += 1;\n\t\t\t} else if ( itemLikeElement.indent < currentIndentation ) {\n\t\t\t\tconst differentIndentation = currentIndentation - itemLikeElement.indent;\n\n\t\t\t\tcurrentList = findParentListAtLevel( currentList, differentIndentation );\n\t\t\t\tcurrentIndentation = parseInt( itemLikeElement.indent );\n\t\t\t}\n\n\t\t\tif ( itemLikeElement.indent <= currentIndentation ) {\n\t\t\t\tif ( !currentList.is( 'element', listStyle.type ) ) {\n\t\t\t\t\tcurrentList = writer.rename( listStyle.type, currentList );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst listItem = transformElementIntoListItem( itemLikeElement.element, writer );\n\n\t\twriter.appendChild( listItem, currentList );\n\t} );\n}\n\n/**\n * Removes paragraph wrapping content inside a list item.\n *\n * @param {module:engine/view/documentfragment~DocumentFragment} documentFragment\n * @param {module:engine/view/upcastwriter~UpcastWriter} writer\n */\nexport function unwrapParagraphInListItem( documentFragment, writer ) {\n\tfor ( const value of writer.createRangeIn( documentFragment ) ) {\n\t\tconst element = value.item;\n\n\t\tif ( element.is( 'element', 'li' ) ) {\n\t\t\t// Google Docs allows for single paragraph inside LI.\n\t\t\tconst firstChild = element.getChild( 0 );\n\n\t\t\tif ( firstChild && firstChild.is( 'element', 'p' ) ) {\n\t\t\t\twriter.unwrapElement( firstChild );\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Finds all list-like elements in a given document fragment.\n//\n// @param {module:engine/view/documentfragment~DocumentFragment} documentFragment Document fragment\n// in which to look for list-like nodes.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\n// @returns {Array.<Object>} Array of found list-like items. Each item is an object containing:\n//\n//\t\t* {module:engine/src/view/element~Element} element List-like element.\n//\t\t* {Number} id List item id parsed from `mso-list` style (see `getListItemData()` function).\n//\t\t* {Number} order List item creation order parsed from `mso-list` style (see `getListItemData()` function).\n//\t\t* {Number} indent List item indentation level parsed from `mso-list` style (see `getListItemData()` function).\nfunction findAllItemLikeElements( documentFragment, writer ) {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\t// Matcher for finding list-like elements.\n\tconst itemLikeElementsMatcher = new Matcher( {\n\t\tname: /^p|h\\d+$/,\n\t\tstyles: {\n\t\t\t'mso-list': /.*/\n\t\t}\n\t} );\n\n\tconst itemLikeElements = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.type === 'elementStart' && itemLikeElementsMatcher.match( value.item ) ) {\n\t\t\tconst itemData = getListItemData( value.item );\n\n\t\t\titemLikeElements.push( {\n\t\t\t\telement: value.item,\n\t\t\t\tid: itemData.id,\n\t\t\t\torder: itemData.order,\n\t\t\t\tindent: itemData.indent\n\t\t\t} );\n\t\t}\n\t}\n\n\treturn itemLikeElements;\n}\n\n// Extracts list item style from the provided CSS.\n//\n// List item style is extracted from the CSS stylesheet. Each list with its specific style attribute\n// value (`mso-list:l1 level1 lfo1`) has its dedicated properties in a CSS stylesheet defined with a selector like:\n//\n// \t\t@list l1:level1 { ... }\n//\n// It contains `mso-level-number-format` property which defines list numbering/bullet style. If this property\n// is not defined it means default `decimal` numbering.\n//\n// Here CSS string representation is used as `mso-level-number-format` property is an invalid CSS property\n// and will be removed during CSS parsing.\n//\n// @param {Object} listLikeItem List-like item for which list style will be searched for. Usually\n// a result of `findAllItemLikeElements()` function.\n// @param {String} stylesString CSS stylesheet.\n// @returns {Object} result\n// @returns {String} result.type List type, could be `ul` or `ol`.\n// @returns {Number} result.startIndex List start index, valid only for ordered lists.\n// @returns {String|null} result.style List style, for example: `decimal`, `lower-roman`, etc. It is extracted\n// directly from Word stylesheet and adjusted to represent proper values for the CSS `list-style-type` property.\n// If it cannot be adjusted, the `null` value is returned.\nfunction detectListStyle( listLikeItem, stylesString ) {\n\tconst listStyleRegexp = new RegExp( `@list l${ listLikeItem.id }:level${ listLikeItem.indent }\\\\s*({[^}]*)`, 'gi' );\n\tconst listStyleTypeRegex = /mso-level-number-format:([^;]{0,100});/gi;\n\tconst listStartIndexRegex = /mso-level-start-at:\\s{0,100}([0-9]{0,10})\\s{0,100};/gi;\n\n\tconst listStyleMatch = listStyleRegexp.exec( stylesString );\n\n\tlet listStyleType = 'decimal'; // Decimal is default one.\n\tlet type = 'ol'; // <ol> is default list.\n\tlet startIndex = null;\n\n\tif ( listStyleMatch && listStyleMatch[ 1 ] ) {\n\t\tconst listStyleTypeMatch = listStyleTypeRegex.exec( listStyleMatch[ 1 ] );\n\n\t\tif ( listStyleTypeMatch && listStyleTypeMatch[ 1 ] ) {\n\t\t\tlistStyleType = listStyleTypeMatch[ 1 ].trim();\n\t\t\ttype = listStyleType !== 'bullet' && listStyleType !== 'image' ? 'ol' : 'ul';\n\t\t}\n\n\t\t// Styles for the numbered lists are always defined in the Word CSS stylesheet.\n\t\t// Unordered lists MAY contain a value for the Word CSS definition `mso-level-text` but sometimes\n\t\t// this tag is missing. And because of that, we cannot depend on that. We need to predict the list style value\n\t\t// based on the list style marker element.\n\t\tif ( listStyleType === 'bullet' ) {\n\t\t\tconst bulletedStyle = findBulletedListStyle( listLikeItem.element );\n\n\t\t\tif ( bulletedStyle ) {\n\t\t\t\tlistStyleType = bulletedStyle;\n\t\t\t}\n\t\t} else {\n\t\t\tconst listStartIndexMatch = listStartIndexRegex.exec( listStyleMatch[ 1 ] );\n\n\t\t\tif ( listStartIndexMatch && listStartIndexMatch[ 1 ] ) {\n\t\t\t\tstartIndex = parseInt( listStartIndexMatch[ 1 ] );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn {\n\t\ttype,\n\t\tstartIndex,\n\t\tstyle: mapListStyleDefinition( listStyleType )\n\t};\n}\n\n// Tries to extract the `list-style-type` value based on the marker element for bulleted list.\n//\n// @param {module:engine/view/element~Element} element\n// @returns {String|null}\nfunction findBulletedListStyle( element ) {\n\tconst listMarkerElement = findListMarkerNode( element );\n\n\tif ( !listMarkerElement ) {\n\t\treturn null;\n\t}\n\n\tconst listMarker = listMarkerElement._data;\n\n\tif ( listMarker === 'o' ) {\n\t\treturn 'circle';\n\t} else if ( listMarker === '·' ) {\n\t\treturn 'disc';\n\t}\n\t// Word returns '§' instead of '■' for the square list style.\n\telse if ( listMarker === '§' ) {\n\t\treturn 'square';\n\t}\n\n\treturn null;\n}\n\n// Tries to find a text node that represents the marker element (list-style-type).\n//\n// @param {module:engine/view/element~Element} element\n// @returns {module:engine/view/text~Text|null}\nfunction findListMarkerNode( element ) {\n\t// If the first child is a text node, it is the data for the element.\n\t// The list-style marker is not present here.\n\tif ( element.getChild( 0 ).is( '$text' ) ) {\n\t\treturn null;\n\t}\n\n\tfor ( const childNode of element.getChildren() ) {\n\t\t// The list-style marker will be inside the `<span>` element. Let's ignore all non-span elements.\n\t\t// It may happen that the `<a>` element is added as the first child. Most probably, it's an anchor element.\n\t\tif ( !childNode.is( 'element', 'span' ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst textNodeOrElement = childNode.getChild( 0 );\n\n\t\t// If already found the marker element, use it.\n\t\tif ( textNodeOrElement.is( '$text' ) ) {\n\t\t\treturn textNodeOrElement;\n\t\t}\n\n\t\treturn textNodeOrElement.getChild( 0 );\n\t}\n}\n\n// Parses the `list-style-type` value extracted directly from the Word CSS stylesheet and returns proper CSS definition.\n//\n// @param {String|null} value\n// @returns {String|null}\nfunction mapListStyleDefinition( value ) {\n\tif ( value.startsWith( 'arabic-leading-zero' ) ) {\n\t\treturn 'decimal-leading-zero';\n\t}\n\n\tswitch ( value ) {\n\t\tcase 'alpha-upper':\n\t\t\treturn 'upper-alpha';\n\t\tcase 'alpha-lower':\n\t\t\treturn 'lower-alpha';\n\t\tcase 'roman-upper':\n\t\t\treturn 'upper-roman';\n\t\tcase 'roman-lower':\n\t\t\treturn 'lower-roman';\n\t\tcase 'circle':\n\t\tcase 'disc':\n\t\tcase 'square':\n\t\t\treturn value;\n\t\tdefault:\n\t\t\treturn null;\n\t}\n}\n\n// Creates an empty list of a given type and inserts it after a specified element.\n//\n// @param {Object} listStyle List style object which determines the type of newly created list.\n// Usually a result of `detectListStyle()` function.\n// @param {module:engine/view/element~Element} element Element after which list is inserted.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\n// @returns {module:engine/view/element~Element} Newly created list element.\n\nfunction insertNewEmptyList( listStyle, element, writer ) {\n\tconst parent = element.parent;\n\tconst list = writer.createElement( listStyle.type );\n\tconst position = parent.getChildIndex( element ) + 1;\n\n\twriter.insertChild( position, list, parent );\n\n\t// We do not support modifying the marker for a particular list item.\n\t// Set the value for the `list-style-type` property directly to the list container.\n\tif ( listStyle.style ) {\n\t\twriter.setStyle( 'list-style-type', listStyle.style, list );\n\t}\n\n\tif ( listStyle.startIndex && listStyle.startIndex > 1 ) {\n\t\twriter.setAttribute( 'start', listStyle.startIndex, list );\n\t}\n\n\treturn list;\n}\n\n// Transforms a given element into a semantic list item. As the function operates on a provided\n// {module:engine/src/view/element~Element element} it will modify the view structure to which this element belongs.\n//\n// @param {module:engine/view/element~Element} element Element which will be transformed into a list item.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\n// @returns {module:engine/view/element~Element} New element to which the given one was transformed. It is\n// inserted in place of the old element (the reference to the old element is lost due to renaming).\nfunction transformElementIntoListItem( element, writer ) {\n\tremoveBulletElement( element, writer );\n\n\treturn writer.rename( 'li', element );\n}\n\n// Extracts list item information from Word specific list-like element style:\n//\n//\t\t`style=\"mso-list:l1 level1 lfo1\"`\n//\n// where:\n//\n//\t\t* `l1` is a list id (however it does not mean this is a continuous list - see #43),\n//\t\t* `level1` is a list item indentation level,\n//\t\t* `lfo1` is a list insertion order in a document.\n//\n// @param {module:engine/view/element~Element} element Element from which style data is extracted.\n// @returns {Object} result\n// @returns {Number} result.id Parent list id.\n// @returns {Number} result.order List item creation order.\n// @returns {Number} result.indent List item indentation level.\nfunction getListItemData( element ) {\n\tconst data = {};\n\tconst listStyle = element.getStyle( 'mso-list' );\n\n\tif ( listStyle ) {\n\t\tconst idMatch = listStyle.match( /(^|\\s{1,100})l(\\d+)/i );\n\t\tconst orderMatch = listStyle.match( /\\s{0,100}lfo(\\d+)/i );\n\t\tconst indentMatch = listStyle.match( /\\s{0,100}level(\\d+)/i );\n\n\t\tif ( idMatch && orderMatch && indentMatch ) {\n\t\t\tdata.id = idMatch[ 2 ];\n\t\t\tdata.order = orderMatch[ 1 ];\n\t\t\tdata.indent = indentMatch[ 1 ];\n\t\t}\n\t}\n\n\treturn data;\n}\n\n// Removes span with a numbering/bullet from a given element.\n//\n// @param {module:engine/view/element~Element} element\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\nfunction removeBulletElement( element, writer ) {\n\t// Matcher for finding `span` elements holding lists numbering/bullets.\n\tconst bulletMatcher = new Matcher( {\n\t\tname: 'span',\n\t\tstyles: {\n\t\t\t'mso-list': 'Ignore'\n\t\t}\n\t} );\n\n\tconst range = writer.createRangeIn( element );\n\n\tfor ( const value of range ) {\n\t\tif ( value.type === 'elementStart' && bulletMatcher.match( value.item ) ) {\n\t\t\twriter.remove( value.item );\n\t\t}\n\t}\n}\n\n// Whether the previous and current items belong to the same list. It is determined based on `item.id`\n// (extracted from `mso-list` style, see #getListItemData) and a previous sibling of the current item.\n//\n// However, it's quite easy to change the `id` attribute for nested lists in Word. It will break the list feature while pasting.\n// Let's check also the `indent` attribute. If the difference between those two elements is equal to 1, we can assume that\n// the `currentItem` is a beginning of the nested list because lists in CKEditor 5 always start with the `indent=0` attribute.\n// See: https://github.com/ckeditor/ckeditor5/issues/7805.\n//\n// @param {Object} previousItem\n// @param {Object} currentItem\n// @returns {Boolean}\nfunction isNewListNeeded( previousItem, currentItem ) {\n\tif ( !previousItem ) {\n\t\treturn true;\n\t}\n\n\tif ( previousItem.id !== currentItem.id ) {\n\t\t// See: https://github.com/ckeditor/ckeditor5/issues/7805.\n\t\t//\n\t\t// * List item 1.\n\t\t//     - Nested list item 1.\n\t\tif ( currentItem.indent - previousItem.indent === 1 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\tconst previousSibling = currentItem.element.previousSibling;\n\n\tif ( !previousSibling ) {\n\t\treturn true;\n\t}\n\n\t// Even with the same id the list does not have to be continuous (#43).\n\treturn !isList( previousSibling );\n}\n\nfunction isList( element ) {\n\treturn element.is( 'element', 'ol' ) || element.is( 'element', 'ul' );\n}\n\n// Calculates the indentation difference between two given list items (based on the indent attribute\n// extracted from the `mso-list` style, see #getListItemData).\n//\n// @param {Object} previousItem\n// @param {Object} currentItem\n// @returns {Number}\nfunction getIndentationDifference( previousItem, currentItem ) {\n\treturn previousItem ? currentItem.indent - previousItem.indent : currentItem.indent - 1;\n}\n\n// Finds the parent list element (ul/ol) of a given list element with indentation level lower by a given value.\n//\n// @param {module:engine/view/element~Element} listElement List element from which to start looking for a parent list.\n// @param {Number} indentationDifference Indentation difference between lists.\n// @returns {module:engine/view/element~Element} Found list element with indentation level lower by a given value.\nfunction findParentListAtLevel( listElement, indentationDifference ) {\n\tconst ancestors = listElement.getAncestors( { parentFirst: true } );\n\n\tlet parentList = null;\n\tlet levelChange = 0;\n\n\tfor ( const ancestor of ancestors ) {\n\t\tif ( ancestor.name === 'ul' || ancestor.name === 'ol' ) {\n\t\t\tlevelChange++;\n\t\t}\n\n\t\tif ( levelChange === indentationDifference ) {\n\t\t\tparentList = ancestor;\n\t\t\tbreak;\n\t\t}\n\t}\n\n\treturn parentList;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/normalizers/googledocsnormalizer\n */\n\nimport { UpcastWriter } from 'ckeditor5/src/engine';\n\nimport removeBoldWrapper from '../filters/removeboldwrapper';\nimport transformBlockBrsToParagraphs from '../filters/br';\nimport { unwrapParagraphInListItem } from '../filters/list';\n\nconst googleDocsMatch = /id=(\"|')docs-internal-guid-[-0-9a-f]+(\"|')/i;\n\n/**\n * Normalizer for the content pasted from Google Docs.\n *\n * @implements module:paste-from-office/normalizer~Normalizer\n */\nexport default class GoogleDocsNormalizer {\n\t/**\n\t * Creates a new `GoogleDocsNormalizer` instance.\n\t *\n\t * @param {module:engine/view/document~Document} document View document.\n\t */\n\tconstructor( document ) {\n\t\t/**\n\t\t * @readonly\n\t\t * @type {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = document;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tisActive( htmlString ) {\n\t\treturn googleDocsMatch.test( htmlString );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute( data ) {\n\t\tconst writer = new UpcastWriter( this.document );\n\t\tconst { body: documentFragment } = data._parsedData;\n\n\t\tremoveBoldWrapper( documentFragment, writer );\n\t\tunwrapParagraphInListItem( documentFragment, writer );\n\t\ttransformBlockBrsToParagraphs( documentFragment, writer );\n\n\t\tdata.content = documentFragment;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/removeboldwrapper\n */\n\n/**\n * Removes `<b>` tag wrapper added by Google Docs to a copied content.\n *\n * @param {module:engine/view/documentfragment~DocumentFragment} documentFragment element `data.content` obtained from clipboard\n * @param {module:engine/view/upcastwriter~UpcastWriter} writer\n */\nexport default function removeBoldWrapper( documentFragment, writer ) {\n\tfor ( const child of documentFragment.getChildren() ) {\n\t\tif ( child.is( 'element', 'b' ) && child.getStyle( 'font-weight' ) === 'normal' ) {\n\t\t\tconst childIndex = documentFragment.getChildIndex( child );\n\n\t\t\twriter.remove( child );\n\t\t\twriter.insertChild( childIndex, child.getChildren(), documentFragment );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/image\n */\n\n/* globals btoa */\n\nimport { Matcher, UpcastWriter } from 'ckeditor5/src/engine';\n\n/**\n * Replaces source attribute of all `<img>` elements representing regular\n * images (not the Word shapes) with inlined base64 image representation extracted from RTF or Blob data.\n *\n * @param {module:engine/view/documentfragment~DocumentFragment} documentFragment Document fragment on which transform images.\n * @param {String} rtfData The RTF data from which images representation will be used.\n */\nexport function replaceImagesSourceWithBase64( documentFragment, rtfData ) {\n\tif ( !documentFragment.childCount ) {\n\t\treturn;\n\t}\n\n\tconst upcastWriter = new UpcastWriter();\n\tconst shapesIds = findAllShapesIds( documentFragment, upcastWriter );\n\n\tremoveAllImgElementsRepresentingShapes( shapesIds, documentFragment, upcastWriter );\n\tremoveAllShapeElements( documentFragment, upcastWriter );\n\n\tconst images = findAllImageElementsWithLocalSource( documentFragment, upcastWriter );\n\n\tif ( images.length ) {\n\t\treplaceImagesFileSourceWithInlineRepresentation( images, extractImageDataFromRtf( rtfData ), upcastWriter );\n\t}\n}\n\n/**\n * Converts given HEX string to base64 representation.\n *\n * @protected\n * @param {String} hexString The HEX string to be converted.\n * @returns {String} Base64 representation of a given HEX string.\n */\nexport function _convertHexToBase64( hexString ) {\n\treturn btoa( hexString.match( /\\w{2}/g ).map( char => {\n\t\treturn String.fromCharCode( parseInt( char, 16 ) );\n\t} ).join( '' ) );\n}\n\n// Finds all shapes (`<v:*>...</v:*>`) ids. Shapes can represent images (canvas)\n// or Word shapes (which does not have RTF or Blob representation).\n//\n// @param {module:engine/view/documentfragment~DocumentFragment} documentFragment Document fragment\n// from which to extract shape ids.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\n// @returns {Array.<String>} Array of shape ids.\nfunction findAllShapesIds( documentFragment, writer ) {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst shapeElementsMatcher = new Matcher( {\n\t\tname: /v:(.+)/\n\t} );\n\n\tconst shapesIds = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.type != 'elementStart' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst el = value.item;\n\t\tconst prevSiblingName = el.previousSibling && el.previousSibling.name || null;\n\n\t\t// If shape element have 'o:gfxdata' attribute and is not directly before `<v:shapetype>` element it means it represent Word shape.\n\t\tif ( shapeElementsMatcher.match( el ) && el.getAttribute( 'o:gfxdata' ) && prevSiblingName !== 'v:shapetype' ) {\n\t\t\tshapesIds.push( value.item.getAttribute( 'id' ) );\n\t\t}\n\t}\n\n\treturn shapesIds;\n}\n\n// Removes all `<img>` elements which represents Word shapes and not regular images.\n//\n// @param {Array.<String>} shapesIds Shape ids which will be checked against `<img>` elements.\n// @param {module:engine/view/documentfragment~DocumentFragment} documentFragment Document fragment from which to remove `<img>` elements.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\nfunction removeAllImgElementsRepresentingShapes( shapesIds, documentFragment, writer ) {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst imageElementsMatcher = new Matcher( {\n\t\tname: 'img'\n\t} );\n\n\tconst imgs = [];\n\n\tfor ( const value of range ) {\n\t\tif ( imageElementsMatcher.match( value.item ) ) {\n\t\t\tconst el = value.item;\n\t\t\tconst shapes = el.getAttribute( 'v:shapes' ) ? el.getAttribute( 'v:shapes' ).split( ' ' ) : [];\n\n\t\t\tif ( shapes.length && shapes.every( shape => shapesIds.indexOf( shape ) > -1 ) ) {\n\t\t\t\timgs.push( el );\n\t\t\t// Shapes may also have empty source while content is paste in some browsers (Safari).\n\t\t\t} else if ( !el.getAttribute( 'src' ) ) {\n\t\t\t\timgs.push( el );\n\t\t\t}\n\t\t}\n\t}\n\n\tfor ( const img of imgs ) {\n\t\twriter.remove( img );\n\t}\n}\n\n// Removes all shape elements (`<v:*>...</v:*>`) so they do not pollute the output structure.\n//\n// @param {module:engine/view/documentfragment~DocumentFragment} documentFragment Document fragment from which to remove shape elements.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\nfunction removeAllShapeElements( documentFragment, writer ) {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst shapeElementsMatcher = new Matcher( {\n\t\tname: /v:(.+)/\n\t} );\n\n\tconst shapes = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.type == 'elementStart' && shapeElementsMatcher.match( value.item ) ) {\n\t\t\tshapes.push( value.item );\n\t\t}\n\t}\n\n\tfor ( const shape of shapes ) {\n\t\twriter.remove( shape );\n\t}\n}\n\n// Finds all `<img>` elements in a given document fragment which have source pointing to local `file://` resource.\n//\n// @param {module:engine/view/documentfragment~DocumentFragment} documentFragment Document fragment in which to look for `<img>` elements.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\n// @returns {Object} result All found images grouped by source type.\n// @returns {Array.<module:engine/view/element~Element>} result.file Array of found `<img>` elements with `file://` source.\n// @returns {Array.<module:engine/view/element~Element>} result.blob Array of found `<img>` elements with `blob:` source.\nfunction findAllImageElementsWithLocalSource( documentFragment, writer ) {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst imageElementsMatcher = new Matcher( {\n\t\tname: 'img'\n\t} );\n\n\tconst imgs = [];\n\n\tfor ( const value of range ) {\n\t\tif ( imageElementsMatcher.match( value.item ) ) {\n\t\t\tif ( value.item.getAttribute( 'src' ).startsWith( 'file://' ) ) {\n\t\t\t\timgs.push( value.item );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn imgs;\n}\n\n// Extracts all images HEX representations from a given RTF data.\n//\n// @param {String} rtfData The RTF data from which to extract images HEX representation.\n// @returns {Array.<Object>} Array of found HEX representations. Each array item is an object containing:\n//\n// \t\t* {String} hex Image representation in HEX format.\n// \t\t* {string} type Type of image, `image/png` or `image/jpeg`.\nfunction extractImageDataFromRtf( rtfData ) {\n\tif ( !rtfData ) {\n\t\treturn [];\n\t}\n\n\tconst regexPictureHeader = /{\\\\pict[\\s\\S]+?\\\\bliptag-?\\d+(\\\\blipupi-?\\d+)?({\\\\\\*\\\\blipuid\\s?[\\da-fA-F]+)?[\\s}]*?/;\n\tconst regexPicture = new RegExp( '(?:(' + regexPictureHeader.source + '))([\\\\da-fA-F\\\\s]+)\\\\}', 'g' );\n\tconst images = rtfData.match( regexPicture );\n\tconst result = [];\n\n\tif ( images ) {\n\t\tfor ( const image of images ) {\n\t\t\tlet imageType = false;\n\n\t\t\tif ( image.includes( '\\\\pngblip' ) ) {\n\t\t\t\timageType = 'image/png';\n\t\t\t} else if ( image.includes( '\\\\jpegblip' ) ) {\n\t\t\t\timageType = 'image/jpeg';\n\t\t\t}\n\n\t\t\tif ( imageType ) {\n\t\t\t\tresult.push( {\n\t\t\t\t\thex: image.replace( regexPictureHeader, '' ).replace( /[^\\da-fA-F]/g, '' ),\n\t\t\t\t\ttype: imageType\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn result;\n}\n\n// Replaces `src` attribute value of all given images with the corresponding base64 image representation.\n//\n// @param {Array.<module:engine/view/element~Element>} imageElements Array of image elements which will have its source replaced.\n// @param {Array.<Object>} imagesHexSources Array of images hex sources (usually the result of `extractImageDataFromRtf()` function).\n// The array should be the same length as `imageElements` parameter.\n// @param {module:engine/view/upcastwriter~UpcastWriter} writer\nfunction replaceImagesFileSourceWithInlineRepresentation( imageElements, imagesHexSources, writer ) {\n\t// Assume there is an equal amount of image elements and images HEX sources so they can be matched accordingly based on existing order.\n\tif ( imageElements.length === imagesHexSources.length ) {\n\t\tfor ( let i = 0; i < imageElements.length; i++ ) {\n\t\t\tconst newSrc = `data:${ imagesHexSources[ i ].type };base64,${ _convertHexToBase64( imagesHexSources[ i ].hex ) }`;\n\t\t\twriter.setAttribute( 'src', newSrc, imageElements[ i ] );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/normalizers/mswordnormalizer\n */\n\nimport { transformListItemLikeElementsIntoLists } from '../filters/list';\nimport { replaceImagesSourceWithBase64 } from '../filters/image';\n\nconst msWordMatch1 = /<meta\\s*name=\"?generator\"?\\s*content=\"?microsoft\\s*word\\s*\\d+\"?\\/?>/i;\nconst msWordMatch2 = /xmlns:o=\"urn:schemas-microsoft-com/i;\n\n/**\n * Normalizer for the content pasted from Microsoft Word.\n *\n * @implements module:paste-from-office/normalizer~Normalizer\n */\nexport default class MSWordNormalizer {\n\t/**\n\t * Creates a new `MSWordNormalizer` instance.\n\t *\n\t * @param {module:engine/view/document~Document} document View document.\n\t */\n\tconstructor( document ) {\n\t\t/**\n\t\t * @readonly\n\t\t * @type {module:engine/view/document~Document}\n\t\t */\n\t\tthis.document = document;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tisActive( htmlString ) {\n\t\treturn msWordMatch1.test( htmlString ) || msWordMatch2.test( htmlString );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute( data ) {\n\t\tconst { body: documentFragment, stylesString } = data._parsedData;\n\n\t\ttransformListItemLikeElementsIntoLists( documentFragment, stylesString );\n\t\treplaceImagesSourceWithBase64( documentFragment, data.dataTransfer.getData( 'text/rtf' ) );\n\n\t\tdata.content = documentFragment;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/space\n */\n\n/**\n * Replaces last space preceding elements closing tag with `&nbsp;`. Such operation prevents spaces from being removed\n * during further DOM/View processing (see especially {@link module:engine/view/domconverter~DomConverter#_processDataFromDomText}).\n * This method also takes into account Word specific `<o:p></o:p>` empty tags.\n * Additionally multiline sequences of spaces and new lines between tags are removed (see #39 and #40).\n *\n * @param {String} htmlString HTML string in which spacing should be normalized.\n * @returns {String} Input HTML with spaces normalized.\n */\nexport function normalizeSpacing( htmlString ) {\n\t// Run normalizeSafariSpaceSpans() two times to cover nested spans.\n\treturn normalizeSafariSpaceSpans( normalizeSafariSpaceSpans( htmlString ) )\n\t\t// Remove all \\r\\n from \"spacerun spans\" so the last replace line doesn't strip all whitespaces.\n\t\t.replace( /(<span\\s+style=['\"]mso-spacerun:yes['\"]>[^\\S\\r\\n]*?)[\\r\\n]+([^\\S\\r\\n]*<\\/span>)/g, '$1$2' )\n\t\t.replace( /<span\\s+style=['\"]mso-spacerun:yes['\"]><\\/span>/g, '' )\n\t\t.replace( / <\\//g, '\\u00A0</' )\n\t\t.replace( / <o:p><\\/o:p>/g, '\\u00A0<o:p></o:p>' )\n\t\t// Remove <o:p> block filler from empty paragraph. Safari uses \\u00A0 instead of &nbsp;.\n\t\t.replace( /<o:p>(&nbsp;|\\u00A0)<\\/o:p>/g, '' )\n\t\t// Remove all whitespaces when they contain any \\r or \\n.\n\t\t.replace( />([^\\S\\r\\n]*[\\r\\n]\\s*)</g, '><' );\n}\n\n/**\n * Normalizes spacing in special Word `spacerun spans` (`<span style='mso-spacerun:yes'>\\s+</span>`) by replacing\n * all spaces with `&nbsp; ` pairs. This prevents spaces from being removed during further DOM/View processing\n * (see especially {@link module:engine/view/domconverter~DomConverter#_processDataFromDomText}).\n *\n * @param {Document} htmlDocument Native `Document` object in which spacing should be normalized.\n */\nexport function normalizeSpacerunSpans( htmlDocument ) {\n\thtmlDocument.querySelectorAll( 'span[style*=spacerun]' ).forEach( el => {\n\t\tconst innerTextLength = el.innerText.length || 0;\n\n\t\tel.innerText = Array( innerTextLength + 1 ).join( '\\u00A0 ' ).substr( 0, innerTextLength );\n\t} );\n}\n\n// Normalizes specific spacing generated by Safari when content pasted from Word (`<span class=\"Apple-converted-space\"> </span>`)\n// by replacing all spaces sequences longer than 1 space with `&nbsp; ` pairs. This prevents spaces from being removed during\n// further DOM/View processing (see especially {@link module:engine/view/domconverter~DomConverter#_processDataFromDomText}).\n//\n// This function is similar to {@link module:clipboard/utils/normalizeclipboarddata normalizeClipboardData util} but uses\n// regular spaces / &nbsp; sequence for replacement.\n//\n// @param {String} htmlString HTML string in which spacing should be normalized\n// @returns {String} Input HTML with spaces normalized.\nfunction normalizeSafariSpaceSpans( htmlString ) {\n\treturn htmlString.replace( /<span(?: class=\"Apple-converted-space\"|)>(\\s+)<\\/span>/g, ( fullMatch, spaces ) => {\n\t\treturn spaces.length === 1 ? ' ' : Array( spaces.length + 1 ).join( '\\u00A0 ' ).substr( 0, spaces.length );\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/parse\n */\n\n/* globals DOMParser */\n\nimport { DomConverter, ViewDocument } from 'ckeditor5/src/engine';\n\nimport { normalizeSpacing, normalizeSpacerunSpans } from './space';\n\n/**\n * Parses provided HTML extracting contents of `<body>` and `<style>` tags.\n *\n * @param {String} htmlString HTML string to be parsed.\n * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor\n * @returns {Object} result\n * @returns {module:engine/view/documentfragment~DocumentFragment} result.body Parsed body\n * content as a traversable structure.\n * @returns {String} result.bodyString Entire body content as a string.\n * @returns {Array.<CSSStyleSheet>} result.styles Array of native `CSSStyleSheet` objects, each representing\n * separate `style` tag from the source HTML.\n * @returns {String} result.stylesString All `style` tags contents combined in the order of occurrence into one string.\n */\nexport function parseHtml( htmlString, stylesProcessor ) {\n\tconst domParser = new DOMParser();\n\n\t// Remove Word specific \"if comments\" so content inside is not omitted by the parser.\n\thtmlString = htmlString.replace( /<!--\\[if gte vml 1]>/g, '' );\n\n\tconst normalizedHtml = normalizeSpacing( cleanContentAfterBody( htmlString ) );\n\n\t// Parse htmlString as native Document object.\n\tconst htmlDocument = domParser.parseFromString( normalizedHtml, 'text/html' );\n\n\tnormalizeSpacerunSpans( htmlDocument );\n\n\t// Get `innerHTML` first as transforming to View modifies the source document.\n\tconst bodyString = htmlDocument.body.innerHTML;\n\n\t// Transform document.body to View.\n\tconst bodyView = documentToView( htmlDocument, stylesProcessor );\n\n\t// Extract stylesheets.\n\tconst stylesObject = extractStyles( htmlDocument );\n\n\treturn {\n\t\tbody: bodyView,\n\t\tbodyString,\n\t\tstyles: stylesObject.styles,\n\t\tstylesString: stylesObject.stylesString\n\t};\n}\n\n// Transforms native `Document` object into {@link module:engine/view/documentfragment~DocumentFragment}. Comments are skipped.\n//\n// @param {Document} htmlDocument Native `Document` object to be transformed.\n// @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor\n// @returns {module:engine/view/documentfragment~DocumentFragment}\nfunction documentToView( htmlDocument, stylesProcessor ) {\n\tconst viewDocument = new ViewDocument( stylesProcessor );\n\tconst domConverter = new DomConverter( viewDocument, { renderingMode: 'data' } );\n\tconst fragment = htmlDocument.createDocumentFragment();\n\tconst nodes = htmlDocument.body.childNodes;\n\n\twhile ( nodes.length > 0 ) {\n\t\tfragment.appendChild( nodes[ 0 ] );\n\t}\n\n\treturn domConverter.domToView( fragment, { skipComments: true } );\n}\n\n// Extracts both `CSSStyleSheet` and string representation from all `style` elements available in a provided `htmlDocument`.\n//\n// @param {Document} htmlDocument Native `Document` object from which styles will be extracted.\n// @returns {Object} result\n// @returns {Array.<CSSStyleSheet>} result.styles Array of native `CSSStyleSheet` object, each representing\n// separate `style` tag from the source object.\n// @returns {String} result.stylesString All `style` tags contents combined in the order of occurrence as one string.\nfunction extractStyles( htmlDocument ) {\n\tconst styles = [];\n\tconst stylesString = [];\n\tconst styleTags = Array.from( htmlDocument.getElementsByTagName( 'style' ) );\n\n\tfor ( const style of styleTags ) {\n\t\tif ( style.sheet && style.sheet.cssRules && style.sheet.cssRules.length ) {\n\t\t\tstyles.push( style.sheet );\n\t\t\tstylesString.push( style.innerHTML );\n\t\t}\n\t}\n\n\treturn {\n\t\tstyles,\n\t\tstylesString: stylesString.join( ' ' )\n\t};\n}\n\n// Removes leftover content from between closing </body> and closing </html> tag:\n//\n// \t\t<html><body><p>Foo Bar</p></body><span>Fo</span></html> -> <html><body><p>Foo Bar</p></body></html>\n//\n// This function is used as specific browsers (Edge) add some random content after `body` tag when pasting from Word.\n// @param {String} htmlString The HTML string to be cleaned.\n// @returns {String} The HTML string with leftover content removed.\nfunction cleanContentAfterBody( htmlString ) {\n\tconst bodyCloseTag = '</body>';\n\tconst htmlCloseTag = '</html>';\n\n\tconst bodyCloseIndex = htmlString.indexOf( bodyCloseTag );\n\n\tif ( bodyCloseIndex < 0 ) {\n\t\treturn htmlString;\n\t}\n\n\tconst htmlCloseIndex = htmlString.indexOf( htmlCloseTag, bodyCloseIndex + bodyCloseTag.length );\n\n\treturn htmlString.substring( 0, bodyCloseIndex + bodyCloseTag.length ) +\n\t\t( htmlCloseIndex >= 0 ? htmlString.substring( htmlCloseIndex ) : '' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/tableproperites\n */\n\n/**\n * Conversion helper for upcasting attributes using normalized styles.\n *\n * @param {module:engine/conversion/conversion~Conversion} conversion\n * @param {Object} options\n * @param {String} options.modelAttribute The attribute to set.\n * @param {String} options.styleName The style name to convert.\n * @param {String} options.viewElement The view element name that should be converted.\n * @param {String} options.defaultValue The default value for the specified `modelAttribute`.\n * @param {Boolean} [options.reduceBoxSides=false]\n * @param {Function} [options.shouldUpcast] The function which returns `true` if style should be upcasted from this element.\n */\nexport function upcastStyleToAttribute( conversion, options ) {\n\tconst { viewElement, defaultValue, modelAttribute, styleName, reduceBoxSides = false, shouldUpcast = () => true } = options;\n\n\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\tview: {\n\t\t\tname: viewElement,\n\t\t\tstyles: {\n\t\t\t\t[ styleName ]: /[\\s\\S]+/\n\t\t\t}\n\t\t},\n\t\tmodel: {\n\t\t\tkey: modelAttribute,\n\t\t\tvalue: viewElement => {\n\t\t\t\tif ( !shouldUpcast( viewElement ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst normalized = viewElement.getNormalizedStyle( styleName );\n\t\t\t\tconst value = reduceBoxSides ? reduceBoxSidesValue( normalized ) : normalized;\n\n\t\t\t\tif ( defaultValue !== value ) {\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t} );\n}\n\n/**\n * Conversion helper for upcasting border styles for view elements.\n *\n * @param {module:engine/conversion/conversion~Conversion} conversion\n * @param {String} viewElementName\n * @param {Object} modelAttributes\n * @param {Object} defaultBorder The default border values.\n * @param {String} defaultBorder.color The default `borderColor` value.\n * @param {String} defaultBorder.style The default `borderStyle` value.\n * @param {String} defaultBorder.width The default `borderWidth` value.\n */\nexport function upcastBorderStyles( conversion, viewElementName, modelAttributes, defaultBorder ) {\n\tconversion.for( 'upcast' ).add( dispatcher => dispatcher.on( 'element:' + viewElementName, ( evt, data, conversionApi ) => {\n\t\t// If the element was not converted by element-to-element converter,\n\t\t// we should not try to convert the style. See #8393.\n\t\tif ( !data.modelRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check the most detailed properties. These will be always set directly or\n\t\t// when using the \"group\" properties like: `border-(top|right|bottom|left)` or `border`.\n\t\tconst stylesToConsume = [\n\t\t\t'border-top-width',\n\t\t\t'border-top-color',\n\t\t\t'border-top-style',\n\t\t\t'border-bottom-width',\n\t\t\t'border-bottom-color',\n\t\t\t'border-bottom-style',\n\t\t\t'border-right-width',\n\t\t\t'border-right-color',\n\t\t\t'border-right-style',\n\t\t\t'border-left-width',\n\t\t\t'border-left-color',\n\t\t\t'border-left-style'\n\t\t].filter( styleName => data.viewItem.hasStyle( styleName ) );\n\n\t\tif ( !stylesToConsume.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst matcherPattern = {\n\t\t\tstyles: stylesToConsume\n\t\t};\n\n\t\t// Try to consume appropriate values from consumable values list.\n\t\tif ( !conversionApi.consumable.test( data.viewItem, matcherPattern ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelElement = [ ...data.modelRange.getItems( { shallow: true } ) ].pop();\n\n\t\tconversionApi.consumable.consume( data.viewItem, matcherPattern );\n\n\t\tconst normalizedBorder = {\n\t\t\tstyle: data.viewItem.getNormalizedStyle( 'border-style' ),\n\t\t\tcolor: data.viewItem.getNormalizedStyle( 'border-color' ),\n\t\t\twidth: data.viewItem.getNormalizedStyle( 'border-width' )\n\t\t};\n\n\t\tconst reducedBorder = {\n\t\t\tstyle: reduceBoxSidesValue( normalizedBorder.style ),\n\t\t\tcolor: reduceBoxSidesValue( normalizedBorder.color ),\n\t\t\twidth: reduceBoxSidesValue( normalizedBorder.width )\n\t\t};\n\n\t\tif ( reducedBorder.style !== defaultBorder.style ) {\n\t\t\tconversionApi.writer.setAttribute( modelAttributes.style, reducedBorder.style, modelElement );\n\t\t}\n\n\t\tif ( reducedBorder.color !== defaultBorder.color ) {\n\t\t\tconversionApi.writer.setAttribute( modelAttributes.color, reducedBorder.color, modelElement );\n\t\t}\n\n\t\tif ( reducedBorder.width !== defaultBorder.width ) {\n\t\t\tconversionApi.writer.setAttribute( modelAttributes.width, reducedBorder.width, modelElement );\n\t\t}\n\t} ) );\n}\n\n/**\n * Conversion helper for downcasting an attribute to a style.\n *\n * @param {module:engine/conversion/conversion~Conversion} conversion\n * @param {Object} options\n * @param {String} options.modelElement\n * @param {String} options.modelAttribute\n * @param {String} options.styleName\n */\nexport function downcastAttributeToStyle( conversion, { modelElement, modelAttribute, styleName } ) {\n\tconversion.for( 'downcast' ).attributeToAttribute( {\n\t\tmodel: {\n\t\t\tname: modelElement,\n\t\t\tkey: modelAttribute\n\t\t},\n\t\tview: modelAttributeValue => ( {\n\t\t\tkey: 'style',\n\t\t\tvalue: {\n\t\t\t\t[ styleName ]: modelAttributeValue\n\t\t\t}\n\t\t} )\n\t} );\n}\n\n/**\n * Conversion helper for downcasting attributes from the model table to a view table (not to `<figure>`).\n *\n * @param {module:engine/conversion/conversion~Conversion} conversion\n * @param {Object} options\n * @param {String} options.modelAttribute\n * @param {String} options.styleName\n */\nexport function downcastTableAttribute( conversion, { modelAttribute, styleName } ) {\n\tconversion.for( 'downcast' ).add( dispatcher => dispatcher.on( `attribute:${ modelAttribute }:table`, ( evt, data, conversionApi ) => {\n\t\tconst { item, attributeNewValue } = data;\n\t\tconst { mapper, writer } = conversionApi;\n\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst table = [ ...mapper.toViewElement( item ).getChildren() ].find( child => child.is( 'element', 'table' ) );\n\n\t\tif ( attributeNewValue ) {\n\t\t\twriter.setStyle( styleName, attributeNewValue, table );\n\t\t} else {\n\t\t\twriter.removeStyle( styleName, table );\n\t\t}\n\t} ) );\n}\n\n// Reduces the full top, right, bottom, left object to a single string if all sides are equal.\nfunction reduceBoxSidesValue( style ) {\n\tif ( !style ) {\n\t\treturn;\n\t}\n\n\tconst commonValue = [ 'top', 'right', 'bottom', 'left' ]\n\t\t.map( side => style[ side ] )\n\t\t.reduce( ( result, side ) => result == side ? result : null );\n\n\treturn commonValue || style;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/common\n */\n\nimport { downcastAttributeToStyle, upcastStyleToAttribute } from './../converters/tableproperties';\n\n/**\n * A common method to update the numeric value. If a value is the default one, it will be unset.\n *\n * @param {String} key An attribute key.\n * @param {*} value The new attribute value.\n * @param {module:engine/model/item~Item} item A model item on which the attribute will be set.\n * @param {module:engine/model/writer~Writer} writer\n * @param {*} defaultValue The default attribute value. If a value is lower or equal, it will be unset.\n */\nexport function updateNumericAttribute( key, value, item, writer, defaultValue = 1 ) {\n\tif ( value > defaultValue ) {\n\t\twriter.setAttribute( key, value, item );\n\t} else {\n\t\twriter.removeAttribute( key, item );\n\t}\n}\n\n/**\n * A common method to create an empty table cell. It creates a proper model structure as a table cell must have at least one block inside.\n *\n * @param {module:engine/model/writer~Writer} writer The model writer.\n * @param {module:engine/model/position~Position} insertPosition The position at which the table cell should be inserted.\n * @param {Object} attributes The element attributes.\n * @returns {module:engine/model/element~Element} Created table cell.\n */\nexport function createEmptyTableCell( writer, insertPosition, attributes = {} ) {\n\tconst tableCell = writer.createElement( 'tableCell', attributes );\n\n\twriter.insertElement( 'paragraph', tableCell );\n\twriter.insert( tableCell, insertPosition );\n\n\treturn tableCell;\n}\n\n/**\n * Checks if a table cell belongs to the heading column section.\n *\n * @param {module:table/tableutils~TableUtils} tableUtils\n * @param {module:engine/model/element~Element} tableCell\n * @returns {Boolean}\n */\nexport function isHeadingColumnCell( tableUtils, tableCell ) {\n\tconst table = tableCell.parent.parent;\n\tconst headingColumns = parseInt( table.getAttribute( 'headingColumns' ) || 0 );\n\tconst { column } = tableUtils.getCellLocation( tableCell );\n\n\treturn !!headingColumns && column < headingColumns;\n}\n\n/**\n * Enables conversion for an attribute for simple view-model mappings.\n *\n * @param {module:engine/model/schema~Schema} schema\n * @param {module:engine/conversion/conversion~Conversion} conversion\n * @param {Object} options\n * @param {String} options.modelAttribute\n * @param {String} options.styleName\n * @param {String} options.defaultValue The default value for the specified `modelAttribute`.\n * @param {Boolean} [options.reduceBoxSides=false]\n */\nexport function enableProperty( schema, conversion, options ) {\n\tconst { modelAttribute } = options;\n\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: [ modelAttribute ]\n\t} );\n\n\tupcastStyleToAttribute( conversion, { viewElement: /^(td|th)$/, ...options } );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', ...options } );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/upcasttable\n */\n\nimport { createEmptyTableCell } from '../utils/common';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * Returns a function that converts the table view representation:\n *\n *\t\t<figure class=\"table\"><table>...</table></figure>\n *\n * to the model representation:\n *\n *\t\t<table></table>\n *\n * @returns {Function}\n */\nexport function upcastTableFigure() {\n\treturn dispatcher => {\n\t\tdispatcher.on( 'element:figure', ( evt, data, conversionApi ) => {\n\t\t\t// Do not convert if this is not a \"table figure\".\n\t\t\tif ( !conversionApi.consumable.test( data.viewItem, { name: true, classes: 'table' } ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Find a table element inside the figure element.\n\t\t\tconst viewTable = getViewTableFromFigure( data.viewItem );\n\n\t\t\t// Do not convert if table element is absent or was already converted.\n\t\t\tif ( !viewTable || !conversionApi.consumable.test( viewTable, { name: true } ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Consume the figure to prevent other converters from processing it again.\n\t\t\tconversionApi.consumable.consume( data.viewItem, { name: true, classes: 'table' } );\n\n\t\t\t// Convert view table to model table.\n\t\t\tconst conversionResult = conversionApi.convertItem( viewTable, data.modelCursor );\n\n\t\t\t// Get table element from conversion result.\n\t\t\tconst modelTable = first( conversionResult.modelRange.getItems() );\n\n\t\t\t// When table wasn't successfully converted then finish conversion.\n\t\t\tif ( !modelTable ) {\n\t\t\t\t// Revert consumed figure so other features can convert it.\n\t\t\t\tconversionApi.consumable.revert( data.viewItem, { name: true, classes: 'table' } );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconversionApi.convertChildren( data.viewItem, conversionApi.writer.createPositionAt( modelTable, 'end' ) );\n\t\t\tconversionApi.updateConversionResult( modelTable, data );\n\t\t} );\n\t};\n}\n\n/**\n * View table element to model table element conversion helper.\n *\n * This conversion helper converts the table element as well as table rows.\n *\n * @returns {Function} Conversion helper.\n */\nexport default function upcastTable() {\n\treturn dispatcher => {\n\t\tdispatcher.on( 'element:table', ( evt, data, conversionApi ) => {\n\t\t\tconst viewTable = data.viewItem;\n\n\t\t\t// When element was already consumed then skip it.\n\t\t\tif ( !conversionApi.consumable.test( viewTable, { name: true } ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { rows, headingRows, headingColumns } = scanTable( viewTable );\n\n\t\t\t// Only set attributes if values is greater then 0.\n\t\t\tconst attributes = {};\n\n\t\t\tif ( headingColumns ) {\n\t\t\t\tattributes.headingColumns = headingColumns;\n\t\t\t}\n\n\t\t\tif ( headingRows ) {\n\t\t\t\tattributes.headingRows = headingRows;\n\t\t\t}\n\n\t\t\tconst table = conversionApi.writer.createElement( 'table', attributes );\n\n\t\t\tif ( !conversionApi.safeInsert( table, data.modelCursor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconversionApi.consumable.consume( viewTable, { name: true } );\n\n\t\t\t// Upcast table rows in proper order (heading rows first).\n\t\t\trows.forEach( row => conversionApi.convertItem( row, conversionApi.writer.createPositionAt( table, 'end' ) ) );\n\n\t\t\t// Convert everything else.\n\t\t\tconversionApi.convertChildren( viewTable, conversionApi.writer.createPositionAt( table, 'end' ) );\n\n\t\t\t// Create one row and one table cell for empty table.\n\t\t\tif ( table.isEmpty ) {\n\t\t\t\tconst row = conversionApi.writer.createElement( 'tableRow' );\n\t\t\t\tconversionApi.writer.insert( row, conversionApi.writer.createPositionAt( table, 'end' ) );\n\n\t\t\t\tcreateEmptyTableCell( conversionApi.writer, conversionApi.writer.createPositionAt( row, 'end' ) );\n\t\t\t}\n\n\t\t\tconversionApi.updateConversionResult( table, data );\n\t\t} );\n\t};\n}\n\n/**\n * A conversion helper that skips empty <tr> elements from upcasting at the beginning of the table.\n *\n * An empty row is considered a table model error but when handling clipboard data there could be rows that contain only row-spanned cells\n * and empty TR-s are used to maintain the table structure (also {@link module:table/tablewalker~TableWalker} assumes that there are only\n * rows that have related `tableRow` elements).\n *\n * *Note:* Only the first empty rows are removed because they have no meaning and it solves the issue\n * of an improper table with all empty rows.\n *\n * @returns {Function} Conversion helper.\n */\nexport function skipEmptyTableRow() {\n\treturn dispatcher => {\n\t\tdispatcher.on( 'element:tr', ( evt, data ) => {\n\t\t\tif ( data.viewItem.isEmpty && data.modelCursor.index == 0 ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t};\n}\n\n/**\n * A converter that ensures an empty paragraph is inserted in a table cell if no other content was converted.\n *\n * @returns {Function} Conversion helper.\n */\nexport function ensureParagraphInTableCell( elementName ) {\n\treturn dispatcher => {\n\t\tdispatcher.on( `element:${ elementName }`, ( evt, data, conversionApi ) => {\n\t\t\t// The default converter will create a model range on converted table cell.\n\t\t\tif ( !data.modelRange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Ensure a paragraph in the model for empty table cells for converted table cells.\n\t\t\tif ( data.viewItem.isEmpty ) {\n\t\t\t\tconst tableCell = data.modelRange.start.nodeAfter;\n\t\t\t\tconst modelCursor = conversionApi.writer.createPositionAt( tableCell, 0 );\n\n\t\t\t\tconversionApi.writer.insertElement( 'paragraph', modelCursor );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t};\n}\n\n// Get view `<table>` element from the view widget (`<figure>`).\n//\n// @private\n// @param {module:engine/view/element~Element} figureView\n// @returns {module:engine/view/element~Element}\nfunction getViewTableFromFigure( figureView ) {\n\tfor ( const figureChild of figureView.getChildren() ) {\n\t\tif ( figureChild.is( 'element', 'table' ) ) {\n\t\t\treturn figureChild;\n\t\t}\n\t}\n}\n\n// Scans table rows and extracts required metadata from the table:\n//\n// headingRows    - The number of rows that go as table headers.\n// headingColumns - The maximum number of row headings.\n// rows           - Sorted `<tr>` elements as they should go into the model - ie. if `<thead>` is inserted after `<tbody>` in the view.\n//\n// @private\n// @param {module:engine/view/element~Element} viewTable\n// @returns {{headingRows, headingColumns, rows}}\nfunction scanTable( viewTable ) {\n\tconst tableMeta = {\n\t\theadingRows: 0,\n\t\theadingColumns: 0\n\t};\n\n\t// The `<tbody>` and `<thead>` sections in the DOM do not have to be in order `<thead>` -> `<tbody>` and there might be more than one\n\t// of them.\n\t// As the model does not have these sections, rows from different sections must be sorted.\n\t// For example, below is a valid HTML table:\n\t//\n\t//\t\t<table>\n\t//\t\t\t<tbody><tr><td>2</td></tr></tbody>\n\t//\t\t\t<thead><tr><td>1</td></tr></thead>\n\t//\t\t\t<tbody><tr><td>3</td></tr></tbody>\n\t//\t\t</table>\n\t//\n\t// But browsers will render rows in order as: 1 as the heading and 2 and 3 as the body.\n\tconst headRows = [];\n\tconst bodyRows = [];\n\n\t// Currently the editor does not support more then one <thead> section.\n\t// Only the first <thead> from the view will be used as a heading row and the others will be converted to body rows.\n\tlet firstTheadElement;\n\n\tfor ( const tableChild of Array.from( viewTable.getChildren() ) ) {\n\t\t// Only `<thead>`, `<tbody>` & `<tfoot>` from allowed table children can have `<tr>`s.\n\t\t// The else is for future purposes (mainly `<caption>`).\n\t\tif ( tableChild.name === 'tbody' || tableChild.name === 'thead' || tableChild.name === 'tfoot' ) {\n\t\t\t// Save the first `<thead>` in the table as table header - all other ones will be converted to table body rows.\n\t\t\tif ( tableChild.name === 'thead' && !firstTheadElement ) {\n\t\t\t\tfirstTheadElement = tableChild;\n\t\t\t}\n\n\t\t\t// There might be some extra empty text nodes between the `<tr>`s.\n\t\t\t// Make sure further code operates on `tr`s only. (#145)\n\t\t\tconst trs = Array.from( tableChild.getChildren() ).filter( el => el.is( 'element', 'tr' ) );\n\n\t\t\tfor ( const tr of trs ) {\n\t\t\t\t// This <tr> is a child of a first <thead> element.\n\t\t\t\tif ( tr.parent.name === 'thead' && tr.parent === firstTheadElement ) {\n\t\t\t\t\ttableMeta.headingRows++;\n\t\t\t\t\theadRows.push( tr );\n\t\t\t\t} else {\n\t\t\t\t\tbodyRows.push( tr );\n\t\t\t\t\t// For other rows check how many column headings this row has.\n\n\t\t\t\t\tconst headingCols = scanRowForHeadingColumns( tr, tableMeta, firstTheadElement );\n\n\t\t\t\t\tif ( headingCols > tableMeta.headingColumns ) {\n\t\t\t\t\t\ttableMeta.headingColumns = headingCols;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\ttableMeta.rows = [ ...headRows, ...bodyRows ];\n\n\treturn tableMeta;\n}\n\n// Scans a `<tr>` element and its children for metadata:\n// - For heading row:\n//     - Adds this row to either the heading or the body rows.\n//     - Updates the number of heading rows.\n// - For body rows:\n//     - Calculates the number of column headings.\n//\n// @private\n// @param {module:engine/view/element~Element} tr\n// @returns {Number}\nfunction scanRowForHeadingColumns( tr ) {\n\tlet headingColumns = 0;\n\tlet index = 0;\n\n\t// Filter out empty text nodes from tr children.\n\tconst children = Array.from( tr.getChildren() )\n\t\t.filter( child => child.name === 'th' || child.name === 'td' );\n\n\t// Count starting adjacent <th> elements of a <tr>.\n\twhile ( index < children.length && children[ index ].name === 'th' ) {\n\t\tconst th = children[ index ];\n\n\t\t// Adjust columns calculation by the number of spanned columns.\n\t\tconst colspan = parseInt( th.getAttribute( 'colspan' ) || 1 );\n\n\t\theadingColumns = headingColumns + colspan;\n\t\tindex++;\n\t}\n\n\treturn headingColumns;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablewalker\n */\n\n// @if CK_DEBUG // const { CKEditorError } = require( 'ckeditor5/src/utils' );\n\n/**\n * The table iterator class. It allows to iterate over table cells. For each cell the iterator yields\n * {@link module:table/tablewalker~TableSlot} with proper table cell attributes.\n */\nexport default class TableWalker {\n\t/**\n\t * Creates an instance of the table walker.\n\t *\n\t * The table walker iterates internally by traversing the table from row index = 0 and column index = 0.\n\t * It walks row by row and column by column in order to output values defined in the constructor.\n\t * By default it will output only the locations that are occupied by a cell. To include also spanned rows and columns,\n\t * pass the `includeAllSlots` option to the constructor.\n\t *\n\t * The most important values of the iterator are column and row indexes of a cell.\n\t *\n\t * See {@link module:table/tablewalker~TableSlot} what values are returned by the table walker.\n\t *\n\t * To iterate over a given row:\n\t *\n\t *\t\tconst tableWalker = new TableWalker( table, { startRow: 1, endRow: 2 } );\n\t *\n\t *\t\tfor ( const tableSlot of tableWalker ) {\n\t *\t\t\tconsole.log( 'A cell at row', tableSlot.row, 'and column', tableSlot.column );\n\t *\t\t}\n\t *\n\t * For instance the code above for the following table:\n\t *\n\t *\t\t+----+----+----+----+----+----+\n\t *\t\t| 00      | 02 | 03 | 04 | 05 |\n\t *\t\t|         +----+----+----+----+\n\t *\t\t|         | 12      | 14 | 15 |\n\t *\t\t|         +----+----+----+    +\n\t *\t\t|         | 22           |    |\n\t *\t\t|----+----+----+----+----+    +\n\t *\t\t| 30 | 31 | 32 | 33 | 34 |    |\n\t *\t\t+----+----+----+----+----+----+\n\t *\n\t * will log in the console:\n\t *\n\t *\t\t'A cell at row 1 and column 2'\n\t *\t\t'A cell at row 1 and column 4'\n\t *\t\t'A cell at row 1 and column 5'\n\t *\t\t'A cell at row 2 and column 2'\n\t *\n\t * To also iterate over spanned cells:\n\t *\n\t *\t\tconst tableWalker = new TableWalker( table, { row: 1, includeAllSlots: true } );\n\t *\n\t *\t\tfor ( const tableSlot of tableWalker ) {\n\t *\t\t\tconsole.log( 'Slot at', tableSlot.row, 'x', tableSlot.column, ':', tableSlot.isAnchor ? 'is anchored' : 'is spanned' );\n\t *\t\t}\n\t *\n\t * will log in the console for the table from the previous example:\n\t *\n\t *\t\t'Cell at 1 x 0 : is spanned'\n\t *\t\t'Cell at 1 x 1 : is spanned'\n\t *\t\t'Cell at 1 x 2 : is anchored'\n\t *\t\t'Cell at 1 x 3 : is spanned'\n\t *\t\t'Cell at 1 x 4 : is anchored'\n\t *\t\t'Cell at 1 x 5 : is anchored'\n\t *\n\t * **Note**: Option `row` is a shortcut that sets both `startRow` and `endRow` to the same row.\n\t * (Use either `row` or `startRow` and `endRow` but never together). Similarly the `column` option sets both `startColumn`\n\t * and `endColumn` to the same column (Use either `column` or `startColumn` and `endColumn` but never together).\n\t *\n\t * @constructor\n\t * @param {module:engine/model/element~Element} table A table over which the walker iterates.\n\t * @param {Object} [options={}] An object with configuration.\n\t * @param {Number} [options.row] A row index for which this iterator will output cells.\n\t * Can't be used together with `startRow` and `endRow`.\n\t * @param {Number} [options.startRow=0] A row index from which this iterator should start. Can't be used together with `row`.\n\t * @param {Number} [options.endRow] A row index at which this iterator should end. Can't be used together with `row`.\n\t * @param {Number} [options.column] A column index for which this iterator will output cells.\n\t * Can't be used together with `startColumn` and `endColumn`.\n\t * @param {Number} [options.startColumn=0] A column index from which this iterator should start. Can't be used together with `column`.\n\t * @param {Number} [options.endColumn] A column index at which this iterator should end. Can't be used together with `column`.\n\t * @param {Boolean} [options.includeAllSlots=false] Also return values for spanned cells.\n\t */\n\tconstructor( table, options = {} ) {\n\t\t/**\n\t\t * The walker's table element.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/element~Element}\n\t\t * @protected\n\t\t */\n\t\tthis._table = table;\n\n\t\t/**\n\t\t * A row index from which this iterator will start.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t * @private\n\t\t */\n\t\tthis._startRow = options.row !== undefined ? options.row : options.startRow || 0;\n\n\t\t/**\n\t\t * A row index at which this iterator will end.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t * @private\n\t\t */\n\t\tthis._endRow = options.row !== undefined ? options.row : options.endRow;\n\n\t\t/**\n\t\t * If set, the table walker will only output cells from a given column and following ones or cells that overlap them.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t * @private\n\t\t */\n\t\tthis._startColumn = options.column !== undefined ? options.column : options.startColumn || 0;\n\n\t\t/**\n\t\t * If set, the table walker will only output cells up to a given column.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t * @private\n\t\t */\n\t\tthis._endColumn = options.column !== undefined ? options.column : options.endColumn;\n\n\t\t/**\n\t\t * Enables output of spanned cells that are normally not yielded.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean}\n\t\t * @private\n\t\t */\n\t\tthis._includeAllSlots = !!options.includeAllSlots;\n\n\t\t/**\n\t\t * Row indexes to skip from the iteration.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Set<Number>}\n\t\t * @private\n\t\t */\n\t\tthis._skipRows = new Set();\n\n\t\t/**\n\t\t * The current row index.\n\t\t *\n\t\t * @member {Number}\n\t\t * @protected\n\t\t */\n\t\tthis._row = 0;\n\n\t\t/**\n\t\t * The index of the current row element in the table.\n\t\t *\n\t\t * @type {Number}\n\t\t * @protected\n\t\t */\n\t\tthis._rowIndex = 0;\n\n\t\t/**\n\t\t * The current column index.\n\t\t *\n\t\t * @member {Number}\n\t\t * @protected\n\t\t */\n\t\tthis._column = 0;\n\n\t\t/**\n\t\t * The cell index in a parent row. For spanned cells when {@link #_includeAllSlots} is set to `true`,\n\t\t * this represents the index of the next table cell.\n\t\t *\n\t\t * @member {Number}\n\t\t * @protected\n\t\t */\n\t\tthis._cellIndex = 0;\n\n\t\t/**\n\t\t * Holds a map of spanned cells in a table.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Map.<Number, Map.<Number, Object>>}\n\t\t * @private\n\t\t */\n\t\tthis._spannedCells = new Map();\n\n\t\t/**\n\t\t * Index of the next column where a cell is anchored.\n\t\t *\n\t\t * @member {Number}\n\t\t * @private\n\t\t */\n\t\tthis._nextCellAtColumn = -1;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * @returns {Iterable.<module:table/tablewalker~TableSlot>}\n\t */\n\t[ Symbol.iterator ]() {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Gets the next table walker's value.\n\t *\n\t * @returns {module:table/tablewalker~TableSlot} The next table walker's value.\n\t */\n\tnext() {\n\t\tconst row = this._table.getChild( this._rowIndex );\n\n\t\t// Iterator is done when there's no row (table ended) or the row is after `endRow` limit.\n\t\tif ( !row || this._isOverEndRow() ) {\n\t\t\treturn { done: true };\n\t\t}\n\n\t\t// We step over current element when it is not a tableRow instance.\n\t\tif ( !row.is( 'element', 'tableRow' ) ) {\n\t\t\tthis._rowIndex++;\n\n\t\t\treturn this.next();\n\t\t}\n\n\t\tif ( this._isOverEndColumn() ) {\n\t\t\treturn this._advanceToNextRow();\n\t\t}\n\n\t\tlet outValue = null;\n\n\t\tconst spanData = this._getSpanned();\n\n\t\tif ( spanData ) {\n\t\t\tif ( this._includeAllSlots && !this._shouldSkipSlot() ) {\n\t\t\t\toutValue = this._formatOutValue( spanData.cell, spanData.row, spanData.column );\n\t\t\t}\n\t\t} else {\n\t\t\tconst cell = row.getChild( this._cellIndex );\n\n\t\t\tif ( !cell ) {\n\t\t\t\t// If there are no more cells left in row advance to the next row.\n\t\t\t\treturn this._advanceToNextRow();\n\t\t\t}\n\n\t\t\tconst colspan = parseInt( cell.getAttribute( 'colspan' ) || 1 );\n\t\t\tconst rowspan = parseInt( cell.getAttribute( 'rowspan' ) || 1 );\n\n\t\t\t// Record this cell spans if it's not 1x1 cell.\n\t\t\tif ( colspan > 1 || rowspan > 1 ) {\n\t\t\t\tthis._recordSpans( cell, rowspan, colspan );\n\t\t\t}\n\n\t\t\tif ( !this._shouldSkipSlot() ) {\n\t\t\t\toutValue = this._formatOutValue( cell );\n\t\t\t}\n\n\t\t\tthis._nextCellAtColumn = this._column + colspan;\n\t\t}\n\n\t\t// Advance to the next column before returning value.\n\t\tthis._column++;\n\n\t\tif ( this._column == this._nextCellAtColumn ) {\n\t\t\tthis._cellIndex++;\n\t\t}\n\n\t\t// The current value will be returned only if current row and column are not skipped.\n\t\treturn outValue || this.next();\n\t}\n\n\t/**\n\t * Marks a row to skip in the next iteration. It will also skip cells from the current row if there are any cells from the current row\n\t * to output.\n\t *\n\t * @param {Number} row The row index to skip.\n\t */\n\tskipRow( row ) {\n\t\tthis._skipRows.add( row );\n\t}\n\n\t/**\n\t * Advances internal cursor to the next row.\n\t *\n\t * @private\n\t * @returns {module:table/tablewalker~TableSlot}\n\t */\n\t_advanceToNextRow() {\n\t\tthis._row++;\n\t\tthis._rowIndex++;\n\t\tthis._column = 0;\n\t\tthis._cellIndex = 0;\n\t\tthis._nextCellAtColumn = -1;\n\n\t\treturn this.next();\n\t}\n\n\t/**\n\t * Checks if the current row is over {@link #_endRow}.\n\t *\n\t * @private\n\t * @returns {Boolean}\n\t */\n\t_isOverEndRow() {\n\t\t// If #_endRow is defined skip all rows after it.\n\t\treturn this._endRow !== undefined && this._row > this._endRow;\n\t}\n\n\t/**\n\t * Checks if the current cell is over {@link #_endColumn}\n\t *\n\t * @private\n\t * @returns {Boolean}\n\t */\n\t_isOverEndColumn() {\n\t\t// If #_endColumn is defined skip all cells after it.\n\t\treturn this._endColumn !== undefined && this._column > this._endColumn;\n\t}\n\n\t/**\n\t * A common method for formatting the iterator's output value.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} cell The table cell to output.\n\t * @param {Number} [anchorRow] The row index of a cell anchor slot.\n\t * @param {Number} [anchorColumn] The column index of a cell anchor slot.\n\t * @returns {{done: Boolean, value: {cell: *, row: Number, column: *, rowspan: *, colspan: *, cellIndex: Number}}}\n\t */\n\t_formatOutValue( cell, anchorRow = this._row, anchorColumn = this._column ) {\n\t\treturn {\n\t\t\tdone: false,\n\t\t\tvalue: new TableSlot( this, cell, anchorRow, anchorColumn )\n\t\t};\n\t}\n\n\t/**\n\t * Checks if the current slot should be skipped.\n\t *\n\t * @private\n\t * @returns {Boolean}\n\t */\n\t_shouldSkipSlot() {\n\t\tconst rowIsMarkedAsSkipped = this._skipRows.has( this._row );\n\t\tconst rowIsBeforeStartRow = this._row < this._startRow;\n\n\t\tconst columnIsBeforeStartColumn = this._column < this._startColumn;\n\t\tconst columnIsAfterEndColumn = this._endColumn !== undefined && this._column > this._endColumn;\n\n\t\treturn rowIsMarkedAsSkipped || rowIsBeforeStartRow || columnIsBeforeStartColumn || columnIsAfterEndColumn;\n\t}\n\n\t/**\n\t * Returns the cell element that is spanned over the current cell location.\n\t *\n\t * @private\n\t * @returns {module:engine/model/element~Element}\n\t */\n\t_getSpanned() {\n\t\tconst rowMap = this._spannedCells.get( this._row );\n\n\t\t// No spans for given row.\n\t\tif ( !rowMap ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// If spans for given rows has entry for column it means that this location if spanned by other cell.\n\t\treturn rowMap.get( this._column ) || null;\n\t}\n\n\t/**\n\t * Updates spanned cells map relative to the current cell location and its span dimensions.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} cell A cell that is spanned.\n\t * @param {Number} rowspan Cell height.\n\t * @param {Number} colspan Cell width.\n\t */\n\t_recordSpans( cell, rowspan, colspan ) {\n\t\tconst data = {\n\t\t\tcell,\n\t\t\trow: this._row,\n\t\t\tcolumn: this._column\n\t\t};\n\n\t\tfor ( let rowToUpdate = this._row; rowToUpdate < this._row + rowspan; rowToUpdate++ ) {\n\t\t\tfor ( let columnToUpdate = this._column; columnToUpdate < this._column + colspan; columnToUpdate++ ) {\n\t\t\t\tif ( rowToUpdate != this._row || columnToUpdate != this._column ) {\n\t\t\t\t\tthis._markSpannedCell( rowToUpdate, columnToUpdate, data );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Marks the cell location as spanned by another cell.\n\t *\n\t * @private\n\t * @param {Number} row The row index of the cell location.\n\t * @param {Number} column The column index of the cell location.\n\t * @param {Object} data A spanned cell details (cell element, anchor row and column).\n\t */\n\t_markSpannedCell( row, column, data ) {\n\t\tif ( !this._spannedCells.has( row ) ) {\n\t\t\tthis._spannedCells.set( row, new Map() );\n\t\t}\n\n\t\tconst rowSpans = this._spannedCells.get( row );\n\n\t\trowSpans.set( column, data );\n\t}\n}\n\n/**\n * An object returned by {@link module:table/tablewalker~TableWalker} when traversing table cells.\n */\nclass TableSlot {\n\t/**\n\t * Creates an instance of the table walker value.\n\t *\n\t * @protected\n\t * @param {module:table/tablewalker~TableWalker} tableWalker The table walker instance.\n\t * @param {module:engine/model/element~Element} cell The current table cell.\n\t * @param {Number} anchorRow The row index of a cell anchor slot.\n\t * @param {Number} anchorColumn The column index of a cell anchor slot.\n\t */\n\tconstructor( tableWalker, cell, anchorRow, anchorColumn ) {\n\t\t/**\n\t\t * The current table cell.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/element~Element}\n\t\t */\n\t\tthis.cell = cell;\n\n\t\t/**\n\t\t * The row index of a table slot.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.row = tableWalker._row;\n\n\t\t/**\n\t\t * The column index of a table slot.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.column = tableWalker._column;\n\n\t\t/**\n\t\t * The row index of a cell anchor slot.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.cellAnchorRow = anchorRow;\n\n\t\t/**\n\t\t * The column index of a cell anchor slot.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t */\n\t\tthis.cellAnchorColumn = anchorColumn;\n\n\t\t/**\n\t\t * The index of the current cell in the parent row.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t * @private\n\t\t */\n\t\tthis._cellIndex = tableWalker._cellIndex;\n\n\t\t/**\n\t\t * The index of the current row element in the table.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Number}\n\t\t * @private\n\t\t */\n\t\tthis._rowIndex = tableWalker._rowIndex;\n\n\t\t/**\n\t\t * The table element.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:engine/model/element~Element}\n\t\t * @private\n\t\t */\n\t\tthis._table = tableWalker._table;\n\t}\n\n\t/**\n\t * Whether the cell is anchored in the current slot.\n\t *\n\t * @readonly\n\t * @returns {Boolean}\n\t */\n\tget isAnchor() {\n\t\treturn this.row === this.cellAnchorRow && this.column === this.cellAnchorColumn;\n\t}\n\n\t/**\n\t * The width of a cell defined by a `colspan` attribute. If the model attribute is not present, it is set to `1`.\n\t *\n\t * @readonly\n\t * @returns {Number}\n\t */\n\tget cellWidth() {\n\t\treturn parseInt( this.cell.getAttribute( 'colspan' ) || 1 );\n\t}\n\n\t/**\n\t * The height of a cell defined by a `rowspan` attribute. If the model attribute is not present, it is set to `1`.\n\t *\n\t * @readonly\n\t * @returns {Number}\n\t */\n\tget cellHeight() {\n\t\treturn parseInt( this.cell.getAttribute( 'rowspan' ) || 1 );\n\t}\n\n\t/**\n\t * The index of the current row element in the table.\n\t *\n\t * @readonly\n\t * @returns {Number}\n\t */\n\tget rowIndex() {\n\t\treturn this._rowIndex;\n\t}\n\n\t/**\n\t * Returns the {@link module:engine/model/position~Position} before the table slot.\n\t *\n\t * @returns {module:engine/model/position~Position}\n\t */\n\tgetPositionBefore() {\n\t\tconst model = this._table.root.document.model;\n\n\t\treturn model.createPositionAt( this._table.getChild( this.row ), this._cellIndex );\n\t}\n\n\t// @if CK_DEBUG // get isSpanned() { throwMissingGetterError( 'isSpanned' ); }\n\t// @if CK_DEBUG // get colspan() { throwMissingGetterError( 'colspan' ); }\n\t// @if CK_DEBUG // get rowspan() { throwMissingGetterError( 'rowspan' ); }\n\t// @if CK_DEBUG // get cellIndex() { throwMissingGetterError( 'cellIndex' ); }\n}\n\n/**\n * This `TableSlot`'s getter (property) was removed in CKEditor 5 v20.0.0.\n *\n * Check out the new `TableWalker`'s API in the documentation.\n *\n * @error tableslot-getter-removed\n * @param {String} getterName\n */\n\n// @if CK_DEBUG // function throwMissingGetterError( getterName ) {\n// @if CK_DEBUG //\t\tthrow new CKEditorError( 'tableslot-getter-removed', this, {\n// @if CK_DEBUG //\t\t\tgetterName\n// @if CK_DEBUG //\t\t} );\n// @if CK_DEBUG // }\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/downcast\n */\n\nimport TableWalker from './../tablewalker';\nimport { toWidget, toWidgetEditable } from 'ckeditor5/src/widget';\n\n/**\n * Model table element to view table element conversion helper.\n *\n * @param {module:table/tableutils~TableUtils} tableUtils The `TableUtils` plugin instance.\n * @param {Object} [options]\n * @param {Boolean} [options.asWidget] If set to `true`, the downcast conversion will produce a widget.\n * @returns {Function} Element creator.\n */\nexport function downcastTable( tableUtils, options = {} ) {\n\treturn ( table, { writer } ) => {\n\t\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\t\tconst tableSections = [];\n\n\t\t// Table head slot.\n\t\tif ( headingRows > 0 ) {\n\t\t\ttableSections.push(\n\t\t\t\twriter.createContainerElement( 'thead', null,\n\t\t\t\t\twriter.createSlot( element => element.is( 'element', 'tableRow' ) && element.index < headingRows )\n\t\t\t\t)\n\t\t\t);\n\t\t}\n\n\t\t// Table body slot.\n\t\tif ( headingRows < tableUtils.getRows( table ) ) {\n\t\t\ttableSections.push(\n\t\t\t\twriter.createContainerElement( 'tbody', null,\n\t\t\t\t\twriter.createSlot( element => element.is( 'element', 'tableRow' ) && element.index >= headingRows )\n\t\t\t\t)\n\t\t\t);\n\t\t}\n\n\t\tconst figureElement = writer.createContainerElement( 'figure', { class: 'table' }, [\n\t\t\t// Table with proper sections (thead, tbody).\n\t\t\twriter.createContainerElement( 'table', null, tableSections ),\n\n\t\t\t// Slot for the rest (for example caption).\n\t\t\twriter.createSlot( element => !element.is( 'element', 'tableRow' ) )\n\t\t] );\n\n\t\treturn options.asWidget ? toTableWidget( figureElement, writer ) : figureElement;\n\t};\n}\n\n/**\n * Model table row element to view `<tr>` element conversion helper.\n *\n * @returns {Function} Element creator.\n */\nexport function downcastRow() {\n\treturn ( tableRow, { writer } ) => {\n\t\treturn tableRow.isEmpty ?\n\t\t\twriter.createEmptyElement( 'tr' ) :\n\t\t\twriter.createContainerElement( 'tr' );\n\t};\n}\n\n/**\n * Model table cell element to view `<td>` or `<th>` element conversion helper.\n *\n * This conversion helper will create proper `<th>` elements for table cells that are in the heading section (heading row or column)\n * and `<td>` otherwise.\n *\n * @param {Object} [options]\n * @param {Boolean} [options.asWidget] If set to `true`, the downcast conversion will produce a widget.\n * @returns {Function} Element creator.\n */\nexport function downcastCell( options = {} ) {\n\treturn ( tableCell, { writer } ) => {\n\t\tconst tableRow = tableCell.parent;\n\t\tconst table = tableRow.parent;\n\t\tconst rowIndex = table.getChildIndex( tableRow );\n\n\t\tconst tableWalker = new TableWalker( table, { row: rowIndex } );\n\t\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\t\tconst headingColumns = table.getAttribute( 'headingColumns' ) || 0;\n\n\t\t// We need to iterate over a table in order to get proper row & column values from a walker.\n\t\tfor ( const tableSlot of tableWalker ) {\n\t\t\tif ( tableSlot.cell == tableCell ) {\n\t\t\t\tconst isHeading = tableSlot.row < headingRows || tableSlot.column < headingColumns;\n\t\t\t\tconst cellElementName = isHeading ? 'th' : 'td';\n\n\t\t\t\treturn options.asWidget ?\n\t\t\t\t\ttoWidgetEditable( writer.createEditableElement( cellElementName ), writer ) :\n\t\t\t\t\twriter.createContainerElement( cellElementName );\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Overrides paragraph inside table cell conversion.\n *\n * This converter:\n * * should be used to override default paragraph conversion.\n * * It will only convert `<paragraph>` placed directly inside `<tableCell>`.\n * * For a single paragraph without attributes it returns `<span>` to simulate data table.\n * * For all other cases it returns `<p>` element.\n *\n * @param {Object} [options]\n * @param {Boolean} [options.asWidget] If set to `true`, the downcast conversion will produce a widget.\n * @returns {Function} Element creator.\n */\nexport function convertParagraphInTableCell( options = {} ) {\n\treturn ( modelElement, { writer, consumable, mapper } ) => {\n\t\tif ( !modelElement.parent.is( 'element', 'tableCell' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !isSingleParagraphWithoutAttributes( modelElement ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( options.asWidget ) {\n\t\t\treturn writer.createContainerElement( 'span', { class: 'ck-table-bogus-paragraph' } );\n\t\t} else {\n\t\t\t// Additional requirement for data pipeline to have backward compatible data tables.\n\t\t\tconsumable.consume( modelElement, 'insert' );\n\t\t\tmapper.bindElements( modelElement, mapper.toViewElement( modelElement.parent ) );\n\t\t}\n\t};\n}\n\n/**\n * Checks if given model `<paragraph>` is an only child of a parent (`<tableCell>`) and if it has any attribute set.\n *\n * The paragraph should be converted in the editing view to:\n *\n * * If returned `true` - to a `<span class=\"ck-table-bogus-paragraph\">`\n * * If returned `false` - to a `<p>`\n *\n * @param {module:engine/model/element~Element} modelElement\n * @returns {Boolean}\n */\nexport function isSingleParagraphWithoutAttributes( modelElement ) {\n\tconst tableCell = modelElement.parent;\n\n\tconst isSingleParagraph = tableCell.childCount == 1;\n\n\treturn isSingleParagraph && !hasAnyAttribute( modelElement );\n}\n\n// Converts a given {@link module:engine/view/element~Element} to a table widget:\n// * Adds a {@link module:engine/view/element~Element#_setCustomProperty custom property} allowing to recognize the table widget element.\n// * Calls the {@link module:widget/utils~toWidget} function with the proper element's label creator.\n//\n// @param {module:engine/view/element~Element} viewElement\n// @param {module:engine/view/downcastwriter~DowncastWriter} writer An instance of the view writer.\n// @param {String} label The element's label. It will be concatenated with the table `alt` attribute if one is present.\n// @returns {module:engine/view/element~Element}\nfunction toTableWidget( viewElement, writer ) {\n\twriter.setCustomProperty( 'table', true, viewElement );\n\n\treturn toWidget( viewElement, writer, { hasSelectionHandle: true } );\n}\n\n// Checks if an element has any attributes set.\n//\n// @param {module:engine/model/element~Element element\n// @returns {Boolean}\nfunction hasAnyAttribute( element ) {\n\treturn !![ ...element.getAttributeKeys() ].length;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/inserttablecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The insert table command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'insertTable'` editor command.\n *\n * To insert a table at the current selection, execute the command and specify the dimensions:\n *\n *\t\teditor.execute( 'insertTable', { rows: 20, columns: 5 } );\n *\n * @extends module:core/command~Command\n */\nexport default class InsertTableCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst schema = model.schema;\n\n\t\tthis.isEnabled = isAllowedInParent( selection, schema );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Inserts a table with the given number of rows and columns into the editor.\n\t *\n\t * @param {Object} options\n\t * @param {Number} [options.rows=2] The number of rows to create in the inserted table.\n\t * @param {Number} [options.columns=2] The number of columns to create in the inserted table.\n\t * @param {Number} [options.headingRows] The number of heading rows.\n\t * If not provided it will default to {@link module:table/table~TableConfig#defaultHeadings `config.table.defaultHeadings.rows`}\n\t * table config.\n\t * @param {Number} [options.headingColumns] The number of heading columns.\n\t * If not provided it will default to {@link module:table/table~TableConfig#defaultHeadings `config.table.defaultHeadings.columns`}\n\t * table config.\n\t * @fires execute\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst config = this.editor.config.get( 'table' );\n\n\t\tconst defaultRows = config.defaultHeadings.rows;\n\t\tconst defaultColumns = config.defaultHeadings.columns;\n\n\t\tif ( options.headingRows === undefined && defaultRows ) {\n\t\t\toptions.headingRows = defaultRows;\n\t\t}\n\n\t\tif ( options.headingColumns === undefined && defaultColumns ) {\n\t\t\toptions.headingColumns = defaultColumns;\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tconst table = tableUtils.createTable( writer, options );\n\n\t\t\tmodel.insertObject( table, null, null, { findOptimalPosition: 'auto' } );\n\n\t\t\twriter.setSelection( writer.createPositionAt( table.getNodeByPath( [ 0, 0, 0 ] ), 0 ) );\n\t\t} );\n\t}\n}\n\n// Checks if the table is allowed in the parent.\n//\n// @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n// @param {module:engine/model/schema~Schema} schema\n// @returns {Boolean}\nfunction isAllowedInParent( selection, schema ) {\n\tconst positionParent = selection.getFirstPosition().parent;\n\tconst validParent = positionParent === positionParent.root ? positionParent : positionParent.parent;\n\n\treturn schema.checkChild( validParent, 'table' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/insertrowcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The insert row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'insertTableRowBelow'` and\n * `'insertTableRowAbove'` editor commands.\n *\n * To insert a row below the selected cell, execute the following command:\n *\n *\t\teditor.execute( 'insertTableRowBelow' );\n *\n * To insert a row above the selected cell, execute the following command:\n *\n *\t\teditor.execute( 'insertTableRowAbove' );\n *\n * @extends module:core/command~Command\n */\nexport default class InsertRowCommand extends Command {\n\t/**\n\t * Creates a new `InsertRowCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor on which this command will be used.\n\t * @param {Object} options\n\t * @param {String} [options.order=\"below\"] The order of insertion relative to the row in which the caret is located.\n\t * Possible values: `\"above\"` and `\"below\"`.\n\t */\n\tconstructor( editor, options = {} ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The order of insertion relative to the row in which the caret is located.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String} module:table/commands/insertrowcommand~InsertRowCommand#order\n\t\t */\n\t\tthis.order = options.order || 'below';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst isAnyCellSelected = !!tableUtils.getSelectionAffectedTableCells( selection ).length;\n\n\t\tthis.isEnabled = isAnyCellSelected;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Depending on the command's {@link #order} value, it inserts a row `'below'` or `'above'` the row in which selection is set.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst tableUtils = editor.plugins.get( 'TableUtils' );\n\t\tconst insertAbove = this.order === 'above';\n\n\t\tconst affectedTableCells = tableUtils.getSelectionAffectedTableCells( selection );\n\t\tconst rowIndexes = tableUtils.getRowIndexes( affectedTableCells );\n\n\t\tconst row = insertAbove ? rowIndexes.first : rowIndexes.last;\n\t\tconst table = affectedTableCells[ 0 ].findAncestor( 'table' );\n\n\t\ttableUtils.insertRows( table, { at: insertAbove ? row : row + 1, copyStructureFromAbove: !insertAbove } );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/insertcolumncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The insert column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'insertTableColumnLeft'` and\n * `'insertTableColumnRight'` editor commands.\n *\n * To insert a column to the left of the selected cell, execute the following command:\n *\n *\t\teditor.execute( 'insertTableColumnLeft' );\n *\n * To insert a column to the right of the selected cell, execute the following command:\n *\n *\t\teditor.execute( 'insertTableColumnRight' );\n *\n * @extends module:core/command~Command\n */\nexport default class InsertColumnCommand extends Command {\n\t/**\n\t * Creates a new `InsertColumnCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor on which this command will be used.\n\t * @param {Object} options\n\t * @param {String} [options.order=\"right\"] The order of insertion relative to the column in which the caret is located.\n\t * Possible values: `\"left\"` and `\"right\"`.\n\t */\n\tconstructor( editor, options = {} ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The order of insertion relative to the column in which the caret is located.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String} module:table/commands/insertcolumncommand~InsertColumnCommand#order\n\t\t */\n\t\tthis.order = options.order || 'right';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst isAnyCellSelected = !!tableUtils.getSelectionAffectedTableCells( selection ).length;\n\n\t\tthis.isEnabled = isAnyCellSelected;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Depending on the command's {@link #order} value, it inserts a column to the `'left'` or `'right'` of the column\n\t * in which the selection is set.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst tableUtils = editor.plugins.get( 'TableUtils' );\n\t\tconst insertBefore = this.order === 'left';\n\n\t\tconst affectedTableCells = tableUtils.getSelectionAffectedTableCells( selection );\n\t\tconst columnIndexes = tableUtils.getColumnIndexes( affectedTableCells );\n\n\t\tconst column = insertBefore ? columnIndexes.first : columnIndexes.last;\n\t\tconst table = affectedTableCells[ 0 ].findAncestor( 'table' );\n\n\t\ttableUtils.insertColumns( table, { columns: 1, at: insertBefore ? column : column + 1 } );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/splitcellcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The split cell command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'splitTableCellVertically'`\n * and `'splitTableCellHorizontally'`  editor commands.\n *\n * You can split any cell vertically or horizontally by executing this command. For example, to split the selected table cell vertically:\n *\n *\t\teditor.execute( 'splitTableCellVertically' );\n *\n * @extends module:core/command~Command\n */\nexport default class SplitCellCommand extends Command {\n\t/**\n\t * Creates a new `SplitCellCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor on which this command will be used.\n\t * @param {Object} options\n\t * @param {String} options.direction Indicates whether the command should split cells `'horizontally'` or `'vertically'`.\n\t */\n\tconstructor( editor, options = {} ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The direction that indicates which cell will be split.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String} #direction\n\t\t */\n\t\tthis.direction = options.direction || 'horizontally';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = selectedCells.length === 1;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCell = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection )[ 0 ];\n\t\tconst isHorizontal = this.direction === 'horizontally';\n\n\t\tif ( isHorizontal ) {\n\t\t\ttableUtils.splitCellHorizontally( tableCell, 2 );\n\t\t} else {\n\t\t\ttableUtils.splitCellVertically( tableCell, 2 );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/structure\n */\n\nimport TableWalker from '../tablewalker';\nimport { createEmptyTableCell, updateNumericAttribute } from './common';\n\n/**\n * Returns a cropped table according to given dimensions.\n\n * To return a cropped table that starts at first row and first column and end in third row and column:\n *\n *\t\tconst croppedTable = cropTableToDimensions( table, {\n *\t\t\tstartRow: 1,\n *\t\t\tendRow: 3,\n *\t\t\tstartColumn: 1,\n *\t\t\tendColumn: 3\n *\t\t}, writer );\n *\n * Calling the code above for the table below:\n *\n *\t\t      0   1   2   3   4                      0   1   2\n *\t\t    ┌───┬───┬───┬───┬───┐\n *\t\t 0  │ a │ b │ c │ d │ e │\n *\t\t    ├───┴───┤   ├───┴───┤                  ┌───┬───┬───┐\n *\t\t 1  │ f     │   │ g     │                  │   │   │ g │  0\n *\t\t    ├───┬───┴───┼───┬───┤   will return:   ├───┴───┼───┤\n *\t\t 2  │ h │ i     │ j │ k │                  │ i     │ j │  1\n *\t\t    ├───┤       ├───┤   │                  │       ├───┤\n *\t\t 3  │ l │       │ m │   │                  │       │ m │  2\n *\t\t    ├───┼───┬───┤   ├───┤                  └───────┴───┘\n *\t\t 4  │ n │ o │ p │   │ q │\n *\t\t    └───┴───┴───┴───┴───┘\n *\n * @param {module:engine/model/element~Element} sourceTable\n * @param {Object} cropDimensions\n * @param {Number} cropDimensions.startRow\n * @param {Number} cropDimensions.startColumn\n * @param {Number} cropDimensions.endRow\n * @param {Number} cropDimensions.endColumn\n * @param {module:engine/model/writer~Writer} writer\n * @returns {module:engine/model/element~Element}\n */\nexport function cropTableToDimensions( sourceTable, cropDimensions, writer ) {\n\tconst { startRow, startColumn, endRow, endColumn } = cropDimensions;\n\n\t// Create empty table with empty rows equal to crop height.\n\tconst croppedTable = writer.createElement( 'table' );\n\tconst cropHeight = endRow - startRow + 1;\n\n\tfor ( let i = 0; i < cropHeight; i++ ) {\n\t\twriter.insertElement( 'tableRow', croppedTable, 'end' );\n\t}\n\n\tconst tableMap = [ ...new TableWalker( sourceTable, { startRow, endRow, startColumn, endColumn, includeAllSlots: true } ) ];\n\n\t// Iterate over source table slots (including empty - spanned - ones).\n\tfor ( const { row: sourceRow, column: sourceColumn, cell: tableCell, isAnchor, cellAnchorRow, cellAnchorColumn } of tableMap ) {\n\t\t// Row index in cropped table.\n\t\tconst rowInCroppedTable = sourceRow - startRow;\n\t\tconst row = croppedTable.getChild( rowInCroppedTable );\n\n\t\t// For empty slots: fill the gap with empty table cell.\n\t\tif ( !isAnchor ) {\n\t\t\t// But fill the gap only if the spanning cell is anchored outside cropped area.\n\t\t\t// In the table from method jsdoc those cells are: \"c\" & \"f\".\n\t\t\tif ( cellAnchorRow < startRow || cellAnchorColumn < startColumn ) {\n\t\t\t\tcreateEmptyTableCell( writer, writer.createPositionAt( row, 'end' ) );\n\t\t\t}\n\t\t}\n\t\t// Otherwise clone the cell with all children and trim if it exceeds cropped area.\n\t\telse {\n\t\t\tconst tableCellCopy = writer.cloneElement( tableCell );\n\n\t\t\twriter.append( tableCellCopy, row );\n\n\t\t\t// Trim table if it exceeds cropped area.\n\t\t\t// In the table from method jsdoc those cells are: \"g\" & \"m\".\n\t\t\ttrimTableCellIfNeeded( tableCellCopy, sourceRow, sourceColumn, endRow, endColumn, writer );\n\t\t}\n\t}\n\n\t// Adjust heading rows & columns in cropped table if crop selection includes headings parts.\n\taddHeadingsToCroppedTable( croppedTable, sourceTable, startRow, startColumn, writer );\n\n\treturn croppedTable;\n}\n\n/**\n * Returns slot info of cells that starts above and overlaps a given row.\n *\n * In a table below, passing `overlapRow = 3`\n *\n *\t\t   ┌───┬───┬───┬───┬───┐\n *\t\t0  │ a │ b │ c │ d │ e │\n *\t\t   │   ├───┼───┼───┼───┤\n *\t\t1  │   │ f │ g │ h │ i │\n *\t\t   ├───┤   ├───┼───┤   │\n *\t\t2  │ j │   │ k │ l │   │\n *\t\t   │   │   │   ├───┼───┤\n *\t\t3  │   │   │   │ m │ n │  <- overlap row to check\n *\t\t   ├───┼───┤   │   ├───│\n *\t\t4  │ o │ p │   │   │ q │\n *\t\t   └───┴───┴───┴───┴───┘\n *\n * will return slot info for cells: \"j\", \"f\", \"k\".\n *\n * @param {module:engine/model/element~Element} table The table to check.\n * @param {Number} overlapRow The index of the row to check.\n * @param {Number} [startRow=0] A row to start analysis. Use it when it is known that the cells above that row will not overlap.\n * @returns {Array.<module:table/tablewalker~TableSlot>}\n */\nexport function getVerticallyOverlappingCells( table, overlapRow, startRow = 0 ) {\n\tconst cells = [];\n\n\tconst tableWalker = new TableWalker( table, { startRow, endRow: overlapRow - 1 } );\n\n\tfor ( const slotInfo of tableWalker ) {\n\t\tconst { row, cellHeight } = slotInfo;\n\t\tconst cellEndRow = row + cellHeight - 1;\n\n\t\tif ( row < overlapRow && overlapRow <= cellEndRow ) {\n\t\t\tcells.push( slotInfo );\n\t\t}\n\t}\n\n\treturn cells;\n}\n\n/**\n * Splits the table cell horizontally.\n *\n * @param {module:engine/model/element~Element} tableCell\n * @param {Number} splitRow\n * @param {module:engine/model/writer~Writer} writer\n * @returns {module:engine/model/element~Element} Created table cell.\n */\nexport function splitHorizontally( tableCell, splitRow, writer ) {\n\tconst tableRow = tableCell.parent;\n\tconst table = tableRow.parent;\n\tconst rowIndex = tableRow.index;\n\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) );\n\tconst newRowspan = splitRow - rowIndex;\n\n\tconst newCellAttributes = {};\n\tconst newCellRowSpan = rowspan - newRowspan;\n\n\tif ( newCellRowSpan > 1 ) {\n\t\tnewCellAttributes.rowspan = newCellRowSpan;\n\t}\n\n\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) || 1 );\n\n\tif ( colspan > 1 ) {\n\t\tnewCellAttributes.colspan = colspan;\n\t}\n\n\tconst startRow = rowIndex;\n\tconst endRow = startRow + newRowspan;\n\tconst tableMap = [ ...new TableWalker( table, { startRow, endRow, includeAllSlots: true } ) ];\n\n\tlet newCell = null;\n\tlet columnIndex;\n\n\tfor ( const tableSlot of tableMap ) {\n\t\tconst { row, column, cell } = tableSlot;\n\n\t\tif ( cell === tableCell && columnIndex === undefined ) {\n\t\t\tcolumnIndex = column;\n\t\t}\n\n\t\tif ( columnIndex !== undefined && columnIndex === column && row === endRow ) {\n\t\t\tnewCell = createEmptyTableCell( writer, tableSlot.getPositionBefore(), newCellAttributes );\n\t\t}\n\t}\n\n\t// Update the rowspan attribute after updating table.\n\tupdateNumericAttribute( 'rowspan', newRowspan, tableCell, writer );\n\n\treturn newCell;\n}\n\n/**\n * Returns slot info of cells that starts before and overlaps a given column.\n *\n * In a table below, passing `overlapColumn = 3`\n *\n *\t\t  0   1   2   3   4\n *\t\t┌───────┬───────┬───┐\n *\t\t│ a     │ b     │ c │\n *\t\t│───┬───┴───────┼───┤\n *\t\t│ d │ e         │ f │\n *\t\t├───┼───┬───────┴───┤\n *\t\t│ g │ h │ i         │\n *\t\t├───┼───┼───┬───────┤\n *\t\t│ j │ k │ l │ m     │\n *\t\t├───┼───┴───┼───┬───┤\n *\t\t│ n │ o     │ p │ q │\n *\t\t└───┴───────┴───┴───┘\n *\t\t              ^\n *\t\t              Overlap column to check\n *\n * will return slot info for cells: \"b\", \"e\", \"i\".\n *\n * @param {module:engine/model/element~Element} table The table to check.\n * @param {Number} overlapColumn The index of the column to check.\n * @returns {Array.<module:table/tablewalker~TableSlot>}\n */\nexport function getHorizontallyOverlappingCells( table, overlapColumn ) {\n\tconst cellsToSplit = [];\n\n\tconst tableWalker = new TableWalker( table );\n\n\tfor ( const slotInfo of tableWalker ) {\n\t\tconst { column, cellWidth } = slotInfo;\n\t\tconst cellEndColumn = column + cellWidth - 1;\n\n\t\tif ( column < overlapColumn && overlapColumn <= cellEndColumn ) {\n\t\t\tcellsToSplit.push( slotInfo );\n\t\t}\n\t}\n\n\treturn cellsToSplit;\n}\n\n/**\n * Splits the table cell vertically.\n *\n * @param {module:engine/model/element~Element} tableCell\n * @param {Number} columnIndex The table cell column index.\n * @param {Number} splitColumn The index of column to split cell on.\n * @param {module:engine/model/writer~Writer} writer\n * @returns {module:engine/model/element~Element} Created table cell.\n */\nexport function splitVertically( tableCell, columnIndex, splitColumn, writer ) {\n\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) );\n\tconst newColspan = splitColumn - columnIndex;\n\n\tconst newCellAttributes = {};\n\tconst newCellColSpan = colspan - newColspan;\n\n\tif ( newCellColSpan > 1 ) {\n\t\tnewCellAttributes.colspan = newCellColSpan;\n\t}\n\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) || 1 );\n\n\tif ( rowspan > 1 ) {\n\t\tnewCellAttributes.rowspan = rowspan;\n\t}\n\n\tconst newCell = createEmptyTableCell( writer, writer.createPositionAfter( tableCell ), newCellAttributes );\n\n\t// Update the colspan attribute after updating table.\n\tupdateNumericAttribute( 'colspan', newColspan, tableCell, writer );\n\n\treturn newCell;\n}\n\n/**\n * Adjusts table cell dimensions to not exceed limit row and column.\n *\n * If table cell width (or height) covers a column (or row) that is after a limit column (or row)\n * this method will trim \"colspan\" (or \"rowspan\") attribute so the table cell will fit in a defined limits.\n *\n * @param {module:engine/model/element~Element} tableCell\n * @param {Number} cellRow\n * @param {Number} cellColumn\n * @param {Number} limitRow\n * @param {Number} limitColumn\n * @param {module:engine/model/writer~Writer} writer\n */\nexport function trimTableCellIfNeeded( tableCell, cellRow, cellColumn, limitRow, limitColumn, writer ) {\n\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) || 1 );\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) || 1 );\n\n\tconst endColumn = cellColumn + colspan - 1;\n\n\tif ( endColumn > limitColumn ) {\n\t\tconst trimmedSpan = limitColumn - cellColumn + 1;\n\n\t\tupdateNumericAttribute( 'colspan', trimmedSpan, tableCell, writer, 1 );\n\t}\n\n\tconst endRow = cellRow + rowspan - 1;\n\n\tif ( endRow > limitRow ) {\n\t\tconst trimmedSpan = limitRow - cellRow + 1;\n\n\t\tupdateNumericAttribute( 'rowspan', trimmedSpan, tableCell, writer, 1 );\n\t}\n}\n\n// Sets proper heading attributes to a cropped table.\nfunction addHeadingsToCroppedTable( croppedTable, sourceTable, startRow, startColumn, writer ) {\n\tconst headingRows = parseInt( sourceTable.getAttribute( 'headingRows' ) || 0 );\n\n\tif ( headingRows > 0 ) {\n\t\tconst headingRowsInCrop = headingRows - startRow;\n\t\tupdateNumericAttribute( 'headingRows', headingRowsInCrop, croppedTable, writer, 0 );\n\t}\n\n\tconst headingColumns = parseInt( sourceTable.getAttribute( 'headingColumns' ) || 0 );\n\n\tif ( headingColumns > 0 ) {\n\t\tconst headingColumnsInCrop = headingColumns - startColumn;\n\t\tupdateNumericAttribute( 'headingColumns', headingColumnsInCrop, croppedTable, writer, 0 );\n\t}\n}\n\n/**\n * Removes columns that have no cells anchored.\n *\n * In table below:\n *\n *     +----+----+----+----+----+----+----+\n *     | 00 | 01      | 03 | 04      | 06 |\n *     +----+----+----+----+         +----+\n *     | 10 | 11      | 13 |         | 16 |\n *     +----+----+----+----+----+----+----+\n *     | 20 | 21      | 23 | 24      | 26 |\n *     +----+----+----+----+----+----+----+\n *                  ^--- empty ---^\n *\n * Will remove columns 2 and 5.\n *\n * **Note:** This is a low-level helper method for clearing invalid model state when doing table modifications.\n * To remove a column from a table use {@link module:table/tableutils~TableUtils#removeColumns `TableUtils.removeColumns()`}.\n *\n * @protected\n * @param {module:engine/model/element~Element} table\n * @param {module:table/tableutils~TableUtils} tableUtils\n * @returns {Boolean} True if removed some columns.\n */\nexport function removeEmptyColumns( table, tableUtils ) {\n\tconst width = tableUtils.getColumns( table );\n\tconst columnsMap = new Array( width ).fill( 0 );\n\n\tfor ( const { column } of new TableWalker( table ) ) {\n\t\tcolumnsMap[ column ]++;\n\t}\n\n\tconst emptyColumns = columnsMap.reduce( ( result, cellsCount, column ) => {\n\t\treturn cellsCount ? result : [ ...result, column ];\n\t}, [] );\n\n\tif ( emptyColumns.length > 0 ) {\n\t\t// Remove only last empty column because it will recurrently trigger removing empty rows.\n\t\tconst emptyColumn = emptyColumns[ emptyColumns.length - 1 ];\n\n\t\t// @if CK_DEBUG_TABLE // console.log( `Removing empty column: ${ emptyColumn }.` );\n\t\ttableUtils.removeColumns( table, { at: emptyColumn } );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Removes rows that have no cells anchored.\n *\n * In table below:\n *\n *     +----+----+----+\n *     | 00 | 01 | 02 |\n *     +----+----+----+\n *     | 10 | 11 | 12 |\n *     +    +    +    +\n *     |    |    |    | <-- empty\n *     +----+----+----+\n *     | 30 | 31 | 32 |\n *     +----+----+----+\n *     | 40      | 42 |\n *     +         +    +\n *     |         |    | <-- empty\n *     +----+----+----+\n *     | 60 | 61 | 62 |\n *     +----+----+----+\n *\n * Will remove rows 2 and 5.\n *\n * **Note:** This is a low-level helper method for clearing invalid model state when doing table modifications.\n * To remove a row from a table use {@link module:table/tableutils~TableUtils#removeRows `TableUtils.removeRows()`}.\n *\n * @protected\n * @param {module:engine/model/element~Element} table\n * @param {module:table/tableutils~TableUtils} tableUtils\n * @returns {Boolean} True if removed some rows.\n */\nexport function removeEmptyRows( table, tableUtils ) {\n\tconst emptyRows = [];\n\tconst tableRowCount = tableUtils.getRows( table );\n\n\tfor ( let rowIndex = 0; rowIndex < tableRowCount; rowIndex++ ) {\n\t\tconst tableRow = table.getChild( rowIndex );\n\n\t\tif ( tableRow.isEmpty ) {\n\t\t\temptyRows.push( rowIndex );\n\t\t}\n\t}\n\n\tif ( emptyRows.length > 0 ) {\n\t\t// Remove only last empty row because it will recurrently trigger removing empty columns.\n\t\tconst emptyRow = emptyRows[ emptyRows.length - 1 ];\n\n\t\t// @if CK_DEBUG_TABLE // console.log( `Removing empty row: ${ emptyRow }.` );\n\t\ttableUtils.removeRows( table, { at: emptyRow } );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Removes rows and columns that have no cells anchored.\n *\n * In table below:\n *\n *     +----+----+----+----+\n *     | 00      | 02      |\n *     +----+----+         +\n *     | 10      |         |\n *     +----+----+----+----+\n *     | 20      | 22 | 23 |\n *     +         +    +    +\n *     |         |    |    | <-- empty row\n *     +----+----+----+----+\n *             ^--- empty column\n *\n * Will remove row 3 and column 1.\n *\n * **Note:** This is a low-level helper method for clearing invalid model state when doing table modifications.\n * To remove a rows from a table use {@link module:table/tableutils~TableUtils#removeRows `TableUtils.removeRows()`} and\n * {@link module:table/tableutils~TableUtils#removeColumns `TableUtils.removeColumns()`} to remove a column.\n *\n * @protected\n * @param {module:engine/model/element~Element} table\n * @param {module:table/tableutils~TableUtils} tableUtils\n */\nexport function removeEmptyRowsColumns( table, tableUtils ) {\n\tconst removedColumns = removeEmptyColumns( table, tableUtils );\n\n\t// If there was some columns removed then cleaning empty rows was already triggered.\n\tif ( !removedColumns ) {\n\t\tremoveEmptyRows( table, tableUtils );\n\t}\n}\n\n/**\n * Returns adjusted last row index if selection covers part of a row with empty slots (spanned by other cells).\n * The `dimensions.lastRow` is equal to last row index but selection might be bigger.\n *\n * This happens *only* on rectangular selection so we analyze a case like this:\n *\n *        +---+---+---+---+\n *      0 | a | b | c | d |\n *        +   +   +---+---+\n *      1 |   | e | f | g |\n *        +   +---+   +---+\n *      2 |   | h |   | i | <- last row, each cell has rowspan = 2,\n *        +   +   +   +   +    so we need to return 3, not 2\n *      3 |   |   |   |   |\n *        +---+---+---+---+\n *\n * @param {module:engine/model/element~Element} table\n * @param {Object} dimensions\n * @param {Number} dimensions.firstRow\n * @param {Number} dimensions.firstColumn\n * @param {Number} dimensions.lastRow\n * @param {Number} dimensions.lastColumn\n * @returns {Number} Adjusted last row index.\n */\nexport function adjustLastRowIndex( table, dimensions ) {\n\tconst lastRowMap = Array.from( new TableWalker( table, {\n\t\tstartColumn: dimensions.firstColumn,\n\t\tendColumn: dimensions.lastColumn,\n\t\trow: dimensions.lastRow\n\t} ) );\n\n\tconst everyCellHasSingleRowspan = lastRowMap.every( ( { cellHeight } ) => cellHeight === 1 );\n\n\t// It is a \"flat\" row, so the last row index is OK.\n\tif ( everyCellHasSingleRowspan ) {\n\t\treturn dimensions.lastRow;\n\t}\n\n\t// Otherwise get any cell's rowspan and adjust the last row index.\n\tconst rowspanAdjustment = lastRowMap[ 0 ].cellHeight - 1;\n\treturn dimensions.lastRow + rowspanAdjustment;\n}\n\n/**\n * Returns adjusted last column index if selection covers part of a column with empty slots (spanned by other cells).\n * The `dimensions.lastColumn` is equal to last column index but selection might be bigger.\n *\n * This happens *only* on rectangular selection so we analyze a case like this:\n *\n *       0   1   2   3\n *     +---+---+---+---+\n *     | a             |\n *     +---+---+---+---+\n *     | b | c | d     |\n *     +---+---+---+---+\n *     | e     | f     |\n *     +---+---+---+---+\n *     | g | h         |\n *     +---+---+---+---+\n *               ^\n *              last column, each cell has colspan = 2, so we need to return 3, not 2\n *\n * @param {module:engine/model/element~Element} table\n * @param {Object} dimensions\n * @param {Number} dimensions.firstRow\n * @param {Number} dimensions.firstColumn\n * @param {Number} dimensions.lastRow\n * @param {Number} dimensions.lastColumn\n * @returns {Number} Adjusted last column index.\n */\nexport function adjustLastColumnIndex( table, dimensions ) {\n\tconst lastColumnMap = Array.from( new TableWalker( table, {\n\t\tstartRow: dimensions.firstRow,\n\t\tendRow: dimensions.lastRow,\n\t\tcolumn: dimensions.lastColumn\n\t} ) );\n\n\tconst everyCellHasSingleColspan = lastColumnMap.every( ( { cellWidth } ) => cellWidth === 1 );\n\n\t// It is a \"flat\" column, so the last column index is OK.\n\tif ( everyCellHasSingleColspan ) {\n\t\treturn dimensions.lastColumn;\n\t}\n\n\t// Otherwise get any cell's colspan and adjust the last column index.\n\tconst colspanAdjustment = lastColumnMap[ 0 ].cellWidth - 1;\n\treturn dimensions.lastColumn + colspanAdjustment;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/mergecellcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport TableWalker from '../tablewalker';\nimport { isHeadingColumnCell } from '../utils/common';\nimport { removeEmptyRowsColumns } from '../utils/structure';\n\n/**\n * The merge cell command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'mergeTableCellRight'`, `'mergeTableCellLeft'`,\n * `'mergeTableCellUp'` and `'mergeTableCellDown'` editor commands.\n *\n * To merge a table cell at the current selection with another cell, execute the command corresponding with the preferred direction.\n *\n * For example, to merge with a cell to the right:\n *\n *\t\teditor.execute( 'mergeTableCellRight' );\n *\n * **Note**: If a table cell has a different [`rowspan`](https://www.w3.org/TR/html50/tabular-data.html#attr-tdth-rowspan)\n * (for `'mergeTableCellRight'` and `'mergeTableCellLeft'`) or [`colspan`](https://www.w3.org/TR/html50/tabular-data.html#attr-tdth-colspan)\n * (for `'mergeTableCellUp'` and `'mergeTableCellDown'`), the command will be disabled.\n *\n * @extends module:core/command~Command\n */\nexport default class MergeCellCommand extends Command {\n\t/**\n\t * Creates a new `MergeCellCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor on which this command will be used.\n\t * @param {Object} options\n\t * @param {String} options.direction Indicates which cell to merge with the currently selected one.\n\t * Possible values are: `'left'`, `'right'`, `'up'` and `'down'`.\n\t */\n\tconstructor( editor, options ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The direction that indicates which cell will be merged with the currently selected one.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String} #direction\n\t\t */\n\t\tthis.direction = options.direction;\n\n\t\t/**\n\t\t * Whether the merge is horizontal (left/right) or vertical (up/down).\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} #isHorizontal\n\t\t */\n\t\tthis.isHorizontal = this.direction == 'right' || this.direction == 'left';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst cellToMerge = this._getMergeableCell();\n\n\t\tthis.value = cellToMerge;\n\t\tthis.isEnabled = !!cellToMerge;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Depending on the command's {@link #direction} value, it will merge the cell that is to the `'left'`, `'right'`, `'up'` or `'down'`.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCell = tableUtils.getTableCellsContainingSelection( doc.selection )[ 0 ];\n\n\t\tconst cellToMerge = this.value;\n\t\tconst direction = this.direction;\n\n\t\tmodel.change( writer => {\n\t\t\tconst isMergeNext = direction == 'right' || direction == 'down';\n\n\t\t\t// The merge mechanism is always the same so sort cells to be merged.\n\t\t\tconst cellToExpand = isMergeNext ? tableCell : cellToMerge;\n\t\t\tconst cellToRemove = isMergeNext ? cellToMerge : tableCell;\n\n\t\t\t// Cache the parent of cell to remove for later check.\n\t\t\tconst removedTableCellRow = cellToRemove.parent;\n\n\t\t\tmergeTableCells( cellToRemove, cellToExpand, writer );\n\n\t\t\tconst spanAttribute = this.isHorizontal ? 'colspan' : 'rowspan';\n\t\t\tconst cellSpan = parseInt( tableCell.getAttribute( spanAttribute ) || 1 );\n\t\t\tconst cellToMergeSpan = parseInt( cellToMerge.getAttribute( spanAttribute ) || 1 );\n\n\t\t\t// Update table cell span attribute and merge set selection on merged contents.\n\t\t\twriter.setAttribute( spanAttribute, cellSpan + cellToMergeSpan, cellToExpand );\n\t\t\twriter.setSelection( writer.createRangeIn( cellToExpand ) );\n\n\t\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\t\tconst table = removedTableCellRow.findAncestor( 'table' );\n\n\t\t\t// Remove empty rows and columns after merging.\n\t\t\tremoveEmptyRowsColumns( table, tableUtils );\n\t\t} );\n\t}\n\n\t/**\n\t * Returns a cell that can be merged with the current cell depending on the command's direction.\n\t *\n\t * @returns {module:engine/model/element~Element|undefined}\n\t * @private\n\t */\n\t_getMergeableCell() {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCell = tableUtils.getTableCellsContainingSelection( doc.selection )[ 0 ];\n\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// First get the cell on proper direction.\n\t\tconst cellToMerge = this.isHorizontal ?\n\t\t\tgetHorizontalCell( tableCell, this.direction, tableUtils ) :\n\t\t\tgetVerticalCell( tableCell, this.direction, tableUtils );\n\n\t\tif ( !cellToMerge ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If found check if the span perpendicular to merge direction is equal on both cells.\n\t\tconst spanAttribute = this.isHorizontal ? 'rowspan' : 'colspan';\n\t\tconst span = parseInt( tableCell.getAttribute( spanAttribute ) || 1 );\n\n\t\tconst cellToMergeSpan = parseInt( cellToMerge.getAttribute( spanAttribute ) || 1 );\n\n\t\tif ( cellToMergeSpan === span ) {\n\t\t\treturn cellToMerge;\n\t\t}\n\t}\n}\n\n// Returns the cell that can be merged horizontally.\n//\n// @param {module:engine/model/element~Element} tableCell\n// @param {String} direction\n// @param {module:table/tableutils~TableUtils} tableUtils\n// @returns {module:engine/model/node~Node|null}\nfunction getHorizontalCell( tableCell, direction, tableUtils ) {\n\tconst tableRow = tableCell.parent;\n\tconst table = tableRow.parent;\n\tconst horizontalCell = direction == 'right' ? tableCell.nextSibling : tableCell.previousSibling;\n\tconst hasHeadingColumns = ( table.getAttribute( 'headingColumns' ) || 0 ) > 0;\n\n\tif ( !horizontalCell ) {\n\t\treturn;\n\t}\n\n\t// Sort cells:\n\tconst cellOnLeft = direction == 'right' ? tableCell : horizontalCell;\n\tconst cellOnRight = direction == 'right' ? horizontalCell : tableCell;\n\n\t// Get their column indexes:\n\tconst { column: leftCellColumn } = tableUtils.getCellLocation( cellOnLeft );\n\tconst { column: rightCellColumn } = tableUtils.getCellLocation( cellOnRight );\n\n\tconst leftCellSpan = parseInt( cellOnLeft.getAttribute( 'colspan' ) || 1 );\n\n\tconst isCellOnLeftInHeadingColumn = isHeadingColumnCell( tableUtils, cellOnLeft, table );\n\tconst isCellOnRightInHeadingColumn = isHeadingColumnCell( tableUtils, cellOnRight, table );\n\n\t// We cannot merge heading columns cells with regular cells.\n\tif ( hasHeadingColumns && isCellOnLeftInHeadingColumn != isCellOnRightInHeadingColumn ) {\n\t\treturn;\n\t}\n\n\t// The cell on the right must have index that is distant to the cell on the left by the left cell's width (colspan).\n\tconst cellsAreTouching = leftCellColumn + leftCellSpan === rightCellColumn;\n\n\t// If the right cell's column index is different it means that there are rowspanned cells between them.\n\treturn cellsAreTouching ? horizontalCell : undefined;\n}\n\n// Returns the cell that can be merged vertically.\n//\n// @param {module:engine/model/element~Element} tableCell\n// @param {String} direction\n// @param {module:table/tableutils~TableUtils} tableUtils\n// @returns {module:engine/model/node~Node|null}\nfunction getVerticalCell( tableCell, direction, tableUtils ) {\n\tconst tableRow = tableCell.parent;\n\tconst table = tableRow.parent;\n\n\tconst rowIndex = table.getChildIndex( tableRow );\n\n\t// Don't search for mergeable cell if direction points out of the table.\n\tif ( ( direction == 'down' && rowIndex === tableUtils.getRows( table ) - 1 ) || ( direction == 'up' && rowIndex === 0 ) ) {\n\t\treturn;\n\t}\n\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) || 1 );\n\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\n\tconst isMergeWithBodyCell = direction == 'down' && ( rowIndex + rowspan ) === headingRows;\n\tconst isMergeWithHeadCell = direction == 'up' && rowIndex === headingRows;\n\n\t// Don't search for mergeable cell if direction points out of the current table section.\n\tif ( headingRows && ( isMergeWithBodyCell || isMergeWithHeadCell ) ) {\n\t\treturn;\n\t}\n\n\tconst currentCellRowSpan = parseInt( tableCell.getAttribute( 'rowspan' ) || 1 );\n\tconst rowOfCellToMerge = direction == 'down' ? rowIndex + currentCellRowSpan : rowIndex;\n\n\tconst tableMap = [ ...new TableWalker( table, { endRow: rowOfCellToMerge } ) ];\n\n\tconst currentCellData = tableMap.find( value => value.cell === tableCell );\n\tconst mergeColumn = currentCellData.column;\n\n\tconst cellToMergeData = tableMap.find( ( { row, cellHeight, column } ) => {\n\t\tif ( column !== mergeColumn ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( direction == 'down' ) {\n\t\t\t// If merging a cell below the mergeRow is already calculated.\n\t\t\treturn row === rowOfCellToMerge;\n\t\t} else {\n\t\t\t// If merging a cell above calculate if it spans to mergeRow.\n\t\t\treturn rowOfCellToMerge === row + cellHeight;\n\t\t}\n\t} );\n\n\treturn cellToMergeData && cellToMergeData.cell;\n}\n\n// Merges two table cells. It will ensure that after merging cells with an empty paragraph, the resulting table cell will only have one\n// paragraph. If one of the merged table cells is empty, the merged table cell will have the contents of the non-empty table cell.\n// If both are empty, the merged table cell will have only one empty paragraph.\n//\n// @param {module:engine/model/element~Element} cellToRemove\n// @param {module:engine/model/element~Element} cellToExpand\n// @param {module:engine/model/writer~Writer} writer\nfunction mergeTableCells( cellToRemove, cellToExpand, writer ) {\n\tif ( !isEmpty( cellToRemove ) ) {\n\t\tif ( isEmpty( cellToExpand ) ) {\n\t\t\twriter.remove( writer.createRangeIn( cellToExpand ) );\n\t\t}\n\n\t\twriter.move( writer.createRangeIn( cellToRemove ), writer.createPositionAt( cellToExpand, 'end' ) );\n\t}\n\n\t// Remove merged table cell.\n\twriter.remove( cellToRemove );\n}\n\n// Checks if the passed table cell contains an empty paragraph.\n//\n// @param {module:engine/model/element~Element} tableCell\n// @returns {Boolean}\nfunction isEmpty( tableCell ) {\n\treturn tableCell.childCount == 1 && tableCell.getChild( 0 ).is( 'element', 'paragraph' ) && tableCell.getChild( 0 ).isEmpty;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/removerowcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The remove row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'removeTableRow'` editor command.\n *\n * To remove the row containing the selected cell, execute the command:\n *\n *\t\teditor.execute( 'removeTableRow' );\n *\n * @extends module:core/command~Command\n */\nexport default class RemoveRowCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\t\tconst firstCell = selectedCells[ 0 ];\n\n\t\tif ( firstCell ) {\n\t\t\tconst table = firstCell.findAncestor( 'table' );\n\t\t\tconst tableRowCount = this.editor.plugins.get( 'TableUtils' ).getRows( table );\n\t\t\tconst lastRowIndex = tableRowCount - 1;\n\n\t\t\tconst selectedRowIndexes = tableUtils.getRowIndexes( selectedCells );\n\n\t\t\tconst areAllRowsSelected = selectedRowIndexes.first === 0 && selectedRowIndexes.last === lastRowIndex;\n\n\t\t\t// Disallow selecting whole table -> delete whole table should be used instead.\n\t\t\tthis.isEnabled = !areAllRowsSelected;\n\t\t} else {\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\n\t\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst removedRowIndexes = tableUtils.getRowIndexes( referenceCells );\n\n\t\tconst firstCell = referenceCells[ 0 ];\n\t\tconst table = firstCell.findAncestor( 'table' );\n\n\t\tconst columnIndexToFocus = tableUtils.getCellLocation( firstCell ).column;\n\n\t\tmodel.change( writer => {\n\t\t\tconst rowsToRemove = removedRowIndexes.last - removedRowIndexes.first + 1;\n\n\t\t\ttableUtils.removeRows( table, {\n\t\t\t\tat: removedRowIndexes.first,\n\t\t\t\trows: rowsToRemove\n\t\t\t} );\n\n\t\t\tconst cellToFocus = getCellToFocus( table, removedRowIndexes.first, columnIndexToFocus, tableUtils.getRows( table ) );\n\n\t\t\twriter.setSelection( writer.createPositionAt( cellToFocus, 0 ) );\n\t\t} );\n\t}\n}\n\n// Returns a cell that should be focused before removing the row, belonging to the same column as the currently focused cell.\n// * If the row was not the last one, the cell to focus will be in the row that followed it (before removal).\n// * If the row was the last one, the cell to focus will be in the row that preceded it (before removal).\nfunction getCellToFocus( table, removedRowIndex, columnToFocus, tableRowCount ) {\n\t// Don't go beyond last row's index.\n\tconst row = table.getChild( Math.min( removedRowIndex, tableRowCount - 1 ) );\n\n\t// Default to first table cell.\n\tlet cellToFocus = row.getChild( 0 );\n\tlet column = 0;\n\n\tfor ( const tableCell of row.getChildren() ) {\n\t\tif ( column > columnToFocus ) {\n\t\t\treturn cellToFocus;\n\t\t}\n\n\t\tcellToFocus = tableCell;\n\t\tcolumn += parseInt( tableCell.getAttribute( 'colspan' ) || 1 );\n\t}\n\n\treturn cellToFocus;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/removecolumncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport TableWalker from '../tablewalker';\n\n/**\n * The remove column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'removeTableColumn'` editor command.\n *\n * To remove the column containing the selected cell, execute the command:\n *\n *\t\teditor.execute( 'removeTableColumn' );\n *\n * @extends module:core/command~Command\n */\nexport default class RemoveColumnCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\t\tconst firstCell = selectedCells[ 0 ];\n\n\t\tif ( firstCell ) {\n\t\t\tconst table = firstCell.findAncestor( 'table' );\n\t\t\tconst tableColumnCount = tableUtils.getColumns( table );\n\n\t\t\tconst { first, last } = tableUtils.getColumnIndexes( selectedCells );\n\n\t\t\tthis.isEnabled = last - first < ( tableColumnCount - 1 );\n\t\t} else {\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst [ firstCell, lastCell ] = getBoundaryCells( this.editor.model.document.selection, tableUtils );\n\t\tconst table = firstCell.parent.parent;\n\n\t\t// Cache the table before removing or updating colspans.\n\t\tconst tableMap = [ ...new TableWalker( table ) ];\n\n\t\t// Store column indexes of removed columns.\n\t\tconst removedColumnIndexes = {\n\t\t\tfirst: tableMap.find( value => value.cell === firstCell ).column,\n\t\t\tlast: tableMap.find( value => value.cell === lastCell ).column\n\t\t};\n\n\t\tconst cellToFocus = getCellToFocus( tableMap, firstCell, lastCell, removedColumnIndexes );\n\n\t\tthis.editor.model.change( writer => {\n\t\t\tconst columnsToRemove = removedColumnIndexes.last - removedColumnIndexes.first + 1;\n\n\t\t\tthis.editor.plugins.get( 'TableUtils' ).removeColumns( table, {\n\t\t\t\tat: removedColumnIndexes.first,\n\t\t\t\tcolumns: columnsToRemove\n\t\t\t} );\n\n\t\t\twriter.setSelection( writer.createPositionAt( cellToFocus, 0 ) );\n\t\t} );\n\t}\n}\n\n// Returns a proper table cell to focus after removing a column.\n// - selection is on last table cell it will return previous cell.\nfunction getCellToFocus( tableMap, firstCell, lastCell, removedColumnIndexes ) {\n\tconst colspan = parseInt( lastCell.getAttribute( 'colspan' ) || 1 );\n\n\t// If the table cell is spanned over 2+ columns - it will be truncated so the selection should\n\t// stay in that cell.\n\tif ( colspan > 1 ) {\n\t\treturn lastCell;\n\t}\n\t// Normally, look for the cell in the same row that precedes the first cell to put selection there (\"column on the left\").\n\t// If the deleted column is the first column of the table, there will be no predecessor: use the cell\n\t// from the column that follows then (also in the same row).\n\telse if ( firstCell.previousSibling || lastCell.nextSibling ) {\n\t\treturn lastCell.nextSibling || firstCell.previousSibling;\n\t}\n\t// It can happen that table cells have no siblings in a row, for instance, when there are row spans\n\t// in the table (in the previous row). Then just look for the closest cell that is in a column\n\t// that will not be removed to put the selection there.\n\telse {\n\t\t// Look for any cell in a column that precedes the first removed column.\n\t\tif ( removedColumnIndexes.first ) {\n\t\t\treturn tableMap.reverse().find( ( { column } ) => {\n\t\t\t\treturn column < removedColumnIndexes.first;\n\t\t\t} ).cell;\n\t\t}\n\t\t// If the first removed column is the first column of the table, then\n\t\t// look for any cell that is in a column that follows the last removed column.\n\t\telse {\n\t\t\treturn tableMap.reverse().find( ( { column } ) => {\n\t\t\t\treturn column > removedColumnIndexes.last;\n\t\t\t} ).cell;\n\t\t}\n\t}\n}\n\n// Returns helper object returning the first and the last cell contained in given selection, based on DOM order.\nfunction getBoundaryCells( selection, tableUtils ) {\n\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( selection );\n\tconst firstCell = referenceCells[ 0 ];\n\tconst lastCell = referenceCells.pop();\n\n\tconst returnValue = [ firstCell, lastCell ];\n\n\treturn firstCell.isBefore( lastCell ) ? returnValue : returnValue.reverse();\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/setheaderrowcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport { updateNumericAttribute } from '../utils/common';\nimport { getVerticallyOverlappingCells, splitHorizontally } from '../utils/structure';\n\n/**\n * The header row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'setTableColumnHeader'` editor command.\n *\n * You can make the row containing the selected cell a [header](https://www.w3.org/TR/html50/tabular-data.html#the-th-element) by executing:\n *\n *\t\teditor.execute( 'setTableRowHeader' );\n *\n * **Note:** All preceding rows will also become headers. If the current row is already a header, executing this command\n * will make it a regular row back again (including the following rows).\n *\n * @extends module:core/command~Command\n */\nexport default class SetHeaderRowCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst isInTable = selectedCells.length > 0;\n\n\t\tthis.isEnabled = isInTable;\n\n\t\t/**\n\t\t * Flag indicating whether the command is active. The command is active when the\n\t\t * {@link module:engine/model/selection~Selection} is in a header row.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #value\n\t\t */\n\t\tthis.value = isInTable && selectedCells.every( cell => this._isInHeading( cell, cell.parent.parent ) );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is in a non-header row, the command will set the `headingRows` table attribute to cover that row.\n\t *\n\t * When the selection is already in a header row, it will set `headingRows` so the heading section will end before that row.\n\t *\n\t * @fires execute\n\t * @param {Object} options\n\t * @param {Boolean} [options.forceValue] If set, the command will set (`true`) or unset (`false`) the header rows according to\n\t * the `forceValue` parameter instead of the current model state.\n\t */\n\texecute( options = {} ) {\n\t\tif ( options.forceValue === this.value ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst table = selectedCells[ 0 ].findAncestor( 'table' );\n\n\t\tconst { first, last } = tableUtils.getRowIndexes( selectedCells );\n\t\tconst headingRowsToSet = this.value ? first : last + 1;\n\t\tconst currentHeadingRows = table.getAttribute( 'headingRows' ) || 0;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( headingRowsToSet ) {\n\t\t\t\t// Changing heading rows requires to check if any of a heading cell is overlapping vertically the table head.\n\t\t\t\t// Any table cell that has a rowspan attribute > 1 will not exceed the table head so we need to fix it in rows below.\n\t\t\t\tconst startRow = headingRowsToSet > currentHeadingRows ? currentHeadingRows : 0;\n\t\t\t\tconst overlappingCells = getVerticallyOverlappingCells( table, headingRowsToSet, startRow );\n\n\t\t\t\tfor ( const { cell } of overlappingCells ) {\n\t\t\t\t\tsplitHorizontally( cell, headingRowsToSet, writer );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tupdateNumericAttribute( 'headingRows', headingRowsToSet, table, writer, 0 );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks if a table cell is in the heading section.\n\t *\n\t * @param {module:engine/model/element~Element} tableCell\n\t * @param {module:engine/model/element~Element} table\n\t * @returns {Boolean}\n\t * @private\n\t */\n\t_isInHeading( tableCell, table ) {\n\t\tconst headingRows = parseInt( table.getAttribute( 'headingRows' ) || 0 );\n\n\t\treturn !!headingRows && tableCell.parent.index < headingRows;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/setheadercolumncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport {\n\tisHeadingColumnCell,\n\tupdateNumericAttribute\n} from '../utils/common';\nimport { getHorizontallyOverlappingCells, splitVertically } from '../utils/structure';\n\n/**\n * The header column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'setTableColumnHeader'` editor command.\n *\n * You can make the column containing the selected cell a [header](https://www.w3.org/TR/html50/tabular-data.html#the-th-element)\n * by executing:\n *\n *\t\teditor.execute( 'setTableColumnHeader' );\n *\n * **Note:** All preceding columns will also become headers. If the current column is already a header, executing this command\n * will make it a regular column back again (including the following columns).\n *\n * @extends module:core/command~Command\n */\nexport default class SetHeaderColumnCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst isInTable = selectedCells.length > 0;\n\n\t\tthis.isEnabled = isInTable;\n\n\t\t/**\n\t\t * Flag indicating whether the command is active. The command is active when the\n\t\t * {@link module:engine/model/selection~Selection} is in a header column.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #value\n\t\t */\n\t\tthis.value = isInTable && selectedCells.every( cell => isHeadingColumnCell( tableUtils, cell ) );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is in a non-header column, the command will set the `headingColumns` table attribute to cover that column.\n\t *\n\t * When the selection is already in a header column, it will set `headingColumns` so the heading section will end before that column.\n\t *\n\t * @fires execute\n\t * @param {Object} [options]\n\t * @param {Boolean} [options.forceValue] If set, the command will set (`true`) or unset (`false`) the header columns according to\n\t * the `forceValue` parameter instead of the current model state.\n\t */\n\texecute( options = {} ) {\n\t\tif ( options.forceValue === this.value ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst table = selectedCells[ 0 ].findAncestor( 'table' );\n\n\t\tconst { first, last } = tableUtils.getColumnIndexes( selectedCells );\n\t\tconst headingColumnsToSet = this.value ? first : last + 1;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( headingColumnsToSet ) {\n\t\t\t\t// Changing heading columns requires to check if any of a heading cell is overlapping horizontally the table head.\n\t\t\t\t// Any table cell that has a colspan attribute > 1 will not exceed the table head so we need to fix it in columns before.\n\t\t\t\tconst overlappingCells = getHorizontallyOverlappingCells( table, headingColumnsToSet );\n\n\t\t\t\tfor ( const { cell, column } of overlappingCells ) {\n\t\t\t\t\tsplitVertically( cell, column, headingColumnsToSet, writer );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tupdateNumericAttribute( 'headingColumns', headingColumnsToSet, table, writer, 0 );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableutils\n */\n\nimport { CKEditorError } from 'ckeditor5/src/utils';\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TableWalker from './tablewalker';\nimport { createEmptyTableCell, updateNumericAttribute } from './utils/common';\nimport { removeEmptyColumns, removeEmptyRows } from './utils/structure';\n\n/**\n * The table utilities plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableUtils';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tthis.decorate( 'insertColumns' );\n\t\tthis.decorate( 'insertRows' );\n\t}\n\n\t/**\n\t * Returns the table cell location as an object with table row and table column indexes.\n\t *\n\t * For instance, in the table below:\n\t *\n\t *\t\t    0   1   2   3\n\t *\t\t  +---+---+---+---+\n\t *\t\t0 | a     | b | c |\n\t *\t\t  +       +   +---+\n\t *\t\t1 |       |   | d |\n\t *\t\t  +---+---+   +---+\n\t *\t\t2 | e     |   | f |\n\t *\t\t  +---+---+---+---+\n\t *\n\t * the method will return:\n\t *\n\t *\t\tconst cellA = table.getNodeByPath( [ 0, 0 ] );\n\t *\t\teditor.plugins.get( 'TableUtils' ).getCellLocation( cellA );\n\t *\t\t// will return { row: 0, column: 0 }\n\t *\n\t *\t\tconst cellD = table.getNodeByPath( [ 1, 0 ] );\n\t *\t\teditor.plugins.get( 'TableUtils' ).getCellLocation( cellD );\n\t *\t\t// will return { row: 1, column: 3 }\n\t *\n\t * @param {module:engine/model/element~Element} tableCell\n\t * @returns {Object} Returns a `{row, column}` object.\n\t */\n\tgetCellLocation( tableCell ) {\n\t\tconst tableRow = tableCell.parent;\n\t\tconst table = tableRow.parent;\n\n\t\tconst rowIndex = table.getChildIndex( tableRow );\n\n\t\tconst tableWalker = new TableWalker( table, { row: rowIndex } );\n\n\t\tfor ( const { cell, row, column } of tableWalker ) {\n\t\t\tif ( cell === tableCell ) {\n\t\t\t\treturn { row, column };\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Creates an empty table with a proper structure. The table needs to be inserted into the model,\n\t * for example, by using the {@link module:engine/model/model~Model#insertContent} function.\n\t *\n\t *\t\tmodel.change( ( writer ) => {\n\t *\t\t\t// Create a table of 2 rows and 7 columns:\n\t *\t\t\tconst table = tableUtils.createTable( writer, { rows: 2, columns: 7 } );\n\t *\n\t *\t\t\t// Insert a table to the model at the best position taking the current selection:\n\t *\t\t\tmodel.insertContent( table );\n\t *\t\t}\n\t *\n\t * @param {module:engine/model/writer~Writer} writer The model writer.\n\t * @param {Object} options\n\t * @param {Number} [options.rows=2] The number of rows to create.\n\t * @param {Number} [options.columns=2] The number of columns to create.\n\t * @param {Number} [options.headingRows=0] The number of heading rows.\n\t * @param {Number} [options.headingColumns=0] The number of heading columns.\n\t * @returns {module:engine/model/element~Element} The created table element.\n\t */\n\tcreateTable( writer, options ) {\n\t\tconst table = writer.createElement( 'table' );\n\n\t\tconst rows = parseInt( options.rows ) || 2;\n\t\tconst columns = parseInt( options.columns ) || 2;\n\n\t\tcreateEmptyRows( writer, table, 0, rows, columns );\n\n\t\tif ( options.headingRows ) {\n\t\t\tupdateNumericAttribute( 'headingRows', Math.min( options.headingRows, rows ), table, writer, 0 );\n\t\t}\n\n\t\tif ( options.headingColumns ) {\n\t\t\tupdateNumericAttribute( 'headingColumns', Math.min( options.headingColumns, columns ), table, writer, 0 );\n\t\t}\n\n\t\treturn table;\n\t}\n\n\t/**\n\t * Inserts rows into a table.\n\t *\n\t *\t\teditor.plugins.get( 'TableUtils' ).insertRows( table, { at: 1, rows: 2 } );\n\t *\n\t * Assuming the table on the left, the above code will transform it to the table on the right:\n\t *\n\t *\t\trow index\n\t *\t\t  0 +---+---+---+       `at` = 1,      +---+---+---+ 0\n\t *\t\t    | a | b | c |       `rows` = 2,    | a | b | c |\n\t *\t\t  1 +   +---+---+   <-- insert here    +   +---+---+ 1\n\t *\t\t    |   | d | e |                      |   |   |   |\n\t *\t\t  2 +   +---+---+       will give:     +   +---+---+ 2\n\t *\t\t    |   | f | g |                      |   |   |   |\n\t *\t\t  3 +---+---+---+                      +   +---+---+ 3\n\t *\t\t                                       |   | d | e |\n\t *\t\t                                       +   +---+---+ 4\n\t *\t\t                                       +   + f | g |\n\t *\t\t                                       +---+---+---+ 5\n\t *\n\t * @param {module:engine/model/element~Element} table The table model element where the rows will be inserted.\n\t * @param {Object} options\n\t * @param {Number} [options.at=0] The row index at which the rows will be inserted.\n\t * @param {Number} [options.rows=1] The number of rows to insert.\n\t * @param {Boolean|undefined} [options.copyStructureFromAbove] The flag for copying row structure. Note that\n\t * the row structure will not be copied if this option is not provided.\n\t */\n\tinsertRows( table, options = {} ) {\n\t\tconst model = this.editor.model;\n\n\t\tconst insertAt = options.at || 0;\n\t\tconst rowsToInsert = options.rows || 1;\n\t\tconst isCopyStructure = options.copyStructureFromAbove !== undefined;\n\t\tconst copyStructureFrom = options.copyStructureFromAbove ? insertAt - 1 : insertAt;\n\n\t\tconst rows = this.getRows( table );\n\t\tconst columns = this.getColumns( table );\n\n\t\tif ( insertAt > rows ) {\n\t\t\t/**\n\t\t\t * The `options.at` points at a row position that does not exist.\n\t\t\t *\n\t\t\t * @error tableutils-insertrows-insert-out-of-range\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'tableutils-insertrows-insert-out-of-range',\n\t\t\t\tthis,\n\t\t\t\t{ options }\n\t\t\t);\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\n\t\t\t// Inserting rows inside heading section requires to update `headingRows` attribute as the heading section will grow.\n\t\t\tif ( headingRows > insertAt ) {\n\t\t\t\tupdateNumericAttribute( 'headingRows', headingRows + rowsToInsert, table, writer, 0 );\n\t\t\t}\n\n\t\t\t// Inserting at the end or at the beginning of a table doesn't require to calculate anything special.\n\t\t\tif ( !isCopyStructure && ( insertAt === 0 || insertAt === rows ) ) {\n\t\t\t\tcreateEmptyRows( writer, table, insertAt, rowsToInsert, columns );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Iterate over all the rows above the inserted rows in order to check for the row-spanned cells.\n\t\t\tconst walkerEndRow = isCopyStructure ? Math.max( insertAt, copyStructureFrom ) : insertAt;\n\t\t\tconst tableIterator = new TableWalker( table, { endRow: walkerEndRow } );\n\n\t\t\t// Store spans of the reference row to reproduce it's structure. This array is column number indexed.\n\t\t\tconst rowColSpansMap = new Array( columns ).fill( 1 );\n\n\t\t\tfor ( const { row, column, cellHeight, cellWidth, cell } of tableIterator ) {\n\t\t\t\tconst lastCellRow = row + cellHeight - 1;\n\n\t\t\t\tconst isOverlappingInsertedRow = row < insertAt && insertAt <= lastCellRow;\n\t\t\t\tconst isReferenceRow = row <= copyStructureFrom && copyStructureFrom <= lastCellRow;\n\n\t\t\t\t// If the cell is row-spanned and overlaps the inserted row, then reserve space for it in the row map.\n\t\t\t\tif ( isOverlappingInsertedRow ) {\n\t\t\t\t\t// This cell overlaps the inserted rows so we need to expand it further.\n\t\t\t\t\twriter.setAttribute( 'rowspan', cellHeight + rowsToInsert, cell );\n\n\t\t\t\t\t// Mark this cell with negative number to indicate how many cells should be skipped when adding the new cells.\n\t\t\t\t\trowColSpansMap[ column ] = -cellWidth;\n\t\t\t\t}\n\t\t\t\t// Store the colspan from reference row.\n\t\t\t\telse if ( isCopyStructure && isReferenceRow ) {\n\t\t\t\t\trowColSpansMap[ column ] = cellWidth;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tfor ( let rowIndex = 0; rowIndex < rowsToInsert; rowIndex++ ) {\n\t\t\t\tconst tableRow = writer.createElement( 'tableRow' );\n\n\t\t\t\twriter.insert( tableRow, table, insertAt );\n\n\t\t\t\tfor ( let cellIndex = 0; cellIndex < rowColSpansMap.length; cellIndex++ ) {\n\t\t\t\t\tconst colspan = rowColSpansMap[ cellIndex ];\n\t\t\t\t\tconst insertPosition = writer.createPositionAt( tableRow, 'end' );\n\n\t\t\t\t\t// Insert the empty cell only if this slot is not row-spanned from any other cell.\n\t\t\t\t\tif ( colspan > 0 ) {\n\t\t\t\t\t\tcreateEmptyTableCell( writer, insertPosition, colspan > 1 ? { colspan } : null );\n\t\t\t\t\t}\n\n\t\t\t\t\t// Skip the col-spanned slots, there won't be any cells.\n\t\t\t\t\tcellIndex += Math.abs( colspan ) - 1;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Inserts columns into a table.\n\t *\n\t *\t\teditor.plugins.get( 'TableUtils' ).insertColumns( table, { at: 1, columns: 2 } );\n\t *\n\t * Assuming the table on the left, the above code will transform it to the table on the right:\n\t *\n\t *\t\t0   1   2   3                   0   1   2   3   4   5\n\t *\t\t+---+---+---+                   +---+---+---+---+---+\n\t *\t\t| a     | b |                   | a             | b |\n\t *\t\t+       +---+                   +               +---+\n\t *\t\t|       | c |                   |               | c |\n\t *\t\t+---+---+---+     will give:    +---+---+---+---+---+\n\t *\t\t| d | e | f |                   | d |   |   | e | f |\n\t *\t\t+---+   +---+                   +---+---+---+   +---+\n\t *\t\t| g |   | h |                   | g |   |   |   | h |\n\t *\t\t+---+---+---+                   +---+---+---+---+---+\n\t *\t\t| i         |                   | i                 |\n\t *\t\t+---+---+---+                   +---+---+---+---+---+\n\t *\t\t    ^---- insert here, `at` = 1, `columns` = 2\n\t *\n\t * @param {module:engine/model/element~Element} table The table model element where the columns will be inserted.\n\t * @param {Object} options\n\t * @param {Number} [options.at=0] The column index at which the columns will be inserted.\n\t * @param {Number} [options.columns=1] The number of columns to insert.\n\t */\n\tinsertColumns( table, options = {} ) {\n\t\tconst model = this.editor.model;\n\n\t\tconst insertAt = options.at || 0;\n\t\tconst columnsToInsert = options.columns || 1;\n\n\t\tmodel.change( writer => {\n\t\t\tconst headingColumns = table.getAttribute( 'headingColumns' );\n\n\t\t\t// Inserting columns inside heading section requires to update `headingColumns` attribute as the heading section will grow.\n\t\t\tif ( insertAt < headingColumns ) {\n\t\t\t\twriter.setAttribute( 'headingColumns', headingColumns + columnsToInsert, table );\n\t\t\t}\n\n\t\t\tconst tableColumns = this.getColumns( table );\n\n\t\t\t// Inserting at the end and at the beginning of a table doesn't require to calculate anything special.\n\t\t\tif ( insertAt === 0 || tableColumns === insertAt ) {\n\t\t\t\tfor ( const tableRow of table.getChildren() ) {\n\t\t\t\t\t// Ignore non-row elements inside the table (e.g. caption).\n\t\t\t\t\tif ( !tableRow.is( 'element', 'tableRow' ) ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tcreateCells( columnsToInsert, writer, writer.createPositionAt( tableRow, insertAt ? 'end' : 0 ) );\n\t\t\t\t}\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst tableWalker = new TableWalker( table, { column: insertAt, includeAllSlots: true } );\n\n\t\t\tfor ( const tableSlot of tableWalker ) {\n\t\t\t\tconst { row, cell, cellAnchorColumn, cellAnchorRow, cellWidth, cellHeight } = tableSlot;\n\n\t\t\t\t// When iterating over column the table walker outputs either:\n\t\t\t\t// - cells at given column index (cell \"e\" from method docs),\n\t\t\t\t// - spanned columns (spanned cell from row between cells \"g\" and \"h\" - spanned by \"e\", only if `includeAllSlots: true`),\n\t\t\t\t// - or a cell from the same row which spans over this column (cell \"a\").\n\n\t\t\t\tif ( cellAnchorColumn < insertAt ) {\n\t\t\t\t\t// If cell is anchored in previous column, it is a cell that spans over an inserted column (cell \"a\" & \"i\").\n\t\t\t\t\t// For such cells expand them by a number of columns inserted.\n\t\t\t\t\twriter.setAttribute( 'colspan', cellWidth + columnsToInsert, cell );\n\n\t\t\t\t\t// This cell will overlap cells in rows below so skip them (because of `includeAllSlots` option) - (cell \"a\")\n\t\t\t\t\tconst lastCellRow = cellAnchorRow + cellHeight - 1;\n\n\t\t\t\t\tfor ( let i = row; i <= lastCellRow; i++ ) {\n\t\t\t\t\t\ttableWalker.skipRow( i );\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// It's either cell at this column index or spanned cell by a row-spanned cell from row above.\n\t\t\t\t\t// In table above it's cell \"e\" and a spanned position from row below (empty cell between cells \"g\" and \"h\")\n\t\t\t\t\tcreateCells( columnsToInsert, writer, tableSlot.getPositionBefore() );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes rows from the given `table`.\n\t *\n\t * This method re-calculates the table geometry including `rowspan` attribute of table cells overlapping removed rows\n\t * and table headings values.\n\t *\n\t *\t\teditor.plugins.get( 'TableUtils' ).removeRows( table, { at: 1, rows: 2 } );\n\t *\n\t * Executing the above code in the context of the table on the left will transform its structure as presented on the right:\n\t *\n\t *\t\trow index\n\t *\t\t    ┌───┬───┬───┐        `at` = 1        ┌───┬───┬───┐\n\t *\t\t  0 │ a │ b │ c │        `rows` = 2      │ a │ b │ c │ 0\n\t *\t\t    │   ├───┼───┤                        │   ├───┼───┤\n\t *\t\t  1 │   │ d │ e │  <-- remove from here  │   │ d │ g │ 1\n\t *\t\t    │   │   ├───┤        will give:      ├───┼───┼───┤\n\t *\t\t  2 │   │   │ f │                        │ h │ i │ j │ 2\n\t *\t\t    │   │   ├───┤                        └───┴───┴───┘\n\t *\t\t  3 │   │   │ g │\n\t *\t\t    ├───┼───┼───┤\n\t *\t\t  4 │ h │ i │ j │\n\t *\t\t    └───┴───┴───┘\n\t *\n\t * @param {module:engine/model/element~Element} table\n\t * @param {Object} options\n\t * @param {Number} options.at The row index at which the removing rows will start.\n\t * @param {Number} [options.rows=1] The number of rows to remove.\n\t */\n\tremoveRows( table, options ) {\n\t\tconst model = this.editor.model;\n\n\t\tconst rowsToRemove = options.rows || 1;\n\t\tconst rowCount = this.getRows( table );\n\t\tconst first = options.at;\n\t\tconst last = first + rowsToRemove - 1;\n\n\t\tif ( last > rowCount - 1 ) {\n\t\t\t/**\n\t\t\t * The `options.at` param must point at existing row and `options.rows` must not exceed the rows in the table.\n\t\t\t *\n\t\t\t * @error tableutils-removerows-row-index-out-of-range\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'tableutils-removerows-row-index-out-of-range',\n\t\t\t\tthis,\n\t\t\t\t{ table, options }\n\t\t\t);\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\t// Removing rows from the table require that most calculations to be done prior to changing table structure.\n\t\t\t// Preparations must be done in the same enqueueChange callback to use the current table structure.\n\n\t\t\t// 1. Preparation - get row-spanned cells that have to be modified after removing rows.\n\t\t\tconst { cellsToMove, cellsToTrim } = getCellsToMoveAndTrimOnRemoveRow( table, first, last );\n\n\t\t\t// 2. Execution\n\n\t\t\t// 2a. Move cells from removed rows that extends over a removed section - must be done before removing rows.\n\t\t\t// This will fill any gaps in a rows below that previously were empty because of row-spanned cells.\n\t\t\tif ( cellsToMove.size ) {\n\t\t\t\tconst rowAfterRemovedSection = last + 1;\n\t\t\t\tmoveCellsToRow( table, rowAfterRemovedSection, cellsToMove, writer );\n\t\t\t}\n\n\t\t\t// 2b. Remove all required rows.\n\t\t\tfor ( let i = last; i >= first; i-- ) {\n\t\t\t\twriter.remove( table.getChild( i ) );\n\t\t\t}\n\n\t\t\t// 2c. Update cells from rows above that overlap removed section. Similar to step 2 but does not involve moving cells.\n\t\t\tfor ( const { rowspan, cell } of cellsToTrim ) {\n\t\t\t\tupdateNumericAttribute( 'rowspan', rowspan, cell, writer );\n\t\t\t}\n\n\t\t\t// 2d. Adjust heading rows if removed rows were in a heading section.\n\t\t\tupdateHeadingRows( table, first, last, writer );\n\n\t\t\t// 2e. Remove empty columns (without anchored cells) if there are any.\n\t\t\tif ( !removeEmptyColumns( table, this ) ) {\n\t\t\t\t// If there wasn't any empty columns then we still need to check if this wasn't called\n\t\t\t\t// because of cleaning empty rows and we only removed one of them.\n\t\t\t\tremoveEmptyRows( table, this );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes columns from the given `table`.\n\t *\n\t * This method re-calculates the table geometry including the `colspan` attribute of table cells overlapping removed columns\n\t * and table headings values.\n\t *\n\t *\t\teditor.plugins.get( 'TableUtils' ).removeColumns( table, { at: 1, columns: 2 } );\n\t *\n\t * Executing the above code in the context of the table on the left will transform its structure as presented on the right:\n\t *\n\t *\t\t  0   1   2   3   4                       0   1   2\n\t *\t\t┌───────────────┬───┐                   ┌───────┬───┐\n\t *\t\t│ a             │ b │                   │ a     │ b │\n\t *\t\t│               ├───┤                   │       ├───┤\n\t *\t\t│               │ c │                   │       │ c │\n\t *\t\t├───┬───┬───┬───┼───┤     will give:    ├───┬───┼───┤\n\t *\t\t│ d │ e │ f │ g │ h │                   │ d │ g │ h │\n\t *\t\t├───┼───┼───┤   ├───┤                   ├───┤   ├───┤\n\t *\t\t│ i │ j │ k │   │ l │                   │ i │   │ l │\n\t *\t\t├───┴───┴───┴───┴───┤                   ├───┴───┴───┤\n\t *\t\t│ m                 │                   │ m         │\n\t *\t\t└───────────────────┘                   └───────────┘\n\t *\t\t      ^---- remove from here, `at` = 1, `columns` = 2\n\t *\n\t * @param {module:engine/model/element~Element} table\n\t * @param {Object} options\n\t * @param {Number} options.at The row index at which the removing columns will start.\n\t * @param {Number} [options.columns=1] The number of columns to remove.\n\t */\n\tremoveColumns( table, options ) {\n\t\tconst model = this.editor.model;\n\t\tconst first = options.at;\n\t\tconst columnsToRemove = options.columns || 1;\n\t\tconst last = options.at + columnsToRemove - 1;\n\n\t\tmodel.change( writer => {\n\t\t\tadjustHeadingColumns( table, { first, last }, writer );\n\n\t\t\tfor ( let removedColumnIndex = last; removedColumnIndex >= first; removedColumnIndex-- ) {\n\t\t\t\tfor ( const { cell, column, cellWidth } of [ ...new TableWalker( table ) ] ) {\n\t\t\t\t\t// If colspaned cell overlaps removed column decrease its span.\n\t\t\t\t\tif ( column <= removedColumnIndex && cellWidth > 1 && column + cellWidth > removedColumnIndex ) {\n\t\t\t\t\t\tupdateNumericAttribute( 'colspan', cellWidth - 1, cell, writer );\n\t\t\t\t\t} else if ( column === removedColumnIndex ) {\n\t\t\t\t\t\t// The cell in removed column has colspan of 1.\n\t\t\t\t\t\twriter.remove( cell );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Remove empty rows that could appear after removing columns.\n\t\t\tif ( !removeEmptyRows( table, this ) ) {\n\t\t\t\t// If there wasn't any empty rows then we still need to check if this wasn't called\n\t\t\t\t// because of cleaning empty columns and we only removed one of them.\n\t\t\t\tremoveEmptyColumns( table, this );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Divides a table cell vertically into several ones.\n\t *\n\t * The cell will be visually split into more cells by updating colspans of other cells in a column\n\t * and inserting cells (columns) after that cell.\n\t *\n\t * In the table below, if cell \"a\" is split into 3 cells:\n\t *\n\t *\t\t+---+---+---+\n\t *\t\t| a | b | c |\n\t *\t\t+---+---+---+\n\t *\t\t| d | e | f |\n\t *\t\t+---+---+---+\n\t *\n\t * it will result in the table below:\n\t *\n\t *\t\t+---+---+---+---+---+\n\t *\t\t| a |   |   | b | c |\n\t *\t\t+---+---+---+---+---+\n\t *\t\t| d         | e | f |\n\t *\t\t+---+---+---+---+---+\n\t *\n\t * So cell \"d\" will get its `colspan` updated to `3` and 2 cells will be added (2 columns will be created).\n\t *\n\t * Splitting a cell that already has a `colspan` attribute set will distribute the cell `colspan` evenly and the remainder\n\t * will be left to the original cell:\n\t *\n\t *\t\t+---+---+---+\n\t *\t\t| a         |\n\t *\t\t+---+---+---+\n\t *\t\t| b | c | d |\n\t *\t\t+---+---+---+\n\t *\n\t * Splitting cell \"a\" with `colspan=3` into 2 cells will create 1 cell with a `colspan=a` and cell \"a\" that will have `colspan=2`:\n\t *\n\t *\t\t+---+---+---+\n\t *\t\t| a     |   |\n\t *\t\t+---+---+---+\n\t *\t\t| b | c | d |\n\t *\t\t+---+---+---+\n\t *\n\t * @param {module:engine/model/element~Element} tableCell\n\t * @param {Number} numberOfCells\n\t */\n\tsplitCellVertically( tableCell, numberOfCells = 2 ) {\n\t\tconst model = this.editor.model;\n\t\tconst tableRow = tableCell.parent;\n\t\tconst table = tableRow.parent;\n\n\t\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) || 1 );\n\t\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) || 1 );\n\n\t\tmodel.change( writer => {\n\t\t\t// First check - the cell spans over multiple rows so before doing anything else just split this cell.\n\t\t\tif ( colspan > 1 ) {\n\t\t\t\t// Get spans of new (inserted) cells and span to update of split cell.\n\t\t\t\tconst { newCellsSpan, updatedSpan } = breakSpanEvenly( colspan, numberOfCells );\n\n\t\t\t\tupdateNumericAttribute( 'colspan', updatedSpan, tableCell, writer );\n\n\t\t\t\t// Each inserted cell will have the same attributes:\n\t\t\t\tconst newCellsAttributes = {};\n\n\t\t\t\t// Do not store default value in the model.\n\t\t\t\tif ( newCellsSpan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.colspan = newCellsSpan;\n\t\t\t\t}\n\n\t\t\t\t// Copy rowspan of split cell.\n\t\t\t\tif ( rowspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.rowspan = rowspan;\n\t\t\t\t}\n\n\t\t\t\tconst cellsToInsert = colspan > numberOfCells ? numberOfCells - 1 : colspan - 1;\n\t\t\t\tcreateCells( cellsToInsert, writer, writer.createPositionAfter( tableCell ), newCellsAttributes );\n\t\t\t}\n\n\t\t\t// Second check - the cell has colspan of 1 or we need to create more cells then the currently one spans over.\n\t\t\tif ( colspan < numberOfCells ) {\n\t\t\t\tconst cellsToInsert = numberOfCells - colspan;\n\n\t\t\t\t// First step: expand cells on the same column as split cell.\n\t\t\t\tconst tableMap = [ ...new TableWalker( table ) ];\n\n\t\t\t\t// Get the column index of split cell.\n\t\t\t\tconst { column: splitCellColumn } = tableMap.find( ( { cell } ) => cell === tableCell );\n\n\t\t\t\t// Find cells which needs to be expanded vertically - those on the same column or those that spans over split cell's column.\n\t\t\t\tconst cellsToUpdate = tableMap.filter( ( { cell, cellWidth, column } ) => {\n\t\t\t\t\tconst isOnSameColumn = cell !== tableCell && column === splitCellColumn;\n\t\t\t\t\tconst spansOverColumn = ( column < splitCellColumn && column + cellWidth > splitCellColumn );\n\n\t\t\t\t\treturn isOnSameColumn || spansOverColumn;\n\t\t\t\t} );\n\n\t\t\t\t// Expand cells vertically.\n\t\t\t\tfor ( const { cell, cellWidth } of cellsToUpdate ) {\n\t\t\t\t\twriter.setAttribute( 'colspan', cellWidth + cellsToInsert, cell );\n\t\t\t\t}\n\n\t\t\t\t// Second step: create columns after split cell.\n\n\t\t\t\t// Each inserted cell will have the same attributes:\n\t\t\t\tconst newCellsAttributes = {};\n\n\t\t\t\t// Do not store default value in the model.\n\n\t\t\t\t// Copy rowspan of split cell.\n\t\t\t\tif ( rowspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.rowspan = rowspan;\n\t\t\t\t}\n\n\t\t\t\tcreateCells( cellsToInsert, writer, writer.createPositionAfter( tableCell ), newCellsAttributes );\n\n\t\t\t\tconst headingColumns = table.getAttribute( 'headingColumns' ) || 0;\n\n\t\t\t\t// Update heading section if split cell is in heading section.\n\t\t\t\tif ( headingColumns > splitCellColumn ) {\n\t\t\t\t\tupdateNumericAttribute( 'headingColumns', headingColumns + cellsToInsert, table, writer );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Divides a table cell horizontally into several ones.\n\t *\n\t * The cell will be visually split into more cells by updating rowspans of other cells in the row and inserting rows with a single cell\n\t * below.\n\t *\n\t * If in the table below cell \"b\" is split into 3 cells:\n\t *\n\t *\t\t+---+---+---+\n\t *\t\t| a | b | c |\n\t *\t\t+---+---+---+\n\t *\t\t| d | e | f |\n\t *\t\t+---+---+---+\n\t *\n\t * It will result in the table below:\n\t *\n\t *\t\t+---+---+---+\n\t *\t\t| a | b | c |\n\t *\t\t+   +---+   +\n\t *\t\t|   |   |   |\n\t *\t\t+   +---+   +\n\t *\t\t|   |   |   |\n\t *\t\t+---+---+---+\n\t *\t\t| d | e | f |\n\t *\t\t+---+---+---+\n\t *\n\t * So cells \"a\" and \"b\" will get their `rowspan` updated to `3` and 2 rows with a single cell will be added.\n\t *\n\t * Splitting a cell that already has a `rowspan` attribute set will distribute the cell `rowspan` evenly and the remainder\n\t * will be left to the original cell:\n\t *\n\t *\t\t+---+---+---+\n\t *\t\t| a | b | c |\n\t *\t\t+   +---+---+\n\t *\t\t|   | d | e |\n\t *\t\t+   +---+---+\n\t *\t\t|   | f | g |\n\t *\t\t+   +---+---+\n\t *\t\t|   | h | i |\n\t *\t\t+---+---+---+\n\t *\n\t * Splitting cell \"a\" with `rowspan=4` into 3 cells will create 2 cells with a `rowspan=1` and cell \"a\" will have `rowspan=2`:\n\t *\n\t *\t\t+---+---+---+\n\t *\t\t| a | b | c |\n\t *\t\t+   +---+---+\n\t *\t\t|   | d | e |\n\t *\t\t+---+---+---+\n\t *\t\t|   | f | g |\n\t *\t\t+---+---+---+\n\t *\t\t|   | h | i |\n\t *\t\t+---+---+---+\n\t *\n\t * @param {module:engine/model/element~Element} tableCell\n\t * @param {Number} numberOfCells\n\t */\n\tsplitCellHorizontally( tableCell, numberOfCells = 2 ) {\n\t\tconst model = this.editor.model;\n\n\t\tconst tableRow = tableCell.parent;\n\t\tconst table = tableRow.parent;\n\t\tconst splitCellRow = table.getChildIndex( tableRow );\n\n\t\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) || 1 );\n\t\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) || 1 );\n\n\t\tmodel.change( writer => {\n\t\t\t// First check - the cell spans over multiple rows so before doing anything else just split this cell.\n\t\t\tif ( rowspan > 1 ) {\n\t\t\t\t// Cache table map before updating table.\n\t\t\t\tconst tableMap = [ ...new TableWalker( table, {\n\t\t\t\t\tstartRow: splitCellRow,\n\t\t\t\t\tendRow: splitCellRow + rowspan - 1,\n\t\t\t\t\tincludeAllSlots: true\n\t\t\t\t} ) ];\n\n\t\t\t\t// Get spans of new (inserted) cells and span to update of split cell.\n\t\t\t\tconst { newCellsSpan, updatedSpan } = breakSpanEvenly( rowspan, numberOfCells );\n\n\t\t\t\tupdateNumericAttribute( 'rowspan', updatedSpan, tableCell, writer );\n\n\t\t\t\tconst { column: cellColumn } = tableMap.find( ( { cell } ) => cell === tableCell );\n\n\t\t\t\t// Each inserted cell will have the same attributes:\n\t\t\t\tconst newCellsAttributes = {};\n\n\t\t\t\t// Do not store default value in the model.\n\t\t\t\tif ( newCellsSpan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.rowspan = newCellsSpan;\n\t\t\t\t}\n\n\t\t\t\t// Copy colspan of split cell.\n\t\t\t\tif ( colspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.colspan = colspan;\n\t\t\t\t}\n\n\t\t\t\tfor ( const tableSlot of tableMap ) {\n\t\t\t\t\tconst { column, row } = tableSlot;\n\n\t\t\t\t\t// As both newly created cells and the split cell might have rowspan,\n\t\t\t\t\t// the insertion of new cells must go to appropriate rows:\n\t\t\t\t\t//\n\t\t\t\t\t// 1. It's a row after split cell + it's height.\n\t\t\t\t\tconst isAfterSplitCell = row >= splitCellRow + updatedSpan;\n\t\t\t\t\t// 2. Is on the same column.\n\t\t\t\t\tconst isOnSameColumn = column === cellColumn;\n\t\t\t\t\t// 3. And it's row index is after previous cell height.\n\t\t\t\t\tconst isInEvenlySplitRow = ( row + splitCellRow + updatedSpan ) % newCellsSpan === 0;\n\n\t\t\t\t\tif ( isAfterSplitCell && isOnSameColumn && isInEvenlySplitRow ) {\n\t\t\t\t\t\tcreateCells( 1, writer, tableSlot.getPositionBefore(), newCellsAttributes );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Second check - the cell has rowspan of 1 or we need to create more cells than the current cell spans over.\n\t\t\tif ( rowspan < numberOfCells ) {\n\t\t\t\t// We already split the cell in check one so here we split to the remaining number of cells only.\n\t\t\t\tconst cellsToInsert = numberOfCells - rowspan;\n\n\t\t\t\t// This check is needed since we need to check if there are any cells from previous rows than spans over this cell's row.\n\t\t\t\tconst tableMap = [ ...new TableWalker( table, { startRow: 0, endRow: splitCellRow } ) ];\n\n\t\t\t\t// First step: expand cells.\n\t\t\t\tfor ( const { cell, cellHeight, row } of tableMap ) {\n\t\t\t\t\t// Expand rowspan of cells that are either:\n\t\t\t\t\t// - on the same row as current cell,\n\t\t\t\t\t// - or are below split cell row and overlaps that row.\n\t\t\t\t\tif ( cell !== tableCell && row + cellHeight > splitCellRow ) {\n\t\t\t\t\t\tconst rowspanToSet = cellHeight + cellsToInsert;\n\n\t\t\t\t\t\twriter.setAttribute( 'rowspan', rowspanToSet, cell );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Second step: create rows with single cell below split cell.\n\t\t\t\tconst newCellsAttributes = {};\n\n\t\t\t\t// Copy colspan of split cell.\n\t\t\t\tif ( colspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.colspan = colspan;\n\t\t\t\t}\n\n\t\t\t\tcreateEmptyRows( writer, table, splitCellRow + 1, cellsToInsert, 1, newCellsAttributes );\n\n\t\t\t\t// Update heading section if split cell is in heading section.\n\t\t\t\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\n\t\t\t\tif ( headingRows > splitCellRow ) {\n\t\t\t\t\tupdateNumericAttribute( 'headingRows', headingRows + cellsToInsert, table, writer );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the number of columns for a given table.\n\t *\n\t *\t\teditor.plugins.get( 'TableUtils' ).getColumns( table );\n\t *\n\t * @param {module:engine/model/element~Element} table The table to analyze.\n\t * @returns {Number}\n\t */\n\tgetColumns( table ) {\n\t\t// Analyze first row only as all the rows should have the same width.\n\t\t// Using the first row without checking if it's a tableRow because we expect\n\t\t// that table will have only tableRow model elements at the beginning.\n\t\tconst row = table.getChild( 0 );\n\n\t\treturn [ ...row.getChildren() ].reduce( ( columns, row ) => {\n\t\t\tconst columnWidth = parseInt( row.getAttribute( 'colspan' ) || 1 );\n\n\t\t\treturn columns + columnWidth;\n\t\t}, 0 );\n\t}\n\n\t/**\n\t * Returns the number of rows for a given table. Any other element present in the table model is omitted.\n\t *\n\t *\t\teditor.plugins.get( 'TableUtils' ).getRows( table );\n\t *\n\t * @param {module:engine/model/element~Element} table The table to analyze.\n\t * @returns {Number}\n\t */\n\tgetRows( table ) {\n\t\t// Rowspan not included due to #6427.\n\t\treturn Array.from( table.getChildren() )\n\t\t\t.reduce( ( rowCount, child ) => child.is( 'element', 'tableRow' ) ? rowCount + 1 : rowCount, 0 );\n\t}\n\n\t/**\n\t * Creates an instance of the table walker.\n\t *\n\t * The table walker iterates internally by traversing the table from row index = 0 and column index = 0.\n\t * It walks row by row and column by column in order to output values defined in the options.\n\t * By default it will output only the locations that are occupied by a cell. To include also spanned rows and columns,\n\t * pass the `includeAllSlots` option.\n\t *\n\t * @protected\n\t * @param {module:engine/model/element~Element} table A table over which the walker iterates.\n\t * @param {Object} [options={}] An object with configuration.\n\t * @param {Number} [options.row] A row index for which this iterator will output cells.\n\t * Can't be used together with `startRow` and `endRow`.\n\t * @param {Number} [options.startRow=0] A row index from which this iterator should start. Can't be used together with `row`.\n\t * @param {Number} [options.endRow] A row index at which this iterator should end. Can't be used together with `row`.\n\t * @param {Number} [options.column] A column index for which this iterator will output cells.\n\t * Can't be used together with `startColumn` and `endColumn`.\n\t * @param {Number} [options.startColumn=0] A column index from which this iterator should start. Can't be used together with `column`.\n\t * @param {Number} [options.endColumn] A column index at which this iterator should end. Can't be used together with `column`.\n\t * @param {Boolean} [options.includeAllSlots=false] Also return values for spanned cells.\n\t */\n\tcreateTableWalker( table, options = {} ) {\n\t\treturn new TableWalker( table, options );\n\t}\n\n\t/**\n\t * Returns all model table cells that are fully selected (from the outside)\n\t * within the provided model selection's ranges.\n\t *\n\t * To obtain the cells selected from the inside, use\n\t * {@link #getTableCellsContainingSelection}.\n\t *\n\t * @param {module:engine/model/selection~Selection} selection\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\tgetSelectedTableCells( selection ) {\n\t\tconst cells = [];\n\n\t\tfor ( const range of this.sortRanges( selection.getRanges() ) ) {\n\t\t\tconst element = range.getContainedElement();\n\n\t\t\tif ( element && element.is( 'element', 'tableCell' ) ) {\n\t\t\t\tcells.push( element );\n\t\t\t}\n\t\t}\n\n\t\treturn cells;\n\t}\n\n\t/**\n\t * Returns all model table cells that the provided model selection's ranges\n\t * {@link module:engine/model/range~Range#start} inside.\n\t *\n\t * To obtain the cells selected from the outside, use\n\t * {@link #getSelectedTableCells}.\n\t *\n\t * @param {module:engine/model/selection~Selection} selection\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\tgetTableCellsContainingSelection( selection ) {\n\t\tconst cells = [];\n\n\t\tfor ( const range of selection.getRanges() ) {\n\t\t\tconst cellWithSelection = range.start.findAncestor( 'tableCell' );\n\n\t\t\tif ( cellWithSelection ) {\n\t\t\t\tcells.push( cellWithSelection );\n\t\t\t}\n\t\t}\n\n\t\treturn cells;\n\t}\n\n\t/**\n\t * Returns all model table cells that are either completely selected\n\t * by selection ranges or host selection range\n\t * {@link module:engine/model/range~Range#start start positions} inside them.\n\t *\n\t * Combines {@link #getTableCellsContainingSelection} and\n\t * {@link #getSelectedTableCells}.\n\t *\n\t * @param {module:engine/model/selection~Selection} selection\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\tgetSelectionAffectedTableCells( selection ) {\n\t\tconst selectedCells = this.getSelectedTableCells( selection );\n\n\t\tif ( selectedCells.length ) {\n\t\t\treturn selectedCells;\n\t\t}\n\n\t\treturn this.getTableCellsContainingSelection( selection );\n\t}\n\n\t/**\n\t * Returns an object with the `first` and `last` row index contained in the given `tableCells`.\n\t *\n\t *\t\tconst selectedTableCells = getSelectedTableCells( editor.model.document.selection );\n\t*\n\t*\t\tconst { first, last } = getRowIndexes( selectedTableCells );\n\t*\n\t*\t\tconsole.log( `Selected rows: ${ first } to ${ last }` );\n\t*\n\t* @param {Array.<module:engine/model/element~Element>} tableCells\n\t* @returns {Object} Returns an object with the `first` and `last` table row indexes.\n\t*/\n\tgetRowIndexes( tableCells ) {\n\t\tconst indexes = tableCells.map( cell => cell.parent.index );\n\n\t\treturn this._getFirstLastIndexesObject( indexes );\n\t}\n\n\t/**\n\t * Returns an object with the `first` and `last` column index contained in the given `tableCells`.\n\t *\n\t *\t\tconst selectedTableCells = getSelectedTableCells( editor.model.document.selection );\n\t*\n\t*\t\tconst { first, last } = getColumnIndexes( selectedTableCells );\n\t*\n\t*\t\tconsole.log( `Selected columns: ${ first } to ${ last }` );\n\t*\n\t* @param {Array.<module:engine/model/element~Element>} tableCells\n\t* @returns {Object} Returns an object with the `first` and `last` table column indexes.\n\t*/\n\tgetColumnIndexes( tableCells ) {\n\t\tconst table = tableCells[ 0 ].findAncestor( 'table' );\n\t\tconst tableMap = [ ...new TableWalker( table ) ];\n\n\t\tconst indexes = tableMap\n\t\t\t.filter( entry => tableCells.includes( entry.cell ) )\n\t\t\t.map( entry => entry.column );\n\n\t\treturn this._getFirstLastIndexesObject( indexes );\n\t}\n\n\t/**\n\t * Checks if the selection contains cells that do not exceed rectangular selection.\n\t *\n\t * In a table below:\n\t *\n\t *\t\t┌───┬───┬───┬───┐\n\t*\t\t│ a │ b │ c │ d │\n\t*\t\t├───┴───┼───┤   │\n\t*\t\t│ e     │ f │   │\n\t*\t\t│       ├───┼───┤\n\t*\t\t│       │ g │ h │\n\t*\t\t└───────┴───┴───┘\n\t*\n\t* Valid selections are these which create a solid rectangle (without gaps), such as:\n\t*   - a, b (two horizontal cells)\n\t*   - c, f (two vertical cells)\n\t*   - a, b, e (cell \"e\" spans over four cells)\n\t*   - c, d, f (cell d spans over a cell in the row below)\n\t*\n\t* While an invalid selection would be:\n\t*   - a, c (the unselected cell \"b\" creates a gap)\n\t*   - f, g, h (cell \"d\" spans over a cell from the row of \"f\" cell - thus creates a gap)\n\t*\n\t* @param {Array.<module:engine/model/element~Element>} selectedTableCells\n\t* @returns {Boolean}\n\t*/\n\tisSelectionRectangular( selectedTableCells ) {\n\t\tif ( selectedTableCells.length < 2 || !this._areCellInTheSameTableSection( selectedTableCells ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// A valid selection is a fully occupied rectangle composed of table cells.\n\t\t// Below we will calculate the area of a selected table cells and the area of valid selection.\n\t\t// The area of a valid selection is defined by top-left and bottom-right cells.\n\t\tconst rows = new Set();\n\t\tconst columns = new Set();\n\n\t\tlet areaOfSelectedCells = 0;\n\n\t\tfor ( const tableCell of selectedTableCells ) {\n\t\t\tconst { row, column } = this.getCellLocation( tableCell );\n\t\t\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) || 1 );\n\t\t\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) || 1 );\n\n\t\t\t// Record row & column indexes of current cell.\n\t\t\trows.add( row );\n\t\t\tcolumns.add( column );\n\n\t\t\t// For cells that spans over multiple rows add also the last row that this cell spans over.\n\t\t\tif ( rowspan > 1 ) {\n\t\t\t\trows.add( row + rowspan - 1 );\n\t\t\t}\n\n\t\t\t// For cells that spans over multiple columns add also the last column that this cell spans over.\n\t\t\tif ( colspan > 1 ) {\n\t\t\t\tcolumns.add( column + colspan - 1 );\n\t\t\t}\n\n\t\t\tareaOfSelectedCells += ( rowspan * colspan );\n\t\t}\n\n\t\t// We can only merge table cells that are in adjacent rows...\n\t\tconst areaOfValidSelection = getBiggestRectangleArea( rows, columns );\n\n\t\treturn areaOfValidSelection == areaOfSelectedCells;\n\t}\n\n\t/**\n\t * Returns array of sorted ranges.\n\t *\n\t * @param {Iterable.<module:engine/model/range~Range>} ranges\n\t * @return {Array.<module:engine/model/range~Range>}\n\t */\n\tsortRanges( ranges ) {\n\t\treturn Array.from( ranges ).sort( compareRangeOrder );\n\t}\n\n\t/**\n\t * Helper method to get an object with `first` and `last` indexes from an unsorted array of indexes.\n\t *\n\t * @private\n\t * @param {Number[]} indexes\n\t * @returns {Object}\n\t */\n\t_getFirstLastIndexesObject( indexes ) {\n\t\tconst allIndexesSorted = indexes.sort( ( indexA, indexB ) => indexA - indexB );\n\n\t\tconst first = allIndexesSorted[ 0 ];\n\t\tconst last = allIndexesSorted[ allIndexesSorted.length - 1 ];\n\n\t\treturn { first, last };\n\t}\n\n\t/**\n\t * Checks if the selection does not mix a header (column or row) with other cells.\n\t *\n\t * For instance, in the table below valid selections consist of cells with the same letter only.\n\t * So, a-a (same heading row and column) or d-d (body cells) are valid while c-d or a-b are not.\n\t *\n\t * header columns\n\t *\t\t  ↓   ↓\n\t *\t\t┌───┬───┬───┬───┐\n\t *\t\t│ a │ a │ b │ b │  ← header row\n\t *\t\t├───┼───┼───┼───┤\n\t *\t\t│ c │ c │ d │ d │\n\t *\t\t├───┼───┼───┼───┤\n\t *\t\t│ c │ c │ d │ d │\n\t *\t\t└───┴───┴───┴───┘\n\t *\n\t * @private\n\t * @param {Array.<module:engine/model/element~Element>} tableCells\n\t * @returns {Boolean}\n\t */\n\t_areCellInTheSameTableSection( tableCells ) {\n\t\tconst table = tableCells[ 0 ].findAncestor( 'table' );\n\n\t\tconst rowIndexes = this.getRowIndexes( tableCells );\n\t\tconst headingRows = parseInt( table.getAttribute( 'headingRows' ) || 0 );\n\n\t\t// Calculating row indexes is a bit cheaper so if this check fails we can't merge.\n\t\tif ( !this._areIndexesInSameSection( rowIndexes, headingRows ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst headingColumns = parseInt( table.getAttribute( 'headingColumns' ) || 0 );\n\t\tconst columnIndexes = this.getColumnIndexes( tableCells );\n\n\t\t// Similarly cells must be in same column section.\n\t\treturn this._areIndexesInSameSection( columnIndexes, headingColumns );\n\t}\n\n\t/**\n\t * Unified check if table rows/columns indexes are in the same heading/body section.\n\t *\n\t * @private\n\t * @param {Object} params\n\t * @param {Number} params.first\n\t * @param {Number} params.last\n\t * @param {Number} headingSectionSize\n\t */\n\t_areIndexesInSameSection( { first, last }, headingSectionSize ) {\n\t\tconst firstCellIsInHeading = first < headingSectionSize;\n\t\tconst lastCellIsInHeading = last < headingSectionSize;\n\n\t\treturn firstCellIsInHeading === lastCellIsInHeading;\n\t}\n}\n\n// Creates empty rows at the given index in an existing table.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/element~Element} table\n// @param {Number} insertAt The row index of row insertion.\n// @param {Number} rows The number of rows to create.\n// @param {Number} tableCellToInsert The number of cells to insert in each row.\nfunction createEmptyRows( writer, table, insertAt, rows, tableCellToInsert, attributes = {} ) {\n\tfor ( let i = 0; i < rows; i++ ) {\n\t\tconst tableRow = writer.createElement( 'tableRow' );\n\n\t\twriter.insert( tableRow, table, insertAt );\n\n\t\tcreateCells( tableCellToInsert, writer, writer.createPositionAt( tableRow, 'end' ), attributes );\n\t}\n}\n\n// Creates cells at a given position.\n//\n// @param {Number} columns The number of columns to create\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/position~Position} insertPosition\nfunction createCells( cells, writer, insertPosition, attributes = {} ) {\n\tfor ( let i = 0; i < cells; i++ ) {\n\t\tcreateEmptyTableCell( writer, insertPosition, attributes );\n\t}\n}\n\n// Evenly distributes the span of a cell to a number of provided cells.\n// The resulting spans will always be integer values.\n//\n// For instance breaking a span of 7 into 3 cells will return:\n//\n//\t\t{ newCellsSpan: 2, updatedSpan: 3 }\n//\n// as two cells will have a span of 2 and the remainder will go the first cell so its span will change to 3.\n//\n// @param {Number} span The span value do break.\n// @param {Number} numberOfCells The number of resulting spans.\n// @returns {{newCellsSpan: Number, updatedSpan: Number}}\nfunction breakSpanEvenly( span, numberOfCells ) {\n\tif ( span < numberOfCells ) {\n\t\treturn { newCellsSpan: 1, updatedSpan: 1 };\n\t}\n\n\tconst newCellsSpan = Math.floor( span / numberOfCells );\n\tconst updatedSpan = ( span - newCellsSpan * numberOfCells ) + newCellsSpan;\n\n\treturn { newCellsSpan, updatedSpan };\n}\n\n// Updates heading columns attribute if removing a row from head section.\nfunction adjustHeadingColumns( table, removedColumnIndexes, writer ) {\n\tconst headingColumns = table.getAttribute( 'headingColumns' ) || 0;\n\n\tif ( headingColumns && removedColumnIndexes.first < headingColumns ) {\n\t\tconst headingsRemoved = Math.min( headingColumns - 1 /* Other numbers are 0-based */, removedColumnIndexes.last ) -\n\t\t\tremovedColumnIndexes.first + 1;\n\n\t\twriter.setAttribute( 'headingColumns', headingColumns - headingsRemoved, table );\n\t}\n}\n\n// Calculates a new heading rows value for removing rows from heading section.\nfunction updateHeadingRows( table, first, last, writer ) {\n\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\n\tif ( first < headingRows ) {\n\t\tconst newRows = last < headingRows ? headingRows - ( last - first + 1 ) : first;\n\n\t\tupdateNumericAttribute( 'headingRows', newRows, table, writer, 0 );\n\t}\n}\n\n// Finds cells that will be:\n// - trimmed - Cells that are \"above\" removed rows sections and overlap the removed section - their rowspan must be trimmed.\n// - moved - Cells from removed rows section might stick out of. These cells are moved to the next row after a removed section.\n//\n// Sample table with overlapping & sticking out cells:\n//\n//      +----+----+----+----+----+\n//      | 00 | 01 | 02 | 03 | 04 |\n//      +----+    +    +    +    +\n//      | 10 |    |    |    |    |\n//      +----+----+    +    +    +\n//      | 20 | 21 |    |    |    | <-- removed row\n//      +    +    +----+    +    +\n//      |    |    | 32 |    |    | <-- removed row\n//      +----+    +    +----+    +\n//      | 40 |    |    | 43 |    |\n//      +----+----+----+----+----+\n//\n// In a table above:\n// - cells to trim: '02', '03' & '04'.\n// - cells to move: '21' & '32'.\nfunction getCellsToMoveAndTrimOnRemoveRow( table, first, last ) {\n\tconst cellsToMove = new Map();\n\tconst cellsToTrim = [];\n\n\tfor ( const { row, column, cellHeight, cell } of new TableWalker( table, { endRow: last } ) ) {\n\t\tconst lastRowOfCell = row + cellHeight - 1;\n\n\t\tconst isCellStickingOutFromRemovedRows = row >= first && row <= last && lastRowOfCell > last;\n\n\t\tif ( isCellStickingOutFromRemovedRows ) {\n\t\t\tconst rowspanInRemovedSection = last - row + 1;\n\t\t\tconst rowSpanToSet = cellHeight - rowspanInRemovedSection;\n\n\t\t\tcellsToMove.set( column, {\n\t\t\t\tcell,\n\t\t\t\trowspan: rowSpanToSet\n\t\t\t} );\n\t\t}\n\n\t\tconst isCellOverlappingRemovedRows = row < first && lastRowOfCell >= first;\n\n\t\tif ( isCellOverlappingRemovedRows ) {\n\t\t\tlet rowspanAdjustment;\n\n\t\t\t// Cell fully covers removed section - trim it by removed rows count.\n\t\t\tif ( lastRowOfCell >= last ) {\n\t\t\t\trowspanAdjustment = last - first + 1;\n\t\t\t}\n\t\t\t// Cell partially overlaps removed section - calculate cell's span that is in removed section.\n\t\t\telse {\n\t\t\t\trowspanAdjustment = lastRowOfCell - first + 1;\n\t\t\t}\n\n\t\t\tcellsToTrim.push( {\n\t\t\t\tcell,\n\t\t\t\trowspan: cellHeight - rowspanAdjustment\n\t\t\t} );\n\t\t}\n\t}\n\treturn { cellsToMove, cellsToTrim };\n}\n\nfunction moveCellsToRow( table, targetRowIndex, cellsToMove, writer ) {\n\tconst tableWalker = new TableWalker( table, {\n\t\tincludeAllSlots: true,\n\t\trow: targetRowIndex\n\t} );\n\n\tconst tableRowMap = [ ...tableWalker ];\n\tconst row = table.getChild( targetRowIndex );\n\n\tlet previousCell;\n\n\tfor ( const { column, cell, isAnchor } of tableRowMap ) {\n\t\tif ( cellsToMove.has( column ) ) {\n\t\t\tconst { cell: cellToMove, rowspan } = cellsToMove.get( column );\n\n\t\t\tconst targetPosition = previousCell ?\n\t\t\t\twriter.createPositionAfter( previousCell ) :\n\t\t\t\twriter.createPositionAt( row, 0 );\n\n\t\t\twriter.move( writer.createRangeOn( cellToMove ), targetPosition );\n\t\t\tupdateNumericAttribute( 'rowspan', rowspan, cellToMove, writer );\n\n\t\t\tpreviousCell = cellToMove;\n\t\t} else if ( isAnchor ) {\n\t\t\t// If cell is spanned then `cell` holds reference to overlapping cell. See ckeditor/ckeditor5#6502.\n\t\t\tpreviousCell = cell;\n\t\t}\n\t}\n}\n\nfunction compareRangeOrder( rangeA, rangeB ) {\n\t// Since table cell ranges are disjoint, it's enough to check their start positions.\n\tconst posA = rangeA.start;\n\tconst posB = rangeB.start;\n\n\t// Checking for equal position (returning 0) is not needed because this would be either:\n\t// a. Intersecting range (not allowed by model)\n\t// b. Collapsed range on the same position (allowed by model but should not happen).\n\treturn posA.isBefore( posB ) ? -1 : 1;\n}\n\n// Calculates the area of a maximum rectangle that can span over the provided row & column indexes.\n//\n// @param {Array.<Number>} rows\n// @param {Array.<Number>} columns\n// @returns {Number}\nfunction getBiggestRectangleArea( rows, columns ) {\n\tconst rowsIndexes = Array.from( rows.values() );\n\tconst columnIndexes = Array.from( columns.values() );\n\n\tconst lastRow = Math.max( ...rowsIndexes );\n\tconst firstRow = Math.min( ...rowsIndexes );\n\tconst lastColumn = Math.max( ...columnIndexes );\n\tconst firstColumn = Math.min( ...columnIndexes );\n\n\treturn ( lastRow - firstRow + 1 ) * ( lastColumn - firstColumn + 1 );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/mergecellscommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport TableUtils from '../tableutils';\nimport { updateNumericAttribute } from '../utils/common';\nimport { removeEmptyRowsColumns } from '../utils/structure';\n\n/**\n * The merge cells command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'mergeTableCells'` editor command.\n *\n * For example, to merge selected table cells:\n *\n *\t\teditor.execute( 'mergeTableCells' );\n *\n * @extends module:core/command~Command\n */\nexport default class MergeCellsCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\n\t\tconst selectedTableCells = tableUtils.getSelectedTableCells( this.editor.model.document.selection );\n\t\tthis.isEnabled = tableUtils.isSelectionRectangular( selectedTableCells, this.editor.plugins.get( TableUtils ) );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\n\t\tmodel.change( writer => {\n\t\t\tconst selectedTableCells = tableUtils.getSelectedTableCells( model.document.selection );\n\n\t\t\t// All cells will be merged into the first one.\n\t\t\tconst firstTableCell = selectedTableCells.shift();\n\n\t\t\t// Update target cell dimensions.\n\t\t\tconst { mergeWidth, mergeHeight } = getMergeDimensions( firstTableCell, selectedTableCells, tableUtils );\n\t\t\tupdateNumericAttribute( 'colspan', mergeWidth, firstTableCell, writer );\n\t\t\tupdateNumericAttribute( 'rowspan', mergeHeight, firstTableCell, writer );\n\n\t\t\tfor ( const tableCell of selectedTableCells ) {\n\t\t\t\tmergeTableCells( tableCell, firstTableCell, writer );\n\t\t\t}\n\n\t\t\tconst table = firstTableCell.findAncestor( 'table' );\n\n\t\t\t// Remove rows and columns that become empty (have no anchored cells).\n\t\t\tremoveEmptyRowsColumns( table, tableUtils );\n\n\t\t\twriter.setSelection( firstTableCell, 'in' );\n\t\t} );\n\t}\n}\n\n// Merges two table cells. It will ensure that after merging cells with empty paragraphs the resulting table cell will only have one\n// paragraph. If one of the merged table cells is empty, the merged table cell will have contents of the non-empty table cell.\n// If both are empty, the merged table cell will have only one empty paragraph.\n//\n// @param {module:engine/model/element~Element} cellBeingMerged\n// @param {module:engine/model/element~Element} targetCell\n// @param {module:engine/model/writer~Writer} writer\nfunction mergeTableCells( cellBeingMerged, targetCell, writer ) {\n\tif ( !isEmpty( cellBeingMerged ) ) {\n\t\tif ( isEmpty( targetCell ) ) {\n\t\t\twriter.remove( writer.createRangeIn( targetCell ) );\n\t\t}\n\n\t\twriter.move( writer.createRangeIn( cellBeingMerged ), writer.createPositionAt( targetCell, 'end' ) );\n\t}\n\n\t// Remove merged table cell.\n\twriter.remove( cellBeingMerged );\n}\n\n// Checks if the passed table cell contains an empty paragraph.\n//\n// @param {module:engine/model/element~Element} tableCell\n// @returns {Boolean}\nfunction isEmpty( tableCell ) {\n\treturn tableCell.childCount == 1 && tableCell.getChild( 0 ).is( 'element', 'paragraph' ) && tableCell.getChild( 0 ).isEmpty;\n}\n\nfunction getMergeDimensions( firstTableCell, selectedTableCells, tableUtils ) {\n\tlet maxWidthOffset = 0;\n\tlet maxHeightOffset = 0;\n\n\tfor ( const tableCell of selectedTableCells ) {\n\t\tconst { row, column } = tableUtils.getCellLocation( tableCell );\n\n\t\tmaxWidthOffset = getMaxOffset( tableCell, column, maxWidthOffset, 'colspan' );\n\t\tmaxHeightOffset = getMaxOffset( tableCell, row, maxHeightOffset, 'rowspan' );\n\t}\n\n\t// Update table cell span attribute and merge set selection on a merged contents.\n\tconst { row: firstCellRow, column: firstCellColumn } = tableUtils.getCellLocation( firstTableCell );\n\n\tconst mergeWidth = maxWidthOffset - firstCellColumn;\n\tconst mergeHeight = maxHeightOffset - firstCellRow;\n\n\treturn { mergeWidth, mergeHeight };\n}\n\nfunction getMaxOffset( tableCell, start, currentMaxOffset, which ) {\n\tconst dimensionValue = parseInt( tableCell.getAttribute( which ) || 1 );\n\n\treturn Math.max( currentMaxOffset, start + dimensionValue );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/selectrowcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The select row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'selectTableRow'` editor command.\n *\n * To select the rows containing the selected cells, execute the command:\n *\n *\t\teditor.execute( 'selectTableRow' );\n *\n * @extends module:core/command~Command\n */\nexport default class SelectRowCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = selectedCells.length > 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst rowIndexes = tableUtils.getRowIndexes( referenceCells );\n\n\t\tconst table = referenceCells[ 0 ].findAncestor( 'table' );\n\t\tconst rangesToSelect = [];\n\n\t\tfor ( let rowIndex = rowIndexes.first; rowIndex <= rowIndexes.last; rowIndex++ ) {\n\t\t\tfor ( const cell of table.getChild( rowIndex ).getChildren() ) {\n\t\t\t\trangesToSelect.push( model.createRangeOn( cell ) );\n\t\t\t}\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( rangesToSelect );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/selectcolumncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport TableWalker from '../tablewalker';\n\n/**\n * The select column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'selectTableColumn'` editor command.\n *\n * To select the columns containing the selected cells, execute the command:\n *\n *\t\teditor.execute( 'selectTableColumn' );\n *\n * @extends module:core/command~Command\n */\nexport default class SelectColumnCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = selectedCells.length > 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\t\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst firstCell = referenceCells[ 0 ];\n\t\tconst lastCell = referenceCells.pop();\n\t\tconst table = firstCell.findAncestor( 'table' );\n\n\t\tconst startLocation = tableUtils.getCellLocation( firstCell );\n\t\tconst endLocation = tableUtils.getCellLocation( lastCell );\n\n\t\tconst startColumn = Math.min( startLocation.column, endLocation.column );\n\t\tconst endColumn = Math.max( startLocation.column, endLocation.column );\n\n\t\tconst rangesToSelect = [];\n\n\t\tfor ( const cellInfo of new TableWalker( table, { startColumn, endColumn } ) ) {\n\t\t\trangesToSelect.push( model.createRangeOn( cellInfo.cell ) );\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( rangesToSelect );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-layout-post-fixer\n */\n\nimport TableWalker from './../tablewalker';\nimport { createEmptyTableCell, updateNumericAttribute } from '../utils/common';\n\n/**\n * Injects a table layout post-fixer into the model.\n *\n * The role of the table layout post-fixer is to ensure that the table rows have the correct structure\n * after a {@link module:engine/model/model~Model#change `change()`} block was executed.\n *\n * The correct structure means that:\n *\n * * All table rows have the same size.\n * * None of the table cells extend vertically beyond their section (either header or body).\n * * A table cell has always at least one element as a child.\n *\n * If the table structure is not correct, the post-fixer will automatically correct it in two steps:\n *\n * 1. It will clip table cells that extend beyond their section.\n * 2. It will add empty table cells to the rows that are narrower than the widest table row.\n *\n * ## Clipping overlapping table cells\n *\n * Such situation may occur when pasting a table (or a part of a table) to the editor from external sources.\n *\n * For example, see the following table which has a cell (FOO) with the rowspan attribute (2):\n *\n *\t\t<table headingRows=\"1\">\n *\t\t\t<tableRow>\n *\t\t\t\t<tableCell rowspan=\"2\"><paragraph>FOO</paragraph></tableCell>\n *\t\t\t\t<tableCell colspan=\"2\"><paragraph>BAR</paragraph></tableCell>\n *\t\t\t</tableRow>\n *\t\t\t<tableRow>\n *\t\t\t\t<tableCell><paragraph>BAZ</paragraph></tableCell>\n *\t\t\t\t<tableCell><paragraph>XYZ</paragraph></tableCell>\n *\t\t\t</tableRow>\n *\t\t</table>\n *\n * It will be rendered in the view as:\n *\n *\t\t<table>\n *\t\t\t<thead>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td rowspan=\"2\">FOO</td>\n *\t\t\t\t\t<td colspan=\"2\">BAR</td>\n *\t\t\t\t</tr>\n *\t\t\t</thead>\n *\t\t\t<tbody>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>BAZ</td>\n *\t\t\t\t\t<td>XYZ</td>\n *\t\t\t\t</tr>\n *\t\t\t</tbody>\n *\t\t</table>\n *\n * In the above example the table will be rendered as a table with two rows: one in the header and second one in the body.\n * The table cell (FOO) cannot span over multiple rows as it would extend from the header to the body section.\n * The `rowspan` attribute must be changed to (1). The value (1) is the default value of the `rowspan` attribute\n * so the `rowspan` attribute will be removed from the model.\n *\n * The table cell with BAZ in the content will be in the first column of the table.\n *\n * ## Adding missing table cells\n *\n * The table post-fixer will insert empty table cells to equalize table row sizes (the number of columns).\n * The size of a table row is calculated by counting column spans of table cells, both horizontal (from the same row) and\n * vertical (from the rows above).\n *\n * In the above example, the table row in the body section of the table is narrower then the row from the header: it has two cells\n * with the default colspan (1). The header row has one cell with colspan (1) and the second with colspan (2).\n * The table cell (FOO) does not extend beyond the head section (and as such will be fixed in the first step of this post-fixer).\n * The post-fixer will add a missing table cell to the row in the body section of the table.\n *\n * The table from the above example will be fixed and rendered to the view as below:\n *\n *\t\t<table>\n *\t\t\t<thead>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td rowspan=\"2\">FOO</td>\n *\t\t\t\t\t<td colspan=\"2\">BAR</td>\n *\t\t\t\t</tr>\n *\t\t\t</thead>\n *\t\t\t<tbody>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>BAZ</td>\n *\t\t\t\t\t<td>XYZ</td>\n *\t\t\t\t</tr>\n *\t\t\t</tbody>\n *\t\t</table>\n *\n * ## Collaboration and undo - Expectations vs post-fixer results\n *\n * The table post-fixer only ensures proper structure without a deeper analysis of the nature of the change. As such, it might lead\n * to a structure which was not intended by the user. In particular, it will also fix undo steps (in conjunction with collaboration)\n * in which the editor content might not return to the original state.\n *\n * This will usually happen when one or more users change the size of the table.\n *\n * As an example see the table below:\n *\n *\t\t<table>\n *\t\t\t<tbody>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>11</td>\n *\t\t\t\t\t<td>12</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>21</td>\n *\t\t\t\t\t<td>22</td>\n *\t\t\t\t</tr>\n *\t\t\t</tbody>\n *\t\t</table>\n *\n * and the user actions:\n *\n * 1. Both users have a table with two rows and two columns.\n * 2. User A adds a column at the end of the table. This will insert empty table cells to two rows.\n * 3. User B adds a row at the end of the table. This will insert a row with two empty table cells.\n * 4. Both users will have a table as below:\n *\n *\n *\t\t<table>\n *\t\t\t<tbody>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>11</td>\n *\t\t\t\t\t<td>12</td>\n *\t\t\t\t\t<td>(empty, inserted by A)</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>21</td>\n *\t\t\t\t\t<td>22</td>\n *\t\t\t\t\t<td>(empty, inserted by A)</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t</tr>\n *\t\t\t</tbody>\n *\t\t</table>\n *\n * The last row is shorter then others so the table post-fixer will add an empty row to the last row:\n *\n *\t\t<table>\n *\t\t\t<tbody>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>11</td>\n *\t\t\t\t\t<td>12</td>\n *\t\t\t\t\t<td>(empty, inserted by A)</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>21</td>\n *\t\t\t\t\t<td>22</td>\n *\t\t\t\t\t<td>(empty, inserted by A)</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t\t<td>(empty, inserted by the post-fixer)</td>\n *\t\t\t\t</tr>\n *\t\t\t</tbody>\n *\t\t</table>\n *\n * Unfortunately undo does not know the nature of the changes and depending on which user applies the post-fixer changes, undoing them\n * might lead to a broken table. If User B undoes inserting the column to the table, the undo engine will undo only the operations of\n * inserting empty cells to rows from the initial table state (row 1 and 2) but the cell in the post-fixed row will remain:\n *\n *\t\t<table>\n *\t\t\t<tbody>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>11</td>\n *\t\t\t\t\t<td>12</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>21</td>\n *\t\t\t\t\t<td>22</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t\t<td>(empty, inserted by a post-fixer)</td>\n *\t\t\t\t</tr>\n *\t\t\t</tbody>\n *\t\t</table>\n *\n * After undo, the table post-fixer will detect that two rows are shorter than others and will fix the table to:\n *\n *\t\t<table>\n *\t\t\t<tbody>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>11</td>\n *\t\t\t\t\t<td>12</td>\n *\t\t\t\t\t<td>(empty, inserted by a post-fixer after undo)</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>21</td>\n *\t\t\t\t\t<td>22</td>\n *\t\t\t\t\t<td>(empty, inserted by a post-fixer after undo)</td>\n *\t\t\t\t</tr>\n *\t\t\t\t<tr>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t\t<td>(empty, inserted by B)</td>\n *\t\t\t\t\t<td>(empty, inserted by a post-fixer)</td>\n *\t\t\t\t</tr>\n *\t\t\t</tbody>\n *\t\t</table>\n * @param {module:engine/model/model~Model} model\n */\nexport default function injectTableLayoutPostFixer( model ) {\n\tmodel.document.registerPostFixer( writer => tableLayoutPostFixer( writer, model ) );\n}\n\n// The table layout post-fixer.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/model~Model} model\nfunction tableLayoutPostFixer( writer, model ) {\n\tconst changes = model.document.differ.getChanges();\n\n\tlet wasFixed = false;\n\n\t// Do not analyze the same table more then once - may happen for multiple changes in the same table.\n\tconst analyzedTables = new Set();\n\n\tfor ( const entry of changes ) {\n\t\tlet table;\n\n\t\tif ( entry.name == 'table' && entry.type == 'insert' ) {\n\t\t\ttable = entry.position.nodeAfter;\n\t\t}\n\n\t\t// Fix table on adding/removing table cells and rows.\n\t\tif ( entry.name == 'tableRow' || entry.name == 'tableCell' ) {\n\t\t\ttable = entry.position.findAncestor( 'table' );\n\t\t}\n\n\t\t// Fix table on any table's attribute change - including attributes of table cells.\n\t\tif ( isTableAttributeEntry( entry ) ) {\n\t\t\ttable = entry.range.start.findAncestor( 'table' );\n\t\t}\n\n\t\tif ( table && !analyzedTables.has( table ) ) {\n\t\t\t// Step 1: correct rowspans of table cells if necessary.\n\t\t\t// The wasFixed flag should be true if any of tables in batch was fixed - might be more then one.\n\t\t\twasFixed = fixTableCellsRowspan( table, writer ) || wasFixed;\n\t\t\t// Step 2: fix table rows sizes.\n\t\t\twasFixed = fixTableRowsSizes( table, writer ) || wasFixed;\n\n\t\t\tanalyzedTables.add( table );\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n// Fixes the invalid value of the `rowspan` attribute because a table cell cannot vertically extend beyond the table section it belongs to.\n//\n// @param {module:engine/model/element~Element} table\n// @param {module:engine/model/writer~Writer} writer\n// @returns {Boolean} Returns `true` if the table was fixed.\nfunction fixTableCellsRowspan( table, writer ) {\n\tlet wasFixed = false;\n\n\tconst cellsToTrim = findCellsToTrim( table );\n\n\tif ( cellsToTrim.length ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( `Post-fixing table: trimming cells row-spans (${ cellsToTrim.length }).` );\n\n\t\twasFixed = true;\n\n\t\tfor ( const data of cellsToTrim ) {\n\t\t\tupdateNumericAttribute( 'rowspan', data.rowspan, data.cell, writer, 1 );\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n// Makes all table rows in a table the same size.\n//\n// @param {module:engine/model/element~Element} table\n// @param {module:engine/model/writer~Writer} writer\n// @returns {Boolean} Returns `true` if the table was fixed.\nfunction fixTableRowsSizes( table, writer ) {\n\tlet wasFixed = false;\n\n\tconst childrenLengths = getChildrenLengths( table );\n\tconst rowsToRemove = [];\n\n\t// Find empty rows.\n\tfor ( const [ rowIndex, size ] of childrenLengths.entries() ) {\n\t\t// Ignore all non-row models.\n\t\tif ( !size && table.getChild( rowIndex ).is( 'element', 'tableRow' ) ) {\n\t\t\trowsToRemove.push( rowIndex );\n\t\t}\n\t}\n\n\t// Remove empty rows.\n\tif ( rowsToRemove.length ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( `Post-fixing table: remove empty rows (${ rowsToRemove.length }).` );\n\n\t\twasFixed = true;\n\n\t\tfor ( const rowIndex of rowsToRemove.reverse() ) {\n\t\t\twriter.remove( table.getChild( rowIndex ) );\n\t\t\tchildrenLengths.splice( rowIndex, 1 );\n\t\t}\n\t}\n\n\t// Filter out everything that's not a table row.\n\tconst rowsLengths = childrenLengths.filter( ( row, rowIndex ) => table.getChild( rowIndex ).is( 'element', 'tableRow' ) );\n\n\t// Verify if all the rows have the same number of columns.\n\tconst tableSize = rowsLengths[ 0 ];\n\tconst isValid = rowsLengths.every( length => length === tableSize );\n\n\tif ( !isValid ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( 'Post-fixing table: adding missing cells.' );\n\n\t\t// Find the maximum number of columns.\n\t\tconst maxColumns = rowsLengths.reduce( ( prev, current ) => current > prev ? current : prev, 0 );\n\n\t\tfor ( const [ rowIndex, size ] of rowsLengths.entries() ) {\n\t\t\tconst columnsToInsert = maxColumns - size;\n\n\t\t\tif ( columnsToInsert ) {\n\t\t\t\tfor ( let i = 0; i < columnsToInsert; i++ ) {\n\t\t\t\t\tcreateEmptyTableCell( writer, writer.createPositionAt( table.getChild( rowIndex ), 'end' ) );\n\t\t\t\t}\n\n\t\t\t\twasFixed = true;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n// Searches for table cells that extend beyond the table section to which they belong to. It will return an array of objects\n// that stores table cells to be trimmed and the correct value of the `rowspan` attribute to set.\n//\n// @param {module:engine/model/element~Element} table\n// @returns {Array.<{{cell, rowspan}}>}\nfunction findCellsToTrim( table ) {\n\tconst headingRows = parseInt( table.getAttribute( 'headingRows' ) || 0 );\n\tconst maxRows = Array.from( table.getChildren() )\n\t\t.reduce( ( count, row ) => row.is( 'element', 'tableRow' ) ? count + 1 : count, 0 );\n\n\tconst cellsToTrim = [];\n\n\tfor ( const { row, cell, cellHeight } of new TableWalker( table ) ) {\n\t\t// Skip cells that do not expand over its row.\n\t\tif ( cellHeight < 2 ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst isInHeader = row < headingRows;\n\n\t\t// Row limit is either end of header section or whole table as table body is after the header.\n\t\tconst rowLimit = isInHeader ? headingRows : maxRows;\n\n\t\t// If table cell expands over its limit reduce it height to proper value.\n\t\tif ( row + cellHeight > rowLimit ) {\n\t\t\tconst newRowspan = rowLimit - row;\n\n\t\t\tcellsToTrim.push( { cell, rowspan: newRowspan } );\n\t\t}\n\t}\n\n\treturn cellsToTrim;\n}\n\n// Returns an array with lengths of rows assigned to the corresponding row index.\n//\n// @param {module:engine/model/element~Element} table\n// @returns {Array.<Number>}\nfunction getChildrenLengths( table ) {\n\t// TableWalker will not provide items for the empty rows, we need to pre-fill this array.\n\tconst lengths = new Array( table.childCount ).fill( 0 );\n\n\tfor ( const { rowIndex } of new TableWalker( table, { includeAllSlots: true } ) ) {\n\t\tlengths[ rowIndex ]++;\n\t}\n\n\treturn lengths;\n}\n\n// Checks if the differ entry for an attribute change is one of the table's attributes.\n//\n// @param entry\n// @returns {Boolean}\nfunction isTableAttributeEntry( entry ) {\n\tconst isAttributeType = entry.type === 'attribute';\n\tconst key = entry.attributeKey;\n\n\treturn isAttributeType && ( key === 'headingRows' || key === 'colspan' || key === 'rowspan' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-cell-paragraph-post-fixer\n */\n\n/**\n * Injects a table cell post-fixer into the model which inserts a `paragraph` element into empty table cells.\n *\n * A table cell must contain at least one block element as a child. An empty table cell will have an empty `paragraph` as a child.\n *\n *\t\t<table>\n *\t\t\t<tableRow>\n *\t\t\t\t<tableCell></tableCell>\n *\t\t\t</tableRow>\n *\t\t</table>\n *\n * Will be fixed to:\n *\n *\t\t<table>\n *\t\t\t<tableRow>\n *\t\t\t\t<tableCell><paragraph></paragraph></tableCell>\n *\t\t\t</tableRow>\n *\t\t</table>\n *\n * @param {module:engine/model/model~Model} model\n */\nexport default function injectTableCellParagraphPostFixer( model ) {\n\tmodel.document.registerPostFixer( writer => tableCellContentsPostFixer( writer, model ) );\n}\n\n// The table cell contents post-fixer.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/model~Model} model\nfunction tableCellContentsPostFixer( writer, model ) {\n\tconst changes = model.document.differ.getChanges();\n\n\tlet wasFixed = false;\n\n\tfor ( const entry of changes ) {\n\t\tif ( entry.type == 'insert' && entry.name == 'table' ) {\n\t\t\twasFixed = fixTable( entry.position.nodeAfter, writer ) || wasFixed;\n\t\t}\n\n\t\tif ( entry.type == 'insert' && entry.name == 'tableRow' ) {\n\t\t\twasFixed = fixTableRow( entry.position.nodeAfter, writer ) || wasFixed;\n\t\t}\n\n\t\tif ( entry.type == 'insert' && entry.name == 'tableCell' ) {\n\t\t\twasFixed = fixTableCellContent( entry.position.nodeAfter, writer ) || wasFixed;\n\t\t}\n\n\t\tif ( checkTableCellChange( entry ) ) {\n\t\t\twasFixed = fixTableCellContent( entry.position.parent, writer ) || wasFixed;\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n// Fixes all table cells in a table.\n//\n// @param {module:engine/model/element~Element} table\n// @param {module:engine/model/writer~Writer} writer\nfunction fixTable( table, writer ) {\n\tlet wasFixed = false;\n\n\tfor ( const row of table.getChildren() ) {\n\t\tif ( row.is( 'element', 'tableRow' ) ) {\n\t\t\twasFixed = fixTableRow( row, writer ) || wasFixed;\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n// Fixes all table cells in a table row.\n//\n// @param {module:engine/model/element~Element} tableRow\n// @param {module:engine/model/writer~Writer} writer\nfunction fixTableRow( tableRow, writer ) {\n\tlet wasFixed = false;\n\n\tfor ( const tableCell of tableRow.getChildren() ) {\n\t\twasFixed = fixTableCellContent( tableCell, writer ) || wasFixed;\n\t}\n\n\treturn wasFixed;\n}\n\n// Fixes all table cell content by:\n// - Adding a paragraph to a table cell without any child.\n// - Wrapping direct $text in a `<paragraph>`.\n//\n// @param {module:engine/model/element~Element} table\n// @param {module:engine/model/writer~Writer} writer\n// @returns {Boolean}\nfunction fixTableCellContent( tableCell, writer ) {\n\t// Insert paragraph to an empty table cell.\n\tif ( tableCell.childCount == 0 ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( 'Post-fixing table: insert paragraph in empty cell.' );\n\n\t\twriter.insertElement( 'paragraph', tableCell );\n\n\t\treturn true;\n\t}\n\n\t// Check table cell children for directly placed text nodes.\n\t// Temporary solution. See https://github.com/ckeditor/ckeditor5/issues/1464.\n\tconst textNodes = Array.from( tableCell.getChildren() ).filter( child => child.is( '$text' ) );\n\n\t// @if CK_DEBUG_TABLE // textNodes.length && console.log( 'Post-fixing table: wrap cell content with paragraph.' );\n\n\tfor ( const child of textNodes ) {\n\t\twriter.wrap( writer.createRangeOn( child ), 'paragraph' );\n\t}\n\n\t// Return true when there were text nodes to fix.\n\treturn !!textNodes.length;\n}\n\n// Checks if a differ change should fix the table cell. This happens on:\n// - Removing content from the table cell (i.e. `tableCell` can be left empty).\n// - Adding a text node directly into a table cell.\n//\n// @param {Object} differ change entry\n// @returns {Boolean}\nfunction checkTableCellChange( entry ) {\n\tif ( !entry.position || !entry.position.parent.is( 'element', 'tableCell' ) ) {\n\t\treturn false;\n\t}\n\n\treturn entry.type == 'insert' && entry.name == '$text' || entry.type == 'remove';\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-cell-refresh-post-fixer\n */\n\nimport { isSingleParagraphWithoutAttributes } from './downcast';\n\n/**\n * A table cell refresh handler which marks the table cell in the differ to have it re-rendered.\n *\n * Model `paragraph` inside a table cell can be rendered as `<span>` or `<p>`. It is rendered as `<span>` if this is the only block\n * element in that table cell and it does not have any attributes. It is rendered as `<p>` otherwise.\n *\n * When table cell content changes, for example a second `paragraph` element is added, we need to ensure that the first `paragraph` is\n * re-rendered so it changes from `<span>` to `<p>`. The easiest way to do it is to re-render the entire table cell.\n *\n * @param {module:engine/model/model~Model} model\n * @param {module:engine/controller/editingcontroller~EditingController} editing\n */\nexport default function tableCellRefreshHandler( model, editing ) {\n\tconst differ = model.document.differ;\n\n\t// Stores cells to be refreshed, so the table cell will be refreshed once for multiple changes.\n\tconst cellsToCheck = new Set();\n\n\tfor ( const change of differ.getChanges() ) {\n\t\tconst parent = change.type == 'attribute' ? change.range.start.parent : change.position.parent;\n\n\t\tif ( parent.is( 'element', 'tableCell' ) ) {\n\t\t\tcellsToCheck.add( parent );\n\t\t}\n\t}\n\n\tfor ( const tableCell of cellsToCheck.values() ) {\n\t\tconst paragraphsToRefresh = Array.from( tableCell.getChildren() ).filter( child => shouldRefresh( child, editing.mapper ) );\n\n\t\tfor ( const paragraph of paragraphsToRefresh ) {\n\t\t\tediting.reconvertItem( paragraph );\n\t\t}\n\t}\n}\n\n// Check if given model element needs refreshing.\n//\n// @param {module:engine/model/element~Element} modelElement\n// @param {module:engine/conversion/mapper~Mapper} mapper\n// @returns {Boolean}\nfunction shouldRefresh( child, mapper ) {\n\tif ( !child.is( 'element', 'paragraph' ) ) {\n\t\treturn false;\n\t}\n\n\tconst viewElement = mapper.toViewElement( child );\n\n\tif ( !viewElement ) {\n\t\treturn false;\n\t}\n\n\treturn isSingleParagraphWithoutAttributes( child ) !== viewElement.is( 'element', 'span' );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableediting.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport upcastTable, { ensureParagraphInTableCell, skipEmptyTableRow, upcastTableFigure } from './converters/upcasttable';\nimport { convertParagraphInTableCell, downcastCell, downcastRow, downcastTable } from './converters/downcast';\n\nimport InsertTableCommand from './commands/inserttablecommand';\nimport InsertRowCommand from './commands/insertrowcommand';\nimport InsertColumnCommand from './commands/insertcolumncommand';\nimport SplitCellCommand from './commands/splitcellcommand';\nimport MergeCellCommand from './commands/mergecellcommand';\nimport RemoveRowCommand from './commands/removerowcommand';\nimport RemoveColumnCommand from './commands/removecolumncommand';\nimport SetHeaderRowCommand from './commands/setheaderrowcommand';\nimport SetHeaderColumnCommand from './commands/setheadercolumncommand';\nimport MergeCellsCommand from './commands/mergecellscommand';\nimport SelectRowCommand from './commands/selectrowcommand';\nimport SelectColumnCommand from './commands/selectcolumncommand';\nimport TableUtils from '../src/tableutils';\n\nimport injectTableLayoutPostFixer from './converters/table-layout-post-fixer';\nimport injectTableCellParagraphPostFixer from './converters/table-cell-paragraph-post-fixer';\n\nimport tableHeadingsRefreshHandler from './converters/table-headings-refresh-handler';\nimport tableCellRefreshHandler from './converters/table-cell-refresh-handler';\n\nimport '../theme/tableediting.css';\n\n/**\n * The table editing feature.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\t\tconst conversion = editor.conversion;\n\t\tconst tableUtils = editor.plugins.get( TableUtils );\n\n\t\tschema.register( 'table', {\n\t\t\tinheritAllFrom: '$blockObject',\n\t\t\tallowAttributes: [ 'headingRows', 'headingColumns' ]\n\t\t} );\n\n\t\tschema.register( 'tableRow', {\n\t\t\tallowIn: 'table',\n\t\t\tisLimit: true\n\t\t} );\n\n\t\tschema.register( 'tableCell', {\n\t\t\tallowContentOf: '$container',\n\t\t\tallowIn: 'tableRow',\n\t\t\tallowAttributes: [ 'colspan', 'rowspan' ],\n\t\t\tisLimit: true,\n\t\t\tisSelectable: true\n\t\t} );\n\n\t\t// Figure conversion.\n\t\tconversion.for( 'upcast' ).add( upcastTableFigure() );\n\n\t\t// Table conversion.\n\t\tconversion.for( 'upcast' ).add( upcastTable() );\n\n\t\tconversion.for( 'editingDowncast' ).elementToStructure( {\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tattributes: [ 'headingRows' ]\n\t\t\t},\n\t\t\tview: downcastTable( tableUtils, { asWidget: true } )\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToStructure( {\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tattributes: [ 'headingRows' ]\n\t\t\t},\n\t\t\tview: downcastTable( tableUtils )\n\t\t} );\n\n\t\t// Table row conversion.\n\t\tconversion.for( 'upcast' ).elementToElement( { model: 'tableRow', view: 'tr' } );\n\t\tconversion.for( 'upcast' ).add( skipEmptyTableRow() );\n\n\t\tconversion.for( 'downcast' ).elementToElement( {\n\t\t\tmodel: 'tableRow',\n\t\t\tview: downcastRow()\n\t\t} );\n\n\t\t// Table cell conversion.\n\t\tconversion.for( 'upcast' ).elementToElement( { model: 'tableCell', view: 'td' } );\n\t\tconversion.for( 'upcast' ).elementToElement( { model: 'tableCell', view: 'th' } );\n\t\tconversion.for( 'upcast' ).add( ensureParagraphInTableCell( 'td' ) );\n\t\tconversion.for( 'upcast' ).add( ensureParagraphInTableCell( 'th' ) );\n\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'tableCell',\n\t\t\tview: downcastCell( { asWidget: true } )\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'tableCell',\n\t\t\tview: downcastCell()\n\t\t} );\n\n\t\t// Duplicates code - needed to properly refresh paragraph inside a table cell.\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'paragraph',\n\t\t\tview: convertParagraphInTableCell( { asWidget: true } ),\n\t\t\tconverterPriority: 'high'\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'paragraph',\n\t\t\tview: convertParagraphInTableCell(),\n\t\t\tconverterPriority: 'high'\n\t\t} );\n\n\t\t// Table attributes conversion.\n\t\tconversion.for( 'downcast' ).attributeToAttribute( { model: 'colspan', view: 'colspan' } );\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tmodel: { key: 'colspan', value: upcastCellSpan( 'colspan' ) },\n\t\t\tview: 'colspan'\n\t\t} );\n\n\t\tconversion.for( 'downcast' ).attributeToAttribute( { model: 'rowspan', view: 'rowspan' } );\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tmodel: { key: 'rowspan', value: upcastCellSpan( 'rowspan' ) },\n\t\t\tview: 'rowspan'\n\t\t} );\n\n\t\t// Manually adjust model position mappings in a special case, when a table cell contains a paragraph, which is bound\n\t\t// to its parent (to the table cell). This custom model-to-view position mapping is necessary in data pipeline only,\n\t\t// because only during this conversion a paragraph can be bound to its parent.\n\t\teditor.data.mapper.on( 'modelToViewPosition', mapTableCellModelPositionToView() );\n\n\t\t// Define the config.\n\t\teditor.config.define( 'table.defaultHeadings.rows', 0 );\n\t\teditor.config.define( 'table.defaultHeadings.columns', 0 );\n\n\t\t// Define all the commands.\n\t\teditor.commands.add( 'insertTable', new InsertTableCommand( editor ) );\n\t\teditor.commands.add( 'insertTableRowAbove', new InsertRowCommand( editor, { order: 'above' } ) );\n\t\teditor.commands.add( 'insertTableRowBelow', new InsertRowCommand( editor, { order: 'below' } ) );\n\t\teditor.commands.add( 'insertTableColumnLeft', new InsertColumnCommand( editor, { order: 'left' } ) );\n\t\teditor.commands.add( 'insertTableColumnRight', new InsertColumnCommand( editor, { order: 'right' } ) );\n\n\t\teditor.commands.add( 'removeTableRow', new RemoveRowCommand( editor ) );\n\t\teditor.commands.add( 'removeTableColumn', new RemoveColumnCommand( editor ) );\n\n\t\teditor.commands.add( 'splitTableCellVertically', new SplitCellCommand( editor, { direction: 'vertically' } ) );\n\t\teditor.commands.add( 'splitTableCellHorizontally', new SplitCellCommand( editor, { direction: 'horizontally' } ) );\n\n\t\teditor.commands.add( 'mergeTableCells', new MergeCellsCommand( editor ) );\n\n\t\teditor.commands.add( 'mergeTableCellRight', new MergeCellCommand( editor, { direction: 'right' } ) );\n\t\teditor.commands.add( 'mergeTableCellLeft', new MergeCellCommand( editor, { direction: 'left' } ) );\n\t\teditor.commands.add( 'mergeTableCellDown', new MergeCellCommand( editor, { direction: 'down' } ) );\n\t\teditor.commands.add( 'mergeTableCellUp', new MergeCellCommand( editor, { direction: 'up' } ) );\n\n\t\teditor.commands.add( 'setTableColumnHeader', new SetHeaderColumnCommand( editor ) );\n\t\teditor.commands.add( 'setTableRowHeader', new SetHeaderRowCommand( editor ) );\n\n\t\teditor.commands.add( 'selectTableRow', new SelectRowCommand( editor ) );\n\t\teditor.commands.add( 'selectTableColumn', new SelectColumnCommand( editor ) );\n\n\t\tinjectTableLayoutPostFixer( model );\n\t\tinjectTableCellParagraphPostFixer( model );\n\n\t\tthis.listenTo( model.document, 'change:data', () => {\n\t\t\ttableHeadingsRefreshHandler( model, editor.editing );\n\t\t\ttableCellRefreshHandler( model, editor.editing );\n\t\t} );\n\t}\n}\n\n// Creates a mapper callback to adjust model position mappings in a table cell containing a paragraph, which is bound to its parent\n// (to the table cell). Only positions after this paragraph have to be adjusted, because after binding this paragraph to the table cell,\n// elements located after this paragraph would point either to a non-existent offset inside `tableCell` (if paragraph is empty), or after\n// the first character of the paragraph's text. See https://github.com/ckeditor/ckeditor5/issues/10116.\n//\n// <tableCell><paragraph></paragraph>^</tableCell> -> <td>^&nbsp;</td>\n//\n// <tableCell><paragraph>foobar</paragraph>^</tableCell> -> <td>foobar^</td>\n//\n// @returns {Function}\nfunction mapTableCellModelPositionToView() {\n\treturn ( evt, data ) => {\n\t\tconst modelParent = data.modelPosition.parent;\n\t\tconst modelNodeBefore = data.modelPosition.nodeBefore;\n\n\t\tif ( !modelParent.is( 'element', 'tableCell' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !modelNodeBefore || !modelNodeBefore.is( 'element', 'paragraph' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewNodeBefore = data.mapper.toViewElement( modelNodeBefore );\n\t\tconst viewParent = data.mapper.toViewElement( modelParent );\n\n\t\tif ( viewNodeBefore === viewParent ) {\n\t\t\t// Since the paragraph has already been bound to its parent, update the current position in the model with paragraph's\n\t\t\t// max offset, so it points to the place which should normally (in all other cases) be the end position of this paragraph.\n\t\t\tdata.viewPosition = data.mapper.findPositionIn( viewParent, modelNodeBefore.maxOffset );\n\t\t}\n\t};\n}\n\n// Returns fixed colspan and rowspan attrbutes values.\n//\n// @private\n// @param {String} type colspan or rowspan.\n// @returns {Function} conversion value function.\nfunction upcastCellSpan( type ) {\n\treturn cell => {\n\t\tconst span = parseInt( cell.getAttribute( type ) );\n\n\t\tif ( Number.isNaN( span ) || span <= 0 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn span;\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-heading-rows-refresh-post-fixer\n */\n\nimport TableWalker from '../tablewalker';\n\n/**\n * A table headings refresh handler which marks the table cells or rows in the differ to have it re-rendered\n * if the headings attribute changed.\n *\n * Table heading rows and heading columns are represented in the model by a `headingRows` and `headingColumns` attributes.\n *\n * When table headings attribute changes, all the cells/rows are marked to re-render to change between `<td>` and `<th>`.\n *\n * @param {module:engine/model/model~Model} model\n * @param {module:engine/controller/editingcontroller~EditingController} editing\n */\nexport default function tableHeadingsRefreshHandler( model, editing ) {\n\tconst differ = model.document.differ;\n\n\tfor ( const change of differ.getChanges() ) {\n\t\tlet table;\n\t\tlet isRowChange = false;\n\n\t\tif ( change.type == 'attribute' ) {\n\t\t\tconst element = change.range.start.nodeAfter;\n\n\t\t\tif ( !element || !element.is( 'element', 'table' ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( change.attributeKey != 'headingRows' && change.attributeKey != 'headingColumns' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\ttable = element;\n\t\t\tisRowChange = change.attributeKey == 'headingRows';\n\t\t} else if ( change.name == 'tableRow' || change.name == 'tableCell' ) {\n\t\t\ttable = change.position.findAncestor( 'table' );\n\t\t\tisRowChange = change.name == 'tableRow';\n\t\t}\n\n\t\tif ( !table ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\t\tconst headingColumns = table.getAttribute( 'headingColumns' ) || 0;\n\n\t\tconst tableWalker = new TableWalker( table );\n\n\t\tfor ( const tableSlot of tableWalker ) {\n\t\t\tconst isHeading = tableSlot.row < headingRows || tableSlot.column < headingColumns;\n\t\t\tconst expectedElementName = isHeading ? 'th' : 'td';\n\n\t\t\tconst viewElement = editing.mapper.toViewElement( tableSlot.cell );\n\n\t\t\tif ( viewElement && viewElement.is( 'element' ) && viewElement.name != expectedElementName ) {\n\t\t\t\tediting.reconvertItem( isRowChange ? tableSlot.cell.parent : tableSlot.cell );\n\t\t\t}\n\t\t}\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./inserttable.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/ui/inserttableview\n */\n\nimport { View, ButtonView, addKeyboardHandlingForGrid } from 'ckeditor5/src/ui';\n\nimport { KeystrokeHandler, FocusTracker } from 'ckeditor5/src/utils';\n\nimport './../../theme/inserttable.css';\n\n/**\n * The table size view.\n *\n * It renders a 10x10 grid to choose the inserted table size.\n *\n * @extends module:ui/view~View\n * @implements module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable\n */\nexport default class InsertTableView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * A collection of table size box items.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.items = this._createGridCollection();\n\n\t\t/**\n\t\t * Listen to `keydown` events fired in this view's main element.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokeHandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the grid.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * The currently selected number of rows of the new table.\n\t\t *\n\t\t * @observable\n\t\t * @member {Number} #rows\n\t\t */\n\t\tthis.set( 'rows', 0 );\n\n\t\t/**\n\t\t * The currently selected number of columns of the new table.\n\t\t *\n\t\t * @observable\n\t\t * @member {Number} #columns\n\t\t */\n\t\tthis.set( 'columns', 0 );\n\n\t\t/**\n\t\t * The label text displayed under the boxes.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #label\n\t\t */\n\t\tthis.bind( 'label' )\n\t\t\t.to( this, 'columns', this, 'rows', ( columns, rows ) => `${ rows } × ${ columns }` );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [ 'ck' ]\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [ 'ck-insert-table-dropdown__grid' ]\n\t\t\t\t\t},\n\t\t\t\t\ton: {\n\t\t\t\t\t\t'mouseover@.ck-insert-table-dropdown-grid-box': bind.to( 'boxover' )\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.items\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-insert-table-dropdown__label'\n\t\t\t\t\t\t],\n\t\t\t\t\t\t'aria-hidden': true\n\t\t\t\t\t},\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\ttext: bind.to( 'label' )\n\t\t\t\t\t\t}\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t],\n\n\t\t\ton: {\n\t\t\t\tmousedown: bind.to( evt => {\n\t\t\t\t\tevt.preventDefault();\n\t\t\t\t} ),\n\n\t\t\t\tclick: bind.to( () => {\n\t\t\t\t\tthis.fire( 'execute' );\n\t\t\t\t} )\n\t\t\t}\n\t\t} );\n\n\t\t// #rows and #columns are set via changes to #focusTracker on mouse over.\n\t\tthis.on( 'boxover', ( evt, domEvt ) => {\n\t\t\tconst { row, column } = domEvt.target.dataset;\n\t\t\tthis.items.get( ( parseInt( row, 10 ) - 1 ) * 10 + ( parseInt( column, 10 ) - 1 ) ).focus();\n\t\t} );\n\n\t\t// This allows the #rows and #columns to be updated when:\n\t\t// * the user navigates the grid using the keyboard,\n\t\t// * the user moves the mouse over grid items.\n\t\tthis.focusTracker.on( 'change:focusedElement', ( evt, name, focusedElement ) => {\n\t\t\tif ( !focusedElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { row, column } = focusedElement.dataset;\n\n\t\t\t// As row & column indexes are zero-based transform it to number of selected rows & columns.\n\t\t\tthis.set( {\n\t\t\t\trows: parseInt( row ),\n\t\t\t\tcolumns: parseInt( column )\n\t\t\t} );\n\t\t} );\n\n\t\tthis.on( 'change:columns', () => this._highlightGridBoxes() );\n\t\tthis.on( 'change:rows', () => this._highlightGridBoxes() );\n\t}\n\n\trender() {\n\t\tsuper.render();\n\n\t\taddKeyboardHandlingForGrid( {\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tgridItems: this.items,\n\t\t\tnumberOfColumns: 10,\n\t\t\tuiLanguageDirection: this.locale && this.locale.uiLanguageDirection\n\t\t} );\n\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element );\n\t\t}\n\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tfocus() {\n\t\tthis.items.get( 0 ).focus();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tfocusLast() {\n\t\tthis.items.get( 0 ).focus();\n\t}\n\n\t/**\n\t * Highlights grid boxes depending on rows and columns selected.\n\t *\n\t * @private\n\t */\n\t_highlightGridBoxes() {\n\t\tconst rows = this.rows;\n\t\tconst columns = this.columns;\n\n\t\tthis.items.map( ( boxView, index ) => {\n\t\t\t// Translate box index to the row & column index.\n\t\t\tconst itemRow = Math.floor( index / 10 );\n\t\t\tconst itemColumn = index % 10;\n\n\t\t\t// Grid box is highlighted when its row & column index belongs to selected number of rows & columns.\n\t\t\tconst isOn = itemRow < rows && itemColumn < columns;\n\n\t\t\tboxView.set( 'isOn', isOn );\n\t\t} );\n\t}\n\n\t/**\n\t * Creates a new Button for the grid.\n\t *\n\t * @private\n\t * @param {module:utils/locale~Locale} locale The locale instance.\n\t * @param {Number} row Row number.\n\t * @param {Number} column Column number.\n\t * @param {String} label The grid button label.\n\t * @returns {module:ui/button/buttonview~ButtonView}\n\t */\n\t_createGridButton( locale, row, column, label ) {\n\t\tconst button = new ButtonView( locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\tclass: 'ck-insert-table-dropdown-grid-box'\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\t'data-row': row,\n\t\t\t\t'data-column': column\n\t\t\t}\n\t\t} );\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * @private\n\t * @returns {module:ui/viewcollection~ViewCollection} A view collection containing boxes to be placed in a table grid.\n\t */\n\t_createGridCollection() {\n\t\tconst boxes = [];\n\n\t\t// Add grid boxes to table selection view.\n\t\tfor ( let index = 0; index < 100; index++ ) {\n\t\t\tconst row = Math.floor( index / 10 );\n\t\t\tconst column = index % 10;\n\t\t\tconst label = `${ row + 1 } × ${ column + 1 }`;\n\n\t\t\tboxes.push( this._createGridButton( this.locale, row + 1, column + 1, label ) );\n\t\t}\n\n\t\treturn this.createCollection( boxes );\n\t}\n\n\t/**\n\t * Fired when the mouse hover over one of the {@link #items child grid boxes}.\n\t *\n\t * @event boxover\n\t */\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { addListToDropdown, createDropdown, Model, SplitButtonView, SwitchButtonView } from 'ckeditor5/src/ui';\nimport { Collection } from 'ckeditor5/src/utils';\n\nimport InsertTableView from './ui/inserttableview';\n\nimport tableIcon from './../theme/icons/table.svg';\nimport tableColumnIcon from './../theme/icons/table-column.svg';\nimport tableRowIcon from './../theme/icons/table-row.svg';\nimport tableMergeCellIcon from './../theme/icons/table-merge-cell.svg';\n\n/**\n * The table UI plugin. It introduces:\n *\n * * The `'insertTable'` dropdown,\n * * The `'tableColumn'` dropdown,\n * * The `'tableRow'` dropdown,\n * * The `'mergeTableCells'` split button.\n *\n * The `'tableColumn'`, `'tableRow'` and `'mergeTableCells'` dropdowns work best with {@link module:table/tabletoolbar~TableToolbar}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = this.editor.t;\n\t\tconst contentLanguageDirection = editor.locale.contentLanguageDirection;\n\t\tconst isContentLtr = contentLanguageDirection === 'ltr';\n\n\t\teditor.ui.componentFactory.add( 'insertTable', locale => {\n\t\t\tconst command = editor.commands.get( 'insertTable' );\n\t\t\tconst dropdownView = createDropdown( locale );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\t// Decorate dropdown's button.\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\ticon: tableIcon,\n\t\t\t\tlabel: t( 'Insert table' ),\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tlet insertTableView;\n\n\t\t\tdropdownView.on( 'change:isOpen', () => {\n\t\t\t\tif ( insertTableView ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Prepare custom view for dropdown's panel.\n\t\t\t\tinsertTableView = new InsertTableView( locale );\n\t\t\t\tdropdownView.panelView.children.add( insertTableView );\n\n\t\t\t\tinsertTableView.delegate( 'execute' ).to( dropdownView );\n\n\t\t\t\tdropdownView.on( 'execute', () => {\n\t\t\t\t\teditor.execute( 'insertTable', { rows: insertTableView.rows, columns: insertTableView.columns } );\n\t\t\t\t\teditor.editing.view.focus();\n\t\t\t\t} );\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\n\t\teditor.ui.componentFactory.add( 'tableColumn', locale => {\n\t\t\tconst options = [\n\t\t\t\t{\n\t\t\t\t\ttype: 'switchbutton',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'setTableColumnHeader',\n\t\t\t\t\t\tlabel: t( 'Header column' ),\n\t\t\t\t\t\tbindIsOn: true\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{ type: 'separator' },\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'insertTableColumnLeft' : 'insertTableColumnRight',\n\t\t\t\t\t\tlabel: t( 'Insert column left' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'insertTableColumnRight' : 'insertTableColumnLeft',\n\t\t\t\t\t\tlabel: t( 'Insert column right' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'removeTableColumn',\n\t\t\t\t\t\tlabel: t( 'Delete column' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'selectTableColumn',\n\t\t\t\t\t\tlabel: t( 'Select column' )\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t];\n\n\t\t\treturn this._prepareDropdown( t( 'Column' ), tableColumnIcon, options, locale );\n\t\t} );\n\n\t\teditor.ui.componentFactory.add( 'tableRow', locale => {\n\t\t\tconst options = [\n\t\t\t\t{\n\t\t\t\t\ttype: 'switchbutton',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'setTableRowHeader',\n\t\t\t\t\t\tlabel: t( 'Header row' ),\n\t\t\t\t\t\tbindIsOn: true\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{ type: 'separator' },\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'insertTableRowAbove',\n\t\t\t\t\t\tlabel: t( 'Insert row above' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'insertTableRowBelow',\n\t\t\t\t\t\tlabel: t( 'Insert row below' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'removeTableRow',\n\t\t\t\t\t\tlabel: t( 'Delete row' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'selectTableRow',\n\t\t\t\t\t\tlabel: t( 'Select row' )\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t];\n\n\t\t\treturn this._prepareDropdown( t( 'Row' ), tableRowIcon, options, locale );\n\t\t} );\n\n\t\teditor.ui.componentFactory.add( 'mergeTableCells', locale => {\n\t\t\tconst options = [\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'mergeTableCellUp',\n\t\t\t\t\t\tlabel: t( 'Merge cell up' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'mergeTableCellRight' : 'mergeTableCellLeft',\n\t\t\t\t\t\tlabel: t( 'Merge cell right' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'mergeTableCellDown',\n\t\t\t\t\t\tlabel: t( 'Merge cell down' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'mergeTableCellLeft' : 'mergeTableCellRight',\n\t\t\t\t\t\tlabel: t( 'Merge cell left' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{ type: 'separator' },\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'splitTableCellVertically',\n\t\t\t\t\t\tlabel: t( 'Split cell vertically' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'splitTableCellHorizontally',\n\t\t\t\t\t\tlabel: t( 'Split cell horizontally' )\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t];\n\n\t\t\treturn this._prepareMergeSplitButtonDropdown( t( 'Merge cells' ), tableMergeCellIcon, options, locale );\n\t\t} );\n\t}\n\n\t/**\n\t * Creates a dropdown view from a set of options.\n\t *\n\t * @private\n\t * @param {String} label The dropdown button label.\n\t * @param {String} icon An icon for the dropdown button.\n\t * @param {Array.<module:ui/dropdown/utils~ListDropdownItemDefinition>} options The list of options for the dropdown.\n\t * @param {module:utils/locale~Locale} locale\n\t * @returns {module:ui/dropdown/dropdownview~DropdownView}\n\t */\n\t_prepareDropdown( label, icon, options, locale ) {\n\t\tconst editor = this.editor;\n\t\tconst dropdownView = createDropdown( locale );\n\t\tconst commands = this._fillDropdownWithListOptions( dropdownView, options );\n\n\t\t// Decorate dropdown's button.\n\t\tdropdownView.buttonView.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\t// Make dropdown button disabled when all options are disabled.\n\t\tdropdownView.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => {\n\t\t\treturn areEnabled.some( isEnabled => isEnabled );\n\t\t} );\n\n\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\teditor.execute( evt.source.commandName );\n\n\t\t\t// Toggling a switch button view should not move the focus to the editable.\n\t\t\tif ( !( evt.source instanceof SwitchButtonView ) ) {\n\t\t\t\teditor.editing.view.focus();\n\t\t\t}\n\t\t} );\n\n\t\treturn dropdownView;\n\t}\n\n\t/**\n\t * Creates a dropdown view with a {@link module:ui/dropdown/button/splitbuttonview~SplitButtonView} for\n\t * merge (and split)–related commands.\n\t *\n\t * @private\n\t * @param {String} label The dropdown button label.\n\t * @param {String} icon An icon for the dropdown button.\n\t * @param {Array.<module:ui/dropdown/utils~ListDropdownItemDefinition>} options The list of options for the dropdown.\n\t * @param {module:utils/locale~Locale} locale\n\t * @returns {module:ui/dropdown/dropdownview~DropdownView}\n\t */\n\t_prepareMergeSplitButtonDropdown( label, icon, options, locale ) {\n\t\tconst editor = this.editor;\n\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\tconst mergeCommandName = 'mergeTableCells';\n\n\t\t// Main command.\n\t\tconst mergeCommand = editor.commands.get( mergeCommandName );\n\n\t\t// Subcommands in the dropdown.\n\t\tconst commands = this._fillDropdownWithListOptions( dropdownView, options );\n\n\t\tdropdownView.buttonView.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true,\n\t\t\tisEnabled: true\n\t\t} );\n\n\t\t// Make dropdown button disabled when all options are disabled together with the main command.\n\t\tdropdownView.bind( 'isEnabled' ).toMany( [ mergeCommand, ...commands ], 'isEnabled', ( ...areEnabled ) => {\n\t\t\treturn areEnabled.some( isEnabled => isEnabled );\n\t\t} );\n\n\t\t// Merge selected table cells when the main part of the split button is clicked.\n\t\tthis.listenTo( dropdownView.buttonView, 'execute', () => {\n\t\t\teditor.execute( mergeCommandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\t// Execute commands for events coming from the list in the dropdown panel.\n\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\teditor.execute( evt.source.commandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn dropdownView;\n\t}\n\n\t/**\n\t * Injects a {@link module:ui/list/listview~ListView} into the passed dropdown with buttons\n\t * which execute editor commands as configured in passed options.\n\t *\n\t * @private\n\t * @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView\n\t * @param {Array.<module:ui/dropdown/utils~ListDropdownItemDefinition>} options The list of options for the dropdown.\n\t * @returns {Array.<module:core/command~Command>} Commands the list options are interacting with.\n\t */\n\t_fillDropdownWithListOptions( dropdownView, options ) {\n\t\tconst editor = this.editor;\n\t\tconst commands = [];\n\t\tconst itemDefinitions = new Collection();\n\n\t\tfor ( const option of options ) {\n\t\t\taddListOption( option, editor, commands, itemDefinitions );\n\t\t}\n\n\t\taddListToDropdown( dropdownView, itemDefinitions, editor.ui.componentFactory );\n\n\t\treturn commands;\n\t}\n}\n\n// Adds an option to a list view.\n//\n// @param {module:table/tableui~DropdownOption} option A configuration option.\n// @param {module:core/editor/editor~Editor} editor\n// @param {Array.<module:core/command~Command>} commands The list of commands to update.\n// @param {Iterable.<module:ui/dropdown/utils~ListDropdownItemDefinition>} itemDefinitions\n// A collection of dropdown items to update with the given option.\nfunction addListOption( option, editor, commands, itemDefinitions ) {\n\tconst model = option.model = new Model( option.model );\n\tconst { commandName, bindIsOn } = option.model;\n\n\tif ( option.type === 'button' || option.type === 'switchbutton' ) {\n\t\tconst command = editor.commands.get( commandName );\n\n\t\tcommands.push( command );\n\n\t\tmodel.set( { commandName } );\n\n\t\tmodel.bind( 'isEnabled' ).to( command );\n\n\t\tif ( bindIsOn ) {\n\t\t\tmodel.bind( 'isOn' ).to( command, 'value' );\n\t\t}\n\t}\n\n\tmodel.set( {\n\t\twithText: true\n\t} );\n\n\titemDefinitions.add( option );\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 6v3h4V6H3zm0 4v3h4v-3H3zm0 4v3h4v-3H3zm5 3h4v-3H8v3zm5 0h4v-3h-4v3zm4-4v-3h-4v3h4zm0-4V6h-4v3h4zm1.5 8a1.5 1.5 0 0 1-1.5 1.5H3A1.5 1.5 0 0 1 1.5 17V4c.222-.863 1.068-1.5 2-1.5h13c.932 0 1.778.637 2 1.5v13zM12 13v-3H8v3h4zm0-4V6H8v3h4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z\\\" opacity=\\\".6\\\"/><path d=\\\"M18 7v1H2V7h16zm0 5v1H2v-1h16z\\\" opacity=\\\".6\\\"/><path d=\\\"M14 1v18a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V1a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1zm-2 1H8v4h4V2zm0 6H8v4h4V8zm0 6H8v4h4v-4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z\\\" opacity=\\\".6\\\"/><path d=\\\"M7 2h1v16H7V2zm5 0h1v16h-1V2z\\\" opacity=\\\".6\\\"/><path d=\\\"M1 6h18a1 1 0 0 1 1 1v6a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1zm1 2v4h4V8H2zm6 0v4h4V8H8zm6 0v4h4V8h-4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z\\\" opacity=\\\".6\\\"/><path d=\\\"M7 2h1v16H7V2zm5 0h1v7h-1V2zm6 5v1H2V7h16zM8 12v1H2v-1h6z\\\" opacity=\\\".6\\\"/><path d=\\\"M7 7h12a1 1 0 0 1 1 1v11a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V8a1 1 0 0 1 1-1zm1 2v9h10V9H8z\\\"/></svg>\";","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableselection.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableselection\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\nimport TableWalker from './tablewalker';\nimport TableUtils from './tableutils';\n\nimport { cropTableToDimensions, adjustLastRowIndex, adjustLastColumnIndex } from './utils/structure';\n\nimport '../theme/tableselection.css';\n\n/**\n * This plugin enables the advanced table cells, rows and columns selection.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableSelection extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableSelection';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableUtils, TableUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\n\t\tthis.listenTo( model, 'deleteContent', ( evt, args ) => this._handleDeleteContent( evt, args ), { priority: 'high' } );\n\t\tthis.listenTo( view.document, 'insertText', ( evt, data ) => this._handleInsertTextEvent( evt, data ), { priority: 'high' } );\n\n\t\tthis._defineSelectionConverter();\n\t\tthis._enablePluginDisabling(); // sic!\n\t}\n\n\t/**\n\t * Returns the currently selected table cells or `null` if it is not a table cells selection.\n\t *\n\t * @returns {Array.<module:engine/model/element~Element>|null}\n\t */\n\tgetSelectedTableCells() {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst selection = this.editor.model.document.selection;\n\n\t\tconst selectedCells = tableUtils.getSelectedTableCells( selection );\n\n\t\tif ( selectedCells.length == 0 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// This should never happen, but let's know if it ever happens.\n\t\t// @if CK_DEBUG //\t/* istanbul ignore next */\n\t\t// @if CK_DEBUG //\tif ( selectedCells.length != selection.rangeCount ) {\n\t\t// @if CK_DEBUG //\t\tconsole.warn( 'Mixed selection warning. The selection contains table cells and some other ranges.' );\n\t\t// @if CK_DEBUG //\t}\n\n\t\treturn selectedCells;\n\t}\n\n\t/**\n\t * Returns the selected table fragment as a document fragment.\n\t *\n\t * @returns {module:engine/model/documentfragment~DocumentFragment|null}\n\t */\n\tgetSelectionAsFragment() {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst selectedCells = this.getSelectedTableCells();\n\n\t\tif ( !selectedCells ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.editor.model.change( writer => {\n\t\t\tconst documentFragment = writer.createDocumentFragment();\n\n\t\t\tconst { first: firstColumn, last: lastColumn } = tableUtils.getColumnIndexes( selectedCells );\n\t\t\tconst { first: firstRow, last: lastRow } = tableUtils.getRowIndexes( selectedCells );\n\n\t\t\tconst sourceTable = selectedCells[ 0 ].findAncestor( 'table' );\n\n\t\t\tlet adjustedLastRow = lastRow;\n\t\t\tlet adjustedLastColumn = lastColumn;\n\n\t\t\t// If the selection is rectangular there could be a case of all cells in the last row/column spanned over\n\t\t\t// next row/column so the real lastRow/lastColumn should be updated.\n\t\t\tif ( tableUtils.isSelectionRectangular( selectedCells ) ) {\n\t\t\t\tconst dimensions = {\n\t\t\t\t\tfirstColumn,\n\t\t\t\t\tlastColumn,\n\t\t\t\t\tfirstRow,\n\t\t\t\t\tlastRow\n\t\t\t\t};\n\n\t\t\t\tadjustedLastRow = adjustLastRowIndex( sourceTable, dimensions );\n\t\t\t\tadjustedLastColumn = adjustLastColumnIndex( sourceTable, dimensions );\n\t\t\t}\n\n\t\t\tconst cropDimensions = {\n\t\t\t\tstartRow: firstRow,\n\t\t\t\tstartColumn: firstColumn,\n\t\t\t\tendRow: adjustedLastRow,\n\t\t\t\tendColumn: adjustedLastColumn\n\t\t\t};\n\n\t\t\tconst table = cropTableToDimensions( sourceTable, cropDimensions, writer );\n\n\t\t\twriter.insert( table, documentFragment, 0 );\n\n\t\t\treturn documentFragment;\n\t\t} );\n\t}\n\n\t/**\n\t * Sets the model selection based on given anchor and target cells (can be the same cell).\n\t * Takes care of setting the backward flag.\n\t *\n\t *\t\tconst modelRoot = editor.model.document.getRoot();\n\t *\t\tconst firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );\n\t *\t\tconst lastCell = modelRoot.getNodeByPath( [ 0, 0, 1 ] );\n\t *\n\t *\t\tconst tableSelection = editor.plugins.get( 'TableSelection' );\n\t *\t\ttableSelection.setCellSelection( firstCell, lastCell );\n\t *\n\t * @param {module:engine/model/element~Element} anchorCell\n\t * @param {module:engine/model/element~Element} targetCell\n\t */\n\tsetCellSelection( anchorCell, targetCell ) {\n\t\tconst cellsToSelect = this._getCellsToSelect( anchorCell, targetCell );\n\n\t\tthis.editor.model.change( writer => {\n\t\t\twriter.setSelection(\n\t\t\t\tcellsToSelect.cells.map( cell => writer.createRangeOn( cell ) ),\n\t\t\t\t{ backward: cellsToSelect.backward }\n\t\t\t);\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the focus cell from the current selection.\n\t *\n\t * @returns {module:engine/model/element~Element}\n\t */\n\tgetFocusCell() {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst focusCellRange = [ ...selection.getRanges() ].pop();\n\t\tconst element = focusCellRange.getContainedElement();\n\n\t\tif ( element && element.is( 'element', 'tableCell' ) ) {\n\t\t\treturn element;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the anchor cell from the current selection.\n\t *\n\t * @returns {module:engine/model/element~Element} anchorCell\n\t */\n\tgetAnchorCell() {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst anchorCellRange = first( selection.getRanges() );\n\t\tconst element = anchorCellRange.getContainedElement();\n\n\t\tif ( element && element.is( 'element', 'tableCell' ) ) {\n\t\t\treturn element;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Defines a selection converter which marks the selected cells with a specific class.\n\t *\n\t * The real DOM selection is put in the last cell. Since the order of ranges is dependent on whether the\n\t * selection is backward or not, the last cell will usually be close to the \"focus\" end of the selection\n\t * (a selection has anchor and focus).\n\t *\n\t * The real DOM selection is then hidden with CSS.\n\t *\n\t * @private\n\t */\n\t_defineSelectionConverter() {\n\t\tconst editor = this.editor;\n\t\tconst highlighted = new Set();\n\n\t\teditor.conversion.for( 'editingDowncast' ).add( dispatcher => dispatcher.on( 'selection', ( evt, data, conversionApi ) => {\n\t\t\tconst viewWriter = conversionApi.writer;\n\n\t\t\tclearHighlightedTableCells( viewWriter );\n\n\t\t\tconst selectedCells = this.getSelectedTableCells();\n\n\t\t\tif ( !selectedCells ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tfor ( const tableCell of selectedCells ) {\n\t\t\t\tconst viewElement = conversionApi.mapper.toViewElement( tableCell );\n\n\t\t\t\tviewWriter.addClass( 'ck-editor__editable_selected', viewElement );\n\t\t\t\thighlighted.add( viewElement );\n\t\t\t}\n\n\t\t\tconst lastViewCell = conversionApi.mapper.toViewElement( selectedCells[ selectedCells.length - 1 ] );\n\t\t\tviewWriter.setSelection( lastViewCell, 0 );\n\t\t}, { priority: 'lowest' } ) );\n\n\t\tfunction clearHighlightedTableCells( writer ) {\n\t\t\tfor ( const previouslyHighlighted of highlighted ) {\n\t\t\t\twriter.removeClass( 'ck-editor__editable_selected', previouslyHighlighted );\n\t\t\t}\n\n\t\t\thighlighted.clear();\n\t\t}\n\t}\n\n\t/**\n\t * Creates a listener that reacts to changes in {@link #isEnabled} and, if the plugin was disabled,\n\t * it collapses the multi-cell selection to a regular selection placed inside a table cell.\n\t *\n\t * This listener helps features that disable the table selection plugin bring the selection\n\t * to a clear state they can work with (for instance, because they don't support multiple cell selection).\n\t */\n\t_enablePluginDisabling() {\n\t\tconst editor = this.editor;\n\n\t\tthis.on( 'change:isEnabled', () => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tconst selectedCells = this.getSelectedTableCells();\n\n\t\t\t\tif ( !selectedCells ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\tconst position = writer.createPositionAt( selectedCells[ 0 ], 0 );\n\t\t\t\t\tconst range = editor.model.schema.getNearestSelectionRange( position );\n\n\t\t\t\t\twriter.setSelection( range );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Overrides the default `model.deleteContent()` behavior over a selected table fragment.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} event\n\t * @param {Array.<*>} args Delete content method arguments.\n\t */\n\t_handleDeleteContent( event, args ) {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst [ selection, options ] = args;\n\t\tconst model = this.editor.model;\n\t\tconst isBackward = !options || options.direction == 'backward';\n\t\tconst selectedTableCells = tableUtils.getSelectedTableCells( selection );\n\n\t\tif ( !selectedTableCells.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tevent.stop();\n\n\t\tmodel.change( writer => {\n\t\t\tconst tableCellToSelect = selectedTableCells[ isBackward ? selectedTableCells.length - 1 : 0 ];\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tfor ( const tableCell of selectedTableCells ) {\n\t\t\t\t\tmodel.deleteContent( writer.createSelection( tableCell, 'in' ) );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tconst rangeToSelect = model.schema.getNearestSelectionRange( writer.createPositionAt( tableCellToSelect, 0 ) );\n\n\t\t\t// Note: we ignore the case where rangeToSelect may be null because deleteContent() will always (unless someone broke it)\n\t\t\t// create an empty paragraph to accommodate the selection.\n\n\t\t\tif ( selection.is( 'documentSelection' ) ) {\n\t\t\t\twriter.setSelection( rangeToSelect );\n\t\t\t} else {\n\t\t\t\tselection.setTo( rangeToSelect );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * This handler makes it possible to remove the content of all selected cells by starting to type.\n\t * If you take a look at {@link #_defineSelectionConverter} you will find out that despite the multi-cell selection being set\n\t * in the model, the view selection is collapsed in the last cell (because most browsers are unable to render multi-cell selections;\n\t * yes, it's a hack).\n\t *\n\t * When multiple cells are selected in the model and the user starts to type, the\n\t * {@link module:engine/view/document~Document#event:insertText} event carries information provided by the\n\t * beforeinput DOM  event, that in turn only knows about this collapsed DOM selection in the last cell.\n\t *\n\t * As a result, the selected cells have no chance to be cleaned up. To fix this, this listener intercepts\n\t * the event and injects the custom view selection in the data that translates correctly to the actual state\n\t * of the multi-cell selection in the model.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} event\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} data Insert text event data.\n\t */\n\t_handleInsertTextEvent( evt, data ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst selectedCells = this.getSelectedTableCells( modelSelection );\n\n\t\tif ( !selectedCells ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst view = editor.editing.view;\n\t\tconst mapper = editor.editing.mapper;\n\t\tconst viewRanges = selectedCells.map( tableCell => view.createRangeOn( mapper.toViewElement( tableCell ) ) );\n\n\t\tdata.selection = view.createSelection( viewRanges );\n\t}\n\n\t/**\n\t * Returns an array of table cells that should be selected based on the\n\t * given anchor cell and target (focus) cell.\n\t *\n\t * The cells are returned in a reverse direction if the selection is backward.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} anchorCell\n\t * @param {module:engine/model/element~Element} targetCell\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\t_getCellsToSelect( anchorCell, targetCell ) {\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst startLocation = tableUtils.getCellLocation( anchorCell );\n\t\tconst endLocation = tableUtils.getCellLocation( targetCell );\n\n\t\tconst startRow = Math.min( startLocation.row, endLocation.row );\n\t\tconst endRow = Math.max( startLocation.row, endLocation.row );\n\n\t\tconst startColumn = Math.min( startLocation.column, endLocation.column );\n\t\tconst endColumn = Math.max( startLocation.column, endLocation.column );\n\n\t\t// 2-dimensional array of the selected cells to ease flipping the order of cells for backward selections.\n\t\tconst selectionMap = new Array( endRow - startRow + 1 ).fill( null ).map( () => [] );\n\n\t\tconst walkerOptions = {\n\t\t\tstartRow,\n\t\t\tendRow,\n\t\t\tstartColumn,\n\t\t\tendColumn\n\t\t};\n\n\t\tfor ( const { row, cell } of new TableWalker( anchorCell.findAncestor( 'table' ), walkerOptions ) ) {\n\t\t\tselectionMap[ row - startRow ].push( cell );\n\t\t}\n\n\t\tconst flipVertically = endLocation.row < startLocation.row;\n\t\tconst flipHorizontally = endLocation.column < startLocation.column;\n\n\t\tif ( flipVertically ) {\n\t\t\tselectionMap.reverse();\n\t\t}\n\n\t\tif ( flipHorizontally ) {\n\t\t\tselectionMap.forEach( row => row.reverse() );\n\t\t}\n\n\t\treturn {\n\t\t\tcells: selectionMap.flat(),\n\t\t\tbackward: flipVertically || flipHorizontally\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableclipboard\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TableSelection from './tableselection';\nimport TableWalker from './tablewalker';\nimport TableUtils from './tableutils';\nimport {\n\tcropTableToDimensions,\n\tgetHorizontallyOverlappingCells,\n\tgetVerticallyOverlappingCells,\n\tremoveEmptyRowsColumns,\n\tsplitHorizontally,\n\tsplitVertically,\n\ttrimTableCellIfNeeded,\n\tadjustLastRowIndex,\n\tadjustLastColumnIndex\n} from './utils/structure';\n\n/**\n * This plugin adds support for copying/cutting/pasting fragments of tables.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableClipboard extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableClipboard';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableSelection, TableUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\tthis.listenTo( viewDocument, 'copy', ( evt, data ) => this._onCopyCut( evt, data ) );\n\t\tthis.listenTo( viewDocument, 'cut', ( evt, data ) => this._onCopyCut( evt, data ) );\n\t\tthis.listenTo( editor.model, 'insertContent', ( evt, args ) => this._onInsertContent( evt, ...args ), { priority: 'high' } );\n\n\t\tthis.decorate( '_replaceTableSlotCell' );\n\t}\n\n\t/**\n\t * Copies table content to a clipboard on \"copy\" & \"cut\" events.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} evt An object containing information about the handled event.\n\t * @param {Object} data Clipboard event data.\n\t */\n\t_onCopyCut( evt, data ) {\n\t\tconst tableSelection = this.editor.plugins.get( TableSelection );\n\n\t\tif ( !tableSelection.getSelectedTableCells() ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( evt.name == 'cut' && this.editor.isReadOnly ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdata.preventDefault();\n\t\tevt.stop();\n\n\t\tconst dataController = this.editor.data;\n\t\tconst viewDocument = this.editor.editing.view.document;\n\n\t\tconst content = dataController.toView( tableSelection.getSelectionAsFragment() );\n\n\t\tviewDocument.fire( 'clipboardOutput', {\n\t\t\tdataTransfer: data.dataTransfer,\n\t\t\tcontent,\n\t\t\tmethod: evt.name\n\t\t} );\n\t}\n\n\t/**\n\t * Overrides default {@link module:engine/model/model~Model#insertContent `model.insertContent()`} method to handle pasting table inside\n\t * selected table fragment.\n\t *\n\t * Depending on selected table fragment:\n\t * - If a selected table fragment is smaller than paste table it will crop pasted table to match dimensions.\n\t * - If dimensions are equal it will replace selected table fragment with a pasted table contents.\n\t *\n\t * @private\n\t * @param evt\n\t * @param {module:engine/model/documentfragment~DocumentFragment|module:engine/model/item~Item} content The content to insert.\n\t * @param {module:engine/model/selection~Selectable} [selectable=model.document.selection]\n\t * The selection into which the content should be inserted. If not provided the current model document selection will be used.\n\t */\n\t_onInsertContent( evt, content, selectable ) {\n\t\tif ( selectable && !selectable.is( 'documentSelection' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\n\t\t// We might need to crop table before inserting so reference might change.\n\t\tlet pastedTable = getTableIfOnlyTableInContent( content, model );\n\n\t\tif ( !pastedTable ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst selectedTableCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\n\t\tif ( !selectedTableCells.length ) {\n\t\t\tremoveEmptyRowsColumns( pastedTable, tableUtils );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Override default model.insertContent() handling at this point.\n\t\tevt.stop();\n\n\t\tmodel.change( writer => {\n\t\t\tconst pastedDimensions = {\n\t\t\t\twidth: tableUtils.getColumns( pastedTable ),\n\t\t\t\theight: tableUtils.getRows( pastedTable )\n\t\t\t};\n\n\t\t\t// Prepare the table for pasting.\n\t\t\tconst selection = prepareTableForPasting( selectedTableCells, pastedDimensions, writer, tableUtils );\n\n\t\t\t// Beyond this point we operate on a fixed content table with rectangular selection and proper last row/column values.\n\n\t\t\tconst selectionHeight = selection.lastRow - selection.firstRow + 1;\n\t\t\tconst selectionWidth = selection.lastColumn - selection.firstColumn + 1;\n\n\t\t\t// Crop pasted table if:\n\t\t\t// - Pasted table dimensions exceeds selection area.\n\t\t\t// - Pasted table has broken layout (ie some cells sticks out by the table dimensions established by the first and last row).\n\t\t\t//\n\t\t\t// Note: The table dimensions are established by the width of the first row and the total number of rows.\n\t\t\t// It is possible to programmatically create a table that has rows which would have cells anchored beyond first row width but\n\t\t\t// such table will not be created by other editing solutions.\n\t\t\tconst cropDimensions = {\n\t\t\t\tstartRow: 0,\n\t\t\t\tstartColumn: 0,\n\t\t\t\tendRow: Math.min( selectionHeight, pastedDimensions.height ) - 1,\n\t\t\t\tendColumn: Math.min( selectionWidth, pastedDimensions.width ) - 1\n\t\t\t};\n\n\t\t\tpastedTable = cropTableToDimensions( pastedTable, cropDimensions, writer );\n\n\t\t\t// Content table to which we insert a pasted table.\n\t\t\tconst selectedTable = selectedTableCells[ 0 ].findAncestor( 'table' );\n\n\t\t\tconst cellsToSelect = this._replaceSelectedCellsWithPasted( pastedTable, pastedDimensions, selectedTable, selection, writer );\n\n\t\t\tif ( this.editor.plugins.get( 'TableSelection' ).isEnabled ) {\n\t\t\t\t// Selection ranges must be sorted because the first and last selection ranges are considered\n\t\t\t\t// as anchor/focus cell ranges for multi-cell selection.\n\t\t\t\tconst selectionRanges = tableUtils.sortRanges( cellsToSelect.map( cell => writer.createRangeOn( cell ) ) );\n\n\t\t\t\twriter.setSelection( selectionRanges );\n\t\t\t} else {\n\t\t\t\t// Set selection inside first cell if multi-cell selection is disabled.\n\t\t\t\twriter.setSelection( cellsToSelect[ 0 ], 0 );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Replaces the part of selectedTable with pastedTable.\n\t *\n\t * @private\n\t * @param {module:engine/model/element~Element} pastedTable\n\t * @param {Object} pastedDimensions\n\t * @param {Number} pastedDimensions.height\n\t * @param {Number} pastedDimensions.width\n\t * @param {module:engine/model/element~Element} selectedTable\n\t * @param {Object} selection\n\t * @param {Number} selection.firstColumn\n\t * @param {Number} selection.firstRow\n\t * @param {Number} selection.lastColumn\n\t * @param {Number} selection.lastRow\n\t * @param {module:engine/model/writer~Writer} writer\n\t * @returns {Array.<module:engine/model/element~Element>}\n\t */\n\t_replaceSelectedCellsWithPasted( pastedTable, pastedDimensions, selectedTable, selection, writer ) {\n\t\tconst { width: pastedWidth, height: pastedHeight } = pastedDimensions;\n\n\t\t// Holds two-dimensional array that is addressed by [ row ][ column ] that stores cells anchored at given location.\n\t\tconst pastedTableLocationMap = createLocationMap( pastedTable, pastedWidth, pastedHeight );\n\n\t\tconst selectedTableMap = [ ...new TableWalker( selectedTable, {\n\t\t\tstartRow: selection.firstRow,\n\t\t\tendRow: selection.lastRow,\n\t\t\tstartColumn: selection.firstColumn,\n\t\t\tendColumn: selection.lastColumn,\n\t\t\tincludeAllSlots: true\n\t\t} ) ];\n\n\t\t// Selection must be set to pasted cells (some might be removed or new created).\n\t\tconst cellsToSelect = [];\n\n\t\t// Store next cell insert position.\n\t\tlet insertPosition;\n\n\t\t// Content table replace cells algorithm iterates over a selected table fragment and:\n\t\t//\n\t\t// - Removes existing table cells at current slot (location).\n\t\t// - Inserts cell from a pasted table for a matched slots.\n\t\t//\n\t\t// This ensures proper table geometry after the paste\n\t\tfor ( const tableSlot of selectedTableMap ) {\n\t\t\tconst { row, column } = tableSlot;\n\n\t\t\t// Save the insert position for current row start.\n\t\t\tif ( column === selection.firstColumn ) {\n\t\t\t\tinsertPosition = tableSlot.getPositionBefore();\n\t\t\t}\n\n\t\t\t// Map current table slot location to an pasted table slot location.\n\t\t\tconst pastedRow = row - selection.firstRow;\n\t\t\tconst pastedColumn = column - selection.firstColumn;\n\t\t\tconst pastedCell = pastedTableLocationMap[ pastedRow % pastedHeight ][ pastedColumn % pastedWidth ];\n\n\t\t\t// Clone cell to insert (to duplicate its attributes and children).\n\t\t\t// Cloning is required to support repeating pasted table content when inserting to a bigger selection.\n\t\t\tconst cellToInsert = pastedCell ? writer.cloneElement( pastedCell ) : null;\n\n\t\t\t// Replace the cell from the current slot with new table cell.\n\t\t\tconst newTableCell = this._replaceTableSlotCell( tableSlot, cellToInsert, insertPosition, writer );\n\n\t\t\t// The cell was only removed.\n\t\t\tif ( !newTableCell ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Trim the cell if it's row/col-spans would exceed selection area.\n\t\t\ttrimTableCellIfNeeded( newTableCell, row, column, selection.lastRow, selection.lastColumn, writer );\n\n\t\t\tcellsToSelect.push( newTableCell );\n\n\t\t\tinsertPosition = writer.createPositionAfter( newTableCell );\n\t\t}\n\n\t\t// If there are any headings, all the cells that overlap from heading must be splitted.\n\t\tconst headingRows = parseInt( selectedTable.getAttribute( 'headingRows' ) || 0 );\n\t\tconst headingColumns = parseInt( selectedTable.getAttribute( 'headingColumns' ) || 0 );\n\n\t\tconst areHeadingRowsIntersectingSelection = selection.firstRow < headingRows && headingRows <= selection.lastRow;\n\t\tconst areHeadingColumnsIntersectingSelection = selection.firstColumn < headingColumns && headingColumns <= selection.lastColumn;\n\n\t\tif ( areHeadingRowsIntersectingSelection ) {\n\t\t\tconst columnsLimit = { first: selection.firstColumn, last: selection.lastColumn };\n\t\t\tconst newCells = doHorizontalSplit( selectedTable, headingRows, columnsLimit, writer, selection.firstRow );\n\n\t\t\tcellsToSelect.push( ...newCells );\n\t\t}\n\n\t\tif ( areHeadingColumnsIntersectingSelection ) {\n\t\t\tconst rowsLimit = { first: selection.firstRow, last: selection.lastRow };\n\t\t\tconst newCells = doVerticalSplit( selectedTable, headingColumns, rowsLimit, writer );\n\n\t\t\tcellsToSelect.push( ...newCells );\n\t\t}\n\n\t\treturn cellsToSelect;\n\t}\n\n\t/**\n\t * Replaces a single table slot.\n\t *\n\t * @private\n\t * @param {module:table/tablewalker~TableSlot} tableSlot\n\t * @param {module:engine/model/element~Element} cellToInsert\n\t * @param {module:engine/model/position~Position} insertPosition\n\t * @param {module:engine/model/writer~Writer} writer\n\t * @returns {module:engine/model/element~Element|null} Inserted table cell or null if slot should remain empty.\n\t */\n\t_replaceTableSlotCell( tableSlot, cellToInsert, insertPosition, writer ) {\n\t\tconst { cell, isAnchor } = tableSlot;\n\n\t\t// If the slot is occupied by a cell in a selected table - remove it.\n\t\t// The slot of this cell will be either:\n\t\t// - Replaced by a pasted table cell.\n\t\t// - Spanned by a previously pasted table cell.\n\t\tif ( isAnchor ) {\n\t\t\twriter.remove( cell );\n\t\t}\n\n\t\t// There is no cell to insert (might be spanned by other cell in a pasted table) - advance to the next content table slot.\n\t\tif ( !cellToInsert ) {\n\t\t\treturn null;\n\t\t}\n\n\t\twriter.insert( cellToInsert, insertPosition );\n\n\t\treturn cellToInsert;\n\t}\n\n\t/**\n\t * Extracts the table for pasting into a table.\n\t *\n\t * @protected\n\t * @param {module:engine/model/documentfragment~DocumentFragment|module:engine/model/item~Item} content The content to insert.\n\t * @param {module:engine/model/model~Model} model The editor model.\n\t * @returns {module:engine/model/element~Element|null}\n\t */\n\tgetTableIfOnlyTableInContent( content, model ) {\n\t\treturn getTableIfOnlyTableInContent( content, model );\n\t}\n}\n\nfunction getTableIfOnlyTableInContent( content, model ) {\n\tif ( !content.is( 'documentFragment' ) && !content.is( 'element' ) ) {\n\t\treturn null;\n\t}\n\n\t// Table passed directly.\n\tif ( content.is( 'element', 'table' ) ) {\n\t\treturn content;\n\t}\n\n\t// We do not support mixed content when pasting table into table.\n\t// See: https://github.com/ckeditor/ckeditor5/issues/6817.\n\tif ( content.childCount == 1 && content.getChild( 0 ).is( 'element', 'table' ) ) {\n\t\treturn content.getChild( 0 );\n\t}\n\n\t// If there are only whitespaces around a table then use that table for pasting.\n\n\tconst contentRange = model.createRangeIn( content );\n\n\tfor ( const element of contentRange.getItems() ) {\n\t\tif ( element.is( 'element', 'table' ) ) {\n\t\t\t// Stop checking if there is some content before table.\n\t\t\tconst rangeBefore = model.createRange( contentRange.start, model.createPositionBefore( element ) );\n\n\t\t\tif ( model.hasContent( rangeBefore, { ignoreWhitespaces: true } ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\t// Stop checking if there is some content after table.\n\t\t\tconst rangeAfter = model.createRange( model.createPositionAfter( element ), contentRange.end );\n\n\t\t\tif ( model.hasContent( rangeAfter, { ignoreWhitespaces: true } ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\t// There wasn't any content neither before nor after.\n\t\t\treturn element;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n// Prepares a table for pasting and returns adjusted selection dimensions.\n//\n// @param {Array.<module:engine/model/element~Element>} selectedTableCells\n// @param {Object} pastedDimensions\n// @param {Number} pastedDimensions.height\n// @param {Number} pastedDimensions.width\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:table/tableutils~TableUtils} tableUtils\n// @returns {Object} selection\n// @returns {Number} selection.firstColumn\n// @returns {Number} selection.firstRow\n// @returns {Number} selection.lastColumn\n// @returns {Number} selection.lastRow\nfunction prepareTableForPasting( selectedTableCells, pastedDimensions, writer, tableUtils ) {\n\tconst selectedTable = selectedTableCells[ 0 ].findAncestor( 'table' );\n\n\tconst columnIndexes = tableUtils.getColumnIndexes( selectedTableCells );\n\tconst rowIndexes = tableUtils.getRowIndexes( selectedTableCells );\n\n\tconst selection = {\n\t\tfirstColumn: columnIndexes.first,\n\t\tlastColumn: columnIndexes.last,\n\t\tfirstRow: rowIndexes.first,\n\t\tlastRow: rowIndexes.last\n\t};\n\n\t// Single cell selected - expand selection to pasted table dimensions.\n\tconst shouldExpandSelection = selectedTableCells.length === 1;\n\n\tif ( shouldExpandSelection ) {\n\t\tselection.lastRow += pastedDimensions.height - 1;\n\t\tselection.lastColumn += pastedDimensions.width - 1;\n\n\t\texpandTableSize( selectedTable, selection.lastRow + 1, selection.lastColumn + 1, tableUtils );\n\t}\n\n\t// In case of expanding selection we do not reset the selection so in this case we will always try to fix selection\n\t// like in the case of a non-rectangular area. This might be fixed by re-setting selected cells array but this shortcut is safe.\n\tif ( shouldExpandSelection || !tableUtils.isSelectionRectangular( selectedTableCells ) ) {\n\t\t// For a non-rectangular selection (ie in which some cells sticks out from a virtual selection rectangle) we need to create\n\t\t// a table layout that has a rectangular selection. This will split cells so the selection become rectangular.\n\t\t// Beyond this point we will operate on fixed content table.\n\t\tsplitCellsToRectangularSelection( selectedTable, selection, writer );\n\t}\n\t// However a selected table fragment might be invalid if examined alone. Ie such table fragment:\n\t//\n\t//    +---+---+---+---+\n\t//  0 | a | b | c | d |\n\t//    +   +   +---+---+\n\t//  1 |   | e | f | g |\n\t//    +   +---+   +---+\n\t//  2 |   | h |   | i | <- last row, each cell has rowspan = 2,\n\t//    +   +   +   +   +    so we need to return 3, not 2\n\t//  3 |   |   |   |   |\n\t//    +---+---+---+---+\n\t//\n\t// is invalid as the cells \"h\" and \"i\" have rowspans.\n\t// This case needs only adjusting the selection dimension as the rest of the algorithm operates on empty slots also.\n\telse {\n\t\tselection.lastRow = adjustLastRowIndex( selectedTable, selection );\n\t\tselection.lastColumn = adjustLastColumnIndex( selectedTable, selection );\n\t}\n\n\treturn selection;\n}\n\n// Expand table (in place) to expected size.\nfunction expandTableSize( table, expectedHeight, expectedWidth, tableUtils ) {\n\tconst tableWidth = tableUtils.getColumns( table );\n\tconst tableHeight = tableUtils.getRows( table );\n\n\tif ( expectedWidth > tableWidth ) {\n\t\ttableUtils.insertColumns( table, {\n\t\t\tat: tableWidth,\n\t\t\tcolumns: expectedWidth - tableWidth\n\t\t} );\n\t}\n\n\tif ( expectedHeight > tableHeight ) {\n\t\ttableUtils.insertRows( table, {\n\t\t\tat: tableHeight,\n\t\t\trows: expectedHeight - tableHeight\n\t\t} );\n\t}\n}\n\n// Returns two-dimensional array that is addressed by [ row ][ column ] that stores cells anchored at given location.\n//\n// At given row & column location it might be one of:\n//\n// * cell - cell from pasted table anchored at this location.\n// * null - if no cell is anchored at this location.\n//\n// For instance, from a table below:\n//\n//\t\t+----+----+----+----+\n//\t\t| 00 | 01 | 02 | 03 |\n//\t\t+    +----+----+----+\n//\t\t|    | 11      | 13 |\n//\t\t+----+         +----+\n//\t\t| 20 |         | 23 |\n//\t\t+----+----+----+----+\n//\n// The method will return an array (numbers represents cell element):\n//\n//\tconst map = [\n//\t\t[ '00', '01', '02', '03' ],\n//\t\t[ null, '11', null, '13' ],\n//\t\t[ '20', null, null, '23' ]\n//\t]\n//\n// This allows for a quick access to table at give row & column. For instance to access table cell \"13\" from pasted table call:\n//\n//\t\tconst cell = map[ 1 ][ 3 ]\n//\nfunction createLocationMap( table, width, height ) {\n\t// Create height x width (row x column) two-dimensional table to store cells.\n\tconst map = new Array( height ).fill( null )\n\t\t.map( () => new Array( width ).fill( null ) );\n\n\tfor ( const { column, row, cell } of new TableWalker( table ) ) {\n\t\tmap[ row ][ column ] = cell;\n\t}\n\n\treturn map;\n}\n\n// Make selected cells rectangular by splitting the cells that stand out from a rectangular selection.\n//\n// In the table below a selection is shown with \"::\" and slots with anchor cells are named.\n//\n// +----+----+----+----+----+                    +----+----+----+----+----+\n// | 00 | 01 | 02 | 03      |                    | 00 | 01 | 02 | 03      |\n// +    +----+    +----+----+                    |    ::::::::::::::::----+\n// |    | 11 |    | 13 | 14 |                    |    ::11 |    | 13:: 14 |    <- first row\n// +----+----+    +    +----+                    +----::---|    |   ::----+\n// | 20 | 21 |    |    | 24 |   select cells:    | 20 ::21 |    |   :: 24 |\n// +----+----+    +----+----+     11 -> 33       +----::---|    |---::----+\n// | 30      |    | 33 | 34 |                    | 30 ::   |    | 33:: 34 |    <- last row\n// +         +    +----+    +                    |    ::::::::::::::::    +\n// |         |    | 43 |    |                    |         |    | 43 |    |\n// +----+----+----+----+----+                    +----+----+----+----+----+\n//                                                      ^          ^\n//                                                     first & last columns\n//\n// Will update table to:\n//\n//                       +----+----+----+----+----+\n//                       | 00 | 01 | 02 | 03      |\n//                       +    +----+----+----+----+\n//                       |    | 11 |    | 13 | 14 |\n//                       +----+----+    +    +----+\n//                       | 20 | 21 |    |    | 24 |\n//                       +----+----+    +----+----+\n//                       | 30 |    |    | 33 | 34 |\n//                       +    +----+----+----+    +\n//                       |    |    |    | 43 |    |\n//                       +----+----+----+----+----+\n//\n// In th example above:\n// - Cell \"02\" which have `rowspan = 4` must be trimmed at first and at after last row.\n// - Cell \"03\" which have `rowspan = 2` and `colspan = 2` must be trimmed at first column and after last row.\n// - Cells \"00\", \"03\" & \"30\" which cannot be cut by this algorithm as they are outside the trimmed area.\n// - Cell \"13\" cannot be cut as it is inside the trimmed area.\nfunction splitCellsToRectangularSelection( table, dimensions, writer ) {\n\tconst { firstRow, lastRow, firstColumn, lastColumn } = dimensions;\n\n\tconst rowIndexes = { first: firstRow, last: lastRow };\n\tconst columnIndexes = { first: firstColumn, last: lastColumn };\n\n\t// 1. Split cells vertically in two steps as first step might create cells that needs to split again.\n\tdoVerticalSplit( table, firstColumn, rowIndexes, writer );\n\tdoVerticalSplit( table, lastColumn + 1, rowIndexes, writer );\n\n\t// 2. Split cells horizontally in two steps as first step might create cells that needs to split again.\n\tdoHorizontalSplit( table, firstRow, columnIndexes, writer );\n\tdoHorizontalSplit( table, lastRow + 1, columnIndexes, writer, firstRow );\n}\n\nfunction doHorizontalSplit( table, splitRow, limitColumns, writer, startRow = 0 ) {\n\t// If selection starts at first row then no split is needed.\n\tif ( splitRow < 1 ) {\n\t\treturn;\n\t}\n\n\tconst overlappingCells = getVerticallyOverlappingCells( table, splitRow, startRow );\n\n\t// Filter out cells that are not touching insides of the rectangular selection.\n\tconst cellsToSplit = overlappingCells.filter( ( { column, cellWidth } ) => isAffectedBySelection( column, cellWidth, limitColumns ) );\n\n\treturn cellsToSplit.map( ( { cell } ) => splitHorizontally( cell, splitRow, writer ) );\n}\n\nfunction doVerticalSplit( table, splitColumn, limitRows, writer ) {\n\t// If selection starts at first column then no split is needed.\n\tif ( splitColumn < 1 ) {\n\t\treturn;\n\t}\n\n\tconst overlappingCells = getHorizontallyOverlappingCells( table, splitColumn );\n\n\t// Filter out cells that are not touching insides of the rectangular selection.\n\tconst cellsToSplit = overlappingCells.filter( ( { row, cellHeight } ) => isAffectedBySelection( row, cellHeight, limitRows ) );\n\n\treturn cellsToSplit.map( ( { cell, column } ) => splitVertically( cell, column, splitColumn, writer ) );\n}\n\n// Checks if cell at given row (column) is affected by a rectangular selection defined by first/last column (row).\n//\n// The same check is used for row as for column.\nfunction isAffectedBySelection( index, span, limit ) {\n\tconst endIndex = index + span - 1;\n\tconst { first, last } = limit;\n\n\tconst isInsideSelection = index >= first && index <= last;\n\tconst overlapsSelectionFromOutside = index < first && endIndex >= first;\n\n\treturn isInsideSelection || overlapsSelectionFromOutside;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablekeyboard\n */\n\nimport TableSelection from './tableselection';\nimport TableWalker from './tablewalker';\nimport TableUtils from './tableutils';\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { getLocalizedArrowKeyCodeDirection } from 'ckeditor5/src/utils';\n\n/**\n * This plugin enables keyboard navigation for tables.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableKeyboard extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableKeyboard';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableSelection, TableUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst view = this.editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tthis.listenTo( viewDocument, 'arrowKey', ( ...args ) => this._onArrowKey( ...args ), { context: 'table' } );\n\t\tthis.listenTo( viewDocument, 'tab', ( ...args ) => this._handleTabOnSelectedTable( ...args ), { context: 'figure' } );\n\t\tthis.listenTo( viewDocument, 'tab', ( ...args ) => this._handleTab( ...args ), { context: [ 'th', 'td' ] } );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:tab tab} events for the <kbd>Tab</kbd> key executed\n\t * when the table widget is selected.\n\t *\n\t * @private\n\t * @param {module:engine/view/observer/bubblingeventinfo~BubblingEventInfo} bubblingEventInfo\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} domEventData\n\t */\n\t_handleTabOnSelectedTable( bubblingEventInfo, domEventData ) {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tif ( !selectedElement || !selectedElement.is( 'element', 'table' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdomEventData.preventDefault();\n\t\tdomEventData.stopPropagation();\n\t\tbubblingEventInfo.stop();\n\n\t\teditor.model.change( writer => {\n\t\t\twriter.setSelection( writer.createRangeIn( selectedElement.getChild( 0 ).getChild( 0 ) ) );\n\t\t} );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:tab tab} events for the <kbd>Tab</kbd> key executed\n\t * inside table cells.\n\t *\n\t * @private\n\t * @param {module:engine/view/observer/bubblingeventinfo~BubblingEventInfo} bubblingEventInfo\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} domEventData\n\t */\n\t_handleTab( bubblingEventInfo, domEventData ) {\n\t\tconst editor = this.editor;\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\n\t\tconst selection = editor.model.document.selection;\n\t\tconst isForward = !domEventData.shiftKey;\n\n\t\tlet tableCell = tableUtils.getTableCellsContainingSelection( selection )[ 0 ];\n\n\t\tif ( !tableCell ) {\n\t\t\ttableCell = this.editor.plugins.get( 'TableSelection' ).getFocusCell();\n\t\t}\n\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdomEventData.preventDefault();\n\t\tdomEventData.stopPropagation();\n\t\tbubblingEventInfo.stop();\n\n\t\tconst tableRow = tableCell.parent;\n\t\tconst table = tableRow.parent;\n\n\t\tconst currentRowIndex = table.getChildIndex( tableRow );\n\t\tconst currentCellIndex = tableRow.getChildIndex( tableCell );\n\n\t\tconst isFirstCellInRow = currentCellIndex === 0;\n\n\t\tif ( !isForward && isFirstCellInRow && currentRowIndex === 0 ) {\n\t\t\t// Set the selection over the whole table if the selection was in the first table cell.\n\t\t\teditor.model.change( writer => {\n\t\t\t\twriter.setSelection( writer.createRangeOn( table ) );\n\t\t\t} );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst isLastCellInRow = currentCellIndex === tableRow.childCount - 1;\n\t\tconst isLastRow = currentRowIndex === tableUtils.getRows( table ) - 1;\n\n\t\tif ( isForward && isLastRow && isLastCellInRow ) {\n\t\t\teditor.execute( 'insertTableRowBelow' );\n\n\t\t\t// Check if the command actually added a row. If `insertTableRowBelow` execution didn't add a row (because it was disabled\n\t\t\t// or it got overwritten) set the selection over the whole table to mirror the first cell case.\n\t\t\tif ( currentRowIndex === tableUtils.getRows( table ) - 1 ) {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\twriter.setSelection( writer.createRangeOn( table ) );\n\t\t\t\t} );\n\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\tlet cellToFocus;\n\n\t\t// Move to the first cell in the next row.\n\t\tif ( isForward && isLastCellInRow ) {\n\t\t\tconst nextRow = table.getChild( currentRowIndex + 1 );\n\n\t\t\tcellToFocus = nextRow.getChild( 0 );\n\t\t}\n\t\t// Move to the last cell in the previous row.\n\t\telse if ( !isForward && isFirstCellInRow ) {\n\t\t\tconst previousRow = table.getChild( currentRowIndex - 1 );\n\n\t\t\tcellToFocus = previousRow.getChild( previousRow.childCount - 1 );\n\t\t}\n\t\t// Move to the next/previous cell.\n\t\telse {\n\t\t\tcellToFocus = tableRow.getChild( currentCellIndex + ( isForward ? 1 : -1 ) );\n\t\t}\n\n\t\teditor.model.change( writer => {\n\t\t\twriter.setSelection( writer.createRangeIn( cellToFocus ) );\n\t\t} );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:keydown keydown} events.\n\t *\n\t * @private\n\t * @param {module:utils/eventinfo~EventInfo} eventInfo\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} domEventData\n\t */\n\t_onArrowKey( eventInfo, domEventData ) {\n\t\tconst editor = this.editor;\n\t\tconst keyCode = domEventData.keyCode;\n\n\t\tconst direction = getLocalizedArrowKeyCodeDirection( keyCode, editor.locale.contentLanguageDirection );\n\t\tconst wasHandled = this._handleArrowKeys( direction, domEventData.shiftKey );\n\n\t\tif ( wasHandled ) {\n\t\t\tdomEventData.preventDefault();\n\t\t\tdomEventData.stopPropagation();\n\t\t\teventInfo.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles arrow keys to move the selection around the table.\n\t *\n\t * @private\n\t * @param {'left'|'up'|'right'|'down'} direction The direction of the arrow key.\n\t * @param {Boolean} expandSelection If the current selection should be expanded.\n\t * @returns {Boolean} Returns `true` if key was handled.\n\t */\n\t_handleArrowKeys( direction, expandSelection ) {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst isForward = [ 'right', 'down' ].includes( direction );\n\n\t\t// In case one or more table cells are selected (from outside),\n\t\t// move the selection to a cell adjacent to the selected table fragment.\n\t\tconst selectedCells = tableUtils.getSelectedTableCells( selection );\n\n\t\tif ( selectedCells.length ) {\n\t\t\tlet focusCell;\n\n\t\t\tif ( expandSelection ) {\n\t\t\t\tfocusCell = this.editor.plugins.get( 'TableSelection' ).getFocusCell();\n\t\t\t} else {\n\t\t\t\tfocusCell = isForward ? selectedCells[ selectedCells.length - 1 ] : selectedCells[ 0 ];\n\t\t\t}\n\n\t\t\tthis._navigateFromCellInDirection( focusCell, direction, expandSelection );\n\n\t\t\treturn true;\n\t\t}\n\n\t\t// Abort if we're not in a table cell.\n\t\tconst tableCell = selection.focus.findAncestor( 'tableCell' );\n\n\t\t/* istanbul ignore if: paranoid check */\n\t\tif ( !tableCell ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// When the selection is not collapsed.\n\t\tif ( !selection.isCollapsed ) {\n\t\t\tif ( expandSelection ) {\n\t\t\t\t// Navigation is in the opposite direction than the selection direction so this is shrinking of the selection.\n\t\t\t\t// Selection for sure will not approach cell edge.\n\t\t\t\t//\n\t\t\t\t// With a special case when all cell content is selected - then selection should expand to the other cell.\n\t\t\t\t// Note: When the entire cell gets selected using CTRL+A, the selection is always forward.\n\t\t\t\tif ( selection.isBackward == isForward && !selection.containsEntireContent( tableCell ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\t\t// It will collapse for non-object selected so it's not going to move to other cell.\n\t\t\t\tif ( !selectedElement || !model.schema.isObject( selectedElement ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Let's check if the selection is at the beginning/end of the cell.\n\t\tif ( this._isSelectionAtCellEdge( selection, tableCell, isForward ) ) {\n\t\t\tthis._navigateFromCellInDirection( tableCell, direction, expandSelection );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Returns `true` if the selection is at the boundary of a table cell according to the navigation direction.\n\t *\n\t * @private\n\t * @param {module:engine/model/selection~Selection} selection The current selection.\n\t * @param {module:engine/model/element~Element} tableCell The current table cell element.\n\t * @param {Boolean} isForward The expected navigation direction.\n\t * @returns {Boolean}\n\t */\n\t_isSelectionAtCellEdge( selection, tableCell, isForward ) {\n\t\tconst model = this.editor.model;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst focus = isForward ? selection.getLastPosition() : selection.getFirstPosition();\n\n\t\t// If the current limit element is not table cell we are for sure not at the cell edge.\n\t\t// Also `modifySelection` will not let us out of it.\n\t\tif ( !schema.getLimitElement( focus ).is( 'element', 'tableCell' ) ) {\n\t\t\tconst boundaryPosition = model.createPositionAt( tableCell, isForward ? 'end' : 0 );\n\n\t\t\treturn boundaryPosition.isTouching( focus );\n\t\t}\n\n\t\tconst probe = model.createSelection( focus );\n\n\t\tmodel.modifySelection( probe, { direction: isForward ? 'forward' : 'backward' } );\n\n\t\t// If there was no change in the focus position, then it's not possible to move the selection there.\n\t\treturn focus.isEqual( probe.focus );\n\t}\n\n\t/**\n\t * Moves the selection from the given table cell in the specified direction.\n\t *\n\t * @protected\n\t * @param {module:engine/model/element~Element} focusCell The table cell that is current multi-cell selection focus.\n\t * @param {'left'|'up'|'right'|'down'} direction Direction in which selection should move.\n\t * @param {Boolean} [expandSelection=false] If the current selection should be expanded.\n\t */\n\t_navigateFromCellInDirection( focusCell, direction, expandSelection = false ) {\n\t\tconst model = this.editor.model;\n\n\t\tconst table = focusCell.findAncestor( 'table' );\n\t\tconst tableMap = [ ...new TableWalker( table, { includeAllSlots: true } ) ];\n\t\tconst { row: lastRow, column: lastColumn } = tableMap[ tableMap.length - 1 ];\n\n\t\tconst currentCellInfo = tableMap.find( ( { cell } ) => cell == focusCell );\n\t\tlet { row, column } = currentCellInfo;\n\n\t\tswitch ( direction ) {\n\t\t\tcase 'left':\n\t\t\t\tcolumn--;\n\t\t\t\tbreak;\n\n\t\t\tcase 'up':\n\t\t\t\trow--;\n\t\t\t\tbreak;\n\n\t\t\tcase 'right':\n\t\t\t\tcolumn += currentCellInfo.cellWidth;\n\t\t\t\tbreak;\n\n\t\t\tcase 'down':\n\t\t\t\trow += currentCellInfo.cellHeight;\n\t\t\t\tbreak;\n\t\t}\n\n\t\tconst isOutsideVertically = row < 0 || row > lastRow;\n\t\tconst isBeforeFirstCell = column < 0 && row <= 0;\n\t\tconst isAfterLastCell = column > lastColumn && row >= lastRow;\n\n\t\t// Note that if the table cell at the end of a row is row-spanned then isAfterLastCell will never be true.\n\t\t// However, we don't know if user was navigating on the last row or not, so let's stay in the table.\n\n\t\tif ( isOutsideVertically || isBeforeFirstCell || isAfterLastCell ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( writer.createRangeOn( table ) );\n\t\t\t} );\n\n\t\t\treturn;\n\t\t}\n\n\t\tif ( column < 0 ) {\n\t\t\tcolumn = expandSelection ? 0 : lastColumn;\n\t\t\trow--;\n\t\t} else if ( column > lastColumn ) {\n\t\t\tcolumn = expandSelection ? lastColumn : 0;\n\t\t\trow++;\n\t\t}\n\n\t\tconst cellToSelect = tableMap.find( cellInfo => cellInfo.row == row && cellInfo.column == column ).cell;\n\t\tconst isForward = [ 'right', 'down' ].includes( direction );\n\t\tconst tableSelection = this.editor.plugins.get( 'TableSelection' );\n\n\t\tif ( expandSelection && tableSelection.isEnabled ) {\n\t\t\tconst anchorCell = tableSelection.getAnchorCell() || focusCell;\n\n\t\t\ttableSelection.setCellSelection( anchorCell, cellToSelect );\n\t\t} else {\n\t\t\tconst positionToSelect = model.createPositionAt( cellToSelect, isForward ? 0 : 'end' );\n\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( positionToSelect );\n\t\t\t} );\n\t\t}\n\t}\n}\n\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableselection/mouseeventsobserver\n */\n\nimport { DomEventObserver } from 'ckeditor5/src/engine';\n\n/**\n * The mouse selection event observer.\n *\n * It registers listeners for the following DOM events:\n *\n * - `'mousemove'`\n * - `'mouseup'`\n * - `'mouseleave'`\n *\n * Note that this observer is disabled by default. To enable this observer, it needs to be added to\n * {@link module:engine/view/view~View} using the {@link module:engine/view/view~View#addObserver} method.\n *\n * The observer is registered by the {@link module:table/tableselection~TableSelection} plugin.\n *\n * @extends module:engine/view/observer/domeventobserver~DomEventObserver\n */\nexport default class MouseEventsObserver extends DomEventObserver {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view ) {\n\t\tsuper( view );\n\n\t\tthis.domEventType = [ 'mousemove', 'mouseleave' ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tonDomEvent( domEvent ) {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n}\n\n/**\n * Fired when the mouse is moved over one of the editables.\n *\n * Introduced by {@link module:table/tableselection/mouseeventsobserver~MouseEventsObserver}.\n *\n * Note that this event is not available by default. To make it available,\n * {@link module:table/tableselection/mouseeventsobserver~MouseEventsObserver} needs to be added\n * to {@link module:engine/view/view~View} using the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:table/tableselection/mouseeventsobserver~MouseEventsObserver\n * @event module:engine/view/document~Document#event:mousemove\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n\n/**\n * Fired when the mouse is moved out of one of the editables.\n *\n * Introduced by {@link module:table/tableselection/mouseeventsobserver~MouseEventsObserver}.\n *\n * Note that this event is not available by default. To make it available,\n * {@link module:table/tableselection/mouseeventsobserver~MouseEventsObserver} needs to be added\n * to {@link module:engine/view/view~View} using the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:table/tableselection/mouseeventsobserver~MouseEventsObserver\n * @event module:engine/view/document~Document#event:mouseleave\n * @param {module:engine/view/observer/domeventdata~DomEventData} data Event data.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablemouse\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TableSelection from './tableselection';\nimport MouseEventsObserver from './tablemouse/mouseeventsobserver';\nimport TableUtils from './tableutils';\n\n/**\n * This plugin enables a table cells' selection with the mouse.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableMouse extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableMouse';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableSelection, TableUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Currently the MouseObserver only handles `mousedown` and `mouseup` events.\n\t\t// TODO move to the engine?\n\t\teditor.editing.view.addObserver( MouseEventsObserver );\n\n\t\tthis._enableShiftClickSelection();\n\t\tthis._enableMouseDragSelection();\n\t}\n\n\t/**\n\t * Enables making cells selection by <kbd>Shift</kbd>+click. Creates a selection from the cell which previously held\n\t * the selection to the cell which was clicked. It can be the same cell, in which case it selects a single cell.\n\t *\n\t * @private\n\t */\n\t_enableShiftClickSelection() {\n\t\tconst editor = this.editor;\n\t\tconst tableUtils = editor.plugins.get( TableUtils );\n\t\tlet blockSelectionChange = false;\n\n\t\tconst tableSelection = editor.plugins.get( TableSelection );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mousedown', ( evt, domEventData ) => {\n\t\t\tconst selection = editor.model.document.selection;\n\n\t\t\tif ( !this.isEnabled || !tableSelection.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !domEventData.domEvent.shiftKey ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst anchorCell = tableSelection.getAnchorCell() || tableUtils.getTableCellsContainingSelection( selection )[ 0 ];\n\n\t\t\tif ( !anchorCell ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst targetCell = this._getModelTableCellFromDomEvent( domEventData );\n\n\t\t\tif ( targetCell && haveSameTableParent( anchorCell, targetCell ) ) {\n\t\t\t\tblockSelectionChange = true;\n\t\t\t\ttableSelection.setCellSelection( anchorCell, targetCell );\n\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t}\n\t\t} );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mouseup', () => {\n\t\t\tblockSelectionChange = false;\n\t\t} );\n\n\t\t// We need to ignore a `selectionChange` event that is fired after we render our new table cells selection.\n\t\t// When downcasting table cells selection to the view, we put the view selection in the last selected cell\n\t\t// in a place that may not be natively a \"correct\" location. This is – we put it directly in the `<td>` element.\n\t\t// All browsers fire the native `selectionchange` event.\n\t\t// However, all browsers except Safari return the selection in the exact place where we put it\n\t\t// (even though it's visually normalized). Safari returns `<td><p>^foo` that makes our selection observer\n\t\t// fire our `selectionChange` event (because the view selection that we set in the first step differs from the DOM selection).\n\t\t// Since `selectionChange` is fired, we automatically update the model selection that moves it that paragraph.\n\t\t// This breaks our dear cells selection.\n\t\t//\n\t\t// Theoretically this issue concerns only Safari that is the only browser that do normalize the selection.\n\t\t// However, to avoid code branching and to have a good coverage for this event blocker, I enabled it for all browsers.\n\t\t//\n\t\t// Note: I'm keeping the `blockSelectionChange` state separately for shift+click and mouse drag (exact same logic)\n\t\t// so I don't have to try to analyze whether they don't overlap in some weird cases. Probably they don't.\n\t\t// But I have other things to do, like writing this comment.\n\t\tthis.listenTo( editor.editing.view.document, 'selectionChange', evt => {\n\t\t\tif ( blockSelectionChange ) {\n\t\t\t\t// @if CK_DEBUG // console.log( 'Blocked selectionChange to avoid breaking table cells selection.' );\n\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Enables making cells selection by dragging.\n\t *\n\t * The selection is made only on mousemove. Mouse tracking is started on mousedown.\n\t * However, the cells selection is enabled only after the mouse cursor left the anchor cell.\n\t * Thanks to that normal text selection within one cell works just fine. However, you can still select\n\t * just one cell by leaving the anchor cell and moving back to it.\n\t *\n\t * @private\n\t */\n\t_enableMouseDragSelection() {\n\t\tconst editor = this.editor;\n\t\tlet anchorCell, targetCell;\n\t\tlet beganCellSelection = false;\n\t\tlet blockSelectionChange = false;\n\n\t\tconst tableSelection = editor.plugins.get( TableSelection );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mousedown', ( evt, domEventData ) => {\n\t\t\tif ( !this.isEnabled || !tableSelection.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Make sure to not conflict with the shift+click listener and any other possible handler.\n\t\t\tif ( domEventData.domEvent.shiftKey || domEventData.domEvent.ctrlKey || domEventData.domEvent.altKey ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tanchorCell = this._getModelTableCellFromDomEvent( domEventData );\n\t\t} );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mousemove', ( evt, domEventData ) => {\n\t\t\tif ( !domEventData.domEvent.buttons ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !anchorCell ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst newTargetCell = this._getModelTableCellFromDomEvent( domEventData );\n\n\t\t\tif ( newTargetCell && haveSameTableParent( anchorCell, newTargetCell ) ) {\n\t\t\t\ttargetCell = newTargetCell;\n\n\t\t\t\t// Switch to the cell selection mode after the mouse cursor left the anchor cell.\n\t\t\t\t// Switch off only on mouseup (makes selecting a single cell possible).\n\t\t\t\tif ( !beganCellSelection && targetCell != anchorCell ) {\n\t\t\t\t\tbeganCellSelection = true;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Yep, not making a cell selection yet. See method docs.\n\t\t\tif ( !beganCellSelection ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tblockSelectionChange = true;\n\t\t\ttableSelection.setCellSelection( anchorCell, targetCell );\n\n\t\t\tdomEventData.preventDefault();\n\t\t} );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mouseup', () => {\n\t\t\tbeganCellSelection = false;\n\t\t\tblockSelectionChange = false;\n\t\t\tanchorCell = null;\n\t\t\ttargetCell = null;\n\t\t} );\n\n\t\t// See the explanation in `_enableShiftClickSelection()`.\n\t\tthis.listenTo( editor.editing.view.document, 'selectionChange', evt => {\n\t\t\tif ( blockSelectionChange ) {\n\t\t\t\t// @if CK_DEBUG // console.log( 'Blocked selectionChange to avoid breaking table cells selection.' );\n\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Returns the model table cell element based on the target element of the passed DOM event.\n\t *\n\t * @private\n\t * @param {module:engine/view/observer/domeventdata~DomEventData} domEventData\n\t * @returns {module:engine/model/element~Element|undefined} Returns the table cell or `undefined`.\n\t */\n\t_getModelTableCellFromDomEvent( domEventData ) {\n\t\t// Note: Work with positions (not element mapping) because the target element can be an attribute or other non-mapped element.\n\t\tconst viewTargetElement = domEventData.target;\n\t\tconst viewPosition = this.editor.editing.view.createPositionAt( viewTargetElement, 0 );\n\t\tconst modelPosition = this.editor.editing.mapper.toModelPosition( viewPosition );\n\t\tconst modelElement = modelPosition.parent;\n\n\t\treturn modelElement.findAncestor( 'tableCell', { includeSelf: true } );\n\t}\n}\n\nfunction haveSameTableParent( cellA, cellB ) {\n\treturn cellA.parent.parent == cellB.parent.parent;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./table.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/ui/widget\n */\n\nimport { isWidget } from 'ckeditor5/src/widget';\n\n/**\n * Returns a table widget editing view element if one is selected.\n *\n * @param {module:engine/view/selection~Selection|module:engine/view/documentselection~DocumentSelection} selection\n * @returns {module:engine/view/element~Element|null}\n */\nexport function getSelectedTableWidget( selection ) {\n\tconst viewElement = selection.getSelectedElement();\n\n\tif ( viewElement && isTableWidget( viewElement ) ) {\n\t\treturn viewElement;\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns a table widget editing view element if one is among the selection's ancestors.\n *\n * @param {module:engine/view/selection~Selection|module:engine/view/documentselection~DocumentSelection} selection\n * @returns {module:engine/view/element~Element|null}\n */\nexport function getTableWidgetAncestor( selection ) {\n\tconst selectionPosition = selection.getFirstPosition();\n\n\tif ( !selectionPosition ) {\n\t\treturn null;\n\t}\n\n\tlet parent = selectionPosition.parent;\n\n\twhile ( parent ) {\n\t\tif ( parent.is( 'element' ) && isTableWidget( parent ) ) {\n\t\t\treturn parent;\n\t\t}\n\n\t\tparent = parent.parent;\n\t}\n\n\treturn null;\n}\n\n// Checks if a given view element is a table widget.\n//\n// @param {module:engine/view/element~Element} viewElement\n// @returns {Boolean}\nfunction isTableWidget( viewElement ) {\n\treturn !!viewElement.getCustomProperty( 'table' ) && isWidget( viewElement );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablepropertycommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The table cell attribute command.\n *\n * This command is a base command for other table property commands.\n *\n * @extends module:core/command~Command\n */\nexport default class TablePropertyCommand extends Command {\n\t/**\n\t * Creates a new `TablePropertyCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} attributeName Table cell attribute name.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, attributeName, defaultValue ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The attribute that will be set by the command.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.attributeName = attributeName;\n\n\t\t/**\n\t\t * The default value for the attribute.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {String}\n\t\t */\n\t\tthis._defaultValue = defaultValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\tconst table = selection.getFirstPosition().findAncestor( 'table' );\n\n\t\tthis.isEnabled = !!table;\n\t\tthis.value = this._getValue( table );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} [options]\n\t * @param {*} [options.value] If set, the command will set the attribute on the selected table.\n\t * If not set, the command will remove the attribute from the selected table.\n\t * @param {module:engine/model/batch~Batch} [options.batch] Pass the model batch instance to the command to aggregate changes,\n\t * for example, to allow a single undo step for multiple executions.\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\tconst { value, batch } = options;\n\n\t\tconst table = selection.getFirstPosition().findAncestor( 'table' );\n\t\tconst valueToSet = this._getValueToSet( value );\n\n\t\tmodel.enqueueChange( batch, writer => {\n\t\t\tif ( valueToSet ) {\n\t\t\t\twriter.setAttribute( this.attributeName, valueToSet, table );\n\t\t\t} else {\n\t\t\t\twriter.removeAttribute( this.attributeName, table );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the attribute value for a table.\n\t *\n\t * @param {module:engine/model/element~Element} table\n\t * @returns {String|undefined}\n\t * @private\n\t */\n\t_getValue( table ) {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = table.getAttribute( this.attributeName );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Returns the proper model value. It can be used to add a default unit to numeric values.\n\t *\n\t * @private\n\t * @param {*} value\n\t * @returns {*}\n\t */\n\t_getValueToSet( value ) {\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablebackgroundcolorcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\n\n/**\n * The table background color command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBackgroundColor'` editor command.\n *\n * To change the background color of the selected table, execute the command:\n *\n *\t\teditor.execute( 'tableBackgroundColor', {\n *\t\t\tvalue: '#f00'\n *\t\t} );\n *\n * @extends module:table/tableproperties/commands/tablepropertycommand~TablePropertyCommand\n */\nexport default class TableBackgroundColorCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBackgroundColorCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableBackgroundColor', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/table-properties\n */\n\nimport { isObject } from 'lodash-es';\n\n/**\n * Returns a string if all four values of box sides are equal.\n *\n * If a string is passed, it is treated as a single value (pass-through).\n *\n *\t\t// Returns 'foo':\n *\t\tgetSingleValue( { top: 'foo', right: 'foo', bottom: 'foo', left: 'foo' } );\n *\t\tgetSingleValue( 'foo' );\n *\n *\t\t// Returns undefined:\n *\t\tgetSingleValue( { top: 'foo', right: 'foo', bottom: 'bar', left: 'foo' } );\n *\t\tgetSingleValue( { top: 'foo', right: 'foo' } );\n *\n * @param objectOrString\n * @returns {module:engine/view/stylesmap~BoxSides|String}\n */\nexport function getSingleValue( objectOrString ) {\n\tif ( !objectOrString || !isObject( objectOrString ) ) {\n\t\treturn objectOrString;\n\t}\n\n\tconst { top, right, bottom, left } = objectOrString;\n\n\tif ( top == right && right == bottom && bottom == left ) {\n\t\treturn top;\n\t}\n}\n\n/**\n * Adds a unit to a value if the value is a number or a string representing a number.\n *\n * **Note**: It does nothing to non-numeric values.\n *\n *\t\tgetSingleValue( 25, 'px' );\t\t// '25px'\n *\t\tgetSingleValue( 25, 'em' );\t\t// '25em'\n *\t\tgetSingleValue( '25em', 'px' );\t// '25em'\n *\t\tgetSingleValue( 'foo', 'px' );\t// 'foo'\n *\n * @param {*} value\n * @param {String} defaultUnit A default unit added to a numeric value.\n * @returns {String|*}\n */\nexport function addDefaultUnitToNumericValue( value, defaultUnit ) {\n\tconst numericValue = parseFloat( value );\n\n\tif ( Number.isNaN( numericValue ) ) {\n\t\treturn value;\n\t}\n\n\tif ( String( numericValue ) !== String( value ) ) {\n\t\treturn value;\n\t}\n\n\treturn `${ numericValue }${ defaultUnit }`;\n}\n\n/**\n * Returns the normalized configuration.\n *\n * @param {Object} config\n * @param {Object} [options={}]\n * @param {Boolean} [options.includeAlignmentProperty=false] Whether the \"alignment\" property should be added.\n * @param {Boolean} [options.includePaddingProperty=false] Whether the \"padding\" property should be added.\n * @param {Boolean} [options.includeVerticalAlignmentProperty=false] Whether the \"verticalAlignment\" property should be added.\n * @param {Boolean} [options.includeHorizontalAlignmentProperty=false] Whether the \"horizontalAlignment\" property should be added.\n * @param {Boolean} [options.isRightToLeftContent=false] Whether the content is right-to-left.\n * @returns {Object}\n */\nexport function getNormalizedDefaultProperties( config, options = {} ) {\n\tconst normalizedConfig = Object.assign( {\n\t\tborderStyle: 'none',\n\t\tborderWidth: '',\n\t\tborderColor: '',\n\t\tbackgroundColor: '',\n\t\twidth: '',\n\t\theight: ''\n\t}, config );\n\n\tif ( options.includeAlignmentProperty && !normalizedConfig.alignment ) {\n\t\tnormalizedConfig.alignment = 'center';\n\t}\n\n\tif ( options.includePaddingProperty && !normalizedConfig.padding ) {\n\t\tnormalizedConfig.padding = '';\n\t}\n\n\tif ( options.includeVerticalAlignmentProperty && !normalizedConfig.verticalAlignment ) {\n\t\tnormalizedConfig.verticalAlignment = 'middle';\n\t}\n\n\tif ( options.includeHorizontalAlignmentProperty && !normalizedConfig.horizontalAlignment ) {\n\t\tnormalizedConfig.horizontalAlignment = options.isRightToLeftContent ? 'right' : 'left';\n\t}\n\n\treturn normalizedConfig;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablebordercolorcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table border color command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBorderColor'` editor command.\n *\n * To change the border color of the selected table, execute the command:\n *\n *\t\teditor.execute( 'tableBorderColor', {\n *\t\t\tvalue: '#f00'\n *\t\t} );\n *\n * @extends module:table/tableproperties/commands/tablepropertycommand~TablePropertyCommand\n */\nexport default class TableBorderColorCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBorderColorCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableBorderColor', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValue( table ) {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( table.getAttribute( this.attributeName ) );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tableborderstylecommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table style border command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBorderStyle'` editor command.\n *\n * To change the border style of the selected table, execute the command:\n *\n *\t\teditor.execute( 'tableBorderStyle', {\n *\t\t\tvalue: 'dashed'\n *\t\t} );\n *\n * @extends module:table/tableproperties/commands/tablepropertycommand~TablePropertyCommand\n */\nexport default class TableBorderStyleCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBorderStyleCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableBorderStyle', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValue( table ) {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( table.getAttribute( this.attributeName ) );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tableborderwidthcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { addDefaultUnitToNumericValue, getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table width border command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBorderWidth'` editor command.\n *\n * To change the border width of the selected table, execute the command:\n *\n *\t\teditor.execute( 'tableBorderWidth', {\n *\t\t\tvalue: '5px'\n *\t\t} );\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n *\t\teditor.execute( 'tableBorderWidth', {\n *\t\t\tvalue: '5'\n *\t\t} );\n *\n * will set the `borderWidth` attribute to `'5px'` in the model.\n *\n * @extends module:table/tableproperties/commands/tablepropertycommand~TablePropertyCommand\n */\nexport default class TableBorderWidthCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBorderWidthCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableBorderWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValue( table ) {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( table.getAttribute( this.attributeName ) );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValueToSet( value ) {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablewidthcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\n\n/**\n * The table width command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableWidth'` editor command.\n *\n * To change the width of the selected table, execute the command:\n *\n *\t\teditor.execute( 'tableWidth', {\n *\t\t\tvalue: '400px'\n *\t\t} );\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n *\t\teditor.execute( 'tableWidth', {\n *\t\t\tvalue: '50'\n *\t\t} );\n *\n * will set the `width` attribute to `'50px'` in the model.\n *\n * @extends module:table/tableproperties/commands/tablepropertycommand~TablePropertyCommand\n */\nexport default class TableWidthCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableWidthCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValueToSet( value ) {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tableheightcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\n\n/**\n * The table height command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableHeight'` editor command.\n *\n * To change the height of the selected table, execute the command:\n *\n *\t\teditor.execute( 'tableHeight', {\n *\t\t\tvalue: '500px'\n *\t\t} );\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n *\t\teditor.execute( 'tableHeight', {\n *\t\t\tvalue: '50'\n *\t\t} );\n *\n * will set the `height` attribute to `'50px'` in the model.\n *\n * @extends module:table/tableproperties/commands/tablepropertycommand~TablePropertyCommand\n */\nexport default class TableHeightCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableHeightCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableHeight', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValueToSet( value ) {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablealignmentcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\n\n/**\n * The table alignment command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableAlignment'` editor command.\n *\n * To change the alignment of the selected table, execute the command:\n *\n *\t\teditor.execute( 'tableAlignment', {\n *\t\t\tvalue: 'right'\n *\t\t} );\n *\n * @extends module:table/tableproperties/commands/tablepropertycommand~TablePropertyCommand\n */\nexport default class TableAlignmentCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableAlignmentCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value for the \"alignment\" attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableAlignment', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/tablepropertiesediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { addBackgroundRules, addBorderRules } from 'ckeditor5/src/engine';\n\nimport TableEditing from '../tableediting';\nimport {\n\tdowncastAttributeToStyle,\n\tdowncastTableAttribute,\n\tupcastBorderStyles,\n\tupcastStyleToAttribute\n} from '../converters/tableproperties';\nimport TableBackgroundColorCommand from './commands/tablebackgroundcolorcommand';\nimport TableBorderColorCommand from './commands/tablebordercolorcommand';\nimport TableBorderStyleCommand from './commands/tableborderstylecommand';\nimport TableBorderWidthCommand from './commands/tableborderwidthcommand';\nimport TableWidthCommand from './commands/tablewidthcommand';\nimport TableHeightCommand from './commands/tableheightcommand';\nimport TableAlignmentCommand from './commands/tablealignmentcommand';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\n\nconst ALIGN_VALUES_REG_EXP = /^(left|center|right)$/;\nconst FLOAT_VALUES_REG_EXP = /^(left|none|right)$/;\n\n/**\n * The table properties editing feature.\n *\n * Introduces table's model attributes and their conversion:\n *\n * - border: `tableBorderStyle`, `tableBorderColor` and `tableBorderWidth`\n * - background color: `tableBackgroundColor`\n * - horizontal alignment: `tableAlignment`\n * - width & height: `tableWidth` & `tableHeight`\n *\n * It also registers commands used to manipulate the above attributes:\n *\n * - border: `'tableBorderStyle'`, `'tableBorderColor'` and `'tableBorderWidth'` commands\n * - background color: `'tableBackgroundColor'`\n * - horizontal alignment: `'tableAlignment'`\n * - width & height: `'tableWidth'` & `'tableHeight'`\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TablePropertiesEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TablePropertiesEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableEditing ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst conversion = editor.conversion;\n\n\t\teditor.config.define( 'table.tableProperties.defaultProperties', {} );\n\n\t\tconst defaultTableProperties = getNormalizedDefaultProperties( editor.config.get( 'table.tableProperties.defaultProperties' ), {\n\t\t\tincludeAlignmentProperty: true\n\t\t} );\n\n\t\teditor.data.addStyleProcessorRules( addBorderRules );\n\t\tenableBorderProperties( schema, conversion, {\n\t\t\tcolor: defaultTableProperties.borderColor,\n\t\t\tstyle: defaultTableProperties.borderStyle,\n\t\t\twidth: defaultTableProperties.borderWidth\n\t\t} );\n\t\teditor.commands.add( 'tableBorderColor', new TableBorderColorCommand( editor, defaultTableProperties.borderColor ) );\n\t\teditor.commands.add( 'tableBorderStyle', new TableBorderStyleCommand( editor, defaultTableProperties.borderStyle ) );\n\t\teditor.commands.add( 'tableBorderWidth', new TableBorderWidthCommand( editor, defaultTableProperties.borderWidth ) );\n\n\t\tenableAlignmentProperty( schema, conversion, defaultTableProperties.alignment );\n\t\teditor.commands.add( 'tableAlignment', new TableAlignmentCommand( editor, defaultTableProperties.alignment ) );\n\n\t\tenableTableToFigureProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableWidth',\n\t\t\tstyleName: 'width',\n\t\t\tdefaultValue: defaultTableProperties.width\n\t\t} );\n\t\teditor.commands.add( 'tableWidth', new TableWidthCommand( editor, defaultTableProperties.width ) );\n\n\t\tenableTableToFigureProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableHeight',\n\t\t\tstyleName: 'height',\n\t\t\tdefaultValue: defaultTableProperties.height\n\t\t} );\n\t\teditor.commands.add( 'tableHeight', new TableHeightCommand( editor, defaultTableProperties.height ) );\n\n\t\teditor.data.addStyleProcessorRules( addBackgroundRules );\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableBackgroundColor',\n\t\t\tstyleName: 'background-color',\n\t\t\tdefaultValue: defaultTableProperties.backgroundColor\n\t\t} );\n\t\teditor.commands.add(\n\t\t\t'tableBackgroundColor',\n\t\t\tnew TableBackgroundColorCommand( editor, defaultTableProperties.backgroundColor )\n\t\t);\n\t}\n}\n\n// Enables `tableBorderStyle'`, `tableBorderColor'` and `tableBorderWidth'` attributes for table.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/conversion/conversion~Conversion} conversion\n// @param {Object} defaultBorder The default border values.\n// @param {String} defaultBorder.color The default `tableBorderColor` value.\n// @param {String} defaultBorder.style The default `tableBorderStyle` value.\n// @param {String} defaultBorder.width The default `tableBorderWidth` value.\nfunction enableBorderProperties( schema, conversion, defaultBorder ) {\n\tconst modelAttributes = {\n\t\twidth: 'tableBorderWidth',\n\t\tcolor: 'tableBorderColor',\n\t\tstyle: 'tableBorderStyle'\n\t};\n\n\tschema.extend( 'table', {\n\t\tallowAttributes: Object.values( modelAttributes )\n\t} );\n\n\tupcastBorderStyles( conversion, 'table', modelAttributes, defaultBorder );\n\n\tdowncastTableAttribute( conversion, { modelAttribute: modelAttributes.color, styleName: 'border-color' } );\n\tdowncastTableAttribute( conversion, { modelAttribute: modelAttributes.style, styleName: 'border-style' } );\n\tdowncastTableAttribute( conversion, { modelAttribute: modelAttributes.width, styleName: 'border-width' } );\n}\n\n// Enables the `'alignment'` attribute for table.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/conversion/conversion~Conversion} conversion\n// @param {String} defaultValue The default alignment value.\nfunction enableAlignmentProperty( schema, conversion, defaultValue ) {\n\tschema.extend( 'table', {\n\t\tallowAttributes: [ 'tableAlignment' ]\n\t} );\n\n\tconversion.for( 'downcast' )\n\t\t.attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tkey: 'tableAlignment'\n\t\t\t},\n\t\t\tview: alignment => ( {\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\t// Model: `alignment:center` => CSS: `float:none`.\n\t\t\t\t\tfloat: alignment === 'center' ? 'none' : alignment\n\t\t\t\t}\n\t\t\t} ),\n\t\t\tconverterPriority: 'high'\n\t\t} );\n\n\tconversion.for( 'upcast' )\n\t\t// Support for the `float:*;` CSS definition for the table alignment.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(table|figure)$/,\n\t\t\t\tstyles: {\n\t\t\t\t\tfloat: FLOAT_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableAlignment',\n\t\t\t\tvalue: viewElement => {\n\t\t\t\t\tlet align = viewElement.getStyle( 'float' );\n\n\t\t\t\t\t// CSS: `float:none` => Model: `alignment:center`.\n\t\t\t\t\tif ( align === 'none' ) {\n\t\t\t\t\t\talign = 'center';\n\t\t\t\t\t}\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} )\n\t\t// Support for the `align` attribute as the backward compatibility while pasting from other sources.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tattributes: {\n\t\t\t\t\talign: ALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tkey: 'tableAlignment',\n\t\t\t\tvalue: viewElement => {\n\t\t\t\t\tconst align = viewElement.getAttribute( 'align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n}\n\n// Enables conversion for an attribute for simple view-model mappings.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/conversion/conversion~Conversion} conversion\n// @param {Object} options\n// @param {String} options.modelAttribute\n// @param {String} options.styleName\n// @param {String} options.defaultValue The default value for the specified `modelAttribute`.\nfunction enableProperty( schema, conversion, options ) {\n\tconst { modelAttribute } = options;\n\n\tschema.extend( 'table', {\n\t\tallowAttributes: [ modelAttribute ]\n\t} );\n\tupcastStyleToAttribute( conversion, { viewElement: 'table', ...options } );\n\tdowncastTableAttribute( conversion, options );\n}\n\n// Enables conversion for an attribute for simple view (figure) to model (table) mappings.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/conversion/conversion~Conversion} conversion\n// @param {Object} options\n// @param {String} options.modelAttribute\n// @param {String} options.styleName\nfunction enableTableToFigureProperty( schema, conversion, options ) {\n\tconst { modelAttribute } = options;\n\n\tschema.extend( 'table', {\n\t\tallowAttributes: [ modelAttribute ]\n\t} );\n\n\tupcastStyleToAttribute( conversion, {\n\t\tviewElement: /^(table|figure)$/,\n\t\tshouldUpcast: element => !( element.name == 'table' && element.parent.name == 'figure' ),\n\t\t...options\n\t} );\n\n\tdowncastAttributeToStyle( conversion, { modelElement: 'table', ...options } );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./colorinput.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/ui/colorinputview\n */\n\nimport { View, InputTextView, ButtonView, createDropdown, ColorGridView, FocusCycler, ViewCollection } from 'ckeditor5/src/ui';\nimport { icons } from 'ckeditor5/src/core';\nimport { FocusTracker, KeystrokeHandler } from 'ckeditor5/src/utils';\n\nimport '../../theme/colorinput.css';\n\n/**\n * The color input view class. It allows the user to type in a color (hex, rgb, etc.)\n * or choose it from the configurable color palette with a preview.\n *\n * @private\n * @extends module:ui/view~View\n */\nexport default class ColorInputView extends View {\n\t/**\n\t * Creates an instance of the color input view.\n\t *\n\t * @param {module:utils/locale~Locale} locale The locale instance.\n\t * @param {Object} options The input options.\n\t * @param {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>} options.colorDefinitions The colors to be displayed\n\t * in the palette inside the input's dropdown.\n\t * @param {Number} options.columns The number of columns in which the colors will be displayed.\n\t * @param {String} [options.defaultColorValue] If specified, the color input view will replace the \"Remove color\" button with\n\t * the \"Restore default\" button. Instead of clearing the input field, the default color value will be set.\n\t */\n\tconstructor( locale, options ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * The value of the input.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #value\n\t\t * @default ''\n\t\t */\n\t\tthis.set( 'value', '' );\n\n\t\t/**\n\t\t * Controls whether the input view is in read-only mode.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isReadOnly\n\t\t * @default false\n\t\t */\n\t\tthis.set( 'isReadOnly', false );\n\n\t\t/**\n\t\t * An observable flag set to `true` when the input is focused by the user.\n\t\t * `false` otherwise.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isFocused\n\t\t * @default false\n\t\t */\n\t\tthis.set( 'isFocused', false );\n\n\t\t/**\n\t\t * An observable flag set to `true` when the input contains no text.\n\t\t *\n\t\t * @readonly\n\t\t * @observable\n\t\t * @member {Boolean} #isEmpty\n\t\t * @default true\n\t\t */\n\t\tthis.set( 'isEmpty', true );\n\n\t\t/**\n\t\t * A cached reference to the options passed to the constructor.\n\t\t *\n\t\t * @member {Object}\n\t\t */\n\t\tthis.options = options;\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * A collection of views that can be focused in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * An instance of the dropdown allowing to select a color from a grid.\n\t\t *\n\t\t * @member {module:ui/dropdown/dropdown~DropdownView}\n\t\t */\n\t\tthis.dropdownView = this._createDropdownView();\n\n\t\t/**\n\t\t * An instance of the input allowing the user to type a color value.\n\t\t *\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.inputView = this._createInputTextView();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * The flag that indicates whether the user is still typing.\n\t\t * If set to true, it means that the text input field ({@link #inputView}) still has the focus.\n\t\t * So, we should interrupt the user by replacing the input's value.\n\t\t *\n\t\t * @protected\n\t\t * @member {Boolean}\n\t\t */\n\t\tthis._stillTyping = false;\n\n\t\t/**\n\t\t * Helps cycling over focusable items in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate items backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate items forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-input-color'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis.dropdownView,\n\t\t\t\tthis.inputView\n\t\t\t]\n\t\t} );\n\n\t\tthis.on( 'change:value', ( evt, name, inputValue ) => this._setInputValue( inputValue ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\t// Start listening for the keystrokes coming from the dropdown panel view.\n\t\tthis.keystrokes.listenTo( this.dropdownView.panelView.element );\n\t}\n\n\t/**\n\t * Focuses the input.\n\t */\n\tfocus() {\n\t\tthis.inputView.focus();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Creates and configures the {@link #dropdownView}.\n\t *\n\t * @private\n\t */\n\t_createDropdownView() {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst bind = this.bindTemplate;\n\t\tconst colorGrid = this._createColorGrid( locale );\n\t\tconst dropdown = createDropdown( locale );\n\t\tconst colorPreview = new View();\n\t\tconst removeColorButton = this._createRemoveColorButton();\n\n\t\tcolorPreview.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-input-color__button__preview'\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\tbackgroundColor: bind.to( 'value' )\n\t\t\t\t}\n\t\t\t},\n\t\t\tchildren: [ {\n\t\t\t\ttag: 'span',\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t'ck-input-color__button__preview__no-color-indicator',\n\t\t\t\t\t\tbind.if( 'value', 'ck-hidden', value => value != '' )\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} ]\n\t\t} );\n\n\t\tdropdown.buttonView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-input-color__button'\n\t\t\t}\n\t\t} );\n\n\t\tdropdown.buttonView.children.add( colorPreview );\n\t\tdropdown.buttonView.label = t( 'Color picker' );\n\t\tdropdown.buttonView.tooltip = true;\n\n\t\tdropdown.panelPosition = locale.uiLanguageDirection === 'rtl' ? 'se' : 'sw';\n\t\tdropdown.panelView.children.add( removeColorButton );\n\t\tdropdown.panelView.children.add( colorGrid );\n\t\tdropdown.bind( 'isEnabled' ).to( this, 'isReadOnly', value => !value );\n\n\t\tthis._focusables.add( removeColorButton );\n\t\tthis._focusables.add( colorGrid );\n\n\t\tthis.focusTracker.add( removeColorButton.element );\n\t\tthis.focusTracker.add( colorGrid.element );\n\n\t\treturn dropdown;\n\t}\n\n\t/**\n\t * Creates and configures an instance of {@link module:ui/inputtext/inputtextview~InputTextView}.\n\t *\n\t * @private\n\t * @returns {module:ui/inputtext/inputtextview~InputTextView} A configured instance to be set as {@link #inputView}.\n\t */\n\t_createInputTextView() {\n\t\tconst locale = this.locale;\n\t\tconst inputView = new InputTextView( locale );\n\n\t\tinputView.extendTemplate( {\n\t\t\ton: {\n\t\t\t\tblur: inputView.bindTemplate.to( 'blur' )\n\t\t\t}\n\t\t} );\n\n\t\tinputView.value = this.value;\n\t\tinputView.bind( 'isReadOnly', 'hasError' ).to( this );\n\t\tthis.bind( 'isFocused', 'isEmpty' ).to( inputView );\n\n\t\tinputView.on( 'input', () => {\n\t\t\tconst inputValue = inputView.element.value;\n\t\t\t// Check if the value matches one of our defined colors' label.\n\t\t\tconst mappedColor = this.options.colorDefinitions.find( def => inputValue === def.label );\n\n\t\t\tthis._stillTyping = true;\n\t\t\tthis.value = mappedColor && mappedColor.color || inputValue;\n\t\t} );\n\n\t\tinputView.on( 'blur', () => {\n\t\t\tthis._stillTyping = false;\n\t\t\tthis._setInputValue( inputView.element.value );\n\t\t} );\n\n\t\tinputView.delegate( 'input' ).to( this );\n\n\t\treturn inputView;\n\t}\n\n\t/**\n\t * Creates and configures the button that clears the color.\n\t *\n\t * @private\n\t */\n\t_createRemoveColorButton() {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst removeColorButton = new ButtonView( locale );\n\t\tconst defaultColor = this.options.defaultColorValue || '';\n\t\tconst removeColorButtonLabel = defaultColor ? t( 'Restore default' ) : t( 'Remove color' );\n\n\t\tremoveColorButton.class = 'ck-input-color__remove-color';\n\t\tremoveColorButton.withText = true;\n\t\tremoveColorButton.icon = icons.eraser;\n\t\tremoveColorButton.label = removeColorButtonLabel;\n\t\tremoveColorButton.on( 'execute', () => {\n\t\t\tthis.value = defaultColor;\n\t\t\tthis.dropdownView.isOpen = false;\n\t\t\tthis.fire( 'input' );\n\t\t} );\n\n\t\treturn removeColorButton;\n\t}\n\n\t/**\n\t * Creates and configures the color grid inside the {@link #dropdownView}.\n\t *\n\t * @private\n\t */\n\t_createColorGrid( locale ) {\n\t\tconst colorGrid = new ColorGridView( locale, {\n\t\t\tcolorDefinitions: this.options.colorDefinitions,\n\t\t\tcolumns: this.options.columns\n\t\t} );\n\n\t\tcolorGrid.on( 'execute', ( evtData, data ) => {\n\t\t\tthis.value = data.value;\n\t\t\tthis.dropdownView.isOpen = false;\n\t\t\tthis.fire( 'input' );\n\t\t} );\n\t\tcolorGrid.bind( 'selectedColor' ).to( this, 'value' );\n\n\t\treturn colorGrid;\n\t}\n\n\t/**\n\t * Sets {@link #inputView}'s value property to the color value or color label,\n\t * if there is one and the user is not typing.\n\t *\n\t * Handles cases like:\n\t *\n\t * * Someone picks the color in the grid.\n\t * * The color is set from the plugin level.\n\t *\n\t * @private\n\t * @param {String} inputValue Color value to be set.\n\t */\n\t_setInputValue( inputValue ) {\n\t\tif ( !this._stillTyping ) {\n\t\t\tconst normalizedInputValue = normalizeColor( inputValue );\n\t\t\t// Check if the value matches one of our defined colors.\n\t\t\tconst mappedColor = this.options.colorDefinitions.find( def => normalizedInputValue === normalizeColor( def.color ) );\n\n\t\t\tif ( mappedColor ) {\n\t\t\t\tthis.inputView.value = mappedColor.label;\n\t\t\t} else {\n\t\t\t\tthis.inputView.value = inputValue || '';\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Normalizes color value, by stripping extensive whitespace.\n// For example., transforms:\n// * `   rgb(  25 50    0 )` to `rgb(25 50 0)`,\n// * \"\\t  rgb(  25 ,  50,0 )\t\t\" to `rgb(25 50 0)`.\n//\n// @param {String} colorString The value to be normalized.\n// @returns {String}\nfunction normalizeColor( colorString ) {\n\treturn colorString\n\t\t// Remove any whitespace right after `(` or `,`.\n\t\t.replace( /([(,])\\s+/g, '$1' )\n\t\t// Remove any whitespace at the beginning or right before the end, `)`, `,`, or another whitespace.\n\t\t.replace( /^\\s+|\\s+(?=[),\\s]|$)/g, '' )\n\t\t// Then, replace `,` or whitespace with a single space.\n\t\t.replace( /,|\\s/g, ' ' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/ui/table-properties\n */\n\nimport { ButtonView, Model } from 'ckeditor5/src/ui';\nimport { Collection } from 'ckeditor5/src/utils';\nimport { isColor, isLength, isPercentage } from 'ckeditor5/src/engine';\n\nimport ColorInputView from '../../ui/colorinputview';\n\nconst isEmpty = val => val === '';\n\n/**\n * Returns an object containing pairs of CSS border style values and their localized UI\n * labels. Used by {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView}\n * and {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView}.\n *\n * @param {module:utils/locale~Locale#t} t The \"t\" function provided by the editor\n * that is used to localize strings.\n * @returns {Object.<String,String>}\n */\nexport function getBorderStyleLabels( t ) {\n\treturn {\n\t\tnone: t( 'None' ),\n\t\tsolid: t( 'Solid' ),\n\t\tdotted: t( 'Dotted' ),\n\t\tdashed: t( 'Dashed' ),\n\t\tdouble: t( 'Double' ),\n\t\tgroove: t( 'Groove' ),\n\t\tridge: t( 'Ridge' ),\n\t\tinset: t( 'Inset' ),\n\t\toutset: t( 'Outset' )\n\t};\n}\n\n/**\n * Returns a localized error string that can be displayed next to color (background, border)\n * fields that have an invalid value.\n *\n * @param {module:utils/locale~Locale#t} t The \"t\" function provided by the editor\n * that is used to localize strings.\n * @returns {String}\n */\nexport function getLocalizedColorErrorText( t ) {\n\treturn t( 'The color is invalid. Try \"#FF0000\" or \"rgb(255,0,0)\" or \"red\".' );\n}\n\n/**\n * Returns a localized error string that can be displayed next to length (padding, border width)\n * fields that have an invalid value.\n *\n * @param {module:utils/locale~Locale#t} t The \"t\" function provided by the editor\n * that is used to localize strings.\n * @returns {String}\n */\nexport function getLocalizedLengthErrorText( t ) {\n\treturn t( 'The value is invalid. Try \"10px\" or \"2em\" or simply \"2\".' );\n}\n\n/**\n * Returns `true` when the passed value is an empty string or a valid CSS color expression.\n * Otherwise, `false` is returned.\n *\n * See {@link module:engine/view/styles/utils~isColor}.\n *\n * @param {String} value\n * @returns {Boolean}\n */\nexport function colorFieldValidator( value ) {\n\tvalue = value.trim();\n\n\treturn isEmpty( value ) || isColor( value );\n}\n\n/**\n * Returns `true` when the passed value is an empty string, a number without a unit or a valid CSS length expression.\n * Otherwise, `false` is returned.\n *\n * See {@link module:engine/view/styles/utils~isLength}.\n * See {@link module:engine/view/styles/utils~isPercentage}.\n *\n * @param {String} value\n * @returns {Boolean}\n */\nexport function lengthFieldValidator( value ) {\n\tvalue = value.trim();\n\n\treturn isEmpty( value ) || isNumberString( value ) || isLength( value ) || isPercentage( value );\n}\n\n/**\n * Returns `true` when the passed value is an empty string, a number without a unit or a valid CSS length expression.\n * Otherwise, `false` is returned.\n *\n * See {@link module:engine/view/styles/utils~isLength}.\n *\n * @param {String} value\n * @returns {Boolean}\n */\nexport function lineWidthFieldValidator( value ) {\n\tvalue = value.trim();\n\n\treturn isEmpty( value ) || isNumberString( value ) || isLength( value );\n}\n\n/**\n * Generates item definitions for a UI dropdown that allows changing the border style of a table or a table cell.\n *\n * @param {module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView|\n * module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView} view\n * @param {String} defaultStyle The default border.\n * @returns {Iterable.<module:ui/dropdown/utils~ListDropdownItemDefinition>}\n */\nexport function getBorderStyleDefinitions( view, defaultStyle ) {\n\tconst itemDefinitions = new Collection();\n\tconst styleLabels = getBorderStyleLabels( view.t );\n\n\tfor ( const style in styleLabels ) {\n\t\tconst definition = {\n\t\t\ttype: 'button',\n\t\t\tmodel: new Model( {\n\t\t\t\t_borderStyleValue: style,\n\t\t\t\tlabel: styleLabels[ style ],\n\t\t\t\twithText: true\n\t\t\t} )\n\t\t};\n\n\t\tif ( style === 'none' ) {\n\t\t\tdefinition.model.bind( 'isOn' ).to( view, 'borderStyle', value => {\n\t\t\t\tif ( defaultStyle === 'none' ) {\n\t\t\t\t\treturn !value;\n\t\t\t\t}\n\n\t\t\t\treturn value === style;\n\t\t\t} );\n\t\t} else {\n\t\t\tdefinition.model.bind( 'isOn' ).to( view, 'borderStyle', value => {\n\t\t\t\treturn value === style;\n\t\t\t} );\n\t\t}\n\n\t\titemDefinitions.add( definition );\n\t}\n\n\treturn itemDefinitions;\n}\n\n/**\n * A helper that fills a toolbar with buttons that:\n *\n * * have some labels,\n * * have some icons,\n * * set a certain UI view property value upon execution.\n *\n * @param {Object} options\n * @param {module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView|\n * module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView} options.view\n * @param {Array.<String>} options.icons\n * @param {module:ui/toolbar/toolbarview~ToolbarView} options.toolbar\n * @param {Object.<String,String>} labels\n * @param {String} propertyName\n * @param {Function} nameToValue A function that maps a button name to a value. By default names are the same as values.\n */\nexport function fillToolbar( options ) {\n\tconst { view, icons, toolbar, labels, propertyName, nameToValue, defaultValue } = options;\n\tfor ( const name in labels ) {\n\t\tconst button = new ButtonView( view.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel: labels[ name ],\n\t\t\ticon: icons[ name ],\n\t\t\ttooltip: labels[ name ]\n\t\t} );\n\n\t\t// If specified the `nameToValue()` callback, map the value based on the option's name.\n\t\tconst buttonValue = nameToValue ? nameToValue( name ) : name;\n\n\t\tbutton.bind( 'isOn' ).to( view, propertyName, value => {\n\t\t\t// `value` comes from `view[ propertyName ]`.\n\t\t\tlet valueToCompare = value;\n\n\t\t\t// If it's empty, and the `defaultValue` is specified, use it instead.\n\t\t\tif ( value === '' && defaultValue ) {\n\t\t\t\tvalueToCompare = defaultValue;\n\t\t\t}\n\n\t\t\treturn buttonValue === valueToCompare;\n\t\t} );\n\n\t\tbutton.on( 'execute', () => {\n\t\t\tview[ propertyName ] = buttonValue;\n\t\t} );\n\n\t\ttoolbar.items.add( button );\n\t}\n}\n\n/**\n * A default color palette used by various user interfaces related to tables, for instance,\n * by {@link module:table/tablecellproperties/tablecellpropertiesui~TableCellPropertiesUI} or\n * {@link module:table/tableproperties/tablepropertiesui~TablePropertiesUI}.\n *\n * The color palette follows the {@link module:table/table~TableColorConfig table color configuration format}\n * and contains the following color definitions:\n *\n *\t\tconst defaultColors = [\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 0%)',\n *\t\t\t\tlabel: 'Black'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 30%)',\n *\t\t\t\tlabel: 'Dim grey'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n *\t\t\t\tlabel: 'Grey'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n *\t\t\t\tlabel: 'Light grey'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n *\t\t\t\tlabel: 'White',\n *\t\t\t\thasBorder: true\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 75%, 60%)',\n *\t\t\t\tlabel: 'Red'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(30, 75%, 60%)',\n *\t\t\t\tlabel: 'Orange'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(60, 75%, 60%)',\n *\t\t\t\tlabel: 'Yellow'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(90, 75%, 60%)',\n *\t\t\t\tlabel: 'Light green'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n *\t\t\t\tlabel: 'Green'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(150, 75%, 60%)',\n *\t\t\t\tlabel: 'Aquamarine'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(180, 75%, 60%)',\n *\t\t\t\tlabel: 'Turquoise'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(210, 75%, 60%)',\n *\t\t\t\tlabel: 'Light blue'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(240, 75%, 60%)',\n *\t\t\t\tlabel: 'Blue'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(270, 75%, 60%)',\n *\t\t\t\tlabel: 'Purple'\n *\t\t\t}\n *\t\t];\n */\nexport const defaultColors = [\n\t{\n\t\tcolor: 'hsl(0, 0%, 0%)',\n\t\tlabel: 'Black'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 30%)',\n\t\tlabel: 'Dim grey'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 60%)',\n\t\tlabel: 'Grey'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 90%)',\n\t\tlabel: 'Light grey'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 100%)',\n\t\tlabel: 'White',\n\t\thasBorder: true\n\t},\n\t{\n\t\tcolor: 'hsl(0, 75%, 60%)',\n\t\tlabel: 'Red'\n\t},\n\t{\n\t\tcolor: 'hsl(30, 75%, 60%)',\n\t\tlabel: 'Orange'\n\t},\n\t{\n\t\tcolor: 'hsl(60, 75%, 60%)',\n\t\tlabel: 'Yellow'\n\t},\n\t{\n\t\tcolor: 'hsl(90, 75%, 60%)',\n\t\tlabel: 'Light green'\n\t},\n\t{\n\t\tcolor: 'hsl(120, 75%, 60%)',\n\t\tlabel: 'Green'\n\t},\n\t{\n\t\tcolor: 'hsl(150, 75%, 60%)',\n\t\tlabel: 'Aquamarine'\n\t},\n\t{\n\t\tcolor: 'hsl(180, 75%, 60%)',\n\t\tlabel: 'Turquoise'\n\t},\n\t{\n\t\tcolor: 'hsl(210, 75%, 60%)',\n\t\tlabel: 'Light blue'\n\t},\n\t{\n\t\tcolor: 'hsl(240, 75%, 60%)',\n\t\tlabel: 'Blue'\n\t},\n\t{\n\t\tcolor: 'hsl(270, 75%, 60%)',\n\t\tlabel: 'Purple'\n\t}\n];\n\n/**\n * Returns a creator for a color input with a label.\n *\n * For given options, it returns a function that creates an instance of a\n * {@link module:table/ui/colorinputview~ColorInputView color input} logically related to\n * a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled view} in the DOM.\n *\n * The helper does the following:\n *\n * * It sets the color input `id` and `ariaDescribedById` attributes.\n * * It binds the color input `isReadOnly` to the labeled view.\n * * It binds the color input `hasError` to the labeled view.\n * * It enables a logic that cleans up the error when the user starts typing in the color input.\n *\n * Usage:\n *\n *\t\tconst colorInputCreator = getLabeledColorInputCreator( {\n *\t\t\tcolorConfig: [ ... ],\n *\t\t\tcolumns: 3,\n *\t\t} );\n *\n *\t\tconst labeledInputView = new LabeledFieldView( locale, colorInputCreator );\n *\t\tconsole.log( labeledInputView.view ); // A color input instance.\n *\n * @private\n * @param options Color input options.\n * @param {module:table/table~TableColorConfig} options.colorConfig The configuration of the color palette\n * displayed in the input's dropdown.\n * @param {Number} options.columns The configuration of the number of columns the color palette consists of\n * in the input's dropdown.\n * @param {String} [options.defaultColorValue] If specified, the color input view will replace the \"Remove color\" button with\n * the \"Restore default\" button. Instead of clearing the input field, the default color value will be set.\n * @returns {Function}\n */\nexport function getLabeledColorInputCreator( options ) {\n\treturn ( labeledFieldView, viewUid, statusUid ) => {\n\t\tconst colorInputView = new ColorInputView( labeledFieldView.locale, {\n\t\t\tcolorDefinitions: colorConfigToColorGridDefinitions( options.colorConfig ),\n\t\t\tcolumns: options.columns,\n\t\t\tdefaultColorValue: options.defaultColorValue\n\t\t} );\n\n\t\tcolorInputView.inputView.set( {\n\t\t\tid: viewUid,\n\t\t\tariaDescribedById: statusUid\n\t\t} );\n\n\t\tcolorInputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n\t\tcolorInputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n\n\t\tcolorInputView.on( 'input', () => {\n\t\t\t// UX: Make the error text disappear and disable the error indicator as the user\n\t\t\t// starts fixing the errors.\n\t\t\tlabeledFieldView.errorText = null;\n\t\t} );\n\n\t\tlabeledFieldView.bind( 'isEmpty', 'isFocused' ).to( colorInputView );\n\n\t\treturn colorInputView;\n\t};\n}\n\n// A simple helper method to detect number strings.\n// I allows full number notation, so omitting 0 is not allowed:\nfunction isNumberString( value ) {\n\tconst parsedValue = parseFloat( value );\n\n\treturn !Number.isNaN( parsedValue ) && value === String( parsedValue );\n}\n\n// @param {Array.<Object>} colorConfig\n// @returns {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>}\nfunction colorConfigToColorGridDefinitions( colorConfig ) {\n\treturn colorConfig.map( item => ( {\n\t\tcolor: item.model,\n\t\tlabel: item.label,\n\t\toptions: {\n\t\t\thasBorder: item.hasBorder\n\t\t}\n\t} ) );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./formrow.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/ui/formrowview\n */\n\nimport { View } from 'ckeditor5/src/ui';\n\nimport '../../theme/formrow.css';\n\n/**\n * The class representing a single row in a complex form,\n * used by {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView}.\n *\n * **Note**: For now this class is private. When more use cases arrive (beyond ckeditor5-table),\n * it will become a component in ckeditor5-ui.\n *\n * @private\n * @extends module:ui/view~View\n */\nexport default class FormRowView extends View {\n\t/**\n\t * Creates an instance of the form row class.\n\t *\n\t * @param {module:utils/locale~Locale} locale The locale instance.\n\t * @param {Object} options\n\t * @param {Array.<module:ui/view~View>} options.children\n\t * @param {String} [options.class]\n\t * @param {module:ui/view~View} [options.labelView] When passed, the row gets the `group` and `aria-labelledby`\n\t * DOM attributes and gets described by the label.\n\t */\n\tconstructor( locale, options = {} ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t/**\n\t\t * An additional CSS class added to the {@link #element}.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #class\n\t\t */\n\t\tthis.set( 'class', options.class || null );\n\n\t\t/**\n\t\t * A collection of row items (buttons, dropdowns, etc.).\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\tif ( options.children ) {\n\t\t\toptions.children.forEach( child => this.children.add( child ) );\n\t\t}\n\n\t\t/**\n\t\t * The role property reflected by the `role` DOM attribute of the {@link #element}.\n\t\t *\n\t\t * **Note**: Used only when a `labelView` is passed to constructor `options`.\n\t\t *\n\t\t * @private\n\t\t * @observable\n\t\t * @member {String} #role\n\t\t */\n\t\tthis.set( '_role', null );\n\n\t\t/**\n\t\t * The ARIA property reflected by the `aria-labelledby` DOM attribute of the {@link #element}.\n\t\t *\n\t\t * **Note**: Used only when a `labelView` is passed to constructor `options`.\n\t\t *\n\t\t * @private\n\t\t * @observable\n\t\t * @member {String} #ariaLabelledBy\n\t\t */\n\t\tthis.set( '_ariaLabelledBy', null );\n\n\t\tif ( options.labelView ) {\n\t\t\tthis.set( {\n\t\t\t\t_role: 'group',\n\t\t\t\t_ariaLabelledBy: options.labelView.id\n\t\t\t} );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form__row',\n\t\t\t\t\tbind.to( 'class' )\n\t\t\t\t],\n\t\t\t\trole: bind.to( '_role' ),\n\t\t\t\t'aria-labelledby': bind.to( '_ariaLabelledBy' )\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./form.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableproperties.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/ui/tablepropertiesview\n */\n\nimport {\n\tButtonView,\n\tFocusCycler,\n\tFormHeaderView,\n\tLabelView,\n\tLabeledFieldView,\n\tToolbarView,\n\tView,\n\tViewCollection,\n\taddListToDropdown,\n\tcreateLabeledDropdown,\n\tcreateLabeledInputText,\n\tsubmitHandler\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport {\n\tfillToolbar,\n\tgetBorderStyleDefinitions,\n\tgetBorderStyleLabels,\n\tgetLabeledColorInputCreator\n} from '../../utils/ui/table-properties';\nimport FormRowView from '../../ui/formrowview';\n\nimport '../../../theme/form.css';\nimport '../../../theme/tableform.css';\nimport '../../../theme/tableproperties.css';\n\nconst ALIGNMENT_ICONS = {\n\tleft: icons.objectLeft,\n\tcenter: icons.objectCenter,\n\tright: icons.objectRight\n};\n\n/**\n * The class representing a table properties form, allowing users to customize\n * certain style aspects of a table, for instance, border, background color, alignment, etc..\n *\n * @extends module:ui/view~View\n */\nexport default class TablePropertiesView extends View {\n\t/**\n\t * @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param {Object} options Additional configuration of the view.\n\t * @param {module:table/table~TableColorConfig} options.borderColors A configuration of the border\n\t * color palette used by the\n\t * {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView#borderColorInput}.\n\t * @param {module:table/table~TableColorConfig} options.backgroundColors A configuration of the background\n\t * color palette used by the\n\t * {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView#backgroundInput}.\n\t * @param {module:table/tableproperties~TablePropertiesOptions} options.defaultTableProperties The default table properties.\n\t */\n\tconstructor( locale, options ) {\n\t\tsuper( locale );\n\n\t\tthis.set( {\n\t\t\t/**\n\t\t\t * The value of the border style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #borderStyle\n\t\t\t */\n\t\t\tborderStyle: '',\n\n\t\t\t/**\n\t\t\t * The value of the border width style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #borderWidth\n\t\t\t */\n\t\t\tborderWidth: '',\n\n\t\t\t/**\n\t\t\t * The value of the border color style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #borderColor\n\t\t\t */\n\t\t\tborderColor: '',\n\n\t\t\t/**\n\t\t\t * The value of the background color style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #backgroundColor\n\t\t\t */\n\t\t\tbackgroundColor: '',\n\n\t\t\t/**\n\t\t\t * The value of the table width style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #width\n\t\t\t */\n\t\t\twidth: '',\n\n\t\t\t/**\n\t\t\t * The value of the table height style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #height\n\t\t\t */\n\t\t\theight: '',\n\n\t\t\t/**\n\t\t\t * The value of the table alignment style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #alignment\n\t\t\t */\n\t\t\talignment: ''\n\t\t} );\n\n\t\t/**\n\t\t * Options passed to the view. See {@link #constructor} to learn more.\n\t\t *\n\t\t * @protected\n\t\t * @member {Object}\n\t\t */\n\t\tthis.options = options;\n\n\t\tconst { borderStyleDropdown, borderWidthInput, borderColorInput, borderRowLabel } = this._createBorderFields();\n\t\tconst { backgroundRowLabel, backgroundInput } = this._createBackgroundFields();\n\t\tconst { widthInput, operatorLabel, heightInput, dimensionsLabel } = this._createDimensionFields();\n\t\tconst { alignmentToolbar, alignmentLabel } = this._createAlignmentFields();\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * A collection of child views in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\t/**\n\t\t * A dropdown that allows selecting the style of the table border.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/dropdown/dropdownview~DropdownView}\n\t\t */\n\t\tthis.borderStyleDropdown = borderStyleDropdown;\n\n\t\t/**\n\t\t * An input that allows specifying the width of the table border.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.borderWidthInput = borderWidthInput;\n\n\t\t/**\n\t\t * An input that allows specifying the color of the table border.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:table/ui/colorinputview~ColorInputView}\n\t\t */\n\t\tthis.borderColorInput = borderColorInput;\n\n\t\t/**\n\t\t * An input that allows specifying the table background color.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:table/ui/colorinputview~ColorInputView}\n\t\t */\n\t\tthis.backgroundInput = backgroundInput;\n\n\t\t/**\n\t\t * An input that allows specifying the table width.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.widthInput = widthInput;\n\n\t\t/**\n\t\t * An input that allows specifying the table height.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.heightInput = heightInput;\n\n\t\t/**\n\t\t * A toolbar with buttons that allow changing the alignment of an entire table.\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ToolbarView}\n\t\t */\n\t\tthis.alignmentToolbar = alignmentToolbar;\n\n\t\t// Defer creating to make sure other fields are present and the Save button can\n\t\t// bind its #isEnabled to their error messages so there's no way to save unless all\n\t\t// fields are valid.\n\t\tconst { saveButtonView, cancelButtonView } = this._createActionButtons();\n\n\t\t/**\n\t\t * The \"Save\" button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.saveButtonView = saveButtonView;\n\n\t\t/**\n\t\t * The \"Cancel\" button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.cancelButtonView = cancelButtonView;\n\n\t\t/**\n\t\t * A collection of views that can be focused in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Helps cycling over {@link #_focusables} in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\t// Form header.\n\t\tthis.children.add( new FormHeaderView( locale, {\n\t\t\tlabel: this.t( 'Table properties' )\n\t\t} ) );\n\n\t\t// Border row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: borderRowLabel,\n\t\t\tchildren: [\n\t\t\t\tborderRowLabel,\n\t\t\t\tborderStyleDropdown,\n\t\t\t\tborderColorInput,\n\t\t\t\tborderWidthInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__border-row'\n\t\t} ) );\n\n\t\t// Background row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: backgroundRowLabel,\n\t\t\tchildren: [\n\t\t\t\tbackgroundRowLabel,\n\t\t\t\tbackgroundInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__background-row'\n\t\t} ) );\n\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\t// Dimensions row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tlabelView: dimensionsLabel,\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tdimensionsLabel,\n\t\t\t\t\t\twidthInput,\n\t\t\t\t\t\toperatorLabel,\n\t\t\t\t\t\theightInput\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-form__dimensions-row'\n\t\t\t\t} ),\n\t\t\t\t// Alignment row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tlabelView: alignmentLabel,\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\talignmentLabel,\n\t\t\t\t\t\talignmentToolbar\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-properties-form__alignment-row'\n\t\t\t\t} )\n\t\t\t]\n\t\t} ) );\n\n\t\t// Action row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t],\n\t\t\tclass: 'ck-table-form__action-row'\n\t\t} ) );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form',\n\t\t\t\t\t'ck-table-form',\n\t\t\t\t\t'ck-table-properties-form'\n\t\t\t\t],\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\t// Enable the \"submit\" event for this view. It can be triggered by the #saveButtonView\n\t\t// which is of the \"submit\" DOM \"type\".\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\t[\n\t\t\tthis.borderStyleDropdown,\n\t\t\tthis.borderColorInput,\n\t\t\tthis.borderColorInput.fieldView.dropdownView.buttonView,\n\t\t\tthis.borderWidthInput,\n\t\t\tthis.backgroundInput,\n\t\t\tthis.backgroundInput.fieldView.dropdownView.buttonView,\n\t\t\tthis.widthInput,\n\t\t\tthis.heightInput,\n\t\t\tthis.alignmentToolbar,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t].forEach( view => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( view );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( view.element );\n\t\t} );\n\n\t\t// Mainly for closing using \"Esc\" and navigation using \"Tab\".\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist focusable field in the form.\n\t */\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #borderStyleDropdown},\n\t * * {@link #borderWidthInput},\n\t * * {@link #borderColorInput}.\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createBorderFields() {\n\t\tconst defaultTableProperties = this.options.defaultTableProperties;\n\t\tconst defaultBorder = {\n\t\t\tstyle: defaultTableProperties.borderStyle,\n\t\t\twidth: defaultTableProperties.borderWidth,\n\t\t\tcolor: defaultTableProperties.borderColor\n\t\t};\n\n\t\tconst colorInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.borderColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: defaultBorder.color\n\t\t} );\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst borderRowLabel = new LabelView( locale );\n\t\tborderRowLabel.text = t( 'Border' );\n\n\t\t// -- Style ---------------------------------------------------\n\n\t\tconst styleLabels = getBorderStyleLabels( this.t );\n\t\tconst borderStyleDropdown = new LabeledFieldView( locale, createLabeledDropdown );\n\t\tborderStyleDropdown.set( {\n\t\t\tlabel: t( 'Style' ),\n\t\t\tclass: 'ck-table-form__border-style'\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.set( {\n\t\t\tisOn: false,\n\t\t\twithText: true,\n\t\t\ttooltip: t( 'Style' )\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.bind( 'label' ).to( this, 'borderStyle', value => {\n\t\t\treturn styleLabels[ value ? value : 'none' ];\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.on( 'execute', evt => {\n\t\t\tthis.borderStyle = evt.source._borderStyleValue;\n\t\t} );\n\n\t\tborderStyleDropdown.bind( 'isEmpty' ).to( this, 'borderStyle', value => !value );\n\n\t\taddListToDropdown( borderStyleDropdown.fieldView, getBorderStyleDefinitions( this, defaultBorder.style ) );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst borderWidthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\tborderWidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__border-width'\n\t\t} );\n\n\t\tborderWidthInput.fieldView.bind( 'value' ).to( this, 'borderWidth' );\n\t\tborderWidthInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\t\tborderWidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderWidth = borderWidthInput.fieldView.element.value;\n\t\t} );\n\n\t\t// -- Color ---------------------------------------------------\n\n\t\tconst borderColorInput = new LabeledFieldView( locale, colorInputCreator );\n\n\t\tborderColorInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-form__border-color'\n\t\t} );\n\n\t\tborderColorInput.fieldView.bind( 'value' ).to( this, 'borderColor' );\n\t\tborderColorInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\n\t\tborderColorInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderColor = borderColorInput.fieldView.value;\n\t\t} );\n\n\t\t// Reset the border color and width fields depending on the `border-style` value.\n\t\tthis.on( 'change:borderStyle', ( evt, name, newValue, oldValue ) => {\n\t\t\t// When removing the border (`border-style:none`), clear the remaining `border-*` properties.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5/issues/6227.\n\t\t\tif ( !isBorderStyleSet( newValue ) ) {\n\t\t\t\tthis.borderColor = '';\n\t\t\t\tthis.borderWidth = '';\n\t\t\t}\n\n\t\t\t// When setting the `border-style` from `none`, set the default `border-color` and `border-width` properties.\n\t\t\tif ( !isBorderStyleSet( oldValue ) ) {\n\t\t\t\tthis.borderColor = defaultBorder.color;\n\t\t\t\tthis.borderWidth = defaultBorder.width;\n\t\t\t}\n\t\t} );\n\n\t\treturn {\n\t\t\tborderRowLabel,\n\t\t\tborderStyleDropdown,\n\t\t\tborderColorInput,\n\t\t\tborderWidthInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #backgroundInput}.\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createBackgroundFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst backgroundRowLabel = new LabelView( locale );\n\t\tbackgroundRowLabel.text = t( 'Background' );\n\n\t\t// -- Background color input -----------------------------------\n\n\t\tconst backgroundInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.backgroundColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: this.options.defaultTableProperties.backgroundColor\n\t\t} );\n\n\t\tconst backgroundInput = new LabeledFieldView( locale, backgroundInputCreator );\n\n\t\tbackgroundInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-properties-form__background'\n\t\t} );\n\n\t\tbackgroundInput.fieldView.bind( 'value' ).to( this, 'backgroundColor' );\n\t\tbackgroundInput.fieldView.on( 'input', () => {\n\t\t\tthis.backgroundColor = backgroundInput.fieldView.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tbackgroundRowLabel,\n\t\t\tbackgroundInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #widthInput}.\n\t * * {@link #heightInput}.\n\t *\n\t * @private\n\t * @returns {module:ui/labeledfield/labeledfieldview~LabeledFieldView}\n\t */\n\t_createDimensionFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\t// -- Label ---------------------------------------------------\n\n\t\tconst dimensionsLabel = new LabelView( locale );\n\t\tdimensionsLabel.text = t( 'Dimensions' );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst widthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\twidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__width'\n\t\t} );\n\n\t\twidthInput.fieldView.bind( 'value' ).to( this, 'width' );\n\t\twidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.width = widthInput.fieldView.element.value;\n\t\t} );\n\n\t\t// -- Operator ---------------------------------------------------\n\n\t\tconst operatorLabel = new View( locale );\n\t\toperatorLabel.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-table-form__dimension-operator'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{ text: '×' }\n\t\t\t]\n\t\t} );\n\n\t\t// -- Height ---------------------------------------------------\n\n\t\tconst heightInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\theightInput.set( {\n\t\t\tlabel: t( 'Height' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__height'\n\t\t} );\n\n\t\theightInput.fieldView.bind( 'value' ).to( this, 'height' );\n\t\theightInput.fieldView.on( 'input', () => {\n\t\t\tthis.height = heightInput.fieldView.element.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tdimensionsLabel,\n\t\t\twidthInput,\n\t\t\toperatorLabel,\n\t\t\theightInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #alignmentToolbar},\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createAlignmentFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\t// -- Label ---------------------------------------------------\n\n\t\tconst alignmentLabel = new LabelView( locale );\n\t\talignmentLabel.text = t( 'Alignment' );\n\n\t\t// -- Toolbar ---------------------------------------------------\n\n\t\tconst alignmentToolbar = new ToolbarView( locale );\n\t\talignmentToolbar.set( {\n\t\t\tisCompact: true,\n\t\t\tariaLabel: t( 'Table alignment toolbar' )\n\t\t} );\n\n\t\tfillToolbar( {\n\t\t\tview: this,\n\t\t\ticons: ALIGNMENT_ICONS,\n\t\t\ttoolbar: alignmentToolbar,\n\t\t\tlabels: this._alignmentLabels,\n\t\t\tpropertyName: 'alignment',\n\t\t\tdefaultValue: this.options.defaultTableProperties.alignment\n\t\t} );\n\n\t\treturn {\n\t\t\talignmentLabel,\n\t\t\talignmentToolbar\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form controls:\n\t *\n\t * * {@link #saveButtonView},\n\t * * {@link #cancelButtonView}.\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createActionButtons() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\tconst saveButtonView = new ButtonView( locale );\n\t\tconst cancelButtonView = new ButtonView( locale );\n\t\tconst fieldsThatShouldValidateToSave = [\n\t\t\tthis.borderWidthInput,\n\t\t\tthis.borderColorInput,\n\t\t\tthis.backgroundInput,\n\t\t\tthis.widthInput,\n\t\t\tthis.heightInput\n\t\t];\n\n\t\tsaveButtonView.set( {\n\t\t\tlabel: t( 'Save' ),\n\t\t\ticon: icons.check,\n\t\t\tclass: 'ck-button-save',\n\t\t\ttype: 'submit',\n\t\t\twithText: true\n\t\t} );\n\n\t\tsaveButtonView.bind( 'isEnabled' ).toMany( fieldsThatShouldValidateToSave, 'errorText', ( ...errorTexts ) => {\n\t\t\treturn errorTexts.every( errorText => !errorText );\n\t\t} );\n\n\t\tcancelButtonView.set( {\n\t\t\tlabel: t( 'Cancel' ),\n\t\t\ticon: icons.cancel,\n\t\t\tclass: 'ck-button-cancel',\n\t\t\twithText: true\n\t\t} );\n\n\t\tcancelButtonView.delegate( 'execute' ).to( this, 'cancel' );\n\n\t\treturn {\n\t\t\tsaveButtonView, cancelButtonView\n\t\t};\n\t}\n\n\t/**\n\t * Provides localized labels for {@link #alignmentToolbar} buttons.\n\t *\n\t * @private\n\t * @type {Object.<String,String>}\n\t */\n\tget _alignmentLabels() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\tconst left = t( 'Align table to the left' );\n\t\tconst center = t( 'Center table' );\n\t\tconst right = t( 'Align table to the right' );\n\n\t\t// Returns object with a proper order of labels.\n\t\tif ( locale.uiLanguageDirection === 'rtl' ) {\n\t\t\treturn { right, center, left };\n\t\t} else {\n\t\t\treturn { left, center, right };\n\t\t}\n\t}\n}\n\nfunction isBorderStyleSet( value ) {\n\treturn value !== 'none';\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M8 2v5h4V2h1v5h5v1h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5H7v-5H2v-1h5V8H2V7h5V2h1zm4 6H8v4h4V8z\\\" opacity=\\\".6\\\"/><path d=\\\"m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM17 1a2 2 0 0 1 2 2v9.475l-.85-.124-.857-1.736a2.048 2.048 0 0 0-.292-.44L17 3H3v14h7.808l.402.392L10.935 19H3a2 2 0 0 1-2-2V3a2 2 0 0 1 2-2h14z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/ui/contextualballoon\n */\n\nimport { Rect } from 'ckeditor5/src/utils';\nimport { BalloonPanelView } from 'ckeditor5/src/ui';\n\nimport { getTableWidgetAncestor } from './widget';\n\nconst DEFAULT_BALLOON_POSITIONS = BalloonPanelView.defaultPositions;\n\nconst BALLOON_POSITIONS = [\n\tDEFAULT_BALLOON_POSITIONS.northArrowSouth,\n\tDEFAULT_BALLOON_POSITIONS.northArrowSouthWest,\n\tDEFAULT_BALLOON_POSITIONS.northArrowSouthEast,\n\tDEFAULT_BALLOON_POSITIONS.southArrowNorth,\n\tDEFAULT_BALLOON_POSITIONS.southArrowNorthWest,\n\tDEFAULT_BALLOON_POSITIONS.southArrowNorthEast,\n\tDEFAULT_BALLOON_POSITIONS.viewportStickyNorth\n];\n\n/**\n * A helper utility that positions the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} instance\n * with respect to the table in the editor content, if one is selected.\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n * @param {String} target Either \"cell\" or \"table\". Determines the target the balloon will\n * be attached to.\n */\nexport function repositionContextualBalloon( editor, target ) {\n\tconst balloon = editor.plugins.get( 'ContextualBalloon' );\n\n\tif ( getTableWidgetAncestor( editor.editing.view.document.selection ) ) {\n\t\tlet position;\n\n\t\tif ( target === 'cell' ) {\n\t\t\tposition = getBalloonCellPositionData( editor );\n\t\t} else {\n\t\t\tposition = getBalloonTablePositionData( editor );\n\t\t}\n\n\t\tballoon.updatePosition( position );\n\t}\n}\n\n/**\n * Returns the positioning options that control the geometry of the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} with respect\n * to the selected table in the editor content.\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n * @returns {module:utils/dom/position~Options}\n */\nexport function getBalloonTablePositionData( editor ) {\n\tconst firstPosition = editor.model.document.selection.getFirstPosition();\n\tconst modelTable = firstPosition.findAncestor( 'table' );\n\tconst viewTable = editor.editing.mapper.toViewElement( modelTable );\n\n\treturn {\n\t\ttarget: editor.editing.view.domConverter.mapViewToDom( viewTable ),\n\t\tpositions: BALLOON_POSITIONS\n\t};\n}\n\n/**\n * Returns the positioning options that control the geometry of the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} with respect\n * to the selected table cell in the editor content.\n *\n * @param {module:core/editor/editor~Editor} editor The editor instance.\n * @returns {module:utils/dom/position~Options}\n */\nexport function getBalloonCellPositionData( editor ) {\n\tconst mapper = editor.editing.mapper;\n\tconst domConverter = editor.editing.view.domConverter;\n\tconst selection = editor.model.document.selection;\n\n\tif ( selection.rangeCount > 1 ) {\n\t\treturn {\n\t\t\ttarget: () => createBoundingRect( selection.getRanges(), editor ),\n\t\t\tpositions: BALLOON_POSITIONS\n\t\t};\n\t}\n\n\tconst modelTableCell = getTableCellAtPosition( selection.getFirstPosition() );\n\tconst viewTableCell = mapper.toViewElement( modelTableCell );\n\n\treturn {\n\t\ttarget: domConverter.mapViewToDom( viewTableCell ),\n\t\tpositions: BALLOON_POSITIONS\n\t};\n}\n\n// Returns the first selected table cell from a multi-cell or in-cell selection.\n//\n// @param {module:engine/model/position~Position} position Document position.\n// @returns {module:engine/model/element~Element}\nfunction getTableCellAtPosition( position ) {\n\tconst isTableCellSelected = position.nodeAfter && position.nodeAfter.is( 'element', 'tableCell' );\n\n\treturn isTableCellSelected ? position.nodeAfter : position.findAncestor( 'tableCell' );\n}\n\n// Returns bounding rectangle for given model ranges.\n//\n// @param {Iterable.<module:engine/model/range~Range>} ranges Model ranges that the bounding rect should be returned for.\n// @param {module:core/editor/editor~Editor} editor The editor instance.\n// @returns {module:utils/dom/rect~Rect}\nfunction createBoundingRect( ranges, editor ) {\n\tconst mapper = editor.editing.mapper;\n\tconst domConverter = editor.editing.view.domConverter;\n\tconst rects = Array.from( ranges ).map( range => {\n\t\tconst modelTableCell = getTableCellAtPosition( range.start );\n\t\tconst viewTableCell = mapper.toViewElement( modelTableCell );\n\t\treturn new Rect( domConverter.mapViewToDom( viewTableCell ) );\n\t} );\n\n\treturn Rect.getBoundingRect( rects );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/tablepropertiesui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView, ContextualBalloon, clickOutsideHandler, getLocalizedColorOptions, normalizeColorOptions } from 'ckeditor5/src/ui';\n\nimport { debounce } from 'lodash-es';\n\nimport TablePropertiesView from './ui/tablepropertiesview';\nimport tableProperties from './../../theme/icons/table-properties.svg';\nimport {\n\tcolorFieldValidator,\n\tgetLocalizedColorErrorText,\n\tgetLocalizedLengthErrorText,\n\tlengthFieldValidator,\n\tlineWidthFieldValidator,\n\tdefaultColors\n} from '../utils/ui/table-properties';\nimport { getTableWidgetAncestor } from '../utils/ui/widget';\nimport { getBalloonTablePositionData, repositionContextualBalloon } from '../utils/ui/contextualballoon';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\n\nconst ERROR_TEXT_TIMEOUT = 500;\n\n// Map of view properties and related commands.\nconst propertyToCommandMap = {\n\tborderStyle: 'tableBorderStyle',\n\tborderColor: 'tableBorderColor',\n\tborderWidth: 'tableBorderWidth',\n\tbackgroundColor: 'tableBackgroundColor',\n\twidth: 'tableWidth',\n\theight: 'tableHeight',\n\talignment: 'tableAlignment'\n};\n\n/**\n * The table properties UI plugin. It introduces the `'tableProperties'` button\n * that opens a form allowing to specify visual styling of an entire table.\n *\n * It uses the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TablePropertiesUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ContextualBalloon ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TablePropertiesUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'table.tableProperties', {\n\t\t\tborderColors: defaultColors,\n\t\t\tbackgroundColors: defaultColors\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t/**\n\t\t * The default table properties.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:table/tableproperties~TablePropertiesOptions}\n\t\t */\n\t\tthis._defaultTableProperties = getNormalizedDefaultProperties( editor.config.get( 'table.tableProperties.defaultProperties' ), {\n\t\t\tincludeAlignmentProperty: true\n\t\t} );\n\n\t\t/**\n\t\t * The contextual balloon plugin instance.\n\t\t *\n\t\t * @private\n\t\t * @member {module:ui/panel/balloon/contextualballoon~ContextualBalloon}\n\t\t */\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\t/**\n\t\t * The properties form view displayed inside the balloon.\n\t\t *\n\t\t * @member {module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView}\n\t\t */\n\t\tthis.view = this._createPropertiesView();\n\n\t\t/**\n\t\t * The batch used to undo all changes made by the form (which are live, as the user types)\n\t\t * when \"Cancel\" was pressed. Each time the view is shown, a new batch is created.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:engine/model/batch~Batch}\n\t\t */\n\t\tthis._undoStepBatch = null;\n\n\t\teditor.ui.componentFactory.add( 'tableProperties', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Table properties' ),\n\t\t\t\ticon: tableProperties,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tthis.listenTo( view, 'execute', () => this._showView() );\n\n\t\t\tconst commands = Object.values( propertyToCommandMap )\n\t\t\t\t.map( commandName => editor.commands.get( commandName ) );\n\n\t\t\tview.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => (\n\t\t\t\tareEnabled.some( isCommandEnabled => isCommandEnabled )\n\t\t\t) );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1341.\n\t\tthis.view.destroy();\n\t}\n\n\t/**\n\t * Creates the {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView} instance.\n\t *\n\t * @private\n\t * @returns {module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView} The table\n\t * properties form view instance.\n\t */\n\t_createPropertiesView() {\n\t\tconst editor = this.editor;\n\t\tconst config = editor.config.get( 'table.tableProperties' );\n\t\tconst borderColorsConfig = normalizeColorOptions( config.borderColors );\n\t\tconst localizedBorderColors = getLocalizedColorOptions( editor.locale, borderColorsConfig );\n\t\tconst backgroundColorsConfig = normalizeColorOptions( config.backgroundColors );\n\t\tconst localizedBackgroundColors = getLocalizedColorOptions( editor.locale, backgroundColorsConfig );\n\n\t\tconst view = new TablePropertiesView( editor.locale, {\n\t\t\tborderColors: localizedBorderColors,\n\t\t\tbackgroundColors: localizedBackgroundColors,\n\t\t\tdefaultTableProperties: this._defaultTableProperties\n\t\t} );\n\t\tconst t = editor.t;\n\n\t\t// Render the view so its #element is available for the clickOutsideHandler.\n\t\tview.render();\n\n\t\tthis.listenTo( view, 'submit', () => {\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\tthis.listenTo( view, 'cancel', () => {\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/6180\n\t\t\tif ( this._undoStepBatch.operations.length ) {\n\t\t\t\teditor.execute( 'undo', this._undoStepBatch );\n\t\t\t}\n\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\t// Close the balloon on Esc key press.\n\t\tview.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideView();\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: view,\n\t\t\tactivator: () => this._isViewInBalloon,\n\t\t\tcontextElements: [ this._balloon.view.element ],\n\t\t\tcallback: () => this._hideView()\n\t\t} );\n\n\t\tconst colorErrorText = getLocalizedColorErrorText( t );\n\t\tconst lengthErrorText = getLocalizedLengthErrorText( t );\n\n\t\t// Create the \"UI -> editor data\" binding.\n\t\t// These listeners update the editor data (via table commands) when any observable\n\t\t// property of the view has changed. They also validate the value and display errors in the UI\n\t\t// when necessary. This makes the view live, which means the changes are\n\t\t// visible in the editing as soon as the user types or changes fields' values.\n\t\tview.on(\n\t\t\t'change:borderStyle',\n\t\t\tthis._getPropertyChangeCallback( 'tableBorderStyle', this._defaultTableProperties.borderStyle )\n\t\t);\n\n\t\tview.on( 'change:borderColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderColorInput,\n\t\t\tcommandName: 'tableBorderColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator,\n\t\t\tdefaultValue: this._defaultTableProperties.borderColor\n\t\t} ) );\n\n\t\tview.on( 'change:borderWidth', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderWidthInput,\n\t\t\tcommandName: 'tableBorderWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lineWidthFieldValidator,\n\t\t\tdefaultValue: this._defaultTableProperties.borderWidth\n\t\t} ) );\n\n\t\tview.on( 'change:backgroundColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.backgroundInput,\n\t\t\tcommandName: 'tableBackgroundColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator,\n\t\t\tdefaultValue: this._defaultTableProperties.backgroundColor\n\t\t} ) );\n\n\t\tview.on( 'change:width', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.widthInput,\n\t\t\tcommandName: 'tableWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator,\n\t\t\tdefaultValue: this._defaultTableProperties.width\n\t\t} ) );\n\n\t\tview.on( 'change:height', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.heightInput,\n\t\t\tcommandName: 'tableHeight',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator,\n\t\t\tdefaultValue: this._defaultTableProperties.height\n\t\t} ) );\n\n\t\tview.on(\n\t\t\t'change:alignment',\n\t\t\tthis._getPropertyChangeCallback( 'tableAlignment', this._defaultTableProperties.alignment )\n\t\t);\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * In this method the \"editor data -> UI\" binding is happening.\n\t *\n\t * When executed, this method obtains selected table property values from various table commands\n\t * and passes them to the {@link #view}.\n\t *\n\t * This way, the UI stays up–to–date with the editor data.\n\t *\n\t * @private\n\t */\n\t_fillViewFormFromCommandValues() {\n\t\tconst commands = this.editor.commands;\n\t\tconst borderStyleCommand = commands.get( 'tableBorderStyle' );\n\n\t\tObject.entries( propertyToCommandMap )\n\t\t\t.map( ( [ property, commandName ] ) => {\n\t\t\t\tconst defaultValue = this._defaultTableProperties[ property ] || '';\n\n\t\t\t\treturn [ property, commands.get( commandName ).value || defaultValue ];\n\t\t\t} )\n\t\t\t.forEach( ( [ property, value ] ) => {\n\t\t\t\t// Do not set the `border-color` and `border-width` fields if `border-style:none`.\n\t\t\t\tif ( ( property === 'borderColor' || property === 'borderWidth' ) && borderStyleCommand.value === 'none' ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis.view.set( property, value );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Shows the {@link #view} in the {@link #_balloon}.\n\t *\n\t * **Note**: Each time a view is shown, the new {@link #_undoStepBatch} is created that contains\n\t * all changes made to the document when the view is visible, allowing a single undo step\n\t * for all of them.\n\t *\n\t * @protected\n\t */\n\t_showView() {\n\t\tconst editor = this.editor;\n\n\t\tthis.listenTo( editor.ui, 'update', () => {\n\t\t\tthis._updateView();\n\t\t} );\n\n\t\t// Update the view with the model values.\n\t\tthis._fillViewFormFromCommandValues();\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.view,\n\t\t\tposition: getBalloonTablePositionData( editor )\n\t\t} );\n\n\t\t// Create a new batch. Clicking \"Cancel\" will undo this batch.\n\t\tthis._undoStepBatch = editor.model.createBatch();\n\n\t\t// Basic a11y.\n\t\tthis.view.focus();\n\t}\n\n\t/**\n\t * Removes the {@link #view} from the {@link #_balloon}.\n\t *\n\t * @protected\n\t */\n\t_hideView() {\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\n\t\t// Blur any input element before removing it from DOM to prevent issues in some browsers.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\tthis.view.saveButtonView.focus();\n\n\t\tthis._balloon.remove( this.view );\n\n\t\t// Make sure the focus is not lost in the process by putting it directly\n\t\t// into the editing view.\n\t\tthis.editor.editing.view.focus();\n\t}\n\n\t/**\n\t * Repositions the {@link #_balloon} or hides the {@link #view} if a table is no longer selected.\n\t *\n\t * @protected\n\t */\n\t_updateView() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\tif ( !getTableWidgetAncestor( viewDocument.selection ) ) {\n\t\t\tthis._hideView();\n\t\t} else if ( this._isViewVisible ) {\n\t\t\trepositionContextualBalloon( editor, 'table' );\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is the visible in the {@link #_balloon}.\n\t *\n\t * @private\n\t * @type {Boolean}\n\t */\n\tget _isViewVisible() {\n\t\treturn this._balloon.visibleView === this.view;\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is in the {@link #_balloon}.\n\t *\n\t * @private\n\t * @type {Boolean}\n\t */\n\tget _isViewInBalloon() {\n\t\treturn this._balloon.hasView( this.view );\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon {@link #view view's} property change\n\t * executes a related editor command with the new property value.\n\t *\n\t * If new value will be set to the default value, the command will not be executed.\n\t *\n\t * @private\n\t * @param {String} commandName The command that will be executed.\n\t * @param {String} defaultValue The default value of the command.\n\t * @returns {Function}\n\t */\n\t_getPropertyChangeCallback( commandName, defaultValue ) {\n\t\treturn ( evt, propertyName, newValue, oldValue ) => {\n\t\t\t// If the \"oldValue\" is missing and \"newValue\" is set to the default value, do not execute the command.\n\t\t\t// It is an initial call (when opening the table properties view).\n\t\t\tif ( !oldValue && defaultValue === newValue ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.execute( commandName, {\n\t\t\t\tvalue: newValue,\n\t\t\t\tbatch: this._undoStepBatch\n\t\t\t} );\n\t\t};\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon {@link #view view's} property change:\n\t * * executes a related editor command with the new property value if the value is valid,\n\t * * or sets the error text next to the invalid field, if the value did not pass the validation.\n\t *\n\t * @private\n\t * @param {Object} options\n\t * @param {String} options.commandName\n\t * @param {module:ui/view~View} options.viewField\n\t * @param {Function} options.validator\n\t * @param {String} options.errorText\n\t * @param {String} options.defaultValue\n\t * @returns {Function}\n\t */\n\t_getValidatedPropertyChangeCallback( options ) {\n\t\tconst { commandName, viewField, validator, errorText, defaultValue } = options;\n\t\tconst setErrorTextDebounced = debounce( () => {\n\t\t\tviewField.errorText = errorText;\n\t\t}, ERROR_TEXT_TIMEOUT );\n\n\t\treturn ( evt, propertyName, newValue, oldValue ) => {\n\t\t\tsetErrorTextDebounced.cancel();\n\n\t\t\t// If the \"oldValue\" is missing and \"newValue\" is set to the default value, do not execute the command.\n\t\t\t// It is an initial call (when opening the table properties view).\n\t\t\tif ( !oldValue && defaultValue === newValue ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( validator( newValue ) ) {\n\t\t\t\tthis.editor.execute( commandName, {\n\t\t\t\t\tvalue: newValue,\n\t\t\t\t\tbatch: this._undoStepBatch\n\t\t\t\t} );\n\n\t\t\t\tviewField.errorText = null;\n\t\t\t} else {\n\t\t\t\tsetErrorTextDebounced();\n\t\t\t}\n\t\t};\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tablecellproperties.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/ui/tablecellpropertiesview\n */\n\nimport {\n\tLabeledFieldView,\n\tcreateLabeledDropdown,\n\tcreateLabeledInputText,\n\tLabelView,\n\taddListToDropdown,\n\tToolbarView,\n\tButtonView,\n\tFocusCycler,\n\tView,\n\tViewCollection,\n\tFormHeaderView,\n\tsubmitHandler\n} from 'ckeditor5/src/ui';\nimport { KeystrokeHandler, FocusTracker } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport {\n\tfillToolbar,\n\tgetBorderStyleDefinitions,\n\tgetBorderStyleLabels,\n\tgetLabeledColorInputCreator\n} from '../../utils/ui/table-properties';\nimport FormRowView from '../../ui/formrowview';\n\nimport '../../../theme/form.css';\nimport '../../../theme/tableform.css';\nimport '../../../theme/tablecellproperties.css';\n\nconst ALIGNMENT_ICONS = {\n\tleft: icons.alignLeft,\n\tcenter: icons.alignCenter,\n\tright: icons.alignRight,\n\tjustify: icons.alignJustify,\n\ttop: icons.alignTop,\n\tmiddle: icons.alignMiddle,\n\tbottom: icons.alignBottom\n};\n\n/**\n * The class representing a table cell properties form, allowing users to customize\n * certain style aspects of a table cell, for instance, border, padding, text alignment, etc..\n *\n * @extends module:ui/view~View\n */\nexport default class TableCellPropertiesView extends View {\n\t/**\n\t * @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param {Object} options Additional configuration of the view.\n\t * @param {module:table/table~TableColorConfig} options.borderColors A configuration of the border\n\t * color palette used by the\n\t * {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView#borderColorInput}.\n\t * @param {module:table/table~TableColorConfig} options.backgroundColors A configuration of the background\n\t * color palette used by the\n\t * {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView#backgroundInput}.\n\t * @param {module:table/tablecellproperties~TableCellPropertiesOptions} options.defaultTableCellProperties The default\n\t * table cell properties.\n\t */\n\tconstructor( locale, options ) {\n\t\tsuper( locale );\n\n\t\tthis.set( {\n\t\t\t/**\n\t\t\t * The value of the cell border style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #borderStyle\n\t\t\t */\n\t\t\tborderStyle: '',\n\n\t\t\t/**\n\t\t\t * The value of the cell border width style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #borderWidth\n\t\t\t */\n\t\t\tborderWidth: '',\n\n\t\t\t/**\n\t\t\t * The value of the cell border color style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #borderColor\n\t\t\t */\n\t\t\tborderColor: '',\n\n\t\t\t/**\n\t\t\t * The value of the cell padding style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #padding\n\t\t\t */\n\t\t\tpadding: '',\n\n\t\t\t/**\n\t\t\t * The value of the cell background color style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #backgroundColor\n\t\t\t */\n\t\t\tbackgroundColor: '',\n\n\t\t\t/**\n\t\t\t * The value of the table cell width style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #width\n\t\t\t */\n\t\t\twidth: '',\n\n\t\t\t/**\n\t\t\t * The value of the table cell height style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #height\n\t\t\t */\n\t\t\theight: '',\n\n\t\t\t/**\n\t\t\t * The value of the horizontal text alignment style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #horizontalAlignment\n\t\t\t */\n\t\t\thorizontalAlignment: '',\n\n\t\t\t/**\n\t\t\t * The value of the vertical text alignment style.\n\t\t\t *\n\t\t\t * @observable\n\t\t\t * @default ''\n\t\t\t * @member #verticalAlignment\n\t\t\t */\n\t\t\tverticalAlignment: ''\n\t\t} );\n\n\t\t/**\n\t\t * Options passed to the view. See {@link #constructor} to learn more.\n\t\t *\n\t\t * @member {Object}\n\t\t */\n\t\tthis.options = options;\n\n\t\tconst { borderStyleDropdown, borderWidthInput, borderColorInput, borderRowLabel } = this._createBorderFields();\n\t\tconst { backgroundRowLabel, backgroundInput } = this._createBackgroundFields();\n\t\tconst { widthInput, operatorLabel, heightInput, dimensionsLabel } = this._createDimensionFields();\n\t\tconst { horizontalAlignmentToolbar, verticalAlignmentToolbar, alignmentLabel } = this._createAlignmentFields();\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * A collection of child views in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @type {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.children = this.createCollection();\n\n\t\t/**\n\t\t * A dropdown that allows selecting the style of the table cell border.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/dropdown/dropdownview~DropdownView}\n\t\t */\n\t\tthis.borderStyleDropdown = borderStyleDropdown;\n\n\t\t/**\n\t\t * An input that allows specifying the width of the table cell border.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.borderWidthInput = borderWidthInput;\n\n\t\t/**\n\t\t * An input that allows specifying the color of the table cell border.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:table/ui/colorinputview~ColorInputView}\n\t\t */\n\t\tthis.borderColorInput = borderColorInput;\n\n\t\t/**\n\t\t * An input that allows specifying the table cell background color.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:table/ui/colorinputview~ColorInputView}\n\t\t */\n\t\tthis.backgroundInput = backgroundInput;\n\n\t\t/**\n\t\t * An input that allows specifying the table cell padding.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.paddingInput = this._createPaddingField();\n\n\t\t/**\n\t\t * An input that allows specifying the table cell width.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.widthInput = widthInput;\n\n\t\t/**\n\t\t * An input that allows specifying the table cell height.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView}\n\t\t */\n\t\tthis.heightInput = heightInput;\n\n\t\t/**\n\t\t * A toolbar with buttons that allow changing the horizontal text alignment in a table cell.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ToolbarView}\n\t\t */\n\t\tthis.horizontalAlignmentToolbar = horizontalAlignmentToolbar;\n\n\t\t/**\n\t\t * A toolbar with buttons that allow changing the vertical text alignment in a table cell.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/toolbar/toolbarview~ToolbarView}\n\t\t */\n\t\tthis.verticalAlignmentToolbar = verticalAlignmentToolbar;\n\n\t\t// Defer creating to make sure other fields are present and the Save button can\n\t\t// bind its #isEnabled to their error messages so there's no way to save unless all\n\t\t// fields are valid.\n\t\tconst { saveButtonView, cancelButtonView } = this._createActionButtons();\n\n\t\t/**\n\t\t * The \"Save\" button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.saveButtonView = saveButtonView;\n\n\t\t/**\n\t\t * The \"Cancel\" button view.\n\t\t *\n\t\t * @member {module:ui/button/buttonview~ButtonView}\n\t\t */\n\t\tthis.cancelButtonView = cancelButtonView;\n\n\t\t/**\n\t\t * A collection of views that can be focused in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Helps cycling over {@link #_focusables} in the form.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\t// Form header.\n\t\tthis.children.add( new FormHeaderView( locale, {\n\t\t\tlabel: this.t( 'Cell properties' )\n\t\t} ) );\n\n\t\t// Border row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: borderRowLabel,\n\t\t\tchildren: [\n\t\t\t\tborderRowLabel,\n\t\t\t\tborderStyleDropdown,\n\t\t\t\tborderColorInput,\n\t\t\t\tborderWidthInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__border-row'\n\t\t} ) );\n\n\t\t// Background.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: backgroundRowLabel,\n\t\t\tchildren: [\n\t\t\t\tbackgroundRowLabel,\n\t\t\t\tbackgroundInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__background-row'\n\t\t} ) );\n\n\t\t// Dimensions row and padding.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\t// Dimensions row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tlabelView: dimensionsLabel,\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tdimensionsLabel,\n\t\t\t\t\t\twidthInput,\n\t\t\t\t\t\toperatorLabel,\n\t\t\t\t\t\theightInput\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-form__dimensions-row'\n\t\t\t\t} ),\n\t\t\t\t// Padding row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tthis.paddingInput\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-cell-properties-form__padding-row'\n\t\t\t\t} )\n\t\t\t]\n\t\t} ) );\n\n\t\t// Text alignment row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: alignmentLabel,\n\t\t\tchildren: [\n\t\t\t\talignmentLabel,\n\t\t\t\thorizontalAlignmentToolbar,\n\t\t\t\tverticalAlignmentToolbar\n\t\t\t],\n\t\t\tclass: 'ck-table-cell-properties-form__alignment-row'\n\t\t} ) );\n\n\t\t// Action row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t],\n\t\t\tclass: 'ck-table-form__action-row'\n\t\t} ) );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form',\n\t\t\t\t\t'ck-table-form',\n\t\t\t\t\t'ck-table-cell-properties-form'\n\t\t\t\t],\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\t// Enable the \"submit\" event for this view. It can be triggered by the #saveButtonView\n\t\t// which is of the \"submit\" DOM \"type\".\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\t[\n\t\t\tthis.borderStyleDropdown,\n\t\t\tthis.borderColorInput,\n\t\t\tthis.borderColorInput.fieldView.dropdownView.buttonView,\n\t\t\tthis.borderWidthInput,\n\t\t\tthis.backgroundInput,\n\t\t\tthis.backgroundInput.fieldView.dropdownView.buttonView,\n\t\t\tthis.widthInput,\n\t\t\tthis.heightInput,\n\t\t\tthis.paddingInput,\n\t\t\tthis.horizontalAlignmentToolbar,\n\t\t\tthis.verticalAlignmentToolbar,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t].forEach( view => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( view );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( view.element );\n\t\t} );\n\n\t\t// Mainly for closing using \"Esc\" and navigation using \"Tab\".\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist focusable field in the form.\n\t */\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #borderStyleDropdown},\n\t * * {@link #borderWidthInput},\n\t * * {@link #borderColorInput}.\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createBorderFields() {\n\t\tconst defaultTableCellProperties = this.options.defaultTableCellProperties;\n\t\tconst defaultBorder = {\n\t\t\tstyle: defaultTableCellProperties.borderStyle,\n\t\t\twidth: defaultTableCellProperties.borderWidth,\n\t\t\tcolor: defaultTableCellProperties.borderColor\n\t\t};\n\n\t\tconst colorInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.borderColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: defaultBorder.color\n\t\t} );\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst borderRowLabel = new LabelView( locale );\n\t\tborderRowLabel.text = t( 'Border' );\n\n\t\t// -- Style ---------------------------------------------------\n\n\t\tconst styleLabels = getBorderStyleLabels( t );\n\t\tconst borderStyleDropdown = new LabeledFieldView( locale, createLabeledDropdown );\n\t\tborderStyleDropdown.set( {\n\t\t\tlabel: t( 'Style' ),\n\t\t\tclass: 'ck-table-form__border-style'\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.set( {\n\t\t\tisOn: false,\n\t\t\twithText: true,\n\t\t\ttooltip: t( 'Style' )\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.bind( 'label' ).to( this, 'borderStyle', value => {\n\t\t\treturn styleLabels[ value ? value : 'none' ];\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.on( 'execute', evt => {\n\t\t\tthis.borderStyle = evt.source._borderStyleValue;\n\t\t} );\n\n\t\tborderStyleDropdown.bind( 'isEmpty' ).to( this, 'borderStyle', value => !value );\n\n\t\taddListToDropdown( borderStyleDropdown.fieldView, getBorderStyleDefinitions( this, defaultBorder.style ) );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst borderWidthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\tborderWidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__border-width'\n\t\t} );\n\n\t\tborderWidthInput.fieldView.bind( 'value' ).to( this, 'borderWidth' );\n\t\tborderWidthInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\t\tborderWidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderWidth = borderWidthInput.fieldView.element.value;\n\t\t} );\n\n\t\t// -- Color ---------------------------------------------------\n\n\t\tconst borderColorInput = new LabeledFieldView( locale, colorInputCreator );\n\n\t\tborderColorInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-form__border-color'\n\t\t} );\n\n\t\tborderColorInput.fieldView.bind( 'value' ).to( this, 'borderColor' );\n\t\tborderColorInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\n\t\tborderColorInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderColor = borderColorInput.fieldView.value;\n\t\t} );\n\n\t\t// Reset the border color and width fields depending on the `border-style` value.\n\t\tthis.on( 'change:borderStyle', ( evt, name, newValue, oldValue ) => {\n\t\t\t// When removing the border (`border-style:none`), clear the remaining `border-*` properties.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5/issues/6227.\n\t\t\tif ( !isBorderStyleSet( newValue ) ) {\n\t\t\t\tthis.borderColor = '';\n\t\t\t\tthis.borderWidth = '';\n\t\t\t}\n\n\t\t\t// When setting the `border-style` from `none`, set the default `border-color` and `border-width` properties.\n\t\t\tif ( !isBorderStyleSet( oldValue ) ) {\n\t\t\t\tthis.borderColor = defaultBorder.color;\n\t\t\t\tthis.borderWidth = defaultBorder.width;\n\t\t\t}\n\t\t} );\n\n\t\treturn {\n\t\t\tborderRowLabel,\n\t\t\tborderStyleDropdown,\n\t\t\tborderColorInput,\n\t\t\tborderWidthInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #backgroundInput}.\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createBackgroundFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst backgroundRowLabel = new LabelView( locale );\n\t\tbackgroundRowLabel.text = t( 'Background' );\n\n\t\t// -- Background color input -----------------------------------\n\n\t\tconst colorInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.backgroundColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: this.options.defaultTableCellProperties.backgroundColor\n\t\t} );\n\n\t\tconst backgroundInput = new LabeledFieldView( locale, colorInputCreator );\n\n\t\tbackgroundInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-cell-properties-form__background'\n\t\t} );\n\n\t\tbackgroundInput.fieldView.bind( 'value' ).to( this, 'backgroundColor' );\n\t\tbackgroundInput.fieldView.on( 'input', () => {\n\t\t\tthis.backgroundColor = backgroundInput.fieldView.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tbackgroundRowLabel,\n\t\t\tbackgroundInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #widthInput}.\n\t * * {@link #heightInput}.\n\t *\n\t * @private\n\t * @returns {module:ui/labeledfield/labeledfieldview~LabeledFieldView}\n\t */\n\t_createDimensionFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\t// -- Label ---------------------------------------------------\n\n\t\tconst dimensionsLabel = new LabelView( locale );\n\t\tdimensionsLabel.text = t( 'Dimensions' );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst widthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\twidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__width'\n\t\t} );\n\n\t\twidthInput.fieldView.bind( 'value' ).to( this, 'width' );\n\t\twidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.width = widthInput.fieldView.element.value;\n\t\t} );\n\n\t\t// -- Operator ---------------------------------------------------\n\n\t\tconst operatorLabel = new View( locale );\n\t\toperatorLabel.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-table-form__dimension-operator'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{ text: '×' }\n\t\t\t]\n\t\t} );\n\n\t\t// -- Height ---------------------------------------------------\n\n\t\tconst heightInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\theightInput.set( {\n\t\t\tlabel: t( 'Height' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__height'\n\t\t} );\n\n\t\theightInput.fieldView.bind( 'value' ).to( this, 'height' );\n\t\theightInput.fieldView.on( 'input', () => {\n\t\t\tthis.height = heightInput.fieldView.element.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tdimensionsLabel,\n\t\t\twidthInput,\n\t\t\toperatorLabel,\n\t\t\theightInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #paddingInput}.\n\t *\n\t * @private\n\t * @returns {module:ui/labeledfield/labeledfieldview~LabeledFieldView}\n\t */\n\t_createPaddingField() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\tconst paddingInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\tpaddingInput.set( {\n\t\t\tlabel: t( 'Padding' ),\n\t\t\tclass: 'ck-table-cell-properties-form__padding'\n\t\t} );\n\n\t\tpaddingInput.fieldView.bind( 'value' ).to( this, 'padding' );\n\t\tpaddingInput.fieldView.on( 'input', () => {\n\t\t\tthis.padding = paddingInput.fieldView.element.value;\n\t\t} );\n\n\t\treturn paddingInput;\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #horizontalAlignmentToolbar},\n\t * * {@link #verticalAlignmentToolbar}.\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createAlignmentFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\tconst alignmentLabel = new LabelView( locale );\n\n\t\talignmentLabel.text = t( 'Table cell text alignment' );\n\n\t\t// -- Horizontal ---------------------------------------------------\n\n\t\tconst horizontalAlignmentToolbar = new ToolbarView( locale );\n\t\tconst isContentRTL = this.locale.contentLanguageDirection === 'rtl';\n\n\t\thorizontalAlignmentToolbar.set( {\n\t\t\tisCompact: true,\n\t\t\tariaLabel: t( 'Horizontal text alignment toolbar' )\n\t\t} );\n\n\t\tfillToolbar( {\n\t\t\tview: this,\n\t\t\ticons: ALIGNMENT_ICONS,\n\t\t\ttoolbar: horizontalAlignmentToolbar,\n\t\t\tlabels: this._horizontalAlignmentLabels,\n\t\t\tpropertyName: 'horizontalAlignment',\n\t\t\tnameToValue: name => {\n\t\t\t\t// For the RTL content, we want to swap the buttons \"align to the left\" and \"align to the right\".\n\t\t\t\tif ( isContentRTL ) {\n\t\t\t\t\tif ( name === 'left' ) {\n\t\t\t\t\t\treturn 'right';\n\t\t\t\t\t} else if ( name === 'right' ) {\n\t\t\t\t\t\treturn 'left';\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn name;\n\t\t\t},\n\t\t\tdefaultValue: this.options.defaultTableCellProperties.horizontalAlignment\n\t\t} );\n\n\t\t// -- Vertical -----------------------------------------------------\n\n\t\tconst verticalAlignmentToolbar = new ToolbarView( locale );\n\n\t\tverticalAlignmentToolbar.set( {\n\t\t\tisCompact: true,\n\t\t\tariaLabel: t( 'Vertical text alignment toolbar' )\n\t\t} );\n\n\t\tfillToolbar( {\n\t\t\tview: this,\n\t\t\ticons: ALIGNMENT_ICONS,\n\t\t\ttoolbar: verticalAlignmentToolbar,\n\t\t\tlabels: this._verticalAlignmentLabels,\n\t\t\tpropertyName: 'verticalAlignment',\n\t\t\tdefaultValue: this.options.defaultTableCellProperties.verticalAlignment\n\t\t} );\n\n\t\treturn {\n\t\t\thorizontalAlignmentToolbar,\n\t\t\tverticalAlignmentToolbar,\n\t\t\talignmentLabel\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form controls:\n\t *\n\t * * {@link #saveButtonView},\n\t * * {@link #cancelButtonView}.\n\t *\n\t * @private\n\t * @returns {Object.<String,module:ui/view~View>}\n\t */\n\t_createActionButtons() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\t\tconst saveButtonView = new ButtonView( locale );\n\t\tconst cancelButtonView = new ButtonView( locale );\n\t\tconst fieldsThatShouldValidateToSave = [\n\t\t\tthis.borderWidthInput,\n\t\t\tthis.borderColorInput,\n\t\t\tthis.backgroundInput,\n\t\t\tthis.paddingInput\n\t\t];\n\n\t\tsaveButtonView.set( {\n\t\t\tlabel: t( 'Save' ),\n\t\t\ticon: icons.check,\n\t\t\tclass: 'ck-button-save',\n\t\t\ttype: 'submit',\n\t\t\twithText: true\n\t\t} );\n\n\t\tsaveButtonView.bind( 'isEnabled' ).toMany( fieldsThatShouldValidateToSave, 'errorText', ( ...errorTexts ) => {\n\t\t\treturn errorTexts.every( errorText => !errorText );\n\t\t} );\n\n\t\tcancelButtonView.set( {\n\t\t\tlabel: t( 'Cancel' ),\n\t\t\ticon: icons.cancel,\n\t\t\tclass: 'ck-button-cancel',\n\t\t\twithText: true\n\t\t} );\n\n\t\tcancelButtonView.delegate( 'execute' ).to( this, 'cancel' );\n\n\t\treturn {\n\t\t\tsaveButtonView, cancelButtonView\n\t\t};\n\t}\n\n\t/**\n\t * Provides localized labels for {@link #horizontalAlignmentToolbar} buttons.\n\t *\n\t * @private\n\t * @type {Object.<String,String>}\n\t */\n\tget _horizontalAlignmentLabels() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t;\n\n\t\tconst left = t( 'Align cell text to the left' );\n\t\tconst center = t( 'Align cell text to the center' );\n\t\tconst right = t( 'Align cell text to the right' );\n\t\tconst justify = t( 'Justify cell text' );\n\n\t\t// Returns object with a proper order of labels.\n\t\tif ( locale.uiLanguageDirection === 'rtl' ) {\n\t\t\treturn { right, center, left, justify };\n\t\t} else {\n\t\t\treturn { left, center, right, justify };\n\t\t}\n\t}\n\n\t/**\n\t * Provides localized labels for {@link #verticalAlignmentToolbar} buttons.\n\t *\n\t * @private\n\t * @type {Object.<String,String>}\n\t */\n\tget _verticalAlignmentLabels() {\n\t\tconst t = this.t;\n\n\t\treturn {\n\t\t\ttop: t( 'Align cell text to the top' ),\n\t\t\tmiddle: t( 'Align cell text to the middle' ),\n\t\t\tbottom: t( 'Align cell text to the bottom' )\n\t\t};\n\t}\n}\n\nfunction isBorderStyleSet( value ) {\n\treturn value !== 'none';\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.105 18-.17 1H2.5A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1h15A1.5 1.5 0 0 1 19 2.5v9.975l-.85-.124-.15-.302V8h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5h3.105zM2 12h5V8H2v4zm10-4H8v4h4V8zM2 2v5h5V2H2zm0 16h5v-5H2v5zM13 7h5V2h-5v5zM8 2v5h4V2H8z\\\" opacity=\\\".6\\\"/><path d=\\\"m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM13 6a1 1 0 0 1 1 1v3.172a2.047 2.047 0 0 0-.293.443l-.858 1.736-1.916.28-.151.027A1.976 1.976 0 0 0 9.315 14H7a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h6zm-1 2H8v4h4V8z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/tablecellpropertiesui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView, clickOutsideHandler, ContextualBalloon, getLocalizedColorOptions, normalizeColorOptions } from 'ckeditor5/src/ui';\n\nimport TableCellPropertiesView from './ui/tablecellpropertiesview';\nimport {\n\tcolorFieldValidator,\n\tgetLocalizedColorErrorText,\n\tgetLocalizedLengthErrorText,\n\tdefaultColors,\n\tlengthFieldValidator,\n\tlineWidthFieldValidator\n} from '../utils/ui/table-properties';\nimport { debounce } from 'lodash-es';\nimport { getTableWidgetAncestor } from '../utils/ui/widget';\nimport { getBalloonCellPositionData, repositionContextualBalloon } from '../utils/ui/contextualballoon';\n\nimport tableCellProperties from './../../theme/icons/table-cell-properties.svg';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\n\nconst ERROR_TEXT_TIMEOUT = 500;\n\n// Map of view properties and related commands.\nconst propertyToCommandMap = {\n\tborderStyle: 'tableCellBorderStyle',\n\tborderColor: 'tableCellBorderColor',\n\tborderWidth: 'tableCellBorderWidth',\n\theight: 'tableCellHeight',\n\twidth: 'tableCellWidth',\n\tpadding: 'tableCellPadding',\n\tbackgroundColor: 'tableCellBackgroundColor',\n\thorizontalAlignment: 'tableCellHorizontalAlignment',\n\tverticalAlignment: 'tableCellVerticalAlignment'\n};\n\n/**\n * The table cell properties UI plugin. It introduces the `'tableCellProperties'` button\n * that opens a form allowing to specify the visual styling of a table cell.\n *\n * It uses the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableCellPropertiesUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ContextualBalloon ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableCellPropertiesUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'table.tableCellProperties', {\n\t\t\tborderColors: defaultColors,\n\t\t\tbackgroundColors: defaultColors\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t/**\n\t\t * The default table cell properties.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:table/tablecellproperties~TableCellPropertiesOptions}\n\t\t */\n\t\tthis._defaultTableCellProperties = getNormalizedDefaultProperties(\n\t\t\teditor.config.get( 'table.tableCellProperties.defaultProperties' ),\n\t\t\t{\n\t\t\t\tincludeVerticalAlignmentProperty: true,\n\t\t\t\tincludeHorizontalAlignmentProperty: true,\n\t\t\t\tincludePaddingProperty: true,\n\t\t\t\tisRightToLeftContent: editor.locale.contentLanguageDirection === 'rtl'\n\t\t\t}\n\t\t);\n\n\t\t/**\n\t\t * The contextual balloon plugin instance.\n\t\t *\n\t\t * @private\n\t\t * @member {module:ui/panel/balloon/contextualballoon~ContextualBalloon}\n\t\t */\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\t/**\n\t\t * The cell properties form view displayed inside the balloon.\n\t\t *\n\t\t * @member {module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView}\n\t\t */\n\t\tthis.view = this._createPropertiesView();\n\n\t\t/**\n\t\t * The batch used to undo all changes made by the form (which are live, as the user types)\n\t\t * when \"Cancel\" was pressed. Each time the view is shown, a new batch is created.\n\t\t *\n\t\t * @protected\n\t\t * @member {module:engine/model/batch~Batch}\n\t\t */\n\t\tthis._undoStepBatch = null;\n\n\t\teditor.ui.componentFactory.add( 'tableCellProperties', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Cell properties' ),\n\t\t\t\ticon: tableCellProperties,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tthis.listenTo( view, 'execute', () => this._showView() );\n\n\t\t\tconst commands = Object.values( propertyToCommandMap )\n\t\t\t\t.map( commandName => editor.commands.get( commandName ) );\n\n\t\t\tview.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => (\n\t\t\t\tareEnabled.some( isCommandEnabled => isCommandEnabled )\n\t\t\t) );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1341.\n\t\tthis.view.destroy();\n\t}\n\n\t/**\n\t * Creates the {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView} instance.\n\t *\n\t * @private\n\t * @returns {module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView} The cell\n\t * properties form view instance.\n\t */\n\t_createPropertiesView() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\t\tconst config = editor.config.get( 'table.tableCellProperties' );\n\t\tconst borderColorsConfig = normalizeColorOptions( config.borderColors );\n\t\tconst localizedBorderColors = getLocalizedColorOptions( editor.locale, borderColorsConfig );\n\t\tconst backgroundColorsConfig = normalizeColorOptions( config.backgroundColors );\n\t\tconst localizedBackgroundColors = getLocalizedColorOptions( editor.locale, backgroundColorsConfig );\n\t\tconst view = new TableCellPropertiesView( editor.locale, {\n\t\t\tborderColors: localizedBorderColors,\n\t\t\tbackgroundColors: localizedBackgroundColors,\n\t\t\tdefaultTableCellProperties: this._defaultTableCellProperties\n\t\t} );\n\t\tconst t = editor.t;\n\n\t\t// Render the view so its #element is available for the clickOutsideHandler.\n\t\tview.render();\n\n\t\tthis.listenTo( view, 'submit', () => {\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\tthis.listenTo( view, 'cancel', () => {\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/6180\n\t\t\tif ( this._undoStepBatch.operations.length ) {\n\t\t\t\teditor.execute( 'undo', this._undoStepBatch );\n\t\t\t}\n\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\t// Close the balloon on Esc key press.\n\t\tview.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideView();\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Reposition the balloon or hide the form if a table cell is no longer selected.\n\t\tthis.listenTo( editor.ui, 'update', () => {\n\t\t\tif ( !getTableWidgetAncestor( viewDocument.selection ) ) {\n\t\t\t\tthis._hideView();\n\t\t\t} else if ( this._isViewVisible ) {\n\t\t\t\trepositionContextualBalloon( editor, 'cell' );\n\t\t\t}\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: view,\n\t\t\tactivator: () => this._isViewInBalloon,\n\t\t\tcontextElements: [ this._balloon.view.element ],\n\t\t\tcallback: () => this._hideView()\n\t\t} );\n\n\t\tconst colorErrorText = getLocalizedColorErrorText( t );\n\t\tconst lengthErrorText = getLocalizedLengthErrorText( t );\n\n\t\t// Create the \"UI -> editor data\" binding.\n\t\t// These listeners update the editor data (via table commands) when any observable\n\t\t// property of the view has changed. They also validate the value and display errors in the UI\n\t\t// when necessary. This makes the view live, which means the changes are\n\t\t// visible in the editing as soon as the user types or changes fields' values.\n\t\tview.on(\n\t\t\t'change:borderStyle',\n\t\t\tthis._getPropertyChangeCallback( 'tableCellBorderStyle', this._defaultTableCellProperties.borderStyle )\n\t\t);\n\n\t\tview.on( 'change:borderColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderColorInput,\n\t\t\tcommandName: 'tableCellBorderColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator,\n\t\t\tdefaultValue: this._defaultTableCellProperties.borderColor\n\t\t} ) );\n\n\t\tview.on( 'change:borderWidth', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderWidthInput,\n\t\t\tcommandName: 'tableCellBorderWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lineWidthFieldValidator,\n\t\t\tdefaultValue: this._defaultTableCellProperties.borderWidth\n\t\t} ) );\n\n\t\tview.on( 'change:padding', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.paddingInput,\n\t\t\tcommandName: 'tableCellPadding',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator,\n\t\t\tdefaultValue: this._defaultTableCellProperties.padding\n\t\t} ) );\n\n\t\tview.on( 'change:width', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.widthInput,\n\t\t\tcommandName: 'tableCellWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator,\n\t\t\tdefaultValue: this._defaultTableCellProperties.width\n\t\t} ) );\n\n\t\tview.on( 'change:height', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.heightInput,\n\t\t\tcommandName: 'tableCellHeight',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator,\n\t\t\tdefaultValue: this._defaultTableCellProperties.height\n\t\t} ) );\n\n\t\tview.on( 'change:backgroundColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.backgroundInput,\n\t\t\tcommandName: 'tableCellBackgroundColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator,\n\t\t\tdefaultValue: this._defaultTableCellProperties.backgroundColor\n\t\t} ) );\n\n\t\tview.on(\n\t\t\t'change:horizontalAlignment',\n\t\t\tthis._getPropertyChangeCallback( 'tableCellHorizontalAlignment', this._defaultTableCellProperties.horizontalAlignment )\n\t\t);\n\t\tview.on(\n\t\t\t'change:verticalAlignment',\n\t\t\tthis._getPropertyChangeCallback( 'tableCellVerticalAlignment', this._defaultTableCellProperties.verticalAlignment )\n\t\t);\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * In this method the \"editor data -> UI\" binding is happening.\n\t *\n\t * When executed, this method obtains selected cell property values from various table commands\n\t * and passes them to the {@link #view}.\n\t *\n\t * This way, the UI stays up–to–date with the editor data.\n\t *\n\t * @private\n\t */\n\t_fillViewFormFromCommandValues() {\n\t\tconst commands = this.editor.commands;\n\t\tconst borderStyleCommand = commands.get( 'tableCellBorderStyle' );\n\n\t\tObject.entries( propertyToCommandMap )\n\t\t\t.map( ( [ property, commandName ] ) => {\n\t\t\t\tconst defaultValue = this._defaultTableCellProperties[ property ] || '';\n\n\t\t\t\treturn [ property, commands.get( commandName ).value || defaultValue ];\n\t\t\t} )\n\t\t\t.forEach( ( [ property, value ] ) => {\n\t\t\t\t// Do not set the `border-color` and `border-width` fields if `border-style:none`.\n\t\t\t\tif ( ( property === 'borderColor' || property === 'borderWidth' ) && borderStyleCommand.value === 'none' ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis.view.set( property, value );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Shows the {@link #view} in the {@link #_balloon}.\n\t *\n\t * **Note**: Each time a view is shown, a new {@link #_undoStepBatch} is created. It contains\n\t * all changes made to the document when the view is visible, allowing a single undo step\n\t * for all of them.\n\t *\n\t * @protected\n\t */\n\t_showView() {\n\t\tconst editor = this.editor;\n\n\t\t// Update the view with the model values.\n\t\tthis._fillViewFormFromCommandValues();\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.view,\n\t\t\tposition: getBalloonCellPositionData( editor )\n\t\t} );\n\n\t\t// Create a new batch. Clicking \"Cancel\" will undo this batch.\n\t\tthis._undoStepBatch = editor.model.createBatch();\n\n\t\t// Basic a11y.\n\t\tthis.view.focus();\n\t}\n\n\t/**\n\t * Removes the {@link #view} from the {@link #_balloon}.\n\t *\n\t * @protected\n\t */\n\t_hideView() {\n\t\tif ( !this._isViewInBalloon ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\n\t\t// Blur any input element before removing it from DOM to prevent issues in some browsers.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\tthis.view.saveButtonView.focus();\n\n\t\tthis._balloon.remove( this.view );\n\n\t\t// Make sure the focus is not lost in the process by putting it directly\n\t\t// into the editing view.\n\t\tthis.editor.editing.view.focus();\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is visible in the {@link #_balloon}.\n\t *\n\t * @private\n\t * @type {Boolean}\n\t */\n\tget _isViewVisible() {\n\t\treturn this._balloon.visibleView === this.view;\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is in the {@link #_balloon}.\n\t *\n\t * @private\n\t * @type {Boolean}\n\t */\n\tget _isViewInBalloon() {\n\t\treturn this._balloon.hasView( this.view );\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon the {@link #view view's} property change\n\t * executes a related editor command with the new property value.\n\t *\n\t * @private\n\t * @param {String} commandName\n\t * @param {String} defaultValue The default value of the command.\n\t * @returns {Function}\n\t */\n\t_getPropertyChangeCallback( commandName, defaultValue ) {\n\t\treturn ( evt, propertyName, newValue, oldValue ) => {\n\t\t\t// If the \"oldValue\" is missing and \"newValue\" is set to the default value, do not execute the command.\n\t\t\t// It is an initial call (when opening the table properties view).\n\t\t\tif ( !oldValue && defaultValue === newValue ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.execute( commandName, {\n\t\t\t\tvalue: newValue,\n\t\t\t\tbatch: this._undoStepBatch\n\t\t\t} );\n\t\t};\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon the {@link #view view's} property change:\n\t * * Executes a related editor command with the new property value if the value is valid,\n\t * * Or sets the error text next to the invalid field, if the value did not pass the validation.\n\t *\n\t * @private\n\t * @param {Object} options\n\t * @param {String} options.commandName\n\t * @param {module:ui/view~View} options.viewField\n\t * @param {Function} options.validator\n\t * @param {String} options.errorText\n\t * @param {String} options.defaultValue\n\t * @returns {Function}\n\t */\n\t_getValidatedPropertyChangeCallback( options ) {\n\t\tconst { commandName, viewField, validator, errorText, defaultValue } = options;\n\t\tconst setErrorTextDebounced = debounce( () => {\n\t\t\tviewField.errorText = errorText;\n\t\t}, ERROR_TEXT_TIMEOUT );\n\n\t\treturn ( evt, propertyName, newValue, oldValue ) => {\n\t\t\tsetErrorTextDebounced.cancel();\n\n\t\t\t// If the \"oldValue\" is missing and \"newValue\" is set to the default value, do not execute the command.\n\t\t\t// It is an initial call (when opening the table properties view).\n\t\t\tif ( !oldValue && defaultValue === newValue ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( validator( newValue ) ) {\n\t\t\t\tthis.editor.execute( commandName, {\n\t\t\t\t\tvalue: newValue,\n\t\t\t\t\tbatch: this._undoStepBatch\n\t\t\t\t} );\n\n\t\t\t\tviewField.errorText = null;\n\t\t\t} else {\n\t\t\t\tsetErrorTextDebounced();\n\t\t\t}\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellpropertycommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The table cell attribute command.\n *\n * The command is a base command for other table cell property commands.\n *\n * @extends module:core/command~Command\n */\nexport default class TableCellPropertyCommand extends Command {\n\t/**\n\t * Creates a new `TableCellPropertyCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} attributeName Table cell attribute name.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, attributeName, defaultValue ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The attribute that will be set by the command.\n\t\t *\n\t\t * @readonly\n\t\t * @member {String}\n\t\t */\n\t\tthis.attributeName = attributeName;\n\n\t\t/**\n\t\t * The default value for the attribute.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {String}\n\t\t */\n\t\tthis._defaultValue = defaultValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedTableCells = tableUtils.getSelectionAffectedTableCells( editor.model.document.selection );\n\n\t\tthis.isEnabled = !!selectedTableCells.length;\n\t\tthis.value = this._getSingleValue( selectedTableCells );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param {Object} [options]\n\t * @param {*} [options.value] If set, the command will set the attribute on selected table cells.\n\t * If it is not set, the command will remove the attribute from the selected table cells.\n\t * @param {module:engine/model/batch~Batch} [options.batch] Pass the model batch instance to the command to aggregate changes,\n\t * for example to allow a single undo step for multiple executions.\n\t */\n\texecute( options = {} ) {\n\t\tconst { value, batch } = options;\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst valueToSet = this._getValueToSet( value );\n\n\t\tmodel.enqueueChange( batch, writer => {\n\t\t\tif ( valueToSet ) {\n\t\t\t\ttableCells.forEach( tableCell => writer.setAttribute( this.attributeName, valueToSet, tableCell ) );\n\t\t\t} else {\n\t\t\t\ttableCells.forEach( tableCell => writer.removeAttribute( this.attributeName, tableCell ) );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the attribute value for a table cell.\n\t *\n\t * @param {module:engine/model/element~Element} tableCell\n\t * @returns {String|undefined}\n\t * @private\n\t */\n\t_getAttribute( tableCell ) {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = tableCell.getAttribute( this.attributeName );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Returns the proper model value. It can be used to add a default unit to numeric values.\n\t *\n\t * @private\n\t * @param {*} value\n\t * @returns {*}\n\t */\n\t_getValueToSet( value ) {\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Returns a single value for all selected table cells. If the value is the same for all cells,\n\t * it will be returned (`undefined` otherwise).\n\t *\n\t * @param {Array.<module:engine/model/element~Element>} tableCell\n\t * @returns {*}\n\t * @private\n\t */\n\t_getSingleValue( tableCell ) {\n\t\tconst firstCellValue = this._getAttribute( tableCell[ 0 ] );\n\n\t\tconst everyCellHasAttribute = tableCell.every( tableCell => this._getAttribute( tableCell ) === firstCellValue );\n\n\t\treturn everyCellHasAttribute ? firstCellValue : undefined;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellwidthcommand\n */\nimport TableCellPropertyCommand from '../../tablecellproperties/commands/tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\n\n/**\n * The table cell width command.\n *\n * The command is registered by the {@link module:table/tablecellwidth/tablecellwidthediting~TableCellWidthEditing} as\n * the `'tableCellWidth'` editor command.\n *\n * To change the width of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellWidth', {\n *\t\t\tvalue: '50px'\n *\t\t} );\n *\n * **Note**: This command adds a default `'px'` unit to numeric values. Executing:\n *\n *\t\teditor.execute( 'tableCellWidth', {\n *\t\t\tvalue: '50'\n *\t\t} );\n *\n * will set the `width` attribute to `'50px'` in the model.\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellWidthCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellWidthCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValueToSet( value ) {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellwidth/tablecellwidthediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TableEditing from './../tableediting';\nimport TableCellWidthCommand from './commands/tablecellwidthcommand';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\nimport { enableProperty } from '../utils/common';\n\n/**\n * The table cell width editing feature.\n *\n * Introduces `tableCellWidth` table cell model attribute alongside with its converters\n * and a command.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableCellWidthEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableCellWidthEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableEditing ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\tconst defaultTableCellProperties = getNormalizedDefaultProperties(\n\t\t\teditor.config.get( 'table.tableCellProperties.defaultProperties' )\n\t\t);\n\n\t\tenableProperty( editor.model.schema, editor.conversion, {\n\t\t\tmodelAttribute: 'tableCellWidth',\n\t\t\tstyleName: 'width',\n\t\t\tdefaultValue: defaultTableCellProperties.width\n\t\t} );\n\n\t\teditor.commands.add( 'tableCellWidth', new TableCellWidthCommand( editor, defaultTableCellProperties.width ) );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellpaddingcommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue, getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell padding command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellPadding'` editor command.\n *\n * To change the padding of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellPadding', {\n *\t\t\tvalue: '5px'\n *\t\t} );\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n *\t\teditor.execute( 'tableCellPadding', {\n *\t\t\tvalue: '5'\n *\t\t} );\n *\n * will set the `padding` attribute to `'5px'` in the model.\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellPaddingCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellPaddingCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellPadding', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getAttribute( tableCell ) {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValueToSet( value ) {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellheightcommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\n\n/**\n * The table cell height command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellHeight'` editor command.\n *\n * To change the height of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellHeight', {\n *\t\t\tvalue: '50px'\n *\t\t} );\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n *\t\teditor.execute( 'tableCellHeight', {\n *\t\t\tvalue: '50'\n *\t\t} );\n *\n * will set the `height` attribute to `'50px'` in the model.\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellHeightCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellHeightCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellHeight', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValueToSet( value ) {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellbackgroundcolorcommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\n\n/**\n * The table cell background color command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBackgroundColor'` editor command.\n *\n * To change the background color of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellBackgroundColor', {\n *\t\t\tvalue: '#f00'\n *\t\t} );\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellBackgroundColorCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBackgroundColorCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellBackgroundColor', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellverticalalignmentcommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\n\n/**\n * The table cell vertical alignment command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellVerticalAlignment'` editor command.\n *\n * To change the vertical text alignment of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellVerticalAlignment', {\n *\t\t\tvalue: 'top'\n *\t\t} );\n *\n * The following values, corresponding to the\n * [`vertical-align` CSS attribute](https://developer.mozilla.org/en-US/docs/Web/CSS/vertical-align), are allowed:\n *\n * * `'top'`\n * * `'bottom'`\n *\n * The `'middle'` value is the default one so there is no need to set it.\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellVerticalAlignmentCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellVerticalAlignmentCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value for the \"alignment\" attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellVerticalAlignment', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellhorizontalalignmentcommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\n\n/**\n * The table cell horizontal alignment command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellHorizontalAlignment'` editor command.\n *\n * To change the horizontal text alignment of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellHorizontalAlignment', {\n *\t\t\tvalue: 'right'\n *\t\t} );\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellHorizontalAlignmentCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellHorizontalAlignmentCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value for the \"alignment\" attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellHorizontalAlignment', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellborderstylecommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell border style command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBorderStyle'` editor command.\n *\n * To change the border style of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellBorderStyle', {\n *\t\t\tvalue: 'dashed'\n *\t\t} );\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellBorderStyleCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBorderStyleCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellBorderStyle', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getAttribute( tableCell ) {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellbordercolorcommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell border color command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBorderColor'` editor command.\n *\n * To change the border color of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellBorderColor', {\n *\t\t\tvalue: '#f00'\n *\t\t} );\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellBorderColorCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBorderColorCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellBorderColor', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getAttribute( tableCell ) {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellborderwidthcommand\n */\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue, getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell border width command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBorderWidth'` editor command.\n *\n * To change the border width of selected cells, execute the command:\n *\n *\t\teditor.execute( 'tableCellBorderWidth', {\n *\t\t\tvalue: '5px'\n *\t\t} );\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n *\t\teditor.execute( 'tableCellBorderWidth', {\n *\t\t\tvalue: '5'\n *\t\t} );\n *\n * will set the `borderWidth` attribute to `'5px'` in the model.\n *\n * @extends module:table/tablecellproperties/commands/tablecellpropertycommand~TableCellPropertyCommand\n */\nexport default class TableCellBorderWidthCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBorderWidthCommand` instance.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor An editor in which this command will be used.\n\t * @param {String} defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor, defaultValue ) {\n\t\tsuper( editor, 'tableCellBorderWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getAttribute( tableCell ) {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\t_getValueToSet( value ) {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/tablecellpropertiesediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { addBorderRules, addPaddingRules, addBackgroundRules } from 'ckeditor5/src/engine';\n\nimport { downcastAttributeToStyle, upcastBorderStyles } from './../converters/tableproperties';\nimport TableEditing from './../tableediting';\nimport TableCellWidthEditing from '../tablecellwidth/tablecellwidthediting';\nimport TableCellPaddingCommand from './commands/tablecellpaddingcommand';\nimport TableCellHeightCommand from './commands/tablecellheightcommand';\nimport TableCellBackgroundColorCommand from './commands/tablecellbackgroundcolorcommand';\nimport TableCellVerticalAlignmentCommand from './commands/tablecellverticalalignmentcommand';\nimport TableCellHorizontalAlignmentCommand from './commands/tablecellhorizontalalignmentcommand';\nimport TableCellBorderStyleCommand from './commands/tablecellborderstylecommand';\nimport TableCellBorderColorCommand from './commands/tablecellbordercolorcommand';\nimport TableCellBorderWidthCommand from './commands/tablecellborderwidthcommand';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\nimport { enableProperty } from '../utils/common';\n\nconst VALIGN_VALUES_REG_EXP = /^(top|middle|bottom)$/;\nconst ALIGN_VALUES_REG_EXP = /^(left|center|right|justify)$/;\n\n/**\n * The table cell properties editing feature.\n *\n * Introduces table cell model attributes and their conversion:\n *\n * - border: `tableCellBorderStyle`, `tableCellBorderColor` and `tableCellBorderWidth`\n * - background color: `tableCellBackgroundColor`\n * - cell padding: `tableCellPadding`\n * - horizontal and vertical alignment: `tableCellHorizontalAlignment`, `tableCellVerticalAlignment`\n * - cell width and height: `tableCellWidth`, `tableCellHeight`\n *\n * It also registers commands used to manipulate the above attributes:\n *\n * - border: the `'tableCellBorderStyle'`, `'tableCellBorderColor'` and `'tableCellBorderWidth'` commands\n * - background color: the `'tableCellBackgroundColor'` command\n * - cell padding: the `'tableCellPadding'` command\n * - horizontal and vertical alignment: the `'tableCellHorizontalAlignment'` and `'tableCellVerticalAlignment'` commands\n * - width and height: the `'tableCellWidth'` and `'tableCellHeight'` commands\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableCellPropertiesEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableCellPropertiesEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableEditing, TableCellWidthEditing ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst conversion = editor.conversion;\n\n\t\teditor.config.define( 'table.tableCellProperties.defaultProperties', {} );\n\n\t\tconst defaultTableCellProperties = getNormalizedDefaultProperties(\n\t\t\teditor.config.get( 'table.tableCellProperties.defaultProperties' ),\n\t\t\t{\n\t\t\t\tincludeVerticalAlignmentProperty: true,\n\t\t\t\tincludeHorizontalAlignmentProperty: true,\n\t\t\t\tincludePaddingProperty: true,\n\t\t\t\tisRightToLeftContent: editor.locale.contentLanguageDirection === 'rtl'\n\t\t\t}\n\t\t);\n\n\t\teditor.data.addStyleProcessorRules( addBorderRules );\n\t\tenableBorderProperties( schema, conversion, {\n\t\t\tcolor: defaultTableCellProperties.borderColor,\n\t\t\tstyle: defaultTableCellProperties.borderStyle,\n\t\t\twidth: defaultTableCellProperties.borderWidth\n\t\t} );\n\t\teditor.commands.add( 'tableCellBorderStyle', new TableCellBorderStyleCommand( editor, defaultTableCellProperties.borderStyle ) );\n\t\teditor.commands.add( 'tableCellBorderColor', new TableCellBorderColorCommand( editor, defaultTableCellProperties.borderColor ) );\n\t\teditor.commands.add( 'tableCellBorderWidth', new TableCellBorderWidthCommand( editor, defaultTableCellProperties.borderWidth ) );\n\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableCellHeight',\n\t\t\tstyleName: 'height',\n\t\t\tdefaultValue: defaultTableCellProperties.height\n\t\t} );\n\t\teditor.commands.add( 'tableCellHeight', new TableCellHeightCommand( editor, defaultTableCellProperties.height ) );\n\n\t\teditor.data.addStyleProcessorRules( addPaddingRules );\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableCellPadding',\n\t\t\tstyleName: 'padding',\n\t\t\treduceBoxSides: true,\n\t\t\tdefaultValue: defaultTableCellProperties.padding\n\t\t} );\n\t\teditor.commands.add( 'tableCellPadding', new TableCellPaddingCommand( editor, defaultTableCellProperties.padding ) );\n\n\t\teditor.data.addStyleProcessorRules( addBackgroundRules );\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableCellBackgroundColor',\n\t\t\tstyleName: 'background-color',\n\t\t\tdefaultValue: defaultTableCellProperties.backgroundColor\n\t\t} );\n\t\teditor.commands.add(\n\t\t\t'tableCellBackgroundColor',\n\t\t\tnew TableCellBackgroundColorCommand( editor, defaultTableCellProperties.backgroundColor )\n\t\t);\n\n\t\tenableHorizontalAlignmentProperty( schema, conversion, defaultTableCellProperties.horizontalAlignment );\n\t\teditor.commands.add(\n\t\t\t'tableCellHorizontalAlignment',\n\t\t\tnew TableCellHorizontalAlignmentCommand( editor, defaultTableCellProperties.horizontalAlignment )\n\t\t);\n\n\t\tenableVerticalAlignmentProperty( schema, conversion, defaultTableCellProperties.verticalAlignment );\n\t\teditor.commands.add(\n\t\t\t'tableCellVerticalAlignment',\n\t\t\tnew TableCellVerticalAlignmentCommand( editor, defaultTableCellProperties.verticalAlignment )\n\t\t);\n\t}\n}\n\n// Enables the `'tableCellBorderStyle'`, `'tableCellBorderColor'` and `'tableCellBorderWidth'` attributes for table cells.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/conversion/conversion~Conversion} conversion\n// @param {Object} defaultBorder The default border values.\n// @param {String} defaultBorder.color The default `tableCellBorderColor` value.\n// @param {String} defaultBorder.style The default `tableCellBorderStyle` value.\n// @param {String} defaultBorder.width The default `tableCellBorderWidth` value.\nfunction enableBorderProperties( schema, conversion, defaultBorder ) {\n\tconst modelAttributes = {\n\t\twidth: 'tableCellBorderWidth',\n\t\tcolor: 'tableCellBorderColor',\n\t\tstyle: 'tableCellBorderStyle'\n\t};\n\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: Object.values( modelAttributes )\n\t} );\n\n\tupcastBorderStyles( conversion, 'td', modelAttributes, defaultBorder );\n\tupcastBorderStyles( conversion, 'th', modelAttributes, defaultBorder );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', modelAttribute: modelAttributes.style, styleName: 'border-style' } );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', modelAttribute: modelAttributes.color, styleName: 'border-color' } );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', modelAttribute: modelAttributes.width, styleName: 'border-width' } );\n}\n\n// Enables the `'tableCellHorizontalAlignment'` attribute for table cells.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/conversion/conversion~Conversion} conversion\n// @param {module:utils/locale~Locale} locale The {@link module:core/editor/editor~Editor#locale} instance.\n// @param {String} defaultValue The default horizontal alignment value.\nfunction enableHorizontalAlignmentProperty( schema, conversion, defaultValue ) {\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: [ 'tableCellHorizontalAlignment' ]\n\t} );\n\n\tconversion.for( 'downcast' )\n\t\t.attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'tableCell',\n\t\t\t\tkey: 'tableCellHorizontalAlignment'\n\t\t\t},\n\t\t\tview: alignment => ( {\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\t'text-align': alignment\n\t\t\t\t}\n\t\t\t} )\n\t\t} );\n\n\tconversion.for( 'upcast' )\n\t\t// Support for the `text-align:*;` CSS definition for the table cell alignment.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tstyles: {\n\t\t\t\t\t'text-align': ALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellHorizontalAlignment',\n\t\t\t\tvalue: viewElement => {\n\t\t\t\t\tconst align = viewElement.getStyle( 'text-align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} )\n\t\t// Support for the `align` attribute as the backward compatibility while pasting from other sources.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tattributes: {\n\t\t\t\t\talign: ALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellHorizontalAlignment',\n\t\t\t\tvalue: viewElement => {\n\t\t\t\t\tconst align = viewElement.getAttribute( 'align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n}\n\n// Enables the `'verticalAlignment'` attribute for table cells.\n//\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/conversion/conversion~Conversion} conversion\n// @param {String} defaultValue The default vertical alignment value.\nfunction enableVerticalAlignmentProperty( schema, conversion, defaultValue ) {\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: [ 'tableCellVerticalAlignment' ]\n\t} );\n\n\tconversion.for( 'downcast' )\n\t\t.attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'tableCell',\n\t\t\t\tkey: 'tableCellVerticalAlignment'\n\t\t\t},\n\t\t\tview: alignment => ( {\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\t'vertical-align': alignment\n\t\t\t\t}\n\t\t\t} )\n\t\t} );\n\n\tconversion.for( 'upcast' )\n\t\t// Support for the `vertical-align:*;` CSS definition for the table cell alignment.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tstyles: {\n\t\t\t\t\t'vertical-align': VALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellVerticalAlignment',\n\t\t\t\tvalue: viewElement => {\n\t\t\t\t\tconst align = viewElement.getStyle( 'vertical-align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} )\n\t\t// Support for the `align` attribute as the backward compatibility while pasting from other sources.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tattributes: {\n\t\t\t\t\tvalign: VALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellVerticalAlignment',\n\t\t\t\tvalue: viewElement => {\n\t\t\t\t\tconst valign = viewElement.getAttribute( 'valign' );\n\n\t\t\t\t\treturn valign === defaultValue ? null : valign;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-caption-post-fixer\n */\n\n/**\n * Injects a table caption post-fixer into the model.\n *\n * The role of the table caption post-fixer is to ensure that the table with caption have the correct structure\n * after a {@link module:engine/model/model~Model#change `change()`} block was executed.\n *\n * The correct structure means that:\n *\n * * If there are many caption model element, they are merged into one model.\n * * A final, merged caption model is placed at the end of the table.\n *\n * @param {module:engine/model/model~Model} model\n */\nexport default function injectTableCaptionPostFixer( model ) {\n\tmodel.document.registerPostFixer( writer => tableCaptionPostFixer( writer, model ) );\n}\n\n// The table caption post-fixer.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/model~Model} model\nfunction tableCaptionPostFixer( writer, model ) {\n\tconst changes = model.document.differ.getChanges();\n\tlet wasFixed = false;\n\n\tfor ( const entry of changes ) {\n\t\tif ( entry.type != 'insert' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst positionParent = entry.position.parent;\n\n\t\tif ( positionParent.is( 'element', 'table' ) || entry.name == 'table' ) {\n\t\t\tconst table = entry.name == 'table' ? entry.position.nodeAfter : entry.position.parent;\n\t\t\tconst captionsToMerge = Array.from( table.getChildren() ).filter( child => child.is( 'element', 'caption' ) );\n\t\t\tconst firstCaption = captionsToMerge.shift();\n\n\t\t\tif ( !firstCaption ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Move all the contents of the captions to the first one.\n\t\t\tfor ( const caption of captionsToMerge ) {\n\t\t\t\twriter.move( writer.createRangeIn( caption ), firstCaption, 'end' );\n\t\t\t\twriter.remove( caption );\n\t\t\t}\n\n\t\t\t// Make sure the final caption is at the end of the table.\n\t\t\tif ( firstCaption.nextSibling ) {\n\t\t\t\twriter.move( writer.createRangeOn( firstCaption ), table, 'end' );\n\t\t\t\twasFixed = true;\n\t\t\t}\n\n\t\t\t// Do we merged captions and/or moved the single caption to the end of the table?\n\t\t\twasFixed = !!captionsToMerge.length || wasFixed;\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecaption/utils\n */\n\n/**\n * Checks if the provided model element is a `table`.\n *\n * @param {module:engine/model/element~Element} modelElement Element to check if it is a table.\n * @returns {Boolean}\n */\nexport function isTable( modelElement ) {\n\treturn !!modelElement && modelElement.is( 'element', 'table' );\n}\n\n/**\n * Returns the caption model element from a given table element. Returns `null` if no caption is found.\n *\n * @param {module:engine/model/element~Element} tableModelElement Table element in which we will try to find a caption element.\n * @returns {module:engine/model/element~Element|null}\n */\nexport function getCaptionFromTableModelElement( tableModelElement ) {\n\tfor ( const node of tableModelElement.getChildren() ) {\n\t\tif ( node.is( 'element', 'caption' ) ) {\n\t\t\treturn node;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns the caption model element for a model selection. Returns `null` if the selection has no caption element ancestor.\n *\n * @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n * The selection checked for caption presence.\n * @returns {module:engine/model/element~Element|null}\n */\nexport function getCaptionFromModelSelection( selection ) {\n\tconst tableElement = getSelectionAffectedTable( selection );\n\n\tif ( !tableElement ) {\n\t\treturn null;\n\t}\n\n\treturn getCaptionFromTableModelElement( tableElement );\n}\n\n/**\n * {@link module:engine/view/matcher~Matcher} pattern. Checks if a given element is a caption.\n *\n * There are two possible forms of the valid caption:\n *  - A `<figcaption>` element inside a `<figure class=\"table\">` element.\n *  - A `<caption>` inside a <table>.\n *\n * @param {module:engine/view/element~Element} element\n * @returns {Object|null} Returns the object accepted by {@link module:engine/view/matcher~Matcher} or `null` if the element\n * cannot be matched.\n */\nexport function matchTableCaptionViewElement( element ) {\n\tconst parent = element.parent;\n\n\tif ( element.name == 'figcaption' && parent && parent.name == 'figure' && parent.hasClass( 'table' ) ) {\n\t\treturn { name: true };\n\t}\n\n\tif ( element.name == 'caption' && parent && parent.name == 'table' ) {\n\t\treturn { name: true };\n\t}\n\n\treturn null;\n}\n\n/**\n * Depending on the position of the selection we either return the table under cursor or look for the table higher in the hierarchy.\n *\n * @param {module:engine/model/position~Position} position\n * @returns {module:engine/model/element~Element}\n */\nexport function getSelectionAffectedTable( selection ) {\n\tconst selectedElement = selection.getSelectedElement();\n\n\t// Is the command triggered from the `tableToolbar`?\n\tif ( selectedElement && selectedElement.is( 'element', 'table' ) ) {\n\t\treturn selectedElement;\n\t}\n\n\treturn selection.getFirstPosition().findAncestor( 'table' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n* @module table/tablecaption/toggletablecaptioncommand\n*/\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport { getCaptionFromTableModelElement, getSelectionAffectedTable } from './utils';\n\n/**\n * The toggle table caption command.\n *\n * This command is registered by {@link module:table/tablecaption/tablecaptionediting~TableCaptionEditing} as the\n * `'toggleTableCaption'` editor command.\n *\n * Executing this command:\n *\n * * either adds or removes the table caption of a selected table (depending on whether the caption is present or not),\n * * removes the table caption if the selection is anchored in one.\n *\n *\t\t// Toggle the presence of the caption.\n *\t\teditor.execute( 'toggleTableCaption' );\n *\n * **Note**: You can move the selection to the caption right away as it shows up upon executing this command by using\n * the `focusCaptionOnShow` option:\n *\n *\t\teditor.execute( 'toggleTableCaption', { focusCaptionOnShow: true } );\n *\n * @extends module:core/command~Command\n */\nexport default class ToggleTableCaptionCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst editor = this.editor;\n\t\tconst tableElement = getSelectionAffectedTable( editor.model.document.selection );\n\n\t\tthis.isEnabled = !!tableElement;\n\n\t\tif ( !this.isEnabled ) {\n\t\t\tthis.value = false;\n\t\t} else {\n\t\t\tthis.value = !!getCaptionFromTableModelElement( tableElement );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t *\t\teditor.execute( 'toggleTableCaption' );\n\t *\n\t * @param {Object} [options] Options for the executed command.\n\t * @param {String} [options.focusCaptionOnShow] When true and the caption shows up, the selection will be moved into it straight away.\n\t * @fires execute\n\t */\n\texecute( options = {} ) {\n\t\tconst { focusCaptionOnShow } = options;\n\n\t\tthis.editor.model.change( writer => {\n\t\t\tif ( this.value ) {\n\t\t\t\tthis._hideTableCaption( writer );\n\t\t\t} else {\n\t\t\t\tthis._showTableCaption( writer, focusCaptionOnShow );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the table caption. Also:\n\t *\n\t * * it attempts to restore the caption content from the `TableCaptionEditing` caption registry,\n\t * * it moves the selection to the caption right away, it the `focusCaptionOnShow` option was set.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t * @param {Boolean} focusCaptionOnShow Default focus behavior when showing the caption.\n\t */\n\t_showTableCaption( writer, focusCaptionOnShow ) {\n\t\tconst model = this.editor.model;\n\t\tconst tableElement = getSelectionAffectedTable( model.document.selection );\n\t\tconst tableCaptionEditing = this.editor.plugins.get( 'TableCaptionEditing' );\n\t\tconst savedCaptionElement = tableCaptionEditing._getSavedCaption( tableElement );\n\n\t\t// Try restoring the caption from the TableCaptionEditing plugin storage.\n\t\tconst newCaptionElement = savedCaptionElement || writer.createElement( 'caption' );\n\n\t\tmodel.insertContent( newCaptionElement, tableElement, 'end' );\n\n\t\tif ( focusCaptionOnShow ) {\n\t\t\twriter.setSelection( newCaptionElement, 'in' );\n\t\t}\n\t}\n\n\t/**\n\t * Hides the caption of a selected table (or an table caption the selection is anchored to).\n\t *\n\t * The content of the caption is stored in the `TableCaptionEditing` caption registry to make this\n\t * a reversible action.\n\t *\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t */\n\t_hideTableCaption( writer ) {\n\t\tconst model = this.editor.model;\n\t\tconst tableElement = getSelectionAffectedTable( model.document.selection );\n\t\tconst tableCaptionEditing = this.editor.plugins.get( 'TableCaptionEditing' );\n\t\tconst captionElement = getCaptionFromTableModelElement( tableElement );\n\n\t\t// Store the caption content so it can be restored quickly if the user changes their mind.\n\t\ttableCaptionEditing._saveCaption( tableElement, captionElement );\n\n\t\tmodel.deleteContent( writer.createSelection( captionElement, 'on' ) );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecaption/tablecaptionediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Element, enablePlaceholder } from 'ckeditor5/src/engine';\nimport { toWidgetEditable } from 'ckeditor5/src/widget';\n\nimport injectTableCaptionPostFixer from '../converters/table-caption-post-fixer';\nimport ToggleTableCaptionCommand from './toggletablecaptioncommand';\nimport { isTable, matchTableCaptionViewElement } from './utils';\n\n/**\n * The table caption editing plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableCaptionEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableCaptionEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A map that keeps saved JSONified table captions and table model elements they are\n\t\t * associated with.\n\t\t *\n\t\t * To learn more about this system, see {@link #_saveCaption}.\n\t\t *\n\t\t * @member {WeakMap.<module:engine/model/element~Element,Object>}\n\t\t */\n\t\tthis._savedCaptionsMap = new WeakMap();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst view = editor.editing.view;\n\t\tconst t = editor.t;\n\n\t\tif ( !schema.isRegistered( 'caption' ) ) {\n\t\t\tschema.register( 'caption', {\n\t\t\t\tallowIn: 'table',\n\t\t\t\tallowContentOf: '$block',\n\t\t\t\tisLimit: true\n\t\t\t} );\n\t\t} else {\n\t\t\tschema.extend( 'caption', {\n\t\t\t\tallowIn: 'table'\n\t\t\t} );\n\t\t}\n\n\t\teditor.commands.add( 'toggleTableCaption', new ToggleTableCaptionCommand( this.editor ) );\n\n\t\t// View -> model converter for the data pipeline.\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tview: matchTableCaptionViewElement,\n\t\t\tmodel: 'caption'\n\t\t} );\n\n\t\t// Model -> view converter for the data pipeline.\n\t\teditor.conversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !isTable( modelElement.parent ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createContainerElement( 'figcaption' );\n\t\t\t}\n\t\t} );\n\n\t\t// Model -> view converter for the editing pipeline.\n\t\teditor.conversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !isTable( modelElement.parent ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tconst figcaptionElement = writer.createEditableElement( 'figcaption' );\n\t\t\t\twriter.setCustomProperty( 'tableCaption', true, figcaptionElement );\n\n\t\t\t\tenablePlaceholder( {\n\t\t\t\t\tview,\n\t\t\t\t\telement: figcaptionElement,\n\t\t\t\t\ttext: t( 'Enter table caption' ),\n\t\t\t\t\tkeepOnFocus: true\n\t\t\t\t} );\n\n\t\t\t\treturn toWidgetEditable( figcaptionElement, writer );\n\t\t\t}\n\t\t} );\n\n\t\tinjectTableCaptionPostFixer( editor.model );\n\t}\n\n\t/**\n\t * Returns the saved {@link module:engine/model/element~Element#toJSON JSONified} caption\n\t * of a table model element.\n\t *\n\t * See {@link #_saveCaption}.\n\t *\n\t * @protected\n\t * @param {module:engine/model/element~Element} tableModelElement The model element the\n\t * caption should be returned for.\n\t * @returns {module:engine/model/element~Element|null} The model caption element or `null` if there is none.\n\t */\n\t_getSavedCaption( tableModelElement ) {\n\t\tconst jsonObject = this._savedCaptionsMap.get( tableModelElement );\n\n\t\treturn jsonObject ? Element.fromJSON( jsonObject ) : null;\n\t}\n\n\t/**\n\t * Saves a {@link module:engine/model/element~Element#toJSON JSONified} caption for\n\t * a table element to allow restoring it in the future.\n\t *\n\t * A caption is saved every time it gets hidden. The\n\t * user should be able to restore it on demand.\n\t *\n\t * **Note**: The caption cannot be stored in the table model element attribute because,\n\t * for instance, when the model state propagates to collaborators, the attribute would get\n\t * lost (mainly because it does not convert to anything when the caption is hidden) and\n\t * the states of collaborators' models would de-synchronize causing numerous issues.\n\t *\n\t * See {@link #_getSavedCaption}.\n\t *\n\t * @protected\n\t * @param {module:engine/model/element~Element} tableModelElement The model element the\n\t * caption is saved for.\n\t * @param {module:engine/model/element~Element} caption The caption model element to be saved.\n\t */\n\t_saveCaption( tableModelElement, caption ) {\n\t\tthis._savedCaptionsMap.set( tableModelElement, caption.toJSON() );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n* @module table/tablecaption/tablecaptionui\n*/\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport { getCaptionFromModelSelection } from './utils';\n\n/**\n  * The table caption UI plugin. It introduces the `'toggleTableCaption'` UI button.\n  *\n  * @extends module:core/plugin~Plugin\n  */\nexport default class TableCaptionUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableCaptionUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'toggleTableCaption', locale => {\n\t\t\tconst command = editor.commands.get( 'toggleTableCaption' );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\ticon: icons.caption,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\t\t\tview.bind( 'label' ).to( command, 'value', value => value ? t( 'Toggle caption off' ) : t( 'Toggle caption on' ) );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'toggleTableCaption', { focusCaptionOnShow: true } );\n\n\t\t\t\t// Scroll to the selection and highlight the caption if the caption showed up.\n\t\t\t\tif ( command.value ) {\n\t\t\t\t\tconst modelCaptionElement = getCaptionFromModelSelection( editor.model.document.selection );\n\t\t\t\t\tconst figcaptionElement = editor.editing.mapper.toViewElement( modelCaptionElement );\n\n\t\t\t\t\tif ( !figcaptionElement ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\teditingView.scrollToTheSelection();\n\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\twriter.addClass( 'table__caption_highlighted', figcaptionElement );\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tablecaption.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M19 9v10h-2v-8h-2V9h4zM4 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H10a1 1 0 0 1-1-1V11H4v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H3a1 1 0 0 1 1 1v4.5z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingbuttonsui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport { getLocalizedOptions } from './utils';\nimport iconHeading1 from '../theme/icons/heading1.svg';\nimport iconHeading2 from '../theme/icons/heading2.svg';\nimport iconHeading3 from '../theme/icons/heading3.svg';\nimport iconHeading4 from '../theme/icons/heading4.svg';\nimport iconHeading5 from '../theme/icons/heading5.svg';\nimport iconHeading6 from '../theme/icons/heading6.svg';\n\nconst defaultIcons = {\n\theading1: iconHeading1,\n\theading2: iconHeading2,\n\theading3: iconHeading3,\n\theading4: iconHeading4,\n\theading5: iconHeading5,\n\theading6: iconHeading6\n};\n\n/**\n * The `HeadingButtonsUI` plugin defines a set of UI buttons that can be used instead of the\n * standard drop down component.\n *\n * This feature is not enabled by default by the {@link module:heading/heading~Heading} plugin and needs to be\n * installed manually to the editor configuration.\n *\n * Plugin introduces button UI elements, which names are same as `model` property from {@link module:heading/heading~HeadingOption}.\n *\n *\t\tClassicEditor\n *\t\t\t.create( {\n *\t\t\t\tplugins: [ ..., Heading, Paragraph, HeadingButtonsUI, ParagraphButtonUI ]\n *\t\t\t\theading: {\n *\t\t\t\t\toptions: [\n *\t\t\t\t\t\t{ model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },\n *\t\t\t\t\t\t{ model: 'heading1', view: 'h2', title: 'Heading 1', class: 'ck-heading_heading1' },\n *\t\t\t\t\t\t{ model: 'heading2', view: 'h3', title: 'Heading 2', class: 'ck-heading_heading2' },\n *\t\t\t\t\t\t{ model: 'heading3', view: 'h4', title: 'Heading 3', class: 'ck-heading_heading3' }\n *\t\t\t\t\t]\n * \t\t\t\t},\n * \t\t\t\ttoolbar: [ 'paragraph', 'heading1', 'heading2', 'heading3' ]\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * NOTE: The `'paragraph'` button is defined in by the {@link module:paragraph/paragraphbuttonui~ParagraphButtonUI} plugin\n * which needs to be loaded manually as well.\n *\n * It is possible to use custom icons by providing `icon` config option in {@link module:heading/heading~HeadingOption}.\n * For the default configuration standard icons are used.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class HeadingButtonsUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst options = getLocalizedOptions( this.editor );\n\n\t\toptions\n\t\t\t.filter( item => item.model !== 'paragraph' )\n\t\t\t.map( item => this._createButton( item ) );\n\t}\n\n\t/**\n\t * Creates single button view from provided configuration option.\n\t *\n\t * @private\n\t * @param {Object} option\n\t */\n\t_createButton( option ) {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( option.model, locale => {\n\t\t\tconst view = new ButtonView( locale );\n\t\t\tconst command = editor.commands.get( 'heading' );\n\n\t\t\tview.label = option.title;\n\t\t\tview.icon = option.icon || defaultIcons[ option.model ];\n\t\t\tview.tooltip = true;\n\t\t\tview.isToggleable = true;\n\t\t\tview.bind( 'isEnabled' ).to( command );\n\t\t\tview.bind( 'isOn' ).to( command, 'value', value => value == option.model );\n\n\t\t\tview.on( 'execute', () => {\n\t\t\t\teditor.execute( 'heading', { value: option.model } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H9a1 1 0 0 1-1-1V11H3v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H2a1 1 0 0 1 1 1v4.5zm16.076 8.343V18.5h-6.252c.067-.626.27-1.22.61-1.78.338-.561 1.006-1.305 2.005-2.232.804-.749 1.297-1.257 1.479-1.523.245-.368.368-.732.368-1.092 0-.398-.107-.703-.32-.917-.214-.214-.51-.32-.886-.32-.372 0-.669.111-.889.336-.22.224-.347.596-.38 1.117l-1.778-.178c.106-.982.438-1.686.997-2.114.558-.427 1.257-.64 2.095-.64.918 0 1.64.247 2.164.742.525.495.787 1.11.787 1.847 0 .419-.075.818-.225 1.197-.15.378-.388.775-.714 1.19-.216.275-.605.67-1.168 1.187-.563.516-.92.859-1.07 1.028a3.11 3.11 0 0 0-.365.495h3.542z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H9a1 1 0 0 1-1-1V11H3v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H2a1 1 0 0 1 1 1v4.5zm9.989 7.53 1.726-.209c.055.44.203.777.445 1.01.24.232.533.349.876.349.368 0 .678-.14.93-.42.251-.279.377-.655.377-1.13 0-.448-.12-.803-.362-1.066a1.153 1.153 0 0 0-.882-.393c-.228 0-.501.044-.819.133l.197-1.453c.482.012.85-.092 1.105-.315.253-.222.38-.517.38-.885 0-.313-.093-.563-.279-.75-.186-.185-.434-.278-.743-.278a1.07 1.07 0 0 0-.78.317c-.216.212-.347.52-.394.927l-1.644-.28c.114-.562.287-1.012.517-1.348.231-.337.553-.601.965-.794a3.24 3.24 0 0 1 1.387-.289c.876 0 1.579.28 2.108.838.436.457.653.973.653 1.549 0 .817-.446 1.468-1.339 1.955.533.114.96.37 1.28.768.319.398.478.878.478 1.441 0 .817-.298 1.513-.895 2.088-.596.576-1.339.864-2.228.864-.842 0-1.54-.243-2.094-.727-.555-.485-.876-1.118-.965-1.901z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3.5 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm13.55 10v-1.873h-3.81v-1.561l4.037-5.91h1.498v5.904h1.156v1.567h-1.156V18.5H17.05zm0-3.44v-3.18l-2.14 3.18h2.14z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3.5 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm9.578 7.607 1.777-.184c.05.402.201.72.45.955a1.223 1.223 0 0 0 1.81-.101c.258-.303.387-.759.387-1.368 0-.572-.128-1-.384-1.286-.256-.285-.59-.428-1-.428-.512 0-.971.226-1.377.679l-1.448-.21.915-4.843h4.716v1.67H15.56l-.28 1.58a2.697 2.697 0 0 1 1.219-.298 2.68 2.68 0 0 1 2.012.863c.55.576.825 1.323.825 2.241a3.36 3.36 0 0 1-.666 2.05c-.605.821-1.445 1.232-2.52 1.232-.86 0-1.56-.23-2.101-.692-.542-.461-.866-1.081-.971-1.86z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3.5 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm15.595 2.973-1.726.19c-.043-.355-.153-.617-.33-.787-.178-.169-.409-.253-.692-.253-.377 0-.695.169-.956.507-.26.339-.424 1.043-.492 2.114.445-.525.997-.787 1.657-.787.745 0 1.383.284 1.914.85.531.568.797 1.3.797 2.197 0 .952-.28 1.716-.838 2.291-.559.576-1.276.864-2.152.864-.94 0-1.712-.365-2.317-1.095-.605-.73-.908-1.927-.908-3.59 0-1.705.316-2.935.946-3.688.63-.753 1.45-1.13 2.457-1.13.706 0 1.291.198 1.755.594.463.395.758.97.885 1.723zm-4.043 3.891c0 .58.133 1.028.4 1.343.266.315.57.473.914.473.33 0 .605-.13.825-.388.22-.258.33-.68.33-1.27 0-.604-.118-1.047-.355-1.329a1.115 1.115 0 0 0-.89-.422c-.342 0-.632.134-.869.403s-.355.666-.355 1.19z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\n/**\n * The base font command.\n *\n * @extends module:core/command~Command\n */\nexport default class FontCommand extends Command {\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor Editor instance.\n\t * @param {String} attributeKey The name of a model attribute on which this command operates.\n\t */\n\tconstructor( editor, attributeKey ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * When set, it reflects the {@link #attributeKey} value of the selection.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {String} module:font/fontcommand~FontCommand#value\n\t\t */\n\n\t\t/**\n\t\t * A model attribute on which this command operates.\n\t\t *\n\t\t * @readonly\n\t\t * @member {Boolean} module:font/fontcommand~FontCommand#attributeKey\n\t\t */\n\t\tthis.attributeKey = attributeKey;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.value = doc.selection.getAttribute( this.attributeKey );\n\t\tthis.isEnabled = model.schema.checkAttributeInSelection( doc.selection, this.attributeKey );\n\t}\n\n\t/**\n\t * Executes the command. Applies the `value` of the {@link #attributeKey} to the selection.\n\t * If no `value` is passed, it removes the attribute from the selection.\n\t *\n\t * @protected\n\t * @param {Object} [options] Options for the executed command.\n\t * @param {String} [options.value] The value to apply.\n\t * @fires execute\n\t */\n\texecute( options = {} ) {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst selection = document.selection;\n\n\t\tconst value = options.value;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tif ( value ) {\n\t\t\t\t\twriter.setSelectionAttribute( this.attributeKey, value );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeSelectionAttribute( this.attributeKey );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst ranges = model.schema.getValidRanges( selection.getRanges(), this.attributeKey );\n\n\t\t\t\tfor ( const range of ranges ) {\n\t\t\t\t\tif ( value ) {\n\t\t\t\t\t\twriter.setAttribute( this.attributeKey, value, range );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.removeAttribute( this.attributeKey, range );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/documentcolorcollection\n */\n\nimport { Collection, ObservableMixin, mix } from 'ckeditor5/src/utils';\n\n/**\n * A collection to store document colors. It enforces colors to be unique.\n *\n * @mixes module:utils/observablemixin~ObservableMixin\n * @extends module:utils/collection~Collection\n */\nexport default class DocumentColorCollection extends Collection {\n\tconstructor( options ) {\n\t\tsuper( options );\n\n\t\t/**\n\t\t * Indicates whether the document color collection is empty.\n\t\t *\n\t\t * @observable\n\t\t * @readonly\n\t\t * @member {Boolean} #isEmpty\n\t\t */\n\t\tthis.set( 'isEmpty', true );\n\n\t\tthis.on( 'change', () => {\n\t\t\tthis.set( 'isEmpty', this.length === 0 );\n\t\t} );\n\t}\n\n\t/**\n\t * Adds a color to the document color collection.\n\t *\n\t * This method ensures that no color duplicates are inserted (compared using\n\t * the color value of the {@link module:ui/colorgrid/colorgrid~ColorDefinition}).\n\t *\n\t * If the item does not have an ID, it will be automatically generated and set on the item.\n\t *\n\t * @chainable\n\t * @param {module:ui/colorgrid/colorgrid~ColorDefinition} item\n\t * @param {Number} [index] The position of the item in the collection. The item\n\t * is pushed to the collection when `index` is not specified.\n\t * @fires add\n\t * @fires change\n\t */\n\tadd( item, index ) {\n\t\tif ( this.find( element => element.color === item.color ) ) {\n\t\t\t// No duplicates are allowed.\n\t\t\treturn;\n\t\t}\n\n\t\tsuper.add( item, index );\n\t}\n\n\t/**\n\t * Checks if an object with given colors is present in the document color collection.\n\t *\n\t * @param {String} color\n\t * @returns {Boolean}\n\t */\n\thasColor( color ) {\n\t\treturn !!this.find( item => item.color === color );\n\t}\n}\n\nmix( DocumentColorCollection, ObservableMixin );\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./fontcolor.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/ui/colortableview\n */\n\nimport { icons } from 'ckeditor5/src/core';\nimport {\n\tButtonView,\n\tColorGridView,\n\tColorTileView,\n\tFocusCycler,\n\tLabelView,\n\tTemplate,\n\tView,\n\tViewCollection\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler } from 'ckeditor5/src/utils';\n\nimport DocumentColorCollection from '../documentcolorcollection';\n\nimport '../../theme/fontcolor.css';\n\n/**\n * A class which represents a view with the following sub–components:\n *\n * * A remove color button,\n * * A static {@link module:ui/colorgrid/colorgrid~ColorGridView} of colors defined in the configuration,\n * * A dynamic {@link module:ui/colorgrid/colorgrid~ColorGridView} of colors used in the document.\n *\n * @extends module:ui/view~View\n */\nexport default class ColorTableView extends View {\n\t/**\n\t * Creates a view to be inserted as a child of {@link module:ui/dropdown/dropdownview~DropdownView}.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The localization services instance.\n\t * @param {Object} config The configuration object.\n\t * @param {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>} config.colors An array with definitions of colors to\n\t * be displayed in the table.\n\t * @param {Number} config.columns The number of columns in the color grid.\n\t * @param {String} config.removeButtonLabel The label of the button responsible for removing the color.\n\t * @param {String} config.documentColorsLabel The label for the section with the document colors.\n\t * @param {Number} config.documentColorsCount The number of colors in the document colors section inside the color dropdown.\n\t */\n\tconstructor( locale, { colors, columns, removeButtonLabel, documentColorsLabel, documentColorsCount } ) {\n\t\tsuper( locale );\n\n\t\t/**\n\t\t * A collection of the children of the table.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis.items = this.createCollection();\n\n\t\t/**\n\t\t * An array with objects representing colors to be displayed in the grid.\n\t\t *\n\t\t * @type {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>}\n\t\t */\n\t\tthis.colorDefinitions = colors;\n\n\t\t/**\n\t\t * Tracks information about the DOM focus in the list.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/focustracker~FocusTracker}\n\t\t */\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t/**\n\t\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:utils/keystrokehandler~KeystrokeHandler}\n\t\t */\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\t/**\n\t\t * Keeps the value of the command associated with the table for the current selection.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.set( 'selectedColor' );\n\n\t\t/**\n\t\t * The label of the button responsible for removing color attributes.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.removeButtonLabel = removeButtonLabel;\n\n\t\t/**\n\t\t * The number of columns in the color grid.\n\t\t *\n\t\t * @type {Number}\n\t\t */\n\t\tthis.columns = columns;\n\n\t\t/**\n\t\t * A collection of definitions that store the document colors.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:font/documentcolorcollection~DocumentColorCollection}\n\t\t */\n\t\tthis.documentColors = new DocumentColorCollection();\n\n\t\t/**\n\t\t * The maximum number of colors in the document colors section.\n\t\t * If it equals 0, the document colors section is not added.\n\t\t *\n\t\t * @readonly\n\t\t * @type {Number}\n\t\t */\n\t\tthis.documentColorsCount = documentColorsCount;\n\n\t\t/**\n\t\t * A collection of views that can be focused in the view.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/viewcollection~ViewCollection}\n\t\t */\n\t\tthis._focusables = new ViewCollection();\n\n\t\t/**\n\t\t * Preserves the reference to {@link module:ui/colorgrid/colorgrid~ColorGridView} used to create\n\t\t * the default (static) color set.\n\t\t *\n\t\t * The property is loaded once the the parent dropdown is opened the first time.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/colorgrid/colorgrid~ColorGridView|undefined} #staticColorsGrid\n\t\t */\n\n\t\t/**\n\t\t * Preserves the reference to {@link module:ui/colorgrid/colorgrid~ColorGridView} used to create\n\t\t * the document colors. It remains undefined if the document colors feature is disabled.\n\t\t *\n\t\t * The property is loaded once the the parent dropdown is opened the first time.\n\t\t *\n\t\t * @readonly\n\t\t * @member {module:ui/colorgrid/colorgrid~ColorGridView|undefined} #documentColorsGrid\n\t\t */\n\n\t\t/**\n\t\t * Helps cycling over focusable {@link #items} in the list.\n\t\t *\n\t\t * @readonly\n\t\t * @protected\n\t\t * @member {module:ui/focuscycler~FocusCycler}\n\t\t */\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate list items backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate list items forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\t/**\n\t\t * Document color section's label.\n\t\t *\n\t\t * @private\n\t\t * @readonly\n\t\t * @type {String}\n\t\t */\n\t\tthis._documentColorsLabel = documentColorsLabel;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-color-table'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: this.items\n\t\t} );\n\n\t\tthis.items.add( this._createRemoveColorButton() );\n\t}\n\n\t/**\n\t * Scans through the editor model and searches for text node attributes with the given attribute name.\n\t * Found entries are set as document colors.\n\t *\n\t * All the previously stored document colors will be lost in the process.\n\t *\n\t * @param {module:engine/model/model~Model} model The model used as a source to obtain the document colors.\n\t * @param {String} attributeName Determines the name of the related model's attribute for a given dropdown.\n\t */\n\tupdateDocumentColors( model, attributeName ) {\n\t\tconst document = model.document;\n\t\tconst maxCount = this.documentColorsCount;\n\n\t\tthis.documentColors.clear();\n\n\t\tfor ( const rootName of document.getRootNames() ) {\n\t\t\tconst root = document.getRoot( rootName );\n\t\t\tconst range = model.createRangeIn( root );\n\n\t\t\tfor ( const node of range.getItems() ) {\n\t\t\t\tif ( node.is( '$textProxy' ) && node.hasAttribute( attributeName ) ) {\n\t\t\t\t\tthis._addColorToDocumentColors( node.getAttribute( attributeName ) );\n\n\t\t\t\t\tif ( this.documentColors.length >= maxCount ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Refreshes the state of the selected color in one or both {@link module:ui/colorgrid/colorgrid~ColorGridView}s\n\t * available in the {@link module:font/ui/colortableview~ColorTableView}. It guarantees that the selection will occur only in one\n\t * of them.\n\t */\n\tupdateSelectedColors() {\n\t\tconst documentColorsGrid = this.documentColorsGrid;\n\t\tconst staticColorsGrid = this.staticColorsGrid;\n\t\tconst selectedColor = this.selectedColor;\n\n\t\tstaticColorsGrid.selectedColor = selectedColor;\n\n\t\tif ( documentColorsGrid ) {\n\t\t\tdocumentColorsGrid.selectedColor = selectedColor;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Appends {@link #staticColorsGrid} and {@link #documentColorsGrid} views.\n\t */\n\tappendGrids() {\n\t\tif ( this.staticColorsGrid ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.staticColorsGrid = this._createStaticColorsGrid();\n\n\t\tthis.items.add( this.staticColorsGrid );\n\t\tthis.focusTracker.add( this.staticColorsGrid.element );\n\t\tthis._focusables.add( this.staticColorsGrid );\n\n\t\tif ( this.documentColorsCount ) {\n\t\t\t// Create a label for document colors.\n\t\t\tconst bind = Template.bind( this.documentColors, this.documentColors );\n\t\t\tconst label = new LabelView( this.locale );\n\t\t\tlabel.text = this._documentColorsLabel;\n\t\t\tlabel.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t'ck-color-grid__label',\n\t\t\t\t\t\tbind.if( 'isEmpty', 'ck-hidden' )\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\t\t\tthis.items.add( label );\n\t\t\tthis.documentColorsGrid = this._createDocumentColorsGrid();\n\n\t\t\tthis.items.add( this.documentColorsGrid );\n\t\t\tthis.focusTracker.add( this.documentColorsGrid.element );\n\t\t\tthis._focusables.add( this.documentColorsGrid );\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the first focusable element in {@link #items}.\n\t */\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Focuses the last focusable element in {@link #items}.\n\t */\n\tfocusLast() {\n\t\tthis._focusCycler.focusLast();\n\t}\n\n\t/**\n\t * Adds the remove color button as a child of the current view.\n\t *\n\t * @private\n\t * @returns {module:ui/button/buttonview~ButtonView}\n\t */\n\t_createRemoveColorButton() {\n\t\tconst buttonView = new ButtonView();\n\n\t\tbuttonView.set( {\n\t\t\twithText: true,\n\t\t\ticon: icons.eraser,\n\t\t\tlabel: this.removeButtonLabel\n\t\t} );\n\n\t\tbuttonView.class = 'ck-color-table__remove-color';\n\t\tbuttonView.on( 'execute', () => {\n\t\t\tthis.fire( 'execute', { value: null } );\n\t\t} );\n\n\t\tbuttonView.render();\n\n\t\tthis.focusTracker.add( buttonView.element );\n\t\tthis._focusables.add( buttonView );\n\n\t\treturn buttonView;\n\t}\n\n\t/**\n\t * Creates a static color table grid based on the editor configuration.\n\t *\n\t * @private\n\t * @returns {module:ui/colorgrid/colorgrid~ColorGridView}\n\t */\n\t_createStaticColorsGrid() {\n\t\tconst colorGrid = new ColorGridView( this.locale, {\n\t\t\tcolorDefinitions: this.colorDefinitions,\n\t\t\tcolumns: this.columns\n\t\t} );\n\n\t\tcolorGrid.delegate( 'execute' ).to( this );\n\n\t\treturn colorGrid;\n\t}\n\n\t/**\n\t * Creates the document colors section view and binds it to {@link #documentColors}.\n\t *\n\t * @private\n\t * @returns {module:ui/colorgrid/colorgrid~ColorGridView}\n\t */\n\t_createDocumentColorsGrid() {\n\t\tconst bind = Template.bind( this.documentColors, this.documentColors );\n\t\tconst documentColorsGrid = new ColorGridView( this.locale, {\n\t\t\tcolumns: this.columns\n\t\t} );\n\n\t\tdocumentColorsGrid.delegate( 'execute' ).to( this );\n\n\t\tdocumentColorsGrid.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: bind.if( 'isEmpty', 'ck-hidden' )\n\t\t\t}\n\t\t} );\n\n\t\tdocumentColorsGrid.items.bindTo( this.documentColors ).using(\n\t\t\tcolorObj => {\n\t\t\t\tconst colorTile = new ColorTileView();\n\n\t\t\t\tcolorTile.set( {\n\t\t\t\t\tcolor: colorObj.color,\n\t\t\t\t\thasBorder: colorObj.options && colorObj.options.hasBorder\n\t\t\t\t} );\n\n\t\t\t\tif ( colorObj.label ) {\n\t\t\t\t\tcolorTile.set( {\n\t\t\t\t\t\tlabel: colorObj.label,\n\t\t\t\t\t\ttooltip: true\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\tcolorTile.on( 'execute', () => {\n\t\t\t\t\tthis.fire( 'execute', {\n\t\t\t\t\t\tvalue: colorObj.color\n\t\t\t\t\t} );\n\t\t\t\t} );\n\n\t\t\t\treturn colorTile;\n\t\t\t}\n\t\t);\n\n\t\t// Selected color should be cleared when document colors became empty.\n\t\tthis.documentColors.on( 'change:isEmpty', ( evt, name, val ) => {\n\t\t\tif ( val ) {\n\t\t\t\tdocumentColorsGrid.selectedColor = null;\n\t\t\t}\n\t\t} );\n\n\t\treturn documentColorsGrid;\n\t}\n\n\t/**\n\t * Adds a given color to the document colors list. If possible, the method will attempt to use\n\t * data from the {@link #colorDefinitions} (label, color options).\n\t *\n\t * @private\n\t * @param {String} color A string that stores the value of the recently applied color.\n\t */\n\t_addColorToDocumentColors( color ) {\n\t\tconst predefinedColor = this.colorDefinitions\n\t\t\t.find( definition => definition.color === color );\n\n\t\tif ( !predefinedColor ) {\n\t\t\tthis.documentColors.add( {\n\t\t\t\tcolor,\n\t\t\t\tlabel: color,\n\t\t\t\toptions: {\n\t\t\t\t\thasBorder: false\n\t\t\t\t}\n\t\t\t} );\n\t\t} else {\n\t\t\tthis.documentColors.add( Object.assign( {}, predefinedColor ) );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/utils\n */\n\nimport ColorTableView from './ui/colortableview';\n\n/**\n * The name of the font size plugin.\n */\nexport const FONT_SIZE = 'fontSize';\n\n/**\n * The name of the font family plugin.\n */\nexport const FONT_FAMILY = 'fontFamily';\n\n/**\n * The name of the font color plugin.\n */\nexport const FONT_COLOR = 'fontColor';\n\n/**\n * The name of the font background color plugin.\n */\nexport const FONT_BACKGROUND_COLOR = 'fontBackgroundColor';\n\n/**\n * Builds a proper {@link module:engine/conversion/conversion~ConverterDefinition converter definition} out of input data.\n *\n * @param {String} modelAttributeKey Key\n * @param {Array.<module:font/fontfamily~FontFamilyOption>|Array.<module:font/fontsize~FontSizeOption>} options\n * @returns {module:engine/conversion/conversion~ConverterDefinition}\n */\nexport function buildDefinition( modelAttributeKey, options ) {\n\tconst definition = {\n\t\tmodel: {\n\t\t\tkey: modelAttributeKey,\n\t\t\tvalues: []\n\t\t},\n\t\tview: {},\n\t\tupcastAlso: {}\n\t};\n\n\tfor ( const option of options ) {\n\t\tdefinition.model.values.push( option.model );\n\t\tdefinition.view[ option.model ] = option.view;\n\n\t\tif ( option.upcastAlso ) {\n\t\t\tdefinition.upcastAlso[ option.model ] = option.upcastAlso;\n\t\t}\n\t}\n\n\treturn definition;\n}\n\n/**\n * A {@link module:font/fontcolor~FontColor font color} and\n * {@link module:font/fontbackgroundcolor~FontBackgroundColor font background color} helper\n * responsible for upcasting data to the model.\n *\n * **Note**: The `styleAttr` parameter should be either `'color'` or `'background-color'`.\n *\n * @param {String} styleAttr\n * @return {String}\n */\nexport function renderUpcastAttribute( styleAttr ) {\n\treturn viewElement => normalizeColorCode( viewElement.getStyle( styleAttr ) );\n}\n\n/**\n * A {@link module:font/fontcolor~FontColor font color} and\n * {@link module:font/fontbackgroundcolor~FontBackgroundColor font background color} helper\n * responsible for downcasting a color attribute to a `<span>` element.\n *\n * **Note**: The `styleAttr` parameter should be either `'color'` or `'background-color'`.\n *\n * @param {String} styleAttr\n */\nexport function renderDowncastElement( styleAttr ) {\n\treturn ( modelAttributeValue, { writer } ) => writer.createAttributeElement( 'span', {\n\t\tstyle: `${ styleAttr }:${ modelAttributeValue }`\n\t}, { priority: 7 } );\n}\n\n/**\n * A helper that adds {@link module:font/ui/colortableview~ColorTableView} to the color dropdown with proper initial values.\n *\n * @param {Object} config The configuration object.\n * @param {module:ui/dropdown/dropdownview~DropdownView} config.dropdownView The dropdown view to which\n * a {@link module:font/ui/colortableview~ColorTableView} will be added.\n * @param {Array.<module:ui/colorgrid/colorgrid~ColorDefinition>} config.colors An array with definitions\n * representing colors to be displayed in the color table.\n * @param {String} config.removeButtonLabel The label for the button responsible for removing the color.\n * @param {String} config.documentColorsLabel The label for the section with document colors.\n * @param {String} config.documentColorsCount The number of document colors inside the dropdown.\n * @returns {module:font/ui/colortableview~ColorTableView} The new color table view.\n */\nexport function addColorTableToDropdown( { dropdownView, colors, columns, removeButtonLabel, documentColorsLabel, documentColorsCount } ) {\n\tconst locale = dropdownView.locale;\n\tconst colorTableView = new ColorTableView( locale, { colors, columns, removeButtonLabel, documentColorsLabel, documentColorsCount } );\n\n\tdropdownView.colorTableView = colorTableView;\n\tdropdownView.panelView.children.add( colorTableView );\n\n\tcolorTableView.delegate( 'execute' ).to( dropdownView, 'execute' );\n\n\treturn colorTableView;\n}\n\n// Fixes the color value string.\n//\n// @param {String} value\n// @returns {String}\nfunction normalizeColorCode( value ) {\n\treturn value.replace( /\\s/g, '' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily/fontfamilycommand\n */\n\nimport FontCommand from '../fontcommand';\nimport { FONT_FAMILY } from '../utils';\n\n/**\n * The font family command. It is used by {@link module:font/fontfamily/fontfamilyediting~FontFamilyEditing}\n * to apply the font family.\n *\n *\t\teditor.execute( 'fontFamily', { value: 'Arial' } );\n *\n * **Note**: Executing the command without the value removes the attribute from the model.\n *\n * @extends module:font/fontcommand~FontCommand\n */\nexport default class FontFamilyCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor, FONT_FAMILY );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily/utils\n */\n\n/**\n * Normalizes the {@link module:font/fontfamily~FontFamilyConfig#options configuration options}\n * to the {@link module:font/fontfamily~FontFamilyOption} format.\n *\n * @param {Array.<String|Object>} configuredOptions An array of options taken from the configuration.\n * @returns {Array.<module:font/fontfamily~FontFamilyOption>}\n */\nexport function normalizeOptions( configuredOptions ) {\n\t// Convert options to objects.\n\treturn configuredOptions\n\t\t.map( getOptionDefinition )\n\t\t// Filter out undefined values that `getOptionDefinition` might return.\n\t\t.filter( option => !!option );\n}\n\n// Returns an option definition either created from string shortcut.\n// If object is passed then this method will return it without alternating it. Returns undefined for item than cannot be parsed.\n//\n// @param {String|Object} option\n// @returns {undefined|module:font/fontfamily~FontFamilyOption}\nfunction getOptionDefinition( option ) {\n\t// Treat any object as full item definition provided by user in configuration.\n\tif ( typeof option === 'object' ) {\n\t\treturn option;\n\t}\n\n\t// Handle 'default' string as a special case. It will be used to remove the fontFamily attribute.\n\tif ( option === 'default' ) {\n\t\treturn {\n\t\t\ttitle: 'Default',\n\t\t\tmodel: undefined\n\t\t};\n\t}\n\n\t// Ignore values that we cannot parse to a definition.\n\tif ( typeof option !== 'string' ) {\n\t\treturn;\n\t}\n\n\t// Return font family definition from font string.\n\treturn generateFontPreset( option );\n}\n\n// Creates a predefined preset for pixel size. It deconstructs font-family like string into full configuration option.\n// A font definition is passed as coma delimited set of font family names. Font names might be quoted.\n//\n// @param {String} A font definition form configuration.\nfunction generateFontPreset( fontDefinition ) {\n\t// Remove quotes from font names. They will be normalized later.\n\tconst fontNames = fontDefinition.replace( /\"|'/g, '' ).split( ',' );\n\n\t// The first matched font name will be used as dropdown list item title and as model value.\n\tconst firstFontName = fontNames[ 0 ];\n\n\t// CSS-compatible font names.\n\tconst cssFontNames = fontNames.map( normalizeFontNameForCSS ).join( ', ' );\n\n\treturn {\n\t\ttitle: firstFontName,\n\t\tmodel: cssFontNames,\n\t\tview: {\n\t\t\tname: 'span',\n\t\t\tstyles: {\n\t\t\t\t'font-family': cssFontNames\n\t\t\t},\n\t\t\tpriority: 7\n\t\t}\n\t};\n}\n\n// Normalizes font name for the style attribute. It adds braces (') if font name contains spaces.\n//\n// @param {String} fontName\n// @returns {String}\nfunction normalizeFontNameForCSS( fontName ) {\n\tfontName = fontName.trim();\n\n\t// Compound font names should be quoted.\n\tif ( fontName.indexOf( ' ' ) > 0 ) {\n\t\tfontName = `'${ fontName }'`;\n\t}\n\n\treturn fontName;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily/fontfamilyediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport FontFamilyCommand from './fontfamilycommand';\nimport { normalizeOptions } from './utils';\nimport { buildDefinition, FONT_FAMILY } from '../utils';\n\n/**\n * The font family editing feature.\n *\n * It introduces the {@link module:font/fontfamily/fontfamilycommand~FontFamilyCommand command} and\n * the `fontFamily` attribute in the {@link module:engine/model/model~Model model} which renders\n * in the {@link module:engine/view/view view} as an inline `<span>` element (`<span style=\"font-family: Arial\">`),\n * depending on the {@link module:font/fontfamily~FontFamilyConfig configuration}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontFamilyEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontFamilyEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t// Define default configuration using font families shortcuts.\n\t\teditor.config.define( FONT_FAMILY, {\n\t\t\toptions: [\n\t\t\t\t'default',\n\t\t\t\t'Arial, Helvetica, sans-serif',\n\t\t\t\t'Courier New, Courier, monospace',\n\t\t\t\t'Georgia, serif',\n\t\t\t\t'Lucida Sans Unicode, Lucida Grande, sans-serif',\n\t\t\t\t'Tahoma, Geneva, sans-serif',\n\t\t\t\t'Times New Roman, Times, serif',\n\t\t\t\t'Trebuchet MS, Helvetica, sans-serif',\n\t\t\t\t'Verdana, Geneva, sans-serif'\n\t\t\t],\n\t\t\tsupportAllValues: false\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Allow fontFamily attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_FAMILY } );\n\t\teditor.model.schema.setAttributeProperties( FONT_FAMILY, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Get configured font family options without \"default\" option.\n\t\tconst options = normalizeOptions( editor.config.get( 'fontFamily.options' ) ).filter( item => item.model );\n\t\tconst definition = buildDefinition( FONT_FAMILY, options );\n\n\t\t// Set-up the two-way conversion.\n\t\tif ( editor.config.get( 'fontFamily.supportAllValues' ) ) {\n\t\t\tthis._prepareAnyValueConverters();\n\t\t\tthis._prepareCompatibilityConverter();\n\t\t} else {\n\t\t\teditor.conversion.attributeToElement( definition );\n\t\t}\n\n\t\teditor.commands.add( FONT_FAMILY, new FontFamilyCommand( editor ) );\n\t}\n\n\t/**\n\t * These converters enable keeping any value found as `style=\"font-family: *\"` as a value of an attribute on a text even\n\t * if it is not defined in the plugin configuration.\n\t *\n\t * @private\n\t */\n\t_prepareAnyValueConverters() {\n\t\tconst editor = this.editor;\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_FAMILY,\n\t\t\tview: ( attributeValue, { writer } ) => {\n\t\t\t\treturn writer.createAttributeElement( 'span', { style: 'font-family:' + attributeValue }, { priority: 7 } );\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_FAMILY,\n\t\t\t\tvalue: viewElement => viewElement.getStyle( 'font-family' )\n\t\t\t},\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'font-family': /.*/\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Adds support for legacy `<font face=\"..\">` formatting.\n\t *\n\t * @private\n\t */\n\t_prepareCompatibilityConverter() {\n\t\tconst editor = this.editor;\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'font',\n\t\t\t\tattributes: {\n\t\t\t\t\t'face': /.*/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_FAMILY,\n\t\t\t\tvalue: viewElement => viewElement.getAttribute( 'face' )\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily/fontfamilyui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Collection } from 'ckeditor5/src/utils';\nimport { Model, createDropdown, addListToDropdown } from 'ckeditor5/src/ui';\n\nimport { normalizeOptions } from './utils';\nimport { FONT_FAMILY } from '../utils';\n\nimport fontFamilyIcon from '../../theme/icons/font-family.svg';\n\n/**\n * The font family UI plugin. It introduces the `'fontFamily'` dropdown.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontFamilyUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontFamilyUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst options = this._getLocalizedOptions();\n\n\t\tconst command = editor.commands.get( FONT_FAMILY );\n\n\t\t// Register UI component.\n\t\teditor.ui.componentFactory.add( FONT_FAMILY, locale => {\n\t\t\tconst dropdownView = createDropdown( locale );\n\t\t\taddListToDropdown( dropdownView, _prepareListOptions( options, command ) );\n\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tlabel: t( 'Font Family' ),\n\t\t\t\ticon: fontFamilyIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: 'ck-font-family-dropdown'\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\t\teditor.execute( evt.source.commandName, { value: evt.source.commandParam } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns options as defined in `config.fontFamily.options` but processed to account for\n\t * editor localization, i.e. to display {@link module:font/fontfamily~FontFamilyOption}\n\t * in the correct language.\n\t *\n\t * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n\t * when the user configuration is defined because the editor does not exist yet.\n\t *\n\t * @private\n\t * @returns {Array.<module:font/fontfamily~FontFamilyOption>}.\n\t */\n\t_getLocalizedOptions() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst options = normalizeOptions( editor.config.get( FONT_FAMILY ).options );\n\n\t\treturn options.map( option => {\n\t\t\t// The only title to localize is \"Default\" others are font names.\n\t\t\tif ( option.title === 'Default' ) {\n\t\t\t\toption.title = t( 'Default' );\n\t\t\t}\n\n\t\t\treturn option;\n\t\t} );\n\t}\n}\n\n// Prepares FontFamily dropdown items.\n// @private\n// @param {Array.<module:font/fontsize~FontSizeOption>} options\n// @param {module:font/fontsize/fontsizecommand~FontSizeCommand} command\nfunction _prepareListOptions( options, command ) {\n\tconst itemDefinitions = new Collection();\n\n\t// Create dropdown items.\n\tfor ( const option of options ) {\n\t\tconst def = {\n\t\t\ttype: 'button',\n\t\t\tmodel: new Model( {\n\t\t\t\tcommandName: FONT_FAMILY,\n\t\t\t\tcommandParam: option.model,\n\t\t\t\tlabel: option.title,\n\t\t\t\twithText: true\n\t\t\t} )\n\t\t};\n\n\t\tdef.model.bind( 'isOn' ).to( command, 'value', value => {\n\t\t\t// \"Default\" or check in strict font-family converters mode.\n\t\t\tif ( value === option.model ) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tif ( !value || !option.model ) {\n\t\t\t\treturn false;\n\t\t\t}\n\n\t\t\treturn value.split( ',' )[ 0 ].replace( /'/g, '' ).toLowerCase() === option.model.toLowerCase();\n\t\t} );\n\n\t\t// Try to set a dropdown list item style.\n\t\tif ( option.view && option.view.styles ) {\n\t\t\tdef.model.set( 'labelStyle', `font-family: ${ option.view.styles[ 'font-family' ] }` );\n\t\t}\n\n\t\titemDefinitions.add( def );\n\t}\n\treturn itemDefinitions;\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M11.03 3h6.149a.75.75 0 1 1 0 1.5h-5.514L11.03 3zm1.27 3h4.879a.75.75 0 1 1 0 1.5h-4.244L12.3 6zm1.27 3h3.609a.75.75 0 1 1 0 1.5h-2.973L13.57 9zm-2.754 2.5L8.038 4.785 5.261 11.5h5.555zm.62 1.5H4.641l-1.666 4.028H1.312l5.789-14h1.875l5.789 14h-1.663L11.436 13z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontFamilyEditing from './fontfamily/fontfamilyediting';\nimport FontFamilyUI from './fontfamily/fontfamilyui';\n\n/**\n * The font family plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentatiom\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:font/fontfamily/fontfamilyediting~FontFamilyEditing} and\n * {@link module:font/fontfamily/fontfamilyui~FontFamilyUI} features in the editor.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontFamily extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FontFamilyEditing, FontFamilyUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontFamily';\n\t}\n}\n\n/**\n * The font family option descriptor.\n *\n * @typedef {Object} module:font/fontfamily~FontFamilyOption\n *\n * @property {String} title The user-readable title of the option.\n * @property {String} model The attribute's unique value in the model.\n * @property {module:engine/view/elementdefinition~ElementDefinition} view View element configuration.\n * @property {Array.<module:engine/view/elementdefinition~ElementDefinition>} [upcastAlso] An array with all matched elements that\n * the view-to-model conversion should also accept.\n */\n\n/**\n * The configuration of the font family feature.\n * It is introduced by the {@link module:font/fontfamily/fontfamilyediting~FontFamilyEditing} feature.\n *\n * Read more in {@link module:font/fontfamily~FontFamilyConfig}.\n *\n * @member {module:font/fontfamily~FontFamilyConfig} module:core/editor/editorconfig~EditorConfig#fontFamily\n */\n\n/**\n * The configuration of the font family feature.\n * This option is used by the {@link module:font/fontfamily/fontfamilyediting~FontFamilyEditing} feature.\n *\n *\t\tClassicEditor\n *\t\t\t.create( {\n * \t\t\t\tfontFamily: ... // Font family feature configuration.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface module:font/fontfamily~FontFamilyConfig\n */\n\n/**\n * Available font family options defined as an array of strings. The default value is:\n *\n *\t\tconst fontFamilyConfig = {\n *\t\t\toptions: [\n *\t\t\t\t'default',\n *\t\t\t\t'Arial, Helvetica, sans-serif',\n *\t\t\t\t'Courier New, Courier, monospace',\n *\t\t\t\t'Georgia, serif',\n *\t\t\t\t'Lucida Sans Unicode, Lucida Grande, sans-serif',\n *\t\t\t\t'Tahoma, Geneva, sans-serif',\n *\t\t\t\t'Times New Roman, Times, serif',\n *\t\t\t\t'Trebuchet MS, Helvetica, sans-serif',\n *\t\t\t\t'Verdana, Geneva, sans-serif'\n *\t\t\t]\n *\t\t};\n *\n * which configures 8 font family options. Each option consists of one or more comma–separated font family names. The first font name is\n * used as the dropdown item description in the UI.\n *\n * **Note:** The family names that consist of spaces should not have quotes (as opposed to the CSS standard). The necessary quotes\n * will be added automatically in the view. For example, the `\"Lucida Sans Unicode\"` will render as follows:\n *\n * \t\t<span style=\"font-family:'Lucida Sans Unicode', 'Lucida Grande', sans-serif\">...</span>\n *\n * The \"default\" option removes the `fontFamily` attribute from the selection. In such case, the text will\n * be rendered in the view using the default font family defined in the styles of the web page.\n *\n * Font family can be applied using the command API. To do that, use the `fontFamily` command and pass the desired family as a `value`.\n * For example, the following code will apply the `fontFamily` attribute with the `'Arial'` `value` to the current selection:\n *\n *\t\teditor.execute( 'fontFamily', { value: 'Arial' } );\n *\n * Executing the `'fontFamily'` command without any value will remove the `fontFamily` attribute from the current selection.\n *\n * @member {Array.<String|module:font/fontfamily~FontFamilyOption>} module:font/fontfamily~FontFamilyConfig#options\n */\n\n/**\n * By default the plugin removes any `font-family` value that does not match the plugin's configuration. It means that if you paste content\n * with font families that the editor does not understand, the `font-family` attribute will be removed and the content will be displayed\n * with the default font.\n *\n * You can preserve pasted font family values by switching the `supportAllValues` option to `true`:\n *\n *\t\tconst fontFamilyConfig = {\n *\t\t\tsupportAllValues: true\n *\t\t};\n *\n * With this configuration font families not specified in the editor configuration will not be removed when pasting the content.\n *\n * @member {Boolean} module:font/fontfamily~FontFamilyConfig#supportAllValues\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/fontsizecommand\n */\n\nimport FontCommand from '../fontcommand';\nimport { FONT_SIZE } from '../utils';\n\n/**\n * The font size command. It is used by {@link module:font/fontsize/fontsizeediting~FontSizeEditing}\n * to apply the font size.\n *\n *\t\teditor.execute( 'fontSize', { value: 'small' } );\n *\n * **Note**: Executing the command without the value removes the attribute from the model.\n *\n * @extends module:font/fontcommand~FontCommand\n */\nexport default class FontSizeCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor, FONT_SIZE );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/utils\n */\n\nimport { CKEditorError } from 'ckeditor5/src/utils';\n\n/**\n * Normalizes and translates the {@link module:font/fontsize~FontSizeConfig#options configuration options}\n * to the {@link module:font/fontsize~FontSizeOption} format.\n *\n * @param {Array.<String|Number|Object>} configuredOptions An array of options taken from the configuration.\n * @returns {Array.<module:font/fontsize~FontSizeOption>}\n */\nexport function normalizeOptions( configuredOptions ) {\n\t// Convert options to objects.\n\treturn configuredOptions\n\t\t.map( item => getOptionDefinition( item ) )\n\t\t// Filter out undefined values that `getOptionDefinition` might return.\n\t\t.filter( option => !!option );\n}\n\n// Default named presets map. Always create a new instance of the preset object in order to avoid modifying references.\nconst namedPresets = {\n\tget tiny() {\n\t\treturn {\n\t\t\ttitle: 'Tiny',\n\t\t\tmodel: 'tiny',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-tiny',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t},\n\tget small() {\n\t\treturn {\n\t\t\ttitle: 'Small',\n\t\t\tmodel: 'small',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-small',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t},\n\tget big() {\n\t\treturn {\n\t\t\ttitle: 'Big',\n\t\t\tmodel: 'big',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-big',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t},\n\tget huge() {\n\t\treturn {\n\t\t\ttitle: 'Huge',\n\t\t\tmodel: 'huge',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-huge',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t}\n};\n\n// Returns an option definition either from preset or creates one from number shortcut.\n// If object is passed then this method will return it without alternating it. Returns undefined for item than cannot be parsed.\n//\n// @param {String|Number|Object} item\n// @returns {undefined|module:font/fontsize~FontSizeOption}\nfunction getOptionDefinition( option ) {\n\t// Check whether passed option is a full item definition provided by user in configuration.\n\tif ( isFullItemDefinition( option ) ) {\n\t\treturn attachPriority( option );\n\t}\n\n\tconst preset = findPreset( option );\n\n\t// Item is a named preset.\n\tif ( preset ) {\n\t\treturn attachPriority( preset );\n\t}\n\n\t// 'Default' font size. It will be used to remove the fontSize attribute.\n\tif ( option === 'default' ) {\n\t\treturn {\n\t\t\tmodel: undefined,\n\t\t\ttitle: 'Default'\n\t\t};\n\t}\n\n\t// At this stage we probably have numerical value to generate a preset so parse it's value.\n\t// Discard any faulty values.\n\tif ( isNumericalDefinition( option ) ) {\n\t\treturn;\n\t}\n\n\t// Return font size definition from size value.\n\treturn generatePixelPreset( option );\n}\n\n// Creates a predefined preset for pixel size.\n//\n// @param {Number} definition Font size in pixels.\n// @returns {module:font/fontsize~FontSizeOption}\nfunction generatePixelPreset( definition ) {\n\t// Extend a short (numeric value) definition.\n\tif ( typeof definition === 'number' || typeof definition === 'string' ) {\n\t\tdefinition = {\n\t\t\ttitle: String( definition ),\n\t\t\tmodel: `${ parseFloat( definition ) }px`\n\t\t};\n\t}\n\n\tdefinition.view = {\n\t\tname: 'span',\n\t\tstyles: {\n\t\t\t'font-size': definition.model\n\t\t}\n\t};\n\n\treturn attachPriority( definition );\n}\n\n// Adds the priority to the view element definition if missing. It's required due to ckeditor/ckeditor5#2291\n//\n// @param {Object} definition\n// @param {Object} definition.title\n// @param {Object} definition.model\n// @param {Object} definition.view\n// @returns {Object}\nfunction attachPriority( definition ) {\n\tif ( !definition.view.priority ) {\n\t\tdefinition.view.priority = 7;\n\t}\n\n\treturn definition;\n}\n\n// Returns a prepared preset definition. If passed an object, a name of preset should be defined as `model` value.\n//\n// @param {String|Object} definition\n// @param {String} definition.model A preset name.\n// @returns {Object|undefined}\nfunction findPreset( definition ) {\n\treturn namedPresets[ definition ] || namedPresets[ definition.model ];\n}\n\n// We treat `definition` as completed if it is an object that contains `title`, `model` and `view` values.\n//\n// @param {Object} definition\n// @param {String} definition.title\n// @param {String} definition.model\n// @param {Object} definition.view\n// @returns {Boolean}\nfunction isFullItemDefinition( definition ) {\n\treturn typeof definition === 'object' && definition.title && definition.model && definition.view;\n}\n\n// We treat `definition` as numerical if it is a number, number-like (string) or an object with the `title` key.\n//\n// @param {Object|Number|String} definition\n// @param {Object} definition.title\n// @returns {Boolean}\nfunction isNumericalDefinition( definition ) {\n\tlet numberValue;\n\n\tif ( typeof definition === 'object' ) {\n\t\tif ( !definition.model ) {\n\t\t\t/**\n\t\t\t * Provided value as an option for {@link module:font/fontsize~FontSize} seems to invalid.\n\t\t\t *\n\t\t\t * See valid examples described in the {@link module:font/fontsize~FontSizeConfig#options plugin configuration}.\n\t\t\t *\n\t\t\t * @error font-size-invalid-definition\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'font-size-invalid-definition', null, definition );\n\t\t} else {\n\t\t\tnumberValue = parseFloat( definition.model );\n\t\t}\n\t} else {\n\t\tnumberValue = parseFloat( definition );\n\t}\n\n\treturn isNaN( numberValue );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/fontsizeediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { CKEditorError } from 'ckeditor5/src/utils';\nimport { isLength, isPercentage } from 'ckeditor5/src/engine';\n\nimport FontSizeCommand from './fontsizecommand';\nimport { normalizeOptions } from './utils';\nimport { buildDefinition, FONT_SIZE } from '../utils';\n\n// Mapping of `<font size=\"..\">` styling to CSS's `font-size` values.\nconst styleFontSize = [\n\t'x-small', // Size \"0\" equal to \"1\".\n\t'x-small',\n\t'small',\n\t'medium',\n\t'large',\n\t'x-large',\n\t'xx-large',\n\t'xxx-large'\n];\n\n/**\n * The font size editing feature.\n *\n * It introduces the {@link module:font/fontsize/fontsizecommand~FontSizeCommand command} and the `fontSize`\n * attribute in the {@link module:engine/model/model~Model model} which renders in the {@link module:engine/view/view view}\n * as a `<span>` element with either:\n * * a style attribute (`<span style=\"font-size:12px\">...</span>`),\n * * or a class attribute (`<span class=\"text-small\">...</span>`)\n *\n * depending on the {@link module:font/fontsize~FontSizeConfig configuration}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontSizeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontSizeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t// Define default configuration using named presets.\n\t\teditor.config.define( FONT_SIZE, {\n\t\t\toptions: [\n\t\t\t\t'tiny',\n\t\t\t\t'small',\n\t\t\t\t'default',\n\t\t\t\t'big',\n\t\t\t\t'huge'\n\t\t\t],\n\t\t\tsupportAllValues: false\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\t// Allow fontSize attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_SIZE } );\n\t\teditor.model.schema.setAttributeProperties( FONT_SIZE, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\tconst supportAllValues = editor.config.get( 'fontSize.supportAllValues' );\n\n\t\t// Define view to model conversion.\n\t\tconst options = normalizeOptions( this.editor.config.get( 'fontSize.options' ) )\n\t\t\t.filter( item => item.model );\n\t\tconst definition = buildDefinition( FONT_SIZE, options );\n\n\t\t// Set-up the two-way conversion.\n\t\tif ( supportAllValues ) {\n\t\t\tthis._prepareAnyValueConverters( definition );\n\t\t\tthis._prepareCompatibilityConverter();\n\t\t} else {\n\t\t\teditor.conversion.attributeToElement( definition );\n\t\t}\n\n\t\t// Add FontSize command.\n\t\teditor.commands.add( FONT_SIZE, new FontSizeCommand( editor ) );\n\t}\n\n\t/**\n\t * These converters enable keeping any value found as `style=\"font-size: *\"` as a value of an attribute on a text even\n\t * if it is not defined in the plugin configuration.\n\t *\n\t * @param {Object} definition {@link module:engine/conversion/conversion~ConverterDefinition Converter definition} out of input data.\n\t * @private\n\t */\n\t_prepareAnyValueConverters( definition ) {\n\t\tconst editor = this.editor;\n\n\t\t// If `fontSize.supportAllValues=true`, we do not allow to use named presets in the plugin's configuration.\n\t\tconst presets = definition.model.values.filter( value => {\n\t\t\treturn !isLength( String( value ) ) && !isPercentage( String( value ) );\n\t\t} );\n\n\t\tif ( presets.length ) {\n\t\t\t/**\n\t\t\t * If {@link module:font/fontsize~FontSizeConfig#supportAllValues `config.fontSize.supportAllValues`} is `true`,\n\t\t\t * you need to use numerical values as font size options.\n\t\t\t *\n\t\t\t * See valid examples described in the {@link module:font/fontsize~FontSizeConfig#options plugin configuration}.\n\t\t\t *\n\t\t\t * @error font-size-invalid-use-of-named-presets\n\t\t\t * @param {Array.<String>} presets Invalid values.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'font-size-invalid-use-of-named-presets',\n\t\t\t\tnull, { presets }\n\t\t\t);\n\t\t}\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_SIZE,\n\t\t\tview: ( attributeValue, { writer } ) => {\n\t\t\t\tif ( !attributeValue ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createAttributeElement( 'span', { style: 'font-size:' + attributeValue }, { priority: 7 } );\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_SIZE,\n\t\t\t\tvalue: viewElement => viewElement.getStyle( 'font-size' )\n\t\t\t},\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'font-size': /.*/\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Adds support for legacy `<font size=\"..\">` formatting.\n\t *\n\t * @private\n\t */\n\t_prepareCompatibilityConverter() {\n\t\tconst editor = this.editor;\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'font',\n\t\t\t\tattributes: {\n\t\t\t\t\t// Documentation mentions sizes from 1 to 7. To handle old content we support all values\n\t\t\t\t\t// up to 999 but clamp it to the valid range. Why 999? It should cover accidental values\n\t\t\t\t\t// similar to percentage, e.g. 100%, 200% which could be the usual mistake for font size.\n\t\t\t\t\t'size': /^[+-]?\\d{1,3}$/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_SIZE,\n\t\t\t\tvalue: viewElement => {\n\t\t\t\t\tconst value = viewElement.getAttribute( 'size' );\n\t\t\t\t\tconst isRelative = value[ 0 ] === '-' || value[ 0 ] === '+';\n\n\t\t\t\t\tlet size = parseInt( value, 10 );\n\n\t\t\t\t\tif ( isRelative ) {\n\t\t\t\t\t\t// Add relative size (which can be negative) to the default size = 3.\n\t\t\t\t\t\tsize = 3 + size;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst maxSize = styleFontSize.length - 1;\n\t\t\t\t\tconst clampedSize = Math.min( Math.max( size, 0 ), maxSize );\n\n\t\t\t\t\treturn styleFontSize[ clampedSize ];\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./fontsize.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/fontsizeui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Model, createDropdown, addListToDropdown } from 'ckeditor5/src/ui';\nimport { Collection } from 'ckeditor5/src/utils';\n\nimport { normalizeOptions } from './utils';\nimport { FONT_SIZE } from '../utils';\n\nimport fontSizeIcon from '../../theme/icons/font-size.svg';\nimport '../../theme/fontsize.css';\n\n/**\n * The font size UI plugin. It introduces the `'fontSize'` dropdown.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontSizeUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontSizeUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst options = this._getLocalizedOptions();\n\n\t\tconst command = editor.commands.get( FONT_SIZE );\n\n\t\t// Register UI component.\n\t\teditor.ui.componentFactory.add( FONT_SIZE, locale => {\n\t\t\tconst dropdownView = createDropdown( locale );\n\t\t\taddListToDropdown( dropdownView, _prepareListOptions( options, command ) );\n\n\t\t\t// Create dropdown model.\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tlabel: t( 'Font Size' ),\n\t\t\t\ticon: fontSizeIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck-font-size-dropdown'\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\t\teditor.execute( evt.source.commandName, { value: evt.source.commandParam } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns options as defined in `config.fontSize.options` but processed to account for\n\t * editor localization, i.e. to display {@link module:font/fontsize~FontSizeOption}\n\t * in the correct language.\n\t *\n\t * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n\t * when the user configuration is defined because the editor does not exist yet.\n\t *\n\t * @private\n\t * @returns {Array.<module:font/fontsize~FontSizeOption>}.\n\t */\n\t_getLocalizedOptions() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst localizedTitles = {\n\t\t\tDefault: t( 'Default' ),\n\t\t\tTiny: t( 'Tiny' ),\n\t\t\tSmall: t( 'Small' ),\n\t\t\tBig: t( 'Big' ),\n\t\t\tHuge: t( 'Huge' )\n\t\t};\n\n\t\tconst options = normalizeOptions( editor.config.get( FONT_SIZE ).options );\n\n\t\treturn options.map( option => {\n\t\t\tconst title = localizedTitles[ option.title ];\n\n\t\t\tif ( title && title != option.title ) {\n\t\t\t\t// Clone the option to avoid altering the original `namedPresets` from `./utils.js`.\n\t\t\t\toption = Object.assign( {}, option, { title } );\n\t\t\t}\n\n\t\t\treturn option;\n\t\t} );\n\t}\n}\n\n// Prepares FontSize dropdown items.\n// @private\n// @param {Array.<module:font/fontsize~FontSizeOption>} options\n// @param {module:font/fontsize/fontsizecommand~FontSizeCommand} command\nfunction _prepareListOptions( options, command ) {\n\tconst itemDefinitions = new Collection();\n\n\tfor ( const option of options ) {\n\t\tconst def = {\n\t\t\ttype: 'button',\n\t\t\tmodel: new Model( {\n\t\t\t\tcommandName: FONT_SIZE,\n\t\t\t\tcommandParam: option.model,\n\t\t\t\tlabel: option.title,\n\t\t\t\tclass: 'ck-fontsize-option',\n\t\t\t\twithText: true\n\t\t\t} )\n\t\t};\n\n\t\tif ( option.view && option.view.styles ) {\n\t\t\tdef.model.set( 'labelStyle', `font-size:${ option.view.styles[ 'font-size' ] }` );\n\t\t}\n\n\t\tif ( option.view && option.view.classes ) {\n\t\t\tdef.model.set( 'class', `${ def.model.class } ${ option.view.classes }` );\n\t\t}\n\n\t\tdef.model.bind( 'isOn' ).to( command, 'value', value => value === option.model );\n\n\t\t// Add the option to the collection.\n\t\titemDefinitions.add( def );\n\t}\n\n\treturn itemDefinitions;\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M9.816 11.5 7.038 4.785 4.261 11.5h5.555zm.62 1.5H3.641l-1.666 4.028H.312l5.789-14h1.875l5.789 14h-1.663L10.436 13zm7.55 2.279.779-.779.707.707-2.265 2.265-2.193-2.265.707-.707.765.765V4.825c0-.042 0-.083.002-.123l-.77.77-.707-.707L17.207 2.5l2.265 2.265-.707.707-.782-.782c.002.043.003.089.003.135v10.454z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontSizeEditing from './fontsize/fontsizeediting';\nimport FontSizeUI from './fontsize/fontsizeui';\nimport { normalizeOptions } from './fontsize/utils';\n\n/**\n * The font size plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentation\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:font/fontsize/fontsizeediting~FontSizeEditing} and\n * {@link module:font/fontsize/fontsizeui~FontSizeUI} features in the editor.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontSize extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FontSizeEditing, FontSizeUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontSize';\n\t}\n\n\t/**\n\t * Normalizes and translates the {@link module:font/fontsize~FontSizeConfig#options configuration options}\n\t * to the {@link module:font/fontsize~FontSizeOption} format.\n\t *\n\t * @param {Array.<String|Number|Object>} configuredOptions An array of options taken from the configuration.\n\t * @returns {Array.<module:font/fontsize~FontSizeOption>}\n\t */\n\tnormalizeSizeOptions( options ) {\n\t\treturn normalizeOptions( options );\n\t}\n}\n\n/**\n * The font size option descriptor.\n *\n * @typedef {Object} module:font/fontsize~FontSizeOption\n *\n * @property {String} title The user-readable title of the option.\n * @property {String} model The attribute's unique value in the model.\n * @property {module:engine/view/elementdefinition~ElementDefinition} view View element configuration.\n * @property {Array.<module:engine/view/elementdefinition~ElementDefinition>} [upcastAlso] An array with all matched elements that\n * the view-to-model conversion should also accept.\n */\n\n/**\n * The configuration of the font size feature.\n * It is introduced by the {@link module:font/fontsize/fontsizeediting~FontSizeEditing} feature.\n *\n * Read more in {@link module:font/fontsize~FontSizeConfig}.\n *\n * @member {module:font/fontsize~FontSizeConfig} module:core/editor/editorconfig~EditorConfig#fontSize\n */\n\n/**\n * The configuration of the font size feature.\n * This option is used by the {@link module:font/fontsize/fontsizeediting~FontSizeEditing} feature.\n *\n * \t\tClassicEditor\n * \t\t\t.create( {\n * \t\t\t\tfontSize: ... // Font size feature configuration.\n *\t\t\t} )\n * \t\t\t.then( ... )\n * \t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface module:font/fontsize~FontSizeConfig\n */\n\n/**\n * Available font size options. Expressed as predefined presets, numerical \"pixel\" values\n * or the {@link module:font/fontsize~FontSizeOption}.\n *\n * The default value is:\n *\n *\t\tconst fontSizeConfig = {\n *\t\t\toptions: [\n *\t\t\t\t'tiny',\n * \t\t\t\t'small',\n * \t\t\t\t'default',\n * \t\t\t\t'big',\n * \t\t\t\t'huge'\n *\t\t\t]\n *\t\t};\n *\n * It defines 4 sizes: **tiny**, **small**, **big**, and **huge**. These values will be rendered as `<span>` elements in the view.\n * The **default** defines a text without the `fontSize` attribute.\n *\n * Each `<span>` has the the `class` attribute set to the corresponding size name. For instance, this is what the **small** size looks\n * like in the view:\n *\n * \t\t<span class=\"text-small\">...</span>\n *\n * As an alternative, the font size might be defined using numerical values (either as a `Number` or as a `String`):\n *\n * \t\tconst fontSizeConfig = {\n * \t\t\toptions: [ 9, 10, 11, 12, 13, 14, 15 ]\n * \t\t};\n *\n * Also, you can define a label in the dropdown for numerical values:\n *\n *\t\tconst fontSizeConfig = {\n *\t\t\toptions: [\n *\t\t\t\t{\n * \t\t\t\t \ttitle: 'Small',\n * \t\t\t\t \tmodel: '8px'\n * \t\t\t\t},\n * \t\t\t\t'default',\n * \t\t\t\t{\n * \t\t\t\t \ttitle: 'Big',\n * \t\t\t\t \tmodel: '14px'\n * \t\t\t\t}\n *\t\t\t]\n *\t\t};\n *\n * Font size can be applied using the command API. To do that, use the `'fontSize'` command and pass the desired font size as a `value`.\n * For example, the following code will apply the `fontSize` attribute with the **tiny** value to the current selection:\n *\n *\t\teditor.execute( 'fontSize', { value: 'tiny' } );\n *\n * Executing the `fontSize` command without value will remove the `fontSize` attribute from the current selection.\n *\n * @member {Array.<String|Number|module:font/fontsize~FontSizeOption>} module:font/fontsize~FontSizeConfig#options\n */\n\n/**\n * By default the plugin removes any `font-size` value that does not match the plugin's configuration. It means that if you paste content\n * with font sizes that the editor does not understand, the `font-size` attribute will be removed and the content will be displayed\n * with the default size.\n *\n * You can preserve pasted font size values by switching the `supportAllValues` option to `true`:\n *\n *\t\tconst fontSizeConfig = {\n *\t\t\toptions: [ 9, 10, 11, 12, 'default', 14, 15 ],\n *\t\t\tsupportAllValues: true\n *\t\t};\n *\n * **Note:** This option can only be used with numerical values as font size options.\n *\n * With this configuration font sizes not specified in the editor configuration will not be removed when pasting the content.\n *\n * @member {Boolean} module:font/fontsize~FontSizeConfig#supportAllValues\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor/fontcolorcommand\n */\n\nimport FontCommand from '../fontcommand';\nimport { FONT_COLOR } from '../utils';\n\n/**\n * The font color command. It is used by {@link module:font/fontcolor/fontcolorediting~FontColorEditing}\n * to apply the font color.\n *\n *\t\teditor.execute( 'fontColor', { value: 'rgb(250, 20, 20)' } );\n *\n * **Note**: Executing the command with the `null` value removes the attribute from the model.\n *\n * @extends module:font/fontcommand~FontCommand\n */\nexport default class FontColorCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor, FONT_COLOR );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor/fontcolorediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontColorCommand from './fontcolorcommand';\nimport { FONT_COLOR, renderDowncastElement, renderUpcastAttribute } from '../utils';\n\n/**\n * The font color editing feature.\n *\n * It introduces the {@link module:font/fontcolor/fontcolorcommand~FontColorCommand command} and\n * the `fontColor` attribute in the {@link module:engine/model/model~Model model} which renders\n * in the {@link module:engine/view/view view} as a `<span>` element (`<span style=\"color: ...\">`),\n * depending on the {@link module:font/fontcolor~FontColorConfig configuration}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontColorEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontColorEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( FONT_COLOR, {\n\t\t\tcolors: [\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 0%)',\n\t\t\t\t\tlabel: 'Black'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 30%)',\n\t\t\t\t\tlabel: 'Dim grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n\t\t\t\t\tlabel: 'Grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n\t\t\t\t\tlabel: 'Light grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n\t\t\t\t\tlabel: 'White',\n\t\t\t\t\thasBorder: true\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 75%, 60%)',\n\t\t\t\t\tlabel: 'Red'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(30, 75%, 60%)',\n\t\t\t\t\tlabel: 'Orange'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(60, 75%, 60%)',\n\t\t\t\t\tlabel: 'Yellow'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(90, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n\t\t\t\t\tlabel: 'Green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(150, 75%, 60%)',\n\t\t\t\t\tlabel: 'Aquamarine'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(180, 75%, 60%)',\n\t\t\t\t\tlabel: 'Turquoise'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(210, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(240, 75%, 60%)',\n\t\t\t\t\tlabel: 'Blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(270, 75%, 60%)',\n\t\t\t\t\tlabel: 'Purple'\n\t\t\t\t}\n\t\t\t],\n\t\t\tcolumns: 5\n\t\t} );\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'color': /[\\s\\S]+/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_COLOR,\n\t\t\t\tvalue: renderUpcastAttribute( 'color' )\n\t\t\t}\n\t\t} );\n\n\t\t// Support legacy `<font color=\"..\">` formatting.\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'font',\n\t\t\t\tattributes: {\n\t\t\t\t\t'color': /^#?\\w+$/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_COLOR,\n\t\t\t\tvalue: viewElement => viewElement.getAttribute( 'color' )\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_COLOR,\n\t\t\tview: renderDowncastElement( 'color' )\n\t\t} );\n\n\t\teditor.commands.add( FONT_COLOR, new FontColorCommand( editor ) );\n\n\t\t// Allow the font color attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_COLOR } );\n\n\t\teditor.model.schema.setAttributeProperties( FONT_COLOR, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/ui/colorui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { createDropdown, normalizeColorOptions, getLocalizedColorOptions, focusChildOnDropdownOpen } from 'ckeditor5/src/ui';\n\nimport { addColorTableToDropdown } from '../utils';\n\n/**\n * The color UI plugin which isolates the common logic responsible for displaying dropdowns with color grids.\n *\n * It is used to create the `'fontBackgroundColor'` and `'fontColor'` dropdowns, each hosting\n * a {@link module:font/ui/colortableview~ColorTableView}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ColorUI extends Plugin {\n\t/**\n\t * Creates a plugin which introduces a dropdown with a pre–configured {@link module:font/ui/colortableview~ColorTableView}.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor\n\t * @param {Object} config The configuration object.\n\t * @param {String} config.commandName The name of the command which will be executed when a color tile is clicked.\n\t * @param {String} config.componentName The name of the dropdown in the {@link module:ui/componentfactory~ComponentFactory}\n\t * and the configuration scope name in `editor.config`.\n\t * @param {String} config.icon The SVG icon used by the dropdown.\n\t * @param {String} config.dropdownLabel The label used by the dropdown.\n\t */\n\tconstructor( editor, { commandName, icon, componentName, dropdownLabel } ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The name of the command which will be executed when a color tile is clicked.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.commandName = commandName;\n\n\t\t/**\n\t\t * The name of this component in the {@link module:ui/componentfactory~ComponentFactory}.\n\t\t * Also the configuration scope name in `editor.config`.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.componentName = componentName;\n\n\t\t/**\n\t\t * The SVG icon used by the dropdown.\n\t\t * @type {String}\n\t\t */\n\t\tthis.icon = icon;\n\n\t\t/**\n\t\t * The label used by the dropdown.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.dropdownLabel = dropdownLabel;\n\n\t\t/**\n\t\t * The number of columns in the color grid.\n\t\t *\n\t\t * @type {Number}\n\t\t */\n\t\tthis.columns = editor.config.get( `${ this.componentName }.columns` );\n\n\t\t/**\n\t\t * Keeps a reference to {@link module:font/ui/colortableview~ColorTableView}.\n\t\t *\n\t\t * @member {module:font/ui/colortableview~ColorTableView}\n\t\t */\n\t\tthis.colorTableView = undefined;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst locale = editor.locale;\n\t\tconst t = locale.t;\n\t\tconst command = editor.commands.get( this.commandName );\n\t\tconst colorsConfig = normalizeColorOptions( editor.config.get( this.componentName ).colors );\n\t\tconst localizedColors = getLocalizedColorOptions( locale, colorsConfig );\n\t\tconst documentColorsCount = editor.config.get( `${ this.componentName }.documentColors` );\n\n\t\t// Register the UI component.\n\t\teditor.ui.componentFactory.add( this.componentName, locale => {\n\t\t\tconst dropdownView = createDropdown( locale );\n\t\t\tthis.colorTableView = addColorTableToDropdown( {\n\t\t\t\tdropdownView,\n\t\t\t\tcolors: localizedColors.map( option => ( {\n\t\t\t\t\tlabel: option.label,\n\t\t\t\t\tcolor: option.model,\n\t\t\t\t\toptions: {\n\t\t\t\t\t\thasBorder: option.hasBorder\n\t\t\t\t\t}\n\t\t\t\t} ) ),\n\t\t\t\tcolumns: this.columns,\n\t\t\t\tremoveButtonLabel: t( 'Remove color' ),\n\t\t\t\tdocumentColorsLabel: documentColorsCount !== 0 ? t( 'Document colors' ) : undefined,\n\t\t\t\tdocumentColorsCount: documentColorsCount === undefined ? this.columns : documentColorsCount\n\t\t\t} );\n\n\t\t\tthis.colorTableView.bind( 'selectedColor' ).to( command, 'value' );\n\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tlabel: this.dropdownLabel,\n\t\t\t\ticon: this.icon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: 'ck-color-ui-dropdown'\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\tdropdownView.on( 'execute', ( evt, data ) => {\n\t\t\t\teditor.execute( this.commandName, data );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\tdropdownView.on( 'change:isOpen', ( evt, name, isVisible ) => {\n\t\t\t\t// Grids rendering is deferred (#6192).\n\t\t\t\tdropdownView.colorTableView.appendGrids();\n\n\t\t\t\tif ( isVisible ) {\n\t\t\t\t\tif ( documentColorsCount !== 0 ) {\n\t\t\t\t\t\tthis.colorTableView.updateDocumentColors( editor.model, this.componentName );\n\t\t\t\t\t}\n\t\t\t\t\tthis.colorTableView.updateSelectedColors();\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\t// Accessibility: focus the first active color when opening the dropdown.\n\t\t\tfocusChildOnDropdownOpen( dropdownView, () => dropdownView.colorTableView.staticColorsGrid.items.find( item => item.isOn ) );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor/fontcolorui\n */\n\nimport ColorUI from '../ui/colorui';\nimport { FONT_COLOR } from '../utils';\nimport fontColorIcon from '../../theme/icons/font-color.svg';\n\n/**\n * The font color UI plugin. It introduces the `'fontColor'` dropdown.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontColorUI extends ColorUI {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tconst t = editor.locale.t;\n\n\t\tsuper( editor, {\n\t\t\tcommandName: FONT_COLOR,\n\t\t\tcomponentName: FONT_COLOR,\n\t\t\ticon: fontColorIcon,\n\t\t\tdropdownLabel: t( 'Font Color' )\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontColorUI';\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M12.4 10.3 10 4.5l-2.4 5.8h4.8zm.5 1.2H7.1L5.7 15H4.2l5-12h1.6l5 12h-1.5L13 11.5zm3.1 7H4a1 1 0 0 1 0-2h12a1 1 0 0 1 0 2z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontColorEditing from './fontcolor/fontcolorediting';\nimport FontColorUI from './fontcolor/fontcolorui';\n\n/**\n * The font color plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentation\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:font/fontcolor/fontcolorediting~FontColorEditing} and\n * {@link module:font/fontcolor/fontcolorui~FontColorUI} features in the editor.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontColor extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FontColorEditing, FontColorUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontColor';\n\t}\n}\n\n/**\n * The configuration of the font color feature.\n * It is introduced by the {@link module:font/fontcolor/fontcolorediting~FontColorEditing} feature.\n *\n * Read more in {@link module:font/fontcolor~FontColorConfig}.\n *\n * @member {module:font/fontcolor~FontColorConfig} module:core/editor/editorconfig~EditorConfig#fontColor\n */\n\n/**\n * The configuration of the font color feature.\n * This option is used by the {@link module:font/fontcolor/fontcolorediting~FontColorEditing} feature.\n *\n *\t\tClassicEditor\n *\t\t\t.create( {\n *\t\t\t\tfontColor: ... // Font color feature configuration.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface module:font/fontcolor~FontColorConfig\n */\n\n/**\n * Available font colors defined as an array of strings or objects.\n *\n * The default value registers the following colors:\n *\n *\t\tconst fontColorConfig = {\n *\t\t\tcolors: [\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 0%)',\n *\t\t\t\t\tlabel: 'Black'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 30%)',\n *\t\t\t\t\tlabel: 'Dim grey'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n *\t\t\t\t\tlabel: 'Grey'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n *\t\t\t\t\tlabel: 'Light grey'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n *\t\t\t\t\tlabel: 'White',\n *\t\t\t\t\thasBorder: true\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Red'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(30, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Orange'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(60, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Yellow'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(90, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Light green'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Green'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(150, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Aquamarine'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(180, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Turquoise'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(210, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Light blue'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(240, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Blue'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(270, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Purple'\n *\t\t\t\t}\n *\t\t\t]\n *\t\t};\n *\n * **Note**: The colors are displayed in the `'fontColor'` dropdown.\n *\n * @member {Array.<String|Object>} module:font/fontcolor~FontColorConfig#colors\n */\n\n/**\n * Represents the number of columns in the font color dropdown.\n *\n * The default value is:\n *\n *\t\tconst fontColorConfig = {\n *\t\t\tcolumns: 5\n *\t\t}\n *\n * @member {Number} module:font/fontcolor~FontColorConfig#columns\n */\n\n/**\n * Determines the maximum number of available document colors.\n * Setting it to `0` will disable the document colors feature.\n *\n * By default it equals to the {@link module:font/fontcolor~FontColorConfig#columns} value.\n *\n * Examples:\n *\n * \t// 1) Neither document colors nor columns are defined in the configuration.\n * \t// Document colors will equal 5,\n * \t// because the value will be inherited from columns,\n * \t// which has a predefined value of 5.\n * \tconst fontColorConfig = {}\n *\n * \t// 2) Document colors will equal 8, because the value will be inherited from columns.\n * \tconst fontColorConfig = {\n * \t\tcolumns: 8\n * \t}\n *\n * \t// 3) Document colors will equal 24, because it has its own value defined.\n * \tconst fontColorConfig = {\n * \t\tcolumns: 8,\n * \t\tdocumentColors: 24\n * \t}\n *\n * \t// 4) The document colors feature will be disabled.\n * \tconst fontColorConfig = {\n * \t\tcolumns: 8,\n * \t\tdocumentColors: 0\n * \t}\n *\n * @member {Number} module:font/fontcolor~FontColorConfig#documentColors\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor/fontbackgroundcolorcommand\n */\n\nimport FontCommand from '../fontcommand';\nimport { FONT_BACKGROUND_COLOR } from '../utils';\n\n/**\n * The font background color command. It is used by\n * {@link module:font/fontbackgroundcolor/fontbackgroundcolorediting~FontBackgroundColorEditing}\n * to apply the font background color.\n *\n *\t\teditor.execute( 'fontBackgroundColor', { value: 'rgb(250, 20, 20)' } );\n *\n * **Note**: Executing the command with the `null` value removes the attribute from the model.\n *\n * @extends module:font/fontcommand~FontCommand\n */\nexport default class FontBackgroundColorCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor, FONT_BACKGROUND_COLOR );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor/fontbackgroundcolorediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { addBackgroundRules } from 'ckeditor5/src/engine';\n\nimport FontBackgroundColorCommand from './fontbackgroundcolorcommand';\nimport { FONT_BACKGROUND_COLOR, renderDowncastElement, renderUpcastAttribute } from '../utils';\n\n/**\n * The font background color editing feature.\n *\n * It introduces the {@link module:font/fontbackgroundcolor/fontbackgroundcolorcommand~FontBackgroundColorCommand command} and\n * the `fontBackgroundColor` attribute in the {@link module:engine/model/model~Model model} which renders\n * in the {@link module:engine/view/view view} as a `<span>` element (`<span style=\"background-color: ...\">`),\n * depending on the {@link module:font/fontbackgroundcolor~FontBackgroundColorConfig configuration}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontBackgroundColorEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontBackgroundColorEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( FONT_BACKGROUND_COLOR, {\n\t\t\tcolors: [\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 0%)',\n\t\t\t\t\tlabel: 'Black'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 30%)',\n\t\t\t\t\tlabel: 'Dim grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n\t\t\t\t\tlabel: 'Grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n\t\t\t\t\tlabel: 'Light grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n\t\t\t\t\tlabel: 'White',\n\t\t\t\t\thasBorder: true\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 75%, 60%)',\n\t\t\t\t\tlabel: 'Red'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(30, 75%, 60%)',\n\t\t\t\t\tlabel: 'Orange'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(60, 75%, 60%)',\n\t\t\t\t\tlabel: 'Yellow'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(90, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n\t\t\t\t\tlabel: 'Green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(150, 75%, 60%)',\n\t\t\t\t\tlabel: 'Aquamarine'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(180, 75%, 60%)',\n\t\t\t\t\tlabel: 'Turquoise'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(210, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(240, 75%, 60%)',\n\t\t\t\t\tlabel: 'Blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(270, 75%, 60%)',\n\t\t\t\t\tlabel: 'Purple'\n\t\t\t\t}\n\t\t\t],\n\t\t\tcolumns: 5\n\t\t} );\n\n\t\teditor.data.addStyleProcessorRules( addBackgroundRules );\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'background-color': /[\\s\\S]+/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_BACKGROUND_COLOR,\n\t\t\t\tvalue: renderUpcastAttribute( 'background-color' )\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_BACKGROUND_COLOR,\n\t\t\tview: renderDowncastElement( 'background-color' )\n\t\t} );\n\n\t\teditor.commands.add( FONT_BACKGROUND_COLOR, new FontBackgroundColorCommand( editor ) );\n\n\t\t// Allow the font backgroundColor attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_BACKGROUND_COLOR } );\n\n\t\teditor.model.schema.setAttributeProperties( FONT_BACKGROUND_COLOR, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor/fontbackgroundcolorui\n */\n\nimport ColorUI from '../ui/colorui';\nimport { FONT_BACKGROUND_COLOR } from '../utils';\nimport fontBackgroundColorIcon from '../../theme/icons/font-background.svg';\n\n/**\n * The font background color UI plugin. It introduces the `'fontBackgroundColor'` dropdown.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontBackgroundColorUI extends ColorUI {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tconst t = editor.locale.t;\n\n\t\tsuper( editor, {\n\t\t\tcommandName: FONT_BACKGROUND_COLOR,\n\t\t\tcomponentName: FONT_BACKGROUND_COLOR,\n\t\t\ticon: fontBackgroundColorIcon,\n\t\t\tdropdownLabel: t( 'Font Background Color' )\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontBackgroundColorUI';\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M4 2h12a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2zm8.38 9.262H7.62L10 5.506l2.38 5.756zm.532 1.285L14.34 16h1.426L10.804 4H9.196L4.234 16H5.66l1.428-3.453h5.824z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontBackgroundColorEditing from './fontbackgroundcolor/fontbackgroundcolorediting';\nimport FontBackgroundColorUI from './fontbackgroundcolor/fontbackgroundcolorui';\n\n/**\n * The font background color plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentation\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads\n * the {@link module:font/fontbackgroundcolor/fontbackgroundcolorediting~FontBackgroundColorEditing} and\n * {@link module:font/fontbackgroundcolor/fontbackgroundcolorui~FontBackgroundColorUI} features in the editor.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FontBackgroundColor extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FontBackgroundColorEditing, FontBackgroundColorUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FontBackgroundColor';\n\t}\n}\n\n/**\n * The configuration of the font background color feature.\n * It is introduced by the {@link module:font/fontbackgroundcolor/fontbackgroundcolorediting~FontBackgroundColorEditing} feature.\n *\n * Read more in {@link module:font/fontbackgroundcolor~FontBackgroundColorConfig}.\n *\n * @member {module:font/fontbackgroundcolor~FontBackgroundColorConfig} module:core/editor/editorconfig~EditorConfig#fontBackgroundColor\n */\n\n/**\n * The configuration of the font background color feature.\n * This option is used by the {@link module:font/fontbackgroundcolor/fontbackgroundcolorediting~FontBackgroundColorEditing} feature.\n *\n *\t\tClassicEditor\n *\t\t\t.create( {\n *\t\t\t\tfontBackgroundColor: ... // Font background color feature configuration.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface module:font/fontbackgroundcolor~FontBackgroundColorConfig\n */\n\n/**\n * Available font background colors defined as an array of strings or objects.\n *\n * The default value registers the following colors:\n *\n *\t\tconst fontBackgroundColorConfig = {\n *\t\t\tcolors: [\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 0%)',\n *\t\t\t\t\tlabel: 'Black'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 30%)',\n *\t\t\t\t\tlabel: 'Dim grey'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n *\t\t\t\t\tlabel: 'Grey'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n *\t\t\t\t\tlabel: 'Light grey'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n *\t\t\t\t\tlabel: 'White',\n *\t\t\t\t\thasBorder: true\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(0, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Red'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(30, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Orange'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(60, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Yellow'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(90, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Light green'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Green'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(150, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Aquamarine'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(180, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Turquoise'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(210, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Light blue'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(240, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Blue'\n *\t\t\t\t},\n *\t\t\t\t{\n *\t\t\t\t\tcolor: 'hsl(270, 75%, 60%)',\n *\t\t\t\t\tlabel: 'Purple'\n *\t\t\t\t}\n *\t\t\t]\n *\t\t};\n *\n * **Note**: The colors are displayed in the `'fontBackgroundColor'` dropdown.\n *\n * @member {Array.<String|Object>} module:font/fontbackgroundcolor~FontBackgroundColorConfig#colors\n */\n\n/**\n * Represents the number of columns in the font background color dropdown.\n *\n * The default value is:\n *\n *\t\tconst fontBackgroundColorConfig = {\n *\t\t\tcolumns: 5\n *\t\t}\n *\n * @member {Number} module:font/fontbackgroundcolor~FontBackgroundColorConfig#columns\n */\n\n/**\n * Determines the maximum number of available document colors.\n * Setting it to `0` will disable the document colors feature.\n *\n * By default it equals to the {@link module:font/fontbackgroundcolor~FontBackgroundColorConfig#columns} value.\n *\n * Examples:\n *\n * \t// 1) Neither document colors nor columns are defined in the configuration.\n * \t// Document colors will equal 5,\n * \t// because the value will be inherited from columns,\n * \t// which has a predefined value of 5.\n * \tconst fontBackgroundColorConfig = {}\n *\n * \t// 2) Document colors will equal 8, because the value will be inherited from columns.\n * \tconst fontBackgroundColorConfig = {\n * \t\tcolumns: 8\n * \t}\n *\n * \t// 3) Document colors will equal 24, because it has its own value defined.\n * \tconst fontBackgroundColorConfig = {\n * \t\tcolumns: 8,\n * \t\tdocumentColors: 24\n * \t}\n *\n * \t// 4) The document colors feature will be disabled.\n * \tconst fontBackgroundColorConfig = {\n * \t\tcolumns: 8,\n * \t\tdocumentColors: 0\n * \t}\n *\n * @member {Number} module:font/fontbackgroundcolor~FontBackgroundColorConfig#documentColors\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/utils\n */\n\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * Returns code block languages as defined in `config.codeBlock.languages` but processed:\n *\n * * To consider the editor localization, i.e. to display {@link module:code-block/codeblock~CodeBlockLanguageDefinition}\n * in the correct language. There is no way to use {@link module:utils/locale~Locale#t} when the user\n * configuration is defined because the editor does not exist yet.\n * * To make sure each definition has a CSS class associated with it even if not specified\n * in the original configuration.\n *\n * @param {module:core/editor/editor~Editor} editor\n * @returns {Array.<module:code-block/codeblock~CodeBlockLanguageDefinition>}.\n */\nexport function getNormalizedAndLocalizedLanguageDefinitions( editor ) {\n\tconst t = editor.t;\n\tconst languageDefs = editor.config.get( 'codeBlock.languages' );\n\n\tfor ( const def of languageDefs ) {\n\t\tif ( def.label === 'Plain text' ) {\n\t\t\tdef.label = t( 'Plain text' );\n\t\t}\n\n\t\tif ( def.class === undefined ) {\n\t\t\tdef.class = `language-${ def.language }`;\n\t\t}\n\t}\n\n\treturn languageDefs;\n}\n\n/**\n * Returns an object associating certain language definition properties with others. For instance:\n *\n * For:\n *\n *\t\tconst definitions = {\n *\t\t\t{ language: 'php', class: 'language-php', label: 'PHP' },\n *\t\t\t{ language: 'javascript', class: 'js', label: 'JavaScript' },\n *\t\t};\n *\n *\t\tgetPropertyAssociation( definitions, 'class', 'language' );\n *\n * returns:\n *\n *\t\t{\n *\t\t\t'language-php': 'php'\n *\t\t\t'js': 'javascript'\n *\t\t}\n *\n * and\n *\n *\t\tgetPropertyAssociation( definitions, 'language', 'label' );\n *\n * returns:\n *\n *\t\t{\n *\t\t\t'php': 'PHP'\n *\t\t\t'javascript': 'JavaScript'\n *\t\t}\n *\n * @param {Array.<module:code-block/codeblock~CodeBlockLanguageDefinition>}\n * @param {String} key\n * @param {String} value\n * @param {Object.<String,String>}\n */\nexport function getPropertyAssociation( languageDefs, key, value ) {\n\tconst association = {};\n\n\tfor ( const def of languageDefs ) {\n\t\tif ( key === 'class' ) {\n\t\t\t// Only the first class is considered.\n\t\t\tassociation[ def[ key ].split( ' ' ).shift() ] = def[ value ];\n\t\t} else {\n\t\t\tassociation[ def[ key ] ] = def[ value ];\n\t\t}\n\t}\n\n\treturn association;\n}\n\n/**\n * For a given model text node, it returns white spaces that precede other characters in that node.\n * This corresponds to the indentation part of the code block line.\n *\n * @param {module:engine/model/text~Text} codeLineNodes\n * @returns {String}\n */\nexport function getLeadingWhiteSpaces( textNode ) {\n\treturn textNode.data.match( /^(\\s*)/ )[ 0 ];\n}\n\n/**\n * For plain text containing the code (a snippet), it returns a document fragment containing\n * view text nodes separated by `<br>` elements (in place of new line characters \"\\n\"), for instance:\n *\n * Input:\n *\n *\t\t\"foo()\\n\n *\t\tbar()\"\n *\n * Output:\n *\n *\t\t<DocumentFragment>\n *\t\t\t\"foo()\"\n *\t\t\t<br/>\n *\t\t\t\"bar()\"\n *\t\t</DocumentFragment>\n *\n * @param {module:engine/view/upcastwriter~UpcastWriter} writer\n * @param {String} text The raw code text to be converted.\n * @returns {module:engine/view/documentfragment~DocumentFragment}\n */\nexport function rawSnippetTextToViewDocumentFragment( writer, text ) {\n\tconst fragment = writer.createDocumentFragment();\n\tconst textLines = text.split( '\\n' );\n\n\tconst nodes = textLines.reduce( ( nodes, line, lineIndex ) => {\n\t\tnodes.push( line );\n\n\t\tif ( lineIndex < textLines.length - 1 ) {\n\t\t\tnodes.push( writer.createElement( 'br' ) );\n\t\t}\n\n\t\treturn nodes;\n\t}, [] );\n\n\twriter.appendChild( nodes, fragment );\n\n\treturn fragment;\n}\n\n/**\n * Returns an array of all model positions within the selection that represent code block lines.\n *\n * If the selection is collapsed, it returns the exact selection anchor position:\n *\n *\t\t<codeBlock>[]foo</codeBlock>        ->     <codeBlock>^foo</codeBlock>\n *\t\t<codeBlock>foo[]bar</codeBlock>     ->     <codeBlock>foo^bar</codeBlock>\n *\n * Otherwise, it returns positions **before** each text node belonging to all code blocks contained by the selection:\n *\n *\t\t<codeBlock>                                <codeBlock>\n *\t\t    foo[bar                                   ^foobar\n *\t\t    <softBreak></softBreak>         ->        <softBreak></softBreak>\n *\t\t    baz]qux                                   ^bazqux\n *\t\t</codeBlock>                               </codeBlock>\n *\n * It also works across other non–code blocks:\n *\n *\t\t<codeBlock>                                <codeBlock>\n *\t\t    foo[bar                                   ^foobar\n *\t\t</codeBlock>                               </codeBlock>\n *\t\t<paragraph>text</paragraph>         ->     <paragraph>text</paragraph>\n *\t\t<codeBlock>                                <codeBlock>\n *\t\t    baz]qux                                   ^bazqux\n *\t\t</codeBlock>                               </codeBlock>\n *\n * **Note:** The positions are in reverse order so they do not get outdated when iterating over them and\n * the writer inserts or removes elements at the same time.\n *\n * **Note:** The position is located after the leading white spaces in the text node.\n *\n * @param {module:engine/model/model~Model} model\n * @returns {Array.<module:engine/model/position~Position>}\n */\nexport function getIndentOutdentPositions( model ) {\n\tconst selection = model.document.selection;\n\tconst positions = [];\n\n\t// When the selection is collapsed, there's only one position we can indent or outdent.\n\tif ( selection.isCollapsed ) {\n\t\tpositions.push( selection.anchor );\n\t}\n\n\t// When the selection is NOT collapsed, collect all positions starting before text nodes\n\t// (code lines) in any <codeBlock> within the selection.\n\telse {\n\t\t// Walk backward so positions we are about to collect here do not get outdated when\n\t\t// inserting or deleting using the writer.\n\t\tconst walker = selection.getFirstRange().getWalker( {\n\t\t\tignoreElementEnd: true,\n\t\t\tdirection: 'backward'\n\t\t} );\n\n\t\tfor ( const { item } of walker ) {\n\t\t\tif ( item.is( '$textProxy' ) && item.parent.is( 'element', 'codeBlock' ) ) {\n\t\t\t\tconst leadingWhiteSpaces = getLeadingWhiteSpaces( item.textNode );\n\t\t\t\tconst { parent, startOffset } = item.textNode;\n\n\t\t\t\t// Make sure the position is after all leading whitespaces in the text node.\n\t\t\t\tconst position = model.createPositionAt( parent, startOffset + leadingWhiteSpaces.length );\n\n\t\t\t\tpositions.push( position );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn positions;\n}\n\n/**\n * Checks if any of the blocks within the model selection is a code block.\n *\n * @param {module:engine/model/selection~Selection} selection\n * @returns {Boolean}\n */\nexport function isModelSelectionInCodeBlock( selection ) {\n\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\treturn firstBlock && firstBlock.is( 'element', 'codeBlock' );\n}\n\n/**\n * Checks if an {@link module:engine/model/element~Element Element} can become a code block.\n *\n * @param {module:engine/model/schema~Schema} schema Model's schema.\n * @param {module:engine/model/element~Element} element The element to be checked.\n * @returns {Boolean} Check result.\n */\nexport function canBeCodeBlock( schema, element ) {\n\tif ( element.is( 'rootElement' ) || schema.isLimit( element ) ) {\n\t\treturn false;\n\t}\n\n\treturn schema.checkChild( element.parent, 'codeBlock' );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblockcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\nimport { getNormalizedAndLocalizedLanguageDefinitions, canBeCodeBlock } from './utils';\n\n/**\n * The code block command plugin.\n *\n * @extends module:core/command~Command\n */\nexport default class CodeBlockCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * Contains the last used language.\n\n\t\t * @protected\n\t\t * @type {String|null}\n\t\t */\n\t\tthis._lastLanguage = null;\n\t}\n\n\t/**\n\t * Whether the selection starts in a code block.\n\t *\n\t * @observable\n\t * @readonly\n\t * @member {Boolean} #value\n\t */\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #value is on}, all topmost code blocks within\n\t * the selection will be removed. If it is off, all selected blocks will be flattened and\n\t * wrapped by a code block.\n\t *\n\t * @fires execute\n\t * @param {Object} [options] Command options.\n\t * @param {String} [options.language] The code block language.\n\t * @param {Boolean} [options.forceValue] If set, it will force the command behavior. If `true`, the command will apply a code block,\n\t * otherwise the command will remove the code block. If not set, the command will act basing on its current value.\n\t * @param {Boolean} [options.usePreviousLanguageChoice] If set on `true` and the `options.language` is not specified, the command\n\t * will apply the previous language (if the command was already executed) when inserting the `codeBlock` element.\n\t */\n\texecute( options = {} ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst normalizedLanguagesDefs = getNormalizedAndLocalizedLanguageDefinitions( editor );\n\t\tconst firstLanguageInConfig = normalizedLanguagesDefs[ 0 ];\n\n\t\tconst blocks = Array.from( selection.getSelectedBlocks() );\n\t\tconst value = ( options.forceValue === undefined ) ? !this.value : options.forceValue;\n\t\tconst language = getLanguage( options, this._lastLanguage, firstLanguageInConfig.language );\n\n\t\tmodel.change( writer => {\n\t\t\tif ( value ) {\n\t\t\t\tthis._applyCodeBlock( writer, blocks, language );\n\t\t\t} else {\n\t\t\t\tthis._removeCodeBlock( writer, blocks );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @private\n\t * @returns {Boolean} The current value.\n\t */\n\t_getValue() {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\t\tconst isCodeBlock = !!( firstBlock && firstBlock.is( 'element', 'codeBlock' ) );\n\n\t\treturn isCodeBlock ? firstBlock.getAttribute( 'language' ) : false;\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\t_checkEnabled() {\n\t\tif ( this.value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\tif ( !firstBlock ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn canBeCodeBlock( schema, firstBlock );\n\t}\n\n\t/**\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t * @param {Array.<module:engine/model/element~Element>} blocks\n\t * @param {String} [language]\n\t */\n\t_applyCodeBlock( writer, blocks, language ) {\n\t\tthis._lastLanguage = language;\n\n\t\tconst schema = this.editor.model.schema;\n\t\tconst allowedBlocks = blocks.filter( block => canBeCodeBlock( schema, block ) );\n\n\t\tfor ( const block of allowedBlocks ) {\n\t\t\twriter.rename( block, 'codeBlock' );\n\t\t\twriter.setAttribute( 'language', language, block );\n\t\t\tschema.removeDisallowedAttributes( [ block ], writer );\n\n\t\t\t// Remove children of the  `codeBlock` element that are not allowed. See #9567.\n\t\t\tArray.from( block.getChildren() )\n\t\t\t\t.filter( child => !schema.checkChild( block, child ) )\n\t\t\t\t.forEach( child => writer.remove( child ) );\n\t\t}\n\n\t\tallowedBlocks.reverse().forEach( ( currentBlock, i ) => {\n\t\t\tconst nextBlock = allowedBlocks[ i + 1 ];\n\n\t\t\tif ( currentBlock.previousSibling === nextBlock ) {\n\t\t\t\twriter.appendElement( 'softBreak', nextBlock );\n\t\t\t\twriter.merge( writer.createPositionBefore( currentBlock ) );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @private\n\t * @param {module:engine/model/writer~Writer} writer\n\t * @param {Array.<module:engine/model/element~Element>} blocks\n\t */\n\t_removeCodeBlock( writer, blocks ) {\n\t\tconst codeBlocks = blocks.filter( block => block.is( 'element', 'codeBlock' ) );\n\n\t\tfor ( const block of codeBlocks ) {\n\t\t\tconst range = writer.createRangeOn( block );\n\n\t\t\tfor ( const item of Array.from( range.getItems() ).reverse() ) {\n\t\t\t\tif ( item.is( 'element', 'softBreak' ) && item.parent.is( 'element', 'codeBlock' ) ) {\n\t\t\t\t\tconst { position } = writer.split( writer.createPositionBefore( item ) );\n\n\t\t\t\t\twriter.rename( position.nodeAfter, 'paragraph' );\n\t\t\t\t\twriter.removeAttribute( 'language', position.nodeAfter );\n\t\t\t\t\twriter.remove( item );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\twriter.rename( block, 'paragraph' );\n\t\t\twriter.removeAttribute( 'language', block );\n\t\t}\n\t}\n}\n\n// Picks the language for the new code block. If any language is passed as an option,\n// it will be returned. Else, if option usePreviousLanguageChoice is true and some\n// code block was already created (lastLanguage is not null) then previously used\n// language will be returned. If not, it will return default language.\n//\n// @param {Object} options\n// @param {Boolean} [options.usePreviousLanguageChoice]\n// @param {String} [options.language]\n// @param {String|null} lastLanguage\n// @param {String} defaultLanguage\n// @return {String}\nfunction getLanguage( options, lastLanguage, defaultLanguage ) {\n\tif ( options.language ) {\n\t\treturn options.language;\n\t}\n\n\tif ( options.usePreviousLanguageChoice && lastLanguage ) {\n\t\treturn lastLanguage;\n\t}\n\n\treturn defaultLanguage;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/indentcodeblockcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport {\n\tgetIndentOutdentPositions,\n\tisModelSelectionInCodeBlock\n} from './utils';\n\n/**\n * The code block indentation increase command plugin.\n *\n * @extends module:core/command~Command\n */\nexport default class IndentCodeBlockCommand extends Command {\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A sequence of characters added to the line when the command is executed.\n\t\t *\n\t\t * @readonly\n\t\t * @private\n\t\t * @member {String}\n\t\t */\n\t\tthis._indentSequence = editor.config.get( 'codeBlock.indentSequence' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #isEnabled is enabled}, the indentation of the\n\t * code lines in the selection will be increased.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tmodel.change( writer => {\n\t\t\tconst positions = getIndentOutdentPositions( model );\n\n\t\t\t// Indent all positions, for instance assuming the indent sequence is 4x space (\"    \"):\n\t\t\t//\n\t\t\t//\t\t<codeBlock>^foo</codeBlock>        ->       <codeBlock>    foo</codeBlock>\n\t\t\t//\n\t\t\t//\t\t<codeBlock>foo^bar</codeBlock>     ->       <codeBlock>foo    bar</codeBlock>\n\t\t\t//\n\t\t\t// Also, when there is more than one position:\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\t^foobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\t^bazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\t//\n\t\t\t//\t\t->\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\t    foobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\t    bazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\t//\n\t\t\tfor ( const position of positions ) {\n\t\t\t\tconst indentSequenceTextElement = writer.createText( this._indentSequence );\n\n\t\t\t\t// Previously insertion was done by writer.insertText(). It was changed to insertContent() to enable\n\t\t\t\t// integration of code block with track changes. It's the easiest way of integration because insertContent()\n\t\t\t\t// is already integrated with track changes, but if it ever cause any troubles it can be reverted, however\n\t\t\t\t// some additional work will be required in track changes integration of code block.\n\t\t\t\tmodel.insertContent( indentSequenceTextElement, position );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\t_checkEnabled() {\n\t\tif ( !this._indentSequence ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Indent (forward) command is always enabled when there's any code block in the selection\n\t\t// because you can always indent code lines.\n\t\treturn isModelSelectionInCodeBlock( this.editor.model.document.selection );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/outdentcodeblockcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport {\n\tgetLeadingWhiteSpaces,\n\tgetIndentOutdentPositions,\n\tisModelSelectionInCodeBlock\n} from './utils';\n\n/**\n * The code block indentation decrease command plugin.\n *\n * @extends module:core/command~Command\n */\nexport default class OutdentCodeBlockCommand extends Command {\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * A sequence of characters removed from the line when the command is executed.\n\t\t *\n\t\t * @readonly\n\t\t * @private\n\t\t * @member {String}\n\t\t */\n\t\tthis._indentSequence = editor.config.get( 'codeBlock.indentSequence' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #isEnabled is enabled}, the indentation of the\n\t * code lines in the selection will be decreased.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tmodel.change( () => {\n\t\t\tconst positions = getIndentOutdentPositions( model );\n\n\t\t\t// Outdent all positions, for instance assuming the indent sequence is 4x space (\"    \"):\n\t\t\t//\n\t\t\t//\t\t<codeBlock>^foo</codeBlock>         ->       <codeBlock>foo</codeBlock>\n\t\t\t//\n\t\t\t//\t\t<codeBlock>    ^bar</codeBlock>     ->       <codeBlock>bar</codeBlock>\n\t\t\t//\n\t\t\t// Also, when there is more than one position:\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\t    ^foobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\t    ^bazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\t//\n\t\t\t//\t\t->\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\tfoobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\tbazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\tfor ( const position of positions ) {\n\t\t\t\tconst range = getLastOutdentableSequenceRange( model, position, this._indentSequence );\n\n\t\t\t\tif ( range ) {\n\t\t\t\t\t// Previously deletion was done by writer.remove(). It was changed to deleteContent() to enable\n\t\t\t\t\t// integration of code block with track changes. It's the easiest way of integration because deleteContent()\n\t\t\t\t\t// is already integrated with track changes, but if it ever cause any troubles it can be reverted, however\n\t\t\t\t\t// some additional work will be required in track changes integration of code block.\n\t\t\t\t\tmodel.deleteContent( model.createSelection( range ) );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\t_checkEnabled() {\n\t\tif ( !this._indentSequence ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst model = this.editor.model;\n\n\t\tif ( !isModelSelectionInCodeBlock( model.document.selection ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Outdent command can execute only when there is an indent character sequence\n\t\t// in some of the lines.\n\t\treturn getIndentOutdentPositions( model ).some( position => {\n\t\t\treturn getLastOutdentableSequenceRange( model, position, this._indentSequence );\n\t\t} );\n\t}\n}\n\n// For a position coming from `getIndentOutdentPositions()`, it returns the range representing\n// the last occurrence of the indent sequence among the leading whitespaces of the code line the\n// position represents.\n//\n// For instance, assuming the indent sequence is 4x space (\"    \"):\n//\n//\t\t<codeBlock>foo^</codeBlock>                                 ->          null\n//\t\t<codeBlock>foo^<softBreak></softBreak>bar</codeBlock>       ->          null\n//\t\t<codeBlock>  ^foo</codeBlock>                               ->          null\n//\t\t<codeBlock>        ^foo</codeBlock>                         ->          <codeBlock>    [    ]foo</codeBlock>\n//\t\t<codeBlock>    ^foo    bar</codeBlock>                      ->          <codeBlock>[    ]foo    bar</codeBlock>\n//\n// @param {<module:engine/model/model~Model>} model\n// @param {<module:engine/model/position~Position>} position\n// @param {String} sequence\n// @returns {<module:engine/model/range~Range>|null}\nfunction getLastOutdentableSequenceRange( model, position, sequence ) {\n\t// Positions start before each text node (code line). Get the node corresponding to the position.\n\tconst nodeAtPosition = getCodeLineTextNodeAtPosition( position );\n\n\tif ( !nodeAtPosition ) {\n\t\treturn null;\n\t}\n\n\tconst leadingWhiteSpaces = getLeadingWhiteSpaces( nodeAtPosition );\n\tconst lastIndexOfSequence = leadingWhiteSpaces.lastIndexOf( sequence );\n\n\t// For instance, assuming the indent sequence is 4x space (\"    \"):\n\t//\n\t//\t\t<codeBlock>    \t^foo</codeBlock>           ->             null\n\t//\n\tif ( lastIndexOfSequence + sequence.length !== leadingWhiteSpaces.length ) {\n\t\treturn null;\n\t}\n\n\t// For instance, assuming the indent sequence is 4x space (\"    \"):\n\t//\n\t//\t\t<codeBlock>  ^foo</codeBlock>           ->             null\n\t//\n\tif ( lastIndexOfSequence === -1 ) {\n\t\treturn null;\n\t}\n\n\tconst { parent, startOffset } = nodeAtPosition;\n\n\t// Create a range that contains the **last** indent sequence among the leading whitespaces\n\t// of the line.\n\t//\n\t// For instance, assuming the indent sequence is 4x space (\"    \"):\n\t//\n\t//\t\t<codeBlock>        ^foo</codeBlock>      ->     <codeBlock>    [    ]foo</codeBlock>\n\t//\n\treturn model.createRange(\n\t\tmodel.createPositionAt( parent, startOffset + lastIndexOfSequence ),\n\t\tmodel.createPositionAt( parent, startOffset + lastIndexOfSequence + sequence.length )\n\t);\n}\n\nfunction getCodeLineTextNodeAtPosition( position ) {\n\t// Positions start before each text node (code line). Get the node corresponding to the position.\n\tlet nodeAtPosition = position.parent.getChild( position.index );\n\n\t// <codeBlock>foo^</codeBlock>\n\t// <codeBlock>foo^<softBreak></softBreak>bar</codeBlock>\n\tif ( !nodeAtPosition || nodeAtPosition.is( 'element', 'softBreak' ) ) {\n\t\tnodeAtPosition = position.nodeBefore;\n\t}\n\n\t// <codeBlock>^</codeBlock>\n\t// <codeBlock>foo^<softBreak></softBreak>bar</codeBlock>\n\tif ( !nodeAtPosition || nodeAtPosition.is( 'element', 'softBreak' ) ) {\n\t\treturn null;\n\t}\n\n\treturn nodeAtPosition;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/converters\n */\n\nimport { getPropertyAssociation } from './utils';\n\n/**\n * A model-to-view (both editing and data) converter for the `codeBlock` element.\n *\n * Sample input:\n *\n *\t\t<codeBlock language=\"javascript\">foo();<softBreak></softBreak>bar();</codeBlock>\n *\n * Sample output (editing):\n *\n *\t\t<pre data-language=\"JavaScript\"><code class=\"language-javascript\">foo();<br />bar();</code></pre>\n *\n * Sample output (data, see {@link module:code-block/converters~modelToDataViewSoftBreakInsertion}):\n *\n *\t\t<pre><code class=\"language-javascript\">foo();\\nbar();</code></pre>\n *\n * @param {module:engine/model/model~Model} model\n * @param {Array.<module:code-block/codeblock~CodeBlockLanguageDefinition>} languageDefs The normalized language\n * configuration passed to the feature.\n * @param {Boolean} [useLabels=false] When `true`, the `<pre>` element will get a `data-language` attribute with a\n * human–readable label of the language. Used only in the editing.\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelToViewCodeBlockInsertion( model, languageDefs, useLabels = false ) {\n\t// Language CSS classes:\n\t//\n\t//\t\t{\n\t//\t\t\tphp: 'language-php',\n\t//\t\t\tpython: 'language-python',\n\t//\t\t\tjavascript: 'js',\n\t//\t\t\t...\n\t//\t\t}\n\tconst languagesToClasses = getPropertyAssociation( languageDefs, 'language', 'class' );\n\n\t// Language labels:\n\t//\n\t//\t\t{\n\t//\t\t\tphp: 'PHP',\n\t//\t\t\tpython: 'Python',\n\t//\t\t\tjavascript: 'JavaScript',\n\t//\t\t\t...\n\t//\t\t}\n\tconst languagesToLabels = getPropertyAssociation( languageDefs, 'language', 'label' );\n\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst { writer, mapper, consumable } = conversionApi;\n\n\t\tif ( !consumable.consume( data.item, 'insert' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst codeBlockLanguage = data.item.getAttribute( 'language' );\n\t\tconst targetViewPosition = mapper.toViewPosition( model.createPositionBefore( data.item ) );\n\t\tconst preAttributes = {};\n\n\t\t// Attributes added only in the editing view.\n\t\tif ( useLabels ) {\n\t\t\tpreAttributes[ 'data-language' ] = languagesToLabels[ codeBlockLanguage ];\n\t\t\tpreAttributes.spellcheck = 'false';\n\t\t}\n\n\t\tconst code = writer.createContainerElement( 'code', {\n\t\t\tclass: languagesToClasses[ codeBlockLanguage ] || null\n\t\t} );\n\n\t\tconst pre = writer.createContainerElement( 'pre', preAttributes, code );\n\n\t\twriter.insert( targetViewPosition, pre );\n\t\tmapper.bindElements( data.item, code );\n\t};\n}\n\n/**\n * A model-to-data view converter for the new line (`softBreak`) separator.\n *\n * Sample input:\n *\n *\t\t<codeBlock ...>foo();<softBreak></softBreak>bar();</codeBlock>\n *\n * Sample output:\n *\n *\t\t<pre><code ...>foo();\\nbar();</code></pre>\n *\n * @param {module:engine/model/model~Model} model\n * @returns {Function} Returns a conversion callback.\n */\nexport function modelToDataViewSoftBreakInsertion( model ) {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( data.item.parent.name !== 'codeBlock' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { writer, mapper, consumable } = conversionApi;\n\n\t\tif ( !consumable.consume( data.item, 'insert' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = mapper.toViewPosition( model.createPositionBefore( data.item ) );\n\n\t\twriter.insert( position, writer.createText( '\\n' ) );\n\t};\n}\n\n/**\n * A view-to-model converter for `<pre>` with the `<code>` HTML.\n *\n * Sample input:\n *\n *\t\t<pre><code class=\"language-javascript\">foo();bar();</code></pre>\n *\n * Sample output:\n *\n *\t\t<codeBlock language=\"javascript\">foo();bar();</codeBlock>\n *\n * @param {module:engine/view/view~View} editingView\n * @param {Array.<module:code-block/codeblock~CodeBlockLanguageDefinition>} languageDefs The normalized language\n * configuration passed to the feature.\n * @returns {Function} Returns a conversion callback.\n */\nexport function dataViewToModelCodeBlockInsertion( editingView, languageDefs ) {\n\t// Language names associated with CSS classes:\n\t//\n\t//\t\t{\n\t//\t\t\t'language-php': 'php',\n\t//\t\t\t'language-python': 'python',\n\t//\t\t\tjs: 'javascript',\n\t//\t\t\t...\n\t//\t\t}\n\tconst classesToLanguages = getPropertyAssociation( languageDefs, 'class', 'language' );\n\tconst defaultLanguageName = languageDefs[ 0 ].language;\n\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst viewCodeElement = data.viewItem;\n\t\tconst viewPreElement = viewCodeElement.parent;\n\n\t\tif ( !viewPreElement || !viewPreElement.is( 'element', 'pre' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// In case of nested code blocks we don't want to convert to another code block.\n\t\tif ( data.modelCursor.findAncestor( 'codeBlock' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { consumable, writer } = conversionApi;\n\n\t\tif ( !consumable.test( viewCodeElement, { name: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst codeBlock = writer.createElement( 'codeBlock' );\n\t\tconst viewChildClasses = [ ...viewCodeElement.getClassNames() ];\n\n\t\t// As we're to associate each class with a model language, a lack of class (empty class) can be\n\t\t// also associated with a language if the language definition was configured so. Pushing an empty\n\t\t// string to make sure the association will work.\n\t\tif ( !viewChildClasses.length ) {\n\t\t\tviewChildClasses.push( '' );\n\t\t}\n\n\t\t// Figure out if any of the <code> element's class names is a valid programming\n\t\t// language class. If so, use it on the model element (becomes the language of the entire block).\n\t\tfor ( const className of viewChildClasses ) {\n\t\t\tconst language = classesToLanguages[ className ];\n\n\t\t\tif ( language ) {\n\t\t\t\twriter.setAttribute( 'language', language, codeBlock );\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\t// If no language value was set, use the default language from the config.\n\t\tif ( !codeBlock.hasAttribute( 'language' ) ) {\n\t\t\twriter.setAttribute( 'language', defaultLanguageName, codeBlock );\n\t\t}\n\n\t\tconversionApi.convertChildren( viewCodeElement, codeBlock );\n\n\t\t// Let's try to insert code block.\n\t\tif ( !conversionApi.safeInsert( codeBlock, data.modelCursor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconsumable.consume( viewCodeElement, { name: true } );\n\n\t\tconversionApi.updateConversionResult( codeBlock, data );\n\t};\n}\n\n/**\n * A view-to-model converter for new line characters in `<pre>`.\n *\n * Sample input:\n *\n *\t\t<pre><code class=\"language-javascript\">foo();\\nbar();</code></pre>\n *\n * Sample output:\n *\n *\t\t<codeBlock language=\"javascript\">foo();<softBreak></softBreak>bar();</codeBlock>\n *\n * @returns {Function} Returns a conversion callback.\n */\nexport function dataViewToModelTextNewlinesInsertion() {\n\treturn ( evt, data, { consumable, writer } ) => {\n\t\tlet position = data.modelCursor;\n\n\t\t// When node is already converted then do nothing.\n\t\tif ( !consumable.test( data.viewItem ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// When not inside `codeBlock` then do nothing.\n\t\tif ( !position.findAncestor( 'codeBlock' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconsumable.consume( data.viewItem );\n\n\t\tconst text = data.viewItem.data;\n\t\tconst textLines = text.split( '\\n' ).map( data => writer.createText( data ) );\n\t\tconst lastLine = textLines[ textLines.length - 1 ];\n\n\t\tfor ( const node of textLines ) {\n\t\t\twriter.insert( node, position );\n\t\t\tposition = position.getShiftedBy( node.offsetSize );\n\n\t\t\tif ( node !== lastLine ) {\n\t\t\t\tconst softBreak = writer.createElement( 'softBreak' );\n\n\t\t\t\twriter.insert( softBreak, position );\n\t\t\t\tposition = writer.createPositionAfter( softBreak );\n\t\t\t}\n\t\t}\n\n\t\tdata.modelRange = writer.createRange(\n\t\t\tdata.modelCursor,\n\t\t\tposition\n\t\t);\n\t\tdata.modelCursor = position;\n\t};\n}\n\n/**\n * A view-to-model converter that handles orphan text nodes (white spaces, new lines, etc.)\n * that surround `<code>` inside `<pre>`.\n *\n * Sample input:\n *\n *\t\t// White spaces\n *\t\t<pre> <code>foo()</code> </pre>\n *\n *\t\t// White spaces\n *\t\t<pre>      <code>foo()</code>      </pre>\n *\n *\t\t// White spaces\n *\t\t<pre>\t\t\t<code>foo()</code>\t\t\t</pre>\n *\n *\t\t// New lines\n *\t\t<pre>\n *\t\t\t<code>foo()</code>\n *\t\t</pre>\n *\n *\t\t// Redundant text\n *\t\t<pre>ABC<code>foo()</code>DEF</pre>\n *\n * Unified output for each case:\n *\n *\t\t<codeBlock language=\"plaintext\">foo()</codeBlock>\n *\n * @returns {Function} Returns a conversion callback.\n */\nexport function dataViewToModelOrphanNodeConsumer() {\n\treturn ( evt, data, { consumable } ) => {\n\t\tconst preElement = data.viewItem;\n\n\t\t// Don't clean up nested pre elements. Their content should stay as it is, they are not upcasted\n\t\t// to code blocks.\n\t\tif ( preElement.findAncestor( 'pre' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst preChildren = Array.from( preElement.getChildren() );\n\t\tconst childCodeElement = preChildren.find( node => node.is( 'element', 'code' ) );\n\n\t\t// <code>-less <pre>. It will not upcast to code block in the model, skipping.\n\t\tif ( !childCodeElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const child of preChildren ) {\n\t\t\tif ( child === childCodeElement || !child.is( '$text' ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Consuming the orphan to remove it from the input data.\n\t\t\t// Second argument in `consumable.consume` is discarded for text nodes.\n\t\t\tconsumable.consume( child, { name: true } );\n\t\t}\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblockediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ShiftEnter } from 'ckeditor5/src/enter';\nimport { UpcastWriter } from 'ckeditor5/src/engine';\n\nimport CodeBlockCommand from './codeblockcommand';\nimport IndentCodeBlockCommand from './indentcodeblockcommand';\nimport OutdentCodeBlockCommand from './outdentcodeblockcommand';\nimport {\n\tgetNormalizedAndLocalizedLanguageDefinitions,\n\tgetLeadingWhiteSpaces,\n\trawSnippetTextToViewDocumentFragment\n} from './utils';\nimport {\n\tmodelToViewCodeBlockInsertion,\n\tmodelToDataViewSoftBreakInsertion,\n\tdataViewToModelCodeBlockInsertion,\n\tdataViewToModelTextNewlinesInsertion,\n\tdataViewToModelOrphanNodeConsumer\n} from './converters';\n\nconst DEFAULT_ELEMENT = 'paragraph';\n\n/**\n * The editing part of the code block feature.\n *\n * Introduces the `'codeBlock'` command and the `'codeBlock'` model element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class CodeBlockEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'CodeBlockEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ShiftEnter ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'codeBlock', {\n\t\t\tlanguages: [\n\t\t\t\t{ language: 'plaintext', label: 'Plain text' },\n\t\t\t\t{ language: 'c', label: 'C' },\n\t\t\t\t{ language: 'cs', label: 'C#' },\n\t\t\t\t{ language: 'cpp', label: 'C++' },\n\t\t\t\t{ language: 'css', label: 'CSS' },\n\t\t\t\t{ language: 'diff', label: 'Diff' },\n\t\t\t\t{ language: 'html', label: 'HTML' },\n\t\t\t\t{ language: 'java', label: 'Java' },\n\t\t\t\t{ language: 'javascript', label: 'JavaScript' },\n\t\t\t\t{ language: 'php', label: 'PHP' },\n\t\t\t\t{ language: 'python', label: 'Python' },\n\t\t\t\t{ language: 'ruby', label: 'Ruby' },\n\t\t\t\t{ language: 'typescript', label: 'TypeScript' },\n\t\t\t\t{ language: 'xml', label: 'XML' }\n\t\t\t],\n\n\t\t\t// A single tab.\n\t\t\tindentSequence: '\\t'\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst isDocumentListEditingLoaded = editor.plugins.has( 'DocumentListEditing' );\n\n\t\tconst normalizedLanguagesDefs = getNormalizedAndLocalizedLanguageDefinitions( editor );\n\n\t\t// The main command.\n\t\teditor.commands.add( 'codeBlock', new CodeBlockCommand( editor ) );\n\n\t\t// Commands that change the indentation.\n\t\teditor.commands.add( 'indentCodeBlock', new IndentCodeBlockCommand( editor ) );\n\t\teditor.commands.add( 'outdentCodeBlock', new OutdentCodeBlockCommand( editor ) );\n\n\t\tthis.listenTo( view.document, 'tab', ( evt, data ) => {\n\t\t\tconst commandName = data.shiftKey ? 'outdentCodeBlock' : 'indentCodeBlock';\n\t\t\tconst command = editor.commands.get( commandName );\n\n\t\t\tif ( !command.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.execute( commandName );\n\n\t\t\tdata.stopPropagation();\n\t\t\tdata.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: 'pre' } );\n\n\t\tschema.register( 'codeBlock', {\n\t\t\tallowWhere: '$block',\n\t\t\tallowChildren: '$text',\n\t\t\tisBlock: true,\n\t\t\tallowAttributes: [ 'language' ]\n\t\t} );\n\n\t\t// Allow all list* attributes on `codeBlock` (integration with DocumentList).\n\t\t// Disallow all attributes on $text inside `codeBlock`.\n\t\tschema.addAttributeCheck( ( context, attributeName ) => {\n\t\t\tconst isDocumentListAttributeOnCodeBlock = context.endsWith( 'codeBlock' ) &&\n\t\t\t\tattributeName.startsWith( 'list' ) &&\n\t\t\t\tattributeName !== 'list';\n\n\t\t\tif ( isDocumentListEditingLoaded && isDocumentListAttributeOnCodeBlock ) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tif ( context.endsWith( 'codeBlock $text' ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\t// Disallow object elements inside `codeBlock`. See #9567.\n\t\teditor.model.schema.addChildCheck( ( context, childDefinition ) => {\n\t\t\tif ( context.endsWith( 'codeBlock' ) && childDefinition.isObject ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\t// Conversion.\n\t\teditor.editing.downcastDispatcher.on( 'insert:codeBlock', modelToViewCodeBlockInsertion( model, normalizedLanguagesDefs, true ) );\n\t\teditor.data.downcastDispatcher.on( 'insert:codeBlock', modelToViewCodeBlockInsertion( model, normalizedLanguagesDefs ) );\n\t\teditor.data.downcastDispatcher.on( 'insert:softBreak', modelToDataViewSoftBreakInsertion( model ), { priority: 'high' } );\n\n\t\teditor.data.upcastDispatcher.on( 'element:code', dataViewToModelCodeBlockInsertion( view, normalizedLanguagesDefs ) );\n\t\teditor.data.upcastDispatcher.on( 'text', dataViewToModelTextNewlinesInsertion() );\n\n\t\teditor.data.upcastDispatcher.on( 'element:pre', dataViewToModelOrphanNodeConsumer(), { priority: 'high' } );\n\n\t\t// Intercept the clipboard input (paste) when the selection is anchored in the code block and force the clipboard\n\t\t// data to be pasted as a single plain text. Otherwise, the code lines will split the code block and\n\t\t// \"spill out\" as separate paragraphs.\n\t\tthis.listenTo( editor.editing.view.document, 'clipboardInput', ( evt, data ) => {\n\t\t\tlet insertionRange = model.createRange( model.document.selection.anchor );\n\n\t\t\t// Use target ranges in case this is a drop.\n\t\t\tif ( data.targetRanges ) {\n\t\t\t\tinsertionRange = editor.editing.mapper.toModelRange( data.targetRanges[ 0 ] );\n\t\t\t}\n\n\t\t\tif ( !insertionRange.start.parent.is( 'element', 'codeBlock' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst text = data.dataTransfer.getData( 'text/plain' );\n\t\t\tconst writer = new UpcastWriter( editor.editing.view.document );\n\n\t\t\t// Pass the view fragment to the default clipboardInput handler.\n\t\t\tdata.content = rawSnippetTextToViewDocumentFragment( writer, text );\n\t\t} );\n\n\t\t// Make sure multi–line selection is always wrapped in a code block when `getSelectedContent()`\n\t\t// is used (e.g. clipboard copy). Otherwise, only the raw text will be copied to the clipboard and,\n\t\t// upon next paste, this bare text will not be inserted as a code block, which is not the best UX.\n\t\t// Similarly, when the selection in a single line, the selected content should be an inline code\n\t\t// so it can be pasted later on and retain it's preformatted nature.\n\t\tthis.listenTo( model, 'getSelectedContent', ( evt, [ selection ] ) => {\n\t\t\tconst anchor = selection.anchor;\n\n\t\t\tif ( selection.isCollapsed || !anchor.parent.is( 'element', 'codeBlock' ) || !anchor.hasSameParentAs( selection.focus ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tconst docFragment = evt.return;\n\n\t\t\t\t// fo[o<softBreak></softBreak>b]ar  ->   <codeBlock language=\"...\">[o<softBreak></softBreak>b]<codeBlock>\n\t\t\t\tif ( docFragment.childCount > 1 || selection.containsEntireContent( anchor.parent ) ) {\n\t\t\t\t\tconst codeBlock = writer.createElement( 'codeBlock', anchor.parent.getAttributes() );\n\t\t\t\t\twriter.append( docFragment, codeBlock );\n\n\t\t\t\t\tconst newDocumentFragment = writer.createDocumentFragment();\n\t\t\t\t\twriter.append( codeBlock, newDocumentFragment );\n\n\t\t\t\t\tevt.return = newDocumentFragment;\n\t\t\t\t}\n\n\t\t\t\t// \"f[oo]\"                          ->   <$text code=\"true\">oo</text>\n\t\t\t\telse {\n\t\t\t\t\tconst textNode = docFragment.getChild( 0 );\n\n\t\t\t\t\tif ( schema.checkAttribute( textNode, 'code' ) ) {\n\t\t\t\t\t\twriter.setAttribute( 'code', true, textNode );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst editor = this.editor;\n\t\tconst commands = editor.commands;\n\t\tconst indent = commands.get( 'indent' );\n\t\tconst outdent = commands.get( 'outdent' );\n\n\t\tif ( indent ) {\n\t\t\t// Priority is highest due to integration with `IndentList` command of `List` plugin.\n\t\t\t// If selection is in a code block we give priority to it. This way list item cannot be indented\n\t\t\t// but if we would give priority to indenting list item then user would have to indent list item\n\t\t\t// as much as possible and only then he could indent code block.\n\t\t\tindent.registerChildCommand( commands.get( 'indentCodeBlock' ), { priority: 'highest' } );\n\t\t}\n\n\t\tif ( outdent ) {\n\t\t\toutdent.registerChildCommand( commands.get( 'outdentCodeBlock' ) );\n\t\t}\n\n\t\t// Customize the response to the <kbd>Enter</kbd> and <kbd>Shift</kbd>+<kbd>Enter</kbd>\n\t\t// key press when the selection is in the code block. Upon enter key press we can either\n\t\t// leave the block if it's \"two or three enters\" in a row or create a new code block line, preserving\n\t\t// previous line's indentation.\n\t\tthis.listenTo( editor.editing.view.document, 'enter', ( evt, data ) => {\n\t\t\tconst positionParent = editor.model.document.selection.getLastPosition().parent;\n\n\t\t\tif ( !positionParent.is( 'element', 'codeBlock' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !leaveBlockStartOnEnter( editor, data.isSoft ) && !leaveBlockEndOnEnter( editor, data.isSoft ) ) {\n\t\t\t\tbreakLineOnEnter( editor );\n\t\t\t}\n\n\t\t\tdata.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: 'pre' } );\n\t}\n}\n\n// Normally, when the Enter (or Shift+Enter) key is pressed, a soft line break is to be added to the\n// code block. Let's try to follow the indentation of the previous line when possible, for instance:\n//\n//\t\t// Before pressing enter (or shift enter)\n//\t\t<codeBlock>\n//\t\t\"    foo()\"[]                   // Indent of 4 spaces.\n//\t\t</codeBlock>\n//\n//\t\t// After pressing:\n//\t\t<codeBlock>\n//\t\t\"    foo()\"                 // Indent of 4 spaces.\n//\t\t<softBreak></softBreak>     // A new soft break created by pressing enter.\n//\t\t\"    \"[]                    // Retain the indent of 4 spaces.\n//\t\t</codeBlock>\n//\n// @param {module:core/editor/editor~Editor} editor\nfunction breakLineOnEnter( editor ) {\n\tconst model = editor.model;\n\tconst modelDoc = model.document;\n\tconst lastSelectionPosition = modelDoc.selection.getLastPosition();\n\tconst node = lastSelectionPosition.nodeBefore || lastSelectionPosition.textNode;\n\tlet leadingWhiteSpaces;\n\n\t// Figure out the indentation (white space chars) at the beginning of the line.\n\tif ( node && node.is( '$text' ) ) {\n\t\tleadingWhiteSpaces = getLeadingWhiteSpaces( node );\n\t}\n\n\t// Keeping everything in a change block for a single undo step.\n\teditor.model.change( writer => {\n\t\teditor.execute( 'shiftEnter' );\n\n\t\t// If the line before being broken in two had some indentation, let's retain it\n\t\t// in the new line.\n\t\tif ( leadingWhiteSpaces ) {\n\t\t\twriter.insertText( leadingWhiteSpaces, modelDoc.selection.anchor );\n\t\t}\n\t} );\n}\n\n// Leave the code block when Enter (but NOT Shift+Enter) has been pressed twice at the beginning\n// of the code block:\n//\n//\t\t// Before:\n//\t\t<codeBlock>[]<softBreak></softBreak>foo</codeBlock>\n//\n//\t\t// After pressing:\n//\t\t<paragraph>[]</paragraph><codeBlock>foo</codeBlock>\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {Boolean} isSoftEnter When `true`, enter was pressed along with <kbd>Shift</kbd>.\n// @returns {Boolean} `true` when selection left the block. `false` if stayed.\nfunction leaveBlockStartOnEnter( editor, isSoftEnter ) {\n\tconst model = editor.model;\n\tconst modelDoc = model.document;\n\tconst view = editor.editing.view;\n\tconst lastSelectionPosition = modelDoc.selection.getLastPosition();\n\tconst nodeAfter = lastSelectionPosition.nodeAfter;\n\n\tif ( isSoftEnter || !modelDoc.selection.isCollapsed || !lastSelectionPosition.isAtStart ) {\n\t\treturn false;\n\t}\n\n\tif ( !isSoftBreakNode( nodeAfter ) ) {\n\t\treturn false;\n\t}\n\n\t// We're doing everything in a single change block to have a single undo step.\n\teditor.model.change( writer => {\n\t\t// \"Clone\" the <codeBlock> in the standard way.\n\t\teditor.execute( 'enter' );\n\n\t\t// The cloned block exists now before the original code block.\n\t\tconst newBlock = modelDoc.selection.anchor.parent.previousSibling;\n\n\t\t// Make the cloned <codeBlock> a regular <paragraph> (with clean attributes, so no language).\n\t\twriter.rename( newBlock, DEFAULT_ELEMENT );\n\t\twriter.setSelection( newBlock, 'in' );\n\t\teditor.model.schema.removeDisallowedAttributes( [ newBlock ], writer );\n\n\t\t// Remove the <softBreak> that originally followed the selection position.\n\t\twriter.remove( nodeAfter );\n\t} );\n\n\t// Eye candy.\n\tview.scrollToTheSelection();\n\n\treturn true;\n}\n\n// Leave the code block when Enter (but NOT Shift+Enter) has been pressed twice at the end\n// of the code block:\n//\n//\t\t// Before:\n//\t\t<codeBlock>foo[]</codeBlock>\n//\n//\t\t// After first press:\n//\t\t<codeBlock>foo<softBreak></softBreak>[]</codeBlock>\n//\n//\t\t// After second press:\n//\t\t<codeBlock>foo</codeBlock><paragraph>[]</paragraph>\n//\n// @param {module:core/editor/editor~Editor} editor\n// @param {Boolean} isSoftEnter When `true`, enter was pressed along with <kbd>Shift</kbd>.\n// @returns {Boolean} `true` when selection left the block. `false` if stayed.\nfunction leaveBlockEndOnEnter( editor, isSoftEnter ) {\n\tconst model = editor.model;\n\tconst modelDoc = model.document;\n\tconst view = editor.editing.view;\n\tconst lastSelectionPosition = modelDoc.selection.getLastPosition();\n\tconst nodeBefore = lastSelectionPosition.nodeBefore;\n\n\tlet emptyLineRangeToRemoveOnEnter;\n\n\tif ( isSoftEnter || !modelDoc.selection.isCollapsed || !lastSelectionPosition.isAtEnd || !nodeBefore || !nodeBefore.previousSibling ) {\n\t\treturn false;\n\t}\n\n\t// When the position is directly preceded by two soft breaks\n\t//\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak>[]</codeBlock>\n\t//\n\t// it creates the following range that will be cleaned up before leaving:\n\t//\n\t//\t\t<codeBlock>foo[<softBreak></softBreak><softBreak></softBreak>]</codeBlock>\n\t//\n\tif ( isSoftBreakNode( nodeBefore ) && isSoftBreakNode( nodeBefore.previousSibling ) ) {\n\t\temptyLineRangeToRemoveOnEnter = model.createRange(\n\t\t\tmodel.createPositionBefore( nodeBefore.previousSibling ), model.createPositionAfter( nodeBefore )\n\t\t);\n\t}\n\n\t// When there's some text before the position that is\n\t// preceded by two soft breaks and made purely of white–space characters\n\t//\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak>    []</codeBlock>\n\t//\n\t// it creates the following range to clean up before leaving:\n\t//\n\t//\t\t<codeBlock>foo[<softBreak></softBreak><softBreak></softBreak>    ]</codeBlock>\n\t//\n\telse if (\n\t\tisEmptyishTextNode( nodeBefore ) &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling ) &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling.previousSibling )\n\t) {\n\t\temptyLineRangeToRemoveOnEnter = model.createRange(\n\t\t\tmodel.createPositionBefore( nodeBefore.previousSibling.previousSibling ), model.createPositionAfter( nodeBefore )\n\t\t);\n\t}\n\n\t// When there's some text before the position that is made purely of white–space characters\n\t// and is preceded by some other text made purely of white–space characters\n\t//\n\t//\t\t<codeBlock>foo<softBreak></softBreak>    <softBreak></softBreak>    []</codeBlock>\n\t//\n\t// it creates the following range to clean up before leaving:\n\t//\n\t//\t\t<codeBlock>foo[<softBreak></softBreak>    <softBreak></softBreak>    ]</codeBlock>\n\t//\n\telse if (\n\t\tisEmptyishTextNode( nodeBefore ) &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling ) &&\n\t\tisEmptyishTextNode( nodeBefore.previousSibling.previousSibling ) &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling.previousSibling.previousSibling )\n\t) {\n\t\temptyLineRangeToRemoveOnEnter = model.createRange(\n\t\t\tmodel.createPositionBefore( nodeBefore.previousSibling.previousSibling.previousSibling ),\n\t\t\tmodel.createPositionAfter( nodeBefore )\n\t\t);\n\t}\n\n\t// Not leaving the block in the following cases:\n\t//\n\t//\t\t<codeBlock>    []</codeBlock>\n\t//\t\t<codeBlock>  a []</codeBlock>\n\t//\t\t<codeBlock>foo<softBreak></softBreak>[]</codeBlock>\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak>bar[]</codeBlock>\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak> a []</codeBlock>\n\t//\n\telse {\n\t\treturn false;\n\t}\n\n\t// We're doing everything in a single change block to have a single undo step.\n\teditor.model.change( writer => {\n\t\t// Remove the last <softBreak>s and all white space characters that followed them.\n\t\twriter.remove( emptyLineRangeToRemoveOnEnter );\n\n\t\t// \"Clone\" the <codeBlock> in the standard way.\n\t\teditor.execute( 'enter' );\n\n\t\tconst newBlock = modelDoc.selection.anchor.parent;\n\n\t\t// Make the cloned <codeBlock> a regular <paragraph> (with clean attributes, so no language).\n\t\twriter.rename( newBlock, DEFAULT_ELEMENT );\n\t\teditor.model.schema.removeDisallowedAttributes( [ newBlock ], writer );\n\t} );\n\n\t// Eye candy.\n\tview.scrollToTheSelection();\n\n\treturn true;\n}\n\nfunction isEmptyishTextNode( node ) {\n\treturn node && node.is( '$text' ) && !node.data.match( /\\S/ );\n}\n\nfunction isSoftBreakNode( node ) {\n\treturn node && node.is( 'element', 'softBreak' );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./codeblock.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblockui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Collection } from 'ckeditor5/src/utils';\nimport { Model, SplitButtonView, createDropdown, addListToDropdown } from 'ckeditor5/src/ui';\n\nimport { getNormalizedAndLocalizedLanguageDefinitions } from './utils';\n\nimport codeBlockIcon from '../theme/icons/codeblock.svg';\nimport '../theme/codeblock.css';\n\n/**\n * The code block UI plugin.\n *\n * Introduces the `'codeBlock'` dropdown.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class CodeBlockUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'CodeBlockUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst componentFactory = editor.ui.componentFactory;\n\t\tconst normalizedLanguageDefs = getNormalizedAndLocalizedLanguageDefinitions( editor );\n\n\t\tcomponentFactory.add( 'codeBlock', locale => {\n\t\t\tconst command = editor.commands.get( 'codeBlock' );\n\t\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\t\tconst splitButtonView = dropdownView.buttonView;\n\n\t\t\tsplitButtonView.set( {\n\t\t\t\tlabel: t( 'Insert code block' ),\n\t\t\t\ttooltip: true,\n\t\t\t\ticon: codeBlockIcon,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'isOn' ).to( command, 'value', value => !!value );\n\n\t\t\tsplitButtonView.on( 'execute', () => {\n\t\t\t\teditor.execute( 'codeBlock', {\n\t\t\t\t\tusePreviousLanguageChoice: true\n\t\t\t\t} );\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\tdropdownView.on( 'execute', evt => {\n\t\t\t\teditor.execute( 'codeBlock', {\n\t\t\t\t\tlanguage: evt.source._codeBlockLanguage,\n\t\t\t\t\tforceValue: true\n\t\t\t\t} );\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\tdropdownView.class = 'ck-code-block-dropdown';\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\taddListToDropdown( dropdownView, this._getLanguageListItemDefinitions( normalizedLanguageDefs ) );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * A helper returning a collection of the `codeBlock` dropdown items representing languages\n\t * available for the user to choose from.\n\t *\n\t * @private\n\t * @param {Array.<module:code-block/codeblock~CodeBlockLanguageDefinition>} normalizedLanguageDefs\n\t * @returns {Iterable.<module:ui/dropdown/utils~ListDropdownItemDefinition>}\n\t */\n\t_getLanguageListItemDefinitions( normalizedLanguageDefs ) {\n\t\tconst editor = this.editor;\n\t\tconst command = editor.commands.get( 'codeBlock' );\n\t\tconst itemDefinitions = new Collection();\n\n\t\tfor ( const languageDef of normalizedLanguageDefs ) {\n\t\t\tconst definition = {\n\t\t\t\ttype: 'button',\n\t\t\t\tmodel: new Model( {\n\t\t\t\t\t_codeBlockLanguage: languageDef.language,\n\t\t\t\t\tlabel: languageDef.label,\n\t\t\t\t\twithText: true\n\t\t\t\t} )\n\t\t\t};\n\n\t\t\tdefinition.model.bind( 'isOn' ).to( command, 'value', value => {\n\t\t\t\treturn value === definition.model._codeBlockLanguage;\n\t\t\t} );\n\n\t\t\titemDefinitions.add( definition );\n\t\t}\n\n\t\treturn itemDefinitions;\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M12.87 12.61a.75.75 0 0 1-.089.976l-.085.07-3.154 2.254 3.412 2.414a.75.75 0 0 1 .237.95l-.057.095a.75.75 0 0 1-.95.237l-.096-.058-4.272-3.022-.003-1.223 4.01-2.867a.75.75 0 0 1 1.047.174zm2.795-.231.095.057 4.011 2.867-.003 1.223-4.272 3.022-.095.058a.75.75 0 0 1-.88-.151l-.07-.086-.058-.095a.75.75 0 0 1 .15-.88l.087-.07 3.412-2.414-3.154-2.253-.085-.071a.75.75 0 0 1 .862-1.207zM16 0a2 2 0 0 1 2 2v9.354l-.663-.492-.837-.001V2a.5.5 0 0 0-.5-.5H2a.5.5 0 0 0-.5.5v15a.5.5 0 0 0 .5.5h3.118L7.156 19H2a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h14zM5.009 15l.003 1H3v-1h2.009zm2.188-2-1.471 1H5v-1h2.197zM10 11v.095L8.668 12H7v-1h3zm4-2v1H7V9h7zm0-2v1H7V7h7zm-4-2v1H5V5h5zM6 3v1H3V3h3z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mentioncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { CKEditorError, toMap } from 'ckeditor5/src/utils';\n\nimport { _addMentionAttributes } from './mentionediting';\n\n/**\n * The mention command.\n *\n * The command is registered by {@link module:mention/mentionediting~MentionEditing} as `'mention'`.\n *\n * To insert a mention onto a range, execute the command and specify a mention object with a range to replace:\n *\n *\t\tconst focus = editor.model.document.selection.focus;\n *\n *\t\t// It will replace one character before the selection focus with the '#1234' text\n *\t\t// with the mention attribute filled with passed attributes.\n *\t\teditor.execute( 'mention', {\n *\t\t\tmarker: '#',\n *\t\t\tmention: {\n *\t\t\t\tid: '#1234',\n *\t\t\t\tname: 'Foo',\n *\t\t\t\ttitle: 'Big Foo'\n *\t\t\t},\n *\t\t\trange: editor.model.createRange( focus.getShiftedBy( -1 ), focus )\n *\t\t} );\n *\n *\t\t// It will replace one character before the selection focus with the 'The \"Big Foo\"' text\n *\t\t// with the mention attribute filled with passed attributes.\n *\t\teditor.execute( 'mention', {\n *\t\t\tmarker: '#',\n *\t\t\tmention: {\n *\t\t\t\tid: '#1234',\n *\t\t\t\tname: 'Foo',\n *\t\t\t\ttitle: 'Big Foo'\n *\t\t\t},\n *\t\t\ttext: 'The \"Big Foo\"',\n *\t\t\trange: editor.model.createRange( focus.getShiftedBy( -1 ), focus )\n *\t\t} );\n *\n * @extends module:core/command~Command\n */\nexport default class MentionCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.isEnabled = model.schema.checkAttributeInSelection( doc.selection, 'mention' );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @param {Object} [options] Options for the executed command.\n\t * @param {Object|String} options.mention The mention object to insert. When a string is passed, it will be used to create a plain\n\t * object with the name attribute that equals the passed string.\n\t * @param {String} options.marker The marker character (e.g. `'@'`).\n\t * @param {String} [options.text] The text of the inserted mention. Defaults to the full mention string composed from `marker` and\n\t * `mention` string or `mention.id` if an object is passed.\n\t * @param {module:engine/model/range~Range} [options.range] The range to replace.\n\t * Note that the replaced range might be shorter than the inserted text with the mention attribute.\n\t * @fires execute\n\t */\n\texecute( options ) {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst selection = document.selection;\n\n\t\tconst mentionData = typeof options.mention == 'string' ? { id: options.mention } : options.mention;\n\t\tconst mentionID = mentionData.id;\n\n\t\tconst range = options.range || selection.getFirstRange();\n\n\t\tconst mentionText = options.text || mentionID;\n\n\t\tconst mention = _addMentionAttributes( { _text: mentionText, id: mentionID }, mentionData );\n\n\t\tif ( options.marker.length != 1 ) {\n\t\t\t/**\n\t\t\t * The marker must be a single character.\n\t\t\t *\n\t\t\t * Correct markers: `'@'`, `'#'`.\n\t\t\t *\n\t\t\t * Incorrect markers: `'$$'`, `'[@'`.\n\t\t\t *\n\t\t\t * See {@link module:mention/mention~MentionConfig}.\n\t\t\t *\n\t\t\t * @error mentioncommand-incorrect-marker\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'mentioncommand-incorrect-marker',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tif ( mentionID.charAt( 0 ) != options.marker ) {\n\t\t\t/**\n\t\t\t * The feed item ID must start with the marker character.\n\t\t\t *\n\t\t\t * Correct mention feed setting:\n\t\t\t *\n\t\t\t *\t\tmentions: [\n\t\t\t *\t\t\t{\n\t\t\t *\t\t\t\tmarker: '@',\n\t\t\t *\t\t\t\tfeed: [ '@Ann', '@Barney', ... ]\n\t\t\t *\t\t\t}\n\t\t\t *\t\t]\n\t\t\t *\n\t\t\t * Incorrect mention feed setting:\n\t\t\t *\n\t\t\t *\t\tmentions: [\n\t\t\t *\t\t\t{\n\t\t\t *\t\t\t\tmarker: '@',\n\t\t\t *\t\t\t\tfeed: [ 'Ann', 'Barney', ... ]\n\t\t\t *\t\t\t}\n\t\t\t *\t\t]\n\t\t\t *\n\t\t\t * See {@link module:mention/mention~MentionConfig}.\n\t\t\t *\n\t\t\t * @error mentioncommand-incorrect-id\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'mentioncommand-incorrect-id',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tconst currentAttributes = toMap( selection.getAttributes() );\n\t\t\tconst attributesWithMention = new Map( currentAttributes.entries() );\n\n\t\t\tattributesWithMention.set( 'mention', mention );\n\n\t\t\t// Replace a range with the text with a mention.\n\t\t\tmodel.insertContent( writer.createText( mentionText, attributesWithMention ), range );\n\t\t\tmodel.insertContent( writer.createText( ' ', currentAttributes ), range.start.getShiftedBy( mentionText.length ) );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mentionediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { uid } from 'ckeditor5/src/utils';\n\nimport MentionCommand from './mentioncommand';\n\n/**\n * The mention editing feature.\n *\n * It introduces the {@link module:mention/mentioncommand~MentionCommand command} and the `mention`\n * attribute in the {@link module:engine/model/model~Model model} which renders in the {@link module:engine/view/view view}\n * as a `<span class=\"mention\" data-mention=\"@mention\">`.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class MentionEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'MentionEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst doc = model.document;\n\n\t\t// Allow the mention attribute on all text nodes.\n\t\tmodel.schema.extend( '$text', { allowAttributes: 'mention' } );\n\n\t\t// Upcast conversion.\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tkey: 'data-mention',\n\t\t\t\tclasses: 'mention'\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'mention',\n\t\t\t\tvalue: viewElement => _toMentionAttribute( viewElement )\n\t\t\t}\n\t\t} );\n\n\t\t// Downcast conversion.\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: 'mention',\n\t\t\tview: createViewMentionElement\n\t\t} );\n\t\teditor.conversion.for( 'downcast' ).add( preventPartialMentionDowncast );\n\n\t\tdoc.registerPostFixer( writer => removePartialMentionPostFixer( writer, doc, model.schema ) );\n\t\tdoc.registerPostFixer( writer => extendAttributeOnMentionPostFixer( writer, doc ) );\n\t\tdoc.registerPostFixer( writer => selectionMentionAttributePostFixer( writer, doc ) );\n\n\t\teditor.commands.add( 'mention', new MentionCommand( editor ) );\n\t}\n}\n\nexport function _addMentionAttributes( baseMentionData, data ) {\n\treturn Object.assign( { uid: uid() }, baseMentionData, data || {} );\n}\n\n/**\n * Creates a mention attribute value from the provided view element and optional data.\n *\n * This function is exposed as\n * {@link module:mention/mention~Mention#toMentionAttribute `editor.plugins.get( 'Mention' ).toMentionAttribute()`}.\n *\n * @protected\n * @param {module:engine/view/element~Element} viewElementOrMention\n * @param {String|Object} [data] Mention data to be extended.\n * @returns {module:mention/mention~MentionAttribute}\n */\nexport function _toMentionAttribute( viewElementOrMention, data ) {\n\tconst dataMention = viewElementOrMention.getAttribute( 'data-mention' );\n\n\tconst textNode = viewElementOrMention.getChild( 0 );\n\n\t// Do not convert empty mentions.\n\tif ( !textNode ) {\n\t\treturn;\n\t}\n\n\tconst baseMentionData = {\n\t\tid: dataMention,\n\t\t_text: textNode.data\n\t};\n\n\treturn _addMentionAttributes( baseMentionData, data );\n}\n\n// A converter that blocks partial mention from being converted.\n//\n// This converter is registered with 'highest' priority in order to consume mention attribute before it is converted by\n// any other converters. This converter only consumes partial mention - those whose `_text` attribute is not equal to text with mention\n// attribute. This may happen when copying part of mention text.\n//\n// @param {module:engine/conversion/dwoncastdispatcher~DowncastDispatcher}\nfunction preventPartialMentionDowncast( dispatcher ) {\n\tdispatcher.on( 'attribute:mention', ( evt, data, conversionApi ) => {\n\t\tconst mention = data.attributeNewValue;\n\n\t\tif ( !data.item.is( '$textProxy' ) || !mention ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst start = data.range.start;\n\t\tconst textNode = start.textNode || start.nodeAfter;\n\n\t\tif ( textNode.data != mention._text ) {\n\t\t\t// Consume item to prevent partial mention conversion.\n\t\t\tconversionApi.consumable.consume( data.item, evt.name );\n\t\t}\n\t}, { priority: 'highest' } );\n}\n\n// Creates a mention element from the mention data.\n//\n// @param {Object} mention\n// @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi\n// @returns {module:engine/view/attributeelement~AttributeElement}\nfunction createViewMentionElement( mention, { writer } ) {\n\tif ( !mention ) {\n\t\treturn;\n\t}\n\n\tconst attributes = {\n\t\tclass: 'mention',\n\t\t'data-mention': mention.id\n\t};\n\n\tconst options = {\n\t\tid: mention.uid,\n\t\tpriority: 20\n\t};\n\n\treturn writer.createAttributeElement( 'span', attributes, options );\n}\n\n// Model post-fixer that disallows typing with selection when the selection is placed after the text node with the mention attribute or\n// before a text node with mention attribute.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/document~Document} doc\n// @returns {Boolean} Returns `true` if the selection was fixed.\nfunction selectionMentionAttributePostFixer( writer, doc ) {\n\tconst selection = doc.selection;\n\tconst focus = selection.focus;\n\n\tif ( selection.isCollapsed && selection.hasAttribute( 'mention' ) && shouldNotTypeWithMentionAt( focus ) ) {\n\t\twriter.removeSelectionAttribute( 'mention' );\n\n\t\treturn true;\n\t}\n}\n\n// Helper function to detect if mention attribute should be removed from selection.\n// This check makes only sense if the selection has mention attribute.\n//\n// The mention attribute should be removed from a selection when selection focus is placed:\n// a) after a text node\n// b) the position is at parents start - the selection will set attributes from node after.\nfunction shouldNotTypeWithMentionAt( position ) {\n\tconst isAtStart = position.isAtStart;\n\tconst isAfterAMention = position.nodeBefore && position.nodeBefore.is( '$text' );\n\n\treturn isAfterAMention || isAtStart;\n}\n\n// Model post-fixer that removes the mention attribute from the modified text node.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/document~Document} doc\n// @returns {Boolean} Returns `true` if the selection was fixed.\nfunction removePartialMentionPostFixer( writer, doc, schema ) {\n\tconst changes = doc.differ.getChanges();\n\n\tlet wasChanged = false;\n\n\tfor ( const change of changes ) {\n\t\t// Checks the text node on the current position.\n\t\tconst position = change.position;\n\n\t\tif ( change.name == '$text' ) {\n\t\t\tconst nodeAfterInsertedTextNode = position.textNode && position.textNode.nextSibling;\n\n\t\t\t// Checks the text node where the change occurred.\n\t\t\twasChanged = checkAndFix( position.textNode, writer ) || wasChanged;\n\n\t\t\t// Occurs on paste inside a text node with mention.\n\t\t\twasChanged = checkAndFix( nodeAfterInsertedTextNode, writer ) || wasChanged;\n\t\t\twasChanged = checkAndFix( position.nodeBefore, writer ) || wasChanged;\n\t\t\twasChanged = checkAndFix( position.nodeAfter, writer ) || wasChanged;\n\t\t}\n\n\t\t// Checks text nodes in inserted elements (might occur when splitting a paragraph or pasting content inside text with mention).\n\t\tif ( change.name != '$text' && change.type == 'insert' ) {\n\t\t\tconst insertedNode = position.nodeAfter;\n\n\t\t\tfor ( const item of writer.createRangeIn( insertedNode ).getItems() ) {\n\t\t\t\twasChanged = checkAndFix( item, writer ) || wasChanged;\n\t\t\t}\n\t\t}\n\n\t\t// Inserted inline elements might break mention.\n\t\tif ( change.type == 'insert' && schema.isInline( change.name ) ) {\n\t\t\tconst nodeAfterInserted = position.nodeAfter && position.nodeAfter.nextSibling;\n\n\t\t\twasChanged = checkAndFix( position.nodeBefore, writer ) || wasChanged;\n\t\t\twasChanged = checkAndFix( nodeAfterInserted, writer ) || wasChanged;\n\t\t}\n\t}\n\n\treturn wasChanged;\n}\n\n// This post-fixer will extend the attribute applied on the part of the mention so the whole text node of the mention will have\n// the added attribute.\n//\n// @param {module:engine/model/writer~Writer} writer\n// @param {module:engine/model/document~Document} doc\n// @returns {Boolean} Returns `true` if the selection was fixed.\nfunction extendAttributeOnMentionPostFixer( writer, doc ) {\n\tconst changes = doc.differ.getChanges();\n\n\tlet wasChanged = false;\n\n\tfor ( const change of changes ) {\n\t\tif ( change.type === 'attribute' && change.attributeKey != 'mention' ) {\n\t\t\t// Checks the node on the left side of the range...\n\t\t\tconst nodeBefore = change.range.start.nodeBefore;\n\t\t\t// ... and on the right side of the range.\n\t\t\tconst nodeAfter = change.range.end.nodeAfter;\n\n\t\t\tfor ( const node of [ nodeBefore, nodeAfter ] ) {\n\t\t\t\tif ( isBrokenMentionNode( node ) && node.getAttribute( change.attributeKey ) != change.attributeNewValue ) {\n\t\t\t\t\twriter.setAttribute( change.attributeKey, change.attributeNewValue, node );\n\n\t\t\t\t\twasChanged = true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn wasChanged;\n}\n\n// Checks if a node has a correct mention attribute if present.\n// Returns `true` if the node is text and has a mention attribute whose text does not match the expected mention text.\n//\n// @param {module:engine/model/node~Node} node The node to check.\n// @returns {Boolean}\nfunction isBrokenMentionNode( node ) {\n\tif ( !node || !( node.is( '$text' ) || node.is( '$textProxy' ) ) || !node.hasAttribute( 'mention' ) ) {\n\t\treturn false;\n\t}\n\n\tconst text = node.data;\n\tconst mention = node.getAttribute( 'mention' );\n\n\tconst expectedText = mention._text;\n\n\treturn text != expectedText;\n}\n\n// Fixes a mention on a text node if it needs a fix.\n//\n// @param {module:engine/model/text~Text} textNode\n// @param {module:engine/model/writer~Writer} writer\n// @returns {Boolean}\nfunction checkAndFix( textNode, writer ) {\n\tif ( isBrokenMentionNode( textNode ) ) {\n\t\twriter.removeAttribute( 'mention', textNode );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./mentionui.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/ui/mentionsview\n */\n\nimport { ListView } from 'ckeditor5/src/ui';\nimport { Rect } from 'ckeditor5/src/utils';\n\nimport '../../theme/mentionui.css';\n\n/**\n * The mention ui view.\n *\n * @extends module:ui/list/listview~ListView\n */\nexport default class MentionsView extends ListView {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale ) {\n\t\tsuper( locale );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-mentions'\n\t\t\t\t],\n\n\t\t\t\ttabindex: '-1'\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * {@link #select Selects} the first item.\n\t */\n\tselectFirst() {\n\t\tthis.select( 0 );\n\t}\n\n\t/**\n\t * Selects next item to the currently {@link #select selected}.\n\t *\n\t * If the last item is already selected, it will select the first item.\n\t */\n\tselectNext() {\n\t\tconst item = this.selected;\n\t\tconst index = this.items.getIndex( item );\n\n\t\tthis.select( index + 1 );\n\t}\n\n\t/**\n\t * Selects previous item to the currently {@link #select selected}.\n\t *\n\t * If the first item is already selected, it will select the last item.\n\t */\n\tselectPrevious() {\n\t\tconst item = this.selected;\n\t\tconst index = this.items.getIndex( item );\n\n\t\tthis.select( index - 1 );\n\t}\n\n\t/**\n\t * Marks item at a given index as selected.\n\t *\n\t * Handles selection cycling when passed index is out of bounds:\n\t * - if the index is lower than 0, it will select the last item,\n\t * - if the index is higher than the last item index, it will select the first item.\n\t *\n\t * @param {Number} index Index of an item to be marked as selected.\n\t */\n\tselect( index ) {\n\t\tlet indexToGet = 0;\n\n\t\tif ( index > 0 && index < this.items.length ) {\n\t\t\tindexToGet = index;\n\t\t} else if ( index < 0 ) {\n\t\t\tindexToGet = this.items.length - 1;\n\t\t}\n\n\t\tconst item = this.items.get( indexToGet );\n\n\t\t// Return early if item is already selected.\n\t\tif ( this.selected === item ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Remove highlight of previously selected item.\n\t\tif ( this.selected ) {\n\t\t\tthis.selected.removeHighlight();\n\t\t}\n\n\t\titem.highlight();\n\t\tthis.selected = item;\n\n\t\t// Scroll the mentions view to the selected element.\n\t\tif ( !this._isItemVisibleInScrolledArea( item ) ) {\n\t\t\tthis.element.scrollTop = item.element.offsetTop;\n\t\t}\n\t}\n\n\t/**\n\t * Triggers the `execute` event on the {@link #select selected} item.\n\t */\n\texecuteSelected() {\n\t\tthis.selected.fire( 'execute' );\n\t}\n\n\t// Checks if an item is visible in the scrollable area.\n\t//\n\t// The item is considered visible when:\n\t// - its top boundary is inside the scrollable rect\n\t// - its bottom boundary is inside the scrollable rect (the whole item must be visible)\n\t_isItemVisibleInScrolledArea( item ) {\n\t\treturn new Rect( this.element ).contains( new Rect( item.element ) );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/ui/domwrapperview\n */\n\nimport { View } from 'ckeditor5/src/ui';\n\n/**\n * This class wraps DOM element as a CKEditor5 UI View.\n *\n * It allows to render any DOM element and use it in mentions list.\n *\n * @extends {module:ui/view~View}\n */\nexport default class DomWrapperView extends View {\n\t/**\n\t * Creates an instance of {@link module:mention/ui/domwrapperview~DomWrapperView} class.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param {module:utils/locale~Locale} [locale] The localization services instance.\n\t * @param {Element} domElement\n\t */\n\tconstructor( locale, domElement ) {\n\t\tsuper( locale );\n\n\t\t// Disable template rendering on this view.\n\t\tthis.template = false;\n\n\t\t/**\n\t\t * The DOM element for which wrapper was created.\n\t\t *\n\t\t * @type {Element}\n\t\t */\n\t\tthis.domElement = domElement;\n\n\t\t// Render dom wrapper as a button.\n\t\tthis.domElement.classList.add( 'ck-button' );\n\n\t\t/**\n\t\t * Controls whether the dom wrapper view is \"on\". This is in line with {@link module:ui/button/button~Button#isOn} property.\n\t\t *\n\t\t * @observable\n\t\t * @default true\n\t\t * @member {Boolean} #isOn\n\t\t */\n\t\tthis.set( 'isOn', false );\n\n\t\t// Handle isOn state as in buttons.\n\t\tthis.on( 'change:isOn', ( evt, name, isOn ) => {\n\t\t\tif ( isOn ) {\n\t\t\t\tthis.domElement.classList.add( 'ck-on' );\n\t\t\t\tthis.domElement.classList.remove( 'ck-off' );\n\t\t\t} else {\n\t\t\t\tthis.domElement.classList.add( 'ck-off' );\n\t\t\t\tthis.domElement.classList.remove( 'ck-on' );\n\t\t\t}\n\t\t} );\n\n\t\t// Pass click event as execute event.\n\t\tthis.listenTo( this.domElement, 'click', () => {\n\t\t\tthis.fire( 'execute' );\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trender() {\n\t\tsuper.render();\n\n\t\tthis.element = this.domElement;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/ui/mentionlistitemview\n */\n\nimport { ListItemView } from 'ckeditor5/src/ui';\n\nexport default class MentionListItemView extends ListItemView {\n\thighlight() {\n\t\tconst child = this.children.first;\n\n\t\tchild.isOn = true;\n\t}\n\n\tremoveHighlight() {\n\t\tconst child = this.children.first;\n\n\t\tchild.isOn = false;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mentionui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView, ContextualBalloon, clickOutsideHandler } from 'ckeditor5/src/ui';\nimport { Collection, keyCodes, env, Rect, CKEditorError, logWarning } from 'ckeditor5/src/utils';\nimport { TextWatcher } from 'ckeditor5/src/typing';\n\nimport { debounce } from 'lodash-es';\n\nimport MentionsView from './ui/mentionsview';\nimport DomWrapperView from './ui/domwrapperview';\nimport MentionListItemView from './ui/mentionlistitemview';\n\nconst VERTICAL_SPACING = 3;\n\n// The key codes that mention UI handles when it is open (without commit keys).\nconst defaultHandledKeyCodes = [\n\tkeyCodes.arrowup,\n\tkeyCodes.arrowdown,\n\tkeyCodes.esc\n];\n\n// Dropdown commit key codes.\nconst defaultCommitKeyCodes = [\n\tkeyCodes.enter,\n\tkeyCodes.tab\n];\n\n/**\n * The mention UI feature.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class MentionUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'MentionUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ContextualBalloon ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The mention view.\n\t\t *\n\t\t * @type {module:mention/ui/mentionsview~MentionsView}\n\t\t * @private\n\t\t */\n\t\tthis._mentionsView = this._createMentionView();\n\n\t\t/**\n\t\t * Stores mention feeds configurations.\n\t\t *\n\t\t * @type {Map<String, Object>}\n\t\t * @private\n\t\t */\n\t\tthis._mentionsConfigurations = new Map();\n\n\t\t/**\n\t\t * Debounced feed requester. It uses `lodash#debounce` method to delay function call.\n\t\t *\n\t\t * @private\n\t\t * @param {String} marker\n\t\t * @param {String} feedText\n\t\t * @method\n\t\t */\n\t\tthis._requestFeedDebounced = debounce( this._requestFeed, 100 );\n\n\t\teditor.config.define( 'mention', { feeds: [] } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\tconst commitKeys = editor.config.get( 'mention.commitKeys' ) || defaultCommitKeyCodes;\n\t\tconst handledKeyCodes = defaultHandledKeyCodes.concat( commitKeys );\n\n\t\t/**\n\t\t * The contextual balloon plugin instance.\n\t\t *\n\t\t * @private\n\t\t * @member {module:ui/panel/balloon/contextualballoon~ContextualBalloon}\n\t\t */\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\t// Key listener that handles navigation in mention view.\n\t\teditor.editing.view.document.on( 'keydown', ( evt, data ) => {\n\t\t\tif ( isHandledKey( data.keyCode ) && this._isUIVisible ) {\n\t\t\t\t// do it before preventing default since space should be inserted\n\t\t\t\tif (data.keyCode == keyCodes.space) {\n\t\t\t\t\tthis._hideUIAndRemoveMarker();\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop(); // Required for Enter key overriding.\n\n\t\t\t\tif ( data.keyCode == keyCodes.arrowdown ) {\n\t\t\t\t\tthis._mentionsView.selectNext();\n\t\t\t\t}\n\n\t\t\t\tif ( data.keyCode == keyCodes.arrowup ) {\n\t\t\t\t\tthis._mentionsView.selectPrevious();\n\t\t\t\t}\n\n\t\t\t\tif ( commitKeys.includes( data.keyCode ) ) {\n\t\t\t\t\tthis._mentionsView.executeSelected();\n\t\t\t\t}\n\n\t\t\t\tif ( data.keyCode == keyCodes.esc ) {\n\t\t\t\t\tthis._hideUIAndRemoveMarker();\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'highest' } ); // Required to override the Enter key.\n\n\t\t// Close the dropdown upon clicking outside of the plugin UI.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this._mentionsView,\n\t\t\tactivator: () => this._isUIVisible,\n\t\t\tcontextElements: [ this._balloon.view.element ],\n\t\t\tcallback: () => this._hideUIAndRemoveMarker()\n\t\t} );\n\n\t\tconst feeds = editor.config.get( 'mention.feeds' );\n\n\t\tfor ( const mentionDescription of feeds ) {\n\t\t\tconst feed = mentionDescription.feed;\n\n\t\t\tconst marker = mentionDescription.marker;\n\n\t\t\tif ( !isValidMentionMarker( marker ) ) {\n\t\t\t\t/**\n\t\t\t\t * The marker must be a single character.\n\t\t\t\t *\n\t\t\t\t * Correct markers: `'@'`, `'#'`.\n\t\t\t\t *\n\t\t\t\t * Incorrect markers: `'$$'`, `'[@'`.\n\t\t\t\t *\n\t\t\t\t * See {@link module:mention/mention~MentionConfig}.\n\t\t\t\t *\n\t\t\t\t * @error mentionconfig-incorrect-marker\n\t\t\t\t * @param {String} marker Configured marker\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'mentionconfig-incorrect-marker', null, { marker } );\n\t\t\t}\n\n\t\t\tconst feedCallback = typeof feed == 'function' ? feed.bind( this.editor ) : createFeedCallback( feed );\n\t\t\tconst itemRenderer = mentionDescription.itemRenderer;\n\t\t\tconst definition = { marker, feedCallback, itemRenderer };\n\n\t\t\tthis._mentionsConfigurations.set( marker, definition );\n\t\t}\n\n\t\tthis._setupTextWatcher( feeds );\n\t\tthis.listenTo( editor, 'change:isReadOnly', () => {\n\t\t\tthis._hideUIAndRemoveMarker();\n\t\t} );\n\t\tthis.on( 'requestFeed:response', ( evt, data ) => this._handleFeedResponse( data ) );\n\t\tthis.on( 'requestFeed:error', () => this._hideUIAndRemoveMarker() );\n\n\t\t// Checks if a given key code is handled by the mention UI.\n\t\t//\n\t\t// @param {Number}\n\t\t// @returns {Boolean}\n\t\tfunction isHandledKey( keyCode ) {\n\t\t\treturn handledKeyCodes.includes( keyCode );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tthis._mentionsView.destroy();\n\t}\n\n\t/**\n\t * Returns true when {@link #_mentionsView} is in the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon} and it is\n\t * currently visible.\n\t *\n\t * @readonly\n\t * @protected\n\t * @type {Boolean}\n\t */\n\tget _isUIVisible() {\n\t\treturn this._balloon.visibleView === this._mentionsView;\n\t}\n\n\t/**\n\t * Creates the {@link #_mentionsView}.\n\t *\n\t * @private\n\t * @returns {module:mention/ui/mentionsview~MentionsView}\n\t */\n\t_createMentionView() {\n\t\tconst locale = this.editor.locale;\n\n\t\tconst mentionsView = new MentionsView( locale );\n\n\t\tthis._items = new Collection();\n\n\t\tmentionsView.items.bindTo( this._items ).using( data => {\n\t\t\tconst { item, marker } = data;\n\n\t\t\t// Set to 10 by default for backwards compatibility. See: #10479\n\t\t\tconst dropdownLimit = this.editor.config.get( 'mention.dropdownLimit' ) || 10;\n\n\t\t\tif ( mentionsView.items.length >= dropdownLimit ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst listItemView = new MentionListItemView( locale );\n\n\t\t\tconst view = this._renderItem( item, marker );\n\t\t\tview.delegate( 'execute' ).to( listItemView );\n\n\t\t\tlistItemView.children.add( view );\n\t\t\tlistItemView.item = item;\n\t\t\tlistItemView.marker = marker;\n\n\t\t\tlistItemView.on( 'execute', () => {\n\t\t\t\tmentionsView.fire( 'execute', {\n\t\t\t\t\titem,\n\t\t\t\t\tmarker\n\t\t\t\t} );\n\t\t\t} );\n\n\t\t\treturn listItemView;\n\t\t} );\n\n\t\tmentionsView.on( 'execute', ( evt, data ) => {\n\t\t\tconst editor = this.editor;\n\t\t\tconst model = editor.model;\n\n\t\t\tconst item = data.item;\n\t\t\tconst marker = data.marker;\n\n\t\t\tconst mentionMarker = editor.model.markers.get( 'mention' );\n\n\t\t\t// Create a range on matched text.\n\t\t\tconst end = model.createPositionAt( model.document.selection.focus );\n\t\t\tconst start = model.createPositionAt( mentionMarker.getStart() );\n\t\t\tconst range = model.createRange( start, end );\n\n\t\t\tthis._hideUIAndRemoveMarker();\n\n\t\t\teditor.execute( 'mention', {\n\t\t\t\tmention: item,\n\t\t\t\ttext: item.text,\n\t\t\t\tmarker,\n\t\t\t\trange\n\t\t\t} );\n\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn mentionsView;\n\t}\n\n\t/**\n\t * Returns item renderer for the marker.\n\t *\n\t * @private\n\t * @param {String} marker\n\t * @returns {Function|null}\n\t */\n\t_getItemRenderer( marker ) {\n\t\tconst { itemRenderer } = this._mentionsConfigurations.get( marker );\n\n\t\treturn itemRenderer;\n\t}\n\n\t/**\n\t * Requests a feed from a configured callbacks.\n\t *\n\t * @private\n\t * @fires module:mention/mentionui~MentionUI#event:requestFeed:response\n\t * @fires module:mention/mentionui~MentionUI#event:requestFeed:discarded\n\t * @fires module:mention/mentionui~MentionUI#event:requestFeed:error\n\t * @param {String} marker\n\t * @param {String} feedText\n\t */\n\t_requestFeed( marker, feedText ) {\n\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Feed]%c Requesting for', 'color: blue', 'color: black', `\"${ feedText }\"` );\n\n\t\t// Store the last requested feed - it is used to discard any out-of order requests.\n\t\tthis._lastRequested = feedText;\n\n\t\tconst { feedCallback } = this._mentionsConfigurations.get( marker );\n\t\tconst feedResponse = feedCallback( feedText );\n\n\t\tconst isAsynchronous = feedResponse instanceof Promise;\n\n\t\t// For synchronous feeds (e.g. callbacks, arrays) fire the response event immediately.\n\t\tif ( !isAsynchronous ) {\n\t\t\t/**\n\t\t\t * Fired whenever requested feed has a response.\n\t\t\t *\n\t\t\t * @event requestFeed:response\n\t\t\t * @param {Object} data Event data.\n\t\t\t * @param {Array.<module:mention/mention~MentionFeedItem>} data.feed Autocomplete items.\n\t\t\t * @param {String} data.marker The character which triggers autocompletion for mention.\n\t\t\t * @param {String} data.feedText The text for which feed items were requested.\n\t\t\t */\n\t\t\tthis.fire( 'requestFeed:response', { feed: feedResponse, marker, feedText } );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Handle the asynchronous responses.\n\t\tfeedResponse\n\t\t\t.then( response => {\n\t\t\t\t// Check the feed text of this response with the last requested one so either:\n\t\t\t\tif ( this._lastRequested == feedText ) {\n\t\t\t\t\t// It is the same and fire the response event.\n\t\t\t\t\tthis.fire( 'requestFeed:response', { feed: response, marker, feedText } );\n\t\t\t\t} else {\n\t\t\t\t\t// It is different - most probably out-of-order one, so fire the discarded event.\n\t\t\t\t\t/**\n\t\t\t\t\t * Fired whenever the requested feed was discarded. This happens when the response was delayed and\n\t\t\t\t\t * other feed was already requested.\n\t\t\t\t\t *\n\t\t\t\t\t * @event requestFeed:discarded\n\t\t\t\t\t * @param {Object} data Event data.\n\t\t\t\t\t * @param {Array.<module:mention/mention~MentionFeedItem>} data.feed Autocomplete items.\n\t\t\t\t\t * @param {String} data.marker The character which triggers autocompletion for mention.\n\t\t\t\t\t * @param {String} data.feedText The text for which feed items were requested.\n\t\t\t\t\t */\n\t\t\t\t\tthis.fire( 'requestFeed:discarded', { feed: response, marker, feedText } );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t.catch( error => {\n\t\t\t\t/**\n\t\t\t\t * Fired whenever the requested {@link module:mention/mention~MentionFeed#feed} promise fails with error.\n\t\t\t\t *\n\t\t\t\t * @event requestFeed:error\n\t\t\t\t * @param {Object} data Event data.\n\t\t\t\t * @param {Error} data.error The error that was caught.\n\t\t\t\t */\n\t\t\t\tthis.fire( 'requestFeed:error', { error } );\n\n\t\t\t\t/**\n\t\t\t\t * The callback used for obtaining mention autocomplete feed thrown and error and the mention UI was hidden or\n\t\t\t\t * not displayed at all.\n\t\t\t\t *\n\t\t\t\t * @error mention-feed-callback-error\n\t\t\t\t * @param {String} marker Configured marker for which error occurred.\n\t\t\t\t */\n\t\t\t\tlogWarning( 'mention-feed-callback-error', { marker } );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Registers a text watcher for the marker.\n\t *\n\t * @private\n\t * @param {Array.<Object>} feeds Feeds of mention plugin configured in editor\n\t * @returns {module:typing/textwatcher~TextWatcher}\n\t */\n\t_setupTextWatcher( feeds ) {\n\t\tconst editor = this.editor;\n\n\t\tconst feedsWithPattern = feeds.map( feed => ( {\n\t\t\t...feed,\n\t\t\tpattern: createRegExp( feed.marker, feed.minimumCharacters || 0 )\n\t\t} ) );\n\n\t\tconst watcher = new TextWatcher( editor.model, createTestCallback( feedsWithPattern ) );\n\n// use \"matched:data\" instead of just \"matched\" so that mention is not triggered on mere click\n\t\twatcher.on( 'matched:data', ( evt, data ) => {\n\t\t\tconst markerDefinition = getLastValidMarkerInText( feedsWithPattern, data.text );\n\t\t\tconst selection = editor.model.document.selection;\n\t\t\tconst focus = selection.focus;\n\t\t\tconst markerPosition = editor.model.createPositionAt( focus.parent, markerDefinition.position );\n\n\t\t\tif ( isPositionInExistingMention( focus ) || isMarkerInExistingMention( markerPosition ) ) {\n\t\t\t\tthis._hideUIAndRemoveMarker();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst feedText = requestFeedText( markerDefinition, data.text );\n\t\t\tconst matchedTextLength = markerDefinition.marker.length + feedText.length;\n\n\t\t\t// Create a marker range.\n\t\t\tconst start = focus.getShiftedBy( -matchedTextLength );\n\t\t\tconst end = focus.getShiftedBy( -feedText.length );\n\n\t\t\tconst markerRange = editor.model.createRange( start, end );\n\n\t\t\t// @if CK_DEBUG_MENTION // console.group( '%c[TextWatcher]%c matched', 'color: red', 'color: black', `\"${ feedText }\"` );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'data#text', `\"${ data.text }\"` );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'data#range', data.range.start.path, data.range.end.path );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'marker definition', markerDefinition );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'marker range', markerRange.start.path, markerRange.end.path );\n\n\t\t\tif ( checkIfStillInCompletionMode( editor ) ) {\n\t\t\t\tconst mentionMarker = editor.model.markers.get( 'mention' );\n\n\t\t\t\t// Update the marker - user might've moved the selection to other mention trigger.\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Editing]%c Updating the marker.', 'color: purple', 'color: black' );\n\n\t\t\t\t\twriter.updateMarker( mentionMarker, { range: markerRange } );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Editing]%c Adding the marker.', 'color: purple', 'color: black' );\n\n\t\t\t\t\twriter.addMarker( 'mention', { range: markerRange, usingOperation: false, affectsData: false } );\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\tthis._requestFeedDebounced( markerDefinition.marker, feedText );\n\n\t\t\t// @if CK_DEBUG_MENTION // console.groupEnd( '[TextWatcher] matched' );\n\t\t} );\n\n\t\twatcher.on( 'unmatched', () => {\n\t\t\tthis._hideUIAndRemoveMarker();\n\t\t} );\n\n\t\tconst mentionCommand = editor.commands.get( 'mention' );\n\t\twatcher.bind( 'isEnabled' ).to( mentionCommand );\n\n\t\treturn watcher;\n\t}\n\n\t/**\n\t * Handles the feed response event data.\n\t *\n\t * @param data\n\t * @private\n\t */\n\t_handleFeedResponse( data ) {\n\t\tconst { feed, marker } = data;\n\n\t\t// eslint-disable-next-line max-len\n\t\t// @if CK_DEBUG_MENTION // console.log( `%c[Feed]%c Response for \"${ data.feedText }\" (${ feed.length })`, 'color: blue', 'color: black', feed );\n\n\t\t// If the marker is not in the document happens when the selection had changed and the 'mention' marker was removed.\n\t\tif ( !checkIfStillInCompletionMode( this.editor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Reset the view.\n\t\tthis._items.clear();\n\n\t\tfor ( const feedItem of feed ) {\n\t\t\tconst item = typeof feedItem != 'object' ? { id: feedItem, text: feedItem } : feedItem;\n\n\t\t\tthis._items.add( { item, marker } );\n\t\t}\n\n\t\tconst mentionMarker = this.editor.model.markers.get( 'mention' );\n\n\t\tif ( this._items.length ) {\n\t\t\tthis._showOrUpdateUI( mentionMarker );\n\t\t} else {\n\t\t\t// Do not show empty mention UI.\n\t\t\tthis._hideUIAndRemoveMarker();\n\t\t}\n\t}\n\n\t/**\n\t * Shows the mentions balloon. If the panel is already visible, it will reposition it.\n\t *\n\t * @private\n\t */\n\t_showOrUpdateUI( markerMarker ) {\n\t\tif ( this._isUIVisible ) {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[UI]%c Updating position.', 'color: green', 'color: black' );\n\n\t\t\t// Update balloon position as the mention list view may change its size.\n\t\t\tthis._balloon.updatePosition( this._getBalloonPanelPositionData( markerMarker, this._mentionsView.position ) );\n\t\t} else {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[UI]%c Showing the UI.', 'color: green', 'color: black' );\n\n\t\t\tthis._balloon.add( {\n\t\t\t\tview: this._mentionsView,\n\t\t\t\tposition: this._getBalloonPanelPositionData( markerMarker, this._mentionsView.position ),\n\t\t\t\tsingleViewMode: true\n\t\t\t} );\n\t\t}\n\n\t\tthis._mentionsView.position = this._balloon.view.position;\n\t\tthis._mentionsView.selectFirst();\n\t}\n\n\t/**\n\t * Hides the mentions balloon and removes the 'mention' marker from the markers collection.\n\t *\n\t * @private\n\t */\n\t_hideUIAndRemoveMarker() {\n\t\t// Remove the mention view from balloon before removing marker - it is used by balloon position target().\n\t\tif ( this._balloon.hasView( this._mentionsView ) ) {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[UI]%c Hiding the UI.', 'color: green', 'color: black' );\n\n\t\t\tthis._balloon.remove( this._mentionsView );\n\t\t}\n\n\t\tif ( checkIfStillInCompletionMode( this.editor ) ) {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Editing]%c Removing marker.', 'color: purple', 'color: black' );\n\n\t\t\tthis.editor.model.change( writer => writer.removeMarker( 'mention' ) );\n\t\t}\n\n\t\t// Make the last matched position on panel view undefined so the #_getBalloonPanelPositionData() method will return all positions\n\t\t// on the next call.\n\t\tthis._mentionsView.position = undefined;\n\t}\n\n\t/**\n\t * Renders a single item in the autocomplete list.\n\t *\n\t * @private\n\t * @param {module:mention/mention~MentionFeedItem} item\n\t * @param {String} marker\n\t * @returns {module:ui/button/buttonview~ButtonView|module:mention/ui/domwrapperview~DomWrapperView}\n\t */\n\t_renderItem( item, marker ) {\n\t\tconst editor = this.editor;\n\n\t\tlet view;\n\t\tlet label = item.id;\n\n\t\tconst renderer = this._getItemRenderer( marker );\n\n\t\tif ( renderer ) {\n\t\t\tconst renderResult = renderer( item );\n\n\t\t\tif ( typeof renderResult != 'string' ) {\n\t\t\t\tview = new DomWrapperView( editor.locale, renderResult );\n\t\t\t} else {\n\t\t\t\tlabel = renderResult;\n\t\t\t}\n\t\t}\n\n\t\tif ( !view ) {\n\t\t\tconst buttonView = new ButtonView( editor.locale );\n\n\t\t\tbuttonView.label = label;\n\t\t\tbuttonView.withText = true;\n\n\t\t\tview = buttonView;\n\t\t}\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * Creates a position options object used to position the balloon panel.\n\t *\n\t * @param {module:engine/model/markercollection~Marker} mentionMarker\n\t * @param {String|undefined} preferredPosition The name of the last matched position name.\n\t * @returns {module:utils/dom/position~Options}\n\t * @private\n\t */\n\t_getBalloonPanelPositionData( mentionMarker, preferredPosition ) {\n\t\tconst editor = this.editor;\n\t\tconst editing = editor.editing;\n\t\tconst domConverter = editing.view.domConverter;\n\t\tconst mapper = editing.mapper;\n\n\t\treturn {\n\t\t\ttarget: () => {\n\t\t\t\tlet modelRange = mentionMarker.getRange();\n\n\t\t\t\t// Target the UI to the model selection range - the marker has been removed so probably the UI will not be shown anyway.\n\t\t\t\t// The logic is used by ContextualBalloon to display another panel in the same place.\n\t\t\t\tif ( modelRange.start.root.rootName == '$graveyard' ) {\n\t\t\t\t\tmodelRange = editor.model.document.selection.getFirstRange();\n\t\t\t\t}\n\n\t\t\t\tconst viewRange = mapper.toViewRange( modelRange );\n\t\t\t\tconst rangeRects = Rect.getDomRangeRects( domConverter.viewRangeToDom( viewRange ) );\n\n\t\t\t\treturn rangeRects.pop();\n\t\t\t},\n\t\t\tlimiter: () => {\n\t\t\t\tconst view = this.editor.editing.view;\n\t\t\t\tconst viewDocument = view.document;\n\t\t\t\tconst editableElement = viewDocument.selection.editableElement;\n\n\t\t\t\tif ( editableElement ) {\n\t\t\t\t\treturn view.domConverter.mapViewToDom( editableElement.root );\n\t\t\t\t}\n\n\t\t\t\treturn null;\n\t\t\t},\n\t\t\tpositions: getBalloonPanelPositions( preferredPosition )\n\t\t};\n\t}\n}\n\n// Returns the balloon positions data callbacks.\n//\n// @param {String} preferredPosition\n// @returns {Array.<module:utils/dom/position~Position>}\nfunction getBalloonPanelPositions( preferredPosition ) {\n\tconst positions = {\n\t\t// Positions the panel to the southeast of the caret rectangle.\n\t\t'caret_se': targetRect => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.bottom + VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right,\n\t\t\t\tname: 'caret_se',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t},\n\n\t\t// Positions the panel to the northeast of the caret rectangle.\n\t\t'caret_ne': ( targetRect, balloonRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.top - balloonRect.height - VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right,\n\t\t\t\tname: 'caret_ne',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t},\n\n\t\t// Positions the panel to the southwest of the caret rectangle.\n\t\t'caret_sw': ( targetRect, balloonRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.bottom + VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right - balloonRect.width,\n\t\t\t\tname: 'caret_sw',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t},\n\n\t\t// Positions the panel to the northwest of the caret rect.\n\t\t'caret_nw': ( targetRect, balloonRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.top - balloonRect.height - VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right - balloonRect.width,\n\t\t\t\tname: 'caret_nw',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t};\n\n\t// Returns only the last position if it was matched to prevent the panel from jumping after the first match.\n\tif ( Object.prototype.hasOwnProperty.call( positions, preferredPosition ) ) {\n\t\treturn [\n\t\t\tpositions[ preferredPosition ]\n\t\t];\n\t}\n\n\t// By default return all position callbacks.\n\treturn [\n\t\tpositions.caret_se,\n\t\tpositions.caret_sw,\n\t\tpositions.caret_ne,\n\t\tpositions.caret_nw\n\t];\n}\n\n// Returns a marker definition of the last valid occurring marker in a given string.\n// If there is no valid marker in a string, it returns undefined.\n//\n// Example of returned object:\n//\n//\t\t{\n//\t\t\tmarker: '@',\n//\t\t\tposition: 4,\n//\t\t\tminimumCharacters: 0\n//\t\t}\n//\n// @param {Array.<Object>} feedsWithPattern Registered feeds in editor for mention plugin with created RegExp for matching marker.\n// @param {String} text String to find the marker in\n// @returns {Object} Matched marker's definition\nfunction getLastValidMarkerInText( feedsWithPattern, text ) {\n\tlet lastValidMarker;\n\n\tfor ( const feed of feedsWithPattern ) {\n\t\tconst currentMarkerLastIndex = text.lastIndexOf( feed.marker );\n\n\t\tif ( currentMarkerLastIndex > 0 && !text.substring( currentMarkerLastIndex - 1 ).match( feed.pattern ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tif ( !lastValidMarker || currentMarkerLastIndex >= lastValidMarker.position ) {\n\t\t\tlastValidMarker = {\n\t\t\t\tmarker: feed.marker,\n\t\t\t\tposition: currentMarkerLastIndex,\n\t\t\t\tminimumCharacters: feed.minimumCharacters,\n\t\t\t\tpattern: feed.pattern\n\t\t\t};\n\t\t}\n\t}\n\n\treturn lastValidMarker;\n}\n\n// Creates a RegExp pattern for the marker.\n//\n// Function has to be exported to achieve 100% code coverage.\n//\n// @param {String} marker\n// @param {Number} minimumCharacters\n// @returns {RegExp}\n// trilium change: '=' will end the mention but also accepts it as the beginning (support for autocompleting attribute name and relation value)\nexport function createRegExp( marker, minimumCharacters ) {\n\tconst numberOfCharacters = minimumCharacters == 0 ? '*' : `{${ minimumCharacters },}`;\n\n\tconst openAfterCharacters = env.features.isRegExpUnicodePropertySupported ? '\\\\p{Ps}\\\\p{Pi}\"\\'' : '\\\\(\\\\[{\"\\'';\n\tconst mentionCharacters = '^='\n\n\t// The pattern consists of 3 groups:\n\t// - 0 (non-capturing): Opening sequence - start of the line, space or an opening punctuation character like \"(\" or \"\\\"\",\n\t// - 1: The marker character,\n\t// - 2: Mention input (taking the minimal length into consideration to trigger the UI),\n\t//\n\t// The pattern matches up to the caret (end of string switch - $).\n\t//               (0:      opening sequence        )(1:  marker   )(2:                typed mention                )$\n\tconst pattern = `(?:^|[= ${ openAfterCharacters }])([${ marker }])([${ mentionCharacters }]${ numberOfCharacters })$`;\n\n\treturn new RegExp( pattern, 'u' );\n}\n\n// Creates a test callback for the marker to be used in the text watcher instance.\n//\n// @param {Array.<Object>} feedsWithPattern Feeds of mention plugin configured in editor with RegExp to match marker in text\n// @returns {Function}\nfunction createTestCallback( feedsWithPattern ) {\n\tconst textMatcher = text => {\n\t\tconst markerDefinition = getLastValidMarkerInText( feedsWithPattern, text );\n\n\t\tif ( !markerDefinition ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet splitStringFrom = 0;\n\n\t\tif ( markerDefinition.position !== 0 ) {\n\t\t\tsplitStringFrom = markerDefinition.position - 1;\n\t\t}\n\n\t\tconst textToTest = text.substring( splitStringFrom );\n\n\t\treturn markerDefinition.pattern.test( textToTest );\n\t};\n\n\treturn textMatcher;\n}\n\n// Creates a text matcher from the marker.\n//\n// @param {Object} markerDefinition\n// @param {String} text\n// @returns {Function}\nfunction requestFeedText( markerDefinition, text ) {\n\tlet splitStringFrom = 0;\n\n\tif ( markerDefinition.position !== 0 ) {\n\t\tsplitStringFrom = markerDefinition.position - 1;\n\t}\n\n\tconst regExp = createRegExp( markerDefinition.marker, 0 );\n\tconst textToMatch = text.substring( splitStringFrom );\n\tconst match = textToMatch.match( regExp );\n\n\treturn match[ 2 ];\n}\n\n// The default feed callback.\nfunction createFeedCallback( feedItems ) {\n\treturn feedText => {\n\t\tconst filteredItems = feedItems\n\t\t// Make the default mention feed case-insensitive.\n\t\t\t.filter( item => {\n\t\t\t\t// Item might be defined as object.\n\t\t\t\tconst itemId = typeof item == 'string' ? item : String( item.id );\n\n\t\t\t\t// The default feed is case insensitive.\n\t\t\t\treturn itemId.toLowerCase().includes( feedText.toLowerCase() );\n\t\t\t} );\n\t\treturn filteredItems;\n\t};\n}\n\n// Checks if position in inside or right after a text with a mention.\n//\n// @param {module:engine/model/position~Position} position.\n// @returns {Boolean}\nfunction isPositionInExistingMention( position ) {\n\t// The text watcher listens only to changed range in selection - so the selection attributes are not yet available\n\t// and you cannot use selection.hasAttribute( 'mention' ) just yet.\n\t// See https://github.com/ckeditor/ckeditor5-engine/issues/1723.\n\tconst hasMention = position.textNode && position.textNode.hasAttribute( 'mention' );\n\n\tconst nodeBefore = position.nodeBefore;\n\n\treturn hasMention || nodeBefore && nodeBefore.is( '$text' ) && nodeBefore.hasAttribute( 'mention' );\n}\n\n// Checks if the closest marker offset is at the beginning of a mention.\n//\n// See https://github.com/ckeditor/ckeditor5/issues/11400.\n//\n// @param {module:engine/model/position~Position} markerPosition\n// @returns {Boolean}\nfunction isMarkerInExistingMention( markerPosition ) {\n\tconst nodeAfter = markerPosition.nodeAfter;\n\n\treturn nodeAfter && nodeAfter.is( '$text' ) && nodeAfter.hasAttribute( 'mention' );\n}\n\n// Checks if string is a valid mention marker.\n//\n// @param {String} marker\n// @returns {Boolean}\nfunction isValidMentionMarker( marker ) {\n\treturn marker && marker.length == 1;\n}\n\n// Checks the mention plugins is in completion mode (e.g. when typing is after a valid mention string like @foo).\n//\n// @returns {Boolean}\nfunction checkIfStillInCompletionMode( editor ) {\n\treturn editor.model.markers.has( 'mention' );\n}\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./mention.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentediting\n */\n\nimport { Plugin, MultiCommand } from 'ckeditor5/src/core';\n\n/**\n * The indent editing feature.\n *\n * This plugin registers the `'indent'` and `'outdent'` commands.\n *\n * **Note**: In order for the commands to work, at least one of the compatible features is required. Read more in the\n * {@link module:indent/indent~Indent indent feature} API documentation.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class IndentEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'IndentEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\teditor.commands.add( 'indent', new MultiCommand( editor ) );\n\t\teditor.commands.add( 'outdent', new MultiCommand( editor ) );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zM1.632 6.95 5.02 9.358a.4.4 0 0 1-.013.661l-3.39 2.207A.4.4 0 0 1 1 11.892V7.275a.4.4 0 0 1 .632-.326z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zm1.618-9.55L.98 9.358a.4.4 0 0 0 .013.661l3.39 2.207A.4.4 0 0 0 5 11.892V7.275a.4.4 0 0 0-.632-.326z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentui\n */\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport indentIcon from '../theme/icons/indent.svg';\nimport outdentIcon from '../theme/icons/outdent.svg';\n\n/**\n * The indent UI feature.\n *\n * This plugin registers the `'indent'` and `'outdent'` buttons.\n *\n * **Note**: In order for the commands to work, at least one of the compatible features is required. Read more in\n * the {@link module:indent/indent~Indent indent feature} API documentation.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class IndentUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'IndentUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst locale = editor.locale;\n\t\tconst t = editor.t;\n\n\t\tconst localizedIndentIcon = locale.uiLanguageDirection == 'ltr' ? indentIcon : outdentIcon;\n\t\tconst localizedOutdentIcon = locale.uiLanguageDirection == 'ltr' ? outdentIcon : indentIcon;\n\n\t\tthis._defineButton( 'indent', t( 'Increase indent' ), localizedIndentIcon );\n\t\tthis._defineButton( 'outdent', t( 'Decrease indent' ), localizedOutdentIcon );\n\t}\n\n\t/**\n\t * Defines a UI button.\n\t *\n\t * @param {String} commandName\n\t * @param {String} label\n\t * @param {String} icon\n\t * @private\n\t */\n\t_defineButton( commandName, label, icon ) {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( commandName, locale => {\n\t\t\tconst command = editor.commands.get( commandName );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel,\n\t\t\t\ticon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( commandName );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentblockcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The indent block command.\n *\n * The command is registered by the {@link module:indent/indentblock~IndentBlock} as `'indentBlock'` for indenting blocks and\n * `'outdentBlock'` for outdenting blocks.\n *\n * To increase block indentation at the current selection, execute the command:\n *\n *\t\teditor.execute( 'indentBlock' );\n *\n * To decrease block indentation at the current selection, execute the command:\n *\n *\t\teditor.execute( 'outdentBlock' );\n *\n * @extends module:core/command~Command\n */\nexport default class IndentBlockCommand extends Command {\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param {module:core/editor/editor~Editor} editor The editor instance.\n\t * @param {module:indent/indentblockcommand~IndentBehavior} indentBehavior\n\t */\n\tconstructor( editor, indentBehavior ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The command's indentation behavior.\n\t\t *\n\t\t * @type {module:indent/indentblockcommand~IndentBehavior}\n\t\t * @private\n\t\t */\n\t\tthis._indentBehavior = indentBehavior;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\t// Check whether any of the position's ancestors is a list item.\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tconst block = first( model.document.selection.getSelectedBlocks() );\n\n\t\tif ( !block || !model.schema.checkAttribute( block, 'blockIndent' ) ) {\n\t\t\tthis.isEnabled = false;\n\n\t\t\treturn;\n\t\t}\n\n\t\tthis.isEnabled = this._indentBehavior.checkEnabled( block.getAttribute( 'blockIndent' ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\n\t\tconst blocksToChange = getBlocksToChange( model );\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const block of blocksToChange ) {\n\t\t\t\tconst currentIndent = block.getAttribute( 'blockIndent' );\n\n\t\t\t\tconst nextIndent = this._indentBehavior.getNextIndent( currentIndent );\n\n\t\t\t\tif ( nextIndent ) {\n\t\t\t\t\twriter.setAttribute( 'blockIndent', nextIndent, block );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( 'blockIndent', block );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n\n// Returns blocks from selection that should have blockIndent selection set.\n//\n// @param {module:engine/model/model~model} model A model.\nfunction getBlocksToChange( model ) {\n\tconst selection = model.document.selection;\n\tconst schema = model.schema;\n\tconst blocksInSelection = Array.from( selection.getSelectedBlocks() );\n\n\treturn blocksInSelection.filter( block => schema.checkAttribute( block, 'blockIndent' ) );\n}\n\n/**\n * Provides indentation behavior to {@link module:indent/indentblockcommand~IndentBlockCommand}.\n *\n * @interface module:indent/indentblockcommand~IndentBehavior\n */\n\n/**\n * Checks if the command should be enabled.\n *\n * @method #checkEnabled\n * @param {String} indentAttributeValue The current indent attribute value.\n * @returns {Boolean}\n */\n\n/**\n * Returns a new indent attribute value based on the current indent. This method returns `undefined` when the indentation should be removed.\n *\n * @method #getNextIndent\n * @param {String} indentAttributeValue The current indent attribute value.\n * @returns {String|undefined}\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentcommandbehavior/indentusingoffset\n */\n\n/**\n * The block indentation behavior that uses offsets to set indentation.\n *\n * @implements module:indent/indentblockcommand~IndentBehavior\n */\nexport default class IndentUsingOffset {\n\t/**\n\t * Creates an instance of the indentation behavior.\n\t *\n\t * @param {Object} config\n\t * @param {String} config.direction The direction of indentation.\n\t * @param {Number} config.offset The offset of the next indentation step.\n\t * @param {String} config.unit Indentation unit.\n\t */\n\tconstructor( config ) {\n\t\t/**\n\t\t * The direction of indentation.\n\t\t *\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.isForward = config.direction === 'forward';\n\n\t\t/**\n\t\t * The offset of the next indentation step.\n\t\t *\n\t\t * @type {Number}\n\t\t */\n\t\tthis.offset = config.offset;\n\n\t\t/**\n\t\t * Indentation unit.\n\t\t *\n\t\t * @type {String}\n\t\t */\n\t\tthis.unit = config.unit;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tcheckEnabled( indentAttributeValue ) {\n\t\tconst currentOffset = parseFloat( indentAttributeValue || 0 );\n\n\t\t// The command is always enabled for forward indentation.\n\t\treturn this.isForward || currentOffset > 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tgetNextIndent( indentAttributeValue ) {\n\t\tconst currentOffset = parseFloat( indentAttributeValue || 0 );\n\t\tconst isSameUnit = !indentAttributeValue || indentAttributeValue.endsWith( this.unit );\n\n\t\tif ( !isSameUnit ) {\n\t\t\treturn this.isForward ? this.offset + this.unit : undefined;\n\t\t}\n\n\t\tconst nextOffset = this.isForward ? this.offset : -this.offset;\n\n\t\tconst offsetToSet = currentOffset + nextOffset;\n\n\t\treturn offsetToSet > 0 ? offsetToSet + this.unit : undefined;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentcommandbehavior/indentusingclasses\n */\n\n/**\n * The block indentation behavior that uses classes to set indentation.\n *\n * @implements module:indent/indentblockcommand~IndentBehavior\n */\nexport default class IndentUsingClasses {\n\t/**\n\t * Creates an instance of the indentation behavior.\n\t *\n\t * @param {Object} config\n\t * @param {String} config.direction The direction of indentation.\n\t * @param {Array.<String>} config.classes A list of classes used for indentation.\n\t */\n\tconstructor( config ) {\n\t\t/**\n\t\t * The direction of indentation.\n\t\t *\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.isForward = config.direction === 'forward';\n\n\t\t/**\n\t\t * A list of classes used for indentation.\n\t\t *\n\t\t * @type {Array.<String>}\n\t\t */\n\t\tthis.classes = config.classes;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tcheckEnabled( indentAttributeValue ) {\n\t\tconst currentIndex = this.classes.indexOf( indentAttributeValue );\n\n\t\tif ( this.isForward ) {\n\t\t\treturn currentIndex < this.classes.length - 1;\n\t\t} else {\n\t\t\treturn currentIndex >= 0;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tgetNextIndent( indentAttributeValue ) {\n\t\tconst currentIndex = this.classes.indexOf( indentAttributeValue );\n\t\tconst indexStep = this.isForward ? 1 : -1;\n\n\t\treturn this.classes[ currentIndex + indexStep ];\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentblock\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { addMarginRules } from 'ckeditor5/src/engine';\n\nimport IndentBlockCommand from './indentblockcommand';\nimport IndentUsingOffset from './indentcommandbehavior/indentusingoffset';\nimport IndentUsingClasses from './indentcommandbehavior/indentusingclasses';\n\nconst DEFAULT_ELEMENTS = [ 'paragraph', 'heading1', 'heading2', 'heading3', 'heading4', 'heading5', 'heading6' ];\n\n/**\n * The block indentation feature.\n *\n * It registers the `'indentBlock'` and `'outdentBlock'` commands.\n *\n * If the plugin {@link module:indent/indent~Indent} is defined, it also attaches the `'indentBlock'` and `'outdentBlock'` commands to\n * the `'indent'` and `'outdent'` commands.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class IndentBlock extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'indentBlock', {\n\t\t\toffset: 40,\n\t\t\tunit: 'px'\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'IndentBlock';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst configuration = editor.config.get( 'indentBlock' );\n\n\t\tconst useOffsetConfig = !configuration.classes || !configuration.classes.length;\n\n\t\tconst indentConfig = Object.assign( { direction: 'forward' }, configuration );\n\t\tconst outdentConfig = Object.assign( { direction: 'backward' }, configuration );\n\n\t\tif ( useOffsetConfig ) {\n\t\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t\t\tthis._setupConversionUsingOffset( editor.conversion );\n\n\t\t\teditor.commands.add( 'indentBlock', new IndentBlockCommand( editor, new IndentUsingOffset( indentConfig ) ) );\n\t\t\teditor.commands.add( 'outdentBlock', new IndentBlockCommand( editor, new IndentUsingOffset( outdentConfig ) ) );\n\t\t} else {\n\t\t\tthis._setupConversionUsingClasses( configuration.classes );\n\t\t\teditor.commands.add( 'indentBlock', new IndentBlockCommand( editor, new IndentUsingClasses( indentConfig ) ) );\n\t\t\teditor.commands.add( 'outdentBlock', new IndentBlockCommand( editor, new IndentUsingClasses( outdentConfig ) ) );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\tconst indentCommand = editor.commands.get( 'indent' );\n\t\tconst outdentCommand = editor.commands.get( 'outdent' );\n\n\t\t// Enable block indentation to heading configuration options. If it is not defined enable in paragraph and default headings.\n\t\tconst options = editor.config.get( 'heading.options' );\n\t\tconst configuredElements = options && options.map( option => option.model );\n\t\tconst knownElements = configuredElements || DEFAULT_ELEMENTS;\n\n\t\tknownElements.forEach( elementName => {\n\t\t\tif ( schema.isRegistered( elementName ) ) {\n\t\t\t\tschema.extend( elementName, { allowAttributes: 'blockIndent' } );\n\t\t\t}\n\t\t} );\n\n\t\tschema.setAttributeProperties( 'blockIndent', { isFormatting: true } );\n\n\t\tindentCommand.registerChildCommand( editor.commands.get( 'indentBlock' ) );\n\t\toutdentCommand.registerChildCommand( editor.commands.get( 'outdentBlock' ) );\n\t}\n\n\t/**\n\t * Setups conversion for using offset indents.\n\t *\n\t * @private\n\t */\n\t_setupConversionUsingOffset() {\n\t\tconst conversion = this.editor.conversion;\n\t\tconst locale = this.editor.locale;\n\t\tconst marginProperty = locale.contentLanguageDirection === 'rtl' ? 'margin-right' : 'margin-left';\n\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tstyles: {\n\t\t\t\t\t[ marginProperty ]: /[\\s\\S]+/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'blockIndent',\n\t\t\t\tvalue: viewElement => viewElement.getStyle( marginProperty )\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'downcast' ).attributeToAttribute( {\n\t\t\tmodel: 'blockIndent',\n\t\t\tview: modelAttributeValue => {\n\t\t\t\treturn {\n\t\t\t\t\tkey: 'style',\n\t\t\t\t\tvalue: {\n\t\t\t\t\t\t[ marginProperty ]: modelAttributeValue\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Setups conversion for using classes.\n\t *\n\t * @param {Array.<String>} classes\n\t * @private\n\t */\n\t_setupConversionUsingClasses( classes ) {\n\t\tconst definition = {\n\t\t\tmodel: {\n\t\t\t\tkey: 'blockIndent',\n\t\t\t\tvalues: []\n\t\t\t},\n\t\t\tview: {}\n\t\t};\n\n\t\tfor ( const className of classes ) {\n\t\t\tdefinition.model.values.push( className );\n\t\t\tdefinition.view[ className ] = {\n\t\t\t\tkey: 'class',\n\t\t\t\tvalue: [ className ]\n\t\t\t};\n\t\t}\n\n\t\tthis.editor.conversion.attributeToAttribute( definition );\n\t}\n}\n\n/**\n * The configuration of the {@link module:indent/indentblock~IndentBlock block indentation feature}.\n *\n * Read more in {@link module:indent/indentblock~IndentBlockConfig}.\n *\n * @member {module:indent/indentblock~IndentBlockConfig} module:core/editor/editorconfig~EditorConfig#indentBlock\n */\n\n/**\n * The configuration of the block indentation feature.\n *\n * If no {@link module:indent/indentblock~IndentBlockConfig#classes} are set, the block indentation feature will use\n * {@link module:indent/indentblock~IndentBlockConfig#offset} and {@link module:indent/indentblock~IndentBlockConfig#unit} to\n * create indentation steps.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n * \t\t\t\tindentBlock: {\n *\t\t\t\t\toffset: 2,\n *\t\t\t\t\tunit: 'em'\n * \t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * Alternatively, the block indentation feature may set one of defined {@link module:indent/indentblock~IndentBlockConfig#classes} as\n * indentation steps:\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n * \t\t\t\tindentBlock: {\n *\t\t\t\t\tclasses: [\n *\t\t\t\t\t\t'indent-a', // The first step - smallest indentation.\n *\t\t\t\t\t\t'indent-b',\n *\t\t\t\t\t\t'indent-c',\n *\t\t\t\t\t\t'indent-d',\n *\t\t\t\t\t\t'indent-e' // The last step - biggest indentation.\n *\t\t\t\t\t]\n * \t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * In the example above only 5 indentation steps will be available.\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface IndentBlockConfig\n */\n\n/**\n * The size of indentation {@link module:indent/indentblock~IndentBlockConfig#unit units} for each indentation step.\n *\n * @default 40\n * @member {Number} module:indent/indentblock~IndentBlockConfig#offset\n */\n\n/**\n * The unit used for indentation {@link module:indent/indentblock~IndentBlockConfig#offset}.\n *\n * @default 'px'\n * @member {String} module:indent/indentblock~IndentBlockConfig#unit\n */\n\n/**\n * An optional list of classes to use for indenting the editor content. If not set or set to an empty array, no classes will be used.\n * The {@link module:indent/indentblock~IndentBlockConfig#unit `indentBlock.unit`} and\n * {@link module:indent/indentblock~IndentBlockConfig#offset `indentBlock.offset`} properties will be used instead.\n *\n * @default undefined\n * @member {Array.<String>|undefined} module:indent/indentblock~IndentBlockConfig#classes\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectallcommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\nimport type { Element, Schema } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The select all command.\n *\n * It is used by the {@link module:select-all/selectallediting~SelectAllEditing select all editing feature} to handle\n * the <kbd>Ctrl/⌘</kbd>+<kbd>A</kbd> keystroke.\n *\n * Executing this command changes the {@glink framework/guides/architecture/editing-engine#model model}\n * selection so it contains the entire content of the editable root of the editor the selection is\n * {@link module:engine/model/selection~Selection#anchor anchored} in.\n *\n * If the selection was anchored in a {@glink framework/guides/tutorials/implementing-a-block-widget nested editable}\n * (e.g. a caption of an image), the new selection will contain its entire content. Successive executions of this command\n * will expand the selection to encompass more and more content up to the entire editable root of the editor.\n *\n * @extends module:core/command~Command\n */\nexport default class SelectAllCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tlet scopeElement: Element | null = model.schema.getLimitElement( selection );\n\n\t\t// If an entire scope is selected, or the selection's ancestor is not a scope yet,\n\t\t// browse through ancestors to find the enclosing parent scope.\n\t\tif ( selection.containsEntireContent( scopeElement ) || !isSelectAllScope( model.schema, scopeElement ) ) {\n\t\t\tdo {\n\t\t\t\tscopeElement = scopeElement.parent as Element | null;\n\n\t\t\t\t// Do nothing, if the entire `root` is already selected.\n\t\t\t\tif ( !scopeElement ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t} while ( !isSelectAllScope( model.schema, scopeElement ) );\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( scopeElement, 'in' );\n\t\t} );\n\t}\n}\n\n// Checks whether the element is a valid select-all scope.\n// Returns true, if the element is a {@link module:engine/model/schema~Schema#isLimit limit},\n// and can contain any text or paragraph.\n//\n// @param {module:engine/model/schema~Schema} schema The schema to check against.\n// @param {module:engine/model/element~Element} element\n// @return {Boolean}\nfunction isSelectAllScope( schema: Schema, element: Element ) {\n\treturn schema.isLimit( element ) && ( schema.checkChild( element, '$text' ) || schema.checkChild( element, 'paragraph' ) );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectallediting\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { getCode, parseKeystroke } from '@ckeditor/ckeditor5-utils';\nimport SelectAllCommand from './selectallcommand';\nimport type { ViewDocumentKeyEvent } from '@ckeditor/ckeditor5-engine';\n\nconst SELECT_ALL_KEYSTROKE = parseKeystroke( 'Ctrl+A' );\n\n/**\n * The select all editing feature.\n *\n * It registers the `'selectAll'` {@link module:select-all/selectallcommand~SelectAllCommand command}\n * and the <kbd>Ctrl/⌘</kbd>+<kbd>A</kbd> keystroke listener which executes it.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class SelectAllEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SelectAllEditing' {\n\t\treturn 'SelectAllEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\teditor.commands.add( 'selectAll', new SelectAllCommand( editor ) );\n\n\t\tthis.listenTo<ViewDocumentKeyEvent>( viewDocument, 'keydown', ( eventInfo, domEventData ) => {\n\t\t\tif ( getCode( domEventData ) === SELECT_ALL_KEYSTROKE ) {\n\t\t\t\teditor.execute( 'selectAll' );\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t}\n\t\t} );\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface CommandsMap {\n\t\tselectAll: SelectAllCommand;\n\t}\n\n\tinterface PluginsMap {\n\t\t[ SelectAllEditing.pluginName ]: SelectAllEditing;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectallui\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { ButtonView } from '@ckeditor/ckeditor5-ui';\n\nimport selectAllIcon from '../theme/icons/select-all.svg';\n\n/**\n * The select all UI feature.\n *\n * It registers the `'selectAll'` UI button in the editor's\n * {@link module:ui/componentfactory~ComponentFactory component factory}. When clicked, the button\n * executes the {@link module:select-all/selectallcommand~SelectAllCommand select all command}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class SelectAllUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SelectAllUI' {\n\t\treturn 'SelectAllUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( 'selectAll', locale => {\n\t\t\tconst command = editor.commands.get( 'selectAll' )!;\n\t\t\tconst view = new ButtonView( locale );\n\t\t\tconst t = locale.t;\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Select all' ),\n\t\t\t\ticon: selectAllIcon,\n\t\t\t\tkeystroke: 'Ctrl+A',\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\n\t\t\t// Execute the command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'selectAll' );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ SelectAllUI.pluginName ]: SelectAllUI;\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" viewBox=\\\"0 0 20 20\\\"><path d=\\\"M.75 15.5a.75.75 0 0 1 .75.75V18l.008.09A.5.5 0 0 0 2 18.5h1.75a.75.75 0 1 1 0 1.5H1.5l-.144-.007a1.5 1.5 0 0 1-1.35-1.349L0 18.5v-2.25a.75.75 0 0 1 .75-.75zm18.5 0a.75.75 0 0 1 .75.75v2.25l-.007.144a1.5 1.5 0 0 1-1.349 1.35L18.5 20h-2.25a.75.75 0 1 1 0-1.5H18a.5.5 0 0 0 .492-.41L18.5 18v-1.75a.75.75 0 0 1 .75-.75zm-10.45 3c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm.45-5.5a.75.75 0 1 1 0 1.5h-8.5a.75.75 0 1 1 0-1.5h8.5zM1.3 11c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5H4.75a.75.75 0 1 1 0-1.5h10.5zM1.3 7c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5h-2.5a.75.75 0 1 1 0-1.5h2.5zm-5 0a.75.75 0 1 1 0 1.5h-5.5a.75.75 0 0 1 0-1.5h5.5zm-6.5-5a.75.75 0 0 1 0 1.5H2a.5.5 0 0 0-.492.41L1.5 2v1.75a.75.75 0 0 1-1.5 0V1.5l.007-.144A1.5 1.5 0 0 1 1.356.006L1.5 0h2.25zM18.5 0l.144.007a1.5 1.5 0 0 1 1.35 1.349L20 1.5v2.25a.75.75 0 1 1-1.5 0V2l-.008-.09A.5.5 0 0 0 18 1.5h-1.75a.75.75 0 1 1 0-1.5h2.25zM8.8 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectall\n */\n\nimport { Plugin, type PluginDependencies } from '@ckeditor/ckeditor5-core';\nimport SelectAllEditing from './selectallediting';\nimport SelectAllUI from './selectallui';\n\n/**\n * The select all feature.\n *\n * This is a \"glue\" plugin which loads the {@link module:select-all/selectallediting~SelectAllEditing select all editing feature}\n * and the {@link module:select-all/selectallui~SelectAllUI select all UI feature}.\n *\n * Please refer to the documentation of individual features to learn more.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class SelectAll extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ SelectAllEditing, SelectAllUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SelectAll' {\n\t\treturn 'SelectAll';\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ SelectAll.pluginName ]: SelectAll;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontallinecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { findOptimalInsertionRange } from 'ckeditor5/src/widget';\n\n/**\n * The horizontal line command.\n *\n * The command is registered by {@link module:horizontal-line/horizontallineediting~HorizontalLineEditing} as `'horizontalLine'`.\n *\n * To insert a horizontal line at the current selection, execute the command:\n *\n *\t\teditor.execute( 'horizontalLine' );\n *\n * @extends module:core/command~Command\n */\nexport default class HorizontalLineCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tthis.isEnabled = isHorizontalLineAllowedInParent( selection, schema, model );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\n\t\tmodel.change( writer => {\n\t\t\tconst horizontalElement = writer.createElement( 'horizontalLine' );\n\n\t\t\tmodel.insertObject( horizontalElement, null, null, { setSelection: 'after' } );\n\t\t} );\n\t}\n}\n\n// Checks if a horizontal line is allowed by the schema in the optimal insertion parent.\n//\n// @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n// @param {module:engine/model/schema~Schema} schema\n// @param {module:engine/model/model~Model} model Model instance.\n// @returns {Boolean}\nfunction isHorizontalLineAllowedInParent( selection, schema, model ) {\n\tconst parent = getInsertHorizontalLineParent( selection, model );\n\n\treturn schema.checkChild( parent, 'horizontalLine' );\n}\n\n// Returns a node that will be used to insert a horizontal line with `model.insertContent` to check if the horizontal line can be\n// placed there.\n//\n// @param {module:engine/model/selection~Selection|module:engine/model/documentselection~DocumentSelection} selection\n// @param {module:engine/model/model~Model} model Model instance.\n// @returns {module:engine/model/element~Element}\nfunction getInsertHorizontalLineParent( selection, model ) {\n\tconst insertionRange = findOptimalInsertionRange( selection, model );\n\tconst parent = insertionRange.start.parent;\n\n\tif ( parent.isEmpty && !parent.is( 'element', '$root' ) ) {\n\t\treturn parent.parent;\n\t}\n\n\treturn parent;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./horizontalline.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontallineediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { toWidget } from 'ckeditor5/src/widget';\n\nimport HorizontalLineCommand from './horizontallinecommand';\n\nimport '../theme/horizontalline.css';\n\n/**\n * The horizontal line editing feature.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class HorizontalLineEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'HorizontalLineEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst t = editor.t;\n\t\tconst conversion = editor.conversion;\n\n\t\tschema.register( 'horizontalLine', {\n\t\t\tinheritAllFrom: '$blockObject'\n\t\t} );\n\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'horizontalLine',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\treturn writer.createEmptyElement( 'hr' );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'editingDowncast' ).elementToStructure( {\n\t\t\tmodel: 'horizontalLine',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tconst label = t( 'Horizontal line' );\n\n\t\t\t\tconst viewWrapper = writer.createContainerElement( 'div', null,\n\t\t\t\t\twriter.createEmptyElement( 'hr' )\n\t\t\t\t);\n\n\t\t\t\twriter.addClass( 'ck-horizontal-line', viewWrapper );\n\t\t\t\twriter.setCustomProperty( 'hr', true, viewWrapper );\n\n\t\t\t\treturn toHorizontalLineWidget( viewWrapper, writer, label );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'upcast' ).elementToElement( { view: 'hr', model: 'horizontalLine' } );\n\n\t\teditor.commands.add( 'horizontalLine', new HorizontalLineCommand( editor ) );\n\t}\n}\n\n// Converts a given {@link module:engine/view/element~Element} to a horizontal line widget:\n// * Adds a {@link module:engine/view/element~Element#_setCustomProperty custom property} allowing to\n//   recognize the horizontal line widget element.\n// * Calls the {@link module:widget/utils~toWidget} function with the proper element's label creator.\n//\n//  @param {module:engine/view/element~Element} viewElement\n//  @param {module:engine/view/downcastwriter~DowncastWriter} writer An instance of the view writer.\n//  @param {String} label The element's label.\n//  @returns {module:engine/view/element~Element}\nfunction toHorizontalLineWidget( viewElement, writer, label ) {\n\twriter.setCustomProperty( 'horizontalLine', true, viewElement );\n\n\treturn toWidget( viewElement, writer, { label } );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontallineui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport horizontalLineIcon from '../theme/icons/horizontalline.svg';\n\n/**\n * The horizontal line UI plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class HorizontalLineUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'HorizontalLineUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add the `horizontalLine` button to feature components.\n\t\teditor.ui.componentFactory.add( 'horizontalLine', locale => {\n\t\t\tconst command = editor.commands.get( 'horizontalLine' );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Horizontal line' ),\n\t\t\t\ticon: horizontalLineIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\n\t\t\t// Execute the command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'horizontalLine' );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 9h16v2H2z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/basecommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport {\n\ttransformSets,\n\ttype Batch,\n\ttype Operation,\n\ttype DataControllerSetEvent,\n\ttype Range\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * Base class for the undo feature commands: {@link module:undo/undocommand~UndoCommand} and {@link module:undo/redocommand~RedoCommand}.\n *\n * @protected\n * @extends module:core/command~Command\n */\nexport default abstract class BaseCommand extends Command {\n\tprotected _stack: Array<{ batch: Batch; selection: { ranges: Array<Range>; isBackward: boolean } }>;\n\n\t/**\n\t * @internal\n\t */\n\tpublic _createdBatches: WeakSet<Batch>;\n\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * Stack of items stored by the command. These are pairs of:\n\t\t *\n\t\t * * {@link module:engine/model/batch~Batch batch} saved by the command,\n\t\t * * {@link module:engine/model/selection~Selection selection} state at the moment of saving the batch.\n\t\t *\n\t\t * @protected\n\t\t * @member {Array} #_stack\n\t\t */\n\t\tthis._stack = [];\n\n\t\t/**\n\t\t * Stores all batches that were created by this command.\n\t\t *\n\t\t * @protected\n\t\t * @member {WeakSet.<module:engine/model/batch~Batch>} #_createdBatches\n\t\t */\n\t\tthis._createdBatches = new WeakSet();\n\n\t\t// Refresh state, so the command is inactive right after initialization.\n\t\tthis.refresh();\n\n\t\t// Set the transparent batch for the `editor.data.set()` call if the\n\t\t// batch type is not set already.\n\t\tthis.listenTo<DataControllerSetEvent>( editor.data, 'set', ( evt, data ) => {\n\t\t\t// Create a shallow copy of the options to not change the original args.\n\t\t\t// And make sure that an object is assigned to data[ 1 ].\n\t\t\tdata[ 1 ] = { ...data[ 1 ] };\n\n\t\t\tconst options = data[ 1 ];\n\n\t\t\t// If batch type is not set, default to non-undoable batch.\n\t\t\tif ( !options.batchType ) {\n\t\t\t\toptions.batchType = { isUndoable: false };\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// Clear the stack for the `transparent` batches.\n\t\tthis.listenTo<DataControllerSetEvent>( editor.data, 'set', ( evt, data ) => {\n\t\t\t// We can assume that the object exists and it has a `batchType` property.\n\t\t\t// It was ensured with a higher priority listener before.\n\t\t\tconst options = data[ 1 ]!;\n\n\t\t\tif ( !options.batchType!.isUndoable ) {\n\t\t\t\tthis.clearStack();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.isEnabled = this._stack.length > 0;\n\t}\n\n\t/**\n\t * Stores a batch in the command, together with the selection state of the {@link module:engine/model/document~Document document}\n\t * created by the editor which this command is registered to.\n\t *\n\t * @param {module:engine/model/batch~Batch} batch The batch to add.\n\t */\n\tpublic addBatch( batch: Batch ): void {\n\t\tconst docSelection = this.editor.model.document.selection;\n\n\t\tconst selection = {\n\t\t\tranges: docSelection.hasOwnRange ? Array.from( docSelection.getRanges() ) : [],\n\t\t\tisBackward: docSelection.isBackward\n\t\t};\n\n\t\tthis._stack.push( { batch, selection } );\n\t\tthis.refresh();\n\t}\n\n\t/**\n\t * Removes all items from the stack.\n\t */\n\tpublic clearStack(): void {\n\t\tthis._stack = [];\n\t\tthis.refresh();\n\t}\n\n\t/**\n\t * Restores the {@link module:engine/model/document~Document#selection document selection} state after a batch was undone.\n\t *\n\t * @protected\n\t * @param {Array.<module:engine/model/range~Range>} ranges Ranges to be restored.\n\t * @param {Boolean} isBackward A flag describing whether the restored range was selected forward or backward.\n\t * @param {Array.<module:engine/model/operation/operation~Operation>} operations Operations which has been applied\n\t * since selection has been stored.\n\t */\n\tprotected _restoreSelection(\n\t\tranges: Array<Range>,\n\t\tisBackward: boolean,\n\t\toperations: Array<Operation>\n\t): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\t// This will keep the transformed selection ranges.\n\t\tconst selectionRanges: Array<Range> = [];\n\n\t\t// Transform all ranges from the restored selection.\n\t\tconst transformedRangeGroups = ranges.map( range => range.getTransformedByOperations( operations ) );\n\t\tconst allRanges = transformedRangeGroups.flat();\n\n\t\tfor ( const rangeGroup of transformedRangeGroups ) {\n\t\t\t// While transforming there could appear ranges that are contained by other ranges, we shall ignore them.\n\t\t\tconst transformed = rangeGroup\n\t\t\t\t.filter( range => range.root != document.graveyard )\n\t\t\t\t.filter( range => !isRangeContainedByAnyOtherRange( range, allRanges ) );\n\n\t\t\t// All the transformed ranges ended up in graveyard.\n\t\t\tif ( !transformed.length ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// After the range got transformed, we have an array of ranges. Some of those\n\t\t\t// ranges may be \"touching\" -- they can be next to each other and could be merged.\n\t\t\tnormalizeRanges( transformed );\n\n\t\t\t// For each `range` from `ranges`, we take only one transformed range.\n\t\t\t// This is because we want to prevent situation where single-range selection\n\t\t\t// got transformed to multi-range selection.\n\t\t\tselectionRanges.push( transformed[ 0 ] );\n\t\t}\n\n\t\t// @if CK_DEBUG_ENGINE // console.log( `Restored selection by undo: ${ selectionRanges.join( ', ' ) }` );\n\n\t\t// `selectionRanges` may be empty if all ranges ended up in graveyard. If that is the case, do not restore selection.\n\t\tif ( selectionRanges.length ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( selectionRanges, { backward: isBackward } );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Undoes a batch by reversing that batch, transforming reversed batch and finally applying it.\n\t * This is a helper method for {@link #execute}.\n\t *\n\t * @protected\n\t * @param {module:engine/model/batch~Batch} batchToUndo The batch to be undone.\n\t * @param {module:engine/model/batch~Batch} undoingBatch The batch that will contain undoing changes.\n\t */\n\tprotected _undo( batchToUndo: Batch, undoingBatch: Batch ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\t// All changes done by the command execution will be saved as one batch.\n\t\tthis._createdBatches.add( undoingBatch );\n\n\t\tconst operationsToUndo = batchToUndo.operations.slice().filter( operation => operation.isDocumentOperation );\n\t\toperationsToUndo.reverse();\n\n\t\t// We will process each operation from `batchToUndo`, in reverse order. If there were operations A, B and C in undone batch,\n\t\t// we need to revert them in reverse order, so first C' (reversed C), then B', then A'.\n\t\tfor ( const operationToUndo of operationsToUndo ) {\n\t\t\tconst nextBaseVersion = operationToUndo.baseVersion! + 1;\n\t\t\tconst historyOperations = Array.from( document.history.getOperations( nextBaseVersion ) );\n\n\t\t\tconst transformedSets = transformSets(\n\t\t\t\t[ operationToUndo.getReversed() ],\n\t\t\t\thistoryOperations,\n\t\t\t\t{\n\t\t\t\t\tuseRelations: true,\n\t\t\t\t\tdocument: this.editor.model.document,\n\t\t\t\t\tpadWithNoOps: false,\n\t\t\t\t\tforceWeakRemove: true\n\t\t\t\t}\n\t\t\t);\n\n\t\t\tconst reversedOperations = transformedSets.operationsA;\n\n\t\t\t// After reversed operation has been transformed by all history operations, apply it.\n\t\t\tfor ( const operation of reversedOperations ) {\n\t\t\t\t// Before applying, add the operation to the `undoingBatch`.\n\t\t\t\tundoingBatch.addOperation( operation );\n\t\t\t\tmodel.applyOperation( operation );\n\n\t\t\t\tdocument.history.setOperationAsUndone( operationToUndo, operation );\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Normalizes list of ranges by joining intersecting or \"touching\" ranges.\n//\n// @param {Array.<module:engine/model/range~Range>} ranges\n//\nfunction normalizeRanges( ranges: Array<Range> ) {\n\tranges.sort( ( a, b ) => a.start.isBefore( b.start ) ? -1 : 1 );\n\n\tfor ( let i = 1; i < ranges.length; i++ ) {\n\t\tconst previousRange = ranges[ i - 1 ];\n\t\tconst joinedRange = previousRange.getJoined( ranges[ i ], true );\n\n\t\tif ( joinedRange ) {\n\t\t\t// Replace the ranges on the list with the new joined range.\n\t\t\ti--;\n\t\t\tranges.splice( i, 2, joinedRange );\n\t\t}\n\t}\n}\n\nfunction isRangeContainedByAnyOtherRange( range: Range, ranges: Array<Range> ) {\n\treturn ranges.some( otherRange => otherRange !== range && otherRange.containsRange( range, true ) );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undocommand\n */\n\nimport BaseCommand from './basecommand';\nimport type { Batch } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The undo command stores {@link module:engine/model/batch~Batch batches} applied to the\n * {@link module:engine/model/document~Document document} and is able to undo a batch by reversing it and transforming by\n * batches from {@link module:engine/model/document~Document#history history} that happened after the reversed batch.\n *\n * The undo command also takes care of restoring the {@link module:engine/model/document~Document#selection document selection}.\n *\n * @extends module:undo/basecommand~BaseCommand\n */\nexport default class UndoCommand extends BaseCommand {\n\t/**\n\t * Executes the command. This method reverts a {@link module:engine/model/batch~Batch batch} added to the command's stack, transforms\n\t * and applies the reverted version on the {@link module:engine/model/document~Document document} and removes the batch from the stack.\n\t * Then, it restores the {@link module:engine/model/document~Document#selection document selection}.\n\t *\n\t * @fires execute\n\t * @fires revert\n\t * @param {module:engine/model/batch~Batch} [batch] A batch that should be undone. If not set, the last added batch will be undone.\n\t */\n\tpublic override execute( batch: Batch | null = null ): void {\n\t\t// If batch is not given, set `batchIndex` to the last index in command stack.\n\t\tconst batchIndex = batch ? this._stack.findIndex( a => a.batch == batch ) : this._stack.length - 1;\n\n\t\tconst item = this._stack.splice( batchIndex, 1 )[ 0 ];\n\t\tconst undoingBatch = this.editor.model.createBatch( { isUndo: true } );\n\n\t\t// All changes have to be done in one `enqueueChange` callback so other listeners will not\n\t\t// step between consecutive operations, or won't do changes to the document before selection is properly restored.\n\t\tthis.editor.model.enqueueChange( undoingBatch, () => {\n\t\t\tthis._undo( item.batch, undoingBatch );\n\n\t\t\tconst operations = this.editor.model.document.history.getOperations( item.batch.baseVersion! );\n\t\t\tthis._restoreSelection( item.selection.ranges, item.selection.isBackward, operations );\n\n\t\t\tthis.fire<UndoCommandRevertEvent>( 'revert', item.batch, undoingBatch );\n\t\t} );\n\n\t\tthis.refresh();\n\t}\n}\n\n/**\n * Fired when execution of the command reverts some batch.\n *\n * @event revert\n */\nexport type UndoCommandRevertEvent = {\n\tname: 'revert';\n\targs: [ batch: Batch, undoingBatch: Batch ];\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/redocommand\n */\n\nimport BaseCommand from './basecommand';\n\n/**\n * The redo command stores {@link module:engine/model/batch~Batch batches} that were used to undo a batch by\n * {@link module:undo/undocommand~UndoCommand}. It is able to redo a previously undone batch by reversing the undoing\n * batches created by `UndoCommand`. The reversed batch is transformed by all the batches from\n * {@link module:engine/model/document~Document#history history} that happened after the reversed undo batch.\n *\n * The redo command also takes care of restoring the {@link module:engine/model/document~Document#selection document selection}.\n *\n * @extends module:undo/basecommand~BaseCommand\n */\nexport default class RedoCommand extends BaseCommand {\n\t/**\n\t * Executes the command. This method reverts the last {@link module:engine/model/batch~Batch batch} added to\n\t * the command's stack, applies the reverted and transformed version on the\n\t * {@link module:engine/model/document~Document document} and removes the batch from the stack.\n\t * Then, it restores the {@link module:engine/model/document~Document#selection document selection}.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst item = this._stack.pop()!;\n\t\tconst redoingBatch = this.editor.model.createBatch( { isUndo: true } );\n\n\t\t// All changes have to be done in one `enqueueChange` callback so other listeners will not step between consecutive\n\t\t// operations, or won't do changes to the document before selection is properly restored.\n\t\tthis.editor.model.enqueueChange( redoingBatch, () => {\n\t\t\tconst lastOperation = item.batch.operations[ item.batch.operations.length - 1 ];\n\t\t\tconst nextBaseVersion = lastOperation.baseVersion! + 1;\n\t\t\tconst operations = this.editor.model.document.history.getOperations( nextBaseVersion );\n\n\t\t\tthis._restoreSelection( item.selection.ranges, item.selection.isBackward, operations );\n\t\t\tthis._undo( item.batch, redoingBatch );\n\t\t} );\n\n\t\tthis.refresh();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undoediting\n */\n\nimport { Plugin, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport UndoCommand, { type UndoCommandRevertEvent } from './undocommand';\nimport RedoCommand from './redocommand';\n\nimport type {\n\tBatch,\n\tModelApplyOperationEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * The undo engine feature.\n *\n * It introduces the `'undo'` and `'redo'` commands to the editor.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class UndoEditing extends Plugin {\n\tprivate _undoCommand!: UndoCommand;\n\tprivate _redoCommand!: RedoCommand;\n\tprivate _batchRegistry: WeakSet<Batch>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'UndoEditing' {\n\t\treturn 'UndoEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t/**\n\t\t * The command that manages the undo {@link module:engine/model/batch~Batch batches} stack (history).\n\t\t * Created and registered during the {@link #init feature initialization}.\n\t\t *\n\t\t * @private\n\t\t * @member {module:undo/undocommand~UndoCommand} #_undoCommand\n\t\t */\n\n\t\t/**\n\t\t * The command that manages the redo {@link module:engine/model/batch~Batch batches} stack (history).\n\t\t * Created and registered during the {@link #init feature initialization}.\n\t\t *\n\t\t * @private\n\t\t * @member {module:undo/undocommand~UndoCommand} #_redoCommand\n\t\t */\n\n\t\t/**\n\t\t * Keeps track of which batches were registered in undo.\n\t\t *\n\t\t * @private\n\t\t * @member {WeakSet.<module:engine/model/batch~Batch>}\n\t\t */\n\t\tthis._batchRegistry = new WeakSet();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Create commands.\n\t\tthis._undoCommand = new UndoCommand( editor );\n\t\tthis._redoCommand = new RedoCommand( editor );\n\n\t\t// Register command to the editor.\n\t\teditor.commands.add( 'undo', this._undoCommand );\n\t\teditor.commands.add( 'redo', this._redoCommand );\n\n\t\tthis.listenTo<ModelApplyOperationEvent>( editor.model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\t// Do not register batch if the operation is not a document operation.\n\t\t\t// This prevents from creating empty undo steps, where all operations where non-document operations.\n\t\t\t// Non-document operations creates and alters content in detached tree fragments (for example, document fragments).\n\t\t\t// Most of time this is preparing data before it is inserted into actual tree (for example during copy & paste).\n\t\t\t// Such operations should not be reversed.\n\t\t\tif ( !operation.isDocumentOperation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst batch = operation.batch!;\n\n\t\t\tconst isRedoBatch = this._redoCommand._createdBatches.has( batch );\n\t\t\tconst isUndoBatch = this._undoCommand._createdBatches.has( batch );\n\t\t\tconst wasProcessed = this._batchRegistry.has( batch );\n\n\t\t\t// Skip the batch if it was already processed.\n\t\t\tif ( wasProcessed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Add the batch to the registry so it will not be processed again.\n\t\t\tthis._batchRegistry.add( batch );\n\n\t\t\tif ( !batch.isUndoable ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( isRedoBatch ) {\n\t\t\t\t// If this batch comes from `redoCommand`, add it to the `undoCommand` stack.\n\t\t\t\tthis._undoCommand.addBatch( batch );\n\t\t\t} else if ( !isUndoBatch ) {\n\t\t\t\t// If the batch comes neither  from `redoCommand` nor from `undoCommand` then it is a new, regular batch.\n\t\t\t\t// Add the batch to the `undoCommand` stack and clear the `redoCommand` stack.\n\t\t\t\tthis._undoCommand.addBatch( batch );\n\t\t\t\tthis._redoCommand.clearStack();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.listenTo<UndoCommandRevertEvent>( this._undoCommand, 'revert', ( evt, undoneBatch, undoingBatch ) => {\n\t\t\tthis._redoCommand.addBatch( undoingBatch );\n\t\t} );\n\n\t\teditor.keystrokes.set( 'CTRL+Z', 'undo' );\n\t\teditor.keystrokes.set( 'CTRL+Y', 'redo' );\n\t\teditor.keystrokes.set( 'CTRL+SHIFT+Z', 'redo' );\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface CommandsMap {\n\t\tundo: UndoCommand;\n\t\tredo: RedoCommand;\n\t}\n\n\tinterface PluginsMap {\n\t\t[ UndoEditing.pluginName ]: UndoEditing;\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m5.042 9.367 2.189 1.837a.75.75 0 0 1-.965 1.149l-3.788-3.18a.747.747 0 0 1-.21-.284.75.75 0 0 1 .17-.945L6.23 4.762a.75.75 0 1 1 .964 1.15L4.863 7.866h8.917A.75.75 0 0 1 14 7.9a4 4 0 1 1-1.477 7.718l.344-1.489a2.5 2.5 0 1 0 1.094-4.73l.008-.032H5.042z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m14.958 9.367-2.189 1.837a.75.75 0 0 0 .965 1.149l3.788-3.18a.747.747 0 0 0 .21-.284.75.75 0 0 0-.17-.945L13.77 4.762a.75.75 0 1 0-.964 1.15l2.331 1.955H6.22A.75.75 0 0 0 6 7.9a4 4 0 1 0 1.477 7.718l-.344-1.489A2.5 2.5 0 1 1 6.039 9.4l-.008-.032h8.927z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undoui\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { ButtonView } from '@ckeditor/ckeditor5-ui';\n\nimport undoIcon from '../theme/icons/undo.svg';\nimport redoIcon from '../theme/icons/redo.svg';\n\n/**\n * The undo UI feature. It introduces the `'undo'` and `'redo'` buttons to the editor.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class UndoUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'UndoUI' {\n\t\treturn 'UndoUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst locale = editor.locale;\n\t\tconst t = editor.t;\n\n\t\tconst localizedUndoIcon = locale.uiLanguageDirection == 'ltr' ? undoIcon : redoIcon;\n\t\tconst localizedRedoIcon = locale.uiLanguageDirection == 'ltr' ? redoIcon : undoIcon;\n\n\t\tthis._addButton( 'undo', t( 'Undo' ), 'CTRL+Z', localizedUndoIcon );\n\t\tthis._addButton( 'redo', t( 'Redo' ), 'CTRL+Y', localizedRedoIcon );\n\t}\n\n\t/**\n\t * Creates a button for the specified command.\n\t *\n\t * @private\n\t * @param {String} name Command name.\n\t * @param {String} label Button label.\n\t * @param {String} keystroke Command keystroke.\n\t * @param {String} Icon Source of the icon.\n\t */\n\tprivate _addButton( name: 'undo' | 'redo', label: string, keystroke: string, Icon: string ) {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( name, locale => {\n\t\t\tconst command = editor.commands.get( name )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel,\n\t\t\t\ticon: Icon,\n\t\t\t\tkeystroke,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( name );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ UndoUI.pluginName ]: UndoUI;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undo\n */\n\nimport { Plugin, type PluginDependencies } from '@ckeditor/ckeditor5-core';\nimport UndoEditing from './undoediting';\nimport UndoUI from './undoui';\n\n/**\n * The undo feature.\n *\n * This is a \"glue\" plugin which loads the {@link module:undo/undoediting~UndoEditing undo editing feature}\n * and the {@link module:undo/undoui~UndoUI undo UI feature}.\n *\n * Below is an explanation of the undo mechanism working together with {@link module:engine/model/history~History History}:\n *\n * Whenever an {@link module:engine/model/operation/operation~Operation operation} is applied to the\n * {@link module:engine/model/document~Document document}, it is saved to `History` as is.\n * The {@link module:engine/model/batch~Batch batch} that owns that operation is also saved, in\n * {@link module:undo/undocommand~UndoCommand}, together with the selection that was present in the document before the\n * operation was applied. A batch is saved instead of the operation because changes are undone batch-by-batch, not operation-by-operation\n * and a batch is seen as one undo step.\n *\n * After changes happen to the document, the `History` and `UndoCommand` stack can be represented as follows:\n *\n *\t\t    History                            Undo stack\n *\t\t==============             ==================================\n *\t\t[operation A1]                         [batch A]\n *\t\t[operation B1]                         [batch B]\n *\t\t[operation B2]                         [batch C]\n *\t\t[operation C1]\n *\t\t[operation C2]\n *\t\t[operation B3]\n *\t\t[operation C3]\n *\n * Where operations starting with the same letter are from same batch.\n *\n * Undoing a batch means that a set of operations which will reverse the effects of that batch needs to be generated.\n * For example, if a batch added several letters, undoing the batch should remove them. It is important to apply undoing\n * operations in the reversed order, so if a batch has operation `X`, `Y`, `Z`, reversed operations `Zr`, `Yr` and `Xr`\n * need to be applied. Otherwise reversed operation `Xr` would operate on a wrong document state, because operation `X`\n * does not know that operations `Y` and `Z` happened.\n *\n * After operations from an undone batch got {@link module:engine/model/operation/operation~Operation#getReversed reversed},\n * one needs to make sure if they are ready to be applied. In the scenario above, operation `C3` is the last operation and `C3r`\n * bases on up-to-date document state, so it can be applied to the document.\n *\n *\t\t     History                             Undo stack\n *\t\t=================             ==================================\n *\t\t[ operation A1  ]                      [  batch A  ]\n *\t\t[ operation B1  ]                      [  batch B  ]\n *\t\t[ operation B2  ]             [   processing undoing batch C   ]\n *\t\t[ operation C1  ]\n *\t\t[ operation C2  ]\n *\t\t[ operation B3  ]\n *\t\t[ operation C3  ]\n *\t\t[ operation C3r ]\n *\n * Next is operation `C2`, reversed to `C2r`. `C2r` bases on `C2`, so it bases on the wrong document state. It needs to be\n * transformed by operations from history that happened after it, so it \"knows\" about them. Let us assume that `C2' = C2r * B3 * C3 * C3r`,\n * where `*` means \"transformed by\". Rest of operations from that batch are processed in the same fashion.\n *\n *\t\t     History                             Undo stack                                      Redo stack\n *\t\t=================             ==================================             ==================================\n *\t\t[ operation A1  ]                      [  batch A  ]                                    [ batch Cr ]\n *\t\t[ operation B1  ]                      [  batch B  ]\n *\t\t[ operation B2  ]\n *\t\t[ operation C1  ]\n *\t\t[ operation C2  ]\n *\t\t[ operation B3  ]\n *\t\t[ operation C3  ]\n *\t\t[ operation C3r ]\n *\t\t[ operation C2' ]\n *\t\t[ operation C1' ]\n *\n * Selective undo works on the same basis, however, instead of undoing the last batch in the undo stack, any batch can be undone.\n * The same algorithm applies: operations from a batch (i.e. `A1`) are reversed and then transformed by operations stored in history.\n *\n * Redo also is very similar to undo. It has its own stack that is filled with undoing (reversed batches). Operations from\n * the batch that is re-done are reversed-back, transformed in proper order and applied to the document.\n *\n *\t\t     History                             Undo stack                                      Redo stack\n *\t\t=================             ==================================             ==================================\n *\t\t[ operation A1  ]                      [  batch A  ]\n *\t\t[ operation B1  ]                      [  batch B  ]\n *\t\t[ operation B2  ]                      [ batch Crr ]\n *\t\t[ operation C1  ]\n *\t\t[ operation C2  ]\n *\t\t[ operation B3  ]\n *\t\t[ operation C3  ]\n *\t\t[ operation C3r ]\n *\t\t[ operation C2' ]\n *\t\t[ operation C1' ]\n *\t\t[ operation C1'r]\n *\t\t[ operation C2'r]\n *\t\t[ operation C3rr]\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Undo extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ UndoEditing, UndoUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Undo' {\n\t\treturn 'Undo';\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ Undo.pluginName ]: Undo;\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M8.69 14.915c.053.052.173.083.36.093a.366.366 0 0 1 .345.485l-.003.01a.738.738 0 0 1-.697.497h-2.67a.374.374 0 0 1-.353-.496l.013-.038a.681.681 0 0 1 .644-.458c.197-.012.325-.043.386-.093a.28.28 0 0 0 .072-.11L9.592 4.5H6.269c-.359-.017-.609.013-.75.09-.142.078-.289.265-.442.563-.192.29-.516.464-.864.464H4.17a.43.43 0 0 1-.407-.569L4.46 3h13.08l-.62 2.043a.81.81 0 0 1-.775.574h-.114a.486.486 0 0 1-.486-.486c.001-.284-.054-.464-.167-.54-.112-.076-.367-.106-.766-.091h-3.28l-2.68 10.257c-.006.074.007.127.038.158zM3 17h8a.5.5 0 1 1 0 1H3a.5.5 0 1 1 0-1zm11.299 1.17a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.06-1.06l1.415 1.414 1.414-1.415a.75.75 0 1 1 1.06 1.06l-1.413 1.415 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414-1.414 1.414z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformatui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport removeFormatIcon from '../theme/icons/remove-format.svg';\n\nconst REMOVE_FORMAT = 'removeFormat';\n\n/**\n * The remove format UI plugin. It registers the `'removeFormat'` button which can be\n * used in the toolbar.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class RemoveFormatUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'RemoveFormatUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( REMOVE_FORMAT, locale => {\n\t\t\tconst command = editor.commands.get( REMOVE_FORMAT );\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Remove Format' ),\n\t\t\t\ticon: removeFormatIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute the command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( REMOVE_FORMAT );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformatcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The remove format command.\n *\n * It is used by the {@link module:remove-format/removeformat~RemoveFormat remove format feature}\n * to clear the formatting in the selection.\n *\n *\t\teditor.execute( 'removeFormat' );\n *\n * @extends module:core/command~Command\n */\nexport default class RemoveFormatCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\trefresh() {\n\t\tconst model = this.editor.model;\n\n\t\tthis.isEnabled = !!first( this._getFormattingItems( model.document.selection, model.schema ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\texecute() {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of this._getFormattingItems( model.document.selection, schema ) ) {\n\t\t\t\tif ( item.is( 'selection' ) ) {\n\t\t\t\t\tfor ( const attributeName of this._getFormattingAttributes( item, schema ) ) {\n\t\t\t\t\t\twriter.removeSelectionAttribute( attributeName );\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// Workaround for items with multiple removable attributes. See\n\t\t\t\t\t// https://github.com/ckeditor/ckeditor5-remove-format/pull/1#pullrequestreview-220515609\n\t\t\t\t\tconst itemRange = writer.createRangeOn( item );\n\n\t\t\t\t\tfor ( const attributeName of this._getFormattingAttributes( item, schema ) ) {\n\t\t\t\t\t\twriter.removeAttribute( attributeName, itemRange );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns an iterable of items in a selection (including the selection itself) that have formatting model\n\t * attributes to be removed by the feature.\n\t *\n\t * @protected\n\t * @param {module:engine/model/documentselection~DocumentSelection} selection\n\t * @param {module:engine/model/schema~Schema} schema The schema describing the item.\n\t * @returns {Iterable.<module:engine/model/item~Item>|Iterable.<module:engine/model/documentselection~DocumentSelection>}\n\t */\n\t* _getFormattingItems( selection, schema ) {\n\t\tconst itemHasRemovableFormatting = item => {\n\t\t\treturn !!first( this._getFormattingAttributes( item, schema ) );\n\t\t};\n\n\t\t// Check formatting on selected items that are not blocks.\n\t\tfor ( const curRange of selection.getRanges() ) {\n\t\t\tfor ( const item of curRange.getItems() ) {\n\t\t\t\tif ( !schema.isBlock( item ) && itemHasRemovableFormatting( item ) ) {\n\t\t\t\t\tyield item;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Check formatting from selected blocks.\n\t\tfor ( const block of selection.getSelectedBlocks() ) {\n\t\t\tif ( itemHasRemovableFormatting( block ) ) {\n\t\t\t\tyield block;\n\t\t\t}\n\t\t}\n\n\t\t// Finally the selection might be formatted as well, so make sure to check it.\n\t\tif ( itemHasRemovableFormatting( selection ) ) {\n\t\t\tyield selection;\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterable of formatting attributes of a given model item.\n\t *\n\t * **Note:** Formatting items have the `isFormatting` property set to `true`.\n\t *\n\t * @protected\n\t * @param {module:engine/model/item~Item|module:engine/model/documentselection~DocumentSelection} item\n\t * @param {module:engine/model/schema~Schema} schema The schema describing the item.\n\t * @returns {Iterable.<String>} The names of formatting attributes found in a given item.\n\t */\n\t* _getFormattingAttributes( item, schema ) {\n\t\tfor ( const [ attributeName ] of item.getAttributes() ) {\n\t\t\tconst attributeProperties = schema.getAttributeProperties( attributeName );\n\n\t\t\tif ( attributeProperties && attributeProperties.isFormatting ) {\n\t\t\t\tyield attributeName;\n\t\t\t}\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformatediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport RemoveFormatCommand from './removeformatcommand';\n\n/**\n * The remove format editing plugin.\n *\n * It registers the {@link module:remove-format/removeformatcommand~RemoveFormatCommand removeFormat} command.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class RemoveFormatEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'RemoveFormatEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\teditor.commands.add( 'removeFormat', new RemoveFormatCommand( editor ) );\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport Command from '@ckeditor/ckeditor5-core/src/command';\n\nexport default class MentionCustomization extends Plugin {\n\tafterInit() {\n\t\tconst editor = this.editor;\n\t\t// override standard mention command (see https://github.com/ckeditor/ckeditor5/issues/6470)\n\t\teditor.commands.add('mention', new CustomMentionCommand(editor));\n\t}\n}\n\nclass CustomMentionCommand extends Command {\n\texecute(options) {\n\t\tconst {model} = this.editor;\n\t\tconst {document} = model;\n\t\tconst {selection} = document;\n\t\tconst {mention} = options;\n\n\t\tconst range = options.range || selection.getFirstRange();\n\n\t\tif (mention.id.startsWith('#') || mention.id.startsWith('~')) {\n\t\t\tmodel.change(writer => {\n\t\t\t\t// Replace a range with the text with a mention.\n\t\t\t\tmodel.insertContent( writer.createText( mention.id, {} ), range );\n\t\t\t});\n\t\t}\n\t\telse if (mention.action === 'create-note') {\n\t\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\tcomponent.createNoteForReferenceLink(mention.noteTitle).then(notePath => {\n\t\t\t\tthis.insertReference(range, notePath);\n\t\t\t});\n\t\t}\n\t\telse {\n\t\t\tthis.insertReference(range, options.mention.notePath);\n\t\t}\n\t}\n\n\tinsertReference(range, notePath) {\n\t\tconst {model} = this.editor;\n\n\t\tmodel.change(writer => {\n\t\t\t// override the selection or at least the beginning @ character\n\t\t\tmodel.insertContent(writer.createText('', {}), range);\n\n\t\t\tthis.editor.execute('referenceLink', {notePath: notePath});\n\t\t});\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport FileRepository from '@ckeditor/ckeditor5-upload/src/filerepository';\n\nexport default class UploadimagePlugin extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FileRepository ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'UploadimagePlugin';\n\t}\n\n\tinit() {\n\t\tthis.editor.plugins.get('FileRepository').createUploadAdapter = loader => new Adapter(loader);\n\t}\n}\n\nclass Adapter {\n\t/**\n\t * Creates a new adapter instance.\n\t *\n\t * @param {module:upload/filerepository~FileLoader} loader\n\t */\n\tconstructor(loader) {\n\t\t/**\n\t\t * FileLoader instance to use during the upload.\n\t\t *\n\t\t * @member {module:upload/filerepository~FileLoader} #loader\n\t\t */\n\t\tthis.loader = loader;\n\t}\n\n\t/**\n\t * Starts the upload process.\n\t *\n\t * @see module:upload/filerepository~Adapter#upload\n\t * @returns {Promise}\n\t */\n\tupload() {\n\t\treturn this.loader.file\n\t\t\t.then( file => new Promise( ( resolve, reject ) => {\n\t\t\t\tthis._initRequest().then(() => {\n\t\t\t\t\tthis._initListeners( resolve, reject, file );\n\t\t\t\t\tthis._sendRequest( file );\n\t\t\t\t});\n\t\t\t} ) );\n\t}\n\n\t/**\n\t * Aborts the upload process.\n\t *\n\t * @see module:upload/filerepository~Adapter#abort\n\t * @returns {Promise}\n\t */\n\tabort() {\n\t\tif (this.xhr) {\n\t\t\tthis.xhr.abort();\n\t\t}\n\t}\n\n\t/**\n\t * Initializes the XMLHttpRequest object.\n\t *\n\t * @private\n\t */\n\t_initRequest() {\n\t\treturn glob.getHeaders().then(headers => {\n\t\t\tconst xhr = this.xhr = new XMLHttpRequest();\n\n\t\t\tconst {noteId} = glob.getActiveTabNote();\n\n\t\t\t// this must be relative path\n\t\t\tconst url = \"api/images?noteId=\" + noteId;\n\n\t\t\txhr.open('POST', url, true);\n\t\t\txhr.responseType = 'json';\n\n\t\t\tfor (const headerName in headers) {\n\t\t\t\txhr.setRequestHeader(headerName, headers[headerName]);\n\t\t\t}\n\t\t});\n\t}\n\n\t/**\n\t * Initializes XMLHttpRequest listeners.\n\t *\n\t * @private\n\t * @param {Function} resolve Callback function to be called when the request is successful.\n\t * @param {Function} reject Callback function to be called when the request cannot be completed.\n\t */\n\tasync _initListeners(resolve, reject) {\n\t\tconst xhr = this.xhr;\n\t\tconst loader = this.loader;\n\t\tconst file = await loader.file;\n\t\tconst genericError = 'Cannot upload file:' + ` ${file.name}.`;\n\n\t\txhr.addEventListener('error', () => reject(genericError));\n\t\txhr.addEventListener('abort', () => reject());\n\t\txhr.addEventListener('load', () => {\n\t\t\tconst response = xhr.response;\n\n\t\t\tif (!response || !response.uploaded) {\n\t\t\t\treturn reject(response && response.error && response.error.message ? response.error.message : genericError);\n\t\t\t}\n\n\t\t\tresolve({\n\t\t\t\tdefault: response.url\n\t\t\t});\n\t\t});\n\n\t\t// Upload progress when it's supported.\n\t\t/* istanbul ignore else */\n\t\tif (xhr.upload) {\n\t\t\txhr.upload.addEventListener('progress', evt => {\n\t\t\t\tif (evt.lengthComputable) {\n\t\t\t\t\tloader.uploadTotal = evt.total;\n\t\t\t\t\tloader.uploaded = evt.loaded;\n\t\t\t\t}\n\t\t\t});\n\t\t}\n\t}\n\n\t/**\n\t * Prepares the data and sends the request.\n\t *\n\t * @private\n\t */\n\tasync _sendRequest() {\n\t\t// Prepare form data.\n\t\tconst data = new FormData();\n\t\tdata.append('upload', await this.loader.file);\n\n\t\t// Send request.\n\t\tthis.xhr.send(data);\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport {toWidget} from '@ckeditor/ckeditor5-widget/src/utils';\nimport Widget from '@ckeditor/ckeditor5-widget/src/widget';\nimport Command from '@ckeditor/ckeditor5-core/src/command';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\nimport noteIcon from './icons/note.svg';\n\nexport default class IncludeNote extends Plugin {\n\tstatic get requires() {\n\t\treturn [ IncludeNoteEditing, IncludeNoteUI ];\n\t}\n}\n\nclass IncludeNoteUI extends Plugin {\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// The \"includeNote\" button must be registered among the UI components of the editor\n\t\t// to be displayed in the toolbar.\n\t\teditor.ui.componentFactory.add( 'includeNote', locale => {\n\t\t\t// The state of the button will be bound to the widget command.\n\t\t\tconst command = editor.commands.get( 'insertIncludeNote' );\n\n\t\t\t// The button will be an instance of ButtonView.\n\t\t\tconst buttonView = new ButtonView( locale );\n\n\t\t\tbuttonView.set( {\n\t\t\t\t// The t() function helps localize the editor. All strings enclosed in t() can be\n\t\t\t\t// translated and change when the language of the editor changes.\n\t\t\t\tlabel: t( 'Include note' ),\n\t\t\t\ticon: noteIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\t// Bind the state of the button to the command.\n\t\t\tbuttonView.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute the command when the button is clicked (executed).\n\t\t\tthis.listenTo( buttonView, 'execute', () => editor.execute( 'insertIncludeNote' ) );\n\n\t\t\treturn buttonView;\n\t\t} );\n\t}\n}\n\nclass IncludeNoteEditing extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Widget ];\n\t}\n\n\tinit() {\n\t\tthis._defineSchema();\n\t\tthis._defineConverters();\n\n\t\tthis.editor.commands.add( 'insertIncludeNote', new InsertIncludeNoteCommand( this.editor ) );\n\t}\n\n\t_defineSchema() {\n\t\tconst schema = this.editor.model.schema;\n\n\t\tschema.register( 'includeNote', {\n\t\t\t// Behaves like a self-contained object (e.g. an image).\n\t\t\tisObject: true,\n\n\t\t\tallowAttributes: [ 'noteId', 'boxSize' ],\n\n\t\t\t// Allow in places where other blocks are allowed (e.g. directly in the root).\n\t\t\tallowWhere: '$block'\n\t\t} );\n\t}\n\n\t_defineConverters() {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\n\t\t// <includeNote> converters\n\t\tconversion.for( 'upcast' ).elementToElement( {\n\t\t\tmodel: ( viewElement, { writer: modelWriter } ) => {\n\n\t\t\t\treturn modelWriter.createElement( 'includeNote', {\n\t\t\t\t\tnoteId: viewElement.getAttribute( 'data-note-id' ),\n\t\t\t\t\tboxSize: viewElement.getAttribute( 'data-box-size' ),\n\t\t\t\t} );\n\t\t\t},\n\t\t\tview: {\n\t\t\t\tname: 'section',\n\t\t\t\tclasses: 'include-note'\n\t\t\t}\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'includeNote',\n\t\t\tview: ( modelElement, { writer: viewWriter } ) => {\n\t\t\t\t// it would make sense here to downcast to <iframe>, with this even HTML export can support note inclusion\n\t\t\t\treturn viewWriter.createContainerElement( 'section', {\n\t\t\t\t\tclass: 'include-note',\n\t\t\t\t\t'data-note-id': modelElement.getAttribute( 'noteId' ),\n\t\t\t\t\t'data-box-size': modelElement.getAttribute( 'boxSize' ),\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'includeNote',\n\t\t\tview: ( modelElement, { writer: viewWriter } ) => {\n\n\t\t\t\tconst noteId = modelElement.getAttribute( 'noteId' );\n\t\t\t\tconst boxSize = modelElement.getAttribute( 'boxSize' );\n\n\t\t\t\tconst section = viewWriter.createContainerElement( 'section', {\n\t\t\t\t\tclass: 'include-note box-size-' + boxSize,\n\t\t\t\t\t'data-note-id': noteId,\n\t\t\t\t\t'data-box-size': boxSize\n\t\t\t\t} );\n\n\t\t\t\tconst includedNoteWrapper = viewWriter.createUIElement( 'div', {\n\t\t\t\t\tclass: 'include-note-wrapper'\n\t\t\t\t}, function( domDocument ) {\n\t\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\t\tconst editorEl = editor.editing.view.getDomRoot();\n\t\t\t\t\tconst component = glob.getComponentByEl( editorEl );\n\n\t\t\t\t\tcomponent.loadIncludedNote( noteId, $( domElement ) );\n\n\t\t\t\t\tpreventCKEditorHandling( domElement, editor );\n\n\t\t\t\t\treturn domElement;\n\t\t\t\t} );\n\n\t\t\t\tviewWriter.insert( viewWriter.createPositionAt( section, 0 ), includedNoteWrapper );\n\n\t\t\t\treturn toWidget( section, viewWriter, { label: 'include note widget' } );\n\t\t\t}\n\t\t} );\n\t}\n}\n\nclass InsertIncludeNoteCommand extends Command {\n\texecute() {\n\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\tcomponent.triggerCommand('addIncludeNoteToText');\n\t}\n\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst allowedIn = model.schema.findAllowedParent( selection.getFirstPosition(), 'includeNote' );\n\n\t\tthis.isEnabled = allowedIn !== null;\n\t}\n}\n\n/**\n * Hack coming from https://github.com/ckeditor/ckeditor5/issues/4465\n * Source issue: https://github.com/zadam/trilium/issues/1117\n */\nfunction preventCKEditorHandling( domElement, editor ) {\n\t// Prevent the editor from listening on below events in order to stop rendering selection.\n\n\t// commenting out click events to allow link click handler to still work\n\t//domElement.addEventListener( 'click', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\tdomElement.addEventListener( 'mousedown', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\tdomElement.addEventListener( 'focus', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\n\t// Prevents TAB handling or other editor keys listeners which might be executed on editors selection.\n\tdomElement.addEventListener( 'keydown', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\n\tfunction stopEventPropagationAndHackRendererFocus( evt ) {\n\t\tevt.stopPropagation();\n\t\t// This prevents rendering changed view selection thus preventing to changing DOM selection while inside a widget.\n\t\teditor.editing.view._renderer.isFocused = false;\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"24\\\" height=\\\"24\\\" viewBox=\\\"0 0 24 24\\\"><path d=\\\"M19,3H5C3.897,3,3,3.897,3,5v14c0,1.103,0.897,2,2,2h8c0.131,0,0.26-0.026,0.381-0.076s0.232-0.123,0.326-0.217l7-7 c0.086-0.086,0.147-0.187,0.196-0.293c0.014-0.03,0.022-0.061,0.033-0.093c0.028-0.084,0.046-0.17,0.051-0.259 C20.989,13.041,21,13.021,21,13V5C21,3.897,20.103,3,19,3z M5,5h14v7h-6c-0.553,0-1,0.448-1,1v6H5V5z M14,17.586V14h3.586 L14,17.586z\\\"/></svg>\";","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport { toWidget, viewToModelPositionOutsideModelElement } from '@ckeditor/ckeditor5-widget/src/utils';\nimport Widget from '@ckeditor/ckeditor5-widget/src/widget';\nimport Command from '@ckeditor/ckeditor5-core/src/command';\n\nexport default class ReferenceLink extends Plugin {\n\tstatic get requires() {\n\t\treturn [ ReferenceLinkEditing ];\n\t}\n}\n\nclass ReferenceLinkCommand extends Command {\n\texecute( { notePath } ) {\n\t\tif (!notePath || !notePath.trim()) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\n\t\tconst noteId = notePath.split('/').pop();\n\n\t\t// make sure the referenced note is in cache before adding reference element\n\t\tglob.treeCache.getNote(noteId, true).then(() => {\n\t\t\teditor.model.change(writer => {\n\t\t\t\tconst placeholder = writer.createElement('reference', {notePath: notePath});\n\n\t\t\t\t// ... and insert it into the document.\n\t\t\t\teditor.model.insertContent(placeholder);\n\n\t\t\t\t// Put the selection on the inserted element.\n\t\t\t\twriter.setSelection(placeholder, 'after');\n\t\t\t});\n\t\t});\n\t}\n\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\tthis.isEnabled = model.schema.checkChild(selection.focus.parent, 'reference');\n\t}\n}\n\nclass ReferenceLinkEditing extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Widget ];\n\t}\n\n\tinit() {\n\t\tthis._defineSchema();\n\t\tthis._defineConverters();\n\n\t\tthis.editor.commands.add( 'referenceLink', new ReferenceLinkCommand( this.editor ) );\n\n\t\tthis.editor.editing.mapper.on(\n\t\t\t'viewToModelPosition',\n\t\t\tviewToModelPositionOutsideModelElement( this.editor.model,\n\t\t\t\t\tviewElement => viewElement.hasClass( 'reference-link' ) )\n\t\t);\n\t}\n\n\t_defineSchema() {\n\t\tconst schema = this.editor.model.schema;\n\n\t\tschema.register( 'reference', {\n\t\t\t// Allow wherever text is allowed:\n\t\t\tallowWhere: '$text',\n\n\t\t\tisInline: true,\n\n\t\t\t// The inline widget is self-contained so it cannot be split by the caret and it can be selected:\n\t\t\tisObject: true,\n\n\t\t\tallowAttributes: [ 'notePath' ]\n\t\t} );\n\t}\n\n\t_defineConverters() {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\n\t\tconversion.for( 'upcast' ).elementToElement( {\n\t\t\tview: {\n\t\t\t\tname: 'a',\n\t\t\t\tclasses: [ 'reference-link' ]\n\t\t\t},\n\t\t\tmodel: ( viewElement, { writer: modelWriter } ) => {\n\t\t\t\tlet notePath = viewElement.getAttribute('data-note-path');\n\n\t\t\t\tif (!notePath) {\n\t\t\t\t\tnotePath = viewElement.getAttribute('href');\n\t\t\t\t}\n\n\t\t\t\treturn modelWriter.createElement( 'reference', { notePath: notePath } );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'reference',\n\t\t\tview: ( modelItem, { writer: viewWriter } ) => {\n\t\t\t\tlet notePath = modelItem.getAttribute( 'notePath' );\n\n\t\t\t\tif (!notePath) {\n\t\t\t\t\tnotePath = modelItem.getAttribute( 'href' );\n\t\t\t\t}\n\n\t\t\t\tconst referenceLinkView = viewWriter.createContainerElement( 'a', {\n\t\t\t\t\t\thref: 'javascript:',\n\t\t\t\t\t\tclass: 'reference-link',\n\t\t\t\t\t\t'data-note-path': notePath\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\trenderUnsafeAttributes: [ 'href' ]\n\t\t\t\t\t} );\n\n\t\t\t\tconst noteTitleView = viewWriter.createUIElement('span', {}, function( domDocument ) {\n\t\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\t\t\t\t\tconst noteId = notePath.split('/').pop();\n\n\t\t\t\t\tconst editorEl = editor.editing.view.getDomRoot();\n\t\t\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\t\t\tcomponent.loadReferenceLinkTitle(noteId, $(domElement));\n\n\t\t\t\t\treturn domElement;\n\t\t\t\t});\n\n\t\t\t\tviewWriter.insert( viewWriter.createPositionAt( referenceLinkView, 0 ), noteTitleView );\n\n\t\t\t\t// Enable widget handling on a reference element inside the editing view.\n\t\t\t\treturn toWidget( referenceLinkView, viewWriter );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'reference',\n\t\t\tview: ( modelItem, { writer: viewWriter } ) => {\n\t\t\t\tlet notePath = modelItem.getAttribute( 'notePath' );\n\n\t\t\t\tif (!notePath) {\n\t\t\t\t\tnotePath = modelItem.getAttribute( 'href' );\n\t\t\t\t}\n\n\t\t\t\tconst referenceLinkView = viewWriter.createContainerElement( 'a', {\n\t\t\t\t\thref: '#' + notePath,\n\t\t\t\t\tclass: 'reference-link',\n\t\t\t\t\t'data-note-path': notePath\n\t\t\t\t} );\n\n\t\t\t\tconst noteId = notePath.split('/').pop();\n\t\t\t\t// needs to be sync\n\t\t\t\tconst note = glob.treeCache.getNoteFromCache(noteId);\n\n\t\t\t\tif (note) {\n\t\t\t\t\tconst innerText = viewWriter.createText(note.title);\n\t\t\t\t\tviewWriter.insert(viewWriter.createPositionAt(referenceLinkView, 0), innerText);\n\t\t\t\t}\n\n\t\t\t\treturn referenceLinkView;\n\t\t\t}\n\t\t} );\n\t}\n}\n","import global from '@ckeditor/ckeditor5-utils/src/dom/global';\nimport BalloonPanelView from '@ckeditor/ckeditor5-ui/src/panel/balloon/balloonpanelview';\n\nexport function getSelectedMathModelWidget( selection ) {\n\tconst selectedElement = selection.getSelectedElement();\n\n\tif ( selectedElement && ( selectedElement.is( 'element', 'mathtex-inline' ) || selectedElement.is( 'element', 'mathtex-display' ) ) ) {\n\t\treturn selectedElement;\n\t}\n\n\treturn null;\n}\n\n// Simple MathJax 3 version check\nexport function isMathJaxVersion3( version ) {\n\treturn version && typeof version === 'string' && version.split( '.' ).length === 3 && version.split( '.' )[ 0 ] === '3';\n}\n\n// Check if equation has delimiters.\nexport function hasDelimiters( text ) {\n\treturn text.match( /^(\\\\\\[.*?\\\\\\]|\\\\\\(.*?\\\\\\))$/ );\n}\n\n// Find delimiters count\nexport function delimitersCounts( text ) {\n\treturn text.match( /(\\\\\\[|\\\\\\]|\\\\\\(|\\\\\\))/g ).length;\n}\n\n// Extract delimiters and figure display mode for the model\nexport function extractDelimiters( equation ) {\n\tequation = equation.trim();\n\n\t// Remove delimiters (e.g. \\( \\) or \\[ \\])\n\tconst hasInlineDelimiters = equation.includes( '\\\\(' ) && equation.includes( '\\\\)' );\n\tconst hasDisplayDelimiters = equation.includes( '\\\\[' ) && equation.includes( '\\\\]' );\n\tif ( hasInlineDelimiters || hasDisplayDelimiters ) {\n\t\tequation = equation.substring( 2, equation.length - 2 ).trim();\n\t}\n\n\treturn {\n\t\tequation,\n\t\tdisplay: hasDisplayDelimiters\n\t};\n}\n\nexport async function renderEquation(\n\tequation, element, engine = 'katex', lazyLoad, display = false, preview = false, previewUid, previewClassName = [],\n\tkatexRenderOptions = {}\n) {\n\tif ( engine === 'mathjax' && typeof MathJax !== 'undefined' ) {\n\t\tif ( isMathJaxVersion3( MathJax.version ) ) {\n\t\t\tselectRenderMode( element, preview, previewUid, previewClassName, el => {\n\t\t\t\trenderMathJax3( equation, el, display, () => {\n\t\t\t\t\tif ( preview ) {\n\t\t\t\t\t\tmoveAndScaleElement( element, el );\n\t\t\t\t\t\tel.style.visibility = 'visible';\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t} );\n\t\t} else {\n\t\t\tselectRenderMode( element, preview, previewUid, previewClassName, el => {\n\t\t\t\t// Fixme: MathJax typesetting cause occasionally math processing error without asynchronous call\n\t\t\t\tglobal.window.setTimeout( () => {\n\t\t\t\t\trenderMathJax2( equation, el, display );\n\n\t\t\t\t\t// Move and scale after rendering\n\t\t\t\t\tif ( preview ) {\n\t\t\t\t\t\t// eslint-disable-next-line\n\t\t\t\t\t\tMathJax.Hub.Queue( () => {\n\t\t\t\t\t\t\tmoveAndScaleElement( element, el );\n\t\t\t\t\t\t\tel.style.visibility = 'visible';\n\t\t\t\t\t\t} );\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\t} else if ( engine === 'katex' && typeof katex !== 'undefined' ) {\n\t\tselectRenderMode( element, preview, previewUid, previewClassName, el => {\n\t\t\tkatex.render( equation, el, {\n\t\t\t\tthrowOnError: false,\n\t\t\t\tdisplayMode: display,\n\t\t\t\t...katexRenderOptions\n\t\t\t} );\n\t\t\tif ( preview ) {\n\t\t\t\tmoveAndScaleElement( element, el );\n\t\t\t\tel.style.visibility = 'visible';\n\t\t\t}\n\t\t} );\n\t} else if ( typeof engine === 'function' ) {\n\t\tengine( equation, element, display );\n\t} else {\n\t\tif ( typeof lazyLoad !== 'undefined' ) {\n\t\t\ttry {\n\t\t\t\tif ( !global.window.CKEDITOR_MATH_LAZY_LOAD ) {\n\t\t\t\t\tglobal.window.CKEDITOR_MATH_LAZY_LOAD = lazyLoad();\n\t\t\t\t}\n\t\t\t\telement.innerHTML = equation;\n\t\t\t\tawait global.window.CKEDITOR_MATH_LAZY_LOAD;\n\t\t\t\trenderEquation( equation, element, engine, undefined, display, preview, previewUid, previewClassName, katexRenderOptions );\n\t\t\t}\n\t\t\tcatch ( err ) {\n\t\t\t\telement.innerHTML = equation;\n\t\t\t\tconsole.error( `math-tex-typesetting-lazy-load-failed: Lazy load failed: ${ err }` );\n\t\t\t}\n\t\t} else {\n\t\t\telement.innerHTML = equation;\n\t\t\tconsole.warn( `math-tex-typesetting-missing: Missing the mathematical typesetting engine (${ engine }) for tex.` );\n\t\t}\n\t}\n}\n\nexport function getBalloonPositionData( editor ) {\n\tconst view = editor.editing.view;\n\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\n\tconst selectedElement = view.document.selection.getSelectedElement();\n\tif ( selectedElement ) {\n\t\treturn {\n\t\t\ttarget: view.domConverter.viewToDom( selectedElement ),\n\t\t\tpositions: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\t\tdefaultPositions.southArrowNorthEast\n\t\t\t]\n\t\t};\n\t}\n\telse {\n\t\tconst viewDocument = view.document;\n\t\treturn {\n\t\t\ttarget: view.domConverter.viewRangeToDom( viewDocument.selection.getFirstRange() ),\n\t\t\tpositions: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\t\tdefaultPositions.southArrowNorthEast\n\t\t\t]\n\t\t};\n\t}\n}\n\nfunction selectRenderMode( element, preview, previewUid, previewClassName, cb ) {\n\tif ( preview ) {\n\t\tcreatePreviewElement( element, previewUid, previewClassName, previewEl => {\n\t\t\tcb( previewEl );\n\t\t} );\n\t} else {\n\t\tcb( element );\n\t}\n}\n\nfunction renderMathJax3( equation, element, display, cb ) {\n\tlet promiseFunction = undefined;\n\tif ( typeof MathJax.tex2chtmlPromise !== 'undefined' ) {\n\t\tpromiseFunction = MathJax.tex2chtmlPromise;\n\t} else if ( typeof MathJax.tex2svgPromise !== 'undefined' ) {\n\t\tpromiseFunction = MathJax.tex2svgPromise;\n\t}\n\n\tif ( typeof promiseFunction !== 'undefined' ) {\n\t\tpromiseFunction( equation, { display } ).then( node => {\n\t\t\tif ( element.firstChild ) {\n\t\t\t\telement.removeChild( element.firstChild );\n\t\t\t}\n\t\t\telement.appendChild( node );\n\t\t\tcb();\n\t\t} );\n\t}\n}\n\nfunction renderMathJax2( equation, element, display ) {\n\tif ( display ) {\n\t\telement.innerHTML = '\\\\[' + equation + '\\\\]';\n\t} else {\n\t\telement.innerHTML = '\\\\(' + equation + '\\\\)';\n\t}\n\t// eslint-disable-next-line\n\tMathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, element ] );\n}\n\nfunction createPreviewElement( element, previewUid, previewClassName, render ) {\n\tconst previewEl = getPreviewElement( element, previewUid, previewClassName );\n\trender( previewEl );\n}\n\nfunction getPreviewElement( element, previewUid, previewClassName ) {\n\tlet previewEl = global.document.getElementById( previewUid );\n\t// Create if not found\n\tif ( !previewEl ) {\n\t\tpreviewEl = global.document.createElement( 'div' );\n\t\tpreviewEl.setAttribute( 'id', previewUid );\n\t\tpreviewEl.classList.add( ...previewClassName );\n\t\tpreviewEl.style.visibility = 'hidden';\n\t\tglobal.document.body.appendChild( previewEl );\n\n\t\tlet ticking = false;\n\n\t\tconst renderTransformation = () => {\n\t\t\tif ( !ticking ) {\n\t\t\t\tglobal.window.requestAnimationFrame( () => {\n\t\t\t\t\tmoveElement( element, previewEl );\n\t\t\t\t\tticking = false;\n\t\t\t\t} );\n\n\t\t\t\tticking = true;\n\t\t\t}\n\t\t};\n\n\t\t// Create scroll listener for following\n\t\tglobal.window.addEventListener( 'resize', renderTransformation );\n\t\tglobal.window.addEventListener( 'scroll', renderTransformation );\n\t}\n\treturn previewEl;\n}\n\nfunction moveAndScaleElement( parent, child ) {\n\t// Move to right place\n\tmoveElement( parent, child );\n\n\t// Scale parent element same as preview\n\tconst domRect = child.getBoundingClientRect();\n\tparent.style.width = domRect.width + 'px';\n\tparent.style.height = domRect.height + 'px';\n}\n\nfunction moveElement( parent, child ) {\n\tconst domRect = parent.getBoundingClientRect();\n\tconst left = global.window.scrollX + domRect.left;\n\tconst top = global.window.scrollY + domRect.top;\n\tchild.style.position = 'absolute';\n\tchild.style.left = left + 'px';\n\tchild.style.top = top + 'px';\n\tchild.style.zIndex = 'var(--ck-z-modal)';\n\tchild.style.pointerEvents = 'none';\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./labeledinput.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/labeledinput/labeledinputview\n */\n\nimport View from '../view';\nimport LabelView from '../label/labelview';\n\nimport type { default as InputView, InputViewInputEvent } from '../input/inputview';\n\nimport { uid, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/labeledinput/labeledinput.css';\n\n/**\n * The labeled input view class.\n *\n * @extends module:ui/view~View\n */\nexport default class LabeledInputView extends View {\n\tpublic readonly labelView: LabelView;\n\tpublic readonly inputView: InputView;\n\tpublic readonly statusView: View;\n\n\tdeclare public label: string | undefined;\n\tdeclare public value: string | undefined;\n\tdeclare public isReadOnly: boolean;\n\tdeclare public errorText: string | null;\n\tdeclare public infoText: string | null;\n\tdeclare public _statusText: string | null;\n\n\t/**\n\t * Creates an instance of the labeled input view class.\n\t *\n\t * @param {module:utils/locale~Locale} locale The locale instance.\n\t * @param {Function} InputView Constructor of the input view.\n\t */\n\tconstructor(\n\t\tlocale: Locale | undefined,\n\t\tInputView: new ( locale: Locale | undefined, statusUid: string ) => InputView\n\t) {\n\t\tsuper( locale );\n\n\t\tconst inputUid = `ck-input-${ uid() }`;\n\t\tconst statusUid = `ck-status-${ uid() }`;\n\n\t\t/**\n\t\t * The text of the label.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #label\n\t\t */\n\t\tthis.set( 'label', undefined );\n\n\t\t/**\n\t\t * The value of the input.\n\t\t *\n\t\t * @observable\n\t\t * @member {String} #value\n\t\t */\n\t\tthis.set( 'value', undefined );\n\n\t\t/**\n\t\t * Controls whether the component is in read-only mode.\n\t\t *\n\t\t * @observable\n\t\t * @member {Boolean} #isReadOnly\n\t\t */\n\t\tthis.set( 'isReadOnly', false );\n\n\t\t/**\n\t\t * The validation error text. When set, it will be displayed\n\t\t * next to the {@link #inputView} as a typical validation error message.\n\t\t * Set it to `null` to hide the message.\n\t\t *\n\t\t * **Note:** Setting this property to anything but `null` will automatically\n\t\t * make the {@link module:ui/inputtext/inputtextview~InputTextView#hasError `hasError`}\n\t\t * of the {@link #inputView} `true`.\n\t\t *\n\t\t * **Note:** Typing in the {@link #inputView} which fires the\n\t\t * {@link module:ui/inputtext/inputtextview~InputTextView#event:input `input` event}\n\t\t * resets this property back to `null`, indicating that the input field can be re–validated.\n\t\t *\n\t\t * @observable\n\t\t * @member {String|null} #errorText\n\t\t */\n\t\tthis.set( 'errorText', null );\n\n\t\t/**\n\t\t * The additional information text displayed next to the {@link #inputView} which can\n\t\t * be used to inform the user about the purpose of the input, provide help or hints.\n\t\t *\n\t\t * Set it to `null` to hide the message.\n\t\t *\n\t\t * **Note:** This text will be displayed in the same place as {@link #errorText} but the\n\t\t * latter always takes precedence: if the {@link #errorText} is set, it replaces\n\t\t * {@link #errorText} for as long as the value of the input is invalid.\n\t\t *\n\t\t * @observable\n\t\t * @member {String|null} #infoText\n\t\t */\n\t\tthis.set( 'infoText', null );\n\n\t\t/**\n\t\t * The label view.\n\t\t *\n\t\t * @member {module:ui/label/labelview~LabelView} #labelView\n\t\t */\n\t\tthis.labelView = this._createLabelView( inputUid );\n\n\t\t/**\n\t\t * The input view.\n\t\t *\n\t\t * @member {module:ui/inputtext/inputtextview~InputTextView} #inputView\n\t\t */\n\t\tthis.inputView = this._createInputView( InputView, inputUid, statusUid );\n\n\t\t/**\n\t\t * The status view for the {@link #inputView}. It displays {@link #errorText} and\n\t\t * {@link #infoText}.\n\t\t *\n\t\t * @member {module:ui/view~View} #statusView\n\t\t */\n\t\tthis.statusView = this._createStatusView( statusUid );\n\n\t\t/**\n\t\t * The combined status text made of {@link #errorText} and {@link #infoText}.\n\t\t * Note that when present, {@link #errorText} always takes precedence in the\n\t\t * status.\n\t\t *\n\t\t * @see #errorText\n\t\t * @see #infoText\n\t\t * @see #statusView\n\t\t * @private\n\t\t * @observable\n\t\t * @member {String|null} #_statusText\n\t\t */\n\t\tthis.bind( '_statusText' ).to(\n\t\t\tthis, 'errorText',\n\t\t\tthis, 'infoText',\n\t\t\t( errorText, infoText ) => errorText || infoText\n\t\t);\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-labeled-input',\n\t\t\t\t\tbind.if( 'isReadOnly', 'ck-disabled' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis.labelView,\n\t\t\t\tthis.inputView,\n\t\t\t\tthis.statusView\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * Creates label view class instance and bind with view.\n\t *\n\t * @private\n\t * @param {String} id Unique id to set as labelView#for attribute.\n\t * @returns {module:ui/label/labelview~LabelView}\n\t */\n\tprivate _createLabelView( id: string ) {\n\t\tconst labelView = new LabelView( this.locale );\n\n\t\tlabelView.for = id;\n\t\tlabelView.bind( 'text' ).to( this, 'label' );\n\n\t\treturn labelView;\n\t}\n\n\t/**\n\t * Creates input view class instance and bind with view.\n\t *\n\t * @private\n\t * @param {Function} InputView Input view constructor.\n\t * @param {String} inputUid Unique id to set as inputView#id attribute.\n\t * @param {String} statusUid Unique id of the status for the input's `aria-describedby` attribute.\n\t * @returns {module:ui/inputtext/inputtextview~InputTextView}\n\t */\n\tprivate _createInputView(\n\t\tInputView: new ( locale: Locale | undefined, statusUid: string ) => InputView,\n\t\tinputUid: string,\n\t\tstatusUid: string\n\t) {\n\t\tconst inputView = new InputView( this.locale, statusUid );\n\n\t\tinputView.id = inputUid;\n\t\tinputView.ariaDescribedById = statusUid;\n\t\tinputView.bind( 'value' ).to( this );\n\t\tinputView.bind( 'isReadOnly' ).to( this );\n\t\tinputView.bind( 'hasError' ).to( this, 'errorText', value => !!value );\n\n\t\tinputView.on<InputViewInputEvent>( 'input', () => {\n\t\t\t// UX: Make the error text disappear and disable the error indicator as the user\n\t\t\t// starts fixing the errors.\n\t\t\tthis.errorText = null;\n\t\t} );\n\n\t\treturn inputView;\n\t}\n\n\t/**\n\t * Creates the status view instance. It displays {@link #errorText} and {@link #infoText}\n\t * next to the {@link #inputView}. See {@link #_statusText}.\n\t *\n\t * @private\n\t * @param {String} statusUid Unique id of the status, shared with the input's `aria-describedby` attribute.\n\t * @returns {module:ui/view~View}\n\t */\n\tprivate _createStatusView( statusUid: string ) {\n\t\tconst statusView = new View( this.locale );\n\t\tconst bind = this.bindTemplate;\n\n\t\tstatusView.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-labeled-input__status',\n\t\t\t\t\tbind.if( 'errorText', 'ck-labeled-input__status_error' ),\n\t\t\t\t\tbind.if( '_statusText', 'ck-hidden', value => !value )\n\t\t\t\t],\n\t\t\t\tid: statusUid,\n\t\t\t\trole: bind.if( 'errorText', 'alert' )\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( '_statusText' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn statusView;\n\t}\n\n\t/**\n\t * Moves the focus to the input and selects the value.\n\t */\n\tpublic select(): void {\n\t\tthis.inputView.select();\n\t}\n\n\t/**\n\t * Focuses the input.\n\t */\n\tpublic focus(): void {\n\t\tthis.inputView.focus();\n\t}\n}\n","import View from '@ckeditor/ckeditor5-ui/src/view';\n\nimport { renderEquation } from '../utils';\n\nexport default class MathView extends View {\n\tconstructor( engine, lazyLoad, locale, previewUid, previewClassName, katexRenderOptions ) {\n\t\tsuper( locale );\n\n\t\tthis.engine = engine;\n\t\tthis.lazyLoad = lazyLoad;\n\t\tthis.previewUid = previewUid;\n\t\tthis.katexRenderOptions = katexRenderOptions;\n\n\t\tthis.set( 'value', '' );\n\t\tthis.set( 'display', false );\n\n\t\tthis.on( 'change', () => {\n\t\t\tif ( this.isRendered ) {\n\t\t\t\tthis.updateMath();\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-math-preview'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\tupdateMath() {\n\t\trenderEquation( this.value, this.element, this.engine, this.lazyLoad, this.display, true, this.previewUid, this.previewClassName,\n\t\t\tthis.katexRenderOptions );\n\t}\n\n\trender() {\n\t\tsuper.render();\n\t\tthis.updateMath();\n\t}\n}\n","import api from \"!../../style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../css-loader/dist/cjs.js!../../postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./mathform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import View from '@ckeditor/ckeditor5-ui/src/view';\nimport ViewCollection from '@ckeditor/ckeditor5-ui/src/viewcollection';\n\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\nimport SwitchButtonView from '@ckeditor/ckeditor5-ui/src/button/switchbuttonview';\nimport LabeledInputView from '@ckeditor/ckeditor5-ui/src/labeledinput/labeledinputview';\nimport InputTextView from '@ckeditor/ckeditor5-ui/src/inputtext/inputtextview';\nimport LabelView from '@ckeditor/ckeditor5-ui/src/label/labelview';\n\nimport KeystrokeHandler from '@ckeditor/ckeditor5-utils/src/keystrokehandler';\nimport FocusTracker from '@ckeditor/ckeditor5-utils/src/focustracker';\nimport FocusCycler from '@ckeditor/ckeditor5-ui/src/focuscycler';\n\nimport checkIcon from '@ckeditor/ckeditor5-core/theme/icons/check.svg';\nimport cancelIcon from '@ckeditor/ckeditor5-core/theme/icons/cancel.svg';\n\nimport submitHandler from '@ckeditor/ckeditor5-ui/src/bindings/submithandler';\n\nimport { extractDelimiters, hasDelimiters } from '../utils';\n\nimport MathView from './mathview';\n\nimport '../../theme/mathform.css';\n\nexport default class MainFormView extends View {\n\tconstructor( locale, engine, lazyLoad, previewEnabled, previewUid, previewClassName, popupClassName, katexRenderOptions ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\t// Create key event & focus trackers\n\t\tthis._createKeyAndFocusTrackers();\n\n\t\t// Submit button\n\t\tthis.saveButtonView = this._createButton( t( 'Save' ), checkIcon, 'ck-button-save', null );\n\t\tthis.saveButtonView.type = 'submit';\n\n\t\t// Equation input\n\t\tthis.mathInputView = this._createMathInput();\n\n\t\t// Display button\n\t\tthis.displayButtonView = this._createDisplayButton();\n\n\t\t// Cancel button\n\t\tthis.cancelButtonView = this._createButton( t( 'Cancel' ), cancelIcon, 'ck-button-cancel', 'cancel' );\n\n\t\tthis.previewEnabled = previewEnabled;\n\n\t\tlet children = [];\n\t\tif ( this.previewEnabled ) {\n\t\t\t// Preview label\n\t\t\tthis.previewLabel = new LabelView( locale );\n\t\t\tthis.previewLabel.text = t( 'Equation preview' );\n\n\t\t\t// Math element\n\t\t\tthis.mathView = new MathView( engine, lazyLoad, locale, previewUid, previewClassName, katexRenderOptions );\n\t\t\tthis.mathView.bind( 'display' ).to( this.displayButtonView, 'isOn' );\n\n\t\t\tchildren = [\n\t\t\t\tthis.mathInputView,\n\t\t\t\tthis.displayButtonView,\n\t\t\t\tthis.previewLabel,\n\t\t\t\tthis.mathView\n\t\t\t];\n\t\t} else {\n\t\t\tchildren = [\n\t\t\t\tthis.mathInputView,\n\t\t\t\tthis.displayButtonView\n\t\t\t];\n\t\t}\n\n\t\t// Add UI elements to template\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-math-form',\n\t\t\t\t\t...popupClassName\n\t\t\t\t],\n\t\t\t\ttabindex: '-1',\n\t\t\t\tspellcheck: 'false'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck-math-view'\n\t\t\t\t\t\t]\n\t\t\t\t\t},\n\t\t\t\t\tchildren\n\t\t\t\t},\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t]\n\t\t} );\n\t}\n\n\trender() {\n\t\tsuper.render();\n\n\t\t// Prevent default form submit event & trigger custom 'submit'\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\t// Register form elements to focusable elements\n\t\tconst childViews = [\n\t\t\tthis.mathInputView,\n\t\t\tthis.displayButtonView,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\tthis._focusables.add( v );\n\t\t\tthis.focusTracker.add( v.element );\n\t\t} );\n\n\t\t// Listen to keypresses inside form element\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\tget equation() {\n\t\treturn this.mathInputView.inputView.element.value;\n\t}\n\n\tset equation( equation ) {\n\t\tthis.mathInputView.inputView.element.value = equation;\n\t\tif ( this.previewEnabled ) {\n\t\t\tthis.mathView.value = equation;\n\t\t}\n\t}\n\n\t_createKeyAndFocusTrackers() {\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis._focusables = new ViewCollection();\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\tfocusPrevious: 'shift + tab',\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\t}\n\n\t_createMathInput() {\n\t\tconst t = this.locale.t;\n\n\t\t// Create equation input\n\t\tconst mathInput = new LabeledInputView( this.locale, InputTextView );\n\t\tconst inputView = mathInput.inputView;\n\t\tmathInput.infoText = t( 'Insert equation in TeX format.' );\n\n\t\tconst onInput = () => {\n\t\t\tif ( inputView.element != null ) {\n\t\t\t\tlet equationInput = inputView.element.value.trim();\n\n\t\t\t\t// If input has delimiters\n\t\t\t\tif ( hasDelimiters( equationInput ) ) {\n\t\t\t\t\t// Get equation without delimiters\n\t\t\t\t\tconst params = extractDelimiters( equationInput );\n\n\t\t\t\t\t// Remove delimiters from input field\n\t\t\t\t\tinputView.element.value = params.equation;\n\n\t\t\t\t\tequationInput = params.equation;\n\n\t\t\t\t\t// update display button and preview\n\t\t\t\t\tthis.displayButtonView.isOn = params.display;\n\t\t\t\t}\n\t\t\t\tif ( this.previewEnabled ) {\n\t\t\t\t\t// Update preview view\n\t\t\t\t\tthis.mathView.value = equationInput;\n\t\t\t\t}\n\n\t\t\t\tthis.saveButtonView.isEnabled = !!equationInput;\n\t\t\t}\n\t\t};\n\n\t\tinputView.on( 'render', onInput );\n\t\tinputView.on( 'input', onInput );\n\n\t\treturn mathInput;\n\t}\n\n\t_createButton( label, icon, className, eventName ) {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: className\n\t\t\t}\n\t\t} );\n\n\t\tif ( eventName ) {\n\t\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\t\t}\n\n\t\treturn button;\n\t}\n\n\t_createDisplayButton() {\n\t\tconst t = this.locale.t;\n\n\t\tconst switchButton = new SwitchButtonView( this.locale );\n\n\t\tswitchButton.set( {\n\t\t\tlabel: t( 'Display mode' ),\n\t\t\twithText: true\n\t\t} );\n\n\t\tswitchButton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-button-display-toggle'\n\t\t\t}\n\t\t} );\n\n\t\tswitchButton.on( 'execute', () => {\n\t\t\t// Toggle state\n\t\t\tswitchButton.isOn = !switchButton.isOn;\n\n\t\t\tif ( this.previewEnabled ) {\n\t\t\t\t// Update preview view\n\t\t\t\tthis.mathView.display = switchButton.isOn;\n\t\t\t}\n\t\t} );\n\n\t\treturn switchButton;\n\t}\n}\n","import Command from '@ckeditor/ckeditor5-core/src/command';\n\nimport { getSelectedMathModelWidget } from './utils';\n\nexport default class MathCommand extends Command {\n\texecute( equation, display, outputType, forceOutputType ) {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tmodel.change( writer => {\n\t\t\tlet mathtex;\n\t\t\tif ( selectedElement && ( selectedElement.is( 'element', 'mathtex-inline' ) ||\n\t\t\t\t\tselectedElement.is( 'element', 'mathtex-display' ) ) ) {\n\t\t\t\t// Update selected element\n\t\t\t\tconst typeAttr = selectedElement.getAttribute( 'type' );\n\n\t\t\t\t// Use already set type if found and is not forced\n\t\t\t\tconst type = forceOutputType ? outputType : typeAttr || outputType;\n\n\t\t\t\tmathtex = writer.createElement( display ? 'mathtex-display' : 'mathtex-inline', { equation, type, display } );\n\t\t\t} else {\n\t\t\t\t// Create new model element\n\t\t\t\tmathtex = writer.createElement( display ? 'mathtex-display' : 'mathtex-inline', { equation, type: outputType, display } );\n\t\t\t}\n\t\t\tmodel.insertContent( mathtex );\n\t\t} );\n\t}\n\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tthis.isEnabled = selectedElement === null || ( selectedElement.is( 'element', 'mathtex-inline' ) ||\n\t\t\t\tselectedElement.is( 'element', 'mathtex-display' ) );\n\n\t\tconst selectedEquation = getSelectedMathModelWidget( selection );\n\t\tthis.value = selectedEquation ? selectedEquation.getAttribute( 'equation' ) : null;\n\t\tthis.display = selectedEquation ? selectedEquation.getAttribute( 'display' ) : null;\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport { toWidget, viewToModelPositionOutsideModelElement } from '@ckeditor/ckeditor5-widget/src/utils';\nimport Widget from '@ckeditor/ckeditor5-widget/src/widget';\n\nimport MathCommand from './mathcommand';\n\nimport { renderEquation, extractDelimiters } from './utils';\n\nexport default class MathEditing extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Widget ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'MathEditing';\n\t}\n\n\tinit() {\n\t\tconst editor = this.editor;\n\t\teditor.commands.add( 'math', new MathCommand( editor ) );\n\n\t\tthis._defineSchema();\n\t\tthis._defineConverters();\n\n\t\teditor.editing.mapper.on(\n\t\t\t'viewToModelPosition',\n\t\t\tviewToModelPositionOutsideModelElement( editor.model, viewElement => viewElement.hasClass( 'math' ) )\n\t\t);\n\t\teditor.config.define( 'math', {\n\t\t\tengine: 'mathjax',\n\t\t\toutputType: 'script',\n\t\t\tforceOutputType: false,\n\t\t\tenablePreview: true,\n\t\t\tpreviewClassName: [],\n\t\t\tpopupClassName: [],\n\t\t\tkatexRenderOptions: {}\n\t\t} );\n\t}\n\n\t_defineSchema() {\n\t\tconst schema = this.editor.model.schema;\n\t\tschema.register( 'mathtex-inline', {\n\t\t\tallowWhere: '$text',\n\t\t\tisInline: true,\n\t\t\tisObject: true,\n\t\t\tallowAttributes: [ 'equation', 'type', 'display' ]\n\t\t} );\n\n\t\tschema.register( 'mathtex-display', {\n\t\t\tallowWhere: '$block',\n\t\t\tisInline: false,\n\t\t\tisObject: true,\n\t\t\tallowAttributes: [ 'equation', 'type', 'display' ]\n\t\t} );\n\t}\n\n\t_defineConverters() {\n\t\tconst conversion = this.editor.conversion;\n\t\tconst mathConfig = this.editor.config.get( 'math' );\n\n\t\t// View -> Model\n\t\tconversion.for( 'upcast' )\n\t\t\t// MathJax inline way (e.g. <script type=\"math/tex\">\\sqrt{\\frac{a}{b}}</script>)\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'script',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\ttype: 'math/tex'\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getChild( 0 ).data.trim();\n\t\t\t\t\treturn writer.createElement( 'mathtex-inline', {\n\t\t\t\t\t\tequation,\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'script',\n\t\t\t\t\t\tdisplay: false\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t// MathJax display way (e.g. <script type=\"math/tex; mode=display\">\\sqrt{\\frac{a}{b}}</script>)\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'script',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\ttype: 'math/tex; mode=display'\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getChild( 0 ).data.trim();\n\t\t\t\t\treturn writer.createElement( 'mathtex-display', {\n\t\t\t\t\t\tequation,\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'script',\n\t\t\t\t\t\tdisplay: true\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t// CKEditor 4 way (e.g. <span class=\"math-tex\">\\( \\sqrt{\\frac{a}{b}} \\)</span>)\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ 'math-tex' ]\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getChild( 0 ).data.trim();\n\n\t\t\t\t\tconst params = Object.assign( extractDelimiters( equation ), {\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'span'\n\t\t\t\t\t} );\n\n\t\t\t\t\treturn writer.createElement( params.display ? 'mathtex-display' : 'mathtex-inline', params );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t// KaTeX from Quill: https://github.com/quilljs/quill/blob/develop/formats/formula.js\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ 'ql-formula' ]\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getAttribute( 'data-value' ).trim();\n\t\t\t\t\treturn writer.createElement( 'mathtex-inline', {\n\t\t\t\t\t\tequation,\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'script',\n\t\t\t\t\t\tdisplay: false\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t// Model -> View (element)\n\t\tconversion.for( 'editingDowncast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'mathtex-inline',\n\t\t\t\tview: ( modelItem, { writer } ) => {\n\t\t\t\t\tconst widgetElement = createMathtexEditingView( modelItem, writer );\n\t\t\t\t\treturn toWidget( widgetElement, writer, 'span' );\n\t\t\t\t}\n\t\t\t} ).elementToElement( {\n\t\t\t\tmodel: 'mathtex-display',\n\t\t\t\tview: ( modelItem, { writer } ) => {\n\t\t\t\t\tconst widgetElement = createMathtexEditingView( modelItem, writer );\n\t\t\t\t\treturn toWidget( widgetElement, writer, 'div' );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t// Model -> Data\n\t\tconversion.for( 'dataDowncast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'mathtex-inline',\n\t\t\t\tview: createMathtexView\n\t\t\t} )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'mathtex-display',\n\t\t\t\tview: createMathtexView\n\t\t\t} );\n\n\t\t// Create view for editor\n\t\tfunction createMathtexEditingView( modelItem, writer ) {\n\t\t\tconst equation = modelItem.getAttribute( 'equation' );\n\t\t\tconst display = modelItem.getAttribute( 'display' );\n\n\t\t\tconst styles = 'user-select: none; ' + ( display ? '' : 'display: inline-block;' );\n\t\t\tconst classes = 'ck-math-tex ' + ( display ? 'ck-math-tex-display' : 'ck-math-tex-inline' );\n\n\t\t\tconst mathtexView = writer.createContainerElement( display ? 'div' : 'span', {\n\t\t\t\tstyle: styles,\n\t\t\t\tclass: classes\n\t\t\t} );\n\n\t\t\tconst uiElement = writer.createUIElement( 'div', null, function( domDocument ) {\n\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\trenderEquation( equation, domElement, mathConfig.engine, mathConfig.lazyLoad, display, false, mathConfig.previewClassName,\n\t\t\t\t\tnull, mathConfig.katexRenderOptions );\n\n\t\t\t\treturn domElement;\n\t\t\t} );\n\n\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), uiElement );\n\n\t\t\treturn mathtexView;\n\t\t}\n\n\t\t// Create view for data\n\t\tfunction createMathtexView( modelItem, { writer } ) {\n\t\t\tconst equation = modelItem.getAttribute( 'equation' );\n\t\t\tconst type = modelItem.getAttribute( 'type' );\n\t\t\tconst display = modelItem.getAttribute( 'display' );\n\n\t\t\tif ( type === 'span' ) {\n\t\t\t\tconst mathtexView = writer.createContainerElement( 'span', {\n\t\t\t\t\tclass: 'math-tex'\n\t\t\t\t} );\n\n\t\t\t\tif ( display ) {\n\t\t\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), writer.createText( '\\\\[' + equation + '\\\\]' ) );\n\t\t\t\t} else {\n\t\t\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), writer.createText( '\\\\(' + equation + '\\\\)' ) );\n\t\t\t\t}\n\n\t\t\t\treturn mathtexView;\n\t\t\t} else {\n\t\t\t\tconst mathtexView = writer.createContainerElement( 'script', {\n\t\t\t\t\ttype: display ? 'math/tex; mode=display' : 'math/tex'\n\t\t\t\t} );\n\n\t\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), writer.createText( equation ) );\n\n\t\t\t\treturn mathtexView;\n\t\t\t}\n\t\t}\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" viewBox=\\\"0 0 15.44 10.78\\\" height=\\\"40.74\\\" width=\\\"58.35\\\"><path d=\\\"M8.15 0c-.06 0-.1.02-.11.03a.12.12 0 0 0-.02.01 6.81 6.81 0 0 0-2.32 4.9v.9a6.82 6.82 0 0 0 2.32 4.9.12.12 0 0 0 .02 0c.02.02.06.04.11.04.07 0 .12-.03.16-.07a.22.22 0 0 0 0-.32.12.12 0 0 0-.02-.02A4.4 4.4 0 0 1 7 8.44a7.62 7.62 0 0 1-.5-2.6v-.9c0-.82.19-1.76.5-2.6A4.4 4.4 0 0 1 8.3.42.12.12 0 0 0 8.3.39a.22.22 0 0 0 .08-.16.22.22 0 0 0-.07-.16.22.22 0 0 0-.16-.07zm4.83 0a.22.22 0 0 0-.16.07.22.22 0 0 0-.07.16c0 .08.05.13.08.16a.12.12 0 0 0 .01.02c.52.39.98 1.1 1.3 1.94.3.83.49 1.77.49 2.6v.88c0 .83-.18 1.78-.5 2.6a4.4 4.4 0 0 1-1.29 1.95.22.22 0 0 0-.01.33c.03.04.08.07.15.07.05 0 .09-.02.12-.03a.12.12 0 0 0 .02-.01 6.82 6.82 0 0 0 2.32-4.9v-.9a6.81 6.81 0 0 0-2.32-4.9.12.12 0 0 0-.02 0c-.03-.02-.06-.04-.12-.04zm-8.5.46c-.4 0-1.13.23-1.46 1.32-.06.2-.11.45-.33 1.58h-.64c-.1 0-.19-.01-.28.03a.25.25 0 0 0-.12.12.38.38 0 0 0-.03.17c0 .04 0 .1.04.14.03.04.07.07.11.08.09.03.16.02.26.02h.56l-.77 4.04c-.1.51-.19 1-.32 1.36-.06.18-.14.32-.22.4-.08.1-.16.13-.26.13-.03 0-.1 0-.2-.03.11-.05.2-.13.26-.2a.7.7 0 0 0 .13-.4.48.48 0 0 0-.16-.38.53.53 0 0 0-.35-.12c-.34 0-.7.3-.7.76 0 .27.14.5.34.64s.44.2.68.2c.33 0 .61-.17.83-.4.21-.21.37-.48.47-.69.18-.35.32-.84.43-1.25a14.17 14.17 0 0 0 .18-.8l.61-3.26h.81c.1 0 .2.01.3-.03.04-.03.09-.07.11-.13.02-.05.03-.1.03-.17 0-.05-.01-.1-.05-.14a.23.23 0 0 0-.11-.07c-.08-.03-.16-.02-.25-.02h-.73l.2-1.07a26.3 26.3 0 0 1 .24-1.07c.08-.17.22-.3.39-.3l.21.05a.7.7 0 0 0-.25.2.7.7 0 0 0-.13.4c0 .15.06.28.16.37.1.08.22.12.35.12.34 0 .7-.3.7-.76 0-.28-.15-.5-.35-.64-.2-.14-.45-.2-.7-.2zm5.4 2.78c-.6 0-1.06.37-1.36.76-.16.2-.27.4-.35.57-.07.18-.12.3-.12.42 0 .1.08.18.14.2.06.03.1.02.1.02.06 0 .12 0 .18-.04.05-.05.07-.1.08-.17v.02c.35-1.09 1-1.3 1.3-1.3.09 0 .2.01.29.09.09.07.17.2.17.5 0 .27-.18 1-.57 2.48a1.8 1.8 0 0 1-.37.75.7.7 0 0 1-.52.26c-.04 0-.13 0-.22-.03a.68.68 0 0 0 .3-.56.47.47 0 0 0-.18-.39.55.55 0 0 0-.32-.1c-.4 0-.7.33-.7.74 0 .28.16.5.38.63.21.13.48.18.73.18.39 0 .69-.2.89-.41.09-.1.15-.19.2-.27.2.36.59.68 1.16.68.6 0 1.05-.37 1.35-.76.15-.2.27-.4.34-.57.08-.18.12-.3.12-.42a.24.24 0 0 0-.11-.2c-.06-.03-.12-.02-.13-.02a.26.26 0 0 0-.18.06c-.05.05-.06.1-.07.14-.34 1.1-1.02 1.3-1.3 1.3-.17 0-.27-.06-.35-.17a.72.72 0 0 1-.11-.4c0-.22.06-.45.18-.91l.36-1.45c.03-.14.1-.44.25-.7.15-.25.36-.46.68-.46.03 0 .12 0 .22.03a.7.7 0 0 0-.32.56c0 .11.04.23.13.33.08.1.22.16.4.16.14 0 .3-.06.44-.18a.73.73 0 0 0 .24-.55c0-.32-.2-.54-.42-.66a1.52 1.52 0 0 0-.68-.16c-.34 0-.62.16-.82.34a1.8 1.8 0 0 0-.3.35 1.32 1.32 0 0 0-.5-.54 1.37 1.37 0 0 0-.63-.15z\\\" style=\\\"line-height:1.25;-inkscape-font-specification:'Latin Modern Math'\\\" font-weight=\\\"400\\\" font-size=\\\"10.58\\\" font-family=\\\"Latin Modern Math\\\" letter-spacing=\\\"-1.06\\\" word-spacing=\\\"0\\\"/></svg>\\n\";","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport ClickObserver from '@ckeditor/ckeditor5-engine/src/view/observer/clickobserver';\nimport ContextualBalloon from '@ckeditor/ckeditor5-ui/src/panel/balloon/contextualballoon';\nimport clickOutsideHandler from '@ckeditor/ckeditor5-ui/src/bindings/clickoutsidehandler';\nimport uid from '@ckeditor/ckeditor5-utils/src/uid';\nimport global from '@ckeditor/ckeditor5-utils/src/dom/global';\nimport { getBalloonPositionData } from './utils';\n\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\nimport MainFormView from './ui/mainformview';\n\n// Need math commands from there\nimport MathEditing from './mathediting';\n\nimport mathIcon from '../theme/icons/math.svg';\n\nconst mathKeystroke = 'Ctrl+M';\n\nexport default class MathUI extends Plugin {\n\tstatic get requires() {\n\t\treturn [ ContextualBalloon, MathEditing ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'MathUI';\n\t}\n\n\tinit() {\n\t\tconst editor = this.editor;\n\t\teditor.editing.view.addObserver( ClickObserver );\n\n\t\tthis._previewUid = `math-preview-${ uid() }`;\n\n\t\tthis.formView = this._createFormView();\n\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\tthis._createToolbarMathButton();\n\n\t\tthis._enableUserBalloonInteractions();\n\t}\n\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.formView.destroy();\n\n\t\t// Destroy preview element\n\t\tconst previewEl = global.document.getElementById( this._previewUid );\n\t\tif ( previewEl ) {\n\t\t\tpreviewEl.parentNode.removeChild( previewEl );\n\t\t}\n\t}\n\n\t_showUI() {\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\tif ( !mathCommand.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._addFormView();\n\n\t\tthis._balloon.showStack( 'main' );\n\t}\n\n\t_createFormView() {\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\tconst mathConfig = editor.config.get( 'math' );\n\n\t\tconst formView = new MainFormView(\n\t\t\teditor.locale,\n\t\t\tmathConfig.engine,\n\t\t\tmathConfig.lazyLoad,\n\t\t\tmathConfig.enablePreview,\n\t\t\tthis._previewUid,\n\t\t\tmathConfig.previewClassName,\n\t\t\tmathConfig.popupClassName,\n\t\t\tmathConfig.katexRenderOptions\n\t\t);\n\n\t\tformView.mathInputView.bind( 'value' ).to( mathCommand, 'value' );\n\t\tformView.displayButtonView.bind( 'isOn' ).to( mathCommand, 'display' );\n\n\t\t// Form elements should be read-only when corresponding commands are disabled.\n\t\tformView.mathInputView.bind( 'isReadOnly' ).to( mathCommand, 'isEnabled', value => !value );\n\t\tformView.saveButtonView.bind( 'isEnabled' ).to( mathCommand );\n\t\tformView.displayButtonView.bind( 'isEnabled' ).to( mathCommand );\n\n\t\t// Listen to submit button click\n\t\tthis.listenTo( formView, 'submit', () => {\n\t\t\teditor.execute( 'math', formView.equation, formView.displayButtonView.isOn, mathConfig.outputType, mathConfig.forceOutputType );\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Listen to cancel button click\n\t\tthis.listenTo( formView, 'cancel', () => {\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Close plugin ui, if esc is pressed (while ui is focused)\n\t\tformView.keystrokes.set( 'esc', ( data, cancel ) => {\n\t\t\tthis._closeFormView();\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn formView;\n\t}\n\n\t_addFormView() {\n\t\tif ( this._isFormInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.formView,\n\t\t\tposition: getBalloonPositionData( editor )\n\t\t} );\n\n\t\tif ( this._balloon.visibleView === this.formView ) {\n\t\t\tthis.formView.mathInputView.select();\n\t\t}\n\n\t\t// Show preview element\n\t\tconst previewEl = global.document.getElementById( this._previewUid );\n\t\tif ( previewEl && this.formView.previewEnabled ) {\n\t\t\t// Force refresh preview\n\t\t\tthis.formView.mathView.updateMath();\n\t\t}\n\n\t\tthis.formView.equation = mathCommand.value || '';\n\t\tthis.formView.displayButtonView.isOn = mathCommand.display || false;\n\t}\n\n\t_hideUI() {\n\t\tif ( !this._isFormInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\t\tthis.stopListening( this._balloon, 'change:visibleView' );\n\n\t\teditor.editing.view.focus();\n\n\t\t// Remove form first because it's on top of the stack.\n\t\tthis._removeFormView();\n\t}\n\n\t_closeFormView() {\n\t\tconst mathCommand = this.editor.commands.get( 'math' );\n\t\tif ( mathCommand.value !== undefined ) {\n\t\t\tthis._removeFormView();\n\t\t} else {\n\t\t\tthis._hideUI();\n\t\t}\n\t}\n\n\t_removeFormView() {\n\t\tif ( this._isFormInPanel ) {\n\t\t\tthis.formView.saveButtonView.focus();\n\n\t\t\tthis._balloon.remove( this.formView );\n\n\t\t\t// Hide preview element\n\t\t\tconst previewEl = global.document.getElementById( this._previewUid );\n\t\t\tif ( previewEl ) {\n\t\t\t\tpreviewEl.style.visibility = 'hidden';\n\t\t\t}\n\n\t\t\tthis.editor.editing.view.focus();\n\t\t}\n\t}\n\n\t_createToolbarMathButton() {\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\t\tconst t = editor.t;\n\n\t\t// Handle the `Ctrl+M` keystroke and show the panel.\n\t\teditor.keystrokes.set( mathKeystroke, ( keyEvtData, cancel ) => {\n\t\t\t// Prevent focusing the search bar in FF and opening new tab in Edge. #153, #154.\n\t\t\tcancel();\n\n\t\t\tif ( mathCommand.isEnabled ) {\n\t\t\t\tthis._showUI();\n\t\t\t}\n\t\t} );\n\n\t\tthis.editor.ui.componentFactory.add( 'math', locale => {\n\t\t\tconst button = new ButtonView( locale );\n\n\t\t\tbutton.isEnabled = true;\n\t\t\tbutton.label = t( 'Insert math' );\n\t\t\tbutton.icon = mathIcon;\n\t\t\tbutton.keystroke = mathKeystroke;\n\t\t\tbutton.tooltip = true;\n\t\t\tbutton.isToggleable = true;\n\n\t\t\tbutton.bind( 'isEnabled' ).to( mathCommand, 'isEnabled' );\n\n\t\t\tthis.listenTo( button, 'execute', () => this._showUI() );\n\n\t\t\treturn button;\n\t\t} );\n\t}\n\n\t_enableUserBalloonInteractions() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = this.editor.editing.view.document;\n\t\tthis.listenTo( viewDocument, 'click', () => {\n\t\t\tconst mathCommand = editor.commands.get( 'math' );\n\t\t\tif ( mathCommand.value ) {\n\t\t\t\tif ( mathCommand.isEnabled ) {\n\t\t\t\t\tthis._showUI();\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Close the panel on the Esc key press when the editable has focus and the balloon is visible.\n\t\teditor.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tif ( this._isUIVisible ) {\n\t\t\t\tthis._hideUI();\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this.formView,\n\t\t\tactivator: () => this._isFormInPanel,\n\t\t\tcontextElements: [ this._balloon.view.element ],\n\t\t\tcallback: () => this._hideUI()\n\t\t} );\n\t}\n\n\tget _isUIVisible() {\n\t\tconst visibleView = this._balloon.visibleView;\n\n\t\treturn visibleView == this.formView;\n\t}\n\n\tget _isFormInPanel() {\n\t\treturn this._balloon.hasView( this.formView );\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport Clipboard from '@ckeditor/ckeditor5-clipboard/src/clipboard';\nimport Undo from '@ckeditor/ckeditor5-undo/src/undo';\nimport LiveRange from '@ckeditor/ckeditor5-engine/src/model/liverange';\nimport LivePosition from '@ckeditor/ckeditor5-engine/src/model/liveposition';\nimport global from '@ckeditor/ckeditor5-utils/src/dom/global';\n\nimport { extractDelimiters, hasDelimiters, delimitersCounts } from './utils';\n\nexport default class AutoMath extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Clipboard, Undo ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'AutoMath';\n\t}\n\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\tthis._timeoutId = null;\n\n\t\tthis._positionToInsert = null;\n\t}\n\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst modelDocument = editor.model.document;\n\n\t\tthis.listenTo( editor.plugins.get( Clipboard ), 'inputTransformation', () => {\n\t\t\tconst firstRange = modelDocument.selection.getFirstRange();\n\n\t\t\tconst leftLivePosition = LivePosition.fromPosition( firstRange.start );\n\t\t\tleftLivePosition.stickiness = 'toPrevious';\n\n\t\t\tconst rightLivePosition = LivePosition.fromPosition( firstRange.end );\n\t\t\trightLivePosition.stickiness = 'toNext';\n\n\t\t\tmodelDocument.once( 'change:data', () => {\n\t\t\t\tthis._mathBetweenPositions( leftLivePosition, rightLivePosition );\n\n\t\t\t\tleftLivePosition.detach();\n\t\t\t\trightLivePosition.detach();\n\t\t\t}, { priority: 'high' } );\n\t\t} );\n\n\t\teditor.commands.get( 'undo' ).on( 'execute', () => {\n\t\t\tif ( this._timeoutId ) {\n\t\t\t\tglobal.window.clearTimeout( this._timeoutId );\n\t\t\t\tthis._positionToInsert.detach();\n\n\t\t\t\tthis._timeoutId = null;\n\t\t\t\tthis._positionToInsert = null;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\t_mathBetweenPositions( leftPosition, rightPosition ) {\n\t\tconst editor = this.editor;\n\n\t\tconst mathConfig = this.editor.config.get( 'math' );\n\n\t\tconst equationRange = new LiveRange( leftPosition, rightPosition );\n\t\tconst walker = equationRange.getWalker( { ignoreElementEnd: true } );\n\n\t\tlet text = '';\n\n\t\t// Get equation text\n\t\tfor ( const node of walker ) {\n\t\t\tif ( node.item.is( '$textProxy' ) ) {\n\t\t\t\ttext += node.item.data;\n\t\t\t}\n\t\t}\n\n\t\ttext = text.trim();\n\n\t\t// Skip if don't have delimiters\n\t\tif ( !hasDelimiters( text ) || delimitersCounts( text ) !== 2 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\t// Do not anything if math element cannot be inserted at the current position\n\t\tif ( !mathCommand.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._positionToInsert = LivePosition.fromPosition( leftPosition );\n\n\t\t// With timeout user can undo conversation if want use plain text\n\t\tthis._timeoutId = global.window.setTimeout( () => {\n\t\t\teditor.model.change( writer => {\n\t\t\t\tthis._timeoutId = null;\n\n\t\t\t\twriter.remove( equationRange );\n\n\t\t\t\tlet insertPosition;\n\n\t\t\t\t// Check if position where the math element should be inserted is still valid.\n\t\t\t\tif ( this._positionToInsert.root.rootName !== '$graveyard' ) {\n\t\t\t\t\tinsertPosition = this._positionToInsert;\n\t\t\t\t}\n\n\t\t\t\teditor.model.change( innerWriter => {\n\t\t\t\t\tconst params = Object.assign( extractDelimiters( text ), {\n\t\t\t\t\t\ttype: mathConfig.outputType\n\t\t\t\t\t} );\n\t\t\t\t\tconst mathElement = innerWriter.createElement( params.display ? 'mathtex-display' : 'mathtex-inline', params );\n\n\t\t\t\t\teditor.model.insertContent( mathElement, insertPosition );\n\n\t\t\t\t\tinnerWriter.setSelection( mathElement, 'on' );\n\t\t\t\t} );\n\n\t\t\t\tthis._positionToInsert.detach();\n\t\t\t\tthis._positionToInsert = null;\n\t\t\t} );\n\t\t}, 100 );\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport Widget from '@ckeditor/ckeditor5-widget/src/widget';\n\nimport MathUI from './mathui';\nimport MathEditing from './mathediting';\nimport AutoMath from './automath';\n\nexport default class Math extends Plugin {\n\tstatic get requires() {\n\t\treturn [ MathEditing, MathUI, AutoMath, Widget ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'Math';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/utils/getsubnodes\n */\n\n/* globals EventTarget, Event */\n\nexport default function getSubNodes( head, excludedProperties = new Set() ) {\n\tconst nodes = [ head ];\n\n\t// @if CK_DEBUG_WATCHDOG // const prevNodeMap = new Map();\n\n\t// Nodes are stored to prevent infinite looping.\n\tconst subNodes = new Set();\n\tlet nodeIndex = 0;\n\n\twhile ( nodes.length > nodeIndex ) {\n\t\t// Incrementing the iterator is much faster than changing size of the array with Array.prototype.shift().\n\t\tconst node = nodes[ nodeIndex++ ];\n\n\t\tif ( subNodes.has( node ) || shouldNodeBeSkipped( node ) || excludedProperties.has( node ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tsubNodes.add( node );\n\n\t\t// Handle arrays, maps, sets, custom collections that implements `[ Symbol.iterator ]()`, etc.\n\t\tif ( node[ Symbol.iterator ] ) {\n\t\t\t// The custom editor iterators might cause some problems if the editor is crashed.\n\t\t\ttry {\n\t\t\t\tfor ( const n of node ) {\n\t\t\t\t\tnodes.push( n );\n\n\t\t\t\t\t// @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( n ) ) {\n\t\t\t\t\t// @if CK_DEBUG_WATCHDOG // \tprevNodeMap.set( n, node );\n\t\t\t\t\t// @if CK_DEBUG_WATCHDOG // }\n\t\t\t\t}\n\t\t\t} catch ( err ) {\n\t\t\t\t// Do not log errors for broken structures\n\t\t\t\t// since we are in the error handling process already.\n\t\t\t\t// eslint-disable-line no-empty\n\t\t\t}\n\t\t} else {\n\t\t\tfor ( const key in node ) {\n\t\t\t\t// We share a reference via the protobuf library within the editors,\n\t\t\t\t// hence the shared value should be skipped. Although, it's not a perfect\n\t\t\t\t// solution since new places like that might occur in the future.\n\t\t\t\tif ( key === 'defaultValue' ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tnodes.push( node[ key ] );\n\n\t\t\t\t// @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( node[ key ] ) ) {\n\t\t\t\t// @if CK_DEBUG_WATCHDOG // \tprevNodeMap.set( node[ key ], node );\n\t\t\t\t// @if CK_DEBUG_WATCHDOG // }\n\t\t\t}\n\t\t}\n\t}\n\n\t// @if CK_DEBUG_WATCHDOG // return { subNodes, prevNodeMap };\n\n\treturn subNodes;\n}\n\nfunction shouldNodeBeSkipped( node ) {\n\tconst type = Object.prototype.toString.call( node );\n\tconst typeOfNode = typeof node;\n\n\treturn (\n\t\ttypeOfNode === 'number' ||\n\t\ttypeOfNode === 'boolean' ||\n\t\ttypeOfNode === 'string' ||\n\t\ttypeOfNode === 'symbol' ||\n\t\ttypeOfNode === 'function' ||\n\t\ttype === '[object Date]' ||\n\t\ttype === '[object RegExp]' ||\n\t\ttype === '[object Module]' ||\n\n\t\tnode === undefined ||\n\t\tnode === null ||\n\n\t\t// This flag is meant to exclude singletons shared across editor instances. So when an error is thrown in one editor,\n\t\t// the other editors connected through the reference to the same singleton are not restarted. This is a temporary workaround\n\t\t// until a better solution is found.\n\t\t// More in https://github.com/ckeditor/ckeditor5/issues/12292.\n\t\tnode._watchdogExcluded === true ||\n\n\t\t// Skip native DOM objects, e.g. Window, nodes, events, etc.\n\t\tnode instanceof EventTarget ||\n\t\tnode instanceof Event\n\t);\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n// The editor creator to use.\nimport BalloonEditorBase from '@ckeditor/ckeditor5-editor-balloon/src/ballooneditor';\n\nimport FindAndReplace from '@ckeditor/ckeditor5-find-and-replace/src/findandreplace';\nimport UploadAdapter from '@ckeditor/ckeditor5-adapter-ckfinder/src/uploadadapter';\nimport Autoformat from '@ckeditor/ckeditor5-autoformat/src/autoformat';\nimport Bold from '@ckeditor/ckeditor5-basic-styles/src/bold';\nimport Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';\nimport Superscript from '@ckeditor/ckeditor5-basic-styles/src/superscript';\nimport Subscript from '@ckeditor/ckeditor5-basic-styles/src/subscript';\nimport Underline from '@ckeditor/ckeditor5-basic-styles/src/underline';\nimport Strikethrough from '@ckeditor/ckeditor5-basic-styles/src/strikethrough';\nimport Code from '@ckeditor/ckeditor5-basic-styles/src/code';\nimport BlockQuote from '@ckeditor/ckeditor5-block-quote/src/blockquote';\nimport Heading from '@ckeditor/ckeditor5-heading/src/heading';\nimport Image from '@ckeditor/ckeditor5-image/src/image';\nimport ImageCaption from '@ckeditor/ckeditor5-image/src/imagecaption';\nimport ImageStyle from '@ckeditor/ckeditor5-image/src/imagestyle';\nimport ImageToolbar from '@ckeditor/ckeditor5-image/src/imagetoolbar';\nimport ImageUpload from '@ckeditor/ckeditor5-image/src/imageupload';\nimport ImageResize from '@ckeditor/ckeditor5-image/src/imageresize';\nimport Link from '@ckeditor/ckeditor5-link/src/link';\nimport AutoLink from '@ckeditor/ckeditor5-link/src/autolink';\nimport List from '@ckeditor/ckeditor5-list/src/list';\nimport ListProperties from '@ckeditor/ckeditor5-list/src/listproperties';\nimport TodoList from '@ckeditor/ckeditor5-list/src/todolist';\nimport Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';\nimport PasteFromOffice from '@ckeditor/ckeditor5-paste-from-office/src/pastefromoffice';\nimport PictureEditing from '@ckeditor/ckeditor5-image/src/pictureediting';\nimport Table from '@ckeditor/ckeditor5-table/src/table';\nimport TableToolbar from '@ckeditor/ckeditor5-table/src/tabletoolbar';\nimport TableProperties from '@ckeditor/ckeditor5-table/src/tableproperties';\nimport TableCellProperties from '@ckeditor/ckeditor5-table/src/tablecellproperties';\nimport TableCaption from '@ckeditor/ckeditor5-table/src/tablecaption';\nimport TableSelection from '@ckeditor/ckeditor5-table/src/tableselection';\nimport BlockToolbar from '@ckeditor/ckeditor5-ui/src/toolbar/block/blocktoolbar';\nimport HeadingButtonsUI from '@ckeditor/ckeditor5-heading/src/headingbuttonsui';\nimport ParagraphButtonUI from '@ckeditor/ckeditor5-paragraph/src/paragraphbuttonui';\nimport TextTransformation from '@ckeditor/ckeditor5-typing/src/texttransformation';\nimport Font from '@ckeditor/ckeditor5-font/src/font';\nimport FontColor from '@ckeditor/ckeditor5-font/src/fontcolor';\nimport FontBackgroundColor from '@ckeditor/ckeditor5-font/src/fontbackgroundcolor';\nimport CodeBlock from '@ckeditor/ckeditor5-code-block/src/codeblock';\nimport Mention from '@ckeditor/ckeditor5-mention/src/mention';\nimport Indent from '@ckeditor/ckeditor5-indent/src/indent';\nimport IndentBlock from '@ckeditor/ckeditor5-indent/src/indentblock';\nimport SelectAll from '@ckeditor/ckeditor5-select-all/src/selectall';\nimport HorizontalLine from '@ckeditor/ckeditor5-horizontal-line/src/horizontalline';\nimport Clipboard from '@ckeditor/ckeditor5-clipboard/src/clipboard';\nimport Enter from '@ckeditor/ckeditor5-enter/src/enter';\nimport ShiftEnter from '@ckeditor/ckeditor5-enter/src/shiftenter';\nimport Typing from '@ckeditor/ckeditor5-typing/src/typing';\nimport Undo from '@ckeditor/ckeditor5-undo/src/undo';\nimport RemoveFormat from '@ckeditor/ckeditor5-remove-format/src/removeformat';\nimport MentionCustomization from './mention_customization';\nimport UploadimagePlugin from './uploadimage';\nimport InternalLinkPlugin from './internallink';\nimport MarkdownImportPlugin from './markdownimport';\nimport CuttonotePlugin from './cuttonote';\nimport IncludeNote from './includenote';\nimport ReferenceLink from './referencelink';\nimport indentBlockShortcutPlugin from './indent_block_shortcut';\nimport removeFormatLinksPlugin from './remove_format_links';\nimport Mathematics from 'ckeditor5-math/src/math';\nimport AutoformatMath from 'ckeditor5-math/src/autoformatmath';\nimport EditorWatchdog from '@ckeditor/ckeditor5-watchdog/src/editorwatchdog';\n\n// expose so that Trilium can use it\n// eslint-disable-next-line no-undef\nwindow.EditorWatchdog = EditorWatchdog;\n\nexport default class BalloonEditor extends BalloonEditorBase {}\n\n// Plugins to include in the build.\nBalloonEditor.builtinPlugins = [\n\tClipboard, Enter, SelectAll, ShiftEnter, Typing, Undo, // essentials package expanded to allow selectively disable Enter and ShiftEnter\n\tUploadAdapter,\n\tAutoformat,\n\tBold,\n\tItalic,\n\tUnderline,\n\tStrikethrough,\n\tCode,\n\tSuperscript,\n\tSubscript,\n\tBlockQuote,\n\tHeading,\n\tImage,\n\tImageCaption,\n\tImageStyle,\n\tImageToolbar,\n\tImageUpload,\n\tImageResize,\n\tLink,\n\tAutoLink,\n\tList,\n\tListProperties,\n\tTodoList,\n\tParagraph,\n\tPasteFromOffice,\n\tPictureEditing,\n\tTable,\n\tTableToolbar,\n\tTableProperties,\n\tTableCellProperties,\n\tTableSelection,\n\tTableCaption,\n\tIndent,\n\tIndentBlock,\n\tBlockToolbar,\n\tParagraphButtonUI,\n\tHeadingButtonsUI,\n\tUploadimagePlugin,\n\tInternalLinkPlugin,\n\tMarkdownImportPlugin,\n\tCuttonotePlugin,\n\tTextTransformation,\n\tFont,\n\tFontColor,\n\tFontBackgroundColor,\n\tCodeBlock,\n\tSelectAll,\n\tHorizontalLine,\n\tRemoveFormat,\n\tFindAndReplace,\n\tMention,\n\tMentionCustomization,\n\tIncludeNote,\n\tReferenceLink,\n\tindentBlockShortcutPlugin,\n\tremoveFormatLinksPlugin,\n\tMathematics,\n\tAutoformatMath\n];\n\n// Editor configuration.\nBalloonEditor.defaultConfig = {\n\ttoolbar: {\n\t\titems: [\n\t\t\t'fontSize',\n\t\t\t'bold',\n\t\t\t'italic',\n\t\t\t'underline',\n\t\t\t'strikethrough',\n\t\t\t'superscript',\n\t\t\t'subscript',\n\t\t\t'fontColor',\n\t\t\t'fontBackgroundColor',\n\t\t\t'code',\n\t\t\t'link',\n\t\t\t'removeFormat',\n\t\t\t'internallink',\n\t\t\t'cuttonote'\n\t\t]\n\t},\n\timage: {\n\t\tstyles: [\n\t\t\t'alignLeft',\n\t\t\t'alignCenter',\n\t\t\t'alignRight',\n\t\t\t'full', // full and side are for BC since the old images have been created with these styles\n\t\t\t'side'\n\t\t],\n\t\tresizeOptions: [\n\t\t\t{\n\t\t\t\tname: 'imageResize:original',\n\t\t\t\tvalue: null,\n\t\t\t\ticon: 'original'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'imageResize:25',\n\t\t\t\tvalue: '25',\n\t\t\t\ticon: 'small'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'imageResize:50',\n\t\t\t\tvalue: '50',\n\t\t\t\ticon: 'medium'\n\t\t\t}\n\t\t],\n\t\ttoolbar: [\n\t\t\t'imageStyle:inline',\n\t\t\t'imageStyle:alignLeft',\n\t\t\t'imageStyle:alignCenter',\n\t\t\t'imageStyle:alignRight',\n\t\t\t'|',\n\t\t\t'imageResize:25',\n\t\t\t'imageResize:50',\n\t\t\t'imageResize:original',\n\t\t\t'|',\n\t\t\t'toggleImageCaption'\n\t\t]\n\t},\n\theading: {\n\t\toptions: [\n\t\t\t{ model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },\n\t\t\t// heading1 is not used since that should be a note's title\n\t\t\t{ model: 'heading2', view: 'h2', title: 'Heading 2', class: 'ck-heading_heading2' },\n\t\t\t{ model: 'heading3', view: 'h3', title: 'Heading 3', class: 'ck-heading_heading3' },\n\t\t\t{ model: 'heading4', view: 'h4', title: 'Heading 4', class: 'ck-heading_heading4' },\n\t\t\t{ model: 'heading5', view: 'h5', title: 'Heading 5', class: 'ck-heading_heading5' },\n\t\t\t{ model: 'heading6', view: 'h6', title: 'Heading 6', class: 'ck-heading_heading6' }\n\t\t]\n\t},\n\tblockToolbar: [\n\t\t'heading',\n\t\t'|',\n\t\t'bulletedList', 'numberedList', 'todoList',\n\t\t'|',\n\t\t'blockQuote', 'codeBlock', 'insertTable', 'internallink', 'includeNote', 'math',\n\t\t'|',\n\t\t'outdent', 'indent', 'horizontalLine',\n\t\t'|',\n\t\t'imageUpload',\n\t\t'markdownImport',\n\t\t'findAndReplace'\n\t],\n\ttable: {\n\t\tcontentToolbar: [\n\t\t\t'tableColumn',\n\t\t\t'tableRow',\n\t\t\t'mergeTableCells',\n\t\t\t'tableProperties',\n\t\t\t'tableCellProperties',\n\t\t\t'toggleTableCaption'\n\t\t]\n\t},\n\tlist: {\n\t\tproperties: {\n\t\t\tstyles: true,\n\t\t\tstartIndex: true,\n\t\t\treversed: true\n\t\t}\n\t},\n\tlink: {\n\t\tdefaultProtocol: 'https://'\n\t},\n\t// This value must be kept in sync with the language defined in webpack.config.js.\n\tlanguage: 'en'\n};\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/editorwatchdog\n */\n\n/* globals console */\n\nimport { throttle, cloneDeepWith, isElement } from 'lodash-es';\nimport areConnectedThroughProperties from './utils/areconnectedthroughproperties';\nimport Watchdog from './watchdog';\n\n/**\n * A watchdog for CKEditor 5 editors.\n *\n * See the {@glink features/watchdog Watchdog feature guide} to learn the rationale behind it and\n * how to use it.\n *\n * @extends {module:watchdog/watchdog~Watchdog}\n */\nexport default class EditorWatchdog extends Watchdog {\n\t/**\n\t * @param {*} Editor The editor class.\n\t * @param {module:watchdog/watchdog~WatchdogConfig} [watchdogConfig] The watchdog plugin configuration.\n\t */\n\tconstructor( Editor, watchdogConfig = {} ) {\n\t\tsuper( watchdogConfig );\n\n\t\t/**\n\t\t * The current editor instance.\n\t\t *\n\t\t * @private\n\t\t * @type {module:core/editor/editor~Editor}\n\t\t */\n\t\tthis._editor = null;\n\n\t\t/**\n\t\t * Throttled save method. The `save()` method is called the specified `saveInterval` after `throttledSave()` is called,\n\t\t * unless a new action happens in the meantime.\n\t\t *\n\t\t * @private\n\t\t * @type {Function}\n\t\t */\n\t\tthis._throttledSave = throttle(\n\t\t\tthis._save.bind( this ),\n\t\t\ttypeof watchdogConfig.saveInterval === 'number' ? watchdogConfig.saveInterval : 5000\n\t\t);\n\n\t\t/**\n\t\t * The latest saved editor data represented as a root name -> root data object.\n\t\t *\n\t\t * @private\n\t\t * @member {Object.<String,String>} #_data\n\t\t */\n\n\t\t/**\n\t\t * The last document version.\n\t\t *\n\t\t * @private\n\t\t * @member {Number} #_lastDocumentVersion\n\t\t */\n\n\t\t/**\n\t\t * The editor source element or data.\n\t\t *\n\t\t * @private\n\t\t * @member {HTMLElement|String|Object.<String|String>} #_elementOrData\n\t\t */\n\n\t\t/**\n\t\t * The editor configuration.\n\t\t *\n\t\t * @private\n\t\t * @member {Object|undefined} #_config\n\t\t */\n\n\t\t// Set default creator and destructor functions:\n\t\tthis._creator = ( ( elementOrData, config ) => Editor.create( elementOrData, config ) );\n\t\tthis._destructor = editor => editor.destroy();\n\t}\n\n\t/**\n\t * The current editor instance.\n\t *\n\t * @readonly\n\t * @type {module:core/editor/editor~Editor}\n\t */\n\tget editor() {\n\t\treturn this._editor;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tget _item() {\n\t\treturn this._editor;\n\t}\n\n\t/**\n\t * Sets the function that is responsible for the editor creation.\n\t * It expects a function that should return a promise.\n\t *\n\t *\t\twatchdog.setCreator( ( element, config ) => ClassicEditor.create( element, config ) );\n\t *\n\t * @method #setCreator\n\t * @param {Function} creator\n\t */\n\n\t/**\n\t * Sets the function that is responsible for the editor destruction.\n\t * Overrides the default destruction function, which destroys only the editor instance.\n\t * It expects a function that should return a promise or `undefined`.\n\t *\n\t *\t\twatchdog.setDestructor( editor => {\n\t *\t\t\t// Do something before the editor is destroyed.\n\t *\n\t *\t\t\treturn editor\n\t *\t\t\t\t.destroy()\n\t *\t\t\t\t.then( () => {\n\t *\t\t\t\t\t// Do something after the editor is destroyed.\n\t *\t\t\t\t} );\n\t *\t\t} );\n\t *\n\t * @method #setDestructor\n\t * @param {Function} destructor\n\t */\n\n\t/**\n\t * Restarts the editor instance. This method is called whenever an editor error occurs. It fires the `restart` event and changes\n\t * the state to `initializing`.\n\t *\n\t * @protected\n\t * @fires restart\n\t * @returns {Promise}\n\t */\n\t_restart() {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis.state = 'initializing';\n\t\t\t\tthis._fire( 'stateChange' );\n\n\t\t\t\treturn this._destroy();\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\tconsole.error( 'An error happened during the editor destroying.', err );\n\t\t\t} )\n\t\t\t.then( () => {\n\t\t\t\tif ( typeof this._elementOrData === 'string' ) {\n\t\t\t\t\treturn this.create( this._data, this._config, this._config.context );\n\t\t\t\t} else {\n\t\t\t\t\tconst updatedConfig = Object.assign( {}, this._config, {\n\t\t\t\t\t\tinitialData: this._data\n\t\t\t\t\t} );\n\n\t\t\t\t\treturn this.create( this._elementOrData, updatedConfig, updatedConfig.context );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t.then( () => {\n\t\t\t\tthis._fire( 'restart' );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Creates the editor instance and keeps it running, using the defined creator and destructor.\n\t *\n\t * @param {HTMLElement|String|Object.<String|String>} [elementOrData] The editor source element or the editor data.\n\t * @param {module:core/editor/editorconfig~EditorConfig} [config] The editor configuration.\n\t * @param {Object} [context] A context for the editor.\n\t *\n\t * @returns {Promise}\n\t */\n\tcreate( elementOrData = this._elementOrData, config = this._config, context ) {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tsuper._startErrorHandling();\n\n\t\t\t\tthis._elementOrData = elementOrData;\n\n\t\t\t\t// Clone configuration because it might be shared within multiple watchdog instances. Otherwise,\n\t\t\t\t// when an error occurs in one of these editors, the watchdog will restart all of them.\n\t\t\t\tthis._config = this._cloneEditorConfiguration( config ) || {};\n\n\t\t\t\tthis._config.context = context;\n\n\t\t\t\treturn this._creator( elementOrData, this._config );\n\t\t\t} )\n\t\t\t.then( editor => {\n\t\t\t\tthis._editor = editor;\n\n\t\t\t\teditor.model.document.on( 'change:data', this._throttledSave );\n\n\t\t\t\tthis._lastDocumentVersion = editor.model.document.version;\n\t\t\t\tthis._data = this._getData();\n\n\t\t\t\tthis.state = 'ready';\n\t\t\t\tthis._fire( 'stateChange' );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Destroys the watchdog and the current editor instance. It fires the callback\n\t * registered in {@link #setDestructor `setDestructor()`} and uses it to destroy the editor instance.\n\t * It also sets the state to `destroyed`.\n\t *\n\t * @returns {Promise}\n\t */\n\tdestroy() {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis.state = 'destroyed';\n\t\t\t\tthis._fire( 'stateChange' );\n\n\t\t\t\tsuper.destroy();\n\n\t\t\t\treturn this._destroy();\n\t\t\t} );\n\t}\n\n\t/**\n\t * @private\n\t * @returns {Promise}\n\t */\n\t_destroy() {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis._stopErrorHandling();\n\n\t\t\t\t// Save data if there is a remaining editor data change.\n\t\t\t\tthis._throttledSave.flush();\n\n\t\t\t\tconst editor = this._editor;\n\n\t\t\t\tthis._editor = null;\n\n\t\t\t\t// Remove the `change:data` listener before destroying the editor.\n\t\t\t\t// Incorrectly written plugins may trigger firing `change:data` events during the editor destruction phase\n\t\t\t\t// causing the watchdog to call `editor.getData()` when some parts of editor are already destroyed.\n\t\t\t\teditor.model.document.off( 'change:data', this._throttledSave );\n\n\t\t\t\treturn this._destructor( editor );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Saves the editor data, so it can be restored after the crash even if the data cannot be fetched at\n\t * the moment of the crash.\n\t *\n\t * @private\n\t */\n\t_save() {\n\t\tconst version = this._editor.model.document.version;\n\n\t\ttry {\n\t\t\tthis._data = this._getData();\n\t\t\tthis._lastDocumentVersion = version;\n\t\t} catch ( err ) {\n\t\t\tconsole.error(\n\t\t\t\terr,\n\t\t\t\t'An error happened during restoring editor data. ' +\n\t\t\t\t'Editor will be restored from the previously saved data.'\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @protected\n\t * @param {Set} props\n\t */\n\t_setExcludedProperties( props ) {\n\t\tthis._excludedProps = props;\n\t}\n\n\t/**\n\t * Returns the editor data.\n\t *\n\t * @private\n\t * @returns {Object<String,String>}\n\t */\n\t_getData() {\n\t\tconst data = {};\n\n\t\tfor ( const rootName of this._editor.model.document.getRootNames() ) {\n\t\t\tdata[ rootName ] = this._editor.data.get( { rootName } );\n\t\t}\n\n\t\treturn data;\n\t}\n\n\t/**\n\t * Traverses the error context and the current editor to find out whether these structures are connected\n\t * to each other via properties.\n\t *\n\t * @protected\n\t * @param {module:utils/ckeditorerror~CKEditorError} error\n\t */\n\t_isErrorComingFromThisItem( error ) {\n\t\treturn areConnectedThroughProperties( this._editor, error.context, this._excludedProps );\n\t}\n\n\t/**\n\t * Clones the editor configuration.\n\t *\n\t * @private\n\t * @param {Object} config\n\t */\n\t_cloneEditorConfiguration( config ) {\n\t\treturn cloneDeepWith( config, ( value, key ) => {\n\t\t\t// Leave DOM references.\n\t\t\tif ( isElement( value ) ) {\n\t\t\t\treturn value;\n\t\t\t}\n\n\t\t\tif ( key === 'context' ) {\n\t\t\t\treturn value;\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Fired after the watchdog restarts the error in case of a crash.\n\t *\n\t * @event restart\n\t */\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/watchdog\n */\n\n/* globals window */\n\n/**\n * An abstract watchdog class that handles most of the error handling process and the state of the underlying component.\n *\n * See the {@glink features/watchdog Watchdog feature guide} to learn the rationale behind it and how to use it.\n *\n * @private\n * @abstract\n */\nexport default class Watchdog {\n\t/**\n\t * @param {module:watchdog/watchdog~WatchdogConfig} config The watchdog plugin configuration.\n\t */\n\tconstructor( config ) {\n\t\t/**\n\t\t * An array of crashes saved as an object with the following properties:\n\t\t *\n\t\t * * `message`: `String`,\n\t\t * * `stack`: `String`,\n\t\t * * `date`: `Number`,\n\t\t * * `filename`: `String | undefined`,\n\t\t * * `lineno`: `Number | undefined`,\n\t\t * * `colno`: `Number | undefined`,\n\t\t *\n\t\t * @public\n\t\t * @readonly\n\t\t * @type {Array.<Object>}\n\t\t */\n\t\tthis.crashes = [];\n\n\t\t/**\n\t\t * Specifies the state of the item watched by the watchdog. The state can be one of the following values:\n\t\t *\n\t\t * * `initializing` &ndash; Before the first initialization, and after crashes, before the item is ready.\n\t\t * * `ready` &ndash; A state when the user can interact with the item.\n\t\t * * `crashed` &ndash; A state when an error occurs. It quickly changes to `initializing` or `crashedPermanently`\n\t\t * depending on how many and how frequent errors have been caught recently.\n\t\t * * `crashedPermanently` &ndash; A state when the watchdog stops reacting to errors and keeps the item it is watching crashed,\n\t\t * * `destroyed` &ndash; A state when the item is manually destroyed by the user after calling `watchdog.destroy()`.\n\t\t *\n\t\t * @public\n\t\t * @type {'initializing'|'ready'|'crashed'|'crashedPermanently'|'destroyed'}\n\t\t */\n\t\tthis.state = 'initializing';\n\n\t\t/**\n\t\t * @protected\n\t\t * @type {Number}\n\t\t * @see module:watchdog/watchdog~WatchdogConfig\n\t\t */\n\t\tthis._crashNumberLimit = typeof config.crashNumberLimit === 'number' ? config.crashNumberLimit : 3;\n\n\t\t/**\n\t\t * Returns the result of the `Date.now()` call. It can be overridden in tests to mock time as some popular\n\t\t * approaches like `sinon.useFakeTimers()` do not work well with error handling.\n\t\t *\n\t\t * @protected\n\t\t */\n\t\tthis._now = Date.now;\n\n\t\t/**\n\t\t * @protected\n\t\t * @type {Number}\n\t\t * @see module:watchdog/watchdog~WatchdogConfig\n\t\t */\n\t\tthis._minimumNonErrorTimePeriod = typeof config.minimumNonErrorTimePeriod === 'number' ? config.minimumNonErrorTimePeriod : 5000;\n\n\t\t/**\n\t\t * Checks if the event error comes from the underlying item and restarts the item.\n\t\t *\n\t\t * @private\n\t\t * @type {Function}\n\t\t */\n\t\tthis._boundErrorHandler = evt => {\n\t\t\t// `evt.error` is exposed by EventError while `evt.reason` is available in PromiseRejectionEvent.\n\t\t\tconst error = evt.error || evt.reason;\n\n\t\t\t// Note that `evt.reason` might be everything that is in the promise rejection.\n\t\t\t// Similarly everything that is thrown lands in `evt.error`.\n\t\t\tif ( error instanceof Error ) {\n\t\t\t\tthis._handleError( error, evt );\n\t\t\t}\n\t\t};\n\n\t\t/**\n\t\t * The creation method.\n\t\t *\n\t\t * @protected\n\t\t * @member {Function} #_creator\n\t\t * @see #setCreator\n\t\t */\n\n\t\t/**\n\t\t * The destruction method.\n\t\t *\n\t\t * @protected\n\t\t * @member {Function} #_destructor\n\t\t * @see #setDestructor\n\t\t */\n\n\t\t/**\n\t\t * The watched item.\n\t\t *\n\t\t * @abstract\n\t\t * @protected\n\t\t * @member {Object|undefined} #_item\n\t\t */\n\n\t\t/**\n\t\t * The method responsible for restarting the watched item.\n\t\t *\n\t\t * @abstract\n\t\t * @protected\n\t\t * @method #_restart\n\t\t */\n\n\t\t/**\n\t\t * Traverses the error context and the watched item to find out whether the error should\n\t\t * be handled by the given item.\n\t\t *\n\t\t * @abstract\n\t\t * @protected\n\t\t * @method #_isErrorComingFromThisItem\n\t\t * @param {module:utils/ckeditorerror~CKEditorError} error\n\t\t */\n\n\t\t/**\n\t\t * A dictionary of event emitter listeners.\n\t\t *\n\t\t * @private\n\t\t * @type {Object.<String,Array.<Function>>}\n\t\t */\n\t\tthis._listeners = {};\n\n\t\tif ( !this._restart ) {\n\t\t\tthrow new Error(\n\t\t\t\t'The Watchdog class was split into the abstract `Watchdog` class and the `EditorWatchdog` class. ' +\n\t\t\t\t'Please, use `EditorWatchdog` if you have used the `Watchdog` class previously.'\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * Sets the function that is responsible for creating watched items.\n\t *\n\t * @param {Function} creator A callback responsible for creating an item. Returns a promise\n\t * that is resolved when the item is created.\n\t */\n\tsetCreator( creator ) {\n\t\tthis._creator = creator;\n\t}\n\n\t/**\n\t * Sets the function that is responsible for destroying watched items.\n\t *\n\t * @param {Function} destructor A callback that takes the item and returns the promise\n\t * to the destroying process.\n\t */\n\tsetDestructor( destructor ) {\n\t\tthis._destructor = destructor;\n\t}\n\n\t/**\n\t * Destroys the watchdog and releases the resources.\n\t */\n\tdestroy() {\n\t\tthis._stopErrorHandling();\n\n\t\tthis._listeners = {};\n\t}\n\n\t/**\n\t * Starts listening to a specific event name by registering a callback that will be executed\n\t * whenever an event with a given name fires.\n\t *\n\t * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation.\n\t *\n\t * @param {String} eventName The event name.\n\t * @param {Function} callback A callback which will be added to event listeners.\n\t */\n\ton( eventName, callback ) {\n\t\tif ( !this._listeners[ eventName ] ) {\n\t\t\tthis._listeners[ eventName ] = [];\n\t\t}\n\n\t\tthis._listeners[ eventName ].push( callback );\n\t}\n\n\t/**\n\t * Stops listening to the specified event name by removing the callback from event listeners.\n\t *\n\t * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation.\n\t *\n\t * @param {String} eventName The event name.\n\t * @param {Function} callback A callback which will be removed from event listeners.\n\t */\n\toff( eventName, callback ) {\n\t\tthis._listeners[ eventName ] = this._listeners[ eventName ]\n\t\t\t.filter( cb => cb !== callback );\n\t}\n\n\t/**\n\t * Fires an event with a given event name and arguments.\n\t *\n\t * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation.\n\t *\n\t * @protected\n\t * @param {String} eventName The event name.\n\t * @param  {...*} args Event arguments.\n\t */\n\t_fire( eventName, ...args ) {\n\t\tconst callbacks = this._listeners[ eventName ] || [];\n\n\t\tfor ( const callback of callbacks ) {\n\t\t\tcallback.apply( this, [ null, ...args ] );\n\t\t}\n\t}\n\n\t/**\n\t * Starts error handling by attaching global error handlers.\n\t *\n\t * @protected\n\t */\n\t_startErrorHandling() {\n\t\twindow.addEventListener( 'error', this._boundErrorHandler );\n\t\twindow.addEventListener( 'unhandledrejection', this._boundErrorHandler );\n\t}\n\n\t/**\n\t * Stops error handling by detaching global error handlers.\n\t *\n\t * @protected\n\t */\n\t_stopErrorHandling() {\n\t\twindow.removeEventListener( 'error', this._boundErrorHandler );\n\t\twindow.removeEventListener( 'unhandledrejection', this._boundErrorHandler );\n\t}\n\n\t/**\n\t * Checks if an error comes from the watched item and restarts it.\n\t * It reacts to {@link module:utils/ckeditorerror~CKEditorError `CKEditorError` errors} only.\n\t *\n\t * @private\n\t * @fires error\n\t * @param {Error} error Error.\n\t * @param {ErrorEvent|PromiseRejectionEvent} evt An error event.\n\t */\n\t_handleError( error, evt ) {\n\t\t// @if CK_DEBUG // if ( error.is && error.is( 'CKEditorError' ) && error.context === undefined ) {\n\t\t// @if CK_DEBUG // console.warn( 'The error is missing its context and Watchdog cannot restart the proper item.' );\n\t\t// @if CK_DEBUG // }\n\n\t\tif ( this._shouldReactToError( error ) ) {\n\t\t\tthis.crashes.push( {\n\t\t\t\tmessage: error.message,\n\t\t\t\tstack: error.stack,\n\n\t\t\t\t// `evt.filename`, `evt.lineno` and `evt.colno` are available only in ErrorEvent events\n\t\t\t\tfilename: evt.filename,\n\t\t\t\tlineno: evt.lineno,\n\t\t\t\tcolno: evt.colno,\n\t\t\t\tdate: this._now()\n\t\t\t} );\n\n\t\t\tconst causesRestart = this._shouldRestart();\n\n\t\t\tthis.state = 'crashed';\n\t\t\tthis._fire( 'stateChange' );\n\t\t\tthis._fire( 'error', { error, causesRestart } );\n\n\t\t\tif ( causesRestart ) {\n\t\t\t\tthis._restart();\n\t\t\t} else {\n\t\t\t\tthis.state = 'crashedPermanently';\n\t\t\t\tthis._fire( 'stateChange' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks whether an error should be handled by the watchdog.\n\t *\n\t * @private\n\t * @param {Error} error An error that was caught by the error handling process.\n\t */\n\t_shouldReactToError( error ) {\n\t\treturn (\n\t\t\terror.is &&\n\t\t\terror.is( 'CKEditorError' ) &&\n\t\t\terror.context !== undefined &&\n\n\t\t\t// In some cases the watched item should not be restarted - e.g. during the item initialization.\n\t\t\t// That's why the `null` was introduced as a correct error context which does cause restarting.\n\t\t\terror.context !== null &&\n\n\t\t\t// Do not react to errors if the watchdog is in states other than `ready`.\n\t\t\tthis.state === 'ready' &&\n\n\t\t\tthis._isErrorComingFromThisItem( error )\n\t\t);\n\t}\n\n\t/**\n\t * Checks if the watchdog should restart the underlying item.\n\t *\n\t * @private\n\t */\n\t_shouldRestart() {\n\t\tif ( this.crashes.length <= this._crashNumberLimit ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst lastErrorTime = this.crashes[ this.crashes.length - 1 ].date;\n\t\tconst firstMeaningfulErrorTime = this.crashes[ this.crashes.length - 1 - this._crashNumberLimit ].date;\n\n\t\tconst averageNonErrorTimePeriod = ( lastErrorTime - firstMeaningfulErrorTime ) / this._crashNumberLimit;\n\n\t\treturn averageNonErrorTimePeriod > this._minimumNonErrorTimePeriod;\n\t}\n\n\t/**\n\t * Fired when a new {@link module:utils/ckeditorerror~CKEditorError `CKEditorError`} error connected to the watchdog instance occurs\n\t * and the watchdog will react to it.\n\t *\n\t * \twatchdog.on( 'error', ( evt, { error, causesRestart } ) => {\n\t * \t\tconsole.log( 'An error occurred.' );\n\t * \t} );\n\t *\n\t * @event error\n\t */\n}\n\n/**\n * The watchdog plugin configuration.\n *\n * @typedef {Object} WatchdogConfig\n *\n * @property {Number} [crashNumberLimit=3] A threshold specifying the number of watched item crashes\n * when the watchdog stops restarting the item in case of errors.\n * After this limit is reached and the time between the last errors is shorter than `minimumNonErrorTimePeriod`,\n * the watchdog changes its state to `crashedPermanently` and it stops restarting the item. This prevents an infinite restart loop.\n *\n * @property {Number} [minimumNonErrorTimePeriod=5000] An average number of milliseconds between the last watched item errors\n * (defaults to 5000). When the period of time between errors is lower than that and the `crashNumberLimit` is also reached,\n * the watchdog changes its state to `crashedPermanently` and it stops restarting the item. This prevents an infinite restart loop.\n *\n * @property {Number} [saveInterval=5000] A minimum number of milliseconds between saving the editor data internally (defaults to 5000).\n * Note that for large documents this might impact the editor performance.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/utils/areconnectedthroughproperties\n */\n\n/* globals console */\n\nimport getSubNodes from './getsubnodes';\n\n/**\n * Traverses both structures to find out whether there is a reference that is shared between both structures.\n *\n * @param {Object|Array} target1\n * @param {Object|Array} target2\n * @returns {Boolean}\n */\nexport default function areConnectedThroughProperties( target1, target2, excludedNodes = new Set() ) {\n\tif ( target1 === target2 && isObject( target1 ) ) {\n\t\treturn true;\n\t}\n\n\t// @if CK_DEBUG_WATCHDOG // return checkConnectionBetweenProps( target1, target2, excludedNodes );\n\n\tconst subNodes1 = getSubNodes( target1, excludedNodes );\n\tconst subNodes2 = getSubNodes( target2, excludedNodes );\n\n\tfor ( const node of subNodes1 ) {\n\t\tif ( subNodes2.has( node ) ) {\n\t\t\treturn true;\n\t\t}\n\t}\n\n\treturn false;\n}\n\n/* istanbul ignore next */\n// eslint-disable-next-line\nfunction checkConnectionBetweenProps( target1, target2, excludedNodes ) {\n\tconst { subNodes: subNodes1, prevNodeMap: prevNodeMap1 } = getSubNodes( target1, excludedNodes.subNodes );\n\tconst { subNodes: subNodes2, prevNodeMap: prevNodeMap2 } = getSubNodes( target2, excludedNodes.subNodes );\n\n\tfor ( const sharedNode of subNodes1 ) {\n\t\tif ( subNodes2.has( sharedNode ) ) {\n\t\t\tconst connection = [];\n\n\t\t\tconnection.push( sharedNode );\n\n\t\t\tlet node = prevNodeMap1.get( sharedNode );\n\n\t\t\twhile ( node && node !== target1 ) {\n\t\t\t\tconnection.push( node );\n\t\t\t\tnode = prevNodeMap1.get( node );\n\t\t\t}\n\n\t\t\tnode = prevNodeMap2.get( sharedNode );\n\n\t\t\twhile ( node && node !== target2 ) {\n\t\t\t\tconnection.unshift( node );\n\t\t\t\tnode = prevNodeMap2.get( node );\n\t\t\t}\n\n\t\t\tconsole.log( '--------' );\n\t\t\tconsole.log( { target1 } );\n\t\t\tconsole.log( { sharedNode } );\n\t\t\tconsole.log( { target2 } );\n\t\t\tconsole.log( { connection } );\n\n\t\t\treturn true;\n\t\t}\n\t}\n\n\treturn false;\n}\n\nfunction isObject( structure ) {\n\treturn typeof structure === 'object' && structure !== null;\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/typing\n */\n\nimport { Plugin, type PluginDependencies } from '@ckeditor/ckeditor5-core';\nimport Input from './input';\nimport Delete from './delete';\n\n/**\n * The typing feature. It handles typing.\n *\n * This is a \"glue\" plugin which loads the {@link module:typing/input~Input} and {@link module:typing/delete~Delete}\n * plugins.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Typing extends Plugin {\n\tpublic static get requires(): PluginDependencies {\n\t\treturn [ Input, Delete ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Typing' {\n\t\treturn 'Typing';\n\t}\n}\n\ndeclare module '@ckeditor/ckeditor5-core' {\n\tinterface PluginsMap {\n\t\t[ Typing.pluginName ]: Typing;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/bold\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport BoldEditing from './bold/boldediting';\nimport BoldUI from './bold/boldui';\n\n/**\n * The bold feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature documentation}\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/bold/boldediting~BoldEditing bold editing feature}\n * and {@link module:basic-styles/bold/boldui~BoldUI bold UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Bold extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ BoldEditing, BoldUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Bold';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/italic\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ItalicEditing from './italic/italicediting';\nimport ItalicUI from './italic/italicui';\n\n/**\n * The italic feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature documentation}\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/italic/italicediting~ItalicEditing} and\n * {@link module:basic-styles/italic/italicui~ItalicUI} plugins.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Italic extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ItalicEditing, ItalicUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Italic';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/underline\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport UnderlineEditing from './underline/underlineediting';\nimport UnderlineUI from './underline/underlineui';\n\n/**\n * The underline feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature documentation}\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/underline/underlineediting~UnderlineEditing} and\n * {@link module:basic-styles/underline/underlineui~UnderlineUI} plugins.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Underline extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ UnderlineEditing, UnderlineUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Underline';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/strikethrough\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport StrikethroughEditing from './strikethrough/strikethroughediting';\nimport StrikethroughUI from './strikethrough/strikethroughui';\n\n/**\n * The strikethrough feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature documentation}\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/strikethrough/strikethroughediting~StrikethroughEditing} and\n * {@link module:basic-styles/strikethrough/strikethroughui~StrikethroughUI} plugins.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Strikethrough extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ StrikethroughEditing, StrikethroughUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Strikethrough';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/code\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport CodeEditing from './code/codeediting';\nimport CodeUI from './code/codeui';\n\nimport '../theme/code.css';\n\n/**\n * The code feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature documentation}\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/code/codeediting~CodeEditing code editing feature}\n * and {@link module:basic-styles/code/codeui~CodeUI code UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Code extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ CodeEditing, CodeUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Code';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/superscript\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport SuperscriptEditing from './superscript/superscriptediting';\nimport SuperscriptUI from './superscript/superscriptui';\n\n/**\n * The superscript feature.\n *\n * It loads the {@link module:basic-styles/superscript/superscriptediting~SuperscriptEditing} and\n * {@link module:basic-styles/superscript/superscriptui~SuperscriptUI} plugins.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Superscript extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ SuperscriptEditing, SuperscriptUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Superscript';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/subscript\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport SubscriptEditing from './subscript/subscriptediting';\nimport SubscriptUI from './subscript/subscriptui';\n\n/**\n * The subscript feature.\n *\n * It loads the {@link module:basic-styles/subscript/subscriptediting~SubscriptEditing} and\n * {@link module:basic-styles/subscript/subscriptui~SubscriptUI} plugins.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Subscript extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ SubscriptEditing, SubscriptUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Subscript';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquote\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport BlockQuoteEditing from './blockquoteediting';\nimport BlockQuoteUI from './blockquoteui';\n\n/**\n * The block quote plugin.\n *\n * For more information about this feature check the {@glink api/block-quote package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:block-quote/blockquoteediting~BlockQuoteEditing block quote editing feature}\n * and {@link module:block-quote/blockquoteui~BlockQuoteUI block quote UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BlockQuote extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ BlockQuoteEditing, BlockQuoteUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'BlockQuote';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/heading\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport HeadingEditing from './headingediting';\nimport HeadingUI from './headingui';\n\nimport '../theme/heading.css';\n\n/**\n * The headings feature.\n *\n * For a detailed overview, check the {@glink features/headings Headings feature documentation}\n * and the {@glink api/heading package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:heading/headingediting~HeadingEditing heading editing feature}\n * and {@link module:heading/headingui~HeadingUI heading UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Heading extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ HeadingEditing, HeadingUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Heading';\n\t}\n}\n\n/**\n * The configuration of the heading feature. Introduced by the {@link module:heading/headingediting~HeadingEditing} feature.\n *\n * Read more in {@link module:heading/heading~HeadingConfig}.\n *\n * @member {module:heading/heading~HeadingConfig} module:core/editor/editorconfig~EditorConfig#heading\n */\n\n/**\n * The configuration of the heading feature.\n * The option is used by the {@link module:heading/headingediting~HeadingEditing} feature.\n *\n *\t\tClassicEditor\n *\t\t\t.create( {\n * \t\t\t\theading: ... // Heading feature config.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface HeadingConfig\n */\n\n/**\n * The available heading options.\n *\n * The default value is:\n *\n *\t\tconst headingConfig = {\n *\t\t\toptions: [\n *\t\t\t\t{ model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },\n *\t\t\t\t{ model: 'heading1', view: 'h2', title: 'Heading 1', class: 'ck-heading_heading1' },\n *\t\t\t\t{ model: 'heading2', view: 'h3', title: 'Heading 2', class: 'ck-heading_heading2' },\n *\t\t\t\t{ model: 'heading3', view: 'h4', title: 'Heading 3', class: 'ck-heading_heading3' }\n *\t\t\t]\n *\t\t};\n *\n * It defines 3 levels of headings. In the editor model they will use `heading1`, `heading2`, and `heading3` elements.\n * Their respective view elements (so the elements output by the editor) will be: `h2`, `h3`, and `h4`. This means that\n * if you choose \"Heading 1\" in the headings dropdown the editor will turn the current block to `<heading1>` in the model\n * which will result in rendering (and outputting to data) the `<h2>` element.\n *\n * The `title` and `class` properties will be used by the `headings` dropdown to render available options.\n * Usually, the first option in the headings dropdown is the \"Paragraph\" option, hence it's also defined on the list.\n * However, you don't need to define its view representation because it's handled by\n * the {@link module:paragraph/paragraph~Paragraph} feature (which is required by\n * the {@link module:heading/headingediting~HeadingEditing} feature).\n *\n * You can **read more** about configuring heading levels and **see more examples** in\n * the {@glink features/headings Headings} guide.\n *\n * Note: In the model you should always start from `heading1`, regardless of how the headings are represented in the view.\n * That's assumption is used by features like {@link module:autoformat/autoformat~Autoformat} to know which element\n * they should use when applying the first level heading.\n *\n * The defined headings are also available as values passed to the `'heading'` command under their model names.\n * For example, the below code will apply `<heading1>` to the current selection:\n *\n *\t\teditor.execute( 'heading', { value: 'heading1' } );\n *\n * @member {Array.<module:heading/heading~HeadingOption>} module:heading/heading~HeadingConfig#options\n */\n\n/**\n * Heading option descriptor.\n *\n * @typedef {Object} module:heading/heading~HeadingOption\n * @property {String} model Name of the model element to convert.\n * @property {module:engine/view/elementdefinition~ElementDefinition} view Definition of a view element to convert from/to.\n * @property {String} title The user-readable title of the option.\n * @property {String} class The class which will be added to the dropdown item representing this option.\n * @property {String} [icon] Icon used by {@link module:heading/headingbuttonsui~HeadingButtonsUI}. It can be omitted when using\n * the default configuration.\n * @extends module:engine/conversion/conversion~ConverterDefinition\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport ImageBlock from './imageblock';\nimport ImageInline from './imageinline';\n\nimport '../theme/image.css';\n\n/**\n * The image plugin.\n *\n * For a detailed overview, check the {@glink features/images/images-overview image feature} documentation.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * {@link module:image/imageblock~ImageBlock},\n * * {@link module:image/imageinline~ImageInline},\n *\n * Usually, it is used in conjunction with other plugins from this package. See the {@glink api/image package page}\n * for more information.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Image extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageBlock, ImageInline ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Image';\n\t}\n}\n\n/**\n * The configuration of the image features. Used by the image features in the `@ckeditor/ckeditor5-image` package.\n *\n * Read more in {@link module:image/image~ImageConfig}.\n *\n * @member {module:image/image~ImageConfig} module:core/editor/editorconfig~EditorConfig#image\n */\n\n/**\n * The configuration of the image features. Used by the image features in the `@ckeditor/ckeditor5-image` package.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n * \t\t\t\timage: ... // Image feature options.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface ImageConfig\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageCaptionEditing from './imagecaption/imagecaptionediting';\nimport ImageCaptionUI from './imagecaption/imagecaptionui';\n\nimport '../theme/imagecaption.css';\n\n/**\n * The image caption plugin.\n *\n * For a detailed overview, check the {@glink features/images/images-captions image caption} documentation.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageCaption extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageCaptionEditing, ImageCaptionUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageCaption';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageStyleEditing from './imagestyle/imagestyleediting';\nimport ImageStyleUI from './imagestyle/imagestyleui';\n\n/**\n * The image style plugin.\n *\n * For a detailed overview of the image styles feature, check the {@glink features/images/images-styles documentation}.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n * * {@link module:image/imagestyle/imagestyleediting~ImageStyleEditing},\n * * {@link module:image/imagestyle/imagestyleui~ImageStyleUI}\n *\n * It provides a default configuration, which can be extended or overwritten.\n * Read more about the {@link module:image/image~ImageConfig#styles image styles configuration}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageStyle extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageStyleEditing, ImageStyleUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageStyle';\n\t}\n}\n\n/**\n * The configuration for the {@link module:image/imagestyle~ImageStyle} plugin that should be provided\n * while creating the editor instance.\n *\n * A detailed information about the default configuration and customization can be found in\n * {@link module:image/image~ImageConfig#styles `ImageConfig#styles`}.\n *\n * @interface ImageStyleConfig\n */\n\n/**\n * A list of the image style options.\n *\n * @member {Array.<module:image/imagestyle~ImageStyleOptionDefinition>} module:image/imagestyle~ImageStyleConfig#options\n */\n\n/**\n * The {@link module:image/imagestyle `ImageStyle`} plugin requires a list of the\n * {@link module:image/imagestyle~ImageStyleConfig#options image style options} to work properly.\n * The default configuration is provided (listed below) and can be customized while creating the editor instance.\n *\n * # **Command**\n *\n * The {@link module:image/imagestyle/imagestylecommand~ImageStyleCommand `imageStyleCommand`}\n * is configured based on the defined options,\n * so you can change the style of the selected image by executing the following command:\n *\n *\t\teditor.execute( 'imageStyle' { value: 'alignLeft' } );\n *\n * # **Buttons**\n *\n * All of the image style options provided in the configuration are registered\n * in the {@link module:ui/componentfactory~ComponentFactory UI components factory} with the \"imageStyle:\" prefixes and can be used\n * in the {@link module:image/image~ImageConfig#toolbar image toolbar configuration}. The buttons available by default depending\n * on the loaded plugins are listed in the next section.\n *\n * Read more about styling images in the {@glink features/images/images-styles Image styles guide}.\n *\n * # **Default options and buttons**\n *\n * If the custom configuration is not provided, the default configuration will be used depending on the loaded\n * image editing plugins.\n *\n * * If both {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} and\n * {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} plugins are loaded\n * (which is usually the default editor configuration), the following options will be available for the toolbar\n * configuration. These options will be registered as the buttons with the \"imageStyle:\" prefixes.\n *\n *\t\tconst imageDefaultConfig = {\n *\t\t\tstyles: {\n *\t\t\t\toptions: [\n *\t\t\t\t\t'inline', 'alignLeft', 'alignRight',\n *\t\t\t\t\t'alignCenter', 'alignBlockLeft', 'alignBlockRight',\n *\t\t\t\t\t'block', 'side'\n *\t\t\t\t]\n *\t\t\t}\n *\t\t};\n *\n * * If only the {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugin is loaded,\n * the following buttons (options) and groups will be available for the toolbar configuration.\n * These options will be registered as the buttons with the \"imageStyle:\" prefixes.\n *\n *\t\tconst imageDefaultConfig = {\n *\t\t\tstyles: {\n *\t\t\t\toptions: [ 'block', 'side' ]\n *\t\t\t}\n *\t\t};\n *\n * * If only the {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} plugin is loaded,\n * the following buttons (options) and groups will available for the toolbar configuration.\n * These options will be registered as the buttons with the \"imageStyle:\" prefixes.\n *\n *\t\tconst imageDefaultConfig = {\n *\t\t\tstyles: {\n *\t\t\t\toptions: [ 'inline', 'alignLeft', 'alignRight' ]\n *\t\t\t}\n *\t\t};\n *\n * Read more about the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options}.\n *\n * # **Custom configuration**\n *\n * The image styles configuration can be customized in several ways:\n *\n * * Any of the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options}\n * can be loaded by the reference to its name as follows:\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\timage: {\n *\t\t\t\t\tstyles: {\n *\t\t\t\t\t\toptions: [ 'alignLeft', 'alignRight' ]\n *\t\t\t\t\t}\n *\t\t\t\t}\n *\t\t\t} );\n *\n * * Each of the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default image style options} can be customized,\n * e.g. to change the `icon`, `title` or CSS `className` of the style. The feature also provides several\n * {@link module:image/imagestyle/utils~DEFAULT_ICONS default icons} to choose from.\n *\n *\t\timport customIcon from 'custom-icon.svg';\n *\n *\t\t// ...\n *\n *\t\tClassicEditor.create( editorElement, { image:\n *\t\t\tstyles: {\n *\t\t\t\toptions: {\n *\t\t\t\t\t// This will only customize the icon of the \"block\" style.\n *\t\t\t\t\t// Note: 'right' is one of default icons provided by the feature.\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'block',\n *\t\t\t\t\t\ticon: 'right'\n *\t\t\t\t\t},\n *\n *\t\t\t\t\t// This will customize the icon, title and CSS class of the default \"side\" style.\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'side',\n *\t\t\t\t\t\ticon: customIcon,\n *\t\t\t\t\t\ttitle: 'My side style',\n *\t\t\t\t\t\tclassName: 'custom-side-image'\n *\t\t\t\t\t}\n *\t\t\t\t}\n *\t\t\t}\n *\t\t} );\n *\n * * If none of the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default image style options}\n * works for the integration, it is possible to define independent custom styles, too.\n *\n * See the documentation about the image style {@link module:image/imagestyle~ImageStyleOptionDefinition options}\n * to define the custom image style configuration properly.\n *\n *\t\timport redIcon from 'red-icon.svg';\n *\t\timport blueIcon from 'blue-icon.svg';\n *\n *\t\t// ...\n *\n *\t\tClassicEditor.create( editorElement, { image:\n *\t\t\tstyles: {\n *\t\t\t\t// A list of completely custom styling options.\n *\t\t\t\toptions: [\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'regular',\n *\t\t\t\t\t\tmodelElements: [ 'imageBlock', 'imageInline' ],\n *\t\t\t\t\t\ttitle: 'Regular image',\n *\t\t\t\t\t\ticon: 'full',\n *\t\t\t\t\t\tisDefault: true\n *\t\t\t\t\t}, {\n *\t\t\t\t\t\tname: 'blue',\n *\t\t\t\t\t\tmodelElements: [ 'imageInline' ],\n *\t\t\t\t\t\ttitle: 'Blue image',\n *\t\t\t\t\t\ticon: blueIcon,\n *\t\t\t\t\t\tclassName: 'image-blue'\n *\t\t\t\t\t}, {\n *\t\t\t\t\t\tname: 'red',\n *\t\t\t\t\t\tmodelElements: [ 'imageBlock' ],\n *\t\t\t\t\t\ttitle: 'Red image',\n *\t\t\t\t\t\ticon: redIcon,\n *\t\t\t\t\t\tclassName: 'image-red'\n *\t\t\t\t\t}\n *\t\t\t\t]\n *\t\t\t}\n *\t\t} );\n *\n * @member {module:image/imagestyle~ImageStyleConfig} module:image/image~ImageConfig#styles\n */\n\n/**\n * The image styling option definition descriptor.\n *\n * This definition should be implemented in the `Image` plugin {@link module:image/image~ImageConfig#styles configuration} for:\n *\n * * customizing one of the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options} by providing the proper name\n * of the default style and the properties that should be overridden,\n * * or defining a completely custom styling option by providing a custom name and implementing the following properties.\n *\n *\t\timport fullSizeIcon from 'path/to/icon.svg';\n *\n *\t\tconst imageStyleOptionDefinition = {\n *\t\t\tname: 'fullSize',\n *\t\t\ticon: fullSizeIcon,\n *\t\t\ttitle: 'Full size image',\n *\t\t\tclassName: 'image-full-size',\n *\t\t\tmodelElements: [ 'imageBlock', 'imageInline' ]\n *\t\t}\n *\n * The styling option will be registered as the button under the name `'imageStyle:{name}'` in the\n * {@link module:ui/componentfactory~ComponentFactory UI components factory} (this functionality is provided by the\n * {@link module:image/imagestyle/imagestyleui~ImageStyleUI} plugin).\n *\n * @property {String} name The unique name of the styling option. It will be used to:\n *\n * * refer to one of the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options} or define the custom style,\n * * store the chosen style in the model by setting the `imageStyle` attribute of the model image element,\n * * as a value of the {@link module:image/imagestyle/imagestylecommand~ImageStyleCommand#execute `imageStyle` command},\n * * when registering a button for the style in the following manner: (`'imageStyle:{name}'`).\n *\n * @property {Boolean} [isDefault] When set, the style will be used as the default one for the model elements\n * listed in the `modelElements` property. A default style does not apply any CSS class to the view element.\n *\n * If this property is not defined, its value is inherited\n * from the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options} addressed in the name property.\n *\n * @property {String} icon One of the following to be used when creating the styles's button:\n *\n * * an SVG icon source (as an XML string),\n * * one of the keys in {@link module:image/imagestyle/utils~DEFAULT_ICONS} to use one of default icons provided by the plugin.\n *\n * If this property is not defined, its value is inherited\n * from the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options} addressed in the name property.\n *\n * @property {String} title The styles's title. Setting `title` to one of\n * {@link module:image/imagestyle/imagestyleui~ImageStyleUI#localizedDefaultStylesTitles}\n * will automatically translate it to the language of the editor.\n *\n * If this property is not defined, its value is inherited\n * from the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options} addressed in the name property.\n *\n * @property {String} [className] The CSS class used to represent the style in the view.\n * It should be used only for the non-default styles.\n *\n * If this property is not defined, its value is inherited\n * from the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options} addressed in the name property.\n *\n * @property {Array.<String>} modelElements The list of the names of the model elements that are supported by the style.\n * The possible values are:\n * * `[ 'imageBlock' ]` if the style can be applied to the image type introduced by the\n * {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugin,\n * * `[ 'imageInline' ]` if the style can be applied to the image type introduced by the\n * {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} plugin,\n * * `[ 'imageInline', 'imageBlock' ]` if the style can be applied to both image types introduced by the plugins mentioned above.\n *\n * This property determines which model element names work with the style. If the model element name of the currently selected\n * image is different, upon executing the\n * {@link module:image/imagestyle/imagestylecommand~ImageStyleCommand#execute `imageStyle`} command the image type (model element name)\n * will automatically change.\n *\n * If this property is not defined, its value is inherited\n * from the {@link module:image/imagestyle/utils~DEFAULT_OPTIONS default styling options} addressed in the name property.\n *\n * @typedef {Object} module:image/imagestyle~ImageStyleOptionDefinition\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetoolbar\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { WidgetToolbarRepository } from 'ckeditor5/src/widget';\nimport ImageUtils from './imageutils';\nimport { isObject } from 'lodash-es';\n\n/**\n * The image toolbar plugin. It creates and manages the image toolbar (the toolbar displayed when an image is selected).\n *\n * For an overview, check the {@glink features/images/images-overview#image-contextual-toolbar image contextual toolbar} documentation.\n *\n * Instances of toolbar components (e.g. buttons) are created using the editor's\n * {@link module:ui/componentfactory~ComponentFactory component factory}\n * based on the {@link module:image/image~ImageConfig#toolbar `image.toolbar` configuration option}.\n *\n * The toolbar uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageToolbar extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ WidgetToolbarRepository, ImageUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst widgetToolbarRepository = editor.plugins.get( WidgetToolbarRepository );\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\twidgetToolbarRepository.register( 'image', {\n\t\t\tariaLabel: t( 'Image toolbar' ),\n\t\t\titems: normalizeDeclarativeConfig( editor.config.get( 'image.toolbar' ) || [] ),\n\t\t\tgetRelatedElement: selection => imageUtils.getClosestSelectedImageWidget( selection )\n\t\t} );\n\t}\n}\n\n/**\n * Items to be placed in the image toolbar.\n * This option is used by the {@link module:image/imagetoolbar~ImageToolbar} feature.\n *\n * Assuming that you use the following features:\n *\n * * {@link module:image/imagestyle~ImageStyle} (with a default configuration),\n * * {@link module:image/imagetextalternative~ImageTextAlternative},\n * * {@link module:image/imagecaption~ImageCaption},\n *\n * the following toolbar items will be available in {@link module:ui/componentfactory~ComponentFactory}:\n * * `'imageTextAlternative'`,\n * * `'toggleImageCaption'`,\n * * {@link module:image/image~ImageConfig#styles buttons provided by the `ImageStyle` plugin},\n * * {@link module:image/imagestyle/utils~DEFAULT_DROPDOWN_DEFINITIONS drop-downs provided by the `ImageStyle` plugin},\n *\n * so you can configure the toolbar like this:\n *\n *\t\tconst imageConfig = {\n *\t\t\ttoolbar: [\n *\t \t\t\t'imageStyle:inline', 'imageStyle:wrapText', 'imageStyle:breakText', '|',\n *\t\t\t\t'toggleImageCaption', 'imageTextAlternative'\n *\t\t\t]\n *\t\t};\n *\n * Besides that, the `ImageStyle` plugin allows to define a\n * {@link module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition custom drop-down} while configuring the toolbar.\n *\n * The same items can also be used in the {@link module:core/editor/editorconfig~EditorConfig#toolbar main editor toolbar}.\n *\n * Read more about configuring toolbar in {@link module:core/editor/editorconfig~EditorConfig#toolbar}.\n *\n * @member {Array.<String>} module:image/image~ImageConfig#toolbar\n */\n\n// Convert the dropdown definitions to their keys registered in the ComponentFactory.\n// The registration precess should be handled by the plugin which handles the UI of a particular feature.\n//\n// @param {Array.<String|module:image/imagestyle/imagestyleui~ImageStyleDropdownDefinition>} config\n//\n// @returns {Array.<String>}\nfunction normalizeDeclarativeConfig( config ) {\n\treturn config.map( item => isObject( item ) ? item.name : item );\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageUploadUI from './imageupload/imageuploadui';\nimport ImageUploadProgress from './imageupload/imageuploadprogress';\nimport ImageUploadEditing from './imageupload/imageuploadediting';\n\n/**\n * The image upload plugin.\n *\n * For a detailed overview, check the {@glink features/images/image-upload/image-upload image upload feature} documentation.\n *\n * This plugin does not do anything directly, but it loads a set of specific plugins to enable image uploading:\n *\n * * {@link module:image/imageupload/imageuploadediting~ImageUploadEditing},\n * * {@link module:image/imageupload/imageuploadui~ImageUploadUI},\n * * {@link module:image/imageupload/imageuploadprogress~ImageUploadProgress}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageUpload extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageUpload';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageUploadEditing, ImageUploadUI, ImageUploadProgress ];\n\t}\n}\n\n/**\n * The image upload configuration.\n *\n * @member {module:image/imageupload~ImageUploadConfig} module:image/image~ImageConfig#upload\n */\n\n/**\n * The configuration of the image upload feature. Used by the image upload feature in the `@ckeditor/ckeditor5-image` package.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n * \t\t\t\timage: {\n * \t\t\t\t\tupload:  ... // Image upload feature options.\n * \t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface module:image/imageupload~ImageUploadConfig\n */\n\n/**\n * The list of accepted image types.\n *\n * The accepted types of images can be customized to allow only certain types of images:\n *\n *\t\t// Allow only JPEG and PNG images:\n *\t\tconst imageUploadConfig = {\n *\t\t\ttypes: [ 'png', 'jpeg' ]\n *\t\t};\n *\n * The type string should match [one of the sub-types](https://www.iana.org/assignments/media-types/media-types.xhtml#image)\n * of the image MIME type. For example, for the `image/jpeg` MIME type, add `'jpeg'` to your image upload configuration.\n *\n * **Note:** This setting only restricts some image types to be selected and uploaded through the CKEditor UI and commands. Image type\n * recognition and filtering should also be implemented on the server which accepts image uploads.\n *\n * @member {Array.<String>} module:image/imageupload~ImageUploadConfig#types\n * @default [ 'jpeg', 'png', 'gif', 'bmp', 'webp', 'tiff' ]\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageResizeButtons from './imageresize/imageresizebuttons';\nimport ImageResizeEditing from './imageresize/imageresizeediting';\nimport ImageResizeHandles from './imageresize/imageresizehandles';\n\nimport '../theme/imageresize.css';\n\n/**\n * The image resize plugin.\n *\n * It adds a possibility to resize each image using handles.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ImageResize extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageResizeEditing, ImageResizeHandles, ImageResizeButtons ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ImageResize';\n\t}\n}\n\n/**\n * The available options are `'px'` or `'%'`.\n *\n * Determines the size unit applied to the resized image.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\timage: {\n *\t\t\t\t\tresizeUnit: 'px'\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n *\n * This option is used by the {@link module:image/imageresize~ImageResize} feature.\n *\n * @default '%'\n * @member {String} module:image/image~ImageConfig#resizeUnit\n */\n\n/**\n * The image resize options.\n *\n * Each option should have at least these two properties:\n *\n * * name: The name of the UI component registered in the global\n * {@link module:core/editor/editorui~EditorUI#componentFactory component factory} of the editor,\n * representing the button a user can click to change the size of an image,\n * * value: An actual image width applied when a user clicks the mentioned button\n * ({@link module:image/imageresize/resizeimagecommand~ResizeImageCommand} gets executed).\n * The value property is combined with the {@link module:image/image~ImageConfig#resizeUnit `config.image.resizeUnit`} (`%` by default).\n * For instance: `value: '50'` and `resizeUnit: '%'` will render as `'50%'` in the UI.\n *\n * **Resetting the image size**\n *\n * If you want to set an option that will reset image to its original size, you need to pass a `null` value\n * to one of the options. The `:original` token is not mandatory, you can call it anything you wish, but it must reflect\n * in the standalone buttons configuration for the image toolbar.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\timage: {\n *\t\t\t\t\tresizeUnit: \"%\",\n *\t\t\t\t\tresizeOptions: [ {\n *\t\t\t\t\t\tname: 'resizeImage:original',\n *\t\t\t\t\t\tvalue: null\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:50',\n *\t\t\t\t\t\tvalue: '50'\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:75',\n *\t\t\t\t\t\tvalue: '75'\n *\t\t\t\t\t} ]\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * **Resizing images using a dropdown**\n *\n * With resize options defined, you can decide whether you want to display them as a dropdown or as standalone buttons.\n * For the dropdown, you need to pass only the `resizeImage` token to the\n{@link module:image/image~ImageConfig#toolbar `config.image.toolbar`}. The dropdown contains all defined options by default:\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\timage: {\n *\t\t\t\t\tresizeUnit: \"%\",\n *\t\t\t\t\tresizeOptions: [ {\n *\t\t\t\t\t\tname: 'resizeImage:original',\n *\t\t\t\t\t\tvalue: null\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:50',\n *\t\t\t\t\t\tvalue: '50'\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:75',\n *\t\t\t\t\t\tvalue: '75'\n *\t\t\t\t\t} ],\n *\t\t\t\t\ttoolbar: [ 'resizeImage', ... ],\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * **Resizing images using individual buttons**\n *\n * If you want to have separate buttons for {@link module:image/imageresize/imageresizebuttons~ImageResizeOption each option},\n * pass their names to the {@link module:image/image~ImageConfig#toolbar `config.image.toolbar`} instead. Please keep in mind\n * that this time **you must define the additional\n * {@link module:image/imageresize/imageresizebuttons~ImageResizeOption `icon` property}**:\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\timage: {\n *\t\t\t\t\tresizeUnit: \"%\",\n *\t\t\t\t\tresizeOptions: [ {\n *\t\t\t\t\t\tname: 'resizeImage:original',\n *\t\t\t\t\t\tvalue: null,\n *\t\t\t\t\t\ticon: 'original'\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:25',\n *\t\t\t\t\t\tvalue: '25',\n *\t\t\t\t\t\ticon: 'small'\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:50',\n *\t\t\t\t\t\tvalue: '50',\n *\t\t\t\t\t\ticon: 'medium'\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:75',\n *\t\t\t\t\t\tvalue: '75',\n *\t\t\t\t\t\ticon: 'large'\n *\t\t\t\t\t} ],\n *\t\t\t\t\ttoolbar: [ 'resizeImage:25', 'resizeImage:50', 'resizeImage:75', 'resizeImage:original', ... ],\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * **Customizing resize button labels**\n *\n * You can set your own label for each resize button. To do that, add the `label` property like in the example below.\n *\n * * When using the **dropdown**, the labels are displayed on the list of all options when you open the dropdown.\n * * When using **standalone buttons**, the labels will are displayed as tooltips when a user hovers over the button.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\timage: {\n *\t\t\t\t\tresizeUnit: \"%\",\n *\t\t\t\t\tresizeOptions: [ {\n *\t\t\t\t\t\tname: 'resizeImage:original',\n *\t\t\t\t\t\tvalue: null,\n *\t\t\t\t\t\tlabel: 'Original size'\n *\t\t\t\t\t\t// Note: add the \"icon\" property if you're configuring a standalone button.\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:50',\n *\t\t\t\t\t\tvalue: '50',\n *\t\t\t\t\t\tlabel: 'Medium size'\n *\t\t\t\t\t\t// Note: add the \"icon\" property if you're configuring a standalone button.\n *\t\t\t\t\t},\n *\t\t\t\t\t{\n *\t\t\t\t\t\tname: 'resizeImage:75',\n *\t\t\t\t\t\tvalue: '75',\n *\t\t\t\t\t\tlabel: 'Large size'\n *\t\t\t\t\t\t// Note: add the \"icon\" property if you're configuring a standalone button.\n *\t\t\t\t\t} ]\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * **Default value**\n *\n * The following configuration is used by default:\n *\n *\t\tresizeOptions = [\n *\t\t\t{\n *\t\t\t\tname: 'resizeImage:original',\n *\t\t\t\tvalue: null,\n *\t\t\t\ticon: 'original'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tname: 'resizeImage:25',\n *\t\t\t\tvalue: '25',\n *\t\t\t\ticon: 'small'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tname: 'resizeImage:50',\n *\t\t\t\tvalue: '50',\n *\t\t\t\ticon: 'medium'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tname: 'resizeImage:75',\n *\t\t\t\tvalue: '75',\n *\t\t\t\ticon: 'large'\n *\t\t\t}\n *\t\t];\n *\n * @member {Array.<module:image/imageresize/imageresizebuttons~ImageResizeOption>} module:image/image~ImageConfig#resizeOptions\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/link\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport LinkEditing from './linkediting';\nimport LinkUI from './linkui';\nimport AutoLink from './autolink';\n\n/**\n * The link plugin.\n *\n * This is a \"glue\" plugin that loads the {@link module:link/linkediting~LinkEditing link editing feature}\n * and {@link module:link/linkui~LinkUI link UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Link extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ LinkEditing, LinkUI, AutoLink ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Link';\n\t}\n}\n\n/**\n * The configuration of the {@link module:link/link~Link} feature.\n *\n * Read more in {@link module:link/link~LinkConfig}.\n *\n * @member {module:link/link~LinkConfig} module:core/editor/editorconfig~EditorConfig#link\n */\n\n/**\n * The configuration of the {@link module:link/link~Link link feature}.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n * \t\t\t\tlink:  ... // Link feature configuration.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n * @interface LinkConfig\n */\n\n/**\n * When set, the editor will add the given protocol to the link when the user creates a link without one.\n * For example, when the user is creating a link and types `ckeditor.com` in the link form input, during link submission\n * the editor will automatically add the `http://` protocol, so the link will look as follows: `http://ckeditor.com`.\n *\n * The feature also provides email address auto-detection. When you submit `hello@example.com`,\n * the plugin will automatically change it to `mailto:hello@example.com`.\n *\n * \t\tClassicEditor\n *\t\t\t.create( editorElement, {\n * \t\t\t\tlink: {\n * \t\t\t\t\tdefaultProtocol: 'http://'\n * \t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * **NOTE:** If no configuration is provided, the editor will not auto-fix the links.\n *\n * @member {String} module:link/link~LinkConfig#defaultProtocol\n */\n\n/**\n * When set to `true`, the `target=\"blank\"` and `rel=\"noopener noreferrer\"` attributes are automatically added to all external links\n * in the editor. \"External links\" are all links in the editor content starting with `http`, `https`, or `//`.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tlink: {\n *\t\t\t\t\taddTargetToExternalLinks: true\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * Internally, this option activates a predefined {@link module:link/link~LinkConfig#decorators automatic link decorator}\n * that extends all external links with the `target` and `rel` attributes.\n *\n * **Note**: To control the `target` and `rel` attributes of specific links in the edited content, a dedicated\n * {@link module:link/link~LinkDecoratorManualDefinition manual} decorator must be defined in the\n * {@link module:link/link~LinkConfig#decorators `config.link.decorators`} array. In such scenario,\n * the `config.link.addTargetToExternalLinks` option should remain `undefined` or `false` to not interfere with the manual decorator.\n *\n * It is possible to add other {@link module:link/link~LinkDecoratorAutomaticDefinition automatic}\n * or {@link module:link/link~LinkDecoratorManualDefinition manual} link decorators when this option is active.\n *\n * More information about decorators can be found in the {@link module:link/link~LinkConfig#decorators decorators configuration}\n * reference.\n *\n * @default false\n * @member {Boolean} module:link/link~LinkConfig#addTargetToExternalLinks\n */\n\n/**\n * Decorators provide an easy way to configure and manage additional link attributes in the editor content. There are\n * two types of link decorators:\n *\n * * {@link module:link/link~LinkDecoratorAutomaticDefinition Automatic} &ndash; They match links against pre–defined rules and\n * manage their attributes based on the results.\n * * {@link module:link/link~LinkDecoratorManualDefinition Manual} &ndash; They allow users to control link attributes individually,\n *  using the editor UI.\n *\n * Link decorators are defined as objects with key-value pairs, where the key is the name provided for a given decorator and the\n * value is the decorator definition.\n *\n * The name of the decorator also corresponds to the {@glink framework/guides/architecture/editing-engine#text-attributes text attribute}\n * in the model. For instance, the `isExternal` decorator below is represented as a `linkIsExternal` attribute in the model.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tlink: {\n *\t\t\t\t\tdecorators: {\n *\t\t\t\t\t\tisExternal: {\n *\t\t\t\t\t\t\tmode: 'automatic',\n *\t\t\t\t\t\t\tcallback: url => url.startsWith( 'http://' ),\n *\t\t\t\t\t\t\tattributes: {\n *\t\t\t\t\t\t\t\ttarget: '_blank',\n *\t\t\t\t\t\t\t\trel: 'noopener noreferrer'\n *\t\t\t\t\t\t\t}\n *\t\t\t\t\t\t},\n *\t\t\t\t\t\tisDownloadable: {\n *\t\t\t\t\t\t\tmode: 'manual',\n *\t\t\t\t\t\t\tlabel: 'Downloadable',\n *\t\t\t\t\t\t\tattributes: {\n *\t\t\t\t\t\t\t\tdownload: 'file.png',\n *\t\t\t\t\t\t\t}\n *\t\t\t\t\t\t},\n *\t\t\t\t\t\t// ...\n *\t\t\t\t\t}\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * To learn more about the configuration syntax, check out the {@link module:link/link~LinkDecoratorAutomaticDefinition automatic}\n * and {@link module:link/link~LinkDecoratorManualDefinition manual} decorator option reference.\n *\n * **Warning:** Currently, link decorators work independently of one another and no conflict resolution mechanism exists.\n * For example, configuring the `target` attribute using both an automatic and a manual decorator at the same time could end up with\n * quirky results. The same applies if multiple manual or automatic decorators were defined for the same attribute.\n *\n * **Note**: Since the `target` attribute management for external links is a common use case, there is a predefined automatic decorator\n * dedicated for that purpose which can be enabled by turning a single option on. Check out the\n * {@link module:link/link~LinkConfig#addTargetToExternalLinks `config.link.addTargetToExternalLinks`}\n * configuration description to learn more.\n *\n * See also the {@glink features/link#custom-link-attributes-decorators link feature guide} for more information.\n *\n * @member {Object.<String, module:link/link~LinkDecoratorDefinition>} module:link/link~LinkConfig#decorators\n */\n\n/**\n * A link decorator definition. Two types implement this defition:\n *\n * * {@link module:link/link~LinkDecoratorManualDefinition}\n * * {@link module:link/link~LinkDecoratorAutomaticDefinition}\n *\n * Refer to their document for more information about available options or to the\n * {@glink features/link#custom-link-attributes-decorators link feature guide} for general information.\n *\n * @interface LinkDecoratorDefinition\n */\n\n/**\n * Link decorator type.\n *\n * Check out the {@glink features/link#custom-link-attributes-decorators link feature guide} for more information.\n *\n * @member {'manual'|'automatic'} module:link/link~LinkDecoratorDefinition#mode\n */\n\n/**\n * Describes an automatic {@link module:link/link~LinkConfig#decorators link decorator}. This decorator type matches\n * all links in the editor content against a function that decides whether the link should receive a pre–defined set of attributes.\n *\n * It takes an object with key-value pairs of attributes and a callback function that must return a Boolean value based on the link's\n * `href` (URL). When the callback returns `true`, attributes are applied to the link.\n *\n * For example, to add the `target=\"_blank\"` attribute to all links in the editor starting with `http://`, the\n * configuration could look like this:\n *\n *\t\t{\n *\t\t\tmode: 'automatic',\n *\t\t\tcallback: url => url.startsWith( 'http://' ),\n *\t\t\tattributes: {\n *\t\t\t\ttarget: '_blank'\n *\t\t\t}\n *\t\t}\n *\n * **Note**: Since the `target` attribute management for external links is a common use case, there is a predefined automatic decorator\n * dedicated for that purpose that can be enabled by turning a single option on. Check out the\n * {@link module:link/link~LinkConfig#addTargetToExternalLinks `config.link.addTargetToExternalLinks`}\n * configuration description to learn more.\n *\n * @typedef {Object} module:link/link~LinkDecoratorAutomaticDefinition\n * @property {'automatic'} mode Link decorator type. It is `'automatic'` for all automatic decorators.\n * @property {Function} callback Takes a `url` as a parameter and returns `true` if the `attributes` should be applied to the link.\n * @property {Object} [attributes] Key-value pairs used as link attributes added to the output during the\n * {@glink framework/guides/architecture/editing-engine#conversion downcasting}.\n * Attributes should follow the {@link module:engine/view/elementdefinition~ElementDefinition} syntax.\n * @property {Object} [styles] Key-value pairs used as link styles added to the output during the\n * {@glink framework/guides/architecture/editing-engine#conversion downcasting}.\n * Styles should follow the {@link module:engine/view/elementdefinition~ElementDefinition} syntax.\n * @property {String|Array.<String>} [classes] Class names used as link classes added to the output during the\n * {@glink framework/guides/architecture/editing-engine#conversion downcasting}.\n * Classes should follow the {@link module:engine/view/elementdefinition~ElementDefinition} syntax.\n */\n\n/**\n * Describes a manual {@link module:link/link~LinkConfig#decorators link decorator}. This decorator type is represented in\n * the link feature's {@link module:link/linkui user interface} as a switch that the user can use to control the presence\n * of a predefined set of attributes.\n *\n * For instance, to allow the users to manually control the presence of the `target=\"_blank\"` and\n * `rel=\"noopener noreferrer\"` attributes on specific links, the decorator could look as follows:\n *\n *\t\t{\n *\t\t\tmode: 'manual',\n *\t\t\tlabel: 'Open in a new tab',\n *\t\t\tdefaultValue: true,\n *\t\t\tattributes: {\n *\t\t\t\ttarget: '_blank',\n *\t\t\t\trel: 'noopener noreferrer'\n *\t\t\t}\n *\t\t}\n *\n * @typedef {Object} module:link/link~LinkDecoratorManualDefinition\n * @property {'manual'} mode Link decorator type. It is `'manual'` for all manual decorators.\n * @property {String} label The label of the UI button that the user can use to control the presence of link attributes.\n * @property {Object} [attributes] Key-value pairs used as link attributes added to the output during the\n * {@glink framework/guides/architecture/editing-engine#conversion downcasting}.\n * Attributes should follow the {@link module:engine/view/elementdefinition~ElementDefinition} syntax.\n * @property {Object} [styles] Key-value pairs used as link styles added to the output during the\n * {@glink framework/guides/architecture/editing-engine#conversion downcasting}.\n * Styles should follow the {@link module:engine/view/elementdefinition~ElementDefinition} syntax.\n * @property {String|Array.<String>} [classes] Class names used as link classes added to the output during the\n * {@glink framework/guides/architecture/editing-engine#conversion downcasting}.\n * Classes should follow the {@link module:engine/view/elementdefinition~ElementDefinition} syntax.\n * @property {Boolean} [defaultValue] Controls whether the decorator is \"on\" by default.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list\n */\n\nimport ListEditing from './list/listediting';\nimport ListUI from './list/listui';\n\nimport { Plugin } from 'ckeditor5/src/core';\n\n/**\n * The list feature.\n *\n * This is a \"glue\" plugin that loads the {@link module:list/list/listediting~ListEditing list editing feature}\n * and {@link module:list/list/listui~ListUI list UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class List extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ListEditing, ListUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'List';\n\t}\n}\n\n/**\n * The configuration of the {@link module:list/list~List list} feature\n * and the {@link module:list/documentlist~DocumentList document list} feature.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tlist:  ... // The list feature configuration.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface ListConfig\n */\n\n/**\n * The configuration of the {@link module:list/list~List} feature and the {@link module:list/documentlist~DocumentList} feature.\n *\n * Read more in {@link module:list/list~ListConfig}.\n *\n * @member {module:module:list/list~ListConfig} module:core/editor/editorconfig~EditorConfig#list\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ListPropertiesEditing from './listproperties/listpropertiesediting';\nimport ListPropertiesUI from './listproperties/listpropertiesui';\n\n/**\n * The list properties feature.\n *\n * This is a \"glue\" plugin that loads the {@link module:list/listproperties/listpropertiesediting~ListPropertiesEditing list properties\n * editing feature} and the {@link module:list/listproperties/listpropertiesui~ListPropertiesUI list properties UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class ListProperties extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ListPropertiesEditing, ListPropertiesUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'ListProperties';\n\t}\n}\n\n/**\n * The configuration of the {@link module:list/listproperties~ListProperties list properties} feature and the\n * {@link module:list/documentlistproperties~DocumentListProperties document list properties} feature.\n *\n * This configuration controls the individual list properties. For instance, it enables or disables specific editor commands\n * operating on lists ({@link module:list/listproperties/liststylecommand~ListStyleCommand `'listStyle'`},\n * {@link module:list/listproperties/liststartcommand~ListStartCommand `'listStart'`},\n * {@link module:list/listproperties/listreversedcommand~ListReversedCommand `'listReversed'`}, or on the document lists\n * {@link module:list/documentlistproperties/documentliststylecommand~DocumentListStyleCommand `'listStyle'`},\n * {@link module:list/documentlistproperties/documentliststartcommand~DocumentListStartCommand `'listStart'`},\n * {@link module:list/documentlistproperties/documentlistreversedcommand~DocumentListReversedCommand `'listReversed'`}), the look of the UI\n * (`'numberedList'` and `'bulletedList'` dropdowns), and the editor data pipeline (allowed HTML attributes).\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tlist: {\n *\t\t\t\t\tproperties: {\n *\t\t\t\t\t\tstyles: true,\n *\t\t\t\t\t\tstartIndex: true,\n *\t\t\t\t\t\treversed: true\n *\t\t\t\t\t}\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * @interface ListPropertiesConfig\n */\n\n/**\n * When set, the list style feature will be enabled. It allows changing the `list-style-type` style or the `type` HTML attribute of a list.\n *\n * **Note**: Styling using the `type` HTML attribute is only available in\n * {@link module:list/documentlistproperties~DocumentListProperties document list properties}\n * ({@link module:list/listproperties~ListPropertiesStyleConfig learn more}).\n *\n * @default true\n * @member {Boolean|module:list/listproperties~ListPropertiesStyleConfig} module:list/listproperties~ListPropertiesConfig#styles\n */\n\n/**\n * When set, the list start index feature will be enabled. It allows changing the `start` HTML attribute of the numbered lists. As a\n * result, it will be possible to specify the start value of the first item in an ordered list.\n *\n * **Note**: This configuration does not affect bulleted and to-do lists.\n *\n * @default false\n * @member {Boolean} module:list/listproperties~ListPropertiesConfig#startIndex\n */\n\n/**\n * When set, the reversed list feature will be enabled. It allows changing the `reversed` HTML attribute of the numbered lists. As a\n * result, it will be possible to make the list order descending instead of ascending.\n *\n * **Note**: This configuration does not affect bulleted and to-do lists.\n *\n * @default false\n * @member {Boolean} module:list/listproperties~ListPropertiesConfig#reversed\n */\n\n/**\n * The configuration of the {@link module:list/listproperties~ListProperties} feature and the\n * {@link module:list/documentlistproperties~DocumentListProperties document list properties} feature.\n *\n * Read more in {@link module:list/listproperties~ListPropertiesConfig}.\n *\n * @member {module:list/listproperties~ListPropertiesConfig} module:list/list~ListConfig#properties\n */\n\n/**\n * @interface ListPropertiesStyleConfig\n */\n\n/**\n * When set `true`, the list style feature will use the `type` attribute of `<ul>` and `<ol>` elements instead of the `list-style-type`\n * style.\n *\n *\t\t{\n *\t\t\tlist: {\n *\t\t\t\tproperties: {\n *\t\t\t\t\tstyles: {\n *\t\t\t\t\t\tuseAttribute: true\n *\t\t\t\t\t},\n *\n *\t\t\t\t\t// ...\n *\t\t\t\t}\n *\t\t\t},\n *\n *\t\t\t// ...\n *\t\t}\n *\n * **Note**: Due to limitations of HTML, the \"Decimal with leading zero\" style is impossible to set using the `type` attribute.\n *\n * **Note**: This configuration works only with {@link module:list/documentlistproperties~DocumentListProperties document list properties}.\n *\n * @default false\n * @member {Boolean} module:list/listproperties~ListPropertiesStyleConfig#useAttribute\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist\n */\n\nimport TodoListEditing from './todolist/todolistediting';\nimport TodoListUI from './todolist/todolistui';\nimport { Plugin } from 'ckeditor5/src/core';\nimport '../theme/todolist.css';\n\n/**\n * The to-do list feature.\n *\n * This is a \"glue\" plugin that loads the {@link module:list/todolist/todolistediting~TodoListEditing to-do list editing feature}\n * and the {@link module:list/todolist/todolistui~TodoListUI to-do list UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TodoList extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TodoListEditing, TodoListUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TodoList';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/pastefromoffice\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ClipboardPipeline } from 'ckeditor5/src/clipboard';\n\nimport GoogleDocsNormalizer from './normalizers/googledocsnormalizer';\nimport MSWordNormalizer from './normalizers/mswordnormalizer';\n\nimport { parseHtml } from './filters/parse';\n\n/**\n * The Paste from Office plugin.\n *\n * This plugin handles content pasted from Office apps and transforms it (if necessary)\n * to a valid structure which can then be understood by the editor features.\n *\n * Transformation is made by a set of predefined {@link module:paste-from-office/normalizer~Normalizer normalizers}.\n * This plugin includes following normalizers:\n *   * {@link module:paste-from-office/normalizers/mswordnormalizer~MSWordNormalizer Microsoft Word normalizer}\n *   * {@link module:paste-from-office/normalizers/googledocsnormalizer~GoogleDocsNormalizer Google Docs normalizer}\n *\n * For more information about this feature check the {@glink api/paste-from-office package page}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class PasteFromOffice extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'PasteFromOffice';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ClipboardPipeline ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\t\tconst normalizers = [];\n\n\t\tnormalizers.push( new MSWordNormalizer( viewDocument ) );\n\t\tnormalizers.push( new GoogleDocsNormalizer( viewDocument ) );\n\n\t\teditor.plugins.get( 'ClipboardPipeline' ).on(\n\t\t\t'inputTransformation',\n\t\t\t( evt, data ) => {\n\t\t\t\tif ( data._isTransformedWithPasteFromOffice ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst codeBlock = editor.model.document.selection.getFirstPosition().parent;\n\n\t\t\t\tif ( codeBlock.is( 'element', 'codeBlock' ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst htmlString = data.dataTransfer.getData( 'text/html' );\n\t\t\t\tconst activeNormalizer = normalizers.find( normalizer => normalizer.isActive( htmlString ) );\n\n\t\t\t\tif ( activeNormalizer ) {\n\t\t\t\t\tdata._parsedData = parseHtml( htmlString, viewDocument.stylesProcessor );\n\n\t\t\t\t\tactiveNormalizer.execute( data );\n\n\t\t\t\t\tdata._isTransformedWithPasteFromOffice = true;\n\t\t\t\t}\n\t\t\t},\n\t\t\t{ priority: 'high' }\n\t\t);\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/pictureediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport ImageEditing from './image/imageediting';\nimport ImageUtils from './imageutils';\nimport {\n\tdowncastSourcesAttribute,\n\tupcastPicture\n} from './image/converters';\n\n/**\n * This plugin enables the [`<picture>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/picture) element support in the editor.\n *\n * * It enables the `sources` model attribute on `imageBlock` and `imageInline` model elements\n * (brought by {@link module:image/imageblock~ImageBlock} and {@link module:image/imageinline~ImageInline}, respectively).\n * * It translates the `sources` model element to the view (also: data) structure that may look as follows:\n *\n *\t\t<p>Inline image using picture:\n *\t\t\t<picture>\n *\t\t\t\t<source media=\"(min-width: 800px)\" srcset=\"image-large.webp\" type=\"image/webp\">\n *\t\t\t\t<source media=\"(max-width: 800px)\" srcset=\"image-small.webp\" type=\"image/webp\">\n *\t\t\t\t<!-- Other sources as specified in the \"sources\" model attribute... -->\n *\t\t\t\t<img src=\"image.png\" alt=\"An image using picture\" />\n *\t\t\t</picture>\n *\t\t</p>\n *\n *\t\t<p>Block image using picture:</p>\n *\t\t<figure class=\"image\">\n *\t\t\t<picture>\n *\t\t\t\t<source media=\"(min-width: 800px)\" srcset=\"image-large.webp\" type=\"image/webp\">\n *\t\t\t\t<source media=\"(max-width: 800px)\" srcset=\"image-small.webp\" type=\"image/webp\">\n *\t\t\t\t<!-- Other sources as specified in the \"sources\" model attribute... -->\n *\t\t\t\t<img src=\"image.png\" alt=\"An image using picture\" />\n *\t\t\t</picture>\n *\t\t\t<figcaption>Caption of the image</figcaption>\n *\t\t</figure>\n *\n *\t**Note:** The value of the `sources` {@glink framework/guides/architecture/editing-engine#changing-the-model model attribute}\n * \tin both examples equals:\n *\n *\t\t[\n *\t\t\t{\n *\t\t\t\tmedia: '(min-width: 800px)',\n *\t\t\t\tsrcset: 'image-large.webp',\n *\t\t\t\ttype: 'image/webp'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tmedia: '(max-width: 800px)',\n *\t\t\t\tsrcset: 'image-small.webp',\n *\t\t\t\ttype: 'image/webp'\n *\t\t\t}\n * \t\t]\n *\n * * It integrates with the {@link module:image/imageupload~ImageUpload} plugin so images uploaded in the editor\n * automatically render using `<picture>` if the {@glink features/images/image-upload/image-upload upload adapter}\n * supports image sources and provides neccessary data.\n *\n * @private\n * @extends module:core/plugin~Plugin\n */\nexport default class PictureEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ ImageEditing, ImageUtils ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'PictureEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst editor = this.editor;\n\n\t\tif ( editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\teditor.model.schema.extend( 'imageBlock', {\n\t\t\t\tallowAttributes: [ 'sources' ]\n\t\t\t} );\n\t\t}\n\n\t\tif ( editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\teditor.model.schema.extend( 'imageInline', {\n\t\t\t\tallowAttributes: [ 'sources' ]\n\t\t\t} );\n\t\t}\n\n\t\tthis._setupConversion();\n\t\tthis._setupImageUploadEditingIntegration();\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting images using the `<picture>` view element\n\t * and the model `sources` attribute.\n\t *\n\t * @private\n\t */\n\t_setupConversion() {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\t\tconst imageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tconversion.for( 'upcast' ).add( upcastPicture( imageUtils ) );\n\t\tconversion.for( 'downcast' ).add( downcastSourcesAttribute( imageUtils ) );\n\t}\n\n\t/**\n\t * Makes it possible for uploaded images to get the `sources` model attribute and the `<picture>...</picture>`\n\t * view structure out-of-the-box if relevant data is provided along the\n\t * {@link module:image/imageupload/imageuploadediting~ImageUploadEditing#event:uploadComplete} event.\n\t *\n\t * @private\n\t */\n\t_setupImageUploadEditingIntegration() {\n\t\tconst editor = this.editor;\n\n\t\tif ( !editor.plugins.has( 'ImageUploadEditing' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.listenTo( editor.plugins.get( 'ImageUploadEditing' ), 'uploadComplete', ( evt, { imageElement, data } ) => {\n\t\t\tconst sources = data.sources;\n\n\t\t\tif ( !sources ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.model.change( writer => {\n\t\t\t\twriter.setAttributes( {\n\t\t\t\t\tsources\n\t\t\t\t}, imageElement );\n\t\t\t} );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/table\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\n\nimport TableEditing from './tableediting';\nimport TableUI from './tableui';\nimport TableSelection from './tableselection';\nimport TableClipboard from './tableclipboard';\nimport TableKeyboard from './tablekeyboard';\nimport TableMouse from './tablemouse';\n\nimport '../theme/table.css';\n\n/**\n * The table plugin.\n *\n * For a detailed overview, check the {@glink features/table Table feature documentation}.\n *\n * This is a \"glue\" plugin that loads the following table features:\n *\n * * {@link module:table/tableediting~TableEditing editing feature},\n * * {@link module:table/tableselection~TableSelection selection feature},\n * * {@link module:table/tablekeyboard~TableKeyboard keyboard navigation feature},\n * * {@link module:table/tablemouse~TableMouse mouse selection feature},\n * * {@link module:table/tableclipboard~TableClipboard clipboard feature},\n * * {@link module:table/tableui~TableUI UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Table extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableEditing, TableUI, TableSelection, TableMouse, TableKeyboard, TableClipboard, Widget ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Table';\n\t}\n}\n\n/**\n * The configuration of the table feature. Used by the table feature in the `@ckeditor/ckeditor5-table` package.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n * \t\t\t\ttable: ... // Table feature options.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface TableConfig\n */\n\n/**\n * The configuration of the {@link module:table/table~Table} feature.\n *\n * Read more in {@link module:table/table~TableConfig}.\n *\n * @member {module:table/table~TableConfig} module:core/editor/editorconfig~EditorConfig#table\n */\n\n/**\n * Number of rows and columns to render by default as table heading when inserting new tables.\n *\n * You can configure it like this:\n *\n *\t\tconst tableConfig = {\n *\t\t\tdefaultHeadings: {\n *\t\t\t\trows: 1,\n *\t\t\t\tcolumns: 1\n *\t\t\t}\n *\t\t};\n *\n * Both rows and columns properties are optional defaulting to 0 (no heading).\n *\n * @member {Object} module:table/table~TableConfig#defaultHeadings\n */\n\n/**\n * An array of color definitions (either strings or objects).\n *\n *\t\tconst colors = [\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n *\t\t\t\tlabel: 'Grey'\n *\t\t\t},\n *\t\t\t'hsl(0, 0%, 80%)',\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n *\t\t\t\tlabel: 'Light grey'\n *\t\t\t},\n *\t\t\t{\n *\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n *\t\t\t\tlabel: 'White',\n *\t\t\t\thasBorder: true\n *\t\t\t},\n *\t\t\t'#FF0000'\n *\t\t]\n *\n * Usually used as a configuration parameter, for instance in\n * {@link module:table/table~TableConfig#tableProperties `config.table.tableProperties`}\n * or {@link module:table/table~TableConfig#tableCellProperties `config.table.tableCellProperties`}.\n *\n * @typedef {Array.<String|Object>} module:table/table~TableColorConfig\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tabletoolbar\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { WidgetToolbarRepository } from 'ckeditor5/src/widget';\nimport { getSelectedTableWidget, getTableWidgetAncestor } from './utils/ui/widget';\n\n/**\n * The table toolbar class. It creates toolbars for the table feature and its content (for now only for the table cell content).\n *\n * The table toolbar shows up when a table widget is selected. Its components (e.g. buttons) are created based on the\n * {@link module:table/table~TableConfig#tableToolbar `table.tableToolbar` configuration option}.\n *\n * Table content toolbar shows up when the selection is inside the content of a table. It creates its component based on the\n * {@link module:table/table~TableConfig#contentToolbar `table.contentToolbar` configuration option}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableToolbar extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ WidgetToolbarRepository ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tafterInit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst widgetToolbarRepository = editor.plugins.get( WidgetToolbarRepository );\n\n\t\tconst tableContentToolbarItems = editor.config.get( 'table.contentToolbar' );\n\n\t\tconst tableToolbarItems = editor.config.get( 'table.tableToolbar' );\n\n\t\tif ( tableContentToolbarItems ) {\n\t\t\twidgetToolbarRepository.register( 'tableContent', {\n\t\t\t\tariaLabel: t( 'Table toolbar' ),\n\t\t\t\titems: tableContentToolbarItems,\n\t\t\t\tgetRelatedElement: getTableWidgetAncestor\n\t\t\t} );\n\t\t}\n\n\t\tif ( tableToolbarItems ) {\n\t\t\twidgetToolbarRepository.register( 'table', {\n\t\t\t\tariaLabel: t( 'Table toolbar' ),\n\t\t\t\titems: tableToolbarItems,\n\t\t\t\tgetRelatedElement: getSelectedTableWidget\n\t\t\t} );\n\t\t}\n\t}\n}\n\n/**\n * Items to be placed in the table content toolbar.\n * The {@link module:table/tabletoolbar~TableToolbar} plugin is required to make this toolbar work.\n *\n * Assuming that you use the {@link module:table/tableui~TableUI} feature, the following toolbar items will be available\n * in {@link module:ui/componentfactory~ComponentFactory}:\n *\n * * `'tableRow'`,\n * * `'tableColumn'`,\n * * `'mergeTableCells'`.\n *\n * You can thus configure the toolbar like this:\n *\n *\t\tconst tableConfig = {\n *\t\t\tcontentToolbar: [ 'tableRow', 'tableColumn', 'mergeTableCells' ]\n *\t\t};\n *\n * Of course, the same buttons can also be used in the\n * {@link module:core/editor/editorconfig~EditorConfig#toolbar main editor toolbar}.\n *\n * Read more about configuring the toolbar in {@link module:core/editor/editorconfig~EditorConfig#toolbar}.\n *\n * @member {Array.<String>} module:table/table~TableConfig#contentToolbar\n */\n\n/**\n * Items to be placed in the table toolbar.\n * The {@link module:table/tabletoolbar~TableToolbar} plugin is required to make this toolbar work.\n *\n * You can thus configure the toolbar like this:\n *\n *\t\tconst tableConfig = {\n *\t\t\ttableToolbar: [ 'blockQuote' ]\n *\t\t};\n *\n * Of course, the same buttons can also be used in the\n * {@link module:core/editor/editorconfig~EditorConfig#toolbar main editor toolbar}.\n *\n * Read more about configuring the toolbar in {@link module:core/editor/editorconfig~EditorConfig#toolbar}.\n *\n * @member {Array.<String>} module:table/table~TableConfig#tableToolbar\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TablePropertiesEditing from './tableproperties/tablepropertiesediting';\nimport TablePropertiesUI from './tableproperties/tablepropertiesui';\n\n/**\n * The table properties feature. Enables support for setting properties of tables (size, border, background, etc.).\n *\n * Read more in the {@glink features/table#table-and-cell-styling-tools Table and cell styling tools} section.\n * See also the {@link module:table/tablecellproperties~TableCellProperties} plugin.\n *\n * This is a \"glue\" plugin that loads the\n * {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing table properties editing feature} and\n * the {@link module:table/tableproperties/tablepropertiesui~TablePropertiesUI table properties UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableProperties extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableProperties';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TablePropertiesEditing, TablePropertiesUI ];\n\t}\n}\n\n/**\n * The configuration of the table properties user interface (balloon). It allows to define:\n *\n * * The color palette for the table border color style field (`tableProperties.borderColors`),\n * * The color palette for the table background style field (`tableProperties.backgroundColors`).\n *\n *\t\tconst tableConfig = {\n *\t\t\ttableProperties: {\n *\t\t\t\tborderColors: [\n *\t\t\t\t\t{\n *\t\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n *\t\t\t\t\t\tlabel: 'Light grey'\n *\t\t\t\t\t},\n *\t\t\t\t\t// ...\n *\t\t\t\t],\n *\t\t\t\tbackgroundColors: [\n *\t\t\t\t\t{\n *\t\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n *\t\t\t\t\t\tlabel: 'Green'\n *\t\t\t\t\t},\n *\t\t\t\t\t// ...\n *\t\t\t\t]\n *\t\t\t}\n *\t\t};\n *\n * * The default styles for tables (`tableProperties.defaultProperties`):\n *\n *\t\tconst tableConfig = {\n *\t\t\ttableProperties: {\n *\t\t\t\tdefaultProperties: {\n *\t\t\t\t\tborderStyle: 'dashed',\n *\t\t\t\t\tborderColor: 'hsl(0, 0%, 90%)',\n *\t\t\t\t\tborderWidth: '3px',\n *\t\t\t\t\talignment: 'left'\n *\t\t\t\t}\n *\t\t\t}\n *\t\t}\n *\n * \t {@link module:table/tableproperties~TablePropertiesOptions Read more about the supported properties.}\n *\n * **Note**: The `borderColors` and `backgroundColors` options do not impact the data loaded into the editor,\n * i.e. they do not limit or filter the colors in the data. They are used only in the user interface\n * allowing users to pick colors in a more convenient way. The `defaultProperties` option does impact the data.\n * Default values will not be kept in the editor model.\n *\n * The default color palettes for the table background and the table border are the same\n * ({@link module:table/utils/ui/table-properties~defaultColors check out their content}).\n *\n * Both color palette configurations must follow the\n * {@link module:table/table~TableColorConfig table color configuration format}.\n *\n * Read more about configuring the table feature in {@link module:table/table~TableConfig}.\n *\n * @member {Object} module:table/table~TableConfig#tableProperties\n */\n\n/**\n * The configuration of the table default properties feature.\n *\n * @typedef {Object} module:table/tableproperties~TablePropertiesOptions\n *\n * @property {String} width The default `width` of the table.\n *\n * @property {String} height The default `height` of the table.\n *\n * @property {String} backgroundColor The default `background-color` of the table.\n *\n * @property {String} borderColor The default `border-color` of the table.\n *\n * @property {String} borderWidth The default `border-width` of the table.\n *\n * @property {String} [borderStyle='none'] The default `border-style` of the table.\n *\n * @property {String} [alignment='center'] The default `alignment` of the table.\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport TableCellPropertiesUI from './tablecellproperties/tablecellpropertiesui';\nimport TableCellPropertiesEditing from './tablecellproperties/tablecellpropertiesediting';\n\n/**\n * The table cell properties feature. Enables support for setting properties of table cells (size, border, background, etc.).\n *\n * Read more in the {@glink features/table#table-and-cell-styling-tools Table and cell styling tools} section.\n * See also the {@link module:table/tableproperties~TableProperties} plugin.\n *\n * This is a \"glue\" plugin that loads the\n * {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing table cell properties editing feature} and\n * the {@link module:table/tablecellproperties/tablecellpropertiesui~TableCellPropertiesUI table cell properties UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableCellProperties extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableCellProperties';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableCellPropertiesEditing, TableCellPropertiesUI ];\n\t}\n}\n\n/**\n * The configuration of the table cell properties user interface (balloon). It allows to define:\n *\n * * The color palette for the cell border color style field (`tableCellProperties.borderColors`),\n * * The color palette for the cell background style field (`tableCellProperties.backgroundColors`).\n *\n *\t\tconst tableConfig = {\n *\t\t\ttableCellProperties: {\n *\t\t\t\tborderColors: [\n *\t\t\t\t\t{\n *\t\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n *\t\t\t\t\t\tlabel: 'Light grey'\n *\t\t\t\t\t},\n *\t\t\t\t\t// ...\n *\t\t\t\t],\n *\t\t\t\tbackgroundColors: [\n *\t\t\t\t\t{\n *\t\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n *\t\t\t\t\t\tlabel: 'Green'\n *\t\t\t\t\t},\n *\t\t\t\t\t// ...\n *\t\t\t\t]\n *\t\t\t}\n *\t\t};\n *\n * * The default styles for table cells (`tableCellProperties.defaultProperties`):\n *\n *\t\tconst tableConfig = {\n *\t\t\ttableCellProperties: {\n *\t\t\t\tdefaultProperties: {\n *\t\t\t\t\thorizontalAlignment: 'right',\n *\t\t\t\t\tverticalAlignment: 'bottom',\n *\t\t\t\t\tpadding: '5px'\n *\t\t\t\t}\n *\t\t\t}\n *\t\t}\n *\n * \t {@link module:table/tableproperties~TablePropertiesOptions Read more about the supported properties.}\n *\n * **Note**: The `borderColors` and `backgroundColors` options do not impact the data loaded into the editor,\n * i.e. they do not limit or filter the colors in the data. They are used only in the user interface\n * allowing users to pick colors in a more convenient way. The `defaultProperties` option does impact the data.\n * Default values will not be kept in the editor model.\n *\n * The default color palettes for the cell background and the cell border are the same\n * ({@link module:table/utils/ui/table-properties~defaultColors check out their content}).\n *\n * Both color palette configurations must follow the\n * {@link module:table/table~TableColorConfig table color configuration format}.\n *\n * Read more about configuring the table feature in {@link module:table/table~TableConfig}.\n *\n * @member {Object} module:table/table~TableConfig#tableCellProperties\n */\n\n/**\n * The configuration of the table cell default properties feature.\n *\n * @typedef {Object} module:table/tablecellproperties~TableCellPropertiesOptions\n *\n * @property {String} width The default `width` of the table cell.\n *\n * @property {String} height The default `height` of the table cell.\n *\n * @property {String} padding The default `padding` of the table cell.\n *\n * @property {String} backgroundColor The default `background-color` of the table cell.\n *\n * @property {String} borderColor The default `border-color` of the table cell.\n *\n * @property {String} borderWidth The default `border-width` of the table cell.\n *\n * @property {String} [borderStyle='none'] The default `border-style` of the table cell.\n *\n * @property {String} [horizontalAlignment='center'] The default `horizontalAlignment` of the table cell.\n *\n * @property {String} [verticalAlignment='middle'] The default `verticalAlignment` of the table cell.\n */\n\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecaption\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport TableCaptionEditing from './tablecaption/tablecaptionediting';\nimport TableCaptionUI from './tablecaption/tablecaptionui';\n\nimport '../theme/tablecaption.css';\n\n/**\n * The table caption plugin.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class TableCaption extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'TableCaption';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ TableCaptionEditing, TableCaptionUI ];\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indent\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport IndentEditing from './indentediting';\nimport IndentUI from './indentui';\n\n/**\n * The indent feature.\n *\n * This plugin acts as a single entry point plugin for other features that implement indentation of elements like lists or paragraphs.\n *\n * The compatible features are:\n *\n * * The {@link module:list/list~List} or {@link module:list/list/listediting~ListEditing} feature for list indentation.\n * * The {@link module:indent/indentblock~IndentBlock} feature for block indentation.\n *\n * This is a \"glue\" plugin that loads the following plugins:\n *\n * * The {@link module:indent/indentediting~IndentEditing indent editing feature}.\n * * The {@link module:indent/indentui~IndentUI indent UI feature}.\n *\n * The dependent plugins register the `'indent'` and `'outdent'` commands and introduce the `'indent'` and `'outdent'` buttons\n * that allow to increase or decrease text indentation of supported elements.\n *\n * **Note**: In order for the commands and buttons to work, at least one of compatible features is required.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Indent extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Indent';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ IndentEditing, IndentUI ];\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport internalLinkIcon from './icons/trilium.svg';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\n\nexport default class InternalLinkPlugin extends Plugin {\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( 'internalLink', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: 'Internal Trilium link (CTRL-L)',\n\t\t\t\ticon: internalLinkIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n            // enable internal link only if the editor is not read only\n\t\t\tview.bind('isEnabled').to(editor, 'isReadOnly', isReadOnly => !isReadOnly);\n\n\t\t\tview.on( 'execute', () => {\n\t\t\t\tconst editorEl = editor.editing.view.getDomRoot();\n\t\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\t\tcomponent.triggerCommand('addLinkToText');\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\"?>\\n<!-- Created with Inkscape (http://www.inkscape.org/) -->\\n\\n<svg\\n   viewBox=\\\"0 0 1000 1000\\\"\\n   version=\\\"1.1\\\"\\n   id=\\\"svg52\\\"\\n   sodipodi:docname=\\\"trilium.svg\\\"\\n   inkscape:version=\\\"1.1.2 (0a00cf5339, 2022-02-04)\\\"\\n   xmlns:inkscape=\\\"http://www.inkscape.org/namespaces/inkscape\\\"\\n   xmlns:sodipodi=\\\"http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd\\\"\\n   xmlns=\\\"http://www.w3.org/2000/svg\\\"\\n   xmlns:svg=\\\"http://www.w3.org/2000/svg\\\">\\n  <sodipodi:namedview\\n     id=\\\"namedview8\\\"\\n     pagecolor=\\\"#ffffff\\\"\\n     bordercolor=\\\"#666666\\\"\\n     borderopacity=\\\"1.0\\\"\\n     inkscape:pageshadow=\\\"2\\\"\\n     inkscape:pageopacity=\\\"0.0\\\"\\n     inkscape:pagecheckerboard=\\\"0\\\"\\n     showgrid=\\\"false\\\"\\n     inkscape:zoom=\\\"0.644\\\"\\n     inkscape:cx=\\\"263.19876\\\"\\n     inkscape:cy=\\\"552.01863\\\"\\n     inkscape:window-width=\\\"1860\\\"\\n     inkscape:window-height=\\\"1171\\\"\\n     inkscape:window-x=\\\"60\\\"\\n     inkscape:window-y=\\\"0\\\"\\n     inkscape:window-maximized=\\\"1\\\"\\n     inkscape:current-layer=\\\"svg52\\\" />\\n  <defs\\n     id=\\\"defs49\\\" />\\n  <g\\n     id=\\\"layer1\\\"\\n     transform=\\\"matrix(38.901422,0,0,38.901422,-3639.1766,-4159.6755)\\\">\\n    <path\\n       d=\\\"m 113.74804,110.03165 c -1.42996,-0.0442 -2.17088,0.625 -2.34981,0.68707 0.16278,-0.3083 0.27171,-0.50253 0.688,-0.936 -1.41596,-0.0148 -2.72887,0.29159 -3.73058,1.22872 -1.34352,1.25681 -1.23908,2.2981 -1.24178,2.29296 2.6e-4,5.3e-4 -0.21198,-0.67904 -0.27564,-1.40587 -1.46206,2.02387 -2.03936,4.70551 -0.93087,6.70595 0.6881,-1.65994 1.78073,-3.09055 3.18884,-4.21865 0.0464,-1.18373 0.52261,-2.18385 1.27529,-2.92226 -0.67922,0.81298 -0.97894,1.73919 -0.94869,2.67267 1.63782,-1.2219 3.64526,-2.03628 5.85031,-2.30351 -1.59648,0.29336 -3.04295,0.92965 -4.30723,1.79752 0.79133,0.36141 1.69504,0.41807 2.64485,0.0873 -0.91061,0.42675 -1.92147,0.49657 -2.9441,0.12489 -0.90763,0.66467 -1.71482,1.45002 -2.40861,2.31313 1.2317,0.40267 2.57896,0.31941 3.91968,-0.36393 -1.23077,0.79497 -2.67669,1.0931 -4.22173,0.75455 -0.61594,0.82662 -1.1322,1.71446 -1.53571,2.62946 0.49703,0.36645 2.65401,1.5162 6.35388,-1.21219 -0.52242,-0.15439 -0.94581,-0.37271 -0.946,-0.37308 0.0118,0.005 0.3813,0.0392 1.46198,-0.6082 0.95542,-0.55873 1.77726,-1.5708 2.38397,-2.35858 -0.51607,-0.19014 -0.91799,-0.38969 -0.91818,-0.39016 -2.6e-4,-2.6e-4 0.66691,0.0449 1.70185,-0.74737 0.92313,-0.70667 1.95369,-1.73106 1.95686,-1.70213 0.007,0.006 -2.27337,-1.67833 -4.66658,-1.75226\\\"\\n       id=\\\"path1983\\\"\\n       style=\\\"stroke-width:0.264583\\\" />\\n    <path\\n       d=\\\"m 97.266941,113.71206 c 1.085186,-0.31546 1.776174,0.0487 1.924677,0.0607 -0.181896,-0.20295 -0.301379,-0.32953 -0.700376,-0.57786 1.079852,-0.29036 2.140718,-0.31557 3.081128,0.20137 1.26132,0.69332 1.37526,1.50765 1.37643,1.50324 -2.1e-4,5.2e-4 0.0356,-0.55938 -0.051,-1.12601 1.49474,1.25469 2.43548,3.18504 1.96031,4.92842 -0.83512,-1.12979 -1.93695,-2.00494 -3.22366,-2.58743 -0.25583,-0.89312 -0.80621,-1.56175 -1.51917,-1.97627 0.67072,0.48585 1.07227,1.13284 1.22302,1.85031 -1.47981,-0.60864 -3.166266,-0.83387 -4.90201,-0.60297 1.275297,-0.091 3.97663,0.0938 6.16856,1.91271 -0.8667,0.54971 -1.91231,0.75182 -3.064598,0.49509 1.089028,0.36336 2.250068,0.30579 3.368318,-0.25684 0.62485,0.50874 1.18494,1.08377 1.66384,1.70177 -0.31184,0.37733 -1.74694,1.67877 -5.0839,0.32807 0.370727,-0.22061 0.65376,-0.47052 0.65386,-0.47083 -0.008,0.006 -0.2842,0.10505 -1.231125,-0.17543 -0.83448,-0.23762 -1.651249,-0.84721 -2.261907,-1.32822 0.359204,-0.24655 0.629433,-0.47787 0.629433,-0.47829 1.03e-4,-2.1e-4 -0.50152,0.16566 -1.440336,-0.23425 -0.837464,-0.35685 -1.816182,-0.93461 -1.813195,-0.91192 -0.0038,0.006 1.425721,-1.7274 3.241691,-2.25538\\\"\\n       id=\\\"path1985\\\"\\n       style=\\\"stroke-width:0.264583\\\" />\\n    <path\\n       d=\\\"m 105.05663,128.63261 c -0.79134,-0.73638 -0.82521,-1.48618 -0.88758,-1.6143 -0.0802,0.25063 -0.12732,0.41184 -0.13946,0.86376 -0.76798,-0.74444 -1.30598,-1.60504 -1.33424,-2.63626 -0.0379,-1.38278 0.58413,-1.88161 0.57992,-1.88032 5.3e-4,0 -0.48274,0.24889 -0.91199,0.60198 0.31536,-1.85427 1.46295,-3.58849 3.14515,-4.06444 -0.53297,1.24924 -0.72418,2.5913 -0.58168,3.94005 -0.61836,0.65478 -0.90639,1.44016 -0.90382,2.23317 0.0773,-0.79359 0.4199,-1.44591 0.94341,-1.92678 0.21481,1.52067 0.84951,3.02079 1.88754,4.33458 -0.6972,-1.00448 -1.86009,-3.31968 -1.41507,-6.02844 0.87976,0.44016 1.55757,1.20019 1.90564,2.27635 -0.22846,-1.0771 -0.84226,-2.00411 -1.85541,-2.64481 0.11867,-0.76719 0.32424,-1.51409 0.60492,-2.21568 0.46593,0.0691 2.24834,0.60303 2.75082,4.02125 -0.36419,-0.19538 -0.71004,-0.30404 -0.71039,-0.30392 0.009,0.003 0.22601,0.18165 0.45413,1.10045 0.20896,0.8051 0.1,1.78048 -0.003,2.5223 -0.38031,-0.17308 -0.70444,-0.28043 -0.70467,-0.28019 -2.6e-4,0 0.38218,0.33044 0.50704,1.30201 0.11131,0.86673 0.10758,1.95955 0.12498,1.94579 0.007,2.2e-4 -2.13212,-0.31444 -3.45655,-1.54655\\\"\\n       id=\\\"path1987\\\"\\n       style=\\\"stroke-width:0.264583\\\" />\\n  </g>\\n</svg>\\n\";","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport markdownIcon from './icons/markdown-mark.svg';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\n\nexport default class MarkdownImportPlugin extends Plugin {\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( 'markdownImport', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: 'Markdown import from clipboard',\n\t\t\t\ticon: markdownIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\t// Callback executed once the image is clicked.\n\t\t\tview.on( 'execute', () => {\n\t\t\t\tglob.importMarkdownInline();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"208\\\" height=\\\"128\\\" viewBox=\\\"0 0 208 128\\\"><rect width=\\\"198\\\" height=\\\"118\\\" x=\\\"5\\\" y=\\\"5\\\" ry=\\\"10\\\" stroke=\\\"#000\\\" stroke-width=\\\"10\\\" fill=\\\"none\\\"/><path d=\\\"M30 98V30h20l20 25 20-25h20v68H90V59L70 84 50 59v39zm125 0l-30-33h20V30h20v35h20z\\\"/></svg>\";","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport scissorsIcon from './icons/scissors.svg';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\nimport HtmlDataProcessor from '@ckeditor/ckeditor5-engine/src/dataprocessor/htmldataprocessor';\n\nexport default class CutToNotePlugin extends Plugin {\n\tinit() {\n\t\tthis.htmlDataProcessor = new HtmlDataProcessor();\n\n\t\tthis.editor.ui.componentFactory.add( 'cutToNote', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: 'Cut & paste selection to sub-note',\n\t\t\t\ticon: scissorsIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\t// Callback executed once the image is clicked.\n\t\t\tview.on('execute', () => {\n\t\t\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\t\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\t\tcomponent.triggerCommand('cutIntoNote');\n\t\t\t});\n\n\t\t\treturn view;\n\t\t} );\n\n\t\tthis.editor.getSelectedHtml = () => this.getSelectedHtml();\n\t\tthis.editor.removeSelection = () => this.removeSelection();\n\t}\n\n\tgetSelectedHtml() {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\tconst content = this.editor.data.toView(model.getSelectedContent(document.selection));\n\n\t\treturn this.htmlDataProcessor.toData(content);\n\t}\n\n\tasync removeSelection() {\n\t\tconst model = this.editor.model;\n\n\t\tmodel.deleteContent(model.document.selection);\n\n\t\tconst component = this.getComponent();\n\n\t\tawait component.triggerCommand('saveNoteDetailNow');\n\t}\n\n\tgetComponent() {\n\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\n\t\treturn glob.getComponentByEl( editorEl );\n\t}\n}\n","export default \"<?xml version=\\\"1.0\\\" encoding=\\\"utf-8\\\"?>\\n<!-- Svg Vector Icons : http://www.onlinewebfonts.com/icon -->\\n<!DOCTYPE svg PUBLIC \\\"-//W3C//DTD SVG 1.1//EN\\\" \\\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\\\">\\n<svg version=\\\"1.1\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\" xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\" x=\\\"0px\\\" y=\\\"0px\\\" viewBox=\\\"0 0 1000 1000\\\" enable-background=\\\"new 0 0 1000 1000\\\" xml:space=\\\"preserve\\\">\\n<metadata> Svg Vector Icons : http://www.onlinewebfonts.com/icon </metadata>\\n<g><g><path d=\\\"M853.9,754.9c-26-45.4-66.5-76.2-109.1-87.8c-33.7-9.2-68.7-6.4-98.9,10.7l-90-157.3C611.6,409.5,736.5,160.5,759,121.2C788,70.4,736,10,736,10L500,422.8L264,10c0,0-52,60.4-22.9,111.2c22.5,39.3,147.5,288.3,203.1,399.3l-89.9,157.3c-30.2-17.1-65.3-19.9-98.9-10.7c-42.7,11.6-83.1,42.3-109.1,87.8c-46.8,81.7-28.9,179.7,39.7,219c30.4,17.5,65.7,20.3,99.6,11.1c42.6-11.6,83.1-42.4,109.1-87.7c11.4-20,18.9-41,22.8-61.8v0c0-0.2,0-0.3,0.2-0.5c0.2-1.7,0.5-3.5,0.7-5.4c19.3-129.5,55.8-195.7,81.6-227.8c25.9,32.1,62.4,98.3,81.7,227.8c0.2,1.9,0.5,3.6,0.7,5.4c0.1,0.2,0.1,0.3,0.2,0.5v0c3.9,20.8,11.4,41.8,22.7,61.8c26,45.3,66.5,76.1,109.2,87.7c34,9.2,69.2,6.4,99.7-11.1C882.8,934.5,900.6,836.5,853.9,754.9z M327.9,858.9c-14.8,25.8-38.1,45.2-62.5,51.8c-10.8,3-26.7,4.7-41.3-3.6c-31.1-17.8-36.2-70.1-11.1-114c15-26,37.8-45,62.5-51.8c10.7-2.9,26.7-4.7,41.3,3.6C347.9,762.7,353,814.9,327.9,858.9z M775.9,907.1c-14.6,8.4-30.4,6.6-41.3,3.6c-24.4-6.6-47.7-26-62.5-51.8c-25.1-44-20-96.2,11.1-114c14.7-8.3,30.6-6.5,41.3-3.6C749.3,748,772.1,767,787,793C812.1,837,807.1,889.3,775.9,907.1z\\\"/><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g></g>\\n</svg>\";","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/font\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport FontFamily from './fontfamily';\nimport FontSize from './fontsize';\nimport FontColor from './fontcolor';\nimport FontBackgroundColor from './fontbackgroundcolor';\n\n/**\n * A plugin that enables a set of text styling features:\n *\n * * {@link module:font/fontsize~FontSize},\n * * {@link module:font/fontfamily~FontFamily}.\n * * {@link module:font/fontcolor~FontColor},\n * * {@link module:font/fontbackgroundcolor~FontBackgroundColor}.\n *\n * For a detailed overview, check the {@glink features/font Font feature} documentation\n * and the {@glink api/font package page}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Font extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FontFamily, FontSize, FontColor, FontBackgroundColor ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Font';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblock\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport CodeBlockEditing from './codeblockediting';\nimport CodeBlockUI from './codeblockui';\n\n/**\n * The code block plugin.\n *\n * For more information about this feature check the {@glink api/code-block package page} and the\n * {@glink features/code-blocks code block feature guide}.\n *\n * This is a \"glue\" plugin that loads the {@link module:code-block/codeblockediting~CodeBlockEditing code block editing feature}\n * and the {@link module:code-block/codeblockui~CodeBlockUI code block UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class CodeBlock extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ CodeBlockEditing, CodeBlockUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'CodeBlock';\n\t}\n}\n\n/**\n * The configuration of the {@link module:code-block/codeblock~CodeBlock} feature.\n *\n * Read more in {@link module:code-block/codeblock~CodeBlockConfig}.\n *\n * @member {module:code-block/codeblock~CodeBlockConfig} module:core/editor/editorconfig~EditorConfig#codeBlock\n */\n\n/**\n * The configuration of the {@link module:code-block/codeblock~CodeBlock code block feature}.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tcodeBlock:  ... // The code block feature configuration.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface CodeBlockConfig\n */\n\n/**\n * The code block language descriptor. See {@link module:code-block/codeblock~CodeBlockConfig#languages} to learn more.\n *\n *\t\t{\n *\t\t\t language: 'javascript',\n *\t\t\t label: 'JavaScript'\n *\t\t}\n *\n * @typedef {Object} module:code-block/codeblock~CodeBlockLanguageDefinition\n * @property {String} language The name of the language that will be stored in the model attribute. Also, when `class`\n * is not specified, it will be used to create the CSS class associated with the language (prefixed by \"language-\").\n * @property {String} label The human–readable label associated with the language and displayed in the UI.\n * @property {String} [class] The CSS class associated with the language. When not specified the `language`\n * property is used to create a class prefixed by \"language-\".\n */\n\n/**\n * The list of code languages available in the user interface to choose for a particular code block.\n *\n * The language of the code block is represented as a CSS class (by default prefixed by \"language-\") set on the\n * `<code>` element, both when editing and in the editor data. The CSS class associated with the language\n * can be used by third–party code syntax highlighters to detect and apply the correct highlighting.\n *\n * For instance, this language configuration:\n *\n *\t\tClassicEditor\n *\t\t\t.create( document.querySelector( '#editor' ), {\n *\t\t\t\tcodeBlock: {\n *\t\t\t\t\tlanguages: [\n *\t\t\t\t\t\t// ...\n *\t\t\t\t\t\t{ language: 'javascript', label: 'JavaScript' },\n *\t\t\t\t\t\t// ...\n *\t\t\t\t\t]\n *\t\t\t\t}\n *\t\t} )\n *\t\t.then( ... )\n *\t\t.catch( ... );\n *\n * will result in the following structure of JavaScript code blocks in the editor editing and data:\n *\n *\t\t<pre><code class=\"language-javascript\">window.alert( 'Hello world!' )</code></pre>\n *\n * You can customize the CSS class by specifying an optional `class` property in the language definition.\n * You can set **multiple classes** but **only the first one** will be used as defining language class:\n *\n *\t\tClassicEditor\n *\t\t\t.create( document.querySelector( '#editor' ), {\n *\t\t\t\tcodeBlock: {\n *\t\t\t\t\tlanguages: [\n *\t\t\t\t\t\t// Do not render the CSS class for the plain text code blocks.\n *\t\t\t\t\t\t{ language: 'plaintext', label: 'Plain text', class: '' },\n *\n *\t\t\t\t\t\t// Use the \"php-code\" class for PHP code blocks.\n *\t\t\t\t\t\t{ language: 'php', label: 'PHP', class: 'php-code' },\n *\n *\t\t\t\t\t\t// Use the \"js\" class for JavaScript code blocks.\n *\t\t\t\t\t\t// Note that only the first (\"js\") class will determine the language of the block when loading data.\n *\t\t\t\t\t\t{ language: 'javascript', label: 'JavaScript', class: 'js javascript js-code' },\n *\n *\t\t\t\t\t\t// Python code blocks will have the default \"language-python\" CSS class.\n *\t\t\t\t\t\t{ language: 'python', label: 'Python' }\n *\t\t\t\t\t]\n *\t\t\t\t}\n *\t\t} )\n *\t\t.then( ... )\n *\t\t.catch( ... );\n *\n * The default value of the language configuration is as follows:\n *\n *\t\tlanguages: [\n *\t\t\t{ language: 'plaintext', label: 'Plain text' }, // The default language.\n *\t\t\t{ language: 'c', label: 'C' },\n *\t\t\t{ language: 'cs', label: 'C#' },\n *\t\t\t{ language: 'cpp', label: 'C++' },\n *\t\t\t{ language: 'css', label: 'CSS' },\n *\t\t\t{ language: 'diff', label: 'Diff' },\n *\t\t\t{ language: 'html', label: 'HTML' },\n *\t\t\t{ language: 'java', label: 'Java' },\n *\t\t\t{ language: 'javascript', label: 'JavaScript' },\n *\t\t\t{ language: 'php', label: 'PHP' },\n *\t\t\t{ language: 'python', label: 'Python' },\n *\t\t\t{ language: 'ruby', label: 'Ruby' },\n *\t\t\t{ language: 'typescript', label: 'TypeScript' },\n *\t\t\t{ language: 'xml', label: 'XML' }\n *\t\t]\n *\n * **Note**: The first language defined in the configuration is considered the default one. This means it will be\n * applied to code blocks loaded from the data that have no CSS `class` specified (or no matching `class` in the configuration).\n * It will also be used when creating new code blocks using the main UI button. By default it is \"Plain text\".\n *\n * @member {Array.<module:code-block/codeblock~CodeBlockLanguageDefinition>} module:code-block/codeblock~CodeBlockConfig#languages\n */\n\n/**\n * A sequence of characters inserted or removed from the code block lines when its indentation\n * is changed by the user, for instance, using <kbd>Tab</kbd> and <kbd>Shift</kbd>+<kbd>Tab</kbd> keys.\n *\n * The default value is a single tab character (\"\t\", `\\u0009` in Unicode).\n *\n * This configuration is used by `indentCodeBlock` and `outdentCodeBlock` commands (instances of\n * {@link module:code-block/indentcodeblockcommand~IndentCodeBlockCommand}).\n *\n * **Note**: Setting this configuration to `false` will disable the code block indentation commands\n * and associated keystrokes.\n *\n * @member {String} module:code-block/codeblock~CodeBlockConfig#indentSequence\n */\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontalline\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\nimport HorizontalLineEditing from './horizontallineediting';\nimport HorizontalLineUI from './horizontallineui';\n\n/**\n * The horizontal line feature.\n *\n * It provides the possibility to insert a horizontal line into the rich-text editor.\n *\n * For a detailed overview, check the {@glink features/horizontal-line Horizontal line feature} documentation.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class HorizontalLine extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ HorizontalLineEditing, HorizontalLineUI, Widget ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'HorizontalLine';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformat\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport RemoveFormatUI from './removeformatui';\nimport RemoveFormatEditing from './removeformatediting';\n\n/**\n * The remove format plugin.\n *\n * This is a \"glue\" plugin which loads the {@link module:remove-format/removeformatediting~RemoveFormatEditing}\n * and {@link module:remove-format/removeformatui~RemoveFormatUI} plugins.\n *\n * For a detailed overview, check out the {@glink features/remove-format remove format} feature documentation.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class RemoveFormat extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ RemoveFormatEditing, RemoveFormatUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'RemoveFormat';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplace\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FindAndReplaceUI from './findandreplaceui';\nimport FindAndReplaceEditing from './findandreplaceediting';\n\n/**\n * The find and replace plugin.\n *\n * For a detailed overview, check the {@glink features/find-and-replace Find and replace feature documentation}.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * The {@link module:find-and-replace/findandreplaceediting~FindAndReplaceEditing find and replace editing feature},\n * * The {@link module:find-and-replace/findandreplaceui~FindAndReplaceUI find and replace UI feature}\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class FindAndReplace extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FindAndReplaceEditing, FindAndReplaceUI ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'FindAndReplace';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst ui = this.editor.plugins.get( 'FindAndReplaceUI' );\n\t\tconst findAndReplaceEditing = this.editor.plugins.get( 'FindAndReplaceEditing' );\n\t\tconst state = findAndReplaceEditing.state;\n\n\t\tui.on( 'findNext', ( event, data ) => {\n\t\t\t// Data is contained only for the \"find\" button.\n\t\t\tif ( data ) {\n\t\t\t\tstate.searchText = data.searchText;\n\t\t\t\tthis.editor.execute( 'find', data.searchText, data );\n\t\t\t} else {\n\t\t\t\t// Find next arrow button press.\n\t\t\t\tthis.editor.execute( 'findNext' );\n\t\t\t}\n\t\t} );\n\n\t\tui.on( 'findPrevious', ( event, data ) => {\n\t\t\tif ( data && state.searchText !== data.searchText ) {\n\t\t\t\tthis.editor.execute( 'find', data.searchText );\n\t\t\t} else {\n\t\t\t\t// Subsequent calls.\n\t\t\t\tthis.editor.execute( 'findPrevious' );\n\t\t\t}\n\t\t} );\n\n\t\tui.on( 'replace', ( event, data ) => {\n\t\t\tif ( state.searchText !== data.searchText ) {\n\t\t\t\tthis.editor.execute( 'find', data.searchText );\n\t\t\t}\n\n\t\t\tconst highlightedResult = state.highlightedResult;\n\n\t\t\tif ( highlightedResult ) {\n\t\t\t\tthis.editor.execute( 'replace', data.replaceText, highlightedResult );\n\t\t\t}\n\t\t} );\n\n\t\tui.on( 'replaceAll', ( event, data ) => {\n\t\t\t// The state hadn't been yet built for this search text.\n\t\t\tif ( state.searchText !== data.searchText ) {\n\t\t\t\tthis.editor.execute( 'find', data.searchText );\n\t\t\t}\n\n\t\t\tthis.editor.execute( 'replaceAll', data.replaceText, state.results );\n\t\t} );\n\n\t\t// Reset the state when the user invalidated last search results, for instance,\n\t\t// by starting typing another search query or changing options.\n\t\tui.on( 'searchReseted', () => {\n\t\t\tstate.clear( this.editor.model );\n\t\t\tfindAndReplaceEditing.stop();\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mention\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport MentionEditing, { _toMentionAttribute } from './mentionediting';\nimport MentionUI from './mentionui';\n\nimport '../theme/mention.css';\n\n/**\n * The mention plugin.\n *\n * For a detailed overview, check the {@glink features/mentions Mention feature documentation}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Mention extends Plugin {\n\t/**\n\t * Creates a mention attribute value from the provided view element and optional data.\n\t *\n\t *\t\teditor.plugins.get( 'Mention' ).toMentionAttribute( viewElement, { userId: '1234' } );\n\t *\n\t *\t\t// For a view element: <span data-mention=\"@joe\">@John Doe</span>\n\t *\t\t// it will return:\n\t *\t\t// { id: '@joe', userId: '1234', uid: '7a7bc7...', _text: '@John Doe' }\n\t *\n\t * @param {module:engine/view/element~Element} viewElement\n\t * @param {String|Object} [data] Additional data to be stored in the mention attribute.\n\t * @returns {module:mention/mention~MentionAttribute}\n\t */\n\ttoMentionAttribute( viewElement, data ) {\n\t\treturn _toMentionAttribute( viewElement, data );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get pluginName() {\n\t\treturn 'Mention';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ MentionEditing, MentionUI ];\n\t}\n}\n\n/**\n * The configuration of the {@link module:mention/mention~Mention} feature.\n *\n * Read more in {@link module:mention/mention~MentionConfig}.\n *\n * @member {module:mention/mention~MentionConfig} module:core/editor/editorconfig~EditorConfig#mention\n * @type {Array.<module/mention~MentionFeed>}\n */\n\n/**\n * The configuration of the mention feature.\n *\n * Read more about {@glink features/mentions#configuration configuring the mention feature}.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tmention: ... // Mention feature options.\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.\n *\n * @interface MentionConfig\n */\n\n/**\n * The list of mention feeds supported by the editor.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tplugins: [ Mention, ... ],\n *\t\t\t\tmention: {\n *\t\t\t\t\tfeeds: [\n *\t\t\t\t\t\t{\n *\t\t\t\t\t\t\tmarker: '@',\n *\t\t\t\t\t\t\tfeed: [ '@Barney', '@Lily', '@Marshall', '@Robin', '@Ted' ]\n *\t\t\t\t\t\t},\n *\t\t\t\t\t\t...\n * \t\t\t\t\t]\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * You can provide many mention feeds but they must use different `marker`s.\n * For example, you can use `'@'` to autocomplete people and `'#'` to autocomplete tags.\n *\n * @member {Array.<module:mention/mention~MentionFeed>} module:mention/mention~MentionConfig#feeds\n */\n\n/**\n * The configuration of the custom commit keys supported by the editor.\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tplugins: [ Mention, ... ],\n *\t\t\t\tmention: {\n *\t\t\t\t\t// [ Enter, Space ]\n *\t \t\t\t\tcommitKeys: [ 13, 32 ]\n *\t\t\t\t\tfeeds: [\n *\t\t\t\t\t\t{ ... }\n *\t\t\t\t\t\t...\n * \t\t\t\t\t]\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * Custom commit keys configuration allows you to customize how users will confirm the selection of mentions from the dropdown list.\n * You can add as many mention commit keys as you need. For instance, in the snippet above new mentions will be committed by pressing\n * either <kbd>Enter</kbd> or <kbd>Space</kbd> (13 and 32 key codes respectively).\n *\n * @member {Array.<Number>} module:mention/mention~MentionConfig#commitKeys\n * @default [ 13, 9 ] // [ Enter, Tab ]\n */\n\n/**\n * The configuration of the custom number of visible mentions.\n *\n * Customizing the number of visible mentions allows you to specify how many available elements will the users be able to see\n * in the dropdown list. You can specify any number you see fit. For example, in the snippets below you will find the\n * dropdownLimit set to `20` and `Infinity` (this will result in showing all available mentions).\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tplugins: [ Mention, ... ],\n *\t\t\t\tmention: {\n *\t \t\t\t\tdropdownLimit: 20,\n *\t\t\t\t\tfeeds: [\n *\t\t\t\t\t\t{ ... }\n *\t\t\t\t\t\t...\n * \t\t\t\t\t]\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tplugins: [ Mention, ... ],\n *\t\t\t\tmention: {\n *\t \t\t\t\tdropdownLimit: Infinity,\n *\t\t\t\t\tfeeds: [\n *\t\t\t\t\t\t{ ... }\n *\t\t\t\t\t\t...\n * \t\t\t\t\t]\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * @member {Number} module:mention/mention~MentionConfig#dropdownLimit\n * @default 10\n */\n\n/**\n * The mention feed descriptor. Used in {@link module:mention/mention~MentionConfig `config.mention`}.\n *\n * See {@link module:mention/mention~MentionConfig} to learn more.\n *\n *\t\t// Static configuration.\n *\t\tconst mentionFeedPeople = {\n *\t\t\tmarker: '@',\n *\t\t\tfeed: [ '@Alice', '@Bob', ... ],\n *\t\t\tminimumCharacters: 2\n *\t\t};\n *\n *\t\t// Simple synchronous callback.\n *\t\tconst mentionFeedTags = {\n *\t\t\tmarker: '#',\n *\t\t\tfeed: searchString => {\n *\t\t\t\treturn tags\n *\t\t\t\t\t// Filter the tags list.\n *\t\t\t\t\t.filter( tag => {\n *\t\t\t\t\t\treturn tag.toLowerCase().includes( queryText.toLowerCase() );\n *\t\t\t\t\t} )\n *\t\t\t}\n * \t\t};\n *\n *\t\tconst tags = [ 'wysiwyg', 'rte', 'rich-text-edior', 'collaboration', 'real-time', ... ];\n *\n *\t\t// Asynchronous callback.\n *\t\tconst mentionFeedPlaceholders = {\n *\t\t\tmarker: '$',\n *\t\t\tfeed: searchString => {\n *\t\t\t\treturn getMatchingPlaceholders( searchString );\n *\t\t\t}\n * \t\t};\n *\n *\t\tfunction getMatchingPlaceholders( searchString ) {\n *\t\t\treturn new Promise( resolve => {\n *\t\t\t\tdoSomeXHRQuery( result => {\n *\t\t\t\t\t// console.log( result );\n *\t\t\t\t\t// -> [ '$name', '$surname', '$postal', ... ]\n *\n *\t\t\t\t\tresolve( result );\n * \t\t\t\t} );\n *\t\t\t} );\n *\t\t}\n *\n * @typedef {Object} module:mention/mention~MentionFeed\n * @property {String} [marker] The character which triggers autocompletion for mention. It must be a single character.\n * @property {Array.<module:mention/mention~MentionFeedItem>|Function} feed Autocomplete items. Provide an array for\n * a static configuration (the mention feature will show matching items automatically) or a function which returns an array of\n * matching items (directly, or via a promise). If a function is passed, it is executed in the context of the editor instance.\n * @property {Number} [minimumCharacters=0] Specifies after how many characters the autocomplete panel should be shown.\n * @property {Function} [itemRenderer] A function that renders a {@link module:mention/mention~MentionFeedItem}\n * to the autocomplete panel.\n */\n\n/**\n * The mention feed item. It may be defined as a string or a plain object.\n *\n * When defining a feed item as a plain object, the `id` property is obligatory. Additional properties\n * can be used when customizing the mention feature bahavior\n * (see {@glink features/mentions#customizing-the-autocomplete-list \"Customizing the autocomplete list\"}\n * and {@glink features/mentions#customizing-the-output \"Customizing the output\"} sections).\n *\n *\t\tClassicEditor\n *\t\t\t.create( editorElement, {\n *\t\t\t\tplugins: [ Mention, ... ],\n *\t\t\t\tmention: {\n *\t\t\t\t\tfeeds: [\n *\t\t\t\t\t\t// Feed items as objects.\n *\t\t\t\t\t\t{\n *\t\t\t\t\t\t\tmarker: '@',\n *\t\t\t\t\t\t\tfeed: [\n *\t\t\t\t\t\t\t\t{\n *\t\t\t\t\t\t\t\t\tid: '@Barney',\n *\t\t\t\t\t\t\t\t\tfullName: 'Barney Bloom'\n *\t\t\t\t\t\t\t\t},\n *\t\t\t\t\t\t\t\t{\n *\t\t\t\t\t\t\t\t\tid: '@Lily',\n *\t\t\t\t\t\t\t\t\tfullName: 'Lily Smith'\n *\t\t\t\t\t\t\t\t},\n *\t\t\t\t\t\t\t\t{\n *\t\t\t\t\t\t\t\t\tid: '@Marshall',\n *\t\t\t\t\t\t\t\t\tfullName: 'Marshall McDonald'\n *\t\t\t\t\t\t\t\t},\n *\t\t\t\t\t\t\t\t{\n *\t\t\t\t\t\t\t\t\tid: '@Robin',\n *\t\t\t\t\t\t\t\t\tfullName: 'Robin Hood'\n *\t\t\t\t\t\t\t\t},\n *\t\t\t\t\t\t\t\t{\n *\t\t\t\t\t\t\t\t\tid: '@Ted',\n *\t\t\t\t\t\t\t\t\tfullName: 'Ted Cruze'\n *\t\t\t\t\t\t\t\t},\n *\t\t\t\t\t\t\t\t// ...\n *\t\t\t\t\t\t\t]\n *\t\t\t\t\t\t},\n *\n *\t\t\t\t\t\t// Feed items as plain strings.\n *\t\t\t\t\t\t{\n *\t\t\t\t\t\t\tmarker: '#',\n *\t\t\t\t\t\t\tfeed: [ 'wysiwyg', 'rte', 'rich-text-edior', 'collaboration', 'real-time', ... ]\n *\t\t\t\t\t\t},\n * \t\t\t\t\t]\n *\t\t\t\t}\n *\t\t\t} )\n *\t\t\t.then( ... )\n *\t\t\t.catch( ... );\n *\n * @typedef {Object|String} module:mention/mention~MentionFeedItem\n * @property {String} id A unique ID of the mention. It must start with the marker character.\n * @property {String} [text] Text inserted into the editor when creating a mention.\n */\n\n/**\n * Represents a mention in the model.\n *\n * See {@link module:mention/mention~Mention#toMentionAttribute `Mention#toMentionAttribute()`}.\n *\n * @interface module:mention/mention~MentionAttribute\n * @property {String} id The ID of a mention. It identifies the mention item in the mention feed. There can be multiple mentions\n * in the document with the same ID (e.g. the same hashtag being mentioned).\n * @property {String} uid A unique ID of this mention instance. Should be passed as an `option.id` when using\n * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement writer.createAttributeElement()}.\n * @property {String} _text Helper property that stores the text of the inserted mention. Used for detecting a broken mention\n * in the editing area.\n */\n","/**\n * https://github.com/zadam/trilium/issues/978\n */\nexport default function indentBlockShortcutPlugin(editor) {\n\teditor.keystrokes.set( 'Tab', ( data, cancel ) => {\n\t\tconst command = editor.commands.get( 'indentBlock' );\n\n\t\tif ( command.isEnabled && !isInTable() ) {\n\t\t\tcommand.execute();\n\t\t\tcancel();\n\t\t}\n\t} );\n\n\teditor.keystrokes.set( 'Shift+Tab', ( data, cancel ) => {\n\t\tconst command = editor.commands.get( 'outdentBlock' );\n\n\t\tif ( command.isEnabled && !isInTable() ) {\n\t\t\tcommand.execute();\n\t\t\tcancel();\n\t\t}\n\t} );\n\n\t// in table TAB should switch cells\n\tfunction isInTable() {\n\t\tlet el = editor.model.document.selection.getFirstPosition();\n\n\t\twhile (el) {\n\t\t\tif (el.name === 'tableCell') {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tel = el.parent;\n\t\t}\n\n\t\treturn false;\n\t}\n}\n","// A simple plugin that extends the remove format feature to consider 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\ No newline at end of file
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All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content blockquote {\\n\\t/* See #12 */\\n\\toverflow: hidden;\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-block-quote/issues/15 */\\n\\tpadding-right: 1.5em;\\n\\tpadding-left: 1.5em;\\n\\n\\tmargin-left: 0;\\n\\tmargin-right: 0;\\n\\tfont-style: italic;\\n\\tborder-left: solid 5px hsl(0, 0%, 80%);\\n}\\n\\n.ck-content[dir=\\\"rtl\\\"] blockquote {\\n\\tborder-left: 0;\\n\\tborder-right: solid 5px hsl(0, 0%, 80%);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-find-result{background:var(--ck-color-highlight-background);color:var(--ck-color-text)}.ck-find-result_selected{background:#ff9633}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-find-and-replace/theme/findandreplace.css\"],\"names\":[],\"mappings\":\"AAKA,gBACC,+CAAgD,CAChD,0BACD,CAEA,yBACC,kBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-find-result {\\n\\tbackground: var(--ck-color-highlight-background);\\n\\tcolor: var(--ck-color-text);\\n}\\n\\n.ck-find-result_selected {\\n\\tbackground: hsl(29, 100%, 60%);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-find-and-replace-form{max-width:100%}.ck.ck-find-and-replace-form fieldset{display:flex}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find .ck-results-counter{position:absolute}.ck.ck-find-and-replace-form{width:400px}.ck.ck-find-and-replace-form:focus{outline:none}.ck.ck-find-and-replace-form fieldset{align-content:stretch;align-items:center;border:0;flex-direction:row;flex-wrap:nowrap;margin:0;padding:var(--ck-spacing-large)}.ck.ck-find-and-replace-form fieldset>.ck-button{flex:0 0 auto}[dir=ltr] .ck.ck-find-and-replace-form fieldset>*+*{margin-left:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-find-and-replace-form fieldset>*+*{margin-right:var(--ck-spacing-standard)}.ck.ck-find-and-replace-form fieldset .ck-labeled-field-view{flex:1 1 auto}.ck.ck-find-and-replace-form fieldset .ck-labeled-field-view .ck-input{min-width:50px;width:100%}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find{align-items:flex-start}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button-find{font-weight:700}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button-find .ck-button__label{padding-left:var(--ck-spacing-large);padding-right:var(--ck-spacing-large)}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button-prev>.ck-icon{transform:rotate(90deg)}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button-next>.ck-icon{transform:rotate(-90deg)}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find .ck-results-counter{top:50%;transform:translateY(-50%)}[dir=ltr] .ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find .ck-results-counter{right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find .ck-results-counter{left:var(--ck-spacing-standard)}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find .ck-results-counter{color:var(--ck-color-base-border)}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace{flex-wrap:wrap;justify-content:flex-end;margin-top:calc(var(--ck-spacing-large)*-1)}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-labeled-field-view{margin-bottom:var(--ck-spacing-large)}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-options-dropdown{margin-left:0;margin-right:auto}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-labeled-field-view,.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-labeled-field-view .ck-input{width:100%}@media screen and (max-width:600px){.ck.ck-find-and-replace-form{width:300px}.ck.ck-find-and-replace-form fieldset{flex-wrap:wrap}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find .ck-labeled-field-view{flex:1 0 auto;margin-bottom:var(--ck-spacing-standard);width:100%}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button{text-align:center}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type{flex:1 1 auto}[dir=ltr] .ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type{margin-left:0}[dir=rtl] .ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type{margin-right:0}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__find>.ck-button:first-of-type .ck-button__label{text-align:center;width:100%}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>:not(.ck-labeled-field-view){flex:1 1 auto}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-dropdown:not(.ck-labeled-field-view){flex-grow:0}.ck.ck-find-and-replace-form fieldset.ck-find-and-replace-form__replace>.ck-button:not(.ck-labeled-field-view)>.ck-button__label{text-align:center;width:100%}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-find-and-replace/theme/findandreplaceform.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-find-and-replace/findandreplaceform.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\"],\"names\":[],\"mappings\":\"AAKA,6BACC,cAUD,CARC,sCACC,YAMD,CAHC,yFACC,iBACD,CCNF,6BACC,WAyGD,CAnGC,mCACC,YACD,CAEA,sCAIC,qBAAsB,CADtB,kBAAmB,CAInB,QAAS,CANT,kBAAmB,CACnB,gBAAiB,CAMjB,QAAS,CAFT,+BAwFD,CApFC,iDACC,aACD,CAGC,oDACC,sCACD,CAIA,oDACC,uCACD,CAGD,6DACC,aAMD,CAJC,uEAEC,cAAe,CADf,UAED,CAID,qEAEC,sBAkCD,CAhCC,qFACC,eAOD,CAJC,uGACC,oCAAqC,CACrC,qCACD,CAGD,8FACC,uBACD,CAEA,8FACC,wBACD,CAEA,yFACC,OAAQ,CACR,0BAWD,CAbA,mGAKE,gCAQF,CAbA,mGASE,+BAIF,CAbA,yFAYC,iCACD,CAID,wEACC,cAAe,CACf,wBAAyB,CACzB,2CAeD,CAbC,+FACC,qCACD,CAEA,6FAEC,aAAc,CADd,iBAED,CAEA,wMAEC,UACD,CCzGF,oCD+GA,6BACC,WAiDD,CA/CC,sCACC,cA6CD,CAzCE,4FACC,aAAc,CAEd,wCAAyC,CADzC,UAED,CAEA,gFACC,iBAkBD,CAhBC,8FACC,aAcD,CAfA,wGAIE,aAWF,CAfA,wGAQE,cAOF,CAJC,gHAEC,iBAAkB,CADlB,UAED,CAMH,qGACC,aAUD,CARC,iHACC,WACD,CAEA,iIAEC,iBAAkB,CADlB,UAED,CC5JH\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-find-and-replace-form {\\n\\tmax-width: 100%;\\n\\n\\t& fieldset {\\n\\t\\tdisplay: flex;\\n\\n\\t\\t/* The find fieldset */\\n\\t\\t&.ck-find-and-replace-form__find .ck-results-counter {\\n\\t\\t\\tposition: absolute;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-find-and-replace-form {\\n\\twidth: 400px;\\n\\n\\t/*\\n\\t * The <form> needs tabindex=\\\"-1\\\" for proper Esc handling after being clicked\\n\\t * but the side effect is that this creates a nasty focus outline in some browsers.\\n\\t */\\n\\t&:focus {\\n\\t\\toutline: none;\\n\\t}\\n\\n\\t& fieldset {\\n\\t\\tflex-direction: row;\\n\\t\\tflex-wrap: nowrap;\\n\\t\\talign-items: center;\\n\\t\\talign-content: stretch;\\n\\n\\t\\tpadding: var(--ck-spacing-large);\\n\\t\\tborder: 0;\\n\\t\\tmargin: 0;\\n\\n\\t\\t& > .ck-button {\\n\\t\\t\\tflex: 0 0 auto;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t& > * + * {\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t& > * + * {\\n\\t\\t\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tflex: 1 1 auto;\\n\\n\\t\\t\\t& .ck-input {\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\tmin-width: 50px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* The find fieldset */\\n\\t\\t&.ck-find-and-replace-form__find {\\n\\t\\t\\t/* To display all controls in line when there's an error under the input */\\n\\t\\t\\talign-items: flex-start;\\n\\n\\t\\t\\t& > .ck-button-find {\\n\\t\\t\\t\\tfont-weight: bold;\\n\\n\\t\\t\\t\\t/* Beef the find button up a little. It's the main action button in the form */\\n\\t\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\t\\tpadding-left: var(--ck-spacing-large);\\n\\t\\t\\t\\t\\tpadding-right: var(--ck-spacing-large);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-button-prev > .ck-icon {\\n\\t\\t\\t\\ttransform: rotate(90deg);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-button-next > .ck-icon {\\n\\t\\t\\t\\ttransform: rotate(-90deg);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-results-counter {\\n\\t\\t\\t\\ttop: 50%;\\n\\t\\t\\t\\ttransform: translateY(-50%);\\n\\n\\t\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\t\\tright: var(--ck-spacing-standard);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\t\\tleft: var(--ck-spacing-standard);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\tcolor: var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* The replace fieldset */\\n\\t\\t&.ck-find-and-replace-form__replace {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t\\tjustify-content: flex-end;\\n\\t\\t\\tmargin-top: calc( -1 * var(--ck-spacing-large) );\\n\\n\\t\\t\\t& > .ck-labeled-field-view {\\n\\t\\t\\t\\tmargin-bottom: var(--ck-spacing-large);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-options-dropdown {\\n\\t\\t\\t\\tmargin-right: auto;\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-labeled-field-view,\\n\\t\\t\\t& > .ck-labeled-field-view .ck-input {\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n@mixin ck-media-phone {\\n\\t.ck.ck-find-and-replace-form {\\n\\t\\twidth: 300px;\\n\\n\\t\\t& fieldset {\\n\\t\\t\\tflex-wrap: wrap;\\n\\n\\t\\t\\t/* The find fieldset */\\n\\t\\t\\t&.ck-find-and-replace-form__find {\\n\\t\\t\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\t\\t\\tflex: 1 0 auto;\\n\\t\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\t\\tmargin-bottom: var(--ck-spacing-standard);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t& > .ck-button {\\n\\t\\t\\t\\t\\ttext-align: center;\\n\\n\\t\\t\\t\\t\\t&:first-of-type {\\n\\t\\t\\t\\t\\t\\tflex: 1 1 auto;\\n\\n\\t\\t\\t\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\t\\t\\t\\tmargin-right: 0;\\n\\t\\t\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\t\\t\\t\\ttext-align: center;\\n\\t\\t\\t\\t\\t\\t}\\n\\t\\t\\t\\t\\t}\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t/* The replace fieldset */\\n\\t\\t\\t&.ck-find-and-replace-form__replace > :not(.ck-labeled-field-view) {\\n\\t\\t\\t\\tflex: 1 1 auto;\\n\\n\\t\\t\\t\\t&.ck-dropdown {\\n\\t\\t\\t\\t\\tflex-grow: 0;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t&.ck-button > .ck-button__label {\\n\\t\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\t\\ttext-align: center;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-link_selected{background:var(--ck-color-link-selected-background)}.ck .ck-link_selected span.image-inline{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background)}.ck .ck-fake-link-selection{background:var(--ck-color-link-fake-selection)}.ck .ck-fake-link-selection_collapsed{border-right:1px solid var(--ck-color-base-text);height:100%;margin-right:-1px;outline:1px solid hsla(0,0%,100%,.5)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/link.css\"],\"names\":[],\"mappings\":\"AAMA,sBACC,mDAMD,CAHC,wCACC,yFACD,CAOD,4BACC,8CACD,CAGA,sCAEC,gDAAiD,CADjD,WAAY,CAEZ,iBAAkB,CAClB,oCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* Class added to span element surrounding currently selected link. */\\n.ck .ck-link_selected {\\n\\tbackground: var(--ck-color-link-selected-background);\\n\\n\\t/* Give linked inline images some outline to let the user know they are also part of the link. */\\n\\t& span.image-inline {\\n\\t\\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-link-selected-background);\\n\\t}\\n}\\n\\n/*\\n * Classes used by the \\\"fake visual selection\\\" displayed in the content when an input\\n * in the link UI has focus (the browser does not render the native selection in this state).\\n */\\n.ck .ck-fake-link-selection {\\n\\tbackground: var(--ck-color-link-fake-selection);\\n}\\n\\n/* A collapsed fake visual selection. */\\n.ck .ck-fake-link-selection_collapsed {\\n\\theight: 100%;\\n\\tborder-right: 1px solid var(--ck-color-base-text);\\n\\tmargin-right: -1px;\\n\\toutline: solid 1px hsla(0, 0%, 100%, .5);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-link-actions{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-link-actions .ck-link-actions__preview{display:inline-block}.ck.ck-link-actions .ck-link-actions__preview .ck-button__label{overflow:hidden}@media screen and (max-width:600px){.ck.ck-link-actions{flex-wrap:wrap}.ck.ck-link-actions .ck-link-actions__preview{flex-basis:100%}.ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){flex-basis:50%}}.ck.ck-link-actions .ck-button.ck-link-actions__preview{padding-left:0;padding-right:0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{color:var(--ck-color-link-default);cursor:pointer;max-width:var(--ck-input-width);min-width:3em;padding:0 var(--ck-spacing-medium);text-align:center;text-overflow:ellipsis}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label:hover{text-decoration:underline}.ck.ck-link-actions .ck-button.ck-link-actions__preview,.ck.ck-link-actions .ck-button.ck-link-actions__preview:active,.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus,.ck.ck-link-actions .ck-button.ck-link-actions__preview:hover{background:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:active{box-shadow:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus .ck-button__label{text-decoration:underline}[dir=ltr] .ck.ck-link-actions .ck-button:not(:first-child),[dir=rtl] .ck.ck-link-actions .ck-button:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-link-actions .ck-button.ck-link-actions__preview{margin:var(--ck-spacing-standard) var(--ck-spacing-standard) 0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{max-width:100%;min-width:0}[dir=ltr] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview),[dir=rtl] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){margin-left:0}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkactions.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkactions.css\"],\"names\":[],\"mappings\":\"AAOA,oBACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,8CACC,oBAKD,CAHC,gEACC,eACD,CCXD,oCDCD,oBAcE,cAUF,CARE,8CACC,eACD,CAEA,8DACC,cACD,CCrBD,CCIA,wDACC,cAAe,CACf,eAmCD,CAjCC,0EAEC,kCAAmC,CAEnC,cAAe,CAIf,+BAAgC,CAChC,aAAc,CARd,kCAAmC,CASnC,iBAAkB,CAPlB,sBAYD,CAHC,gFACC,yBACD,CAGD,mPAIC,eACD,CAEA,+DACC,eACD,CAGC,gFACC,yBACD,CAWD,qHACC,sCACD,CDtDD,oCC0DC,wDACC,8DAMD,CAJC,0EAEC,cAAe,CADf,WAED,CAGD,gJAME,aAEF,CDzED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-link-actions {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\n\\t& .ck-link-actions__preview {\\n\\t\\tdisplay: inline-block;\\n\\n\\t\\t& .ck-button__label {\\n\\t\\t\\toverflow: hidden;\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tflex-wrap: wrap;\\n\\n\\t\\t& .ck-link-actions__preview {\\n\\t\\t\\tflex-basis: 100%;\\n\\t\\t}\\n\\n\\t\\t& .ck-button:not(.ck-link-actions__preview) {\\n\\t\\t\\tflex-basis: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_unselectable.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n@import \\\"../mixins/_focus.css\\\";\\n@import \\\"../mixins/_shadow.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-link-actions {\\n\\t& .ck-button.ck-link-actions__preview {\\n\\t\\tpadding-left: 0;\\n\\t\\tpadding-right: 0;\\n\\n\\t\\t& .ck-button__label {\\n\\t\\t\\tpadding: 0 var(--ck-spacing-medium);\\n\\t\\t\\tcolor: var(--ck-color-link-default);\\n\\t\\t\\ttext-overflow: ellipsis;\\n\\t\\t\\tcursor: pointer;\\n\\n\\t\\t\\t/* Match the box model of the link editor form's input so the balloon\\n\\t\\t\\tdoes not change width when moving between actions and the form. */\\n\\t\\t\\tmax-width: var(--ck-input-width);\\n\\t\\t\\tmin-width: 3em;\\n\\t\\t\\ttext-align: center;\\n\\n\\t\\t\\t&:hover {\\n\\t\\t\\t\\ttext-decoration: underline;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&,\\n\\t\\t&:hover,\\n\\t\\t&:focus,\\n\\t\\t&:active {\\n\\t\\t\\tbackground: none;\\n\\t\\t}\\n\\n\\t\\t&:active {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t}\\n\\n\\t\\t&:focus {\\n\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\ttext-decoration: underline;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir ltr {\\n\\t\\t& .ck-button:not(:first-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir rtl {\\n\\t\\t& .ck-button:not(:last-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\t& .ck-button.ck-link-actions__preview {\\n\\t\\t\\tmargin: var(--ck-spacing-standard) var(--ck-spacing-standard) 0;\\n\\n\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\tmin-width: 0;\\n\\t\\t\\t\\tmax-width: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& .ck-button:not(.ck-link-actions__preview) {\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-link-form{display:flex}.ck.ck-link-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-link-form{flex-wrap:wrap}.ck.ck-link-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-link-form .ck-button{flex-basis:50%}}.ck.ck-link-form_layout-vertical{display:block}.ck.ck-link-form_layout-vertical .ck-button.ck-button-cancel,.ck.ck-link-form_layout-vertical .ck-button.ck-button-save{margin-top:var(--ck-spacing-medium)}.ck.ck-link-form_layout-vertical{min-width:var(--ck-input-width);padding:0}.ck.ck-link-form_layout-vertical .ck-labeled-field-view{margin:var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small)}.ck.ck-link-form_layout-vertical .ck-labeled-field-view .ck-input-text{min-width:0;width:100%}.ck.ck-link-form_layout-vertical>.ck-button{border-radius:0;margin:0;padding:var(--ck-spacing-standard);width:50%}.ck.ck-link-form_layout-vertical>.ck-button:not(:focus){border-top:1px solid var(--ck-color-base-border)}[dir=ltr] .ck.ck-link-form_layout-vertical>.ck-button,[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button{margin-left:0}[dir=rtl] .ck.ck-link-form_layout-vertical>.ck-button:last-of-type{border-right:1px solid var(--ck-color-base-border)}.ck.ck-link-form_layout-vertical .ck.ck-list{margin:var(--ck-spacing-standard) var(--ck-spacing-large)}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton{padding:0;width:100%}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton:hover{background:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-link/theme/linkform.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-link/linkform.css\"],\"names\":[],\"mappings\":\"AAOA,iBACC,YAiBD,CAfC,2BACC,YACD,CCNA,oCDCD,iBAQE,cAUF,CARE,wCACC,eACD,CAEA,4BACC,cACD,CCfD,CDuBD,iCACC,aAYD,CALE,wHAEC,mCACD,CE/BF,iCAEC,+BAAgC,CADhC,SAgDD,CA7CC,wDACC,8EAMD,CAJC,uEACC,WAAY,CACZ,UACD,CAGD,4CAIC,eAAgB,CAFhB,QAAS,CADT,kCAAmC,CAEnC,SAkBD,CAfC,wDACC,gDACD,CARD,4GAeE,aAMF,CAJE,mEACC,kDACD,CAKF,6CACC,yDAUD,CARC,wEACC,SAAU,CACV,UAKD,CAHC,8EACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-link-form {\\n\\tdisplay: flex;\\n\\n\\t& .ck-label {\\n\\t\\tdisplay: none;\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tflex-wrap: wrap;\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tflex-basis: 100%;\\n\\t\\t}\\n\\n\\t\\t& .ck-button {\\n\\t\\t\\tflex-basis: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Style link form differently when manual decorators are available.\\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\\n */\\n.ck.ck-link-form_layout-vertical {\\n\\tdisplay: block;\\n\\n\\t/*\\n\\t * Whether the form is in the responsive mode or not, if there are decorator buttons\\n\\t * keep the top margin of action buttons medium.\\n\\t */\\n\\t& .ck-button {\\n\\t\\t&.ck-button-save,\\n\\t\\t&.ck-button-cancel {\\n\\t\\t\\tmargin-top: var(--ck-spacing-medium);\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n/*\\n * Style link form differently when manual decorators are available.\\n * See: https://github.com/ckeditor/ckeditor5-link/issues/186.\\n */\\n.ck.ck-link-form_layout-vertical {\\n\\tpadding: 0;\\n\\tmin-width: var(--ck-input-width);\\n\\n\\t& .ck-labeled-field-view {\\n\\t\\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) var(--ck-spacing-small);\\n\\n\\t\\t& .ck-input-text {\\n\\t\\t\\tmin-width: 0;\\n\\t\\t\\twidth: 100%;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-button {\\n\\t\\tpadding: var(--ck-spacing-standard);\\n\\t\\tmargin: 0;\\n\\t\\twidth: 50%;\\n\\t\\tborder-radius: 0;\\n\\n\\t\\t&:not(:focus) {\\n\\t\\t\\tborder-top: 1px solid var(--ck-color-base-border);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tmargin-left: 0;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t&:last-of-type {\\n\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/* Using additional `.ck` class for stronger CSS specificity than `.ck.ck-link-form > :not(:first-child)`. */\\n\\t& .ck.ck-list {\\n\\t\\tmargin: var(--ck-spacing-standard) var(--ck-spacing-large);\\n\\n\\t\\t& .ck-button.ck-switchbutton {\\n\\t\\t\\tpadding: 0;\\n\\t\\t\\twidth: 100%;\\n\\n\\t\\t\\t&:hover {\\n\\t\\t\\t\\tbackground: none;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-mention-background:rgba(153,0,48,.1);--ck-color-mention-text:#990030}.ck-content .mention{background:var(--ck-color-mention-background);color:var(--ck-color-mention-text)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-mention/mention.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,+CAAwD,CACxD,+BACD,CAEA,qBACC,6CAA8C,CAC9C,kCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-mention-background: hsla(341, 100%, 30%, 0.1);\\n\\t--ck-color-mention-text: hsl(341, 100%, 30%);\\n}\\n\\n.ck-content .mention {\\n\\tbackground: var(--ck-color-mention-background);\\n\\tcolor: var(--ck-color-mention-text);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-mention-list-max-height:300px}.ck.ck-mentions{max-height:var(--ck-mention-list-max-height);overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain}.ck.ck-mentions>.ck-list__item{flex-shrink:0;overflow:hidden}\", \"\",{\"version\":3,\"sources\":[\"webpack://./node_modules/@ckeditor/ckeditor5-mention/theme/mentionui.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,kCACD,CAEA,gBACC,4CAA6C,CAM7C,iBAAkB,CAJlB,eAAgB,CAMhB,2BAQD,CAJC,+BAEC,aAAc,CADd,eAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-mention-list-max-height: 300px;\\n}\\n\\n.ck.ck-mentions {\\n\\tmax-height: var(--ck-mention-list-max-height);\\n\\n\\toverflow-y: auto;\\n\\n\\t/* Prevent unnecessary horizontal scrollbar in Safari\\n\\thttps://github.com/ckeditor/ckeditor5-mention/issues/41 */\\n\\toverflow-x: hidden;\\n\\n\\toverscroll-behavior: contain;\\n\\n\\t/* Prevent unnecessary vertical scrollbar in Safari\\n\\thttps://github.com/ckeditor/ckeditor5-mention/issues/41 */\\n\\t& > .ck-list__item {\\n\\t\\toverflow: hidden;\\n\\t\\tflex-shrink: 0;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-block-toolbar-button{transform:translateX(calc(var(--ck-spacing-large)*-1))}\", \"\",{\"version\":3,\"sources\":[\"webpack://./theme/theme.css\"],\"names\":[],\"mappings\":\"AAMA,4BACC,sDACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* Give the block toolbar button some space, moving it a few pixels away from the editable area. */\\n.ck.ck-block-toolbar-button {\\n\\ttransform: translateX( calc(-1 * var(--ck-spacing-large)) );\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-editor__editable .ck.ck-clipboard-drop-target-position{display:inline;pointer-events:none;position:relative}.ck.ck-editor__editable .ck.ck-clipboard-drop-target-position span{position:absolute;width:0}.ck.ck-editor__editable .ck-widget:-webkit-drag>.ck-widget__selection-handle,.ck.ck-editor__editable .ck-widget:-webkit-drag>.ck-widget__type-around{display:none}:root{--ck-clipboard-drop-target-dot-width:12px;--ck-clipboard-drop-target-dot-height:8px;--ck-clipboard-drop-target-color:var(--ck-color-focus-border)}.ck.ck-editor__editable .ck.ck-clipboard-drop-target-position span{background:var(--ck-clipboard-drop-target-color);border:1px solid var(--ck-clipboard-drop-target-color);bottom:calc(var(--ck-clipboard-drop-target-dot-height)*-.5);margin-left:-1px;top:calc(var(--ck-clipboard-drop-target-dot-height)*-.5)}.ck.ck-editor__editable .ck.ck-clipboard-drop-target-position span:after{border-color:var(--ck-clipboard-drop-target-color) transparent transparent transparent;border-style:solid;border-width:calc(var(--ck-clipboard-drop-target-dot-height)) calc(var(--ck-clipboard-drop-target-dot-width)*.5) 0 calc(var(--ck-clipboard-drop-target-dot-width)*.5);content:\\\"\\\";display:block;height:0;left:50%;position:absolute;top:calc(var(--ck-clipboard-drop-target-dot-height)*-.5);transform:translateX(-50%);width:0}.ck.ck-editor__editable .ck-widget.ck-clipboard-drop-target-range{outline:var(--ck-widget-outline-thickness) solid var(--ck-clipboard-drop-target-color)!important}.ck.ck-editor__editable .ck-widget:-webkit-drag{zoom:.6;outline:none!important}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-clipboard/theme/clipboard.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-clipboard/clipboard.css\"],\"names\":[],\"mappings\":\"AASC,8DACC,cAAe,CAEf,mBAAoB,CADpB,iBAOD,CAJC,mEACC,iBAAkB,CAClB,OACD,CAWA,qJACC,YACD,CCzBF,MACC,yCAA0C,CAC1C,yCAA0C,CAC1C,6DACD,CAOE,mEAIC,gDAAiD,CADjD,sDAAuD,CAFvD,2DAA8D,CAI9D,gBAAiB,CAHjB,wDAqBD,CAfC,yEAWC,sFAAuF,CAEvF,kBAAmB,CADnB,qKAA0K,CAX1K,UAAW,CAIX,aAAc,CAFd,QAAS,CAIT,QAAS,CADT,iBAAkB,CAElB,wDAA2D,CAE3D,0BAA2B,CAR3B,OAYD,CA2DF,kEACC,gGACD,CAKA,gDACC,OAAS,CACT,sBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-editor__editable {\\n\\t/*\\n\\t * Vertical drop target (in text).\\n\\t */\\n\\t& .ck.ck-clipboard-drop-target-position {\\n\\t\\tdisplay: inline;\\n\\t\\tposition: relative;\\n\\t\\tpointer-events: none;\\n\\n\\t\\t& span {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\twidth: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles of the widget being dragged (its preview).\\n\\t */\\n\\t& .ck-widget:-webkit-drag {\\n\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\n\\t\\t& > .ck-widget__type-around {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-clipboard-drop-target-dot-width: 12px;\\n\\t--ck-clipboard-drop-target-dot-height: 8px;\\n\\t--ck-clipboard-drop-target-color: var(--ck-color-focus-border)\\n}\\n\\n.ck.ck-editor__editable {\\n\\t/*\\n\\t * Vertical drop target (in text).\\n\\t */\\n\\t& .ck.ck-clipboard-drop-target-position {\\n\\t\\t& span {\\n\\t\\t\\tbottom: calc(-.5 * var(--ck-clipboard-drop-target-dot-height));\\n\\t\\t\\ttop: calc(-.5 * var(--ck-clipboard-drop-target-dot-height));\\n\\t\\t\\tborder: 1px solid var(--ck-clipboard-drop-target-color);\\n\\t\\t\\tbackground: var(--ck-clipboard-drop-target-color);\\n\\t\\t\\tmargin-left: -1px;\\n\\n\\t\\t\\t/* The triangle above the marker */\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\theight: 0;\\n\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tleft: 50%;\\n\\t\\t\\t\\ttop: calc(var(--ck-clipboard-drop-target-dot-height) * -.5);\\n\\n\\t\\t\\t\\ttransform: translateX(-50%);\\n\\t\\t\\t\\tborder-color: var(--ck-clipboard-drop-target-color) transparent transparent transparent;\\n\\t\\t\\t\\tborder-width: calc(var(--ck-clipboard-drop-target-dot-height)) calc(.5 * var(--ck-clipboard-drop-target-dot-width)) 0 calc(.5 * var(--ck-clipboard-drop-target-dot-width));\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t// Horizontal drop target (between blocks).\\n\\t& .ck.ck-clipboard-drop-target-position {\\n\\t\\tdisplay: block;\\n\\t\\tposition: relative;\\n\\t\\twidth: 100%;\\n\\t\\theight: 0;\\n\\t\\tmargin: 0;\\n\\t\\ttext-align: initial;\\n\\n\\t\\t& .ck-clipboard-drop-target__line {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\twidth: 100%;\\n\\t\\t\\theight: 0;\\n\\t\\t\\tborder: 1px solid var(--ck-clipboard-drop-target-color);\\n\\t\\t\\tmargin-top: -1px;\\n\\n\\t\\t\\t&::before {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\theight: 0;\\n\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tleft: calc(-1 * var(--ck-clipboard-drop-target-dot-size));\\n\\t\\t\\t\\ttop: 0;\\n\\n\\t\\t\\t\\ttransform: translateY(-50%);\\n\\t\\t\\t\\tborder-color: transparent transparent transparent var(--ck-clipboard-drop-target-color);\\n\\t\\t\\t\\tborder-width: var(--ck-clipboard-drop-target-dot-size) 0 var(--ck-clipboard-drop-target-dot-size) calc(2 * var(--ck-clipboard-drop-target-dot-size));\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\theight: 0;\\n\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tright: calc(-1 * var(--ck-clipboard-drop-target-dot-size));\\n\\t\\t\\t\\ttop: 0;\\n\\n\\t\\t\\t\\ttransform: translateY(-50%);\\n\\t\\t\\t\\tborder-color: transparent var(--ck-clipboard-drop-target-color) transparent transparent;\\n\\t\\t\\t\\tborder-width: var(--ck-clipboard-drop-target-dot-size) calc(2 * var(--ck-clipboard-drop-target-dot-size)) var(--ck-clipboard-drop-target-dot-size) 0;\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\t*/\\n\\n\\t/*\\n\\t * Styles of the widget that it a drop target.\\n\\t */\\n\\t& .ck-widget.ck-clipboard-drop-target-range {\\n\\t\\toutline: var(--ck-widget-outline-thickness) solid var(--ck-clipboard-drop-target-color) !important;\\n\\t}\\n\\n\\t/*\\n\\t * Styles of the widget being dragged (its preview).\\n\\t */\\n\\t& .ck-widget:-webkit-drag {\\n\\t\\tzoom: 0.6;\\n\\t\\toutline: none !important;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content pre{background:hsla(0,0%,78%,.3);border:1px solid #c4c4c4;border-radius:2px;color:#353535;direction:ltr;font-style:normal;min-width:200px;padding:1em;tab-size:4;text-align:left;white-space:pre-wrap}.ck-content pre code{background:unset;border-radius:0;padding:0}.ck.ck-editor__editable pre{position:relative}.ck.ck-editor__editable pre[data-language]:after{content:attr(data-language);position:absolute}:root{--ck-color-code-block-label-background:#757575}.ck.ck-editor__editable pre[data-language]:after{background:var(--ck-color-code-block-label-background);color:#fff;font-family:var(--ck-font-face);font-size:10px;line-height:16px;padding:var(--ck-spacing-tiny) var(--ck-spacing-medium);right:10px;top:-1px;white-space:nowrap}.ck.ck-code-block-dropdown .ck-dropdown__panel{max-height:250px;overflow-x:hidden;overflow-y:auto}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-code-block/theme/codeblock.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-code-block/codeblock.css\"],\"names\":[],\"mappings\":\"AAKA,gBAGC,4BAAiC,CACjC,wBAAiC,CACjC,iBAAkB,CAHlB,aAAwB,CAOxB,aAAc,CAMd,iBAAkB,CAGlB,eAAgB,CAjBhB,WAAY,CAUZ,UAAW,CAHX,eAAgB,CAIhB,oBAaD,CALC,qBACC,gBAAiB,CAEjB,eAAgB,CADhB,SAED,CAGD,4BACC,iBAMD,CAJC,iDACC,2BAA4B,CAC5B,iBACD,CCjCD,MACC,8CACD,CAEA,iDAGC,sDAAuD,CAMvD,UAAuB,CAHvB,+BAAgC,CADhC,cAAe,CAEf,gBAAiB,CACjB,uDAAwD,CANxD,UAAW,CADX,QAAS,CAST,kBACD,CAEA,+CAEC,gBAAiB,CAEjB,iBAAkB,CADlB,eAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content pre {\\n\\tpadding: 1em;\\n\\tcolor: hsl(0, 0%, 20.8%);\\n\\tbackground: hsla(0, 0%, 78%, 0.3);\\n\\tborder: 1px solid hsl(0, 0%, 77%);\\n\\tborder-radius: 2px;\\n\\n\\t/* Code block are language direction–agnostic. */\\n\\ttext-align: left;\\n\\tdirection: ltr;\\n\\n\\ttab-size: 4;\\n\\twhite-space: pre-wrap;\\n\\n\\t/* Don't inherit the style, e.g. when in a block quote. */\\n\\tfont-style: normal;\\n\\n\\t/* Don't let the code be squashed e.g. when in a table cell. */\\n\\tmin-width: 200px;\\n\\n\\t& code {\\n\\t\\tbackground: unset;\\n\\t\\tpadding: 0;\\n\\t\\tborder-radius: 0;\\n\\t}\\n}\\n\\n.ck.ck-editor__editable pre {\\n\\tposition: relative;\\n\\n\\t&[data-language]::after {\\n\\t\\tcontent: attr(data-language);\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-code-block-label-background: hsl(0, 0%, 46%);\\n}\\n\\n.ck.ck-editor__editable pre[data-language]::after {\\n\\ttop: -1px;\\n\\tright: 10px;\\n\\tbackground: var(--ck-color-code-block-label-background);\\n\\n\\tfont-size: 10px;\\n\\tfont-family: var(--ck-font-face);\\n\\tline-height: 16px;\\n\\tpadding: var(--ck-spacing-tiny) var(--ck-spacing-medium);\\n\\tcolor: hsl(0, 0%, 100%);\\n\\twhite-space: nowrap;\\n}\\n\\n.ck.ck-code-block-dropdown .ck-dropdown__panel {\\n\\t/* There could be dozens of languages available. Use scroll to prevent a 10e6px dropdown. */\\n\\tmax-height: 250px;\\n\\toverflow-y: auto;\\n\\toverflow-x: hidden;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-placeholder,.ck.ck-placeholder{position:relative}.ck .ck-placeholder:before,.ck.ck-placeholder:before{content:attr(data-placeholder);left:0;pointer-events:none;position:absolute;right:0}.ck.ck-read-only .ck-placeholder:before{display:none}.ck.ck-reset_all .ck-placeholder{position:relative}.ck .ck-placeholder:before,.ck.ck-placeholder:before{color:var(--ck-color-engine-placeholder-text);cursor:text}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-engine/theme/placeholder.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-engine/placeholder.css\"],\"names\":[],\"mappings\":\"AAMA,uCAEC,iBAWD,CATC,qDAIC,8BAA+B,CAF/B,MAAO,CAKP,mBAAoB,CANpB,iBAAkB,CAElB,OAKD,CAKA,wCACC,YACD,CAQD,iCACC,iBACD,CC5BC,qDAEC,6CAA8C,CAD9C,WAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* See ckeditor/ckeditor5#936. */\\n.ck.ck-placeholder,\\n.ck .ck-placeholder {\\n\\tposition: relative;\\n\\n\\t&::before {\\n\\t\\tposition: absolute;\\n\\t\\tleft: 0;\\n\\t\\tright: 0;\\n\\t\\tcontent: attr(data-placeholder);\\n\\n\\t\\t/* See ckeditor/ckeditor5#469. */\\n\\t\\tpointer-events: none;\\n\\t}\\n}\\n\\n/* See ckeditor/ckeditor5#1987. */\\n.ck.ck-read-only .ck-placeholder {\\n\\t&::before {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\\n/*\\n * Rules for the `ck-placeholder` are loaded before the rules for `ck-reset_all` in the base CKEditor 5 DLL build.\\n * This fix overwrites the incorrectly set `position: static` from `ck-reset_all`.\\n * See https://github.com/ckeditor/ckeditor5/issues/11418.\\n */\\n.ck.ck-reset_all .ck-placeholder {\\n\\tposition: relative;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* See ckeditor/ckeditor5#936. */\\n.ck.ck-placeholder, .ck .ck-placeholder {\\n\\t&::before {\\n\\t\\tcursor: text;\\n\\t\\tcolor: var(--ck-color-engine-placeholder-text);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-editor__editable span[data-ck-unsafe-element]{display:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-engine/theme/renderer.css\"],\"names\":[],\"mappings\":\"AAMA,qDACC,YACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* Elements marked by the Renderer as hidden should be invisible in the editor. */\\n.ck.ck-editor__editable span[data-ck-unsafe-element] {\\n\\tdisplay: none;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-button.ck-color-table__remove-color{align-items:center;display:flex;width:100%}label.ck.ck-color-grid__label{font-weight:unset}.ck .ck-button.ck-color-table__remove-color{border-bottom-left-radius:0;border-bottom-right-radius:0;padding:calc(var(--ck-spacing-standard)/2) var(--ck-spacing-standard)}.ck .ck-button.ck-color-table__remove-color:not(:focus){border-bottom:1px solid var(--ck-color-base-border)}[dir=ltr] .ck .ck-button.ck-color-table__remove-color .ck.ck-icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck .ck-button.ck-color-table__remove-color .ck.ck-icon{margin-left:var(--ck-spacing-standard)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-font/theme/fontcolor.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-font/fontcolor.css\"],\"names\":[],\"mappings\":\"AAKA,4CAEC,kBAAmB,CADnB,YAAa,CAEb,UACD,CAEA,8BACC,iBACD,CCNA,4CAEC,2BAA4B,CAC5B,4BAA6B,CAF7B,qEAiBD,CAbC,wDACC,mDACD,CAEA,kEAEE,uCAMF,CARA,kEAME,sCAEF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-button.ck-color-table__remove-color {\\n\\tdisplay: flex;\\n\\talign-items: center;\\n\\twidth: 100%;\\n}\\n\\nlabel.ck.ck-color-grid__label {\\n\\tfont-weight: unset;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck .ck-button.ck-color-table__remove-color {\\n\\tpadding: calc(var(--ck-spacing-standard) / 2 ) var(--ck-spacing-standard);\\n\\tborder-bottom-left-radius: 0;\\n\\tborder-bottom-right-radius: 0;\\n\\n\\t&:not(:focus) {\\n\\t\\tborder-bottom: 1px solid var(--ck-color-base-border);\\n\\t}\\n\\n\\t& .ck.ck-icon {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n}\\n\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .text-tiny{font-size:.7em}.ck-content .text-small{font-size:.85em}.ck-content .text-big{font-size:1.4em}.ck-content .text-huge{font-size:1.8em}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-font/theme/fontsize.css\"],\"names\":[],\"mappings\":\"AAUC,uBACC,cACD,CAEA,wBACC,eACD,CAEA,sBACC,eACD,CAEA,uBACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* The values should be synchronized with the \\\"FONT_SIZE_PRESET_UNITS\\\" object in the \\\"/src/fontsize/utils.js\\\" file. */\\n\\n/* Styles should be prefixed with the `.ck-content` class.\\nSee https://github.com/ckeditor/ckeditor5/issues/6636 */\\n.ck-content {\\n\\t& .text-tiny {\\n\\t\\tfont-size: .7em;\\n\\t}\\n\\n\\t& .text-small {\\n\\t\\tfont-size: .85em;\\n\\t}\\n\\n\\t& .text-big {\\n\\t\\tfont-size: 1.4em;\\n\\t}\\n\\n\\t& .text-huge {\\n\\t\\tfont-size: 1.8em;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-heading_heading1{font-size:20px}.ck.ck-heading_heading2{font-size:17px}.ck.ck-heading_heading3{font-size:14px}.ck[class*=ck-heading_heading]{font-weight:700}.ck.ck-dropdown.ck-heading-dropdown .ck-dropdown__button .ck-button__label{width:8em}.ck.ck-dropdown.ck-heading-dropdown .ck-dropdown__panel .ck-list__item{min-width:18em}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-heading/theme/heading.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-heading/heading.css\"],\"names\":[],\"mappings\":\"AAKA,wBACC,cACD,CAEA,wBACC,cACD,CAEA,wBACC,cACD,CAEA,+BACC,eACD,CCZC,2EACC,SACD,CAEA,uEACC,cACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-heading_heading1 {\\n\\tfont-size: 20px;\\n}\\n\\n.ck.ck-heading_heading2 {\\n\\tfont-size: 17px;\\n}\\n\\n.ck.ck-heading_heading3 {\\n\\tfont-size: 14px;\\n}\\n\\n.ck[class*=\\\"ck-heading_heading\\\"] {\\n\\tfont-weight: bold;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/* Resize dropdown's button label. */\\n.ck.ck-dropdown.ck-heading-dropdown {\\n\\t& .ck-dropdown__button .ck-button__label {\\n\\t\\twidth: 8em;\\n\\t}\\n\\n\\t& .ck-dropdown__panel .ck-list__item {\\n\\t\\tmin-width: 18em;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-editor__editable .ck-horizontal-line{display:flow-root}.ck-content hr{background:#dedede;border:0;height:4px;margin:15px 0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-horizontal-line/theme/horizontalline.css\"],\"names\":[],\"mappings\":\"AAMA,yCAEC,iBACD,CAEA,eAGC,kBAA2B,CAC3B,QAAS,CAFT,UAAW,CADX,aAID\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n\\n.ck-editor__editable .ck-horizontal-line {\\n\\t/* Necessary to render properly next to floated objects, e.g. side image case. */\\n\\tdisplay: flow-root;\\n}\\n\\n.ck-content hr {\\n\\tmargin: 15px 0;\\n\\theight: 4px;\\n\\tbackground: hsl(0, 0%, 87%);\\n\\tborder: 0;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .image{clear:both;display:table;margin:.9em auto;min-width:50px;text-align:center}.ck-content .image img{display:block;margin:0 auto;max-width:100%;min-width:100%}.ck-content .image-inline{align-items:flex-start;display:inline-flex;max-width:100%}.ck-content .image-inline picture{display:flex}.ck-content .image-inline img,.ck-content .image-inline picture{flex-grow:1;flex-shrink:1;max-width:100%}.ck.ck-editor__editable .image>figcaption.ck-placeholder:before{overflow:hidden;padding-left:inherit;padding-right:inherit;text-overflow:ellipsis;white-space:nowrap}.ck.ck-editor__editable .image-inline.ck-widget_selected,.ck.ck-editor__editable .image.ck-widget_selected{z-index:1}.ck.ck-editor__editable .image-inline.ck-widget_selected ::selection{display:none}.ck.ck-editor__editable td .image-inline img,.ck.ck-editor__editable th .image-inline img{max-width:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/image.css\"],\"names\":[],\"mappings\":\"AAMC,mBAEC,UAAW,CADX,aAAc,CAOd,gBAAkB,CAGlB,cAAe,CARf,iBAuBD,CAbC,uBAEC,aAAc,CAGd,aAAc,CAGd,cAAe,CAGf,cACD,CAGD,0BAYC,sBAAuB,CANvB,mBAAoB,CAGpB,cAoBD,CAdC,kCACC,YACD,CAGA,gEAGC,WAAY,CACZ,aAAc,CAGd,cACD,CAUD,gEASC,eAAgB,CARhB,oBAAqB,CACrB,qBAAsB,CAQtB,sBAAuB,CAFvB,kBAGD,CAWA,2GACC,SAUD,CAHC,qEACC,YACD,CAOA,0FACC,cACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content {\\n\\t& .image {\\n\\t\\tdisplay: table;\\n\\t\\tclear: both;\\n\\t\\ttext-align: center;\\n\\n\\t\\t/* Make sure there is some space between the content and the image. Center image by default. */\\n\\t\\t/* The first value should be equal to --ck-spacing-large variable if used in the editor context\\n\\t \\tto avoid the content jumping (See https://github.com/ckeditor/ckeditor5/issues/9825). */\\n\\t\\tmargin: 0.9em auto;\\n\\n\\t\\t/* Make sure the caption will be displayed properly (See: https://github.com/ckeditor/ckeditor5/issues/1870). */\\n\\t\\tmin-width: 50px;\\n\\n\\t\\t& img {\\n\\t\\t\\t/* Prevent unnecessary margins caused by line-height (see #44). */\\n\\t\\t\\tdisplay: block;\\n\\n\\t\\t\\t/* Center the image if its width is smaller than the content's width. */\\n\\t\\t\\tmargin: 0 auto;\\n\\n\\t\\t\\t/* Make sure the image never exceeds the size of the parent container (ckeditor/ckeditor5-ui#67). */\\n\\t\\t\\tmax-width: 100%;\\n\\n\\t\\t\\t/* Make sure the image is never smaller than the parent container (See: https://github.com/ckeditor/ckeditor5/issues/9300). */\\n\\t\\t\\tmin-width: 100%\\n\\t\\t}\\n\\t}\\n\\n\\t& .image-inline {\\n\\t\\t/*\\n\\t\\t * Normally, the .image-inline would have \\\"display: inline-block\\\" and \\\"img { width: 100% }\\\" (to follow the wrapper while resizing).\\n\\t\\t * Unfortunately, together with \\\"srcset\\\", it gets automatically stretched up to the width of the editing root.\\n\\t\\t * This strange behavior does not happen with inline-flex.\\n\\t\\t */\\n\\t\\tdisplay: inline-flex;\\n\\n\\t\\t/* While being resized, don't allow the image to exceed the width of the editing root. */\\n\\t\\tmax-width: 100%;\\n\\n\\t\\t/* This is required by Safari to resize images in a sensible way. Without this, the browser breaks the ratio. */\\n\\t\\talign-items: flex-start;\\n\\n\\t\\t/* When the picture is present it must act as a flex container to let the img resize properly */\\n\\t\\t& picture {\\n\\t\\t\\tdisplay: flex;\\n\\t\\t}\\n\\n\\t\\t/* When the picture is present, it must act like a resizable img. */\\n\\t\\t& picture,\\n\\t\\t& img {\\n\\t\\t\\t/* This is necessary for the img to span the entire .image-inline wrapper and to resize properly. */\\n\\t\\t\\tflex-grow: 1;\\n\\t\\t\\tflex-shrink: 1;\\n\\n\\t\\t\\t/* Prevents overflowing the editing root boundaries when an inline image is very wide. */\\n\\t\\t\\tmax-width: 100%;\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-editor__editable {\\n\\t/*\\n\\t * Inhertit the content styles padding of the <figcaption> in case the integration overrides `text-align: center`\\n\\t * of `.image` (e.g. to the left/right). This ensures the placeholder stays at the padding just like the native\\n\\t * caret does, and not at the edge of <figcaption>.\\n\\t */\\n\\t& .image > figcaption.ck-placeholder::before {\\n\\t\\tpadding-left: inherit;\\n\\t\\tpadding-right: inherit;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the image caption placeholder doesn't overflow the placeholder area.\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/9162.\\n\\t\\t */\\n\\t\\twhite-space: nowrap;\\n\\t\\toverflow: hidden;\\n\\t\\ttext-overflow: ellipsis;\\n\\t}\\n\\n\\n\\t/*\\n\\t * Make sure the selected inline image always stays on top of its siblings.\\n\\t * See https://github.com/ckeditor/ckeditor5/issues/9108.\\n\\t */\\n\\t& .image.ck-widget_selected {\\n\\t\\tz-index: 1;\\n\\t}\\n\\n\\t& .image-inline.ck-widget_selected {\\n\\t\\tz-index: 1;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the native browser selection style is not displayed.\\n\\t\\t * Inline image widgets have their own styles for the selected state and\\n\\t\\t * leaving this up to the browser is asking for a visual collision.\\n\\t\\t */\\n\\t\\t& ::selection {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t/* The inline image nested in the table should have its original size if not resized.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9117. */\\n\\t& td,\\n\\t& th {\\n\\t\\t& .image-inline img {\\n\\t\\t\\tmax-width: none;\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-image-caption-background:#f7f7f7;--ck-color-image-caption-text:#333;--ck-color-image-caption-highligted-background:#fd0}.ck-content .image>figcaption{background-color:var(--ck-color-image-caption-background);caption-side:bottom;color:var(--ck-color-image-caption-text);display:table-caption;font-size:.75em;outline-offset:-1px;padding:.6em;word-break:break-word}.ck.ck-editor__editable .image>figcaption.image__caption_highlighted{animation:ck-image-caption-highlight .6s ease-out}@keyframes ck-image-caption-highlight{0%{background-color:var(--ck-color-image-caption-highligted-background)}to{background-color:var(--ck-color-image-caption-background)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imagecaption.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,2CAAoD,CACpD,kCAA8C,CAC9C,mDACD,CAGA,8BAKC,yDAA0D,CAH1D,mBAAoB,CAEpB,wCAAyC,CAHzC,qBAAsB,CAMtB,eAAgB,CAChB,mBAAoB,CAFpB,YAAa,CAHb,qBAMD,CAGA,qEACC,iDACD,CAEA,sCACC,GACC,oEACD,CAEA,GACC,yDACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-image-caption-background: hsl(0, 0%, 97%);\\n\\t--ck-color-image-caption-text: hsl(0, 0%, 20%);\\n\\t--ck-color-image-caption-highligted-background: hsl(52deg 100% 50%);\\n}\\n\\n/* Content styles */\\n.ck-content .image > figcaption {\\n\\tdisplay: table-caption;\\n\\tcaption-side: bottom;\\n\\tword-break: break-word;\\n\\tcolor: var(--ck-color-image-caption-text);\\n\\tbackground-color: var(--ck-color-image-caption-background);\\n\\tpadding: .6em;\\n\\tfont-size: .75em;\\n\\toutline-offset: -1px;\\n}\\n\\n/* Editing styles */\\n.ck.ck-editor__editable .image > figcaption.image__caption_highlighted {\\n\\tanimation: ck-image-caption-highlight .6s ease-out;\\n}\\n\\n@keyframes ck-image-caption-highlight {\\n\\t0% {\\n\\t\\tbackground-color: var(--ck-color-image-caption-highligted-background);\\n\\t}\\n\\n\\t100% {\\n\\t\\tbackground-color: var(--ck-color-image-caption-background);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .image.image_resized{box-sizing:border-box;display:block;max-width:100%}.ck-content .image.image_resized img{width:100%}.ck-content .image.image_resized>figcaption{display:block}.ck.ck-editor__editable td .image-inline.image_resized img,.ck.ck-editor__editable th .image-inline.image_resized img{max-width:100%}[dir=ltr] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon{margin-left:var(--ck-spacing-standard)}.ck.ck-dropdown .ck-button.ck-resize-image-button .ck-button__label{width:4em}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageresize.css\"],\"names\":[],\"mappings\":\"AAKA,iCAQC,qBAAsB,CADtB,aAAc,CANd,cAkBD,CATC,qCAEC,UACD,CAEA,4CAEC,aACD,CAQC,sHACC,cACD,CAIF,oFACC,uCACD,CAEA,oFACC,sCACD,CAEA,oEACC,SACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content .image.image_resized {\\n\\tmax-width: 100%;\\n\\t/*\\n\\tThe `<figure>` element for resized images must not use `display:table` as browsers do not support `max-width` for it well.\\n\\tSee https://stackoverflow.com/questions/4019604/chrome-safari-ignoring-max-width-in-table/14420691#14420691 for more.\\n\\tFortunately, since we control the width, there is no risk that the image will look bad.\\n\\t*/\\n\\tdisplay: block;\\n\\tbox-sizing: border-box;\\n\\n\\t& img {\\n\\t\\t/* For resized images it is the `<figure>` element that determines the image width. */\\n\\t\\twidth: 100%;\\n\\t}\\n\\n\\t& > figcaption {\\n\\t\\t/* The `<figure>` element uses `display:block`, so `<figcaption>` also has to. */\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\\n.ck.ck-editor__editable {\\n\\t/* The resized inline image nested in the table should respect its parent size.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9117. */\\n\\t& td,\\n\\t& th {\\n\\t\\t& .image-inline.image_resized img {\\n\\t\\t\\tmax-width: 100%;\\n\\t\\t}\\n\\t}\\n}\\n\\n[dir=\\\"ltr\\\"] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon {\\n\\tmargin-right: var(--ck-spacing-standard);\\n}\\n\\n[dir=\\\"rtl\\\"] .ck.ck-button.ck-button_with-text.ck-resize-image-button .ck-button__icon {\\n\\tmargin-left: var(--ck-spacing-standard);\\n}\\n\\n.ck.ck-dropdown .ck-button.ck-resize-image-button .ck-button__label {\\n\\twidth: 4em;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-image-style-spacing:1.5em;--ck-inline-image-style-spacing:calc(var(--ck-image-style-spacing)/2)}.ck-content .image-style-block-align-left,.ck-content .image-style-block-align-right{max-width:calc(100% - var(--ck-image-style-spacing))}.ck-content .image-style-align-left,.ck-content .image-style-align-right{clear:none}.ck-content .image-style-side{float:right;margin-left:var(--ck-image-style-spacing);max-width:50%}.ck-content .image-style-align-left{float:left;margin-right:var(--ck-image-style-spacing)}.ck-content .image-style-align-center{margin-left:auto;margin-right:auto}.ck-content .image-style-align-right{float:right;margin-left:var(--ck-image-style-spacing)}.ck-content .image-style-block-align-right{margin-left:auto;margin-right:0}.ck-content .image-style-block-align-left{margin-left:0;margin-right:auto}.ck-content p+.image-style-align-left,.ck-content p+.image-style-align-right,.ck-content p+.image-style-side{margin-top:0}.ck-content .image-inline.image-style-align-left,.ck-content .image-inline.image-style-align-right{margin-bottom:var(--ck-inline-image-style-spacing);margin-top:var(--ck-inline-image-style-spacing)}.ck-content .image-inline.image-style-align-left{margin-right:var(--ck-inline-image-style-spacing)}.ck-content .image-inline.image-style-align-right{margin-left:var(--ck-inline-image-style-spacing)}.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__action:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover),.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__action:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover){background-color:var(--ck-color-button-on-background)}.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__action:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover):after,.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__action:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled):after,.ck.ck-splitbutton.ck-splitbutton_flatten:hover>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover):after{display:none}.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open:hover>.ck-splitbutton__action:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open:hover>.ck-splitbutton__arrow:not(.ck-disabled),.ck.ck-splitbutton.ck-splitbutton_flatten.ck-splitbutton_open:hover>.ck-splitbutton__arrow:not(.ck-disabled):not(:hover){background-color:var(--ck-color-button-on-hover-background)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imagestyle.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,8BAA+B,CAC/B,qEACD,CAMC,qFAEC,oDACD,CAIA,yEAEC,UACD,CAEA,8BACC,WAAY,CACZ,yCAA0C,CAC1C,aACD,CAEA,oCACC,UAAW,CACX,0CACD,CAEA,sCACC,gBAAiB,CACjB,iBACD,CAEA,qCACC,WAAY,CACZ,yCACD,CAEA,2CAEC,gBAAiB,CADjB,cAED,CAEA,0CACC,aAAc,CACd,iBACD,CAGA,6GAGC,YACD,CAGC,mGAGC,kDAAmD,CADnD,+CAED,CAEA,iDACC,iDACD,CAEA,kDACC,gDACD,CAUC,0lBAGC,qDAKD,CAHC,8nBACC,YACD,CAKD,oVAGC,2DACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-image-style-spacing: 1.5em;\\n\\t--ck-inline-image-style-spacing: calc(var(--ck-image-style-spacing) / 2);\\n}\\n\\n.ck-content {\\n\\t/* Provides a minimal side margin for the left and right aligned images, so that the user has a visual feedback\\n\\tconfirming successful application of the style if image width exceeds the editor's size.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9342 */\\n\\t& .image-style-block-align-left,\\n\\t& .image-style-block-align-right {\\n\\t\\tmax-width: calc(100% - var(--ck-image-style-spacing));\\n\\t}\\n\\n\\t/* Allows displaying multiple floating images in the same line.\\n\\tSee https://github.com/ckeditor/ckeditor5/issues/9183#issuecomment-804988132 */\\n\\t& .image-style-align-left,\\n\\t& .image-style-align-right {\\n\\t\\tclear: none;\\n\\t}\\n\\n\\t& .image-style-side {\\n\\t\\tfloat: right;\\n\\t\\tmargin-left: var(--ck-image-style-spacing);\\n\\t\\tmax-width: 50%;\\n\\t}\\n\\n\\t& .image-style-align-left {\\n\\t\\tfloat: left;\\n\\t\\tmargin-right: var(--ck-image-style-spacing);\\n\\t}\\n\\n\\t& .image-style-align-center {\\n\\t\\tmargin-left: auto;\\n\\t\\tmargin-right: auto;\\n\\t}\\n\\n\\t& .image-style-align-right {\\n\\t\\tfloat: right;\\n\\t\\tmargin-left: var(--ck-image-style-spacing);\\n\\t}\\n\\n\\t& .image-style-block-align-right {\\n\\t\\tmargin-right: 0;\\n\\t\\tmargin-left: auto;\\n\\t}\\n\\n\\t& .image-style-block-align-left {\\n\\t\\tmargin-left: 0;\\n\\t\\tmargin-right: auto;\\n\\t}\\n\\n\\t/* Simulates margin collapsing with the preceding paragraph, which does not work for the floating elements. */\\n\\t& p + .image-style-align-left,\\n\\t& p + .image-style-align-right,\\n\\t& p + .image-style-side {\\n\\t\\tmargin-top: 0;\\n\\t}\\n\\n\\t& .image-inline {\\n\\t\\t&.image-style-align-left,\\n\\t\\t&.image-style-align-right {\\n\\t\\t\\tmargin-top: var(--ck-inline-image-style-spacing);\\n\\t\\t\\tmargin-bottom: var(--ck-inline-image-style-spacing);\\n\\t\\t}\\n\\n\\t\\t&.image-style-align-left {\\n\\t\\t\\tmargin-right: var(--ck-inline-image-style-spacing);\\n\\t\\t}\\n\\n\\t\\t&.image-style-align-right {\\n\\t\\t\\tmargin-left: var(--ck-inline-image-style-spacing);\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-splitbutton {\\n\\t/* The button should display as a regular drop-down if the action button\\n\\tis forced to fire the same action as the arrow button. */\\n\\t&.ck-splitbutton_flatten {\\n\\t\\t&:hover,\\n\\t\\t&.ck-splitbutton_open {\\n\\t\\t\\t& > .ck-splitbutton__action:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled):not(:hover) {\\n\\t\\t\\t\\tbackground-color: var(--ck-color-button-on-background);\\n\\n\\t\\t\\t\\t&::after {\\n\\t\\t\\t\\t\\tdisplay: none;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&.ck-splitbutton_open:hover {\\n\\t\\t\\t& > .ck-splitbutton__action:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled),\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled):not(:hover) {\\n\\t\\t\\t\\tbackground-color: var(--ck-color-button-on-hover-background);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-image-upload-complete-icon{border-radius:50%;display:block;position:absolute;right:min(var(--ck-spacing-medium),6%);top:min(var(--ck-spacing-medium),6%);z-index:1}.ck-image-upload-complete-icon:after{content:\\\"\\\";position:absolute}:root{--ck-color-image-upload-icon:#fff;--ck-color-image-upload-icon-background:#008a00;--ck-image-upload-icon-size:20;--ck-image-upload-icon-width:2px;--ck-image-upload-icon-is-visible:clamp(0px,100% - 50px,1px)}.ck-image-upload-complete-icon{animation-delay:0ms,3s;animation-duration:.5s,.5s;animation-fill-mode:forwards,forwards;animation-name:ck-upload-complete-icon-show,ck-upload-complete-icon-hide;background:var(--ck-color-image-upload-icon-background);font-size:calc(1px*var(--ck-image-upload-icon-size));height:calc(var(--ck-image-upload-icon-is-visible)*var(--ck-image-upload-icon-size));opacity:0;overflow:hidden;width:calc(var(--ck-image-upload-icon-is-visible)*var(--ck-image-upload-icon-size))}.ck-image-upload-complete-icon:after{animation-delay:.5s;animation-duration:.5s;animation-fill-mode:forwards;animation-name:ck-upload-complete-icon-check;border-right:var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);border-top:var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);box-sizing:border-box;height:0;left:25%;opacity:0;top:50%;transform:scaleX(-1) rotate(135deg);transform-origin:left top;width:0}@keyframes ck-upload-complete-icon-show{0%{opacity:0}to{opacity:1}}@keyframes ck-upload-complete-icon-hide{0%{opacity:1}to{opacity:0}}@keyframes ck-upload-complete-icon-check{0%{height:0;opacity:1;width:0}33%{height:0;width:.3em}to{height:.45em;opacity:1;width:.3em}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageuploadicon.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-image/imageuploadicon.css\"],\"names\":[],\"mappings\":\"AAKA,+BAUC,iBAAkB,CATlB,aAAc,CACd,iBAAkB,CAOlB,sCAAwC,CADxC,oCAAsC,CAGtC,SAMD,CAJC,qCACC,UAAW,CACX,iBACD,CChBD,MACC,iCAA8C,CAC9C,+CAA4D,CAG5D,8BAA+B,CAC/B,gCAAiC,CACjC,4DACD,CAEA,+BAWC,sBAA4B,CAN5B,0BAAgC,CADhC,qCAAuC,CADvC,wEAA0E,CAD1E,uDAAwD,CAMxD,oDAAuD,CAWvD,oFAAuF,CAlBvF,SAAU,CAgBV,eAAgB,CAChB,mFA0BD,CAtBC,qCAgBC,mBAAsB,CADtB,sBAAyB,CAEzB,4BAA6B,CAH7B,4CAA6C,CAF7C,sFAAuF,CADvF,oFAAqF,CASrF,qBAAsB,CAdtB,QAAS,CAJT,QAAS,CAGT,SAAU,CADV,OAAQ,CAKR,mCAAoC,CACpC,yBAA0B,CAH1B,OAcD,CAGD,wCACC,GACC,SACD,CAEA,GACC,SACD,CACD,CAEA,wCACC,GACC,SACD,CAEA,GACC,SACD,CACD,CAEA,yCACC,GAGC,QAAS,CAFT,SAAU,CACV,OAED,CACA,IAEC,QAAS,CADT,UAED,CACA,GAGC,YAAc,CAFd,SAAU,CACV,UAED,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-image-upload-complete-icon {\\n\\tdisplay: block;\\n\\tposition: absolute;\\n\\n\\t/*\\n\\t * Smaller images should have the icon closer to the border.\\n\\t * Match the icon position with the linked image indicator brought by the link image feature.\\n\\t */\\n\\ttop: min(var(--ck-spacing-medium), 6%);\\n\\tright: min(var(--ck-spacing-medium), 6%);\\n\\tborder-radius: 50%;\\n\\tz-index: 1;\\n\\n\\t&::after {\\n\\t\\tcontent: \\\"\\\";\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-image-upload-icon: hsl(0, 0%, 100%);\\n\\t--ck-color-image-upload-icon-background: hsl(120, 100%, 27%);\\n\\n\\t/* Match the icon size with the linked image indicator brought by the link image feature. */\\n\\t--ck-image-upload-icon-size: 20;\\n\\t--ck-image-upload-icon-width: 2px;\\n\\t--ck-image-upload-icon-is-visible: clamp(0px, 100% - 50px, 1px);\\n}\\n\\n.ck-image-upload-complete-icon {\\n\\topacity: 0;\\n\\tbackground: var(--ck-color-image-upload-icon-background);\\n\\tanimation-name: ck-upload-complete-icon-show, ck-upload-complete-icon-hide;\\n\\tanimation-fill-mode: forwards, forwards;\\n\\tanimation-duration: 500ms, 500ms;\\n\\n\\t/* To make animation scalable. */\\n\\tfont-size: calc(1px * var(--ck-image-upload-icon-size));\\n\\n\\t/* Hide completed upload icon after 3 seconds. */\\n\\tanimation-delay: 0ms, 3000ms;\\n\\n\\t/*\\n\\t * Use CSS math to simulate container queries.\\n\\t * https://css-tricks.com/the-raven-technique-one-step-closer-to-container-queries/#what-about-showing-and-hiding-things\\n\\t */\\n\\toverflow: hidden;\\n\\twidth: calc(var(--ck-image-upload-icon-is-visible) * var(--ck-image-upload-icon-size));\\n\\theight: calc(var(--ck-image-upload-icon-is-visible) * var(--ck-image-upload-icon-size));\\n\\n\\t/* This is check icon element made from border-width mixed with animations. */\\n\\t&::after {\\n\\t\\t/* Because of border transformation we need to \\\"hard code\\\" left position. */\\n\\t\\tleft: 25%;\\n\\n\\t\\ttop: 50%;\\n\\t\\topacity: 0;\\n\\t\\theight: 0;\\n\\t\\twidth: 0;\\n\\n\\t\\ttransform: scaleX(-1) rotate(135deg);\\n\\t\\ttransform-origin: left top;\\n\\t\\tborder-top: var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);\\n\\t\\tborder-right: var(--ck-image-upload-icon-width) solid var(--ck-color-image-upload-icon);\\n\\n\\t\\tanimation-name: ck-upload-complete-icon-check;\\n\\t\\tanimation-duration: 500ms;\\n\\t\\tanimation-delay: 500ms;\\n\\t\\tanimation-fill-mode: forwards;\\n\\n\\t\\t/* #1095. While reset is not providing proper box-sizing for pseudoelements, we need to handle it. */\\n\\t\\tbox-sizing: border-box;\\n\\t}\\n}\\n\\n@keyframes ck-upload-complete-icon-show {\\n\\tfrom {\\n\\t\\topacity: 0;\\n\\t}\\n\\n\\tto {\\n\\t\\topacity: 1;\\n\\t}\\n}\\n\\n@keyframes ck-upload-complete-icon-hide {\\n\\tfrom {\\n\\t\\topacity: 1;\\n\\t}\\n\\n\\tto {\\n\\t\\topacity: 0;\\n\\t}\\n}\\n\\n@keyframes ck-upload-complete-icon-check {\\n\\t0% {\\n\\t\\topacity: 1;\\n\\t\\twidth: 0;\\n\\t\\theight: 0;\\n\\t}\\n\\t33% {\\n\\t\\twidth: 0.3em;\\n\\t\\theight: 0;\\n\\t}\\n\\t100% {\\n\\t\\topacity: 1;\\n\\t\\twidth: 0.3em;\\n\\t\\theight: 0.45em;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-upload-placeholder-loader{align-items:center;display:flex;justify-content:center;left:0;position:absolute;top:0}.ck .ck-upload-placeholder-loader:before{content:\\\"\\\";position:relative}:root{--ck-color-upload-placeholder-loader:#b3b3b3;--ck-upload-placeholder-loader-size:32px;--ck-upload-placeholder-image-aspect-ratio:2.8}.ck .ck-image-upload-placeholder{margin:0;width:100%}.ck .ck-image-upload-placeholder.image-inline{width:calc(var(--ck-upload-placeholder-loader-size)*2*var(--ck-upload-placeholder-image-aspect-ratio))}.ck .ck-image-upload-placeholder img{aspect-ratio:var(--ck-upload-placeholder-image-aspect-ratio)}.ck .ck-upload-placeholder-loader{height:100%;width:100%}.ck .ck-upload-placeholder-loader:before{animation:ck-upload-placeholder-loader 1s linear infinite;border-radius:50%;border-right:2px solid transparent;border-top:3px solid var(--ck-color-upload-placeholder-loader);height:var(--ck-upload-placeholder-loader-size);width:var(--ck-upload-placeholder-loader-size)}@keyframes ck-upload-placeholder-loader{to{transform:rotate(1turn)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageuploadloader.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-image/imageuploadloader.css\"],\"names\":[],\"mappings\":\"AAKA,kCAGC,kBAAmB,CADnB,YAAa,CAEb,sBAAuB,CAEvB,MAAO,CALP,iBAAkB,CAIlB,KAOD,CAJC,yCACC,UAAW,CACX,iBACD,CCXD,MACC,4CAAqD,CACrD,wCAAyC,CACzC,8CACD,CAEA,iCAGC,QAAS,CADT,UAgBD,CAbC,8CACC,sGACD,CAEA,qCAOC,4DACD,CAGD,kCAEC,WAAY,CADZ,UAWD,CARC,yCAMC,yDAA0D,CAH1D,iBAAkB,CAElB,kCAAmC,CADnC,8DAA+D,CAF/D,+CAAgD,CADhD,8CAMD,CAGD,wCACC,GACC,uBACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-upload-placeholder-loader {\\n\\tposition: absolute;\\n\\tdisplay: flex;\\n\\talign-items: center;\\n\\tjustify-content: center;\\n\\ttop: 0;\\n\\tleft: 0;\\n\\n\\t&::before {\\n\\t\\tcontent: '';\\n\\t\\tposition: relative;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-upload-placeholder-loader: hsl(0, 0%, 70%);\\n\\t--ck-upload-placeholder-loader-size: 32px;\\n\\t--ck-upload-placeholder-image-aspect-ratio: 2.8;\\n}\\n\\n.ck .ck-image-upload-placeholder {\\n\\t/* We need to control the full width of the SVG gray background. */\\n\\twidth: 100%;\\n\\tmargin: 0;\\n\\n\\t&.image-inline {\\n\\t\\twidth: calc( 2 * var(--ck-upload-placeholder-loader-size) * var(--ck-upload-placeholder-image-aspect-ratio) );\\n\\t}\\n\\n\\t& img {\\n\\t\\t/*\\n\\t\\t * This is an arbitrary aspect for a 1x1 px GIF to display to the user. Not too tall, not too short.\\n\\t\\t * There's nothing special about this number except that it should make the image placeholder look like\\n\\t\\t * a real image during this short period after the upload started and before the image was read from the\\n\\t\\t * file system (and a rich preview was loaded).\\n\\t\\t */\\n\\t\\taspect-ratio: var(--ck-upload-placeholder-image-aspect-ratio);\\n\\t}\\n}\\n\\n.ck .ck-upload-placeholder-loader {\\n\\twidth: 100%;\\n\\theight: 100%;\\n\\n\\t&::before {\\n\\t\\twidth: var(--ck-upload-placeholder-loader-size);\\n\\t\\theight: var(--ck-upload-placeholder-loader-size);\\n\\t\\tborder-radius: 50%;\\n\\t\\tborder-top: 3px solid var(--ck-color-upload-placeholder-loader);\\n\\t\\tborder-right: 2px solid transparent;\\n\\t\\tanimation: ck-upload-placeholder-loader 1s linear infinite;\\n\\t}\\n}\\n\\n@keyframes ck-upload-placeholder-loader {\\n\\tto {\\n\\t\\ttransform: rotate( 360deg );\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-editor__editable .image,.ck.ck-editor__editable .image-inline{position:relative}.ck.ck-editor__editable .image .ck-progress-bar,.ck.ck-editor__editable .image-inline .ck-progress-bar{left:0;position:absolute;top:0}.ck.ck-editor__editable .image-inline.ck-appear,.ck.ck-editor__editable .image.ck-appear{animation:fadeIn .7s}.ck.ck-editor__editable .image .ck-progress-bar,.ck.ck-editor__editable .image-inline .ck-progress-bar{background:var(--ck-color-upload-bar-background);height:2px;transition:width .1s;width:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/imageuploadprogress.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-image/imageuploadprogress.css\"],\"names\":[],\"mappings\":\"AAMC,qEAEC,iBACD,CAGA,uGAIC,MAAO,CAFP,iBAAkB,CAClB,KAED,CCRC,yFACC,oBACD,CAID,uGAIC,gDAAiD,CAFjD,UAAW,CAGX,oBAAuB,CAFvB,OAGD,CAGD,kBACC,GAAO,SAAY,CACnB,GAAO,SAAY,CACpB\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-editor__editable {\\n\\t& .image,\\n\\t& .image-inline {\\n\\t\\tposition: relative;\\n\\t}\\n\\n\\t/* Upload progress bar. */\\n\\t& .image .ck-progress-bar,\\n\\t& .image-inline .ck-progress-bar {\\n\\t\\tposition: absolute;\\n\\t\\ttop: 0;\\n\\t\\tleft: 0;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-editor__editable {\\n\\t& .image,\\n\\t& .image-inline {\\n\\t\\t/* Showing animation. */\\n\\t\\t&.ck-appear {\\n\\t\\t\\tanimation: fadeIn 700ms;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Upload progress bar. */\\n\\t& .image .ck-progress-bar,\\n\\t& .image-inline .ck-progress-bar {\\n\\t\\theight: 2px;\\n\\t\\twidth: 0;\\n\\t\\tbackground: var(--ck-color-upload-bar-background);\\n\\t\\ttransition: width 100ms;\\n\\t}\\n}\\n\\n@keyframes fadeIn {\\n\\tfrom { opacity: 0; }\\n\\tto   { opacity: 1; }\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-text-alternative-form{display:flex;flex-direction:row;flex-wrap:nowrap}.ck.ck-text-alternative-form .ck-labeled-field-view{display:inline-block}.ck.ck-text-alternative-form .ck-label{display:none}@media screen and (max-width:600px){.ck.ck-text-alternative-form{flex-wrap:wrap}.ck.ck-text-alternative-form .ck-labeled-field-view{flex-basis:100%}.ck.ck-text-alternative-form .ck-button{flex-basis:50%}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-image/theme/textalternativeform.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\"],\"names\":[],\"mappings\":\"AAOA,6BACC,YAAa,CACb,kBAAmB,CACnB,gBAqBD,CAnBC,oDACC,oBACD,CAEA,uCACC,YACD,CCZA,oCDCD,6BAcE,cAUF,CARE,oDACC,eACD,CAEA,wCACC,cACD,CCrBD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck.ck-text-alternative-form {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\n\\t& .ck-labeled-field-view {\\n\\t\\tdisplay: inline-block;\\n\\t}\\n\\n\\t& .ck-label {\\n\\t\\tdisplay: none;\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tflex-wrap: wrap;\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tflex-basis: 100%;\\n\\t\\t}\\n\\n\\t\\t& .ck-button {\\n\\t\\t\\tflex-basis: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-collapsible.ck-collapsible_collapsed>.ck-collapsible__children{display:none}:root{--ck-collapsible-arrow-size:calc(var(--ck-icon-size)*0.5)}.ck.ck-collapsible>.ck.ck-button{border-radius:0;color:inherit;font-weight:700;padding:var(--ck-spacing-medium) var(--ck-spacing-large);width:100%}.ck.ck-collapsible>.ck.ck-button:focus{background:transparent}.ck.ck-collapsible>.ck.ck-button:active,.ck.ck-collapsible>.ck.ck-button:hover:not(:focus),.ck.ck-collapsible>.ck.ck-button:not(:focus){background:transparent;border-color:transparent;box-shadow:none}.ck.ck-collapsible>.ck.ck-button>.ck-icon{margin-right:var(--ck-spacing-medium);width:var(--ck-collapsible-arrow-size)}.ck.ck-collapsible>.ck-collapsible__children{padding:0 var(--ck-spacing-large) var(--ck-spacing-large)}.ck.ck-collapsible.ck-collapsible_collapsed>.ck.ck-button .ck-icon{transform:rotate(-90deg)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-list/theme/collapsible.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/collapsible.css\"],\"names\":[],\"mappings\":\"AAMC,sEACC,YACD,CCHD,MACC,yDACD,CAGC,iCAIC,eAAgB,CAChB,aAAc,CAHd,eAAiB,CACjB,wDAAyD,CAFzD,UAoBD,CAdC,uCACC,sBACD,CAEA,wIACC,sBAAuB,CACvB,wBAAyB,CACzB,eACD,CAEA,0CACC,qCAAsC,CACtC,sCACD,CAGD,6CACC,yDACD,CAGC,mEACC,wBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-collapsible.ck-collapsible_collapsed {\\n\\t& > .ck-collapsible__children {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-collapsible-arrow-size: calc(0.5 * var(--ck-icon-size));\\n}\\n\\n.ck.ck-collapsible {\\n\\t& > .ck.ck-button {\\n\\t\\twidth: 100%;\\n\\t\\tfont-weight: bold;\\n\\t\\tpadding: var(--ck-spacing-medium) var(--ck-spacing-large);\\n\\t\\tborder-radius: 0;\\n\\t\\tcolor: inherit;\\n\\n\\t\\t&:focus {\\n\\t\\t\\tbackground: transparent;\\n\\t\\t}\\n\\n\\t\\t&:active, &:not(:focus), &:hover:not(:focus) {\\n\\t\\t\\tbackground: transparent;\\n\\t\\t\\tborder-color: transparent;\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t}\\n\\n\\t\\t& > .ck-icon {\\n\\t\\t\\tmargin-right: var(--ck-spacing-medium);\\n\\t\\t\\twidth: var(--ck-collapsible-arrow-size);\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-collapsible__children {\\n\\t\\tpadding: 0 var(--ck-spacing-large) var(--ck-spacing-large);\\n\\t}\\n\\n\\t&.ck-collapsible_collapsed {\\n\\t\\t& > .ck.ck-button .ck-icon {\\n\\t\\t\\ttransform: rotate(-90deg);\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content ol{list-style-type:decimal}.ck-content ol ol{list-style-type:lower-latin}.ck-content ol ol ol{list-style-type:lower-roman}.ck-content ol ol ol ol{list-style-type:upper-latin}.ck-content ol ol ol ol ol{list-style-type:upper-roman}.ck-content ul{list-style-type:disc}.ck-content ul ul{list-style-type:circle}.ck-content ul ul ul,.ck-content ul ul ul ul{list-style-type:square}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-list/theme/list.css\"],\"names\":[],\"mappings\":\"AAKA,eACC,uBAiBD,CAfC,kBACC,2BAaD,CAXC,qBACC,2BASD,CAPC,wBACC,2BAKD,CAHC,2BACC,2BACD,CAMJ,eACC,oBAaD,CAXC,kBACC,sBASD,CAJE,6CACC,sBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content ol {\\n\\tlist-style-type: decimal;\\n\\n\\t& ol {\\n\\t\\tlist-style-type: lower-latin;\\n\\n\\t\\t& ol {\\n\\t\\t\\tlist-style-type: lower-roman;\\n\\n\\t\\t\\t& ol {\\n\\t\\t\\t\\tlist-style-type: upper-latin;\\n\\n\\t\\t\\t\\t& ol {\\n\\t\\t\\t\\t\\tlist-style-type: upper-roman;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck-content ul {\\n\\tlist-style-type: disc;\\n\\n\\t& ul {\\n\\t\\tlist-style-type: circle;\\n\\n\\t\\t& ul {\\n\\t\\t\\tlist-style-type: square;\\n\\n\\t\\t\\t& ul {\\n\\t\\t\\t\\tlist-style-type: square;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-list-properties.ck-list-properties_without-styles{padding:var(--ck-spacing-large)}.ck.ck-list-properties.ck-list-properties_without-styles>*{min-width:14em}.ck.ck-list-properties.ck-list-properties_without-styles>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-list-styles-list{grid-template-columns:repeat(4,auto)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible{border-top:1px solid var(--ck-color-base-border)}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*{width:100%}.ck.ck-list-properties.ck-list-properties_with-numbered-properties>.ck-collapsible>.ck-collapsible__children>*+*{margin-top:var(--ck-spacing-standard)}.ck.ck-list-properties .ck.ck-numbered-list-properties__start-index .ck-input{min-width:auto;width:100%}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order{background:transparent;margin-bottom:calc(var(--ck-spacing-tiny)*-1);padding-left:0;padding-right:0}.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:active,.ck.ck-list-properties .ck.ck-numbered-list-properties__reversed-order:hover{background:none;border-color:transparent;box-shadow:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/listproperties.css\"],\"names\":[],\"mappings\":\"AAOC,yDACC,+BASD,CAPC,2DACC,cAKD,CAHC,6DACC,qCACD,CASD,wFACC,oCACD,CAGA,mFACC,gDAWD,CARE,+GACC,UAKD,CAHC,iHACC,qCACD,CAMJ,8EACC,cAAe,CACf,UACD,CAEA,uEACC,sBAAuB,CAGvB,6CAAgD,CAFhD,cAAe,CACf,eAQD,CALC,2JAGC,eAAgB,CADhB,wBAAyB,CADzB,eAGD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-list-properties {\\n\\t/* When there are no list styles and there is no collapsible. */\\n\\t&.ck-list-properties_without-styles {\\n\\t\\tpadding: var(--ck-spacing-large);\\n\\n\\t\\t& > * {\\n\\t\\t\\tmin-width: 14em;\\n\\n\\t\\t\\t& + * {\\n\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * When the numbered list property fields (start at, reversed) should be displayed,\\n\\t * more horizontal space is needed. Reconfigure the style grid to create that space.\\n\\t */\\n\\t&.ck-list-properties_with-numbered-properties {\\n\\t\\t& > .ck-list-styles-list {\\n\\t\\t\\tgrid-template-columns: repeat( 4, auto );\\n\\t\\t}\\n\\n\\t\\t/* When list styles are rendered and property fields are in a collapsible. */\\n\\t\\t& > .ck-collapsible {\\n\\t\\t\\tborder-top: 1px solid var(--ck-color-base-border);\\n\\n\\t\\t\\t& > .ck-collapsible__children {\\n\\t\\t\\t\\t& > * {\\n\\t\\t\\t\\t\\twidth: 100%;\\n\\n\\t\\t\\t\\t\\t& + * {\\n\\t\\t\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\t\\t\\t\\t\\t}\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-numbered-list-properties__start-index .ck-input {\\n\\t\\tmin-width: auto;\\n\\t\\twidth: 100%;\\n\\t}\\n\\n\\t& .ck.ck-numbered-list-properties__reversed-order {\\n\\t\\tbackground: transparent;\\n\\t\\tpadding-left: 0;\\n\\t\\tpadding-right: 0;\\n\\t\\tmargin-bottom: calc(-1 * var(--ck-spacing-tiny));\\n\\n\\t\\t&:active, &:hover {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t\\tborder-color: transparent;\\n\\t\\t\\tbackground: none;\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-list-styles-list{display:grid}:root{--ck-list-style-button-size:44px}.ck.ck-list-styles-list{column-gap:var(--ck-spacing-medium);grid-template-columns:repeat(3,auto);padding:var(--ck-spacing-large);row-gap:var(--ck-spacing-medium)}.ck.ck-list-styles-list .ck-button{box-sizing:content-box;margin:0;padding:0}.ck.ck-list-styles-list .ck-button,.ck.ck-list-styles-list .ck-button .ck-icon{height:var(--ck-list-style-button-size);width:var(--ck-list-style-button-size)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-list/theme/liststyles.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-list/liststyles.css\"],\"names\":[],\"mappings\":\"AAKA,wBACC,YACD,CCFA,MACC,gCACD,CAEA,wBAGC,mCAAoC,CAFpC,oCAAwC,CAGxC,+BAAgC,CAFhC,gCA4BD,CAxBC,mCAiBC,sBAAuB,CAPvB,QAAS,CANT,SAmBD,CAJC,+EAhBA,uCAAwC,CADxC,sCAoBA\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-list-styles-list {\\n\\tdisplay: grid;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-list-style-button-size: 44px;\\n}\\n\\n.ck.ck-list-styles-list {\\n\\tgrid-template-columns: repeat( 3, auto );\\n\\trow-gap: var(--ck-spacing-medium);\\n\\tcolumn-gap: var(--ck-spacing-medium);\\n\\tpadding: var(--ck-spacing-large);\\n\\n\\t& .ck-button {\\n\\t\\t/* Make the button look like a thumbnail (the icon \\\"takes it all\\\"). */\\n\\t\\twidth: var(--ck-list-style-button-size);\\n\\t\\theight: var(--ck-list-style-button-size);\\n\\t\\tpadding: 0;\\n\\n\\t\\t/*\\n\\t\\t * Buttons are aligned by the grid so disable default button margins to not collide with the\\n\\t\\t * gaps in the grid.\\n\\t\\t */\\n\\t\\tmargin: 0;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the button border (which is displayed on focus, BTW) does not steal pixels\\n\\t\\t * from the button dimensions and, as a result, decrease the size of the icon\\n\\t\\t * (which becomes blurry as it scales down).\\n\\t\\t */\\n\\t\\tbox-sizing: content-box;\\n\\n\\t\\t& .ck-icon {\\n\\t\\t\\twidth: var(--ck-list-style-button-size);\\n\\t\\t\\theight: var(--ck-list-style-button-size);\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-todo-list-checkmark-size:16px}.ck-content .todo-list{list-style:none}.ck-content .todo-list li{margin-bottom:5px}.ck-content .todo-list li .todo-list{margin-top:5px}.ck-content .todo-list .todo-list__label>input{-webkit-appearance:none;border:0;display:inline-block;height:var(--ck-todo-list-checkmark-size);left:-25px;margin-left:0;margin-right:-15px;position:relative;right:0;vertical-align:middle;width:var(--ck-todo-list-checkmark-size)}.ck-content .todo-list .todo-list__label>input:before{border:1px solid #333;border-radius:2px;box-sizing:border-box;content:\\\"\\\";display:block;height:100%;position:absolute;transition:box-shadow .25s ease-in-out,background .25s ease-in-out,border .25s ease-in-out;width:100%}.ck-content .todo-list .todo-list__label>input:after{border-color:transparent;border-style:solid;border-width:0 calc(var(--ck-todo-list-checkmark-size)/8) calc(var(--ck-todo-list-checkmark-size)/8) 0;box-sizing:content-box;content:\\\"\\\";display:block;height:calc(var(--ck-todo-list-checkmark-size)/2.6);left:calc(var(--ck-todo-list-checkmark-size)/3);pointer-events:none;position:absolute;top:calc(var(--ck-todo-list-checkmark-size)/5.3);transform:rotate(45deg);width:calc(var(--ck-todo-list-checkmark-size)/5.3)}.ck-content .todo-list .todo-list__label>input[checked]:before{background:#26ab33;border-color:#26ab33}.ck-content .todo-list .todo-list__label>input[checked]:after{border-color:#fff}.ck-content .todo-list .todo-list__label .todo-list__label__description{vertical-align:middle}[dir=rtl] .todo-list .todo-list__label>input{left:0;margin-left:-15px;margin-right:0;right:-25px}.ck-editor__editable .todo-list .todo-list__label>input{cursor:pointer}.ck-editor__editable .todo-list .todo-list__label>input:hover:before{box-shadow:0 0 0 5px rgba(0,0,0,.1)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-list/theme/todolist.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,kCACD,CAEA,uBACC,eA0ED,CAxEC,0BACC,iBAKD,CAHC,qCACC,cACD,CAIA,+CACC,uBAAwB,CAQxB,QAAS,CAPT,oBAAqB,CAGrB,yCAA0C,CAO1C,UAAW,CAGX,aAAc,CAFd,kBAAmB,CAVnB,iBAAkB,CAWlB,OAAQ,CARR,qBAAsB,CAFtB,wCAqDD,CAxCC,sDAOC,qBAAiC,CACjC,iBAAkB,CALlB,qBAAsB,CACtB,UAAW,CAHX,aAAc,CAKd,WAAY,CAJZ,iBAAkB,CAOlB,0FAAgG,CAJhG,UAKD,CAEA,qDAaC,wBAAyB,CADzB,kBAAmB,CAEnB,sGAA+G,CAX/G,sBAAuB,CAEvB,UAAW,CAJX,aAAc,CAUd,mDAAwD,CAHxD,+CAAoD,CAJpD,mBAAoB,CAFpB,iBAAkB,CAOlB,gDAAqD,CAMrD,uBAAwB,CALxB,kDAMD,CAGC,+DACC,kBAA8B,CAC9B,oBACD,CAEA,8DACC,iBACD,CAIF,wEACC,qBACD,CAKF,6CACC,MAAO,CAGP,iBAAkB,CAFlB,cAAe,CACf,WAED,CAMA,wDACC,cAKD,CAHC,qEACC,mCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-todo-list-checkmark-size: 16px;\\n}\\n\\n.ck-content .todo-list {\\n\\tlist-style: none;\\n\\n\\t& li {\\n\\t\\tmargin-bottom: 5px;\\n\\n\\t\\t& .todo-list {\\n\\t\\t\\tmargin-top: 5px;\\n\\t\\t}\\n\\t}\\n\\n\\t& .todo-list__label {\\n\\t\\t& > input {\\n\\t\\t\\t-webkit-appearance: none;\\n\\t\\t\\tdisplay: inline-block;\\n\\t\\t\\tposition: relative;\\n\\t\\t\\twidth: var(--ck-todo-list-checkmark-size);\\n\\t\\t\\theight: var(--ck-todo-list-checkmark-size);\\n\\t\\t\\tvertical-align: middle;\\n\\n\\t\\t\\t/* Needed on iOS */\\n\\t\\t\\tborder: 0;\\n\\n\\t\\t\\t/* LTR styles */\\n\\t\\t\\tleft: -25px;\\n\\t\\t\\tmargin-right: -15px;\\n\\t\\t\\tright: 0;\\n\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t&::before {\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tbox-sizing: border-box;\\n\\t\\t\\t\\tcontent: '';\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t\\theight: 100%;\\n\\t\\t\\t\\tborder: 1px solid hsl(0, 0%, 20%);\\n\\t\\t\\t\\tborder-radius: 2px;\\n\\t\\t\\t\\ttransition: 250ms ease-in-out box-shadow, 250ms ease-in-out background, 250ms ease-in-out border;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tbox-sizing: content-box;\\n\\t\\t\\t\\tpointer-events: none;\\n\\t\\t\\t\\tcontent: '';\\n\\n\\t\\t\\t\\t/* Calculate tick position, size and border-width proportional to the checkmark size. */\\n\\t\\t\\t\\tleft: calc( var(--ck-todo-list-checkmark-size) / 3 );\\n\\t\\t\\t\\ttop: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\\n\\t\\t\\t\\twidth: calc( var(--ck-todo-list-checkmark-size) / 5.3 );\\n\\t\\t\\t\\theight: calc( var(--ck-todo-list-checkmark-size) / 2.6 );\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t\\tborder-color: transparent;\\n\\t\\t\\t\\tborder-width: 0 calc( var(--ck-todo-list-checkmark-size) / 8 ) calc( var(--ck-todo-list-checkmark-size) / 8 ) 0;\\n\\t\\t\\t\\ttransform: rotate(45deg);\\n\\t\\t\\t}\\n\\n\\t\\t\\t&[checked] {\\n\\t\\t\\t\\t&::before {\\n\\t\\t\\t\\t\\tbackground: hsl(126, 64%, 41%);\\n\\t\\t\\t\\t\\tborder-color: hsl(126, 64%, 41%);\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t&::after {\\n\\t\\t\\t\\t\\tborder-color: hsl(0, 0%, 100%);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& .todo-list__label__description {\\n\\t\\t\\tvertical-align: middle;\\n\\t\\t}\\n\\t}\\n}\\n\\n/* RTL styles */\\n[dir=\\\"rtl\\\"] .todo-list .todo-list__label > input {\\n\\tleft: 0;\\n\\tmargin-right: 0;\\n\\tright: -25px;\\n\\tmargin-left: -15px;\\n}\\n\\n/*\\n * To-do list should be interactive only during the editing\\n * (https://github.com/ckeditor/ckeditor5/issues/2090).\\n */\\n.ck-editor__editable .todo-list .todo-list__label > input {\\n\\tcursor: pointer;\\n\\n\\t&:hover::before {\\n\\t\\tbox-shadow: 0 0 0 5px hsla(0, 0%, 0%, 0.1);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-input-color{display:flex;flex-direction:row-reverse;width:100%}.ck.ck-input-color>input.ck.ck-input-text{flex-grow:1;min-width:auto}.ck.ck-input-color>div.ck.ck-dropdown{min-width:auto}.ck.ck-input-color>div.ck.ck-dropdown>.ck-input-color__button .ck-dropdown__arrow{display:none}.ck.ck-input-color .ck.ck-input-color__button{display:flex}.ck.ck-input-color .ck.ck-input-color__button .ck.ck-input-color__button__preview{overflow:hidden;position:relative}.ck.ck-input-color .ck.ck-input-color__button .ck.ck-input-color__button__preview>.ck.ck-input-color__button__preview__no-color-indicator{display:block;position:absolute}[dir=ltr] .ck.ck-input-color>.ck.ck-input-text{border-bottom-right-radius:0;border-top-right-radius:0}[dir=rtl] .ck.ck-input-color>.ck.ck-input-text{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-input-color>.ck.ck-input-text:focus{z-index:0}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{padding:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-left-radius:0;border-top-left-radius:0}[dir=ltr] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-left:1px solid transparent}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button{border-bottom-right-radius:0;border-top-right-radius:0}[dir=rtl] .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button:not(:focus){border-right:1px solid transparent}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button.ck-disabled{background:var(--ck-color-input-disabled-background)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border-radius:0}.ck-rounded-corners .ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview,.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview{border:1px solid var(--ck-color-input-border);height:20px;width:20px}.ck.ck-input-color>.ck.ck-dropdown>.ck.ck-button.ck-input-color__button>.ck.ck-input-color__button__preview>.ck.ck-input-color__button__preview__no-color-indicator{background:red;border-radius:2px;height:150%;left:50%;top:-30%;transform:rotate(45deg);transform-origin:50%;width:8%}.ck.ck-input-color .ck.ck-input-color__remove-color{border-bottom-left-radius:0;border-bottom-right-radius:0;padding:calc(var(--ck-spacing-standard)/2) var(--ck-spacing-standard);width:100%}.ck.ck-input-color .ck.ck-input-color__remove-color:not(:focus){border-bottom:1px solid var(--ck-color-input-border)}[dir=ltr] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-right-radius:0}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color{border-top-left-radius:0}.ck.ck-input-color .ck.ck-input-color__remove-color .ck.ck-icon{margin-right:var(--ck-spacing-standard)}[dir=rtl] .ck.ck-input-color .ck.ck-input-color__remove-color .ck.ck-icon{margin-left:var(--ck-spacing-standard);margin-right:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/colorinput.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/colorinput.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAKA,mBAEC,YAAa,CACb,0BAA2B,CAF3B,UAgCD,CA5BC,0CAEC,WAAY,CADZ,cAED,CAEA,sCACC,cAMD,CAHC,kFACC,YACD,CAGD,8CAEC,YAWD,CATC,kFAEC,eAAgB,CADhB,iBAOD,CAJC,0IAEC,aAAc,CADd,iBAED,CC1BF,+CAGE,4BAA6B,CAD7B,yBAcF,CAhBA,+CAQE,2BAA4B,CAD5B,wBASF,CAHC,2CACC,SACD,CAIA,wEACC,SA0CD,CA3CA,kFAKE,2BAA4B,CAD5B,wBAuCF,CApCE,8FACC,iCACD,CATF,kFAcE,4BAA6B,CAD7B,yBA8BF,CA3BE,8FACC,kCACD,CAGD,oFACC,oDACD,CAEA,4GC1CF,eD2DE,CAjBA,+PCtCD,qCDuDC,CAjBA,4GAKC,6CAA8C,CAD9C,WAAY,CADZ,UAcD,CAVC,oKAKC,cAA6B,CAC7B,iBAAkB,CAHlB,WAAY,CADZ,QAAS,CADT,QAAS,CAMT,uBAAwB,CACxB,oBAAqB,CAJrB,QAKD,CAKH,oDAIC,2BAA4B,CAC5B,4BAA6B,CAH7B,qEAAwE,CADxE,UA0BD,CApBC,gEACC,oDACD,CATD,8DAYE,yBAeF,CA3BA,8DAgBE,wBAWF,CARC,gEACC,uCAMD,CAPA,0EAKE,sCAAuC,CADvC,cAGF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-input-color {\\n\\twidth: 100%;\\n\\tdisplay: flex;\\n\\tflex-direction: row-reverse;\\n\\n\\t& > input.ck.ck-input-text {\\n\\t\\tmin-width: auto;\\n\\t\\tflex-grow: 1;\\n\\t}\\n\\n\\t& > div.ck.ck-dropdown {\\n\\t\\tmin-width: auto;\\n\\n\\t\\t/* This dropdown has no arrow but a color preview instead. */\\n\\t\\t& > .ck-input-color__button .ck-dropdown__arrow {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-input-color__button {\\n\\t\\t/* Resolving issue with misaligned buttons on Safari (see #10589) */\\n\\t\\tdisplay: flex;\\n\\n\\t\\t& .ck.ck-input-color__button__preview {\\n\\t\\t\\tposition: relative;\\n\\t\\t\\toverflow: hidden;\\n\\n\\t\\t\\t& > .ck.ck-input-color__button__preview__no-color-indicator {\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tdisplay: block;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n@import \\\"../mixins/_rounded.css\\\";\\n\\n.ck.ck-input-color {\\n\\t& > .ck.ck-input-text {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t}\\n\\n\\t\\t/* Make sure the focused input is always on top of the dropdown button so its\\n\\t\\t   outline and border are never cropped (also when the input is read-only). */\\n\\t\\t&:focus {\\n\\t\\t\\tz-index: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck.ck-dropdown {\\n\\t\\t& > .ck.ck-button.ck-input-color__button {\\n\\t\\t\\tpadding: 0;\\n\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\t\\tborder-bottom-left-radius: 0;\\n\\n\\t\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\t\\tborder-left: 1px solid transparent;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\t\\tborder-bottom-right-radius: 0;\\n\\n\\t\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\t\\tborder-right: 1px solid transparent;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t&.ck-disabled {\\n\\t\\t\\t\\tbackground: var(--ck-color-input-disabled-background);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck.ck-input-color__button__preview {\\n\\t\\t\\t\\t@mixin ck-rounded-corners;\\n\\n\\t\\t\\t\\twidth: 20px;\\n\\t\\t\\t\\theight: 20px;\\n\\t\\t\\t\\tborder: 1px solid var(--ck-color-input-border);\\n\\n\\t\\t\\t\\t& > .ck.ck-input-color__button__preview__no-color-indicator {\\n\\t\\t\\t\\t\\ttop: -30%;\\n\\t\\t\\t\\t\\tleft: 50%;\\n\\t\\t\\t\\t\\theight: 150%;\\n\\t\\t\\t\\t\\twidth: 8%;\\n\\t\\t\\t\\t\\tbackground: hsl(0, 100%, 50%);\\n\\t\\t\\t\\t\\tborder-radius: 2px;\\n\\t\\t\\t\\t\\ttransform: rotate(45deg);\\n\\t\\t\\t\\t\\ttransform-origin: 50%;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-input-color__remove-color {\\n\\t\\twidth: 100%;\\n\\t\\tpadding: calc(var(--ck-spacing-standard) / 2) var(--ck-spacing-standard);\\n\\n\\t\\tborder-bottom-left-radius: 0;\\n\\t\\tborder-bottom-right-radius: 0;\\n\\n\\t\\t&:not(:focus) {\\n\\t\\t\\tborder-bottom: 1px solid var(--ck-color-input-border);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t}\\n\\n\\t\\t& .ck.ck-icon {\\n\\t\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-right: 0;\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-form{padding:0 0 var(--ck-spacing-large)}.ck.ck-form:focus{outline:none}.ck.ck-form .ck.ck-input-text{min-width:100%;width:0}.ck.ck-form .ck.ck-dropdown{min-width:100%}.ck.ck-form .ck.ck-dropdown .ck-dropdown__button:not(:focus){border:1px solid var(--ck-color-base-border)}.ck.ck-form .ck.ck-dropdown .ck-dropdown__button .ck-button__label{width:100%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/form.css\"],\"names\":[],\"mappings\":\"AAKA,YACC,mCAyBD,CAvBC,kBAEC,YACD,CAEA,8BACC,cAAe,CACf,OACD,CAEA,4BACC,cAWD,CARE,6DACC,4CACD,CAEA,mEACC,UACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-form {\\n\\tpadding: 0 0 var(--ck-spacing-large);\\n\\n\\t&:focus {\\n\\t\\t/* See: https://github.com/ckeditor/ckeditor5/issues/4773 */\\n\\t\\toutline: none;\\n\\t}\\n\\n\\t& .ck.ck-input-text {\\n\\t\\tmin-width: 100%;\\n\\t\\twidth: 0;\\n\\t}\\n\\n\\t& .ck.ck-dropdown {\\n\\t\\tmin-width: 100%;\\n\\n\\t\\t& .ck-dropdown__button {\\n\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\tborder: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-button__label {\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-form__row{display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:space-between}.ck.ck-form__row>:not(.ck-label){flex-grow:1}.ck.ck-form__row.ck-table-form__action-row .ck-button-cancel,.ck.ck-form__row.ck-table-form__action-row .ck-button-save{justify-content:center}.ck.ck-form__row{padding:var(--ck-spacing-standard) var(--ck-spacing-large) 0}[dir=ltr] .ck.ck-form__row>:not(.ck-label)+*{margin-left:var(--ck-spacing-large)}[dir=rtl] .ck.ck-form__row>:not(.ck-label)+*{margin-right:var(--ck-spacing-large)}.ck.ck-form__row>.ck-label{min-width:100%;width:100%}.ck.ck-form__row.ck-table-form__action-row{margin-top:var(--ck-spacing-large)}.ck.ck-form__row.ck-table-form__action-row .ck-button .ck-button__label{color:var(--ck-color-text)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/formrow.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/formrow.css\"],\"names\":[],\"mappings\":\"AAKA,iBACC,YAAa,CACb,kBAAmB,CACnB,gBAAiB,CACjB,6BAaD,CAVC,iCACC,WACD,CAGC,wHAEC,sBACD,CCbF,iBACC,4DA2BD,CAvBE,6CAEE,mCAMF,CARA,6CAME,oCAEF,CAGD,2BAEC,cAAe,CADf,UAED,CAEA,2CACC,kCAKD,CAHC,wEACC,0BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-form__row {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\tjustify-content: space-between;\\n\\n\\t/* Ignore labels that work as fieldset legends */\\n\\t& > *:not(.ck-label) {\\n\\t\\tflex-grow: 1;\\n\\t}\\n\\n\\t&.ck-table-form__action-row {\\n\\t\\t& .ck-button-save,\\n\\t\\t& .ck-button-cancel {\\n\\t\\t\\tjustify-content: center;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-form__row {\\n\\tpadding: var(--ck-spacing-standard) var(--ck-spacing-large) 0;\\n\\n\\t/* Ignore labels that work as fieldset legends */\\n\\t& > *:not(.ck-label) {\\n\\t\\t& + * {\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-large);\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-right: var(--ck-spacing-large);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-label {\\n\\t\\twidth: 100%;\\n\\t\\tmin-width: 100%;\\n\\t}\\n\\n\\t&.ck-table-form__action-row {\\n\\t\\tmargin-top: var(--ck-spacing-large);\\n\\n\\t\\t& .ck-button .ck-button__label {\\n\\t\\t\\tcolor: var(--ck-color-text);\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-insert-table-dropdown__grid{display:flex;flex-direction:row;flex-wrap:wrap}:root{--ck-insert-table-dropdown-padding:10px;--ck-insert-table-dropdown-box-height:11px;--ck-insert-table-dropdown-box-width:12px;--ck-insert-table-dropdown-box-margin:1px}.ck .ck-insert-table-dropdown__grid{padding:var(--ck-insert-table-dropdown-padding) var(--ck-insert-table-dropdown-padding) 0;width:calc(var(--ck-insert-table-dropdown-box-width)*10 + var(--ck-insert-table-dropdown-box-margin)*20 + var(--ck-insert-table-dropdown-padding)*2)}.ck .ck-insert-table-dropdown__label,.ck[dir=rtl] .ck-insert-table-dropdown__label{text-align:center}.ck .ck-insert-table-dropdown-grid-box{border:1px solid var(--ck-color-base-border);border-radius:1px;margin:var(--ck-insert-table-dropdown-box-margin);min-height:var(--ck-insert-table-dropdown-box-height);min-width:var(--ck-insert-table-dropdown-box-width);outline:none;transition:none}.ck .ck-insert-table-dropdown-grid-box:focus{box-shadow:none}.ck .ck-insert-table-dropdown-grid-box.ck-on{background:var(--ck-color-focus-outer-shadow);border-color:var(--ck-color-focus-border)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/inserttable.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/inserttable.css\"],\"names\":[],\"mappings\":\"AAKA,oCACC,YAAa,CACb,kBAAmB,CACnB,cACD,CCJA,MACC,uCAAwC,CACxC,0CAA2C,CAC3C,yCAA0C,CAC1C,yCACD,CAEA,oCAGC,yFAA0F,CAD1F,oJAED,CAEA,mFAEC,iBACD,CAEA,uCAIC,4CAA6C,CAC7C,iBAAkB,CAFlB,iDAAkD,CADlD,qDAAsD,CADtD,mDAAoD,CAKpD,YAAa,CACb,eAUD,CARC,6CACC,eACD,CAEA,6CAEC,6CAA8C,CAD9C,yCAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-insert-table-dropdown__grid {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: wrap;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-insert-table-dropdown-padding: 10px;\\n\\t--ck-insert-table-dropdown-box-height: 11px;\\n\\t--ck-insert-table-dropdown-box-width: 12px;\\n\\t--ck-insert-table-dropdown-box-margin: 1px;\\n}\\n\\n.ck .ck-insert-table-dropdown__grid {\\n\\t/* The width of a container should match 10 items in a row so there will be a 10x10 grid. */\\n\\twidth: calc(var(--ck-insert-table-dropdown-box-width) * 10 + var(--ck-insert-table-dropdown-box-margin) * 20 + var(--ck-insert-table-dropdown-padding) * 2);\\n\\tpadding: var(--ck-insert-table-dropdown-padding) var(--ck-insert-table-dropdown-padding) 0;\\n}\\n\\n.ck .ck-insert-table-dropdown__label,\\n.ck[dir=rtl] .ck-insert-table-dropdown__label {\\n\\ttext-align: center;\\n}\\n\\n.ck .ck-insert-table-dropdown-grid-box {\\n\\tmin-width: var(--ck-insert-table-dropdown-box-width);\\n\\tmin-height: var(--ck-insert-table-dropdown-box-height);\\n\\tmargin: var(--ck-insert-table-dropdown-box-margin);\\n\\tborder: 1px solid var(--ck-color-base-border);\\n\\tborder-radius: 1px;\\n\\toutline: none;\\n\\ttransition: none;\\n\\n\\t&:focus {\\n\\t\\tbox-shadow: none;\\n\\t}\\n\\n\\t&.ck-on {\\n\\t\\tborder-color: var(--ck-color-focus-border);\\n\\t\\tbackground: var(--ck-color-focus-outer-shadow);\\n\\t}\\n}\\n\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-content .table{display:table;margin:.9em auto}.ck-content .table table{border:1px double #b3b3b3;border-collapse:collapse;border-spacing:0;height:100%;width:100%}.ck-content .table table td,.ck-content .table table th{border:1px solid #bfbfbf;min-width:2em;padding:.4em}.ck-content .table table th{background:rgba(0,0,0,.05);font-weight:700}.ck-content[dir=rtl] .table th{text-align:right}.ck-content[dir=ltr] .table th{text-align:left}.ck-editor__editable .ck-table-bogus-paragraph{display:inline-block;width:100%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/table.css\"],\"names\":[],\"mappings\":\"AAKA,mBAKC,aAAc,CADd,gBAiCD,CA9BC,yBAYC,yBAAkC,CAVlC,wBAAyB,CACzB,gBAAiB,CAKjB,WAAY,CADZ,UAsBD,CAfC,wDAQC,wBAAiC,CANjC,aAAc,CACd,YAMD,CAEA,4BAEC,0BAA+B,CAD/B,eAED,CAMF,+BACC,gBACD,CAEA,+BACC,eACD,CAEA,+CAKC,oBAAqB,CAMrB,UACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck-content .table {\\n\\t/* Give the table widget some air and center it horizontally */\\n\\t/* The first value should be equal to --ck-spacing-large variable if used in the editor context\\n\\tto avoid the content jumping (See https://github.com/ckeditor/ckeditor5/issues/9825). */\\n\\tmargin: 0.9em auto;\\n\\tdisplay: table;\\n\\n\\t& table {\\n\\t\\t/* The table cells should have slight borders */\\n\\t\\tborder-collapse: collapse;\\n\\t\\tborder-spacing: 0;\\n\\n\\t\\t/* Table width and height are set on the parent <figure>. Make sure the table inside stretches\\n\\t\\tto the full dimensions of the container (https://github.com/ckeditor/ckeditor5/issues/6186). */\\n\\t\\twidth: 100%;\\n\\t\\theight: 100%;\\n\\n\\t\\t/* The outer border of the table should be slightly darker than the inner lines.\\n\\t\\tAlso see https://github.com/ckeditor/ckeditor5-table/issues/50. */\\n\\t\\tborder: 1px double hsl(0, 0%, 70%);\\n\\n\\t\\t& td,\\n\\t\\t& th {\\n\\t\\t\\tmin-width: 2em;\\n\\t\\t\\tpadding: .4em;\\n\\n\\t\\t\\t/* The border is inherited from .ck-editor__nested-editable styles, so theoretically it's not necessary here.\\n\\t\\t\\tHowever, the border is a content style, so it should use .ck-content (so it works outside the editor).\\n\\t\\t\\tHence, the duplication. See https://github.com/ckeditor/ckeditor5/issues/6314 */\\n\\t\\t\\tborder: 1px solid hsl(0, 0%, 75%);\\n\\t\\t}\\n\\n\\t\\t& th {\\n\\t\\t\\tfont-weight: bold;\\n\\t\\t\\tbackground: hsla(0, 0%, 0%, 5%);\\n\\t\\t}\\n\\t}\\n}\\n\\n/* Text alignment of the table header should match the editor settings and override the native browser styling,\\nwhen content is available outside the editor. See https://github.com/ckeditor/ckeditor5/issues/6638 */\\n.ck-content[dir=\\\"rtl\\\"] .table th {\\n\\ttext-align: right;\\n}\\n\\n.ck-content[dir=\\\"ltr\\\"] .table th {\\n\\ttext-align: left;\\n}\\n\\n.ck-editor__editable .ck-table-bogus-paragraph {\\n\\t/*\\n\\t * Use display:inline-block to force Chrome/Safari to limit text mutations to this element.\\n\\t * See https://github.com/ckeditor/ckeditor5/issues/6062.\\n\\t */\\n\\tdisplay: inline-block;\\n\\n\\t/*\\n\\t * Inline HTML elements nested in the span should always be dimensioned in relation to the whole cell width.\\n\\t * See https://github.com/ckeditor/ckeditor5/issues/9117.\\n\\t */\\n\\twidth: 100%;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-table-caption-background:#f7f7f7;--ck-color-table-caption-text:#333;--ck-color-table-caption-highlighted-background:#fd0}.ck-content .table>figcaption{background-color:var(--ck-color-table-caption-background);caption-side:top;color:var(--ck-color-table-caption-text);display:table-caption;font-size:.75em;outline-offset:-1px;padding:.6em;text-align:center;word-break:break-word}.ck.ck-editor__editable .table>figcaption.table__caption_highlighted{animation:ck-table-caption-highlight .6s ease-out}.ck.ck-editor__editable .table>figcaption.ck-placeholder:before{overflow:hidden;padding-left:inherit;padding-right:inherit;text-overflow:ellipsis;white-space:nowrap}@keyframes ck-table-caption-highlight{0%{background-color:var(--ck-color-table-caption-highlighted-background)}to{background-color:var(--ck-color-table-caption-background)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tablecaption.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,2CAAoD,CACpD,kCAA8C,CAC9C,oDACD,CAGA,8BAMC,yDAA0D,CAJ1D,gBAAiB,CAGjB,wCAAyC,CAJzC,qBAAsB,CAOtB,eAAgB,CAChB,mBAAoB,CAFpB,YAAa,CAHb,iBAAkB,CADlB,qBAOD,CAIC,qEACC,iDACD,CAEA,gEASC,eAAgB,CARhB,oBAAqB,CACrB,qBAAsB,CAQtB,sBAAuB,CAFvB,kBAGD,CAGD,sCACC,GACC,qEACD,CAEA,GACC,yDACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-table-caption-background: hsl(0, 0%, 97%);\\n\\t--ck-color-table-caption-text: hsl(0, 0%, 20%);\\n\\t--ck-color-table-caption-highlighted-background: hsl(52deg 100% 50%);\\n}\\n\\n/* Content styles */\\n.ck-content .table > figcaption {\\n\\tdisplay: table-caption;\\n\\tcaption-side: top;\\n\\tword-break: break-word;\\n\\ttext-align: center;\\n\\tcolor: var(--ck-color-table-caption-text);\\n\\tbackground-color: var(--ck-color-table-caption-background);\\n\\tpadding: .6em;\\n\\tfont-size: .75em;\\n\\toutline-offset: -1px;\\n}\\n\\n/* Editing styles */\\n.ck.ck-editor__editable .table > figcaption {\\n\\t&.table__caption_highlighted {\\n\\t\\tanimation: ck-table-caption-highlight .6s ease-out;\\n\\t}\\n\\n\\t&.ck-placeholder::before {\\n\\t\\tpadding-left: inherit;\\n\\t\\tpadding-right: inherit;\\n\\n\\t\\t/*\\n\\t\\t * Make sure the table caption placeholder doesn't overflow the placeholder area.\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/9162.\\n\\t\\t */\\n\\t\\twhite-space: nowrap;\\n\\t\\toverflow: hidden;\\n\\t\\ttext-overflow: ellipsis;\\n\\t}\\n}\\n\\n@keyframes ck-table-caption-highlight {\\n\\t0% {\\n\\t\\tbackground-color: var(--ck-color-table-caption-highlighted-background);\\n\\t}\\n\\n\\t100% {\\n\\t\\tbackground-color: var(--ck-color-table-caption-background);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row{flex-wrap:wrap}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar:first-of-type{flex-grow:0.57}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar:last-of-type{flex-grow:0.43}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar .ck-button{flex-grow:1}.ck.ck-table-cell-properties-form{width:320px}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__padding-row{align-self:flex-end;padding:0;width:25%}.ck.ck-table-cell-properties-form .ck-form__row.ck-table-cell-properties-form__alignment-row .ck.ck-toolbar{background:none;margin-top:var(--ck-spacing-standard)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tablecellproperties.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tablecellproperties.css\"],\"names\":[],\"mappings\":\"AAOE,6FACC,cAiBD,CAdE,0HAEC,cACD,CAEA,yHAEC,cACD,CAEA,uHACC,WACD,CClBJ,kCACC,WAkBD,CAfE,2FACC,mBAAoB,CACpB,SAAU,CACV,SACD,CAGC,4GACC,eAAgB,CAGhB,qCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-cell-properties-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-cell-properties-form__alignment-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\n\\t\\t\\t& .ck.ck-toolbar {\\n\\t\\t\\t\\t&:first-of-type {\\n\\t\\t\\t\\t\\t/* 4 buttons out of 7 (h-alignment + v-alignment) = 0.57 */\\n\\t\\t\\t\\t\\tflex-grow: 0.57;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t&:last-of-type {\\n\\t\\t\\t\\t\\t/* 3 buttons out of 7 (h-alignment + v-alignment) = 0.43 */\\n\\t\\t\\t\\t\\tflex-grow: 0.43;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t& .ck-button {\\n\\t\\t\\t\\t\\tflex-grow: 1;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-cell-properties-form {\\n\\twidth: 320px;\\n\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-cell-properties-form__padding-row {\\n\\t\\t\\talign-self: flex-end;\\n\\t\\t\\tpadding: 0;\\n\\t\\t\\twidth: 25%;\\n\\t\\t}\\n\\n\\t\\t&.ck-table-cell-properties-form__alignment-row {\\n\\t\\t\\t& .ck.ck-toolbar {\\n\\t\\t\\t\\tbackground: none;\\n\\n\\t\\t\\t\\t/* Compensate for missing input label that would push the margin (toolbar has no inputs). */\\n\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-table-column-resizer-hover:var(--ck-color-base-active);--ck-table-column-resizer-width:7px;--ck-table-column-resizer-position-offset:calc(var(--ck-table-column-resizer-width)*-0.5 - 0.5px)}.ck-content .table .ck-table-resized{table-layout:fixed}.ck-content .table table{overflow:hidden}.ck-content .table td,.ck-content .table th{position:relative}.ck.ck-editor__editable .table .ck-table-column-resizer{bottom:-999999px;cursor:col-resize;position:absolute;right:var(--ck-table-column-resizer-position-offset);top:-999999px;user-select:none;width:var(--ck-table-column-resizer-width);z-index:var(--ck-z-default)}.ck.ck-editor__editable .table[draggable] .ck-table-column-resizer,.ck.ck-editor__editable.ck-column-resize_disabled .table .ck-table-column-resizer{display:none}.ck.ck-editor__editable .table .ck-table-column-resizer:hover,.ck.ck-editor__editable .table .ck-table-column-resizer__active{background-color:var(--ck-color-table-column-resizer-hover);opacity:.25}.ck.ck-editor__editable[dir=rtl] .table .ck-table-column-resizer{left:var(--ck-table-column-resizer-position-offset);right:unset}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tablecolumnresize.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,iEAAkE,CAClE,mCAAoC,CAIpC,iGACD,CAEA,qCACC,kBACD,CAEA,yBACC,eACD,CAEA,4CAEC,iBACD,CAEA,wDAOC,gBAAiB,CAGjB,iBAAkB,CATlB,iBAAkB,CAOlB,oDAAqD,CAFrD,aAAc,CAKd,gBAAiB,CAFjB,0CAA2C,CAG3C,2BACD,CAQA,qJACC,YACD,CAEA,8HAEC,2DAA4D,CAC5D,WACD,CAEA,iEACC,mDAAoD,CACpD,WACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-table-column-resizer-hover: var(--ck-color-base-active);\\n\\t--ck-table-column-resizer-width: 7px;\\n\\n\\t/* The offset used for absolute positioning of the resizer element, so that it is placed exactly above the cell border.\\n\\t   The value is: minus half the width of the resizer decreased additionaly by the half the width of the border (0.5px). */\\n\\t--ck-table-column-resizer-position-offset: calc(var(--ck-table-column-resizer-width) * -0.5 - 0.5px);\\n}\\n\\n.ck-content .table .ck-table-resized {\\n\\ttable-layout: fixed;\\n}\\n\\n.ck-content .table table {\\n\\toverflow: hidden;\\n}\\n\\n.ck-content .table td,\\n.ck-content .table th {\\n\\tposition: relative;\\n}\\n\\n.ck.ck-editor__editable .table .ck-table-column-resizer {\\n\\tposition: absolute;\\n\\t/* The resizer element resides in each cell so to occupy the entire height of the table, which is unknown from a CSS point of view,\\n\\t   it is extended to an extremely high height. Even for screens with a very high pixel density, the resizer will fulfill its role as\\n\\t   it should, i.e. for a screen of 476 ppi the total height of the resizer will take over 350 sheets of A4 format, which is totally\\n\\t   unrealistic height for a single table. */\\n\\ttop: -999999px;\\n\\tbottom: -999999px;\\n\\tright: var(--ck-table-column-resizer-position-offset);\\n\\twidth: var(--ck-table-column-resizer-width);\\n\\tcursor: col-resize;\\n\\tuser-select: none;\\n\\tz-index: var(--ck-z-default);\\n}\\n\\n.ck.ck-editor__editable.ck-column-resize_disabled .table .ck-table-column-resizer {\\n\\tdisplay: none;\\n}\\n\\n/* The resizer elements, which are extended to an extremely high height, break the drag & drop feature in Chrome. 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All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-table-focused-cell-background: hsla(212, 90%, 80%, .3);\\n}\\n\\n.ck-widget.table {\\n\\t& td,\\n\\t& th {\\n\\t\\t&.ck-editor__nested-editable.ck-editor__nested-editable_focused,\\n\\t\\t&.ck-editor__nested-editable:focus {\\n\\t\\t\\t/* A very slight background to highlight the focused cell */\\n\\t\\t\\tbackground: var(--ck-color-table-focused-cell-background);\\n\\n\\t\\t\\t/* Fixes the problem where surrounding cells cover the focused cell's border.\\n\\t\\t\\tIt does not fix the problem in all places but the UX is improved.\\n\\t\\t\\tSee https://github.com/ckeditor/ckeditor5-table/issues/29. */\\n\\t\\t\\tborder-style: none;\\n\\t\\t\\toutline: 1px solid var(--ck-color-focus-border);\\n\\t\\t\\toutline-offset: -1px; /* progressive enhancement - no IE support */\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default 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\"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tableform.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tableform.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAWE,wHACC,cACD,CAEA,8DAEC,kBAAmB,CADnB,cAgBD,CAbC,qFAGC,kBAAmB,CAFnB,YAAa,CACb,6BAMD,CAEA,sMACC,WACD,CAIF,4CAEC,iBAoBD,CAlBC,8EAGC,2DAAgE,CADhE,QAAS,CADT,iBAAkB,CAGlB,8BAA+B,CAG/B,SAUD,CAPC,oFACC,UAAW,CAGX,QAAS,CAFT,iBAAkB,CAClB,wDAA6D,CAE7D,0BACD,CChDH,MACC,0CAA2C,CAC3C,2CACD,CAMI,2FACC,kCAAmC,CACnC,iBACD,CAGD,8KAIC,cAAe,CADf,cAAe,CADf,UAGD,CAGD,8DACC,SAcD,CAZC,yMAEC,QACD,CAEA,iGACC,mBAAoB,CACpB,oBAAqB,CACrB,wCAAyC,CACzC,6CAA8C,CAC9C,gCACD,CAIF,4CACC,sCAyBD,CAvBC,8ECxCD,eDyDC,CAjBA,mMCpCA,qCDqDA,CAjBA,8EAGC,qCAAsC,CACtC,qCAAsC,CAEtC,oDAAqD,CADrD,wDAAyD,CAEzD,iBAUD,CAPC,oFACC,2EAA4E,CAE5E,kBAAmB,CADnB,kJAED,CAdD,8EAgBC,iEACD,CAGA,6GACC,YACD,CAIF,oDACC,GACC,SACD,CAEA,GACC,SACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-form__border-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t}\\n\\n\\t\\t&.ck-table-form__background-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t}\\n\\n\\t\\t&.ck-table-form__dimensions-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t\\talign-items: center;\\n\\n\\t\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\t\\tdisplay: flex;\\n\\t\\t\\t\\tflex-direction: column-reverse;\\n\\t\\t\\t\\talign-items: center;\\n\\n\\t\\t\\t\\t& .ck.ck-dropdown {\\n\\t\\t\\t\\t\\tflex-grow: 0;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-table-form__dimension-operator {\\n\\t\\t\\t\\tflex-grow: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-labeled-field-view {\\n\\t\\t/* Allow absolute positioning of the status (error) balloons. */\\n\\t\\tposition: relative;\\n\\n\\t\\t& .ck.ck-labeled-field-view__status {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tbottom: calc( -1 * var(--ck-table-properties-error-arrow-size) );\\n\\t\\t\\ttransform: translate(-50%,100%);\\n\\n\\t\\t\\t/* Make sure the balloon status stays on top of other form elements. */\\n\\t\\t\\tz-index: 1;\\n\\n\\t\\t\\t/* The arrow pointing towards the field. */\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\ttop: calc( -1 * var(--ck-table-properties-error-arrow-size) );\\n\\t\\t\\t\\tleft: 50%;\\n\\t\\t\\t\\ttransform: translateX( -50% );\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-table-properties-error-arrow-size: 6px;\\n\\t--ck-table-properties-min-error-width: 150px;\\n}\\n\\n.ck.ck-table-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-form__border-row {\\n\\t\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\t\\t& > .ck-label {\\n\\t\\t\\t\\t\\tfont-size: var(--ck-font-size-tiny);\\n\\t\\t\\t\\t\\ttext-align: center;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-table-form__border-style,\\n\\t\\t\\t& .ck-table-form__border-width {\\n\\t\\t\\t\\twidth: 80px;\\n\\t\\t\\t\\tmin-width: 80px;\\n\\t\\t\\t\\tmax-width: 80px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&.ck-table-form__dimensions-row {\\n\\t\\t\\tpadding: 0;\\n\\n\\t\\t\\t& .ck-table-form__dimensions-row__width,\\n\\t\\t\\t& .ck-table-form__dimensions-row__height {\\n\\t\\t\\t\\tmargin: 0\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-table-form__dimension-operator {\\n\\t\\t\\t\\talign-self: flex-end;\\n\\t\\t\\t\\tdisplay: inline-block;\\n\\t\\t\\t\\theight: var(--ck-ui-component-min-height);\\n\\t\\t\\t\\tline-height: var(--ck-ui-component-min-height);\\n\\t\\t\\t\\tmargin: 0 var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck.ck-labeled-field-view {\\n\\t\\tpadding-top: var(--ck-spacing-standard);\\n\\n\\t\\t& .ck.ck-labeled-field-view__status {\\n\\t\\t\\t@mixin ck-rounded-corners;\\n\\n\\t\\t\\tbackground: var(--ck-color-base-error);\\n\\t\\t\\tcolor: var(--ck-color-base-background);\\n\\t\\t\\tpadding: var(--ck-spacing-small) var(--ck-spacing-medium);\\n\\t\\t\\tmin-width: var(--ck-table-properties-min-error-width);\\n\\t\\t\\ttext-align: center;\\n\\n\\t\\t\\t/* The arrow pointing towards the field. */\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tborder-color: transparent transparent var(--ck-color-base-error) transparent;\\n\\t\\t\\t\\tborder-width: 0 var(--ck-table-properties-error-arrow-size) var(--ck-table-properties-error-arrow-size) var(--ck-table-properties-error-arrow-size);\\n\\t\\t\\t\\tborder-style: solid;\\n\\t\\t\\t}\\n\\n\\t\\t\\tanimation: ck-table-form-labeled-view-status-appear .15s ease both;\\n\\t\\t}\\n\\n\\t\\t/* Hide the error balloon when the field is blurred. Makes the experience much more clear. */\\n\\t\\t& .ck-input.ck-error:not(:focus) + .ck.ck-labeled-field-view__status {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n}\\n\\n@keyframes ck-table-form-labeled-view-status-appear {\\n\\t0% {\\n\\t\\topacity: 0;\\n\\t}\\n\\n\\t100% {\\n\\t\\topacity: 1;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row{align-content:baseline;flex-basis:0;flex-wrap:wrap}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row .ck.ck-toolbar .ck-toolbar__items{flex-wrap:nowrap}.ck.ck-table-properties-form{width:320px}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row{align-self:flex-end;padding:0}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row .ck.ck-toolbar{background:none;margin-top:var(--ck-spacing-standard)}.ck.ck-table-properties-form .ck-form__row.ck-table-properties-form__alignment-row .ck.ck-toolbar .ck-toolbar__items>*{width:40px}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-table/theme/tableproperties.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tableproperties.css\"],\"names\":[],\"mappings\":\"AAOE,mFAGC,sBAAuB,CADvB,YAAa,CADb,cAOD,CAHC,qHACC,gBACD,CCTH,6BACC,WAmBD,CAhBE,mFACC,mBAAoB,CACpB,SAYD,CAVC,kGACC,eAAgB,CAGhB,qCAKD,CAHC,uHACC,UACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-properties-form {\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-properties-form__alignment-row {\\n\\t\\t\\tflex-wrap: wrap;\\n\\t\\t\\tflex-basis: 0;\\n\\t\\t\\talign-content: baseline;\\n\\n\\t\\t\\t& .ck.ck-toolbar .ck-toolbar__items {\\n\\t\\t\\t\\tflex-wrap: nowrap;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-table-properties-form {\\n\\twidth: 320px;\\n\\n\\t& .ck-form__row {\\n\\t\\t&.ck-table-properties-form__alignment-row {\\n\\t\\t\\talign-self: flex-end;\\n\\t\\t\\tpadding: 0;\\n\\n\\t\\t\\t& .ck.ck-toolbar {\\n\\t\\t\\t\\tbackground: none;\\n\\n\\t\\t\\t\\t/* Compensate for missing input label that would push the margin (toolbar has no inputs). */\\n\\t\\t\\t\\tmargin-top: var(--ck-spacing-standard);\\n\\n\\t\\t\\t\\t& .ck-toolbar__items > * {\\n\\t\\t\\t\\t\\twidth: 40px;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-table-selected-cell-background:rgba(158,207,250,.3)}.ck.ck-editor__editable .table table td.ck-editor__editable_selected,.ck.ck-editor__editable .table table th.ck-editor__editable_selected{box-shadow:unset;caret-color:transparent;outline:unset;position:relative}.ck.ck-editor__editable .table table td.ck-editor__editable_selected:after,.ck.ck-editor__editable .table table th.ck-editor__editable_selected:after{background-color:var(--ck-table-selected-cell-background);bottom:0;content:\\\"\\\";left:0;pointer-events:none;position:absolute;right:0;top:0}.ck.ck-editor__editable .table table td.ck-editor__editable_selected ::selection,.ck.ck-editor__editable .table table td.ck-editor__editable_selected:focus,.ck.ck-editor__editable .table table th.ck-editor__editable_selected ::selection,.ck.ck-editor__editable .table table th.ck-editor__editable_selected:focus{background-color:transparent}.ck.ck-editor__editable .table table td.ck-editor__editable_selected .ck-widget,.ck.ck-editor__editable .table table th.ck-editor__editable_selected .ck-widget{outline:unset}.ck.ck-editor__editable .table table td.ck-editor__editable_selected .ck-widget>.ck-widget__selection-handle,.ck.ck-editor__editable .table table th.ck-editor__editable_selected .ck-widget>.ck-widget__selection-handle{display:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-table/tableselection.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,wDACD,CAGC,0IAKC,gBAAiB,CAFjB,uBAAwB,CACxB,aAAc,CAFd,iBAiCD,CA3BC,sJAGC,yDAA0D,CAK1D,QAAS,CAPT,UAAW,CAKX,MAAO,CAJP,mBAAoB,CAEpB,iBAAkB,CAGlB,OAAQ,CAFR,KAID,CAEA,wTAEC,4BACD,CAMA,gKACC,aAKD,CAHC,0NACC,YACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-table-selected-cell-background: hsla(208, 90%, 80%, .3);\\n}\\n\\n.ck.ck-editor__editable .table table {\\n\\t& td.ck-editor__editable_selected,\\n\\t& th.ck-editor__editable_selected {\\n\\t\\tposition: relative;\\n\\t\\tcaret-color: transparent;\\n\\t\\toutline: unset;\\n\\t\\tbox-shadow: unset;\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5/issues/6446 */\\n\\t\\t&:after {\\n\\t\\t\\tcontent: '';\\n\\t\\t\\tpointer-events: none;\\n\\t\\t\\tbackground-color: var(--ck-table-selected-cell-background);\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\ttop: 0;\\n\\t\\t\\tleft: 0;\\n\\t\\t\\tright: 0;\\n\\t\\t\\tbottom: 0;\\n\\t\\t}\\n\\n\\t\\t& ::selection,\\n\\t\\t&:focus {\\n\\t\\t\\tbackground-color: transparent;\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * To reduce the amount of noise, all widgets in the table selection have no outline and no selection handle.\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/9491.\\n\\t\\t */\\n\\t\\t& .ck-widget {\\n\\t\\t\\toutline: unset;\\n\\n\\t\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\t\\tdisplay: none;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-button,a.ck.ck-button{align-items:center;display:inline-flex;justify-content:left;position:relative;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-button .ck-button__label,a.ck.ck-button .ck-button__label{display:none}.ck.ck-button.ck-button_with-text .ck-button__label,a.ck.ck-button.ck-button_with-text .ck-button__label{display:inline-block}.ck.ck-button:not(.ck-button_with-text),a.ck.ck-button:not(.ck-button_with-text){justify-content:center}.ck.ck-button,a.ck.ck-button{background:var(--ck-color-button-default-background)}.ck.ck-button:not(.ck-disabled):hover,a.ck.ck-button:not(.ck-disabled):hover{background:var(--ck-color-button-default-hover-background)}.ck.ck-button:not(.ck-disabled):active,a.ck.ck-button:not(.ck-disabled):active{background:var(--ck-color-button-default-active-background)}.ck.ck-button.ck-disabled,a.ck.ck-button.ck-disabled{background:var(--ck-color-button-default-disabled-background)}.ck.ck-button,a.ck.ck-button{border-radius:0}.ck-rounded-corners .ck.ck-button,.ck-rounded-corners a.ck.ck-button,.ck.ck-button.ck-rounded-corners,a.ck.ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-button,a.ck.ck-button{-webkit-appearance:none;border:1px solid transparent;cursor:default;font-size:inherit;line-height:1;min-height:var(--ck-ui-component-min-height);min-width:var(--ck-ui-component-min-height);padding:var(--ck-spacing-tiny);text-align:center;transition:box-shadow .2s ease-in-out,border .2s ease-in-out;vertical-align:middle;white-space:nowrap}.ck.ck-button:active,.ck.ck-button:focus,a.ck.ck-button:active,a.ck.ck-button:focus{border:var(--ck-focus-ring);box-shadow:var(--ck-focus-outer-shadow),0 0;outline:none}.ck.ck-button .ck-button__icon use,.ck.ck-button .ck-button__icon use *,a.ck.ck-button .ck-button__icon use,a.ck.ck-button .ck-button__icon use *{color:inherit}.ck.ck-button .ck-button__label,a.ck.ck-button .ck-button__label{color:inherit;cursor:inherit;font-size:inherit;font-weight:inherit;vertical-align:middle}[dir=ltr] .ck.ck-button .ck-button__label,[dir=ltr] a.ck.ck-button .ck-button__label{text-align:left}[dir=rtl] .ck.ck-button .ck-button__label,[dir=rtl] a.ck.ck-button .ck-button__label{text-align:right}.ck.ck-button .ck-button__keystroke,a.ck.ck-button .ck-button__keystroke{color:inherit}[dir=ltr] .ck.ck-button .ck-button__keystroke,[dir=ltr] a.ck.ck-button .ck-button__keystroke{margin-left:var(--ck-spacing-large)}[dir=rtl] .ck.ck-button .ck-button__keystroke,[dir=rtl] a.ck.ck-button .ck-button__keystroke{margin-right:var(--ck-spacing-large)}.ck.ck-button .ck-button__keystroke,a.ck.ck-button .ck-button__keystroke{font-weight:700;opacity:.7}.ck.ck-button.ck-disabled:active,.ck.ck-button.ck-disabled:focus,a.ck.ck-button.ck-disabled:active,a.ck.ck-button.ck-disabled:focus{box-shadow:var(--ck-focus-disabled-outer-shadow),0 0}.ck.ck-button.ck-disabled .ck-button__icon,.ck.ck-button.ck-disabled .ck-button__label,a.ck.ck-button.ck-disabled .ck-button__icon,a.ck.ck-button.ck-disabled .ck-button__label{opacity:var(--ck-disabled-opacity)}.ck.ck-button.ck-disabled .ck-button__keystroke,a.ck.ck-button.ck-disabled .ck-button__keystroke{opacity:.3}.ck.ck-button.ck-button_with-text,a.ck.ck-button.ck-button_with-text{padding:var(--ck-spacing-tiny) var(--ck-spacing-standard)}[dir=ltr] .ck.ck-button.ck-button_with-text .ck-button__icon,[dir=ltr] a.ck.ck-button.ck-button_with-text .ck-button__icon{margin-left:calc(var(--ck-spacing-small)*-1);margin-right:var(--ck-spacing-small)}[dir=rtl] .ck.ck-button.ck-button_with-text .ck-button__icon,[dir=rtl] a.ck.ck-button.ck-button_with-text .ck-button__icon{margin-left:var(--ck-spacing-small);margin-right:calc(var(--ck-spacing-small)*-1)}.ck.ck-button.ck-button_with-keystroke .ck-button__label,a.ck.ck-button.ck-button_with-keystroke .ck-button__label{flex-grow:1}.ck.ck-button.ck-on,a.ck.ck-button.ck-on{background:var(--ck-color-button-on-background)}.ck.ck-button.ck-on:not(.ck-disabled):hover,a.ck.ck-button.ck-on:not(.ck-disabled):hover{background:var(--ck-color-button-on-hover-background)}.ck.ck-button.ck-on:not(.ck-disabled):active,a.ck.ck-button.ck-on:not(.ck-disabled):active{background:var(--ck-color-button-on-active-background)}.ck.ck-button.ck-on.ck-disabled,a.ck.ck-button.ck-on.ck-disabled{background:var(--ck-color-button-on-disabled-background)}.ck.ck-button.ck-on,a.ck.ck-button.ck-on{color:var(--ck-color-button-on-color)}.ck.ck-button.ck-button-save,a.ck.ck-button.ck-button-save{color:var(--ck-color-button-save)}.ck.ck-button.ck-button-cancel,a.ck.ck-button.ck-button-cancel{color:var(--ck-color-button-cancel)}.ck.ck-button-action,a.ck.ck-button-action{background:var(--ck-color-button-action-background)}.ck.ck-button-action:not(.ck-disabled):hover,a.ck.ck-button-action:not(.ck-disabled):hover{background:var(--ck-color-button-action-hover-background)}.ck.ck-button-action:not(.ck-disabled):active,a.ck.ck-button-action:not(.ck-disabled):active{background:var(--ck-color-button-action-active-background)}.ck.ck-button-action.ck-disabled,a.ck.ck-button-action.ck-disabled{background:var(--ck-color-button-action-disabled-background)}.ck.ck-button-action,a.ck.ck-button-action{color:var(--ck-color-button-action-text)}.ck.ck-button-bold,a.ck.ck-button-bold{font-weight:700}\", 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* Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../mixins/_unselectable.css\\\";\\n\\n.ck.ck-button,\\na.ck.ck-button {\\n\\t@mixin ck-unselectable;\\n\\n\\tposition: relative;\\n\\tdisplay: inline-flex;\\n\\talign-items: center;\\n\\tjustify-content: left;\\n\\n\\t& .ck-button__label {\\n\\t\\tdisplay: none;\\n\\t}\\n\\n\\t&.ck-button_with-text {\\n\\t\\t& .ck-button__label {\\n\\t\\t\\tdisplay: inline-block;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Center the icon horizontally in a button without text. */\\n\\t&:not(.ck-button_with-text)  {\\n\\t\\tjustify-content: center;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Makes element unselectable.\\n */\\n@define-mixin ck-unselectable {\\n\\t-moz-user-select: none;\\n\\t-webkit-user-select: none;\\n\\t-ms-user-select: none;\\n\\tuser-select: none\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_focus.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../mixins/_button.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-button,\\na.ck.ck-button {\\n\\t@mixin ck-button-colors --ck-color-button-default;\\n\\t@mixin ck-rounded-corners;\\n\\n\\twhite-space: nowrap;\\n\\tcursor: default;\\n\\tvertical-align: middle;\\n\\tpadding: var(--ck-spacing-tiny);\\n\\ttext-align: center;\\n\\n\\t/* A very important piece of styling. Go to variable declaration to learn more. */\\n\\tmin-width: var(--ck-ui-component-min-height);\\n\\tmin-height: var(--ck-ui-component-min-height);\\n\\n\\t/* Normalize the height of the line. Removing this will break consistent height\\n\\tamong text and text-less buttons (with icons). */\\n\\tline-height: 1;\\n\\n\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\tfont-size: inherit;\\n\\n\\t/* Avoid flickering when the foucs border shows up. */\\n\\tborder: 1px solid transparent;\\n\\n\\t/* Apply some smooth transition to the box-shadow and border. */\\n\\ttransition: box-shadow .2s ease-in-out, border .2s ease-in-out;\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/189 */\\n\\t-webkit-appearance: none;\\n\\n\\t&:active,\\n\\t&:focus {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\\n\\t}\\n\\n\\t/* Allow icon coloring using the text \\\"color\\\" property. */\\n\\t& .ck-button__icon {\\n\\t\\t& use,\\n\\t\\t& use * {\\n\\t\\t\\tcolor: inherit;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-button__label {\\n\\t\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\t\\tfont-size: inherit;\\n\\t\\tfont-weight: inherit;\\n\\t\\tcolor: inherit;\\n\\t\\tcursor: inherit;\\n\\n\\t\\t/* Must be consistent with .ck-icon's vertical align. Otherwise, buttons with and\\n\\t\\twithout labels (but with icons) have different sizes in Chrome */\\n\\t\\tvertical-align: middle;\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\ttext-align: left;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\ttext-align: right;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-button__keystroke {\\n\\t\\tcolor: inherit;\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\tmargin-left: var(--ck-spacing-large);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\tmargin-right: var(--ck-spacing-large);\\n\\t\\t}\\n\\n\\t\\tfont-weight: bold;\\n\\t\\topacity: .7;\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/70 */\\n\\t&.ck-disabled {\\n\\t\\t&:active,\\n\\t\\t&:focus {\\n\\t\\t\\t/* The disabled button should have a slightly less visible shadow when focused. */\\n\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-disabled-outer-shadow);\\n\\t\\t}\\n\\n\\t\\t& .ck-button__icon {\\n\\t\\t\\t@mixin ck-disabled;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/98 */\\n\\t\\t& .ck-button__label {\\n\\t\\t\\t@mixin ck-disabled;\\n\\t\\t}\\n\\n\\t\\t& .ck-button__keystroke {\\n\\t\\t\\topacity: .3;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-button_with-text {\\n\\t\\tpadding: var(--ck-spacing-tiny) var(--ck-spacing-standard);\\n\\n\\t\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t\\t& .ck-button__icon {\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: calc(-1 * var(--ck-spacing-small));\\n\\t\\t\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-right: calc(-1 * var(--ck-spacing-small));\\n\\t\\t\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-button_with-keystroke {\\n\\t\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t\\t& .ck-button__label {\\n\\t\\t\\tflex-grow: 1;\\n\\t\\t}\\n\\t}\\n\\n\\t/* A style of the button which is currently on, e.g. its feature is active. */\\n\\t&.ck-on {\\n\\t\\t@mixin ck-button-colors --ck-color-button-on;\\n\\n\\t\\tcolor: var(--ck-color-button-on-color);\\n\\t}\\n\\n\\t&.ck-button-save {\\n\\t\\tcolor: var(--ck-color-button-save);\\n\\t}\\n\\n\\t&.ck-button-cancel {\\n\\t\\tcolor: var(--ck-color-button-cancel);\\n\\t}\\n}\\n\\n/* A style of the button which handles the primary action. */\\n.ck.ck-button-action,\\na.ck.ck-button-action {\\n\\t@mixin ck-button-colors --ck-color-button-action;\\n\\n\\tcolor: var(--ck-color-button-action-text);\\n}\\n\\n.ck.ck-button-bold,\\na.ck.ck-button-bold {\\n\\tfont-weight: bold;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements a button of given background color.\\n *\\n * @param {String} $background - Background color of the button.\\n * @param {String} $border - Border color of the button.\\n */\\n@define-mixin ck-button-colors $prefix {\\n\\tbackground: var($(prefix)-background);\\n\\n\\t&:not(.ck-disabled) {\\n\\t\\t&:hover {\\n\\t\\t\\tbackground: var($(prefix)-hover-background);\\n\\t\\t}\\n\\n\\t\\t&:active {\\n\\t\\t\\tbackground: var($(prefix)-active-background);\\n\\t\\t}\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/98 */\\n\\t&.ck-disabled {\\n\\t\\tbackground: var($(prefix)-disabled-background);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class which indicates that an element holding it is disabled.\\n */\\n@define-mixin ck-disabled {\\n\\topacity: var(--ck-disabled-opacity);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-button.ck-switchbutton .ck-button__toggle,.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner{display:block}:root{--ck-switch-button-toggle-width:2.6153846154em;--ck-switch-button-toggle-inner-size:calc(1.07692em + 1px);--ck-switch-button-translation:calc(var(--ck-switch-button-toggle-width) - var(--ck-switch-button-toggle-inner-size) - 2px);--ck-switch-button-inner-hover-shadow:0 0 0 5px var(--ck-color-switch-button-inner-shadow)}.ck.ck-button.ck-switchbutton,.ck.ck-button.ck-switchbutton.ck-on:active,.ck.ck-button.ck-switchbutton.ck-on:focus,.ck.ck-button.ck-switchbutton.ck-on:hover,.ck.ck-button.ck-switchbutton:active,.ck.ck-button.ck-switchbutton:focus,.ck.ck-button.ck-switchbutton:hover{background:transparent;color:inherit}[dir=ltr] .ck.ck-button.ck-switchbutton .ck-button__label{margin-right:calc(var(--ck-spacing-large)*2)}[dir=rtl] .ck.ck-button.ck-switchbutton .ck-button__label{margin-left:calc(var(--ck-spacing-large)*2)}.ck.ck-button.ck-switchbutton .ck-button__toggle{border-radius:0}.ck-rounded-corners .ck.ck-button.ck-switchbutton .ck-button__toggle,.ck.ck-button.ck-switchbutton .ck-button__toggle.ck-rounded-corners{border-radius:var(--ck-border-radius)}[dir=ltr] .ck.ck-button.ck-switchbutton .ck-button__toggle{margin-left:auto}[dir=rtl] .ck.ck-button.ck-switchbutton .ck-button__toggle{margin-right:auto}.ck.ck-button.ck-switchbutton .ck-button__toggle{background:var(--ck-color-switch-button-off-background);border:1px solid transparent;transition:background .4s ease,box-shadow .2s ease-in-out,outline .2s ease-in-out;width:var(--ck-switch-button-toggle-width)}.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner{border-radius:0}.ck-rounded-corners .ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner,.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner.ck-rounded-corners{border-radius:var(--ck-border-radius);border-radius:calc(var(--ck-border-radius)*.5)}.ck.ck-button.ck-switchbutton .ck-button__toggle .ck-button__toggle__inner{background:var(--ck-color-switch-button-inner-background);height:var(--ck-switch-button-toggle-inner-size);transition:all .3s ease;width:var(--ck-switch-button-toggle-inner-size)}.ck.ck-button.ck-switchbutton .ck-button__toggle:hover{background:var(--ck-color-switch-button-off-hover-background)}.ck.ck-button.ck-switchbutton .ck-button__toggle:hover .ck-button__toggle__inner{box-shadow:var(--ck-switch-button-inner-hover-shadow)}.ck.ck-button.ck-switchbutton.ck-disabled .ck-button__toggle{opacity:var(--ck-disabled-opacity)}.ck.ck-button.ck-switchbutton:focus{border-color:transparent;box-shadow:none;outline:none}.ck.ck-button.ck-switchbutton:focus .ck-button__toggle{box-shadow:0 0 0 1px var(--ck-color-base-background),0 0 0 5px var(--ck-color-focus-outer-shadow);outline:var(--ck-focus-ring);outline-offset:1px}.ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle{background:var(--ck-color-switch-button-on-background)}.ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle:hover{background:var(--ck-color-switch-button-on-hover-background)}[dir=ltr] .ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle .ck-button__toggle__inner{transform:translateX(var( --ck-switch-button-translation ))}[dir=rtl] .ck.ck-button.ck-switchbutton.ck-on .ck-button__toggle .ck-button__toggle__inner{transform:translateX(calc(var( --ck-switch-button-translation )*-1))}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/button/switchbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/button/switchbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_disabled.css\"],\"names\":[],\"mappings\":\"AASE,4HACC,aACD,CCCF,MAEC,8CAA+C,CAE/C,0DAAgE,CAChE,2HAIC,CACD,0FACD,CAOC,0QAEC,sBAAuB,CADvB,aAED,CAEA,0DAGE,4CAOF,CAVA,0DAQE,2CAEF,CAEA,iDCpCA,eD4EA,CAxCA,yIChCC,qCDwED,CAxCA,2DAKE,gBAmCF,CAxCA,2DAUE,iBA8BF,CAxCA,iDAkBC,uDAAwD,CAFxD,4BAA6B,CAD7B,iFAAsF,CAEtF,0CAuBD,CApBC,2ECxDD,eDmEC,CAXA,6LCpDA,qCAAsC,CDsDpC,8CASF,CAXA,2EAOC,yDAA0D,CAD1D,gDAAiD,CAIjD,uBAA0B,CAL1B,+CAMD,CAEA,uDACC,6DAKD,CAHC,iFACC,qDACD,CAIF,6DEhFA,kCFkFA,CAGA,oCACC,wBAAyB,CAEzB,eAAgB,CADhB,YAQD,CALC,uDACC,iGAAmG,CAEnG,4BAA6B,CAD7B,kBAED,CAKA,uDACC,sDAkBD,CAhBC,6DACC,4DACD,CAEA,2FAKE,2DAMF,CAXA,2FASE,oEAEF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-button.ck-switchbutton {\\n\\t& .ck-button__toggle {\\n\\t\\tdisplay: block;\\n\\n\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\tdisplay: block;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n/* Note: To avoid rendering issues (aliasing) but to preserve the responsive nature\\nof the component, floating–point numbers have been used which, for the default font size\\n(see: --ck-font-size-base), will generate simple integers. */\\n:root {\\n\\t/* 34px at 13px font-size */\\n\\t--ck-switch-button-toggle-width: 2.6153846154em;\\n\\t/* 14px at 13px font-size */\\n\\t--ck-switch-button-toggle-inner-size: calc(1.0769230769em + 1px);\\n\\t--ck-switch-button-translation: calc(\\n\\t\\tvar(--ck-switch-button-toggle-width) -\\n\\t\\tvar(--ck-switch-button-toggle-inner-size) -\\n\\t\\t2px /* Border */\\n\\t);\\n\\t--ck-switch-button-inner-hover-shadow: 0 0 0 5px var(--ck-color-switch-button-inner-shadow);\\n}\\n\\n.ck.ck-button.ck-switchbutton {\\n\\t/* Unlike a regular button, the switch button text color and background should never change.\\n\\t * Changing toggle switch (background, outline) is enough to carry the information about the\\n\\t * state of the entire component (https://github.com/ckeditor/ckeditor5/issues/12519)\\n\\t */\\n\\t&, &:hover, &:focus, &:active, &.ck-on:hover, &.ck-on:focus, &.ck-on:active {\\n\\t\\tcolor: inherit;\\n\\t\\tbackground: transparent;\\n\\t}\\n\\n\\t& .ck-button__label {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t/* Separate the label from the switch */\\n\\t\\t\\tmargin-right: calc(2 * var(--ck-spacing-large));\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t/* Separate the label from the switch */\\n\\t\\t\\tmargin-left: calc(2 * var(--ck-spacing-large));\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-button__toggle {\\n\\t\\t@mixin ck-rounded-corners;\\n\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t/* Make sure the toggle is always to the right as far as possible. */\\n\\t\\t\\tmargin-left: auto;\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t/* Make sure the toggle is always to the left as far as possible. */\\n\\t\\t\\tmargin-right: auto;\\n\\t\\t}\\n\\n\\t\\t/* Apply some smooth transition to the box-shadow and border. */\\n\\t\\t/* Gently animate the background color of the toggle switch */\\n\\t\\ttransition: background 400ms ease, box-shadow .2s ease-in-out, outline .2s ease-in-out;\\n\\t\\tborder: 1px solid transparent;\\n\\t\\twidth: var(--ck-switch-button-toggle-width);\\n\\t\\tbackground: var(--ck-color-switch-button-off-background);\\n\\n\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t\\tborder-radius: calc(.5 * var(--ck-border-radius));\\n\\t\\t\\t}\\n\\n\\t\\t\\twidth: var(--ck-switch-button-toggle-inner-size);\\n\\t\\t\\theight: var(--ck-switch-button-toggle-inner-size);\\n\\t\\t\\tbackground: var(--ck-color-switch-button-inner-background);\\n\\n\\t\\t\\t/* Gently animate the inner part of the toggle switch */\\n\\t\\t\\ttransition: all 300ms ease;\\n\\t\\t}\\n\\n\\t\\t&:hover {\\n\\t\\t\\tbackground: var(--ck-color-switch-button-off-hover-background);\\n\\n\\t\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\t\\tbox-shadow: var(--ck-switch-button-inner-hover-shadow);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-disabled .ck-button__toggle {\\n\\t\\t@mixin ck-disabled;\\n\\t}\\n\\n\\t/* Overriding default .ck-button:focus styles + an outline around the toogle */\\n\\t&:focus {\\n\\t\\tborder-color: transparent;\\n\\t\\toutline: none;\\n\\t\\tbox-shadow: none;\\n\\n\\t\\t& .ck-button__toggle {\\n\\t\\t\\tbox-shadow: 0 0 0 1px var(--ck-color-base-background), 0 0 0 5px var(--ck-color-focus-outer-shadow);\\n\\t\\t\\toutline-offset: 1px;\\n\\t\\t\\toutline: var(--ck-focus-ring);\\n\\t\\t}\\n\\t}\\n\\n\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t&.ck-on {\\n\\t\\t& .ck-button__toggle {\\n\\t\\t\\tbackground: var(--ck-color-switch-button-on-background);\\n\\n\\t\\t\\t&:hover {\\n\\t\\t\\t\\tbackground: var(--ck-color-switch-button-on-hover-background);\\n\\t\\t\\t}\\n\\n\\t\\t\\t& .ck-button__toggle__inner {\\n\\t\\t\\t\\t/*\\n\\t\\t\\t\\t* Move the toggle switch to the right. It will be animated.\\n\\t\\t\\t\\t*/\\n\\t\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\t\\ttransform: translateX( var( --ck-switch-button-translation ) );\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\t\\ttransform: translateX( calc( -1 * var( --ck-switch-button-translation ) ) );\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class which indicates that an element holding it is disabled.\\n */\\n@define-mixin ck-disabled {\\n\\topacity: var(--ck-disabled-opacity);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-color-grid{display:grid}:root{--ck-color-grid-tile-size:24px;--ck-color-color-grid-check-icon:#166fd4}.ck.ck-color-grid{grid-gap:5px;padding:8px}.ck.ck-color-grid__tile{border:0;height:var(--ck-color-grid-tile-size);min-height:var(--ck-color-grid-tile-size);min-width:var(--ck-color-grid-tile-size);padding:0;transition:box-shadow .2s ease;width:var(--ck-color-grid-tile-size)}.ck.ck-color-grid__tile.ck-disabled{cursor:unset;transition:unset}.ck.ck-color-grid__tile.ck-color-table__color-tile_bordered{box-shadow:0 0 0 1px var(--ck-color-base-border)}.ck.ck-color-grid__tile .ck.ck-icon{color:var(--ck-color-color-grid-check-icon);display:none}.ck.ck-color-grid__tile.ck-on{box-shadow:inset 0 0 0 1px var(--ck-color-base-background),0 0 0 2px var(--ck-color-base-text)}.ck.ck-color-grid__tile.ck-on .ck.ck-icon{display:block}.ck.ck-color-grid__tile.ck-on,.ck.ck-color-grid__tile:focus:not(.ck-disabled),.ck.ck-color-grid__tile:hover:not(.ck-disabled){border:0}.ck.ck-color-grid__tile:focus:not(.ck-disabled),.ck.ck-color-grid__tile:hover:not(.ck-disabled){box-shadow:inset 0 0 0 1px var(--ck-color-base-background),0 0 0 2px var(--ck-color-focus-border)}.ck.ck-color-grid__label{padding:0 var(--ck-spacing-standard)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/colorgrid/colorgrid.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/colorgrid/colorgrid.css\"],\"names\":[],\"mappings\":\"AAKA,kBACC,YACD,CCAA,MACC,8BAA+B,CAK/B,wCACD,CAEA,kBACC,YAAa,CACb,WACD,CAEA,wBAOC,QAAS,CALT,qCAAsC,CAEtC,yCAA0C,CAD1C,wCAAyC,CAEzC,SAAU,CACV,8BAA+B,CAL/B,oCAyCD,CAjCC,oCACC,YAAa,CACb,gBACD,CAEA,4DACC,gDACD,CAEA,oCAEC,2CAA4C,CAD5C,YAED,CAEA,8BACC,8FAKD,CAHC,0CACC,aACD,CAGD,8HAIC,QACD,CAEA,gGAEC,iGACD,CAGD,yBACC,oCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-color-grid {\\n\\tdisplay: grid;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-color-grid-tile-size: 24px;\\n\\n\\t/* Not using global colors here because these may change but some colors in a pallette\\n\\t * require special treatment. For instance, this ensures no matter what the UI text color is,\\n\\t * the check icon will look good on the black color tile. */\\n\\t--ck-color-color-grid-check-icon: hsl(212, 81%, 46%);\\n}\\n\\n.ck.ck-color-grid {\\n\\tgrid-gap: 5px;\\n\\tpadding: 8px;\\n}\\n\\n.ck.ck-color-grid__tile {\\n\\twidth: var(--ck-color-grid-tile-size);\\n\\theight: var(--ck-color-grid-tile-size);\\n\\tmin-width: var(--ck-color-grid-tile-size);\\n\\tmin-height: var(--ck-color-grid-tile-size);\\n\\tpadding: 0;\\n\\ttransition: .2s ease box-shadow;\\n\\tborder: 0;\\n\\n\\t&.ck-disabled {\\n\\t\\tcursor: unset;\\n\\t\\ttransition: unset;\\n\\t}\\n\\n\\t&.ck-color-table__color-tile_bordered {\\n\\t\\tbox-shadow: 0 0 0 1px var(--ck-color-base-border);\\n\\t}\\n\\n\\t& .ck.ck-icon {\\n\\t\\tdisplay: none;\\n\\t\\tcolor: var(--ck-color-color-grid-check-icon);\\n\\t}\\n\\n\\t&.ck-on {\\n\\t\\tbox-shadow: inset 0 0 0 1px var(--ck-color-base-background), 0 0 0 2px var(--ck-color-base-text);\\n\\n\\t\\t& .ck.ck-icon {\\n\\t\\t\\tdisplay: block;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-on,\\n\\t&:focus:not( .ck-disabled ),\\n\\t&:hover:not( .ck-disabled ) {\\n\\t\\t/* Disable the default .ck-button's border ring. */\\n\\t\\tborder: 0;\\n\\t}\\n\\n\\t&:focus:not( .ck-disabled ),\\n\\t&:hover:not( .ck-disabled ) {\\n\\t\\tbox-shadow: inset 0 0 0 1px var(--ck-color-base-background), 0 0 0 2px var(--ck-color-focus-border);\\n\\t}\\n}\\n\\n.ck.ck-color-grid__label {\\n\\tpadding: 0 var(--ck-spacing-standard);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, 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* Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-dropdown-max-width: 75vw;\\n}\\n\\n.ck.ck-dropdown {\\n\\tdisplay: inline-block;\\n\\tposition: relative;\\n\\n\\t& .ck-dropdown__arrow {\\n\\t\\tpointer-events: none;\\n\\t\\tz-index: var(--ck-z-default);\\n\\t}\\n\\n\\t/* Dropdown button should span horizontally, e.g. in vertical toolbars */\\n\\t& .ck-button.ck-dropdown__button {\\n\\t\\twidth: 100%;\\n\\t}\\n\\n\\t& .ck-dropdown__panel {\\n\\t\\tdisplay: none;\\n\\t\\tz-index: var(--ck-z-modal);\\n\\t\\tmax-width: var(--ck-dropdown-max-width);\\n\\n\\t\\tposition: absolute;\\n\\n\\t\\t&.ck-dropdown__panel-visible {\\n\\t\\t\\tdisplay: inline-block;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_ne,\\n\\t\\t&.ck-dropdown__panel_nw,\\n\\t\\t&.ck-dropdown__panel_n,\\n\\t\\t&.ck-dropdown__panel_nmw,\\n\\t\\t&.ck-dropdown__panel_nme {\\n\\t\\t\\tbottom: 100%;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_se,\\n\\t\\t&.ck-dropdown__panel_sw,\\n\\t\\t&.ck-dropdown__panel_smw,\\n\\t\\t&.ck-dropdown__panel_sme,\\n\\t\\t&.ck-dropdown__panel_s {\\n\\t\\t\\t/*\\n\\t\\t\\t * Using transform: translate3d( 0, 100%, 0 ) causes blurry dropdown on Chrome 67-78+ on non-retina displays.\\n\\t\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/1053.\\n\\t\\t\\t */\\n\\t\\t\\ttop: 100%;\\n\\t\\t\\tbottom: auto;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_ne,\\n\\t\\t&.ck-dropdown__panel_se {\\n\\t\\t\\tleft: 0px;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_nw,\\n\\t\\t&.ck-dropdown__panel_sw {\\n\\t\\t\\tright: 0px;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_s,\\n\\t\\t&.ck-dropdown__panel_n {\\n\\t\\t\\t/* Positioning panels relative to the center of the button */\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\ttransform: translateX(-50%);\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_nmw,\\n\\t\\t&.ck-dropdown__panel_smw {\\n\\t\\t\\t/* Positioning panels relative to the middle-west of the button */\\n\\t\\t\\tleft: 75%;\\n\\t\\t\\ttransform: translateX(-75%);\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__panel_nme,\\n\\t\\t&.ck-dropdown__panel_sme {\\n\\t\\t\\t/* Positioning panels relative to the middle-east of the button */\\n\\t\\t\\tleft: 25%;\\n\\t\\t\\ttransform: translateX(-25%);\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Toolbar dropdown panels should be always above the UI (eg. other dropdown panels) from the editor's content.\\n * See https://github.com/ckeditor/ckeditor5/issues/7874\\n */\\n.ck.ck-toolbar .ck-dropdown__panel {\\n\\tz-index: calc( var(--ck-z-modal) + 1 );\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n:root {\\n\\t--ck-dropdown-arrow-size: calc(0.5 * var(--ck-icon-size));\\n}\\n\\n.ck.ck-dropdown {\\n\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\tfont-size: inherit;\\n\\n\\t& .ck-dropdown__arrow {\\n\\t\\twidth: var(--ck-dropdown-arrow-size);\\n\\t}\\n\\n\\t@mixin ck-dir ltr {\\n\\t\\t& .ck-dropdown__arrow {\\n\\t\\t\\tright: var(--ck-spacing-standard);\\n\\n\\t\\t\\t/* A space to accommodate the triangle. */\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir rtl {\\n\\t\\t& .ck-dropdown__arrow {\\n\\t\\t\\tleft: var(--ck-spacing-standard);\\n\\n\\t\\t\\t/* A space to accommodate the triangle. */\\n\\t\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-disabled .ck-dropdown__arrow {\\n\\t\\t@mixin ck-disabled;\\n\\t}\\n\\n\\t& .ck-button.ck-dropdown__button {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t&:not(.ck-button_with-text) {\\n\\t\\t\\t\\t/* Make sure dropdowns with just an icon have the right inner spacing */\\n\\t\\t\\t\\tpadding-left: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t&:not(.ck-button_with-text) {\\n\\t\\t\\t\\t/* Make sure dropdowns with just an icon have the right inner spacing */\\n\\t\\t\\t\\tpadding-right: var(--ck-spacing-small);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* #23 */\\n\\t\\t& .ck-button__label {\\n\\t\\t\\twidth: 7em;\\n\\t\\t\\toverflow: hidden;\\n\\t\\t\\ttext-overflow: ellipsis;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/70 */\\n\\t\\t&.ck-disabled .ck-button__label {\\n\\t\\t\\t@mixin ck-disabled;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t\\t&.ck-on {\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t&.ck-dropdown__button_label-width_auto .ck-button__label {\\n\\t\\t\\twidth: auto;\\n\\t\\t}\\n\\n\\t\\t/* https://github.com/ckeditor/ckeditor5/issues/8699 */\\n\\t\\t&.ck-off:active,\\n\\t\\t&.ck-on:active {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t\\t\\n\\t\\t\\t&:focus {\\n\\t\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-dropdown__panel {\\n\\t@mixin ck-rounded-corners;\\n\\t@mixin ck-drop-shadow;\\n\\n\\tbackground: var(--ck-color-dropdown-panel-background);\\n\\tborder: 1px solid var(--ck-color-dropdown-panel-border);\\n\\tbottom: 0;\\n\\n\\t/* Make sure the panel is at least as wide as the drop-down's button. */\\n\\tmin-width: 100%;\\n\\n\\t/* Disabled corner border radius to be consistent with the .dropdown__button\\n\\thttps://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t&.ck-dropdown__panel_se {\\n\\t\\tborder-top-left-radius: 0;\\n\\t}\\n\\n\\t&.ck-dropdown__panel_sw {\\n\\t\\tborder-top-right-radius: 0;\\n\\t}\\n\\n\\t&.ck-dropdown__panel_ne {\\n\\t\\tborder-bottom-left-radius: 0;\\n\\t}\\n\\n\\t&.ck-dropdown__panel_nw {\\n\\t\\tborder-bottom-right-radius: 0;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class which indicates that an element holding it is disabled.\\n */\\n@define-mixin ck-disabled {\\n\\topacity: var(--ck-disabled-opacity);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-dropdown .ck-dropdown__panel .ck-list{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list,.ck.ck-dropdown .ck-dropdown__panel .ck-list.ck-rounded-corners{border-radius:var(--ck-border-radius);border-top-left-radius:0}.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button,.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:first-child .ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius);border-bottom-left-radius:0;border-bottom-right-radius:0;border-top-left-radius:0}.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button{border-radius:0}.ck-rounded-corners .ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button,.ck.ck-dropdown .ck-dropdown__panel .ck-list .ck-list__item:last-child .ck-button.ck-rounded-corners{border-radius:var(--ck-border-radius);border-top-left-radius:0;border-top-right-radius:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/listdropdown.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAOA,6CCIC,eDqBD,CAzBA,iICQE,qCAAsC,CDJtC,wBAqBF,CAfE,mFCND,eDYC,CANA,6MCFA,qCAAsC,CDKpC,2BAA4B,CAC5B,4BAA6B,CAF7B,wBAIF,CAEA,kFCdD,eDmBC,CALA,2MCVA,qCAAsC,CDYpC,wBAAyB,CACzB,yBAEF\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n.ck.ck-dropdown .ck-dropdown__panel .ck-list {\\n\\t/* Disabled radius of top-left border to be consistent with .dropdown__button\\n\\thttps://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t@mixin ck-rounded-corners {\\n\\t\\tborder-top-left-radius: 0;\\n\\t}\\n\\n\\t/* Make sure the button belonging to the first/last child of the list goes well with the\\n\\tborder radius of the entire panel. */\\n\\t& .ck-list__item {\\n\\t\\t&:first-child .ck-button {\\n\\t\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&:last-child .ck-button {\\n\\t\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-splitbutton{font-size:inherit}.ck.ck-splitbutton .ck-splitbutton__action:focus{z-index:calc(var(--ck-z-default) + 1)}:root{--ck-color-split-button-hover-background:#ebebeb;--ck-color-split-button-hover-border:#b3b3b3}[dir=ltr] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,[dir=ltr] .ck.ck-splitbutton:hover>.ck-splitbutton__action{border-bottom-right-radius:unset;border-top-right-radius:unset}[dir=rtl] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,[dir=rtl] .ck.ck-splitbutton:hover>.ck-splitbutton__action{border-bottom-left-radius:unset;border-top-left-radius:unset}.ck.ck-splitbutton>.ck-splitbutton__arrow{min-width:unset}[dir=ltr] .ck.ck-splitbutton>.ck-splitbutton__arrow{border-bottom-left-radius:unset;border-top-left-radius:unset}[dir=rtl] .ck.ck-splitbutton>.ck-splitbutton__arrow{border-bottom-right-radius:unset;border-top-right-radius:unset}.ck.ck-splitbutton>.ck-splitbutton__arrow svg{width:var(--ck-dropdown-arrow-size)}.ck.ck-splitbutton>.ck-splitbutton__arrow:not(:focus){border-bottom-width:0;border-top-width:0}.ck.ck-splitbutton.ck-splitbutton_open>.ck-button:not(.ck-on):not(.ck-disabled):not(:hover),.ck.ck-splitbutton:hover>.ck-button:not(.ck-on):not(.ck-disabled):not(:hover){background:var(--ck-color-split-button-hover-background)}.ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,.ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{background-color:var(--ck-color-split-button-hover-border);content:\\\"\\\";height:100%;position:absolute;width:1px}.ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:focus:after,.ck.ck-splitbutton:hover>.ck-splitbutton__arrow:focus:after{--ck-color-split-button-hover-border:var(--ck-color-focus-border)}[dir=ltr] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,[dir=ltr] .ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{left:-1px}[dir=rtl] .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow:not(.ck-disabled):after,[dir=rtl] .ck.ck-splitbutton:hover>.ck-splitbutton__arrow:not(.ck-disabled):after{right:-1px}.ck.ck-splitbutton.ck-splitbutton_open{border-radius:0}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__action,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners>.ck-splitbutton__action{border-bottom-left-radius:0}.ck-rounded-corners .ck.ck-splitbutton.ck-splitbutton_open>.ck-splitbutton__arrow,.ck.ck-splitbutton.ck-splitbutton_open.ck-rounded-corners>.ck-splitbutton__arrow{border-bottom-right-radius:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/dropdown/splitbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/splitbutton.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAKA,mBAEC,iBAKD,CAHC,iDACC,qCACD,CCJD,MACC,gDAAyD,CACzD,4CACD,CAMC,oIAKE,gCAAiC,CADjC,6BASF,CAbA,oIAWE,+BAAgC,CADhC,4BAGF,CAEA,0CAGC,eAiBD,CApBA,oDAQE,+BAAgC,CADhC,4BAaF,CApBA,oDAcE,gCAAiC,CADjC,6BAOF,CAHC,8CACC,mCACD,CAKD,sDAEC,qBAAwB,CADxB,kBAED,CAQC,0KACC,wDACD,CAIA,8JAKC,0DAA2D,CAJ3D,UAAW,CAGX,WAAY,CAFZ,iBAAkB,CAClB,SAGD,CAGA,sIACC,iEACD,CAGC,kLACC,SACD,CAIA,kLACC,UACD,CAMF,uCCzFA,eDmGA,CAVA,qHCrFC,qCD+FD,CARE,qKACC,2BACD,CAEA,mKACC,4BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-splitbutton {\\n\\t/* Enable font size inheritance, which allows fluid UI scaling. */\\n\\tfont-size: inherit;\\n\\n\\t& .ck-splitbutton__action:focus {\\n\\t\\tz-index: calc(var(--ck-z-default) + 1);\\n\\t}\\n}\\n\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-color-split-button-hover-background: hsl(0, 0%, 92%);\\n\\t--ck-color-split-button-hover-border: hsl(0, 0%, 70%);\\n}\\n\\n.ck.ck-splitbutton {\\n\\t/*\\n\\t * Note: ck-rounded and ck-dir mixins don't go together (because they both use @nest).\\n\\t */\\n\\t&:hover > .ck-splitbutton__action,\\n\\t&.ck-splitbutton_open > .ck-splitbutton__action {\\n\\t\\t@nest [dir=\\\"ltr\\\"] & {\\n\\t\\t\\t/* Don't round the action button on the right side */\\n\\t\\t\\tborder-top-right-radius: unset;\\n\\t\\t\\tborder-bottom-right-radius: unset;\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"rtl\\\"] & {\\n\\t\\t\\t/* Don't round the action button on the left side */\\n\\t\\t\\tborder-top-left-radius: unset;\\n\\t\\t\\tborder-bottom-left-radius: unset;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-splitbutton__arrow {\\n\\t\\t/* It's a text-less button and since the icon is positioned absolutely in such situation,\\n\\t\\tit must get some arbitrary min-width. */\\n\\t\\tmin-width: unset;\\n\\n\\t\\t@nest [dir=\\\"ltr\\\"] & {\\n\\t\\t\\t/* Don't round the arrow button on the left side */\\n\\t\\t\\tborder-top-left-radius: unset;\\n\\t\\t\\tborder-bottom-left-radius: unset;\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"rtl\\\"] & {\\n\\t\\t\\t/* Don't round the arrow button on the right side */\\n\\t\\t\\tborder-top-right-radius: unset;\\n\\t\\t\\tborder-bottom-right-radius: unset;\\n\\t\\t}\\n\\n\\t\\t& svg {\\n\\t\\t\\twidth: var(--ck-dropdown-arrow-size);\\n\\t\\t}\\n\\t}\\n\\n\\t/* Make sure the divider stretches 100% height of the button\\n\\thttps://github.com/ckeditor/ckeditor5/issues/10936 */\\n\\t& > .ck-splitbutton__arrow:not(:focus) {\\n\\t\\tborder-top-width: 0px;\\n\\t\\tborder-bottom-width: 0px;\\n\\t}\\n\\n\\t/* When the split button is \\\"open\\\" (the arrow is on) or being hovered, it should get some styling\\n\\tas a whole. The background of both buttons should stand out and there should be a visual\\n\\tseparation between both buttons. */\\n\\t&.ck-splitbutton_open,\\n\\t&:hover {\\n\\t\\t/* When the split button hovered as a whole, not as individual buttons. */\\n\\t\\t& > .ck-button:not(.ck-on):not(.ck-disabled):not(:hover) {\\n\\t\\t\\tbackground: var(--ck-color-split-button-hover-background);\\n\\t\\t}\\n\\n\\t\\t/* Splitbutton separator needs to be set with the ::after pseudoselector\\n\\t\\tto display properly the borders on focus */\\n\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\\n\\t\\t\\tcontent: '';\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\twidth: 1px;\\n\\t\\t\\theight: 100%;\\n\\t\\t\\tbackground-color: var(--ck-color-split-button-hover-border);\\n\\t\\t}\\n\\n\\t\\t/* Make sure the divider between the buttons looks fine when the button is focused */\\n\\t\\t& > .ck-splitbutton__arrow:focus::after {\\n\\t\\t\\t--ck-color-split-button-hover-border: var(--ck-color-focus-border);\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"ltr\\\"] & {\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\\n\\t\\t\\t\\tleft: -1px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t@nest [dir=\\\"rtl\\\"] & {\\n\\t\\t\\t& > .ck-splitbutton__arrow:not(.ck-disabled)::after {\\n\\t\\t\\t\\tright: -1px;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/* Don't round the bottom left and right corners of the buttons when \\\"open\\\"\\n\\thttps://github.com/ckeditor/ckeditor5/issues/816 */\\n\\t&.ck-splitbutton_open {\\n\\t\\t@mixin ck-rounded-corners {\\n\\t\\t\\t& > .ck-splitbutton__action {\\n\\t\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& > .ck-splitbutton__arrow {\\n\\t\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-toolbar-dropdown-max-width:60vw}.ck.ck-toolbar-dropdown>.ck-dropdown__panel{max-width:var(--ck-toolbar-dropdown-max-width);width:max-content}.ck.ck-toolbar-dropdown>.ck-dropdown__panel .ck-button:focus{z-index:calc(var(--ck-z-default) + 1)}.ck.ck-toolbar-dropdown .ck-toolbar{border:0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/dropdown/toolbardropdown.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/dropdown/toolbardropdown.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,oCACD,CAEA,4CAGC,8CAA+C,CAD/C,iBAQD,CAJE,6DACC,qCACD,CCZF,oCACC,QACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-toolbar-dropdown-max-width: 60vw;\\n}\\n\\n.ck.ck-toolbar-dropdown > .ck-dropdown__panel {\\n\\t/* https://github.com/ckeditor/ckeditor5/issues/5586 */\\n\\twidth: max-content;\\n\\tmax-width: var(--ck-toolbar-dropdown-max-width);\\n\\n\\t& .ck-button {\\n\\t\\t&:focus {\\n\\t\\t\\tz-index: calc(var(--ck-z-default) + 1);\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-toolbar-dropdown .ck-toolbar {\\n\\tborder: 0;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-editable-blur-selection:#d9d9d9}.ck.ck-editor__editable:not(.ck-editor__nested-editable){border-radius:0}.ck-rounded-corners .ck.ck-editor__editable:not(.ck-editor__nested-editable),.ck.ck-editor__editable.ck-rounded-corners:not(.ck-editor__nested-editable){border-radius:var(--ck-border-radius)}.ck.ck-editor__editable.ck-focused:not(.ck-editor__nested-editable){border:var(--ck-focus-ring);box-shadow:var(--ck-inner-shadow),0 0;outline:none}.ck.ck-editor__editable_inline{border:1px solid transparent;overflow:auto;padding:0 var(--ck-spacing-standard)}.ck.ck-editor__editable_inline[dir=ltr]{text-align:left}.ck.ck-editor__editable_inline[dir=rtl]{text-align:right}.ck.ck-editor__editable_inline>:first-child{margin-top:var(--ck-spacing-large)}.ck.ck-editor__editable_inline>:last-child{margin-bottom:var(--ck-spacing-large)}.ck.ck-editor__editable_inline.ck-blurred ::selection{background:var(--ck-color-editable-blur-selection)}.ck.ck-balloon-panel.ck-toolbar-container[class*=arrow_n]:after{border-bottom-color:var(--ck-color-base-foreground)}.ck.ck-balloon-panel.ck-toolbar-container[class*=arrow_s]:after{border-top-color:var(--ck-color-base-foreground)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/editorui/editorui.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAWA,MACC,0CACD,CAEA,yDCJC,eDWD,CAPA,yJCAE,qCDOF,CAJC,oEEPA,2BAA2B,CCF3B,qCAA8B,CDC9B,YFWA,CAGD,+BAGC,4BAA6B,CAF7B,aAAc,CACd,oCA6BD,CA1BC,wCACC,eACD,CAEA,wCACC,gBACD,CAGA,4CACC,kCACD,CAGA,2CAKC,qCACD,CAGA,sDACC,kDACD,CAKA,gEACC,mDACD,CAIA,gEACC,gDACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n@import \\\"../../../mixins/_focus.css\\\";\\n@import \\\"../../mixins/_button.css\\\";\\n\\n:root {\\n\\t--ck-color-editable-blur-selection: hsl(0, 0%, 85%);\\n}\\n\\n.ck.ck-editor__editable:not(.ck-editor__nested-editable) {\\n\\t@mixin ck-rounded-corners;\\n\\n\\t&.ck-focused {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-inner-shadow);\\n\\t}\\n}\\n\\n.ck.ck-editor__editable_inline {\\n\\toverflow: auto;\\n\\tpadding: 0 var(--ck-spacing-standard);\\n\\tborder: 1px solid transparent;\\n\\n\\t&[dir=\\\"ltr\\\"] {\\n\\t\\ttext-align: left;\\n\\t}\\n\\n\\t&[dir=\\\"rtl\\\"] {\\n\\t\\ttext-align: right;\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/116 */\\n\\t& > *:first-child {\\n\\t\\tmargin-top: var(--ck-spacing-large);\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5/issues/847 */\\n\\t& > *:last-child {\\n\\t\\t/*\\n\\t\\t * This value should match with the default margins of the block elements (like .media or .image)\\n\\t\\t * to avoid a content jumping when the fake selection container shows up (See https://github.com/ckeditor/ckeditor5/issues/9825).\\n\\t\\t */\\n\\t\\tmargin-bottom: var(--ck-spacing-large);\\n\\t}\\n\\n\\t/* https://github.com/ckeditor/ckeditor5/issues/6517 */\\n\\t&.ck-blurred ::selection {\\n\\t\\tbackground: var(--ck-color-editable-blur-selection);\\n\\t}\\n}\\n\\n/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/111 */\\n.ck.ck-balloon-panel.ck-toolbar-container[class*=\\\"arrow_n\\\"] {\\n\\t&::after {\\n\\t\\tborder-bottom-color: var(--ck-color-base-foreground);\\n\\t}\\n}\\n\\n.ck.ck-balloon-panel.ck-toolbar-container[class*=\\\"arrow_s\\\"] {\\n\\t&::after {\\n\\t\\tborder-top-color: var(--ck-color-base-foreground);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-form__header{align-items:center;display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:space-between}:root{--ck-form-header-height:38px}.ck.ck-form__header{border-bottom:1px solid var(--ck-color-base-border);height:var(--ck-form-header-height);line-height:var(--ck-form-header-height);padding:var(--ck-spacing-small) var(--ck-spacing-large)}.ck.ck-form__header .ck-form__header__label{font-weight:700}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/formheader/formheader.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/formheader/formheader.css\"],\"names\":[],\"mappings\":\"AAKA,oBAIC,kBAAmB,CAHnB,YAAa,CACb,kBAAmB,CACnB,gBAAiB,CAEjB,6BACD,CCNA,MACC,4BACD,CAEA,oBAIC,mDAAoD,CAFpD,mCAAoC,CACpC,wCAAyC,CAFzC,uDAQD,CAHC,4CACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-form__header {\\n\\tdisplay: flex;\\n\\tflex-direction: row;\\n\\tflex-wrap: nowrap;\\n\\talign-items: center;\\n\\tjustify-content: space-between;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-form-header-height: 38px;\\n}\\n\\n.ck.ck-form__header {\\n\\tpadding: var(--ck-spacing-small) var(--ck-spacing-large);\\n\\theight: var(--ck-form-header-height);\\n\\tline-height: var(--ck-form-header-height);\\n\\tborder-bottom: 1px solid var(--ck-color-base-border);\\n\\n\\t& .ck-form__header__label {\\n\\t\\tfont-weight: bold;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-icon{vertical-align:middle}:root{--ck-icon-size:calc(var(--ck-line-height-base)*var(--ck-font-size-normal))}.ck.ck-icon{font-size:.8333350694em;height:var(--ck-icon-size);width:var(--ck-icon-size);will-change:transform}.ck.ck-icon,.ck.ck-icon *{cursor:inherit}.ck.ck-icon.ck-icon_inherit-color,.ck.ck-icon.ck-icon_inherit-color *{color:inherit}.ck.ck-icon.ck-icon_inherit-color :not([fill]){fill:currentColor}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/icon/icon.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/icon/icon.css\"],\"names\":[],\"mappings\":\"AAKA,YACC,qBACD,CCFA,MACC,0EACD,CAEA,YAKC,uBAAwB,CAHxB,0BAA2B,CAD3B,yBAA0B,CAU1B,qBAoBD,CAlBC,0BALA,cAQA,CAMC,sEACC,aAMD,CAJC,+CAEC,iBACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-icon {\\n\\tvertical-align: middle;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-icon-size: calc(var(--ck-line-height-base) * var(--ck-font-size-normal));\\n}\\n\\n.ck.ck-icon {\\n\\twidth: var(--ck-icon-size);\\n\\theight: var(--ck-icon-size);\\n\\n\\t/* Multiplied by the height of the line in \\\"px\\\" should give SVG \\\"viewport\\\" dimensions */\\n\\tfont-size: .8333350694em;\\n\\n\\t/* Inherit cursor style (#5). */\\n\\tcursor: inherit;\\n\\n\\t/* This will prevent blurry icons on Firefox. See #340. */\\n\\twill-change: transform;\\n\\n\\t& * {\\n\\t\\t/* Inherit cursor style (#5). */\\n\\t\\tcursor: inherit;\\n\\t}\\n\\n\\t/* Allows dynamic coloring of an icon by inheriting its color from the parent. */\\n\\t&.ck-icon_inherit-color {\\n\\t\\tcolor: inherit;\\n\\n\\t\\t& * {\\n\\t\\t\\tcolor: inherit;\\n\\n\\t\\t\\t&:not([fill]) {\\n\\t\\t\\t\\t/* Needed by FF. */\\n\\t\\t\\t\\tfill: currentColor;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-input-width:18em;--ck-input-text-width:var(--ck-input-width)}.ck.ck-input{border-radius:0}.ck-rounded-corners .ck.ck-input,.ck.ck-input.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-input{background:var(--ck-color-input-background);border:1px solid var(--ck-color-input-border);min-height:var(--ck-ui-component-min-height);min-width:var(--ck-input-width);padding:var(--ck-spacing-extra-tiny) var(--ck-spacing-medium);transition:box-shadow .1s ease-in-out,border .1s ease-in-out}.ck.ck-input:focus{border:var(--ck-focus-ring);box-shadow:var(--ck-focus-outer-shadow),0 0;outline:none}.ck.ck-input[readonly]{background:var(--ck-color-input-disabled-background);border:1px solid var(--ck-color-input-disabled-border);color:var(--ck-color-input-disabled-text)}.ck.ck-input[readonly]:focus{box-shadow:var(--ck-focus-disabled-outer-shadow),0 0}.ck.ck-input.ck-error{animation:ck-input-shake .3s ease both;border-color:var(--ck-color-input-error-border)}.ck.ck-input.ck-error:focus{box-shadow:var(--ck-focus-error-outer-shadow),0 0}@keyframes ck-input-shake{20%{transform:translateX(-2px)}40%{transform:translateX(2px)}60%{transform:translateX(-1px)}80%{transform:translateX(1px)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/input/input.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AASA,MACC,qBAAsB,CAGtB,2CACD,CAEA,aCLC,eD2CD,CAtCA,iECDE,qCDuCF,CAtCA,aAGC,2CAA4C,CAC5C,6CAA8C,CAK9C,4CAA6C,CAH7C,+BAAgC,CADhC,6DAA8D,CAO9D,4DA0BD,CAxBC,mBEnBA,2BAA2B,CCF3B,2CAA8B,CDC9B,YFuBA,CAEA,uBAEC,oDAAqD,CADrD,sDAAuD,CAEvD,yCAMD,CAJC,6BG/BD,oDHkCC,CAGD,sBAEC,sCAAuC,CADvC,+CAMD,CAHC,4BGzCD,iDH2CC,CAIF,0BACC,IACC,0BACD,CAEA,IACC,yBACD,CAEA,IACC,0BACD,CAEA,IACC,yBACD,CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_focus.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-input-width: 18em;\\n\\n\\t/* Backward compatibility. */\\n\\t--ck-input-text-width: var(--ck-input-width);\\n}\\n\\n.ck.ck-input {\\n\\t@mixin ck-rounded-corners;\\n\\n\\tbackground: var(--ck-color-input-background);\\n\\tborder: 1px solid var(--ck-color-input-border);\\n\\tpadding: var(--ck-spacing-extra-tiny) var(--ck-spacing-medium);\\n\\tmin-width: var(--ck-input-width);\\n\\n\\t/* This is important to stay of the same height as surrounding buttons */\\n\\tmin-height: var(--ck-ui-component-min-height);\\n\\n\\t/* Apply some smooth transition to the box-shadow and border. */\\n\\ttransition: box-shadow .1s ease-in-out, border .1s ease-in-out;\\n\\n\\t&:focus {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-focus-outer-shadow);\\n\\t}\\n\\n\\t&[readonly] {\\n\\t\\tborder: 1px solid var(--ck-color-input-disabled-border);\\n\\t\\tbackground: var(--ck-color-input-disabled-background);\\n\\t\\tcolor: var(--ck-color-input-disabled-text);\\n\\n\\t\\t&:focus {\\n\\t\\t\\t/* The read-only input should have a slightly less visible shadow when focused. */\\n\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-disabled-outer-shadow);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-error {\\n\\t\\tborder-color: var(--ck-color-input-error-border);\\n\\t\\tanimation: ck-input-shake .3s ease both;\\n\\n\\t\\t&:focus {\\n\\t\\t\\t@mixin ck-box-shadow var(--ck-focus-error-outer-shadow);\\n\\t\\t}\\n\\t}\\n}\\n\\n@keyframes ck-input-shake {\\n\\t20% {\\n\\t\\ttransform: translateX(-2px);\\n\\t}\\n\\n\\t40% {\\n\\t\\ttransform: translateX(2px);\\n\\t}\\n\\n\\t60% {\\n\\t\\ttransform: translateX(-1px);\\n\\t}\\n\\n\\t80% {\\n\\t\\ttransform: translateX(1px);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-label{display:block}.ck.ck-voice-label{display:none}.ck.ck-label{font-weight:700}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/label/label.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/label/label.css\"],\"names\":[],\"mappings\":\"AAKA,aACC,aACD,CAEA,mBACC,YACD,CCNA,aACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-label {\\n\\tdisplay: block;\\n}\\n\\n.ck.ck-voice-label {\\n\\tdisplay: none;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-label {\\n\\tfont-weight: bold;\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{display:flex;position:relative}.ck.ck-labeled-field-view .ck.ck-label{display:block;position:absolute}:root{--ck-labeled-field-view-transition:.1s cubic-bezier(0,0,0.24,0.95);--ck-labeled-field-empty-unfocused-max-width:100% - 2 * var(--ck-spacing-medium);--ck-labeled-field-label-default-position-x:var(--ck-spacing-medium);--ck-labeled-field-label-default-position-y:calc(var(--ck-font-size-base)*0.6);--ck-color-labeled-field-label-background:var(--ck-color-base-background)}.ck.ck-labeled-field-view{border-radius:0}.ck-rounded-corners .ck.ck-labeled-field-view,.ck.ck-labeled-field-view.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper{width:100%}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{top:0}[dir=ltr] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{left:0}[dir=rtl] .ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{right:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:var(--ck-color-labeled-field-label-background);font-weight:400;line-height:normal;max-width:100%;overflow:hidden;padding:0 calc(var(--ck-font-size-tiny)*.5);pointer-events:none;text-overflow:ellipsis;transform:translate(var(--ck-spacing-medium),-6px) scale(.75);transform-origin:0 0;transition:transform var(--ck-labeled-field-view-transition),padding var(--ck-labeled-field-view-transition),background var(--ck-labeled-field-view-transition)}.ck.ck-labeled-field-view.ck-error .ck-input:not([readonly])+.ck.ck-label,.ck.ck-labeled-field-view.ck-error>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view .ck-labeled-field-view__status{font-size:var(--ck-font-size-small);margin-top:var(--ck-spacing-small);white-space:normal}.ck.ck-labeled-field-view .ck-labeled-field-view__status.ck-labeled-field-view__status_error{color:var(--ck-color-base-error)}.ck.ck-labeled-field-view.ck-disabled>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{color:var(--ck-color-input-disabled-text)}[dir=ltr] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=ltr] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(var(--ck-labeled-field-label-default-position-x),var(--ck-labeled-field-label-default-position-y)) scale(1)}[dir=rtl] .ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,[dir=rtl] .ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{transform:translate(calc(var(--ck-labeled-field-label-default-position-x)*-1),var(--ck-labeled-field-label-default-position-y)) scale(1)}.ck.ck-labeled-field-view.ck-disabled.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label,.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck.ck-label{background:transparent;max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width));padding:0}.ck.ck-labeled-field-view>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck.ck-button{background:transparent}.ck.ck-labeled-field-view.ck-labeled-field-view_empty>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown>.ck-button>.ck-button__label{opacity:0}.ck.ck-labeled-field-view.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder)>.ck.ck-labeled-field-view__input-wrapper>.ck-dropdown+.ck-label{max-width:calc(var(--ck-labeled-field-empty-unfocused-max-width) - var(--ck-dropdown-arrow-size) - var(--ck-spacing-standard))}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/labeledfield/labeledfieldview.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/labeledfield/labeledfieldview.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAMC,mEACC,YAAa,CACb,iBACD,CAEA,uCACC,aAAc,CACd,iBACD,CCND,MACC,kEAAsE,CACtE,gFAAiF,CACjF,oEAAqE,CACrE,8EAAiF,CACjF,yEACD,CAEA,0BCLC,eD8GD,CAzGA,2FCDE,qCD0GF,CAtGC,mEACC,UAmCD,CAjCC,gFACC,KA+BD,CAhCA,0FAIE,MA4BF,CAhCA,0FAQE,OAwBF,CAhCA,gFAiBC,yDAA0D,CAG1D,eAAmB,CADnB,kBAAoB,CAOpB,cAAe,CAFf,eAAgB,CANhB,2CAA8C,CAP9C,mBAAoB,CAYpB,sBAAuB,CARvB,6DAA+D,CAH/D,oBAAqB,CAgBrB,+JAID,CAQA,mKACC,gCACD,CAGD,yDACC,mCAAoC,CACpC,kCAAmC,CAInC,kBAKD,CAHC,6FACC,gCACD,CAID,4OAEC,yCACD,CAIA,oUAGE,+HAYF,CAfA,oUAOE,wIAQF,CAfA,gTAaC,sBAAuB,CAFvB,iEAAkE,CAGlE,SACD,CAKA,8FACC,sBACD,CAGA,yIACC,SACD,CAGA,kMACC,8HACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-labeled-field-view {\\n\\t& > .ck.ck-labeled-field-view__input-wrapper {\\n\\t\\tdisplay: flex;\\n\\t\\tposition: relative;\\n\\t}\\n\\n\\t& .ck.ck-label {\\n\\t\\tdisplay: block;\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n:root {\\n\\t--ck-labeled-field-view-transition: .1s cubic-bezier(0, 0, 0.24, 0.95);\\n\\t--ck-labeled-field-empty-unfocused-max-width: 100% - 2 * var(--ck-spacing-medium);\\n\\t--ck-labeled-field-label-default-position-x: var(--ck-spacing-medium);\\n\\t--ck-labeled-field-label-default-position-y: calc(0.6 * var(--ck-font-size-base));\\n\\t--ck-color-labeled-field-label-background: var(--ck-color-base-background);\\n}\\n\\n.ck.ck-labeled-field-view {\\n\\t@mixin ck-rounded-corners;\\n\\n\\t& > .ck.ck-labeled-field-view__input-wrapper {\\n\\t\\twidth: 100%;\\n\\n\\t\\t& > .ck.ck-label {\\n\\t\\t\\ttop: 0px;\\n\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tleft: 0px;\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tright: 0px;\\n\\t\\t\\t}\\n\\n\\t\\t\\tpointer-events: none;\\n\\t\\t\\ttransform-origin: 0 0;\\n\\n\\t\\t\\t/* By default, display the label scaled down above the field. */\\n\\t\\t\\ttransform: translate(var(--ck-spacing-medium), -6px) scale(.75);\\n\\n\\t\\t\\tbackground: var(--ck-color-labeled-field-label-background);\\n\\t\\t\\tpadding: 0 calc(.5 * var(--ck-font-size-tiny));\\n\\t\\t\\tline-height: initial;\\n\\t\\t\\tfont-weight: normal;\\n\\n\\t\\t\\t/* Prevent overflow when the label is longer than the input */\\n\\t\\t\\ttext-overflow: ellipsis;\\n\\t\\t\\toverflow: hidden;\\n\\n\\t\\t\\tmax-width: 100%;\\n\\n\\t\\t\\ttransition:\\n\\t\\t\\t\\ttransform var(--ck-labeled-field-view-transition),\\n\\t\\t\\t\\tpadding var(--ck-labeled-field-view-transition),\\n\\t\\t\\t\\tbackground var(--ck-labeled-field-view-transition);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-error {\\n\\t\\t& > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\\n\\t\\t\\tcolor: var(--ck-color-base-error);\\n\\t\\t}\\n\\n\\t\\t& .ck-input:not([readonly]) + .ck.ck-label {\\n\\t\\t\\tcolor: var(--ck-color-base-error);\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-labeled-field-view__status {\\n\\t\\tfont-size: var(--ck-font-size-small);\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\n\\t\\t/* Let the info wrap to the next line to avoid stretching the layout horizontally.\\n\\t\\tThe status could be very long. */\\n\\t\\twhite-space: normal;\\n\\n\\t\\t&.ck-labeled-field-view__status_error {\\n\\t\\t\\tcolor: var(--ck-color-base-error);\\n\\t\\t}\\n\\t}\\n\\n\\t/* Disabled fields and fields that have no focus should fade out. */\\n\\t&.ck-disabled > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\\n\\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\\n\\t\\tcolor: var(--ck-color-input-disabled-text);\\n\\t}\\n\\n\\t/* Fields that are disabled or not focused and without a placeholder should have full-sized labels. */\\n\\t/* stylelint-disable-next-line no-descending-specificity */\\n\\t&.ck-disabled.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,\\n\\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {\\n\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\ttransform: translate(var(--ck-labeled-field-label-default-position-x), var(--ck-labeled-field-label-default-position-y)) scale(1);\\n\\t\\t}\\n\\n\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\ttransform: translate(calc(-1 * var(--ck-labeled-field-label-default-position-x)), var(--ck-labeled-field-label-default-position-y)) scale(1);\\n\\t\\t}\\n\\n\\t\\t/* Compensate for the default translate position. */\\n\\t\\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width));\\n\\n\\t\\tbackground: transparent;\\n\\t\\tpadding: 0;\\n\\t}\\n\\n\\t/*------ DropdownView integration ----------------------------------------------------------------------------------- */\\n\\n\\t/* Make sure dropdown' background color in any of dropdown's state does not collide with labeled field. */\\n\\t& > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck.ck-button {\\n\\t\\tbackground: transparent;\\n\\t}\\n\\n\\t/* When the dropdown is \\\"empty\\\", the labeled field label replaces its label. */\\n\\t&.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck-button > .ck-button__label {\\n\\t\\topacity: 0;\\n\\t}\\n\\n\\t/* Make sure the label of the empty, unfocused input does not cover the dropdown arrow. */\\n\\t&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown + .ck-label {\\n\\t\\tmax-width: calc(var(--ck-labeled-field-empty-unfocused-max-width) - var(--ck-dropdown-arrow-size) - var(--ck-spacing-standard));\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-list{display:flex;flex-direction:column;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-list .ck-list__item,.ck.ck-list .ck-list__separator{display:block}.ck.ck-list .ck-list__item>:focus{position:relative;z-index:var(--ck-z-default)}.ck.ck-list{border-radius:0}.ck-rounded-corners .ck.ck-list,.ck.ck-list.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-list{background:var(--ck-color-list-background);list-style-type:none}.ck.ck-list__item{cursor:default;min-width:12em}.ck.ck-list__item .ck-button{border-radius:0;min-height:unset;padding:calc(var(--ck-line-height-base)*.2*var(--ck-font-size-base)) calc(var(--ck-line-height-base)*.4*var(--ck-font-size-base));text-align:left;width:100%}.ck.ck-list__item .ck-button .ck-button__label{line-height:calc(var(--ck-line-height-base)*1.2*var(--ck-font-size-base))}.ck.ck-list__item .ck-button:active{box-shadow:none}.ck.ck-list__item .ck-button.ck-on{background:var(--ck-color-list-button-on-background);color:var(--ck-color-list-button-on-text)}.ck.ck-list__item .ck-button.ck-on:active{box-shadow:none}.ck.ck-list__item .ck-button.ck-on:hover:not(.ck-disabled){background:var(--ck-color-list-button-on-background-focus)}.ck.ck-list__item .ck-button.ck-on:focus:not(.ck-switchbutton):not(.ck-disabled){border-color:var(--ck-color-base-background)}.ck.ck-list__item .ck-button:hover:not(.ck-disabled){background:var(--ck-color-list-button-hover-background)}.ck.ck-list__item .ck-switchbutton.ck-on{background:var(--ck-color-list-background);color:inherit}.ck.ck-list__item .ck-switchbutton.ck-on:hover:not(.ck-disabled){background:var(--ck-color-list-button-hover-background);color:inherit}.ck.ck-list__separator{background:var(--ck-color-base-border);height:1px;width:100%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/list/list.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_unselectable.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/list/list.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAOA,YAGC,YAAa,CACb,qBAAsB,CCFtB,qBAAsB,CACtB,wBAAyB,CACzB,oBAAqB,CACrB,gBDaD,CAZC,2DAEC,aACD,CAKA,kCACC,iBAAkB,CAClB,2BACD,CEfD,YCEC,eDGD,CALA,+DCME,qCDDF,CALA,YAIC,0CAA2C,CAD3C,oBAED,CAEA,kBACC,cAAe,CACf,cA2DD,CAzDC,6BAIC,eAAgB,CAHhB,gBAAiB,CAQjB,iIAEiE,CARjE,eAAgB,CADhB,UAwCD,CA7BC,+CAEC,yEACD,CAEA,oCACC,eACD,CAEA,mCACC,oDAAqD,CACrD,yCAaD,CAXC,0CACC,eACD,CAEA,2DACC,0DACD,CAEA,iFACC,4CACD,CAGD,qDACC,uDACD,CAMA,yCACC,0CAA2C,CAC3C,aAMD,CAJC,iEACC,uDAAwD,CACxD,aACD,CAKH,uBAGC,sCAAuC,CAFvC,UAAW,CACX,UAED\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../mixins/_unselectable.css\\\";\\n\\n.ck.ck-list {\\n\\t@mixin ck-unselectable;\\n\\n\\tdisplay: flex;\\n\\tflex-direction: column;\\n\\n\\t& .ck-list__item,\\n\\t& .ck-list__separator {\\n\\t\\tdisplay: block;\\n\\t}\\n\\n\\t/* Make sure that whatever child of the list item gets focus, it remains on the\\n\\ttop. Thanks to that, styles like box-shadow, outline, etc. are not masked by\\n\\tadjacent list items. */\\n\\t& .ck-list__item > *:focus {\\n\\t\\tposition: relative;\\n\\t\\tz-index: var(--ck-z-default);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Makes element unselectable.\\n */\\n@define-mixin ck-unselectable {\\n\\t-moz-user-select: none;\\n\\t-webkit-user-select: none;\\n\\t-ms-user-select: none;\\n\\tuser-select: none\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_disabled.css\\\";\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n.ck.ck-list {\\n\\t@mixin ck-rounded-corners;\\n\\n\\tlist-style-type: none;\\n\\tbackground: var(--ck-color-list-background);\\n}\\n\\n.ck.ck-list__item {\\n\\tcursor: default;\\n\\tmin-width: 12em;\\n\\n\\t& .ck-button {\\n\\t\\tmin-height: unset;\\n\\t\\twidth: 100%;\\n\\t\\ttext-align: left;\\n\\t\\tborder-radius: 0;\\n\\n\\t\\t/* List items should have the same height. Use absolute units to make sure it is so\\n\\t\\t   because e.g. different heading styles may have different height\\n\\t\\t   https://github.com/ckeditor/ckeditor5-heading/issues/63 */\\n\\t\\tpadding:\\n\\t\\t\\tcalc(.2 * var(--ck-line-height-base) * var(--ck-font-size-base))\\n\\t\\t\\tcalc(.4 * var(--ck-line-height-base) * var(--ck-font-size-base));\\n\\n\\t\\t& .ck-button__label {\\n\\t\\t\\t/* https://github.com/ckeditor/ckeditor5-heading/issues/63 */\\n\\t\\t\\tline-height: calc(1.2 * var(--ck-line-height-base) * var(--ck-font-size-base));\\n\\t\\t}\\n\\n\\t\\t&:active {\\n\\t\\t\\tbox-shadow: none;\\n\\t\\t}\\n\\n\\t\\t&.ck-on {\\n\\t\\t\\tbackground: var(--ck-color-list-button-on-background);\\n\\t\\t\\tcolor: var(--ck-color-list-button-on-text);\\n\\n\\t\\t\\t&:active {\\n\\t\\t\\t\\tbox-shadow: none;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&:hover:not(.ck-disabled) {\\n\\t\\t\\t\\tbackground: var(--ck-color-list-button-on-background-focus);\\n\\t\\t\\t}\\n\\n\\t\\t\\t&:focus:not(.ck-switchbutton):not(.ck-disabled) {\\n\\t\\t\\t\\tborder-color: var(--ck-color-base-background);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&:hover:not(.ck-disabled) {\\n\\t\\t\\tbackground: var(--ck-color-list-button-hover-background);\\n\\t\\t}\\n\\t}\\n\\n\\t/* It's unnecessary to change the background/text of a switch toggle; it has different ways\\n\\tof conveying its state (like the switcher) */\\n\\t& .ck-switchbutton {\\n\\t\\t&.ck-on {\\n\\t\\t\\tbackground: var(--ck-color-list-background);\\n\\t\\t\\tcolor: inherit;\\n\\n\\t\\t\\t&:hover:not(.ck-disabled) {\\n\\t\\t\\t\\tbackground: var(--ck-color-list-button-hover-background);\\n\\t\\t\\t\\tcolor: inherit;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-list__separator {\\n\\theight: 1px;\\n\\twidth: 100%;\\n\\tbackground: var(--ck-color-base-border);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-balloon-panel-arrow-z-index:calc(var(--ck-z-default) - 3)}.ck.ck-balloon-panel{display:none;position:absolute;z-index:var(--ck-z-modal)}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after,.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{content:\\\"\\\";position:absolute}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel[class*=arrow_n]:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel[class*=arrow_n]:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel[class*=arrow_s]:before{z-index:var(--ck-balloon-panel-arrow-z-index)}.ck.ck-balloon-panel[class*=arrow_s]:after{z-index:calc(var(--ck-balloon-panel-arrow-z-index) + 1)}.ck.ck-balloon-panel.ck-balloon-panel_visible{display:block}:root{--ck-balloon-border-width:1px;--ck-balloon-arrow-offset:2px;--ck-balloon-arrow-height:10px;--ck-balloon-arrow-half-width:8px;--ck-balloon-arrow-drop-shadow:0 2px 2px var(--ck-color-shadow-drop)}.ck.ck-balloon-panel{border-radius:0}.ck-rounded-corners .ck.ck-balloon-panel,.ck.ck-balloon-panel.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-balloon-panel{background:var(--ck-color-panel-background);border:var(--ck-balloon-border-width) solid var(--ck-color-panel-border);box-shadow:var(--ck-drop-shadow),0 0;min-height:15px}.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:after,.ck.ck-balloon-panel.ck-balloon-panel_with-arrow:before{border-style:solid;height:0;width:0}.ck.ck-balloon-panel[class*=arrow_n]:after,.ck.ck-balloon-panel[class*=arrow_n]:before{border-width:0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width)}.ck.ck-balloon-panel[class*=arrow_n]:before{border-color:transparent transparent var(--ck-color-panel-border) transparent;margin-top:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_n]:after{border-color:transparent transparent var(--ck-color-panel-background) transparent;margin-top:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel[class*=arrow_s]:after,.ck.ck-balloon-panel[class*=arrow_s]:before{border-width:var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width)}.ck.ck-balloon-panel[class*=arrow_s]:before{border-color:var(--ck-color-panel-border) transparent transparent;filter:drop-shadow(var(--ck-balloon-arrow-drop-shadow));margin-bottom:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_s]:after{border-color:var(--ck-color-panel-background) transparent transparent transparent;margin-bottom:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel[class*=arrow_e]:after,.ck.ck-balloon-panel[class*=arrow_e]:before{border-width:var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height)}.ck.ck-balloon-panel[class*=arrow_e]:before{border-color:transparent transparent transparent var(--ck-color-panel-border);margin-right:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_e]:after{border-color:transparent transparent transparent var(--ck-color-panel-background);margin-right:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel[class*=arrow_w]:after,.ck.ck-balloon-panel[class*=arrow_w]:before{border-width:var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0}.ck.ck-balloon-panel[class*=arrow_w]:before{border-color:transparent var(--ck-color-panel-border) transparent transparent;margin-left:calc(var(--ck-balloon-border-width)*-1)}.ck.ck-balloon-panel[class*=arrow_w]:after{border-color:transparent var(--ck-color-panel-background) transparent transparent;margin-left:calc(var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width))}.ck.ck-balloon-panel.ck-balloon-panel_arrow_n:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_n:before{left:50%;margin-left:calc(var(--ck-balloon-arrow-half-width)*-1);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_nw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_nw:before{left:calc(var(--ck-balloon-arrow-half-width)*2);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_ne:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_ne:before{right:calc(var(--ck-balloon-arrow-half-width)*2);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_s:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_s:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);left:50%;margin-left:calc(var(--ck-balloon-arrow-half-width)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_sw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_sw:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);left:calc(var(--ck-balloon-arrow-half-width)*2)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_se:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_se:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);right:calc(var(--ck-balloon-arrow-half-width)*2)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_sme:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_sme:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);margin-right:calc(var(--ck-balloon-arrow-half-width)*2);right:25%}.ck.ck-balloon-panel.ck-balloon-panel_arrow_smw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_smw:before{bottom:calc(var(--ck-balloon-arrow-height)*-1);left:25%;margin-left:calc(var(--ck-balloon-arrow-half-width)*2)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_nme:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_nme:before{margin-right:calc(var(--ck-balloon-arrow-half-width)*2);right:25%;top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_nmw:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_nmw:before{left:25%;margin-left:calc(var(--ck-balloon-arrow-half-width)*2);top:calc(var(--ck-balloon-arrow-height)*-1)}.ck.ck-balloon-panel.ck-balloon-panel_arrow_e:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_e:before{margin-top:calc(var(--ck-balloon-arrow-half-width)*-1);right:calc(var(--ck-balloon-arrow-height)*-1);top:50%}.ck.ck-balloon-panel.ck-balloon-panel_arrow_w:after,.ck.ck-balloon-panel.ck-balloon-panel_arrow_w:before{left:calc(var(--ck-balloon-arrow-height)*-1);margin-top:calc(var(--ck-balloon-arrow-half-width)*-1);top:50%}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/balloonpanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/balloonpanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAKA,MAEC,8DACD,CAEA,qBACC,YAAa,CACb,iBAAkB,CAElB,yBAyCD,CAtCE,+GAEC,UAAW,CACX,iBACD,CAEA,wDACC,6CACD,CAEA,uDACC,uDACD,CAIA,4CACC,6CACD,CAEA,2CACC,uDACD,CAIA,4CACC,6CACD,CAEA,2CACC,uDACD,CAGD,8CACC,aACD,CC9CD,MACC,6BAA8B,CAC9B,6BAA8B,CAC9B,8BAA+B,CAC/B,iCAAkC,CAClC,oEACD,CAEA,qBCLC,eDmMD,CA9LA,iFCDE,qCD+LF,CA9LA,qBAMC,2CAA4C,CAC5C,wEAAyE,CEdzE,oCAA8B,CFW9B,eA0LD,CApLE,+GAIC,kBAAmB,CADnB,QAAS,CADT,OAGD,CAIA,uFAEC,mHACD,CAEA,4CACC,6EAA8E,CAC9E,kDACD,CAEA,2CACC,iFAAkF,CAClF,gFACD,CAIA,uFAEC,mHACD,CAEA,4CACC,iEAAkE,CAClE,uDAAwD,CACxD,qDACD,CAEA,2CACC,iFAAkF,CAClF,mFACD,CAIA,uFAEC,mHACD,CAEA,4CACC,6EAA8E,CAC9E,oDACD,CAEA,2CACC,iFAAkF,CAClF,kFACD,CAIA,uFAEC,mHACD,CAEA,4CACC,6EAA8E,CAC9E,mDACD,CAEA,2CACC,iFAAkF,CAClF,iFACD,CAIA,yGAEC,QAAS,CACT,uDAA0D,CAC1D,2CACD,CAIA,2GAEC,+CAAkD,CAClD,2CACD,CAIA,2GAEC,gDAAmD,CACnD,2CACD,CAIA,yGAIC,8CAAiD,CAFjD,QAAS,CACT,uDAED,CAIA,2GAGC,8CAAiD,CADjD,+CAED,CAIA,2GAGC,8CAAiD,CADjD,gDAED,CAIA,6GAIC,8CAAiD,CADjD,uDAA0D,CAD1D,SAGD,CAIA,6GAIC,8CAAiD,CAFjD,QAAS,CACT,sDAED,CAIA,6GAGC,uDAA0D,CAD1D,SAAU,CAEV,2CACD,CAIA,6GAEC,QAAS,CACT,sDAAyD,CACzD,2CACD,CAIA,yGAGC,sDAAyD,CADzD,6CAAgD,CAEhD,OACD,CAIA,yGAEC,4CAA+C,CAC/C,sDAAyD,CACzD,OACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/* Make sure the balloon arrow does not float over its children. */\\n\\t--ck-balloon-panel-arrow-z-index: calc(var(--ck-z-default) - 3);\\n}\\n\\n.ck.ck-balloon-panel {\\n\\tdisplay: none;\\n\\tposition: absolute;\\n\\n\\tz-index: var(--ck-z-modal);\\n\\n\\t&.ck-balloon-panel_with-arrow {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\tposition: absolute;\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tz-index: var(--ck-balloon-panel-arrow-z-index);\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_n\\\"] {\\n\\t\\t&::before {\\n\\t\\t\\tz-index: var(--ck-balloon-panel-arrow-z-index);\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_s\\\"] {\\n\\t\\t&::before {\\n\\t\\t\\tz-index: var(--ck-balloon-panel-arrow-z-index);\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tz-index: calc(var(--ck-balloon-panel-arrow-z-index) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_visible {\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-balloon-border-width: 1px;\\n\\t--ck-balloon-arrow-offset: 2px;\\n\\t--ck-balloon-arrow-height: 10px;\\n\\t--ck-balloon-arrow-half-width: 8px;\\n\\t--ck-balloon-arrow-drop-shadow: 0 2px 2px var(--ck-color-shadow-drop);\\n}\\n\\n.ck.ck-balloon-panel {\\n\\t@mixin ck-rounded-corners;\\n\\t@mixin ck-drop-shadow;\\n\\n\\tmin-height: 15px;\\n\\n\\tbackground: var(--ck-color-panel-background);\\n\\tborder: var(--ck-balloon-border-width) solid var(--ck-color-panel-border);\\n\\n\\t&.ck-balloon-panel_with-arrow {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\twidth: 0;\\n\\t\\t\\theight: 0;\\n\\t\\t\\tborder-style: solid;\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_n\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width);\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: transparent transparent var(--ck-color-panel-border) transparent;\\n\\t\\t\\tmargin-top: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: transparent transparent var(--ck-color-panel-background) transparent;\\n\\t\\t\\tmargin-top: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_s\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width);\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: var(--ck-color-panel-border) transparent transparent;\\n\\t\\t\\tfilter: drop-shadow(var(--ck-balloon-arrow-drop-shadow));\\n\\t\\t\\tmargin-bottom: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: var(--ck-color-panel-background) transparent transparent transparent;\\n\\t\\t\\tmargin-bottom: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_e\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: var(--ck-balloon-arrow-half-width) 0 var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height);\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: transparent transparent transparent var(--ck-color-panel-border);\\n\\t\\t\\tmargin-right: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: transparent transparent transparent var(--ck-color-panel-background);\\n\\t\\t\\tmargin-right: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&[class*=\\\"arrow_w\\\"] {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tborder-width: var(--ck-balloon-arrow-half-width) var(--ck-balloon-arrow-height) var(--ck-balloon-arrow-half-width) 0;\\n\\t\\t}\\n\\n\\t\\t&::before {\\n\\t\\t\\tborder-color: transparent var(--ck-color-panel-border) transparent transparent;\\n\\t\\t\\tmargin-left: calc( -1 * var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\n\\t\\t&::after {\\n\\t\\t\\tborder-color: transparent var(--ck-color-panel-background) transparent transparent;\\n\\t\\t\\tmargin-left: calc( var(--ck-balloon-arrow-offset) - var(--ck-balloon-border-width) );\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_n {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_nw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_ne {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_s {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tmargin-left: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_sw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_se {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_sme {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: 25%;\\n\\t\\t\\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_smw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 25%;\\n\\t\\t\\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\tbottom: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_nme {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: 25%;\\n\\t\\t\\tmargin-right: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_nmw {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: 25%;\\n\\t\\t\\tmargin-left: calc(2 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_e {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tright: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t\\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: 50%;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-balloon-panel_arrow_w {\\n\\t\\t&::before,\\n\\t\\t&::after {\\n\\t\\t\\tleft: calc(-1 * var(--ck-balloon-arrow-height));\\n\\t\\t\\tmargin-top: calc(-1 * var(--ck-balloon-arrow-half-width));\\n\\t\\t\\ttop: 50%;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-balloon-rotator__navigation{align-items:center;display:flex;justify-content:center}.ck .ck-balloon-rotator__content .ck-toolbar{justify-content:center}.ck .ck-balloon-rotator__navigation{background:var(--ck-color-toolbar-background);border-bottom:1px solid var(--ck-color-toolbar-border);padding:0 var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation>*{margin-bottom:var(--ck-spacing-small);margin-right:var(--ck-spacing-small);margin-top:var(--ck-spacing-small)}.ck .ck-balloon-rotator__navigation .ck-balloon-rotator__counter{margin-left:var(--ck-spacing-small);margin-right:var(--ck-spacing-standard)}.ck .ck-balloon-rotator__content .ck.ck-annotation-wrapper{box-shadow:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/balloonrotator.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/balloonrotator.css\"],\"names\":[],\"mappings\":\"AAKA,oCAEC,kBAAmB,CADnB,YAAa,CAEb,sBACD,CAKA,6CACC,sBACD,CCXA,oCACC,6CAA8C,CAC9C,sDAAuD,CACvD,iCAgBD,CAbC,sCAGC,qCAAsC,CAFtC,oCAAqC,CACrC,kCAED,CAGA,iEAIC,mCAAoC,CAHpC,uCAID,CAMA,2DACC,eACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-balloon-rotator__navigation {\\n\\tdisplay: flex;\\n\\talign-items: center;\\n\\tjustify-content: center;\\n}\\n\\n/* Buttons inside a toolbar should be centered when rotator bar is wider.\\n * See: https://github.com/ckeditor/ckeditor5-ui/issues/495\\n */\\n.ck .ck-balloon-rotator__content .ck-toolbar {\\n\\tjustify-content: center;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-balloon-rotator__navigation {\\n\\tbackground: var(--ck-color-toolbar-background);\\n\\tborder-bottom: 1px solid var(--ck-color-toolbar-border);\\n\\tpadding: 0 var(--ck-spacing-small);\\n\\n\\t/* Let's keep similar appearance to `ck-toolbar`. */\\n\\t& > * {\\n\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\t\\tmargin-bottom: var(--ck-spacing-small);\\n\\t}\\n\\n\\t/* Gives counter more breath than buttons. */\\n\\t& .ck-balloon-rotator__counter {\\n\\t\\tmargin-right: var(--ck-spacing-standard);\\n\\n\\t\\t/* We need to use smaller margin because of previous button's right margin. */\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n}\\n\\n.ck .ck-balloon-rotator__content {\\n\\n\\t/* Disable default annotation shadow inside rotator with fake panels. */\\n\\t& .ck.ck-annotation-wrapper {\\n\\t\\tbox-shadow: none;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-fake-panel{position:absolute;z-index:calc(var(--ck-z-modal) - 1)}.ck .ck-fake-panel div{position:absolute}.ck .ck-fake-panel div:first-child{z-index:2}.ck .ck-fake-panel div:nth-child(2){z-index:1}:root{--ck-balloon-fake-panel-offset-horizontal:6px;--ck-balloon-fake-panel-offset-vertical:6px}.ck .ck-fake-panel div{background:var(--ck-color-panel-background);border:1px solid var(--ck-color-panel-border);border-radius:var(--ck-border-radius);box-shadow:var(--ck-drop-shadow),0 0;height:100%;min-height:15px;width:100%}.ck .ck-fake-panel div:first-child{margin-left:var(--ck-balloon-fake-panel-offset-horizontal);margin-top:var(--ck-balloon-fake-panel-offset-vertical)}.ck .ck-fake-panel div:nth-child(2){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*2);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*2)}.ck .ck-fake-panel div:nth-child(3){margin-left:calc(var(--ck-balloon-fake-panel-offset-horizontal)*3);margin-top:calc(var(--ck-balloon-fake-panel-offset-vertical)*3)}.ck .ck-balloon-panel_arrow_s+.ck-fake-panel,.ck .ck-balloon-panel_arrow_se+.ck-fake-panel,.ck .ck-balloon-panel_arrow_sw+.ck-fake-panel{--ck-balloon-fake-panel-offset-vertical:-6px}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/fakepanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/fakepanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAKA,mBACC,iBAAkB,CAGlB,mCACD,CAEA,uBACC,iBACD,CAEA,mCACC,SACD,CAEA,oCACC,SACD,CCfA,MACC,6CAA8C,CAC9C,2CACD,CAGA,uBAKC,2CAA4C,CAC5C,6CAA8C,CAC9C,qCAAsC,CCXtC,oCAA8B,CDc9B,WAAY,CAPZ,eAAgB,CAMhB,UAED,CAEA,mCACC,0DAA2D,CAC3D,uDACD,CAEA,oCACC,kEAAqE,CACrE,+DACD,CACA,oCACC,kEAAqE,CACrE,+DACD,CAGA,yIAGC,4CACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-fake-panel {\\n\\tposition: absolute;\\n\\n\\t/* Fake panels should be placed under main balloon content. */\\n\\tz-index: calc(var(--ck-z-modal) - 1);\\n}\\n\\n.ck .ck-fake-panel div {\\n\\tposition: absolute;\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 1 ) {\\n\\tz-index: 2;\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 2 ) {\\n\\tz-index: 1;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-balloon-fake-panel-offset-horizontal: 6px;\\n\\t--ck-balloon-fake-panel-offset-vertical: 6px;\\n}\\n\\n/* Let's use `.ck-balloon-panel` appearance. See: balloonpanel.css. */\\n.ck .ck-fake-panel div {\\n\\t@mixin ck-drop-shadow;\\n\\n\\tmin-height: 15px;\\n\\n\\tbackground: var(--ck-color-panel-background);\\n\\tborder: 1px solid var(--ck-color-panel-border);\\n\\tborder-radius: var(--ck-border-radius);\\n\\n\\twidth: 100%;\\n\\theight: 100%;\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 1 ) {\\n\\tmargin-left: var(--ck-balloon-fake-panel-offset-horizontal);\\n\\tmargin-top: var(--ck-balloon-fake-panel-offset-vertical);\\n}\\n\\n.ck .ck-fake-panel div:nth-child( 2 ) {\\n\\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 2);\\n\\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 2);\\n}\\n.ck .ck-fake-panel div:nth-child( 3 ) {\\n\\tmargin-left: calc(var(--ck-balloon-fake-panel-offset-horizontal) * 3);\\n\\tmargin-top: calc(var(--ck-balloon-fake-panel-offset-vertical) * 3);\\n}\\n\\n/* If balloon is positioned above element, we need to move fake panel to the top. */\\n.ck .ck-balloon-panel_arrow_s + .ck-fake-panel,\\n.ck .ck-balloon-panel_arrow_se + .ck-fake-panel,\\n.ck .ck-balloon-panel_arrow_sw + .ck-fake-panel {\\n\\t--ck-balloon-fake-panel-offset-vertical: -6px;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-sticky-panel .ck-sticky-panel__content_sticky{position:fixed;top:0;z-index:var(--ck-z-modal)}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky_bottom-limit{position:absolute;top:auto}.ck.ck-sticky-panel .ck-sticky-panel__content_sticky{border-top-left-radius:0;border-top-right-radius:0;border-width:0 1px 1px;box-shadow:var(--ck-drop-shadow),0 0}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/panel/stickypanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/panel/stickypanel.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAMC,qDAEC,cAAe,CACf,KAAM,CAFN,yBAGD,CAEA,kEAEC,iBAAkB,CADlB,QAED,CCPA,qDAIC,wBAAyB,CACzB,yBAA0B,CAF1B,sBAAuB,CCFxB,oCDKA\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-sticky-panel {\\n\\t& .ck-sticky-panel__content_sticky {\\n\\t\\tz-index: var(--ck-z-modal); /* #315 */\\n\\t\\tposition: fixed;\\n\\t\\ttop: 0;\\n\\t}\\n\\n\\t& .ck-sticky-panel__content_sticky_bottom-limit {\\n\\t\\ttop: auto;\\n\\t\\tposition: absolute;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_shadow.css\\\";\\n\\n.ck.ck-sticky-panel {\\n\\t& .ck-sticky-panel__content_sticky {\\n\\t\\t@mixin ck-drop-shadow;\\n\\n\\t\\tborder-width: 0 1px 1px;\\n\\t\\tborder-top-left-radius: 0;\\n\\t\\tborder-top-right-radius: 0;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-vertical-form .ck-button:after{bottom:-1px;content:\\\"\\\";position:absolute;right:-1px;top:-1px;width:0;z-index:1}.ck-vertical-form .ck-button:focus:after{display:none}@media screen and (max-width:600px){.ck.ck-responsive-form .ck-button:after{bottom:-1px;content:\\\"\\\";position:absolute;right:-1px;top:-1px;width:0;z-index:1}.ck.ck-responsive-form .ck-button:focus:after{display:none}}.ck-vertical-form>.ck-button:nth-last-child(2):after{border-right:1px solid var(--ck-color-base-border)}.ck.ck-responsive-form{padding:var(--ck-spacing-large)}.ck.ck-responsive-form:focus{outline:none}[dir=ltr] .ck.ck-responsive-form>:not(:first-child),[dir=rtl] .ck.ck-responsive-form>:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-responsive-form{padding:0;width:calc(var(--ck-input-width)*.8)}.ck.ck-responsive-form .ck-labeled-field-view{margin:var(--ck-spacing-large) var(--ck-spacing-large) 0}.ck.ck-responsive-form .ck-labeled-field-view .ck-input-text{min-width:0;width:100%}.ck.ck-responsive-form .ck-labeled-field-view .ck-labeled-field-view__error{white-space:normal}.ck.ck-responsive-form>.ck-button:nth-last-child(2):after{border-right:1px solid var(--ck-color-base-border)}.ck.ck-responsive-form>.ck-button:last-child,.ck.ck-responsive-form>.ck-button:nth-last-child(2){border-radius:0;margin-top:var(--ck-spacing-large);padding:var(--ck-spacing-standard)}.ck.ck-responsive-form>.ck-button:last-child:not(:focus),.ck.ck-responsive-form>.ck-button:nth-last-child(2):not(:focus){border-top:1px solid var(--ck-color-base-border)}[dir=ltr] .ck.ck-responsive-form>.ck-button:last-child,[dir=ltr] .ck.ck-responsive-form>.ck-button:nth-last-child(2),[dir=rtl] .ck.ck-responsive-form>.ck-button:last-child,[dir=rtl] .ck.ck-responsive-form>.ck-button:nth-last-child(2){margin-left:0}[dir=rtl] .ck.ck-responsive-form>.ck-button:last-child:last-of-type,[dir=rtl] .ck.ck-responsive-form>.ck-button:nth-last-child(2):last-of-type{border-right:1px solid var(--ck-color-base-border)}}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/responsive-form/responsiveform.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_rwd.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/responsive-form/responsiveform.css\"],\"names\":[],\"mappings\":\"AAQC,mCAMC,WAAY,CALZ,UAAW,CAEX,iBAAkB,CAClB,UAAW,CACX,QAAS,CAHT,OAAQ,CAKR,SACD,CAEA,yCACC,YACD,CCdA,oCDoBE,wCAMC,WAAY,CALZ,UAAW,CAEX,iBAAkB,CAClB,UAAW,CACX,QAAS,CAHT,OAAQ,CAKR,SACD,CAEA,8CACC,YACD,CC9BF,CCAD,qDACC,kDACD,CAEA,uBACC,+BAmED,CAjEC,6BAEC,YACD,CASC,uGACC,sCACD,CDvBD,oCCMD,uBAqBE,SAAU,CACV,oCA8CF,CA5CE,8CACC,wDAWD,CATC,6DACC,WAAY,CACZ,UACD,CAGA,4EACC,kBACD,CAKA,0DACC,kDACD,CAGD,iGAIC,eAAgB,CADhB,kCAAmC,CADnC,kCAmBD,CAfC,yHACC,gDACD,CARD,0OAeE,aAMF,CAJE,+IACC,kDACD,CDpEH\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n\\n.ck-vertical-form .ck-button {\\n\\t&::after {\\n\\t\\tcontent: \\\"\\\";\\n\\t\\twidth: 0;\\n\\t\\tposition: absolute;\\n\\t\\tright: -1px;\\n\\t\\ttop: -1px;\\n\\t\\tbottom: -1px;\\n\\t\\tz-index: 1;\\n\\t}\\n\\n\\t&:focus::after {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\\n.ck.ck-responsive-form {\\n\\t@mixin ck-media-phone {\\n\\t\\t& .ck-button {\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\t\\twidth: 0;\\n\\t\\t\\t\\tposition: absolute;\\n\\t\\t\\t\\tright: -1px;\\n\\t\\t\\t\\ttop: -1px;\\n\\t\\t\\t\\tbottom: -1px;\\n\\t\\t\\t\\tz-index: 1;\\n\\t\\t\\t}\\n\\n\\t\\t\\t&:focus::after {\\n\\t\\t\\t\\tdisplay: none;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@define-mixin ck-media-phone {\\n\\t@media screen and (max-width: 600px) {\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_rwd.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck-vertical-form > .ck-button:nth-last-child(2)::after {\\n\\tborder-right: 1px solid var(--ck-color-base-border);\\n}\\n\\n.ck.ck-responsive-form {\\n\\tpadding: var(--ck-spacing-large);\\n\\n\\t&:focus {\\n\\t\\t/* See: https://github.com/ckeditor/ckeditor5/issues/4773 */\\n\\t\\toutline: none;\\n\\t}\\n\\n\\t@mixin ck-dir ltr {\\n\\t\\t& > :not(:first-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-dir rtl {\\n\\t\\t& > :not(:last-child) {\\n\\t\\t\\tmargin-left: var(--ck-spacing-standard);\\n\\t\\t}\\n\\t}\\n\\n\\t@mixin ck-media-phone {\\n\\t\\tpadding: 0;\\n\\t\\twidth: calc(.8 * var(--ck-input-width));\\n\\n\\t\\t& .ck-labeled-field-view {\\n\\t\\t\\tmargin: var(--ck-spacing-large) var(--ck-spacing-large) 0;\\n\\n\\t\\t\\t& .ck-input-text {\\n\\t\\t\\t\\tmin-width: 0;\\n\\t\\t\\t\\twidth: 100%;\\n\\t\\t\\t}\\n\\n\\t\\t\\t/* Let the long error messages wrap in the narrow form. */\\n\\t\\t\\t& .ck-labeled-field-view__error {\\n\\t\\t\\t\\twhite-space: normal;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* Styles for two last buttons in the form (save&cancel, edit&unlink, etc.). */\\n\\t\\t& > .ck-button:nth-last-child(2) {\\n\\t\\t\\t&::after {\\n\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t& > .ck-button:nth-last-child(1),\\n\\t\\t& > .ck-button:nth-last-child(2) {\\n\\t\\t\\tpadding: var(--ck-spacing-standard);\\n\\t\\t\\tmargin-top: var(--ck-spacing-large);\\n\\t\\t\\tborder-radius: 0;\\n\\n\\t\\t\\t&:not(:focus) {\\n\\t\\t\\t\\tborder-top: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir ltr {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\t\\t\\t}\\n\\n\\t\\t\\t@mixin ck-dir rtl {\\n\\t\\t\\t\\tmargin-left: 0;\\n\\n\\t\\t\\t\\t&:last-of-type {\\n\\t\\t\\t\\t\\tborder-right: 1px solid var(--ck-color-base-border);\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-block-toolbar-button{position:absolute;z-index:var(--ck-z-default)}:root{--ck-color-block-toolbar-button:var(--ck-color-text);--ck-block-toolbar-button-size:var(--ck-font-size-normal)}.ck.ck-block-toolbar-button{color:var(--ck-color-block-toolbar-button);font-size:var(--ck-block-toolbar-size)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/toolbar/blocktoolbar.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/toolbar/blocktoolbar.css\"],\"names\":[],\"mappings\":\"AAKA,4BACC,iBAAkB,CAClB,2BACD,CCHA,MACC,oDAAqD,CACrD,yDACD,CAEA,4BACC,0CAA2C,CAC3C,sCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-block-toolbar-button {\\n\\tposition: absolute;\\n\\tz-index: var(--ck-z-default);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-block-toolbar-button: var(--ck-color-text);\\n\\t--ck-block-toolbar-button-size: var(--ck-font-size-normal);\\n}\\n\\n.ck.ck-block-toolbar-button {\\n\\tcolor: var(--ck-color-block-toolbar-button);\\n\\tfont-size: var(--ck-block-toolbar-size);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-toolbar{align-items:center;display:flex;flex-flow:row nowrap;-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.ck.ck-toolbar>.ck-toolbar__items{align-items:center;display:flex;flex-flow:row wrap;flex-grow:1}.ck.ck-toolbar .ck.ck-toolbar__separator{display:inline-block}.ck.ck-toolbar .ck.ck-toolbar__separator:first-child,.ck.ck-toolbar .ck.ck-toolbar__separator:last-child{display:none}.ck.ck-toolbar .ck-toolbar__line-break{flex-basis:100%}.ck.ck-toolbar.ck-toolbar_grouping>.ck-toolbar__items{flex-wrap:nowrap}.ck.ck-toolbar.ck-toolbar_vertical>.ck-toolbar__items{flex-direction:column}.ck.ck-toolbar.ck-toolbar_floating>.ck-toolbar__items{flex-wrap:nowrap}.ck.ck-toolbar>.ck.ck-toolbar__grouped-dropdown>.ck-dropdown__button .ck-dropdown__arrow{display:none}.ck.ck-toolbar{border-radius:0}.ck-rounded-corners .ck.ck-toolbar,.ck.ck-toolbar.ck-rounded-corners{border-radius:var(--ck-border-radius)}.ck.ck-toolbar{background:var(--ck-color-toolbar-background);border:1px solid var(--ck-color-toolbar-border);padding:0 var(--ck-spacing-small)}.ck.ck-toolbar .ck.ck-toolbar__separator{align-self:stretch;background:var(--ck-color-toolbar-border);margin-bottom:var(--ck-spacing-small);margin-top:var(--ck-spacing-small);min-width:1px;width:1px}.ck.ck-toolbar .ck-toolbar__line-break{height:0}.ck.ck-toolbar>.ck-toolbar__items>:not(.ck-toolbar__line-break){margin-right:var(--ck-spacing-small)}.ck.ck-toolbar>.ck-toolbar__items:empty+.ck.ck-toolbar__separator{display:none}.ck.ck-toolbar>.ck-toolbar__items>:not(.ck-toolbar__line-break),.ck.ck-toolbar>.ck.ck-toolbar__grouped-dropdown{margin-bottom:var(--ck-spacing-small);margin-top:var(--ck-spacing-small)}.ck.ck-toolbar.ck-toolbar_vertical{padding:0}.ck.ck-toolbar.ck-toolbar_vertical>.ck-toolbar__items>.ck{border-radius:0;margin:0;width:100%}.ck.ck-toolbar.ck-toolbar_compact{padding:0}.ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>*{margin:0}.ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>:not(:first-child):not(:last-child){border-radius:0}.ck.ck-toolbar>.ck.ck-toolbar__grouped-dropdown>.ck.ck-button.ck-dropdown__button{padding-left:var(--ck-spacing-tiny)}.ck.ck-toolbar .ck-toolbar__nested-toolbar-dropdown>.ck-dropdown__panel{min-width:auto}.ck.ck-toolbar .ck-toolbar__nested-toolbar-dropdown>.ck-button>.ck-button__label{max-width:7em;width:auto}.ck-toolbar-container .ck.ck-toolbar{border:0}.ck.ck-toolbar[dir=rtl]>.ck-toolbar__items>.ck,[dir=rtl] .ck.ck-toolbar>.ck-toolbar__items>.ck{margin-right:0}.ck.ck-toolbar[dir=rtl]:not(.ck-toolbar_compact)>.ck-toolbar__items>.ck,[dir=rtl] .ck.ck-toolbar:not(.ck-toolbar_compact)>.ck-toolbar__items>.ck{margin-left:var(--ck-spacing-small)}.ck.ck-toolbar[dir=rtl]>.ck-toolbar__items>.ck:last-child,[dir=rtl] .ck.ck-toolbar>.ck-toolbar__items>.ck:last-child{margin-left:0}.ck.ck-toolbar.ck-toolbar_compact[dir=rtl]>.ck-toolbar__items>.ck:first-child,[dir=rtl] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:first-child{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-toolbar.ck-toolbar_compact[dir=rtl]>.ck-toolbar__items>.ck:last-child,[dir=rtl] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:last-child{border-bottom-right-radius:0;border-top-right-radius:0}.ck.ck-toolbar.ck-toolbar_grouping[dir=rtl]>.ck-toolbar__items:not(:empty):not(:only-child),.ck.ck-toolbar[dir=rtl]>.ck.ck-toolbar__separator,[dir=rtl] .ck.ck-toolbar.ck-toolbar_grouping>.ck-toolbar__items:not(:empty):not(:only-child),[dir=rtl] .ck.ck-toolbar>.ck.ck-toolbar__separator{margin-left:var(--ck-spacing-small)}.ck.ck-toolbar[dir=ltr]>.ck-toolbar__items>.ck:last-child,[dir=ltr] .ck.ck-toolbar>.ck-toolbar__items>.ck:last-child{margin-right:0}.ck.ck-toolbar.ck-toolbar_compact[dir=ltr]>.ck-toolbar__items>.ck:first-child,[dir=ltr] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:first-child{border-bottom-right-radius:0;border-top-right-radius:0}.ck.ck-toolbar.ck-toolbar_compact[dir=ltr]>.ck-toolbar__items>.ck:last-child,[dir=ltr] .ck.ck-toolbar.ck-toolbar_compact>.ck-toolbar__items>.ck:last-child{border-bottom-left-radius:0;border-top-left-radius:0}.ck.ck-toolbar.ck-toolbar_grouping[dir=ltr]>.ck-toolbar__items:not(:empty):not(:only-child),.ck.ck-toolbar[dir=ltr]>.ck.ck-toolbar__separator,[dir=ltr] .ck.ck-toolbar.ck-toolbar_grouping>.ck-toolbar__items:not(:empty):not(:only-child),[dir=ltr] .ck.ck-toolbar>.ck.ck-toolbar__separator{margin-right:var(--ck-spacing-small)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/toolbar/toolbar.css\",\"webpack://./../ckeditor5-ui/theme/mixins/_unselectable.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/toolbar/toolbar.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_rounded.css\"],\"names\":[],\"mappings\":\"AAOA,eAKC,kBAAmB,CAFnB,YAAa,CACb,oBAAqB,CCFrB,qBAAsB,CACtB,wBAAyB,CACzB,oBAAqB,CACrB,gBD6CD,CA3CC,kCAGC,kBAAmB,CAFnB,YAAa,CACb,kBAAmB,CAEnB,WAED,CAEA,yCACC,oBAWD,CAJC,yGAEC,YACD,CAGD,uCACC,eACD,CAEA,sDACC,gBACD,CAEA,sDACC,qBACD,CAEA,sDACC,gBACD,CAGC,yFACC,YACD,CE/CF,eCGC,eDoGD,CAvGA,qECOE,qCDgGF,CAvGA,eAGC,6CAA8C,CAE9C,+CAAgD,CADhD,iCAmGD,CAhGC,yCACC,kBAAmB,CAGnB,yCAA0C,CAO1C,qCAAsC,CADtC,kCAAmC,CAPnC,aAAc,CADd,SAUD,CAEA,uCACC,QACD,CAGC,gEAEC,oCACD,CAIA,kEACC,YACD,CAGD,gHAIC,qCAAsC,CADtC,kCAED,CAEA,mCAEC,SAaD,CAVC,0DAQC,eAAgB,CAHhB,QAAS,CAHT,UAOD,CAGD,kCAEC,SAWD,CATC,uDAEC,QAMD,CAHC,yFACC,eACD,CASD,kFACC,mCACD,CAMA,wEACC,cACD,CAEA,iFACC,aAAc,CACd,UACD,CAjGF,qCAqGE,QAEF,CAYC,+FACC,cACD,CAEA,iJAEC,mCACD,CAEA,qHACC,aACD,CAIC,6JAEC,2BAA4B,CAD5B,wBAED,CAGA,2JAEC,4BAA6B,CAD7B,yBAED,CASD,8RACC,mCACD,CAWA,qHACC,cACD,CAIC,6JAEC,4BAA6B,CAD7B,yBAED,CAGA,2JAEC,2BAA4B,CAD5B,wBAED,CASD,8RACC,oCACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../mixins/_unselectable.css\\\";\\n\\n.ck.ck-toolbar {\\n\\t@mixin ck-unselectable;\\n\\n\\tdisplay: flex;\\n\\tflex-flow: row nowrap;\\n\\talign-items: center;\\n\\n\\t& > .ck-toolbar__items {\\n\\t\\tdisplay: flex;\\n\\t\\tflex-flow: row wrap;\\n\\t\\talign-items: center;\\n\\t\\tflex-grow: 1;\\n\\n\\t}\\n\\n\\t& .ck.ck-toolbar__separator {\\n\\t\\tdisplay: inline-block;\\n\\n\\t\\t/*\\n\\t\\t * A leading or trailing separator makes no sense (separates from nothing on one side).\\n\\t\\t * For instance, it can happen when toolbar items (also separators) are getting grouped one by one and\\n\\t\\t * moved to another toolbar in the dropdown.\\n\\t\\t */\\n\\t\\t&:first-child,\\n\\t\\t&:last-child {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t& .ck-toolbar__line-break {\\n\\t\\tflex-basis: 100%;\\n\\t}\\n\\n\\t&.ck-toolbar_grouping > .ck-toolbar__items {\\n\\t\\tflex-wrap: nowrap;\\n\\t}\\n\\n\\t&.ck-toolbar_vertical > .ck-toolbar__items {\\n\\t\\tflex-direction: column;\\n\\t}\\n\\n\\t&.ck-toolbar_floating > .ck-toolbar__items {\\n\\t\\tflex-wrap: nowrap;\\n\\t}\\n\\n\\t& > .ck.ck-toolbar__grouped-dropdown {\\n\\t\\t& > .ck-dropdown__button .ck-dropdown__arrow {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Makes element unselectable.\\n */\\n@define-mixin ck-unselectable {\\n\\t-moz-user-select: none;\\n\\t-webkit-user-select: none;\\n\\t-ms-user-select: none;\\n\\tuser-select: none\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n@import \\\"@ckeditor/ckeditor5-ui/theme/mixins/_dir.css\\\";\\n\\n.ck.ck-toolbar {\\n\\t@mixin ck-rounded-corners;\\n\\n\\tbackground: var(--ck-color-toolbar-background);\\n\\tpadding: 0 var(--ck-spacing-small);\\n\\tborder: 1px solid var(--ck-color-toolbar-border);\\n\\n\\t& .ck.ck-toolbar__separator {\\n\\t\\talign-self: stretch;\\n\\t\\twidth: 1px;\\n\\t\\tmin-width: 1px;\\n\\t\\tbackground: var(--ck-color-toolbar-border);\\n\\n\\t\\t/*\\n\\t\\t * These margins make the separators look better in balloon toolbars (when aligned with the \\\"tip\\\").\\n\\t\\t * See https://github.com/ckeditor/ckeditor5/issues/7493.\\n\\t\\t */\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\t\\tmargin-bottom: var(--ck-spacing-small);\\n\\t}\\n\\n\\t& .ck-toolbar__line-break {\\n\\t\\theight: 0;\\n\\t}\\n\\n\\t& > .ck-toolbar__items {\\n\\t\\t& > *:not(.ck-toolbar__line-break) {\\n\\t\\t\\t/* (#11) Separate toolbar items. */\\n\\t\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t\\t}\\n\\n\\t\\t/* Don't display a separator after an empty items container, for instance,\\n\\t\\twhen all items were grouped */\\n\\t\\t&:empty + .ck.ck-toolbar__separator {\\n\\t\\t\\tdisplay: none;\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck-toolbar__items > *:not(.ck-toolbar__line-break),\\n\\t& > .ck.ck-toolbar__grouped-dropdown {\\n\\t\\t/* Make sure items wrapped to the next line have v-spacing */\\n\\t\\tmargin-top: var(--ck-spacing-small);\\n\\t\\tmargin-bottom: var(--ck-spacing-small);\\n\\t}\\n\\n\\t&.ck-toolbar_vertical {\\n\\t\\t/* Items in a vertical toolbar span the entire width. */\\n\\t\\tpadding: 0;\\n\\n\\t\\t/* Specificity matters here. See https://github.com/ckeditor/ckeditor5-theme-lark/issues/168. */\\n\\t\\t& > .ck-toolbar__items > .ck {\\n\\t\\t\\t/* Items in a vertical toolbar should span the horizontal space. */\\n\\t\\t\\twidth: 100%;\\n\\n\\t\\t\\t/* Items in a vertical toolbar should have no margin. */\\n\\t\\t\\tmargin: 0;\\n\\n\\t\\t\\t/* Items in a vertical toolbar span the entire width so rounded corners are pointless. */\\n\\t\\t\\tborder-radius: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-toolbar_compact {\\n\\t\\t/* No spacing around items. */\\n\\t\\tpadding: 0;\\n\\n\\t\\t& > .ck-toolbar__items > * {\\n\\t\\t\\t/* Compact toolbar items have no spacing between them. */\\n\\t\\t\\tmargin: 0;\\n\\n\\t\\t\\t/* \\\"Middle\\\" children should have no rounded corners. */\\n\\t\\t\\t&:not(:first-child):not(:last-child) {\\n\\t\\t\\t\\tborder-radius: 0;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t& > .ck.ck-toolbar__grouped-dropdown {\\n\\t\\t/*\\n\\t\\t * Dropdown button has asymmetric padding to fit the arrow.\\n\\t\\t * This button has no arrow so let's revert that padding back to normal.\\n\\t\\t */\\n\\t\\t& > .ck.ck-button.ck-dropdown__button {\\n\\t\\t\\tpadding-left: var(--ck-spacing-tiny);\\n\\t\\t}\\n\\t}\\n\\n\\t/* A drop-down containing the nested toolbar with configured items. */\\n\\t& .ck-toolbar__nested-toolbar-dropdown {\\n\\t\\t/* Prevent empty space in the panel when the dropdown label is visible and long but the toolbar has few items. */\\n\\t\\t& > .ck-dropdown__panel {\\n\\t\\t\\tmin-width: auto;\\n\\t\\t}\\n\\n\\t\\t& > .ck-button > .ck-button__label {\\n\\t\\t\\tmax-width: 7em;\\n\\t\\t\\twidth: auto;\\n\\t\\t}\\n\\t}\\n\\n\\t@nest .ck-toolbar-container & {\\n\\t\\tborder: 0;\\n\\t}\\n}\\n\\n/* stylelint-disable */\\n\\n/*\\n * Styles for RTL toolbars.\\n *\\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own \\\"dir\\\"\\n * because its parent is not controlled by the editor framework.\\n */\\n[dir=\\\"rtl\\\"] .ck.ck-toolbar,\\n.ck.ck-toolbar[dir=\\\"rtl\\\"] {\\n\\t& > .ck-toolbar__items > .ck {\\n\\t\\tmargin-right: 0;\\n\\t}\\n\\n\\t&:not(.ck-toolbar_compact) > .ck-toolbar__items > .ck {\\n\\t\\t/* (#11) Separate toolbar items. */\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n\\n\\t& > .ck-toolbar__items > .ck:last-child {\\n\\t\\tmargin-left: 0;\\n\\t}\\n\\n\\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\\n\\t\\t/* No rounded corners on the right side of the first child. */\\n\\t\\t&:first-child {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t}\\n\\n\\t\\t/* No rounded corners on the left side of the last child. */\\n\\t\\t&:last-child {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\\n\\t& > .ck.ck-toolbar__separator {\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n\\n\\t/* Some spacing between the items and the separator before the grouped items dropdown. */\\n\\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\\n\\t\\tmargin-left: var(--ck-spacing-small);\\n\\t}\\n}\\n\\n/*\\n * Styles for LTR toolbars.\\n *\\n * Note: In some cases (e.g. a decoupled editor), the toolbar has its own \\\"dir\\\"\\n * because its parent is not controlled by the editor framework.\\n */\\n[dir=\\\"ltr\\\"] .ck.ck-toolbar,\\n.ck.ck-toolbar[dir=\\\"ltr\\\"] {\\n\\t& > .ck-toolbar__items > .ck:last-child {\\n\\t\\tmargin-right: 0;\\n\\t}\\n\\n\\t&.ck-toolbar_compact > .ck-toolbar__items > .ck {\\n\\t\\t/* No rounded corners on the right side of the first child. */\\n\\t\\t&:first-child {\\n\\t\\t\\tborder-top-right-radius: 0;\\n\\t\\t\\tborder-bottom-right-radius: 0;\\n\\t\\t}\\n\\n\\t\\t/* No rounded corners on the left side of the last child. */\\n\\t\\t&:last-child {\\n\\t\\t\\tborder-top-left-radius: 0;\\n\\t\\t\\tborder-bottom-left-radius: 0;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Separate the the separator form the grouping dropdown when some items are grouped. */\\n\\t& > .ck.ck-toolbar__separator {\\n\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t}\\n\\n\\t/* Some spacing between the items and the separator before the grouped items dropdown. */\\n\\t&.ck-toolbar_grouping > .ck-toolbar__items:not(:empty):not(:only-child) {\\n\\t\\tmargin-right: var(--ck-spacing-small);\\n\\t}\\n}\\n\\n/* stylelint-enable */\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Implements rounded corner interface for .ck-rounded-corners class.\\n *\\n * @see $ck-border-radius\\n */\\n@define-mixin ck-rounded-corners {\\n\\tborder-radius: 0;\\n\\n\\t@nest .ck-rounded-corners &,\\n\\t&.ck-rounded-corners {\\n\\t\\tborder-radius: var(--ck-border-radius);\\n\\t\\t@mixin-content;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck.ck-balloon-panel.ck-tooltip{--ck-balloon-border-width:0px;--ck-balloon-arrow-offset:0px;--ck-balloon-arrow-half-width:4px;--ck-balloon-arrow-height:4px;--ck-color-panel-background:var(--ck-color-tooltip-background);padding:0 var(--ck-spacing-medium);pointer-events:none;z-index:calc(var(--ck-z-modal) + 100)}.ck.ck-balloon-panel.ck-tooltip .ck-tooltip__text{color:var(--ck-color-tooltip-text);font-size:.9em;line-height:1.5}.ck.ck-balloon-panel.ck-tooltip{box-shadow:none}.ck.ck-balloon-panel.ck-tooltip:before{display:none}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-ui/theme/components/tooltip/tooltip.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-ui/components/tooltip/tooltip.css\"],\"names\":[],\"mappings\":\"AAKA,gCCGC,6BAA8B,CAC9B,6BAA8B,CAC9B,iCAAkC,CAClC,6BAA8B,CAC9B,8DAA+D,CAE/D,kCAAmC,CDPnC,mBAAoB,CAEpB,qCACD,CCMC,kDAGC,kCAAmC,CAFnC,cAAe,CACf,eAED,CAbD,gCAgBC,eAMD,CAHC,uCACC,YACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck.ck-balloon-panel.ck-tooltip {\\n\\t/* Keep tooltips transparent for any interactions. */\\n\\tpointer-events: none;\\n\\n\\tz-index: calc( var(--ck-z-modal) + 100 );\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../../../mixins/_rounded.css\\\";\\n\\n.ck.ck-balloon-panel.ck-tooltip {\\n\\t--ck-balloon-border-width: 0px;\\n\\t--ck-balloon-arrow-offset: 0px;\\n\\t--ck-balloon-arrow-half-width: 4px;\\n\\t--ck-balloon-arrow-height: 4px;\\n\\t--ck-color-panel-background: var(--ck-color-tooltip-background);\\n\\n\\tpadding: 0 var(--ck-spacing-medium);\\n\\n\\t& .ck-tooltip__text {\\n\\t\\tfont-size: .9em;\\n\\t\\tline-height: 1.5;\\n\\t\\tcolor: var(--ck-color-tooltip-text);\\n\\t}\\n\\n\\t/* Reset balloon panel styles */\\n\\tbox-shadow: none;\\n\\n\\t/* Hide the default shadow of the .ck-balloon-panel tip */\\n\\t&::before {\\n\\t\\tdisplay: none;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck-hidden{display:none!important}.ck-reset_all :not(.ck-reset_all-excluded *),.ck.ck-reset,.ck.ck-reset_all{box-sizing:border-box;height:auto;position:static;width:auto}:root{--ck-z-default:1;--ck-z-modal:calc(var(--ck-z-default) + 999)}.ck-transitions-disabled,.ck-transitions-disabled *{transition:none!important}:root{--ck-color-base-foreground:#fafafa;--ck-color-base-background:#fff;--ck-color-base-border:#ccced1;--ck-color-base-action:#53a336;--ck-color-base-focus:#6cb5f9;--ck-color-base-text:#333;--ck-color-base-active:#2977ff;--ck-color-base-active-focus:#0d65ff;--ck-color-base-error:#db3700;--ck-color-focus-border-coordinates:218,81.8%,56.9%;--ck-color-focus-border:hsl(var(--ck-color-focus-border-coordinates));--ck-color-focus-outer-shadow:#cae1fc;--ck-color-focus-disabled-shadow:rgba(119,186,248,.3);--ck-color-focus-error-shadow:rgba(255,64,31,.3);--ck-color-text:var(--ck-color-base-text);--ck-color-shadow-drop:rgba(0,0,0,.15);--ck-color-shadow-drop-active:rgba(0,0,0,.2);--ck-color-shadow-inner:rgba(0,0,0,.1);--ck-color-button-default-background:transparent;--ck-color-button-default-hover-background:#f0f0f0;--ck-color-button-default-active-background:#f0f0f0;--ck-color-button-default-disabled-background:transparent;--ck-color-button-on-background:#f0f7ff;--ck-color-button-on-hover-background:#dbecff;--ck-color-button-on-active-background:#dbecff;--ck-color-button-on-disabled-background:#f0f2f4;--ck-color-button-on-color:#2977ff;--ck-color-button-action-background:var(--ck-color-base-action);--ck-color-button-action-hover-background:#4d9d30;--ck-color-button-action-active-background:#4d9d30;--ck-color-button-action-disabled-background:#7ec365;--ck-color-button-action-text:var(--ck-color-base-background);--ck-color-button-save:#008a00;--ck-color-button-cancel:#db3700;--ck-color-switch-button-off-background:#939393;--ck-color-switch-button-off-hover-background:#7d7d7d;--ck-color-switch-button-on-background:var(--ck-color-button-action-background);--ck-color-switch-button-on-hover-background:#4d9d30;--ck-color-switch-button-inner-background:var(--ck-color-base-background);--ck-color-switch-button-inner-shadow:rgba(0,0,0,.1);--ck-color-dropdown-panel-background:var(--ck-color-base-background);--ck-color-dropdown-panel-border:var(--ck-color-base-border);--ck-color-input-background:var(--ck-color-base-background);--ck-color-input-border:var(--ck-color-base-border);--ck-color-input-error-border:var(--ck-color-base-error);--ck-color-input-text:var(--ck-color-base-text);--ck-color-input-disabled-background:#f2f2f2;--ck-color-input-disabled-border:var(--ck-color-base-border);--ck-color-input-disabled-text:#757575;--ck-color-list-background:var(--ck-color-base-background);--ck-color-list-button-hover-background:var(--ck-color-button-default-hover-background);--ck-color-list-button-on-background:var(--ck-color-button-on-color);--ck-color-list-button-on-background-focus:var(--ck-color-button-on-color);--ck-color-list-button-on-text:var(--ck-color-base-background);--ck-color-panel-background:var(--ck-color-base-background);--ck-color-panel-border:var(--ck-color-base-border);--ck-color-toolbar-background:var(--ck-color-base-background);--ck-color-toolbar-border:var(--ck-color-base-border);--ck-color-tooltip-background:var(--ck-color-base-text);--ck-color-tooltip-text:var(--ck-color-base-background);--ck-color-engine-placeholder-text:#707070;--ck-color-upload-bar-background:#6cb5f9;--ck-color-link-default:#0000f0;--ck-color-link-selected-background:rgba(31,176,255,.1);--ck-color-link-fake-selection:rgba(31,176,255,.3);--ck-color-highlight-background:#ff0;--ck-disabled-opacity:.5;--ck-focus-outer-shadow-geometry:0 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*),.ck.ck-reset_all{border-collapse:collapse;color:var(--ck-color-text);cursor:auto;float:none;font:normal normal normal var(--ck-font-size-base)/var(--ck-line-height-base) var(--ck-font-face);text-align:left;white-space:nowrap}.ck-reset_all .ck-rtl :not(.ck-reset_all-excluded *){text-align:right}.ck-reset_all iframe:not(.ck-reset_all-excluded *){vertical-align:inherit}.ck-reset_all textarea:not(.ck-reset_all-excluded *){white-space:pre-wrap}.ck-reset_all input[type=password]:not(.ck-reset_all-excluded *),.ck-reset_all input[type=text]:not(.ck-reset_all-excluded *),.ck-reset_all textarea:not(.ck-reset_all-excluded *){cursor:text}.ck-reset_all input[type=password][disabled]:not(.ck-reset_all-excluded *),.ck-reset_all input[type=text][disabled]:not(.ck-reset_all-excluded *),.ck-reset_all textarea[disabled]:not(.ck-reset_all-excluded *){cursor:default}.ck-reset_all fieldset:not(.ck-reset_all-excluded *){border:2px groove #dfdee3;padding:10px}.ck-reset_all button:not(.ck-reset_all-excluded 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All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-z-default: 1;\\n\\t--ck-z-modal: calc( var(--ck-z-default) + 999 );\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A class that disables all transitions of the element and its children.\\n */\\n.ck-transitions-disabled,\\n.ck-transitions-disabled * {\\n\\ttransition: none !important;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-base-foreground: \\t\\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 98%);\\n\\t--ck-color-base-background: \\t\\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 100%);\\n\\t--ck-color-base-border: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(220, 6%, 81%);\\n\\t--ck-color-base-action: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(104, 50.2%, 42.5%);\\n\\t--ck-color-base-focus: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(209, 92%, 70%);\\n\\t--ck-color-base-text: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 20%);\\n\\t--ck-color-base-active: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(218.1, 100%, 58%);\\n\\t--ck-color-base-active-focus:\\t\\t\\t\\t\\t\\t\\t\\thsl(218.2, 100%, 52.5%);\\n\\t--ck-color-base-error:\\t\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(15, 100%, 43%);\\n\\n\\t/* -- Generic colors ------------------------------------------------------------------------ */\\n\\n\\t--ck-color-focus-border-coordinates: \\t\\t\\t\\t\\t\\t218, 81.8%, 56.9%;\\n\\t--ck-color-focus-border: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(var(--ck-color-focus-border-coordinates));\\n\\t--ck-color-focus-outer-shadow:\\t\\t\\t\\t\\t\\t\\t\\thsl(212.4, 89.3%, 89%);\\n\\t--ck-color-focus-disabled-shadow:\\t\\t\\t\\t\\t\\t\\thsla(209, 90%, 72%,.3);\\n\\t--ck-color-focus-error-shadow:\\t\\t\\t\\t\\t\\t\\t\\thsla(9,100%,56%,.3);\\n\\t--ck-color-text: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-text);\\n\\t--ck-color-shadow-drop: \\t\\t\\t\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.15);\\n\\t--ck-color-shadow-drop-active:\\t\\t\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.2);\\n\\t--ck-color-shadow-inner: \\t\\t\\t\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.1);\\n\\n\\t/* -- Buttons ------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-button-default-background: \\t\\t\\t\\t\\t\\ttransparent;\\n\\t--ck-color-button-default-hover-background: \\t\\t\\t\\thsl(0, 0%, 94.1%);\\n\\t--ck-color-button-default-active-background: \\t\\t\\t\\thsl(0, 0%, 94.1%);\\n\\t--ck-color-button-default-disabled-background: \\t\\t\\t\\ttransparent;\\n\\n\\t--ck-color-button-on-background: \\t\\t\\t\\t\\t\\t\\thsl(212, 100%, 97.1%);\\n\\t--ck-color-button-on-hover-background: \\t\\t\\t\\t\\t\\thsl(211.7, 100%, 92.9%);\\n\\t--ck-color-button-on-active-background: \\t\\t\\t\\t\\thsl(211.7, 100%, 92.9%);\\n\\t--ck-color-button-on-disabled-background: \\t\\t\\t\\t\\thsl(211, 15%, 95%);\\n\\t--ck-color-button-on-color:\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(218.1, 100%, 58%);\\n\\n\\n\\t--ck-color-button-action-background: \\t\\t\\t\\t\\t\\tvar(--ck-color-base-action);\\n\\t--ck-color-button-action-hover-background: \\t\\t\\t\\t\\thsl(104, 53.2%, 40.2%);\\n\\t--ck-color-button-action-active-background: \\t\\t\\t\\thsl(104, 53.2%, 40.2%);\\n\\t--ck-color-button-action-disabled-background: \\t\\t\\t\\thsl(104, 44%, 58%);\\n\\t--ck-color-button-action-text: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\n\\t--ck-color-button-save: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(120, 100%, 27%);\\n\\t--ck-color-button-cancel: \\t\\t\\t\\t\\t\\t\\t\\t\\thsl(15, 100%, 43%);\\n\\n\\t--ck-color-switch-button-off-background:\\t\\t\\t\\t\\thsl(0, 0%, 57.6%);\\n\\t--ck-color-switch-button-off-hover-background:\\t\\t\\t\\thsl(0, 0%, 49%);\\n\\t--ck-color-switch-button-on-background:\\t\\t\\t\\t\\t\\tvar(--ck-color-button-action-background);\\n\\t--ck-color-switch-button-on-hover-background:\\t\\t\\t\\thsl(104, 53.2%, 40.2%);\\n\\t--ck-color-switch-button-inner-background:\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-switch-button-inner-shadow:\\t\\t\\t\\t\\t\\thsla(0, 0%, 0%, 0.1);\\n\\n\\t/* -- Dropdown ------------------------------------------------------------------------------ */\\n\\n\\t--ck-color-dropdown-panel-background: \\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-dropdown-panel-border: \\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\n\\t/* -- Input --------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-input-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-input-border: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\t--ck-color-input-error-border:\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-error);\\n\\t--ck-color-input-text: \\t\\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-text);\\n\\t--ck-color-input-disabled-background: \\t\\t\\t\\t\\t\\thsl(0, 0%, 95%);\\n\\t--ck-color-input-disabled-border: \\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\t--ck-color-input-disabled-text: \\t\\t\\t\\t\\t\\t\\thsl(0, 0%, 46%);\\n\\n\\t/* -- List ---------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-list-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-list-button-hover-background: \\t\\t\\t\\t\\tvar(--ck-color-button-default-hover-background);\\n\\t--ck-color-list-button-on-background: \\t\\t\\t\\t\\t\\tvar(--ck-color-button-on-color);\\n\\t--ck-color-list-button-on-background-focus: \\t\\t\\t\\tvar(--ck-color-button-on-color);\\n\\t--ck-color-list-button-on-text:\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\n\\t/* -- Panel --------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-panel-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-panel-border: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\n\\t/* -- Toolbar ------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-toolbar-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\t--ck-color-toolbar-border: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-border);\\n\\n\\t/* -- Tooltip ------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-tooltip-background: \\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-text);\\n\\t--ck-color-tooltip-text: \\t\\t\\t\\t\\t\\t\\t\\t\\tvar(--ck-color-base-background);\\n\\n\\t/* -- Engine -------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-engine-placeholder-text: \\t\\t\\t\\t\\t\\thsl(0, 0%, 44%);\\n\\n\\t/* -- Upload -------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-upload-bar-background:\\t\\t \\t\\t\\t\\t\\thsl(209, 92%, 70%);\\n\\n\\t/* -- Link -------------------------------------------------------------------------------- */\\n\\n\\t--ck-color-link-default:\\t\\t\\t\\t\\t\\t\\t\\t\\thsl(240, 100%, 47%);\\n\\t--ck-color-link-selected-background:\\t\\t\\t\\t\\t\\thsla(201, 100%, 56%, 0.1);\\n\\t--ck-color-link-fake-selection:\\t\\t\\t\\t\\t\\t\\t\\thsla(201, 100%, 56%, 0.3);\\n\\n\\t/* -- Search result highlight ---------------------------------------------------------------- */\\n\\n\\t--ck-color-highlight-background:\\t\\t\\t\\t\\t\\t\\thsl(60, 100%, 50%)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/**\\n\\t * An opacity value of disabled UI item.\\n\\t */\\n\\t--ck-disabled-opacity: .5;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/**\\n\\t * The geometry of the of focused element's outer shadow.\\n\\t */\\n\\t--ck-focus-outer-shadow-geometry: 0 0 0 3px;\\n\\n\\t/**\\n\\t * A visual style of focused element's outer shadow.\\n\\t */\\n\\t--ck-focus-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-outer-shadow);\\n\\n\\t/**\\n\\t * A visual style of focused element's outer shadow (when disabled).\\n\\t */\\n\\t--ck-focus-disabled-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-disabled-shadow);\\n\\n\\t/**\\n\\t * A visual style of focused element's outer shadow (when has errors).\\n\\t */\\n\\t--ck-focus-error-outer-shadow: var(--ck-focus-outer-shadow-geometry) var(--ck-color-focus-error-shadow);\\n\\n\\t/**\\n\\t * A visual style of focused element's border or outline.\\n\\t */\\n\\t--ck-focus-ring: 1px solid var(--ck-color-focus-border);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-font-size-base: 13px;\\n\\t--ck-line-height-base: 1.84615;\\n\\t--ck-font-face: Helvetica, Arial, Tahoma, Verdana, Sans-Serif;\\n\\n\\t--ck-font-size-tiny: 0.7em;\\n\\t--ck-font-size-small: 0.75em;\\n\\t--ck-font-size-normal: 1em;\\n\\t--ck-font-size-big: 1.4em;\\n\\t--ck-font-size-large: 1.8em;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/* This is super-important. This is **manually** adjusted so a button without an icon\\n\\tis never smaller than a button with icon, additionally making sure that text-less buttons\\n\\tare perfect squares. The value is also shared by other components which should stay \\\"in-line\\\"\\n\\twith buttons. */\\n\\t--ck-ui-component-min-height: 2.3em;\\n}\\n\\n/**\\n * Resets an element, ignoring its children.\\n */\\n.ck.ck-reset,\\n.ck.ck-reset_all,\\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\\n\\t/* Do not include inheritable rules here. */\\n\\tmargin: 0;\\n\\tpadding: 0;\\n\\tborder: 0;\\n\\tbackground: transparent;\\n\\ttext-decoration: none;\\n\\tvertical-align: middle;\\n\\ttransition: none;\\n\\n\\t/* https://github.com/ckeditor/ckeditor5-theme-lark/issues/105 */\\n\\tword-wrap: break-word;\\n}\\n\\n/**\\n * Resets an element AND its children.\\n */\\n.ck.ck-reset_all,\\n.ck-reset_all *:not(.ck-reset_all-excluded *) {\\n\\t/* These are rule inherited by all children elements. */\\n\\tborder-collapse: collapse;\\n\\tfont: normal normal normal var(--ck-font-size-base)/var(--ck-line-height-base) var(--ck-font-face);\\n\\tcolor: var(--ck-color-text);\\n\\ttext-align: left;\\n\\twhite-space: nowrap;\\n\\tcursor: auto;\\n\\tfloat: none;\\n}\\n\\n.ck-reset_all {\\n\\t& .ck-rtl *:not(.ck-reset_all-excluded *) {\\n\\t\\ttext-align: right;\\n\\t}\\n\\n\\t& iframe:not(.ck-reset_all-excluded *) {\\n\\t\\t/* For IE */\\n\\t\\tvertical-align: inherit;\\n\\t}\\n\\n\\t& textarea:not(.ck-reset_all-excluded *) {\\n\\t\\twhite-space: pre-wrap;\\n\\t}\\n\\n\\t& textarea:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"text\\\"]:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"password\\\"]:not(.ck-reset_all-excluded *) {\\n\\t\\tcursor: text;\\n\\t}\\n\\n\\t& textarea[disabled]:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"text\\\"][disabled]:not(.ck-reset_all-excluded *),\\n\\t& input[type=\\\"password\\\"][disabled]:not(.ck-reset_all-excluded *) {\\n\\t\\tcursor: default;\\n\\t}\\n\\n\\t& fieldset:not(.ck-reset_all-excluded *) {\\n\\t\\tpadding: 10px;\\n\\t\\tborder: 2px groove hsl(255, 7%, 88%);\\n\\t}\\n\\n\\t& button:not(.ck-reset_all-excluded *)::-moz-focus-inner {\\n\\t\\t/* See http://stackoverflow.com/questions/5517744/remove-extra-button-spacing-padding-in-firefox */\\n\\t\\tpadding: 0;\\n\\t\\tborder: 0\\n\\t}\\n}\\n\\n/**\\n * Default UI rules for RTL languages.\\n */\\n.ck[dir=\\\"rtl\\\"],\\n.ck[dir=\\\"rtl\\\"] .ck {\\n\\ttext-align: right;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * Default border-radius value.\\n */\\n:root{\\n\\t--ck-border-radius: 2px;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t/**\\n\\t * A visual style of element's inner shadow (i.e. input).\\n\\t */\\n\\t--ck-inner-shadow: 2px 2px 3px var(--ck-color-shadow-inner) inset;\\n\\n\\t/**\\n\\t * A visual style of element's drop shadow (i.e. panel).\\n\\t */\\n\\t--ck-drop-shadow: 0 1px 2px 1px var(--ck-color-shadow-drop);\\n\\n\\t/**\\n\\t * A visual style of element's active shadow (i.e. comment or suggestion).\\n\\t */\\n\\t--ck-drop-shadow-active: 0 3px 6px 1px var(--ck-color-shadow-drop-active);\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-spacing-unit: \\t\\t\\t\\t\\t\\t0.6em;\\n\\t--ck-spacing-large: \\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 1.5);\\n\\t--ck-spacing-standard: \\t\\t\\t\\t\\tvar(--ck-spacing-unit);\\n\\t--ck-spacing-medium: \\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.8);\\n\\t--ck-spacing-small: \\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.5);\\n\\t--ck-spacing-tiny: \\t\\t\\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.3);\\n\\t--ck-spacing-extra-tiny: \\t\\t\\t\\tcalc(var(--ck-spacing-unit) * 0.16);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \":root{--ck-color-resizer:var(--ck-color-focus-border);--ck-color-resizer-tooltip-background:#262626;--ck-color-resizer-tooltip-text:#f2f2f2;--ck-resizer-border-radius:var(--ck-border-radius);--ck-resizer-tooltip-offset:10px;--ck-resizer-tooltip-height:calc(var(--ck-spacing-small)*2 + 10px)}.ck .ck-widget,.ck .ck-widget.ck-widget_with-selection-handle{position:relative}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{position:absolute}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon{display:block}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle,.ck .ck-widget.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle{visibility:visible}.ck .ck-size-view{background:var(--ck-color-resizer-tooltip-background);border:1px solid var(--ck-color-resizer-tooltip-text);border-radius:var(--ck-resizer-border-radius);color:var(--ck-color-resizer-tooltip-text);display:block;font-size:var(--ck-font-size-tiny);height:var(--ck-resizer-tooltip-height);line-height:var(--ck-resizer-tooltip-height);padding:0 var(--ck-spacing-small)}.ck .ck-size-view.ck-orientation-above-center,.ck .ck-size-view.ck-orientation-bottom-left,.ck .ck-size-view.ck-orientation-bottom-right,.ck .ck-size-view.ck-orientation-top-left,.ck .ck-size-view.ck-orientation-top-right{position:absolute}.ck .ck-size-view.ck-orientation-top-left{left:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-top-right{right:var(--ck-resizer-tooltip-offset);top:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-right{bottom:var(--ck-resizer-tooltip-offset);right:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-bottom-left{bottom:var(--ck-resizer-tooltip-offset);left:var(--ck-resizer-tooltip-offset)}.ck .ck-size-view.ck-orientation-above-center{left:50%;top:calc(var(--ck-resizer-tooltip-height)*-1);transform:translate(-50%)}:root{--ck-widget-outline-thickness:3px;--ck-widget-handler-icon-size:16px;--ck-widget-handler-animation-duration:200ms;--ck-widget-handler-animation-curve:ease;--ck-color-widget-blurred-border:#dedede;--ck-color-widget-hover-border:#ffc83d;--ck-color-widget-editable-focus-background:var(--ck-color-base-background);--ck-color-widget-drag-handler-icon-color:var(--ck-color-base-background)}.ck .ck-widget{outline-color:transparent;outline-style:solid;outline-width:var(--ck-widget-outline-thickness);transition:outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_selected,.ck .ck-widget.ck-widget_selected:hover{outline:var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border)}.ck .ck-widget:hover{outline-color:var(--ck-color-widget-hover-border)}.ck .ck-editor__nested-editable{border:1px solid transparent}.ck .ck-editor__nested-editable.ck-editor__nested-editable_focused,.ck .ck-editor__nested-editable:focus{background-color:var(--ck-color-widget-editable-focus-background);border:var(--ck-focus-ring);box-shadow:var(--ck-inner-shadow),0 0;outline:none}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{background-color:transparent;border-radius:var(--ck-border-radius) var(--ck-border-radius) 0 0;box-sizing:border-box;left:calc(0px - var(--ck-widget-outline-thickness));opacity:0;padding:4px;top:0;transform:translateY(-100%);transition:background-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),visibility var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon{color:var(--ck-color-widget-drag-handler-icon-color);height:var(--ck-widget-handler-icon-size);width:var(--ck-widget-handler-icon-size)}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle .ck-icon .ck-icon__selected-indicator{opacity:0;transition:opacity .3s var(--ck-widget-handler-animation-curve)}.ck .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle:hover .ck-icon .ck-icon__selected-indicator{opacity:1}.ck .ck-widget.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle{background-color:var(--ck-color-widget-hover-border);opacity:1}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected:hover>.ck-widget__selection-handle,.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle{background-color:var(--ck-color-focus-border);opacity:1}.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected:hover>.ck-widget__selection-handle .ck-icon .ck-icon__selected-indicator,.ck .ck-widget.ck-widget_with-selection-handle.ck-widget_selected>.ck-widget__selection-handle .ck-icon .ck-icon__selected-indicator{opacity:1}.ck[dir=rtl] .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle{left:auto;right:calc(0px - var(--ck-widget-outline-thickness))}.ck.ck-editor__editable.ck-read-only .ck-widget{transition:none}.ck.ck-editor__editable.ck-read-only .ck-widget:not(.ck-widget_selected){--ck-widget-outline-thickness:0px}.ck.ck-editor__editable.ck-read-only .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle,.ck.ck-editor__editable.ck-read-only .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle:hover{background:var(--ck-color-widget-blurred-border)}.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected:hover{outline-color:var(--ck-color-widget-blurred-border)}.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle:hover>.ck-widget__selection-handle:hover,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle>.ck-widget__selection-handle,.ck.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected.ck-widget_with-selection-handle>.ck-widget__selection-handle:hover{background:var(--ck-color-widget-blurred-border)}.ck.ck-editor__editable blockquote>.ck-widget.ck-widget_with-selection-handle:first-child,.ck.ck-editor__editable>.ck-widget.ck-widget_with-selection-handle:first-child{margin-top:calc(1em + var(--ck-widget-handler-icon-size))}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-widget/theme/widget.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-widget/widget.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_focus.css\",\"webpack://./../ckeditor5-theme-lark/theme/mixins/_shadow.css\"],\"names\":[],\"mappings\":\"AAKA,MACC,+CAAgD,CAChD,6CAAsD,CACtD,uCAAgD,CAEhD,kDAAmD,CACnD,gCAAiC,CACjC,kEACD,CAOA,8DAEC,iBAqBD,CAnBC,4EACC,iBAOD,CALC,qFAGC,aACD,CASD,iLACC,kBACD,CAGD,kBACC,qDAAsD,CAEtD,qDAAsD,CACtD,6CAA8C,CAF9C,0CAA2C,CAI3C,aAAc,CADd,kCAAmC,CAGnC,uCAAwC,CACxC,4CAA6C,CAF7C,iCAsCD,CAlCC,8NAKC,iBACD,CAEA,0CAEC,qCAAsC,CADtC,oCAED,CAEA,2CAEC,sCAAuC,CADvC,oCAED,CAEA,8CACC,uCAAwC,CACxC,sCACD,CAEA,6CACC,uCAAwC,CACxC,qCACD,CAGA,8CAEC,QAAS,CADT,6CAAgD,CAEhD,yBACD,CCjFD,MACC,iCAAkC,CAClC,kCAAmC,CACnC,4CAA6C,CAC7C,wCAAyC,CAEzC,wCAAiD,CACjD,sCAAkD,CAClD,2EAA4E,CAC5E,yEACD,CAEA,eAGC,yBAA0B,CAD1B,mBAAoB,CADpB,gDAAiD,CAGjD,6GAUD,CARC,0EAEC,6EACD,CAEA,qBACC,iDACD,CAGD,gCACC,4BAWD,CAPC,yGAKC,iEAAkE,CCnCnE,2BAA2B,CCF3B,qCAA8B,CDC9B,YDqCA,CAIA,4EAKC,4BAA6B,CAa7B,iEAAkE,CAhBlE,qBAAsB,CAoBtB,mDAAoD,CAhBpD,SAAU,CALV,WAAY,CAsBZ,KAAM,CAFN,2BAA4B,CAT5B,6SAgCD,CAnBC,qFAIC,oDAAqD,CADrD,yCAA0C,CAD1C,wCAWD,CANC,kHACC,SAAU,CAGV,+DACD,CAID,wHACC,SACD,CAID,kFAEC,oDAAqD,CADrD,SAED,CAKC,oMAEC,6CAA8C,CAD9C,SAOD,CAHC,gRACC,SACD,CAOH,qFACC,SAAU,CACV,oDACD,CAGA,gDAEC,eAkBD,CAhBC,yEAOC,iCACD,CAGC,gOAEC,gDACD,CAOD,wIAEC,mDAQD,CALE,ghBAEC,gDACD,CAKH,yKAOC,yDACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-color-resizer: var(--ck-color-focus-border);\\n\\t--ck-color-resizer-tooltip-background: hsl(0, 0%, 15%);\\n\\t--ck-color-resizer-tooltip-text: hsl(0, 0%, 95%);\\n\\n\\t--ck-resizer-border-radius: var(--ck-border-radius);\\n\\t--ck-resizer-tooltip-offset: 10px;\\n\\t--ck-resizer-tooltip-height: calc(var(--ck-spacing-small) * 2 + 10px);\\n}\\n\\n.ck .ck-widget {\\n\\t/* This is neccessary for type around UI to be positioned properly. */\\n\\tposition: relative;\\n}\\n\\n.ck .ck-widget.ck-widget_with-selection-handle {\\n\\t/* Make the widget wrapper a relative positioning container for the drag handle. */\\n\\tposition: relative;\\n\\n\\t& .ck-widget__selection-handle {\\n\\t\\tposition: absolute;\\n\\n\\t\\t& .ck-icon {\\n\\t\\t\\t/* Make sure the icon in not a subject to font-size or line-height to avoid\\n\\t\\t\\tunnecessary spacing around it. */\\n\\t\\t\\tdisplay: block;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Show the selection handle on mouse hover over the widget, but not for nested widgets. */\\n\\t&:hover > .ck-widget__selection-handle {\\n\\t\\tvisibility: visible;\\n\\t}\\n\\n\\t/* Show the selection handle when the widget is selected, but not for nested widgets. */\\n\\t&.ck-widget_selected > .ck-widget__selection-handle {\\n\\t\\tvisibility: visible;\\n\\t}\\n}\\n\\n.ck .ck-size-view {\\n\\tbackground: var(--ck-color-resizer-tooltip-background);\\n\\tcolor: var(--ck-color-resizer-tooltip-text);\\n\\tborder: 1px solid var(--ck-color-resizer-tooltip-text);\\n\\tborder-radius: var(--ck-resizer-border-radius);\\n\\tfont-size: var(--ck-font-size-tiny);\\n\\tdisplay: block;\\n\\tpadding: 0 var(--ck-spacing-small);\\n\\theight: var(--ck-resizer-tooltip-height);\\n\\tline-height: var(--ck-resizer-tooltip-height);\\n\\n\\t&.ck-orientation-top-left,\\n\\t&.ck-orientation-top-right,\\n\\t&.ck-orientation-bottom-right,\\n\\t&.ck-orientation-bottom-left,\\n\\t&.ck-orientation-above-center {\\n\\t\\tposition: absolute;\\n\\t}\\n\\n\\t&.ck-orientation-top-left {\\n\\t\\ttop: var(--ck-resizer-tooltip-offset);\\n\\t\\tleft: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t&.ck-orientation-top-right {\\n\\t\\ttop: var(--ck-resizer-tooltip-offset);\\n\\t\\tright: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t&.ck-orientation-bottom-right {\\n\\t\\tbottom: var(--ck-resizer-tooltip-offset);\\n\\t\\tright: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t&.ck-orientation-bottom-left {\\n\\t\\tbottom: var(--ck-resizer-tooltip-offset);\\n\\t\\tleft: var(--ck-resizer-tooltip-offset);\\n\\t}\\n\\n\\t/* Class applied if the widget is too small to contain the size label */\\n\\t&.ck-orientation-above-center {\\n\\t\\ttop: calc(var(--ck-resizer-tooltip-height) * -1);\\n\\t\\tleft: 50%;\\n\\t\\ttransform: translate(-50%);\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n@import \\\"../mixins/_focus.css\\\";\\n@import \\\"../mixins/_shadow.css\\\";\\n\\n:root {\\n\\t--ck-widget-outline-thickness: 3px;\\n\\t--ck-widget-handler-icon-size: 16px;\\n\\t--ck-widget-handler-animation-duration: 200ms;\\n\\t--ck-widget-handler-animation-curve: ease;\\n\\n\\t--ck-color-widget-blurred-border: hsl(0, 0%, 87%);\\n\\t--ck-color-widget-hover-border: hsl(43, 100%, 62%);\\n\\t--ck-color-widget-editable-focus-background: var(--ck-color-base-background);\\n\\t--ck-color-widget-drag-handler-icon-color: var(--ck-color-base-background);\\n}\\n\\n.ck .ck-widget {\\n\\toutline-width: var(--ck-widget-outline-thickness);\\n\\toutline-style: solid;\\n\\toutline-color: transparent;\\n\\ttransition: outline-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\\n\\n\\t&.ck-widget_selected,\\n\\t&.ck-widget_selected:hover {\\n\\t\\toutline: var(--ck-widget-outline-thickness) solid var(--ck-color-focus-border);\\n\\t}\\n\\n\\t&:hover {\\n\\t\\toutline-color: var(--ck-color-widget-hover-border);\\n\\t}\\n}\\n\\n.ck .ck-editor__nested-editable {\\n\\tborder: 1px solid transparent;\\n\\n\\t/* The :focus style is applied before .ck-editor__nested-editable_focused class is rendered in the view.\\n\\tThese styles show a different border for a blink of an eye, so `:focus` need to have same styles applied. */\\n\\t&.ck-editor__nested-editable_focused,\\n\\t&:focus {\\n\\t\\t@mixin ck-focus-ring;\\n\\t\\t@mixin ck-box-shadow var(--ck-inner-shadow);\\n\\n\\t\\tbackground-color: var(--ck-color-widget-editable-focus-background);\\n\\t}\\n}\\n\\n.ck .ck-widget.ck-widget_with-selection-handle {\\n\\t& .ck-widget__selection-handle {\\n\\t\\tpadding: 4px;\\n\\t\\tbox-sizing: border-box;\\n\\n\\t\\t/* Background and opacity will be animated as the handler shows up or the widget gets selected. */\\n\\t\\tbackground-color: transparent;\\n\\t\\topacity: 0;\\n\\n\\t\\t/* Transition:\\n\\t\\t   * background-color for the .ck-widget_selected state change,\\n\\t\\t   * visibility for hiding the handler,\\n\\t\\t   * opacity for the proper look of the icon when the handler disappears. */\\n\\t\\ttransition:\\n\\t\\t\\tbackground-color var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\\n\\t\\t\\tvisibility var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),\\n\\t\\t\\topacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\\n\\n\\t\\t/* Make only top corners round. */\\n\\t\\tborder-radius: var(--ck-border-radius) var(--ck-border-radius) 0 0;\\n\\n\\t\\t/* Place the drag handler outside the widget wrapper. */\\n\\t\\ttransform: translateY(-100%);\\n\\t\\tleft: calc(0px - var(--ck-widget-outline-thickness));\\n\\t\\ttop: 0;\\n\\n\\t\\t& .ck-icon {\\n\\t\\t\\t/* Make sure the dimensions of the icon are independent of the fon-size of the content. */\\n\\t\\t\\twidth: var(--ck-widget-handler-icon-size);\\n\\t\\t\\theight: var(--ck-widget-handler-icon-size);\\n\\t\\t\\tcolor: var(--ck-color-widget-drag-handler-icon-color);\\n\\n\\t\\t\\t/* The \\\"selected\\\" part of the icon is invisible by default */\\n\\t\\t\\t& .ck-icon__selected-indicator {\\n\\t\\t\\t\\topacity: 0;\\n\\n\\t\\t\\t\\t/* Note: The animation is longer on purpose. Simply feels better. */\\n\\t\\t\\t\\ttransition: opacity 300ms var(--ck-widget-handler-animation-curve);\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/* Advertise using the look of the icon that once clicked the handler, the widget will be selected. */\\n\\t\\t&:hover .ck-icon .ck-icon__selected-indicator {\\n\\t\\t\\topacity: 1;\\n\\t\\t}\\n\\t}\\n\\n\\t/* Show the selection handler on mouse hover over the widget, but not for nested widgets. */\\n\\t&:hover > .ck-widget__selection-handle {\\n\\t\\topacity: 1;\\n\\t\\tbackground-color: var(--ck-color-widget-hover-border);\\n\\t}\\n\\n\\t/* Show the selection handler when the widget is selected, but not for nested widgets. */\\n\\t&.ck-widget_selected,\\n\\t&.ck-widget_selected:hover {\\n\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\topacity: 1;\\n\\t\\t\\tbackground-color: var(--ck-color-focus-border);\\n\\n\\t\\t\\t/* When the widget is selected, notify the user using the proper look of the icon. */\\n\\t\\t\\t& .ck-icon .ck-icon__selected-indicator {\\n\\t\\t\\t\\topacity: 1;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n/* In a RTL environment, align the selection handler to the right side of the widget */\\n/* stylelint-disable-next-line no-descending-specificity */\\n.ck[dir=\\\"rtl\\\"] .ck-widget.ck-widget_with-selection-handle .ck-widget__selection-handle {\\n\\tleft: auto;\\n\\tright: calc(0px - var(--ck-widget-outline-thickness));\\n}\\n\\n/* https://github.com/ckeditor/ckeditor5/issues/6415 */\\n.ck.ck-editor__editable.ck-read-only .ck-widget {\\n\\t/* Prevent the :hover outline from showing up because of the used outline-color transition. */\\n\\ttransition: none;\\n\\n\\t&:not(.ck-widget_selected) {\\n\\t\\t/* Disable visual effects of hover/active widget when CKEditor is in readOnly mode.\\n\\t\\t * See: https://github.com/ckeditor/ckeditor5/issues/1261\\n\\t\\t *\\n\\t\\t * Leave the unit because this custom property is used in calc() by other features.\\n\\t\\t * See: https://github.com/ckeditor/ckeditor5/issues/6775\\n\\t\\t */\\n\\t\\t--ck-widget-outline-thickness: 0px;\\n\\t}\\n\\n\\t&.ck-widget_with-selection-handle {\\n\\t\\t& .ck-widget__selection-handle,\\n\\t\\t& .ck-widget__selection-handle:hover {\\n\\t\\t\\tbackground: var(--ck-color-widget-blurred-border);\\n\\t\\t}\\n\\t}\\n}\\n\\n/* Style the widget when it's selected but the editable it belongs to lost focus. */\\n/* stylelint-disable-next-line no-descending-specificity */\\n.ck.ck-editor__editable.ck-blurred .ck-widget {\\n\\t&.ck-widget_selected,\\n\\t&.ck-widget_selected:hover {\\n\\t\\toutline-color: var(--ck-color-widget-blurred-border);\\n\\n\\t\\t&.ck-widget_with-selection-handle {\\n\\t\\t\\t& > .ck-widget__selection-handle,\\n\\t\\t\\t& > .ck-widget__selection-handle:hover {\\n\\t\\t\\t\\tbackground: var(--ck-color-widget-blurred-border);\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n.ck.ck-editor__editable > .ck-widget.ck-widget_with-selection-handle:first-child,\\n.ck.ck-editor__editable blockquote > .ck-widget.ck-widget_with-selection-handle:first-child {\\n\\t/* Do not crop selection handler if a widget is a first-child in the blockquote or in the root editable.\\n\\tIn fact, anything with overflow: hidden.\\n\\thttps://github.com/ckeditor/ckeditor5-block-quote/issues/28\\n\\thttps://github.com/ckeditor/ckeditor5-widget/issues/44\\n\\thttps://github.com/ckeditor/ckeditor5-widget/issues/66 */\\n\\tmargin-top: calc(1em + var(--ck-widget-handler-icon-size));\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A visual style of focused element's border.\\n */\\n@define-mixin ck-focus-ring {\\n\\t/* Disable native outline. */\\n\\toutline: none;\\n\\tborder: var(--ck-focus-ring)\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n/**\\n * A helper to combine multiple shadows.\\n */\\n@define-mixin ck-box-shadow $shadowA, $shadowB: 0 0 {\\n\\tbox-shadow: $shadowA, $shadowB;\\n}\\n\\n/**\\n * Gives an element a drop shadow so it looks like a floating panel.\\n */\\n@define-mixin ck-drop-shadow {\\n\\t@mixin ck-box-shadow var(--ck-drop-shadow);\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-widget_with-resizer{position:relative}.ck .ck-widget__resizer{display:none;left:0;pointer-events:none;position:absolute;top:0}.ck-focused .ck-widget_with-resizer.ck-widget_selected>.ck-widget__resizer{display:block}.ck .ck-widget__resizer__handle{pointer-events:all;position:absolute}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-right,.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-left{cursor:nwse-resize}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-left,.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-right{cursor:nesw-resize}:root{--ck-resizer-size:10px;--ck-resizer-offset:calc(var(--ck-resizer-size)/-2 - 2px);--ck-resizer-border-width:1px}.ck .ck-widget__resizer{outline:1px solid var(--ck-color-resizer)}.ck .ck-widget__resizer__handle{background:var(--ck-color-focus-border);border:var(--ck-resizer-border-width) solid #fff;border-radius:var(--ck-resizer-border-radius);height:var(--ck-resizer-size);width:var(--ck-resizer-size)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-left{left:var(--ck-resizer-offset);top:var(--ck-resizer-offset)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-top-right{right:var(--ck-resizer-offset);top:var(--ck-resizer-offset)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-right{bottom:var(--ck-resizer-offset);right:var(--ck-resizer-offset)}.ck .ck-widget__resizer__handle.ck-widget__resizer__handle-bottom-left{bottom:var(--ck-resizer-offset);left:var(--ck-resizer-offset)}\", \"\",{\"version\":3,\"sources\":[\"webpack://./../ckeditor5-widget/theme/widgetresize.css\",\"webpack://./../ckeditor5-theme-lark/theme/ckeditor5-widget/widgetresize.css\"],\"names\":[],\"mappings\":\"AAKA,4BAEC,iBACD,CAEA,wBACC,YAAa,CAMb,MAAO,CAFP,mBAAoB,CAHpB,iBAAkB,CAMlB,KACD,CAGC,2EACC,aACD,CAGD,gCAIC,kBAAmB,CAHnB,iBAcD,CATC,4IAEC,kBACD,CAEA,4IAEC,kBACD,CCpCD,MACC,sBAAuB,CAGvB,yDAAiE,CACjE,6BACD,CAEA,wBACC,yCACD,CAEA,gCAGC,uCAAwC,CACxC,gDAA6D,CAC7D,6CAA8C,CAH9C,6BAA8B,CAD9B,4BAyBD,CAnBC,oEAEC,6BAA8B,CAD9B,4BAED,CAEA,qEAEC,8BAA+B,CAD/B,4BAED,CAEA,wEACC,+BAAgC,CAChC,8BACD,CAEA,uEACC,+BAAgC,CAChC,6BACD\",\"sourcesContent\":[\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-widget_with-resizer {\\n\\t/* Make the widget wrapper a relative positioning container for the drag handle. */\\n\\tposition: relative;\\n}\\n\\n.ck .ck-widget__resizer {\\n\\tdisplay: none;\\n\\tposition: absolute;\\n\\n\\t/* The wrapper itself should not interfere with the pointer device, only the handles should. */\\n\\tpointer-events: none;\\n\\n\\tleft: 0;\\n\\ttop: 0;\\n}\\n\\n.ck-focused .ck-widget_with-resizer.ck-widget_selected {\\n\\t& > .ck-widget__resizer {\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\\n.ck .ck-widget__resizer__handle {\\n\\tposition: absolute;\\n\\n\\t/* Resizers are the only UI elements that should interfere with a pointer device. */\\n\\tpointer-events: all;\\n\\n\\t&.ck-widget__resizer__handle-top-left,\\n\\t&.ck-widget__resizer__handle-bottom-right {\\n\\t\\tcursor: nwse-resize;\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-top-right,\\n\\t&.ck-widget__resizer__handle-bottom-left {\\n\\t\\tcursor: nesw-resize;\\n\\t}\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-resizer-size: 10px;\\n\\n\\t/* Set the resizer with a 50% offset. */\\n\\t--ck-resizer-offset: calc( ( var(--ck-resizer-size) / -2 ) - 2px);\\n\\t--ck-resizer-border-width: 1px;\\n}\\n\\n.ck .ck-widget__resizer {\\n\\toutline: 1px solid var(--ck-color-resizer);\\n}\\n\\n.ck .ck-widget__resizer__handle {\\n\\twidth: var(--ck-resizer-size);\\n\\theight: var(--ck-resizer-size);\\n\\tbackground: var(--ck-color-focus-border);\\n\\tborder: var(--ck-resizer-border-width) solid hsl(0, 0%, 100%);\\n\\tborder-radius: var(--ck-resizer-border-radius);\\n\\n\\t&.ck-widget__resizer__handle-top-left {\\n\\t\\ttop: var(--ck-resizer-offset);\\n\\t\\tleft: var(--ck-resizer-offset);\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-top-right {\\n\\t\\ttop: var(--ck-resizer-offset);\\n\\t\\tright: var(--ck-resizer-offset);\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-bottom-right {\\n\\t\\tbottom: var(--ck-resizer-offset);\\n\\t\\tright: var(--ck-resizer-offset);\\n\\t}\\n\\n\\t&.ck-widget__resizer__handle-bottom-left {\\n\\t\\tbottom: var(--ck-resizer-offset);\\n\\t\\tleft: var(--ck-resizer-offset);\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","// Imports\nimport ___CSS_LOADER_API_SOURCEMAP_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/cssWithMappingToString.js\";\nimport ___CSS_LOADER_API_IMPORT___ from \"../../../node_modules/css-loader/dist/runtime/api.js\";\nvar ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(___CSS_LOADER_API_SOURCEMAP_IMPORT___);\n// Module\n___CSS_LOADER_EXPORT___.push([module.id, \".ck .ck-widget .ck-widget__type-around__button{display:block;overflow:hidden;position:absolute;z-index:var(--ck-z-default)}.ck .ck-widget .ck-widget__type-around__button svg{left:50%;position:absolute;top:50%;z-index:calc(var(--ck-z-default) + 2)}.ck .ck-widget .ck-widget__type-around__button.ck-widget__type-around__button_before{left:min(10%,30px);top:calc(var(--ck-widget-outline-thickness)*-.5);transform:translateY(-50%)}.ck .ck-widget .ck-widget__type-around__button.ck-widget__type-around__button_after{bottom:calc(var(--ck-widget-outline-thickness)*-.5);right:min(10%,30px);transform:translateY(50%)}.ck .ck-widget.ck-widget_selected>.ck-widget__type-around>.ck-widget__type-around__button:after,.ck .ck-widget>.ck-widget__type-around>.ck-widget__type-around__button:hover:after{content:\\\"\\\";display:block;left:1px;position:absolute;top:1px;z-index:calc(var(--ck-z-default) + 1)}.ck .ck-widget>.ck-widget__type-around>.ck-widget__type-around__fake-caret{display:none;left:0;position:absolute;right:0}.ck .ck-widget:hover>.ck-widget__type-around>.ck-widget__type-around__fake-caret{left:calc(var(--ck-widget-outline-thickness)*-1);right:calc(var(--ck-widget-outline-thickness)*-1)}.ck .ck-widget.ck-widget_type-around_show-fake-caret_before>.ck-widget__type-around>.ck-widget__type-around__fake-caret{display:block;top:calc(var(--ck-widget-outline-thickness)*-1 - 1px)}.ck .ck-widget.ck-widget_type-around_show-fake-caret_after>.ck-widget__type-around>.ck-widget__type-around__fake-caret{bottom:calc(var(--ck-widget-outline-thickness)*-1 - 1px);display:block}.ck.ck-editor__editable.ck-read-only .ck-widget__type-around,.ck.ck-editor__editable.ck-restricted-editing_mode_restricted .ck-widget__type-around,.ck.ck-editor__editable.ck-widget__type-around_disabled .ck-widget__type-around{display:none}:root{--ck-widget-type-around-button-size:20px;--ck-color-widget-type-around-button-active:var(--ck-color-focus-border);--ck-color-widget-type-around-button-hover:var(--ck-color-widget-hover-border);--ck-color-widget-type-around-button-blurred-editable:var(--ck-color-widget-blurred-border);--ck-color-widget-type-around-button-radar-start-alpha:0;--ck-color-widget-type-around-button-radar-end-alpha:.3;--ck-color-widget-type-around-button-icon:var(--ck-color-base-background)}.ck .ck-widget .ck-widget__type-around__button{background:var(--ck-color-widget-type-around-button);border-radius:100px;height:var(--ck-widget-type-around-button-size);opacity:0;pointer-events:none;transition:opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve),background var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);width:var(--ck-widget-type-around-button-size)}.ck .ck-widget .ck-widget__type-around__button svg{height:8px;margin-top:1px;transform:translate(-50%,-50%);transition:transform .5s ease;width:10px}.ck .ck-widget .ck-widget__type-around__button svg *{stroke-dasharray:10;stroke-dashoffset:0;fill:none;stroke:var(--ck-color-widget-type-around-button-icon);stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round}.ck .ck-widget .ck-widget__type-around__button svg line{stroke-dasharray:7}.ck .ck-widget .ck-widget__type-around__button:hover{animation:ck-widget-type-around-button-sonar 1s ease infinite}.ck .ck-widget .ck-widget__type-around__button:hover svg polyline{animation:ck-widget-type-around-arrow-dash 2s linear}.ck .ck-widget .ck-widget__type-around__button:hover svg line{animation:ck-widget-type-around-arrow-tip-dash 2s linear}.ck .ck-widget.ck-widget_selected>.ck-widget__type-around>.ck-widget__type-around__button,.ck .ck-widget:hover>.ck-widget__type-around>.ck-widget__type-around__button{opacity:1;pointer-events:auto}.ck 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* Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n.ck .ck-widget {\\n\\t/*\\n\\t * Styles of the type around buttons\\n\\t */\\n\\t& .ck-widget__type-around__button {\\n\\t\\tdisplay: block;\\n\\t\\tposition: absolute;\\n\\t\\toverflow: hidden;\\n\\t\\tz-index: var(--ck-z-default);\\n\\n\\t\\t& svg {\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\ttop: 50%;\\n\\t\\t\\tleft: 50%;\\n\\t\\t\\tz-index: calc(var(--ck-z-default) + 2);\\n\\t\\t}\\n\\n\\t\\t&.ck-widget__type-around__button_before {\\n\\t\\t\\t/* Place it in the middle of the outline */\\n\\t\\t\\ttop: calc(-0.5 * var(--ck-widget-outline-thickness));\\n\\t\\t\\tleft: min(10%, 30px);\\n\\n\\t\\t\\ttransform: translateY(-50%);\\n\\t\\t}\\n\\n\\t\\t&.ck-widget__type-around__button_after {\\n\\t\\t\\t/* Place it in the middle of the outline */\\n\\t\\t\\tbottom: calc(-0.5 * var(--ck-widget-outline-thickness));\\n\\t\\t\\tright: min(10%, 30px);\\n\\n\\t\\t\\ttransform: translateY(50%);\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the buttons when:\\n\\t * - the widget is selected,\\n\\t * - or the button is being hovered (regardless of the widget state).\\n\\t */\\n\\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\\n\\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\\n\\t\\t&::after {\\n\\t\\t\\tcontent: \\\"\\\";\\n\\t\\t\\tdisplay: block;\\n\\t\\t\\tposition: absolute;\\n\\t\\t\\ttop: 1px;\\n\\t\\t\\tleft: 1px;\\n\\t\\t\\tz-index: calc(var(--ck-z-default) + 1);\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" which is displayed when the user navigates using the keyboard.\\n\\t */\\n\\t& > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\tdisplay: none;\\n\\t\\tposition: absolute;\\n\\t\\tleft: 0;\\n\\t\\tright: 0;\\n\\t}\\n\\n\\t/*\\n\\t * When the widget is hovered the \\\"fake caret\\\" would normally be narrower than the\\n\\t * extra outline displayed around the widget. Let's extend the \\\"fake caret\\\" to match\\n\\t * the full width of the widget.\\n\\t */\\n\\t&:hover > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\tleft: calc( -1 * var(--ck-widget-outline-thickness) );\\n\\t\\tright: calc( -1 * var(--ck-widget-outline-thickness) );\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" when it should be displayed before the widget (backward keyboard navigation).\\n\\t */\\n\\t&.ck-widget_type-around_show-fake-caret_before > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\ttop: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\\n\\t\\tdisplay: block;\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" when it should be displayed after the widget (forward keyboard navigation).\\n\\t */\\n\\t&.ck-widget_type-around_show-fake-caret_after > .ck-widget__type-around > .ck-widget__type-around__fake-caret {\\n\\t\\tbottom: calc( -1 * var(--ck-widget-outline-thickness) - 1px );\\n\\t\\tdisplay: block;\\n\\t}\\n}\\n\\n/*\\n * Integration with the read-only mode of the editor.\\n */\\n.ck.ck-editor__editable.ck-read-only .ck-widget__type-around {\\n\\tdisplay: none;\\n}\\n\\n/*\\n * Integration with the restricted editing mode (feature) of the editor.\\n */\\n.ck.ck-editor__editable.ck-restricted-editing_mode_restricted .ck-widget__type-around {\\n\\tdisplay: none;\\n}\\n\\n/*\\n * Integration with the #isEnabled property of the WidgetTypeAround plugin.\\n */\\n.ck.ck-editor__editable.ck-widget__type-around_disabled .ck-widget__type-around {\\n\\tdisplay: none;\\n}\\n\",\"/*\\n * Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\\n */\\n\\n:root {\\n\\t--ck-widget-type-around-button-size: 20px;\\n\\t--ck-color-widget-type-around-button-active: var(--ck-color-focus-border);\\n\\t--ck-color-widget-type-around-button-hover: var(--ck-color-widget-hover-border);\\n\\t--ck-color-widget-type-around-button-blurred-editable: var(--ck-color-widget-blurred-border);\\n\\t--ck-color-widget-type-around-button-radar-start-alpha: 0;\\n\\t--ck-color-widget-type-around-button-radar-end-alpha: .3;\\n\\t--ck-color-widget-type-around-button-icon: var(--ck-color-base-background);\\n}\\n\\n@define-mixin ck-widget-type-around-button-visible {\\n\\topacity: 1;\\n\\tpointer-events: auto;\\n}\\n\\n@define-mixin ck-widget-type-around-button-hidden {\\n\\topacity: 0;\\n\\tpointer-events: none;\\n}\\n\\n.ck .ck-widget {\\n\\t/*\\n\\t * Styles of the type around buttons\\n\\t */\\n\\t& .ck-widget__type-around__button {\\n\\t\\twidth: var(--ck-widget-type-around-button-size);\\n\\t\\theight: var(--ck-widget-type-around-button-size);\\n\\t\\tbackground: var(--ck-color-widget-type-around-button);\\n\\t\\tborder-radius: 100px;\\n\\t\\ttransition: opacity var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve), background var(--ck-widget-handler-animation-duration) var(--ck-widget-handler-animation-curve);\\n\\n\\t\\t@mixin ck-widget-type-around-button-hidden;\\n\\n\\t\\t& svg {\\n\\t\\t\\twidth: 10px;\\n\\t\\t\\theight: 8px;\\n\\t\\t\\ttransform: translate(-50%,-50%);\\n\\t\\t\\ttransition: transform .5s ease;\\n\\t\\t\\tmargin-top: 1px;\\n\\n\\t\\t\\t& * {\\n\\t\\t\\t\\tstroke-dasharray: 10;\\n\\t\\t\\t\\tstroke-dashoffset: 0;\\n\\n\\t\\t\\t\\tfill: none;\\n\\t\\t\\t\\tstroke: var(--ck-color-widget-type-around-button-icon);\\n\\t\\t\\t\\tstroke-width: 1.5px;\\n\\t\\t\\t\\tstroke-linecap: round;\\n\\t\\t\\t\\tstroke-linejoin: round;\\n\\t\\t\\t}\\n\\n\\t\\t\\t& line {\\n\\t\\t\\t\\tstroke-dasharray: 7;\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t&:hover {\\n\\t\\t\\t/*\\n\\t\\t\\t * Display the \\\"sonar\\\" around the button when hovered.\\n\\t\\t\\t */\\n\\t\\t\\tanimation: ck-widget-type-around-button-sonar 1s ease infinite;\\n\\n\\t\\t\\t/*\\n\\t\\t\\t * Animate active button's icon.\\n\\t\\t\\t */\\n\\t\\t\\t& svg {\\n\\t\\t\\t\\t& polyline {\\n\\t\\t\\t\\t\\tanimation: ck-widget-type-around-arrow-dash 2s linear;\\n\\t\\t\\t\\t}\\n\\n\\t\\t\\t\\t& line {\\n\\t\\t\\t\\t\\tanimation: ck-widget-type-around-arrow-tip-dash 2s linear;\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Show type around buttons when the widget gets selected or being hovered.\\n\\t */\\n\\t&.ck-widget_selected,\\n\\t&:hover {\\n\\t\\t& > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\t\\t@mixin ck-widget-type-around-button-visible;\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the buttons when the widget is NOT selected (but the buttons are visible\\n\\t * and still can be hovered).\\n\\t */\\n\\t&:not(.ck-widget_selected) > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\tbackground: var(--ck-color-widget-type-around-button-hover);\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the buttons when:\\n\\t * - the widget is selected,\\n\\t * - or the button is being hovered (regardless of the widget state).\\n\\t */\\n\\t&.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button,\\n\\t& > .ck-widget__type-around > .ck-widget__type-around__button:hover {\\n\\t\\tbackground: var(--ck-color-widget-type-around-button-active);\\n\\n\\t\\t&::after {\\n\\t\\t\\twidth: calc(var(--ck-widget-type-around-button-size) - 2px);\\n\\t\\t\\theight: calc(var(--ck-widget-type-around-button-size) - 2px);\\n\\t\\t\\tborder-radius: 100px;\\n\\t\\t\\tbackground: linear-gradient(135deg, hsla(0,0%,100%,0) 0%, hsla(0,0%,100%,.3) 100%);\\n\\t\\t}\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the \\\"before\\\" button when the widget has a selection handle. Because some space\\n\\t * is consumed by the handle, the button must be moved slightly to the right to let it breathe.\\n\\t */\\n\\t&.ck-widget_with-selection-handle > .ck-widget__type-around > .ck-widget__type-around__button_before {\\n\\t\\tmargin-left: 20px;\\n\\t}\\n\\n\\t/*\\n\\t * Styles for the horizontal \\\"fake caret\\\" which is displayed when the user navigates using the keyboard.\\n\\t */\\n\\t& .ck-widget__type-around__fake-caret {\\n\\t\\tpointer-events: none;\\n\\t\\theight: 1px;\\n\\t\\tanimation: ck-widget-type-around-fake-caret-pulse linear 1s infinite normal forwards;\\n\\n\\t\\t/*\\n\\t\\t * The semi-transparent-outline+background combo improves the contrast\\n\\t\\t * when the background underneath the fake caret is dark.\\n\\t\\t */\\n\\t\\toutline: solid 1px hsla(0, 0%, 100%, .5);\\n\\t\\tbackground: var(--ck-color-base-text);\\n\\t}\\n\\n\\t/*\\n\\t * Styles of the widget when the \\\"fake caret\\\" is blinking (e.g. upon keyboard navigation).\\n\\t * Despite the widget being physically selected in the model, its outline should disappear.\\n\\t */\\n\\t&.ck-widget_selected {\\n\\t\\t&.ck-widget_type-around_show-fake-caret_before,\\n\\t\\t&.ck-widget_type-around_show-fake-caret_after {\\n\\t\\t\\toutline-color: transparent;\\n\\t\\t}\\n\\t}\\n\\n\\t&.ck-widget_type-around_show-fake-caret_before,\\n\\t&.ck-widget_type-around_show-fake-caret_after {\\n\\t\\t/*\\n\\t\\t * When the \\\"fake caret\\\" is visible we simulate that the widget is not selected\\n\\t\\t * (despite being physically selected), so the outline color should be for the\\n\\t\\t * unselected widget.\\n\\t\\t */\\n\\t\\t&.ck-widget_selected:hover {\\n\\t\\t\\toutline-color: var(--ck-color-widget-hover-border);\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * Styles of the type around buttons when the \\\"fake caret\\\" is blinking (e.g. upon keyboard navigation).\\n\\t\\t * In this state, the type around buttons would collide with the fake carets so they should disappear.\\n\\t\\t */\\n\\t\\t& > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\t\\t@mixin ck-widget-type-around-button-hidden;\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * Fake horizontal caret integration with the selection handle. When the caret is visible, simply\\n\\t\\t * hide the handle because it intersects with the caret (and does not make much sense anyway).\\n\\t\\t */\\n\\t\\t&.ck-widget_with-selection-handle {\\n\\t\\t\\t&.ck-widget_selected,\\n\\t\\t\\t&.ck-widget_selected:hover {\\n\\t\\t\\t\\t& > .ck-widget__selection-handle {\\n\\t\\t\\t\\t\\topacity: 0\\n\\t\\t\\t\\t}\\n\\t\\t\\t}\\n\\t\\t}\\n\\n\\t\\t/*\\n\\t\\t * Fake horizontal caret integration with the resize UI. When the caret is visible, simply\\n\\t\\t * hide the resize UI because it creates too much noise. It can be visible when the user\\n\\t\\t * hovers the widget, though.\\n\\t\\t */\\n\\t\\t&.ck-widget_selected.ck-widget_with-resizer > .ck-widget__resizer {\\n\\t\\t\\topacity: 0\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Styles for the \\\"before\\\" button when the widget has a selection handle in an RTL environment.\\n * The selection handler is aligned to the right side of the widget so there is no need to create\\n * additional space for it next to the \\\"before\\\" button.\\n */\\n.ck[dir=\\\"rtl\\\"] .ck-widget.ck-widget_with-selection-handle .ck-widget__type-around > .ck-widget__type-around__button_before {\\n\\tmargin-left: 0;\\n\\tmargin-right: 20px;\\n}\\n\\n/*\\n * Hide type around buttons when the widget is selected as a child of a selected\\n * nested editable (e.g. mulit-cell table selection).\\n *\\n * See https://github.com/ckeditor/ckeditor5/issues/7263.\\n */\\n.ck-editor__nested-editable.ck-editor__editable_selected {\\n\\t& .ck-widget {\\n\\t\\t&.ck-widget_selected,\\n\\t\\t&:hover {\\n\\t\\t\\t& > .ck-widget__type-around > .ck-widget__type-around__button {\\n\\t\\t\\t\\t@mixin ck-widget-type-around-button-hidden;\\n\\t\\t\\t}\\n\\t\\t}\\n\\t}\\n}\\n\\n/*\\n * Styles for the buttons when the widget is selected but the user clicked outside of the editor (blurred the editor).\\n */\\n.ck-editor__editable.ck-blurred .ck-widget.ck-widget_selected > .ck-widget__type-around > .ck-widget__type-around__button:not(:hover) {\\n\\tbackground: var(--ck-color-widget-type-around-button-blurred-editable);\\n\\n\\t& svg * {\\n\\t\\tstroke: hsl(0,0%,60%);\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-arrow-dash {\\n\\t0% {\\n\\t\\tstroke-dashoffset: 10;\\n\\t}\\n\\t20%, 100% {\\n\\t\\tstroke-dashoffset: 0;\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-arrow-tip-dash {\\n\\t0%, 20% {\\n\\t\\tstroke-dashoffset: 7;\\n\\t}\\n\\t40%, 100% {\\n\\t\\tstroke-dashoffset: 0;\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-button-sonar {\\n\\t0% {\\n\\t\\tbox-shadow: 0 0 0 0 hsla(var(--ck-color-focus-border-coordinates), var(--ck-color-widget-type-around-button-radar-start-alpha));\\n\\t}\\n\\t50% {\\n\\t\\tbox-shadow: 0 0 0 5px hsla(var(--ck-color-focus-border-coordinates), var(--ck-color-widget-type-around-button-radar-end-alpha));\\n\\t}\\n\\t100% {\\n\\t\\tbox-shadow: 0 0 0 5px hsla(var(--ck-color-focus-border-coordinates), var(--ck-color-widget-type-around-button-radar-start-alpha));\\n\\t}\\n}\\n\\n@keyframes ck-widget-type-around-fake-caret-pulse {\\n\\t0% {\\n\\t\\topacity: 1;\\n\\t}\\n\\t49% {\\n\\t\\topacity: 1;\\n\\t}\\n\\t50% {\\n\\t\\topacity: 0;\\n\\t}\\n\\t99% {\\n\\t\\topacity: 0;\\n\\t}\\n\\t100% {\\n\\t\\topacity: 1;\\n\\t}\\n}\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","\"use strict\";\n\n/*\n  MIT License http://www.opensource.org/licenses/mit-license.php\n  Author Tobias Koppers @sokra\n*/\n// css base code, injected by the css-loader\n// eslint-disable-next-line func-names\nmodule.exports = function (cssWithMappingToString) {\n  var list = []; // return the list of modules as css string\n\n  list.toString = function toString() {\n    return this.map(function (item) {\n      var content = cssWithMappingToString(item);\n\n      if (item[2]) {\n        return \"@media \".concat(item[2], \" {\").concat(content, \"}\");\n      }\n\n      return content;\n    }).join(\"\");\n  }; // import a list of modules into the list\n  // eslint-disable-next-line func-names\n\n\n  list.i = function (modules, mediaQuery, dedupe) {\n    if (typeof modules === \"string\") {\n      // eslint-disable-next-line no-param-reassign\n      modules = [[null, modules, \"\"]];\n    }\n\n    var alreadyImportedModules = {};\n\n    if (dedupe) {\n      for (var i = 0; i < this.length; i++) {\n        // eslint-disable-next-line prefer-destructuring\n        var id = this[i][0];\n\n        if (id != null) {\n          alreadyImportedModules[id] = true;\n        }\n      }\n    }\n\n    for (var _i = 0; _i < modules.length; _i++) {\n      var item = [].concat(modules[_i]);\n\n      if (dedupe && alreadyImportedModules[item[0]]) {\n        // eslint-disable-next-line no-continue\n        continue;\n      }\n\n      if (mediaQuery) {\n        if (!item[2]) {\n          item[2] = mediaQuery;\n        } else {\n          item[2] = \"\".concat(mediaQuery, \" and \").concat(item[2]);\n        }\n      }\n\n      list.push(item);\n    }\n  };\n\n  return list;\n};","\"use strict\";\n\nfunction _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction _iterableToArrayLimit(arr, i) { var _i = arr && (typeof Symbol !== \"undefined\" && arr[Symbol.iterator] || arr[\"@@iterator\"]); if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nmodule.exports = function cssWithMappingToString(item) {\n  var _item = _slicedToArray(item, 4),\n      content = _item[1],\n      cssMapping = _item[3];\n\n  if (!cssMapping) {\n    return content;\n  }\n\n  if (typeof btoa === \"function\") {\n    // eslint-disable-next-line no-undef\n    var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(cssMapping))));\n    var data = \"sourceMappingURL=data:application/json;charset=utf-8;base64,\".concat(base64);\n    var sourceMapping = \"/*# \".concat(data, \" */\");\n    var sourceURLs = cssMapping.sources.map(function (source) {\n      return \"/*# sourceURL=\".concat(cssMapping.sourceRoot || \"\").concat(source, \" */\");\n    });\n    return [content].concat(sourceURLs).concat([sourceMapping]).join(\"\\n\");\n  }\n\n  return [content].join(\"\\n\");\n};","\"use strict\";\n\nvar isOldIE = function isOldIE() {\n  var memo;\n  return function memorize() {\n    if (typeof memo === 'undefined') {\n      // Test for IE <= 9 as proposed by Browserhacks\n      // @see http://browserhacks.com/#hack-e71d8692f65334173fee715c222cb805\n      // Tests for existence of standard globals is to allow style-loader\n      // to operate correctly into non-standard environments\n      // @see https://github.com/webpack-contrib/style-loader/issues/177\n      memo = Boolean(window && document && document.all && !window.atob);\n    }\n\n    return memo;\n  };\n}();\n\nvar getTarget = function getTarget() {\n  var memo = {};\n  return function memorize(target) {\n    if (typeof memo[target] === 'undefined') {\n      var styleTarget = document.querySelector(target); // Special case to return head of iframe instead of iframe itself\n\n      if (window.HTMLIFrameElement && styleTarget instanceof window.HTMLIFrameElement) {\n        try {\n          // This will throw an exception if access to iframe is blocked\n          // due to cross-origin restrictions\n          styleTarget = styleTarget.contentDocument.head;\n        } catch (e) {\n          // istanbul ignore next\n          styleTarget = null;\n        }\n      }\n\n      memo[target] = styleTarget;\n    }\n\n    return memo[target];\n  };\n}();\n\nvar stylesInDom = [];\n\nfunction getIndexByIdentifier(identifier) {\n  var result = -1;\n\n  for (var i = 0; i < stylesInDom.length; i++) {\n    if (stylesInDom[i].identifier === identifier) {\n      result = i;\n      break;\n    }\n  }\n\n  return result;\n}\n\nfunction modulesToDom(list, options) {\n  var idCountMap = {};\n  var identifiers = [];\n\n  for (var i = 0; i < list.length; i++) {\n    var item = list[i];\n    var id = options.base ? item[0] + options.base : item[0];\n    var count = idCountMap[id] || 0;\n    var identifier = \"\".concat(id, \" \").concat(count);\n    idCountMap[id] = count + 1;\n    var index = getIndexByIdentifier(identifier);\n    var obj = {\n      css: item[1],\n      media: item[2],\n      sourceMap: item[3]\n    };\n\n    if (index !== -1) {\n      stylesInDom[index].references++;\n      stylesInDom[index].updater(obj);\n    } else {\n      stylesInDom.push({\n        identifier: identifier,\n        updater: addStyle(obj, options),\n        references: 1\n      });\n    }\n\n    identifiers.push(identifier);\n  }\n\n  return identifiers;\n}\n\nfunction insertStyleElement(options) {\n  var style = document.createElement('style');\n  var attributes = options.attributes || {};\n\n  if (typeof attributes.nonce === 'undefined') {\n    var nonce = typeof __webpack_nonce__ !== 'undefined' ? __webpack_nonce__ : null;\n\n    if (nonce) {\n      attributes.nonce = nonce;\n    }\n  }\n\n  Object.keys(attributes).forEach(function (key) {\n    style.setAttribute(key, attributes[key]);\n  });\n\n  if (typeof options.insert === 'function') {\n    options.insert(style);\n  } else {\n    var target = getTarget(options.insert || 'head');\n\n    if (!target) {\n      throw new Error(\"Couldn't find a style target. This probably means that the value for the 'insert' parameter is invalid.\");\n    }\n\n    target.appendChild(style);\n  }\n\n  return style;\n}\n\nfunction removeStyleElement(style) {\n  // istanbul ignore if\n  if (style.parentNode === null) {\n    return false;\n  }\n\n  style.parentNode.removeChild(style);\n}\n/* istanbul ignore next  */\n\n\nvar replaceText = function replaceText() {\n  var textStore = [];\n  return function replace(index, replacement) {\n    textStore[index] = replacement;\n    return textStore.filter(Boolean).join('\\n');\n  };\n}();\n\nfunction applyToSingletonTag(style, index, remove, obj) {\n  var css = remove ? '' : obj.media ? \"@media \".concat(obj.media, \" {\").concat(obj.css, \"}\") : obj.css; // For old IE\n\n  /* istanbul ignore if  */\n\n  if (style.styleSheet) {\n    style.styleSheet.cssText = replaceText(index, css);\n  } else {\n    var cssNode = document.createTextNode(css);\n    var childNodes = style.childNodes;\n\n    if (childNodes[index]) {\n      style.removeChild(childNodes[index]);\n    }\n\n    if (childNodes.length) {\n      style.insertBefore(cssNode, childNodes[index]);\n    } else {\n      style.appendChild(cssNode);\n    }\n  }\n}\n\nfunction applyToTag(style, options, obj) {\n  var css = obj.css;\n  var media = obj.media;\n  var sourceMap = obj.sourceMap;\n\n  if (media) {\n    style.setAttribute('media', media);\n  } else {\n    style.removeAttribute('media');\n  }\n\n  if (sourceMap && typeof btoa !== 'undefined') {\n    css += \"\\n/*# sourceMappingURL=data:application/json;base64,\".concat(btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))), \" */\");\n  } // For old IE\n\n  /* istanbul ignore if  */\n\n\n  if (style.styleSheet) {\n    style.styleSheet.cssText = css;\n  } else {\n    while (style.firstChild) {\n      style.removeChild(style.firstChild);\n    }\n\n    style.appendChild(document.createTextNode(css));\n  }\n}\n\nvar singleton = null;\nvar singletonCounter = 0;\n\nfunction addStyle(obj, options) {\n  var style;\n  var update;\n  var remove;\n\n  if (options.singleton) {\n    var styleIndex = singletonCounter++;\n    style = singleton || (singleton = insertStyleElement(options));\n    update = applyToSingletonTag.bind(null, style, styleIndex, false);\n    remove = applyToSingletonTag.bind(null, style, styleIndex, true);\n  } else {\n    style = insertStyleElement(options);\n    update = applyToTag.bind(null, style, options);\n\n    remove = function remove() {\n      removeStyleElement(style);\n    };\n  }\n\n  update(obj);\n  return function updateStyle(newObj) {\n    if (newObj) {\n      if (newObj.css === obj.css && newObj.media === obj.media && newObj.sourceMap === obj.sourceMap) {\n        return;\n      }\n\n      update(obj = newObj);\n    } else {\n      remove();\n    }\n  };\n}\n\nmodule.exports = function (list, options) {\n  options = options || {}; // Force single-tag solution on IE6-9, which has a hard limit on the # of <style>\n  // tags it will allow on a page\n\n  if (!options.singleton && typeof options.singleton !== 'boolean') {\n    options.singleton = isOldIE();\n  }\n\n  list = list || [];\n  var lastIdentifiers = modulesToDom(list, options);\n  return function update(newList) {\n    newList = newList || [];\n\n    if (Object.prototype.toString.call(newList) !== '[object Array]') {\n      return;\n    }\n\n    for (var i = 0; i < lastIdentifiers.length; i++) {\n      var identifier = lastIdentifiers[i];\n      var index = getIndexByIdentifier(identifier);\n      stylesInDom[index].references--;\n    }\n\n    var newLastIdentifiers = modulesToDom(newList, options);\n\n    for (var _i = 0; _i < lastIdentifiers.length; _i++) {\n      var _identifier = lastIdentifiers[_i];\n\n      var _index = getIndexByIdentifier(_identifier);\n\n      if (stylesInDom[_index].references === 0) {\n        stylesInDom[_index].updater();\n\n        stylesInDom.splice(_index, 1);\n      }\n    }\n\n    lastIdentifiers = newLastIdentifiers;\n  };\n};","// The module cache\nvar __webpack_module_cache__ = {};\n\n// The require function\nfunction __webpack_require__(moduleId) {\n\t// Check if module is in cache\n\tvar cachedModule = __webpack_module_cache__[moduleId];\n\tif (cachedModule !== undefined) {\n\t\treturn cachedModule.exports;\n\t}\n\t// Create a new module (and put it into the cache)\n\tvar module = __webpack_module_cache__[moduleId] = {\n\t\tid: moduleId,\n\t\t// no module.loaded needed\n\t\texports: {}\n\t};\n\n\t// Execute the module function\n\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n\n\t// Return the exports of the module\n\treturn module.exports;\n}\n\n","// getDefaultExport function for compatibility with non-harmony modules\n__webpack_require__.n = (module) => {\n\tvar getter = module && module.__esModule ?\n\t\t() => (module['default']) :\n\t\t() => (module);\n\t__webpack_require__.d(getter, { a: getter });\n\treturn getter;\n};","// define getter functions for harmony exports\n__webpack_require__.d = (exports, definition) => {\n\tfor(var key in definition) {\n\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n\t\t}\n\t}\n};","__webpack_require__.g = (function() {\n\tif (typeof globalThis === 'object') return globalThis;\n\ttry {\n\t\treturn this || new Function('return this')();\n\t} catch (e) {\n\t\tif (typeof window === 'object') return window;\n\t}\n})();","__webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))","__webpack_require__.nc = undefined;","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals navigator:false */\n\n/**\n * @module utils/env\n */\n\n/**\n * Safely returns `userAgent` from browser's navigator API in a lower case.\n * If navigator API is not available it will return an empty string.\n */\nexport function getUserAgent( ): string {\n\t// In some environments navigator API might not be available.\n\ttry {\n\t\treturn navigator.userAgent.toLowerCase();\n\t} catch ( e ) {\n\t\treturn '';\n\t}\n}\n\nconst userAgent = getUserAgent();\n\n// This interface exists to make our API pages more readable.\n/**\n * A namespace containing environment and browser information.\n */\nexport interface EnvType {\n\n\t/**\n\t * Indicates that the application is running on Macintosh.\n\t */\n\treadonly isMac: boolean;\n\n\t/**\n\t * Indicates that the application is running on Windows.\n\t */\n\treadonly isWindows: boolean;\n\n\t/**\n\t * Indicates that the application is running in Firefox (Gecko).\n\t */\n\treadonly isGecko: boolean;\n\n\t/**\n\t * Indicates that the application is running in Safari.\n\t */\n\treadonly isSafari: boolean;\n\n\t/**\n\t * Indicates the the application is running in iOS.\n\t */\n\treadonly isiOS: boolean;\n\n\t/**\n\t * Indicates that the application is running on Android mobile device.\n\t */\n\treadonly isAndroid: boolean;\n\n\t/**\n\t * Indicates that the application is running in a browser using the Blink engine.\n\t */\n\treadonly isBlink: boolean;\n\n\t/**\n\t * Environment features information.\n\t */\n\treadonly features: EnvFeaturesType;\n}\n\nexport interface EnvFeaturesType {\n\n\t/**\n\t * Indicates that the environment supports ES2018 Unicode property escapes — like `\\p{P}` or `\\p{L}`.\n\t * More information about unicode properties might be found\n\t * [in Unicode Standard Annex #44](https://www.unicode.org/reports/tr44/#GC_Values_Table).\n\t */\n\treadonly isRegExpUnicodePropertySupported: boolean;\n}\n\n/**\n * A namespace containing environment and browser information.\n */\nconst env: EnvType = {\n\tisMac: isMac( userAgent ),\n\n\tisWindows: isWindows( userAgent ),\n\n\tisGecko: isGecko( userAgent ),\n\n\tisSafari: isSafari( userAgent ),\n\n\tisiOS: isiOS( userAgent ),\n\n\tisAndroid: isAndroid( userAgent ),\n\n\tisBlink: isBlink( userAgent ),\n\n\tfeatures: {\n\t\tisRegExpUnicodePropertySupported: isRegExpUnicodePropertySupported()\n\t}\n};\n\nexport default env;\n\n/**\n * Checks if User Agent represented by the string is running on Macintosh.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is running on Macintosh or not.\n */\nexport function isMac( userAgent: string ): boolean {\n\treturn userAgent.indexOf( 'macintosh' ) > -1;\n}\n\n/**\n * Checks if User Agent represented by the string is running on Windows.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is running on Windows or not.\n */\nexport function isWindows( userAgent: string ): boolean {\n\treturn userAgent.indexOf( 'windows' ) > -1;\n}\n\n/**\n * Checks if User Agent represented by the string is Firefox (Gecko).\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Firefox or not.\n */\nexport function isGecko( userAgent: string ): boolean {\n\treturn !!userAgent.match( /gecko\\/\\d+/ );\n}\n\n/**\n * Checks if User Agent represented by the string is Safari.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Safari or not.\n */\nexport function isSafari( userAgent: string ): boolean {\n\treturn userAgent.indexOf( ' applewebkit/' ) > -1 && userAgent.indexOf( 'chrome' ) === -1;\n}\n\n/**\n * Checks if User Agent represented by the string is running in iOS.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is running in iOS or not.\n */\nexport function isiOS( userAgent: string ): boolean {\n\t// \"Request mobile site\" || \"Request desktop site\".\n\treturn !!userAgent.match( /iphone|ipad/i ) || ( isMac( userAgent ) && navigator.maxTouchPoints > 0 );\n}\n\n/**\n * Checks if User Agent represented by the string is Android mobile device.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Safari or not.\n */\nexport function isAndroid( userAgent: string ): boolean {\n\treturn userAgent.indexOf( 'android' ) > -1;\n}\n\n/**\n * Checks if User Agent represented by the string is Blink engine.\n *\n * @param userAgent **Lowercase** `navigator.userAgent` string.\n * @returns Whether User Agent is Blink engine or not.\n */\nexport function isBlink( userAgent: string ): boolean {\n\t// The Edge browser before switching to the Blink engine used to report itself as Chrome (and \"Edge/\")\n\t// but after switching to the Blink it replaced \"Edge/\" with \"Edg/\".\n\treturn userAgent.indexOf( 'chrome/' ) > -1 && userAgent.indexOf( 'edge/' ) < 0;\n}\n\n/**\n * Checks if the current environment supports ES2018 Unicode properties like `\\p{P}` or `\\p{L}`.\n * More information about unicode properties might be found\n * [in Unicode Standard Annex #44](https://www.unicode.org/reports/tr44/#GC_Values_Table).\n */\nexport function isRegExpUnicodePropertySupported(): boolean {\n\tlet isSupported = false;\n\n\t// Feature detection for Unicode properties. Added in ES2018. Currently Firefox does not support it.\n\t// See https://github.com/ckeditor/ckeditor5-mention/issues/44#issuecomment-487002174.\n\n\ttry {\n\t\t// Usage of regular expression literal cause error during build (ckeditor/ckeditor5-dev#534).\n\t\tisSupported = 'ć'.search( new RegExp( '[\\\\p{L}]', 'u' ) ) === 0;\n\t} catch ( error ) {\n\t\t// Firefox throws a SyntaxError when the group is unsupported.\n\t}\n\n\treturn isSupported;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { DiffResult } from './diff';\nimport type { Change } from './difftochanges';\n\n/**\n * @module utils/fastdiff\n */\n\n/**\n * Finds positions of the first and last change in the given string/array and generates a set of changes:\n *\n * ```ts\n * fastDiff( '12a', '12xyza' );\n * // [ { index: 2, type: 'insert', values: [ 'x', 'y', 'z' ] } ]\n *\n * fastDiff( '12a', '12aa' );\n * // [ { index: 3, type: 'insert', values: [ 'a' ] } ]\n *\n * fastDiff( '12xyza', '12a' );\n * // [ { index: 2, type: 'delete', howMany: 3 } ]\n *\n * fastDiff( [ '1', '2', 'a', 'a' ], [ '1', '2', 'a' ] );\n * // [ { index: 3, type: 'delete', howMany: 1 } ]\n *\n * fastDiff( [ '1', '2', 'a', 'b', 'c', '3' ], [ '2', 'a', 'b' ] );\n * // [ { index: 0, type: 'insert', values: [ '2', 'a', 'b' ] }, { index: 3, type: 'delete', howMany: 6 } ]\n * ```\n *\n * Passed arrays can contain any type of data, however to compare them correctly custom comparator function\n * should be passed as a third parameter:\n *\n * ```ts\n * fastDiff( [ { value: 1 }, { value: 2 } ], [ { value: 1 }, { value: 3 } ], ( a, b ) => {\n * \treturn a.value === b.value;\n * } );\n * // [ { index: 1, type: 'insert', values: [ { value: 3 } ] }, { index: 2, type: 'delete', howMany: 1 } ]\n * ```\n *\n * The resulted set of changes can be applied to the input in order to transform it into the output, for example:\n *\n * ```ts\n * let input = '12abc3';\n * const output = '2ab';\n * const changes = fastDiff( input, output );\n *\n * changes.forEach( change => {\n * \tif ( change.type == 'insert' ) {\n * \t\tinput = input.substring( 0, change.index ) + change.values.join( '' ) + input.substring( change.index );\n * \t} else if ( change.type == 'delete' ) {\n * \t\tinput = input.substring( 0, change.index ) + input.substring( change.index + change.howMany );\n * \t}\n * } );\n *\n * // input equals output now\n * ```\n *\n * or in case of arrays:\n *\n * ```ts\n * let input = [ '1', '2', 'a', 'b', 'c', '3' ];\n * const output = [ '2', 'a', 'b' ];\n * const changes = fastDiff( input, output );\n *\n * changes.forEach( change => {\n * \tif ( change.type == 'insert' ) {\n * \t\tinput = input.slice( 0, change.index ).concat( change.values, input.slice( change.index ) );\n * \t} else if ( change.type == 'delete' ) {\n * \t\tinput = input.slice( 0, change.index ).concat( input.slice( change.index + change.howMany ) );\n * \t}\n * } );\n *\n * // input equals output now\n * ```\n *\n * By passing `true` as the fourth parameter (`atomicChanges`) the output of this function will become compatible with\n * the {@link module:utils/diff~diff `diff()`} function:\n *\n * ```ts\n * fastDiff( '12a', '12xyza', undefined, true );\n * // [ 'equal', 'equal', 'insert', 'insert', 'insert', 'equal' ]\n * ```\n *\n * The default output format of this function is compatible with the output format of\n * {@link module:utils/difftochanges~diffToChanges `diffToChanges()`}. The `diffToChanges()` input format is, in turn,\n * compatible with the output of {@link module:utils/diff~diff `diff()`}:\n *\n * ```ts\n * const a = '1234';\n * const b = '12xyz34';\n *\n * // Both calls will return the same results (grouped changes format).\n * fastDiff( a, b );\n * diffToChanges( diff( a, b ) );\n *\n * // Again, both calls will return the same results (atomic changes format).\n * fastDiff( a, b, undefined, true );\n * diff( a, b );\n * ```\n *\n * @typeParam T The type of array elements.\n * @typeParam AtomicChanges The type of `atomicChanges` parameter (selects the result type).\n * @param a Input array or string.\n * @param b Input array or string.\n * @param cmp Optional function used to compare array values, by default `===` (strict equal operator) is used.\n * @param atomicChanges Whether an array of `inset|delete|equal` operations should\n * be returned instead of changes set. This makes this function compatible with {@link module:utils/diff~diff `diff()`}.\n * Defaults to `false`.\n * @returns Array of changes. The elements are either {@link module:utils/diff~DiffResult} or {@link module:utils/difftochanges~Change},\n * depending on `atomicChanges` parameter.\n */\nexport default function fastDiff<T, AtomicChanges extends boolean = false>(\n\ta: ArrayLike<T>,\n\tb: ArrayLike<T>,\n\tcmp?: ( a: T, b: T ) => boolean,\n\tatomicChanges?: AtomicChanges\n): Array<AtomicChanges extends true ? DiffResult : Change<T>> {\n\t// Set the comparator function.\n\tcmp = cmp || function( a, b ) {\n\t\treturn a === b;\n\t};\n\n\t// Convert the string (or any array-like object - eg. NodeList) to an array by using the slice() method because,\n\t// unlike Array.from(), it returns array of UTF-16 code units instead of the code points of a string.\n\t// One code point might be a surrogate pair of two code units. All text offsets are expected to be in code units.\n\t// See ckeditor/ckeditor5#3147.\n\t//\n\t// We need to make sure here that fastDiff() works identical to diff().\n\tconst arrayA: Array<T> = Array.isArray( a ) ? a : Array.prototype.slice.call( a );\n\tconst arrayB: Array<T> = Array.isArray( b ) ? b : Array.prototype.slice.call( b );\n\n\t// Find first and last change.\n\tconst changeIndexes = findChangeBoundaryIndexes( arrayA, arrayB, cmp );\n\n\t// Transform into changes array.\n\tconst result = atomicChanges ?\n\t\tchangeIndexesToAtomicChanges( changeIndexes, arrayB.length ) :\n\t\tchangeIndexesToChanges( arrayB, changeIndexes );\n\n\treturn result as any;\n}\n\n/**\n * Finds position of the first and last change in the given arrays. For example:\n *\n * ```ts\n * const indexes = findChangeBoundaryIndexes( [ '1', '2', '3', '4' ], [ '1', '3', '4', '2', '4' ] );\n * console.log( indexes ); // { firstIndex: 1, lastIndexOld: 3, lastIndexNew: 4 }\n * ```\n *\n * The above indexes means that in the first array the modified part is `1[23]4` and in the second array it is `1[342]4`.\n * Based on such indexes, array with `insert`/`delete` operations which allows transforming first value into the second one\n * can be generated.\n */\nfunction findChangeBoundaryIndexes<T>( arr1: ReadonlyArray<T>, arr2: ReadonlyArray<T>, cmp: ( a: T, b: T ) => boolean ): ChangeIndexes {\n\t// Find the first difference between passed values.\n\tconst firstIndex = findFirstDifferenceIndex( arr1, arr2, cmp );\n\n\t// If arrays are equal return -1 indexes object.\n\tif ( firstIndex === -1 ) {\n\t\treturn { firstIndex: -1, lastIndexOld: -1, lastIndexNew: -1 };\n\t}\n\n\t// Remove the common part of each value and reverse them to make it simpler to find the last difference between them.\n\tconst oldArrayReversed = cutAndReverse( arr1, firstIndex );\n\tconst newArrayReversed = cutAndReverse( arr2, firstIndex );\n\n\t// Find the first difference between reversed values.\n\t// It should be treated as \"how many elements from the end the last difference occurred\".\n\t//\n\t// For example:\n\t//\n\t// \t\t\t\tinitial\t->\tafter cut\t-> reversed:\n\t// oldValue:\t'321ba'\t->\t'21ba'\t\t-> 'ab12'\n\t// newValue:\t'31xba'\t->\t'1xba'\t\t-> 'abx1'\n\t// lastIndex:\t\t\t\t\t\t\t-> 2\n\t//\n\t// So the last change occurred two characters from the end of the arrays.\n\tconst lastIndex = findFirstDifferenceIndex( oldArrayReversed, newArrayReversed, cmp );\n\n\t// Use `lastIndex` to calculate proper offset, starting from the beginning (`lastIndex` kind of starts from the end).\n\tconst lastIndexOld = arr1.length - lastIndex;\n\tconst lastIndexNew = arr2.length - lastIndex;\n\n\treturn { firstIndex, lastIndexOld, lastIndexNew };\n}\n\n/**\n * Returns a first index on which given arrays differ. If both arrays are the same, -1 is returned.\n */\nfunction findFirstDifferenceIndex<T>( arr1: ReadonlyArray<T>, arr2: ReadonlyArray<T>, cmp: ( a: T, b: T ) => boolean ): number {\n\tfor ( let i = 0; i < Math.max( arr1.length, arr2.length ); i++ ) {\n\t\tif ( arr1[ i ] === undefined || arr2[ i ] === undefined || !cmp( arr1[ i ], arr2[ i ] ) ) {\n\t\t\treturn i;\n\t\t}\n\t}\n\n\treturn -1; // Return -1 if arrays are equal.\n}\n\n/**\n * Returns a copy of the given array with `howMany` elements removed starting from the beginning and in reversed order.\n *\n * @param arr Array to be processed.\n * @param howMany How many elements from array beginning to remove.\n * @returns Shortened and reversed array.\n */\nfunction cutAndReverse<T>( arr: ReadonlyArray<T>, howMany: number ): Array<T> {\n\treturn arr.slice( howMany ).reverse();\n}\n\n/**\n * Generates changes array based on change indexes from `findChangeBoundaryIndexes` function. This function will\n * generate array with 0 (no changes), 1 (deletion or insertion) or 2 records (insertion and deletion).\n *\n * @param newArray New array for which change indexes were calculated.\n * @param changeIndexes Change indexes object from `findChangeBoundaryIndexes` function.\n * @returns Array of changes compatible with {@link module:utils/difftochanges~diffToChanges} format.\n */\nfunction changeIndexesToChanges<T>( newArray: ReadonlyArray<T>, changeIndexes: ChangeIndexes ): Array<Change<T>> {\n\tconst result: Array<Change<T>> = [];\n\tconst { firstIndex, lastIndexOld, lastIndexNew } = changeIndexes;\n\n\t// Order operations as 'insert', 'delete' array to keep compatibility with {@link module:utils/difftochanges~diffToChanges}\n\t// in most cases. However, 'diffToChanges' does not stick to any order so in some cases\n\t// (for example replacing '12345' with 'abcd') it will generate 'delete', 'insert' order.\n\tif ( lastIndexNew - firstIndex > 0 ) {\n\t\tresult.push( {\n\t\t\tindex: firstIndex,\n\t\t\ttype: 'insert',\n\t\t\tvalues: newArray.slice( firstIndex, lastIndexNew )\n\t\t} );\n\t}\n\n\tif ( lastIndexOld - firstIndex > 0 ) {\n\t\tresult.push( {\n\t\t\tindex: firstIndex + ( lastIndexNew - firstIndex ), // Increase index of what was inserted.\n\t\t\ttype: 'delete',\n\t\t\thowMany: lastIndexOld - firstIndex\n\t\t} );\n\t}\n\n\treturn result;\n}\n\n/**\n * Generates array with set `equal|insert|delete` operations based on change indexes from `findChangeBoundaryIndexes` function.\n *\n * @param changeIndexes Change indexes object from `findChangeBoundaryIndexes` function.\n * @param newLength Length of the new array on which `findChangeBoundaryIndexes` calculated change indexes.\n * @returns Array of changes compatible with {@link module:utils/diff~diff} format.\n */\nfunction changeIndexesToAtomicChanges( changeIndexes: ChangeIndexes, newLength: number ): Array<DiffResult> {\n\tconst { firstIndex, lastIndexOld, lastIndexNew } = changeIndexes;\n\n\t// No changes.\n\tif ( firstIndex === -1 ) {\n\t\treturn Array( newLength ).fill( 'equal' );\n\t}\n\n\tlet result: Array<DiffResult> = [];\n\n\tif ( firstIndex > 0 ) {\n\t\tresult = result.concat( Array( firstIndex ).fill( 'equal' ) );\n\t}\n\n\tif ( lastIndexNew - firstIndex > 0 ) {\n\t\tresult = result.concat( Array( lastIndexNew - firstIndex ).fill( 'insert' ) );\n\t}\n\n\tif ( lastIndexOld - firstIndex > 0 ) {\n\t\tresult = result.concat( Array( lastIndexOld - firstIndex ).fill( 'delete' ) );\n\t}\n\n\tif ( lastIndexNew < newLength ) {\n\t\tresult = result.concat( Array( newLength - lastIndexNew ).fill( 'equal' ) );\n\t}\n\n\treturn result;\n}\n\n/**\n * Indexes of the first and the last change in the given arrays.\n */\ninterface ChangeIndexes {\n\n\t/**\n\t * Index of the first change in both values (always the same for both).\n\t */\n\tfirstIndex: number;\n\n\t/**\n\t * Index of the last common value in `arr1`.\n\t */\n\tlastIndexOld: number;\n\n\t/**\n\t * Index of the last common value in `arr2`.\n\t */\n\tlastIndexNew: number;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/diff\n */\n\nimport fastDiff from './fastdiff';\n\n// The following code is based on the \"O(NP) Sequence Comparison Algorithm\"\n// by Sun Wu, Udi Manber, Gene Myers, Webb Miller.\n\n/**\n * Calculates the difference between two arrays or strings producing an array containing a list of changes\n * necessary to transform input into output.\n *\n * ```ts\n * diff( 'aba', 'acca' ); // [ 'equal', 'insert', 'insert', 'delete', 'equal' ]\n * ```\n *\n * This function is based on the \"O(NP) Sequence Comparison Algorithm\" by Sun Wu, Udi Manber, Gene Myers, Webb Miller.\n * Unfortunately, while it gives the most precise results, its to complex for longer strings/arrow (above 200 items).\n * Therefore, `diff()` automatically switches to {@link module:utils/fastdiff~fastDiff `fastDiff()`} when detecting\n * such a scenario. The return formats of both functions are identical.\n *\n * @param a Input array or string.\n * @param b Output array or string.\n * @param cmp Optional function used to compare array values, by default === is used.\n * @returns Array of changes.\n */\nexport default function diff<T>(\n\ta: ArrayLike<T>,\n\tb: ArrayLike<T>,\n\tcmp?: ( a: T, b: T ) => boolean\n): Array<DiffResult> {\n\t// Set the comparator function.\n\tcmp = cmp || function( a, b ) {\n\t\treturn a === b;\n\t};\n\n\tconst aLength = a.length;\n\tconst bLength = b.length;\n\n\t// Perform `fastDiff` for longer strings/arrays (see #269).\n\tif ( aLength > 200 || bLength > 200 || aLength + bLength > 300 ) {\n\t\treturn diff.fastDiff( a, b, cmp, true );\n\t}\n\n\t// Temporary action type statics.\n\tlet _insert: DiffResult, _delete: DiffResult;\n\n\t// Swapped the arrays to use the shorter one as the first one.\n\tif ( bLength < aLength ) {\n\t\tconst tmp = a;\n\n\t\ta = b;\n\t\tb = tmp;\n\n\t\t// We swap the action types as well.\n\t\t_insert = 'delete';\n\t\t_delete = 'insert';\n\t} else {\n\t\t_insert = 'insert';\n\t\t_delete = 'delete';\n\t}\n\n\tconst m = a.length;\n\tconst n = b.length;\n\tconst delta = n - m;\n\n\t// Edit scripts, for each diagonal.\n\tconst es: { [ k: number ]: Array<DiffResult> } = {};\n\t// Furthest points, the furthest y we can get on each diagonal.\n\tconst fp: { [ k: number]: number } = {};\n\n\tfunction snake( k: number ): number {\n\t\t// We use -1 as an alternative below to handle initial values ( instead of filling the fp with -1 first ).\n\t\t// Furthest points (y) on the diagonal below k.\n\t\tconst y1 = ( fp[ k - 1 ] !== undefined ? fp[ k - 1 ] : -1 ) + 1;\n\t\t// Furthest points (y) on the diagonal above k.\n\t\tconst y2 = fp[ k + 1 ] !== undefined ? fp[ k + 1 ] : -1;\n\t\t// The way we should go to get further.\n\t\tconst dir = y1 > y2 ? -1 : 1;\n\n\t\t// Clone previous changes array (if any).\n\t\tif ( es[ k + dir ] ) {\n\t\t\tes[ k ] = es[ k + dir ].slice( 0 );\n\t\t}\n\n\t\t// Create changes array.\n\t\tif ( !es[ k ] ) {\n\t\t\tes[ k ] = [];\n\t\t}\n\n\t\t// Push the action.\n\t\tes[ k ].push( y1 > y2 ? _insert : _delete );\n\n\t\t// Set the beginning coordinates.\n\t\tlet y = Math.max( y1, y2 );\n\t\tlet x = y - k;\n\n\t\t// Traverse the diagonal as long as the values match.\n\t\twhile ( x < m && y < n && cmp!( a[ x ], b[ y ] ) ) {\n\t\t\tx++;\n\t\t\ty++;\n\t\t\t// Push no change action.\n\t\t\tes[ k ].push( 'equal' );\n\t\t}\n\n\t\treturn y;\n\t}\n\n\tlet p = 0;\n\tlet k;\n\n\t// Traverse the graph until we reach the end of the longer string.\n\tdo {\n\t\t// Updates furthest points and edit scripts for diagonals below delta.\n\t\tfor ( k = -p; k < delta; k++ ) {\n\t\t\tfp[ k ] = snake( k );\n\t\t}\n\n\t\t// Updates furthest points and edit scripts for diagonals above delta.\n\t\tfor ( k = delta + p; k > delta; k-- ) {\n\t\t\tfp[ k ] = snake( k );\n\t\t}\n\n\t\t// Updates furthest point and edit script for the delta diagonal.\n\t\t// note that the delta diagonal is the one which goes through the sink (m, n).\n\t\tfp[ delta ] = snake( delta );\n\n\t\tp++;\n\t} while ( fp[ delta ] !== n );\n\n\t// Return the final list of edit changes.\n\t// We remove the first item that represents the action for the injected nulls.\n\treturn es[ delta ].slice( 1 );\n}\n\n// Store the API in static property to easily overwrite it in tests.\n// Too bad dependency injection does not work in Webpack + ES 6 (const) + Babel.\ndiff.fastDiff = fastDiff;\n\n/**\n * The element of the result of {@link module:utils/diff~diff} function.\n */\nexport type DiffResult = 'equal' | 'insert' | 'delete';\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/spy\n */\n\n/**\n * Creates a spy function (ala Sinon.js) that can be used to inspect call to it.\n *\n * The following are the present features:\n *\n * * spy.called: property set to `true` if the function has been called at least once.\n *\n * @returns The spy function.\n */\nfunction spy(): { (): void; called?: boolean } {\n\treturn function spy() {\n\t\t( spy as any ).called = true;\n\t};\n}\n\nexport default spy;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/eventinfo\n */\n\nimport spy from './spy';\n\n/**\n * The event object passed to event callbacks. It is used to provide information about the event as well as a tool to\n * manipulate it.\n */\nexport default class EventInfo<TName extends string = string, TReturn = unknown> {\n\t/**\n\t * The object that fired the event.\n\t */\n\tpublic readonly source: object;\n\n\t/**\n\t * The event name.\n\t */\n\tpublic readonly name: TName;\n\n\t/**\n\t * Path this event has followed. See {@link module:utils/emittermixin~Emitter#delegate}.\n\t */\n\tpublic path: Array<object>;\n\n\t/**\n\t * Stops the event emitter to call further callbacks for this event interaction.\n\t */\n\tpublic readonly stop: { (): void; called?: boolean };\n\n\t/**\n\t * Removes the current callback from future interactions of this event.\n\t */\n\tpublic readonly off: { (): void; called?: boolean };\n\n\t/**\n\t * The value which will be returned by {@link module:utils/emittermixin~Emitter#fire}.\n\t *\n\t * It's `undefined` by default and can be changed by an event listener:\n\t *\n\t * ```ts\n\t * dataController.fire( 'getSelectedContent', ( evt ) => {\n\t * \t// This listener will make `dataController.fire( 'getSelectedContent' )`\n\t * \t// always return an empty DocumentFragment.\n\t * \tevt.return = new DocumentFragment();\n\t *\n\t * \t// Make sure no other listeners are executed.\n\t * \tevt.stop();\n\t * } );\n\t * ```\n\t */\n\tpublic return: TReturn | undefined;\n\n\t/**\n\t * @param source The emitter.\n\t * @param name The event name.\n\t */\n\tconstructor( source: object, name: TName ) {\n\t\tthis.source = source;\n\t\tthis.name = name;\n\t\tthis.path = [];\n\n\t\t// The following methods are defined in the constructor because they must be re-created per instance.\n\t\tthis.stop = spy();\n\t\tthis.off = spy();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/uid\n */\n\n/**\n * A hash table of hex numbers to avoid using toString() in uid() which is costly.\n * [ '00', '01', '02', ..., 'fe', 'ff' ]\n */\nconst HEX_NUMBERS = new Array( 256 ).fill( '' )\n\t.map( ( _, index ) => ( '0' + ( index ).toString( 16 ) ).slice( -2 ) );\n\n/**\n * Returns a unique id. The id starts with an \"e\" character and a randomly generated string of\n * 32 alphanumeric characters.\n *\n * **Note**: The characters the unique id is built from correspond to the hex number notation\n * (from \"0\" to \"9\", from \"a\" to \"f\"). In other words, each id corresponds to an \"e\" followed\n * by 16 8-bit numbers next to each other.\n *\n * @returns An unique id string.\n */\nexport default function uid(): string {\n\t// Let's create some positive random 32bit integers first.\n\t//\n\t// 1. Math.random() is a float between 0 and 1.\n\t// 2. 0x100000000 is 2^32 = 4294967296.\n\t// 3. >>> 0 enforces integer (in JS all numbers are floating point).\n\t//\n\t// For instance:\n\t//\t\tMath.random() * 0x100000000 = 3366450031.853859\n\t// but\n\t//\t\tMath.random() * 0x100000000 >>> 0 = 3366450031.\n\tconst r1 = Math.random() * 0x100000000 >>> 0;\n\tconst r2 = Math.random() * 0x100000000 >>> 0;\n\tconst r3 = Math.random() * 0x100000000 >>> 0;\n\tconst r4 = Math.random() * 0x100000000 >>> 0;\n\n\t// Make sure that id does not start with number.\n\treturn 'e' +\n\t\tHEX_NUMBERS[ r1 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r1 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r1 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r1 >> 24 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r2 >> 24 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r3 >> 24 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 0 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 8 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 16 & 0xFF ] +\n\t\tHEX_NUMBERS[ r4 >> 24 & 0xFF ];\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/priorities\n */\n\n/**\n * String representing a priority value.\n */\nexport type PriorityString = 'highest' | 'high' | 'normal' | 'low' | 'lowest' | number;\n\n// This interface exists to make our API pages more readable.\n/**\n * Provides group of constants to use instead of hardcoding numeric priority values.\n */\nexport interface PrioritiesType {\n\n\t/**\n\t * Converts a string with priority name to it's numeric value. If `Number` is given, it just returns it.\n\t *\n\t * @param priority Priority to convert.\n\t * @returns Converted priority.\n\t */\n\tget( priority?: PriorityString ): number;\n\n\treadonly highest: number;\n\treadonly high: number;\n\treadonly normal: number;\n\treadonly low: number;\n\treadonly lowest: number;\n}\n\n/**\n * Provides group of constants to use instead of hardcoding numeric priority values.\n */\nconst priorities: PrioritiesType = {\n\tget( priority: PriorityString = 'normal' ): number {\n\t\tif ( typeof priority != 'number' ) {\n\t\t\treturn this[ priority ] || this.normal;\n\t\t} else {\n\t\t\treturn priority;\n\t\t}\n\t},\n\n\thighest: 100000,\n\thigh: 1000,\n\tnormal: 0,\n\tlow: -1000,\n\tlowest: -100000\n};\n\nexport default priorities;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport priorities, { type PriorityString } from './priorities';\n\n/**\n * @module utils/inserttopriorityarray\n */\n\n/**\n * The priority object descriptor.\n *\n * ```ts\n * const objectWithPriority = {\n * \tpriority: 'high'\n * }\n * ```\n */\nexport interface ObjectWithPriority {\n\n\t/**\n\t * Priority of the object.\n\t */\n\tpriority: PriorityString;\n}\n\n/**\n * Inserts any object with priority at correct index by priority so registered objects are always sorted from highest to lowest priority.\n *\n * @param objects Array of objects with priority to insert object to.\n * @param objectToInsert Object with `priority` property.\n */\nexport default function insertToPriorityArray<T extends ObjectWithPriority>( objects: Array<T>, objectToInsert: T ): void {\n\tconst priority = priorities.get( objectToInsert.priority );\n\n\tfor ( let i = 0; i < objects.length; i++ ) {\n\t\tif ( priorities.get( objects[ i ].priority ) < priority ) {\n\t\t\tobjects.splice( i, 0, objectToInsert );\n\n\t\t\treturn;\n\t\t}\n\t}\n\n\tobjects.push( objectToInsert );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/ckeditorerror\n */\n\n/* globals console */\n\n/**\n * URL to the documentation with error codes.\n */\nexport const DOCUMENTATION_URL = 'https://ckeditor.com/docs/ckeditor5/latest/support/error-codes.html';\n\n/**\n * The CKEditor error class.\n *\n * You should throw `CKEditorError` when:\n *\n * * An unexpected situation occurred and the editor (most probably) will not work properly. Such exception will be handled\n * by the {@link module:watchdog/watchdog~Watchdog watchdog} (if it is integrated),\n * * If the editor is incorrectly integrated or the editor API is used in the wrong way. This way you will give\n * feedback to the developer as soon as possible. Keep in mind that for common integration issues which should not\n * stop editor initialization (like missing upload adapter, wrong name of a toolbar component) we use\n * {@link module:utils/ckeditorerror~logWarning `logWarning()`} and\n * {@link module:utils/ckeditorerror~logError `logError()`}\n * to improve developers experience and let them see the a working editor as soon as possible.\n *\n * ```ts\n * /**\n *  * Error thrown when a plugin cannot be loaded due to JavaScript errors, lack of plugins with a given name, etc.\n *  *\n *  * @error plugin-load\n *  * @param pluginName The name of the plugin that could not be loaded.\n *  * @param moduleName The name of the module which tried to load this plugin.\n *  *\\/\n * throw new CKEditorError( 'plugin-load', {\n * \tpluginName: 'foo',\n * \tmoduleName: 'bar'\n * } );\n * ```\n */\nexport default class CKEditorError extends Error {\n\t/**\n\t * A context of the error by which the Watchdog is able to determine which editor crashed.\n\t */\n\tpublic readonly context: object | null | undefined;\n\n\t/**\n\t * The additional error data passed to the constructor. Undefined if none was passed.\n\t */\n\tpublic readonly data?: object;\n\n\t/**\n\t * Creates an instance of the CKEditorError class.\n\t *\n\t * @param errorName The error id in an `error-name` format. A link to this error documentation page will be added\n\t * to the thrown error's `message`.\n\t * @param context A context of the error by which the {@link module:watchdog/watchdog~Watchdog watchdog}\n\t * is able to determine which editor crashed. It should be an editor instance or a property connected to it. It can be also\n\t * a `null` value if the editor should not be restarted in case of the error (e.g. during the editor initialization).\n\t * The error context should be checked using the `areConnectedThroughProperties( editor, context )` utility\n\t * to check if the object works as the context.\n\t * @param data Additional data describing the error. A stringified version of this object\n\t * will be appended to the error message, so the data are quickly visible in the console. The original\n\t * data object will also be later available under the {@link #data} property.\n\t */\n\tconstructor( errorName: string, context?: object | null, data?: object ) {\n\t\tsuper( getErrorMessage( errorName, data ) );\n\n\t\tthis.name = 'CKEditorError';\n\t\tthis.context = context;\n\t\tthis.data = data;\n\t}\n\n\t/**\n\t * Checks if the error is of the `CKEditorError` type.\n\t */\n\tpublic is( type: string ): boolean {\n\t\treturn type === 'CKEditorError';\n\t}\n\n\t/**\n\t * A utility that ensures that the thrown error is a {@link module:utils/ckeditorerror~CKEditorError} one.\n\t * It is useful when combined with the {@link module:watchdog/watchdog~Watchdog} feature, which can restart the editor in case\n\t * of a {@link module:utils/ckeditorerror~CKEditorError} error.\n\t *\n\t * @param err The error to rethrow.\n\t * @param context An object connected through properties with the editor instance. This context will be used\n\t * by the watchdog to verify which editor should be restarted.\n\t */\n\tpublic static rethrowUnexpectedError( err: Error, context: object ): never {\n\t\tif ( ( err as any ).is && ( err as any ).is( 'CKEditorError' ) ) {\n\t\t\tthrow err;\n\t\t}\n\n\t\t/**\n\t\t * An unexpected error occurred inside the CKEditor 5 codebase. This error will look like the original one\n\t\t * to make the debugging easier.\n\t\t *\n\t\t * This error is only useful when the editor is initialized using the {@link module:watchdog/watchdog~Watchdog} feature.\n\t\t * In case of such error (or any {@link module:utils/ckeditorerror~CKEditorError} error) the watchdog should restart the editor.\n\t\t *\n\t\t * @error unexpected-error\n\t\t */\n\t\tconst error = new CKEditorError( err.message, context );\n\n\t\t// Restore the original stack trace to make the error look like the original one.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/5595 for more details.\n\t\terror.stack = err.stack;\n\n\t\tthrow error;\n\t}\n}\n\n/**\n * Logs a warning to the console with a properly formatted message and adds a link to the documentation.\n * Use whenever you want to log a warning to the console.\n *\n * ```ts\n * /**\n *  * There was a problem processing the configuration of the toolbar. The item with the given\n *  * name does not exist, so it was omitted when rendering the toolbar.\n *  *\n *  * @error toolbarview-item-unavailable\n *  * @param {String} name The name of the component.\n *  *\\/\n * logWarning( 'toolbarview-item-unavailable', { name } );\n * ```\n *\n * See also {@link module:utils/ckeditorerror~CKEditorError} for an explanation when to throw an error and when to log\n * a warning or an error to the console.\n *\n * @param errorName The error name to be logged.\n * @param data Additional data to be logged.\n */\nexport function logWarning( errorName: string, data?: object ): void {\n\tconsole.warn( ...formatConsoleArguments( errorName, data ) );\n}\n\n/**\n * Logs an error to the console with a properly formatted message and adds a link to the documentation.\n * Use whenever you want to log an error to the console.\n *\n * ```ts\n * /**\n *  * There was a problem processing the configuration of the toolbar. The item with the given\n *  * name does not exist, so it was omitted when rendering the toolbar.\n *  *\n *  * @error toolbarview-item-unavailable\n *  * @param {String} name The name of the component.\n *  *\\/\n *  logError( 'toolbarview-item-unavailable', { name } );\n * ```\n *\n * **Note**: In most cases logging a warning using {@link module:utils/ckeditorerror~logWarning} is enough.\n *\n * See also {@link module:utils/ckeditorerror~CKEditorError} for an explanation when to use each method.\n *\n * @param errorName The error name to be logged.\n * @param data Additional data to be logged.\n */\nexport function logError( errorName: string, data?: object ): void {\n\tconsole.error( ...formatConsoleArguments( errorName, data ) );\n}\n\n/**\n * Returns formatted link to documentation message.\n */\nfunction getLinkToDocumentationMessage( errorName: string ): string {\n\treturn `\\nRead more: ${ DOCUMENTATION_URL }#error-${ errorName }`;\n}\n\n/**\n * Returns formatted error message.\n */\nfunction getErrorMessage( errorName: string, data?: object ): string {\n\tconst processedObjects = new WeakSet();\n\tconst circularReferencesReplacer = ( key: string, value: unknown ) => {\n\t\tif ( typeof value === 'object' && value !== null ) {\n\t\t\tif ( processedObjects.has( value ) ) {\n\t\t\t\treturn `[object ${ value.constructor.name }]`;\n\t\t\t}\n\n\t\t\tprocessedObjects.add( value );\n\t\t}\n\n\t\treturn value;\n\t};\n\n\tconst stringifiedData = data ? ` ${ JSON.stringify( data, circularReferencesReplacer ) }` : '';\n\tconst documentationLink = getLinkToDocumentationMessage( errorName );\n\n\treturn errorName + stringifiedData + documentationLink;\n}\n\n/**\n * Returns formatted console error arguments.\n */\nfunction formatConsoleArguments( errorName: string, data?: object ): Array<unknown> {\n\tconst documentationMessage = getLinkToDocumentationMessage( errorName );\n\n\treturn data ? [ errorName, data, documentationMessage ] : [ errorName, documentationMessage ];\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/version\n */\n\n/* globals window, global */\n\nimport CKEditorError from './ckeditorerror';\n\nconst version = '37.1.0';\n\nexport default version;\n\n/* istanbul ignore next -- @preserve */\nconst windowOrGlobal = typeof window === 'object' ? window : global;\n\ndeclare global {\n\t// eslint-disable-next-line no-var\n\tvar CKEDITOR_VERSION: string;\n}\n\n/* istanbul ignore next -- @preserve */\nif ( windowOrGlobal.CKEDITOR_VERSION ) {\n\t/**\n\t * This error is thrown when due to a mistake in how CKEditor 5 was installed or initialized, some\n\t * of its modules were duplicated (evaluated and executed twice). Module duplication leads to inevitable runtime\n\t * errors.\n\t *\n\t * There are many situations in which some modules can be loaded twice. In the worst case scenario,\n\t * you may need to check your project for each of these issues and fix them all.\n\t *\n\t * # Trying to add a plugin to an existing build\n\t *\n\t * If you import an existing CKEditor 5 build and a plugin like this:\n\t *\n\t * ```ts\n\t * import ClassicEditor from '@ckeditor/ckeditor5-build-classic';\n\t * import Highlight from '@ckeditor/ckeditor5-highlight/src/highlight';\n\t * ```\n\t *\n\t * Then your project loads some CKEditor 5 packages twice. How does it happen?\n\t *\n\t * The build package contains a file which is already compiled with webpack. This means\n\t * that it contains all the necessary code from e.g. `@ckeditor/ckeditor5-engine` and `@ckeditor/ckeditor5-utils`.\n\t *\n\t * However, the `Highlight` plugin imports some of the modules from these packages, too. If you ask webpack to\n\t * build such a project, you will end up with the modules being included (and run) twice &mdash; first, because they are\n\t * included inside the build package, and second, because they are required by the `Highlight` plugin.\n\t *\n\t * Therefore, **you must never add plugins to an existing build** unless your plugin has no dependencies.\n\t *\n\t * Adding plugins to a build is done by taking the source version of this build (so, before it was built with webpack)\n\t * and adding plugins there. In this situation, webpack will know that it only needs to load each plugin once.\n\t *\n\t * Read more in the {@glink installation/plugins/installing-plugins Installing plugins} guide.\n\t *\n\t * # Confused an editor build with an editor implementation\n\t *\n\t * This scenario is very similar to the previous one, but has a different origin.\n\t *\n\t * Let's assume that you wanted to use CKEditor 5 from source, as explained in the\n\t * {@glink installation/advanced/alternative-setups/integrating-from-source-webpack \"Building from source\"} section\n\t * or in the {@glink framework/quick-start \"Quick start\"} guide of CKEditor 5 Framework.\n\t *\n\t * The correct way to do so is to import an editor and plugins and run them together like this:\n\t *\n\t * ```ts\n\t * import ClassicEditor from '@ckeditor/ckeditor5-editor-classic/src/classiceditor';\n\t * import Essentials from '@ckeditor/ckeditor5-essentials/src/essentials';\n\t * import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';\n\t * import Bold from '@ckeditor/ckeditor5-basic-styles/src/bold';\n\t * import Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';\n\t *\n\t * ClassicEditor\n\t * \t.create( document.querySelector( '#editor' ), {\n\t * \t\tplugins: [ Essentials, Paragraph, Bold, Italic ],\n\t * \t\ttoolbar: [ 'bold', 'italic' ]\n\t * \t} )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t * \t} )\n\t * \t.catch( error => {\n\t * \t\tconsole.error( error.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * However, you might have mistakenly imported a build instead of the source `ClassicEditor`. In this case\n\t * your imports will look like this:\n\t *\n\t * ```ts\n\t * import ClassicEditor from '@ckeditor/ckeditor5-build-classic';\n\t * import Essentials from '@ckeditor/ckeditor5-essentials/src/essentials';\n\t * import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';\n\t * import Bold from '@ckeditor/ckeditor5-basic-styles/src/bold';\n\t * import Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';\n\t * ```\n\t *\n\t * This creates the same situation as in the previous section because you use a build together with source plugins.\n\t *\n\t * Remember: `@ckeditor/ckeditor5-build-*` packages contain editor builds and `@ckeditor/ckeditor5-editor-*` contain source editors.\n\t *\n\t * # Loading two or more builds on one page\n\t *\n\t * If you use CKEditor 5 builds, you might have loaded two (or more) `ckeditor.js` files on one web page.\n\t * Check your web page for duplicated `<script>` elements or make sure your page builder/bundler includes CKEditor only once.\n\t *\n\t * If you want to use two different types of editors at once, see the\n\t * {@glink installation/advanced/using-two-editors \"Using two different editors\"}\n\t * section.\n\t *\n\t * # Using outdated packages\n\t *\n\t * Building CKEditor 5 from source requires using multiple npm packages. These packages have their dependencies\n\t * to other packages. If you use the latest version of, for example, `@ckeditor/ckeditor5-editor-classic` with\n\t * an outdated version of `@ckeditor/ckeditor5-image`, npm or yarn will need to install two different versions of\n\t * `@ckeditor/ckeditor5-core` because `@ckeditor/ckeditor5-editor-classic` and `@ckeditor/ckeditor5-image` may require\n\t * different versions of the core package.\n\t *\n\t * The solution to this issue is to update all packages to their latest version. We recommend\n\t * using tools like [`npm-check-updates`](https://www.npmjs.com/package/npm-check-updates) which simplify this process.\n\t *\n\t * # Conflicting version of dependencies\n\t *\n\t * This is a special case of the previous scenario. If you use CKEditor 5 with some third-party plugins,\n\t * it may happen that even if you use the latest versions of the official packages and the latest version of\n\t * these third-party packages, there will be a conflict between some of their dependencies.\n\t *\n\t * Such a problem can be resolved by either downgrading CKEditor 5 packages (which we do not recommend) or\n\t * asking the author of the third-party package to upgrade its depdendencies (or forking their project and doing this yourself).\n\t *\n\t * **Note:** All official CKEditor 5 packages (excluding integrations and `ckeditor5-dev-*` packages) are released in the\n\t * same major version. This is &mdash; in the `x.y.z`, the `x` is the same for all packages. This is the simplest way to check\n\t * whether you use packages coming from the same CKEditor 5 version. You can read more about versioning in the\n\t * {@glink updating/versioning-policy Versioning policy} guide.\n\t *\n\t * # Packages were duplicated in `node_modules`\n\t *\n\t * In some situations, especially when calling `npm install` multiple times, it may happen\n\t * that npm will not correctly \"deduplicate\" packages.\n\t *\n\t * Normally, npm deduplicates all packages so, for example, `@ckeditor/ckeditor5-core` is installed only once in `node_modules/`.\n\t * However, it is known to fail to do so from time to time.\n\t *\n\t * We recommend checking if any of the steps listed below help:\n\t *\n\t * * `rm -rf node_modules && npm install` to make sure you have a clean `node_modules/` directory. This step\n\t * is known to help in most cases.\n\t * * If you use `yarn.lock` or `package-lock.json`, remove it before `npm install`.\n\t * * Check whether all CKEditor 5 packages are up to date and reinstall them\n\t * if you changed anything (`rm -rf node_modules && npm install`).\n\t *\n\t * If all packages are correct and compatible with each other, the steps above are known to help. If not, you may\n\t * try to check with `npm ls` how many times packages like `@ckeditor/ckeditor5-core`, `@ckeditor/ckeditor5-engine` and\n\t *`@ckeditor/ckeditor5-utils` are installed. If more than once, verify which package causes that.\n\t *\n\t * @error ckeditor-duplicated-modules\n\t */\n\tthrow new CKEditorError(\n\t\t'ckeditor-duplicated-modules',\n\t\tnull\n\t);\n} else {\n\twindowOrGlobal.CKEDITOR_VERSION = version;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/emittermixin\n */\n\nimport EventInfo from './eventinfo';\nimport uid from './uid';\nimport priorities, { type PriorityString } from './priorities';\nimport insertToPriorityArray from './inserttopriorityarray';\nimport type { Constructor, Mixed } from './mix';\n\n// To check if component is loaded more than once.\nimport './version';\nimport CKEditorError from './ckeditorerror';\n\nconst _listeningTo = Symbol( 'listeningTo' );\nconst _emitterId = Symbol( 'emitterId' );\nconst _delegations = Symbol( 'delegations' );\n\nconst defaultEmitterClass = EmitterMixin( Object );\n\n/**\n * Mixin that injects the {@link ~Emitter events API} into its host.\n *\n * This function creates a class that inherits from the provided `base` and implements `Emitter` interface.\n *\n * ```ts\n * class BaseClass { ... }\n *\n * class MyClass extends EmitterMixin( BaseClass ) {\n * \t// This class derives from `BaseClass` and implements the `Emitter` interface.\n * }\n * ```\n *\n * Read more about the concept of emitters in the:\n * * {@glink framework/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/architecture/core-editor-architecture Core editor architecture} guide.\n * * {@glink framework/deep-dive/event-system Event system} deep-dive guide.\n *\n * @label EXTENDS\n */\nexport default function EmitterMixin<Base extends Constructor>( base: Base ): Mixed<Base, Emitter>;\n\n/**\n * Mixin that injects the {@link ~Emitter events API} into its host.\n *\n * This function creates a class that implements `Emitter` interface.\n *\n * ```ts\n * class MyClass extends EmitterMixin() {\n * \t// This class implements the `Emitter` interface.\n * }\n * ```\n *\n * Read more about the concept of emitters in the:\n * * {@glink framework/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/architecture/core-editor-architecture Core editor architecture} guide.\n * * {@glink framework/deep-dive/event-system Event system} deep dive guide.\n *\n * @label NO_ARGUMENTS\n */\nexport default function EmitterMixin(): {\n\tnew (): Emitter;\n\tprototype: Emitter;\n};\n\nexport default function EmitterMixin( base?: Constructor ): unknown {\n\tif ( !base ) {\n\t\treturn defaultEmitterClass;\n\t}\n\n\tabstract class Mixin extends base implements EmitterInternal {\n\t\tpublic on<TEvent extends BaseEvent>(\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions?: CallbackOptions\n\t\t): void {\n\t\t\tthis.listenTo( this, event, callback, options );\n\t\t}\n\n\t\tpublic once<TEvent extends BaseEvent>(\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions?: CallbackOptions\n\t\t): void {\n\t\t\tlet wasFired = false;\n\n\t\t\tconst onceCallback: typeof callback = ( event, ...args ) => {\n\t\t\t\t// Ensure the callback is called only once even if the callback itself leads to re-firing the event\n\t\t\t\t// (which would call the callback again).\n\t\t\t\tif ( !wasFired ) {\n\t\t\t\t\twasFired = true;\n\n\t\t\t\t\t// Go off() at the first call.\n\t\t\t\t\tevent.off();\n\n\t\t\t\t\t// Go with the original callback.\n\t\t\t\t\tcallback.call( this, event, ...args );\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// Make a similar on() call, simply replacing the callback.\n\t\t\tthis.listenTo( this, event, onceCallback, options );\n\t\t}\n\n\t\tpublic off( event: string, callback: Function ): void {\n\t\t\tthis.stopListening( this, event, callback );\n\t\t}\n\n\t\tpublic listenTo<TEvent extends BaseEvent>(\n\t\t\temitter: Emitter,\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions: CallbackOptions = {}\n\t\t): void {\n\t\t\tlet emitterInfo, eventCallbacks;\n\n\t\t\t// _listeningTo contains a list of emitters that this object is listening to.\n\t\t\t// This list has the following format:\n\t\t\t//\n\t\t\t// _listeningTo: {\n\t\t\t//     emitterId: {\n\t\t\t//         emitter: emitter,\n\t\t\t//         callbacks: {\n\t\t\t//             event1: [ callback1, callback2, ... ]\n\t\t\t//             ....\n\t\t\t//         }\n\t\t\t//     },\n\t\t\t//     ...\n\t\t\t// }\n\n\t\t\tif ( !this[ _listeningTo ] ) {\n\t\t\t\tthis[ _listeningTo ] = {};\n\t\t\t}\n\n\t\t\tconst emitters = this[ _listeningTo ]!;\n\n\t\t\tif ( !_getEmitterId( emitter ) ) {\n\t\t\t\t_setEmitterId( emitter );\n\t\t\t}\n\n\t\t\tconst emitterId = _getEmitterId( emitter )!;\n\n\t\t\tif ( !( emitterInfo = emitters[ emitterId ] ) ) {\n\t\t\t\temitterInfo = emitters[ emitterId ] = {\n\t\t\t\t\temitter,\n\t\t\t\t\tcallbacks: {}\n\t\t\t\t};\n\t\t\t}\n\n\t\t\tif ( !( eventCallbacks = emitterInfo.callbacks[ event ] ) ) {\n\t\t\t\teventCallbacks = emitterInfo.callbacks[ event ] = [];\n\t\t\t}\n\n\t\t\teventCallbacks.push( callback );\n\n\t\t\t// Finally register the callback to the event.\n\t\t\taddEventListener( this, emitter, event, callback, options );\n\t\t}\n\n\t\tpublic stopListening( emitter?: Emitter, event?: string, callback?: Function ): void {\n\t\t\tconst emitters = this[ _listeningTo ];\n\t\t\tlet emitterId = emitter && _getEmitterId( emitter );\n\t\t\tconst emitterInfo = ( emitters && emitterId ) ? emitters[ emitterId ] : undefined;\n\t\t\tconst eventCallbacks = ( emitterInfo && event ) ? emitterInfo.callbacks[ event ] : undefined;\n\n\t\t\t// Stop if nothing has been listened.\n\t\t\tif ( !emitters || ( emitter && !emitterInfo ) || ( event && !eventCallbacks ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// All params provided. off() that single callback.\n\t\t\tif ( callback ) {\n\t\t\t\tremoveEventListener( this, emitter!, event!, callback );\n\n\t\t\t\t// We must remove callbacks as well in order to prevent memory leaks.\n\t\t\t\t// See https://github.com/ckeditor/ckeditor5/pull/8480\n\t\t\t\tconst index = eventCallbacks!.indexOf( callback );\n\n\t\t\t\tif ( index !== -1 ) {\n\t\t\t\t\tif ( eventCallbacks!.length === 1 ) {\n\t\t\t\t\t\tdelete emitterInfo!.callbacks[ event! ];\n\t\t\t\t\t} else {\n\t\t\t\t\t\tremoveEventListener( this, emitter!, event!, callback );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\t// Only `emitter` and `event` provided. off() all callbacks for that event.\n\t\t\telse if ( eventCallbacks ) {\n\t\t\t\twhile ( ( callback = eventCallbacks.pop() ) ) {\n\t\t\t\t\tremoveEventListener( this, emitter!, event!, callback );\n\t\t\t\t}\n\n\t\t\t\tdelete emitterInfo!.callbacks[ event! ];\n\t\t\t}\n\t\t\t// Only `emitter` provided. off() all events for that emitter.\n\t\t\telse if ( emitterInfo ) {\n\t\t\t\tfor ( event in emitterInfo.callbacks ) {\n\t\t\t\t\tthis.stopListening( emitter!, event );\n\t\t\t\t}\n\t\t\t\tdelete emitters[ emitterId! ];\n\t\t\t}\n\t\t\t// No params provided. off() all emitters.\n\t\t\telse {\n\t\t\t\tfor ( emitterId in emitters ) {\n\t\t\t\t\tthis.stopListening( emitters[ emitterId ].emitter );\n\t\t\t\t}\n\t\t\t\tdelete this[ _listeningTo ];\n\t\t\t}\n\t\t}\n\n\t\tpublic fire<TEvent extends BaseEvent>(\n\t\t\teventOrInfo: GetNameOrEventInfo<TEvent>,\n\t\t\t...args: TEvent[ 'args' ]\n\t\t): GetEventInfo<TEvent>[ 'return' ] {\n\t\t\ttry {\n\t\t\t\tconst eventInfo = eventOrInfo instanceof EventInfo ? eventOrInfo : new EventInfo( this, eventOrInfo );\n\t\t\t\tconst event = eventInfo.name;\n\t\t\t\tlet callbacks = getCallbacksForEvent( this, event );\n\n\t\t\t\t// Record that the event passed this emitter on its path.\n\t\t\t\teventInfo.path.push( this );\n\n\t\t\t\t// Handle event listener callbacks first.\n\t\t\t\tif ( callbacks ) {\n\t\t\t\t\t// Arguments passed to each callback.\n\t\t\t\t\tconst callbackArgs = [ eventInfo, ...args ];\n\n\t\t\t\t\t// Copying callbacks array is the easiest and most secure way of preventing infinite loops, when event callbacks\n\t\t\t\t\t// are added while processing other callbacks. Previous solution involved adding counters (unique ids) but\n\t\t\t\t\t// failed if callbacks were added to the queue before currently processed callback.\n\t\t\t\t\t// If this proves to be too inefficient, another method is to change `.on()` so callbacks are stored if same\n\t\t\t\t\t// event is currently processed. Then, `.fire()` at the end, would have to add all stored events.\n\t\t\t\t\tcallbacks = Array.from( callbacks );\n\n\t\t\t\t\tfor ( let i = 0; i < callbacks.length; i++ ) {\n\t\t\t\t\t\tcallbacks[ i ].callback.apply( this, callbackArgs );\n\n\t\t\t\t\t\t// Remove the callback from future requests if off() has been called.\n\t\t\t\t\t\tif ( eventInfo.off.called ) {\n\t\t\t\t\t\t\t// Remove the called mark for the next calls.\n\t\t\t\t\t\t\tdelete eventInfo.off.called;\n\n\t\t\t\t\t\t\tthis._removeEventListener( event, callbacks[ i ].callback );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Do not execute next callbacks if stop() was called.\n\t\t\t\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Delegate event to other emitters if needed.\n\t\t\t\tconst delegations = this[ _delegations ];\n\n\t\t\t\tif ( delegations ) {\n\t\t\t\t\tconst destinations = delegations.get( event );\n\t\t\t\t\tconst passAllDestinations = delegations.get( '*' );\n\n\t\t\t\t\tif ( destinations ) {\n\t\t\t\t\t\tfireDelegatedEvents( destinations, eventInfo, args );\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( passAllDestinations ) {\n\t\t\t\t\t\tfireDelegatedEvents( passAllDestinations, eventInfo, args );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn eventInfo.return;\n\t\t\t} catch ( err ) {\n\t\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t\t/* istanbul ignore next -- @preserve */\n\t\t\t\tCKEditorError.rethrowUnexpectedError( err as Error, this );\n\t\t\t}\n\t\t}\n\n\t\tpublic delegate( ...events: Array<string> ): EmitterMixinDelegateChain {\n\t\t\treturn {\n\t\t\t\tto: ( emitter, nameOrFunction ) => {\n\t\t\t\t\tif ( !this[ _delegations ] ) {\n\t\t\t\t\t\tthis[ _delegations ] = new Map();\n\t\t\t\t\t}\n\n\t\t\t\t\t// Originally there was a for..of loop which unfortunately caused an error in Babel that didn't allow\n\t\t\t\t\t// build an application. See: https://github.com/ckeditor/ckeditor5-react/issues/40.\n\t\t\t\t\tevents.forEach( eventName => {\n\t\t\t\t\t\tconst destinations = this[ _delegations ]!.get( eventName );\n\n\t\t\t\t\t\tif ( !destinations ) {\n\t\t\t\t\t\t\tthis[ _delegations ]!.set( eventName, new Map( [ [ emitter, nameOrFunction ] ] ) );\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tdestinations.set( emitter, nameOrFunction );\n\t\t\t\t\t\t}\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\n\t\tpublic stopDelegating( event?: string, emitter?: Emitter ): void {\n\t\t\tif ( !this[ _delegations ] ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !event ) {\n\t\t\t\tthis[ _delegations ]!.clear();\n\t\t\t} else if ( !emitter ) {\n\t\t\t\tthis[ _delegations ]!.delete( event );\n\t\t\t} else {\n\t\t\t\tconst destinations = this[ _delegations ]!.get( event );\n\n\t\t\t\tif ( destinations ) {\n\t\t\t\t\tdestinations.delete( emitter );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tpublic _addEventListener<TEvent extends BaseEvent>(\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions: CallbackOptions\n\t\t): void {\n\t\t\tcreateEventNamespace( this, event );\n\n\t\t\tconst lists = getCallbacksListsForNamespace( this, event );\n\t\t\tconst priority = priorities.get( options.priority );\n\n\t\t\tconst callbackDefinition = {\n\t\t\t\tcallback,\n\t\t\t\tpriority\n\t\t\t};\n\n\t\t\t// Add the callback to all callbacks list.\n\t\t\tfor ( const callbacks of lists ) {\n\t\t\t\t// Add the callback to the list in the right priority position.\n\t\t\t\tinsertToPriorityArray( callbacks, callbackDefinition );\n\t\t\t}\n\t\t}\n\n\t\tpublic _removeEventListener( event: string, callback: Function ): void {\n\t\t\tconst lists = getCallbacksListsForNamespace( this, event );\n\n\t\t\tfor ( const callbacks of lists ) {\n\t\t\t\tfor ( let i = 0; i < callbacks.length; i++ ) {\n\t\t\t\t\tif ( callbacks[ i ].callback == callback ) {\n\t\t\t\t\t\t// Remove the callback from the list (fixing the next index).\n\t\t\t\t\t\tcallbacks.splice( i, 1 );\n\t\t\t\t\t\ti--;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tpublic _events?: { [ eventName: string ]: EventNode };\n\n\t\tpublic [ _emitterId ]?: string;\n\n\t\tpublic [ _listeningTo ]?: {\n\t\t\t[ emitterId: string ]: {\n\t\t\t\temitter: Emitter;\n\t\t\t\tcallbacks: { [ event: string]: Array<Function> };\n\t\t\t};\n\t\t};\n\n\t\tpublic [ _delegations ]?: Map<string, Map<Emitter, string | ( ( name: string ) => string ) | undefined>>;\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`\n( [\n\t'on', 'once', 'off', 'listenTo',\n\t'stopListening', 'fire', 'delegate', 'stopDelegating',\n\t'_addEventListener', '_removeEventListener'\n] ).forEach( key => {\n\t( EmitterMixin as any )[ key ] = ( defaultEmitterClass.prototype as any )[ key ];\n} );\n\n/**\n * Emitter/listener interface.\n *\n * Can be easily implemented by a class by mixing the {@link module:utils/emittermixin~Emitter} mixin.\n *\n * ```ts\n * class MyClass extends EmitterMixin() {\n * \t// This class now implements the `Emitter` interface.\n * }\n * ```\n *\n * Read more about the usage of this interface in the:\n * * {@glink framework/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/architecture/core-editor-architecture Core editor architecture} guide.\n * * {@glink framework/deep-dive/event-system Event system} deep-dive guide.\n */\nexport interface Emitter {\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired.\n\t *\n\t * Shorthand for {@link #listenTo `this.listenTo( this, event, callback, options )`} (it makes the emitter\n\t * listen on itself).\n\t *\n\t * @typeParam TEvent The type descibing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\ton<TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void;\n\n\t/**\n\t * Registers a callback function to be executed on the next time the event is fired only. This is similar to\n\t * calling {@link #on} followed by {@link #off} in the callback.\n\t *\n\t * @typeParam TEvent The type descibing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tonce<TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void;\n\n\t/**\n\t * Stops executing the callback on the given event.\n\t * Shorthand for {@link #stopListening `this.stopListening( this, event, callback )`}.\n\t *\n\t * @param event The name of the event.\n\t * @param callback The function to stop being called.\n\t */\n\toff( event: string, callback: Function ): void;\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired in a specific (emitter) object.\n\t *\n\t * Events can be grouped in namespaces using `:`.\n\t * When namespaced event is fired, it additionally fires all callbacks for that namespace.\n\t *\n\t * ```ts\n\t * // myEmitter.on( ... ) is a shorthand for myEmitter.listenTo( myEmitter, ... ).\n\t * myEmitter.on( 'myGroup', genericCallback );\n\t * myEmitter.on( 'myGroup:myEvent', specificCallback );\n\t *\n\t * // genericCallback is fired.\n\t * myEmitter.fire( 'myGroup' );\n\t * // both genericCallback and specificCallback are fired.\n\t * myEmitter.fire( 'myGroup:myEvent' );\n\t * // genericCallback is fired even though there are no callbacks for \"foo\".\n\t * myEmitter.fire( 'myGroup:foo' );\n\t * ```\n\t *\n\t * An event callback can {@link module:utils/eventinfo~EventInfo#stop stop the event} and\n\t * set the {@link module:utils/eventinfo~EventInfo#return return value} of the {@link #fire} method.\n\t *\n\t * @label BASE_EMITTER\n\t * @typeParam TEvent The type describing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param emitter The object that fires the event.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tlistenTo<TEvent extends BaseEvent>(\n\t\temitter: Emitter,\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void;\n\n\t/**\n\t * Stops listening for events. It can be used at different levels:\n\t *\n\t * * To stop listening to a specific callback.\n\t * * To stop listening to a specific event.\n\t * * To stop listening to all events fired by a specific object.\n\t * * To stop listening to all events fired by all objects.\n\t *\n\t * @label BASE_STOP\n\t * @param emitter The object to stop listening to. If omitted, stops it for all objects.\n\t * @param event (Requires the `emitter`) The name of the event to stop listening to. If omitted, stops it\n\t * for all events from `emitter`.\n\t * @param callback (Requires the `event`) The function to be removed from the call list for the given\n\t * `event`.\n\t */\n\tstopListening( emitter?: Emitter, event?: string, callback?: Function ): void;\n\n\t/**\n\t * Fires an event, executing all callbacks registered for it.\n\t *\n\t * The first parameter passed to callbacks is an {@link module:utils/eventinfo~EventInfo} object,\n\t * followed by the optional `args` provided in the `fire()` method call.\n\t *\n\t * @typeParam TEvent The type describing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param eventOrInfo The name of the event or `EventInfo` object if event is delegated.\n\t * @param args Additional arguments to be passed to the callbacks.\n\t * @returns By default the method returns `undefined`. However, the return value can be changed by listeners\n\t * through modification of the {@link module:utils/eventinfo~EventInfo#return `evt.return`}'s property (the event info\n\t * is the first param of every callback).\n\t */\n\tfire<TEvent extends BaseEvent>(\n\t\teventOrInfo: GetNameOrEventInfo<TEvent>,\n\t\t...args: TEvent[ 'args' ]\n\t): GetEventInfo<TEvent>[ 'return' ];\n\n\t/**\n\t * Delegates selected events to another {@link module:utils/emittermixin~Emitter}. For instance:\n\t *\n\t * ```ts\n\t * emitterA.delegate( 'eventX' ).to( emitterB );\n\t * emitterA.delegate( 'eventX', 'eventY' ).to( emitterC );\n\t * ```\n\t *\n\t * then `eventX` is delegated (fired by) `emitterB` and `emitterC` along with `data`:\n\t *\n\t * ```ts\n\t * emitterA.fire( 'eventX', data );\n\t * ```\n\t *\n\t * and `eventY` is delegated (fired by) `emitterC` along with `data`:\n\t *\n\t * ```ts\n\t * emitterA.fire( 'eventY', data );\n\t * ```\n\t *\n\t * @param events Event names that will be delegated to another emitter.\n\t */\n\tdelegate( ...events: Array<string> ): EmitterMixinDelegateChain;\n\n\t/**\n\t * Stops delegating events. It can be used at different levels:\n\t *\n\t * * To stop delegating all events.\n\t * * To stop delegating a specific event to all emitters.\n\t * * To stop delegating a specific event to a specific emitter.\n\t *\n\t * @param event The name of the event to stop delegating. If omitted, stops it all delegations.\n\t * @param emitter (requires `event`) The object to stop delegating a particular event to.\n\t * If omitted, stops delegation of `event` to all emitters.\n\t */\n\tstopDelegating( event?: string, emitter?: Emitter ): void;\n}\n\ninterface EmitterInternal extends Emitter {\n\n\t/**\n\t * Adds callback to emitter for given event.\n\t *\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\t_addEventListener?: <TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions: CallbackOptions\n\t) => void;\n\n\t/**\n\t * Removes callback from emitter for given event.\n\t *\n\t * @param event The name of the event.\n\t * @param callback The function to stop being called.\n\t */\n\t_removeEventListener?: ( event: string, callback: Function ) => void;\n\n\t_events?: { [ eventName: string ]: EventNode };\n\n\t[ _emitterId ]?: string;\n\n\t[ _listeningTo ]?: {\n\t\t[ emitterId: string ]: {\n\t\t\temitter: Emitter;\n\t\t\tcallbacks: { [ event: string]: Array<Function> };\n\t\t};\n\t};\n\n\t[ _delegations ]?: Map<string, Map<Emitter, string | ( ( name: string ) => string ) | undefined>>;\n}\n\n/**\n * Default type describing any event.\n *\n * Every custom event has to be compatible with `BaseEvent`.\n *\n * ```ts\n * type MyEvent = {\n * \t// In `fire<MyEvent>( name )`, `on<MyEvent>( name )`, `once<MyEvent>( name )` and `listenTo<MyEvent>( name )` calls\n * \t// the `name` argument will be type-checked to ensure it's `'myEvent'` or have `'myEvent:'` prefix.\n * \t// Required.\n * \tname: 'myEvent' | `myEvent:${ string }`;\n *\n * \t// In `fire<MyEvent>( name, a, b )` call, `a` and `b` parameters will be type-checked against `number` and `string`.\n * \t// In `on<MyEvent>`, `once<MyEvent>` and `listenTo<MyEvent>` calls, the parameters of provided callback function\n * \t// will be automatically inferred as `EventInfo`, `number` and `string`.\n * \t// Required.\n * \targs: [ number, string ];\n *\n * \t// `fire<MyEvent>` will have return type `boolean | undefined`.\n * \t// Optional, unknown by default.\n * \treturn: boolean;\n *\n * \t// `fire<MyEvent>( eventInfo )` will type-check that `eventInfo` is `MyEventInfo`, not a base `EventInfo` or string.\n * \t// In `on<MyEvent>`, `once<MyEvent>` and `listenTo<MyEvent>` calls, the first callback parameter will be of this type.\n * \t// Optional.\n * \teventInfo: MyEventInfo;\n *\n * \t// In `on<MyEvent>`, `once<MyEvent>` and `listenTo<MyEvent>` calls, the `options` parameter will be of type\n * \t// `{ myOption?: boolean; priority?: PriorityString }\n * \t// Optional.\n * \tcallbackOptions: { myOption?: boolean };\n * };\n * ```\n */\nexport type BaseEvent = {\n\tname: string;\n\targs: Array<any>;\n};\n\n/**\n * Utility type that gets the `EventInfo` subclass for the given event.\n */\nexport type GetEventInfo<TEvent extends BaseEvent> = TEvent extends { eventInfo: EventInfo } ?\n\tTEvent[ 'eventInfo' ] :\n\tEventInfo<TEvent[ 'name' ], ( TEvent extends { return: infer TReturn } ? TReturn : unknown )>;\n\n/**\n * Utility type that gets the `EventInfo` subclass or event name type for the given event.\n */\nexport type GetNameOrEventInfo<TEvent extends BaseEvent> = TEvent extends { eventInfo: EventInfo } ?\n\tTEvent[ 'eventInfo' ] :\n\tTEvent[ 'name' ] | EventInfo<TEvent[ 'name' ], ( TEvent extends { return: infer TReturn } ? TReturn : unknown )>;\n\n/**\n * Utility type that gets the callback type for the given event.\n */\nexport type GetCallback<TEvent extends BaseEvent> = ( this: Emitter, ev: GetEventInfo<TEvent>, ...args: TEvent[ 'args' ] ) => void;\n\n/**\n * Utility type that gets the callback options for the given event.\n */\nexport type GetCallbackOptions<TEvent extends BaseEvent> = TEvent extends { callbackOptions: infer TOptions } ?\n\tTOptions & CallbackOptions :\n\tCallbackOptions;\n\n/**\n * Additional options for registering a callback.\n */\nexport interface CallbackOptions {\n\n\t/**\n\t * The priority of this event callback. The higher\n\t * the priority value the sooner the callback will be fired. Events having the same priority are called in the\n\t * order they were added.\n\t *\n\t * @defaultValue `'normal'`\n\t */\n\treadonly priority?: PriorityString;\n}\n\n/**\n * Checks if `listeningEmitter` listens to an emitter with given `listenedToEmitterId` and if so, returns that emitter.\n * If not, returns `null`.\n *\n * @internal\n * @param listeningEmitter An emitter that listens.\n * @param listenedToEmitterId Unique emitter id of emitter listened to.\n */\nexport function _getEmitterListenedTo( listeningEmitter: Emitter, listenedToEmitterId: string ): Emitter | null {\n\tconst listeningTo = ( listeningEmitter as EmitterInternal )[ _listeningTo ];\n\tif ( listeningTo && listeningTo[ listenedToEmitterId ] ) {\n\t\treturn listeningTo[ listenedToEmitterId ].emitter;\n\t}\n\n\treturn null;\n}\n\n/**\n * Sets emitter's unique id.\n *\n * **Note:** `_emitterId` can be set only once.\n *\n * @internal\n * @param emitter An emitter for which id will be set.\n * @param id Unique id to set. If not passed, random unique id will be set.\n */\nexport function _setEmitterId( emitter: Emitter, id?: string ): void {\n\tif ( !( emitter as EmitterInternal )[ _emitterId ] ) {\n\t\t( emitter as EmitterInternal )[ _emitterId ] = id || uid();\n\t}\n}\n\n/**\n * Returns emitter's unique id.\n *\n * @internal\n * @param emitter An emitter which id will be returned.\n */\nexport function _getEmitterId( emitter: Emitter ): string | undefined {\n\treturn ( emitter as EmitterInternal )[ _emitterId ];\n}\n\ninterface EventNode {\n\tcallbacks: Array<{ callback: Function; priority: number }>;\n\tchildEvents: Array<string>;\n}\n\n/**\n * Gets the internal `_events` property of the given object.\n * `_events` property store all lists with callbacks for registered event names.\n * If there were no events registered on the object, empty `_events` object is created.\n */\nfunction getEvents( source: EmitterInternal ): { [ eventName: string ]: EventNode } {\n\tif ( !source._events ) {\n\t\tObject.defineProperty( source, '_events', {\n\t\t\tvalue: {}\n\t\t} );\n\t}\n\n\treturn source._events!;\n}\n\n/**\n * Creates event node for generic-specific events relation architecture.\n */\nfunction makeEventNode(): EventNode {\n\treturn {\n\t\tcallbacks: [],\n\t\tchildEvents: []\n\t};\n}\n\n/**\n * Creates an architecture for generic-specific events relation.\n * If needed, creates all events for given eventName, i.e. if the first registered event\n * is foo:bar:abc, it will create foo:bar:abc, foo:bar and foo event and tie them together.\n * It also copies callbacks from more generic events to more specific events when\n * specific events are created.\n */\nfunction createEventNamespace( source: EmitterInternal, eventName: string ): void {\n\tconst events = getEvents( source );\n\n\t// First, check if the event we want to add to the structure already exists.\n\tif ( events[ eventName ] ) {\n\t\t// If it exists, we don't have to do anything.\n\t\treturn;\n\t}\n\n\t// In other case, we have to create the structure for the event.\n\t// Note, that we might need to create intermediate events too.\n\t// I.e. if foo:bar:abc is being registered and we only have foo in the structure,\n\t// we need to also register foo:bar.\n\n\t// Currently processed event name.\n\tlet name = eventName;\n\t// Name of the event that is a child event for currently processed event.\n\tlet childEventName = null;\n\n\t// Array containing all newly created specific events.\n\tconst newEventNodes = [];\n\n\t// While loop can't check for ':' index because we have to handle generic events too.\n\t// In each loop, we truncate event name, going from the most specific name to the generic one.\n\t// I.e. foo:bar:abc -> foo:bar -> foo.\n\twhile ( name !== '' ) {\n\t\tif ( events[ name ] ) {\n\t\t\t// If the currently processed event name is already registered, we can be sure\n\t\t\t// that it already has all the structure created, so we can break the loop here\n\t\t\t// as no more events need to be registered.\n\t\t\tbreak;\n\t\t}\n\n\t\t// If this event is not yet registered, create a new object for it.\n\t\tevents[ name ] = makeEventNode();\n\t\t// Add it to the array with newly created events.\n\t\tnewEventNodes.push( events[ name ] );\n\n\t\t// Add previously processed event name as a child of this event.\n\t\tif ( childEventName ) {\n\t\t\tevents[ name ].childEvents.push( childEventName );\n\t\t}\n\n\t\tchildEventName = name;\n\t\t// If `.lastIndexOf()` returns -1, `.substr()` will return '' which will break the loop.\n\t\tname = name.substr( 0, name.lastIndexOf( ':' ) );\n\t}\n\n\tif ( name !== '' ) {\n\t\t// If name is not empty, we found an already registered event that was a parent of the\n\t\t// event we wanted to register.\n\n\t\t// Copy that event's callbacks to newly registered events.\n\t\tfor ( const node of newEventNodes ) {\n\t\t\tnode.callbacks = events[ name ].callbacks.slice();\n\t\t}\n\n\t\t// Add last newly created event to the already registered event.\n\t\tevents[ name ].childEvents.push( childEventName! );\n\t}\n}\n\n/**\n * Gets an array containing callbacks list for a given event and it's more specific events.\n * I.e. if given event is foo:bar and there is also foo:bar:abc event registered, this will\n * return callback list of foo:bar and foo:bar:abc (but not foo).\n */\nfunction getCallbacksListsForNamespace( source: EmitterInternal, eventName: string ): Array<EventNode[ 'callbacks' ]> {\n\tconst eventNode = getEvents( source )[ eventName ];\n\n\tif ( !eventNode ) {\n\t\treturn [];\n\t}\n\n\tlet callbacksLists = [ eventNode.callbacks ];\n\n\tfor ( let i = 0; i < eventNode.childEvents.length; i++ ) {\n\t\tconst childCallbacksLists = getCallbacksListsForNamespace( source, eventNode.childEvents[ i ] );\n\n\t\tcallbacksLists = callbacksLists.concat( childCallbacksLists );\n\t}\n\n\treturn callbacksLists;\n}\n\n/**\n * Get the list of callbacks for a given event, but only if there any callbacks have been registered.\n * If there are no callbacks registered for given event, it checks if this is a specific event and looks\n * for callbacks for it's more generic version.\n */\nfunction getCallbacksForEvent( source: EmitterInternal, eventName: string ): EventNode[ 'callbacks' ] | null {\n\tlet event;\n\n\tif ( !source._events || !( event = source._events[ eventName ] ) || !event.callbacks.length ) {\n\t\t// There are no callbacks registered for specified eventName.\n\t\t// But this could be a specific-type event that is in a namespace.\n\t\tif ( eventName.indexOf( ':' ) > -1 ) {\n\t\t\t// If the eventName is specific, try to find callback lists for more generic event.\n\t\t\treturn getCallbacksForEvent( source, eventName.substr( 0, eventName.lastIndexOf( ':' ) ) );\n\t\t} else {\n\t\t\t// If this is a top-level generic event, return null;\n\t\t\treturn null;\n\t\t}\n\t}\n\n\treturn event.callbacks;\n}\n\n/**\n * Fires delegated events for given map of destinations.\n *\n * @param destinations A map containing `[ {@link module:utils/emittermixin~Emitter}, \"event name\" ]` pair destinations.\n * @param eventInfo The original event info object.\n * @param fireArgs Arguments the original event was fired with.\n */\nfunction fireDelegatedEvents(\n\tdestinations: Map<Emitter, string | ( ( name: string ) => string ) | undefined>,\n\teventInfo: EventInfo,\n\tfireArgs: Array<any>\n) {\n\tfor ( let [ emitter, name ] of destinations ) {\n\t\tif ( !name ) {\n\t\t\tname = eventInfo.name;\n\t\t} else if ( typeof name == 'function' ) {\n\t\t\tname = name( eventInfo.name );\n\t\t}\n\n\t\tconst delegatedInfo = new EventInfo( eventInfo.source, name );\n\n\t\tdelegatedInfo.path = [ ...eventInfo.path ];\n\n\t\temitter.fire( delegatedInfo, ...fireArgs );\n\t}\n}\n\n/**\n * Helper for registering event callback on the emitter.\n */\nfunction addEventListener<TEvent extends BaseEvent>(\n\tlistener: EmitterInternal,\n\temitter: EmitterInternal,\n\tevent: TEvent[ 'name' ],\n\tcallback: GetCallback<TEvent>,\n\toptions: CallbackOptions\n) {\n\tif ( emitter._addEventListener ) {\n\t\temitter._addEventListener( event, callback, options );\n\t} else {\n\t\t// Allow listening on objects that do not implement Emitter interface.\n\t\t// This is needed in some tests that are using mocks instead of the real objects with EmitterMixin mixed.\n\t\t( listener._addEventListener!<TEvent> ).call( emitter, event, callback, options );\n\t}\n}\n\n/**\n * Helper for removing event callback from the emitter.\n */\nfunction removeEventListener( listener: EmitterInternal, emitter: EmitterInternal, event: string, callback: Function ): void {\n\tif ( emitter._removeEventListener ) {\n\t\temitter._removeEventListener( event, callback );\n\t} else {\n\t\t// Allow listening on objects that do not implement Emitter interface.\n\t\t// This is needed in some tests that are using mocks instead of the real objects with EmitterMixin mixed.\n\t\tlistener._removeEventListener!.call( emitter, event, callback );\n\t}\n}\n\n/**\n * The return value of {@link ~Emitter#delegate}.\n */\nexport interface EmitterMixinDelegateChain {\n\n\t/**\n\t * Selects destination for {@link module:utils/emittermixin~Emitter#delegate} events.\n\t *\n\t * @param emitter An `EmitterMixin` instance which is the destination for delegated events.\n\t * @param nameOrFunction A custom event name or function which converts the original name string.\n\t */\n\tto( emitter: Emitter, nameOrFunction?: string | ( ( name: string ) => string ) ): void;\n}\n","/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n  var type = typeof value;\n  return value != null && (type == 'object' || type == 'function');\n}\n\nexport default isObject;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/unified-signatures */\n\n/**\n * @module utils/observablemixin\n */\n\nimport EmitterMixin, { type Emitter } from './emittermixin';\nimport CKEditorError from './ckeditorerror';\nimport type { Constructor, Mixed } from './mix';\n\nimport { isObject } from 'lodash-es';\n\nconst observablePropertiesSymbol = Symbol( 'observableProperties' );\nconst boundObservablesSymbol = Symbol( 'boundObservables' );\nconst boundPropertiesSymbol = Symbol( 'boundProperties' );\n\nconst decoratedMethods = Symbol( 'decoratedMethods' );\nconst decoratedOriginal = Symbol( 'decoratedOriginal' );\n\nconst defaultObservableClass = ObservableMixin( EmitterMixin() );\n\n/**\n * A mixin that injects the \"observable properties\" and data binding functionality described in the\n * {@link ~Observable} interface.\n *\n * This function creates a class that inherits from the provided `base` and implements `Observable` interface.\n *\n * ```ts\n * class BaseClass { ... }\n *\n * class MyClass extends ObservableMixin( BaseClass ) {\n * \t// This class derives from `BaseClass` and implements the `Observable` interface.\n * }\n * ```\n *\n * Read more about the concept of observables in the:\n * * {@glink framework/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/architecture/core-editor-architecture Core editor architecture} guide,\n * * {@glink framework/deep-dive/observables Observables deep-dive} guide.\n *\n * @label EXTENDS\n */\nexport default function ObservableMixin<Base extends Constructor<Emitter>>( base: Base ): Mixed<Base, Observable>;\n\n/**\n * A mixin that injects the \"observable properties\" and data binding functionality described in the\n * {@link ~Observable} interface.\n *\n * This function creates a class that implements `Observable` interface.\n *\n * ```ts\n * class MyClass extends ObservableMixin() {\n * \t// This class implements the `Observable` interface.\n * }\n * ```\n *\n * Read more about the concept of observables in the:\n * * {@glink framework/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/architecture/core-editor-architecture Core editor architecture} guide,\n * * {@glink framework/deep-dive/observables Observables deep dive} guide.\n *\n * @label NO_ARGUMENTS\n */\nexport default function ObservableMixin(): {\n\tnew (): Observable;\n\tprototype: Observable;\n};\n\nexport default function ObservableMixin( base?: Constructor<Emitter> ): unknown {\n\tif ( !base ) {\n\t\treturn defaultObservableClass;\n\t}\n\n\tabstract class Mixin extends base implements ObservableInternal {\n\t\tpublic set( name: string | { [ name: string ]: unknown }, value?: unknown ): void {\n\t\t\t// If the first parameter is an Object, iterate over its properties.\n\t\t\tif ( isObject( name ) ) {\n\t\t\t\tObject.keys( name ).forEach( property => {\n\t\t\t\t\tthis.set( property, name[ property ] );\n\t\t\t\t}, this );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tinitObservable( this );\n\n\t\t\tconst properties = this[ observablePropertiesSymbol ];\n\n\t\t\tif ( ( name in this ) && !properties!.has( name ) ) {\n\t\t\t\t/**\n\t\t\t\t * Cannot override an existing property.\n\t\t\t\t *\n\t\t\t\t * This error is thrown when trying to {@link module:utils/observablemixin~Observable#set set} a property with\n\t\t\t\t * a name of an already existing property. For example:\n\t\t\t\t *\n\t\t\t\t * ```ts\n\t\t\t\t * let observable = new Model();\n\t\t\t\t * observable.property = 1;\n\t\t\t\t * observable.set( 'property', 2 );\t\t\t// throws\n\t\t\t\t *\n\t\t\t\t * observable.set( 'property', 1 );\n\t\t\t\t * observable.set( 'property', 2 );\t\t\t// ok, because this is an existing property.\n\t\t\t\t * ```\n\t\t\t\t *\n\t\t\t\t * @error observable-set-cannot-override\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'observable-set-cannot-override', this );\n\t\t\t}\n\n\t\t\tObject.defineProperty( this, name, {\n\t\t\t\tenumerable: true,\n\t\t\t\tconfigurable: true,\n\n\t\t\t\tget() {\n\t\t\t\t\treturn properties!.get( name );\n\t\t\t\t},\n\n\t\t\t\tset( this: Observable, value ) {\n\t\t\t\t\tconst oldValue = properties!.get( name );\n\n\t\t\t\t\t// Fire `set` event before the new value will be set to make it possible\n\t\t\t\t\t// to override observable property without affecting `change` event.\n\t\t\t\t\t// See https://github.com/ckeditor/ckeditor5-utils/issues/171.\n\t\t\t\t\tlet newValue = this.fire<ObservableSetEvent>( `set:${ name }`, name, value, oldValue );\n\n\t\t\t\t\tif ( newValue === undefined ) {\n\t\t\t\t\t\tnewValue = value;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Allow undefined as an initial value like A.define( 'x', undefined ) (#132).\n\t\t\t\t\t// Note: When properties map has no such own property, then its value is undefined.\n\t\t\t\t\tif ( oldValue !== newValue || !properties!.has( name ) ) {\n\t\t\t\t\t\tproperties!.set( name, newValue );\n\t\t\t\t\t\tthis.fire<ObservableChangeEvent>( `change:${ name }`, name, newValue, oldValue );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\t( this as any )[ name ] = value;\n\t\t}\n\n\t\tpublic bind( ...bindProperties: Array<string> ): any {\n\t\t\tif ( !bindProperties.length || !isStringArray( bindProperties ) ) {\n\t\t\t\t/**\n\t\t\t\t * All properties must be strings.\n\t\t\t\t *\n\t\t\t\t * @error observable-bind-wrong-properties\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'observable-bind-wrong-properties', this );\n\t\t\t}\n\n\t\t\tif ( ( new Set( bindProperties ) ).size !== bindProperties.length ) {\n\t\t\t\t/**\n\t\t\t\t * Properties must be unique.\n\t\t\t\t *\n\t\t\t\t * @error observable-bind-duplicate-properties\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'observable-bind-duplicate-properties', this );\n\t\t\t}\n\n\t\t\tinitObservable( this );\n\n\t\t\tconst boundProperties = this[ boundPropertiesSymbol ];\n\n\t\t\tbindProperties.forEach( propertyName => {\n\t\t\t\tif ( boundProperties!.has( propertyName ) ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Cannot bind the same property more than once.\n\t\t\t\t\t *\n\t\t\t\t\t * @error observable-bind-rebind\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'observable-bind-rebind', this );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tconst bindings = new Map<string, Binding>();\n\n\t\t\tbindProperties.forEach( a => {\n\t\t\t\tconst binding = { property: a, to: [] };\n\n\t\t\t\tboundProperties!.set( a, binding );\n\t\t\t\tbindings.set( a, binding );\n\t\t\t} );\n\n\t\t\treturn {\n\t\t\t\tto: bindTo,\n\t\t\t\ttoMany: bindToMany,\n\n\t\t\t\t_observable: this,\n\t\t\t\t_bindProperties: bindProperties,\n\t\t\t\t_to: [],\n\t\t\t\t_bindings: bindings\n\t\t\t};\n\t\t}\n\n\t\tpublic unbind( ...unbindProperties: Array<keyof this & string> ): void {\n\t\t\t// Nothing to do here if not inited yet.\n\t\t\tif ( !( this[ observablePropertiesSymbol ] ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst boundProperties = this[ boundPropertiesSymbol ]!;\n\t\t\tconst boundObservables = this[ boundObservablesSymbol ]!;\n\n\t\t\tif ( unbindProperties.length ) {\n\t\t\t\tif ( !isStringArray( unbindProperties ) ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Properties must be strings.\n\t\t\t\t\t *\n\t\t\t\t\t * @error observable-unbind-wrong-properties\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'observable-unbind-wrong-properties', this );\n\t\t\t\t}\n\n\t\t\t\tunbindProperties.forEach( propertyName => {\n\t\t\t\t\tconst binding = boundProperties.get( propertyName );\n\n\t\t\t\t\t// Nothing to do if the binding is not defined\n\t\t\t\t\tif ( !binding ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\tbinding.to.forEach( ( [ toObservable, toProperty ] ) => {\n\t\t\t\t\t\tconst toProperties = boundObservables.get( toObservable )!;\n\t\t\t\t\t\tconst toPropertyBindings = toProperties[ toProperty ];\n\n\t\t\t\t\t\ttoPropertyBindings.delete( binding );\n\n\t\t\t\t\t\tif ( !toPropertyBindings.size ) {\n\t\t\t\t\t\t\tdelete toProperties[ toProperty ];\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( !Object.keys( toProperties ).length ) {\n\t\t\t\t\t\t\tboundObservables.delete( toObservable );\n\t\t\t\t\t\t\tthis.stopListening( toObservable, 'change' );\n\t\t\t\t\t\t}\n\t\t\t\t\t} );\n\n\t\t\t\t\tboundProperties.delete( propertyName );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tboundObservables.forEach( ( bindings, boundObservable ) => {\n\t\t\t\t\tthis.stopListening( boundObservable, 'change' );\n\t\t\t\t} );\n\n\t\t\t\tboundObservables.clear();\n\t\t\t\tboundProperties.clear();\n\t\t\t}\n\t\t}\n\n\t\tpublic decorate( this: this & { [ x: string ]: any }, methodName: keyof this & string ): void {\n\t\t\tinitObservable( this );\n\n\t\t\tconst originalMethod = this[ methodName ];\n\n\t\t\tif ( !originalMethod ) {\n\t\t\t\t/**\n\t\t\t\t * Cannot decorate an undefined method.\n\t\t\t\t *\n\t\t\t\t * @error observablemixin-cannot-decorate-undefined\n\t\t\t\t * @param {Object} object The object which method should be decorated.\n\t\t\t\t * @param {String} methodName Name of the method which does not exist.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'observablemixin-cannot-decorate-undefined',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ object: this, methodName }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tthis.on( methodName, ( evt, args ) => {\n\t\t\t\tevt.return = originalMethod.apply( this, args );\n\t\t\t} );\n\n\t\t\tthis[ methodName ] = function( ...args: Array<unknown> ) {\n\t\t\t\treturn this.fire( methodName, args );\n\t\t\t};\n\n\t\t\tthis[ methodName ][ decoratedOriginal ] = originalMethod;\n\n\t\t\tif ( !this[ decoratedMethods ] ) {\n\t\t\t\tthis[ decoratedMethods ] = [];\n\t\t\t}\n\n\t\t\tthis[ decoratedMethods ]!.push( methodName );\n\t\t}\n\n\t\t// Override the EmitterMixin stopListening method to be able to clean (and restore) decorated methods.\n\t\t// This is needed in case of:\n\t\t//  1. Have x.foo() decorated.\n\t\t//  2. Call x.stopListening()\n\t\t//  3. Call x.foo(). Problem: nothing happens (the original foo() method is not executed)\n\t\tpublic override stopListening(\n\t\t\tthis: ObservableInternal & { [ x: string ]: any },\n\t\t\temitter?: Emitter,\n\t\t\tevent?: string,\n\t\t\tcallback?: Function\n\t\t): void {\n\t\t\t// Removing all listeners so let's clean the decorated methods to the original state.\n\t\t\tif ( !emitter && this[ decoratedMethods ] ) {\n\t\t\t\tfor ( const methodName of this[ decoratedMethods ]! ) {\n\t\t\t\t\tthis[ methodName ] = this[ methodName ][ decoratedOriginal ];\n\t\t\t\t}\n\n\t\t\t\tdelete this[ decoratedMethods ];\n\t\t\t}\n\n\t\t\tsuper.stopListening( emitter, event, callback );\n\t\t}\n\n\t\tpublic [ observablePropertiesSymbol ]?: Map<string, unknown>;\n\n\t\tpublic [ decoratedMethods ]?: Array<string>;\n\n\t\tpublic [ boundPropertiesSymbol ]?: Map<string, Binding>;\n\n\t\tpublic [ boundObservablesSymbol]?: Map<Observable, Record<string, Set<Binding>>>;\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`\n( [\n\t'set', 'bind', 'unbind', 'decorate',\n\t'on', 'once', 'off', 'listenTo',\n\t'stopListening', 'fire', 'delegate', 'stopDelegating',\n\t'_addEventListener', '_removeEventListener'\n] ).forEach( key => {\n\t( ObservableMixin as any )[ key ] = ( defaultObservableClass.prototype as any )[ key ];\n} );\n\ninterface Binding {\n\n\t/**\n\t * Property which is bound.\n\t */\n\tproperty: string;\n\n\t/**\n\t * Array of observable–property components of the binding (`{ observable: ..., property: .. }`).\n\t */\n\tto: Array<[ Observable, string ]>;\n\n\t/**\n\t * A function which processes `to` components.\n\t */\n\tcallback?: Function;\n}\n\ninterface BindChainInternal {\n\tto: Function;\n\t_observable: Observable;\n\t_bindings: Map<string, Binding>;\n\t_bindProperties: Array<string>;\n\t_to: Array<{\n\t\tobservable: Observable;\n\t\tproperties: Array<string>;\n\t}>;\n}\n\n// Init symbol properties needed for the observable mechanism to work.\nfunction initObservable( observable: ObservableInternal ): void {\n\t// Do nothing if already inited.\n\tif ( observable[ observablePropertiesSymbol ] ) {\n\t\treturn;\n\t}\n\n\t// The internal hash containing the observable's state.\n\tObject.defineProperty( observable, observablePropertiesSymbol, {\n\t\tvalue: new Map()\n\t} );\n\n\t// Map containing bindings to external observables. It shares the binding objects\n\t// (`{ observable: A, property: 'a', to: ... }`) with {@link module:utils/observablemixin~Observable#_boundProperties} and\n\t// it is used to observe external observables to update own properties accordingly.\n\t// See {@link module:utils/observablemixin~Observable#bind}.\n\t//\n\t//\t\tA.bind( 'a', 'b', 'c' ).to( B, 'x', 'y', 'x' );\n\t//\t\tconsole.log( A._boundObservables );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\tB: {\n\t//\t\t\t\t\tx: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\t\t\t{ observable: A, property: 'c', to: [ [ B, 'x' ] ] }\n\t//\t\t\t\t\t] ),\n\t//\t\t\t\t\ty: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\t\t] )\n\t//\t\t\t\t}\n\t//\t\t\t} )\n\t//\n\t//\t\tA.bind( 'd' ).to( B, 'z' ).to( C, 'w' ).as( callback );\n\t//\t\tconsole.log( A._boundObservables );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\tB: {\n\t//\t\t\t\t\tx: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\t\t\t{ observable: A, property: 'c', to: [ [ B, 'x' ] ] }\n\t//\t\t\t\t\t] ),\n\t//\t\t\t\t\ty: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\t\t] ),\n\t//\t\t\t\t\tz: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'd', to: [ [ B, 'z' ], [ C, 'w' ] ], callback: callback }\n\t//\t\t\t\t\t] )\n\t//\t\t\t\t},\n\t//\t\t\t\tC: {\n\t//\t\t\t\t\tw: Set( [\n\t//\t\t\t\t\t\t{ observable: A, property: 'd', to: [ [ B, 'z' ], [ C, 'w' ] ], callback: callback }\n\t//\t\t\t\t\t] )\n\t//\t\t\t\t}\n\t//\t\t\t} )\n\t//\n\tObject.defineProperty( observable, boundObservablesSymbol, {\n\t\tvalue: new Map()\n\t} );\n\n\t// Object that stores which properties of this observable are bound and how. It shares\n\t// the binding objects (`{ observable: A, property: 'a', to: ... }`) with\n\t// {@link module:utils/observablemixin~Observable#_boundObservables}. This data structure is\n\t// a reverse of {@link module:utils/observablemixin~Observable#_boundObservables} and it is helpful for\n\t// {@link module:utils/observablemixin~Observable#unbind}.\n\t//\n\t// See {@link module:utils/observablemixin~Observable#bind}.\n\t//\n\t//\t\tA.bind( 'a', 'b', 'c' ).to( B, 'x', 'y', 'x' );\n\t//\t\tconsole.log( A._boundProperties );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\ta: { observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\tb: { observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\tc: { observable: A, property: 'c', to: [ [ B, 'x' ] ] }\n\t//\t\t\t} )\n\t//\n\t//\t\tA.bind( 'd' ).to( B, 'z' ).to( C, 'w' ).as( callback );\n\t//\t\tconsole.log( A._boundProperties );\n\t//\n\t//\t\t\tMap( {\n\t//\t\t\t\ta: { observable: A, property: 'a', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\tb: { observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n\t//\t\t\t\tc: { observable: A, property: 'c', to: [ [ B, 'x' ] ] },\n\t//\t\t\t\td: { observable: A, property: 'd', to: [ [ B, 'z' ], [ C, 'w' ] ], callback: callback }\n\t//\t\t\t} )\n\tObject.defineProperty( observable, boundPropertiesSymbol, {\n\t\tvalue: new Map()\n\t} );\n}\n\n/**\n * A chaining for {@link module:utils/observablemixin~Observable#bind} providing `.to()` interface.\n *\n * @param args Arguments of the `.to( args )` binding.\n */\nfunction bindTo( this: BindChainInternal, ...args: Array<Observable | string | Function> ): void {\n\tconst parsedArgs = parseBindToArgs( ...args );\n\tconst bindingsKeys = Array.from( this._bindings.keys() );\n\tconst numberOfBindings = bindingsKeys.length;\n\n\t// Eliminate A.bind( 'x' ).to( B, C )\n\tif ( !parsedArgs.callback && parsedArgs.to.length > 1 ) {\n\t\t/**\n\t\t * Binding multiple observables only possible with callback.\n\t\t *\n\t\t * @error observable-bind-to-no-callback\n\t\t */\n\t\tthrow new CKEditorError( 'observable-bind-to-no-callback', this );\n\t}\n\n\t// Eliminate A.bind( 'x', 'y' ).to( B, callback )\n\tif ( numberOfBindings > 1 && parsedArgs.callback ) {\n\t\t/**\n\t\t * Cannot bind multiple properties and use a callback in one binding.\n\t\t *\n\t\t * @error observable-bind-to-extra-callback\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'observable-bind-to-extra-callback',\n\t\t\tthis\n\t\t);\n\t}\n\n\tparsedArgs.to.forEach( to => {\n\t\t// Eliminate A.bind( 'x', 'y' ).to( B, 'a' )\n\t\tif ( to.properties.length && to.properties.length !== numberOfBindings ) {\n\t\t\t/**\n\t\t\t * The number of properties must match.\n\t\t\t *\n\t\t\t * @error observable-bind-to-properties-length\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'observable-bind-to-properties-length', this );\n\t\t}\n\n\t\t// When no to.properties specified, observing source properties instead i.e.\n\t\t// A.bind( 'x', 'y' ).to( B ) -> Observe B.x and B.y\n\t\tif ( !to.properties.length ) {\n\t\t\tto.properties = this._bindProperties;\n\t\t}\n\t} );\n\n\tthis._to = parsedArgs.to;\n\n\t// Fill {@link BindChain#_bindings} with callback. When the callback is set there's only one binding.\n\tif ( parsedArgs.callback ) {\n\t\tthis._bindings.get( bindingsKeys[ 0 ] )!.callback = parsedArgs.callback;\n\t}\n\n\tattachBindToListeners( this._observable, this._to );\n\n\t// Update observable._boundProperties and observable._boundObservables.\n\tupdateBindToBound( this );\n\n\t// Set initial values of bound properties.\n\tthis._bindProperties.forEach( propertyName => {\n\t\tupdateBoundObservableProperty( this._observable, propertyName );\n\t} );\n}\n\n/**\n * Binds to an attribute in a set of iterable observables.\n */\nfunction bindToMany( this: BindChainInternal, observables: Array<Observable>, attribute: string, callback: Function ): void {\n\tif ( this._bindings.size > 1 ) {\n\t\t/**\n\t\t * Binding one attribute to many observables only possible with one attribute.\n\t\t *\n\t\t * @error observable-bind-to-many-not-one-binding\n\t\t */\n\t\tthrow new CKEditorError( 'observable-bind-to-many-not-one-binding', this );\n\t}\n\n\tthis.to(\n\t\t// Bind to #attribute of each observable...\n\t\t...getBindingTargets( observables, attribute ),\n\t\t// ...using given callback to parse attribute values.\n\t\tcallback\n\t);\n}\n\n/**\n * Returns an array of binding components for\n * {@link Observable#bind} from a set of iterable observables.\n */\nfunction getBindingTargets( observables: Array<Observable>, attribute: string ): Array<Observable | string> {\n\tconst observableAndAttributePairs = observables.map( observable => [ observable, attribute ] );\n\n\t// Merge pairs to one-dimension array of observables and attributes.\n\treturn Array.prototype.concat.apply( [], observableAndAttributePairs );\n}\n\n/**\n * Check if all entries of the array are of `String` type.\n */\nfunction isStringArray( arr: Array<unknown> ): arr is Array<string> {\n\treturn arr.every( a => typeof a == 'string' );\n}\n\n/**\n * Parses and validates {@link Observable#bind}`.to( args )` arguments and returns\n * an object with a parsed structure. For example\n *\n * ```ts\n * A.bind( 'x' ).to( B, 'a', C, 'b', call );\n * ```\n *\n * becomes\n *\n * ```ts\n * {\n * \tto: [\n * \t\t{ observable: B, properties: [ 'a' ] },\n * \t\t{ observable: C, properties: [ 'b' ] },\n * \t],\n * \tcallback: call\n * }\n *\n * @param args Arguments of {@link Observable#bind}`.to( args )`.\n */\nfunction parseBindToArgs( ...args: Array<Observable | string | Function> ) {\n\t// Eliminate A.bind( 'x' ).to()\n\tif ( !args.length ) {\n\t\t/**\n\t\t * Invalid argument syntax in `to()`.\n\t\t *\n\t\t * @error observable-bind-to-parse-error\n\t\t */\n\t\tthrow new CKEditorError( 'observable-bind-to-parse-error', null );\n\t}\n\n\tconst parsed: { to: BindChainInternal[ '_to' ]; callback?: Function } = { to: [] };\n\tlet lastObservable: { observable: Observable; properties: Array<string> };\n\n\tif ( typeof args[ args.length - 1 ] == 'function' ) {\n\t\tparsed.callback = args.pop() as Function;\n\t}\n\n\targs.forEach( a => {\n\t\tif ( typeof a == 'string' ) {\n\t\t\tlastObservable.properties.push( a );\n\t\t} else if ( typeof a == 'object' ) {\n\t\t\tlastObservable = { observable: a, properties: [] };\n\t\t\tparsed.to.push( lastObservable );\n\t\t} else {\n\t\t\tthrow new CKEditorError( 'observable-bind-to-parse-error', null );\n\t\t}\n\t} );\n\n\treturn parsed;\n}\n\n/**\n * Synchronizes {@link module:utils/observable#_boundObservables} with {@link Binding}.\n *\n * @param binding A binding to store in {@link Observable#_boundObservables}.\n * @param toObservable A observable, which is a new component of `binding`.\n * @param toPropertyName A name of `toObservable`'s property, a new component of the `binding`.\n */\nfunction updateBoundObservables(\n\tobservable: ObservableInternal,\n\tbinding: Binding,\n\ttoObservable: Observable,\n\ttoPropertyName: string\n): void {\n\tconst boundObservables = observable[ boundObservablesSymbol ]!;\n\tconst bindingsToObservable = boundObservables.get( toObservable );\n\tconst bindings = bindingsToObservable || {};\n\n\tif ( !bindings[ toPropertyName ] ) {\n\t\tbindings[ toPropertyName ] = new Set();\n\t}\n\n\t// Pass the binding to a corresponding Set in `observable._boundObservables`.\n\tbindings[ toPropertyName ].add( binding );\n\n\tif ( !bindingsToObservable ) {\n\t\tboundObservables.set( toObservable, bindings );\n\t}\n}\n\n/**\n * Synchronizes {@link Observable#_boundProperties} and {@link Observable#_boundObservables}\n * with {@link BindChain}.\n *\n * Assuming the following binding being created\n *\n * ```ts\n * A.bind( 'a', 'b' ).to( B, 'x', 'y' );\n * ```\n *\n * the following bindings were initialized by {@link Observable#bind} in {@link BindChain#_bindings}:\n *\n * ```ts\n * {\n * \ta: { observable: A, property: 'a', to: [] },\n * \tb: { observable: A, property: 'b', to: [] },\n * }\n * ```\n *\n * Iterate over all bindings in this chain and fill their `to` properties with\n * corresponding to( ... ) arguments (components of the binding), so\n *\n * ```ts\n * {\n * \ta: { observable: A, property: 'a', to: [ B, 'x' ] },\n * \tb: { observable: A, property: 'b', to: [ B, 'y' ] },\n * }\n * ```\n *\n * Then update the structure of {@link Observable#_boundObservables} with updated\n * binding, so it becomes:\n *\n * ```ts\n * Map( {\n * \tB: {\n * \t\tx: Set( [\n * \t\t\t{ observable: A, property: 'a', to: [ [ B, 'x' ] ] }\n * \t\t] ),\n * \t\ty: Set( [\n * \t\t\t{ observable: A, property: 'b', to: [ [ B, 'y' ] ] },\n * \t\t] )\n * \t}\n * } )\n * ```\n *\n * @param chain The binding initialized by {@link Observable#bind}.\n */\nfunction updateBindToBound( chain: BindChainInternal ): void {\n\tlet toProperty;\n\n\tchain._bindings.forEach( ( binding, propertyName ) => {\n\t\t// Note: For a binding without a callback, this will run only once\n\t\t// like in A.bind( 'x', 'y' ).to( B, 'a', 'b' )\n\t\t// TODO: ES6 destructuring.\n\t\tchain._to.forEach( to => {\n\t\t\ttoProperty = to.properties[ binding.callback ? 0 : chain._bindProperties.indexOf( propertyName ) ];\n\n\t\t\tbinding.to.push( [ to.observable, toProperty ] );\n\t\t\tupdateBoundObservables( chain._observable, binding, to.observable, toProperty );\n\t\t} );\n\t} );\n}\n\n/**\n * Updates an property of a {@link Observable} with a value\n * determined by an entry in {@link Observable#_boundProperties}.\n *\n * @param observable A observable which property is to be updated.\n * @param propertyName An property to be updated.\n */\nfunction updateBoundObservableProperty( observable: ObservableInternal, propertyName: string ): void {\n\tconst boundProperties = observable[ boundPropertiesSymbol ]!;\n\tconst binding = boundProperties.get( propertyName )!;\n\tlet propertyValue;\n\n\t// When a binding with callback is created like\n\t//\n\t// \t\tA.bind( 'a' ).to( B, 'b', C, 'c', callback );\n\t//\n\t// collect B.b and C.c, then pass them to callback to set A.a.\n\tif ( binding.callback ) {\n\t\tpropertyValue = binding.callback.apply( observable, binding.to.map( to => ( to[ 0 ] as any )[ to[ 1 ] ] ) );\n\t} else {\n\t\tpropertyValue = binding.to[ 0 ];\n\t\tpropertyValue = ( propertyValue[ 0 ] as any )[ propertyValue[ 1 ] ];\n\t}\n\n\tif ( Object.prototype.hasOwnProperty.call( observable, propertyName ) ) {\n\t\t( observable as any )[ propertyName ] = propertyValue;\n\t} else {\n\t\tobservable.set( propertyName as any, propertyValue );\n\t}\n}\n\n/**\n * Starts listening to changes in {@link BindChain._to} observables to update\n * {@link BindChain._observable} {@link BindChain._bindProperties}. Also sets the\n * initial state of {@link BindChain._observable}.\n *\n * @param chain The chain initialized by {@link Observable#bind}.\n */\nfunction attachBindToListeners( observable: ObservableInternal, toBindings: BindChainInternal[ '_to' ] ): void {\n\ttoBindings.forEach( to => {\n\t\tconst boundObservables = observable[ boundObservablesSymbol ]!;\n\t\tlet bindings;\n\n\t\t// If there's already a chain between the observables (`observable` listens to\n\t\t// `to.observable`), there's no need to create another `change` event listener.\n\t\tif ( !boundObservables.get( to.observable ) ) {\n\t\t\tobservable.listenTo<ObservableChangeEvent>( to.observable, 'change', ( evt, propertyName ) => {\n\t\t\t\tbindings = boundObservables.get( to.observable )![ propertyName ];\n\n\t\t\t\t// Note: to.observable will fire for any property change, react\n\t\t\t\t// to changes of properties which are bound only.\n\t\t\t\tif ( bindings ) {\n\t\t\t\t\tbindings.forEach( binding => {\n\t\t\t\t\t\tupdateBoundObservableProperty( observable, binding.property );\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t} );\n}\n\n/**\n * An interface which adds \"observable properties\" and data binding functionality.\n *\n * Can be easily implemented by a class by mixing the {@link module:utils/observablemixin~Observable} mixin.\n *\n * ```ts\n * class MyClass extends ObservableMixin( OtherBaseClass ) {\n * \t// This class now implements the `Observable` interface.\n * }\n * ```\n *\n * Read more about the usage of this interface in the:\n * * {@glink framework/architecture/core-editor-architecture#event-system-and-observables Event system and observables}\n * section of the {@glink framework/architecture/core-editor-architecture Core editor architecture} guide,\n * * {@glink framework/deep-dive/observables Observables deep-dive} guide.\n */\nexport interface Observable extends Emitter {\n\n\t/**\n\t * Creates and sets the value of an observable property of this object. Such a property becomes a part\n\t * of the state and is observable.\n\t *\n\t * This method throws the `observable-set-cannot-override` error if the observable instance already\n\t * has a property with the given property name. This prevents from mistakenly overriding existing\n\t * properties and methods, but means that `foo.set( 'bar', 1 )` may be slightly slower than `foo.bar = 1`.\n\t *\n\t * In TypeScript, those properties should be declared in class using `declare` keyword. In example:\n\t *\n\t * ```ts\n\t * public declare myProp: number;\n\t *\n\t * constructor() {\n\t * \tthis.set( 'myProp', 2 );\n\t * }\n\t * ```\n\t *\n\t * @label KEY_VALUE\n\t * @param name The property's name.\n\t * @param value The property's value.\n\t */\n\tset<K extends keyof this & string>( name: K, value: this[ K ] ): void;\n\n\t/**\n\t * Creates and sets the value of an observable properties of this object. Such a property becomes a part\n\t * of the state and is observable.\n\t *\n\t * It accepts a single object literal containing key/value pairs with properties to be set.\n\t *\n\t * This method throws the `observable-set-cannot-override` error if the observable instance already\n\t * has a property with the given property name. This prevents from mistakenly overriding existing\n\t * properties and methods, but means that `foo.set( 'bar', 1 )` may be slightly slower than `foo.bar = 1`.\n\t *\n\t * In TypeScript, those properties should be declared in class using `declare` keyword. In example:\n\t *\n\t * ```ts\n\t * public declare myProp1: number;\n\t * public declare myProp2: string;\n\t *\n\t * constructor() {\n\t * \tthis.set( {\n\t * \t\t'myProp1: 2,\n\t * \t\t'myProp2: 'foo'\n\t * \t} );\n\t * }\n\t * ```\n\t * @label OBJECT\n\t * @param values An object with `name=>value` pairs.\n\t */\n\tset( values: object & { readonly [ K in keyof this ]?: unknown } ): void;\n\n\t/**\n\t * Binds {@link #set observable properties} to other objects implementing the\n\t * {@link module:utils/observablemixin~Observable} interface.\n\t *\n\t * Read more in the {@glink framework/deep-dive/observables#property-bindings dedicated} guide\n\t * covering the topic of property bindings with some additional examples.\n\t *\n\t * Consider two objects: a `button` and an associated `command` (both `Observable`).\n\t *\n\t * A simple property binding could be as follows:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t * ```\n\t *\n\t * or even shorter:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * ```\n\t *\n\t * which works in the following way:\n\t *\n\t * * `button.isEnabled` **instantly equals** `command.isEnabled`,\n\t * * whenever `command.isEnabled` changes, `button.isEnabled` will immediately reflect its value.\n\t *\n\t * **Note**: To release the binding, use {@link module:utils/observablemixin~Observable#unbind}.\n\t *\n\t * You can also \"rename\" the property in the binding by specifying the new name in the `to()` chain:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isWorking' );\n\t * ```\n\t *\n\t * It is possible to bind more than one property at a time to shorten the code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled', 'value' ).to( command );\n\t * ```\n\t *\n\t * which corresponds to:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * button.bind( 'value' ).to( command );\n\t * ```\n\t *\n\t * The binding can include more than one observable, combining multiple data sources in a custom callback:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible',\n\t * \t( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );\n\t * ```\n\t *\n\t * Using a custom callback allows processing the value before passing it to the target property:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );\n\t * ```\n\t *\n\t * It is also possible to bind to the same property in an array of observables.\n\t * To bind a `button` to multiple commands (also `Observables`) so that each and every one of them\n\t * must be enabled for the button to become enabled, use the following code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled',\n\t * \t( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );\n\t * ```\n\t *\n\t * @label SINGLE_BIND\n\t * @param bindProperty Observable property that will be bound to other observable(s).\n\t * @returns The bind chain with the `to()` and `toMany()` methods.\n\t */\n\tbind<K extends keyof this & string>(\n\t\tbindProperty: K\n\t): SingleBindChain<K, this[ K ]>;\n\n\t/**\n\t * Binds {@link #set observable properties} to other objects implementing the\n\t * {@link module:utils/observablemixin~Observable} interface.\n\t *\n\t * Read more in the {@glink framework/deep-dive/observables#property-bindings dedicated} guide\n\t * covering the topic of property bindings with some additional examples.\n\t *\n\t * Consider two objects: a `button` and an associated `command` (both `Observable`).\n\t *\n\t * A simple property binding could be as follows:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t * ```\n\t *\n\t * or even shorter:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * ```\n\t *\n\t * which works in the following way:\n\t *\n\t * * `button.isEnabled` **instantly equals** `command.isEnabled`,\n\t * * whenever `command.isEnabled` changes, `button.isEnabled` will immediately reflect its value.\n\t *\n\t * **Note**: To release the binding, use {@link module:utils/observablemixin~Observable#unbind}.\n\t *\n\t * You can also \"rename\" the property in the binding by specifying the new name in the `to()` chain:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isWorking' );\n\t * ```\n\t *\n\t * It is possible to bind more than one property at a time to shorten the code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled', 'value' ).to( command );\n\t * ```\n\t *\n\t * which corresponds to:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * button.bind( 'value' ).to( command );\n\t * ```\n\t *\n\t * The binding can include more than one observable, combining multiple data sources in a custom callback:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible',\n\t * \t( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );\n\t * ```\n\t *\n\t * Using a custom callback allows processing the value before passing it to the target property:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );\n\t * ```\n\t *\n\t * It is also possible to bind to the same property in an array of observables.\n\t * To bind a `button` to multiple commands (also `Observables`) so that each and every one of them\n\t * must be enabled for the button to become enabled, use the following code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled',\n\t * \t( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );\n\t * ```\n\t *\n\t * @label DUAL_BIND\n\t * @param bindProperty1 Observable property that will be bound to other observable(s).\n\t * @param bindProperty2 Observable property that will be bound to other observable(s).\n\t * @returns The bind chain with the `to()` and `toMany()` methods.\n\t */\n\tbind<K1 extends keyof this & string, K2 extends keyof this & string>(\n\t\tbindProperty1: K1,\n\t\tbindProperty2: K2\n\t): DualBindChain<K1, this[ K1 ], K2, this[ K2 ]>;\n\n\t/**\n\t * Binds {@link #set observable properties} to other objects implementing the\n\t * {@link module:utils/observablemixin~Observable} interface.\n\t *\n\t * Read more in the {@glink framework/deep-dive/observables#property-bindings dedicated} guide\n\t * covering the topic of property bindings with some additional examples.\n\t *\n\t * Consider two objects: a `button` and an associated `command` (both `Observable`).\n\t *\n\t * A simple property binding could be as follows:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t * ```\n\t *\n\t * or even shorter:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * ```\n\t *\n\t * which works in the following way:\n\t *\n\t * * `button.isEnabled` **instantly equals** `command.isEnabled`,\n\t * * whenever `command.isEnabled` changes, `button.isEnabled` will immediately reflect its value.\n\t *\n\t * **Note**: To release the binding, use {@link module:utils/observablemixin~Observable#unbind}.\n\t *\n\t * You can also \"rename\" the property in the binding by specifying the new name in the `to()` chain:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isWorking' );\n\t * ```\n\t *\n\t * It is possible to bind more than one property at a time to shorten the code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled', 'value' ).to( command );\n\t * ```\n\t *\n\t * which corresponds to:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command );\n\t * button.bind( 'value' ).to( command );\n\t * ```\n\t *\n\t * The binding can include more than one observable, combining multiple data sources in a custom callback:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible',\n\t * \t( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );\n\t * ```\n\t *\n\t * Using a custom callback allows processing the value before passing it to the target property:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );\n\t * ```\n\t *\n\t * It is also possible to bind to the same property in an array of observables.\n\t * To bind a `button` to multiple commands (also `Observables`) so that each and every one of them\n\t * must be enabled for the button to become enabled, use the following code:\n\t *\n\t * ```ts\n\t * button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled',\n\t * \t( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );\n\t * ```\n\t *\n\t * @label MANY_BIND\n\t * @param bindProperties Observable properties that will be bound to other observable(s).\n\t * @returns The bind chain with the `to()` and `toMany()` methods.\n\t */\n\tbind( ...bindProperties: Array<keyof this & string> ): MultiBindChain;\n\n\t/**\n\t * Removes the binding created with {@link #bind}.\n\t *\n\t * ```ts\n\t * // Removes the binding for the 'a' property.\n\t * A.unbind( 'a' );\n\t *\n\t * // Removes bindings for all properties.\n\t * A.unbind();\n\t * ```\n\t *\n\t * @param unbindProperties Observable properties to be unbound. All the bindings will\n\t * be released if no properties are provided.\n\t */\n\tunbind( ...unbindProperties: Array<keyof this & string> ): void;\n\n\t/**\n\t * Turns the given methods of this object into event-based ones. This means that the new method will fire an event\n\t * (named after the method) and the original action will be plugged as a listener to that event.\n\t *\n\t * Read more in the {@glink framework/deep-dive/observables#decorating-object-methods dedicated} guide\n\t * covering the topic of decorating methods with some additional examples.\n\t *\n\t * Decorating the method does not change its behavior (it only adds an event),\n\t * but it allows to modify it later on by listening to the method's event.\n\t *\n\t * For example, to cancel the method execution the event can be {@link module:utils/eventinfo~EventInfo#stop stopped}:\n\t *\n\t * ```ts\n\t * class Foo extends ObservableMixin() {\n\t * \tconstructor() {\n\t * \t\tsuper();\n\t * \t\tthis.decorate( 'method' );\n\t * \t}\n\t *\n\t * \tmethod() {\n\t * \t\tconsole.log( 'called!' );\n\t * \t}\n\t * }\n\t *\n\t * const foo = new Foo();\n\t * foo.on( 'method', ( evt ) => {\n\t * \tevt.stop();\n\t * }, { priority: 'high' } );\n\t *\n\t * foo.method(); // Nothing is logged.\n\t * ```\n\t *\n\t *\n\t * **Note**: The high {@link module:utils/priorities~PriorityString priority} listener\n\t * has been used to execute this particular callback before the one which calls the original method\n\t * (which uses the \"normal\" priority).\n\t *\n\t * It is also possible to change the returned value:\n\t *\n\t * ```ts\n\t * foo.on( 'method', ( evt ) => {\n\t * \tevt.return = 'Foo!';\n\t * } );\n\t *\n\t * foo.method(); // -> 'Foo'\n\t * ```\n\t *\n\t * Finally, it is possible to access and modify the arguments the method is called with:\n\t *\n\t * ```ts\n\t * method( a, b ) {\n\t * \tconsole.log( `${ a }, ${ b }`  );\n\t * }\n\t *\n\t * // ...\n\t *\n\t * foo.on( 'method', ( evt, args ) => {\n\t * \targs[ 0 ] = 3;\n\t *\n\t * \tconsole.log( args[ 1 ] ); // -> 2\n\t * }, { priority: 'high' } );\n\t *\n\t * foo.method( 1, 2 ); // -> '3, 2'\n\t * ```\n\t *\n\t * @param methodName Name of the method to decorate.\n\t */\n\tdecorate( methodName: keyof this & string ): void;\n}\n\ninterface ObservableInternal extends Observable {\n\t[ observablePropertiesSymbol ]?: Map<string, unknown>;\n\n\t[ decoratedMethods ]?: Array<string>;\n\n\t[ boundPropertiesSymbol ]?: Map<string, Binding>;\n\n\t[ boundObservablesSymbol]?: Map<Observable, Record<string, Set<Binding>>>;\n}\n\n/**\n * Fired when a property changed value.\n *\n * ```ts\n * observable.set( 'prop', 1 );\n *\n * observable.on<ObservableChangeEvent<number>>( 'change:prop', ( evt, propertyName, newValue, oldValue ) => {\n * \tconsole.log( `${ propertyName } has changed from ${ oldValue } to ${ newValue }` );\n * } );\n *\n * observable.prop = 2; // -> 'prop has changed from 1 to 2'\n * ```\n *\n * @eventName ~Observable#change:\\{property\\}\n * @param {String} name The property name.\n * @param {*} value The new property value.\n * @param {*} oldValue The previous property value.\n */\nexport type ObservableChangeEvent<TValue = any> = {\n\tname: 'change' | `change:${ string }`;\n\targs: [ name: string, value: TValue, oldValue: TValue ];\n};\n\n/**\n * Fired when a property value is going to be set but is not set yet (before the `change` event is fired).\n *\n * You can control the final value of the property by using\n * the {@link module:utils/eventinfo~EventInfo#return event's `return` property}.\n *\n * ```ts\n * observable.set( 'prop', 1 );\n *\n * observable.on<ObservableSetEvent<number>>( 'set:prop', ( evt, propertyName, newValue, oldValue ) => {\n * \tconsole.log( `Value is going to be changed from ${ oldValue } to ${ newValue }` );\n * \tconsole.log( `Current property value is ${ observable[ propertyName ] }` );\n *\n * \t// Let's override the value.\n * \tevt.return = 3;\n * } );\n *\n * observable.on<ObservableChangeEvent<number>>( 'change:prop', ( evt, propertyName, newValue, oldValue ) => {\n * \tconsole.log( `Value has changed from ${ oldValue } to ${ newValue }` );\n * } );\n *\n * observable.prop = 2; // -> 'Value is going to be changed from 1 to 2'\n *                      // -> 'Current property value is 1'\n *                      // -> 'Value has changed from 1 to 3'\n * ```\n *\n * **Note:** The event is fired even when the new value is the same as the old value.\n *\n * @eventName ~Observable#set:\\{property\\}\n * @param {String} name The property name.\n * @param {*} value The new property value.\n * @param {*} oldValue The previous property value.\n */\nexport type ObservableSetEvent<TValue = any> = {\n\tname: 'set' | `set:${ string }`;\n\targs: [ name: string, value: TValue, oldValue: TValue ];\n\treturn: TValue;\n};\n\n/**\n * Utility type that creates an event describing type from decorated method.\n *\n * ```ts\n * class Foo extends ObservableMixin() {\n * \tconstructor() {\n * \t\tsuper();\n * \t\tthis.decorate( 'method' );\n * \t}\n *\n * \tmethod( a: number, b: number ): number {\n * \t\treturn a + b;\n * \t}\n * }\n *\n * type FooMethodEvent = DecoratedMethodEvent<Foo, 'method'>;\n *\n * const foo = new Foo();\n *\n * foo.on<FooMethodEvent>( 'method', ( evt, [ a, b ] ) => {\n * \t// `a` and `b` are inferred as numbers.\n * } )\n * ```\n */\nexport type DecoratedMethodEvent<\n\tTObservable extends Observable & { [ N in TName ]: ( ...args: Array<any> ) => any },\n\tTName extends keyof TObservable & string\n> = {\n\tname: TName;\n\targs: [ Parameters<TObservable[ TName ]> ];\n\treturn: ReturnType<TObservable[ TName ]>;\n};\n\ninterface SingleBindChain<TKey extends string, TVal> {\n\ttoMany<O extends Observable, K extends keyof O>(\n\t\tobservables: ReadonlyArray<O>,\n\t\tkey: K,\n\t\tcallback: ( ...values: Array<O[ K ]> ) => TVal\n\t): void;\n\n\tto<O extends Observable & { [ P in TKey ]: TVal }>(\n\t\tobservable: O\n\t): void;\n\tto<O extends Observable & { [ P in TKey ]: any }>(\n\t\tobservable: O,\n\t\tcallback: ( value: O[ TKey ] ) => TVal\n\t): void;\n\tto<O extends Observable & { [ P in K ]: TVal }, K extends keyof O>(\n\t\tobservable: O,\n\t\tkey: K\n\t): void;\n\tto<O extends Observable, K extends keyof O>(\n\t\tobservable: O,\n\t\tkey: K,\n\t\tcallback: ( value: O[ K ] ) => TVal,\n\t): void;\n\tto<\n\t\tO1 extends Observable & { [ P in TKey ]: any },\n\t\tO2 extends Observable & { [ P in TKey ]: any }\n\t>(\n\t\tobservable1: O1,\n\t\tobservable2: O2,\n\t\tcallback: ( value1: O1[ TKey ], value2: O2[ TKey ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable,\n\t\tK1 extends keyof O1,\n\t\tO2 extends Observable,\n\t\tK2 extends keyof O2\n\t>(\n\t\tobservable1: O1,\n\t\tkey1: K1,\n\t\tobservable2: O2,\n\t\tkey2: K2,\n\t\tcallback: ( value1: O1[ K1 ], value2: O2[ K2 ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable & { [ P in TKey ]: any },\n\t\tO2 extends Observable & { [ P in TKey ]: any },\n\t\tO3 extends Observable & { [ P in TKey ]: any }\n\t>(\n\t\tobservable1: O1,\n\t\tobservable2: O2,\n\t\tobservable3: O3,\n\t\tcallback: ( value1: O1[ TKey ], value2: O2[ TKey ], value3: O3[ TKey ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable,\n\t\tK1 extends keyof O1,\n\t\tO2 extends Observable,\n\t\tK2 extends keyof O2,\n\t\tO3 extends Observable,\n\t\tK3 extends keyof O3\n\t>(\n\t\tobservable1: O1,\n\t\tkey1: K1,\n\t\tobservable2: O2,\n\t\tkey2: K2,\n\t\tobservable3: O3,\n\t\tkey3: K3,\n\t\tcallback: ( value1: O1[ K1 ], value2: O2[ K2 ], value3: O3[ K3 ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable & { [ P in TKey ]: any },\n\t\tO2 extends Observable & { [ P in TKey ]: any },\n\t\tO3 extends Observable & { [ P in TKey ]: any },\n\t\tO4 extends Observable & { [ P in TKey ]: any }\n\t>(\n\t\tobservable1: O1,\n\t\tobservable2: O2,\n\t\tobservable3: O3,\n\t\tobservable4: O4,\n\t\tcallback: ( value1: O1[ TKey ], value2: O2[ TKey ], value3: O3[ TKey ], value4: O4[ TKey ] ) => TVal\n\t): void;\n\tto<\n\t\tO1 extends Observable,\n\t\tK1 extends keyof O1,\n\t\tO2 extends Observable,\n\t\tK2 extends keyof O2,\n\t\tO3 extends Observable,\n\t\tK3 extends keyof O3,\n\t\tO4 extends Observable,\n\t\tK4 extends keyof O4\n\t>(\n\t\tobservable1: O1,\n\t\tkey1: K1,\n\t\tobservable2: O2,\n\t\tkey2: K2,\n\t\tobservable3: O3,\n\t\tkey3: K3,\n\t\tobservable4: O4,\n\t\tkey4: K4,\n\t\tcallback: ( value1: O1[ K1 ], value2: O2[ K2 ], value3: O3[ K3 ], value4: O4[ K4 ] ) => TVal\n\t): void;\n}\n\ninterface DualBindChain<TKey1 extends string, TVal1, TKey2 extends string, TVal2> {\n\tto<\n\t\tO extends Observable & { [ P in K1 ]: TVal1 } & { [ P in K2 ]: TVal2 },\n\t\tK1 extends keyof O,\n\t\tK2 extends keyof O\n\t>(\n\t\tobservable: O,\n\t\tkey1: K1,\n\t\tkey2: K2\n\t): void;\n\n\tto<\n\t\tO extends Observable & { [ P in TKey1 ]: TVal1 } & { [ P in TKey2 ]: TVal2 }\n\t>(\n\t\tobservable: O\n\t): void;\n}\n\ninterface MultiBindChain {\n\tto<O extends Observable>( observable: O, ...properties: Array<keyof O> ): void;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/count\n */\n\n/**\n * Returns the number of items return by the iterator.\n *\n * ```ts\n * count( [ 1, 2, 3, 4, 5 ] ); // 5;\n * ```\n *\n * @param iterable Any iterable.\n * @returns Number of items returned by that iterable.\n */\nexport default function count( iterable: Iterable<unknown> ): number {\n\tlet count = 0;\n\n\tfor ( const _ of iterable ) { // eslint-disable-line no-unused-vars\n\t\tcount++;\n\t}\n\n\treturn count;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/comparearrays\n */\n\n/**\n * Compares how given arrays relate to each other. One array can be: same as another array, prefix of another array\n * or completely different. If arrays are different, first index at which they differ is returned. Otherwise,\n * a flag specifying the relation is returned. Flags are negative numbers, so whenever a number >= 0 is returned\n * it means that arrays differ.\n *\n * ```ts\n * compareArrays( [ 0, 2 ], [ 0, 2 ] );\t\t// 'same'\n * compareArrays( [ 0, 2 ], [ 0, 2, 1 ] );\t\t// 'prefix'\n * compareArrays( [ 0, 2 ], [ 0 ] );\t\t\t// 'extension'\n * compareArrays( [ 0, 2 ], [ 1, 2 ] );\t\t// 0\n * compareArrays( [ 0, 2 ], [ 0, 1 ] );\t\t// 1\n * ```\n *\n * @param a Array that is compared.\n * @param b Array to compare with.\n * @returns How array `a` is related to `b`.\n */\nexport default function compareArrays( a: ReadonlyArray<unknown>, b: ReadonlyArray<unknown> ): ArrayRelation | number {\n\tconst minLen = Math.min( a.length, b.length );\n\n\tfor ( let i = 0; i < minLen; i++ ) {\n\t\tif ( a[ i ] != b[ i ] ) {\n\t\t\t// The arrays are different.\n\t\t\treturn i;\n\t\t}\n\t}\n\n\t// Both arrays were same at all points.\n\tif ( a.length == b.length ) {\n\t\t// If their length is also same, they are the same.\n\t\treturn 'same';\n\t} else if ( a.length < b.length ) {\n\t\t// Compared array is shorter so it is a prefix of the other array.\n\t\treturn 'prefix';\n\t} else {\n\t\t// Compared array is longer so it is an extension of the other array.\n\t\treturn 'extension';\n\t}\n}\n\n/**\n * Array relation.\n */\nexport type ArrayRelation = 'extension' | 'same' | 'prefix';\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/isiterable\n */\n\n/**\n * Checks if value implements iterator interface.\n *\n * @param value The value to check.\n * @returns True if value implements iterator interface.\n */\nexport default function isIterable( value: any ): value is Iterable<any> {\n\treturn !!( value && value[ Symbol.iterator ] );\n}\n","/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\nexport default freeGlobal;\n","import freeGlobal from './_freeGlobal.js';\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nexport default root;\n","import root from './_root.js';\n\n/** Built-in value references. */\nvar Symbol = root.Symbol;\n\nexport default Symbol;\n","import Symbol from './_Symbol.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n  var isOwn = hasOwnProperty.call(value, symToStringTag),\n      tag = value[symToStringTag];\n\n  try {\n    value[symToStringTag] = undefined;\n    var unmasked = true;\n  } catch (e) {}\n\n  var result = nativeObjectToString.call(value);\n  if (unmasked) {\n    if (isOwn) {\n      value[symToStringTag] = tag;\n    } else {\n      delete value[symToStringTag];\n    }\n  }\n  return result;\n}\n\nexport default getRawTag;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n  return nativeObjectToString.call(value);\n}\n\nexport default objectToString;\n","import Symbol from './_Symbol.js';\nimport getRawTag from './_getRawTag.js';\nimport objectToString from './_objectToString.js';\n\n/** `Object#toString` result references. */\nvar nullTag = '[object Null]',\n    undefinedTag = '[object Undefined]';\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n  if (value == null) {\n    return value === undefined ? undefinedTag : nullTag;\n  }\n  return (symToStringTag && symToStringTag in Object(value))\n    ? getRawTag(value)\n    : objectToString(value);\n}\n\nexport default baseGetTag;\n","/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\nexport default isArray;\n","/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n  return value != null && typeof value == 'object';\n}\n\nexport default isObjectLike;\n","import baseGetTag from './_baseGetTag.js';\nimport isArray from './isArray.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar stringTag = '[object String]';\n\n/**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\nfunction isString(value) {\n  return typeof value == 'string' ||\n    (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n}\n\nexport default isString;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/createelement\n */\n\nimport isIterable from '../isiterable';\nimport { isString } from 'lodash-es';\n\n/**\n * Attributes to be applied to the HTML element.\n */\ntype HTMLElementAttributes = { readonly [ key: string ]: string };\n\n/**\n * Attributes to be applied to the SVG element.\n */\ntype SVGElementAttributes = HTMLElementAttributes & { xmlns: string };\n\n/**\n * Element or elements that will be added to the created element as children. Strings will be automatically turned into Text nodes.\n */\ntype ChildrenElements = Node | string | Iterable<Node | string>;\n\n/**\n * Creates an HTML element with attributes and children elements.\n *\n * ```ts\n * createElement( document, 'p' ); // <p>\n * createElement( document, 'p', { class: 'foo' } ); // <p class=\"foo\">\n * createElement( document, 'p', null, 'foo' ); // <p>foo</p>\n * createElement( document, 'p', null, [ createElement(...) ] ); // <p><...></p>\n * ```\n *\n * @label HTML_ELEMENT\n * @param doc Document used to create the element.\n * @param name Name of the HTML element.\n * @param attributes Object where keys represent attribute keys and values represent attribute values.\n * @param children Child or any iterable of children. Strings will be automatically turned into Text nodes.\n * @returns HTML element.\n */\nexport default function createElement<T extends keyof HTMLElementTagNameMap>(\n\tdoc: Document,\n\tname: T,\n\tattributes?: HTMLElementAttributes,\n\tchildren?: ChildrenElements\n): HTMLElementTagNameMap[T];\n\n/**\n * Creates an SVG element with attributes and children elements.\n *\n * ```ts\n * createElement( document, 'mask', { xmlns: 'http://www.w3.org/2000/svg' } ); // <mask>\n * createElement( document, 'mask', { xmlns: 'http://www.w3.org/2000/svg', id: 'foo' } ); // <mask id=\"foo\">\n * createElement( document, 'mask', { xmlns: 'http://www.w3.org/2000/svg' }, 'foo' ); // <mask>foo</mask>\n * createElement( document, 'mask', { xmlns: 'http://www.w3.org/2000/svg' }, [ createElement(...) ] ); // <mask><...></mask>\n * ```\n *\n * @label SVG_ELEMENT\n * @param doc Document used to create the element.\n * @param name Name of the SVG element.\n * @param attributes Object where keys represent attribute keys and values represent attribute values.\n * @param children Child or any iterable of children. Strings will be automatically turned into Text nodes.\n * @returns SVG element.\n */\nexport default function createElement<T extends keyof SVGElementTagNameMap>(\n\tdoc: Document,\n\tname: T,\n\tattributes: SVGElementAttributes,\n\tchildren?: ChildrenElements\n): SVGElementTagNameMap[T];\n\n/**\n * Creates an HTML or SVG element with attributes and children elements.\n *\n * ```ts\n * createElement( document, 'p' ); // <p>\n * createElement( document, 'mask', { xmlns: 'http://www.w3.org/2000/svg' } ); // <mask>\n * ```\n *\n * @param doc Document used to create the element.\n * @param name Name of the element.\n * @param attributes Object where keys represent attribute keys and values represent attribute values.\n * @param children Child or any iterable of children. Strings will be automatically turned into Text nodes.\n * @returns HTML or SVG element.\n */\nexport default function createElement(\n\tdoc: Document,\n\tname: string,\n\tattributes: SVGElementAttributes | HTMLElementAttributes = {},\n\tchildren: ChildrenElements = []\n): Element {\n\tconst namespace = attributes && attributes.xmlns;\n\tconst element = namespace ? doc.createElementNS( namespace, name ) : doc.createElement( name );\n\n\tfor ( const key in attributes ) {\n\t\telement.setAttribute( key, attributes[ key ] );\n\t}\n\n\tif ( isString( children ) || !isIterable( children ) ) {\n\t\tchildren = [ children ];\n\t}\n\n\tfor ( let child of children ) {\n\t\tif ( isString( child ) ) {\n\t\t\tchild = doc.createTextNode( child );\n\t\t}\n\n\t\telement.appendChild( child );\n\t}\n\n\treturn element;\n}\n","/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n  return function(arg) {\n    return func(transform(arg));\n  };\n}\n\nexport default overArg;\n","import overArg from './_overArg.js';\n\n/** Built-in value references. */\nvar getPrototype = overArg(Object.getPrototypeOf, Object);\n\nexport default getPrototype;\n","import baseGetTag from './_baseGetTag.js';\nimport getPrototype from './_getPrototype.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n    objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to infer the `Object` constructor. */\nvar objectCtorString = funcToString.call(Object);\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n  if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n    return false;\n  }\n  var proto = getPrototype(value);\n  if (proto === null) {\n    return true;\n  }\n  var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n  return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n    funcToString.call(Ctor) == objectCtorString;\n}\n\nexport default isPlainObject;\n","/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n  this.__data__ = [];\n  this.size = 0;\n}\n\nexport default listCacheClear;\n","/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n  return value === other || (value !== value && other !== other);\n}\n\nexport default eq;\n","import eq from './eq.js';\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n  var length = array.length;\n  while (length--) {\n    if (eq(array[length][0], key)) {\n      return length;\n    }\n  }\n  return -1;\n}\n\nexport default assocIndexOf;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype;\n\n/** Built-in value references. */\nvar splice = arrayProto.splice;\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n  var data = this.__data__,\n      index = assocIndexOf(data, key);\n\n  if (index < 0) {\n    return false;\n  }\n  var lastIndex = data.length - 1;\n  if (index == lastIndex) {\n    data.pop();\n  } else {\n    splice.call(data, index, 1);\n  }\n  --this.size;\n  return true;\n}\n\nexport default listCacheDelete;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n  var data = this.__data__,\n      index = assocIndexOf(data, key);\n\n  return index < 0 ? undefined : data[index][1];\n}\n\nexport default listCacheGet;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n  return assocIndexOf(this.__data__, key) > -1;\n}\n\nexport default listCacheHas;\n","import assocIndexOf from './_assocIndexOf.js';\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n  var data = this.__data__,\n      index = assocIndexOf(data, key);\n\n  if (index < 0) {\n    ++this.size;\n    data.push([key, value]);\n  } else {\n    data[index][1] = value;\n  }\n  return this;\n}\n\nexport default listCacheSet;\n","import listCacheClear from './_listCacheClear.js';\nimport listCacheDelete from './_listCacheDelete.js';\nimport listCacheGet from './_listCacheGet.js';\nimport listCacheHas from './_listCacheHas.js';\nimport listCacheSet from './_listCacheSet.js';\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n  var index = -1,\n      length = entries == null ? 0 : entries.length;\n\n  this.clear();\n  while (++index < length) {\n    var entry = entries[index];\n    this.set(entry[0], entry[1]);\n  }\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\nexport default ListCache;\n","import ListCache from './_ListCache.js';\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n  this.__data__ = new ListCache;\n  this.size = 0;\n}\n\nexport default stackClear;\n","/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n  var data = this.__data__,\n      result = data['delete'](key);\n\n  this.size = data.size;\n  return result;\n}\n\nexport default stackDelete;\n","/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n  return this.__data__.get(key);\n}\n\nexport default stackGet;\n","/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n  return this.__data__.has(key);\n}\n\nexport default stackHas;\n","import baseGetTag from './_baseGetTag.js';\nimport isObject from './isObject.js';\n\n/** `Object#toString` result references. */\nvar asyncTag = '[object AsyncFunction]',\n    funcTag = '[object Function]',\n    genTag = '[object GeneratorFunction]',\n    proxyTag = '[object Proxy]';\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n  if (!isObject(value)) {\n    return false;\n  }\n  // The use of `Object#toString` avoids issues with the `typeof` operator\n  // in Safari 9 which returns 'object' for typed arrays and other constructors.\n  var tag = baseGetTag(value);\n  return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n}\n\nexport default isFunction;\n","import root from './_root.js';\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\nexport default coreJsData;\n","import coreJsData from './_coreJsData.js';\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n  var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n  return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n  return !!maskSrcKey && (maskSrcKey in func);\n}\n\nexport default isMasked;\n","/** Used for built-in method references. */\nvar funcProto = Function.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n  if (func != null) {\n    try {\n      return funcToString.call(func);\n    } catch (e) {}\n    try {\n      return (func + '');\n    } catch (e) {}\n  }\n  return '';\n}\n\nexport default toSource;\n","import isFunction from './isFunction.js';\nimport isMasked from './_isMasked.js';\nimport isObject from './isObject.js';\nimport toSource from './_toSource.js';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n    objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n  .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n *  else `false`.\n */\nfunction baseIsNative(value) {\n  if (!isObject(value) || isMasked(value)) {\n    return false;\n  }\n  var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n  return pattern.test(toSource(value));\n}\n\nexport default baseIsNative;\n","/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n  return object == null ? undefined : object[key];\n}\n\nexport default getValue;\n","import baseIsNative from './_baseIsNative.js';\nimport getValue from './_getValue.js';\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n  var value = getValue(object, key);\n  return baseIsNative(value) ? value : undefined;\n}\n\nexport default getNative;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar Map = getNative(root, 'Map');\n\nexport default Map;\n","import getNative from './_getNative.js';\n\n/* Built-in method references that are verified to be native. */\nvar nativeCreate = getNative(Object, 'create');\n\nexport default nativeCreate;\n","import nativeCreate from './_nativeCreate.js';\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n  this.__data__ = nativeCreate ? nativeCreate(null) : {};\n  this.size = 0;\n}\n\nexport default hashClear;\n","/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n  var result = this.has(key) && delete this.__data__[key];\n  this.size -= result ? 1 : 0;\n  return result;\n}\n\nexport default hashDelete;\n","import nativeCreate from './_nativeCreate.js';\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n  var data = this.__data__;\n  if (nativeCreate) {\n    var result = data[key];\n    return result === HASH_UNDEFINED ? undefined : result;\n  }\n  return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\nexport default hashGet;\n","import nativeCreate from './_nativeCreate.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n  var data = this.__data__;\n  return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n}\n\nexport default hashHas;\n","import nativeCreate from './_nativeCreate.js';\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n  var data = this.__data__;\n  this.size += this.has(key) ? 0 : 1;\n  data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n  return this;\n}\n\nexport default hashSet;\n","import hashClear from './_hashClear.js';\nimport hashDelete from './_hashDelete.js';\nimport hashGet from './_hashGet.js';\nimport hashHas from './_hashHas.js';\nimport hashSet from './_hashSet.js';\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n  var index = -1,\n      length = entries == null ? 0 : entries.length;\n\n  this.clear();\n  while (++index < length) {\n    var entry = entries[index];\n    this.set(entry[0], entry[1]);\n  }\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\nexport default Hash;\n","import Hash from './_Hash.js';\nimport ListCache from './_ListCache.js';\nimport Map from './_Map.js';\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n  this.size = 0;\n  this.__data__ = {\n    'hash': new Hash,\n    'map': new (Map || ListCache),\n    'string': new Hash\n  };\n}\n\nexport default mapCacheClear;\n","/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n  var type = typeof value;\n  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n    ? (value !== '__proto__')\n    : (value === null);\n}\n\nexport default isKeyable;\n","import isKeyable from './_isKeyable.js';\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n  var data = map.__data__;\n  return isKeyable(key)\n    ? data[typeof key == 'string' ? 'string' : 'hash']\n    : data.map;\n}\n\nexport default getMapData;\n","import getMapData from './_getMapData.js';\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n  var result = getMapData(this, key)['delete'](key);\n  this.size -= result ? 1 : 0;\n  return result;\n}\n\nexport default mapCacheDelete;\n","import getMapData from './_getMapData.js';\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n  return getMapData(this, key).get(key);\n}\n\nexport default mapCacheGet;\n","import getMapData from './_getMapData.js';\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n  return getMapData(this, key).has(key);\n}\n\nexport default mapCacheHas;\n","import getMapData from './_getMapData.js';\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n  var data = getMapData(this, key),\n      size = data.size;\n\n  data.set(key, value);\n  this.size += data.size == size ? 0 : 1;\n  return this;\n}\n\nexport default mapCacheSet;\n","import mapCacheClear from './_mapCacheClear.js';\nimport mapCacheDelete from './_mapCacheDelete.js';\nimport mapCacheGet from './_mapCacheGet.js';\nimport mapCacheHas from './_mapCacheHas.js';\nimport mapCacheSet from './_mapCacheSet.js';\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n  var index = -1,\n      length = entries == null ? 0 : entries.length;\n\n  this.clear();\n  while (++index < length) {\n    var entry = entries[index];\n    this.set(entry[0], entry[1]);\n  }\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\nexport default MapCache;\n","import ListCache from './_ListCache.js';\nimport Map from './_Map.js';\nimport MapCache from './_MapCache.js';\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n  var data = this.__data__;\n  if (data instanceof ListCache) {\n    var pairs = data.__data__;\n    if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n      pairs.push([key, value]);\n      this.size = ++data.size;\n      return this;\n    }\n    data = this.__data__ = new MapCache(pairs);\n  }\n  data.set(key, value);\n  this.size = data.size;\n  return this;\n}\n\nexport default stackSet;\n","import ListCache from './_ListCache.js';\nimport stackClear from './_stackClear.js';\nimport stackDelete from './_stackDelete.js';\nimport stackGet from './_stackGet.js';\nimport stackHas from './_stackHas.js';\nimport stackSet from './_stackSet.js';\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n  var data = this.__data__ = new ListCache(entries);\n  this.size = data.size;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\nexport default Stack;\n","/**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n  var index = -1,\n      length = array == null ? 0 : array.length;\n\n  while (++index < length) {\n    if (iteratee(array[index], index, array) === false) {\n      break;\n    }\n  }\n  return array;\n}\n\nexport default arrayEach;\n","import getNative from './_getNative.js';\n\nvar defineProperty = (function() {\n  try {\n    var func = getNative(Object, 'defineProperty');\n    func({}, '', {});\n    return func;\n  } catch (e) {}\n}());\n\nexport default defineProperty;\n","import defineProperty from './_defineProperty.js';\n\n/**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction baseAssignValue(object, key, value) {\n  if (key == '__proto__' && defineProperty) {\n    defineProperty(object, key, {\n      'configurable': true,\n      'enumerable': true,\n      'value': value,\n      'writable': true\n    });\n  } else {\n    object[key] = value;\n  }\n}\n\nexport default baseAssignValue;\n","import baseAssignValue from './_baseAssignValue.js';\nimport eq from './eq.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n  var objValue = object[key];\n  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n      (value === undefined && !(key in object))) {\n    baseAssignValue(object, key, value);\n  }\n}\n\nexport default assignValue;\n","import assignValue from './_assignValue.js';\nimport baseAssignValue from './_baseAssignValue.js';\n\n/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\nfunction copyObject(source, props, object, customizer) {\n  var isNew = !object;\n  object || (object = {});\n\n  var index = -1,\n      length = props.length;\n\n  while (++index < length) {\n    var key = props[index];\n\n    var newValue = customizer\n      ? customizer(object[key], source[key], key, object, source)\n      : undefined;\n\n    if (newValue === undefined) {\n      newValue = source[key];\n    }\n    if (isNew) {\n      baseAssignValue(object, key, newValue);\n    } else {\n      assignValue(object, key, newValue);\n    }\n  }\n  return object;\n}\n\nexport default copyObject;\n","/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n  var index = -1,\n      result = Array(n);\n\n  while (++index < n) {\n    result[index] = iteratee(index);\n  }\n  return result;\n}\n\nexport default baseTimes;\n","import baseGetTag from './_baseGetTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]';\n\n/**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\nfunction baseIsArguments(value) {\n  return isObjectLike(value) && baseGetTag(value) == argsTag;\n}\n\nexport default baseIsArguments;\n","import baseIsArguments from './_baseIsArguments.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n *  else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nvar isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n  return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n    !propertyIsEnumerable.call(value, 'callee');\n};\n\nexport default isArguments;\n","/**\n * This method returns `false`.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {boolean} Returns `false`.\n * @example\n *\n * _.times(2, _.stubFalse);\n * // => [false, false]\n */\nfunction stubFalse() {\n  return false;\n}\n\nexport default stubFalse;\n","import root from './_root.js';\nimport stubFalse from './stubFalse.js';\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;\n\n/**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\nvar isBuffer = nativeIsBuffer || stubFalse;\n\nexport default isBuffer;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n  var type = typeof value;\n  length = length == null ? MAX_SAFE_INTEGER : length;\n\n  return !!length &&\n    (type == 'number' ||\n      (type != 'symbol' && reIsUint.test(value))) &&\n        (value > -1 && value % 1 == 0 && value < length);\n}\n\nexport default isIndex;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n  return typeof value == 'number' &&\n    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nexport default isLength;\n","import baseGetTag from './_baseGetTag.js';\nimport isLength from './isLength.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n    arrayTag = '[object Array]',\n    boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    errorTag = '[object Error]',\n    funcTag = '[object Function]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    objectTag = '[object Object]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]',\n    float32Tag = '[object Float32Array]',\n    float64Tag = '[object Float64Array]',\n    int8Tag = '[object Int8Array]',\n    int16Tag = '[object Int16Array]',\n    int32Tag = '[object Int32Array]',\n    uint8Tag = '[object Uint8Array]',\n    uint8ClampedTag = '[object Uint8ClampedArray]',\n    uint16Tag = '[object Uint16Array]',\n    uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n  return isObjectLike(value) &&\n    isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n}\n\nexport default baseIsTypedArray;\n","/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n  return function(value) {\n    return func(value);\n  };\n}\n\nexport default baseUnary;\n","import freeGlobal from './_freeGlobal.js';\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n  try {\n    // Use `util.types` for Node.js 10+.\n    var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n    if (types) {\n      return types;\n    }\n\n    // Legacy `process.binding('util')` for Node.js < 10.\n    return freeProcess && freeProcess.binding && freeProcess.binding('util');\n  } catch (e) {}\n}());\n\nexport default nodeUtil;\n","import baseIsTypedArray from './_baseIsTypedArray.js';\nimport baseUnary from './_baseUnary.js';\nimport nodeUtil from './_nodeUtil.js';\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\nexport default isTypedArray;\n","import baseTimes from './_baseTimes.js';\nimport isArguments from './isArguments.js';\nimport isArray from './isArray.js';\nimport isBuffer from './isBuffer.js';\nimport isIndex from './_isIndex.js';\nimport isTypedArray from './isTypedArray.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n  var isArr = isArray(value),\n      isArg = !isArr && isArguments(value),\n      isBuff = !isArr && !isArg && isBuffer(value),\n      isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n      skipIndexes = isArr || isArg || isBuff || isType,\n      result = skipIndexes ? baseTimes(value.length, String) : [],\n      length = result.length;\n\n  for (var key in value) {\n    if ((inherited || hasOwnProperty.call(value, key)) &&\n        !(skipIndexes && (\n           // Safari 9 has enumerable `arguments.length` in strict mode.\n           key == 'length' ||\n           // Node.js 0.10 has enumerable non-index properties on buffers.\n           (isBuff && (key == 'offset' || key == 'parent')) ||\n           // PhantomJS 2 has enumerable non-index properties on typed arrays.\n           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n           // Skip index properties.\n           isIndex(key, length)\n        ))) {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default arrayLikeKeys;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n  var Ctor = value && value.constructor,\n      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n  return value === proto;\n}\n\nexport default isPrototype;\n","import overArg from './_overArg.js';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = overArg(Object.keys, Object);\n\nexport default nativeKeys;\n","import isPrototype from './_isPrototype.js';\nimport nativeKeys from './_nativeKeys.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n  if (!isPrototype(object)) {\n    return nativeKeys(object);\n  }\n  var result = [];\n  for (var key in Object(object)) {\n    if (hasOwnProperty.call(object, key) && key != 'constructor') {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default baseKeys;\n","import isFunction from './isFunction.js';\nimport isLength from './isLength.js';\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n  return value != null && isLength(value.length) && !isFunction(value);\n}\n\nexport default isArrayLike;\n","import arrayLikeKeys from './_arrayLikeKeys.js';\nimport baseKeys from './_baseKeys.js';\nimport isArrayLike from './isArrayLike.js';\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n *   this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\nexport default keys;\n","import copyObject from './_copyObject.js';\nimport keys from './keys.js';\n\n/**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssign(object, source) {\n  return object && copyObject(source, keys(source), object);\n}\n\nexport default baseAssign;\n","/**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction nativeKeysIn(object) {\n  var result = [];\n  if (object != null) {\n    for (var key in Object(object)) {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default nativeKeysIn;\n","import isObject from './isObject.js';\nimport isPrototype from './_isPrototype.js';\nimport nativeKeysIn from './_nativeKeysIn.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeysIn(object) {\n  if (!isObject(object)) {\n    return nativeKeysIn(object);\n  }\n  var isProto = isPrototype(object),\n      result = [];\n\n  for (var key in object) {\n    if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n      result.push(key);\n    }\n  }\n  return result;\n}\n\nexport default baseKeysIn;\n","import arrayLikeKeys from './_arrayLikeKeys.js';\nimport baseKeysIn from './_baseKeysIn.js';\nimport isArrayLike from './isArrayLike.js';\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n *   this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n  return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n}\n\nexport default keysIn;\n","import copyObject from './_copyObject.js';\nimport keysIn from './keysIn.js';\n\n/**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssignIn(object, source) {\n  return object && copyObject(source, keysIn(source), object);\n}\n\nexport default baseAssignIn;\n","import root from './_root.js';\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined,\n    allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;\n\n/**\n * Creates a clone of  `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\nfunction cloneBuffer(buffer, isDeep) {\n  if (isDeep) {\n    return buffer.slice();\n  }\n  var length = buffer.length,\n      result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n  buffer.copy(result);\n  return result;\n}\n\nexport default cloneBuffer;\n","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction copyArray(source, array) {\n  var index = -1,\n      length = source.length;\n\n  array || (array = Array(length));\n  while (++index < length) {\n    array[index] = source[index];\n  }\n  return array;\n}\n\nexport default copyArray;\n","/**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\nfunction arrayFilter(array, predicate) {\n  var index = -1,\n      length = array == null ? 0 : array.length,\n      resIndex = 0,\n      result = [];\n\n  while (++index < length) {\n    var value = array[index];\n    if (predicate(value, index, array)) {\n      result[resIndex++] = value;\n    }\n  }\n  return result;\n}\n\nexport default arrayFilter;\n","/**\n * This method returns a new empty array.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {Array} Returns the new empty array.\n * @example\n *\n * var arrays = _.times(2, _.stubArray);\n *\n * console.log(arrays);\n * // => [[], []]\n *\n * console.log(arrays[0] === arrays[1]);\n * // => false\n */\nfunction stubArray() {\n  return [];\n}\n\nexport default stubArray;\n","import arrayFilter from './_arrayFilter.js';\nimport stubArray from './stubArray.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n  if (object == null) {\n    return [];\n  }\n  object = Object(object);\n  return arrayFilter(nativeGetSymbols(object), function(symbol) {\n    return propertyIsEnumerable.call(object, symbol);\n  });\n};\n\nexport default getSymbols;\n","import copyObject from './_copyObject.js';\nimport getSymbols from './_getSymbols.js';\n\n/**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbols(source, object) {\n  return copyObject(source, getSymbols(source), object);\n}\n\nexport default copySymbols;\n","/**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\nfunction arrayPush(array, values) {\n  var index = -1,\n      length = values.length,\n      offset = array.length;\n\n  while (++index < length) {\n    array[offset + index] = values[index];\n  }\n  return array;\n}\n\nexport default arrayPush;\n","import arrayPush from './_arrayPush.js';\nimport getPrototype from './_getPrototype.js';\nimport getSymbols from './_getSymbols.js';\nimport stubArray from './stubArray.js';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n  var result = [];\n  while (object) {\n    arrayPush(result, getSymbols(object));\n    object = getPrototype(object);\n  }\n  return result;\n};\n\nexport default getSymbolsIn;\n","import copyObject from './_copyObject.js';\nimport getSymbolsIn from './_getSymbolsIn.js';\n\n/**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbolsIn(source, object) {\n  return copyObject(source, getSymbolsIn(source), object);\n}\n\nexport default copySymbolsIn;\n","import arrayPush from './_arrayPush.js';\nimport isArray from './isArray.js';\n\n/**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction baseGetAllKeys(object, keysFunc, symbolsFunc) {\n  var result = keysFunc(object);\n  return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n}\n\nexport default baseGetAllKeys;\n","import baseGetAllKeys from './_baseGetAllKeys.js';\nimport getSymbols from './_getSymbols.js';\nimport keys from './keys.js';\n\n/**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeys(object) {\n  return baseGetAllKeys(object, keys, getSymbols);\n}\n\nexport default getAllKeys;\n","import baseGetAllKeys from './_baseGetAllKeys.js';\nimport getSymbolsIn from './_getSymbolsIn.js';\nimport keysIn from './keysIn.js';\n\n/**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeysIn(object) {\n  return baseGetAllKeys(object, keysIn, getSymbolsIn);\n}\n\nexport default getAllKeysIn;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView');\n\nexport default DataView;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar Promise = getNative(root, 'Promise');\n\nexport default Promise;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar Set = getNative(root, 'Set');\n\nexport default Set;\n","import getNative from './_getNative.js';\nimport root from './_root.js';\n\n/* Built-in method references that are verified to be native. */\nvar WeakMap = getNative(root, 'WeakMap');\n\nexport default WeakMap;\n","import DataView from './_DataView.js';\nimport Map from './_Map.js';\nimport Promise from './_Promise.js';\nimport Set from './_Set.js';\nimport WeakMap from './_WeakMap.js';\nimport baseGetTag from './_baseGetTag.js';\nimport toSource from './_toSource.js';\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]',\n    objectTag = '[object Object]',\n    promiseTag = '[object Promise]',\n    setTag = '[object Set]',\n    weakMapTag = '[object WeakMap]';\n\nvar dataViewTag = '[object DataView]';\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n    mapCtorString = toSource(Map),\n    promiseCtorString = toSource(Promise),\n    setCtorString = toSource(Set),\n    weakMapCtorString = toSource(WeakMap);\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n    (Map && getTag(new Map) != mapTag) ||\n    (Promise && getTag(Promise.resolve()) != promiseTag) ||\n    (Set && getTag(new Set) != setTag) ||\n    (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n  getTag = function(value) {\n    var result = baseGetTag(value),\n        Ctor = result == objectTag ? value.constructor : undefined,\n        ctorString = Ctor ? toSource(Ctor) : '';\n\n    if (ctorString) {\n      switch (ctorString) {\n        case dataViewCtorString: return dataViewTag;\n        case mapCtorString: return mapTag;\n        case promiseCtorString: return promiseTag;\n        case setCtorString: return setTag;\n        case weakMapCtorString: return weakMapTag;\n      }\n    }\n    return result;\n  };\n}\n\nexport default getTag;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\nfunction initCloneArray(array) {\n  var length = array.length,\n      result = new array.constructor(length);\n\n  // Add properties assigned by `RegExp#exec`.\n  if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n    result.index = array.index;\n    result.input = array.input;\n  }\n  return result;\n}\n\nexport default initCloneArray;\n","import root from './_root.js';\n\n/** Built-in value references. */\nvar Uint8Array = root.Uint8Array;\n\nexport default Uint8Array;\n","import Uint8Array from './_Uint8Array.js';\n\n/**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\nfunction cloneArrayBuffer(arrayBuffer) {\n  var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n  new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n  return result;\n}\n\nexport default cloneArrayBuffer;\n","import cloneArrayBuffer from './_cloneArrayBuffer.js';\n\n/**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\nfunction cloneDataView(dataView, isDeep) {\n  var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n  return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n}\n\nexport default cloneDataView;\n","/** Used to match `RegExp` flags from their coerced string values. */\nvar reFlags = /\\w*$/;\n\n/**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\nfunction cloneRegExp(regexp) {\n  var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n  result.lastIndex = regexp.lastIndex;\n  return result;\n}\n\nexport default cloneRegExp;\n","import Symbol from './_Symbol.js';\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\nfunction cloneSymbol(symbol) {\n  return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n}\n\nexport default cloneSymbol;\n","import cloneArrayBuffer from './_cloneArrayBuffer.js';\n\n/**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\nfunction cloneTypedArray(typedArray, isDeep) {\n  var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n  return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n}\n\nexport default cloneTypedArray;\n","import cloneArrayBuffer from './_cloneArrayBuffer.js';\nimport cloneDataView from './_cloneDataView.js';\nimport cloneRegExp from './_cloneRegExp.js';\nimport cloneSymbol from './_cloneSymbol.js';\nimport cloneTypedArray from './_cloneTypedArray.js';\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]',\n    float32Tag = '[object Float32Array]',\n    float64Tag = '[object Float64Array]',\n    int8Tag = '[object Int8Array]',\n    int16Tag = '[object Int16Array]',\n    int32Tag = '[object Int32Array]',\n    uint8Tag = '[object Uint8Array]',\n    uint8ClampedTag = '[object Uint8ClampedArray]',\n    uint16Tag = '[object Uint16Array]',\n    uint32Tag = '[object Uint32Array]';\n\n/**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneByTag(object, tag, isDeep) {\n  var Ctor = object.constructor;\n  switch (tag) {\n    case arrayBufferTag:\n      return cloneArrayBuffer(object);\n\n    case boolTag:\n    case dateTag:\n      return new Ctor(+object);\n\n    case dataViewTag:\n      return cloneDataView(object, isDeep);\n\n    case float32Tag: case float64Tag:\n    case int8Tag: case int16Tag: case int32Tag:\n    case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n      return cloneTypedArray(object, isDeep);\n\n    case mapTag:\n      return new Ctor;\n\n    case numberTag:\n    case stringTag:\n      return new Ctor(object);\n\n    case regexpTag:\n      return cloneRegExp(object);\n\n    case setTag:\n      return new Ctor;\n\n    case symbolTag:\n      return cloneSymbol(object);\n  }\n}\n\nexport default initCloneByTag;\n","import isObject from './isObject.js';\n\n/** Built-in value references. */\nvar objectCreate = Object.create;\n\n/**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\nvar baseCreate = (function() {\n  function object() {}\n  return function(proto) {\n    if (!isObject(proto)) {\n      return {};\n    }\n    if (objectCreate) {\n      return objectCreate(proto);\n    }\n    object.prototype = proto;\n    var result = new object;\n    object.prototype = undefined;\n    return result;\n  };\n}());\n\nexport default baseCreate;\n","import baseCreate from './_baseCreate.js';\nimport getPrototype from './_getPrototype.js';\nimport isPrototype from './_isPrototype.js';\n\n/**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneObject(object) {\n  return (typeof object.constructor == 'function' && !isPrototype(object))\n    ? baseCreate(getPrototype(object))\n    : {};\n}\n\nexport default initCloneObject;\n","import getTag from './_getTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]';\n\n/**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\nfunction baseIsMap(value) {\n  return isObjectLike(value) && getTag(value) == mapTag;\n}\n\nexport default baseIsMap;\n","import baseIsMap from './_baseIsMap.js';\nimport baseUnary from './_baseUnary.js';\nimport nodeUtil from './_nodeUtil.js';\n\n/* Node.js helper references. */\nvar nodeIsMap = nodeUtil && nodeUtil.isMap;\n\n/**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\nvar isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\nexport default isMap;\n","import getTag from './_getTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar setTag = '[object Set]';\n\n/**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\nfunction baseIsSet(value) {\n  return isObjectLike(value) && getTag(value) == setTag;\n}\n\nexport default baseIsSet;\n","import baseIsSet from './_baseIsSet.js';\nimport baseUnary from './_baseUnary.js';\nimport nodeUtil from './_nodeUtil.js';\n\n/* Node.js helper references. */\nvar nodeIsSet = nodeUtil && nodeUtil.isSet;\n\n/**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\nvar isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\nexport default isSet;\n","import Stack from './_Stack.js';\nimport arrayEach from './_arrayEach.js';\nimport assignValue from './_assignValue.js';\nimport baseAssign from './_baseAssign.js';\nimport baseAssignIn from './_baseAssignIn.js';\nimport cloneBuffer from './_cloneBuffer.js';\nimport copyArray from './_copyArray.js';\nimport copySymbols from './_copySymbols.js';\nimport copySymbolsIn from './_copySymbolsIn.js';\nimport getAllKeys from './_getAllKeys.js';\nimport getAllKeysIn from './_getAllKeysIn.js';\nimport getTag from './_getTag.js';\nimport initCloneArray from './_initCloneArray.js';\nimport initCloneByTag from './_initCloneByTag.js';\nimport initCloneObject from './_initCloneObject.js';\nimport isArray from './isArray.js';\nimport isBuffer from './isBuffer.js';\nimport isMap from './isMap.js';\nimport isObject from './isObject.js';\nimport isSet from './isSet.js';\nimport keys from './keys.js';\nimport keysIn from './keysIn.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n    CLONE_FLAT_FLAG = 2,\n    CLONE_SYMBOLS_FLAG = 4;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n    arrayTag = '[object Array]',\n    boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    errorTag = '[object Error]',\n    funcTag = '[object Function]',\n    genTag = '[object GeneratorFunction]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    objectTag = '[object Object]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    symbolTag = '[object Symbol]',\n    weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]',\n    float32Tag = '[object Float32Array]',\n    float64Tag = '[object Float64Array]',\n    int8Tag = '[object Int8Array]',\n    int16Tag = '[object Int16Array]',\n    int32Tag = '[object Int32Array]',\n    uint8Tag = '[object Uint8Array]',\n    uint8ClampedTag = '[object Uint8ClampedArray]',\n    uint16Tag = '[object Uint16Array]',\n    uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values supported by `_.clone`. */\nvar cloneableTags = {};\ncloneableTags[argsTag] = cloneableTags[arrayTag] =\ncloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\ncloneableTags[boolTag] = cloneableTags[dateTag] =\ncloneableTags[float32Tag] = cloneableTags[float64Tag] =\ncloneableTags[int8Tag] = cloneableTags[int16Tag] =\ncloneableTags[int32Tag] = cloneableTags[mapTag] =\ncloneableTags[numberTag] = cloneableTags[objectTag] =\ncloneableTags[regexpTag] = cloneableTags[setTag] =\ncloneableTags[stringTag] = cloneableTags[symbolTag] =\ncloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\ncloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\ncloneableTags[errorTag] = cloneableTags[funcTag] =\ncloneableTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n *  1 - Deep clone\n *  2 - Flatten inherited properties\n *  4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\nfunction baseClone(value, bitmask, customizer, key, object, stack) {\n  var result,\n      isDeep = bitmask & CLONE_DEEP_FLAG,\n      isFlat = bitmask & CLONE_FLAT_FLAG,\n      isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n  if (customizer) {\n    result = object ? customizer(value, key, object, stack) : customizer(value);\n  }\n  if (result !== undefined) {\n    return result;\n  }\n  if (!isObject(value)) {\n    return value;\n  }\n  var isArr = isArray(value);\n  if (isArr) {\n    result = initCloneArray(value);\n    if (!isDeep) {\n      return copyArray(value, result);\n    }\n  } else {\n    var tag = getTag(value),\n        isFunc = tag == funcTag || tag == genTag;\n\n    if (isBuffer(value)) {\n      return cloneBuffer(value, isDeep);\n    }\n    if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n      result = (isFlat || isFunc) ? {} : initCloneObject(value);\n      if (!isDeep) {\n        return isFlat\n          ? copySymbolsIn(value, baseAssignIn(result, value))\n          : copySymbols(value, baseAssign(result, value));\n      }\n    } else {\n      if (!cloneableTags[tag]) {\n        return object ? value : {};\n      }\n      result = initCloneByTag(value, tag, isDeep);\n    }\n  }\n  // Check for circular references and return its corresponding clone.\n  stack || (stack = new Stack);\n  var stacked = stack.get(value);\n  if (stacked) {\n    return stacked;\n  }\n  stack.set(value, result);\n\n  if (isSet(value)) {\n    value.forEach(function(subValue) {\n      result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n    });\n  } else if (isMap(value)) {\n    value.forEach(function(subValue, key) {\n      result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n    });\n  }\n\n  var keysFunc = isFull\n    ? (isFlat ? getAllKeysIn : getAllKeys)\n    : (isFlat ? keysIn : keys);\n\n  var props = isArr ? undefined : keysFunc(value);\n  arrayEach(props || value, function(subValue, key) {\n    if (props) {\n      key = subValue;\n      subValue = value[key];\n    }\n    // Recursively populate clone (susceptible to call stack limits).\n    assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n  });\n  return result;\n}\n\nexport default baseClone;\n","import baseClone from './_baseClone.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n    CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n *   if (_.isElement(value)) {\n *     return value.cloneNode(true);\n *   }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\nfunction cloneDeepWith(value, customizer) {\n  customizer = typeof customizer == 'function' ? customizer : undefined;\n  return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n}\n\nexport default cloneDeepWith;\n","import isObjectLike from './isObjectLike.js';\nimport isPlainObject from './isPlainObject.js';\n\n/**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('<body>');\n * // => false\n */\nfunction isElement(value) {\n  return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n}\n\nexport default isElement;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/config\n */\n\nimport { isPlainObject, isElement, cloneDeepWith } from 'lodash-es';\n\n/**\n * Handles a configuration dictionary.\n *\n * @typeParam Cfg A type of the configuration dictionary.\n */\nexport default class Config<Cfg> {\n\t/**\n\t * Store for the whole configuration.\n\t */\n\tprivate readonly _config: Record<string, any>;\n\n\t/**\n\t * Creates an instance of the {@link ~Config} class.\n\t *\n\t * @param configurations The initial configurations to be set. Usually, provided by the user.\n\t * @param defaultConfigurations The default configurations. Usually, provided by the system.\n\t */\n\tconstructor( configurations?: Partial<Cfg>, defaultConfigurations?: Partial<Cfg> ) {\n\t\tthis._config = {};\n\n\t\t// Set default configuration.\n\t\tif ( defaultConfigurations ) {\n\t\t\t// Clone the configuration to make sure that the properties will not be shared\n\t\t\t// between editors and make the watchdog feature work correctly.\n\t\t\tthis.define( cloneConfig( defaultConfigurations ) );\n\t\t}\n\n\t\t// Set initial configuration.\n\t\tif ( configurations ) {\n\t\t\tthis._setObjectToTarget( this._config, configurations );\n\t\t}\n\t}\n\n\t/**\n\t * Set configuration values.\n\t *\n\t * It also accepts setting a \"deep configuration\" by using dots in the name. For example, `'resize.width'` sets\n\t * the value for the `width` configuration in the `resize` subset.\n\t *\n\t * ```ts\n\t * config.set( 'resize.width', 500 );\n\t * ```\n\t *\n\t * It accepts both a name/value pair or an object, which properties and values will be used to set\n\t * configurations. See {@link #set:CONFIG_OBJECT}.\n\t *\n\t * @label KEY_VALUE\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @param value The configuration value.\n\t */\n\tpublic set<K extends string>( name: K, value: GetSubConfig<Cfg, K> ): void;\n\n\t/**\n\t * Set configuration values.\n\t *\n\t * It accepts an object, which properties and values will be used to set configurations.\n\t *\n\t * ```ts\n\t * config.set( {\n\t * \twidth: 500\n\t * \ttoolbar: {\n\t * \t\tcollapsed: true\n\t * \t}\n\t * } );\n\t *\n\t * // Equivalent to:\n\t * config.set( 'width', 500 );\n\t * config.set( 'toolbar.collapsed', true );\n\t * ```\n\t *\n\t * Passing an object as the value will amend the configuration, not replace it.\n\t *\n\t * ```ts\n\t * config.set( 'toolbar', {\n\t * \tcollapsed: true,\n\t * } );\n\t *\n\t * config.set( 'toolbar', {\n\t * \tcolor: 'red',\n\t * } );\n\t *\n\t * config.get( 'toolbar.collapsed' ); // true\n\t * config.get( 'toolbar.color' ); // 'red'\n\t * ```\n\t *\n\t * It accepts both a name/value pair or an object, which properties and values will be used to set\n\t * configurations. See {@link #set:KEY_VALUE}.\n\t *\n\t * @label CONFIG_OBJECT\n\t * @param config The configuration object from which take properties as\n\t * configuration entries. Configuration names are case-sensitive.\n\t */\n\tpublic set( config: Partial<Cfg> ): void;\n\n\tpublic set( name: string | Record<string, any>, value?: any ): void {\n\t\tthis._setToTarget( this._config, name, value );\n\t}\n\n\t/**\n\t * Does exactly the same as {@link #set:KEY_VALUE} with one exception – passed configuration extends\n\t * existing one, but does not overwrite already defined values.\n\t *\n\t * This method is supposed to be called by plugin developers to setup plugin's configurations. It would be\n\t * rarely used for other needs.\n\t *\n\t * @label KEY_VALUE\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @param value The configuration value.\n\t */\n\tpublic define<K extends string>( name: K, value: GetSubConfig<Cfg, K> ): void;\n\n\t/**\n\t * Does exactly the same as {@link #set:CONFIG_OBJECT} with one exception – passed configuration extends\n\t * existing one, but does not overwrite already defined values.\n\t *\n\t * This method is supposed to be called by plugin developers to setup plugin's configurations. It would be\n\t * rarely used for other needs.\n\t *\n\t * @label CONFIG_OBJECT\n\t * @param config The configuration object from which take properties as\n\t * configuration entries. Configuration names are case-sensitive.\n\t */\n\tpublic define( config: Partial<Cfg> ): void;\n\n\tpublic define( name: string | Record<string, any>, value?: any ): void {\n\t\tconst isDefine = true;\n\n\t\tthis._setToTarget( this._config, name, value, isDefine );\n\t}\n\n\t/**\n\t * Gets the value for a configuration entry.\n\t *\n\t * ```ts\n\t * config.get( 'name' );\n\t * ```\n\t *\n\t * Deep configurations can be retrieved by separating each part with a dot.\n\t *\n\t * ```ts\n\t * config.get( 'toolbar.collapsed' );\n\t * ```\n\t *\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @returns The configuration value or `undefined` if the configuration entry was not found.\n\t */\n\tpublic get<K extends string>( name: K ): GetSubConfig<Cfg, K> | undefined {\n\t\treturn this._getFromSource( this._config, name );\n\t}\n\n\t/**\n\t * Iterates over all top level configuration names.\n\t */\n\tpublic* names(): Iterable<string> {\n\t\tfor ( const name of Object.keys( this._config ) ) {\n\t\t\tyield name;\n\t\t}\n\t}\n\n\t/**\n\t * Saves passed configuration to the specified target (nested object).\n\t *\n\t * @param target Nested config object.\n\t * @param name The configuration name or an object from which take properties as\n\t * configuration entries. Configuration names are case-sensitive.\n\t * @param value The configuration value. Used if a name is passed.\n\t * @param isDefine Define if passed configuration should overwrite existing one.\n\t */\n\tprivate _setToTarget( target: any, name: any, value: any, isDefine: boolean = false ): void {\n\t\t// In case of an object, iterate through it and call `_setToTarget` again for each property.\n\t\tif ( isPlainObject( name ) ) {\n\t\t\tthis._setObjectToTarget( target, name, isDefine );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// The configuration name should be split into parts if it has dots. E.g. `resize.width` -> [`resize`, `width`].\n\t\tconst parts = name.split( '.' );\n\n\t\t// Take the name of the configuration out of the parts. E.g. `resize.width` -> `width`.\n\t\tname = parts.pop();\n\n\t\t// Iterate over parts to check if currently stored configuration has proper structure.\n\t\tfor ( const part of parts ) {\n\t\t\t// If there is no object for specified part then create one.\n\t\t\tif ( !isPlainObject( target[ part ] ) ) {\n\t\t\t\ttarget[ part ] = {};\n\t\t\t}\n\n\t\t\t// Nested object becomes a target.\n\t\t\ttarget = target[ part ];\n\t\t}\n\n\t\t// In case of value is an object.\n\t\tif ( isPlainObject( value ) ) {\n\t\t\t// We take care of proper config structure.\n\t\t\tif ( !isPlainObject( target[ name ] ) ) {\n\t\t\t\ttarget[ name ] = {};\n\t\t\t}\n\n\t\t\ttarget = target[ name ];\n\n\t\t\t// And iterate through this object calling `_setToTarget` again for each property.\n\t\t\tthis._setObjectToTarget( target, value, isDefine );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Do nothing if we are defining configuration for non empty name.\n\t\tif ( isDefine && typeof target[ name ] != 'undefined' ) {\n\t\t\treturn;\n\t\t}\n\n\t\ttarget[ name ] = value;\n\t}\n\n\t/**\n\t * Get specified configuration from specified source (nested object).\n\t *\n\t * @param source level of nested object.\n\t * @param name The configuration name. Configuration names are case-sensitive.\n\t * @returns The configuration value or `undefined` if the configuration entry was not found.\n\t */\n\tprivate _getFromSource( source: any, name: string ): any {\n\t\t// The configuration name should be split into parts if it has dots. E.g. `resize.width` -> [`resize`, `width`].\n\t\tconst parts = name.split( '.' );\n\n\t\t// Take the name of the configuration out of the parts. E.g. `resize.width` -> `width`.\n\t\tname = parts.pop()!;\n\n\t\t// Iterate over parts to check if currently stored configuration has proper structure.\n\t\tfor ( const part of parts ) {\n\t\t\tif ( !isPlainObject( source[ part ] ) ) {\n\t\t\t\tsource = null;\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Nested object becomes a source.\n\t\t\tsource = source[ part ];\n\t\t}\n\n\t\t// Always returns undefined for non existing configuration.\n\t\treturn source ? cloneConfig( source[ name ] ) : undefined;\n\t}\n\n\t/**\n\t * Iterates through passed object and calls {@link #_setToTarget} method with object key and value for each property.\n\t *\n\t * @param target Nested config object.\n\t * @param configuration Configuration data set\n\t * @param isDefine Defines if passed configuration is default configuration or not.\n\t */\n\tprivate _setObjectToTarget( target: any, configuration: any, isDefine?: boolean ): void {\n\t\tObject.keys( configuration ).forEach( key => {\n\t\t\tthis._setToTarget( target, key, configuration[ key ], isDefine );\n\t\t} );\n\t}\n}\n\n/**\n * Clones configuration object or value.\n */\nfunction cloneConfig<T>( source: T ): T {\n\treturn cloneDeepWith( source, leaveDOMReferences );\n}\n\n/**\n * A customized function for cloneDeepWith.\n * It will leave references to DOM Elements instead of cloning them.\n */\nfunction leaveDOMReferences( value: unknown ): unknown {\n\treturn isElement( value ) ? value : undefined;\n}\n\n/**\n * An utility type excluding primitive values and arrays from the union.\n */\nexport type OnlyObject<T> = Exclude<T, undefined | null | string | number | boolean | Array<any>>;\n\n/**\n * An utility type extracting configuration value from the given name.\n *\n * @typeParam T The type of a configuration dictionary.\n * @typeParam K The literal type of configuration name (dot-separated path).\n */\nexport type GetSubConfig<T, K> = K extends keyof T ?\n\tT[ K ] :\n\tK extends `${ infer K1 }.${ infer K2 }` ?\n\t\tK1 extends keyof T ?\n\t\t\tGetSubConfig<OnlyObject<T[ K1 ]>, K2> :\n\t\t\tunknown :\n\t\tunknown;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/isnode\n */\n\n/**\n * Checks if the object is a native DOM Node.\n */\nexport default function isNode( obj: any ): obj is Node {\n\tif ( obj ) {\n\t\tif ( obj.defaultView ) {\n\t\t\treturn obj instanceof obj.defaultView.Document;\n\t\t} else if ( obj.ownerDocument && obj.ownerDocument.defaultView ) {\n\t\t\treturn obj instanceof obj.ownerDocument.defaultView.Node;\n\t\t}\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/iswindow\n */\n\n/**\n * Checks if the object is a native DOM Window.\n */\nexport default function isWindow( obj: unknown ): obj is Window {\n\tconst stringifiedObject = Object.prototype.toString.apply( obj );\n\n\t// Returns `true` for the `window` object in browser environments.\n\tif ( stringifiedObject == '[object Window]' ) {\n\t\treturn true;\n\t}\n\n\t// Returns `true` for the `window` object in the Electron environment.\n\tif ( stringifiedObject == '[object global]' ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/emittermixin\n */\n\nimport EmitterMixin, {\n\t_getEmitterListenedTo,\n\t_setEmitterId,\n\ttype Emitter,\n\ttype CallbackOptions,\n\ttype BaseEvent,\n\ttype GetCallback\n} from '../emittermixin';\nimport uid from '../uid';\nimport isNode from './isnode';\nimport isWindow from './iswindow';\nimport type EventInfo from '../eventinfo';\nimport type { Constructor, Mixed } from '../mix';\n\nconst defaultEmitterClass = DomEmitterMixin( EmitterMixin() );\n\n/**\n * Mixin that injects the DOM events API into its host. It provides the API\n * compatible with {@link module:utils/emittermixin~Emitter}.\n *\n * This function creates a class that inherits from the provided `base` and implements `Emitter` interface.\n *\n * DOM emitter mixin is by default available in the {@link module:ui/view~View} class,\n * but it can also be mixed into any other class:\n *\n * ```ts\n * import DomEmitterMixin from '../utils/dom/emittermixin.js';\n *\n * class BaseClass { ... }\n *\n * class SomeView extends DomEmitterMixin( BaseClass ) {}\n *\n * const view = new SomeView();\n * view.listenTo( domElement, ( evt, domEvt ) => {\n * \tconsole.log( evt, domEvt );\n * } );\n * ```\n *\n * @label EXTENDS\n */\nexport default function DomEmitterMixin<Base extends Constructor<Emitter>>( base: Base ): Mixed<Base, DomEmitter>;\n\n/**\n * Mixin that injects the DOM events API into its host. It provides the API\n * compatible with {@link module:utils/emittermixin~Emitter}.\n *\n * This function creates a class that implements `Emitter` interface.\n *\n * DOM emitter mixin is by default available in the {@link module:ui/view~View} class,\n * but it can also be mixed into any other class:\n *\n * ```ts\n * import DomEmitterMixin from '../utils/dom/emittermixin.js';\n *\n * class SomeView extends DomEmitterMixin() {}\n *\n * const view = new SomeView();\n * view.listenTo( domElement, ( evt, domEvt ) => {\n * \tconsole.log( evt, domEvt );\n * } );\n * ```\n *\n * @label NO_ARGUMENTS\n */\nexport default function DomEmitterMixin(): {\n\tnew (): DomEmitter;\n\tprototype: DomEmitter;\n};\n\nexport default function DomEmitterMixin( base?: Constructor<Emitter> ): unknown {\n\tif ( !base ) {\n\t\treturn defaultEmitterClass;\n\t}\n\n\tabstract class Mixin extends base implements DomEmitter {\n\t\tpublic override listenTo<K extends keyof HTMLElementEventMap>(\n\t\t\temitter: Node | Window,\n\t\t\tevent: K,\n\t\t\tcallback: ( this: this, ev: EventInfo, event: HTMLElementEventMap[ K ] ) => void,\n\t\t\toptions?: CallbackOptions & { readonly useCapture?: boolean; readonly usePassive?: boolean }\n\t\t): void;\n\t\tpublic override listenTo<TEvent extends BaseEvent>(\n\t\t\temitter: Emitter,\n\t\t\tevent: TEvent[ 'name' ],\n\t\t\tcallback: GetCallback<TEvent>,\n\t\t\toptions?: CallbackOptions\n\t\t): void;\n\t\tpublic override listenTo(\n\t\t\temitter: Emitter | Node | Window,\n\t\t\tevent: string,\n\t\t\tcallback: ( ev: EventInfo, ...args: Array<any> ) => void,\n\t\t\toptions: CallbackOptions & { readonly useCapture?: boolean; readonly usePassive?: boolean } = {}\n\t\t): void {\n\t\t\t// Check if emitter is an instance of DOM Node. If so, use corresponding ProxyEmitter (or create one if not existing).\n\t\t\tif ( isNode( emitter ) || isWindow( emitter ) ) {\n\t\t\t\tconst proxyOptions = {\n\t\t\t\t\tcapture: !!options.useCapture,\n\t\t\t\t\tpassive: !!options.usePassive\n\t\t\t\t};\n\n\t\t\t\tconst proxyEmitter = this._getProxyEmitter( emitter, proxyOptions ) || new ProxyEmitter( emitter, proxyOptions );\n\n\t\t\t\tthis.listenTo( proxyEmitter, event, callback, options );\n\t\t\t} else {\n\t\t\t\t// Execute parent class method with Emitter (or ProxyEmitter) instance.\n\t\t\t\tsuper.listenTo( emitter, event, callback, options );\n\t\t\t}\n\t\t}\n\n\t\tpublic override stopListening(\n\t\t\temitter?: Emitter | Node | Window,\n\t\t\tevent?: string,\n\t\t\tcallback?: Function\n\t\t): void {\n\t\t\t// Check if the emitter is an instance of DOM Node. If so, forward the call to the corresponding ProxyEmitters.\n\t\t\tif ( isNode( emitter ) || isWindow( emitter ) ) {\n\t\t\t\tconst proxyEmitters = this._getAllProxyEmitters( emitter );\n\n\t\t\t\tfor ( const proxy of proxyEmitters ) {\n\t\t\t\t\tthis.stopListening( proxy, event, callback );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\t// Execute parent class method with Emitter (or ProxyEmitter) instance.\n\t\t\t\tsuper.stopListening( emitter, event, callback );\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * Retrieves ProxyEmitter instance for given DOM Node residing in this Host and given options.\n\t\t *\n\t\t * @param node DOM Node of the ProxyEmitter.\n\t\t * @param options Additional options.\n\t\t * @param options.useCapture Indicates that events of this type will be dispatched to the registered\n\t\t * listener before being dispatched to any EventTarget beneath it in the DOM tree.\n\t\t * @param options.usePassive Indicates that the function specified by listener will never call preventDefault()\n\t\t * and prevents blocking browser's main thread by this event handler.\n\t\t * @returns ProxyEmitter instance bound to the DOM Node.\n\t\t */\n\t\tprivate _getProxyEmitter(\n\t\t\tnode: Node | Window,\n\t\t\toptions: { capture: boolean; passive: boolean }\n\t\t): Emitter | null {\n\t\t\treturn _getEmitterListenedTo( this, getProxyEmitterId( node, options ) );\n\t\t}\n\n\t\t/**\n\t\t * Retrieves all the ProxyEmitter instances for given DOM Node residing in this Host.\n\t\t *\n\t\t * @param node DOM Node of the ProxyEmitter.\n\t\t */\n\t\tprivate _getAllProxyEmitters( node: Node | Window ): Array<ProxyEmitter> {\n\t\t\treturn [\n\t\t\t\t{ capture: false, passive: false },\n\t\t\t\t{ capture: false, passive: true },\n\t\t\t\t{ capture: true, passive: false },\n\t\t\t\t{ capture: true, passive: true }\n\t\t\t].map( options => this._getProxyEmitter( node, options ) ).filter( proxy => !!proxy ) as any;\n\t\t}\n\t}\n\n\treturn Mixin;\n}\n\n// Backward compatibility with `mix`\n( [\n\t'_getProxyEmitter', '_getAllProxyEmitters',\n\t'on', 'once', 'off', 'listenTo',\n\t'stopListening', 'fire', 'delegate', 'stopDelegating',\n\t'_addEventListener', '_removeEventListener'\n] ).forEach( key => {\n\t( DomEmitterMixin as any )[ key ] = ( defaultEmitterClass.prototype as any )[ key ];\n} );\n\n/**\n * Creates a ProxyEmitter instance. Such an instance is a bridge between a DOM Node firing events\n * and any Host listening to them. It is backwards compatible with {@link module:utils/emittermixin~Emitter#on}.\n * There is a separate instance for each combination of modes (useCapture & usePassive). The mode is concatenated with\n * UID stored in HTMLElement to give each instance unique identifier.\n *\n *                                  listenTo( click, ... )\n *                    +-----------------------------------------+\n *                    |              stopListening( ... )       |\n *     +----------------------------+                           |             addEventListener( click, ... )\n *     | Host                       |                           |   +---------------------------------------------+\n *     +----------------------------+                           |   |       removeEventListener( click, ... )     |\n *     | _listeningTo: {            |                +----------v-------------+                                   |\n *     |   UID+mode: {              |                | ProxyEmitter           |                                   |\n *     |     emitter: ProxyEmitter, |                +------------------------+                      +------------v----------+\n *     |     callbacks: {           |                | events: {              |                      | Node (HTMLElement)    |\n *     |       click: [ callbacks ] |                |   click: [ callbacks ] |                      +-----------------------+\n *     |     }                      |                | },                     |                      | data-ck-expando: UID  |\n *     |   }                        |                | _domNode: Node,        |                      +-----------------------+\n *     | }                          |                | _domListeners: {},     |                                   |\n *     | +------------------------+ |                | _emitterId: UID+mode   |                                   |\n *     | | DomEmitterMixin        | |                +--------------^---------+                                   |\n *     | +------------------------+ |                           |   |                                             |\n *     +--------------^-------------+                           |   +---------------------------------------------+\n *                    |                                         |                  click (DOM Event)\n *                    +-----------------------------------------+\n *                                fire( click, DOM Event )\n */\nclass ProxyEmitter extends EmitterMixin() {\n\tprivate readonly _domNode: Node | Window;\n\tprivate readonly _options: { capture: boolean; passive: boolean };\n\n\t/**\n\t * @param node DOM Node that fires events.\n\t * @param options Additional options.\n\t * @param options.useCapture Indicates that events of this type will be dispatched to the registered\n\t * listener before being dispatched to any EventTarget beneath it in the DOM tree.\n\t * @param options.usePassive Indicates that the function specified by listener will never call preventDefault()\n\t * and prevents blocking browser's main thread by this event handler.\n\t */\n\tconstructor(\n\t\tnode: Node | Window,\n\t\toptions: { capture: boolean; passive: boolean }\n\t) {\n\t\tsuper();\n\n\t\t// Set emitter ID to match DOM Node \"expando\" property.\n\t\t_setEmitterId( this, getProxyEmitterId( node, options ) );\n\n\t\t// Remember the DOM Node this ProxyEmitter is bound to.\n\t\tthis._domNode = node;\n\n\t\t// And given options.\n\t\tthis._options = options;\n\t}\n\n\t/**\n\t * Collection of native DOM listeners.\n\t */\n\tprivate _domListeners?: {\n\t\t[ event: string ]: {\n\t\t\t( domEvent: unknown ): void;\n\t\t\tremoveListener(): void;\n\t\t};\n\t};\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired.\n\t *\n\t * It attaches a native DOM listener to the DOM Node. When fired,\n\t * a corresponding Emitter event will also fire with DOM Event object as an argument.\n\t *\n\t * **Note**: This is automatically called by the\n\t * {@link module:utils/emittermixin~Emitter#listenTo `Emitter#listenTo()`}.\n\t *\n\t * @param event The name of the event.\n\t */\n\tpublic attach( event: string ): void {\n\t\t// If the DOM Listener for given event already exist it is pointless\n\t\t// to attach another one.\n\t\tif ( this._domListeners && this._domListeners[ event ] ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst domListener = this._createDomListener( event );\n\n\t\t// Attach the native DOM listener to DOM Node.\n\t\tthis._domNode.addEventListener( event, domListener, this._options );\n\n\t\tif ( !this._domListeners ) {\n\t\t\tthis._domListeners = {};\n\t\t}\n\n\t\t// Store the native DOM listener in this ProxyEmitter. It will be helpful\n\t\t// when stopping listening to the event.\n\t\tthis._domListeners[ event ] = domListener;\n\t}\n\n\t/**\n\t * Stops executing the callback on the given event.\n\t *\n\t * **Note**: This is automatically called by the\n\t * {@link module:utils/emittermixin~Emitter#stopListening `Emitter#stopListening()`}.\n\t *\n\t * @param event The name of the event.\n\t */\n\tpublic detach( event: string ): void {\n\t\tlet events;\n\n\t\t// Remove native DOM listeners which are orphans. If no callbacks\n\t\t// are awaiting given event, detach native DOM listener from DOM Node.\n\t\t// See: {@link attach}.\n\n\t\tif ( this._domListeners![ event ] && ( !( events = ( this as any )._events![ event ] ) || !events.callbacks.length ) ) {\n\t\t\tthis._domListeners![ event ].removeListener();\n\t\t}\n\t}\n\n\t/**\n\t * Adds callback to emitter for given event.\n\t *\n\t * @internal\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tpublic _addEventListener<TEvent extends BaseEvent>(\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions: CallbackOptions\n\t): void {\n\t\tthis.attach( event );\n\t\t( EmitterMixin().prototype as any )._addEventListener.call( this, event, callback, options );\n\t}\n\n\t/**\n\t * Removes callback from emitter for given event.\n\t *\n\t * @internal\n\t * @param event The name of the event.\n\t * @param callback The function to stop being called.\n\t */\n\tpublic _removeEventListener( event: string, callback: Function ) {\n\t\t( EmitterMixin().prototype as any )._removeEventListener.call( this, event, callback );\n\t\tthis.detach( event );\n\t}\n\n\t/**\n\t * Creates a native DOM listener callback. When the native DOM event\n\t * is fired it will fire corresponding event on this ProxyEmitter.\n\t * Note: A native DOM Event is passed as an argument.\n\t *\n\t * @param event The name of the event.\n\t * @returns The DOM listener callback.\n\t */\n\tprivate _createDomListener( event: string ) {\n\t\tconst domListener = ( domEvt: unknown ) => {\n\t\t\tthis.fire( event, domEvt );\n\t\t};\n\n\t\t// Supply the DOM listener callback with a function that will help\n\t\t// detach it from the DOM Node, when it is no longer necessary.\n\t\t// See: {@link detach}.\n\t\tdomListener.removeListener = () => {\n\t\t\tthis._domNode.removeEventListener( event, domListener, this._options );\n\t\t\tdelete this._domListeners![ event ];\n\t\t};\n\n\t\treturn domListener;\n\t}\n}\n\n/**\n * Gets an unique DOM Node identifier. The identifier will be set if not defined.\n *\n * @returns UID for given DOM Node.\n */\nfunction getNodeUID( node: any ): string {\n\treturn node[ 'data-ck-expando' ] || ( node[ 'data-ck-expando' ] = uid() );\n}\n\n/**\n * Gets id of the ProxyEmitter for the given node.\n */\nfunction getProxyEmitterId( node: Node | Window, options: { [ option: string ]: any } ): string {\n\tlet id = getNodeUID( node );\n\n\tfor ( const option of Object.keys( options ).sort() ) {\n\t\tif ( options[ option ] ) {\n\t\t\tid += '-' + option;\n\t\t}\n\t}\n\n\treturn id;\n}\n\nexport interface DomEventMap extends HTMLElementEventMap, WindowEventMap {\n}\n\n/**\n * Interface representing classes which mix in {@link module:utils/dom/emittermixin~DomEmitterMixin}.\n *\n * Can be easily implemented by a class by mixing the {@link module:utils/dom/emittermixin~DomEmitterMixin} mixin.\n *\n * ```ts\n * class MyClass extends DomEmitterMixin( OtherBaseClass ) {\n * \t// This class now implements the `Emitter` interface.\n * }\n * ```\n */\nexport interface DomEmitter extends Emitter {\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired in a specific Emitter or DOM Node.\n\t * It is backwards compatible with {@link module:utils/emittermixin~Emitter#listenTo}.\n\t *\n\t * @label HTML_EMITTER\n\t * @param emitter The object that fires the event.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t * @param options.useCapture Indicates that events of this type will be dispatched to the registered\n\t * listener before being dispatched to any EventTarget beneath it in the DOM tree.\n\t * @param options.usePassive Indicates that the function specified by listener will never call preventDefault()\n\t * and prevents blocking browser's main thread by this event handler.\n\t */\n\tlistenTo<K extends keyof DomEventMap>(\n\t\temitter: Node | Window,\n\t\tevent: K,\n\t\tcallback: ( this: this, ev: EventInfo, event: DomEventMap[ K ] ) => void,\n\t\toptions?: CallbackOptions & { readonly useCapture?: boolean; readonly usePassive?: boolean }\n\t): void;\n\n\t/**\n\t * Registers a callback function to be executed when an event is fired in a specific (emitter) object.\n\t *\n\t * Events can be grouped in namespaces using `:`.\n\t * When namespaced event is fired, it additionally fires all callbacks for that namespace.\n\t *\n\t * ```ts\n\t * // myEmitter.on( ... ) is a shorthand for myEmitter.listenTo( myEmitter, ... ).\n\t * myEmitter.on( 'myGroup', genericCallback );\n\t * myEmitter.on( 'myGroup:myEvent', specificCallback );\n\t *\n\t * // genericCallback is fired.\n\t * myEmitter.fire( 'myGroup' );\n\t * // both genericCallback and specificCallback are fired.\n\t * myEmitter.fire( 'myGroup:myEvent' );\n\t * // genericCallback is fired even though there are no callbacks for \"foo\".\n\t * myEmitter.fire( 'myGroup:foo' );\n\t * ```\n\t *\n\t * An event callback can {@link module:utils/eventinfo~EventInfo#stop stop the event} and\n\t * set the {@link module:utils/eventinfo~EventInfo#return return value} of the {@link #fire} method.\n\t *\n\t * @label DOM_EMITTER\n\t * @typeParam TEvent The type describing the event. See {@link module:utils/emittermixin~BaseEvent}.\n\t * @param emitter The object that fires the event.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t */\n\tlistenTo<TEvent extends BaseEvent>(\n\t\temitter: Emitter,\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: GetCallback<TEvent>,\n\t\toptions?: CallbackOptions\n\t): void;\n\n\t/**\n\t * Stops listening for events. It can be used at different levels:\n\t * It is backwards compatible with {@link module:utils/emittermixin~Emitter#listenTo}.\n\t *\n\t * * To stop listening to a specific callback.\n\t * * To stop listening to a specific event.\n\t * * To stop listening to all events fired by a specific object.\n\t * * To stop listening to all events fired by all objects.\n\t *\n\t * @label DOM_STOP\n\t * @param emitter The object to stop listening to.\n\t * If omitted, stops it for all objects.\n\t * @param event (Requires the `emitter`) The name of the event to stop listening to. If omitted, stops it\n\t * for all events from `emitter`.\n\t * @param callback (Requires the `event`) The function to be removed from the call list for the given\n\t * `event`.\n\t */\n\tstopListening( emitter?: Emitter | Node | Window, event?: string, callback?: Function ): void;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals window, document */\n\n/**\n * @module utils/dom/global\n */\n\n// This interface exists to make our API pages more readable.\n/**\n * A helper (module) giving an access to the global DOM objects such as `window` and `document`.\n */\nexport interface GlobalType {\n\treadonly window: Window & typeof globalThis;\n\treadonly document: Document;\n}\n\n/**\n * A helper (module) giving an access to the global DOM objects such as `window` and\n * `document`. Accessing these objects using this helper allows easy and bulletproof\n * testing, i.e. stubbing native properties:\n *\n * ```ts\n * import { global } from 'ckeditor5/utils';\n *\n * // This stub will work for any code using global module.\n * testUtils.sinon.stub( global, 'window', {\n * \tinnerWidth: 10000\n * } );\n *\n * console.log( global.window.innerWidth );\n * ```\n */\nlet globalVar: GlobalType; // named globalVar instead of global: https://github.com/ckeditor/ckeditor5/issues/12971\n\n// In some environments window and document API might not be available.\ntry {\n\tglobalVar = { window, document };\n} catch ( e ) {\n\t// It's not possible to mock a window object to simulate lack of a window object without writing extremely convoluted code.\n\t/* istanbul ignore next -- @preserve */\n\n\t// Let's cast it to not change module's API.\n\t// We only handle this so loading editor in environments without window and document doesn't fail.\n\t// For better DX we shouldn't introduce mixed types and require developers to check the type manually.\n\t// This module should not be used on purpose in any environment outside browser.\n\tglobalVar = { window: {} as any, document: {} as any };\n}\n\nexport default globalVar;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals Node */\n\n/**\n * @module utils/dom/getancestors\n */\n\n/**\n * Returns all ancestors of given DOM node, starting from the top-most (root). Includes the given node itself. If the\n * node is a part of `DocumentFragment` that `DocumentFragment` will be returned. In contrary, if the node is\n * appended to a `Document`, that `Document` will not be returned (algorithms operating on DOM tree care for `Document#documentElement`\n * at most, which will be returned).\n *\n * @param node DOM node.\n * @returns Array of given `node` parents.\n */\nexport default function getAncestors( node: Node ): Array<Node> {\n\tconst nodes: Array<Node> = [];\n\tlet currentNode: Node | null = node;\n\n\t// We are interested in `Node`s `DocumentFragment`s only.\n\twhile ( currentNode && currentNode.nodeType != Node.DOCUMENT_NODE ) {\n\t\tnodes.unshift( currentNode );\n\t\tcurrentNode = currentNode.parentNode;\n\t}\n\n\treturn nodes;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/istext\n */\n\n/**\n * Checks if the object is a native DOM Text node.\n */\nexport default function isText( obj: unknown ): obj is Text {\n\treturn Object.prototype.toString.call( obj ) == '[object Text]';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/isrange\n */\n\n/**\n * Checks if the object is a native DOM Range.\n */\nexport default function isRange( obj: unknown ): obj is Range {\n\treturn Object.prototype.toString.apply( obj ) == '[object Range]';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/getborderwidths\n */\n\n/**\n * Returns an object containing CSS border widths of a specified HTML element.\n *\n * @param element An element which has CSS borders.\n * @returns An object containing `top`, `left`, `right` and `bottom` properties\n * with numerical values of the `border-[top,left,right,bottom]-width` CSS styles.\n */\nexport default function getBorderWidths( element: HTMLElement ): BorderWidths {\n\t// Call getComputedStyle on the window the element document belongs to.\n\tconst style = element.ownerDocument.defaultView!.getComputedStyle( element );\n\n\treturn {\n\t\ttop: parseInt( style.borderTopWidth, 10 ),\n\t\tright: parseInt( style.borderRightWidth, 10 ),\n\t\tbottom: parseInt( style.borderBottomWidth, 10 ),\n\t\tleft: parseInt( style.borderLeftWidth, 10 )\n\t};\n}\n\n/**\n * An object describing widths of `HTMLElement` borders.\n*/\nexport interface BorderWidths {\n\ttop: number;\n\tright: number;\n\tbottom: number;\n\tleft: number;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/rect\n */\n\nimport isRange from './isrange';\nimport isWindow from './iswindow';\nimport getBorderWidths from './getborderwidths';\nimport isText from './istext';\n\nconst rectProperties: Array<keyof RectLike> = [ 'top', 'right', 'bottom', 'left', 'width', 'height' ];\n\n/**\n * A helper class representing a `ClientRect` object, e.g. value returned by\n * the native `object.getBoundingClientRect()` method. Provides a set of methods\n * to manipulate the rect and compare it against other rect instances.\n */\nexport default class Rect {\n\t/**\n\t * The \"top\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic top!: number;\n\n\t/**\n\t * The \"right\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic right!: number;\n\n\t/**\n\t * The \"bottom\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic bottom!: number;\n\n\t/**\n\t * The \"left\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic left!: number;\n\n\t/**\n\t * The \"width\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic width!: number;\n\n\t/**\n\t * The \"height\" value of the rect.\n\t *\n\t * @readonly\n\t */\n\tpublic height!: number;\n\n\t/**\n\t * The object this rect is for.\n\t *\n\t * @readonly\n\t */\n\tprivate _source!: RectSource;\n\n\t/**\n\t * Creates an instance of rect.\n\t *\n\t * ```ts\n\t * // Rect of an HTMLElement.\n\t * const rectA = new Rect( document.body );\n\t *\n\t * // Rect of a DOM Range.\n\t * const rectB = new Rect( document.getSelection().getRangeAt( 0 ) );\n\t *\n\t * // Rect of a window (web browser viewport).\n\t * const rectC = new Rect( window );\n\t *\n\t * // Rect out of an object.\n\t * const rectD = new Rect( { top: 0, right: 10, bottom: 10, left: 0, width: 10, height: 10 } );\n\t *\n\t * // Rect out of another Rect instance.\n\t * const rectE = new Rect( rectD );\n\t *\n\t * // Rect out of a ClientRect.\n\t * const rectF = new Rect( document.body.getClientRects().item( 0 ) );\n\t * ```\n\t *\n\t * **Note**: By default a rect of an HTML element includes its CSS borders and scrollbars (if any)\n\t * ant the rect of a `window` includes scrollbars too. Use {@link #excludeScrollbarsAndBorders}\n\t * to get the inner part of the rect.\n\t *\n\t * @param source A source object to create the rect.\n\t */\n\tconstructor( source: RectSource ) {\n\t\tconst isSourceRange = isRange( source );\n\n\t\tObject.defineProperty( this, '_source', {\n\t\t\t// If the source is a Rect instance, copy it's #_source.\n\t\t\tvalue: ( source as any )._source || source,\n\t\t\twritable: true,\n\t\t\tenumerable: false\n\t\t} );\n\n\t\tif ( isDomElement( source ) || isSourceRange ) {\n\t\t\t// The `Rect` class depends on `getBoundingClientRect` and `getClientRects` DOM methods. If the source\n\t\t\t// of a rect in an HTML element or a DOM range but it does not belong to any rendered DOM tree, these methods\n\t\t\t// will fail to obtain the geometry and the rect instance makes little sense to the features using it.\n\t\t\t// To get rid of this warning make sure the source passed to the constructor is a descendant of `window.document.body`.\n\t\t\t// @if CK_DEBUG // const sourceNode = isSourceRange ? source.startContainer : source;\n\t\t\t// @if CK_DEBUG // if ( !sourceNode.ownerDocument || !sourceNode.ownerDocument.body.contains( sourceNode ) ) {\n\t\t\t// @if CK_DEBUG // \tconsole.warn(\n\t\t\t// @if CK_DEBUG // \t\t'rect-source-not-in-dom: The source of this rect does not belong to any rendered DOM tree.',\n\t\t\t// @if CK_DEBUG // \t\t{ source } );\n\t\t\t// @if CK_DEBUG // }\n\n\t\t\tif ( isSourceRange ) {\n\t\t\t\tconst rangeRects = Rect.getDomRangeRects( source );\n\t\t\t\tcopyRectProperties( this, Rect.getBoundingRect( rangeRects )! );\n\t\t\t} else {\n\t\t\t\tcopyRectProperties( this, source.getBoundingClientRect() );\n\t\t\t}\n\t\t} else if ( isWindow( source ) ) {\n\t\t\tconst { innerWidth, innerHeight } = source;\n\n\t\t\tcopyRectProperties( this, {\n\t\t\t\ttop: 0,\n\t\t\t\tright: innerWidth,\n\t\t\t\tbottom: innerHeight,\n\t\t\t\tleft: 0,\n\t\t\t\twidth: innerWidth,\n\t\t\t\theight: innerHeight\n\t\t\t} );\n\t\t} else {\n\t\t\tcopyRectProperties( this, source );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a clone of the rect.\n\t *\n\t * @returns A cloned rect.\n\t */\n\tpublic clone(): Rect {\n\t\treturn new Rect( this );\n\t}\n\n\t/**\n\t * Moves the rect so that its upper–left corner lands in desired `[ x, y ]` location.\n\t *\n\t * @param x Desired horizontal location.\n\t * @param y Desired vertical location.\n\t * @returns A rect which has been moved.\n\t */\n\tpublic moveTo( x: number, y: number ): this {\n\t\tthis.top = y;\n\t\tthis.right = x + this.width;\n\t\tthis.bottom = y + this.height;\n\t\tthis.left = x;\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Moves the rect in–place by a dedicated offset.\n\t *\n\t * @param x A horizontal offset.\n\t * @param y A vertical offset\n\t * @returns A rect which has been moved.\n\t */\n\tpublic moveBy( x: number, y: number ): this {\n\t\tthis.top += y;\n\t\tthis.right += x;\n\t\tthis.left += x;\n\t\tthis.bottom += y;\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Returns a new rect a a result of intersection with another rect.\n\t */\n\tpublic getIntersection( anotherRect: Rect ): Rect | null {\n\t\tconst rect = {\n\t\t\ttop: Math.max( this.top, anotherRect.top ),\n\t\t\tright: Math.min( this.right, anotherRect.right ),\n\t\t\tbottom: Math.min( this.bottom, anotherRect.bottom ),\n\t\t\tleft: Math.max( this.left, anotherRect.left ),\n\t\t\twidth: 0,\n\t\t\theight: 0\n\t\t};\n\n\t\trect.width = rect.right - rect.left;\n\t\trect.height = rect.bottom - rect.top;\n\n\t\tif ( rect.width < 0 || rect.height < 0 ) {\n\t\t\treturn null;\n\t\t} else {\n\t\t\treturn new Rect( rect );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the area of intersection with another rect.\n\t *\n\t * @returns Area of intersection.\n\t */\n\tpublic getIntersectionArea( anotherRect: Rect ): number {\n\t\tconst rect = this.getIntersection( anotherRect );\n\n\t\tif ( rect ) {\n\t\t\treturn rect.getArea();\n\t\t} else {\n\t\t\treturn 0;\n\t\t}\n\t}\n\n\t/**\n\t * Returns the area of the rect.\n\t */\n\tpublic getArea(): number {\n\t\treturn this.width * this.height;\n\t}\n\n\t/**\n\t * Returns a new rect, a part of the original rect, which is actually visible to the user,\n\t * e.g. an original rect cropped by parent element rects which have `overflow` set in CSS\n\t * other than `\"visible\"`.\n\t *\n\t * If there's no such visible rect, which is when the rect is limited by one or many of\n\t * the ancestors, `null` is returned.\n\t *\n\t * @returns A visible rect instance or `null`, if there's none.\n\t */\n\tpublic getVisible(): Rect | null {\n\t\tconst source: RectSource & { parentNode?: Node | null; commonAncestorContainer?: Node | null } = this._source;\n\t\tlet visibleRect = this.clone();\n\n\t\t// There's no ancestor to crop <body> with the overflow.\n\t\tif ( !isBody( source ) ) {\n\t\t\tlet parent = source.parentNode || source.commonAncestorContainer;\n\n\t\t\t// Check the ancestors all the way up to the <body>.\n\t\t\twhile ( parent && !isBody( parent ) ) {\n\t\t\t\tconst parentRect = new Rect( parent as HTMLElement );\n\t\t\t\tconst intersectionRect = visibleRect.getIntersection( parentRect );\n\n\t\t\t\tif ( intersectionRect ) {\n\t\t\t\t\tif ( intersectionRect.getArea() < visibleRect.getArea() ) {\n\t\t\t\t\t\t// Reduce the visible rect to the intersection.\n\t\t\t\t\t\tvisibleRect = intersectionRect;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// There's no intersection, the rect is completely invisible.\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tparent = parent.parentNode;\n\t\t\t}\n\t\t}\n\n\t\treturn visibleRect;\n\t}\n\n\t/**\n\t * Checks if all property values ({@link #top}, {@link #left}, {@link #right},\n\t * {@link #bottom}, {@link #width} and {@link #height}) are the equal in both rect\n\t * instances.\n\t *\n\t * @param anotherRect A rect instance to compare with.\n\t * @returns `true` when Rects are equal. `false` otherwise.\n\t */\n\tpublic isEqual( anotherRect: Rect ): boolean {\n\t\tfor ( const prop of rectProperties ) {\n\t\t\tif ( this[ prop ] !== anotherRect[ prop ] ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks whether a rect fully contains another rect instance.\n\t *\n\t * @param anotherRect\n\t * @returns `true` if contains, `false` otherwise.\n\t */\n\tpublic contains( anotherRect: Rect ): boolean {\n\t\tconst intersectRect = this.getIntersection( anotherRect );\n\n\t\treturn !!( intersectRect && intersectRect.isEqual( anotherRect ) );\n\t}\n\n\t/**\n\t * Excludes scrollbars and CSS borders from the rect.\n\t *\n\t * * Borders are removed when {@link #_source} is an HTML element.\n\t * * Scrollbars are excluded from HTML elements and the `window`.\n\t *\n\t * @returns A rect which has been updated.\n\t */\n\tpublic excludeScrollbarsAndBorders(): this {\n\t\tconst source = this._source as ( HTMLElement | Window );\n\t\tlet scrollBarWidth, scrollBarHeight, direction;\n\n\t\tif ( isWindow( source ) ) {\n\t\t\tscrollBarWidth = source.innerWidth - source.document.documentElement.clientWidth;\n\t\t\tscrollBarHeight = source.innerHeight - source.document.documentElement.clientHeight;\n\t\t\tdirection = source.getComputedStyle( source.document.documentElement ).direction;\n\t\t} else {\n\t\t\tconst borderWidths = getBorderWidths( source );\n\n\t\t\tscrollBarWidth = source.offsetWidth - source.clientWidth - borderWidths.left - borderWidths.right;\n\t\t\tscrollBarHeight = source.offsetHeight - source.clientHeight - borderWidths.top - borderWidths.bottom;\n\t\t\tdirection = source.ownerDocument.defaultView!.getComputedStyle( source ).direction;\n\n\t\t\tthis.left += borderWidths.left;\n\t\t\tthis.top += borderWidths.top;\n\t\t\tthis.right -= borderWidths.right;\n\t\t\tthis.bottom -= borderWidths.bottom;\n\t\t\tthis.width = this.right - this.left;\n\t\t\tthis.height = this.bottom - this.top;\n\t\t}\n\n\t\tthis.width -= scrollBarWidth;\n\n\t\tif ( direction === 'ltr' ) {\n\t\t\tthis.right -= scrollBarWidth;\n\t\t} else {\n\t\t\tthis.left += scrollBarWidth;\n\t\t}\n\n\t\tthis.height -= scrollBarHeight;\n\t\tthis.bottom -= scrollBarHeight;\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Returns an array of rects of the given native DOM Range.\n\t *\n\t * @param range A native DOM range.\n\t * @returns DOM Range rects.\n\t */\n\tpublic static getDomRangeRects( range: Range ): Array<Rect> {\n\t\tconst rects: Array<Rect> = [];\n\t\t// Safari does not iterate over ClientRectList using for...of loop.\n\t\tconst clientRects = Array.from( range.getClientRects() );\n\n\t\tif ( clientRects.length ) {\n\t\t\tfor ( const rect of clientRects ) {\n\t\t\t\trects.push( new Rect( rect ) );\n\t\t\t}\n\t\t}\n\t\t// If there's no client rects for the Range, use parent container's bounding rect\n\t\t// instead and adjust rect's width to simulate the actual geometry of such range.\n\t\t// https://github.com/ckeditor/ckeditor5-utils/issues/153\n\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/317\n\t\telse {\n\t\t\tlet startContainer = range.startContainer;\n\n\t\t\tif ( isText( startContainer ) ) {\n\t\t\t\tstartContainer = startContainer.parentNode!;\n\t\t\t}\n\n\t\t\tconst rect = new Rect( ( startContainer as Element ).getBoundingClientRect() );\n\t\t\trect.right = rect.left;\n\t\t\trect.width = 0;\n\n\t\t\trects.push( rect );\n\t\t}\n\n\t\treturn rects;\n\t}\n\n\t/**\n\t * Returns a bounding rectangle that contains all the given `rects`.\n\t *\n\t * @param rects A list of rectangles that should be contained in the result rectangle.\n\t * @returns Bounding rectangle or `null` if no `rects` were given.\n\t */\n\tpublic static getBoundingRect( rects: Iterable<Rect> ): Rect | null {\n\t\tconst boundingRectData = {\n\t\t\tleft: Number.POSITIVE_INFINITY,\n\t\t\ttop: Number.POSITIVE_INFINITY,\n\t\t\tright: Number.NEGATIVE_INFINITY,\n\t\t\tbottom: Number.NEGATIVE_INFINITY,\n\t\t\twidth: 0,\n\t\t\theight: 0\n\t\t};\n\t\tlet rectangleCount = 0;\n\n\t\tfor ( const rect of rects ) {\n\t\t\trectangleCount++;\n\n\t\t\tboundingRectData.left = Math.min( boundingRectData.left, rect.left );\n\t\t\tboundingRectData.top = Math.min( boundingRectData.top, rect.top );\n\t\t\tboundingRectData.right = Math.max( boundingRectData.right, rect.right );\n\t\t\tboundingRectData.bottom = Math.max( boundingRectData.bottom, rect.bottom );\n\t\t}\n\n\t\tif ( rectangleCount == 0 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tboundingRectData.width = boundingRectData.right - boundingRectData.left;\n\t\tboundingRectData.height = boundingRectData.bottom - boundingRectData.top;\n\n\t\treturn new Rect( boundingRectData );\n\t}\n}\n\n/**\n * A source of {@link module:utils/dom/rect~Rect}.\n */\nexport type RectSource = HTMLElement | Range | Window | RectLike;\n\n/**\n * An object that describes properties of `ClientRect` object.\n */\nexport interface RectLike {\n\treadonly top: number;\n\treadonly right: number;\n\treadonly bottom: number;\n\treadonly left: number;\n\treadonly width: number;\n\treadonly height: number;\n}\n\n/**\n * Acquires all the rect properties from the passed source.\n */\nfunction copyRectProperties( rect: Rect, source: RectLike ): void {\n\tfor ( const p of rectProperties ) {\n\t\trect[ p ] = source[ p ];\n\t}\n}\n\n/**\n * Checks if provided object is a <body> HTML element.\n */\nfunction isBody( value: unknown ): value is HTMLBodyElement {\n\tif ( !isDomElement( value ) ) {\n\t\treturn false;\n\t}\n\n\treturn value === value.ownerDocument.body;\n}\n\n/**\n * Checks if provided object \"looks like\" a DOM Element and has API required by `Rect` class.\n */\nfunction isDomElement( value: any ): value is Element {\n\t// Note: earlier we used `isElement()` from lodash library, however that function is less performant because\n\t// it makes complicated checks to make sure that given value is a DOM element.\n\treturn value !== null && typeof value === 'object' && value.nodeType === 1 && typeof value.getBoundingClientRect === 'function';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/resizeobserver\n */\n\nimport global from './global';\n\n/**\n * A helper class which instances allow performing custom actions when native DOM elements are resized.\n *\n * ```ts\n * const editableElement = editor.editing.view.getDomRoot();\n *\n * const observer = new ResizeObserver( editableElement, entry => {\n * \tconsole.log( 'The editable element has been resized in DOM.' );\n * \tconsole.log( entry.target ); // -> editableElement\n * \tconsole.log( entry.contentRect.width ); // -> e.g. '423px'\n * } );\n * ```\n *\n * It uses the [native DOM resize observer](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver)\n * under the hood.\n */\nexport default class ResizeObserver {\n\t/**\n\t * The element observed by this observer.\n\t */\n\tprivate readonly _element: Element;\n\n\t/**\n\t * The callback executed each time {@link #_element} is resized.\n\t */\n\tprivate readonly _callback: ( entry: ResizeObserverEntry ) => void;\n\n\t/**\n\t * The single native observer instance shared across all {@link module:utils/dom/resizeobserver~ResizeObserver} instances.\n\t */\n\tprivate static _observerInstance: InstanceType<typeof global.window.ResizeObserver> | null = null;\n\n\t/**\n\t * A mapping of native DOM elements and their callbacks shared across all\n\t * {@link module:utils/dom/resizeobserver~ResizeObserver} instances.\n\t */\n\tprivate static _elementCallbacks: Map<Element, Set<( entry: ResizeObserverEntry ) => void>> | null = null;\n\n\t/**\n\t * Creates an instance of the `ResizeObserver` class.\n\t *\n\t * @param element A DOM element that is to be observed for resizing. Note that\n\t * the element must be visible (i.e. not detached from DOM) for the observer to work.\n\t * @param callback A function called when the observed element was resized. It passes\n\t * the [`ResizeObserverEntry`](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserverEntry)\n\t * object with information about the resize event.\n\t */\n\tconstructor( element: Element, callback: ( entry: ResizeObserverEntry ) => void ) {\n\t\t// **Note**: For the maximum performance, this class ensures only a single instance of the native\n\t\t// observer is used no matter how many instances of this class were created.\n\t\tif ( !ResizeObserver._observerInstance ) {\n\t\t\tResizeObserver._createObserver();\n\t\t}\n\n\t\tthis._element = element;\n\t\tthis._callback = callback;\n\n\t\tResizeObserver._addElementCallback( element, callback );\n\t\tResizeObserver._observerInstance!.observe( element );\n\t}\n\n\t/**\n\t * Destroys the observer which disables the `callback` passed to the {@link #constructor}.\n\t */\n\tpublic destroy(): void {\n\t\tResizeObserver._deleteElementCallback( this._element, this._callback );\n\t}\n\n\t/**\n\t * Registers a new resize callback for the DOM element.\n\t */\n\tprivate static _addElementCallback( element: Element, callback: ( entry: ResizeObserverEntry ) => void ): void {\n\t\tif ( !ResizeObserver._elementCallbacks ) {\n\t\t\tResizeObserver._elementCallbacks = new Map();\n\t\t}\n\n\t\tlet callbacks = ResizeObserver._elementCallbacks.get( element );\n\n\t\tif ( !callbacks ) {\n\t\t\tcallbacks = new Set();\n\t\t\tResizeObserver._elementCallbacks.set( element, callbacks );\n\t\t}\n\n\t\tcallbacks.add( callback );\n\t}\n\n\t/**\n\t * Removes a resize callback from the DOM element. If no callbacks are left\n\t * for the element, it removes the element from the native observer.\n\t */\n\tprivate static _deleteElementCallback( element: Element, callback: ( entry: ResizeObserverEntry ) => void ): void {\n\t\tconst callbacks = ResizeObserver._getElementCallbacks( element );\n\n\t\t// Remove the element callback. Check if exist first in case someone\n\t\t// called destroy() twice.\n\t\tif ( callbacks ) {\n\t\t\tcallbacks.delete( callback );\n\n\t\t\t// If no callbacks left for the element, also remove the element.\n\t\t\tif ( !callbacks.size ) {\n\t\t\t\tResizeObserver._elementCallbacks!.delete( element );\n\t\t\t\tResizeObserver._observerInstance!.unobserve( element );\n\t\t\t}\n\t\t}\n\n\t\tif ( ResizeObserver._elementCallbacks && !ResizeObserver._elementCallbacks.size ) {\n\t\t\tResizeObserver._observerInstance = null;\n\t\t\tResizeObserver._elementCallbacks = null;\n\t\t}\n\t}\n\n\t/**\n\t * Returns are registered resize callbacks for the DOM element.\n\t */\n\tprivate static _getElementCallbacks( element: Element ): Set<( entry: ResizeObserverEntry ) => void> | null | undefined {\n\t\tif ( !ResizeObserver._elementCallbacks ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn ResizeObserver._elementCallbacks.get( element );\n\t}\n\n\t/**\n\t * Creates the single native observer shared across all `ResizeObserver` instances.\n\t */\n\tprivate static _createObserver(): void {\n\t\tResizeObserver._observerInstance = new global.window.ResizeObserver( entries => {\n\t\t\tfor ( const entry of entries ) {\n\t\t\t\tconst callbacks = ResizeObserver._getElementCallbacks( entry.target );\n\n\t\t\t\tif ( callbacks ) {\n\t\t\t\t\tfor ( const callback of callbacks ) {\n\t\t\t\t\t\tcallback( entry );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/setdatainelement\n */\n\n/* globals HTMLTextAreaElement */\n\n/**\n * Sets data in a given element.\n *\n * @param el The element in which the data will be set.\n * @param data The data string.\n */\nexport default function setDataInElement( el: HTMLElement, data: string ): void {\n\tif ( el instanceof HTMLTextAreaElement ) {\n\t\tel.value = data;\n\t}\n\n\tel.innerHTML = data;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/tounit\n */\n\n/**\n * Returns a helper function, which adds a desired trailing\n * `unit` to the passed value.\n *\n * @param unit An unit like \"px\" or \"em\".\n */\nexport default function toUnit( unit: string ): ToUnitHelper {\n\treturn value => value + unit;\n}\n\n/**\n * A function, which adds a pre–defined trailing `unit`\n * to the passed `value`.\n *\n * @param value A value to be given the unit.\n * @returns A value with the trailing unit.\n */\nexport type ToUnitHelper = ( value: string | number ) => string;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/indexof\n */\n\n/**\n * Returns index of the node in the parent element.\n *\n * @param node Node which index is tested.\n * @returns Index of the node in the parent element. Returns 0 if node has no parent.\n */\nexport default function indexOf( node: Node ): number {\n\tlet index = 0;\n\n\twhile ( node.previousSibling ) {\n\t\tnode = node.previousSibling;\n\t\tindex++;\n\t}\n\n\treturn index;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/insertat\n */\n\n/**\n * Inserts node to the parent at given index.\n *\n * @param parentElement Parent element.\n * @param index Insertions index.\n * @param nodeToInsert Node to insert.\n */\nexport default function insertAt(\n\tparentElement: Element,\n\tindex: number,\n\tnodeToInsert: Node\n): void {\n\tparentElement.insertBefore( nodeToInsert, parentElement.childNodes[ index ] || null );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals Node */\n\n/**\n * @module utils/dom/iscomment\n */\n\n/**\n * Checks whether the object is a native DOM Comment node.\n */\nexport default function isComment( obj: any ): obj is Comment {\n\treturn obj && obj.nodeType === Node.COMMENT_NODE;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/isvisible\n */\n\n/**\n * Checks whether the element is visible to the user in DOM:\n *\n * * connected to the root of the document,\n * * has no `display: none`,\n * * has no ancestors with `display: none`.\n *\n * **Note**: This helper does not check whether the element is hidden by cropping, overflow, etc..\n * To check that, use {@link module:utils/dom/rect~Rect} instead.\n */\nexport default function isVisible( element: HTMLElement | null | undefined ): boolean {\n\treturn !!( element && element.getClientRects && element.getClientRects().length );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/position\n */\n\nimport global from './global';\nimport Rect, { type RectSource } from './rect';\nimport getPositionedAncestor from './getpositionedancestor';\nimport getBorderWidths from './getborderwidths';\nimport { isFunction } from 'lodash-es';\n\n// @if CK_DEBUG_POSITION // const RectDrawer = require( '@ckeditor/ckeditor5-utils/tests/_utils/rectdrawer' ).default\n\n/**\n * Calculates the `position: absolute` coordinates of a given element so it can be positioned with respect to the\n * target in the visually most efficient way, taking various restrictions like viewport or limiter geometry\n * into consideration.\n *\n * ```ts\n * // The element which is to be positioned.\n * const element = document.body.querySelector( '#toolbar' );\n *\n * // A target to which the element is positioned relatively.\n * const target = document.body.querySelector( '#container' );\n *\n * // Finding the optimal coordinates for the positioning.\n * const { left, top, name } = getOptimalPosition( {\n * \telement: element,\n * \ttarget: target,\n *\n * \t// The algorithm will chose among these positions to meet the requirements such\n * \t// as \"limiter\" element or \"fitInViewport\", set below. The positions are considered\n * \t// in the order of the array.\n * \tpositions: [\n * \t\t//\n * \t \t//\t[ Target ]\n * \t\t//\t+-----------------+\n * \t\t//\t|     Element     |\n * \t\t//\t+-----------------+\n * \t\t//\n * \t\ttargetRect => ( {\n * \t\t\ttop: targetRect.bottom,\n * \t\t\tleft: targetRect.left,\n * \t\t\tname: 'mySouthEastPosition'\n * \t\t} ),\n *\n * \t\t//\n * \t\t//\t+-----------------+\n * \t\t//\t|     Element     |\n * \t\t//\t+-----------------+\n * \t\t//\t[ Target ]\n * \t\t//\n * \t\t( targetRect, elementRect ) => ( {\n * \t\t\ttop: targetRect.top - elementRect.height,\n * \t\t\tleft: targetRect.left,\n * \t\t\tname: 'myNorthEastPosition'\n * \t\t} )\n * \t],\n *\n * \t// Find a position such guarantees the element remains within visible boundaries of <body>.\n * \tlimiter: document.body,\n *\n * \t// Find a position such guarantees the element remains within visible boundaries of the browser viewport.\n * \tfitInViewport: true\n * } );\n *\n * // The best position which fits into document.body and the viewport. May be useful\n * // to set proper class on the `element`.\n * console.log( name ); // -> \"myNorthEastPosition\"\n *\n * // Using the absolute coordinates which has been found to position the element\n * // as in the diagram depicting the \"myNorthEastPosition\" position.\n * element.style.top = top;\n * element.style.left = left;\n * ```\n *\n * @param options The input data and configuration of the helper.\n */\nexport function getOptimalPosition( { element, target, positions, limiter, fitInViewport, viewportOffsetConfig }: Options ): Position {\n\t// If the {@link module:utils/dom/position~Options#target} is a function, use what it returns.\n\t// https://github.com/ckeditor/ckeditor5-utils/issues/157\n\tif ( isFunction( target ) ) {\n\t\ttarget = target();\n\t}\n\n\t// If the {@link module:utils/dom/position~Options#limiter} is a function, use what it returns.\n\t// https://github.com/ckeditor/ckeditor5-ui/issues/260\n\tif ( isFunction( limiter ) ) {\n\t\tlimiter = limiter();\n\t}\n\n\tconst positionedElementAncestor = getPositionedAncestor( element );\n\tconst elementRect = new Rect( element );\n\tconst targetRect = new Rect( target );\n\n\tlet bestPosition: Position;\n\n\t// @if CK_DEBUG_POSITION // RectDrawer.clear();\n\t// @if CK_DEBUG_POSITION // RectDrawer.draw( targetRect, { outlineWidth: '5px' }, 'Target' );\n\n\tconst viewportRect = fitInViewport && getConstrainedViewportRect( viewportOffsetConfig ) || null;\n\tconst positionOptions = { targetRect, elementRect, positionedElementAncestor, viewportRect };\n\n\t// If there are no limits, just grab the very first position and be done with that drama.\n\tif ( !limiter && !fitInViewport ) {\n\t\tbestPosition = new PositionObject( positions[ 0 ], positionOptions );\n\t} else {\n\t\tconst limiterRect = limiter && new Rect( limiter ).getVisible();\n\n\t\t// @if CK_DEBUG_POSITION // if ( viewportRect ) {\n\t\t// @if CK_DEBUG_POSITION //\t\tRectDrawer.draw( viewportRect, { outlineWidth: '5px' }, 'Viewport' );\n\t\t// @if CK_DEBUG_POSITION // }\n\n\t\t// @if CK_DEBUG_POSITION // if ( limiter ) {\n\t\t// @if CK_DEBUG_POSITION // \tRectDrawer.draw( limiterRect, { outlineWidth: '5px', outlineColor: 'green' }, 'Visible limiter' );\n\t\t// @if CK_DEBUG_POSITION // }\n\n\t\tObject.assign( positionOptions, { limiterRect, viewportRect } );\n\n\t\t// If there's no best position found, i.e. when all intersections have no area because\n\t\t// rects have no width or height, then just use the first available position.\n\t\tbestPosition = getBestPosition( positions, positionOptions ) || new PositionObject( positions[ 0 ], positionOptions );\n\t}\n\n\treturn bestPosition;\n}\n\n/**\n * Returns a viewport `Rect` shrunk by the viewport offset config from all sides.\n */\nfunction getConstrainedViewportRect( viewportOffsetConfig: Options[ 'viewportOffsetConfig' ] ): Rect {\n\tviewportOffsetConfig = Object.assign( { top: 0, bottom: 0, left: 0, right: 0 }, viewportOffsetConfig );\n\n\tconst viewportRect = new Rect( global.window );\n\n\tviewportRect.top += viewportOffsetConfig.top!;\n\tviewportRect.height -= viewportOffsetConfig.top!;\n\tviewportRect.bottom -= viewportOffsetConfig.bottom!;\n\tviewportRect.height -= viewportOffsetConfig.bottom!;\n\n\treturn viewportRect;\n}\n\n/**\n * For a given array of positioning functions, returns such that provides the best\n * fit of the `elementRect` into the `limiterRect` and `viewportRect`.\n */\nfunction getBestPosition(\n\tpositions: ReadonlyArray<PositioningFunction>,\n\toptions: ConstructorParameters<typeof PositionObject>[ 1 ]\n): Position | null {\n\tconst { elementRect } = options;\n\n\t// This is when element is fully visible.\n\tconst elementRectArea = elementRect.getArea();\n\n\tconst positionInstances = positions\n\t\t.map( positioningFunction => new PositionObject( positioningFunction, options ) )\n\t\t// Some positioning functions may return `null` if they don't want to participate.\n\t\t.filter( position => !!position.name );\n\n\tlet maxFitFactor = 0;\n\tlet bestPosition = null;\n\n\tfor ( const position of positionInstances ) {\n\t\tconst { limiterIntersectionArea, viewportIntersectionArea } = position;\n\n\t\t// If a such position is found that element is fully contained by the limiter then, obviously,\n\t\t// there will be no better one, so finishing.\n\t\tif ( limiterIntersectionArea === elementRectArea ) {\n\t\t\treturn position;\n\t\t}\n\n\t\t// To maximize both viewport and limiter intersection areas we use distance on _viewportIntersectionArea\n\t\t// and _limiterIntersectionArea plane (without sqrt because we are looking for max value).\n\t\tconst fitFactor = viewportIntersectionArea ** 2 + limiterIntersectionArea ** 2;\n\n\t\tif ( fitFactor > maxFitFactor ) {\n\t\t\tmaxFitFactor = fitFactor;\n\t\t\tbestPosition = position;\n\t\t}\n\t}\n\n\treturn bestPosition;\n}\n\n/**\n * For a given absolute Rect coordinates object and a positioned element ancestor, it updates its\n * coordinates that make up for the position and the scroll of the ancestor.\n *\n * This is necessary because while Rects (and DOMRects) are relative to the browser's viewport, their coordinates\n * are used in real–life to position elements with `position: absolute`, which are scoped by any positioned\n * (and scrollable) ancestors.\n */\nfunction shiftRectToCompensatePositionedAncestor( rect: Rect, positionedElementAncestor: HTMLElement ): void {\n\tconst ancestorPosition = getRectForAbsolutePositioning( new Rect( positionedElementAncestor ) );\n\tconst ancestorBorderWidths = getBorderWidths( positionedElementAncestor );\n\n\tlet moveX = 0;\n\tlet moveY = 0;\n\n\t// (https://github.com/ckeditor/ckeditor5-ui-default/issues/126)\n\t// If there's some positioned ancestor of the panel, then its `Rect` must be taken into\n\t// consideration. `Rect` is always relative to the viewport while `position: absolute` works\n\t// with respect to that positioned ancestor.\n\tmoveX -= ancestorPosition.left;\n\tmoveY -= ancestorPosition.top;\n\n\t// (https://github.com/ckeditor/ckeditor5-utils/issues/139)\n\t// If there's some positioned ancestor of the panel, not only its position must be taken into\n\t// consideration (see above) but also its internal scrolls. Scroll have an impact here because `Rect`\n\t// is relative to the viewport (it doesn't care about scrolling), while `position: absolute`\n\t// must compensate that scrolling.\n\tmoveX += positionedElementAncestor.scrollLeft;\n\tmoveY += positionedElementAncestor.scrollTop;\n\n\t// (https://github.com/ckeditor/ckeditor5-utils/issues/139)\n\t// If there's some positioned ancestor of the panel, then its `Rect` includes its CSS `borderWidth`\n\t// while `position: absolute` positioning does not consider it.\n\t// E.g. `{ position: absolute, top: 0, left: 0 }` means upper left corner of the element,\n\t// not upper-left corner of its border.\n\tmoveX -= ancestorBorderWidths.left;\n\tmoveY -= ancestorBorderWidths.top;\n\n\trect.moveBy( moveX, moveY );\n}\n\n/**\n * DOMRect (also Rect) works in a scroll–independent geometry but `position: absolute` doesn't.\n * This function converts Rect to `position: absolute` coordinates.\n */\nfunction getRectForAbsolutePositioning( rect: Rect ): Rect {\n\tconst { scrollX, scrollY } = global.window;\n\n\treturn rect.clone().moveBy( scrollX, scrollY );\n}\n\n/**\n * A position object which instances are created and used by the {@link module:utils/dom/position~getOptimalPosition} helper.\n *\n * {@link module:utils/dom/position~Position#top} and {@link module:utils/dom/position~Position#left} properties of the position instance\n * translate directly to the `top` and `left` properties in CSS \"`position: absolute` coordinate system\". If set on the positioned element\n * in DOM, they will make it display it in the right place in the viewport.\n */\nexport interface Position {\n\n\t/**\n\t * Position name.\n\t */\n\treadonly name?: string;\n\n\t/**\n\t * Additional position configuration, as passed from the {@link module:utils/dom/position~PositioningFunction positioning function}.\n\t *\n\t * This object can be use, for instance, to pass through presentation options used by the consumer of the\n\t * {@link module:utils/dom/position~getOptimalPosition} helper.\n\t */\n\treadonly config?: object;\n\n\t/**\n\t * The left value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\treadonly left: number;\n\n\t/**\n\t * The top value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\treadonly top: number;\n}\n\n/**\n * A position class which instances are created and used by the {@link module:utils/dom/position~getOptimalPosition} helper.\n *\n * {@link module:utils/dom/position~Position#top} and {@link module:utils/dom/position~Position#left} properties of the position instance\n * translate directly to the `top` and `left` properties in CSS \"`position: absolute` coordinate system\". If set on the positioned element\n * in DOM, they will make it display it in the right place in the viewport.\n */\nclass PositionObject implements Position {\n\tpublic name?: string;\n\tpublic config?: object;\n\n\tprivate _positioningFunctionCorrdinates!: { left: number; top: number };\n\tprivate _options!: ConstructorParameters<typeof PositionObject>[ 1 ];\n\tprivate _cachedRect?: Rect;\n\tprivate _cachedAbsoluteRect?: Rect;\n\n\t/**\n\t * Creates an instance of the {@link module:utils/dom/position~PositionObject} class.\n\t *\n\t * @param positioningFunction function The function that defines the expected\n\t * coordinates the positioned element should move to.\n\t * @param options options object.\n\t * @param options.elementRect The positioned element rect.\n\t * @param options.targetRect The target element rect.\n\t * @param options.viewportRect The viewport rect.\n\t * @param options.limiterRect The limiter rect.\n\t * @param options.positionedElementAncestor Nearest element ancestor element which CSS position is not \"static\".\n\t */\n\tconstructor(\n\t\tpositioningFunction: PositioningFunction,\n\t\toptions: {\n\t\t\treadonly elementRect: Rect;\n\t\t\treadonly targetRect: Rect;\n\t\t\treadonly viewportRect: Rect | null;\n\t\t\treadonly positionedElementAncestor?: HTMLElement | null;\n\t\t\treadonly limiterRect?: Rect;\n\t\t}\n\t) {\n\t\tconst positioningFunctionOutput = positioningFunction( options.targetRect, options.elementRect, options.viewportRect );\n\n\t\t// Nameless position for a function that didn't participate.\n\t\tif ( !positioningFunctionOutput ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { left, top, name, config } = positioningFunctionOutput;\n\n\t\tthis.name = name;\n\t\tthis.config = config;\n\n\t\tthis._positioningFunctionCorrdinates = { left, top };\n\t\tthis._options = options;\n\t}\n\n\t/**\n\t * The left value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\tpublic get left(): number {\n\t\treturn this._absoluteRect.left;\n\t}\n\n\t/**\n\t * The top value in pixels in the CSS `position: absolute` coordinate system.\n\t * Set it on the positioned element in DOM to move it to the position.\n\t */\n\tpublic get top(): number {\n\t\treturn this._absoluteRect.top;\n\t}\n\n\t/**\n\t * An intersection area between positioned element and limiter within viewport constraints.\n\t */\n\tpublic get limiterIntersectionArea(): number {\n\t\tconst limiterRect = this._options.limiterRect;\n\n\t\tif ( limiterRect ) {\n\t\t\tconst viewportRect = this._options.viewportRect;\n\n\t\t\tif ( viewportRect ) {\n\t\t\t\t// Consider only the part of the limiter which is visible in the viewport. So the limiter is getting limited.\n\t\t\t\tconst limiterViewportIntersectRect = limiterRect.getIntersection( viewportRect );\n\n\t\t\t\tif ( limiterViewportIntersectRect ) {\n\t\t\t\t\t// If the limiter is within the viewport, then check the intersection between that part of the\n\t\t\t\t\t// limiter and actual position.\n\t\t\t\t\treturn limiterViewportIntersectRect.getIntersectionArea( this._rect );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\treturn limiterRect.getIntersectionArea( this._rect );\n\t\t\t}\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * An intersection area between positioned element and viewport.\n\t */\n\tpublic get viewportIntersectionArea(): number {\n\t\tconst viewportRect = this._options.viewportRect;\n\n\t\tif ( viewportRect ) {\n\t\t\treturn viewportRect.getIntersectionArea( this._rect );\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * An already positioned element rect. A clone of the element rect passed to the constructor\n\t * but placed in the viewport according to the positioning function.\n\t */\n\tprivate get _rect(): Rect {\n\t\tif ( this._cachedRect ) {\n\t\t\treturn this._cachedRect;\n\t\t}\n\n\t\tthis._cachedRect = this._options.elementRect.clone().moveTo(\n\t\t\tthis._positioningFunctionCorrdinates.left,\n\t\t\tthis._positioningFunctionCorrdinates.top\n\t\t);\n\n\t\treturn this._cachedRect;\n\t}\n\n\t/**\n\t * An already absolutely positioned element rect. See ({@link #_rect}).\n\t */\n\tprivate get _absoluteRect(): Rect {\n\t\tif ( this._cachedAbsoluteRect ) {\n\t\t\treturn this._cachedAbsoluteRect;\n\t\t}\n\n\t\tthis._cachedAbsoluteRect = getRectForAbsolutePositioning( this._rect );\n\n\t\tif ( this._options.positionedElementAncestor ) {\n\t\t\tshiftRectToCompensatePositionedAncestor( this._cachedAbsoluteRect, this._options.positionedElementAncestor );\n\t\t}\n\n\t\treturn this._cachedAbsoluteRect!;\n\t}\n}\n\n/**\n * The `getOptimalPosition()` helper options.\n */\nexport interface Options {\n\n\t/**\n\t * Element that is to be positioned.\n\t */\n\treadonly element: HTMLElement;\n\n\t/**\n\t * Target with respect to which the `element` is to be positioned.\n\t */\n\treadonly target: RectSource | ( () => RectSource );\n\n\t/**\n\t * An array of positioning functions.\n\t *\n\t * **Note**: Positioning functions are processed in the order of preference. The first function that works\n\t * in the current environment (e.g. offers the complete fit in the viewport geometry) will be picked by\n\t * `getOptimalPosition()`.\n\t *\n\t * **Note**: Any positioning function returning `null` is ignored.\n\t */\n\treadonly positions: ReadonlyArray<PositioningFunction>;\n\n\t/**\n\t * When set, the algorithm will chose position which fits the most in the\n\t * limiter's bounding rect.\n\t */\n\treadonly limiter?: RectSource | ( () => ( RectSource | null ) ) | null;\n\n\t/**\n\t * When set, the algorithm will chose such a position which fits `element`\n\t * the most inside visible viewport.\n\t */\n\treadonly fitInViewport?: boolean;\n\n\t/**\n\t * Viewport offset config object. It restricts the visible viewport available to the `getOptimalPosition()` from each side.\n\t *\n\t * ```ts\n\t * {\n\t * \ttop: 50,\n\t * \tright: 50,\n\t * \tbottom: 50,\n\t * \tleft: 50\n\t * }\n\t * ```\n\t */\n\treadonly viewportOffsetConfig?: {\n\t\treadonly top?: number;\n\t\treadonly right?: number;\n\t\treadonly bottom?: number;\n\t\treadonly left?: number;\n\t};\n}\n\n/**\n * A positioning function which, based on positioned element and target {@link module:utils/dom/rect~Rect Rects}, returns rect coordinates\n * representing the geometrical relation between them. Used by the {@link module:utils/dom/position~getOptimalPosition} helper.\n *\n * ```ts\n * // This simple position will place the element directly under the target, in the middle:\n * //\n * //\t    [ Target ]\n * //\t+-----------------+\n * //\t|     Element     |\n * //\t+-----------------+\n * //\n * const position = ( targetRect, elementRect, [ viewportRect ] ) => ( {\n * \ttop: targetRect.bottom,\n * \tleft: targetRect.left + targetRect.width / 2 - elementRect.width / 2,\n * \tname: 'bottomMiddle',\n *\n * \t// Note: The config is optional.\n * \tconfig: {\n * \t\tzIndex: '999'\n * \t}\n * } );\n * ```\n *\n * @param elementRect The rect of the element to be positioned.\n * @param targetRect The rect of the target the element (its rect) is relatively positioned to.\n * @param viewportRect The rect of the visual browser viewport.\n * @returns When the function returns `null`, it will not be considered by {@link module:utils/dom/position~getOptimalPosition}.\n */\nexport type PositioningFunction = ( elementRect: Rect, targetRect: Rect, viewportRect: Rect | null ) => PositioningFunctionResult | null;\n\n/**\n * The result of {@link module:utils/dom/position~PositioningFunction}.\n */\nexport interface PositioningFunctionResult {\n\n\t/**\n\t * The `top` value of the element rect that would represent the position.\n\t */\n\ttop: number;\n\n\t/**\n\t * The `left` value of the element rect that would represent the position.\n\t */\n\tleft: number;\n\n\t/**\n\t * The name of the position. It helps the user of the {@link module:utils/dom/position~getOptimalPosition}\n\t * helper to recognize different positioning function results. It will pass through to the {@link module:utils/dom/position~Position}\n\t * returned by the helper.\n\t */\n\tname?: string;\n\n\t/**\n\t * An optional configuration that will pass-through the {@link module:utils/dom/position~getOptimalPosition} helper\n\t * to the {@link module:utils/dom/position~Position} returned by this helper.\n\t * This configuration may, for instance, let the user of {@link module:utils/dom/position~getOptimalPosition} know that this particular\n\t * position comes with a certain presentation.\n\t */\n\tconfig?: object;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/getpositionedancestor\n */\n\nimport global from './global';\n\n/**\n * For a given element, returns the nearest ancestor element which CSS position is not \"static\".\n *\n * @param element The native DOM element to be checked.\n */\nexport default function getPositionedAncestor( element?: HTMLElement ): HTMLElement | null {\n\tif ( !element || !element.parentNode ) {\n\t\treturn null;\n\t}\n\n\tif ( element.offsetParent === global.document.body ) {\n\t\treturn null;\n\t}\n\n\treturn element.offsetParent as HTMLElement;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/remove\n */\n\n/**\n * Removes given node from parent.\n *\n * @param node Node to remove.\n */\nexport default function remove( node: Node ): void {\n\tconst parent = node.parentNode;\n\n\tif ( parent ) {\n\t\tparent.removeChild( node );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/dom/scroll\n */\n\nimport isRange from './isrange';\nimport Rect from './rect';\nimport isText from './istext';\n\ntype IfTrue<T> = T extends true ? true : never;\n\n/**\n * Makes any page `HTMLElement` or `Range` (`target`) visible inside the browser viewport.\n * This helper will scroll all `target` ancestors and the web browser viewport to reveal the target to\n * the user. If the `target` is already visible, nothing will happen.\n *\n * @param options Additional configuration of the scrolling behavior.\n * @param options.target A target, which supposed to become visible to the user.\n * @param options.viewportOffset An offset from the edge of the viewport (in pixels)\n * the `target` will be moved by if the viewport is scrolled. It enhances the user experience\n * by keeping the `target` some distance from the edge of the viewport and thus making it easier to\n * read or edit by the user.\n * @param options.ancestorOffset An offset from the boundary of scrollable ancestors (if any)\n * the `target` will be moved by if the viewport is scrolled. It enhances the user experience\n * by keeping the `target` some distance from the edge of the ancestors and thus making it easier to\n * read or edit by the user.\n * @param options.alignToTop When set `true`, the helper will make sure the `target` is scrolled up\n * to the top boundary of the viewport and/or scrollable ancestors if scrolled up. When not set\n * (default), the `target` will be revealed by scrolling as little as possible. This option will\n * not affect `targets` that must be scrolled down because they will appear at the top of the boundary\n * anyway.\n *\n * ```\n *                                             scrollViewportToShowTarget() with            scrollViewportToShowTarget() with\n *          Initial state                        alignToTop unset (default)                        alignToTop = true\n *\n * ┌────────────────────────────────┬─┐       ┌────────────────────────────────┬─┐        ┌────────────────────────────────┬─┐\n * │                                │▲│       │                                │▲│        │   [ Target to be revealed ]    │▲│\n * │                                │ │       │                                │ │        │                                │ │\n * │                                │█│       │                                │ │        │                                │ │\n * │                                │█│       │                                │ │        │                                │ │\n * │                                │ │       │                                │█│        │                                │ │\n * │                                │ │       │                                │█│        │                                │█│\n * │                                │ │       │                                │ │        │                                │█│\n * │                                │▼│       │   [ Target to be revealed ]    │▼│        │                                │▼│\n * └────────────────────────────────┴─┘       └────────────────────────────────┴─┘        └────────────────────────────────┴─┘\n *\n *\n *     [ Target to be revealed ]\n *```\n *\n * @param options.forceScroll When set `true`, the `target` will be aligned to the top of the viewport\n * and scrollable ancestors whether it is already visible or not. This option will only work when `alignToTop`\n * is `true`\n */\nexport function scrollViewportToShowTarget<T extends boolean, U extends IfTrue<T>>(\n\t{\n\t\ttarget,\n\t\tviewportOffset = 0,\n\t\tancestorOffset = 0,\n\t\talignToTop,\n\t\tforceScroll\n\t}:\n\t{\n\t\treadonly target: HTMLElement | Range;\n\t\treadonly viewportOffset?: number;\n\t\treadonly ancestorOffset?: number;\n\t\treadonly alignToTop?: T;\n\t\treadonly forceScroll?: U;\n\t}\n): void {\n\tconst targetWindow = getWindow( target );\n\tlet currentWindow: Window | null = targetWindow;\n\tlet currentFrame: HTMLElement | null = null;\n\n\t// Iterate over all windows, starting from target's parent window up to window#top.\n\twhile ( currentWindow ) {\n\t\tlet firstAncestorToScroll: HTMLElement;\n\n\t\t// Let's scroll target's ancestors first to reveal it. Then, once the ancestor scrolls\n\t\t// settled down, the algorithm can eventually scroll the viewport of the current window.\n\t\t//\n\t\t// Note: If the current window is target's **original** window (e.g. the first one),\n\t\t// start scrolling the closest parent of the target. If not, scroll the closest parent\n\t\t// of an iframe that resides in the current window.\n\t\tif ( currentWindow == targetWindow ) {\n\t\t\tfirstAncestorToScroll = getParentElement( target );\n\t\t} else {\n\t\t\tfirstAncestorToScroll = getParentElement( currentFrame! );\n\t\t}\n\n\t\t// Scroll the target's ancestors first. Once done, scrolling the viewport is easy.\n\t\tscrollAncestorsToShowRect( {\n\t\t\tparent: firstAncestorToScroll,\n\t\t\tgetRect: () => {\n\t\t\t\t// Note: If the target does not belong to the current window **directly**,\n\t\t\t\t// i.e. it resides in an iframe belonging to the window, obtain the target's rect\n\t\t\t\t// in the coordinates of the current window. By default, a Rect returns geometry\n\t\t\t\t// relative to the current window's viewport. To make it work in a parent window,\n\t\t\t\t// it must be shifted.\n\t\t\t\treturn getRectRelativeToWindow( target, currentWindow! );\n\t\t\t},\n\t\t\talignToTop,\n\t\t\tancestorOffset,\n\t\t\tforceScroll\n\t\t} );\n\n\t\t// Obtain the rect of the target after it has been scrolled within its ancestors.\n\t\t// It's time to scroll the viewport.\n\t\tconst targetRect = getRectRelativeToWindow( target, currentWindow );\n\n\t\tscrollWindowToShowRect( {\n\t\t\twindow: currentWindow,\n\t\t\trect: targetRect,\n\t\t\tviewportOffset,\n\t\t\talignToTop,\n\t\t\tforceScroll\n\t\t} );\n\n\t\tif ( currentWindow.parent != currentWindow ) {\n\t\t\t// Keep the reference to the <iframe> element the \"previous current window\" was\n\t\t\t// rendered within. It will be useful to re–calculate the rect of the target\n\t\t\t// in the parent window's relative geometry. The target's rect must be shifted\n\t\t\t// by it's iframe's position.\n\t\t\tcurrentFrame = currentWindow.frameElement as HTMLElement | null;\n\t\t\tcurrentWindow = currentWindow.parent;\n\n\t\t\t// If the current window has some parent but frameElement is inaccessible, then they have\n\t\t\t// different domains/ports and, due to security reasons, accessing and scrolling\n\t\t\t// the parent window won't be possible.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/930.\n\t\t\tif ( !currentFrame ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t} else {\n\t\t\tcurrentWindow = null;\n\t\t}\n\t}\n}\n\n/**\n * Makes any page `HTMLElement` or `Range` (target) visible within its scrollable ancestors,\n * e.g. if they have `overflow: scroll` CSS style.\n *\n * @param target A target, which supposed to become visible to the user.\n * @param ancestorOffset An offset between the target and the boundary of scrollable ancestors\n * to be maintained while scrolling.\n */\nexport function scrollAncestorsToShowTarget( target: HTMLElement | Range, ancestorOffset?: number ): void {\n\tconst targetParent = getParentElement( target );\n\n\tscrollAncestorsToShowRect( {\n\t\tparent: targetParent,\n\t\tgetRect: () => new Rect( target ),\n\t\tancestorOffset\n\t} );\n}\n\n/**\n * Makes a given rect visible within its parent window.\n *\n * Note: Avoid the situation where the caret is still in the viewport, but totally\n * at the edge of it. In such situation, if it moved beyond the viewport in the next\n * action e.g. after paste, the scrolling would move it to the viewportOffset level\n * and it all would look like the caret visually moved up/down:\n *\n * 1.\n * ```\n * | foo[]\n * |                                    <--- N px of space below the caret\n * +---------------------------------...\n * ```\n *\n * 2. *paste*\n * 3.\n * ```\n * |\n * |\n * +-foo-----------------------------...\n *   bar[]                              <--- caret below viewport, scrolling...\n * ```\n *\n * 4. *scrolling*\n * 5.\n * ```\n * |\n * | foo\n * | bar[]                              <--- caret precisely at the edge\n * +---------------------------------...\n * ```\n *\n * To prevent this, this method checks the rects moved by the viewportOffset to cover\n * the upper/lower edge of the viewport. It makes sure if the action repeats, there's\n * no twitching – it's a purely visual improvement:\n *\n * 5. (after fix)\n * ```\n * |\n * | foo\n * | bar[]\n * |                                    <--- N px of space below the caret\n * +---------------------------------...\n * ```\n *\n * @param options Additional configuration of the scrolling behavior.\n * @param options.window A window which is scrolled to reveal the rect.\n * @param options.rect A rect which is to be revealed.\n * @param options.viewportOffset An offset from the edge of the viewport (in pixels) the `rect` will be\n * moved by if the viewport is scrolled.\n * @param options.alignToTop When set `true`, the helper will make sure the `rect` is scrolled up\n * to the top boundary of the viewport if scrolled up. When not set (default), the `rect` will be\n * revealed by scrolling as little as possible. This option will not affect rects that must be scrolled\n * down because they will appear at the top of the boundary anyway.\n * @param options.forceScroll When set `true`, the `rect` will be aligned to the top of the viewport\n * whether it is already visible or not. This option will only work when `alignToTop` is `true`\n */\nfunction scrollWindowToShowRect<T extends boolean, U extends IfTrue<T>>(\n\t{\n\t\twindow,\n\t\trect,\n\t\talignToTop,\n\t\tforceScroll,\n\t\tviewportOffset\n\t}: {\n\t\treadonly window: Window;\n\t\treadonly rect: Rect;\n\t\treadonly viewportOffset: number;\n\t\treadonly alignToTop?: T;\n\t\treadonly forceScroll?: U;\n\t}\n): void {\n\tconst targetShiftedDownRect = rect.clone().moveBy( 0, viewportOffset );\n\tconst targetShiftedUpRect = rect.clone().moveBy( 0, -viewportOffset );\n\tconst viewportRect = new Rect( window ).excludeScrollbarsAndBorders();\n\n\tconst rects = [ targetShiftedUpRect, targetShiftedDownRect ];\n\tconst forceScrollToTop = alignToTop && forceScroll;\n\tconst allRectsFitInViewport = rects.every( rect => viewportRect.contains( rect ) );\n\n\tlet { scrollX, scrollY } = window;\n\tconst initialScrollX = scrollX;\n\tconst initialScrollY = scrollY;\n\n\tif ( forceScrollToTop ) {\n\t\tscrollY -= ( viewportRect.top - rect.top ) + viewportOffset;\n\t} else if ( !allRectsFitInViewport ) {\n\t\tif ( isAbove( targetShiftedUpRect, viewportRect ) ) {\n\t\t\tscrollY -= viewportRect.top - rect.top + viewportOffset;\n\t\t} else if ( isBelow( targetShiftedDownRect, viewportRect ) ) {\n\t\t\tif ( alignToTop ) {\n\t\t\t\tscrollY += rect.top - viewportRect.top - viewportOffset;\n\t\t\t} else {\n\t\t\t\tscrollY += rect.bottom - viewportRect.bottom + viewportOffset;\n\t\t\t}\n\t\t}\n\t}\n\n\tif ( !allRectsFitInViewport ) {\n\t\t// TODO: Web browsers scroll natively to place the target in the middle\n\t\t// of the viewport. It's not a very popular case, though.\n\t\tif ( isLeftOf( rect, viewportRect ) ) {\n\t\t\tscrollX -= viewportRect.left - rect.left + viewportOffset;\n\t\t} else if ( isRightOf( rect, viewportRect ) ) {\n\t\t\tscrollX += rect.right - viewportRect.right + viewportOffset;\n\t\t}\n\t}\n\n\tif ( scrollX != initialScrollX || scrollY !== initialScrollY ) {\n\t\twindow.scrollTo( scrollX, scrollY );\n\t}\n}\n\n/**\n * Recursively scrolls element ancestors to visually reveal a rect.\n *\n * @param options Additional configuration of the scrolling behavior.\n * @param options.parent The first parent ancestor to start scrolling.\n * @param options.getRect A function which returns the Rect, which is to be revealed.\n * @param options.ancestorOffset An offset from the boundary of scrollable ancestors (if any)\n * the `Rect` instance will be moved by if the viewport is scrolled.\n * @param options.alignToTop When set `true`, the helper will make sure the `Rect` instance is scrolled up\n * to the top boundary of the scrollable ancestors if scrolled up. When not set (default), the `rect`\n * will be revealed by scrolling as little as possible. This option will not affect rects that must be\n * scrolled down because they will appear at the top of the boundary\n * anyway.\n * @param options.forceScroll When set `true`, the `rect` will be aligned to the top of scrollable ancestors\n * whether it is already visible or not. This option will only work when `alignToTop` is `true`\n */\nfunction scrollAncestorsToShowRect<T extends boolean, U extends IfTrue<T>>(\n\t{\n\t\tparent,\n\t\tgetRect,\n\t\talignToTop,\n\t\tforceScroll,\n\t\tancestorOffset = 0\n\t}: {\n\t\treadonly parent: HTMLElement;\n\t\treadonly getRect: () => Rect;\n\t\treadonly alignToTop?: T;\n\t\treadonly forceScroll?: U;\n\t\treadonly ancestorOffset?: number;\n\t}\n): void {\n\tconst parentWindow = getWindow( parent );\n\tconst forceScrollToTop = alignToTop && forceScroll;\n\tlet parentRect: Rect, targetRect: Rect, targetFitsInTarget: boolean;\n\n\twhile ( parent != parentWindow.document.body ) {\n\t\ttargetRect = getRect();\n\t\tparentRect = new Rect( parent ).excludeScrollbarsAndBorders();\n\t\ttargetFitsInTarget = parentRect.contains( targetRect );\n\n\t\tif ( forceScrollToTop ) {\n\t\t\tparent.scrollTop -= ( parentRect.top - targetRect.top ) + ancestorOffset;\n\t\t} else if ( !targetFitsInTarget ) {\n\t\t\tif ( isAbove( targetRect, parentRect ) ) {\n\t\t\t\tparent.scrollTop -= parentRect.top - targetRect.top + ancestorOffset;\n\t\t\t} else if ( isBelow( targetRect, parentRect ) ) {\n\t\t\t\tif ( alignToTop ) {\n\t\t\t\t\tparent.scrollTop += targetRect.top - parentRect.top - ancestorOffset;\n\t\t\t\t} else {\n\t\t\t\t\tparent.scrollTop += targetRect.bottom - parentRect.bottom + ancestorOffset;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( !targetFitsInTarget ) {\n\t\t\tif ( isLeftOf( targetRect, parentRect ) ) {\n\t\t\t\tparent.scrollLeft -= parentRect.left - targetRect.left + ancestorOffset;\n\t\t\t} else if ( isRightOf( targetRect, parentRect ) ) {\n\t\t\t\tparent.scrollLeft += targetRect.right - parentRect.right + ancestorOffset;\n\t\t\t}\n\t\t}\n\n\t\tparent = parent.parentNode as HTMLElement;\n\t}\n}\n\n/**\n * Determines if a given `Rect` extends beyond the bottom edge of the second `Rect`.\n */\nfunction isBelow( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.bottom > secondRect.bottom;\n}\n\n/**\n * Determines if a given `Rect` extends beyond the top edge of the second `Rect`.\n */\nfunction isAbove( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.top < secondRect.top;\n}\n\n/**\n * Determines if a given `Rect` extends beyond the left edge of the second `Rect`.\n */\nfunction isLeftOf( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.left < secondRect.left;\n}\n\n/**\n * Determines if a given `Rect` extends beyond the right edge of the second `Rect`.\n */\nfunction isRightOf( firstRect: Rect, secondRect: Rect ): boolean {\n\treturn firstRect.right > secondRect.right;\n}\n\n/**\n * Returns the closest window of an element or range.\n */\nfunction getWindow( elementOrRange: HTMLElement | Range ): Window {\n\tif ( isRange( elementOrRange ) ) {\n\t\treturn elementOrRange.startContainer.ownerDocument!.defaultView!;\n\t} else {\n\t\treturn elementOrRange.ownerDocument.defaultView!;\n\t}\n}\n\n/**\n * Returns the closest parent of an element or DOM range.\n */\nfunction getParentElement( elementOrRange: HTMLElement | Range ): HTMLElement {\n\tif ( isRange( elementOrRange ) ) {\n\t\tlet parent = elementOrRange.commonAncestorContainer as HTMLElement;\n\n\t\t// If a Range is attached to the Text, use the closest element ancestor.\n\t\tif ( isText( parent ) ) {\n\t\t\tparent = parent.parentNode as HTMLElement;\n\t\t}\n\n\t\treturn parent;\n\t} else {\n\t\treturn elementOrRange.parentNode as HTMLElement;\n\t}\n}\n\n/**\n * Returns the rect of an element or range residing in an iframe.\n * The result rect is relative to the geometry of the passed window instance.\n *\n * @param target Element or range which rect should be returned.\n * @param relativeWindow A window the rect should be relative to.\n */\nfunction getRectRelativeToWindow( target: HTMLElement | Range, relativeWindow: Window ): Rect {\n\tconst targetWindow = getWindow( target );\n\tconst rect = new Rect( target );\n\n\tif ( targetWindow === relativeWindow ) {\n\t\treturn rect;\n\t} else {\n\t\tlet currentWindow = targetWindow;\n\n\t\twhile ( currentWindow != relativeWindow ) {\n\t\t\tconst frame = currentWindow.frameElement as HTMLElement;\n\t\t\tconst frameRect = new Rect( frame ).excludeScrollbarsAndBorders();\n\n\t\t\trect.moveBy( frameRect.left, frameRect.top );\n\n\t\t\tcurrentWindow = currentWindow.parent;\n\t\t}\n\t}\n\n\treturn rect;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * A set of utilities related to keyboard support.\n *\n * @module utils/keyboard\n */\n\nimport type { LanguageDirection } from './language';\nimport CKEditorError from './ckeditorerror';\nimport env from './env';\n\nconst modifiersToGlyphsMac = {\n\tctrl: '⌃',\n\tcmd: '⌘',\n\talt: '⌥',\n\tshift: '⇧'\n} as const;\n\nconst modifiersToGlyphsNonMac = {\n\tctrl: 'Ctrl+',\n\talt: 'Alt+',\n\tshift: 'Shift+'\n} as const;\n\n/**\n * An object with `keyName => keyCode` pairs for a set of known keys.\n *\n * Contains:\n *\n * * `a-z`,\n * * `0-9`,\n * * `f1-f12`,\n * * `` ` ``, `-`, `=`, `[`, `]`, `;`, `'`, `,`, `.`, `/`, `\\`,\n * * `arrow(left|up|right|bottom)`,\n * * `backspace`, `delete`, `enter`, `esc`, `tab`,\n * * `ctrl`, `cmd`, `shift`, `alt`.\n */\nexport const keyCodes = generateKnownKeyCodes();\n\nconst keyCodeNames = Object.fromEntries(\n\tObject.entries( keyCodes ).map( ( [ name, code ] ) => [ code, name.charAt( 0 ).toUpperCase() + name.slice( 1 ) ] )\n);\n\n/**\n * Converts a key name or {@link module:utils/keyboard~KeystrokeInfo keystroke info} into a key code.\n *\n * Note: Key names are matched with {@link module:utils/keyboard#keyCodes} in a case-insensitive way.\n *\n * @param key A key name (see {@link module:utils/keyboard#keyCodes}) or a keystroke data object.\n * @returns Key or keystroke code.\n */\nexport function getCode( key: string | Readonly<KeystrokeInfo> ): number {\n\tlet keyCode: number | undefined;\n\n\tif ( typeof key == 'string' ) {\n\t\tkeyCode = keyCodes[ key.toLowerCase() ];\n\n\t\tif ( !keyCode ) {\n\t\t\t/**\n\t\t\t * Unknown key name. Only key names included in the {@link module:utils/keyboard#keyCodes} can be used.\n\t\t\t *\n\t\t\t * @error keyboard-unknown-key\n\t\t\t * @param {String} key\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'keyboard-unknown-key', null, { key } );\n\t\t}\n\t} else {\n\t\tkeyCode = key.keyCode +\n\t\t\t( key.altKey ? keyCodes.alt : 0 ) +\n\t\t\t( key.ctrlKey ? keyCodes.ctrl : 0 ) +\n\t\t\t( key.shiftKey ? keyCodes.shift : 0 ) +\n\t\t\t( key.metaKey ? keyCodes.cmd : 0 );\n\t}\n\n\treturn keyCode;\n}\n\n/**\n * Parses the keystroke and returns a keystroke code that will match the code returned by\n * {@link module:utils/keyboard~getCode} for the corresponding {@link module:utils/keyboard~KeystrokeInfo keystroke info}.\n *\n * The keystroke can be passed in two formats:\n *\n * * as a single string – e.g. `ctrl + A`,\n * * as an array of {@link module:utils/keyboard~keyCodes known key names} and key codes – e.g.:\n *   * `[ 'ctrl', 32 ]` (ctrl + space),\n *   * `[ 'ctrl', 'a' ]` (ctrl + A).\n *\n * Note: Key names are matched with {@link module:utils/keyboard#keyCodes} in a case-insensitive way.\n *\n * Note: Only keystrokes with a single non-modifier key are supported (e.g. `ctrl+A` is OK, but `ctrl+A+B` is not).\n *\n * Note: On macOS, keystroke handling is translating the `Ctrl` key to the `Cmd` key and handling only that keystroke.\n * For example, a registered keystroke `Ctrl+A` will be translated to `Cmd+A` on macOS. To disable the translation of some keystroke,\n * use the forced modifier: `Ctrl!+A` (note the exclamation mark).\n *\n * @param keystroke The keystroke definition.\n * @returns Keystroke code.\n */\nexport function parseKeystroke( keystroke: string | ReadonlyArray<number | string> ): number {\n\tif ( typeof keystroke == 'string' ) {\n\t\tkeystroke = splitKeystrokeText( keystroke );\n\t}\n\n\treturn keystroke\n\t\t.map( key => ( typeof key == 'string' ) ? getEnvKeyCode( key ) : key )\n\t\t.reduce( ( key, sum ) => sum + key, 0 );\n}\n\n/**\n * Translates any keystroke string text like `\"Ctrl+A\"` to an\n * environment–specific keystroke, i.e. `\"⌘A\"` on macOS.\n *\n * @param keystroke The keystroke text.\n * @returns The keystroke text specific for the environment.\n */\nexport function getEnvKeystrokeText( keystroke: string ): string {\n\tlet keystrokeCode = parseKeystroke( keystroke );\n\n\tconst modifiersToGlyphs = Object.entries( env.isMac ? modifiersToGlyphsMac : modifiersToGlyphsNonMac );\n\n\tconst modifiers = modifiersToGlyphs.reduce( ( modifiers, [ name, glyph ] ) => {\n\t\t// Modifier keys are stored as a bit mask so extract those from the keystroke code.\n\t\tif ( ( keystrokeCode & keyCodes[ name ] ) != 0 ) {\n\t\t\tkeystrokeCode &= ~keyCodes[ name ];\n\t\t\tmodifiers += glyph;\n\t\t}\n\n\t\treturn modifiers;\n\t}, '' );\n\n\treturn modifiers + ( keystrokeCode ? keyCodeNames[ keystrokeCode ] : '' );\n}\n\n/**\n * Returns `true` if the provided key code represents one of the arrow keys.\n *\n * @param keyCode A key code as in {@link module:utils/keyboard~KeystrokeInfo#keyCode}.\n */\nexport function isArrowKeyCode( keyCode: number ): boolean {\n\treturn keyCode == keyCodes.arrowright ||\n\t\tkeyCode == keyCodes.arrowleft ||\n\t\tkeyCode == keyCodes.arrowup ||\n\t\tkeyCode == keyCodes.arrowdown;\n}\n\n/**\n * String representing a direction of an arrow key kode.\n */\nexport type ArrowKeyCodeDirection = 'left' | 'up' | 'right' | 'down';\n\n/**\n * Returns the direction in which the {@link module:engine/model/documentselection~DocumentSelection selection}\n * will move when the provided arrow key code is pressed considering the language direction of the editor content.\n *\n * For instance, in right–to–left (RTL) content languages, pressing the left arrow means moving the selection right (forward)\n * in the model structure. Similarly, pressing the right arrow moves the selection left (backward).\n *\n * @param keyCode A key code as in {@link module:utils/keyboard~KeystrokeInfo#keyCode}.\n * @param contentLanguageDirection The content language direction, corresponding to\n * {@link module:utils/locale~Locale#contentLanguageDirection}.\n * @returns Localized arrow direction or `undefined` for non-arrow key codes.\n */\nexport function getLocalizedArrowKeyCodeDirection(\n\tkeyCode: number,\n\tcontentLanguageDirection: LanguageDirection\n): ArrowKeyCodeDirection | undefined {\n\tconst isLtrContent = contentLanguageDirection === 'ltr';\n\n\tswitch ( keyCode ) {\n\t\tcase keyCodes.arrowleft:\n\t\t\treturn isLtrContent ? 'left' : 'right';\n\n\t\tcase keyCodes.arrowright:\n\t\t\treturn isLtrContent ? 'right' : 'left';\n\n\t\tcase keyCodes.arrowup:\n\t\t\treturn 'up';\n\n\t\tcase keyCodes.arrowdown:\n\t\t\treturn 'down';\n\t}\n}\n\n/**\n * Converts a key name to the key code with mapping based on the env.\n *\n * See: {@link module:utils/keyboard~getCode}.\n *\n * @param key The key name (see {@link module:utils/keyboard#keyCodes}).\n * @returns Key code.\n */\nfunction getEnvKeyCode( key: string ): number {\n\t// Don't remap modifier key for forced modifiers.\n\tif ( key.endsWith( '!' ) ) {\n\t\treturn getCode( key.slice( 0, -1 ) );\n\t}\n\n\tconst code = getCode( key );\n\n\treturn env.isMac && code == keyCodes.ctrl ? keyCodes.cmd : code;\n}\n\n/**\n * Determines if the provided key code moves the {@link module:engine/model/documentselection~DocumentSelection selection}\n * forward or backward considering the language direction of the editor content.\n *\n * For instance, in right–to–left (RTL) languages, pressing the left arrow means moving forward\n * in the model structure. Similarly, pressing the right arrow moves the selection backward.\n *\n * @param keyCode A key code as in {@link module:utils/keyboard~KeystrokeInfo#keyCode}.\n * @param contentLanguageDirection The content language direction, corresponding to\n * {@link module:utils/locale~Locale#contentLanguageDirection}.\n */\nexport function isForwardArrowKeyCode(\n\tkeyCode: number,\n\tcontentLanguageDirection: LanguageDirection\n): boolean {\n\tconst localizedKeyCodeDirection = getLocalizedArrowKeyCodeDirection( keyCode, contentLanguageDirection );\n\n\treturn localizedKeyCodeDirection === 'down' || localizedKeyCodeDirection === 'right';\n}\n\nfunction generateKnownKeyCodes(): { readonly [ keyCode: string ]: number } {\n\tconst keyCodes: { [keyCode: string]: number } = {\n\t\tarrowleft: 37,\n\t\tarrowup: 38,\n\t\tarrowright: 39,\n\t\tarrowdown: 40,\n\t\tbackspace: 8,\n\t\tdelete: 46,\n\t\tenter: 13,\n\t\tspace: 32,\n\t\tesc: 27,\n\t\ttab: 9,\n\n\t\t// The idea about these numbers is that they do not collide with any real key codes, so we can use them\n\t\t// like bit masks.\n\t\tctrl: 0x110000,\n\t\tshift: 0x220000,\n\t\talt: 0x440000,\n\t\tcmd: 0x880000\n\t};\n\n\t// a-z\n\tfor ( let code = 65; code <= 90; code++ ) {\n\t\tconst letter = String.fromCharCode( code );\n\n\t\tkeyCodes[ letter.toLowerCase() ] = code;\n\t}\n\n\t// 0-9\n\tfor ( let code = 48; code <= 57; code++ ) {\n\t\tkeyCodes[ code - 48 ] = code;\n\t}\n\n\t// F1-F12\n\tfor ( let code = 112; code <= 123; code++ ) {\n\t\tkeyCodes[ 'f' + ( code - 111 ) ] = code;\n\t}\n\n\t// other characters\n\tfor ( const char of '`-=[];\\',./\\\\' ) {\n\t\tkeyCodes[ char ] = char.charCodeAt( 0 );\n\t}\n\n\treturn keyCodes;\n}\n\nfunction splitKeystrokeText( keystroke: string ): Array<string> {\n\treturn keystroke.split( '+' ).map( key => key.trim() );\n}\n\n/**\n * Information about the keystroke.\n */\nexport interface KeystrokeInfo {\n\n\t/**\n\t * The [key code](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/keyCode).\n\t */\n\tkeyCode: number;\n\n\t/**\n\t * Whether the <kbd>Alt</kbd> modifier was pressed.\n\t */\n\taltKey: boolean;\n\n\t/**\n\t * Whether the <kbd>Cmd</kbd> modifier was pressed.\n\t */\n\tmetaKey: boolean;\n\n\t/**\n\t * Whether the <kbd>Ctrl</kbd> modifier was pressed.\n\t */\n\tctrlKey: boolean;\n\n\t/**\n\t * Whether the <kbd>Shift</kbd> modifier was pressed.\n\t */\n\tshiftKey: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/toarray\n */\n\n/**\n * Transforms any value to an array. If the provided value is already an array, it is returned unchanged.\n *\n * @label MUTABLE\n * @param data The value to transform to an array.\n * @returns An array created from data.\n */\nexport default function toArray<T>( data: ArrayOrItem<T> ): Array<T>;\n\n/**\n * Transforms any value to an array. If the provided value is already an array, it is returned unchanged.\n *\n * @label IMMUTABLE\n * @param data The value to transform to an array.\n * @returns An array created from data.\n */\nexport default function toArray<T>( data: ReadonlyArrayOrItem<T> ): ReadonlyArray<T>;\n\nexport default function toArray<T>( data: ArrayOrItem<T> ): Array<T> {\n\treturn Array.isArray( data ) ? data : [ data ];\n}\n\nexport type ArrayOrItem<T> = T | Array<T>;\nexport type ReadonlyArrayOrItem<T> = T | ReadonlyArray<T>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable no-var */\n\n/**\n * @module utils/translation-service\n */\n\nimport CKEditorError from './ckeditorerror';\nimport global from './dom/global';\n\ndeclare global {\n\tvar CKEDITOR_TRANSLATIONS: {\n\t\t[ language: string ]: {\n\t\t\tdictionary: { [ messageId: string ]: string | ReadonlyArray<string> };\n\t\t\tgetPluralForm?: ( n: number ) => number;\n\t\t};\n\t};\n}\n\n/* istanbul ignore else -- @preserve */\nif ( !global.window.CKEDITOR_TRANSLATIONS ) {\n\tglobal.window.CKEDITOR_TRANSLATIONS = {};\n}\n\n/**\n * Adds translations to existing ones or overrides the existing translations. These translations will later\n * be available for the {@link module:utils/locale~Locale#t `t()`} function.\n *\n * The `translations` is an object which consists of `messageId: translation` pairs. Note that the message ID can be\n * either constructed from the message string or from the message ID if it was passed\n * (this happens rarely and mostly for short messages or messages with placeholders).\n * Since the editor displays only the message string, the message ID can be found either in the source code or in the\n * built translations for another language.\n *\n * ```ts\n * add( 'pl', {\n * \t'Cancel': 'Anuluj',\n * \t'IMAGE': 'obraz', // Note that the `IMAGE` comes from the message ID, while the string can be `image`.\n * } );\n * ```\n *\n * If the message is supposed to support various plural forms, make sure to provide an array with the singular form and all plural forms:\n *\n * ```ts\n * add( 'pl', {\n * \t'Add space': [ 'Dodaj spację', 'Dodaj %0 spacje', 'Dodaj %0 spacji' ]\n * } );\n * ```\n *\n * You should also specify the third argument (the `getPluralForm()` function) that will be used to determine the plural form if no\n * language file was loaded for that language. All language files coming from CKEditor 5 sources will have this option set, so\n * these plural form rules will be reused by other translations added to the registered languages. The `getPluralForm()` function\n * can return either a Boolean or a number.\n *\n * ```ts\n * add( 'en', {\n * \t// ... Translations.\n * }, n => n !== 1 );\n * add( 'pl', {\n * \t// ... Translations.\n * }, n => n == 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && ( n % 100 < 10 || n % 100 >= 20 ) ? 1 : 2 );\n * ```\n *\n * All translations extend the global `window.CKEDITOR_TRANSLATIONS` object. An example of this object can be found below:\n *\n * ```ts\n * {\n * \tpl: {\n * \t\tdictionary: {\n * \t\t\t'Cancel': 'Anuluj',\n * \t\t\t'Add space': [ 'Dodaj spację', 'Dodaj %0 spacje', 'Dodaj %0 spacji' ]\n * \t\t},\n * \t\t// A function that returns the plural form index.\n * \t\tgetPluralForm: n => n == 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && ( n % 100 < 10 || n % 100 >= 20 ) ? 1 : 2 );\n * \t}\n * \t// Other languages.\n * \t}\n * ```\n *\n * If you cannot import this function from this module (e.g. because you use a CKEditor 5 build), you can\n * still add translations by extending the global `window.CKEDITOR_TRANSLATIONS` object by using a function like\n * the one below:\n *\n * ```ts\n * function addTranslations( language, translations, getPluralForm ) {\n * \tif ( !global.window.CKEDITOR_TRANSLATIONS ) {\n * \t\tglobal.window.CKEDITOR_TRANSLATIONS = {};\n * \t}\n\n * \tif ( !global.window.CKEDITOR_TRANSLATIONS[ language ] ) {\n * \t\tglobal.window.CKEDITOR_TRANSLATIONS[ language ] = {};\n * \t}\n *\n * \tconst languageTranslations = global.window.CKEDITOR_TRANSLATIONS[ language ];\n *\n * \tlanguageTranslations.dictionary = languageTranslations.dictionary || {};\n * \tlanguageTranslations.getPluralForm = getPluralForm || languageTranslations.getPluralForm;\n *\n * \t// Extend the dictionary for the given language.\n * \tObject.assign( languageTranslations.dictionary, translations );\n * }\n * ```\n *\n * @param language Target language.\n * @param translations An object with translations which will be added to the dictionary.\n * For each message ID the value should be either a translation or an array of translations if the message\n * should support plural forms.\n * @param getPluralForm A function that returns the plural form index (a number).\n */\nexport function add(\n\tlanguage: string,\n\ttranslations: { readonly [ messageId: string ]: string | ReadonlyArray<string> },\n\tgetPluralForm?: ( n: number ) => number\n): void {\n\tif ( !global.window.CKEDITOR_TRANSLATIONS[ language ] ) {\n\t\tglobal.window.CKEDITOR_TRANSLATIONS[ language ] = {} as any;\n\t}\n\n\tconst languageTranslations = global.window.CKEDITOR_TRANSLATIONS[ language ];\n\n\tlanguageTranslations.dictionary = languageTranslations.dictionary || {};\n\tlanguageTranslations.getPluralForm = getPluralForm || languageTranslations.getPluralForm;\n\n\tObject.assign( languageTranslations.dictionary, translations );\n}\n\n/**\n * **Note:** This method is internal, use {@link module:utils/locale~Locale#t the `t()` function} instead to translate\n * the editor UI parts.\n *\n * This function is responsible for translating messages to the specified language. It uses translations added perviously\n * by {@link module:utils/translation-service~add} (a translations dictionary and the `getPluralForm()` function\n * to provide accurate translations of plural forms).\n *\n * When no translation is defined in the dictionary or the dictionary does not exist, this function returns\n * the original message string or the message plural depending on the number of elements.\n *\n * ```ts\n * translate( 'pl', { string: 'Cancel' } ); // 'Cancel'\n * ```\n *\n * The third optional argument is the number of elements, based on which the single form or one of the plural forms\n * should be picked when the message is supposed to support various plural forms.\n *\n * ```ts\n * translate( 'en', { string: 'Add a space', plural: 'Add %0 spaces' }, 1 ); // 'Add a space'\n * translate( 'en', { string: 'Add a space', plural: 'Add %0 spaces' }, 3 ); // 'Add %0 spaces'\n * ```\n *\n * The message should provide an ID using the `id` property when the message strings are not unique and their\n * translations should be different.\n *\n * ```ts\n * translate( 'en', { string: 'image', id: 'ADD_IMAGE' } );\n * translate( 'en', { string: 'image', id: 'AN_IMAGE' } );\n * ```\n *\n * @internal\n * @param language Target language.\n * @param message A message that will be translated.\n * @param quantity The number of elements for which a plural form should be picked from the target language dictionary.\n * @returns Translated sentence.\n */\nexport function _translate( language: string, message: Message, quantity: number = 1 ): string {\n\tif ( typeof quantity !== 'number' ) {\n\t\t/**\n\t\t * An incorrect value was passed to the translation function. This was probably caused\n\t\t * by an incorrect message interpolation of a plural form. Note that for messages supporting plural forms\n\t\t * the second argument of the `t()` function should always be a number or an array with a number as the first element.\n\t\t *\n\t\t * @error translation-service-quantity-not-a-number\n\t\t */\n\t\tthrow new CKEditorError( 'translation-service-quantity-not-a-number', null, { quantity } );\n\t}\n\n\tconst numberOfLanguages = getNumberOfLanguages();\n\n\tif ( numberOfLanguages === 1 ) {\n\t\t// Override the language to the only supported one.\n\t\t// This can't be done in the `Locale` class, because the translations comes after the `Locale` class initialization.\n\t\tlanguage = Object.keys( global.window.CKEDITOR_TRANSLATIONS )[ 0 ];\n\t}\n\n\tconst messageId = message.id || message.string;\n\n\tif ( numberOfLanguages === 0 || !hasTranslation( language, messageId ) ) {\n\t\tif ( quantity !== 1 ) {\n\t\t\t// Return the default plural form that was passed in the `message.plural` parameter.\n\t\t\treturn message.plural!;\n\t\t}\n\n\t\treturn message.string;\n\t}\n\n\tconst dictionary = global.window.CKEDITOR_TRANSLATIONS[ language ].dictionary;\n\tconst getPluralForm = global.window.CKEDITOR_TRANSLATIONS[ language ].getPluralForm || ( n => n === 1 ? 0 : 1 );\n\tconst translation = dictionary[ messageId ];\n\n\tif ( typeof translation === 'string' ) {\n\t\treturn translation;\n\t}\n\n\tconst pluralFormIndex = Number( getPluralForm( quantity ) );\n\n\t// Note: The `translate` function is not responsible for replacing `%0, %1, ...` with values.\n\treturn translation[ pluralFormIndex ];\n}\n\n/**\n * Clears dictionaries for test purposes.\n *\n * @internal\n */\nexport function _clear(): void {\n\tglobal.window.CKEDITOR_TRANSLATIONS = {};\n}\n\n/**\n * Checks whether the dictionary exists and translation in that dictionary exists.\n */\nfunction hasTranslation( language: string, messageId: string ): boolean {\n\treturn (\n\t\t!!global.window.CKEDITOR_TRANSLATIONS[ language ] &&\n\t\t!!global.window.CKEDITOR_TRANSLATIONS[ language ].dictionary[ messageId ]\n\t);\n}\n\nfunction getNumberOfLanguages(): number {\n\treturn Object.keys( global.window.CKEDITOR_TRANSLATIONS ).length;\n}\n\n/**\n * The internationalization message interface. A message that implements this interface can be passed to the `t()` function\n * to be translated to the target UI language.\n */\nexport interface Message {\n\n\t/**\n\t * The message string to translate. Acts as a default translation if the translation for a given language\n\t * is not defined. When the message is supposed to support plural forms, the string should be the English singular form of the message.\n\t */\n\treadonly string: string;\n\n\t/**\n\t * The message ID. If passed, the message ID is taken from this property instead of the `message.string`.\n\t * This property is useful when various messages share the same message string, for example, the `editor` string in `in the editor`\n\t * and `my editor` sentences.\n\t */\n\treadonly id?: string;\n\n\t/**\n\t * The plural form of the message. This property should be skipped when a message is not supposed\n\t * to support plural forms. Otherwise it should always be set to a string with the English plural form of the message.\n\t */\n\treadonly plural?: string;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/language\n */\n\n/**\n * String representing a language direction.\n */\nexport type LanguageDirection = 'ltr' | 'rtl';\n\nconst RTL_LANGUAGE_CODES = [\n\t'ar', 'ara', // Arabic\n\t'fa', 'per', 'fas', // Persian\n\t'he', 'heb', // Hebrew\n\t'ku', 'kur', // Kurdish\n\t'ug', 'uig' // Uighur, Uyghur\n];\n\n/**\n * Helps determine whether a language text direction is LTR or RTL.\n *\n * @param languageCode The ISO 639-1 or ISO 639-2 language code.\n */\nexport function getLanguageDirection( languageCode: string ): LanguageDirection {\n\treturn RTL_LANGUAGE_CODES.includes( languageCode ) ? 'rtl' : 'ltr';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/locale\n */\n\n/* globals console */\n\nimport toArray from './toarray';\nimport { _translate, type Message } from './translation-service';\nimport { getLanguageDirection, type LanguageDirection } from './language';\n\n/**\n * Represents the localization services.\n */\nexport default class Locale {\n\t/**\n\t * The editor UI language code in the [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format.\n\t *\n\t * If the {@link #contentLanguage content language} was not specified in the `Locale` constructor,\n\t * it also defines the language of the content.\n\t */\n\tpublic readonly uiLanguage: string;\n\n\t/**\n\t * Text direction of the {@link #uiLanguage editor UI language}. Either `'ltr'` or `'rtl'`.\n\t */\n\tpublic readonly uiLanguageDirection: LanguageDirection;\n\n\t/**\n\t * The editor content language code in the [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format.\n\t *\n\t * Usually the same as the {@link #uiLanguage editor language}, it can be customized by passing an optional\n\t * argument to the `Locale` constructor.\n\t */\n\tpublic readonly contentLanguage: string;\n\n\t/**\n\t * Text direction of the {@link #contentLanguage editor content language}.\n\t *\n\t * If the content language was passed directly to the `Locale` constructor, this property represents the\n\t * direction of that language.\n\t *\n\t * If the {@link #contentLanguage editor content language} was derived from the {@link #uiLanguage editor language},\n\t * the content language direction is the same as the {@link #uiLanguageDirection UI language direction}.\n\t *\n\t * The value is either `'ltr'` or `'rtl'`.\n\t */\n\tpublic readonly contentLanguageDirection: LanguageDirection;\n\n\t/**\n\t * Translates the given message to the {@link #uiLanguage}. This method is also available in\n\t * {@link module:core/editor/editor~Editor#t `Editor`} and {@link module:ui/view~View#t `View`}.\n\t *\n\t * This method's context is statically bound to the `Locale` instance and **should always be called as a function**:\n\t *\n\t * ```ts\n\t * const t = locale.t;\n\t * t( 'Label' );\n\t * ```\n\t *\n\t * The message can be either a string or an object implementing the {@link module:utils/translation-service~Message} interface.\n\t *\n\t * The message may contain placeholders (`%<index>`) for value(s) that are passed as a `values` parameter.\n\t * For an array of values, the `%<index>` will be changed to an element of that array at the given index.\n\t * For a single value passed as the second argument, only the `%0` placeholders will be changed to the provided value.\n\t *\n\t * ```ts\n\t * t( 'Created file \"%0\" in %1ms.', [ fileName, timeTaken ] );\n\t * t( 'Created file \"%0\", fileName );\n\t * ```\n\t *\n\t * The message supports plural forms. To specify the plural form, use the `plural` property. Singular or plural form\n\t * will be chosen depending on the first value from the passed `values`. The value of the `plural` property is used\n\t * as a default plural translation when the translation for the target language is missing.\n\t *\n\t * ```ts\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 1 ); // 'Add a space' for the English language.\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 5 ); // 'Add 5 spaces' for the English language.\n\t * t( { string: '%1 a space', plural: '%1 %0 spaces' }, [ 2, 'Add' ] ); // 'Add 2 spaces' for the English language.\n\t *\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 1 ); // 'Dodaj spację' for the Polish language.\n\t * t( { string: 'Add a space', plural: 'Add %0 spaces' }, 5 ); // 'Dodaj 5 spacji' for the Polish language.\n\t * t( { string: '%1 a space', plural: '%1 %0 spaces' }, [ 2, 'Add' ] ); // 'Dodaj 2 spacje' for the Polish language.\n\t * ```\n\t *\n\t *  * The message should provide an ID using the `id` property when the message strings are not unique and their\n\t * translations should be different.\n\t *\n\t * ```ts\n\t * translate( 'en', { string: 'image', id: 'ADD_IMAGE' } );\n\t * translate( 'en', { string: 'image', id: 'AN_IMAGE' } );\n\t * ```\n\t */\n\tpublic readonly t: LocaleTranslate;\n\n\t/**\n\t * Creates a new instance of the locale class. Learn more about\n\t * {@glink features/ui-language configuring the language of the editor}.\n\t *\n\t * @param options Locale configuration.\n\t * @param options.uiLanguage The editor UI language code in the\n\t * [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format. See {@link #uiLanguage}.\n\t * @param options.contentLanguage The editor content language code in the\n\t * [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format. If not specified, the same as `options.language`.\n\t * See {@link #contentLanguage}.\n\t */\n\tconstructor( { uiLanguage = 'en', contentLanguage }: { readonly uiLanguage?: string; readonly contentLanguage?: string } = {} ) {\n\t\tthis.uiLanguage = uiLanguage;\n\t\tthis.contentLanguage = contentLanguage || this.uiLanguage;\n\t\tthis.uiLanguageDirection = getLanguageDirection( this.uiLanguage );\n\t\tthis.contentLanguageDirection = getLanguageDirection( this.contentLanguage );\n\n\t\tthis.t = ( message, values ) => this._t( message, values );\n\t}\n\n\t/**\n\t * The editor UI language code in the [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) format.\n\t *\n\t * **Note**: This property was deprecated. Please use {@link #uiLanguage} and {@link #contentLanguage}\n\t * properties instead.\n\t *\n\t * @deprecated\n\t */\n\tpublic get language(): string {\n\t\t/**\n\t\t * The {@link module:utils/locale~Locale#language `Locale#language`} property was deprecated and will\n\t\t * be removed in the near future. Please use the {@link module:utils/locale~Locale#uiLanguage `Locale#uiLanguage`} and\n\t\t * {@link module:utils/locale~Locale#contentLanguage `Locale#contentLanguage`} properties instead.\n\t\t *\n\t\t * @error locale-deprecated-language-property\n\t\t */\n\t\tconsole.warn(\n\t\t\t'locale-deprecated-language-property: ' +\n\t\t\t'The Locale#language property has been deprecated and will be removed in the near future. ' +\n\t\t\t'Please use #uiLanguage and #contentLanguage properties instead.' );\n\n\t\treturn this.uiLanguage;\n\t}\n\n\t/**\n\t * An unbound version of the {@link #t} method.\n\t */\n\tprivate _t( message: string | Message, values: number | string | ReadonlyArray<number | string> = [] ): string {\n\t\tvalues = toArray( values );\n\n\t\tif ( typeof message === 'string' ) {\n\t\t\tmessage = { string: message };\n\t\t}\n\n\t\tconst hasPluralForm = !!message.plural;\n\t\tconst quantity = hasPluralForm ? values[ 0 ] as number : 1;\n\n\t\tconst translatedString = _translate( this.uiLanguage, message, quantity );\n\n\t\treturn interpolateString( translatedString, values );\n\t}\n}\n\n/**\n * @param message A message that will be localized (translated).\n * @param values A value or an array of values that will fill message placeholders.\n * For messages supporting plural forms the first value will determine the plural form.\n */\nexport type LocaleTranslate = ( message: string | Message, values?: number | string | ReadonlyArray<number | string> ) => string;\n\n/**\n * Fills the `%0, %1, ...` string placeholders with values.\n */\nfunction interpolateString( string: string, values: ReadonlyArray<any> ): string {\n\treturn string.replace( /%(\\d+)/g, ( match, index ) => {\n\t\treturn ( index < values.length ) ? values[ index ] : match;\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/collection\n */\n\nimport EmitterMixin from './emittermixin';\nimport CKEditorError from './ckeditorerror';\nimport uid from './uid';\nimport isIterable from './isiterable';\n\n/**\n * Collections are ordered sets of objects. Items in the collection can be retrieved by their indexes\n * in the collection (like in an array) or by their ids.\n *\n * If an object without an `id` property is being added to the collection, the `id` property will be generated\n * automatically. Note that the automatically generated id is unique only within this single collection instance.\n *\n * By default an item in the collection is identified by its `id` property. The name of the identifier can be\n * configured through the constructor of the collection.\n *\n * @typeParam T The type of the collection element.\n */\nexport default class Collection<T extends Record<string, any>> extends EmitterMixin() implements Iterable<T> {\n\t/**\n\t * The internal list of items in the collection.\n\t */\n\tprivate readonly _items: Array<T>;\n\n\t/**\n\t * The internal map of items in the collection.\n\t */\n\tprivate readonly _itemMap: Map<string, T>;\n\n\t/**\n\t * The name of the property which is considered to identify an item.\n\t */\n\tprivate readonly _idProperty: string;\n\n\t/**\n\t * A collection instance this collection is bound to as a result\n\t * of calling {@link #bindTo} method.\n\t */\n\tprivate _bindToCollection?: Collection<any> | null;\n\n\t/**\n\t * A helper mapping external items of a bound collection ({@link #bindTo})\n\t * and actual items of this collection. It provides information\n\t * necessary to properly remove items bound to another collection.\n\t *\n\t * See {@link #_bindToInternalToExternalMap}.\n\t */\n\tprivate readonly _bindToExternalToInternalMap: WeakMap<any, T>;\n\n\t/**\n\t * A helper mapping items of this collection to external items of a bound collection\n\t * ({@link #bindTo}). It provides information necessary to manage the bindings, e.g.\n\t * to avoid loops in two–way bindings.\n\t *\n\t * See {@link #_bindToExternalToInternalMap}.\n\t */\n\tprivate readonly _bindToInternalToExternalMap: WeakMap<T, any>;\n\n\t/**\n\t * Stores indexes of skipped items from bound external collection.\n\t */\n\tprivate _skippedIndexesFromExternal: Array<number>;\n\n\t/**\n\t * Creates a new Collection instance.\n\t *\n\t * You can pass a configuration object as the argument of the constructor:\n\t *\n\t * ```ts\n\t * const emptyCollection = new Collection<{ name: string }>( { idProperty: 'name' } );\n\t * emptyCollection.add( { name: 'John' } );\n\t * console.log( collection.get( 'John' ) ); // -> { name: 'John' }\n\t * ```\n\t *\n\t * The collection is empty by default. You can add new items using the {@link #add} method:\n\t *\n\t * ```ts\n\t * const collection = new Collection<{ id: string }>();\n\t *\n\t * collection.add( { id: 'John' } );\n\t * console.log( collection.get( 0 ) ); // -> { id: 'John' }\n\t * ```\n\t *\n\t * @label NO_ITEMS\n\t * @param options The options object.\n\t * @param options.idProperty The name of the property which is used to identify an item.\n\t * Items that do not have such a property will be assigned one when added to the collection.\n\t */\n\tconstructor( options?: { readonly idProperty?: string } );\n\n\t/**\n\t * Creates a new Collection instance with specified initial items.\n\t *\n\t * ```ts\n\t * const collection = new Collection<{ id: string }>( [ { id: 'John' }, { id: 'Mike' } ] );\n\t *\n\t * console.log( collection.get( 0 ) ); // -> { id: 'John' }\n\t * console.log( collection.get( 1 ) ); // -> { id: 'Mike' }\n\t * console.log( collection.get( 'Mike' ) ); // -> { id: 'Mike' }\n\t * ```\n\t *\n\t * You can always pass a configuration object as the last argument of the constructor:\n\t *\n\t * ```ts\n\t * const nonEmptyCollection = new Collection<{ name: string }>( [ { name: 'John' } ], { idProperty: 'name' } );\n\t * nonEmptyCollection.add( { name: 'George' } );\n\t * console.log( collection.get( 'George' ) ); // -> { name: 'George' }\n\t * console.log( collection.get( 'John' ) ); // -> { name: 'John' }\n\t * ```\n\t *\n\t * @label INITIAL_ITEMS\n\t * @param initialItems The initial items of the collection.\n\t * @param options The options object.\n\t * @param options.idProperty The name of the property which is used to identify an item.\n\t * Items that do not have such a property will be assigned one when added to the collection.\n\t */\n\tconstructor( initialItems: Iterable<T>, options?: { readonly idProperty?: string } );\n\n\tconstructor(\n\t\tinitialItemsOrOptions: Iterable<T> | { readonly idProperty?: string } = {},\n\t\toptions: { readonly idProperty?: string } = {}\n\t) {\n\t\tsuper();\n\n\t\tconst hasInitialItems = isIterable( initialItemsOrOptions );\n\n\t\tif ( !hasInitialItems ) {\n\t\t\toptions = initialItemsOrOptions;\n\t\t}\n\n\t\tthis._items = [];\n\t\tthis._itemMap = new Map();\n\t\tthis._idProperty = options.idProperty || 'id';\n\t\tthis._bindToExternalToInternalMap = new WeakMap();\n\t\tthis._bindToInternalToExternalMap = new WeakMap();\n\t\tthis._skippedIndexesFromExternal = [];\n\n\t\t// Set the initial content of the collection (if provided in the constructor).\n\t\tif ( hasInitialItems ) {\n\t\t\tfor ( const item of initialItemsOrOptions ) {\n\t\t\t\tthis._items.push( item );\n\t\t\t\tthis._itemMap.set( this._getItemIdBeforeAdding( item ), item );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * The number of items available in the collection.\n\t */\n\tpublic get length(): number {\n\t\treturn this._items.length;\n\t}\n\n\t/**\n\t * Returns the first item from the collection or null when collection is empty.\n\t */\n\tpublic get first(): T | null {\n\t\treturn this._items[ 0 ] || null;\n\t}\n\n\t/**\n\t * Returns the last item from the collection or null when collection is empty.\n\t */\n\tpublic get last(): T | null {\n\t\treturn this._items[ this.length - 1 ] || null;\n\t}\n\n\t/**\n\t * Adds an item into the collection.\n\t *\n\t * If the item does not have an id, then it will be automatically generated and set on the item.\n\t *\n\t * @param item\n\t * @param index The position of the item in the collection. The item\n\t * is pushed to the collection when `index` not specified.\n\t * @fires add\n\t * @fires change\n\t */\n\tpublic add( item: T, index?: number ): this {\n\t\treturn this.addMany( [ item ], index );\n\t}\n\n\t/**\n\t * Adds multiple items into the collection.\n\t *\n\t * Any item not containing an id will get an automatically generated one.\n\t *\n\t * @param items\n\t * @param index The position of the insertion. Items will be appended if no `index` is specified.\n\t * @fires add\n\t * @fires change\n\t */\n\tpublic addMany( items: Iterable<T>, index?: number ): this {\n\t\tif ( index === undefined ) {\n\t\t\tindex = this._items.length;\n\t\t} else if ( index > this._items.length || index < 0 ) {\n\t\t\t/**\n\t\t\t * The `index` passed to {@link module:utils/collection~Collection#addMany `Collection#addMany()`}\n\t\t\t * is invalid. It must be a number between 0 and the collection's length.\n\t\t\t *\n\t\t\t * @error collection-add-item-invalid-index\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-add-item-invalid-index', this );\n\t\t}\n\n\t\tlet offset = 0;\n\n\t\tfor ( const item of items ) {\n\t\t\tconst itemId = this._getItemIdBeforeAdding( item );\n\t\t\tconst currentItemIndex = index + offset;\n\n\t\t\tthis._items.splice( currentItemIndex, 0, item );\n\t\t\tthis._itemMap.set( itemId, item );\n\n\t\t\tthis.fire<CollectionAddEvent<T>>( 'add', item, currentItemIndex );\n\n\t\t\toffset++;\n\t\t}\n\n\t\tthis.fire<CollectionChangeEvent<T>>( 'change', {\n\t\t\tadded: items,\n\t\t\tremoved: [],\n\t\t\tindex\n\t\t} );\n\n\t\treturn this;\n\t}\n\n\t/**\n\t * Gets an item by its ID or index.\n\t *\n\t * @param idOrIndex The item ID or index in the collection.\n\t * @returns The requested item or `null` if such item does not exist.\n\t */\n\tpublic get( idOrIndex: string | number ): T | null {\n\t\tlet item: T | undefined;\n\n\t\tif ( typeof idOrIndex == 'string' ) {\n\t\t\titem = this._itemMap.get( idOrIndex );\n\t\t} else if ( typeof idOrIndex == 'number' ) {\n\t\t\titem = this._items[ idOrIndex ];\n\t\t} else {\n\t\t\t/**\n\t\t\t * An index or ID must be given.\n\t\t\t *\n\t\t\t * @error collection-get-invalid-arg\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-get-invalid-arg', this );\n\t\t}\n\n\t\treturn item || null;\n\t}\n\n\t/**\n\t * Returns a Boolean indicating whether the collection contains an item.\n\t *\n\t * @param itemOrId The item or its ID in the collection.\n\t * @returns `true` if the collection contains the item, `false` otherwise.\n\t */\n\tpublic has( itemOrId: T | string ): boolean {\n\t\tif ( typeof itemOrId == 'string' ) {\n\t\t\treturn this._itemMap.has( itemOrId );\n\t\t} else { // Object\n\t\t\tconst idProperty = this._idProperty;\n\t\t\tconst id = itemOrId[ idProperty ];\n\n\t\t\treturn id && this._itemMap.has( id );\n\t\t}\n\t}\n\n\t/**\n\t * Gets an index of an item in the collection.\n\t * When an item is not defined in the collection, the index will equal -1.\n\t *\n\t * @param itemOrId The item or its ID in the collection.\n\t * @returns The index of a given item.\n\t */\n\tpublic getIndex( itemOrId: T | string ): number {\n\t\tlet item: T | undefined;\n\n\t\tif ( typeof itemOrId == 'string' ) {\n\t\t\titem = this._itemMap.get( itemOrId );\n\t\t} else {\n\t\t\titem = itemOrId;\n\t\t}\n\n\t\treturn item ? this._items.indexOf( item ) : -1;\n\t}\n\n\t/**\n\t * Removes an item from the collection.\n\t *\n\t * @param subject The item to remove, its ID or index in the collection.\n\t * @returns The removed item.\n\t * @fires remove\n\t * @fires change\n\t */\n\tpublic remove( subject: T | number | string ): T {\n\t\tconst [ item, index ] = this._remove( subject );\n\n\t\tthis.fire<CollectionChangeEvent<T>>( 'change', {\n\t\t\tadded: [],\n\t\t\tremoved: [ item ],\n\t\t\tindex\n\t\t} );\n\n\t\treturn item;\n\t}\n\n\t/**\n\t * Executes the callback for each item in the collection and composes an array or values returned by this callback.\n\t *\n\t * @typeParam U The result type of the callback.\n\t * @param callback\n\t * @param ctx Context in which the `callback` will be called.\n\t * @returns The result of mapping.\n\t */\n\tpublic map<U>(\n\t\tcallback: ( item: T, index: number ) => U,\n\t\tctx?: any\n\t): Array<U> {\n\t\treturn this._items.map( callback, ctx );\n\t}\n\n\t/**\n\t * Finds the first item in the collection for which the `callback` returns a true value.\n\t *\n\t * @param callback\n\t * @param ctx Context in which the `callback` will be called.\n\t * @returns The item for which `callback` returned a true value.\n\t */\n\tpublic find(\n\t\tcallback: ( item: T, index: number ) => boolean,\n\t\tctx?: any\n\t): T | undefined {\n\t\treturn this._items.find( callback, ctx );\n\t}\n\n\t/**\n\t * Returns an array with items for which the `callback` returned a true value.\n\t *\n\t * @param callback\n\t * @param ctx Context in which the `callback` will be called.\n\t * @returns The array with matching items.\n\t */\n\tpublic filter(\n\t\tcallback: ( item: T, index: number ) => boolean,\n\t\tctx?: any\n\t): Array<T> {\n\t\treturn this._items.filter( callback, ctx );\n\t}\n\n\t/**\n\t * Removes all items from the collection and destroys the binding created using\n\t * {@link #bindTo}.\n\t *\n\t * @fires remove\n\t * @fires change\n\t */\n\tpublic clear(): void {\n\t\tif ( this._bindToCollection ) {\n\t\t\tthis.stopListening( this._bindToCollection );\n\t\t\tthis._bindToCollection = null;\n\t\t}\n\n\t\tconst removedItems = Array.from( this._items );\n\n\t\twhile ( this.length ) {\n\t\t\tthis._remove( 0 );\n\t\t}\n\n\t\tthis.fire<CollectionChangeEvent<T>>( 'change', {\n\t\t\tadded: [],\n\t\t\tremoved: removedItems,\n\t\t\tindex: 0\n\t\t} );\n\t}\n\n\t/**\n\t * Binds and synchronizes the collection with another one.\n\t *\n\t * The binding can be a simple factory:\n\t *\n\t * ```ts\n\t * class FactoryClass {\n\t * \tpublic label: string;\n\t *\n\t * \tconstructor( data: { label: string } ) {\n\t * \t\tthis.label = data.label;\n\t * \t}\n\t * }\n\t *\n\t * const source = new Collection<{ label: string }>( { idProperty: 'label' } );\n\t * const target = new Collection<FactoryClass>();\n\t *\n\t * target.bindTo( source ).as( FactoryClass );\n\t *\n\t * source.add( { label: 'foo' } );\n\t * source.add( { label: 'bar' } );\n\t *\n\t * console.log( target.length ); // 2\n\t * console.log( target.get( 1 ).label ); // 'bar'\n\t *\n\t * source.remove( 0 );\n\t * console.log( target.length ); // 1\n\t * console.log( target.get( 0 ).label ); // 'bar'\n\t * ```\n\t *\n\t * or the factory driven by a custom callback:\n\t *\n\t * ```ts\n\t * class FooClass {\n\t * \tpublic label: string;\n\t *\n\t * \tconstructor( data: { label: string } ) {\n\t * \t\tthis.label = data.label;\n\t * \t}\n\t * }\n\t *\n\t * class BarClass {\n\t * \tpublic label: string;\n\t *\n\t * \tconstructor( data: { label: string } ) {\n\t * \t\tthis.label = data.label;\n\t * \t}\n\t * }\n\t *\n\t * const source = new Collection<{ label: string }>( { idProperty: 'label' } );\n\t * const target = new Collection<FooClass | BarClass>();\n\t *\n\t * target.bindTo( source ).using( ( item ) => {\n\t * \tif ( item.label == 'foo' ) {\n\t * \t\treturn new FooClass( item );\n\t * \t} else {\n\t * \t\treturn new BarClass( item );\n\t * \t}\n\t * } );\n\t *\n\t * source.add( { label: 'foo' } );\n\t * source.add( { label: 'bar' } );\n\t *\n\t * console.log( target.length ); // 2\n\t * console.log( target.get( 0 ) instanceof FooClass ); // true\n\t * console.log( target.get( 1 ) instanceof BarClass ); // true\n\t * ```\n\t *\n\t * or the factory out of property name:\n\t *\n\t * ```ts\n\t * const source = new Collection<{ nested: { value: string } }>();\n\t * const target = new Collection<{ value: string }>();\n\t *\n\t * target.bindTo( source ).using( 'nested' );\n\t *\n\t * source.add( { nested: { value: 'foo' } } );\n\t * source.add( { nested: { value: 'bar' } } );\n\t *\n\t * console.log( target.length ); // 2\n\t * console.log( target.get( 0 ).value ); // 'foo'\n\t * console.log( target.get( 1 ).value ); // 'bar'\n\t * ```\n\t *\n\t * It's possible to skip specified items by returning null value:\n\t *\n\t * ```ts\n\t * const source = new Collection<{ hidden: boolean }>();\n\t * const target = new Collection<{ hidden: boolean }>();\n\t *\n\t * target.bindTo( source ).using( item => {\n\t * \tif ( item.hidden ) {\n\t * \t\treturn null;\n\t * \t}\n\t *\n\t * \treturn item;\n\t * } );\n\t *\n\t * source.add( { hidden: true } );\n\t * source.add( { hidden: false } );\n\t *\n\t * console.log( source.length ); // 2\n\t * console.log( target.length ); // 1\n\t * ```\n\t *\n\t * **Note**: {@link #clear} can be used to break the binding.\n\t *\n\t * @typeParam S The type of `externalCollection` element.\n\t * @param externalCollection A collection to be bound.\n\t * @returns The binding chain object.\n\t */\n\tpublic bindTo<S extends Record<string, any>>(\n\t\texternalCollection: Collection<S>\n\t): CollectionBindToChain<S, T> {\n\t\tif ( this._bindToCollection ) {\n\t\t\t/**\n\t\t\t * The collection cannot be bound more than once.\n\t\t\t *\n\t\t\t * @error collection-bind-to-rebind\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-bind-to-rebind', this );\n\t\t}\n\n\t\tthis._bindToCollection = externalCollection;\n\n\t\treturn {\n\t\t\tas: Class => {\n\t\t\t\tthis._setUpBindToBinding<S>( item => new Class( item ) );\n\t\t\t},\n\n\t\t\tusing: callbackOrProperty => {\n\t\t\t\tif ( typeof callbackOrProperty == 'function' ) {\n\t\t\t\t\tthis._setUpBindToBinding<S>( callbackOrProperty );\n\t\t\t\t} else {\n\t\t\t\t\tthis._setUpBindToBinding<S>( item => item[ callbackOrProperty ] );\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t}\n\n\t/**\n\t * Finalizes and activates a binding initiated by {@link #bindTo}.\n\t *\n\t * @param factory A function which produces collection items.\n\t */\n\tprivate _setUpBindToBinding<S>( factory: ( item: S ) => T | null ): void {\n\t\tconst externalCollection = this._bindToCollection!;\n\n\t\t// Adds the item to the collection once a change has been done to the external collection.\n\t\tconst addItem = ( evt: unknown, externalItem: S, index: number ) => {\n\t\t\tconst isExternalBoundToThis = externalCollection._bindToCollection == this;\n\t\t\tconst externalItemBound = externalCollection._bindToInternalToExternalMap.get( externalItem );\n\n\t\t\t// If an external collection is bound to this collection, which makes it a 2–way binding,\n\t\t\t// and the particular external collection item is already bound, don't add it here.\n\t\t\t// The external item has been created **out of this collection's item** and (re)adding it will\n\t\t\t// cause a loop.\n\t\t\tif ( isExternalBoundToThis && externalItemBound ) {\n\t\t\t\tthis._bindToExternalToInternalMap.set( externalItem, externalItemBound );\n\t\t\t\tthis._bindToInternalToExternalMap.set( externalItemBound, externalItem );\n\t\t\t} else {\n\t\t\t\tconst item = factory( externalItem );\n\n\t\t\t\t// When there is no item we need to remember skipped index first and then we can skip this item.\n\t\t\t\tif ( !item ) {\n\t\t\t\t\tthis._skippedIndexesFromExternal.push( index );\n\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Lets try to put item at the same index as index in external collection\n\t\t\t\t// but when there are a skipped items in one or both collections we need to recalculate this index.\n\t\t\t\tlet finalIndex = index;\n\n\t\t\t\t// When we try to insert item after some skipped items from external collection we need\n\t\t\t\t// to include this skipped items and decrease index.\n\t\t\t\t//\n\t\t\t\t// For the following example:\n\t\t\t\t// external -> [ 'A', 'B - skipped for internal', 'C - skipped for internal' ]\n\t\t\t\t// internal -> [ A ]\n\t\t\t\t//\n\t\t\t\t// Another item is been added at the end of external collection:\n\t\t\t\t// external.add( 'D' )\n\t\t\t\t// external -> [ 'A', 'B - skipped for internal', 'C - skipped for internal', 'D' ]\n\t\t\t\t//\n\t\t\t\t// We can't just add 'D' to internal at the same index as index in external because\n\t\t\t\t// this will produce empty indexes what is invalid:\n\t\t\t\t// internal -> [ 'A', empty, empty, 'D' ]\n\t\t\t\t//\n\t\t\t\t// So we need to include skipped items and decrease index\n\t\t\t\t// internal -> [ 'A', 'D' ]\n\t\t\t\tfor ( const skipped of this._skippedIndexesFromExternal ) {\n\t\t\t\t\tif ( index > skipped ) {\n\t\t\t\t\t\tfinalIndex--;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// We need to take into consideration that external collection could skip some items from\n\t\t\t\t// internal collection.\n\t\t\t\t//\n\t\t\t\t// For the following example:\n\t\t\t\t// internal -> [ 'A', 'B - skipped for external', 'C - skipped for external' ]\n\t\t\t\t// external -> [ A ]\n\t\t\t\t//\n\t\t\t\t// Another item is been added at the end of external collection:\n\t\t\t\t// external.add( 'D' )\n\t\t\t\t// external -> [ 'A', 'D' ]\n\t\t\t\t//\n\t\t\t\t// We need to include skipped items and place new item after them:\n\t\t\t\t// internal -> [ 'A', 'B - skipped for external', 'C - skipped for external', 'D' ]\n\t\t\t\tfor ( const skipped of externalCollection._skippedIndexesFromExternal ) {\n\t\t\t\t\tif ( finalIndex >= skipped ) {\n\t\t\t\t\t\tfinalIndex++;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tthis._bindToExternalToInternalMap.set( externalItem, item );\n\t\t\t\tthis._bindToInternalToExternalMap.set( item, externalItem );\n\t\t\t\tthis.add( item, finalIndex );\n\n\t\t\t\t// After adding new element to internal collection we need update indexes\n\t\t\t\t// of skipped items in external collection.\n\t\t\t\tfor ( let i = 0; i < externalCollection._skippedIndexesFromExternal.length; i++ ) {\n\t\t\t\t\tif ( finalIndex <= externalCollection._skippedIndexesFromExternal[ i ] ) {\n\t\t\t\t\t\texternalCollection._skippedIndexesFromExternal[ i ]++;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\t// Load the initial content of the collection.\n\t\tfor ( const externalItem of externalCollection ) {\n\t\t\taddItem( null, externalItem, externalCollection.getIndex( externalItem ) );\n\t\t}\n\n\t\t// Synchronize the with collection as new items are added.\n\t\tthis.listenTo<CollectionAddEvent<S>>( externalCollection, 'add', addItem );\n\n\t\t// Synchronize the with collection as new items are removed.\n\t\tthis.listenTo<CollectionRemoveEvent<S>>( externalCollection, 'remove', ( evt, externalItem, index ) => {\n\t\t\tconst item = this._bindToExternalToInternalMap.get( externalItem );\n\n\t\t\tif ( item ) {\n\t\t\t\tthis.remove( item );\n\t\t\t}\n\n\t\t\t// After removing element from external collection we need update/remove indexes\n\t\t\t// of skipped items in internal collection.\n\t\t\tthis._skippedIndexesFromExternal = this._skippedIndexesFromExternal.reduce( ( result, skipped ) => {\n\t\t\t\tif ( index < skipped ) {\n\t\t\t\t\tresult.push( skipped - 1 );\n\t\t\t\t}\n\n\t\t\t\tif ( index > skipped ) {\n\t\t\t\t\tresult.push( skipped );\n\t\t\t\t}\n\n\t\t\t\treturn result;\n\t\t\t}, [] as Array<number> );\n\t\t} );\n\t}\n\n\t/**\n\t * Returns an unique id property for a given `item`.\n\t *\n\t * The method will generate new id and assign it to the `item` if it doesn't have any.\n\t *\n\t * @param item Item to be added.\n\t */\n\tprivate _getItemIdBeforeAdding( item: any ): string {\n\t\tconst idProperty = this._idProperty;\n\t\tlet itemId: string | undefined;\n\n\t\tif ( ( idProperty in item ) ) {\n\t\t\titemId = item[ idProperty ];\n\n\t\t\tif ( typeof itemId != 'string' ) {\n\t\t\t\t/**\n\t\t\t\t * This item's ID should be a string.\n\t\t\t\t *\n\t\t\t\t * @error collection-add-invalid-id\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'collection-add-invalid-id', this );\n\t\t\t}\n\n\t\t\tif ( this.get( itemId ) ) {\n\t\t\t\t/**\n\t\t\t\t * This item already exists in the collection.\n\t\t\t\t *\n\t\t\t\t * @error collection-add-item-already-exists\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'collection-add-item-already-exists', this );\n\t\t\t}\n\t\t} else {\n\t\t\titem[ idProperty ] = itemId = uid();\n\t\t}\n\n\t\treturn itemId;\n\t}\n\n\t/**\n\t * Core {@link #remove} method implementation shared in other functions.\n\t *\n\t * In contrast this method **does not** fire the {@link #event:change} event.\n\t *\n\t * @param subject The item to remove, its id or index in the collection.\n\t * @returns Returns an array with the removed item and its index.\n\t * @fires remove\n\t */\n\tprivate _remove( subject: T | number | string ): [ item: T, index: number ] {\n\t\tlet index: number, id: string, item: T;\n\t\tlet itemDoesNotExist = false;\n\t\tconst idProperty = this._idProperty;\n\n\t\tif ( typeof subject == 'string' ) {\n\t\t\tid = subject;\n\t\t\titem = this._itemMap.get( id )!;\n\t\t\titemDoesNotExist = !item;\n\n\t\t\tif ( item ) {\n\t\t\t\tindex = this._items.indexOf( item );\n\t\t\t}\n\t\t} else if ( typeof subject == 'number' ) {\n\t\t\tindex = subject;\n\t\t\titem = this._items[ index ];\n\t\t\titemDoesNotExist = !item;\n\n\t\t\tif ( item ) {\n\t\t\t\tid = item[ idProperty ]!;\n\t\t\t}\n\t\t} else {\n\t\t\titem = subject;\n\t\t\tid = item[ idProperty ]!;\n\t\t\tindex = this._items.indexOf( item );\n\t\t\titemDoesNotExist = ( index == -1 || !this._itemMap.get( id ) );\n\t\t}\n\n\t\tif ( itemDoesNotExist ) {\n\t\t\t/**\n\t\t\t * Item not found.\n\t\t\t *\n\t\t\t * @error collection-remove-404\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'collection-remove-404', this );\n\t\t}\n\n\t\tthis._items.splice( index!, 1 );\n\t\tthis._itemMap.delete( id! );\n\n\t\tconst externalItem = this._bindToInternalToExternalMap.get( item );\n\t\tthis._bindToInternalToExternalMap.delete( item );\n\t\tthis._bindToExternalToInternalMap.delete( externalItem );\n\n\t\tthis.fire<CollectionRemoveEvent<T>>( 'remove', item, index! );\n\n\t\treturn [ item, index! ];\n\t}\n\n\t/**\n\t * Iterable interface.\n\t */\n\tpublic [ Symbol.iterator ](): Iterator<T> {\n\t\treturn this._items[ Symbol.iterator ]();\n\t}\n}\n\n/**\n * Fired when an item is added to the collection.\n *\n * @eventName ~Collection#add\n * @param item The added item.\n * @param index An index where the addition occurred.\n */\nexport type CollectionAddEvent<T = any> = {\n\tname: 'add';\n\targs: [ item: T, index: number ];\n};\n\n/**\n * Fired when the collection was changed due to adding or removing items.\n *\n * @eventName ~Collection#change\n * @param data Changed items.\n */\nexport type CollectionChangeEvent<T = any> = {\n\tname: 'change';\n\targs: [ data: CollectionChangeEventData<T> ];\n};\n\n/**\n * A structure describing the {@link ~Collection#event:change `Collection#change`} event.\n */\nexport type CollectionChangeEventData<T = any> = {\n\n\t/**\n\t * A list of added items.\n\t */\n\tadded: Iterable<T>;\n\n\t/**\n\t * A list of removed items.\n\t */\n\tremoved: Iterable<T>;\n\n\t/**\n\t * An index where the addition or removal occurred.\n\t */\n\tindex: number;\n};\n\n/**\n * Fired when an item is removed from the collection.\n *\n * @eventName ~Collection#remove\n * @param item The removed item.\n * @param index Index from which item was removed.\n */\nexport type CollectionRemoveEvent<T = any> = {\n\tname: 'remove';\n\targs: [ item: T, index: number ];\n};\n\n/**\n * An object returned by the {@link module:utils/collection~Collection#bindTo `bindTo()`} method\n * providing functions that specify the type of the binding.\n *\n * See the {@link module:utils/collection~Collection#bindTo `bindTo()`} documentation for examples.\n */\nexport interface CollectionBindToChain<S, T> {\n\n\t/**\n\t * Creates the class factory binding in which items of the source collection are passed to\n\t * the constructor of the specified class.\n\t *\n\t * @param Class The class constructor used to create instances in the factory.\n\t */\n\tas( Class: new ( item: S ) => T ): void;\n\n\t/**\n\t * Creates a callback or a property binding.\n\t *\n\t * @param callbackOrProperty When the function is passed, it should return\n\t * the collection items. When the string is provided, the property value is used to create the bound collection items.\n\t */\n\tusing( callbackOrProperty: keyof S | ( ( item: S ) => T | null ) ): void;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/first\n */\n\n/**\n * Returns first item of the given `iterator`.\n */\nexport default function first<T>( iterator: Iterator<T> ): T | null {\n\tconst iteratorItem = iterator.next();\n\n\tif ( iteratorItem.done ) {\n\t\treturn null;\n\t}\n\n\treturn iteratorItem.value;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* global setTimeout, clearTimeout */\n\n/**\n * @module utils/focustracker\n */\n\nimport DomEmitterMixin from './dom/emittermixin';\nimport ObservableMixin from './observablemixin';\nimport CKEditorError from './ckeditorerror';\n\n/**\n * Allows observing a group of `Element`s whether at least one of them is focused.\n *\n * Used by the {@link module:core/editor/editor~Editor} in order to track whether the focus is still within the application,\n * or were used outside of its UI.\n *\n * **Note** `focus` and `blur` listeners use event capturing, so it is only needed to register wrapper `Element`\n * which contain other `focusable` elements. But note that this wrapper element has to be focusable too\n * (have e.g. `tabindex=\"-1\"`).\n *\n * Check out the {@glink framework/deep-dive/ui/focus-tracking \"Deep dive into focus tracking\"} guide to learn more.\n */\nexport default class FocusTracker extends DomEmitterMixin( ObservableMixin() ) {\n\t/**\n\t * True when one of the registered elements is focused.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * The currently focused element.\n\t *\n\t * While {@link #isFocused `isFocused`} remains `true`, the focus can\n\t * move between different UI elements. This property tracks those\n\t * elements and tells which one is currently focused.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public focusedElement: Element | null;\n\n\t/**\n\t * List of registered elements.\n\t */\n\tprivate _elements: Set<Element> = new Set();\n\n\t/**\n\t * Event loop timeout.\n\t */\n\tprivate _nextEventLoopTimeout: ReturnType<typeof setTimeout> | null = null;\n\n\tconstructor() {\n\t\tsuper();\n\n\t\tthis.set( 'isFocused', false );\n\t\tthis.set( 'focusedElement', null );\n\t}\n\n\t/**\n\t * Starts tracking the specified element.\n\t */\n\tpublic add( element: Element ): void {\n\t\tif ( this._elements.has( element ) ) {\n\t\t\t/**\n\t\t\t * This element is already tracked by {@link module:utils/focustracker~FocusTracker}.\n\t\t\t *\n\t\t\t * @error focustracker-add-element-already-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'focustracker-add-element-already-exist', this );\n\t\t}\n\n\t\tthis.listenTo( element, 'focus', () => this._focus( element ), { useCapture: true } );\n\t\tthis.listenTo( element, 'blur', () => this._blur(), { useCapture: true } );\n\t\tthis._elements.add( element );\n\t}\n\n\t/**\n\t * Stops tracking the specified element and stops listening on this element.\n\t */\n\tpublic remove( element: Element ): void {\n\t\tif ( element === this.focusedElement ) {\n\t\t\tthis._blur();\n\t\t}\n\n\t\tif ( this._elements.has( element ) ) {\n\t\t\tthis.stopListening( element );\n\t\t\tthis._elements.delete( element );\n\t\t}\n\t}\n\n\t/**\n\t * Destroys the focus tracker by:\n\t * - Disabling all event listeners attached to tracked elements.\n\t * - Removing all tracked elements that were previously added.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Stores currently focused element and set {@link #isFocused} as `true`.\n\t */\n\tprivate _focus( element: Element ): void {\n\t\tclearTimeout( this._nextEventLoopTimeout! );\n\n\t\tthis.focusedElement = element;\n\t\tthis.isFocused = true;\n\t}\n\n\t/**\n\t * Clears currently focused element and set {@link #isFocused} as `false`.\n\t * This method uses `setTimeout` to change order of fires `blur` and `focus` events.\n\t */\n\tprivate _blur(): void {\n\t\tclearTimeout( this._nextEventLoopTimeout! );\n\n\t\tthis._nextEventLoopTimeout = setTimeout( () => {\n\t\t\tthis.focusedElement = null;\n\t\t\tthis.isFocused = false;\n\t\t}, 0 );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/keystrokehandler\n */\n\nimport DomEmitterMixin, { type DomEmitter } from './dom/emittermixin';\nimport type { Emitter } from './emittermixin';\nimport { getCode, parseKeystroke, type KeystrokeInfo } from './keyboard';\nimport type { PriorityString } from './priorities';\n\n/**\n * Keystroke handler allows registering callbacks for given keystrokes.\n *\n * The most frequent use of this class is through the {@link module:core/editor/editor~Editor#keystrokes `editor.keystrokes`}\n * property. It allows listening to keystrokes executed in the editing view:\n *\n * ```ts\n * editor.keystrokes.set( 'Ctrl+A', ( keyEvtData, cancel ) => {\n * \tconsole.log( 'Ctrl+A has been pressed' );\n * \tcancel();\n * } );\n * ```\n *\n * However, this utility class can be used in various part of the UI. For instance, a certain {@link module:ui/view~View}\n * can use it like this:\n *\n * ```ts\n * class MyView extends View {\n * \tconstructor() {\n * \t\tthis.keystrokes = new KeystrokeHandler();\n *\n * \t\tthis.keystrokes.set( 'tab', handleTabKey );\n * \t}\n *\n * \trender() {\n * \t\tsuper.render();\n *\n * \t\tthis.keystrokes.listenTo( this.element );\n * \t}\n * }\n * ```\n *\n * That keystroke handler will listen to `keydown` events fired in this view's main element.\n *\n */\nexport default class KeystrokeHandler {\n\t/**\n\t * Listener used to listen to events for easier keystroke handler destruction.\n\t */\n\tprivate readonly _listener: DomEmitter;\n\n\t/**\n\t * Creates an instance of the keystroke handler.\n\t */\n\tconstructor() {\n\t\tthis._listener = new ( DomEmitterMixin() )();\n\t}\n\n\t/**\n\t * Starts listening for `keydown` events from a given emitter.\n\t */\n\tpublic listenTo( emitter: Emitter | HTMLElement | Window ): void {\n\t\t// The #_listener works here as a kind of dispatcher. It groups the events coming from the same\n\t\t// keystroke so the listeners can be attached to them with different priorities.\n\t\t//\n\t\t// E.g. all the keystrokes with the `keyCode` of 42 coming from the `emitter` are propagated\n\t\t// as a `_keydown:42` event by the `_listener`. If there's a callback created by the `set`\n\t\t// method for this 42 keystroke, it listens to the `_listener#_keydown:42` event only and interacts\n\t\t// only with other listeners of this particular event, thus making it possible to prioritize\n\t\t// the listeners and safely cancel execution, when needed. Instead of duplicating the Emitter logic,\n\t\t// the KeystrokeHandler re–uses it to do its job.\n\t\tthis._listener.listenTo( emitter as HTMLElement | Window, 'keydown', ( evt, keyEvtData ) => {\n\t\t\tthis._listener.fire( '_keydown:' + getCode( keyEvtData ), keyEvtData );\n\t\t} );\n\t}\n\n\t/**\n\t * Registers a handler for the specified keystroke.\n\t *\n\t * @param keystroke Keystroke defined in a format accepted by\n\t * the {@link module:utils/keyboard~parseKeystroke} function.\n\t * @param callback A function called with the\n\t * {@link module:engine/view/observer/keyobserver~KeyEventData key event data} object and\n\t * a helper function to call both `preventDefault()` and `stopPropagation()` on the underlying event.\n\t * @param options Additional options.\n\t * @param options.priority The priority of the keystroke\n\t * callback. The higher the priority value the sooner the callback will be executed. Keystrokes having the same priority\n\t * are called in the order they were added.\n\t */\n\tpublic set(\n\t\tkeystroke: string | ReadonlyArray<string | number>,\n\t\tcallback: ( ev: KeyboardEvent, cancel: () => void ) => void,\n\t\toptions: { readonly priority?: PriorityString } = {}\n\t): void {\n\t\tconst keyCode = parseKeystroke( keystroke );\n\t\tconst priority = options.priority;\n\n\t\t// Execute the passed callback on KeystrokeHandler#_keydown.\n\t\t// TODO: https://github.com/ckeditor/ckeditor5-utils/issues/144\n\t\tthis._listener.listenTo( this._listener, '_keydown:' + keyCode, ( evt, keyEvtData: KeyboardEvent ) => {\n\t\t\tcallback( keyEvtData, () => {\n\t\t\t\t// Stop the event in the DOM: no listener in the web page\n\t\t\t\t// will be triggered by this event.\n\t\t\t\tkeyEvtData.preventDefault();\n\t\t\t\tkeyEvtData.stopPropagation();\n\n\t\t\t\t// Stop the event in the KeystrokeHandler: no more callbacks\n\t\t\t\t// will be executed for this keystroke.\n\t\t\t\tevt.stop();\n\t\t\t} );\n\n\t\t\t// Mark this keystroke as handled by the callback. See: #press.\n\t\t\tevt.return = true;\n\t\t}, { priority } );\n\t}\n\n\t/**\n\t * Triggers a keystroke handler for a specified key combination, if such a keystroke was {@link #set defined}.\n\t *\n\t * @param keyEvtData Key event data.\n\t * @returns Whether the keystroke was handled.\n\t */\n\tpublic press( keyEvtData: Readonly<KeystrokeInfo> ): boolean {\n\t\treturn !!this._listener.fire( '_keydown:' + getCode( keyEvtData ), keyEvtData );\n\t}\n\n\t/**\n\t * Stops listening to `keydown` events from the given emitter.\n\t */\n\tpublic stopListening( emitter?: Emitter | HTMLElement | Window ): void {\n\t\tthis._listener.stopListening( emitter );\n\t}\n\n\t/**\n\t * Destroys the keystroke handler.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/tomap\n */\n\nimport objectToMap from './objecttomap';\nimport isIterable from './isiterable';\n\n/**\n * Transforms object or iterable to map. Iterable needs to be in the format acceptable by the `Map` constructor.\n *\n * ```ts\n * map = toMap( { 'foo': 1, 'bar': 2 } );\n * map = toMap( [ [ 'foo', 1 ], [ 'bar', 2 ] ] );\n * map = toMap( anotherMap );\n * ```\n *\n * @param data Object or iterable to transform.\n * @returns Map created from data.\n */\nexport default function toMap<T>( data: { readonly [ key: string ]: T } | Iterable<readonly [ string, T ]> | null | undefined ):\n\tMap<string, T>\n{\n\tif ( isIterable( data ) ) {\n\t\treturn new Map( data );\n\t} else {\n\t\treturn objectToMap( data );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/objecttomap\n */\n\n/**\n * Transforms object to map.\n *\n * ```ts\n * const map = objectToMap( { 'foo': 1, 'bar': 2 } );\n * map.get( 'foo' ); // 1\n * ```\n *\n * **Note**: For mixed data (`Object` or `Iterable`) there's a dedicated {@link module:utils/tomap~toMap} function.\n *\n * @param obj Object to transform.\n * @returns Map created from object.\n */\nexport default function objectToMap<T>( obj: { readonly [ key: string ]: T } | null | undefined ): Map<string, T> {\n\tconst map = new Map<string, T>();\n\n\tfor ( const key in obj ) {\n\t\tmap.set( key, obj[ key ] );\n\t}\n\n\treturn map;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Set of utils to handle unicode characters.\n *\n * @module utils/unicode\n */\n\n/**\n * Checks whether given `character` is a combining mark.\n *\n * @param character Character to check.\n */\nexport function isCombiningMark( character: string ): boolean {\n\t// eslint-disable-next-line no-misleading-character-class\n\treturn !!character && character.length == 1 && /[\\u0300-\\u036f\\u1ab0-\\u1aff\\u1dc0-\\u1dff\\u20d0-\\u20ff\\ufe20-\\ufe2f]/.test( character );\n}\n\n/**\n * Checks whether given `character` is a high half of surrogate pair.\n *\n * Using UTF-16 terminology, a surrogate pair denotes UTF-16 character using two UTF-8 characters. The surrogate pair\n * consist of high surrogate pair character followed by low surrogate pair character.\n *\n * @param character Character to check.\n */\nexport function isHighSurrogateHalf( character: string ): boolean {\n\treturn !!character && character.length == 1 && /[\\ud800-\\udbff]/.test( character );\n}\n\n/**\n * Checks whether given `character` is a low half of surrogate pair.\n *\n * Using UTF-16 terminology, a surrogate pair denotes UTF-16 character using two UTF-8 characters. The surrogate pair\n * consist of high surrogate pair character followed by low surrogate pair character.\n *\n * @param character Character to check.\n */\nexport function isLowSurrogateHalf( character: string ): boolean {\n\treturn !!character && character.length == 1 && /[\\udc00-\\udfff]/.test( character );\n}\n\n/**\n * Checks whether given offset in a string is inside a surrogate pair (between two surrogate halves).\n *\n * @param string String to check.\n * @param offset Offset to check.\n */\nexport function isInsideSurrogatePair( string: string, offset: number ): boolean {\n\treturn isHighSurrogateHalf( string.charAt( offset - 1 ) ) && isLowSurrogateHalf( string.charAt( offset ) );\n}\n\n/**\n * Checks whether given offset in a string is between base character and combining mark or between two combining marks.\n *\n * @param string String to check.\n * @param offset Offset to check.\n */\nexport function isInsideCombinedSymbol( string: string, offset: number ): boolean {\n\treturn isCombiningMark( string.charAt( offset ) );\n}\n\nconst EMOJI_PATTERN = buildEmojiRegexp();\n\n/**\n * Checks whether given offset in a string is inside multi-character emoji sequence.\n *\n * @param string String to check.\n * @param offset Offset to check.\n */\nexport function isInsideEmojiSequence( string: string, offset: number ): boolean {\n\tconst matches = String( string ).matchAll( EMOJI_PATTERN );\n\n\treturn Array.from( matches ).some( match => match.index! < offset && offset < match.index! + match[ 0 ].length );\n}\n\nfunction buildEmojiRegexp(): RegExp {\n\tconst parts = [\n\t\t// Emoji Tag Sequence (ETS)\n\t\t/\\p{Emoji}[\\u{E0020}-\\u{E007E}]+\\u{E007F}/u,\n\n\t\t// Emoji Keycap Sequence\n\t\t/\\p{Emoji}\\u{FE0F}?\\u{20E3}/u,\n\n\t\t// Emoji Presentation Sequence\n\t\t/\\p{Emoji}\\u{FE0F}/u,\n\n\t\t// Single-Character Emoji / Emoji Modifier Sequence\n\t\t/(?=\\p{General_Category=Other_Symbol})\\p{Emoji}\\p{Emoji_Modifier}*/u\n\t];\n\n\tconst flagSequence = /\\p{Regional_Indicator}{2}/u.source;\n\tconst emoji = '(?:' + parts.map( part => part.source ).join( '|' ) + ')';\n\tconst sequence = `${ flagSequence }|${ emoji }(?:\\u{200D}${ emoji })*`;\n\n\treturn new RegExp( sequence, 'ug' );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/plugin\n */\n\n/* eslint-disable @typescript-eslint/no-invalid-void-type */\n\nimport { ObservableMixin, type ObservableSetEvent, type EventInfo } from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\n\n/**\n * The base class for CKEditor plugin classes.\n */\nexport default class Plugin extends ObservableMixin() implements PluginInterface {\n\t/**\n\t * The editor instance.\n\t *\n\t * Note that most editors implement the {@link module:core/editor/editor~Editor#ui} property.\n\t * However, editors with an external UI (i.e. Bootstrap-based) or a headless editor may not have this property or\n\t * throw an error when accessing it.\n\t *\n\t * Because of above, to make plugins more universal, it is recommended to split features into:\n\t *  - The \"editing\" part that uses the {@link module:core/editor/editor~Editor} class without `ui` property.\n\t *  - The \"UI\" part that uses the {@link module:core/editor/editor~Editor} class and accesses `ui` property.\n\t */\n\tpublic readonly editor: Editor;\n\n\t/**\n\t * Flag indicating whether a plugin is enabled or disabled.\n\t * A disabled plugin will not transform text.\n\t *\n\t * Plugin can be simply disabled like that:\n\t *\n\t * ```ts\n\t * // Disable the plugin so that no toolbars are visible.\n\t * editor.plugins.get( 'TextTransformation' ).isEnabled = false;\n\t * ```\n\t *\n\t * You can also use {@link #forceDisabled} method.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tpublic declare isEnabled: boolean;\n\n\t/**\n\t * Holds identifiers for {@link #forceDisabled} mechanism.\n\t */\n\tprivate _disableStack = new Set<string>();\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\tthis.editor = editor;\n\n\t\tthis.set( 'isEnabled', true );\n\t}\n\n\t/**\n\t * Disables the plugin.\n\t *\n\t * Plugin may be disabled by multiple features or algorithms (at once). When disabling a plugin, unique id should be passed\n\t * (e.g. feature name). The same identifier should be used when {@link #clearForceDisabled enabling back} the plugin.\n\t * The plugin becomes enabled only after all features {@link #clearForceDisabled enabled it back}.\n\t *\n\t * Disabling and enabling a plugin:\n\t *\n\t * ```ts\n\t * plugin.isEnabled; // -> true\n\t * plugin.forceDisabled( 'MyFeature' );\n\t * plugin.isEnabled; // -> false\n\t * plugin.clearForceDisabled( 'MyFeature' );\n\t * plugin.isEnabled; // -> true\n\t * ```\n\t *\n\t * Plugin disabled by multiple features:\n\t *\n\t * ```ts\n\t * plugin.forceDisabled( 'MyFeature' );\n\t * plugin.forceDisabled( 'OtherFeature' );\n\t * plugin.clearForceDisabled( 'MyFeature' );\n\t * plugin.isEnabled; // -> false\n\t * plugin.clearForceDisabled( 'OtherFeature' );\n\t * plugin.isEnabled; // -> true\n\t * ```\n\t *\n\t * Multiple disabling with the same identifier is redundant:\n\t *\n\t * ```ts\n\t * plugin.forceDisabled( 'MyFeature' );\n\t * plugin.forceDisabled( 'MyFeature' );\n\t * plugin.clearForceDisabled( 'MyFeature' );\n\t * plugin.isEnabled; // -> true\n\t * ```\n\t *\n\t * **Note:** some plugins or algorithms may have more complex logic when it comes to enabling or disabling certain plugins,\n\t * so the plugin might be still disabled after {@link #clearForceDisabled} was used.\n\t *\n\t * @param id Unique identifier for disabling. Use the same id when {@link #clearForceDisabled enabling back} the plugin.\n\t */\n\tpublic forceDisabled( id: string ): void {\n\t\tthis._disableStack.add( id );\n\n\t\tif ( this._disableStack.size == 1 ) {\n\t\t\tthis.on<ObservableSetEvent<boolean>>( 'set:isEnabled', forceDisable, { priority: 'highest' } );\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * Clears forced disable previously set through {@link #forceDisabled}. See {@link #forceDisabled}.\n\t *\n\t * @param id Unique identifier, equal to the one passed in {@link #forceDisabled} call.\n\t */\n\tpublic clearForceDisabled( id: string ): void {\n\t\tthis._disableStack.delete( id );\n\n\t\tif ( this._disableStack.size == 0 ) {\n\t\t\tthis.off( 'set:isEnabled', forceDisable );\n\t\t\tthis.isEnabled = true;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get isContextPlugin(): false {\n\t\treturn false;\n\t}\n}\n\n/**\n * The base interface for CKEditor plugins.\n *\n * In its minimal form a plugin can be a simple function that accepts {@link module:core/editor/editor~Editor the editor}\n * as a parameter:\n *\n * ```ts\n * // A simple plugin that enables a data processor.\n * function MyPlugin( editor ) {\n * \teditor.data.processor = new MyDataProcessor();\n * }\n * ```\n *\n * In most cases however, you will want to inherit from the {@link ~Plugin} class which implements the\n * {@link module:utils/observablemixin~Observable} and is, therefore, more convenient:\n *\n * ```ts\n * class MyPlugin extends Plugin {\n * \tinit() {\n * \t\t// `listenTo()` and `editor` are available thanks to `Plugin`.\n * \t\t// By using `listenTo()` you will ensure that the listener is removed when\n * \t\t// the plugin is destroyed.\n * \t\tthis.listenTo( this.editor.data, 'ready', () => {\n * \t\t\t// Do something when the data is ready.\n * \t\t} );\n * \t}\n * }\n * ```\n *\n * The plugin class can have `pluginName` and `requires` static members. See {@link ~PluginStaticMembers} for more details.\n *\n * The plugin can also implement methods (e.g. {@link ~PluginInterface#init `init()`} or\n * {@link ~PluginInterface#destroy `destroy()`}) which, when present, will be used to properly\n * initialize and destroy the plugin.\n *\n * **Note:** When defined as a plain function, the plugin acts as a constructor and will be\n * called in parallel with other plugins' {@link ~PluginConstructor constructors}.\n * This means the code of that plugin will be executed **before** {@link ~PluginInterface#init `init()`} and\n * {@link ~PluginInterface#afterInit `afterInit()`} methods of other plugins and, for instance,\n * you cannot use it to extend other plugins' {@glink framework/architecture/editing-engine#schema schema}\n * rules as they are defined later on during the `init()` stage.\n */\nexport interface PluginInterface {\n\n\t/**\n\t * The second stage (after plugin constructor) of the plugin initialization.\n\t * Unlike the plugin constructor this method can be asynchronous.\n\t *\n\t * A plugin's `init()` method is called after its {@link ~PluginStaticMembers#requires dependencies} are initialized,\n\t * so in the same order as the constructors of these plugins.\n\t *\n\t * **Note:** This method is optional. A plugin instance does not need to have it defined.\n\t */\n\tinit?(): Promise<unknown> | null | undefined | void;\n\n\t/**\n\t * The third (and last) stage of the plugin initialization. See also {@link ~PluginConstructor} and {@link ~PluginInterface#init}.\n\t *\n\t * **Note:** This method is optional. A plugin instance does not need to have it defined.\n\t */\n\tafterInit?(): Promise<unknown> | null | undefined | void;\n\n\t/**\n\t * Destroys the plugin.\n\t *\n\t * **Note:** This method is optional. A plugin instance does not need to have it defined.\n\t */\n\tdestroy(): Promise<unknown> | null | undefined | void;\n}\n\n/**\n * Creates a new plugin instance. This is the first step of the plugin initialization.\n * See also {@link ~PluginInterface#init} and {@link ~PluginInterface#afterInit}.\n *\n * The plugin static properties should conform to {@link ~PluginStaticMembers `PluginStaticMembers` interface}.\n *\n * A plugin is always instantiated after its {@link ~PluginStaticMembers#requires dependencies} and the\n * {@link ~PluginInterface#init} and {@link ~PluginInterface#afterInit} methods are called in the same order.\n *\n * Usually, you will want to put your plugin's initialization code in the {@link ~PluginInterface#init} method.\n * The constructor can be understood as \"before init\" and used in special cases, just like\n * {@link ~PluginInterface#afterInit} serves the special \"after init\" scenarios (e.g.the code which depends on other\n * plugins, but which does not {@link ~PluginStaticMembers#requires explicitly require} them).\n */\nexport type PluginConstructor<TContext = Editor> =\n\t( PluginClassConstructor<TContext> | PluginFunctionConstructor<TContext> ) & PluginStaticMembers<TContext>;\n\n/**\n * In most cases, you will want to inherit from the {@link ~Plugin} class which implements the\n * {@link module:utils/observablemixin~Observable} and is, therefore, more convenient:\n *\n * ```ts\n * class MyPlugin extends Plugin {\n * \tinit() {\n * \t\t// `listenTo()` and `editor` are available thanks to `Plugin`.\n * \t\t// By using `listenTo()` you will ensure that the listener is removed when\n * \t\t// the plugin is destroyed.\n * \t\tthis.listenTo( this.editor.data, 'ready', () => {\n * \t\t\t// Do something when the data is ready.\n * \t\t} );\n * \t}\n * }\n * ```\n */\nexport type PluginClassConstructor<TContext = Editor> = new ( editor: TContext ) => PluginInterface;\n\n/**\n * In its minimal form a plugin can be a simple function that accepts {@link module:core/editor/editor~Editor the editor}\n * as a parameter:\n *\n * ```ts\n * // A simple plugin that enables a data processor.\n * function MyPlugin( editor ) {\n * \teditor.data.processor = new MyDataProcessor();\n * }\n * ```\n */\nexport type PluginFunctionConstructor<TContext = Editor> = ( editor: TContext ) => void;\n\n/**\n * Static properties of a plugin.\n */\nexport interface PluginStaticMembers<TContext = Editor> {\n\n\t/**\n\t * An array of plugins required by this plugin.\n\t *\n\t * To keep the plugin class definition tight it is recommended to define this property as a static getter:\n\t *\n\t * ```ts\n\t * import Image from './image.js';\n\t *\n\t * export default class ImageCaption {\n\t * \tstatic get requires() {\n\t * \t\treturn [ Image ];\n\t * \t}\n\t * }\n\t * ```\n\t */\n\treadonly requires?: PluginDependencies<TContext>;\n\n\t/**\n\t * An optional name of the plugin. If set, the plugin will be available in\n\t * {@link module:core/plugincollection~PluginCollection#get} by its\n\t * name and its constructor. If not, then only by its constructor.\n\t *\n\t * The name should reflect the constructor name.\n\t *\n\t * To keep the plugin class definition tight, it is recommended to define this property as a static getter:\n\t *\n\t * ```ts\n\t * export default class ImageCaption {\n\t * \tstatic get pluginName() {\n\t * \t\treturn 'ImageCaption';\n\t * \t}\n\t * }\n\t * ```\n\t *\n\t * Note: The native `Function.name` property could not be used to keep the plugin name because\n\t * it will be mangled during code minification.\n\t *\n\t * Naming a plugin is necessary to enable removing it through the\n\t * {@link module:core/editor/editorconfig~EditorConfig#removePlugins `config.removePlugins`} option.\n\t */\n\treadonly pluginName?: string;\n\n\t/**\n\t * A flag which defines if a plugin is allowed or not allowed to be used directly by a {@link module:core/context~Context}.\n\t */\n\treadonly isContextPlugin?: boolean;\n}\n\nexport type PluginDependencies<TContext = Editor> = ReadonlyArray<PluginConstructor<TContext> | string>;\n\n/**\n * An array of loaded plugins.\n */\nexport type LoadedPlugins = Array<PluginInterface>;\n\n/**\n * Helper function that forces plugin to be disabled.\n */\nfunction forceDisable( evt: EventInfo<string, boolean> ) {\n\tevt.return = false;\n\tevt.stop();\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/command\n */\n\nimport {\n\tObservableMixin,\n\ttype EventInfo,\n\ttype ObservableChangeEvent,\n\ttype DecoratedMethodEvent,\n\ttype ObservableSetEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\n\n/**\n * Base class for the CKEditor commands.\n *\n * Commands are the main way to manipulate the editor contents and state. They are mostly used by UI elements (or by other\n * commands) to make changes in the model. Commands are available in every part of the code that has access to\n * the {@link module:core/editor/editor~Editor editor} instance.\n *\n * Instances of registered commands can be retrieved from {@link module:core/editor/editor~Editor#commands `editor.commands`}.\n * The easiest way to execute a command is through {@link module:core/editor/editor~Editor#execute `editor.execute()`}.\n *\n * By default, commands are disabled when the editor is in the {@link module:core/editor/editor~Editor#isReadOnly read-only} mode\n * but commands with the {@link module:core/command~Command#affectsData `affectsData`} flag set to `false` will not be disabled.\n */\nexport default class Command extends ObservableMixin() {\n\t/**\n\t * The editor on which this command will be used.\n\t */\n\tpublic readonly editor: Editor;\n\n\t/**\n\t * The value of the command. A given command class should define what it represents for it.\n\t *\n\t * For example, the `'bold'` command's value indicates whether the selection starts in a bolded text.\n\t * And the value of the `'link'` command may be an object with link details.\n\t *\n\t * It is possible for a command to have no value (e.g. for stateless actions such as `'uploadImage'`).\n\t *\n\t * A given command class should control this value by overriding the {@link #refresh `refresh()`} method.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: unknown;\n\n\t/**\n\t * Flag indicating whether a command is enabled or disabled.\n\t * A disabled command will do nothing when executed.\n\t *\n\t * A given command class should control this value by overriding the {@link #refresh `refresh()`} method.\n\t *\n\t * It is possible to disable a command \"from outside\" using {@link #forceDisabled} method.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * A flag indicating whether a command execution changes the editor data or not.\n\t *\n\t * @see #affectsData\n\t */\n\tprivate _affectsData: boolean;\n\n\t/**\n\t * Holds identifiers for {@link #forceDisabled} mechanism.\n\t */\n\tprivate readonly _disableStack: Set<string>;\n\n\t/**\n\t * Creates a new `Command` instance.\n\t *\n\t * @param editor The editor on which this command will be used.\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\tthis.editor = editor;\n\t\tthis.set( 'value', undefined );\n\t\tthis.set( 'isEnabled', false );\n\n\t\tthis._affectsData = true;\n\t\tthis._disableStack = new Set();\n\n\t\tthis.decorate( 'execute' );\n\n\t\t// By default every command is refreshed when changes are applied to the model.\n\t\tthis.listenTo( this.editor.model.document, 'change', () => {\n\t\t\tthis.refresh();\n\t\t} );\n\n\t\tthis.on<CommandExecuteEvent>( 'execute', evt => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// By default commands are disabled when the editor is in read-only mode.\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( editor, 'change:isReadOnly', ( evt, name, value ) => {\n\t\t\tif ( value && this.affectsData ) {\n\t\t\t\tthis.forceDisabled( 'readOnlyMode' );\n\t\t\t} else {\n\t\t\t\tthis.clearForceDisabled( 'readOnlyMode' );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * A flag indicating whether a command execution changes the editor data or not.\n\t *\n\t * Commands with `affectsData` set to `false` will not be automatically disabled in\n\t * the {@link module:core/editor/editor~Editor#isReadOnly read-only mode} and\n\t * {@glink features/read-only#related-features other editor modes} with restricted user write permissions.\n\t *\n\t * **Note:** You do not have to set it for your every command. It is `true` by default.\n\t *\n\t * @default true\n\t */\n\tpublic get affectsData(): boolean {\n\t\treturn this._affectsData;\n\t}\n\n\tprotected set affectsData( affectsData: boolean ) {\n\t\tthis._affectsData = affectsData;\n\t}\n\n\t/**\n\t * Refreshes the command. The command should update its {@link #isEnabled} and {@link #value} properties\n\t * in this method.\n\t *\n\t * This method is automatically called when\n\t * {@link module:engine/model/document~Document#event:change any changes are applied to the document}.\n\t */\n\tpublic refresh(): void {\n\t\tthis.isEnabled = true;\n\t}\n\n\t/**\n\t * Disables the command.\n\t *\n\t * Command may be disabled by multiple features or algorithms (at once). When disabling a command, unique id should be passed\n\t * (e.g. the feature name). The same identifier should be used when {@link #clearForceDisabled enabling back} the command.\n\t * The command becomes enabled only after all features {@link #clearForceDisabled enabled it back}.\n\t *\n\t * Disabling and enabling a command:\n\t *\n\t * ```ts\n\t * command.isEnabled; // -> true\n\t * command.forceDisabled( 'MyFeature' );\n\t * command.isEnabled; // -> false\n\t * command.clearForceDisabled( 'MyFeature' );\n\t * command.isEnabled; // -> true\n\t * ```\n\t *\n\t * Command disabled by multiple features:\n\t *\n\t * ```ts\n\t * command.forceDisabled( 'MyFeature' );\n\t * command.forceDisabled( 'OtherFeature' );\n\t * command.clearForceDisabled( 'MyFeature' );\n\t * command.isEnabled; // -> false\n\t * command.clearForceDisabled( 'OtherFeature' );\n\t * command.isEnabled; // -> true\n\t * ```\n\t *\n\t * Multiple disabling with the same identifier is redundant:\n\t *\n\t * ```ts\n\t * command.forceDisabled( 'MyFeature' );\n\t * command.forceDisabled( 'MyFeature' );\n\t * command.clearForceDisabled( 'MyFeature' );\n\t * command.isEnabled; // -> true\n\t * ```\n\t *\n\t * **Note:** some commands or algorithms may have more complex logic when it comes to enabling or disabling certain commands,\n\t * so the command might be still disabled after {@link #clearForceDisabled} was used.\n\t *\n\t * @param id Unique identifier for disabling. Use the same id when {@link #clearForceDisabled enabling back} the command.\n\t */\n\tpublic forceDisabled( id: string ): void {\n\t\tthis._disableStack.add( id );\n\n\t\tif ( this._disableStack.size == 1 ) {\n\t\t\tthis.on<ObservableSetEvent<boolean>>( 'set:isEnabled', forceDisable, { priority: 'highest' } );\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * Clears forced disable previously set through {@link #forceDisabled}. See {@link #forceDisabled}.\n\t *\n\t * @param id Unique identifier, equal to the one passed in {@link #forceDisabled} call.\n\t */\n\tpublic clearForceDisabled( id: string ): void {\n\t\tthis._disableStack.delete( id );\n\n\t\tif ( this._disableStack.size == 0 ) {\n\t\t\tthis.off( 'set:isEnabled', forceDisable );\n\t\t\tthis.refresh();\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * A command may accept parameters. They will be passed from {@link module:core/editor/editor~Editor#execute `editor.execute()`}\n\t * to the command.\n\t *\n\t * The `execute()` method will automatically abort when the command is disabled ({@link #isEnabled} is `false`).\n\t * This behavior is implemented by a high priority listener to the {@link #event:execute} event.\n\t *\n\t * In order to see how to disable a command from \"outside\" see the {@link #isEnabled} documentation.\n\t *\n\t * This method may return a value, which would be forwarded all the way down to the\n\t * {@link module:core/editor/editor~Editor#execute `editor.execute()`}.\n\t *\n\t * @fires execute\n\t */\n\tpublic execute( ...args: Array<unknown> ): unknown { return undefined; }\n\n\t/**\n\t * Destroys the command.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n}\n\n/**\n * Helper function that forces command to be disabled.\n */\nfunction forceDisable( evt: EventInfo<string, boolean> ) {\n\tevt.return = false;\n\tevt.stop();\n}\n\n/**\n * Event fired by the {@link module:core/command~Command#execute} method. The command action is a listener to this event so it's\n * possible to change/cancel the behavior of the command by listening to this event.\n *\n * See {@link module:utils/observablemixin~Observable#decorate} for more information and samples.\n *\n * **Note:** This event is fired even if command is disabled. However, it is automatically blocked\n * by a high priority listener in order to prevent command execution.\n *\n * @eventName ~Command#execute\n */\nexport type CommandExecuteEvent = DecoratedMethodEvent<Command, 'execute'>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/multicommand\n */\n\nimport Command from './command';\nimport type Editor from './editor/editor';\n\nimport {\n\tinsertToPriorityArray,\n\ttype PriorityString,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\n/**\n * A CKEditor command that aggregates other commands.\n *\n * This command is used to proxy multiple commands. The multi-command is enabled when\n * at least one of its registered child commands is enabled.\n * When executing a multi-command, the first enabled command with highest priority will be executed.\n *\n * ```ts\n * const multiCommand = new MultiCommand( editor );\n *\n * const commandFoo = new Command( editor );\n * const commandBar = new Command( editor );\n *\n * // Register a child command.\n * multiCommand.registerChildCommand( commandFoo );\n * // Register a child command with a low priority.\n * multiCommand.registerChildCommand( commandBar, { priority: 'low' } );\n *\n * // Enable one of the commands.\n * commandBar.isEnabled = true;\n *\n * multiCommand.execute(); // Will execute commandBar.\n * ```\n */\nexport default class MultiCommand extends Command {\n\t/**\n\t * Registered child commands definitions.\n\t */\n\tprivate _childCommandsDefinitions: Array<{ command: Command; priority: PriorityString }> = [];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\t// Override base command refresh(): the command's state is changed when one of child commands changes states.\n\t}\n\n\t/**\n\t * Executes the first enabled command which has the highest priority of all registered child commands.\n\t *\n\t * @returns The value returned by the {@link module:core/command~Command#execute `command.execute()`}.\n\t */\n\tpublic override execute( ...args: Array<unknown> ): unknown {\n\t\tconst command = this._getFirstEnabledCommand();\n\n\t\treturn !!command && command.execute( args );\n\t}\n\n\t/**\n\t * Registers a child command.\n\t *\n\t * @param options An object with configuration options.\n\t * @param options.priority Priority of a command to register.\n\t */\n\tpublic registerChildCommand(\n\t\tcommand: Command,\n\t\toptions: { priority?: PriorityString } = {}\n\t): void {\n\t\tinsertToPriorityArray( this._childCommandsDefinitions, { command, priority: options.priority || 'normal' } );\n\n\t\t// Change multi-command enabled state when one of registered commands changes state.\n\t\tcommand.on<ObservableChangeEvent<boolean>>( 'change:isEnabled', () => this._checkEnabled() );\n\n\t\tthis._checkEnabled();\n\t}\n\n\t/**\n\t * Checks if any of child commands is enabled.\n\t */\n\tprivate _checkEnabled(): void {\n\t\tthis.isEnabled = !!this._getFirstEnabledCommand();\n\t}\n\n\t/**\n\t * Returns a first enabled command with the highest priority or `undefined` if none of them is enabled.\n\t */\n\tprivate _getFirstEnabledCommand(): Command | undefined {\n\t\tconst commandDefinition = this._childCommandsDefinitions.find( ( { command } ) => command.isEnabled );\n\n\t\treturn commandDefinition && commandDefinition.command;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/plugincollection\n */\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\nimport type { LoadedPlugins, PluginClassConstructor, PluginConstructor, PluginInterface } from './plugin';\n\n/**\n * Manages a list of CKEditor plugins, including loading, resolving dependencies and initialization.\n */\nexport default class PluginCollection<TContext extends object> extends EmitterMixin() implements Iterable<PluginEntry<TContext>> {\n\tprivate _context: TContext;\n\n\tprivate _plugins = new Map<PluginConstructor<TContext> | string, PluginInterface>();\n\n\t/**\n\t * A map of plugin constructors that can be retrieved by their names.\n\t */\n\tprivate _availablePlugins: Map<string, PluginConstructor<TContext>>;\n\n\t/**\n\t * Map of {@link module:core/contextplugin~ContextPlugin context plugins} which can be retrieved by their constructors or instances.\n\t */\n\tprivate _contextPlugins: Map<PluginConstructor<TContext> | PluginInterface, PluginConstructor<TContext> | PluginInterface>;\n\n\t/**\n\t * Creates an instance of the plugin collection class.\n\t * Allows loading and initializing plugins and their dependencies.\n\t * Allows providing a list of already loaded plugins. These plugins will not be destroyed along with this collection.\n\t *\n\t * @param availablePlugins Plugins (constructors) which the collection will be able to use\n\t * when {@link module:core/plugincollection~PluginCollection#init} is used with the plugin names (strings, instead of constructors).\n\t * Usually, the editor will pass its built-in plugins to the collection so they can later be\n\t * used in `config.plugins` or `config.removePlugins` by names.\n\t * @param contextPlugins A list of already initialized plugins represented by a `[ PluginConstructor, pluginInstance ]` pair.\n\t */\n\tconstructor(\n\t\tcontext: TContext,\n\t\tavailablePlugins: Iterable<PluginConstructor<TContext>> = [],\n\t\tcontextPlugins: Iterable<PluginEntry<TContext>> = []\n\t) {\n\t\tsuper();\n\n\t\tthis._context = context;\n\t\tthis._availablePlugins = new Map();\n\n\t\tfor ( const PluginConstructor of availablePlugins ) {\n\t\t\tif ( PluginConstructor.pluginName ) {\n\t\t\t\tthis._availablePlugins.set( PluginConstructor.pluginName, PluginConstructor );\n\t\t\t}\n\t\t}\n\n\t\tthis._contextPlugins = new Map();\n\n\t\tfor ( const [ PluginConstructor, pluginInstance ] of contextPlugins ) {\n\t\t\tthis._contextPlugins.set( PluginConstructor, pluginInstance );\n\t\t\tthis._contextPlugins.set( pluginInstance, PluginConstructor );\n\n\t\t\t// To make it possible to require a plugin by its name.\n\t\t\tif ( PluginConstructor.pluginName ) {\n\t\t\t\tthis._availablePlugins.set( PluginConstructor.pluginName, PluginConstructor );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Returns `[ PluginConstructor, pluginInstance ]` pairs.\n\t */\n\tpublic* [ Symbol.iterator ](): IterableIterator<PluginEntry<TContext>> {\n\t\tfor ( const entry of this._plugins ) {\n\t\t\tif ( typeof entry[ 0 ] == 'function' ) {\n\t\t\t\tyield entry as any;\n\t\t\t}\n\t\t}\n\t}\n\n\tpublic get<TConstructor extends PluginClassConstructor<TContext>>( key: TConstructor ): InstanceType<TConstructor>;\n\tpublic get<TName extends string>( key: TName ): PluginsMap[ TName ];\n\n\t/**\n\t * Gets the plugin instance by its constructor or name.\n\t *\n\t * ```ts\n\t * // Check if 'Clipboard' plugin was loaded.\n\t * if ( editor.plugins.has( 'ClipboardPipeline' ) ) {\n\t * \t// Get clipboard plugin instance\n\t * \tconst clipboard = editor.plugins.get( 'ClipboardPipeline' );\n\t *\n\t * \tthis.listenTo( clipboard, 'inputTransformation', ( evt, data ) => {\n\t * \t\t// Do something on clipboard input.\n\t * \t} );\n\t * }\n\t * ```\n\t *\n\t * **Note**: This method will throw an error if a plugin is not loaded. Use `{@link #has editor.plugins.has()}`\n\t * to check if a plugin is available.\n\t *\n\t * @param key The plugin constructor or {@link module:core/plugin~PluginStaticMembers#pluginName name}.\n\t */\n\tpublic get( key: PluginConstructor<TContext> | string ): PluginInterface {\n\t\tconst plugin = this._plugins.get( key );\n\n\t\tif ( !plugin ) {\n\t\t\tlet pluginName = key;\n\n\t\t\tif ( typeof key == 'function' ) {\n\t\t\t\tpluginName = key.pluginName || key.name;\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * The plugin is not loaded and could not be obtained.\n\t\t\t *\n\t\t\t * Plugin classes (constructors) need to be provided to the editor and must be loaded before they can be obtained from\n\t\t\t * the plugin collection.\n\t\t\t * This is usually done in CKEditor 5 builds by setting the {@link module:core/editor/editor~Editor.builtinPlugins}\n\t\t\t * property.\n\t\t\t *\n\t\t\t * **Note**: You can use `{@link module:core/plugincollection~PluginCollection#has editor.plugins.has()}`\n\t\t\t * to check if a plugin was loaded.\n\t\t\t *\n\t\t\t * @error plugincollection-plugin-not-loaded\n\t\t\t * @param plugin The name of the plugin which is not loaded.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'plugincollection-plugin-not-loaded', this._context, { plugin: pluginName } );\n\t\t}\n\n\t\treturn plugin;\n\t}\n\n\t/**\n\t * Checks if a plugin is loaded.\n\t *\n\t * ```ts\n\t * // Check if the 'Clipboard' plugin was loaded.\n\t * if ( editor.plugins.has( 'ClipboardPipeline' ) ) {\n\t * \t// Now use the clipboard plugin instance:\n\t * \tconst clipboard = editor.plugins.get( 'ClipboardPipeline' );\n\t *\n\t * \t// ...\n\t * }\n\t * ```\n\t *\n\t * @param key The plugin constructor or {@link module:core/plugin~PluginStaticMembers#pluginName name}.\n\t */\n\tpublic has( key: PluginConstructor<TContext> | string ): boolean {\n\t\treturn this._plugins.has( key );\n\t}\n\n\t/**\n\t * Initializes a set of plugins and adds them to the collection.\n\t *\n\t * @param plugins An array of {@link module:core/plugin~PluginInterface plugin constructors}\n\t * or {@link module:core/plugin~PluginStaticMembers#pluginName plugin names}.\n\t * @param pluginsToRemove Names of the plugins or plugin constructors\n\t * that should not be loaded (despite being specified in the `plugins` array).\n\t * @param pluginsSubstitutions An array of {@link module:core/plugin~PluginInterface plugin constructors}\n\t * that will be used to replace plugins of the same names that were passed in `plugins` or that are in their dependency tree.\n\t * A useful option for replacing built-in plugins while creating tests (for mocking their APIs). Plugins that will be replaced\n\t * must follow these rules:\n\t *   * The new plugin must be a class.\n\t *   * The new plugin must be named.\n\t *   * Both plugins must not depend on other plugins.\n\t * @returns A promise which gets resolved once all plugins are loaded and available in the collection.\n\t */\n\tpublic init(\n\t\tplugins: ReadonlyArray<PluginConstructor<TContext> | string>,\n\t\tpluginsToRemove: ReadonlyArray<PluginConstructor<TContext> | string> = [],\n\t\tpluginsSubstitutions: ReadonlyArray<PluginConstructor<TContext>> = []\n\t): Promise<LoadedPlugins> {\n\t\t// Plugin initialization procedure consists of 2 main steps:\n\t\t// 1) collecting all available plugin constructors,\n\t\t// 2) verification whether all required plugins can be instantiated.\n\t\t//\n\t\t// In the first step, all plugin constructors, available in the provided `plugins` array and inside\n\t\t// plugin's dependencies (from the `Plugin.requires` array), are recursively collected and added to the existing\n\t\t// `this._availablePlugins` map, but without any verification at the given moment. Performing the verification\n\t\t// at this point (during the plugin constructor searching) would cause false errors to occur, that some plugin\n\t\t// is missing but in fact it may be defined further in the array as the dependency of other plugin. After\n\t\t// traversing the entire dependency tree, it will be checked if all required \"top level\" plugins are available.\n\t\t//\n\t\t// In the second step, the list of plugins that have not been explicitly removed is traversed to get all the\n\t\t// plugin constructors to be instantiated in the correct order and to validate against some rules. Finally, if\n\t\t// no plugin is missing and no other error has been found, they all will be instantiated.\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias\n\t\tconst that = this;\n\t\tconst context = this._context;\n\n\t\tfindAvailablePluginConstructors( plugins );\n\n\t\tvalidatePlugins( plugins );\n\n\t\tconst pluginsToLoad = plugins.filter( plugin => !isPluginRemoved( plugin, pluginsToRemove ) );\n\n\t\tconst pluginConstructors = [ ...getPluginConstructors( pluginsToLoad ) ];\n\n\t\tsubstitutePlugins( pluginConstructors, pluginsSubstitutions );\n\n\t\tconst pluginInstances = loadPlugins( pluginConstructors );\n\n\t\treturn initPlugins( pluginInstances, 'init' )\n\t\t\t.then( () => initPlugins( pluginInstances, 'afterInit' ) )\n\t\t\t.then( () => pluginInstances );\n\n\t\tfunction isPluginConstructor( plugin: PluginConstructor<TContext> | string | null ): plugin is PluginConstructor<TContext> {\n\t\t\treturn typeof plugin === 'function';\n\t\t}\n\n\t\tfunction isContextPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string | null\n\t\t): plugin is PluginConstructor<TContext> & { isContextPlugin: true } {\n\t\t\treturn isPluginConstructor( plugin ) && !!plugin.isContextPlugin;\n\t\t}\n\n\t\tfunction isPluginRemoved(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tpluginsToRemove: ReadonlyArray<PluginConstructor<TContext> | string>\n\t\t) {\n\t\t\treturn pluginsToRemove.some( removedPlugin => {\n\t\t\t\tif ( removedPlugin === plugin ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tif ( getPluginName( plugin ) === removedPlugin ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tif ( getPluginName( removedPlugin ) === plugin ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\t\t\t} );\n\t\t}\n\n\t\tfunction getPluginName( plugin: PluginConstructor<TContext> | string ) {\n\t\t\treturn isPluginConstructor( plugin ) ?\n\t\t\t\tplugin.pluginName || plugin.name :\n\t\t\t\tplugin;\n\t\t}\n\n\t\tfunction findAvailablePluginConstructors(\n\t\t\tplugins: ReadonlyArray<PluginConstructor<TContext> | string>,\n\t\t\tprocessed = new Set<PluginConstructor<TContext>>()\n\t\t) {\n\t\t\tplugins.forEach( plugin => {\n\t\t\t\tif ( !isPluginConstructor( plugin ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tif ( processed.has( plugin ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tprocessed.add( plugin );\n\n\t\t\t\tif ( plugin.pluginName && !that._availablePlugins.has( plugin.pluginName ) ) {\n\t\t\t\t\tthat._availablePlugins.set( plugin.pluginName, plugin );\n\t\t\t\t}\n\n\t\t\t\tif ( plugin.requires ) {\n\t\t\t\t\tfindAvailablePluginConstructors( plugin.requires, processed );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\tfunction getPluginConstructors(\n\t\t\tplugins: ReadonlyArray<PluginConstructor<TContext> | string>,\n\t\t\tprocessed = new Set<PluginConstructor<TContext>>()\n\t\t) {\n\t\t\treturn plugins\n\t\t\t\t.map( plugin => {\n\t\t\t\t\treturn isPluginConstructor( plugin ) ?\n\t\t\t\t\t\tplugin :\n\t\t\t\t\t\tthat._availablePlugins.get( plugin )!;\n\t\t\t\t} )\n\t\t\t\t.reduce( ( result, plugin ) => {\n\t\t\t\t\tif ( processed.has( plugin ) ) {\n\t\t\t\t\t\treturn result;\n\t\t\t\t\t}\n\n\t\t\t\t\tprocessed.add( plugin );\n\n\t\t\t\t\tif ( plugin.requires ) {\n\t\t\t\t\t\tvalidatePlugins( plugin.requires, plugin );\n\n\t\t\t\t\t\tgetPluginConstructors( plugin.requires, processed ).forEach( plugin => result.add( plugin ) );\n\t\t\t\t\t}\n\n\t\t\t\t\treturn result.add( plugin );\n\t\t\t\t}, new Set<PluginConstructor<TContext>>() );\n\t\t}\n\n\t\tfunction validatePlugins(\n\t\t\tplugins: ReadonlyArray<PluginConstructor<TContext> | string>,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null = null\n\t\t) {\n\t\t\tplugins\n\t\t\t\t.map( plugin => {\n\t\t\t\t\treturn isPluginConstructor( plugin ) ?\n\t\t\t\t\t\tplugin :\n\t\t\t\t\t\tthat._availablePlugins.get( plugin ) || plugin;\n\t\t\t\t} )\n\t\t\t\t.forEach( plugin => {\n\t\t\t\t\tcheckMissingPlugin( plugin, parentPluginConstructor );\n\t\t\t\t\tcheckContextPlugin( plugin, parentPluginConstructor );\n\t\t\t\t\tcheckRemovedPlugin( plugin, parentPluginConstructor );\n\t\t\t\t} );\n\t\t}\n\n\t\tfunction checkMissingPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null\n\t\t) {\n\t\t\tif ( isPluginConstructor( plugin ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( parentPluginConstructor ) {\n\t\t\t\t/**\n\t\t\t\t * A required \"soft\" dependency was not found on the plugin list.\n\t\t\t\t *\n\t\t\t\t * When configuring the editor, either prior to building (via\n\t\t\t\t * {@link module:core/editor/editor~Editor.builtinPlugins `Editor.builtinPlugins`}) or when\n\t\t\t\t * creating a new instance of the editor (e.g. via\n\t\t\t\t * {@link module:core/editor/editorconfig~EditorConfig#plugins `config.plugins`}), you need to provide\n\t\t\t\t * some of the dependencies for other plugins that you used.\n\t\t\t\t *\n\t\t\t\t * This error is thrown when one of these dependencies was not provided. The name of the missing plugin\n\t\t\t\t * can be found in `missingPlugin` and the plugin that required it in `requiredBy`.\n\t\t\t\t *\n\t\t\t\t * In order to resolve it, you need to import the missing plugin and add it to the\n\t\t\t\t * current list of plugins (`Editor.builtinPlugins` or `config.plugins`/`config.extraPlugins`).\n\t\t\t\t *\n\t\t\t\t * Soft requirements were introduced in version 26.0.0. If you happen to stumble upon this error\n\t\t\t\t * when upgrading to version 26.0.0, read also the\n\t\t\t\t * {@glink updating/guides/update-to-26 Migration to 26.0.0} guide.\n\t\t\t\t *\n\t\t\t\t * @error plugincollection-soft-required\n\t\t\t\t * @param missingPlugin The name of the required plugin.\n\t\t\t\t * @param requiredBy The name of the plugin that requires the other plugin.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'plugincollection-soft-required',\n\t\t\t\t\tcontext,\n\t\t\t\t\t{ missingPlugin: plugin, requiredBy: getPluginName( parentPluginConstructor ) }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * A plugin is not available and could not be loaded.\n\t\t\t *\n\t\t\t * Plugin classes (constructors) need to be provided to the editor before they can be loaded by name.\n\t\t\t * This is usually done in CKEditor 5 builds by setting the {@link module:core/editor/editor~Editor.builtinPlugins}\n\t\t\t * property.\n\t\t\t *\n\t\t\t * **If you see this warning when using one of the {@glink installation/getting-started/predefined-builds\n\t\t\t * CKEditor 5 Builds}**,\n\t\t\t * it means that you try to enable a plugin which was not included in that build. This may be due to a typo\n\t\t\t * in the plugin name or simply because that plugin is not a part of this build. In the latter scenario,\n\t\t\t * read more about {@glink installation/getting-started/quick-start custom builds}.\n\t\t\t *\n\t\t\t * **If you see this warning when using one of the editor creators directly** (not a build), then it means\n\t\t\t * that you tried loading plugins by name. However, unlike CKEditor 4, CKEditor 5 does not implement a \"plugin loader\".\n\t\t\t * This means that CKEditor 5 does not know where to load the plugin modules from. Therefore, you need to\n\t\t\t * provide each plugin through a reference (as a constructor function). Check out the examples in\n\t\t\t * {@glink installation/advanced/alternative-setups/integrating-from-source-webpack \"Building from source\"}.\n\t\t\t *\n\t\t\t * @error plugincollection-plugin-not-found\n\t\t\t * @param plugin The name of the plugin which could not be loaded.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-plugin-not-found',\n\t\t\t\tcontext,\n\t\t\t\t{ plugin }\n\t\t\t);\n\t\t}\n\n\t\tfunction checkContextPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null\n\t\t) {\n\t\t\tif ( !isContextPlugin( parentPluginConstructor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( isContextPlugin( plugin ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * If a plugin is a context plugin, all plugins it requires should also be context plugins\n\t\t\t * instead of plugins. In other words, if one plugin can be used in the context,\n\t\t\t * all its requirements should also be ready to be used in the context. Note that the context\n\t\t\t * provides only a part of the API provided by the editor. If one plugin needs a full\n\t\t\t * editor API, all plugins which require it are considered as plugins that need a full\n\t\t\t * editor API.\n\t\t\t *\n\t\t\t * @error plugincollection-context-required\n\t\t\t * @param plugin The name of the required plugin.\n\t\t\t * @param requiredBy The name of the parent plugin.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-context-required',\n\t\t\t\tcontext,\n\t\t\t\t{ plugin: getPluginName( plugin ), requiredBy: getPluginName( parentPluginConstructor ) }\n\t\t\t);\n\t\t}\n\n\t\tfunction checkRemovedPlugin(\n\t\t\tplugin: PluginConstructor<TContext> | string,\n\t\t\tparentPluginConstructor: PluginConstructor<TContext> | null\n\t\t) {\n\t\t\tif ( !parentPluginConstructor ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !isPluginRemoved( plugin, pluginsToRemove ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * Cannot load a plugin because one of its dependencies is listed in the `removePlugins` option.\n\t\t\t *\n\t\t\t * @error plugincollection-required\n\t\t\t * @param plugin The name of the required plugin.\n\t\t\t * @param requiredBy The name of the parent plugin.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-required',\n\t\t\t\tcontext,\n\t\t\t\t{ plugin: getPluginName( plugin ), requiredBy: getPluginName( parentPluginConstructor ) }\n\t\t\t);\n\t\t}\n\n\t\tfunction loadPlugins( pluginConstructors: ReadonlyArray<PluginConstructor<TContext>> ) {\n\t\t\treturn pluginConstructors.map( PluginConstructor => {\n\t\t\t\tlet pluginInstance = that._contextPlugins.get( PluginConstructor ) as ( PluginInterface | undefined );\n\n\t\t\t\tpluginInstance = pluginInstance || new ( PluginConstructor as PluginClassConstructor<TContext> )( context );\n\n\t\t\t\tthat._add( PluginConstructor, pluginInstance );\n\n\t\t\t\treturn pluginInstance;\n\t\t\t} );\n\t\t}\n\n\t\tfunction initPlugins( pluginInstances: ReadonlyArray<PluginInterface>, method: 'init' | 'afterInit' ) {\n\t\t\treturn pluginInstances.reduce<Promise<unknown>>( ( promise, plugin ) => {\n\t\t\t\tif ( !plugin[ method ] ) {\n\t\t\t\t\treturn promise;\n\t\t\t\t}\n\n\t\t\t\tif ( that._contextPlugins.has( plugin ) ) {\n\t\t\t\t\treturn promise;\n\t\t\t\t}\n\n\t\t\t\treturn promise.then( plugin[ method ]!.bind( plugin ) );\n\t\t\t}, Promise.resolve() );\n\t\t}\n\n\t\t/**\n\t\t * Replaces plugin constructors with the specified set of plugins.\n\t\t */\n\t\tfunction substitutePlugins(\n\t\t\tpluginConstructors: Array<PluginConstructor<TContext>>,\n\t\t\tpluginsSubstitutions: ReadonlyArray<PluginConstructor<TContext>>\n\t\t) {\n\t\t\tfor ( const pluginItem of pluginsSubstitutions ) {\n\t\t\t\tif ( typeof pluginItem != 'function' ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The plugin replacing an existing plugin must be a function.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-replace-plugin-invalid-type\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-replace-plugin-invalid-type', null, { pluginItem } );\n\t\t\t\t}\n\n\t\t\t\tconst pluginName = pluginItem.pluginName;\n\n\t\t\t\tif ( !pluginName ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The plugin replacing an existing plugin must have a name.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-replace-plugin-missing-name\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-replace-plugin-missing-name', null, { pluginItem } );\n\t\t\t\t}\n\n\t\t\t\tif ( pluginItem.requires && pluginItem.requires.length ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The plugin replacing an existing plugin cannot depend on other plugins.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-plugin-for-replacing-cannot-have-dependencies\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-plugin-for-replacing-cannot-have-dependencies', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tconst pluginToReplace = that._availablePlugins.get( pluginName );\n\n\t\t\t\tif ( !pluginToReplace ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The replaced plugin does not exist in the\n\t\t\t\t\t * {@link module:core/plugincollection~PluginCollection available plugins} collection.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-plugin-for-replacing-not-exist\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-plugin-for-replacing-not-exist', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tconst indexInPluginConstructors = pluginConstructors.indexOf( pluginToReplace );\n\n\t\t\t\tif ( indexInPluginConstructors === -1 ) {\n\t\t\t\t\t// The Context feature can substitute plugins as well.\n\t\t\t\t\t// It may happen that the editor will be created with the given context, where the plugin for substitute\n\t\t\t\t\t// was already replaced. In such a case, we don't want to do it again.\n\t\t\t\t\tif ( that._contextPlugins.has( pluginToReplace ) ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\t/**\n\t\t\t\t\t * The replaced plugin will not be loaded so it cannot be replaced.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-plugin-for-replacing-not-loaded\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-plugin-for-replacing-not-loaded', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tif ( pluginToReplace.requires && pluginToReplace.requires.length ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The replaced plugin cannot depend on other plugins.\n\t\t\t\t\t *\n\t\t\t\t\t * @error plugincollection-replaced-plugin-cannot-have-dependencies\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError( 'plugincollection-replaced-plugin-cannot-have-dependencies', null, { pluginName } );\n\t\t\t\t}\n\n\t\t\t\tpluginConstructors.splice( indexInPluginConstructors, 1, pluginItem );\n\t\t\t\tthat._availablePlugins.set( pluginName, pluginItem );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Destroys all loaded plugins.\n\t */\n\tpublic destroy(): Promise<unknown> {\n\t\tconst promises: Array<unknown> = [];\n\n\t\tfor ( const [ , pluginInstance ] of this ) {\n\t\t\tif ( typeof pluginInstance.destroy == 'function' && !this._contextPlugins.has( pluginInstance ) ) {\n\t\t\t\tpromises.push( pluginInstance.destroy() );\n\t\t\t}\n\t\t}\n\n\t\treturn Promise.all( promises );\n\t}\n\n\t/**\n\t * Adds the plugin to the collection. Exposed mainly for testing purposes.\n\t *\n\t * @param PluginConstructor The plugin constructor.\n\t * @param plugin The instance of the plugin.\n\t */\n\tprivate _add( PluginConstructor: PluginConstructor<TContext>, plugin: PluginInterface ) {\n\t\tthis._plugins.set( PluginConstructor, plugin );\n\n\t\tconst pluginName = PluginConstructor.pluginName;\n\n\t\tif ( !pluginName ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( this._plugins.has( pluginName ) ) {\n\t\t\t/**\n\t\t\t * Two plugins with the same {@link module:core/plugin~PluginStaticMembers#pluginName} were loaded.\n\t\t\t * This will lead to runtime conflicts between these plugins.\n\t\t\t *\n\t\t\t * In practice, this warning usually means that new plugins were added to an existing CKEditor 5 build.\n\t\t\t * Plugins should always be added to a source version of the editor (`@ckeditor/ckeditor5-editor-*`),\n\t\t\t * not to an editor imported from one of the `@ckeditor/ckeditor5-build-*` packages.\n\t\t\t *\n\t\t\t * Check your import paths and the list of plugins passed to\n\t\t\t * {@link module:core/editor/editor~Editor.create `Editor.create()`}\n\t\t\t * or specified in {@link module:core/editor/editor~Editor.builtinPlugins `Editor.builtinPlugins`}.\n\t\t\t *\n\t\t\t * The second option is that your `node_modules/` directory contains duplicated versions of the same\n\t\t\t * CKEditor 5 packages. Normally, on clean installations, npm deduplicates packages in `node_modules/`, so\n\t\t\t * it may be enough to call `rm -rf node_modules && npm i`. However, if you installed conflicting versions\n\t\t\t * of some packages, their dependencies may need to be installed in more than one version which may lead to this\n\t\t\t * warning.\n\t\t\t *\n\t\t\t * Technically speaking, this error occurs because after adding a plugin to an existing editor build\n\t\t\t * the dependencies of this plugin are being duplicated.\n\t\t\t * They are already built into that editor build and now get added for the second time as dependencies\n\t\t\t * of the plugin you are installing.\n\t\t\t *\n\t\t\t * Read more about {@glink installation/plugins/installing-plugins Installing plugins}.\n\t\t\t *\n\t\t\t * @error plugincollection-plugin-name-conflict\n\t\t\t * @param pluginName The duplicated plugin name.\n\t\t\t * @param plugin1 The first plugin constructor.\n\t\t\t * @param plugin2 The second plugin constructor.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'plugincollection-plugin-name-conflict',\n\t\t\t\tnull,\n\t\t\t\t{ pluginName, plugin1: this._plugins.get( pluginName )!.constructor, plugin2: PluginConstructor }\n\t\t\t);\n\t\t}\n\n\t\tthis._plugins.set( pluginName, plugin );\n\t}\n}\n\n/**\n * A `[ PluginConstructor, pluginInstance ]` pair.\n */\nexport type PluginEntry<TContext> = [ PluginConstructor<TContext>, PluginInterface ];\n\n/**\n * Helper type that maps plugin names to their types.\n * It is meant to be extended with module augmentation.\n *\n * ```ts\n * class MyPlugin extends Plugin {\n * \tpublic static pluginName(): 'MyPlugin' {\n * \t\treturn 'MyPlugin';\n * \t}\n * }\n *\n * declare module '@ckeditor/ckeditor5-core' {\n * \tinterface PluginsMap {\n * \t\t[ MyPlugin.pluginName ]: MyPlugin;\n * \t}\n * }\n *\n * // Returns `MyPlugin`.\n * const myPlugin = editor.plugins.get( 'MyPlugin' );\n * ```\n */\nexport interface PluginsMap {\n\t[ name: string ]: PluginInterface;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/context\n */\n\nimport {\n\tConfig,\n\tCollection,\n\tCKEditorError,\n\tLocale,\n\ttype LocaleTranslate\n} from '@ckeditor/ckeditor5-utils';\n\nimport PluginCollection from './plugincollection';\nimport type Editor from './editor/editor';\nimport type { LoadedPlugins, PluginConstructor } from './plugin';\nimport type { EditorConfig } from './editor/editorconfig';\n\n/**\n * Provides a common, higher-level environment for solutions that use multiple {@link module:core/editor/editor~Editor editors}\n * or plugins that work outside the editor. Use it instead of {@link module:core/editor/editor~Editor.create `Editor.create()`}\n * in advanced application integrations.\n *\n * All configuration options passed to a context will be used as default options for the editor instances initialized in that context.\n *\n * {@link module:core/contextplugin~ContextPlugin Context plugins} passed to a context instance will be shared among all\n * editor instances initialized in this context. These will be the same plugin instances for all the editors.\n *\n * **Note:** The context can only be initialized with {@link module:core/contextplugin~ContextPlugin context plugins}\n * (e.g. [comments](https://ckeditor.com/collaboration/comments/)). Regular {@link module:core/plugin~Plugin plugins} require an\n * editor instance to work and cannot be added to a context.\n *\n * **Note:** You can add a context plugin to an editor instance, though.\n *\n * If you are using multiple editor instances on one page and use any context plugins, create a context to share the configuration and\n * plugins among these editors. Some plugins will use the information about all existing editors to better integrate between them.\n *\n * If you are using plugins that do not require an editor to work (e.g. [comments](https://ckeditor.com/collaboration/comments/)),\n * enable and configure them using the context.\n *\n * If you are using only a single editor on each page, use {@link module:core/editor/editor~Editor.create `Editor.create()`} instead.\n * In such a case, a context instance will be created by the editor instance in a transparent way.\n *\n * See {@link ~Context.create `Context.create()`} for usage examples.\n */\nexport default class Context {\n\t/**\n\t * Stores all the configurations specific to this context instance.\n\t */\n\tpublic readonly config: Config<ContextConfig>;\n\n\t/**\n\t * The plugins loaded and in use by this context instance.\n\t */\n\tpublic readonly plugins: PluginCollection<Context | Editor>;\n\n\tpublic readonly locale: Locale;\n\n\t/**\n\t * Shorthand for {@link module:utils/locale~Locale#t}.\n\t */\n\tpublic readonly t: LocaleTranslate;\n\n\t/**\n\t * A list of editors that this context instance is injected to.\n\t */\n\tpublic readonly editors: Collection<Editor>;\n\n\t/**\n\t * The default configuration which is built into the `Context` class.\n\t *\n\t * It is used in CKEditor 5 builds featuring `Context` to provide the default configuration options which are later used during the\n\t * context initialization.\n\t *\n\t * ```ts\n\t * Context.defaultConfig = {\n\t * \tfoo: 1,\n\t * \tbar: 2\n\t * };\n\t *\n\t * Context\n\t * \t.create()\n\t * \t.then( context => {\n\t * \t\tcontext.config.get( 'foo' ); // -> 1\n\t * \t\tcontext.config.get( 'bar' ); // -> 2\n\t * \t} );\n\t *\n\t * // The default options can be overridden by the configuration passed to create().\n\t * Context\n\t * \t.create( { bar: 3 } )\n\t * \t.then( context => {\n\t * \t\tcontext.config.get( 'foo' ); // -> 1\n\t * \t\tcontext.config.get( 'bar' ); // -> 3\n\t * \t} );\n\t * ```\n\t *\n\t * See also {@link module:core/context~Context.builtinPlugins `Context.builtinPlugins`}\n\t * and {@link module:core/editor/editor~Editor.defaultConfig `Editor.defaultConfig`}.\n\t */\n\tpublic static defaultConfig: ContextConfig;\n\n\t/**\n\t * An array of plugins built into the `Context` class.\n\t *\n\t * It is used in CKEditor 5 builds featuring `Context` to provide a list of context plugins which are later automatically initialized\n\t * during the context initialization.\n\t *\n\t * They will be automatically initialized by `Context` unless `config.plugins` is passed.\n\t *\n\t * ```ts\n\t * // Build some context plugins into the Context class first.\n\t * Context.builtinPlugins = [ FooPlugin, BarPlugin ];\n\t *\n\t * // Normally, you need to define config.plugins, but since Context.builtinPlugins was\n\t * // defined, now you can call create() without any configuration.\n\t * Context\n\t * \t.create()\n\t * \t.then( context => {\n\t * \t\tcontext.plugins.get( FooPlugin ); // -> An instance of the Foo plugin.\n\t * \t\tcontext.plugins.get( BarPlugin ); // -> An instance of the Bar plugin.\n\t * \t} );\n\t * ```\n\t *\n\t * See also {@link module:core/context~Context.defaultConfig `Context.defaultConfig`}\n\t * and {@link module:core/editor/editor~Editor.builtinPlugins `Editor.builtinPlugins`}.\n\t */\n\tpublic static builtinPlugins: Array<PluginConstructor<Context | Editor>>;\n\n\t/**\n\t * Reference to the editor which created the context.\n\t * Null when the context was created outside of the editor.\n\t *\n\t * It is used to destroy the context when removing the editor that has created the context.\n\t */\n\tprivate _contextOwner: Editor | null = null;\n\n\t/**\n\t * Creates a context instance with a given configuration.\n\t *\n\t * Usually not to be used directly. See the static {@link module:core/context~Context.create `create()`} method.\n\t *\n\t * @param config The context configuration.\n\t */\n\tconstructor( config?: ContextConfig ) {\n\t\tthis.config = new Config<ContextConfig>( config, ( this.constructor as typeof Context ).defaultConfig );\n\n\t\tconst availablePlugins = ( this.constructor as typeof Context ).builtinPlugins;\n\n\t\tthis.config.define( 'plugins', availablePlugins );\n\n\t\tthis.plugins = new PluginCollection<Context | Editor>( this, availablePlugins );\n\n\t\tconst languageConfig = this.config.get( 'language' ) || {};\n\n\t\tthis.locale = new Locale( {\n\t\t\tuiLanguage: typeof languageConfig === 'string' ? languageConfig : languageConfig.ui,\n\t\t\tcontentLanguage: this.config.get( 'language.content' )\n\t\t} );\n\n\t\tthis.t = this.locale.t;\n\n\t\tthis.editors = new Collection<Editor>();\n\t}\n\n\t/**\n\t * Loads and initializes plugins specified in the configuration.\n\t *\n\t * @returns A promise which resolves once the initialization is completed, providing an array of loaded plugins.\n\t */\n\tpublic initPlugins(): Promise<LoadedPlugins> {\n\t\tconst plugins = this.config.get( 'plugins' ) || [];\n\t\tconst substitutePlugins = this.config.get( 'substitutePlugins' ) || [];\n\n\t\t// Plugins for substitution should be checked as well.\n\t\tfor ( const Plugin of plugins.concat( substitutePlugins ) ) {\n\t\t\tif ( typeof Plugin != 'function' ) {\n\t\t\t\t/**\n\t\t\t\t * Only a constructor function is allowed as a {@link module:core/contextplugin~ContextPlugin context plugin}.\n\t\t\t\t *\n\t\t\t\t * @error context-initplugins-constructor-only\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'context-initplugins-constructor-only',\n\t\t\t\t\tnull,\n\t\t\t\t\t{ Plugin }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tif ( Plugin.isContextPlugin !== true ) {\n\t\t\t\t/**\n\t\t\t\t * Only a plugin marked as a {@link module:core/contextplugin~ContextPlugin.isContextPlugin context plugin}\n\t\t\t\t * is allowed to be used with a context.\n\t\t\t\t *\n\t\t\t\t * @error context-initplugins-invalid-plugin\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'context-initplugins-invalid-plugin',\n\t\t\t\t\tnull,\n\t\t\t\t\t{ Plugin }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\n\t\treturn this.plugins.init( plugins, [], substitutePlugins );\n\t}\n\n\t/**\n\t * Destroys the context instance and all editors used with the context,\n\t * releasing all resources used by the context.\n\t *\n\t * @returns A promise that resolves once the context instance is fully destroyed.\n\t */\n\tpublic destroy(): Promise<unknown> {\n\t\treturn Promise.all( Array.from( this.editors, editor => editor.destroy() ) )\n\t\t\t.then( () => this.plugins.destroy() );\n\t}\n\n\t/**\n\t * Adds a reference to the editor which is used with this context.\n\t *\n\t * When the given editor has created the context, the reference to this editor will be stored\n\t * as a {@link ~Context#_contextOwner}.\n\t *\n\t * This method should only be used by the editor.\n\t *\n\t * @internal\n\t * @param isContextOwner Stores the given editor as a context owner.\n\t */\n\tpublic _addEditor( editor: Editor, isContextOwner: boolean ): void {\n\t\tif ( this._contextOwner ) {\n\t\t\t/**\n\t\t\t * Cannot add multiple editors to the context which is created by the editor.\n\t\t\t *\n\t\t\t * @error context-addeditor-private-context\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'context-addeditor-private-context' );\n\t\t}\n\n\t\tthis.editors.add( editor );\n\n\t\tif ( isContextOwner ) {\n\t\t\tthis._contextOwner = editor;\n\t\t}\n\t}\n\n\t/**\n\t * Removes a reference to the editor which was used with this context.\n\t * When the context was created by the given editor, the context will be destroyed.\n\t *\n\t * This method should only be used by the editor.\n\t *\n\t * @internal\n\t * @return A promise that resolves once the editor is removed from the context or when the context was destroyed.\n\t */\n\tpublic _removeEditor( editor: Editor ): Promise<unknown> {\n\t\tif ( this.editors.has( editor ) ) {\n\t\t\tthis.editors.remove( editor );\n\t\t}\n\n\t\tif ( this._contextOwner === editor ) {\n\t\t\treturn this.destroy();\n\t\t}\n\n\t\treturn Promise.resolve();\n\t}\n\n\t/**\n\t * Returns the context configuration which will be copied to the editors created using this context.\n\t *\n\t * The configuration returned by this method has the plugins configuration removed &mdash; plugins are shared with all editors\n\t * through another mechanism.\n\t *\n\t * This method should only be used by the editor.\n\t *\n\t * @internal\n\t * @returns Configuration as a plain object.\n\t */\n\tpublic _getEditorConfig(): Partial<EditorConfig> {\n\t\tconst result: Record<string, unknown> = {};\n\n\t\tfor ( const name of this.config.names() ) {\n\t\t\tif ( ![ 'plugins', 'removePlugins', 'extraPlugins' ].includes( name ) ) {\n\t\t\t\tresult[ name ] = this.config.get( name );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Creates and initializes a new context instance.\n\t *\n\t * ```ts\n\t * const commonConfig = { ... }; // Configuration for all the plugins and editors.\n\t * const editorPlugins = [ ... ]; // Regular plugins here.\n\t *\n\t * Context\n\t * \t.create( {\n\t * \t\t// Only context plugins here.\n\t * \t\tplugins: [ ... ],\n\t *\n\t * \t\t// Configure the language for all the editors (it cannot be overwritten).\n\t * \t\tlanguage: { ... },\n\t *\n\t * \t\t// Configuration for context plugins.\n\t * \t\tcomments: { ... },\n\t * \t\t...\n\t *\n\t * \t\t// Default configuration for editor plugins.\n\t * \t\ttoolbar: { ... },\n\t * \t\timage: { ... },\n\t * \t\t...\n\t * \t} )\n\t * \t.then( context => {\n\t * \t\tconst promises = [];\n\t *\n\t * \t\tpromises.push( ClassicEditor.create(\n\t * \t\t\tdocument.getElementById( 'editor1' ),\n\t * \t\t\t{\n\t * \t\t\t\teditorPlugins,\n\t * \t\t\t\tcontext\n\t * \t\t\t}\n\t * \t\t) );\n\t *\n\t * \t\tpromises.push( ClassicEditor.create(\n\t * \t\t\tdocument.getElementById( 'editor2' ),\n\t * \t\t\t{\n\t * \t\t\t\teditorPlugins,\n\t * \t\t\t\tcontext,\n\t * \t\t\t\ttoolbar: { ... } // You can overwrite the configuration of the context.\n\t * \t\t\t}\n\t * \t\t) );\n\t *\n\t * \t\treturn Promise.all( promises );\n\t * \t} );\n\t * ```\n\t *\n\t * @param config The context configuration.\n\t * @returns A promise resolved once the context is ready. The promise resolves with the created context instance.\n\t */\n\tpublic static create( config?: ContextConfig ): Promise<Context> {\n\t\treturn new Promise( resolve => {\n\t\t\tconst context = new this( config );\n\n\t\t\tresolve( context.initPlugins().then( () => context ) );\n\t\t} );\n\t}\n}\n\n/**\n * The context configuration.\n */\nexport type ContextConfig = {\n\tplugins?: Array<PluginConstructor<Context | Editor>>;\n\tsubstitutePlugins?: Array<PluginConstructor<Context | Editor>>;\n} & Omit<EditorConfig, 'plugins' | 'substitutePlugins' | 'removePlugins' | 'extraPlugins'>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/contextplugin\n */\n\nimport {\n\tObservableMixin,\n\ttype Collection,\n\ttype Config,\n\ttype Locale,\n\ttype LocaleTranslate\n} from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\nimport type { EditorConfig } from './editor/editorconfig';\nimport type Context from './context';\nimport type { PluginDependencies, PluginInterface } from './plugin';\nimport type PluginCollection from './plugincollection';\n\n/**\n * The base class for {@link module:core/context~Context} plugin classes.\n *\n * A context plugin can either be initialized for an {@link module:core/editor/editor~Editor editor} or for\n * a {@link module:core/context~Context context}. In other words, it can either\n * work within one editor instance or with one or more editor instances that use a single context.\n * It is the context plugin's role to implement handling for both modes.\n *\n * There are a few rules for interaction between the editor plugins and context plugins:\n *\n * * A context plugin can require another context plugin.\n * * An {@link module:core/plugin~Plugin editor plugin} can require a context plugin.\n * * A context plugin MUST NOT require an {@link module:core/plugin~Plugin editor plugin}.\n */\nexport default class ContextPlugin extends ObservableMixin() implements PluginInterface {\n\t/**\n\t * The context or editor instance.\n\t */\n\tpublic readonly context: ContextInterface;\n\n\t/**\n\t * Creates a new plugin instance.\n\t */\n\tconstructor( context: Context | Editor ) {\n\t\tsuper();\n\n\t\tthis.context = context as ContextInterface;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get isContextPlugin(): true {\n\t\treturn true;\n\t}\n}\n\n/**\n * The common interface of {@link module:core/context~Context} and {@link module:core/editor/editor~Editor}.\n */\nexport interface ContextInterface {\n\tconfig: Config<Omit<EditorConfig, 'plugins' | 'substitutePlugins' | 'removePlugins' | 'extraPlugins'>>;\n\tplugins: PluginCollection<Context | Editor>;\n\tlocale: Locale;\n\tt: LocaleTranslate;\n\teditors?: Collection<Editor>;\n}\n\nexport type ContextPluginDependencies = PluginDependencies<Context | Editor>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editingkeystrokehandler\n */\n\nimport { KeystrokeHandler, type PriorityString } from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from './editor/editor';\n\n/**\n * A keystroke handler for editor editing. Its instance is available\n * in {@link module:core/editor/editor~Editor#keystrokes} so plugins\n * can register their keystrokes.\n *\n * E.g. an undo plugin would do this:\n *\n * ```ts\n * editor.keystrokes.set( 'Ctrl+Z', 'undo' );\n * editor.keystrokes.set( 'Ctrl+Shift+Z', 'redo' );\n * editor.keystrokes.set( 'Ctrl+Y', 'redo' );\n * ```\n */\nexport default class EditingKeystrokeHandler extends KeystrokeHandler {\n\t/**\n\t * The editor instance.\n\t */\n\tpublic readonly editor: Editor;\n\n\t/**\n\t * Creates an instance of the keystroke handler.\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\t\tthis.editor = editor;\n\t}\n\n\t/**\n\t * Registers a handler for the specified keystroke.\n\t *\n\t * The handler can be specified as a command name or a callback.\n\t *\n\t * @param keystroke Keystroke defined in a format accepted by\n\t * the {@link module:utils/keyboard~parseKeystroke} function.\n\t * @param callback If a string is passed, then the keystroke will\n\t * {@link module:core/editor/editor~Editor#execute execute a command}.\n\t * If a function, then it will be called with the\n\t * {@link module:engine/view/observer/keyobserver~KeyEventData key event data} object and\n\t * a `cancel()` helper to both `preventDefault()` and `stopPropagation()` of the event.\n\t * @param options Additional options.\n\t * @param options.priority The priority of the keystroke callback. The higher the priority value\n\t * the sooner the callback will be executed. Keystrokes having the same priority\n\t * are called in the order they were added.\n\t */\n\tpublic override set(\n\t\tkeystroke: string | Array<string | number>,\n\t\tcallback: EditingKeystrokeCallback,\n\t\toptions: { readonly priority?: PriorityString } = {}\n\t): void {\n\t\tif ( typeof callback == 'string' ) {\n\t\t\tconst commandName = callback;\n\n\t\t\tcallback = ( evtData, cancel ) => {\n\t\t\t\tthis.editor.execute( commandName );\n\t\t\t\tcancel();\n\t\t\t};\n\t\t}\n\n\t\tsuper.set( keystroke, callback, options );\n\t}\n}\n\n/**\n * Command name or a callback to be executed when a given keystroke is pressed.\n */\nexport type EditingKeystrokeCallback = string | ( ( ev: KeyboardEvent, cancel: () => void ) => void );\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./placeholder.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/placeholder\n */\n\nimport '../../theme/placeholder.css';\n\nimport type Document from './document';\nimport type DowncastWriter from './downcastwriter';\nimport type Element from './element';\nimport type View from './view';\n\nimport type { ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\n// Each document stores information about its placeholder elements and check functions.\nconst documentPlaceholders = new WeakMap<Document, Map<Element, PlaceholderConfig>>();\n\n/**\n * A helper that enables a placeholder on the provided view element (also updates its visibility).\n * The placeholder is a CSS pseudo–element (with a text content) attached to the element.\n *\n * To change the placeholder text, simply call this method again with new options.\n *\n * To disable the placeholder, use {@link module:engine/view/placeholder~disablePlaceholder `disablePlaceholder()`} helper.\n *\n * @param options Configuration options of the placeholder.\n * @param options.view Editing view instance.\n * @param options.element Element that will gain a placeholder. See `options.isDirectHost` to learn more.\n * @param options.text Placeholder text.\n * @param options.isDirectHost If set `false`, the placeholder will not be enabled directly\n * in the passed `element` but in one of its children (selected automatically, i.e. a first empty child element).\n * Useful when attaching placeholders to elements that can host other elements (not just text), for instance,\n * editable root elements.\n * @param options.keepOnFocus If set `true`, the placeholder stay visible when the host element is focused.\n */\nexport function enablePlaceholder( { view, element, text, isDirectHost = true, keepOnFocus = false }: {\n\tview: View;\n\telement: Element;\n\ttext: string;\n\tisDirectHost?: boolean;\n\tkeepOnFocus?: boolean;\n} ): void {\n\tconst doc = view.document;\n\n\t// Use a single a single post fixer per—document to update all placeholders.\n\tif ( !documentPlaceholders.has( doc ) ) {\n\t\tdocumentPlaceholders.set( doc, new Map() );\n\n\t\t// If a post-fixer callback makes a change, it should return `true` so other post–fixers\n\t\t// can re–evaluate the document again.\n\t\tdoc.registerPostFixer( writer => updateDocumentPlaceholders( doc, writer ) );\n\n\t\t// Update placeholders on isComposing state change since rendering is disabled while in composition mode.\n\t\tdoc.on<ObservableChangeEvent>( 'change:isComposing', () => {\n\t\t\tview.change( writer => updateDocumentPlaceholders( doc, writer ) );\n\t\t}, { priority: 'high' } );\n\t}\n\n\t// Store information about the element placeholder under its document.\n\tdocumentPlaceholders.get( doc )!.set( element, {\n\t\ttext,\n\t\tisDirectHost,\n\t\tkeepOnFocus,\n\t\thostElement: isDirectHost ? element : null\n\t} );\n\n\t// Update the placeholders right away.\n\tview.change( writer => updateDocumentPlaceholders( doc, writer ) );\n}\n\n/**\n * Disables the placeholder functionality from a given element.\n *\n * See {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} to learn more.\n */\nexport function disablePlaceholder( view: View, element: Element ): void {\n\tconst doc = element.document;\n\n\tif ( !documentPlaceholders.has( doc ) ) {\n\t\treturn;\n\t}\n\n\tview.change( writer => {\n\t\tconst placeholders = documentPlaceholders.get( doc )!;\n\t\tconst config = placeholders.get( element )!;\n\n\t\twriter.removeAttribute( 'data-placeholder', config.hostElement! );\n\t\thidePlaceholder( writer, config.hostElement! );\n\n\t\tplaceholders.delete( element );\n\t} );\n}\n\n/**\n * Shows a placeholder in the provided element by changing related attributes and CSS classes.\n *\n * **Note**: This helper will not update the placeholder visibility nor manage the\n * it in any way in the future. What it does is a one–time state change of an element. Use\n * {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} and\n * {@link module:engine/view/placeholder~disablePlaceholder `disablePlaceholder()`} for full\n * placeholder functionality.\n *\n * **Note**: This helper will blindly show the placeholder directly in the root editable element if\n * one is passed, which could result in a visual clash if the editable element has some children\n * (for instance, an empty paragraph). Use {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`}\n * in that case or make sure the correct element is passed to the helper.\n *\n * @returns `true`, if any changes were made to the `element`.\n */\nexport function showPlaceholder( writer: DowncastWriter, element: Element ): boolean {\n\tif ( !element.hasClass( 'ck-placeholder' ) ) {\n\t\twriter.addClass( 'ck-placeholder', element );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Hides a placeholder in the element by changing related attributes and CSS classes.\n *\n * **Note**: This helper will not update the placeholder visibility nor manage the\n * it in any way in the future. What it does is a one–time state change of an element. Use\n * {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} and\n * {@link module:engine/view/placeholder~disablePlaceholder `disablePlaceholder()`} for full\n * placeholder functionality.\n *\n * @returns `true`, if any changes were made to the `element`.\n */\nexport function hidePlaceholder( writer: DowncastWriter, element: Element ): boolean {\n\tif ( element.hasClass( 'ck-placeholder' ) ) {\n\t\twriter.removeClass( 'ck-placeholder', element );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Checks if a placeholder should be displayed in the element.\n *\n * **Note**: This helper will blindly check the possibility of showing a placeholder directly in the\n * root editable element if one is passed, which may not be the expected result. If an element can\n * host other elements (not just text), most likely one of its children should be checked instead\n * because it will be the final host for the placeholder. Use\n * {@link module:engine/view/placeholder~enablePlaceholder `enablePlaceholder()`} in that case or make\n * sure the correct element is passed to the helper.\n *\n * @param element Element that holds the placeholder.\n * @param keepOnFocus Focusing the element will keep the placeholder visible.\n */\nexport function needsPlaceholder( element: Element, keepOnFocus: boolean ): boolean {\n\tif ( !element.isAttached() ) {\n\t\treturn false;\n\t}\n\n\t// Anything but uiElement(s) counts as content.\n\tconst hasContent = Array.from( element.getChildren() )\n\t\t.some( element => !element.is( 'uiElement' ) );\n\n\tif ( hasContent ) {\n\t\treturn false;\n\t}\n\n\tconst doc = element.document;\n\tconst viewSelection = doc.selection;\n\tconst selectionAnchor = viewSelection.anchor;\n\n\tif ( doc.isComposing && selectionAnchor && selectionAnchor.parent === element ) {\n\t\treturn false;\n\t}\n\n\t// Skip the focus check and make the placeholder visible already regardless of document focus state.\n\tif ( keepOnFocus ) {\n\t\treturn true;\n\t}\n\n\t// If the document is blurred.\n\tif ( !doc.isFocused ) {\n\t\treturn true;\n\t}\n\n\t// If document is focused and the element is empty but the selection is not anchored inside it.\n\treturn !!selectionAnchor && selectionAnchor.parent !== element;\n}\n\n/**\n * Updates all placeholders associated with a document in a post–fixer callback.\n *\n * @returns True if any changes were made to the view document.\n */\nfunction updateDocumentPlaceholders( doc: Document, writer: DowncastWriter ): boolean {\n\tconst placeholders = documentPlaceholders.get( doc )!;\n\tconst directHostElements: Array<Element> = [];\n\tlet wasViewModified = false;\n\n\t// First set placeholders on the direct hosts.\n\tfor ( const [ element, config ] of placeholders ) {\n\t\tif ( config.isDirectHost ) {\n\t\t\tdirectHostElements.push( element );\n\n\t\t\tif ( updatePlaceholder( writer, element, config ) ) {\n\t\t\t\twasViewModified = true;\n\t\t\t}\n\t\t}\n\t}\n\n\t// Then set placeholders on the indirect hosts but only on those that does not already have an direct host placeholder.\n\tfor ( const [ element, config ] of placeholders ) {\n\t\tif ( config.isDirectHost ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst hostElement = getChildPlaceholderHostSubstitute( element );\n\n\t\t// When not a direct host, it could happen that there is no child element\n\t\t// capable of displaying a placeholder.\n\t\tif ( !hostElement ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Don't override placeholder if the host element already has some direct placeholder.\n\t\tif ( directHostElements.includes( hostElement ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Update the host element (used for setting and removing the placeholder).\n\t\tconfig.hostElement = hostElement;\n\n\t\tif ( updatePlaceholder( writer, element, config ) ) {\n\t\t\twasViewModified = true;\n\t\t}\n\t}\n\n\treturn wasViewModified;\n}\n\n/**\n * Updates a single placeholder in a post–fixer callback.\n *\n * @returns True if any changes were made to the view document.\n */\nfunction updatePlaceholder( writer: DowncastWriter, element: Element, config: PlaceholderConfig ) {\n\tconst { text, isDirectHost, hostElement } = config;\n\n\tlet wasViewModified = false;\n\n\t// This may be necessary when updating the placeholder text to something else.\n\tif ( hostElement!.getAttribute( 'data-placeholder' ) !== text ) {\n\t\twriter.setAttribute( 'data-placeholder', text, hostElement! );\n\t\twasViewModified = true;\n\t}\n\n\t// If the host element is not a direct host then placeholder is needed only when there is only one element.\n\tconst isOnlyChild = isDirectHost || element.childCount == 1;\n\n\tif ( isOnlyChild && needsPlaceholder( hostElement!, config.keepOnFocus ) ) {\n\t\tif ( showPlaceholder( writer, hostElement! ) ) {\n\t\t\twasViewModified = true;\n\t\t}\n\t} else if ( hidePlaceholder( writer, hostElement! ) ) {\n\t\twasViewModified = true;\n\t}\n\n\treturn wasViewModified;\n}\n\n/**\n * Gets a child element capable of displaying a placeholder if a parent element can host more\n * than just text (for instance, when it is a root editable element). The child element\n * can then be used in other placeholder helpers as a substitute of its parent.\n */\nfunction getChildPlaceholderHostSubstitute( parent: Element ): Element | null {\n\tif ( parent.childCount ) {\n\t\tconst firstChild = parent.getChild( 0 )!;\n\n\t\tif ( firstChild.is( 'element' ) && !firstChild.is( 'uiElement' ) && !firstChild.is( 'attributeElement' ) ) {\n\t\t\treturn firstChild;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Configuration of the placeholder.\n */\ninterface PlaceholderConfig {\n\ttext: string;\n\tisDirectHost: boolean;\n\tkeepOnFocus: boolean;\n\thostElement: Element | null;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type AttributeElement from './attributeelement';\nimport type ContainerElement from './containerelement';\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type EditableElement from './editableelement';\nimport type Element from './element';\nimport type EmptyElement from './emptyelement';\nimport type Node from './node';\nimport type Position from './position';\nimport type Range from './range';\nimport type RawElement from './rawelement';\nimport type RootEditableElement from './rooteditableelement';\nimport type Selection from './selection';\nimport type Text from './text';\nimport type TextProxy from './textproxy';\nimport type UIElement from './uielement';\n\n/**\n * @module engine/view/typecheckable\n */\n\nexport default abstract class TypeCheckable {\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/node~Node} or its subclass.\n\t *\n\t * This method is useful when processing view objects that are of unknown type. For example, a function\n\t * may return a {@link module:engine/view/documentfragment~DocumentFragment} or a {@link module:engine/view/node~Node}\n\t * that can be either a text node or an element. This method can be used to check what kind of object is returned.\n\t *\n\t * ```ts\n\t * someObject.is( 'element' ); // -> true if this is an element\n\t * someObject.is( 'node' ); // -> true if this is a node (a text node or an element)\n\t * someObject.is( 'documentFragment' ); // -> true if this is a document fragment\n\t * ```\n\t *\n\t * Since this method is also available on a range of model objects, you can prefix the type of the object with\n\t * `model:` or `view:` to check, for example, if this is the model's or view's element:\n\t *\n\t * ```ts\n\t * viewElement.is( 'view:element' ); // -> true\n\t * viewElement.is( 'model:element' ); // -> false\n\t * ```\n\t *\n\t * By using this method it is also possible to check a name of an element:\n\t *\n\t * ```ts\n\t * imgElement.is( 'element', 'img' ); // -> true\n\t * imgElement.is( 'view:element', 'img' ); // -> same as above, but more precise\n\t * ```\n\t * @label NODE\n\t */\n\tpublic is( type: 'node' | 'view:node' ): this is (\n\t\tNode |\n\t\tText |\n\t\tElement |\n\t\tAttributeElement |\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tEmptyElement |\n\t\tRawElement |\n\t\tRootEditableElement |\n\t\tUIElement\n\t);\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/element~Element} or its subclass.\n\t *\n\t * ```ts\n\t * element.is( 'element' ); // -> true\n\t * element.is( 'node' ); // -> true\n\t * element.is( 'view:element' ); // -> true\n\t * element.is( 'view:node' ); // -> true\n\t *\n\t * element.is( 'model:element' ); // -> false\n\t * element.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is an element, you can also check its\n\t * {@link module:engine/view/element~Element#name name}:\n\t *\n\t * ```ts\n\t * element.is( 'element', 'img' ); // -> true if this is an <img> element\n\t * text.is( 'element', 'img' ); -> false\n\t * ```\n\t *\n\t * @label ELEMENT\n\t */\n\tpublic is( type: 'element' | 'view:element' ): this is (\n\t\tElement |\n\t\tAttributeElement |\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tEmptyElement |\n\t\tRawElement |\n\t\tRootEditableElement |\n\t\tUIElement\n\t);\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/attributeelement~AttributeElement}.\n\t *\n\t * ```ts\n\t * attributeElement.is( 'attributeElement' ); // -> true\n\t * attributeElement.is( 'element' ); // -> true\n\t * attributeElement.is( 'node' ); // -> true\n\t * attributeElement.is( 'view:attributeElement' ); // -> true\n\t * attributeElement.is( 'view:element' ); // -> true\n\t * attributeElement.is( 'view:node' ); // -> true\n\t *\n\t * attributeElement.is( 'model:element' ); // -> false\n\t * attributeElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is an attribute element, you can also check its\n\t * {@link module:engine/view/attributeelement~AttributeElement#name name}:\n\t *\n\t * ```ts\n\t * attributeElement.is( 'element', 'b' ); // -> true if this is a bold element\n\t * attributeElement.is( 'attributeElement', 'b' ); // -> same as above\n\t * text.is( 'element', 'b' ); -> false\n\t * ```\n\t *\n\t * @label ATTRIBUTE_ELEMENT\n\t */\n\tpublic is( type: 'attributeElement' | 'view:attributeElement' ): this is AttributeElement;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/containerelement~ContainerElement} or its subclass.\n\t *\n\t * ```ts\n\t * containerElement.is( 'containerElement' ); // -> true\n\t * containerElement.is( 'element' ); // -> true\n\t * containerElement.is( 'node' ); // -> true\n\t * containerElement.is( 'view:containerElement' ); // -> true\n\t * containerElement.is( 'view:element' ); // -> true\n\t * containerElement.is( 'view:node' ); // -> true\n\t *\n\t * containerElement.is( 'model:element' ); // -> false\n\t * containerElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is a container element, you can also check its\n\t * {@link module:engine/view/containerelement~ContainerElement#name name}:\n\t *\n\t * ```ts\n\t * containerElement.is( 'element', 'div' ); // -> true if this is a div container element\n\t * containerElement.is( 'contaienrElement', 'div' ); // -> same as above\n\t * text.is( 'element', 'div' ); -> false\n\t * ```\n\t *\n\t * @label CONTAINER_ELEMENT\n\t */\n\tpublic is( type: 'containerElement' | 'view:containerElement' ): this is ContainerElement | EditableElement | RootEditableElement;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/editableelement~EditableElement} or its subclass.\n\t *\n\t * ```ts\n\t * editableElement.is( 'editableElement' ); // -> true\n\t * editableElement.is( 'element' ); // -> true\n\t * editableElement.is( 'node' ); // -> true\n\t * editableElement.is( 'view:editableElement' ); // -> true\n\t * editableElement.is( 'view:element' ); // -> true\n\t * editableElement.is( 'view:node' ); // -> true\n\t *\n\t * editableElement.is( 'model:element' ); // -> false\n\t * editableElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is an editbale element, you can also check its\n\t * {@link module:engine/view/editableelement~EditableElement#name name}:\n\t *\n\t * ```ts\n\t * editableElement.is( 'element', 'div' ); // -> true if this is a div element\n\t * editableElement.is( 'editableElement', 'div' ); // -> same as above\n\t * text.is( 'element', 'div' ); -> false\n\t * ```\n\t *\n\t * @label EDITABLE_ELEMENT\n\t */\n\tpublic is( type: 'editableElement' | 'view:editableElement' ): this is EditableElement | RootEditableElement;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/emptyelement~EmptyElement}.\n\t *\n\t * ```ts\n\t * emptyElement.is( 'emptyElement' ); // -> true\n\t * emptyElement.is( 'element' ); // -> true\n\t * emptyElement.is( 'node' ); // -> true\n\t * emptyElement.is( 'view:emptyElement' ); // -> true\n\t * emptyElement.is( 'view:element' ); // -> true\n\t * emptyElement.is( 'view:node' ); // -> true\n\t *\n\t * emptyElement.is( 'model:element' ); // -> false\n\t * emptyElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is an empty element, you can also check its\n\t * {@link module:engine/view/emptyelement~EmptyElement#name name}:\n\t *\n\t * ```ts\n\t * emptyElement.is( 'element', 'img' ); // -> true if this is a img element\n\t * emptyElement.is( 'emptyElement', 'img' ); // -> same as above\n\t * text.is( 'element', 'img' ); -> false\n\t * ```\n\t *\n\t * @label EMPTY_ELEMENT\n\t */\n\tpublic is( type: 'emptyElement' | 'view:emptyElement' ): this is EmptyElement;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/rawelement~RawElement}.\n\t *\n\t * ```ts\n\t * rawElement.is( 'rawElement' ); // -> true\n\t * rawElement.is( 'element' ); // -> true\n\t * rawElement.is( 'node' ); // -> true\n\t * rawElement.is( 'view:rawElement' ); // -> true\n\t * rawElement.is( 'view:element' ); // -> true\n\t * rawElement.is( 'view:node' ); // -> true\n\t *\n\t * rawElement.is( 'model:element' ); // -> false\n\t * rawElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is a raw element, you can also check its\n\t * {@link module:engine/view/rawelement~RawElement#name name}:\n\t *\n\t * ```ts\n\t * rawElement.is( 'img' ); // -> true if this is an img element\n\t * rawElement.is( 'rawElement', 'img' ); // -> same as above\n\t * text.is( 'img' ); -> false\n\t * ```\n\t *\n\t * @label RAW_ELEMENT\n\t */\n\tpublic is( type: 'rawElement' | 'view:rawElement' ): this is RawElement;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/rooteditableelement~RootEditableElement}.\n\t *\n\t * ```ts\n\t * rootEditableElement.is( 'rootElement' ); // -> true\n\t * rootEditableElement.is( 'editableElement' ); // -> true\n\t * rootEditableElement.is( 'element' ); // -> true\n\t * rootEditableElement.is( 'node' ); // -> true\n\t * rootEditableElement.is( 'view:editableElement' ); // -> true\n\t * rootEditableElement.is( 'view:element' ); // -> true\n\t * rootEditableElement.is( 'view:node' ); // -> true\n\t *\n\t * rootEditableElement.is( 'model:element' ); // -> false\n\t * rootEditableElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is a root editable element, you can also check its\n\t * {@link module:engine/view/rooteditableelement~RootEditableElement#name name}:\n\t *\n\t * ```ts\n\t * rootEditableElement.is( 'element', 'div' ); // -> true if this is a div root editable element\n\t * rootEditableElement.is( 'rootElement', 'div' ); // -> same as above\n\t * text.is( 'element', 'div' ); -> false\n\t * ```\n\t *\n\t * @label ROOT_ELEMENT\n\t */\n\tpublic is( type: 'rootElement' | 'view:rootElement' ): this is RootEditableElement;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/uielement~UIElement}.\n\t *\n\t * ```ts\n\t * uiElement.is( 'uiElement' ); // -> true\n\t * uiElement.is( 'element' ); // -> true\n\t * uiElement.is( 'node' ); // -> true\n\t * uiElement.is( 'view:uiElement' ); // -> true\n\t * uiElement.is( 'view:element' ); // -> true\n\t * uiElement.is( 'view:node' ); // -> true\n\t *\n\t * uiElement.is( 'model:element' ); // -> false\n\t * uiElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is an ui element, you can also check its\n\t * {@link module:engine/view/uielement~UIElement#name name}:\n\t *\n\t * ```ts\n\t * uiElement.is( 'element', 'span' ); // -> true if this is a span ui element\n\t * uiElement.is( 'uiElement', 'span' ); // -> same as above\n\t * text.is( 'element', 'span' ); -> false\n\t * ```\n\t *\n\t * @label UI_ELEMENT\n\t */\n\tpublic is( type: 'uiElement' | 'view:uiElement' ): this is UIElement;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/text~Text}.\n\t *\n\t * ```ts\n\t * text.is( '$text' ); // -> true\n\t * text.is( 'node' ); // -> true\n\t * text.is( 'view:$text' ); // -> true\n\t * text.is( 'view:node' ); // -> true\n\t *\n\t * text.is( 'model:$text' ); // -> false\n\t * text.is( 'element' ); // -> false\n\t * text.is( 'range' ); // -> false\n\t * ```\n\t *\n\t * @label TEXT\n\t */\n\tpublic is( type: '$text' | 'view:$text' ): this is Text;\n\n\t/**\n\t * hecks whether this object is of type {@link module:engine/view/documentfragment~DocumentFragment}.\n\t *\n\t * ```ts\n\t * docFrag.is( 'documentFragment' ); // -> true\n\t * docFrag.is( 'view:documentFragment' ); // -> true\n\t *\n\t * docFrag.is( 'model:documentFragment' ); // -> false\n\t * docFrag.is( 'element' ); // -> false\n\t * docFrag.is( 'node' ); // -> false\n\t * ```\n\t *\n\t * @label DOCUMENT_FRAGMENT\n\t */\n\tpublic is( type: 'documentFragment' | 'view:documentFragment' ): this is DocumentFragment;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/textproxy~TextProxy}.\n\t *\n\t * ```ts\n\t * textProxy.is( '$textProxy' ); // -> true\n\t * textProxy.is( 'view:$textProxy' ); // -> true\n\t *\n\t * textProxy.is( 'model:$textProxy' ); // -> false\n\t * textProxy.is( 'element' ); // -> false\n\t * textProxy.is( 'range' ); // -> false\n\t * ```\n\t *\n\t * **Note:** Until version 20.0.0 this method wasn't accepting `'$textProxy'` type. The legacy `'textProxy'` type is still\n\t * accepted for backward compatibility.\n\t *\n\t * @label TEXT_PROXY\n\t */\n\tpublic is( type: '$textProxy' | 'view:$textProxy' ): this is TextProxy;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/position~Position}.\n\t *\n\t * ```ts\n\t * position.is( 'position' ); // -> true\n\t * position.is( 'view:position' ); // -> true\n\t *\n\t * position.is( 'model:position' ); // -> false\n\t * position.is( 'element' ); // -> false\n\t * position.is( 'range' ); // -> false\n\t * ```\n\t *\n\t * @label POSITION\n\t */\n\tpublic is( type: 'position' | 'view:position' ): this is Position;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/range~Range}.\n\t *\n\t * ```ts\n\t * range.is( 'range' ); // -> true\n\t * range.is( 'view:range' ); // -> true\n\t *\n\t * range.is( 'model:range' ); // -> false\n\t * range.is( 'element' ); // -> false\n\t * range.is( 'selection' ); // -> false\n\t * ```\n\t *\n\t * @label RANGE\n\t */\n\tpublic is( type: 'range' | 'view:range' ): this is Range;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/selection~Selection} or\n\t * {@link module:engine/view/documentselection~DocumentSelection}.\n\t *\n\t * ```ts\n\t * selection.is( 'selection' ); // -> true\n\t * selection.is( 'view:selection' ); // -> true\n\t *\n\t * selection.is( 'model:selection' ); // -> false\n\t * selection.is( 'element' ); // -> false\n\t * selection.is( 'range' ); // -> false\n\t * ```\n\t *\n\t * @label SELECTION\n\t */\n\tpublic is( type: 'selection' | 'view:selection' ): this is Selection | DocumentSelection;\n\n\t/**\n\t * Checks whether this object is of type {@link module:engine/view/documentselection~DocumentSelection}.\n\t *\n\t * ```ts\n\t * `docSelection.is( 'selection' ); // -> true\n\t * docSelection.is( 'documentSelection' ); // -> true\n\t * docSelection.is( 'view:selection' ); // -> true\n\t * docSelection.is( 'view:documentSelection' ); // -> true\n\t *\n\t * docSelection.is( 'model:documentSelection' ); // -> false\n\t * docSelection.is( 'element' ); // -> false\n\t * docSelection.is( 'node' ); // -> false\n\t * ```\n\t *\n\t * @label DOCUMENT_SELECTION\n\t */\n\tpublic is( type: 'documentSelection' | 'view:documentSelection' ): this is DocumentSelection;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/element~Element} or its subclass and has the specified `name`.\n\t *\n\t * @label ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'element' | 'view:element', name: N ): this is (\n\t\tElement |\n\t\tAttributeElement |\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tEmptyElement |\n\t\tRawElement |\n\t\tRootEditableElement |\n\t\tUIElement\n\t) & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/attributeelement~AttributeElement} and has the specified `name`.\n\t *\n\t * @label ATTRIBUTE_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'attributeElement' | 'view:attributeElement', name: N ): this is AttributeElement & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/containerelement~ContainerElement}\n\t * or its subclass and has the specified `name`.\n\t *\n\t * @label CONTAINER_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'containerElement' | 'view:containerElement', name: N ): this is (\n\t\tContainerElement |\n\t\tEditableElement |\n\t\tRootEditableElement\n\t) & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/editableelement~EditableElement}\n\t * or its subclass and has the specified `name`.\n\t *\n\t * @label EDITABLE_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'editableElement' | 'view:editableElement', name: N ): this is (\n\t\tEditableElement |\n\t\tRootEditableElement\n\t) & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/emptyelement~EmptyElement} has the specified `name`.\n\t *\n\t * @label EMPTY_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'emptyElement' | 'view:emptyElement', name: N ): this is EmptyElement & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/rawelement~RawElement} and has the specified `name`.\n\t *\n\t * @label RAW_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'rawElement' | 'view:rawElement', name: N ): this is RawElement & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/rooteditableelement~RootEditableElement} and has the specified `name`.\n\t *\n\t * @label ROOT_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'rootElement' | 'view:rootElement', name: N ): this is RootEditableElement & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/view/uielement~UIElement} and has the specified `name`.\n\t *\n\t * @label UI_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'uiElement' | 'view:uiElement', name: N ): this is UIElement & { name: N };\n\n\t/* istanbul ignore next -- @preserve */\n\tpublic is(): boolean {\n\t\t// There are a lot of overloads above.\n\t\t// Overriding method in derived classes remove them and only `is( type: string ): boolean` is visible which we don't want.\n\t\t// One option would be to copy them all to all classes, but that's ugly.\n\t\t// It's best when TypeScript compiler doesn't see those overloads, except the one in the top base class.\n\t\t// To overload a method, but not let the compiler see it, do after class definition:\n\t\t// `MyClass.prototype.is = function( type: string ) {...}`\n\t\tthrow new Error( 'is() method is abstract' );\n\t}\n}\n","import baseClone from './_baseClone.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\nfunction clone(value) {\n  return baseClone(value, CLONE_SYMBOLS_FLAG);\n}\n\nexport default clone;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/node\n */\n\nimport TypeCheckable from './typecheckable';\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tcompareArrays\n} from '@ckeditor/ckeditor5-utils';\n\nimport { clone } from 'lodash-es';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\nimport type { default as Document, ChangeType } from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\n\n/**\n * Abstract view node class.\n *\n * This is an abstract class. Its constructor should not be used directly.\n * Use the {@link module:engine/view/downcastwriter~DowncastWriter} or {@link module:engine/view/upcastwriter~UpcastWriter}\n * to create new instances of view nodes.\n */\nexport default abstract class Node extends EmitterMixin( TypeCheckable ) {\n\t/**\n\t * The document instance to which this node belongs.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * Parent element. Null by default. Set by {@link module:engine/view/element~Element#_insertChild}.\n\t */\n\tpublic readonly parent: Element | DocumentFragment | null;\n\n\t/**\n\t * Creates a tree view node.\n\t *\n\t * @param document The document instance to which this node belongs.\n\t */\n\tprotected constructor( document: Document ) {\n\t\tsuper();\n\n\t\tthis.document = document;\n\t\tthis.parent = null;\n\t}\n\n\t/**\n\t * Index of the node in the parent element or null if the node has no parent.\n\t *\n\t * Accessing this property throws an error if this node's parent element does not contain it.\n\t * This means that view tree got broken.\n\t */\n\tpublic get index(): number | null {\n\t\tlet pos;\n\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// No parent or child doesn't exist in parent's children.\n\t\tif ( ( pos = this.parent.getChildIndex( this ) ) == -1 ) {\n\t\t\t/**\n\t\t\t * The node's parent does not contain this node. It means that the document tree is corrupted.\n\t\t\t *\n\t\t\t * @error view-node-not-found-in-parent\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-node-not-found-in-parent', this );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Node's next sibling, or `null` if it is the last child.\n\t */\n\tpublic get nextSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index + 1 ) ) || null;\n\t}\n\n\t/**\n\t * Node's previous sibling, or `null` if it is the first child.\n\t */\n\tpublic get previousSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index - 1 ) ) || null;\n\t}\n\n\t/**\n\t * Top-most ancestor of the node. If the node has no parent it is the root itself.\n\t */\n\tpublic get root(): Element | DocumentFragment {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet root: Node | DocumentFragment = this;\n\n\t\twhile ( root.parent ) {\n\t\t\troot = root.parent;\n\t\t}\n\n\t\treturn root as any;\n\t}\n\n\t/**\n\t * Returns true if the node is in a tree rooted in the document (is a descendant of one of its roots).\n\t */\n\tpublic isAttached(): boolean {\n\t\treturn this.root.is( 'rootElement' );\n\t}\n\n\t/**\n\t * Gets a path to the node. The path is an array containing indices of consecutive ancestors of this node,\n\t * beginning from {@link module:engine/view/node~Node#root root}, down to this node's index.\n\t *\n\t * ```ts\n\t * const abc = downcastWriter.createText( 'abc' );\n\t * const foo = downcastWriter.createText( 'foo' );\n\t * const h1 = downcastWriter.createElement( 'h1', null, downcastWriter.createText( 'header' ) );\n\t * const p = downcastWriter.createElement( 'p', null, [ abc, foo ] );\n\t * const div = downcastWriter.createElement( 'div', null, [ h1, p ] );\n\t * foo.getPath(); // Returns [ 1, 3 ]. `foo` is in `p` which is in `div`. `p` starts at offset 1, while `foo` at 3.\n\t * h1.getPath(); // Returns [ 0 ].\n\t * div.getPath(); // Returns [].\n\t * ```\n\t *\n\t * @returns The path.\n\t */\n\tpublic getPath(): Array<number> {\n\t\tconst path = [];\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node | DocumentFragment = this;\n\n\t\twhile ( node.parent ) {\n\t\t\tpath.unshift( node.index! );\n\t\t\tnode = node.parent;\n\t\t}\n\n\t\treturn path;\n\t}\n\n\t/**\n\t * Returns ancestors array of this node.\n\t *\n\t * @param options Options object.\n\t * @param options.includeSelf When set to `true` this node will be also included in parent's array.\n\t * @param options.parentFirst When set to `true`, array will be sorted from node's parent to root element,\n\t * otherwise root element will be the first item in the array.\n\t * @returns Array with ancestors.\n\t */\n\tpublic getAncestors( options: { includeSelf?: boolean; parentFirst?: boolean } = {} ): Array<Node | DocumentFragment> {\n\t\tconst ancestors: Array<Node | DocumentFragment> = [];\n\t\tlet parent = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/element~Element} or {@link module:engine/view/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both nodes.\n\t *\n\t * @param node The second node.\n\t * @param options Options object.\n\t * @param options.includeSelf When set to `true` both nodes will be considered \"ancestors\" too.\n\t * Which means that if e.g. node A is inside B, then their common ancestor will be B.\n\t */\n\tpublic getCommonAncestor( node: Node, options: { includeSelf?: boolean } = {} ): Element | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors( options );\n\t\tconst ancestorsB = node.getAncestors( options );\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ] as ( Element | DocumentFragment );\n\t}\n\n\t/**\n\t * Returns whether this node is before given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/view/documentfragment~DocumentFragment}s).\n\t *\n\t * @param node Node to compare with.\n\t */\n\tpublic isBefore( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst thisPath = this.getPath();\n\t\tconst nodePath = node.getPath();\n\n\t\tconst result = compareArrays( thisPath, nodePath );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'prefix':\n\t\t\t\treturn true;\n\n\t\t\tcase 'extension':\n\t\t\t\treturn false;\n\n\t\t\tdefault:\n\t\t\t\treturn thisPath[ result as number ] < nodePath[ result as number ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns whether this node is after given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/view/documentfragment~DocumentFragment}s).\n\t *\n\t * @param node Node to compare with.\n\t */\n\tpublic isAfter( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// In other cases, just check if the `node` is before, and return the opposite.\n\t\treturn !this.isBefore( node );\n\t}\n\n\t/**\n\t * Removes node from parent.\n\t *\n\t * @internal\n\t */\n\tpublic _remove(): void {\n\t\tthis.parent!._removeChildren( this.index! );\n\t}\n\n\t/**\n\t * @internal\n\t * @param type Type of the change.\n\t * @param node Changed node.\n\t * @fires change\n\t */\n\tpublic _fireChange( type: ChangeType, node: Node ): void {\n\t\tthis.fire<ViewNodeChangeEvent>( `change:${ type }`, node );\n\n\t\tif ( this.parent ) {\n\t\t\tthis.parent._fireChange( type, node );\n\t\t}\n\t}\n\n\t/**\n\t * Custom toJSON method to solve child-parent circular dependencies.\n\t *\n\t * @returns Clone of this object with the parent property removed.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json: any = clone( this );\n\n\t\t// Due to circular references we need to remove parent reference.\n\t\tdelete json.parent;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Clones this node.\n\t *\n\t * @internal\n\t * @returns Clone of this node.\n\t */\n\tpublic abstract _clone( deep?: boolean ): Node;\n\n\t/**\n\t * Checks if provided node is similar to this node.\n\t *\n\t * @returns True if nodes are similar.\n\t */\n\tpublic abstract isSimilar( other: Node ): boolean;\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nNode.prototype.is = function( type: string ): boolean {\n\treturn type === 'node' || type === 'view:node';\n};\n\n/**\n * Fired when list of {@link module:engine/view/element~Element elements} children, attributes or data changes.\n *\n * Change event is bubbled – it is fired on all ancestors.\n *\n * @eventName ~Node#change\n * @eventName ~Node#change:children\n * @eventName ~Node#change:attributes\n * @eventName ~Node#change:text\n */\nexport type ViewNodeChangeEvent = {\n\tname: 'change' | `change:${ ChangeType }`;\n\targs: [ changedNode: Node ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/text\n */\n\nimport Node from './node';\n\nimport type Document from './document';\n\n/**\n * Tree view text node.\n *\n * The constructor of this class should not be used directly. To create a new text node instance\n * use the {@link module:engine/view/downcastwriter~DowncastWriter#createText `DowncastWriter#createText()`}\n * method when working on data downcasted from the model or the\n * {@link module:engine/view/upcastwriter~UpcastWriter#createText `UpcastWriter#createText()`}\n * method when working on non-semantic views.\n */\nexport default class Text extends Node {\n\t/**\n\t * The text content.\n\t *\n\t * Setting the data fires the {@link module:engine/view/node~Node#event:change:text change event}.\n\t */\n\tprivate _textData: string;\n\n\t/**\n\t * Creates a tree view text node.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createText\n\t * @internal\n\t * @param document The document instance to which this text node belongs.\n\t * @param data The text's data.\n\t */\n\tconstructor( document: Document, data: string ) {\n\t\tsuper( document );\n\n\t\tthis._textData = data;\n\t}\n\n\t/**\n\t * The text content.\n\t */\n\tpublic get data(): string {\n\t\treturn this._textData;\n\t}\n\n\t/**\n\t * The `_data` property is controlled by a getter and a setter.\n\t *\n\t * The getter is required when using the addition assignment operator on protected property:\n\t *\n\t * ```ts\n\t * const foo = downcastWriter.createText( 'foo' );\n\t * const bar = downcastWriter.createText( 'bar' );\n\t *\n\t * foo._data += bar.data;   // executes: `foo._data = foo._data + bar.data`\n\t * console.log( foo.data ); // prints: 'foobar'\n\t * ```\n\t *\n\t * If the protected getter didn't exist, `foo._data` will return `undefined` and result of the merge will be invalid.\n\t *\n\t * The setter sets data and fires the {@link module:engine/view/node~Node#event:change:text change event}.\n\t *\n\t * @internal\n\t */\n\tpublic get _data(): string {\n\t\treturn this.data;\n\t}\n\n\tpublic set _data( data: string ) {\n\t\tthis._fireChange( 'text', this );\n\n\t\tthis._textData = data;\n\t}\n\n\t/**\n\t * Checks if this text node is similar to other text node.\n\t * Both nodes should have the same data to be considered as similar.\n\t *\n\t * @param otherNode Node to check if it is same as this node.\n\t */\n\tpublic isSimilar( otherNode: Node ): boolean {\n\t\tif ( !( otherNode instanceof Text ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn this === otherNode || this.data === otherNode.data;\n\t}\n\n\t/**\n\t * Clones this node.\n\t *\n\t * @internal\n\t * @returns Text node that is a clone of this node.\n\t */\n\tpublic _clone(): Text {\n\t\treturn new Text( this.document, this.data );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewText: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logExtended(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewText: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nText.prototype.is = function( type: string ): boolean {\n\treturn type === '$text' || type === 'view:$text' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'text' || type === 'view:text' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype === 'node' || type === 'view:node';\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/textproxy\n */\n\nimport TypeCheckable from './typecheckable';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Node from './node';\nimport type Text from './text';\n\n/**\n * TextProxy is a wrapper for substring of {@link module:engine/view/text~Text}. Instance of this class is created by\n * {@link module:engine/view/treewalker~TreeWalker} when only a part of {@link module:engine/view/text~Text} needs to be returned.\n *\n * `TextProxy` has an API similar to {@link module:engine/view/text~Text Text} and allows to do most of the common tasks performed\n * on view nodes.\n *\n * **Note:** Some `TextProxy` instances may represent whole text node, not just a part of it.\n * See {@link module:engine/view/textproxy~TextProxy#isPartial}.\n *\n * **Note:** `TextProxy` is a readonly interface.\n *\n * **Note:** `TextProxy` instances are created on the fly basing on the current state of parent {@link module:engine/view/text~Text}.\n * Because of this it is highly unrecommended to store references to `TextProxy instances because they might get\n * invalidated due to operations on Document. Also TextProxy is not a {@link module:engine/view/node~Node} so it can not be\n * inserted as a child of {@link module:engine/view/element~Element}.\n *\n * `TextProxy` instances are created by {@link module:engine/view/treewalker~TreeWalker view tree walker}. You should not need to create\n * an instance of this class by your own.\n */\nexport default class TextProxy extends TypeCheckable {\n\t/**\n\t * Reference to the {@link module:engine/view/text~Text} element which TextProxy is a substring.\n\t */\n\tpublic readonly textNode: Text;\n\n\t/**\n\t * Text data represented by this text proxy.\n\t */\n\tpublic readonly data: string;\n\n\t/**\n\t * Offset in the `textNode` where this `TextProxy` instance starts.\n\t */\n\tpublic readonly offsetInText: number;\n\n\t/**\n\t * Creates a text proxy.\n\t *\n\t * @internal\n\t * @param textNode Text node which part is represented by this text proxy.\n\t * @param offsetInText Offset in {@link module:engine/view/textproxy~TextProxy#textNode text node}\n\t * from which the text proxy starts.\n\t * @param length Text proxy length, that is how many text node's characters, starting from `offsetInText` it represents.\n\t * @constructor\n\t */\n\tconstructor( textNode: Text, offsetInText: number, length: number ) {\n\t\tsuper();\n\n\t\tthis.textNode = textNode;\n\n\t\tif ( offsetInText < 0 || offsetInText > textNode.data.length ) {\n\t\t\t/**\n\t\t\t * Given offsetInText value is incorrect.\n\t\t\t *\n\t\t\t * @error view-textproxy-wrong-offsetintext\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-textproxy-wrong-offsetintext', this );\n\t\t}\n\n\t\tif ( length < 0 || offsetInText + length > textNode.data.length ) {\n\t\t\t/**\n\t\t\t * Given length value is incorrect.\n\t\t\t *\n\t\t\t * @error view-textproxy-wrong-length\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-textproxy-wrong-length', this );\n\t\t}\n\n\t\tthis.data = textNode.data.substring( offsetInText, offsetInText + length );\n\t\tthis.offsetInText = offsetInText;\n\t}\n\n\t/**\n\t * Offset size of this node.\n\t */\n\tpublic get offsetSize(): number {\n\t\treturn this.data.length;\n\t}\n\n\t/**\n\t * Flag indicating whether `TextProxy` instance covers only part of the original {@link module:engine/view/text~Text text node}\n\t * (`true`) or the whole text node (`false`).\n\t *\n\t * This is `false` when text proxy starts at the very beginning of {@link module:engine/view/textproxy~TextProxy#textNode textNode}\n\t * ({@link module:engine/view/textproxy~TextProxy#offsetInText offsetInText} equals `0`) and text proxy sizes is equal to\n\t * text node size.\n\t */\n\tpublic get isPartial(): boolean {\n\t\treturn this.data.length !== this.textNode.data.length;\n\t}\n\n\t/**\n\t * Parent of this text proxy, which is same as parent of text node represented by this text proxy.\n\t */\n\tpublic get parent(): Element | DocumentFragment | null {\n\t\treturn this.textNode.parent;\n\t}\n\n\t/**\n\t * Root of this text proxy, which is same as root of text node represented by this text proxy.\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.textNode.root;\n\t}\n\n\t/**\n\t * {@link module:engine/view/document~Document View document} that owns this text proxy, or `null` if the text proxy is inside\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment}.\n\t */\n\tpublic get document(): Document | null {\n\t\treturn this.textNode.document;\n\t}\n\n\t/**\n\t * Returns ancestors array of this text proxy.\n\t *\n\t * @param options Options object.\n\t * @param options.includeSelf When set to `true`, textNode will be also included in parent's array.\n\t * @param options.parentFirst When set to `true`, array will be sorted from text proxy parent to\n\t * root element, otherwise root element will be the first item in the array.\n\t * @returns Array with ancestors.\n\t */\n\tpublic getAncestors( options: {\n\t\tincludeSelf?: boolean;\n\t\tparentFirst?: boolean;\n\t} = {} ): Array<Text | Element | DocumentFragment> {\n\t\tconst ancestors: Array<Text | Element | DocumentFragment> = [];\n\t\tlet parent: Text | Element | DocumentFragment | null = options.includeSelf ? this.textNode : this.parent;\n\n\t\twhile ( parent !== null ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewTextProxy: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logExtended(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ViewTextProxy: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nTextProxy.prototype.is = function( type: string ): boolean {\n\treturn type === '$textProxy' || type === 'view:$textProxy' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'textProxy' || type === 'view:textProxy';\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/matcher\n */\n\nimport type Element from './element';\n\nimport { isPlainObject } from 'lodash-es';\n\nimport { logWarning } from '@ckeditor/ckeditor5-utils';\n\n/**\n * View matcher class.\n * Instance of this class can be used to find {@link module:engine/view/element~Element elements} that match given pattern.\n */\nexport default class Matcher {\n\tprivate readonly _patterns: Array<MatcherFunctionPattern | MatcherObjectPattern> = [];\n\n\t/**\n\t * Creates new instance of Matcher.\n\t *\n\t * @param pattern Match patterns. See {@link module:engine/view/matcher~Matcher#add add method} for more information.\n\t */\n\tconstructor( ...pattern: Array<MatcherPattern> ) {\n\t\tthis.add( ...pattern );\n\t}\n\n\t/**\n\t * Adds pattern or patterns to matcher instance.\n\t *\n\t * ```ts\n\t * // String.\n\t * matcher.add( 'div' );\n\t *\n\t * // Regular expression.\n\t * matcher.add( /^\\w/ );\n\t *\n\t * // Single class.\n\t * matcher.add( {\n\t * \tclasses: 'foobar'\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/view/matcher~MatcherPattern} for more examples.\n\t *\n\t * Multiple patterns can be added in one call:\n\t *\n\t * ```ts\n\t * matcher.add( 'div', { classes: 'foobar' } );\n\t * ```\n\t *\n\t * @param pattern Object describing pattern details. If string or regular expression\n\t * is provided it will be used to match element's name. Pattern can be also provided in a form\n\t * of a function - then this function will be called with each {@link module:engine/view/element~Element element} as a parameter.\n\t * Function's return value will be stored under `match` key of the object returned from\n\t * {@link module:engine/view/matcher~Matcher#match match} or {@link module:engine/view/matcher~Matcher#matchAll matchAll} methods.\n\t */\n\tpublic add( ...pattern: Array<MatcherPattern> ): void {\n\t\tfor ( let item of pattern ) {\n\t\t\t// String or RegExp pattern is used as element's name.\n\t\t\tif ( typeof item == 'string' || item instanceof RegExp ) {\n\t\t\t\titem = { name: item };\n\t\t\t}\n\n\t\t\tthis._patterns.push( item );\n\t\t}\n\t}\n\n\t/**\n\t * Matches elements for currently stored patterns. Returns match information about first found\n\t * {@link module:engine/view/element~Element element}, otherwise returns `null`.\n\t *\n\t * Example of returned object:\n\t *\n\t * ```ts\n\t * {\n\t * \telement: <instance of found element>,\n\t * \tpattern: <pattern used to match found element>,\n\t * \tmatch: {\n\t * \t\tname: true,\n\t * \t\tattributes: [ 'title', 'href' ],\n\t * \t\tclasses: [ 'foo' ],\n\t * \t\tstyles: [ 'color', 'position' ]\n\t * \t}\n\t * }\n\t * ```\n\t *\n\t * @see module:engine/view/matcher~Matcher#add\n\t * @see module:engine/view/matcher~Matcher#matchAll\n\t * @param element View element to match against stored patterns.\n\t */\n\tpublic match( ...element: Array<Element> ): MatchResult | null {\n\t\tfor ( const singleElement of element ) {\n\t\t\tfor ( const pattern of this._patterns ) {\n\t\t\t\tconst match = isElementMatching( singleElement, pattern );\n\n\t\t\t\tif ( match ) {\n\t\t\t\t\treturn {\n\t\t\t\t\t\telement: singleElement,\n\t\t\t\t\t\tpattern,\n\t\t\t\t\t\tmatch\n\t\t\t\t\t};\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Matches elements for currently stored patterns. Returns array of match information with all found\n\t * {@link module:engine/view/element~Element elements}. If no element is found - returns `null`.\n\t *\n\t * @see module:engine/view/matcher~Matcher#add\n\t * @see module:engine/view/matcher~Matcher#match\n\t * @param element View element to match against stored patterns.\n\t * @returns Array with match information about found elements or `null`. For more information\n\t * see {@link module:engine/view/matcher~Matcher#match match method} description.\n\t */\n\tpublic matchAll( ...element: Array<Element> ): Array<MatchResult> | null {\n\t\tconst results: Array<MatchResult> = [];\n\n\t\tfor ( const singleElement of element ) {\n\t\t\tfor ( const pattern of this._patterns ) {\n\t\t\t\tconst match = isElementMatching( singleElement, pattern );\n\n\t\t\t\tif ( match ) {\n\t\t\t\t\tresults.push( {\n\t\t\t\t\t\telement: singleElement,\n\t\t\t\t\t\tpattern,\n\t\t\t\t\t\tmatch\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn results.length > 0 ? results : null;\n\t}\n\n\t/**\n\t * Returns the name of the element to match if there is exactly one pattern added to the matcher instance\n\t * and it matches element name defined by `string` (not `RegExp`). Otherwise, returns `null`.\n\t *\n\t * @returns Element name trying to match.\n\t */\n\tpublic getElementName(): string | null {\n\t\tif ( this._patterns.length !== 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst pattern = this._patterns[ 0 ];\n\t\tconst name = pattern.name;\n\n\t\treturn ( typeof pattern != 'function' && name && !( name instanceof RegExp ) ) ? name : null;\n\t}\n}\n\n/**\n * Returns match information if {@link module:engine/view/element~Element element} is matching provided pattern.\n * If element cannot be matched to provided pattern - returns `null`.\n *\n * @returns Returns object with match information or null if element is not matching.\n */\nfunction isElementMatching( element: Element, pattern: MatcherFunctionPattern | MatcherObjectPattern ): Match | null {\n\t// If pattern is provided as function - return result of that function;\n\tif ( typeof pattern == 'function' ) {\n\t\treturn pattern( element );\n\t}\n\n\tconst match: Match = {};\n\n\t// Check element's name.\n\tif ( pattern.name ) {\n\t\tmatch.name = matchName( pattern.name, element.name );\n\n\t\tif ( !match.name ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// Check element's attributes.\n\tif ( pattern.attributes ) {\n\t\tmatch.attributes = matchAttributes( pattern.attributes, element );\n\n\t\tif ( !match.attributes ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// Check element's classes.\n\tif ( pattern.classes ) {\n\t\tmatch.classes = matchClasses( pattern.classes, element );\n\n\t\tif ( !match.classes ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// Check element's styles.\n\tif ( pattern.styles ) {\n\t\tmatch.styles = matchStyles( pattern.styles, element );\n\n\t\tif ( !match.styles ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\treturn match;\n}\n\n/**\n * Checks if name can be matched by provided pattern.\n *\n * @returns Returns `true` if name can be matched, `false` otherwise.\n */\nfunction matchName( pattern: string | RegExp, name: string ): boolean {\n\t// If pattern is provided as RegExp - test against this regexp.\n\tif ( pattern instanceof RegExp ) {\n\t\treturn !!name.match( pattern );\n\t}\n\n\treturn pattern === name;\n}\n\n/**\n * Checks if an array of key/value pairs can be matched against provided patterns.\n *\n * Patterns can be provided in a following ways:\n * - a boolean value matches any attribute with any value (or no value):\n *\n * ```ts\n * pattern: true\n * ```\n *\n * - a RegExp expression or object matches any attribute name:\n *\n * ```ts\n * pattern: /h[1-6]/\n * ```\n *\n * - an object matches any attribute that has the same name as the object item's key, where object item's value is:\n * \t- equal to `true`, which matches any attribute value:\n *\n * ```ts\n * pattern: {\n * \trequired: true\n * }\n * ```\n *\n * \t- a string that is equal to attribute value:\n *\n * ```ts\n * pattern: {\n * \trel: 'nofollow'\n * }\n * ```\n *\n * \t- a regular expression that matches attribute value,\n *\n * ```ts\n * pattern: {\n * \tsrc: /^https/\n * }\n * ```\n *\n * - an array with items, where the item is:\n * \t- a string that is equal to attribute value:\n *\n * ```ts\n * pattern: [ 'data-property-1', 'data-property-2' ],\n * ```\n *\n * \t- an object with `key` and `value` property, where `key` is a regular expression matching attribute name and\n * \t\t`value` is either regular expression matching attribute value or a string equal to attribute value:\n *\n * ```ts\n * pattern: [\n * \t{ key: /^data-property-/, value: true },\n * \t// or:\n * \t{ key: /^data-property-/, value: 'foobar' },\n * \t// or:\n * \t{ key: /^data-property-/, value: /^foo/ }\n * ]\n * ```\n *\n * @param patterns Object with information about attributes to match.\n * @param keys Attribute, style or class keys.\n * @param valueGetter A function providing value for a given item key.\n * @returns Returns array with matched attribute names or `null` if no attributes were matched.\n */\nfunction matchPatterns(\n\tpatterns: PropertyPatterns,\n\tkeys: Iterable<string>,\n\tvalueGetter: ( value: string ) => unknown\n): Array<string> | undefined {\n\tconst normalizedPatterns = normalizePatterns( patterns );\n\tconst normalizedItems = Array.from( keys );\n\tconst match: Array<string> = [];\n\n\tnormalizedPatterns.forEach( ( [ patternKey, patternValue ] ) => {\n\t\tnormalizedItems.forEach( itemKey => {\n\t\t\tif (\n\t\t\t\tisKeyMatched( patternKey, itemKey ) &&\n\t\t\t\tisValueMatched( patternValue, itemKey, valueGetter )\n\t\t\t) {\n\t\t\t\tmatch.push( itemKey );\n\t\t\t}\n\t\t} );\n\t} );\n\n\t// Return matches only if there are at least as many of them as there are patterns.\n\t// The RegExp pattern can match more than one item.\n\tif ( !normalizedPatterns.length || match.length < normalizedPatterns.length ) {\n\t\treturn undefined;\n\t}\n\n\treturn match;\n}\n\n/**\n * Bring all the possible pattern forms to an array of arrays where first item is a key and second is a value.\n *\n * Examples:\n *\n * Boolean pattern value:\n *\n * ```ts\n * true\n * ```\n *\n * to\n *\n * ```ts\n * [ [ true, true ] ]\n * ```\n *\n * Textual pattern value:\n *\n * ```ts\n * 'attribute-name-or-class-or-style'\n * ```\n *\n * to\n *\n * ```ts\n * [ [ 'attribute-name-or-class-or-style', true ] ]\n * ```\n *\n * Regular expression:\n *\n * ```ts\n * /^data-.*$/\n * ```\n *\n * to\n *\n * ```ts\n * [ [ /^data-.*$/, true ] ]\n * ```\n *\n * Objects (plain or with `key` and `value` specified explicitly):\n *\n * ```ts\n * {\n * \tsrc: /^https:.*$/\n * }\n * ```\n *\n * or\n *\n * ```ts\n * [ {\n * \tkey: 'src',\n * \tvalue: /^https:.*$/\n * } ]\n * ```\n *\n * to:\n *\n * ```ts\n * [ [ 'src', /^https:.*$/ ] ]\n * ```\n *\n * @returns Returns an array of objects or null if provided patterns were not in an expected form.\n */\nfunction normalizePatterns( patterns: PropertyPatterns ): Array<[ true | string | RegExp, true | string | RegExp ]> {\n\tif ( Array.isArray( patterns ) ) {\n\t\treturn patterns.map( ( pattern: any ) => {\n\t\t\tif ( isPlainObject( pattern ) ) {\n\t\t\t\tif ( pattern.key === undefined || pattern.value === undefined ) {\n\t\t\t\t\t// Documented at the end of matcher.js.\n\t\t\t\t\tlogWarning( 'matcher-pattern-missing-key-or-value', pattern );\n\t\t\t\t}\n\n\t\t\t\treturn [ pattern.key, pattern.value ];\n\t\t\t}\n\n\t\t\t// Assume the pattern is either String or RegExp.\n\t\t\treturn [ pattern, true ];\n\t\t} );\n\t}\n\n\tif ( isPlainObject( patterns ) ) {\n\t\treturn Object.entries( patterns );\n\t}\n\n\t// Other cases (true, string or regexp).\n\treturn [ [ patterns as any, true ] ];\n}\n\n/**\n * @param patternKey A pattern representing a key we want to match.\n * @param itemKey An actual item key (e.g. `'src'`, `'background-color'`, `'ck-widget'`) we're testing against pattern.\n */\nfunction isKeyMatched( patternKey: true | string | RegExp, itemKey: string ): unknown {\n\treturn patternKey === true ||\n\t\tpatternKey === itemKey ||\n\t\tpatternKey instanceof RegExp && itemKey.match( patternKey );\n}\n\n/**\n * @param patternValue A pattern representing a value we want to match.\n * @param itemKey An item key, e.g. `background`, `href`, 'rel', etc.\n * @param valueGetter A function used to provide a value for a given `itemKey`.\n */\nfunction isValueMatched(\n\tpatternValue: true | string | RegExp,\n\titemKey: string,\n\tvalueGetter: ( itemKey: string ) => unknown\n): boolean {\n\tif ( patternValue === true ) {\n\t\treturn true;\n\t}\n\n\tconst itemValue = valueGetter( itemKey );\n\n\t// For now, the reducers are not returning the full tree of properties.\n\t// Casting to string preserves the old behavior until the root cause is fixed.\n\t// More can be found in https://github.com/ckeditor/ckeditor5/issues/10399.\n\treturn patternValue === itemValue ||\n\t\tpatternValue instanceof RegExp && !!String( itemValue ).match( patternValue );\n}\n\n/**\n * Checks if attributes of provided element can be matched against provided patterns.\n *\n * @param patterns Object with information about attributes to match. Each key of the object will be\n * used as attribute name. Value of each key can be a string or regular expression to match against attribute value.\n * @param  element Element which attributes will be tested.\n * @returns Returns array with matched attribute names or `null` if no attributes were matched.\n */\nfunction matchAttributes(\n\tpatterns: AttributePatterns,\n\telement: Element\n): Array<string> | undefined {\n\tconst attributeKeys = new Set( element.getAttributeKeys() );\n\n\t// `style` and `class` attribute keys are deprecated. Only allow them in object pattern\n\t// for backward compatibility.\n\tif ( isPlainObject( patterns ) ) {\n\t\tif ( ( patterns as any ).style !== undefined ) {\n\t\t\t// Documented at the end of matcher.js.\n\t\t\tlogWarning( 'matcher-pattern-deprecated-attributes-style-key', patterns as any );\n\t\t}\n\t\tif ( ( patterns as any ).class !== undefined ) {\n\t\t\t// Documented at the end of matcher.js.\n\t\t\tlogWarning( 'matcher-pattern-deprecated-attributes-class-key', patterns as any );\n\t\t}\n\t} else {\n\t\tattributeKeys.delete( 'style' );\n\t\tattributeKeys.delete( 'class' );\n\t}\n\n\treturn matchPatterns( patterns, attributeKeys, key => element.getAttribute( key ) );\n}\n\n/**\n * Checks if classes of provided element can be matched against provided patterns.\n *\n * @param patterns Array of strings or regular expressions to match against element's classes.\n * @param element Element which classes will be tested.\n * @returns Returns array with matched class names or `null` if no classes were matched.\n */\nfunction matchClasses( patterns: ClassPatterns, element: Element ): Array<string> | undefined {\n\t// We don't need `getter` here because patterns for classes are always normalized to `[ className, true ]`.\n\treturn matchPatterns( patterns, element.getClassNames(), /* istanbul ignore next -- @preserve */ () => {} );\n}\n\n/**\n * Checks if styles of provided element can be matched against provided patterns.\n *\n * @param patterns Object with information about styles to match. Each key of the object will be\n * used as style name. Value of each key can be a string or regular expression to match against style value.\n * @param element Element which styles will be tested.\n * @returns Returns array with matched style names or `null` if no styles were matched.\n */\nfunction matchStyles( patterns: StylePatterns, element: Element ): Array<string> | undefined {\n\treturn matchPatterns( patterns, element.getStyleNames( true ), key => element.getStyle( key ) );\n}\n\n/**\n * An entity that is a valid pattern recognized by a matcher. `MatcherPattern` is used by {@link ~Matcher} to recognize\n * if a view element fits in a group of view elements described by the pattern.\n *\n * `MatcherPattern` can be given as a `String`, a `RegExp`, an `Object` or a `Function`.\n *\n * If `MatcherPattern` is given as a `String` or `RegExp`, it will match any view element that has a matching name:\n *\n * ```ts\n * // Match any element with name equal to 'div'.\n * const pattern = 'div';\n *\n * // Match any element which name starts on 'p'.\n * const pattern = /^p/;\n * ```\n *\n * If `MatcherPattern` is given as an `Object`, all the object's properties will be matched with view element properties.\n * If the view element does not meet all of the object's pattern properties, the match will not happen.\n * Available `Object` matching properties:\n *\n * Matching view element:\n *\n * ```ts\n * // Match view element's name using String:\n * const pattern = { name: 'p' };\n *\n * // or by providing RegExp:\n * const pattern = { name: /^(ul|ol)$/ };\n *\n * // The name can also be skipped to match any view element with matching attributes:\n * const pattern = {\n * \tattributes: {\n * \t\t'title': true\n * \t}\n * };\n * ```\n *\n * Matching view element attributes:\n *\n * ```ts\n * // Match view element with any attribute value.\n * const pattern = {\n * \tname: 'p',\n * \tattributes: true\n * };\n *\n * // Match view element which has matching attributes (String).\n * const pattern = {\n * \tname: 'figure',\n * \tattributes: 'title' // Match title attribute (can be empty).\n * };\n *\n * // Match view element which has matching attributes (RegExp).\n * const pattern = {\n * \tname: 'figure',\n * \tattributes: /^data-.*$/ // Match attributes starting with `data-` e.g. `data-foo` with any value (can be empty).\n * };\n *\n * // Match view element which has matching attributes (Object).\n * const pattern = {\n * \tname: 'figure',\n * \tattributes: {\n * \t\ttitle: 'foobar',           // Match `title` attribute with 'foobar' value.\n * \t\talt: true,                 // Match `alt` attribute with any value (can be empty).\n * \t\t'data-type': /^(jpg|png)$/ // Match `data-type` attribute with `jpg` or `png` value.\n * \t}\n * };\n *\n * // Match view element which has matching attributes (Array).\n * const pattern = {\n * \tname: 'figure',\n * \tattributes: [\n * \t\t'title',    // Match `title` attribute (can be empty).\n * \t\t/^data-*$/ // Match attributes starting with `data-` e.g. `data-foo` with any value (can be empty).\n * \t]\n * };\n *\n * // Match view element which has matching attributes (key-value pairs).\n * const pattern = {\n * \tname: 'input',\n * \tattributes: [\n * \t\t{\n * \t\t\tkey: 'type',                     // Match `type` as an attribute key.\n * \t\t\tvalue: /^(text|number|date)$/\t // Match `text`, `number` or `date` values.\n * \t\t},\n * \t\t{\n * \t\t\tkey: /^data-.*$/,                // Match attributes starting with `data-` e.g. `data-foo`.\n * \t\t\tvalue: true                      // Match any value (can be empty).\n * \t\t}\n * \t]\n * };\n * ```\n *\n * Matching view element styles:\n *\n * ```ts\n * // Match view element with any style.\n * const pattern = {\n * \tname: 'p',\n * \tstyles: true\n * };\n *\n * // Match view element which has matching styles (String).\n * const pattern = {\n * \tname: 'p',\n * \tstyles: 'color' // Match attributes with `color` style.\n * };\n *\n * // Match view element which has matching styles (RegExp).\n * const pattern = {\n * \tname: 'p',\n * \tstyles: /^border.*$/ // Match view element with any border style.\n * };\n *\n * // Match view element which has matching styles (Object).\n * const pattern = {\n * \tname: 'p',\n * \tstyles: {\n * \t\tcolor: /rgb\\((\\d{1,3}), (\\d{1,3}), (\\d{1,3})\\)/, // Match `color` in RGB format only.\n * \t\t'font-weight': 600,                              // Match `font-weight` only if it's `600`.\n * \t\t'text-decoration': true                          // Match any text decoration.\n * \t}\n * };\n *\n * // Match view element which has matching styles (Array).\n * const pattern = {\n * \tname: 'p',\n * \tstyles: [\n * \t\t'color',      // Match `color` with any value.\n * \t\t/^border.*$/ // Match all border properties.\n * \t]\n * };\n *\n * // Match view element which has matching styles (key-value pairs).\n * const pattern = {\n * \tname: 'p',\n * \tstyles: [\n * \t\t{\n * \t\t\tkey: 'color',                                  \t\t// Match `color` as an property key.\n * \t\t\tvalue: /rgb\\((\\d{1,3}), (\\d{1,3}), (\\d{1,3})\\)/\t\t// Match RGB format only.\n * \t\t},\n * \t\t{\n * \t\t\tkey: /^border.*$/, // Match any border style.\n * \t\t\tvalue: true        // Match any value.\n * \t\t}\n * \t]\n * };\n * ```\n *\n * Matching view element classes:\n *\n * ```ts\n * // Match view element with any class.\n * const pattern = {\n * \tname: 'p',\n * \tclasses: true\n * };\n *\n * // Match view element which has matching class (String).\n * const pattern = {\n * \tname: 'p',\n * \tclasses: 'highlighted' // Match `highlighted` class.\n * };\n *\n * // Match view element which has matching classes (RegExp).\n * const pattern = {\n * \tname: 'figure',\n * \tclasses: /^image-side-(left|right)$/ // Match `image-side-left` or `image-side-right` class.\n * };\n *\n * // Match view element which has matching classes (Object).\n * const pattern = {\n * \tname: 'p',\n * \tclasses: {\n * \t\thighlighted: true, // Match `highlighted` class.\n * \t\tmarker: true       // Match `marker` class.\n * \t}\n * };\n *\n * // Match view element which has matching classes (Array).\n * const pattern = {\n * \tname: 'figure',\n * \tclasses: [\n * \t\t'image',                    // Match `image` class.\n * \t\t/^image-side-(left|right)$/ // Match `image-side-left` or `image-side-right` class.\n * \t]\n * };\n *\n * // Match view element which has matching classes (key-value pairs).\n * const pattern = {\n * \tname: 'figure',\n * \tclasses: [\n * \t\t{\n * \t\t\tkey: 'image', // Match `image` class.\n * \t\t\tvalue: true\n * \t\t},\n * \t\t{\n * \t\t\tkey: /^image-side-(left|right)$/, // Match `image-side-left` or `image-side-right` class.\n * \t\t\tvalue: true\n * \t\t}\n * \t]\n * };\n * ```\n *\n * Pattern can combine multiple properties allowing for more complex view element matching:\n *\n * ```ts\n * const pattern = {\n * \tname: 'span',\n * \tattributes: [ 'title' ],\n * \tstyles: {\n * \t\t'font-weight': 'bold'\n * \t},\n * \tclasses: 'highlighted'\n * };\n * ```\n *\n * If `MatcherPattern` is given as a `Function`, the function takes a view element as a first and only parameter and\n * the function should decide whether that element matches. If so, it should return what part of the view element has been matched.\n * Otherwise, the function should return `null`. The returned result will be included in `match` property of the object\n * returned by {@link ~Matcher#match} call.\n *\n * ```ts\n * // Match an empty <div> element.\n * const pattern = element => {\n * \tif ( element.name == 'div' && element.childCount > 0 ) {\n * \t\t// Return which part of the element was matched.\n * \t\treturn { name: true };\n * \t}\n *\n * \treturn null;\n * };\n *\n * // Match a <p> element with big font (\"heading-like\" element).\n * const pattern = element => {\n * \tif ( element.name == 'p' ) {\n * \t\tconst fontSize = element.getStyle( 'font-size' );\n * \t\tconst size = fontSize.match( /(\\d+)/px );\n *\n * \t\tif ( size && Number( size[ 1 ] ) > 26 ) {\n * \t\t\treturn { name: true, attributes: [ 'font-size' ] };\n * \t\t}\n * \t}\n *\n * \treturn null;\n * };\n * ```\n *\n * `MatcherPattern` is defined in a way that it is a superset of {@link module:engine/view/elementdefinition~ElementDefinition},\n * that is, every `ElementDefinition` also can be used as a `MatcherPattern`.\n */\nexport type MatcherPattern = string | RegExp | MatcherFunctionPattern | MatcherObjectPattern;\n\n/**\n * A function describing `MatcherPattern`. See {@link ~MatcherPattern} for examples and other options.\n */\nexport type MatcherFunctionPattern = ( element: Element ) => Match | null;\n\n/**\n * An object describing `MatcherPattern`. See {@link ~MatcherPattern} for examples and other options.\n */\nexport interface MatcherObjectPattern {\n\n\t/**\n\t * View element name to match.\n\t */\n\tname?: string | RegExp;\n\n\tkey?: string;\n\n\t/**\n\t * View element's classes to match.\n\t */\n\tclasses?: ClassPatterns;\n\n\t/**\n\t * View element's styles to match.\n\t */\n\tstyles?: StylePatterns;\n\n\t/**\n\t * View element's attributes to match.\n\t */\n\tattributes?: AttributePatterns;\n}\n\n/**\n * An object representing matched element parts.\n */\nexport interface Match {\n\n\t/**\n\t * True if name of the element was matched.\n\t */\n\tname?: boolean;\n\n\t/**\n\t * Array with matched attribute names.\n\t */\n\tattributes?: Array<string>;\n\n\t/**\n\t * Array with matched class names.\n\t */\n\tclasses?: Array<string>;\n\n\t/**\n\t * Array with matched style names.\n\t */\n\tstyles?: Array<string>;\n}\n\n/**\n * The result of {@link ~Matcher#match}.\n */\nexport interface MatchResult {\n\n\t/**\n\t * Matched view element.\n\t */\n\telement: Element;\n\n\t/**\n\t * Pattern that was used to find matched element.\n\t */\n\tpattern: MatcherFunctionPattern | MatcherObjectPattern;\n\n\t/**\n\t * An object representing matched element parts.\n\t */\n\tmatch: Match;\n}\n\nexport type PropertyPatterns<ValuePattern = string | RegExp> =\n\ttrue |\n\tstring |\n\tRegExp |\n\tRecord<string, true | ValuePattern> |\n\tArray<string | RegExp | { key: string | RegExp; value: true | ValuePattern }>;\n\nexport type AttributePatterns = PropertyPatterns;\nexport type StylePatterns = PropertyPatterns;\nexport type ClassPatterns = PropertyPatterns<never>;\n\n/**\n * The key-value matcher pattern is missing key or value. Both must be present.\n * Refer the documentation: {@link module:engine/view/matcher~MatcherPattern}.\n *\n * @param pattern Pattern with missing properties.\n * @error matcher-pattern-missing-key-or-value\n */\n\n/**\n * The key-value matcher pattern for `attributes` option is using deprecated `style` key.\n *\n * Use `styles` matcher pattern option instead:\n *\n * ```ts\n * // Instead of:\n * const pattern = {\n * \tattributes: {\n * \t\tkey1: 'value1',\n * \t\tkey2: 'value2',\n * \t\tstyle: /^border.*$/\n * \t}\n * }\n *\n * // Use:\n * const pattern = {\n * \tattributes: {\n * \t\tkey1: 'value1',\n * \t\tkey2: 'value2'\n * \t},\n * \tstyles: /^border.*$/\n * }\n * ```\n *\n * Refer to the {@glink updating/guides/update-to-29##update-to-ckeditor-5-v2910 Migration to v29.1.0} guide\n * and {@link module:engine/view/matcher~MatcherPattern} documentation.\n *\n * @param pattern Pattern with missing properties.\n * @error matcher-pattern-deprecated-attributes-style-key\n */\n\n/**\n * The key-value matcher pattern for `attributes` option is using deprecated `class` key.\n *\n * Use `classes` matcher pattern option instead:\n *\n * ```ts\n * // Instead of:\n * const pattern = {\n * \tattributes: {\n * \t\tkey1: 'value1',\n * \t\tkey2: 'value2',\n * \t\tclass: 'foobar'\n * \t}\n * }\n *\n * // Use:\n * const pattern = {\n * \tattributes: {\n * \t\tkey1: 'value1',\n * \t\tkey2: 'value2'\n * \t},\n * \tclasses: 'foobar'\n * }\n * ```\n *\n * Refer to the {@glink updating/guides/update-to-29##update-to-ckeditor-5-v2910 Migration to v29.1.0} guide\n * and the {@link module:engine/view/matcher~MatcherPattern} documentation.\n *\n * @param pattern Pattern with missing properties.\n * @error matcher-pattern-deprecated-attributes-class-key\n */\n","import baseGetTag from './_baseGetTag.js';\nimport isObjectLike from './isObjectLike.js';\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n  return typeof value == 'symbol' ||\n    (isObjectLike(value) && baseGetTag(value) == symbolTag);\n}\n\nexport default isSymbol;\n","import isArray from './isArray.js';\nimport isSymbol from './isSymbol.js';\n\n/** Used to match property names within property paths. */\nvar reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n    reIsPlainProp = /^\\w*$/;\n\n/**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\nfunction isKey(value, object) {\n  if (isArray(value)) {\n    return false;\n  }\n  var type = typeof value;\n  if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n      value == null || isSymbol(value)) {\n    return true;\n  }\n  return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n    (object != null && value in Object(object));\n}\n\nexport default isKey;\n","import MapCache from './_MapCache.js';\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\nfunction memoize(func, resolver) {\n  if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n    throw new TypeError(FUNC_ERROR_TEXT);\n  }\n  var memoized = function() {\n    var args = arguments,\n        key = resolver ? resolver.apply(this, args) : args[0],\n        cache = memoized.cache;\n\n    if (cache.has(key)) {\n      return cache.get(key);\n    }\n    var result = func.apply(this, args);\n    memoized.cache = cache.set(key, result) || cache;\n    return result;\n  };\n  memoized.cache = new (memoize.Cache || MapCache);\n  return memoized;\n}\n\n// Expose `MapCache`.\nmemoize.Cache = MapCache;\n\nexport default memoize;\n","import memoizeCapped from './_memoizeCapped.js';\n\n/** Used to match property names within property paths. */\nvar rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n/** Used to match backslashes in property paths. */\nvar reEscapeChar = /\\\\(\\\\)?/g;\n\n/**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\nvar stringToPath = memoizeCapped(function(string) {\n  var result = [];\n  if (string.charCodeAt(0) === 46 /* . */) {\n    result.push('');\n  }\n  string.replace(rePropName, function(match, number, quote, subString) {\n    result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n  });\n  return result;\n});\n\nexport default stringToPath;\n","import memoize from './memoize.js';\n\n/** Used as the maximum memoize cache size. */\nvar MAX_MEMOIZE_SIZE = 500;\n\n/**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\nfunction memoizeCapped(func) {\n  var result = memoize(func, function(key) {\n    if (cache.size === MAX_MEMOIZE_SIZE) {\n      cache.clear();\n    }\n    return key;\n  });\n\n  var cache = result.cache;\n  return result;\n}\n\nexport default memoizeCapped;\n","/**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\nfunction arrayMap(array, iteratee) {\n  var index = -1,\n      length = array == null ? 0 : array.length,\n      result = Array(length);\n\n  while (++index < length) {\n    result[index] = iteratee(array[index], index, array);\n  }\n  return result;\n}\n\nexport default arrayMap;\n","import Symbol from './_Symbol.js';\nimport arrayMap from './_arrayMap.js';\nimport isArray from './isArray.js';\nimport isSymbol from './isSymbol.js';\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n    symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n/**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\nfunction baseToString(value) {\n  // Exit early for strings to avoid a performance hit in some environments.\n  if (typeof value == 'string') {\n    return value;\n  }\n  if (isArray(value)) {\n    // Recursively convert values (susceptible to call stack limits).\n    return arrayMap(value, baseToString) + '';\n  }\n  if (isSymbol(value)) {\n    return symbolToString ? symbolToString.call(value) : '';\n  }\n  var result = (value + '');\n  return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nexport default baseToString;\n","import baseToString from './_baseToString.js';\n\n/**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\nfunction toString(value) {\n  return value == null ? '' : baseToString(value);\n}\n\nexport default toString;\n","import isArray from './isArray.js';\nimport isKey from './_isKey.js';\nimport stringToPath from './_stringToPath.js';\nimport toString from './toString.js';\n\n/**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\nfunction castPath(value, object) {\n  if (isArray(value)) {\n    return value;\n  }\n  return isKey(value, object) ? [value] : stringToPath(toString(value));\n}\n\nexport default castPath;\n","/**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\nfunction last(array) {\n  var length = array == null ? 0 : array.length;\n  return length ? array[length - 1] : undefined;\n}\n\nexport default last;\n","import isSymbol from './isSymbol.js';\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\nfunction toKey(value) {\n  if (typeof value == 'string' || isSymbol(value)) {\n    return value;\n  }\n  var result = (value + '');\n  return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nexport default toKey;\n","import castPath from './_castPath.js';\nimport toKey from './_toKey.js';\n\n/**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\nfunction baseGet(object, path) {\n  path = castPath(path, object);\n\n  var index = 0,\n      length = path.length;\n\n  while (object != null && index < length) {\n    object = object[toKey(path[index++])];\n  }\n  return (index && index == length) ? object : undefined;\n}\n\nexport default baseGet;\n","/**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\nfunction baseSlice(array, start, end) {\n  var index = -1,\n      length = array.length;\n\n  if (start < 0) {\n    start = -start > length ? 0 : (length + start);\n  }\n  end = end > length ? length : end;\n  if (end < 0) {\n    end += length;\n  }\n  length = start > end ? 0 : ((end - start) >>> 0);\n  start >>>= 0;\n\n  var result = Array(length);\n  while (++index < length) {\n    result[index] = array[index + start];\n  }\n  return result;\n}\n\nexport default baseSlice;\n","import baseGet from './_baseGet.js';\nimport baseSlice from './_baseSlice.js';\n\n/**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\nfunction parent(object, path) {\n  return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n}\n\nexport default parent;\n","import castPath from './_castPath.js';\nimport last from './last.js';\nimport parent from './_parent.js';\nimport toKey from './_toKey.js';\n\n/**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\nfunction baseUnset(object, path) {\n  path = castPath(path, object);\n  object = parent(object, path);\n  return object == null || delete object[toKey(last(path))];\n}\n\nexport default baseUnset;\n","import baseUnset from './_baseUnset.js';\n\n/**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\nfunction unset(object, path) {\n  return object == null ? true : baseUnset(object, path);\n}\n\nexport default unset;\n","import baseGet from './_baseGet.js';\n\n/**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\nfunction get(object, path, defaultValue) {\n  var result = object == null ? undefined : baseGet(object, path);\n  return result === undefined ? defaultValue : result;\n}\n\nexport default get;\n","import baseAssignValue from './_baseAssignValue.js';\nimport eq from './eq.js';\n\n/**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignMergeValue(object, key, value) {\n  if ((value !== undefined && !eq(object[key], value)) ||\n      (value === undefined && !(key in object))) {\n    baseAssignValue(object, key, value);\n  }\n}\n\nexport default assignMergeValue;\n","import createBaseFor from './_createBaseFor.js';\n\n/**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nexport default baseFor;\n","/**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n  return function(object, iteratee, keysFunc) {\n    var index = -1,\n        iterable = Object(object),\n        props = keysFunc(object),\n        length = props.length;\n\n    while (length--) {\n      var key = props[fromRight ? length : ++index];\n      if (iteratee(iterable[key], key, iterable) === false) {\n        break;\n      }\n    }\n    return object;\n  };\n}\n\nexport default createBaseFor;\n","import isArrayLike from './isArrayLike.js';\nimport isObjectLike from './isObjectLike.js';\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n *  else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n  return isObjectLike(value) && isArrayLike(value);\n}\n\nexport default isArrayLikeObject;\n","/**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction safeGet(object, key) {\n  if (key === 'constructor' && typeof object[key] === 'function') {\n    return;\n  }\n\n  if (key == '__proto__') {\n    return;\n  }\n\n  return object[key];\n}\n\nexport default safeGet;\n","import copyObject from './_copyObject.js';\nimport keysIn from './keysIn.js';\n\n/**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n *   this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\nfunction toPlainObject(value) {\n  return copyObject(value, keysIn(value));\n}\n\nexport default toPlainObject;\n","import assignMergeValue from './_assignMergeValue.js';\nimport cloneBuffer from './_cloneBuffer.js';\nimport cloneTypedArray from './_cloneTypedArray.js';\nimport copyArray from './_copyArray.js';\nimport initCloneObject from './_initCloneObject.js';\nimport isArguments from './isArguments.js';\nimport isArray from './isArray.js';\nimport isArrayLikeObject from './isArrayLikeObject.js';\nimport isBuffer from './isBuffer.js';\nimport isFunction from './isFunction.js';\nimport isObject from './isObject.js';\nimport isPlainObject from './isPlainObject.js';\nimport isTypedArray from './isTypedArray.js';\nimport safeGet from './_safeGet.js';\nimport toPlainObject from './toPlainObject.js';\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n *  counterparts.\n */\nfunction baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n  var objValue = safeGet(object, key),\n      srcValue = safeGet(source, key),\n      stacked = stack.get(srcValue);\n\n  if (stacked) {\n    assignMergeValue(object, key, stacked);\n    return;\n  }\n  var newValue = customizer\n    ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n    : undefined;\n\n  var isCommon = newValue === undefined;\n\n  if (isCommon) {\n    var isArr = isArray(srcValue),\n        isBuff = !isArr && isBuffer(srcValue),\n        isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n    newValue = srcValue;\n    if (isArr || isBuff || isTyped) {\n      if (isArray(objValue)) {\n        newValue = objValue;\n      }\n      else if (isArrayLikeObject(objValue)) {\n        newValue = copyArray(objValue);\n      }\n      else if (isBuff) {\n        isCommon = false;\n        newValue = cloneBuffer(srcValue, true);\n      }\n      else if (isTyped) {\n        isCommon = false;\n        newValue = cloneTypedArray(srcValue, true);\n      }\n      else {\n        newValue = [];\n      }\n    }\n    else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n      newValue = objValue;\n      if (isArguments(objValue)) {\n        newValue = toPlainObject(objValue);\n      }\n      else if (!isObject(objValue) || isFunction(objValue)) {\n        newValue = initCloneObject(srcValue);\n      }\n    }\n    else {\n      isCommon = false;\n    }\n  }\n  if (isCommon) {\n    // Recursively merge objects and arrays (susceptible to call stack limits).\n    stack.set(srcValue, newValue);\n    mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n    stack['delete'](srcValue);\n  }\n  assignMergeValue(object, key, newValue);\n}\n\nexport default baseMergeDeep;\n","import Stack from './_Stack.js';\nimport assignMergeValue from './_assignMergeValue.js';\nimport baseFor from './_baseFor.js';\nimport baseMergeDeep from './_baseMergeDeep.js';\nimport isObject from './isObject.js';\nimport keysIn from './keysIn.js';\nimport safeGet from './_safeGet.js';\n\n/**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n *  counterparts.\n */\nfunction baseMerge(object, source, srcIndex, customizer, stack) {\n  if (object === source) {\n    return;\n  }\n  baseFor(source, function(srcValue, key) {\n    stack || (stack = new Stack);\n    if (isObject(srcValue)) {\n      baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n    }\n    else {\n      var newValue = customizer\n        ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n        : undefined;\n\n      if (newValue === undefined) {\n        newValue = srcValue;\n      }\n      assignMergeValue(object, key, newValue);\n    }\n  }, keysIn);\n}\n\nexport default baseMerge;\n","/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n  return value;\n}\n\nexport default identity;\n","/**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\nfunction apply(func, thisArg, args) {\n  switch (args.length) {\n    case 0: return func.call(thisArg);\n    case 1: return func.call(thisArg, args[0]);\n    case 2: return func.call(thisArg, args[0], args[1]);\n    case 3: return func.call(thisArg, args[0], args[1], args[2]);\n  }\n  return func.apply(thisArg, args);\n}\n\nexport default apply;\n","import apply from './_apply.js';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\nfunction overRest(func, start, transform) {\n  start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n  return function() {\n    var args = arguments,\n        index = -1,\n        length = nativeMax(args.length - start, 0),\n        array = Array(length);\n\n    while (++index < length) {\n      array[index] = args[start + index];\n    }\n    index = -1;\n    var otherArgs = Array(start + 1);\n    while (++index < start) {\n      otherArgs[index] = args[index];\n    }\n    otherArgs[start] = transform(array);\n    return apply(func, this, otherArgs);\n  };\n}\n\nexport default overRest;\n","/**\n * Creates a function that returns `value`.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {*} value The value to return from the new function.\n * @returns {Function} Returns the new constant function.\n * @example\n *\n * var objects = _.times(2, _.constant({ 'a': 1 }));\n *\n * console.log(objects);\n * // => [{ 'a': 1 }, { 'a': 1 }]\n *\n * console.log(objects[0] === objects[1]);\n * // => true\n */\nfunction constant(value) {\n  return function() {\n    return value;\n  };\n}\n\nexport default constant;\n","import constant from './constant.js';\nimport defineProperty from './_defineProperty.js';\nimport identity from './identity.js';\n\n/**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar baseSetToString = !defineProperty ? identity : function(func, string) {\n  return defineProperty(func, 'toString', {\n    'configurable': true,\n    'enumerable': false,\n    'value': constant(string),\n    'writable': true\n  });\n};\n\nexport default baseSetToString;\n","/** Used to detect hot functions by number of calls within a span of milliseconds. */\nvar HOT_COUNT = 800,\n    HOT_SPAN = 16;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeNow = Date.now;\n\n/**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\nfunction shortOut(func) {\n  var count = 0,\n      lastCalled = 0;\n\n  return function() {\n    var stamp = nativeNow(),\n        remaining = HOT_SPAN - (stamp - lastCalled);\n\n    lastCalled = stamp;\n    if (remaining > 0) {\n      if (++count >= HOT_COUNT) {\n        return arguments[0];\n      }\n    } else {\n      count = 0;\n    }\n    return func.apply(undefined, arguments);\n  };\n}\n\nexport default shortOut;\n","import baseSetToString from './_baseSetToString.js';\nimport shortOut from './_shortOut.js';\n\n/**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar setToString = shortOut(baseSetToString);\n\nexport default setToString;\n","import identity from './identity.js';\nimport overRest from './_overRest.js';\nimport setToString from './_setToString.js';\n\n/**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\nfunction baseRest(func, start) {\n  return setToString(overRest(func, start, identity), func + '');\n}\n\nexport default baseRest;\n","import eq from './eq.js';\nimport isArrayLike from './isArrayLike.js';\nimport isIndex from './_isIndex.js';\nimport isObject from './isObject.js';\n\n/**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n *  else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n  if (!isObject(object)) {\n    return false;\n  }\n  var type = typeof index;\n  if (type == 'number'\n        ? (isArrayLike(object) && isIndex(index, object.length))\n        : (type == 'string' && index in object)\n      ) {\n    return eq(object[index], value);\n  }\n  return false;\n}\n\nexport default isIterateeCall;\n","import baseRest from './_baseRest.js';\nimport isIterateeCall from './_isIterateeCall.js';\n\n/**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n  return baseRest(function(object, sources) {\n    var index = -1,\n        length = sources.length,\n        customizer = length > 1 ? sources[length - 1] : undefined,\n        guard = length > 2 ? sources[2] : undefined;\n\n    customizer = (assigner.length > 3 && typeof customizer == 'function')\n      ? (length--, customizer)\n      : undefined;\n\n    if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n      customizer = length < 3 ? undefined : customizer;\n      length = 1;\n    }\n    object = Object(object);\n    while (++index < length) {\n      var source = sources[index];\n      if (source) {\n        assigner(object, source, index, customizer);\n      }\n    }\n    return object;\n  });\n}\n\nexport default createAssigner;\n","import baseMerge from './_baseMerge.js';\nimport createAssigner from './_createAssigner.js';\n\n/**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n *   'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n *   'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\nvar merge = createAssigner(function(object, source, srcIndex) {\n  baseMerge(object, source, srcIndex);\n});\n\nexport default merge;\n","import assignValue from './_assignValue.js';\nimport castPath from './_castPath.js';\nimport isIndex from './_isIndex.js';\nimport isObject from './isObject.js';\nimport toKey from './_toKey.js';\n\n/**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\nfunction baseSet(object, path, value, customizer) {\n  if (!isObject(object)) {\n    return object;\n  }\n  path = castPath(path, object);\n\n  var index = -1,\n      length = path.length,\n      lastIndex = length - 1,\n      nested = object;\n\n  while (nested != null && ++index < length) {\n    var key = toKey(path[index]),\n        newValue = value;\n\n    if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n      return object;\n    }\n\n    if (index != lastIndex) {\n      var objValue = nested[key];\n      newValue = customizer ? customizer(objValue, key, nested) : undefined;\n      if (newValue === undefined) {\n        newValue = isObject(objValue)\n          ? objValue\n          : (isIndex(path[index + 1]) ? [] : {});\n      }\n    }\n    assignValue(nested, key, newValue);\n    nested = nested[key];\n  }\n  return object;\n}\n\nexport default baseSet;\n","import baseSet from './_baseSet.js';\n\n/**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\nfunction set(object, path, value) {\n  return object == null ? object : baseSet(object, path, value);\n}\n\nexport default set;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/stylesmap\n */\n\nimport { get, isObject, merge, set, unset } from 'lodash-es';\n\n/**\n * Styles map. Allows handling (adding, removing, retrieving) a set of style rules (usually, of an element).\n *\n * The styles map is capable of normalizing style names so e.g. the following operations are possible:\n */\nexport default class StylesMap {\n\t/**\n\t * Keeps an internal representation of styles map. Normalized styles are kept as object tree to allow unified modification and\n\t * value access model using lodash's get, set, unset, etc methods.\n\t *\n\t * When no style processor rules are defined it acts as simple key-value storage.\n\t */\n\tprivate _styles: Record<string, string>;\n\n\t/**\n\t * An instance of the {@link module:engine/view/stylesmap~StylesProcessor}.\n\t */\n\tprivate readonly _styleProcessor: StylesProcessor;\n\n\t/**\n\t * Creates Styles instance.\n\t */\n\tconstructor( styleProcessor: StylesProcessor ) {\n\t\tthis._styles = {};\n\t\tthis._styleProcessor = styleProcessor;\n\t}\n\n\t/**\n\t * Returns true if style map has no styles set.\n\t */\n\tpublic get isEmpty(): boolean {\n\t\tconst entries = Object.entries( this._styles );\n\t\tconst from = Array.from( entries );\n\n\t\treturn !from.length;\n\t}\n\n\t/**\n\t * Number of styles defined.\n\t */\n\tpublic get size(): number {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn 0;\n\t\t}\n\n\t\treturn this.getStyleNames().length;\n\t}\n\n\t/**\n\t * Set styles map to a new value.\n\t *\n\t * ```ts\n\t * styles.setTo( 'border:1px solid blue;margin-top:1px;' );\n\t * ```\n\t */\n\tpublic setTo( inlineStyle: string ): void {\n\t\tthis.clear();\n\n\t\tconst parsedStyles = Array.from( parseInlineStyles( inlineStyle ).entries() );\n\n\t\tfor ( const [ key, value ] of parsedStyles ) {\n\t\t\tthis._styleProcessor.toNormalizedForm( key, value, this._styles );\n\t\t}\n\t}\n\n\t/**\n\t * Checks if a given style is set.\n\t *\n\t * ```ts\n\t * styles.setTo( 'margin-left:1px;' );\n\t *\n\t * styles.has( 'margin-left' );    // -> true\n\t * styles.has( 'padding' );        // -> false\n\t * ```\n\t *\n\t * **Note**: This check supports normalized style names.\n\t *\n\t * ```ts\n\t * // Enable 'margin' shorthand processing:\n\t * editor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t * styles.setTo( 'margin:2px;' );\n\t *\n\t * styles.has( 'margin' );         // -> true\n\t * styles.has( 'margin-top' );     // -> true\n\t * styles.has( 'margin-left' );    // -> true\n\t *\n\t * styles.remove( 'margin-top' );\n\t *\n\t * styles.has( 'margin' );         // -> false\n\t * styles.has( 'margin-top' );     // -> false\n\t * styles.has( 'margin-left' );    // -> true\n\t * ```\n\t *\n\t * @param name Style name.\n\t */\n\tpublic has( name: string ): boolean {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst styles = this._styleProcessor.getReducedForm( name, this._styles );\n\n\t\tconst propertyDescriptor = styles.find( ( [ property ] ) => property === name );\n\n\t\t// Only return a value if it is set;\n\t\treturn Array.isArray( propertyDescriptor );\n\t}\n\n\t/**\n\t * Sets a given style.\n\t *\n\t * Can insert one by one:\n\t *\n\t * ```ts\n\t * styles.set( 'color', 'blue' );\n\t * styles.set( 'margin-right', '1em' );\n\t * ```\n\t *\n\t * ***Note**:* This method uses {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules\n\t * enabled style processor rules} to normalize passed values.\n\t *\n\t * ```ts\n\t * // Enable 'margin' shorthand processing:\n\t * editor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t * styles.set( 'margin', '2px' );\n\t * ```\n\t *\n\t * The above code will set margin to:\n\t *\n\t * ```ts\n\t * styles.getNormalized( 'margin' );\n\t * // -> { top: '2px', right: '2px', bottom: '2px', left: '2px' }\n\t * ```\n\t *\n\t * Which makes it possible to retrieve a \"sub-value\":\n\t *\n\t * ```ts\n\t * styles.get( 'margin-left' );       // -> '2px'\n\t * ```\n\t *\n\t * Or modify it:\n\t *\n\t * ```ts\n\t * styles.remove( 'margin-left' );\n\t *\n\t * styles.getNormalized( 'margin' );  // -> { top: '1px', bottom: '1px', right: '1px' }\n\t * styles.toString();                 // -> 'margin-bottom:1px;margin-right:1px;margin-top:1px;'\n\t * ```\n\t *\n\t * This method also allows to set normalized values directly (if a particular styles processor rule was enabled):\n\t *\n\t * ```ts\n\t * styles.set( 'border-color', { top: 'blue' } );\n\t * styles.set( 'margin', { right: '2em' } );\n\t *\n\t * styles.toString();                 // -> 'border-color-top:blue;margin-right:2em;'\n\t * ```\n\t *\n\t * @label KEY_VALUE\n\t * @param name Style property name.\n\t * @param value Value to set.\n\t */\n\tpublic set( name: string, value: StyleValue ): void;\n\n\t/**\n\t * Sets many styles at once:\n\t *\n\t * ```ts\n\t * styles.set( {\n\t * \tcolor: 'blue',\n\t * \t'margin-right': '1em'\n\t * } );\n\t * ```\n\t *\n\t * It is equivalent to:\n\t *\n\t * ```ts\n\t * styles.set( 'color', 'blue' );\n\t * styles.set( 'margin-right', '1em' );\n\t * ```\n\t *\n\t * See {@link #set:KEY_VALUE}\n\t *\n\t * @label CONFIG_OBJECT\n\t */\n\tpublic set( styles: Styles ): void;\n\n\tpublic set( nameOrObject: string | Styles, valueOrObject?: StyleValue ): void {\n\t\tif ( isObject( nameOrObject ) ) {\n\t\t\tfor ( const [ key, value ] of Object.entries( nameOrObject ) ) {\n\t\t\t\tthis._styleProcessor.toNormalizedForm( key, value, this._styles );\n\t\t\t}\n\t\t} else {\n\t\t\tthis._styleProcessor.toNormalizedForm( nameOrObject, valueOrObject!, this._styles );\n\t\t}\n\t}\n\n\t/**\n\t * Removes given style.\n\t *\n\t * ```ts\n\t * styles.setTo( 'background:#f00;margin-right:2px;' );\n\t *\n\t * styles.remove( 'background' );\n\t *\n\t * styles.toString();   // -> 'margin-right:2px;'\n\t * ```\n\t *\n\t * ***Note**:* This method uses {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules\n\t * enabled style processor rules} to normalize passed values.\n\t *\n\t * ```ts\n\t * // Enable 'margin' shorthand processing:\n\t * editor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t * styles.setTo( 'margin:1px' );\n\t *\n\t * styles.remove( 'margin-top' );\n\t * styles.remove( 'margin-right' );\n\t *\n\t * styles.toString(); // -> 'margin-bottom:1px;margin-left:1px;'\n\t * ```\n\t *\n\t * @param name Style name.\n\t */\n\tpublic remove( name: string ): void {\n\t\tconst path = toPath( name );\n\n\t\tunset( this._styles, path );\n\t\tdelete this._styles[ name ];\n\n\t\tthis._cleanEmptyObjectsOnPath( path );\n\t}\n\n\t/**\n\t * Returns a normalized style object or a single value.\n\t *\n\t * ```ts\n\t * // Enable 'margin' shorthand processing:\n\t * editor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t * const styles = new Styles();\n\t * styles.setTo( 'margin:1px 2px 3em;' );\n\t *\n\t * styles.getNormalized( 'margin' );\n\t * // will log:\n\t * // {\n\t * //     top: '1px',\n\t * //     right: '2px',\n\t * //     bottom: '3em',\n\t * //     left: '2px'     // normalized value from margin shorthand\n\t * // }\n\t *\n\t * styles.getNormalized( 'margin-left' ); // -> '2px'\n\t * ```\n\t *\n\t * **Note**: This method will only return normalized styles if a style processor was defined.\n\t *\n\t * @param name Style name.\n\t */\n\tpublic getNormalized( name?: string ): StyleValue {\n\t\treturn this._styleProcessor.getNormalized( name, this._styles );\n\t}\n\n\t/**\n\t * Returns a normalized style string. Styles are sorted by name.\n\t *\n\t * ```ts\n\t * styles.set( 'margin' , '1px' );\n\t * styles.set( 'background', '#f00' );\n\t *\n\t * styles.toString(); // -> 'background:#f00;margin:1px;'\n\t * ```\n\t *\n\t * **Note**: This method supports normalized styles if defined.\n\t *\n\t * ```ts\n\t * // Enable 'margin' shorthand processing:\n\t * editor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t * styles.set( 'margin' , '1px' );\n\t * styles.set( 'background', '#f00' );\n\t * styles.remove( 'margin-top' );\n\t * styles.remove( 'margin-right' );\n\t *\n\t * styles.toString(); // -> 'background:#f00;margin-bottom:1px;margin-left:1px;'\n\t * ```\n\t */\n\tpublic toString(): string {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn '';\n\t\t}\n\n\t\treturn this._getStylesEntries()\n\t\t\t.map( arr => arr.join( ':' ) )\n\t\t\t.sort()\n\t\t\t.join( ';' ) + ';';\n\t}\n\n\t/**\n\t * Returns property as a value string or undefined if property is not set.\n\t *\n\t * ```ts\n\t * // Enable 'margin' shorthand processing:\n\t * editor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t * const styles = new Styles();\n\t * styles.setTo( 'margin:1px;' );\n\t * styles.set( 'margin-bottom', '3em' );\n\t *\n\t * styles.getAsString( 'margin' ); // -> 'margin: 1px 1px 3em;'\n\t * ```\n\t *\n\t * Note, however, that all sub-values must be set for the longhand property name to return a value:\n\t *\n\t * ```ts\n\t * const styles = new Styles();\n\t * styles.setTo( 'margin:1px;' );\n\t * styles.remove( 'margin-bottom' );\n\t *\n\t * styles.getAsString( 'margin' ); // -> undefined\n\t * ```\n\t *\n\t * In the above scenario, it is not possible to return a `margin` value, so `undefined` is returned.\n\t * Instead, you should use:\n\t *\n\t * ```ts\n\t * const styles = new Styles();\n\t * styles.setTo( 'margin:1px;' );\n\t * styles.remove( 'margin-bottom' );\n\t *\n\t * for ( const styleName of styles.getStyleNames() ) {\n\t * \tconsole.log( styleName, styles.getAsString( styleName ) );\n\t * }\n\t * // 'margin-top', '1px'\n\t * // 'margin-right', '1px'\n\t * // 'margin-left', '1px'\n\t * ```\n\t *\n\t * In general, it is recommend to iterate over style names like in the example above. This way, you will always get all\n\t * the currently set style values. So, if all the 4 margin values would be set\n\t * the for-of loop above would yield only `'margin'`, `'1px'`:\n\t *\n\t * ```ts\n\t * const styles = new Styles();\n\t * styles.setTo( 'margin:1px;' );\n\t *\n\t * for ( const styleName of styles.getStyleNames() ) {\n\t * \tconsole.log( styleName, styles.getAsString( styleName ) );\n\t * }\n\t * // 'margin', '1px'\n\t * ```\n\t *\n\t * **Note**: To get a normalized version of a longhand property use the {@link #getNormalized `#getNormalized()`} method.\n\t */\n\tpublic getAsString( propertyName: string ): string | undefined {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( this._styles[ propertyName ] && !isObject( this._styles[ propertyName ] ) ) {\n\t\t\t// Try return styles set directly - values that are not parsed.\n\t\t\treturn this._styles[ propertyName ];\n\t\t}\n\n\t\tconst styles = this._styleProcessor.getReducedForm( propertyName, this._styles );\n\n\t\tconst propertyDescriptor = styles.find( ( [ property ] ) => property === propertyName );\n\n\t\t// Only return a value if it is set;\n\t\tif ( Array.isArray( propertyDescriptor ) ) {\n\t\t\treturn propertyDescriptor[ 1 ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns all style properties names as they would appear when using {@link #toString `#toString()`}.\n\t *\n\t * When `expand` is set to true and there's a shorthand style property set, it will also return all equivalent styles:\n\t *\n\t * ```ts\n\t * stylesMap.setTo( 'margin: 1em' )\n\t * ```\n\t *\n\t * will be expanded to:\n\t *\n\t * ```ts\n\t * [ 'margin', 'margin-top', 'margin-right', 'margin-bottom', 'margin-left' ]\n\t * ```\n\t *\n\t * @param expand Expand shorthand style properties and all return equivalent style representations.\n\t */\n\tpublic getStyleNames( expand = false ): Array<string> {\n\t\tif ( this.isEmpty ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tif ( expand ) {\n\t\t\treturn this._styleProcessor.getStyleNames( this._styles );\n\t\t}\n\n\t\tconst entries = this._getStylesEntries();\n\n\t\treturn entries.map( ( [ key ] ) => key );\n\t}\n\n\t/**\n\t * Removes all styles.\n\t */\n\tpublic clear(): void {\n\t\tthis._styles = {};\n\t}\n\n\t/**\n\t * Returns normalized styles entries for further processing.\n\t */\n\tprivate _getStylesEntries(): Array<PropertyDescriptor> {\n\t\tconst parsed: Array<PropertyDescriptor> = [];\n\n\t\tconst keys = Object.keys( this._styles );\n\n\t\tfor ( const key of keys ) {\n\t\t\tparsed.push( ...this._styleProcessor.getReducedForm( key, this._styles ) );\n\t\t}\n\n\t\treturn parsed;\n\t}\n\n\t/**\n\t * Removes empty objects upon removing an entry from internal object.\n\t */\n\tprivate _cleanEmptyObjectsOnPath( path: string ): void {\n\t\tconst pathParts = path.split( '.' );\n\t\tconst isChildPath = pathParts.length > 1;\n\n\t\tif ( !isChildPath ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst parentPath = pathParts.splice( 0, pathParts.length - 1 ).join( '.' );\n\n\t\tconst parentObject = get( this._styles, parentPath );\n\n\t\tif ( !parentObject ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst isParentEmpty = !Array.from( Object.keys( parentObject ) ).length;\n\n\t\tif ( isParentEmpty ) {\n\t\t\tthis.remove( parentPath );\n\t\t}\n\t}\n}\n\n/**\n * Style processor is responsible for writing and reading a normalized styles object.\n */\nexport class StylesProcessor {\n\tprivate readonly _normalizers: Map<string, Normalizer>;\n\tprivate readonly _extractors: Map<string, Extractor>;\n\tprivate readonly _reducers: Map<string, Reducer>;\n\tprivate readonly _consumables: Map<string, Array<string>>;\n\n\t/**\n\t * Creates StylesProcessor instance.\n\t *\n\t * @internal\n\t */\n\tconstructor() {\n\t\tthis._normalizers = new Map();\n\t\tthis._extractors = new Map();\n\t\tthis._reducers = new Map();\n\t\tthis._consumables = new Map();\n\t}\n\n\t/**\n\t * Parse style string value to a normalized object and appends it to styles object.\n\t *\n\t * ```ts\n\t * const styles = {};\n\t *\n\t * stylesProcessor.toNormalizedForm( 'margin', '1px', styles );\n\t *\n\t * // styles will consist: { margin: { top: '1px', right: '1px', bottom: '1px', left: '1px; } }\n\t * ```\n\t *\n\t * **Note**: To define normalizer callbacks use {@link #setNormalizer}.\n\t *\n\t * @param name Name of style property.\n\t * @param propertyValue Value of style property.\n\t * @param styles Object holding normalized styles.\n\t */\n\tpublic toNormalizedForm( name: string, propertyValue: StyleValue, styles: Styles ): void {\n\t\tif ( isObject( propertyValue ) ) {\n\t\t\tappendStyleValue( styles, toPath( name ), propertyValue );\n\n\t\t\treturn;\n\t\t}\n\n\t\tif ( this._normalizers.has( name ) ) {\n\t\t\tconst normalizer = this._normalizers.get( name )!;\n\n\t\t\tconst { path, value } = normalizer( propertyValue );\n\n\t\t\tappendStyleValue( styles, path, value );\n\t\t} else {\n\t\t\tappendStyleValue( styles, name, propertyValue );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a normalized version of a style property.\n\t *\n\t * ```ts\n\t * const styles = {\n\t * \tmargin: { top: '1px', right: '1px', bottom: '1px', left: '1px; },\n\t * \tbackground: { color: '#f00' }\n\t * };\n\t *\n\t * stylesProcessor.getNormalized( 'background' );\n\t * // will return: { color: '#f00' }\n\t *\n\t * stylesProcessor.getNormalized( 'margin-top' );\n\t * // will return: '1px'\n\t * ```\n\t *\n\t * **Note**: In some cases extracting single value requires defining an extractor callback {@link #setExtractor}.\n\t *\n\t * @param name Name of style property.\n\t * @param styles Object holding normalized styles.\n\t */\n\tpublic getNormalized( name: string | undefined, styles: Styles ): StyleValue {\n\t\tif ( !name ) {\n\t\t\treturn merge( {}, styles );\n\t\t}\n\n\t\t// Might be empty string.\n\t\tif ( styles[ name ] !== undefined ) {\n\t\t\treturn styles[ name ];\n\t\t}\n\n\t\tif ( this._extractors.has( name ) ) {\n\t\t\tconst extractor = this._extractors.get( name )!;\n\n\t\t\tif ( typeof extractor === 'string' ) {\n\t\t\t\treturn get( styles, extractor );\n\t\t\t}\n\n\t\t\tconst value = extractor( name, styles );\n\n\t\t\tif ( value ) {\n\t\t\t\treturn value;\n\t\t\t}\n\t\t}\n\n\t\treturn get( styles, toPath( name ) );\n\t}\n\n\t/**\n\t * Returns a reduced form of style property form normalized object.\n\t *\n\t * For default margin reducer, the below code:\n\t *\n\t * ```ts\n\t * stylesProcessor.getReducedForm( 'margin', {\n\t * \tmargin: { top: '1px', right: '1px', bottom: '2px', left: '1px; }\n\t * } );\n\t * ```\n\t *\n\t * will return:\n\t *\n\t * ```ts\n\t * [\n\t * \t[ 'margin', '1px 1px 2px' ]\n\t * ]\n\t * ```\n\t *\n\t * because it might be represented as a shorthand 'margin' value. However if one of margin long hand values is missing it should return:\n\t *\n\t * ```ts\n\t * [\n\t * \t[ 'margin-top', '1px' ],\n\t * \t[ 'margin-right', '1px' ],\n\t * \t[ 'margin-bottom', '2px' ]\n\t * \t// the 'left' value is missing - cannot use 'margin' shorthand.\n\t * ]\n\t * ```\n\t *\n\t * **Note**: To define reducer callbacks use {@link #setReducer}.\n\t *\n\t * @param name Name of style property.\n\t */\n\tpublic getReducedForm( name: string, styles: Styles ): Array<PropertyDescriptor> {\n\t\tconst normalizedValue = this.getNormalized( name, styles );\n\n\t\t// Might be empty string.\n\t\tif ( normalizedValue === undefined ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tif ( this._reducers.has( name ) ) {\n\t\t\tconst reducer = this._reducers.get( name )!;\n\n\t\t\treturn reducer( normalizedValue );\n\t\t}\n\n\t\treturn [ [ name, normalizedValue as string ] ];\n\t}\n\n\t/**\n\t * Return all style properties. Also expand shorthand properties (e.g. `margin`, `background`) if respective extractor is available.\n\t *\n\t * @param styles Object holding normalized styles.\n\t */\n\tpublic getStyleNames( styles: Styles ): Array<string> {\n\t\t// Find all extractable styles that have a value.\n\t\tconst expandedStyleNames = Array.from( this._consumables.keys() ).filter( name => {\n\t\t\tconst style = this.getNormalized( name, styles );\n\n\t\t\tif ( style && typeof style == 'object' ) {\n\t\t\t\treturn Object.keys( style ).length;\n\t\t\t}\n\n\t\t\treturn style;\n\t\t} );\n\n\t\t// For simple styles (for example `color`) we don't have a map of those styles\n\t\t// but they are 1 to 1 with normalized object keys.\n\t\tconst styleNamesKeysSet = new Set( [\n\t\t\t...expandedStyleNames,\n\t\t\t...Object.keys( styles )\n\t\t] );\n\n\t\treturn Array.from( styleNamesKeysSet.values() );\n\t}\n\n\t/**\n\t * Returns related style names.\n\t *\n\t * ```ts\n\t * stylesProcessor.getRelatedStyles( 'margin' );\n\t * // will return: [ 'margin-top', 'margin-right', 'margin-bottom', 'margin-left' ];\n\t *\n\t * stylesProcessor.getRelatedStyles( 'margin-top' );\n\t * // will return: [ 'margin' ];\n\t * ```\n\t *\n\t * **Note**: To define new style relations load an existing style processor or use\n\t * {@link module:engine/view/stylesmap~StylesProcessor#setStyleRelation `StylesProcessor.setStyleRelation()`}.\n\t */\n\tpublic getRelatedStyles( name: string ): Array<string> {\n\t\treturn this._consumables.get( name ) || [];\n\t}\n\n\t/**\n\t * Adds a normalizer method for a style property.\n\t *\n\t * A normalizer returns describing how the value should be normalized.\n\t *\n\t * For instance 'margin' style is a shorthand for four margin values:\n\t *\n\t * - 'margin-top'\n\t * - 'margin-right'\n\t * - 'margin-bottom'\n\t * - 'margin-left'\n\t *\n\t * and can be written in various ways if some values are equal to others. For instance `'margin: 1px 2em;'` is a shorthand for\n\t * `'margin-top: 1px;margin-right: 2em;margin-bottom: 1px;margin-left: 2em'`.\n\t *\n\t * A normalizer should parse various margin notations as a single object:\n\t *\n\t * ```ts\n\t * const styles = {\n\t * \tmargin: {\n\t * \t\ttop: '1px',\n\t * \t\tright: '2em',\n\t * \t\tbottom: '1px',\n\t * \t\tleft: '2em'\n\t * \t}\n\t * };\n\t * ```\n\t *\n\t * Thus a normalizer for 'margin' style should return an object defining style path and value to store:\n\t *\n\t * ```ts\n\t * const returnValue = {\n\t * \tpath: 'margin',\n\t * \tvalue: {\n\t * \t\ttop: '1px',\n\t * \t\tright: '2em',\n\t * \t\tbottom: '1px',\n\t * \t\tleft: '2em'\n\t * \t}\n\t * };\n\t * ```\n\t *\n\t * Additionally to fully support all margin notations there should be also defined 4 normalizers for longhand margin notations. Below\n\t * is an example for 'margin-top' style property normalizer:\n\t *\n\t * ```ts\n\t * stylesProcessor.setNormalizer( 'margin-top', valueString => {\n\t * \treturn {\n\t * \t\tpath: 'margin.top',\n\t * \t\tvalue: valueString\n\t * \t}\n\t * } );\n\t * ```\n\t */\n\tpublic setNormalizer( name: string, callback: Normalizer ): void {\n\t\tthis._normalizers.set( name, callback );\n\t}\n\n\t/**\n\t * Adds a extractor callback for a style property.\n\t *\n\t * Most normalized style values are stored as one level objects. It is assumed that `'margin-top'` style will be stored as:\n\t *\n\t * ```ts\n\t * const styles = {\n\t * \tmargin: {\n\t * \t\ttop: 'value'\n\t * \t}\n\t * }\n\t * ```\n\t *\n\t * However, some styles can have conflicting notations and thus it might be harder to extract a style value from shorthand. For instance\n\t * the 'border-top-style' can be defined using `'border-top:solid'`, `'border-style:solid none none none'` or by `'border:solid'`\n\t * shorthands. The default border styles processors stores styles as:\n\t *\n\t * ```ts\n\t * const styles = {\n\t * \tborder: {\n\t * \t\tstyle: {\n\t * \t\t\ttop: 'solid'\n\t * \t\t}\n\t * \t}\n\t * }\n\t * ```\n\t *\n\t * as it is better to modify border style independently from other values. On the other part the output of the border might be\n\t * desired as `border-top`, `border-left`, etc notation.\n\t *\n\t * In the above example an extractor should return a side border value that combines style, color and width:\n\t *\n\t * ```ts\n\t * styleProcessor.setExtractor( 'border-top', styles => {\n\t * \treturn {\n\t * \t\tcolor: styles.border.color.top,\n\t * \t\tstyle: styles.border.style.top,\n\t * \t\twidth: styles.border.width.top\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * @param callbackOrPath Callback that return a requested value or path string for single values.\n\t */\n\tpublic setExtractor( name: string, callbackOrPath: Extractor ): void {\n\t\tthis._extractors.set( name, callbackOrPath );\n\t}\n\n\t/**\n\t * Adds a reducer callback for a style property.\n\t *\n\t * Reducer returns a minimal notation for given style name. For longhand properties it is not required to write a reducer as\n\t * by default the direct value from style path is taken.\n\t *\n\t * For shorthand styles a reducer should return minimal style notation either by returning single name-value tuple or multiple tuples\n\t * if a shorthand cannot be used. For instance for a margin shorthand a reducer might return:\n\t *\n\t * ```ts\n\t * const marginShortHandTuple = [\n\t * \t[ 'margin', '1px 1px 2px' ]\n\t * ];\n\t * ```\n\t *\n\t * or a longhand tuples for defined values:\n\t *\n\t * ```ts\n\t * // Considering margin.bottom and margin.left are undefined.\n\t * const marginLonghandsTuples = [\n\t * \t[ 'margin-top', '1px' ],\n\t * \t[ 'margin-right', '1px' ]\n\t * ];\n\t * ```\n\t *\n\t * A reducer obtains a normalized style value:\n\t *\n\t * ```ts\n\t * // Simplified reducer that always outputs 4 values which are always present:\n\t * stylesProcessor.setReducer( 'margin', margin => {\n\t * \treturn [\n\t * \t\t[ 'margin', `${ margin.top } ${ margin.right } ${ margin.bottom } ${ margin.left }` ]\n\t * \t]\n\t * } );\n\t * ```\n\t */\n\tpublic setReducer( name: string, callback: Reducer ): void {\n\t\tthis._reducers.set( name, callback );\n\t}\n\n\t/**\n\t * Defines a style shorthand relation to other style notations.\n\t *\n\t * ```ts\n\t * stylesProcessor.setStyleRelation( 'margin', [\n\t * \t'margin-top',\n\t * \t'margin-right',\n\t * \t'margin-bottom',\n\t * \t'margin-left'\n\t * ] );\n\t * ```\n\t *\n\t * This enables expanding of style names for shorthands. For instance, if defined,\n\t * {@link module:engine/conversion/viewconsumable~ViewConsumable view consumable} items are automatically created\n\t * for long-hand margin style notation alongside the `'margin'` item.\n\t *\n\t * This means that when an element being converted has a style `margin`, a converter for `margin-left` will work just\n\t * fine since the view consumable will contain a consumable `margin-left` item (thanks to the relation) and\n\t * `element.getStyle( 'margin-left' )` will work as well assuming that the style processor was correctly configured.\n\t * However, once `margin-left` is consumed, `margin` will not be consumable anymore.\n\t */\n\tpublic setStyleRelation( shorthandName: string, styleNames: Array<string> ): void {\n\t\tthis._mapStyleNames( shorthandName, styleNames );\n\n\t\tfor ( const alsoName of styleNames ) {\n\t\t\tthis._mapStyleNames( alsoName, [ shorthandName ] );\n\t\t}\n\t}\n\n\t/**\n\t * Set two-way binding of style names.\n\t */\n\tprivate _mapStyleNames( name: string, styleNames: Array<string> ) {\n\t\tif ( !this._consumables.has( name ) ) {\n\t\t\tthis._consumables.set( name, [] );\n\t\t}\n\n\t\tthis._consumables.get( name )!.push( ...styleNames );\n\t}\n}\n\n/**\n * Parses inline styles and puts property - value pairs into styles map.\n *\n * @param stylesString Styles to parse.\n * @returns Map of parsed properties and values.\n */\nfunction parseInlineStyles( stylesString: string ): Map<string, string> {\n\t// `null` if no quote was found in input string or last found quote was a closing quote. See below.\n\tlet quoteType = null;\n\tlet propertyNameStart = 0;\n\tlet propertyValueStart = 0;\n\tlet propertyName = null;\n\n\tconst stylesMap = new Map();\n\n\t// Do not set anything if input string is empty.\n\tif ( stylesString === '' ) {\n\t\treturn stylesMap;\n\t}\n\n\t// Fix inline styles that do not end with `;` so they are compatible with algorithm below.\n\tif ( stylesString.charAt( stylesString.length - 1 ) != ';' ) {\n\t\tstylesString = stylesString + ';';\n\t}\n\n\t// Seek the whole string for \"special characters\".\n\tfor ( let i = 0; i < stylesString.length; i++ ) {\n\t\tconst char = stylesString.charAt( i );\n\n\t\tif ( quoteType === null ) {\n\t\t\t// No quote found yet or last found quote was a closing quote.\n\t\t\tswitch ( char ) {\n\t\t\t\tcase ':':\n\t\t\t\t\t// Most of time colon means that property name just ended.\n\t\t\t\t\t// Sometimes however `:` is found inside property value (for example in background image url).\n\t\t\t\t\tif ( !propertyName ) {\n\t\t\t\t\t\t// Treat this as end of property only if property name is not already saved.\n\t\t\t\t\t\t// Save property name.\n\t\t\t\t\t\tpropertyName = stylesString.substr( propertyNameStart, i - propertyNameStart );\n\t\t\t\t\t\t// Save this point as the start of property value.\n\t\t\t\t\t\tpropertyValueStart = i + 1;\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase '\"':\n\t\t\t\tcase '\\'':\n\t\t\t\t\t// Opening quote found (this is an opening quote, because `quoteType` is `null`).\n\t\t\t\t\tquoteType = char;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase ';': {\n\t\t\t\t\t// Property value just ended.\n\t\t\t\t\t// Use previously stored property value start to obtain property value.\n\t\t\t\t\tconst propertyValue = stylesString.substr( propertyValueStart, i - propertyValueStart );\n\n\t\t\t\t\tif ( propertyName ) {\n\t\t\t\t\t\t// Save parsed part.\n\t\t\t\t\t\tstylesMap.set( propertyName.trim(), propertyValue.trim() );\n\t\t\t\t\t}\n\n\t\t\t\t\tpropertyName = null;\n\n\t\t\t\t\t// Save this point as property name start. Property name starts immediately after previous property value ends.\n\t\t\t\t\tpropertyNameStart = i + 1;\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( char === quoteType ) {\n\t\t\t// If a quote char is found and it is a closing quote, mark this fact by `null`-ing `quoteType`.\n\t\t\tquoteType = null;\n\t\t}\n\t}\n\n\treturn stylesMap;\n}\n\n/**\n * Return lodash compatible path from style name.\n */\nfunction toPath( name: string ): string {\n\treturn name.replace( '-', '.' );\n}\n\n/**\n * Appends style definition to the styles object.\n */\nfunction appendStyleValue( stylesObject: Styles, nameOrPath: string, valueOrObject: StyleValue ) {\n\tlet valueToSet = valueOrObject;\n\n\tif ( isObject( valueOrObject ) ) {\n\t\tvalueToSet = merge( {}, get( stylesObject, nameOrPath ), valueOrObject );\n\t}\n\n\tset( stylesObject, nameOrPath, valueToSet );\n}\n\n/**\n * A CSS style property descriptor that contains tuplet of two strings:\n *\n * - first string describes property name\n * - second string describes property value\n *\n * ```ts\n * const marginDescriptor = [ 'margin', '2px 3em' ];\n * const marginTopDescriptor = [ 'margin-top', '2px' ];\n * ```\n */\nexport type PropertyDescriptor = [ name: string, value: string ];\n\n/**\n * An object describing values associated with the sides of a box, for instance margins, paddings,\n * border widths, border colors, etc.\n *\n * ```ts\n * const margin = {\n * \ttop: '1px',\n * \tright: '3px',\n * \tbottom: '3px',\n * \tleft: '7px'\n * };\n *\n * const borderColor = {\n * \ttop: 'red',\n * \tright: 'blue',\n * \tbottom: 'blue',\n * \tleft: 'red'\n * };\n * ```\n */\nexport type BoxSides = {\n\n\t/**\n\t * Top side value.\n\t */\n\ttop: undefined | string;\n\n\t/**\n\t * Left side value.\n\t */\n\tleft: undefined | string;\n\n\t/**\n\t * Right side value.\n\t */\n\tright: undefined | string;\n\n\t/**\n\t * Bottom side value.\n\t */\n\tbottom: undefined | string;\n};\n\n/**\n * Object holding styles as key-value pairs.\n */\nexport interface Styles {\n\t[ name: string ]: StyleValue;\n}\n\n/**\n * The value of style.\n */\nexport type StyleValue = string | Array<string> | Styles | BoxSides;\n\n/**\n * A normalizer method for a style property.\n *\n * @see ~StylesProcessor#setNormalizer\n */\nexport type Normalizer = ( name: string ) => { path: string; value: StyleValue };\n\n/**\n * An extractor callback for a style property or path string for single values.\n *\n * @see ~StylesProcessor#setExtractor\n */\nexport type Extractor = string | ( ( name: string, styles: Styles ) => StyleValue | undefined );\n\n/**\n * A reducer callback for a style property.\n *\n * @see ~StylesProcessor#setReducer\n */\nexport type Reducer = ( value: StyleValue ) => Array<PropertyDescriptor>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/element\n */\n\nimport Node from './node';\nimport Text from './text';\nimport TextProxy from './textproxy';\nimport { isIterable, toArray, toMap, type ArrayOrItem } from '@ckeditor/ckeditor5-utils';\nimport { default as Matcher, type MatcherPattern } from './matcher';\nimport { default as StylesMap, type StyleValue } from './stylesmap';\n\nimport type Document from './document';\nimport type Item from './item';\n\n// @if CK_DEBUG_ENGINE // const { convertMapToTags } = require( '../dev-utils/utils' );\n\n/**\n * View element.\n *\n * The editing engine does not define a fixed semantics of its elements (it is \"DTD-free\").\n * This is why the type of the {@link module:engine/view/element~Element} need to\n * be defined by the feature developer. When creating an element you should use one of the following methods:\n *\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createContainerElement `downcastWriter#createContainerElement()`}\n * in order to create a {@link module:engine/view/containerelement~ContainerElement},\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement `downcastWriter#createAttributeElement()`}\n * in order to create a {@link module:engine/view/attributeelement~AttributeElement},\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createEmptyElement `downcastWriter#createEmptyElement()`}\n * in order to create a {@link module:engine/view/emptyelement~EmptyElement}.\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `downcastWriter#createUIElement()`}\n * in order to create a {@link module:engine/view/uielement~UIElement}.\n * * {@link module:engine/view/downcastwriter~DowncastWriter#createEditableElement `downcastWriter#createEditableElement()`}\n * in order to create a {@link module:engine/view/editableelement~EditableElement}.\n *\n * Note that for view elements which are not created from the model, like elements from mutations, paste or\n * {@link module:engine/controller/datacontroller~DataController#set data.set} it is not possible to define the type of the element.\n * In such cases the {@link module:engine/view/upcastwriter~UpcastWriter#createElement `UpcastWriter#createElement()`} method\n * should be used to create generic view elements.\n */\nexport default class Element extends Node {\n\t/**\n\t * Name of the element.\n\t */\n\tpublic readonly name: string;\n\n\t/**\n\t * A list of attribute names that should be rendered in the editing pipeline even though filtering mechanisms\n\t * implemented in the {@link module:engine/view/domconverter~DomConverter} (for instance,\n\t * {@link module:engine/view/domconverter~DomConverter#shouldRenderAttribute}) would filter them out.\n\t *\n\t * These attributes can be specified as an option when the element is created by\n\t * the {@link module:engine/view/downcastwriter~DowncastWriter}. To check whether an unsafe an attribute should\n\t * be permitted, use the {@link #shouldRenderUnsafeAttribute} method.\n\t *\n\t * @internal\n\t */\n\tpublic readonly _unsafeAttributesToRender: Array<string> = [];\n\n\t/**\n\t * Map of attributes, where attributes names are keys and attributes values are values.\n\t */\n\tprivate readonly _attrs: Map<string, string>;\n\n\t/**\n\t * Array of child nodes.\n\t */\n\tprivate readonly _children: Array<Node>;\n\n\t/**\n\t * Set of classes associated with element instance.\n\t */\n\tprivate readonly _classes: Set<string>;\n\n\t/**\n\t * Normalized styles.\n\t */\n\tprivate readonly _styles: StylesMap;\n\n\t/**\n\t * Map of custom properties.\n\t * Custom properties can be added to element instance, will be cloned but not rendered into DOM.\n\t */\n\tprivate readonly _customProperties = new Map<string | symbol, unknown>();\n\n\t/**\n\t * Creates a view element.\n\t *\n\t * Attributes can be passed in various formats:\n\t *\n\t * ```ts\n\t * new Element( viewDocument, 'div', { class: 'editor', contentEditable: 'true' } ); // object\n\t * new Element( viewDocument, 'div', [ [ 'class', 'editor' ], [ 'contentEditable', 'true' ] ] ); // map-like iterator\n\t * new Element( viewDocument, 'div', mapOfAttributes ); // map\n\t * ```\n\t *\n\t * @internal\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattrs?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document );\n\n\t\tthis.name = name;\n\n\t\tthis._attrs = parseAttributes( attrs );\n\t\tthis._children = [];\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\n\t\tthis._classes = new Set();\n\n\t\tif ( this._attrs.has( 'class' ) ) {\n\t\t\t// Remove class attribute and handle it by class set.\n\t\t\tconst classString = this._attrs.get( 'class' );\n\t\t\tparseClasses( this._classes, classString! );\n\t\t\tthis._attrs.delete( 'class' );\n\t\t}\n\n\t\tthis._styles = new StylesMap( this.document.stylesProcessor );\n\n\t\tif ( this._attrs.has( 'style' ) ) {\n\t\t\t// Remove style attribute and handle it by styles map.\n\t\t\tthis._styles.setTo( this._attrs.get( 'style' )! );\n\n\t\t\tthis._attrs.delete( 'style' );\n\t\t}\n\t}\n\n\t/**\n\t * Number of element's children.\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this element, `false` otherwise.\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this._children.length === 0;\n\t}\n\n\t/**\n\t * Gets child at the given index.\n\t *\n\t * @param index Index of child.\n\t * @returns Child node.\n\t */\n\tpublic getChild( index: number ): Node | undefined {\n\t\treturn this._children[ index ];\n\t}\n\n\t/**\n\t * Gets index of the given child node. Returns `-1` if child node is not found.\n\t *\n\t * @param node Child node.\n\t * @returns Index of the child node.\n\t */\n\tpublic getChildIndex( node: Node ): number {\n\t\treturn this._children.indexOf( node );\n\t}\n\n\t/**\n\t * Gets child nodes iterator.\n\t *\n\t * @returns Child nodes iterator.\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns an iterator that contains the keys for attributes. Order of inserting attributes is not preserved.\n\t *\n\t * @returns Keys for attributes.\n\t */\n\tpublic* getAttributeKeys(): IterableIterator<string> {\n\t\tif ( this._classes.size > 0 ) {\n\t\t\tyield 'class';\n\t\t}\n\n\t\tif ( !this._styles.isEmpty ) {\n\t\t\tyield 'style';\n\t\t}\n\n\t\tyield* this._attrs.keys();\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this element's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t */\n\tpublic* getAttributes(): IterableIterator<[ string, string ]> {\n\t\tyield* this._attrs.entries();\n\n\t\tif ( this._classes.size > 0 ) {\n\t\t\tyield [ 'class', this.getAttribute( 'class' )! ];\n\t\t}\n\n\t\tif ( !this._styles.isEmpty ) {\n\t\t\tyield [ 'style', this.getAttribute( 'style' )! ];\n\t\t}\n\t}\n\n\t/**\n\t * Gets attribute by key. If attribute is not present - returns undefined.\n\t *\n\t * @param key Attribute key.\n\t * @returns Attribute value.\n\t */\n\tpublic getAttribute( key: string ): string | undefined {\n\t\tif ( key == 'class' ) {\n\t\t\tif ( this._classes.size > 0 ) {\n\t\t\t\treturn [ ...this._classes ].join( ' ' );\n\t\t\t}\n\n\t\t\treturn undefined;\n\t\t}\n\n\t\tif ( key == 'style' ) {\n\t\t\tconst inlineStyle = this._styles.toString();\n\n\t\t\treturn inlineStyle == '' ? undefined : inlineStyle;\n\t\t}\n\n\t\treturn this._attrs.get( key );\n\t}\n\n\t/**\n\t * Returns a boolean indicating whether an attribute with the specified key exists in the element.\n\t *\n\t * @param key Attribute key.\n\t * @returns `true` if attribute with the specified key exists in the element, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\tif ( key == 'class' ) {\n\t\t\treturn this._classes.size > 0;\n\t\t}\n\n\t\tif ( key == 'style' ) {\n\t\t\treturn !this._styles.isEmpty;\n\t\t}\n\n\t\treturn this._attrs.has( key );\n\t}\n\n\t/**\n\t * Checks if this element is similar to other element.\n\t * Both elements should have the same name and attributes to be considered as similar. Two similar elements\n\t * can contain different set of children nodes.\n\t */\n\tpublic isSimilar( otherElement: Item ): boolean {\n\t\tif ( !( otherElement instanceof Element ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// If exactly the same Element is provided - return true immediately.\n\t\tif ( this === otherElement ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Check element name.\n\t\tif ( this.name != otherElement.name ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check number of attributes, classes and styles.\n\t\tif ( this._attrs.size !== otherElement._attrs.size || this._classes.size !== otherElement._classes.size ||\n\t\t\tthis._styles.size !== otherElement._styles.size ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if attributes are the same.\n\t\tfor ( const [ key, value ] of this._attrs ) {\n\t\t\tif ( !otherElement._attrs.has( key ) || otherElement._attrs.get( key ) !== value ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if classes are the same.\n\t\tfor ( const className of this._classes ) {\n\t\t\tif ( !otherElement._classes.has( className ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if styles are the same.\n\t\tfor ( const property of this._styles.getStyleNames() ) {\n\t\t\tif (\n\t\t\t\t!otherElement._styles.has( property ) ||\n\t\t\t\totherElement._styles.getAsString( property ) !== this._styles.getAsString( property )\n\t\t\t) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns true if class is present.\n\t * If more then one class is provided - returns true only when all classes are present.\n\t *\n\t * ```ts\n\t * element.hasClass( 'foo' ); // Returns true if 'foo' class is present.\n\t * element.hasClass( 'foo', 'bar' ); // Returns true if 'foo' and 'bar' classes are both present.\n\t * ```\n\t */\n\tpublic hasClass( ...className: Array<string> ): boolean {\n\t\tfor ( const name of className ) {\n\t\t\tif ( !this._classes.has( name ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns iterator that contains all class names.\n\t */\n\tpublic getClassNames(): Iterable<string> {\n\t\treturn this._classes.keys();\n\t}\n\n\t/**\n\t * Returns style value for the given property mae.\n\t * If the style does not exist `undefined` is returned.\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#getAsString `StylesMap#getAsString()`} for details.\n\t *\n\t * For an element with style set to `'margin:1px'`:\n\t *\n\t * ```ts\n\t * // Enable 'margin' shorthand processing:\n\t * editor.data.addStyleProcessorRules( addMarginRules );\n\t *\n\t * const element = view.change( writer => {\n\t * \tconst element = writer.createElement();\n\t * \twriter.setStyle( 'margin', '1px' );\n\t * \twriter.setStyle( 'margin-bottom', '3em' );\n\t *\n\t * \treturn element;\n\t * } );\n\t *\n\t * element.getStyle( 'margin' ); // -> 'margin: 1px 1px 3em;'\n\t * ```\n\t */\n\tpublic getStyle( property: string ): string | undefined {\n\t\treturn this._styles.getAsString( property );\n\t}\n\n\t/**\n\t * Returns a normalized style object or single style value.\n\t *\n\t * For an element with style set to: margin:1px 2px 3em;\n\t *\n\t * ```ts\n\t * element.getNormalizedStyle( 'margin' ) );\n\t * ```\n\t *\n\t * will return:\n\t *\n\t * ```ts\n\t * {\n\t * \ttop: '1px',\n\t * \tright: '2px',\n\t * \tbottom: '3em',\n\t * \tleft: '2px'    // a normalized value from margin shorthand\n\t * }\n\t * ```\n\t *\n\t * and reading for single style value:\n\t *\n\t * ```ts\n\t * styles.getNormalizedStyle( 'margin-left' );\n\t * ```\n\t *\n\t * Will return a `2px` string.\n\t *\n\t * **Note**: This method will return normalized values only if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#getNormalized `StylesMap#getNormalized()`} for details.\n\t *\n\t * @param property Name of CSS property\n\t */\n\tpublic getNormalizedStyle( property: string ): StyleValue {\n\t\treturn this._styles.getNormalized( property );\n\t}\n\n\t/**\n\t * Returns iterator that contains all style names.\n\t *\n\t * @param expand Expand shorthand style properties and return all equivalent style representations.\n\t */\n\tpublic getStyleNames( expand?: boolean ): Iterable<string> {\n\t\treturn this._styles.getStyleNames( expand );\n\t}\n\n\t/**\n\t * Returns true if style keys are present.\n\t * If more then one style property is provided - returns true only when all properties are present.\n\t *\n\t * ```ts\n\t * element.hasStyle( 'color' ); // Returns true if 'border-top' style is present.\n\t * element.hasStyle( 'color', 'border-top' ); // Returns true if 'color' and 'border-top' styles are both present.\n\t * ```\n\t */\n\tpublic hasStyle( ...property: Array<string> ): boolean {\n\t\tfor ( const name of property ) {\n\t\t\tif ( !this._styles.has( name ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns ancestor element that match specified pattern.\n\t * Provided patterns should be compatible with {@link module:engine/view/matcher~Matcher Matcher} as it is used internally.\n\t *\n\t * @see module:engine/view/matcher~Matcher\n\t * @param patterns Patterns used to match correct ancestor. See {@link module:engine/view/matcher~Matcher}.\n\t * @returns Found element or `null` if no matching ancestor was found.\n\t */\n\tpublic findAncestor( ...patterns: Array<MatcherPattern | ( ( element: Element ) => boolean )> ): Element | null {\n\t\tconst matcher = new Matcher( ...patterns as any );\n\t\tlet parent = this.parent;\n\n\t\twhile ( parent && !parent.is( 'documentFragment' ) ) {\n\t\t\tif ( matcher.match( parent ) ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the custom property value for the given key.\n\t */\n\tpublic getCustomProperty( key: string | symbol ): unknown {\n\t\treturn this._customProperties.get( key );\n\t}\n\n\t/**\n\t * Returns an iterator which iterates over this element's custom properties.\n\t * Iterator provides `[ key, value ]` pairs for each stored property.\n\t */\n\tpublic* getCustomProperties(): IterableIterator<[ string | symbol, unknown ]> {\n\t\tyield* this._customProperties.entries();\n\t}\n\n\t/**\n\t * Returns identity string based on element's name, styles, classes and other attributes.\n\t * Two elements that {@link #isSimilar are similar} will have same identity string.\n\t * It has the following format:\n\t *\n\t * ```ts\n\t * 'name class=\"class1,class2\" style=\"style1:value1;style2:value2\" attr1=\"val1\" attr2=\"val2\"'\n\t * ```\n \t *\n\t * For example:\n\t *\n\t * ```ts\n\t * const element = writer.createContainerElement( 'foo', {\n\t * \tbanana: '10',\n\t * \tapple: '20',\n\t * \tstyle: 'color: red; border-color: white;',\n\t * \tclass: 'baz'\n\t * } );\n\t *\n\t * // returns 'foo class=\"baz\" style=\"border-color:white;color:red\" apple=\"20\" banana=\"10\"'\n\t * element.getIdentity();\n\t * ```\n\t *\n\t * **Note**: Classes, styles and other attributes are sorted alphabetically.\n\t */\n\tpublic getIdentity(): string {\n\t\tconst classes = Array.from( this._classes ).sort().join( ',' );\n\t\tconst styles = this._styles.toString();\n\t\tconst attributes = Array.from( this._attrs ).map( i => `${ i[ 0 ] }=\"${ i[ 1 ] }\"` ).sort().join( ' ' );\n\n\t\treturn this.name +\n\t\t\t( classes == '' ? '' : ` class=\"${ classes }\"` ) +\n\t\t\t( !styles ? '' : ` style=\"${ styles }\"` ) +\n\t\t\t( attributes == '' ? '' : ` ${ attributes }` );\n\t}\n\n\t/**\n\t * Decides whether an unsafe attribute is whitelisted and should be rendered in the editing pipeline even though filtering mechanisms\n\t * like {@link module:engine/view/domconverter~DomConverter#shouldRenderAttribute} say it should not.\n\t *\n\t * Unsafe attribute names can be specified when creating an element via {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t *\n\t * @param attributeName The name of the attribute to be checked.\n\t */\n\tpublic shouldRenderUnsafeAttribute( attributeName: string ): boolean {\n\t\treturn this._unsafeAttributesToRender.includes( attributeName );\n\t}\n\n\t/**\n\t * Clones provided element.\n\t *\n\t * @internal\n\t * @param deep If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any children.\n\t * @returns Clone of this element.\n\t */\n\tpublic _clone( deep = false ): this {\n\t\tconst childrenClone: Array<Node> = [];\n\n\t\tif ( deep ) {\n\t\t\tfor ( const child of this.getChildren() ) {\n\t\t\t\tchildrenClone.push( child._clone( deep ) );\n\t\t\t}\n\t\t}\n\n\t\t// ContainerElement and AttributeElement should be also cloned properly.\n\t\tconst cloned = new ( this.constructor as any )( this.document, this.name, this._attrs, childrenClone );\n\n\t\t// Classes and styles are cloned separately - this solution is faster than adding them back to attributes and\n\t\t// parse once again in constructor.\n\t\tcloned._classes = new Set( this._classes );\n\t\tcloned._styles.set( this._styles.getNormalized() );\n\n\t\t// Clone custom properties.\n\t\tcloned._customProperties = new Map( this._customProperties );\n\n\t\t// Clone filler offset method.\n\t\t// We can't define this method in a prototype because it's behavior which\n\t\t// is changed by e.g. toWidget() function from ckeditor5-widget. Perhaps this should be one of custom props.\n\t\tcloned.getFillerOffset = this.getFillerOffset;\n\n\t\t// Clone unsafe attributes list.\n\t\tcloned._unsafeAttributesToRender = this._unsafeAttributesToRender;\n\n\t\treturn cloned;\n\t}\n\n\t/**\n\t * {@link module:engine/view/element~Element#_insertChild Insert} a child node or a list of child nodes at the end of this node\n\t * and sets the parent of these nodes to this element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#insert\n\t * @internal\n\t * @param items Items to be inserted.\n\t * @fires change\n\t * @returns Number of appended nodes.\n\t */\n\tpublic _appendChild( items: Item | string | Iterable<Item | string> ): number {\n\t\treturn this._insertChild( this.childCount, items );\n\t}\n\n\t/**\n\t * Inserts a child node or a list of child nodes on the given index and sets the parent of these nodes to\n\t * this element.\n\t *\n\t * @internal\n\t * @see module:engine/view/downcastwriter~DowncastWriter#insert\n\t * @param index Position where nodes should be inserted.\n\t * @param items Items to be inserted.\n\t * @fires change\n\t * @returns Number of inserted nodes.\n\t */\n\tpublic _insertChild( index: number, items: Item | string | Iterable<Item | string> ): number {\n\t\tthis._fireChange( 'children', this );\n\t\tlet count = 0;\n\n\t\tconst nodes = normalize( this.document, items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\t( node as any ).parent = this;\n\t\t\t( node as any ).document = this.document;\n\n\t\t\tthis._children.splice( index, 0, node );\n\t\t\tindex++;\n\t\t\tcount++;\n\t\t}\n\n\t\treturn count;\n\t}\n\n\t/**\n\t * Removes number of child nodes starting at the given index and set the parent of these nodes to `null`.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#remove\n\t * @internal\n\t * @param index Number of the first node to remove.\n\t * @param howMany Number of nodes to remove.\n\t * @fires change\n\t * @returns The array of removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tthis._fireChange( 'children', this );\n\n\t\tfor ( let i = index; i < index + howMany; i++ ) {\n\t\t\t( this._children[ i ] as any ).parent = null;\n\t\t}\n\n\t\treturn this._children.splice( index, howMany );\n\t}\n\n\t/**\n\t * Adds or overwrite attribute with a specified key and value.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setAttribute\n\t * @internal\n\t * @param key Attribute key.\n\t * @param value Attribute value.\n\t * @fires change\n\t */\n\tpublic _setAttribute( key: string, value: unknown ): void {\n\t\tconst stringValue = String( value );\n\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tif ( key == 'class' ) {\n\t\t\tparseClasses( this._classes, stringValue );\n\t\t} else if ( key == 'style' ) {\n\t\t\tthis._styles.setTo( stringValue );\n\t\t} else {\n\t\t\tthis._attrs.set( key, stringValue );\n\t\t}\n\t}\n\n\t/**\n\t * Removes attribute from the element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeAttribute\n\t * @internal\n\t * @param key Attribute key.\n\t * @returns Returns true if an attribute existed and has been removed.\n\t * @fires change\n\t */\n\tpublic _removeAttribute( key: string ): boolean {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\t// Remove class attribute.\n\t\tif ( key == 'class' ) {\n\t\t\tif ( this._classes.size > 0 ) {\n\t\t\t\tthis._classes.clear();\n\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\treturn false;\n\t\t}\n\n\t\t// Remove style attribute.\n\t\tif ( key == 'style' ) {\n\t\t\tif ( !this._styles.isEmpty ) {\n\t\t\t\tthis._styles.clear();\n\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\treturn false;\n\t\t}\n\n\t\t// Remove other attributes.\n\t\treturn this._attrs.delete( key );\n\t}\n\n\t/**\n\t * Adds specified class.\n\t *\n\t * ```ts\n\t * element._addClass( 'foo' ); // Adds 'foo' class.\n\t * element._addClass( [ 'foo', 'bar' ] ); // Adds 'foo' and 'bar' classes.\n\t * ```\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#addClass\n\t * @internal\n\t * @fires change\n\t */\n\tpublic _addClass( className: ArrayOrItem<string> ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tfor ( const name of toArray( className ) ) {\n\t\t\tthis._classes.add( name );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified class.\n\t *\n\t * ```ts\n\t * element._removeClass( 'foo' );  // Removes 'foo' class.\n\t * element._removeClass( [ 'foo', 'bar' ] ); // Removes both 'foo' and 'bar' classes.\n\t * ```\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeClass\n\t * @internal\n\t * @fires change\n\t */\n\tpublic _removeClass( className: string | Array<string> ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tfor ( const name of toArray( className ) ) {\n\t\t\tthis._classes.delete( name );\n\t\t}\n\t}\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t * ```ts\n\t * element._setStyle( 'color', 'red' );\n\t * ```\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setStyle\n\t * @label KEY_VALUE\n\t * @internal\n\t * @param property Property name.\n\t * @param value Value to set.\n\t * @fires change\n\t */\n\tpublic _setStyle( property: string, value: string ): void;\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t * ```ts\n\t * element._setStyle( {\n\t * \tcolor: 'red',\n\t * \tposition: 'fixed'\n\t * } );\n\t * ```\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setStyle\n\t * @label OBJECT\n\t * @internal\n\t * @param properties Object with key - value pairs.\n\t * @fires change\n\t */\n\tpublic _setStyle( properties: Record<string, string> ): void;\n\n\tpublic _setStyle( property: string | Record<string, string>, value?: string ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tif ( typeof property != 'string' ) {\n\t\t\tthis._styles.set( property );\n\t\t} else {\n\t\t\tthis._styles.set( property, value! );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified style.\n\t *\n\t * ```ts\n\t * element._removeStyle( 'color' );  // Removes 'color' style.\n\t * element._removeStyle( [ 'color', 'border-top' ] ); // Removes both 'color' and 'border-top' styles.\n\t * ```\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#remove `StylesMap#remove()`} for details.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeStyle\n\t * @internal\n\t * @fires change\n\t */\n\tpublic _removeStyle( property: ArrayOrItem<string> ): void {\n\t\tthis._fireChange( 'attributes', this );\n\n\t\tfor ( const name of toArray( property ) ) {\n\t\t\tthis._styles.remove( name );\n\t\t}\n\t}\n\n\t/**\n\t * Sets a custom property. Unlike attributes, custom properties are not rendered to the DOM,\n\t * so they can be used to add special data to elements.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setCustomProperty\n\t * @internal\n\t */\n\tpublic _setCustomProperty( key: string | symbol, value: unknown ): void {\n\t\tthis._customProperties.set( key, value );\n\t}\n\n\t/**\n\t * Removes the custom property stored under the given key.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeCustomProperty\n\t * @internal\n\t * @returns Returns true if property was removed.\n\t */\n\tpublic _removeCustomProperty( key: string | symbol ): boolean {\n\t\treturn this._customProperties.delete( key );\n\t}\n\n\t/**\n\t * Returns block {@link module:engine/view/filler filler} offset or `null` if block filler is not needed.\n\t */\n\tpublic getFillerOffset?(): number | null;\n\n\t// @if CK_DEBUG_ENGINE // public printTree( level = 0 ): string {\n\t// @if CK_DEBUG_ENGINE // \tlet string = '';\n\n\t// @if CK_DEBUG_ENGINE // \tstring += '\\t'.repeat( level ) + `<${ this.name }${ convertMapToTags( this.getAttributes() ) }>`;\n\n\t// @if CK_DEBUG_ENGINE // \tfor ( const child of this.getChildren() as any ) {\n\t// @if CK_DEBUG_ENGINE // \t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += '\\n' + '\\t'.repeat( level + 1 ) + child.data;\n\t// @if CK_DEBUG_ENGINE // \t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += '\\n' + child.printTree( level + 1 );\n\t// @if CK_DEBUG_ENGINE // \t\t}\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tif ( this.childCount ) {\n\t// @if CK_DEBUG_ENGINE // \t\tstring += '\\n' + '\\t'.repeat( level );\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tstring += `</${ this.name }>`;\n\n\t// @if CK_DEBUG_ENGINE // \treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logTree(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'element' || type === 'view:element' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && ( type === 'element' || type === 'view:element' );\n\t}\n};\n\n/**\n * Collection of attributes.\n */\nexport type ElementAttributes = Record<string, unknown> | Iterable<[ string, unknown ]> | null;\n\n/**\n * Parses attributes provided to the element constructor before they are applied to an element. If attributes are passed\n * as an object (instead of `Iterable`), the object is transformed to the map. Attributes with `null` value are removed.\n * Attributes with non-`String` value are converted to `String`.\n *\n * @param attrs Attributes to parse.\n * @returns Parsed attributes.\n */\nfunction parseAttributes( attrs?: ElementAttributes ) {\n\tconst attrsMap = toMap( attrs );\n\n\tfor ( const [ key, value ] of attrsMap ) {\n\t\tif ( value === null ) {\n\t\t\tattrsMap.delete( key );\n\t\t} else if ( typeof value != 'string' ) {\n\t\t\tattrsMap.set( key, String( value ) );\n\t\t}\n\t}\n\n\treturn attrsMap as Map<string, string>;\n}\n\n/**\n * Parses class attribute and puts all classes into classes set.\n * Classes set s cleared before insertion.\n *\n * @param classesSet Set to insert parsed classes.\n * @param classesString String with classes to parse.\n */\nfunction parseClasses( classesSet: Set<string>, classesString: string ) {\n\tconst classArray = classesString.split( /\\s+/ );\n\tclassesSet.clear();\n\tclassArray.forEach( name => classesSet.add( name ) );\n}\n\n/**\n * Converts strings to Text and non-iterables to arrays.\n */\nfunction normalize( document: Document, nodes: string | Item | Iterable<string | Item> ): Array<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( document, nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( document, node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( document, node.data );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/containerelement\n */\n\nimport Element, { type ElementAttributes } from './element';\nimport type Document from './document';\nimport type Node from './node';\n\n/**\n * Containers are elements which define document structure. They define boundaries for\n * {@link module:engine/view/attributeelement~AttributeElement attributes}. They are mostly used for block elements like `<p>` or `<div>`.\n *\n * Editing engine does not define a fixed HTML DTD. This is why a feature developer needs to choose between various\n * types (container element, {@link module:engine/view/attributeelement~AttributeElement attribute element},\n * {@link module:engine/view/emptyelement~EmptyElement empty element}, etc) when developing a feature.\n *\n * The container element should be your default choice when writing a converter, unless:\n *\n * * this element represents a model text attribute (then use {@link module:engine/view/attributeelement~AttributeElement}),\n * * this is an empty element like `<img>` (then use {@link module:engine/view/emptyelement~EmptyElement}),\n * * this is a root element,\n * * this is a nested editable element (then use  {@link module:engine/view/editableelement~EditableElement}).\n *\n * To create a new container element instance use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createContainerElement `DowncastWriter#createContainerElement()`}\n * method.\n */\nexport default class ContainerElement extends Element {\n\t/**\n\t * Creates a container element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createContainerElement\n\t * @see module:engine/view/element~Element\n\t * @internal\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattrs?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document, name, attrs, children );\n\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nContainerElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'containerElement' || type === 'view:containerElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n/**\n * Returns block {@link module:engine/view/filler filler} offset or `null` if block filler is not needed.\n *\n * @returns Block filler offset or `null` if block filler is not needed.\n */\nexport function getFillerOffset( this: ContainerElement ): number | null {\n\tconst children = [ ...this.getChildren() ];\n\tconst lastChild = children[ this.childCount - 1 ];\n\n\t// Block filler is required after a `<br>` if it's the last element in its container. See #1422.\n\tif ( lastChild && lastChild.is( 'element', 'br' ) ) {\n\t\treturn this.childCount;\n\t}\n\n\tfor ( const child of children ) {\n\t\t// If there's any non-UI element – don't render the bogus.\n\t\tif ( !child.is( 'uiElement' ) ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t// If there are only UI elements – render the bogus at the end of the element.\n\treturn this.childCount;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/editableelement\n */\n\nimport ContainerElement from './containerelement';\nimport { ObservableMixin } from '@ckeditor/ckeditor5-utils';\nimport type { ViewSelectionChangeEvent } from './selection';\nimport type { ElementAttributes } from './element';\nimport type Document from './document';\nimport type Node from './node';\n\n/**\n * Editable element which can be a {@link module:engine/view/rooteditableelement~RootEditableElement root}\n * or nested editable area in the editor.\n *\n * Editable is automatically read-only when its {@link module:engine/view/document~Document Document} is read-only.\n *\n * The constructor of this class shouldn't be used directly. To create new `EditableElement` use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createEditableElement `downcastWriter#createEditableElement()`} method.\n */\nexport default class EditableElement extends ObservableMixin( ContainerElement ) {\n\t/**\n\t * Whether the editable is in read-write or read-only mode.\n\t *\n\t * @observable\n\t */\n\tdeclare public isReadOnly: boolean;\n\n\t/**\n\t * Whether the editable is focused.\n\t *\n\t * This property updates when {@link module:engine/view/document~Document#isFocused document.isFocused} or view\n\t * selection is changed.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * Creates an editable element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createEditableElement\n\t * @internal\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document, name, attributes, children );\n\n\t\tthis.set( 'isReadOnly', false );\n\t\tthis.set( 'isFocused', false );\n\n\t\tthis.bind( 'isReadOnly' ).to( document );\n\n\t\tthis.bind( 'isFocused' ).to(\n\t\t\tdocument,\n\t\t\t'isFocused',\n\t\t\tisFocused => isFocused && document.selection.editableElement == this\n\t\t);\n\n\t\t// Update focus state based on selection changes.\n\t\tthis.listenTo<ViewSelectionChangeEvent>( document.selection, 'change', () => {\n\t\t\tthis.isFocused = document.isFocused && document.selection.editableElement == this;\n\t\t} );\n\t}\n\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nEditableElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'editableElement' || type === 'view:editableElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'editableElement' || type === 'view:editableElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/rooteditableelement\n */\n\nimport EditableElement from './editableelement';\n\nimport type Document from './document';\n\nconst rootNameSymbol = Symbol( 'rootName' );\n\n/**\n * Class representing a single root in the data view. A root can be either {@link ~RootEditableElement#isReadOnly editable or read-only},\n * but in both cases it is called \"an editable\". Roots can contain other {@link module:engine/view/editableelement~EditableElement\n * editable elements} making them \"nested editables\".\n */\nexport default class RootEditableElement extends EditableElement {\n\t/**\n\t * Creates root editable element.\n\t *\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string\n\t) {\n\t\tsuper( document, name );\n\n\t\tthis.rootName = 'main';\n\t}\n\n\t/**\n\t * Name of this root inside {@link module:engine/view/document~Document} that is an owner of this root. If no\n\t * other name is set, `main` name is used.\n\t *\n\t * @readonly\n\t */\n\tpublic get rootName(): string {\n\t\treturn this.getCustomProperty( rootNameSymbol ) as string;\n\t}\n\n\tpublic set rootName( rootName: string ) {\n\t\tthis._setCustomProperty( rootNameSymbol, rootName );\n\t}\n\n\t/**\n\t * Overrides old element name and sets new one.\n\t * This is needed because view roots are created before they are attached to the DOM.\n\t * The name of the root element is temporary at this stage. It has to be changed when the\n\t * view root element is attached to the DOM element.\n\t *\n\t * @internal\n\t * @param name The new name of element.\n\t */\n\tpublic set _name( name: string ) {\n\t\t( this as any ).name = name;\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nRootEditableElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'rootElement' || type === 'view:rootElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'editableElement' || type === 'view:editableElement' ||\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'rootElement' || type === 'view:rootElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'editableElement' || type === 'view:editableElement' ||\n\t\t\ttype === 'containerElement' || type === 'view:containerElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/treewalker\n */\n\nimport Element from './element';\nimport Text from './text';\nimport TextProxy from './textproxy';\nimport Position from './position';\nimport type Item from './item';\nimport type DocumentFragment from './documentfragment';\nimport type Range from './range';\nimport type Node from './node';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Position iterator class. It allows to iterate forward and backward over the document.\n */\nexport default class TreeWalker implements IterableIterator<TreeWalkerValue> {\n\t/**\n\t * Walking direction. Defaults `'forward'`.\n\t */\n\tpublic readonly direction: TreeWalkerDirection;\n\n\t/**\n\t * Iterator boundaries.\n\t *\n\t * When the iterator is walking `'forward'` on the end of boundary or is walking `'backward'`\n\t * on the start of boundary, then `{ done: true }` is returned.\n\t *\n\t * If boundaries are not defined they are set before first and after last child of the root node.\n\t */\n\tpublic readonly boundaries: Range | null;\n\n\t/**\n\t * Flag indicating whether all characters from {@link module:engine/view/text~Text} should be returned as one\n\t * {@link module:engine/view/text~Text} or one by one as {@link module:engine/view/textproxy~TextProxy}.\n\t */\n\tpublic readonly singleCharacters: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should enter elements or not. If the iterator is shallow child nodes of any\n\t * iterated node will not be returned along with `elementEnd` tag.\n\t */\n\tpublic readonly shallow: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should ignore `elementEnd` tags. If set to `true`, walker will not\n\t * return a parent node of the start position. Each {@link module:engine/view/element~Element} will be returned once.\n\t * When set to `false` each element might be returned twice: for `'elementStart'` and `'elementEnd'`.\n\t */\n\tpublic readonly ignoreElementEnd: boolean;\n\n\t/**\n\t * Iterator position. If start position is not defined then position depends on {@link #direction}. If direction is\n\t * `'forward'` position starts form the beginning, when direction is `'backward'` position starts from the end.\n\t */\n\tprivate _position: Position;\n\n\t/**\n\t * Start boundary parent.\n\t */\n\tprivate readonly _boundaryStartParent: Node | DocumentFragment | null;\n\n\t/**\n\t * End boundary parent.\n\t */\n\tprivate readonly _boundaryEndParent: Node | DocumentFragment | null;\n\n\t/**\n\t * Creates a range iterator. All parameters are optional, but you have to specify either `boundaries` or `startPosition`.\n\t *\n\t * @param options Object with configuration.\n\t */\n\tconstructor( options: TreeWalkerOptions = {} ) {\n\t\tif ( !options.boundaries && !options.startPosition ) {\n\t\t\t/**\n\t\t\t * Neither boundaries nor starting position have been defined.\n\t\t\t *\n\t\t\t * @error view-tree-walker-no-start-position\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-tree-walker-no-start-position',\n\t\t\t\tnull\n\t\t\t);\n\t\t}\n\n\t\tif ( options.direction && options.direction != 'forward' && options.direction != 'backward' ) {\n\t\t\t/**\n\t\t\t * Only `backward` and `forward` direction allowed.\n\t\t\t *\n\t\t\t * @error view-tree-walker-unknown-direction\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-tree-walker-unknown-direction', options.startPosition, { direction: options.direction } );\n\t\t}\n\n\t\tthis.boundaries = options.boundaries || null;\n\n\t\tif ( options.startPosition ) {\n\t\t\tthis._position = Position._createAt( options.startPosition );\n\t\t} else {\n\t\t\tthis._position = Position._createAt( options.boundaries![ options.direction == 'backward' ? 'end' : 'start' ] );\n\t\t}\n\n\t\tthis.direction = options.direction || 'forward';\n\t\tthis.singleCharacters = !!options.singleCharacters;\n\t\tthis.shallow = !!options.shallow;\n\t\tthis.ignoreElementEnd = !!options.ignoreElementEnd;\n\n\t\tthis._boundaryStartParent = this.boundaries ? this.boundaries.start.parent : null;\n\t\tthis._boundaryEndParent = this.boundaries ? this.boundaries.end.parent : null;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Iterator position. If start position is not defined then position depends on {@link #direction}. If direction is\n\t * `'forward'` position starts form the beginning, when direction is `'backward'` position starts from the end.\n\t */\n\tpublic get position(): Position {\n\t\treturn this._position;\n\t}\n\n\t/**\n\t * Moves {@link #position} in the {@link #direction} skipping values as long as the callback function returns `true`.\n\t *\n\t * For example:\n\t *\n\t * ```ts\n\t * walker.skip( value => value.type == 'text' ); // <p>{}foo</p> -> <p>foo[]</p>\n\t * walker.skip( value => true ); // Move the position to the end: <p>{}foo</p> -> <p>foo</p>[]\n\t * walker.skip( value => false ); // Do not move the position.\n\t * ```\n\t *\n\t * @param skip Callback function. Gets {@link module:engine/view/treewalker~TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t */\n\tpublic skip( skip: ( value: TreeWalkerValue ) => boolean ): void {\n\t\tlet nextResult: IteratorResult<TreeWalkerValue>;\n\t\tlet prevPosition: Position;\n\n\t\tdo {\n\t\t\tprevPosition = this.position;\n\t\t\tnextResult = this.next();\n\t\t} while ( !nextResult.done && skip( nextResult.value ) );\n\n\t\tif ( !nextResult.done ) {\n\t\t\tthis._position = prevPosition;\n\t\t}\n\t}\n\n\t/**\n\t * Gets the next tree walker's value.\n\t *\n\t * @returns Object implementing iterator interface, returning\n\t * information about taken step.\n\t */\n\tpublic next(): IteratorResult<TreeWalkerValue, undefined> {\n\t\tif ( this.direction == 'forward' ) {\n\t\t\treturn this._next();\n\t\t} else {\n\t\t\treturn this._previous();\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step forward in view. Moves the {@link #position} to the next position and returns the encountered value.\n\t */\n\tprivate _next(): IteratorResult<TreeWalkerValue, undefined> {\n\t\tlet position = this.position.clone();\n\t\tconst previousPosition = this.position;\n\t\tconst parent = position.parent;\n\n\t\t// We are at the end of the root.\n\t\tif ( parent.parent === null && position.offset === ( parent as any ).childCount ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent === this._boundaryEndParent && position.offset == this.boundaries!.end.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just after current position.\n\t\tlet node;\n\n\t\t// Text is a specific parent because it contains string instead of child nodes.\n\t\tif ( parent instanceof Text ) {\n\t\t\tif ( position.isAtEnd ) {\n\t\t\t\t// Prevent returning \"elementEnd\" for Text node. Skip that value and return the next walker step.\n\t\t\t\tthis._position = Position._createAfter( parent );\n\n\t\t\t\treturn this._next();\n\t\t\t}\n\n\t\t\tnode = parent.data[ position.offset ];\n\t\t} else {\n\t\t\tnode = ( parent as Element | DocumentFragment ).getChild( position.offset );\n\t\t}\n\n\t\tif ( node instanceof Element ) {\n\t\t\tif ( !this.shallow ) {\n\t\t\t\tposition = new Position( node, 0 );\n\t\t\t} else {\n\t\t\t\tposition.offset++;\n\t\t\t}\n\n\t\t\tthis._position = position;\n\n\t\t\treturn this._formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t} else if ( node instanceof Text ) {\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tposition = new Position( node, 0 );\n\t\t\t\tthis._position = position;\n\n\t\t\t\treturn this._next();\n\t\t\t} else {\n\t\t\t\tlet charactersCount = node.data.length;\n\t\t\t\tlet item;\n\n\t\t\t\t// If text stick out of walker range, we need to cut it and wrap in TextProxy.\n\t\t\t\tif ( node == this._boundaryEndParent ) {\n\t\t\t\t\tcharactersCount = this.boundaries!.end.offset;\n\t\t\t\t\titem = new TextProxy( node, 0, charactersCount );\n\t\t\t\t\tposition = Position._createAfter( item );\n\t\t\t\t} else {\n\t\t\t\t\titem = new TextProxy( node, 0, node.data.length );\n\t\t\t\t\t// If not just keep moving forward.\n\t\t\t\t\tposition.offset++;\n\t\t\t\t}\n\n\t\t\t\tthis._position = position;\n\n\t\t\t\treturn this._formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t\t}\n\t\t} else if ( typeof node == 'string' ) {\n\t\t\tlet textLength;\n\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\ttextLength = 1;\n\t\t\t} else {\n\t\t\t\t// Check if text stick out of walker range.\n\t\t\t\tconst endOffset = parent === this._boundaryEndParent ? this.boundaries!.end.offset : ( parent as Text ).data.length;\n\n\t\t\t\ttextLength = endOffset - position.offset;\n\t\t\t}\n\n\t\t\tconst textProxy = new TextProxy( parent as Text, position.offset, textLength );\n\n\t\t\tposition.offset += textLength;\n\t\t\tthis._position = position;\n\n\t\t\treturn this._formatReturnValue( 'text', textProxy, previousPosition, position, textLength );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the end of current `parent`.\n\t\t\tposition = Position._createAfter( parent as any );\n\t\t\tthis._position = position;\n\n\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\treturn this._next();\n\t\t\t} else {\n\t\t\t\treturn this._formatReturnValue( 'elementEnd', parent as any, previousPosition, position );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step backward in view. Moves the {@link #position} to the previous position and returns the encountered value.\n\t */\n\tprivate _previous(): IteratorResult<TreeWalkerValue, undefined> {\n\t\tlet position = this.position.clone();\n\t\tconst previousPosition = this.position;\n\t\tconst parent = position.parent;\n\n\t\t// We are at the beginning of the root.\n\t\tif ( parent.parent === null && position.offset === 0 ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent == this._boundaryStartParent && position.offset == this.boundaries!.start.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just before current position.\n\t\tlet node;\n\n\t\t// Text {@link module:engine/view/text~Text} element is a specific parent because contains string instead of child nodes.\n\t\tif ( parent instanceof Text ) {\n\t\t\tif ( position.isAtStart ) {\n\t\t\t\t// Prevent returning \"elementStart\" for Text node. Skip that value and return the next walker step.\n\t\t\t\tthis._position = Position._createBefore( parent );\n\n\t\t\t\treturn this._previous();\n\t\t\t}\n\n\t\t\tnode = parent.data[ position.offset - 1 ];\n\t\t} else {\n\t\t\tnode = ( parent as Element | DocumentFragment ).getChild( position.offset - 1 );\n\t\t}\n\n\t\tif ( node instanceof Element ) {\n\t\t\tif ( !this.shallow ) {\n\t\t\t\tposition = new Position( node, node.childCount );\n\t\t\t\tthis._position = position;\n\n\t\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\t\treturn this._previous();\n\t\t\t\t} else {\n\t\t\t\t\treturn this._formatReturnValue( 'elementEnd', node, previousPosition, position );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tposition.offset--;\n\t\t\t\tthis._position = position;\n\n\t\t\t\treturn this._formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t\t}\n\t\t} else if ( node instanceof Text ) {\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tposition = new Position( node, node.data.length );\n\t\t\t\tthis._position = position;\n\n\t\t\t\treturn this._previous();\n\t\t\t} else {\n\t\t\t\tlet charactersCount = node.data.length;\n\t\t\t\tlet item;\n\n\t\t\t\t// If text stick out of walker range, we need to cut it and wrap in TextProxy.\n\t\t\t\tif ( node == this._boundaryStartParent ) {\n\t\t\t\t\tconst offset = this.boundaries!.start.offset;\n\n\t\t\t\t\titem = new TextProxy( node, offset, node.data.length - offset );\n\t\t\t\t\tcharactersCount = item.data.length;\n\t\t\t\t\tposition = Position._createBefore( item );\n\t\t\t\t} else {\n\t\t\t\t\titem = new TextProxy( node, 0, node.data.length );\n\t\t\t\t\t// If not just keep moving backward.\n\t\t\t\t\tposition.offset--;\n\t\t\t\t}\n\n\t\t\t\tthis._position = position;\n\n\t\t\t\treturn this._formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t\t}\n\t\t} else if ( typeof node == 'string' ) {\n\t\t\tlet textLength;\n\n\t\t\tif ( !this.singleCharacters ) {\n\t\t\t\t// Check if text stick out of walker range.\n\t\t\t\tconst startOffset = parent === this._boundaryStartParent ? this.boundaries!.start.offset : 0;\n\n\t\t\t\ttextLength = position.offset - startOffset;\n\t\t\t} else {\n\t\t\t\ttextLength = 1;\n\t\t\t}\n\n\t\t\tposition.offset -= textLength;\n\n\t\t\tconst textProxy = new TextProxy( parent as Text, position.offset, textLength );\n\n\t\t\tthis._position = position;\n\n\t\t\treturn this._formatReturnValue( 'text', textProxy, previousPosition, position, textLength );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the beginning of current `parent`.\n\t\t\tposition = Position._createBefore( parent as any );\n\t\t\tthis._position = position;\n\n\t\t\treturn this._formatReturnValue( 'elementStart', parent as Element, previousPosition, position, 1 );\n\t\t}\n\t}\n\n\t/**\n\t * Format returned data and adjust `previousPosition` and `nextPosition` if reach the bound of the {@link module:engine/view/text~Text}.\n\t *\n\t * @param type Type of step.\n\t * @param item Item between old and new position.\n\t * @param previousPosition Previous position of iterator.\n\t * @param nextPosition Next position of iterator.\n\t * @param length Length of the item.\n\t */\n\tprivate _formatReturnValue(\n\t\ttype: TreeWalkerValueType,\n\t\titem: Item,\n\t\tpreviousPosition: Position,\n\t\tnextPosition: Position,\n\t\tlength?: number\n\t): IteratorYieldResult<TreeWalkerValue> {\n\t\t// Text is a specific parent, because contains string instead of children.\n\t\t// Walker doesn't enter to the Text except situations when walker is iterating over every single character,\n\t\t// or the bound starts/ends inside the Text. So when the position is at the beginning or at the end of the Text\n\t\t// we move it just before or just after Text.\n\t\tif ( item instanceof TextProxy ) {\n\t\t\t// Position is at the end of Text.\n\t\t\tif ( item.offsetInText + item.data.length == item.textNode.data.length ) {\n\t\t\t\tif ( this.direction == 'forward' && !( this.boundaries && this.boundaries.end.isEqual( this.position ) ) ) {\n\t\t\t\t\tnextPosition = Position._createAfter( item.textNode );\n\t\t\t\t\t// When we change nextPosition of returned value we need also update walker current position.\n\t\t\t\t\tthis._position = nextPosition;\n\t\t\t\t} else {\n\t\t\t\t\tpreviousPosition = Position._createAfter( item.textNode );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Position is at the begining ot the text.\n\t\t\tif ( item.offsetInText === 0 ) {\n\t\t\t\tif ( this.direction == 'backward' && !( this.boundaries && this.boundaries.start.isEqual( this.position ) ) ) {\n\t\t\t\t\tnextPosition = Position._createBefore( item.textNode );\n\t\t\t\t\t// When we change nextPosition of returned value we need also update walker current position.\n\t\t\t\t\tthis._position = nextPosition;\n\t\t\t\t} else {\n\t\t\t\t\tpreviousPosition = Position._createBefore( item.textNode );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn {\n\t\t\tdone: false,\n\t\t\tvalue: {\n\t\t\t\ttype,\n\t\t\t\titem,\n\t\t\t\tpreviousPosition,\n\t\t\t\tnextPosition,\n\t\t\t\tlength\n\t\t\t}\n\t\t};\n\t}\n}\n\n/**\n * Type of the step made by {@link module:engine/view/treewalker~TreeWalker}.\n * Possible values: `'elementStart'` if walker is at the beginning of a node, `'elementEnd'` if walker is at the end\n * of node, or `'text'` if walker traversed over single and multiple characters.\n * For {@link module:engine/view/text~Text} `elementStart` and `elementEnd` is not returned.\n */\nexport type TreeWalkerValueType = 'elementStart' | 'elementEnd' | 'text';\n\n/**\n * Object returned by {@link module:engine/view/treewalker~TreeWalker} when traversing tree view.\n */\nexport interface TreeWalkerValue {\n\n\t/**\n\t * Type of the step made by {@link module:engine/view/treewalker~TreeWalker}.\n\t */\n\ttype: TreeWalkerValueType;\n\n\t/**\n\t * Item between the old and the new positions of the tree walker.\n\t */\n\titem: Item;\n\n\t/**\n\t * Previous position of the iterator.\n\t * * Forward iteration: For `'elementEnd'` it is the last position inside the element. For all other types it is the\n\t * position before the item.\n\t * * Backward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n\t * the position after item.\n\t * * If the position is at the beginning or at the end of the {@link module:engine/view/text~Text} it is always moved from the\n\t * inside of the text to its parent just before or just after that text.\n\t */\n\tpreviousPosition: Position;\n\n\t/**\n\t * Next position of the iterator.\n\t * * Forward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n\t * the position after the item.\n\t * * Backward iteration: For `'elementEnd'` it is last position inside element. For all other types it is the position\n\t * before the item.\n\t * * If the position is at the beginning or at the end of the {@link module:engine/view/text~Text} it is always moved from the\n\t * inside of the text to its parent just before or just after that text.\n\t */\n\tnextPosition: Position;\n\n\t/**\n\t * Length of the item. For `'elementStart'` it is `1`. For `'text'` it is\n\t * the length of that text. For `'elementEnd'` it is `undefined`.\n\t */\n\tlength?: number;\n}\n\n/**\n * Tree walking direction.\n */\nexport type TreeWalkerDirection = 'forward' | 'backward';\n\n/**\n * The configuration of {@link ~TreeWalker}.\n */\nexport interface TreeWalkerOptions {\n\n\t/**\n\t * Walking direction.\n\t *\n\t * @default 'forward'\n\t */\n\tdirection?: TreeWalkerDirection;\n\n\t/**\n\t * Range to define boundaries of the iterator.\n\t */\n\tboundaries?: Range | null;\n\n\t/**\n\t * Starting position.\n\t */\n\tstartPosition?: Position;\n\n\t/**\n\t * Flag indicating whether all characters from\n\t * {@link module:engine/view/text~Text} should be returned as one {@link module:engine/view/text~Text} (`false`) or one by one as\n\t * {@link module:engine/view/textproxy~TextProxy} (`true`).\n\t */\n\tsingleCharacters?: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should enter elements or not. If the\n\t * iterator is shallow child nodes of any iterated node will not be returned along with `elementEnd` tag.\n\t */\n\tshallow?: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should ignore `elementEnd`\n\t * tags. If the option is true walker will not return a parent node of start position. If this option is `true`\n\t * each {@link module:engine/view/element~Element} will be returned once, while if the option is `false` they might be returned\n\t * twice: for `'elementStart'` and `'elementEnd'`.\n\t */\n\tignoreElementEnd?: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/position\n */\n\nimport TypeCheckable from './typecheckable';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\nimport EditableElement from './editableelement';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Item from './item';\nimport type Node from './node';\nimport { default as TreeWalker, type TreeWalkerValue, type TreeWalkerOptions } from './treewalker';\n\n/**\n * Position in the view tree. Position is represented by its parent node and an offset in this parent.\n *\n * In order to create a new position instance use the `createPosition*()` factory methods available in:\n *\n * * {@link module:engine/view/view~View}\n * * {@link module:engine/view/downcastwriter~DowncastWriter}\n * * {@link module:engine/view/upcastwriter~UpcastWriter}\n */\nexport default class Position extends TypeCheckable {\n\t/**\n\t * Position parent.\n\t */\n\tpublic readonly parent: Node | DocumentFragment;\n\n\t/**\n\t * Position offset.\n\t */\n\tpublic offset: number;\n\n\t/**\n\t * Creates a position.\n\t *\n\t * @param parent Position parent.\n\t * @param offset Position offset.\n\t */\n\tconstructor( parent: Node | DocumentFragment, offset: number ) {\n\t\tsuper();\n\n\t\tthis.parent = parent;\n\t\tthis.offset = offset;\n\t}\n\n\t/**\n\t * Node directly after the position. Equals `null` when there is no node after position or position is located\n\t * inside text node.\n\t */\n\tpublic get nodeAfter(): Node | null {\n\t\tif ( this.parent.is( '$text' ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn ( this.parent as Element ).getChild( this.offset ) || null;\n\t}\n\n\t/**\n\t * Node directly before the position. Equals `null` when there is no node before position or position is located\n\t * inside text node.\n\t */\n\tpublic get nodeBefore(): Node | null {\n\t\tif ( this.parent.is( '$text' ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn ( this.parent as Element ).getChild( this.offset - 1 ) || null;\n\t}\n\n\t/**\n\t * Is `true` if position is at the beginning of its {@link module:engine/view/position~Position#parent parent}, `false` otherwise.\n\t */\n\tpublic get isAtStart(): boolean {\n\t\treturn this.offset === 0;\n\t}\n\n\t/**\n\t * Is `true` if position is at the end of its {@link module:engine/view/position~Position#parent parent}, `false` otherwise.\n\t */\n\tpublic get isAtEnd(): boolean {\n\t\tconst endOffset = this.parent.is( '$text' ) ? this.parent.data.length : ( this.parent as any ).childCount;\n\n\t\treturn this.offset === endOffset;\n\t}\n\n\t/**\n\t * Position's root, that is the root of the position's parent element.\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.parent.root;\n\t}\n\n\t/**\n\t * {@link module:engine/view/editableelement~EditableElement EditableElement} instance that contains this position, or `null` if\n\t * position is not inside an editable element.\n\t */\n\tpublic get editableElement(): EditableElement | null {\n\t\tlet editable = this.parent;\n\n\t\twhile ( !( editable instanceof EditableElement ) ) {\n\t\t\tif ( editable.parent ) {\n\t\t\t\teditable = editable.parent;\n\t\t\t} else {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}\n\n\t\treturn editable;\n\t}\n\n\t/**\n\t * Returns a new instance of Position with offset incremented by `shift` value.\n\t *\n\t * @param shift How position offset should get changed. Accepts negative values.\n\t * @returns Shifted position.\n\t */\n\tpublic getShiftedBy( shift: number ): Position {\n\t\tconst shifted = Position._createAt( this );\n\n\t\tconst offset = shifted.offset + shift;\n\t\tshifted.offset = offset < 0 ? 0 : offset;\n\n\t\treturn shifted;\n\t}\n\n\t/**\n\t * Gets the farthest position which matches the callback using\n\t * {@link module:engine/view/treewalker~TreeWalker TreeWalker}.\n\t *\n\t * For example:\n\t *\n\t * ```ts\n\t * getLastMatchingPosition( value => value.type == 'text' ); // <p>{}foo</p> -> <p>foo[]</p>\n\t * getLastMatchingPosition( value => value.type == 'text', { direction: 'backward' } ); // <p>foo[]</p> -> <p>{}foo</p>\n\t * getLastMatchingPosition( value => false ); // Do not move the position.\n\t * ```\n\t *\n\t * @param skip Callback function. Gets {@link module:engine/view/treewalker~TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t * @param options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t * @returns The position after the last item which matches the `skip` callback test.\n\t */\n\tpublic getLastMatchingPosition( skip: ( value: TreeWalkerValue ) => boolean, options: TreeWalkerOptions = {} ): Position {\n\t\toptions.startPosition = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\t\ttreeWalker.skip( skip );\n\n\t\treturn treeWalker.position;\n\t}\n\n\t/**\n\t * Returns ancestors array of this position, that is this position's parent and it's ancestors.\n\t *\n\t * @returns Array with ancestors.\n\t */\n\tpublic getAncestors(): Array<Node | DocumentFragment> {\n\t\tif ( this.parent.is( 'documentFragment' ) ) {\n\t\t\treturn [ this.parent ];\n\t\t} else {\n\t\t\treturn this.parent.getAncestors( { includeSelf: true } );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/node~Node} or {@link module:engine/view/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both positions.\n\t */\n\tpublic getCommonAncestor( position: Position ): Node | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors();\n\t\tconst ancestorsB = position.getAncestors();\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ];\n\t}\n\n\t/**\n\t * Checks whether this position equals given position.\n\t *\n\t * @param otherPosition Position to compare with.\n\t * @returns True if positions are same.\n\t */\n\tpublic isEqual( otherPosition: Position ): boolean {\n\t\treturn ( this.parent == otherPosition.parent && this.offset == otherPosition.offset );\n\t}\n\n\t/**\n\t * Checks whether this position is located before given position. When method returns `false` it does not mean that\n\t * this position is after give one. Two positions may be located inside separate roots and in that situation this\n\t * method will still return `false`.\n\t *\n\t * @see module:engine/view/position~Position#isAfter\n\t * @see module:engine/view/position~Position#compareWith\n\t * @param otherPosition Position to compare with.\n\t * @returns Returns `true` if this position is before given position.\n\t */\n\tpublic isBefore( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'before';\n\t}\n\n\t/**\n\t * Checks whether this position is located after given position. When method returns `false` it does not mean that\n\t * this position is before give one. Two positions may be located inside separate roots and in that situation this\n\t * method will still return `false`.\n\t *\n\t * @see module:engine/view/position~Position#isBefore\n\t * @see module:engine/view/position~Position#compareWith\n\t * @param otherPosition Position to compare with.\n\t * @returns Returns `true` if this position is after given position.\n\t */\n\tpublic isAfter( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'after';\n\t}\n\n\t/**\n\t * Checks whether this position is before, after or in same position that other position. Two positions may be also\n\t * different when they are located in separate roots.\n\t *\n\t * @param otherPosition Position to compare with.\n\t */\n\tpublic compareWith( otherPosition: Position ): PositionRelation {\n\t\tif ( this.root !== otherPosition.root ) {\n\t\t\treturn 'different';\n\t\t}\n\n\t\tif ( this.isEqual( otherPosition ) ) {\n\t\t\treturn 'same';\n\t\t}\n\n\t\t// Get path from root to position's parent element.\n\t\tconst thisPath = this.parent.is( 'node' ) ? this.parent.getPath() : [];\n\t\tconst otherPath = otherPosition.parent.is( 'node' ) ? otherPosition.parent.getPath() : [];\n\n\t\t// Add the positions' offsets to the parents offsets.\n\t\tthisPath.push( this.offset );\n\t\totherPath.push( otherPosition.offset );\n\n\t\t// Compare both path arrays to find common ancestor.\n\t\tconst result = compareArrays( thisPath, otherPath );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'prefix':\n\t\t\t\treturn 'before';\n\n\t\t\tcase 'extension':\n\t\t\t\treturn 'after';\n\n\t\t\tdefault:\n\t\t\t\t// Cast to number to avoid having 'same' as a type of `result`.\n\t\t\t\treturn thisPath[ result as number ] < otherPath[ result as number ] ? 'before' : 'after';\n\t\t}\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/view/treewalker~TreeWalker TreeWalker} instance with this positions as a start position.\n\t *\n\t * @param options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}\n\t */\n\tpublic getWalker( options: TreeWalkerOptions = {} ): TreeWalker {\n\t\toptions.startPosition = this;\n\n\t\treturn new TreeWalker( options );\n\t}\n\n\t/**\n\t * Clones this position.\n\t */\n\tpublic clone(): Position {\n\t\treturn new Position( this.parent, this.offset );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link module:engine/view/position~Position._createBefore},\n\t * * {@link module:engine/view/position~Position._createAfter}.\n\t *\n\t * @internal\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic static _createAt( itemOrPosition: Item | Position, offset?: PositionOffset ): Position {\n\t\tif ( itemOrPosition instanceof Position ) {\n\t\t\treturn new this( itemOrPosition.parent, itemOrPosition.offset );\n\t\t} else {\n\t\t\tconst node = itemOrPosition;\n\n\t\t\tif ( offset == 'end' ) {\n\t\t\t\toffset = node.is( '$text' ) ? node.data.length : ( node as any ).childCount;\n\t\t\t} else if ( offset == 'before' ) {\n\t\t\t\treturn this._createBefore( node );\n\t\t\t} else if ( offset == 'after' ) {\n\t\t\t\treturn this._createAfter( node );\n\t\t\t} else if ( offset !== 0 && !offset ) {\n\t\t\t\t/**\n\t\t\t\t * {@link module:engine/view/view~View#createPositionAt `View#createPositionAt()`}\n\t\t\t\t * requires the offset to be specified when the first parameter is a view item.\n\t\t\t\t *\n\t\t\t\t * @error view-createpositionat-offset-required\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'view-createpositionat-offset-required', node );\n\t\t\t}\n\n\t\t\treturn new Position( node as any, offset as number );\n\t\t}\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @internal\n\t * @param item View item after which the position should be located.\n\t */\n\tpublic static _createAfter( item: Item ): Position {\n\t\t// TextProxy is not a instance of Node so we need do handle it in specific way.\n\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\treturn new Position( item.textNode, item.offsetInText + item.data.length );\n\t\t}\n\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You can not make a position after a root.\n\t\t\t *\n\t\t\t * @error view-position-after-root\n\t\t\t * @param {module:engine/view/node~Node} root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-position-after-root', item, { root: item } );\n\t\t}\n\n\t\treturn new Position( item.parent, ( item.index as number ) + 1 );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @internal\n\t * @param item View item before which the position should be located.\n\t */\n\tpublic static _createBefore( item: Item ): Position {\n\t\t// TextProxy is not a instance of Node so we need do handle it in specific way.\n\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\treturn new Position( item.textNode, item.offsetInText );\n\t\t}\n\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You cannot make a position before a root.\n\t\t\t *\n\t\t\t * @error view-position-before-root\n\t\t\t * @param {module:engine/view/node~Node} root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-position-before-root', item, { root: item } );\n\t\t}\n\n\t\treturn new Position( item.parent, item.index as number );\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nPosition.prototype.is = function( type: string ): boolean {\n\treturn type === 'position' || type === 'view:position';\n};\n\n/**\n * A flag indicating whether this position is `'before'` or `'after'` or `'same'` as given position.\n * If positions are in different roots `'different'` flag is returned.\n */\nexport type PositionRelation = 'before' | 'after' | 'same' | 'different';\n\n/**\n * Offset or one of the flags.\n */\nexport type PositionOffset = number | 'before' | 'after' | 'end';\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/range\n */\n\nimport TypeCheckable from './typecheckable';\nimport Position from './position';\n\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Item from './item';\nimport type Node from './node';\nimport { default as TreeWalker, type TreeWalkerValue, type TreeWalkerOptions } from './treewalker';\n\n/**\n * Range in the view tree. A range is represented by its start and end {@link module:engine/view/position~Position positions}.\n *\n * In order to create a new position instance use the `createPosition*()` factory methods available in:\n *\n * * {@link module:engine/view/view~View}\n * * {@link module:engine/view/downcastwriter~DowncastWriter}\n * * {@link module:engine/view/upcastwriter~UpcastWriter}\n */\nexport default class Range extends TypeCheckable implements Iterable<TreeWalkerValue> {\n\t/**\n\t * Start position.\n\t */\n\tpublic readonly start: Position;\n\n\t/**\n\t * End position.\n\t */\n\tpublic readonly end: Position;\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** Constructor creates it's own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param start Start position.\n\t * @param end End position. If not set, range will be collapsed at the `start` position.\n\t */\n\tconstructor( start: Position, end: Position | null = null ) {\n\t\tsuper();\n\n\t\tthis.start = start.clone();\n\t\tthis.end = end ? end.clone() : start.clone();\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all {@link module:engine/view/item~Item view items} that are in this range and returns\n\t * them together with additional information like length or {@link module:engine/view/position~Position positions},\n\t * grouped as {@link module:engine/view/treewalker~TreeWalkerValue}.\n\t *\n\t * This iterator uses {@link module:engine/view/treewalker~TreeWalker TreeWalker} with `boundaries` set to this range and\n\t * `ignoreElementEnd` option\n\t * set to `true`.\n\t */\n\tpublic* [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\tyield* new TreeWalker( { boundaries: this, ignoreElementEnd: true } );\n\t}\n\n\t/**\n\t * Returns whether the range is collapsed, that is it start and end positions are equal.\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this.start.isEqual( this.end );\n\t}\n\n\t/**\n\t * Returns whether this range is flat, that is if {@link module:engine/view/range~Range#start start} position and\n\t * {@link module:engine/view/range~Range#end end} position are in the same {@link module:engine/view/position~Position#parent parent}.\n\t */\n\tpublic get isFlat(): boolean {\n\t\treturn this.start.parent === this.end.parent;\n\t}\n\n\t/**\n\t * Range root element.\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.start.root;\n\t}\n\n\t/**\n\t * Creates a maximal range that has the same content as this range but is expanded in both ways (at the beginning\n\t * and at the end).\n\t *\n\t * For example:\n\t *\n\t * ```html\n\t * <p>Foo</p><p><b>{Bar}</b></p> -> <p>Foo</p>[<p><b>Bar</b>]</p>\n\t * <p><b>foo</b>{bar}<span></span></p> -> <p><b>foo[</b>bar<span></span>]</p>\n\t * ```\n\t *\n\t * Note that in the sample above:\n\t *\n\t * - `<p>` have type of {@link module:engine/view/containerelement~ContainerElement},\n\t * - `<b>` have type of {@link module:engine/view/attributeelement~AttributeElement},\n\t * - `<span>` have type of {@link module:engine/view/uielement~UIElement}.\n\t *\n\t * @returns Enlarged range.\n\t */\n\tpublic getEnlarged(): Range {\n\t\tlet start = this.start.getLastMatchingPosition( enlargeTrimSkip, { direction: 'backward' } );\n\t\tlet end = this.end.getLastMatchingPosition( enlargeTrimSkip );\n\n\t\t// Fix positions, in case if they are in Text node.\n\t\tif ( start.parent.is( '$text' ) && start.isAtStart ) {\n\t\t\tstart = Position._createBefore( start.parent );\n\t\t}\n\n\t\tif ( end.parent.is( '$text' ) && end.isAtEnd ) {\n\t\t\tend = Position._createAfter( end.parent );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Creates a minimum range that has the same content as this range but is trimmed in both ways (at the beginning\n\t * and at the end).\n\t *\n\t * For example:\n\t *\n\t * ```html\n\t * <p>Foo</p>[<p><b>Bar</b>]</p> -> <p>Foo</p><p><b>{Bar}</b></p>\n\t * <p><b>foo[</b>bar<span></span>]</p> -> <p><b>foo</b>{bar}<span></span></p>\n\t * ```\n\t *\n\t * Note that in the sample above:\n\t *\n\t * - `<p>` have type of {@link module:engine/view/containerelement~ContainerElement},\n\t * - `<b>` have type of {@link module:engine/view/attributeelement~AttributeElement},\n\t * - `<span>` have type of {@link module:engine/view/uielement~UIElement}.\n\t *\n\t * @returns Shrunk range.\n\t */\n\tpublic getTrimmed(): Range {\n\t\tlet start = this.start.getLastMatchingPosition( enlargeTrimSkip );\n\n\t\tif ( start.isAfter( this.end ) || start.isEqual( this.end ) ) {\n\t\t\treturn new Range( start, start );\n\t\t}\n\n\t\tlet end = this.end.getLastMatchingPosition( enlargeTrimSkip, { direction: 'backward' } );\n\t\tconst nodeAfterStart = start.nodeAfter;\n\t\tconst nodeBeforeEnd = end.nodeBefore;\n\n\t\t// Because TreeWalker prefers positions next to text node, we need to move them manually into these text nodes.\n\t\tif ( nodeAfterStart && nodeAfterStart.is( '$text' ) ) {\n\t\t\tstart = new Position( nodeAfterStart, 0 );\n\t\t}\n\n\t\tif ( nodeBeforeEnd && nodeBeforeEnd.is( '$text' ) ) {\n\t\t\tend = new Position( nodeBeforeEnd, nodeBeforeEnd.data.length );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Two ranges are equal if their start and end positions are equal.\n\t *\n\t * @param otherRange Range to compare with.\n\t * @returns `true` if ranges are equal, `false` otherwise\n\t */\n\tpublic isEqual( otherRange: Range ): boolean {\n\t\treturn this == otherRange || ( this.start.isEqual( otherRange.start ) && this.end.isEqual( otherRange.end ) );\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link module:engine/view/position~Position position}.\n\t *\n\t * @param position Position to check.\n\t * @returns `true` if given {@link module:engine/view/position~Position position} is contained in this range, `false` otherwise.\n\t */\n\tpublic containsPosition( position: Position ): boolean {\n\t\treturn position.isAfter( this.start ) && position.isBefore( this.end );\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link module:engine/view/range~Range range}.\n\t *\n\t * @param otherRange Range to check.\n\t * @param loose Whether the check is loose or strict. If the check is strict (`false`), compared range cannot\n\t * start or end at the same position as this range boundaries. If the check is loose (`true`), compared range can start, end or\n\t * even be equal to this range. Note that collapsed ranges are always compared in strict mode.\n\t * @returns `true` if given {@link module:engine/view/range~Range range} boundaries are contained by this range, `false`\n\t * otherwise.\n\t */\n\tpublic containsRange( otherRange: Range, loose: boolean = false ): boolean {\n\t\tif ( otherRange.isCollapsed ) {\n\t\t\tloose = false;\n\t\t}\n\n\t\tconst containsStart = this.containsPosition( otherRange.start ) || ( loose && this.start.isEqual( otherRange.start ) );\n\t\tconst containsEnd = this.containsPosition( otherRange.end ) || ( loose && this.end.isEqual( otherRange.end ) );\n\n\t\treturn containsStart && containsEnd;\n\t}\n\n\t/**\n\t * Computes which part(s) of this {@link module:engine/view/range~Range range} is not a part of given\n\t * {@link module:engine/view/range~Range range}.\n\t * Returned array contains zero, one or two {@link module:engine/view/range~Range ranges}.\n\t *\n\t * Examples:\n\t *\n\t * ```ts\n\t * let foo = downcastWriter.createText( 'foo' );\n\t * let img = downcastWriter.createContainerElement( 'img' );\n\t * let bar = downcastWriter.createText( 'bar' );\n\t * let p = downcastWriter.createContainerElement( 'p', null, [ foo, img, bar ] );\n\t *\n\t * let range = view.createRange( view.createPositionAt( foo, 2 ), view.createPositionAt( bar, 1 ); // \"o\", img, \"b\" are in range.\n\t * let otherRange = view.createRange( // \"oo\", img, \"ba\" are in range.\n\t * \tview.createPositionAt( foo, 1 ),\n\t * \tview.createPositionAt( bar, 2 )\n\t * );\n\t * let transformed = range.getDifference( otherRange );\n\t * // transformed array has no ranges because `otherRange` contains `range`\n\t *\n\t * otherRange = view.createRange( view.createPositionAt( foo, 1 ), view.createPositionAt( p, 2 ); // \"oo\", img are in range.\n\t * transformed = range.getDifference( otherRange );\n\t * // transformed array has one range: from ( p, 2 ) to ( bar, 1 )\n\t *\n\t * otherRange = view.createRange( view.createPositionAt( p, 1 ), view.createPositionAt( p, 2 ) ); // img is in range.\n\t * transformed = range.getDifference( otherRange );\n\t * // transformed array has two ranges: from ( foo, 1 ) to ( p, 1 ) and from ( p, 2 ) to ( bar, 1 )\n\t * ```\n\t *\n\t * @param otherRange Range to differentiate against.\n\t * @returns The difference between ranges.\n\t */\n\tpublic getDifference( otherRange: Range ): Array<Range> {\n\t\tconst ranges: Array<Range> = [];\n\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect.\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the start to the middle of this range.\n\t\t\t\tranges.push( new Range( this.start, otherRange.start ) );\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the middle of this range to the end.\n\t\t\t\tranges.push( new Range( otherRange.end, this.end ) );\n\t\t\t}\n\t\t} else {\n\t\t\t// Ranges do not intersect, return the original range.\n\t\t\tranges.push( this.clone() );\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Returns an intersection of this {@link module:engine/view/range~Range range} and given {@link module:engine/view/range~Range range}.\n\t * Intersection is a common part of both of those ranges. If ranges has no common part, returns `null`.\n\t *\n\t * Examples:\n\t *\n\t * ```ts\n\t * let foo = downcastWriter.createText( 'foo' );\n\t * let img = downcastWriter.createContainerElement( 'img' );\n\t * let bar = downcastWriter.createText( 'bar' );\n\t * let p = downcastWriter.createContainerElement( 'p', null, [ foo, img, bar ] );\n\t *\n\t * let range = view.createRange( view.createPositionAt( foo, 2 ), view.createPositionAt( bar, 1 ); // \"o\", img, \"b\" are in range.\n\t * let otherRange = view.createRange( view.createPositionAt( foo, 1 ), view.createPositionAt( p, 2 ); // \"oo\", img are in range.\n\t * let transformed = range.getIntersection( otherRange ); // range from ( foo, 1 ) to ( p, 2 ).\n\t *\n\t * otherRange = view.createRange( view.createPositionAt( bar, 1 ), view.createPositionAt( bar, 3 ); \"ar\" is in range.\n\t * transformed = range.getIntersection( otherRange ); // null - no common part.\n\t * ```\n\t *\n\t * @param otherRange Range to check for intersection.\n\t * @returns A common part of given ranges or `null` if ranges have no common part.\n\t */\n\tpublic getIntersection( otherRange: Range ): Range | null {\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect, so a common range will be returned.\n\t\t\t// At most, it will be same as this range.\n\t\t\tlet commonRangeStart = this.start;\n\t\t\tlet commonRangeEnd = this.end;\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means thaNt we have to\n\t\t\t\t// shrink common range to the given range start.\n\t\t\t\tcommonRangeStart = otherRange.start;\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// shrink common range to the given range end.\n\t\t\t\tcommonRangeEnd = otherRange.end;\n\t\t\t}\n\n\t\t\treturn new Range( commonRangeStart, commonRangeEnd );\n\t\t}\n\n\t\t// Ranges do not intersect, so they do not have common part.\n\t\treturn null;\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/view/treewalker~TreeWalker TreeWalker} instance with this range as a boundary.\n\t *\n\t * @param options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t */\n\tpublic getWalker( options: TreeWalkerOptions = {} ): TreeWalker {\n\t\toptions.boundaries = this;\n\n\t\treturn new TreeWalker( options );\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/node~Node} or {@link module:engine/view/documentfragment~DocumentFragment}\n\t * which is a common ancestor of range's both ends (in which the entire range is contained).\n\t */\n\tpublic getCommonAncestor(): Node | DocumentFragment | null {\n\t\treturn this.start.getCommonAncestor( this.end );\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/view/element~Element Element} contained by the range.\n\t * The element will be returned when it is the **only** node within the range and **fully–contained**\n\t * at the same time.\n\t */\n\tpublic getContainedElement(): Element | null {\n\t\tif ( this.isCollapsed ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tlet nodeAfterStart = this.start.nodeAfter;\n\t\tlet nodeBeforeEnd = this.end.nodeBefore;\n\n\t\t// Handle the situation when the range position is at the beginning / at the end of a text node.\n\t\t// In such situation `.nodeAfter` and `.nodeBefore` are `null` but the range still might be spanning\n\t\t// over one element.\n\t\t//\n\t\t// <p>Foo{<span class=\"widget\"></span>}bar</p> vs <p>Foo[<span class=\"widget\"></span>]bar</p>\n\t\t//\n\t\t// These are basically the same range, only the difference is if the range position is at\n\t\t// at the end/at the beginning of a text node or just before/just after the text node.\n\t\t//\n\t\tif ( this.start.parent.is( '$text' ) && this.start.isAtEnd && this.start.parent.nextSibling ) {\n\t\t\tnodeAfterStart = this.start.parent.nextSibling;\n\t\t}\n\n\t\tif ( this.end.parent.is( '$text' ) && this.end.isAtStart && this.end.parent.previousSibling ) {\n\t\t\tnodeBeforeEnd = this.end.parent.previousSibling;\n\t\t}\n\n\t\tif ( nodeAfterStart && nodeAfterStart.is( 'element' ) && nodeAfterStart === nodeBeforeEnd ) {\n\t\t\treturn nodeAfterStart;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Clones this range.\n\t */\n\tpublic clone(): Range {\n\t\treturn new Range( this.start, this.end );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/view/item~Item view items} that are in this range and returns\n\t * them.\n\t *\n\t * This method uses {@link module:engine/view/treewalker~TreeWalker} with `boundaries` set to this range and `ignoreElementEnd` option\n\t * set to `true`. However it returns only {@link module:engine/view/item~Item items},\n\t * not {@link module:engine/view/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/view/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t */\n\tpublic* getItems( options: TreeWalkerOptions = {} ): IterableIterator<Item> {\n\t\toptions.boundaries = this;\n\t\toptions.ignoreElementEnd = true;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.item;\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/view/position~Position positions} that are boundaries or\n\t * contained in this range.\n\t *\n\t * This method uses {@link module:engine/view/treewalker~TreeWalker} with `boundaries` set to this range. However it returns only\n\t * {@link module:engine/view/position~Position positions}, not {@link module:engine/view/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/view/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param options Object with configuration options. See {@link module:engine/view/treewalker~TreeWalker}.\n\t */\n\tpublic* getPositions( options: TreeWalkerOptions = {} ): IterableIterator<Position> {\n\t\toptions.boundaries = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tyield treeWalker.position;\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.nextPosition;\n\t\t}\n\t}\n\n\t/**\n\t * Checks and returns whether this range intersects with the given range.\n\t *\n\t * @param otherRange Range to compare with.\n\t * @returns True if ranges intersect.\n\t */\n\tpublic isIntersecting( otherRange: Range ): boolean {\n\t\treturn this.start.isBefore( otherRange.end ) && this.end.isAfter( otherRange.start );\n\t}\n\n\t/**\n\t * Creates a range from the given parents and offsets.\n\t *\n\t * @internal\n\t * @param startElement Start position parent element.\n\t * @param startOffset Start position offset.\n\t * @param endElement End position parent element.\n\t * @param endOffset End position offset.\n\t * @returns Created range.\n\t */\n\tpublic static _createFromParentsAndOffsets(\n\t\tstartElement: Element | DocumentFragment,\n\t\tstartOffset: number,\n\t\tendElement: Element | DocumentFragment,\n\t\tendOffset: number\n\t): Range {\n\t\treturn new this(\n\t\t\tnew Position( startElement, startOffset ),\n\t\t\tnew Position( endElement, endOffset )\n\t\t);\n\t}\n\n\t/**\n\t * Creates a new range, spreading from specified {@link module:engine/view/position~Position position} to a position moved by\n\t * given `shift`. If `shift` is a negative value, shifted position is treated as the beginning of the range.\n\t *\n\t * @internal\n\t * @param position Beginning of the range.\n\t * @param shift How long the range should be.\n\t */\n\tpublic static _createFromPositionAndShift( position: Position, shift: number ): Range {\n\t\tconst start = position;\n\t\tconst end = position.getShiftedBy( shift );\n\n\t\treturn shift > 0 ? new this( start, end ) : new this( end, start );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @internal\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic static _createIn( element: Element | DocumentFragment ): Range {\n\t\treturn this._createFromParentsAndOffsets( element, 0, element, element.childCount );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t *\n\t * @internal\n\t */\n\tpublic static _createOn( item: Item ): Range {\n\t\tconst size = item.is( '$textProxy' ) ? item.offsetSize : 1;\n\n\t\treturn this._createFromPositionAndShift( Position._createBefore( item ), size );\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nRange.prototype.is = function( type: string ): boolean {\n\treturn type === 'range' || type === 'view:range';\n};\n\n/**\n * Function used by getEnlarged and getTrimmed methods.\n */\nfunction enlargeTrimSkip( value: TreeWalkerValue ): boolean {\n\tif ( value.item.is( 'attributeElement' ) || value.item.is( 'uiElement' ) ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/selection\n */\n\nimport TypeCheckable from './typecheckable';\nimport Range from './range';\nimport Position, { type PositionOffset } from './position';\nimport Node from './node';\nimport DocumentSelection from './documentselection';\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tcount,\n\tisIterable\n} from '@ckeditor/ckeditor5-utils';\n\nimport type Element from './element';\nimport type Item from './item';\nimport type EditableElement from './editableelement';\n\n/**\n * Class representing an arbirtary selection in the view.\n * See also {@link module:engine/view/documentselection~DocumentSelection}.\n *\n * New selection instances can be created via the constructor or one these methods:\n *\n * * {@link module:engine/view/view~View#createSelection `View#createSelection()`},\n * * {@link module:engine/view/upcastwriter~UpcastWriter#createSelection `UpcastWriter#createSelection()`}.\n *\n * A selection can consist of {@link module:engine/view/range~Range ranges} that can be set by using\n * the {@link module:engine/view/selection~Selection#setTo `Selection#setTo()`} method.\n */\nexport default class Selection extends EmitterMixin( TypeCheckable ) {\n\t/**\n\t * Stores all ranges that are selected.\n\t */\n\tprivate _ranges: Array<Range>;\n\n\t/**\n\t * Specifies whether the last added range was added as a backward or forward range.\n\t */\n\tprivate _lastRangeBackward: boolean;\n\n\t/**\n\t * Specifies whether selection instance is fake.\n\t */\n\tprivate _isFake: boolean;\n\n\t/**\n\t * Fake selection's label.\n\t */\n\tprivate _fakeSelectionLabel: string;\n\n\t/**\n\t * Creates new selection instance.\n\t *\n\t * **Note**: The selection constructor is available as a factory method:\n\t *\n\t * * {@link module:engine/view/view~View#createSelection `View#createSelection()`},\n\t * * {@link module:engine/view/upcastwriter~UpcastWriter#createSelection `UpcastWriter#createSelection()`}.\n\t *\n\t * ```ts\n\t * // Creates empty selection without ranges.\n\t * const selection = writer.createSelection();\n\t *\n\t * // Creates selection at the given range.\n\t * const range = writer.createRange( start, end );\n\t * const selection = writer.createSelection( range );\n\t *\n\t * // Creates selection at the given ranges\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * const selection = writer.createSelection( ranges );\n\t *\n\t * // Creates selection from the other selection.\n\t * const otherSelection = writer.createSelection();\n\t * const selection = writer.createSelection( otherSelection );\n\t *\n\t * // Creates selection from the document selection.\n\t * const selection = writer.createSelection( editor.editing.view.document.selection );\n\t *\n\t * // Creates selection at the given position.\n\t * const position = writer.createPositionFromPath( root, path );\n\t * const selection = writer.createSelection( position );\n\t *\n\t * // Creates collapsed selection at the position of given item and offset.\n\t * const paragraph = writer.createContainerElement( 'paragraph' );\n\t * const selection = writer.createSelection( paragraph, offset );\n\t *\n\t * // Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t * // first child of that element and ends after the last child of that element.\n\t * const selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t * // Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t * // just after the item.\n\t * const selection = writer.createSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = writer.createSelection( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * @internal\n\t */\n\tconstructor(\n\t\t...args: [] | [\n\t\t\tselectable: Node,\n\t\t\tplaceOrOffset: PlaceOrOffset,\n\t\t\toptions?: SelectionOptions\n\t\t] | [\n\t\t\tselectable?: Exclude<Selectable, Node>,\n\t\t\toptions?: SelectionOptions\n\t\t]\n\t) {\n\t\tsuper();\n\n\t\tthis._ranges = [];\n\t\tthis._lastRangeBackward = false;\n\t\tthis._isFake = false;\n\t\tthis._fakeSelectionLabel = '';\n\n\t\tif ( args.length ) {\n\t\t\tthis.setTo( ...args );\n\t\t}\n\t}\n\n\t/**\n\t * Returns true if selection instance is marked as `fake`.\n\t *\n\t * @see #setTo\n\t */\n\tpublic get isFake(): boolean {\n\t\treturn this._isFake;\n\t}\n\n\t/**\n\t * Returns fake selection label.\n\t *\n\t * @see #setTo\n\t */\n\tpublic get fakeSelectionLabel(): string {\n\t\treturn this._fakeSelectionLabel;\n\t}\n\n\t/**\n\t * Selection anchor. Anchor may be described as a position where the selection starts. Together with\n\t * {@link #focus focus} they define the direction of selection, which is important\n\t * when expanding/shrinking selection. Anchor is always the start or end of the most recent added range.\n\t * It may be a bit unintuitive when there are multiple ranges in selection.\n\t *\n\t * @see #focus\n\t */\n\tpublic get anchor(): Position | null {\n\t\tif ( !this._ranges.length ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\t\tconst anchor = this._lastRangeBackward ? range.end : range.start;\n\n\t\treturn anchor.clone();\n\t}\n\n\t/**\n\t * Selection focus. Focus is a position where the selection ends.\n\t *\n\t * @see #anchor\n\t */\n\tpublic get focus(): Position | null {\n\t\tif ( !this._ranges.length ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\t\tconst focus = this._lastRangeBackward ? range.start : range.end;\n\n\t\treturn focus.clone();\n\t}\n\n\t/**\n\t * Returns whether the selection is collapsed. Selection is collapsed when there is exactly one range which is\n\t * collapsed.\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this.rangeCount === 1 && this._ranges[ 0 ].isCollapsed;\n\t}\n\n\t/**\n\t * Returns number of ranges in selection.\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._ranges.length;\n\t}\n\n\t/**\n\t * Specifies whether the {@link #focus} precedes {@link #anchor}.\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn !this.isCollapsed && this._lastRangeBackward;\n\t}\n\n\t/**\n\t * {@link module:engine/view/editableelement~EditableElement EditableElement} instance that contains this selection, or `null`\n\t * if the selection is not inside an editable element.\n\t */\n\tpublic get editableElement(): EditableElement | null {\n\t\tif ( this.anchor ) {\n\t\t\treturn this.anchor.editableElement;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns an iterable that contains copies of all ranges added to the selection.\n\t */\n\tpublic* getRanges(): IterableIterator<Range> {\n\t\tfor ( const range of this._ranges ) {\n\t\t\tyield range.clone();\n\t\t}\n\t}\n\n\t/**\n\t * Returns copy of the first range in the selection. First range is the one which\n\t * {@link module:engine/view/range~Range#start start} position {@link module:engine/view/position~Position#isBefore is before} start\n\t * position of all other ranges (not to confuse with the first range added to the selection).\n\t * Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\tlet first = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !first || range.start.isBefore( first.start ) ) {\n\t\t\t\tfirst = range;\n\t\t\t}\n\t\t}\n\n\t\treturn first ? first.clone() : null;\n\t}\n\n\t/**\n\t * Returns copy of the last range in the selection. Last range is the one which {@link module:engine/view/range~Range#end end}\n\t * position {@link module:engine/view/position~Position#isAfter is after} end position of all other ranges (not to confuse\n\t * with the last range added to the selection). Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getLastRange(): Range | null {\n\t\tlet last = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !last || range.end.isAfter( last.end ) ) {\n\t\t\t\tlast = range;\n\t\t\t}\n\t\t}\n\n\t\treturn last ? last.clone() : null;\n\t}\n\n\t/**\n\t * Returns copy of the first position in the selection. First position is the position that\n\t * {@link module:engine/view/position~Position#isBefore is before} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\tconst firstRange = this.getFirstRange();\n\n\t\treturn firstRange ? firstRange.start.clone() : null;\n\t}\n\n\t/**\n\t * Returns copy of the last position in the selection. Last position is the position that\n\t * {@link module:engine/view/position~Position#isAfter is after} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\tconst lastRange = this.getLastRange();\n\n\t\treturn lastRange ? lastRange.end.clone() : null;\n\t}\n\n\t/**\n\t * Checks whether, this selection is equal to given selection. Selections are equal if they have same directions,\n\t * same number of ranges and all ranges from one selection equal to a range from other selection.\n\t *\n\t * @param otherSelection Selection to compare with.\n\t * @returns `true` if selections are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherSelection: Selection | DocumentSelection ): boolean {\n\t\tif ( this.isFake != otherSelection.isFake ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this.isFake && this.fakeSelectionLabel != otherSelection.fakeSelectionLabel ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this.rangeCount != otherSelection.rangeCount ) {\n\t\t\treturn false;\n\t\t} else if ( this.rangeCount === 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( !this.anchor!.isEqual( otherSelection.anchor! ) || !this.focus!.isEqual( otherSelection.focus! ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tfor ( const thisRange of this._ranges ) {\n\t\t\tlet found = false;\n\n\t\t\tfor ( const otherRange of ( otherSelection as any )._ranges ) {\n\t\t\t\tif ( thisRange.isEqual( otherRange ) ) {\n\t\t\t\t\tfound = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( !found ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks whether this selection is similar to given selection. Selections are similar if they have same directions, same\n\t * number of ranges, and all {@link module:engine/view/range~Range#getTrimmed trimmed} ranges from one selection are\n\t * equal to any trimmed range from other selection.\n\t *\n\t * @param otherSelection Selection to compare with.\n\t * @returns `true` if selections are similar, `false` otherwise.\n\t */\n\tpublic isSimilar( otherSelection: Selection | DocumentSelection ): boolean {\n\t\tif ( this.isBackward != otherSelection.isBackward ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst numOfRangesA = count( this.getRanges() );\n\t\tconst numOfRangesB = count( otherSelection.getRanges() );\n\n\t\t// If selections have different number of ranges, they cannot be similar.\n\t\tif ( numOfRangesA != numOfRangesB ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// If both selections have no ranges, they are similar.\n\t\tif ( numOfRangesA == 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Check if each range in one selection has a similar range in other selection.\n\t\tfor ( let rangeA of this.getRanges() ) {\n\t\t\trangeA = rangeA.getTrimmed();\n\n\t\t\tlet found = false;\n\n\t\t\tfor ( let rangeB of otherSelection.getRanges() ) {\n\t\t\t\trangeB = rangeB.getTrimmed();\n\n\t\t\t\tif ( rangeA.start.isEqual( rangeB.start ) && rangeA.end.isEqual( rangeB.end ) ) {\n\t\t\t\t\tfound = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// For `rangeA`, neither range in `otherSelection` was similar. So selections are not similar.\n\t\t\tif ( !found ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// There were no ranges that weren't matched. Selections are similar.\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/view/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\tif ( this.rangeCount !== 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.getFirstRange()!.getContainedElement();\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/view/selection~Selectable selectable}.\n\t *\n\t * ```ts\n\t * // Sets selection to the given range.\n\t * const range = writer.createRange( start, end );\n\t * selection.setTo( range );\n\t *\n\t * // Sets selection to given ranges.\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * selection.setTo( range );\n\t *\n\t * // Sets selection to the other selection.\n\t * const otherSelection = writer.createSelection();\n\t * selection.setTo( otherSelection );\n\t *\n\t * // Sets selection to contents of DocumentSelection.\n\t * selection.setTo( editor.editing.view.document.selection );\n\t *\n\t * // Sets collapsed selection at the given position.\n\t * const position = writer.createPositionAt( root, path );\n\t * selection.setTo( position );\n\t *\n\t * // Sets collapsed selection at the position of given item and offset.\n\t * selection.setTo( paragraph, offset );\n\t * ```\n\t *\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * ```ts\n\t * selection.setTo( paragraph, 'in' );\n\t * ```\n\t *\n\t * Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t * ```ts\n\t * selection.setTo( paragraph, 'on' );\n\t *\n\t * // Clears selection. Removes all ranges.\n\t * selection.setTo( null );\n\t * ```\n\t *\n\t * `Selection#setTo()` method allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Sets selection as backward.\n\t * selection.setTo( range, { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * selection.setTo( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * @fires change\n\t */\n\tpublic setTo(\n\t\t...args: [\n\t\t\tselectable: Node,\n\t\t\tplaceOrOffset: PlaceOrOffset,\n\t\t\toptions?: SelectionOptions\n\t\t] | [\n\t\t\tselectable?: Exclude<Selectable, Node>,\n\t\t\toptions?: SelectionOptions\n\t\t]\n\t): void {\n\t\tlet [ selectable, placeOrOffset, options ] = args;\n\n\t\tif ( typeof placeOrOffset == 'object' ) {\n\t\t\toptions = placeOrOffset;\n\t\t\tplaceOrOffset = undefined;\n\t\t}\n\n\t\tif ( selectable === null ) {\n\t\t\tthis._setRanges( [] );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( selectable instanceof Selection || selectable instanceof DocumentSelection ) {\n\t\t\tthis._setRanges( selectable.getRanges(), selectable.isBackward );\n\t\t\tthis._setFakeOptions( { fake: selectable.isFake, label: selectable.fakeSelectionLabel } );\n\t\t} else if ( selectable instanceof Range ) {\n\t\t\tthis._setRanges( [ selectable ], options && options.backward );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( selectable instanceof Position ) {\n\t\t\tthis._setRanges( [ new Range( selectable ) ] );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( selectable instanceof Node ) {\n\t\t\tconst backward = !!options && !!options.backward;\n\t\t\tlet range;\n\n\t\t\tif ( placeOrOffset === undefined ) {\n\t\t\t\t/**\n\t\t\t\t * selection.setTo requires the second parameter when the first parameter is a node.\n\t\t\t\t *\n\t\t\t\t * @error view-selection-setto-required-second-parameter\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'view-selection-setto-required-second-parameter', this );\n\t\t\t} else if ( placeOrOffset == 'in' ) {\n\t\t\t\trange = Range._createIn( selectable as Element );\n\t\t\t} else if ( placeOrOffset == 'on' ) {\n\t\t\t\trange = Range._createOn( selectable );\n\t\t\t} else {\n\t\t\t\trange = new Range( Position._createAt( selectable, placeOrOffset ) );\n\t\t\t}\n\n\t\t\tthis._setRanges( [ range ], backward );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else if ( isIterable( selectable ) ) {\n\t\t\t// We assume that the selectable is an iterable of ranges.\n\t\t\t// Array.from() is used to prevent setting ranges to the old iterable\n\t\t\tthis._setRanges( selectable, options && options.backward );\n\t\t\tthis._setFakeOptions( options );\n\t\t} else {\n\t\t\t/**\n\t\t\t * Cannot set selection to given place.\n\t\t\t *\n\t\t\t * @error view-selection-setto-not-selectable\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-selection-setto-not-selectable', this );\n\t\t}\n\n\t\tthis.fire<ViewSelectionChangeEvent>( 'change' );\n\t}\n\n\t/**\n\t * Moves {@link #focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as {@link module:engine/view/view~View#createPositionAt view.createPositionAt()}\n\t * parameters.\n\t *\n\t * @fires change\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic setFocus( itemOrPosition: Item | Position, offset?: PositionOffset ): void {\n\t\tif ( this.anchor === null ) {\n\t\t\t/**\n\t\t\t * Cannot set selection focus if there are no ranges in selection.\n\t\t\t *\n\t\t\t * @error view-selection-setfocus-no-ranges\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-selection-setfocus-no-ranges', this );\n\t\t}\n\n\t\tconst newFocus = Position._createAt( itemOrPosition, offset );\n\n\t\tif ( newFocus.compareWith( this.focus! ) == 'same' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst anchor = this.anchor;\n\n\t\tthis._ranges.pop();\n\n\t\tif ( newFocus.compareWith( anchor ) == 'before' ) {\n\t\t\tthis._addRange( new Range( newFocus, anchor ), true );\n\t\t} else {\n\t\t\tthis._addRange( new Range( anchor, newFocus ) );\n\t\t}\n\n\t\tthis.fire<ViewSelectionChangeEvent>( 'change' );\n\t}\n\n\t/**\n\t * Replaces all ranges that were added to the selection with given array of ranges. Last range of the array\n\t * is treated like the last added range and is used to set {@link #anchor anchor} and {@link #focus focus}.\n\t * Accepts a flag describing in which way the selection is made.\n\t *\n\t * @param newRanges Iterable object of ranges to set.\n\t * @param isLastBackward Flag describing if last added range was selected forward - from start to end\n\t * (`false`) or backward - from end to start (`true`). Defaults to `false`.\n\t */\n\tprivate _setRanges( newRanges: Iterable<Range>, isLastBackward: boolean = false ) {\n\t\t// New ranges should be copied to prevent removing them by setting them to `[]` first.\n\t\t// Only applies to situations when selection is set to the same selection or same selection's ranges.\n\t\tnewRanges = Array.from( newRanges );\n\n\t\tthis._ranges = [];\n\n\t\tfor ( const range of newRanges ) {\n\t\t\tthis._addRange( range );\n\t\t}\n\n\t\tthis._lastRangeBackward = !!isLastBackward;\n\t}\n\n\t/**\n\t * Sets this selection instance to be marked as `fake`. A fake selection does not render as browser native selection\n\t * over selected elements and is hidden to the user. This way, no native selection UI artifacts are displayed to\n\t * the user and selection over elements can be represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM (and be\n\t * properly handled by screen readers).\n\t */\n\tprivate _setFakeOptions( options: SelectionOptions = {} ) {\n\t\tthis._isFake = !!options.fake;\n\t\tthis._fakeSelectionLabel = options.fake ? options.label || '' : '';\n\t}\n\n\t/**\n\t * Adds a range to the selection. Added range is copied. This means that passed range is not saved in the\n\t * selection instance and you can safely operate on it.\n\t *\n\t * Accepts a flag describing in which way the selection is made - passed range might be selected from\n\t * {@link module:engine/view/range~Range#start start} to {@link module:engine/view/range~Range#end end}\n\t * or from {@link module:engine/view/range~Range#end end} to {@link module:engine/view/range~Range#start start}.\n\t * The flag is used to set {@link #anchor anchor} and {@link #focus focus} properties.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-selection-range-intersects` if added range intersects\n\t * with ranges already stored in Selection instance.\n\t */\n\tprivate _addRange( range: Range, isBackward: boolean = false ): void {\n\t\tif ( !( range instanceof Range ) ) {\n\t\t\t/**\n\t\t\t * Selection range set to an object that is not an instance of {@link module:engine/view/range~Range}.\n\t\t\t *\n\t\t\t * @error view-selection-add-range-not-range\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-selection-add-range-not-range',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tthis._pushRange( range );\n\t\tthis._lastRangeBackward = !!isBackward;\n\t}\n\n\t/**\n\t * Adds range to selection - creates copy of given range so it can be safely used and modified.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-selection-range-intersects` if added range intersects\n\t * with ranges already stored in selection instance.\n\t */\n\tprivate _pushRange( range: Range ): void {\n\t\tfor ( const storedRange of this._ranges ) {\n\t\t\tif ( range.isIntersecting( storedRange ) ) {\n\t\t\t\t/**\n\t\t\t\t * Trying to add a range that intersects with another range from selection.\n\t\t\t\t *\n\t\t\t\t * @error view-selection-range-intersects\n\t\t\t\t * @param {module:engine/view/range~Range} addedRange Range that was added to the selection.\n\t\t\t\t * @param {module:engine/view/range~Range} intersectingRange Range from selection that intersects with `addedRange`.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'view-selection-range-intersects',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ addedRange: range, intersectingRange: storedRange }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\n\t\tthis._ranges.push( new Range( range.start, range.end ) );\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' || type === 'view:selection';\n};\n\n/**\n * Additional options for {@link ~Selection}.\n */\nexport interface SelectionOptions {\n\n\t/**\n\t * Sets this selection instance to be backward.\n\t */\n\tbackward?: boolean;\n\n\t/**\n\t * Sets this selection instance to be marked as `fake`.\n\t */\n\tfake?: boolean;\n\n\t/**\n\t * Label for the fake selection.\n\t */\n\tlabel?: string;\n}\n\n/**\n * The place or offset of the selection.\n */\nexport type PlaceOrOffset = number | 'before' | 'end' | 'after' | 'on' | 'in';\n\n/**\n * Fired whenever selection ranges are changed through {@link ~Selection Selection API}.\n *\n * @eventName ~Selection#change\n */\nexport type ViewSelectionChangeEvent = {\n\tname: 'change';\n\targs: [];\n};\n\n/**\n * An entity that is used to set selection.\n *\n * See also {@link module:engine/view/selection~Selection#setTo}\n */\nexport type Selectable = Selection | DocumentSelection | Position | Iterable<Range> | Range | Node | null;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/documentselection\n */\n\nimport TypeCheckable from './typecheckable';\nimport Selection, {\n\ttype PlaceOrOffset,\n\ttype Selectable,\n\ttype SelectionOptions,\n\ttype ViewSelectionChangeEvent\n} from './selection';\n\nimport { EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type EditableElement from './editableelement';\nimport type Element from './element';\nimport type Node from './node';\nimport type Item from './item';\nimport type { default as Position, PositionOffset } from './position';\nimport type Range from './range';\n\n/**\n * Class representing the document selection in the view.\n *\n * Its instance is available in {@link module:engine/view/document~Document#selection `Document#selection`}.\n *\n * It is similar to {@link module:engine/view/selection~Selection} but\n * it has a read-only API and can be modified only by the writer available in\n * the {@link module:engine/view/view~View#change `View#change()`} block\n * (so via {@link module:engine/view/downcastwriter~DowncastWriter#setSelection `DowncastWriter#setSelection()`}).\n */\nexport default class DocumentSelection extends EmitterMixin( TypeCheckable ) {\n\t/**\n\t * Selection is used internally (`DocumentSelection` is a proxy to that selection).\n\t */\n\tprivate readonly _selection: Selection;\n\n\t/**\n\t * Creates new DocumentSelection instance.\n\t *\n\t * ```ts\n\t * // Creates collapsed selection at the position of given item and offset.\n\t * const paragraph = writer.createContainerElement( 'paragraph' );\n\t * const selection = new DocumentSelection( paragraph, offset );\n\t *\n\t * // Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t * // first child of that element and ends after the last child of that element.\n\t * const selection = new DocumentSelection( paragraph, 'in' );\n\t *\n\t * // Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t * // just after the item.\n\t * const selection = new DocumentSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = new DocumentSelection( element, 'in', { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = new DocumentSelection( element, 'in', { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #constructor:SELECTABLE `constructor( selectable, options )`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic constructor( selectable: Node, placeOrOffset: PlaceOrOffset, options?: SelectionOptions );\n\n\t/**\n\t * Creates new DocumentSelection instance.\n\t *\n\t * ```ts\n\t * // Creates empty selection without ranges.\n\t * const selection = new DocumentSelection();\n\t *\n\t * // Creates selection at the given range.\n\t * const range = writer.createRange( start, end );\n\t * const selection = new DocumentSelection( range );\n\t *\n\t * // Creates selection at the given ranges\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( start2, end2 ) ];\n\t * const selection = new DocumentSelection( ranges );\n\t *\n\t * // Creates selection from the other selection.\n\t * const otherSelection = writer.createSelection();\n\t * const selection = new DocumentSelection( otherSelection );\n\t *\n\t * // Creates selection at the given position.\n\t * const position = writer.createPositionAt( root, offset );\n\t * const selection = new DocumentSelection( position );\n\t * ```\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = new DocumentSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = new DocumentSelection( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #constructor:NODE_OFFSET `constructor( node, placeOrOffset, options )`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic constructor( selectable?: Exclude<Selectable, Node>, options?: SelectionOptions );\n\n\tconstructor( ...args: ConstructorParameters<typeof Selection> ) {\n\t\tsuper();\n\n\t\tthis._selection = new Selection();\n\n\t\t// Delegate change event to be fired on DocumentSelection instance.\n\t\tthis._selection.delegate( 'change' ).to( this );\n\n\t\t// Set selection data.\n\t\tif ( args.length ) {\n\t\t\tthis._selection.setTo( ...args );\n\t\t}\n\t}\n\n\t/**\n\t * Returns true if selection instance is marked as `fake`.\n\t *\n\t * @see #_setTo\n\t */\n\tpublic get isFake(): boolean {\n\t\treturn this._selection.isFake;\n\t}\n\n\t/**\n\t * Returns fake selection label.\n\t *\n\t * @see #_setTo\n\t */\n\tpublic get fakeSelectionLabel(): string {\n\t\treturn this._selection.fakeSelectionLabel;\n\t}\n\n\t/**\n\t * Selection anchor. Anchor may be described as a position where the selection starts. Together with\n\t * {@link #focus focus} they define the direction of selection, which is important\n\t * when expanding/shrinking selection. Anchor is always the start or end of the most recent added range.\n\t * It may be a bit unintuitive when there are multiple ranges in selection.\n\t *\n\t * @see #focus\n\t */\n\tpublic get anchor(): Position | null {\n\t\treturn this._selection.anchor;\n\t}\n\n\t/**\n\t * Selection focus. Focus is a position where the selection ends.\n\t *\n\t * @see #anchor\n\t */\n\tpublic get focus(): Position | null {\n\t\treturn this._selection.focus;\n\t}\n\n\t/**\n\t * Returns whether the selection is collapsed. Selection is collapsed when there is exactly one range which is\n\t * collapsed.\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this._selection.isCollapsed;\n\t}\n\n\t/**\n\t * Returns number of ranges in selection.\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._selection.rangeCount;\n\t}\n\n\t/**\n\t * Specifies whether the {@link #focus} precedes {@link #anchor}.\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn this._selection.isBackward;\n\t}\n\n\t/**\n\t * {@link module:engine/view/editableelement~EditableElement EditableElement} instance that contains this selection, or `null`\n\t * if the selection is not inside an editable element.\n\t */\n\tpublic get editableElement(): EditableElement | null {\n\t\treturn this._selection.editableElement;\n\t}\n\n\t/**\n\t * Used for the compatibility with the {@link module:engine/view/selection~Selection#isEqual} method.\n\t *\n\t * @internal\n\t */\n\tpublic get _ranges(): Array<Range> {\n\t\treturn ( this._selection as any )._ranges;\n\t}\n\n\t/**\n\t * Returns an iterable that contains copies of all ranges added to the selection.\n\t */\n\tpublic* getRanges(): IterableIterator<Range> {\n\t\tyield* this._selection.getRanges();\n\t}\n\n\t/**\n\t * Returns copy of the first range in the selection. First range is the one which\n\t * {@link module:engine/view/range~Range#start start} position {@link module:engine/view/position~Position#isBefore is before} start\n\t * position of all other ranges (not to confuse with the first range added to the selection).\n\t * Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\treturn this._selection.getFirstRange();\n\t}\n\n\t/**\n\t * Returns copy of the last range in the selection. Last range is the one which {@link module:engine/view/range~Range#end end}\n\t * position {@link module:engine/view/position~Position#isAfter is after} end position of all other ranges (not to confuse\n\t * with the last range added to the selection). Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getLastRange(): Range | null {\n\t\treturn this._selection.getLastRange();\n\t}\n\n\t/**\n\t * Returns copy of the first position in the selection. First position is the position that\n\t * {@link module:engine/view/position~Position#isBefore is before} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\treturn this._selection.getFirstPosition();\n\t}\n\n\t/**\n\t * Returns copy of the last position in the selection. Last position is the position that\n\t * {@link module:engine/view/position~Position#isAfter is after} any other position in the selection ranges.\n\t * Returns `null` if no ranges are added to selection.\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\treturn this._selection.getLastPosition();\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/view/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\treturn this._selection.getSelectedElement();\n\t}\n\n\t/**\n\t * Checks whether, this selection is equal to given selection. Selections are equal if they have same directions,\n\t * same number of ranges and all ranges from one selection equal to a range from other selection.\n\t *\n\t * @param otherSelection Selection to compare with.\n\t * @returns `true` if selections are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherSelection: Selection | DocumentSelection ): boolean {\n\t\treturn this._selection.isEqual( otherSelection );\n\t}\n\n\t/**\n\t * Checks whether this selection is similar to given selection. Selections are similar if they have same directions, same\n\t * number of ranges, and all {@link module:engine/view/range~Range#getTrimmed trimmed} ranges from one selection are\n\t * equal to any trimmed range from other selection.\n\t *\n\t * @param otherSelection Selection to compare with.\n\t * @returns `true` if selections are similar, `false` otherwise.\n\t */\n\tpublic isSimilar( otherSelection: Selection | DocumentSelection ): boolean {\n\t\treturn this._selection.isSimilar( otherSelection );\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/view/selection~Selectable selectable}.\n\t *\n\t * ```ts\n\t * // Sets selection to the given range.\n\t * const range = writer.createRange( start, end );\n\t * documentSelection._setTo( range );\n\t *\n\t * // Sets selection to given ranges.\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( start2, end2 ) ];\n\t * documentSelection._setTo( range );\n\t *\n\t * // Sets selection to the other selection.\n\t * const otherSelection = writer.createSelection();\n\t * documentSelection._setTo( otherSelection );\n\t *\n\t * // Sets collapsed selection at the given position.\n\t * const position = writer.createPositionAt( root, offset );\n\t * documentSelection._setTo( position );\n\t *\n\t * // Sets collapsed selection at the position of given item and offset.\n\t * documentSelection._setTo( paragraph, offset );\n\t * ```\n\t *\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * ```ts\n\t * documentSelection._setTo( paragraph, 'in' );\n\t * ```\n\t *\n\t * Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t * ```ts\n\t * documentSelection._setTo( paragraph, 'on' );\n\t *\n\t * // Clears selection. Removes all ranges.\n\t * documentSelection._setTo( null );\n\t * ```\n\t *\n\t * `Selection#_setTo()` method allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Sets selection as backward.\n\t * documentSelection._setTo( range, { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to des cribe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * documentSelection._setTo( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * @internal\n\t * @fires change\n\t */\n\tpublic _setTo( ...args: Parameters<Selection[ 'setTo' ]> ): void {\n\t\tthis._selection.setTo( ...args );\n\t}\n\n\t/**\n\t * Moves {@link #focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as {@link module:engine/view/view~View#createPositionAt view.createPositionAt()}\n\t * parameters.\n\t *\n\t * @internal\n\t * @fires change\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic _setFocus( itemOrPosition: Item | Position, offset?: PositionOffset ): void {\n\t\tthis._selection.setFocus( itemOrPosition, offset );\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nDocumentSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' ||\n\t\ttype == 'documentSelection' ||\n\t\ttype == 'view:selection' ||\n\t\ttype == 'view:documentSelection';\n};\n\n/**\n * Fired whenever selection ranges are changed through {@link ~DocumentSelection Selection API}.\n *\n * @eventName ~DocumentSelection#change\n */\nexport type ViewDocumentSelectionChangeEvent = ViewSelectionChangeEvent;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/bubblingeventinfo\n */\n\nimport { EventInfo } from '@ckeditor/ckeditor5-utils';\nimport type Document from '../document';\nimport type Node from '../node';\nimport type Range from '../range';\n\n/**\n * The event object passed to bubbling event callbacks. It is used to provide information about the event as well as a tool to\n * manipulate it.\n */\nexport default class BubblingEventInfo<TName extends string = string, TReturn = unknown> extends EventInfo<TName, TReturn> {\n\t/**\n\t * The view range that the bubbling should start from.\n\t */\n\tpublic readonly startRange: Range;\n\n\t/**\n\t * The current event phase.\n\t */\n\tprivate _eventPhase: EventPhase;\n\n\t/**\n\t * The current bubbling target.\n\t */\n\tprivate _currentTarget: Document | Node | null;\n\n\t/**\n\t * @param source The emitter.\n\t * @param name The event name.\n\t * @param startRange The view range that the bubbling should start from.\n\t */\n\tconstructor( source: object, name: TName, startRange: Range ) {\n\t\tsuper( source, name );\n\n\t\tthis.startRange = startRange;\n\t\tthis._eventPhase = 'none';\n\t\tthis._currentTarget = null;\n\t}\n\n\t/**\n\t * The current event phase.\n\t */\n\tpublic get eventPhase(): EventPhase {\n\t\treturn this._eventPhase;\n\t}\n\n\t/**\n\t * The current bubbling target.\n\t */\n\tpublic get currentTarget(): Document | Node | null {\n\t\treturn this._currentTarget;\n\t}\n}\n\n/**\n * The phase the event is in.\n */\nexport type EventPhase = 'none' | 'capturing' | 'atTarget' | 'bubbling';\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/bubblingemittermixin\n */\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tEventInfo,\n\ttoArray,\n\ttype ArrayOrItem,\n\ttype Emitter,\n\ttype GetEventInfo,\n\ttype GetNameOrEventInfo,\n\ttype BaseEvent,\n\ttype CallbackOptions,\n\ttype Constructor,\n\ttype Mixed\n} from '@ckeditor/ckeditor5-utils';\n\nimport BubblingEventInfo, { type EventPhase } from './bubblingeventinfo';\nimport type Document from '../document';\nimport type Node from '../node';\nimport type Range from '../range';\nimport type Element from '../element';\nimport type DocumentSelection from '../documentselection';\n\nconst contextsSymbol = Symbol( 'bubbling contexts' );\n\n/**\n * Bubbling emitter mixin for the view document as described in the {@link ~BubblingEmitter} interface.\n *\n * This function creates a class that inherits from the provided `base` and implements `Emitter` interface.\n * The base class must implement {@link module:utils/emittermixin~Emitter} interface.\n *\n * ```ts\n * class BaseClass extends EmitterMixin() {\n * \t// ...\n * }\n *\n * class MyClass extends BubblingEmitterMixin( BaseClass ) {\n * \t// This class derives from `BaseClass` and implements the `BubblingEmitter` interface.\n * }\n * ```\n */\nexport default function BubblingEmitterMixin<Base extends Constructor<Emitter>>( base: Base ): Mixed<Base, BubblingEmitter> {\n\tabstract class Mixin extends base implements BubblingEmitter {\n\t\tpublic abstract get selection(): DocumentSelection;\n\n\t\tpublic override fire<TEvent extends BaseEvent>(\n\t\t\teventOrInfo: GetNameOrEventInfo<TEvent>,\n\t\t\t...eventArgs: TEvent[ 'args' ]\n\t\t): GetEventInfo<TEvent>[ 'return' ] {\n\t\t\ttry {\n\t\t\t\tconst eventInfo = eventOrInfo instanceof EventInfo ? eventOrInfo : new EventInfo( this, eventOrInfo );\n\t\t\t\tconst eventContexts = getBubblingContexts( this );\n\n\t\t\t\tif ( !eventContexts.size ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tupdateEventInfo( eventInfo, 'capturing', this );\n\n\t\t\t\t// The capture phase of the event.\n\t\t\t\tif ( fireListenerFor( eventContexts, '$capture', eventInfo, ...eventArgs ) ) {\n\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t}\n\n\t\t\t\tconst startRange = ( eventInfo as BubblingEventInfo ).startRange || this.selection.getFirstRange();\n\t\t\t\tconst selectedElement = startRange ? startRange.getContainedElement() : null;\n\t\t\t\tconst isCustomContext = selectedElement ? Boolean( getCustomContext( eventContexts, selectedElement ) ) : false;\n\n\t\t\t\tlet node: Node | null = selectedElement || getDeeperRangeParent( startRange );\n\n\t\t\t\tupdateEventInfo( eventInfo, 'atTarget', node );\n\n\t\t\t\t// For the not yet bubbling event trigger for $text node if selection can be there and it's not a custom context selected.\n\t\t\t\tif ( !isCustomContext ) {\n\t\t\t\t\tif ( fireListenerFor( eventContexts, '$text', eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t}\n\n\t\t\t\t\tupdateEventInfo( eventInfo, 'bubbling', node );\n\t\t\t\t}\n\n\t\t\t\twhile ( node ) {\n\t\t\t\t\t// Root node handling.\n\t\t\t\t\tif ( node.is( 'rootElement' ) ) {\n\t\t\t\t\t\tif ( fireListenerFor( eventContexts, '$root', eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Element node handling.\n\t\t\t\t\telse if ( node.is( 'element' ) ) {\n\t\t\t\t\t\tif ( fireListenerFor( eventContexts, node.name, eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Check custom contexts (i.e., a widget).\n\t\t\t\t\tif ( fireListenerFor( eventContexts, node, eventInfo, ...eventArgs ) ) {\n\t\t\t\t\t\treturn eventInfo.return;\n\t\t\t\t\t}\n\n\t\t\t\t\tnode = node.parent as Node;\n\n\t\t\t\t\tupdateEventInfo( eventInfo, 'bubbling', node );\n\t\t\t\t}\n\n\t\t\t\tupdateEventInfo( eventInfo, 'bubbling', this );\n\n\t\t\t\t// Document context.\n\t\t\t\tfireListenerFor( eventContexts, '$document', eventInfo, ...eventArgs );\n\n\t\t\t\treturn eventInfo.return;\n\t\t\t} catch ( err: any ) {\n\t\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t\t/* istanbul ignore next -- @preserve */\n\t\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t\t}\n\t\t}\n\n\t\tpublic _addEventListener(\n\t\t\tthis: Document,\n\t\t\tevent: string,\n\t\t\tcallback: ( ev: EventInfo, ...args: Array<any> ) => void,\n\t\t\toptions: BubblingCallbackOptions\n\t\t) {\n\t\t\tconst contexts = toArray( options.context || '$document' );\n\t\t\tconst eventContexts = getBubblingContexts( this );\n\n\t\t\tfor ( const context of contexts ) {\n\t\t\t\tlet emitter = eventContexts.get( context );\n\n\t\t\t\tif ( !emitter ) {\n\t\t\t\t\temitter = new ( EmitterMixin() )();\n\t\t\t\t\teventContexts.set( context, emitter! );\n\t\t\t\t}\n\n\t\t\t\tthis.listenTo( emitter!, event, callback, options );\n\t\t\t}\n\t\t}\n\n\t\tpublic _removeEventListener( this: Document, event: string, callback: Function ): void {\n\t\t\tconst eventContexts = getBubblingContexts( this );\n\n\t\t\tfor ( const emitter of eventContexts.values() ) {\n\t\t\t\tthis.stopListening( emitter, event, callback );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn Mixin as any;\n}\n\n// Backward compatibility with `mix`.\n{\n\tconst mixin = ( BubblingEmitterMixin as any )( Object );\n\n\t[ 'fire', '_addEventListener', '_removeEventListener' ].forEach( key => {\n\t\t( BubblingEmitterMixin as any )[ key ] = mixin.prototype[ key ];\n\t} );\n}\n\n/**\n * Update the event info bubbling fields.\n *\n * @param eventInfo The event info object to update.\n * @param eventPhase The current event phase.\n * @param currentTarget The current bubbling target.\n */\nfunction updateEventInfo(\n\teventInfo: EventInfo,\n\teventPhase: EventPhase,\n\tcurrentTarget: unknown\n) {\n\tif ( eventInfo instanceof BubblingEventInfo ) {\n\t\t( eventInfo as any )._eventPhase = eventPhase;\n\t\t( eventInfo as any )._currentTarget = currentTarget;\n\t}\n}\n\n/**\n * Fires the listener for the specified context. Returns `true` if event was stopped.\n *\n * @param eventInfo The `EventInfo` object.\n * @param eventArgs Additional arguments to be passed to the callbacks.\n * @returns True if event stop was called.\n */\nfunction fireListenerFor(\n\teventContexts: BubblingEventContexts,\n\tcontext: string | Node,\n\teventInfo: EventInfo,\n\t...eventArgs: Array<unknown>\n) {\n\tconst emitter = typeof context == 'string' ? eventContexts.get( context ) : getCustomContext( eventContexts, context );\n\n\tif ( !emitter ) {\n\t\treturn false;\n\t}\n\n\temitter.fire( eventInfo, ...eventArgs );\n\n\treturn eventInfo.stop.called;\n}\n\n/**\n * Returns an emitter for a specified view node.\n */\nfunction getCustomContext( eventContexts: BubblingEventContexts, node: Node ): Emitter | null {\n\tfor ( const [ context, emitter ] of eventContexts ) {\n\t\tif ( typeof context == 'function' && context( node ) ) {\n\t\t\treturn emitter;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns bubbling contexts map for the source (emitter).\n */\nfunction getBubblingContexts( source: { [ x: string ]: any; [ contextsSymbol ]?: BubblingEventContexts } ) {\n\tif ( !source[ contextsSymbol ] ) {\n\t\tsource[ contextsSymbol ] = new Map();\n\t}\n\n\treturn source[ contextsSymbol ];\n}\n\n/**\n * Returns the deeper parent element for the range.\n */\nfunction getDeeperRangeParent( range: Range ): Node | null {\n\tif ( !range ) {\n\t\treturn null;\n\t}\n\n\tconst startParent = range.start.parent as Element;\n\tconst endParent = range.end.parent as Element;\n\n\tconst startPath = startParent.getPath();\n\tconst endPath = endParent.getPath();\n\n\treturn startPath.length > endPath.length ? startParent : endParent;\n}\n\n/**\n * Bubbling emitter for the view document.\n *\n * Bubbling emitter is triggering events in the context of specified {@link module:engine/view/element~Element view element} name,\n * predefined `'$text'`, `'$root'`, `'$document'` and `'$capture'` contexts, and context matchers provided as a function.\n *\n * Before bubbling starts, listeners for `'$capture'` context are triggered. Then the bubbling starts from the deeper selection\n * position (by firing event on the `'$text'` context) and propagates the view document tree up to the `'$root'` and finally\n * the listeners at `'$document'` context are fired (this is the default context).\n *\n * Examples:\n *\n * ```ts\n * // Listeners registered in the context of the view element names:\n * this.listenTo( viewDocument, 'enter', ( evt, data ) => {\n * \t// ...\n * }, { context: 'blockquote' } );\n *\n * this.listenTo( viewDocument, 'enter', ( evt, data ) => {\n * \t// ...\n * }, { context: 'li' } );\n *\n * // Listeners registered in the context of the '$text' and '$root' nodes.\n * this.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n * \t// ...\n * }, { context: '$text', priority: 'high' } );\n *\n * this.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n * \t// ...\n * }, { context: '$root' } );\n *\n * // Listeners registered in the context of custom callback function.\n * this.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n * \t// ...\n * }, { context: isWidget } );\n *\n * this.listenTo( view.document, 'arrowKey', ( evt, data ) => {\n * \t// ...\n * }, { context: isWidget, priority: 'high' } );\n * ```\n *\n * Example flow for selection in text:\n *\n * ```xml\n * <blockquote><p>Foo[]bar</p></blockquote>\n * ```\n *\n * Fired events on contexts:\n * 1. `'$capture'`\n * 2. `'$text'`\n * 3. `'p'`\n * 4. `'blockquote'`\n * 5. `'$root'`\n * 6. `'$document'`\n *\n * Example flow for selection on element (i.e., Widget):\n *\n * ```xml\n * <blockquote><p>Foo[<widget/>]bar</p></blockquote>\n * ```\n *\n * Fired events on contexts:\n * 1. `'$capture'`\n * 2. *widget* (custom matcher)\n * 3. `'p'`\n * 4. `'blockquote'`\n * 5. `'$root'`\n * 6. `'$document'`\n *\n * There could be multiple listeners registered for the same context and at different priority levels:\n *\n * ```html\n * <p>Foo[]bar</p>\n * ```\n *\n * 1. `'$capture'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 2. `'$text'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 3. `'p'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 4. `'$root'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n * 5. `'$document'` at priorities:\n *    1. `'highest'`\n *    2. `'high'`\n *    3. `'normal'`\n *    4. `'low'`\n *    5. `'lowest'`\n */\nexport type BubblingEmitter = Emitter;\n\n/**\n * A context matcher function.\n *\n * Should return true for nodes that that match the custom context.\n */\nexport type BubblingEventContextFunction = ( node: Node ) => boolean;\n\n/**\n * Helper type that allows describing bubbling event. Extends `TEvent` so that:\n *\n * * the event is called with {@link module:engine/view/observer/bubblingeventinfo~BubblingEventInfo}`\n * instead of {@link module:utils/eventinfo~EventInfo}, and\n * * {@link ~BubblingCallbackOptions} can be specified as additional options.\n *\n * @typeParam TEvent The event description to extend.\n */\nexport type BubblingEvent<TEvent extends BaseEvent> = TEvent & {\n\teventInfo: BubblingEventInfo<TEvent[ 'name' ], ( TEvent extends { return: infer TReturn } ? TReturn : unknown )>;\n\tcallbackOptions: BubblingCallbackOptions;\n};\n\n/**\n * Additional options for registering a callback.\n */\nexport interface BubblingCallbackOptions extends CallbackOptions {\n\n\t/**\n\t * Specifies the context in which the event should be triggered to call the callback.\n\t *\n\t * @see ~BubblingEmitter\n\t */\n\tcontext?: ArrayOrItem<string | BubblingEventContextFunction>;\n}\n\ntype BubblingEventContexts = Map<string | BubblingEventContextFunction, Emitter>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/document\n */\n\nimport DocumentSelection from './documentselection';\nimport BubblingEmitterMixin from './observer/bubblingemittermixin';\n\nimport { Collection, ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type { StylesProcessor } from './stylesmap';\nimport type RootEditableElement from './rooteditableelement';\nimport type DowncastWriter from './downcastwriter';\n\n// @if CK_DEBUG_ENGINE // const { logDocument } = require( '../dev-utils/utils' );\n\n/**\n * Document class creates an abstract layer over the content editable area, contains a tree of view elements and\n * {@link module:engine/view/documentselection~DocumentSelection view selection} associated with this document.\n */\nexport default class Document extends BubblingEmitterMixin( ObservableMixin() ) {\n\t/**\n\t * Selection done on this document.\n\t */\n\tpublic readonly selection: DocumentSelection;\n\n\t/**\n\t * Roots of the view tree. Collection of the {@link module:engine/view/element~Element view elements}.\n\t *\n\t * View roots are created as a result of binding between {@link module:engine/view/document~Document#roots} and\n\t * {@link module:engine/model/document~Document#roots} and this is handled by\n\t * {@link module:engine/controller/editingcontroller~EditingController}, so to create view root we need to create\n\t * model root using {@link module:engine/model/document~Document#createRoot}.\n\t */\n\tpublic readonly roots: Collection<RootEditableElement>;\n\n\t/**\n\t * The styles processor instance used by this document when normalizing styles.\n\t */\n\tpublic readonly stylesProcessor: StylesProcessor;\n\n\t/**\n\t * Defines whether document is in read-only mode.\n\t *\n\t * When document is read-ony then all roots are read-only as well and caret placed inside this root is hidden.\n\t *\n\t * @observable\n\t */\n\tdeclare public isReadOnly: boolean;\n\n\t/**\n\t * True if document is focused.\n\t *\n\t * This property is updated by the {@link module:engine/view/observer/focusobserver~FocusObserver}.\n\t * If the {@link module:engine/view/observer/focusobserver~FocusObserver} is disabled this property will not change.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * `true` while the user is making a selection in the document (e.g. holding the mouse button and moving the cursor).\n\t * When they stop selecting, the property goes back to `false`.\n\t *\n\t * This property is updated by the {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isSelecting: boolean;\n\n\t/**\n\t * True if composition is in progress inside the document.\n\t *\n\t * This property is updated by the {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n\t * If the {@link module:engine/view/observer/compositionobserver~CompositionObserver} is disabled this property will not change.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isComposing: boolean;\n\n\t/**\n\t * Post-fixer callbacks registered to the view document.\n\t */\n\tprivate readonly _postFixers = new Set<ViewDocumentPostFixer>();\n\n\t/**\n\t * Creates a Document instance.\n\t *\n\t * @param stylesProcessor The styles processor instance.\n\t */\n\tconstructor( stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\tthis.selection = new DocumentSelection();\n\t\tthis.roots = new Collection( { idProperty: 'rootName' } );\n\t\tthis.stylesProcessor = stylesProcessor;\n\n\t\tthis.set( 'isReadOnly', false );\n\t\tthis.set( 'isFocused', false );\n\t\tthis.set( 'isSelecting', false );\n\t\tthis.set( 'isComposing', false );\n\t}\n\n\t/**\n\t * Gets a {@link module:engine/view/document~Document#roots view root element} with the specified name. If the name is not\n\t * specific \"main\" root is returned.\n\t *\n\t * @param name Name of the root.\n\t * @returns The view root element with the specified name or null when there is no root of given name.\n\t */\n\tpublic getRoot( name: string = 'main' ): RootEditableElement | null {\n\t\treturn this.roots.get( name );\n\t}\n\n\t/**\n\t * Allows registering post-fixer callbacks. A post-fixers mechanism allows to update the view tree just before it is rendered\n\t * to the DOM.\n\t *\n\t * Post-fixers are executed right after all changes from the outermost change block were applied but\n\t * before the {@link module:engine/view/view~View#event:render render event} is fired. If a post-fixer callback made\n\t * a change, it should return `true`. When this happens, all post-fixers are fired again to check if something else should\n\t * not be fixed in the new document tree state.\n\t *\n\t * View post-fixers are useful when you want to apply some fixes whenever the view structure changes. Keep in mind that\n\t * changes executed in a view post-fixer should not break model-view mapping.\n\t *\n\t * The types of changes which should be safe:\n\t *\n\t * * adding or removing attribute from elements,\n\t * * changes inside of {@link module:engine/view/uielement~UIElement UI elements},\n\t * * {@link module:engine/controller/editingcontroller~EditingController#reconvertItem marking some of the model elements to be\n\t * re-converted}.\n\t *\n\t * Try to avoid changes which touch view structure:\n\t *\n\t * * you should not add or remove nor wrap or unwrap any view elements,\n\t * * you should not change the editor data model in a view post-fixer.\n\t *\n\t * As a parameter, a post-fixer callback receives a {@link module:engine/view/downcastwriter~DowncastWriter downcast writer}.\n\t *\n\t * Typically, a post-fixer will look like this:\n\t *\n\t * ```ts\n\t * editor.editing.view.document.registerPostFixer( writer => {\n\t * \tif ( checkSomeCondition() ) {\n\t * \t\twriter.doSomething();\n\t *\n\t * \t\t// Let other post-fixers know that something changed.\n\t * \t\treturn true;\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * Note that nothing happens right after you register a post-fixer (e.g. execute such a code in the console).\n\t * That is because adding a post-fixer does not execute it.\n\t * The post-fixer will be executed as soon as any change in the document needs to cause its rendering.\n\t * If you want to re-render the editor's view after registering the post-fixer then you should do it manually by calling\n\t * {@link module:engine/view/view~View#forceRender `view.forceRender()`}.\n\t *\n\t * If you need to register a callback which is executed when DOM elements are already updated,\n\t * use {@link module:engine/view/view~View#event:render render event}.\n\t */\n\tpublic registerPostFixer( postFixer: ViewDocumentPostFixer ): void {\n\t\tthis._postFixers.add( postFixer );\n\t}\n\n\t/**\n\t * Destroys this instance. Makes sure that all observers are destroyed and listeners removed.\n\t */\n\tpublic destroy(): void {\n\t\tthis.roots.map( root => root.destroy() );\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Performs post-fixer loops. Executes post-fixer callbacks as long as none of them has done any changes to the model.\n\t *\n\t * @internal\n\t */\n\tpublic _callPostFixers( writer: DowncastWriter ): void {\n\t\tlet wasFixed = false;\n\n\t\tdo {\n\t\t\tfor ( const callback of this._postFixers ) {\n\t\t\t\twasFixed = callback( writer );\n\n\t\t\t\tif ( wasFixed ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} while ( wasFixed );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public log( version: any ): void {\n\t// @if CK_DEBUG_ENGINE // \tlogDocument( this, version );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Document PostFixer.\n *\n * @see module:engine/view/document~Document#registerPostFixer\n */\nexport type ViewDocumentPostFixer = ( writer: DowncastWriter ) => boolean;\n\n/**\n * Enum representing type of the change.\n *\n * Possible values:\n *\n * * `children` - for child list changes,\n * * `attributes` - for element attributes changes,\n * * `text` - for text nodes changes.\n *\n * @typedef {String} module:engine/view/document~ChangeType\n */\nexport type ChangeType = 'children' | 'attributes' | 'text';\n\n/**\n * Event fired whenever document content layout changes. It is fired whenever content is\n * {@link module:engine/view/view~View#event:render rendered}, but should be also fired by observers in case of\n * other actions which may change layout, for instance when image loads.\n *\n * @eventName ~Document#layoutChanged\n */\nexport type ViewDocumentLayoutChangedEvent = {\n\tname: 'layoutChanged';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/attributeelement\n */\n\nimport Element, { type ElementAttributes } from './element';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type DocumentFragment from './documentfragment';\nimport type Document from './document';\nimport type Node from './node';\n\n// Default attribute priority.\nconst DEFAULT_PRIORITY = 10;\n\n/**\n * Attribute elements are used to represent formatting elements in the view (think – `<b>`, `<span style=\"font-size: 2em\">`, etc.).\n * Most often they are created when downcasting model text attributes.\n *\n * Editing engine does not define a fixed HTML DTD. This is why a feature developer needs to choose between various\n * types (container element, {@link module:engine/view/attributeelement~AttributeElement attribute element},\n * {@link module:engine/view/emptyelement~EmptyElement empty element}, etc) when developing a feature.\n *\n * To create a new attribute element instance use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement `DowncastWriter#createAttributeElement()`} method.\n */\nexport default class AttributeElement extends Element {\n\tpublic static readonly DEFAULT_PRIORITY: number = DEFAULT_PRIORITY;\n\n\t/**\n\t * Element priority. Decides in what order elements are wrapped by {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t *\n\t * @internal\n\t * @readonly\n\t */\n\tpublic _priority: number = DEFAULT_PRIORITY;\n\n\t/**\n\t * Element identifier. If set, it is used by {@link module:engine/view/element~Element#isSimilar},\n\t * and then two elements are considered similar if, and only if they have the same `_id`.\n\t *\n\t * @internal\n\t * @readonly\n\t */\n\tpublic _id: string | number | null = null;\n\n\t/**\n\t * Keeps all the attribute elements that have the same {@link module:engine/view/attributeelement~AttributeElement#id ids}\n\t * and still exist in the view tree.\n\t *\n\t * This property is managed by {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t */\n\tprivate readonly _clonesGroup: Set<AttributeElement> | null = null;\n\n\t/**\n\t * Creates an attribute element.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createAttributeElement\n\t * @see module:engine/view/element~Element\n\t * @protected\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattrs?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document, name, attrs, children );\n\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n\n\t/**\n\t * Element priority. Decides in what order elements are wrapped by {@link module:engine/view/downcastwriter~DowncastWriter}.\n\t */\n\tpublic get priority(): number {\n\t\treturn this._priority;\n\t}\n\n\t/**\n\t * Element identifier. If set, it is used by {@link module:engine/view/element~Element#isSimilar},\n\t * and then two elements are considered similar if, and only if they have the same `id`.\n\t */\n\tpublic get id(): string | number | null {\n\t\treturn this._id;\n\t}\n\n\t/**\n\t * Returns all {@link module:engine/view/attributeelement~AttributeElement attribute elements} that has the\n\t * same {@link module:engine/view/attributeelement~AttributeElement#id id} and are in the view tree (were not removed).\n\t *\n\t * Note: If this element has been removed from the tree, returned set will not include it.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError attribute-element-get-elements-with-same-id-no-id}\n\t * if this element has no `id`.\n\t *\n\t * @returns Set containing all the attribute elements\n\t * with the same `id` that were added and not removed from the view tree.\n\t */\n\tpublic getElementsWithSameId(): Set<AttributeElement> {\n\t\tif ( this.id === null ) {\n\t\t\t/**\n\t\t\t * Cannot get elements with the same id for an attribute element without id.\n\t\t\t *\n\t\t\t * @error attribute-element-get-elements-with-same-id-no-id\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'attribute-element-get-elements-with-same-id-no-id',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\treturn new Set( this._clonesGroup );\n\t}\n\n\t/**\n\t * Checks if this element is similar to other element.\n\t *\n\t * If none of elements has set {@link module:engine/view/attributeelement~AttributeElement#id}, then both elements\n\t * should have the same name, attributes and priority to be considered as similar. Two similar elements can contain\n\t * different set of children nodes.\n\t *\n\t * If at least one element has {@link module:engine/view/attributeelement~AttributeElement#id} set, then both\n\t * elements have to have the same {@link module:engine/view/attributeelement~AttributeElement#id} value to be\n\t * considered similar.\n\t *\n\t * Similarity is important for {@link module:engine/view/downcastwriter~DowncastWriter}. For example:\n\t *\n\t * * two following similar elements can be merged together into one, longer element,\n\t * * {@link module:engine/view/downcastwriter~DowncastWriter#unwrap} checks similarity of passed element and processed element to\n\t * decide whether processed element should be unwrapped,\n\t * * etc.\n\t */\n\tpublic override isSimilar( otherElement: Element ): boolean {\n\t\t// If any element has an `id` set, just compare the ids.\n\t\tif ( this.id !== null || ( otherElement as any ).id !== null ) {\n\t\t\treturn this.id === ( otherElement as any ).id;\n\t\t}\n\n\t\treturn super.isSimilar( otherElement ) && this.priority == ( otherElement as any ).priority;\n\t}\n\n\t/**\n\t * Clones provided element with priority.\n\t *\n\t * @internal\n\t * @param deep If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any children.\n\t * @returns Clone of this element.\n\t */\n\tpublic override _clone( deep: boolean = false ): this {\n\t\tconst cloned = super._clone( deep );\n\n\t\t// Clone priority too.\n\t\tcloned._priority = this._priority;\n\n\t\t// And id too.\n\t\tcloned._id = this._id;\n\n\t\treturn cloned;\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nAttributeElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'attributeElement' || type === 'view:attributeElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'attributeElement' || type === 'view:attributeElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n/**\n * Returns block {@link module:engine/view/filler~Filler filler} offset or `null` if block filler is not needed.\n *\n * @returns Block filler offset or `null` if block filler is not needed.\n */\nfunction getFillerOffset( this: AttributeElement ): number | null {\n\t// <b>foo</b> does not need filler.\n\tif ( nonUiChildrenCount( this ) ) {\n\t\treturn null;\n\t}\n\n\tlet element = this.parent;\n\n\t// <p><b></b></p> needs filler -> <p><b><br></b></p>\n\twhile ( element && element.is( 'attributeElement' ) ) {\n\t\tif ( nonUiChildrenCount( element ) > 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\telement = element.parent;\n\t}\n\n\tif ( !element || nonUiChildrenCount( element ) > 1 ) {\n\t\treturn null;\n\t}\n\n\t// Render block filler at the end of element (after all ui elements).\n\treturn this.childCount;\n}\n\n/**\n * Returns total count of children that are not {@link module:engine/view/uielement~UIElement UIElements}.\n */\nfunction nonUiChildrenCount( element: Element | DocumentFragment ): number {\n\treturn Array.from( element.getChildren() ).filter( element => !element.is( 'uiElement' ) ).length;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/emptyelement\n */\n\nimport Element, { type ElementAttributes } from './element';\nimport Node from './node';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from './document';\nimport type Item from './item';\n\n/**\n * Empty element class. It is used to represent elements that cannot contain any child nodes (for example `<img>` elements).\n *\n * To create a new empty element use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createEmptyElement `downcastWriter#createEmptyElement()`} method.\n */\nexport default class EmptyElement extends Element {\n\t/**\n\t * Creates new instance of EmptyElement.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-emptyelement-cannot-add` when third parameter is passed,\n\t * to inform that usage of EmptyElement is incorrect (adding child nodes to EmptyElement is forbidden).\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createEmptyElement\n\t * @internal\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document, name, attributes, children );\n\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n\n\t/**\n\t * Overrides {@link module:engine/view/element~Element#_insertChild} method.\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-emptyelement-cannot-add` to prevent\n\t * adding any child nodes to EmptyElement.\n\t *\n\t * @internal\n\t */\n\tpublic override _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tif ( items && ( items instanceof Node || Array.from( items as Iterable<Item> ).length > 0 ) ) {\n\t\t\t/**\n\t\t\t * Cannot add children to {@link module:engine/view/emptyelement~EmptyElement}.\n\t\t\t *\n\t\t\t * @error view-emptyelement-cannot-add\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-emptyelement-cannot-add',\n\t\t\t\t[ this, items ]\n\t\t\t);\n\t\t}\n\n\t\treturn 0;\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nEmptyElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'emptyElement' || type === 'view:emptyElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'emptyElement' || type === 'view:emptyElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n/**\n * Returns `null` because block filler is not needed for EmptyElements.\n */\nfunction getFillerOffset() {\n\treturn null;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/uielement\n */\n\nimport Element, { type ElementAttributes } from './element';\nimport Node from './node';\nimport { CKEditorError, keyCodes } from '@ckeditor/ckeditor5-utils';\n\nimport type View from './view';\nimport type Document from './document';\nimport type DomConverter from './domconverter';\nimport type Item from './item';\nimport type { ViewDocumentArrowKeyEvent } from './observer/arrowkeysobserver';\nimport type { KeyEventData } from './observer/keyobserver';\n\ntype DomDocument = globalThis.Document;\ntype DomElement = globalThis.HTMLElement;\n\n/**\n * UI element class. It should be used to represent editing UI which needs to be injected into the editing view\n * If possible, you should keep your UI outside the editing view. However, if that is not possible,\n * UI elements can be used.\n *\n * How a UI element is rendered is in your control (you pass a callback to\n * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `downcastWriter#createUIElement()`}).\n * The editor will ignore your UI element – the selection cannot be placed in it, it is skipped (invisible) when\n * the user modifies the selection by using arrow keys and the editor does not listen to any mutations which\n * happen inside your UI elements.\n *\n * The limitation is that you cannot convert a model element to a UI element. UI elements need to be\n * created for {@link module:engine/model/markercollection~Marker markers} or as additinal elements\n * inside normal {@link module:engine/view/containerelement~ContainerElement container elements}.\n *\n * To create a new UI element use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `downcastWriter#createUIElement()`} method.\n */\nexport default class UIElement extends Element {\n\t/**\n\t * Creates new instance of UIElement.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-uielement-cannot-add` when third parameter is passed,\n\t * to inform that usage of UIElement is incorrect (adding child nodes to UIElement is forbidden).\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createUIElement\n\t * @internal\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattrs?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document, name, attrs, children );\n\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n\n\t/**\n\t * Overrides {@link module:engine/view/element~Element#_insertChild} method.\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-uielement-cannot-add` to prevent adding any child nodes\n\t * to UIElement.\n\t *\n\t * @internal\n\t */\n\tpublic override _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tif ( items && ( items instanceof Node || Array.from( items as Iterable<Item> ).length > 0 ) ) {\n\t\t\t/**\n\t\t\t * Cannot add children to {@link module:engine/view/uielement~UIElement}.\n\t\t\t *\n\t\t\t * @error view-uielement-cannot-add\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-uielement-cannot-add', [ this, items ] );\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * Renders this {@link module:engine/view/uielement~UIElement} to DOM. This method is called by\n\t * {@link module:engine/view/domconverter~DomConverter}.\n\t * Do not use inheritance to create custom rendering method, replace `render()` method instead:\n\t *\n\t * ```ts\n\t * const myUIElement = downcastWriter.createUIElement( 'span' );\n\t * myUIElement.render = function( domDocument, domConverter ) {\n\t * \tconst domElement = this.toDomElement( domDocument );\n\t *\n\t * \tdomConverter.setContentOf( domElement, '<b>this is ui element</b>' );\n\t *\n\t * \treturn domElement;\n\t * };\n\t * ```\n\t *\n\t * If changes in your UI element should trigger some editor UI update you should call\n\t * the {@link module:ui/editorui/editorui~EditorUI#update `editor.ui.update()`} method\n\t * after rendering your UI element.\n\t *\n\t * @param domConverter Instance of the DomConverter used to optimize the output.\n\t */\n\tpublic render( domDocument: DomDocument, domConverter: DomConverter ): DomElement {\n\t\t// Provide basic, default output.\n\t\treturn this.toDomElement( domDocument );\n\t}\n\n\t/**\n\t * Creates DOM element based on this view UIElement.\n\t * Note that each time this method is called new DOM element is created.\n\t */\n\tpublic toDomElement( domDocument: DomDocument ): DomElement {\n\t\tconst domElement = domDocument.createElement( this.name );\n\n\t\tfor ( const key of this.getAttributeKeys() ) {\n\t\t\tdomElement.setAttribute( key, this.getAttribute( key )! );\n\t\t}\n\n\t\treturn domElement;\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nUIElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'uiElement' || type === 'view:uiElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'uiElement' || type === 'view:uiElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n/**\n * This function injects UI element handling to the given {@link module:engine/view/document~Document document}.\n *\n * A callback is added to {@link module:engine/view/document~Document#event:keydown document keydown event}.\n * The callback handles the situation when right arrow key is pressed and selection is collapsed before a UI element.\n * Without this handler, it would be impossible to \"jump over\" UI element using right arrow key.\n *\n * @param view View controller to which the quirks handling will be injected.\n */\nexport function injectUiElementHandling( view: View ): void {\n\tview.document.on<ViewDocumentArrowKeyEvent>( 'arrowKey', ( evt, data ) =>\n\t\tjumpOverUiElement( evt, data, view.domConverter ), { priority: 'low' } );\n}\n\n/**\n * Returns `null` because block filler is not needed for UIElements.\n */\nfunction getFillerOffset() {\n\treturn null;\n}\n\n/**\n * Selection cannot be placed in a `UIElement`. Whenever it is placed there, it is moved before it. This\n * causes a situation when it is impossible to jump over `UIElement` using right arrow key, because the selection\n * ends up in ui element (in DOM) and is moved back to the left. This handler fixes this situation.\n */\nfunction jumpOverUiElement( evt: unknown, data: KeyEventData, domConverter: DomConverter ) {\n\tif ( data.keyCode == keyCodes.arrowright ) {\n\t\tconst domSelection = data.domTarget.ownerDocument.defaultView!.getSelection()!;\n\t\tconst domSelectionCollapsed = domSelection.rangeCount == 1 && domSelection.getRangeAt( 0 ).collapsed;\n\n\t\t// Jump over UI element if selection is collapsed or shift key is pressed. These are the cases when selection would extend.\n\t\tif ( domSelectionCollapsed || data.shiftKey ) {\n\t\t\tconst domParent = domSelection.focusNode!;\n\t\t\tconst domOffset = domSelection.focusOffset;\n\n\t\t\tconst viewPosition = domConverter.domPositionToView( domParent, domOffset );\n\n\t\t\t// In case if dom element is not converted to view or is not mapped or something. Happens for example in some tests.\n\t\t\tif ( viewPosition === null ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Skip all following ui elements.\n\t\t\tlet jumpedOverAnyUiElement = false;\n\n\t\t\tconst nextViewPosition = viewPosition.getLastMatchingPosition( value => {\n\t\t\t\tif ( value.item.is( 'uiElement' ) ) {\n\t\t\t\t\t// Remember that there was at least one ui element.\n\t\t\t\t\tjumpedOverAnyUiElement = true;\n\t\t\t\t}\n\n\t\t\t\t// Jump over ui elements, jump over empty attribute elements, move up from inside of attribute element.\n\t\t\t\tif ( value.item.is( 'uiElement' ) || value.item.is( 'attributeElement' ) ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\t// Don't jump over text or don't get out of container element.\n\t\t\t\treturn false;\n\t\t\t} );\n\n\t\t\t// If anything has been skipped, fix position.\n\t\t\t// This `if` could be possibly omitted but maybe it is better not to mess with DOM selection if not needed.\n\t\t\tif ( jumpedOverAnyUiElement ) {\n\t\t\t\tconst newDomPosition = domConverter.viewPositionToDom( nextViewPosition )!;\n\n\t\t\t\tif ( domSelectionCollapsed ) {\n\t\t\t\t\t// Selection was collapsed, so collapse it at further position.\n\t\t\t\t\tdomSelection.collapse( newDomPosition.parent, newDomPosition.offset );\n\t\t\t\t} else {\n\t\t\t\t\t// Selection was not collapse, so extend it instead of collapsing.\n\t\t\t\t\tdomSelection.extend( newDomPosition.parent, newDomPosition.offset );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-unused-vars */\n\n/**\n * @module engine/view/rawelement\n */\n\nimport Element, { type ElementAttributes } from './element';\nimport Node from './node';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from './document';\nimport type DomConverter from './domconverter';\nimport type Item from './item';\n\ntype DomElement = globalThis.HTMLElement;\n\n/**\n * The raw element class.\n *\n * The raw elements work as data containers (\"wrappers\", \"sandboxes\") but their children are not managed or\n * even recognized by the editor. This encapsulation allows integrations to maintain custom DOM structures\n * in the editor content without, for instance, worrying about compatibility with other editor features.\n * Raw elements are a perfect tool for integration with external frameworks and data sources.\n *\n * Unlike {@link module:engine/view/uielement~UIElement UI elements}, raw elements act like real editor\n * content (similar to {@link module:engine/view/containerelement~ContainerElement} or\n * {@link module:engine/view/emptyelement~EmptyElement}), they are considered by the editor selection and\n * {@link module:widget/utils~toWidget they can work as widgets}.\n *\n * To create a new raw element, use the\n * {@link module:engine/view/downcastwriter~DowncastWriter#createRawElement `downcastWriter#createRawElement()`} method.\n */\nexport default class RawElement extends Element {\n\t/**\n\t * Creates a new instance of a raw element.\n\t *\n\t * Throws the `view-rawelement-cannot-add` {@link module:utils/ckeditorerror~CKEditorError CKEditorError} when the `children`\n\t * parameter is passed to inform that the usage of `RawElement` is incorrect (adding child nodes to `RawElement` is forbidden).\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#createRawElement\n\t * @internal\n\t * @param document The document instance to which this element belongs.\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\tname: string,\n\t\tattrs?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t) {\n\t\tsuper( document, name, attrs, children );\n\n\t\t// Returns `null` because filler is not needed for raw elements.\n\t\tthis.getFillerOffset = getFillerOffset;\n\t}\n\n\t/**\n\t * Overrides the {@link module:engine/view/element~Element#_insertChild} method.\n\t * Throws the `view-rawelement-cannot-add` {@link module:utils/ckeditorerror~CKEditorError CKEditorError} to prevent\n\t * adding any child nodes to a raw element.\n\t *\n\t * @internal\n\t */\n\tpublic override _insertChild( index: number, items: Item | Iterable<Item> ): number {\n\t\tif ( items && ( items instanceof Node || Array.from( items as Iterable<Item> ).length > 0 ) ) {\n\t\t\t/**\n\t\t\t * Cannot add children to a {@link module:engine/view/rawelement~RawElement} instance.\n\t\t\t *\n\t\t\t * @error view-rawelement-cannot-add\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-rawelement-cannot-add',\n\t\t\t\t[ this, items ]\n\t\t\t);\n\t\t}\n\n\t\treturn 0;\n\t}\n\n\t/**\n\t * This allows rendering the children of a {@link module:engine/view/rawelement~RawElement} on the DOM level.\n\t * This method is called by the {@link module:engine/view/domconverter~DomConverter} with the raw DOM element\n\t * passed as an argument, leaving the number and shape of the children up to the integrator.\n\t *\n\t * This method **must be defined** for the raw element to work:\n\t *\n\t * ```ts\n\t * const myRawElement = downcastWriter.createRawElement( 'div' );\n\t *\n\t * myRawElement.render = function( domElement, domConverter ) {\n\t * \tdomConverter.setContentOf( domElement, '<b>This is the raw content of myRawElement.</b>' );\n\t * };\n\t * ```\n\t *\n\t * @param domElement The native DOM element representing the raw view element.\n\t * @param domConverter Instance of the DomConverter used to optimize the output.\n\t */\n\tpublic render( domElement: DomElement, domConverter: DomConverter ): void {}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nRawElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'rawElement' || type === 'view:rawElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === this.name || type === 'view:' + this.name ||\n\t\t\ttype === 'element' || type === 'view:element' ||\n\t\t\ttype === 'node' || type === 'view:node';\n\t} else {\n\t\treturn name === this.name && (\n\t\t\ttype === 'rawElement' || type === 'view:rawElement' ||\n\t\t\ttype === 'element' || type === 'view:element'\n\t\t);\n\t}\n};\n\n/**\n * Returns `null` because block filler is not needed for raw elements.\n */\nfunction getFillerOffset() {\n\treturn null;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/documentfragment\n */\n\nimport TypeCheckable from './typecheckable';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport { EmitterMixin, isIterable } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Document, ChangeType } from './document';\n\nimport type Item from './item';\nimport type Node from './node';\n\n/**\n * Document fragment.\n *\n * To create a new document fragment instance use the\n * {@link module:engine/view/upcastwriter~UpcastWriter#createDocumentFragment `UpcastWriter#createDocumentFragment()`}\n * method.\n */\nexport default class DocumentFragment extends EmitterMixin( TypeCheckable ) implements Iterable<Node> {\n\t/**\n\t * The document to which this document fragment belongs.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * Array of child nodes.\n\t */\n\tprivate readonly _children: Array<Node> = [];\n\n\t/**\n\t * Map of custom properties.\n\t * Custom properties can be added to document fragment instance.\n\t */\n\tprivate readonly _customProperties = new Map<string | symbol, unknown>();\n\n\t/**\n\t * Creates new DocumentFragment instance.\n\t *\n\t * @internal\n\t * @param document The document to which this document fragment belongs.\n\t * @param children A list of nodes to be inserted into the created document fragment.\n\t */\n\tconstructor( document: Document, children?: Node | Iterable<Node> ) {\n\t\tsuper();\n\n\t\tthis.document = document;\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over nodes added to this document fragment.\n\t */\n\tpublic [ Symbol.iterator ](): Iterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Number of child nodes in this document fragment.\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this document fragment, `false` otherwise.\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this.childCount === 0;\n\t}\n\n\t/**\n\t * Artificial root of `DocumentFragment`. Returns itself. Added for compatibility reasons.\n\t */\n\tpublic get root(): this {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Artificial parent of `DocumentFragment`. Returns `null`. Added for compatibility reasons.\n\t */\n\tpublic get parent(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Artificial element name. Returns `undefined`. Added for compatibility reasons.\n\t */\n\tpublic get name(): undefined {\n\t\treturn undefined;\n\t}\n\n\t/**\n\t * Returns the custom property value for the given key.\n\t */\n\tpublic getCustomProperty( key: string | symbol ): unknown {\n\t\treturn this._customProperties.get( key );\n\t}\n\n\t/**\n\t * Returns an iterator which iterates over this document fragment's custom properties.\n\t * Iterator provides `[ key, value ]` pairs for each stored property.\n\t */\n\tpublic* getCustomProperties(): Iterable<[ string | symbol, unknown ]> {\n\t\tyield* this._customProperties.entries();\n\t}\n\n\t/**\n\t * {@link module:engine/view/documentfragment~DocumentFragment#_insertChild Insert} a child node or a list of child nodes at the end\n\t * and sets the parent of these nodes to this fragment.\n\t *\n\t * @internal\n\t * @param items Items to be inserted.\n\t * @returns Number of appended nodes.\n\t */\n\tpublic _appendChild( items: Item | string | Iterable<Item | string> ): number {\n\t\treturn this._insertChild( this.childCount, items );\n\t}\n\n\t/**\n\t * Gets child at the given index.\n\t *\n\t * @param index Index of child.\n\t * @returns Child node.\n\t */\n\tpublic getChild( index: number ): Node {\n\t\treturn this._children[ index ];\n\t}\n\n\t/**\n\t * Gets index of the given child node. Returns `-1` if child node is not found.\n\t *\n\t * @param node Child node.\n\t * @returns Index of the child node.\n\t */\n\tpublic getChildIndex( node: Node ): number {\n\t\treturn this._children.indexOf( node );\n\t}\n\n\t/**\n\t * Gets child nodes iterator.\n\t *\n\t * @returns Child nodes iterator.\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Inserts a child node or a list of child nodes on the given index and sets the parent of these nodes to\n\t * this fragment.\n\t *\n\t * @internal\n\t * @param index Position where nodes should be inserted.\n\t * @param items Items to be inserted.\n\t * @returns Number of inserted nodes.\n\t */\n\tpublic _insertChild( index: number, items: Item | string | Iterable<Item | string> ): number {\n\t\tthis._fireChange( 'children', this );\n\t\tlet count = 0;\n\n\t\tconst nodes = normalize( this.document, items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\t( node as any ).parent = this;\n\n\t\t\tthis._children.splice( index, 0, node );\n\t\t\tindex++;\n\t\t\tcount++;\n\t\t}\n\n\t\treturn count;\n\t}\n\n\t/**\n\t * Removes number of child nodes starting at the given index and set the parent of these nodes to `null`.\n\t *\n\t * @internal\n\t * @param index Number of the first node to remove.\n\t * @param howMany Number of nodes to remove.\n\t * @returns The array of removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tthis._fireChange( 'children', this );\n\n\t\tfor ( let i = index; i < index + howMany; i++ ) {\n\t\t\t( this._children[ i ] as any ).parent = null;\n\t\t}\n\n\t\treturn this._children.splice( index, howMany );\n\t}\n\n\t/**\n\t * Fires `change` event with given type of the change.\n\t *\n\t * @internal\n\t * @param type Type of the change.\n\t * @param node Changed node.\n\t */\n\tpublic _fireChange( type: ChangeType, node: Node | DocumentFragment ): void {\n\t\tthis.fire( 'change:' + type, node );\n\t}\n\n\t/**\n\t * Sets a custom property. They can be used to add special data to elements.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#setCustomProperty\n\t * @internal\n\t */\n\tpublic _setCustomProperty( key: string | symbol, value: unknown ): void {\n\t\tthis._customProperties.set( key, value );\n\t}\n\n\t/**\n\t * Removes the custom property stored under the given key.\n\t *\n\t * @see module:engine/view/downcastwriter~DowncastWriter#removeCustomProperty\n\t * @internal\n\t * @returns Returns true if property was removed.\n\t */\n\tpublic _removeCustomProperty( key: string | symbol ): boolean {\n\t\treturn this._customProperties.delete( key );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public printTree(): string {\n\t// @if CK_DEBUG_ENGINE // \tlet string = 'ViewDocumentFragment: [';\n\n\t// @if CK_DEBUG_ENGINE // \tfor ( const child of this.getChildren() as any ) {\n\t// @if CK_DEBUG_ENGINE // \t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += '\\n' + '\\t'.repeat( 1 ) + child.data;\n\t// @if CK_DEBUG_ENGINE // \t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += '\\n' + child.printTree( 1 );\n\t// @if CK_DEBUG_ENGINE // \t\t}\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tstring += '\\n]';\n\n\t// @if CK_DEBUG_ENGINE // \treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logTree(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nDocumentFragment.prototype.is = function( type: string ): boolean {\n\treturn type === 'documentFragment' || type === 'view:documentFragment';\n};\n\n/**\n * Converts strings to Text and non-iterables to arrays.\n */\nfunction normalize( document: Document, nodes: Item | string | Iterable<Item | string> ): Array<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( document, nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( document, node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( document, node.data );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/downcastwriter\n */\n\nimport Position, { type PositionOffset } from './position';\nimport Range from './range';\nimport Selection, {\n\ttype PlaceOrOffset,\n\ttype Selectable,\n\ttype SelectionOptions\n} from './selection';\nimport ContainerElement from './containerelement';\nimport AttributeElement from './attributeelement';\nimport EmptyElement from './emptyelement';\nimport UIElement from './uielement';\nimport RawElement from './rawelement';\nimport { CKEditorError, isIterable } from '@ckeditor/ckeditor5-utils';\nimport DocumentFragment from './documentfragment';\nimport Text from './text';\nimport EditableElement from './editableelement';\nimport { isPlainObject } from 'lodash-es';\n\nimport type Document from './document';\nimport type Node from './node';\nimport type { default as Element, ElementAttributes } from './element';\nimport type DomConverter from './domconverter';\nimport type Item from './item';\nimport type { SlotFilter } from '../conversion/downcasthelpers';\n\ntype DomDocument = globalThis.Document;\ntype DomElement = globalThis.HTMLElement;\n\n/**\n * View downcast writer.\n *\n * It provides a set of methods used to manipulate view nodes.\n *\n * Do not create an instance of this writer manually. To modify a view structure, use\n * the {@link module:engine/view/view~View#change `View#change()`} block.\n *\n * The `DowncastWriter` is designed to work with semantic views which are the views that were/are being downcasted from the model.\n * To work with ordinary views (e.g. parsed from a pasted content) use the\n * {@link module:engine/view/upcastwriter~UpcastWriter upcast writer}.\n *\n * Read more about changing the view in the {@glink framework/architecture/editing-engine#changing-the-view Changing the view}\n * section of the {@glink framework/architecture/editing-engine Editing engine architecture} guide.\n */\nexport default class DowncastWriter {\n\t/**\n\t * The view document instance in which this writer operates.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * Holds references to the attribute groups that share the same {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t * The keys are `id`s, the values are `Set`s holding {@link module:engine/view/attributeelement~AttributeElement}s.\n\t */\n\tprivate readonly _cloneGroups = new Map<string | number, Set<AttributeElement>>();\n\n\t/**\n\t * The slot factory used by the `elementToStructure` downcast helper.\n\t */\n\tprivate _slotFactory: ( ( writer: DowncastWriter, modeOrFilter: string | SlotFilter ) => Element ) | null = null;\n\n\t/**\n\t * @param document The view document instance.\n\t */\n\tconstructor( document: Document ) {\n\t\tthis.document = document;\n\t}\n\n\t/**\n\t * Sets {@link module:engine/view/documentselection~DocumentSelection selection's} ranges and direction to the\n\t * specified location based on the given {@link module:engine/view/selection~Selectable selectable}.\n\t *\n\t * Usage:\n\t *\n\t * ```ts\n\t * // Sets collapsed selection at the position of given item and offset.\n\t * const paragraph = writer.createContainerElement( 'p' );\n\t * writer.setSelection( paragraph, offset );\n\t * ```\n\t *\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * ```ts\n\t * writer.setSelection( paragraph, 'in' );\n\t * ```\n\t *\n\t * Creates a range on the {@link module:engine/view/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t * ```ts\n\t * writer.setSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * `DowncastWriter#setSelection()` allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Sets selection as backward.\n\t * writer.setSelection( element, 'in', { backward: true } );\n\t *\n\t * // Sets selection as fake.\n\t * // Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * // This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * // represented in other way, for example by applying proper CSS class.\n\t * writer.setSelection( element, 'in', { fake: true } );\n\t *\n\t * // Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * // (and be  properly handled by screen readers).\n\t * writer.setSelection( element, 'in', { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #setSelection:SELECTABLE `setSelection( selectable, options )`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic setSelection( selectable: Node, placeOrOffset: PlaceOrOffset, options?: SelectionOptions ): void;\n\n\t/**\n\t * Sets {@link module:engine/view/documentselection~DocumentSelection selection's} ranges and direction to the\n\t * specified location based on the given {@link module:engine/view/selection~Selectable selectable}.\n\t *\n\t * Usage:\n\t *\n\t * ```ts\n\t * // Sets selection to the given range.\n\t * const range = writer.createRange( start, end );\n\t * writer.setSelection( range );\n\t *\n\t * // Sets backward selection to the given range.\n\t * const range = writer.createRange( start, end );\n\t * writer.setSelection( range );\n\t *\n\t * // Sets selection to given ranges.\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( start2, end2 ) ];\n\t * writer.setSelection( range );\n\t *\n\t * // Sets selection to the other selection.\n\t * const otherSelection = writer.createSelection();\n\t * writer.setSelection( otherSelection );\n\t *\n\t * // Sets collapsed selection at the given position.\n\t * const position = writer.createPositionFromPath( root, path );\n\t * writer.setSelection( position );\n\t *\n\t * // Removes all ranges.\n\t * writer.setSelection( null );\n\t * ```\n\t *\n\t * `DowncastWriter#setSelection()` allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Sets selection as backward.\n\t * writer.setSelection( range, { backward: true } );\n\t *\n\t * // Sets selection as fake.\n\t * // Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * // This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * // represented in other way, for example by applying proper CSS class.\n\t * writer.setSelection( range, { fake: true } );\n\t *\n\t * // Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * // (and be  properly handled by screen readers).\n\t * writer.setSelection( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #setSelection:NODE_OFFSET `setSelection( node, placeOrOffset, options )`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic setSelection( selectable: Exclude<Selectable, Node>, options?: SelectionOptions ): void;\n\n\tpublic setSelection( ...args: Parameters<Selection[ 'setTo' ]> ): void {\n\t\tthis.document.selection._setTo( ...args );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/view/documentselection~DocumentSelection#focus selection's focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as {@link module:engine/view/view~View#createPositionAt view.createPositionAt()}\n\t * parameters.\n\t *\n\t * @param Offset or one of the flags. Used only when the first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic setSelectionFocus( itemOrPosition: Item | Position, offset?: PositionOffset ): void {\n\t\tthis.document.selection._setFocus( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/documentfragment~DocumentFragment} instance.\n\t *\n\t * @param children A list of nodes to be inserted into the created document fragment.\n\t * @returns The created document fragment.\n\t */\n\tpublic createDocumentFragment( children?: Node | Iterable<Node> ): DocumentFragment {\n\t\treturn new DocumentFragment( this.document, children );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/text~Text text node}.\n\t *\n\t * ```ts\n\t * writer.createText( 'foo' );\n\t * ```\n\t *\n\t * @param data The text's data.\n\t * @returns The created text node.\n\t */\n\tpublic createText( data: string ): Text {\n\t\treturn new Text( this.document, data );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/attributeelement~AttributeElement}.\n\t *\n\t * ```ts\n\t * writer.createAttributeElement( 'strong' );\n\t * writer.createAttributeElement( 'a', { href: 'foo.bar' } );\n\t *\n\t * // Make `<a>` element contain other attributes element so the `<a>` element is not broken.\n\t * writer.createAttributeElement( 'a', { href: 'foo.bar' }, { priority: 5 } );\n\t *\n\t * // Set `id` of a marker element so it is not joined or merged with \"normal\" elements.\n\t * writer.createAttributeElement( 'span', { class: 'my-marker' }, { id: 'marker:my' } );\n\t * ```\n\t *\n\t * @param name Name of the element.\n\t * @param attributes Element's attributes.\n\t * @param options Element's options.\n\t * @param options.priority Element's {@link module:engine/view/attributeelement~AttributeElement#priority priority}.\n\t * @param options.id Element's {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t * @param options.renderUnsafeAttributes A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns Created element.\n\t */\n\tpublic createAttributeElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\toptions: {\n\t\t\tpriority?: number;\n\t\t\tid?: number | string;\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): AttributeElement {\n\t\tconst attributeElement = new AttributeElement( this.document, name, attributes );\n\n\t\tif ( typeof options.priority === 'number' ) {\n\t\t\tattributeElement._priority = options.priority;\n\t\t}\n\n\t\tif ( options.id ) {\n\t\t\tattributeElement._id = options.id;\n\t\t}\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\tattributeElement._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn attributeElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/containerelement~ContainerElement}.\n\t *\n\t * ```ts\n\t * writer.createContainerElement( 'p' );\n\t *\n\t * // Create element with custom attributes.\n\t * writer.createContainerElement( 'div', { id: 'foo-bar', 'data-baz': '123' } );\n\t *\n\t * // Create element with custom styles.\n\t * writer.createContainerElement( 'p', { style: 'font-weight: bold; padding-bottom: 10px' } );\n\t *\n\t * // Create element with custom classes.\n\t * writer.createContainerElement( 'p', { class: 'foo bar baz' } );\n\t *\n\t * // Create element with specific options.\n\t * writer.createContainerElement( 'span', { class: 'placeholder' }, { renderUnsafeAttributes: [ 'foo' ] } );\n\t * ```\n\t *\n\t * @label WITHOUT_CHILDREN\n\t * @param name Name of the element.\n\t * @param attributes Elements attributes.\n\t * @param options Element's options.\n\t * @param options.renderUnsafeAttributes A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns Created element.\n\t */\n\tpublic createContainerElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\toptions?: { renderUnsafeAttributes?: Array<string> }\n\t): ContainerElement;\n\n\t/**\n\t * Creates a new {@link module:engine/view/containerelement~ContainerElement} with children.\n\t *\n\t * ```ts\n\t * // Create element with children.\n\t * writer.createContainerElement( 'figure', { class: 'image' }, [\n\t * \twriter.createEmptyElement( 'img' ),\n\t * \twriter.createContainerElement( 'figcaption' )\n\t * ] );\n\t *\n\t * // Create element with specific options.\n\t * writer.createContainerElement( 'figure', { class: 'image' }, [\n\t * \twriter.createEmptyElement( 'img' ),\n\t * \twriter.createContainerElement( 'figcaption' )\n\t * ], { renderUnsafeAttributes: [ 'foo' ] } );\n\t * ```\n\t *\n\t * @label WITH_CHILDREN\n\t * @param name Name of the element.\n\t * @param attributes Elements attributes.\n\t * @param children A node or a list of nodes to be inserted into the created element.\n\t * If no children were specified, element's `options` can be passed in this argument.\n\t * @param options Element's options.\n\t * @param options.renderUnsafeAttributes A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns Created element.\n\t */\n\tpublic createContainerElement(\n\t\tname: string,\n\t\tattributes: ElementAttributes,\n\t\tchildren: Node | Iterable<Node>,\n\t\toptions?: { renderUnsafeAttributes?: Array<string> }\n\t): ContainerElement;\n\n\tpublic createContainerElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\tchildrenOrOptions: Node | Iterable<Node> | { renderUnsafeAttributes?: Array<string> } = {},\n\t\toptions: { renderUnsafeAttributes?: Array<string> } = {}\n\t): ContainerElement {\n\t\tlet children = null;\n\n\t\tif ( isPlainObject( childrenOrOptions ) ) {\n\t\t\toptions = childrenOrOptions as { renderUnsafeAttributes?: Array<string> };\n\t\t} else {\n\t\t\tchildren = childrenOrOptions;\n\t\t}\n\n\t\tconst containerElement = new ContainerElement( this.document, name, attributes, children as Node | Iterable<Node> );\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\tcontainerElement._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn containerElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/editableelement~EditableElement}.\n\t *\n\t * ```ts\n\t * writer.createEditableElement( 'div' );\n\t * writer.createEditableElement( 'div', { id: 'foo-1234' } );\n\t * ```\n\t *\n\t * Note: The editable element is to be used in the editing pipeline. Usually, together with\n\t * {@link module:widget/utils~toWidgetEditable `toWidgetEditable()`}.\n\t *\n\t * @param name Name of the element.\n\t * @param attributes Elements attributes.\n\t * @param options Element's options.\n\t * @param options.renderUnsafeAttributes A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns Created element.\n\t */\n\tpublic createEditableElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\toptions: {\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): EditableElement {\n\t\tconst editableElement = new EditableElement( this.document, name, attributes );\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\teditableElement._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn editableElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/emptyelement~EmptyElement}.\n\t *\n\t * ```ts\n\t * writer.createEmptyElement( 'img' );\n\t * writer.createEmptyElement( 'img', { id: 'foo-1234' } );\n\t * ```\n\t *\n\t * @param name Name of the element.\n\t * @param attributes Elements attributes.\n\t * @param options Element's options.\n\t * @param options.renderUnsafeAttributes A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns Created element.\n\t */\n\tpublic createEmptyElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\toptions: {\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): EmptyElement {\n\t\tconst emptyElement = new EmptyElement( this.document, name, attributes );\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\temptyElement._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn emptyElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/uielement~UIElement}.\n\t *\n\t * ```ts\n\t * writer.createUIElement( 'span' );\n\t * writer.createUIElement( 'span', { id: 'foo-1234' } );\n\t * ```\n\t *\n\t * A custom render function can be provided as the third parameter:\n\t *\n\t * ```ts\n\t * writer.createUIElement( 'span', null, function( domDocument ) {\n\t * \tconst domElement = this.toDomElement( domDocument );\n\t * \tdomElement.innerHTML = '<b>this is ui element</b>';\n\t *\n\t * \treturn domElement;\n\t * } );\n\t * ```\n\t *\n\t * Unlike {@link #createRawElement raw elements}, UI elements are by no means editor content, for instance,\n\t * they are ignored by the editor selection system.\n\t *\n\t * You should not use UI elements as data containers. Check out {@link #createRawElement} instead.\n\t *\n\t * @param name The name of the element.\n\t * @param attributes Element attributes.\n\t * @param renderFunction A custom render function.\n\t * @returns The created element.\n\t */\n\tpublic createUIElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\trenderFunction?: ( this: UIElement, domDocument: DomDocument, domConverter: DomConverter ) => DomElement\n\t): UIElement {\n\t\tconst uiElement = new UIElement( this.document, name, attributes );\n\n\t\tif ( renderFunction ) {\n\t\t\tuiElement.render = renderFunction;\n\t\t}\n\n\t\treturn uiElement;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/rawelement~RawElement}.\n\t *\n\t * ```ts\n\t * writer.createRawElement( 'span', { id: 'foo-1234' }, function( domElement ) {\n\t * \tdomElement.innerHTML = '<b>This is the raw content of the raw element.</b>';\n\t * } );\n\t * ```\n\t *\n\t * Raw elements work as data containers (\"wrappers\", \"sandboxes\") but their children are not managed or\n\t * even recognized by the editor. This encapsulation allows integrations to maintain custom DOM structures\n\t * in the editor content without, for instance, worrying about compatibility with other editor features.\n\t * Raw elements are a perfect tool for integration with external frameworks and data sources.\n\t *\n\t * Unlike {@link #createUIElement UI elements}, raw elements act like \"real\" editor content (similar to\n\t * {@link module:engine/view/containerelement~ContainerElement} or {@link module:engine/view/emptyelement~EmptyElement}),\n\t * and they are considered by the editor selection.\n\t *\n\t * You should not use raw elements to render the UI in the editor content. Check out {@link #createUIElement `#createUIElement()`}\n\t * instead.\n\t *\n\t * @param name The name of the element.\n\t * @param attributes Element attributes.\n\t * @param renderFunction A custom render function.\n\t * @param options Element's options.\n\t * @param options.renderUnsafeAttributes A list of attribute names that should be rendered in the editing\n\t * pipeline even though they would normally be filtered out by unsafe attribute detection mechanisms.\n\t * @returns The created element.\n\t */\n\tpublic createRawElement(\n\t\tname: string,\n\t\tattributes?: ElementAttributes,\n\t\trenderFunction?: ( domElement: DomElement, domConverter: DomConverter ) => void,\n\t\toptions: {\n\t\t\trenderUnsafeAttributes?: Array<string>;\n\t\t} = {}\n\t): RawElement {\n\t\tconst rawElement = new RawElement( this.document, name, attributes );\n\n\t\tif ( renderFunction ) {\n\t\t\trawElement.render = renderFunction;\n\t\t}\n\n\t\tif ( options.renderUnsafeAttributes ) {\n\t\t\trawElement._unsafeAttributesToRender.push( ...options.renderUnsafeAttributes );\n\t\t}\n\n\t\treturn rawElement;\n\t}\n\n\t/**\n\t * Adds or overwrites the element's attribute with a specified key and value.\n\t *\n\t * ```ts\n\t * writer.setAttribute( 'href', 'http://ckeditor.com', linkElement );\n\t * ```\n\t *\n\t * @param key The attribute key.\n\t * @param value The attribute value.\n\t */\n\tpublic setAttribute( key: string, value: unknown, element: Element ): void {\n\t\telement._setAttribute( key, value );\n\t}\n\n\t/**\n\t * Removes attribute from the element.\n\t *\n\t * ```ts\n\t * writer.removeAttribute( 'href', linkElement );\n\t * ```\n\t *\n\t * @param key Attribute key.\n\t */\n\tpublic removeAttribute( key: string, element: Element ): void {\n\t\telement._removeAttribute( key );\n\t}\n\n\t/**\n\t * Adds specified class to the element.\n\t *\n\t * ```ts\n\t * writer.addClass( 'foo', linkElement );\n\t * writer.addClass( [ 'foo', 'bar' ], linkElement );\n\t * ```\n\t */\n\tpublic addClass( className: string | Array<string>, element: Element ): void {\n\t\telement._addClass( className );\n\t}\n\n\t/**\n\t * Removes specified class from the element.\n\t *\n\t * ```ts\n\t * writer.removeClass( 'foo', linkElement );\n\t * writer.removeClass( [ 'foo', 'bar' ], linkElement );\n\t * ```\n\t */\n\tpublic removeClass( className: string | Array<string>, element: Element ): void {\n\t\telement._removeClass( className );\n\t}\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t * ```ts\n\t * writer.setStyle( 'color', 'red', element );\n\t * ```\n\t *\n\t * **Note**: The passed style can be normalized if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @label KEY_VALUE\n\t * @param property Property name.\n\t * @param value Value to set.\n\t * @param element Element to set styles on.\n\t */\n\tpublic setStyle( property: string, value: string, element: Element ): void;\n\n\t/**\n\t * Adds many styles to the element.\n\t *\n\t * ```ts\n\t * writer.setStyle( {\n\t * \tcolor: 'red',\n\t * \tposition: 'fixed'\n\t * }, element );\n\t * ```\n\t *\n\t * **Note**: The passed style can be normalized if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @label OBJECT\n\t * @param property Object with key - value pairs.\n\t * @param element Element to set styles on.\n\t */\n\tpublic setStyle( property: Record<string, string>, element: Element ): void;\n\n\tpublic setStyle(\n\t\tproperty: string | Record<string, string>,\n\t\tvalue: string | Element,\n\t\telement?: Element\n\t): void\n\t{\n\t\tif ( isPlainObject( property ) && element === undefined ) {\n\t\t\t( value as Element )._setStyle( property as Record<string, string> );\n\t\t} else {\n\t\t\telement!._setStyle( property as string, value as string );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified style from the element.\n\t *\n\t * ```ts\n\t * writer.removeStyle( 'color', element ); // Removes 'color' style.\n\t * writer.removeStyle( [ 'color', 'border-top' ], element ); // Removes both 'color' and 'border-top' styles.\n\t * ```\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#remove `StylesMap#remove()`} for details.\n\t */\n\tpublic removeStyle( property: string | Array<string>, element: Element ): void {\n\t\telement._removeStyle( property );\n\t}\n\n\t/**\n\t * Sets a custom property on element. Unlike attributes, custom properties are not rendered to the DOM,\n\t * so they can be used to add special data to elements.\n\t */\n\tpublic setCustomProperty( key: string | symbol, value: unknown, element: Element | DocumentFragment ): void {\n\t\telement._setCustomProperty( key, value );\n\t}\n\n\t/**\n\t * Removes a custom property stored under the given key.\n\t *\n\t * @returns Returns true if property was removed.\n\t */\n\tpublic removeCustomProperty( key: string | symbol, element: Element | DocumentFragment ): boolean {\n\t\treturn element._removeCustomProperty( key );\n\t}\n\n\t/**\n\t * Breaks attribute elements at the provided position or at the boundaries of a provided range. It breaks attribute elements\n\t * up to their first ancestor that is a container element.\n\t *\n\t * In following examples `<p>` is a container, `<b>` and `<u>` are attribute elements:\n\t *\n\t * ```html\n\t * <p>foo<b><u>bar{}</u></b></p> -> <p>foo<b><u>bar</u></b>[]</p>\n\t * <p>foo<b><u>{}bar</u></b></p> -> <p>foo{}<b><u>bar</u></b></p>\n\t * <p>foo<b><u>b{}ar</u></b></p> -> <p>foo<b><u>b</u></b>[]<b><u>ar</u></b></p>\n\t * <p><b>fo{o</b><u>ba}r</u></p> -> <p><b>fo</b><b>o</b><u>ba</u><u>r</u></b></p>\n\t * ```\n\t *\n\t * **Note:** {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment} is treated like a container.\n\t *\n\t * **Note:** The difference between {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes breakAttributes()} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakContainer breakContainer()} is that `breakAttributes()` breaks all\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} that are ancestors of a given `position`,\n\t * up to the first encountered {@link module:engine/view/containerelement~ContainerElement container element}.\n\t * `breakContainer()` assumes that a given `position` is directly in the container element and breaks that container element.\n\t *\n\t * Throws the `view-writer-invalid-range-container` {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * when the {@link module:engine/view/range~Range#start start}\n\t * and {@link module:engine/view/range~Range#end end} positions of a passed range are not placed inside same parent container.\n\t *\n\t * Throws the `view-writer-cannot-break-empty-element` {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * when trying to break attributes inside an {@link module:engine/view/emptyelement~EmptyElement EmptyElement}.\n\t *\n\t * Throws the `view-writer-cannot-break-ui-element` {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * when trying to break attributes inside a {@link module:engine/view/uielement~UIElement UIElement}.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#breakContainer\n\t * @param positionOrRange The position where to break attribute elements.\n\t * @returns The new position or range, after breaking the attribute elements.\n\t */\n\tpublic breakAttributes( positionOrRange: Position | Range ): Position | Range {\n\t\tif ( positionOrRange instanceof Position ) {\n\t\t\treturn this._breakAttributes( positionOrRange );\n\t\t} else {\n\t\t\treturn this._breakAttributesRange( positionOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Breaks a {@link module:engine/view/containerelement~ContainerElement container view element} into two, at the given position.\n\t * The position has to be directly inside the container element and cannot be in the root. It does not break the conrainer view element\n\t * if the position is at the beginning or at the end of its parent element.\n\t *\n\t * ```html\n\t * <p>foo^bar</p> -> <p>foo</p><p>bar</p>\n\t * <div><p>foo</p>^<p>bar</p></div> -> <div><p>foo</p></div><div><p>bar</p></div>\n\t * <p>^foobar</p> -> ^<p>foobar</p>\n\t * <p>foobar^</p> -> <p>foobar</p>^\n\t * ```\n\t *\n\t * **Note:** The difference between {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes breakAttributes()} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakContainer breakContainer()} is that `breakAttributes()` breaks all\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} that are ancestors of a given `position`,\n\t * up to the first encountered {@link module:engine/view/containerelement~ContainerElement container element}.\n\t * `breakContainer()` assumes that the given `position` is directly in the container element and breaks that container element.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#breakAttributes\n\t * @param position The position where to break the element.\n\t * @returns The position between broken elements. If an element has not been broken,\n\t * the returned position is placed either before or after it.\n\t */\n\tpublic breakContainer( position: Position ): Position {\n\t\tconst element = position.parent;\n\n\t\tif ( !( element.is( 'containerElement' ) ) ) {\n\t\t\t/**\n\t\t\t * Trying to break an element which is not a container element.\n\t\t\t *\n\t\t\t * @error view-writer-break-non-container-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-break-non-container-element', this.document );\n\t\t}\n\n\t\tif ( !element.parent ) {\n\t\t\t/**\n\t\t\t * Trying to break root element.\n\t\t\t *\n\t\t\t * @error view-writer-break-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-break-root', this.document );\n\t\t}\n\n\t\tif ( position.isAtStart ) {\n\t\t\treturn Position._createBefore( element );\n\t\t} else if ( !position.isAtEnd ) {\n\t\t\tconst newElement = element._clone( false );\n\n\t\t\tthis.insert( Position._createAfter( element ), newElement as any );\n\n\t\t\tconst sourceRange = new Range( position, Position._createAt( element, 'end' ) );\n\t\t\tconst targetPosition = new Position( newElement, 0 );\n\n\t\t\tthis.move( sourceRange, targetPosition );\n\t\t}\n\n\t\treturn Position._createAfter( element );\n\t}\n\n\t/**\n\t * Merges {@link module:engine/view/attributeelement~AttributeElement attribute elements}. It also merges text nodes if needed.\n\t * Only {@link module:engine/view/attributeelement~AttributeElement#isSimilar similar} attribute elements can be merged.\n\t *\n\t * In following examples `<p>` is a container and `<b>` is an attribute element:\n\t *\n\t * ```html\n\t * <p>foo[]bar</p> -> <p>foo{}bar</p>\n\t * <p><b>foo</b>[]<b>bar</b></p> -> <p><b>foo{}bar</b></p>\n\t * <p><b foo=\"bar\">a</b>[]<b foo=\"baz\">b</b></p> -> <p><b foo=\"bar\">a</b>[]<b foo=\"baz\">b</b></p>\n\t * ```\n\t *\n\t * It will also take care about empty attributes when merging:\n\t *\n\t * ```html\n\t * <p><b>[]</b></p> -> <p>[]</p>\n\t * <p><b>foo</b><i>[]</i><b>bar</b></p> -> <p><b>foo{}bar</b></p>\n\t * ```\n\t *\n\t * **Note:** Difference between {@link module:engine/view/downcastwriter~DowncastWriter#mergeAttributes mergeAttributes} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#mergeContainers mergeContainers} is that `mergeAttributes` merges two\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} or {@link module:engine/view/text~Text text nodes}\n\t * while `mergeContainer` merges two {@link module:engine/view/containerelement~ContainerElement container elements}.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#mergeContainers\n\t * @param position Merge position.\n\t * @returns Position after merge.\n\t */\n\tpublic mergeAttributes( position: Position ): Position {\n\t\tconst positionOffset = position.offset;\n\t\tconst positionParent = position.parent;\n\n\t\t// When inside text node - nothing to merge.\n\t\tif ( positionParent.is( '$text' ) ) {\n\t\t\treturn position;\n\t\t}\n\n\t\t// When inside empty attribute - remove it.\n\t\tif ( positionParent.is( 'attributeElement' ) && positionParent.childCount === 0 ) {\n\t\t\tconst parent = positionParent.parent;\n\t\t\tconst offset = positionParent.index;\n\n\t\t\tpositionParent._remove();\n\t\t\tthis._removeFromClonedElementsGroup( positionParent );\n\n\t\t\treturn this.mergeAttributes( new Position( parent!, offset! ) );\n\t\t}\n\n\t\tconst nodeBefore = ( positionParent as Element ).getChild( positionOffset - 1 );\n\t\tconst nodeAfter = ( positionParent as Element ).getChild( positionOffset );\n\n\t\t// Position should be placed between two nodes.\n\t\tif ( !nodeBefore || !nodeAfter ) {\n\t\t\treturn position;\n\t\t}\n\n\t\t// When position is between two text nodes.\n\t\tif ( nodeBefore.is( '$text' ) && nodeAfter.is( '$text' ) ) {\n\t\t\treturn mergeTextNodes( nodeBefore, nodeAfter );\n\t\t}\n\t\t// When position is between two same attribute elements.\n\t\telse if ( nodeBefore.is( 'attributeElement' ) && nodeAfter.is( 'attributeElement' ) && nodeBefore.isSimilar( nodeAfter ) ) {\n\t\t\t// Move all children nodes from node placed after selection and remove that node.\n\t\t\tconst count = nodeBefore.childCount;\n\t\t\tnodeBefore._appendChild( nodeAfter.getChildren() );\n\n\t\t\tnodeAfter._remove();\n\t\t\tthis._removeFromClonedElementsGroup( nodeAfter );\n\n\t\t\t// New position is located inside the first node, before new nodes.\n\t\t\t// Call this method recursively to merge again if needed.\n\t\t\treturn this.mergeAttributes( new Position( nodeBefore, count ) );\n\t\t}\n\n\t\treturn position;\n\t}\n\n\t/**\n\t * Merges two {@link module:engine/view/containerelement~ContainerElement container elements} that are before and after given position.\n\t * Precisely, the element after the position is removed and it's contents are moved to element before the position.\n\t *\n\t * ```html\n\t * <p>foo</p>^<p>bar</p> -> <p>foo^bar</p>\n\t * <div>foo</div>^<p>bar</p> -> <div>foo^bar</div>\n\t * ```\n\t *\n\t * **Note:** Difference between {@link module:engine/view/downcastwriter~DowncastWriter#mergeAttributes mergeAttributes} and\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#mergeContainers mergeContainers} is that `mergeAttributes` merges two\n\t * {@link module:engine/view/attributeelement~AttributeElement attribute elements} or {@link module:engine/view/text~Text text nodes}\n\t * while `mergeContainer` merges two {@link module:engine/view/containerelement~ContainerElement container elements}.\n\t *\n\t * @see module:engine/view/attributeelement~AttributeElement\n\t * @see module:engine/view/containerelement~ContainerElement\n\t * @see module:engine/view/downcastwriter~DowncastWriter#mergeAttributes\n\t * @param position Merge position.\n\t * @returns Position after merge.\n\t */\n\tpublic mergeContainers( position: Position ): Position {\n\t\tconst prev = position.nodeBefore;\n\t\tconst next = position.nodeAfter;\n\n\t\tif ( !prev || !next || !prev.is( 'containerElement' ) || !next.is( 'containerElement' ) ) {\n\t\t\t/**\n\t\t\t * Element before and after given position cannot be merged.\n\t\t\t *\n\t\t\t * @error view-writer-merge-containers-invalid-position\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-merge-containers-invalid-position', this.document );\n\t\t}\n\n\t\tconst lastChild = prev.getChild( prev.childCount - 1 );\n\t\tconst newPosition = lastChild instanceof Text ? Position._createAt( lastChild, 'end' ) : Position._createAt( prev, 'end' );\n\n\t\tthis.move( Range._createIn( next ), Position._createAt( prev, 'end' ) );\n\t\tthis.remove( Range._createOn( next ) );\n\n\t\treturn newPosition;\n\t}\n\n\t/**\n\t * Inserts a node or nodes at specified position. Takes care about breaking attributes before insertion\n\t * and merging them afterwards.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-insert-invalid-node` when nodes to insert\n\t * contains instances that are not {@link module:engine/view/text~Text Texts},\n\t * {@link module:engine/view/attributeelement~AttributeElement AttributeElements},\n\t * {@link module:engine/view/containerelement~ContainerElement ContainerElements},\n\t * {@link module:engine/view/emptyelement~EmptyElement EmptyElements},\n\t * {@link module:engine/view/rawelement~RawElement RawElements} or\n\t * {@link module:engine/view/uielement~UIElement UIElements}.\n\t *\n\t * @param position Insertion position.\n\t * @param nodes Node or nodes to insert.\n\t * @returns Range around inserted nodes.\n\t */\n\tpublic insert( position: Position, nodes: Node | Iterable<Node> ): Range {\n\t\tnodes = isIterable( nodes ) ? [ ...nodes ] : [ nodes ];\n\n\t\t// Check if nodes to insert are instances of AttributeElements, ContainerElements, EmptyElements, UIElements or Text.\n\t\tvalidateNodesToInsert( nodes, this.document );\n\n\t\t// Group nodes in batches of nodes that require or do not require breaking an AttributeElements.\n\t\tconst nodeGroups = ( nodes as Array<Node> ).reduce( ( groups: Array<{ breakAttributes: boolean; nodes: Array<Node> }>, node ) => {\n\t\t\tconst lastGroup = groups[ groups.length - 1 ];\n\n\t\t\t// Break attributes on nodes that do exist in the model tree so they can have attributes, other elements\n\t\t\t// can't have an attribute in model and won't get wrapped with an AttributeElement while down-casted.\n\t\t\tconst breakAttributes = !node.is( 'uiElement' );\n\n\t\t\tif ( !lastGroup || lastGroup.breakAttributes != breakAttributes ) {\n\t\t\t\tgroups.push( {\n\t\t\t\t\tbreakAttributes,\n\t\t\t\t\tnodes: [ node ]\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tlastGroup.nodes.push( node );\n\t\t\t}\n\n\t\t\treturn groups;\n\t\t}, [] );\n\n\t\t// Insert nodes in batches.\n\t\tlet start = null;\n\t\tlet end = position;\n\n\t\tfor ( const { nodes, breakAttributes } of nodeGroups ) {\n\t\t\tconst range = this._insertNodes( end, nodes, breakAttributes );\n\n\t\t\tif ( !start ) {\n\t\t\t\tstart = range.start;\n\t\t\t}\n\n\t\t\tend = range.end;\n\t\t}\n\n\t\t// When no nodes were inserted - return collapsed range.\n\t\tif ( !start ) {\n\t\t\treturn new Range( position );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Removes provided range from the container.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t *\n\t * @param rangeOrItem Range to remove from container\n\t * or an {@link module:engine/view/item~Item item} to remove. If range is provided, after removing, it will be updated\n\t * to a collapsed range showing the new position.\n\t * @returns Document fragment containing removed nodes.\n\t */\n\tpublic remove( rangeOrItem: Range | Item ): DocumentFragment {\n\t\tconst range = rangeOrItem instanceof Range ? rangeOrItem : Range._createOn( rangeOrItem );\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// If range is collapsed - nothing to remove.\n\t\tif ( range.isCollapsed ) {\n\t\t\treturn new DocumentFragment( this.document );\n\t\t}\n\n\t\t// Break attributes at range start and end.\n\t\tconst { start: breakStart, end: breakEnd } = this._breakAttributesRange( range, true );\n\t\tconst parentContainer = breakStart.parent as Element;\n\n\t\tconst count = breakEnd.offset - breakStart.offset;\n\n\t\t// Remove nodes in range.\n\t\tconst removed = parentContainer._removeChildren( breakStart.offset, count );\n\n\t\tfor ( const node of removed ) {\n\t\t\tthis._removeFromClonedElementsGroup( node );\n\t\t}\n\n\t\t// Merge after removing.\n\t\tconst mergePosition = this.mergeAttributes( breakStart );\n\t\t( range as any ).start = mergePosition;\n\t\t( range as any ).end = mergePosition.clone();\n\n\t\t// Return removed nodes.\n\t\treturn new DocumentFragment( this.document, removed );\n\t}\n\n\t/**\n\t * Removes matching elements from given range.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t *\n\t * @param range Range to clear.\n\t * @param element Element to remove.\n\t */\n\tpublic clear( range: Range, element: Element ): void {\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// Create walker on given range.\n\t\t// We walk backward because when we remove element during walk it modifies range end position.\n\t\tconst walker = range.getWalker( {\n\t\t\tdirection: 'backward',\n\t\t\tignoreElementEnd: true\n\t\t} );\n\n\t\t// Let's walk.\n\t\tfor ( const current of walker ) {\n\t\t\tconst item = current.item;\n\t\t\tlet rangeToRemove;\n\n\t\t\t// When current item matches to the given element.\n\t\t\tif ( item.is( 'element' ) && element.isSimilar( item ) ) {\n\t\t\t\t// Create range on this element.\n\t\t\t\trangeToRemove = Range._createOn( item );\n\t\t\t\t// When range starts inside Text or TextProxy element.\n\t\t\t} else if ( !current.nextPosition.isAfter( range.start ) && item.is( '$textProxy' ) ) {\n\t\t\t\t// We need to check if parent of this text matches to given element.\n\t\t\t\tconst parentElement = item.getAncestors().find( ancestor => {\n\t\t\t\t\treturn ancestor.is( 'element' ) && element.isSimilar( ancestor );\n\t\t\t\t} );\n\n\t\t\t\t// If it is then create range inside this element.\n\t\t\t\tif ( parentElement ) {\n\t\t\t\t\trangeToRemove = Range._createIn( parentElement as Element );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If we have found element to remove.\n\t\t\tif ( rangeToRemove ) {\n\t\t\t\t// We need to check if element range stick out of the given range and truncate if it is.\n\t\t\t\tif ( rangeToRemove.end.isAfter( range.end ) ) {\n\t\t\t\t\t( rangeToRemove as any ).end = range.end;\n\t\t\t\t}\n\n\t\t\t\tif ( rangeToRemove.start.isBefore( range.start ) ) {\n\t\t\t\t\t( rangeToRemove as any ).start = range.start;\n\t\t\t\t}\n\n\t\t\t\t// At the end we remove range with found element.\n\t\t\t\tthis.remove( rangeToRemove );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Moves nodes from provided range to target position.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t *\n\t * @param sourceRange Range containing nodes to move.\n\t * @param targetPosition Position to insert.\n\t * @returns Range in target container. Inserted nodes are placed between\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions.\n\t */\n\tpublic move( sourceRange: Range, targetPosition: Position ): Range {\n\t\tlet nodes;\n\n\t\tif ( targetPosition.isAfter( sourceRange.end ) ) {\n\t\t\ttargetPosition = this._breakAttributes( targetPosition, true );\n\n\t\t\tconst parent = targetPosition.parent as Element;\n\t\t\tconst countBefore = parent.childCount;\n\n\t\t\tsourceRange = this._breakAttributesRange( sourceRange, true );\n\n\t\t\tnodes = this.remove( sourceRange );\n\n\t\t\ttargetPosition.offset += ( parent.childCount - countBefore );\n\t\t} else {\n\t\t\tnodes = this.remove( sourceRange );\n\t\t}\n\n\t\treturn this.insert( targetPosition, nodes );\n\t}\n\n\t/**\n\t * Wraps elements within range with provided {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t * If a collapsed range is provided, it will be wrapped only if it is equal to view selection.\n\t *\n\t * If a collapsed range was passed and is same as selection, the selection\n\t * will be moved to the inside of the wrapped attribute element.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-invalid-range-container`\n\t * when {@link module:engine/view/range~Range#start}\n\t * and {@link module:engine/view/range~Range#end} positions are not placed inside same parent container.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-invalid-attribute` when passed attribute element is not\n\t * an instance of {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-nonselection-collapsed-range` when passed range\n\t * is collapsed and different than view selection.\n\t *\n\t * @param range Range to wrap.\n\t * @param attribute Attribute element to use as wrapper.\n\t * @returns range Range after wrapping, spanning over wrapping attribute element.\n\t */\n\tpublic wrap( range: Range, attribute: AttributeElement ): Range {\n\t\tif ( !( attribute instanceof AttributeElement ) ) {\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-writer-wrap-invalid-attribute',\n\t\t\t\tthis.document\n\t\t\t);\n\t\t}\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\tif ( !range.isCollapsed ) {\n\t\t\t// Non-collapsed range. Wrap it with the attribute element.\n\t\t\treturn this._wrapRange( range, attribute );\n\t\t} else {\n\t\t\t// Collapsed range. Wrap position.\n\t\t\tlet position = range.start;\n\n\t\t\tif ( position.parent.is( 'element' ) && !_hasNonUiChildren( position.parent ) ) {\n\t\t\t\tposition = position.getLastMatchingPosition( value => value.item.is( 'uiElement' ) );\n\t\t\t}\n\n\t\t\tposition = this._wrapPosition( position, attribute );\n\t\t\tconst viewSelection = this.document.selection;\n\n\t\t\t// If wrapping position is equal to view selection, move view selection inside wrapping attribute element.\n\t\t\tif ( viewSelection.isCollapsed && viewSelection.getFirstPosition()!.isEqual( range.start ) ) {\n\t\t\t\tthis.setSelection( position );\n\t\t\t}\n\n\t\t\treturn new Range( position );\n\t\t}\n\t}\n\n\t/**\n\t * Unwraps nodes within provided range from attribute element.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when\n\t * {@link module:engine/view/range~Range#start start} and {@link module:engine/view/range~Range#end end} positions are not placed inside\n\t * same parent container.\n\t */\n\tpublic unwrap( range: Range, attribute: AttributeElement ): Range {\n\t\tif ( !( attribute instanceof AttributeElement ) ) {\n\t\t\t/**\n\t\t\t * The `attribute` passed to {@link module:engine/view/downcastwriter~DowncastWriter#unwrap `DowncastWriter#unwrap()`}\n\t\t\t * must be an instance of {@link module:engine/view/attributeelement~AttributeElement `AttributeElement`}.\n\t\t\t *\n\t\t\t * @error view-writer-unwrap-invalid-attribute\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-writer-unwrap-invalid-attribute',\n\t\t\t\tthis.document\n\t\t\t);\n\t\t}\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// If range is collapsed - nothing to unwrap.\n\t\tif ( range.isCollapsed ) {\n\t\t\treturn range;\n\t\t}\n\n\t\t// Break attributes at range start and end.\n\t\tconst { start: breakStart, end: breakEnd } = this._breakAttributesRange( range, true );\n\t\tconst parentContainer = breakStart.parent as Element;\n\n\t\t// Unwrap children located between break points.\n\t\tconst newRange = this._unwrapChildren( parentContainer, breakStart.offset, breakEnd.offset, attribute );\n\n\t\t// Merge attributes at the both ends and return a new range.\n\t\tconst start = this.mergeAttributes( newRange.start );\n\n\t\t// If start position was merged - move end position back.\n\t\tif ( !start.isEqual( newRange.start ) ) {\n\t\t\tnewRange.end.offset--;\n\t\t}\n\n\t\tconst end = this.mergeAttributes( newRange.end );\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Renames element by creating a copy of renamed element but with changed name and then moving contents of the\n\t * old element to the new one. Keep in mind that this will invalidate all {@link module:engine/view/position~Position positions} which\n\t * has renamed element as {@link module:engine/view/position~Position#parent a parent}.\n\t *\n\t * New element has to be created because `Element#tagName` property in DOM is readonly.\n\t *\n\t * Since this function creates a new element and removes the given one, the new element is returned to keep reference.\n\t *\n\t * @param newName New name for element.\n\t * @param viewElement Element to be renamed.\n\t * @returns Element created due to rename.\n\t */\n\tpublic rename( newName: string, viewElement: ContainerElement ): ContainerElement {\n\t\tconst newElement = new ContainerElement( this.document, newName, viewElement.getAttributes() );\n\n\t\tthis.insert( Position._createAfter( viewElement ), newElement );\n\t\tthis.move( Range._createIn( viewElement ), Position._createAt( newElement, 0 ) );\n\t\tthis.remove( Range._createOn( viewElement ) );\n\n\t\treturn newElement;\n\t}\n\n\t/**\n\t * Cleans up memory by removing obsolete cloned elements group from the writer.\n\t *\n\t * Should be used whenever all {@link module:engine/view/attributeelement~AttributeElement attribute elements}\n\t * with the same {@link module:engine/view/attributeelement~AttributeElement#id id} are going to be removed from the view and\n\t * the group will no longer be needed.\n\t *\n\t * Cloned elements group are not removed automatically in case if the group is still needed after all its elements\n\t * were removed from the view.\n\t *\n\t * Keep in mind that group names are equal to the `id` property of the attribute element.\n\t *\n\t * @param groupName Name of the group to clear.\n\t */\n\tpublic clearClonedElementsGroup( groupName: string ): void {\n\t\tthis._cloneGroups.delete( groupName );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link #createPositionBefore},\n\t * * {@link #createPositionAfter},\n\t *\n\t * @param offset Offset or one of the flags. Used only when the first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic createPositionAt( itemOrPosition: Item | Position, offset?: PositionOffset ): Position {\n\t\treturn Position._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @param item View item after which the position should be located.\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn Position._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @param item View item before which the position should be located.\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn Position._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** This factory method creates its own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param start Start position.\n\t * @param end End position. If not set, range will be collapsed at `start` position.\n\t */\n\tpublic createRange( start: Position, end?: Position | null ): Range {\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t */\n\tpublic createRangeOn( item: Item ): Range {\n\t\treturn Range._createOn( item );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic createRangeIn( element: Element | DocumentFragment ): Range {\n\t\treturn Range._createIn( element );\n\t}\n\n\t/**\n\t * Creates new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * ```ts\n\t * // Creates collapsed selection at the position of given item and offset.\n\t * const paragraph = writer.createContainerElement( 'p' );\n\t * const selection = writer.createSelection( paragraph, offset );\n\t *\n\t * // Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t * // first child of that element and ends after the last child of that element.\n\t * const selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t * // Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t * // just after the item.\n\t * const selection = writer.createSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( element, 'in', { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = writer.createSelection( element, 'in', { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:SELECTABLE `createSelection( selectable, options )`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic createSelection( selectable: Node, placeOrOffset: PlaceOrOffset, options?: SelectionOptions ): Selection;\n\n\t/**\n\t * Creates new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * ```ts\n\t * // Creates empty selection without ranges.\n\t * const selection = writer.createSelection();\n\t *\n\t * // Creates selection at the given range.\n\t * const range = writer.createRange( start, end );\n\t * const selection = writer.createSelection( range );\n\t *\n\t * // Creates selection at the given ranges\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * const selection = writer.createSelection( ranges );\n\t *\n\t * // Creates selection from the other selection.\n\t * const otherSelection = writer.createSelection();\n\t * const selection = writer.createSelection( otherSelection );\n\t *\n\t * // Creates selection from the document selection.\n\t * const selection = writer.createSelection( editor.editing.view.document.selection );\n\t *\n\t * // Creates selection at the given position.\n\t * const position = writer.createPositionFromPath( root, path );\n\t * const selection = writer.createSelection( position );\n\t * ```\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = writer.createSelection( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:NODE_OFFSET `createSelection( node, placeOrOffset, options )`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic createSelection( selectable?: Exclude<Selectable, Node>, option?: SelectionOptions ): Selection;\n\n\tpublic createSelection( ...args: ConstructorParameters<typeof Selection> ): Selection {\n\t\treturn new Selection( ...args );\n\t}\n\n\t/**\n\t * Creates placeholders for child elements of the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n\t * `elementToStructure()`} conversion helper.\n\t *\n\t * ```ts\n\t * const viewSlot = conversionApi.writer.createSlot();\n\t * const viewPosition = conversionApi.writer.createPositionAt( viewElement, 0 );\n\t *\n\t * conversionApi.writer.insert( viewPosition, viewSlot );\n\t * ```\n\t *\n\t * It could be filtered down to a specific subset of children (only `<foo>` model elements in this case):\n\t *\n\t * ```ts\n\t * const viewSlot = conversionApi.writer.createSlot( node => node.is( 'element', 'foo' ) );\n\t * const viewPosition = conversionApi.writer.createPositionAt( viewElement, 0 );\n\t *\n\t * conversionApi.writer.insert( viewPosition, viewSlot );\n\t * ```\n\t *\n\t * While providing a filtered slot, make sure to provide slots for all child nodes. A single node can not be downcasted into\n\t * multiple slots.\n\t *\n\t * **Note**: You should not change the order of nodes. View elements should be in the same order as model nodes.\n\t *\n\t * @param modeOrFilter The filter for child nodes.\n\t * @returns The slot element to be placed in to the view structure while processing\n\t * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure `elementToStructure()`}.\n\t */\n\tpublic createSlot( modeOrFilter: 'children' | SlotFilter = 'children' ): Element {\n\t\tif ( !this._slotFactory ) {\n\t\t\t/**\n\t\t\t * The `createSlot()` method is only allowed inside the `elementToStructure` downcast helper callback.\n\t\t\t *\n\t\t\t * @error view-writer-invalid-create-slot-context\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-invalid-create-slot-context', this.document );\n\t\t}\n\n\t\treturn this._slotFactory( this, modeOrFilter );\n\t}\n\n\t/**\n\t * Registers a slot factory.\n\t *\n\t * @internal\n\t * @param slotFactory The slot factory.\n\t */\n\tpublic _registerSlotFactory( slotFactory: ( writer: DowncastWriter, modeOrFilter: string | SlotFilter ) => Element ): void {\n\t\tthis._slotFactory = slotFactory;\n\t}\n\n\t/**\n\t * Clears the registered slot factory.\n\t *\n\t * @internal\n\t */\n\tpublic _clearSlotFactory(): void {\n\t\tthis._slotFactory = null;\n\t}\n\n\t/**\n\t * Inserts a node or nodes at the specified position. Takes care of breaking attributes before insertion\n\t * and merging them afterwards if requested by the breakAttributes param.\n\t *\n\t * @param position Insertion position.\n\t * @param nodes Node or nodes to insert.\n\t * @param breakAttributes Whether attributes should be broken.\n\t * @returns Range around inserted nodes.\n\t */\n\tprivate _insertNodes( position: Position, nodes: Iterable<Node>, breakAttributes: boolean ): Range {\n\t\tlet parentElement;\n\n\t\t// Break attributes on nodes that do exist in the model tree so they can have attributes, other elements\n\t\t// can't have an attribute in model and won't get wrapped with an AttributeElement while down-casted.\n\t\tif ( breakAttributes ) {\n\t\t\tparentElement = getParentContainer( position );\n\t\t} else {\n\t\t\tparentElement = position.parent.is( '$text' ) ? position.parent.parent : position.parent;\n\t\t}\n\n\t\tif ( !parentElement ) {\n\t\t\t/**\n\t\t\t * Position's parent container cannot be found.\n\t\t\t *\n\t\t\t * @error view-writer-invalid-position-container\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'view-writer-invalid-position-container',\n\t\t\t\tthis.document\n\t\t\t);\n\t\t}\n\n\t\tlet insertionPosition;\n\n\t\tif ( breakAttributes ) {\n\t\t\tinsertionPosition = this._breakAttributes( position, true );\n\t\t} else {\n\t\t\tinsertionPosition = position.parent.is( '$text' ) ? breakTextNode( position ) : position;\n\t\t}\n\n\t\tconst length = ( parentElement as Element | DocumentFragment )._insertChild( insertionPosition.offset, nodes );\n\n\t\tfor ( const node of nodes ) {\n\t\t\tthis._addToClonedElementsGroup( node );\n\t\t}\n\n\t\tconst endPosition = insertionPosition.getShiftedBy( length );\n\t\tconst start = this.mergeAttributes( insertionPosition );\n\n\t\t// If start position was merged - move end position.\n\t\tif ( !start.isEqual( insertionPosition ) ) {\n\t\t\tendPosition.offset--;\n\t\t}\n\n\t\tconst end = this.mergeAttributes( endPosition );\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Wraps children with provided `wrapElement`. Only children contained in `parent` element between\n\t * `startOffset` and `endOffset` will be wrapped.\n\t */\n\tprivate _wrapChildren( parent: Element, startOffset: number, endOffset: number, wrapElement: AttributeElement ) {\n\t\tlet i = startOffset;\n\t\tconst wrapPositions: Array<Position> = [];\n\n\t\twhile ( i < endOffset ) {\n\t\t\tconst child = parent.getChild( i )!;\n\t\t\tconst isText = child.is( '$text' );\n\t\t\tconst isAttribute = child.is( 'attributeElement' );\n\n\t\t\t//\n\t\t\t// (In all examples, assume that `wrapElement` is `<span class=\"foo\">` element.)\n\t\t\t//\n\t\t\t// Check if `wrapElement` can be joined with the wrapped element. One of requirements is having same name.\n\t\t\t// If possible, join elements.\n\t\t\t//\n\t\t\t// <p><span class=\"bar\">abc</span></p>  -->  <p><span class=\"foo bar\">abc</span></p>\n\t\t\t//\n\t\t\tif ( isAttribute && this._wrapAttributeElement( wrapElement, child ) ) {\n\t\t\t\twrapPositions.push( new Position( parent, i ) );\n\t\t\t}\n\t\t\t//\n\t\t\t// Wrap the child if it is not an attribute element or if it is an attribute element that should be inside\n\t\t\t// `wrapElement` (due to priority).\n\t\t\t//\n\t\t\t// <p>abc</p>                   -->  <p><span class=\"foo\">abc</span></p>\n\t\t\t// <p><strong>abc</strong></p>  -->  <p><span class=\"foo\"><strong>abc</strong></span></p>\n\t\t\telse if ( isText || !isAttribute || shouldABeOutsideB( wrapElement, child ) ) {\n\t\t\t\t// Clone attribute.\n\t\t\t\tconst newAttribute = wrapElement._clone();\n\n\t\t\t\t// Wrap current node with new attribute.\n\t\t\t\tchild._remove();\n\t\t\t\tnewAttribute._appendChild( child );\n\n\t\t\t\tparent._insertChild( i, newAttribute );\n\t\t\t\tthis._addToClonedElementsGroup( newAttribute );\n\n\t\t\t\twrapPositions.push( new Position( parent, i ) );\n\t\t\t}\n\t\t\t//\n\t\t\t// If other nested attribute is found and it wasn't wrapped (see above), continue wrapping inside it.\n\t\t\t//\n\t\t\t// <p><a href=\"foo.html\">abc</a></p>  -->  <p><a href=\"foo.html\"><span class=\"foo\">abc</span></a></p>\n\t\t\t//\n\t\t\telse /* if ( isAttribute ) */ {\n\t\t\t\tthis._wrapChildren( child, 0, child.childCount, wrapElement );\n\t\t\t}\n\n\t\t\ti++;\n\t\t}\n\n\t\t// Merge at each wrap.\n\t\tlet offsetChange = 0;\n\n\t\tfor ( const position of wrapPositions ) {\n\t\t\tposition.offset -= offsetChange;\n\n\t\t\t// Do not merge with elements outside selected children.\n\t\t\tif ( position.offset == startOffset ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst newPosition = this.mergeAttributes( position );\n\n\t\t\t// If nodes were merged - other merge offsets will change.\n\t\t\tif ( !newPosition.isEqual( position ) ) {\n\t\t\t\toffsetChange++;\n\t\t\t\tendOffset--;\n\t\t\t}\n\t\t}\n\n\t\treturn Range._createFromParentsAndOffsets( parent, startOffset, parent, endOffset );\n\t}\n\n\t/**\n\t * Unwraps children from provided `unwrapElement`. Only children contained in `parent` element between\n\t * `startOffset` and `endOffset` will be unwrapped.\n\t */\n\tprivate _unwrapChildren( parent: Element, startOffset: number, endOffset: number, unwrapElement: AttributeElement ) {\n\t\tlet i = startOffset;\n\t\tconst unwrapPositions: Array<Position> = [];\n\n\t\t// Iterate over each element between provided offsets inside parent.\n\t\t// We don't use tree walker or range iterator because we will be removing and merging potentially multiple nodes,\n\t\t// so it could get messy. It is safer to it manually in this case.\n\t\twhile ( i < endOffset ) {\n\t\t\tconst child = parent.getChild( i )!;\n\n\t\t\t// Skip all text nodes. There should be no container element's here either.\n\t\t\tif ( !child.is( 'attributeElement' ) ) {\n\t\t\t\ti++;\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t//\n\t\t\t// (In all examples, assume that `unwrapElement` is `<span class=\"foo\">` element.)\n\t\t\t//\n\t\t\t// If the child is similar to the given attribute element, unwrap it - it will be completely removed.\n\t\t\t//\n\t\t\t// <p><span class=\"foo\">abc</span>xyz</p>  -->  <p>abcxyz</p>\n\t\t\t//\n\t\t\tif ( child.isSimilar( unwrapElement ) ) {\n\t\t\t\tconst unwrapped = child.getChildren();\n\t\t\t\tconst count = child.childCount;\n\n\t\t\t\t// Replace wrapper element with its children\n\t\t\t\tchild._remove();\n\t\t\t\tparent._insertChild( i, unwrapped );\n\n\t\t\t\tthis._removeFromClonedElementsGroup( child );\n\n\t\t\t\t// Save start and end position of moved items.\n\t\t\t\tunwrapPositions.push(\n\t\t\t\t\tnew Position( parent, i ),\n\t\t\t\t\tnew Position( parent, i + count )\n\t\t\t\t);\n\n\t\t\t\t// Skip elements that were unwrapped. Assuming there won't be another element to unwrap in child elements.\n\t\t\t\ti += count;\n\t\t\t\tendOffset += count - 1;\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t//\n\t\t\t// If the child is not similar but is an attribute element, try partial unwrapping - remove the same attributes/styles/classes.\n\t\t\t// Partial unwrapping will happen only if the elements have the same name.\n\t\t\t//\n\t\t\t// <p><span class=\"foo bar\">abc</span>xyz</p>  -->  <p><span class=\"bar\">abc</span>xyz</p>\n\t\t\t// <p><i class=\"foo\">abc</i>xyz</p>            -->  <p><i class=\"foo\">abc</i>xyz</p>\n\t\t\t//\n\t\t\tif ( this._unwrapAttributeElement( unwrapElement, child ) ) {\n\t\t\t\tunwrapPositions.push(\n\t\t\t\t\tnew Position( parent, i ),\n\t\t\t\t\tnew Position( parent, i + 1 )\n\t\t\t\t);\n\n\t\t\t\ti++;\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t//\n\t\t\t// If other nested attribute is found, look through it's children for elements to unwrap.\n\t\t\t//\n\t\t\t// <p><i><span class=\"foo\">abc</span></i><p>  -->  <p><i>abc</i><p>\n\t\t\t//\n\t\t\tthis._unwrapChildren( child, 0, child.childCount, unwrapElement );\n\n\t\t\ti++;\n\t\t}\n\n\t\t// Merge at each unwrap.\n\t\tlet offsetChange = 0;\n\n\t\tfor ( const position of unwrapPositions ) {\n\t\t\tposition.offset -= offsetChange;\n\n\t\t\t// Do not merge with elements outside selected children.\n\t\t\tif ( position.offset == startOffset || position.offset == endOffset ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst newPosition = this.mergeAttributes( position );\n\n\t\t\t// If nodes were merged - other merge offsets will change.\n\t\t\tif ( !newPosition.isEqual( position ) ) {\n\t\t\t\toffsetChange++;\n\t\t\t\tendOffset--;\n\t\t\t}\n\t\t}\n\n\t\treturn Range._createFromParentsAndOffsets( parent, startOffset, parent, endOffset );\n\t}\n\n\t/**\n\t * Helper function for `view.writer.wrap`. Wraps range with provided attribute element.\n\t * This method will also merge newly added attribute element with its siblings whenever possible.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-invalid-attribute` when passed attribute element is not\n\t * an instance of {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t *\n\t * @returns New range after wrapping, spanning over wrapping attribute element.\n\t */\n\tprivate _wrapRange( range: Range, attribute: AttributeElement ): Range {\n\t\t// Break attributes at range start and end.\n\t\tconst { start: breakStart, end: breakEnd } = this._breakAttributesRange( range, true );\n\t\tconst parentContainer = breakStart.parent as Element;\n\n\t\t// Wrap all children with attribute.\n\t\tconst newRange = this._wrapChildren( parentContainer, breakStart.offset, breakEnd.offset, attribute );\n\n\t\t// Merge attributes at the both ends and return a new range.\n\t\tconst start = this.mergeAttributes( newRange.start );\n\n\t\t// If start position was merged - move end position back.\n\t\tif ( !start.isEqual( newRange.start ) ) {\n\t\t\tnewRange.end.offset--;\n\t\t}\n\t\tconst end = this.mergeAttributes( newRange.end );\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Helper function for {@link #wrap}. Wraps position with provided attribute element.\n\t * This method will also merge newly added attribute element with its siblings whenever possible.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError} `view-writer-wrap-invalid-attribute` when passed attribute element is not\n\t * an instance of {@link module:engine/view/attributeelement~AttributeElement AttributeElement}.\n\t *\n\t * @returns New position after wrapping.\n\t */\n\tprivate _wrapPosition( position: Position, attribute: AttributeElement ): Position {\n\t\t// Return same position when trying to wrap with attribute similar to position parent.\n\t\tif ( attribute.isSimilar( position.parent as any ) ) {\n\t\t\treturn movePositionToTextNode( position.clone() );\n\t\t}\n\n\t\t// When position is inside text node - break it and place new position between two text nodes.\n\t\tif ( position.parent.is( '$text' ) ) {\n\t\t\tposition = breakTextNode( position );\n\t\t}\n\n\t\t// Create fake element that will represent position, and will not be merged with other attributes.\n\t\tconst fakeElement = this.createAttributeElement( '_wrapPosition-fake-element' );\n\t\t( fakeElement as any )._priority = Number.POSITIVE_INFINITY;\n\t\tfakeElement.isSimilar = () => false;\n\n\t\t// Insert fake element in position location.\n\t\t( position.parent as Element )._insertChild( position.offset, fakeElement );\n\n\t\t// Range around inserted fake attribute element.\n\t\tconst wrapRange = new Range( position, position.getShiftedBy( 1 ) );\n\n\t\t// Wrap fake element with attribute (it will also merge if possible).\n\t\tthis.wrap( wrapRange, attribute );\n\n\t\t// Remove fake element and place new position there.\n\t\tconst newPosition = new Position( fakeElement.parent!, fakeElement.index! );\n\t\tfakeElement._remove();\n\n\t\t// If position is placed between text nodes - merge them and return position inside.\n\t\tconst nodeBefore = newPosition.nodeBefore;\n\t\tconst nodeAfter = newPosition.nodeAfter;\n\n\t\tif ( nodeBefore instanceof Text && nodeAfter instanceof Text ) {\n\t\t\treturn mergeTextNodes( nodeBefore, nodeAfter );\n\t\t}\n\n\t\t// If position is next to text node - move position inside.\n\t\treturn movePositionToTextNode( newPosition );\n\t}\n\n\t/**\n\t * Wraps one {@link module:engine/view/attributeelement~AttributeElement AttributeElement} into another by\n\t * merging them if possible. When merging is possible - all attributes, styles and classes are moved from wrapper\n\t * element to element being wrapped.\n\t *\n\t * @param wrapper Wrapper AttributeElement.\n\t * @param toWrap AttributeElement to wrap using wrapper element.\n\t * @returns Returns `true` if elements are merged.\n\t */\n\tprivate _wrapAttributeElement( wrapper: AttributeElement, toWrap: AttributeElement ): boolean {\n\t\tif ( !canBeJoined( wrapper, toWrap ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Can't merge if name or priority differs.\n\t\tif ( wrapper.name !== toWrap.name || wrapper.priority !== toWrap.priority ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if attributes can be merged.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If some attributes are different we cannot wrap.\n\t\t\tif ( toWrap.hasAttribute( key ) && toWrap.getAttribute( key ) !== wrapper.getAttribute( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if styles can be merged.\n\t\tfor ( const key of wrapper.getStyleNames() ) {\n\t\t\tif ( toWrap.hasStyle( key ) && toWrap.getStyle( key ) !== wrapper.getStyle( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Move all attributes/classes/styles from wrapper to wrapped AttributeElement.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Move only these attributes that are not present - other are similar.\n\t\t\tif ( !toWrap.hasAttribute( key ) ) {\n\t\t\t\tthis.setAttribute( key, wrapper.getAttribute( key )!, toWrap );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const key of wrapper.getStyleNames() ) {\n\t\t\tif ( !toWrap.hasStyle( key ) ) {\n\t\t\t\tthis.setStyle( key, wrapper.getStyle( key )!, toWrap );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const key of wrapper.getClassNames() ) {\n\t\t\tif ( !toWrap.hasClass( key ) ) {\n\t\t\t\tthis.addClass( key, toWrap );\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Unwraps {@link module:engine/view/attributeelement~AttributeElement AttributeElement} from another by removing\n\t * corresponding attributes, classes and styles. All attributes, classes and styles from wrapper should be present\n\t * inside element being unwrapped.\n\t *\n\t * @param wrapper Wrapper AttributeElement.\n\t * @param toUnwrap AttributeElement to unwrap using wrapper element.\n\t * @returns Returns `true` if elements are unwrapped.\n\t **/\n\tprivate _unwrapAttributeElement( wrapper: AttributeElement, toUnwrap: AttributeElement ): boolean {\n\t\tif ( !canBeJoined( wrapper, toUnwrap ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Can't unwrap if name or priority differs.\n\t\tif ( wrapper.name !== toUnwrap.name || wrapper.priority !== toUnwrap.priority ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if AttributeElement has all wrapper attributes.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If some attributes are missing or different we cannot unwrap.\n\t\t\tif ( !toUnwrap.hasAttribute( key ) || toUnwrap.getAttribute( key ) !== wrapper.getAttribute( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Check if AttributeElement has all wrapper classes.\n\t\tif ( !toUnwrap.hasClass( ...wrapper.getClassNames() ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Check if AttributeElement has all wrapper styles.\n\t\tfor ( const key of wrapper.getStyleNames() ) {\n\t\t\t// If some styles are missing or different we cannot unwrap.\n\t\t\tif ( !toUnwrap.hasStyle( key ) || toUnwrap.getStyle( key ) !== wrapper.getStyle( key ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\t// Remove all wrapper's attributes from unwrapped element.\n\t\tfor ( const key of wrapper.getAttributeKeys() ) {\n\t\t\t// Classes and styles should be checked separately.\n\t\t\tif ( key === 'class' || key === 'style' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tthis.removeAttribute( key, toUnwrap );\n\t\t}\n\n\t\t// Remove all wrapper's classes from unwrapped element.\n\t\tthis.removeClass( Array.from( wrapper.getClassNames() ), toUnwrap );\n\n\t\t// Remove all wrapper's styles from unwrapped element.\n\t\tthis.removeStyle( Array.from( wrapper.getStyleNames() ), toUnwrap );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Helper function used by other `DowncastWriter` methods. Breaks attribute elements at the boundaries of given range.\n\t *\n\t * @param range Range which `start` and `end` positions will be used to break attributes.\n\t * @param forceSplitText If set to `true`, will break text nodes even if they are directly in container element.\n\t * This behavior will result in incorrect view state, but is needed by other view writing methods which then fixes view state.\n\t * @returns New range with located at break positions.\n\t */\n\tprivate _breakAttributesRange( range: Range, forceSplitText: boolean = false ) {\n\t\tconst rangeStart = range.start;\n\t\tconst rangeEnd = range.end;\n\n\t\tvalidateRangeContainer( range, this.document );\n\n\t\t// Break at the collapsed position. Return new collapsed range.\n\t\tif ( range.isCollapsed ) {\n\t\t\tconst position = this._breakAttributes( range.start, forceSplitText );\n\n\t\t\treturn new Range( position, position );\n\t\t}\n\n\t\tconst breakEnd = this._breakAttributes( rangeEnd, forceSplitText );\n\t\tconst count = ( breakEnd.parent as Element ).childCount;\n\t\tconst breakStart = this._breakAttributes( rangeStart, forceSplitText );\n\n\t\t// Calculate new break end offset.\n\t\tbreakEnd.offset += ( breakEnd.parent as Element ).childCount - count;\n\n\t\treturn new Range( breakStart, breakEnd );\n\t}\n\n\t/**\n\t * Helper function used by other `DowncastWriter` methods. Breaks attribute elements at given position.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-cannot-break-empty-element` when break position\n\t * is placed inside {@link module:engine/view/emptyelement~EmptyElement EmptyElement}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-cannot-break-ui-element` when break position\n\t * is placed inside {@link module:engine/view/uielement~UIElement UIElement}.\n\t *\n\t * @param position Position where to break attributes.\n\t * @param forceSplitText If set to `true`, will break text nodes even if they are directly in container element.\n\t * This behavior will result in incorrect view state, but is needed by other view writing methods which then fixes view state.\n\t * @returns New position after breaking the attributes.\n\t */\n\tprivate _breakAttributes( position: Position, forceSplitText: boolean = false ): Position {\n\t\tconst positionOffset = position.offset;\n\t\tconst positionParent = position.parent;\n\n\t\t// If position is placed inside EmptyElement - throw an exception as we cannot break inside.\n\t\tif ( position.parent.is( 'emptyElement' ) ) {\n\t\t\t/**\n\t\t\t * Cannot break an `EmptyElement` instance.\n\t\t\t *\n\t\t\t * This error is thrown if\n\t\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes `DowncastWriter#breakAttributes()`}\n\t\t\t * was executed in an incorrect position.\n\t\t\t *\n\t\t\t * @error view-writer-cannot-break-empty-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-cannot-break-empty-element', this.document );\n\t\t}\n\n\t\t// If position is placed inside UIElement - throw an exception as we cannot break inside.\n\t\tif ( position.parent.is( 'uiElement' ) ) {\n\t\t\t/**\n\t\t\t * Cannot break a `UIElement` instance.\n\t\t\t *\n\t\t\t * This error is thrown if\n\t\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes `DowncastWriter#breakAttributes()`}\n\t\t\t * was executed in an incorrect position.\n\t\t\t *\n\t\t\t * @error view-writer-cannot-break-ui-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-cannot-break-ui-element', this.document );\n\t\t}\n\n\t\t// If position is placed inside RawElement - throw an exception as we cannot break inside.\n\t\tif ( position.parent.is( 'rawElement' ) ) {\n\t\t\t/**\n\t\t\t * Cannot break a `RawElement` instance.\n\t\t\t *\n\t\t\t * This error is thrown if\n\t\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#breakAttributes `DowncastWriter#breakAttributes()`}\n\t\t\t * was executed in an incorrect position.\n\t\t\t *\n\t\t\t * @error view-writer-cannot-break-raw-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-cannot-break-raw-element', this.document );\n\t\t}\n\n\t\t// There are no attributes to break and text nodes breaking is not forced.\n\t\tif ( !forceSplitText && positionParent.is( '$text' ) && isContainerOrFragment( positionParent.parent! ) ) {\n\t\t\treturn position.clone();\n\t\t}\n\n\t\t// Position's parent is container, so no attributes to break.\n\t\tif ( isContainerOrFragment( positionParent ) ) {\n\t\t\treturn position.clone();\n\t\t}\n\n\t\t// Break text and start again in new position.\n\t\tif ( positionParent.is( '$text' ) ) {\n\t\t\treturn this._breakAttributes( breakTextNode( position ), forceSplitText );\n\t\t}\n\n\t\tconst length = ( positionParent as any ).childCount;\n\n\t\t// <p>foo<b><u>bar{}</u></b></p>\n\t\t// <p>foo<b><u>bar</u>[]</b></p>\n\t\t// <p>foo<b><u>bar</u></b>[]</p>\n\t\tif ( positionOffset == length ) {\n\t\t\tconst newPosition = new Position( positionParent.parent as any, ( positionParent as any ).index + 1 );\n\n\t\t\treturn this._breakAttributes( newPosition, forceSplitText );\n\t\t} else {\n\t\t\t// <p>foo<b><u>{}bar</u></b></p>\n\t\t\t// <p>foo<b>[]<u>bar</u></b></p>\n\t\t\t// <p>foo{}<b><u>bar</u></b></p>\n\t\t\tif ( positionOffset === 0 ) {\n\t\t\t\tconst newPosition = new Position( positionParent.parent as Element, ( positionParent as any ).index );\n\n\t\t\t\treturn this._breakAttributes( newPosition, forceSplitText );\n\t\t\t}\n\t\t\t// <p>foo<b><u>b{}ar</u></b></p>\n\t\t\t// <p>foo<b><u>b[]ar</u></b></p>\n\t\t\t// <p>foo<b><u>b</u>[]<u>ar</u></b></p>\n\t\t\t// <p>foo<b><u>b</u></b>[]<b><u>ar</u></b></p>\n\t\t\telse {\n\t\t\t\tconst offsetAfter = ( positionParent as any ).index + 1;\n\n\t\t\t\t// Break element.\n\t\t\t\tconst clonedNode = ( positionParent as any )._clone();\n\n\t\t\t\t// Insert cloned node to position's parent node.\n\t\t\t\t( positionParent.parent as any )._insertChild( offsetAfter, clonedNode );\n\t\t\t\tthis._addToClonedElementsGroup( clonedNode );\n\n\t\t\t\t// Get nodes to move.\n\t\t\t\tconst count = ( positionParent as any ).childCount - positionOffset;\n\t\t\t\tconst nodesToMove = ( positionParent as any )._removeChildren( positionOffset, count );\n\n\t\t\t\t// Move nodes to cloned node.\n\t\t\t\tclonedNode._appendChild( nodesToMove );\n\n\t\t\t\t// Create new position to work on.\n\t\t\t\tconst newPosition = new Position( ( positionParent as any ).parent, offsetAfter );\n\n\t\t\t\treturn this._breakAttributes( newPosition, forceSplitText );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Stores the information that an {@link module:engine/view/attributeelement~AttributeElement attribute element} was\n\t * added to the tree. Saves the reference to the group in the given element and updates the group, so other elements\n\t * from the group now keep a reference to the given attribute element.\n\t *\n\t * The clones group can be obtained using {@link module:engine/view/attributeelement~AttributeElement#getElementsWithSameId}.\n\t *\n\t * Does nothing if added element has no {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t *\n\t * @param element Attribute element to save.\n\t */\n\tprivate _addToClonedElementsGroup( element: Node ): void {\n\t\t// Add only if the element is in document tree.\n\t\tif ( !element.root.is( 'rootElement' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Traverse the element's children recursively to find other attribute elements that also might got inserted.\n\t\t// The loop is at the beginning so we can make fast returns later in the code.\n\t\tif ( element.is( 'element' ) ) {\n\t\t\tfor ( const child of element.getChildren() ) {\n\t\t\t\tthis._addToClonedElementsGroup( child );\n\t\t\t}\n\t\t}\n\n\t\tconst id = ( element as any ).id;\n\n\t\tif ( !id ) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet group = this._cloneGroups.get( id );\n\n\t\tif ( !group ) {\n\t\t\tgroup = new Set();\n\t\t\tthis._cloneGroups.set( id, group );\n\t\t}\n\n\t\tgroup.add( element as AttributeElement );\n\t\t( element as any )._clonesGroup = group;\n\t}\n\n\t/**\n\t * Removes all the information about the given {@link module:engine/view/attributeelement~AttributeElement attribute element}\n\t * from its clones group.\n\t *\n\t * Keep in mind, that the element will still keep a reference to the group (but the group will not keep a reference to it).\n\t * This allows to reference the whole group even if the element was already removed from the tree.\n\t *\n\t * Does nothing if the element has no {@link module:engine/view/attributeelement~AttributeElement#id id}.\n\t *\n\t * @param element Attribute element to remove.\n\t */\n\tprivate _removeFromClonedElementsGroup( element: Node ) {\n\t\t// Traverse the element's children recursively to find other attribute elements that also got removed.\n\t\t// The loop is at the beginning so we can make fast returns later in the code.\n\t\tif ( element.is( 'element' ) ) {\n\t\t\tfor ( const child of element.getChildren() ) {\n\t\t\t\tthis._removeFromClonedElementsGroup( child );\n\t\t\t}\n\t\t}\n\n\t\tconst id = ( element as any ).id;\n\n\t\tif ( !id ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst group = this._cloneGroups.get( id );\n\n\t\tif ( !group ) {\n\t\t\treturn;\n\t\t}\n\n\t\tgroup.delete( element as AttributeElement );\n\t\t// Not removing group from element on purpose!\n\t\t// If other parts of code have reference to this element, they will be able to get references to other elements from the group.\n\t}\n}\n\n// Helper function for `view.writer.wrap`. Checks if given element has any children that are not ui elements.\nfunction _hasNonUiChildren( parent: Element ): boolean {\n\treturn Array.from( parent.getChildren() ).some( child => !child.is( 'uiElement' ) );\n}\n\n/**\n * The `attribute` passed to {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#wrap()`}\n * must be an instance of {@link module:engine/view/attributeelement~AttributeElement `AttributeElement`}.\n *\n * @error view-writer-wrap-invalid-attribute\n */\n\n/**\n * Returns first parent container of specified {@link module:engine/view/position~Position Position}.\n * Position's parent node is checked as first, then next parents are checked.\n * Note that {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment} is treated like a container.\n *\n * @param position Position used as a start point to locate parent container.\n * @returns Parent container element or `undefined` if container is not found.\n */\nfunction getParentContainer( position: Position ): ContainerElement | DocumentFragment | undefined {\n\tlet parent = position.parent;\n\n\twhile ( !isContainerOrFragment( parent ) ) {\n\t\tif ( !parent ) {\n\t\t\treturn undefined;\n\t\t}\n\n\t\tparent = parent.parent as any;\n\t}\n\n\treturn ( parent as ContainerElement | DocumentFragment );\n}\n\n/**\n * Checks if first {@link module:engine/view/attributeelement~AttributeElement AttributeElement} provided to the function\n * can be wrapped outside second element. It is done by comparing elements'\n * {@link module:engine/view/attributeelement~AttributeElement#priority priorities}, if both have same priority\n * {@link module:engine/view/element~Element#getIdentity identities} are compared.\n */\nfunction shouldABeOutsideB( a: AttributeElement, b: AttributeElement ): boolean {\n\tif ( a.priority < b.priority ) {\n\t\treturn true;\n\t} else if ( a.priority > b.priority ) {\n\t\treturn false;\n\t}\n\n\t// When priorities are equal and names are different - use identities.\n\treturn a.getIdentity() < b.getIdentity();\n}\n\n/**\n * Returns new position that is moved to near text node. Returns same position if there is no text node before of after\n * specified position.\n *\n * ```html\n * <p>foo[]</p>  ->  <p>foo{}</p>\n * <p>[]foo</p>  ->  <p>{}foo</p>\n * ```\n *\n * @returns Position located inside text node or same position if there is no text nodes\n * before or after position location.\n */\nfunction movePositionToTextNode( position: Position ): Position {\n\tconst nodeBefore = position.nodeBefore;\n\n\tif ( nodeBefore && nodeBefore.is( '$text' ) ) {\n\t\treturn new Position( nodeBefore, nodeBefore.data.length );\n\t}\n\n\tconst nodeAfter = position.nodeAfter;\n\n\tif ( nodeAfter && nodeAfter.is( '$text' ) ) {\n\t\treturn new Position( nodeAfter, 0 );\n\t}\n\n\treturn position;\n}\n\n/**\n * Breaks text node into two text nodes when possible.\n *\n * ```html\n * <p>foo{}bar</p> -> <p>foo[]bar</p>\n * <p>{}foobar</p> -> <p>[]foobar</p>\n * <p>foobar{}</p> -> <p>foobar[]</p>\n * ```\n *\n * @param position Position that need to be placed inside text node.\n * @returns New position after breaking text node.\n */\nfunction breakTextNode( position: Position ): Position {\n\tif ( position.offset == ( position.parent as Text ).data.length ) {\n\t\treturn new Position( position.parent.parent as any, ( position.parent as Text ).index! + 1 );\n\t}\n\n\tif ( position.offset === 0 ) {\n\t\treturn new Position( position.parent.parent as any, ( position.parent as Text ).index! );\n\t}\n\n\t// Get part of the text that need to be moved.\n\tconst textToMove = ( position.parent as Text ).data.slice( position.offset );\n\n\t// Leave rest of the text in position's parent.\n\t( position.parent as Text )._data = ( position.parent as Text ).data.slice( 0, position.offset );\n\n\t// Insert new text node after position's parent text node.\n\t( position.parent.parent as any )._insertChild(\n\t\t( position.parent as Text ).index! + 1,\n\t\tnew Text( position.root.document, textToMove )\n\t);\n\n\t// Return new position between two newly created text nodes.\n\treturn new Position( position.parent.parent as any, ( position.parent as Text ).index! + 1 );\n}\n\n/**\n * Merges two text nodes into first node. Removes second node and returns merge position.\n *\n * @param t1 First text node to merge. Data from second text node will be moved at the end of this text node.\n * @param t2 Second text node to merge. This node will be removed after merging.\n * @returns Position after merging text nodes.\n */\nfunction mergeTextNodes( t1: Text, t2: Text ): Position {\n\t// Merge text data into first text node and remove second one.\n\tconst nodeBeforeLength = t1.data.length;\n\tt1._data += t2.data;\n\tt2._remove();\n\n\treturn new Position( t1, nodeBeforeLength );\n}\n\nconst validNodesToInsert = [ Text, AttributeElement, ContainerElement, EmptyElement, RawElement, UIElement ];\n\n/**\n * Checks if provided nodes are valid to insert.\n *\n * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-insert-invalid-node` when nodes to insert\n * contains instances that are not supported ones (see error description for valid ones.\n */\nfunction validateNodesToInsert( nodes: Iterable<Node>, errorContext: Document ): void {\n\tfor ( const node of nodes ) {\n\t\tif ( !validNodesToInsert.some( ( validNode => node instanceof validNode ) ) ) { // eslint-disable-line no-use-before-define\n\t\t\t/**\n\t\t\t * One of the nodes to be inserted is of an invalid type.\n\t\t\t *\n\t\t\t * Nodes to be inserted with {@link module:engine/view/downcastwriter~DowncastWriter#insert `DowncastWriter#insert()`} should be\n\t\t\t * of the following types:\n\t\t\t *\n\t\t\t * * {@link module:engine/view/attributeelement~AttributeElement AttributeElement},\n\t\t\t * * {@link module:engine/view/containerelement~ContainerElement ContainerElement},\n\t\t\t * * {@link module:engine/view/emptyelement~EmptyElement EmptyElement},\n\t\t\t * * {@link module:engine/view/uielement~UIElement UIElement},\n\t\t\t * * {@link module:engine/view/rawelement~RawElement RawElement},\n\t\t\t * * {@link module:engine/view/text~Text Text}.\n\t\t\t *\n\t\t\t * @error view-writer-insert-invalid-node-type\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-writer-insert-invalid-node-type', errorContext );\n\t\t}\n\n\t\tif ( !node.is( '$text' ) ) {\n\t\t\tvalidateNodesToInsert( ( node as Element ).getChildren(), errorContext );\n\t\t}\n\t}\n}\n\n/**\n * Checks if node is ContainerElement or DocumentFragment, because in most cases they should be treated the same way.\n *\n * @returns Returns `true` if node is instance of ContainerElement or DocumentFragment.\n */\nfunction isContainerOrFragment( node: Node | DocumentFragment ): boolean {\n\treturn node && ( node.is( 'containerElement' ) || node.is( 'documentFragment' ) );\n}\n\n/**\n * Checks if {@link module:engine/view/range~Range#start range start} and {@link module:engine/view/range~Range#end range end} are placed\n * inside same {@link module:engine/view/containerelement~ContainerElement container element}.\n * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `view-writer-invalid-range-container` when validation fails.\n */\nfunction validateRangeContainer( range: Range, errorContext: Document ) {\n\tconst startContainer = getParentContainer( range.start );\n\tconst endContainer = getParentContainer( range.end );\n\n\tif ( !startContainer || !endContainer || startContainer !== endContainer ) {\n\t\t/**\n\t\t * The container of the given range is invalid.\n\t\t *\n\t\t * This may happen if {@link module:engine/view/range~Range#start range start} and\n\t\t * {@link module:engine/view/range~Range#end range end} positions are not placed inside the same container element or\n\t\t * a parent container for these positions cannot be found.\n\t\t *\n\t\t * Methods like {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#remove()`},\n\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#clean()`},\n\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#wrap()`},\n\t\t * {@link module:engine/view/downcastwriter~DowncastWriter#wrap `DowncastWriter#unwrap()`} need to be called\n\t\t * on a range that has its start and end positions located in the same container element. Both positions can be\n\t\t * nested within other elements (e.g. an attribute element) but the closest container ancestor must be the same.\n\t\t *\n\t\t * @error view-writer-invalid-range-container\n\t\t */\n\t\tthrow new CKEditorError( 'view-writer-invalid-range-container', errorContext );\n\t}\n}\n\n/**\n * Checks if two attribute elements can be joined together. Elements can be joined together if, and only if\n * they do not have ids specified.\n */\nfunction canBeJoined( a: AttributeElement, b: AttributeElement ) {\n\treturn a.id === null && b.id === null;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { keyCodes, isText, type KeystrokeInfo } from '@ckeditor/ckeditor5-utils';\nimport type View from './view';\nimport type DomEventData from './observer/domeventdata';\nimport type { ViewDocumentArrowKeyEvent } from './observer/arrowkeysobserver';\n\n/**\n * Set of utilities related to handling block and inline fillers.\n *\n * Browsers do not allow to put caret in elements which does not have height. Because of it, we need to fill all\n * empty elements which should be selectable with elements or characters called \"fillers\". Unfortunately there is no one\n * universal filler, this is why two types are uses:\n *\n * * Block filler is an element which fill block elements, like `<p>`. CKEditor uses `<br>` as a block filler during the editing,\n * as browsers do natively. So instead of an empty `<p>` there will be `<p><br></p>`. The advantage of block filler is that\n * it is transparent for the selection, so when the caret is before the `<br>` and user presses right arrow he will be\n * moved to the next paragraph, not after the `<br>`. The disadvantage is that it breaks a block, so it can not be used\n * in the middle of a line of text. The {@link module:engine/view/filler~BR_FILLER `<br>` filler} can be replaced with any other\n * character in the data output, for instance {@link module:engine/view/filler~NBSP_FILLER non-breaking space} or\n * {@link module:engine/view/filler~MARKED_NBSP_FILLER marked non-breaking space}.\n *\n * * Inline filler is a filler which does not break a line of text, so it can be used inside the text, for instance in the empty\n * `<b>` surrendered by text: `foo<b></b>bar`, if we want to put the caret there. CKEditor uses a sequence of the zero-width\n * spaces as an {@link module:engine/view/filler~INLINE_FILLER inline filler} having the predetermined\n * {@link module:engine/view/filler~INLINE_FILLER_LENGTH length}. A sequence is used, instead of a single character to\n * avoid treating random zero-width spaces as the inline filler. Disadvantage of the inline filler is that it is not\n * transparent for the selection. The arrow key moves the caret between zero-width spaces characters, so the additional\n * code is needed to handle the caret.\n *\n * Both inline and block fillers are handled by the {@link module:engine/view/renderer~Renderer renderer} and are not present in the\n * view.\n *\n * @module engine/view/filler\n */\n\n/**\n * Non-breaking space filler creator. This function creates the `&nbsp;` text node.\n * It defines how the filler is created.\n *\n * @see module:engine/view/filler~MARKED_NBSP_FILLER\n * @see module:engine/view/filler~BR_FILLER\n */\nexport const NBSP_FILLER = ( domDocument: Document ): Text => domDocument.createTextNode( '\\u00A0' );\n\n/**\n * Marked non-breaking space filler creator. This function creates the `<span data-cke-filler=\"true\">&nbsp;</span>` element.\n * It defines how the filler is created.\n *\n * @see module:engine/view/filler~NBSP_FILLER\n * @see module:engine/view/filler~BR_FILLER\n */\nexport const MARKED_NBSP_FILLER = ( domDocument: Document ): HTMLSpanElement => {\n\tconst span = domDocument.createElement( 'span' );\n\tspan.dataset.ckeFiller = 'true';\n\tspan.innerText = '\\u00A0';\n\n\treturn span;\n};\n\n/**\n * `<br>` filler creator. This function creates the `<br data-cke-filler=\"true\">` element.\n * It defines how the filler is created.\n *\n * @see module:engine/view/filler~NBSP_FILLER\n * @see module:engine/view/filler~MARKED_NBSP_FILLER\n */\nexport const BR_FILLER = ( domDocument: Document ): HTMLBRElement => {\n\tconst fillerBr = domDocument.createElement( 'br' );\n\tfillerBr.dataset.ckeFiller = 'true';\n\n\treturn fillerBr;\n};\n\n/**\n * Length of the {@link module:engine/view/filler~INLINE_FILLER INLINE_FILLER}.\n */\nexport const INLINE_FILLER_LENGTH = 7;\n\n/**\n * Inline filler which is a sequence of the word joiners.\n */\nexport const INLINE_FILLER = '\\u2060'.repeat( INLINE_FILLER_LENGTH );\n\n/**\n * Checks if the node is a text node which starts with the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n *\n * ```ts\n * startsWithFiller( document.createTextNode( INLINE_FILLER ) ); // true\n * startsWithFiller( document.createTextNode( INLINE_FILLER + 'foo' ) ); // true\n * startsWithFiller( document.createTextNode( 'foo' ) ); // false\n * startsWithFiller( document.createElement( 'p' ) ); // false\n * ```\n *\n * @param domNode DOM node.\n * @returns True if the text node starts with the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n */\nexport function startsWithFiller( domNode: Node ): boolean {\n\treturn isText( domNode ) && ( domNode.data.substr( 0, INLINE_FILLER_LENGTH ) === INLINE_FILLER );\n}\n\n/**\n * Checks if the text node contains only the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n *\n * ```ts\n * isInlineFiller( document.createTextNode( INLINE_FILLER ) ); // true\n * isInlineFiller( document.createTextNode( INLINE_FILLER + 'foo' ) ); // false\n * ```\n *\n * @param domText DOM text node.\n * @returns True if the text node contains only the {@link module:engine/view/filler~INLINE_FILLER inline filler}.\n */\nexport function isInlineFiller( domText: Text ): boolean {\n\treturn domText.data.length == INLINE_FILLER_LENGTH && startsWithFiller( domText );\n}\n\n/**\n * Get string data from the text node, removing an {@link module:engine/view/filler~INLINE_FILLER inline filler} from it,\n * if text node contains it.\n *\n * ```ts\n * getDataWithoutFiller( document.createTextNode( INLINE_FILLER + 'foo' ) ) == 'foo' // true\n * getDataWithoutFiller( document.createTextNode( 'foo' ) ) == 'foo' // true\n * ```\n *\n * @param domText DOM text node, possible with inline filler.\n * @returns Data without filler.\n */\nexport function getDataWithoutFiller( domText: Text ): string {\n\tif ( startsWithFiller( domText ) ) {\n\t\treturn domText.data.slice( INLINE_FILLER_LENGTH );\n\t} else {\n\t\treturn domText.data;\n\t}\n}\n\n/**\n * Assign key observer which move cursor from the end of the inline filler to the beginning of it when\n * the left arrow is pressed, so the filler does not break navigation.\n *\n * @param view View controller instance we should inject quirks handling on.\n */\nexport function injectQuirksHandling( view: View ): void {\n\tview.document.on<ViewDocumentArrowKeyEvent>( 'arrowKey', jumpOverInlineFiller, { priority: 'low' } );\n}\n\n/**\n * Move cursor from the end of the inline filler to the beginning of it when, so the filler does not break navigation.\n */\nfunction jumpOverInlineFiller( evt: unknown, data: DomEventData & KeystrokeInfo ) {\n\tif ( data.keyCode == keyCodes.arrowleft ) {\n\t\tconst domSelection = data.domTarget.ownerDocument.defaultView!.getSelection()!;\n\n\t\tif ( domSelection.rangeCount == 1 && domSelection.getRangeAt( 0 ).collapsed ) {\n\t\t\tconst domParent = domSelection.getRangeAt( 0 ).startContainer;\n\t\t\tconst domOffset = domSelection.getRangeAt( 0 ).startOffset;\n\n\t\t\tif ( startsWithFiller( domParent ) && domOffset <= INLINE_FILLER_LENGTH ) {\n\t\t\t\tdomSelection.collapse( domParent, 0 );\n\t\t\t}\n\t\t}\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./renderer.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/renderer\n */\n\nimport ViewText from './text';\nimport ViewPosition from './position';\nimport { INLINE_FILLER, INLINE_FILLER_LENGTH, startsWithFiller, isInlineFiller } from './filler';\n\nimport {\n\tCKEditorError,\n\tObservableMixin,\n\tdiff,\n\tenv,\n\tfastDiff,\n\tinsertAt,\n\tisComment,\n\tisNode,\n\tisText,\n\tremove,\n\ttype DiffResult,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { ChangeType } from './document';\nimport type DocumentSelection from './documentselection';\nimport type DomConverter from './domconverter';\nimport type ViewElement from './element';\nimport type ViewNode from './node';\n\nimport '../../theme/renderer.css';\n\ntype DomText = globalThis.Text;\ntype DomNode = globalThis.Node;\ntype DomDocument = globalThis.Document;\ntype DomElement = globalThis.HTMLElement;\ntype DomSelection = globalThis.Selection;\n\n/**\n * Renderer is responsible for updating the DOM structure and the DOM selection based on\n * the {@link module:engine/view/renderer~Renderer#markToSync information about updated view nodes}.\n * In other words, it renders the view to the DOM.\n *\n * Its main responsibility is to make only the necessary, minimal changes to the DOM. However, unlike in many\n * virtual DOM implementations, the primary reason for doing minimal changes is not the performance but ensuring\n * that native editing features such as text composition, autocompletion, spell checking, selection's x-index are\n * affected as little as possible.\n *\n * Renderer uses {@link module:engine/view/domconverter~DomConverter} to transform view nodes and positions\n * to and from the DOM.\n */\nexport default class Renderer extends ObservableMixin() {\n\t/**\n\t * Set of DOM Documents instances.\n\t */\n\tpublic readonly domDocuments: Set<DomDocument> = new Set();\n\n\t/**\n\t * Converter instance.\n\t */\n\tpublic readonly domConverter: DomConverter;\n\n\t/**\n\t * Set of nodes which attributes changed and may need to be rendered.\n\t */\n\tpublic readonly markedAttributes: Set<ViewElement> = new Set();\n\n\t/**\n\t * Set of elements which child lists changed and may need to be rendered.\n\t */\n\tpublic readonly markedChildren: Set<ViewElement> = new Set();\n\n\t/**\n\t * Set of text nodes which text data changed and may need to be rendered.\n\t */\n\tpublic readonly markedTexts: Set<ViewNode> = new Set();\n\n\t/**\n\t * View selection. Renderer updates DOM selection based on the view selection.\n\t */\n\tpublic readonly selection: DocumentSelection;\n\n\t/**\n\t * Indicates if the view document is focused and selection can be rendered. Selection will not be rendered if\n\t * this is set to `false`.\n\t *\n\t * @observable\n\t */\n\tdeclare public readonly isFocused: boolean;\n\n\t/**\n\t * Indicates whether the user is making a selection in the document (e.g. holding the mouse button and moving the cursor).\n\t * When they stop selecting, the property goes back to `false`.\n\t *\n\t * Note: In some browsers, the renderer will stop rendering the selection and inline fillers while the user is making\n\t * a selection to avoid glitches in DOM selection\n\t * (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t *\n\t * @observable\n\t */\n\tdeclare public readonly isSelecting: boolean;\n\n\t/**\n\t * True if composition is in progress inside the document.\n\t *\n\t * This property is bound to the {@link module:engine/view/document~Document#isComposing `Document#isComposing`} property.\n\t *\n\t * @observable\n\t */\n\tdeclare public readonly isComposing: boolean;\n\n\t/**\n\t * The text node in which the inline filler was rendered.\n\t */\n\tprivate _inlineFiller: DomText | null = null;\n\n\t/**\n\t * DOM element containing fake selection.\n\t */\n\tprivate _fakeSelectionContainer: DomElement | null = null;\n\n\t/**\n\t * Creates a renderer instance.\n\t *\n\t * @param domConverter Converter instance.\n\t * @param selection View selection.\n\t */\n\tconstructor( domConverter: DomConverter, selection: DocumentSelection ) {\n\t\tsuper();\n\n\t\tthis.domConverter = domConverter;\n\t\tthis.selection = selection;\n\n\t\tthis.set( 'isFocused', false );\n\t\tthis.set( 'isSelecting', false );\n\n\t\t// Rendering the selection and inline filler manipulation should be postponed in (non-Android) Blink until the user finishes\n\t\t// creating the selection in DOM to avoid accidental selection collapsing\n\t\t// (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t\t// When the user stops selecting, all pending changes should be rendered ASAP, though.\n\t\tif ( env.isBlink && !env.isAndroid ) {\n\t\t\tthis.on<ObservableChangeEvent>( 'change:isSelecting', () => {\n\t\t\t\tif ( !this.isSelecting ) {\n\t\t\t\t\tthis.render();\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\tthis.set( 'isComposing', false );\n\n\t\tthis.on<ObservableChangeEvent>( 'change:isComposing', () => {\n\t\t\tif ( !this.isComposing ) {\n\t\t\t\tthis.render();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Marks a view node to be updated in the DOM by {@link #render `render()`}.\n\t *\n\t * Note that only view nodes whose parents have corresponding DOM elements need to be marked to be synchronized.\n\t *\n\t * @see #markedAttributes\n\t * @see #markedChildren\n\t * @see #markedTexts\n\t *\n\t * @param type Type of the change.\n\t * @param node ViewNode to be marked.\n\t */\n\tpublic markToSync( type: ChangeType, node: ViewNode ): void {\n\t\tif ( type === 'text' ) {\n\t\t\tif ( this.domConverter.mapViewToDom( node.parent! ) ) {\n\t\t\t\tthis.markedTexts.add( node );\n\t\t\t}\n\t\t} else {\n\t\t\t// If the node has no DOM element it is not rendered yet,\n\t\t\t// its children/attributes do not need to be marked to be sync.\n\t\t\tif ( !this.domConverter.mapViewToDom( node as ViewElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( type === 'attributes' ) {\n\t\t\t\tthis.markedAttributes.add( node as ViewElement );\n\t\t\t} else if ( type === 'children' ) {\n\t\t\t\tthis.markedChildren.add( node as ViewElement );\n\t\t\t} else {\n\t\t\t\t// eslint-disable-next-line @typescript-eslint/no-unused-vars\n\t\t\t\tconst unreachable: never = type;\n\n\t\t\t\t/**\n\t\t\t\t * Unknown type passed to Renderer.markToSync.\n\t\t\t\t *\n\t\t\t\t * @error view-renderer-unknown-type\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'view-renderer-unknown-type', this );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Renders all buffered changes ({@link #markedAttributes}, {@link #markedChildren} and {@link #markedTexts}) and\n\t * the current view selection (if needed) to the DOM by applying a minimal set of changes to it.\n\t *\n\t * Renderer tries not to break the text composition (e.g. IME) and x-index of the selection,\n\t * so it does as little as it is needed to update the DOM.\n\t *\n\t * Renderer also handles {@link module:engine/view/filler fillers}. Especially, it checks if the inline filler is needed\n\t * at the selection position and adds or removes it. To prevent breaking text composition inline filler will not be\n\t * removed as long as the selection is in the text node which needed it at first.\n\t */\n\tpublic render(): void {\n\t\t// Ignore rendering while in the composition mode. Composition events are not cancellable and browser will modify the DOM tree.\n\t\t// All marked elements, attributes, etc. will wait until next render after the composition ends.\n\t\t// On Android composition events are immediately applied to the model, so we don't need to skip rendering,\n\t\t// and we should not do it because the difference between view and DOM could lead to position mapping problems.\n\t\tif ( this.isComposing && !env.isAndroid ) {\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Rendering aborted while isComposing',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\treturn;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Rendering',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tlet inlineFillerPosition: ViewPosition | null = null;\n\t\tconst isInlineFillerRenderingPossible = env.isBlink && !env.isAndroid ? !this.isSelecting : true;\n\n\t\t// Refresh mappings.\n\t\tfor ( const element of this.markedChildren ) {\n\t\t\tthis._updateChildrenMappings( element );\n\t\t}\n\n\t\t// Don't manipulate inline fillers while the selection is being made in (non-Android) Blink to prevent accidental\n\t\t// DOM selection collapsing\n\t\t// (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t\tif ( isInlineFillerRenderingPossible ) {\n\t\t\t// There was inline filler rendered in the DOM but it's not\n\t\t\t// at the selection position any more, so we can remove it\n\t\t\t// (cause even if it's needed, it must be placed in another location).\n\t\t\tif ( this._inlineFiller && !this._isSelectionInInlineFiller() ) {\n\t\t\t\tthis._removeInlineFiller();\n\t\t\t}\n\n\t\t\t// If we've got the filler, let's try to guess its position in the view.\n\t\t\tif ( this._inlineFiller ) {\n\t\t\t\tinlineFillerPosition = this._getInlineFillerPosition();\n\t\t\t}\n\t\t\t// Otherwise, if it's needed, create it at the selection position.\n\t\t\telse if ( this._needsInlineFillerAtSelection() ) {\n\t\t\t\tinlineFillerPosition = this.selection.getFirstPosition()!;\n\n\t\t\t\t// Do not use `markToSync` so it will be added even if the parent is already added.\n\t\t\t\tthis.markedChildren.add( inlineFillerPosition.parent as ViewElement );\n\t\t\t}\n\t\t}\n\t\t// Make sure the inline filler has any parent, so it can be mapped to view position by DomConverter.\n\t\telse if ( this._inlineFiller && this._inlineFiller.parentNode ) {\n\t\t\t// While the user is making selection, preserve the inline filler at its original position.\n\t\t\tinlineFillerPosition = this.domConverter.domPositionToView( this._inlineFiller )!;\n\n\t\t\t// While down-casting the document selection attributes, all existing empty\n\t\t\t// attribute elements (for selection position) are removed from the view and DOM,\n\t\t\t// so make sure that we were able to map filler position.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/12026\n\t\t\tif ( inlineFillerPosition && inlineFillerPosition.parent.is( '$text' ) ) {\n\t\t\t\t// The inline filler position is expected to be before the text node.\n\t\t\t\tinlineFillerPosition = ViewPosition._createBefore( inlineFillerPosition.parent );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const element of this.markedAttributes ) {\n\t\t\tthis._updateAttrs( element );\n\t\t}\n\n\t\tfor ( const element of this.markedChildren ) {\n\t\t\tthis._updateChildren( element, { inlineFillerPosition } );\n\t\t}\n\n\t\tfor ( const node of this.markedTexts ) {\n\t\t\tif ( !this.markedChildren.has( node.parent as ViewElement ) && this.domConverter.mapViewToDom( node.parent as ViewElement ) ) {\n\t\t\t\tthis._updateText( node as ViewText, { inlineFillerPosition } );\n\t\t\t}\n\t\t}\n\n\t\t// * Check whether the inline filler is required and where it really is in the DOM.\n\t\t//   At this point in most cases it will be in the DOM, but there are exceptions.\n\t\t//   For example, if the inline filler was deep in the created DOM structure, it will not be created.\n\t\t//   Similarly, if it was removed at the beginning of this function and then neither text nor children were updated,\n\t\t//   it will not be present. Fix those and similar scenarios.\n\t\t// * Don't manipulate inline fillers while the selection is being made in (non-Android) Blink to prevent accidental\n\t\t//   DOM selection collapsing\n\t\t//   (https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723).\n\t\tif ( isInlineFillerRenderingPossible ) {\n\t\t\tif ( inlineFillerPosition ) {\n\t\t\t\tconst fillerDomPosition = this.domConverter.viewPositionToDom( inlineFillerPosition )!;\n\t\t\t\tconst domDocument = fillerDomPosition.parent.ownerDocument!;\n\n\t\t\t\tif ( !startsWithFiller( fillerDomPosition.parent ) ) {\n\t\t\t\t\t// Filler has not been created at filler position. Create it now.\n\t\t\t\t\tthis._inlineFiller = addInlineFiller( domDocument, fillerDomPosition.parent, fillerDomPosition.offset );\n\t\t\t\t} else {\n\t\t\t\t\t// Filler has been found, save it.\n\t\t\t\t\tthis._inlineFiller = fillerDomPosition.parent as DomText;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\t// There is no filler needed.\n\t\t\t\tthis._inlineFiller = null;\n\t\t\t}\n\t\t}\n\n\t\t// First focus the new editing host, then update the selection.\n\t\t// Otherwise, FF may throw an error (https://github.com/ckeditor/ckeditor5/issues/721).\n\t\tthis._updateFocus();\n\t\tthis._updateSelection();\n\n\t\tthis.markedTexts.clear();\n\t\tthis.markedAttributes.clear();\n\t\tthis.markedChildren.clear();\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n\n\t/**\n\t * Updates mappings of view element's children.\n\t *\n\t * Children that were replaced in the view structure by similar elements (same tag name) are treated as 'replaced'.\n\t * This means that their mappings can be updated so the new view elements are mapped to the existing DOM elements.\n\t * Thanks to that these elements do not need to be re-rendered completely.\n\t *\n\t * @param viewElement The view element whose children mappings will be updated.\n\t */\n\tprivate _updateChildrenMappings( viewElement: ViewElement ): void {\n\t\tconst domElement = this.domConverter.mapViewToDom( viewElement );\n\n\t\tif ( !domElement ) {\n\t\t\t// If there is no `domElement` it means that it was already removed from DOM and there is no need to process it.\n\t\t\treturn;\n\t\t}\n\n\t\t// Removing nodes from the DOM as we iterate can cause `actualDomChildren`\n\t\t// (which is a live-updating `NodeList`) to get out of sync with the\n\t\t// indices that we compute as we iterate over `actions`.\n\t\t// This would produce incorrect element mappings.\n\t\t//\n\t\t// Converting live list to an array to make the list static.\n\t\tconst actualDomChildren = Array.from(\n\t\t\tthis.domConverter.mapViewToDom( viewElement )!.childNodes\n\t\t);\n\t\tconst expectedDomChildren = Array.from(\n\t\t\tthis.domConverter.viewChildrenToDom( viewElement, { withChildren: false } )\n\t\t);\n\t\tconst diff = this._diffNodeLists( actualDomChildren, expectedDomChildren );\n\t\tconst actions = this._findUpdateActions( diff, actualDomChildren, expectedDomChildren, areSimilarElements );\n\n\t\tif ( actions.indexOf( 'update' ) !== -1 ) {\n\t\t\tconst counter = { equal: 0, insert: 0, delete: 0 };\n\n\t\t\tfor ( const action of actions ) {\n\t\t\t\tif ( action === 'update' ) {\n\t\t\t\t\tconst insertIndex = counter.equal + counter.insert;\n\t\t\t\t\tconst deleteIndex = counter.equal + counter.delete;\n\t\t\t\t\tconst viewChild = viewElement.getChild( insertIndex );\n\n\t\t\t\t\t// UIElement and RawElement are special cases. Their children are not stored in a view (#799)\n\t\t\t\t\t// so we cannot use them with replacing flow (since they use view children during rendering\n\t\t\t\t\t// which will always result in rendering empty elements).\n\t\t\t\t\tif ( viewChild && !( viewChild.is( 'uiElement' ) || viewChild.is( 'rawElement' ) ) ) {\n\t\t\t\t\t\tthis._updateElementMappings( viewChild as ViewElement, actualDomChildren[ deleteIndex ] as DomElement );\n\t\t\t\t\t}\n\n\t\t\t\t\tremove( expectedDomChildren[ insertIndex ] );\n\t\t\t\t\tcounter.equal++;\n\t\t\t\t} else {\n\t\t\t\t\tcounter[ action ]++;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Updates mappings of a given view element.\n\t *\n\t * @param viewElement The view element whose mappings will be updated.\n\t * @param domElement The DOM element representing the given view element.\n\t */\n\tprivate _updateElementMappings( viewElement: ViewElement, domElement: DomElement ): void {\n\t\t// Remap 'DomConverter' bindings.\n\t\tthis.domConverter.unbindDomElement( domElement );\n\t\tthis.domConverter.bindElements( domElement, viewElement );\n\n\t\t// View element may have children which needs to be updated, but are not marked, mark them to update.\n\t\tthis.markedChildren.add( viewElement );\n\n\t\t// Because we replace new view element mapping with the existing one, the corresponding DOM element\n\t\t// will not be rerendered. The new view element may have different attributes than the previous one.\n\t\t// Since its corresponding DOM element will not be rerendered, new attributes will not be added\n\t\t// to the DOM, so we need to mark it here to make sure its attributes gets updated. See #1427 for more\n\t\t// detailed case study.\n\t\t// Also there are cases where replaced element is removed from the view structure and then has\n\t\t// its attributes changed or removed. In such cases the element will not be present in `markedAttributes`\n\t\t// and also may be the same (`element.isSimilar()`) as the reused element not having its attributes updated.\n\t\t// To prevent such situations we always mark reused element to have its attributes rerenderd (#1560).\n\t\tthis.markedAttributes.add( viewElement );\n\t}\n\n\t/**\n\t * Gets the position of the inline filler based on the current selection.\n\t * Here, we assume that we know that the filler is needed and\n\t * {@link #_isSelectionInInlineFiller is at the selection position}, and, since it is needed,\n\t * it is somewhere at the selection position.\n\t *\n\t * Note: The filler position cannot be restored based on the filler's DOM text node, because\n\t * when this method is called (before rendering), the bindings will often be broken. View-to-DOM\n\t * bindings are only dependable after rendering.\n\t */\n\tprivate _getInlineFillerPosition(): ViewPosition {\n\t\tconst firstPos = this.selection.getFirstPosition()!;\n\n\t\tif ( firstPos.parent.is( '$text' ) ) {\n\t\t\treturn ViewPosition._createBefore( firstPos.parent );\n\t\t} else {\n\t\t\treturn firstPos;\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` if the selection has not left the inline filler's text node.\n\t * If it is `true`, it means that the filler had been added for a reason and the selection did not\n\t * leave the filler's text node. For example, the user can be in the middle of a composition so it should not be touched.\n\t *\n\t * @returns `true` if the inline filler and selection are in the same place.\n\t */\n\tprivate _isSelectionInInlineFiller(): boolean {\n\t\tif ( this.selection.rangeCount != 1 || !this.selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Note, we can't check if selection's position equals position of the\n\t\t// this._inlineFiller node, because of #663. We may not be able to calculate\n\t\t// the filler's position in the view at this stage.\n\t\t// Instead, we check it the other way – whether selection is anchored in\n\t\t// that text node or next to it.\n\n\t\t// Possible options are:\n\t\t// \"FILLER{}\"\n\t\t// \"FILLERadded-text{}\"\n\t\tconst selectionPosition = this.selection.getFirstPosition()!;\n\t\tconst position = this.domConverter.viewPositionToDom( selectionPosition );\n\n\t\tif ( position && isText( position.parent ) && startsWithFiller( position.parent ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Removes the inline filler.\n\t */\n\tprivate _removeInlineFiller(): void {\n\t\tconst domFillerNode = this._inlineFiller!;\n\n\t\t// Something weird happened and the stored node doesn't contain the filler's text.\n\t\tif ( !startsWithFiller( domFillerNode ) ) {\n\t\t\t/**\n\t\t\t * The inline filler node was lost. Most likely, something overwrote the filler text node\n\t\t\t * in the DOM.\n\t\t\t *\n\t\t\t * @error view-renderer-filler-was-lost\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-renderer-filler-was-lost', this );\n\t\t}\n\n\t\tif ( isInlineFiller( domFillerNode ) ) {\n\t\t\tdomFillerNode.remove();\n\t\t} else {\n\t\t\tdomFillerNode.data = domFillerNode.data.substr( INLINE_FILLER_LENGTH );\n\t\t}\n\n\t\tthis._inlineFiller = null;\n\t}\n\n\t/**\n\t * Checks if the inline {@link module:engine/view/filler filler} should be added.\n\t *\n\t * @returns `true` if the inline filler should be added.\n\t */\n\tprivate _needsInlineFillerAtSelection(): boolean {\n\t\tif ( this.selection.rangeCount != 1 || !this.selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst selectionPosition = this.selection.getFirstPosition()!;\n\t\tconst selectionParent = selectionPosition.parent;\n\t\tconst selectionOffset = selectionPosition.offset;\n\n\t\t// If there is no DOM root we do not care about fillers.\n\t\tif ( !this.domConverter.mapViewToDom( selectionParent.root ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !( selectionParent.is( 'element' ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Prevent adding inline filler inside elements with contenteditable=false.\n\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/1170\n\t\tif ( !isEditable( selectionParent ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// We have block filler, we do not need inline one.\n\t\tif ( selectionOffset === selectionParent.getFillerOffset!() ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst nodeBefore = selectionPosition.nodeBefore;\n\t\tconst nodeAfter = selectionPosition.nodeAfter;\n\n\t\tif ( nodeBefore instanceof ViewText || nodeAfter instanceof ViewText ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Do not use inline filler while typing outside inline elements on Android.\n\t\t// The deleteContentBackward would remove part of the inline filler instead of removing last letter in a link.\n\t\tif ( env.isAndroid && ( nodeBefore || nodeAfter ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks if text needs to be updated and possibly updates it.\n\t *\n\t * @param viewText View text to update.\n\t * @param options.inlineFillerPosition The position where the inline filler should be rendered.\n\t */\n\tprivate _updateText( viewText: ViewText, options: { inlineFillerPosition?: ViewPosition | null } ) {\n\t\tconst domText = this.domConverter.findCorrespondingDomText( viewText )!;\n\t\tconst newDomText = this.domConverter.viewToDom( viewText ) as DomText;\n\n\t\tlet expectedText = newDomText.data;\n\t\tconst filler = options.inlineFillerPosition;\n\n\t\tif ( filler && filler.parent == viewText.parent && filler.offset == viewText.index ) {\n\t\t\texpectedText = INLINE_FILLER + expectedText;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Update text',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tupdateTextNode( domText, expectedText );\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n\n\t/**\n\t * Checks if attribute list needs to be updated and possibly updates it.\n\t *\n\t * @param viewElement The view element to update.\n\t */\n\tprivate _updateAttrs( viewElement: ViewElement ): void {\n\t\tconst domElement = this.domConverter.mapViewToDom( viewElement );\n\n\t\tif ( !domElement ) {\n\t\t\t// If there is no `domElement` it means that 'viewElement' is outdated as its mapping was updated\n\t\t\t// in 'this._updateChildrenMappings()'. There is no need to process it as new view element which\n\t\t\t// replaced old 'viewElement' mapping was also added to 'this.markedAttributes'\n\t\t\t// in 'this._updateChildrenMappings()' so it will be processed separately.\n\t\t\treturn;\n\t\t}\n\n\t\tconst domAttrKeys = Array.from( ( domElement as DomElement ).attributes ).map( attr => attr.name );\n\t\tconst viewAttrKeys = viewElement.getAttributeKeys();\n\n\t\t// Add or overwrite attributes.\n\t\tfor ( const key of viewAttrKeys ) {\n\t\t\tthis.domConverter.setDomElementAttribute( domElement as DomElement, key, viewElement.getAttribute( key )!, viewElement );\n\t\t}\n\n\t\t// Remove from DOM attributes which do not exists in the view.\n\t\tfor ( const key of domAttrKeys ) {\n\t\t\t// All other attributes not present in the DOM should be removed.\n\t\t\tif ( !viewElement.hasAttribute( key ) ) {\n\t\t\t\tthis.domConverter.removeDomElementAttribute( domElement as DomElement, key );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks if elements child list needs to be updated and possibly updates it.\n\t *\n\t * Note that on Android, to reduce the risk of composition breaks, it tries to update data of an existing\n\t * child text nodes instead of replacing them completely.\n\t *\n\t * @param viewElement View element to update.\n\t * @param options.inlineFillerPosition The position where the inline filler should be rendered.\n\t */\n\tprivate _updateChildren( viewElement: ViewElement, options: { inlineFillerPosition: ViewPosition | null } ) {\n\t\tconst domElement = this.domConverter.mapViewToDom( viewElement );\n\n\t\tif ( !domElement ) {\n\t\t\t// If there is no `domElement` it means that it was already removed from DOM.\n\t\t\t// There is no need to process it. It will be processed when re-inserted.\n\t\t\treturn;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Update children',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t// IME on Android inserts a new text node while typing after a link\n\t\t// instead of updating an existing text node that follows the link.\n\t\t// We must normalize those text nodes so the diff won't get confused.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/12574.\n\t\tif ( env.isAndroid ) {\n\t\t\tlet previousDomNode = null;\n\n\t\t\tfor ( const domNode of Array.from( domElement.childNodes ) ) {\n\t\t\t\tif ( previousDomNode && isText( previousDomNode ) && isText( domNode ) ) {\n\t\t\t\t\tdomElement.normalize();\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tpreviousDomNode = domNode;\n\t\t\t}\n\t\t}\n\n\t\tconst inlineFillerPosition = options.inlineFillerPosition;\n\t\tconst actualDomChildren = domElement.childNodes;\n\t\tconst expectedDomChildren = Array.from(\n\t\t\tthis.domConverter.viewChildrenToDom( viewElement, { bind: true } )\n\t\t);\n\n\t\t// Inline filler element has to be created as it is present in the DOM, but not in the view. It is required\n\t\t// during diffing so text nodes could be compared correctly and also during rendering to maintain\n\t\t// proper order and indexes while updating the DOM.\n\t\tif ( inlineFillerPosition && inlineFillerPosition.parent === viewElement ) {\n\t\t\taddInlineFiller( ( domElement as DomElement ).ownerDocument, expectedDomChildren, inlineFillerPosition.offset );\n\t\t}\n\n\t\tconst diff = this._diffNodeLists( actualDomChildren, expectedDomChildren );\n\n\t\t// We need to make sure that we update the existing text node and not replace it with another one.\n\t\t// The composition and different \"language\" browser extensions are fragile to text node being completely replaced.\n\t\tconst actions = this._findUpdateActions( diff, actualDomChildren, expectedDomChildren, areTextNodes );\n\n\t\tlet i = 0;\n\t\tconst nodesToUnbind: Set<DomNode> = new Set();\n\n\t\t// Handle deletions first.\n\t\t// This is to prevent a situation where an element that already exists in `actualDomChildren` is inserted at a different\n\t\t// index in `actualDomChildren`. Since `actualDomChildren` is a `NodeList`, this works like move, not like an insert,\n\t\t// and it disrupts the whole algorithm. See https://github.com/ckeditor/ckeditor5/issues/6367.\n\t\t//\n\t\t// It doesn't matter in what order we remove or add nodes, as long as we remove and add correct nodes at correct indexes.\n\t\tfor ( const action of actions ) {\n\t\t\tif ( action === 'delete' ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Remove node',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '', actualDomChildren[ i ]\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\t\tnodesToUnbind.add( actualDomChildren[ i ] as DomElement );\n\t\t\t\tremove( actualDomChildren[ i ] );\n\t\t\t} else if ( action === 'equal' || action === 'update' ) {\n\t\t\t\ti++;\n\t\t\t}\n\t\t}\n\n\t\ti = 0;\n\n\t\tfor ( const action of actions ) {\n\t\t\tif ( action === 'insert' ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Insert node',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '', expectedDomChildren[ i ]\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tinsertAt( domElement as DomElement, i, expectedDomChildren[ i ] );\n\t\t\t\ti++;\n\t\t\t}\n\t\t\t// Update the existing text node data. Note that replace action is generated only for Android for now.\n\t\t\telse if ( action === 'update' ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[Renderer]%c Update text node',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', ''\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tupdateTextNode( actualDomChildren[ i ] as DomText, ( expectedDomChildren[ i ] as DomText ).data );\n\t\t\t\ti++;\n\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\t} else if ( action === 'equal' ) {\n\t\t\t\t// Force updating text nodes inside elements which did not change and do not need to be re-rendered (#1125).\n\t\t\t\t// Do it here (not in the loop above) because only after insertions the `i` index is correct.\n\t\t\t\tthis._markDescendantTextToSync( this.domConverter.domToView( expectedDomChildren[ i ] ) as any );\n\t\t\t\ti++;\n\t\t\t}\n\t\t}\n\n\t\t// Unbind removed nodes. When node does not have a parent it means that it was removed from DOM tree during\n\t\t// comparison with the expected DOM. We don't need to check child nodes, because if child node was reinserted,\n\t\t// it was moved to DOM tree out of the removed node.\n\t\tfor ( const node of nodesToUnbind ) {\n\t\t\tif ( !node.parentNode ) {\n\t\t\t\tthis.domConverter.unbindDomElement( node as DomElement );\n\t\t\t}\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n\n\t/**\n\t * Shorthand for diffing two arrays or node lists of DOM nodes.\n\t *\n\t * @param actualDomChildren Actual DOM children\n\t * @param expectedDomChildren Expected DOM children.\n\t * @returns The list of actions based on the {@link module:utils/diff~diff} function.\n\t */\n\tprivate _diffNodeLists( actualDomChildren: Array<DomNode> | NodeList, expectedDomChildren: Array<DomNode> | NodeList ) {\n\t\tactualDomChildren = filterOutFakeSelectionContainer( actualDomChildren, this._fakeSelectionContainer );\n\n\t\treturn diff( actualDomChildren, expectedDomChildren, sameNodes.bind( null, this.domConverter ) );\n\t}\n\n\t/**\n\t * Finds DOM nodes that were replaced with the similar nodes (same tag name) in the view. All nodes are compared\n\t * within one `insert`/`delete` action group, for example:\n\t *\n\t * ```\n\t * Actual DOM:\t\t<p><b>Foo</b>Bar<i>Baz</i><b>Bax</b></p>\n\t * Expected DOM:\t<p>Bar<b>123</b><i>Baz</i><b>456</b></p>\n\t * Input actions:\t[ insert, insert, delete, delete, equal, insert, delete ]\n\t * Output actions:\t[ insert, replace, delete, equal, replace ]\n\t * ```\n\t *\n\t * @param actions Actions array which is a result of the {@link module:utils/diff~diff} function.\n\t * @param actualDom Actual DOM children\n\t * @param expectedDom Expected DOM children.\n\t * @param comparator A comparator function that should return `true` if the given node should be reused\n\t * (either by the update of a text node data or an element children list for similar elements).\n\t * @returns Actions array modified with the `update` actions.\n\t */\n\tprivate _findUpdateActions(\n\t\tactions: Array<DiffResult>,\n\t\tactualDom: Array<DomNode> | NodeList,\n\t\texpectedDom: Array<DomNode>,\n\t\tcomparator: ( a: DomNode, b: DomNode ) => boolean\n\t): Array<DiffResult | 'update'> {\n\t\t// If there is no both 'insert' and 'delete' actions, no need to check for replaced elements.\n\t\tif ( actions.indexOf( 'insert' ) === -1 || actions.indexOf( 'delete' ) === -1 ) {\n\t\t\treturn actions;\n\t\t}\n\n\t\tlet newActions: Array<DiffResult | 'update'> = [];\n\t\tlet actualSlice = [];\n\t\tlet expectedSlice = [];\n\n\t\tconst counter = { equal: 0, insert: 0, delete: 0 };\n\n\t\tfor ( const action of actions ) {\n\t\t\tif ( action === 'insert' ) {\n\t\t\t\texpectedSlice.push( expectedDom[ counter.equal + counter.insert ] );\n\t\t\t} else if ( action === 'delete' ) {\n\t\t\t\tactualSlice.push( actualDom[ counter.equal + counter.delete ] );\n\t\t\t} else { // equal\n\t\t\t\tnewActions = newActions.concat(\n\t\t\t\t\tdiff( actualSlice, expectedSlice, comparator )\n\t\t\t\t\t\t.map( action => action === 'equal' ? 'update' : action )\n\t\t\t\t);\n\n\t\t\t\tnewActions.push( 'equal' );\n\n\t\t\t\t// Reset stored elements on 'equal'.\n\t\t\t\tactualSlice = [];\n\t\t\t\texpectedSlice = [];\n\t\t\t}\n\t\t\tcounter[ action ]++;\n\t\t}\n\n\t\treturn newActions.concat(\n\t\t\tdiff( actualSlice, expectedSlice, comparator )\n\t\t\t\t.map( action => action === 'equal' ? 'update' : action )\n\t\t);\n\t}\n\n\t/**\n\t * Marks text nodes to be synchronized.\n\t *\n\t * If a text node is passed, it will be marked. If an element is passed, all descendant text nodes inside it will be marked.\n\t *\n\t * @param viewNode View node to sync.\n\t */\n\tprivate _markDescendantTextToSync( viewNode: ViewNode | undefined ): void {\n\t\tif ( !viewNode ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( viewNode.is( '$text' ) ) {\n\t\t\tthis.markedTexts.add( viewNode );\n\t\t} else if ( viewNode.is( 'element' ) ) {\n\t\t\tfor ( const child of viewNode.getChildren() ) {\n\t\t\t\tthis._markDescendantTextToSync( child );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks if the selection needs to be updated and possibly updates it.\n\t */\n\tprivate _updateSelection(): void {\n\t\t// Block updating DOM selection in (non-Android) Blink while the user is selecting to prevent accidental selection collapsing.\n\t\t// Note: Structural changes in DOM must trigger selection rendering, though. Nodes the selection was anchored\n\t\t// to, may disappear in DOM which would break the selection (e.g. in real-time collaboration scenarios).\n\t\t// https://github.com/ckeditor/ckeditor5/issues/10562, https://github.com/ckeditor/ckeditor5/issues/10723\n\t\tif ( env.isBlink && !env.isAndroid && this.isSelecting && !this.markedChildren.size ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If there is no selection - remove DOM and fake selections.\n\t\tif ( this.selection.rangeCount === 0 ) {\n\t\t\tthis._removeDomSelection();\n\t\t\tthis._removeFakeSelection();\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst domRoot = this.domConverter.mapViewToDom( this.selection.editableElement! );\n\n\t\t// Do nothing if there is no focus, or there is no DOM element corresponding to selection's editable element.\n\t\tif ( !this.isFocused || !domRoot ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Render fake selection - create the fake selection container (if needed) and move DOM selection to it.\n\t\tif ( this.selection.isFake ) {\n\t\t\tthis._updateFakeSelection( domRoot );\n\t\t}\n\t\t// There was a fake selection so remove it and update the DOM selection.\n\t\t// This is especially important on Android because otherwise IME will try to compose over the fake selection container.\n\t\telse if ( this._fakeSelectionContainer && this._fakeSelectionContainer.isConnected ) {\n\t\t\tthis._removeFakeSelection();\n\t\t\tthis._updateDomSelection( domRoot );\n\t\t}\n\t\t// Update the DOM selection in case of a plain selection change (no fake selection is involved).\n\t\t// On non-Android the whole rendering is disabled in composition mode (including DOM selection update),\n\t\t// but updating DOM selection should be also disabled on Android if in the middle of the composition\n\t\t// (to not interrupt it).\n\t\telse if ( !( this.isComposing && env.isAndroid ) ) {\n\t\t\tthis._updateDomSelection( domRoot );\n\t\t}\n\t}\n\n\t/**\n\t * Updates the fake selection.\n\t *\n\t * @param domRoot A valid DOM root where the fake selection container should be added.\n\t */\n\tprivate _updateFakeSelection( domRoot: DomElement ): void {\n\t\tconst domDocument = domRoot.ownerDocument;\n\n\t\tif ( !this._fakeSelectionContainer ) {\n\t\t\tthis._fakeSelectionContainer = createFakeSelectionContainer( domDocument );\n\t\t}\n\n\t\tconst container = this._fakeSelectionContainer;\n\n\t\t// Bind fake selection container with the current selection *position*.\n\t\tthis.domConverter.bindFakeSelection( container, this.selection );\n\n\t\tif ( !this._fakeSelectionNeedsUpdate( domRoot ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !container.parentElement || container.parentElement != domRoot ) {\n\t\t\tdomRoot.appendChild( container );\n\t\t}\n\n\t\tcontainer.textContent = this.selection.fakeSelectionLabel || '\\u00A0';\n\n\t\tconst domSelection = domDocument.getSelection()!;\n\t\tconst domRange = domDocument.createRange();\n\n\t\tdomSelection.removeAllRanges();\n\t\tdomRange.selectNodeContents( container );\n\t\tdomSelection.addRange( domRange );\n\t}\n\n\t/**\n\t * Updates the DOM selection.\n\t *\n\t * @param domRoot A valid DOM root where the DOM selection should be rendered.\n\t */\n\tprivate _updateDomSelection( domRoot: DomElement ) {\n\t\tconst domSelection = domRoot.ownerDocument.defaultView!.getSelection()!;\n\n\t\t// Let's check whether DOM selection needs updating at all.\n\t\tif ( !this._domSelectionNeedsUpdate( domSelection ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Multi-range selection is not available in most browsers, and, at least in Chrome, trying to\n\t\t// set such selection, that is not continuous, throws an error. Because of that, we will just use anchor\n\t\t// and focus of view selection.\n\t\t// Since we are not supporting multi-range selection, we also do not need to check if proper editable is\n\t\t// selected. If there is any editable selected, it is okay (editable is taken from selection anchor).\n\t\tconst anchor = this.domConverter.viewPositionToDom( this.selection.anchor! )!;\n\t\tconst focus = this.domConverter.viewPositionToDom( this.selection.focus! )!;\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Update DOM selection:',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '', anchor, focus\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tdomSelection.collapse( anchor.parent, anchor.offset );\n\t\tdomSelection.extend( focus.parent, focus.offset );\n\n\t\t// Firefox–specific hack (https://github.com/ckeditor/ckeditor5-engine/issues/1439).\n\t\tif ( env.isGecko ) {\n\t\t\tfixGeckoSelectionAfterBr( focus, domSelection );\n\t\t}\n\t}\n\n\t/**\n\t * Checks whether a given DOM selection needs to be updated.\n\t *\n\t * @param domSelection The DOM selection to check.\n\t */\n\tprivate _domSelectionNeedsUpdate( domSelection: Selection ): boolean {\n\t\tif ( !this.domConverter.isDomSelectionCorrect( domSelection ) ) {\n\t\t\t// Current DOM selection is in incorrect position. We need to update it.\n\t\t\treturn true;\n\t\t}\n\n\t\tconst oldViewSelection = domSelection && this.domConverter.domSelectionToView( domSelection );\n\n\t\tif ( oldViewSelection && this.selection.isEqual( oldViewSelection ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// If selection is not collapsed, it does not need to be updated if it is similar.\n\t\tif ( !this.selection.isCollapsed && this.selection.isSimilar( oldViewSelection ) ) {\n\t\t\t// Selection did not changed and is correct, do not update.\n\t\t\treturn false;\n\t\t}\n\n\t\t// Selections are not similar.\n\t\treturn true;\n\t}\n\n\t/**\n\t * Checks whether the fake selection needs to be updated.\n\t *\n\t * @param domRoot A valid DOM root where a new fake selection container should be added.\n\t */\n\tprivate _fakeSelectionNeedsUpdate( domRoot: DomElement ): boolean {\n\t\tconst container = this._fakeSelectionContainer;\n\t\tconst domSelection = domRoot.ownerDocument.getSelection()!;\n\n\t\t// Fake selection needs to be updated if there's no fake selection container, or the container currently sits\n\t\t// in a different root.\n\t\tif ( !container || container.parentElement !== domRoot ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Make sure that the selection actually is within the fake selection.\n\t\tif ( domSelection.anchorNode !== container && !container.contains( domSelection.anchorNode ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\treturn container.textContent !== this.selection.fakeSelectionLabel;\n\t}\n\n\t/**\n\t * Removes the DOM selection.\n\t */\n\tprivate _removeDomSelection(): void {\n\t\tfor ( const doc of this.domDocuments ) {\n\t\t\tconst domSelection = doc.getSelection()!;\n\n\t\t\tif ( domSelection.rangeCount ) {\n\t\t\t\tconst activeDomElement = doc.activeElement!;\n\t\t\t\tconst viewElement = this.domConverter.mapDomToView( activeDomElement as DomElement );\n\n\t\t\t\tif ( activeDomElement && viewElement ) {\n\t\t\t\t\tdomSelection.removeAllRanges();\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Removes the fake selection.\n\t */\n\tprivate _removeFakeSelection(): void {\n\t\tconst container = this._fakeSelectionContainer;\n\n\t\tif ( container ) {\n\t\t\tcontainer.remove();\n\t\t}\n\t}\n\n\t/**\n\t * Checks if focus needs to be updated and possibly updates it.\n\t */\n\tprivate _updateFocus(): void {\n\t\tif ( this.isFocused ) {\n\t\t\tconst editable = this.selection.editableElement;\n\n\t\t\tif ( editable ) {\n\t\t\t\tthis.domConverter.focus( editable );\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Checks if provided element is editable.\n */\nfunction isEditable( element: ViewElement ): boolean {\n\tif ( element.getAttribute( 'contenteditable' ) == 'false' ) {\n\t\treturn false;\n\t}\n\n\tconst parent = element.findAncestor( element => element.hasAttribute( 'contenteditable' ) );\n\n\treturn !parent || parent.getAttribute( 'contenteditable' ) == 'true';\n}\n\n/**\n * Adds inline filler at a given position.\n *\n * The position can be given as an array of DOM nodes and an offset in that array,\n * or a DOM parent element and an offset in that element.\n *\n * @returns The DOM text node that contains an inline filler.\n */\nfunction addInlineFiller( domDocument: DomDocument, domParentOrArray: DomNode | Array<DomNode>, offset: number ): DomText {\n\tconst childNodes = domParentOrArray instanceof Array ? domParentOrArray : domParentOrArray.childNodes;\n\tconst nodeAfterFiller = childNodes[ offset ];\n\n\tif ( isText( nodeAfterFiller ) ) {\n\t\tnodeAfterFiller.data = INLINE_FILLER + nodeAfterFiller.data;\n\n\t\treturn nodeAfterFiller;\n\t} else {\n\t\tconst fillerNode = domDocument.createTextNode( INLINE_FILLER );\n\n\t\tif ( Array.isArray( domParentOrArray ) ) {\n\t\t\t( childNodes as Array<DomNode> ).splice( offset, 0, fillerNode );\n\t\t} else {\n\t\t\tinsertAt( domParentOrArray as DomElement, offset, fillerNode );\n\t\t}\n\n\t\treturn fillerNode;\n\t}\n}\n\n/**\n * Whether two DOM nodes should be considered as similar.\n * Nodes are considered similar if they have the same tag name.\n */\nfunction areSimilarElements( node1: DomNode, node2: DomNode ): boolean {\n\treturn isNode( node1 ) && isNode( node2 ) &&\n\t\t!isText( node1 ) && !isText( node2 ) &&\n\t\t!isComment( node1 ) && !isComment( node2 ) &&\n\t\t( node1 as DomElement ).tagName.toLowerCase() === ( node2 as DomElement ).tagName.toLowerCase();\n}\n\n/**\n * Whether two DOM nodes are text nodes.\n */\nfunction areTextNodes( node1: DomNode, node2: DomNode ): boolean {\n\treturn isNode( node1 ) && isNode( node2 ) &&\n\t\tisText( node1 ) && isText( node2 );\n}\n\n/**\n * Whether two dom nodes should be considered as the same.\n * Two nodes which are considered the same are:\n *\n * * Text nodes with the same text.\n * * Element nodes represented by the same object.\n * * Two block filler elements.\n *\n * @param blockFillerMode Block filler mode, see {@link module:engine/view/domconverter~DomConverter#blockFillerMode}.\n */\nfunction sameNodes( domConverter: DomConverter, actualDomChild: DomNode, expectedDomChild: DomNode ): boolean {\n\t// Elements.\n\tif ( actualDomChild === expectedDomChild ) {\n\t\treturn true;\n\t}\n\t// Texts.\n\telse if ( isText( actualDomChild ) && isText( expectedDomChild ) ) {\n\t\treturn actualDomChild.data === expectedDomChild.data;\n\t}\n\t// Block fillers.\n\telse if ( domConverter.isBlockFiller( actualDomChild ) &&\n\t\tdomConverter.isBlockFiller( expectedDomChild ) ) {\n\t\treturn true;\n\t}\n\n\t// Not matching types.\n\treturn false;\n}\n\n/**\n * The following is a Firefox–specific hack (https://github.com/ckeditor/ckeditor5-engine/issues/1439).\n * When the native DOM selection is at the end of the block and preceded by <br /> e.g.\n *\n * ```html\n * <p>foo<br/>[]</p>\n * ```\n *\n * which happens a lot when using the soft line break, the browser fails to (visually) move the\n * caret to the new line. A quick fix is as simple as force–refreshing the selection with the same range.\n */\nfunction fixGeckoSelectionAfterBr( focus: ReturnType<DomConverter[ 'viewPositionToDom' ]>, domSelection: DomSelection ) {\n\tconst parent = focus!.parent;\n\n\t// This fix works only when the focus point is at the very end of an element.\n\t// There is no point in running it in cases unrelated to the browser bug.\n\tif ( parent.nodeType != Node.ELEMENT_NODE || focus!.offset != parent.childNodes.length - 1 ) {\n\t\treturn;\n\t}\n\n\tconst childAtOffset = parent.childNodes[ focus!.offset ];\n\n\t// To stay on the safe side, the fix being as specific as possible, it targets only the\n\t// selection which is at the very end of the element and preceded by <br />.\n\tif ( childAtOffset && ( childAtOffset as DomElement ).tagName == 'BR' ) {\n\t\tdomSelection.addRange( domSelection.getRangeAt( 0 ) );\n\t}\n}\n\nfunction filterOutFakeSelectionContainer( domChildList: Array<DomNode> | NodeList, fakeSelectionContainer: DomElement | null ) {\n\tconst childList = Array.from( domChildList );\n\n\tif ( childList.length == 0 || !fakeSelectionContainer ) {\n\t\treturn childList;\n\t}\n\n\tconst last = childList[ childList.length - 1 ];\n\n\tif ( last == fakeSelectionContainer ) {\n\t\tchildList.pop();\n\t}\n\n\treturn childList;\n}\n\n/**\n * Creates a fake selection container for a given document.\n */\nfunction createFakeSelectionContainer( domDocument: DomDocument ): DomElement {\n\tconst container = domDocument.createElement( 'div' );\n\n\tcontainer.className = 'ck-fake-selection-container';\n\n\tObject.assign( container.style, {\n\t\tposition: 'fixed',\n\t\ttop: 0,\n\t\tleft: '-9999px',\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/752.\n\t\twidth: '42px'\n\t} );\n\n\t// Fill it with a text node so we can update it later.\n\tcontainer.textContent = '\\u00A0';\n\n\treturn container;\n}\n\n/**\n * Checks if text needs to be updated and possibly updates it by removing and inserting only parts\n * of the data from the existing text node to reduce impact on the IME composition.\n *\n * @param domText DOM text node to update.\n * @param expectedText The expected data of a text node.\n */\nfunction updateTextNode( domText: DomText, expectedText: string ) {\n\tconst actualText = domText.data;\n\n\tif ( actualText == expectedText ) {\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Text node does not need update:',\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '',\n\t\t// @if CK_DEBUG_TYPING // \t\t`\"${ domText.data }\" (${ domText.data.length })`\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\treturn;\n\t}\n\n\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[Renderer]%c Update text node:',\n\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', '',\n\t// @if CK_DEBUG_TYPING // \t\t`\"${ domText.data }\" (${ domText.data.length }) -> \"${ expectedText }\" (${ expectedText.length })`\n\t// @if CK_DEBUG_TYPING // \t);\n\t// @if CK_DEBUG_TYPING // }\n\n\tconst actions = fastDiff( actualText, expectedText );\n\n\tfor ( const action of actions ) {\n\t\tif ( action.type === 'insert' ) {\n\t\t\tdomText.insertData( action.index, action.values.join( '' ) );\n\t\t} else { // 'delete'\n\t\t\tdomText.deleteData( action.index, action.howMany );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/domconverter\n */\n\n/* globals Node, NodeFilter, DOMParser, Text */\n\nimport ViewText from './text';\nimport ViewElement from './element';\nimport ViewUIElement from './uielement';\nimport ViewPosition from './position';\nimport ViewRange from './range';\nimport ViewSelection from './selection';\nimport ViewDocumentFragment from './documentfragment';\nimport ViewTreeWalker from './treewalker';\nimport { default as Matcher, type MatcherPattern } from './matcher';\nimport {\n\tBR_FILLER, INLINE_FILLER_LENGTH, NBSP_FILLER, MARKED_NBSP_FILLER,\n\tgetDataWithoutFiller, isInlineFiller, startsWithFiller\n} from './filler';\n\nimport {\n\tglobal,\n\tlogWarning,\n\tindexOf,\n\tgetAncestors,\n\tisText,\n\tisComment,\n\tfirst\n} from '@ckeditor/ckeditor5-utils';\n\nimport type ViewNode from './node';\nimport type Document from './document';\nimport type DocumentSelection from './documentselection';\nimport type EditableElement from './editableelement';\nimport type ViewTextProxy from './textproxy';\nimport type ViewRawElement from './rawelement';\n\ntype DomNode = globalThis.Node;\ntype DomElement = globalThis.HTMLElement;\ntype DomDocument = globalThis.Document;\ntype DomDocumentFragment = globalThis.DocumentFragment;\ntype DomComment = globalThis.Comment;\ntype DomRange = globalThis.Range;\ntype DomText = globalThis.Text;\ntype DomSelection = globalThis.Selection;\n\nconst BR_FILLER_REF = BR_FILLER( global.document ); // eslint-disable-line new-cap\nconst NBSP_FILLER_REF = NBSP_FILLER( global.document ); // eslint-disable-line new-cap\nconst MARKED_NBSP_FILLER_REF = MARKED_NBSP_FILLER( global.document ); // eslint-disable-line new-cap\nconst UNSAFE_ATTRIBUTE_NAME_PREFIX = 'data-ck-unsafe-attribute-';\nconst UNSAFE_ELEMENT_REPLACEMENT_ATTRIBUTE = 'data-ck-unsafe-element';\n\n/**\n * `DomConverter` is a set of tools to do transformations between DOM nodes and view nodes. It also handles\n * {@link module:engine/view/domconverter~DomConverter#bindElements bindings} between these nodes.\n *\n * An instance of the DOM converter is available under\n * {@link module:engine/view/view~View#domConverter `editor.editing.view.domConverter`}.\n *\n * The DOM converter does not check which nodes should be rendered (use {@link module:engine/view/renderer~Renderer}), does not keep the\n * state of a tree nor keeps the synchronization between the tree view and the DOM tree (use {@link module:engine/view/document~Document}).\n *\n * The DOM converter keeps DOM elements to view element bindings, so when the converter gets destroyed, the bindings are lost.\n * Two converters will keep separate binding maps, so one tree view can be bound with two DOM trees.\n */\nexport default class DomConverter {\n\tpublic readonly document: Document;\n\n\t/**\n\t * Whether to leave the View-to-DOM conversion result unchanged or improve editing experience by filtering out interactive data.\n\t */\n\tpublic readonly renderingMode: 'data' | 'editing';\n\n\t/**\n\t * The mode of a block filler used by the DOM converter.\n\t */\n\tpublic blockFillerMode: BlockFillerMode;\n\n\t/**\n\t * Elements which are considered pre-formatted elements.\n\t */\n\tpublic readonly preElements: Array<string>;\n\n\t/**\n\t * Elements which are considered block elements (and hence should be filled with a\n\t * {@link #isBlockFiller block filler}).\n\t *\n\t * Whether an element is considered a block element also affects handling of trailing whitespaces.\n\t *\n\t * You can extend this array if you introduce support for block elements which are not yet recognized here.\n\t */\n\tpublic readonly blockElements: Array<string>;\n\n\t/**\n\t * A list of elements that exist inline (in text) but their inner structure cannot be edited because\n\t * of the way they are rendered by the browser. They are mostly HTML form elements but there are other\n\t * elements such as `<img>` or `<iframe>` that also have non-editable children or no children whatsoever.\n\t *\n\t * Whether an element is considered an inline object has an impact on white space rendering (trimming)\n\t * around (and inside of it). In short, white spaces in text nodes next to inline objects are not trimmed.\n\t *\n\t * You can extend this array if you introduce support for inline object elements which are not yet recognized here.\n\t */\n\tpublic readonly inlineObjectElements: Array<string>;\n\n\t/**\n\t * A list of elements which may affect the editing experience. To avoid this, those elements are replaced with\n\t * `<span data-ck-unsafe-element=\"[element name]\"></span>` while rendering in the editing mode.\n\t */\n\tpublic readonly unsafeElements: Array<string>;\n\n\t/**\n\t * The DOM Document used to create DOM nodes.\n\t */\n\tprivate readonly _domDocument: DomDocument;\n\n\t/**\n\t * The DOM-to-view mapping.\n\t */\n\tprivate readonly _domToViewMapping = new WeakMap<DomElement | DomDocumentFragment, ViewElement | ViewDocumentFragment>();\n\n\t/**\n\t * The view-to-DOM mapping.\n\t */\n\tprivate readonly _viewToDomMapping = new WeakMap<ViewElement | ViewDocumentFragment, DomElement | DomDocumentFragment>();\n\n\t/**\n\t * Holds the mapping between fake selection containers and corresponding view selections.\n\t */\n\tprivate readonly _fakeSelectionMapping = new WeakMap<DomElement, ViewSelection>();\n\n\t/**\n\t * Matcher for view elements whose content should be treated as raw data\n\t * and not processed during the conversion from DOM nodes to view elements.\n\t */\n\tprivate readonly _rawContentElementMatcher = new Matcher();\n\n\t/**\n\t * A set of encountered raw content DOM nodes. It is used for preventing left trimming of the following text node.\n\t */\n\tprivate readonly _encounteredRawContentDomNodes = new WeakSet<DomNode>();\n\n\t/**\n\t * Creates a DOM converter.\n\t *\n\t * @param document The view document instance.\n\t * @param options An object with configuration options.\n\t * @param options.blockFillerMode The type of the block filler to use.\n\t * Default value depends on the options.renderingMode:\n\t *  'nbsp' when options.renderingMode == 'data',\n\t *  'br' when options.renderingMode == 'editing'.\n\t * @param options.renderingMode Whether to leave the View-to-DOM conversion result unchanged\n\t * or improve editing experience by filtering out interactive data.\n\t */\n\tconstructor(\n\t\tdocument: Document,\n\t\t{ blockFillerMode, renderingMode = 'editing' }: {\n\t\t\tblockFillerMode?: BlockFillerMode;\n\t\t\trenderingMode?: 'data' | 'editing';\n\t\t} = {}\n\t) {\n\t\tthis.document = document;\n\t\tthis.renderingMode = renderingMode;\n\t\tthis.blockFillerMode = blockFillerMode || ( renderingMode === 'editing' ? 'br' : 'nbsp' );\n\t\tthis.preElements = [ 'pre' ];\n\t\tthis.blockElements = [\n\t\t\t'address', 'article', 'aside', 'blockquote', 'caption', 'center', 'dd', 'details', 'dir', 'div',\n\t\t\t'dl', 'dt', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header',\n\t\t\t'hgroup', 'legend', 'li', 'main', 'menu', 'nav', 'ol', 'p', 'pre', 'section', 'summary', 'table', 'tbody',\n\t\t\t'td', 'tfoot', 'th', 'thead', 'tr', 'ul'\n\t\t];\n\t\tthis.inlineObjectElements = [\n\t\t\t'object', 'iframe', 'input', 'button', 'textarea', 'select', 'option', 'video', 'embed', 'audio', 'img', 'canvas'\n\t\t];\n\t\tthis.unsafeElements = [ 'script', 'style' ];\n\n\t\tthis._domDocument = this.renderingMode === 'editing' ? global.document : global.document.implementation.createHTMLDocument( '' );\n\t}\n\n\t/**\n\t * Binds a given DOM element that represents fake selection to a **position** of a\n\t * {@link module:engine/view/documentselection~DocumentSelection document selection}.\n\t * Document selection copy is stored and can be retrieved by the\n\t * {@link module:engine/view/domconverter~DomConverter#fakeSelectionToView} method.\n\t */\n\tpublic bindFakeSelection( domElement: DomElement, viewDocumentSelection: DocumentSelection ): void {\n\t\tthis._fakeSelectionMapping.set( domElement, new ViewSelection( viewDocumentSelection ) );\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/view/selection~Selection view selection} instance corresponding to a given\n\t * DOM element that represents fake selection. Returns `undefined` if binding to the given DOM element does not exist.\n\t */\n\tpublic fakeSelectionToView( domElement: DomElement ): ViewSelection | undefined {\n\t\treturn this._fakeSelectionMapping.get( domElement );\n\t}\n\n\t/**\n\t * Binds DOM and view elements, so it will be possible to get corresponding elements using\n\t * {@link module:engine/view/domconverter~DomConverter#mapDomToView} and\n\t * {@link module:engine/view/domconverter~DomConverter#mapViewToDom}.\n\t *\n\t * @param domElement The DOM element to bind.\n\t * @param viewElement The view element to bind.\n\t */\n\tpublic bindElements( domElement: DomElement, viewElement: ViewElement ): void {\n\t\tthis._domToViewMapping.set( domElement, viewElement );\n\t\tthis._viewToDomMapping.set( viewElement, domElement );\n\t}\n\n\t/**\n\t * Unbinds a given DOM element from the view element it was bound to. Unbinding is deep, meaning that all children of\n\t * the DOM element will be unbound too.\n\t *\n\t * @param domElement The DOM element to unbind.\n\t */\n\tpublic unbindDomElement( domElement: DomElement ): void {\n\t\tconst viewElement = this._domToViewMapping.get( domElement );\n\n\t\tif ( viewElement ) {\n\t\t\tthis._domToViewMapping.delete( domElement );\n\t\t\tthis._viewToDomMapping.delete( viewElement );\n\n\t\t\tfor ( const child of Array.from( domElement.children ) ) {\n\t\t\t\tthis.unbindDomElement( child as DomElement );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Binds DOM and view document fragments, so it will be possible to get corresponding document fragments using\n\t * {@link module:engine/view/domconverter~DomConverter#mapDomToView} and\n\t * {@link module:engine/view/domconverter~DomConverter#mapViewToDom}.\n\t *\n\t * @param domFragment The DOM document fragment to bind.\n\t * @param viewFragment The view document fragment to bind.\n\t */\n\tpublic bindDocumentFragments( domFragment: DomDocumentFragment, viewFragment: ViewDocumentFragment ): void {\n\t\tthis._domToViewMapping.set( domFragment, viewFragment );\n\t\tthis._viewToDomMapping.set( viewFragment, domFragment );\n\t}\n\n\t/**\n\t * Decides whether a given pair of attribute key and value should be passed further down the pipeline.\n\t *\n\t * @param elementName Element name in lower case.\n\t */\n\tpublic shouldRenderAttribute( attributeKey: string, attributeValue: string, elementName: string ): boolean {\n\t\tif ( this.renderingMode === 'data' ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tattributeKey = attributeKey.toLowerCase();\n\n\t\tif ( attributeKey.startsWith( 'on' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif (\n\t\t\tattributeKey === 'srcdoc' &&\n\t\t\tattributeValue.match( /\\bon\\S+\\s*=|javascript:|<\\s*\\/*script/i )\n\t\t) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif (\n\t\t\telementName === 'img' &&\n\t\t\t( attributeKey === 'src' || attributeKey === 'srcset' )\n\t\t) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( elementName === 'source' && attributeKey === 'srcset' ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( attributeValue.match( /^\\s*(javascript:|data:(image\\/svg|text\\/x?html))/i ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Set `domElement`'s content using provided `html` argument. Apply necessary filtering for the editing pipeline.\n\t *\n\t * @param domElement DOM element that should have `html` set as its content.\n\t * @param html Textual representation of the HTML that will be set on `domElement`.\n\t */\n\tpublic setContentOf( domElement: DomElement, html: string ): void {\n\t\t// For data pipeline we pass the HTML as-is.\n\t\tif ( this.renderingMode === 'data' ) {\n\t\t\tdomElement.innerHTML = html;\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst document = new DOMParser().parseFromString( html, 'text/html' );\n\t\tconst fragment = document.createDocumentFragment();\n\t\tconst bodyChildNodes = document.body.childNodes;\n\n\t\twhile ( bodyChildNodes.length > 0 ) {\n\t\t\tfragment.appendChild( bodyChildNodes[ 0 ] );\n\t\t}\n\n\t\tconst treeWalker = document.createTreeWalker( fragment, NodeFilter.SHOW_ELEMENT );\n\t\tconst nodes: Array<DomElement> = [];\n\n\t\tlet currentNode;\n\n\t\t// eslint-disable-next-line no-cond-assign\n\t\twhile ( currentNode = treeWalker.nextNode() ) {\n\t\t\tnodes.push( currentNode as DomElement );\n\t\t}\n\n\t\tfor ( const currentNode of nodes ) {\n\t\t\t// Go through nodes to remove those that are prohibited in editing pipeline.\n\t\t\tfor ( const attributeName of currentNode.getAttributeNames() ) {\n\t\t\t\tthis.setDomElementAttribute( currentNode, attributeName, currentNode.getAttribute( attributeName )! );\n\t\t\t}\n\n\t\t\tconst elementName = currentNode.tagName.toLowerCase();\n\n\t\t\t// There are certain nodes, that should be renamed to <span> in editing pipeline.\n\t\t\tif ( this._shouldRenameElement( elementName ) ) {\n\t\t\t\t_logUnsafeElement( elementName );\n\n\t\t\t\tcurrentNode.replaceWith( this._createReplacementDomElement( elementName, currentNode ) );\n\t\t\t}\n\t\t}\n\n\t\t// Empty the target element.\n\t\twhile ( domElement.firstChild ) {\n\t\t\tdomElement.firstChild.remove();\n\t\t}\n\n\t\tdomElement.append( fragment );\n\t}\n\n\t/**\n\t * Converts the view to the DOM. For all text nodes, not bound elements and document fragments new items will\n\t * be created. For bound elements and document fragments the method will return corresponding items.\n\t *\n\t * @param viewNode View node or document fragment to transform.\n\t * @param options Conversion options.\n\t * @param options.bind Determines whether new elements will be bound.\n\t * @param options.withChildren If `false`, node's and document fragment's children will not be converted.\n\t * @returns Converted node or DocumentFragment.\n\t */\n\tpublic viewToDom(\n\t\tviewNode: ViewNode | ViewDocumentFragment,\n\t\toptions: { bind?: boolean; withChildren?: boolean } = {}\n\t): DomNode | DomDocumentFragment {\n\t\tif ( viewNode.is( '$text' ) ) {\n\t\t\tconst textData = this._processDataFromViewText( viewNode );\n\n\t\t\treturn this._domDocument.createTextNode( textData );\n\t\t} else {\n\t\t\tif ( this.mapViewToDom( viewNode as ViewElement ) ) {\n\t\t\t\treturn this.mapViewToDom( viewNode as ViewElement )!;\n\t\t\t}\n\n\t\t\tlet domElement: DomElement | DomDocumentFragment | DomComment;\n\n\t\t\tif ( viewNode.is( 'documentFragment' ) ) {\n\t\t\t\t// Create DOM document fragment.\n\t\t\t\tdomElement = this._domDocument.createDocumentFragment();\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindDocumentFragments( domElement, viewNode );\n\t\t\t\t}\n\t\t\t} else if ( viewNode.is( 'uiElement' ) ) {\n\t\t\t\tif ( viewNode.name === '$comment' ) {\n\t\t\t\t\tdomElement = this._domDocument.createComment( viewNode.getCustomProperty( '$rawContent' ) as string );\n\t\t\t\t} else {\n\t\t\t\t\t// UIElement has its own render() method (see #799).\n\t\t\t\t\tdomElement = viewNode.render( this._domDocument, this );\n\t\t\t\t}\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindElements( domElement as DomElement, viewNode );\n\t\t\t\t}\n\n\t\t\t\treturn domElement;\n\t\t\t} else {\n\t\t\t\t// Create DOM element.\n\t\t\t\tif ( this._shouldRenameElement( ( viewNode as ViewElement ).name ) ) {\n\t\t\t\t\t_logUnsafeElement( ( viewNode as ViewElement ).name );\n\n\t\t\t\t\tdomElement = this._createReplacementDomElement( ( viewNode as ViewElement ).name );\n\t\t\t\t} else if ( ( viewNode as ViewElement ).hasAttribute( 'xmlns' ) ) {\n\t\t\t\t\tdomElement = this._domDocument.createElementNS(\n\t\t\t\t\t\t( viewNode as ViewElement ).getAttribute( 'xmlns' )!,\n\t\t\t\t\t\t( viewNode as ViewElement ).name\n\t\t\t\t\t) as HTMLElement;\n\t\t\t\t} else {\n\t\t\t\t\tdomElement = this._domDocument.createElement( ( viewNode as ViewElement ).name );\n\t\t\t\t}\n\n\t\t\t\t// RawElement take care of their children in RawElement#render() method which can be customized\n\t\t\t\t// (see https://github.com/ckeditor/ckeditor5/issues/4469).\n\t\t\t\tif ( viewNode.is( 'rawElement' ) ) {\n\t\t\t\t\tviewNode.render( domElement, this );\n\t\t\t\t}\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindElements( domElement, ( viewNode as ViewElement ) );\n\t\t\t\t}\n\n\t\t\t\t// Copy element's attributes.\n\t\t\t\tfor ( const key of ( viewNode as ViewElement ).getAttributeKeys() ) {\n\t\t\t\t\tthis.setDomElementAttribute(\n\t\t\t\t\t\tdomElement,\n\t\t\t\t\t\tkey,\n\t\t\t\t\t\t( viewNode as ViewElement ).getAttribute( key )!,\n\t\t\t\t\t\t( viewNode as ViewElement )\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( options.withChildren !== false ) {\n\t\t\t\tfor ( const child of this.viewChildrenToDom( viewNode as ViewElement, options ) ) {\n\t\t\t\t\tdomElement!.appendChild( child );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn domElement!;\n\t\t}\n\t}\n\n\t/**\n\t * Sets the attribute on a DOM element.\n\t *\n\t * **Note**: To remove the attribute, use {@link #removeDomElementAttribute}.\n\t *\n\t * @param domElement The DOM element the attribute should be set on.\n\t * @param key The name of the attribute.\n\t * @param value The value of the attribute.\n\t * @param relatedViewElement The view element related to the `domElement` (if there is any).\n\t * It helps decide whether the attribute set is unsafe. For instance, view elements created via the\n\t * {@link module:engine/view/downcastwriter~DowncastWriter} methods can allow certain attributes that would normally be filtered out.\n\t */\n\tpublic setDomElementAttribute( domElement: DomElement, key: string, value: string, relatedViewElement?: ViewElement ): void {\n\t\tconst shouldRenderAttribute = this.shouldRenderAttribute( key, value, domElement.tagName.toLowerCase() ) ||\n\t\t\trelatedViewElement && relatedViewElement.shouldRenderUnsafeAttribute( key );\n\n\t\tif ( !shouldRenderAttribute ) {\n\t\t\tlogWarning( 'domconverter-unsafe-attribute-detected', { domElement, key, value } );\n\t\t}\n\n\t\t// The old value was safe but the new value is unsafe.\n\t\tif ( domElement.hasAttribute( key ) && !shouldRenderAttribute ) {\n\t\t\tdomElement.removeAttribute( key );\n\t\t}\n\t\t// The old value was unsafe (but prefixed) but the new value will be safe (will be unprefixed).\n\t\telse if ( domElement.hasAttribute( UNSAFE_ATTRIBUTE_NAME_PREFIX + key ) && shouldRenderAttribute ) {\n\t\t\tdomElement.removeAttribute( UNSAFE_ATTRIBUTE_NAME_PREFIX + key );\n\t\t}\n\n\t\t// If the attribute should not be rendered, rename it (instead of removing) to give developers some idea of what\n\t\t// is going on (https://github.com/ckeditor/ckeditor5/issues/10801).\n\t\tdomElement.setAttribute( shouldRenderAttribute ? key : UNSAFE_ATTRIBUTE_NAME_PREFIX + key, value );\n\t}\n\n\t/**\n\t * Removes an attribute from a DOM element.\n\t *\n\t * **Note**: To set the attribute, use {@link #setDomElementAttribute}.\n\t *\n\t * @param domElement The DOM element the attribute should be removed from.\n\t * @param key The name of the attribute.\n\t */\n\tpublic removeDomElementAttribute( domElement: DomElement, key: string ): void {\n\t\t// See #_createReplacementDomElement() to learn what this is.\n\t\tif ( key == UNSAFE_ELEMENT_REPLACEMENT_ATTRIBUTE ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdomElement.removeAttribute( key );\n\n\t\t// See setDomElementAttribute() to learn what this is.\n\t\tdomElement.removeAttribute( UNSAFE_ATTRIBUTE_NAME_PREFIX + key );\n\t}\n\n\t/**\n\t * Converts children of the view element to DOM using the\n\t * {@link module:engine/view/domconverter~DomConverter#viewToDom} method.\n\t * Additionally, this method adds block {@link module:engine/view/filler filler} to the list of children, if needed.\n\t *\n\t * @param viewElement Parent view element.\n\t * @param options See {@link module:engine/view/domconverter~DomConverter#viewToDom} options parameter.\n\t * @returns DOM nodes.\n\t */\n\tpublic* viewChildrenToDom(\n\t\tviewElement: ViewElement,\n\t\toptions: { bind?: boolean; withChildren?: boolean } = {}\n\t): IterableIterator<Node> {\n\t\tconst fillerPositionOffset = viewElement.getFillerOffset && viewElement.getFillerOffset();\n\t\tlet offset = 0;\n\n\t\tfor ( const childView of viewElement.getChildren() ) {\n\t\t\tif ( fillerPositionOffset === offset ) {\n\t\t\t\tyield this._getBlockFiller();\n\t\t\t}\n\n\t\t\tconst transparentRendering = childView.is( 'element' ) &&\n\t\t\t\t!!childView.getCustomProperty( 'dataPipeline:transparentRendering' ) &&\n\t\t\t\t!first( childView.getAttributes() );\n\n\t\t\tif ( transparentRendering && this.renderingMode == 'data' ) {\n\t\t\t\tyield* this.viewChildrenToDom( childView, options );\n\t\t\t} else {\n\t\t\t\tif ( transparentRendering ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * The `dataPipeline:transparentRendering` flag is supported only in the data pipeline.\n\t\t\t\t\t *\n\t\t\t\t\t * @error domconverter-transparent-rendering-unsupported-in-editing-pipeline\n\t\t\t\t\t */\n\t\t\t\t\tlogWarning( 'domconverter-transparent-rendering-unsupported-in-editing-pipeline', { viewElement: childView } );\n\t\t\t\t}\n\n\t\t\t\tyield this.viewToDom( childView, options );\n\t\t\t}\n\n\t\t\toffset++;\n\t\t}\n\n\t\tif ( fillerPositionOffset === offset ) {\n\t\t\tyield this._getBlockFiller();\n\t\t}\n\t}\n\n\t/**\n\t * Converts view {@link module:engine/view/range~Range} to DOM range.\n\t * Inline and block {@link module:engine/view/filler fillers} are handled during the conversion.\n\t *\n\t * @param viewRange View range.\n\t * @returns DOM range.\n\t */\n\tpublic viewRangeToDom( viewRange: ViewRange ): DomRange {\n\t\tconst domStart = this.viewPositionToDom( viewRange.start )!;\n\t\tconst domEnd = this.viewPositionToDom( viewRange.end )!;\n\n\t\tconst domRange = this._domDocument.createRange();\n\t\tdomRange.setStart( domStart.parent, domStart.offset );\n\t\tdomRange.setEnd( domEnd.parent, domEnd.offset );\n\n\t\treturn domRange;\n\t}\n\n\t/**\n\t * Converts view {@link module:engine/view/position~Position} to DOM parent and offset.\n\t *\n\t * Inline and block {@link module:engine/view/filler fillers} are handled during the conversion.\n\t * If the converted position is directly before inline filler it is moved inside the filler.\n\t *\n\t * @param viewPosition View position.\n\t * @returns DOM position or `null` if view position could not be converted to DOM.\n\t * DOM position has two properties:\n\t * * `parent` - DOM position parent.\n\t * * `offset` - DOM position offset.\n\t */\n\tpublic viewPositionToDom( viewPosition: ViewPosition ): { parent: DomNode; offset: number } | null {\n\t\tconst viewParent = viewPosition.parent;\n\n\t\tif ( viewParent.is( '$text' ) ) {\n\t\t\tconst domParent = this.findCorrespondingDomText( viewParent );\n\n\t\t\tif ( !domParent ) {\n\t\t\t\t// Position is in a view text node that has not been rendered to DOM yet.\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tlet offset = viewPosition.offset;\n\n\t\t\tif ( startsWithFiller( domParent ) ) {\n\t\t\t\toffset += INLINE_FILLER_LENGTH;\n\t\t\t}\n\n\t\t\treturn { parent: domParent, offset };\n\t\t} else {\n\t\t\t// viewParent is instance of ViewElement.\n\t\t\tlet domParent, domBefore, domAfter;\n\n\t\t\tif ( viewPosition.offset === 0 ) {\n\t\t\t\tdomParent = this.mapViewToDom( viewParent as ViewElement );\n\n\t\t\t\tif ( !domParent ) {\n\t\t\t\t\t// Position is in a view element that has not been rendered to DOM yet.\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tdomAfter = domParent.childNodes[ 0 ];\n\t\t\t} else {\n\t\t\t\tconst nodeBefore = viewPosition.nodeBefore!;\n\n\t\t\t\tdomBefore = nodeBefore.is( '$text' ) ?\n\t\t\t\t\tthis.findCorrespondingDomText( nodeBefore ) :\n\t\t\t\t\tthis.mapViewToDom( nodeBefore as ViewElement );\n\n\t\t\t\tif ( !domBefore ) {\n\t\t\t\t\t// Position is after a view element that has not been rendered to DOM yet.\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tdomParent = domBefore.parentNode;\n\t\t\t\tdomAfter = domBefore.nextSibling;\n\t\t\t}\n\n\t\t\t// If there is an inline filler at position return position inside the filler. We should never return\n\t\t\t// the position before the inline filler.\n\t\t\tif ( isText( domAfter ) && startsWithFiller( domAfter ) ) {\n\t\t\t\treturn { parent: domAfter, offset: INLINE_FILLER_LENGTH };\n\t\t\t}\n\n\t\t\tconst offset = domBefore ? indexOf( domBefore ) + 1 : 0;\n\n\t\t\treturn { parent: domParent!, offset };\n\t\t}\n\t}\n\n\t/**\n\t * Converts DOM to view. For all text nodes, not bound elements and document fragments new items will\n\t * be created. For bound elements and document fragments function will return corresponding items. For\n\t * {@link module:engine/view/filler fillers} `null` will be returned.\n\t * For all DOM elements rendered by {@link module:engine/view/uielement~UIElement} that UIElement will be returned.\n\t *\n\t * @param domNode DOM node or document fragment to transform.\n\t * @param options Conversion options.\n\t * @param options.bind Determines whether new elements will be bound. False by default.\n\t * @param options.withChildren If `true`, node's and document fragment's children will be converted too. True by default.\n\t * @param options.keepOriginalCase If `false`, node's tag name will be converted to lower case. False by default.\n\t * @param options.skipComments If `false`, comment nodes will be converted to `$comment`\n\t * {@link module:engine/view/uielement~UIElement view UI elements}. False by default.\n\t * @returns Converted node or document fragment or `null` if DOM node is a {@link module:engine/view/filler filler}\n\t * or the given node is an empty text node.\n\t */\n\tpublic domToView(\n\t\tdomNode: DomNode,\n\t\toptions: {\n\t\t\tbind?: boolean;\n\t\t\twithChildren?: boolean;\n\t\t\tkeepOriginalCase?: boolean;\n\t\t\tskipComments?: boolean;\n\t\t} = {}\n\t): ViewNode | ViewDocumentFragment | null {\n\t\tif ( this.isBlockFiller( domNode ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// When node is inside a UIElement or a RawElement return that parent as it's view representation.\n\t\tconst hostElement = this.getHostViewElement( domNode );\n\n\t\tif ( hostElement ) {\n\t\t\treturn hostElement;\n\t\t}\n\n\t\tif ( isComment( domNode ) && options.skipComments ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( isText( domNode ) ) {\n\t\t\tif ( isInlineFiller( domNode ) ) {\n\t\t\t\treturn null;\n\t\t\t} else {\n\t\t\t\tconst textData = this._processDataFromDomText( domNode );\n\n\t\t\t\treturn textData === '' ? null : new ViewText( this.document, textData );\n\t\t\t}\n\t\t} else {\n\t\t\tif ( this.mapDomToView( domNode as ( DomElement | DomDocumentFragment ) ) ) {\n\t\t\t\treturn this.mapDomToView( domNode as ( DomElement | DomDocumentFragment ) )!;\n\t\t\t}\n\n\t\t\tlet viewElement;\n\n\t\t\tif ( this.isDocumentFragment( domNode ) ) {\n\t\t\t\t// Create view document fragment.\n\t\t\t\tviewElement = new ViewDocumentFragment( this.document );\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindDocumentFragments( domNode, viewElement );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\t// Create view element.\n\t\t\t\tviewElement = this._createViewElement( domNode, options );\n\n\t\t\t\tif ( options.bind ) {\n\t\t\t\t\tthis.bindElements( domNode as DomElement, viewElement );\n\t\t\t\t}\n\n\t\t\t\t// Copy element's attributes.\n\t\t\t\tconst attrs = ( domNode as DomElement ).attributes;\n\n\t\t\t\tif ( attrs ) {\n\t\t\t\t\tfor ( let l = attrs.length, i = 0; i < l; i++ ) {\n\t\t\t\t\t\tviewElement._setAttribute( attrs[ i ].name, attrs[ i ].value );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Treat this element's content as a raw data if it was registered as such.\n\t\t\t\t// Comment node is also treated as an element with raw data.\n\t\t\t\tif ( this._isViewElementWithRawContent( viewElement, options ) || isComment( domNode ) ) {\n\t\t\t\t\tconst rawContent = isComment( domNode ) ? domNode.data : ( domNode as DomElement ).innerHTML;\n\n\t\t\t\t\tviewElement._setCustomProperty( '$rawContent', rawContent );\n\n\t\t\t\t\t// Store a DOM node to prevent left trimming of the following text node.\n\t\t\t\t\tthis._encounteredRawContentDomNodes.add( domNode );\n\n\t\t\t\t\treturn viewElement;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( options.withChildren !== false ) {\n\t\t\t\tfor ( const child of this.domChildrenToView( domNode as DomElement, options ) ) {\n\t\t\t\t\tviewElement._appendChild( child );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn viewElement;\n\t\t}\n\t}\n\n\t/**\n\t * Converts children of the DOM element to view nodes using\n\t * the {@link module:engine/view/domconverter~DomConverter#domToView} method.\n\t * Additionally this method omits block {@link module:engine/view/filler filler}, if it exists in the DOM parent.\n\t *\n\t * @param domElement Parent DOM element.\n\t * @param options See {@link module:engine/view/domconverter~DomConverter#domToView} options parameter.\n\t * @returns View nodes.\n\t */\n\tpublic* domChildrenToView( domElement: DomElement, options: Parameters<DomConverter[ 'domToView' ]>[ 1 ] ):\n\t\tIterableIterator<ViewNode> {\n\t\tfor ( let i = 0; i < domElement.childNodes.length; i++ ) {\n\t\t\tconst domChild = domElement.childNodes[ i ];\n\t\t\tconst viewChild = this.domToView( domChild, options ) as ViewNode | null;\n\n\t\t\tif ( viewChild !== null ) {\n\t\t\t\tyield viewChild;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Converts DOM selection to view {@link module:engine/view/selection~Selection}.\n\t * Ranges which cannot be converted will be omitted.\n\t *\n\t * @param domSelection DOM selection.\n\t * @returns View selection.\n\t */\n\tpublic domSelectionToView( domSelection: DomSelection ): ViewSelection {\n\t\t// DOM selection might be placed in fake selection container.\n\t\t// If container contains fake selection - return corresponding view selection.\n\t\tif ( domSelection.rangeCount === 1 ) {\n\t\t\tlet container: Node | null = domSelection.getRangeAt( 0 ).startContainer;\n\n\t\t\t// The DOM selection might be moved to the text node inside the fake selection container.\n\t\t\tif ( isText( container ) ) {\n\t\t\t\tcontainer = container.parentNode;\n\t\t\t}\n\n\t\t\tconst viewSelection = this.fakeSelectionToView( container as DomElement );\n\n\t\t\tif ( viewSelection ) {\n\t\t\t\treturn viewSelection;\n\t\t\t}\n\t\t}\n\n\t\tconst isBackward = this.isDomSelectionBackward( domSelection );\n\n\t\tconst viewRanges: Array<ViewRange> = [];\n\n\t\tfor ( let i = 0; i < domSelection.rangeCount; i++ ) {\n\t\t\t// DOM Range have correct start and end, no matter what is the DOM Selection direction. So we don't have to fix anything.\n\t\t\tconst domRange = domSelection.getRangeAt( i );\n\t\t\tconst viewRange = this.domRangeToView( domRange );\n\n\t\t\tif ( viewRange ) {\n\t\t\t\tviewRanges.push( viewRange );\n\t\t\t}\n\t\t}\n\n\t\treturn new ViewSelection( viewRanges, { backward: isBackward } );\n\t}\n\n\t/**\n\t * Converts DOM Range to view {@link module:engine/view/range~Range}.\n\t * If the start or end position can not be converted `null` is returned.\n\t *\n\t * @param domRange DOM range.\n\t * @returns View range.\n\t */\n\tpublic domRangeToView( domRange: DomRange | StaticRange ): ViewRange | null {\n\t\tconst viewStart = this.domPositionToView( domRange.startContainer, domRange.startOffset );\n\t\tconst viewEnd = this.domPositionToView( domRange.endContainer, domRange.endOffset );\n\n\t\tif ( viewStart && viewEnd ) {\n\t\t\treturn new ViewRange( viewStart, viewEnd );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Converts DOM parent and offset to view {@link module:engine/view/position~Position}.\n\t *\n\t * If the position is inside a {@link module:engine/view/filler filler} which has no corresponding view node,\n\t * position of the filler will be converted and returned.\n\t *\n\t * If the position is inside DOM element rendered by {@link module:engine/view/uielement~UIElement}\n\t * that position will be converted to view position before that UIElement.\n\t *\n\t * If structures are too different and it is not possible to find corresponding position then `null` will be returned.\n\t *\n\t * @param domParent DOM position parent.\n\t * @param domOffset DOM position offset. You can skip it when converting the inline filler node.\n\t * @returns View position.\n\t */\n\tpublic domPositionToView( domParent: DomNode, domOffset: number = 0 ): ViewPosition | null {\n\t\tif ( this.isBlockFiller( domParent ) ) {\n\t\t\treturn this.domPositionToView( domParent.parentNode!, indexOf( domParent ) );\n\t\t}\n\n\t\t// If position is somewhere inside UIElement or a RawElement - return position before that element.\n\t\tconst viewElement = this.mapDomToView( domParent as DomElement );\n\n\t\tif ( viewElement && ( viewElement.is( 'uiElement' ) || viewElement.is( 'rawElement' ) ) ) {\n\t\t\treturn ViewPosition._createBefore( viewElement );\n\t\t}\n\n\t\tif ( isText( domParent ) ) {\n\t\t\tif ( isInlineFiller( domParent ) ) {\n\t\t\t\treturn this.domPositionToView( domParent.parentNode!, indexOf( domParent ) );\n\t\t\t}\n\n\t\t\tconst viewParent = this.findCorrespondingViewText( domParent );\n\t\t\tlet offset = domOffset;\n\n\t\t\tif ( !viewParent ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tif ( startsWithFiller( domParent ) ) {\n\t\t\t\toffset -= INLINE_FILLER_LENGTH;\n\t\t\t\toffset = offset < 0 ? 0 : offset;\n\t\t\t}\n\n\t\t\treturn new ViewPosition( viewParent, offset );\n\t\t}\n\t\t// domParent instanceof HTMLElement.\n\t\telse {\n\t\t\tif ( domOffset === 0 ) {\n\t\t\t\tconst viewParent = this.mapDomToView( domParent as DomElement );\n\n\t\t\t\tif ( viewParent ) {\n\t\t\t\t\treturn new ViewPosition( viewParent, 0 );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst domBefore = domParent.childNodes[ domOffset - 1 ];\n\n\t\t\t\t// Jump over an inline filler (and also on Firefox jump over a block filler while pressing backspace in an empty paragraph).\n\t\t\t\tif ( isText( domBefore ) && isInlineFiller( domBefore ) || domBefore && this.isBlockFiller( domBefore ) ) {\n\t\t\t\t\treturn this.domPositionToView( domBefore.parentNode!, indexOf( domBefore ) );\n\t\t\t\t}\n\n\t\t\t\tconst viewBefore = isText( domBefore ) ?\n\t\t\t\t\tthis.findCorrespondingViewText( domBefore ) :\n\t\t\t\t\tthis.mapDomToView( domBefore as DomElement );\n\n\t\t\t\t// TODO #663\n\t\t\t\tif ( viewBefore && viewBefore.parent ) {\n\t\t\t\t\treturn new ViewPosition( viewBefore.parent, viewBefore.index! + 1 );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn null;\n\t\t}\n\t}\n\n\t/**\n\t * Returns corresponding view {@link module:engine/view/element~Element Element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment} for provided DOM element or\n\t * document fragment. If there is no view item {@link module:engine/view/domconverter~DomConverter#bindElements bound}\n\t * to the given DOM - `undefined` is returned.\n\t *\n\t * For all DOM elements rendered by a {@link module:engine/view/uielement~UIElement} or\n\t * a {@link module:engine/view/rawelement~RawElement}, the parent `UIElement` or `RawElement` will be returned.\n\t *\n\t * @param domElementOrDocumentFragment DOM element or document fragment.\n\t * @returns Corresponding view element, document fragment or `undefined` if no element was bound.\n\t */\n\tpublic mapDomToView( domElementOrDocumentFragment: DomElement | DomDocumentFragment ): ViewElement | ViewDocumentFragment | undefined {\n\t\tconst hostElement = this.getHostViewElement( domElementOrDocumentFragment );\n\n\t\treturn hostElement || this._domToViewMapping.get( domElementOrDocumentFragment );\n\t}\n\n\t/**\n\t * Finds corresponding text node. Text nodes are not {@link module:engine/view/domconverter~DomConverter#bindElements bound},\n\t * corresponding text node is returned based on the sibling or parent.\n\t *\n\t * If the directly previous sibling is a {@link module:engine/view/domconverter~DomConverter#bindElements bound} element, it is used\n\t * to find the corresponding text node.\n\t *\n\t * If this is a first child in the parent and the parent is a {@link module:engine/view/domconverter~DomConverter#bindElements bound}\n\t * element, it is used to find the corresponding text node.\n\t *\n\t * For all text nodes rendered by a {@link module:engine/view/uielement~UIElement} or\n\t * a {@link module:engine/view/rawelement~RawElement}, the parent `UIElement` or `RawElement` will be returned.\n\t *\n\t * Otherwise `null` is returned.\n\t *\n\t * Note that for the block or inline {@link module:engine/view/filler filler} this method returns `null`.\n\t *\n\t * @param domText DOM text node.\n\t * @returns Corresponding view text node or `null`, if it was not possible to find a corresponding node.\n\t */\n\tpublic findCorrespondingViewText( domText: DomText ): ViewText | ViewUIElement | ViewRawElement | null {\n\t\tif ( isInlineFiller( domText ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// If DOM text was rendered by a UIElement or a RawElement - return this parent element.\n\t\tconst hostElement = this.getHostViewElement( domText );\n\n\t\tif ( hostElement ) {\n\t\t\treturn hostElement;\n\t\t}\n\n\t\tconst previousSibling = domText.previousSibling;\n\n\t\t// Try to use previous sibling to find the corresponding text node.\n\t\tif ( previousSibling ) {\n\t\t\tif ( !( this.isElement( previousSibling ) ) ) {\n\t\t\t\t// The previous is text or comment.\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tconst viewElement = this.mapDomToView( previousSibling );\n\n\t\t\tif ( viewElement ) {\n\t\t\t\tconst nextSibling = ( viewElement as ViewElement ).nextSibling;\n\n\t\t\t\t// It might be filler which has no corresponding view node.\n\t\t\t\tif ( nextSibling instanceof ViewText ) {\n\t\t\t\t\treturn nextSibling;\n\t\t\t\t} else {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t// Try to use parent to find the corresponding text node.\n\t\telse {\n\t\t\tconst viewElement = this.mapDomToView( domText.parentNode as ( DomElement | DomDocumentFragment ) );\n\n\t\t\tif ( viewElement ) {\n\t\t\t\tconst firstChild = ( viewElement as ViewElement ).getChild( 0 );\n\n\t\t\t\t// It might be filler which has no corresponding view node.\n\t\t\t\tif ( firstChild instanceof ViewText ) {\n\t\t\t\t\treturn firstChild;\n\t\t\t\t} else {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns corresponding DOM item for provided {@link module:engine/view/element~Element Element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment}.\n\t * To find a corresponding text for {@link module:engine/view/text~Text view Text instance}\n\t * use {@link #findCorrespondingDomText}.\n\t *\n\t * @label ELEMENT\n\t * @param element View element or document fragment.\n\t * @returns Corresponding DOM node or document fragment.\n\t */\n\tpublic mapViewToDom( element: ViewElement ): DomElement | undefined;\n\n\t/**\n\t * Returns corresponding DOM item for provided {@link module:engine/view/element~Element Element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment}.\n\t * To find a corresponding text for {@link module:engine/view/text~Text view Text instance}\n\t * use {@link #findCorrespondingDomText}.\n\t *\n\t * @label DOCUMENT_FRAGMENT\n\t * @param documentFragment View element or document fragment.\n\t * @returns Corresponding DOM node or document fragment.\n\t */\n\tpublic mapViewToDom( documentFragment: ViewDocumentFragment ): DomDocumentFragment | undefined;\n\n\t/**\n\t * Returns corresponding DOM item for provided {@link module:engine/view/element~Element Element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment DocumentFragment}.\n\t * To find a corresponding text for {@link module:engine/view/text~Text view Text instance}\n\t * use {@link #findCorrespondingDomText}.\n\t *\n\t * @label DOCUMENT_FRAGMENT_OR_ELEMENT\n\t * @param documentFragmentOrElement View element or document fragment.\n\t * @returns Corresponding DOM node or document fragment.\n\t */\n\tpublic mapViewToDom( documentFragmentOrElement: ViewElement | ViewDocumentFragment ): DomElement | DomDocumentFragment | undefined;\n\n\tpublic mapViewToDom( documentFragmentOrElement: ViewElement | ViewDocumentFragment ): DomElement | DomDocumentFragment | undefined {\n\t\treturn this._viewToDomMapping.get( documentFragmentOrElement );\n\t}\n\n\t/**\n\t * Finds corresponding text node. Text nodes are not {@link module:engine/view/domconverter~DomConverter#bindElements bound},\n\t * corresponding text node is returned based on the sibling or parent.\n\t *\n\t * If the directly previous sibling is a {@link module:engine/view/domconverter~DomConverter#bindElements bound} element, it is used\n\t * to find the corresponding text node.\n\t *\n\t * If this is a first child in the parent and the parent is a {@link module:engine/view/domconverter~DomConverter#bindElements bound}\n\t * element, it is used to find the corresponding text node.\n\t *\n\t * Otherwise `null` is returned.\n\t *\n\t * @param viewText View text node.\n\t * @returns Corresponding DOM text node or `null`, if it was not possible to find a corresponding node.\n\t */\n\tpublic findCorrespondingDomText( viewText: ViewText ): DomText | null {\n\t\tconst previousSibling = viewText.previousSibling;\n\n\t\t// Try to use previous sibling to find the corresponding text node.\n\t\tif ( previousSibling && this.mapViewToDom( previousSibling as ViewElement ) ) {\n\t\t\treturn this.mapViewToDom( previousSibling as ViewElement )!.nextSibling as DomText;\n\t\t}\n\n\t\t// If this is a first node, try to use parent to find the corresponding text node.\n\t\tif ( !previousSibling && viewText.parent && this.mapViewToDom( viewText.parent ) ) {\n\t\t\treturn this.mapViewToDom( viewText.parent )!.childNodes[ 0 ] as DomText;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Focuses DOM editable that is corresponding to provided {@link module:engine/view/editableelement~EditableElement}.\n\t */\n\tpublic focus( viewEditable: EditableElement ): void {\n\t\tconst domEditable = this.mapViewToDom( viewEditable );\n\n\t\tif ( domEditable && domEditable.ownerDocument.activeElement !== domEditable ) {\n\t\t\t// Save the scrollX and scrollY positions before the focus.\n\t\t\tconst { scrollX, scrollY } = global.window;\n\t\t\tconst scrollPositions: Array<[ number, number ]> = [];\n\n\t\t\t// Save all scrollLeft and scrollTop values starting from domEditable up to\n\t\t\t// document#documentElement.\n\t\t\tforEachDomElementAncestor( domEditable, node => {\n\t\t\t\tconst { scrollLeft, scrollTop } = ( node as DomElement );\n\n\t\t\t\tscrollPositions.push( [ scrollLeft, scrollTop ] );\n\t\t\t} );\n\n\t\t\tdomEditable.focus();\n\n\t\t\t// Restore scrollLeft and scrollTop values starting from domEditable up to\n\t\t\t// document#documentElement.\n\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/951\n\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/957\n\t\t\tforEachDomElementAncestor( domEditable, node => {\n\t\t\t\tconst [ scrollLeft, scrollTop ] = scrollPositions.shift() as [ number, number ];\n\n\t\t\t\tnode.scrollLeft = scrollLeft;\n\t\t\t\tnode.scrollTop = scrollTop;\n\t\t\t} );\n\n\t\t\t// Restore the scrollX and scrollY positions after the focus.\n\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/951\n\t\t\tglobal.window.scrollTo( scrollX, scrollY );\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when `node.nodeType` equals `Node.ELEMENT_NODE`.\n\t *\n\t * @param node Node to check.\n\t */\n\tpublic isElement( node: DomNode ): node is DomElement {\n\t\treturn node && node.nodeType == Node.ELEMENT_NODE;\n\t}\n\n\t/**\n\t * Returns `true` when `node.nodeType` equals `Node.DOCUMENT_FRAGMENT_NODE`.\n\t *\n\t * @param node Node to check.\n\t */\n\tpublic isDocumentFragment( node: DomNode ): node is DomDocumentFragment {\n\t\treturn node && node.nodeType == Node.DOCUMENT_FRAGMENT_NODE;\n\t}\n\n\t/**\n\t * Checks if the node is an instance of the block filler for this DOM converter.\n\t *\n\t * ```ts\n\t * const converter = new DomConverter( viewDocument, { blockFillerMode: 'br' } );\n\t *\n\t * converter.isBlockFiller( BR_FILLER( document ) ); // true\n\t * converter.isBlockFiller( NBSP_FILLER( document ) ); // false\n\t * ```\n\t *\n\t * **Note:**: For the `'nbsp'` mode the method also checks context of a node so it cannot be a detached node.\n\t *\n\t * **Note:** A special case in the `'nbsp'` mode exists where the `<br>` in `<p><br></p>` is treated as a block filler.\n\t *\n\t * @param domNode DOM node to check.\n\t * @returns True if a node is considered a block filler for given mode.\n\t */\n\tpublic isBlockFiller( domNode: DomNode ): boolean {\n\t\tif ( this.blockFillerMode == 'br' ) {\n\t\t\treturn domNode.isEqualNode( BR_FILLER_REF );\n\t\t}\n\n\t\t// Special case for <p><br></p> in which <br> should be treated as filler even when we are not in the 'br' mode. See ckeditor5#5564.\n\t\tif (\n\t\t\t( domNode as DomElement ).tagName === 'BR' &&\n\t\t\thasBlockParent( domNode, this.blockElements ) &&\n\t\t\t( domNode as DomElement ).parentNode!.childNodes.length === 1\n\t\t) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// If not in 'br' mode, try recognizing both marked and regular nbsp block fillers.\n\t\treturn domNode.isEqualNode( MARKED_NBSP_FILLER_REF ) || isNbspBlockFiller( domNode, this.blockElements );\n\t}\n\n\t/**\n\t * Returns `true` if given selection is a backward selection, that is, if it's `focus` is before `anchor`.\n\t *\n\t * @param DOM Selection instance to check.\n\t */\n\tpublic isDomSelectionBackward( selection: DomSelection ): boolean {\n\t\tif ( selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Since it takes multiple lines of code to check whether a \"DOM Position\" is before/after another \"DOM Position\",\n\t\t// we will use the fact that range will collapse if it's end is before it's start.\n\t\tconst range = this._domDocument.createRange();\n\n\t\ttry {\n\t\t\trange.setStart( selection.anchorNode!, selection.anchorOffset );\n\t\t\trange.setEnd( selection.focusNode!, selection.focusOffset );\n\t\t} catch ( e ) {\n\t\t\t// Safari sometimes gives us a selection that makes Range.set{Start,End} throw.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/12375.\n\t\t\treturn false;\n\t\t}\n\n\t\tconst backward = range.collapsed;\n\n\t\trange.detach();\n\n\t\treturn backward;\n\t}\n\n\t/**\n\t * Returns a parent {@link module:engine/view/uielement~UIElement} or {@link module:engine/view/rawelement~RawElement}\n\t * that hosts the provided DOM node. Returns `null` if there is no such parent.\n\t */\n\tpublic getHostViewElement( domNode: DomNode ): ViewUIElement | ViewRawElement | null {\n\t\tconst ancestors = getAncestors( domNode );\n\n\t\t// Remove domNode from the list.\n\t\tancestors.pop();\n\n\t\twhile ( ancestors.length ) {\n\t\t\tconst domNode = ancestors.pop();\n\t\t\tconst viewNode = this._domToViewMapping.get( domNode as DomElement );\n\n\t\t\tif ( viewNode && ( viewNode.is( 'uiElement' ) || viewNode.is( 'rawElement' ) ) ) {\n\t\t\t\treturn viewNode;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Checks if the given selection's boundaries are at correct places.\n\t *\n\t * The following places are considered as incorrect for selection boundaries:\n\t *\n\t * * before or in the middle of an inline filler sequence,\n\t * * inside a DOM element which represents {@link module:engine/view/uielement~UIElement a view UI element},\n\t * * inside a DOM element which represents {@link module:engine/view/rawelement~RawElement a view raw element}.\n\t *\n\t * @param domSelection The DOM selection object to be checked.\n\t * @returns `true` if the given selection is at a correct place, `false` otherwise.\n\t */\n\tpublic isDomSelectionCorrect( domSelection: DomSelection ): boolean {\n\t\treturn this._isDomSelectionPositionCorrect( domSelection.anchorNode!, domSelection.anchorOffset ) &&\n\t\t\tthis._isDomSelectionPositionCorrect( domSelection.focusNode!, domSelection.focusOffset );\n\t}\n\n\t/**\n\t * Registers a {@link module:engine/view/matcher~MatcherPattern} for view elements whose content should be treated as raw data\n\t * and not processed during the conversion from DOM nodes to view elements.\n\t *\n\t * This is affecting how {@link module:engine/view/domconverter~DomConverter#domToView} and\n\t * {@link module:engine/view/domconverter~DomConverter#domChildrenToView} process DOM nodes.\n\t *\n\t * The raw data can be later accessed by a\n\t * {@link module:engine/view/element~Element#getCustomProperty custom property of a view element} called `\"$rawContent\"`.\n\t *\n\t * @param pattern Pattern matching a view element whose content should\n\t * be treated as raw data.\n\t */\n\tpublic registerRawContentMatcher( pattern: MatcherPattern ): void {\n\t\tthis._rawContentElementMatcher.add( pattern );\n\t}\n\n\t/**\n\t * Returns the block {@link module:engine/view/filler filler} node based on the current {@link #blockFillerMode} setting.\n\t */\n\tprivate _getBlockFiller(): DomNode {\n\t\tswitch ( this.blockFillerMode ) {\n\t\t\tcase 'nbsp':\n\t\t\t\treturn NBSP_FILLER( this._domDocument ); // eslint-disable-line new-cap\n\t\t\tcase 'markedNbsp':\n\t\t\t\treturn MARKED_NBSP_FILLER( this._domDocument ); // eslint-disable-line new-cap\n\t\t\tcase 'br':\n\t\t\t\treturn BR_FILLER( this._domDocument ); // eslint-disable-line new-cap\n\t\t}\n\t}\n\n\t/**\n\t * Checks if the given DOM position is a correct place for selection boundary. See {@link #isDomSelectionCorrect}.\n\t *\n\t * @param domParent Position parent.\n\t * @param offset Position offset.\n\t * @returns `true` if given position is at a correct place for selection boundary, `false` otherwise.\n\t */\n\tprivate _isDomSelectionPositionCorrect( domParent: DomNode, offset: number ): boolean {\n\t\t// If selection is before or in the middle of inline filler string, it is incorrect.\n\t\tif ( isText( domParent ) && startsWithFiller( domParent ) && offset < INLINE_FILLER_LENGTH ) {\n\t\t\t// Selection in a text node, at wrong position (before or in the middle of filler).\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this.isElement( domParent ) && startsWithFiller( domParent.childNodes[ offset ] ) ) {\n\t\t\t// Selection in an element node, before filler text node.\n\t\t\treturn false;\n\t\t}\n\n\t\tconst viewParent = this.mapDomToView( domParent as DomElement );\n\n\t\t// The position is incorrect when anchored inside a UIElement or a RawElement.\n\t\t// Note: In case of UIElement and RawElement, mapDomToView() returns a parent element for any DOM child\n\t\t// so there's no need to perform any additional checks.\n\t\tif ( viewParent && ( viewParent.is( 'uiElement' ) || viewParent.is( 'rawElement' ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Takes text data from a given {@link module:engine/view/text~Text#data} and processes it so\n\t * it is correctly displayed in the DOM.\n\t *\n\t * Following changes are done:\n\t *\n\t * * a space at the beginning is changed to `&nbsp;` if this is the first text node in its container\n\t * element or if a previous text node ends with a space character,\n\t * * space at the end of the text node is changed to `&nbsp;` if there are two spaces at the end of a node or if next node\n\t * starts with a space or if it is the last text node in its container,\n\t * * remaining spaces are replaced to a chain of spaces and `&nbsp;` (e.g. `'x   x'` becomes `'x &nbsp; x'`).\n\t *\n\t * Content of {@link #preElements} is not processed.\n\t *\n\t * @param node View text node to process.\n\t * @returns Processed text data.\n\t */\n\tprivate _processDataFromViewText( node: ViewText | ViewTextProxy ): string {\n\t\tlet data = node.data;\n\n\t\t// If any of node ancestors has a name which is in `preElements` array, then currently processed\n\t\t// view text node is (will be) in preformatted element. We should not change whitespaces then.\n\t\tif ( node.getAncestors().some( parent => this.preElements.includes( ( parent as ViewElement ).name ) ) ) {\n\t\t\treturn data;\n\t\t}\n\n\t\t// 1. Replace the first space with a nbsp if the previous node ends with a space or there is no previous node\n\t\t// (container element boundary).\n\t\tif ( data.charAt( 0 ) == ' ' ) {\n\t\t\tconst prevNode = this._getTouchingInlineViewNode( node as ViewText, false );\n\t\t\tconst prevEndsWithSpace = prevNode && prevNode.is( '$textProxy' ) && this._nodeEndsWithSpace( prevNode as ViewTextProxy );\n\n\t\t\tif ( prevEndsWithSpace || !prevNode ) {\n\t\t\t\tdata = '\\u00A0' + data.substr( 1 );\n\t\t\t}\n\t\t}\n\n\t\t// 2. Replace the last space with nbsp if there are two spaces at the end or if the next node starts with space or there is no\n\t\t// next node (container element boundary).\n\t\t//\n\t\t// Keep in mind that Firefox prefers $nbsp; before tag, not inside it:\n\t\t//\n\t\t// Foo <span>&nbsp;bar</span>  <-- bad.\n\t\t// Foo&nbsp;<span> bar</span>  <-- good.\n\t\t//\n\t\t// More here: https://github.com/ckeditor/ckeditor5-engine/issues/1747.\n\t\tif ( data.charAt( data.length - 1 ) == ' ' ) {\n\t\t\tconst nextNode = this._getTouchingInlineViewNode( node as ViewText, true );\n\t\t\tconst nextStartsWithSpace = nextNode && nextNode.is( '$textProxy' ) && nextNode.data.charAt( 0 ) == ' ';\n\n\t\t\tif ( data.charAt( data.length - 2 ) == ' ' || !nextNode || nextStartsWithSpace ) {\n\t\t\t\tdata = data.substr( 0, data.length - 1 ) + '\\u00A0';\n\t\t\t}\n\t\t}\n\n\t\t// 3. Create space+nbsp pairs.\n\t\treturn data.replace( / {2}/g, ' \\u00A0' );\n\t}\n\n\t/**\n\t * Checks whether given node ends with a space character after changing appropriate space characters to `&nbsp;`s.\n\t *\n\t * @param  node Node to check.\n\t * @returns `true` if given `node` ends with space, `false` otherwise.\n\t */\n\tprivate _nodeEndsWithSpace( node: ViewTextProxy ): boolean {\n\t\tif ( node.getAncestors().some( parent => this.preElements.includes( ( parent as ViewElement ).name ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst data = this._processDataFromViewText( node );\n\n\t\treturn data.charAt( data.length - 1 ) == ' ';\n\t}\n\n\t/**\n\t * Takes text data from native `Text` node and processes it to a correct {@link module:engine/view/text~Text view text node} data.\n\t *\n\t * Following changes are done:\n\t *\n\t * * multiple whitespaces are replaced to a single space,\n\t * * space at the beginning of a text node is removed if it is the first text node in its container\n\t * element or if the previous text node ends with a space character,\n\t * * space at the end of the text node is removed if there are two spaces at the end of a node or if next node\n\t * starts with a space or if it is the last text node in its container\n\t * * nbsps are converted to spaces.\n\t *\n\t * @param node DOM text node to process.\n\t * @returns Processed data.\n\t */\n\tprivate _processDataFromDomText( node: DomText ): string {\n\t\tlet data = node.data;\n\n\t\tif ( _hasDomParentOfType( node, this.preElements ) ) {\n\t\t\treturn getDataWithoutFiller( node );\n\t\t}\n\n\t\t// Change all consecutive whitespace characters (from the [ \\n\\t\\r] set –\n\t\t// see https://github.com/ckeditor/ckeditor5-engine/issues/822#issuecomment-311670249) to a single space character.\n\t\t// That's how multiple whitespaces are treated when rendered, so we normalize those whitespaces.\n\t\t// We're replacing 1+ (and not 2+) to also normalize singular \\n\\t\\r characters (#822).\n\t\tdata = data.replace( /[ \\n\\t\\r]{1,}/g, ' ' );\n\n\t\tconst prevNode = this._getTouchingInlineDomNode( node, false );\n\t\tconst nextNode = this._getTouchingInlineDomNode( node, true );\n\n\t\tconst shouldLeftTrim = this._checkShouldLeftTrimDomText( node, prevNode );\n\t\tconst shouldRightTrim = this._checkShouldRightTrimDomText( node, nextNode );\n\n\t\t// If the previous dom text node does not exist or it ends by whitespace character, remove space character from the beginning\n\t\t// of this text node. Such space character is treated as a whitespace.\n\t\tif ( shouldLeftTrim ) {\n\t\t\tdata = data.replace( /^ /, '' );\n\t\t}\n\n\t\t// If the next text node does not exist remove space character from the end of this text node.\n\t\tif ( shouldRightTrim ) {\n\t\t\tdata = data.replace( / $/, '' );\n\t\t}\n\n\t\t// At the beginning and end of a block element, Firefox inserts normal space + <br> instead of non-breaking space.\n\t\t// This means that the text node starts/end with normal space instead of non-breaking space.\n\t\t// This causes a problem because the normal space would be removed in `.replace` calls above. To prevent that,\n\t\t// the inline filler is removed only after the data is initially processed (by the `.replace` above). See ckeditor5#692.\n\t\tdata = getDataWithoutFiller( new Text( data ) );\n\n\t\t// At this point we should have removed all whitespaces from DOM text data.\n\t\t//\n\t\t// Now, We will reverse the process that happens in `_processDataFromViewText`.\n\t\t//\n\t\t// We have to change &nbsp; chars, that were in DOM text data because of rendering reasons, to spaces.\n\t\t// First, change all ` \\u00A0` pairs (space + &nbsp;) to two spaces. DOM converter changes two spaces from model/view to\n\t\t// ` \\u00A0` to ensure proper rendering. Since here we convert back, we recognize those pairs and change them back to `  `.\n\t\tdata = data.replace( / \\u00A0/g, '  ' );\n\n\t\tconst isNextNodeInlineObjectElement = nextNode && this.isElement( nextNode ) && nextNode.tagName != 'BR';\n\t\tconst isNextNodeStartingWithSpace = nextNode && isText( nextNode ) && nextNode.data.charAt( 0 ) == ' ';\n\n\t\t// Then, let's change the last nbsp to a space.\n\t\tif ( /( |\\u00A0)\\u00A0$/.test( data ) || !nextNode || isNextNodeInlineObjectElement || isNextNodeStartingWithSpace ) {\n\t\t\tdata = data.replace( /\\u00A0$/, ' ' );\n\t\t}\n\n\t\t// Then, change &nbsp; character that is at the beginning of the text node to space character.\n\t\t// We do that replacement only if this is the first node or the previous node ends on whitespace character.\n\t\tif ( shouldLeftTrim || prevNode && this.isElement( prevNode ) && prevNode.tagName != 'BR' ) {\n\t\t\tdata = data.replace( /^\\u00A0/, ' ' );\n\t\t}\n\n\t\t// At this point, all whitespaces should be removed and all &nbsp; created for rendering reasons should be\n\t\t// changed to normal space. All left &nbsp; are &nbsp; inserted intentionally.\n\t\treturn data;\n\t}\n\n\t/**\n\t * Helper function which checks if a DOM text node, preceded by the given `prevNode` should\n\t * be trimmed from the left side.\n\t *\n\t * @param prevNode Either DOM text or `<br>` or one of `#inlineObjectElements`.\n\t */\n\tprivate _checkShouldLeftTrimDomText( node: DomText, prevNode: DomNode | null ): boolean {\n\t\tif ( !prevNode ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( this.isElement( prevNode ) ) {\n\t\t\treturn prevNode.tagName === 'BR';\n\t\t}\n\n\t\t// Shouldn't left trim if previous node is a node that was encountered as a raw content node.\n\t\tif ( this._encounteredRawContentDomNodes.has( node.previousSibling as any ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn /[^\\S\\u00A0]/.test( ( prevNode as DomText ).data.charAt( ( prevNode as DomText ).data.length - 1 ) );\n\t}\n\n\t/**\n\t * Helper function which checks if a DOM text node, succeeded by the given `nextNode` should\n\t * be trimmed from the right side.\n\t *\n\t * @param nextNode Either DOM text or `<br>` or one of `#inlineObjectElements`.\n\t */\n\tprivate _checkShouldRightTrimDomText( node: DomText, nextNode: DomNode | null ): boolean {\n\t\tif ( nextNode ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !startsWithFiller( node );\n\t}\n\n\t/**\n\t * Helper function. For given {@link module:engine/view/text~Text view text node}, it finds previous or next sibling\n\t * that is contained in the same container element. If there is no such sibling, `null` is returned.\n\t *\n\t * @param node Reference node.\n\t * @returns Touching text node, an inline object\n\t * or `null` if there is no next or previous touching text node.\n\t */\n\tprivate _getTouchingInlineViewNode( node: ViewText, getNext: boolean ): ViewElement | ViewTextProxy | null {\n\t\tconst treeWalker = new ViewTreeWalker( {\n\t\t\tstartPosition: getNext ? ViewPosition._createAfter( node ) : ViewPosition._createBefore( node ),\n\t\t\tdirection: getNext ? 'forward' : 'backward'\n\t\t} );\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\t// Found an inline object (for example an image).\n\t\t\tif ( value.item.is( 'element' ) && this.inlineObjectElements.includes( value.item.name ) ) {\n\t\t\t\treturn value.item;\n\t\t\t}\n\t\t\t// ViewContainerElement is found on a way to next ViewText node, so given `node` was first/last\n\t\t\t// text node in its container element.\n\t\t\telse if ( value.item.is( 'containerElement' ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t\t// <br> found – it works like a block boundary, so do not scan further.\n\t\t\telse if ( value.item.is( 'element', 'br' ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t\t// Found a text node in the same container element.\n\t\t\telse if ( value.item.is( '$textProxy' ) ) {\n\t\t\t\treturn value.item;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Helper function. For the given text node, it finds the closest touching node which is either\n\t * a text, `<br>` or an {@link #inlineObjectElements inline object}.\n\t *\n\t * If no such node is found, `null` is returned.\n\t *\n\t * For instance, in the following DOM structure:\n\t *\n\t * ```html\n\t * <p>foo<b>bar</b><br>bom</p>\n\t * ```\n\t *\n\t * * `foo` doesn't have its previous touching inline node (`null` is returned),\n\t * * `foo`'s next touching inline node is `bar`\n\t * * `bar`'s next touching inline node is `<br>`\n\t *\n\t * This method returns text nodes and `<br>` elements because these types of nodes affect how\n\t * spaces in the given text node need to be converted.\n\t */\n\tprivate _getTouchingInlineDomNode( node: DomText, getNext: boolean ): DomNode | null {\n\t\tif ( !node.parentNode ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst stepInto = getNext ? 'firstChild' : 'lastChild';\n\t\tconst stepOver = getNext ? 'nextSibling' : 'previousSibling';\n\n\t\tlet skipChildren = true;\n\t\tlet returnNode: DomNode | null = node;\n\n\t\tdo {\n\t\t\tif ( !skipChildren && returnNode[ stepInto ] ) {\n\t\t\t\treturnNode = returnNode[ stepInto ];\n\t\t\t} else if ( returnNode[ stepOver ] ) {\n\t\t\t\treturnNode = returnNode[ stepOver ];\n\t\t\t\tskipChildren = false;\n\t\t\t} else {\n\t\t\t\treturnNode = returnNode.parentNode;\n\t\t\t\tskipChildren = true;\n\t\t\t}\n\n\t\t\tif ( !returnNode || this._isBlockElement( returnNode ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t} while (\n\t\t\t!( isText( returnNode ) || ( returnNode as DomElement ).tagName == 'BR' || this._isInlineObjectElement( returnNode ) )\n\t\t);\n\n\t\treturn returnNode;\n\t}\n\n\t/**\n\t * Returns `true` if a DOM node belongs to {@link #blockElements}. `false` otherwise.\n\t */\n\tprivate _isBlockElement( node: DomNode ): boolean {\n\t\treturn this.isElement( node ) && this.blockElements.includes( node.tagName.toLowerCase() );\n\t}\n\n\t/**\n\t * Returns `true` if a DOM node belongs to {@link #inlineObjectElements}. `false` otherwise.\n\t */\n\tprivate _isInlineObjectElement( node: DomNode ): boolean {\n\t\treturn this.isElement( node ) && this.inlineObjectElements.includes( node.tagName.toLowerCase() );\n\t}\n\n\t/**\n\t * Creates view element basing on the node type.\n\t *\n\t * @param node DOM node to check.\n\t * @param options Conversion options. See {@link module:engine/view/domconverter~DomConverter#domToView} options parameter.\n\t */\n\tprivate _createViewElement( node: DomNode, options: { keepOriginalCase?: boolean } ): ViewElement {\n\t\tif ( isComment( node ) ) {\n\t\t\treturn new ViewUIElement( this.document, '$comment' );\n\t\t}\n\n\t\tconst viewName = options.keepOriginalCase ? ( node as DomElement ).tagName : ( node as DomElement ).tagName.toLowerCase();\n\n\t\treturn new ViewElement( this.document, viewName );\n\t}\n\n\t/**\n\t * Checks if view element's content should be treated as a raw data.\n\t *\n\t * @param viewElement View element to check.\n\t * @param options Conversion options. See {@link module:engine/view/domconverter~DomConverter#domToView} options parameter.\n\t */\n\tprivate _isViewElementWithRawContent( viewElement: ViewElement, options: { withChildren?: boolean } ): boolean {\n\t\treturn options.withChildren !== false && !!this._rawContentElementMatcher.match( viewElement );\n\t}\n\n\t/**\n\t * Checks whether a given element name should be renamed in a current rendering mode.\n\t *\n\t * @param elementName The name of view element.\n\t */\n\tprivate _shouldRenameElement( elementName: string ): boolean {\n\t\tconst name = elementName.toLowerCase();\n\n\t\treturn this.renderingMode === 'editing' && this.unsafeElements.includes( name );\n\t}\n\n\t/**\n\t * Return a <span> element with a special attribute holding the name of the original element.\n\t * Optionally, copy all the attributes of the original element if that element is provided.\n\t *\n\t * @param elementName The name of view element.\n\t * @param originalDomElement The original DOM element to copy attributes and content from.\n\t */\n\tprivate _createReplacementDomElement( elementName: string, originalDomElement?: DomElement ): DomElement {\n\t\tconst newDomElement = this._domDocument.createElement( 'span' );\n\n\t\t// Mark the span replacing a script as hidden.\n\t\tnewDomElement.setAttribute( UNSAFE_ELEMENT_REPLACEMENT_ATTRIBUTE, elementName );\n\n\t\tif ( originalDomElement ) {\n\t\t\twhile ( originalDomElement.firstChild ) {\n\t\t\t\tnewDomElement.appendChild( originalDomElement.firstChild );\n\t\t\t}\n\n\t\t\tfor ( const attributeName of originalDomElement.getAttributeNames() ) {\n\t\t\t\tnewDomElement.setAttribute( attributeName, originalDomElement.getAttribute( attributeName )! );\n\t\t\t}\n\t\t}\n\n\t\treturn newDomElement;\n\t}\n}\n\n/**\n * Helper function.\n * Used to check if given native `Element` or `Text` node has parent with tag name from `types` array.\n *\n * @returns`true` if such parent exists or `false` if it does not.\n */\nfunction _hasDomParentOfType( node: DomNode, types: ReadonlyArray<string> ) {\n\tconst parents = getAncestors( node );\n\n\treturn parents.some( parent => ( parent as DomElement ).tagName && types.includes( ( parent as DomElement ).tagName.toLowerCase() ) );\n}\n\n/**\n * A helper that executes given callback for each DOM node's ancestor, starting from the given node\n * and ending in document#documentElement.\n *\n * @param callback A callback to be executed for each ancestor.\n */\nfunction forEachDomElementAncestor( element: DomElement, callback: ( node: DomElement ) => void ) {\n\tlet node: DomElement | null = element;\n\n\twhile ( node ) {\n\t\tcallback( node as DomElement );\n\t\tnode = node.parentElement;\n\t}\n}\n\n/**\n * Checks if given node is a nbsp block filler.\n *\n * A &nbsp; is a block filler only if it is a single child of a block element.\n *\n * @param domNode DOM node.\n */\nfunction isNbspBlockFiller( domNode: DomNode, blockElements: ReadonlyArray<string> ): boolean {\n\tconst isNBSP = domNode.isEqualNode( NBSP_FILLER_REF );\n\n\treturn isNBSP && hasBlockParent( domNode, blockElements ) && ( domNode as DomElement ).parentNode!.childNodes.length === 1;\n}\n\n/**\n * Checks if domNode has block parent.\n *\n * @param domNode DOM node.\n */\nfunction hasBlockParent( domNode: DomNode, blockElements: ReadonlyArray<string> ): boolean {\n\tconst parent = domNode.parentNode;\n\n\treturn !!parent && !!( parent as DomElement ).tagName && blockElements.includes( ( parent as DomElement ).tagName.toLowerCase() );\n}\n\n/**\n * Log to console the information about element that was replaced.\n * Check UNSAFE_ELEMENTS for all recognized unsafe elements.\n *\n * @param elementName The name of the view element.\n */\nfunction _logUnsafeElement( elementName: string ): void {\n\tif ( elementName === 'script' ) {\n\t\tlogWarning( 'domconverter-unsafe-script-element-detected' );\n\t}\n\n\tif ( elementName === 'style' ) {\n\t\tlogWarning( 'domconverter-unsafe-style-element-detected' );\n\t}\n}\n\n/**\n * Enum representing the type of the block filler.\n *\n * Possible values:\n *\n * * `br` &ndash; For the `<br data-cke-filler=\"true\">` block filler used in the editing view.\n * * `nbsp` &ndash; For the `&nbsp;` block fillers used in the data.\n * * `markedNbsp` &ndash; For the `&nbsp;` block fillers wrapped in `<span>` elements: `<span data-cke-filler=\"true\">&nbsp;</span>`\n * used in the data.\n */\ntype BlockFillerMode = 'br' | 'nbsp' | 'markedNbsp';\n\n/**\n * While rendering the editor content, the {@link module:engine/view/domconverter~DomConverter} detected a `<script>` element that may\n * disrupt the editing experience. To avoid this, the `<script>` element was replaced with `<span data-ck-unsafe-element=\"script\"></span>`.\n *\n * @error domconverter-unsafe-script-element-detected\n */\n\n/**\n * While rendering the editor content, the {@link module:engine/view/domconverter~DomConverter} detected a `<style>` element that may affect\n * the editing experience. To avoid this, the `<style>` element was replaced with `<span data-ck-unsafe-element=\"style\"></span>`.\n *\n * @error domconverter-unsafe-style-element-detected\n */\n\n/**\n * The {@link module:engine/view/domconverter~DomConverter} detected an interactive attribute in the\n * {@glink framework/architecture/editing-engine#editing-pipeline editing pipeline}. For the best\n * editing experience, the attribute was renamed to `data-ck-unsafe-attribute-[original attribute name]`.\n *\n * If you are the author of the plugin that generated this attribute and you want it to be preserved\n * in the editing pipeline, you can configure this when creating the element\n * using {@link module:engine/view/downcastwriter~DowncastWriter} during the\n * {@glink framework/architecture/editing-engine#conversion model–view conversion}. Methods such as\n * {@link module:engine/view/downcastwriter~DowncastWriter#createContainerElement},\n * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement}, or\n * {@link module:engine/view/downcastwriter~DowncastWriter#createEmptyElement}\n * accept an option that will disable filtering of specific attributes:\n *\n * ```ts\n * const paragraph = writer.createContainerElement( 'p',\n * \t{\n * \t\tclass: 'clickable-paragraph',\n * \t\tonclick: 'alert( \"Paragraph clicked!\" )'\n * \t},\n * \t{\n * \t\t// Make sure the \"onclick\" attribute will pass through.\n * \t\trenderUnsafeAttributes: [ 'onclick' ]\n * \t}\n * );\n * ```\n *\n * @error domconverter-unsafe-attribute-detected\n * @param domElement The DOM element the attribute was set on.\n * @param key The original name of the attribute\n * @param value The value of the original attribute\n */\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/observer\n */\n\nimport { DomEmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from '../document';\nimport type View from '../view';\n\n/**\n * Abstract base observer class. Observers are classes which listen to DOM events, do the preliminary\n * processing and fire events on the {@link module:engine/view/document~Document} objects.\n * Observers can also add features to the view, for instance by updating its status or marking elements\n * which need a refresh on DOM events.\n */\nexport default abstract class Observer extends DomEmitterMixin() {\n\t/**\n\t * An instance of the view controller.\n\t */\n\tpublic readonly view: View;\n\n\t/**\n\t * A reference to the {@link module:engine/view/document~Document} object.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * The state of the observer. If it is disabled, no events will be fired.\n\t */\n\tprivate _isEnabled: boolean = false;\n\n\t/**\n\t * Creates an instance of the observer.\n\t */\n\tconstructor( view: View ) {\n\t\tsuper();\n\n\t\tthis.view = view;\n\t\tthis.document = view.document;\n\t}\n\n\t/**\n\t * The state of the observer. If it is disabled, no events will be fired.\n\t */\n\tpublic get isEnabled(): boolean {\n\t\treturn this._isEnabled;\n\t}\n\n\t/**\n\t * Enables the observer. This method is called when the observer is registered to the\n\t * {@link module:engine/view/view~View} and after {@link module:engine/view/view~View#forceRender rendering}\n\t * (all observers are {@link #disable disabled} before rendering).\n\t *\n\t * A typical use case for disabling observers is that mutation observers need to be disabled for the rendering.\n\t * However, a child class may not need to be disabled, so it can implement an empty method.\n\t *\n\t * @see module:engine/view/observer/observer~Observer#disable\n\t */\n\tpublic enable(): void {\n\t\tthis._isEnabled = true;\n\t}\n\n\t/**\n\t * Disables the observer. This method is called before\n\t * {@link module:engine/view/view~View#forceRender rendering} to prevent firing events during rendering.\n\t *\n\t * @see module:engine/view/observer/observer~Observer#enable\n\t */\n\tpublic disable(): void {\n\t\tthis._isEnabled = false;\n\t}\n\n\t/**\n\t * Disables and destroys the observer, among others removes event listeners created by the observer.\n\t */\n\tpublic destroy(): void {\n\t\tthis.disable();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Checks whether a given DOM event should be ignored (should not be turned into a synthetic view document event).\n\t *\n\t * Currently, an event will be ignored only if its target or any of its ancestors has the `data-cke-ignore-events` attribute.\n\t * This attribute can be used inside the structures generated by\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#createUIElement `DowncastWriter#createUIElement()`} to ignore events\n\t * fired within a UI that should be excluded from CKEditor 5's realms.\n\t *\n\t * @param domTarget The DOM event target to check (usually an element, sometimes a text node and\n\t * potentially sometimes a document, too).\n\t * @returns Whether this event should be ignored by the observer.\n\t */\n\tpublic checkShouldIgnoreEventFromTarget( domTarget: Node | null ): boolean {\n\t\tif ( domTarget && domTarget.nodeType === 3 ) {\n\t\t\tdomTarget = domTarget.parentNode as any;\n\t\t}\n\n\t\tif ( !domTarget || domTarget.nodeType !== 1 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn ( domTarget as any ).matches( '[data-cke-ignore-events], [data-cke-ignore-events] *' );\n\t}\n\n\t/**\n\t * Starts observing given DOM element.\n\t *\n\t * @param domElement DOM element to observe.\n\t * @param name The name of the related root element.\n\t */\n\tpublic abstract observe( domElement: HTMLElement, name: string ): void;\n\n\t/**\n\t * Stops observing given DOM element.\n\t */\n\tpublic abstract stopObserving( domElement: HTMLElement ): void;\n}\n\n/**\n * The constructor of {@link ~Observer} subclass.\n */\nexport type ObserverConstructor = new ( view: View ) => Observer;\n","import copyObject from './_copyObject.js';\nimport createAssigner from './_createAssigner.js';\nimport keysIn from './keysIn.js';\n\n/**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n *   this.a = 1;\n * }\n *\n * function Bar() {\n *   this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\nvar assignIn = createAssigner(function(object, source) {\n  copyObject(source, keysIn(source), object);\n});\n\nexport default assignIn;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/domeventdata\n */\n\nimport { extend } from 'lodash-es';\n\nimport type Document from '../document';\nimport type Element from '../element';\nimport type View from '../view';\n\n/**\n * Information about a DOM event in context of the {@link module:engine/view/document~Document}.\n * It wraps the native event, which usually should not be used as the wrapper contains\n * additional data (like key code for keyboard events).\n *\n * @typeParam TEvent The type of DOM Event that this class represents.\n */\nexport default class DomEventData<TEvent extends Event = Event> {\n\t/**\n\t * Instance of the view controller.\n\t */\n\tpublic readonly view: View;\n\n\t/**\n\t * The instance of the document.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * The DOM event.\n\t */\n\tpublic readonly domEvent: TEvent;\n\n\t/**\n\t * The DOM target.\n\t */\n\tpublic readonly domTarget: HTMLElement;\n\n\t/**\n\t * @param view The instance of the view controller.\n\t * @param domEvent The DOM event.\n\t * @param additionalData Additional properties that the instance should contain.\n\t */\n\tconstructor( view: View, domEvent: TEvent, additionalData?: object ) {\n\t\tthis.view = view;\n\t\tthis.document = view.document;\n\t\tthis.domEvent = domEvent;\n\t\tthis.domTarget = domEvent.target as any;\n\n\t\textend( this, additionalData );\n\t}\n\n\t/**\n\t * The tree view element representing the target.\n\t */\n\tpublic get target(): Element {\n\t\treturn this.view.domConverter.mapDomToView( this.domTarget ) as Element;\n\t}\n\n\t/**\n\t * Prevents the native's event default action.\n\t */\n\tpublic preventDefault(): void {\n\t\tthis.domEvent.preventDefault();\n\t}\n\n\t/**\n\t * Stops native event propagation.\n\t */\n\tpublic stopPropagation(): void {\n\t\tthis.domEvent.stopPropagation();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/domeventobserver\n */\n\nimport Observer from './observer';\nimport DomEventData from './domeventdata';\n\nimport type { EventInfo } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Base class for DOM event observers. This class handles\n * {@link module:engine/view/observer/observer~Observer#observe adding} listeners to DOM elements,\n * {@link module:engine/view/observer/observer~Observer#disable disabling} and\n * {@link module:engine/view/observer/observer~Observer#enable re-enabling} events.\n * Child class needs to define\n * {@link module:engine/view/observer/domeventobserver~DomEventObserver#domEventType DOM event type} and\n * {@link module:engine/view/observer/domeventobserver~DomEventObserver#onDomEvent callback}.\n *\n * For instance:\n *\n * ```ts\n * class ClickObserver extends DomEventObserver<'click'> {\n * \t// It can also be defined as a normal property in the constructor.\n * \tget domEventType(): 'click' {\n * \t\treturn 'click';\n * \t}\n *\n * \tonDomEvent( domEvent: MouseEvent ): void {\n * \t\tthis.fire( 'click', domEvent );\n * \t}\n * }\n * ```\n *\n * @typeParam EventType DOM Event type name or an union of those.\n * @typeParam AdditionalData Additional data passed along with the event.\n */\n\nexport default abstract class DomEventObserver<\n\tEventType extends keyof HTMLElementEventMap,\n\tAdditionalData extends object = object\n> extends Observer {\n\t/**\n\t * Type of the DOM event the observer should listen to. Array of types can be defined\n\t * if the observer should listen to multiple DOM events.\n\t */\n\tpublic abstract get domEventType(): EventType | ReadonlyArray<EventType>;\n\n\t/**\n\t * If set to `true` DOM events will be listened on the capturing phase.\n\t * Default value is `false`.\n\t */\n\tpublic useCapture: boolean = false;\n\n\t/**\n\t * Callback which should be called when the DOM event occurred. Note that the callback will not be called if\n\t * observer {@link #isEnabled is not enabled}.\n\t *\n\t * @see #domEventType\n\t */\n\tpublic abstract onDomEvent( event: HTMLElementEventMap[ EventType ] ): void;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe( domElement: HTMLElement ): void {\n\t\tconst types = typeof this.domEventType == 'string' ? [ this.domEventType ] : this.domEventType;\n\n\t\ttypes.forEach( type => {\n\t\t\tthis.listenTo( domElement, type, ( eventInfo, domEvent ) => {\n\t\t\t\tif ( this.isEnabled && !this.checkShouldIgnoreEventFromTarget( domEvent.target as any ) ) {\n\t\t\t\t\tthis.onDomEvent( domEvent );\n\t\t\t\t}\n\t\t\t}, { useCapture: this.useCapture } );\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override stopObserving( domElement: HTMLElement ): void {\n\t\tthis.stopListening( domElement );\n\t}\n\n\t/**\n\t * Calls `Document#fire()` if observer {@link #isEnabled is enabled}.\n\t *\n\t * @see module:utils/emittermixin~Emitter#fire\n\t * @param eventType The event type (name).\n\t * @param domEvent The DOM event.\n\t * @param additionalData The additional data which should extend the\n\t * {@link module:engine/view/observer/domeventdata~DomEventData event data} object.\n\t */\n\tpublic override fire( eventType: string | EventInfo, domEvent: Event, additionalData?: AdditionalData ): void {\n\t\tif ( this.isEnabled ) {\n\t\t\tthis.document.fire( eventType, new DomEventData( this.view, domEvent, additionalData ) );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/keyobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport { getCode, type KeystrokeInfo } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Observer for events connected with pressing keyboard keys.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n */\nexport default class KeyObserver extends DomEventObserver<'keydown' | 'keyup', KeystrokeInfo & { keystroke: number }> {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly domEventType = [ 'keydown', 'keyup' ] as const;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic onDomEvent( domEvt: KeyboardEvent ): void {\n\t\tconst data = {\n\t\t\tkeyCode: domEvt.keyCode,\n\n\t\t\taltKey: domEvt.altKey,\n\t\t\tctrlKey: domEvt.ctrlKey,\n\t\t\tshiftKey: domEvt.shiftKey,\n\t\t\tmetaKey: domEvt.metaKey,\n\n\t\t\tget keystroke() {\n\t\t\t\treturn getCode( this );\n\t\t\t}\n\t\t};\n\n\t\tthis.fire( domEvt.type, domEvt, data );\n\t}\n}\n\n/**\n * Fired when a key has been pressed.\n *\n * Introduced by {@link module:engine/view/observer/keyobserver~KeyObserver}.\n *\n * Note that because {@link module:engine/view/observer/keyobserver~KeyObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/keyobserver~KeyObserver\n * @eventName module:engine/view/document~Document#keydown\n */\nexport type ViewDocumentKeyDownEvent = {\n\tname: 'keydown';\n\targs: [ data: KeyEventData ];\n};\n\n/**\n * Fired when a key has been released.\n *\n * Introduced by {@link module:engine/view/observer/keyobserver~KeyObserver}.\n *\n * Note that because {@link module:engine/view/observer/keyobserver~KeyObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/keyobserver~KeyObserver\n * @eventName module:engine/view/document~Document#keyup\n */\nexport type ViewDocumentKeyUpEvent = {\n\tname: 'keyup';\n\targs: [ data: KeyEventData ];\n};\n\n/**\n * The value of both events - {@link ~ViewDocumentKeyDownEvent} and {@link ~ViewDocumentKeyUpEvent}.\n */\nexport interface KeyEventData extends DomEventData<KeyboardEvent>, KeystrokeInfo {\n\n\t/**\n\t * Code of the whole keystroke. See {@link module:utils/keyboard~getCode}.\n\t */\n\tkeystroke: number;\n}\n","import root from './_root.js';\n\n/**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n *   console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\nvar now = function() {\n  return root.Date.now();\n};\n\nexport default now;\n","/** Used to match a single whitespace character. */\nvar reWhitespace = /\\s/;\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\nfunction trimmedEndIndex(string) {\n  var index = string.length;\n\n  while (index-- && reWhitespace.test(string.charAt(index))) {}\n  return index;\n}\n\nexport default trimmedEndIndex;\n","import trimmedEndIndex from './_trimmedEndIndex.js';\n\n/** Used to match leading whitespace. */\nvar reTrimStart = /^\\s+/;\n\n/**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\nfunction baseTrim(string) {\n  return string\n    ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n    : string;\n}\n\nexport default baseTrim;\n","import baseTrim from './_baseTrim.js';\nimport isObject from './isObject.js';\nimport isSymbol from './isSymbol.js';\n\n/** Used as references for various `Number` constants. */\nvar NAN = 0 / 0;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n  if (typeof value == 'number') {\n    return value;\n  }\n  if (isSymbol(value)) {\n    return NAN;\n  }\n  if (isObject(value)) {\n    var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n    value = isObject(other) ? (other + '') : other;\n  }\n  if (typeof value != 'string') {\n    return value === 0 ? value : +value;\n  }\n  value = baseTrim(value);\n  var isBinary = reIsBinary.test(value);\n  return (isBinary || reIsOctal.test(value))\n    ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n    : (reIsBadHex.test(value) ? NAN : +value);\n}\n\nexport default toNumber;\n","import isObject from './isObject.js';\nimport now from './now.js';\nimport toNumber from './toNumber.js';\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max,\n    nativeMin = Math.min;\n\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n *  Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n *  The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n *  Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n *   'leading': true,\n *   'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\nfunction debounce(func, wait, options) {\n  var lastArgs,\n      lastThis,\n      maxWait,\n      result,\n      timerId,\n      lastCallTime,\n      lastInvokeTime = 0,\n      leading = false,\n      maxing = false,\n      trailing = true;\n\n  if (typeof func != 'function') {\n    throw new TypeError(FUNC_ERROR_TEXT);\n  }\n  wait = toNumber(wait) || 0;\n  if (isObject(options)) {\n    leading = !!options.leading;\n    maxing = 'maxWait' in options;\n    maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n    trailing = 'trailing' in options ? !!options.trailing : trailing;\n  }\n\n  function invokeFunc(time) {\n    var args = lastArgs,\n        thisArg = lastThis;\n\n    lastArgs = lastThis = undefined;\n    lastInvokeTime = time;\n    result = func.apply(thisArg, args);\n    return result;\n  }\n\n  function leadingEdge(time) {\n    // Reset any `maxWait` timer.\n    lastInvokeTime = time;\n    // Start the timer for the trailing edge.\n    timerId = setTimeout(timerExpired, wait);\n    // Invoke the leading edge.\n    return leading ? invokeFunc(time) : result;\n  }\n\n  function remainingWait(time) {\n    var timeSinceLastCall = time - lastCallTime,\n        timeSinceLastInvoke = time - lastInvokeTime,\n        timeWaiting = wait - timeSinceLastCall;\n\n    return maxing\n      ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n      : timeWaiting;\n  }\n\n  function shouldInvoke(time) {\n    var timeSinceLastCall = time - lastCallTime,\n        timeSinceLastInvoke = time - lastInvokeTime;\n\n    // Either this is the first call, activity has stopped and we're at the\n    // trailing edge, the system time has gone backwards and we're treating\n    // it as the trailing edge, or we've hit the `maxWait` limit.\n    return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n      (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n  }\n\n  function timerExpired() {\n    var time = now();\n    if (shouldInvoke(time)) {\n      return trailingEdge(time);\n    }\n    // Restart the timer.\n    timerId = setTimeout(timerExpired, remainingWait(time));\n  }\n\n  function trailingEdge(time) {\n    timerId = undefined;\n\n    // Only invoke if we have `lastArgs` which means `func` has been\n    // debounced at least once.\n    if (trailing && lastArgs) {\n      return invokeFunc(time);\n    }\n    lastArgs = lastThis = undefined;\n    return result;\n  }\n\n  function cancel() {\n    if (timerId !== undefined) {\n      clearTimeout(timerId);\n    }\n    lastInvokeTime = 0;\n    lastArgs = lastCallTime = lastThis = timerId = undefined;\n  }\n\n  function flush() {\n    return timerId === undefined ? result : trailingEdge(now());\n  }\n\n  function debounced() {\n    var time = now(),\n        isInvoking = shouldInvoke(time);\n\n    lastArgs = arguments;\n    lastThis = this;\n    lastCallTime = time;\n\n    if (isInvoking) {\n      if (timerId === undefined) {\n        return leadingEdge(lastCallTime);\n      }\n      if (maxing) {\n        // Handle invocations in a tight loop.\n        clearTimeout(timerId);\n        timerId = setTimeout(timerExpired, wait);\n        return invokeFunc(lastCallTime);\n      }\n    }\n    if (timerId === undefined) {\n      timerId = setTimeout(timerExpired, wait);\n    }\n    return result;\n  }\n  debounced.cancel = cancel;\n  debounced.flush = flush;\n  return debounced;\n}\n\nexport default debounce;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/fakeselectionobserver\n */\n\nimport Observer from './observer';\nimport type { ViewDocumentArrowKeyEvent } from './arrowkeysobserver';\nimport ViewSelection from '../selection';\nimport type View from '../view';\nimport type {\n\tViewDocumentSelectionChangeEvent,\n\tViewDocumentSelectionChangeDoneEvent,\n\tViewDocumentSelectionEventData\n} from './selectionobserver';\nimport { keyCodes } from '@ckeditor/ckeditor5-utils';\nimport { debounce, type DebouncedFunc } from 'lodash-es';\n\n/**\n * Fake selection observer class. If view selection is fake it is placed in dummy DOM container. This observer listens\n * on {@link module:engine/view/document~Document#event:keydown keydown} events and handles moving fake view selection to the correct place\n * if arrow keys are pressed.\n * Fires {@link module:engine/view/document~Document#event:selectionChange selectionChange event} simulating natural behaviour of\n * {@link module:engine/view/observer/selectionobserver~SelectionObserver SelectionObserver}.\n */\nexport default class FakeSelectionObserver extends Observer {\n\t/**\n\t * Fires debounced event `selectionChangeDone`. It uses `lodash#debounce` method to delay function call.\n\t */\n\tprivate readonly _fireSelectionChangeDoneDebounced: DebouncedFunc<( data: ViewDocumentSelectionEventData ) => void>;\n\n\t/**\n\t * Creates new FakeSelectionObserver instance.\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis._fireSelectionChangeDoneDebounced = debounce( data => {\n\t\t\tthis.document.fire<ViewDocumentSelectionChangeDoneEvent>( 'selectionChangeDone', data );\n\t\t}, 200 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe(): void {\n\t\tconst document = this.document;\n\n\t\tdocument.on<ViewDocumentArrowKeyEvent>( 'arrowKey', ( eventInfo, data ) => {\n\t\t\tconst selection = document.selection;\n\n\t\t\tif ( selection.isFake && this.isEnabled ) {\n\t\t\t\t// Prevents default key down handling - no selection change will occur.\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\t\t}, { context: '$capture' } );\n\n\t\tdocument.on<ViewDocumentArrowKeyEvent>( 'arrowKey', ( eventInfo, data ) => {\n\t\t\tconst selection = document.selection;\n\n\t\t\tif ( selection.isFake && this.isEnabled ) {\n\t\t\t\tthis._handleSelectionMove( data.keyCode );\n\t\t\t}\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override stopObserving(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._fireSelectionChangeDoneDebounced.cancel();\n\t}\n\n\t/**\n\t * Handles collapsing view selection according to given key code. If left or up key is provided - new selection will be\n\t * collapsed to left. If right or down key is pressed - new selection will be collapsed to right.\n\t *\n\t * This method fires {@link module:engine/view/document~Document#event:selectionChange} and\n\t * {@link module:engine/view/document~Document#event:selectionChangeDone} events imitating behaviour of\n\t * {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n\t */\n\tprivate _handleSelectionMove( keyCode: number ): void {\n\t\tconst selection = this.document.selection;\n\t\tconst newSelection = new ViewSelection( selection.getRanges(), { backward: selection.isBackward, fake: false } );\n\n\t\t// Left or up arrow pressed - move selection to start.\n\t\tif ( keyCode == keyCodes.arrowleft || keyCode == keyCodes.arrowup ) {\n\t\t\tnewSelection.setTo( newSelection.getFirstPosition() );\n\t\t}\n\n\t\t// Right or down arrow pressed - move selection to end.\n\t\tif ( keyCode == keyCodes.arrowright || keyCode == keyCodes.arrowdown ) {\n\t\t\tnewSelection.setTo( newSelection.getLastPosition() );\n\t\t}\n\n\t\tconst data = {\n\t\t\toldSelection: selection,\n\t\t\tnewSelection,\n\t\t\tdomSelection: null\n\t\t};\n\n\t\t// Fire dummy selection change event.\n\t\tthis.document.fire<ViewDocumentSelectionChangeEvent>( 'selectionChange', data );\n\n\t\t// Call` #_fireSelectionChangeDoneDebounced` every time when `selectionChange` event is fired.\n\t\t// This function is debounced what means that `selectionChangeDone` event will be fired only when\n\t\t// defined int the function time will elapse since the last time the function was called.\n\t\t// So `selectionChangeDone` will be fired when selection will stop changing.\n\t\tthis._fireSelectionChangeDoneDebounced( data );\n\t}\n}\n","/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\nfunction setCacheAdd(value) {\n  this.__data__.set(value, HASH_UNDEFINED);\n  return this;\n}\n\nexport default setCacheAdd;\n","/**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\nfunction setCacheHas(value) {\n  return this.__data__.has(value);\n}\n\nexport default setCacheHas;\n","import MapCache from './_MapCache.js';\nimport setCacheAdd from './_setCacheAdd.js';\nimport setCacheHas from './_setCacheHas.js';\n\n/**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\nfunction SetCache(values) {\n  var index = -1,\n      length = values == null ? 0 : values.length;\n\n  this.__data__ = new MapCache;\n  while (++index < length) {\n    this.add(values[index]);\n  }\n}\n\n// Add methods to `SetCache`.\nSetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\nSetCache.prototype.has = setCacheHas;\n\nexport default SetCache;\n","/**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n *  else `false`.\n */\nfunction arraySome(array, predicate) {\n  var index = -1,\n      length = array == null ? 0 : array.length;\n\n  while (++index < length) {\n    if (predicate(array[index], index, array)) {\n      return true;\n    }\n  }\n  return false;\n}\n\nexport default arraySome;\n","/**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction cacheHas(cache, key) {\n  return cache.has(key);\n}\n\nexport default cacheHas;\n","import SetCache from './_SetCache.js';\nimport arraySome from './_arraySome.js';\nimport cacheHas from './_cacheHas.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n    COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\nfunction equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n  var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n      arrLength = array.length,\n      othLength = other.length;\n\n  if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n    return false;\n  }\n  // Check that cyclic values are equal.\n  var arrStacked = stack.get(array);\n  var othStacked = stack.get(other);\n  if (arrStacked && othStacked) {\n    return arrStacked == other && othStacked == array;\n  }\n  var index = -1,\n      result = true,\n      seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n  stack.set(array, other);\n  stack.set(other, array);\n\n  // Ignore non-index properties.\n  while (++index < arrLength) {\n    var arrValue = array[index],\n        othValue = other[index];\n\n    if (customizer) {\n      var compared = isPartial\n        ? customizer(othValue, arrValue, index, other, array, stack)\n        : customizer(arrValue, othValue, index, array, other, stack);\n    }\n    if (compared !== undefined) {\n      if (compared) {\n        continue;\n      }\n      result = false;\n      break;\n    }\n    // Recursively compare arrays (susceptible to call stack limits).\n    if (seen) {\n      if (!arraySome(other, function(othValue, othIndex) {\n            if (!cacheHas(seen, othIndex) &&\n                (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n              return seen.push(othIndex);\n            }\n          })) {\n        result = false;\n        break;\n      }\n    } else if (!(\n          arrValue === othValue ||\n            equalFunc(arrValue, othValue, bitmask, customizer, stack)\n        )) {\n      result = false;\n      break;\n    }\n  }\n  stack['delete'](array);\n  stack['delete'](other);\n  return result;\n}\n\nexport default equalArrays;\n","/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n  var index = -1,\n      result = Array(map.size);\n\n  map.forEach(function(value, key) {\n    result[++index] = [key, value];\n  });\n  return result;\n}\n\nexport default mapToArray;\n","/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n  var index = -1,\n      result = Array(set.size);\n\n  set.forEach(function(value) {\n    result[++index] = value;\n  });\n  return result;\n}\n\nexport default setToArray;\n","import Symbol from './_Symbol.js';\nimport Uint8Array from './_Uint8Array.js';\nimport eq from './eq.js';\nimport equalArrays from './_equalArrays.js';\nimport mapToArray from './_mapToArray.js';\nimport setToArray from './_setToArray.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n    COMPARE_UNORDERED_FLAG = 2;\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n    dateTag = '[object Date]',\n    errorTag = '[object Error]',\n    mapTag = '[object Map]',\n    numberTag = '[object Number]',\n    regexpTag = '[object RegExp]',\n    setTag = '[object Set]',\n    stringTag = '[object String]',\n    symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n    dataViewTag = '[object DataView]';\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n  switch (tag) {\n    case dataViewTag:\n      if ((object.byteLength != other.byteLength) ||\n          (object.byteOffset != other.byteOffset)) {\n        return false;\n      }\n      object = object.buffer;\n      other = other.buffer;\n\n    case arrayBufferTag:\n      if ((object.byteLength != other.byteLength) ||\n          !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n        return false;\n      }\n      return true;\n\n    case boolTag:\n    case dateTag:\n    case numberTag:\n      // Coerce booleans to `1` or `0` and dates to milliseconds.\n      // Invalid dates are coerced to `NaN`.\n      return eq(+object, +other);\n\n    case errorTag:\n      return object.name == other.name && object.message == other.message;\n\n    case regexpTag:\n    case stringTag:\n      // Coerce regexes to strings and treat strings, primitives and objects,\n      // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n      // for more details.\n      return object == (other + '');\n\n    case mapTag:\n      var convert = mapToArray;\n\n    case setTag:\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n      convert || (convert = setToArray);\n\n      if (object.size != other.size && !isPartial) {\n        return false;\n      }\n      // Assume cyclic values are equal.\n      var stacked = stack.get(object);\n      if (stacked) {\n        return stacked == other;\n      }\n      bitmask |= COMPARE_UNORDERED_FLAG;\n\n      // Recursively compare objects (susceptible to call stack limits).\n      stack.set(object, other);\n      var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n      stack['delete'](object);\n      return result;\n\n    case symbolTag:\n      if (symbolValueOf) {\n        return symbolValueOf.call(object) == symbolValueOf.call(other);\n      }\n  }\n  return false;\n}\n\nexport default equalByTag;\n","import getAllKeys from './_getAllKeys.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n  var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n      objProps = getAllKeys(object),\n      objLength = objProps.length,\n      othProps = getAllKeys(other),\n      othLength = othProps.length;\n\n  if (objLength != othLength && !isPartial) {\n    return false;\n  }\n  var index = objLength;\n  while (index--) {\n    var key = objProps[index];\n    if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n      return false;\n    }\n  }\n  // Check that cyclic values are equal.\n  var objStacked = stack.get(object);\n  var othStacked = stack.get(other);\n  if (objStacked && othStacked) {\n    return objStacked == other && othStacked == object;\n  }\n  var result = true;\n  stack.set(object, other);\n  stack.set(other, object);\n\n  var skipCtor = isPartial;\n  while (++index < objLength) {\n    key = objProps[index];\n    var objValue = object[key],\n        othValue = other[key];\n\n    if (customizer) {\n      var compared = isPartial\n        ? customizer(othValue, objValue, key, other, object, stack)\n        : customizer(objValue, othValue, key, object, other, stack);\n    }\n    // Recursively compare objects (susceptible to call stack limits).\n    if (!(compared === undefined\n          ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n          : compared\n        )) {\n      result = false;\n      break;\n    }\n    skipCtor || (skipCtor = key == 'constructor');\n  }\n  if (result && !skipCtor) {\n    var objCtor = object.constructor,\n        othCtor = other.constructor;\n\n    // Non `Object` object instances with different constructors are not equal.\n    if (objCtor != othCtor &&\n        ('constructor' in object && 'constructor' in other) &&\n        !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n          typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n      result = false;\n    }\n  }\n  stack['delete'](object);\n  stack['delete'](other);\n  return result;\n}\n\nexport default equalObjects;\n","import Stack from './_Stack.js';\nimport equalArrays from './_equalArrays.js';\nimport equalByTag from './_equalByTag.js';\nimport equalObjects from './_equalObjects.js';\nimport getTag from './_getTag.js';\nimport isArray from './isArray.js';\nimport isBuffer from './isBuffer.js';\nimport isTypedArray from './isTypedArray.js';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n    arrayTag = '[object Array]',\n    objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n  var objIsArr = isArray(object),\n      othIsArr = isArray(other),\n      objTag = objIsArr ? arrayTag : getTag(object),\n      othTag = othIsArr ? arrayTag : getTag(other);\n\n  objTag = objTag == argsTag ? objectTag : objTag;\n  othTag = othTag == argsTag ? objectTag : othTag;\n\n  var objIsObj = objTag == objectTag,\n      othIsObj = othTag == objectTag,\n      isSameTag = objTag == othTag;\n\n  if (isSameTag && isBuffer(object)) {\n    if (!isBuffer(other)) {\n      return false;\n    }\n    objIsArr = true;\n    objIsObj = false;\n  }\n  if (isSameTag && !objIsObj) {\n    stack || (stack = new Stack);\n    return (objIsArr || isTypedArray(object))\n      ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n      : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n  }\n  if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n    var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n        othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n    if (objIsWrapped || othIsWrapped) {\n      var objUnwrapped = objIsWrapped ? object.value() : object,\n          othUnwrapped = othIsWrapped ? other.value() : other;\n\n      stack || (stack = new Stack);\n      return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n    }\n  }\n  if (!isSameTag) {\n    return false;\n  }\n  stack || (stack = new Stack);\n  return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n}\n\nexport default baseIsEqualDeep;\n","import baseIsEqualDeep from './_baseIsEqualDeep.js';\nimport isObjectLike from './isObjectLike.js';\n\n/**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n *  1 - Unordered comparison\n *  2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\nfunction baseIsEqual(value, other, bitmask, customizer, stack) {\n  if (value === other) {\n    return true;\n  }\n  if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n    return value !== value && other !== other;\n  }\n  return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n}\n\nexport default baseIsEqual;\n","import baseIsEqual from './_baseIsEqual.js';\n\n/**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n *   return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n *   if (isGreeting(objValue) && isGreeting(othValue)) {\n *     return true;\n *   }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\nfunction isEqualWith(value, other, customizer) {\n  customizer = typeof customizer == 'function' ? customizer : undefined;\n  var result = customizer ? customizer(value, other) : undefined;\n  return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n}\n\nexport default isEqualWith;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/mutationobserver\n */\n\n/* globals window */\n\nimport Observer from './observer';\nimport { startsWithFiller } from '../filler';\nimport { isEqualWith } from 'lodash-es';\n\nimport type DomConverter from '../domconverter';\nimport type Renderer from '../renderer';\nimport type View from '../view';\nimport type ViewElement from '../element';\nimport type ViewNode from '../node';\nimport type ViewText from '../text';\n\n/**\n * Mutation observer's role is to watch for any DOM changes inside the editor that weren't\n * done by the editor's {@link module:engine/view/renderer~Renderer} itself and reverting these changes.\n *\n * It does this by observing all mutations in the DOM, marking related view elements as changed and calling\n * {@link module:engine/view/renderer~Renderer#render}. Because all mutated nodes are marked as\n * \"to be rendered\" and the {@link module:engine/view/renderer~Renderer#render `render()`} method is called,\n * all changes are reverted in the DOM (the DOM is synced with the editor's view structure).\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n */\nexport default class MutationObserver extends Observer {\n\t/**\n\t * Reference to the {@link module:engine/view/view~View#domConverter}.\n\t */\n\tpublic readonly domConverter: DomConverter;\n\n\t/**\n\t * Reference to the {@link module:engine/view/view~View#_renderer}.\n\t */\n\tpublic readonly renderer: Renderer;\n\n\t/**\n\t * Native mutation observer config.\n\t */\n\tprivate readonly _config: MutationObserverInit;\n\n\t/**\n\t * Observed DOM elements.\n\t */\n\tprivate readonly _domElements: Set<HTMLElement>;\n\n\t/**\n\t * Native mutation observer.\n\t */\n\tprivate _mutationObserver: InstanceType<typeof global.MutationObserver>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis._config = {\n\t\t\tchildList: true,\n\t\t\tcharacterData: true,\n\t\t\tsubtree: true\n\t\t};\n\n\t\tthis.domConverter = view.domConverter;\n\t\tthis.renderer = view._renderer;\n\n\t\tthis._domElements = new Set();\n\t\tthis._mutationObserver = new window.MutationObserver( this._onMutations.bind( this ) );\n\t}\n\n\t/**\n\t * Synchronously handles mutations and empties the queue.\n\t */\n\tpublic flush(): void {\n\t\tthis._onMutations( this._mutationObserver.takeRecords() );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe( domElement: HTMLElement ): void {\n\t\tthis._domElements.add( domElement );\n\n\t\tif ( this.isEnabled ) {\n\t\t\tthis._mutationObserver.observe( domElement, this._config );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override stopObserving( domElement: HTMLElement ): void {\n\t\tthis._domElements.delete( domElement );\n\n\t\tif ( this.isEnabled ) {\n\t\t\t// Unfortunately, it is not possible to stop observing particular DOM element.\n\t\t\t// In order to stop observing one of multiple DOM elements, we need to re-connect the mutation observer.\n\t\t\tthis._mutationObserver.disconnect();\n\n\t\t\tfor ( const domElement of this._domElements ) {\n\t\t\t\tthis._mutationObserver.observe( domElement, this._config );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override enable(): void {\n\t\tsuper.enable();\n\n\t\tfor ( const domElement of this._domElements ) {\n\t\t\tthis._mutationObserver.observe( domElement, this._config );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override disable(): void {\n\t\tsuper.disable();\n\n\t\tthis._mutationObserver.disconnect();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._mutationObserver.disconnect();\n\t}\n\n\t/**\n\t * Handles mutations. Mark view elements to sync and call render.\n\t *\n\t * @param domMutations Array of native mutations.\n\t */\n\tprivate _onMutations( domMutations: Array<MutationRecord> ) {\n\t\t// As a result of this.flush() we can have an empty collection.\n\t\tif ( domMutations.length === 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst domConverter = this.domConverter;\n\n\t\t// Use map and set for deduplication.\n\t\tconst mutatedTextNodes = new Set<ViewText>();\n\t\tconst elementsWithMutatedChildren = new Set<ViewElement>();\n\n\t\t// Handle `childList` mutations first, so we will be able to check if the `characterData` mutation is in the\n\t\t// element with changed structure anyway.\n\t\tfor ( const mutation of domMutations ) {\n\t\t\tconst element = domConverter.mapDomToView( mutation.target as HTMLElement );\n\n\t\t\tif ( !element ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Do not collect mutations from UIElements and RawElements.\n\t\t\tif ( element.is( 'uiElement' ) || element.is( 'rawElement' ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( mutation.type === 'childList' && !this._isBogusBrMutation( mutation ) ) {\n\t\t\t\telementsWithMutatedChildren.add( element as ViewElement );\n\t\t\t}\n\t\t}\n\n\t\t// Handle `characterData` mutations later, when we have the full list of nodes which changed structure.\n\t\tfor ( const mutation of domMutations ) {\n\t\t\tconst element = domConverter.mapDomToView( mutation.target as HTMLElement );\n\n\t\t\t// Do not collect mutations from UIElements and RawElements.\n\t\t\tif ( element && ( element.is( 'uiElement' ) || element.is( 'rawElement' ) ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( mutation.type === 'characterData' ) {\n\t\t\t\tconst text = domConverter.findCorrespondingViewText( mutation.target as Text ) as ViewText;\n\n\t\t\t\tif ( text && !elementsWithMutatedChildren.has( text.parent as ViewElement ) ) {\n\t\t\t\t\tmutatedTextNodes.add( text );\n\t\t\t\t}\n\t\t\t\t// When we added first letter to the text node which had only inline filler, for the DOM it is mutation\n\t\t\t\t// on text, but for the view, where filler text node did not exist, new text node was created, so we\n\t\t\t\t// need to handle it as a 'children' mutation instead of 'text'.\n\t\t\t\telse if ( !text && startsWithFiller( mutation.target ) ) {\n\t\t\t\t\telementsWithMutatedChildren.add(\n\t\t\t\t\t\tdomConverter.mapDomToView( mutation.target.parentNode as HTMLElement ) as ViewElement\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Now we build the list of mutations to mark elements. We did not do it earlier to avoid marking the\n\t\t// same node multiple times in case of duplication.\n\n\t\tlet hasMutations = false;\n\n\t\tfor ( const textNode of mutatedTextNodes ) {\n\t\t\thasMutations = true;\n\t\t\tthis.renderer.markToSync( 'text', textNode );\n\t\t}\n\n\t\tfor ( const viewElement of elementsWithMutatedChildren ) {\n\t\t\tconst domElement = domConverter.mapViewToDom( viewElement )!;\n\t\t\tconst viewChildren = Array.from( viewElement.getChildren() );\n\t\t\tconst newViewChildren = Array.from( domConverter.domChildrenToView( domElement, { withChildren: false } ) );\n\n\t\t\t// It may happen that as a result of many changes (sth was inserted and then removed),\n\t\t\t// both elements haven't really changed. #1031\n\t\t\tif ( !isEqualWith( viewChildren, newViewChildren, sameNodes ) ) {\n\t\t\t\thasMutations = true;\n\t\t\t\tthis.renderer.markToSync( 'children', viewElement );\n\t\t\t}\n\t\t}\n\n\t\t// In case only non-relevant mutations were recorded it skips the event and force render (#5600).\n\t\tif ( hasMutations ) {\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[MutationObserver]%c Mutations detected',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight:bold;color:green', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// At this point we have \"dirty DOM\" (changed) and de-synched view (which has not been changed).\n\t\t\t// In order to \"reset DOM\" we render the view again.\n\t\t\tthis.view.forceRender();\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\t}\n\n\t/**\n\t * Checks if mutation was generated by the browser inserting bogus br on the end of the block element.\n\t * Such mutations are generated while pressing space or performing native spellchecker correction\n\t * on the end of the block element in Firefox browser.\n\t *\n\t * @param mutation Native mutation object.\n\t */\n\tprivate _isBogusBrMutation( mutation: MutationRecord ) {\n\t\tlet addedNode = null;\n\n\t\t// Check if mutation added only one node on the end of its parent.\n\t\tif ( mutation.nextSibling === null && mutation.removedNodes.length === 0 && mutation.addedNodes.length == 1 ) {\n\t\t\taddedNode = this.domConverter.domToView( mutation.addedNodes[ 0 ], {\n\t\t\t\twithChildren: false\n\t\t\t} );\n\t\t}\n\n\t\treturn addedNode && addedNode.is( 'element', 'br' );\n\t}\n}\n\nfunction sameNodes( child1: ViewNode, child2: ViewNode ) {\n\t// First level of comparison (array of children vs array of children) – use the Lodash's default behavior.\n\tif ( Array.isArray( child1 ) ) {\n\t\treturn;\n\t}\n\n\t// Elements.\n\tif ( child1 === child2 ) {\n\t\treturn true;\n\t}\n\t// Texts.\n\telse if ( child1.is( '$text' ) && child2.is( '$text' ) ) {\n\t\treturn child1.data === child2.data;\n\t}\n\n\t// Not matching types.\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/focusobserver\n */\n\n/* globals setTimeout, clearTimeout */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport type View from '../view';\n\n/**\n * {@link module:engine/view/document~Document#event:focus Focus}\n * and {@link module:engine/view/document~Document#event:blur blur} events observer.\n * Focus observer handle also {@link module:engine/view/rooteditableelement~RootEditableElement#isFocused isFocused} property of the\n * {@link module:engine/view/rooteditableelement~RootEditableElement root elements}.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n */\nexport default class FocusObserver extends DomEventObserver<'focus' | 'blur'> {\n\t/**\n\t * Identifier of the timeout currently used by focus listener to delay rendering execution.\n\t */\n\tprivate _renderTimeoutId!: ReturnType<typeof setTimeout>;\n\n\t/**\n\t * Set to `true` if the document is in the process of setting the focus.\n\t *\n\t * The flag is used to indicate that setting the focus is in progress.\n\t */\n\tprivate _isFocusChanging: boolean = false;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly domEventType = [ 'focus', 'blur' ] as const;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.useCapture = true;\n\t\tconst document = this.document;\n\n\t\tdocument.on<ViewDocumentFocusEvent>( 'focus', () => {\n\t\t\tthis._isFocusChanging = true;\n\n\t\t\t// Unfortunately native `selectionchange` event is fired asynchronously.\n\t\t\t// We need to wait until `SelectionObserver` handle the event and then render. Otherwise rendering will\n\t\t\t// overwrite new DOM selection with selection from the view.\n\t\t\t// See https://github.com/ckeditor/ckeditor5-engine/issues/795 for more details.\n\t\t\t// Long timeout is needed to solve #676 and https://github.com/ckeditor/ckeditor5-engine/issues/1157 issues.\n\t\t\t//\n\t\t\t// Using `view.change()` instead of `view.forceRender()` to prevent double rendering\n\t\t\t// in a situation where `selectionchange` already caused selection change.\n\t\t\tthis._renderTimeoutId = setTimeout( () => {\n\t\t\t\tthis.flush();\n\t\t\t\tview.change( () => {} );\n\t\t\t}, 50 );\n\t\t} );\n\n\t\tdocument.on<ViewDocumentBlurEvent>( 'blur', ( evt, data ) => {\n\t\t\tconst selectedEditable = document.selection.editableElement;\n\n\t\t\tif ( selectedEditable === null || selectedEditable === data.target ) {\n\t\t\t\tdocument.isFocused = false;\n\t\t\t\tthis._isFocusChanging = false;\n\n\t\t\t\t// Re-render the document to update view elements\n\t\t\t\t// (changing document.isFocused already marked view as changed since last rendering).\n\t\t\t\tview.change( () => {} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Finishes setting the document focus state.\n\t */\n\tpublic flush(): void {\n\t\tif ( this._isFocusChanging ) {\n\t\t\tthis._isFocusChanging = false;\n\t\t\tthis.document.isFocused = true;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic onDomEvent( domEvent: FocusEvent ): void {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tif ( this._renderTimeoutId ) {\n\t\t\tclearTimeout( this._renderTimeoutId );\n\t\t}\n\n\t\tsuper.destroy();\n\t}\n}\n\n/**\n * Fired when one of the editables gets focus.\n *\n * Introduced by {@link module:engine/view/observer/focusobserver~FocusObserver}.\n *\n * Note that because {@link module:engine/view/observer/focusobserver~FocusObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/focusobserver~FocusObserver\n * @eventName module:engine/view/document~Document#focus\n * @param data Event data.\n */\nexport type ViewDocumentFocusEvent = {\n\tname: 'focus';\n\targs: [ data: DomEventData<FocusEvent> ];\n};\n\n/**\n * Fired when one of the editables loses focus.\n *\n * Introduced by {@link module:engine/view/observer/focusobserver~FocusObserver}.\n *\n * Note that because {@link module:engine/view/observer/focusobserver~FocusObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/focusobserver~FocusObserver\n * @eventName module:engine/view/document~Document#blur\n * @param data Event data.\n */\nexport type ViewDocumentBlurEvent = {\n\tname: 'blur';\n\targs: [ data: DomEventData<FocusEvent> ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/selectionobserver\n */\n\n/* global setInterval, clearInterval */\n\nimport Observer from './observer';\nimport MutationObserver from './mutationobserver';\nimport { env } from '@ckeditor/ckeditor5-utils';\nimport { debounce, type DebouncedFunc } from 'lodash-es';\n\nimport type View from '../view';\nimport type DocumentSelection from '../documentselection';\nimport type DomConverter from '../domconverter';\nimport type Selection from '../selection';\nimport FocusObserver from './focusobserver';\n\ntype DomSelection = globalThis.Selection;\n\n/**\n * Selection observer class observes selection changes in the document. If a selection changes on the document this\n * observer checks if the DOM selection is different from the {@link module:engine/view/document~Document#selection view selection}.\n * The selection observer fires {@link module:engine/view/document~Document#event:selectionChange} event only if\n * a selection change was the only change in the document and the DOM selection is different from the view selection.\n *\n * This observer also manages the {@link module:engine/view/document~Document#isSelecting} property of the view document.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n */\nexport default class SelectionObserver extends Observer {\n\t/**\n\t * Instance of the mutation observer. Selection observer calls\n\t * {@link module:engine/view/observer/mutationobserver~MutationObserver#flush} to ensure that the mutations will be handled\n\t * before the {@link module:engine/view/document~Document#event:selectionChange} event is fired.\n\t */\n\tpublic readonly mutationObserver: MutationObserver;\n\n\t/**\n\t * Instance of the focus observer. Focus observer calls\n\t * {@link module:engine/view/observer/focusobserver~FocusObserver#flush} to mark the latest focus change as complete.\n\t */\n\tpublic readonly focusObserver: FocusObserver;\n\n\t/**\n\t * Reference to the view {@link module:engine/view/documentselection~DocumentSelection} object used to compare\n\t * new selection with it.\n\t */\n\tpublic readonly selection: DocumentSelection;\n\n\t/**\n\t * Reference to the {@link module:engine/view/view~View#domConverter}.\n\t */\n\tpublic readonly domConverter: DomConverter;\n\n\t/**\n\t * A set of documents which have added `selectionchange` listener to avoid adding a listener twice to the same\n\t * document.\n\t */\n\tprivate readonly _documents: WeakSet<Document>;\n\n\t/**\n\t * Fires debounced event `selectionChangeDone`. It uses `lodash#debounce` method to delay function call.\n\t */\n\tprivate readonly _fireSelectionChangeDoneDebounced: DebouncedFunc<( data: ViewDocumentSelectionEventData ) => void>;\n\n\t/**\n\t * When called, starts clearing the {@link #_loopbackCounter} counter in time intervals. When the number of selection\n\t * changes exceeds a certain limit within the interval of time, the observer will not fire `selectionChange` but warn about\n\t * possible infinite selection loop.\n\t */\n\tprivate readonly _clearInfiniteLoopInterval: ReturnType<typeof setInterval>;\n\n\t/**\n\t * Unlocks the `isSelecting` state of the view document in case the selection observer did not record this fact\n\t * correctly (for whatever reason). It is a safeguard (paranoid check), that returns document to the normal state\n\t * after a certain period of time (debounced, postponed by each selectionchange event).\n\t */\n\tprivate readonly _documentIsSelectingInactivityTimeoutDebounced: DebouncedFunc<() => void>;\n\n\t/**\n\t * Private property to check if the code does not enter infinite loop.\n\t */\n\tprivate _loopbackCounter: number;\n\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.mutationObserver = view.getObserver( MutationObserver )!;\n\t\tthis.focusObserver = view.getObserver( FocusObserver )!;\n\t\tthis.selection = this.document.selection;\n\t\tthis.domConverter = view.domConverter;\n\n\t\tthis._documents = new WeakSet();\n\n\t\tthis._fireSelectionChangeDoneDebounced = debounce( data => {\n\t\t\tthis.document.fire<ViewDocumentSelectionChangeDoneEvent>( 'selectionChangeDone', data );\n\t\t}, 200 );\n\n\t\tthis._clearInfiniteLoopInterval = setInterval( () => this._clearInfiniteLoop(), 1000 );\n\n\t\tthis._documentIsSelectingInactivityTimeoutDebounced = debounce( () => ( this.document.isSelecting = false ), 5000 );\n\n\t\tthis._loopbackCounter = 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe( domElement: HTMLElement ): void {\n\t\tconst domDocument = domElement.ownerDocument;\n\n\t\tconst startDocumentIsSelecting = () => {\n\t\t\tthis.document.isSelecting = true;\n\n\t\t\t// Let's activate the safety timeout each time the document enters the \"is selecting\" state.\n\t\t\tthis._documentIsSelectingInactivityTimeoutDebounced();\n\t\t};\n\n\t\tconst endDocumentIsSelecting = () => {\n\t\t\tif ( !this.document.isSelecting ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Make sure that model selection is up-to-date at the end of selecting process.\n\t\t\t// Sometimes `selectionchange` events could arrive after the `mouseup` event and that selection could be already outdated.\n\t\t\tthis._handleSelectionChange( null, domDocument );\n\n\t\t\tthis.document.isSelecting = false;\n\n\t\t\t// The safety timeout can be canceled when the document leaves the \"is selecting\" state.\n\t\t\tthis._documentIsSelectingInactivityTimeoutDebounced.cancel();\n\t\t};\n\n\t\t// The document has the \"is selecting\" state while the user keeps making (extending) the selection\n\t\t// (e.g. by holding the mouse button and moving the cursor). The state resets when they either released\n\t\t// the mouse button or interrupted the process by pressing or releasing any key.\n\t\tthis.listenTo( domElement, 'selectstart', startDocumentIsSelecting, { priority: 'highest' } );\n\n\t\tthis.listenTo( domElement, 'keydown', endDocumentIsSelecting, { priority: 'highest', useCapture: true } );\n\t\tthis.listenTo( domElement, 'keyup', endDocumentIsSelecting, { priority: 'highest', useCapture: true } );\n\n\t\t// Add document-wide listeners only once. This method could be called for multiple editing roots.\n\t\tif ( this._documents.has( domDocument ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// This listener is using capture mode to make sure that selection is upcasted before any other\n\t\t// handler would like to check it and update (for example table multi cell selection).\n\t\tthis.listenTo( domDocument, 'mouseup', endDocumentIsSelecting, { priority: 'highest', useCapture: true } );\n\n\t\tthis.listenTo( domDocument, 'selectionchange', ( evt, domEvent ) => {\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconst domSelection = domDocument.defaultView!.getSelection();\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.group( '%c[SelectionObserver]%c selectionchange', 'color:green', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[SelectionObserver]%c DOM Selection:', 'font-weight:bold;color:green', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t{ node: domSelection!.anchorNode, offset: domSelection!.anchorOffset },\n\t\t\t// @if CK_DEBUG_TYPING // \t\t{ node: domSelection!.focusNode, offset: domSelection!.focusOffset }\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// The Renderer is disabled while composing on non-android browsers, so we can't update the view selection\n\t\t\t// because the DOM and view tree drifted apart. Position mapping could fail because of it.\n\t\t\tif ( this.document.isComposing && !env.isAndroid ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[SelectionObserver]%c Selection change ignored (isComposing)',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight:bold;color:green', ''\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._handleSelectionChange( domEvent, domDocument );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// Defer the safety timeout when the selection changes (e.g. the user keeps extending the selection\n\t\t\t// using their mouse).\n\t\t\tthis._documentIsSelectingInactivityTimeoutDebounced();\n\t\t} );\n\n\t\tthis._documents.add( domDocument );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override stopObserving( domElement: HTMLElement ): void {\n\t\tthis.stopListening( domElement );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tclearInterval( this._clearInfiniteLoopInterval );\n\t\tthis._fireSelectionChangeDoneDebounced.cancel();\n\t\tthis._documentIsSelectingInactivityTimeoutDebounced.cancel();\n\t}\n\n\t/* istanbul ignore next -- @preserve */\n\tprivate _reportInfiniteLoop() {\n\t// @if CK_DEBUG //\t\tthrow new Error(\n\t// @if CK_DEBUG //\t\t\t'Selection change observer detected an infinite rendering loop.\\n\\n' +\n\t// @if CK_DEBUG //\t \t\t'⚠️⚠️ Report this error on https://github.com/ckeditor/ckeditor5/issues/11658.'\n\t// @if CK_DEBUG //\t\t);\n\t}\n\n\t/**\n\t * Selection change listener. {@link module:engine/view/observer/mutationobserver~MutationObserver#flush Flush} mutations, check if\n\t * a selection changes and fires {@link module:engine/view/document~Document#event:selectionChange} event on every change\n\t * and {@link module:engine/view/document~Document#event:selectionChangeDone} when a selection stop changing.\n\t *\n\t * @param domEvent DOM event.\n\t * @param domDocument DOM document.\n\t */\n\tprivate _handleSelectionChange( domEvent: unknown, domDocument: Document ) {\n\t\tif ( !this.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst domSelection = domDocument.defaultView!.getSelection()!;\n\n\t\tif ( this.checkShouldIgnoreEventFromTarget( domSelection.anchorNode! ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Ensure the mutation event will be before selection event on all browsers.\n\t\tthis.mutationObserver.flush();\n\n\t\tconst newViewSelection = this.domConverter.domSelectionToView( domSelection );\n\n\t\t// Do not convert selection change if the new view selection has no ranges in it.\n\t\t//\n\t\t// It means that the DOM selection is in some way incorrect. Ranges that were in the DOM selection could not be\n\t\t// converted to the view. This happens when the DOM selection was moved outside of the editable element.\n\t\tif ( newViewSelection.rangeCount == 0 ) {\n\t\t\tthis.view.hasDomSelection = false;\n\n\t\t\treturn;\n\t\t}\n\n\t\tthis.view.hasDomSelection = true;\n\n\t\tif ( this.selection.isEqual( newViewSelection ) && this.domConverter.isDomSelectionCorrect( domSelection ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Ensure we are not in the infinite loop (#400).\n\t\t// This counter is reset each second. 60 selection changes in 1 second is enough high number\n\t\t// to be very difficult (impossible) to achieve using just keyboard keys (during normal editor use).\n\t\tif ( ++this._loopbackCounter > 60 ) {\n\t\t\t// Selection change observer detected an infinite rendering loop.\n\t\t\t// Most probably you try to put the selection in the position which is not allowed\n\t\t\t// by the browser and browser fixes it automatically what causes `selectionchange` event on\n\t\t\t// which a loopback through a model tries to re-render the wrong selection and again.\n\t\t\tthis._reportInfiniteLoop();\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Mark the latest focus change as complete (we got new selection after the focus so the selection is in the focused element).\n\t\tthis.focusObserver.flush();\n\n\t\tif ( this.selection.isSimilar( newViewSelection ) ) {\n\t\t\t// If selection was equal and we are at this point of algorithm, it means that it was incorrect.\n\t\t\t// Just re-render it, no need to fire any events, etc.\n\t\t\tthis.view.forceRender();\n\t\t} else {\n\t\t\tconst data: ViewDocumentSelectionEventData = {\n\t\t\t\toldSelection: this.selection,\n\t\t\t\tnewSelection: newViewSelection,\n\t\t\t\tdomSelection\n\t\t\t};\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[SelectionObserver]%c Fire selection change:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight:bold;color:green', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\tnewViewSelection.getFirstRange()\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// Prepare data for new selection and fire appropriate events.\n\t\t\tthis.document.fire<ViewDocumentSelectionChangeEvent>( 'selectionChange', data );\n\n\t\t\t// Call `#_fireSelectionChangeDoneDebounced` every time when `selectionChange` event is fired.\n\t\t\t// This function is debounced what means that `selectionChangeDone` event will be fired only when\n\t\t\t// defined int the function time will elapse since the last time the function was called.\n\t\t\t// So `selectionChangeDone` will be fired when selection will stop changing.\n\t\t\tthis._fireSelectionChangeDoneDebounced( data );\n\t\t}\n\t}\n\n\t/**\n\t * Clears `SelectionObserver` internal properties connected with preventing infinite loop.\n\t */\n\tprivate _clearInfiniteLoop(): void {\n\t\tthis._loopbackCounter = 0;\n\t}\n}\n\n/**\n * The value of {@link ~ViewDocumentSelectionChangeEvent} and {@link ~ViewDocumentSelectionChangeDoneEvent} events.\n */\nexport type ViewDocumentSelectionEventData = {\n\n\t/**\n\t * Old View selection which is {@link module:engine/view/document~Document#selection}.\n\t */\n\toldSelection: DocumentSelection;\n\n\t/**\n\t * New View selection which is converted DOM selection.\n\t */\n\tnewSelection: Selection;\n\n\t/**\n\t * Native DOM selection.\n\t */\n\tdomSelection: DomSelection | null;\n};\n\n/**\n * Fired when a selection has changed. This event is fired only when the selection change was the only change that happened\n * in the document, and the old selection is different then the new selection.\n *\n * Introduced by {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n *\n * Note that because {@link module:engine/view/observer/selectionobserver~SelectionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/selectionobserver~SelectionObserver\n * @eventName module:engine/view/document~Document#selectionChange\n */\nexport type ViewDocumentSelectionChangeEvent = {\n\tname: 'selectionChange';\n\targs: [ ViewDocumentSelectionEventData ];\n};\n\n/**\n * Fired when selection stops changing.\n *\n * Introduced by {@link module:engine/view/observer/selectionobserver~SelectionObserver}.\n *\n * Note that because {@link module:engine/view/observer/selectionobserver~SelectionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/selectionobserver~SelectionObserver\n * @eventName module:engine/view/document~Document#selectionChangeDone\n */\nexport type ViewDocumentSelectionChangeDoneEvent = {\n\tname: 'selectionChangeDone';\n\targs: [ ViewDocumentSelectionEventData ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/compositionobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type View from '../view';\nimport type DomEventData from './domeventdata';\n\n/**\n * {@link module:engine/view/document~Document#event:compositionstart Compositionstart},\n * {@link module:engine/view/document~Document#event:compositionupdate compositionupdate} and\n * {@link module:engine/view/document~Document#event:compositionend compositionend} events observer.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n */\nexport default class CompositionObserver extends DomEventObserver<'compositionstart' | 'compositionupdate' | 'compositionend'> {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly domEventType = [ 'compositionstart', 'compositionupdate', 'compositionend' ] as const;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst document = this.document;\n\n\t\tdocument.on<ViewDocumentCompositionStartEvent>( 'compositionstart', () => {\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[CompositionObserver] ' +\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'┌───────────────────────────── isComposing = true ─────────────────────────────┐',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\tdocument.isComposing = true;\n\t\t}, { priority: 'low' } );\n\n\t\tdocument.on<ViewDocumentCompositionEndEvent>( 'compositionend', () => {\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[CompositionObserver] ' +\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'└───────────────────────────── isComposing = false ─────────────────────────────┘',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t\tdocument.isComposing = false;\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic onDomEvent( domEvent: CompositionEvent ): void {\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( `%c[CompositionObserver]%c ${ domEvent.type }`, 'color: green', '' );\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\tdata: domEvent.data\n\t\t} );\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n}\n\nexport interface CompositionEventData extends DomEventData<CompositionEvent> {\n\tdata: string | null;\n}\n\n/**\n * Fired when composition starts inside one of the editables.\n *\n * Introduced by {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n *\n * Note that because {@link module:engine/view/observer/compositionobserver~CompositionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/compositionobserver~CompositionObserver\n * @eventName module:engine/view/document~Document#compositionstart\n * @param data Event data.\n */\nexport type ViewDocumentCompositionStartEvent = {\n\tname: 'compositionstart';\n\targs: [ data: CompositionEventData ];\n};\n\n/**\n * Fired when composition is updated inside one of the editables.\n *\n * Introduced by {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n *\n * Note that because {@link module:engine/view/observer/compositionobserver~CompositionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/compositionobserver~CompositionObserver\n * @eventName module:engine/view/document~Document#compositionupdate\n * @param data Event data.\n */\nexport type ViewDocumentCompositionUpdateEvent = {\n\tname: 'compositionupdate';\n\targs: [ data: CompositionEventData ];\n};\n\n/**\n * Fired when composition ends inside one of the editables.\n *\n * Introduced by {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n *\n * Note that because {@link module:engine/view/observer/compositionobserver~CompositionObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @see module:engine/view/observer/compositionobserver~CompositionObserver\n * @eventName module:engine/view/document~Document#compositionend\n * @param data Event data.\n */\nexport type ViewDocumentCompositionEndEvent = {\n\tname: 'compositionend';\n\targs: [ data: CompositionEventData ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/datatransfer\n */\n\ntype DomDataTransfer = globalThis.DataTransfer;\n\n/**\n * A facade over the native [`DataTransfer`](https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer) object.\n */\nexport default class DataTransfer {\n\t/**\n\t * The array of files created from the native `DataTransfer#files` or `DataTransfer#items`.\n\t */\n\tprivate _files: Array<File> | null;\n\n\t/**\n\t * The native DataTransfer object.\n\t */\n\tprivate _native: DomDataTransfer;\n\n\t/**\n\t * @param nativeDataTransfer The native [`DataTransfer`](https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer) object.\n\t * @param options.cacheFiles Whether `files` list should be initialized in the constructor.\n\t */\n\tconstructor( nativeDataTransfer: DomDataTransfer, options: { cacheFiles?: boolean } = {} ) {\n\t\t// We should store references to the File instances in case someone would like to process this files\n\t\t// outside the event handler. Files are stored only for `drop` and `paste` events because they are not usable\n\t\t// in other events and are generating a huge delay on Firefox while dragging.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/13366.\n\t\tthis._files = options.cacheFiles ? getFiles( nativeDataTransfer ) : null;\n\n\t\tthis._native = nativeDataTransfer;\n\t}\n\n\t/**\n\t * The array of files created from the native `DataTransfer#files` or `DataTransfer#items`.\n\t */\n\tpublic get files(): Array<File> {\n\t\tif ( !this._files ) {\n\t\t\tthis._files = getFiles( this._native );\n\t\t}\n\n\t\treturn this._files;\n\t}\n\n\t/**\n\t * Returns an array of available native content types.\n\t */\n\tpublic get types(): ReadonlyArray<string> {\n\t\treturn this._native.types;\n\t}\n\n\t/**\n\t * Gets the data from the data transfer by its MIME type.\n\t *\n\t * ```ts\n\t * dataTransfer.getData( 'text/plain' );\n\t * ```\n\t *\n\t * @param type The MIME type. E.g. `text/html` or `text/plain`.\n\t */\n\tpublic getData( type: string ): string {\n\t\treturn this._native.getData( type );\n\t}\n\n\t/**\n\t * Sets the data in the data transfer.\n\t *\n\t * @param type The MIME type. E.g. `text/html` or `text/plain`.\n\t */\n\tpublic setData( type: string, data: string ): void {\n\t\tthis._native.setData( type, data );\n\t}\n\n\t/**\n\t * The effect that is allowed for a drag operation.\n\t */\n\tpublic set effectAllowed( value: EffectAllowed ) {\n\t\tthis._native.effectAllowed = value;\n\t}\n\n\tpublic get effectAllowed(): EffectAllowed {\n\t\treturn this._native.effectAllowed;\n\t}\n\n\t/**\n\t * The actual drop effect.\n\t */\n\tpublic set dropEffect( value: DropEffect ) {\n\t\tthis._native.dropEffect = value;\n\t}\n\n\tpublic get dropEffect(): DropEffect {\n\t\treturn this._native.dropEffect;\n\t}\n\n\t/**\n\t * Whether the dragging operation was canceled.\n\t */\n\tpublic get isCanceled(): boolean {\n\t\treturn this._native.dropEffect == 'none' || !!( this._native as any ).mozUserCancelled;\n\t}\n}\n\n/**\n * The effect that is allowed for a drag operation.\n */\nexport type EffectAllowed = DomDataTransfer[ 'effectAllowed' ];\n\n/**\n * The actual drop effect.\n */\nexport type DropEffect = DomDataTransfer[ 'dropEffect' ];\n\nfunction getFiles( nativeDataTransfer: DomDataTransfer ): Array<File> {\n\t// DataTransfer.files and items are array-like and might not have an iterable interface.\n\tconst files = Array.from( nativeDataTransfer.files || [] );\n\tconst items = Array.from( nativeDataTransfer.items || [] );\n\n\tif ( files.length ) {\n\t\treturn files;\n\t}\n\n\t// Chrome has empty DataTransfer.files, but allows getting files through the items interface.\n\treturn items\n\t\t.filter( item => item.kind === 'file' )\n\t\t.map( item => item.getAsFile()! );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/inputobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport type ViewRange from '../range';\nimport DataTransfer from '../datatransfer';\nimport { env } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Observer for events connected with data input.\n *\n * **Note**: This observer is attached by {@link module:engine/view/view~View} and available by default in all\n * editor instances.\n */\nexport default class InputObserver extends DomEventObserver<'beforeinput'> {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly domEventType = 'beforeinput' as const;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic onDomEvent( domEvent: InputEvent ): void {\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.group( `%c[InputObserver]%c ${ domEvent.type }: ${ domEvent.inputType }`,\n\t\t// @if CK_DEBUG_TYPING // \t\t'color: green', 'color: default'\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tconst domTargetRanges = domEvent.getTargetRanges();\n\t\tconst view = this.view;\n\t\tconst viewDocument = view.document;\n\n\t\tlet dataTransfer: DataTransfer | null = null;\n\t\tlet data: string | null = null;\n\t\tlet targetRanges: Array<ViewRange> = [];\n\n\t\tif ( domEvent.dataTransfer ) {\n\t\t\tdataTransfer = new DataTransfer( domEvent.dataTransfer );\n\t\t}\n\n\t\tif ( domEvent.data !== null ) {\n\t\t\tdata = domEvent.data;\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( `%c[InputObserver]%c event data: %c${ JSON.stringify( data ) }`,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', 'color: blue;'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t} else if ( dataTransfer ) {\n\t\t\tdata = dataTransfer.getData( 'text/plain' );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( `%c[InputObserver]%c event data transfer: %c${ JSON.stringify( data ) }`,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', 'color: blue;'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\n\t\t// If the editor selection is fake (an object is selected), the DOM range does not make sense because it is anchored\n\t\t// in the fake selection container.\n\t\tif ( viewDocument.selection.isFake ) {\n\t\t\t// Future-proof: in case of multi-range fake selections being possible.\n\t\t\ttargetRanges = Array.from( viewDocument.selection.getRanges() );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[InputObserver]%c using fake selection:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', targetRanges,\n\t\t\t// @if CK_DEBUG_TYPING // \t\tviewDocument.selection.isFake ? 'fake view selection' : 'fake DOM parent'\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t} else if ( domTargetRanges.length ) {\n\t\t\ttargetRanges = domTargetRanges.map( domRange => {\n\t\t\t\treturn view.domConverter.domRangeToView( domRange )!;\n\t\t\t} );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[InputObserver]%c using target ranges:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', targetRanges\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\t\t// For Android devices we use a fallback to the current DOM selection, Android modifies it according\n\t\t// to the expected target ranges of input event.\n\t\telse if ( env.isAndroid ) {\n\t\t\tconst domSelection = ( domEvent.target as HTMLElement ).ownerDocument.defaultView!.getSelection()!;\n\n\t\t\ttargetRanges = Array.from( view.domConverter.domSelectionToView( domSelection ).getRanges() );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[InputObserver]%c using selection ranges:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'color: green;font-weight: bold', 'font-weight:bold', targetRanges\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\t\t}\n\n\t\t// Android sometimes fires insertCompositionText with a new-line character at the end of the data\n\t\t// instead of firing insertParagraph beforeInput event.\n\t\t// Fire the correct type of beforeInput event and ignore the replaced fragment of text because\n\t\t// it wants to replace \"test\" with \"test\\n\".\n\t\t// https://github.com/ckeditor/ckeditor5/issues/12368.\n\t\tif ( env.isAndroid && domEvent.inputType == 'insertCompositionText' && data && data.endsWith( '\\n' ) ) {\n\t\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\t\tinputType: 'insertParagraph',\n\t\t\t\ttargetRanges: [ view.createRange( targetRanges[ 0 ].end ) ]\n\t\t\t} );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Normalize the insertText data that includes new-line characters.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/2045.\n\t\tif ( domEvent.inputType == 'insertText' && data && data.includes( '\\n' ) ) {\n\t\t\t// There might be a single new-line or double for new paragraph, but we translate\n\t\t\t// it to paragraphs as it is our default action for enter handling.\n\t\t\tconst parts = data.split( /\\n{1,2}/g );\n\n\t\t\tlet partTargetRanges = targetRanges;\n\n\t\t\tfor ( let i = 0; i < parts.length; i++ ) {\n\t\t\t\tconst dataPart = parts[ i ];\n\n\t\t\t\tif ( dataPart != '' ) {\n\t\t\t\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\t\t\t\tdata: dataPart,\n\t\t\t\t\t\tdataTransfer,\n\t\t\t\t\t\ttargetRanges: partTargetRanges,\n\t\t\t\t\t\tinputType: domEvent.inputType,\n\t\t\t\t\t\tisComposing: domEvent.isComposing\n\t\t\t\t\t} );\n\n\t\t\t\t\t// Use the result view selection so following events will be added one after another.\n\t\t\t\t\tpartTargetRanges = [ viewDocument.selection.getFirstRange()! ];\n\t\t\t\t}\n\n\t\t\t\tif ( i + 1 < parts.length ) {\n\t\t\t\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\t\t\t\tinputType: 'insertParagraph',\n\t\t\t\t\t\ttargetRanges: partTargetRanges\n\t\t\t\t\t} );\n\n\t\t\t\t\t// Use the result view selection so following events will be added one after another.\n\t\t\t\t\tpartTargetRanges = [ viewDocument.selection.getFirstRange()! ];\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Fire the normalized beforeInput event.\n\t\tthis.fire( domEvent.type, domEvent, {\n\t\t\tdata,\n\t\t\tdataTransfer,\n\t\t\ttargetRanges,\n\t\t\tinputType: domEvent.inputType,\n\t\t\tisComposing: domEvent.isComposing\n\t\t} );\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.groupEnd();\n\t\t// @if CK_DEBUG_TYPING // }\n\t}\n}\n\n/**\n * Fired before the web browser inputs, deletes, or formats some data.\n *\n * This event is introduced by {@link module:engine/view/observer/inputobserver~InputObserver} and available\n * by default in all editor instances (attached by {@link module:engine/view/view~View}).\n *\n * @see module:engine/view/observer/inputobserver~InputObserver\n * @eventName module:engine/view/document~Document#beforeinput\n * @param data Event data containing detailed information about the event.\n */\nexport type ViewDocumentInputEvent = {\n\tname: 'beforeinput';\n\targs: [ data: InputEventData ];\n};\n\n/**\n * The value of the {@link ~ViewDocumentInputEvent} event.\n */\nexport interface InputEventData extends DomEventData<InputEvent> {\n\n\t/**\n\t * The type of the input event (e.g. \"insertText\" or \"deleteWordBackward\"). Corresponds to native `InputEvent#inputType`.\n\t */\n\treadonly inputType: string;\n\n\t/**\n\t * A unified text data passed along with the input event. Depending on:\n\t *\n\t * * the web browser and input events implementation (for instance [Level 1](https://www.w3.org/TR/input-events-1/) or\n\t * [Level 2](https://www.w3.org/TR/input-events-2/)),\n\t * * {@link module:engine/view/observer/inputobserver~InputEventData#inputType input type}\n\t *\n\t * text data is sometimes passed in the `data` and sometimes in the `dataTransfer` property.\n\t *\n\t * * If `InputEvent#data` was set, this property reflects its value.\n\t * * If `InputEvent#data` is unavailable, this property contains the `'text/plain'` data from\n\t * {@link module:engine/view/observer/inputobserver~InputEventData#dataTransfer}.\n\t * * If the event ({@link module:engine/view/observer/inputobserver~InputEventData#inputType input type})\n\t * provides no data whatsoever, this property is `null`.\n\t */\n\treadonly data: string | null;\n\n\t/**\n\t * The data transfer instance of the input event. Corresponds to native `InputEvent#dataTransfer`.\n\t *\n\t * The value is `null` when no `dataTransfer` was passed along with the input event.\n\t */\n\treadonly dataTransfer: DataTransfer;\n\n\t/**\n\t * A flag indicating that the `beforeinput` event was fired during composition.\n\t *\n\t * Corresponds to the\n\t * {@link module:engine/view/document~Document#event:compositionstart},\n\t * {@link module:engine/view/document~Document#event:compositionupdate},\n\t * and {@link module:engine/view/document~Document#event:compositionend } trio.\n\t */\n\treadonly isComposing: boolean;\n\n\t/**\n\t * Editing {@link module:engine/view/range~Range view ranges} corresponding to DOM ranges provided by the web browser\n\t * (as returned by `InputEvent#getTargetRanges()`).\n\t */\n\treadonly targetRanges: Array<ViewRange>;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/arrowkeysobserver\n */\n\nimport Observer from './observer';\nimport BubblingEventInfo from './bubblingeventinfo';\nimport type View from '../view';\nimport type { KeyEventData, ViewDocumentKeyDownEvent } from './keyobserver';\nimport type { BubblingEvent } from './bubblingemittermixin';\n\nimport { isArrowKeyCode } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Arrow keys observer introduces the {@link module:engine/view/document~Document#event:arrowKey `Document#arrowKey`} event.\n *\n * Note that this observer is attached by the {@link module:engine/view/view~View} and is available by default.\n */\nexport default class ArrowKeysObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tthis.document.on<ViewDocumentKeyDownEvent>( 'keydown', ( event, data ) => {\n\t\t\tif ( this.isEnabled && isArrowKeyCode( data.keyCode ) ) {\n\t\t\t\tconst eventInfo = new BubblingEventInfo( this.document, 'arrowKey', this.document.selection.getFirstRange()! );\n\n\t\t\t\tthis.document.fire<ViewDocumentArrowKeyEvent>( eventInfo, data );\n\n\t\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\t\tevent.stop();\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override stopObserving(): void {}\n}\n\n/**\n * Event fired when the user presses an arrow keys.\n *\n * Introduced by {@link module:engine/view/observer/arrowkeysobserver~ArrowKeysObserver}.\n *\n * Note that because {@link module:engine/view/observer/arrowkeysobserver~ArrowKeysObserver} is attached by the\n * {@link module:engine/view/view~View} this event is available by default.\n *\n * @eventName module:engine/view/document~Document#arrowKey\n * @param data\n */\n\nexport type ViewDocumentArrowKeyEvent = BubblingEvent<{\n\tname: 'arrowKey';\n\targs: [ data: KeyEventData ];\n}>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/tabobserver\n */\n\nimport type View from '../view';\nimport Observer from './observer';\nimport BubblingEventInfo from './bubblingeventinfo';\nimport type { KeyEventData, ViewDocumentKeyDownEvent } from './keyobserver';\nimport type { BubblingEvent } from './bubblingemittermixin';\n\nimport { keyCodes } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Tab observer introduces the {@link module:engine/view/document~Document#event:tab `Document#tab`} event.\n *\n * Note that because {@link module:engine/view/observer/tabobserver~TabObserver} is attached by the\n * {@link module:engine/view/view~View}, this event is available by default.\n */\nexport default class TabObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst doc = this.document;\n\n\t\tdoc.on<ViewDocumentKeyDownEvent>( 'keydown', ( evt, data ) => {\n\t\t\tif (\n\t\t\t\t!this.isEnabled ||\n\t\t\t\tdata.keyCode != keyCodes.tab ||\n\t\t\t\tdata.ctrlKey\n\t\t\t) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst event = new BubblingEventInfo( doc, 'tab', doc.selection.getFirstRange()! );\n\n\t\t\tdoc.fire<ViewDocumentTabEvent>( event, data );\n\n\t\t\tif ( event.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override observe(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override stopObserving(): void {}\n}\n\n/**\n * Event fired when the user presses a tab key.\n *\n * Introduced by {@link module:engine/view/observer/tabobserver~TabObserver}.\n *\n * Note that because {@link module:engine/view/observer/tabobserver~TabObserver} is attached by the\n * {@link module:engine/view/view~View}, this event is available by default.\n *\n * @eventName module:engine/view/document~Document#tab\n * @param data\n */\nexport type ViewDocumentTabEvent = BubblingEvent<{\n\tname: 'tab';\n\targs: [ data: KeyEventData ];\n}>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/view\n */\n\nimport Document, { type ViewDocumentLayoutChangedEvent } from './document';\nimport DowncastWriter from './downcastwriter';\nimport Renderer from './renderer';\nimport DomConverter from './domconverter';\nimport Position, { type PositionOffset } from './position';\nimport Range from './range';\nimport Selection, {\n\ttype PlaceOrOffset,\n\ttype Selectable,\n\ttype SelectionOptions\n} from './selection';\n\nimport type { default as Observer, ObserverConstructor } from './observer/observer';\nimport type { ViewDocumentSelectionChangeEvent } from './documentselection';\nimport type { StylesProcessor } from './stylesmap';\nimport type Element from './element';\nimport type Node from './node';\nimport type Item from './item';\n\nimport KeyObserver from './observer/keyobserver';\nimport FakeSelectionObserver from './observer/fakeselectionobserver';\nimport MutationObserver from './observer/mutationobserver';\nimport SelectionObserver from './observer/selectionobserver';\nimport FocusObserver from './observer/focusobserver';\nimport CompositionObserver from './observer/compositionobserver';\nimport InputObserver from './observer/inputobserver';\nimport ArrowKeysObserver from './observer/arrowkeysobserver';\nimport TabObserver from './observer/tabobserver';\n\nimport {\n\tCKEditorError,\n\tObservableMixin,\n\tscrollViewportToShowTarget,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\nimport { injectUiElementHandling } from './uielement';\nimport { injectQuirksHandling } from './filler';\n\ntype IfTrue<T> = T extends true ? true : never;\n\n/**\n * Editor's view controller class. Its main responsibility is DOM - View management for editing purposes, to provide\n * abstraction over the DOM structure and events and hide all browsers quirks.\n *\n * View controller renders view document to DOM whenever view structure changes. To determine when view can be rendered,\n * all changes need to be done using the {@link module:engine/view/view~View#change} method, using\n * {@link module:engine/view/downcastwriter~DowncastWriter}:\n *\n * ```ts\n * view.change( writer => {\n * \twriter.insert( position, writer.createText( 'foo' ) );\n * } );\n * ```\n *\n * View controller also register {@link module:engine/view/observer/observer~Observer observers} which observes changes\n * on DOM and fire events on the {@link module:engine/view/document~Document Document}.\n * Note that the following observers are added by the class constructor and are always available:\n *\n * * {@link module:engine/view/observer/selectionobserver~SelectionObserver},\n * * {@link module:engine/view/observer/focusobserver~FocusObserver},\n * * {@link module:engine/view/observer/keyobserver~KeyObserver},\n * * {@link module:engine/view/observer/fakeselectionobserver~FakeSelectionObserver}.\n * * {@link module:engine/view/observer/compositionobserver~CompositionObserver}.\n * * {@link module:engine/view/observer/inputobserver~InputObserver}.\n * * {@link module:engine/view/observer/arrowkeysobserver~ArrowKeysObserver}.\n * * {@link module:engine/view/observer/tabobserver~TabObserver}.\n *\n * This class also {@link module:engine/view/view~View#attachDomRoot binds the DOM and the view elements}.\n *\n * If you do not need full a DOM - view management, and only want to transform a tree of view elements to a tree of DOM\n * elements you do not need this controller. You can use the {@link module:engine/view/domconverter~DomConverter DomConverter} instead.\n */\nexport default class View extends ObservableMixin() {\n\t/**\n\t * Instance of the {@link module:engine/view/document~Document} associated with this view controller.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * Instance of the {@link module:engine/view/domconverter~DomConverter domConverter} used by\n\t * {@link module:engine/view/view~View#_renderer renderer}\n\t * and {@link module:engine/view/observer/observer~Observer observers}.\n\t */\n\tpublic readonly domConverter: DomConverter;\n\n\t/**\n\t * Roots of the DOM tree. Map on the `HTMLElement`s with roots names as keys.\n\t */\n\tpublic readonly domRoots: Map<string, HTMLElement> = new Map();\n\n\t/**\n\t * Used to prevent calling {@link #forceRender} and {@link #change} during rendering view to the DOM.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public isRenderingInProgress: boolean;\n\n\t/**\n\t * Informs whether the DOM selection is inside any of the DOM roots managed by the view.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public hasDomSelection: boolean;\n\n\t/**\n\t * Instance of the {@link module:engine/view/renderer~Renderer renderer}.\n\t *\n\t * @internal\n\t */\n\tpublic readonly _renderer: Renderer;\n\n\t/**\n\t * A DOM root attributes cache. It saves the initial values of DOM root attributes before the DOM element\n\t * is {@link module:engine/view/view~View#attachDomRoot attached} to the view so later on, when\n\t * the view is destroyed ({@link module:engine/view/view~View#detachDomRoot}), they can be easily restored.\n\t * This way, the DOM element can go back to the (clean) state as if the editing view never used it.\n\t */\n\tprivate readonly _initialDomRootAttributes: WeakMap<HTMLElement, Record<string, string>> = new WeakMap();\n\n\t/**\n\t * Map of registered {@link module:engine/view/observer/observer~Observer observers}.\n\t */\n\tprivate readonly _observers: Map<ObserverConstructor, Observer> = new Map();\n\n\t/**\n\t * DowncastWriter instance used in {@link #change change method} callbacks.\n\t */\n\tprivate readonly _writer: DowncastWriter;\n\n\t/**\n\t * Is set to `true` when {@link #change view changes} are currently in progress.\n\t */\n\tprivate _ongoingChange: boolean = false;\n\n\t/**\n\t * Used to prevent calling {@link #forceRender} and {@link #change} during rendering view to the DOM.\n\t */\n\tprivate _postFixersInProgress: boolean = false;\n\n\t/**\n\t * Internal flag to temporary disable rendering. See the usage in the {@link #_disableRendering}.\n\t */\n\tprivate _renderingDisabled: boolean = false;\n\n\t/**\n\t * Internal flag that disables rendering when there are no changes since the last rendering.\n\t * It stores information about changed selection and changed elements from attached document roots.\n\t */\n\tprivate _hasChangedSinceTheLastRendering: boolean = false;\n\n\t/**\n\t * @param stylesProcessor The styles processor instance.\n\t */\n\tconstructor( stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\tthis.document = new Document( stylesProcessor );\n\t\tthis.domConverter = new DomConverter( this.document );\n\n\t\tthis.set( 'isRenderingInProgress', false );\n\t\tthis.set( 'hasDomSelection', false );\n\n\t\tthis._renderer = new Renderer( this.domConverter, this.document.selection );\n\t\tthis._renderer.bind( 'isFocused', 'isSelecting', 'isComposing' )\n\t\t\t.to( this.document, 'isFocused', 'isSelecting', 'isComposing' );\n\n\t\tthis._writer = new DowncastWriter( this.document );\n\n\t\t// Add default observers.\n\t\tthis.addObserver( MutationObserver );\n\t\tthis.addObserver( FocusObserver );\n\t\tthis.addObserver( SelectionObserver );\n\t\tthis.addObserver( KeyObserver );\n\t\tthis.addObserver( FakeSelectionObserver );\n\t\tthis.addObserver( CompositionObserver );\n\t\tthis.addObserver( ArrowKeysObserver );\n\t\tthis.addObserver( InputObserver );\n\t\tthis.addObserver( TabObserver );\n\n\t\t// Inject quirks handlers.\n\t\tinjectQuirksHandling( this );\n\t\tinjectUiElementHandling( this );\n\n\t\t// Use 'normal' priority so that rendering is performed as first when using that priority.\n\t\tthis.on<ViewRenderEvent>( 'render', () => {\n\t\t\tthis._render();\n\n\t\t\t// Informs that layout has changed after render.\n\t\t\tthis.document.fire<ViewDocumentLayoutChangedEvent>( 'layoutChanged' );\n\n\t\t\t// Reset the `_hasChangedSinceTheLastRendering` flag after rendering.\n\t\t\tthis._hasChangedSinceTheLastRendering = false;\n\t\t} );\n\n\t\t// Listen to the document selection changes directly.\n\t\tthis.listenTo<ViewDocumentSelectionChangeEvent>( this.document.selection, 'change', () => {\n\t\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\t} );\n\n\t\t// Trigger re-render if only the focus changed.\n\t\tthis.listenTo<ObservableChangeEvent>( this.document, 'change:isFocused', () => {\n\t\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches a DOM root element to the view element and enable all observers on that element.\n\t * Also {@link module:engine/view/renderer~Renderer#markToSync mark element} to be synchronized\n\t * with the view what means that all child nodes will be removed and replaced with content of the view root.\n\t *\n\t * This method also will change view element name as the same as tag name of given dom root.\n\t * Name is always transformed to lower case.\n\t *\n\t * **Note:** Use {@link #detachDomRoot `detachDomRoot()`} to revert this action.\n\t *\n\t * @param domRoot DOM root element.\n\t * @param name Name of the root.\n\t */\n\tpublic attachDomRoot( domRoot: HTMLElement, name: string = 'main' ): void {\n\t\tconst viewRoot = this.document.getRoot( name )!;\n\n\t\t// Set view root name the same as DOM root tag name.\n\t\tviewRoot._name = domRoot.tagName.toLowerCase();\n\n\t\tconst initialDomRootAttributes: Record<string, string> = {};\n\n\t\t// 1. Copy and cache the attributes to remember the state of the element before attaching.\n\t\t//    The cached attributes will be restored in detachDomRoot() so the element goes to the\n\t\t//    clean state as if the editing view never used it.\n\t\t// 2. Apply the attributes using the view writer, so they all go under the control of the engine.\n\t\t//    The editing view takes over the attribute management completely because various\n\t\t//    features (e.g. addPlaceholder()) require dynamic changes of those attributes and they\n\t\t//    cannot be managed by the engine and the UI library at the same time.\n\t\tfor ( const { name, value } of Array.from( domRoot.attributes ) ) {\n\t\t\tinitialDomRootAttributes[ name ] = value;\n\n\t\t\t// Do not use writer.setAttribute() for the class attribute. The EditableUIView class\n\t\t\t// and its descendants could have already set some using the writer.addClass() on the view\n\t\t\t// document root. They haven't been rendered yet so they are not present in the DOM root.\n\t\t\t// Using writer.setAttribute( 'class', ... ) would override them completely.\n\t\t\tif ( name === 'class' ) {\n\t\t\t\tthis._writer.addClass( value.split( ' ' ), viewRoot );\n\t\t\t} else {\n\t\t\t\tthis._writer.setAttribute( name, value, viewRoot );\n\t\t\t}\n\t\t}\n\n\t\tthis._initialDomRootAttributes.set( domRoot, initialDomRootAttributes );\n\n\t\tconst updateContenteditableAttribute = () => {\n\t\t\tthis._writer.setAttribute( 'contenteditable', ( !viewRoot.isReadOnly ).toString(), viewRoot );\n\n\t\t\tif ( viewRoot.isReadOnly ) {\n\t\t\t\tthis._writer.addClass( 'ck-read-only', viewRoot );\n\t\t\t} else {\n\t\t\t\tthis._writer.removeClass( 'ck-read-only', viewRoot );\n\t\t\t}\n\t\t};\n\n\t\t// Set initial value.\n\t\tupdateContenteditableAttribute();\n\n\t\tthis.domRoots.set( name, domRoot );\n\t\tthis.domConverter.bindElements( domRoot, viewRoot );\n\t\tthis._renderer.markToSync( 'children', viewRoot );\n\t\tthis._renderer.markToSync( 'attributes', viewRoot );\n\t\tthis._renderer.domDocuments.add( domRoot.ownerDocument );\n\n\t\tviewRoot.on( 'change:children', ( evt, node ) => this._renderer.markToSync( 'children', node ) );\n\t\tviewRoot.on( 'change:attributes', ( evt, node ) => this._renderer.markToSync( 'attributes', node ) );\n\t\tviewRoot.on( 'change:text', ( evt, node ) => this._renderer.markToSync( 'text', node ) );\n\t\tviewRoot.on( 'change:isReadOnly', () => this.change( updateContenteditableAttribute ) );\n\n\t\tviewRoot.on( 'change', () => {\n\t\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\t} );\n\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.observe( domRoot, name );\n\t\t}\n\t}\n\n\t/**\n\t * Detaches a DOM root element from the view element and restores its attributes to the state before\n\t * {@link #attachDomRoot `attachDomRoot()`}.\n\t *\n\t * @param name Name of the root to detach.\n\t */\n\tpublic detachDomRoot( name: string ): void {\n\t\tconst domRoot = this.domRoots.get( name )!;\n\n\t\t// Remove all root attributes so the DOM element is \"bare\".\n\t\tArray.from( domRoot.attributes ).forEach( ( { name } ) => domRoot.removeAttribute( name ) );\n\n\t\tconst initialDomRootAttributes = this._initialDomRootAttributes.get( domRoot );\n\n\t\t// Revert all view root attributes back to the state before attachDomRoot was called.\n\t\tfor ( const attribute in initialDomRootAttributes ) {\n\t\t\tdomRoot.setAttribute( attribute, initialDomRootAttributes[ attribute ] );\n\t\t}\n\n\t\tthis.domRoots.delete( name );\n\t\tthis.domConverter.unbindDomElement( domRoot );\n\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.stopObserving( domRoot );\n\t\t}\n\t}\n\n\t/**\n\t * Gets DOM root element.\n\t *\n\t * @param name  Name of the root.\n\t * @returns DOM root element instance.\n\t */\n\tpublic getDomRoot( name: string = 'main' ): HTMLElement | undefined {\n\t\treturn this.domRoots.get( name );\n\t}\n\n\t/**\n\t * Creates observer of the given type if not yet created, {@link module:engine/view/observer/observer~Observer#enable enables} it\n\t * and {@link module:engine/view/observer/observer~Observer#observe attaches} to all existing and future\n\t * {@link #domRoots DOM roots}.\n\t *\n\t * Note: Observers are recognized by their constructor (classes). A single observer will be instantiated and used only\n\t * when registered for the first time. This means that features and other components can register a single observer\n\t * multiple times without caring whether it has been already added or not.\n\t *\n\t * @param ObserverConstructor The constructor of an observer to add.\n\t * Should create an instance inheriting from {@link module:engine/view/observer/observer~Observer}.\n\t * @returns Added observer instance.\n\t */\n\tpublic addObserver( ObserverConstructor: ObserverConstructor ): Observer {\n\t\tlet observer = this._observers.get( ObserverConstructor );\n\n\t\tif ( observer ) {\n\t\t\treturn observer;\n\t\t}\n\n\t\tobserver = new ObserverConstructor( this );\n\n\t\tthis._observers.set( ObserverConstructor, observer );\n\n\t\tfor ( const [ name, domElement ] of this.domRoots ) {\n\t\t\tobserver.observe( domElement, name );\n\t\t}\n\n\t\tobserver.enable();\n\n\t\treturn observer;\n\t}\n\n\t/**\n\t * Returns observer of the given type or `undefined` if such observer has not been added yet.\n\t *\n\t * @param ObserverConstructor The constructor of an observer to get.\n\t * @returns Observer instance or undefined.\n\t */\n\tpublic getObserver<T extends ObserverConstructor>( ObserverConstructor: T ): InstanceType<T> | undefined {\n\t\treturn this._observers.get( ObserverConstructor ) as ( InstanceType<T> | undefined );\n\t}\n\n\t/**\n\t * Disables all added observers.\n\t */\n\tpublic disableObservers(): void {\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.disable();\n\t\t}\n\t}\n\n\t/**\n\t * Enables all added observers.\n\t */\n\tpublic enableObservers(): void {\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.enable();\n\t\t}\n\t}\n\n\t/**\n\t * Scrolls the page viewport and {@link #domRoots} with their ancestors to reveal the\n\t * caret, **if not already visible to the user**.\n\t *\n\t * @param options Additional configuration of the scrolling behavior.\n\t * @param options.viewportOffset A distance between the DOM selection and the viewport boundary to be maintained\n\t * while scrolling to the selection (default is 20px). Setting this value to `0` will reveal the selection precisely at\n\t * the viewport boundary.\n\t * @param options.ancestorOffset A distance between the DOM selection and scrollable DOM root ancestor(s) to be maintained\n\t * while scrolling to the selection (default is 20px). Setting this value to `0` will reveal the selection precisely at\n\t * the scrollable ancestor(s) boundary.\n\t * @param options.alignToTop When set `true`, the DOM selection will be aligned to the top of the viewport if not already visible\n\t * (see `forceScroll` to learn more).\n\t * @param options.forceScroll When set `true`, the DOM selection will be aligned to the top of the viewport and scrollable ancestors\n\t * whether it is already visible or not. This option will only work when `alignToTop` is `true`.\n\t */\n\tpublic scrollToTheSelection<T extends boolean, U extends IfTrue<T>>( {\n\t\talignToTop,\n\t\tforceScroll,\n\t\tviewportOffset = 20,\n\t\tancestorOffset = 20\n\t}: {\n\t\treadonly viewportOffset?: number;\n\t\treadonly ancestorOffset?: number;\n\t\treadonly alignToTop?: T;\n\t\treadonly forceScroll?: U;\n\t} = {} ): void {\n\t\tconst range = this.document.selection.getFirstRange();\n\n\t\tif ( range ) {\n\t\t\tscrollViewportToShowTarget( {\n\t\t\t\ttarget: this.domConverter.viewRangeToDom( range ),\n\t\t\t\tviewportOffset,\n\t\t\t\tancestorOffset,\n\t\t\t\talignToTop,\n\t\t\t\tforceScroll\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * It will focus DOM element representing {@link module:engine/view/editableelement~EditableElement EditableElement}\n\t * that is currently having selection inside.\n\t */\n\tpublic focus(): void {\n\t\tif ( !this.document.isFocused ) {\n\t\t\tconst editable = this.document.selection.editableElement;\n\n\t\t\tif ( editable ) {\n\t\t\t\tthis.domConverter.focus( editable );\n\t\t\t\tthis.forceRender();\n\t\t\t} else {\n\t\t\t\t// Before focusing view document, selection should be placed inside one of the view's editables.\n\t\t\t\t// Normally its selection will be converted from model document (which have default selection), but\n\t\t\t\t// when using view document on its own, we need to manually place selection before focusing it.\n\t\t\t\t//\n\t\t\t\t// @if CK_DEBUG // console.warn( 'There is no selection in any editable to focus.' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * The `change()` method is the primary way of changing the view. You should use it to modify any node in the view tree.\n\t * It makes sure that after all changes are made the view is rendered to the DOM (assuming that the view will be changed\n\t * inside the callback). It prevents situations when the DOM is updated when the view state is not yet correct. It allows\n\t * to nest calls one inside another and still performs a single rendering after all those changes are made.\n\t * It also returns the return value of its callback.\n\t *\n\t * ```ts\n\t * const text = view.change( writer => {\n\t * \tconst newText = writer.createText( 'foo' );\n\t * \twriter.insert( position1, newText );\n\t *\n\t * \tview.change( writer => {\n\t * \t\twriter.insert( position2, writer.createText( 'bar' ) );\n\t * \t} );\n\t *\n\t * \twriter.remove( range );\n\t *\n\t * \treturn newText;\n\t * } );\n\t * ```\n\t *\n\t * When the outermost change block is done and rendering to the DOM is over the\n\t * {@link module:engine/view/view~View#event:render `View#render`} event is fired.\n\t *\n\t * This method throws a `applying-view-changes-on-rendering` error when\n\t * the change block is used after rendering to the DOM has started.\n\t *\n\t * @param callback Callback function which may modify the view.\n\t * @returns Value returned by the callback.\n\t */\n\tpublic change<TReturn>( callback: ( writer: DowncastWriter ) => TReturn ): TReturn {\n\t\tif ( this.isRenderingInProgress || this._postFixersInProgress ) {\n\t\t\t/**\n\t\t\t * Thrown when there is an attempt to make changes to the view tree when it is in incorrect state. This may\n\t\t\t * cause some unexpected behaviour and inconsistency between the DOM and the view.\n\t\t\t * This may be caused by:\n\t\t\t *\n\t\t\t * * calling {@link module:engine/view/view~View#change} or {@link module:engine/view/view~View#forceRender} during rendering\n\t\t\t * process,\n\t\t\t * * calling {@link module:engine/view/view~View#change} or {@link module:engine/view/view~View#forceRender} inside of\n\t\t\t *   {@link module:engine/view/document~Document#registerPostFixer post-fixer function}.\n\t\t\t *\n\t\t\t * @error cannot-change-view-tree\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'cannot-change-view-tree',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\ttry {\n\t\t\t// Recursive call to view.change() method - execute listener immediately.\n\t\t\tif ( this._ongoingChange ) {\n\t\t\t\treturn callback( this._writer );\n\t\t\t}\n\n\t\t\t// This lock will assure that all recursive calls to view.change() will end up in same block - one \"render\"\n\t\t\t// event for all nested calls.\n\t\t\tthis._ongoingChange = true;\n\t\t\tconst callbackResult = callback( this._writer );\n\t\t\tthis._ongoingChange = false;\n\n\t\t\t// This lock is used by editing controller to render changes from outer most model.change() once. As plugins might call\n\t\t\t// view.change() inside model.change() block - this will ensures that postfixers and rendering are called once after all\n\t\t\t// changes. Also, we don't need to render anything if there're no changes since last rendering.\n\t\t\tif ( !this._renderingDisabled && this._hasChangedSinceTheLastRendering ) {\n\t\t\t\tthis._postFixersInProgress = true;\n\t\t\t\tthis.document._callPostFixers( this._writer );\n\t\t\t\tthis._postFixersInProgress = false;\n\n\t\t\t\tthis.fire<ViewRenderEvent>( 'render' );\n\t\t\t}\n\n\t\t\treturn callbackResult;\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next -- @preserve */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\t/**\n\t * Forces rendering {@link module:engine/view/document~Document view document} to DOM. If any view changes are\n\t * currently in progress, rendering will start after all {@link #change change blocks} are processed.\n\t *\n\t * Note that this method is dedicated for special cases. All view changes should be wrapped in the {@link #change}\n\t * block and the view will automatically check whether it needs to render DOM or not.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `applying-view-changes-on-rendering` when\n\t * trying to re-render when rendering to DOM has already started.\n\t */\n\tpublic forceRender(): void {\n\t\tthis._hasChangedSinceTheLastRendering = true;\n\t\tthis.getObserver( FocusObserver )!.flush();\n\t\tthis.change( () => {} );\n\t}\n\n\t/**\n\t * Destroys this instance. Makes sure that all observers are destroyed and listeners removed.\n\t */\n\tpublic destroy(): void {\n\t\tfor ( const observer of this._observers.values() ) {\n\t\t\tobserver.destroy();\n\t\t}\n\n\t\tthis.document.destroy();\n\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link #createPositionBefore},\n\t * * {@link #createPositionAfter},\n\t *\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic createPositionAt( itemOrPosition: Item | Position, offset?: PositionOffset ): Position {\n\t\treturn Position._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @param item View item after which the position should be located.\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn Position._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @param item View item before which the position should be located.\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn Position._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** This factory method creates it's own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param start Start position.\n\t * @param end End position. If not set, range will be collapsed at `start` position.\n\t */\n\tpublic createRange( start: Position, end?: Position | null ): Range {\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t */\n\tpublic createRangeOn( item: Item ): Range {\n\t\treturn Range._createOn( item );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic createRangeIn( element: Element ): Range {\n\t\treturn Range._createIn( element );\n\t}\n\n\t/**\n\t * Creates new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * ```ts\n\t * // Creates collapsed selection at the position of given item and offset.\n\t * const paragraph = view.createContainerElement( 'paragraph' );\n\t * const selection = view.createSelection( paragraph, offset );\n\t *\n\t * // Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t * // first child of that element and ends after the last child of that element.\n\t * const selection = view.createSelection( paragraph, 'in' );\n\t *\n\t * // Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t * // just after the item.\n\t * const selection = view.createSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * `Selection`'s factory method allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = view.createSelection( paragraph, 'in', { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = view.createSelection( element, 'in', { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:SELECTABLE `createSelection( selectable, options )`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic createSelection( selectable: Node, placeOrOffset: PlaceOrOffset, options?: SelectionOptions ): Selection;\n\n\t/**\n\t * Creates new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * ```ts\n\t * // Creates empty selection without ranges.\n\t * const selection = view.createSelection();\n\t *\n\t * // Creates selection at the given range.\n\t * const range = view.createRange( start, end );\n\t * const selection = view.createSelection( range );\n\t *\n\t * // Creates selection at the given ranges\n\t * const ranges = [ view.createRange( start1, end2 ), view.createRange( star2, end2 ) ];\n\t * const selection = view.createSelection( ranges );\n\t *\n\t * // Creates selection from the other selection.\n\t * const otherSelection = view.createSelection();\n\t * const selection = view.createSelection( otherSelection );\n\t *\n\t * // Creates selection from the document selection.\n\t * const selection = view.createSelection( editor.editing.view.document.selection );\n\t *\n\t * // Creates selection at the given position.\n\t * const position = view.createPositionFromPath( root, path );\n\t * const selection = view.createSelection( position );\n\t * ```\n\t *\n\t * `Selection`'s factory method allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = view.createSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = view.createSelection( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:NODE_OFFSET `createSelection( node, placeOrOffset, options )`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic createSelection( selectable?: Exclude<Selectable, Node>, options?: SelectionOptions ): Selection;\n\n\tpublic createSelection( ...args: ConstructorParameters<typeof Selection> ): Selection {\n\t\treturn new Selection( ...args );\n\t}\n\n\t/**\n\t * Disables or enables rendering. If the flag is set to `true` then the rendering will be disabled.\n\t * If the flag is set to `false` and if there was some change in the meantime, then the rendering action will be performed.\n\t *\n\t * @internal\n\t * @param flag A flag indicates whether the rendering should be disabled.\n\t */\n\tpublic _disableRendering( flag: boolean ): void {\n\t\tthis._renderingDisabled = flag;\n\n\t\tif ( flag == false ) {\n\t\t\t// Render when you stop blocking rendering.\n\t\t\tthis.change( () => {} );\n\t\t}\n\t}\n\n\t/**\n\t * Renders all changes. In order to avoid triggering the observers (e.g. selection) all observers are disabled\n\t * before rendering and re-enabled after that.\n\t */\n\tprivate _render(): void {\n\t\tthis.isRenderingInProgress = true;\n\t\tthis.disableObservers();\n\t\tthis._renderer.render();\n\t\tthis.enableObservers();\n\t\tthis.isRenderingInProgress = false;\n\t}\n}\n\n/**\n * Fired after a topmost {@link module:engine/view/view~View#change change block} and all\n * {@link module:engine/view/document~Document#registerPostFixer post-fixers} are executed.\n *\n * Actual rendering is performed as a first listener on 'normal' priority.\n *\n * ```ts\n * view.on( 'render', () => {\n * \t// Rendering to the DOM is complete.\n * } );\n * ```\n *\n * This event is useful when you want to update interface elements after the rendering, e.g. position of the\n * balloon panel. If you wants to change view structure use\n * {@link module:engine/view/document~Document#registerPostFixer post-fixers}.\n *\n * @eventName ~View#render\n */\nexport type ViewRenderEvent = {\n\tname: 'render';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/typecheckable\n */\n\nimport type { Marker } from './markercollection';\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type Element from './element';\nimport type LivePosition from './liveposition';\nimport type LiveRange from './liverange';\nimport type Node from './node';\nimport type Position from './position';\nimport type Range from './range';\nimport type RootElement from './rootelement';\nimport type Selection from './selection';\nimport type Text from './text';\nimport type TextProxy from './textproxy';\n\nexport default abstract class TypeCheckable {\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/node~Node} or its subclass.\n\t *\n\t * This method is useful when processing model objects that are of unknown type. For example, a function\n\t * may return a {@link module:engine/model/documentfragment~DocumentFragment} or a {@link module:engine/model/node~Node}\n\t * that can be either a text node or an element. This method can be used to check what kind of object is returned.\n\t *\n\t * ```ts\n\t * someObject.is( 'element' ); // -> true if this is an element\n\t * someObject.is( 'node' ); // -> true if this is a node (a text node or an element)\n\t * someObject.is( 'documentFragment' ); // -> true if this is a document fragment\n\t * ```\n\t *\n\t * Since this method is also available on a range of view objects, you can prefix the type of the object with\n\t * `model:` or `view:` to check, for example, if this is the model's or view's element:\n\t *\n\t * ```ts\n\t * modelElement.is( 'model:element' ); // -> true\n\t * modelElement.is( 'view:element' ); // -> false\n\t * ```\n\t *\n\t * By using this method it is also possible to check a name of an element:\n\t *\n\t * ```ts\n\t * imageElement.is( 'element', 'imageBlock' ); // -> true\n\t * imageElement.is( 'element', 'imageBlock' ); // -> same as above\n\t * imageElement.is( 'model:element', 'imageBlock' ); // -> same as above, but more precise\n\t * ```\n\t *\n\t * @label NODE\n\t */\n\tpublic is( type: 'node' | 'model:node' ): this is Node | Element | Text | RootElement;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/element~Element} or its subclass.\n\t *\n\t * ```ts\n\t * element.is( 'element' ); // -> true\n\t * element.is( 'node' ); // -> true\n\t * element.is( 'model:element' ); // -> true\n\t * element.is( 'model:node' ); // -> true\n\t *\n\t * element.is( 'view:element' ); // -> false\n\t * element.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is an element, you can also check its\n\t * {@link module:engine/model/element~Element#name name}:\n\t *\n\t * ```ts\n\t * element.is( 'element', 'imageBlock' ); // -> true if this is an <imageBlock> element\n\t * text.is( 'element', 'imageBlock' ); -> false\n\t * ```\n\t *\n\t * @label ELEMENT\n\t */\n\tpublic is( type: 'element' | 'model:element' ): this is Element | RootElement;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/rootelement~RootElement}.\n\t *\n\t * ```ts\n\t * rootElement.is( 'rootElement' ); // -> true\n\t * rootElement.is( 'element' ); // -> true\n\t * rootElement.is( 'node' ); // -> true\n\t * rootElement.is( 'model:rootElement' ); // -> true\n\t * rootElement.is( 'model:element' ); // -> true\n\t * rootElement.is( 'model:node' ); // -> true\n\t *\n\t * rootElement.is( 'view:element' ); // -> false\n\t * rootElement.is( 'documentFragment' ); // -> false\n\t * ```\n\t *\n\t * Assuming that the object being checked is an element, you can also check its\n\t * {@link module:engine/model/element~Element#name name}:\n\t *\n\t * ```ts\n\t * rootElement.is( 'rootElement', '$root' ); // -> same as above\n\t * ```\n\t *\n\t * @label ROOT_ELEMENT\n\t */\n\tpublic is( type: 'rootElement' | 'model:rootElement' ): this is RootElement;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/text~Text}.\n\t *\n\t * ```ts\n\t * text.is( '$text' ); // -> true\n\t * text.is( 'node' ); // -> true\n\t * text.is( 'model:$text' ); // -> true\n\t * text.is( 'model:node' ); // -> true\n\t *\n\t * text.is( 'view:$text' ); // -> false\n\t * text.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * **Note:** Until version 20.0.0 this method wasn't accepting `'$text'` type. The legacy `'text'` type is still\n\t * accepted for backward compatibility.\n\t *\n\t * @label TEXT\n\t */\n\tpublic is( type: '$text' | 'model:$text' ): this is Text;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/position~Position} or its subclass.\n\t *\n\t * ```ts\n\t * position.is( 'position' ); // -> true\n\t * position.is( 'model:position' ); // -> true\n\t *\n\t * position.is( 'view:position' ); // -> false\n\t * position.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * @label POSITION\n\t */\n\tpublic is( type: 'position' | 'model:position' ): this is Position | LivePosition;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/liveposition~LivePosition}.\n\t *\n\t * ```ts\n\t * livePosition.is( 'position' ); // -> true\n\t * livePosition.is( 'model:position' ); // -> true\n\t * livePosition.is( 'liveposition' ); // -> true\n\t * livePosition.is( 'model:livePosition' ); // -> true\n\t *\n\t * livePosition.is( 'view:position' ); // -> false\n\t * livePosition.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * @label LIVE_POSITION\n\t */\n\tpublic is( type: 'livePosition' | 'model:livePosition' ): this is LivePosition;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/range~Range} or its subclass.\n\t *\n\t * ```ts\n\t * range.is( 'range' ); // -> true\n\t * range.is( 'model:range' ); // -> true\n\t *\n\t * range.is( 'view:range' ); // -> false\n\t * range.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * @label RANGE\n\t */\n\tpublic is( type: 'range' | 'model:range' ): this is Range | LiveRange;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/liverange~LiveRange}.\n\t *\n\t * ```ts\n\t * liveRange.is( 'range' ); // -> true\n\t * liveRange.is( 'model:range' ); // -> true\n\t * liveRange.is( 'liveRange' ); // -> true\n\t * liveRange.is( 'model:liveRange' ); // -> true\n\t *\n\t * liveRange.is( 'view:range' ); // -> false\n\t * liveRange.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * @label LIVE_RANGE\n\t */\n\tpublic is( type: 'liveRange' | 'model:liveRange' ): this is LiveRange;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/documentfragment~DocumentFragment}.\n\t *\n\t * ```ts\n\t * docFrag.is( 'documentFragment' ); // -> true\n\t * docFrag.is( 'model:documentFragment' ); // -> true\n\t *\n\t * docFrag.is( 'view:documentFragment' ); // -> false\n\t * docFrag.is( 'element' ); // -> false\n\t * docFrag.is( 'node' ); // -> false\n\t * ```\n\t *\n\t * @label DOCUMENT_FRAGMENT\n\t */\n\tpublic is( type: 'documentFragment' | 'model:documentFragment' ): this is DocumentFragment;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/selection~Selection}\n\t * or {@link module:engine/model/documentselection~DocumentSelection}.\n\t *\n\t * ```ts\n\t * selection.is( 'selection' ); // -> true\n\t * selection.is( 'model:selection' ); // -> true\n\t *\n\t * selection.is( 'view:selection' ); // -> false\n\t * selection.is( 'range' ); // -> false\n\t * ```\n\t *\n\t * @label SELECTION\n\t */\n\tpublic is( type: 'selection' | 'model:selection' ): this is Selection | DocumentSelection;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/documentselection~DocumentSelection}.\n\t *\n\t * ```ts\n\t * selection.is( 'selection' ); // -> true\n\t * selection.is( 'documentSelection' ); // -> true\n\t * selection.is( 'model:selection' ); // -> true\n\t * selection.is( 'model:documentSelection' ); // -> true\n\t *\n\t * selection.is( 'view:selection' ); // -> false\n\t * selection.is( 'element' ); // -> false\n\t * selection.is( 'node' ); // -> false\n\t * ```\n\t *\n\t * @label DOCUMENT_SELECTION\n\t */\n\tpublic is( type: 'documentSelection' | 'model:documentSelection' ): this is DocumentSelection;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/markercollection~Marker}.\n\t *\n\t * ```ts\n\t * marker.is( 'marker' ); // -> true\n\t * marker.is( 'model:marker' ); // -> true\n\t *\n\t * marker.is( 'view:element' ); // -> false\n\t * marker.is( 'documentSelection' ); // -> false\n\t * ```\n\t *\n\t * @label MARKER\n\t */\n\tpublic is( type: 'marker' | 'model:marker' ): this is Marker;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/textproxy~TextProxy}.\n\t *\n\t * ```ts\n\t * textProxy.is( '$textProxy' ); // -> true\n\t * textProxy.is( 'model:$textProxy' ); // -> true\n\t *\n\t * textProxy.is( 'view:$textProxy' ); // -> false\n\t * textProxy.is( 'range' ); // -> false\n\t * ```\n\t *\n\t * **Note:** Until version 20.0.0 this method wasn't accepting `'$textProxy'` type. The legacy `'textProxt'` type is still\n\t * accepted for backward compatibility.\n\t *\n\t * @label TEXT_PROXY\n\t */\n\tpublic is( type: '$textProxy' | 'model:$textProxy' ): this is TextProxy;\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/element~Element} or its subclass and has the specified `name`.\n\t *\n\t * ```ts\n\t * element.is( 'element', 'imageBlock' ); // -> true if this is an <imageBlock> element\n\t * text.is( 'element', 'imageBlock' ); -> false\n\t * ```\n\t *\n\t * @label ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'element' | 'model:element', name: N ): this is ( Element | RootElement ) & { name: N };\n\n\t/**\n\t * Checks whether the object is of type {@link module:engine/model/rootelement~RootElement} and has the specified `name`.\n\t *\n\t * ```ts\n\t * rootElement.is( 'rootElement', '$root' );\n\t * ```\n\t *\n\t * @label ROOT_ELEMENT_NAME\n\t */\n\tpublic is<N extends string>( type: 'rootElement' | 'model:rootElement', name: N ): this is RootElement & { name: N };\n\n\t/* istanbul ignore next -- @preserve */\n\tpublic is(): boolean {\n\t\t// There are a lot of overloads above.\n\t\t// Overriding method in derived classes remove them and only `is( type: string ): boolean` is visible which we don't want.\n\t\t// One option would be to copy them all to all classes, but that's ugly.\n\t\t// It's best when TypeScript compiler doesn't see those overloads, except the one in the top base class.\n\t\t// To overload a method, but not let the compiler see it, do after class definition:\n\t\t// `MyClass.prototype.is = function( type: string ) {...}`\n\t\tthrow new Error( 'is() method is abstract' );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-unused-vars */\n\n/**\n * @module engine/model/node\n */\n\nimport TypeCheckable from './typecheckable';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\n\nimport { CKEditorError, compareArrays, toMap } from '@ckeditor/ckeditor5-utils';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\n/**\n * Model node. Most basic structure of model tree.\n *\n * This is an abstract class that is a base for other classes representing different nodes in model.\n *\n * **Note:** If a node is detached from the model tree, you can manipulate it using it's API.\n * However, it is **very important** that nodes already attached to model tree should be only changed through\n * {@link module:engine/model/writer~Writer Writer API}.\n *\n * Changes done by `Node` methods, like {@link module:engine/model/element~Element#_insertChild _insertChild} or\n * {@link module:engine/model/node~Node#_setAttribute _setAttribute}\n * do not generate {@link module:engine/model/operation/operation~Operation operations}\n * which are essential for correct editor work if you modify nodes in {@link module:engine/model/document~Document document} root.\n *\n * The flow of working on `Node` (and classes that inherits from it) is as such:\n * 1. You can create a `Node` instance, modify it using it's API.\n * 2. Add `Node` to the model using `Batch` API.\n * 3. Change `Node` that was already added to the model using `Batch` API.\n *\n * Similarly, you cannot use `Batch` API on a node that has not been added to the model tree, with the exception\n * of {@link module:engine/model/writer~Writer#insert inserting} that node to the model tree.\n *\n * Be aware that using {@link module:engine/model/writer~Writer#remove remove from Batch API} does not allow to use `Node` API because\n * the information about `Node` is still kept in model document.\n *\n * In case of {@link module:engine/model/element~Element element node}, adding and removing children also counts as changing a node and\n * follows same rules.\n */\nexport default abstract class Node extends TypeCheckable {\n\t/**\n\t * Parent of this node. It could be {@link module:engine/model/element~Element}\n\t * or {@link module:engine/model/documentfragment~DocumentFragment}.\n\t * Equals to `null` if the node has no parent.\n\t */\n\tpublic readonly parent: Element | DocumentFragment | null = null;\n\n\t/**\n\t * Unique root name used to identify this root element by {@link module:engine/model/document~Document}.\n\t */\n\tdeclare public readonly rootName: string | undefined;\n\n\t/**\n\t * Attributes set on this node.\n\t */\n\tprivate _attrs: Map<string, unknown>;\n\n\t/**\n\t * Creates a model node.\n\t *\n\t * This is an abstract class, so this constructor should not be used directly.\n\t *\n\t * @param attrs Node's attributes. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t */\n\tconstructor( attrs?: NodeAttributes ) {\n\t\tsuper();\n\n\t\tthis._attrs = toMap( attrs! );\n\t}\n\n\t/**\n\t * {@link module:engine/model/document~Document Document} that owns this root element.\n\t */\n\tpublic get document(): Document | null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Index of this node in its parent or `null` if the node has no parent.\n\t *\n\t * Accessing this property throws an error if this node's parent element does not contain it.\n\t * This means that model tree got broken.\n\t */\n\tpublic get index(): number | null {\n\t\tlet pos;\n\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( ( pos = this.parent.getChildIndex( this ) ) === null ) {\n\t\t\tthrow new CKEditorError( 'model-node-not-found-in-parent', this );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Offset at which this node starts in its parent. It is equal to the sum of {@link #offsetSize offsetSize}\n\t * of all its previous siblings. Equals to `null` if node has no parent.\n\t *\n\t * Accessing this property throws an error if this node's parent element does not contain it.\n\t * This means that model tree got broken.\n\t */\n\tpublic get startOffset(): number | null {\n\t\tlet pos;\n\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( ( pos = this.parent.getChildStartOffset( this ) ) === null ) {\n\t\t\tthrow new CKEditorError( 'model-node-not-found-in-parent', this );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Offset size of this node. Represents how much \"offset space\" is occupied by the node in it's parent.\n\t * It is important for {@link module:engine/model/position~Position position}. When node has `offsetSize` greater than `1`, position\n\t * can be placed between that node start and end. `offsetSize` greater than `1` is for nodes that represents more\n\t * than one entity, i.e. {@link module:engine/model/text~Text text node}.\n\t */\n\tpublic get offsetSize(): number {\n\t\treturn 1;\n\t}\n\n\t/**\n\t * Offset at which this node ends in it's parent. It is equal to the sum of this node's\n\t * {@link module:engine/model/node~Node#startOffset start offset} and {@link #offsetSize offset size}.\n\t * Equals to `null` if the node has no parent.\n\t */\n\tpublic get endOffset(): number | null {\n\t\tif ( !this.parent ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.startOffset! + this.offsetSize;\n\t}\n\n\t/**\n\t * Node's next sibling or `null` if the node is a last child of it's parent or if the node has no parent.\n\t */\n\tpublic get nextSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index + 1 ) ) || null;\n\t}\n\n\t/**\n\t * Node's previous sibling or `null` if the node is a first child of it's parent or if the node has no parent.\n\t */\n\tpublic get previousSibling(): Node | null {\n\t\tconst index = this.index;\n\n\t\treturn ( index !== null && this.parent!.getChild( index - 1 ) ) || null;\n\t}\n\n\t/**\n\t * The top-most ancestor of the node. If node has no parent it is the root itself. If the node is a part\n\t * of {@link module:engine/model/documentfragment~DocumentFragment}, it's `root` is equal to that `DocumentFragment`.\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet root: Node | DocumentFragment = this;\n\n\t\twhile ( root.parent ) {\n\t\t\troot = root.parent;\n\t\t}\n\n\t\treturn root;\n\t}\n\n\t/**\n\t * Returns `true` if the node is inside a document root that is attached to the document.\n\t */\n\tpublic isAttached(): boolean {\n\t\t// If the node has no parent it means that it is a root.\n\t\t// But this is not a `RootElement`, so it means that it is not attached.\n\t\t//\n\t\t// If this is not the root, check if this element's root is attached.\n\t\treturn this.parent === null ? false : this.root.isAttached();\n\t}\n\n\t/**\n\t * Gets path to the node. The path is an array containing starting offsets of consecutive ancestors of this node,\n\t * beginning from {@link module:engine/model/node~Node#root root}, down to this node's starting offset. The path can be used to\n\t * create {@link module:engine/model/position~Position Position} instance.\n\t *\n\t * ```ts\n\t * const abc = new Text( 'abc' );\n\t * const foo = new Text( 'foo' );\n\t * const h1 = new Element( 'h1', null, new Text( 'header' ) );\n\t * const p = new Element( 'p', null, [ abc, foo ] );\n\t * const div = new Element( 'div', null, [ h1, p ] );\n\t * foo.getPath(); // Returns [ 1, 3 ]. `foo` is in `p` which is in `div`. `p` starts at offset 1, while `foo` at 3.\n\t * h1.getPath(); // Returns [ 0 ].\n\t * div.getPath(); // Returns [].\n\t * ```\n\t */\n\tpublic getPath(): Array<number> {\n\t\tconst path = [];\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node | DocumentFragment = this;\n\n\t\twhile ( node.parent ) {\n\t\t\tpath.unshift( node.startOffset! );\n\t\t\tnode = node.parent;\n\t\t}\n\n\t\treturn path;\n\t}\n\n\t/**\n\t * Returns ancestors array of this node.\n\t *\n\t * @param options Options object.\n\t * @param options.includeSelf When set to `true` this node will be also included in parent's array.\n\t * @param options.parentFirst When set to `true`, array will be sorted from node's parent to root element,\n\t * otherwise root element will be the first item in the array.\n\t * @returns Array with ancestors.\n\t */\n\tpublic getAncestors( options: { includeSelf?: boolean; parentFirst?: boolean } = {} ): Array<Node | DocumentFragment> {\n\t\tconst ancestors: Array<Node | DocumentFragment> = [];\n\t\tlet parent = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t/**\n\t * Returns a {@link module:engine/model/element~Element} or {@link module:engine/model/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both nodes.\n\t *\n\t * @param node The second node.\n\t * @param options Options object.\n\t * @param options.includeSelf When set to `true` both nodes will be considered \"ancestors\" too.\n\t * Which means that if e.g. node A is inside B, then their common ancestor will be B.\n\t */\n\tpublic getCommonAncestor( node: Node, options: { includeSelf?: boolean } = {} ): Element | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors( options );\n\t\tconst ancestorsB = node.getAncestors( options );\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ] as ( Element | DocumentFragment );\n\t}\n\n\t/**\n\t * Returns whether this node is before given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/model/documentfragment~DocumentFragment}s).\n\t *\n\t * @param node Node to compare with.\n\t */\n\tpublic isBefore( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst thisPath = this.getPath();\n\t\tconst nodePath = node.getPath();\n\n\t\tconst result = compareArrays( thisPath, nodePath );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'prefix':\n\t\t\t\treturn true;\n\n\t\t\tcase 'extension':\n\t\t\t\treturn false;\n\n\t\t\tdefault:\n\t\t\t\treturn thisPath[ result as number ] < nodePath[ result as number ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns whether this node is after given node. `false` is returned if nodes are in different trees (for example,\n\t * in different {@link module:engine/model/documentfragment~DocumentFragment}s).\n\t *\n\t * @param node Node to compare with.\n\t */\n\tpublic isAfter( node: Node ): boolean {\n\t\t// Given node is not before this node if they are same.\n\t\tif ( this == node ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Return `false` if it is impossible to compare nodes.\n\t\tif ( this.root !== node.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// In other cases, just check if the `node` is before, and return the opposite.\n\t\treturn !this.isBefore( node );\n\t}\n\n\t/**\n\t * Checks if the node has an attribute with given key.\n\t *\n\t * @param key Key of attribute to check.\n\t * @returns `true` if attribute with given key is set on node, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this._attrs.has( key );\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on node.\n\t *\n\t * @param key Key of attribute to look for.\n\t * @returns Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this._attrs.get( key );\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this._attrs.entries();\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attribute keys.\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this._attrs.keys();\n\t}\n\n\t/**\n\t * Converts `Node` to plain object and returns it.\n\t *\n\t * @returns `Node` converted to plain object.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json: any = {};\n\n\t\t// Serializes attributes to the object.\n\t\t// attributes = { a: 'foo', b: 1, c: true }.\n\t\tif ( this._attrs.size ) {\n\t\t\tjson.attributes = Array.from( this._attrs ).reduce( ( result, attr ) => {\n\t\t\t\tresult[ attr[ 0 ] ] = attr[ 1 ];\n\n\t\t\t\treturn result;\n\t\t\t}, {} as any );\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a copy of this node, that is a node with exactly same attributes, and returns it.\n\t *\n\t * @internal\n\t * @returns Node with same attributes as this node.\n\t */\n\tpublic _clone( _deep?: boolean ): Node {\n\t\treturn new ( this.constructor as any )( this._attrs );\n\t}\n\n\t/**\n\t * Removes this node from it's parent.\n\t *\n\t * @internal\n\t * @see module:engine/model/writer~Writer#remove\n\t */\n\tpublic _remove(): void {\n\t\tthis.parent!._removeChildren( this.index! );\n\t}\n\n\t/**\n\t * Sets attribute on the node. If attribute with the same key already is set, it's value is overwritten.\n\t *\n\t * @see module:engine/model/writer~Writer#setAttribute\n\t * @internal\n\t * @param key Key of attribute to set.\n\t * @param value Attribute value.\n\t */\n\tpublic _setAttribute( key: string, value: unknown ): void {\n\t\tthis._attrs.set( key, value );\n\t}\n\n\t/**\n\t * Removes all attributes from the node and sets given attributes.\n\t *\n\t * @see module:engine/model/writer~Writer#setAttributes\n\t * @internal\n\t * @param attrs Attributes to set. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t */\n\tpublic _setAttributesTo( attrs: NodeAttributes ): void {\n\t\tthis._attrs = toMap( attrs );\n\t}\n\n\t/**\n\t * Removes an attribute with given key from the node.\n\t *\n\t * @see module:engine/model/writer~Writer#removeAttribute\n\t * @internal\n\t * @param key Key of attribute to remove.\n\t * @returns `true` if the attribute was set on the element, `false` otherwise.\n\t */\n\tpublic _removeAttribute( key: string ): boolean {\n\t\treturn this._attrs.delete( key );\n\t}\n\n\t/**\n\t * Removes all attributes from the node.\n\t *\n\t * @see module:engine/model/writer~Writer#clearAttributes\n\t * @internal\n\t */\n\tpublic _clearAttributes(): void {\n\t\tthis._attrs.clear();\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nNode.prototype.is = function( type: string ): boolean {\n\treturn type === 'node' || type === 'model:node';\n};\n\n/**\n * The node's parent does not contain this node.\n *\n * @error model-node-not-found-in-parent\n */\n\n/**\n * Node's attributes. See {@link module:utils/tomap~toMap} for a list of accepted values.\n */\nexport type NodeAttributes = Record<string, unknown> | Iterable<[ string, unknown ]>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/nodelist\n */\n\nimport Node from './node';\n\nimport { CKEditorError, spliceArray } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Provides an interface to operate on a list of {@link module:engine/model/node~Node nodes}. `NodeList` is used internally\n * in classes like {@link module:engine/model/element~Element Element}\n * or {@link module:engine/model/documentfragment~DocumentFragment DocumentFragment}.\n */\nexport default class NodeList implements Iterable<Node> {\n\t/**\n\t * Nodes contained in this node list.\n\t */\n\tprivate _nodes: Array<Node> = [];\n\n\t/**\n\t * Creates an empty node list.\n\t *\n\t * @internal\n\t * @param nodes Nodes contained in this node list.\n\t */\n\tconstructor( nodes?: Iterable<Node> ) {\n\t\tif ( nodes ) {\n\t\t\tthis._insertNodes( 0, nodes );\n\t\t}\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all nodes contained inside this node list.\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<Node> {\n\t\treturn this._nodes[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Number of nodes contained inside this node list.\n\t */\n\tpublic get length(): number {\n\t\treturn this._nodes.length;\n\t}\n\n\t/**\n\t * Sum of {@link module:engine/model/node~Node#offsetSize offset sizes} of all nodes contained inside this node list.\n\t */\n\tpublic get maxOffset(): number {\n\t\treturn this._nodes.reduce( ( sum, node ) => sum + node.offsetSize, 0 );\n\t}\n\n\t/**\n\t * Gets the node at the given index. Returns `null` if incorrect index was passed.\n\t */\n\tpublic getNode( index: number ): Node | null {\n\t\treturn this._nodes[ index ] || null;\n\t}\n\n\t/**\n\t * Returns an index of the given node. Returns `null` if given node is not inside this node list.\n\t */\n\tpublic getNodeIndex( node: Node ): number | null {\n\t\tconst index = this._nodes.indexOf( node );\n\n\t\treturn index == -1 ? null : index;\n\t}\n\n\t/**\n\t * Returns the starting offset of given node. Starting offset is equal to the sum of\n\t * {@link module:engine/model/node~Node#offsetSize offset sizes} of all nodes that are before this node in this node list.\n\t */\n\tpublic getNodeStartOffset( node: Node ): number | null {\n\t\tconst index = this.getNodeIndex( node );\n\n\t\treturn index === null ? null : this._nodes.slice( 0, index ).reduce( ( sum, node ) => sum + node.offsetSize, 0 );\n\t}\n\n\t/**\n\t * Converts index to offset in node list.\n\t *\n\t * Returns starting offset of a node that is at given index. Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * `model-nodelist-index-out-of-bounds` if given index is less than `0` or more than {@link #length}.\n\t */\n\tpublic indexToOffset( index: number ): number {\n\t\tif ( index == this._nodes.length ) {\n\t\t\treturn this.maxOffset;\n\t\t}\n\n\t\tconst node = this._nodes[ index ];\n\n\t\tif ( !node ) {\n\t\t\t/**\n\t\t\t * Given index cannot be found in the node list.\n\t\t\t *\n\t\t\t * @error model-nodelist-index-out-of-bounds\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-nodelist-index-out-of-bounds', this );\n\t\t}\n\n\t\treturn this.getNodeStartOffset( node )!;\n\t}\n\n\t/**\n\t * Converts offset in node list to index.\n\t *\n\t * Returns index of a node that occupies given offset. Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError}\n\t * `model-nodelist-offset-out-of-bounds` if given offset is less than `0` or more than {@link #maxOffset}.\n\t */\n\tpublic offsetToIndex( offset: number ): number {\n\t\tlet totalOffset = 0;\n\n\t\tfor ( const node of this._nodes ) {\n\t\t\tif ( offset >= totalOffset && offset < totalOffset + node.offsetSize ) {\n\t\t\t\treturn this.getNodeIndex( node )!;\n\t\t\t}\n\n\t\t\ttotalOffset += node.offsetSize;\n\t\t}\n\n\t\tif ( totalOffset != offset ) {\n\t\t\t/**\n\t\t\t * Given offset cannot be found in the node list.\n\t\t\t *\n\t\t\t * @error model-nodelist-offset-out-of-bounds\n\t\t\t * @param offset\n\t\t\t * @param nodeList Stringified node list.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-nodelist-offset-out-of-bounds',\n\t\t\t\tthis,\n\t\t\t\t{\n\t\t\t\t\toffset,\n\t\t\t\t\tnodeList: this\n\t\t\t\t}\n\t\t\t);\n\t\t}\n\n\t\treturn this.length;\n\t}\n\n\t/**\n\t * Inserts given nodes at given index.\n\t *\n\t * @internal\n\t * @param index Index at which nodes should be inserted.\n\t * @param nodes Nodes to be inserted.\n\t */\n\tpublic _insertNodes( index: number, nodes: Iterable<Node> ): void {\n\t\t// Validation.\n\t\tfor ( const node of nodes ) {\n\t\t\tif ( !( node instanceof Node ) ) {\n\t\t\t\t/**\n\t\t\t\t * Trying to insert an object which is not a Node instance.\n\t\t\t\t *\n\t\t\t\t * @error model-nodelist-insertnodes-not-node\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-nodelist-insertnodes-not-node', this );\n\t\t\t}\n\t\t}\n\n\t\tthis._nodes = spliceArray<Node>( this._nodes, Array.from( nodes ), index, 0 );\n\t}\n\n\t/**\n\t * Removes one or more nodes starting at the given index.\n\t *\n\t * @internal\n\t * @param indexStart Index of the first node to remove.\n\t * @param howMany Number of nodes to remove.\n\t * @returns Array containing removed nodes.\n\t */\n\tpublic _removeNodes( indexStart: number, howMany: number = 1 ): Array<Node> {\n\t\treturn this._nodes.splice( indexStart, howMany );\n\t}\n\n\t/**\n\t * Converts `NodeList` instance to an array containing nodes that were inserted in the node list. Nodes\n\t * are also converted to their plain object representation.\n\t *\n\t * @returns `NodeList` instance converted to `Array`.\n\t */\n\tpublic toJSON(): unknown {\n\t\treturn this._nodes.map( node => node.toJSON() );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module utils/splicearray\n */\n\nconst BIG_CHUNK_SIZE = 10000;\n\n/**\n * Splices one array into another. To be used instead of `Array.prototype.splice` as the latter may\n * throw \"Maximum call stack size exceeded\" when passed huge number of items to insert.\n *\n * Note: in contrary to Array.splice, this function does not modify the original `target`.\n *\n * ```ts\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 0, 0 );\t// [ 3, 4, 1, 2 ]\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 1, 1 );\t// [ 1, 3, 4 ]\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 1, 0 );\t// [ 1, 3, 4, 2 ]\n * spliceArray( [ 1, 2 ], [ 3, 4 ], 2, 0 );\t// [ 1, 2, 3, 4 ]\n * spliceArray( [ 1, 2 ], [],       0, 1 );\t// [ 2 ]\n * ```\n *\n * @param target Array to be spliced.\n * @param source Array of elements to be inserted to target.\n * @param start Index at which nodes should be inserted/removed.\n * @param count Number of items.\n *\n * @returns New spliced array.\n */\nexport default function spliceArray<T>( target: Array<T>, source: Array<T>, start: number, count: number ): Array<T> {\n\t// In case of performance problems, see: https://github.com/ckeditor/ckeditor5/pull/12429/files#r965850568\n\tif ( Math.max( source.length, target.length ) > BIG_CHUNK_SIZE ) {\n\t\treturn target.slice( 0, start ).concat( source ).concat( target.slice( start + count, target.length ) );\n\t} else {\n\t\tconst newTarget = Array.from( target );\n\t\tnewTarget.splice( start, count, ...source );\n\n\t\treturn newTarget;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/text\n */\n\nimport Node, { type NodeAttributes } from './node';\n\n// @if CK_DEBUG_ENGINE // const { convertMapToStringifiedObject } = require( '../dev-utils/utils' );\n\n/**\n * Model text node. Type of {@link module:engine/model/node~Node node} that contains {@link module:engine/model/text~Text#data text data}.\n *\n * **Important:** see {@link module:engine/model/node~Node} to read about restrictions using `Text` and `Node` API.\n *\n * **Note:** keep in mind that `Text` instances might indirectly got removed from model tree when model is changed.\n * This happens when {@link module:engine/model/writer~Writer model writer} is used to change model and the text node is merged with\n * another text node. Then, both text nodes are removed and a new text node is inserted into the model. Because of\n * this behavior, keeping references to `Text` is not recommended. Instead, consider creating\n * {@link module:engine/model/liveposition~LivePosition live position} placed before the text node.\n */\nexport default class Text extends Node {\n\t/**\n\t * Text data contained in this text node.\n\t *\n\t * @internal\n\t */\n\tpublic _data: string;\n\n\t/**\n\t * Creates a text node.\n\t *\n\t * **Note:** Constructor of this class shouldn't be used directly in the code.\n\t * Use the {@link module:engine/model/writer~Writer#createText} method instead.\n\t *\n\t * @internal\n\t * @param data Node's text.\n\t * @param attrs Node's attributes. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t */\n\tconstructor( data?: string, attrs?: NodeAttributes ) {\n\t\tsuper( attrs );\n\t\tthis._data = data || '';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override get offsetSize(): number {\n\t\treturn this.data.length;\n\t}\n\n\t/**\n\t * Returns a text data contained in the node.\n\t */\n\tpublic get data(): string {\n\t\treturn this._data;\n\t}\n\n\t/**\n\t * Converts `Text` instance to plain object and returns it.\n\t *\n\t * @returns`Text` instance converted to plain object.\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.data = this.data;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a copy of this text node and returns it. Created text node has same text data and attributes as original text node.\n\t *\n\t * @internal\n\t * @returns `Text` instance created using given plain object.\n\t */\n\tpublic override _clone(): Text {\n\t\treturn new Text( this.data, this.getAttributes() );\n\t}\n\n\t/**\n\t * Creates a `Text` instance from given plain object (i.e. parsed JSON string).\n\t *\n\t * @param json Plain object to be converted to `Text`.\n\t * @returns `Text` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any ): Text {\n\t\treturn new Text( json.data, json.attributes );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logExtended(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( `ModelText: ${ this }, attrs: ${ convertMapToStringifiedObject( this.getAttributes() ) }` );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelText: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nText.prototype.is = function( type: string ): boolean {\n\treturn type === '$text' || type === 'model:$text' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'text' || type === 'model:text' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype === 'node' || type === 'model:node';\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/textproxy\n */\n\nimport TypeCheckable from './typecheckable';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Node from './node';\nimport type Text from './text';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { convertMapToStringifiedObject } = require( '../dev-utils/utils' );\n\n/**\n * `TextProxy` represents a part of {@link module:engine/model/text~Text text node}.\n *\n * Since {@link module:engine/model/position~Position positions} can be placed between characters of a text node,\n * {@link module:engine/model/range~Range ranges} may contain only parts of text nodes. When {@link module:engine/model/range~Range#getItems\n * getting items}\n * contained in such range, we need to represent a part of that text node, since returning the whole text node would be incorrect.\n * `TextProxy` solves this issue.\n *\n * `TextProxy` has an API similar to {@link module:engine/model/text~Text Text} and allows to do most of the common tasks performed\n * on model nodes.\n *\n * **Note:** Some `TextProxy` instances may represent whole text node, not just a part of it.\n * See {@link module:engine/model/textproxy~TextProxy#isPartial}.\n *\n * **Note:** `TextProxy` is not an instance of {@link module:engine/model/node~Node node}. Keep this in mind when using it as a\n * parameter of methods.\n *\n * **Note:** `TextProxy` is a readonly interface. If you want to perform changes on model data represented by a `TextProxy`\n * use {@link module:engine/model/writer~Writer model writer API}.\n *\n * **Note:** `TextProxy` instances are created on the fly, basing on the current state of model. Because of this, it is\n * highly unrecommended to store references to `TextProxy` instances. `TextProxy` instances are not refreshed when\n * model changes, so they might get invalidated. Instead, consider creating {@link module:engine/model/liveposition~LivePosition live\n * position}.\n *\n * `TextProxy` instances are created by {@link module:engine/model/treewalker~TreeWalker model tree walker}. You should not need to create\n * an instance of this class by your own.\n */\nexport default class TextProxy extends TypeCheckable {\n\t/**\n\t * Text node which part is represented by this text proxy.\n\t */\n\tpublic readonly textNode: Text;\n\n\t/**\n\t * Text data represented by this text proxy.\n\t */\n\tpublic readonly data: string;\n\n\t/**\n\t * Offset in {@link module:engine/model/textproxy~TextProxy#textNode text node} from which the text proxy starts.\n\t */\n\tpublic readonly offsetInText: number;\n\n\t/**\n\t * Creates a text proxy.\n\t *\n\t * @internal\n\t * @param textNode Text node which part is represented by this text proxy.\n\t * @param offsetInText Offset in {@link module:engine/model/textproxy~TextProxy#textNode text node} from which the text proxy\n\t * starts.\n\t * @param length Text proxy length, that is how many text node's characters, starting from `offsetInText` it represents.\n\t */\n\tconstructor( textNode: Text, offsetInText: number, length: number ) {\n\t\tsuper();\n\n\t\tthis.textNode = textNode;\n\n\t\tif ( offsetInText < 0 || offsetInText > textNode.offsetSize ) {\n\t\t\t/**\n\t\t\t * Given `offsetInText` value is incorrect.\n\t\t\t *\n\t\t\t * @error model-textproxy-wrong-offsetintext\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-textproxy-wrong-offsetintext', this );\n\t\t}\n\n\t\tif ( length < 0 || offsetInText + length > textNode.offsetSize ) {\n\t\t\t/**\n\t\t\t * Given `length` value is incorrect.\n\t\t\t *\n\t\t\t * @error model-textproxy-wrong-length\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-textproxy-wrong-length', this );\n\t\t}\n\t\tthis.data = textNode.data.substring( offsetInText, offsetInText + length );\n\n\t\tthis.offsetInText = offsetInText;\n\t}\n\n\t/**\n\t * Offset at which this text proxy starts in it's parent.\n\t *\n\t * @see module:engine/model/node~Node#startOffset\n\t */\n\tpublic get startOffset(): number | null {\n\t\treturn this.textNode.startOffset !== null ? this.textNode.startOffset + this.offsetInText : null;\n\t}\n\n\t/**\n\t * Offset size of this text proxy. Equal to the number of characters represented by the text proxy.\n\t *\n\t * @see module:engine/model/node~Node#offsetSize\n\t */\n\tpublic get offsetSize(): number {\n\t\treturn this.data.length;\n\t}\n\n\t/**\n\t * Offset at which this text proxy ends in it's parent.\n\t *\n\t * @see module:engine/model/node~Node#endOffset\n\t */\n\tpublic get endOffset(): number | null {\n\t\treturn this.startOffset !== null ? this.startOffset + this.offsetSize : null;\n\t}\n\n\t/**\n\t * Flag indicating whether `TextProxy` instance covers only part of the original {@link module:engine/model/text~Text text node}\n\t * (`true`) or the whole text node (`false`).\n\t *\n\t * This is `false` when text proxy starts at the very beginning of {@link module:engine/model/textproxy~TextProxy#textNode textNode}\n\t * ({@link module:engine/model/textproxy~TextProxy#offsetInText offsetInText} equals `0`) and text proxy sizes is equal to\n\t * text node size.\n\t */\n\tpublic get isPartial(): boolean {\n\t\treturn this.offsetSize !== this.textNode.offsetSize;\n\t}\n\n\t/**\n\t * Parent of this text proxy, which is same as parent of text node represented by this text proxy.\n\t */\n\tpublic get parent(): Element | DocumentFragment | null {\n\t\treturn this.textNode.parent;\n\t}\n\n\t/**\n\t * Root of this text proxy, which is same as root of text node represented by this text proxy.\n\t */\n\tpublic get root(): Node | DocumentFragment {\n\t\treturn this.textNode.root;\n\t}\n\n\t/**\n\t * Gets path to this text proxy.\n\t *\n\t * @see module:engine/model/node~Node#getPath\n\t */\n\tpublic getPath(): Array<number> {\n\t\tconst path = this.textNode.getPath();\n\n\t\tif ( path.length > 0 ) {\n\t\t\tpath[ path.length - 1 ] += this.offsetInText;\n\t\t}\n\n\t\treturn path;\n\t}\n\n\t/**\n\t * Returns ancestors array of this text proxy.\n\t *\n\t * @param options Options object.\n\t * @param options.includeSelf When set to `true` this text proxy will be also included in parent's array.\n\t * @param options.parentFirst When set to `true`, array will be sorted from text proxy parent to root element,\n\t * otherwise root element will be the first item in the array.\n\t * @returns Array with ancestors.\n\t */\n\tpublic getAncestors( options: {\n\t\tincludeSelf?: boolean;\n\t\tparentFirst?: boolean;\n\t} = {} ): Array<TextProxy | Element | DocumentFragment> {\n\t\tconst ancestors: Array<TextProxy | Element | DocumentFragment> = [];\n\t\tlet parent: TextProxy | Element | DocumentFragment | null = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tancestors[ options.parentFirst ? 'push' : 'unshift' ]( parent );\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn ancestors;\n\t}\n\n\t/**\n\t * Checks if this text proxy has an attribute for given key.\n\t *\n\t * @param key Key of attribute to check.\n\t * @returns `true` if attribute with given key is set on text proxy, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this.textNode.hasAttribute( key );\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on text proxy.\n\t *\n\t * @param key Key of attribute to look for.\n\t * @returns Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this.textNode.getAttribute( key );\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attributes. Attributes are returned as arrays containing two\n\t * items. First one is attribute key and second is attribute value.\n\t *\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this.textNode.getAttributes();\n\t}\n\n\t/**\n\t * Returns iterator that iterates over this node's attribute keys.\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this.textNode.getAttributeKeys();\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `#${ this.data }`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelTextProxy: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logExtended(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( `ModelTextProxy: ${ this }, ` +\n\t// @if CK_DEBUG_ENGINE // \t\t`attrs: ${ convertMapToStringifiedObject( this.getAttributes() ) }` );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nTextProxy.prototype.is = function( type: string ): boolean {\n\treturn type === '$textProxy' || type === 'model:$textProxy' ||\n\t\t// This are legacy values kept for backward compatibility.\n\t\ttype === 'textProxy' || type === 'model:textProxy';\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/element\n */\n\nimport Node, { type NodeAttributes } from './node';\nimport NodeList from './nodelist';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type Item from './item';\n\nimport { isIterable } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { stringifyMap, convertMapToStringifiedObject, convertMapToTags } = require( '../dev-utils/utils' );\n\n/**\n * Model element. Type of {@link module:engine/model/node~Node node} that has a {@link module:engine/model/element~Element#name name} and\n * {@link module:engine/model/element~Element#getChildren child nodes}.\n *\n * **Important**: see {@link module:engine/model/node~Node} to read about restrictions using `Element` and `Node` API.\n */\nexport default class Element extends Node {\n\t/**\n\t * Element name.\n\t */\n\tpublic readonly name: string;\n\n\t/**\n\t * List of children nodes.\n\t */\n\tprivate readonly _children: NodeList = new NodeList();\n\n\t/**\n\t * Creates a model element.\n\t *\n\t * **Note:** Constructor of this class shouldn't be used directly in the code.\n\t * Use the {@link module:engine/model/writer~Writer#createElement} method instead.\n\t *\n\t * @internal\n\t * @param name Element's name.\n\t * @param attrs Element's attributes. See {@link module:utils/tomap~toMap} for a list of accepted values.\n\t * @param children One or more nodes to be inserted as children of created element.\n\t */\n\tconstructor(\n\t\tname: string,\n\t\tattrs?: NodeAttributes,\n\t\tchildren?: string | Item | Iterable<string | Item>\n\t) {\n\t\tsuper( attrs );\n\n\t\tthis.name = name;\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\t}\n\n\t/**\n\t * Number of this element's children.\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Sum of {@link module:engine/model/node~Node#offsetSize offset sizes} of all of this element's children.\n\t */\n\tpublic get maxOffset(): number {\n\t\treturn this._children.maxOffset;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this element, `false` otherwise.\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this.childCount === 0;\n\t}\n\n\t/**\n\t * Gets the child at the given index.\n\t */\n\tpublic getChild( index: number ): Node | null {\n\t\treturn this._children.getNode( index );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all of this element's children.\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns an index of the given child node. Returns `null` if given node is not a child of this element.\n\t *\n\t * @param node Child node to look for.\n\t * @returns Child node's index in this element.\n\t */\n\tpublic getChildIndex( node: Node ): number | null {\n\t\treturn this._children.getNodeIndex( node );\n\t}\n\n\t/**\n\t * Returns the starting offset of given child. Starting offset is equal to the sum of\n\t * {@link module:engine/model/node~Node#offsetSize offset sizes} of all node's siblings that are before it. Returns `null` if\n\t * given node is not a child of this element.\n\t *\n\t * @param node Child node to look for.\n\t * @returns Child node's starting offset.\n\t */\n\tpublic getChildStartOffset( node: Node ): number | null {\n\t\treturn this._children.getNodeStartOffset( node );\n\t}\n\n\t/**\n\t * Returns index of a node that occupies given offset. If given offset is too low, returns `0`. If given offset is\n\t * too high, returns {@link module:engine/model/element~Element#getChildIndex index after last child}.\n\t *\n\t * ```ts\n\t * const textNode = new Text( 'foo' );\n\t * const pElement = new Element( 'p' );\n\t * const divElement = new Element( [ textNode, pElement ] );\n\t * divElement.offsetToIndex( -1 ); // Returns 0, because offset is too low.\n\t * divElement.offsetToIndex( 0 ); // Returns 0, because offset 0 is taken by `textNode` which is at index 0.\n\t * divElement.offsetToIndex( 1 ); // Returns 0, because `textNode` has `offsetSize` equal to 3, so it occupies offset 1 too.\n\t * divElement.offsetToIndex( 2 ); // Returns 0.\n\t * divElement.offsetToIndex( 3 ); // Returns 1.\n\t * divElement.offsetToIndex( 4 ); // Returns 2. There are no nodes at offset 4, so last available index is returned.\n\t * ```\n\t */\n\tpublic offsetToIndex( offset: number ): number {\n\t\treturn this._children.offsetToIndex( offset );\n\t}\n\n\t/**\n\t * Returns a descendant node by its path relative to this element.\n\t *\n\t * ```ts\n\t * // <this>a<b>c</b></this>\n\t * this.getNodeByPath( [ 0 ] );     // -> \"a\"\n\t * this.getNodeByPath( [ 1 ] );     // -> <b>\n\t * this.getNodeByPath( [ 1, 0 ] );  // -> \"c\"\n\t * ```\n\t *\n\t * @param relativePath Path of the node to find, relative to this element.\n\t */\n\tpublic getNodeByPath( relativePath: Array<number> ): Node {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node = this;\n\n\t\tfor ( const index of relativePath ) {\n\t\t\tnode = ( node as Element ).getChild( ( node as Element ).offsetToIndex( index ) )!;\n\t\t}\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Returns the parent element of the given name. Returns null if the element is not inside the desired parent.\n\t *\n\t * @param parentName The name of the parent element to find.\n\t * @param options Options object.\n\t * @param options.includeSelf When set to `true` this node will be also included while searching.\n\t */\n\tpublic findAncestor( parentName: string, options: { includeSelf?: boolean } = {} ): Element | null {\n\t\tlet parent = options.includeSelf ? this : this.parent;\n\n\t\twhile ( parent ) {\n\t\t\tif ( parent.name === parentName ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Converts `Element` instance to plain object and returns it. Takes care of converting all of this element's children.\n\t *\n\t * @returns `Element` instance converted to plain object.\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.name = this.name;\n\n\t\tif ( this._children.length > 0 ) {\n\t\t\tjson.children = [];\n\n\t\t\tfor ( const node of this._children ) {\n\t\t\t\tjson.children.push( node.toJSON() );\n\t\t\t}\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a copy of this element and returns it. Created element has the same name and attributes as the original element.\n\t * If clone is deep, the original element's children are also cloned. If not, then empty element is returned.\n\t *\n\t * @internal\n\t * @param deep If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any child.\n\t */\n\tpublic override _clone( deep = false ): Element {\n\t\tconst children = deep ? Array.from( this._children ).map( node => node._clone( true ) ) : undefined;\n\n\t\treturn new Element( this.name, this.getAttributes(), children );\n\t}\n\n\t/**\n\t * {@link module:engine/model/element~Element#_insertChild Inserts} one or more nodes at the end of this element.\n\t *\n\t * @see module:engine/model/writer~Writer#append\n\t * @internal\n\t * @param nodes Nodes to be inserted.\n\t */\n\tpublic _appendChild( nodes: string | Item | Iterable<string | Item> ): void {\n\t\tthis._insertChild( this.childCount, nodes );\n\t}\n\n\t/**\n\t * Inserts one or more nodes at the given index and sets {@link module:engine/model/node~Node#parent parent} of these nodes\n\t * to this element.\n\t *\n\t * @see module:engine/model/writer~Writer#insert\n\t * @internal\n\t * @param index Index at which nodes should be inserted.\n\t * @param items Items to be inserted.\n\t */\n\tpublic _insertChild( index: number, items: string | Item | Iterable<string | Item> ): void {\n\t\tconst nodes = normalize( items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\t( node as any ).parent = this;\n\t\t}\n\n\t\tthis._children._insertNodes( index, nodes );\n\t}\n\n\t/**\n\t * Removes one or more nodes starting at the given index and sets\n\t * {@link module:engine/model/node~Node#parent parent} of these nodes to `null`.\n\t *\n\t * @see module:engine/model/writer~Writer#remove\n\t * @internal\n\t * @param index Index of the first node to remove.\n\t * @param howMany Number of nodes to remove.\n\t * @returns Array containing removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tconst nodes = this._children._removeNodes( index, howMany );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t( node as any ).parent = null;\n\t\t}\n\n\t\treturn nodes;\n\t}\n\n\t/**\n\t * Creates an `Element` instance from given plain object (i.e. parsed JSON string).\n\t * Converts `Element` children to proper nodes.\n\t *\n\t * @param json Plain object to be converted to `Element`.\n\t * @returns `Element` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any ): Element {\n\t\tlet children: Array<Node> | undefined;\n\n\t\tif ( json.children ) {\n\t\t\tchildren = [];\n\n\t\t\tfor ( const child of json.children ) {\n\t\t\t\tif ( child.name ) {\n\t\t\t\t\t// If child has name property, it is an Element.\n\t\t\t\t\tchildren.push( Element.fromJSON( child ) );\n\t\t\t\t} else {\n\t\t\t\t\t// Otherwise, it is a Text node.\n\t\t\t\t\tchildren.push( Text.fromJSON( child ) );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn new Element( json.name, json.attributes, children );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `<${ this.rootName || this.name }>`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelElement: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logExtended(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( `ModelElement: ${ this }, ${ this.childCount } children,\n\t// @if CK_DEBUG_ENGINE // \tattrs: ${ convertMapToStringifiedObject( this.getAttributes() ) }` );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logAll(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( '--------------------' );\n\n\t// @if CK_DEBUG_ENGINE // \tthis.logExtended();\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'List of children:' );\n\n\t// @if CK_DEBUG_ENGINE // \tfor ( const child of this.getChildren() as any ) {\n\t// @if CK_DEBUG_ENGINE // \t\tchild.log();\n\t// @if CK_DEBUG_ENGINE // \t}\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public printTree( level = 0 ): string {\n\t// @if CK_DEBUG_ENGINE // \tlet string = '';\n\n\t// @if CK_DEBUG_ENGINE // \tstring += '\\t'.repeat( level );\n\t// @if CK_DEBUG_ENGINE // \tstring += `<${ this.rootName || this.name }${ convertMapToTags( this.getAttributes() ) }>`;\n\n\t// @if CK_DEBUG_ENGINE // \tfor ( const child of this.getChildren() as any ) {\n\t// @if CK_DEBUG_ENGINE // \t\tstring += '\\n';\n\n\t// @if CK_DEBUG_ENGINE // \t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\tconst textAttrs = convertMapToTags( child._attrs );\n\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += '\\t'.repeat( level + 1 );\n\n\t// @if CK_DEBUG_ENGINE // \t\t\tif ( textAttrs !== '' ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\t\tstring += `<$text${ textAttrs }>` + child.data + '</$text>';\n\t// @if CK_DEBUG_ENGINE // \t\t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\t\tstring += child.data;\n\t// @if CK_DEBUG_ENGINE // \t\t\t}\n\t// @if CK_DEBUG_ENGINE // \t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += child.printTree( level + 1 );\n\t// @if CK_DEBUG_ENGINE // \t\t}\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tif ( this.childCount ) {\n\t// @if CK_DEBUG_ENGINE // \t\tstring += '\\n' + '\\t'.repeat( level );\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tstring += `</${ this.rootName || this.name }>`;\n\n\t// @if CK_DEBUG_ENGINE // \treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logTree(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'element' || type === 'model:element' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'node' || type === 'model:node';\n\t}\n\n\treturn name === this.name && ( type === 'element' || type === 'model:element' );\n};\n\n/**\n * Converts strings to Text and non-iterables to arrays.\n */\nfunction normalize( nodes: string | Item | Iterable<string | Item> ): Iterable<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( node.data, node.getAttributes() );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/treewalker\n */\n\nimport Element from './element';\nimport {\n\tdefault as Position,\n\tgetTextNodeAtPosition,\n\tgetNodeAfterPosition,\n\tgetNodeBeforePosition\n} from './position';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type DocumentFragment from './documentfragment';\nimport type Item from './item';\nimport type Range from './range';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Position iterator class. It allows to iterate forward and backward over the document.\n */\nexport default class TreeWalker implements Iterable<TreeWalkerValue> {\n\t/**\n\t * Walking direction. Defaults `'forward'`.\n\t */\n\tpublic readonly direction: TreeWalkerDirection;\n\n\t/**\n\t * Iterator boundaries.\n\t *\n\t * When the iterator is walking `'forward'` on the end of boundary or is walking `'backward'`\n\t * on the start of boundary, then `{ done: true }` is returned.\n\t *\n\t * If boundaries are not defined they are set before first and after last child of the root node.\n\t */\n\tpublic readonly boundaries: Range | null;\n\n\t/**\n\t * Flag indicating whether all consecutive characters with the same attributes should be\n\t * returned as one {@link module:engine/model/textproxy~TextProxy} (`true`) or one by one (`false`).\n\t */\n\tpublic readonly singleCharacters: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should enter elements or not. If the iterator is shallow child nodes of any\n\t * iterated node will not be returned along with `elementEnd` tag.\n\t */\n\tpublic readonly shallow: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should ignore `elementEnd` tags. If the option is true walker will not\n\t * return a parent node of the start position. If this option is `true` each {@link module:engine/model/element~Element} will\n\t * be returned once, while if the option is `false` they might be returned twice:\n\t * for `'elementStart'` and `'elementEnd'`.\n\t */\n\tpublic readonly ignoreElementEnd: boolean;\n\n\t/**\n\t * Iterator position. This is always static position, even if the initial position was a\n\t * {@link module:engine/model/liveposition~LivePosition live position}. If start position is not defined then position depends\n\t * on {@link #direction}. If direction is `'forward'` position starts form the beginning, when direction\n\t * is `'backward'` position starts from the end.\n\t */\n\tprivate _position: Position;\n\n\t/**\n\t * Start boundary cached for optimization purposes.\n\t */\n\tprivate _boundaryStartParent: Element | DocumentFragment | null;\n\n\t/**\n\t * End boundary cached for optimization purposes.\n\t */\n\tprivate _boundaryEndParent: Element | DocumentFragment | null;\n\n\t/**\n\t * Parent of the most recently visited node. Cached for optimization purposes.\n\t */\n\tprivate _visitedParent: Element | DocumentFragment;\n\n\t/**\n\t * Creates a range iterator. All parameters are optional, but you have to specify either `boundaries` or `startPosition`.\n\t *\n\t * @param options Object with configuration.\n\t */\n\tconstructor( options: TreeWalkerOptions ) {\n\t\tif ( !options || ( !options.boundaries && !options.startPosition ) ) {\n\t\t\t/**\n\t\t\t * Neither boundaries nor starting position of a `TreeWalker` have been defined.\n\t\t\t *\n\t\t\t * @error model-tree-walker-no-start-position\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-tree-walker-no-start-position',\n\t\t\t\tnull\n\t\t\t);\n\t\t}\n\n\t\tconst direction = options.direction || 'forward';\n\n\t\tif ( direction != 'forward' && direction != 'backward' ) {\n\t\t\t/**\n\t\t\t * Only `backward` and `forward` direction allowed.\n\t\t\t *\n\t\t\t * @error model-tree-walker-unknown-direction\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-tree-walker-unknown-direction', options, { direction } );\n\t\t}\n\n\t\tthis.direction = direction;\n\t\tthis.boundaries = options.boundaries || null;\n\n\t\tif ( options.startPosition ) {\n\t\t\tthis._position = options.startPosition.clone();\n\t\t} else {\n\t\t\tthis._position = Position._createAt( this.boundaries![ this.direction == 'backward' ? 'end' : 'start' ] );\n\t\t}\n\n\t\t// Reset position stickiness in case it was set to other value, as the stickiness is kept after cloning.\n\t\tthis.position.stickiness = 'toNone';\n\n\t\tthis.singleCharacters = !!options.singleCharacters;\n\t\tthis.shallow = !!options.shallow;\n\t\tthis.ignoreElementEnd = !!options.ignoreElementEnd;\n\n\t\tthis._boundaryStartParent = this.boundaries ? this.boundaries.start.parent : null;\n\t\tthis._boundaryEndParent = this.boundaries ? this.boundaries.end.parent : null;\n\t\tthis._visitedParent = this.position.parent;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * @returns {Iterable.<module:engine/model/treewalker~TreeWalkerValue>}\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Iterator position. This is always static position, even if the initial position was a\n\t * {@link module:engine/model/liveposition~LivePosition live position}. If start position is not defined then position depends\n\t * on {@link #direction}. If direction is `'forward'` position starts form the beginning, when direction\n\t * is `'backward'` position starts from the end.\n\t */\n\tpublic get position(): Position {\n\t\treturn this._position;\n\t}\n\n\t/**\n\t * Moves {@link #position} in the {@link #direction} skipping values as long as the callback function returns `true`.\n\t *\n\t * For example:\n\t *\n\t * ```ts\n\t * walker.skip( value => value.type == 'text' ); // <paragraph>[]foo</paragraph> -> <paragraph>foo[]</paragraph>\n\t * walker.skip( () => true ); // Move the position to the end: <paragraph>[]foo</paragraph> -> <paragraph>foo</paragraph>[]\n\t * walker.skip( () => false ); // Do not move the position.\n\t * ```\n\t *\n\t * @param skip Callback function. Gets {@link module:engine/model/treewalker~TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t */\n\tpublic skip( skip: ( value: TreeWalkerValue ) => boolean ): void {\n\t\tlet done, value, prevPosition, prevVisitedParent;\n\n\t\tdo {\n\t\t\tprevPosition = this.position;\n\t\t\tprevVisitedParent = this._visitedParent;\n\n\t\t\t( { done, value } = this.next() );\n\t\t} while ( !done && skip( value ) );\n\n\t\tif ( !done ) {\n\t\t\tthis._position = prevPosition;\n\t\t\tthis._visitedParent = prevVisitedParent;\n\t\t}\n\t}\n\n\t/**\n\t * Gets the next tree walker's value.\n\t */\n\tpublic next(): IteratorResult<TreeWalkerValue> {\n\t\tif ( this.direction == 'forward' ) {\n\t\t\treturn this._next();\n\t\t} else {\n\t\t\treturn this._previous();\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step forward in model. Moves the {@link #position} to the next position and returns the encountered value.\n\t */\n\tprivate _next(): IteratorResult<TreeWalkerValue> {\n\t\tconst previousPosition = this.position;\n\t\tconst position = this.position.clone();\n\t\tconst parent = this._visitedParent;\n\n\t\t// We are at the end of the root.\n\t\tif ( parent.parent === null && position.offset === parent.maxOffset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent === this._boundaryEndParent && position.offset == this.boundaries!.end.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just after the current position.\n\t\t// Use a highly optimized version instead of checking the text node first and then getting the node after. See #6582.\n\t\tconst textNodeAtPosition = getTextNodeAtPosition( position, parent );\n\t\tconst node = textNodeAtPosition ? textNodeAtPosition : getNodeAfterPosition( position, parent, textNodeAtPosition );\n\n\t\tif ( node instanceof Element ) {\n\t\t\tif ( !this.shallow ) {\n\t\t\t\t// Manual operations on path internals for optimization purposes. Here and in the rest of the method.\n\t\t\t\t( position.path as Array<number> ).push( 0 );\n\t\t\t\tthis._visitedParent = node;\n\t\t\t} else {\n\t\t\t\tposition.offset++;\n\t\t\t}\n\n\t\t\tthis._position = position;\n\n\t\t\treturn formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t} else if ( node instanceof Text ) {\n\t\t\tlet charactersCount;\n\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tcharactersCount = 1;\n\t\t\t} else {\n\t\t\t\tlet offset = node.endOffset!;\n\n\t\t\t\tif ( this._boundaryEndParent == parent && this.boundaries!.end.offset < offset ) {\n\t\t\t\t\toffset = this.boundaries!.end.offset;\n\t\t\t\t}\n\n\t\t\t\tcharactersCount = offset - position.offset;\n\t\t\t}\n\n\t\t\tconst offsetInTextNode = position.offset - node.startOffset!;\n\t\t\tconst item = new TextProxy( node, offsetInTextNode, charactersCount );\n\n\t\t\tposition.offset += charactersCount;\n\t\t\tthis._position = position;\n\n\t\t\treturn formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the end of current `parent`.\n\t\t\t( position.path as Array<number> ).pop();\n\t\t\tposition.offset++;\n\t\t\tthis._position = position;\n\t\t\tthis._visitedParent = parent.parent!;\n\n\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\treturn this._next();\n\t\t\t} else {\n\t\t\t\treturn formatReturnValue( 'elementEnd', parent as Element, previousPosition, position );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Makes a step backward in model. Moves the {@link #position} to the previous position and returns the encountered value.\n\t */\n\tprivate _previous(): IteratorResult<TreeWalkerValue> {\n\t\tconst previousPosition = this.position;\n\t\tconst position = this.position.clone();\n\t\tconst parent = this._visitedParent;\n\n\t\t// We are at the beginning of the root.\n\t\tif ( parent.parent === null && position.offset === 0 ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We reached the walker boundary.\n\t\tif ( parent == this._boundaryStartParent && position.offset == this.boundaries!.start.offset ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// Get node just before the current position.\n\t\t// Use a highly optimized version instead of checking the text node first and then getting the node before. See #6582.\n\t\tconst positionParent = position.parent;\n\t\tconst textNodeAtPosition = getTextNodeAtPosition( position, positionParent );\n\t\tconst node = textNodeAtPosition ? textNodeAtPosition : getNodeBeforePosition( position, positionParent, textNodeAtPosition );\n\n\t\tif ( node instanceof Element ) {\n\t\t\tposition.offset--;\n\n\t\t\tif ( !this.shallow ) {\n\t\t\t\t( position.path as Array<number> ).push( node.maxOffset );\n\t\t\t\tthis._position = position;\n\t\t\t\tthis._visitedParent = node;\n\n\t\t\t\tif ( this.ignoreElementEnd ) {\n\t\t\t\t\treturn this._previous();\n\t\t\t\t} else {\n\t\t\t\t\treturn formatReturnValue( 'elementEnd', node, previousPosition, position );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tthis._position = position;\n\n\t\t\t\treturn formatReturnValue( 'elementStart', node, previousPosition, position, 1 );\n\t\t\t}\n\t\t} else if ( node instanceof Text ) {\n\t\t\tlet charactersCount;\n\n\t\t\tif ( this.singleCharacters ) {\n\t\t\t\tcharactersCount = 1;\n\t\t\t} else {\n\t\t\t\tlet offset = node.startOffset!;\n\n\t\t\t\tif ( this._boundaryStartParent == parent && this.boundaries!.start.offset > offset ) {\n\t\t\t\t\toffset = this.boundaries!.start.offset;\n\t\t\t\t}\n\n\t\t\t\tcharactersCount = position.offset - offset;\n\t\t\t}\n\n\t\t\tconst offsetInTextNode = position.offset - node.startOffset!;\n\t\t\tconst item = new TextProxy( node, offsetInTextNode - charactersCount, charactersCount );\n\n\t\t\tposition.offset -= charactersCount;\n\t\t\tthis._position = position;\n\n\t\t\treturn formatReturnValue( 'text', item, previousPosition, position, charactersCount );\n\t\t} else {\n\t\t\t// `node` is not set, we reached the beginning of current `parent`.\n\t\t\t( position.path as Array<number> ).pop();\n\t\t\tthis._position = position;\n\t\t\tthis._visitedParent = parent.parent!;\n\n\t\t\treturn formatReturnValue( 'elementStart', parent as Element, previousPosition, position, 1 );\n\t\t}\n\t}\n}\n\nfunction formatReturnValue(\n\ttype: TreeWalkerValueType,\n\titem: Item,\n\tpreviousPosition: Position,\n\tnextPosition: Position,\n\tlength?: number\n): IteratorYieldResult<TreeWalkerValue> {\n\treturn {\n\t\tdone: false,\n\t\tvalue: {\n\t\t\ttype,\n\t\t\titem,\n\t\t\tpreviousPosition,\n\t\t\tnextPosition,\n\t\t\tlength\n\t\t}\n\t};\n}\n\n/**\n * Type of the step made by {@link module:engine/model/treewalker~TreeWalker}.\n * Possible values: `'elementStart'` if walker is at the beginning of a node, `'elementEnd'` if walker is at the end of node,\n * or `'text'` if walker traversed over text.\n */\nexport type TreeWalkerValueType = 'elementStart' | 'elementEnd' | 'text';\n\n/**\n * Object returned by {@link module:engine/model/treewalker~TreeWalker} when traversing tree model.\n */\nexport interface TreeWalkerValue {\n\ttype: TreeWalkerValueType;\n\n\t/**\n\t * Item between old and new positions of {@link module:engine/model/treewalker~TreeWalker}.\n\t */\n\titem: Item;\n\n\t/**\n\t * Previous position of the iterator.\n\t * * Forward iteration: For `'elementEnd'` it is the last position inside the element. For all other types it is the\n\t * position before the item.\n\t * * Backward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n\t * the position after item.\n\t */\n\tpreviousPosition: Position;\n\n\t/**\n\t * Next position of the iterator.\n\t * * Forward iteration: For `'elementStart'` it is the first position inside the element. For all other types it is\n\t * the position after the item.\n\t * * Backward iteration: For `'elementEnd'` it is last position inside element. For all other types it is the position\n\t * before the item.\n\t */\n\tnextPosition: Position;\n\n\t/**\n\t * Length of the item. For `'elementStart'` it is 1. For `'text'` it is the length of the text. For `'elementEnd'` it is `undefined`.\n\t */\n\tlength?: number;\n}\n\n/**\n * Tree walking direction.\n */\nexport type TreeWalkerDirection = 'forward' | 'backward';\n\n/**\n * The configuration of TreeWalker.\n *\n * All parameters are optional, but you have to specify either `boundaries` or `startPosition`.\n */\nexport interface TreeWalkerOptions {\n\n\t/**\n\t * Walking direction.\n\t *\n\t * @default 'forward'\n\t */\n\tdirection?: TreeWalkerDirection;\n\n\t/**\n\t * Range to define boundaries of the iterator.\n\t */\n\tboundaries?: Range | null;\n\n\t/**\n\t * Starting position.\n\t */\n\tstartPosition?: Position;\n\n\t/**\n\t * Flag indicating whether all consecutive characters with the same attributes\n\t * should be returned one by one as multiple {@link module:engine/model/textproxy~TextProxy} (`true`) objects or as one\n\t * {@link module:engine/model/textproxy~TextProxy} (`false`).\n\t */\n\tsingleCharacters?: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should enter elements or not. If the\n\t * iterator is shallow child nodes of any iterated node will not be returned along with `elementEnd` tag.\n\t */\n\tshallow?: boolean;\n\n\t/**\n\t * Flag indicating whether iterator should ignore `elementEnd` tags.\n\t * If the option is true walker will not return a parent node of start position. If this option is `true`\n\t * each {@link module:engine/model/element~Element} will be returned once, while if the option is `false` they might be returned\n\t * twice: for `'elementStart'` and `'elementEnd'`.\n\t */\n\tignoreElementEnd?: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/position\n */\n\nimport TypeCheckable from './typecheckable';\nimport TreeWalker, { type TreeWalkerOptions, type TreeWalkerValue } from './treewalker';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type InsertOperation from './operation/insertoperation';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Node from './node';\nimport type Operation from './operation/operation';\nimport type SplitOperation from './operation/splitoperation';\nimport type Text from './text';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\n// To check if component is loaded more than once.\nimport '@ckeditor/ckeditor5-utils/src/version';\n\n/**\n * Represents a position in the model tree.\n *\n * A position is represented by its {@link module:engine/model/position~Position#root} and\n * a {@link module:engine/model/position~Position#path} in that root.\n *\n * You can create position instances via its constructor or the `createPosition*()` factory methods of\n * {@link module:engine/model/model~Model} and {@link module:engine/model/writer~Writer}.\n *\n * **Note:** Position is based on offsets, not indexes. This means that a position between two text nodes\n * `foo` and `bar` has offset `3`, not `1`. See {@link module:engine/model/position~Position#path} for more information.\n *\n * Since a position in the model is represented by a {@link module:engine/model/position~Position#root position root} and\n * {@link module:engine/model/position~Position#path position path} it is possible to create positions placed in non-existing places.\n * This requirement is important for operational transformation algorithms.\n *\n * Also, {@link module:engine/model/operation/operation~Operation operations}\n * kept in the {@link module:engine/model/document~Document#history document history}\n * are storing positions (and ranges) which were correct when those operations were applied, but may not be correct\n * after the document has changed.\n *\n * When changes are applied to the model, it may also happen that {@link module:engine/model/position~Position#parent position parent}\n * will change even if position path has not changed. Keep in mind, that if a position leads to non-existing element,\n * {@link module:engine/model/position~Position#parent} and some other properties and methods will throw errors.\n *\n * In most cases, position with wrong path is caused by an error in code, but it is sometimes needed, as described above.\n */\nexport default class Position extends TypeCheckable {\n\t/**\n\t * Root of the position path.\n\t */\n\tpublic readonly root: Element | DocumentFragment;\n\n\t/**\n\t * Position of the node in the tree. **Path contains offsets, not indexes.**\n\t *\n\t * Position can be placed before, after or in a {@link module:engine/model/node~Node node} if that node has\n\t * {@link module:engine/model/node~Node#offsetSize} greater than `1`. Items in position path are\n\t * {@link module:engine/model/node~Node#startOffset starting offsets} of position ancestors, starting from direct root children,\n\t * down to the position offset in it's parent.\n\t *\n\t * ```\n\t * ROOT\n\t *  |- P            before: [ 0 ]         after: [ 1 ]\n\t *  |- UL           before: [ 1 ]         after: [ 2 ]\n\t *     |- LI        before: [ 1, 0 ]      after: [ 1, 1 ]\n\t *     |  |- foo    before: [ 1, 0, 0 ]   after: [ 1, 0, 3 ]\n\t *     |- LI        before: [ 1, 1 ]      after: [ 1, 2 ]\n\t *        |- bar    before: [ 1, 1, 0 ]   after: [ 1, 1, 3 ]\n\t * ```\n\t *\n\t * `foo` and `bar` are representing {@link module:engine/model/text~Text text nodes}. Since text nodes has offset size\n\t * greater than `1` you can place position offset between their start and end:\n\t *\n\t * ```\n\t * ROOT\n\t *  |- P\n\t *  |- UL\n\t *     |- LI\n\t *     |  |- f^o|o  ^ has path: [ 1, 0, 1 ]   | has path: [ 1, 0, 2 ]\n\t *     |- LI\n\t *        |- b^a|r  ^ has path: [ 1, 1, 1 ]   | has path: [ 1, 1, 2 ]\n\t * ```\n\t */\n\tpublic readonly path: ReadonlyArray<number>;\n\n\t/**\n\t * Position stickiness. See {@link module:engine/model/position~PositionStickiness}.\n\t */\n\tpublic stickiness: PositionStickiness;\n\n\t/**\n\t * Creates a position.\n\t *\n\t * @param root Root of the position.\n\t * @param path Position path. See {@link module:engine/model/position~Position#path}.\n\t * @param stickiness Position stickiness. See {@link module:engine/model/position~PositionStickiness}.\n\t */\n\tconstructor(\n\t\troot: Element | DocumentFragment,\n\t\tpath: ReadonlyArray<number>,\n\t\tstickiness: PositionStickiness = 'toNone'\n\t) {\n\t\tsuper();\n\n\t\tif ( !root.is( 'element' ) && !root.is( 'documentFragment' ) ) {\n\t\t\t/**\n\t\t\t * Position root is invalid.\n\t\t\t *\n\t\t\t * Positions can only be anchored in elements or document fragments.\n\t\t\t *\n\t\t\t * @error model-position-root-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-root-invalid',\n\t\t\t\troot\n\t\t\t);\n\t\t}\n\n\t\tif ( !( path instanceof Array ) || path.length === 0 ) {\n\t\t\t/**\n\t\t\t * Position path must be an array with at least one item.\n\t\t\t *\n\t\t\t * @error model-position-path-incorrect-format\n\t\t\t * @param path\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-path-incorrect-format',\n\t\t\t\troot,\n\t\t\t\t{ path }\n\t\t\t);\n\t\t}\n\n\t\t// Normalize the root and path when element (not root) is passed.\n\t\tif ( root.is( 'rootElement' ) ) {\n\t\t\tpath = path.slice();\n\t\t} else {\n\t\t\tpath = [ ...root.getPath(), ...path ];\n\t\t\troot = root.root as any;\n\t\t}\n\n\t\tthis.root = root;\n\t\tthis.path = path;\n\t\tthis.stickiness = stickiness;\n\t}\n\n\t/**\n\t * Offset at which this position is located in its {@link module:engine/model/position~Position#parent parent}. It is equal\n\t * to the last item in position {@link module:engine/model/position~Position#path path}.\n\t *\n\t * @type {Number}\n\t */\n\tpublic get offset(): number {\n\t\treturn this.path[ this.path.length - 1 ];\n\t}\n\n\tpublic set offset( newOffset: number ) {\n\t\t( this.path as Array<number> )[ this.path.length - 1 ] = newOffset;\n\t}\n\n\t/**\n\t * Parent element of this position.\n\t *\n\t * Keep in mind that `parent` value is calculated when the property is accessed.\n\t * If {@link module:engine/model/position~Position#path position path}\n\t * leads to a non-existing element, `parent` property will throw error.\n\t *\n\t * Also it is a good idea to cache `parent` property if it is used frequently in an algorithm (i.e. in a long loop).\n\t */\n\tpublic get parent(): Element | DocumentFragment {\n\t\tlet parent: any = this.root;\n\n\t\tfor ( let i = 0; i < this.path.length - 1; i++ ) {\n\t\t\tparent = parent.getChild( parent.offsetToIndex( this.path[ i ] ) );\n\n\t\t\tif ( !parent ) {\n\t\t\t\t/**\n\t\t\t\t * The position's path is incorrect. This means that a position does not point to\n\t\t\t\t * a correct place in the tree and hence, some of its methods and getters cannot work correctly.\n\t\t\t\t *\n\t\t\t\t * **Note**: Unlike DOM and view positions, in the model, the\n\t\t\t\t * {@link module:engine/model/position~Position#parent position's parent} is always an element or a document fragment.\n\t\t\t\t * The last offset in the {@link module:engine/model/position~Position#path position's path} is the point in this element\n\t\t\t\t * where this position points.\n\t\t\t\t *\n\t\t\t\t * Read more about model positions and offsets in\n\t\t\t\t * the {@glink framework/architecture/editing-engine#indexes-and-offsets Editing engine architecture} guide.\n\t\t\t\t *\n\t\t\t\t * @error model-position-path-incorrect\n\t\t\t\t * @param position The incorrect position.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-position-path-incorrect', this, { position: this } );\n\t\t\t}\n\t\t}\n\n\t\tif ( parent.is( '$text' ) ) {\n\t\t\tthrow new CKEditorError( 'model-position-path-incorrect', this, { position: this } );\n\t\t}\n\n\t\treturn parent;\n\t}\n\n\t/**\n\t * Position {@link module:engine/model/position~Position#offset offset} converted to an index in position's parent node. It is\n\t * equal to the {@link module:engine/model/node~Node#index index} of a node after this position. If position is placed\n\t * in text node, position index is equal to the index of that text node.\n\t */\n\tpublic get index(): number {\n\t\treturn this.parent.offsetToIndex( this.offset );\n\t}\n\n\t/**\n\t * Returns {@link module:engine/model/text~Text text node} instance in which this position is placed or `null` if this\n\t * position is not in a text node.\n\t */\n\tpublic get textNode(): Text | null {\n\t\treturn getTextNodeAtPosition( this, this.parent );\n\t}\n\n\t/**\n\t * Node directly after this position or `null` if this position is in text node.\n\t */\n\tpublic get nodeAfter(): Node | null {\n\t\t// Cache the parent and reuse for performance reasons. See #6579 and #6582.\n\t\tconst parent = this.parent;\n\n\t\treturn getNodeAfterPosition( this, parent, getTextNodeAtPosition( this, parent ) );\n\t}\n\n\t/**\n\t * Node directly before this position or `null` if this position is in text node.\n\t */\n\tpublic get nodeBefore(): Node | null {\n\t\t// Cache the parent and reuse for performance reasons. See #6579 and #6582.\n\t\tconst parent = this.parent;\n\n\t\treturn getNodeBeforePosition( this, parent, getTextNodeAtPosition( this, parent ) );\n\t}\n\n\t/**\n\t * Is `true` if position is at the beginning of its {@link module:engine/model/position~Position#parent parent}, `false` otherwise.\n\t */\n\tpublic get isAtStart(): boolean {\n\t\treturn this.offset === 0;\n\t}\n\n\t/**\n\t * Is `true` if position is at the end of its {@link module:engine/model/position~Position#parent parent}, `false` otherwise.\n\t */\n\tpublic get isAtEnd(): boolean {\n\t\treturn this.offset == this.parent.maxOffset;\n\t}\n\n\t/**\n\t * Checks whether this position is before or after given position.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t */\n\tpublic compareWith( otherPosition: Position ): PositionRelation {\n\t\tif ( this.root != otherPosition.root ) {\n\t\t\treturn 'different';\n\t\t}\n\n\t\tconst result = compareArrays( this.path, otherPosition.path );\n\n\t\tswitch ( result ) {\n\t\t\tcase 'same':\n\t\t\t\treturn 'same';\n\n\t\t\tcase 'prefix':\n\t\t\t\treturn 'before';\n\n\t\t\tcase 'extension':\n\t\t\t\treturn 'after';\n\n\t\t\tdefault:\n\t\t\t\treturn this.path[ result ] < otherPosition.path[ result ] ? 'before' : 'after';\n\t\t}\n\t}\n\n\t/**\n\t * Gets the farthest position which matches the callback using\n\t * {@link module:engine/model/treewalker~TreeWalker TreeWalker}.\n\t *\n\t * For example:\n\t *\n\t * ```ts\n\t * getLastMatchingPosition( value => value.type == 'text' );\n\t * // <paragraph>[]foo</paragraph> -> <paragraph>foo[]</paragraph>\n\t *\n\t * getLastMatchingPosition( value => value.type == 'text', { direction: 'backward' } );\n\t * // <paragraph>foo[]</paragraph> -> <paragraph>[]foo</paragraph>\n\t *\n\t * getLastMatchingPosition( value => false );\n\t * // Do not move the position.\n\t * ```\n\t *\n\t * @param skip Callback function. Gets {@link module:engine/model/treewalker~TreeWalkerValue} and should\n\t * return `true` if the value should be skipped or `false` if not.\n\t * @param options Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t *\n\t * @returns The position after the last item which matches the `skip` callback test.\n\t */\n\tpublic getLastMatchingPosition(\n\t\tskip: ( value: TreeWalkerValue ) => boolean,\n\t\toptions: TreeWalkerOptions = {}\n\t): Position {\n\t\toptions.startPosition = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\t\ttreeWalker.skip( skip );\n\n\t\treturn treeWalker.position;\n\t}\n\n\t/**\n\t * Returns a path to this position's parent. Parent path is equal to position {@link module:engine/model/position~Position#path path}\n\t * but without the last item.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @returns Path to the parent.\n\t */\n\tpublic getParentPath(): Array<number> {\n\t\treturn this.path.slice( 0, -1 );\n\t}\n\n\t/**\n\t * Returns ancestors array of this position, that is this position's parent and its ancestors.\n\t *\n\t * @returns Array with ancestors.\n\t */\n\tpublic getAncestors(): Array<Element | DocumentFragment> {\n\t\tconst parent = this.parent;\n\n\t\tif ( parent.is( 'documentFragment' ) ) {\n\t\t\treturn [ parent ];\n\t\t} else {\n\t\t\treturn parent.getAncestors( { includeSelf: true } ) as any;\n\t\t}\n\t}\n\n\t/**\n\t * Returns the parent element of the given name. Returns null if the position is not inside the desired parent.\n\t *\n\t * @param parentName The name of the parent element to find.\n\t */\n\tpublic findAncestor( parentName: string ): Element | null {\n\t\tconst parent = this.parent;\n\n\t\tif ( parent.is( 'element' ) ) {\n\t\t\treturn parent.findAncestor( parentName, { includeSelf: true } );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the slice of two position {@link #path paths} which is identical. The {@link #root roots}\n\t * of these two paths must be identical.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param position The second position.\n\t * @returns The common path.\n\t */\n\tpublic getCommonPath( position: Position ): Array<number> {\n\t\tif ( this.root != position.root ) {\n\t\t\treturn [];\n\t\t}\n\n\t\t// We find on which tree-level start and end have the lowest common ancestor\n\t\tconst cmp = compareArrays( this.path, position.path );\n\t\t// If comparison returned string it means that arrays are same.\n\t\tconst diffAt = ( typeof cmp == 'string' ) ? Math.min( this.path.length, position.path.length ) : cmp;\n\n\t\treturn this.path.slice( 0, diffAt );\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/model/element~Element} or {@link module:engine/model/documentfragment~DocumentFragment}\n\t * which is a common ancestor of both positions. The {@link #root roots} of these two positions must be identical.\n\t *\n\t * @param position The second position.\n\t */\n\tpublic getCommonAncestor( position: Position ): Element | DocumentFragment | null {\n\t\tconst ancestorsA = this.getAncestors();\n\t\tconst ancestorsB = position.getAncestors();\n\n\t\tlet i = 0;\n\n\t\twhile ( ancestorsA[ i ] == ancestorsB[ i ] && ancestorsA[ i ] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i === 0 ? null : ancestorsA[ i - 1 ];\n\t}\n\n\t/**\n\t * Returns a new instance of `Position`, that has same {@link #parent parent} but it's offset\n\t * is shifted by `shift` value (can be a negative value).\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param shift Offset shift. Can be a negative value.\n\t * @returns Shifted position.\n\t */\n\tpublic getShiftedBy( shift: number ): Position {\n\t\tconst shifted = this.clone();\n\n\t\tconst offset = shifted.offset + shift;\n\t\tshifted.offset = offset < 0 ? 0 : offset;\n\n\t\treturn shifted;\n\t}\n\n\t/**\n\t * Checks whether this position is after given position.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @see module:engine/model/position~Position#isBefore\n\t * @param  otherPosition Position to compare with.\n\t * @returns True if this position is after given position.\n\t */\n\tpublic isAfter( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'after';\n\t}\n\n\t/**\n\t * Checks whether this position is before given position.\n\t *\n\t * **Note:** watch out when using negation of the value returned by this method, because the negation will also\n\t * be `true` if positions are in different roots and you might not expect this. You should probably use\n\t * `a.isAfter( b ) || a.isEqual( b )` or `!a.isBefore( p ) && a.root == b.root` in most scenarios. If your\n\t * condition uses multiple `isAfter` and `isBefore` checks, build them so they do not use negated values, i.e.:\n\t *\n\t * ```ts\n\t * if ( a.isBefore( b ) && c.isAfter( d ) ) {\n\t * \t// do A.\n\t * } else {\n\t * \t// do B.\n\t * }\n\t * ```\n\t *\n\t * or, if you have only one if-branch:\n\t *\n\t * ```ts\n\t * if ( !( a.isBefore( b ) && c.isAfter( d ) ) {\n\t * \t// do B.\n\t * }\n\t * ```\n\t *\n\t * rather than:\n\t *\n\t * ```ts\n\t * if ( !a.isBefore( b ) || && !c.isAfter( d ) ) {\n\t * \t// do B.\n\t * } else {\n\t * \t// do A.\n\t * }\n\t * ```\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param otherPosition Position to compare with.\n\t * @returns True if this position is before given position.\n\t */\n\tpublic isBefore( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'before';\n\t}\n\n\t/**\n\t * Checks whether this position is equal to given position.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param otherPosition Position to compare with.\n\t * @returns True if positions are same.\n\t */\n\tpublic isEqual( otherPosition: Position ): boolean {\n\t\treturn this.compareWith( otherPosition ) == 'same';\n\t}\n\n\t/**\n\t * Checks whether this position is touching given position. Positions touch when there are no text nodes\n\t * or empty nodes in a range between them. Technically, those positions are not equal but in many cases\n\t * they are very similar or even indistinguishable.\n\t *\n\t * @param otherPosition Position to compare with.\n\t * @returns True if positions touch.\n\t */\n\tpublic isTouching( otherPosition: Position ): boolean {\n\t\tif ( this.root !== otherPosition.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst commonLevel = Math.min( this.path.length, otherPosition.path.length );\n\n\t\tfor ( let level = 0; level < commonLevel; level++ ) {\n\t\t\tconst diff = this.path[ level ] - otherPosition.path[ level ];\n\n\t\t\t// Positions are spread by a node, so they are not touching.\n\t\t\tif ( diff < -1 || diff > 1 ) {\n\t\t\t\treturn false;\n\t\t\t} else if ( diff === 1 ) {\n\t\t\t\t// `otherPosition` is on the left.\n\t\t\t\t// `this` is on the right.\n\t\t\t\treturn checkTouchingBranch( otherPosition, this, level );\n\t\t\t} else if ( diff === -1 ) {\n\t\t\t\t// `this` is on the left.\n\t\t\t\t// `otherPosition` is on the right.\n\t\t\t\treturn checkTouchingBranch( this, otherPosition, level );\n\t\t\t}\n\t\t\t// `diff === 0`.\n\t\t\t// Positions are inside the same element on this level, compare deeper.\n\t\t}\n\n\t\t// If we ended up here, it means that positions paths have the same beginning.\n\t\t// If the paths have the same length, then it means that they are identical, so the positions are same.\n\t\tif ( this.path.length === otherPosition.path.length ) {\n\t\t\treturn true;\n\t\t}\n\t\t// If positions have different length of paths, then the common part is the same.\n\t\t// In this case, the \"shorter\" position is on the left, the \"longer\" position is on the right.\n\t\t//\n\t\t// If the positions are touching, the \"longer\" position must have only zeroes. For example:\n\t\t// [ 1, 2 ] vs [ 1, 2, 0 ]\n\t\t// [ 1, 2 ] vs [ 1, 2, 0, 0, 0 ]\n\t\telse if ( this.path.length > otherPosition.path.length ) {\n\t\t\treturn checkOnlyZeroes( this.path, commonLevel );\n\t\t} else {\n\t\t\treturn checkOnlyZeroes( otherPosition.path, commonLevel );\n\t\t}\n\t}\n\n\t/**\n\t * Checks if two positions are in the same parent.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param position Position to compare with.\n\t * @returns `true` if positions have the same parent, `false` otherwise.\n\t */\n\tpublic hasSameParentAs( position: Position ): boolean {\n\t\tif ( this.root !== position.root ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst thisParentPath = this.getParentPath();\n\t\tconst posParentPath = position.getParentPath();\n\n\t\treturn compareArrays( thisParentPath, posParentPath ) == 'same';\n\t}\n\n\t/**\n\t * Returns a copy of this position that is transformed by given `operation`.\n\t *\n\t * The new position's parameters are updated accordingly to the effect of the `operation`.\n\t *\n\t * For example, if `n` nodes are inserted before the position, the returned position {@link ~Position#offset} will be\n\t * increased by `n`. If the position was in a merged element, it will be accordingly moved to the new element, etc.\n\t *\n\t * This method is safe to use it on non-existing positions (for example during operational transformation).\n\t *\n\t * @param operation Operation to transform by.\n\t * @returns Transformed position.\n\t */\n\tpublic getTransformedByOperation( operation: Operation ): Position {\n\t\tlet result;\n\n\t\tswitch ( operation.type ) {\n\t\t\tcase 'insert':\n\t\t\t\tresult = this._getTransformedByInsertOperation( operation as InsertOperation );\n\t\t\t\tbreak;\n\t\t\tcase 'move':\n\t\t\tcase 'remove':\n\t\t\tcase 'reinsert':\n\t\t\t\tresult = this._getTransformedByMoveOperation( operation as MoveOperation );\n\t\t\t\tbreak;\n\t\t\tcase 'split':\n\t\t\t\tresult = this._getTransformedBySplitOperation( operation as SplitOperation );\n\t\t\t\tbreak;\n\t\t\tcase 'merge':\n\t\t\t\tresult = this._getTransformedByMergeOperation( operation as MergeOperation );\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\tresult = Position._createAt( this );\n\t\t\t\tbreak;\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by an insert operation.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedByInsertOperation( operation: InsertOperation ): Position {\n\t\treturn this._getTransformedByInsertion( operation.position, operation.howMany );\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by a move operation.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedByMoveOperation( operation: MoveOperation ): Position {\n\t\treturn this._getTransformedByMove( operation.sourcePosition, operation.targetPosition, operation.howMany );\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by a split operation.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedBySplitOperation( operation: SplitOperation ): Position {\n\t\tconst movedRange = operation.movedRange;\n\n\t\tconst isContained = movedRange.containsPosition( this ) ||\n\t\t\t( movedRange.start.isEqual( this ) && this.stickiness == 'toNext' );\n\n\t\tif ( isContained ) {\n\t\t\treturn this._getCombined( operation.splitPosition, operation.moveTargetPosition );\n\t\t} else {\n\t\t\tif ( operation.graveyardPosition ) {\n\t\t\t\treturn this._getTransformedByMove( operation.graveyardPosition, operation.insertionPosition, 1 );\n\t\t\t} else {\n\t\t\t\treturn this._getTransformedByInsertion( operation.insertionPosition, 1 );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns a copy of this position transformed by merge operation.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedByMergeOperation( operation: MergeOperation ): Position {\n\t\tconst movedRange = operation.movedRange;\n\t\tconst isContained = movedRange.containsPosition( this ) || movedRange.start.isEqual( this );\n\n\t\tlet pos;\n\n\t\tif ( isContained ) {\n\t\t\tpos = this._getCombined( operation.sourcePosition, operation.targetPosition );\n\n\t\t\tif ( operation.sourcePosition.isBefore( operation.targetPosition ) ) {\n\t\t\t\t// Above happens during OT when the merged element is moved before the merged-to element.\n\t\t\t\tpos = pos._getTransformedByDeletion( operation.deletionPosition, 1 )!;\n\t\t\t}\n\t\t} else if ( this.isEqual( operation.deletionPosition ) ) {\n\t\t\tpos = Position._createAt( operation.deletionPosition );\n\t\t} else {\n\t\t\tpos = this._getTransformedByMove( operation.deletionPosition, operation.graveyardPosition, 1 );\n\t\t}\n\n\t\treturn pos;\n\t}\n\n\t/**\n\t * Returns a copy of this position that is updated by removing `howMany` nodes starting from `deletePosition`.\n\t * It may happen that this position is in a removed node. If that is the case, `null` is returned instead.\n\t *\n\t * @internal\n\t * @param deletePosition Position before the first removed node.\n\t * @param howMany How many nodes are removed.\n\t * @returns Transformed position or `null`.\n\t */\n\tpublic _getTransformedByDeletion( deletePosition: Position, howMany: number ): Position | null {\n\t\tconst transformed = Position._createAt( this );\n\n\t\t// This position can't be affected if deletion was in a different root.\n\t\tif ( this.root != deletePosition.root ) {\n\t\t\treturn transformed;\n\t\t}\n\n\t\tif ( compareArrays( deletePosition.getParentPath(), this.getParentPath() ) == 'same' ) {\n\t\t\t// If nodes are removed from the node that is pointed by this position...\n\t\t\tif ( deletePosition.offset < this.offset ) {\n\t\t\t\t// And are removed from before an offset of that position...\n\t\t\t\tif ( deletePosition.offset + howMany > this.offset ) {\n\t\t\t\t\t// Position is in removed range, it's no longer in the tree.\n\t\t\t\t\treturn null;\n\t\t\t\t} else {\n\t\t\t\t\t// Decrement the offset accordingly.\n\t\t\t\t\ttransformed.offset -= howMany;\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( compareArrays( deletePosition.getParentPath(), this.getParentPath() ) == 'prefix' ) {\n\t\t\t// If nodes are removed from a node that is on a path to this position...\n\t\t\tconst i = deletePosition.path.length - 1;\n\n\t\t\tif ( deletePosition.offset <= this.path[ i ] ) {\n\t\t\t\t// And are removed from before next node of that path...\n\t\t\t\tif ( deletePosition.offset + howMany > this.path[ i ] ) {\n\t\t\t\t\t// If the next node of that path is removed return null\n\t\t\t\t\t// because the node containing this position got removed.\n\t\t\t\t\treturn null;\n\t\t\t\t} else {\n\t\t\t\t\t// Otherwise, decrement index on that path.\n\t\t\t\t\t( transformed.path as Array<number> )[ i ] -= howMany;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn transformed;\n\t}\n\n\t/**\n\t * Returns a copy of this position that is updated by inserting `howMany` nodes at `insertPosition`.\n\t *\n\t * @internal\n\t * @param insertPosition Position where nodes are inserted.\n\t * @param howMany How many nodes are inserted.\n\t * @returns Transformed position.\n\t */\n\tpublic _getTransformedByInsertion( insertPosition: Position, howMany: number ): Position {\n\t\tconst transformed = Position._createAt( this );\n\n\t\t// This position can't be affected if insertion was in a different root.\n\t\tif ( this.root != insertPosition.root ) {\n\t\t\treturn transformed;\n\t\t}\n\n\t\tif ( compareArrays( insertPosition.getParentPath(), this.getParentPath() ) == 'same' ) {\n\t\t\t// If nodes are inserted in the node that is pointed by this position...\n\t\t\tif ( insertPosition.offset < this.offset || ( insertPosition.offset == this.offset && this.stickiness != 'toPrevious' ) ) {\n\t\t\t\t// And are inserted before an offset of that position...\n\t\t\t\t// \"Push\" this positions offset.\n\t\t\t\ttransformed.offset += howMany;\n\t\t\t}\n\t\t} else if ( compareArrays( insertPosition.getParentPath(), this.getParentPath() ) == 'prefix' ) {\n\t\t\t// If nodes are inserted in a node that is on a path to this position...\n\t\t\tconst i = insertPosition.path.length - 1;\n\n\t\t\tif ( insertPosition.offset <= this.path[ i ] ) {\n\t\t\t\t// And are inserted before next node of that path...\n\t\t\t\t// \"Push\" the index on that path.\n\t\t\t\t( transformed.path as Array<number> )[ i ] += howMany;\n\t\t\t}\n\t\t}\n\n\t\treturn transformed;\n\t}\n\n\t/**\n\t * Returns a copy of this position that is updated by moving `howMany` nodes from `sourcePosition` to `targetPosition`.\n\t *\n\t * @internal\n\t * @param sourcePosition Position before the first element to move.\n\t * @param targetPosition Position where moved elements will be inserted.\n\t * @param howMany How many consecutive nodes to move, starting from `sourcePosition`.\n\t * @returns Transformed position.\n\t */\n\tpublic _getTransformedByMove( sourcePosition: Position, targetPosition: Position, howMany: number ): Position {\n\t\t// Update target position, as it could be affected by nodes removal.\n\t\ttargetPosition = targetPosition._getTransformedByDeletion( sourcePosition, howMany )!;\n\n\t\tif ( sourcePosition.isEqual( targetPosition ) ) {\n\t\t\t// If `targetPosition` is equal to `sourcePosition` this isn't really any move. Just return position as it is.\n\t\t\treturn Position._createAt( this );\n\t\t}\n\n\t\t// Moving a range removes nodes from their original position. We acknowledge this by proper transformation.\n\t\tconst transformed = this._getTransformedByDeletion( sourcePosition, howMany );\n\n\t\tconst isMoved = transformed === null ||\n\t\t\t( sourcePosition.isEqual( this ) && this.stickiness == 'toNext' ) ||\n\t\t\t( sourcePosition.getShiftedBy( howMany ).isEqual( this ) && this.stickiness == 'toPrevious' );\n\n\t\tif ( isMoved ) {\n\t\t\t// This position is inside moved range (or sticks to it).\n\t\t\t// In this case, we calculate a combination of this position, move source position and target position.\n\t\t\treturn this._getCombined( sourcePosition, targetPosition );\n\t\t} else {\n\t\t\t// This position is not inside a removed range.\n\t\t\t//\n\t\t\t// In next step, we simply reflect inserting `howMany` nodes, which might further affect the position.\n\t\t\treturn transformed._getTransformedByInsertion( targetPosition, howMany );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a new position that is a combination of this position and given positions.\n\t *\n\t * The combined position is a copy of this position transformed by moving a range starting at `source` position\n\t * to the `target` position. It is expected that this position is inside the moved range.\n\t *\n\t * Example:\n\t *\n\t * ```ts\n\t * let original = model.createPositionFromPath( root, [ 2, 3, 1 ] );\n\t * let source = model.createPositionFromPath( root, [ 2, 2 ] );\n\t * let target = model.createPositionFromPath( otherRoot, [ 1, 1, 3 ] );\n\t * original._getCombined( source, target ); // path is [ 1, 1, 4, 1 ], root is `otherRoot`\n\t * ```\n\t *\n\t * Explanation:\n\t *\n\t * We have a position `[ 2, 3, 1 ]` and move some nodes from `[ 2, 2 ]` to `[ 1, 1, 3 ]`. The original position\n\t * was inside moved nodes and now should point to the new place. The moved nodes will be after\n\t * positions `[ 1, 1, 3 ]`, `[ 1, 1, 4 ]`, `[ 1, 1, 5 ]`. Since our position was in the second moved node,\n\t * the transformed position will be in a sub-tree of a node at `[ 1, 1, 4 ]`. Looking at original path, we\n\t * took care of `[ 2, 3 ]` part of it. Now we have to add the rest of the original path to the transformed path.\n\t * Finally, the transformed position will point to `[ 1, 1, 4, 1 ]`.\n\t *\n\t * @internal\n\t * @param source Beginning of the moved range.\n\t * @param target Position where the range is moved.\n\t * @returns Combined position.\n\t */\n\tpublic _getCombined( source: Position, target: Position ): Position {\n\t\tconst i = source.path.length - 1;\n\n\t\t// The first part of a path to combined position is a path to the place where nodes were moved.\n\t\tconst combined = Position._createAt( target );\n\t\tcombined.stickiness = this.stickiness;\n\n\t\t// Then we have to update the rest of the path.\n\n\t\t// Fix the offset because this position might be after `from` position and we have to reflect that.\n\t\tcombined.offset = combined.offset + this.path[ i ] - source.offset;\n\n\t\t// Then, add the rest of the path.\n\t\t// If this position is at the same level as `from` position nothing will get added.\n\t\t( combined as any ).path = [ ...combined.path, ...this.path.slice( i + 1 ) ];\n\n\t\treturn combined;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic toJSON(): unknown {\n\t\treturn {\n\t\t\troot: this.root.toJSON(),\n\t\t\tpath: Array.from( this.path ),\n\t\t\tstickiness: this.stickiness\n\t\t};\n\t}\n\n\t/**\n\t * Returns a new position that is equal to current position.\n\t */\n\tpublic clone(): this {\n\t\treturn new ( this.constructor as any )( this.root, this.path, this.stickiness );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/model/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/model/item~Item model item} and `'before'` or `'after'` (sets position before or after given model item).\n\t *\n\t * This method is a shortcut to other factory methods such as:\n\t *\n\t * * {@link module:engine/model/position~Position._createBefore},\n\t * * {@link module:engine/model/position~Position._createAfter}.\n\t *\n\t * @internal\n\t * @param offset Offset or one of the flags. Used only when the first parameter is a {@link module:engine/model/item~Item model item}.\n\t * @param stickiness Position stickiness. Used only when the first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic static _createAt(\n\t\titemOrPosition: Item | Position | DocumentFragment,\n\t\toffset?: PositionOffset,\n\t\tstickiness: PositionStickiness = 'toNone'\n\t): Position {\n\t\tif ( itemOrPosition instanceof Position ) {\n\t\t\treturn new Position( itemOrPosition.root, itemOrPosition.path, itemOrPosition.stickiness );\n\t\t} else {\n\t\t\tconst node = itemOrPosition;\n\n\t\t\tif ( offset == 'end' ) {\n\t\t\t\toffset = ( node as any ).maxOffset;\n\t\t\t} else if ( offset == 'before' ) {\n\t\t\t\treturn this._createBefore( node, stickiness );\n\t\t\t} else if ( offset == 'after' ) {\n\t\t\t\treturn this._createAfter( node, stickiness );\n\t\t\t} else if ( offset !== 0 && !offset ) {\n\t\t\t\t/**\n\t\t\t\t * {@link module:engine/model/model~Model#createPositionAt `Model#createPositionAt()`}\n\t\t\t\t * requires the offset to be specified when the first parameter is a model item.\n\t\t\t\t *\n\t\t\t\t * @error model-createpositionat-offset-required\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-createpositionat-offset-required', [ this, itemOrPosition ] );\n\t\t\t}\n\n\t\t\tif ( !node.is( 'element' ) && !node.is( 'documentFragment' ) ) {\n\t\t\t\t/**\n\t\t\t\t * Position parent have to be a model element or model document fragment.\n\t\t\t\t *\n\t\t\t\t * @error model-position-parent-incorrect\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'model-position-parent-incorrect',\n\t\t\t\t\t[ this, itemOrPosition ]\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tconst path = node.getPath();\n\n\t\t\tpath.push( offset as any );\n\n\t\t\treturn new this( node.root as any, path, stickiness );\n\t\t}\n\t}\n\n\t/**\n\t * Creates a new position, after given {@link module:engine/model/item~Item model item}.\n\t *\n\t * @internal\n\t * @param item Item after which the position should be placed.\n\t * @param stickiness Position stickiness.\n\t */\n\tpublic static _createAfter( item: Item | DocumentFragment, stickiness?: PositionStickiness ): Position {\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You can not make a position after a root element.\n\t\t\t *\n\t\t\t * @error model-position-after-root\n\t\t\t * @param root\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-after-root',\n\t\t\t\t[ this, item ],\n\t\t\t\t{ root: item }\n\t\t\t);\n\t\t}\n\n\t\treturn this._createAt( item.parent, item.endOffset!, stickiness );\n\t}\n\n\t/**\n\t * Creates a new position, before the given {@link module:engine/model/item~Item model item}.\n\t *\n\t * @internal\n\t * @param item Item before which the position should be placed.\n\t * @param stickiness Position stickiness.\n\t */\n\tpublic static _createBefore( item: Item | DocumentFragment, stickiness?: PositionStickiness ): Position {\n\t\tif ( !item.parent ) {\n\t\t\t/**\n\t\t\t * You can not make a position before a root element.\n\t\t\t *\n\t\t\t * @error model-position-before-root\n\t\t\t * @param root\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-before-root',\n\t\t\t\titem,\n\t\t\t\t{ root: item }\n\t\t\t);\n\t\t}\n\n\t\treturn this._createAt( item.parent, item.startOffset!, stickiness );\n\t}\n\n\t/**\n\t * Creates a `Position` instance from given plain object (i.e. parsed JSON string).\n\t *\n\t * @param json Plain object to be converted to `Position`.\n\t * @param doc Document object that will be position owner.\n\t * @returns `Position` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any, doc: Document ): Position {\n\t\tif ( json.root === '$graveyard' ) {\n\t\t\tconst pos = new Position( doc.graveyard, json.path );\n\t\t\tpos.stickiness = json.stickiness;\n\n\t\t\treturn pos;\n\t\t}\n\n\t\tif ( !doc.getRoot( json.root ) ) {\n\t\t\t/**\n\t\t\t * Cannot create position for document. Root with specified name does not exist.\n\t\t\t *\n\t\t\t * @error model-position-fromjson-no-root\n\t\t\t * @param rootName\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'model-position-fromjson-no-root',\n\t\t\t\tdoc,\n\t\t\t\t{ rootName: json.root }\n\t\t\t);\n\t\t}\n\n\t\treturn new Position( doc.getRoot( json.root )!, json.path, json.stickiness );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `${ this.root } [ ${ this.path.join( ', ' ) } ]`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelPosition: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nPosition.prototype.is = function( type: string ): boolean {\n\treturn type === 'position' || type === 'model:position';\n};\n\n/**\n * A flag indicating whether this position is `'before'` or `'after'` or `'same'` as given position.\n * If positions are in different roots `'different'` flag is returned.\n */\nexport type PositionRelation = 'before' | 'after' | 'same' | 'different';\n\n/**\n * Offset or one of the flags.\n */\nexport type PositionOffset = number | 'before' | 'after' | 'end';\n\n/**\n * Represents how position is \"sticking\" with neighbour nodes. Used to define how position should be transformed (moved)\n * in edge cases. Possible values: `'toNone'`, `'toNext'`, `'toPrevious'`.\n *\n * Examples:\n *\n * ```\n * Insert. Position is at | and nodes are inserted at the same position, marked as ^:\n *\n * - sticks to none:           <p>f^|oo</p>  ->  <p>fbar|oo</p>\n * - sticks to next node:      <p>f^|oo</p>  ->  <p>fbar|oo</p>\n * - sticks to previous node:  <p>f|^oo</p>  ->  <p>f|baroo</p>\n * ```\n *\n *\n * Move. Position is at | and range [oo] is moved to position ^:\n *\n * ```\n * - sticks to none:           <p>f|[oo]</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n * - sticks to none:           <p>f[oo]|</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n *\n * - sticks to next node:      <p>f|[oo]</p><p>b^ar</p>  ->  <p>f</p><p>b|ooar</p>\n * - sticks to next node:      <p>f[oo]|</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n *\n * - sticks to previous node:  <p>f|[oo]</p><p>b^ar</p>  ->  <p>f|</p><p>booar</p>\n * - sticks to previous node:  <p>f[oo]|</p><p>b^ar</p>  ->  <p>f</p><p>boo|ar</p>\n * ```\n */\nexport type PositionStickiness = 'toNone' | 'toNext' | 'toPrevious';\n\n/**\n * Returns a text node at the given position.\n *\n * This is a helper function optimized to reuse the position parent instance for performance reasons.\n *\n * Normally, you should use {@link module:engine/model/position~Position#textNode `Position#textNode`}.\n * If you start hitting performance issues with {@link module:engine/model/position~Position#parent `Position#parent`}\n * check if your algorithm does not access it multiple times (which can happen directly or indirectly via other position properties).\n *\n * See https://github.com/ckeditor/ckeditor5/issues/6579.\n *\n * See also:\n *\n * * {@link module:engine/model/position~getNodeAfterPosition}\n * * {@link module:engine/model/position~getNodeBeforePosition}\n *\n * @param positionParent The parent of the given position.\n */\nexport function getTextNodeAtPosition( position: Position, positionParent: Element | DocumentFragment ): Text | null {\n\tconst node = positionParent.getChild( positionParent.offsetToIndex( position.offset ) );\n\n\tif ( node && node.is( '$text' ) && node.startOffset! < position.offset ) {\n\t\treturn node;\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns the node after the given position.\n *\n * This is a helper function optimized to reuse the position parent instance and the calculation of the text node at the\n * specific position for performance reasons.\n *\n * Normally, you should use {@link module:engine/model/position~Position#nodeAfter `Position#nodeAfter`}.\n * If you start hitting performance issues with {@link module:engine/model/position~Position#parent `Position#parent`} and/or\n * {@link module:engine/model/position~Position#textNode `Position#textNode`}\n * check if your algorithm does not access those properties multiple times\n * (which can happen directly or indirectly via other position properties).\n *\n * See https://github.com/ckeditor/ckeditor5/issues/6579 and https://github.com/ckeditor/ckeditor5/issues/6582.\n *\n * See also:\n *\n * * {@link module:engine/model/position~getTextNodeAtPosition}\n * * {@link module:engine/model/position~getNodeBeforePosition}\n *\n * @param positionParent The parent of the given position.\n * @param textNode Text node at the given position.\n */\nexport function getNodeAfterPosition(\n\tposition: Position,\n\tpositionParent: Element | DocumentFragment,\n\ttextNode: Text | null\n): Node | null {\n\tif ( textNode !== null ) {\n\t\treturn null;\n\t}\n\n\treturn positionParent.getChild( positionParent.offsetToIndex( position.offset ) );\n}\n\n/**\n * Returns the node before the given position.\n *\n * Refer to {@link module:engine/model/position~getNodeBeforePosition} for documentation on when to use this util method.\n *\n * See also:\n *\n * * {@link module:engine/model/position~getTextNodeAtPosition}\n * * {@link module:engine/model/position~getNodeAfterPosition}\n *\n * @param positionParent The parent of the given position.\n * @param textNode Text node at the given position.\n */\nexport function getNodeBeforePosition(\n\tposition: Position,\n\tpositionParent: Element | DocumentFragment,\n\ttextNode: Text | null\n): Node | null {\n\tif ( textNode !== null ) {\n\t\treturn null;\n\t}\n\n\treturn positionParent.getChild( positionParent.offsetToIndex( position.offset ) - 1 );\n}\n\n/**\n * This is a helper function for `Position#isTouching()`.\n *\n * It checks whether to given positions are touching, considering that they have the same root and paths\n * until given level, and at given level they differ by 1 (so they are branching at `level` point).\n *\n * The exact requirements for touching positions are described in `Position#isTouching()` and also\n * in the body of this function.\n *\n * @param left Position \"on the left\" (it is before `right`).\n * @param right Position \"on the right\" (it is after `left`).\n * @param level Level on which the positions are different.\n */\nfunction checkTouchingBranch( left: Position, right: Position, level: number ): boolean {\n\tif ( level + 1 === left.path.length ) {\n\t\t// Left position does not have any more entries after the point where the positions differ.\n\t\t// [ 2 ] vs [ 3 ]\n\t\t// [ 2 ] vs [ 3, 0, 0 ]\n\t\t// The positions are spread by node at [ 2 ].\n\t\treturn false;\n\t}\n\n\tif ( !checkOnlyZeroes( right.path, level + 1 ) ) {\n\t\t// Right position does not have only zeroes, so we have situation like:\n\t\t// [ 2, maxOffset ] vs [ 3, 1 ]\n\t\t// [ 2, maxOffset ] vs [ 3, 1, 0, 0 ]\n\t\t// The positions are spread by node at [ 3, 0 ].\n\t\treturn false;\n\t}\n\n\tif ( !checkOnlyMaxOffset( left, level + 1 ) ) {\n\t\t// Left position does not have only max offsets, so we have situation like:\n\t\t// [ 2, 4 ] vs [ 3 ]\n\t\t// [ 2, 4 ] vs [ 3, 0, 0 ]\n\t\t// The positions are spread by node at [ 2, 5 ].\n\t\treturn false;\n\t}\n\n\t// Left position has only max offsets and right position has only zeroes or nothing.\n\t// [ 2, maxOffset ] vs [ 3 ]\n\t// [ 2, maxOffset, maxOffset ] vs [ 3, 0 ]\n\t// There are not elements between positions. The positions are touching.\n\treturn true;\n}\n\n/**\n * Checks whether for given array, starting from given index until the end of the array, all items are `0`s.\n *\n * This is a helper function for `Position#isTouching()`.\n */\nfunction checkOnlyZeroes( arr: ReadonlyArray<number>, idx: number ): boolean {\n\twhile ( idx < arr.length ) {\n\t\tif ( arr[ idx ] !== 0 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tidx++;\n\t}\n\n\treturn true;\n}\n\n/**\n * Checks whether for given position, starting from given path level, whether the position is at the end of\n * its parent and whether each element on the path to the position is also at at the end of its parent.\n *\n * This is a helper function for `Position#isTouching()`.\n */\nfunction checkOnlyMaxOffset( pos: Position, level: number ): boolean {\n\tlet parent = pos.parent;\n\tlet idx = pos.path.length - 1;\n\tlet add = 0;\n\n\twhile ( idx >= level ) {\n\t\tif ( pos.path[ idx ] + add !== parent.maxOffset ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// After the first check, we \"go up\", and check whether the position's parent-parent is the last element.\n\t\t// However, we need to add 1 to the value in the path to \"simulate\" moving the path after the parent.\n\t\t// It happens just once.\n\t\tadd = 1;\n\t\tidx--;\n\t\tparent = parent.parent!;\n\t}\n\n\treturn true;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/range\n */\n\nimport TypeCheckable from './typecheckable';\nimport Position from './position';\nimport TreeWalker, { type TreeWalkerOptions, type TreeWalkerValue } from './treewalker';\n\nimport type Document from './document';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type InsertOperation from './operation/insertoperation';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Operation from './operation/operation';\nimport type SplitOperation from './operation/splitoperation';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Represents a range in the model tree.\n *\n * A range is defined by its {@link module:engine/model/range~Range#start} and {@link module:engine/model/range~Range#end}\n * positions.\n *\n * You can create range instances via its constructor or the `createRange*()` factory methods of\n * {@link module:engine/model/model~Model} and {@link module:engine/model/writer~Writer}.\n */\nexport default class Range extends TypeCheckable implements Iterable<TreeWalkerValue> {\n\t/**\n\t * Start position.\n\t */\n\tpublic readonly start: Position;\n\n\t/**\n\t * End position.\n\t */\n\tpublic readonly end: Position;\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * @param start The start position.\n\t * @param end The end position. If not set, the range will be collapsed at the `start` position.\n\t */\n\tconstructor( start: Position, end?: Position | null ) {\n\t\tsuper();\n\n\t\tthis.start = Position._createAt( start );\n\t\tthis.end = end ? Position._createAt( end ) : Position._createAt( start );\n\n\t\t// If the range is collapsed, treat in a similar way as a position and set its boundaries stickiness to 'toNone'.\n\t\t// In other case, make the boundaries stick to the \"inside\" of the range.\n\t\tthis.start.stickiness = this.isCollapsed ? 'toNone' : 'toNext';\n\t\tthis.end.stickiness = this.isCollapsed ? 'toNone' : 'toPrevious';\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all {@link module:engine/model/item~Item items} that are in this range and returns\n\t * them together with additional information like length or {@link module:engine/model/position~Position positions},\n\t * grouped as {@link module:engine/model/treewalker~TreeWalkerValue}.\n\t * It iterates over all {@link module:engine/model/textproxy~TextProxy text contents} that are inside the range\n\t * and all the {@link module:engine/model/element~Element}s that are entered into when iterating over this range.\n\t *\n\t * This iterator uses {@link module:engine/model/treewalker~TreeWalker} with `boundaries` set to this range\n\t * and `ignoreElementEnd` option set to `true`.\n\t */\n\tpublic* [ Symbol.iterator ](): IterableIterator<TreeWalkerValue> {\n\t\tyield* new TreeWalker( { boundaries: this, ignoreElementEnd: true } );\n\t}\n\n\t/**\n\t * Describes whether the range is collapsed, that is if {@link #start} and\n\t * {@link #end} positions are equal.\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this.start.isEqual( this.end );\n\t}\n\n\t/**\n\t * Describes whether this range is flat, that is if {@link #start} position and\n\t * {@link #end} position are in the same {@link module:engine/model/position~Position#parent}.\n\t */\n\tpublic get isFlat(): boolean {\n\t\tconst startParentPath = this.start.getParentPath();\n\t\tconst endParentPath = this.end.getParentPath();\n\n\t\treturn compareArrays( startParentPath, endParentPath ) == 'same';\n\t}\n\n\t/**\n\t * Range root element.\n\t */\n\tpublic get root(): Element | DocumentFragment {\n\t\treturn this.start.root;\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link module:engine/model/position~Position position}.\n\t *\n\t * @param position Position to check.\n\t * @returns `true` if given {@link module:engine/model/position~Position position} is contained\n\t * in this range,`false` otherwise.\n\t */\n\tpublic containsPosition( position: Position ): boolean {\n\t\treturn position.isAfter( this.start ) && position.isBefore( this.end );\n\t}\n\n\t/**\n\t * Checks whether this range contains given {@link ~Range range}.\n\t *\n\t * @param otherRange Range to check.\n\t * @param loose Whether the check is loose or strict. If the check is strict (`false`), compared range cannot\n\t * start or end at the same position as this range boundaries. If the check is loose (`true`), compared range can start, end or\n\t * even be equal to this range. Note that collapsed ranges are always compared in strict mode.\n\t * @returns {Boolean} `true` if given {@link ~Range range} boundaries are contained by this range, `false` otherwise.\n\t */\n\tpublic containsRange( otherRange: Range, loose: boolean = false ): boolean {\n\t\tif ( otherRange.isCollapsed ) {\n\t\t\tloose = false;\n\t\t}\n\n\t\tconst containsStart = this.containsPosition( otherRange.start ) || ( loose && this.start.isEqual( otherRange.start ) );\n\t\tconst containsEnd = this.containsPosition( otherRange.end ) || ( loose && this.end.isEqual( otherRange.end ) );\n\n\t\treturn containsStart && containsEnd;\n\t}\n\n\t/**\n\t * Checks whether given {@link module:engine/model/item~Item} is inside this range.\n\t */\n\tpublic containsItem( item: Item ): boolean {\n\t\tconst pos = Position._createBefore( item );\n\n\t\treturn this.containsPosition( pos ) || this.start.isEqual( pos );\n\t}\n\n\t/**\n\t * Two ranges are equal if their {@link #start} and {@link #end} positions are equal.\n\t *\n\t * @param otherRange Range to compare with.\n\t * @returns `true` if ranges are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherRange: Range ): boolean {\n\t\treturn this.start.isEqual( otherRange.start ) && this.end.isEqual( otherRange.end );\n\t}\n\n\t/**\n\t * Checks and returns whether this range intersects with given range.\n\t *\n\t * @param otherRange Range to compare with.\n\t * @returns `true` if ranges intersect, `false` otherwise.\n\t */\n\tpublic isIntersecting( otherRange: Range ): boolean {\n\t\treturn this.start.isBefore( otherRange.end ) && this.end.isAfter( otherRange.start );\n\t}\n\n\t/**\n\t * Computes which part(s) of this {@link ~Range range} is not a part of given {@link ~Range range}.\n\t * Returned array contains zero, one or two {@link ~Range ranges}.\n\t *\n\t * Examples:\n\t *\n\t * ```ts\n\t * let range = model.createRange(\n\t * \tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t * \tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t * );\n\t * let otherRange = model.createRange( model.createPositionFromPath( root, [ 1 ] ), model.createPositionFromPath( root, [ 5 ] ) );\n\t * let transformed = range.getDifference( otherRange );\n\t * // transformed array has no ranges because `otherRange` contains `range`\n\t *\n\t * otherRange = model.createRange( model.createPositionFromPath( root, [ 1 ] ), model.createPositionFromPath( root, [ 3 ] ) );\n\t * transformed = range.getDifference( otherRange );\n\t * // transformed array has one range: from [ 3 ] to [ 4, 0, 1 ]\n\t *\n\t * otherRange = model.createRange( model.createPositionFromPath( root, [ 3 ] ), model.createPositionFromPath( root, [ 4 ] ) );\n\t * transformed = range.getDifference( otherRange );\n\t * // transformed array has two ranges: from [ 2, 7 ] to [ 3 ] and from [ 4 ] to [ 4, 0, 1 ]\n\t * ```\n\t *\n\t * @param otherRange Range to differentiate against.\n\t * @returns The difference between ranges.\n\t */\n\tpublic getDifference( otherRange: Range ): Array<Range> {\n\t\tconst ranges = [];\n\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect.\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the start to the middle of this range.\n\t\t\t\tranges.push( new Range( this.start, otherRange.start ) );\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// add shrunken range - from the middle of this range to the end.\n\t\t\t\tranges.push( new Range( otherRange.end, this.end ) );\n\t\t\t}\n\t\t} else {\n\t\t\t// Ranges do not intersect, return the original range.\n\t\t\tranges.push( new Range( this.start, this.end ) );\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Returns an intersection of this {@link ~Range range} and given {@link ~Range range}.\n\t * Intersection is a common part of both of those ranges. If ranges has no common part, returns `null`.\n\t *\n\t * Examples:\n\t *\n\t * ```ts\n\t * let range = model.createRange(\n\t * \tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t * \tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t * );\n\t * let otherRange = model.createRange( model.createPositionFromPath( root, [ 1 ] ), model.createPositionFromPath( root, [ 2 ] ) );\n\t * let transformed = range.getIntersection( otherRange ); // null - ranges have no common part\n\t *\n\t * otherRange = model.createRange( model.createPositionFromPath( root, [ 3 ] ), model.createPositionFromPath( root, [ 5 ] ) );\n\t * transformed = range.getIntersection( otherRange ); // range from [ 3 ] to [ 4, 0, 1 ]\n\t * ```\n\t *\n\t * @param otherRange Range to check for intersection.\n\t * @returns A common part of given ranges or `null` if ranges have no common part.\n\t */\n\tpublic getIntersection( otherRange: Range ): Range | null {\n\t\tif ( this.isIntersecting( otherRange ) ) {\n\t\t\t// Ranges intersect, so a common range will be returned.\n\t\t\t// At most, it will be same as this range.\n\t\t\tlet commonRangeStart = this.start;\n\t\t\tlet commonRangeEnd = this.end;\n\n\t\t\tif ( this.containsPosition( otherRange.start ) ) {\n\t\t\t\t// Given range start is inside this range. This means thaNt we have to\n\t\t\t\t// shrink common range to the given range start.\n\t\t\t\tcommonRangeStart = otherRange.start;\n\t\t\t}\n\n\t\t\tif ( this.containsPosition( otherRange.end ) ) {\n\t\t\t\t// Given range end is inside this range. This means that we have to\n\t\t\t\t// shrink common range to the given range end.\n\t\t\t\tcommonRangeEnd = otherRange.end;\n\t\t\t}\n\n\t\t\treturn new Range( commonRangeStart, commonRangeEnd );\n\t\t}\n\n\t\t// Ranges do not intersect, so they do not have common part.\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns a range created by joining this {@link ~Range range} with the given {@link ~Range range}.\n\t * If ranges have no common part, returns `null`.\n\t *\n\t * Examples:\n\t *\n\t * ```ts\n\t * let range = model.createRange(\n\t * \tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t * \tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t * );\n\t * let otherRange = model.createRange(\n\t * \tmodel.createPositionFromPath( root, [ 1 ] ),\n\t * \tmodel.createPositionFromPath( root, [ 2 ] )\n \t * );\n\t * let transformed = range.getJoined( otherRange ); // null - ranges have no common part\n\t *\n\t * otherRange = model.createRange(\n\t * \tmodel.createPositionFromPath( root, [ 3 ] ),\n\t * \tmodel.createPositionFromPath( root, [ 5 ] )\n\t * );\n\t * transformed = range.getJoined( otherRange ); // range from [ 2, 7 ] to [ 5 ]\n\t * ```\n\t *\n\t * @param otherRange Range to be joined.\n\t * @param loose Whether the intersection check is loose or strict. If the check is strict (`false`),\n\t * ranges are tested for intersection or whether start/end positions are equal. If the check is loose (`true`),\n\t * compared range is also checked if it's {@link module:engine/model/position~Position#isTouching touching} current range.\n\t * @returns A sum of given ranges or `null` if ranges have no common part.\n\t */\n\tpublic getJoined( otherRange: Range, loose: boolean = false ): Range | null {\n\t\tlet shouldJoin = this.isIntersecting( otherRange );\n\n\t\tif ( !shouldJoin ) {\n\t\t\tif ( this.start.isBefore( otherRange.start ) ) {\n\t\t\t\tshouldJoin = loose ? this.end.isTouching( otherRange.start ) : this.end.isEqual( otherRange.start );\n\t\t\t} else {\n\t\t\t\tshouldJoin = loose ? otherRange.end.isTouching( this.start ) : otherRange.end.isEqual( this.start );\n\t\t\t}\n\t\t}\n\n\t\tif ( !shouldJoin ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tlet startPosition = this.start;\n\t\tlet endPosition = this.end;\n\n\t\tif ( otherRange.start.isBefore( startPosition ) ) {\n\t\t\tstartPosition = otherRange.start;\n\t\t}\n\n\t\tif ( otherRange.end.isAfter( endPosition ) ) {\n\t\t\tendPosition = otherRange.end;\n\t\t}\n\n\t\treturn new Range( startPosition, endPosition );\n\t}\n\n\t/**\n\t * Computes and returns the smallest set of {@link #isFlat flat} ranges, that covers this range in whole.\n\t *\n\t * See an example of a model structure (`[` and `]` are range boundaries):\n\t *\n\t * ```\n\t * root                                                            root\n\t *  |- element DIV                         DIV             P2              P3             DIV\n\t *  |   |- element H                   H        P1        f o o           b a r       H         P4\n\t *  |   |   |- \"fir[st\"             fir[st     lorem                               se]cond     ipsum\n\t *  |   |- element P1\n\t *  |   |   |- \"lorem\"                                              ||\n\t *  |- element P2                                                   ||\n\t *  |   |- \"foo\"                                                    VV\n\t *  |- element P3\n\t *  |   |- \"bar\"                                                   root\n\t *  |- element DIV                         DIV             [P2             P3]             DIV\n\t *  |   |- element H                   H       [P1]       f o o           b a r        H         P4\n\t *  |   |   |- \"se]cond\"            fir[st]    lorem                               [se]cond     ipsum\n\t *  |   |- element P4\n\t *  |   |   |- \"ipsum\"\n\t * ```\n\t *\n\t * As it can be seen, letters contained in the range are: `stloremfoobarse`, spread across different parents.\n\t * We are looking for minimal set of flat ranges that contains the same nodes.\n\t *\n\t * Minimal flat ranges for above range `( [ 0, 0, 3 ], [ 3, 0, 2 ] )` will be:\n\t *\n\t * ```\n\t * ( [ 0, 0, 3 ], [ 0, 0, 5 ] ) = \"st\"\n\t * ( [ 0, 1 ], [ 0, 2 ] ) = element P1 (\"lorem\")\n\t * ( [ 1 ], [ 3 ] ) = element P2, element P3 (\"foobar\")\n\t * ( [ 3, 0, 0 ], [ 3, 0, 2 ] ) = \"se\"\n\t * ```\n\t *\n\t * **Note:** if an {@link module:engine/model/element~Element element} is not wholly contained in this range, it won't be returned\n\t * in any of the returned flat ranges. See in the example how `H` elements at the beginning and at the end of the range\n\t * were omitted. Only their parts that were wholly in the range were returned.\n\t *\n\t * **Note:** this method is not returning flat ranges that contain no nodes.\n\t *\n\t * @returns Array of flat ranges covering this range.\n\t */\n\tpublic getMinimalFlatRanges(): Array<Range> {\n\t\tconst ranges = [];\n\t\tconst diffAt = this.start.getCommonPath( this.end ).length;\n\n\t\tconst pos = Position._createAt( this.start );\n\t\tlet posParent = pos.parent;\n\n\t\t// Go up.\n\t\twhile ( pos.path.length > diffAt + 1 ) {\n\t\t\tconst howMany = posParent.maxOffset - pos.offset;\n\n\t\t\tif ( howMany !== 0 ) {\n\t\t\t\tranges.push( new Range( pos, pos.getShiftedBy( howMany ) ) );\n\t\t\t}\n\n\t\t\t( pos as any ).path = pos.path.slice( 0, -1 );\n\t\t\tpos.offset++;\n\t\t\tposParent = posParent.parent!;\n\t\t}\n\n\t\t// Go down.\n\t\twhile ( pos.path.length <= this.end.path.length ) {\n\t\t\tconst offset = this.end.path[ pos.path.length - 1 ];\n\t\t\tconst howMany = offset - pos.offset;\n\n\t\t\tif ( howMany !== 0 ) {\n\t\t\t\tranges.push( new Range( pos, pos.getShiftedBy( howMany ) ) );\n\t\t\t}\n\n\t\t\tpos.offset = offset;\n\t\t\t( pos.path as Array<number> ).push( 0 );\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/treewalker~TreeWalker TreeWalker} instance with this range as a boundary.\n\t *\n\t * For example, to iterate over all items in the entire document root:\n\t *\n\t * ```ts\n\t * // Create a range spanning over the entire root content:\n\t * const range = editor.model.createRangeIn( editor.model.document.getRoot() );\n\t *\n\t * // Iterate over all items in this range:\n\t * for ( const value of range.getWalker() ) {\n\t * \tconsole.log( value.item );\n\t * }\n\t * ```\n\t *\n\t * @param options Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t */\n\tpublic getWalker( options: TreeWalkerOptions = {} ): TreeWalker {\n\t\toptions.boundaries = this;\n\n\t\treturn new TreeWalker( options );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/model/item~Item items} that are in this range and returns\n\t * them.\n\t *\n\t * This method uses {@link module:engine/model/treewalker~TreeWalker} with `boundaries` set to this range and `ignoreElementEnd` option\n\t * set to `true`. However it returns only {@link module:engine/model/item~Item model items},\n\t * not {@link module:engine/model/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/model/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param options Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t */\n\tpublic* getItems( options: TreeWalkerOptions = {} ): IterableIterator<Item> {\n\t\toptions.boundaries = this;\n\t\toptions.ignoreElementEnd = true;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.item;\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all {@link module:engine/model/position~Position positions} that are boundaries or\n\t * contained in this range.\n\t *\n\t * This method uses {@link module:engine/model/treewalker~TreeWalker} with `boundaries` set to this range. However it returns only\n\t * {@link module:engine/model/position~Position positions}, not {@link module:engine/model/treewalker~TreeWalkerValue}.\n\t *\n\t * You may specify additional options for the tree walker. See {@link module:engine/model/treewalker~TreeWalker} for\n\t * a full list of available options.\n\t *\n\t * @param options Object with configuration options. See {@link module:engine/model/treewalker~TreeWalker}.\n\t */\n\tpublic* getPositions( options: TreeWalkerOptions = {} ): IterableIterator<Position> {\n\t\toptions.boundaries = this;\n\n\t\tconst treeWalker = new TreeWalker( options );\n\n\t\tyield treeWalker.position;\n\n\t\tfor ( const value of treeWalker ) {\n\t\t\tyield value.nextPosition;\n\t\t}\n\t}\n\n\t/**\n\t * Returns a range that is a result of transforming this range by given `operation`.\n\t *\n\t * **Note:** transformation may break one range into multiple ranges (for example, when a part of the range is\n\t * moved to a different part of document tree). For this reason, an array is returned by this method and it\n\t * may contain one or more `Range` instances.\n\t *\n\t * @param operation Operation to transform range by.\n\t * @returns Range which is the result of transformation.\n\t */\n\tpublic getTransformedByOperation( operation: Operation ): Array<Range> {\n\t\tswitch ( operation.type ) {\n\t\t\tcase 'insert':\n\t\t\t\treturn this._getTransformedByInsertOperation( operation as InsertOperation );\n\t\t\tcase 'move':\n\t\t\tcase 'remove':\n\t\t\tcase 'reinsert':\n\t\t\t\treturn this._getTransformedByMoveOperation( operation as MoveOperation );\n\t\t\tcase 'split':\n\t\t\t\treturn [ this._getTransformedBySplitOperation( operation as SplitOperation ) ];\n\t\t\tcase 'merge':\n\t\t\t\treturn [ this._getTransformedByMergeOperation( operation as MergeOperation ) ];\n\t\t}\n\n\t\treturn [ new Range( this.start, this.end ) ];\n\t}\n\n\t/**\n\t * Returns a range that is a result of transforming this range by multiple `operations`.\n\t *\n\t * @see ~Range#getTransformedByOperation\n\t * @param operations Operations to transform the range by.\n\t * @returns Range which is the result of transformation.\n\t */\n\tpublic getTransformedByOperations( operations: Iterable<Operation> ): Array<Range> {\n\t\tconst ranges = [ new Range( this.start, this.end ) ];\n\n\t\tfor ( const operation of operations ) {\n\t\t\tfor ( let i = 0; i < ranges.length; i++ ) {\n\t\t\t\tconst result = ranges[ i ].getTransformedByOperation( operation );\n\n\t\t\t\tranges.splice( i, 1, ...result );\n\t\t\t\ti += result.length - 1;\n\t\t\t}\n\t\t}\n\n\t\t// It may happen that a range is split into two, and then the part of second \"piece\" is moved into first\n\t\t// \"piece\". In this case we will have incorrect third range, which should not be included in the result --\n\t\t// because it is already included in the first \"piece\". In this loop we are looking for all such ranges that\n\t\t// are inside other ranges and we simply remove them.\n\t\tfor ( let i = 0; i < ranges.length; i++ ) {\n\t\t\tconst range = ranges[ i ];\n\n\t\t\tfor ( let j = i + 1; j < ranges.length; j++ ) {\n\t\t\t\tconst next = ranges[ j ];\n\n\t\t\t\tif ( range.containsRange( next ) || next.containsRange( range ) || range.isEqual( next ) ) {\n\t\t\t\t\tranges.splice( j, 1 );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn ranges;\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/model/element~Element} or {@link module:engine/model/documentfragment~DocumentFragment}\n\t * which is a common ancestor of the range's both ends (in which the entire range is contained).\n\t */\n\tpublic getCommonAncestor(): Element | DocumentFragment | null {\n\t\treturn this.start.getCommonAncestor( this.end );\n\t}\n\n\t/**\n\t * Returns an {@link module:engine/model/element~Element Element} contained by the range.\n\t * The element will be returned when it is the **only** node within the range and **fully–contained**\n\t * at the same time.\n\t */\n\tpublic getContainedElement(): Element | null {\n\t\tif ( this.isCollapsed ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst nodeAfterStart = this.start.nodeAfter;\n\t\tconst nodeBeforeEnd = this.end.nodeBefore;\n\n\t\tif ( nodeAfterStart && nodeAfterStart.is( 'element' ) && nodeAfterStart === nodeBeforeEnd ) {\n\t\t\treturn nodeAfterStart;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Converts `Range` to plain object and returns it.\n\t *\n\t * @returns `Node` converted to plain object.\n\t */\n\tpublic toJSON(): unknown {\n\t\treturn {\n\t\t\tstart: this.start.toJSON(),\n\t\t\tend: this.end.toJSON()\n\t\t};\n\t}\n\n\t/**\n\t * Returns a new range that is equal to current range.\n\t */\n\tpublic clone(): this {\n\t\treturn new ( this.constructor as any )( this.start, this.end );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by insert operation.\n\t *\n\t * One or more ranges may be returned as a result of this transformation.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedByInsertOperation( operation: InsertOperation, spread: boolean = false ): Array<Range> {\n\t\treturn this._getTransformedByInsertion( operation.position, operation.howMany, spread );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by move operation.\n\t *\n\t * One or more ranges may be returned as a result of this transformation.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedByMoveOperation( operation: MoveOperation, spread: boolean = false ): Array<Range> {\n\t\tconst sourcePosition = operation.sourcePosition;\n\t\tconst howMany = operation.howMany;\n\t\tconst targetPosition = operation.targetPosition;\n\n\t\treturn this._getTransformedByMove( sourcePosition, targetPosition, howMany, spread );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by split operation.\n\t *\n\t * Always one range is returned. The transformation is done in a way to not break the range.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedBySplitOperation( operation: SplitOperation ): Range {\n\t\tconst start = this.start._getTransformedBySplitOperation( operation );\n\t\tlet end = this.end._getTransformedBySplitOperation( operation );\n\n\t\tif ( this.end.isEqual( operation.insertionPosition ) ) {\n\t\t\tend = this.end.getShiftedBy( 1 );\n\t\t}\n\n\t\t// Below may happen when range contains graveyard element used by split operation.\n\t\tif ( start.root != end.root ) {\n\t\t\t// End position was next to the moved graveyard element and was moved with it.\n\t\t\t// Fix it by using old `end` which has proper `root`.\n\t\t\tend = this.end.getShiftedBy( -1 );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Returns a result of transforming a copy of this range by merge operation.\n\t *\n\t * Always one range is returned. The transformation is done in a way to not break the range.\n\t *\n\t * @internal\n\t */\n\tpublic _getTransformedByMergeOperation( operation: MergeOperation ): Range {\n\t\t// Special case when the marker is set on \"the closing tag\" of an element. Marker can be set like that during\n\t\t// transformations, especially when a content of a few block elements were removed. For example:\n\t\t//\n\t\t// {} is the transformed range, [] is the removed range.\n\t\t// <p>F[o{o</p><p>B}ar</p><p>Xy]z</p>\n\t\t//\n\t\t// <p>Fo{o</p><p>B}ar</p><p>z</p>\n\t\t// <p>F{</p><p>B}ar</p><p>z</p>\n\t\t// <p>F{</p>}<p>z</p>\n\t\t// <p>F{}z</p>\n\t\t//\n\t\tif ( this.start.isEqual( operation.targetPosition ) && this.end.isEqual( operation.deletionPosition ) ) {\n\t\t\treturn new Range( this.start );\n\t\t}\n\n\t\tlet start = this.start._getTransformedByMergeOperation( operation );\n\t\tlet end = this.end._getTransformedByMergeOperation( operation );\n\n\t\tif ( start.root != end.root ) {\n\t\t\t// This happens when the end position was next to the merged (deleted) element.\n\t\t\t// Then, the end position was moved to the graveyard root. In this case we need to fix\n\t\t\t// the range cause its boundaries would be in different roots.\n\t\t\tend = this.end.getShiftedBy( -1 );\n\t\t}\n\n\t\tif ( start.isAfter( end ) ) {\n\t\t\t// This happens in three following cases:\n\t\t\t//\n\t\t\t// Case 1: Merge operation source position is before the target position (due to some transformations, OT, etc.)\n\t\t\t//         This means that start can be moved before the end of the range.\n\t\t\t//\n\t\t\t// Before: <p>a{a</p><p>b}b</p><p>cc</p>\n\t\t\t// Merge:  <p>b}b</p><p>cca{a</p>\n\t\t\t// Fix:    <p>{b}b</p><p>ccaa</p>\n\t\t\t//\n\t\t\t// Case 2: Range start is before merged node but not directly.\n\t\t\t//         Result should include all nodes that were in the original range.\n\t\t\t//\n\t\t\t// Before: <p>aa</p>{<p>cc</p><p>b}b</p>\n\t\t\t// Merge:  <p>aab}b</p>{<p>cc</p>\n\t\t\t// Fix:    <p>aa{bb</p><p>cc</p>}\n\t\t\t//\n\t\t\t//         The range is expanded by an additional `b` letter but it is better than dropping the whole `cc` paragraph.\n\t\t\t//\n\t\t\t// Case 3: Range start is directly before merged node.\n\t\t\t//         Resulting range should include only nodes from the merged element:\n\t\t\t//\n\t\t\t// Before: <p>aa</p>{<p>b}b</p><p>cc</p>\n\t\t\t// Merge:  <p>aab}b</p>{<p>cc</p>\n\t\t\t// Fix:    <p>aa{b}b</p><p>cc</p>\n\t\t\t//\n\n\t\t\tif ( operation.sourcePosition.isBefore( operation.targetPosition ) ) {\n\t\t\t\t// Case 1.\n\t\t\t\tstart = Position._createAt( end );\n\t\t\t\tstart.offset = 0;\n\t\t\t} else {\n\t\t\t\tif ( !operation.deletionPosition.isEqual( start ) ) {\n\t\t\t\t\t// Case 2.\n\t\t\t\t\tend = operation.deletionPosition;\n\t\t\t\t}\n\n\t\t\t\t// In both case 2 and 3 start is at the end of the merge-to element.\n\t\t\t\tstart = operation.targetPosition;\n\t\t\t}\n\n\t\t\treturn new Range( start, end );\n\t\t}\n\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Returns an array containing one or two {@link ~Range ranges} that are a result of transforming this\n\t * {@link ~Range range} by inserting `howMany` nodes at `insertPosition`. Two {@link ~Range ranges} are\n\t * returned if the insertion was inside this {@link ~Range range} and `spread` is set to `true`.\n\t *\n\t * Examples:\n\t *\n\t * ```ts\n\t * let range = model.createRange(\n\t * \tmodel.createPositionFromPath( root, [ 2, 7 ] ),\n\t * \tmodel.createPositionFromPath( root, [ 4, 0, 1 ] )\n\t * );\n\t * let transformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 1 ] ), 2 );\n\t * // transformed array has one range from [ 4, 7 ] to [ 6, 0, 1 ]\n\t *\n\t * transformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 4, 0, 0 ] ), 4 );\n\t * // transformed array has one range from [ 2, 7 ] to [ 4, 0, 5 ]\n\t *\n\t * transformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 3, 2 ] ), 4 );\n\t * // transformed array has one range, which is equal to original range\n\t *\n\t * transformed = range._getTransformedByInsertion( model.createPositionFromPath( root, [ 3, 2 ] ), 4, true );\n\t * // transformed array has two ranges: from [ 2, 7 ] to [ 3, 2 ] and from [ 3, 6 ] to [ 4, 0, 1 ]\n\t * ```\n\t *\n\t * @internal\n\t * @param insertPosition Position where nodes are inserted.\n\t * @param howMany How many nodes are inserted.\n\t * @param spread Flag indicating whether this range should be spread if insertion\n\t * was inside the range. Defaults to `false`.\n\t * @returns Result of the transformation.\n\t */\n\tpublic _getTransformedByInsertion( insertPosition: Position, howMany: number, spread: boolean = false ): Array<Range> {\n\t\tif ( spread && this.containsPosition( insertPosition ) ) {\n\t\t\t// Range has to be spread. The first part is from original start to the spread point.\n\t\t\t// The other part is from spread point to the original end, but transformed by\n\t\t\t// insertion to reflect insertion changes.\n\n\t\t\treturn [\n\t\t\t\tnew Range( this.start, insertPosition ),\n\t\t\t\tnew Range(\n\t\t\t\t\tinsertPosition.getShiftedBy( howMany ),\n\t\t\t\t\tthis.end._getTransformedByInsertion( insertPosition, howMany )\n\t\t\t\t)\n\t\t\t];\n\t\t} else {\n\t\t\tconst range = new Range( this.start, this.end );\n\n\t\t\t( range as any ).start = range.start._getTransformedByInsertion( insertPosition, howMany );\n\t\t\t( range as any ).end = range.end._getTransformedByInsertion( insertPosition, howMany );\n\n\t\t\treturn [ range ];\n\t\t}\n\t}\n\n\t/**\n\t * Returns an array containing {@link ~Range ranges} that are a result of transforming this\n\t * {@link ~Range range} by moving `howMany` nodes from `sourcePosition` to `targetPosition`.\n\t *\n\t * @internal\n\t * @param sourcePosition Position from which nodes are moved.\n\t * @param targetPosition Position to where nodes are moved.\n\t * @param howMany How many nodes are moved.\n\t * @param spread Whether the range should be spread if the move points inside the range.\n\t * @returns  Result of the transformation.\n\t */\n\tpublic _getTransformedByMove(\n\t\tsourcePosition: Position,\n\t\ttargetPosition: Position,\n\t\thowMany: number,\n\t\tspread: boolean = false\n\t): Array<Range> {\n\t\t// Special case for transforming a collapsed range. Just transform it like a position.\n\t\tif ( this.isCollapsed ) {\n\t\t\tconst newPos = this.start._getTransformedByMove( sourcePosition, targetPosition, howMany );\n\n\t\t\treturn [ new Range( newPos ) ];\n\t\t}\n\n\t\t// Special case for transformation when a part of the range is moved towards the range.\n\t\t//\n\t\t// Examples:\n\t\t//\n\t\t// <div><p>ab</p><p>c[d</p></div><p>e]f</p> --> <div><p>ab</p></div><p>c[d</p><p>e]f</p>\n\t\t// <p>e[f</p><div><p>a]b</p><p>cd</p></div> --> <p>e[f</p><p>a]b</p><div><p>cd</p></div>\n\t\t//\n\t\t// Without this special condition, the default algorithm leaves an \"artifact\" range from one of `differenceSet` parts:\n\t\t//\n\t\t// <div><p>ab</p><p>c[d</p></div><p>e]f</p> --> <div><p>ab</p>{</div>}<p>c[d</p><p>e]f</p>\n\t\t//\n\t\t// This special case is applied only if the range is to be kept together (not spread).\n\t\tconst moveRange = Range._createFromPositionAndShift( sourcePosition, howMany );\n\t\tconst insertPosition = targetPosition._getTransformedByDeletion( sourcePosition, howMany );\n\n\t\tif ( this.containsPosition( targetPosition ) && !spread ) {\n\t\t\tif ( moveRange.containsPosition( this.start ) || moveRange.containsPosition( this.end ) ) {\n\t\t\t\tconst start = this.start._getTransformedByMove( sourcePosition, targetPosition, howMany );\n\t\t\t\tconst end = this.end._getTransformedByMove( sourcePosition, targetPosition, howMany );\n\n\t\t\t\treturn [ new Range( start, end ) ];\n\t\t\t}\n\t\t}\n\n\t\t// Default algorithm.\n\t\tlet result: Array<Range>;\n\n\t\tconst differenceSet = this.getDifference( moveRange );\n\t\tlet difference = null;\n\n\t\tconst common = this.getIntersection( moveRange );\n\n\t\tif ( differenceSet.length == 1 ) {\n\t\t\t// `moveRange` and this range may intersect but may be separate.\n\t\t\tdifference = new Range(\n\t\t\t\tdifferenceSet[ 0 ].start._getTransformedByDeletion( sourcePosition, howMany )!,\n\t\t\t\tdifferenceSet[ 0 ].end._getTransformedByDeletion( sourcePosition, howMany )!\n\t\t\t);\n\t\t} else if ( differenceSet.length == 2 ) {\n\t\t\t// `moveRange` is inside this range.\n\t\t\tdifference = new Range(\n\t\t\t\tthis.start,\n\t\t\t\tthis.end._getTransformedByDeletion( sourcePosition, howMany )\n\t\t\t);\n\t\t} // else, `moveRange` contains this range.\n\n\t\tif ( difference ) {\n\t\t\tresult = difference._getTransformedByInsertion( insertPosition!, howMany, common !== null || spread );\n\t\t} else {\n\t\t\tresult = [];\n\t\t}\n\n\t\tif ( common ) {\n\t\t\tconst transformedCommon = new Range(\n\t\t\t\tcommon.start._getCombined( moveRange.start, insertPosition! ),\n\t\t\t\tcommon.end._getCombined( moveRange.start, insertPosition! )\n\t\t\t);\n\n\t\t\tif ( result.length == 2 ) {\n\t\t\t\tresult.splice( 1, 0, transformedCommon );\n\t\t\t} else {\n\t\t\t\tresult.push( transformedCommon );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns a copy of this range that is transformed by deletion of `howMany` nodes from `deletePosition`.\n\t *\n\t * If the deleted range is intersecting with the transformed range, the transformed range will be shrank.\n\t *\n\t * If the deleted range contains transformed range, `null` will be returned.\n\t *\n\t * @internal\n\t * @param deletionPosition Position from which nodes are removed.\n\t * @param howMany How many nodes are removed.\n\t * @returns Result of the transformation.\n\t */\n\tpublic _getTransformedByDeletion( deletePosition: Position, howMany: number ): Range | null {\n\t\tlet newStart = this.start._getTransformedByDeletion( deletePosition, howMany );\n\t\tlet newEnd = this.end._getTransformedByDeletion( deletePosition, howMany );\n\n\t\tif ( newStart == null && newEnd == null ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( newStart == null ) {\n\t\t\tnewStart = deletePosition;\n\t\t}\n\n\t\tif ( newEnd == null ) {\n\t\t\tnewEnd = deletePosition;\n\t\t}\n\n\t\treturn new Range( newStart, newEnd );\n\t}\n\n\t/**\n\t * Creates a new range, spreading from specified {@link module:engine/model/position~Position position} to a position moved by\n\t * given `shift`. If `shift` is a negative value, shifted position is treated as the beginning of the range.\n\t *\n\t * @internal\n\t * @param position Beginning of the range.\n\t * @param shift How long the range should be.\n\t */\n\tpublic static _createFromPositionAndShift( position: Position, shift: number ): Range {\n\t\tconst start = position;\n\t\tconst end = position.getShiftedBy( shift );\n\n\t\treturn shift > 0 ? new this( start, end ) : new this( end, start );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/model/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @internal\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic static _createIn( element: Element | DocumentFragment ): Range {\n\t\treturn new this( Position._createAt( element, 0 ), Position._createAt( element, element.maxOffset ) );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/model/item~Item model item} and ends after it.\n\t *\n\t * @internal\n\t */\n\tpublic static _createOn( item: Item ): Range {\n\t\treturn this._createFromPositionAndShift( Position._createBefore( item ), item.offsetSize );\n\t}\n\n\t/**\n\t * Combines all ranges from the passed array into a one range. At least one range has to be passed.\n\t * Passed ranges must not have common parts.\n\t *\n\t * The first range from the array is a reference range. If other ranges start or end on the exactly same position where\n\t * the reference range, they get combined into one range.\n\t *\n\t * ```\n\t * [  ][]  [    ][ ][             ][ ][]  [  ]  // Passed ranges, shown sorted\n\t * [    ]                                       // The result of the function if the first range was a reference range.\n\t *         [                           ]        // The result of the function if the third-to-seventh range was a reference range.\n\t *                                        [  ]  // The result of the function if the last range was a reference range.\n\t * ```\n\t *\n\t * @internal\n\t * @param ranges Ranges to combine.\n\t * @returns Combined range.\n\t */\n\tpublic static _createFromRanges( ranges: Array<Range> ): Range {\n\t\tif ( ranges.length === 0 ) {\n\t\t\t/**\n\t\t\t * At least one range has to be passed to\n\t\t\t * {@link module:engine/model/range~Range._createFromRanges `Range._createFromRanges()`}.\n\t\t\t *\n\t\t\t * @error range-create-from-ranges-empty-array\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'range-create-from-ranges-empty-array',\n\t\t\t\tnull\n\t\t\t);\n\t\t} else if ( ranges.length == 1 ) {\n\t\t\treturn ranges[ 0 ].clone();\n\t\t}\n\n\t\t// 1. Set the first range in `ranges` array as a reference range.\n\t\t// If we are going to return just a one range, one of the ranges need to be the reference one.\n\t\t// Other ranges will be stuck to that range, if possible.\n\t\tconst ref = ranges[ 0 ];\n\n\t\t// 2. Sort all the ranges so it's easier to process them.\n\t\tranges.sort( ( a, b ) => {\n\t\t\treturn a.start.isAfter( b.start ) ? 1 : -1;\n\t\t} );\n\n\t\t// 3. Check at which index the reference range is now.\n\t\tconst refIndex = ranges.indexOf( ref );\n\n\t\t// 4. At this moment we don't need the original range.\n\t\t// We are going to modify the result and we need to return a new instance of Range.\n\t\t// We have to create a copy of the reference range.\n\t\tconst result = new this( ref.start, ref.end );\n\n\t\t// 5. Ranges should be checked and glued starting from the range that is closest to the reference range.\n\t\t// Since ranges are sorted, start with the range with index that is closest to reference range index.\n\t\tif ( refIndex > 0 ) {\n\t\t\t// eslint-disable-next-line no-constant-condition\n\t\t\tfor ( let i = refIndex - 1; true; i++ ) {\n\t\t\t\tif ( ranges[ i ].end.isEqual( result.start ) ) {\n\t\t\t\t\t( result as any ).start = Position._createAt( ranges[ i ].start );\n\t\t\t\t} else {\n\t\t\t\t\t// If ranges are not starting/ending at the same position there is no point in looking further.\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// 6. Ranges should be checked and glued starting from the range that is closest to the reference range.\n\t\t// Since ranges are sorted, start with the range with index that is closest to reference range index.\n\t\tfor ( let i = refIndex + 1; i < ranges.length; i++ ) {\n\t\t\tif ( ranges[ i ].start.isEqual( result.end ) ) {\n\t\t\t\t( result as any ).end = Position._createAt( ranges[ i ].end );\n\t\t\t} else {\n\t\t\t\t// If ranges are not starting/ending at the same position there is no point in looking further.\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Creates a `Range` instance from given plain object (i.e. parsed JSON string).\n\t *\n\t * @param json Plain object to be converted to `Range`.\n\t * @param doc Document object that will be range owner.\n\t * @returns `Range` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any, doc: Document ): Range {\n\t\treturn new this( Position.fromJSON( json.start, doc ), Position.fromJSON( json.end, doc ) );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `${ this.root } [ ${ this.start.path.join( ', ' ) } ] - [ ${ this.end.path.join( ', ' ) } ]`;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelPosition: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nRange.prototype.is = function( type: string ): boolean {\n\treturn type === 'range' || type === 'model:range';\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/mapper\n */\n\nimport ModelPosition from '../model/position';\nimport ModelRange from '../model/range';\n\nimport ViewPosition from '../view/position';\nimport ViewRange from '../view/range';\nimport ViewText from '../view/text';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type ViewElement from '../view/element';\nimport type ModelElement from '../model/element';\nimport type ModelDocumentFragment from '../model/documentfragment';\nimport type ViewNode from '../view/node';\n\n/**\n * Maps elements, positions and markers between the {@link module:engine/view/document~Document view} and\n * the {@link module:engine/model/model model}.\n *\n * The instance of the Mapper used for the editing pipeline is available in\n * {@link module:engine/controller/editingcontroller~EditingController#mapper `editor.editing.mapper`}.\n *\n * Mapper uses bound elements to find corresponding elements and positions, so, to get proper results,\n * all model elements should be {@link module:engine/conversion/mapper~Mapper#bindElements bound}.\n *\n * To map the complex model to/from view relations, you may provide custom callbacks for the\n * {@link module:engine/conversion/mapper~Mapper#event:modelToViewPosition modelToViewPosition event} and\n * {@link module:engine/conversion/mapper~Mapper#event:viewToModelPosition viewToModelPosition event} that are fired whenever\n * a position mapping request occurs.\n * Those events are fired by the {@link module:engine/conversion/mapper~Mapper#toViewPosition toViewPosition}\n * and {@link module:engine/conversion/mapper~Mapper#toModelPosition toModelPosition} methods. `Mapper` adds its own default callbacks\n * with `'lowest'` priority. To override default `Mapper` mapping, add custom callback with higher priority and\n * stop the event.\n */\nexport default class Mapper extends EmitterMixin() {\n\t/**\n\t * Model element to view element mapping.\n\t */\n\tprivate _modelToViewMapping = new WeakMap<ModelElement | ModelDocumentFragment, ViewElement | ViewDocumentFragment>();\n\n\t/**\n\t * View element to model element mapping.\n\t */\n\tprivate _viewToModelMapping = new WeakMap<ViewElement | ViewDocumentFragment, ModelElement | ModelDocumentFragment>();\n\n\t/**\n\t * A map containing callbacks between view element names and functions evaluating length of view elements\n\t * in model.\n\t */\n\tprivate _viewToModelLengthCallbacks = new Map<string, ( element: ViewElement ) => number>();\n\n\t/**\n\t * Model marker name to view elements mapping.\n\t *\n\t * Keys are `String`s while values are `Set`s with {@link module:engine/view/element~Element view elements}.\n\t * One marker (name) can be mapped to multiple elements.\n\t */\n\tprivate _markerNameToElements = new Map<string, Set<ViewElement>>();\n\n\t/**\n\t * View element to model marker names mapping.\n\t *\n\t * This is reverse to {@link ~Mapper#_markerNameToElements} map.\n\t */\n\tprivate _elementToMarkerNames = new Map<ViewElement, Set<string>>();\n\n\t/**\n\t * The map of removed view elements with their current root (used for deferred unbinding).\n\t */\n\tprivate _deferredBindingRemovals = new Map<ViewElement, ViewElement | ViewDocumentFragment>();\n\n\t/**\n\t * Stores marker names of markers which have changed due to unbinding a view element (so it is assumed that the view element\n\t * has been removed, moved or renamed).\n\t */\n\tprivate _unboundMarkerNames = new Set<string>();\n\n\t/**\n\t * Creates an instance of the mapper.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\t// Default mapper algorithm for mapping model position to view position.\n\t\tthis.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', ( evt, data ) => {\n\t\t\tif ( data.viewPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst viewContainer = this._modelToViewMapping.get( data.modelPosition.parent as ModelElement );\n\n\t\t\tif ( !viewContainer ) {\n\t\t\t\t/**\n\t\t\t\t * A model position could not be mapped to the view because the parent of the model position\n\t\t\t\t * does not have a mapped view element (might have not been converted yet or it has no converter).\n\t\t\t\t *\n\t\t\t\t * Make sure that the model element is correctly converted to the view.\n\t\t\t\t *\n\t\t\t\t * @error mapping-model-position-view-parent-not-found\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'mapping-model-position-view-parent-not-found', this, { modelPosition: data.modelPosition } );\n\t\t\t}\n\n\t\t\tdata.viewPosition = this.findPositionIn( viewContainer, data.modelPosition.offset );\n\t\t}, { priority: 'low' } );\n\n\t\t// Default mapper algorithm for mapping view position to model position.\n\t\tthis.on<MapperViewToModelPositionEvent>( 'viewToModelPosition', ( evt, data ) => {\n\t\t\tif ( data.modelPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst viewBlock = this.findMappedViewAncestor( data.viewPosition );\n\t\t\tconst modelParent = this._viewToModelMapping.get( viewBlock );\n\t\t\tconst modelOffset = this._toModelOffset( data.viewPosition.parent as ViewElement, data.viewPosition.offset, viewBlock );\n\n\t\t\tdata.modelPosition = ModelPosition._createAt( modelParent!, modelOffset );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Marks model and view elements as corresponding. Corresponding elements can be retrieved by using\n\t * the {@link module:engine/conversion/mapper~Mapper#toModelElement toModelElement} and\n\t * {@link module:engine/conversion/mapper~Mapper#toViewElement toViewElement} methods.\n\t * The information that elements are bound is also used to translate positions.\n\t *\n\t * @param modelElement Model element.\n\t * @param viewElement View element.\n\t */\n\tpublic bindElements(\n\t\tmodelElement: ModelElement | ModelDocumentFragment,\n\t\tviewElement: ViewElement | ViewDocumentFragment\n\t): void {\n\t\tthis._modelToViewMapping.set( modelElement, viewElement );\n\t\tthis._viewToModelMapping.set( viewElement, modelElement );\n\t}\n\n\t/**\n\t * Unbinds the given {@link module:engine/view/element~Element view element} from the map.\n\t *\n\t * **Note:** view-to-model binding will be removed, if it existed. However, corresponding model-to-view binding\n\t * will be removed only if model element is still bound to the passed `viewElement`.\n\t *\n\t * This behavior allows for re-binding model element to another view element without fear of losing the new binding\n\t * when the previously bound view element is unbound.\n\t *\n\t * @param viewElement View element to unbind.\n\t * @param options The options object.\n\t * @param options.defer Controls whether the binding should be removed immediately or deferred until a\n\t * {@link #flushDeferredBindings `flushDeferredBindings()`} call.\n\t */\n\tpublic unbindViewElement(\n\t\tviewElement: ViewElement,\n\t\toptions: { defer?: boolean } = {}\n\t): void {\n\t\tconst modelElement = this.toModelElement( viewElement )!;\n\n\t\tif ( this._elementToMarkerNames.has( viewElement ) ) {\n\t\t\tfor ( const markerName of this._elementToMarkerNames.get( viewElement )! ) {\n\t\t\t\tthis._unboundMarkerNames.add( markerName );\n\t\t\t}\n\t\t}\n\n\t\tif ( options.defer ) {\n\t\t\tthis._deferredBindingRemovals.set( viewElement, viewElement.root );\n\t\t} else {\n\t\t\tthis._viewToModelMapping.delete( viewElement );\n\n\t\t\tif ( this._modelToViewMapping.get( modelElement ) == viewElement ) {\n\t\t\t\tthis._modelToViewMapping.delete( modelElement );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Unbinds the given {@link module:engine/model/element~Element model element} from the map.\n\t *\n\t * **Note:** the model-to-view binding will be removed, if it existed. However, the corresponding view-to-model binding\n\t * will be removed only if the view element is still bound to the passed `modelElement`.\n\t *\n\t * This behavior lets for re-binding view element to another model element without fear of losing the new binding\n\t * when the previously bound model element is unbound.\n\t *\n\t * @param modelElement Model element to unbind.\n\t */\n\tpublic unbindModelElement( modelElement: ModelElement ): void {\n\t\tconst viewElement = this.toViewElement( modelElement )!;\n\n\t\tthis._modelToViewMapping.delete( modelElement );\n\n\t\tif ( this._viewToModelMapping.get( viewElement ) == modelElement ) {\n\t\t\tthis._viewToModelMapping.delete( viewElement );\n\t\t}\n\t}\n\n\t/**\n\t * Binds the given marker name with the given {@link module:engine/view/element~Element view element}. The element\n\t * will be added to the current set of elements bound with the given marker name.\n\t *\n\t * @param element Element to bind.\n\t * @param name Marker name.\n\t */\n\tpublic bindElementToMarker( element: ViewElement, name: string ): void {\n\t\tconst elements = this._markerNameToElements.get( name ) || new Set();\n\t\telements.add( element );\n\n\t\tconst names = this._elementToMarkerNames.get( element ) || new Set();\n\t\tnames.add( name );\n\n\t\tthis._markerNameToElements.set( name, elements );\n\t\tthis._elementToMarkerNames.set( element, names );\n\t}\n\n\t/**\n\t * Unbinds an element from given marker name.\n\t *\n\t * @param element Element to unbind.\n\t * @param name Marker name.\n\t */\n\tpublic unbindElementFromMarkerName( element: ViewElement, name: string ): void {\n\t\tconst nameToElements = this._markerNameToElements.get( name );\n\n\t\tif ( nameToElements ) {\n\t\t\tnameToElements.delete( element );\n\n\t\t\tif ( nameToElements.size == 0 ) {\n\t\t\t\tthis._markerNameToElements.delete( name );\n\t\t\t}\n\t\t}\n\n\t\tconst elementToNames = this._elementToMarkerNames.get( element );\n\n\t\tif ( elementToNames ) {\n\t\t\telementToNames.delete( name );\n\n\t\t\tif ( elementToNames.size == 0 ) {\n\t\t\t\tthis._elementToMarkerNames.delete( element );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns all marker names of markers which have changed due to unbinding a view element (so it is assumed that the view element\n\t * has been removed, moved or renamed) since the last flush. After returning, the marker names list is cleared.\n\t */\n\tpublic flushUnboundMarkerNames(): Array<string> {\n\t\tconst markerNames = Array.from( this._unboundMarkerNames );\n\n\t\tthis._unboundMarkerNames.clear();\n\n\t\treturn markerNames;\n\t}\n\n\t/**\n\t * Unbinds all deferred binding removals of view elements that in the meantime were not re-attached to some root or document fragment.\n\t *\n\t * See: {@link #unbindViewElement `unbindViewElement()`}.\n\t */\n\tpublic flushDeferredBindings(): void {\n\t\tfor ( const [ viewElement, root ] of this._deferredBindingRemovals ) {\n\t\t\t// Unbind it only if it wasn't re-attached to some root or document fragment.\n\t\t\tif ( viewElement.root == root ) {\n\t\t\t\tthis.unbindViewElement( viewElement );\n\t\t\t}\n\t\t}\n\n\t\tthis._deferredBindingRemovals = new Map();\n\t}\n\n\t/**\n\t * Removes all model to view and view to model bindings.\n\t */\n\tpublic clearBindings(): void {\n\t\tthis._modelToViewMapping = new WeakMap();\n\t\tthis._viewToModelMapping = new WeakMap();\n\t\tthis._markerNameToElements = new Map();\n\t\tthis._elementToMarkerNames = new Map();\n\t\tthis._unboundMarkerNames = new Set();\n\t\tthis._deferredBindingRemovals = new Map();\n\t}\n\n\t/**\n\t * Gets the corresponding model element.\n\t *\n\t * **Note:** {@link module:engine/view/uielement~UIElement} does not have corresponding element in model.\n\t *\n\t * @label ELEMENT\n\t * @param viewElement View element.\n\t * @returns Corresponding model element or `undefined` if not found.\n\t */\n\tpublic toModelElement( viewElement: ViewElement ): ModelElement | undefined;\n\n\t/**\n\t * Gets the corresponding model document fragment.\n\t *\n\t * @label DOCUMENT_FRAGMENT\n\t * @param viewDocumentFragment View document fragment.\n\t * @returns Corresponding model document fragment or `undefined` if not found.\n\t */\n\tpublic toModelElement( viewDocumentFragment: ViewDocumentFragment ): ModelDocumentFragment | undefined;\n\n\tpublic toModelElement( viewElement: ViewElement | ViewDocumentFragment ): ModelElement | ModelDocumentFragment | undefined {\n\t\treturn this._viewToModelMapping.get( viewElement );\n\t}\n\n\t/**\n\t * Gets the corresponding view element.\n\t *\n\t * @label ELEMENT\n\t * @param modelElement Model element.\n\t * @returns Corresponding view element or `undefined` if not found.\n\t */\n\tpublic toViewElement( modelElement: ModelElement ): ViewElement | undefined;\n\n\t/**\n\t * Gets the corresponding view document fragment.\n\t *\n\t * @label DOCUMENT_FRAGMENT\n\t * @param modelDocumentFragment Model document fragment.\n\t * @returns Corresponding view document fragment or `undefined` if not found.\n\t */\n\tpublic toViewElement( modelDocumentFragment: ModelDocumentFragment ): ViewDocumentFragment | undefined;\n\n\tpublic toViewElement( modelElement: ModelElement | ModelDocumentFragment ): ViewElement | ViewDocumentFragment | undefined {\n\t\treturn this._modelToViewMapping.get( modelElement );\n\t}\n\n\t/**\n\t * Gets the corresponding model range.\n\t *\n\t * @param viewRange View range.\n\t * @returns Corresponding model range.\n\t */\n\tpublic toModelRange( viewRange: ViewRange ): ModelRange {\n\t\treturn new ModelRange( this.toModelPosition( viewRange.start ), this.toModelPosition( viewRange.end ) );\n\t}\n\n\t/**\n\t * Gets the corresponding view range.\n\t *\n\t * @param modelRange Model range.\n\t * @returns Corresponding view range.\n\t */\n\tpublic toViewRange( modelRange: ModelRange ): ViewRange {\n\t\treturn new ViewRange( this.toViewPosition( modelRange.start ), this.toViewPosition( modelRange.end ) );\n\t}\n\n\t/**\n\t * Gets the corresponding model position.\n\t *\n\t * @fires viewToModelPosition\n\t * @param viewPosition View position.\n\t * @returns Corresponding model position.\n\t */\n\tpublic toModelPosition( viewPosition: ViewPosition ): ModelPosition {\n\t\tconst data: MapperViewToModelPositionEvent[ 'args' ][ 0 ] = {\n\t\t\tviewPosition,\n\t\t\tmapper: this\n\t\t};\n\n\t\tthis.fire<MapperViewToModelPositionEvent>( 'viewToModelPosition', data );\n\n\t\treturn data.modelPosition!;\n\t}\n\n\t/**\n\t * Gets the corresponding view position.\n\t *\n\t * @fires modelToViewPosition\n\t * @param modelPosition Model position.\n\t * @param options Additional options for position mapping process.\n\t * @param options.isPhantom Should be set to `true` if the model position to map is pointing to a place\n\t * in model tree which no longer exists. For example, it could be an end of a removed model range.\n\t * @returns Corresponding view position.\n\t */\n\tpublic toViewPosition(\n\t\tmodelPosition: ModelPosition,\n\t\toptions: { isPhantom?: boolean } = {}\n\t): ViewPosition {\n\t\tconst data: MapperModelToViewPositionEvent[ 'args' ][ 0 ] = {\n\t\t\tmodelPosition,\n\t\t\tmapper: this,\n\t\t\tisPhantom: options.isPhantom\n\t\t};\n\n\t\tthis.fire<MapperModelToViewPositionEvent>( 'modelToViewPosition', data );\n\n\t\treturn data.viewPosition!;\n\t}\n\n\t/**\n\t * Gets all view elements bound to the given marker name.\n\t *\n\t * @param name Marker name.\n\t * @returns View elements bound with the given marker name or `null`\n\t * if no elements are bound to the given marker name.\n\t */\n\tpublic markerNameToElements( name: string ): Set<ViewElement> | null {\n\t\tconst boundElements = this._markerNameToElements.get( name );\n\n\t\tif ( !boundElements ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst elements = new Set<ViewElement>();\n\n\t\tfor ( const element of boundElements ) {\n\t\t\tif ( element.is( 'attributeElement' ) ) {\n\t\t\t\tfor ( const clone of element.getElementsWithSameId() ) {\n\t\t\t\t\telements.add( clone );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\telements.add( element );\n\t\t\t}\n\t\t}\n\n\t\treturn elements;\n\t}\n\n\t/**\n\t * Registers a callback that evaluates the length in the model of a view element with the given name.\n\t *\n\t * The callback is fired with one argument, which is a view element instance. The callback is expected to return\n\t * a number representing the length of the view element in the model.\n\t *\n\t * ```ts\n\t * // List item in view may contain nested list, which have other list items. In model though,\n\t * // the lists are represented by flat structure. Because of those differences, length of list view element\n\t * // may be greater than one. In the callback it's checked how many nested list items are in evaluated list item.\n\t *\n\t * function getViewListItemLength( element ) {\n\t * \tlet length = 1;\n\t *\n\t * \tfor ( let child of element.getChildren() ) {\n\t * \t\tif ( child.name == 'ul' || child.name == 'ol' ) {\n\t * \t\t\tfor ( let item of child.getChildren() ) {\n\t * \t\t\t\tlength += getViewListItemLength( item );\n\t * \t\t\t}\n\t * \t\t}\n\t * \t}\n\t *\n\t * \treturn length;\n\t * }\n\t *\n\t * mapper.registerViewToModelLength( 'li', getViewListItemLength );\n\t * ```\n\t *\n\t * @param viewElementName Name of view element for which callback is registered.\n\t * @param lengthCallback Function return a length of view element instance in model.\n\t */\n\tpublic registerViewToModelLength(\n\t\tviewElementName: string,\n\t\tlengthCallback: ( element: ViewElement ) => number\n\t): void {\n\t\tthis._viewToModelLengthCallbacks.set( viewElementName, lengthCallback );\n\t}\n\n\t/**\n\t * For the given `viewPosition`, finds and returns the closest ancestor of this position that has a mapping to\n\t * the model.\n\t *\n\t * @param viewPosition Position for which a mapped ancestor should be found.\n\t */\n\tpublic findMappedViewAncestor( viewPosition: ViewPosition ): ViewElement {\n\t\tlet parent: any = viewPosition.parent;\n\n\t\twhile ( !this._viewToModelMapping.has( parent ) ) {\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn parent;\n\t}\n\n\t/**\n\t * Calculates model offset based on the view position and the block element.\n\t *\n\t * Example:\n\t *\n\t * ```html\n\t * <p>foo<b>ba|r</b></p> // _toModelOffset( b, 2, p ) -> 5\n\t * ```\n\t *\n\t * Is a sum of:\n\t *\n\t * ```html\n\t * <p>foo|<b>bar</b></p> // _toModelOffset( p, 3, p ) -> 3\n\t * <p>foo<b>ba|r</b></p> // _toModelOffset( b, 2, b ) -> 2\n\t * ```\n\t *\n\t * @param viewParent Position parent.\n\t * @param viewOffset Position offset.\n\t * @param viewBlock Block used as a base to calculate offset.\n\t * @returns Offset in the model.\n\t */\n\tprivate _toModelOffset(\n\t\tviewParent: ViewElement,\n\t\tviewOffset: number,\n\t\tviewBlock: ViewElement\n\t): number {\n\t\tif ( viewBlock != viewParent ) {\n\t\t\t// See example.\n\t\t\tconst offsetToParentStart = this._toModelOffset( viewParent.parent as any, viewParent.index!, viewBlock );\n\t\t\tconst offsetInParent = this._toModelOffset( viewParent, viewOffset, viewParent );\n\n\t\t\treturn offsetToParentStart + offsetInParent;\n\t\t}\n\n\t\t// viewBlock == viewParent, so we need to calculate the offset in the parent element.\n\n\t\t// If the position is a text it is simple (\"ba|r\" -> 2).\n\t\tif ( viewParent.is( '$text' ) ) {\n\t\t\treturn viewOffset;\n\t\t}\n\n\t\t// If the position is in an element we need to sum lengths of siblings ( <b> bar </b> foo | -> 3 + 3 = 6 ).\n\t\tlet modelOffset = 0;\n\n\t\tfor ( let i = 0; i < viewOffset; i++ ) {\n\t\t\tmodelOffset += this.getModelLength( viewParent.getChild( i ) as any );\n\t\t}\n\n\t\treturn modelOffset;\n\t}\n\n\t/**\n\t * Gets the length of the view element in the model.\n\t *\n\t * The length is calculated as follows:\n\t * * if a {@link #registerViewToModelLength length mapping callback} is provided for the given `viewNode`, it is used to\n\t * evaluate the model length (`viewNode` is used as first and only parameter passed to the callback),\n\t * * length of a {@link module:engine/view/text~Text text node} is equal to the length of its\n\t * {@link module:engine/view/text~Text#data data},\n\t * * length of a {@link module:engine/view/uielement~UIElement ui element} is equal to 0,\n\t * * length of a mapped {@link module:engine/view/element~Element element} is equal to 1,\n\t * * length of a non-mapped {@link module:engine/view/element~Element element} is equal to the length of its children.\n\t *\n\t * Examples:\n\t *\n\t * ```\n\t * foo                          -> 3 // Text length is equal to its data length.\n\t * <p>foo</p>                   -> 1 // Length of an element which is mapped is by default equal to 1.\n\t * <b>foo</b>                   -> 3 // Length of an element which is not mapped is a length of its children.\n\t * <div><p>x</p><p>y</p></div>  -> 2 // Assuming that <div> is not mapped and <p> are mapped.\n\t * ```\n\t *\n\t * @param viewNode View node.\n\t * @returns Length of the node in the tree model.\n\t */\n\tpublic getModelLength( viewNode: ViewNode | ViewDocumentFragment ): number {\n\t\tif ( this._viewToModelLengthCallbacks.get( ( viewNode as any ).name ) ) {\n\t\t\tconst callback = this._viewToModelLengthCallbacks.get( ( viewNode as any ).name )!;\n\n\t\t\treturn callback( viewNode as ViewElement );\n\t\t} else if ( this._viewToModelMapping.has( viewNode as ViewElement ) ) {\n\t\t\treturn 1;\n\t\t} else if ( viewNode.is( '$text' ) ) {\n\t\t\treturn viewNode.data.length;\n\t\t} else if ( viewNode.is( 'uiElement' ) ) {\n\t\t\treturn 0;\n\t\t} else {\n\t\t\tlet len = 0;\n\n\t\t\tfor ( const child of ( viewNode as ViewElement ).getChildren() ) {\n\t\t\t\tlen += this.getModelLength( child );\n\t\t\t}\n\n\t\t\treturn len;\n\t\t}\n\t}\n\n\t/**\n\t * Finds the position in the view node (or in its children) with the expected model offset.\n\t *\n\t * Example:\n\t *\n\t * ```\n\t * <p>fo<b>bar</b>bom</p> -> expected offset: 4\n\t *\n\t * findPositionIn( p, 4 ):\n\t * <p>|fo<b>bar</b>bom</p> -> expected offset: 4, actual offset: 0\n\t * <p>fo|<b>bar</b>bom</p> -> expected offset: 4, actual offset: 2\n\t * <p>fo<b>bar</b>|bom</p> -> expected offset: 4, actual offset: 5 -> we are too far\n\t *\n\t * findPositionIn( b, 4 - ( 5 - 3 ) ):\n\t * <p>fo<b>|bar</b>bom</p> -> expected offset: 2, actual offset: 0\n\t * <p>fo<b>bar|</b>bom</p> -> expected offset: 2, actual offset: 3 -> we are too far\n\t *\n\t * findPositionIn( bar, 2 - ( 3 - 3 ) ):\n\t * We are in the text node so we can simple find the offset.\n\t * <p>fo<b>ba|r</b>bom</p> -> expected offset: 2, actual offset: 2 -> position found\n\t * ```\n\t *\n\t * @param viewParent Tree view element in which we are looking for the position.\n\t * @param expectedOffset Expected offset.\n\t * @returns Found position.\n\t */\n\tpublic findPositionIn( viewParent: ViewNode | ViewDocumentFragment, expectedOffset: number ): ViewPosition {\n\t\t// Last scanned view node.\n\t\tlet viewNode: ViewNode;\n\t\t// Length of the last scanned view node.\n\t\tlet lastLength = 0;\n\n\t\tlet modelOffset = 0;\n\t\tlet viewOffset = 0;\n\n\t\t// In the text node it is simple: the offset in the model equals the offset in the text.\n\t\tif ( viewParent.is( '$text' ) ) {\n\t\t\treturn new ViewPosition( viewParent, expectedOffset );\n\t\t}\n\n\t\t// In other cases we add lengths of child nodes to find the proper offset.\n\n\t\t// If it is smaller we add the length.\n\t\twhile ( modelOffset < expectedOffset ) {\n\t\t\tviewNode = ( viewParent as ViewElement | ViewDocumentFragment ).getChild( viewOffset )!;\n\t\t\tlastLength = this.getModelLength( viewNode );\n\t\t\tmodelOffset += lastLength;\n\t\t\tviewOffset++;\n\t\t}\n\n\t\t// If it equals we found the position.\n\t\tif ( modelOffset == expectedOffset ) {\n\t\t\treturn this._moveViewPositionToTextNode( new ViewPosition( viewParent, viewOffset ) );\n\t\t}\n\t\t// If it is higher we need to enter last child.\n\t\telse {\n\t\t\t// ( modelOffset - lastLength ) is the offset to the child we enter,\n\t\t\t// so we subtract it from the expected offset to fine the offset in the child.\n\t\t\treturn this.findPositionIn( viewNode!, expectedOffset - ( modelOffset - lastLength ) );\n\t\t}\n\t}\n\n\t/**\n\t * Because we prefer positions in the text nodes over positions next to text nodes, if the view position was next to a text node,\n\t * it moves it into the text node instead.\n\t *\n\t * ```\n\t * <p>[]<b>foo</b></p> -> <p>[]<b>foo</b></p> // do not touch if position is not directly next to text\n\t * <p>foo[]<b>foo</b></p> -> <p>foo{}<b>foo</b></p> // move to text node\n\t * <p><b>[]foo</b></p> -> <p><b>{}foo</b></p> // move to text node\n\t * ```\n\t *\n\t * @param viewPosition Position potentially next to the text node.\n\t * @returns Position in the text node if possible.\n\t */\n\tprivate _moveViewPositionToTextNode( viewPosition: ViewPosition ): ViewPosition {\n\t\t// If the position is just after a text node, put it at the end of that text node.\n\t\t// If the position is just before a text node, put it at the beginning of that text node.\n\t\tconst nodeBefore = viewPosition.nodeBefore;\n\t\tconst nodeAfter = viewPosition.nodeAfter;\n\n\t\tif ( nodeBefore instanceof ViewText ) {\n\t\t\treturn new ViewPosition( nodeBefore, nodeBefore.data.length );\n\t\t} else if ( nodeAfter instanceof ViewText ) {\n\t\t\treturn new ViewPosition( nodeAfter, 0 );\n\t\t}\n\n\t\t// Otherwise, just return the given position.\n\t\treturn viewPosition;\n\t}\n}\n\n/**\n * Fired for each model-to-view position mapping request. The purpose of this event is to enable custom model-to-view position\n * mapping. Callbacks added to this event take {@link module:engine/model/position~Position model position} and are expected to\n * calculate the {@link module:engine/view/position~Position view position}. The calculated view position should be added as\n * a `viewPosition` value in the `data` object that is passed as one of parameters to the event callback.\n *\n * ```ts\n * // Assume that \"captionedImage\" model element is converted to <img> and following <span> elements in view,\n * // and the model element is bound to <img> element. Force mapping model positions inside \"captionedImage\" to that\n * // <span> element.\n * mapper.on( 'modelToViewPosition', ( evt, data ) => {\n * \tconst positionParent = modelPosition.parent;\n *\n * \tif ( positionParent.name == 'captionedImage' ) {\n * \t\tconst viewImg = data.mapper.toViewElement( positionParent );\n * \t\tconst viewCaption = viewImg.nextSibling; // The <span> element.\n *\n * \t\tdata.viewPosition = new ViewPosition( viewCaption, modelPosition.offset );\n *\n * \t\t// Stop the event if other callbacks should not modify calculated value.\n * \t\tevt.stop();\n * \t}\n * } );\n * ```\n *\n * **Note:** keep in mind that sometimes a \"phantom\" model position is being converted. A \"phantom\" model position is\n * a position that points to a nonexistent place in model. Such a position might still be valid for conversion, though\n * (it would point to a correct place in the view when converted). One example of such a situation is when a range is\n * removed from the model, there may be a need to map the range's end (which is no longer a valid model position). To\n * handle such situations, check the `data.isPhantom` flag:\n *\n * ```ts\n * // Assume that there is a \"customElement\" model element and whenever the position is before it,\n * // we want to move it to the inside of the view element bound to \"customElement\".\n * mapper.on( 'modelToViewPosition', ( evt, data ) => {\n * \tif ( data.isPhantom ) {\n * \t\treturn;\n * \t}\n *\n * \t// Below line might crash for phantom position that does not exist in model.\n * \tconst sibling = data.modelPosition.nodeBefore;\n *\n * \t// Check if this is the element we are interested in.\n * \tif ( !sibling.is( 'element', 'customElement' ) ) {\n * \t\treturn;\n * \t}\n *\n * \tconst viewElement = data.mapper.toViewElement( sibling );\n *\n * \tdata.viewPosition = new ViewPosition( sibling, 0 );\n *\n * \tevt.stop();\n * } );\n * ```\n *\n * **Note:** the default mapping callback is provided with a `low` priority setting and does not cancel the event, so it is possible to\n * attach a custom callback after a default callback and also use `data.viewPosition` calculated by the default callback\n * (for example to fix it).\n *\n * **Note:** the default mapping callback will not fire if `data.viewPosition` is already set.\n *\n * **Note:** these callbacks are called **very often**. For efficiency reasons, it is advised to use them only when position\n * mapping between the given model and view elements is unsolvable by using just elements mapping and default algorithm.\n * Also, the condition that checks if a special case scenario happened should be as simple as possible.\n *\n * @eventName ~Mapper#modelToViewPosition\n */\nexport type MapperModelToViewPositionEvent = {\n\tname: 'modelToViewPosition';\n\targs: [ MapperModelToViewPositionEventData ];\n};\n\n/**\n * Data pipeline object that can store and pass data between callbacks. The callback should add\n * the `viewPosition` value to that object with calculated the {@link module:engine/view/position~Position view position}.\n */\nexport type MapperModelToViewPositionEventData = {\n\n\t/**\n\t * Mapper instance that fired the event.\n\t */\n\tmapper: Mapper;\n\n\t/**\n\t * The model position.\n\t */\n\tmodelPosition: ModelPosition;\n\n\t/**\n\t * The callback should add the `viewPosition` value to that object with calculated the\n\t * {@link module:engine/view/position~Position view position}.\n\t */\n\tviewPosition?: ViewPosition;\n\n\t/**\n\t * Should be set to `true` if the model position to map is pointing to a place\n\t * in model tree which no longer exists. For example, it could be an end of a removed model range.\n\t */\n\tisPhantom?: boolean;\n};\n\n/**\n * Fired for each view-to-model position mapping request. See {@link module:engine/conversion/mapper~Mapper#event:modelToViewPosition}.\n *\n * ```ts\n * // See example in `modelToViewPosition` event description.\n * // This custom mapping will map positions from <span> element next to <img> to the \"captionedImage\" element.\n * mapper.on( 'viewToModelPosition', ( evt, data ) => {\n * \tconst positionParent = viewPosition.parent;\n *\n * \tif ( positionParent.hasClass( 'image-caption' ) ) {\n * \t\tconst viewImg = positionParent.previousSibling;\n * \t\tconst modelImg = data.mapper.toModelElement( viewImg );\n *\n * \t\tdata.modelPosition = new ModelPosition( modelImg, viewPosition.offset );\n * \t\tevt.stop();\n * \t}\n * } );\n * ```\n *\n * **Note:** the default mapping callback is provided with a `low` priority setting and does not cancel the event, so it is possible to\n * attach a custom callback after the default callback and also use `data.modelPosition` calculated by the default callback\n * (for example to fix it).\n *\n * **Note:** the default mapping callback will not fire if `data.modelPosition` is already set.\n *\n * **Note:** these callbacks are called **very often**. For efficiency reasons, it is advised to use them only when position\n * mapping between the given model and view elements is unsolvable by using just elements mapping and default algorithm.\n * Also, the condition that checks if special case scenario happened should be as simple as possible.\n *\n * @eventName ~Mapper#viewToModelPosition\n */\nexport type MapperViewToModelPositionEvent = {\n\tname: 'viewToModelPosition';\n\targs: [ MapperViewToModelPositionEventData ];\n};\n\n/**\n * Data pipeline object that can store and pass data between callbacks. The callback should add\n * `modelPosition` value to that object with calculated {@link module:engine/model/position~Position model position}.\n */\nexport type MapperViewToModelPositionEventData = {\n\n\t/**\n\t * Mapper instance that fired the event.\n\t */\n\tmapper: Mapper;\n\n\t/**\n\t * The callback should add `modelPosition` value to that object with calculated\n\t * {@link module:engine/model/position~Position model position}.\n\t */\n\tmodelPosition?: ModelPosition;\n\n\t/**\n\t * The view position.\n\t */\n\tviewPosition: ViewPosition;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/modelconsumable\n */\n\nimport TextProxy from '../model/textproxy';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Item from '../model/item';\nimport type Selection from '../model/selection';\nimport type DocumentSelection from '../model/documentselection';\nimport type Range from '../model/range';\n\n/**\n * Manages a list of consumable values for the {@link module:engine/model/item~Item model items}.\n *\n * Consumables are various aspects of the model. A model item can be broken down into separate, single properties that might be\n * taken into consideration when converting that item.\n *\n * `ModelConsumable` is used by {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} while analyzing the changed\n * parts of {@link module:engine/model/document~Document the document}. The added / changed / removed model items are broken down\n * into singular properties (the item itself and its attributes). All those parts are saved in `ModelConsumable`. Then,\n * during conversion, when the given part of a model item is converted (i.e. the view element has been inserted into the view,\n * but without attributes), the consumable value is removed from `ModelConsumable`.\n *\n * For model items, `ModelConsumable` stores consumable values of one of following types: `insert`, `addattribute:<attributeKey>`,\n * `changeattributes:<attributeKey>`, `removeattributes:<attributeKey>`.\n *\n * In most cases, it is enough to let th {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}\n * gather consumable values, so there is no need to use\n * the {@link module:engine/conversion/modelconsumable~ModelConsumable#add add method} directly.\n * However, it is important to understand how consumable values can be\n * {@link module:engine/conversion/modelconsumable~ModelConsumable#consume consumed}.\n * See {@link module:engine/conversion/downcasthelpers default downcast converters} for more information.\n *\n * Keep in mind that one conversion event may have multiple callbacks (converters) attached to it. Each of those is\n * able to convert one or more parts of the model. However, when one of those callbacks actually converts\n * something, the others should not, because they would duplicate the results. Using `ModelConsumable` helps to avoid\n * this situation, because callbacks should only convert these values that were not yet consumed from `ModelConsumable`.\n *\n * Consuming multiple values in a single callback:\n *\n * ```ts\n * // Converter for custom `imageBlock` element that might have a `caption` element inside which changes\n * // how the image is displayed in the view:\n * //\n * // Model:\n * //\n * // [imageBlock]\n * //   └─ [caption]\n * //       └─ foo\n * //\n * // View:\n * //\n * // <figure>\n * //   ├─ <img />\n * //   └─ <caption>\n * //       └─ foo\n * modelConversionDispatcher.on( 'insert:imageBlock', ( evt, data, conversionApi ) => {\n * \t// First, consume the `imageBlock` element.\n * \tconversionApi.consumable.consume( data.item, 'insert' );\n *\n * \t// Just create normal image element for the view.\n * \t// Maybe it will be \"decorated\" later.\n * \tconst viewImage = new ViewElement( 'img' );\n * \tconst insertPosition = conversionApi.mapper.toViewPosition( data.range.start );\n * \tconst viewWriter = conversionApi.writer;\n *\n * \t// Check if the `imageBlock` element has children.\n * \tif ( data.item.childCount > 0 ) {\n * \t\tconst modelCaption = data.item.getChild( 0 );\n *\n * \t\t// `modelCaption` insertion change is consumed from consumable values.\n * \t\t// It will not be converted by other converters, but it's children (probably some text) will be.\n * \t\t// Through mapping, converters for text will know where to insert contents of `modelCaption`.\n * \t\tif ( conversionApi.consumable.consume( modelCaption, 'insert' ) ) {\n * \t\t\tconst viewCaption = new ViewElement( 'figcaption' );\n *\n * \t\t\tconst viewImageHolder = new ViewElement( 'figure', null, [ viewImage, viewCaption ] );\n *\n * \t\t\tconversionApi.mapper.bindElements( modelCaption, viewCaption );\n * \t\t\tconversionApi.mapper.bindElements( data.item, viewImageHolder );\n * \t\t\tviewWriter.insert( insertPosition, viewImageHolder );\n * \t\t}\n * \t} else {\n * \t\tconversionApi.mapper.bindElements( data.item, viewImage );\n * \t\tviewWriter.insert( insertPosition, viewImage );\n * \t}\n *\n * \tevt.stop();\n * } );\n * ```\n */\nexport default class ModelConsumable {\n\t/**\n\t * Contains list of consumable values.\n\t */\n\tprivate _consumable = new Map<any, Map<string, boolean>>();\n\n\t/**\n\t * For each {@link module:engine/model/textproxy~TextProxy} added to `ModelConsumable`, this registry holds a parent\n\t * of that `TextProxy` and the start and end indices of that `TextProxy`. This allows identification of the `TextProxy`\n\t * instances that point to the same part of the model but are different instances. Each distinct `TextProxy`\n\t * is given a unique `Symbol` which is then registered as consumable. This process is transparent for the `ModelConsumable`\n\t * API user because whenever `TextProxy` is added, tested, consumed or reverted, the internal mechanisms of\n\t * `ModelConsumable` translate `TextProxy` to that unique `Symbol`.\n\t */\n\tprivate _textProxyRegistry = new Map<number | null, Map<number | null, Map<unknown, symbol>>>();\n\n\t/**\n\t * Adds a consumable value to the consumables list and links it with a given model item.\n\t *\n\t * ```ts\n\t * modelConsumable.add( modelElement, 'insert' ); // Add `modelElement` insertion change to consumable values.\n\t * modelConsumable.add( modelElement, 'addAttribute:bold' ); // Add `bold` attribute insertion on `modelElement` change.\n\t * modelConsumable.add( modelElement, 'removeAttribute:bold' ); // Add `bold` attribute removal on `modelElement` change.\n\t * modelConsumable.add( modelSelection, 'selection' ); // Add `modelSelection` to consumable values.\n\t * modelConsumable.add( modelRange, 'range' ); // Add `modelRange` to consumable values.\n\t * ```\n\t *\n\t * @param item Model item, range or selection that has the consumable.\n\t * @param type Consumable type. Will be normalized to a proper form, that is either `<word>` or `<part>:<part>`.\n\t * Second colon and everything after will be cut. Passing event name is a safe and good practice.\n\t */\n\tpublic add(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): void {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tif ( !this._consumable.has( item ) ) {\n\t\t\tthis._consumable.set( item, new Map() );\n\t\t}\n\n\t\tthis._consumable.get( item )!.set( type, true );\n\t}\n\n\t/**\n\t * Removes a given consumable value from a given model item.\n\t *\n\t * ```ts\n\t * modelConsumable.consume( modelElement, 'insert' ); // Remove `modelElement` insertion change from consumable values.\n\t * modelConsumable.consume( modelElement, 'addAttribute:bold' ); // Remove `bold` attribute insertion on `modelElement` change.\n\t * modelConsumable.consume( modelElement, 'removeAttribute:bold' ); // Remove `bold` attribute removal on `modelElement` change.\n\t * modelConsumable.consume( modelSelection, 'selection' ); // Remove `modelSelection` from consumable values.\n\t * modelConsumable.consume( modelRange, 'range' ); // Remove 'modelRange' from consumable values.\n\t * ```\n\t *\n\t * @param item Model item, range or selection from which consumable will be consumed.\n\t * @param type Consumable type. Will be normalized to a proper form, that is either `<word>` or `<part>:<part>`.\n\t * Second colon and everything after will be cut. Passing event name is a safe and good practice.\n\t * @returns `true` if consumable value was available and was consumed, `false` otherwise.\n\t */\n\tpublic consume(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): boolean {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tif ( this.test( item, type ) ) {\n\t\t\tthis._consumable.get( item )!.set( type, false );\n\n\t\t\treturn true;\n\t\t} else {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\t/**\n\t * Tests whether there is a consumable value of a given type connected with a given model item.\n\t *\n\t * ```ts\n\t * modelConsumable.test( modelElement, 'insert' ); // Check for `modelElement` insertion change.\n\t * modelConsumable.test( modelElement, 'addAttribute:bold' ); // Check for `bold` attribute insertion on `modelElement` change.\n\t * modelConsumable.test( modelElement, 'removeAttribute:bold' ); // Check for `bold` attribute removal on `modelElement` change.\n\t * modelConsumable.test( modelSelection, 'selection' ); // Check if `modelSelection` is consumable.\n\t * modelConsumable.test( modelRange, 'range' ); // Check if `modelRange` is consumable.\n\t * ```\n\t *\n\t * @param item Model item, range or selection to be tested.\n\t * @param type Consumable type. Will be normalized to a proper form, that is either `<word>` or `<part>:<part>`.\n\t * Second colon and everything after will be cut. Passing event name is a safe and good practice.\n\t * @returns `null` if such consumable was never added, `false` if the consumable values was\n\t * already consumed or `true` if it was added and not consumed yet.\n\t */\n\tpublic test(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): boolean | null {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tconst itemConsumables = this._consumable.get( item );\n\n\t\tif ( itemConsumables === undefined ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst value = itemConsumables.get( type );\n\n\t\tif ( value === undefined ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Reverts consuming of a consumable value.\n\t *\n\t * ```ts\n\t * modelConsumable.revert( modelElement, 'insert' ); // Revert consuming `modelElement` insertion change.\n\t * modelConsumable.revert( modelElement, 'addAttribute:bold' ); // Revert consuming `bold` attribute insert from `modelElement`.\n\t * modelConsumable.revert( modelElement, 'removeAttribute:bold' ); // Revert consuming `bold` attribute remove from `modelElement`.\n\t * modelConsumable.revert( modelSelection, 'selection' ); // Revert consuming `modelSelection`.\n\t * modelConsumable.revert( modelRange, 'range' ); // Revert consuming `modelRange`.\n\t * ```\n\t *\n\t * @param item Model item, range or selection to be reverted.\n\t * @param type Consumable type.\n\t * @returns `true` if consumable has been reversed, `false` otherwise. `null` if the consumable has\n\t * never been added.\n\t */\n\tpublic revert(\n\t\titem: Item | Selection | DocumentSelection | Range,\n\t\ttype: string\n\t): boolean | null {\n\t\ttype = _normalizeConsumableType( type );\n\n\t\tif ( item instanceof TextProxy ) {\n\t\t\titem = this._getSymbolForTextProxy( item ) as any;\n\t\t}\n\n\t\tconst test = this.test( item, type );\n\n\t\tif ( test === false ) {\n\t\t\tthis._consumable.get( item )!.set( type, true );\n\n\t\t\treturn true;\n\t\t} else if ( test === true ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Verifies if all events from the specified group were consumed.\n\t *\n\t * @param eventGroup The events group to verify.\n\t */\n\tpublic verifyAllConsumed( eventGroup: string ): void {\n\t\tconst items = [];\n\n\t\tfor ( const [ item, consumables ] of this._consumable ) {\n\t\t\tfor ( const [ event, canConsume ] of consumables ) {\n\t\t\t\tconst eventPrefix = event.split( ':' )[ 0 ];\n\n\t\t\t\tif ( canConsume && eventGroup == eventPrefix ) {\n\t\t\t\t\titems.push( {\n\t\t\t\t\t\tevent,\n\t\t\t\t\t\titem: item.name || item.description\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( items.length ) {\n\t\t\t/**\n\t\t\t * Some of the {@link module:engine/model/item~Item model items} were not consumed while downcasting the model to view.\n\t\t\t *\n\t\t\t * This might be the effect of:\n\t\t\t *\n\t\t\t * * A missing converter for some model elements. Make sure that you registered downcast converters for all model elements.\n\t\t\t * * A custom converter that does not consume converted items. Make sure that you\n\t\t\t * {@link module:engine/conversion/modelconsumable~ModelConsumable#consume consumed} all model elements that you converted\n\t\t\t * from the model to the view.\n\t\t\t * * A custom converter that called `event.stop()`. When providing a custom converter, keep in mind that you should not stop\n\t\t\t * the event. If you stop it then the default converter at the `lowest` priority will not trigger the conversion of this node's\n\t\t\t * attributes and child nodes.\n\t\t\t *\n\t\t\t * @error conversion-model-consumable-not-consumed\n\t\t\t * @param {Array.<module:engine/model/item~Item>} items Items that were not consumed.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-model-consumable-not-consumed', null, { items } );\n\t\t}\n\t}\n\n\t/**\n\t * Gets a unique symbol for the passed {@link module:engine/model/textproxy~TextProxy} instance. All `TextProxy` instances that\n\t * have same parent, same start index and same end index will get the same symbol.\n\t *\n\t * Used internally to correctly consume `TextProxy` instances.\n\t *\n\t * @internal\n\t * @param textProxy `TextProxy` instance to get a symbol for.\n\t * @returns Symbol representing all equal instances of `TextProxy`.\n\t */\n\tpublic _getSymbolForTextProxy( textProxy: TextProxy ): symbol {\n\t\tlet symbol = null;\n\n\t\tconst startMap = this._textProxyRegistry.get( textProxy.startOffset );\n\n\t\tif ( startMap ) {\n\t\t\tconst endMap = startMap.get( textProxy.endOffset );\n\n\t\t\tif ( endMap ) {\n\t\t\t\tsymbol = endMap.get( textProxy.parent );\n\t\t\t}\n\t\t}\n\n\t\tif ( !symbol ) {\n\t\t\tsymbol = this._addSymbolForTextProxy( textProxy );\n\t\t}\n\n\t\treturn symbol;\n\t}\n\n\t/**\n\t * Adds a symbol for the given {@link module:engine/model/textproxy~TextProxy} instance.\n\t *\n\t * Used internally to correctly consume `TextProxy` instances.\n\t *\n\t * @param textProxy Text proxy instance.\n\t * @returns Symbol generated for given `TextProxy`.\n\t */\n\tprivate _addSymbolForTextProxy( textProxy: TextProxy ): symbol {\n\t\tconst start = textProxy.startOffset;\n\t\tconst end = textProxy.endOffset;\n\t\tconst parent = textProxy.parent;\n\n\t\tconst symbol = Symbol( '$textProxy:' + textProxy.data );\n\t\tlet startMap: Map<number | null, Map<unknown, symbol>> | undefined;\n\t\tlet endMap: Map<unknown, symbol> | undefined;\n\n\t\tstartMap = this._textProxyRegistry.get( start );\n\n\t\tif ( !startMap ) {\n\t\t\tstartMap = new Map();\n\t\t\tthis._textProxyRegistry.set( start, startMap );\n\t\t}\n\n\t\tendMap = startMap.get( end );\n\n\t\tif ( !endMap ) {\n\t\t\tendMap = new Map();\n\t\t\tstartMap.set( end, endMap );\n\t\t}\n\n\t\tendMap.set( parent, symbol );\n\n\t\treturn symbol;\n\t}\n}\n\n/**\n * Returns a normalized consumable type name from the given string. A normalized consumable type name is a string that has\n * at most one colon, for example: `insert` or `addMarker:highlight`. If a string to normalize has more \"parts\" (more colons),\n * the further parts are dropped, for example: `addattribute:bold:$text` -> `addattributes:bold`.\n *\n * @param type Consumable type.\n * @returns Normalized consumable type.\n */\nfunction _normalizeConsumableType( type: string ) {\n\tconst parts = type.split( ':' );\n\n\t// For inserts allow passing event name, it's stored in the context of a specified element so the element name is not needed.\n\tif ( parts[ 0 ] == 'insert' ) {\n\t\treturn parts[ 0 ];\n\t}\n\n\t// Markers are identified by the whole name (otherwise we would consume the whole markers group).\n\tif ( parts[ 0 ] == 'addMarker' || parts[ 0 ] == 'removeMarker' ) {\n\t\treturn type;\n\t}\n\n\treturn parts.length > 1 ? parts[ 0 ] + ':' + parts[ 1 ] : parts[ 0 ];\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/downcastdispatcher\n */\n\nimport Consumable from './modelconsumable';\nimport Range from '../model/range';\n\nimport { EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Differ, DiffItem } from '../model/differ';\nimport type { default as MarkerCollection, Marker } from '../model/markercollection';\nimport type { TreeWalkerValue } from '../model/treewalker';\nimport type DocumentSelection from '../model/documentselection';\nimport type DowncastWriter from '../view/downcastwriter';\nimport type Element from '../model/element';\nimport type Item from '../model/item';\nimport type Mapper from './mapper';\nimport type Position from '../model/position';\nimport type Schema from '../model/schema';\nimport type Selection from '../model/selection';\nimport type ViewElement from '../view/element';\n\n/**\n * The downcast dispatcher is a central point of downcasting (conversion from the model to the view), which is a process of reacting\n * to changes in the model and firing a set of events. The callbacks listening to these events are called converters. The\n * converters' role is to convert the model changes to changes in view (for example, adding view nodes or\n * changing attributes on view elements).\n *\n * During the conversion process, downcast dispatcher fires events basing on the state of the model and prepares\n * data for these events. It is important to understand that the events are connected with the changes done on the model,\n * for example: \"a node has been inserted\" or \"an attribute has changed\". This is in contrary to upcasting (a view-to-model conversion)\n * where you convert the view state (view nodes) to a model tree.\n *\n * The events are prepared basing on a diff created by the {@link module:engine/model/differ~Differ Differ}, which buffers them\n * and then passes to the downcast dispatcher as a diff between the old model state and the new model state.\n *\n * Note that because the changes are converted, there is a need to have a mapping between the model structure and the view structure.\n * To map positions and elements during the downcast (a model-to-view conversion), use {@link module:engine/conversion/mapper~Mapper}.\n *\n * Downcast dispatcher fires the following events for model tree changes:\n *\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`} &ndash;\n * If a range of nodes was inserted to the model tree.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:remove `remove`} &ndash;\n * If a range of nodes was removed from the model tree.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`} &ndash;\n * If an attribute was added, changed or removed from a model node.\n *\n * For {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`}\n * and {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`},\n * the downcast dispatcher generates {@link module:engine/conversion/modelconsumable~ModelConsumable consumables}.\n * These are used to have control over which changes have already been consumed. It is useful when some converters\n * overwrite others or convert multiple changes (for example, it converts an insertion of an element and also converts that\n * element's attributes during the insertion).\n *\n * Additionally, downcast dispatcher fires events for {@link module:engine/model/markercollection~Marker marker} changes:\n *\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker `addMarker`} &ndash; If a marker was added.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:removeMarker `removeMarker`} &ndash; If a marker was\n * removed.\n *\n * Note that changing a marker is done through removing the marker from the old range and adding it to the new range,\n * so both of these events are fired.\n *\n * Finally, a downcast dispatcher also handles firing events for the {@link module:engine/model/selection model selection}\n * conversion:\n *\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:selection `selection`}\n * &ndash; Converts the selection from the model to the view.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`}\n * &ndash; Fired for every selection attribute.\n * * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker `addMarker`}\n * &ndash; Fired for every marker that contains a selection.\n *\n * Unlike the model tree and the markers, the events for selection are not fired for changes but for a selection state.\n *\n * When providing custom listeners for a downcast dispatcher, remember to check whether a given change has not been\n * {@link module:engine/conversion/modelconsumable~ModelConsumable#consume consumed} yet.\n *\n * When providing custom listeners for a downcast dispatcher, keep in mind that you **should not** stop the event. If you stop it,\n * then the default converter at the `lowest` priority will not trigger the conversion of this node's attributes and child nodes.\n *\n * When providing custom listeners for a downcast dispatcher, remember to use the provided\n * {@link module:engine/view/downcastwriter~DowncastWriter view downcast writer} to apply changes to the view document.\n *\n * You can read more about conversion in the following guide:\n *\n * * {@glink framework/deep-dive/conversion/downcast Downcast conversion}\n *\n * An example of a custom converter for the downcast dispatcher:\n *\n * ```ts\n * // You will convert inserting a \"paragraph\" model element into the model.\n * downcastDispatcher.on( 'insert:paragraph', ( evt, data, conversionApi ) => {\n * \t// Remember to check whether the change has not been consumed yet and consume it.\n * \tif ( !conversionApi.consumable.consume( data.item, 'insert' ) ) {\n * \t\treturn;\n * \t}\n *\n * \t// Translate the position in the model to a position in the view.\n * \tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n *\n * \t// Create a <p> element that will be inserted into the view at the `viewPosition`.\n * \tconst viewElement = conversionApi.writer.createContainerElement( 'p' );\n *\n * \t// Bind the newly created view element to the model element so positions will map accordingly in the future.\n * \tconversionApi.mapper.bindElements( data.item, viewElement );\n *\n * \t// Add the newly created view element to the view.\n * \tconversionApi.writer.insert( viewPosition, viewElement );\n * } );\n * ```\n */\nexport default class DowncastDispatcher extends EmitterMixin() {\n\t/**\n\t * A template for an interface passed by the dispatcher to the event callbacks.\n\t *\n\t * @internal\n\t */\n\tpublic readonly _conversionApi: Pick<DowncastConversionApi, 'dispatcher' | 'mapper' | 'schema'>;\n\n\t/**\n\t * A map of already fired events for a given `ModelConsumable`.\n\t */\n\tprivate readonly _firedEventsMap: WeakMap<DowncastConversionApi, Map<unknown, Set<string>>>;\n\n\t/**\n\t * Creates a downcast dispatcher instance.\n\t *\n\t * @see module:engine/conversion/downcastdispatcher~DowncastConversionApi\n\t *\n\t * @param conversionApi Additional properties for an interface that will be passed to events fired\n\t * by the downcast dispatcher.\n\t */\n\tconstructor( conversionApi: Pick<DowncastConversionApi, 'mapper' | 'schema'> ) {\n\t\tsuper();\n\n\t\tthis._conversionApi = { dispatcher: this, ...conversionApi };\n\t\tthis._firedEventsMap = new WeakMap();\n\t}\n\n\t/**\n\t * Converts changes buffered in the given {@link module:engine/model/differ~Differ model differ}\n\t * and fires conversion events based on it.\n\t *\n\t * @fires insert\n\t * @fires remove\n\t * @fires attribute\n\t * @fires addMarker\n\t * @fires removeMarker\n\t * @fires reduceChanges\n\t * @param differ The differ object with buffered changes.\n\t * @param markers Markers related to the model fragment to convert.\n\t * @param writer The view writer that should be used to modify the view document.\n\t */\n\tpublic convertChanges(\n\t\tdiffer: Differ,\n\t\tmarkers: MarkerCollection,\n\t\twriter: DowncastWriter\n\t): void {\n\t\tconst conversionApi = this._createConversionApi( writer, differ.getRefreshedItems() );\n\n\t\t// Before the view is updated, remove markers which have changed.\n\t\tfor ( const change of differ.getMarkersToRemove() ) {\n\t\t\tthis._convertMarkerRemove( change.name, change.range, conversionApi );\n\t\t}\n\n\t\t// Let features modify the change list (for example to allow reconversion).\n\t\tconst changes = this._reduceChanges( differ.getChanges() );\n\n\t\t// Convert changes that happened on model tree.\n\t\tfor ( const entry of changes ) {\n\t\t\tif ( entry.type === 'insert' ) {\n\t\t\t\tthis._convertInsert( Range._createFromPositionAndShift( entry.position, entry.length ), conversionApi );\n\t\t\t} else if ( entry.type === 'reinsert' ) {\n\t\t\t\tthis._convertReinsert( Range._createFromPositionAndShift( entry.position, entry.length ), conversionApi );\n\t\t\t} else if ( entry.type === 'remove' ) {\n\t\t\t\tthis._convertRemove( entry.position, entry.length, entry.name, conversionApi );\n\t\t\t} else {\n\t\t\t\t// Defaults to 'attribute' change.\n\t\t\t\tthis._convertAttribute( entry.range, entry.attributeKey, entry.attributeOldValue, entry.attributeNewValue, conversionApi );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const markerName of conversionApi.mapper.flushUnboundMarkerNames() ) {\n\t\t\tconst markerRange = markers.get( markerName )!.getRange();\n\n\t\t\tthis._convertMarkerRemove( markerName, markerRange, conversionApi );\n\t\t\tthis._convertMarkerAdd( markerName, markerRange, conversionApi );\n\t\t}\n\n\t\t// After the view is updated, convert markers which have changed.\n\t\tfor ( const change of differ.getMarkersToAdd() ) {\n\t\t\tthis._convertMarkerAdd( change.name, change.range, conversionApi );\n\t\t}\n\n\t\t// Remove mappings for all removed view elements.\n\t\tconversionApi.mapper.flushDeferredBindings();\n\n\t\t// Verify if all insert consumables were consumed.\n\t\tconversionApi.consumable.verifyAllConsumed( 'insert' );\n\t}\n\n\t/**\n\t * Starts a conversion of a model range and the provided markers.\n\t *\n\t * @fires insert\n\t * @fires attribute\n\t * @fires addMarker\n\t * @param range The inserted range.\n\t * @param markers The map of markers that should be down-casted.\n\t * @param writer The view writer that should be used to modify the view document.\n\t * @param options Optional options object passed to `convertionApi.options`.\n\t */\n\tpublic convert(\n\t\trange: Range,\n\t\tmarkers: Map<string, Range>,\n\t\twriter: DowncastWriter,\n\t\toptions: DowncastConversionApi[ 'options' ] = {}\n\t): void {\n\t\tconst conversionApi = this._createConversionApi( writer, undefined, options );\n\n\t\tthis._convertInsert( range, conversionApi );\n\n\t\tfor ( const [ name, range ] of markers ) {\n\t\t\tthis._convertMarkerAdd( name, range, conversionApi );\n\t\t}\n\n\t\t// Verify if all insert consumables were consumed.\n\t\tconversionApi.consumable.verifyAllConsumed( 'insert' );\n\t}\n\n\t/**\n\t * Starts the model selection conversion.\n\t *\n\t * Fires events for a given {@link module:engine/model/selection~Selection selection} to start the selection conversion.\n\t *\n\t * @fires selection\n\t * @fires addMarker\n\t * @fires attribute\n\t * @param selection The selection to convert.\n\t * @param markers Markers connected with the converted model.\n\t * @param writer View writer that should be used to modify the view document.\n\t */\n\tpublic convertSelection(\n\t\tselection: Selection | DocumentSelection,\n\t\tmarkers: MarkerCollection,\n\t\twriter: DowncastWriter\n\t): void {\n\t\tconst markersAtSelection = Array.from( markers.getMarkersAtPosition( selection.getFirstPosition()! ) );\n\n\t\tconst conversionApi = this._createConversionApi( writer );\n\n\t\tthis._addConsumablesForSelection( conversionApi.consumable, selection, markersAtSelection );\n\n\t\tthis.fire<DowncastSelectionEvent>( 'selection', { selection }, conversionApi );\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const marker of markersAtSelection ) {\n\t\t\tconst markerRange = marker.getRange();\n\n\t\t\tif ( !shouldMarkerChangeBeConverted( selection.getFirstPosition()!, marker, conversionApi.mapper ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst data = {\n\t\t\t\titem: selection,\n\t\t\t\tmarkerName: marker.name,\n\t\t\t\tmarkerRange\n\t\t\t};\n\n\t\t\tif ( conversionApi.consumable.test( selection, 'addMarker:' + marker.name ) ) {\n\t\t\t\tthis.fire<DowncastAddMarkerEvent>( `addMarker:${ marker.name }`, data, conversionApi );\n\t\t\t}\n\t\t}\n\n\t\tfor ( const key of selection.getAttributeKeys() ) {\n\t\t\tconst data = {\n\t\t\t\titem: selection,\n\t\t\t\trange: selection.getFirstRange()!,\n\t\t\t\tattributeKey: key,\n\t\t\t\tattributeOldValue: null,\n\t\t\t\tattributeNewValue: selection.getAttribute( key )\n\t\t\t};\n\n\t\t\t// Do not fire event if the attribute has been consumed.\n\t\t\tif ( conversionApi.consumable.test( selection, 'attribute:' + data.attributeKey ) ) {\n\t\t\t\tthis.fire<DowncastAttributeEvent>( `attribute:${ data.attributeKey }:$text`, data, conversionApi );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Fires insertion conversion of a range of nodes.\n\t *\n\t * For each node in the range, {@link #event:insert `insert` event is fired}. For each attribute on each node,\n\t * {@link #event:attribute `attribute` event is fired}.\n\t *\n\t * @fires insert\n\t * @fires attribute\n\t * @param range The inserted range.\n\t * @param conversionApi The conversion API object.\n\t * @param options.doNotAddConsumables Whether the ModelConsumable should not get populated\n\t * for items in the provided range.\n\t */\n\tprivate _convertInsert(\n\t\trange: Range,\n\t\tconversionApi: DowncastConversionApi,\n\t\toptions: { doNotAddConsumables?: boolean } = {}\n\t): void {\n\t\tif ( !options.doNotAddConsumables ) {\n\t\t\t// Collect a list of things that can be consumed, consisting of nodes and their attributes.\n\t\t\tthis._addConsumablesForInsert( conversionApi.consumable, Array.from( range ) );\n\t\t}\n\n\t\t// Fire a separate insert event for each node and text fragment contained in the range.\n\t\tfor ( const data of Array.from( range.getWalker( { shallow: true } ) ).map( walkerValueToEventData ) ) {\n\t\t\tthis._testAndFire( 'insert', data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Fires conversion of a single node removal. Fires {@link #event:remove remove event} with provided data.\n\t *\n\t * @param position Position from which node was removed.\n\t * @param length Offset size of removed node.\n\t * @param name Name of removed node.\n\t * @param conversionApi The conversion API object.\n\t */\n\tprivate _convertRemove(\n\t\tposition: Position,\n\t\tlength: number,\n\t\tname: string,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\tthis.fire<DowncastRemoveEvent>( `remove:${ name }`, { position, length }, conversionApi );\n\t}\n\n\t/**\n\t * Starts a conversion of an attribute change on a given `range`.\n\t *\n\t * For each node in the given `range`, {@link #event:attribute attribute event} is fired with the passed data.\n\t *\n\t * @fires attribute\n\t * @param range Changed range.\n\t * @param key Key of the attribute that has changed.\n\t * @param oldValue Attribute value before the change or `null` if the attribute has not been set before.\n\t * @param newValue New attribute value or `null` if the attribute has been removed.\n\t * @param conversionApi The conversion API object.\n\t */\n\tprivate _convertAttribute(\n\t\trange: Range,\n\t\tkey: string,\n\t\toldValue: unknown,\n\t\tnewValue: unknown,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\t// Create a list with attributes to consume.\n\t\tthis._addConsumablesForRange( conversionApi.consumable, range, `attribute:${ key }` );\n\n\t\t// Create a separate attribute event for each node in the range.\n\t\tfor ( const value of range ) {\n\t\t\tconst data = {\n\t\t\t\titem: value.item,\n\t\t\t\trange: Range._createFromPositionAndShift( value.previousPosition, value.length! ),\n\t\t\t\tattributeKey: key,\n\t\t\t\tattributeOldValue: oldValue,\n\t\t\t\tattributeNewValue: newValue\n\t\t\t};\n\n\t\t\tthis._testAndFire( `attribute:${ key }`, data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Fires re-insertion conversion (with a `reconversion` flag passed to `insert` events)\n\t * of a range of elements (only elements on the range depth, without children).\n\t *\n\t * For each node in the range on its depth (without children), {@link #event:insert `insert` event} is fired.\n\t * For each attribute on each node, {@link #event:attribute `attribute` event} is fired.\n\t *\n\t * @fires insert\n\t * @fires attribute\n\t * @param range The range to reinsert.\n\t * @param conversionApi The conversion API object.\n\t */\n\tprivate _convertReinsert( range: Range, conversionApi: DowncastConversionApi ): void {\n\t\t// Convert the elements - without converting children.\n\t\tconst walkerValues = Array.from( range.getWalker( { shallow: true } ) );\n\n\t\t// Collect a list of things that can be consumed, consisting of nodes and their attributes.\n\t\tthis._addConsumablesForInsert( conversionApi.consumable, walkerValues );\n\n\t\t// Fire a separate insert event for each node and text fragment contained shallowly in the range.\n\t\tfor ( const data of walkerValues.map( walkerValueToEventData ) ) {\n\t\t\tthis._testAndFire( 'insert', { ...data, reconversion: true }, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Converts the added marker. Fires the {@link #event:addMarker `addMarker`} event for each item\n\t * in the marker's range. If the range is collapsed, a single event is dispatched. See the event description for more details.\n\t *\n\t * @fires addMarker\n\t * @param markerName Marker name.\n\t * @param markerRange The marker range.\n\t * @param conversionApi The conversion API object.\n\t */\n\tprivate _convertMarkerAdd(\n\t\tmarkerName: string,\n\t\tmarkerRange: Range,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\t// Do not convert if range is in graveyard.\n\t\tif ( markerRange.root.rootName == '$graveyard' ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// In markers' case, event name == consumable name.\n\t\tconst eventName = `addMarker:${ markerName }` as const;\n\n\t\t//\n\t\t// First, fire an event for the whole marker.\n\t\t//\n\t\tconversionApi.consumable.add( markerRange, eventName );\n\n\t\tthis.fire<DowncastAddMarkerEvent>( eventName, { markerName, markerRange }, conversionApi );\n\n\t\t//\n\t\t// Do not fire events for each item inside the range if the range got consumed.\n\t\t// Also consume the whole marker consumable if it wasn't consumed.\n\t\t//\n\t\tif ( !conversionApi.consumable.consume( markerRange, eventName ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t//\n\t\t// Then, fire an event for each item inside the marker range.\n\t\t//\n\t\tthis._addConsumablesForRange( conversionApi.consumable, markerRange, eventName );\n\n\t\tfor ( const item of markerRange.getItems() ) {\n\t\t\t// Do not fire event for already consumed items.\n\t\t\tif ( !conversionApi.consumable.test( item, eventName ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst data = { item, range: Range._createOn( item ), markerName, markerRange };\n\n\t\t\tthis.fire<DowncastAddMarkerEvent>( eventName, data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Fires the conversion of the marker removal. Fires the {@link #event:removeMarker `removeMarker`} event with the provided data.\n\t *\n\t * @fires removeMarker\n\t * @param markerName Marker name.\n\t * @param markerRange The marker range.\n\t * @param conversionApi The conversion API object.\n\t */\n\tprivate _convertMarkerRemove( markerName: string, markerRange: Range, conversionApi: DowncastConversionApi ) {\n\t\t// Do not convert if range is in graveyard.\n\t\tif ( markerRange.root.rootName == '$graveyard' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.fire<DowncastRemoveMarkerEvent>( `removeMarker:${ markerName }`, { markerName, markerRange }, conversionApi );\n\t}\n\n\t/**\n\t * Fires the reduction of changes buffered in the {@link module:engine/model/differ~Differ `Differ`}.\n\t *\n\t * Features can replace selected {@link module:engine/model/differ~DiffItem `DiffItem`}s with `reinsert` entries to trigger\n\t * reconversion. The {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n\t * `DowncastHelpers.elementToStructure()`} is using this event to trigger reconversion.\n\t *\n\t * @fires reduceChanges\n\t */\n\tprivate _reduceChanges( changes: Iterable<DiffItem> ): Iterable<DiffItem | DiffItemReinsert> {\n\t\tconst data: { changes: Iterable<DiffItem | DiffItemReinsert> } = { changes };\n\n\t\tthis.fire<DowncastReduceChangesEvent>( 'reduceChanges', data );\n\n\t\treturn data.changes;\n\t}\n\n\t/**\n\t * Populates provided {@link module:engine/conversion/modelconsumable~ModelConsumable} with values to consume from a given range,\n\t * assuming that the range has just been inserted to the model.\n\t *\n\t * @param consumable The consumable.\n\t * @param walkerValues The walker values for the inserted range.\n\t * @returns The values to consume.\n\t */\n\tprivate _addConsumablesForInsert(\n\t\tconsumable: Consumable,\n\t\twalkerValues: Iterable<TreeWalkerValue>\n\t): Consumable {\n\t\tfor ( const value of walkerValues ) {\n\t\t\tconst item = value.item;\n\n\t\t\t// Add consumable if it wasn't there yet.\n\t\t\tif ( consumable.test( item, 'insert' ) === null ) {\n\t\t\t\tconsumable.add( item, 'insert' );\n\n\t\t\t\tfor ( const key of item.getAttributeKeys() ) {\n\t\t\t\t\tconsumable.add( item, 'attribute:' + key );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn consumable;\n\t}\n\n\t/**\n\t * Populates provided {@link module:engine/conversion/modelconsumable~ModelConsumable} with values to consume for a given range.\n\t *\n\t * @param consumable The consumable.\n\t * @param range The affected range.\n\t * @param type Consumable type.\n\t * @returns The values to consume.\n\t */\n\tprivate _addConsumablesForRange(\n\t\tconsumable: Consumable,\n\t\trange: Range,\n\t\ttype: string\n\t): Consumable {\n\t\tfor ( const item of range.getItems() ) {\n\t\t\tconsumable.add( item, type );\n\t\t}\n\n\t\treturn consumable;\n\t}\n\n\t/**\n\t * Populates provided {@link module:engine/conversion/modelconsumable~ModelConsumable} with selection consumable values.\n\t *\n\t * @param consumable The consumable.\n\t * @param selection The selection to create the consumable from.\n\t * @param markers Markers that contain the selection.\n\t * @returns The values to consume.\n\t */\n\tprivate _addConsumablesForSelection(\n\t\tconsumable: Consumable,\n\t\tselection: Selection | DocumentSelection,\n\t\tmarkers: Iterable<Marker>\n\t): Consumable {\n\t\tconsumable.add( selection, 'selection' );\n\n\t\tfor ( const marker of markers ) {\n\t\t\tconsumable.add( selection, 'addMarker:' + marker.name );\n\t\t}\n\n\t\tfor ( const key of selection.getAttributeKeys() ) {\n\t\t\tconsumable.add( selection, 'attribute:' + key );\n\t\t}\n\n\t\treturn consumable;\n\t}\n\n\t/**\n\t * Tests whether given event wasn't already fired and if so, fires it.\n\t *\n\t * @fires insert\n\t * @fires attribute\n\t * @param type Event type.\n\t * @param data Event data.\n\t * @param conversionApi The conversion API object.\n\t */\n\tprivate _testAndFire<TType extends 'insert' | 'attribute'>(\n\t\ttype: TType | `${ TType }:${ string }`,\n\t\tdata: EventMap[ TType ],\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\tconst eventName = getEventName( type, data );\n\t\tconst itemKey = data.item.is( '$textProxy' ) ? conversionApi.consumable._getSymbolForTextProxy( data.item ) : data.item;\n\n\t\tconst eventsFiredForConversion = this._firedEventsMap.get( conversionApi )!;\n\t\tconst eventsFiredForItem = eventsFiredForConversion.get( itemKey );\n\n\t\tif ( !eventsFiredForItem ) {\n\t\t\teventsFiredForConversion.set( itemKey, new Set( [ eventName ] ) );\n\t\t} else if ( !eventsFiredForItem.has( eventName ) ) {\n\t\t\teventsFiredForItem.add( eventName );\n\t\t} else {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.fire<DowncastEvent<TType>>( eventName, data, conversionApi );\n\t}\n\n\t/**\n\t * Fires not already fired events for setting attributes on just inserted item.\n\t *\n\t * @param item The model item to convert attributes for.\n\t * @param conversionApi The conversion API object.\n\t */\n\tprivate _testAndFireAddAttributes(\n\t\titem: Item,\n\t\tconversionApi: DowncastConversionApi\n\t): void {\n\t\tconst data: EventMap[ 'attribute' ] = {\n\t\t\titem,\n\t\t\trange: Range._createOn( item )\n\t\t} as any;\n\n\t\tfor ( const key of data.item.getAttributeKeys() ) {\n\t\t\tdata.attributeKey = key;\n\t\t\tdata.attributeOldValue = null;\n\t\t\tdata.attributeNewValue = data.item.getAttribute( key );\n\n\t\t\tthis._testAndFire( `attribute:${ key }`, data, conversionApi );\n\t\t}\n\t}\n\n\t/**\n\t * Builds an instance of the {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi} from a template and a given\n\t * {@link module:engine/view/downcastwriter~DowncastWriter `DowncastWriter`} and options object.\n\t *\n\t * @param writer View writer that should be used to modify the view document.\n\t * @param refreshedItems A set of model elements that should not reuse their\n\t * previous view representations.\n\t * @param options Optional options passed to `convertionApi.options`.\n\t * @return The conversion API object.\n\t */\n\tprivate _createConversionApi(\n\t\twriter: DowncastWriter,\n\t\trefreshedItems: Set<Item> = new Set(),\n\t\toptions: DowncastConversionApi[ 'options' ] = {}\n\t): DowncastConversionApi {\n\t\tconst conversionApi: DowncastConversionApi = {\n\t\t\t...this._conversionApi,\n\t\t\tconsumable: new Consumable(),\n\t\t\twriter,\n\t\t\toptions,\n\t\t\tconvertItem: item => this._convertInsert( Range._createOn( item ), conversionApi ),\n\t\t\tconvertChildren: element => this._convertInsert( Range._createIn( element ), conversionApi, { doNotAddConsumables: true } ),\n\t\t\tconvertAttributes: item => this._testAndFireAddAttributes( item, conversionApi ),\n\t\t\tcanReuseView: viewElement => !refreshedItems.has( conversionApi.mapper.toModelElement( viewElement )! )\n\t\t};\n\n\t\tthis._firedEventsMap.set( conversionApi, new Map() );\n\n\t\treturn conversionApi;\n\t}\n}\n\n/**\n * Fired to enable reducing (transforming) changes buffered in the {@link module:engine/model/differ~Differ `Differ`} before\n * {@link ~DowncastDispatcher#convertChanges `convertChanges()`} will fire any conversion events.\n *\n * For instance, a feature can replace selected {@link module:engine/model/differ~DiffItem `DiffItem`}s with a `reinsert` entry\n * to trigger reconversion of an element when e.g. its attribute has changes.\n * The {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n\t * `DowncastHelpers.elementToStructure()`} helper is using this event to trigger reconversion of an element when the element,\n * its attributes or direct children changed.\n *\n * @eventName ~DowncastDispatcher#reduceChanges\n */\nexport type DowncastReduceChangesEvent = {\n\tname: 'reduceChanges';\n\targs: [ data: DowncastReduceChangesEventData ];\n};\n\nexport type DowncastReduceChangesEventData = {\n\n\t/**\n\t * A buffered changes to get reduced.\n\t */\n\tchanges: Iterable<DiffItem | DiffItemReinsert>;\n};\n\ntype EventMap<TItem = Item> = {\n\tinsert: {\n\t\titem: TItem;\n\t\trange: Range;\n\t\treconversion?: boolean;\n\t};\n\tremove: {\n\t\tposition: Position;\n\t\tlength: number;\n\t};\n\tattribute: {\n\t\titem: TItem;\n\t\trange: Range;\n\t\tattributeKey: string;\n\t\tattributeOldValue: unknown;\n\t\tattributeNewValue: unknown;\n\t};\n\tselection: {\n\t\tselection: Selection | DocumentSelection;\n\t};\n\taddMarker: {\n\t\titem?: Item | Selection | DocumentSelection;\n\t\trange?: Range;\n\t\tmarkerRange: Range;\n\t\tmarkerName: string;\n\t};\n\tremoveMarker: {\n\t\tmarkerRange: Range;\n\t\tmarkerName: string;\n\t};\n};\n\nexport type DowncastEvent<TName extends keyof EventMap<TItem>, TItem = Item> = {\n\tname: TName | `${ TName }:${ string }`;\n\targs: [ data: EventMap<TItem>[ TName ], conversionApi: DowncastConversionApi ];\n};\n\n/**\n * Fired for inserted nodes.\n *\n * `insert` is a namespace for a class of events. Names of actually called events follow this pattern:\n * `insert:name`. `name` is either `'$text'`, when {@link module:engine/model/text~Text a text node} has been inserted,\n * or {@link module:engine/model/element~Element#name name} of inserted element.\n *\n * This way, the listeners can either listen to a general `insert` event or specific event (for example `insert:paragraph`).\n *\n * @eventName ~DowncastDispatcher#insert\n * @param {Object} data Additional information about the change.\n * @param {module:engine/model/item~Item} data.item The inserted item.\n * @param {module:engine/model/range~Range} data.range Range spanning over inserted item.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n * to be used by callback, passed in the `DowncastDispatcher` constructor.\n */\nexport type DowncastInsertEvent<TItem extends Item = Item> = DowncastEvent<'insert', TItem>;\n\n/**\n * Fired for removed nodes.\n *\n * `remove` is a namespace for a class of events. Names of actually called events follow this pattern:\n * `remove:name`. `name` is either `'$text'`, when a {@link module:engine/model/text~Text a text node} has been removed,\n * or the {@link module:engine/model/element~Element#name name} of removed element.\n *\n * This way, listeners can either listen to a general `remove` event or specific event (for example `remove:paragraph`).\n *\n * @eventName ~DowncastDispatcher#remove\n * @param {Object} data Additional information about the change.\n * @param {module:engine/model/position~Position} data.position Position from which the node has been removed.\n * @param {Number} data.length Offset size of the removed node.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n * to be used by callback, passed in `DowncastDispatcher` constructor.\n */\nexport type DowncastRemoveEvent = DowncastEvent<'remove'>;\n\n/**\n * Fired in the following cases:\n *\n * * when an attribute has been added, changed, or removed from a node,\n * * when a node with an attribute is inserted,\n * * when a collapsed model selection attribute is converted.\n *\n * `attribute` is a namespace for a class of events. Names of actually called events follow this pattern:\n * `attribute:attributeKey:name`. `attributeKey` is the key of added/changed/removed attribute.\n * `name` is either `'$text'` if change was on {@link module:engine/model/text~Text a text node},\n * or the {@link module:engine/model/element~Element#name name} of element which attribute has changed.\n *\n * This way listeners can either listen to a general `attribute:bold` event or specific event (for example `attribute:src:imageBlock`).\n *\n * @eventName ~DowncastDispatcher#attribute\n * @param {Object} data Additional information about the change.\n * @param {module:engine/model/item~Item|module:engine/model/documentselection~DocumentSelection} data.item Changed item\n * or converted selection.\n * @param {module:engine/model/range~Range} data.range Range spanning over changed item or selection range.\n * @param {String} data.attributeKey Attribute key.\n * @param {*} data.attributeOldValue Attribute value before the change. This is `null` when selection attribute is converted.\n * @param {*} data.attributeNewValue New attribute value.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n * to be used by callback, passed in `DowncastDispatcher` constructor.\n */\nexport type DowncastAttributeEvent<TItem = Item | Selection | DocumentSelection> = DowncastEvent<'attribute', TItem>;\n\n/**\n * Fired for {@link module:engine/model/selection~Selection selection} changes.\n *\n * @eventName ~DowncastDispatcher#selection\n * @param {module:engine/model/selection~Selection} selection Selection that is converted.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n * to be used by callback, passed in `DowncastDispatcher` constructor.\n */\nexport type DowncastSelectionEvent = DowncastEvent<'selection'>;\n\n/**\n * Fired when a new marker is added to the model. Also fired when a collapsed model selection that is inside a marker is converted.\n *\n * `addMarker` is a namespace for a class of events. Names of actually called events follow this pattern:\n * `addMarker:markerName`. By specifying certain marker names, you can make the events even more gradual. For example,\n * if markers are named `foo:abc`, `foo:bar`, then it is possible to listen to `addMarker:foo` or `addMarker:foo:abc` and\n * `addMarker:foo:bar` events.\n *\n * If the marker range is not collapsed:\n *\n * * the event is fired for each item in the marker range one by one,\n * * `conversionApi.consumable` includes each item of the marker range and the consumable value is same as the event name.\n *\n * If the marker range is collapsed:\n *\n * * there is only one event,\n * * `conversionApi.consumable` includes marker range with the event name.\n *\n * If the selection inside a marker is converted:\n *\n * * there is only one event,\n * * `conversionApi.consumable` includes the selection instance with the event name.\n *\n * @eventName ~DowncastDispatcher#addMarker\n * @param {Object} data Additional information about the change.\n * @param {module:engine/model/item~Item|module:engine/model/selection~Selection} data.item Item inside the new marker or\n * the selection that is being converted.\n * @param {module:engine/model/range~Range} [data.range] Range spanning over converted item. Available only in marker conversion, if\n * the marker range was not collapsed.\n * @param {module:engine/model/range~Range} data.markerRange Marker range.\n * @param {String} data.markerName Marker name.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n * to be used by callback, passed in `DowncastDispatcher` constructor.\n */\nexport type DowncastAddMarkerEvent = DowncastEvent<'addMarker'>;\n\n/**\n * Fired when a marker is removed from the model.\n *\n * `removeMarker` is a namespace for a class of events. Names of actually called events follow this pattern:\n * `removeMarker:markerName`. By specifying certain marker names, you can make the events even more gradual. For example,\n * if markers are named `foo:abc`, `foo:bar`, then it is possible to listen to `removeMarker:foo` or `removeMarker:foo:abc` and\n * `removeMarker:foo:bar` events.\n *\n * @eventName ~DowncastDispatcher#removeMarker\n * @param {Object} data Additional information about the change.\n * @param {module:engine/model/range~Range} data.markerRange Marker range.\n * @param {String} data.markerName Marker name.\n * @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi Conversion interface\n * to be used by callback, passed in `DowncastDispatcher` constructor.\n */\nexport type DowncastRemoveMarkerEvent = DowncastEvent<'removeMarker'>;\n\nexport interface DiffItemReinsert {\n\ttype: 'reinsert';\n\tname: string;\n\tposition: Position;\n\tlength: number;\n}\n\n/**\n * Helper function, checks whether change of `marker` at `modelPosition` should be converted. Marker changes are not\n * converted if they happen inside an element with custom conversion method.\n */\nfunction shouldMarkerChangeBeConverted(\n\tmodelPosition: Position,\n\tmarker: Marker,\n\tmapper: Mapper\n): boolean {\n\tconst range = marker.getRange();\n\tconst ancestors = Array.from( modelPosition.getAncestors() );\n\tancestors.shift(); // Remove root element. It cannot be passed to `model.Range#containsItem`.\n\tancestors.reverse();\n\n\tconst hasCustomHandling = ( ancestors as Array<Element> ).some( element => {\n\t\tif ( range.containsItem( element ) ) {\n\t\t\tconst viewElement = mapper.toViewElement( element )!;\n\n\t\t\treturn !!viewElement.getCustomProperty( 'addHighlight' );\n\t\t}\n\t} );\n\n\treturn !hasCustomHandling;\n}\n\nfunction getEventName<TType extends string>( type: TType, data: { item: Item | Selection | DocumentSelection } ) {\n\tconst name = data.item.is( 'element' ) ? data.item.name : '$text';\n\n\treturn `${ type }:${ name }` as const;\n}\n\nfunction walkerValueToEventData( value: TreeWalkerValue ) {\n\tconst item = value.item;\n\tconst itemRange = Range._createFromPositionAndShift( value.previousPosition, value.length! );\n\n\treturn {\n\t\titem,\n\t\trange: itemRange\n\t};\n}\n\n/**\n * Conversion interface that is registered for given {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}\n * and is passed as one of parameters when {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher dispatcher}\n * fires its events.\n */\nexport interface DowncastConversionApi {\n\n\t/**\n\t * The {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} instance.\n\t */\n\tdispatcher: DowncastDispatcher;\n\n\t/**\n\t * Stores the information about what parts of a processed model item are still waiting to be handled. After a piece of a model item was\n\t * converted, an appropriate consumable value should be {@link module:engine/conversion/modelconsumable~ModelConsumable#consume\n\t * consumed}.\n\t */\n\tconsumable: Consumable;\n\n\t/**\n\t * The {@link module:engine/conversion/mapper~Mapper} instance.\n\t */\n\tmapper: Mapper;\n\n\t/**\n\t * The {@link module:engine/model/schema~Schema} instance set for the model that is downcast.\n\t */\n\tschema: Schema;\n\n\t/**\n\t * The {@link module:engine/view/downcastwriter~DowncastWriter} instance used to manipulate the data during conversion.\n\t */\n\twriter: DowncastWriter;\n\n\t/**\n\t * An object with an additional configuration which can be used during the conversion process.\n\t * Available only for data downcast conversion.\n\t */\n\toptions: Record<string, unknown>;\n\n\t/**\n\t * Triggers conversion of a specified item.\n\t * This conversion is triggered within (as a separate process of) the parent conversion.\n\t *\n\t * @param item The model item to trigger nested insert conversion on.\n\t */\n\tconvertItem( item: Item ): void;\n\n\t/**\n\t * Triggers conversion of children of a specified element.\n\t *\n\t * @param element The model element to trigger children insert conversion on.\n\t */\n\tconvertChildren( element: Element ): void;\n\n\t/**\n\t * Triggers conversion of attributes of a specified item.\n\t *\n\t * @param item The model item to trigger attribute conversion on.\n\t */\n\tconvertAttributes( item: Item ): void;\n\tcanReuseView( element: ViewElement ): boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/selection\n */\n\nimport TypeCheckable from './typecheckable';\nimport Node from './node';\nimport Position, { type PositionOffset } from './position';\nimport Range from './range';\n\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type Element from './element';\nimport type Item from './item';\n\nimport { CKEditorError, EmitterMixin, isIterable } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Selection is a set of {@link module:engine/model/range~Range ranges}. It has a direction specified by its\n * {@link module:engine/model/selection~Selection#anchor anchor} and {@link module:engine/model/selection~Selection#focus focus}\n * (it can be {@link module:engine/model/selection~Selection#isBackward forward or backward}).\n * Additionally, selection may have its own attributes (think – whether text typed in in this selection\n * should have those attributes – e.g. whether you type a bolded text).\n */\nexport default class Selection extends EmitterMixin( TypeCheckable ) {\n\t/**\n\t * Specifies whether the last added range was added as a backward or forward range.\n\t */\n\tprivate _lastRangeBackward: boolean = false;\n\n\t/**\n\t * List of attributes set on current selection.\n\t */\n\tprotected _attrs: Map<string, unknown> = new Map();\n\n\t/** @internal */\n\tpublic _ranges: Array<Range> = [];\n\n\t/**\n\t * Creates a new selection instance based on the given {@link module:engine/model/selection~Selectable selectable}\n\t * or creates an empty selection if no arguments were passed.\n\t *\n\t * ```ts\n\t * // Creates empty selection without ranges.\n\t * const selection = writer.createSelection();\n\t *\n\t * // Creates selection at the given range.\n\t * const range = writer.createRange( start, end );\n\t * const selection = writer.createSelection( range );\n\t *\n\t * // Creates selection at the given ranges\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * const selection = writer.createSelection( ranges );\n\t *\n\t * // Creates selection from the other selection.\n\t * // Note: It doesn't copy selection attributes.\n\t * const otherSelection = writer.createSelection();\n\t * const selection = writer.createSelection( otherSelection );\n\t *\n\t * // Creates selection from the given document selection.\n\t * // Note: It doesn't copy selection attributes.\n\t * const documentSelection = model.document.selection;\n\t * const selection = writer.createSelection( documentSelection );\n\t *\n\t * // Creates selection at the given position.\n\t * const position = writer.createPositionFromPath( root, path );\n\t * const selection = writer.createSelection( position );\n\t *\n\t * // Creates selection at the given offset in the given element.\n\t * const paragraph = writer.createElement( 'paragraph' );\n\t * const selection = writer.createSelection( paragraph, offset );\n\t *\n\t * // Creates a range inside an {@link module:engine/model/element~Element element} which starts before the\n\t * // first child of that element and ends after the last child of that element.\n\t * const selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t * // Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends\n\t * // just after the item.\n\t * const selection = writer.createSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * Selection's constructor allow passing additional options (`'backward'`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * @internal\n\t */\n\tconstructor(\n\t\t...args: [] |\n\t\t[\n\t\t\tselectable: Node,\n\t\t\tplaceOrOffset: PlaceOrOffset,\n\t\t\toptions?: { backward?: boolean }\n\t\t] |\n\t\t[\n\t\t\tselectable?: Exclude<Selectable, Node>,\n\t\t\toptions?: { backward?: boolean }\n\t\t]\n\t) {\n\t\tsuper();\n\n\t\tif ( args.length ) {\n\t\t\tthis.setTo( ...args );\n\t\t}\n\t}\n\n\t/**\n\t * Selection anchor. Anchor is the position from which the selection was started. If a user is making a selection\n\t * by dragging the mouse, the anchor is where the user pressed the mouse button (the beginning of the selection).\n\t *\n\t * Anchor and {@link #focus} define the direction of the selection, which is important\n\t * when expanding/shrinking selection. The focus moves, while the anchor should remain in the same place.\n\t *\n\t * Anchor is always set to the {@link module:engine/model/range~Range#start start} or\n\t * {@link module:engine/model/range~Range#end end} position of the last of selection's ranges. Whether it is\n\t * the `start` or `end` depends on the specified `options.backward`. See the {@link #setTo `setTo()`} method.\n\t *\n\t * May be set to `null` if there are no ranges in the selection.\n\t *\n\t * @see #focus\n\t */\n\tpublic get anchor(): Position | null {\n\t\tif ( this._ranges.length > 0 ) {\n\t\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\n\t\t\treturn this._lastRangeBackward ? range.end : range.start;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Selection focus. Focus is the position where the selection ends. If a user is making a selection\n\t * by dragging the mouse, the focus is where the mouse cursor is.\n\t *\n\t * May be set to `null` if there are no ranges in the selection.\n\t *\n\t * @see #anchor\n\t */\n\tpublic get focus(): Position | null {\n\t\tif ( this._ranges.length > 0 ) {\n\t\t\tconst range = this._ranges[ this._ranges.length - 1 ];\n\n\t\t\treturn this._lastRangeBackward ? range.start : range.end;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Whether the selection is collapsed. Selection is collapsed when there is exactly one range in it\n\t * and it is collapsed.\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\tconst length = this._ranges.length;\n\n\t\tif ( length === 1 ) {\n\t\t\treturn this._ranges[ 0 ].isCollapsed;\n\t\t} else {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\t/**\n\t * Returns the number of ranges in the selection.\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._ranges.length;\n\t}\n\n\t/**\n\t * Specifies whether the selection's {@link #focus} precedes the selection's {@link #anchor}.\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn !this.isCollapsed && this._lastRangeBackward;\n\t}\n\n\t/**\n\t * Checks whether this selection is equal to the given selection. Selections are equal if they have the same directions,\n\t * the same number of ranges and all ranges from one selection equal to ranges from the another selection.\n\t *\n\t * @param otherSelection Selection to compare with.\n\t * @returns `true` if selections are equal, `false` otherwise.\n\t */\n\tpublic isEqual( otherSelection: Selection | DocumentSelection ): boolean {\n\t\tif ( this.rangeCount != otherSelection.rangeCount ) {\n\t\t\treturn false;\n\t\t} else if ( this.rangeCount === 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( !this.anchor!.isEqual( otherSelection.anchor! ) || !this.focus!.isEqual( otherSelection.focus! ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tfor ( const thisRange of this._ranges ) {\n\t\t\tlet found = false;\n\n\t\t\tfor ( const otherRange of otherSelection._ranges ) {\n\t\t\t\tif ( thisRange.isEqual( otherRange ) ) {\n\t\t\t\t\tfound = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( !found ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Returns an iterable object that iterates over copies of selection ranges.\n\t */\n\tpublic* getRanges(): IterableIterator<Range> {\n\t\tfor ( const range of this._ranges ) {\n\t\t\tyield new Range( range.start, range.end );\n\t\t}\n\t}\n\n\t/**\n\t * Returns a copy of the first range in the selection.\n\t * First range is the one which {@link module:engine/model/range~Range#start start} position\n\t * {@link module:engine/model/position~Position#isBefore is before} start position of all other ranges\n\t * (not to confuse with the first range added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\tlet first = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !first || range.start.isBefore( first.start ) ) {\n\t\t\t\tfirst = range;\n\t\t\t}\n\t\t}\n\n\t\treturn first ? new Range( first.start, first.end ) : null;\n\t}\n\n\t/**\n\t * Returns a copy of the last range in the selection.\n\t * Last range is the one which {@link module:engine/model/range~Range#end end} position\n\t * {@link module:engine/model/position~Position#isAfter is after} end position of all other ranges (not to confuse with the range most\n\t * recently added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getLastRange(): Range | null {\n\t\tlet last = null;\n\n\t\tfor ( const range of this._ranges ) {\n\t\t\tif ( !last || range.end.isAfter( last.end ) ) {\n\t\t\t\tlast = range;\n\t\t\t}\n\t\t}\n\n\t\treturn last ? new Range( last.start, last.end ) : null;\n\t}\n\n\t/**\n\t * Returns the first position in the selection.\n\t * First position is the position that {@link module:engine/model/position~Position#isBefore is before}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\tconst first = this.getFirstRange();\n\n\t\treturn first ? first.start.clone() : null;\n\t}\n\n\t/**\n\t * Returns the last position in the selection.\n\t * Last position is the position that {@link module:engine/model/position~Position#isAfter is after}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\tconst lastRange = this.getLastRange();\n\n\t\treturn lastRange ? lastRange.end.clone() : null;\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/model/selection~Selectable selectable}.\n\t *\n\t * ```ts\n\t * // Removes all selection's ranges.\n\t * selection.setTo( null );\n\t *\n\t * // Sets selection to the given range.\n\t * const range = writer.createRange( start, end );\n\t * selection.setTo( range );\n\t *\n\t * // Sets selection to given ranges.\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * selection.setTo( ranges );\n\t *\n\t * // Sets selection to other selection.\n\t * // Note: It doesn't copy selection attributes.\n\t * const otherSelection = writer.createSelection();\n\t * selection.setTo( otherSelection );\n\t *\n\t * // Sets selection to the given document selection.\n\t * // Note: It doesn't copy selection attributes.\n\t * const documentSelection = new DocumentSelection( doc );\n\t * selection.setTo( documentSelection );\n\t *\n\t * // Sets collapsed selection at the given position.\n\t * const position = writer.createPositionFromPath( root, path );\n\t * selection.setTo( position );\n\t *\n\t * // Sets collapsed selection at the position of the given node and an offset.\n\t * selection.setTo( paragraph, offset );\n\t * ```\n\t *\n\t * Creates a range inside an {@link module:engine/model/element~Element element} which starts before the first child of\n \t * that element and ends after the last child of that element.\n\t *\n\t * ```ts\n\t * selection.setTo( paragraph, 'in' );\n\t * ```\n\t *\n\t * Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t * ```ts\n\t * selection.setTo( paragraph, 'on' );\n\t * ```\n\t *\n\t * `Selection#setTo()`' method allow passing additional options (`backward`) as the last argument.\n\t *\n\t * ```ts\n\t * // Sets backward selection.\n\t * const selection = writer.createSelection( range, { backward: true } );\n\t * ```\n\t */\n\tpublic setTo(\n\t\t...args: [\n\t\t\tselectable: Node,\n\t\t\tplaceOrOffset: PlaceOrOffset,\n\t\t\toptions?: { backward?: boolean }\n\t\t] | [\n\t\t\tselectable?: Exclude<Selectable, Node>,\n\t\t\toptions?: { backward?: boolean }\n\t\t]\n\t): void {\n\t\tlet [ selectable, placeOrOffset, options ] = args;\n\n\t\tif ( typeof placeOrOffset == 'object' ) {\n\t\t\toptions = placeOrOffset;\n\t\t\tplaceOrOffset = undefined;\n\t\t}\n\n\t\tif ( selectable === null ) {\n\t\t\tthis._setRanges( [] );\n\t\t} else if ( selectable instanceof Selection ) {\n\t\t\tthis._setRanges( selectable.getRanges(), selectable.isBackward );\n\t\t} else if ( selectable && typeof ( selectable as any ).getRanges == 'function' ) {\n\t\t\t// We assume that the selectable is a DocumentSelection.\n\t\t\t// It can't be imported here, because it would lead to circular imports.\n\t\t\tthis._setRanges( ( selectable as DocumentSelection ).getRanges(), ( selectable as DocumentSelection ).isBackward );\n\t\t} else if ( selectable instanceof Range ) {\n\t\t\tthis._setRanges( [ selectable ], !!options && !!options.backward );\n\t\t} else if ( selectable instanceof Position ) {\n\t\t\tthis._setRanges( [ new Range( selectable ) ] );\n\t\t} else if ( selectable instanceof Node ) {\n\t\t\tconst backward = !!options && !!options.backward;\n\t\t\tlet range;\n\n\t\t\tif ( placeOrOffset == 'in' ) {\n\t\t\t\trange = Range._createIn( selectable as Element );\n\t\t\t} else if ( placeOrOffset == 'on' ) {\n\t\t\t\trange = Range._createOn( selectable );\n\t\t\t} else if ( placeOrOffset !== undefined ) {\n\t\t\t\trange = new Range( Position._createAt( selectable, placeOrOffset ) );\n\t\t\t} else {\n\t\t\t\t/**\n\t\t\t\t * selection.setTo requires the second parameter when the first parameter is a node.\n\t\t\t\t *\n\t\t\t\t * @error model-selection-setto-required-second-parameter\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'model-selection-setto-required-second-parameter', [ this, selectable ] );\n\t\t\t}\n\n\t\t\tthis._setRanges( [ range ], backward );\n\t\t} else if ( isIterable( selectable ) ) {\n\t\t\t// We assume that the selectable is an iterable of ranges.\n\t\t\tthis._setRanges( selectable, options && !!options.backward );\n\t\t} else {\n\t\t\t/**\n\t\t\t * Cannot set the selection to the given place.\n\t\t\t *\n\t\t\t * Invalid parameters were specified when setting the selection. Common issues:\n\t\t\t *\n\t\t\t * * A {@link module:engine/model/textproxy~TextProxy} instance was passed instead of\n\t\t\t * a real {@link module:engine/model/text~Text}.\n\t\t\t * * View nodes were passed instead of model nodes.\n\t\t\t * * `null`/`undefined` was passed.\n\t\t\t *\n\t\t\t * @error model-selection-setto-not-selectable\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-selection-setto-not-selectable', [ this, selectable ] );\n\t\t}\n\t}\n\n\t/**\n\t * Replaces all ranges that were added to the selection with given array of ranges. Last range of the array\n\t * is treated like the last added range and is used to set {@link module:engine/model/selection~Selection#anchor} and\n\t * {@link module:engine/model/selection~Selection#focus}. Accepts a flag describing in which direction the selection is made.\n\t *\n\t * @fires change:range\n\t * @param newRanges Ranges to set.\n\t * @param isLastBackward Flag describing if last added range was selected forward - from start to end (`false`)\n\t * or backward - from end to start (`true`).\n\t */\n\tprotected _setRanges( newRanges: Iterable<Range>, isLastBackward: boolean = false ): void {\n\t\tconst ranges = Array.from( newRanges );\n\n\t\t// Check whether there is any range in new ranges set that is different than all already added ranges.\n\t\tconst anyNewRange = ranges.some( newRange => {\n\t\t\tif ( !( newRange instanceof Range ) ) {\n\t\t\t\t/**\n\t\t\t\t * Selection range set to an object that is not an instance of {@link module:engine/model/range~Range}.\n\t\t\t\t *\n\t\t\t\t * Only {@link module:engine/model/range~Range} instances can be used to set a selection.\n\t\t\t\t * Common mistakes leading to this error are:\n\t\t\t\t *\n\t\t\t\t * * using DOM `Range` object,\n\t\t\t\t * * incorrect CKEditor 5 installation with multiple `ckeditor5-engine` packages having different versions.\n\t\t\t\t *\n\t\t\t\t * @error model-selection-set-ranges-not-range\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'model-selection-set-ranges-not-range',\n\t\t\t\t\t[ this, newRanges ]\n\t\t\t\t);\n\t\t\t}\n\n\t\t\treturn this._ranges.every( oldRange => {\n\t\t\t\treturn !oldRange.isEqual( newRange );\n\t\t\t} );\n\t\t} );\n\n\t\t// Don't do anything if nothing changed.\n\t\tif ( ranges.length === this._ranges.length && !anyNewRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._replaceAllRanges( ranges );\n\n\t\tthis._lastRangeBackward = !!isLastBackward;\n\n\t\tthis.fire<SelectionChangeRangeEvent>( 'change:range', { directChange: true } );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/model/selection~Selection#focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as\n\t * {@link module:engine/model/writer~Writer#createPositionAt writer.createPositionAt()} parameters.\n\t *\n\t * @fires change:range\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic setFocus( itemOrPosition: Item | Position, offset?: PositionOffset ): void {\n\t\tif ( this.anchor === null ) {\n\t\t\t/**\n\t\t\t * Cannot set selection focus if there are no ranges in selection.\n\t\t\t *\n\t\t\t * @error model-selection-setfocus-no-ranges\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-selection-setfocus-no-ranges', [ this, itemOrPosition ] );\n\t\t}\n\n\t\tconst newFocus = Position._createAt( itemOrPosition, offset );\n\n\t\tif ( newFocus.compareWith( this.focus! ) == 'same' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst anchor = this.anchor;\n\n\t\tif ( this._ranges.length ) {\n\t\t\tthis._popRange();\n\t\t}\n\n\t\tif ( newFocus.compareWith( anchor ) == 'before' ) {\n\t\t\tthis._pushRange( new Range( newFocus, anchor ) );\n\t\t\tthis._lastRangeBackward = true;\n\t\t} else {\n\t\t\tthis._pushRange( new Range( anchor, newFocus ) );\n\t\t\tthis._lastRangeBackward = false;\n\t\t}\n\n\t\tthis.fire<SelectionChangeRangeEvent>( 'change:range', { directChange: true } );\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on the selection.\n\t *\n\t * @param key Key of attribute to look for.\n\t * @returns Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this._attrs.get( key );\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this._attrs.entries();\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attribute keys.\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this._attrs.keys();\n\t}\n\n\t/**\n\t * Checks if the selection has an attribute for given key.\n\t *\n\t * @param key Key of attribute to check.\n\t * @returns `true` if attribute with given key is set on selection, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this._attrs.has( key );\n\t}\n\n\t/**\n\t * Removes an attribute with given key from the selection.\n\t *\n\t * If given attribute was set on the selection, fires the {@link #event:change:range} event with\n\t * removed attribute key.\n\t *\n\t * @fires change:attribute\n\t * @param key Key of attribute to remove.\n\t */\n\tpublic removeAttribute( key: string ): void {\n\t\tif ( this.hasAttribute( key ) ) {\n\t\t\tthis._attrs.delete( key );\n\n\t\t\tthis.fire<SelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys: [ key ], directChange: true } );\n\t\t}\n\t}\n\n\t/**\n\t * Sets attribute on the selection. If attribute with the same key already is set, it's value is overwritten.\n\t *\n\t * If the attribute value has changed, fires the {@link #event:change:range} event with\n\t * the attribute key.\n\t *\n\t * @fires change:attribute\n\t * @param key Key of attribute to set.\n\t * @param value Attribute value.\n\t */\n\tpublic setAttribute( key: string, value: unknown ): void {\n\t\tif ( this.getAttribute( key ) !== value ) {\n\t\t\tthis._attrs.set( key, value );\n\n\t\t\tthis.fire<SelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys: [ key ], directChange: true } );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/model/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\tif ( this.rangeCount !== 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.getFirstRange()!.getContainedElement();\n\t}\n\n\t/**\n\t * Gets elements of type {@link module:engine/model/schema~Schema#isBlock \"block\"} touched by the selection.\n\t *\n\t * This method's result can be used for example to apply block styling to all blocks covered by this selection.\n\t *\n\t * **Note:** `getSelectedBlocks()` returns blocks that are nested in other non-block elements\n\t * but will not return blocks nested in other blocks.\n\t *\n\t * In this case the function will return exactly all 3 paragraphs (note: `<blockQuote>` is not a block itself):\n\t *\n\t * ```xml\n\t * <paragraph>[a</paragraph>\n\t * <blockQuote>\n\t * \t<paragraph>b</paragraph>\n\t * </blockQuote>\n\t * <paragraph>c]d</paragraph>\n\t * ```\n\t *\n\t * In this case the paragraph will also be returned, despite the collapsed selection:\n\t *\n\t * ```xml\n\t * <paragraph>[]a</paragraph>\n\t * ```\n\t *\n\t * In such a scenario, however, only blocks A, B & E will be returned as blocks C & D are nested in block B:\n\t *\n\t * ```xml\n\t * [<blockA></blockA>\n\t * <blockB>\n\t * \t<blockC></blockC>\n\t * \t<blockD></blockD>\n\t * </blockB>\n\t * <blockE></blockE>]\n\t * ```\n\t *\n\t * If the selection is inside a block all the inner blocks (A & B) are returned:\n\t *\n\t * ```xml\n\t * <block>\n\t * \t<blockA>[a</blockA>\n\t * \t<blockB>b]</blockB>\n\t * </block>\n\t * ```\n\t *\n\t * **Special case**: Selection ignores first and/or last blocks if nothing (from user perspective) is selected in them.\n\t *\n\t * ```xml\n\t * // Selection ends and the beginning of the last block.\n\t * <paragraph>[a</paragraph>\n\t * <paragraph>b</paragraph>\n\t * <paragraph>]c</paragraph> // This block will not be returned\n\t *\n\t * // Selection begins at the end of the first block.\n\t * <paragraph>a[</paragraph> // This block will not be returned\n\t * <paragraph>b</paragraph>\n\t * <paragraph>c]</paragraph>\n\t *\n\t * // Selection begings at the end of the first block and ends at the beginning of the last block.\n\t * <paragraph>a[</paragraph> // This block will not be returned\n\t * <paragraph>b</paragraph>\n\t * <paragraph>]c</paragraph> // This block will not be returned\n\t * ```\n\t */\n\tpublic* getSelectedBlocks(): IterableIterator<Element> {\n\t\tconst visited = new WeakSet<Node | DocumentFragment>();\n\n\t\tfor ( const range of this.getRanges() ) {\n\t\t\t// Get start block of range in case of a collapsed range.\n\t\t\tconst startBlock = getParentBlock( range.start, visited );\n\n\t\t\tif ( isStartBlockSelected( startBlock, range ) ) {\n\t\t\t\tyield startBlock as any;\n\t\t\t}\n\n\t\t\tfor ( const value of range.getWalker() ) {\n\t\t\t\tconst block = value.item;\n\n\t\t\t\tif ( value.type == 'elementEnd' && isUnvisitedTopBlock( block as any, visited, range ) ) {\n\t\t\t\t\tyield block as Element;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst endBlock = getParentBlock( range.end, visited );\n\n\t\t\tif ( isEndBlockSelected( endBlock, range ) ) {\n\t\t\t\tyield endBlock as any;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks whether the selection contains the entire content of the given element. This means that selection must start\n\t * at a position {@link module:engine/model/position~Position#isTouching touching} the element's start and ends at position\n\t * touching the element's end.\n\t *\n\t * By default, this method will check whether the entire content of the selection's current root is selected.\n\t * Useful to check if e.g. the user has just pressed <kbd>Ctrl</kbd> + <kbd>A</kbd>.\n\t */\n\tpublic containsEntireContent( element: Element = this.anchor!.root as Element ): boolean {\n\t\tconst limitStartPosition = Position._createAt( element, 0 );\n\t\tconst limitEndPosition = Position._createAt( element, 'end' );\n\n\t\treturn limitStartPosition.isTouching( this.getFirstPosition()! ) &&\n\t\t\tlimitEndPosition.isTouching( this.getLastPosition()! );\n\t}\n\n\t/**\n\t * Adds given range to internal {@link #_ranges ranges array}. Throws an error\n\t * if given range is intersecting with any range that is already stored in this selection.\n\t */\n\tprotected _pushRange( range: Range ): void {\n\t\tthis._checkRange( range );\n\t\tthis._ranges.push( new Range( range.start, range.end ) );\n\t}\n\n\t/**\n\t * Checks if given range intersects with ranges that are already in the selection. Throws an error if it does.\n\t */\n\tprotected _checkRange( range: Range ): void {\n\t\tfor ( let i = 0; i < this._ranges.length; i++ ) {\n\t\t\tif ( range.isIntersecting( this._ranges[ i ] ) ) {\n\t\t\t\t/**\n\t\t\t\t * Trying to add a range that intersects with another range in the selection.\n\t\t\t\t *\n\t\t\t\t * @error model-selection-range-intersects\n\t\t\t\t * @param addedRange Range that was added to the selection.\n\t\t\t\t * @param intersectingRange Range in the selection that intersects with `addedRange`.\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'model-selection-range-intersects',\n\t\t\t\t\t[ this, range ],\n\t\t\t\t\t{ addedRange: range, intersectingRange: this._ranges[ i ] }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Replaces all the ranges by the given ones.\n\t * Uses {@link #_popRange _popRange} and {@link #_pushRange _pushRange} to ensure proper ranges removal and addition.\n\t */\n\tprotected _replaceAllRanges( ranges: Array<Range> ): void {\n\t\tthis._removeAllRanges();\n\n\t\tfor ( const range of ranges ) {\n\t\t\tthis._pushRange( range );\n\t\t}\n\t}\n\n\t/**\n\t * Deletes ranges from internal range array. Uses {@link #_popRange _popRange} to\n\t * ensure proper ranges removal.\n\t */\n\tprotected _removeAllRanges(): void {\n\t\twhile ( this._ranges.length > 0 ) {\n\t\t\tthis._popRange();\n\t\t}\n\t}\n\n\t/**\n\t * Removes most recently added range from the selection.\n\t */\n\tprotected _popRange(): void {\n\t\tthis._ranges.pop();\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' || type === 'model:selection';\n};\n\n/**\n * Describes one of the events: `change:range` or `change:attribute`.\n */\nexport type SelectionChangeEvent = {\n\tname: 'change' | 'change:range' | 'change:attribute';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\tattributeKeys?: Array<string>;\n\t} ];\n};\n\n/**\n * Fired when selection range(s) changed.\n *\n * @eventName ~Selection#change:range\n * @param directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its position\n * was directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n * changed because the structure of the model has been changed (which means an indirect change).\n * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n * which mean that they are not updated once the document changes.\n */\nexport type SelectionChangeRangeEvent = {\n\tname: 'change' | 'change:range';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t} ];\n};\n\n/**\n * Fired when selection attribute changed.\n *\n * @eventName ~Selection#change:attribute\n * @param directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its attributes\n * were directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n * changed in the model and its attributes were refreshed (which means an indirect change).\n * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n * which mean that they are not updated once the document changes.\n * @param attributeKeys Array containing keys of attributes that changed.\n */\nexport type SelectionChangeAttributeEvent = {\n\tname: 'change' | 'change:attribute';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\tattributeKeys: Array<string>;\n\t} ];\n};\n\n/**\n * Checks whether the given element extends $block in the schema and has a parent (is not a root).\n * Marks it as already visited.\n */\nfunction isUnvisitedBlock( element: Node | DocumentFragment, visited: WeakSet<Node | DocumentFragment> ) {\n\tif ( visited.has( element ) ) {\n\t\treturn false;\n\t}\n\n\tvisited.add( element );\n\n\treturn element.root.document!.model.schema.isBlock( element ) && !!element.parent;\n}\n\n/**\n * Checks if the given element is a $block was not previously visited and is a top block in a range.\n */\nfunction isUnvisitedTopBlock( element: Element, visited: WeakSet<Node | DocumentFragment>, range: Range ) {\n\treturn isUnvisitedBlock( element, visited ) && isTopBlockInRange( element, range );\n}\n\n/**\n * Finds the lowest element in position's ancestors which is a block.\n * It will search until first ancestor that is a limit element.\n * Marks all ancestors as already visited to not include any of them later on.\n */\nfunction getParentBlock( position: Position, visited: WeakSet<Node | DocumentFragment> ) {\n\tconst element = position.parent;\n\tconst schema = element.root.document!.model.schema;\n\n\tconst ancestors = position.parent.getAncestors( { parentFirst: true, includeSelf: true } );\n\n\tlet hasParentLimit = false;\n\n\tconst block = ancestors.find( ( element ): element is Element => {\n\t\t// Stop searching after first parent node that is limit element.\n\t\tif ( hasParentLimit ) {\n\t\t\treturn false;\n\t\t}\n\n\t\thasParentLimit = schema.isLimit( element );\n\n\t\treturn !hasParentLimit && isUnvisitedBlock( element, visited );\n\t} );\n\n\t// Mark all ancestors of this position's parent, because find() might've stopped early and\n\t// the found block may be a child of another block.\n\tancestors.forEach( element => visited.add( element ) );\n\n\treturn block;\n}\n\n/**\n * Checks if the blocks is not nested in other block inside a range.\n */\nfunction isTopBlockInRange( block: Node, range: Range ) {\n\tconst parentBlock = findAncestorBlock( block );\n\n\tif ( !parentBlock ) {\n\t\treturn true;\n\t}\n\n\t// Add loose flag to check as parentRange can be equal to range.\n\tconst isParentInRange = range.containsRange( Range._createOn( parentBlock ), true );\n\n\treturn !isParentInRange;\n}\n\n/**\n * If a selection starts at the end of a block, that block is not returned as from the user's perspective this block wasn't selected.\n * See [#11585](https://github.com/ckeditor/ckeditor5/issues/11585) for more details.\n *\n * ```xml\n * <paragraph>a[</paragraph> // This block will not be returned\n * <paragraph>b</paragraph>\n * <paragraph>c]</paragraph>\n * ```\n *\n * Collapsed selection is not affected by it:\n *\n * ```xml\n * <paragraph>a[]</paragraph> // This block will be returned\n * ```\n */\nfunction isStartBlockSelected( startBlock: Element | undefined, range: Range ): boolean {\n\tif ( !startBlock ) {\n\t\treturn false;\n\t}\n\n\tif ( range.isCollapsed || startBlock.isEmpty ) {\n\t\treturn true;\n\t}\n\n\tif ( range.start.isTouching( Position._createAt( startBlock, startBlock.maxOffset ) ) ) {\n\t\treturn false;\n\t}\n\n\treturn isTopBlockInRange( startBlock, range );\n}\n\n/**\n * If a selection ends at the beginning of a block, that block is not returned as from the user's perspective this block wasn't selected.\n * See [#984](https://github.com/ckeditor/ckeditor5-engine/issues/984) for more details.\n *\n * ```xml\n * <paragraph>[a</paragraph>\n * <paragraph>b</paragraph>\n * <paragraph>]c</paragraph> // this block will not be returned\n * ```\n *\n * Collapsed selection is not affected by it:\n *\n * ```xml\n * <paragraph>[]a</paragraph> // this block will be returned\n * ```\n */\nfunction isEndBlockSelected( endBlock: Element | undefined, range: Range ): boolean {\n\tif ( !endBlock ) {\n\t\treturn false;\n\t}\n\n\tif ( range.isCollapsed || endBlock.isEmpty ) {\n\t\treturn true;\n\t}\n\n\tif ( range.end.isTouching( Position._createAt( endBlock, 0 ) ) ) {\n\t\treturn false;\n\t}\n\n\treturn isTopBlockInRange( endBlock, range );\n}\n\n/**\n * Returns first ancestor block of a node.\n */\nfunction findAncestorBlock( node: Node | DocumentFragment ) {\n\tconst schema = node.root.document!.model.schema;\n\n\tlet parent = node.parent;\n\n\twhile ( parent ) {\n\t\tif ( schema.isBlock( parent ) ) {\n\t\t\treturn parent as Element;\n\t\t}\n\n\t\tparent = parent.parent;\n\t}\n}\n\n/**\n * An entity that is used to set selection.\n *\n * See also {@link module:engine/model/selection~Selection#setTo}.\n */\nexport type Selectable = Selection | DocumentSelection | Position | Range | Node | Iterable<Range> | null;\n\n/**\n * The place or offset of the selection.\n */\nexport type PlaceOrOffset = number | 'before' | 'end' | 'after' | 'on' | 'in';\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/liverange\n */\n\nimport Range from './range';\n\nimport type { ModelApplyOperationEvent } from './model';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Operation from './operation/operation';\nimport type Position from './position';\n\nimport { EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * `LiveRange` is a type of {@link module:engine/model/range~Range Range}\n * that updates itself as {@link module:engine/model/document~Document document}\n * is changed through operations. It may be used as a bookmark.\n *\n * **Note:** Be very careful when dealing with `LiveRange`. Each `LiveRange` instance bind events that might\n * have to be unbound. Use {@link module:engine/model/liverange~LiveRange#detach detach} whenever you don't need `LiveRange` anymore.\n */\nexport default class LiveRange extends EmitterMixin( Range ) {\n\t/**\n\t * Creates a live range.\n\t *\n\t * @see module:engine/model/range~Range\n\t */\n\tconstructor( start: Position, end?: Position | null ) {\n\t\tsuper( start, end );\n\n\t\tbindWithDocument.call( this );\n\t}\n\n\t/**\n\t * Unbinds all events previously bound by `LiveRange`. Use it whenever you don't need `LiveRange` instance\n\t * anymore (i.e. when leaving scope in which it was declared or before re-assigning variable that was\n\t * referring to it).\n\t */\n\tpublic detach(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/range~Range range instance} that is equal to this live range.\n\t */\n\tpublic toRange(): Range {\n\t\treturn new Range( this.start, this.end );\n\t}\n\n\t/**\n\t * Creates a `LiveRange` instance that is equal to the given range.\n\t */\n\tpublic static fromRange( range: Range ): LiveRange {\n\t\treturn new LiveRange( range.start, range.end );\n\t}\n\n\t/**\n\t * @see module:engine/model/range~Range._createIn\n\t * @internal\n\t */\n\n\tdeclare public static readonly _createIn: ( element: Element | DocumentFragment ) => LiveRange;\n\n\t/**\n\t * @see module:engine/model/range~Range._createOn\n\t * @internal\n\t */\n\n\tdeclare public static readonly _createOn: ( element: Item | DocumentFragment ) => LiveRange;\n\n\t/**\n\t * @see module:engine/model/range~Range._createFromPositionAndShift\n\t * @internal\n\t */\n\n\tdeclare public static readonly _createFromPositionAndShift: ( position: Position, shift: number ) => LiveRange;\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nLiveRange.prototype.is = function( type: string ): boolean {\n\treturn type === 'liveRange' || type === 'model:liveRange' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype == 'range' || type === 'model:range';\n};\n\n/**\n * Fired when `LiveRange` instance boundaries have changed due to changes in the\n * {@link module:engine/model/document~Document document}.\n *\n * @eventName ~LiveRange#change:range\n * @param oldRange Range with start and end position equal to start and end position of this live\n * range before it got changed.\n * @param data Object with additional information about the change.\n * @param data.deletionPosition Source position for remove and merge changes.\n * Available if the range was moved to the graveyard root, `null` otherwise.\n */\nexport type LiveRangeChangeRangeEvent = {\n\tname: 'change' | 'change:range';\n\targs: [ range: Range, data: { deletionPosition: Position | null } ];\n};\n\n/**\n * Fired when `LiveRange` instance boundaries have not changed after a change in {@link module:engine/model/document~Document document}\n * but the change took place inside the range, effectively changing its content.\n *\n * @eventName ~LiveRange#change:content\n * @param range Range with start and end position equal to start and end position of\n * change range.\n * @param data Object with additional information about the change.\n * @param data.deletionPosition Due to the nature of this event, this property is always set to `null`. It is passed\n * for compatibility with the {@link module:engine/model/liverange~LiveRange#event:change:range} event.\n */\nexport type LiveRangeChangeContentEvent = {\n\tname: 'change' | 'change:content';\n\targs: [ range: Range, data: { deletionPosition: null } ];\n};\n\n/**\n * Describes `change:range` or `change:content` event.\n */\nexport type LiveRangeChangeEvent = {\n\tname: 'change' | 'change:range' | 'change:content';\n\targs: [ range: Range, data: { deletionPosition: Position | null } ];\n};\n\n/**\n * Binds this `LiveRange` to the {@link module:engine/model/document~Document document}\n * that owns this range's {@link module:engine/model/range~Range#root root}.\n */\nfunction bindWithDocument( this: LiveRange ) {\n\tthis.listenTo<ModelApplyOperationEvent>(\n\t\tthis.root.document!.model,\n\t\t'applyOperation',\n\t\t( event, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( !operation.isDocumentOperation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\ttransform.call( this, operation );\n\t\t},\n\t\t{ priority: 'low' }\n\t);\n}\n\n/**\n * Updates this range accordingly to the updates applied to the model. Bases on change events.\n */\nfunction transform( this: LiveRange, operation: Operation ) {\n\t// Transform the range by the operation. Join the result ranges if needed.\n\tconst ranges = this.getTransformedByOperation( operation );\n\tconst result = Range._createFromRanges( ranges );\n\n\tconst boundariesChanged = !result.isEqual( this );\n\tconst contentChanged = doesOperationChangeRangeContent( this, operation );\n\n\tlet deletionPosition = null;\n\n\tif ( boundariesChanged ) {\n\t\t// If range boundaries have changed, fire `change:range` event.\n\t\t//\n\t\tif ( result.root.rootName == '$graveyard' ) {\n\t\t\t// If the range was moved to the graveyard root, set `deletionPosition`.\n\t\t\tif ( operation.type == 'remove' ) {\n\t\t\t\tdeletionPosition = ( operation as MoveOperation ).sourcePosition;\n\t\t\t} else {\n\t\t\t\t// Merge operation.\n\t\t\t\tdeletionPosition = ( operation as MergeOperation ).deletionPosition;\n\t\t\t}\n\t\t}\n\n\t\tconst oldRange = this.toRange();\n\n\t\t( this as any ).start = result.start;\n\t\t( this as any ).end = result.end;\n\n\t\tthis.fire<LiveRangeChangeRangeEvent>( 'change:range', oldRange, { deletionPosition } );\n\t} else if ( contentChanged ) {\n\t\t// If range boundaries have not changed, but there was change inside the range, fire `change:content` event.\n\t\tthis.fire<LiveRangeChangeContentEvent>( 'change:content', this.toRange(), { deletionPosition } );\n\t}\n}\n\n/**\n * Checks whether given operation changes something inside the range (even if it does not change boundaries).\n */\nfunction doesOperationChangeRangeContent( range: Range, operation: any ) {\n\tswitch ( operation.type ) {\n\t\tcase 'insert':\n\t\t\treturn range.containsPosition( operation.position );\n\t\tcase 'move':\n\t\tcase 'remove':\n\t\tcase 'reinsert':\n\t\tcase 'merge':\n\t\t\treturn range.containsPosition( operation.sourcePosition ) ||\n\t\t\t\trange.start.isEqual( operation.sourcePosition ) ||\n\t\t\t\trange.containsPosition( operation.targetPosition );\n\t\tcase 'split':\n\t\t\treturn range.containsPosition( operation.splitPosition ) || range.containsPosition( operation.insertionPosition );\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/documentselection\n */\n\nimport TypeCheckable from './typecheckable';\nimport LiveRange from './liverange';\nimport Selection, {\n\ttype SelectionChangeAttributeEvent,\n\ttype SelectionChangeRangeEvent\n} from './selection';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type { default as Document, DocumentChangeEvent } from './document';\nimport type { default as Model, ModelApplyOperationEvent } from './model';\nimport type { Marker, MarkerCollectionUpdateEvent } from './markercollection';\nimport type Batch from './batch';\nimport type Element from './element';\nimport type Item from './item';\nimport type { default as Position, PositionOffset } from './position';\nimport type Range from './range';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tEmitterMixin,\n\ttoMap,\n\tuid\n} from '@ckeditor/ckeditor5-utils';\n\nconst storePrefix = 'selection:';\n\n/**\n * `DocumentSelection` is a special selection which is used as the\n * {@link module:engine/model/document~Document#selection document's selection}.\n * There can be only one instance of `DocumentSelection` per document.\n *\n * Document selection can only be changed by using the {@link module:engine/model/writer~Writer} instance\n * inside the {@link module:engine/model/model~Model#change `change()`} block, as it provides a secure way to modify model.\n *\n * `DocumentSelection` is automatically updated upon changes in the {@link module:engine/model/document~Document document}\n * to always contain valid ranges. Its attributes are inherited from the text unless set explicitly.\n *\n * Differences between {@link module:engine/model/selection~Selection} and `DocumentSelection` are:\n * * there is always a range in `DocumentSelection` - even if no ranges were added there is a \"default range\"\n * present in the selection,\n * * ranges added to this selection updates automatically when the document changes,\n * * attributes of `DocumentSelection` are updated automatically according to selection ranges.\n *\n * Since `DocumentSelection` uses {@link module:engine/model/liverange~LiveRange live ranges}\n * and is updated when {@link module:engine/model/document~Document document}\n * changes, it cannot be set on {@link module:engine/model/node~Node nodes}\n * that are inside {@link module:engine/model/documentfragment~DocumentFragment document fragment}.\n * If you need to represent a selection in document fragment,\n * use {@link module:engine/model/selection~Selection Selection class} instead.\n */\nexport default class DocumentSelection extends EmitterMixin( TypeCheckable ) {\n\t/**\n\t * Selection used internally by that class (`DocumentSelection` is a proxy to that selection).\n\t */\n\tprivate _selection: LiveSelection;\n\n\t/**\n\t * Creates an empty live selection for given {@link module:engine/model/document~Document}.\n\t *\n\t * @param doc Document which owns this selection.\n\t */\n\tconstructor( doc: Document ) {\n\t\tsuper();\n\n\t\tthis._selection = new LiveSelection( doc );\n\n\t\tthis._selection.delegate( 'change:range' ).to( this );\n\t\tthis._selection.delegate( 'change:attribute' ).to( this );\n\t\tthis._selection.delegate( 'change:marker' ).to( this );\n\t}\n\n\t/**\n\t * Describes whether the selection is collapsed. Selection is collapsed when there is exactly one range which is\n\t * collapsed.\n\t */\n\tpublic get isCollapsed(): boolean {\n\t\treturn this._selection.isCollapsed;\n\t}\n\n\t/**\n\t * Selection anchor. Anchor may be described as a position where the most recent part of the selection starts.\n\t * Together with {@link #focus} they define the direction of selection, which is important\n\t * when expanding/shrinking selection. Anchor is always {@link module:engine/model/range~Range#start start} or\n\t * {@link module:engine/model/range~Range#end end} position of the most recently added range.\n\t *\n\t * Is set to `null` if there are no ranges in selection.\n\t *\n\t * @see #focus\n\t */\n\tpublic get anchor(): Position | null {\n\t\treturn this._selection.anchor;\n\t}\n\n\t/**\n\t * Selection focus. Focus is a position where the selection ends.\n\t *\n\t * Is set to `null` if there are no ranges in selection.\n\t *\n\t * @see #anchor\n\t */\n\tpublic get focus(): Position | null {\n\t\treturn this._selection.focus;\n\t}\n\n\t/**\n\t * Number of ranges in selection.\n\t */\n\tpublic get rangeCount(): number {\n\t\treturn this._selection.rangeCount;\n\t}\n\n\t/**\n\t * Describes whether `Documentselection` has own range(s) set, or if it is defaulted to\n\t * {@link module:engine/model/document~Document#_getDefaultRange document's default range}.\n\t */\n\tpublic get hasOwnRange(): boolean {\n\t\treturn this._selection.hasOwnRange;\n\t}\n\n\t/**\n\t * Specifies whether the {@link #focus}\n\t * precedes {@link #anchor}.\n\t *\n\t * @readonly\n\t * @type {Boolean}\n\t */\n\tpublic get isBackward(): boolean {\n\t\treturn this._selection.isBackward;\n\t}\n\n\t/**\n\t * Describes whether the gravity is overridden (using {@link module:engine/model/writer~Writer#overrideSelectionGravity}) or not.\n\t *\n\t * Note that the gravity remains overridden as long as will not be restored the same number of times as it was overridden.\n\t */\n\tpublic get isGravityOverridden(): boolean {\n\t\treturn this._selection.isGravityOverridden;\n\t}\n\n\t/**\n\t * A collection of selection {@link module:engine/model/markercollection~Marker markers}.\n\t * Marker is a selection marker when selection range is inside the marker range.\n\t *\n\t * **Note**: Only markers from {@link ~DocumentSelection#observeMarkers observed markers groups} are collected.\n\t */\n\tpublic get markers(): Collection<Marker> {\n\t\treturn this._selection.markers;\n\t}\n\n\t/**\n\t * Used for the compatibility with the {@link module:engine/model/selection~Selection#isEqual} method.\n\t *\n\t * @internal\n\t */\n\tpublic get _ranges(): Array<Range> {\n\t\treturn this._selection._ranges;\n\t}\n\n\t/**\n\t * Returns an iterable that iterates over copies of selection ranges.\n\t */\n\tpublic getRanges(): IterableIterator<Range> {\n\t\treturn this._selection.getRanges();\n\t}\n\n\t/**\n\t * Returns the first position in the selection.\n\t * First position is the position that {@link module:engine/model/position~Position#isBefore is before}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getFirstPosition(): Position | null {\n\t\treturn this._selection.getFirstPosition();\n\t}\n\n\t/**\n\t * Returns the last position in the selection.\n\t * Last position is the position that {@link module:engine/model/position~Position#isAfter is after}\n\t * any other position in the selection.\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getLastPosition(): Position | null {\n\t\treturn this._selection.getLastPosition();\n\t}\n\n\t/**\n\t * Returns a copy of the first range in the selection.\n\t * First range is the one which {@link module:engine/model/range~Range#start start} position\n\t * {@link module:engine/model/position~Position#isBefore is before} start position of all other ranges\n\t * (not to confuse with the first range added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getFirstRange(): Range | null {\n\t\treturn this._selection.getFirstRange();\n\t}\n\n\t/**\n\t * Returns a copy of the last range in the selection.\n\t * Last range is the one which {@link module:engine/model/range~Range#end end} position\n\t * {@link module:engine/model/position~Position#isAfter is after} end position of all other ranges (not to confuse with the range most\n\t * recently added to the selection).\n\t *\n\t * Returns `null` if there are no ranges in selection.\n\t */\n\tpublic getLastRange(): Range | null {\n\t\treturn this._selection.getLastRange();\n\t}\n\n\t/**\n\t * Gets elements of type {@link module:engine/model/schema~Schema#isBlock \"block\"} touched by the selection.\n\t *\n\t * This method's result can be used for example to apply block styling to all blocks covered by this selection.\n\t *\n\t * **Note:** `getSelectedBlocks()` returns blocks that are nested in other non-block elements\n\t * but will not return blocks nested in other blocks.\n\t *\n\t * In this case the function will return exactly all 3 paragraphs (note: `<blockQuote>` is not a block itself):\n\t *\n\t * ```\n\t * <paragraph>[a</paragraph>\n\t * <blockQuote>\n\t * \t<paragraph>b</paragraph>\n\t * </blockQuote>\n\t * <paragraph>c]d</paragraph>\n\t * ```\n\t *\n\t * In this case the paragraph will also be returned, despite the collapsed selection:\n\t *\n\t * ```\n\t * <paragraph>[]a</paragraph>\n\t * ```\n\t *\n\t * In such a scenario, however, only blocks A, B & E will be returned as blocks C & D are nested in block B:\n\t *\n\t * ```\n\t * [<blockA></blockA>\n\t * <blockB>\n\t * \t<blockC></blockC>\n\t * \t<blockD></blockD>\n\t * </blockB>\n\t * <blockE></blockE>]\n\t * ```\n\t *\n\t * If the selection is inside a block all the inner blocks (A & B) are returned:\n\t *\n\t * ```\n\t * <block>\n\t * \t<blockA>[a</blockA>\n\t * \t<blockB>b]</blockB>\n\t * </block>\n\t * ```\n\t *\n\t * **Special case**: If a selection ends at the beginning of a block, that block is not returned as from user perspective\n\t * this block wasn't selected. See [#984](https://github.com/ckeditor/ckeditor5-engine/issues/984) for more details.\n\t *\n\t * ```\n\t * <paragraph>[a</paragraph>\n\t * <paragraph>b</paragraph>\n\t * <paragraph>]c</paragraph> // this block will not be returned\n\t * ```\n\t */\n\tpublic getSelectedBlocks(): IterableIterator<Element> {\n\t\treturn this._selection.getSelectedBlocks();\n\t}\n\n\t/**\n\t * Returns the selected element. {@link module:engine/model/element~Element Element} is considered as selected if there is only\n\t * one range in the selection, and that range contains exactly one element.\n\t * Returns `null` if there is no selected element.\n\t */\n\tpublic getSelectedElement(): Element | null {\n\t\treturn this._selection.getSelectedElement();\n\t}\n\n\t/**\n\t * Checks whether the selection contains the entire content of the given element. This means that selection must start\n\t * at a position {@link module:engine/model/position~Position#isTouching touching} the element's start and ends at position\n\t * touching the element's end.\n\t *\n\t * By default, this method will check whether the entire content of the selection's current root is selected.\n\t * Useful to check if e.g. the user has just pressed <kbd>Ctrl</kbd> + <kbd>A</kbd>.\n\t */\n\tpublic containsEntireContent( element: Element ): boolean {\n\t\treturn this._selection.containsEntireContent( element );\n\t}\n\n\t/**\n\t * Unbinds all events previously bound by document selection.\n\t */\n\tpublic destroy(): void {\n\t\tthis._selection.destroy();\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attribute keys.\n\t */\n\tpublic getAttributeKeys(): IterableIterator<string> {\n\t\treturn this._selection.getAttributeKeys();\n\t}\n\n\t/**\n\t * Returns iterable that iterates over this selection's attributes.\n\t *\n\t * Attributes are returned as arrays containing two items. First one is attribute key and second is attribute value.\n\t * This format is accepted by native `Map` object and also can be passed in `Node` constructor.\n\t */\n\tpublic getAttributes(): IterableIterator<[ string, unknown ]> {\n\t\treturn this._selection.getAttributes();\n\t}\n\n\t/**\n\t * Gets an attribute value for given key or `undefined` if that attribute is not set on the selection.\n\t *\n\t * @param key Key of attribute to look for.\n\t * @returns Attribute value or `undefined`.\n\t */\n\tpublic getAttribute( key: string ): unknown {\n\t\treturn this._selection.getAttribute( key );\n\t}\n\n\t/**\n\t * Checks if the selection has an attribute for given key.\n\t *\n\t * @param key Key of attribute to check.\n\t * @returns `true` if attribute with given key is set on selection, `false` otherwise.\n\t */\n\tpublic hasAttribute( key: string ): boolean {\n\t\treturn this._selection.hasAttribute( key );\n\t}\n\n\t/**\n\t * Refreshes selection attributes and markers according to the current position in the model.\n\t */\n\tpublic refresh(): void {\n\t\tthis._selection.updateMarkers();\n\t\tthis._selection._updateAttributes( false );\n\t}\n\n\t/**\n\t * Registers a marker group prefix or a marker name to be collected in the\n\t * {@link ~DocumentSelection#markers selection markers collection}.\n\t *\n\t * See also {@link module:engine/model/markercollection~MarkerCollection#getMarkersGroup `MarkerCollection#getMarkersGroup()`}.\n\t *\n\t * @param prefixOrName The marker group prefix or marker name.\n\t */\n\tpublic observeMarkers( prefixOrName: string ): void {\n\t\tthis._selection.observeMarkers( prefixOrName );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/model/documentselection~DocumentSelection#focus} to the specified location.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#setSelectionFocus} method.\n\t *\n\t * The location can be specified in the same form as\n\t * {@link module:engine/model/writer~Writer#createPositionAt writer.createPositionAt()} parameters.\n\t *\n\t * @see module:engine/model/writer~Writer#setSelectionFocus\n\t * @internal\n\t * @param offset Offset or one of the flags. Used only when\n\t * first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic _setFocus( itemOrPosition: Item | Position, offset?: PositionOffset ): void {\n\t\tthis._selection.setFocus( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Sets this selection's ranges and direction to the specified location based on the given\n\t * {@link module:engine/model/selection~Selectable selectable}.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#setSelection} method.\n\t *\n\t * @see module:engine/model/writer~Writer#setSelection\n\t * @internal\n\t */\n\tpublic _setTo( ...args: Parameters<Selection[ 'setTo' ]> ): void {\n\t\tthis._selection.setTo( ...args );\n\t}\n\n\t/**\n\t * Sets attribute on the selection. If attribute with the same key already is set, it's value is overwritten.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#setSelectionAttribute} method.\n\t *\n\t * @see module:engine/model/writer~Writer#setSelectionAttribute\n\t * @internal\n\t * @param key Key of the attribute to set.\n\t * @param value Attribute value.\n\t */\n\tpublic _setAttribute( key: string, value: unknown ): void {\n\t\tthis._selection.setAttribute( key, value );\n\t}\n\n\t/**\n\t * Removes an attribute with given key from the selection.\n\t * If the given attribute was set on the selection, fires the {@link module:engine/model/selection~Selection#event:change:range}\n\t * event with removed attribute key.\n\t * Should be used only within the {@link module:engine/model/writer~Writer#removeSelectionAttribute} method.\n\t *\n\t * @see module:engine/model/writer~Writer#removeSelectionAttribute\n\t * @internal\n\t * @param key Key of the attribute to remove.\n\t */\n\tpublic _removeAttribute( key: string ): void {\n\t\tthis._selection.removeAttribute( key );\n\t}\n\n\t/**\n\t * Returns an iterable that iterates through all selection attributes stored in current selection's parent.\n\t *\n\t * @internal\n\t */\n\tpublic _getStoredAttributes(): Iterable<[ string, unknown ]> {\n\t\treturn this._selection.getStoredAttributes();\n\t}\n\n\t/**\n\t * Temporarily changes the gravity of the selection from the left to the right.\n\t *\n\t * The gravity defines from which direction the selection inherits its attributes. If it's the default left\n\t * gravity, the selection (after being moved by the the user) inherits attributes from its left hand side.\n\t * This method allows to temporarily override this behavior by forcing the gravity to the right.\n\t *\n\t * It returns an unique identifier which is required to restore the gravity. It guarantees the symmetry\n\t * of the process.\n\t *\n\t * @see module:engine/model/writer~Writer#overrideSelectionGravity\n\t * @internal\n\t * @returns The unique id which allows restoring the gravity.\n\t */\n\tpublic _overrideGravity(): string {\n\t\treturn this._selection.overrideGravity();\n\t}\n\n\t/**\n\t * Restores the {@link ~DocumentSelection#_overrideGravity overridden gravity}.\n\t *\n\t * Restoring the gravity is only possible using the unique identifier returned by\n\t * {@link ~DocumentSelection#_overrideGravity}. Note that the gravity remains overridden as long as won't be restored\n\t * the same number of times it was overridden.\n\t *\n\t * @see module:engine/model/writer~Writer#restoreSelectionGravity\n\t * @internal\n\t * @param uid The unique id returned by {@link #_overrideGravity}.\n\t */\n\tpublic _restoreGravity( uid: string ): void {\n\t\tthis._selection.restoreGravity( uid );\n\t}\n\n\t/**\n\t * Generates and returns an attribute key for selection attributes store, basing on original attribute key.\n\t *\n\t * @internal\n\t * @param key Attribute key to convert.\n\t * @returns Converted attribute key, applicable for selection store.\n\t */\n\tpublic static _getStoreAttributeKey( key: string ): string {\n\t\treturn storePrefix + key;\n\t}\n\n\t/**\n\t * Checks whether the given attribute key is an attribute stored on an element.\n\t *\n\t * @internal\n\t */\n\tpublic static _isStoreAttributeKey( key: string ): boolean {\n\t\treturn key.startsWith( storePrefix );\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nDocumentSelection.prototype.is = function( type: string ): boolean {\n\treturn type === 'selection' ||\n\t\ttype == 'model:selection' ||\n\t\ttype == 'documentSelection' ||\n\t\ttype == 'model:documentSelection';\n};\n\n/**\n * Fired when selection range(s) changed.\n *\n * @eventName ~DocumentSelection#change:range\n * @param directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its position\n * was directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n * changed because the structure of the model has been changed (which means an indirect change).\n * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n * which mean that they are not updated once the document changes.\n */\nexport type DocumentSelectionChangeRangeEvent = SelectionChangeRangeEvent;\n\n/**\n * Fired when selection attribute changed.\n *\n * @eventName ~DocumentSelection#change:attribute\n * @param directChange In case of {@link module:engine/model/selection~Selection} class it is always set\n * to `true` which indicates that the selection change was caused by a direct use of selection's API.\n * The {@link module:engine/model/documentselection~DocumentSelection}, however, may change because its attributes\n * were directly changed through the {@link module:engine/model/writer~Writer writer} or because its position was\n * changed in the model and its attributes were refreshed (which means an indirect change).\n * The indirect change does not occur in case of normal (detached) selections because they are \"static\" (as \"not live\")\n * which mean that they are not updated once the document changes.\n * @param attributeKeys Array containing keys of attributes that changed.\n*/\nexport type DocumentSelectionChangeAttributeEvent = SelectionChangeAttributeEvent;\n\n/**\n * Fired when selection marker(s) changed.\n *\n * @eventName ~DocumentSelection#change:marker\n * @param directChange This is always set to `false` in case of `change:marker` event as there is no possibility\n * to change markers directly through {@link module:engine/model/documentselection~DocumentSelection} API.\n * See also {@link module:engine/model/documentselection~DocumentSelection#event:change:range} and\n * {@link module:engine/model/documentselection~DocumentSelection#event:change:attribute}.\n * @param oldMarkers Markers in which the selection was before the change.\n */\nexport type DocumentSelectionChangeMarkerEvent = {\n\tname: 'change:marker';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\toldMarkers: Array<Marker>;\n\t} ];\n};\n\n/**\n * Fired when selection range(s), attribute(s) or marker(s) changed.\n *\n * @eventName ~DocumentSelection#change\n * @param directChange This is always set to `false` in case of `change:marker` event as there is no possibility\n * to change markers directly through {@link module:engine/model/documentselection~DocumentSelection} API.\n * See also {@link module:engine/model/documentselection~DocumentSelection#event:change:range} and\n * {@link module:engine/model/documentselection~DocumentSelection#event:change:attribute}.\n * @param attributeKeys Array containing keys of attributes that changed.\n * @param oldMarkers Markers in which the selection was before the change.\n */\nexport type DocumentSelectionChangeEvent = {\n\tname: 'change' | 'change:attribute' | 'change:marker' | 'change:range';\n\targs: [ {\n\t\tdirectChange: boolean;\n\t\tattributeKeys?: Array<string>;\n\t\toldMarkers?: Array<Marker>;\n\t} ];\n};\n\n/**\n * `LiveSelection` is used internally by {@link module:engine/model/documentselection~DocumentSelection} and shouldn't be used directly.\n *\n * LiveSelection` is automatically updated upon changes in the {@link module:engine/model/document~Document document}\n * to always contain valid ranges. Its attributes are inherited from the text unless set explicitly.\n *\n * Differences between {@link module:engine/model/selection~Selection} and `LiveSelection` are:\n * * there is always a range in `LiveSelection` - even if no ranges were added there is a \"default range\"\n * present in the selection,\n * * ranges added to this selection updates automatically when the document changes,\n * * attributes of `LiveSelection` are updated automatically according to selection ranges.\n */\nclass LiveSelection extends Selection {\n\t/**\n\t * List of selection markers.\n\t * Marker is a selection marker when selection range is inside the marker range.\n\t */\n\tpublic markers: Collection<Marker> = new Collection( { idProperty: 'name' } );\n\n\t/**\n\t * Document which owns this selection.\n\t */\n\tprivate _model: Model;\n\n\t/**\n\t * Document which owns this selection.\n\t */\n\tprivate _document: Document;\n\n\t/**\n\t * Stores selection ranges.\n\t *\n\t * @internal\n\t */\n\tpublic declare _ranges: Array<LiveRange>;\n\n\t/**\n\t * Keeps mapping of attribute name to priority with which the attribute got modified (added/changed/removed)\n\t * last time. Possible values of priority are: `'low'` and `'normal'`.\n\t *\n\t * Priorities are used by internal `LiveSelection` mechanisms. All attributes set using `LiveSelection`\n\t * attributes API are set with `'normal'` priority.\n\t */\n\tprivate _attributePriority: Map<string, 'low' | 'normal'> = new Map();\n\n\t/**\n\t * Position to which the selection should be set if the last selection range was moved to the graveyard.\n\t */\n\tprivate _selectionRestorePosition: Position | null = null;\n\n\t/**\n\t * Flag that informs whether the selection ranges have changed. It is changed on true when `LiveRange#change:range` event is fired.\n\t */\n\tprivate _hasChangedRange: boolean = false;\n\n\t/**\n\t * Each overriding gravity adds an UID to the set and each removal removes it.\n\t * Gravity is overridden when there's at least one UID in the set.\n\t * Gravity is restored when the set is empty.\n\t * This is to prevent conflicts when gravity is overridden by more than one feature at the same time.\n\t */\n\tprivate _overriddenGravityRegister: Set<string> = new Set();\n\n\t/**\n\t * Prefixes of marker names that should affect `LiveSelection#markers` collection.\n\t */\n\tprivate _observedMarkers: Set<string> = new Set();\n\n\t/**\n\t * Creates an empty live selection for given {@link module:engine/model/document~Document}.\n\t *\n\t * @param doc Document which owns this selection.\n\t */\n\tconstructor( doc: Document ) {\n\t\tsuper();\n\n\t\tthis._model = doc.model;\n\t\tthis._document = doc;\n\n\t\t// Ensure selection is correct after each operation.\n\t\tthis.listenTo<ModelApplyOperationEvent>( this._model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( !operation.isDocumentOperation || operation.type == 'marker' || operation.type == 'rename' || operation.type == 'noop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Fix selection if the last range was removed from it and we have a position to which we can restore the selection.\n\t\t\tif ( this._ranges.length == 0 && this._selectionRestorePosition ) {\n\t\t\t\tthis._fixGraveyardSelection( this._selectionRestorePosition );\n\t\t\t}\n\n\t\t\t// \"Forget\" the restore position even if it was not \"used\".\n\t\t\tthis._selectionRestorePosition = null;\n\n\t\t\tif ( this._hasChangedRange ) {\n\t\t\t\tthis._hasChangedRange = false;\n\t\t\t\tthis.fire<DocumentSelectionChangeRangeEvent>( 'change:range', { directChange: false } );\n\t\t\t}\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Ensure selection is correct and up to date after each range change.\n\t\tthis.on<DocumentSelectionChangeRangeEvent>( 'change:range', () => {\n\t\t\tthis._validateSelectionRanges( this.getRanges() );\n\t\t} );\n\n\t\t// Update markers data stored by the selection after each marker change.\n\t\t// This handles only marker changes done through marker operations (not model tree changes).\n\t\tthis.listenTo<MarkerCollectionUpdateEvent>( this._model.markers, 'update', ( evt, marker, oldRange, newRange ) => {\n\t\t\tthis._updateMarker( marker, newRange );\n\t\t} );\n\n\t\t// Ensure selection is up to date after each change block.\n\t\tthis.listenTo<DocumentChangeEvent>( this._document, 'change', ( evt, batch ) => {\n\t\t\tclearAttributesStoredInElement( this._model, batch );\n\t\t} );\n\t}\n\n\tpublic override get isCollapsed(): boolean {\n\t\tconst length = this._ranges.length;\n\n\t\treturn length === 0 ? this._document._getDefaultRange().isCollapsed : super.isCollapsed;\n\t}\n\n\tpublic override get anchor(): Position {\n\t\treturn super.anchor || this._document._getDefaultRange().start;\n\t}\n\n\tpublic override get focus(): Position {\n\t\treturn super.focus || this._document._getDefaultRange().end;\n\t}\n\n\tpublic override get rangeCount(): number {\n\t\treturn this._ranges.length ? this._ranges.length : 1;\n\t}\n\n\t/**\n\t * Describes whether `LiveSelection` has own range(s) set, or if it is defaulted to\n\t * {@link module:engine/model/document~Document#_getDefaultRange document's default range}.\n\t */\n\tpublic get hasOwnRange(): boolean {\n\t\treturn this._ranges.length > 0;\n\t}\n\n\t/**\n\t * When set to `true` then selection attributes on node before the caret won't be taken\n\t * into consideration while updating selection attributes.\n\t */\n\tpublic get isGravityOverridden(): boolean {\n\t\treturn !!this._overriddenGravityRegister.size;\n\t}\n\n\t/**\n\t * Unbinds all events previously bound by live selection.\n\t */\n\tpublic destroy(): void {\n\t\tfor ( let i = 0; i < this._ranges.length; i++ ) {\n\t\t\tthis._ranges[ i ].detach();\n\t\t}\n\n\t\tthis.stopListening();\n\t}\n\n\tpublic override* getRanges(): IterableIterator<Range> {\n\t\tif ( this._ranges.length ) {\n\t\t\tyield* super.getRanges();\n\t\t} else {\n\t\t\tyield this._document._getDefaultRange();\n\t\t}\n\t}\n\n\tpublic override getFirstRange(): Range {\n\t\treturn super.getFirstRange() || this._document._getDefaultRange();\n\t}\n\n\tpublic override getLastRange(): Range {\n\t\treturn super.getLastRange() || this._document._getDefaultRange();\n\t}\n\n\tpublic override setTo( ...args: Parameters<Selection[ 'setTo' ]> ) {\n\t\tsuper.setTo( ...args );\n\t\tthis._updateAttributes( true );\n\t\tthis.updateMarkers();\n\t}\n\n\tpublic override setFocus( itemOrPosition: Item | Position, offset?: PositionOffset ): void {\n\t\tsuper.setFocus( itemOrPosition, offset );\n\t\tthis._updateAttributes( true );\n\t\tthis.updateMarkers();\n\t}\n\n\tpublic override setAttribute( key: string, value: unknown ): void {\n\t\tif ( this._setAttribute( key, value ) ) {\n\t\t\t// Fire event with exact data.\n\t\t\tconst attributeKeys = [ key ];\n\t\t\tthis.fire<DocumentSelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys, directChange: true } );\n\t\t}\n\t}\n\n\tpublic override removeAttribute( key: string ): void {\n\t\tif ( this._removeAttribute( key ) ) {\n\t\t\t// Fire event with exact data.\n\t\t\tconst attributeKeys = [ key ];\n\t\t\tthis.fire<DocumentSelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys, directChange: true } );\n\t\t}\n\t}\n\n\tpublic overrideGravity(): string {\n\t\tconst overrideUid = uid();\n\n\t\t// Remember that another overriding has been requested. It will need to be removed\n\t\t// before the gravity is to be restored.\n\t\tthis._overriddenGravityRegister.add( overrideUid );\n\n\t\tif ( this._overriddenGravityRegister.size === 1 ) {\n\t\t\tthis._updateAttributes( true );\n\t\t}\n\n\t\treturn overrideUid;\n\t}\n\n\tpublic restoreGravity( uid: string ): void {\n\t\tif ( !this._overriddenGravityRegister.has( uid ) ) {\n\t\t\t/**\n\t\t\t * Restoring gravity for an unknown UID is not possible. Make sure you are using a correct\n\t\t\t * UID obtained from the {@link module:engine/model/writer~Writer#overrideSelectionGravity} to restore.\n\t\t\t *\n\t\t\t * @error document-selection-gravity-wrong-restore\n\t\t\t * @param uid The unique identifier returned by\n\t\t\t * {@link module:engine/model/documentselection~DocumentSelection#_overrideGravity}.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'document-selection-gravity-wrong-restore',\n\t\t\t\tthis,\n\t\t\t\t{ uid }\n\t\t\t);\n\t\t}\n\n\t\tthis._overriddenGravityRegister.delete( uid );\n\n\t\t// Restore gravity only when all overriding have been restored.\n\t\tif ( !this.isGravityOverridden ) {\n\t\t\tthis._updateAttributes( true );\n\t\t}\n\t}\n\n\tpublic observeMarkers( prefixOrName: string ): void {\n\t\tthis._observedMarkers.add( prefixOrName );\n\t\tthis.updateMarkers();\n\t}\n\n\tprotected override _replaceAllRanges( ranges: Array<Range> ): void {\n\t\tthis._validateSelectionRanges( ranges );\n\n\t\tsuper._replaceAllRanges( ranges );\n\t}\n\n\tprotected override _popRange(): void {\n\t\tthis._ranges.pop()!.detach();\n\t}\n\n\tprotected override _pushRange( range: Range ): void {\n\t\tconst liveRange = this._prepareRange( range );\n\n\t\t// `undefined` is returned when given `range` is in graveyard root.\n\t\tif ( liveRange ) {\n\t\t\tthis._ranges.push( liveRange );\n\t\t}\n\t}\n\n\tprivate _validateSelectionRanges( ranges: Iterable<Range> ) {\n\t\tfor ( const range of ranges ) {\n\t\t\tif ( !this._document._validateSelectionRange( range ) ) {\n\t\t\t\t/**\n\t\t\t\t * Range from {@link module:engine/model/documentselection~DocumentSelection document selection}\n\t\t\t\t * starts or ends at incorrect position.\n\t\t\t\t *\n\t\t\t\t * @error document-selection-wrong-position\n\t\t\t\t * @param range\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'document-selection-wrong-position',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ range }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Prepares given range to be added to selection. Checks if it is correct,\n\t * converts it to {@link module:engine/model/liverange~LiveRange LiveRange}\n\t * and sets listeners listening to the range's change event.\n\t */\n\tprivate _prepareRange( range: Range ): LiveRange | undefined {\n\t\tthis._checkRange( range );\n\n\t\tif ( range.root == this._document.graveyard ) {\n\t\t\t// @if CK_DEBUG // console.warn( 'Trying to add a Range that is in the graveyard root. Range rejected.' );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst liveRange = LiveRange.fromRange( range );\n\n\t\t// If selection range is moved to the graveyard remove it from the selection object.\n\t\t// Also, save some data that can be used to restore selection later, on `Model#applyOperation` event.\n\t\tliveRange.on( 'change:range', ( evt, oldRange, data ) => {\n\t\t\tthis._hasChangedRange = true;\n\n\t\t\tif ( liveRange.root == this._document.graveyard ) {\n\t\t\t\tthis._selectionRestorePosition = data.deletionPosition;\n\n\t\t\t\tconst index = this._ranges.indexOf( liveRange );\n\t\t\t\tthis._ranges.splice( index, 1 );\n\t\t\t\tliveRange.detach();\n\t\t\t}\n\t\t} );\n\n\t\treturn liveRange;\n\t}\n\n\tpublic updateMarkers(): void {\n\t\tif ( !this._observedMarkers.size ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst markers = [];\n\t\tlet changed = false;\n\n\t\tfor ( const marker of this._model.markers ) {\n\t\t\tconst markerGroup = marker.name.split( ':', 1 )[ 0 ];\n\n\t\t\tif ( !this._observedMarkers.has( markerGroup ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst markerRange = marker.getRange();\n\n\t\t\tfor ( const selectionRange of this.getRanges() ) {\n\t\t\t\tif ( markerRange.containsRange( selectionRange, !selectionRange.isCollapsed ) ) {\n\t\t\t\t\tmarkers.push( marker );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst oldMarkers = Array.from( this.markers );\n\n\t\tfor ( const marker of markers ) {\n\t\t\tif ( !this.markers.has( marker ) ) {\n\t\t\t\tthis.markers.add( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t}\n\n\t\tfor ( const marker of Array.from( this.markers ) ) {\n\t\t\tif ( !markers.includes( marker ) ) {\n\t\t\t\tthis.markers.remove( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t}\n\n\t\tif ( changed ) {\n\t\t\tthis.fire<DocumentSelectionChangeMarkerEvent>( 'change:marker', { oldMarkers, directChange: false } );\n\t\t}\n\t}\n\n\tprivate _updateMarker( marker: Marker, markerRange: Range | null ): void {\n\t\tconst markerGroup = marker.name.split( ':', 1 )[ 0 ];\n\n\t\tif ( !this._observedMarkers.has( markerGroup ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet changed = false;\n\n\t\tconst oldMarkers = Array.from( this.markers );\n\t\tconst hasMarker = this.markers.has( marker );\n\n\t\tif ( !markerRange ) {\n\t\t\tif ( hasMarker ) {\n\t\t\t\tthis.markers.remove( marker );\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t} else {\n\t\t\tlet contained = false;\n\n\t\t\tfor ( const selectionRange of this.getRanges() ) {\n\t\t\t\tif ( markerRange.containsRange( selectionRange, !selectionRange.isCollapsed ) ) {\n\t\t\t\t\tcontained = true;\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( contained && !hasMarker ) {\n\t\t\t\tthis.markers.add( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t} else if ( !contained && hasMarker ) {\n\t\t\t\tthis.markers.remove( marker );\n\n\t\t\t\tchanged = true;\n\t\t\t}\n\t\t}\n\n\t\tif ( changed ) {\n\t\t\tthis.fire<DocumentSelectionChangeMarkerEvent>( 'change:marker', { oldMarkers, directChange: false } );\n\t\t}\n\t}\n\n\t/**\n\t * Updates this selection attributes according to its ranges and the {@link module:engine/model/document~Document model document}.\n\t */\n\tpublic _updateAttributes( clearAll: boolean ): void {\n\t\tconst newAttributes = toMap( this._getSurroundingAttributes() );\n\t\tconst oldAttributes = toMap( this.getAttributes() );\n\n\t\tif ( clearAll ) {\n\t\t\t// If `clearAll` remove all attributes and reset priorities.\n\t\t\tthis._attributePriority = new Map();\n\t\t\tthis._attrs = new Map();\n\t\t} else {\n\t\t\t// If not, remove only attributes added with `low` priority.\n\t\t\tfor ( const [ key, priority ] of this._attributePriority ) {\n\t\t\t\tif ( priority == 'low' ) {\n\t\t\t\t\tthis._attrs.delete( key );\n\t\t\t\t\tthis._attributePriority.delete( key );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tthis._setAttributesTo( newAttributes );\n\n\t\t// Let's evaluate which attributes really changed.\n\t\tconst changed = [];\n\n\t\t// First, loop through all attributes that are set on selection right now.\n\t\t// Check which of them are different than old attributes.\n\t\tfor ( const [ newKey, newValue ] of this.getAttributes() ) {\n\t\t\tif ( !oldAttributes.has( newKey ) || oldAttributes.get( newKey ) !== newValue ) {\n\t\t\t\tchanged.push( newKey );\n\t\t\t}\n\t\t}\n\n\t\t// Then, check which of old attributes got removed.\n\t\tfor ( const [ oldKey ] of oldAttributes ) {\n\t\t\tif ( !this.hasAttribute( oldKey ) ) {\n\t\t\t\tchanged.push( oldKey );\n\t\t\t}\n\t\t}\n\n\t\t// Fire event with exact data (fire only if anything changed).\n\t\tif ( changed.length > 0 ) {\n\t\t\tthis.fire<DocumentSelectionChangeAttributeEvent>( 'change:attribute', { attributeKeys: changed, directChange: false } );\n\t\t}\n\t}\n\n\t/**\n\t * Internal method for setting `LiveSelection` attribute. Supports attribute priorities (through `directChange`\n\t * parameter).\n\t */\n\tprivate _setAttribute( key: string, value: unknown, directChange: boolean = true ): boolean {\n\t\tconst priority = directChange ? 'normal' : 'low';\n\n\t\tif ( priority == 'low' && this._attributePriority.get( key ) == 'normal' ) {\n\t\t\t// Priority too low.\n\t\t\treturn false;\n\t\t}\n\n\t\tconst oldValue = super.getAttribute( key );\n\n\t\t// Don't do anything if value has not changed.\n\t\tif ( oldValue === value ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tthis._attrs.set( key, value );\n\n\t\t// Update priorities map.\n\t\tthis._attributePriority.set( key, priority );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Internal method for removing `LiveSelection` attribute. Supports attribute priorities (through `directChange`\n\t * parameter).\n\t *\n\t * NOTE: Even if attribute is not present in the selection but is provided to this method, it's priority will\n\t * be changed according to `directChange` parameter.\n\t */\n\tprivate _removeAttribute( key: string, directChange: boolean = true ): boolean {\n\t\tconst priority = directChange ? 'normal' : 'low';\n\n\t\tif ( priority == 'low' && this._attributePriority.get( key ) == 'normal' ) {\n\t\t\t// Priority too low.\n\t\t\treturn false;\n\t\t}\n\n\t\t// Update priorities map.\n\t\tthis._attributePriority.set( key, priority );\n\n\t\t// Don't do anything if value has not changed.\n\t\tif ( !super.hasAttribute( key ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tthis._attrs.delete( key );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Internal method for setting multiple `LiveSelection` attributes. Supports attribute priorities (through\n\t * `directChange` parameter).\n\t */\n\tprivate _setAttributesTo( attrs: Map<string, unknown> ): Set<string> {\n\t\tconst changed = new Set<string>();\n\n\t\tfor ( const [ oldKey, oldValue ] of this.getAttributes() ) {\n\t\t\t// Do not remove attribute if attribute with same key and value is about to be set.\n\t\t\tif ( attrs.get( oldKey ) === oldValue ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// All rest attributes will be removed so changed attributes won't change .\n\t\t\tthis._removeAttribute( oldKey, false );\n\t\t}\n\n\t\tfor ( const [ key, value ] of attrs ) {\n\t\t\t// Attribute may not be set because of attributes or because same key/value is already added.\n\t\t\tconst gotAdded = this._setAttribute( key, value, false );\n\n\t\t\tif ( gotAdded ) {\n\t\t\t\tchanged.add( key );\n\t\t\t}\n\t\t}\n\n\t\treturn changed;\n\t}\n\n\t/**\n\t * Returns an iterable that iterates through all selection attributes stored in current selection's parent.\n\t */\n\tpublic* getStoredAttributes(): IterableIterator<[ string, unknown ]> {\n\t\tconst selectionParent = this.getFirstPosition()!.parent as Element;\n\n\t\tif ( this.isCollapsed && selectionParent.isEmpty ) {\n\t\t\tfor ( const key of selectionParent.getAttributeKeys() ) {\n\t\t\t\tif ( key.startsWith( storePrefix ) ) {\n\t\t\t\t\tconst realKey = key.substr( storePrefix.length );\n\n\t\t\t\t\tyield [ realKey, selectionParent.getAttribute( key ) ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks model text nodes that are closest to the selection's first position and returns attributes of first\n\t * found element. If there are no text nodes in selection's first position parent, it returns selection\n\t * attributes stored in that parent.\n\t */\n\tprivate _getSurroundingAttributes(): Iterable<[ string, unknown ]> | null {\n\t\tconst position = this.getFirstPosition()!;\n\t\tconst schema = this._model.schema;\n\n\t\tlet attrs = null;\n\n\t\tif ( !this.isCollapsed ) {\n\t\t\t// 1. If selection is a range...\n\t\t\tconst range = this.getFirstRange();\n\n\t\t\t// ...look for a first character node in that range and take attributes from it.\n\t\t\tfor ( const value of range ) {\n\t\t\t\t// If the item is an object, we don't want to get attributes from its children.\n\t\t\t\tif ( value.item.is( 'element' ) && schema.isObject( value.item ) ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tif ( value.type == 'text' ) {\n\t\t\t\t\tattrs = value.item.getAttributes();\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\t// 2. If the selection is a caret or the range does not contain a character node...\n\n\t\t\tconst nodeBefore = position.textNode ? position.textNode : position.nodeBefore;\n\t\t\tconst nodeAfter = position.textNode ? position.textNode : position.nodeAfter;\n\n\t\t\t// When gravity is overridden then don't take node before into consideration.\n\t\t\tif ( !this.isGravityOverridden ) {\n\t\t\t\t// ...look at the node before caret and take attributes from it if it is a character node.\n\t\t\t\tattrs = getAttrsIfCharacter( nodeBefore! );\n\t\t\t}\n\n\t\t\t// 3. If not, look at the node after caret...\n\t\t\tif ( !attrs ) {\n\t\t\t\tattrs = getAttrsIfCharacter( nodeAfter! );\n\t\t\t}\n\n\t\t\t// 4. If not, try to find the first character on the left, that is in the same node.\n\t\t\t// When gravity is overridden then don't take node before into consideration.\n\t\t\tif ( !this.isGravityOverridden && !attrs ) {\n\t\t\t\tlet node = nodeBefore;\n\n\t\t\t\twhile ( node && !schema.isInline( node ) && !attrs ) {\n\t\t\t\t\tnode = node.previousSibling;\n\t\t\t\t\tattrs = getAttrsIfCharacter( node! );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// 5. If not found, try to find the first character on the right, that is in the same node.\n\t\t\tif ( !attrs ) {\n\t\t\t\tlet node = nodeAfter;\n\n\t\t\t\twhile ( node && !schema.isInline( node ) && !attrs ) {\n\t\t\t\t\tnode = node.nextSibling;\n\t\t\t\t\tattrs = getAttrsIfCharacter( node! );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// 6. If not found, selection should retrieve attributes from parent.\n\t\t\tif ( !attrs ) {\n\t\t\t\tattrs = this.getStoredAttributes();\n\t\t\t}\n\t\t}\n\n\t\treturn attrs;\n\t}\n\n\t/**\n\t * Fixes the selection after all its ranges got removed.\n\t * @param deletionPosition Position where the deletion happened.\n\t */\n\tprivate _fixGraveyardSelection( deletionPosition: Position ): void {\n\t\t// Find a range that is a correct selection range and is closest to the position where the deletion happened.\n\t\tconst selectionRange = this._model.schema.getNearestSelectionRange( deletionPosition );\n\n\t\t// If nearest valid selection range has been found - add it in the place of old range.\n\t\tif ( selectionRange ) {\n\t\t\t// Check the range, convert it to live range, bind events, etc.\n\t\t\tthis._pushRange( selectionRange );\n\t\t}\n\t\t// If nearest valid selection range cannot be found don't add any range. Selection will be set to the default range.\n\t}\n}\n\n/**\n * Helper function for {@link module:engine/model/liveselection~LiveSelection#_updateAttributes}.\n *\n * It takes model item, checks whether it is a text node (or text proxy) and, if so, returns it's attributes. If not, returns `null`.\n */\nfunction getAttrsIfCharacter( node: Item ) {\n\tif ( node instanceof TextProxy || node instanceof Text ) {\n\t\treturn node.getAttributes();\n\t}\n\n\treturn null;\n}\n\n/**\n * Removes selection attributes from element which is not empty anymore.\n */\nfunction clearAttributesStoredInElement( model: Model, batch: Batch ) {\n\tconst differ = model.document.differ;\n\n\tfor ( const entry of differ.getChanges() ) {\n\t\tif ( entry.type != 'insert' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst changeParent = entry.position.parent as Element;\n\t\tconst isNoLongerEmpty = entry.length === changeParent.maxOffset;\n\n\t\tif ( isNoLongerEmpty ) {\n\t\t\tmodel.enqueueChange( batch, writer => {\n\t\t\t\tconst storedAttributes = Array.from( changeParent.getAttributeKeys() )\n\t\t\t\t\t.filter( key => key.startsWith( storePrefix ) );\n\n\t\t\t\tfor ( const key of storedAttributes ) {\n\t\t\t\t\twriter.removeAttribute( key, changeParent );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/conversionhelpers\n */\n\n/**\n * Base class for conversion helpers.\n */\nexport default class ConversionHelpers<TDispatcher> {\n\tprivate readonly _dispatchers: Array<TDispatcher>;\n\n\t/**\n\t * Creates a conversion helpers instance.\n\t */\n\tconstructor( dispatchers: Array<TDispatcher> ) {\n\t\tthis._dispatchers = dispatchers;\n\t}\n\n\t/**\n\t * Registers a conversion helper.\n\t *\n\t * **Note**: See full usage example in the `{@link module:engine/conversion/conversion~Conversion#for conversion.for()}`\n\t * method description.\n\t *\n\t * @param conversionHelper The function to be called on event.\n\t */\n\tpublic add( conversionHelper: ( dispatcher: TDispatcher ) => void ): this {\n\t\tfor ( const dispatcher of this._dispatchers ) {\n\t\t\tconversionHelper( dispatcher );\n\t\t}\n\n\t\treturn this;\n\t}\n}\n","import baseClone from './_baseClone.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n    CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\nfunction cloneDeep(value) {\n  return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n}\n\nexport default cloneDeep;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * Contains downcast (model-to-view) converters for {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}.\n *\n * @module engine/conversion/downcasthelpers\n */\n\nimport ModelRange from '../model/range';\nimport ModelSelection from '../model/selection';\nimport ModelDocumentSelection from '../model/documentselection';\nimport ModelElement from '../model/element';\nimport ModelPosition from '../model/position';\n\nimport ViewAttributeElement from '../view/attributeelement';\nimport ConversionHelpers from './conversionhelpers';\n\nimport type {\n\tdefault as DowncastDispatcher,\n\tDiffItemReinsert,\n\tDowncastConversionApi,\n\tDowncastInsertEvent,\n\tDowncastAddMarkerEvent,\n\tDowncastAttributeEvent,\n\tDowncastReduceChangesEvent,\n\tDowncastRemoveMarkerEvent\n} from './downcastdispatcher';\nimport type ModelConsumable from './modelconsumable';\nimport type { DiffItem } from '../model/differ';\nimport type ModelNode from '../model/node';\nimport type ModelItem from '../model/item';\nimport type ModelTextProxy from '../model/textproxy';\nimport type ModelText from '../model/text';\n\nimport type DowncastWriter from '../view/downcastwriter';\nimport type ElementDefinition from '../view/elementdefinition';\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type UIElement from '../view/uielement';\nimport type ViewElement from '../view/element';\nimport type ViewNode from '../view/node';\nimport type ViewPosition from '../view/position';\nimport type ViewRange from '../view/range';\nimport type {\n\tdefault as Mapper,\n\tMapperModelToViewPositionEvent\n} from './mapper';\n\nimport {\n\tCKEditorError,\n\ttoArray,\n\ttype EventInfo,\n\ttype PriorityString\n} from '@ckeditor/ckeditor5-utils';\n\nimport { cloneDeep } from 'lodash-es';\n\n/**\n * Downcast conversion helper functions.\n *\n * Learn more about {@glink framework/deep-dive/conversion/downcast downcast helpers}.\n *\n * @extends module:engine/conversion/conversionhelpers~ConversionHelpers\n */\nexport default class DowncastHelpers extends ConversionHelpers<DowncastDispatcher> {\n\t/**\n\t * Model element to view element conversion helper.\n\t *\n\t * This conversion results in creating a view element. For example, model `<paragraph>Foo</paragraph>` becomes `<p>Foo</p>` in the view.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).elementToElement( {\n\t * \tmodel: 'paragraph',\n\t * \tview: 'p'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).elementToElement( {\n\t * \tmodel: 'paragraph',\n\t * \tview: 'div',\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).elementToElement( {\n\t * \tmodel: 'fancyParagraph',\n\t * \tview: {\n\t * \t\tname: 'p',\n\t * \t\tclasses: 'fancy'\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).elementToElement( {\n\t * \tmodel: 'heading',\n\t * \tview: ( modelElement, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\treturn writer.createContainerElement( 'h' + modelElement.getAttribute( 'level' ) );\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * The element-to-element conversion supports the reconversion mechanism. It can be enabled by using either the `attributes` or\n\t * the `children` props on a model description. You will find a couple examples below.\n\t *\n\t * In order to reconvert an element if any of its direct children have been added or removed, use the `children` property on a `model`\n\t * description. For example, this model:\n\t *\n\t * ```xml\n\t * <box>\n\t * \t<paragraph>Some text.</paragraph>\n\t * </box>\n\t * ```\n\t *\n\t * will be converted into this structure in the view:\n\t *\n\t * ```html\n\t * <div class=\"box\" data-type=\"single\">\n\t * \t<p>Some text.</p>\n\t * </div>\n\t * ```\n\t *\n\t * But if more items were inserted in the model:\n\t *\n\t * ```xml\n\t * <box>\n\t * \t<paragraph>Some text.</paragraph>\n\t * \t<paragraph>Other item.</paragraph>\n\t * </box>\n\t * ```\n\t *\n\t * it will be converted into this structure in the view (note the element `data-type` change):\n\t *\n\t * ```html\n\t * <div class=\"box\" data-type=\"multiple\">\n\t * \t<p>Some text.</p>\n\t * \t<p>Other item.</p>\n\t * </div>\n\t * ```\n\t *\n\t * Such a converter would look like this (note that the `paragraph` elements are converted separately):\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).elementToElement( {\n\t * \tmodel: {\n\t * \t\tname: 'box',\n\t * \t\tchildren: true\n\t * \t},\n\t * \tview: ( modelElement, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\treturn writer.createContainerElement( 'div', {\n\t * \t\t\tclass: 'box',\n\t * \t\t\t'data-type': modelElement.childCount == 1 ? 'single' : 'multiple'\n\t * \t\t} );\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * In order to reconvert element if any of its attributes have been updated, use the `attributes` property on a `model`\n\t * description. For example, this model:\n\t *\n\t * ```xml\n\t * <heading level=\"2\">Some text.</heading>\n\t * ```\n\t *\n\t * will be converted into this structure in the view:\n\t *\n\t * ```html\n\t * <h2>Some text.</h2>\n\t * ```\n\t *\n\t * But if the `heading` element's `level` attribute has been updated to `3` for example, then\n\t * it will be converted into this structure in the view:\n\t *\n\t * ```html\n\t * <h3>Some text.</h3>\n\t * ```\n\t *\n\t * Such a converter would look as follows:\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).elementToElement( {\n\t * \tmodel: {\n\t * \t\tname: 'heading',\n\t * \t\tattributes: 'level'\n\t * \t},\n\t * \tview: ( modelElement, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\treturn writer.createContainerElement( 'h' + modelElement.getAttribute( 'level' ) );\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * You can read more about the element-to-element conversion in the\n\t * {@glink framework/deep-dive/conversion/downcast downcast conversion} guide.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.model The description or a name of the model element to convert.\n\t * @param config.model.attributes The list of attribute names that should be consumed while creating\n\t * the view element. Note that the view will be reconverted if any of the listed attributes changes.\n \t * @param config.model.children Specifies whether the view element requires reconversion if the list\n\t * of the model child nodes changed.\n\t * @param config.view A view element definition or a function that takes the model element and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as parameters and returns a view container element.\n\t */\n\tpublic elementToElement( config: {\n\t\tmodel: string | {\n\t\t\tname: string;\n\t\t\tattributes?: string | Array<string>;\n\t\t\tchildren?: boolean;\n\t\t};\n\t\tview: ElementDefinition | ElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastElementToElement( config ) );\n\t}\n\n\t/**\n\t * The model element to view structure (several elements) conversion helper.\n\t *\n\t * This conversion results in creating a view structure with one or more slots defined for the child nodes.\n\t * For example, a model `<table>` may become this structure in the view:\n\t *\n\t * ```html\n\t * <figure class=\"table\">\n\t * \t<table>\n\t * \t\t<tbody>${ slot for table rows }</tbody>\n\t * \t</table>\n\t * </figure>\n\t * ```\n\t *\n\t * The children of the model's `<table>` element will be inserted into the `<tbody>` element.\n\t * If the `elementToElement()` helper was used, the children would be inserted into the `<figure>`.\n\t *\n\t * An example converter that converts the following model structure:\n\t *\n\t * ```xml\n\t * <wrappedParagraph>Some text.</wrappedParagraph>\n\t * ```\n\t *\n\t * into this structure in the view:\n\t *\n\t * ```html\n\t * <div class=\"wrapper\">\n\t * \t<p>Some text.</p>\n\t * </div>\n\t * ```\n\t *\n\t * would look like this:\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).elementToStructure( {\n\t * \tmodel: 'wrappedParagraph',\n\t * \tview: ( modelElement, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\tconst wrapperViewElement = writer.createContainerElement( 'div', { class: 'wrapper' } );\n\t * \t\tconst paragraphViewElement = writer.createContainerElement( 'p' );\n\t *\n\t * \t\twriter.insert( writer.createPositionAt( wrapperViewElement, 0 ), paragraphViewElement );\n\t * \t\twriter.insert( writer.createPositionAt( paragraphViewElement, 0 ), writer.createSlot() );\n\t *\n\t * \t\treturn wrapperViewElement;\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * The `slorFor()` function can also take a callback that allows filtering which children of the model element\n\t * should be converted into this slot.\n\t *\n\t * Imagine a table feature where for this model structure:\n\t *\n\t * ```xml\n\t * <table headingRows=\"1\">\n\t * \t<tableRow> ... table cells 1 ... </tableRow>\n\t * \t<tableRow> ... table cells 2 ... </tableRow>\n\t * \t<tableRow> ... table cells 3 ... </tableRow>\n\t * \t<caption>Caption text</caption>\n\t * </table>\n\t * ```\n\t *\n\t * we want to generate this view structure:\n\t *\n\t * ```html\n\t * <figure class=\"table\">\n\t * \t<table>\n\t * \t\t<thead>\n\t * \t\t\t<tr> ... table cells 1 ... </tr>\n\t * \t\t</thead>\n\t * \t\t<tbody>\n\t * \t\t\t<tr> ... table cells 2 ... </tr>\n\t * \t\t\t<tr> ... table cells 3 ... </tr>\n\t * \t\t</tbody>\n\t * \t</table>\n\t * \t<figcaption>Caption text</figcaption>\n\t * </figure>\n\t * ```\n\t *\n\t * The converter has to take the `headingRows` attribute into consideration when allocating the `<tableRow>` elements\n\t * into the `<tbody>` and `<thead>` elements. Hence, we need two slots and need to define proper filter callbacks for them.\n\t *\n\t * Additionally, all elements other than `<tableRow>` should be placed outside the `<table>` tag.\n\t * In the example above, this will handle the table caption.\n\t *\n\t * Such a converter would look like this:\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).elementToStructure( {\n\t * \tmodel: {\n\t * \t\tname: 'table',\n\t * \t\tattributes: [ 'headingRows' ]\n\t * \t},\n\t * \tview: ( modelElement, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\tconst figureElement = writer.createContainerElement( 'figure', { class: 'table' } );\n\t * \t\tconst tableElement = writer.createContainerElement( 'table' );\n\t *\n\t * \t\twriter.insert( writer.createPositionAt( figureElement, 0 ), tableElement );\n\t *\n\t * \t\tconst headingRows = modelElement.getAttribute( 'headingRows' ) || 0;\n\t *\n\t * \t\tif ( headingRows > 0 ) {\n\t * \t\t\tconst tableHead = writer.createContainerElement( 'thead' );\n\t *\n\t * \t\t\tconst headSlot = writer.createSlot( node => node.is( 'element', 'tableRow' ) && node.index < headingRows );\n\t *\n\t * \t\t\twriter.insert( writer.createPositionAt( tableElement, 'end' ), tableHead );\n\t * \t\t\twriter.insert( writer.createPositionAt( tableHead, 0 ), headSlot );\n\t * \t\t}\n\t *\n\t * \t\tif ( headingRows < tableUtils.getRows( table ) ) {\n\t * \t\t\tconst tableBody = writer.createContainerElement( 'tbody' );\n\t *\n\t * \t\t\tconst bodySlot = writer.createSlot( node => node.is( 'element', 'tableRow' ) && node.index >= headingRows );\n\t *\n\t * \t\t\twriter.insert( writer.createPositionAt( tableElement, 'end' ), tableBody );\n\t * \t\t\twriter.insert( writer.createPositionAt( tableBody, 0 ), bodySlot );\n\t * \t\t}\n\t *\n\t * \t\tconst restSlot = writer.createSlot( node => !node.is( 'element', 'tableRow' ) );\n\t *\n\t * \t\twriter.insert( writer.createPositionAt( figureElement, 'end' ), restSlot );\n\t *\n\t * \t\treturn figureElement;\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * Note: The children of a model element that's being converted must be allocated in the same order in the view\n\t * in which they are placed in the model.\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n \t * @param config.model The description or a name of the model element to convert.\n\t * @param config.model.name The name of the model element to convert.\n \t * @param config.model.attributes The list of attribute names that should be consumed while creating\n\t * the view structure. Note that the view will be reconverted if any of the listed attributes will change.\n\t * @param config.view A function that takes the model element and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as parameters\n\t * and returns a view container element with slots for model child nodes to be converted into.\n\t */\n\tpublic elementToStructure( config: {\n\t\tmodel: string | {\n\t\t\tname: string;\n\t\t\tattributes?: string | Array<string>;\n\t\t};\n\t\tview: StructureCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastElementToStructure( config ) );\n\t}\n\n\t/**\n\t * Model attribute to view element conversion helper.\n\t *\n\t * This conversion results in wrapping view nodes with a view attribute element. For example, a model text node with\n\t * `\"Foo\"` as data and the `bold` attribute becomes `<strong>Foo</strong>` in the view.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).attributeToElement( {\n\t * \tmodel: 'bold',\n\t * \tview: 'strong'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToElement( {\n\t * \tmodel: 'bold',\n\t * \tview: 'b',\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToElement( {\n\t * \tmodel: 'invert',\n\t * \tview: {\n\t * \t\tname: 'span',\n\t * \t\tclasses: [ 'font-light', 'bg-dark' ]\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToElement( {\n\t * \tmodel: {\n\t * \t\tkey: 'fontSize',\n\t * \t\tvalues: [ 'big', 'small' ]\n\t * \t},\n\t * \tview: {\n\t * \t\tbig: {\n\t * \t\t\tname: 'span',\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'font-size': '1.2em'\n\t * \t\t\t}\n\t * \t\t},\n\t * \t\tsmall: {\n\t * \t\t\tname: 'span',\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'font-size': '0.8em'\n\t * \t\t\t}\n\t * \t\t}\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToElement( {\n\t * \tmodel: 'bold',\n\t * \tview: ( modelAttributeValue, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\treturn writer.createAttributeElement( 'span', {\n\t * \t\t\tstyle: 'font-weight:' + modelAttributeValue\n\t * \t\t} );\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToElement( {\n\t * \tmodel: {\n\t * \t\tkey: 'color',\n\t * \t\tname: '$text'\n\t * \t},\n\t * \tview: ( modelAttributeValue, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\treturn writer.createAttributeElement( 'span', {\n\t * \t\t\tstyle: 'color:' + modelAttributeValue\n\t * \t\t} );\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.model The key of the attribute to convert from or a `{ key, values }` object. `values` is an array\n\t * of `String`s with possible values if the model attribute is an enumerable.\n\t * @param config.view A view element definition or a function\n\t * that takes the model attribute value and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as parameters and returns a view\n\t * attribute element. If `config.model.values` is given, `config.view` should be an object assigning values from `config.model.values`\n\t * to view element definitions or functions.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic attributeToElement<TValues extends string>(\n\t\tconfig: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: ElementDefinition | AttributeElementCreatorFunction;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, ElementDefinition | AttributeElementCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t}\n\t): this {\n\t\treturn this.add( downcastAttributeToElement( config ) );\n\t}\n\n\t/**\n\t * Model attribute to view attribute conversion helper.\n\t *\n\t * This conversion results in adding an attribute to a view node, basing on an attribute from a model node. For example,\n\t * `<imageInline src='foo.jpg'></imageInline>` is converted to `<img src='foo.jpg'></img>`.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t * \tmodel: 'source',\n\t * \tview: 'src'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t * \tmodel: 'source',\n\t * \tview: 'href',\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t * \tmodel: {\n\t * \t\tname: 'imageInline',\n\t * \t\tkey: 'source'\n\t * \t},\n\t * \tview: 'src'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t * \tmodel: {\n\t * \t\tname: 'styled',\n\t * \t\tvalues: [ 'dark', 'light' ]\n\t * \t},\n\t * \tview: {\n\t * \t\tdark: {\n\t * \t\t\tkey: 'class',\n\t * \t\t\tvalue: [ 'styled', 'styled-dark' ]\n\t * \t\t},\n\t * \t\tlight: {\n\t * \t\t\tkey: 'class',\n\t * \t\t\tvalue: [ 'styled', 'styled-light' ]\n\t * \t\t}\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t * \tmodel: 'styled',\n\t * \tview: modelAttributeValue => ( {\n\t * \t\tkey: 'class',\n\t * \t\tvalue: 'styled-' + modelAttributeValue\n\t * \t} )\n\t * } );\n\t * ```\n\t *\n\t * **Note**: Downcasting to a style property requires providing `value` as an object:\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t * \tmodel: 'lineHeight',\n\t * \tview: modelAttributeValue => ( {\n\t * \t\tkey: 'style',\n\t * \t\tvalue: {\n\t * \t\t\t'line-height': modelAttributeValue,\n\t * \t\t\t'border-bottom': '1px dotted #ba2'\n\t * \t\t}\n\t * \t} )\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.model The key of the attribute to convert from or a `{ key, values, [ name ] }` object describing\n\t * the attribute key, possible values and, optionally, an element name to convert from.\n\t * @param config.view A view attribute key, or a `{ key, value }` object or a function that takes the model attribute value and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as parameters and returns a `{ key, value }` object. If the `key` is `'class'`, the `value` can be a `String` or an\n\t * array of `String`s. If the `key` is `'style'`, the `value` is an object with key-value pairs. In other cases, `value` is a `String`.\n\t * If `config.model.values` is set, `config.view` should be an object assigning values from `config.model.values` to\n\t * `{ key, value }` objects or a functions.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic attributeToAttribute<TValues extends string>(\n\t\tconfig: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: string | AttributeDescriptor | AttributeCreatorFunction;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues?: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, AttributeDescriptor | AttributeCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t}\n\t): this {\n\t\treturn this.add( downcastAttributeToAttribute( config ) );\n\t}\n\n\t/**\n\t * Model marker to view element conversion helper.\n\t *\n\t * **Note**: This method should be used mainly for editing the downcast and it is recommended\n\t * to use the {@link #markerToData `#markerToData()`} helper instead.\n\t *\n\t * This helper may produce invalid HTML code (e.g. a span between table cells).\n\t * It should only be used when you are sure that the produced HTML will be semantically correct.\n\t *\n\t * This conversion results in creating a view element on the boundaries of the converted marker. If the converted marker\n\t * is collapsed, only one element is created. For example, a model marker set like this: `<paragraph>F[oo b]ar</paragraph>`\n\t * becomes `<p>F<span data-marker=\"search\"></span>oo b<span data-marker=\"search\"></span>ar</p>` in the view.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t * \tmodel: 'search',\n\t * \tview: 'marker-search'\n\t * } );\n\t *\n\t * editor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t * \tmodel: 'search',\n\t * \tview: 'search-result',\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t * \tmodel: 'search',\n\t * \tview: {\n\t * \t\tname: 'span',\n\t * \t\tattributes: {\n\t * \t\t\t'data-marker': 'search'\n\t * \t\t}\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t * \tmodel: 'search',\n\t * \tview: ( markerData, conversionApi ) => {\n\t * \t\tconst { writer } = conversionApi;\n\t *\n\t * \t\treturn writer.createUIElement( 'span', {\n\t * \t\t\t'data-marker': 'search',\n\t * \t\t\t'data-start': markerData.isOpening\n\t * \t\t} );\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * If a function is passed as the `config.view` parameter, it will be used to generate both boundary elements. The function\n\t * receives the `data` object and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as a parameters and should return an instance of the\n\t * {@link module:engine/view/uielement~UIElement view UI element}. The `data` object and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi `conversionApi`} are passed from\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker}. Additionally,\n\t * the `data.isOpening` parameter is passed, which is set to `true` for the marker start boundary element, and `false` for\n\t * the marker end boundary element.\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.model The name of the model marker (or model marker group) to convert.\n\t * @param config.view A view element definition or a function that takes the model marker data and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as a parameters\n\t * and returns a view UI element.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic markerToElement( config: {\n\t\tmodel: string;\n\t\tview: ElementDefinition | MarkerElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastMarkerToElement( config ) );\n\t}\n\n\t/**\n\t * Model marker to highlight conversion helper.\n\t *\n\t * This conversion results in creating a highlight on view nodes. For this kind of conversion,\n\t * the {@link module:engine/conversion/downcasthelpers~HighlightDescriptor} should be provided.\n\t *\n\t * For text nodes, a `<span>` {@link module:engine/view/attributeelement~AttributeElement} is created and it wraps all text nodes\n\t * in the converted marker range. For example, a model marker set like this: `<paragraph>F[oo b]ar</paragraph>` becomes\n\t * `<p>F<span class=\"comment\">oo b</span>ar</p>` in the view.\n\t *\n\t * {@link module:engine/view/containerelement~ContainerElement} may provide a custom way of handling highlight. Most often,\n\t * the element itself is given classes and attributes described in the highlight descriptor (instead of being wrapped in `<span>`).\n\t * For example, a model marker set like this:\n\t * `[<imageInline src=\"foo.jpg\"></imageInline>]` becomes `<img src=\"foo.jpg\" class=\"comment\"></img>` in the view.\n\t *\n\t * For container elements, the conversion is two-step. While the converter processes the highlight descriptor and passes it\n\t * to a container element, it is the container element instance itself that applies values from the highlight descriptor.\n\t * So, in a sense, the converter takes care of stating what should be applied on what, while the element decides how to apply that.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' ).markerToHighlight( { model: 'comment', view: { classes: 'comment' } } );\n\t *\n\t * editor.conversion.for( 'downcast' ).markerToHighlight( {\n\t * \tmodel: 'comment',\n\t * \tview: { classes: 'comment' },\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'downcast' ).markerToHighlight( {\n\t * \tmodel: 'comment',\n\t * \tview: ( data, conversionApi ) => {\n\t * \t\t// Assuming that the marker name is in a form of comment:commentType:commentId.\n\t * \t\tconst [ , commentType, commentId ] = data.markerName.split( ':' );\n\t *\n\t * \t\treturn {\n\t * \t\t\tclasses: [ 'comment', 'comment-' + commentType ],\n\t * \t\t\tattributes: { 'data-comment-id': commentId }\n\t * \t\t};\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * If a function is passed as the `config.view` parameter, it will be used to generate the highlight descriptor. The function\n\t * receives the `data` object and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n\t * as the parameters and should return a\n\t * {@link module:engine/conversion/downcasthelpers~HighlightDescriptor highlight descriptor}.\n\t * The `data` object properties are passed from {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker}.\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.model The name of the model marker (or model marker group) to convert.\n\t * @param config.view A highlight descriptor that will be used for highlighting or a function that takes the model marker data and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as a parameters\n\t * and returns a highlight descriptor.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic markerToHighlight( config: {\n\t\tmodel: string;\n\t\tview: HighlightDescriptor | HighlightDescriptorCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastMarkerToHighlight( config ) );\n\t}\n\n\t/**\n\t * Model marker converter for data downcast.\n\t *\n\t * This conversion creates a representation for model marker boundaries in the view:\n\t *\n\t * * If the marker boundary is before or after a model element, a view attribute is set on a corresponding view element.\n\t * * In other cases, a view element with the specified tag name is inserted at the corresponding view position.\n\t *\n\t * Typically, the marker names use the `group:uniqueId:otherData` convention. For example: `comment:e34zfk9k2n459df53sjl34:zx32c`.\n\t * The default configuration for this conversion is that the first part is the `group` part and the rest of\n\t * the marker name becomes the `name` part.\n\t *\n\t * Tag and attribute names and values are generated from the marker name:\n\t *\n\t * * The templates for attributes are `data-[group]-start-before=\"[name]\"`, `data-[group]-start-after=\"[name]\"`,\n\t * `data-[group]-end-before=\"[name]\"` and `data-[group]-end-after=\"[name]\"`.\n\t * * The templates for view elements are `<[group]-start name=\"[name]\">` and `<[group]-end name=\"[name]\">`.\n\t *\n\t * Attributes mark whether the given marker's start or end boundary is before or after the given element.\n\t * The `data-[group]-start-before` and `data-[group]-end-after` attributes are favored.\n\t * The other two are used when the former two cannot be used.\n\t *\n\t * The conversion configuration can take a function that will generate different group and name parts.\n\t * If such a function is set as the `config.view` parameter, it is passed a marker name and it is expected to return an object with two\n\t * properties: `group` and `name`. If the function returns a falsy value, the conversion will not take place.\n\t *\n\t * Basic usage:\n\t *\n\t * ```ts\n\t * // Using the default conversion.\n\t * // In this case, all markers with names starting with 'comment:' will be converted.\n\t * // The `group` parameter will be set to `comment`.\n\t * // The `name` parameter will be the rest of the marker name (without the `:`).\n\t * editor.conversion.for( 'dataDowncast' ).markerToData( {\n\t * \tmodel: 'comment'\n\t * } );\n\t * ```\n\t *\n\t * An example of a view that may be generated by this conversion (assuming a marker with the name `comment:commentId:uid` marked\n\t * by `[]`):\n\t *\n\t * ```\n\t * // Model:\n\t * <paragraph>Foo[bar</paragraph>\n\t * <imageBlock src=\"abc.jpg\"></imageBlock>]\n\t *\n\t * // View:\n\t * <p>Foo<comment-start name=\"commentId:uid\"></comment-start>bar</p>\n\t * <figure data-comment-end-after=\"commentId:uid\" class=\"image\"><img src=\"abc.jpg\" /></figure>\n\t * ```\n\t *\n\t * In the example above, the comment starts before \"bar\" and ends after the image.\n\t *\n\t * If the `name` part is empty, the following view may be generated:\n\t *\n\t * ```html\n\t * <p>Foo <myMarker-start></myMarker-start>bar</p>\n\t * <figure data-myMarker-end-after=\"\" class=\"image\"><img src=\"abc.jpg\" /></figure>\n\t * ```\n\t *\n\t * **Note:** A situation where some markers have the `name` part and some do not, is incorrect and should be avoided.\n\t *\n\t * Examples where `data-group-start-after` and `data-group-end-before` are used:\n\t *\n\t * ```\n\t * // Model:\n\t * <blockQuote>[]<paragraph>Foo</paragraph></blockQuote>\n\t *\n\t * // View:\n\t * <blockquote><p data-group-end-before=\"name\" data-group-start-before=\"name\">Foo</p></blockquote>\n\t * ```\n\t *\n\t * Similarly, when a marker is collapsed after the last element:\n\t *\n\t * ```\n\t * // Model:\n\t * <blockQuote><paragraph>Foo</paragraph>[]</blockQuote>\n\t *\n\t * // View:\n\t * <blockquote><p data-group-end-after=\"name\" data-group-start-after=\"name\">Foo</p></blockquote>\n\t * ```\n\t *\n\t * When there are multiple markers from the same group stored in the same attribute of the same element, their\n\t * name parts are put together in the attribute value, for example: `data-group-start-before=\"name1,name2,name3\"`.\n\t *\n\t * Other examples of usage:\n\t *\n\t * ```ts\n\t * // Using a custom function which is the same as the default conversion:\n\t * editor.conversion.for( 'dataDowncast' ).markerToData( {\n\t * \tmodel: 'comment'\n\t * \tview: markerName => ( {\n\t * \t\tgroup: 'comment',\n\t * \t\tname: markerName.substr( 8 ) // Removes 'comment:' part.\n\t * \t} )\n\t * } );\n\t *\n\t * // Using the converter priority:\n\t * editor.conversion.for( 'dataDowncast' ).markerToData( {\n\t * \tmodel: 'comment'\n\t * \tview: markerName => ( {\n\t * \t\tgroup: 'comment',\n\t * \t\tname: markerName.substr( 8 ) // Removes 'comment:' part.\n\t * \t} ),\n\t * \tconverterPriority: 'high'\n\t * } );\n\t * ```\n\t *\n\t * This kind of conversion is useful for saving data into the database, so it should be used in the data conversion pipeline.\n\t *\n\t * See the {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} API guide to learn how to\n\t * add a converter to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.model The name of the model marker (or the model marker group) to convert.\n\t * @param config.view A function that takes the model marker name and\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as the parameters\n\t * and returns an object with the `group` and `name` properties.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic markerToData( config: {\n\t\tmodel: string;\n\t\tview?: MarkerDataCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( downcastMarkerToData( config ) );\n\t}\n}\n\n/**\n * Function factory that creates a default downcast converter for text insertion changes.\n *\n * The converter automatically consumes the corresponding value from the consumables list and stops the event (see\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}).\n *\n * ```ts\n * modelDispatcher.on( 'insert:$text', insertText() );\n * ```\n *\n * @returns Insert text event converter.\n */\nexport function insertText() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { item: ModelText | ModelTextProxy; range: ModelRange },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\t\tconst viewText = viewWriter.createText( data.item.data );\n\n\t\tviewWriter.insert( viewPosition, viewText );\n\t};\n}\n\n/**\n * Function factory that creates a default downcast converter for triggering attributes and children conversion.\n *\n * @returns The converter.\n */\nexport function insertAttributesAndChildren() {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { item: ModelItem; reconversion?: boolean },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconversionApi.convertAttributes( data.item );\n\n\t\t// Start converting children of the current item.\n\t\t// In case of reconversion children were already re-inserted or converted separately.\n\t\tif ( !data.reconversion && data.item.is( 'element' ) && !data.item.isEmpty ) {\n\t\t\tconversionApi.convertChildren( data.item );\n\t\t}\n\t};\n}\n\n/**\n * Function factory that creates a default downcast converter for node remove changes.\n *\n * ```ts\n * modelDispatcher.on( 'remove', remove() );\n * ```\n *\n * @returns Remove event converter.\n */\nexport function remove() {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { position: ModelPosition; length: number },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\t// Find the view range start position by mapping the model position at which the remove happened.\n\t\tconst viewStart = conversionApi.mapper.toViewPosition( data.position );\n\n\t\tconst modelEnd = data.position.getShiftedBy( data.length );\n\t\tconst viewEnd = conversionApi.mapper.toViewPosition( modelEnd, { isPhantom: true } );\n\n\t\tconst viewRange = conversionApi.writer.createRange( viewStart, viewEnd );\n\n\t\t// Trim the range to remove in case some UI elements are on the view range boundaries.\n\t\tconst removed = conversionApi.writer.remove( viewRange.getTrimmed() );\n\n\t\t// After the range is removed, unbind all view elements from the model.\n\t\t// Range inside view document fragment is used to unbind deeply.\n\t\tfor ( const child of conversionApi.writer.createRangeIn( removed ).getItems() ) {\n\t\t\tconversionApi.mapper.unbindViewElement( child as ViewElement, { defer: true } );\n\t\t}\n\t};\n}\n\n/**\n * Creates a `<span>` {@link module:engine/view/attributeelement~AttributeElement view attribute element} from the information\n * provided by the {@link module:engine/conversion/downcasthelpers~HighlightDescriptor highlight descriptor} object. If the priority\n * is not provided in the descriptor, the default priority will be used.\n */\nexport function createViewElementFromHighlightDescriptor( writer: DowncastWriter, descriptor: HighlightDescriptor ): ViewAttributeElement {\n\tconst viewElement = writer.createAttributeElement( 'span', descriptor.attributes );\n\n\tif ( descriptor.classes ) {\n\t\tviewElement._addClass( descriptor.classes );\n\t}\n\n\tif ( typeof descriptor.priority === 'number' ) {\n\t\t( viewElement as any )._priority = descriptor.priority;\n\t}\n\n\t( viewElement as any )._id = descriptor.id;\n\n\treturn viewElement;\n}\n\n/**\n * Function factory that creates a converter which converts a non-collapsed {@link module:engine/model/selection~Selection model selection}\n * to a {@link module:engine/view/documentselection~DocumentSelection view selection}. The converter consumes appropriate\n * value from the `consumable` object and maps model positions from the selection to view positions.\n *\n * ```ts\n * modelDispatcher.on( 'selection', convertRangeSelection() );\n * ```\n *\n * @returns Selection converter.\n */\nexport function convertRangeSelection() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { selection: ModelSelection | ModelDocumentSelection },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst selection = data.selection;\n\n\t\tif ( selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( selection, 'selection' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewRanges: Array<ViewRange> = [];\n\n\t\tfor ( const range of selection.getRanges() ) {\n\t\t\tviewRanges.push( conversionApi.mapper.toViewRange( range ) );\n\t\t}\n\n\t\tconversionApi.writer.setSelection( viewRanges, { backward: selection.isBackward } );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts a collapsed {@link module:engine/model/selection~Selection model selection} to\n * a {@link module:engine/view/documentselection~DocumentSelection view selection}. The converter consumes appropriate\n * value from the `consumable` object, maps the model selection position to the view position and breaks\n * {@link module:engine/view/attributeelement~AttributeElement attribute elements} at the selection position.\n *\n * ```ts\n * modelDispatcher.on( 'selection', convertCollapsedSelection() );\n * ```\n *\n * An example of the view state before and after converting the collapsed selection:\n *\n * ```\n *    <p><strong>f^oo<strong>bar</p>\n * -> <p><strong>f</strong>^<strong>oo</strong>bar</p>\n * ```\n *\n * By breaking attribute elements like `<strong>`, the selection is in a correct element. Then, when the selection attribute is\n * converted, broken attributes might be merged again, or the position where the selection is may be wrapped\n * with different, appropriate attribute elements.\n *\n * See also {@link module:engine/conversion/downcasthelpers~clearAttributes} which does a clean-up\n * by merging attributes.\n *\n * @returns Selection converter.\n */\nexport function convertCollapsedSelection() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { selection: ModelSelection | ModelDocumentSelection },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst selection = data.selection;\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( selection, 'selection' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst modelPosition = selection.getFirstPosition()!;\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( modelPosition );\n\t\tconst brokenPosition = viewWriter.breakAttributes( viewPosition );\n\n\t\tviewWriter.setSelection( brokenPosition );\n\t};\n}\n\n/**\n * Function factory that creates a converter which clears artifacts after the previous\n * {@link module:engine/model/selection~Selection model selection} conversion. It removes all empty\n * {@link module:engine/view/attributeelement~AttributeElement view attribute elements} and merges sibling attributes at all start and end\n * positions of all ranges.\n *\n * ```\n *    <p><strong>^</strong></p>\n * -> <p>^</p>\n *\n *    <p><strong>foo</strong>^<strong>bar</strong>bar</p>\n * -> <p><strong>foo^bar<strong>bar</p>\n *\n *    <p><strong>foo</strong><em>^</em><strong>bar</strong>bar</p>\n * -> <p><strong>foo^bar<strong>bar</p>\n * ```\n *\n * This listener should be assigned before any converter for the new selection:\n *\n * ```ts\n * modelDispatcher.on( 'selection', clearAttributes() );\n * ```\n *\n * See {@link module:engine/conversion/downcasthelpers~convertCollapsedSelection}\n * which does the opposite by breaking attributes in the selection position.\n *\n * @returns Selection converter.\n */\nexport function clearAttributes() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: unknown,\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\tfor ( const range of viewSelection.getRanges() ) {\n\t\t\t// Not collapsed selection should not have artifacts.\n\t\t\tif ( range.isCollapsed ) {\n\t\t\t\t// Position might be in the node removed by the view writer.\n\t\t\t\tif ( ( range.end.parent as ViewNode ).isAttached() ) {\n\t\t\t\t\tconversionApi.writer.mergeAttributes( range.start );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tviewWriter.setSelection( null );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts the set/change/remove attribute changes from the model to the view.\n * It can also be used to convert selection attributes. In that case, an empty attribute element will be created and the\n * selection will be put inside it.\n *\n * Attributes from the model are converted to a view element that will be wrapping these view nodes that are bound to\n * model elements having the given attribute. This is useful for attributes like `bold` that may be set on text nodes in the model\n * but are represented as an element in the view:\n *\n * ```\n * [paragraph]              MODEL ====> VIEW        <p>\n * \t|- a {bold: true}                             |- <b>\n * \t|- b {bold: true}                             |   |- ab\n * \t|- c                                          |- c\n * \t```\n *\n * Passed `Function` will be provided with the attribute value and then all the parameters of the\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute` event}.\n * It is expected that the function returns an {@link module:engine/view/element~Element}.\n * The result of the function will be the wrapping element.\n * When the provided `Function` does not return any element, no conversion will take place.\n *\n * The converter automatically consumes the corresponding value from the consumables list and stops the event (see\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}).\n *\n * ```ts\n * modelDispatcher.on( 'attribute:bold', wrap( ( modelAttributeValue, { writer } ) => {\n * \treturn writer.createAttributeElement( 'strong' );\n * } );\n * ```\n *\n * @internal\n * @param elementCreator Function returning a view element that will be used for wrapping.\n * @returns Set/change attribute converter.\n */\nexport function wrap( elementCreator: AttributeElementCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\t\trange: ModelRange;\n\t\t\tattributeKey: string;\n\t\t\tattributeOldValue: unknown;\n\t\t\tattributeNewValue: unknown;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Recreate current wrapping node. It will be used to unwrap view range if the attribute value has changed\n\t\t// or the attribute was removed.\n\t\tconst oldViewElement = elementCreator( data.attributeOldValue, conversionApi, data );\n\n\t\t// Create node to wrap with.\n\t\tconst newViewElement = elementCreator( data.attributeNewValue, conversionApi, data );\n\n\t\tif ( !oldViewElement && !newViewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconversionApi.consumable.consume( data.item, evt.name );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\tif ( data.item instanceof ModelSelection || data.item instanceof ModelDocumentSelection ) {\n\t\t\t// Selection attribute conversion.\n\t\t\tviewWriter.wrap( viewSelection.getFirstRange()!, newViewElement! );\n\t\t} else {\n\t\t\t// Node attribute conversion.\n\t\t\tlet viewRange = conversionApi.mapper.toViewRange( data.range );\n\n\t\t\t// First, unwrap the range from current wrapper.\n\t\t\tif ( data.attributeOldValue !== null && oldViewElement ) {\n\t\t\t\tviewRange = viewWriter.unwrap( viewRange, oldViewElement );\n\t\t\t}\n\n\t\t\tif ( data.attributeNewValue !== null && newViewElement ) {\n\t\t\t\tviewWriter.wrap( viewRange, newViewElement );\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts node insertion changes from the model to the view.\n * The function passed will be provided with all the parameters of the dispatcher's\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert` event}.\n * It is expected that the function returns an {@link module:engine/view/element~Element}.\n * The result of the function will be inserted into the view.\n *\n * The converter automatically consumes the corresponding value from the consumables list and binds the model and view elements.\n *\n * ```ts\n * downcastDispatcher.on(\n * \t'insert:myElem',\n * \tinsertElement( ( modelItem, { writer } ) => {\n * \t\tconst text = writer.createText( 'myText' );\n * \t\tconst myElem = writer.createElement( 'myElem', { myAttr: 'my-' + modelItem.getAttribute( 'myAttr' ) }, text );\n *\n * \t\t// Do something fancy with `myElem` using `modelItem` or other parameters.\n *\n * \t\treturn myElem;\n * \t}\n * ) );\n * ```\n *\n * @internal\n * @param  elementCreator Function returning a view element, which will be inserted.\n * @param consumer Function defining element consumption process.\n * By default this function just consume passed item insertion.\n * @returns Insert element event converter.\n */\nexport function insertElement( elementCreator: ElementCreatorFunction, consumer: ConsumerFunction = defaultConsumer ) {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { item: ModelElement; range: ModelRange; reconversion?: boolean },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !consumer( data.item, conversionApi.consumable, { preflight: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewElement = elementCreator( data.item, conversionApi, data );\n\n\t\tif ( !viewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Consume an element insertion and all present attributes that are specified as a reconversion triggers.\n\t\tconsumer( data.item, conversionApi.consumable );\n\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\n\t\tconversionApi.mapper.bindElements( data.item, viewElement );\n\t\tconversionApi.writer.insert( viewPosition, viewElement );\n\n\t\t// Convert attributes before converting children.\n\t\tconversionApi.convertAttributes( data.item );\n\n\t\t// Convert children or reinsert previous view elements.\n\t\treinsertOrConvertNodes( viewElement, data.item.getChildren(), conversionApi, { reconversion: data.reconversion } );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts a single model node insertion to a view structure.\n *\n * It is expected that the passed element creator function returns an {@link module:engine/view/element~Element} with attached slots\n * created with `writer.createSlot()` to indicate where child nodes should be converted.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n *\n * @internal\n * @param elementCreator Function returning a view structure, which will be inserted.\n * @param consumer A callback that is expected to consume all the consumables\n * that were used by the element creator.\n * @returns Insert element event converter.\n*/\nexport function insertStructure( elementCreator: StructureCreatorFunction, consumer: ConsumerFunction ) {\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { item: ModelElement; range: ModelRange; reconversion?: boolean },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !consumer( data.item, conversionApi.consumable, { preflight: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst slotsMap = new Map<ViewElement, Array<ModelNode>>();\n\n\t\tconversionApi.writer._registerSlotFactory( createSlotFactory( data.item, slotsMap, conversionApi ) );\n\n\t\t// View creation.\n\t\tconst viewElement = elementCreator( data.item, conversionApi, data );\n\n\t\tconversionApi.writer._clearSlotFactory();\n\n\t\tif ( !viewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check if all children are covered by slots and there is no child that landed in multiple slots.\n\t\tvalidateSlotsChildren( data.item, slotsMap, conversionApi );\n\n\t\t// Consume an element insertion and all present attributes that are specified as a reconversion triggers.\n\t\tconsumer( data.item, conversionApi.consumable );\n\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\n\t\tconversionApi.mapper.bindElements( data.item, viewElement );\n\t\tconversionApi.writer.insert( viewPosition, viewElement );\n\n\t\t// Convert attributes before converting children.\n\t\tconversionApi.convertAttributes( data.item );\n\n\t\t// Fill view slots with previous view elements or create new ones.\n\t\tfillSlots( viewElement, slotsMap, conversionApi, { reconversion: data.reconversion } );\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts marker adding change to the\n * {@link module:engine/view/uielement~UIElement view UI element}.\n *\n * The view UI element that will be added to the view depends on the passed parameter. See {@link ~insertElement}.\n * In case of a non-collapsed range, the UI element will not wrap nodes but separate elements will be placed at the beginning\n * and at the end of the range.\n *\n * This converter binds created UI elements with the marker name using {@link module:engine/conversion/mapper~Mapper#bindElementToMarker}.\n *\n * @internal\n * @param elementCreator A view UI element or a function returning the view element that will be inserted.\n * @returns Insert element event converter.\n */\nexport function insertUIElement( elementCreator: MarkerElementCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\tmarkerRange: ModelRange;\n\t\t\tmarkerName: string;\n\t\t\tisOpening?: boolean;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\t// Create two view elements. One will be inserted at the beginning of marker, one at the end.\n\t\t// If marker is collapsed, only \"opening\" element will be inserted.\n\t\tdata.isOpening = true;\n\t\tconst viewStartElement = elementCreator( data, conversionApi );\n\n\t\tdata.isOpening = false;\n\t\tconst viewEndElement = elementCreator( data, conversionApi );\n\n\t\tif ( !viewStartElement || !viewEndElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst markerRange = data.markerRange;\n\n\t\t// Marker that is collapsed has consumable build differently that non-collapsed one.\n\t\t// For more information see `addMarker` event description.\n\t\t// If marker's range is collapsed - check if it can be consumed.\n\t\tif ( markerRange.isCollapsed && !conversionApi.consumable.consume( markerRange, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If marker's range is not collapsed - consume all items inside.\n\t\tfor ( const value of markerRange ) {\n\t\t\tif ( !conversionApi.consumable.consume( value.item, evt.name ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\tconst mapper = conversionApi.mapper;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// Add \"opening\" element.\n\t\tviewWriter.insert( mapper.toViewPosition( markerRange.start ), viewStartElement );\n\t\tconversionApi.mapper.bindElementToMarker( viewStartElement, data.markerName );\n\n\t\t// Add \"closing\" element only if range is not collapsed.\n\t\tif ( !markerRange.isCollapsed ) {\n\t\t\tviewWriter.insert( mapper.toViewPosition( markerRange.end ), viewEndElement );\n\t\t\tconversionApi.mapper.bindElementToMarker( viewEndElement, data.markerName );\n\t\t}\n\n\t\tevt.stop();\n\t};\n}\n\n/**\n * Function factory that returns a default downcast converter for removing a {@link module:engine/view/uielement~UIElement UI element}\n * based on marker remove change.\n *\n * This converter unbinds elements from the marker name.\n *\n * @returns Removed UI element converter.\n */\nfunction removeUIElement() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { markerName: string },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst elements = conversionApi.mapper.markerNameToElements( data.markerName );\n\n\t\tif ( !elements ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const element of elements ) {\n\t\t\tconversionApi.mapper.unbindElementFromMarkerName( element, data.markerName );\n\t\t\tconversionApi.writer.clear( conversionApi.writer.createRangeOn( element ), element );\n\t\t}\n\n\t\tconversionApi.writer.clearClonedElementsGroup( data.markerName );\n\n\t\tevt.stop();\n\t};\n}\n\n/**\n * Function factory that creates a default converter for model markers.\n *\n * See {@link DowncastHelpers#markerToData} for more information what type of view is generated.\n *\n * This converter binds created UI elements and affected view elements with the marker name\n * using {@link module:engine/conversion/mapper~Mapper#bindElementToMarker}.\n *\n * @returns Add marker converter.\n */\nfunction insertMarkerData( viewCreator: MarkerDataCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\tmarkerName: string;\n\t\t\tmarkerRange: ModelRange;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst viewMarkerData = viewCreator( data.markerName, conversionApi );\n\n\t\tif ( !viewMarkerData ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst markerRange = data.markerRange;\n\n\t\tif ( !conversionApi.consumable.consume( markerRange, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Adding closing data first to keep the proper order in the view.\n\t\thandleMarkerBoundary( markerRange, false, conversionApi, data, viewMarkerData );\n\t\thandleMarkerBoundary( markerRange, true, conversionApi, data, viewMarkerData );\n\n\t\tevt.stop();\n\t};\n}\n\n/**\n * Helper function for `insertMarkerData()` that marks a marker boundary at the beginning or end of given `range`.\n */\nfunction handleMarkerBoundary(\n\trange: ModelRange,\n\tisStart: boolean,\n\tconversionApi: DowncastConversionApi,\n\tdata: { markerName: string },\n\tviewMarkerData: { name: string; group: string }\n): void {\n\tconst modelPosition = isStart ? range.start : range.end;\n\tconst elementAfter = modelPosition.nodeAfter && modelPosition.nodeAfter.is( 'element' ) ? modelPosition.nodeAfter : null;\n\tconst elementBefore = modelPosition.nodeBefore && modelPosition.nodeBefore.is( 'element' ) ? modelPosition.nodeBefore : null;\n\n\tif ( elementAfter || elementBefore ) {\n\t\tlet modelElement;\n\t\tlet isBefore;\n\n\t\t// If possible, we want to add `data-group-start-before` and `data-group-end-after` attributes.\n\t\tif ( isStart && elementAfter || !isStart && !elementBefore ) {\n\t\t\t// [<elementAfter>...</elementAfter> -> <elementAfter data-group-start-before=\"...\">...</elementAfter>\n\t\t\t// <parent>]<elementAfter> -> <parent><elementAfter data-group-end-before=\"...\">\n\t\t\tmodelElement = elementAfter;\n\t\t\tisBefore = true;\n\t\t} else {\n\t\t\t// <elementBefore>...</elementBefore>] -> <elementBefore data-group-end-after=\"...\">...</elementBefore>\n\t\t\t// </elementBefore>[</parent> -> </elementBefore data-group-start-after=\"...\"></parent>\n\t\t\tmodelElement = elementBefore;\n\t\t\tisBefore = false;\n\t\t}\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( modelElement! );\n\n\t\t// In rare circumstances, the model element may be not mapped to any view element and that would cause an error.\n\t\t// One of those situations is a soft break inside code block.\n\t\tif ( viewElement ) {\n\t\t\tinsertMarkerAsAttribute( viewElement, isStart, isBefore, conversionApi, data, viewMarkerData );\n\n\t\t\treturn;\n\t\t}\n\t}\n\n\tconst viewPosition = conversionApi.mapper.toViewPosition( modelPosition );\n\n\tinsertMarkerAsElement( viewPosition, isStart, conversionApi, data, viewMarkerData );\n}\n\n/**\n * Helper function for `insertMarkerData()` that marks a marker boundary in the view as an attribute on a view element.\n */\nfunction insertMarkerAsAttribute(\n\tviewElement: ViewElement,\n\tisStart: boolean,\n\tisBefore: boolean,\n\tconversionApi: DowncastConversionApi,\n\tdata: { markerName: string },\n\tviewMarkerData: { name: string; group: string }\n) {\n\tconst attributeName = `data-${ viewMarkerData.group }-${ isStart ? 'start' : 'end' }-${ isBefore ? 'before' : 'after' }`;\n\n\tconst markerNames = viewElement.hasAttribute( attributeName ) ? viewElement.getAttribute( attributeName )!.split( ',' ) : [];\n\n\t// Adding marker name at the beginning to have the same order in the attribute as there is with marker elements.\n\tmarkerNames.unshift( viewMarkerData.name );\n\n\tconversionApi.writer.setAttribute( attributeName, markerNames.join( ',' ), viewElement );\n\tconversionApi.mapper.bindElementToMarker( viewElement, data.markerName );\n}\n\n/**\n * Helper function for `insertMarkerData()` that marks a marker boundary in the view as a separate view ui element.\n */\nfunction insertMarkerAsElement(\n\tposition: ViewPosition,\n\tisStart: boolean,\n\tconversionApi: DowncastConversionApi,\n\tdata: { markerName: string },\n\tviewMarkerData: { name: string; group: string }\n) {\n\tconst viewElementName = `${ viewMarkerData.group }-${ isStart ? 'start' : 'end' }`;\n\n\tconst attrs = viewMarkerData.name ? { 'name': viewMarkerData.name } : null;\n\tconst viewElement = conversionApi.writer.createUIElement( viewElementName, attrs );\n\n\tconversionApi.writer.insert( position, viewElement );\n\tconversionApi.mapper.bindElementToMarker( viewElement, data.markerName );\n}\n\n/**\n * Function factory that creates a converter for removing a model marker data added by the {@link #insertMarkerData} converter.\n *\n * @returns Remove marker converter.\n */\nfunction removeMarkerData( viewCreator: MarkerDataCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { markerName: string },\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tconst viewData = viewCreator( data.markerName, conversionApi );\n\n\t\tif ( !viewData ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst elements = conversionApi.mapper.markerNameToElements( data.markerName );\n\n\t\tif ( !elements ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const element of elements ) {\n\t\t\tconversionApi.mapper.unbindElementFromMarkerName( element, data.markerName );\n\n\t\t\tif ( element.is( 'containerElement' ) ) {\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-start-before`, element );\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-start-after`, element );\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-end-before`, element );\n\t\t\t\tremoveMarkerFromAttribute( `data-${ viewData.group }-end-after`, element );\n\t\t\t} else {\n\t\t\t\tconversionApi.writer.clear( conversionApi.writer.createRangeOn( element ), element );\n\t\t\t}\n\t\t}\n\n\t\tconversionApi.writer.clearClonedElementsGroup( data.markerName );\n\n\t\tevt.stop();\n\n\t\tfunction removeMarkerFromAttribute( attributeName: string, element: ViewElement ): void {\n\t\t\tif ( element.hasAttribute( attributeName ) ) {\n\t\t\t\tconst markerNames = new Set( element.getAttribute( attributeName )!.split( ',' ) );\n\n\t\t\t\tmarkerNames.delete( viewData!.name );\n\n\t\t\t\tif ( markerNames.size == 0 ) {\n\t\t\t\t\tconversionApi.writer.removeAttribute( attributeName, element );\n\t\t\t\t} else {\n\t\t\t\t\tconversionApi.writer.setAttribute( attributeName, Array.from( markerNames ).join( ',' ), element );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts the set/change/remove attribute changes from the model to the view.\n *\n * Attributes from the model are converted to the view element attributes in the view. You may provide a custom function to generate\n * a key-value attribute pair to add/change/remove. If not provided, model attributes will be converted to view element\n * attributes on a one-to-one basis.\n *\n * *Note:** The provided attribute creator should always return the same `key` for a given attribute from the model.\n *\n * The converter automatically consumes the corresponding value from the consumables list and stops the event (see\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher}).\n *\n * ```ts\n * modelDispatcher.on( 'attribute:customAttr:myElem', changeAttribute( ( value, data ) => {\n * \t// Change attribute key from `customAttr` to `class` in the view.\n * \tconst key = 'class';\n * \tlet value = data.attributeNewValue;\n *\n * \t// Force attribute value to 'empty' if the model element is empty.\n * \tif ( data.item.childCount === 0 ) {\n * \t\tvalue = 'empty';\n * \t}\n *\n * \t// Return the key-value pair.\n * \treturn { key, value };\n * } ) );\n * ```\n *\n * @param attributeCreator Function returning an object with two properties: `key` and `value`, which\n * represent the attribute key and attribute value to be set on a {@link module:engine/view/element~Element view element}.\n * The function is passed the model attribute value as the first parameter and additional data about the change as the second parameter.\n * @returns Set/change attribute converter.\n */\nfunction changeAttribute( attributeCreator: AttributeCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem: ModelElement;\n\t\t\trange: ModelRange;\n\t\t\tattributeKey: string;\n\t\t\tattributeOldValue: unknown;\n\t\t\tattributeNewValue: unknown;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst oldAttribute = attributeCreator( data.attributeOldValue, conversionApi, data );\n\t\tconst newAttribute = attributeCreator( data.attributeNewValue, conversionApi, data );\n\n\t\tif ( !oldAttribute && !newAttribute ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconversionApi.consumable.consume( data.item, evt.name );\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item );\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// If model item cannot be mapped to a view element, it means item is not an `Element` instance but a `TextProxy` node.\n\t\t// Only elements can have attributes in a view so do not proceed for anything else (#1587).\n\t\tif ( !viewElement ) {\n\t\t\t/**\n\t\t\t * This error occurs when a {@link module:engine/model/textproxy~TextProxy text node's} attribute is to be downcasted\n\t\t\t * by an {@link module:engine/conversion/conversion~Conversion#attributeToAttribute `Attribute to Attribute converter`}.\n\t\t\t * In most cases it is caused by converters misconfiguration when only \"generic\" converter is defined:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * editor.conversion.for( 'downcast' ).attributeToAttribute( {\n\t\t\t * \tmodel: 'attribute-name',\n\t\t\t * \tview: 'attribute-name'\n\t\t\t * } ) );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * and given attribute is used on text node, for example:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * model.change( writer => {\n\t\t\t * \twriter.insertText( 'Foo', { 'attribute-name': 'bar' }, parent, 0 );\n\t\t\t * } );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * In such cases, to convert the same attribute for both {@link module:engine/model/element~Element}\n\t\t\t * and {@link module:engine/model/textproxy~TextProxy `Text`} nodes, text specific\n\t\t\t * {@link module:engine/conversion/conversion~Conversion#attributeToElement `Attribute to Element converter`}\n\t\t\t * with higher {@link module:utils/priorities~PriorityString priority} must also be defined:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * editor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\t * \tmodel: {\n\t\t\t * \t\tkey: 'attribute-name',\n\t\t\t * \t\tname: '$text'\n\t\t\t * \t},\n\t\t\t * \tview: ( value, { writer } ) => {\n\t\t\t * \t\treturn writer.createAttributeElement( 'span', { 'attribute-name': value } );\n\t\t\t * \t},\n\t\t\t * \tconverterPriority: 'high'\n\t\t\t * } ) );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * @error conversion-attribute-to-attribute-on-text\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-attribute-to-attribute-on-text', conversionApi.dispatcher, data );\n\t\t}\n\n\t\t// First remove the old attribute if there was one.\n\t\tif ( data.attributeOldValue !== null && oldAttribute ) {\n\t\t\tif ( oldAttribute.key == 'class' ) {\n\t\t\t\tconst classes = toArray( oldAttribute.value );\n\n\t\t\t\tfor ( const className of classes ) {\n\t\t\t\t\tviewWriter.removeClass( className, viewElement );\n\t\t\t\t}\n\t\t\t} else if ( oldAttribute.key == 'style' ) {\n\t\t\t\tconst keys = Object.keys( oldAttribute.value );\n\n\t\t\t\tfor ( const key of keys ) {\n\t\t\t\t\tviewWriter.removeStyle( key, viewElement );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tviewWriter.removeAttribute( oldAttribute.key, viewElement );\n\t\t\t}\n\t\t}\n\n\t\t// Then set the new attribute.\n\t\tif ( data.attributeNewValue !== null && newAttribute ) {\n\t\t\tif ( newAttribute.key == 'class' ) {\n\t\t\t\tconst classes = toArray( newAttribute.value );\n\n\t\t\t\tfor ( const className of classes ) {\n\t\t\t\t\tviewWriter.addClass( className, viewElement );\n\t\t\t\t}\n\t\t\t} else if ( newAttribute.key == 'style' ) {\n\t\t\t\tconst keys = Object.keys( newAttribute.value );\n\n\t\t\t\tfor ( const key of keys ) {\n\t\t\t\t\tviewWriter.setStyle( key, ( newAttribute.value as Record<string, string> )[ key ], viewElement );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tviewWriter.setAttribute( newAttribute.key, newAttribute.value as string, viewElement );\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts the text inside marker's range. The converter wraps the text with\n * {@link module:engine/view/attributeelement~AttributeElement} created from the provided descriptor.\n * See {link module:engine/conversion/downcasthelpers~createViewElementFromHighlightDescriptor}.\n *\n * It can also be used to convert the selection that is inside a marker. In that case, an empty attribute element will be\n * created and the selection will be put inside it.\n *\n * If the highlight descriptor does not provide the `priority` property, `10` will be used.\n *\n * If the highlight descriptor does not provide the `id` property, the name of the marker will be used.\n *\n * This converter binds the created {@link module:engine/view/attributeelement~AttributeElement attribute elemens} with the marker name\n * using the {@link module:engine/conversion/mapper~Mapper#bindElementToMarker} method.\n */\nfunction highlightText( highlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem?: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\t\trange?: ModelRange;\n\t\t\tmarkerRange: ModelRange;\n\t\t\tmarkerName: string;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !data.item ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !( data.item instanceof ModelSelection || data.item instanceof ModelDocumentSelection ) && !data.item.is( '$textProxy' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst descriptor = prepareDescriptor( highlightDescriptor, data, conversionApi );\n\n\t\tif ( !descriptor ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewElement = createViewElementFromHighlightDescriptor( viewWriter, descriptor );\n\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\tif ( data.item instanceof ModelSelection || data.item instanceof ModelDocumentSelection ) {\n\t\t\tviewWriter.wrap( viewSelection.getFirstRange()!, viewElement );\n\t\t} else {\n\t\t\tconst viewRange = conversionApi.mapper.toViewRange( data.range! );\n\t\t\tconst rangeAfterWrap = viewWriter.wrap( viewRange, viewElement );\n\n\t\t\tfor ( const element of rangeAfterWrap.getItems() ) {\n\t\t\t\tif ( element.is( 'attributeElement' ) && element.isSimilar( viewElement ) ) {\n\t\t\t\t\tconversionApi.mapper.bindElementToMarker( element, data.markerName );\n\n\t\t\t\t\t// One attribute element is enough, because all of them are bound together by the view writer.\n\t\t\t\t\t// Mapper uses this binding to get all the elements no matter how many of them are registered in the mapper.\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Converter function factory. It creates a function which applies the marker's highlight to an element inside the marker's range.\n *\n * The converter checks if an element has the `addHighlight` function stored as a\n * {@link module:engine/view/element~Element#_setCustomProperty custom property} and, if so, uses it to apply the highlight.\n * In such case the converter will consume all element's children, assuming that they were handled by the element itself.\n *\n * When the `addHighlight` custom property is not present, the element is not converted in any special way.\n * This means that converters will proceed to convert the element's child nodes.\n *\n * If the highlight descriptor does not provide the `priority` property, `10` will be used.\n *\n * If the highlight descriptor does not provide the `id` property, the name of the marker will be used.\n *\n * This converter binds altered {@link module:engine/view/containerelement~ContainerElement container elements} with the marker name using\n * the {@link module:engine/conversion/mapper~Mapper#bindElementToMarker} method.\n */\nfunction highlightElement( highlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\titem?: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\t\tmarkerName: string;\n\t\t\tmarkerRange: ModelRange;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\tif ( !data.item ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !( data.item instanceof ModelElement ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst descriptor = prepareDescriptor( highlightDescriptor, data, conversionApi );\n\n\t\tif ( !descriptor ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item );\n\n\t\tif ( viewElement && viewElement.getCustomProperty( 'addHighlight' ) ) {\n\t\t\t// Consume element itself.\n\t\t\tconversionApi.consumable.consume( data.item, evt.name );\n\n\t\t\t// Consume all children nodes.\n\t\t\tfor ( const value of ModelRange._createIn( data.item ) ) {\n\t\t\t\tconversionApi.consumable.consume( value.item, evt.name );\n\t\t\t}\n\n\t\t\tconst addHighlightCallback = viewElement.getCustomProperty( 'addHighlight' ) as AddHighlightCallback;\n\n\t\t\taddHighlightCallback( viewElement, descriptor, conversionApi.writer );\n\n\t\t\tconversionApi.mapper.bindElementToMarker( viewElement, data.markerName );\n\t\t}\n\t};\n}\n\n/**\n * Function factory that creates a converter which converts the removing model marker to the view.\n *\n * Both text nodes and elements are handled by this converter but they are handled a bit differently.\n *\n * Text nodes are unwrapped using the {@link module:engine/view/attributeelement~AttributeElement attribute element} created from the\n * provided highlight descriptor. See {link module:engine/conversion/downcasthelpers~HighlightDescriptor}.\n *\n * For elements, the converter checks if an element has the `removeHighlight` function stored as a\n * {@link module:engine/view/element~Element#_setCustomProperty custom property}. If so, it uses it to remove the highlight.\n * In such case, the children of that element will not be converted.\n *\n * When `removeHighlight` is not present, the element is not converted in any special way.\n * The converter will proceed to convert the element's child nodes instead.\n *\n * If the highlight descriptor does not provide the `priority` property, `10` will be used.\n *\n * If the highlight descriptor does not provide the `id` property, the name of the marker will be used.\n *\n * This converter unbinds elements from the marker name.\n */\nfunction removeHighlight( highlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: {\n\t\t\tmarkerName: string;\n\t\t\tmarkerRange: ModelRange;\n\t\t},\n\t\tconversionApi: DowncastConversionApi\n\t): void => {\n\t\t// This conversion makes sense only for non-collapsed range.\n\t\tif ( data.markerRange.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst descriptor = prepareDescriptor( highlightDescriptor, data, conversionApi );\n\n\t\tif ( !descriptor ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// View element that will be used to unwrap `AttributeElement`s.\n\t\tconst viewHighlightElement = createViewElementFromHighlightDescriptor( conversionApi.writer, descriptor );\n\n\t\t// Get all elements bound with given marker name.\n\t\tconst elements = conversionApi.mapper.markerNameToElements( data.markerName );\n\n\t\tif ( !elements ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const element of elements ) {\n\t\t\tconversionApi.mapper.unbindElementFromMarkerName( element, data.markerName );\n\n\t\t\tif ( element.is( 'attributeElement' ) ) {\n\t\t\t\tconversionApi.writer.unwrap( conversionApi.writer.createRangeOn( element ), viewHighlightElement );\n\t\t\t} else {\n\t\t\t\t// if element.is( 'containerElement' ).\n\t\t\t\tconst removeHighlightCallback = element.getCustomProperty( 'removeHighlight' ) as RemoveHighlightCallback;\n\n\t\t\t\tremoveHighlightCallback( element, descriptor.id!, conversionApi.writer );\n\t\t\t}\n\t\t}\n\n\t\tconversionApi.writer.clearClonedElementsGroup( data.markerName );\n\n\t\tevt.stop();\n\t};\n}\n\n/**\n * Model element to view element conversion helper.\n *\n * See {@link ~DowncastHelpers#elementToElement `.elementToElement()` downcast helper} for examples and config params description.\n *\n * @param config Conversion configuration.\n * @param config.model The description or a name of the model element to convert.\n * @param config.model.attributes List of attributes triggering element reconversion.\n * @param config.model.children Should reconvert element if the list of model child nodes changed.\n * @returns Conversion helper.\n */\nfunction downcastElementToElement( config: {\n\tmodel: string | {\n\t\tname: string;\n\t\tattributes?: string | Array<string>;\n\t\tchildren?: boolean;\n\t};\n\tview: ElementDefinition | ElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconst model = normalizeModelElementConfig( config.model );\n\tconst view = normalizeToElementConfig( config.view, 'container' );\n\n\t// Trigger reconversion on children list change if element is a subject to any reconversion.\n\t// This is required to be able to trigger Differ#refreshItem() on a direct child of the reconverted element.\n\tif ( model.attributes.length ) {\n\t\tmodel.children = true;\n\t}\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastInsertEvent<ModelElement>>(\n\t\t\t`insert:${ model.name }`,\n\t\t\tinsertElement( view, createConsumer( model ) ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\n\t\tif ( model.children || model.attributes.length ) {\n\t\t\tdispatcher.on<DowncastReduceChangesEvent>( 'reduceChanges', createChangeReducer( model ), { priority: 'low' } );\n\t\t}\n\t};\n}\n\n/**\n * Model element to view structure conversion helper.\n *\n * See {@link ~DowncastHelpers#elementToStructure `.elementToStructure()` downcast helper} for examples and config params description.\n *\n * @param config Conversion configuration.\n * @returns Conversion helper.\n */\nfunction downcastElementToStructure(\n\tconfig: {\n\t\tmodel: string | {\n\t\t\tname: string;\n\t\t\tattributes?: string | Array<string>;\n\t\t};\n\t\tview: StructureCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t}\n) {\n\tconst model = normalizeModelElementConfig( config.model );\n\tconst view = normalizeToElementConfig( config.view, 'container' );\n\n\t// Trigger reconversion on children list change because it always needs to use slots to put children in proper places.\n\t// This is required to be able to trigger Differ#refreshItem() on a direct child of the reconverted element.\n\tmodel.children = true;\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tif ( dispatcher._conversionApi.schema.checkChild( model.name, '$text' ) ) {\n\t\t\t/**\n\t\t\t * This error occurs when a {@link module:engine/model/element~Element model element} is downcasted\n\t\t\t * via {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure} helper but the element was\n\t\t\t * allowed to host `$text` by the {@link module:engine/model/schema~Schema model schema}.\n\t\t\t *\n\t\t\t * For instance, this may be the result of `myElement` allowing the content of\n\t\t\t * {@glink framework/deep-dive/schema#generic-items `$block`} in its schema definition:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * // Element definition in schema.\n\t\t\t * schema.register( 'myElement', {\n\t\t\t * \tallowContentOf: '$block',\n\t\t\t *\n\t\t\t * \t// ...\n\t\t\t * } );\n\t\t\t *\n\t\t\t * // ...\n\t\t\t *\n\t\t\t * // Conversion of myElement with the use of elementToStructure().\n\t\t\t * editor.conversion.for( 'downcast' ).elementToStructure( {\n\t\t\t * \tmodel: 'myElement',\n\t\t\t * \tview: ( modelElement, { writer } ) => {\n\t\t\t * \t\t// ...\n\t\t\t * \t}\n\t\t\t * } );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * In such case, {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`} helper\n\t\t\t * can be used instead to get around this problem:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * editor.conversion.for( 'downcast' ).elementToElement( {\n\t\t\t * \tmodel: 'myElement',\n\t\t\t * \tview: ( modelElement, { writer } ) => {\n\t\t\t * \t\t// ...\n\t\t\t * \t}\n\t\t\t * } );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * @error conversion-element-to-structure-disallowed-text\n\t\t\t * @param {String} elementName The name of the element the structure is to be created for.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-element-to-structure-disallowed-text', dispatcher, { elementName: model.name } );\n\t\t}\n\n\t\tdispatcher.on<DowncastInsertEvent<ModelElement>>(\n\t\t\t`insert:${ model.name }`,\n\t\t\tinsertStructure( view, createConsumer( model ) ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\n\t\tdispatcher.on<DowncastReduceChangesEvent>( 'reduceChanges', createChangeReducer( model ), { priority: 'low' } );\n\t};\n}\n\n/**\n * Model attribute to view element conversion helper.\n *\n * See {@link ~DowncastHelpers#attributeToElement `.attributeToElement()` downcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.model The key of the attribute to convert from or a `{ key, values }` object. `values` is an array\n * of `String`s with possible values if the model attribute is an enumerable.\n * @param config.view A view element definition or a function that takes the model attribute value and\n * {@link module:engine/view/downcastwriter~DowncastWriter view downcast writer} as parameters and returns a view attribute element.\n * If `config.model.values` is given, `config.view` should be an object assigning values from `config.model.values` to view element\n * definitions or functions.\n * @param config.converterPriority Converter priority.\n * @returns Conversion helper.\n */\nfunction downcastAttributeToElement( config: {\n\tmodel: string | {\n\t\tkey: string;\n\t\tname?: string;\n\t\tvalues?: Array<string>;\n\t};\n\tview: ElementDefinition | AttributeElementCreatorFunction | Record<string, ElementDefinition | AttributeElementCreatorFunction>;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tlet model = config.model;\n\n\tif ( typeof model == 'string' ) {\n\t\tmodel = { key: model };\n\t}\n\n\tlet eventName = `attribute:${ model.key }` as const;\n\n\tif ( model.name ) {\n\t\teventName += ':' + model.name;\n\t}\n\n\tif ( model.values ) {\n\t\tfor ( const modelValue of model.values ) {\n\t\t\t( config.view as any )[ modelValue ] = normalizeToElementConfig( ( config.view as any )[ modelValue ], 'attribute' );\n\t\t}\n\t} else {\n\t\tconfig.view = normalizeToElementConfig( config.view as any, 'attribute' );\n\t}\n\n\tconst elementCreator = getFromAttributeCreator<AttributeElementCreatorFunction>( config );\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAttributeEvent>(\n\t\t\teventName,\n\t\t\twrap( elementCreator ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n/**\n * Model attribute to view attribute conversion helper.\n *\n * See {@link ~DowncastHelpers#attributeToAttribute `.attributeToAttribute()` downcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.model The key of the attribute to convert from or a `{ key, values, [ name ] }` object describing\n * the attribute key, possible values and, optionally, an element name to convert from.\n * @param config.view A view attribute key, or a `{ key, value }` object or a function that takes the model attribute value and returns\n * a `{ key, value }` object.\n * If `key` is `'class'`, `value` can be a `String` or an array of `String`s. If `key` is `'style'`, `value` is an object with\n * key-value pairs. In other cases, `value` is a `String`.\n * If `config.model.values` is set, `config.view` should be an object assigning values from `config.model.values` to\n * `{ key, value }` objects or a functions.\n * @param config.converterPriority Converter priority.\n * @returns Conversion helper.\n */\nfunction downcastAttributeToAttribute( config: {\n\tmodel: string | {\n\t\tkey: string;\n\t\tname?: string;\n\t\tvalues?: Array<string>;\n\t};\n\tview: string | AttributeDescriptor | AttributeCreatorFunction | Record<string, AttributeDescriptor | AttributeCreatorFunction>;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tlet model = config.model;\n\n\tif ( typeof model == 'string' ) {\n\t\tmodel = { key: model };\n\t}\n\n\tlet eventName = `attribute:${ model.key }` as const;\n\n\tif ( model.name ) {\n\t\teventName += ':' + model.name;\n\t}\n\n\tif ( model.values ) {\n\t\tfor ( const modelValue of model.values ) {\n\t\t\t( config.view as any )[ modelValue ] = normalizeToAttributeConfig( ( config.view as any )[ modelValue ] );\n\t\t}\n\t} else {\n\t\tconfig.view = normalizeToAttributeConfig( config.view );\n\t}\n\n\tconst elementCreator = getFromAttributeCreator<AttributeCreatorFunction>( config );\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAttributeEvent<ModelElement>>(\n\t\t\teventName,\n\t\t\tchangeAttribute( elementCreator ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n/**\n * Model marker to view element conversion helper.\n *\n * See {@link ~DowncastHelpers#markerToElement `.markerToElement()` downcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.model The name of the model marker (or model marker group) to convert.\n * @param config.view A view element definition or a function that takes the model marker data as a parameter and returns a view UI element.\n * @param config.converterPriority Converter priority.\n * @returns Conversion helper.\n */\nfunction downcastMarkerToElement( config: {\n\tmodel: string;\n\tview: ElementDefinition | MarkerElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconst view = normalizeToElementConfig( config.view, 'ui' );\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ config.model }`,\n\t\t\tinsertUIElement( view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastRemoveMarkerEvent>(\n\t\t\t`removeMarker:${ config.model }`,\n\t\t\tremoveUIElement(),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n/**\n * Model marker to view data conversion helper.\n *\n * See {@link ~DowncastHelpers#markerToData `markerToData()` downcast helper} to learn more.\n *\n * @returns Conversion helper.\n */\nfunction downcastMarkerToData( config: {\n\tmodel: string;\n\tview?: MarkerDataCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tconst group = config.model;\n\tlet view = config.view;\n\n\t// Default conversion.\n\tif ( !view ) {\n\t\tview = markerName => ( {\n\t\t\tgroup,\n\t\t\tname: markerName.substr( config.model.length + 1 )\n\t\t} );\n\t}\n\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ group }`,\n\t\t\tinsertMarkerData( view! ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastRemoveMarkerEvent>(\n\t\t\t`removeMarker:${ group }`,\n\t\t\tremoveMarkerData( view! ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n/**\n * Model marker to highlight conversion helper.\n *\n * See {@link ~DowncastHelpers#markerToElement `.markerToElement()` downcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.model The name of the model marker (or model marker group) to convert.\n * @param config.view A highlight descriptor that will be used for highlighting or a function that takes\n * the model marker data as a parameter and returns a highlight descriptor.\n * @param config.converterPriority Converter priority.\n * @returns Conversion helper.\n */\nfunction downcastMarkerToHighlight( config: {\n\tmodel: string;\n\tview: HighlightDescriptor | HighlightDescriptorCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ config.model }`,\n\t\t\thighlightText( config.view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastAddMarkerEvent>(\n\t\t\t`addMarker:${ config.model }`,\n\t\t\thighlightElement( config.view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<DowncastRemoveMarkerEvent>(\n\t\t\t`removeMarker:${ config.model }`,\n\t\t\tremoveHighlight( config.view ),\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t};\n}\n\n/**\n * Takes `config.model`, and converts it to an object with normalized structure.\n *\n * @param model Model configuration or element name.\n */\nfunction normalizeModelElementConfig( model: string | {\n\tname: string;\n\tattributes?: string | Array<string>;\n\tchildren?: boolean;\n} ): NormalizedModelElementConfig {\n\tif ( typeof model == 'string' ) {\n\t\tmodel = { name: model };\n\t}\n\n\t// List of attributes that should trigger reconversion.\n\tif ( !model.attributes ) {\n\t\tmodel.attributes = [];\n\t} else if ( !Array.isArray( model.attributes ) ) {\n\t\tmodel.attributes = [ model.attributes ];\n\t}\n\n\t// Whether a children insertion/deletion should trigger reconversion.\n\tmodel.children = !!model.children;\n\n\treturn model as any;\n}\n\ninterface NormalizedModelElementConfig {\n\tname: string;\n\tattributes: Array<string>;\n\tchildren: boolean;\n}\n\n/**\n * Takes `config.view`, and if it is an {@link module:engine/view/elementdefinition~ElementDefinition}, converts it\n * to a function (because lower level converters accept only element creator functions).\n *\n * @param view View configuration.\n * @param viewElementType View element type to create.\n * @returns Element creator function to use in lower level converters.\n */\nfunction normalizeToElementConfig<T extends Function>(\n\tview: ElementDefinition | T,\n\tviewElementType: 'container' | 'attribute' | 'ui'\n): T {\n\tif ( typeof view == 'function' ) {\n\t\t// If `view` is already a function, don't do anything.\n\t\treturn view as any;\n\t}\n\n\treturn ( ( modelData: unknown, conversionApi: DowncastConversionApi ) =>\n\t\tcreateViewElementFromDefinition( view, conversionApi, viewElementType ) ) as any;\n}\n\n/**\n * Creates a view element instance from the provided {@link module:engine/view/elementdefinition~ElementDefinition} and class.\n */\nfunction createViewElementFromDefinition(\n\tviewElementDefinition: ElementDefinition,\n\tconversionApi: DowncastConversionApi,\n\tviewElementType: 'container' | 'attribute' | 'ui'\n): ViewElement {\n\tif ( typeof viewElementDefinition == 'string' ) {\n\t\t// If `viewElementDefinition` is given as a `String`, normalize it to an object with `name` property.\n\t\tviewElementDefinition = { name: viewElementDefinition };\n\t}\n\n\tlet element: ViewElement;\n\tconst viewWriter = conversionApi.writer;\n\tconst attributes = Object.assign( {}, viewElementDefinition.attributes );\n\n\tif ( viewElementType == 'container' ) {\n\t\telement = viewWriter.createContainerElement( viewElementDefinition.name, attributes );\n\t} else if ( viewElementType == 'attribute' ) {\n\t\tconst options = {\n\t\t\tpriority: viewElementDefinition.priority || ViewAttributeElement.DEFAULT_PRIORITY\n\t\t};\n\n\t\telement = viewWriter.createAttributeElement( viewElementDefinition.name, attributes, options );\n\t} else {\n\t\t// 'ui'.\n\t\telement = viewWriter.createUIElement( viewElementDefinition.name, attributes );\n\t}\n\n\tif ( viewElementDefinition.styles ) {\n\t\tconst keys = Object.keys( viewElementDefinition.styles );\n\n\t\tfor ( const key of keys ) {\n\t\t\tviewWriter.setStyle( key, viewElementDefinition.styles[ key ], element );\n\t\t}\n\t}\n\n\tif ( viewElementDefinition.classes ) {\n\t\tconst classes = viewElementDefinition.classes;\n\n\t\tif ( typeof classes == 'string' ) {\n\t\t\tviewWriter.addClass( classes, element );\n\t\t} else {\n\t\t\tfor ( const className of classes ) {\n\t\t\t\tviewWriter.addClass( className, element );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn element;\n}\n\nfunction getFromAttributeCreator<T extends AttributeElementCreatorFunction | AttributeCreatorFunction>( config: any ): T {\n\tif ( config.model.values ) {\n\t\treturn ( ( modelAttributeValue: any, conversionApi: DowncastConversionApi, data: any ) => {\n\t\t\tconst view = config.view[ modelAttributeValue ];\n\n\t\t\tif ( view ) {\n\t\t\t\treturn view( modelAttributeValue, conversionApi, data );\n\t\t\t}\n\n\t\t\treturn null;\n\t\t} ) as any;\n\t} else {\n\t\treturn config.view;\n\t}\n}\n\n/**\n * Takes the configuration, adds default parameters if they do not exist and normalizes other parameters to be used in downcast converters\n * for generating a view attribute.\n *\n * @param view View configuration.\n */\nfunction normalizeToAttributeConfig( view: any ): AttributeCreatorFunction {\n\tif ( typeof view == 'string' ) {\n\t\treturn modelAttributeValue => ( { key: view, value: modelAttributeValue as string } );\n\t} else if ( typeof view == 'object' ) {\n\t\t// { key, value, ... }\n\t\tif ( view.value ) {\n\t\t\treturn () => view;\n\t\t}\n\t\t// { key, ... }\n\t\telse {\n\t\t\treturn modelAttributeValue => ( { key: view.key, value: modelAttributeValue as string } );\n\t\t}\n\t} else {\n\t\t// function.\n\t\treturn view;\n\t}\n}\n\n/**\n * Helper function for `highlight`. Prepares the actual descriptor object using value passed to the converter.\n */\nfunction prepareDescriptor(\n\thighlightDescriptor: HighlightDescriptor | HighlightDescriptorCreatorFunction,\n\tdata: {\n\t\tmarkerName: string;\n\t\tmarkerRange: ModelRange;\n\t},\n\tconversionApi: DowncastConversionApi\n): HighlightDescriptor | null {\n\t// If passed descriptor is a creator function, call it. If not, just use passed value.\n\tconst descriptor = typeof highlightDescriptor == 'function' ?\n\t\thighlightDescriptor( data, conversionApi ) :\n\t\thighlightDescriptor;\n\n\tif ( !descriptor ) {\n\t\treturn null;\n\t}\n\n\t// Apply default descriptor priority.\n\tif ( !descriptor.priority ) {\n\t\tdescriptor.priority = 10;\n\t}\n\n\t// Default descriptor id is marker name.\n\tif ( !descriptor.id ) {\n\t\tdescriptor.id = data.markerName;\n\t}\n\n\treturn descriptor;\n}\n\n/**\n * Creates a function that checks a single differ diff item whether it should trigger reconversion.\n *\n * @param model A normalized `config.model` converter configuration.\n * @param model.name The name of element.\n * @param model.attributes The list of attribute names that should trigger reconversion.\n * @param model.children Whether the child list change should trigger reconversion.\n */\nfunction createChangeReducerCallback( model: NormalizedModelElementConfig ) {\n\treturn ( node: ModelNode, change: DiffItem | DiffItemReinsert ): boolean => {\n\t\tif ( !node.is( 'element', model.name ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( change.type == 'attribute' ) {\n\t\t\tif ( model.attributes.includes( change.attributeKey ) ) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t} else {\n\t\t\t/* istanbul ignore else: This is always true because otherwise it would not register a reducer callback. -- @preserve */\n\t\t\tif ( model.children ) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t};\n}\n\n/**\n * Creates a `reduceChanges` event handler for reconversion.\n *\n * @param model A normalized `config.model` converter configuration.\n * @param model.name The name of element.\n * @param model.attributes The list of attribute names that should trigger reconversion.\n * @param model.children Whether the child list change should trigger reconversion.\n */\nfunction createChangeReducer( model: NormalizedModelElementConfig ) {\n\tconst shouldReplace = createChangeReducerCallback( model );\n\n\treturn (\n\t\tevt: unknown,\n\t\tdata: { changes: Iterable<DiffItem | DiffItemReinsert>; reconvertedElements?: Set<ModelNode> }\n\t) => {\n\t\tconst reducedChanges: Array<DiffItem | DiffItemReinsert> = [];\n\n\t\tif ( !data.reconvertedElements ) {\n\t\t\tdata.reconvertedElements = new Set();\n\t\t}\n\n\t\tfor ( const change of data.changes ) {\n\t\t\t// For attribute use node affected by the change.\n\t\t\t// For insert or remove use parent element because we need to check if it's added/removed child.\n\t\t\tconst node = change.type == 'attribute' ? change.range.start.nodeAfter : change.position.parent as ModelNode;\n\n\t\t\tif ( !node || !shouldReplace( node, change ) ) {\n\t\t\t\treducedChanges.push( change );\n\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If it's already marked for reconversion, so skip this change, otherwise add the diff items.\n\t\t\tif ( !data.reconvertedElements.has( node ) ) {\n\t\t\t\tdata.reconvertedElements.add( node );\n\n\t\t\t\tconst position = ModelPosition._createBefore( node );\n\t\t\t\tlet changeIndex = reducedChanges.length;\n\n\t\t\t\t// We need to insert remove+reinsert before any other change on and inside the re-converted element.\n\t\t\t\t// This is important because otherwise we would remove element that had already been modified by the previous change.\n\t\t\t\t// Note that there could be some element removed before the re-converted element, so we must not break this behavior.\n\t\t\t\tfor ( let i = reducedChanges.length - 1; i >= 0; i-- ) {\n\t\t\t\t\tconst change = reducedChanges[ i ];\n\t\t\t\t\tconst changePosition = change.type == 'attribute' ? change.range.start : change.position;\n\t\t\t\t\tconst positionRelation = changePosition.compareWith( position );\n\n\t\t\t\t\tif ( positionRelation == 'before' || change.type == 'remove' && positionRelation == 'same' ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\n\t\t\t\t\tchangeIndex = i;\n\t\t\t\t}\n\n\t\t\t\treducedChanges.splice( changeIndex, 0, {\n\t\t\t\t\ttype: 'remove',\n\t\t\t\t\tname: ( node as ModelElement ).name,\n\t\t\t\t\tposition,\n\t\t\t\t\tlength: 1\n\t\t\t\t} as any, {\n\t\t\t\t\ttype: 'reinsert',\n\t\t\t\t\tname: ( node as ModelElement ).name,\n\t\t\t\t\tposition,\n\t\t\t\t\tlength: 1\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\n\t\tdata.changes = reducedChanges;\n\t};\n}\n\n/**\n * Creates a function that checks if an element and its watched attributes can be consumed and consumes them.\n *\n * @param model A normalized `config.model` converter configuration.\n * @param model.name The name of element.\n * @param model.attributes The list of attribute names that should trigger reconversion.\n * @param model.children Whether the child list change should trigger reconversion.\n */\nfunction createConsumer( model: NormalizedModelElementConfig ): ConsumerFunction {\n\treturn ( node, consumable, options = {} ) => {\n\t\tconst events = [ 'insert' ];\n\n\t\t// Collect all set attributes that are triggering conversion.\n\t\tfor ( const attributeName of model.attributes ) {\n\t\t\tif ( node.hasAttribute( attributeName ) ) {\n\t\t\t\tevents.push( `attribute:${ attributeName }` );\n\t\t\t}\n\t\t}\n\n\t\tif ( !events.every( event => consumable.test( node, event ) ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !options.preflight ) {\n\t\t\tevents.forEach( event => consumable.consume( node, event ) );\n\t\t}\n\n\t\treturn true;\n\t};\n}\n\n/**\n * Creates a function that create view slots.\n *\n * @returns Function exposed by writer as createSlot().\n */\nfunction createSlotFactory( element: ModelElement, slotsMap: Map<ViewElement, Array<ModelNode>>, conversionApi: DowncastConversionApi ) {\n\treturn ( writer: DowncastWriter, modeOrFilter: string | SlotFilter ) => {\n\t\tconst slot = writer.createContainerElement( '$slot' );\n\n\t\tlet children: Array<ModelNode> | null = null;\n\n\t\tif ( modeOrFilter === 'children' ) {\n\t\t\tchildren = Array.from( element.getChildren() );\n\t\t} else if ( typeof modeOrFilter == 'function' ) {\n\t\t\tchildren = Array.from( element.getChildren() ).filter( element => modeOrFilter( element ) );\n\t\t} else {\n\t\t\t/**\n\t\t\t * Unknown slot mode was provided to `writer.createSlot()` in downcast converter.\n\t\t\t *\n\t\t\t * @error conversion-slot-mode-unknown\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-slot-mode-unknown', conversionApi.dispatcher, { modeOrFilter } );\n\t\t}\n\n\t\tslotsMap.set( slot, children );\n\n\t\treturn slot;\n\t};\n}\n\n/**\n * Checks if all children are covered by slots and there is no child that landed in multiple slots.\n */\nfunction validateSlotsChildren(\n\telement: ModelElement,\n\tslotsMap: Map<ViewElement, Array<ModelNode>>,\n\tconversionApi: DowncastConversionApi\n) {\n\tconst childrenInSlots = Array.from( slotsMap.values() ).flat();\n\tconst uniqueChildrenInSlots = new Set( childrenInSlots );\n\n\tif ( uniqueChildrenInSlots.size != childrenInSlots.length ) {\n\t\t/**\n\t\t * Filters provided to `writer.createSlot()` overlap (at least two filters accept the same child element).\n\t\t *\n\t\t * @error conversion-slot-filter-overlap\n\t\t * @param {module:engine/model/element~Element} element The element of which children would not be properly\n\t\t * allocated to multiple slots.\n\t\t */\n\t\tthrow new CKEditorError( 'conversion-slot-filter-overlap', conversionApi.dispatcher, { element } );\n\t}\n\n\tif ( uniqueChildrenInSlots.size != element.childCount ) {\n\t\t/**\n\t\t * Filters provided to `writer.createSlot()` are incomplete and exclude at least one children element (one of\n\t\t * the children elements would not be assigned to any of the slots).\n\t\t *\n\t\t * @error conversion-slot-filter-incomplete\n\t\t * @param {module:engine/model/element~Element} element The element of which children would not be properly\n\t\t * allocated to multiple slots.\n\t\t */\n\t\tthrow new CKEditorError( 'conversion-slot-filter-incomplete', conversionApi.dispatcher, { element } );\n\t}\n}\n\n/**\n * Fill slots with appropriate view elements.\n */\nfunction fillSlots(\n\tviewElement: ViewElement,\n\tslotsMap: Map<ViewElement, Array<ModelNode>>,\n\tconversionApi: DowncastConversionApi,\n\toptions: { reconversion?: boolean }\n): void {\n\t// Set temporary position mapping to redirect child view elements into a proper slots.\n\tconversionApi.mapper.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', toViewPositionMapping, { priority: 'highest' } );\n\n\tlet currentSlot: ViewElement | null = null;\n\tlet currentSlotNodes: Array<ModelNode> | null = null;\n\n\t// Fill slots with nested view nodes.\n\tfor ( [ currentSlot, currentSlotNodes ] of slotsMap ) {\n\t\treinsertOrConvertNodes( viewElement, currentSlotNodes, conversionApi, options );\n\n\t\tconversionApi.writer.move(\n\t\t\tconversionApi.writer.createRangeIn( currentSlot ),\n\t\t\tconversionApi.writer.createPositionBefore( currentSlot )\n\t\t);\n\t\tconversionApi.writer.remove( currentSlot );\n\t}\n\n\tconversionApi.mapper.off( 'modelToViewPosition', toViewPositionMapping );\n\n\tfunction toViewPositionMapping( evt: unknown, data: {\n\t\tmapper: Mapper;\n\t\tmodelPosition: ModelPosition;\n\t\tviewPosition?: ViewPosition;\n\t\tisPhantom?: boolean;\n\t} ) {\n\t\tconst element = data.modelPosition.nodeAfter!;\n\n\t\t// Find the proper offset within the slot.\n\t\tconst index = currentSlotNodes!.indexOf( element );\n\n\t\tif ( index < 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdata.viewPosition = data.mapper.findPositionIn( currentSlot!, index );\n\t}\n}\n\n/**\n * Inserts view representation of `nodes` into the `viewElement` either by bringing back just removed view nodes\n * or by triggering conversion for them.\n */\nfunction reinsertOrConvertNodes(\n\tviewElement: ViewElement,\n\tmodelNodes: Iterable<ModelNode>,\n\tconversionApi: DowncastConversionApi,\n\toptions: { reconversion?: boolean }\n) {\n\t// Fill with nested view nodes.\n\tfor ( const modelChildNode of modelNodes ) {\n\t\t// Try reinserting the view node for the specified model node...\n\t\tif ( !reinsertNode( viewElement.root, modelChildNode, conversionApi, options ) ) {\n\t\t\t// ...or else convert the model element to the view.\n\t\t\tconversionApi.convertItem( modelChildNode );\n\t\t}\n\t}\n}\n\n/**\n * Checks if the view for the given model element could be reused and reinserts it to the view.\n *\n * @returns `false` if view element can't be reused.\n */\nfunction reinsertNode(\n\tviewRoot: ViewElement | ViewDocumentFragment,\n\tmodelNode: ModelNode,\n\tconversionApi: DowncastConversionApi,\n\toptions: { reconversion?: boolean }\n): boolean {\n\tconst { writer, mapper } = conversionApi;\n\n\t// Don't reinsert if this is not a reconversion...\n\tif ( !options.reconversion ) {\n\t\treturn false;\n\t}\n\n\tconst viewChildNode = mapper.toViewElement( modelNode as ModelElement );\n\n\t// ...or there is no view to reinsert or it was already inserted to the view structure...\n\tif ( !viewChildNode || viewChildNode.root == viewRoot ) {\n\t\treturn false;\n\t}\n\n\t// ...or it was strictly marked as not to be reused.\n\tif ( !conversionApi.canReuseView( viewChildNode ) ) {\n\t\treturn false;\n\t}\n\n\t// Otherwise reinsert the view node.\n\twriter.move(\n\t\twriter.createRangeOn( viewChildNode ),\n\t\tmapper.toViewPosition( ModelPosition._createBefore( modelNode ) )\n\t);\n\n\treturn true;\n}\n\n/**\n * The default consumer for insert events.\n *\n * @param item Model item.\n * @param consumable The model consumable.\n * @param options.preflight Whether should consume or just check if can be consumed.\n */\nfunction defaultConsumer(\n\titem: ModelItem,\n\tconsumable: ModelConsumable,\n\t{ preflight }: { preflight?: boolean } = {}\n): boolean | null {\n\tif ( preflight ) {\n\t\treturn consumable.test( item, 'insert' );\n\t} else {\n\t\treturn consumable.consume( item, 'insert' );\n\t}\n}\n\n/**\n * An object describing how the marker highlight should be represented in the view.\n *\n * Each text node contained in a highlighted range will be wrapped in a `<span>`\n * {@link module:engine/view/attributeelement~AttributeElement view attribute element} with CSS class(es), attributes and a priority\n * described by this object.\n *\n * Additionally, each {@link module:engine/view/containerelement~ContainerElement container element} can handle displaying the highlight\n * separately by providing the `addHighlight` and `removeHighlight` custom properties. In this case:\n *\n *  * The `HighlightDescriptor` object is passed to the `addHighlight` function upon conversion and should be used to apply the highlight to\n *  the element.\n *  * The descriptor `id` is passed to the `removeHighlight` function upon conversion and should be used to remove the highlight with the\n *  given ID from the element.\n */\nexport interface HighlightDescriptor {\n\n\t/**\n\t * A CSS class or an array of classes to set. If the descriptor is used to\n\t * create an {@link module:engine/view/attributeelement~AttributeElement attribute element} over text nodes, these classes will be set\n\t * on that attribute element. If the descriptor is applied to an element, usually these classes will be set on that element, however,\n\t * this depends on how the element converts the descriptor.\n\t */\n\tclasses: string | Array<string>;\n\n\t/**\n\t * Descriptor identifier. If not provided, it defaults to the converted marker's name.\n\t */\n\tid?: string;\n\n\t/**\n\t * Descriptor priority. If not provided, it defaults to `10`. If the descriptor is used to create\n\t * an {@link module:engine/view/attributeelement~AttributeElement attribute element}, it will be that element's\n\t * {@link module:engine/view/attributeelement~AttributeElement#priority priority}. If the descriptor is applied to an element,\n\t * the priority will be used to determine which descriptor is more important.\n\t */\n\tpriority?: number;\n\n\t/**\n\t * Attributes to set. If the descriptor is used to create\n\t * an {@link module:engine/view/attributeelement~AttributeElement attribute element} over text nodes, these attributes will be set\n\t * on that attribute element. If the descriptor is applied to an element, usually these attributes will be set on that element, however,\n\t * this depends on how the element converts the descriptor.\n\t */\n\tattributes?: Record<string, string>;\n}\n\n/**\n * A filtering function used to choose model child nodes to be downcasted into the specific view\n * {@link module:engine/view/downcastwriter~DowncastWriter#createSlot \"slot\"} while executing the\n * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure `elementToStructure()`} converter.\n *\n * @callback module:engine/conversion/downcasthelpers~SlotFilter\n *\n * @param node A model node.\n * @returns Whether the provided model node should be downcasted into this slot.\n *\n * @see module:engine/view/downcastwriter~DowncastWriter#createSlot\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n * @see module:engine/conversion/downcasthelpers~insertStructure\n */\nexport type SlotFilter = ( node: ModelNode ) => boolean;\n\n/**\n * A view element creator function that takes the model element and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi\n * downcast conversion API} as parameters and returns a view container element.\n *\n * @callback module:engine/conversion/downcasthelpers~ElementCreatorFunction\n *\n * @param element The model element to be converted to the view structure.\n * @param conversionApi The conversion interface.\n * @param data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`} event).\n * @param data.item Inserted item.\n * @param data.range Range spanning over inserted item.\n * @returns The view element.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement\n * @see module:engine/conversion/downcasthelpers~insertElement\n */\nexport type ElementCreatorFunction = (\n\telement: ModelElement,\n\tconversionApi: DowncastConversionApi,\n\tdata: {\n\t\titem: ModelItem;\n\t\trange: ModelRange;\n\t}\n) => ViewElement | null;\n\n/**\n * A function that takes the model element and {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast\n * conversion API} as parameters and returns a view container element with slots for model child nodes to be converted into.\n *\n * @callback module:engine/conversion/downcasthelpers~StructureCreatorFunction\n *\n * @param element The model element to be converted to the view structure.\n * @param conversionApi The conversion interface.\n * @param data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert `insert`} event).\n * @param data.item Inserted item.\n * @param data.range Range spanning over inserted item.\n * @returns The view structure with slots for model child nodes.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#elementToStructure\n * @see module:engine/conversion/downcasthelpers~insertStructure\n */\nexport type StructureCreatorFunction = ElementCreatorFunction;\n\n/**\n * A view element creator function that takes the model attribute value and\n * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API} as parameters and returns a view\n * attribute element.\n *\n * @callback module:engine/conversion/downcasthelpers~AttributeElementCreatorFunction\n *\n * @param attributeValue The model attribute value to be converted to the view attribute element.\n * @param conversionApi The conversion interface.\n * @param data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`} event).\n * @param data.item Changed item or converted selection.\n * @param data.range Range spanning over changed item or selection range.\n * @param data.attributeKey Attribute key.\n * @param data.attributeOldValue Attribute value before the change. This is `null` when selection attribute is converted.\n * @param data.attributeNewValue New attribute value.\n * @returns The view attribute element.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement\n * @see module:engine/conversion/downcasthelpers~wrap\n */\nexport type AttributeElementCreatorFunction = (\n\tattributeValue: any,\n\tconversionApi: DowncastConversionApi,\n\tdata: {\n\t\titem: ModelItem | ModelSelection | ModelDocumentSelection;\n\t\trange: ModelRange;\n\t\tattributeKey: string;\n\t\tattributeOldValue: unknown;\n\t\tattributeNewValue: unknown;\n\t}\n) => ViewAttributeElement | null;\n\n/**\n * A function that takes the model attribute value and\n * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi downcast conversion API}\n * as parameters.\n *\n * @callback module:engine/conversion/downcasthelpers~AttributeCreatorFunction\n *\n * @param attributeValue The model attribute value to be converted to the view attribute element.\n * @param conversionApi The conversion interface.\n * @param data Additional information about the change (same as for\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute `attribute`} event).\n * @param data.item Changed item or converted selection.\n * @param data.range Range spanning over changed item or selection range.\n * @param data.attributeKey Attribute key.\n * @param data.attributeOldValue Attribute value before the change. This is `null` when selection attribute is converted.\n * @param data.attributeNewValue New attribute value.\n * @returns A `{ key, value }` object. If `key` is `'class'`, `value` can be a `String` or an\n * array of `String`s. If `key` is `'style'`, `value` is an object with key-value pairs. In other cases, `value` is a `String`.\n *\n * @see module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToAttribute\n */\nexport type AttributeCreatorFunction = (\n\tattributeValue: unknown,\n\tconversionApi: DowncastConversionApi,\n\tdata: {\n\t\titem: ModelItem;\n\t\trange: ModelRange;\n\t\tattributeKey: string;\n\t\tattributeOldValue: unknown;\n\t\tattributeNewValue: unknown;\n\t}\n) => AttributeDescriptor | null;\n\nexport type AttributeDescriptor = {\n\tkey: 'class';\n\tvalue: string | Array<string>;\n} | {\n\tkey: 'style';\n\tvalue: Record<string, string>;\n} | {\n\tkey: Exclude<string, 'class' | 'style'>;\n\tvalue: string;\n};\n\nexport type MarkerElementCreatorFunction = (\n\tdata: {\n\t\tmarkerRange: ModelRange;\n\t\tmarkerName: string;\n\t\tisOpening?: boolean;\n\t},\n\tconversionApi: DowncastConversionApi\n) => UIElement | null;\n\nexport type HighlightDescriptorCreatorFunction = (\n\tdata: {\n\t\tmarkerRange: ModelRange;\n\t\tmarkerName: string;\n\t},\n\tconversionApi: DowncastConversionApi\n) => HighlightDescriptor | null;\n\nexport type AddHighlightCallback = (\n\tviewElement: ViewElement,\n\tdescriptor: HighlightDescriptor,\n\twriter: DowncastWriter\n) => void;\n\nexport type RemoveHighlightCallback = (\n\tviewElement: ViewElement,\n\tid: string,\n\twriter: DowncastWriter\n) => void;\n\nexport type MarkerDataCreatorFunction = (\n\tmarkerName: string,\n\tconversionApi: DowncastConversionApi\n) => { name: string; group: string } | null;\n\n/**\n * A function that is expected to consume all the consumables that were used by the element creator.\n *\n * @callback module:engine/conversion/downcasthelpers~ConsumerFunction\n *\n * @param element The model element to be converted to the view structure.\n * @param consumable The `ModelConsumable` same as in\n * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi#consumable `DowncastConversionApi.consumable`}.\n * @param options.preflight Whether should consume or just check if can be consumed.\n * @returns `true` if all consumable values were available and were consumed, `false` otherwise.\n *\n * @see module:engine/conversion/downcasthelpers~insertStructure\n */\nexport type ConsumerFunction = (\n\telement: ModelElement,\n\tconsumable: ModelConsumable,\n\toptions?: { preflight?: boolean }\n) => boolean | null;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type Node from '../node';\nimport type Position from '../position';\nimport type Schema from '../schema';\nimport type Writer from '../writer';\n\n/**\n * @module engine/model/utils/autoparagraphing\n */\n\n/**\n * Fixes all empty roots.\n *\n * @internal\n * @param writer The model writer.\n * @returns `true` if any change has been applied, `false` otherwise.\n */\nexport function autoParagraphEmptyRoots( writer: Writer ): boolean {\n\tconst { schema, document } = writer.model;\n\n\tfor ( const rootName of document.getRootNames() ) {\n\t\tconst root = document.getRoot( rootName )!;\n\n\t\tif ( root.isEmpty && !schema.checkChild( root, '$text' ) ) {\n\t\t\t// If paragraph element is allowed in the root, create paragraph element.\n\t\t\tif ( schema.checkChild( root, 'paragraph' ) ) {\n\t\t\t\twriter.insertElement( 'paragraph', root );\n\n\t\t\t\t// Other roots will get fixed in the next post-fixer round. Those will be triggered\n\t\t\t\t// in the same batch no matter if this method was triggered by the post-fixing or not\n\t\t\t\t// (the above insertElement call will trigger the post-fixers).\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn false;\n}\n\n/**\n * Checks if the given node wrapped with a paragraph would be accepted by the schema in the given position.\n *\n * @internal\n * @param position The position at which to check.\n * @param nodeOrType The child node or child type to check.\n * @param schema A schema instance used for element validation.\n */\nexport function isParagraphable(\n\tposition: Position,\n\tnodeOrType: Node | string,\n\tschema: Schema\n): boolean {\n\tconst context = schema.createContext( position );\n\n\t// When paragraph is allowed in this context...\n\tif ( !schema.checkChild( context, 'paragraph' ) ) {\n\t\treturn false;\n\t}\n\n\t// And a node would be allowed in this paragraph...\n\tif ( !schema.checkChild( context.push( 'paragraph' ), nodeOrType ) ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n/**\n * Inserts a new paragraph at the given position and returns a position inside that paragraph.\n *\n * @internal\n * @param position The position where a paragraph should be inserted.\n * @param writer The model writer.\n * @returns  Position inside the created paragraph.\n */\nexport function wrapInParagraph( position: Position, writer: Writer ): Position {\n\tconst paragraph = writer.createElement( 'paragraph' );\n\n\twriter.insert( paragraph, position );\n\n\treturn writer.createPositionAt( paragraph, 0 );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport Matcher, { type ClassPatterns, type MatcherPattern, type PropertyPatterns } from '../view/matcher';\nimport ConversionHelpers from './conversionhelpers';\n\nimport type { default as UpcastDispatcher, UpcastElementEvent, UpcastConversionApi, UpcastConversionData } from './upcastdispatcher';\nimport type ModelElement from '../model/element';\nimport type ModelRange from '../model/range';\nimport type ModelPosition from '../model/position';\nimport type { ViewDocumentFragment, ViewElement, ViewText } from '../index';\nimport type Mapper from './mapper';\nimport type Model from '../model/model';\nimport type ViewSelection from '../view/selection';\nimport type ViewDocumentSelection from '../view/documentselection';\nimport { isParagraphable, wrapInParagraph } from '../model/utils/autoparagraphing';\n\nimport { priorities, type EventInfo, type PriorityString } from '@ckeditor/ckeditor5-utils';\n\nimport { cloneDeep } from 'lodash-es';\n\n/**\n * Contains the {@link module:engine/view/view view} to {@link module:engine/model/model model} converters for\n * {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher}.\n *\n * @module engine/conversion/upcasthelpers\n */\n\n/**\n * Upcast conversion helper functions.\n *\n * Learn more about {@glink framework/deep-dive/conversion/upcast upcast helpers}.\n *\n * @extends module:engine/conversion/conversionhelpers~ConversionHelpers\n */\nexport default class UpcastHelpers extends ConversionHelpers<UpcastDispatcher> {\n\t/**\n\t * View element to model element conversion helper.\n\t *\n\t * This conversion results in creating a model element. For example,\n\t * view `<p>Foo</p>` becomes `<paragraph>Foo</paragraph>` in the model.\n\t *\n\t * Keep in mind that the element will be inserted only if it is allowed\n\t * by {@link module:engine/model/schema~Schema schema} configuration.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'upcast' ).elementToElement( {\n\t * \tview: 'p',\n\t * \tmodel: 'paragraph'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToElement( {\n\t * \tview: 'p',\n\t * \tmodel: 'paragraph',\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToElement( {\n\t * \tview: {\n\t * \t\tname: 'p',\n\t * \t\tclasses: 'fancy'\n\t * \t},\n\t * \tmodel: 'fancyParagraph'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToElement( {\n\t * \tview: {\n\t * \t\tname: 'p',\n\t * \t\tclasses: 'heading'\n\t * \t},\n\t * \tmodel: ( viewElement, conversionApi ) => {\n\t * \t\tconst modelWriter = conversionApi.writer;\n\t *\n\t * \t\treturn modelWriter.createElement( 'heading', { level: viewElement.getAttribute( 'data-level' ) } );\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.view Pattern matching all view elements which should be converted. If not set, the converter\n\t * will fire for every view element.\n\t * @param config.model Name of the model element, a model element instance or a function that takes a view element\n\t * and {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API}\n\t * and returns a model element. The model element will be inserted in the model.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic elementToElement( config: {\n\t\tview: MatcherPattern;\n\t\tmodel: string | ElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastElementToElement( config ) );\n\t}\n\n\t/**\n\t * View element to model attribute conversion helper.\n\t *\n\t * This conversion results in setting an attribute on a model node. For example, view `<strong>Foo</strong>` becomes\n\t * `Foo` {@link module:engine/model/text~Text model text node} with `bold` attribute set to `true`.\n\t *\n\t * This helper is meant to set a model attribute on all the elements that are inside the converted element:\n\t *\n\t * ```\n\t * <strong>Foo</strong>   -->   <strong><p>Foo</p></strong>   -->   <paragraph><$text bold=\"true\">Foo</$text></paragraph>\n\t * ```\n\t *\n\t * Above is a sample of HTML code, that goes through autoparagraphing (first step) and then is converted (second step).\n\t * Even though `<strong>` is over `<p>` element, `bold=\"true\"` was added to the text. See\n\t * {@link module:engine/conversion/upcasthelpers~UpcastHelpers#attributeToAttribute} for comparison.\n\t *\n\t * Keep in mind that the attribute will be set only if it is allowed by {@link module:engine/model/schema~Schema schema} configuration.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'upcast' ).elementToAttribute( {\n\t * \tview: 'strong',\n\t * \tmodel: 'bold'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToAttribute( {\n\t * \tview: 'strong',\n\t * \tmodel: 'bold',\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToAttribute( {\n\t * \tview: {\n\t * \t\tname: 'span',\n\t * \t\tclasses: 'bold'\n\t * \t},\n\t * \tmodel: 'bold'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToAttribute( {\n\t * \tview: {\n\t * \t\tname: 'span',\n\t * \t\tclasses: [ 'styled', 'styled-dark' ]\n\t * \t},\n\t * \tmodel: {\n\t * \t\tkey: 'styled',\n\t * \t\tvalue: 'dark'\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToAttribute( {\n\t * \tview: {\n\t * \t\tname: 'span',\n\t * \t\tstyles: {\n\t * \t\t\t'font-size': /[\\s\\S]+/\n\t * \t\t}\n\t * \t},\n\t * \tmodel: {\n\t * \t\tkey: 'fontSize',\n\t * \t\tvalue: ( viewElement, conversionApi ) => {\n\t * \t\t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t * \t\t\tconst value = fontSize.substr( 0, fontSize.length - 2 );\n\t *\n\t * \t\t\tif ( value <= 10 ) {\n\t * \t\t\t\treturn 'small';\n\t * \t\t\t} else if ( value > 12 ) {\n\t * \t\t\t\treturn 'big';\n\t * \t\t\t}\n\t *\n\t * \t\t\treturn null;\n\t * \t\t}\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.view Pattern matching all view elements which should be converted.\n\t * @param config.model Model attribute key or an object with `key` and `value` properties, describing\n\t * the model attribute. `value` property may be set as a function that takes a view element and\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API} and returns the value.\n\t * If `String` is given, the model attribute value will be set to `true`.\n\t * @param config.converterPriority Converter priority. Defaults to `low`.\n\t */\n\tpublic elementToAttribute( config: {\n\t\tview: MatcherPattern;\n\t\tmodel: string | {\n\t\t\tkey: string;\n\t\t\tvalue?: unknown;\n\t\t};\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastElementToAttribute( config ) );\n\t}\n\n\t/**\n\t * View attribute to model attribute conversion helper.\n\t *\n\t * This conversion results in setting an attribute on a model node. For example, view `<img src=\"foo.jpg\"></img>` becomes\n\t * `<imageBlock source=\"foo.jpg\"></imageBlock>` in the model.\n\t *\n\t * This helper is meant to convert view attributes from view elements which got converted to the model, so the view attribute\n\t * is set only on the corresponding model node:\n\t *\n\t * ```\n\t * <div class=\"dark\"><div>foo</div></div>    -->    <div dark=\"true\"><div>foo</div></div>\n\t * ```\n\t *\n\t * Above, `class=\"dark\"` attribute is added only to the `<div>` elements that has it. This is in contrary to\n\t * {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToAttribute} which sets attributes for\n\t * all the children in the model:\n\t *\n\t * ```\n\t * <strong>Foo</strong>   -->   <strong><p>Foo</p></strong>   -->   <paragraph><$text bold=\"true\">Foo</$text></paragraph>\n\t * ```\n\t *\n\t * Above is a sample of HTML code, that goes through autoparagraphing (first step) and then is converted (second step).\n\t * Even though `<strong>` is over `<p>` element, `bold=\"true\"` was added to the text.\n\t *\n\t * Keep in mind that the attribute will be set only if it is allowed by {@link module:engine/model/schema~Schema schema} configuration.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: 'src',\n\t * \tmodel: 'source'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: { key: 'src' },\n\t * \tmodel: 'source'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: { key: 'src' },\n\t * \tmodel: 'source',\n\t * \tconverterPriority: 'normal'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: {\n\t * \t\tkey: 'data-style',\n\t * \t\tvalue: /[\\s\\S]+/\n\t * \t},\n\t * \tmodel: 'styled'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: {\n\t * \t\tname: 'img',\n\t * \t\tkey: 'class',\n\t * \t\tvalue: 'styled-dark'\n\t * \t},\n\t * \tmodel: {\n\t * \t\tkey: 'styled',\n\t * \t\tvalue: 'dark'\n\t * \t}\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: {\n\t * \t\tkey: 'class',\n\t * \t\tvalue: /styled-[\\S]+/\n\t * \t},\n\t * \tmodel: {\n\t * \t\tkey: 'styled'\n\t * \t\tvalue: ( viewElement, conversionApi ) => {\n\t * \t\t\tconst regexp = /styled-([\\S]+)/;\n\t * \t\t\tconst match = viewElement.getAttribute( 'class' ).match( regexp );\n\t *\n\t * \t\t\treturn match[ 1 ];\n\t * \t\t}\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * Converting styles works a bit differently as it requires `view.styles` to be an object and by default\n\t * a model attribute will be set to `true` by such a converter. You can set the model attribute to any value by providing the `value`\n\t * callback that returns the desired value.\n\t *\n\t * ```ts\n\t * // Default conversion of font-weight style will result in setting bold attribute to true.\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: {\n\t * \t\tstyles: {\n\t * \t\t\t'font-weight': 'bold'\n\t * \t\t}\n\t * \t},\n\t * \tmodel: 'bold'\n\t * } );\n\t *\n\t * // This converter will pass any style value to the `lineHeight` model attribute.\n\t * editor.conversion.for( 'upcast' ).attributeToAttribute( {\n\t * \tview: {\n\t * \t\tstyles: {\n\t * \t\t\t'line-height': /[\\s\\S]+/\n\t * \t\t}\n\t * \t},\n\t * \tmodel: {\n\t * \t\tkey: 'lineHeight',\n\t * \t\tvalue: ( viewElement, conversionApi ) => viewElement.getStyle( 'line-height' )\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.view Specifies which view attribute will be converted. If a `String` is passed,\n\t * attributes with given key will be converted. If an `Object` is passed, it must have a required `key` property,\n\t * specifying view attribute key, and may have an optional `value` property, specifying view attribute value and optional `name`\n\t * property specifying a view element name from/on which the attribute should be converted. `value` can be given as a `String`,\n\t * a `RegExp` or a function callback, that takes view attribute value as the only parameter and returns `Boolean`.\n\t * @param config.model Model attribute key or an object with `key` and `value` properties, describing\n\t * the model attribute. `value` property may be set as a function that takes a view element and\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API} and returns the value.\n\t * If `String` is given, the model attribute value will be same as view attribute value.\n\t * @param config.converterPriority Converter priority. Defaults to `low`.\n\t */\n\tpublic attributeToAttribute( config: {\n\t\tview: string | {\n\t\t\tkey: string;\n\t\t\tvalue?: string | RegExp | Array<string> | Record<string, string> | Record<string, RegExp> | ( ( value: unknown ) => boolean );\n\t\t\tname?: string;\n\t\t} | {\n\t\t\tname?: string | RegExp;\n\t\t\tstyles?: PropertyPatterns;\n\t\t\tclasses?: ClassPatterns;\n\t\t\tattributes?: PropertyPatterns;\n\t\t};\n\t\tmodel: string | {\n\t\t\tkey: string;\n\t\t\tvalue: unknown | ( ( viewElement: ViewElement, conversionApi: UpcastConversionApi ) => unknown );\n\t\t\tname?: string;\n\t\t};\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastAttributeToAttribute( config ) );\n\t}\n\n\t/**\n\t * View element to model marker conversion helper.\n\t *\n\t * This conversion results in creating a model marker. For example, if the marker was stored in a view as an element:\n\t * `<p>Fo<span data-marker=\"comment\" data-comment-id=\"7\"></span>o</p><p>B<span data-marker=\"comment\" data-comment-id=\"7\"></span>ar</p>`,\n\t * after the conversion is done, the marker will be available in\n\t * {@link module:engine/model/model~Model#markers model document markers}.\n\t *\n\t * **Note**: When this helper is used in the data upcast in combination with\n\t * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToData `#markerToData()`} in the data downcast,\n\t * then invalid HTML code (e.g. a span between table cells) may be produced by the latter converter.\n\t *\n\t * In most of the cases, the {@link #dataToMarker} should be used instead.\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'upcast' ).elementToMarker( {\n\t * \tview: 'marker-search',\n\t * \tmodel: 'search'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToMarker( {\n\t * \tview: 'marker-search',\n\t * \tmodel: 'search',\n\t * \tconverterPriority: 'high'\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToMarker( {\n\t * \tview: 'marker-search',\n\t * \tmodel: ( viewElement, conversionApi ) => 'comment:' + viewElement.getAttribute( 'data-comment-id' )\n\t * } );\n\t *\n\t * editor.conversion.for( 'upcast' ).elementToMarker( {\n\t * \tview: {\n\t * \t\tname: 'span',\n\t * \t\tattributes: {\n\t * \t\t\t'data-marker': 'search'\n\t * \t\t}\n\t * \t},\n\t * \tmodel: 'search'\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.view Pattern matching all view elements which should be converted.\n\t * @param config.model Name of the model marker, or a function that takes a view element and returns\n\t * a model marker name.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic elementToMarker( config: {\n\t\tview: MatcherPattern;\n\t\tmodel: string | MarkerFromElementCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastElementToMarker( config ) );\n\t}\n\n\t/**\n\t * View-to-model marker conversion helper.\n\t *\n\t * Converts view data created by {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToData `#markerToData()`}\n\t * back to a model marker.\n\t *\n\t * This converter looks for specific view elements and view attributes that mark marker boundaries. See\n\t * {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToData `#markerToData()`} to learn what view data\n\t * is expected by this converter.\n\t *\n\t * The `config.view` property is equal to the marker group name to convert.\n\t *\n\t * By default, this converter creates markers with the `group:name` name convention (to match the default `markerToData` conversion).\n\t *\n\t * The conversion configuration can take a function that will generate a marker name.\n\t * If such function is set as the `config.model` parameter, it is passed the `name` part from the view element or attribute and it is\n\t * expected to return a string with the marker name.\n\t *\n\t * Basic usage:\n\t *\n\t * ```ts\n\t * // Using the default conversion.\n\t * // In this case, all markers from the `comment` group will be converted.\n\t * // The conversion will look for `<comment-start>` and `<comment-end>` tags and\n\t * // `data-comment-start-before`, `data-comment-start-after`,\n\t * // `data-comment-end-before` and `data-comment-end-after` attributes.\n\t * editor.conversion.for( 'upcast' ).dataToMarker( {\n\t * \tview: 'comment'\n\t * } );\n\t * ```\n\t *\n\t * An example of a model that may be generated by this conversion:\n\t *\n\t * ```\n\t * // View:\n\t * <p>Foo<comment-start name=\"commentId:uid\"></comment-start>bar</p>\n\t * <figure data-comment-end-after=\"commentId:uid\" class=\"image\"><img src=\"abc.jpg\" /></figure>\n\t *\n\t * // Model:\n\t * <paragraph>Foo[bar</paragraph>\n\t * <imageBlock src=\"abc.jpg\"></imageBlock>]\n\t * ```\n\t *\n\t * Where `[]` are boundaries of a marker that will receive the `comment:commentId:uid` name.\n\t *\n\t * Other examples of usage:\n\t *\n\t * ```ts\n\t * // Using a custom function which is the same as the default conversion:\n\t * editor.conversion.for( 'upcast' ).dataToMarker( {\n\t * \tview: 'comment',\n\t * \tmodel: ( name, conversionApi ) => 'comment:' + name,\n\t * } );\n\t *\n\t * // Using the converter priority:\n\t * editor.conversion.for( 'upcast' ).dataToMarker( {\n\t * \tview: 'comment',\n\t * \tmodel: ( name, conversionApi ) => 'comment:' + name,\n\t * \tconverterPriority: 'high'\n\t * } );\n\t * ```\n\t *\n\t * See {@link module:engine/conversion/conversion~Conversion#for `conversion.for()`} to learn how to add a converter\n\t * to the conversion process.\n\t *\n\t * @param config Conversion configuration.\n\t * @param config.view The marker group name to convert.\n\t * @param config.model A function that takes the `name` part from the view element or attribute and\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi upcast conversion API} and returns the marker name.\n\t * @param config.converterPriority Converter priority.\n\t */\n\tpublic dataToMarker( config: {\n\t\tview: string;\n\t\tmodel?: MarkerFromAttributeCreatorFunction;\n\t\tconverterPriority?: PriorityString;\n\t} ): this {\n\t\treturn this.add( upcastDataToMarker( config ) );\n\t}\n}\n\n/**\n * Function factory, creates a converter that converts {@link module:engine/view/documentfragment~DocumentFragment view document fragment}\n * or all children of {@link module:engine/view/element~Element} into\n * {@link module:engine/model/documentfragment~DocumentFragment model document fragment}.\n * This is the \"entry-point\" converter for upcast (view to model conversion). This converter starts the conversion of all children\n * of passed view document fragment. Those children {@link module:engine/view/node~Node view nodes} are then handled by other converters.\n *\n * This also a \"default\", last resort converter for all view elements that has not been converted by other converters.\n * When a view element is being converted to the model but it does not have converter specified, that view element\n * will be converted to {@link module:engine/model/documentfragment~DocumentFragment model document fragment} and returned.\n *\n * @returns Universal converter for view {@link module:engine/view/documentfragment~DocumentFragment fragments} and\n * {@link module:engine/view/element~Element elements} that returns\n * {@link module:engine/model/documentfragment~DocumentFragment model fragment} with children of converted view item.\n */\nexport function convertToModelFragment() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement | ViewDocumentFragment>,\n\t\tconversionApi: UpcastConversionApi\n\t): void => {\n\t\t// Second argument in `consumable.consume` is discarded for ViewDocumentFragment but is needed for ViewElement.\n\t\tif ( !data.modelRange && conversionApi.consumable.consume( data.viewItem, { name: true } ) ) {\n\t\t\tconst { modelRange, modelCursor } = conversionApi.convertChildren( data.viewItem, data.modelCursor );\n\n\t\t\tdata.modelRange = modelRange;\n\t\t\tdata.modelCursor = modelCursor;\n\t\t}\n\t};\n}\n\n/**\n * Function factory, creates a converter that converts {@link module:engine/view/text~Text} to {@link module:engine/model/text~Text}.\n *\n * @returns {@link module:engine/view/text~Text View text} converter.\n */\nexport function convertText() {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewText>,\n\t\t{ schema, consumable, writer }: UpcastConversionApi\n\t): void => {\n\t\tlet position = data.modelCursor;\n\n\t\t// When node is already converted then do nothing.\n\t\tif ( !consumable.test( data.viewItem ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !schema.checkChild( position, '$text' ) ) {\n\t\t\tif ( !isParagraphable( position, '$text', schema ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Do not auto-paragraph whitespaces.\n\t\t\tif ( data.viewItem.data.trim().length == 0 ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Wrap `$text` in paragraph and include any marker that is directly before `$text`. See #13053.\n\t\t\tconst nodeBefore = position.nodeBefore;\n\n\t\t\tposition = wrapInParagraph( position, writer );\n\n\t\t\tif ( nodeBefore && nodeBefore.is( 'element', '$marker' ) ) {\n\t\t\t\t// Move `$marker` to the paragraph.\n\t\t\t\twriter.move( writer.createRangeOn( nodeBefore ), position );\n\t\t\t\tposition = writer.createPositionAfter( nodeBefore );\n\t\t\t}\n\t\t}\n\n\t\tconsumable.consume( data.viewItem );\n\n\t\tconst text = writer.createText( data.viewItem.data );\n\n\t\twriter.insert( text, position );\n\n\t\tdata.modelRange = writer.createRange(\n\t\t\tposition,\n\t\t\tposition.getShiftedBy( text.offsetSize )\n\t\t);\n\t\tdata.modelCursor = data.modelRange.end;\n\t};\n}\n\n/**\n * Function factory, creates a callback function which converts a {@link module:engine/view/selection~Selection\n * view selection} taken from the {@link module:engine/view/document~Document#event:selectionChange} event\n * and sets in on the {@link module:engine/model/document~Document#selection model}.\n *\n * **Note**: because there is no view selection change dispatcher nor any other advanced view selection to model\n * conversion mechanism, the callback should be set directly on view document.\n *\n * ```ts\n * view.document.on( 'selectionChange', convertSelectionChange( modelDocument, mapper ) );\n * ```\n *\n * @param model Data model.\n * @param mapper Conversion mapper.\n * @returns {@link module:engine/view/document~Document#event:selectionChange} callback function.\n */\nexport function convertSelectionChange( model: Model, mapper: Mapper ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: { newSelection: ViewSelection | ViewDocumentSelection }\n\t): void => {\n\t\tconst viewSelection = data.newSelection;\n\n\t\tconst ranges: Array<ModelRange> = [];\n\n\t\tfor ( const viewRange of viewSelection.getRanges() ) {\n\t\t\tranges.push( mapper.toModelRange( viewRange ) );\n\t\t}\n\n\t\tconst modelSelection = model.createSelection( ranges, { backward: viewSelection.isBackward } );\n\n\t\tif ( !modelSelection.isEqual( model.document.selection ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( modelSelection );\n\t\t\t} );\n\t\t}\n\t};\n}\n\n/**\n * View element to model element conversion helper.\n *\n * See {@link ~UpcastHelpers#elementToElement `.elementToElement()` upcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.view Pattern matching all view elements which should be converted. If not\n * set, the converter will fire for every view element.\n * @param config.model Name of the model element, a model element\n * instance or a function that takes a view element and returns a model element. The model element will be inserted in the model.\n * @param config.converterPriority Converter priority.\n * @returns Conversion helper.\n */\nfunction upcastElementToElement( config: {\n\tview: MatcherPattern;\n\tmodel: string | ElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tconst converter = prepareToElementConverter( config );\n\n\tconst elementName = getViewElementNameFromConfig( config.view );\n\tconst eventName = elementName ? `element:${ elementName }` as const : 'element';\n\n\treturn ( dispatcher: UpcastDispatcher ) => {\n\t\tdispatcher.on<UpcastElementEvent>( eventName, converter, { priority: config.converterPriority || 'normal' } );\n\t};\n}\n\n/**\n * View element to model attribute conversion helper.\n *\n * See {@link ~UpcastHelpers#elementToAttribute `.elementToAttribute()` upcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.view Pattern matching all view elements which should be converted.\n * @param config.model Model attribute key or an object with `key` and `value` properties, describing\n * the model attribute. `value` property may be set as a function that takes a view element and returns the value.\n * If `String` is given, the model attribute value will be set to `true`.\n * @param config.converterPriority Converter priority. Defaults to `low`.\n * @returns Conversion helper.\n */\nfunction upcastElementToAttribute( config: {\n\tview: MatcherPattern;\n\tmodel: string | {\n\t\tkey: string;\n\t\tvalue?: unknown | AttributeCreatorFunction;\n\t};\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tnormalizeModelAttributeConfig( config );\n\n\tconst converter = prepareToAttributeConverter( config as any, false );\n\n\tconst elementName = getViewElementNameFromConfig( config.view );\n\tconst eventName = elementName ? `element:${ elementName }` as const : 'element';\n\n\treturn ( dispatcher: UpcastDispatcher ) => {\n\t\tdispatcher.on<UpcastElementEvent>( eventName, converter, { priority: config.converterPriority || 'low' } );\n\t};\n}\n\n/**\n * View attribute to model attribute conversion helper.\n *\n * See {@link ~UpcastHelpers#attributeToAttribute `.attributeToAttribute()` upcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.view Specifies which view attribute will be converted. If a `String` is passed,\n * attributes with given key will be converted. If an `Object` is passed, it must have a required `key` property,\n * specifying view attribute key, and may have an optional `value` property, specifying view attribute value and optional `name`\n * property specifying a view element name from/on which the attribute should be converted. `value` can be given as a `String`,\n * a `RegExp` or a function callback, that takes view attribute value as the only parameter and returns `Boolean`.\n * @param config.model Model attribute key or an object with `key` and `value` properties, describing\n * the model attribute. `value` property may be set as a function that takes a view element and returns the value.\n * If `String` is given, the model attribute value will be same as view attribute value.\n * @param config.converterPriority Converter priority. Defaults to `low`.\n * @returns Conversion helper.\n */\nfunction upcastAttributeToAttribute( config: {\n\tview: string | {\n\t\tkey?: string;\n\t\tvalue?: string | RegExp | Array<string> | Record<string, string> | Record<string, RegExp> | ( ( value: unknown ) => boolean );\n\t\tname?: string | RegExp;\n\t\tstyles?: PropertyPatterns;\n\t\tclasses?: ClassPatterns;\n\t\tattributes?: PropertyPatterns;\n\t};\n\tmodel: string | {\n\t\tkey: string;\n\t\tvalue: unknown | ( ( viewElement: ViewElement, conversionApi: UpcastConversionApi ) => unknown );\n\t};\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\tlet viewKey: string | null = null;\n\n\tif ( typeof config.view == 'string' || config.view.key ) {\n\t\tviewKey = normalizeViewAttributeKeyValueConfig( config );\n\t}\n\n\tnormalizeModelAttributeConfig( config, viewKey );\n\n\tconst converter = prepareToAttributeConverter( config as any, true );\n\n\treturn ( dispatcher: UpcastDispatcher ) => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element', converter, { priority: config.converterPriority || 'low' } );\n\t};\n}\n\n/**\n * View element to model marker conversion helper.\n *\n * See {@link ~UpcastHelpers#elementToMarker `.elementToMarker()` upcast helper} for examples.\n *\n * @param config Conversion configuration.\n * @param config.view Pattern matching all view elements which should be converted.\n * @param config.model Name of the model marker, or a function that takes a view element and returns\n * a model marker name.\n * @param config.converterPriority Converter priority.\n * @returns Conversion helper.\n */\nfunction upcastElementToMarker( config: {\n\tview: MatcherPattern;\n\tmodel: string | MarkerFromElementCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconst model = normalizeElementToMarkerModelConfig( config.model );\n\n\treturn upcastElementToElement( { ...config, model } );\n}\n\n/**\n * View data to model marker conversion helper.\n *\n * See {@link ~UpcastHelpers#dataToMarker} to learn more.\n *\n * @returns Conversion helper.\n */\nfunction upcastDataToMarker( config: {\n\tview: string;\n\tmodel?: MarkerFromAttributeCreatorFunction;\n\tconverterPriority?: PriorityString;\n} ) {\n\tconfig = cloneDeep( config );\n\n\t// Default conversion.\n\tif ( !config.model ) {\n\t\tconfig.model = name => {\n\t\t\treturn name ? config.view + ':' + name : config.view;\n\t\t};\n\t}\n\n\tconst normalizedConfig = {\n\t\tview: config.view,\n\t\tmodel: config.model!\n\t};\n\n\tconst converterStart = prepareToElementConverter( normalizeDataToMarkerConfig( normalizedConfig, 'start' ) );\n\tconst converterEnd = prepareToElementConverter( normalizeDataToMarkerConfig( normalizedConfig, 'end' ) );\n\n\treturn ( dispatcher: UpcastDispatcher ): void => {\n\t\tdispatcher.on<UpcastElementEvent>(\n\t\t\t`element:${ config.view }-start`,\n\t\t\tconverterStart,\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\t\tdispatcher.on<UpcastElementEvent>(\n\t\t\t`element:${ config.view }-end`,\n\t\t\tconverterEnd,\n\t\t\t{ priority: config.converterPriority || 'normal' }\n\t\t);\n\n\t\t// Below is a hack that is needed to properly handle `converterPriority` for both elements and attributes.\n\t\t// Attribute conversion needs to be performed *after* element conversion.\n\t\t// This converter handles both element conversion and attribute conversion, which means that if a single\n\t\t// `config.converterPriority` is used, it will lead to problems. For example, if the `'high'` priority is used,\n\t\t// the attribute conversion will be performed before a lot of element upcast converters.\n\t\t// On the other hand, we want to support `config.converterPriority` and converter overwriting.\n\t\t//\n\t\t// To make it work, we need to do some extra processing for priority for attribute converter.\n\t\t// Priority `'low'` value should be the base value and then we will change it depending on `config.converterPriority` value.\n\t\t//\n\t\t// This hack probably would not be needed if attributes are upcasted separately.\n\t\t//\n\t\tconst basePriority = priorities.get( 'low' );\n\t\tconst maxPriority = priorities.get( 'highest' );\n\t\tconst priorityFactor = priorities.get( config.converterPriority ) / maxPriority; // Number in range [ -1, 1 ].\n\n\t\tdispatcher.on<UpcastElementEvent>(\n\t\t\t'element',\n\t\t\tupcastAttributeToMarker( normalizedConfig ),\n\t\t\t{ priority: basePriority + priorityFactor }\n\t\t);\n\t};\n}\n\n/**\n * Function factory, returns a callback function which converts view attributes to a model marker.\n *\n * The converter looks for elements with `data-group-start-before`, `data-group-start-after`, `data-group-end-before`\n * and `data-group-end-after` attributes and inserts `$marker` model elements before/after those elements.\n * `group` part is specified in `config.view`.\n *\n * @returns Marker converter.\n */\nfunction upcastAttributeToMarker( config: {\n\tview: string;\n\tmodel: MarkerFromAttributeCreatorFunction;\n} ) {\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement>,\n\t\tconversionApi: UpcastConversionApi\n\t) => {\n\t\tconst attrName = `data-${ config.view }`;\n\n\t\t// Check if any attribute for the given view item can be consumed before changing the conversion data\n\t\t// and consuming view items with these attributes.\n\t\tif (\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-end-after' } ) &&\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-start-after' } ) &&\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-end-before' } ) &&\n\t\t\t!conversionApi.consumable.test( data.viewItem, { attributes: attrName + '-start-before' } )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\t// This converter wants to add a model element, marking a marker, before/after an element (or maybe even group of elements).\n\t\t// To do that, we can use `data.modelRange` which is set on an element (or a group of elements) that has been upcasted.\n\t\t// But, if the processed view element has not been upcasted yet (it does not have been converted), we need to\n\t\t// fire conversion for its children first, then we will have `data.modelRange` available.\n\t\tif ( !data.modelRange ) {\n\t\t\tObject.assign( data, conversionApi.convertChildren( data.viewItem, data.modelCursor ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-end-after' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.end, data.viewItem.getAttribute( attrName + '-end-after' )!.split( ',' ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-start-after' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.end, data.viewItem.getAttribute( attrName + '-start-after' )!.split( ',' ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-end-before' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.start, data.viewItem.getAttribute( attrName + '-end-before' )!.split( ',' ) );\n\t\t}\n\n\t\tif ( conversionApi.consumable.consume( data.viewItem, { attributes: attrName + '-start-before' } ) ) {\n\t\t\taddMarkerElements( data.modelRange!.start, data.viewItem.getAttribute( attrName + '-start-before' )!.split( ',' ) );\n\t\t}\n\n\t\tfunction addMarkerElements( position: ModelPosition, markerViewNames: Array<string> ): void {\n\t\t\tfor ( const markerViewName of markerViewNames ) {\n\t\t\t\tconst markerName = config.model( markerViewName, conversionApi );\n\t\t\t\tconst element = conversionApi.writer.createElement( '$marker', { 'data-name': markerName } );\n\n\t\t\t\tconversionApi.writer.insert( element, position );\n\n\t\t\t\tif ( data.modelCursor.isEqual( position ) ) {\n\t\t\t\t\tdata.modelCursor = data.modelCursor.getShiftedBy( 1 );\n\t\t\t\t} else {\n\t\t\t\t\tdata.modelCursor = data.modelCursor._getTransformedByInsertion( position, 1 );\n\t\t\t\t}\n\n\t\t\t\tdata.modelRange = data.modelRange!._getTransformedByInsertion( position, 1 )[ 0 ];\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Helper function for from-view-element conversion. Checks if `config.view` directly specifies converted view element's name\n * and if so, returns it.\n *\n * @param config Conversion view config.\n * @returns View element name or `null` if name is not directly set.\n */\nfunction getViewElementNameFromConfig( viewConfig: any ): string | null {\n\tif ( typeof viewConfig == 'string' ) {\n\t\treturn viewConfig;\n\t}\n\n\tif ( typeof viewConfig == 'object' && typeof viewConfig.name == 'string' ) {\n\t\treturn viewConfig.name;\n\t}\n\n\treturn null;\n}\n\n/**\n * Helper for to-model-element conversion. Takes a config object and returns a proper converter function.\n *\n * @param config Conversion configuration.\n * @returns View to model converter.\n */\nfunction prepareToElementConverter( config: {\n\tview: MatcherPattern;\n\tmodel: string | ElementCreatorFunction;\n} ) {\n\tconst matcher = new Matcher( config.view );\n\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement>,\n\t\tconversionApi: UpcastConversionApi\n\t): void => {\n\t\tconst matcherResult = matcher.match( data.viewItem );\n\n\t\tif ( !matcherResult ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst match = matcherResult.match;\n\n\t\t// Force consuming element's name.\n\t\tmatch.name = true;\n\n\t\tif ( !conversionApi.consumable.test( data.viewItem, match ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelElement = getModelElement( config.model, data.viewItem, conversionApi );\n\n\t\tif ( !modelElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.safeInsert( modelElement, data.modelCursor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconversionApi.consumable.consume( data.viewItem, match );\n\t\tconversionApi.convertChildren( data.viewItem, modelElement );\n\t\tconversionApi.updateConversionResult( modelElement, data );\n\t};\n}\n\n/**\n * Helper function for upcasting-to-element converter. Takes the model configuration, the converted view element\n * and a writer instance and returns a model element instance to be inserted in the model.\n *\n * @param model Model conversion configuration.\n * @param input The converted view node.\n * @param conversionApi The upcast conversion API.\n */\nfunction getModelElement(\n\tmodel: string | ElementCreatorFunction,\n\tinput: ViewElement,\n\tconversionApi: UpcastConversionApi\n): ModelElement | null {\n\tif ( model instanceof Function ) {\n\t\treturn model( input, conversionApi );\n\t} else {\n\t\treturn conversionApi.writer.createElement( model );\n\t}\n}\n\n/**\n * Helper function view-attribute-to-model-attribute helper. Normalizes `config.view` which was set as `String` or\n * as an `Object` with `key`, `value` and `name` properties. Normalized `config.view` has is compatible with\n * {@link module:engine/view/matcher~MatcherPattern}.\n *\n * @param config Conversion config.\n * @returns Key of the converted view attribute.\n */\nfunction normalizeViewAttributeKeyValueConfig( config: any ) {\n\tif ( typeof config.view == 'string' ) {\n\t\tconfig.view = { key: config.view };\n\t}\n\n\tconst key: string = config.view.key;\n\tlet normalized: MatcherPattern;\n\n\tif ( key == 'class' || key == 'style' ) {\n\t\tconst keyName = key == 'class' ? 'classes' : 'styles';\n\n\t\tnormalized = {\n\t\t\t[ keyName ]: config.view.value\n\t\t};\n\t} else {\n\t\tconst value = typeof config.view.value == 'undefined' ? /[\\s\\S]*/ : config.view.value;\n\n\t\tnormalized = {\n\t\t\tattributes: {\n\t\t\t\t[ key ]: value\n\t\t\t}\n\t\t};\n\t}\n\n\tif ( config.view.name ) {\n\t\tnormalized.name = config.view.name;\n\t}\n\n\tconfig.view = normalized;\n\n\treturn key;\n}\n\n/**\n * Helper function that normalizes `config.model` in from-model-attribute conversion. `config.model` can be set\n * as a `String`, an `Object` with only `key` property or an `Object` with `key` and `value` properties. Normalized\n * `config.model` is an `Object` with `key` and `value` properties.\n *\n * @param config Conversion config.\n * @param viewAttributeKeyToCopy Key of the converted view attribute. If it is set, model attribute value\n * will be equal to view attribute value.\n */\nfunction normalizeModelAttributeConfig( config: any, viewAttributeKeyToCopy: string | null = null ) {\n\tconst defaultModelValue = viewAttributeKeyToCopy === null ? true :\n\t\t( viewElement: ViewElement ) => viewElement.getAttribute( viewAttributeKeyToCopy );\n\n\tconst key = typeof config.model != 'object' ? config.model : config.model.key;\n\tconst value = typeof config.model != 'object' || typeof config.model.value == 'undefined' ? defaultModelValue : config.model.value;\n\n\tconfig.model = { key, value };\n}\n\n/**\n * Helper for to-model-attribute conversion. Takes the model attribute name and conversion configuration and returns\n * a proper converter function.\n *\n * @param config Conversion configuration. It is possible to provide multiple configurations in an array.\n * @param shallow If set to `true` the attribute will be set only on top-level nodes. Otherwise, it will be set\n * on all elements in the range.\n */\nfunction prepareToAttributeConverter(\n\tconfig: {\n\t\tview: MatcherPattern;\n\t\tmodel: {\n\t\t\tkey: string;\n\t\t\tvalue: AttributeCreatorFunction | unknown;\n\t\t};\n\t},\n\tshallow: boolean\n) {\n\tconst matcher = new Matcher( config.view );\n\n\treturn (\n\t\tevt: EventInfo,\n\t\tdata: UpcastConversionData<ViewElement>,\n\t\tconversionApi: UpcastConversionApi\n\t): void => {\n\t\t// Converting an attribute of an element that has not been converted to anything does not make sense\n\t\t// because there will be nowhere to set that attribute on. At this stage, the element should've already\n\t\t// been converted (https://github.com/ckeditor/ckeditor5/issues/11000).\n\t\tif ( !data.modelRange && shallow ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst match = matcher.match( data.viewItem );\n\n\t\t// If there is no match, this callback should not do anything.\n\t\tif ( !match ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( onlyViewNameIsDefined( config.view, data.viewItem ) ) {\n\t\t\tmatch.match.name = true;\n\t\t} else {\n\t\t\t// Do not test `name` consumable because it could get consumed already while upcasting some other attribute\n\t\t\t// on the same element (for example <span class=\"big\" style=\"color: red\">foo</span>).\n\t\t\tdelete match.match.name;\n\t\t}\n\n\t\t// Try to consume appropriate values from consumable values list.\n\t\tif ( !conversionApi.consumable.test( data.viewItem, match.match ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelKey = config.model.key;\n\t\tconst modelValue: unknown = typeof config.model.value == 'function' ?\n\t\t\tconfig.model.value( data.viewItem, conversionApi ) : config.model.value;\n\n\t\t// Do not convert if attribute building function returned falsy value.\n\t\tif ( modelValue === null ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Since we are converting to attribute we need a range on which we will set the attribute.\n\t\t// If the range is not created yet, let's create it by converting children of the current node first.\n\t\tif ( !data.modelRange ) {\n\t\t\t// Convert children and set conversion result as a current data.\n\t\t\tObject.assign( data, conversionApi.convertChildren( data.viewItem, data.modelCursor ) );\n\t\t}\n\n\t\t// Set attribute on current `output`. `Schema` is checked inside this helper function.\n\t\tconst attributeWasSet = setAttributeOn( data.modelRange!, { key: modelKey, value: modelValue }, shallow, conversionApi );\n\n\t\t// It may happen that a converter will try to set an attribute that is not allowed in the given context.\n\t\t// In such a situation we cannot consume the attribute. See: https://github.com/ckeditor/ckeditor5/pull/9249#issuecomment-815658459.\n\t\tif ( attributeWasSet ) {\n\t\t\t// Verify if the element itself wasn't consumed yet. It could be consumed already while upcasting some other attribute\n\t\t\t// on the same element (for example <span class=\"big\" style=\"color: red\">foo</span>).\n\t\t\t// We need to consume it so other features (especially GHS) won't try to convert it.\n\t\t\t// Note that it's not tested by the other element-to-attribute converters whether an element was consumed before\n\t\t\t// (in case of converters that the element itself is just a context and not the primary information to convert).\n\t\t\tif ( conversionApi.consumable.test( data.viewItem, { name: true } ) ) {\n\t\t\t\tmatch.match.name = true;\n\t\t\t}\n\n\t\t\tconversionApi.consumable.consume( data.viewItem, match.match );\n\t\t}\n\t};\n}\n\n/**\n * Helper function that checks if element name should be consumed in attribute converters.\n *\n * @param viewConfig Conversion view config.\n */\nfunction onlyViewNameIsDefined( viewConfig: any, viewItem: ViewElement ): boolean {\n\t// https://github.com/ckeditor/ckeditor5-engine/issues/1786\n\tconst configToTest = typeof viewConfig == 'function' ? viewConfig( viewItem ) : viewConfig;\n\n\tif ( typeof configToTest == 'object' && !getViewElementNameFromConfig( configToTest ) ) {\n\t\treturn false;\n\t}\n\n\treturn !configToTest.classes && !configToTest.attributes && !configToTest.styles;\n}\n\n/**\n * Helper function for to-model-attribute converter. Sets model attribute on given range. Checks {@link module:engine/model/schema~Schema}\n * to ensure proper model structure.\n *\n * If any node on the given range has already defined an attribute with the same name, its value will not be updated.\n *\n * @param modelRange Model range on which attribute should be set.\n * @param modelAttribute Model attribute to set.\n * @param conversionApi Conversion API.\n * @param shallow If set to `true` the attribute will be set only on top-level nodes. Otherwise, it will be set\n * on all elements in the range.\n * @returns `true` if attribute was set on at least one node from given `modelRange`.\n */\nfunction setAttributeOn(\n\tmodelRange: ModelRange,\n\tmodelAttribute: {\n\t\tkey: string;\n\t\tvalue: unknown;\n\t},\n\tshallow: boolean,\n\tconversionApi: UpcastConversionApi\n): boolean {\n\tlet result = false;\n\n\t// Set attribute on each item in range according to Schema.\n\tfor ( const node of Array.from( modelRange.getItems( { shallow } ) ) ) {\n\t\t// Skip if not allowed.\n\t\tif ( !conversionApi.schema.checkAttribute( node, modelAttribute.key ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Mark the node as consumed even if the attribute will not be updated because it's in a valid context (schema)\n\t\t// and would be converted if the attribute wouldn't be present. See #8921.\n\t\tresult = true;\n\n\t\t// Do not override the attribute if it's already present.\n\t\tif ( node.hasAttribute( modelAttribute.key ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconversionApi.writer.setAttribute( modelAttribute.key, modelAttribute.value, node );\n\t}\n\n\treturn result;\n}\n\n/**\n * Helper function for upcasting-to-marker conversion. Takes the config in a format requested by `upcastElementToMarker()`\n * function and converts it to a format that is supported by `upcastElementToElement()` function.\n */\nfunction normalizeElementToMarkerModelConfig( model: string | MarkerFromElementCreatorFunction ): ElementCreatorFunction {\n\treturn ( viewElement, conversionApi ) => {\n\t\tconst markerName = typeof model == 'string' ? model : model( viewElement, conversionApi );\n\n\t\treturn conversionApi.writer.createElement( '$marker', { 'data-name': markerName } );\n\t};\n}\n\n/**\n * Helper function for upcasting-to-marker conversion. Takes the config in a format requested by `upcastDataToMarker()`\n * function and converts it to a format that is supported by `upcastElementToElement()` function.\n */\nfunction normalizeDataToMarkerConfig(\n\tconfig: {\n\t\tview: string;\n\t\tmodel: MarkerFromAttributeCreatorFunction;\n\t},\n\ttype: string\n) {\n\tconst elementCreatorFunction: ElementCreatorFunction = ( viewElement, conversionApi ) => {\n\t\tconst viewName = viewElement.getAttribute( 'name' )!;\n\t\tconst markerName = config.model( viewName, conversionApi );\n\n\t\treturn conversionApi.writer.createElement( '$marker', { 'data-name': markerName } );\n\t};\n\n\treturn {\n\t\t// Upcast <markerGroup-start> and <markerGroup-end> elements.\n\t\tview: `${ config.view }-${ type }`,\n\t\tmodel: elementCreatorFunction\n\t};\n}\n\nexport type ElementCreatorFunction = (\n\tviewElement: ViewElement,\n\tconversionApi: UpcastConversionApi\n) => ModelElement | null;\n\nexport type AttributeCreatorFunction = (\n\tmodelElement: ModelElement,\n\tconversionApi: UpcastConversionApi\n) => unknown;\n\nexport type MarkerFromElementCreatorFunction = (\n\tviewElement: ViewElement,\n\tconversionApi: UpcastConversionApi\n) => string;\n\nexport type MarkerFromAttributeCreatorFunction = (\n\tattributeValue: string,\n\tconversionApi: UpcastConversionApi\n) => string;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/selection-post-fixer\n */\n\nimport Position from '../position';\nimport Range from '../range';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Model from '../model';\nimport type Node from '../node';\nimport type Schema from '../schema';\nimport type Writer from '../writer';\nimport type Element from '../element';\n\n/**\n * Injects selection post-fixer to the model.\n *\n * The role of the selection post-fixer is to ensure that the selection is in a correct place\n * after a {@link module:engine/model/model~Model#change `change()`} block was executed.\n *\n * The correct position means that:\n *\n * * All collapsed selection ranges are in a place where the {@link module:engine/model/schema~Schema}\n * allows a `$text`.\n * * None of the selection's non-collapsed ranges crosses a {@link module:engine/model/schema~Schema#isLimit limit element}\n * boundary (a range must be rooted within one limit element).\n * * Only {@link module:engine/model/schema~Schema#isSelectable selectable elements} can be selected from the outside\n * (e.g. `[<paragraph>foo</paragraph>]` is invalid). This rule applies independently to both selection ends, so this\n * selection is correct: `<paragraph>f[oo</paragraph><imageBlock></imageBlock>]`.\n *\n * If the position is not correct, the post-fixer will automatically correct it.\n *\n * ## Fixing a non-collapsed selection\n *\n * See as an example a selection that starts in a P1 element and ends inside the text of a TD element\n * (`[` and `]` are range boundaries and `(l)` denotes an element defined as `isLimit=true`):\n *\n * ```\n * root\n *  |- element P1\n *  |   |- \"foo\"                                      root\n *  |- element TABLE (l)                   P1         TABLE             P2\n *  |   |- element TR (l)                 f o[o     TR      TR         b a r\n *  |   |   |- element TD (l)                       TD      TD\n *  |   |       |- \"aaa\"                          a]a a    b b b\n *  |   |- element TR (l)\n *  |   |   |- element TD (l)                           ||\n *  |   |       |- \"bbb\"                                ||\n *  |- element P2                                       VV\n *  |   |- \"bar\"\n *                                                    root\n *                                         P1         TABLE]            P2\n *                                        f o[o     TR      TR         b a r\n *                                                  TD      TD\n *                                                a a a    b b b\n * ```\n *\n * In the example above, the TABLE, TR and TD are defined as `isLimit=true` in the schema. The range which is not contained within\n * a single limit element must be expanded to select the outermost limit element. The range end is inside the text node of the TD element.\n * As the TD element is a child of the TR and TABLE elements, where both are defined as `isLimit=true` in the schema, the range must be\n * expanded to select the whole TABLE element.\n *\n * **Note** If the selection contains multiple ranges, the method returns a minimal set of ranges that are not intersecting after expanding\n * them to select `isLimit=true` elements.\n */\nexport function injectSelectionPostFixer( model: Model ): void {\n\tmodel.document.registerPostFixer( writer => selectionPostFixer( writer, model ) );\n}\n\n/**\n * The selection post-fixer.\n */\nfunction selectionPostFixer( writer: Writer, model: Model ): boolean {\n\tconst selection = model.document.selection;\n\tconst schema = model.schema;\n\n\tconst ranges = [];\n\n\tlet wasFixed = false;\n\n\tfor ( const modelRange of selection.getRanges() ) {\n\t\t// Go through all ranges in selection and try fixing each of them.\n\t\t// Those ranges might overlap but will be corrected later.\n\t\tconst correctedRange = tryFixingRange( modelRange, schema );\n\n\t\t// \"Selection fixing\" algorithms sometimes get lost. In consequence, it may happen\n\t\t// that a new range is returned but, in fact, it has the same positions as the original\n\t\t// range anyway. If this range is not discarded, a new selection will be set and that,\n\t\t// for instance, would destroy the selection attributes. Let's make sure that the post-fixer\n\t\t// actually worked first before setting a new selection.\n\t\t//\n\t\t// https://github.com/ckeditor/ckeditor5/issues/6693\n\t\tif ( correctedRange && !correctedRange.isEqual( modelRange ) ) {\n\t\t\tranges.push( correctedRange );\n\t\t\twasFixed = true;\n\t\t} else {\n\t\t\tranges.push( modelRange );\n\t\t}\n\t}\n\n\t// If any of ranges were corrected update the selection.\n\tif ( wasFixed ) {\n\t\twriter.setSelection( mergeIntersectingRanges( ranges ), { backward: selection.isBackward } );\n\t}\n\n\treturn false;\n}\n\n/**\n * Tries fixing a range if it's incorrect.\n *\n * **Note:** This helper is used by the selection post-fixer and to fix the `beforeinput` target ranges.\n *\n * @returns Returns fixed range or null if range is valid.\n */\nexport function tryFixingRange( range: Range, schema: Schema ): Range | null {\n\tif ( range.isCollapsed ) {\n\t\treturn tryFixingCollapsedRange( range, schema );\n\t}\n\n\treturn tryFixingNonCollapsedRage( range, schema );\n}\n\n/**\n * Tries to fix collapsed ranges.\n *\n * * Fixes situation when a range is in a place where $text is not allowed\n *\n * @param range Collapsed range to fix.\n * @returns Returns fixed range or null if range is valid.\n */\nfunction tryFixingCollapsedRange( range: Range, schema: Schema ) {\n\tconst originalPosition = range.start;\n\n\tconst nearestSelectionRange = schema.getNearestSelectionRange( originalPosition );\n\n\t// This might be null, i.e. when the editor data is empty or the selection is inside a limit element\n\t// that doesn't allow text inside.\n\t// In the first case, there is no need to fix the selection range.\n\t// In the second, let's go up to the outer selectable element\n\tif ( !nearestSelectionRange ) {\n\t\tconst ancestorObject = originalPosition.getAncestors().reverse().find( ( item ): item is Element => schema.isObject( item ) );\n\n\t\tif ( ancestorObject ) {\n\t\t\treturn Range._createOn( ancestorObject );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\tif ( !nearestSelectionRange.isCollapsed ) {\n\t\treturn nearestSelectionRange;\n\t}\n\n\tconst fixedPosition = nearestSelectionRange.start;\n\n\t// Fixed position is the same as original - no need to return corrected range.\n\tif ( originalPosition.isEqual( fixedPosition ) ) {\n\t\treturn null;\n\t}\n\n\treturn new Range( fixedPosition );\n}\n\n/**\n * Tries to fix an expanded range.\n *\n * @param range Expanded range to fix.\n * @returns Returns fixed range or null if range is valid.\n */\nfunction tryFixingNonCollapsedRage( range: Range, schema: Schema ) {\n\tconst { start, end } = range;\n\n\tconst isTextAllowedOnStart = schema.checkChild( start, '$text' );\n\tconst isTextAllowedOnEnd = schema.checkChild( end, '$text' );\n\n\tconst startLimitElement = schema.getLimitElement( start );\n\tconst endLimitElement = schema.getLimitElement( end );\n\n\t// Ranges which both end are inside the same limit element (or root) might needs only minor fix.\n\tif ( startLimitElement === endLimitElement ) {\n\t\t// Range is valid when both position allows to place a text:\n\t\t// - <block>f[oobarba]z</block>\n\t\t// This would be \"fixed\" by a next check but as it will be the same it's better to return null so the selection stays the same.\n\t\tif ( isTextAllowedOnStart && isTextAllowedOnEnd ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// Range that is on non-limit element (or is partially) must be fixed so it is placed inside the block around $text:\n\t\t// - [<block>foo</block>]    ->    <block>[foo]</block>\n\t\t// - [<block>foo]</block>    ->    <block>[foo]</block>\n\t\t// - <block>f[oo</block>]    ->    <block>f[oo]</block>\n\t\t// - [<block>foo</block><selectable></selectable>]    ->    <block>[foo</block><selectable></selectable>]\n\t\tif ( checkSelectionOnNonLimitElements( start, end, schema ) ) {\n\t\t\tconst isStartBeforeSelectable = start.nodeAfter && schema.isSelectable( start.nodeAfter );\n\t\t\tconst fixedStart = isStartBeforeSelectable ? null : schema.getNearestSelectionRange( start, 'forward' );\n\n\t\t\tconst isEndAfterSelectable = end.nodeBefore && schema.isSelectable( end.nodeBefore );\n\t\t\tconst fixedEnd = isEndAfterSelectable ? null : schema.getNearestSelectionRange( end, 'backward' );\n\n\t\t\t// The schema.getNearestSelectionRange might return null - if that happens use original position.\n\t\t\tconst rangeStart = fixedStart ? fixedStart.start : start;\n\t\t\tconst rangeEnd = fixedEnd ? fixedEnd.end : end;\n\n\t\t\treturn new Range( rangeStart, rangeEnd );\n\t\t}\n\t}\n\n\tconst isStartInLimit = startLimitElement && !startLimitElement.is( 'rootElement' );\n\tconst isEndInLimit = endLimitElement && !endLimitElement.is( 'rootElement' );\n\n\t// At this point we eliminated valid positions on text nodes so if one of range positions is placed inside a limit element\n\t// then the range crossed limit element boundaries and needs to be fixed.\n\tif ( isStartInLimit || isEndInLimit ) {\n\t\tconst bothInSameParent = ( start.nodeAfter && end.nodeBefore ) && start.nodeAfter.parent === end.nodeBefore.parent;\n\n\t\tconst expandStart = isStartInLimit && ( !bothInSameParent || !isSelectable( start.nodeAfter, schema ) );\n\t\tconst expandEnd = isEndInLimit && ( !bothInSameParent || !isSelectable( end.nodeBefore, schema ) );\n\n\t\t// Although we've already found limit element on start/end positions we must find the outer-most limit element.\n\t\t// as limit elements might be nested directly inside (ie table > tableRow > tableCell).\n\t\tlet fixedStart = start;\n\t\tlet fixedEnd = end;\n\n\t\tif ( expandStart ) {\n\t\t\tfixedStart = Position._createBefore( findOutermostLimitAncestor( startLimitElement, schema ) );\n\t\t}\n\n\t\tif ( expandEnd ) {\n\t\t\tfixedEnd = Position._createAfter( findOutermostLimitAncestor( endLimitElement, schema ) );\n\t\t}\n\n\t\treturn new Range( fixedStart, fixedEnd );\n\t}\n\n\t// Range was not fixed at this point so it is valid - ie it was placed around limit element already.\n\treturn null;\n}\n\n/**\n * Finds the outer-most ancestor.\n */\nfunction findOutermostLimitAncestor( startingNode: Node, schema: Schema ): Node {\n\tlet isLimitNode = startingNode;\n\tlet parent: Node | DocumentFragment = isLimitNode;\n\n\t// Find outer most isLimit block as such blocks might be nested (ie. in tables).\n\twhile ( schema.isLimit( parent ) && parent.parent ) {\n\t\tisLimitNode = parent;\n\t\tparent = parent.parent;\n\t}\n\n\treturn isLimitNode;\n}\n\n/**\n * Checks whether any of range boundaries is placed around non-limit elements.\n */\nfunction checkSelectionOnNonLimitElements( start: Position, end: Position, schema: Schema ) {\n\tconst startIsOnBlock = ( start.nodeAfter && !schema.isLimit( start.nodeAfter ) ) || schema.checkChild( start, '$text' );\n\tconst endIsOnBlock = ( end.nodeBefore && !schema.isLimit( end.nodeBefore ) ) || schema.checkChild( end, '$text' );\n\n\t// We should fix such selection when one of those nodes needs fixing.\n\treturn startIsOnBlock || endIsOnBlock;\n}\n\n/**\n * Returns a minimal non-intersecting array of ranges without duplicates.\n *\n * @param ranges Ranges to merge.\n * @returns Array of unique and non-intersecting ranges.\n */\nexport function mergeIntersectingRanges( ranges: Array<Range> ): Array<Range> {\n\tconst rangesToMerge = [ ...ranges ];\n\tconst rangeIndexesToRemove = new Set();\n\tlet currentRangeIndex = 1;\n\n\twhile ( currentRangeIndex < rangesToMerge.length ) {\n\t\tconst currentRange = rangesToMerge[ currentRangeIndex ];\n\t\tconst previousRanges = rangesToMerge.slice( 0, currentRangeIndex );\n\n\t\tfor ( const [ previousRangeIndex, previousRange ] of previousRanges.entries() ) {\n\t\t\tif ( rangeIndexesToRemove.has( previousRangeIndex ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( currentRange.isEqual( previousRange ) ) {\n\t\t\t\trangeIndexesToRemove.add( previousRangeIndex );\n\t\t\t} else if ( currentRange.isIntersecting( previousRange ) ) {\n\t\t\t\trangeIndexesToRemove.add( previousRangeIndex );\n\t\t\t\trangeIndexesToRemove.add( currentRangeIndex );\n\n\t\t\t\tconst mergedRange = currentRange.getJoined( previousRange );\n\t\t\t\trangesToMerge.push( mergedRange! );\n\t\t\t}\n\t\t}\n\n\t\tcurrentRangeIndex++;\n\t}\n\n\tconst nonIntersectingRanges = rangesToMerge.filter( ( _, index ) => !rangeIndexesToRemove.has( index ) );\n\n\treturn nonIntersectingRanges;\n}\n\n/**\n * Checks if node exists and if it's a selectable.\n */\nfunction isSelectable( node: Node, schema: Schema ) {\n\treturn node && schema.isSelectable( node );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/controller/editingcontroller\n */\n\nimport {\n\tCKEditorError,\n\tObservableMixin,\n\tenv,\n\ttype GetCallback\n} from '@ckeditor/ckeditor5-utils';\n\nimport RootEditableElement from '../view/rooteditableelement';\nimport View from '../view/view';\nimport Mapper from '../conversion/mapper';\nimport DowncastDispatcher, {\n\ttype DowncastInsertEvent,\n\ttype DowncastRemoveEvent,\n\ttype DowncastSelectionEvent\n} from '../conversion/downcastdispatcher';\nimport {\n\tclearAttributes,\n\tconvertCollapsedSelection,\n\tconvertRangeSelection,\n\tinsertAttributesAndChildren,\n\tinsertText,\n\tremove\n} from '../conversion/downcasthelpers';\n\nimport { convertSelectionChange } from '../conversion/upcasthelpers';\n\nimport { tryFixingRange } from '../model/utils/selection-post-fixer';\n\nimport type { default as Model, AfterChangesEvent, BeforeChangesEvent } from '../model/model';\nimport type ModelItem from '../model/item';\nimport type ModelText from '../model/text';\nimport type ModelTextProxy from '../model/textproxy';\nimport type Schema from '../model/schema';\nimport type { DocumentChangeEvent } from '../model/document';\nimport type { Marker } from '../model/markercollection';\nimport type { StylesProcessor } from '../view/stylesmap';\nimport type { ViewDocumentSelectionChangeEvent } from '../view/observer/selectionobserver';\nimport type { ViewDocumentInputEvent } from '../view/observer/inputobserver';\n\n// @if CK_DEBUG_ENGINE // const { dumpTrees, initDocumentDumping } = require( '../dev-utils/utils' );\n\n/**\n * A controller for the editing pipeline. The editing pipeline controls the {@link ~EditingController#model model} rendering,\n * including selection handling. It also creates the {@link ~EditingController#view view} which builds a\n * browser-independent virtualization over the DOM elements. The editing controller also attaches default converters.\n */\nexport default class EditingController extends ObservableMixin() {\n\t/**\n\t * Editor model.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * Editing view controller.\n\t */\n\tpublic readonly view: View;\n\n\t/**\n\t * A mapper that describes the model-view binding.\n\t */\n\tpublic readonly mapper: Mapper;\n\n\t/**\n\t * Downcast dispatcher that converts changes from the model to the {@link #view editing view}.\n\t */\n\tpublic readonly downcastDispatcher: DowncastDispatcher;\n\n\t/**\n\t * Creates an editing controller instance.\n\t *\n\t * @param model Editing model.\n\t * @param stylesProcessor The styles processor instance.\n\t */\n\tconstructor( model: Model, stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\tthis.model = model;\n\t\tthis.view = new View( stylesProcessor );\n\t\tthis.mapper = new Mapper();\n\n\t\tthis.downcastDispatcher = new DowncastDispatcher( {\n\t\t\tmapper: this.mapper,\n\t\t\tschema: model.schema\n\t\t} );\n\n\t\tconst doc = this.model.document;\n\t\tconst selection = doc.selection;\n\t\tconst markers = this.model.markers;\n\n\t\t// When plugins listen on model changes (on selection change, post fixers, etc.) and change the view as a result of\n\t\t// the model's change, they might trigger view rendering before the conversion is completed (e.g. before the selection\n\t\t// is converted). We disable rendering for the length of the outermost model change() block to prevent that.\n\t\t//\n\t\t// See https://github.com/ckeditor/ckeditor5-engine/issues/1528\n\t\tthis.listenTo<BeforeChangesEvent>( this.model, '_beforeChanges', () => {\n\t\t\tthis.view._disableRendering( true );\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.listenTo<AfterChangesEvent>( this.model, '_afterChanges', () => {\n\t\t\tthis.view._disableRendering( false );\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Whenever model document is changed, convert those changes to the view (using model.Document#differ).\n\t\t// Do it on 'low' priority, so changes are converted after other listeners did their job.\n\t\t// Also convert model selection.\n\t\tthis.listenTo<DocumentChangeEvent>( doc, 'change', () => {\n\t\t\tthis.view.change( writer => {\n\t\t\t\tthis.downcastDispatcher.convertChanges( doc.differ, markers, writer );\n\t\t\t\tthis.downcastDispatcher.convertSelection( selection, markers, writer );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\n\t\t// Convert selection from the view to the model when it changes in the view.\n\t\tthis.listenTo<ViewDocumentSelectionChangeEvent>( this.view.document, 'selectionChange',\n\t\t\tconvertSelectionChange( this.model, this.mapper )\n\t\t);\n\n\t\t// Fix `beforeinput` target ranges so that they map to the valid model ranges.\n\t\tthis.listenTo<ViewDocumentInputEvent>( this.view.document, 'beforeinput',\n\t\t\tfixTargetRanges( this.mapper, this.model.schema, this.view ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\n\t\t// Attach default model converters.\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent<ModelText | ModelTextProxy>>( 'insert:$text', insertText(), { priority: 'lowest' } );\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent>( 'insert', insertAttributesAndChildren(), { priority: 'lowest' } );\n\t\tthis.downcastDispatcher.on<DowncastRemoveEvent>( 'remove', remove(), { priority: 'low' } );\n\n\t\t// Attach default model selection converters.\n\t\tthis.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', clearAttributes(), { priority: 'high' } );\n\t\tthis.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', convertRangeSelection(), { priority: 'low' } );\n\t\tthis.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', convertCollapsedSelection(), { priority: 'low' } );\n\n\t\t// Binds {@link module:engine/view/document~Document#roots view roots collection} to\n\t\t// {@link module:engine/model/document~Document#roots model roots collection} so creating\n\t\t// model root automatically creates corresponding view root.\n\t\tthis.view.document.roots.bindTo( this.model.document.roots ).using( root => {\n\t\t\t// $graveyard is a special root that has no reflection in the view.\n\t\t\tif ( root.rootName == '$graveyard' ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tconst viewRoot = new RootEditableElement( this.view.document, root.name );\n\n\t\t\tviewRoot.rootName = root.rootName;\n\t\t\tthis.mapper.bindElements( root, viewRoot );\n\n\t\t\treturn viewRoot;\n\t\t} );\n\n\t\t// @if CK_DEBUG_ENGINE // initDocumentDumping( this.model.document );\n\t\t// @if CK_DEBUG_ENGINE // initDocumentDumping( this.view.document );\n\n\t\t// @if CK_DEBUG_ENGINE // dumpTrees( this.model.document, this.model.document.version );\n\t\t// @if CK_DEBUG_ENGINE // dumpTrees( this.view.document, this.model.document.version );\n\n\t\t// @if CK_DEBUG_ENGINE // this.model.document.on( 'change', () => {\n\t\t// @if CK_DEBUG_ENGINE //\tdumpTrees( this.view.document, this.model.document.version );\n\t\t// @if CK_DEBUG_ENGINE // }, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Removes all event listeners attached to the `EditingController`. Destroys all objects created\n\t * by `EditingController` that need to be destroyed.\n\t */\n\tpublic destroy(): void {\n\t\tthis.view.destroy();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Calling this method will refresh the marker by triggering the downcast conversion for it.\n\t *\n\t * Reconverting the marker is useful when you want to change its {@link module:engine/view/element~Element view element}\n\t * without changing any marker data. For instance:\n\t *\n\t * ```ts\n\t * let isCommentActive = false;\n\t *\n\t * model.conversion.markerToHighlight( {\n\t * \tmodel: 'comment',\n\t * \tview: data => {\n\t * \t\tconst classes = [ 'comment-marker' ];\n\t *\n\t * \t\tif ( isCommentActive ) {\n\t * \t\t\tclasses.push( 'comment-marker--active' );\n\t * \t\t}\n\t *\n\t * \t\treturn { classes };\n\t * \t}\n\t * } );\n\t *\n\t * // ...\n\t *\n\t * // Change the property that indicates if marker is displayed as active or not.\n\t * isCommentActive = true;\n\t *\n\t * // Reconverting will downcast and synchronize the marker with the new isCommentActive state value.\n\t * editor.editing.reconvertMarker( 'comment' );\n\t * ```\n\t *\n\t * **Note**: If you want to reconvert a model item, use {@link #reconvertItem} instead.\n\t *\n\t * @param markerOrName Name of a marker to update, or a marker instance.\n\t */\n\tpublic reconvertMarker( markerOrName: Marker | string ): void {\n\t\tconst markerName = typeof markerOrName == 'string' ? markerOrName : markerOrName.name;\n\t\tconst currentMarker = this.model.markers.get( markerName );\n\n\t\tif ( !currentMarker ) {\n\t\t\t/**\n\t\t\t * The marker with the provided name does not exist and cannot be reconverted.\n\t\t\t *\n\t\t\t * @error editingcontroller-reconvertmarker-marker-not-exist\n\t\t\t * @param {String} markerName The name of the reconverted marker.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'editingcontroller-reconvertmarker-marker-not-exist', this, { markerName } );\n\t\t}\n\n\t\tthis.model.change( () => {\n\t\t\tthis.model.markers._refresh( currentMarker );\n\t\t} );\n\t}\n\n\t/**\n\t * Calling this method will downcast a model item on demand (by requesting a refresh in the {@link module:engine/model/differ~Differ}).\n\t *\n\t * You can use it if you want the view representation of a specific item updated as a response to external modifications. For instance,\n\t * when the view structure depends not only on the associated model data but also on some external state.\n\t *\n\t * **Note**: If you want to reconvert a model marker, use {@link #reconvertMarker} instead.\n\t *\n\t * @param item Item to refresh.\n\t */\n\tpublic reconvertItem( item: ModelItem ): void {\n\t\tthis.model.change( () => {\n\t\t\tthis.model.document.differ._refreshItem( item );\n\t\t} );\n\t}\n}\n\n/**\n * Checks whether the target ranges provided by the `beforeInput` event can be properly mapped to model ranges and fixes them if needed.\n *\n * This is using the same logic as the selection post-fixer.\n */\nfunction fixTargetRanges( mapper: Mapper, schema: Schema, view: View ): GetCallback<ViewDocumentInputEvent> {\n\treturn ( evt, data ) => {\n\t\t// The Renderer is disabled while composing on non-android browsers, so we can't be sure that target ranges\n\t\t// could be properly mapped to view and model because the DOM and view tree drifted apart.\n\t\tif ( view.document.isComposing && !env.isAndroid ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( let i = 0; i < data.targetRanges.length; i++ ) {\n\t\t\tconst viewRange = data.targetRanges[ i ];\n\t\t\tconst modelRange = mapper.toModelRange( viewRange );\n\t\t\tconst correctedRange = tryFixingRange( modelRange, schema );\n\n\t\t\tif ( !correctedRange || correctedRange.isEqual( modelRange ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tdata.targetRanges[ i ] = mapper.toViewRange( correctedRange );\n\t\t}\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/viewconsumable\n */\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Element from '../view/element';\nimport type Node from '../view/node';\nimport type Text from '../view/text';\nimport type DocumentFragment from '../view/documentfragment';\nimport type { Match } from '../view/matcher';\n\nimport { isArray } from 'lodash-es';\n\n/**\n * Class used for handling consumption of view {@link module:engine/view/element~Element elements},\n * {@link module:engine/view/text~Text text nodes} and {@link module:engine/view/documentfragment~DocumentFragment document fragments}.\n * Element's name and its parts (attributes, classes and styles) can be consumed separately. Consuming an element's name\n * does not consume its attributes, classes and styles.\n * To add items for consumption use {@link module:engine/conversion/viewconsumable~ViewConsumable#add add method}.\n * To test items use {@link module:engine/conversion/viewconsumable~ViewConsumable#test test method}.\n * To consume items use {@link module:engine/conversion/viewconsumable~ViewConsumable#consume consume method}.\n * To revert already consumed items use {@link module:engine/conversion/viewconsumable~ViewConsumable#revert revert method}.\n *\n * ```ts\n * viewConsumable.add( element, { name: true } ); // Adds element's name as ready to be consumed.\n * viewConsumable.add( textNode ); // Adds text node for consumption.\n * viewConsumable.add( docFragment ); // Adds document fragment for consumption.\n * viewConsumable.test( element, { name: true }  ); // Tests if element's name can be consumed.\n * viewConsumable.test( textNode ); // Tests if text node can be consumed.\n * viewConsumable.test( docFragment ); // Tests if document fragment can be consumed.\n * viewConsumable.consume( element, { name: true }  ); // Consume element's name.\n * viewConsumable.consume( textNode ); // Consume text node.\n * viewConsumable.consume( docFragment ); // Consume document fragment.\n * viewConsumable.revert( element, { name: true }  ); // Revert already consumed element's name.\n * viewConsumable.revert( textNode ); // Revert already consumed text node.\n * viewConsumable.revert( docFragment ); // Revert already consumed document fragment.\n * ```\n */\nexport default class ViewConsumable {\n\t/**\n\t * Map of consumable elements. If {@link module:engine/view/element~Element element} is used as a key,\n\t * {@link module:engine/conversion/viewconsumable~ViewElementConsumables ViewElementConsumables} instance is stored as value.\n\t * For {@link module:engine/view/text~Text text nodes} and\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragments} boolean value is stored as value.\n\t */\n\tprivate _consumables = new Map<Node | DocumentFragment, ViewElementConsumables | boolean>();\n\n\t/**\n\t * Adds {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment} as ready to be consumed.\n\t *\n\t * ```ts\n\t * viewConsumable.add( textNode ); // Adds text node to consume.\n\t * viewConsumable.add( docFragment ); // Adds document fragment to consume.\n\t * ```\n\t *\n\t * See also: {@link #add:ELEMENT `add( element, consumables )`}.\n\t *\n\t * @label TEXT_OR_FRAGMENT\n\t */\n\tpublic add(\n\t\ttextOrDocumentFragment: Text | DocumentFragment\n\t): void;\n\n\t/**\n\t * Adds {@link module:engine/view/element~Element view element} as ready to be consumed.\n\t *\n\t * ```ts\n\t * viewConsumable.add( p, { name: true } ); // Adds element's name to consume.\n\t * viewConsumable.add( p, { attributes: 'name' } ); // Adds element's attribute.\n\t * viewConsumable.add( p, { classes: 'foobar' } ); // Adds element's class.\n\t * viewConsumable.add( p, { styles: 'color' } ); // Adds element's style\n\t * viewConsumable.add( p, { attributes: 'name', styles: 'color' } ); // Adds attribute and style.\n\t * viewConsumable.add( p, { classes: [ 'baz', 'bar' ] } ); // Multiple consumables can be provided.\n\t * ```\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `viewconsumable-invalid-attribute` when `class` or `style`\n\t * attribute is provided - it should be handled separately by providing actual style/class.\n\t *\n\t * ```ts\n\t * viewConsumable.add( p, { attributes: 'style' } ); // This call will throw an exception.\n\t * viewConsumable.add( p, { styles: 'color' } ); // This is properly handled style.\n\t * ```\n\t *\n\t * See also: {@link #add:TEXT_OR_FRAGMENT `add( textOrDocumentFragment )`}.\n\t *\n\t * @label ELEMENT\n\t * @param consumables Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param consumables.name If set to true element's name will be included.\n\t * @param consumables.attributes Attribute name or array of attribute names.\n\t * @param consumables.classes Class name or array of class names.\n\t * @param consumables.styles Style name or array of style names.\n\t */\n\tpublic add(\n\t\telement: Element,\n\t\tconsumables: Consumables\n\t): void;\n\n\tpublic add(\n\t\telement: Node | DocumentFragment,\n\t\tconsumables?: Consumables\n\t): void {\n\t\tlet elementConsumables: ViewElementConsumables;\n\n\t\t// For text nodes and document fragments just mark them as consumable.\n\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\tthis._consumables.set( element, true );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// For elements create new ViewElementConsumables or update already existing one.\n\t\tif ( !this._consumables.has( element ) ) {\n\t\t\telementConsumables = new ViewElementConsumables( element );\n\t\t\tthis._consumables.set( element, elementConsumables );\n\t\t} else {\n\t\t\telementConsumables = this._consumables.get( element ) as any;\n\t\t}\n\n\t\telementConsumables.add( consumables! );\n\t}\n\n\t/**\n\t * Tests if {@link module:engine/view/element~Element view element}, {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment} can be consumed.\n\t * It returns `true` when all items included in method's call can be consumed. Returns `false` when\n\t * first already consumed item is found and `null` when first non-consumable item is found.\n\t *\n\t * ```ts\n\t * viewConsumable.test( p, { name: true } ); // Tests element's name.\n\t * viewConsumable.test( p, { attributes: 'name' } ); // Tests attribute.\n\t * viewConsumable.test( p, { classes: 'foobar' } ); // Tests class.\n\t * viewConsumable.test( p, { styles: 'color' } ); // Tests style.\n\t * viewConsumable.test( p, { attributes: 'name', styles: 'color' } ); // Tests attribute and style.\n\t * viewConsumable.test( p, { classes: [ 'baz', 'bar' ] } ); // Multiple consumables can be tested.\n\t * viewConsumable.test( textNode ); // Tests text node.\n\t * viewConsumable.test( docFragment ); // Tests document fragment.\n\t * ```\n\t *\n\t * Testing classes and styles as attribute will test if all added classes/styles can be consumed.\n\t *\n\t * ```ts\n\t * viewConsumable.test( p, { attributes: 'class' } ); // Tests if all added classes can be consumed.\n\t * viewConsumable.test( p, { attributes: 'style' } ); // Tests if all added styles can be consumed.\n\t * ```\n\t *\n\t * @param consumables Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param consumables.name If set to true element's name will be included.\n\t * @param consumables.attributes Attribute name or array of attribute names.\n\t * @param consumables.classes Class name or array of class names.\n\t * @param consumables.styles Style name or array of style names.\n\t * @returns Returns `true` when all items included in method's call can be consumed. Returns `false`\n\t * when first already consumed item is found and `null` when first non-consumable item is found.\n\t */\n\tpublic test( element: Node | DocumentFragment, consumables?: Consumables | Match ): boolean | null {\n\t\tconst elementConsumables = this._consumables.get( element );\n\n\t\tif ( elementConsumables === undefined ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// For text nodes and document fragments return stored boolean value.\n\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\treturn elementConsumables as boolean;\n\t\t}\n\n\t\t// For elements test consumables object.\n\t\treturn ( elementConsumables as ViewElementConsumables ).test( consumables! );\n\t}\n\n\t/**\n\t * Consumes {@link module:engine/view/element~Element view element}, {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment}.\n\t * It returns `true` when all items included in method's call can be consumed, otherwise returns `false`.\n\t *\n\t * ```ts\n\t * viewConsumable.consume( p, { name: true } ); // Consumes element's name.\n\t * viewConsumable.consume( p, { attributes: 'name' } ); // Consumes element's attribute.\n\t * viewConsumable.consume( p, { classes: 'foobar' } ); // Consumes element's class.\n\t * viewConsumable.consume( p, { styles: 'color' } ); // Consumes element's style.\n\t * viewConsumable.consume( p, { attributes: 'name', styles: 'color' } ); // Consumes attribute and style.\n\t * viewConsumable.consume( p, { classes: [ 'baz', 'bar' ] } ); // Multiple consumables can be consumed.\n\t * viewConsumable.consume( textNode ); // Consumes text node.\n\t * viewConsumable.consume( docFragment ); // Consumes document fragment.\n\t * ```\n\t *\n\t * Consuming classes and styles as attribute will test if all added classes/styles can be consumed.\n\t *\n\t * ```ts\n\t * viewConsumable.consume( p, { attributes: 'class' } ); // Consume only if all added classes can be consumed.\n\t * viewConsumable.consume( p, { attributes: 'style' } ); // Consume only if all added styles can be consumed.\n\t * ```\n\t *\n\t * @param consumables Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param consumables.name If set to true element's name will be included.\n\t * @param consumables.attributes Attribute name or array of attribute names.\n\t * @param consumables.classes Class name or array of class names.\n\t * @param consumables.styles Style name or array of style names.\n\t * @returns Returns `true` when all items included in method's call can be consumed,\n\t * otherwise returns `false`.\n\t */\n\tpublic consume( element: Node | DocumentFragment, consumables?: Consumables | Match ): boolean {\n\t\tif ( this.test( element, consumables ) ) {\n\t\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\t\t// For text nodes and document fragments set value to false.\n\t\t\t\tthis._consumables.set( element, false );\n\t\t\t} else {\n\t\t\t\t// For elements - consume consumables object.\n\t\t\t\t( this._consumables.get( element ) as ViewElementConsumables ).consume( consumables! );\n\t\t\t}\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Reverts {@link module:engine/view/element~Element view element}, {@link module:engine/view/text~Text text node} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment document fragment} so they can be consumed once again.\n\t * Method does not revert items that were never previously added for consumption, even if they are included in\n\t * method's call.\n\t *\n\t * ```ts\n\t * viewConsumable.revert( p, { name: true } ); // Reverts element's name.\n\t * viewConsumable.revert( p, { attributes: 'name' } ); // Reverts element's attribute.\n\t * viewConsumable.revert( p, { classes: 'foobar' } ); // Reverts element's class.\n\t * viewConsumable.revert( p, { styles: 'color' } ); // Reverts element's style.\n\t * viewConsumable.revert( p, { attributes: 'name', styles: 'color' } ); // Reverts attribute and style.\n\t * viewConsumable.revert( p, { classes: [ 'baz', 'bar' ] } ); // Multiple names can be reverted.\n\t * viewConsumable.revert( textNode ); // Reverts text node.\n\t * viewConsumable.revert( docFragment ); // Reverts document fragment.\n\t * ```\n\t *\n\t * Reverting classes and styles as attribute will revert all classes/styles that were previously added for\n\t * consumption.\n\t *\n\t * ```ts\n\t * viewConsumable.revert( p, { attributes: 'class' } ); // Reverts all classes added for consumption.\n\t * viewConsumable.revert( p, { attributes: 'style' } ); // Reverts all styles added for consumption.\n\t * ```\n\t *\n\t * @param consumables Used only if first parameter is {@link module:engine/view/element~Element view element} instance.\n\t * @param consumables.name If set to true element's name will be included.\n\t * @param consumables.attributes Attribute name or array of attribute names.\n\t * @param consumables.classes Class name or array of class names.\n\t * @param consumables.styles Style name or array of style names.\n\t */\n\tpublic revert( element: Node, consumables: Consumables ): void {\n\t\tconst elementConsumables = this._consumables.get( element );\n\n\t\tif ( elementConsumables !== undefined ) {\n\t\t\tif ( element.is( '$text' ) || element.is( 'documentFragment' ) ) {\n\t\t\t\t// For text nodes and document fragments - set consumable to true.\n\t\t\t\tthis._consumables.set( element, true );\n\t\t\t} else {\n\t\t\t\t// For elements - revert items from consumables object.\n\t\t\t\t( elementConsumables as ViewElementConsumables ).revert( consumables );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Creates consumable object from {@link module:engine/view/element~Element view element}. Consumable object will include\n\t * element's name and all its attributes, classes and styles.\n\t */\n\tpublic static consumablesFromElement( element: Element ): Consumables & { element: Element } {\n\t\tconst consumables = {\n\t\t\telement,\n\t\t\tname: true,\n\t\t\tattributes: [] as Array<string>,\n\t\t\tclasses: [] as Array<string>,\n\t\t\tstyles: [] as Array<string>\n\t\t};\n\n\t\tconst attributes = element.getAttributeKeys();\n\n\t\tfor ( const attribute of attributes ) {\n\t\t\t// Skip classes and styles - will be added separately.\n\t\t\tif ( attribute == 'style' || attribute == 'class' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconsumables.attributes.push( attribute );\n\t\t}\n\n\t\tconst classes = element.getClassNames();\n\n\t\tfor ( const className of classes ) {\n\t\t\tconsumables.classes.push( className );\n\t\t}\n\n\t\tconst styles = element.getStyleNames();\n\n\t\tfor ( const style of styles ) {\n\t\t\tconsumables.styles.push( style );\n\t\t}\n\n\t\treturn consumables;\n\t}\n\n\t/**\n\t * Creates {@link module:engine/conversion/viewconsumable~ViewConsumable ViewConsumable} instance from\n\t * {@link module:engine/view/node~Node node} or {@link module:engine/view/documentfragment~DocumentFragment document fragment}.\n\t * Instance will contain all elements, child nodes, attributes, styles and classes added for consumption.\n\t *\n\t * @param from View node or document fragment from which `ViewConsumable` will be created.\n\t * @param instance If provided, given `ViewConsumable` instance will be used\n\t * to add all consumables. It will be returned instead of a new instance.\n\t */\n\tpublic static createFrom( from: Node | DocumentFragment, instance?: ViewConsumable ): ViewConsumable {\n\t\tif ( !instance ) {\n\t\t\tinstance = new ViewConsumable();\n\t\t}\n\n\t\tif ( from.is( '$text' ) ) {\n\t\t\tinstance.add( from );\n\n\t\t\treturn instance;\n\t\t}\n\n\t\t// Add `from` itself, if it is an element.\n\t\tif ( from.is( 'element' ) ) {\n\t\t\tinstance.add( from, ViewConsumable.consumablesFromElement( from ) );\n\t\t}\n\n\t\tif ( from.is( 'documentFragment' ) ) {\n\t\t\tinstance.add( from );\n\t\t}\n\n\t\tfor ( const child of ( from as Element | DocumentFragment ).getChildren() ) {\n\t\t\tinstance = ViewConsumable.createFrom( child, instance );\n\t\t}\n\n\t\treturn instance;\n\t}\n}\n\nexport interface Consumables {\n\n\t/**\n\t * If set to true element's name will be included.\n\t */\n\tname?: boolean;\n\n\t/**\n\t * Attribute name or array of attribute names.\n\t */\n\tattributes?: string | Array<string>;\n\n\t/**\n\t * Class name or array of class names.\n\t */\n\tclasses?: string | Array<string>;\n\n\t/**\n\t * Style name or array of style names.\n\t */\n\tstyles?: string | Array<string>;\n}\n\nconst CONSUMABLE_TYPES = [ 'attributes', 'classes', 'styles' ] as const;\n\ntype ConsumableType = ( typeof CONSUMABLE_TYPES )[ number ];\n\n/**\n * This is a private helper-class for {@link module:engine/conversion/viewconsumable~ViewConsumable}.\n * It represents and manipulates consumable parts of a single {@link module:engine/view/element~Element}.\n */\nexport class ViewElementConsumables {\n\tpublic readonly element: Node | DocumentFragment;\n\n\t/**\n\t * Flag indicating if name of the element can be consumed.\n\t */\n\tprivate _canConsumeName: boolean | null;\n\n\t/**\n\t * Contains maps of element's consumables: attributes, classes and styles.\n\t */\n\tprivate readonly _consumables: Record<ConsumableType, Map<string, boolean>>;\n\n\t/**\n\t * Creates ViewElementConsumables instance.\n\t *\n\t * @param from View node or document fragment from which `ViewElementConsumables` is being created.\n\t */\n\tconstructor( from: Node | DocumentFragment ) {\n\t\tthis.element = from;\n\t\tthis._canConsumeName = null;\n\t\tthis._consumables = {\n\t\t\tattributes: new Map(),\n\t\t\tstyles: new Map(),\n\t\t\tclasses: new Map()\n\t\t};\n\t}\n\n\t/**\n\t * Adds consumable parts of the {@link module:engine/view/element~Element view element}.\n\t * Element's name itself can be marked to be consumed (when element's name is consumed its attributes, classes and\n\t * styles still could be consumed):\n\t *\n\t * ```ts\n\t * consumables.add( { name: true } );\n\t * ```\n\t *\n\t * Attributes classes and styles:\n\t *\n\t * ```ts\n\t * consumables.add( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t * consumables.add( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t * ```\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `viewconsumable-invalid-attribute` when `class` or `style`\n\t * attribute is provided - it should be handled separately by providing `style` and `class` in consumables object.\n\t *\n\t * @param consumables Object describing which parts of the element can be consumed.\n\t * @param consumables.name If set to `true` element's name will be added as consumable.\n\t * @param consumables.attributes Attribute name or array of attribute names to add as consumable.\n\t * @param consumables.classes Class name or array of class names to add as consumable.\n\t * @param consumables.styles Style name or array of style names to add as consumable.\n\t */\n\tpublic add( consumables: Consumables ): void {\n\t\tif ( consumables.name ) {\n\t\t\tthis._canConsumeName = true;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tthis._add( type, consumables[ type ]! );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Tests if parts of the {@link module:engine/view/node~Node view node} can be consumed.\n\t *\n\t * Element's name can be tested:\n\t *\n\t * ```ts\n\t * consumables.test( { name: true } );\n\t * ```\n\t *\n\t * Attributes classes and styles:\n\t *\n\t * ```ts\n\t * consumables.test( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t * consumables.test( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t * ```\n\t *\n\t * @param consumables Object describing which parts of the element should be tested.\n\t * @param consumables.name If set to `true` element's name will be tested.\n\t * @param consumables.attributes Attribute name or array of attribute names to test.\n\t * @param consumables.classes Class name or array of class names to test.\n\t * @param consumables.styles Style name or array of style names to test.\n\t * @returns `true` when all tested items can be consumed, `null` when even one of the items\n\t * was never marked for consumption and `false` when even one of the items was already consumed.\n\t */\n\tpublic test( consumables: Consumables | Match ): boolean | null {\n\t\t// Check if name can be consumed.\n\t\tif ( consumables.name && !this._canConsumeName ) {\n\t\t\treturn this._canConsumeName;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tconst value = this._test( type, consumables[ type ]! );\n\n\t\t\t\tif ( value !== true ) {\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Return true only if all can be consumed.\n\t\treturn true;\n\t}\n\n\t/**\n\t * Consumes parts of {@link module:engine/view/element~Element view element}. This function does not check if consumable item\n\t * is already consumed - it consumes all consumable items provided.\n\t * Element's name can be consumed:\n\t *\n\t * ```ts\n\t * consumables.consume( { name: true } );\n\t * ```\n\t *\n\t * Attributes classes and styles:\n\t *\n\t * ```ts\n\t * consumables.consume( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t * consumables.consume( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t * ```\n\t *\n\t * @param consumables Object describing which parts of the element should be consumed.\n\t * @param consumables.name If set to `true` element's name will be consumed.\n\t * @param consumables.attributes Attribute name or array of attribute names to consume.\n\t * @param consumables.classes Class name or array of class names to consume.\n\t * @param consumables.styles Style name or array of style names to consume.\n\t */\n\tpublic consume( consumables: Consumables | Match ): void {\n\t\tif ( consumables.name ) {\n\t\t\tthis._canConsumeName = false;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tthis._consume( type, consumables[ type ]! );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Revert already consumed parts of {@link module:engine/view/element~Element view Element}, so they can be consumed once again.\n\t * Element's name can be reverted:\n\t *\n\t * ```ts\n\t * consumables.revert( { name: true } );\n\t * ```\n\t *\n\t * Attributes classes and styles:\n\t *\n\t * ```ts\n\t * consumables.revert( { attributes: 'title', classes: 'foo', styles: 'color' } );\n\t * consumables.revert( { attributes: [ 'title', 'name' ], classes: [ 'foo', 'bar' ] );\n\t * ```\n\t *\n\t * @param consumables Object describing which parts of the element should be reverted.\n\t * @param consumables.name If set to `true` element's name will be reverted.\n\t * @param consumables.attributes Attribute name or array of attribute names to revert.\n\t * @param consumables.classes Class name or array of class names to revert.\n\t * @param consumables.styles Style name or array of style names to revert.\n\t */\n\tpublic revert( consumables: Consumables ): void {\n\t\tif ( consumables.name ) {\n\t\t\tthis._canConsumeName = true;\n\t\t}\n\n\t\tfor ( const type of CONSUMABLE_TYPES ) {\n\t\t\tif ( type in consumables ) {\n\t\t\t\tthis._revert( type, consumables[ type ]! );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Helper method that adds consumables of a given type: attribute, class or style.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `viewconsumable-invalid-attribute` when `class` or `style`\n\t * type is provided - it should be handled separately by providing actual style/class type.\n\t *\n\t * @param type Type of the consumable item: `attributes`, `classes` or `styles`.\n\t * @param item Consumable item or array of items.\n\t */\n\tprivate _add( type: ConsumableType, item: string | Array<string> ) {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\t/**\n\t\t\t\t * Class and style attributes should be handled separately in\n\t\t\t\t * {@link module:engine/conversion/viewconsumable~ViewConsumable#add `ViewConsumable#add()`}.\n\t\t\t\t *\n\t\t\t\t * What you have done is trying to use:\n\t\t\t\t *\n\t\t\t\t *\t\tconsumables.add( { attributes: [ 'class', 'style' ] } );\n\t\t\t\t *\n\t\t\t\t * While each class and style should be registered separately:\n\t\t\t\t *\n\t\t\t\t *\t\tconsumables.add( { classes: 'some-class', styles: 'font-weight' } );\n\t\t\t\t *\n\t\t\t\t * @error viewconsumable-invalid-attribute\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'viewconsumable-invalid-attribute', this );\n\t\t\t}\n\n\t\t\tconsumables.set( name, true );\n\n\t\t\tif ( type === 'styles' ) {\n\t\t\t\tfor ( const alsoName of this.element.document.stylesProcessor.getRelatedStyles( name ) ) {\n\t\t\t\t\tconsumables.set( alsoName, true );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Helper method that tests consumables of a given type: attribute, class or style.\n\t *\n\t * @param type Type of the consumable item: `attributes`, `classes` or `styles`.\n\t * @param item Consumable item or array of items.\n\t * @returns Returns `true` if all items can be consumed, `null` when one of the items cannot be\n\t * consumed and `false` when one of the items is already consumed.\n\t */\n\tprivate _test( type: ConsumableType, item: string | Array<string> ): boolean | null {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\tconst consumableName = name == 'class' ? 'classes' : 'styles';\n\n\t\t\t\t// Check all classes/styles if class/style attribute is tested.\n\t\t\t\tconst value = this._test( consumableName, [ ...this._consumables[ consumableName ].keys() ] );\n\n\t\t\t\tif ( value !== true ) {\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst value = consumables.get( name );\n\t\t\t\t// Return null if attribute is not found.\n\t\t\t\tif ( value === undefined ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tif ( !value ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Helper method that consumes items of a given type: attribute, class or style.\n\t *\n\t * @param type Type of the consumable item: `attributes`, `classes` or `styles`.\n\t * @param item Consumable item or array of items.\n\t */\n\tprivate _consume( type: ConsumableType, item: string | Array<string> ) {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\tconst consumableName = name == 'class' ? 'classes' : 'styles';\n\n\t\t\t\t// If class or style is provided for consumption - consume them all.\n\t\t\t\tthis._consume( consumableName, [ ...this._consumables[ consumableName ].keys() ] );\n\t\t\t} else {\n\t\t\t\tconsumables.set( name, false );\n\n\t\t\t\tif ( type == 'styles' ) {\n\t\t\t\t\tfor ( const toConsume of this.element.document.stylesProcessor.getRelatedStyles( name ) ) {\n\t\t\t\t\t\tconsumables.set( toConsume, false );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Helper method that reverts items of a given type: attribute, class or style.\n\t *\n\t * @param type Type of the consumable item: `attributes`, `classes` or , `styles`.\n\t * @param item Consumable item or array of items.\n\t */\n\tprivate _revert( type: ConsumableType, item: string | Array<string> ) {\n\t\tconst items = isArray( item ) ? item : [ item ];\n\t\tconst consumables = this._consumables[ type ];\n\n\t\tfor ( const name of items ) {\n\t\t\tif ( type === 'attributes' && ( name === 'class' || name === 'style' ) ) {\n\t\t\t\tconst consumableName = name == 'class' ? 'classes' : 'styles';\n\n\t\t\t\t// If class or style is provided for reverting - revert them all.\n\t\t\t\tthis._revert( consumableName, [ ...this._consumables[ consumableName ].keys() ] );\n\t\t\t} else {\n\t\t\t\tconst value = consumables.get( name );\n\n\t\t\t\tif ( value === false ) {\n\t\t\t\t\tconsumables.set( name, true );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/schema\n */\n\nimport Element from './element';\nimport Position from './position';\nimport Range from './range';\nimport Text from './text';\nimport TreeWalker from './treewalker';\n\nimport type DocumentFragment from './documentfragment';\nimport type DocumentSelection from './documentselection';\nimport type Item from './item';\nimport type Node from './node';\nimport type Selection from './selection';\nimport type Writer from './writer';\n\nimport { CKEditorError, ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The model's schema. It defines the allowed and disallowed structures of nodes as well as nodes' attributes.\n * The schema is usually defined by the features and based on them, the editing framework and features\n * make decisions on how to change and process the model.\n *\n * The instance of schema is available in {@link module:engine/model/model~Model#schema `editor.model.schema`}.\n *\n * Read more about the schema in:\n *\n * * The {@glink framework/architecture/editing-engine#schema schema section} of the\n * {@glink framework/architecture/editing-engine Introduction to the Editing engine architecture} guide.\n * * The {@glink framework/deep-dive/schema Schema deep-dive} guide.\n */\nexport default class Schema extends ObservableMixin() {\n\tprivate readonly _sourceDefinitions: Record<string, Array<SchemaItemDefinition>> = {};\n\n\t/**\n\t * A dictionary containing attribute properties.\n\t */\n\tprivate readonly _attributeProperties: Record<string, AttributeProperties> = {};\n\tprivate _compiledDefinitions?: Record<string, SchemaCompiledItemDefinition> | null;\n\n\t/**\n\t * Creates a schema instance.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\tthis.decorate( 'checkChild' );\n\t\tthis.decorate( 'checkAttribute' );\n\n\t\tthis.on( 'checkAttribute', ( evt, args ) => {\n\t\t\targs[ 0 ] = new SchemaContext( args[ 0 ] );\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.on( 'checkChild', ( evt, args ) => {\n\t\t\targs[ 0 ] = new SchemaContext( args[ 0 ] );\n\t\t\targs[ 1 ] = this.getDefinition( args[ 1 ] );\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Registers a schema item. Can only be called once for every item name.\n\t *\n\t * ```ts\n\t * schema.register( 'paragraph', {\n\t * \tinheritAllFrom: '$block'\n\t * } );\n\t * ```\n\t */\n\tpublic register( itemName: string, definition?: SchemaItemDefinition ): void {\n\t\tif ( this._sourceDefinitions[ itemName ] ) {\n\t\t\t/**\n\t\t\t * A single item cannot be registered twice in the schema.\n\t\t\t *\n\t\t\t * This situation may happen when:\n\t\t\t *\n\t\t\t * * Two or more plugins called {@link module:engine/model/schema~Schema#register `register()`} with the same name.\n\t\t\t * This will usually mean that there is a collision between plugins which try to use the same element in the model.\n\t\t\t * Unfortunately, the only way to solve this is by modifying one of these plugins to use a unique model element name.\n\t\t\t * * A single plugin was loaded twice. This happens when it is installed by npm/yarn in two versions\n\t\t\t * and usually means one or more of the following issues:\n\t\t\t *     * a version mismatch (two of your dependencies require two different versions of this plugin),\n\t\t\t *     * incorrect imports (this plugin is somehow imported twice in a way which confuses webpack),\n\t\t\t *     * mess in `node_modules/` (`rm -rf node_modules/` may help).\n\t\t\t *\n\t\t\t * **Note:** Check the logged `itemName` to better understand which plugin was duplicated/conflicting.\n\t\t\t *\n\t\t\t * @param itemName The name of the model element that is being registered twice.\n\t\t\t * @error schema-cannot-register-item-twice\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'schema-cannot-register-item-twice',\n\t\t\t\tthis,\n\t\t\t\t{\n\t\t\t\t\titemName\n\t\t\t\t}\n\t\t\t);\n\t\t}\n\n\t\tthis._sourceDefinitions[ itemName ] = [\n\t\t\tObject.assign( {}, definition )\n\t\t];\n\n\t\tthis._clearCache();\n\t}\n\n\t/**\n\t * Extends a {@link #register registered} item's definition.\n\t *\n\t * Extending properties such as `allowIn` will add more items to the existing properties,\n\t * while redefining properties such as `isBlock` will override the previously defined ones.\n\t *\n\t * ```ts\n\t * schema.register( 'foo', {\n\t * \tallowIn: '$root',\n\t * \tisBlock: true;\n\t * } );\n\t * schema.extend( 'foo', {\n\t * \tallowIn: 'blockQuote',\n\t * \tisBlock: false\n\t * } );\n\t *\n\t * schema.getDefinition( 'foo' );\n\t * //\t{\n\t * //\t\tallowIn: [ '$root', 'blockQuote' ],\n\t * // \t\tisBlock: false\n\t * //\t}\n\t * ```\n\t */\n\tpublic extend( itemName: string, definition: SchemaItemDefinition ): void {\n\t\tif ( !this._sourceDefinitions[ itemName ] ) {\n\t\t\t/**\n\t\t\t * Cannot extend an item which was not registered yet.\n\t\t\t *\n\t\t\t * This error happens when a plugin tries to extend the schema definition of an item which was not\n\t\t\t * {@link module:engine/model/schema~Schema#register registered} yet.\n\t\t\t *\n\t\t\t * @param itemName The name of the model element which is being extended.\n\t\t\t * @error schema-cannot-extend-missing-item\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'schema-cannot-extend-missing-item', this, {\n\t\t\t\titemName\n\t\t\t} );\n\t\t}\n\n\t\tthis._sourceDefinitions[ itemName ].push( Object.assign( {}, definition ) );\n\n\t\tthis._clearCache();\n\t}\n\n\t/**\n\t * Returns data of all registered items.\n\t *\n\t * This method should normally be used for reflection purposes (e.g. defining a clone of a certain element,\n\t * checking a list of all block elements, etc).\n\t * Use specific methods (such as {@link #checkChild `checkChild()`} or {@link #isLimit `isLimit()`})\n\t * in other cases.\n\t */\n\tpublic getDefinitions(): Record<string, SchemaCompiledItemDefinition> {\n\t\tif ( !this._compiledDefinitions ) {\n\t\t\tthis._compile();\n\t\t}\n\n\t\treturn this._compiledDefinitions!;\n\t}\n\n\t/**\n\t * Returns a definition of the given item or `undefined` if an item is not registered.\n\t *\n\t * This method should normally be used for reflection purposes (e.g. defining a clone of a certain element,\n\t * checking a list of all block elements, etc).\n\t * Use specific methods (such as {@link #checkChild `checkChild()`} or {@link #isLimit `isLimit()`})\n\t * in other cases.\n\t */\n\tpublic getDefinition( item: string | Item | DocumentFragment | SchemaContextItem ): SchemaCompiledItemDefinition | undefined {\n\t\tlet itemName: string;\n\n\t\tif ( typeof item == 'string' ) {\n\t\t\titemName = item;\n\t\t} else if ( 'is' in item && ( item.is( '$text' ) || item.is( '$textProxy' ) ) ) {\n\t\t\titemName = '$text';\n\t\t}\n\t\t// Element or module:engine/model/schema~SchemaContextItem.\n\t\telse {\n\t\t\titemName = ( item as any ).name;\n\t\t}\n\n\t\treturn this.getDefinitions()[ itemName ];\n\t}\n\n\t/**\n\t * Returns `true` if the given item is registered in the schema.\n\t *\n\t * ```ts\n\t * schema.isRegistered( 'paragraph' ); // -> true\n\t * schema.isRegistered( editor.model.document.getRoot() ); // -> true\n\t * schema.isRegistered( 'foo' ); // -> false\n\t * ```\n\t */\n\tpublic isRegistered( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\treturn !!this.getDefinition( item );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * a block by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isBlock` property.\n\t *\n\t * ```ts\n\t * schema.isBlock( 'paragraph' ); // -> true\n\t * schema.isBlock( '$root' ); // -> false\n\t *\n\t * const paragraphElement = writer.createElement( 'paragraph' );\n\t * schema.isBlock( paragraphElement ); // -> true\n\t * ```\n\t *\n\t * See the {@glink framework/deep-dive/schema#block-elements Block elements} section of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide for more details.\n\t */\n\tpublic isBlock( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\treturn !!( def && def.isBlock );\n\t}\n\n\t/**\n\t * Returns `true` if the given item should be treated as a limit element.\n\t *\n\t * It considers an item to be a limit element if its\n\t * {@link module:engine/model/schema~SchemaItemDefinition}'s\n\t * {@link module:engine/model/schema~SchemaItemDefinition#isLimit `isLimit`} or\n\t * {@link module:engine/model/schema~SchemaItemDefinition#isObject `isObject`} property\n\t * was set to `true`.\n\t *\n\t * ```ts\n\t * schema.isLimit( 'paragraph' ); // -> false\n\t * schema.isLimit( '$root' ); // -> true\n\t * schema.isLimit( editor.model.document.getRoot() ); // -> true\n\t * schema.isLimit( 'imageBlock' ); // -> true\n\t * ```\n\t *\n\t * See the {@glink framework/deep-dive/schema#limit-elements Limit elements} section of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide for more details.\n\t */\n\tpublic isLimit( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !!( def.isLimit || def.isObject );\n\t}\n\n\t/**\n\t * Returns `true` if the given item should be treated as an object element.\n\t *\n\t * It considers an item to be an object element if its\n\t * {@link module:engine/model/schema~SchemaItemDefinition}'s\n\t * {@link module:engine/model/schema~SchemaItemDefinition#isObject `isObject`} property\n\t * was set to `true`.\n\t *\n\t * ```ts\n\t * schema.isObject( 'paragraph' ); // -> false\n\t * schema.isObject( 'imageBlock' ); // -> true\n\t *\n\t * const imageElement = writer.createElement( 'imageBlock' );\n\t * schema.isObject( imageElement ); // -> true\n\t * ```\n\t *\n\t * See the {@glink framework/deep-dive/schema#object-elements Object elements} section of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide for more details.\n\t */\n\tpublic isObject( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Note: Check out the implementation of #isLimit(), #isSelectable(), and #isContent()\n\t\t// to understand why these three constitute an object.\n\t\treturn !!( def.isObject || ( def.isLimit && def.isSelectable && def.isContent ) );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * an inline element by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isInline` property.\n\t *\n\t * ```ts\n\t * schema.isInline( 'paragraph' ); // -> false\n\t * schema.isInline( 'softBreak' ); // -> true\n\t *\n\t * const text = writer.createText( 'foo' );\n\t * schema.isInline( text ); // -> true\n\t * ```\n\t *\n\t * See the {@glink framework/deep-dive/schema#inline-elements Inline elements} section of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide for more details.\n\t */\n\tpublic isInline( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\treturn !!( def && def.isInline );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * a selectable element by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isSelectable` property.\n\t *\n\t * ```ts\n\t * schema.isSelectable( 'paragraph' ); // -> false\n\t * schema.isSelectable( 'heading1' ); // -> false\n\t * schema.isSelectable( 'imageBlock' ); // -> true\n\t * schema.isSelectable( 'tableCell' ); // -> true\n\t *\n\t * const text = writer.createText( 'foo' );\n\t * schema.isSelectable( text ); // -> false\n\t * ```\n\t *\n\t * See the {@glink framework/deep-dive/schema#selectable-elements Selectable elements section} of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide for more details.\n\t */\n\tpublic isSelectable( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !!( def.isSelectable || def.isObject );\n\t}\n\n\t/**\n\t * Returns `true` if the given item is defined to be\n\t * a content by the {@link module:engine/model/schema~SchemaItemDefinition}'s `isContent` property.\n\t *\n\t * ```ts\n\t * schema.isContent( 'paragraph' ); // -> false\n\t * schema.isContent( 'heading1' ); // -> false\n\t * schema.isContent( 'imageBlock' ); // -> true\n\t * schema.isContent( 'horizontalLine' ); // -> true\n\t *\n\t * const text = writer.createText( 'foo' );\n\t * schema.isContent( text ); // -> true\n\t * ```\n\t *\n\t * See the {@glink framework/deep-dive/schema#content-elements Content elements section} of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide for more details.\n\t */\n\tpublic isContent( item: string | Item | DocumentFragment | SchemaContextItem ): boolean {\n\t\tconst def = this.getDefinition( item );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn !!( def.isContent || def.isObject );\n\t}\n\n\t/**\n\t * Checks whether the given node (`child`) can be a child of the given context.\n\t *\n\t * ```ts\n\t * schema.checkChild( model.document.getRoot(), paragraph ); // -> false\n\t *\n\t * schema.register( 'paragraph', {\n\t * \tallowIn: '$root'\n\t * } );\n\t * schema.checkChild( model.document.getRoot(), paragraph ); // -> true\n\t * ```\n\t *\n\t * Note: When verifying whether the given node can be a child of the given context, the\n\t * schema also verifies the entire context &mdash; from its root to its last element. Therefore, it is possible\n\t * for `checkChild()` to return `false` even though the context's last element can contain the checked child.\n\t * It happens if one of the context's elements does not allow its child.\n\t *\n\t * @fires checkChild\n\t * @param context The context in which the child will be checked.\n\t * @param def The child to check.\n\t */\n\tpublic checkChild( context: SchemaContextDefinition, def: string | Node | DocumentFragment ): boolean {\n\t\t// Note: context and child are already normalized here to a SchemaContext and SchemaCompiledItemDefinition.\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn this._checkContextMatch( def as any, context as any );\n\t}\n\n\t/**\n\t * Checks whether the given attribute can be applied in the given context (on the last\n\t * item of the context).\n\t *\n\t * ```ts\n\t * schema.checkAttribute( textNode, 'bold' ); // -> false\n\t *\n\t * schema.extend( '$text', {\n\t * \tallowAttributes: 'bold'\n\t * } );\n\t * schema.checkAttribute( textNode, 'bold' ); // -> true\n\t * ```\n\t *\n\t * @fires checkAttribute\n\t * @param context The context in which the attribute will be checked.\n\t */\n\tpublic checkAttribute( context: SchemaContextDefinition, attributeName: string ): boolean {\n\t\tconst def = this.getDefinition( ( context as any ).last );\n\n\t\tif ( !def ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn def.allowAttributes.includes( attributeName );\n\t}\n\n\t/**\n\t * Checks whether the given element (`elementToMerge`) can be merged with the specified base element (`positionOrBaseElement`).\n\t *\n\t * In other words &mdash; whether `elementToMerge`'s children {@link #checkChild are allowed} in the `positionOrBaseElement`.\n\t *\n\t * This check ensures that elements merged with {@link module:engine/model/writer~Writer#merge `Writer#merge()`}\n\t * will be valid.\n\t *\n\t * Instead of elements, you can pass the instance of the {@link module:engine/model/position~Position} class as the\n\t * `positionOrBaseElement`. It means that the elements before and after the position will be checked whether they can be merged.\n\t *\n\t * @param positionOrBaseElement The position or base element to which the `elementToMerge` will be merged.\n\t * @param elementToMerge The element to merge. Required if `positionOrBaseElement` is an element.\n\t */\n\tpublic checkMerge( positionOrBaseElement: Position | Element, elementToMerge: Element ): boolean {\n\t\tif ( positionOrBaseElement instanceof Position ) {\n\t\t\tconst nodeBefore = positionOrBaseElement.nodeBefore;\n\t\t\tconst nodeAfter = positionOrBaseElement.nodeAfter;\n\n\t\t\tif ( !( nodeBefore instanceof Element ) ) {\n\t\t\t\t/**\n\t\t\t\t * The node before the merge position must be an element.\n\t\t\t\t *\n\t\t\t\t * @error schema-check-merge-no-element-before\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'schema-check-merge-no-element-before',\n\t\t\t\t\tthis\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tif ( !( nodeAfter instanceof Element ) ) {\n\t\t\t\t/**\n\t\t\t\t * The node after the merge position must be an element.\n\t\t\t\t *\n\t\t\t\t * @error schema-check-merge-no-element-after\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'schema-check-merge-no-element-after',\n\t\t\t\t\tthis\n\t\t\t\t);\n\t\t\t}\n\n\t\t\treturn this.checkMerge( nodeBefore, nodeAfter );\n\t\t}\n\n\t\tfor ( const child of elementToMerge.getChildren() ) {\n\t\t\tif ( !this.checkChild( positionOrBaseElement, child ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Allows registering a callback to the {@link #checkChild} method calls.\n\t *\n\t * Callbacks allow you to implement rules which are not otherwise possible to achieve\n\t * by using the declarative API of {@link module:engine/model/schema~SchemaItemDefinition}.\n\t * For example, by using this method you can disallow elements in specific contexts.\n\t *\n\t * This method is a shorthand for using the {@link #event:checkChild} event. For even better control,\n\t * you can use that event instead.\n\t *\n\t * Example:\n\t *\n\t * ```ts\n\t * // Disallow heading1 directly inside a blockQuote.\n\t * schema.addChildCheck( ( context, childDefinition ) => {\n\t * \tif ( context.endsWith( 'blockQuote' ) && childDefinition.name == 'heading1' ) {\n\t * \t\treturn false;\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * Which translates to:\n\t *\n\t * ```ts\n\t * schema.on( 'checkChild', ( evt, args ) => {\n\t * \tconst context = args[ 0 ];\n\t * \tconst childDefinition = args[ 1 ];\n\t *\n\t * \tif ( context.endsWith( 'blockQuote' ) && childDefinition && childDefinition.name == 'heading1' ) {\n\t * \t\t// Prevent next listeners from being called.\n\t * \t\tevt.stop();\n\t * \t\t// Set the checkChild()'s return value.\n\t * \t\tevt.return = false;\n\t * \t}\n\t * }, { priority: 'high' } );\n\t * ```\n\t *\n\t * @param callback The callback to be called. It is called with two parameters:\n\t * {@link module:engine/model/schema~SchemaContext} (context) instance and\n\t * {@link module:engine/model/schema~SchemaCompiledItemDefinition} (child-to-check definition).\n\t * The callback may return `true/false` to override `checkChild()`'s return value. If it does not return\n\t * a boolean value, the default algorithm (or other callbacks) will define `checkChild()`'s return value.\n\t */\n\tpublic addChildCheck( callback: SchemaChildCheckCallback ): void {\n\t\tthis.on<SchemaCheckChildEvent>( 'checkChild', ( evt, [ ctx, childDef ] ) => {\n\t\t\t// checkChild() was called with a non-registered child.\n\t\t\t// In 99% cases such check should return false, so not to overcomplicate all callbacks\n\t\t\t// don't even execute them.\n\t\t\tif ( !childDef ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst retValue = callback( ctx, childDef );\n\n\t\t\tif ( typeof retValue == 'boolean' ) {\n\t\t\t\tevt.stop();\n\t\t\t\tevt.return = retValue;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Allows registering a callback to the {@link #checkAttribute} method calls.\n\t *\n\t * Callbacks allow you to implement rules which are not otherwise possible to achieve\n\t * by using the declarative API of {@link module:engine/model/schema~SchemaItemDefinition}.\n\t * For example, by using this method you can disallow attribute if node to which it is applied\n\t * is contained within some other element (e.g. you want to disallow `bold` on `$text` within `heading1`).\n\t *\n\t * This method is a shorthand for using the {@link #event:checkAttribute} event. For even better control,\n\t * you can use that event instead.\n\t *\n\t * Example:\n\t *\n\t * ```ts\n\t * // Disallow bold on $text inside heading1.\n\t * schema.addAttributeCheck( ( context, attributeName ) => {\n\t * \tif ( context.endsWith( 'heading1 $text' ) && attributeName == 'bold' ) {\n\t * \t\treturn false;\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * Which translates to:\n\t *\n\t * ```ts\n\t * schema.on( 'checkAttribute', ( evt, args ) => {\n\t * \tconst context = args[ 0 ];\n\t * \tconst attributeName = args[ 1 ];\n\t *\n\t * \tif ( context.endsWith( 'heading1 $text' ) && attributeName == 'bold' ) {\n\t * \t\t// Prevent next listeners from being called.\n\t * \t\tevt.stop();\n\t * \t\t// Set the checkAttribute()'s return value.\n\t * \t\tevt.return = false;\n\t * \t}\n\t * }, { priority: 'high' } );\n\t * ```\n\t *\n\t * @param callback The callback to be called. It is called with two parameters:\n\t * {@link module:engine/model/schema~SchemaContext} (context) instance and attribute name.\n\t * The callback may return `true/false` to override `checkAttribute()`'s return value. If it does not return\n\t * a boolean value, the default algorithm (or other callbacks) will define `checkAttribute()`'s return value.\n\t */\n\tpublic addAttributeCheck( callback: SchemaAttributeCheckCallback ): void {\n\t\tthis.on<SchemaCheckAttributeEvent>( 'checkAttribute', ( evt, [ ctx, attributeName ] ) => {\n\t\t\tconst retValue = callback( ctx, attributeName );\n\n\t\t\tif ( typeof retValue == 'boolean' ) {\n\t\t\t\tevt.stop();\n\t\t\t\tevt.return = retValue;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * This method allows assigning additional metadata to the model attributes. For example,\n\t * {@link module:engine/model/schema~AttributeProperties `AttributeProperties#isFormatting` property} is\n\t * used to mark formatting attributes (like `bold` or `italic`).\n\t *\n\t * ```ts\n\t * // Mark bold as a formatting attribute.\n\t * schema.setAttributeProperties( 'bold', {\n\t * \tisFormatting: true\n\t * } );\n\t *\n\t * // Override code not to be considered a formatting markup.\n\t * schema.setAttributeProperties( 'code', {\n\t * \tisFormatting: false\n\t * } );\n\t * ```\n\t *\n\t * Properties are not limited to members defined in the\n\t * {@link module:engine/model/schema~AttributeProperties `AttributeProperties` type} and you can also use custom properties:\n\t *\n\t * ```ts\n\t * schema.setAttributeProperties( 'blockQuote', {\n\t * \tcustomProperty: 'value'\n\t * } );\n\t * ```\n\t *\n\t * Subsequent calls with the same attribute will extend its custom properties:\n\t *\n\t * ```ts\n\t * schema.setAttributeProperties( 'blockQuote', {\n\t * \tone: 1\n\t * } );\n\t *\n\t * schema.setAttributeProperties( 'blockQuote', {\n\t * \ttwo: 2\n\t * } );\n\t *\n\t * console.log( schema.getAttributeProperties( 'blockQuote' ) );\n\t * // Logs: { one: 1, two: 2 }\n\t * ```\n\t *\n\t * @param attributeName A name of the attribute to receive the properties.\n\t * @param properties A dictionary of properties.\n\t */\n\tpublic setAttributeProperties( attributeName: string, properties: AttributeProperties ): void {\n\t\tthis._attributeProperties[ attributeName ] = Object.assign( this.getAttributeProperties( attributeName ), properties );\n\t}\n\n\t/**\n\t * Returns properties associated with a given model attribute. See {@link #setAttributeProperties `setAttributeProperties()`}.\n\t *\n\t * @param attributeName A name of the attribute.\n\t */\n\tpublic getAttributeProperties( attributeName: string ): AttributeProperties {\n\t\treturn this._attributeProperties[ attributeName ] || {};\n\t}\n\n\t/**\n\t * Returns the lowest {@link module:engine/model/schema~Schema#isLimit limit element} containing the entire\n\t * selection/range/position or the root otherwise.\n\t *\n\t * @param selectionOrRangeOrPosition The selection/range/position to check.\n\t * @returns The lowest limit element containing the entire `selectionOrRangeOrPosition`.\n\t */\n\tpublic getLimitElement( selectionOrRangeOrPosition: Selection | DocumentSelection | Range | Position ): Element {\n\t\tlet element: Element;\n\n\t\tif ( selectionOrRangeOrPosition instanceof Position ) {\n\t\t\telement = selectionOrRangeOrPosition.parent as Element;\n\t\t} else {\n\t\t\tconst ranges = selectionOrRangeOrPosition instanceof Range ?\n\t\t\t\t[ selectionOrRangeOrPosition ] :\n\t\t\t\tArray.from( selectionOrRangeOrPosition.getRanges() );\n\n\t\t\t// Find the common ancestor for all selection's ranges.\n\t\t\telement = ranges\n\t\t\t\t.reduce<Element | null>( ( element, range ) => {\n\t\t\t\t\tconst rangeCommonAncestor = range.getCommonAncestor() as ( Element | null );\n\n\t\t\t\t\tif ( !element ) {\n\t\t\t\t\t\treturn rangeCommonAncestor;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn element.getCommonAncestor( rangeCommonAncestor as Element, { includeSelf: true } ) as Element;\n\t\t\t\t}, null )!;\n\t\t}\n\n\t\twhile ( !this.isLimit( element ) ) {\n\t\t\tif ( element.parent ) {\n\t\t\t\telement = element.parent as Element;\n\t\t\t} else {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\treturn element;\n\t}\n\n\t/**\n\t * Checks whether the attribute is allowed in selection:\n\t *\n\t * * if the selection is not collapsed, then checks if the attribute is allowed on any of nodes in that range,\n\t * * if the selection is collapsed, then checks if on the selection position there's a text with the\n\t * specified attribute allowed.\n\t *\n\t * @param selection Selection which will be checked.\n\t * @param attribute The name of the attribute to check.\n\t */\n\tpublic checkAttributeInSelection( selection: Selection | DocumentSelection, attribute: string ): boolean {\n\t\tif ( selection.isCollapsed ) {\n\t\t\tconst firstPosition = selection.getFirstPosition()!;\n\t\t\tconst context = [\n\t\t\t\t...firstPosition.getAncestors() as Array<Element>,\n\t\t\t\tnew Text( '', selection.getAttributes() )\n\t\t\t];\n\n\t\t\t// Check whether schema allows for a text with the attribute in the selection.\n\t\t\treturn this.checkAttribute( context, attribute );\n\t\t} else {\n\t\t\tconst ranges = selection.getRanges();\n\n\t\t\t// For all ranges, check nodes in them until you find a node that is allowed to have the attribute.\n\t\t\tfor ( const range of ranges ) {\n\t\t\t\tfor ( const value of range ) {\n\t\t\t\t\tif ( this.checkAttribute( value.item, attribute ) ) {\n\t\t\t\t\t\t// If we found a node that is allowed to have the attribute, return true.\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// If we haven't found such node, return false.\n\t\treturn false;\n\t}\n\n\t/**\n\t * Transforms the given set of ranges into a set of ranges where the given attribute is allowed (and can be applied).\n\t *\n\t * @param ranges Ranges to be validated.\n\t * @param attribute The name of the attribute to check.\n\t * @returns Ranges in which the attribute is allowed.\n\t */\n\tpublic* getValidRanges( ranges: Iterable<Range>, attribute: string ): IterableIterator<Range> {\n\t\tranges = convertToMinimalFlatRanges( ranges );\n\n\t\tfor ( const range of ranges ) {\n\t\t\tyield* this._getValidRangesForRange( range, attribute );\n\t\t}\n\t}\n\n\t/**\n\t * Basing on given `position`, finds and returns a {@link module:engine/model/range~Range range} which is\n\t * nearest to that `position` and is a correct range for selection.\n\t *\n\t * The correct selection range might be collapsed when it is located in a position where the text node can be placed.\n\t * Non-collapsed range is returned when selection can be placed around element marked as an \"object\" in\n\t * the {@link module:engine/model/schema~Schema schema}.\n\t *\n\t * Direction of searching for the nearest correct selection range can be specified as:\n\t *\n\t * * `both` - searching will be performed in both ways,\n\t * * `forward` - searching will be performed only forward,\n\t * * `backward` - searching will be performed only backward.\n\t *\n\t * When valid selection range cannot be found, `null` is returned.\n\t *\n\t * @param position Reference position where new selection range should be looked for.\n\t * @param direction Search direction.\n\t * @returns Nearest selection range or `null` if one cannot be found.\n\t */\n\tpublic getNearestSelectionRange( position: Position, direction: 'both' | 'forward' | 'backward' = 'both' ): Range | null {\n\t\t// Return collapsed range if provided position is valid.\n\t\tif ( this.checkChild( position, '$text' ) ) {\n\t\t\treturn new Range( position );\n\t\t}\n\n\t\tlet backwardWalker, forwardWalker;\n\n\t\t// Never leave a limit element.\n\t\tconst limitElement = ( position.getAncestors() as Array<Element> ).reverse().find( item => this.isLimit( item ) ) ||\n\t\t\tposition.root as Element;\n\n\t\tif ( direction == 'both' || direction == 'backward' ) {\n\t\t\tbackwardWalker = new TreeWalker( {\n\t\t\t\tboundaries: Range._createIn( limitElement ),\n\t\t\t\tstartPosition: position,\n\t\t\t\tdirection: 'backward'\n\t\t\t} );\n\t\t}\n\n\t\tif ( direction == 'both' || direction == 'forward' ) {\n\t\t\tforwardWalker = new TreeWalker( {\n\t\t\t\tboundaries: Range._createIn( limitElement ),\n\t\t\t\tstartPosition: position\n\t\t\t} );\n\t\t}\n\n\t\tfor ( const data of combineWalkers( backwardWalker, forwardWalker ) ) {\n\t\t\tconst type = ( data.walker == backwardWalker ? 'elementEnd' : 'elementStart' );\n\t\t\tconst value = data.value;\n\n\t\t\tif ( value.type == type && this.isObject( value.item ) ) {\n\t\t\t\treturn Range._createOn( value.item );\n\t\t\t}\n\n\t\t\tif ( this.checkChild( value.nextPosition, '$text' ) ) {\n\t\t\t\treturn new Range( value.nextPosition );\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Tries to find position ancestors that allow to insert a given node.\n\t * It starts searching from the given position and goes node by node to the top of the model tree\n\t * as long as a {@link module:engine/model/schema~Schema#isLimit limit element}, an\n\t * {@link module:engine/model/schema~Schema#isObject object element} or a topmost ancestor is not reached.\n\t *\n\t * @param position The position that the search will start from.\n\t * @param node The node for which an allowed parent should be found or its name.\n\t * @returns Allowed parent or null if nothing was found.\n\t */\n\tpublic findAllowedParent( position: Position, node: Node | string ): Element | null {\n\t\tlet parent = position.parent as ( Element | null );\n\n\t\twhile ( parent ) {\n\t\t\tif ( this.checkChild( parent, node ) ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\t// Do not split limit elements.\n\t\t\tif ( this.isLimit( parent ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tparent = parent.parent as ( Element | null );\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Sets attributes allowed by the schema on a given node.\n\t *\n\t * @param node A node to set attributes on.\n\t * @param attributes Attributes keys and values.\n\t * @param writer An instance of the model writer.\n\t */\n\tpublic setAllowedAttributes(\n\t\tnode: Node,\n\t\tattributes: Record<string, unknown>,\n\t\twriter: Writer\n\t): void {\n\t\tconst model = writer.model;\n\n\t\tfor ( const [ attributeName, attributeValue ] of Object.entries( attributes ) ) {\n\t\t\tif ( model.schema.checkAttribute( node, attributeName ) ) {\n\t\t\t\twriter.setAttribute( attributeName, attributeValue, node );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Removes attributes disallowed by the schema.\n\t *\n\t * @param nodes Nodes that will be filtered.\n\t */\n\tpublic removeDisallowedAttributes( nodes: Iterable<Node>, writer: Writer ): void {\n\t\tfor ( const node of nodes ) {\n\t\t\t// When node is a `Text` it has no children, so just filter it out.\n\t\t\tif ( node.is( '$text' ) ) {\n\t\t\t\tremoveDisallowedAttributeFromNode( this, node, writer );\n\t\t\t}\n\t\t\t// In a case of `Element` iterates through positions between nodes inside this element\n\t\t\t// and filter out node before the current position, or position parent when position\n\t\t\t// is at start of an element. Using positions prevent from omitting merged nodes\n\t\t\t// see https://github.com/ckeditor/ckeditor5-engine/issues/1789.\n\t\t\telse {\n\t\t\t\tconst rangeInNode = Range._createIn( node as Element );\n\t\t\t\tconst positionsInRange = rangeInNode.getPositions();\n\n\t\t\t\tfor ( const position of positionsInRange ) {\n\t\t\t\t\tconst item = position.nodeBefore || position.parent;\n\n\t\t\t\t\tremoveDisallowedAttributeFromNode( this, item as any, writer );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Gets attributes of a node that have a given property.\n\t *\n\t * @param node Node to get attributes from.\n\t * @param propertyName Name of the property that attribute must have to return it.\n\t * @param propertyValue Desired value of the property that we want to check.\n\t * When `undefined` attributes will be returned if they have set a given property no matter what the value is. If specified it will\n\t * return attributes which given property's value is equal to this parameter.\n\t * @returns Object with attributes' names as key and attributes' values as value.\n\t */\n\tpublic getAttributesWithProperty( node: Node, propertyName: string, propertyValue: unknown ): Record<string, unknown> {\n\t\tconst attributes: Record<string, unknown> = {};\n\n\t\tfor ( const [ attributeName, attributeValue ] of node.getAttributes() ) {\n\t\t\tconst attributeProperties = this.getAttributeProperties( attributeName );\n\n\t\t\tif ( attributeProperties[ propertyName ] === undefined ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( propertyValue === undefined || propertyValue === attributeProperties[ propertyName ] ) {\n\t\t\t\tattributes[ attributeName ] = attributeValue;\n\t\t\t}\n\t\t}\n\n\t\treturn attributes;\n\t}\n\n\t/**\n\t * Creates an instance of the schema context.\n\t */\n\tpublic createContext( context: SchemaContextDefinition ): SchemaContext {\n\t\treturn new SchemaContext( context );\n\t}\n\n\tprivate _clearCache(): void {\n\t\tthis._compiledDefinitions = null;\n\t}\n\n\tprivate _compile(): void {\n\t\tconst compiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal> = {};\n\t\tconst sourceRules = this._sourceDefinitions;\n\t\tconst itemNames = Object.keys( sourceRules );\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompiledDefinitions[ itemName ] = compileBaseItemRule( sourceRules[ itemName ], itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowChildren( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowContentOf( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowWhere( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcompileAllowAttributesOf( compiledDefinitions, itemName );\n\t\t\tcompileInheritPropertiesFrom( compiledDefinitions, itemName );\n\t\t}\n\n\t\tfor ( const itemName of itemNames ) {\n\t\t\tcleanUpAllowIn( compiledDefinitions, itemName );\n\t\t\tsetupAllowChildren( compiledDefinitions, itemName );\n\t\t\tcleanUpAllowAttributes( compiledDefinitions, itemName );\n\t\t}\n\n\t\tthis._compiledDefinitions = compiledDefinitions as any;\n\t}\n\n\tprivate _checkContextMatch(\n\t\tdef: SchemaCompiledItemDefinition,\n\t\tcontext: SchemaContext,\n\t\tcontextItemIndex: number = context.length - 1\n\t): boolean {\n\t\tconst contextItem = context.getItem( contextItemIndex );\n\n\t\tif ( def.allowIn.includes( contextItem.name ) ) {\n\t\t\tif ( contextItemIndex == 0 ) {\n\t\t\t\treturn true;\n\t\t\t} else {\n\t\t\t\tconst parentRule = this.getDefinition( contextItem );\n\n\t\t\t\treturn this._checkContextMatch( parentRule!, context, contextItemIndex - 1 );\n\t\t\t}\n\t\t} else {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\t/**\n\t * Takes a flat range and an attribute name. Traverses the range recursively and deeply to find and return all ranges\n\t * inside the given range on which the attribute can be applied.\n\t *\n\t * This is a helper function for {@link ~Schema#getValidRanges}.\n\t *\n\t * @param range The range to process.\n\t * @param attribute The name of the attribute to check.\n\t * @returns Ranges in which the attribute is allowed.\n\t */\n\tprivate* _getValidRangesForRange( range: Range, attribute: string ): Iterable<Range> {\n\t\tlet start = range.start;\n\t\tlet end = range.start;\n\n\t\tfor ( const item of range.getItems( { shallow: true } ) ) {\n\t\t\tif ( item.is( 'element' ) ) {\n\t\t\t\tyield* this._getValidRangesForRange( Range._createIn( item ), attribute );\n\t\t\t}\n\n\t\t\tif ( !this.checkAttribute( item, attribute ) ) {\n\t\t\t\tif ( !start.isEqual( end ) ) {\n\t\t\t\t\tyield new Range( start, end );\n\t\t\t\t}\n\n\t\t\t\tstart = Position._createAfter( item );\n\t\t\t}\n\n\t\t\tend = Position._createAfter( item );\n\t\t}\n\n\t\tif ( !start.isEqual( end ) ) {\n\t\t\tyield new Range( start, end );\n\t\t}\n\t}\n}\n\n/**\n * Event fired when the {@link ~Schema#checkChild} method is called. It allows plugging in\n * additional behavior, for example implementing rules which cannot be defined using the declarative\n * {@link module:engine/model/schema~SchemaItemDefinition} interface.\n *\n * **Note:** The {@link ~Schema#addChildCheck} method is a more handy way to register callbacks. Internally,\n * it registers a listener to this event but comes with a simpler API and it is the recommended choice\n * in most of the cases.\n *\n * The {@link ~Schema#checkChild} method fires an event because it is\n * {@link module:utils/observablemixin~Observable#decorate decorated} with it. Thanks to that you can\n * use this event in various ways, but the most important use case is overriding standard behavior of the\n * `checkChild()` method. Let's see a typical listener template:\n *\n * ```ts\n * schema.on( 'checkChild', ( evt, args ) => {\n * \tconst context = args[ 0 ];\n * \tconst childDefinition = args[ 1 ];\n * }, { priority: 'high' } );\n * ```\n *\n * The listener is added with a `high` priority to be executed before the default method is really called. The `args` callback\n * parameter contains arguments passed to `checkChild( context, child )`. However, the `context` parameter is already\n * normalized to a {@link module:engine/model/schema~SchemaContext} instance and `child` to a\n * {@link module:engine/model/schema~SchemaCompiledItemDefinition} instance, so you do not have to worry about\n * the various ways how `context` and `child` may be passed to `checkChild()`.\n *\n * **Note:** `childDefinition` may be `undefined` if `checkChild()` was called with a non-registered element.\n *\n * So, in order to implement a rule \"disallow `heading1` in `blockQuote`\", you can add such a listener:\n *\n * ```ts\n * schema.on( 'checkChild', ( evt, args ) => {\n * \tconst context = args[ 0 ];\n * \tconst childDefinition = args[ 1 ];\n *\n * \tif ( context.endsWith( 'blockQuote' ) && childDefinition && childDefinition.name == 'heading1' ) {\n * \t\t// Prevent next listeners from being called.\n * \t\tevt.stop();\n * \t\t// Set the checkChild()'s return value.\n * \t\tevt.return = false;\n * \t}\n * }, { priority: 'high' } );\n * ```\n *\n * Allowing elements in specific contexts will be a far less common use case, because it is normally handled by the\n * `allowIn` rule from {@link module:engine/model/schema~SchemaItemDefinition}. But if you have a complex scenario\n * where `listItem` should be allowed only in element `foo` which must be in element `bar`, then this would be the way:\n *\n * ```ts\n * schema.on( 'checkChild', ( evt, args ) => {\n * \tconst context = args[ 0 ];\n * \tconst childDefinition = args[ 1 ];\n *\n * \tif ( context.endsWith( 'bar foo' ) && childDefinition.name == 'listItem' ) {\n * \t\t// Prevent next listeners from being called.\n * \t\tevt.stop();\n * \t\t// Set the checkChild()'s return value.\n * \t\tevt.return = true;\n * \t}\n * }, { priority: 'high' } );\n * ```\n *\n * @eventName ~Schema#checkChild\n * @param args The `checkChild()`'s arguments.\n */\nexport type SchemaCheckChildEvent = {\n\tname: 'checkChild';\n\targs: [ [ context: SchemaContext, def: SchemaCompiledItemDefinition ] ];\n};\n\n/**\n * Event fired when the {@link ~Schema#checkAttribute} method is called. It allows plugging in\n * additional behavior, for example implementing rules which cannot be defined using the declarative\n * {@link module:engine/model/schema~SchemaItemDefinition} interface.\n *\n * **Note:** The {@link ~Schema#addAttributeCheck} method is a more handy way to register callbacks. Internally,\n * it registers a listener to this event but comes with a simpler API and it is the recommended choice\n * in most of the cases.\n *\n * The {@link ~Schema#checkAttribute} method fires an event because it is\n * {@link module:utils/observablemixin~Observable#decorate decorated} with it. Thanks to that you can\n * use this event in various ways, but the most important use case is overriding the standard behavior of the\n * `checkAttribute()` method. Let's see a typical listener template:\n *\n * ```ts\n * schema.on( 'checkAttribute', ( evt, args ) => {\n * \tconst context = args[ 0 ];\n * \tconst attributeName = args[ 1 ];\n * }, { priority: 'high' } );\n * ```\n *\n * The listener is added with a `high` priority to be executed before the default method is really called. The `args` callback\n * parameter contains arguments passed to `checkAttribute( context, attributeName )`. However, the `context` parameter is already\n * normalized to a {@link module:engine/model/schema~SchemaContext} instance, so you do not have to worry about\n * the various ways how `context` may be passed to `checkAttribute()`.\n *\n * So, in order to implement a rule \"disallow `bold` in a text which is in a `heading1`, you can add such a listener:\n *\n * ```ts\n * schema.on( 'checkAttribute', ( evt, args ) => {\n * \tconst context = args[ 0 ];\n * \tconst attributeName = args[ 1 ];\n *\n * \tif ( context.endsWith( 'heading1 $text' ) && attributeName == 'bold' ) {\n * \t\t// Prevent next listeners from being called.\n * \t\tevt.stop();\n * \t\t// Set the checkAttribute()'s return value.\n * \t\tevt.return = false;\n * \t}\n * }, { priority: 'high' } );\n * ```\n *\n * Allowing attributes in specific contexts will be a far less common use case, because it is normally handled by the\n * `allowAttributes` rule from {@link module:engine/model/schema~SchemaItemDefinition}. But if you have a complex scenario\n * where `bold` should be allowed only in element `foo` which must be in element `bar`, then this would be the way:\n *\n * ```ts\n * schema.on( 'checkAttribute', ( evt, args ) => {\n * \tconst context = args[ 0 ];\n * \tconst attributeName = args[ 1 ];\n *\n * \tif ( context.endsWith( 'bar foo $text' ) && attributeName == 'bold' ) {\n * \t\t// Prevent next listeners from being called.\n * \t\tevt.stop();\n * \t\t// Set the checkAttribute()'s return value.\n * \t\tevt.return = true;\n * \t}\n * }, { priority: 'high' } );\n * ```\n *\n * @eventName ~Schema#checkAttribute\n * @param args The `checkAttribute()`'s arguments.\n */\nexport type SchemaCheckAttributeEvent = {\n\tname: 'checkAttribute';\n\targs: [ [ context: SchemaContext, attributeName: string ] ];\n};\n\n/**\n * A definition of a {@link module:engine/model/schema~Schema schema} item.\n *\n * You can define the following rules:\n *\n * * {@link ~SchemaItemDefinition#allowIn `allowIn`} &ndash; Defines in which other items this item will be allowed.\n * * {@link ~SchemaItemDefinition#allowChildren `allowChildren`} &ndash; Defines which other items are allowed inside this item.\n * * {@link ~SchemaItemDefinition#allowAttributes `allowAttributes`} &ndash; Defines allowed attributes of the given item.\n * * {@link ~SchemaItemDefinition#allowContentOf `allowContentOf`} &ndash; Inherits \"allowed children\" from other items.\n * * {@link ~SchemaItemDefinition#allowWhere `allowWhere`} &ndash; Inherits \"allowed in\" from other items.\n * * {@link ~SchemaItemDefinition#allowAttributesOf `allowAttributesOf`} &ndash; Inherits attributes from other items.\n * * {@link ~SchemaItemDefinition#inheritTypesFrom `inheritTypesFrom`} &ndash; Inherits `is*` properties of other items.\n * * {@link ~SchemaItemDefinition#inheritAllFrom `inheritAllFrom`} &ndash;\n * A shorthand for `allowContentOf`, `allowWhere`, `allowAttributesOf`, `inheritTypesFrom`.\n *\n * # The `is*` properties\n *\n * There are a couple commonly used `is*` properties. Their role is to assign additional semantics to schema items.\n * You can define more properties but you will also need to implement support for them in the existing editor features.\n *\n * * {@link ~SchemaItemDefinition#isBlock `isBlock`} &ndash; Whether this item is paragraph-like.\n * Generally speaking, content is usually made out of blocks like paragraphs, list items, images, headings, etc.\n * * {@link ~SchemaItemDefinition#isInline `isInline`} &ndash; Whether an item is \"text-like\" and should be treated as an inline node.\n * Examples of inline elements: `$text`, `softBreak` (`<br>`), etc.\n * * {@link ~SchemaItemDefinition#isLimit `isLimit`} &ndash; It can be understood as whether this element\n * should not be split by <kbd>Enter</kbd>. Examples of limit elements: `$root`, table cell, image caption, etc.\n * In other words, all actions that happen inside a limit element are limited to its content.\n * All objects are treated as limit elements, too.\n * * {@link ~SchemaItemDefinition#isObject `isObject`} &ndash; Whether an item is \"self-contained\" and should be treated as a whole.\n * Examples of object elements: `imageBlock`, `table`, `video`, etc. An object is also a limit, so\n * {@link module:engine/model/schema~Schema#isLimit `isLimit()`} returns `true` for object elements automatically.\n *\n * Read more about the meaning of these types in the\n * {@glink framework/deep-dive/schema#defining-additional-semantics dedicated section of the Schema deep-dive} guide.\n *\n * # Generic items\n *\n * There are several generic items (classes of elements) available: `$root`, `$container`, `$block`, `$blockObject`,\n * `$inlineObject`, and `$text`. They are defined as follows:\n *\n * ```ts\n * schema.register( '$root', {\n * \tisLimit: true\n * } );\n *\n * schema.register( '$container', {\n * \tallowIn: [ '$root', '$container' ]\n * } );\n *\n * schema.register( '$block', {\n * \tallowIn: [ '$root', '$container' ],\n * \tisBlock: true\n * } );\n *\n * schema.register( '$blockObject', {\n * \tallowWhere: '$block',\n * \tisBlock: true,\n * \tisObject: true\n * } );\n *\n * schema.register( '$inlineObject', {\n * \tallowWhere: '$text',\n * \tallowAttributesOf: '$text',\n * \tisInline: true,\n * \tisObject: true\n * } );\n *\n * schema.register( '$text', {\n * \tallowIn: '$block',\n * \tisInline: true,\n * \tisContent: true\n * } );\n * ```\n *\n * They reflect typical editor content that is contained within one root, consists of several blocks\n * (paragraphs, lists items, headings, images) which, in turn, may contain text inside.\n *\n * By inheriting from the generic items you can define new items which will get extended by other editor features.\n * Read more about generic types in the {@glink framework/deep-dive/schema Schema deep-dive} guide.\n *\n * # Example definitions\n *\n * Allow `paragraph` in roots and block quotes:\n *\n * ```ts\n * schema.register( 'paragraph', {\n * \tallowIn: [ '$root', 'blockQuote' ],\n * \tisBlock: true\n * } );\n * ```\n *\n * Allow `paragraph` everywhere where `$block` is allowed (i.e. in `$root`):\n *\n * ```ts\n * schema.register( 'paragraph', {\n * \tallowWhere: '$block',\n * \tisBlock: true\n * } );\n * ```\n *\n * Allow `paragraph` inside a `$root` and allow `$text` as a `paragraph` child:\n *\n * ```ts\n * schema.register( 'paragraph', {\n * \tallowIn: '$root',\n * \tallowChildren: '$text',\n * \tisBlock: true\n * } );\n * ```\n *\n * The previous rule can be written in a shorter form using inheritance:\n *\n * ```ts\n * schema.register( 'paragraph', {\n * \tinheritAllFrom: '$block'\n * } );\n * ```\n *\n * Make `imageBlock` a block object, which is allowed everywhere where `$block` is.\n * Also, allow `src` and `alt` attributes in it:\n *\n * ```ts\n * schema.register( 'imageBlock', {\n * \tinheritAllFrom: '$blockObject',\n * \tallowAttributes: [ 'src', 'alt' ],\n * } );\n * ```\n *\n * Make `caption` allowed in `imageBlock` and make it allow all the content of `$block`s (usually, `$text`).\n * Also, mark it as a limit element so it cannot be split:\n *\n * ```ts\n * schema.register( 'caption', {\n * \tallowIn: 'imageBlock',\n * \tallowContentOf: '$block',\n * \tisLimit: true\n * } );\n * ```\n *\n * Make `listItem` inherit all from `$block` but also allow additional attributes:\n *\n * ```ts\n * schema.register( 'listItem', {\n * \tinheritAllFrom: '$block',\n * \tallowAttributes: [ 'listType', 'listIndent' ]\n * } );\n * ```\n *\n * Which translates to:\n *\n * ```ts\n * schema.register( 'listItem', {\n * \tallowWhere: '$block',\n * \tallowContentOf: '$block',\n * \tallowAttributesOf: '$block',\n * \tinheritTypesFrom: '$block',\n * \tallowAttributes: [ 'listType', 'listIndent' ]\n * } );\n * ```\n *\n * # Tips\n *\n * * Check schema definitions of existing features to see how they are defined.\n * * If you want to publish your feature so other developers can use it, try to use\n * generic items as much as possible.\n * * Keep your model clean. Limit it to the actual data and store information in a normalized way.\n * * Remember about defining the `is*` properties. They do not affect the allowed structures, but they can\n * affect how the editor features treat your elements.\n */\nexport interface SchemaItemDefinition {\n\n\t/**\n\t * Defines in which other items this item will be allowed.\n\t */\n\tallowIn?: string | Array<string>;\n\n\t/**\n\t * Defines which other items are allowed inside this item.\n\t */\n\tallowChildren?: string | Array<string>;\n\n\t/**\n\t * Defines allowed attributes of the given item.\n\t */\n\tallowAttributes?: string | Array<string>;\n\n\t/**\n\t * Inherits \"allowed children\" from other items.\n\t */\n\tallowContentOf?: string | Array<string>;\n\n\t/**\n\t * Inherits \"allowed in\" from other items.\n\t */\n\tallowWhere?: string | Array<string>;\n\n\t/**\n\t * Inherits attributes from other items.\n\t */\n\tallowAttributesOf?: string | Array<string>;\n\n\t/**\n\t * Inherits `is*` properties of other items.\n\t */\n\tinheritTypesFrom?: string | Array<string>;\n\n\t/**\n\t * A shorthand for `allowContentOf`, `allowWhere`, `allowAttributesOf`, `inheritTypesFrom`.\n\t */\n\tinheritAllFrom?: string;\n\n\t/**\n\t * Whether this item is paragraph-like. Generally speaking, content is usually made out of blocks\n\t * like paragraphs, list items, images, headings, etc. All these elements are marked as blocks. A block\n\t * should not allow another block inside. Note: There is also the `$block` generic item which has `isBlock` set to `true`.\n\t * Most block type items will inherit from `$block` (through `inheritAllFrom`).\n\t *\n\t * Read more about the block elements in the\n\t * {@glink framework/deep-dive/schema#block-elements Block elements section} of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide.\n\t */\n\tisBlock?: boolean;\n\n\t/**\n\t * Whether an item is \"text-like\" and should be treated as an inline node. Examples of inline elements:\n\t * `$text`, `softBreak` (`<br>`), etc.\n\t *\n\t * Read more about the inline elements in the\n\t * {@glink framework/deep-dive/schema#inline-elements Inline elements section} of the Schema deep-dive guide.\n\t */\n\tisInline?: boolean;\n\n\t/**\n\t * It can be understood as whether this element should not be split by <kbd>Enter</kbd>.\n\t * Examples of limit elements: `$root`, table cell, image caption, etc. In other words, all actions that happen inside\n\t * a limit element are limited to its content.\n\t *\n\t * Read more about the limit elements in the\n\t * {@glink framework/deep-dive/schema#limit-elements Limit elements section} of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide.\n\t */\n\tisLimit?: boolean;\n\n\t/**\n\t * Whether an item is \"self-contained\" and should be treated as a whole. Examples of object elements:\n\t * `imageBlock`, `table`, `video`, etc.\n\t *\n\t * **Note:** An object is also a limit, so\n\t * {@link module:engine/model/schema~Schema#isLimit `isLimit()`} returns `true` for object elements automatically.\n\t *\n\t * Read more about the object elements in the\n\t * {@glink framework/deep-dive/schema#object-elements Object elements section} of the Schema deep-dive guide.\n\t */\n\tisObject?: boolean;\n\n\t/**\n\t * `true` when an element should be selectable as a whole by the user.\n\t * Examples of selectable elements: `imageBlock`, `table`, `tableCell`, etc.\n\t *\n\t * **Note:** An object is also a selectable element, so\n\t * {@link module:engine/model/schema~Schema#isSelectable `isSelectable()`} returns `true` for object elements automatically.\n\t *\n\t * Read more about selectable elements in the\n\t * {@glink framework/deep-dive/schema#selectable-elements Selectable elements section} of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide.\n\t */\n\tisSelectable?: boolean;\n\n\t/**\n\t * An item is a content when it always finds its way to the editor data output regardless of the number and type of its descendants.\n\t * Examples of content elements: `$text`, `imageBlock`, `table`, etc. (but not `paragraph`, `heading1` or `tableCell`).\n\t *\n\t * **Note:** An object is also a content element, so\n\t * {@link module:engine/model/schema~Schema#isContent `isContent()`} returns `true` for object elements automatically.\n\t *\n\t * Read more about content elements in the\n\t * {@glink framework/deep-dive/schema#content-elements Content elements section} of\n\t * the {@glink framework/deep-dive/schema Schema deep-dive} guide.\n\t */\n\tisContent?: boolean;\n}\n\n/**\n * A simplified version of {@link module:engine/model/schema~SchemaItemDefinition} after\n * compilation by the {@link module:engine/model/schema~Schema schema}.\n * Rules fed to the schema by {@link module:engine/model/schema~Schema#register}\n * and {@link module:engine/model/schema~Schema#extend} methods are defined in the\n * {@link module:engine/model/schema~SchemaItemDefinition} format.\n * Later on, they are compiled to `SchemaCompiledItemDefinition` so when you use e.g.\n * the {@link module:engine/model/schema~Schema#getDefinition} method you get the compiled version.\n *\n * The compiled version contains only the following properties:\n *\n * * The `name` property,\n * * The `is*` properties,\n * * The `allowIn` array,\n * * The `allowChildren` array,\n * * The `allowAttributes` array.\n */\nexport interface SchemaCompiledItemDefinition {\n\tname: string;\n\tisBlock: boolean;\n\tisContent: boolean;\n\tisInline: boolean;\n\tisLimit: boolean;\n\tisObject: boolean;\n\tisSelectable: boolean;\n\tallowIn: Array<string>;\n\tallowChildren: Array<string>;\n\tallowAttributes: Array<string>;\n}\n\ninterface SchemaCompiledItemDefinitionInternal {\n\tname: string;\n\n\tisBlock?: boolean;\n\tisContent?: boolean;\n\tisInline?: boolean;\n\tisLimit?: boolean;\n\tisObject?: boolean;\n\tisSelectable?: boolean;\n\n\tallowIn: Array<string>;\n\tallowChildren: Array<string>;\n\tallowAttributes: Array<string>;\n\n\tallowAttributesOf?: Array<string>;\n\tallowContentOf?: Array<string>;\n\tallowWhere?: Array<string>;\n\tinheritTypesFrom?: Array<string>;\n}\n\ntype TypeNames = Array<'isBlock' | 'isContent' | 'isInline' | 'isLimit' | 'isObject' | 'isSelectable'>;\n\n/**\n * A schema context &mdash; a list of ancestors of a given position in the document.\n *\n * Considering such position:\n *\n * ```xml\n * <$root>\n * \t<blockQuote>\n * \t\t<paragraph>\n * \t\t\t^\n * \t\t</paragraph>\n * \t</blockQuote>\n * </$root>\n * ```\n *\n * The context of this position is its {@link module:engine/model/position~Position#getAncestors lists of ancestors}:\n *\n *\t\t[ rootElement, blockQuoteElement, paragraphElement ]\n *\n * Contexts are used in the {@link module:engine/model/schema~Schema#event:checkChild `Schema#checkChild`} and\n * {@link module:engine/model/schema~Schema#event:checkAttribute `Schema#checkAttribute`} events as a definition\n * of a place in the document where the check occurs. The context instances are created based on the first arguments\n * of the {@link module:engine/model/schema~Schema#checkChild `Schema#checkChild()`} and\n * {@link module:engine/model/schema~Schema#checkAttribute `Schema#checkAttribute()`} methods so when\n * using these methods you need to use {@link module:engine/model/schema~SchemaContextDefinition}s.\n */\nexport class SchemaContext implements Iterable<SchemaContextItem> {\n\tprivate _items!: Array<SchemaContextItem>;\n\n\t/**\n\t * Creates an instance of the context.\n\t */\n\tconstructor( context: SchemaContextDefinition ) {\n\t\tif ( context instanceof SchemaContext ) {\n\t\t\treturn context;\n\t\t}\n\n\t\tlet items: Array<string | Item | DocumentFragment>;\n\n\t\tif ( typeof context == 'string' ) {\n\t\t\titems = [ context ];\n\t\t} else if ( !Array.isArray( context ) ) {\n\t\t\t// `context` is item or position.\n\t\t\t// Position#getAncestors() doesn't accept any parameters but it works just fine here.\n\t\t\titems = context.getAncestors( { includeSelf: true } );\n\t\t} else {\n\t\t\titems = context;\n\t\t}\n\n\t\tthis._items = items.map( mapContextItem );\n\t}\n\n\t/**\n\t * The number of items.\n\t */\n\tpublic get length(): number {\n\t\treturn this._items.length;\n\t}\n\n\t/**\n\t * The last item (the lowest node).\n\t */\n\tpublic get last(): SchemaContextItem {\n\t\treturn this._items[ this._items.length - 1 ]!;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all context items.\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<SchemaContextItem> {\n\t\treturn this._items[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns a new schema context instance with an additional item.\n\t *\n\t * Item can be added as:\n\t *\n\t * ```ts\n\t * const context = new SchemaContext( [ '$root' ] );\n\t *\n\t * // An element.\n\t * const fooElement = writer.createElement( 'fooElement' );\n\t * const newContext = context.push( fooElement ); // [ '$root', 'fooElement' ]\n\t *\n\t * // A text node.\n\t * const text = writer.createText( 'foobar' );\n\t * const newContext = context.push( text ); // [ '$root', '$text' ]\n\t *\n\t * // A string (element name).\n\t * const newContext = context.push( 'barElement' ); // [ '$root', 'barElement' ]\n\t * ```\n\t *\n\t * **Note** {@link module:engine/model/node~Node} that is already in the model tree will be added as the only item\n\t * (without ancestors).\n\t *\n\t * @param item An item that will be added to the current context.\n\t * @returns A new schema context instance with an additional item.\n\t */\n\tpublic push( item: string | Node ): SchemaContext {\n\t\tconst ctx = new SchemaContext( [ item ] );\n\n\t\tctx._items = [ ...this._items, ...ctx._items ];\n\n\t\treturn ctx;\n\t}\n\n\t/**\n\t * Gets an item on the given index.\n\t */\n\tpublic getItem( index: number ): SchemaContextItem {\n\t\treturn this._items[ index ];\n\t}\n\n\t/**\n\t * Returns the names of items.\n\t */\n\tpublic* getNames(): IterableIterator<string> {\n\t\tyield* this._items.map( item => item.name );\n\t}\n\n\t/**\n\t * Checks whether the context ends with the given nodes.\n\t *\n\t * ```ts\n\t * const ctx = new SchemaContext( [ rootElement, paragraphElement, textNode ] );\n\t *\n\t * ctx.endsWith( '$text' ); // -> true\n\t * ctx.endsWith( 'paragraph $text' ); // -> true\n\t * ctx.endsWith( '$root' ); // -> false\n\t * ctx.endsWith( 'paragraph' ); // -> false\n\t * ```\n\t */\n\tpublic endsWith( query: string ): boolean {\n\t\treturn Array.from( this.getNames() ).join( ' ' ).endsWith( query );\n\t}\n\n\t/**\n\t * Checks whether the context starts with the given nodes.\n\t *\n\t * ```ts\n\t * const ctx = new SchemaContext( [ rootElement, paragraphElement, textNode ] );\n\t *\n\t * ctx.endsWith( '$root' ); // -> true\n\t * ctx.endsWith( '$root paragraph' ); // -> true\n\t * ctx.endsWith( '$text' ); // -> false\n\t * ctx.endsWith( 'paragraph' ); // -> false\n\t * ```\n\t */\n\tpublic startsWith( query: string ): boolean {\n\t\treturn Array.from( this.getNames() ).join( ' ' ).startsWith( query );\n\t}\n}\n\n/**\n * The definition of a {@link module:engine/model/schema~SchemaContext schema context}.\n *\n * Contexts can be created in multiple ways:\n *\n * * By defining a **node** – in this cases this node and all its ancestors will be used.\n * * By defining a **position** in the document – in this case all its ancestors will be used.\n * * By defining an **array of nodes** – in this case this array defines the entire context.\n * * By defining a **name of node** - in this case node will be \"mocked\". It is not recommended because context\n * will be unrealistic (e.g. attributes of these nodes are not specified). However, at times this may be the only\n * way to define the context (e.g. when checking some hypothetical situation).\n * * By defining an **array of node names** (potentially, mixed with real nodes) – The same as **name of node**\n * but it is possible to create a path.\n * * By defining a {@link module:engine/model/schema~SchemaContext} instance - in this case the same instance as provided\n * will be return.\n *\n * Examples of context definitions passed to the {@link module:engine/model/schema~Schema#checkChild `Schema#checkChild()`}\n * method:\n *\n * ```ts\n * // Assuming that we have a $root > blockQuote > paragraph structure, the following code\n * // will check node 'foo' in the following context:\n * // [ rootElement, blockQuoteElement, paragraphElement ]\n * const contextDefinition = paragraphElement;\n * const childToCheck = 'foo';\n * schema.checkChild( contextDefinition, childToCheck );\n *\n * // Also check in [ rootElement, blockQuoteElement, paragraphElement ].\n * schema.checkChild( model.createPositionAt( paragraphElement, 0 ), 'foo' );\n *\n * // Check in [ rootElement, paragraphElement ].\n * schema.checkChild( [ rootElement, paragraphElement ], 'foo' );\n *\n * // Check only fakeParagraphElement.\n * schema.checkChild( 'paragraph', 'foo' );\n *\n * // Check in [ fakeRootElement, fakeBarElement, paragraphElement ].\n * schema.checkChild( [ '$root', 'bar', paragraphElement ], 'foo' );\n * ```\n *\n * All these `checkChild()` calls will fire {@link module:engine/model/schema~Schema#event:checkChild `Schema#checkChild`}\n * events in which `args[ 0 ]` is an instance of the context. Therefore, you can write a listener like this:\n *\n * ```ts\n * schema.on( 'checkChild', ( evt, args ) => {\n * \tconst ctx = args[ 0 ];\n *\n * \tconsole.log( Array.from( ctx.getNames() ) );\n * } );\n * ```\n *\n * Which will log the following:\n *\n * ```ts\n * [ '$root', 'blockQuote', 'paragraph' ]\n * [ '$root', 'paragraph' ]\n * [ '$root', 'bar', 'paragraph' ]\n * ```\n *\n * Note: When using the {@link module:engine/model/schema~Schema#checkAttribute `Schema#checkAttribute()`} method\n * you may want to check whether a text node may have an attribute. A {@link module:engine/model/text~Text} is a\n * correct way to define a context so you can do this:\n *\n * ```ts\n * schema.checkAttribute( textNode, 'bold' );\n * ```\n *\n * But sometimes you want to check whether a text at a given position might've had some attribute,\n * in which case you can create a context by mixing in an array of elements with a `'$text'` string:\n *\n * ```ts\n * // Check in [ rootElement, paragraphElement, textNode ].\n * schema.checkChild( [ ...positionInParagraph.getAncestors(), '$text' ], 'bold' );\n * ```\n */\nexport type SchemaContextDefinition = Item | Position | SchemaContext | string | Array<string | Item>;\n\n/**\n * An item of the {@link module:engine/model/schema~SchemaContext schema context}.\n *\n * It contains 3 properties:\n *\n * * `name` – the name of this item,\n * * `* getAttributeKeys()` – a generator of keys of item attributes,\n * * `getAttribute( keyName )` – a method to get attribute values.\n *\n * The context item interface is a highly simplified version of {@link module:engine/model/node~Node} and its role\n * is to expose only the information which schema checks are able to provide (which is the name of the node and\n * node's attributes).\n *\n * ```ts\n * schema.on( 'checkChild', ( evt, args ) => {\n * \tconst ctx = args[ 0 ];\n * \tconst firstItem = ctx.getItem( 0 );\n *\n * \tconsole.log( firstItem.name ); // -> '$root'\n * \tconsole.log( firstItem.getAttribute( 'foo' ) ); // -> 'bar'\n * \tconsole.log( Array.from( firstItem.getAttributeKeys() ) ); // -> [ 'foo', 'faa' ]\n * } );\n * ```\n */\nexport interface SchemaContextItem {\n\tname: string;\n\tgetAttributeKeys(): Generator<string>;\n\tgetAttribute( keyName: string ): unknown;\n}\n\n/**\n * A structure containing additional metadata describing the attribute.\n *\n * See {@link module:engine/model/schema~Schema#setAttributeProperties `Schema#setAttributeProperties()`} for usage examples.\n */\nexport interface AttributeProperties {\n\n\t/**\n\t * Indicates that the attribute should be considered as a visual formatting, like `bold`, `italic` or\n\t * `fontSize` rather than semantic attribute (such as `src`, `listType`, etc.). For example, it is used by the \"Remove format\" feature.\n\t */\n\tisFormatting?: boolean;\n\n\t/**\n\t * Indicates that given text attribute should be copied to the next block when enter is pressed.\n\t */\n\tcopyOnEnter?: boolean;\n\n\t[ name: string ]: unknown;\n}\n\nexport type SchemaAttributeCheckCallback = ( context: SchemaContext, attributeName: string ) => unknown;\n\nexport type SchemaChildCheckCallback = ( ctx: SchemaContext, def: SchemaCompiledItemDefinition ) => unknown;\n\nfunction compileBaseItemRule( sourceItemRules: Array<SchemaItemDefinition>, itemName: string ): SchemaCompiledItemDefinitionInternal {\n\tconst itemRule = {\n\t\tname: itemName,\n\n\t\tallowIn: [],\n\t\tallowContentOf: [],\n\t\tallowWhere: [],\n\n\t\tallowAttributes: [],\n\t\tallowAttributesOf: [],\n\n\t\tallowChildren: [],\n\n\t\tinheritTypesFrom: []\n\t};\n\n\tcopyTypes( sourceItemRules, itemRule );\n\n\tcopyProperty( sourceItemRules, itemRule, 'allowIn' );\n\tcopyProperty( sourceItemRules, itemRule, 'allowContentOf' );\n\tcopyProperty( sourceItemRules, itemRule, 'allowWhere' );\n\n\tcopyProperty( sourceItemRules, itemRule, 'allowAttributes' );\n\tcopyProperty( sourceItemRules, itemRule, 'allowAttributesOf' );\n\n\tcopyProperty( sourceItemRules, itemRule, 'allowChildren' );\n\n\tcopyProperty( sourceItemRules, itemRule, 'inheritTypesFrom' );\n\n\tmakeInheritAllWork( sourceItemRules, itemRule );\n\n\treturn itemRule;\n}\n\nfunction compileAllowChildren(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst item = compiledDefinitions[ itemName ];\n\n\tfor ( const allowChildrenItem of item.allowChildren ) {\n\t\tconst allowedChildren = compiledDefinitions[ allowChildrenItem ];\n\n\t\t// The allowChildren property may point to an unregistered element.\n\t\tif ( !allowedChildren ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tallowedChildren.allowIn.push( itemName );\n\t}\n\n\t// The allowIn property already includes correct items, reset the allowChildren property\n\t// to avoid duplicates later when setting up compilation results.\n\titem.allowChildren.length = 0;\n}\n\nfunction compileAllowContentOf(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tfor ( const allowContentOfItemName of compiledDefinitions[ itemName ].allowContentOf! ) {\n\t\t// The allowContentOf property may point to an unregistered element.\n\t\tif ( compiledDefinitions[ allowContentOfItemName ] ) {\n\t\t\tconst allowedChildren = getAllowedChildren( compiledDefinitions, allowContentOfItemName );\n\n\t\t\tallowedChildren.forEach( allowedItem => {\n\t\t\t\tallowedItem.allowIn.push( itemName );\n\t\t\t} );\n\t\t}\n\t}\n\n\tdelete compiledDefinitions[ itemName ].allowContentOf;\n}\n\nfunction compileAllowWhere(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tfor ( const allowWhereItemName of compiledDefinitions[ itemName ].allowWhere! ) {\n\t\tconst inheritFrom = compiledDefinitions[ allowWhereItemName ];\n\n\t\t// The allowWhere property may point to an unregistered element.\n\t\tif ( inheritFrom ) {\n\t\t\tconst allowedIn = inheritFrom.allowIn;\n\n\t\t\tcompiledDefinitions[ itemName ].allowIn.push( ...allowedIn );\n\t\t}\n\t}\n\n\tdelete compiledDefinitions[ itemName ].allowWhere;\n}\n\nfunction compileAllowAttributesOf(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tfor ( const allowAttributeOfItem of compiledDefinitions[ itemName ].allowAttributesOf! ) {\n\t\tconst inheritFrom = compiledDefinitions[ allowAttributeOfItem ];\n\n\t\tif ( inheritFrom ) {\n\t\t\tconst inheritAttributes = inheritFrom.allowAttributes;\n\n\t\t\tcompiledDefinitions[ itemName ].allowAttributes.push( ...inheritAttributes );\n\t\t}\n\t}\n\n\tdelete compiledDefinitions[ itemName ].allowAttributesOf;\n}\n\nfunction compileInheritPropertiesFrom(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst item = compiledDefinitions[ itemName ];\n\n\tfor ( const inheritPropertiesOfItem of item.inheritTypesFrom! ) {\n\t\tconst inheritFrom = compiledDefinitions[ inheritPropertiesOfItem ];\n\n\t\tif ( inheritFrom ) {\n\t\t\tconst typeNames = Object.keys( inheritFrom ).filter( name => name.startsWith( 'is' ) ) as TypeNames;\n\n\t\t\tfor ( const name of typeNames ) {\n\t\t\t\tif ( !( name in item ) ) {\n\t\t\t\t\titem[ name ] = inheritFrom[ name ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tdelete item.inheritTypesFrom;\n}\n\n// Remove items which weren't registered (because it may break some checks or we'd need to complicate them).\n// Make sure allowIn doesn't contain repeated values.\nfunction cleanUpAllowIn(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\tconst existingItems = itemRule.allowIn.filter( itemToCheck => compiledDefinitions[ itemToCheck ] );\n\n\titemRule.allowIn = Array.from( new Set( existingItems ) );\n}\n\n// Setup allowChildren items based on allowIn.\nfunction setupAllowChildren(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\n\tfor ( const allowedParentItemName of itemRule.allowIn ) {\n\t\tconst allowedParentItem = compiledDefinitions[ allowedParentItemName ];\n\n\t\tallowedParentItem.allowChildren.push( itemName );\n\t}\n}\n\nfunction cleanUpAllowAttributes(\n\tcompiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>,\n\titemName: string\n) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\n\titemRule.allowAttributes = Array.from( new Set( itemRule.allowAttributes ) );\n}\n\nfunction copyTypes( sourceItemRules: Array<SchemaItemDefinition>, itemRule: SchemaCompiledItemDefinitionInternal ) {\n\tfor ( const sourceItemRule of sourceItemRules ) {\n\t\tconst typeNames = Object.keys( sourceItemRule ).filter( name => name.startsWith( 'is' ) ) as TypeNames;\n\n\t\tfor ( const name of typeNames ) {\n\t\t\titemRule[ name ] = !!sourceItemRule[ name ];\n\t\t}\n\t}\n}\n\nfunction copyProperty(\n\tsourceItemRules: Array<SchemaItemDefinition>,\n\titemRule: SchemaCompiledItemDefinitionInternal,\n\tpropertyName: 'allowIn' |\n\t\t'allowContentOf' |\n\t\t'allowWhere' |\n\t\t'allowAttributes' |\n\t\t'allowAttributesOf' |\n\t\t'allowChildren' |\n\t\t'inheritTypesFrom'\n) {\n\tfor ( const sourceItemRule of sourceItemRules ) {\n\t\tconst value = sourceItemRule[ propertyName ];\n\n\t\tif ( typeof value == 'string' ) {\n\t\t\titemRule[ propertyName ]!.push( value );\n\t\t} else if ( Array.isArray( value ) ) {\n\t\t\titemRule[ propertyName ]!.push( ...value );\n\t\t}\n\t}\n}\n\nfunction makeInheritAllWork( sourceItemRules: Array<SchemaItemDefinition>, itemRule: SchemaCompiledItemDefinitionInternal ) {\n\tfor ( const sourceItemRule of sourceItemRules ) {\n\t\tconst inheritFrom = sourceItemRule.inheritAllFrom;\n\n\t\tif ( inheritFrom ) {\n\t\t\titemRule.allowContentOf!.push( inheritFrom );\n\t\t\titemRule.allowWhere!.push( inheritFrom );\n\t\t\titemRule.allowAttributesOf!.push( inheritFrom );\n\t\t\titemRule.inheritTypesFrom!.push( inheritFrom );\n\t\t}\n\t}\n}\n\nfunction getAllowedChildren( compiledDefinitions: Record<string, SchemaCompiledItemDefinitionInternal>, itemName: string ) {\n\tconst itemRule = compiledDefinitions[ itemName ];\n\n\treturn getValues( compiledDefinitions ).filter( def => def.allowIn.includes( itemRule.name ) );\n}\n\nfunction getValues( obj: Record<string, SchemaCompiledItemDefinitionInternal> ) {\n\treturn Object.keys( obj ).map( key => obj[ key ] );\n}\n\nfunction mapContextItem( ctxItem: string | Item | DocumentFragment ): SchemaContextItem {\n\tif ( typeof ctxItem == 'string' || ctxItem.is( 'documentFragment' ) ) {\n\t\treturn {\n\t\t\tname: typeof ctxItem == 'string' ? ctxItem : '$documentFragment',\n\n\t\t\t* getAttributeKeys() {},\n\n\t\t\tgetAttribute() {}\n\t\t};\n\t} else {\n\t\treturn {\n\t\t\t// '$text' means text nodes and text proxies.\n\t\t\tname: ctxItem.is( 'element' ) ? ctxItem.name : '$text',\n\n\t\t\t* getAttributeKeys() {\n\t\t\t\tyield* ctxItem.getAttributeKeys();\n\t\t\t},\n\n\t\t\tgetAttribute( key ) {\n\t\t\t\treturn ctxItem.getAttribute( key );\n\t\t\t}\n\t\t};\n\t}\n}\n\n/**\n * Generator function returning values from provided walkers, switching between them at each iteration. If only one walker\n * is provided it will return data only from that walker.\n *\n * @param backward Walker iterating in backward direction.\n * @param forward Walker iterating in forward direction.\n * @returns Object returned at each iteration contains `value` and `walker` (informing which walker returned\n * given value) fields.\n */\nfunction* combineWalkers( backward: TreeWalker | undefined, forward: TreeWalker | undefined ) {\n\tlet done = false;\n\n\twhile ( !done ) {\n\t\tdone = true;\n\n\t\tif ( backward ) {\n\t\t\tconst step = backward.next();\n\n\t\t\tif ( !step.done ) {\n\t\t\t\tdone = false;\n\t\t\t\tyield {\n\t\t\t\t\twalker: backward,\n\t\t\t\t\tvalue: step.value\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\n\t\tif ( forward ) {\n\t\t\tconst step = forward.next();\n\n\t\t\tif ( !step.done ) {\n\t\t\t\tdone = false;\n\t\t\t\tyield {\n\t\t\t\t\twalker: forward,\n\t\t\t\t\tvalue: step.value\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Takes an array of non-intersecting ranges. For each of them gets minimal flat ranges covering that range and returns\n * all those minimal flat ranges.\n *\n * @param ranges Ranges to process.\n * @returns Minimal flat ranges of given `ranges`.\n */\nfunction* convertToMinimalFlatRanges( ranges: Iterable<Range> ): Iterable<Range> {\n\tfor ( const range of ranges ) {\n\t\tyield* range.getMinimalFlatRanges();\n\t}\n}\n\nfunction removeDisallowedAttributeFromNode( schema: Schema, node: Node, writer: Writer ) {\n\tfor ( const attribute of node.getAttributeKeys() ) {\n\t\tif ( !schema.checkAttribute( node, attribute ) ) {\n\t\t\twriter.removeAttribute( attribute, node );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/upcastdispatcher\n */\n\nimport ViewConsumable from './viewconsumable';\nimport ModelRange from '../model/range';\nimport ModelPosition from '../model/position';\nimport type ModelElement from '../model/element';\nimport type ModelNode from '../model/node';\nimport type ViewElement from '../view/element';\nimport type ViewText from '../view/text';\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type ModelDocumentFragment from '../model/documentfragment';\nimport type { default as Schema, SchemaContextDefinition } from '../model/schema';\nimport { SchemaContext } from '../model/schema'; // eslint-disable-line no-duplicate-imports\nimport type ModelWriter from '../model/writer';\nimport { isParagraphable, wrapInParagraph } from '../model/utils/autoparagraphing';\n\nimport type ViewItem from '../view/item';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Upcast dispatcher is a central point of the view-to-model conversion, which is a process of\n * converting a given {@link module:engine/view/documentfragment~DocumentFragment view document fragment} or\n * {@link module:engine/view/element~Element view element} into a correct model structure.\n *\n * During the conversion process, the dispatcher fires events for all {@link module:engine/view/node~Node view nodes}\n * from the converted view document fragment.\n * Special callbacks called \"converters\" should listen to these events in order to convert the view nodes.\n *\n * The second parameter of the callback is the `data` object with the following properties:\n *\n * * `data.viewItem` contains a {@link module:engine/view/node~Node view node} or a\n * {@link module:engine/view/documentfragment~DocumentFragment view document fragment}\n * that is converted at the moment and might be handled by the callback.\n * * `data.modelRange` is used to point to the result\n * of the current conversion (e.g. the element that is being inserted)\n * and is always a {@link module:engine/model/range~Range} when the conversion succeeds.\n * * `data.modelCursor` is a {@link module:engine/model/position~Position position} on which the converter should insert\n * the newly created items.\n *\n * The third parameter of the callback is an instance of {@link module:engine/conversion/upcastdispatcher~UpcastConversionApi}\n * which provides additional tools for converters.\n *\n * You can read more about conversion in the {@glink framework/deep-dive/conversion/upcast Upcast conversion} guide.\n *\n * Examples of event-based converters:\n *\n * ```ts\n * // A converter for links (<a>).\n * editor.data.upcastDispatcher.on( 'element:a', ( evt, data, conversionApi ) => {\n * \tif ( conversionApi.consumable.consume( data.viewItem, { name: true, attributes: [ 'href' ] } ) ) {\n * \t\t// The <a> element is inline and is represented by an attribute in the model.\n * \t\t// This is why you need to convert only children.\n * \t\tconst { modelRange } = conversionApi.convertChildren( data.viewItem, data.modelCursor );\n *\n * \t\tfor ( let item of modelRange.getItems() ) {\n * \t\t\tif ( conversionApi.schema.checkAttribute( item, 'linkHref' ) ) {\n * \t\t\t\tconversionApi.writer.setAttribute( 'linkHref', data.viewItem.getAttribute( 'href' ), item );\n * \t\t\t}\n * \t\t}\n * \t}\n * } );\n *\n * // Convert <p> element's font-size style.\n * // Note: You should use a low-priority observer in order to ensure that\n * // it is executed after the element-to-element converter.\n * editor.data.upcastDispatcher.on( 'element:p', ( evt, data, conversionApi ) => {\n * \tconst { consumable, schema, writer } = conversionApi;\n *\n * \tif ( !consumable.consume( data.viewItem, { style: 'font-size' } ) ) {\n * \t\treturn;\n * \t}\n *\n * \tconst fontSize = data.viewItem.getStyle( 'font-size' );\n *\n * \t// Do not go for the model element after data.modelCursor because it might happen\n * \t// that a single view element was converted to multiple model elements. Get all of them.\n * \tfor ( const item of data.modelRange.getItems( { shallow: true } ) ) {\n * \t\tif ( schema.checkAttribute( item, 'fontSize' ) ) {\n * \t\t\twriter.setAttribute( 'fontSize', fontSize, item );\n * \t\t}\n * \t}\n * }, { priority: 'low' } );\n *\n * // Convert all elements which have no custom converter into a paragraph (autoparagraphing).\n * editor.data.upcastDispatcher.on( 'element', ( evt, data, conversionApi ) => {\n * \t// Check if an element can be converted.\n * \tif ( !conversionApi.consumable.test( data.viewItem, { name: data.viewItem.name } ) ) {\n * \t\t// When an element is already consumed by higher priority converters, do nothing.\n * \t\treturn;\n * \t}\n *\n * \tconst paragraph = conversionApi.writer.createElement( 'paragraph' );\n *\n * \t// Try to safely insert a paragraph at the model cursor - it will find an allowed parent for the current element.\n * \tif ( !conversionApi.safeInsert( paragraph, data.modelCursor ) ) {\n * \t\t// When an element was not inserted, it means that you cannot insert a paragraph at this position.\n * \t\treturn;\n * \t}\n *\n * \t// Consume the inserted element.\n * \tconversionApi.consumable.consume( data.viewItem, { name: data.viewItem.name } ) );\n *\n * \t// Convert the children to a paragraph.\n * \tconst { modelRange } = conversionApi.convertChildren( data.viewItem,  paragraph ) );\n *\n * \t// Update `modelRange` and `modelCursor` in the `data` as a conversion result.\n * \tconversionApi.updateConversionResult( paragraph, data );\n * }, { priority: 'low' } );\n * ```\n *\n * @fires viewCleanup\n * @fires element\n * @fires text\n * @fires documentFragment\n */\nexport default class UpcastDispatcher extends EmitterMixin() {\n\t/**\n\t * An interface passed by the dispatcher to the event callbacks.\n\t */\n\tpublic conversionApi: UpcastConversionApi;\n\n\t/**\n\t * The list of elements that were created during splitting.\n\t *\n\t * After the conversion process, the list is cleared.\n\t */\n\tprivate _splitParts = new Map<ModelElement, Array<ModelElement>>();\n\n\t/**\n\t * The list of cursor parent elements that were created during splitting.\n\t *\n\t * After the conversion process the list is cleared.\n\t */\n\tprivate _cursorParents = new Map<ModelNode, ModelElement | ModelDocumentFragment>();\n\n\t/**\n\t * The position in the temporary structure where the converted content is inserted. The structure reflects the context of\n\t * the target position where the content will be inserted. This property is built based on the context parameter of the\n\t * convert method.\n\t */\n\tprivate _modelCursor: ModelPosition | null = null;\n\n\t/**\n\t * The list of elements that were created during the splitting but should not get removed on conversion end even if they are empty.\n\t *\n\t * The list is cleared after the conversion process.\n\t */\n\tprivate _emptyElementsToKeep = new Set<ModelElement>();\n\n\t/**\n\t * Creates an upcast dispatcher that operates using the passed API.\n\t *\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi\n\t * @param conversionApi Additional properties for an interface that will be passed to events fired\n\t * by the upcast dispatcher.\n\t */\n\tconstructor( conversionApi: Pick<UpcastConversionApi, 'schema'> ) {\n\t\tsuper();\n\n\t\tthis.conversionApi = {\n\t\t\t...conversionApi,\n\t\t\tconsumable: null as any,\n\t\t\twriter: null as any,\n\t\t\tstore: null,\n\t\t\tconvertItem: ( viewItem, modelCursor ) => this._convertItem( viewItem, modelCursor ),\n\t\t\tconvertChildren: ( viewElement, positionOrElement ) => this._convertChildren( viewElement, positionOrElement ),\n\t\t\tsafeInsert: ( modelNode, position ) => this._safeInsert( modelNode, position ),\n\t\t\tupdateConversionResult: ( modelElement, data ) => this._updateConversionResult( modelElement, data ),\n\t\t\t// Advanced API - use only if custom position handling is needed.\n\t\t\tsplitToAllowedParent: ( modelNode, modelCursor ) => this._splitToAllowedParent( modelNode, modelCursor ),\n\t\t\tgetSplitParts: modelElement => this._getSplitParts( modelElement ),\n\t\t\tkeepEmptyElement: modelElement => this._keepEmptyElement( modelElement )\n\t\t};\n\t}\n\n\t/**\n\t * Starts the conversion process. The entry point for the conversion.\n\t *\n\t * @fires element\n\t * @fires text\n\t * @fires documentFragment\n\t * @param viewElement The part of the view to be converted.\n\t * @param writer An instance of the model writer.\n\t * @param context Elements will be converted according to this context.\n\t * @returns Model data that is the result of the conversion process\n\t * wrapped in `DocumentFragment`. Converted marker elements will be set as the document fragment's\n\t * {@link module:engine/model/documentfragment~DocumentFragment#markers static markers map}.\n\t */\n\tpublic convert(\n\t\tviewElement: ViewElement | ViewDocumentFragment,\n\t\twriter: ModelWriter,\n\t\tcontext: SchemaContextDefinition = [ '$root' ]\n\t): ModelDocumentFragment {\n\t\tthis.fire<UpcastViewCleanupEvent>( 'viewCleanup', viewElement );\n\n\t\t// Create context tree and set position in the top element.\n\t\t// Items will be converted according to this position.\n\t\tthis._modelCursor = createContextTree( context, writer )!;\n\n\t\t// Store writer in conversion as a conversion API\n\t\t// to be sure that conversion process will use the same batch.\n\t\tthis.conversionApi.writer = writer;\n\n\t\t// Create consumable values list for conversion process.\n\t\tthis.conversionApi.consumable = ViewConsumable.createFrom( viewElement );\n\n\t\t// Custom data stored by converter for conversion process.\n\t\tthis.conversionApi.store = {};\n\n\t\t// Do the conversion.\n\t\tconst { modelRange } = this._convertItem( viewElement, this._modelCursor );\n\n\t\t// Conversion result is always a document fragment so let's create it.\n\t\tconst documentFragment = writer.createDocumentFragment();\n\n\t\t// When there is a conversion result.\n\t\tif ( modelRange ) {\n\t\t\t// Remove all empty elements that were create while splitting.\n\t\t\tthis._removeEmptyElements();\n\n\t\t\t// Move all items that were converted in context tree to the document fragment.\n\t\t\tfor ( const item of Array.from( this._modelCursor.parent.getChildren() ) ) {\n\t\t\t\twriter.append( item, documentFragment );\n\t\t\t}\n\n\t\t\t// Extract temporary markers elements from model and set as static markers collection.\n\t\t\t( documentFragment as any ).markers = extractMarkersFromModelFragment( documentFragment, writer );\n\t\t}\n\n\t\t// Clear context position.\n\t\tthis._modelCursor = null;\n\n\t\t// Clear split elements & parents lists.\n\t\tthis._splitParts.clear();\n\t\tthis._cursorParents.clear();\n\t\tthis._emptyElementsToKeep.clear();\n\n\t\t// Clear conversion API.\n\t\t( this.conversionApi as any ).writer = null;\n\t\tthis.conversionApi.store = null;\n\n\t\t// Return fragment as conversion result.\n\t\treturn documentFragment;\n\t}\n\n\t/**\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#convertItem\n\t */\n\tprivate _convertItem( viewItem: ViewItem | ViewDocumentFragment, modelCursor: ModelPosition ): {\n\t\tmodelRange: ModelRange | null;\n\t\tmodelCursor: ModelPosition;\n\t} {\n\t\tconst data: UpcastConversionData = { viewItem, modelCursor, modelRange: null };\n\n\t\tif ( viewItem.is( 'element' ) ) {\n\t\t\tthis.fire<UpcastElementEvent>(\n\t\t\t\t`element:${ viewItem.name }`,\n\t\t\t\tdata as UpcastConversionData<ViewElement>,\n\t\t\t\tthis.conversionApi\n\t\t\t);\n\t\t} else if ( viewItem.is( '$text' ) ) {\n\t\t\tthis.fire<UpcastTextEvent>(\n\t\t\t\t'text',\n\t\t\t\tdata as UpcastConversionData<ViewText>,\n\t\t\t\tthis.conversionApi\n\t\t\t);\n\t\t} else {\n\t\t\tthis.fire<UpcastDocumentFragmentEvent>(\n\t\t\t\t'documentFragment',\n\t\t\t\tdata as UpcastConversionData<ViewDocumentFragment>,\n\t\t\t\tthis.conversionApi\n\t\t\t);\n\t\t}\n\n\t\t// Handle incorrect conversion result.\n\t\tif ( data.modelRange && !( data.modelRange instanceof ModelRange ) ) {\n\t\t\t/**\n\t\t\t * Incorrect conversion result was dropped.\n\t\t\t *\n\t\t\t * {@link module:engine/model/range~Range Model range} should be a conversion result.\n\t\t\t *\n\t\t\t * @error view-conversion-dispatcher-incorrect-result\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'view-conversion-dispatcher-incorrect-result', this );\n\t\t}\n\n\t\treturn { modelRange: data.modelRange, modelCursor: data.modelCursor };\n\t}\n\n\t/**\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#convertChildren\n\t */\n\tprivate _convertChildren(\n\t\tviewItem: ViewElement | ViewDocumentFragment,\n\t\telementOrModelCursor: ModelPosition | ModelElement\n\t): {\n\t\tmodelRange: ModelRange;\n\t\tmodelCursor: ModelPosition;\n\t} {\n\t\tlet nextModelCursor = elementOrModelCursor.is( 'position' ) ?\n\t\t\telementOrModelCursor : ModelPosition._createAt( elementOrModelCursor, 0 );\n\n\t\tconst modelRange = new ModelRange( nextModelCursor );\n\n\t\tfor ( const viewChild of Array.from( viewItem.getChildren() ) ) {\n\t\t\tconst result = this._convertItem( viewChild, nextModelCursor );\n\n\t\t\tif ( result.modelRange instanceof ModelRange ) {\n\t\t\t\t( modelRange as any ).end = result.modelRange.end;\n\t\t\t\tnextModelCursor = result.modelCursor;\n\t\t\t}\n\t\t}\n\n\t\treturn { modelRange, modelCursor: nextModelCursor };\n\t}\n\n\t/**\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#safeInsert\n\t */\n\tprivate _safeInsert(\n\t\tmodelNode: ModelNode,\n\t\tposition: ModelPosition\n\t): boolean {\n\t\t// Find allowed parent for element that we are going to insert.\n\t\t// If current parent does not allow to insert element but one of the ancestors does\n\t\t// then split nodes to allowed parent.\n\t\tconst splitResult = this._splitToAllowedParent( modelNode, position );\n\n\t\t// When there is no split result it means that we can't insert element to model tree, so let's skip it.\n\t\tif ( !splitResult ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Insert element on allowed position.\n\t\tthis.conversionApi.writer!.insert( modelNode, splitResult.position );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#updateConversionResult\n\t */\n\tprivate _updateConversionResult( modelElement: ModelElement, data: UpcastConversionData ): void {\n\t\tconst parts = this._getSplitParts( modelElement );\n\n\t\tconst writer = this.conversionApi.writer!;\n\n\t\t// Set conversion result range - only if not set already.\n\t\tif ( !data.modelRange ) {\n\t\t\tdata.modelRange = writer.createRange(\n\t\t\t\twriter.createPositionBefore( modelElement ),\n\t\t\t\twriter.createPositionAfter( parts[ parts.length - 1 ] )\n\t\t\t);\n\t\t}\n\n\t\tconst savedCursorParent = this._cursorParents.get( modelElement );\n\n\t\t// Now we need to check where the `modelCursor` should be.\n\t\tif ( savedCursorParent ) {\n\t\t\t// If we split parent to insert our element then we want to continue conversion in the new part of the split parent.\n\t\t\t//\n\t\t\t// before: <allowed><notAllowed>foo[]</notAllowed></allowed>\n\t\t\t// after:  <allowed><notAllowed>foo</notAllowed> <converted></converted> <notAllowed>[]</notAllowed></allowed>\n\n\t\t\tdata.modelCursor = writer.createPositionAt( savedCursorParent, 0 );\n\t\t} else {\n\t\t\t// Otherwise just continue after inserted element.\n\n\t\t\tdata.modelCursor = data.modelRange.end;\n\t\t}\n\t}\n\n\t/**\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#splitToAllowedParent\n\t */\n\tprivate _splitToAllowedParent( node: ModelNode, modelCursor: ModelPosition ): {\n\t\tposition: ModelPosition;\n\t\tcursorParent?: ModelElement | ModelDocumentFragment;\n\t} | null {\n\t\tconst { schema, writer } = this.conversionApi;\n\n\t\t// Try to find allowed parent.\n\t\tlet allowedParent = schema.findAllowedParent( modelCursor, node );\n\n\t\tif ( allowedParent ) {\n\t\t\t// When current position parent allows to insert node then return this position.\n\t\t\tif ( allowedParent === modelCursor.parent ) {\n\t\t\t\treturn { position: modelCursor };\n\t\t\t}\n\n\t\t\t// When allowed parent is in context tree (it's outside the converted tree).\n\t\t\tif ( this._modelCursor!.parent.getAncestors().includes( allowedParent ) ) {\n\t\t\t\tallowedParent = null;\n\t\t\t}\n\t\t}\n\n\t\tif ( !allowedParent ) {\n\t\t\t// Check if the node wrapped with a paragraph would be accepted by the schema.\n\t\t\tif ( !isParagraphable( modelCursor, node, schema ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\tposition: wrapInParagraph( modelCursor, writer! )\n\t\t\t};\n\t\t}\n\n\t\t// Split element to allowed parent.\n\t\tconst splitResult = this.conversionApi.writer!.split( modelCursor, allowedParent );\n\n\t\t// Using the range returned by `model.Writer#split`, we will pair original elements with their split parts.\n\t\t//\n\t\t// The range returned from the writer spans \"over the split\" or, precisely saying, from the end of the original element (the one\n\t\t// that got split) to the beginning of the other part of that element:\n\t\t//\n\t\t// <limit><a><b><c>X[]Y</c></b><a></limit> ->\n\t\t// <limit><a><b><c>X[</c></b></a><a><b><c>]Y</c></b></a>\n\t\t//\n\t\t// After the split there cannot be any full node between the positions in `splitRange`. The positions are touching.\n\t\t// Also, because of how splitting works, it is easy to notice, that \"closing tags\" are in the reverse order than \"opening tags\".\n\t\t// Also, since we split all those elements, each of them has to have the other part.\n\t\t//\n\t\t// With those observations in mind, we will pair the original elements with their split parts by saving \"closing tags\" and matching\n\t\t// them with \"opening tags\" in the reverse order. For that we can use a stack.\n\t\tconst stack: Array<ModelElement> = [];\n\n\t\tfor ( const treeWalkerValue of splitResult.range.getWalker() ) {\n\t\t\tif ( treeWalkerValue.type == 'elementEnd' ) {\n\t\t\t\tstack.push( treeWalkerValue.item as ModelElement );\n\t\t\t} else {\n\t\t\t\t// There should not be any text nodes after the element is split, so the only other value is `elementStart`.\n\t\t\t\tconst originalPart = stack.pop();\n\t\t\t\tconst splitPart = treeWalkerValue.item as ModelElement;\n\n\t\t\t\tthis._registerSplitPair( originalPart!, splitPart );\n\t\t\t}\n\t\t}\n\n\t\tconst cursorParent = splitResult.range.end.parent;\n\t\tthis._cursorParents.set( node, cursorParent );\n\n\t\treturn {\n\t\t\tposition: splitResult.position,\n\t\t\tcursorParent\n\t\t};\n\t}\n\n\t/**\n\t * Registers that a `splitPart` element is a split part of the `originalPart` element.\n\t *\n\t * The data set by this method is used by {@link #_getSplitParts} and {@link #_removeEmptyElements}.\n\t */\n\tprivate _registerSplitPair( originalPart: ModelElement, splitPart: ModelElement ): void {\n\t\tif ( !this._splitParts.has( originalPart ) ) {\n\t\t\tthis._splitParts.set( originalPart, [ originalPart ] );\n\t\t}\n\n\t\tconst list = this._splitParts.get( originalPart )!;\n\n\t\tthis._splitParts.set( splitPart, list );\n\t\tlist.push( splitPart );\n\t}\n\n\t/**\n\t * @see module:engine/conversion/upcastdispatcher~UpcastConversionApi#getSplitParts\n\t */\n\tprivate _getSplitParts( element: ModelElement ): Array<ModelElement> {\n\t\tlet parts: Array<ModelElement>;\n\n\t\tif ( !this._splitParts.has( element ) ) {\n\t\t\tparts = [ element ];\n\t\t} else {\n\t\t\tparts = this._splitParts.get( element )!;\n\t\t}\n\n\t\treturn parts;\n\t}\n\n\t/**\n\t * Mark an element that were created during the splitting to not get removed on conversion end even if it is empty.\n\t */\n\tprivate _keepEmptyElement( element: ModelElement ): void {\n\t\tthis._emptyElementsToKeep.add( element );\n\t}\n\n\t/**\n\t * Checks if there are any empty elements created while splitting and removes them.\n\t *\n\t * This method works recursively to re-check empty elements again after at least one element was removed in the initial call,\n\t * as some elements might have become empty after other empty elements were removed from them.\n\t */\n\tprivate _removeEmptyElements(): void {\n\t\tlet anyRemoved = false;\n\n\t\tfor ( const element of this._splitParts.keys() ) {\n\t\t\tif ( element.isEmpty && !this._emptyElementsToKeep.has( element ) ) {\n\t\t\t\tthis.conversionApi.writer!.remove( element );\n\t\t\t\tthis._splitParts.delete( element );\n\n\t\t\t\tanyRemoved = true;\n\t\t\t}\n\t\t}\n\n\t\tif ( anyRemoved ) {\n\t\t\tthis._removeEmptyElements();\n\t\t}\n\t}\n}\n\n/**\n * Fired before the first conversion event, at the beginning of the upcast (view-to-model conversion) process.\n *\n * @eventName ~UpcastDispatcher#viewCleanup\n * @param viewItem A part of the view to be converted.\n */\nexport type UpcastViewCleanupEvent = {\n\tname: 'viewCleanup';\n\targs: [ ViewElement | ViewDocumentFragment ];\n};\n\ntype UpcastEvent<TName extends string, TItem extends ViewItem | ViewDocumentFragment> = {\n\tname: TName | `${ TName }:${ string }`;\n\targs: [ data: UpcastConversionData<TItem>, conversionApi: UpcastConversionApi ];\n};\n\n/**\n * Conversion data.\n *\n * **Note:** Keep in mind that this object is shared by reference between all conversion callbacks that will be called.\n * This means that callbacks can override values if needed, and these values will be available in other callbacks.\n */\nexport interface UpcastConversionData<TItem extends ViewItem | ViewDocumentFragment = ViewItem | ViewDocumentFragment> {\n\n\t/**\n\t * The converted item.\n\t */\n\tviewItem: TItem;\n\n\t/**\n\t * The position where the converter should start changes.\n\t * Change this value for the next converter to tell where the conversion should continue.\n\t */\n\tmodelCursor: ModelPosition;\n\n\t/**\n\t * The current state of conversion result. Every change to\n\t * the converted element should be reflected by setting or modifying this property.\n\t */\n\tmodelRange: ModelRange | null;\n}\n\n/**\n * Fired when an {@link module:engine/view/element~Element} is converted.\n *\n * `element` is a namespace event for a class of events. Names of actually called events follow the pattern of\n * `element:<elementName>` where `elementName` is the name of the converted element. This way listeners may listen to\n * a conversion of all or just specific elements.\n *\n * @eventName ~UpcastDispatcher#element\n * @param data The conversion data. Keep in mind that this object is shared by reference between all callbacks\n * that will be called. This means that callbacks can override values if needed, and these values\n * will be available in other callbacks.\n * @param conversionApi Conversion utilities to be used by the callback.\n */\nexport type UpcastElementEvent = UpcastEvent<'element', ViewElement>;\n\n/**\n * Fired when a {@link module:engine/view/text~Text} is converted.\n *\n * @eventName ~UpcastDispatcher#text\n * @see ~UpcastDispatcher#event:element\n */\nexport type UpcastTextEvent = UpcastEvent<'text', ViewText>;\n\n/**\n * Fired when a {@link module:engine/view/documentfragment~DocumentFragment} is converted.\n *\n * @eventName ~UpcastDispatcher#documentFragment\n * @see ~UpcastDispatcher#event:element\n */\nexport type UpcastDocumentFragmentEvent = UpcastEvent<'documentFragment', ViewDocumentFragment>;\n\n/**\n * Traverses given model item and searches elements which marks marker range. Found element is removed from\n * DocumentFragment but path of this element is stored in a Map which is then returned.\n *\n * @param modelItem Fragment of model.\n * @returns List of static markers.\n */\nfunction extractMarkersFromModelFragment( modelItem: ModelDocumentFragment, writer: ModelWriter ): Map<string, ModelRange> {\n\tconst markerElements = new Set<ModelElement>();\n\tconst markers = new Map<string, ModelRange>();\n\n\t// Create ModelTreeWalker.\n\tconst range = ModelRange._createIn( modelItem ).getItems();\n\n\t// Walk through DocumentFragment and collect marker elements.\n\tfor ( const item of range ) {\n\t\t// Check if current element is a marker.\n\t\tif ( item.is( 'element', '$marker' ) ) {\n\t\t\tmarkerElements.add( item );\n\t\t}\n\t}\n\n\t// Walk through collected marker elements store its path and remove its from the DocumentFragment.\n\tfor ( const markerElement of markerElements ) {\n\t\tconst markerName = markerElement.getAttribute( 'data-name' ) as string;\n\t\tconst currentPosition = writer.createPositionBefore( markerElement );\n\n\t\t// When marker of given name is not stored it means that we have found the beginning of the range.\n\t\tif ( !markers.has( markerName ) ) {\n\t\t\tmarkers.set( markerName, new ModelRange( currentPosition.clone() ) );\n\t\t// Otherwise is means that we have found end of the marker range.\n\t\t} else {\n\t\t\t( markers.get( markerName ) as any ).end = currentPosition.clone();\n\t\t}\n\n\t\t// Remove marker element from DocumentFragment.\n\t\twriter.remove( markerElement );\n\t}\n\n\treturn markers;\n}\n\n/**\n * Creates model fragment according to given context and returns position in the bottom (the deepest) element.\n */\nfunction createContextTree(\n\tcontextDefinition: SchemaContextDefinition,\n\twriter: ModelWriter\n): ModelPosition | undefined {\n\tlet position: ModelPosition | undefined;\n\n\tfor ( const item of new SchemaContext( contextDefinition ) ) {\n\t\tconst attributes: Record<string, unknown> = {};\n\n\t\tfor ( const key of item.getAttributeKeys() ) {\n\t\t\tattributes[ key ] = item.getAttribute( key );\n\t\t}\n\n\t\tconst current = writer.createElement( item.name, attributes );\n\n\t\tif ( position ) {\n\t\t\twriter.insert( current, position );\n\t\t}\n\n\t\tposition = ModelPosition._createAt( current, 0 );\n\t}\n\n\treturn position;\n}\n\n/**\n * A set of conversion utilities available as the third parameter of the\n * {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher upcast dispatcher}'s events.\n */\nexport interface UpcastConversionApi {\n\n\t/**\n\t * Stores information about what parts of the processed view item are still waiting to be handled. After a piece of view item\n\t * was converted, an appropriate consumable value should be\n\t * {@link module:engine/conversion/viewconsumable~ViewConsumable#consume consumed}.\n\t */\n\tconsumable: ViewConsumable;\n\n\t/**\n\t * The model's schema instance.\n\t */\n\tschema: Schema;\n\n\t/**\n\t * The {@link module:engine/model/writer~Writer} instance used to manipulate the data during conversion.\n\t */\n\twriter: ModelWriter;\n\n\t/**\n\t * Custom data stored by converters for the conversion process. Custom properties of this object can be defined and use to\n\t * pass parameters between converters.\n\t *\n\t * The difference between this property and the `data` parameter of\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element} is that the `data` parameters allow you\n\t * to pass parameters within a single event and `store` within the whole conversion.\n\t */\n\tstore: unknown;\n\n\t/**\n\t * Starts the conversion of a given item by firing an appropriate event.\n\t *\n\t * Every fired event is passed (as the first parameter) an object with the `modelRange` property. Every event may set and/or\n\t * modify that property. When all callbacks are done, the final value of the `modelRange` property is returned by this method.\n\t * The `modelRange` must be a {@link module:engine/model/range~Range model range} or `null` (as set by default).\n\t *\n\t * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n\t * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:text\n\t * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:documentFragment\n\t * @param viewItem Item to convert.\n\t * @param modelCursor The conversion position.\n\t * @returns The conversion result:\n\t * * `result.modelRange` The model range containing the result of the item conversion,\n\t * created and modified by callbacks attached to the fired event, or `null` if the conversion result was incorrect.\n\t * * `result.modelCursor` The position where the conversion should be continued.\n\t */\n\tconvertItem( viewItem: ViewItem, modelCursor: ModelPosition ): {\n\t\tmodelRange: ModelRange | null;\n\t\tmodelCursor: ModelPosition;\n\t};\n\n\t/**\n\t * Starts the conversion of all children of a given item by firing appropriate events for all the children.\n\t *\n\t * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n\t * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:text\n\t * @fires module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:documentFragment\n\t * @param viewElement An element whose children should be converted.\n\t * @param positionOrElement A position or an element of\n\t * the conversion.\n\t * @returns The conversion result:\n\t * * `result.modelRange` The model range containing the results of the conversion of all children\n\t * of the given item. When no child was converted, the range is collapsed.\n\t * * `result.modelCursor` The position where the conversion should be continued.\n\t */\n\tconvertChildren( viewElement: ViewElement | ViewDocumentFragment, positionOrElement: ModelPosition | ModelElement ): {\n\t\tmodelRange: ModelRange | null;\n\t\tmodelCursor: ModelPosition;\n\t};\n\n\t/**\n\t * Safely inserts an element to the document, checking the {@link module:engine/model/schema~Schema schema} to find an allowed parent\n\t * for an element that you are going to insert, starting from the given position. If the current parent does not allow to insert\n\t * the element but one of the ancestors does, then splits the nodes to allowed parent.\n\t *\n\t * If the schema allows to insert the node in a given position, nothing is split.\n\t *\n\t * If it was not possible to find an allowed parent, `false` is returned and nothing is split.\n\t *\n\t * Otherwise, ancestors are split.\n\t *\n\t * For instance, if `<imageBlock>` is not allowed in `<paragraph>` but is allowed in `$root`:\n\t *\n\t * ```\n\t * <paragraph>foo[]bar</paragraph>\n\t *\n\t * -> safe insert for `<imageBlock>` will split ->\n\t *\n\t * <paragraph>foo</paragraph>[]<paragraph>bar</paragraph>\n\t *```\n\t *\n\t * Example usage:\n\t *\n\t * ```\n\t * const myElement = conversionApi.writer.createElement( 'myElement' );\n\t *\n\t * if ( !conversionApi.safeInsert( myElement, data.modelCursor ) ) {\n\t * \treturn;\n\t * }\n\t *```\n\t *\n\t * The split result is saved and {@link #updateConversionResult} should be used to update the\n\t * {@link module:engine/conversion/upcastdispatcher~UpcastConversionData conversion data}.\n\t *\n\t * @param modelNode The node to insert.\n\t * @param position The position where an element is going to be inserted.\n\t * @returns The split result. If it was not possible to find an allowed position, `false` is returned.\n\t */\n\tsafeInsert( modelNode: ModelNode, position: ModelPosition ): boolean;\n\n\t/**\n\t * Updates the conversion result and sets a proper {@link module:engine/conversion/upcastdispatcher~UpcastConversionData#modelRange} and\n\t * the next {@link module:engine/conversion/upcastdispatcher~UpcastConversionData#modelCursor} after the conversion.\n\t * Used together with {@link #safeInsert}, it enables you to easily convert elements without worrying if the node was split\n\t * during the conversion of its children.\n\t *\n\t * A usage example in converter code:\n\t *\n\t * ```ts\n\t * const myElement = conversionApi.writer.createElement( 'myElement' );\n\t *\n\t * if ( !conversionApi.safeInsert( myElement, data.modelCursor ) ) {\n\t * \treturn;\n\t * }\n\t *\n\t * // Children conversion may split `myElement`.\n\t * conversionApi.convertChildren( data.viewItem, myElement );\n\t *\n\t * conversionApi.updateConversionResult( myElement, data );\n\t * ```\n\t */\n\tupdateConversionResult( modelElement: ModelElement, data: UpcastConversionData ): void;\n\n\t/**\n\t * Checks the {@link module:engine/model/schema~Schema schema} to find an allowed parent for an element that is going to be inserted\n\t * starting from the given position. If the current parent does not allow inserting an element but one of the ancestors does, the method\n\t * splits nodes to allowed parent.\n\t *\n\t * If the schema allows inserting the node in the given position, nothing is split and an object with that position is returned.\n\t *\n\t * If it was not possible to find an allowed parent, `null` is returned and nothing is split.\n\t *\n\t * Otherwise, ancestors are split and an object with a position and the copy of the split element is returned.\n\t *\n\t * For instance, if `<imageBlock>` is not allowed in `<paragraph>` but is allowed in `$root`:\n\t *\n\t * ```\n\t * <paragraph>foo[]bar</paragraph>\n\t *\n\t * -> split for `<imageBlock>` ->\n\t *\n\t * <paragraph>foo</paragraph>[]<paragraph>bar</paragraph>\n\t * ```\n\t *\n\t * In the example above, the position between `<paragraph>` elements will be returned as `position` and the second `paragraph`\n\t * as `cursorParent`.\n\t *\n\t * **Note:** This is an advanced method. For most cases {@link #safeInsert} and {@link #updateConversionResult} should be used.\n\t *\n\t * @param modelNode The node to insert.\n\t * @param modelCursor The position where the element is going to be inserted.\n\t * @returns The split result. If it was not possible to find an allowed position, `null` is returned.\n\t * * `position` The position between split elements.\n\t * * `cursorParent` The element inside which the cursor should be placed to\n\t * continue the conversion. When the element is not defined it means that there was no split.\n\t */\n\tsplitToAllowedParent( modelNode: ModelNode, modelCursor: ModelPosition ): {\n\t\tposition: ModelPosition;\n\t\tcursorParent?: ModelElement | ModelDocumentFragment;\n\t} | null;\n\n\t/**\n\t * Returns all the split parts of the given `element` that were created during upcasting through using {@link #splitToAllowedParent}.\n\t * It enables you to easily track these elements and continue processing them after they are split during the conversion of their\n\t * children.\n\t *\n\t * ```\n\t * <paragraph>Foo<imageBlock />bar<imageBlock />baz</paragraph> ->\n\t * <paragraph>Foo</paragraph><imageBlock /><paragraph>bar</paragraph><imageBlock /><paragraph>baz</paragraph>\n\t * ```\n\t *\n\t * For a reference to any of above paragraphs, the function will return all three paragraphs (the original element included),\n\t * sorted in the order of their creation (the original element is the first one).\n\t *\n\t * If the given `element` was not split, an array with a single element is returned.\n\t *\n\t * A usage example in the converter code:\n\t *\n\t * ```ts\n\t * const myElement = conversionApi.writer.createElement( 'myElement' );\n\t *\n\t * // Children conversion may split `myElement`.\n\t * conversionApi.convertChildren( data.viewItem, data.modelCursor );\n\t *\n\t * const splitParts = conversionApi.getSplitParts( myElement );\n\t * const lastSplitPart = splitParts[ splitParts.length - 1 ];\n\t *\n\t * // Setting `data.modelRange` basing on split parts:\n\t * data.modelRange = conversionApi.writer.createRange(\n\t * \tconversionApi.writer.createPositionBefore( myElement ),\n\t * \tconversionApi.writer.createPositionAfter( lastSplitPart )\n\t * );\n\t *\n\t * // Setting `data.modelCursor` to continue after the last split element:\n\t * data.modelCursor = conversionApi.writer.createPositionAfter( lastSplitPart );\n\t * ```\n\t *\n\t * **Tip:** If you are unable to get a reference to the original element (for example because the code is split into multiple converters\n\t * or even classes) but it has already been converted, you may want to check the first element in `data.modelRange`. This is a common\n\t * situation if an attribute converter is separated from an element converter.\n\t *\n\t * **Note:** This is an advanced method. For most cases {@link #safeInsert} and {@link #updateConversionResult} should be used.\n\t */\n\tgetSplitParts( modelElement: ModelElement ): Array<ModelElement>;\n\n\t/**\n\t * Mark an element that was created during splitting to not get removed on conversion end even if it is empty.\n\t *\n\t * **Note:** This is an advanced method. For most cases you will not need to keep the split empty element.\n\t */\n\tkeepEmptyElement( modelElement: ModelElement ): void;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/dataprocessor/basichtmlwriter\n */\n\n/* globals document */\n\nimport type HtmlWriter from './htmlwriter';\n\n/**\n * Basic HTML writer. It uses the native `innerHTML` property for basic conversion\n * from a document fragment to an HTML string.\n */\nexport default class BasicHtmlWriter implements HtmlWriter {\n\t/**\n\t * Returns an HTML string created from the document fragment.\n\t */\n\tpublic getHtml( fragment: DocumentFragment ): string {\n\t\tconst doc = document.implementation.createHTMLDocument( '' );\n\t\tconst container = doc.createElement( 'div' );\n\n\t\tcontainer.appendChild( fragment );\n\n\t\treturn container.innerHTML;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/dataprocessor/htmldataprocessor\n */\n\n/* globals DOMParser */\n\nimport BasicHtmlWriter from './basichtmlwriter';\nimport DomConverter from '../view/domconverter';\n\nimport type DataProcessor from './dataprocessor';\nimport type HtmlWriter from './htmlwriter';\nimport type ViewDocument from '../view/document';\nimport type ViewDocumentFragment from '../view/documentfragment';\nimport type { MatcherPattern } from '../view/matcher';\n\n/**\n * The HTML data processor class.\n * This data processor implementation uses HTML as input and output data.\n */\nexport default class HtmlDataProcessor implements DataProcessor {\n\t/**\n\t * A DOM parser instance used to parse an HTML string to an HTML document.\n\t */\n\tpublic domParser: DOMParser;\n\n\t/**\n\t * A DOM converter used to convert DOM elements to view elements.\n\t */\n\tpublic domConverter: DomConverter;\n\n\t/**\n\t * A basic HTML writer instance used to convert DOM elements to an HTML string.\n\t */\n\tpublic htmlWriter: HtmlWriter;\n\n\tpublic skipComments: boolean = true;\n\n\t/**\n\t * Creates a new instance of the HTML data processor class.\n\t *\n\t * @param document The view document instance.\n\t */\n\tconstructor( document: ViewDocument ) {\n\t\tthis.domParser = new DOMParser();\n\t\tthis.domConverter = new DomConverter( document, { renderingMode: 'data' } );\n\t\tthis.htmlWriter = new BasicHtmlWriter();\n\t}\n\n\t/**\n\t * Converts a provided {@link module:engine/view/documentfragment~DocumentFragment document fragment}\n\t * to data format &mdash; in this case to an HTML string.\n\t *\n\t * @returns HTML string.\n\t */\n\tpublic toData( viewFragment: ViewDocumentFragment ): string {\n\t\t// Convert view DocumentFragment to DOM DocumentFragment.\n\t\tconst domFragment = this.domConverter.viewToDom( viewFragment ) as DocumentFragment;\n\n\t\t// Convert DOM DocumentFragment to HTML output.\n\t\treturn this.htmlWriter.getHtml( domFragment );\n\t}\n\n\t/**\n\t * Converts the provided HTML string to a view tree.\n\t *\n\t * @param data An HTML string.\n\t * @returns A converted view element.\n\t */\n\tpublic toView( data: string ): ViewDocumentFragment {\n\t\t// Convert input HTML data to DOM DocumentFragment.\n\t\tconst domFragment = this._toDom( data );\n\n\t\t// Convert DOM DocumentFragment to view DocumentFragment.\n\t\treturn this.domConverter.domToView( domFragment, { skipComments: this.skipComments } ) as ViewDocumentFragment;\n\t}\n\n\t/**\n\t * Registers a {@link module:engine/view/matcher~MatcherPattern} for view elements whose content should be treated as raw data\n\t * and not processed during the conversion from the DOM to the view elements.\n\t *\n\t * The raw data can be later accessed by a\n\t * {@link module:engine/view/element~Element#getCustomProperty custom property of a view element} called `\"$rawContent\"`.\n\t *\n\t * @param pattern Pattern matching all view elements whose content should be treated as raw data.\n\t */\n\tpublic registerRawContentMatcher( pattern: MatcherPattern ): void {\n\t\tthis.domConverter.registerRawContentMatcher( pattern );\n\t}\n\n\t/**\n\t * If the processor is set to use marked fillers, it will insert `&nbsp;` fillers wrapped in `<span>` elements\n\t * (`<span data-cke-filler=\"true\">&nbsp;</span>`) instead of regular `&nbsp;` characters.\n\t *\n\t * This mode allows for a more precise handling of the block fillers (so they do not leak into the editor content) but\n\t * bloats the editor data with additional markup.\n\t *\n\t * This mode may be required by some features and will be turned on by them automatically.\n\t *\n\t * @param type Whether to use the default or the marked `&nbsp;` block fillers.\n\t */\n\tpublic useFillerType( type: 'default' | 'marked' ): void {\n\t\tthis.domConverter.blockFillerMode = type == 'marked' ? 'markedNbsp' : 'nbsp';\n\t}\n\n\t/**\n\t * Converts an HTML string to its DOM representation. Returns a document fragment containing nodes parsed from\n\t * the provided data.\n\t */\n\tprotected _toDom( data: string ): DocumentFragment {\n\t\t// Wrap data with a <body> tag so leading non-layout nodes (like <script>, <style>, HTML comment)\n\t\t// will be preserved in the body collection.\n\t\t// Do it only for data that is not a full HTML document.\n\t\tif ( !data.match( /<(?:html|body|head|meta)(?:\\s[^>]*)?>/i ) ) {\n\t\t\tdata = `<body>${ data }</body>`;\n\t\t}\n\n\t\tconst document = this.domParser.parseFromString( data, 'text/html' );\n\t\tconst fragment = document.createDocumentFragment();\n\t\tconst bodyChildNodes = document.body.childNodes;\n\n\t\twhile ( bodyChildNodes.length > 0 ) {\n\t\t\tfragment.appendChild( bodyChildNodes[ 0 ] );\n\t\t}\n\n\t\treturn fragment;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/controller/datacontroller\n */\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tObservableMixin\n} from '@ckeditor/ckeditor5-utils';\n\nimport Mapper from '../conversion/mapper';\n\nimport DowncastDispatcher, { type DowncastInsertEvent } from '../conversion/downcastdispatcher';\nimport { insertAttributesAndChildren, insertText } from '../conversion/downcasthelpers';\n\nimport UpcastDispatcher, {\n\ttype UpcastDocumentFragmentEvent,\n\ttype UpcastElementEvent,\n\ttype UpcastTextEvent\n} from '../conversion/upcastdispatcher';\nimport { convertText, convertToModelFragment } from '../conversion/upcasthelpers';\n\nimport ViewDocumentFragment from '../view/documentfragment';\nimport ViewDocument from '../view/document';\nimport ViewDowncastWriter from '../view/downcastwriter';\nimport type ViewElement from '../view/element';\nimport type { StylesProcessor } from '../view/stylesmap';\nimport type { MatcherPattern } from '../view/matcher';\n\nimport ModelRange from '../model/range';\nimport type Model from '../model/model';\nimport type ModelText from '../model/text';\nimport type ModelElement from '../model/element';\nimport type ModelTextProxy from '../model/textproxy';\nimport type ModelDocumentFragment from '../model/documentfragment';\nimport type { SchemaContextDefinition } from '../model/schema';\nimport type { BatchType } from '../model/batch';\nimport { autoParagraphEmptyRoots } from '../model/utils/autoparagraphing';\n\nimport HtmlDataProcessor from '../dataprocessor/htmldataprocessor';\nimport type DataProcessor from '../dataprocessor/dataprocessor';\n\nimport { logWarning } from '@ckeditor/ckeditor5-utils/src/ckeditorerror';\n\n/**\n * Controller for the data pipeline. The data pipeline controls how data is retrieved from the document\n * and set inside it. Hence, the controller features two methods which allow to {@link ~DataController#get get}\n * and {@link ~DataController#set set} data of the {@link ~DataController#model model}\n * using the given:\n *\n * * {@link module:engine/dataprocessor/dataprocessor~DataProcessor data processor},\n * * downcast converters,\n * * upcast converters.\n *\n * An instance of the data controller is always available in the {@link module:core/editor/editor~Editor#data `editor.data`}\n * property:\n *\n * ```ts\n * editor.data.get( { rootName: 'customRoot' } ); // -> '<p>Hello!</p>'\n * ```\n */\nexport default class DataController extends EmitterMixin() {\n\t/**\n\t * Data model.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * Mapper used for the conversion. It has no permanent bindings, because these are created while getting data and\n\t * ae cleared directly after the data are converted. However, the mapper is defined as a class property, because\n\t * it needs to be passed to the `DowncastDispatcher` as a conversion API.\n\t */\n\tpublic readonly mapper: Mapper;\n\n\t/**\n\t * Downcast dispatcher used by the {@link #get get method}. Downcast converters should be attached to it.\n\t */\n\tpublic readonly downcastDispatcher: DowncastDispatcher;\n\n\t/**\n\t * Upcast dispatcher used by the {@link #set set method}. Upcast converters should be attached to it.\n\t */\n\tpublic readonly upcastDispatcher: UpcastDispatcher;\n\n\t/**\n\t * The view document used by the data controller.\n\t */\n\tpublic readonly viewDocument: ViewDocument;\n\n\t/**\n\t * Styles processor used during the conversion.\n\t */\n\tpublic readonly stylesProcessor: StylesProcessor;\n\n\t/**\n\t * Data processor used specifically for HTML conversion.\n\t */\n\tpublic readonly htmlProcessor: HtmlDataProcessor;\n\n\t/**\n\t * Data processor used during the conversion.\n\t * Same instance as {@link #htmlProcessor} by default. Can be replaced at run time to handle different format, e.g. XML or Markdown.\n\t */\n\tpublic processor: DataProcessor;\n\n\t/**\n\t * The view downcast writer just for data conversion purposes, i.e. to modify\n\t * the {@link #viewDocument}.\n\t */\n\tprivate readonly _viewWriter: ViewDowncastWriter;\n\n\t/**\n\t * Creates a data controller instance.\n\t *\n\t * @param model Data model.\n\t * @param stylesProcessor The styles processor instance.\n\t */\n\tconstructor( model: Model, stylesProcessor: StylesProcessor ) {\n\t\tsuper();\n\n\t\tthis.model = model;\n\t\tthis.mapper = new Mapper();\n\n\t\tthis.downcastDispatcher = new DowncastDispatcher( {\n\t\t\tmapper: this.mapper,\n\t\t\tschema: model.schema\n\t\t} );\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent<ModelText | ModelTextProxy>>( 'insert:$text', insertText(), { priority: 'lowest' } );\n\t\tthis.downcastDispatcher.on<DowncastInsertEvent>( 'insert', insertAttributesAndChildren(), { priority: 'lowest' } );\n\n\t\tthis.upcastDispatcher = new UpcastDispatcher( {\n\t\t\tschema: model.schema\n\t\t} );\n\n\t\tthis.viewDocument = new ViewDocument( stylesProcessor );\n\t\tthis.stylesProcessor = stylesProcessor;\n\t\tthis.htmlProcessor = new HtmlDataProcessor( this.viewDocument );\n\t\tthis.processor = this.htmlProcessor;\n\t\tthis._viewWriter = new ViewDowncastWriter( this.viewDocument );\n\n\t\t// Define default converters for text and elements.\n\t\t//\n\t\t// Note that if there is no default converter for the element it will be skipped, for instance `<b>foo</b>` will be\n\t\t// converted to nothing. We therefore add `convertToModelFragment` as a last converter so it converts children of that\n\t\t// element to the document fragment so `<b>foo</b>` will still be converted to `foo` even if there is no converter for `<b>`.\n\t\tthis.upcastDispatcher.on<UpcastTextEvent>( 'text', convertText(), { priority: 'lowest' } );\n\t\tthis.upcastDispatcher.on<UpcastElementEvent>( 'element', convertToModelFragment(), { priority: 'lowest' } );\n\t\tthis.upcastDispatcher.on<UpcastDocumentFragmentEvent>( 'documentFragment', convertToModelFragment(), { priority: 'lowest' } );\n\n\t\tObservableMixin().prototype.decorate.call( this, 'init' as any );\n\t\tObservableMixin().prototype.decorate.call( this, 'set' as any );\n\t\tObservableMixin().prototype.decorate.call( this, 'get' as any );\n\t\tObservableMixin().prototype.decorate.call( this, 'toView' as any );\n\t\tObservableMixin().prototype.decorate.call( this, 'toModel' as any );\n\n\t\t// Fire the `ready` event when the initialization has completed. Such low-level listener offers the possibility\n\t\t// to plug into the initialization pipeline without interrupting the initialization flow.\n\t\tthis.on<DataControllerInitEvent>( 'init', () => {\n\t\t\tthis.fire<DataControllerReadyEvent>( 'ready' );\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Fix empty roots after DataController is 'ready' (note that the init method could be decorated and stopped).\n\t\t// We need to handle this event because initial data could be empty and the post-fixer would not get triggered.\n\t\tthis.on<DataControllerReadyEvent>( 'ready', () => {\n\t\t\tthis.model.enqueueChange( { isUndoable: false }, autoParagraphEmptyRoots );\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Returns the model's data converted by downcast dispatchers attached to {@link #downcastDispatcher} and\n\t * formatted by the {@link #processor data processor}.\n\t *\n\t * A warning is logged when you try to retrieve data for a detached root, as most probably this is a mistake. A detached root should\n\t * be treated like it is removed, and you should not save its data. Note, that the detached root data is always an empty string.\n\t *\n\t * @fires get\n\t * @param options Additional configuration for the retrieved data. `DataController` provides two optional\n\t * properties: `rootName` and `trim`. Other properties of this object are specified by various editor features.\n\t * @param options.rootName Root name. Default 'main'.\n\t * @param options.trim Whether returned data should be trimmed. This option is set to `empty` by default,\n\t * which means whenever editor content is considered empty, an empty string will be returned. To turn off trimming completely\n\t * use `'none'`. In such cases the exact content will be returned (for example a `<p>&nbsp;</p>` for an empty editor).\n\t * @returns Output data.\n\t */\n\tpublic get(\n\t\toptions: {\n\t\t\trootName?: string;\n\t\t\ttrim?: 'empty' | 'none';\n\t\t\t[ key: string ]: unknown;\n\t\t} = {}\n\t): string {\n\t\tconst { rootName = 'main', trim = 'empty' } = options;\n\n\t\tif ( !this._checkIfRootsExists( [ rootName ] ) ) {\n\t\t\t/**\n\t\t\t * Cannot get data from a non-existing root. This error is thrown when\n\t\t\t * {@link module:engine/controller/datacontroller~DataController#get `DataController#get()` method}\n\t\t\t * is called with a non-existent root name. For example, if there is an editor instance with only `main` root,\n\t\t\t * calling {@link module:engine/controller/datacontroller~DataController#get} like:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * data.get( { rootName: 'root2' } );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * will throw this error.\n\t\t\t *\n\t\t\t * @error datacontroller-get-non-existent-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-get-non-existent-root', this );\n\t\t}\n\n\t\tconst root = this.model.document.getRoot( rootName )!;\n\n\t\tif ( !root.isAttached() ) {\n\t\t\t/**\n\t\t\t * Retrieving document data for a detached root.\n\t\t\t *\n\t\t\t * This usually indicates an error as a detached root should be considered \"removed\" and should not be included in the\n\t\t\t * document data.\n\t\t\t *\n\t\t\t * @error datacontroller-get-detached-root\n\t\t\t */\n\t\t\tlogWarning( 'datacontroller-get-detached-root', this );\n\t\t}\n\n\t\tif ( trim === 'empty' && !this.model.hasContent( root, { ignoreWhitespaces: true } ) ) {\n\t\t\treturn '';\n\t\t}\n\n\t\treturn this.stringify( root, options );\n\t}\n\n\t/**\n\t * Returns the content of the given {@link module:engine/model/element~Element model's element} or\n\t * {@link module:engine/model/documentfragment~DocumentFragment model document fragment} converted by the downcast converters\n\t * attached to the {@link #downcastDispatcher} and formatted by the {@link #processor data processor}.\n\t *\n\t * @param modelElementOrFragment The element whose content will be stringified.\n\t * @param options Additional configuration passed to the conversion process.\n\t * @returns Output data.\n\t */\n\tpublic stringify(\n\t\tmodelElementOrFragment: ModelElement | ModelDocumentFragment,\n\t\toptions: Record<string, unknown> = {}\n\t): string {\n\t\t// Model -> view.\n\t\tconst viewDocumentFragment = this.toView( modelElementOrFragment, options );\n\n\t\t// View -> data.\n\t\treturn this.processor.toData( viewDocumentFragment );\n\t}\n\n\t/**\n\t * Returns the content of the given {@link module:engine/model/element~Element model element} or\n\t * {@link module:engine/model/documentfragment~DocumentFragment model document fragment} converted by the downcast\n\t * converters attached to {@link #downcastDispatcher} into a\n\t * {@link module:engine/view/documentfragment~DocumentFragment view document fragment}.\n\t *\n\t * @fires toView\n\t * @param modelElementOrFragment Element or document fragment whose content will be converted.\n\t * @param options Additional configuration that will be available through the\n\t * {@link module:engine/conversion/downcastdispatcher~DowncastConversionApi#options} during the conversion process.\n\t * @returns Output view DocumentFragment.\n\t */\n\tpublic toView(\n\t\tmodelElementOrFragment: ModelElement | ModelDocumentFragment,\n\t\toptions: Record<string, unknown> = {}\n\t): ViewDocumentFragment {\n\t\tconst viewDocument = this.viewDocument;\n\t\tconst viewWriter = this._viewWriter;\n\n\t\t// Clear bindings so the call to this method returns correct results.\n\t\tthis.mapper.clearBindings();\n\n\t\t// First, convert elements.\n\t\tconst modelRange = ModelRange._createIn( modelElementOrFragment );\n\t\tconst viewDocumentFragment = new ViewDocumentFragment( viewDocument );\n\n\t\tthis.mapper.bindElements( modelElementOrFragment, viewDocumentFragment );\n\n\t\t// Prepare list of markers.\n\t\t// For document fragment, simply take the markers assigned to this document fragment.\n\t\t// For model root, all markers in that root will be taken.\n\t\t// For model element, we need to check which markers are intersecting with this element and relatively modify the markers' ranges.\n\t\t// Collapsed markers at element boundary, although considered as not intersecting with the element, will also be returned.\n\t\tconst markers = modelElementOrFragment.is( 'documentFragment' ) ?\n\t\t\tmodelElementOrFragment.markers :\n\t\t\t_getMarkersRelativeToElement( modelElementOrFragment );\n\n\t\tthis.downcastDispatcher.convert( modelRange, markers, viewWriter, options );\n\n\t\treturn viewDocumentFragment;\n\t}\n\n\t/**\n\t * Sets the initial input data parsed by the {@link #processor data processor} and\n\t * converted by the {@link #upcastDispatcher view-to-model converters}.\n\t * Initial data can be only set to a document whose {@link module:engine/model/document~Document#version} is equal 0.\n\t *\n\t * **Note** This method is {@link module:utils/observablemixin~Observable#decorate decorated} which is\n\t * used by e.g. collaborative editing plugin that syncs remote data on init.\n\t *\n\t * When data is passed as a string, it is initialized on the default `main` root:\n\t *\n\t * ```ts\n\t * dataController.init( '<p>Foo</p>' ); // Initializes data on the `main` root only, as no other is specified.\n\t * ```\n\t *\n\t * To initialize data on a different root or multiple roots at once, an object containing `rootName` - `data` pairs should be passed:\n\t *\n\t * ```ts\n\t * dataController.init( { main: '<p>Foo</p>', title: '<h1>Bar</h1>' } ); // Initializes data on both the `main` and `title` roots.\n\t * ```\n\t *\n\t * @fires init\n\t * @param data Input data as a string or an object containing the `rootName` - `data`\n\t * pairs to initialize data on multiple roots at once.\n\t * @returns Promise that is resolved after the data is set on the editor.\n\t */\n\tpublic init( data: string | Record<string, string> ): Promise<void> {\n\t\tif ( this.model.document.version ) {\n\t\t\t/**\n\t\t\t * Cannot set initial data to a non-empty {@link module:engine/model/document~Document}.\n\t\t\t * Initial data should be set once, during the {@link module:core/editor/editor~Editor} initialization,\n\t\t\t * when the {@link module:engine/model/document~Document#version} is equal 0.\n\t\t\t *\n\t\t\t * @error datacontroller-init-document-not-empty\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-init-document-not-empty', this );\n\t\t}\n\n\t\tlet initialData: Record<string, string> = {};\n\n\t\tif ( typeof data === 'string' ) {\n\t\t\tinitialData.main = data; // Default root is 'main'. To initiate data on a different root, object should be passed.\n\t\t} else {\n\t\t\tinitialData = data;\n\t\t}\n\n\t\tif ( !this._checkIfRootsExists( Object.keys( initialData ) ) ) {\n\t\t\t/**\n\t\t\t * Cannot init data on a non-existent root. This error is thrown when\n\t\t\t * {@link module:engine/controller/datacontroller~DataController#init DataController#init() method}\n\t\t\t * is called with non-existent root name. For example, if there is an editor instance with only `main` root,\n\t\t\t * calling {@link module:engine/controller/datacontroller~DataController#init} like:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * data.init( { main: '<p>Foo</p>', root2: '<p>Bar</p>' } );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * will throw this error.\n\t\t\t *\n\t\t\t * @error datacontroller-init-non-existent-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-init-non-existent-root', this );\n\t\t}\n\n\t\tthis.model.enqueueChange( { isUndoable: false }, writer => {\n\t\t\tfor ( const rootName of Object.keys( initialData ) ) {\n\t\t\t\tconst modelRoot = this.model.document.getRoot( rootName )!;\n\n\t\t\t\twriter.insert( this.parse( initialData[ rootName ], modelRoot ), modelRoot, 0 );\n\t\t\t}\n\t\t} );\n\n\t\treturn Promise.resolve();\n\t}\n\n\t/**\n\t * Sets the input data parsed by the {@link #processor data processor} and\n\t * converted by the {@link #upcastDispatcher view-to-model converters}.\n\t * This method can be used any time to replace existing editor data with the new one without clearing the\n\t * {@link module:engine/model/document~Document#history document history}.\n\t *\n\t * This method also creates a batch with all the changes applied. If all you need is to parse data, use\n\t * the {@link #parse} method.\n\t *\n\t * When data is passed as a string it is set on the default `main` root:\n\t *\n\t * ```ts\n\t * dataController.set( '<p>Foo</p>' ); // Sets data on the `main` root, as no other is specified.\n\t * ```\n\t *\n\t * To set data on a different root or multiple roots at once, an object containing `rootName` - `data` pairs should be passed:\n\t *\n\t * ```ts\n\t * dataController.set( { main: '<p>Foo</p>', title: '<h1>Bar</h1>' } ); // Sets data on the `main` and `title` roots as specified.\n\t * ```\n\t *\n\t * To set the data with a preserved undo stack and add the change to the undo stack, set `{ isUndoable: true }` as a `batchType` option.\n\t *\n\t * ```ts\n\t * dataController.set( '<p>Foo</p>', { batchType: { isUndoable: true } } );\n\t * ```\n\t *\n\t * @fires set\n\t * @param data Input data as a string or an object containing the `rootName` - `data`\n\t * pairs to set data on multiple roots at once.\n\t * @param options Options for setting data.\n\t * @param options.batchType The batch type that will be used to create a batch for the changes applied by this method.\n\t * By default, the batch will be set as {@link module:engine/model/batch~Batch#isUndoable not undoable} and the undo stack will be\n\t * cleared after the new data is applied (all undo steps will be removed). If the batch type `isUndoable` flag is be set to `true`,\n\t * the undo stack will be preserved instead and not cleared when new data is applied.\n\t */\n\tpublic set( data: string | Record<string, string>, options: { batchType?: BatchType } = {} ): void {\n\t\tlet newData: Record<string, string> = {};\n\n\t\tif ( typeof data === 'string' ) {\n\t\t\tnewData.main = data; // The default root is 'main'. To set data on a different root, an object should be passed.\n\t\t} else {\n\t\t\tnewData = data;\n\t\t}\n\n\t\tif ( !this._checkIfRootsExists( Object.keys( newData ) ) ) {\n\t\t\t/**\n\t\t\t * Cannot set data on a non-existent root. This error is thrown when the\n\t\t\t * {@link module:engine/controller/datacontroller~DataController#set DataController#set() method}\n\t\t\t * is called with non-existent root name. For example, if there is an editor instance with only the default `main` root,\n\t\t\t * calling {@link module:engine/controller/datacontroller~DataController#set} like:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * data.set( { main: '<p>Foo</p>', root2: '<p>Bar</p>' } );\n\t\t\t * ```\n\t\t\t *\n\t\t\t * will throw this error.\n\t\t\t *\n\t\t\t * @error datacontroller-set-non-existent-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'datacontroller-set-non-existent-root', this );\n\t\t}\n\n\t\tthis.model.enqueueChange( options.batchType || {}, writer => {\n\t\t\twriter.setSelection( null );\n\t\t\twriter.removeSelectionAttribute( this.model.document.selection.getAttributeKeys() );\n\n\t\t\tfor ( const rootName of Object.keys( newData ) ) {\n\t\t\t\t// Save to model.\n\t\t\t\tconst modelRoot = this.model.document.getRoot( rootName )!;\n\n\t\t\t\twriter.remove( writer.createRangeIn( modelRoot ) );\n\t\t\t\twriter.insert( this.parse( newData[ rootName ], modelRoot ), modelRoot, 0 );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the data parsed by the {@link #processor data processor} and then converted by upcast converters\n\t * attached to the {@link #upcastDispatcher}.\n\t *\n\t * @see #set\n\t * @param data Data to parse.\n\t * @param context Base context in which the view will be converted to the model.\n\t * See: {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#convert}.\n\t * @returns Parsed data.\n\t */\n\tpublic parse( data: string, context: SchemaContextDefinition = '$root' ): ModelDocumentFragment {\n\t\t// data -> view\n\t\tconst viewDocumentFragment = this.processor.toView( data );\n\n\t\t// view -> model\n\t\treturn this.toModel( viewDocumentFragment, context );\n\t}\n\n\t/**\n\t * Returns the result of the given {@link module:engine/view/element~Element view element} or\n\t * {@link module:engine/view/documentfragment~DocumentFragment view document fragment} converted by the\n\t * {@link #upcastDispatcher view-to-model converters}, wrapped by {@link module:engine/model/documentfragment~DocumentFragment}.\n\t *\n\t * When marker elements were converted during the conversion process, it will be set as a document fragment's\n\t * {@link module:engine/model/documentfragment~DocumentFragment#markers static markers map}.\n\t *\n\t * @fires toModel\n\t * @param viewElementOrFragment The element or document fragment whose content will be converted.\n\t * @param context Base context in which the view will be converted to the model.\n\t * See: {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#convert}.\n\t * @returns Output document fragment.\n\t */\n\tpublic toModel(\n\t\tviewElementOrFragment: ViewElement | ViewDocumentFragment,\n\t\tcontext: SchemaContextDefinition = '$root'\n\t): ModelDocumentFragment {\n\t\treturn this.model.change( writer => {\n\t\t\treturn this.upcastDispatcher.convert( viewElementOrFragment, writer, context );\n\t\t} );\n\t}\n\n\t/**\n\t * Adds the style processor normalization rules.\n\t *\n\t * You can implement your own rules as well as use one of the available processor rules:\n\t *\n\t * * background: {@link module:engine/view/styles/background~addBackgroundRules}\n\t * * border: {@link module:engine/view/styles/border~addBorderRules}\n\t * * margin: {@link module:engine/view/styles/margin~addMarginRules}\n\t * * padding: {@link module:engine/view/styles/padding~addPaddingRules}\n\t */\n\tpublic addStyleProcessorRules( callback: ( stylesProcessor: StylesProcessor ) => void ): void {\n\t\tcallback( this.stylesProcessor );\n\t}\n\n\t/**\n\t * Registers a {@link module:engine/view/matcher~MatcherPattern} on an {@link #htmlProcessor htmlProcessor}\n\t * and a {@link #processor processor} for view elements whose content should be treated as raw data\n\t * and not processed during the conversion from DOM to view elements.\n\t *\n\t * The raw data can be later accessed by the {@link module:engine/view/element~Element#getCustomProperty view element custom property}\n\t * `\"$rawContent\"`.\n\t *\n\t * @param pattern Pattern matching all view elements whose content should be treated as a raw data.\n\t */\n\tpublic registerRawContentMatcher( pattern: MatcherPattern ): void {\n\t\t// No need to register the pattern if both the `htmlProcessor` and `processor` are the same instances.\n\t\tif ( this.processor && this.processor !== this.htmlProcessor ) {\n\t\t\tthis.processor.registerRawContentMatcher( pattern );\n\t\t}\n\n\t\tthis.htmlProcessor.registerRawContentMatcher( pattern );\n\t}\n\n\t/**\n\t * Removes all event listeners set by the DataController.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Checks whether all provided root names are actually existing editor roots.\n\t *\n\t * @param rootNames Root names to check.\n\t * @returns Whether all provided root names are existing editor roots.\n\t */\n\tprivate _checkIfRootsExists( rootNames: Array<string> ): boolean {\n\t\tfor ( const rootName of rootNames ) {\n\t\t\tif ( !this.model.document.getRoot( rootName ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n}\n\n/**\n * Event fired once the data initialization has finished.\n *\n * @eventName ~DataController#ready\n */\nexport type DataControllerReadyEvent = {\n\tname: 'ready';\n\targs: [];\n};\n\n/**\n * An event fired after the {@link ~DataController#init `init()` method} was run. It can be {@link ~DataController#listenTo listened to} in\n * order to adjust or modify the initialization flow. However, if the `init` event is stopped or prevented,\n * the {@link ~DataController#event:ready `ready` event} should be fired manually.\n *\n * The `init` event is fired by the decorated {@link ~DataController#init} method.\n * See {@link module:utils/observablemixin~Observable#decorate} for more information and samples.\n *\n * @eventName ~DataController#init\n */\nexport type DataControllerInitEvent = {\n\tname: 'init';\n\targs: [ Parameters<DataController[ 'init' ]> ];\n\treturn: ReturnType<DataController[ 'init' ]>;\n};\n\n/**\n * An event fired after {@link ~DataController#set set() method} has been run.\n *\n * The `set` event is fired by the decorated {@link ~DataController#set} method.\n * See {@link module:utils/observablemixin~Observable#decorate} for more information and samples.\n *\n * @eventName ~DataController#set\n */\nexport type DataControllerSetEvent = {\n\tname: 'set';\n\targs: [ Parameters<DataController[ 'set' ]> ];\n\treturn: ReturnType<DataController[ 'set' ]>;\n};\n\n/**\n * Event fired after the {@link ~DataController#get get() method} has been run.\n *\n * The `get` event is fired by the decorated {@link ~DataController#get} method.\n * See {@link module:utils/observablemixin~Observable#decorate} for more information and samples.\n *\n * @eventName ~DataController#get\n */\nexport type DataControllerGetEvent = {\n\tname: 'get';\n\targs: [ Parameters<DataController[ 'get' ]> ];\n\treturn: ReturnType<DataController[ 'get' ]>;\n};\n\n/**\n * Event fired after the {@link ~DataController#toView toView() method} has been run.\n *\n * The `toView` event is fired by the decorated {@link ~DataController#toView} method.\n * See {@link module:utils/observablemixin~Observable#decorate} for more information and samples.\n *\n * @eventName ~DataController#toView\n */\nexport type DataControllerToViewEvent = {\n\tname: 'toView';\n\targs: [ Parameters<DataController[ 'toView' ]> ];\n\treturn: ReturnType<DataController[ 'toView' ]>;\n};\n\n/**\n * Event fired after the {@link ~DataController#toModel toModel() method} has been run.\n *\n * The `toModel` event is fired by the decorated {@link ~DataController#toModel} method.\n * See {@link module:utils/observablemixin~Observable#decorate} for more information and samples.\n *\n * @eventName ~DataController#toModel\n */\nexport type DataControllerToModelEvent = {\n\tname: 'toModel';\n\targs: [ Parameters<DataController[ 'toModel' ]> ];\n\treturn: ReturnType<DataController[ 'toModel' ]>;\n};\n\n/**\n * Helper function for downcast conversion.\n *\n * Takes a document element (element that is added to a model document) and checks which markers are inside it. If the marker is collapsed\n * at element boundary, it is considered as contained inside the element and marker range is returned. Otherwise, if the marker is\n * intersecting with the element, the intersection is returned.\n */\nfunction _getMarkersRelativeToElement( element: ModelElement ): Map<string, ModelRange> {\n\tconst result: Array<[ string, ModelRange ]> = [];\n\tconst doc = element.root.document;\n\n\tif ( !doc ) {\n\t\treturn new Map();\n\t}\n\n\tconst elementRange = ModelRange._createIn( element );\n\n\tfor ( const marker of doc.model.markers ) {\n\t\tconst markerRange = marker.getRange();\n\n\t\tconst isMarkerCollapsed = markerRange.isCollapsed;\n\t\tconst isMarkerAtElementBoundary = markerRange.start.isEqual( elementRange.start ) || markerRange.end.isEqual( elementRange.end );\n\n\t\tif ( isMarkerCollapsed && isMarkerAtElementBoundary ) {\n\t\t\tresult.push( [ marker.name, markerRange ] );\n\t\t} else {\n\t\t\tconst updatedMarkerRange = elementRange.getIntersection( markerRange );\n\n\t\t\tif ( updatedMarkerRange ) {\n\t\t\t\tresult.push( [ marker.name, updatedMarkerRange ] );\n\t\t\t}\n\t\t}\n\t}\n\n\t// Sort the markers in a stable fashion to ensure that the order in which they are\n\t// added to the model's marker collection does not affect how they are\n\t// downcast. One particular use case that we are targeting here, is one where\n\t// two markers are adjacent but not overlapping, such as an insertion/deletion\n\t// suggestion pair representing the replacement of a range of text. In this\n\t// case, putting the markers in DOM order causes the first marker's end to be\n\t// serialized right after the second marker's start, while putting the markers\n\t// in reverse DOM order causes it to be right before the second marker's\n\t// start. So, we sort these in a way that ensures non-intersecting ranges are in\n\t// reverse DOM order, and intersecting ranges are in something approximating\n\t// reverse DOM order (since reverse DOM order doesn't have a precise meaning\n\t// when working with intersecting ranges).\n\tresult.sort( ( [ n1, r1 ], [ n2, r2 ] ) => {\n\t\tif ( r1.end.compareWith( r2.start ) !== 'after' ) {\n\t\t\t// m1.end <= m2.start -- m1 is entirely <= m2\n\t\t\treturn 1;\n\t\t} else if ( r1.start.compareWith( r2.end ) !== 'before' ) {\n\t\t\t// m1.start >= m2.end -- m1 is entirely >= m2\n\t\t\treturn -1;\n\t\t} else {\n\t\t\t// they overlap, so use their start positions as the primary sort key and\n\t\t\t// end positions as the secondary sort key\n\t\t\tswitch ( r1.start.compareWith( r2.start ) ) {\n\t\t\t\tcase 'before':\n\t\t\t\t\treturn 1;\n\t\t\t\tcase 'after':\n\t\t\t\t\treturn -1;\n\t\t\t\tdefault:\n\t\t\t\t\tswitch ( r1.end.compareWith( r2.end ) ) {\n\t\t\t\t\t\tcase 'before':\n\t\t\t\t\t\t\treturn 1;\n\t\t\t\t\t\tcase 'after':\n\t\t\t\t\t\t\treturn -1;\n\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\treturn n2.localeCompare( n1 );\n\t\t\t\t\t}\n\t\t\t}\n\t\t}\n\t} );\n\n\treturn new Map( result );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/conversion/conversion\n */\n\nimport {\n\tCKEditorError,\n\ttoArray,\n\ttype ArrayOrItem,\n\ttype PriorityString\n} from '@ckeditor/ckeditor5-utils';\n\nimport UpcastHelpers from './upcasthelpers';\nimport DowncastHelpers, {\n\ttype AttributeCreatorFunction,\n\ttype AttributeDescriptor\n} from './downcasthelpers';\n\nimport type DowncastDispatcher from './downcastdispatcher';\nimport type UpcastDispatcher from './upcastdispatcher';\nimport type ElementDefinition from '../view/elementdefinition';\nimport type { MatcherPattern } from '../view/matcher';\n\n/**\n * A utility class that helps add converters to upcast and downcast dispatchers.\n *\n * We recommend reading the {@glink framework/deep-dive/conversion/intro editor conversion} guide first to\n * understand the core concepts of the conversion mechanisms.\n *\n * An instance of the conversion manager is available in the\n * {@link module:core/editor/editor~Editor#conversion `editor.conversion`} property\n * and by default has the following groups of dispatchers (i.e. directions of conversion):\n *\n * * `downcast` (editing and data downcasts)\n * * `editingDowncast`\n * * `dataDowncast`\n * * `upcast`\n *\n * # One-way converters\n *\n * To add a converter to a specific group, use the {@link module:engine/conversion/conversion~Conversion#for `for()`}\n * method:\n *\n * ```ts\n * // Add a converter to editing downcast and data downcast.\n * editor.conversion.for( 'downcast' ).elementToElement( config ) );\n *\n * // Add a converter to the data pipepline only:\n * editor.conversion.for( 'dataDowncast' ).elementToElement( dataConversionConfig ) );\n *\n * // And a slightly different one for the editing pipeline:\n * editor.conversion.for( 'editingDowncast' ).elementToElement( editingConversionConfig ) );\n * ```\n *\n * See {@link module:engine/conversion/conversion~Conversion#for `for()`} method documentation to learn more about\n * available conversion helpers and how to use your custom ones.\n *\n * # Two-way converters\n *\n * Besides using one-way converters via the `for()` method, you can also use other methods available in this\n * class to add two-way converters (upcast and downcast):\n *\n * * {@link module:engine/conversion/conversion~Conversion#elementToElement `elementToElement()`} &ndash;\n * Model element to view element and vice versa.\n * * {@link module:engine/conversion/conversion~Conversion#attributeToElement `attributeToElement()`} &ndash;\n * Model attribute to view element and vice versa.\n * * {@link module:engine/conversion/conversion~Conversion#attributeToAttribute `attributeToAttribute()`} &ndash;\n * Model attribute to view attribute and vice versa.\n */\nexport default class Conversion {\n\t/**\n\t * Maps dispatchers group name to ConversionHelpers instances.\n\t */\n\tprivate readonly _helpers = new Map<string, DowncastHelpers | UpcastHelpers>();\n\n\tprivate readonly _downcast: Array<DowncastDispatcher>;\n\tprivate readonly _upcast: Array<UpcastDispatcher>;\n\n\t/**\n\t * Creates a new conversion instance.\n\t */\n\tconstructor(\n\t\tdowncastDispatchers: ArrayOrItem<DowncastDispatcher>,\n\t\tupcastDispatchers: ArrayOrItem<UpcastDispatcher>\n\t) {\n\t\t// Define default 'downcast' & 'upcast' dispatchers groups. Those groups are always available as two-way converters needs them.\n\t\tthis._downcast = toArray( downcastDispatchers );\n\t\tthis._createConversionHelpers( { name: 'downcast', dispatchers: this._downcast, isDowncast: true } );\n\n\t\tthis._upcast = toArray( upcastDispatchers );\n\t\tthis._createConversionHelpers( { name: 'upcast', dispatchers: this._upcast, isDowncast: false } );\n\t}\n\n\tpublic addAlias(\n\t\talias: `${ string }Downcast`,\n\t\tdispatcher: DowncastDispatcher\n\t): void;\n\tpublic addAlias(\n\t\talias: `${ string }Upcast`,\n\t\tdispatcher: UpcastDispatcher\n\t): void;\n\tpublic addAlias(\n\t\talias: string,\n\t\tdispatcher: DowncastDispatcher | UpcastDispatcher\n\t): void;\n\n\t/**\n\t * Define an alias for registered dispatcher.\n\t *\n\t * ```ts\n\t * const conversion = new Conversion(\n\t * \t[ dataDowncastDispatcher, editingDowncastDispatcher ],\n\t * \tupcastDispatcher\n\t * );\n\t *\n\t * conversion.addAlias( 'dataDowncast', dataDowncastDispatcher );\n\t * ```\n\t *\n\t * @param alias An alias of a dispatcher.\n\t * @param dispatcher Dispatcher which should have an alias.\n\t */\n\tpublic addAlias(\n\t\talias: string,\n\t\tdispatcher: DowncastDispatcher | UpcastDispatcher\n\t): void {\n\t\tconst isDowncast = this._downcast.includes( dispatcher as any );\n\t\tconst isUpcast = this._upcast.includes( dispatcher as any );\n\n\t\tif ( !isUpcast && !isDowncast ) {\n\t\t\t/**\n\t\t\t * Trying to register an alias for a dispatcher that nas not been registered.\n\t\t\t *\n\t\t\t * @error conversion-add-alias-dispatcher-not-registered\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'conversion-add-alias-dispatcher-not-registered',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tthis._createConversionHelpers( { name: alias, dispatchers: [ dispatcher ], isDowncast } );\n\t}\n\n\tpublic for( groupName: 'downcast' | `${ string }Downcast` ): DowncastHelpers;\n\tpublic for( groupName: 'upcast' | `${ string }Upcast` ): UpcastHelpers;\n\tpublic for( groupName: string ): DowncastHelpers | UpcastHelpers;\n\n\t/**\n\t * Provides a chainable API to assign converters to a conversion dispatchers group.\n\t *\n\t * If the given group name has not been registered, the\n\t * {@link module:utils/ckeditorerror~CKEditorError `conversion-for-unknown-group` error} is thrown.\n\t *\n\t * You can use conversion helpers available directly in the `for()` chain or your custom ones via\n\t * the {@link module:engine/conversion/conversionhelpers~ConversionHelpers#add `add()`} method.\n\t *\n\t * # Using built-in conversion helpers\n\t *\n\t * The `for()` chain comes with a set of conversion helpers which you can use like this:\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'downcast' )\n\t * \t.elementToElement( config1 )        // Adds an element-to-element downcast converter.\n\t * \t.attributeToElement( config2 );     // Adds an attribute-to-element downcast converter.\n\t *\n\t * editor.conversion.for( 'upcast' )\n\t * \t.elementToAttribute( config3 );     // Adds an element-to-attribute upcast converter.\n\t * ```\n\t *\n\t * Refer to the documentation of built-in conversion helpers to learn about their configuration options.\n\t *\n\t * * downcast (model-to-view) conversion helpers:\n\t *\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`},\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement `attributeToElement()`},\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToAttribute `attributeToAttribute()`}.\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToElement `markerToElement()`}.\n\t *\t* {@link module:engine/conversion/downcasthelpers~DowncastHelpers#markerToHighlight `markerToHighlight()`}.\n\t *\n\t * * upcast (view-to-model) conversion helpers:\n\t *\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToElement `elementToElement()`},\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToAttribute `elementToAttribute()`},\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#attributeToAttribute `attributeToAttribute()`}.\n\t *\t* {@link module:engine/conversion/upcasthelpers~UpcastHelpers#elementToMarker `elementToMarker()`}.\n\t *\n\t * # Using custom conversion helpers\n\t *\n\t * If you need to implement an atypical converter, you can do so by calling:\n\t *\n\t * ```ts\n\t * editor.conversion.for( direction ).add( customHelper );\n\t * ```\n\t *\n\t * The `.add()` method takes exactly one parameter, which is a function. This function should accept one parameter that\n\t * is a dispatcher instance. The function should add an actual converter to the passed dispatcher instance.\n\t *\n\t * Example:\n\t *\n\t * ```ts\n\t * editor.conversion.for( 'upcast' ).add( dispatcher => {\n\t * \tdispatcher.on( 'element:a',  ( evt, data, conversionApi ) => {\n\t * \t\t// Do something with a view <a> element.\n\t * \t} );\n\t * } );\n\t * ```\n\t *\n\t * Refer to the documentation of {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher}\n\t * and {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} to learn how to write\n\t * custom converters.\n\t *\n\t * @param groupName The name of dispatchers group to add the converters to.\n\t */\n\tpublic for( groupName: string ): DowncastHelpers | UpcastHelpers {\n\t\tif ( !this._helpers.has( groupName ) ) {\n\t\t\t/**\n\t\t\t * Trying to add a converter to an unknown dispatchers group.\n\t\t\t *\n\t\t\t * @error conversion-for-unknown-group\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-for-unknown-group', this );\n\t\t}\n\n\t\treturn this._helpers.get( groupName )!;\n\t}\n\n\t/**\n\t * Sets up converters between the model and the view that convert a model element to a view element (and vice versa).\n\t * For example, the model `<paragraph>Foo</paragraph>` is turned into `<p>Foo</p>` in the view.\n\t *\n\t * ```ts\n\t * // A simple conversion from the `paragraph` model element to the `<p>` view element (and vice versa).\n\t * editor.conversion.elementToElement( { model: 'paragraph', view: 'p' } );\n\t *\n\t * // Override other converters by specifying a converter definition with a higher priority.\n\t * editor.conversion.elementToElement( { model: 'paragraph', view: 'div', converterPriority: 'high' } );\n\t *\n\t * // View specified as an object instead of a string.\n\t * editor.conversion.elementToElement( {\n\t * \tmodel: 'fancyParagraph',\n\t * \tview: {\n\t * \t\tname: 'p',\n\t * \t\tclasses: 'fancy'\n\t * \t}\n\t * } );\n\t *\n\t * // Use `upcastAlso` to define other view elements that should also be converted to a `paragraph` element.\n\t * editor.conversion.elementToElement( {\n\t * \tmodel: 'paragraph',\n\t * \tview: 'p',\n\t * \tupcastAlso: [\n\t * \t\t'div',\n\t * \t\t{\n\t * \t\t\t// Any element with the `display: block` style.\n\t * \t\t\tstyles: {\n\t * \t\t\t\tdisplay: 'block'\n\t * \t\t\t}\n\t * \t\t}\n\t * \t]\n\t * } );\n\t *\n\t * // `upcastAlso` set as callback enables a conversion of a wide range of different view elements.\n\t * editor.conversion.elementToElement( {\n\t * \tmodel: 'heading',\n\t * \tview: 'h2',\n\t * \t// Convert \"heading-like\" paragraphs to headings.\n\t * \tupcastAlso: viewElement => {\n\t * \t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t *\n\t * \t\tif ( !fontSize ) {\n\t * \t\t\treturn null;\n\t * \t\t}\n\t *\n\t * \t\tconst match = fontSize.match( /(\\d+)\\s*px/ );\n\t *\n\t * \t\tif ( !match ) {\n\t * \t\t\treturn null;\n\t * \t\t}\n\t *\n\t * \t\tconst size = Number( match[ 1 ] );\n\t *\n\t * \t\tif ( size > 26 ) {\n\t * \t\t\t// Returned value can be an object with the matched properties.\n\t * \t\t\t// These properties will be \"consumed\" during the conversion.\n\t * \t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t * \t\t\treturn { name: true, styles: [ 'font-size' ] };\n\t * \t\t}\n\t *\n\t * \t\treturn null;\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * `definition.model` is a `String` with a model element name to convert from or to.\n\t *\n\t * @param definition The converter definition.\n\t */\n\tpublic elementToElement( definition: {\n\t\tmodel: string;\n\t\tview: ElementDefinition;\n\t\tupcastAlso?: ArrayOrItem<ElementDefinition | MatcherPattern>;\n\t\tconverterPriority?: PriorityString;\n\t} ): void {\n\t\t// Set up downcast converter.\n\t\tthis.for( 'downcast' ).elementToElement( definition );\n\n\t\t// Set up upcast converter.\n\t\tfor ( const { model, view } of _getAllUpcastDefinitions( definition ) ) {\n\t\t\tthis.for( 'upcast' )\n\t\t\t\t.elementToElement( {\n\t\t\t\t\tmodel,\n\t\t\t\t\tview,\n\t\t\t\t\tconverterPriority: definition.converterPriority\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Sets up converters between the model and the view that convert a model attribute to a view element (and vice versa).\n\t * For example, a model text node with `\"Foo\"` as data and the `bold` attribute will be turned to `<strong>Foo</strong>` in the view.\n\t *\n\t * ```ts\n\t * // A simple conversion from the `bold=true` attribute to the `<strong>` view element (and vice versa).\n\t * editor.conversion.attributeToElement( { model: 'bold', view: 'strong' } );\n\t *\n\t * // Override other converters by specifying a converter definition with a higher priority.\n\t * editor.conversion.attributeToElement( { model: 'bold', view: 'b', converterPriority: 'high' } );\n\t *\n\t * // View specified as an object instead of a string.\n\t * editor.conversion.attributeToElement( {\n\t * \tmodel: 'bold',\n\t * \tview: {\n\t * \t\tname: 'span',\n\t * \t\tclasses: 'bold'\n\t * \t}\n\t * } );\n\t *\n\t * // Use `config.model.name` to define the conversion only from a given node type, `$text` in this case.\n\t * // The same attribute on different elements may then be handled by a different converter.\n\t * editor.conversion.attributeToElement( {\n\t * \tmodel: {\n\t * \t\tkey: 'textDecoration',\n\t * \t\tvalues: [ 'underline', 'lineThrough' ],\n\t * \t\tname: '$text'\n\t * \t},\n\t * \tview: {\n\t * \t\tunderline: {\n\t * \t\t\tname: 'span',\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'text-decoration': 'underline'\n\t * \t\t\t}\n\t * \t\t},\n\t * \t\tlineThrough: {\n\t * \t\t\tname: 'span',\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'text-decoration': 'line-through'\n\t * \t\t\t}\n\t * \t\t}\n\t * \t}\n\t * } );\n\t *\n\t * // Use `upcastAlso` to define other view elements that should also be converted to the `bold` attribute.\n\t * editor.conversion.attributeToElement( {\n\t * \tmodel: 'bold',\n\t * \tview: 'strong',\n\t * \tupcastAlso: [\n\t * \t\t'b',\n\t * \t\t{\n\t * \t\t\tname: 'span',\n\t * \t\t\tclasses: 'bold'\n\t * \t\t},\n\t * \t\t{\n\t * \t\t\tname: 'span',\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'font-weight': 'bold'\n\t * \t\t\t}\n\t * \t\t},\n\t * \t\tviewElement => {\n\t * \t\t\tconst fontWeight = viewElement.getStyle( 'font-weight' );\n\t *\n\t * \t\t\tif ( viewElement.is( 'element', 'span' ) && fontWeight && /\\d+/.test() && Number( fontWeight ) > 500 ) {\n\t * \t\t\t\t// Returned value can be an object with the matched properties.\n\t * \t\t\t\t// These properties will be \"consumed\" during the conversion.\n\t * \t\t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t * \t\t\t\treturn {\n\t * \t\t\t\t\tname: true,\n\t * \t\t\t\t\tstyles: [ 'font-weight' ]\n\t * \t\t\t\t};\n\t * \t\t\t}\n\t * \t\t}\n\t * \t]\n\t * } );\n\t *\n\t * // Conversion from and to a model attribute key whose value is an enum (`fontSize=big|small`).\n\t * // `upcastAlso` set as callback enables a conversion of a wide range of different view elements.\n\t * editor.conversion.attributeToElement( {\n\t * \tmodel: {\n\t * \t\tkey: 'fontSize',\n\t * \t\tvalues: [ 'big', 'small' ]\n\t * \t},\n\t * \tview: {\n\t * \t\tbig: {\n\t * \t\t\tname: 'span',\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'font-size': '1.2em'\n\t * \t\t\t}\n\t * \t\t},\n\t * \t\tsmall: {\n\t * \t\t\tname: 'span',\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'font-size': '0.8em'\n\t * \t\t\t}\n\t * \t\t}\n\t * \t},\n\t * \tupcastAlso: {\n\t * \t\tbig: viewElement => {\n\t * \t\t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t *\n\t * \t\t\tif ( !fontSize ) {\n\t * \t\t\t\treturn null;\n\t * \t\t\t}\n\t *\n\t * \t\t\tconst match = fontSize.match( /(\\d+)\\s*px/ );\n\t *\n\t * \t\t\tif ( !match ) {\n\t * \t\t\t\treturn null;\n\t * \t\t\t}\n\t *\n\t * \t\t\tconst size = Number( match[ 1 ] );\n\t *\n\t * \t\t\tif ( viewElement.is( 'element', 'span' ) && size > 10 ) {\n\t * \t\t\t\t// Returned value can be an object with the matched properties.\n\t * \t\t\t\t// These properties will be \"consumed\" during the conversion.\n\t * \t\t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t * \t\t\t\treturn { name: true, styles: [ 'font-size' ] };\n\t * \t\t\t}\n\t *\n\t * \t\t\treturn null;\n\t * \t\t},\n\t * \t\tsmall: viewElement => {\n\t * \t\t\tconst fontSize = viewElement.getStyle( 'font-size' );\n\t *\n\t * \t\t\tif ( !fontSize ) {\n\t * \t\t\t\treturn null;\n\t * \t\t\t}\n\t *\n\t * \t\t\tconst match = fontSize.match( /(\\d+)\\s*px/ );\n\t *\n\t * \t\t\tif ( !match ) {\n\t * \t\t\t\treturn null;\n\t * \t\t\t}\n\t *\n\t * \t\t\tconst size = Number( match[ 1 ] );\n\t *\n\t * \t\t\tif ( viewElement.is( 'element', 'span' ) && size < 10 ) {\n\t * \t\t\t\t// Returned value can be an object with the matched properties.\n\t * \t\t\t\t// These properties will be \"consumed\" during the conversion.\n\t * \t\t\t\t// See `engine.view.Matcher~MatcherPattern` and `engine.view.Matcher#match` for more details.\n\t *\n\t * \t\t\t\treturn { name: true, styles: [ 'font-size' ] };\n\t * \t\t\t}\n\t *\n\t * \t\t\treturn null;\n\t * \t\t}\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * The `definition.model` parameter specifies which model attribute should be converted from or to. It can be a `{ key, value }` object\n\t * describing the attribute key and value to convert or a `String` specifying just the attribute key (in such a case\n\t * `value` is set to `true`).\n\t *\n\t * @param definition The converter definition.\n\t */\n\tpublic attributeToElement<TValues extends string>(\n\t\tdefinition: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: ElementDefinition;\n\t\t\tupcastAlso?: ArrayOrItem<MatcherPattern>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, ElementDefinition>;\n\t\t\tupcastAlso?: Record<TValues, ArrayOrItem<MatcherPattern>>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t}\n\t): void {\n\t\t// Set up downcast converter.\n\t\tthis.for( 'downcast' ).attributeToElement( definition );\n\n\t\t// Set up upcast converter.\n\t\tfor ( const { model, view } of _getAllUpcastDefinitions( definition ) ) {\n\t\t\tthis.for( 'upcast' )\n\t\t\t\t.elementToAttribute( {\n\t\t\t\t\tview,\n\t\t\t\t\tmodel,\n\t\t\t\t\tconverterPriority: definition.converterPriority\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Sets up converters between the model and the view that convert a model attribute to a view attribute (and vice versa). For example,\n\t * `<imageBlock src='foo.jpg'></imageBlock>` is converted to `<img src='foo.jpg'></img>` (the same attribute key and value).\n\t * This type of converters is intended to be used with {@link module:engine/model/element~Element model element} nodes.\n\t * To convert the text attributes,\n\t * the {@link module:engine/conversion/conversion~Conversion#attributeToElement `attributeToElement converter`}should be set up.\n\t *\n\t * ```ts\n\t * // A simple conversion from the `source` model attribute to the `src` view attribute (and vice versa).\n\t * editor.conversion.attributeToAttribute( { model: 'source', view: 'src' } );\n\t *\n\t * // Attribute values are strictly specified.\n\t * editor.conversion.attributeToAttribute( {\n\t * \tmodel: {\n\t * \t\tname: 'imageInline',\n\t * \t\tkey: 'aside',\n\t * \t\tvalues: [ 'aside' ]\n\t * \t},\n\t * \tview: {\n\t * \t\taside: {\n\t * \t\t\tname: 'img',\n\t * \t\t\tkey: 'class',\n\t * \t\t\tvalue: [ 'aside', 'half-size' ]\n\t * \t\t}\n\t * \t}\n\t * } );\n\t *\n\t * // Set the style attribute.\n\t * editor.conversion.attributeToAttribute( {\n\t * \tmodel: {\n\t * \t\tname: 'imageInline',\n\t * \t\tkey: 'aside',\n\t * \t\tvalues: [ 'aside' ]\n\t * \t},\n\t * \tview: {\n\t * \t\taside: {\n\t * \t\t\tname: 'img',\n\t * \t\t\tkey: 'style',\n\t * \t\t\tvalue: {\n\t * \t\t\t\tfloat: 'right',\n\t * \t\t\t\twidth: '50%',\n\t * \t\t\t\tmargin: '5px'\n\t * \t\t\t}\n\t * \t\t}\n\t * \t}\n\t * } );\n\t *\n\t * // Conversion from and to a model attribute key whose value is an enum (`align=right|center`).\n\t * // Use `upcastAlso` to define other view elements that should also be converted to the `align=right` attribute.\n\t * editor.conversion.attributeToAttribute( {\n\t * \tmodel: {\n\t * \t\tkey: 'align',\n\t * \t\tvalues: [ 'right', 'center' ]\n\t * \t},\n\t * \tview: {\n\t * \t\tright: {\n\t * \t\t\tkey: 'class',\n\t * \t\t\tvalue: 'align-right'\n\t * \t\t},\n\t * \t\tcenter: {\n\t * \t\t\tkey: 'class',\n\t * \t\t\tvalue: 'align-center'\n\t * \t\t}\n\t * \t},\n\t * \tupcastAlso: {\n\t * \t\tright: {\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'text-align': 'right'\n\t * \t\t\t}\n\t * \t\t},\n\t * \t\tcenter: {\n\t * \t\t\tstyles: {\n\t * \t\t\t\t'text-align': 'center'\n\t * \t\t\t}\n\t * \t\t}\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * The `definition.model` parameter specifies which model attribute should be converted from and to.\n\t * It can be a `{ key, [ values ], [ name ] }` object or a `String`, which will be treated like `{ key: definition.model }`.\n\t * The `key` property is the model attribute key to convert from and to.\n\t * The `values` are the possible model attribute values. If the `values` parameter is not set, the model attribute value\n\t * will be the same as the view attribute value.\n\t * If `name` is set, the conversion will be set up only for model elements with the given name.\n\t *\n\t * The `definition.view` parameter specifies which view attribute should be converted from and to.\n\t * It can be a `{ key, value, [ name ] }` object or a `String`, which will be treated like `{ key: definition.view }`.\n\t * The `key` property is the view attribute key to convert from and to.\n\t * The `value` is the view attribute value to convert from and to. If `definition.value` is not set, the view attribute value will be\n\t * the same as the model attribute value.\n\t * If `key` is `'class'`, `value` can be a `String` or an array of `String`s.\n\t * If `key` is `'style'`, `value` is an object with key-value pairs.\n\t * In other cases, `value` is a `String`.\n\t * If `name` is set, the conversion will be set up only for model elements with the given name.\n\t * If `definition.model.values` is set, `definition.view` is an object that assigns values from `definition.model.values`\n\t * to `{ key, value, [ name ] }` objects.\n\t *\n\t * `definition.upcastAlso` specifies which other matching view elements should also be upcast to the given model configuration.\n\t * If `definition.model.values` is set, `definition.upcastAlso` should be an object assigning values from `definition.model.values`\n\t * to {@link module:engine/view/matcher~MatcherPattern}s or arrays of {@link module:engine/view/matcher~MatcherPattern}s.\n\t *\n\t * **Note:** `definition.model` and `definition.view` form should be mirrored, so the same types of parameters should\n\t * be given in both parameters.\n\t *\n\t * @param definition The converter definition.\n\t * @param definition.model The model attribute to convert from and to.\n\t * @param definition.view The view attribute to convert from and to.\n\t * @param definition.upcastAlso Any view element matching `definition.upcastAlso` will also be converted to the given model attribute.\n\t * `definition.upcastAlso` is used only if `config.model.values` is specified.\n\t */\n\tpublic attributeToAttribute<TValues extends string>(\n\t\tdefinition: {\n\t\t\tmodel: string | {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t};\n\t\t\tview: string | ( AttributeDescriptor & { name?: string } );\n\t\t\tupcastAlso?: ArrayOrItem<string | ( AttributeDescriptor & { name?: string } ) | AttributeCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} | {\n\t\t\tmodel: {\n\t\t\t\tkey: string;\n\t\t\t\tname?: string;\n\t\t\t\tvalues: Array<TValues>;\n\t\t\t};\n\t\t\tview: Record<TValues, ( AttributeDescriptor & { name?: string } )>;\n\t\t\tupcastAlso?: Record<TValues, ( AttributeDescriptor & { name?: string } ) | AttributeCreatorFunction>;\n\t\t\tconverterPriority?: PriorityString;\n\t\t} ): void {\n\t\t// Set up downcast converter.\n\t\tthis.for( 'downcast' ).attributeToAttribute( definition );\n\n\t\t// Set up upcast converter.\n\t\tfor ( const { model, view } of _getAllUpcastDefinitions( definition ) ) {\n\t\t\tthis.for( 'upcast' )\n\t\t\t\t.attributeToAttribute( {\n\t\t\t\t\tview,\n\t\t\t\t\tmodel\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Creates and caches conversion helpers for given dispatchers group.\n\t *\n\t * @param options.name Group name.\n\t */\n\tprivate _createConversionHelpers(\n\t\t{ name, dispatchers, isDowncast }: {\n\t\t\tname: string;\n\t\t\tdispatchers: Array<DowncastDispatcher | UpcastDispatcher>;\n\t\t\tisDowncast: boolean;\n\t\t}\n\t): void {\n\t\tif ( this._helpers.has( name ) ) {\n\t\t\t/**\n\t\t\t * Trying to register a group name that has already been registered.\n\t\t\t *\n\t\t\t * @error conversion-group-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'conversion-group-exists', this );\n\t\t}\n\n\t\tconst helpers = isDowncast ?\n\t\t\tnew DowncastHelpers( dispatchers as Array<DowncastDispatcher> ) :\n\t\t\tnew UpcastHelpers( dispatchers as Array<UpcastDispatcher> );\n\n\t\tthis._helpers.set( name, helpers );\n\t}\n}\n\n/**\n * Helper function that creates a joint array out of an item passed in `definition.view` and items passed in\n * `definition.upcastAlso`.\n */\nfunction* _getAllUpcastDefinitions( definition: any ): IterableIterator<{ model: any; view: any }> {\n\tif ( definition.model.values ) {\n\t\tfor ( const value of definition.model.values ) {\n\t\t\tconst model = { key: definition.model.key, value };\n\t\t\tconst view = definition.view[ value ];\n\t\t\tconst upcastAlso = definition.upcastAlso ? definition.upcastAlso[ value ] : undefined;\n\n\t\t\tyield* _getUpcastDefinition( model, view, upcastAlso );\n\t\t}\n\t} else {\n\t\tyield* _getUpcastDefinition( definition.model, definition.view, definition.upcastAlso );\n\t}\n}\n\nfunction* _getUpcastDefinition( model: unknown, view: unknown, upcastAlso?: unknown ): any {\n\tyield { model, view };\n\n\tif ( upcastAlso ) {\n\t\tfor ( const upcastAlsoItem of toArray( upcastAlso ) ) {\n\t\t\tyield { model, view: upcastAlsoItem };\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-unused-vars */\n\nimport type Batch from '../batch';\nimport type Document from '../document';\n\n/**\n * @module engine/model/operation/operation\n */\n\n/**\n * Abstract base operation class.\n */\nexport default abstract class Operation {\n\t/**\n\t * {@link module:engine/model/document~Document#version} on which operation can be applied. If you try to\n\t * {@link module:engine/model/model~Model#applyOperation apply} operation with different base version than the\n\t * {@link module:engine/model/document~Document#version document version} the\n\t * {@link module:utils/ckeditorerror~CKEditorError model-document-applyOperation-wrong-version} error is thrown.\n\t */\n\tpublic baseVersion: number | null;\n\n\t/**\n\t * Defines whether operation is executed on attached or detached {@link module:engine/model/item~Item items}.\n\t */\n\tpublic readonly isDocumentOperation: boolean;\n\n\t/**\n\t * {@link module:engine/model/batch~Batch Batch} to which the operation is added or `null` if the operation is not\n\t * added to any batch yet.\n\t */\n\tpublic batch: Batch | null;\n\n\t/**\n\t * Operation type.\n\t */\n\tpublic readonly abstract type: string;\n\n\t/**\n\t * Base operation constructor.\n\t *\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( baseVersion: number | null ) {\n\t\tthis.baseVersion = baseVersion;\n\t\tthis.isDocumentOperation = this.baseVersion !== null;\n\t\tthis.batch = null;\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns Clone of this operation.\n\t */\n\tpublic abstract clone(): Operation;\n\n\t/**\n\t * Creates and returns a reverse operation. Reverse operation when executed right after\n\t * the original operation will bring back tree model state to the point before the original\n\t * operation execution. In other words, it reverses changes done by the original operation.\n\t *\n\t * Keep in mind that tree model state may change since executing the original operation,\n\t * so reverse operation will be \"outdated\". In that case you will need to transform it by\n\t * all operations that were executed after the original operation.\n\t *\n\t * @returns Reversed operation.\n\t */\n\tpublic abstract getReversed(): Operation;\n\n\t/**\n\t * Executes the operation - modifications described by the operation properties will be applied to the model tree.\n\t *\n\t * @internal\n\t */\n\tpublic abstract _execute(): void;\n\n\t/**\n\t * Checks whether the operation's parameters are correct and the operation can be correctly executed. Throws\n\t * an error if operation is not valid.\n\t *\n\t * @internal\n\t */\n\tpublic _validate(): void {\n\t}\n\n\t/**\n\t * Custom toJSON method to solve child-parent circular dependencies.\n\t *\n\t * @returns Clone of this object with the operation property replaced with string.\n\t */\n\tpublic toJSON(): unknown {\n\t\t// This method creates only a shallow copy, all nested objects should be defined separately.\n\t\t// See https://github.com/ckeditor/ckeditor5-engine/issues/1477.\n\t\tconst json: any = Object.assign( {}, this );\n\n\t\tjson.__className = ( this.constructor as any ).className;\n\n\t\t// Remove reference to the parent `Batch` to avoid circular dependencies.\n\t\tdelete json.batch;\n\n\t\t// Only document operations are shared with other clients so it is not necessary to keep this information.\n\t\tdelete json.isDocumentOperation;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Name of the operation class used for serialization.\n\t */\n\tpublic static get className(): string {\n\t\treturn 'Operation';\n\t}\n\n\t/**\n\t * Creates `Operation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param doc Document on which this operation will be applied.\n\t */\n\tpublic static fromJSON( json: any, document: Document ): Operation {\n\t\treturn new ( this as any )( json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // log() {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.toString() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/utils\n */\n\nimport Node from '../node';\nimport Range from '../range';\nimport Text from '../text';\nimport TextProxy from '../textproxy';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Element from '../element';\nimport type Item from '../item';\nimport type NodeList from '../nodelist';\nimport type Position from '../position';\n\nimport { CKEditorError, isIterable } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Inserts given nodes at given position.\n *\n * @internal\n * @param position Position at which nodes should be inserted.\n * @param normalizedNodes Nodes to insert.\n * @returns Range spanning over inserted elements.\n */\nexport function _insert( position: Position, nodes: NodeSet ): Range {\n\tconst normalizedNodes = _normalizeNodes( nodes );\n\n\t// We have to count offset before inserting nodes because they can get merged and we would get wrong offsets.\n\tconst offset = normalizedNodes.reduce( ( sum, node ) => sum + node.offsetSize, 0 );\n\tconst parent = position.parent;\n\n\t// Insertion might be in a text node, we should split it if that's the case.\n\t_splitNodeAtPosition( position );\n\tconst index = position.index;\n\n\t// Insert nodes at given index. After splitting we have a proper index and insertion is between nodes,\n\t// using basic `Element` API.\n\tparent._insertChild( index, normalizedNodes );\n\n\t// Merge text nodes, if possible. Merging is needed only at points where inserted nodes \"touch\" \"old\" nodes.\n\t_mergeNodesAtIndex( parent, index + normalizedNodes.length );\n\t_mergeNodesAtIndex( parent, index );\n\n\treturn new Range( position, position.getShiftedBy( offset ) );\n}\n\n/**\n * Removed nodes in given range. Only {@link module:engine/model/range~Range#isFlat flat} ranges are accepted.\n *\n * @internal\n * @param range Range containing nodes to remove.\n */\nexport function _remove( this: any, range: Range ): Array<Node> {\n\tif ( !range.isFlat ) {\n\t\t/**\n\t\t * Trying to remove a range which starts and ends in different element.\n\t\t *\n\t\t * @error operation-utils-remove-range-not-flat\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'operation-utils-remove-range-not-flat',\n\t\t\tthis\n\t\t);\n\t}\n\n\tconst parent = range.start.parent;\n\n\t// Range may be inside text nodes, we have to split them if that's the case.\n\t_splitNodeAtPosition( range.start );\n\t_splitNodeAtPosition( range.end );\n\n\t// Remove the text nodes using basic `Element` API.\n\tconst removed = parent._removeChildren( range.start.index, range.end.index - range.start.index );\n\n\t// Merge text nodes, if possible. After some nodes were removed, node before and after removed range will be\n\t// touching at the position equal to the removed range beginning. We check merging possibility there.\n\t_mergeNodesAtIndex( parent, range.start.index );\n\n\treturn removed;\n}\n\n/**\n * Moves nodes in given range to given target position. Only {@link module:engine/model/range~Range#isFlat flat} ranges are accepted.\n *\n * @internal\n * @param sourceRange Range containing nodes to move.\n * @param targetPosition Position to which nodes should be moved.\n * @returns Range containing moved nodes.\n */\nexport function _move( this: any, sourceRange: Range, targetPosition: Position ): Range {\n\tif ( !sourceRange.isFlat ) {\n\t\t/**\n\t\t * Trying to move a range which starts and ends in different element.\n\t\t *\n\t\t * @error operation-utils-move-range-not-flat\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'operation-utils-move-range-not-flat',\n\t\t\tthis\n\t\t);\n\t}\n\n\tconst nodes = _remove( sourceRange );\n\n\t// We have to fix `targetPosition` because model changed after nodes from `sourceRange` got removed and\n\t// that change might have an impact on `targetPosition`.\n\ttargetPosition = targetPosition._getTransformedByDeletion( sourceRange.start, sourceRange.end.offset - sourceRange.start.offset )!;\n\n\treturn _insert( targetPosition, nodes );\n}\n\n/**\n * Sets given attribute on nodes in given range. The attributes are only set on top-level nodes of the range, not on its children.\n *\n * @internal\n * @param range Range containing nodes that should have the attribute set. Must be a flat range.\n * @param key Key of attribute to set.\n * @param value Attribute value.\n */\nexport function _setAttribute( range: Range, key: string, value: unknown ): void {\n\t// Range might start or end in text nodes, so we have to split them.\n\t_splitNodeAtPosition( range.start );\n\t_splitNodeAtPosition( range.end );\n\n\t// Iterate over all items in the range.\n\tfor ( const item of range.getItems( { shallow: true } ) ) {\n\t\t// Iterator will return `TextProxy` instances but we know that those text proxies will\n\t\t// always represent full text nodes (this is guaranteed thanks to splitting we did before).\n\t\t// So, we can operate on those text proxies' text nodes.\n\t\tconst node = item.is( '$textProxy' ) ? item.textNode : item;\n\n\t\tif ( value !== null ) {\n\t\t\tnode._setAttribute( key, value );\n\t\t} else {\n\t\t\tnode._removeAttribute( key );\n\t\t}\n\n\t\t// After attributes changing it may happen that some text nodes can be merged. Try to merge with previous node.\n\t\t_mergeNodesAtIndex( node.parent!, node.index! );\n\t}\n\n\t// Try to merge last changed node with it's previous sibling (not covered by the loop above).\n\t_mergeNodesAtIndex( range.end.parent, range.end.index );\n}\n\n/**\n * Normalizes given object or an array of objects to an array of {@link module:engine/model/node~Node nodes}. See\n * {@link ~NodeSet NodeSet} for details on how normalization is performed.\n *\n * @internal\n * @param nodes Objects to normalize.\n * @returns Normalized nodes.\n */\nexport function _normalizeNodes( nodes: NodeSet ): Array<Node> {\n\tconst normalized: Array<Node> = [];\n\n\tfunction convert( nodes: NodeSet ) {\n\t\tif ( typeof nodes == 'string' ) {\n\t\t\tnormalized.push( new Text( nodes ) );\n\t\t} else if ( nodes instanceof TextProxy ) {\n\t\t\tnormalized.push( new Text( nodes.data, nodes.getAttributes() ) );\n\t\t} else if ( nodes instanceof Node ) {\n\t\t\tnormalized.push( nodes );\n\t\t} else if ( isIterable( nodes ) ) {\n\t\t\tfor ( const node of nodes ) {\n\t\t\t\tconvert( node );\n\t\t\t}\n\t\t}\n\t\t// Skip unrecognized type.\n\t}\n\n\tconvert( nodes );\n\n\t// Merge text nodes.\n\tfor ( let i = 1; i < normalized.length; i++ ) {\n\t\tconst node = normalized[ i ];\n\t\tconst prev = normalized[ i - 1 ];\n\n\t\tif ( node instanceof Text && prev instanceof Text && _haveSameAttributes( node, prev ) ) {\n\t\t\t// Doing this instead changing `prev.data` because `data` is readonly.\n\t\t\tnormalized.splice( i - 1, 2, new Text( prev.data + node.data, prev.getAttributes() ) );\n\t\t\ti--;\n\t\t}\n\t}\n\n\treturn normalized;\n}\n\n/**\n * Checks if nodes before and after given index in given element are {@link module:engine/model/text~Text text nodes} and\n * merges them into one node if they have same attributes.\n *\n * Merging is done by removing two text nodes and inserting a new text node containing data from both merged text nodes.\n *\n * @param element Parent element of nodes to merge.\n * @param index Index between nodes to merge.\n */\nfunction _mergeNodesAtIndex( element: Element | DocumentFragment, index: number ) {\n\tconst nodeBefore = element.getChild( index - 1 );\n\tconst nodeAfter = element.getChild( index );\n\n\t// Check if both of those nodes are text objects with same attributes.\n\tif ( nodeBefore && nodeAfter && nodeBefore.is( '$text' ) && nodeAfter.is( '$text' ) && _haveSameAttributes( nodeBefore, nodeAfter ) ) {\n\t\t// Append text of text node after index to the before one.\n\t\tconst mergedNode = new Text( nodeBefore.data + nodeAfter.data, nodeBefore.getAttributes() );\n\n\t\t// Remove separate text nodes.\n\t\telement._removeChildren( index - 1, 2 );\n\n\t\t// Insert merged text node.\n\t\telement._insertChild( index - 1, mergedNode );\n\t}\n}\n\n/**\n * Checks if given position is in a text node, and if so, splits the text node in two text nodes, each of them\n * containing a part of original text node.\n *\n * @param position Position at which node should be split.\n */\nfunction _splitNodeAtPosition( position: Position ): void {\n\tconst textNode = position.textNode;\n\tconst element = position.parent;\n\n\tif ( textNode ) {\n\t\tconst offsetDiff = position.offset - textNode.startOffset!;\n\t\tconst index = textNode.index!;\n\n\t\telement._removeChildren( index, 1 );\n\n\t\tconst firstPart = new Text( textNode.data.substr( 0, offsetDiff ), textNode.getAttributes() );\n\t\tconst secondPart = new Text( textNode.data.substr( offsetDiff ), textNode.getAttributes() );\n\n\t\telement._insertChild( index, [ firstPart, secondPart ] );\n\t}\n}\n\n/**\n * Checks whether two given nodes have same attributes.\n *\n * @param nodeA Node to check.\n * @param nodeB Node to check.\n * @returns `true` if nodes have same attributes, `false` otherwise.\n */\nfunction _haveSameAttributes( nodeA: Node, nodeB: Node ): boolean | undefined {\n\tconst iteratorA = nodeA.getAttributes();\n\tconst iteratorB = nodeB.getAttributes();\n\n\tfor ( const attr of iteratorA ) {\n\t\tif ( attr[ 1 ] !== nodeB.getAttribute( attr[ 0 ] ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\titeratorB.next();\n\t}\n\n\treturn iteratorB.next().done;\n}\n\n/**\n * Value that can be normalized to an array of {@link module:engine/model/node~Node nodes}.\n *\n * Non-arrays are normalized as follows:\n * * {@link module:engine/model/node~Node Node} is left as is,\n * * {@link module:engine/model/textproxy~TextProxy TextProxy} and `string` are normalized to {@link module:engine/model/text~Text Text},\n * * {@link module:engine/model/nodelist~NodeList NodeList} is normalized to an array containing all nodes that are in that node list,\n * * {@link module:engine/model/documentfragment~DocumentFragment DocumentFragment} is normalized to an array containing all of it's\n * * children.\n *\n * Arrays are processed item by item like non-array values and flattened to one array. Normalization always results in\n * a flat array of {@link module:engine/model/node~Node nodes}. Consecutive text nodes (or items normalized to text nodes) will be\n * merged if they have same attributes.\n */\nexport type NodeSet = Item | string | NodeList | DocumentFragment | Iterable<Item | string | NodeList | DocumentFragment>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/moveoperation\n */\n\nimport Operation from './operation';\nimport Position from '../position';\nimport Range from '../range';\nimport { _move } from './utils';\n\nimport { CKEditorError, compareArrays } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from '../document';\n\n// @if CK_DEBUG_ENGINE // const ModelRange = require( '../range' ).default;\n\n/**\n * Operation to move a range of {@link module:engine/model/item~Item model items}\n * to given {@link module:engine/model/position~Position target position}.\n */\nexport default class MoveOperation extends Operation {\n\t/**\n\t * Position before the first {@link module:engine/model/item~Item model item} to move.\n\t */\n\tpublic sourcePosition: Position;\n\n\t/**\n\t * Offset size of moved range.\n\t */\n\tpublic howMany: number;\n\n\t/**\n\t * Position at which moved nodes will be inserted.\n\t */\n\tpublic targetPosition: Position;\n\n\t/**\n\t * Creates a move operation.\n\t *\n\t * @param sourcePosition Position before the first {@link module:engine/model/item~Item model item} to move.\n\t * @param howMany Offset size of moved range. Moved range will start from `sourcePosition` and end at\n\t * `sourcePosition` with offset shifted by `howMany`.\n\t * @param targetPosition Position at which moved nodes will be inserted.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( sourcePosition: Position, howMany: number, targetPosition: Position, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\tthis.sourcePosition = sourcePosition.clone();\n\t\t// `'toNext'` because `sourcePosition` is a bit like a start of the moved range.\n\t\tthis.sourcePosition.stickiness = 'toNext';\n\n\t\tthis.howMany = howMany;\n\n\t\tthis.targetPosition = targetPosition.clone();\n\t\tthis.targetPosition.stickiness = 'toNone';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'move' | 'remove' | 'reinsert' {\n\t\tif ( this.targetPosition.root.rootName == '$graveyard' ) {\n\t\t\treturn 'remove';\n\t\t} else if ( this.sourcePosition.root.rootName == '$graveyard' ) {\n\t\t\treturn 'reinsert';\n\t\t}\n\n\t\treturn 'move';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t */\n\tpublic clone(): MoveOperation {\n\t\treturn new MoveOperation( this.sourcePosition, this.howMany, this.targetPosition, this.baseVersion );\n\t}\n\n\t/**\n\t * Returns the start position of the moved range after it got moved. This may be different than\n\t * {@link module:engine/model/operation/moveoperation~MoveOperation#targetPosition} in some cases, i.e. when a range is moved\n\t * inside the same parent but {@link module:engine/model/operation/moveoperation~MoveOperation#targetPosition targetPosition}\n\t * is after {@link module:engine/model/operation/moveoperation~MoveOperation#sourcePosition sourcePosition}.\n\t *\n\t * ```\n\t *  vv              vv\n\t * abcdefg ===> adefbcg\n\t *      ^          ^\n\t *      targetPos  movedRangeStart\n\t *      offset 6   offset 4\n\t *```\n\t */\n\tpublic getMovedRangeStart(): Position {\n\t\treturn this.targetPosition._getTransformedByDeletion( this.sourcePosition, this.howMany )!;\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\tconst newTargetPosition = this.sourcePosition._getTransformedByInsertion( this.targetPosition, this.howMany );\n\n\t\treturn new MoveOperation( this.getMovedRangeStart(), this.howMany, newTargetPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst sourceElement = this.sourcePosition.parent;\n\t\tconst targetElement = this.targetPosition.parent;\n\t\tconst sourceOffset = this.sourcePosition.offset;\n\t\tconst targetOffset = this.targetPosition.offset;\n\n\t\t// Validate whether move operation has correct parameters.\n\t\t// Validation is pretty complex but move operation is one of the core ways to manipulate the document state.\n\t\t// We expect that many errors might be connected with one of scenarios described below.\n\t\tif ( sourceOffset + this.howMany > sourceElement.maxOffset ) {\n\t\t\t/**\n\t\t\t * The nodes which should be moved do not exist.\n\t\t\t *\n\t\t\t * @error move-operation-nodes-do-not-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'move-operation-nodes-do-not-exist', this\n\t\t\t);\n\t\t} else if ( sourceElement === targetElement && sourceOffset < targetOffset && targetOffset < sourceOffset + this.howMany ) {\n\t\t\t/**\n\t\t\t * Trying to move a range of nodes into the middle of that range.\n\t\t\t *\n\t\t\t * @error move-operation-range-into-itself\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'move-operation-range-into-itself', this\n\t\t\t);\n\t\t} else if ( this.sourcePosition.root == this.targetPosition.root ) {\n\t\t\tif ( compareArrays( this.sourcePosition.getParentPath(), this.targetPosition.getParentPath() ) == 'prefix' ) {\n\t\t\t\tconst i = this.sourcePosition.path.length - 1;\n\n\t\t\t\tif ( this.targetPosition.path[ i ] >= sourceOffset && this.targetPosition.path[ i ] < sourceOffset + this.howMany ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Trying to move a range of nodes into one of nodes from that range.\n\t\t\t\t\t *\n\t\t\t\t\t * @error move-operation-node-into-itself\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t\t'move-operation-node-into-itself', this\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t_move( Range._createFromPositionAndShift( this.sourcePosition, this.howMany ), this.targetPosition );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.sourcePosition = this.sourcePosition.toJSON();\n\t\tjson.targetPosition = this.targetPosition.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'MoveOperation';\n\t}\n\n\t/**\n\t * Creates `MoveOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): MoveOperation {\n\t\tconst sourcePosition = Position.fromJSON( json.sourcePosition, document );\n\t\tconst targetPosition = Position.fromJSON( json.targetPosition, document );\n\n\t\treturn new this( sourcePosition, json.howMany, targetPosition, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \tconst range = ModelRange._createFromPositionAndShift( this.sourcePosition, this.howMany );\n\n\t// @if CK_DEBUG_ENGINE // \treturn `MoveOperation( ${ this.baseVersion } ): ${ range } -> ${ this.targetPosition }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/insertoperation\n */\n\nimport Operation from './operation';\nimport Position from '../position';\nimport NodeList from '../nodelist';\nimport MoveOperation from './moveoperation';\nimport { _insert, _normalizeNodes, type NodeSet } from './utils';\nimport Text from '../text';\nimport Element from '../element';\n\nimport type Document from '../document';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to insert one or more nodes at given position in the model.\n */\nexport default class InsertOperation extends Operation {\n\t/**\n\t * Position of insertion.\n\t *\n\t * @readonly\n\t */\n\tpublic position: Position;\n\n\t/**\n\t * List of nodes to insert.\n\t *\n\t * @readonly\n\t */\n\tpublic nodes: NodeList;\n\n\t/**\n\t * Flag deciding how the operation should be transformed. If set to `true`, nodes might get additional attributes\n\t * during operational transformation. This happens when the operation insertion position is inside of a range\n\t * where attributes have changed.\n\t */\n\tpublic shouldReceiveAttributes: boolean;\n\n\t/**\n\t * Creates an insert operation.\n\t *\n\t * @param position Position of insertion.\n\t * @param nodes The list of nodes to be inserted.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( position: Position, nodes: NodeSet, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\tthis.position = position.clone();\n\t\tthis.position.stickiness = 'toNone';\n\t\tthis.nodes = new NodeList( _normalizeNodes( nodes ) );\n\t\tthis.shouldReceiveAttributes = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'insert' {\n\t\treturn 'insert';\n\t}\n\n\t/**\n\t * Total offset size of inserted nodes.\n\t */\n\tpublic get howMany(): number {\n\t\treturn this.nodes.maxOffset;\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t */\n\tpublic clone(): InsertOperation {\n\t\tconst nodes = new NodeList( [ ...this.nodes ].map( node => node._clone( true ) ) );\n\t\tconst insert = new InsertOperation( this.position, nodes, this.baseVersion );\n\n\t\tinsert.shouldReceiveAttributes = this.shouldReceiveAttributes;\n\n\t\treturn insert;\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\tconst graveyard = this.position.root.document!.graveyard;\n\t\tconst gyPosition = new Position( graveyard, [ 0 ] );\n\n\t\treturn new MoveOperation( this.position, this.nodes.maxOffset, gyPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst targetElement = this.position.parent;\n\n\t\tif ( !targetElement || targetElement.maxOffset < this.position.offset ) {\n\t\t\t/**\n\t\t\t * Insertion position is invalid.\n\t\t\t *\n\t\t\t * @error insert-operation-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'insert-operation-position-invalid',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t// What happens here is that we want original nodes be passed to writer because we want original nodes\n\t\t// to be inserted to the model. But in InsertOperation, we want to keep those nodes as they were added\n\t\t// to the operation, not modified. For example, text nodes can get merged or cropped while Elements can\n\t\t// get children. It is important that InsertOperation has the copy of original nodes in intact state.\n\t\tconst originalNodes = this.nodes;\n\t\tthis.nodes = new NodeList( [ ...originalNodes ].map( node => node._clone( true ) ) );\n\n\t\t_insert( this.position, originalNodes );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.position = this.position.toJSON();\n\t\tjson.nodes = this.nodes.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'InsertOperation';\n\t}\n\n\t/**\n\t * Creates `InsertOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): InsertOperation {\n\t\tconst children = [];\n\n\t\tfor ( const child of json.nodes ) {\n\t\t\tif ( child.name ) {\n\t\t\t\t// If child has name property, it is an Element.\n\t\t\t\tchildren.push( Element.fromJSON( child ) );\n\t\t\t} else {\n\t\t\t\t// Otherwise, it is a Text node.\n\t\t\t\tchildren.push( Text.fromJSON( child ) );\n\t\t\t}\n\t\t}\n\n\t\tconst insert = new InsertOperation( Position.fromJSON( json.position, document ), children, json.baseVersion );\n\t\tinsert.shouldReceiveAttributes = json.shouldReceiveAttributes;\n\n\t\treturn insert;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \tconst nodeString = this.nodes.length > 1 ? `[ ${ this.nodes.length } ]` : this.nodes.getNode( 0 );\n\n\t// @if CK_DEBUG_ENGINE // \treturn `InsertOperation( ${ this.baseVersion } ): ${ nodeString } -> ${ this.position }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/splitoperation\n */\n\nimport Operation from './operation';\nimport MergeOperation from './mergeoperation';\nimport Position from '../position';\nimport Range from '../range';\nimport { _insert, _move } from './utils';\n\nimport type Document from '../document';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to split {@link module:engine/model/element~Element an element} at given\n * {@link module:engine/model/operation/splitoperation~SplitOperation#splitPosition split position} into two elements,\n * both containing a part of the element's original content.\n */\nexport default class SplitOperation extends Operation {\n\t/**\n\t * Position at which an element should be split.\n\t */\n\tpublic splitPosition: Position;\n\n\t/**\n\t * Total offset size of elements that are in the split element after `position`.\n\t */\n\tpublic howMany: number;\n\n\t/**\n\t * Position at which the clone of split element (or element from graveyard) will be inserted.\n\t */\n\tpublic insertionPosition: Position;\n\n\t/**\n\t * Position in the graveyard root before the element which should be used as a parent of the nodes after `position`.\n\t * If it is not set, a copy of the the `position` parent will be used.\n\t *\n\t * The default behavior is to clone the split element. Element from graveyard is used during undo.\n\t */\n\tpublic graveyardPosition: Position | null;\n\n\t/**\n\t * Creates a split operation.\n\t *\n\t * @param splitPosition Position at which an element should be split.\n\t * @param howMany Total offset size of elements that are in the split element after `position`.\n\t * @param insertionPosition Position at which the clone of split element (or element from graveyard) will be inserted.\n\t * @param graveyardPosition Position in the graveyard root before the element which\n\t * should be used as a parent of the nodes after `position`. If it is not set, a copy of the the `position` parent will be used.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\tsplitPosition: Position,\n\t\thowMany: number,\n\t\tinsertionPosition: Position,\n\t\tgraveyardPosition: Position | null,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\tthis.splitPosition = splitPosition.clone();\n\t\t// Keep position sticking to the next node. This way any new content added at the place where the element is split\n\t\t// will be left in the original element.\n\t\tthis.splitPosition.stickiness = 'toNext';\n\n\t\tthis.howMany = howMany;\n\t\tthis.insertionPosition = insertionPosition;\n\t\tthis.graveyardPosition = graveyardPosition ? graveyardPosition.clone() : null;\n\n\t\tif ( this.graveyardPosition ) {\n\t\t\tthis.graveyardPosition.stickiness = 'toNext';\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'split' {\n\t\treturn 'split';\n\t}\n\n\t/**\n\t * Position inside the new clone of a split element.\n\t *\n\t * This is a position where nodes that are after the split position will be moved to.\n\t */\n\tpublic get moveTargetPosition(): Position {\n\t\tconst path = this.insertionPosition.path.slice();\n\t\tpath.push( 0 );\n\n\t\treturn new Position( this.insertionPosition.root, path );\n\t}\n\n\t/**\n\t * Artificial range that contains all the nodes from the split element that will be moved to the new element.\n\t * The range starts at {@link #splitPosition} and ends in the same parent, at `POSITIVE_INFINITY` offset.\n\t */\n\tpublic get movedRange(): Range {\n\t\tconst end = this.splitPosition.getShiftedBy( Number.POSITIVE_INFINITY );\n\n\t\treturn new Range( this.splitPosition, end );\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns Clone of this operation.\n\t */\n\tpublic clone(): SplitOperation {\n\t\treturn new SplitOperation( this.splitPosition, this.howMany, this.insertionPosition, this.graveyardPosition, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\tconst graveyard = this.splitPosition.root.document!.graveyard;\n\t\tconst graveyardPosition = new Position( graveyard, [ 0 ] );\n\n\t\treturn new MergeOperation( this.moveTargetPosition, this.howMany, this.splitPosition, graveyardPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst element = this.splitPosition.parent;\n\t\tconst offset = this.splitPosition.offset;\n\n\t\t// Validate whether split operation has correct parameters.\n\t\tif ( !element || element.maxOffset < offset ) {\n\t\t\t/**\n\t\t\t * Split position is invalid.\n\t\t\t *\n\t\t\t * @error split-operation-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-position-invalid', this );\n\t\t} else if ( !element.parent ) {\n\t\t\t/**\n\t\t\t * Cannot split root element.\n\t\t\t *\n\t\t\t * @error split-operation-split-in-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-split-in-root', this );\n\t\t} else if ( this.howMany != element.maxOffset - this.splitPosition.offset ) {\n\t\t\t/**\n\t\t\t * Split operation specifies wrong number of nodes to move.\n\t\t\t *\n\t\t\t * @error split-operation-how-many-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-how-many-invalid', this );\n\t\t} else if ( this.graveyardPosition && !this.graveyardPosition.nodeAfter ) {\n\t\t\t/**\n\t\t\t * Graveyard position invalid.\n\t\t\t *\n\t\t\t * @error split-operation-graveyard-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'split-operation-graveyard-position-invalid', this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tconst splitElement = this.splitPosition.parent;\n\n\t\tif ( this.graveyardPosition ) {\n\t\t\t_move( Range._createFromPositionAndShift( this.graveyardPosition, 1 ), this.insertionPosition );\n\t\t} else {\n\t\t\tconst newElement = ( splitElement as any )._clone();\n\n\t\t\t_insert( this.insertionPosition, newElement );\n\t\t}\n\n\t\tconst sourceRange = new Range(\n\t\t\tPosition._createAt( splitElement, this.splitPosition.offset ),\n\t\t\tPosition._createAt( splitElement, splitElement.maxOffset )\n\t\t);\n\n\t\t_move( sourceRange, this.moveTargetPosition );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.splitPosition = this.splitPosition.toJSON();\n\t\tjson.insertionPosition = this.insertionPosition.toJSON();\n\n\t\tif ( this.graveyardPosition ) {\n\t\t\tjson.graveyardPosition = this.graveyardPosition.toJSON();\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'SplitOperation';\n\t}\n\n\t/**\n\t * Helper function that returns a default insertion position basing on given `splitPosition`. The default insertion\n\t * position is after the split element.\n\t */\n\tpublic static getInsertionPosition( splitPosition: Position ): Position {\n\t\tconst path = splitPosition.path.slice( 0, -1 );\n\t\tpath[ path.length - 1 ]++;\n\n\t\treturn new Position( splitPosition.root, path, 'toPrevious' );\n\t}\n\n\t/**\n\t * Creates `SplitOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): SplitOperation {\n\t\tconst splitPosition = Position.fromJSON( json.splitPosition, document );\n\t\tconst insertionPosition = Position.fromJSON( json.insertionPosition, document );\n\t\tconst graveyardPosition = json.graveyardPosition ? Position.fromJSON( json.graveyardPosition, document ) : null;\n\n\t\treturn new this( splitPosition, json.howMany, insertionPosition, graveyardPosition, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `SplitOperation( ${ this.baseVersion } ): ${ this.splitPosition } ` +\n\t// @if CK_DEBUG_ENGINE // \t`( ${ this.howMany } ) -> ${ this.insertionPosition }` +\n\t// @if CK_DEBUG_ENGINE // \t`${ this.graveyardPosition ? ' with ' + this.graveyardPosition : '' }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/mergeoperation\n */\n\nimport Operation from './operation';\nimport SplitOperation from './splitoperation';\nimport Position from '../position';\nimport Range from '../range';\nimport { _move } from './utils';\n\nimport type Document from '../document';\nimport type Element from '../element';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to merge two {@link module:engine/model/element~Element elements}.\n *\n * The merged element is the parent of {@link ~MergeOperation#sourcePosition} and it is merged into the parent of\n * {@link ~MergeOperation#targetPosition}. All nodes from the merged element are moved to {@link ~MergeOperation#targetPosition}.\n *\n * The merged element is moved to the graveyard at {@link ~MergeOperation#graveyardPosition}.\n */\nexport default class MergeOperation extends Operation {\n\t/**\n\t * Position inside the merged element. All nodes from that element after that position will be moved to {@link #targetPosition}.\n\t */\n\tpublic sourcePosition: Position;\n\n\t/**\n\t * Summary offset size of nodes which will be moved from the merged element to the new parent.\n\t */\n\tpublic howMany: number;\n\n\t/**\n\t * Position which the nodes from the merged elements will be moved to.\n\t */\n\tpublic targetPosition: Position;\n\n\t/**\n\t * Position in graveyard to which the merged element will be moved.\n\t */\n\tpublic graveyardPosition: Position;\n\n\t/**\n\t * Creates a merge operation.\n\t *\n\t * @param sourcePosition Position inside the merged element. All nodes from that\n\t * element after that position will be moved to {@link #targetPosition}.\n\t * @param howMany Summary offset size of nodes which will be moved from the merged element to the new parent.\n\t * @param targetPosition Position which the nodes from the merged elements will be moved to.\n\t * @param graveyardPosition Position in graveyard to which the merged element will be moved.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\tsourcePosition: Position,\n\t\thowMany: number,\n\t\ttargetPosition: Position,\n\t\tgraveyardPosition: Position,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\tthis.sourcePosition = sourcePosition.clone();\n\t\t// This is, and should always remain, the first position in its parent.\n\t\tthis.sourcePosition.stickiness = 'toPrevious';\n\n\t\tthis.howMany = howMany;\n\t\tthis.targetPosition = targetPosition.clone();\n\n\t\t// Except of a rare scenario in `MergeOperation` x `MergeOperation` transformation,\n\t\t// this is, and should always remain, the last position in its parent.\n\t\tthis.targetPosition.stickiness = 'toNext';\n\t\tthis.graveyardPosition = graveyardPosition.clone();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'merge' {\n\t\treturn 'merge';\n\t}\n\n\t/**\n\t * Position before the merged element (which will be deleted).\n\t */\n\tpublic get deletionPosition(): Position {\n\t\treturn new Position( this.sourcePosition.root, this.sourcePosition.path.slice( 0, -1 ) );\n\t}\n\n\t/**\n\t * Artificial range that contains all the nodes from the merged element that will be moved to {@link ~MergeOperation#sourcePosition}.\n\t * The range starts at {@link ~MergeOperation#sourcePosition} and ends in the same parent, at `POSITIVE_INFINITY` offset.\n\t */\n\tpublic get movedRange(): Range {\n\t\tconst end = this.sourcePosition.getShiftedBy( Number.POSITIVE_INFINITY );\n\n\t\treturn new Range( this.sourcePosition, end );\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t */\n\tpublic clone(): MergeOperation {\n\t\treturn new MergeOperation( this.sourcePosition, this.howMany, this.targetPosition, this.graveyardPosition, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\t// Positions in this method are transformed by this merge operation because the split operation bases on\n\t\t// the context after this merge operation happened (because split operation reverses it).\n\t\t// So we need to acknowledge that the merge operation happened and those positions changed a little.\n\t\tconst targetPosition = this.targetPosition._getTransformedByMergeOperation( this );\n\n\t\tconst path = this.sourcePosition.path.slice( 0, -1 );\n\t\tconst insertionPosition = new Position( this.sourcePosition.root, path )._getTransformedByMergeOperation( this );\n\n\t\treturn new SplitOperation( targetPosition, this.howMany, insertionPosition, this.graveyardPosition, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst sourceElement = this.sourcePosition.parent;\n\t\tconst targetElement = this.targetPosition.parent;\n\n\t\t// Validate whether merge operation has correct parameters.\n\t\tif ( !sourceElement.parent ) {\n\t\t\t/**\n\t\t\t * Merge source position is invalid. The element to be merged must have a parent node.\n\t\t\t *\n\t\t\t * @error merge-operation-source-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'merge-operation-source-position-invalid', this );\n\t\t} else if ( !targetElement.parent ) {\n\t\t\t/**\n\t\t\t * Merge target position is invalid. The element to be merged must have a parent node.\n\t\t\t *\n\t\t\t * @error merge-operation-target-position-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'merge-operation-target-position-invalid', this );\n\t\t} else if ( this.howMany != sourceElement.maxOffset ) {\n\t\t\t/**\n\t\t\t * Merge operation specifies wrong number of nodes to move.\n\t\t\t *\n\t\t\t * @error merge-operation-how-many-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'merge-operation-how-many-invalid', this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tconst mergedElement = this.sourcePosition.parent as Element;\n\t\tconst sourceRange = Range._createIn( mergedElement );\n\n\t\t_move( sourceRange, this.targetPosition );\n\t\t_move( Range._createOn( mergedElement ), this.graveyardPosition );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.sourcePosition = json.sourcePosition.toJSON();\n\t\tjson.targetPosition = json.targetPosition.toJSON();\n\t\tjson.graveyardPosition = json.graveyardPosition.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'MergeOperation';\n\t}\n\n\t/**\n\t * Creates `MergeOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): MergeOperation {\n\t\tconst sourcePosition = Position.fromJSON( json.sourcePosition, document );\n\t\tconst targetPosition = Position.fromJSON( json.targetPosition, document );\n\t\tconst graveyardPosition = Position.fromJSON( json.graveyardPosition, document );\n\n\t\treturn new this( sourcePosition, json.howMany, targetPosition, graveyardPosition, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `MergeOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE // \t\t`${ this.sourcePosition } -> ${ this.targetPosition }` +\n\t// @if CK_DEBUG_ENGINE // \t\t` ( ${ this.howMany } ), ${ this.graveyardPosition }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/markeroperation\n */\n\nimport Operation from './operation';\nimport Range from '../range';\n\nimport type Document from '../document';\nimport type MarkerCollection from '../markercollection';\n\nexport default class MarkerOperation extends Operation {\n\t/**\n\t * Marker name.\n\t *\n\t * @readonly\n\t */\n\tpublic name: string;\n\n\t/**\n\t * Marker range before the change.\n\t *\n\t * @readonly\n\t */\n\tpublic oldRange: Range | null;\n\n\t/**\n\t * Marker range after the change.\n\t *\n\t * @readonly\n\t */\n\tpublic newRange: Range | null;\n\n\t/**\n\t * Specifies whether the marker operation affects the data produced by the data pipeline\n\t * (is persisted in the editor's data).\n\t *\n\t * @readonly\n\t */\n\tpublic affectsData: boolean;\n\n\t/**\n\t * Marker collection on which change should be executed.\n\t */\n\tprivate readonly _markers: MarkerCollection;\n\n\t/**\n\t * @param name Marker name.\n\t * @param oldRange Marker range before the change.\n\t * @param newRange Marker range after the change.\n\t * @param markers Marker collection on which change should be executed.\n\t * @param affectsData Specifies whether the marker operation affects the data produced by the data pipeline\n\t * (is persisted in the editor's data).\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\tname: string,\n\t\toldRange: Range | null,\n\t\tnewRange: Range | null,\n\t\tmarkers: MarkerCollection,\n\t\taffectsData: boolean,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\tthis.name = name;\n\t\tthis.oldRange = oldRange ? oldRange.clone() : null;\n\t\tthis.newRange = newRange ? newRange.clone() : null;\n\t\tthis.affectsData = affectsData;\n\n\t\tthis._markers = markers;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'marker' {\n\t\treturn 'marker';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t */\n\tpublic clone(): MarkerOperation {\n\t\treturn new MarkerOperation( this.name, this.oldRange, this.newRange, this._markers, this.affectsData, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new MarkerOperation( this.name, this.newRange, this.oldRange, this._markers, this.affectsData, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tif ( this.newRange ) {\n\t\t\tthis._markers._set( this.name, this.newRange, true, this.affectsData );\n\t\t} else {\n\t\t\tthis._markers._remove( this.name );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tif ( this.oldRange ) {\n\t\t\tjson.oldRange = this.oldRange.toJSON();\n\t\t}\n\n\t\tif ( this.newRange ) {\n\t\t\tjson.newRange = this.newRange.toJSON();\n\t\t}\n\n\t\tdelete json._markers;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'MarkerOperation';\n\t}\n\n\t/**\n\t * Creates `MarkerOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): MarkerOperation {\n\t\treturn new MarkerOperation(\n\t\t\tjson.name,\n\t\t\tjson.oldRange ? Range.fromJSON( json.oldRange, document ) : null,\n\t\t\tjson.newRange ? Range.fromJSON( json.newRange, document ) : null,\n\t\t\tdocument.model.markers,\n\t\t\tjson.affectsData,\n\t\t\tjson.baseVersion\n\t\t);\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `MarkerOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`\"${ this.name }\": ${ this.oldRange } -> ${ this.newRange }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","import baseIsEqual from './_baseIsEqual.js';\n\n/**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\nfunction isEqual(value, other) {\n  return baseIsEqual(value, other);\n}\n\nexport default isEqual;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/attributeoperation\n */\n\nimport Operation from './operation';\nimport { _setAttribute } from './utils';\nimport Range from '../range';\n\nimport type Document from '../document';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\nimport { isEqual } from 'lodash-es';\n\n/**\n * Operation to change nodes' attribute.\n *\n * Using this class you can add, remove or change value of the attribute.\n */\nexport default class AttributeOperation extends Operation {\n\t/**\n\t * Range on which operation should be applied.\n\t *\n\t * @readonly\n\t */\n\tpublic range: Range;\n\n\t/**\n\t * Key of an attribute to change or remove.\n\t *\n\t * @readonly\n\t */\n\tpublic key: string;\n\n\t/**\n\t * Old value of the attribute with given key or `null`, if attribute was not set before.\n\t *\n\t * @readonly\n\t */\n\tpublic oldValue: unknown;\n\n\t/**\n\t * New value of the attribute with given key or `null`, if operation should remove attribute.\n\t *\n\t * @readonly\n\t */\n\tpublic newValue: unknown;\n\n\t/**\n\t * Creates an operation that changes, removes or adds attributes.\n\t *\n\t * If only `newValue` is set, attribute will be added on a node. Note that all nodes in operation's range must not\n\t * have an attribute with the same key as the added attribute.\n\t *\n\t * If only `oldValue` is set, then attribute with given key will be removed. Note that all nodes in operation's range\n\t * must have an attribute with that key added.\n\t *\n\t * If both `newValue` and `oldValue` are set, then the operation will change the attribute value. Note that all nodes in\n\t * operation's ranges must already have an attribute with given key and `oldValue` as value\n\t *\n\t * @param range Range on which the operation should be applied. Must be a flat range.\n\t * @param key Key of an attribute to change or remove.\n\t * @param oldValue Old value of the attribute with given key or `null`, if attribute was not set before.\n\t * @param newValue New value of the attribute with given key or `null`, if operation should remove attribute.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( range: Range, key: string, oldValue: unknown, newValue: unknown, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\tthis.range = range.clone();\n\t\tthis.key = key;\n\t\tthis.oldValue = oldValue === undefined ? null : oldValue;\n\t\tthis.newValue = newValue === undefined ? null : newValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'addAttribute' | 'removeAttribute' | 'changeAttribute' {\n\t\tif ( this.oldValue === null ) {\n\t\t\treturn 'addAttribute';\n\t\t} else if ( this.newValue === null ) {\n\t\t\treturn 'removeAttribute';\n\t\t} else {\n\t\t\treturn 'changeAttribute';\n\t\t}\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t */\n\tpublic clone(): AttributeOperation {\n\t\treturn new AttributeOperation( this.range, this.key, this.oldValue, this.newValue, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new AttributeOperation( this.range, this.key, this.newValue, this.oldValue, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.range = this.range.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tif ( !this.range.isFlat ) {\n\t\t\t/**\n\t\t\t * The range to change is not flat.\n\t\t\t *\n\t\t\t * @error attribute-operation-range-not-flat\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'attribute-operation-range-not-flat', this );\n\t\t}\n\n\t\tfor ( const item of this.range.getItems( { shallow: true } ) ) {\n\t\t\tif ( this.oldValue !== null && !isEqual( item.getAttribute( this.key ), this.oldValue ) ) {\n\t\t\t\t/**\n\t\t\t\t * Changed node has different attribute value than operation's old attribute value.\n\t\t\t\t *\n\t\t\t\t * @error attribute-operation-wrong-old-value\n\t\t\t\t * @param item\n\t\t\t\t * @param key\n\t\t\t\t * @param value\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'attribute-operation-wrong-old-value',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ item, key: this.key, value: this.oldValue }\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tif ( this.oldValue === null && this.newValue !== null && item.hasAttribute( this.key ) ) {\n\t\t\t\t/**\n\t\t\t\t * The attribute with given key already exists for the given node.\n\t\t\t\t *\n\t\t\t\t * @error attribute-operation-attribute-exists\n\t\t\t\t * @param node\n\t\t\t\t * @param key\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'attribute-operation-attribute-exists',\n\t\t\t\t\tthis,\n\t\t\t\t\t{ node: item, key: this.key }\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t// If value to set is same as old value, don't do anything.\n\t\tif ( !isEqual( this.oldValue, this.newValue ) ) {\n\t\t\t// Execution.\n\t\t\t_setAttribute( this.range, this.key, this.newValue );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'AttributeOperation';\n\t}\n\n\t/**\n\t * Creates `AttributeOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): AttributeOperation {\n\t\treturn new AttributeOperation( Range.fromJSON( json.range, document ), json.key, json.oldValue, json.newValue, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `AttributeOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE // \t\t`\"${ this.key }\": ${ JSON.stringify( this.oldValue ) }` +\n\t// @if CK_DEBUG_ENGINE // \t\t` -> ${ JSON.stringify( this.newValue ) }, ${ this.range }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/nooperation\n */\n\nimport Operation from './operation';\n\n/**\n * Operation which is doing nothing (\"empty operation\", \"do-nothing operation\", \"noop\"). This is an operation,\n * which when executed does not change the tree model. It still has some parameters defined for transformation purposes.\n *\n * In most cases this operation is a result of transforming operations. When transformation returns\n * {@link module:engine/model/operation/nooperation~NoOperation} it means that changes done by the transformed operation\n * have already been applied.\n */\nexport default class NoOperation extends Operation {\n\tpublic get type(): 'noop' {\n\t\treturn 'noop';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t */\n\tpublic clone(): NoOperation {\n\t\treturn new NoOperation( this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new NoOperation( this.baseVersion! + 1 );\n\t}\n\n\t/** @internal */\n\tpublic _execute(): void {\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'NoOperation';\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `NoOperation( ${ this.baseVersion } )`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/renameoperation\n */\n\nimport Operation from './operation';\nimport Element from '../element';\nimport Position from '../position';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type Document from '../document';\n\n/**\n * Operation to change element's name.\n *\n * Using this class you can change element's name.\n */\nexport default class RenameOperation extends Operation {\n\t/**\n\t * Position before an element to change.\n\t */\n\tpublic position: Position;\n\n\t/**\n\t * Current name of the element.\n\t */\n\tpublic oldName: string;\n\n\t/**\n\t * New name for the element.\n\t */\n\tpublic newName: string;\n\n\t/**\n\t * Creates an operation that changes element's name.\n\t *\n\t * @param position Position before an element to change.\n\t * @param oldName Current name of the element.\n\t * @param newName New name for the element.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor( position: Position, oldName: string, newName: string, baseVersion: number | null ) {\n\t\tsuper( baseVersion );\n\n\t\tthis.position = position;\n\t\t// This position sticks to the next node because it is a position before the node that we want to change.\n\t\tthis.position.stickiness = 'toNext';\n\n\t\tthis.oldName = oldName;\n\t\tthis.newName = newName;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'rename' {\n\t\treturn 'rename';\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns Clone of this operation.\n\t */\n\tpublic clone(): RenameOperation {\n\t\treturn new RenameOperation( this.position.clone(), this.oldName, this.newName, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new RenameOperation( this.position.clone(), this.newName, this.oldName, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tconst element = this.position.nodeAfter;\n\n\t\tif ( !( element instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Given position is invalid or node after it is not instance of Element.\n\t\t\t *\n\t\t\t * @error rename-operation-wrong-position\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rename-operation-wrong-position',\n\t\t\t\tthis\n\t\t\t);\n\t\t} else if ( element.name !== this.oldName ) {\n\t\t\t/**\n\t\t\t * Element to change has different name than operation's old name.\n\t\t\t *\n\t\t\t * @error rename-operation-wrong-name\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rename-operation-wrong-name',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\tconst element = this.position.nodeAfter;\n\n\t\t( element as any ).name = this.newName;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.position = this.position.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'RenameOperation';\n\t}\n\n\t/**\n\t * Creates `RenameOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): RenameOperation {\n\t\treturn new RenameOperation( Position.fromJSON( json.position, document ), json.oldName, json.newName, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `RenameOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE // \t\t`${ this.position }: \"${ this.oldName }\" -> \"${ this.newName }\"`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/rootattributeoperation\n */\n\nimport Operation from './operation';\n\nimport type Document from '../document';\nimport type RootElement from '../rootelement';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation to change root element's attribute. Using this class you can add, remove or change value of the attribute.\n *\n * This operation is needed, because root elements can't be changed through\n * {@link module:engine/model/operation/attributeoperation~AttributeOperation}.\n * It is because {@link module:engine/model/operation/attributeoperation~AttributeOperation}\n * requires a range to change and root element can't\n * be a part of range because every {@link module:engine/model/position~Position} has to be inside a root.\n * {@link module:engine/model/position~Position} can't be created before a root element.\n */\nexport default class RootAttributeOperation extends Operation {\n\t/**\n\t * Root element to change.\n\t */\n\tpublic readonly root: RootElement;\n\n\t/**\n\t * Key of an attribute to change or remove.\n\t */\n\tpublic readonly key: string;\n\n\t/**\n\t * Old value of the attribute with given key or `null`, if attribute was not set before.\n\t *\n\t * @readonly\n\t */\n\tpublic oldValue: unknown;\n\n\t/**\n\t * New value of the attribute with given key or `null`, if operation should remove attribute.\n\t *\n\t * @readonly\n\t */\n\tpublic newValue: unknown;\n\n\t/**\n\t * Creates an operation that changes, removes or adds attributes on root element.\n\t *\n\t * @see module:engine/model/operation/attributeoperation~AttributeOperation\n\t * @param root Root element to change.\n\t * @param key Key of an attribute to change or remove.\n\t * @param oldValue Old value of the attribute with given key or `null`, if attribute was not set before.\n\t * @param newValue New value of the attribute with given key or `null`, if operation should remove attribute.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation\n\t * can be applied or `null` if the operation operates on detached (non-document) tree.\n\t */\n\tconstructor(\n\t\troot: RootElement,\n\t\tkey: string,\n\t\toldValue: unknown,\n\t\tnewValue: unknown,\n\t\tbaseVersion: number | null\n\t) {\n\t\tsuper( baseVersion );\n\n\t\tthis.root = root;\n\t\tthis.key = key;\n\t\tthis.oldValue = oldValue === undefined ? null : oldValue;\n\t\tthis.newValue = newValue === undefined ? null : newValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'addRootAttribute' | 'removeRootAttribute' | 'changeRootAttribute' {\n\t\tif ( this.oldValue === null ) {\n\t\t\treturn 'addRootAttribute';\n\t\t} else if ( this.newValue === null ) {\n\t\t\treturn 'removeRootAttribute';\n\t\t} else {\n\t\t\treturn 'changeRootAttribute';\n\t\t}\n\t}\n\n\t/**\n\t * Creates and returns an operation that has the same parameters as this operation.\n\t *\n\t * @returns Clone of this operation.\n\t */\n\tpublic clone(): RootAttributeOperation {\n\t\treturn new RootAttributeOperation( this.root, this.key, this.oldValue, this.newValue, this.baseVersion );\n\t}\n\n\t/**\n\t * See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.\n\t */\n\tpublic getReversed(): Operation {\n\t\treturn new RootAttributeOperation( this.root, this.key, this.newValue, this.oldValue, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tif ( this.root != this.root.root || this.root.is( 'documentFragment' ) ) {\n\t\t\t/**\n\t\t\t * The element to change is not a root element.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-not-a-root\n\t\t\t * @param root\n\t\t\t * @param key\n\t\t\t * @param value\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rootattribute-operation-not-a-root',\n\t\t\t\tthis,\n\t\t\t\t{ root: this.root, key: this.key }\n\t\t\t);\n\t\t}\n\n\t\tif ( this.oldValue !== null && this.root.getAttribute( this.key ) !== this.oldValue ) {\n\t\t\t/**\n\t\t\t * The attribute which should be removed does not exist for the given node.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-wrong-old-value\n\t\t\t * @param root\n\t\t\t * @param key\n\t\t\t * @param value\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rootattribute-operation-wrong-old-value',\n\t\t\t\tthis,\n\t\t\t\t{ root: this.root, key: this.key }\n\t\t\t);\n\t\t}\n\n\t\tif ( this.oldValue === null && this.newValue !== null && this.root.hasAttribute( this.key ) ) {\n\t\t\t/**\n\t\t\t * The attribute with given key already exists for the given node.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-attribute-exists\n\t\t\t * @param root\n\t\t\t * @param key\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'rootattribute-operation-attribute-exists',\n\t\t\t\tthis,\n\t\t\t\t{ root: this.root, key: this.key }\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _execute(): void {\n\t\tif ( this.newValue !== null ) {\n\t\t\tthis.root._setAttribute( this.key, this.newValue );\n\t\t} else {\n\t\t\tthis.root._removeAttribute( this.key );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.root = this.root.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'RootAttributeOperation';\n\t}\n\n\t/**\n\t * Creates `RootAttributeOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): RootAttributeOperation {\n\t\tif ( !document.getRoot( json.root ) ) {\n\t\t\t/**\n\t\t\t * Cannot create RootAttributeOperation for document. Root with specified name does not exist.\n\t\t\t *\n\t\t\t * @error rootattribute-operation-fromjson-no-root\n\t\t\t * @param rootName\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'rootattribute-operation-fromjson-no-root', this, { rootName: json.root } );\n\t\t}\n\n\t\treturn new RootAttributeOperation( document.getRoot( json.root )!, json.key, json.oldValue, json.newValue, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `RootAttributeOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`\"${ this.key }\": ${ JSON.stringify( this.oldValue ) }` +\n\t// @if CK_DEBUG_ENGINE //\t\t` -> ${ JSON.stringify( this.newValue ) }, ${ this.root.rootName }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/rootoperation\n */\n\nimport Operation from './operation';\n\nimport type Document from '../document';\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Operation that creates (or attaches) or detaches a root element.\n */\nexport default class RootOperation extends Operation {\n\t/**\n\t * Root name to create or detach.\n\t */\n\tpublic readonly rootName: string;\n\n\t/**\n\t * Root element name.\n\t */\n\tpublic readonly elementName: string;\n\n\t/**\n\t * Specifies whether the operation adds (`true`) or detaches the root (`false`).\n\t */\n\tpublic readonly isAdd: boolean;\n\n\t/**\n\t * Document which owns the root.\n\t */\n\tprivate readonly _document: Document;\n\n\t/**\n\t * Creates an operation that creates or removes a root element.\n\t *\n\t * @param rootName Root name to create or detach.\n\t * @param elementName Root element name.\n\t * @param isAdd Specifies whether the operation adds (`true`) or detaches the root (`false`).\n\t * @param document Document which owns the root.\n\t * @param baseVersion Document {@link module:engine/model/document~Document#version} on which operation can be applied.\n\t */\n\tconstructor(\n\t\trootName: string,\n\t\telementName: string,\n\t\tisAdd: boolean,\n\t\tdocument: Document,\n\t\tbaseVersion: number\n\t) {\n\t\tsuper( baseVersion );\n\n\t\tthis.rootName = rootName;\n\t\tthis.elementName = elementName;\n\t\tthis.isAdd = isAdd;\n\t\tthis._document = document;\n\n\t\t// Make sure that the root exists ASAP, this is important for RTC.\n\t\t// If the root was dynamically added, there will be more operations that operate on/in this root.\n\t\t// These operations will require root element instance (in operation property or in position instance).\n\t\t// If the root is not created ahead of time, instantiating such operations may fail.\n\t\tif ( !this._document.getRoot( this.rootName ) ) {\n\t\t\tconst root = this._document.createRoot( this.elementName, this.rootName );\n\n\t\t\troot._isAttached = false;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override get type(): 'addRoot' | 'detachRoot' {\n\t\treturn this.isAdd ? 'addRoot' : 'detachRoot';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override clone(): RootOperation {\n\t\treturn new RootOperation( this.rootName, this.elementName, this.isAdd, this._document, this.baseVersion! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override getReversed(): RootOperation {\n\t\treturn new RootOperation( this.rootName, this.elementName, !this.isAdd, this._document, this.baseVersion! + 1 );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override _validate(): void {\n\t\t// Keep in mind that at this point the root will always exist as it was created in the `constructor()`, even for detach operation.\n\t\tconst root = this._document.getRoot( this.rootName )!;\n\n\t\tif ( root.isAttached() && this.isAdd ) {\n\t\t\t/**\n\t\t\t * Trying to attach a root that is already attached.\n\t\t\t *\n\t\t\t * @error root-operation-root-attached\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'root-operation-root-attached',\n\t\t\t\tthis\n\t\t\t);\n\t\t} else if ( !root.isAttached() && !this.isAdd ) {\n\t\t\t/**\n\t\t\t * Trying to detach a root that is already detached.\n\t\t\t *\n\t\t\t * @error root-operation-root-detached\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'root-operation-root-detached',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override _execute(): void {\n\t\tthis._document.getRoot( this.rootName )!._isAttached = this.isAdd;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tdelete json._document;\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'RootOperation';\n\t}\n\n\t/**\n\t * Creates `RootOperation` object from deserialized object, i.e. from parsed JSON string.\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static override fromJSON( json: any, document: Document ): RootOperation {\n\t\treturn new RootOperation( json.rootName, json.elementName, json.isAdd, document, json.baseVersion );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn `RootOperation( ${ this.baseVersion } ): ` +\n\t// @if CK_DEBUG_ENGINE //\t\t`${ this.type } -> \"${ this.rootName }\" (${ this.elementName })`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/operationfactory\n */\n\nimport AttributeOperation from './attributeoperation';\nimport InsertOperation from './insertoperation';\nimport MarkerOperation from './markeroperation';\nimport MoveOperation from './moveoperation';\nimport NoOperation from './nooperation';\nimport Operation from './operation';\nimport RenameOperation from './renameoperation';\nimport RootAttributeOperation from './rootattributeoperation';\nimport RootOperation from './rootoperation';\nimport SplitOperation from './splitoperation';\nimport MergeOperation from './mergeoperation';\n\nimport type Document from '../document';\n\nconst operations: {\n\t[ className: string ]: {\n\t\tfromJSON( json: any, document: Document ): Operation;\n\t};\n} = {};\n\noperations[ AttributeOperation.className ] = AttributeOperation;\noperations[ InsertOperation.className ] = InsertOperation;\noperations[ MarkerOperation.className ] = MarkerOperation;\noperations[ MoveOperation.className ] = MoveOperation;\noperations[ NoOperation.className ] = NoOperation;\noperations[ Operation.className ] = Operation;\noperations[ RenameOperation.className ] = RenameOperation;\noperations[ RootAttributeOperation.className ] = RootAttributeOperation;\noperations[ RootOperation.className ] = RootOperation;\noperations[ SplitOperation.className ] = SplitOperation;\noperations[ MergeOperation.className ] = MergeOperation;\n\n/**\n * A factory class for creating operations.\n */\nexport default abstract class OperationFactory {\n\t/**\n\t * Creates an operation instance from a JSON object (parsed JSON string).\n\t *\n\t * @param json Deserialized JSON object.\n\t * @param document Document on which this operation will be applied.\n\t */\n\tpublic static fromJSON( json: any, document: Document ): Operation {\n\t\treturn operations[ json.__className ].fromJSON( json, document );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport InsertOperation from './insertoperation';\nimport AttributeOperation from './attributeoperation';\nimport RenameOperation from './renameoperation';\nimport MarkerOperation from './markeroperation';\nimport MoveOperation from './moveoperation';\nimport RootAttributeOperation from './rootattributeoperation';\nimport RootOperation from './rootoperation';\nimport MergeOperation from './mergeoperation';\nimport SplitOperation from './splitoperation';\nimport NoOperation from './nooperation';\nimport Range from '../range';\nimport Position from '../position';\n\nimport type Operation from './operation';\nimport type Document from '../document';\nimport type History from '../history';\n\nimport { compareArrays } from '@ckeditor/ckeditor5-utils';\n\ntype TransformationFunction = ( a: Operation, b: Operation, context: TransformationContext ) => Array<Operation>;\n\nconst transformations = new Map<Function, Map<Function, TransformationFunction>>();\n\n/**\n * @module engine/model/operation/transform\n */\n\n/**\n * Sets a transformation function to be be used to transform instances of class `OperationA` by instances of class `OperationB`.\n *\n * The `transformationFunction` is passed three parameters:\n *\n * * `a` - operation to be transformed, an instance of `OperationA`,\n * * `b` - operation to be transformed by, an instance of `OperationB`,\n * * {@link module:engine/model/operation/transform~TransformationContext `context`} - object with additional information about\n * transformation context.\n *\n * The `transformationFunction` should return transformation result, which is an array with one or multiple\n * {@link module:engine/model/operation/operation~Operation operation} instances.\n *\n * @param transformationFunction Function to use for transforming.\n */\nfunction setTransformation<\n\tClassA extends new ( ...args: Array<any> ) => Operation,\n\tClassB extends new ( ...args: Array<any> ) => Operation\n>(\n\tOperationA: ClassA,\n\tOperationB: ClassB,\n\ttransformationFunction: ( a: InstanceType<ClassA>, b: InstanceType<ClassB>, context: TransformationContext ) => Array<Operation>\n) {\n\tlet aGroup = transformations.get( OperationA );\n\n\tif ( !aGroup ) {\n\t\taGroup = new Map();\n\t\ttransformations.set( OperationA, aGroup );\n\t}\n\n\taGroup.set( OperationB, transformationFunction as TransformationFunction );\n}\n\n/**\n * Returns a previously set transformation function for transforming an instance of `OperationA` by an instance of `OperationB`.\n *\n * If no transformation was set for given pair of operations, {@link module:engine/model/operation/transform~noUpdateTransformation}\n * is returned. This means that if no transformation was set, the `OperationA` instance will not change when transformed\n * by the `OperationB` instance.\n *\n * @returns Function set to transform an instance of `OperationA` by an instance of `OperationB`.\n */\nfunction getTransformation( OperationA: Function, OperationB: Function ): TransformationFunction {\n\tconst aGroup = transformations.get( OperationA );\n\n\tif ( aGroup && aGroup.has( OperationB ) ) {\n\t\treturn aGroup.get( OperationB )!;\n\t}\n\n\treturn noUpdateTransformation;\n}\n\n/**\n * A transformation function that only clones operation to transform, without changing it.\n */\nfunction noUpdateTransformation( a: Operation ): Array<Operation> {\n\treturn [ a ];\n}\n\n/**\n * Transforms operation `a` by operation `b`.\n *\n * @param a Operation to be transformed.\n * @param b Operation to transform by.\n * @param context Transformation context for this transformation.\n * @returns Transformation result.\n */\nexport function transform( a: Operation, b: Operation, context: TransformationContext = {} ): Array<Operation> {\n\tconst transformationFunction = getTransformation( a.constructor, b.constructor );\n\n\t/* eslint-disable no-useless-catch */\n\ttry {\n\t\ta = a.clone();\n\n\t\treturn transformationFunction( a, b, context );\n\t} catch ( e: any ) {\n\t\t// @if CK_DEBUG // console.warn( 'Error during operation transformation!', e.message );\n\t\t// @if CK_DEBUG // console.warn( 'Transformed operation', a );\n\t\t// @if CK_DEBUG // console.warn( 'Operation transformed by', b );\n\t\t// @if CK_DEBUG // console.warn( 'context.aIsStrong', context.aIsStrong );\n\t\t// @if CK_DEBUG // console.warn( 'context.aWasUndone', context.aWasUndone );\n\t\t// @if CK_DEBUG // console.warn( 'context.bWasUndone', context.bWasUndone );\n\t\t// @if CK_DEBUG // console.warn( 'context.abRelation', context.abRelation );\n\t\t// @if CK_DEBUG // console.warn( 'context.baRelation', context.baRelation );\n\n\t\tthrow e;\n\t}\n\t/* eslint-enable no-useless-catch */\n}\n\n/**\n * Performs a transformation of two sets of operations - `operationsA` and `operationsB`. The transformation is two-way -\n * both transformed `operationsA` and transformed `operationsB` are returned.\n *\n * Note, that the first operation in each set should base on the same document state (\n * {@link module:engine/model/document~Document#version document version}).\n *\n * It is assumed that `operationsA` are \"more important\" during conflict resolution between two operations.\n *\n * New copies of both passed arrays and operations inside them are returned. Passed arguments are not altered.\n *\n * Base versions of the transformed operations sets are updated accordingly. For example, assume that base versions are `4`\n * and there are `3` operations in `operationsA` and `5` operations in `operationsB`. Then:\n *\n * * transformed `operationsA` will start from base version `9` (`4` base version + `5` operations B),\n * * transformed `operationsB` will start from base version `7` (`4` base version + `3` operations A).\n *\n * If no operation was broken into two during transformation, then both sets will end up with an operation that bases on version `11`:\n *\n * * transformed `operationsA` start from `9` and there are `3` of them, so the last will have `baseVersion` equal to `11`,\n * * transformed `operationsB` start from `7` and there are `5` of them, so the last will have `baseVersion` equal to `11`.\n *\n * @param operationsA\n * @param operationsB\n * @param options Additional transformation options.\n * @param options.document Document which the operations change.\n * @param options.useRelations Whether during transformation relations should be used (used during undo for better conflict resolution).\n * @param options.padWithNoOps Whether additional {@link module:engine/model/operation/nooperation~NoOperation}s\n * should be added to the transformation results to force the same last base version for both transformed sets (in case\n * if some operations got broken into multiple operations during transformation).\n * @param options.forceWeakRemove If set to `false`, remove operation will be always stronger than move operation,\n * so the removed nodes won't end up back in the document root. When set to `true`, context data will be used.\n * @returns Transformation result.\n */\nexport function transformSets(\n\toperationsA: Array<Operation>,\n\toperationsB: Array<Operation>,\n\toptions: {\n\t\tdocument: Document;\n\t\tuseRelations?: boolean;\n\t\tpadWithNoOps?: boolean;\n\t\tforceWeakRemove?: boolean;\n\t}\n): TransformSetsResult {\n\t// Create new arrays so the originally passed arguments are not changed.\n\t// No need to clone operations, they are cloned as they are transformed.\n\toperationsA = operationsA.slice();\n\toperationsB = operationsB.slice();\n\n\tconst contextFactory = new ContextFactory( options.document, options.useRelations, options.forceWeakRemove );\n\tcontextFactory.setOriginalOperations( operationsA );\n\tcontextFactory.setOriginalOperations( operationsB );\n\n\tconst originalOperations = contextFactory.originalOperations;\n\n\t// If one of sets is empty there is simply nothing to transform, so return sets as they are.\n\tif ( operationsA.length == 0 || operationsB.length == 0 ) {\n\t\treturn { operationsA, operationsB, originalOperations };\n\t}\n\t//\n\t// Following is a description of transformation process:\n\t//\n\t// There are `operationsA` and `operationsB` to be transformed, both by both.\n\t//\n\t// So, suppose we have sets of two operations each: `operationsA` = `[ a1, a2 ]`, `operationsB` = `[ b1, b2 ]`.\n\t//\n\t// Remember, that we can only transform operations that base on the same context. We assert that `a1` and `b1` base on\n\t// the same context and we transform them. Then, we get `a1'` and `b1'`. `a2` bases on a context with `a1` -- `a2`\n\t// is an operation that followed `a1`. Similarly, `b2` bases on a context with `b1`.\n\t//\n\t// However, since `a1'` is a result of transformation by `b1`, `a1'` now also has a context with `b1`. This means that\n\t// we can safely transform `a1'` by `b2`. As we finish transforming `a1`, we also transformed all `operationsB`.\n\t// All `operationsB` also have context including `a1`. Now, we can properly transform `a2` by those operations.\n\t//\n\t// The transformation process can be visualized on a transformation diagram (\"diamond diagram\"):\n\t//\n\t//          [the initial state]\n\t//         [common for a1 and b1]\n\t//\n\t//                   *\n\t//                  / \\\n\t//                 /   \\\n\t//               b1     a1\n\t//               /       \\\n\t//              /         \\\n\t//             *           *\n\t//            / \\         / \\\n\t//           /   \\       /   \\\n\t//         b2    a1'   b1'    a2\n\t//         /       \\   /       \\\n\t//        /         \\ /         \\\n\t//       *           *           *\n\t//        \\         / \\         /\n\t//         \\       /   \\       /\n\t//        a1''   b2'   a2'   b1''\n\t//           \\   /       \\   /\n\t//            \\ /         \\ /\n\t//             *           *\n\t//              \\         /\n\t//               \\       /\n\t//              a2''   b2''\n\t//                 \\   /\n\t//                  \\ /\n\t//                   *\n\t//\n\t//           [the final state]\n\t//\n\t// The final state can be reached from the initial state by applying `a1`, `a2`, `b1''` and `b2''`, as well as by\n\t// applying `b1`, `b2`, `a1''`, `a2''`. Note how the operations get to a proper common state before each pair is\n\t// transformed.\n\t//\n\t// Another thing to consider is that an operation during transformation can be broken into multiple operations.\n\t// Suppose that `a1` * `b1` = `[ a11', a12' ]` (instead of `a1'` that we considered previously).\n\t//\n\t// In that case, we leave `a12'` for later and we continue transforming `a11'` until it is transformed by all `operationsB`\n\t// (in our case it is just `b2`). At this point, `b1` is transformed by \"whole\" `a1`, while `b2` is only transformed\n\t// by `a11'`. Similarly, `a12'` is only transformed by `b1`. This leads to a conclusion that we need to start transforming `a12'`\n\t// from the moment just after it was broken. So, `a12'` is transformed by `b2`. Now, \"the whole\" `a1` is transformed\n\t// by `operationsB`, while all `operationsB` are transformed by \"the whole\" `a1`. This means that we can continue with\n\t// following `operationsA` (in our case it is just `a2`).\n\t//\n\t// Of course, also `operationsB` can be broken. However, since we focus on transforming operation `a` to the end,\n\t// the only thing to do is to store both pieces of operation `b`, so that the next transformed operation `a` will\n\t// be transformed by both of them.\n\t//\n\t//                       *\n\t//                      / \\\n\t//                     /   \\\n\t//                    /     \\\n\t//                  b1       a1\n\t//                  /         \\\n\t//                 /           \\\n\t//                /             \\\n\t//               *               *\n\t//              / \\             / \\\n\t//             /  a11'         /   \\\n\t//            /     \\         /     \\\n\t//          b2       *      b1'      a2\n\t//          /       / \\     /         \\\n\t//         /       /  a12' /           \\\n\t//        /       /     \\ /             \\\n\t//       *       b2'     *               *\n\t//        \\     /       / \\             /\n\t//       a11'' /     b21'' \\           /\n\t//          \\ /       /     \\         /\n\t//           *       *      a2'     b1''\n\t//            \\     / \\       \\     /\n\t//          a12'' b22''\\       \\   /\n\t//              \\ /     \\       \\ /\n\t//               *      a2''     *\n\t//                \\       \\     /\n\t//                 \\       \\  b21'''\n\t//                  \\       \\ /\n\t//                a2'''      *\n\t//                    \\     /\n\t//                     \\  b22'''\n\t//                      \\ /\n\t//                       *\n\t//\n\t// Note, how `a1` is broken and transformed into `a11'` and `a12'`, while `b2'` got broken and transformed into `b21''` and `b22''`.\n\t//\n\t// Having all that on mind, here is an outline for the transformation process algorithm:\n\t//\n\t// 1. We have `operationsA` and `operationsB` array, which we dynamically update as the transformation process goes.\n\t//\n\t// 2. We take next (or first) operation from `operationsA` and check from which operation `b` we need to start transforming it.\n\t// All original `operationsA` are set to be transformed starting from the first operation `b`.\n\t//\n\t// 3. We take operations from `operationsB`, one by one, starting from the correct one, and transform operation `a`\n\t// by operation `b` (and vice versa). We update `operationsA` and `operationsB` by replacing the original operations\n\t// with the transformation results.\n\t//\n\t// 4. If operation is broken into multiple operations, we save all the new operations in the place of the\n\t// original operation.\n\t//\n\t// 5. Additionally, if operation `a` was broken, for the \"new\" operation, we remember from which operation `b` it should\n\t// be transformed by.\n\t//\n\t// 6. We continue transforming \"current\" operation `a` until it is transformed by all `operationsB`. Then, go to 2.\n\t// unless the last operation `a` was transformed.\n\t//\n\t// The actual implementation of the above algorithm is slightly different, as only one loop (while) is used.\n\t// The difference is that we have \"current\" `a` operation to transform and we store the index of the next `b` operation\n\t// to transform by. Each loop operates on two indexes then: index pointing to currently processed `a` operation and\n\t// index pointing to next `b` operation. Each loop is just one `a * b` + `b * a` transformation. After each loop\n\t// operation `b` index is updated. If all `b` operations were visited for the current `a` operation, we change\n\t// current `a` operation index to the next one.\n\t//\n\n\t// For each operation `a`, keeps information what is the index in `operationsB` from which the transformation should start.\n\tconst nextTransformIndex = new WeakMap<Operation, number>();\n\n\t// For all the original `operationsA`, set that they should be transformed starting from the first of `operationsB`.\n\tfor ( const op of operationsA ) {\n\t\tnextTransformIndex.set( op, 0 );\n\t}\n\n\t// Additional data that is used for some postprocessing after the main transformation process is done.\n\tconst data = {\n\t\tnextBaseVersionA: operationsA[ operationsA.length - 1 ].baseVersion! + 1,\n\t\tnextBaseVersionB: operationsB[ operationsB.length - 1 ].baseVersion! + 1,\n\t\toriginalOperationsACount: operationsA.length,\n\t\toriginalOperationsBCount: operationsB.length\n\t};\n\n\t// Index of currently transformed operation `a`.\n\tlet i = 0;\n\n\t// While not all `operationsA` are transformed...\n\twhile ( i < operationsA.length ) {\n\t\t// Get \"current\" operation `a`.\n\t\tconst opA = operationsA[ i ];\n\n\t\t// For the \"current\" operation `a`, get the index of the next operation `b` to transform by.\n\t\tconst indexB = nextTransformIndex.get( opA )!;\n\n\t\t// If operation `a` was already transformed by every operation `b`, change \"current\" operation `a` to the next one.\n\t\tif ( indexB == operationsB.length ) {\n\t\t\ti++;\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst opB = operationsB[ indexB ];\n\n\t\t// Transform `a` by `b` and `b` by `a`.\n\t\tconst newOpsA = transform( opA, opB, contextFactory.getContext( opA, opB, true ) );\n\t\tconst newOpsB = transform( opB, opA, contextFactory.getContext( opB, opA, false ) );\n\t\t// As a result we get one or more `newOpsA` and one or more `newOpsB` operations.\n\n\t\t// Update contextual information about operations.\n\t\tcontextFactory.updateRelation( opA, opB );\n\n\t\tcontextFactory.setOriginalOperations( newOpsA, opA );\n\t\tcontextFactory.setOriginalOperations( newOpsB, opB );\n\n\t\t// For new `a` operations, update their index of the next operation `b` to transform them by.\n\t\t//\n\t\t// This is needed even if there was only one result (`a` was not broken) because that information is used\n\t\t// at the beginning of this loop every time.\n\t\tfor ( const newOpA of newOpsA ) {\n\t\t\t// Acknowledge, that operation `b` also might be broken into multiple operations.\n\t\t\t//\n\t\t\t// This is why we raise `indexB` not just by 1. If `newOpsB` are multiple operations, they will be\n\t\t\t// spliced in the place of `opB`. So we need to change `transformBy` accordingly, so that an operation won't\n\t\t\t// be transformed by the same operation (part of it) again.\n\t\t\tnextTransformIndex.set( newOpA, indexB + newOpsB.length );\n\t\t}\n\n\t\t// Update `operationsA` and `operationsB` with the transformed versions.\n\t\toperationsA.splice( i, 1, ...newOpsA );\n\t\toperationsB.splice( indexB, 1, ...newOpsB );\n\t}\n\n\tif ( options.padWithNoOps ) {\n\t\t// If no-operations padding is enabled, count how many extra `a` and `b` operations were generated.\n\t\tconst brokenOperationsACount = operationsA.length - data.originalOperationsACount;\n\t\tconst brokenOperationsBCount = operationsB.length - data.originalOperationsBCount;\n\n\t\t// Then, if that number is not the same, pad `operationsA` or `operationsB` with correct number of no-ops so\n\t\t// that the base versions are equalled.\n\t\t//\n\t\t// Note that only one array will be updated, as only one of those subtractions can be greater than zero.\n\t\tpadWithNoOps( operationsA, brokenOperationsBCount - brokenOperationsACount );\n\t\tpadWithNoOps( operationsB, brokenOperationsACount - brokenOperationsBCount );\n\t}\n\n\t// Finally, update base versions of transformed operations.\n\tupdateBaseVersions( operationsA, data.nextBaseVersionB );\n\tupdateBaseVersions( operationsB, data.nextBaseVersionA );\n\n\treturn { operationsA, operationsB, originalOperations };\n}\n\n/**\n * The result of {@link module:engine/model/operation/transform~transformSets}.\n */\nexport interface TransformSetsResult {\n\n\t/**\n\t * Transformed `operationsA`.\n\t */\n\toperationsA: Array<Operation>;\n\n\t/**\n\t * Transformed `operationsB`.\n\t */\n\toperationsB: Array<Operation>;\n\n\t/**\n\t * A map that links transformed operations to original operations. The keys are the transformed\n\t * operations and the values are the original operations from the input (`operationsA` and `operationsB`).\n\t */\n\toriginalOperations: Map<Operation, Operation>;\n}\n\n/**\n * Gathers additional data about operations processed during transformation. Can be used to obtain contextual information\n * about two operations that are about to be transformed. This contextual information can be used for better conflict resolution.\n */\nclass ContextFactory {\n\tpublic readonly originalOperations: Map<Operation, Operation>;\n\n\tprivate readonly _history: History;\n\tprivate readonly _useRelations?: boolean;\n\tprivate readonly _forceWeakRemove: boolean;\n\tprivate readonly _relations: Map<Operation, Map<Operation, any>>;\n\n\t/**\n\t * Creates `ContextFactory` instance.\n\t *\n\t * @param document Document which the operations change.\n\t * @param useRelations Whether during transformation relations should be used (used during undo for\n\t * better conflict resolution).\n\t * @param forceWeakRemove If set to `false`, remove operation will be always stronger than move operation,\n\t * so the removed nodes won't end up back in the document root. When set to `true`, context data will be used.\n\t */\n\tconstructor( document: Document, useRelations: boolean | undefined, forceWeakRemove = false ) {\n\t\t// For each operation that is created during transformation process, we keep a reference to the original operation\n\t\t// which it comes from. The original operation works as a kind of \"identifier\". Every contextual information\n\t\t// gathered during transformation that we want to save for given operation, is actually saved for the original operation.\n\t\t// This way no matter if operation `a` is cloned, then transformed, even breaks, we still have access to the previously\n\t\t// gathered data through original operation reference.\n\t\tthis.originalOperations = new Map();\n\n\t\t// `model.History` instance which information about undone operations will be taken from.\n\t\tthis._history = document.history;\n\n\t\t// Whether additional context should be used.\n\t\tthis._useRelations = useRelations;\n\n\t\tthis._forceWeakRemove = !!forceWeakRemove;\n\n\t\t// Relations is a double-map structure (maps in map) where for two operations we store how those operations were related\n\t\t// to each other. Those relations are evaluated during transformation process. For every transformated pair of operations\n\t\t// we keep relations between them.\n\t\tthis._relations = new Map();\n\t}\n\n\t/**\n\t * Sets \"original operation\" for given operations.\n\t *\n\t * During transformation process, operations are cloned, then changed, then processed again, sometimes broken into two\n\t * or multiple operations. When gathering additional data it is important that all operations can be somehow linked\n\t * so a cloned and transformed \"version\" still kept track of the data assigned earlier to it.\n\t *\n\t * The original operation object will be used as such an universal linking id. Throughout the transformation process\n\t * all cloned operations will refer to \"the original operation\" when storing and reading additional data.\n\t *\n\t * If `takeFrom` is not set, each operation from `operations` array will be assigned itself as \"the original operation\".\n\t * This should be used as an initialization step.\n\t *\n\t * If `takeFrom` is set, each operation from `operations` will be assigned the same original operation as assigned\n\t * for `takeFrom` operation. This should be used to update original operations. It should be used in a way that\n\t * `operations` are the result of `takeFrom` transformation to ensure proper \"original operation propagation\".\n\t */\n\tpublic setOriginalOperations( operations: Array<Operation>, takeFrom: Operation | null = null ): void {\n\t\tconst originalOperation = takeFrom ? this.originalOperations.get( takeFrom ) : null;\n\n\t\tfor ( const operation of operations ) {\n\t\t\tthis.originalOperations.set( operation, originalOperation || operation );\n\t\t}\n\t}\n\n\t/**\n\t * Saves a relation between operations `opA` and `opB`.\n\t *\n\t * Relations are then later used to help solve conflicts when operations are transformed.\n\t */\n\tpublic updateRelation( opA: Operation, opB: Operation ): void {\n\t\t// The use of relations is described in a bigger detail in transformation functions.\n\t\t//\n\t\t// In brief, this function, for specified pairs of operation types, checks how positions defined in those operations relate.\n\t\t// Then those relations are saved. For example, for two move operations, it is saved if one of those operations target\n\t\t// position is before the other operation source position. This kind of information gives contextual information when\n\t\t// transformation is used during undo. Similar checks are done for other pairs of operations.\n\t\t//\n\t\tif ( opA instanceof MoveOperation ) {\n\t\t\tif ( opB instanceof MergeOperation ) {\n\t\t\t\tif ( opA.targetPosition.isEqual( opB.sourcePosition ) || opB.movedRange.containsPosition( opA.targetPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertAtSource' );\n\t\t\t\t} else if ( opA.targetPosition.isEqual( opB.deletionPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertBetween' );\n\t\t\t\t} else if ( opA.targetPosition.isAfter( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'moveTargetAfter' );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof MoveOperation ) {\n\t\t\t\tif ( opA.targetPosition.isEqual( opB.sourcePosition ) || opA.targetPosition.isBefore( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertBefore' );\n\t\t\t\t} else {\n\t\t\t\t\tthis._setRelation( opA, opB, 'insertAfter' );\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( opA instanceof SplitOperation ) {\n\t\t\tif ( opB instanceof MergeOperation ) {\n\t\t\t\tif ( opA.splitPosition.isBefore( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'splitBefore' );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof MoveOperation ) {\n\t\t\t\tif ( opA.splitPosition.isEqual( opB.sourcePosition ) || opA.splitPosition.isBefore( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'splitBefore' );\n\t\t\t\t} else {\n\t\t\t\t\tconst range = Range._createFromPositionAndShift( opB.sourcePosition, opB.howMany );\n\n\t\t\t\t\tif ( opA.splitPosition.hasSameParentAs( opB.sourcePosition ) && range.containsPosition( opA.splitPosition ) ) {\n\t\t\t\t\t\tconst howMany = range.end.offset - opA.splitPosition.offset;\n\t\t\t\t\t\tconst offset = opA.splitPosition.offset - range.start.offset;\n\n\t\t\t\t\t\tthis._setRelation( opA, opB, { howMany, offset } );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( opA instanceof MergeOperation ) {\n\t\t\tif ( opB instanceof MergeOperation ) {\n\t\t\t\tif ( !opA.targetPosition.isEqual( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'mergeTargetNotMoved' );\n\t\t\t\t}\n\n\t\t\t\tif ( opA.sourcePosition.isEqual( opB.targetPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'mergeSourceNotMoved' );\n\t\t\t\t}\n\n\t\t\t\tif ( opA.sourcePosition.isEqual( opB.sourcePosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'mergeSameElement' );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof SplitOperation ) {\n\t\t\t\tif ( opA.sourcePosition.isEqual( opB.splitPosition ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, 'splitAtSource' );\n\t\t\t\t}\n\t\t\t}\n\t\t} else if ( opA instanceof MarkerOperation ) {\n\t\t\tconst markerRange = opA.newRange;\n\n\t\t\tif ( !markerRange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( opB instanceof MoveOperation ) {\n\t\t\t\tconst movedRange = Range._createFromPositionAndShift( opB.sourcePosition, opB.howMany );\n\n\t\t\t\tconst affectedLeft = movedRange.containsPosition( markerRange.start ) ||\n\t\t\t\t\tmovedRange.start.isEqual( markerRange.start );\n\n\t\t\t\tconst affectedRight = movedRange.containsPosition( markerRange.end ) ||\n\t\t\t\t\tmovedRange.end.isEqual( markerRange.end );\n\n\t\t\t\tif ( ( affectedLeft || affectedRight ) && !movedRange.containsRange( markerRange ) ) {\n\t\t\t\t\tthis._setRelation( opA, opB, {\n\t\t\t\t\t\tside: affectedLeft ? 'left' : 'right',\n\t\t\t\t\t\tpath: affectedLeft ? markerRange.start.path.slice() : markerRange.end.path.slice()\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} else if ( opB instanceof MergeOperation ) {\n\t\t\t\tconst wasInLeftElement = markerRange.start.isEqual( opB.targetPosition );\n\t\t\t\tconst wasStartBeforeMergedElement = markerRange.start.isEqual( opB.deletionPosition );\n\t\t\t\tconst wasEndBeforeMergedElement = markerRange.end.isEqual( opB.deletionPosition );\n\t\t\t\tconst wasInRightElement = markerRange.end.isEqual( opB.sourcePosition );\n\n\t\t\t\tif ( wasInLeftElement || wasStartBeforeMergedElement || wasEndBeforeMergedElement || wasInRightElement ) {\n\t\t\t\t\tthis._setRelation( opA, opB, {\n\t\t\t\t\t\twasInLeftElement,\n\t\t\t\t\t\twasStartBeforeMergedElement,\n\t\t\t\t\t\twasEndBeforeMergedElement,\n\t\t\t\t\t\twasInRightElement\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Evaluates and returns contextual information about two given operations `opA` and `opB` which are about to be transformed.\n\t */\n\tpublic getContext( opA: Operation, opB: Operation, aIsStrong: boolean ): TransformationContext {\n\t\treturn {\n\t\t\taIsStrong,\n\t\t\taWasUndone: this._wasUndone( opA ),\n\t\t\tbWasUndone: this._wasUndone( opB ),\n\t\t\tabRelation: this._useRelations ? this._getRelation( opA, opB ) : null,\n\t\t\tbaRelation: this._useRelations ? this._getRelation( opB, opA ) : null,\n\t\t\tforceWeakRemove: this._forceWeakRemove\n\t\t};\n\t}\n\n\t/**\n\t * Returns whether given operation `op` has already been undone.\n\t *\n\t * Information whether an operation was undone gives more context when making a decision when two operations are in conflict.\n\t */\n\tpublic _wasUndone( op: Operation ): boolean {\n\t\t// For `op`, get its original operation. After all, if `op` is a clone (or even transformed clone) of another\n\t\t// operation, literally `op` couldn't be undone. It was just generated. If anything, it was the operation it origins\n\t\t// from which was undone. So get that original operation.\n\t\tconst originalOp = this.originalOperations.get( op )!;\n\n\t\t// And check with the document if the original operation was undone.\n\t\treturn ( originalOp as any ).wasUndone || this._history.isUndoneOperation( originalOp );\n\t}\n\n\t/**\n\t * Returns a relation between `opA` and an operation which is undone by `opB`. This can be `String` value if a relation\n\t * was set earlier or `null` if there was no relation between those operations.\n\t *\n\t * This is a little tricky to understand, so let's compare it to `ContextFactory#_wasUndone`.\n\t *\n\t * When `wasUndone( opB )` is used, we check if the `opB` has already been undone. It is obvious, that the\n\t * undoing operation must happen after the undone operation. So, essentially, we have `opB`, we take document history,\n\t * we look forward in the future and ask if in that future `opB` was undone.\n\t *\n\t * Relations is a backward process to `wasUndone()`.\n\t *\n\t * Long story short - using relations is asking what happened in the past. Looking back. This time we have an undoing\n\t * operation `opB` which has undone some other operation. When there is a transformation `opA` x `opB` and there is\n\t * a conflict to solve and `opB` is an undoing operation, we can look back in the history and see what was a relation\n\t * between `opA` and the operation which `opB` undone. Basing on that relation from the past, we can now make\n\t * a better decision when resolving a conflict between two operations, because we know more about the context of\n\t * those two operations.\n\t *\n\t * This is why this function does not return a relation directly between `opA` and `opB` because we need to look\n\t * back to search for a meaningful contextual information.\n\t */\n\tpublic _getRelation( opA: Operation, opB: Operation ): any {\n\t\t// Get the original operation. Similarly as in `wasUndone()` it is used as an universal identifier for stored data.\n\t\tconst origB = this.originalOperations.get( opB )!;\n\t\tconst undoneB = this._history.getUndoneOperation( origB );\n\n\t\t// If `opB` is not undoing any operation, there is no relation.\n\t\tif ( !undoneB ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst origA = this.originalOperations.get( opA )!;\n\t\tconst relationsA = this._relations.get( origA );\n\n\t\t// Get all relations for `opA`, and check if there is a relation with `opB`-undone-counterpart. If so, return it.\n\t\tif ( relationsA ) {\n\t\t\treturn relationsA.get( undoneB ) || null;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Helper function for `ContextFactory#updateRelations`.\n\t */\n\tprivate _setRelation( opA: Operation, opB: Operation, relation: any ): void {\n\t\t// As always, setting is for original operations, not the clones/transformed operations.\n\t\tconst origA = this.originalOperations.get( opA )!;\n\t\tconst origB = this.originalOperations.get( opB )!;\n\n\t\tlet relationsA = this._relations.get( origA );\n\n\t\tif ( !relationsA ) {\n\t\t\trelationsA = new Map();\n\t\t\tthis._relations.set( origA, relationsA );\n\t\t}\n\n\t\trelationsA.set( origB, relation );\n\t}\n}\n\n/**\n * Holds additional contextual information about a transformed pair of operations (`a` and `b`). Those information\n * can be used for better conflict resolving.\n */\n\nexport type TransformationContext = {\n\n\t/**\n\t * Whether `a` is strong operation in this transformation, or weak.\n\t */\n\taIsStrong?: boolean;\n\n\t/**\n\t * Whether `a` operation was undone.\n\t */\n\taWasUndone?: boolean;\n\n\t/**\n\t * Whether `b` operation was undone.\n\t */\n\tbWasUndone?: boolean;\n\n\t/**\n\t * The relation between `a` operation and an operation undone by `b` operation.\n\t */\n\tabRelation?: any;\n\n\t/**\n\t * The relation between `b` operation and an operation undone by `a` operation.\n\t */\n\tbaRelation?: any;\n\n\tforceWeakRemove?: boolean;\n};\n\n/**\n * An utility function that updates {@link module:engine/model/operation/operation~Operation#baseVersion base versions}\n * of passed operations.\n *\n * The function simply sets `baseVersion` as a base version of the first passed operation and then increments it for\n * each following operation in `operations`.\n *\n * @param operations Operations to update.\n * @param baseVersion Base version to set for the first operation in `operations`.\n */\nfunction updateBaseVersions( operations: ReadonlyArray<Operation>, baseVersion: number ) {\n\tfor ( const operation of operations ) {\n\t\toperation.baseVersion = baseVersion++;\n\t}\n}\n\n/**\n * Adds `howMany` instances of {@link module:engine/model/operation/nooperation~NoOperation} to `operations` set.\n */\nfunction padWithNoOps( operations: Array<Operation>, howMany: number ) {\n\tfor ( let i = 0; i < howMany; i++ ) {\n\t\toperations.push( new NoOperation( 0 ) );\n\t}\n}\n\n// -----------------------\n\nsetTransformation( AttributeOperation, AttributeOperation, ( a, b, context ) => {\n\t// If operations in conflict, check if their ranges intersect and manage them properly.\n\t//\n\t// Operations can be in conflict only if:\n\t//\n\t// * their key is the same (they change the same attribute), and\n\t// * they are in the same parent (operations for ranges [ 1 ] - [ 3 ] and [ 2, 0 ] - [ 2, 5 ] change different\n\t// elements and can't be in conflict).\n\tif ( a.key === b.key && a.range.start.hasSameParentAs( b.range.start ) ) {\n\t\t// First, we want to apply change to the part of a range that has not been changed by the other operation.\n\t\tconst operations = a.range.getDifference( b.range ).map( range => {\n\t\t\treturn new AttributeOperation( range, a.key, a.oldValue, a.newValue, 0 );\n\t\t} );\n\n\t\t// Then we take care of the common part of ranges.\n\t\tconst common = a.range.getIntersection( b.range );\n\n\t\tif ( common ) {\n\t\t\t// If this operation is more important, we also want to apply change to the part of the\n\t\t\t// original range that has already been changed by the other operation. Since that range\n\t\t\t// got changed we also have to update `oldValue`.\n\t\t\tif ( context.aIsStrong ) {\n\t\t\t\toperations.push( new AttributeOperation( common, b.key, b.newValue, a.newValue, 0 ) );\n\t\t\t}\n\t\t}\n\n\t\tif ( operations.length == 0 ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\n\t\treturn operations;\n\t} else {\n\t\t// If operations don't conflict, simply return an array containing just a clone of this operation.\n\t\treturn [ a ];\n\t}\n} );\n\nsetTransformation( AttributeOperation, InsertOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// The attribute operation range includes the position where nodes were inserted.\n\t// There are two possible scenarios: the inserted nodes were text and they should receive attributes or\n\t// the inserted nodes were elements and they should not receive attributes.\n\t//\n\tif ( a.range.start.hasSameParentAs( b.position ) && a.range.containsPosition( b.position ) ) {\n\t\t// If new nodes should not receive attributes, two separated ranges will be returned.\n\t\t// Otherwise, one expanded range will be returned.\n\t\tconst range = a.range._getTransformedByInsertion( b.position, b.howMany, !b.shouldReceiveAttributes );\n\t\tconst result = range.map( r => {\n\t\t\treturn new AttributeOperation( r, a.key, a.oldValue, a.newValue, a.baseVersion );\n\t\t} );\n\n\t\tif ( b.shouldReceiveAttributes ) {\n\t\t\t// `AttributeOperation#range` includes some newly inserted text.\n\t\t\t// The operation should also change the attribute of that text. An example:\n\t\t\t//\n\t\t\t// Bold should be applied on the following range:\n\t\t\t// <p>Fo[zb]ar</p>\n\t\t\t//\n\t\t\t// In meantime, new text is typed:\n\t\t\t// <p>Fozxxbar</p>\n\t\t\t//\n\t\t\t// Bold should be applied also on the new text:\n\t\t\t// <p>Fo[zxxb]ar</p>\n\t\t\t// <p>Fo<$text bold=\"true\">zxxb</$text>ar</p>\n\t\t\t//\n\t\t\t// There is a special case to consider here to consider.\n\t\t\t//\n\t\t\t// Consider setting an attribute with multiple possible values, for example `highlight`. The inserted text might\n\t\t\t// have already an attribute value applied and the `oldValue` property of the attribute operation might be wrong:\n\t\t\t//\n\t\t\t// Attribute `highlight=\"yellow\"` should be applied on the following range:\n\t\t\t// <p>Fo[zb]ar<p>\n\t\t\t//\n\t\t\t// In meantime, character `x` with `highlight=\"red\"` is typed:\n\t\t\t// <p>Fo[z<$text highlight=\"red\">x</$text>b]ar</p>\n\t\t\t//\n\t\t\t// In this case we cannot simply apply operation changing the attribute value from `null` to `\"yellow\"` for the whole range\n\t\t\t// because that would lead to an exception (`oldValue` is incorrect for `x`).\n\t\t\t//\n\t\t\t// We also cannot break the original range as this would mess up a scenario when there are multiple following\n\t\t\t// insert operations, because then only the first inserted character is included in those ranges:\n\t\t\t// <p>Fo[z][x][b]ar</p>   -->   <p>Fo[z][x]x[b]ar</p>   -->   <p>Fo[z][x]xx[b]ar</p>\n\t\t\t//\n\t\t\t// So, the attribute range needs be expanded, no matter what attributes are set on the inserted nodes:\n\t\t\t//\n\t\t\t// <p>Fo[z<$text highlight=\"red\">x</$text>b]ar</p>      <--- Change from `null` to `yellow`, throwing an exception.\n\t\t\t//\n\t\t\t// But before that operation would be applied, we will add an additional attribute operation that will change\n\t\t\t// attributes on the inserted nodes in a way which would make the original operation correct:\n\t\t\t//\n\t\t\t// <p>Fo[z{<$text highlight=\"red\">}x</$text>b]ar</p>    <--- Change range `{}` from `red` to `null`.\n\t\t\t// <p>Fo[zxb]ar</p>                                     <--- Now change from `null` to `yellow` is completely fine.\n\t\t\t//\n\n\t\t\t// Generate complementary attribute operation. Be sure to add it before the original operation.\n\t\t\tconst op = _getComplementaryAttributeOperations( b, a.key, a.oldValue );\n\n\t\t\tif ( op ) {\n\t\t\t\tresult.unshift( op );\n\t\t\t}\n\t\t}\n\n\t\t// If nodes should not receive new attribute, we are done here.\n\t\treturn result;\n\t}\n\n\t// If insert operation is not expanding the attribute operation range, simply transform the range.\n\ta.range = a.range._getTransformedByInsertion( b.position, b.howMany, false )[ 0 ];\n\n\treturn [ a ];\n} );\n\n/**\n * Helper function for `AttributeOperation` x `InsertOperation` (and reverse) transformation.\n *\n * For given `insertOperation` it checks the inserted node if it has an attribute `key` set to a value different\n * than `newValue`. If so, it generates an `AttributeOperation` which changes the value of `key` attribute to `newValue`.\n */\nfunction _getComplementaryAttributeOperations( insertOperation: InsertOperation, key: string, newValue: unknown ) {\n\tconst nodes = insertOperation.nodes;\n\n\t// At the beginning we store the attribute value from the first node.\n\tconst insertValue = nodes.getNode( 0 )!.getAttribute( key );\n\n\tif ( insertValue == newValue ) {\n\t\treturn null;\n\t}\n\n\tconst range = new Range( insertOperation.position, insertOperation.position.getShiftedBy( insertOperation.howMany ) );\n\n\treturn new AttributeOperation( range, key, insertValue, newValue, 0 );\n}\n\nsetTransformation( AttributeOperation, MergeOperation, ( a, b ) => {\n\tconst ranges = [];\n\n\t// Case 1:\n\t//\n\t// Attribute change on the merged element. In this case, the merged element was moved to the graveyard.\n\t// An additional attribute operation that will change the (re)moved element needs to be generated.\n\t//\n\tif ( a.range.start.hasSameParentAs( b.deletionPosition ) ) {\n\t\tif ( a.range.containsPosition( b.deletionPosition ) || a.range.start.isEqual( b.deletionPosition ) ) {\n\t\t\tranges.push( Range._createFromPositionAndShift( b.graveyardPosition, 1 ) );\n\t\t}\n\t}\n\n\tconst range = a.range._getTransformedByMergeOperation( b );\n\n\t// Do not add empty (collapsed) ranges to the result. `range` may be collapsed if it contained only the merged element.\n\tif ( !range.isCollapsed ) {\n\t\tranges.push( range );\n\t}\n\n\t// Create `AttributeOperation`s out of the ranges.\n\treturn ranges.map( range => {\n\t\treturn new AttributeOperation( range, a.key, a.oldValue, a.newValue, a.baseVersion );\n\t} );\n} );\n\nsetTransformation( AttributeOperation, MoveOperation, ( a, b ) => {\n\tconst ranges = _breakRangeByMoveOperation( a.range, b );\n\n\t// Create `AttributeOperation`s out of the ranges.\n\treturn ranges.map( range => new AttributeOperation( range, a.key, a.oldValue, a.newValue, a.baseVersion ) );\n} );\n\n/**\n * Helper function for `AttributeOperation` x `MoveOperation` transformation.\n *\n * Takes the passed `range` and transforms it by move operation `moveOp` in a specific way. Only top-level nodes of `range`\n * are considered to be in the range. If move operation moves nodes deep from inside of the range, those nodes won't\n * be included in the result. In other words, top-level nodes of the ranges from the result are exactly the same as\n * top-level nodes of the original `range`.\n *\n * This is important for `AttributeOperation` because, for its range, it changes only the top-level nodes. So we need to\n * track only how those nodes have been affected by `MoveOperation`.\n */\nfunction _breakRangeByMoveOperation( range: Range, moveOp: MoveOperation ) {\n\tconst moveRange = Range._createFromPositionAndShift( moveOp.sourcePosition, moveOp.howMany );\n\n\t// We are transforming `range` (original range) by `moveRange` (range moved by move operation). As usual when it comes to\n\t// transforming a ranges, we may have a common part of the ranges and we may have a difference part (zero to two ranges).\n\tlet common = null;\n\tlet difference: Array<Range> = [];\n\n\t// Let's compare the ranges.\n\tif ( moveRange.containsRange( range, true ) ) {\n\t\t// If the whole original range is moved, treat it whole as a common part. There's also no difference part.\n\t\tcommon = range;\n\t} else if ( range.start.hasSameParentAs( moveRange.start ) ) {\n\t\t// If the ranges are \"on the same level\" (in the same parent) then move operation may move exactly those nodes\n\t\t// that are changed by the attribute operation. In this case we get common part and difference part in the usual way.\n\t\tdifference = range.getDifference( moveRange );\n\t\tcommon = range.getIntersection( moveRange );\n\t} else {\n\t\t// In any other situation we assume that original range is different than move range, that is that move operation\n\t\t// moves other nodes that attribute operation change. Even if the moved range is deep inside in the original range.\n\t\t//\n\t\t// Note that this is different than in `.getIntersection` (we would get a common part in that case) and different\n\t\t// than `.getDifference` (we would get two ranges).\n\t\tdifference = [ range ];\n\t}\n\n\tconst result: Array<Range> = [];\n\n\t// The default behaviour of `_getTransformedByMove` might get wrong results for difference part, though, so\n\t// we do it by hand.\n\tfor ( let diff of difference ) {\n\t\t// First, transform the range by removing moved nodes. Since this is a difference, this is safe, `null` won't be returned\n\t\t// as the range is different than the moved range.\n\t\tdiff = diff._getTransformedByDeletion( moveOp.sourcePosition, moveOp.howMany )!;\n\n\t\t// Transform also `targetPosition`.\n\t\tconst targetPosition = moveOp.getMovedRangeStart();\n\n\t\t// Spread the range only if moved nodes are inserted only between the top-level nodes of the `diff` range.\n\t\tconst spread = diff.start.hasSameParentAs( targetPosition );\n\n\t\t// Transform by insertion of moved nodes.\n\t\tconst diffs = diff._getTransformedByInsertion( targetPosition, moveOp.howMany, spread );\n\n\t\tresult.push( ...diffs );\n\t}\n\n\t// Common part can be simply transformed by the move operation. This is because move operation will not target to\n\t// that common part (the operation would have to target inside its own moved range).\n\tif ( common ) {\n\t\tresult.push(\n\t\t\tcommon._getTransformedByMove( moveOp.sourcePosition, moveOp.targetPosition, moveOp.howMany, false )[ 0 ]\n\t\t);\n\t}\n\n\treturn result;\n}\n\nsetTransformation( AttributeOperation, SplitOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// Split node is the last node in `AttributeOperation#range`.\n\t// `AttributeOperation#range` needs to be expanded to include the new (split) node.\n\t//\n\t// Attribute `type` to be changed to `numbered` but the `listItem` is split.\n\t// <listItem type=\"bulleted\">foobar</listItem>\n\t//\n\t// After split:\n\t// <listItem type=\"bulleted\">foo</listItem><listItem type=\"bulleted\">bar</listItem>\n\t//\n\t// After attribute change:\n\t// <listItem type=\"numbered\">foo</listItem><listItem type=\"numbered\">foo</listItem>\n\t//\n\tif ( a.range.end.isEqual( b.insertionPosition ) ) {\n\t\tif ( !b.graveyardPosition ) {\n\t\t\ta.range.end.offset++;\n\t\t}\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 2:\n\t//\n\t// Split position is inside `AttributeOperation#range`, at the same level, so the nodes to change are\n\t// not going to make a flat range.\n\t//\n\t// Content with range-to-change and split position:\n\t// <p>Fo[zb^a]r</p>\n\t//\n\t// After split:\n\t// <p>Fozb</p><p>ar</p>\n\t//\n\t// Make two separate ranges containing all nodes to change:\n\t// <p>Fo[zb]</p><p>[a]r</p>\n\t//\n\tif ( a.range.start.hasSameParentAs( b.splitPosition ) && a.range.containsPosition( b.splitPosition ) ) {\n\t\tconst secondPart = a.clone();\n\n\t\tsecondPart.range = new Range(\n\t\t\tb.moveTargetPosition.clone(),\n\t\t\ta.range.end._getCombined( b.splitPosition, b.moveTargetPosition )\n\t\t);\n\n\t\t( a.range as any ).end = b.splitPosition.clone();\n\t\ta.range.end.stickiness = 'toPrevious';\n\n\t\treturn [ a, secondPart ];\n\t}\n\n\t// The default case.\n\t//\n\ta.range = a.range._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, AttributeOperation, ( a, b ) => {\n\tconst result: Array<Operation> = [ a ];\n\n\t// Case 1:\n\t//\n\t// The attribute operation range includes the position where nodes were inserted.\n\t// There are two possible scenarios: the inserted nodes were text and they should receive attributes or\n\t// the inserted nodes were elements and they should not receive attributes.\n\t//\n\t// This is a mirror scenario to the one described in `AttributeOperation` x `InsertOperation` transformation,\n\t// although this case is a little less complicated. In this case we simply need to change attributes of the\n\t// inserted nodes and that's it.\n\t//\n\tif ( a.shouldReceiveAttributes && a.position.hasSameParentAs( b.range.start ) && b.range.containsPosition( a.position ) ) {\n\t\tconst op = _getComplementaryAttributeOperations( a, b.key, b.newValue );\n\n\t\tif ( op ) {\n\t\t\tresult.push( op );\n\t\t}\n\t}\n\n\t// The default case is: do nothing.\n\t// `AttributeOperation` does not change the model tree structure so `InsertOperation` does not need to be changed.\n\t//\n\treturn result;\n} );\n\nsetTransformation( InsertOperation, InsertOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Two insert operations insert nodes at the same position. Since they are the same, it needs to be decided\n\t// what will be the order of inserted nodes. However, there is no additional information to help in that\n\t// decision. Also, when `b` will be transformed by `a`, the same order must be maintained.\n\t//\n\t// To achieve that, we will check if the operation is strong.\n\t// If it is, it won't get transformed. If it is not, it will be moved.\n\t//\n\tif ( a.position.isEqual( b.position ) && context.aIsStrong ) {\n\t\treturn [ a ];\n\t}\n\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, MoveOperation, ( a, b ) => {\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedByMoveOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, SplitOperation, ( a, b ) => {\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( InsertOperation, MergeOperation, ( a, b ) => {\n\ta.position = a.position._getTransformedByMergeOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( MarkerOperation, InsertOperation, ( a, b ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = a.oldRange._getTransformedByInsertOperation( b )[ 0 ];\n\t}\n\n\tif ( a.newRange ) {\n\t\ta.newRange = a.newRange._getTransformedByInsertOperation( b )[ 0 ];\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, MarkerOperation, ( a, b, context ) => {\n\tif ( a.name == b.name ) {\n\t\tif ( context.aIsStrong ) {\n\t\t\ta.oldRange = b.newRange ? b.newRange.clone() : null;\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, MergeOperation, ( a, b ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = a.oldRange._getTransformedByMergeOperation( b );\n\t}\n\n\tif ( a.newRange ) {\n\t\ta.newRange = a.newRange._getTransformedByMergeOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, MoveOperation, ( a, b, context ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = Range._createFromRanges( a.oldRange._getTransformedByMoveOperation( b ) );\n\t}\n\n\tif ( a.newRange ) {\n\t\tif ( context.abRelation ) {\n\t\t\tconst aNewRange = Range._createFromRanges( a.newRange._getTransformedByMoveOperation( b ) );\n\n\t\t\tif ( context.abRelation.side == 'left' && b.targetPosition.isEqual( a.newRange.start ) ) {\n\t\t\t\t( a.newRange as any ).end = aNewRange.end;\n\t\t\t\t( a.newRange.start as any ).path = context.abRelation.path;\n\n\t\t\t\treturn [ a ];\n\t\t\t} else if ( context.abRelation.side == 'right' && b.targetPosition.isEqual( a.newRange.end ) ) {\n\t\t\t\t( a.newRange as any ).start = aNewRange.start;\n\t\t\t\t( a.newRange.end as any ).path = context.abRelation.path;\n\n\t\t\t\treturn [ a ];\n\t\t\t}\n\t\t}\n\n\t\ta.newRange = Range._createFromRanges( a.newRange._getTransformedByMoveOperation( b ) );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MarkerOperation, SplitOperation, ( a, b, context ) => {\n\tif ( a.oldRange ) {\n\t\ta.oldRange = a.oldRange._getTransformedBySplitOperation( b );\n\t}\n\n\tif ( a.newRange ) {\n\t\tif ( context.abRelation ) {\n\t\t\tconst aNewRange = a.newRange._getTransformedBySplitOperation( b );\n\n\t\t\tif ( a.newRange.start.isEqual( b.splitPosition ) && context.abRelation.wasStartBeforeMergedElement ) {\n\t\t\t\t( a.newRange as any ).start = Position._createAt( b.insertionPosition );\n\t\t\t} else if ( a.newRange.start.isEqual( b.splitPosition ) && !context.abRelation.wasInLeftElement ) {\n\t\t\t\t( a.newRange as any ).start = Position._createAt( b.moveTargetPosition );\n\t\t\t}\n\n\t\t\tif ( a.newRange.end.isEqual( b.splitPosition ) && context.abRelation.wasInRightElement ) {\n\t\t\t\t( a.newRange as any ).end = Position._createAt( b.moveTargetPosition );\n\t\t\t} else if ( a.newRange.end.isEqual( b.splitPosition ) && context.abRelation.wasEndBeforeMergedElement ) {\n\t\t\t\t( a.newRange as any ).end = Position._createAt( b.insertionPosition );\n\t\t\t} else {\n\t\t\t\t( a.newRange as any ).end = aNewRange.end;\n\t\t\t}\n\n\t\t\treturn [ a ];\n\t\t}\n\n\t\ta.newRange = a.newRange._getTransformedBySplitOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( MergeOperation, InsertOperation, ( a, b ) => {\n\tif ( a.sourcePosition.hasSameParentAs( b.position ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedByInsertOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( MergeOperation, MergeOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Same merge operations.\n\t//\n\t// Both operations have same source and target positions. So the element already got merged and there is\n\t// theoretically nothing to do.\n\t//\n\tif ( a.sourcePosition.isEqual( b.sourcePosition ) && a.targetPosition.isEqual( b.targetPosition ) ) {\n\t\t// There are two ways that we can provide a do-nothing operation.\n\t\t//\n\t\t// First is simply a NoOperation instance. We will use it if `b` operation was not undone.\n\t\t//\n\t\t// Second is a merge operation that has the source operation in the merged element - in the graveyard -\n\t\t// same target position and `howMany` equal to `0`. So it is basically merging an empty element from graveyard\n\t\t// which is almost the same as NoOperation.\n\t\t//\n\t\t// This way the merge operation can be later transformed by split operation\n\t\t// to provide correct undo. This will be used if `b` operation was undone (only then it is correct).\n\t\t//\n\t\tif ( !context.bWasUndone ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t} else {\n\t\t\tconst path = b.graveyardPosition.path.slice();\n\t\t\tpath.push( 0 );\n\n\t\t\ta.sourcePosition = new Position( b.graveyardPosition.root, path );\n\t\t\ta.howMany = 0;\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// Case 2:\n\t//\n\t// Same merge source position but different target position.\n\t//\n\t// This can happen during collaboration. For example, if one client merged a paragraph to the previous paragraph\n\t// and the other person removed that paragraph and merged the same paragraph to something before:\n\t//\n\t// Client A:\n\t// <p>Foo</p><p>Bar</p><p>[]Xyz</p>\n\t// <p>Foo</p><p>BarXyz</p>\n\t//\n\t// Client B:\n\t// <p>Foo</p>[<p>Bar</p>]<p>Xyz</p>\n\t// <p>Foo</p><p>[]Xyz</p>\n\t// <p>FooXyz</p>\n\t//\n\t// In this case we need to decide where finally \"Xyz\" will land:\n\t//\n\t// <p>FooXyz</p>               graveyard: <p>Bar</p>\n\t// <p>Foo</p>                  graveyard: <p>BarXyz</p>\n\t//\n\t// Let's move it in a way so that a merge operation that does not target to graveyard is more important so that\n\t// nodes does not end up in the graveyard. It makes sense. Both for Client A and for Client B \"Xyz\" finally did not\n\t// end up in the graveyard (see above).\n\t//\n\t// If neither or both operations point to graveyard, then let `aIsStrong` decide.\n\t//\n\tif (\n\t\ta.sourcePosition.isEqual( b.sourcePosition ) && !a.targetPosition.isEqual( b.targetPosition ) &&\n\t\t!context.bWasUndone && context.abRelation != 'splitAtSource'\n\t) {\n\t\tconst aToGraveyard = a.targetPosition.root.rootName == '$graveyard';\n\t\tconst bToGraveyard = b.targetPosition.root.rootName == '$graveyard';\n\n\t\t// If `aIsWeak` it means that `a` points to graveyard while `b` doesn't. Don't move nodes then.\n\t\tconst aIsWeak = aToGraveyard && !bToGraveyard;\n\n\t\t// If `bIsWeak` it means that `b` points to graveyard while `a` doesn't. Force moving nodes then.\n\t\tconst bIsWeak = bToGraveyard && !aToGraveyard;\n\n\t\t// Force move if `b` is weak or neither operation is weak but `a` is stronger through `context.aIsStrong`.\n\t\tconst forceMove = bIsWeak || ( !aIsWeak && context.aIsStrong );\n\n\t\tif ( forceMove ) {\n\t\t\tconst sourcePosition = b.targetPosition._getTransformedByMergeOperation( b );\n\t\t\tconst targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\t\t\treturn [ new MoveOperation( sourcePosition, a.howMany, targetPosition, 0 ) ];\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.sourcePosition.hasSameParentAs( b.targetPosition ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedByMergeOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\t// Handle positions in graveyard.\n\t// If graveyard positions are same and `a` operation is strong - do not transform.\n\tif ( !a.graveyardPosition.isEqual( b.graveyardPosition ) || !context.aIsStrong ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMergeOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MergeOperation, MoveOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// The element to merge got removed.\n\t//\n\t// Merge operation does support merging elements which are not siblings. So it would not be a problem\n\t// from technical point of view. However, if the element was removed, the intention of the user deleting it\n\t// was to have it all deleted, together with its children. From user experience point of view, moving back the\n\t// removed nodes might be unexpected. This means that in this scenario we will block the merging.\n\t//\n\t// The exception of this rule would be if the remove operation was later undone.\n\t//\n\tconst removedRange = Range._createFromPositionAndShift( b.sourcePosition, b.howMany );\n\n\tif ( b.type == 'remove' && !context.bWasUndone && !context.forceWeakRemove ) {\n\t\tif ( a.deletionPosition.hasSameParentAs( b.sourcePosition ) && removedRange.containsPosition( a.sourcePosition ) ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.sourcePosition.hasSameParentAs( b.targetPosition ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\tif ( a.sourcePosition.hasSameParentAs( b.sourcePosition ) ) {\n\t\ta.howMany -= b.howMany;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedByMoveOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedByMoveOperation( b );\n\n\t// `MergeOperation` graveyard position is like `MoveOperation` target position. It is a position where element(s) will\n\t// be moved. Like in other similar cases, we need to consider the scenario when those positions are same.\n\t// Here, we will treat `MergeOperation` like it is always strong (see `InsertOperation` x `InsertOperation` for comparison).\n\t// This means that we won't transform graveyard position if it is equal to move operation target position.\n\tif ( !a.graveyardPosition.isEqual( b.targetPosition ) ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMoveOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MergeOperation, SplitOperation, ( a, b, context ) => {\n\tif ( b.graveyardPosition ) {\n\t\t// If `b` operation defines graveyard position, a node from graveyard will be moved. This means that we need to\n\t\t// transform `a.graveyardPosition` accordingly.\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByDeletion( b.graveyardPosition, 1 )!;\n\n\t\t// This is a scenario foreseen in `MergeOperation` x `MergeOperation`, with two identical merge operations.\n\t\t//\n\t\t// So, there was `MergeOperation` x `MergeOperation` transformation earlier. Now, `a` is a merge operation which\n\t\t// source position is in graveyard. Interestingly, split operation wants to use the node to be merged by `a`. This\n\t\t// means that `b` is undoing that merge operation from earlier, which caused `a` to be in graveyard.\n\t\t//\n\t\t// If that's the case, at this point, we will only \"fix\" `a.howMany`. It was earlier set to `0` in\n\t\t// `MergeOperation` x `MergeOperation` transformation. Later transformations in this function will change other\n\t\t// properties.\n\t\t//\n\t\tif ( a.deletionPosition.isEqual( b.graveyardPosition ) ) {\n\t\t\ta.howMany = b.howMany;\n\t\t}\n\t}\n\n\t// Case 1:\n\t//\n\t// Merge operation moves nodes to the place where split happens.\n\t// This is a classic situation when there are two paragraphs, and there is a split (enter) after the first\n\t// paragraph and there is a merge (delete) at the beginning of the second paragraph:\n\t//\n\t// <p>Foo{}</p><p>[]Bar</p>.\n\t//\n\t// Split is after `Foo`, while merge is from `Bar` to the end of `Foo`.\n\t//\n\t// State after split:\n\t// <p>Foo</p><p></p><p>Bar</p>\n\t//\n\t// Now, `Bar` should be merged to the new paragraph:\n\t// <p>Foo</p><p>Bar</p>\n\t//\n\t// Instead of merging it to the original paragraph:\n\t// <p>FooBar</p><p></p>\n\t//\n\t// This means that `targetPosition` needs to be transformed. This is the default case though.\n\t// For example, if the split would be after `F`, `targetPosition` should also be transformed.\n\t//\n\t// There are three exceptions, though, when we want to keep `targetPosition` as it was.\n\t//\n\t// First exception is when the merge target position is inside an element (not at the end, as usual). This\n\t// happens when the merge operation earlier was transformed by \"the same\" merge operation. If merge operation\n\t// targets inside the element we want to keep the original target position (and not transform it) because\n\t// we have additional context telling us that we want to merge to the original element. We can check if the\n\t// merge operation points inside element by checking what is `SplitOperation#howMany`. Since merge target position\n\t// is same as split position, if `howMany` is non-zero, it means that the merge target position is inside an element.\n\t//\n\t// Second exception is when the element to merge is in the graveyard and split operation uses it. In that case\n\t// if target position would be transformed, the merge operation would target at the source position:\n\t//\n\t// root: <p>Foo</p>\t\t\t\tgraveyard: <p></p>\n\t//\n\t// SplitOperation: root [ 0, 3 ] using graveyard [ 0 ] (howMany = 0)\n\t// MergeOperation: graveyard [ 0, 0 ] -> root [ 0, 3 ] (howMany = 0)\n\t//\n\t// Since split operation moves the graveyard node back to the root, the merge operation source position changes.\n\t// We would like to merge from the empty <p> to the \"Foo\" <p>:\n\t//\n\t// root: <p>Foo</p><p></p>\t\t\tgraveyard:\n\t//\n\t// MergeOperation#sourcePosition = root [ 1, 0 ]\n\t//\n\t// If `targetPosition` is transformed, it would become root [ 1, 0 ] as well. It has to be kept as it was.\n\t//\n\t// Third exception is connected with relations. If this happens during undo and we have explicit information\n\t// that target position has not been affected by the operation which is undone by this split then this split should\n\t// not move the target position either.\n\t//\n\tif ( a.targetPosition.isEqual( b.splitPosition ) ) {\n\t\tconst mergeInside = b.howMany != 0;\n\t\tconst mergeSplittingElement = b.graveyardPosition && a.deletionPosition.isEqual( b.graveyardPosition );\n\n\t\tif ( mergeInside || mergeSplittingElement || context.abRelation == 'mergeTargetNotMoved' ) {\n\t\t\ta.sourcePosition = a.sourcePosition._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// Case 2:\n\t//\n\t// Merge source is at the same position as split position. This sometimes happen, mostly during undo.\n\t// The decision here is mostly to choose whether merge source position should stay where it is (so it will be at the end of the\n\t// split element) or should be move to the beginning of the new element.\n\t//\n\tif ( a.sourcePosition.isEqual( b.splitPosition ) ) {\n\t\t// Use context to check if `SplitOperation` is not undoing a merge operation, that didn't change the `a` operation.\n\t\t// This scenario happens the undone merge operation moved nodes at the source position of `a` operation.\n\t\t// In that case `a` operation source position should stay where it is.\n\t\tif ( context.abRelation == 'mergeSourceNotMoved' ) {\n\t\t\ta.howMany = 0;\n\t\t\ta.targetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\n\t\t// This merge operation might have been earlier transformed by a merge operation which both merged the same element.\n\t\t// See that case in `MergeOperation` x `MergeOperation` transformation. In that scenario, if the merge operation has been undone,\n\t\t// the special case is not applied.\n\t\t//\n\t\t// Now, the merge operation is transformed by the split which has undone that previous merge operation.\n\t\t// So now we are fixing situation which was skipped in `MergeOperation` x `MergeOperation` case.\n\t\t//\n\t\tif ( context.abRelation == 'mergeSameElement' || a.sourcePosition.offset > 0 ) {\n\t\t\ta.sourcePosition = b.moveTargetPosition.clone();\n\t\t\ta.targetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.sourcePosition.hasSameParentAs( b.splitPosition ) ) {\n\t\ta.howMany = b.splitPosition.offset;\n\t}\n\n\ta.sourcePosition = a.sourcePosition._getTransformedBySplitOperation( b );\n\ta.targetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( MoveOperation, InsertOperation, ( a, b ) => {\n\tconst moveRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\tconst transformed = moveRange._getTransformedByInsertOperation( b, false )[ 0 ];\n\n\ta.sourcePosition = transformed.start;\n\ta.howMany = transformed.end.offset - transformed.start.offset;\n\n\t// See `InsertOperation` x `MoveOperation` transformation for details on this case.\n\t//\n\t// In summary, both operations point to the same place, so the order of nodes needs to be decided.\n\t// `MoveOperation` is considered weaker, so it is always transformed, unless there was a certain relation\n\t// between operations.\n\t//\n\tif ( !a.targetPosition.isEqual( b.position ) ) {\n\t\ta.targetPosition = a.targetPosition._getTransformedByInsertOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( MoveOperation, MoveOperation, ( a, b, context ) => {\n\t//\n\t// Setting and evaluating some variables that will be used in special cases and default algorithm.\n\t//\n\t// Create ranges from `MoveOperations` properties.\n\tconst rangeA = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\tconst rangeB = Range._createFromPositionAndShift( b.sourcePosition, b.howMany );\n\n\t// Assign `context.aIsStrong` to a different variable, because the value may change during execution of\n\t// this algorithm and we do not want to override original `context.aIsStrong` that will be used in later transformations.\n\tlet aIsStrong = context.aIsStrong;\n\n\t// This will be used to decide the order of nodes if both operations target at the same position.\n\t// By default, use strong/weak operation mechanism.\n\tlet insertBefore = !context.aIsStrong;\n\n\t// If the relation is set, then use it to decide nodes order.\n\tif ( context.abRelation == 'insertBefore' || context.baRelation == 'insertAfter' ) {\n\t\tinsertBefore = true;\n\t} else if ( context.abRelation == 'insertAfter' || context.baRelation == 'insertBefore' ) {\n\t\tinsertBefore = false;\n\t}\n\n\t// `a.targetPosition` could be affected by the `b` operation. We will transform it.\n\tlet newTargetPosition;\n\n\tif ( a.targetPosition.isEqual( b.targetPosition ) && insertBefore ) {\n\t\tnewTargetPosition = a.targetPosition._getTransformedByDeletion(\n\t\t\tb.sourcePosition,\n\t\t\tb.howMany\n\t\t);\n\t} else {\n\t\tnewTargetPosition = a.targetPosition._getTransformedByMove(\n\t\t\tb.sourcePosition,\n\t\t\tb.targetPosition,\n\t\t\tb.howMany\n\t\t);\n\t}\n\n\t//\n\t// Special case #1 + mirror.\n\t//\n\t// Special case when both move operations' target positions are inside nodes that are\n\t// being moved by the other move operation. So in other words, we move ranges into inside of each other.\n\t// This case can't be solved reasonably (on the other hand, it should not happen often).\n\tif ( _moveTargetIntoMovedRange( a, b ) && _moveTargetIntoMovedRange( b, a ) ) {\n\t\t// Instead of transforming operation, we return a reverse of the operation that we transform by.\n\t\t// So when the results of this \"transformation\" will be applied, `b` MoveOperation will get reversed.\n\t\treturn [ b.getReversed() ];\n\t}\n\t//\n\t// End of special case #1.\n\t//\n\n\t//\n\t// Special case #2.\n\t//\n\t// Check if `b` operation targets inside `rangeA`.\n\tconst bTargetsToA = rangeA.containsPosition( b.targetPosition );\n\n\t// If `b` targets to `rangeA` and `rangeA` contains `rangeB`, `b` operation has no influence on `a` operation.\n\t// You might say that operation `b` is captured inside operation `a`.\n\tif ( bTargetsToA && rangeA.containsRange( rangeB, true ) ) {\n\t\t// There is a mini-special case here, where `rangeB` is on other level than `rangeA`. That's why\n\t\t// we need to transform `a` operation anyway.\n\t\t( rangeA as any ).start = rangeA.start._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\t\t( rangeA as any ).end = rangeA.end._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\n\t\treturn _makeMoveOperationsFromRanges( [ rangeA ], newTargetPosition! );\n\t}\n\n\t//\n\t// Special case #2 mirror.\n\t//\n\tconst aTargetsToB = rangeB.containsPosition( a.targetPosition );\n\n\tif ( aTargetsToB && rangeB.containsRange( rangeA, true ) ) {\n\t\t// `a` operation is \"moved together\" with `b` operation.\n\t\t// Here, just move `rangeA` \"inside\" `rangeB`.\n\t\t( rangeA as any ).start = rangeA.start._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\t\t( rangeA as any ).end = rangeA.end._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\n\t\treturn _makeMoveOperationsFromRanges( [ rangeA ], newTargetPosition! );\n\t}\n\t//\n\t// End of special case #2.\n\t//\n\n\t//\n\t// Special case #3 + mirror.\n\t//\n\t// `rangeA` has a node which is an ancestor of `rangeB`. In other words, `rangeB` is inside `rangeA`\n\t// but not on the same tree level. In such case ranges have common part but we have to treat it\n\t// differently, because in such case those ranges are not really conflicting and should be treated like\n\t// two separate ranges. Also we have to discard two difference parts.\n\tconst aCompB = compareArrays( a.sourcePosition.getParentPath(), b.sourcePosition.getParentPath() );\n\n\tif ( aCompB == 'prefix' || aCompB == 'extension' ) {\n\t\t// Transform `rangeA` by `b` operation and make operation out of it, and that's all.\n\t\t// Note that this is a simplified version of default case, but here we treat the common part (whole `rangeA`)\n\t\t// like a one difference part.\n\t\t( rangeA as any ).start = rangeA.start._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\t\t( rangeA as any ).end = rangeA.end._getTransformedByMove( b.sourcePosition, b.targetPosition, b.howMany );\n\n\t\treturn _makeMoveOperationsFromRanges( [ rangeA ], newTargetPosition! );\n\t}\n\t//\n\t// End of special case #3.\n\t//\n\n\t//\n\t// Default case - ranges are on the same level or are not connected with each other.\n\t//\n\t// Modifier for default case.\n\t// Modifies `aIsStrong` flag in certain conditions.\n\t//\n\t// If only one of operations is a remove operation, we force remove operation to be the \"stronger\" one\n\t// to provide more expected results.\n\tif ( a.type == 'remove' && b.type != 'remove' && !context.aWasUndone && !context.forceWeakRemove ) {\n\t\taIsStrong = true;\n\t} else if ( a.type != 'remove' && b.type == 'remove' && !context.bWasUndone && !context.forceWeakRemove ) {\n\t\taIsStrong = false;\n\t}\n\n\t// Handle operation's source ranges - check how `rangeA` is affected by `b` operation.\n\t// This will aggregate transformed ranges.\n\tconst ranges = [];\n\n\t// Get the \"difference part\" of `a` operation source range.\n\t// This is an array with one or two ranges. Two ranges if `rangeB` is inside `rangeA`.\n\tconst difference = rangeA.getDifference( rangeB );\n\n\tfor ( const range of difference ) {\n\t\t// Transform those ranges by `b` operation. For example if `b` moved range from before those ranges, fix those ranges.\n\t\t( range as any ).start = range.start._getTransformedByDeletion( b.sourcePosition, b.howMany );\n\t\t( range as any ).end = range.end._getTransformedByDeletion( b.sourcePosition, b.howMany );\n\n\t\t// If `b` operation targets into `rangeA` on the same level, spread `rangeA` into two ranges.\n\t\tconst shouldSpread = compareArrays( range.start.getParentPath(), b.getMovedRangeStart().getParentPath() ) == 'same';\n\t\tconst newRanges = range._getTransformedByInsertion( b.getMovedRangeStart(), b.howMany, shouldSpread );\n\n\t\tranges.push( ...newRanges );\n\t}\n\n\t// Then, we have to manage the \"common part\" of both move ranges.\n\tconst common = rangeA.getIntersection( rangeB );\n\n\tif ( common !== null && aIsStrong ) {\n\t\t// Calculate the new position of that part of original range.\n\t\t( common as any ).start = common.start._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\t\t( common as any ).end = common.end._getCombined( b.sourcePosition, b.getMovedRangeStart() );\n\n\t\t// Take care of proper range order.\n\t\t//\n\t\t// Put `common` at appropriate place. Keep in mind that we are interested in original order.\n\t\t// Basically there are only three cases: there is zero, one or two difference ranges.\n\t\t//\n\t\t// If there is zero difference ranges, just push `common` in the array.\n\t\tif ( ranges.length === 0 ) {\n\t\t\tranges.push( common );\n\t\t}\n\t\t// If there is one difference range, we need to check whether common part was before it or after it.\n\t\telse if ( ranges.length == 1 ) {\n\t\t\tif ( rangeB.start.isBefore( rangeA.start ) || rangeB.start.isEqual( rangeA.start ) ) {\n\t\t\t\tranges.unshift( common );\n\t\t\t} else {\n\t\t\t\tranges.push( common );\n\t\t\t}\n\t\t}\n\t\t// If there are more ranges (which means two), put common part between them. This is the only scenario\n\t\t// where there could be two difference ranges so we don't have to make any comparisons.\n\t\telse {\n\t\t\tranges.splice( 1, 0, common );\n\t\t}\n\t}\n\n\tif ( ranges.length === 0 ) {\n\t\t// If there are no \"source ranges\", nothing should be changed.\n\t\t// Note that this can happen only if `aIsStrong == false` and `rangeA.isEqual( rangeB )`.\n\t\treturn [ new NoOperation( a.baseVersion ) ];\n\t}\n\n\treturn _makeMoveOperationsFromRanges( ranges, newTargetPosition! );\n} );\n\nsetTransformation( MoveOperation, SplitOperation, ( a, b, context ) => {\n\tlet newTargetPosition = a.targetPosition.clone();\n\n\t// Do not transform if target position is same as split insertion position and this split comes from undo.\n\t// This should be done on relations but it is too much work for now as it would require relations working in collaboration.\n\t// We need to make a decision how we will resolve such conflict and this is less harmful way.\n\tif ( !a.targetPosition.isEqual( b.insertionPosition ) || !b.graveyardPosition || context.abRelation == 'moveTargetAfter' ) {\n\t\tnewTargetPosition = a.targetPosition._getTransformedBySplitOperation( b );\n\t}\n\n\t// Case 1:\n\t//\n\t// Last element in the moved range got split.\n\t//\n\t// In this case the default range transformation will not work correctly as the element created by\n\t// split operation would be outside the range. The range to move needs to be fixed manually.\n\t//\n\tconst moveRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\n\tif ( moveRange.end.isEqual( b.insertionPosition ) ) {\n\t\t// Do it only if this is a \"natural\" split, not a one that comes from undo.\n\t\t// If this is undo split, only `targetPosition` needs to be changed (if the move is a remove).\n\t\tif ( !b.graveyardPosition ) {\n\t\t\ta.howMany++;\n\t\t}\n\n\t\ta.targetPosition = newTargetPosition;\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 2:\n\t//\n\t// Split happened between the moved nodes. In this case two ranges to move need to be generated.\n\t//\n\t// Characters `ozba` are moved to the end of paragraph `Xyz` but split happened.\n\t// <p>F[oz|ba]r</p><p>Xyz</p>\n\t//\n\t// After split:\n\t// <p>F[oz</p><p>ba]r</p><p>Xyz</p>\n\t//\n\t// Correct ranges:\n\t// <p>F[oz]</p><p>[ba]r</p><p>Xyz</p>\n\t//\n\t// After move:\n\t// <p>F</p><p>r</p><p>Xyzozba</p>\n\t//\n\tif ( moveRange.start.hasSameParentAs( b.splitPosition ) && moveRange.containsPosition( b.splitPosition ) ) {\n\t\tlet rightRange = new Range( b.splitPosition, moveRange.end );\n\t\trightRange = rightRange._getTransformedBySplitOperation( b );\n\n\t\tconst ranges = [\n\t\t\tnew Range( moveRange.start, b.splitPosition ),\n\t\t\trightRange\n\t\t];\n\n\t\treturn _makeMoveOperationsFromRanges( ranges, newTargetPosition );\n\t}\n\n\t// Case 3:\n\t//\n\t// Move operation targets at the split position. We need to decide if the nodes should be inserted\n\t// at the end of the split element or at the beginning of the new element.\n\t//\n\tif ( a.targetPosition.isEqual( b.splitPosition ) && context.abRelation == 'insertAtSource' ) {\n\t\tnewTargetPosition = b.moveTargetPosition;\n\t}\n\n\t// Case 4:\n\t//\n\t// Move operation targets just after the split element. We need to decide if the nodes should be inserted\n\t// between two parts of split element, or after the new element.\n\t//\n\t// Split at `|`, while move operation moves `<p>Xyz</p>` and targets at `^`:\n\t// <p>Foo|bar</p>^<p>baz</p>\n\t// <p>Foo</p>^<p>bar</p><p>baz</p> or <p>Foo</p><p>bar</p>^<p>baz</p>?\n\t//\n\t// If there is no contextual information between operations (for example, they come from collaborative\n\t// editing), we don't want to put some unrelated content (move) between parts of related content (split parts).\n\t// However, if the split is from undo, in the past, the moved content might be targeting between the\n\t// split parts, meaning that was exactly user's intention:\n\t//\n\t// <p>Foo</p>^<p>bar</p>\t\t<--- original situation, in \"past\".\n\t// <p>Foobar</p>^\t\t\t\t<--- after merge target position is transformed.\n\t// <p>Foo|bar</p>^\t\t\t\t<--- then the merge is undone, and split happens, which leads us to current situation.\n\t//\n\t// In this case it is pretty clear that the intention was to put new paragraph between those nodes,\n\t// so we need to transform accordingly. We can detect this scenario thanks to relations.\n\t//\n\tif ( a.targetPosition.isEqual( b.insertionPosition ) && context.abRelation == 'insertBetween' ) {\n\t\tnewTargetPosition = a.targetPosition;\n\t}\n\n\t// The default case.\n\t//\n\tconst transformed = moveRange._getTransformedBySplitOperation( b );\n\tconst ranges = [ transformed ];\n\n\t// Case 5:\n\t//\n\t// Moved range contains graveyard element used by split operation. Add extra move operation to the result.\n\t//\n\tif ( b.graveyardPosition ) {\n\t\tconst movesGraveyardElement = moveRange.start.isEqual( b.graveyardPosition ) || moveRange.containsPosition( b.graveyardPosition );\n\n\t\tif ( a.howMany > 1 && movesGraveyardElement && !context.aWasUndone ) {\n\t\t\tranges.push( Range._createFromPositionAndShift( b.insertionPosition, 1 ) );\n\t\t}\n\t}\n\n\treturn _makeMoveOperationsFromRanges( ranges, newTargetPosition );\n} );\n\nsetTransformation( MoveOperation, MergeOperation, ( a, b, context ) => {\n\tconst movedRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\n\tif ( b.deletionPosition.hasSameParentAs( a.sourcePosition ) && movedRange.containsPosition( b.sourcePosition ) ) {\n\t\tif ( a.type == 'remove' && !context.forceWeakRemove ) {\n\t\t\t// Case 1:\n\t\t\t//\n\t\t\t// The element to remove got merged.\n\t\t\t//\n\t\t\t// Merge operation does support merging elements which are not siblings. So it would not be a problem\n\t\t\t// from technical point of view. However, if the element was removed, the intention of the user\n\t\t\t// deleting it was to have it all deleted. From user experience point of view, moving back the\n\t\t\t// removed nodes might be unexpected. This means that in this scenario we will reverse merging and remove the element.\n\t\t\t//\n\t\t\tif ( !context.aWasUndone ) {\n\t\t\t\tconst results = [];\n\n\t\t\t\tlet gyMoveSource = b.graveyardPosition.clone();\n\t\t\t\tlet splitNodesMoveSource = b.targetPosition._getTransformedByMergeOperation( b );\n\n\t\t\t\tif ( a.howMany > 1 ) {\n\t\t\t\t\tresults.push( new MoveOperation( a.sourcePosition, a.howMany - 1, a.targetPosition, 0 ) );\n\n\t\t\t\t\tgyMoveSource = gyMoveSource._getTransformedByMove( a.sourcePosition, a.targetPosition, a.howMany - 1 );\n\t\t\t\t\tsplitNodesMoveSource = splitNodesMoveSource._getTransformedByMove( a.sourcePosition, a.targetPosition, a.howMany - 1 );\n\t\t\t\t}\n\n\t\t\t\tconst gyMoveTarget = b.deletionPosition._getCombined( a.sourcePosition, a.targetPosition );\n\t\t\t\tconst gyMove = new MoveOperation( gyMoveSource, 1, gyMoveTarget, 0 );\n\n\t\t\t\tconst splitNodesMoveTargetPath = gyMove.getMovedRangeStart().path.slice();\n\t\t\t\tsplitNodesMoveTargetPath.push( 0 );\n\n\t\t\t\tconst splitNodesMoveTarget = new Position( gyMove.targetPosition.root, splitNodesMoveTargetPath );\n\t\t\t\tsplitNodesMoveSource = splitNodesMoveSource._getTransformedByMove( gyMoveSource, gyMoveTarget, 1 );\n\t\t\t\tconst splitNodesMove = new MoveOperation( splitNodesMoveSource, b.howMany, splitNodesMoveTarget, 0 );\n\n\t\t\t\tresults.push( gyMove );\n\t\t\t\tresults.push( splitNodesMove );\n\n\t\t\t\treturn results;\n\t\t\t}\n\t\t} else {\n\t\t\t// Case 2:\n\t\t\t//\n\t\t\t// The element to move got merged and it was the only element to move.\n\t\t\t// In this case just don't do anything, leave the node in the graveyard. Without special case\n\t\t\t// it would be a move operation that moves 0 nodes, so maybe it is better just to return no-op.\n\t\t\t//\n\t\t\tif ( a.howMany == 1 ) {\n\t\t\t\tif ( !context.bWasUndone ) {\n\t\t\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t\t\t} else {\n\t\t\t\t\ta.sourcePosition = b.graveyardPosition.clone();\n\t\t\t\t\ta.targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\t\t\t\t\treturn [ a ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// The default case.\n\t//\n\tconst moveRange = Range._createFromPositionAndShift( a.sourcePosition, a.howMany );\n\tconst transformed = moveRange._getTransformedByMergeOperation( b );\n\n\ta.sourcePosition = transformed.start;\n\ta.howMany = transformed.end.offset - transformed.start.offset;\n\ta.targetPosition = a.targetPosition._getTransformedByMergeOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( RenameOperation, InsertOperation, ( a, b ) => {\n\ta.position = a.position._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, MergeOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// Element to rename got merged, so it was moved to `b.graveyardPosition`.\n\t//\n\tif ( a.position.isEqual( b.deletionPosition ) ) {\n\t\ta.position = b.graveyardPosition.clone();\n\t\ta.position.stickiness = 'toNext';\n\n\t\treturn [ a ];\n\t}\n\n\ta.position = a.position._getTransformedByMergeOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, MoveOperation, ( a, b ) => {\n\ta.position = a.position._getTransformedByMoveOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, RenameOperation, ( a, b, context ) => {\n\tif ( a.position.isEqual( b.position ) ) {\n\t\tif ( context.aIsStrong ) {\n\t\t\ta.oldName = b.newName;\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( RenameOperation, SplitOperation, ( a, b ) => {\n\t// Case 1:\n\t//\n\t// The element to rename has been split. In this case, the new element should be also renamed.\n\t//\n\t// User decides to change the paragraph to a list item:\n\t// <paragraph>Foobar</paragraph>\n\t//\n\t// However, in meantime, split happens:\n\t// <paragraph>Foo</paragraph><paragraph>bar</paragraph>\n\t//\n\t// As a result, rename both elements:\n\t// <listItem>Foo</listItem><listItem>bar</listItem>\n\t//\n\tconst renamePath = a.position.path;\n\tconst splitPath = b.splitPosition.getParentPath();\n\n\tif ( compareArrays( renamePath, splitPath ) == 'same' && !b.graveyardPosition ) {\n\t\tconst extraRename = new RenameOperation( a.position.getShiftedBy( 1 ), a.oldName, a.newName, 0 );\n\n\t\treturn [ a, extraRename ];\n\t}\n\n\t// The default case.\n\t//\n\ta.position = a.position._getTransformedBySplitOperation( b );\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( RootAttributeOperation, RootAttributeOperation, ( a, b, context ) => {\n\tif ( a.root === b.root && a.key === b.key ) {\n\t\tif ( !context.aIsStrong || a.newValue === b.newValue ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t} else {\n\t\t\ta.oldValue = b.newValue;\n\t\t}\n\t}\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( RootOperation, RootOperation, ( a, b, context ) => {\n\tif ( a.rootName === b.rootName && a.isAdd === b.isAdd && !context.bWasUndone ) {\n\t\treturn [ new NoOperation( 0 ) ];\n\t}\n\n\treturn [ a ];\n} );\n\n// -----------------------\n\nsetTransformation( SplitOperation, InsertOperation, ( a, b ) => {\n\t// The default case.\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.position ) && a.splitPosition.offset < b.position.offset ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.splitPosition = a.splitPosition._getTransformedByInsertOperation( b );\n\ta.insertionPosition = a.insertionPosition._getTransformedByInsertOperation( b );\n\n\treturn [ a ];\n} );\n\nsetTransformation( SplitOperation, MergeOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Split element got merged. If two different elements were merged, clients will have different content.\n\t//\n\t// Example. Merge at `{}`, split at `[]`:\n\t// <heading>Foo</heading>{}<paragraph>B[]ar</paragraph>\n\t//\n\t// On merge side it will look like this:\n\t// <heading>FooB[]ar</heading>\n\t// <heading>FooB</heading><heading>ar</heading>\n\t//\n\t// On split side it will look like this:\n\t// <heading>Foo</heading>{}<paragraph>B</paragraph><paragraph>ar</paragraph>\n\t// <heading>FooB</heading><paragraph>ar</paragraph>\n\t//\n\t// Clearly, the second element is different for both clients.\n\t//\n\t// We could use the removed merge element from graveyard as a split element but then clients would have a different\n\t// model state (in graveyard), because the split side client would still have an element in graveyard (removed by merge).\n\t//\n\t// To overcome this, in `SplitOperation` x `MergeOperation` transformation we will add additional `SplitOperation`\n\t// in the graveyard, which will actually clone the merged-and-deleted element. Then, that cloned element will be\n\t// used for splitting. Example below.\n\t//\n\t// Original state:\n\t// <heading>Foo</heading>{}<paragraph>B[]ar</paragraph>\n\t//\n\t// Merge side client:\n\t//\n\t// After merge:\n\t// <heading>FooB[]ar</heading>                                 graveyard: <paragraph></paragraph>\n\t//\n\t// Extra split:\n\t// <heading>FooB[]ar</heading>                                 graveyard: <paragraph></paragraph><paragraph></paragraph>\n\t//\n\t// Use the \"cloned\" element from graveyard:\n\t// <heading>FooB</heading><paragraph>ar</paragraph>            graveyard: <paragraph></paragraph>\n\t//\n\t// Split side client:\n\t//\n\t// After split:\n\t// <heading>Foo</heading>{}<paragraph>B</paragraph><paragraph>ar</paragraph>\n\t//\n\t// After merge:\n\t// <heading>FooB</heading><paragraph>ar</paragraph>            graveyard: <paragraph></paragraph>\n\t//\n\t// This special case scenario only applies if the original split operation clones the split element.\n\t// If the original split operation has `graveyardPosition` set, it all doesn't have sense because split operation\n\t// knows exactly which element it should use. So there would be no original problem with different contents.\n\t//\n\t// Additionally, the special case applies only if the merge wasn't already undone.\n\t//\n\tif ( !a.graveyardPosition && !context.bWasUndone && a.splitPosition.hasSameParentAs( b.sourcePosition ) ) {\n\t\tconst splitPath = b.graveyardPosition.path.slice();\n\t\tsplitPath.push( 0 );\n\n\t\tconst splitPosition = new Position( b.graveyardPosition.root, splitPath );\n\t\tconst insertionPosition = SplitOperation.getInsertionPosition( new Position( b.graveyardPosition.root, splitPath ) );\n\n\t\tconst additionalSplit = new SplitOperation( splitPosition, 0, insertionPosition, null, 0 );\n\n\t\ta.splitPosition = a.splitPosition._getTransformedByMergeOperation( b );\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\t\ta.graveyardPosition = additionalSplit.insertionPosition.clone();\n\t\ta.graveyardPosition.stickiness = 'toNext';\n\n\t\treturn [ additionalSplit, a ];\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.deletionPosition ) && !a.splitPosition.isAfter( b.deletionPosition ) ) {\n\t\ta.howMany--;\n\t}\n\n\tif ( a.splitPosition.hasSameParentAs( b.targetPosition ) ) {\n\t\ta.howMany += b.howMany;\n\t}\n\n\ta.splitPosition = a.splitPosition._getTransformedByMergeOperation( b );\n\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\tif ( a.graveyardPosition ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMergeOperation( b );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( SplitOperation, MoveOperation, ( a, b, context ) => {\n\tconst rangeToMove = Range._createFromPositionAndShift( b.sourcePosition, b.howMany );\n\n\tif ( a.graveyardPosition ) {\n\t\t// Case 1:\n\t\t//\n\t\t// Split operation graveyard node was moved. In this case move operation is stronger. Since graveyard element\n\t\t// is already moved to the correct position, we need to only move the nodes after the split position.\n\t\t// This will be done by `MoveOperation` instead of `SplitOperation`.\n\t\t//\n\t\tconst gyElementMoved = rangeToMove.start.isEqual( a.graveyardPosition ) || rangeToMove.containsPosition( a.graveyardPosition );\n\n\t\tif ( !context.bWasUndone && gyElementMoved ) {\n\t\t\tconst sourcePosition = a.splitPosition._getTransformedByMoveOperation( b );\n\n\t\t\tconst newParentPosition = a.graveyardPosition._getTransformedByMoveOperation( b );\n\t\t\tconst newTargetPath = newParentPosition.path.slice();\n\t\t\tnewTargetPath.push( 0 );\n\n\t\t\tconst newTargetPosition = new Position( newParentPosition.root, newTargetPath );\n\t\t\tconst moveOp = new MoveOperation( sourcePosition, a.howMany, newTargetPosition, 0 );\n\n\t\t\treturn [ moveOp ];\n\t\t}\n\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedByMoveOperation( b );\n\t}\n\n\t// Case 2:\n\t//\n\t// Split is at a position where nodes were moved.\n\t//\n\t// This is a scenario described in `MoveOperation` x `SplitOperation` transformation but from the\n\t// \"split operation point of view\".\n\t//\n\tconst splitAtTarget = a.splitPosition.isEqual( b.targetPosition );\n\n\tif ( splitAtTarget && ( context.baRelation == 'insertAtSource' || context.abRelation == 'splitBefore' ) ) {\n\t\ta.howMany += b.howMany;\n\t\ta.splitPosition = a.splitPosition._getTransformedByDeletion( b.sourcePosition, b.howMany )!;\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\t\treturn [ a ];\n\t}\n\n\tif ( splitAtTarget && context.abRelation && context.abRelation.howMany ) {\n\t\tconst { howMany, offset } = context.abRelation;\n\n\t\ta.howMany += howMany;\n\t\ta.splitPosition = a.splitPosition.getShiftedBy( offset );\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 3:\n\t//\n\t// If the split position is inside the moved range, we need to shift the split position to a proper place.\n\t// The position cannot be moved together with moved range because that would result in splitting of an incorrect element.\n\t//\n\t// Characters `bc` should be moved to the second paragraph while split position is between them:\n\t// <paragraph>A[b|c]d</paragraph><paragraph>Xyz</paragraph>\n\t//\n\t// After move, new split position is incorrect:\n\t// <paragraph>Ad</paragraph><paragraph>Xb|cyz</paragraph>\n\t//\n\t// Correct split position:\n\t// <paragraph>A|d</paragraph><paragraph>Xbcyz</paragraph>\n\t//\n\t// After split:\n\t// <paragraph>A</paragraph><paragraph>d</paragraph><paragraph>Xbcyz</paragraph>\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.sourcePosition ) && rangeToMove.containsPosition( a.splitPosition ) ) {\n\t\tconst howManyRemoved = b.howMany - ( a.splitPosition.offset - b.sourcePosition.offset );\n\t\ta.howMany -= howManyRemoved;\n\n\t\tif ( a.splitPosition.hasSameParentAs( b.targetPosition ) && a.splitPosition.offset < b.targetPosition.offset ) {\n\t\t\ta.howMany += b.howMany;\n\t\t}\n\n\t\ta.splitPosition = b.sourcePosition.clone();\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\t\treturn [ a ];\n\t}\n\n\t// The default case.\n\t// Don't change `howMany` if move operation does not really move anything.\n\t//\n\tif ( !b.sourcePosition.isEqual( b.targetPosition ) ) {\n\t\tif ( a.splitPosition.hasSameParentAs( b.sourcePosition ) && a.splitPosition.offset <= b.sourcePosition.offset ) {\n\t\t\ta.howMany -= b.howMany;\n\t\t}\n\n\t\tif ( a.splitPosition.hasSameParentAs( b.targetPosition ) && a.splitPosition.offset < b.targetPosition.offset ) {\n\t\t\ta.howMany += b.howMany;\n\t\t}\n\t}\n\n\t// Change position stickiness to force a correct transformation.\n\ta.splitPosition.stickiness = 'toNone';\n\ta.splitPosition = a.splitPosition._getTransformedByMoveOperation( b );\n\ta.splitPosition.stickiness = 'toNext';\n\n\tif ( a.graveyardPosition ) {\n\t\ta.insertionPosition = a.insertionPosition._getTransformedByMoveOperation( b );\n\t} else {\n\t\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\t}\n\n\treturn [ a ];\n} );\n\nsetTransformation( SplitOperation, SplitOperation, ( a, b, context ) => {\n\t// Case 1:\n\t//\n\t// Split at the same position.\n\t//\n\t// If there already was a split at the same position as in `a` operation, it means that the intention\n\t// conveyed by `a` operation has already been fulfilled and `a` should not do anything (to avoid double split).\n\t//\n\t// However, there is a difference if these are new splits or splits created by undo. These have different\n\t// intentions. Also splits moving back different elements from graveyard have different intentions. They\n\t// are just different operations.\n\t//\n\t// So we cancel split operation only if it was really identical.\n\t//\n\t// Also, there is additional case, where split operations aren't identical and should not be cancelled, however the\n\t// default transformation is incorrect too.\n\t//\n\tif ( a.splitPosition.isEqual( b.splitPosition ) ) {\n\t\tif ( !a.graveyardPosition && !b.graveyardPosition ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\n\t\tif ( a.graveyardPosition && b.graveyardPosition && a.graveyardPosition.isEqual( b.graveyardPosition ) ) {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\n\t\t// Use context to know that the `a.splitPosition` should stay where it is.\n\t\t// This happens during undo when first a merge operation moved nodes to `a.splitPosition` and now `b` operation undoes that merge.\n\t\tif ( context.abRelation == 'splitBefore' ) {\n\t\t\t// Since split is at the same position, there are no nodes left to split.\n\t\t\ta.howMany = 0;\n\n\t\t\t// Note: there was `if ( a.graveyardPosition )` here but it was uncovered in tests and I couldn't find any scenarios for now.\n\t\t\t// That would have to be a `SplitOperation` that didn't come from undo but is transformed by operations that were undone.\n\t\t\t// It could happen if `context` is enabled in collaboration.\n\t\t\ta.graveyardPosition = a.graveyardPosition!._getTransformedBySplitOperation( b );\n\n\t\t\treturn [ a ];\n\t\t}\n\t}\n\n\t// Case 2:\n\t//\n\t// Same node is using to split different elements. This happens in undo when previously same element was merged to\n\t// two different elements. This is described in `MergeOperation` x `MergeOperation` transformation.\n\t//\n\t// In this case we will follow the same logic. We will assume that `insertionPosition` is same for both\n\t// split operations. This might not always be true but in the real cases that were experienced it was. After all,\n\t// if these splits are reverses of merge operations that were merging the same element, then the `insertionPosition`\n\t// should be same for both of those splits.\n\t//\n\t// Again, we will decide which operation is stronger by checking if split happens in graveyard or in non-graveyard root.\n\t//\n\tif ( a.graveyardPosition && b.graveyardPosition && a.graveyardPosition.isEqual( b.graveyardPosition ) ) {\n\t\tconst aInGraveyard = a.splitPosition.root.rootName == '$graveyard';\n\t\tconst bInGraveyard = b.splitPosition.root.rootName == '$graveyard';\n\n\t\t// If `aIsWeak` it means that `a` points to graveyard while `b` doesn't. Don't move nodes then.\n\t\tconst aIsWeak = aInGraveyard && !bInGraveyard;\n\n\t\t// If `bIsWeak` it means that `b` points to graveyard while `a` doesn't. Force moving nodes then.\n\t\tconst bIsWeak = bInGraveyard && !aInGraveyard;\n\n\t\t// Force move if `b` is weak or neither operation is weak but `a` is stronger through `context.aIsStrong`.\n\t\tconst forceMove = bIsWeak || ( !aIsWeak && context.aIsStrong );\n\n\t\tif ( forceMove ) {\n\t\t\tconst result = [];\n\n\t\t\t// First we need to move any nodes split by `b` back to where they were.\n\t\t\t// Do it only if `b` actually moved something.\n\t\t\tif ( b.howMany ) {\n\t\t\t\tresult.push( new MoveOperation( b.moveTargetPosition, b.howMany, b.splitPosition, 0 ) );\n\t\t\t}\n\n\t\t\t// Then we need to move nodes from `a` split position to their new element.\n\t\t\t// Do it only if `a` actually should move something.\n\t\t\tif ( a.howMany ) {\n\t\t\t\tresult.push( new MoveOperation( a.splitPosition, a.howMany, a.moveTargetPosition, 0 ) );\n\t\t\t}\n\n\t\t\treturn result;\n\t\t} else {\n\t\t\treturn [ new NoOperation( 0 ) ];\n\t\t}\n\t}\n\n\tif ( a.graveyardPosition ) {\n\t\ta.graveyardPosition = a.graveyardPosition._getTransformedBySplitOperation( b );\n\t}\n\n\t// Case 3:\n\t//\n\t// Position where operation `b` inserted a new node after split is the same as the operation `a` split position.\n\t// As in similar cases, there is ambiguity if the split should be before the new node (created by `b`) or after.\n\t//\n\tif ( a.splitPosition.isEqual( b.insertionPosition ) && context.abRelation == 'splitBefore' ) {\n\t\ta.howMany++;\n\n\t\treturn [ a ];\n\t}\n\n\t// Case 4:\n\t//\n\t// This is a mirror to the case 2. above.\n\t//\n\tif ( b.splitPosition.isEqual( a.insertionPosition ) && context.baRelation == 'splitBefore' ) {\n\t\tconst newPositionPath = b.insertionPosition.path.slice();\n\t\tnewPositionPath.push( 0 );\n\n\t\tconst newPosition = new Position( b.insertionPosition.root, newPositionPath );\n\t\tconst moveOp = new MoveOperation( a.insertionPosition, 1, newPosition, 0 );\n\n\t\treturn [ a, moveOp ];\n\t}\n\n\t// The default case.\n\t//\n\tif ( a.splitPosition.hasSameParentAs( b.splitPosition ) && a.splitPosition.offset < b.splitPosition.offset ) {\n\t\ta.howMany -= b.howMany;\n\t}\n\n\ta.splitPosition = a.splitPosition._getTransformedBySplitOperation( b );\n\ta.insertionPosition = SplitOperation.getInsertionPosition( a.splitPosition );\n\n\treturn [ a ];\n} );\n\n/**\n * Checks whether `MoveOperation` `targetPosition` is inside a node from the moved range of the other `MoveOperation`.\n */\nfunction _moveTargetIntoMovedRange( a: MoveOperation, b: MoveOperation ) {\n\treturn a.targetPosition._getTransformedByDeletion( b.sourcePosition, b.howMany ) === null;\n}\n\n/**\n * Helper function for `MoveOperation` x `MoveOperation` transformation. Converts given ranges and target position to\n * move operations and returns them.\n *\n * Ranges and target position will be transformed on-the-fly when generating operations.\n *\n * Given `ranges` should be in the order of how they were in the original transformed operation.\n *\n * Given `targetPosition` is the target position of the first range from `ranges`.\n */\nfunction _makeMoveOperationsFromRanges( ranges: Array<Range>, targetPosition: Position ) {\n\t// At this moment we have some ranges and a target position, to which those ranges should be moved.\n\t// Order in `ranges` array is the go-to order of after transformation.\n\t//\n\t// We are almost done. We have `ranges` and `targetPosition` to make operations from.\n\t// Unfortunately, those operations may affect each other. Precisely, first operation after move\n\t// may affect source range and target position of second and third operation. Same with second\n\t// operation affecting third.\n\t//\n\t// We need to fix those source ranges and target positions once again, before converting `ranges` to operations.\n\tconst operations = [];\n\n\t// Keep in mind that nothing will be transformed if there is just one range in `ranges`.\n\tfor ( let i = 0; i < ranges.length; i++ ) {\n\t\t// Create new operation out of a range and target position.\n\t\tconst range = ranges[ i ];\n\t\tconst op = new MoveOperation(\n\t\t\trange.start,\n\t\t\trange.end.offset - range.start.offset,\n\t\t\ttargetPosition,\n\t\t\t0\n\t\t);\n\n\t\toperations.push( op );\n\n\t\t// Transform other ranges by the generated operation.\n\t\tfor ( let j = i + 1; j < ranges.length; j++ ) {\n\t\t\t// All ranges in `ranges` array should be:\n\t\t\t//\n\t\t\t// * non-intersecting (these are part of original operation source range), and\n\t\t\t// * `targetPosition` does not target into them (opposite would mean that transformed operation targets \"inside itself\").\n\t\t\t//\n\t\t\t// This means that the transformation will be \"clean\" and always return one result.\n\t\t\tranges[ j ] = ranges[ j ]._getTransformedByMove( op.sourcePosition, op.targetPosition, op.howMany )[ 0 ];\n\t\t}\n\n\t\ttargetPosition = targetPosition._getTransformedByMove( op.sourcePosition, op.targetPosition, op.howMany );\n\t}\n\n\treturn operations;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/liveposition\n */\n\nimport Position, { type PositionOffset, type PositionStickiness } from './position';\n\nimport type { ModelApplyOperationEvent } from './model';\nimport type DocumentFragment from './documentfragment';\nimport type Item from './item';\nimport type Operation from './operation/operation';\nimport type RootElement from './rootelement';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * `LivePosition` is a type of {@link module:engine/model/position~Position Position}\n * that updates itself as {@link module:engine/model/document~Document document}\n * is changed through operations. It may be used as a bookmark.\n *\n * **Note:** Contrary to {@link module:engine/model/position~Position}, `LivePosition` works only in roots that are\n * {@link module:engine/model/rootelement~RootElement}.\n * If {@link module:engine/model/documentfragment~DocumentFragment} is passed, error will be thrown.\n *\n * **Note:** Be very careful when dealing with `LivePosition`. Each `LivePosition` instance bind events that might\n * have to be unbound.\n * Use {@link module:engine/model/liveposition~LivePosition#detach} whenever you don't need `LivePosition` anymore.\n */\nexport default class LivePosition extends EmitterMixin( Position ) {\n\t/**\n\t * Root of the position path.\n\t */\n\tdeclare public readonly root: RootElement;\n\n\t/**\n\t * Creates a live position.\n\t *\n\t * @see module:engine/model/position~Position\n\t */\n\tconstructor( root: RootElement, path: Array<number>, stickiness: PositionStickiness = 'toNone' ) {\n\t\tsuper( root, path, stickiness );\n\n\t\tif ( !this.root.is( 'rootElement' ) ) {\n\t\t\t/**\n\t\t\t * LivePosition's root has to be an instance of RootElement.\n\t\t\t *\n\t\t\t * @error model-liveposition-root-not-rootelement\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-liveposition-root-not-rootelement', root );\n\t\t}\n\n\t\tbindWithDocument.call( this );\n\t}\n\n\t/**\n\t * Unbinds all events previously bound by `LivePosition`. Use it whenever you don't need `LivePosition` instance\n\t * anymore (i.e. when leaving scope in which it was declared or before re-assigning variable that was\n\t * referring to it).\n\t */\n\tpublic detach(): void {\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/position~Position position instance}, which is equal to this live position.\n\t */\n\tpublic toPosition(): Position {\n\t\treturn new Position( this.root, this.path.slice(), this.stickiness );\n\t}\n\n\t/**\n\t * Creates a `LivePosition` instance that is equal to position.\n\t */\n\tpublic static fromPosition( position: Position, stickiness?: PositionStickiness ): LivePosition {\n\t\treturn new this( position.root as RootElement, position.path.slice(), stickiness ? stickiness : position.stickiness );\n\t}\n\n\t/**\n\t * @internal\n\t * @see module:engine/model/position~Position._createAfter\n\t */\n\tdeclare public static readonly _createAfter: ( item: Item | DocumentFragment, stickiness?: PositionStickiness ) => LivePosition;\n\n\t/**\n\t * @internal\n\t * @see module:engine/model/position~Position._createBefore\n\t */\n\tdeclare public static readonly _createBefore: ( item: Item | DocumentFragment, stickiness?: PositionStickiness ) => LivePosition;\n\n\t/**\n\t * @internal\n\t * @see module:engine/model/position~Position._createAt\n\t */\n\tdeclare public static readonly _createAt: (\n\t\titemOrPosition: Item | Position | DocumentFragment,\n\t\toffset?: PositionOffset,\n\t\tstickiness?: PositionStickiness\n\t) => LivePosition;\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nLivePosition.prototype.is = function( type: string ): boolean {\n\treturn type === 'livePosition' || type === 'model:livePosition' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype == 'position' || type === 'model:position';\n};\n\n/**\n * Binds this `LivePosition` to the {@link module:engine/model/document~Document document} that owns\n * this position's {@link module:engine/model/position~Position#root root}.\n */\nfunction bindWithDocument( this: LivePosition ) {\n\tthis.listenTo<ModelApplyOperationEvent>(\n\t\tthis.root.document!.model,\n\t\t'applyOperation',\n\t\t( event, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( !operation.isDocumentOperation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\ttransform.call( this, operation );\n\t\t},\n\t\t{ priority: 'low' }\n\t);\n}\n\n/**\n * Updates this position accordingly to the updates applied to the model. Bases on change events.\n */\nfunction transform( this: LivePosition, operation: Operation ) {\n\tconst result = this.getTransformedByOperation( operation );\n\n\tif ( !this.isEqual( result ) ) {\n\t\tconst oldPosition = this.toPosition();\n\n\t\t( this as any ).path = result.path;\n\t\t( this as any ).root = result.root;\n\n\t\tthis.fire<LivePositionChangeEvent>( 'change', oldPosition );\n\t}\n}\n\n/**\n * Fired when `LivePosition` instance is changed due to changes on {@link module:engine/model/document~Document}.\n *\n * @eventName ~LivePosition#change\n * @param oldPosition Position equal to this live position before it got changed.\n */\nexport type LivePositionChangeEvent = {\n\tname: 'change';\n\targs: [ oldPosition: Position ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/batch\n */\n\nimport { logWarning } from '@ckeditor/ckeditor5-utils';\nimport type Operation from './operation/operation';\n\n/**\n * A batch instance groups model changes ({@link module:engine/model/operation/operation~Operation operations}). All operations\n * grouped in a single batch can be reverted together, so you can also think about a batch as of a single undo step. If you want\n * to extend a given undo step, you can add more changes to the batch using {@link module:engine/model/model~Model#enqueueChange}:\n *\n * ```ts\n * model.enqueueChange( batch, writer => {\n * \twriter.insertText( 'foo', paragraph, 'end' );\n * } );\n * ```\n *\n * @see module:engine/model/model~Model#enqueueChange\n * @see module:engine/model/model~Model#change\n */\nexport default class Batch {\n\t/**\n\t * An array of operations that compose this batch.\n\t */\n\tpublic readonly operations: Array<Operation>;\n\n\t/**\n\t * Whether the batch can be undone through the undo feature.\n\t */\n\tpublic readonly isUndoable: boolean;\n\n\t/**\n\t * Whether the batch includes operations created locally (`true`) or operations created on other, remote editors (`false`).\n\t */\n\tpublic readonly isLocal: boolean;\n\n\t/**\n\t * Whether the batch was created by the undo feature and undoes other operations.\n\t */\n\tpublic readonly isUndo: boolean;\n\n\t/**\n\t * Whether the batch includes operations connected with typing.\n\t */\n\tpublic readonly isTyping: boolean;\n\n\t/**\n\t * Creates a batch instance.\n\t *\n\t * @see module:engine/model/model~Model#enqueueChange\n\t * @see module:engine/model/model~Model#change\n\t * @param type A set of flags that specify the type of the batch. Batch type can alter how some of the features work\n\t * when encountering a given `Batch` instance (for example, when a feature listens to applied operations).\n\t */\n\tconstructor( type: BatchType = {} ) {\n\t\tif ( typeof type === 'string' ) {\n\t\t\ttype = type === 'transparent' ? { isUndoable: false } : {};\n\n\t\t\t/**\n\t\t\t * The string value for a `type` property of the `Batch` constructor has been deprecated and will be removed in the near future.\n\t\t\t * Please refer to the {@link module:engine/model/batch~Batch#constructor `Batch` constructor API documentation} for more\n\t\t\t * information.\n\t\t\t *\n\t\t\t * @error batch-constructor-deprecated-string-type\n\t\t\t */\n\t\t\tlogWarning( 'batch-constructor-deprecated-string-type' );\n\t\t}\n\n\t\tconst { isUndoable = true, isLocal = true, isUndo = false, isTyping = false } = type;\n\n\t\tthis.operations = [];\n\t\tthis.isUndoable = isUndoable;\n\t\tthis.isLocal = isLocal;\n\t\tthis.isUndo = isUndo;\n\t\tthis.isTyping = isTyping;\n\t}\n\n\t/**\n\t * The type of the batch.\n\t *\n\t * **This property has been deprecated and is always set to the `'default'` value.**\n\t *\n\t * It can be one of the following values:\n\t * * `'default'` &ndash; All \"normal\" batches. This is the most commonly used type.\n\t * * `'transparent'` &ndash; A batch that should be ignored by other features, i.e. an initial batch or collaborative editing\n\t * changes.\n\t *\n\t * @deprecated\n\t */\n\tpublic get type(): 'default' {\n\t\t/**\n\t\t * The {@link module:engine/model/batch~Batch#type `Batch#type` } property has been deprecated and will be removed in the near\n\t\t * future. Use `Batch#isLocal`, `Batch#isUndoable`, `Batch#isUndo` and `Batch#isTyping` instead.\n\t\t *\n\t\t * @error batch-type-deprecated\n\t\t */\n\t\tlogWarning( 'batch-type-deprecated' );\n\n\t\treturn 'default';\n\t}\n\n\t/**\n\t * Returns the base version of this batch, which is equal to the base version of the first operation in the batch.\n\t * If there are no operations in the batch or neither operation has the base version set, it returns `null`.\n\t */\n\tpublic get baseVersion(): number | null {\n\t\tfor ( const op of this.operations ) {\n\t\t\tif ( op.baseVersion !== null ) {\n\t\t\t\treturn op.baseVersion;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Adds an operation to the batch instance.\n\t *\n\t * @param operation An operation to add.\n\t * @returns The added operation.\n\t */\n\tpublic addOperation( operation: Operation ): Operation {\n\t\toperation.batch = this;\n\t\tthis.operations.push( operation );\n\n\t\treturn operation;\n\t}\n}\n\n/**\n * A set of flags that specify the type of the batch. Batch type can alter how some of the features work\n * when encountering a given `Batch` instance (for example, when a feature listens to applied operations).\n */\nexport interface BatchType {\n\n\t/**\n\t * Whether a batch can be undone through undo feature.\n\t *\n\t * @default true\n\t */\n\tisUndoable?: boolean;\n\n\t/**\n\t * Whether a batch includes operations created locally (`true`) or operations created on\n\t * other, remote editors (`false`).\n\t *\n\t * @default true\n\t */\n\tisLocal?: boolean;\n\n\t/**\n\t * Whether a batch was created by the undo feature and undoes other operations.\n\t *\n\t * @default false\n\t */\n\tisUndo?: boolean;\n\n\t/**\n\t * Whether a batch includes operations connected with a typing action.\n\t *\n\t * @default false\n\t */\n\tisTyping?: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/differ\n */\n\nimport Position from './position';\nimport Range from './range';\n\nimport type { default as MarkerCollection, MarkerData } from './markercollection';\nimport type AttributeOperation from './operation/attributeoperation';\nimport type DocumentFragment from './documentfragment';\nimport type Element from './element';\nimport type InsertOperation from './operation/insertoperation';\nimport type Item from './item';\nimport type MergeOperation from './operation/mergeoperation';\nimport type MoveOperation from './operation/moveoperation';\nimport type Node from './node';\nimport type Operation from './operation/operation';\nimport type RenameOperation from './operation/renameoperation';\nimport type SplitOperation from './operation/splitoperation';\nimport type RootOperation from './operation/rootoperation';\nimport type RootAttributeOperation from './operation/rootattributeoperation';\n\n/**\n * Calculates the difference between two model states.\n *\n * Receives operations that are to be applied on the model document. Marks parts of the model document tree which\n * are changed and saves the state of these elements before the change. Then, it compares saved elements with the\n * changed elements, after all changes are applied on the model document. Calculates the diff between saved\n * elements and new ones and returns a change set.\n */\nexport default class Differ {\n\t/**\n\t * Reference to the model's marker collection.\n\t */\n\tprivate readonly _markerCollection: MarkerCollection;\n\n\t/**\n\t * A map that stores changes that happened in a given element.\n\t *\n\t * The keys of the map are references to the model elements.\n\t * The values of the map are arrays with changes that were done on this element.\n\t */\n\tprivate readonly _changesInElement: Map<Element | DocumentFragment, Array<ChangeItem>> = new Map();\n\n\t/**\n\t * A map that stores \"element's children snapshots\". A snapshot is representing children of a given element before\n\t * the first change was applied on that element. Snapshot items are objects with two properties: `name`,\n\t * containing the element name (or `'$text'` for a text node) and `attributes` which is a map of the node's attributes.\n\t */\n\tprivate readonly _elementSnapshots: Map<Element | DocumentFragment, Array<{ name: string; attributes: Map<string, unknown> }>>\n\t\t= new Map();\n\n\t/**\n\t * A map that stores all changed markers.\n\t *\n\t * The keys of the map are marker names.\n\t * The values of the map are objects with the following properties:\n\t * - `oldMarkerData`,\n\t * - `newMarkerData`.\n\t */\n\tprivate readonly _changedMarkers: Map<string, { newMarkerData: MarkerData; oldMarkerData: MarkerData }> = new Map();\n\n\t/**\n\t * A map that stores all roots that have been changed.\n\t *\n\t * The keys are the names of the roots while value represents the changes.\n\t */\n\tprivate readonly _changedRoots: Map<string, DiffItemRoot> = new Map();\n\n\t/**\n\t * Stores the number of changes that were processed. Used to order the changes chronologically. It is important\n\t * when changes are sorted.\n\t */\n\tprivate _changeCount: number = 0;\n\n\t/**\n\t * For efficiency purposes, `Differ` stores the change set returned by the differ after {@link #getChanges} call.\n\t * Cache is reset each time a new operation is buffered. If the cache has not been reset, {@link #getChanges} will\n\t * return the cached value instead of calculating it again.\n\t *\n\t * This property stores those changes that did not take place in graveyard root.\n\t */\n\tprivate _cachedChanges: Array<DiffItem> | null = null;\n\n\t/**\n\t * For efficiency purposes, `Differ` stores the change set returned by the differ after the {@link #getChanges} call.\n\t * The cache is reset each time a new operation is buffered. If the cache has not been reset, {@link #getChanges} will\n\t * return the cached value instead of calculating it again.\n\t *\n\t * This property stores all changes evaluated by `Differ`, including those that took place in the graveyard.\n\t */\n\tprivate _cachedChangesWithGraveyard: Array<DiffItem> | null = null;\n\n\t/**\n\t * Set of model items that were marked to get refreshed in {@link #_refreshItem}.\n\t */\n\tprivate _refreshedItems: Set<Item> = new Set();\n\n\t/**\n\t * Creates a `Differ` instance.\n\t *\n\t * @param markerCollection Model's marker collection.\n\t */\n\tconstructor( markerCollection: MarkerCollection ) {\n\t\tthis._markerCollection = markerCollection;\n\t}\n\n\t/**\n\t * Informs whether there are any changes buffered in `Differ`.\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this._changesInElement.size == 0 && this._changedMarkers.size == 0 && this._changedRoots.size == 0;\n\t}\n\n\t/**\n\t * Buffers the given operation. An operation has to be buffered before it is executed.\n\t *\n\t * @param operationToBuffer An operation to buffer.\n\t */\n\tpublic bufferOperation( operationToBuffer: Operation ): void {\n\t\t// Below we take an operation, check its type, then use its parameters in marking (private) methods.\n\t\t// The general rule is to not mark elements inside inserted element. All inserted elements are re-rendered.\n\t\t// Marking changes in them would cause a \"double\" changing then.\n\t\t//\n\t\tconst operation = operationToBuffer as (\n\t\t\tInsertOperation |\n\t\t\tAttributeOperation |\n\t\t\tMoveOperation |\n\t\t\tRenameOperation |\n\t\t\tSplitOperation |\n\t\t\tMergeOperation |\n\t\t\tRootOperation |\n\t\t\tRootAttributeOperation\n\t\t);\n\n\t\tswitch ( operation.type ) {\n\t\t\tcase 'insert': {\n\t\t\t\tif ( this._isInInsertedElement( operation.position.parent ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis._markInsert( operation.position.parent, operation.position.offset, operation.nodes.maxOffset );\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'addAttribute':\n\t\t\tcase 'removeAttribute':\n\t\t\tcase 'changeAttribute': {\n\t\t\t\tfor ( const item of operation.range.getItems( { shallow: true } ) ) {\n\t\t\t\t\tif ( this._isInInsertedElement( item.parent! ) ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tthis._markAttribute( item );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'remove':\n\t\t\tcase 'move':\n\t\t\tcase 'reinsert': {\n\t\t\t\t// When range is moved to the same position then not mark it as a change.\n\t\t\t\t// See: https://github.com/ckeditor/ckeditor5-engine/issues/1664.\n\t\t\t\tif (\n\t\t\t\t\toperation.sourcePosition.isEqual( operation.targetPosition ) ||\n\t\t\t\t\toperation.sourcePosition.getShiftedBy( operation.howMany ).isEqual( operation.targetPosition )\n\t\t\t\t) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst sourceParentInserted = this._isInInsertedElement( operation.sourcePosition.parent );\n\t\t\t\tconst targetParentInserted = this._isInInsertedElement( operation.targetPosition.parent );\n\n\t\t\t\tif ( !sourceParentInserted ) {\n\t\t\t\t\tthis._markRemove( operation.sourcePosition.parent, operation.sourcePosition.offset, operation.howMany );\n\t\t\t\t}\n\n\t\t\t\tif ( !targetParentInserted ) {\n\t\t\t\t\tthis._markInsert( operation.targetPosition.parent, operation.getMovedRangeStart().offset, operation.howMany );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'rename': {\n\t\t\t\tif ( this._isInInsertedElement( operation.position.parent ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis._markRemove( operation.position.parent, operation.position.offset, 1 );\n\t\t\t\tthis._markInsert( operation.position.parent, operation.position.offset, 1 );\n\n\t\t\t\tconst range = Range._createFromPositionAndShift( operation.position, 1 );\n\n\t\t\t\tfor ( const marker of this._markerCollection.getMarkersIntersectingRange( range ) ) {\n\t\t\t\t\tconst markerData = marker.getData();\n\n\t\t\t\t\tthis.bufferMarkerChange( marker.name, markerData, markerData );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'split': {\n\t\t\t\tconst splitElement = operation.splitPosition.parent;\n\n\t\t\t\t// Mark that children of the split element were removed.\n\t\t\t\tif ( !this._isInInsertedElement( splitElement ) ) {\n\t\t\t\t\tthis._markRemove( splitElement, operation.splitPosition.offset, operation.howMany );\n\t\t\t\t}\n\n\t\t\t\t// Mark that the new element (split copy) was inserted.\n\t\t\t\tif ( !this._isInInsertedElement( operation.insertionPosition.parent ) ) {\n\t\t\t\t\tthis._markInsert( operation.insertionPosition.parent, operation.insertionPosition.offset, 1 );\n\t\t\t\t}\n\n\t\t\t\t// If the split took the element from the graveyard, mark that the element from the graveyard was removed.\n\t\t\t\tif ( operation.graveyardPosition ) {\n\t\t\t\t\tthis._markRemove( operation.graveyardPosition.parent, operation.graveyardPosition.offset, 1 );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'merge': {\n\t\t\t\t// Mark that the merged element was removed.\n\t\t\t\tconst mergedElement = operation.sourcePosition.parent;\n\n\t\t\t\tif ( !this._isInInsertedElement( mergedElement.parent! ) ) {\n\t\t\t\t\tthis._markRemove( mergedElement.parent!, ( mergedElement as any ).startOffset, 1 );\n\t\t\t\t}\n\n\t\t\t\t// Mark that the merged element was inserted into graveyard.\n\t\t\t\tconst graveyardParent = operation.graveyardPosition.parent;\n\n\t\t\t\tthis._markInsert( graveyardParent, operation.graveyardPosition.offset, 1 );\n\n\t\t\t\t// Mark that children of merged element were inserted at new parent.\n\t\t\t\tconst mergedIntoElement = operation.targetPosition.parent;\n\n\t\t\t\tif ( !this._isInInsertedElement( mergedIntoElement ) ) {\n\t\t\t\t\tthis._markInsert( mergedIntoElement, operation.targetPosition.offset, mergedElement.maxOffset );\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'detachRoot':\n\t\t\tcase 'addRoot': {\n\t\t\t\tthis._bufferRootStateChange( operation.rootName, operation.isAdd );\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tcase 'addRootAttribute':\n\t\t\tcase 'removeRootAttribute':\n\t\t\tcase 'changeRootAttribute': {\n\t\t\t\tconst rootName = operation.root.rootName;\n\n\t\t\t\tthis._bufferRootAttributeChange( rootName, operation.key, operation.oldValue, operation.newValue );\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\t// Clear cache after each buffered operation as it is no longer valid.\n\t\tthis._cachedChanges = null;\n\t}\n\n\t/**\n\t * Buffers a marker change.\n\t *\n\t * @param markerName The name of the marker that changed.\n\t * @param oldMarkerData Marker data before the change.\n\t * @param newMarkerData Marker data after the change.\n\t */\n\tpublic bufferMarkerChange( markerName: string, oldMarkerData: MarkerData, newMarkerData: MarkerData ): void {\n\t\tconst buffered = this._changedMarkers.get( markerName );\n\n\t\tif ( !buffered ) {\n\t\t\tthis._changedMarkers.set( markerName, {\n\t\t\t\tnewMarkerData,\n\t\t\t\toldMarkerData\n\t\t\t} );\n\t\t} else {\n\t\t\tbuffered.newMarkerData = newMarkerData;\n\n\t\t\tif ( buffered.oldMarkerData.range == null && newMarkerData.range == null ) {\n\t\t\t\t// The marker is going to be removed (`newMarkerData.range == null`) but it did not exist before the first buffered change\n\t\t\t\t// (`buffered.oldMarkerData.range == null`). In this case, do not keep the marker in buffer at all.\n\t\t\t\tthis._changedMarkers.delete( markerName );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns all markers that should be removed as a result of buffered changes.\n\t *\n\t * @returns Markers to remove. Each array item is an object containing the `name` and `range` properties.\n\t */\n\tpublic getMarkersToRemove(): Array<{ name: string; range: Range }> {\n\t\tconst result = [];\n\n\t\tfor ( const [ name, change ] of this._changedMarkers ) {\n\t\t\tif ( change.oldMarkerData.range != null ) {\n\t\t\t\tresult.push( { name, range: change.oldMarkerData.range } );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns all markers which should be added as a result of buffered changes.\n\t *\n\t * @returns Markers to add. Each array item is an object containing the `name` and `range` properties.\n\t */\n\tpublic getMarkersToAdd(): Array<{ name: string; range: Range }> {\n\t\tconst result = [];\n\n\t\tfor ( const [ name, change ] of this._changedMarkers ) {\n\t\t\tif ( change.newMarkerData.range != null ) {\n\t\t\t\tresult.push( { name, range: change.newMarkerData.range } );\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n\n\t/**\n\t * Returns all markers which changed.\n\t */\n\tpublic getChangedMarkers(): Array<{\n\t\tname: string;\n\t\tdata: {\n\t\t\toldRange: Range | null;\n\t\t\tnewRange: Range | null;\n\t\t};\n\t}> {\n\t\treturn Array.from( this._changedMarkers ).map( ( [ name, change ] ) => (\n\t\t\t{\n\t\t\t\tname,\n\t\t\t\tdata: {\n\t\t\t\t\toldRange: change.oldMarkerData.range,\n\t\t\t\t\tnewRange: change.newMarkerData.range\n\t\t\t\t}\n\t\t\t}\n\t\t) );\n\t}\n\n\t/**\n\t * Checks whether some of the buffered changes affect the editor data.\n\t *\n\t * Types of changes which affect the editor data:\n\t *\n\t * * model structure changes,\n\t * * attribute changes,\n\t * * a root is added or detached,\n\t * * changes of markers which were defined as `affectsData`,\n\t * * changes of markers' `affectsData` property.\n\t */\n\tpublic hasDataChanges(): boolean {\n\t\tif ( this._changesInElement.size > 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif ( this._changedRoots.size > 0 ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tfor ( const { newMarkerData, oldMarkerData } of this._changedMarkers.values() ) {\n\t\t\tif ( newMarkerData.affectsData !== oldMarkerData.affectsData ) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tif ( newMarkerData.affectsData ) {\n\t\t\t\tconst markerAdded = newMarkerData.range && !oldMarkerData.range;\n\t\t\t\tconst markerRemoved = !newMarkerData.range && oldMarkerData.range;\n\t\t\t\tconst markerChanged = newMarkerData.range && oldMarkerData.range && !newMarkerData.range.isEqual( oldMarkerData.range );\n\n\t\t\t\tif ( markerAdded || markerRemoved || markerChanged ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Calculates the diff between the old model tree state (the state before the first buffered operations since the last {@link #reset}\n\t * call) and the new model tree state (actual one). It should be called after all buffered operations are executed.\n\t *\n\t * The diff set is returned as an array of {@link module:engine/model/differ~DiffItem diff items}, each describing a change done\n\t * on the model. The items are sorted by the position on which the change happened. If a position\n\t * {@link module:engine/model/position~Position#isBefore is before} another one, it will be on an earlier index in the diff set.\n\t *\n\t * **Note**: Elements inside inserted element will not have a separate diff item, only the top most element change will be reported.\n\t *\n\t * Because calculating the diff is a costly operation, the result is cached. If no new operation was buffered since the\n\t * previous {@link #getChanges} call, the next call will return the cached value.\n\t *\n\t * @param options Additional options.\n\t * @param options.includeChangesInGraveyard If set to `true`, also changes that happened\n\t * in the graveyard root will be returned. By default, changes in the graveyard root are not returned.\n\t * @returns Diff between the old and the new model tree state.\n\t */\n\tpublic getChanges( options: { includeChangesInGraveyard?: boolean } = {} ): Array<DiffItem> {\n\t\t// If there are cached changes, just return them instead of calculating changes again.\n\t\tif ( this._cachedChanges ) {\n\t\t\tif ( options.includeChangesInGraveyard ) {\n\t\t\t\treturn this._cachedChangesWithGraveyard!.slice();\n\t\t\t} else {\n\t\t\t\treturn this._cachedChanges.slice();\n\t\t\t}\n\t\t}\n\n\t\t// Will contain returned results.\n\t\tlet diffSet: Array<DiffItem & DiffItemInternal> = [];\n\n\t\t// Check all changed elements.\n\t\tfor ( const element of this._changesInElement.keys() ) {\n\t\t\t// Get changes for this element and sort them.\n\t\t\tconst changes = this._changesInElement.get( element )!.sort( ( a, b ) => {\n\t\t\t\tif ( a.offset === b.offset ) {\n\t\t\t\t\tif ( a.type != b.type ) {\n\t\t\t\t\t\t// If there are multiple changes at the same position, \"remove\" change should be first.\n\t\t\t\t\t\t// If the order is different, for example, we would first add some nodes and then removed them\n\t\t\t\t\t\t// (instead of the nodes that we should remove).\n\t\t\t\t\t\treturn a.type == 'remove' ? -1 : 1;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn 0;\n\t\t\t\t}\n\n\t\t\t\treturn a.offset < b.offset ? -1 : 1;\n\t\t\t} );\n\n\t\t\t// Get children of this element before any change was applied on it.\n\t\t\tconst snapshotChildren = this._elementSnapshots.get( element )!;\n\t\t\t// Get snapshot of current element's children.\n\t\t\tconst elementChildren = _getChildrenSnapshot( element.getChildren() );\n\n\t\t\t// Generate actions basing on changes done on element.\n\t\t\tconst actions = _generateActionsFromChanges( snapshotChildren.length, changes );\n\n\t\t\tlet i = 0; // Iterator in `elementChildren` array -- iterates through current children of element.\n\t\t\tlet j = 0; // Iterator in `snapshotChildren` array -- iterates through old children of element.\n\n\t\t\t// Process every action.\n\t\t\tfor ( const action of actions ) {\n\t\t\t\tif ( action === 'i' ) {\n\t\t\t\t\t// Generate diff item for this element and insert it into the diff set.\n\t\t\t\t\tdiffSet.push( this._getInsertDiff( element, i, elementChildren[ i ] ) );\n\n\t\t\t\t\ti++;\n\t\t\t\t} else if ( action === 'r' ) {\n\t\t\t\t\t// Generate diff item for this element and insert it into the diff set.\n\t\t\t\t\tdiffSet.push( this._getRemoveDiff( element, i, snapshotChildren[ j ] ) );\n\n\t\t\t\t\tj++;\n\t\t\t\t} else if ( action === 'a' ) {\n\t\t\t\t\t// Take attributes from saved and current children.\n\t\t\t\t\tconst elementAttributes = elementChildren[ i ].attributes;\n\t\t\t\t\tconst snapshotAttributes = snapshotChildren[ j ].attributes;\n\t\t\t\t\tlet range;\n\n\t\t\t\t\tif ( elementChildren[ i ].name == '$text' ) {\n\t\t\t\t\t\trange = new Range( Position._createAt( element, i ), Position._createAt( element, i + 1 ) );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tconst index = element.offsetToIndex( i );\n\t\t\t\t\t\trange = new Range( Position._createAt( element, i ), Position._createAt( element.getChild( index )!, 0 ) );\n\t\t\t\t\t}\n\n\t\t\t\t\t// Generate diff items for this change (there might be multiple attributes changed and\n\t\t\t\t\t// there is a single diff for each of them) and insert them into the diff set.\n\t\t\t\t\tdiffSet.push( ...this._getAttributesDiff( range, snapshotAttributes, elementAttributes ) );\n\n\t\t\t\t\ti++;\n\t\t\t\t\tj++;\n\t\t\t\t} else {\n\t\t\t\t\t// `action` is 'equal'. Child not changed.\n\t\t\t\t\ti++;\n\t\t\t\t\tj++;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Then, sort the changes by the position (change at position before other changes is first).\n\t\tdiffSet.sort( ( a, b ) => {\n\t\t\t// If the change is in different root, we don't care much, but we'd like to have all changes in given\n\t\t\t// root \"together\" in the array. So let's just sort them by the root name. It does not matter which root\n\t\t\t// will be processed first.\n\t\t\tif ( a.position!.root != b.position!.root ) {\n\t\t\t\treturn a.position!.root.rootName! < b.position!.root.rootName! ? -1 : 1;\n\t\t\t}\n\n\t\t\t// If change happens at the same position...\n\t\t\tif ( a.position!.isEqual( b.position! ) ) {\n\t\t\t\t// Keep chronological order of operations.\n\t\t\t\treturn a.changeCount! - b.changeCount!;\n\t\t\t}\n\n\t\t\t// If positions differ, position \"on the left\" should be earlier in the result.\n\t\t\treturn a.position!.isBefore( b.position! ) ? -1 : 1;\n\t\t} );\n\n\t\t// Glue together multiple changes (mostly on text nodes).\n\t\tfor ( let i = 1, prevIndex = 0; i < diffSet.length; i++ ) {\n\t\t\tconst prevDiff = diffSet[ prevIndex ];\n\t\t\tconst thisDiff = diffSet[ i ];\n\n\t\t\t// Glue remove changes if they happen on text on same position.\n\t\t\tconst isConsecutiveTextRemove =\n\t\t\t\tprevDiff.type == 'remove' && thisDiff.type == 'remove' &&\n\t\t\t\tprevDiff.name == '$text' && thisDiff.name == '$text' &&\n\t\t\t\tprevDiff.position.isEqual( thisDiff.position );\n\n\t\t\t// Glue insert changes if they happen on text on consecutive fragments.\n\t\t\tconst isConsecutiveTextAdd =\n\t\t\t\tprevDiff.type == 'insert' && thisDiff.type == 'insert' &&\n\t\t\t\tprevDiff.name == '$text' && thisDiff.name == '$text' &&\n\t\t\t\tprevDiff.position.parent == thisDiff.position.parent &&\n\t\t\t\tprevDiff.position.offset + prevDiff.length == thisDiff.position.offset;\n\n\t\t\t// Glue attribute changes if they happen on consecutive fragments and have same key, old value and new value.\n\t\t\tconst isConsecutiveAttributeChange =\n\t\t\t\tprevDiff.type == 'attribute' && thisDiff.type == 'attribute' &&\n\t\t\t\tprevDiff.position!.parent == thisDiff.position!.parent &&\n\t\t\t\tprevDiff.range.isFlat && thisDiff.range.isFlat &&\n\t\t\t\t( prevDiff.position!.offset + prevDiff.length! ) == thisDiff.position!.offset &&\n\t\t\t\tprevDiff.attributeKey == thisDiff.attributeKey &&\n\t\t\t\tprevDiff.attributeOldValue == thisDiff.attributeOldValue &&\n\t\t\t\tprevDiff.attributeNewValue == thisDiff.attributeNewValue;\n\n\t\t\tif ( isConsecutiveTextRemove || isConsecutiveTextAdd || isConsecutiveAttributeChange ) {\n\t\t\t\tprevDiff.length!++;\n\n\t\t\t\tif ( isConsecutiveAttributeChange ) {\n\t\t\t\t\t( prevDiff.range as any ).end = prevDiff.range.end.getShiftedBy( 1 );\n\t\t\t\t}\n\n\t\t\t\tdiffSet[ i ] = null as any;\n\t\t\t} else {\n\t\t\t\tprevIndex = i;\n\t\t\t}\n\t\t}\n\n\t\tdiffSet = diffSet.filter( v => v );\n\n\t\t// Remove `changeCount` property from diff items. It is used only for sorting and is internal thing.\n\t\tfor ( const item of diffSet ) {\n\t\t\tdelete item.changeCount;\n\n\t\t\tif ( item.type == 'attribute' ) {\n\t\t\t\tdelete item.position;\n\t\t\t\tdelete item.length;\n\t\t\t}\n\t\t}\n\n\t\tthis._changeCount = 0;\n\n\t\t// Cache changes.\n\t\tthis._cachedChangesWithGraveyard = diffSet;\n\t\tthis._cachedChanges = diffSet.filter( _changesInGraveyardFilter );\n\n\t\tif ( options.includeChangesInGraveyard ) {\n\t\t\treturn this._cachedChangesWithGraveyard.slice();\n\t\t} else {\n\t\t\treturn this._cachedChanges.slice();\n\t\t}\n\t}\n\n\t/**\n\t * Returns all roots that have changed (either were attached, or detached, or their attributes changed).\n\t *\n\t * @returns Diff between the old and the new roots state.\n\t */\n\tpublic getChangedRoots(): Array<DiffItemRoot> {\n\t\treturn Array.from( this._changedRoots.values() ).map( diffItem => {\n\t\t\tconst entry = { ...diffItem };\n\n\t\t\tif ( entry.state !== undefined ) {\n\t\t\t\t// The root was attached or detached -- do not return its attributes changes.\n\t\t\t\t// If the root was attached, it should be handled as a whole, together with its attributes, the same way as model nodes.\n\t\t\t\t// If the root was detached, its attributes should be discarded anyway.\n\t\t\t\t//\n\t\t\t\t// Keep in mind that filtering must happen on this stage (when retrieving changes). If filtering happens on-the-fly as\n\t\t\t\t// the attributes change, it may lead to incorrect situation, e.g.: detach root, change attribute, re-attach root.\n\t\t\t\t// In this case, attribute change cannot be filtered. After the root is re-attached, the attribute change must be kept.\n\t\t\t\tdelete entry.attributes;\n\t\t\t}\n\n\t\t\treturn entry;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns a set of model items that were marked to get refreshed.\n\t */\n\tpublic getRefreshedItems(): Set<Item> {\n\t\treturn new Set( this._refreshedItems );\n\t}\n\n\t/**\n\t * Resets `Differ`. Removes all buffered changes.\n\t */\n\tpublic reset(): void {\n\t\tthis._changesInElement.clear();\n\t\tthis._elementSnapshots.clear();\n\t\tthis._changedMarkers.clear();\n\t\tthis._changedRoots.clear();\n\t\tthis._refreshedItems = new Set();\n\t\tthis._cachedChanges = null;\n\t}\n\n\t/**\n\t * Buffers the root state change after the root was attached or detached\n\t */\n\tprivate _bufferRootStateChange( rootName: string, isAttached: boolean ): void {\n\t\tif ( !this._changedRoots.has( rootName ) ) {\n\t\t\tthis._changedRoots.set( rootName, { name: rootName, state: isAttached ? 'attached' : 'detached' } );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst diffItem = this._changedRoots.get( rootName )!;\n\n\t\tif ( diffItem.state !== undefined ) {\n\t\t\t// Root `state` can only toggle between of the values ('attached' or 'detached') and no value. It cannot be any other way,\n\t\t\t// because if the root was originally attached it can only become detached. Then, if it is re-attached in the same batch of\n\t\t\t// changes, it gets back to \"no change\" (which means no value). Same if the root was originally detached.\n\t\t\tdelete diffItem.state;\n\n\t\t\tif ( diffItem.attributes === undefined ) {\n\t\t\t\t// If there is no `state` change and no `attributes` change, remove the entry.\n\t\t\t\tthis._changedRoots.delete( rootName );\n\t\t\t}\n\t\t} else {\n\t\t\tdiffItem.state = isAttached ? 'attached' : 'detached';\n\t\t}\n\t}\n\n\t/**\n\t * Buffers a root attribute change.\n\t */\n\tprivate _bufferRootAttributeChange( rootName: string, key: string, oldValue: unknown, newValue: unknown ): void {\n\t\tconst diffItem: DiffItemRoot = this._changedRoots.get( rootName ) || { name: rootName };\n\t\tconst attrs: Record<string, { oldValue: unknown; newValue: unknown }> = diffItem.attributes || {};\n\n\t\tif ( attrs[ key ] ) {\n\t\t\t// If this attribute or metadata was already changed earlier and is changed again, check to what value it is changed.\n\t\t\tconst attrEntry = attrs[ key ];\n\n\t\t\tif ( newValue === attrEntry.oldValue ) {\n\t\t\t\t// If it was changed back to the old value, remove the entry.\n\t\t\t\tdelete attrs[ key ];\n\t\t\t} else {\n\t\t\t\t// If it was changed to a different value, update the entry.\n\t\t\t\tattrEntry.newValue = newValue;\n\t\t\t}\n\t\t} else {\n\t\t\t// If this attribute or metadata was not set earlier, add an entry.\n\t\t\tattrs[ key ] = { oldValue, newValue };\n\t\t}\n\n\t\tif ( Object.entries( attrs ).length === 0 ) {\n\t\t\t// If attributes or metadata changes set became empty, remove it from the diff item.\n\t\t\tdelete diffItem.attributes;\n\n\t\t\tif ( diffItem.state === undefined ) {\n\t\t\t\t// If there is no `state` change and no `attributes` change, remove the entry.\n\t\t\t\tthis._changedRoots.delete( rootName );\n\t\t\t}\n\t\t} else {\n\t\t\t// Make sure that, if a new object in the structure was created, it gets set.\n\t\t\tdiffItem.attributes = attrs;\n\n\t\t\tthis._changedRoots.set( rootName, diffItem );\n\t\t}\n\t}\n\n\t/**\n\t * Marks the given `item` in differ to be \"refreshed\". It means that the item will be marked as removed and inserted\n\t * in the differ changes set, so it will be effectively re-converted when the differ changes are handled by a dispatcher.\n\t *\n\t * @internal\n\t * @param item Item to refresh.\n\t */\n\tpublic _refreshItem( item: Item ): void {\n\t\tif ( this._isInInsertedElement( item.parent! ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._markRemove( item.parent!, item.startOffset!, item.offsetSize );\n\t\tthis._markInsert( item.parent!, item.startOffset!, item.offsetSize );\n\n\t\tthis._refreshedItems.add( item );\n\n\t\tconst range = Range._createOn( item );\n\n\t\tfor ( const marker of this._markerCollection.getMarkersIntersectingRange( range ) ) {\n\t\t\tconst markerData = marker.getData();\n\n\t\t\tthis.bufferMarkerChange( marker.name, markerData, markerData );\n\t\t}\n\n\t\t// Clear cache after each buffered operation as it is no longer valid.\n\t\tthis._cachedChanges = null;\n\t}\n\n\t/**\n\t * Saves and handles an insert change.\n\t */\n\tprivate _markInsert( parent: Element | DocumentFragment, offset: number, howMany: number ) {\n\t\tconst changeItem = { type: 'insert', offset, howMany, count: this._changeCount++ } as const;\n\n\t\tthis._markChange( parent, changeItem );\n\t}\n\n\t/**\n\t * Saves and handles a remove change.\n\t */\n\tprivate _markRemove( parent: Element | DocumentFragment, offset: number, howMany: number ) {\n\t\tconst changeItem = { type: 'remove', offset, howMany, count: this._changeCount++ } as const;\n\n\t\tthis._markChange( parent, changeItem );\n\n\t\tthis._removeAllNestedChanges( parent, offset, howMany );\n\t}\n\n\t/**\n\t * Saves and handles an attribute change.\n\t */\n\tprivate _markAttribute( item: Item ): void {\n\t\tconst changeItem = { type: 'attribute', offset: item.startOffset!, howMany: item.offsetSize, count: this._changeCount++ } as const;\n\n\t\tthis._markChange( item.parent as Element, changeItem );\n\t}\n\n\t/**\n\t * Saves and handles a model change.\n\t */\n\tprivate _markChange( parent: Element | DocumentFragment, changeItem: ChangeItem ): void {\n\t\t// First, make a snapshot of this parent's children (it will be made only if it was not made before).\n\t\tthis._makeSnapshot( parent );\n\n\t\t// Then, get all changes that already were done on the element (empty array if this is the first change).\n\t\tconst changes = this._getChangesForElement( parent );\n\n\t\t// Then, look through all the changes, and transform them or the new change.\n\t\tthis._handleChange( changeItem, changes );\n\n\t\t// Add the new change.\n\t\tchanges.push( changeItem );\n\n\t\t// Remove incorrect changes. During transformation some change might be, for example, included in another.\n\t\t// In that case, the change will have `howMany` property set to `0` or less. We need to remove those changes.\n\t\tfor ( let i = 0; i < changes.length; i++ ) {\n\t\t\tif ( changes[ i ].howMany < 1 ) {\n\t\t\t\tchanges.splice( i, 1 );\n\n\t\t\t\ti--;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Gets an array of changes that have already been saved for a given element.\n\t */\n\tprivate _getChangesForElement( element: Element | DocumentFragment ): Array<ChangeItem> {\n\t\tlet changes: Array<ChangeItem>;\n\n\t\tif ( this._changesInElement.has( element ) ) {\n\t\t\tchanges = this._changesInElement.get( element )!;\n\t\t} else {\n\t\t\tchanges = [];\n\n\t\t\tthis._changesInElement.set( element, changes );\n\t\t}\n\n\t\treturn changes;\n\t}\n\n\t/**\n\t * Saves a children snapshot for a given element.\n\t */\n\tprivate _makeSnapshot( element: Element | DocumentFragment ): void {\n\t\tif ( !this._elementSnapshots.has( element ) ) {\n\t\t\tthis._elementSnapshots.set( element, _getChildrenSnapshot( element.getChildren() ) );\n\t\t}\n\t}\n\n\t/**\n\t * For a given newly saved change, compares it with a change already done on the element and modifies the incoming\n\t * change and/or the old change.\n\t *\n\t * @param inc Incoming (new) change.\n\t * @param changes An array containing all the changes done on that element.\n\t */\n\tprivate _handleChange( inc: ChangeItem, changes: Array<ChangeItem> ): void {\n\t\t// We need a helper variable that will store how many nodes are to be still handled for this change item.\n\t\t// `nodesToHandle` (how many nodes still need to be handled) and `howMany` (how many nodes were affected)\n\t\t// needs to be differentiated.\n\t\t//\n\t\t// This comes up when there are multiple changes that are affected by `inc` change item.\n\t\t//\n\t\t// For example: assume two insert changes: `{ offset: 2, howMany: 1 }` and `{ offset: 5, howMany: 1 }`.\n\t\t// Assume that `inc` change is remove `{ offset: 2, howMany: 2, nodesToHandle: 2 }`.\n\t\t//\n\t\t// Then, we:\n\t\t// - \"forget\" about first insert change (it is \"eaten\" by remove),\n\t\t// - because of that, at the end we will want to remove only one node (`nodesToHandle = 1`),\n\t\t// - but still we have to change offset of the second insert change from `5` to `3`!\n\t\t//\n\t\t// So, `howMany` does not change throughout items transformation and keeps information about how many nodes were affected,\n\t\t// while `nodesToHandle` means how many nodes need to be handled after the change item is transformed by other changes.\n\t\tinc.nodesToHandle = inc.howMany;\n\n\t\tfor ( const old of changes ) {\n\t\t\tconst incEnd = inc.offset + inc.howMany;\n\t\t\tconst oldEnd = old.offset + old.howMany;\n\n\t\t\tif ( inc.type == 'insert' ) {\n\t\t\t\tif ( old.type == 'insert' ) {\n\t\t\t\t\tif ( inc.offset <= old.offset ) {\n\t\t\t\t\t\told.offset += inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\told.howMany += inc.nodesToHandle;\n\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'remove' ) {\n\t\t\t\t\tif ( inc.offset < old.offset ) {\n\t\t\t\t\t\told.offset += inc.howMany;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'attribute' ) {\n\t\t\t\t\tif ( inc.offset <= old.offset ) {\n\t\t\t\t\t\told.offset += inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\t// This case is more complicated, because attribute change has to be split into two.\n\t\t\t\t\t\t// Example (assume that uppercase and lowercase letters mean different attributes):\n\t\t\t\t\t\t//\n\t\t\t\t\t\t// initial state:\t\tabcxyz\n\t\t\t\t\t\t// attribute change:\taBCXYz\n\t\t\t\t\t\t// incoming insert:\t\taBCfooXYz\n\t\t\t\t\t\t//\n\t\t\t\t\t\t// Change ranges cannot intersect because each item has to be described exactly (it was either\n\t\t\t\t\t\t// not changed, inserted, removed, or its attribute was changed). That's why old attribute\n\t\t\t\t\t\t// change has to be split and both parts has to be handled separately from now on.\n\t\t\t\t\t\tconst howMany = old.howMany;\n\n\t\t\t\t\t\told.howMany = inc.offset - old.offset;\n\n\t\t\t\t\t\t// Add the second part of attribute change to the beginning of processed array so it won't\n\t\t\t\t\t\t// be processed again in this loop.\n\t\t\t\t\t\tchanges.unshift( {\n\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\toffset: incEnd,\n\t\t\t\t\t\t\thowMany: howMany - old.howMany,\n\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t} );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( inc.type == 'remove' ) {\n\t\t\t\tif ( old.type == 'insert' ) {\n\t\t\t\t\tif ( incEnd <= old.offset ) {\n\t\t\t\t\t\told.offset -= inc.howMany;\n\t\t\t\t\t} else if ( incEnd <= oldEnd ) {\n\t\t\t\t\t\tif ( inc.offset < old.offset ) {\n\t\t\t\t\t\t\tconst intersectionLength = incEnd - old.offset;\n\n\t\t\t\t\t\t\told.offset = inc.offset;\n\n\t\t\t\t\t\t\told.howMany -= intersectionLength;\n\t\t\t\t\t\t\tinc.nodesToHandle -= intersectionLength;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\told.howMany -= inc.nodesToHandle;\n\t\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif ( inc.offset <= old.offset ) {\n\t\t\t\t\t\t\tinc.nodesToHandle -= old.howMany;\n\t\t\t\t\t\t\told.howMany = 0;\n\t\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\t\tconst intersectionLength = oldEnd - inc.offset;\n\n\t\t\t\t\t\t\told.howMany -= intersectionLength;\n\t\t\t\t\t\t\tinc.nodesToHandle -= intersectionLength;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'remove' ) {\n\t\t\t\t\tif ( incEnd <= old.offset ) {\n\t\t\t\t\t\told.offset -= inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < old.offset ) {\n\t\t\t\t\t\tinc.nodesToHandle += old.howMany;\n\t\t\t\t\t\told.howMany = 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'attribute' ) {\n\t\t\t\t\tif ( incEnd <= old.offset ) {\n\t\t\t\t\t\told.offset -= inc.howMany;\n\t\t\t\t\t} else if ( inc.offset < old.offset ) {\n\t\t\t\t\t\tconst intersectionLength = incEnd - old.offset;\n\n\t\t\t\t\t\told.offset = inc.offset;\n\t\t\t\t\t\told.howMany -= intersectionLength;\n\t\t\t\t\t} else if ( inc.offset < oldEnd ) {\n\t\t\t\t\t\tif ( incEnd <= oldEnd ) {\n\t\t\t\t\t\t\t// On first sight in this case we don't need to split attribute operation into two.\n\t\t\t\t\t\t\t// However the changes set is later converted to actions (see `_generateActionsFromChanges`).\n\t\t\t\t\t\t\t// For that reason, no two changes may intersect.\n\t\t\t\t\t\t\t// So we cannot have an attribute change that \"contains\" remove change.\n\t\t\t\t\t\t\t// Attribute change needs to be split.\n\t\t\t\t\t\t\tconst howMany = old.howMany;\n\n\t\t\t\t\t\t\told.howMany = inc.offset - old.offset;\n\n\t\t\t\t\t\t\tconst howManyAfter = howMany - old.howMany - inc.nodesToHandle;\n\n\t\t\t\t\t\t\t// Add the second part of attribute change to the beginning of processed array so it won't\n\t\t\t\t\t\t\t// be processed again in this loop.\n\t\t\t\t\t\t\tchanges.unshift( {\n\t\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\t\toffset: inc.offset,\n\t\t\t\t\t\t\t\thowMany: howManyAfter,\n\t\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\told.howMany -= oldEnd - inc.offset;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( inc.type == 'attribute' ) {\n\t\t\t\t// In case of attribute change, `howMany` should be kept same as `nodesToHandle`. It's not an error.\n\t\t\t\tif ( old.type == 'insert' ) {\n\t\t\t\t\tif ( inc.offset < old.offset && incEnd > old.offset ) {\n\t\t\t\t\t\tif ( incEnd > oldEnd ) {\n\t\t\t\t\t\t\t// This case is similar to a case described when incoming change was insert and old change was attribute.\n\t\t\t\t\t\t\t// See comment above.\n\t\t\t\t\t\t\t//\n\t\t\t\t\t\t\t// This time incoming change is attribute. We need to split incoming change in this case too.\n\t\t\t\t\t\t\t// However this time, the second part of the attribute change needs to be processed further\n\t\t\t\t\t\t\t// because there might be other changes that it collides with.\n\t\t\t\t\t\t\tconst attributePart = {\n\t\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\t\toffset: oldEnd,\n\t\t\t\t\t\t\t\thowMany: incEnd - oldEnd,\n\t\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t\t} as const;\n\n\t\t\t\t\t\t\tthis._handleChange( attributePart, changes );\n\n\t\t\t\t\t\t\tchanges.push( attributePart );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tinc.nodesToHandle = old.offset - inc.offset;\n\t\t\t\t\t\tinc.howMany = inc.nodesToHandle;\n\t\t\t\t\t} else if ( inc.offset >= old.offset && inc.offset < oldEnd ) {\n\t\t\t\t\t\tif ( incEnd > oldEnd ) {\n\t\t\t\t\t\t\tinc.nodesToHandle = incEnd - oldEnd;\n\t\t\t\t\t\t\tinc.offset = oldEnd;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'remove' ) {\n\t\t\t\t\t// This is a case when attribute change \"contains\" remove change.\n\t\t\t\t\t// The attribute change needs to be split into two because changes cannot intersect.\n\t\t\t\t\tif ( inc.offset < old.offset && incEnd > old.offset ) {\n\t\t\t\t\t\tconst attributePart = {\n\t\t\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\t\t\toffset: old.offset,\n\t\t\t\t\t\t\thowMany: incEnd - old.offset,\n\t\t\t\t\t\t\tcount: this._changeCount++\n\t\t\t\t\t\t} as const;\n\n\t\t\t\t\t\tthis._handleChange( attributePart, changes );\n\n\t\t\t\t\t\tchanges.push( attributePart );\n\n\t\t\t\t\t\tinc.nodesToHandle = old.offset - inc.offset;\n\t\t\t\t\t\tinc.howMany = inc.nodesToHandle;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( old.type == 'attribute' ) {\n\t\t\t\t\t// There are only two conflicting scenarios possible here:\n\t\t\t\t\tif ( inc.offset >= old.offset && incEnd <= oldEnd ) {\n\t\t\t\t\t\t// `old` change includes `inc` change, or they are the same.\n\t\t\t\t\t\tinc.nodesToHandle = 0;\n\t\t\t\t\t\tinc.howMany = 0;\n\t\t\t\t\t\tinc.offset = 0;\n\t\t\t\t\t} else if ( inc.offset <= old.offset && incEnd >= oldEnd ) {\n\t\t\t\t\t\t// `inc` change includes `old` change.\n\t\t\t\t\t\told.howMany = 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tinc.howMany = inc.nodesToHandle;\n\t\tdelete inc.nodesToHandle;\n\t}\n\n\t/**\n\t * Returns an object with a single insert change description.\n\t *\n\t * @param parent The element in which the change happened.\n\t * @param offset The offset at which change happened.\n\t * @param elementSnapshot The snapshot of the removed element a character.\n\t * @returns The diff item.\n\t */\n\tprivate _getInsertDiff(\n\t\tparent: Element | DocumentFragment,\n\t\toffset: number,\n\t\telementSnapshot: { name: string; attributes: Map<string, unknown> }\n\t): DiffItemInsert & DiffItemInternal {\n\t\treturn {\n\t\t\ttype: 'insert',\n\t\t\tposition: Position._createAt( parent, offset ),\n\t\t\tname: elementSnapshot.name,\n\t\t\tattributes: new Map( elementSnapshot.attributes ),\n\t\t\tlength: 1,\n\t\t\tchangeCount: this._changeCount++\n\t\t};\n\t}\n\n\t/**\n\t * Returns an object with a single remove change description.\n\t *\n\t * @param parent The element in which change happened.\n\t * @param offset The offset at which change happened.\n\t * @param elementSnapshot The snapshot of the removed element a character.\n\t * @returns The diff item.\n\t */\n\tprivate _getRemoveDiff(\n\t\tparent: Element | DocumentFragment,\n\t\toffset: number,\n\t\telementSnapshot: { name: string; attributes: Map<string, unknown> }\n\t): DiffItemRemove & DiffItemInternal {\n\t\treturn {\n\t\t\ttype: 'remove',\n\t\t\tposition: Position._createAt( parent, offset ),\n\t\t\tname: elementSnapshot.name,\n\t\t\tattributes: new Map( elementSnapshot.attributes ),\n\t\t\tlength: 1,\n\t\t\tchangeCount: this._changeCount++\n\t\t};\n\t}\n\n\t/**\n\t * Returns an array of objects where each one is a single attribute change description.\n\t *\n\t * @param range The range where the change happened.\n\t * @param oldAttributes A map, map iterator or compatible object that contains attributes before the change.\n\t * @param newAttributes A map, map iterator or compatible object that contains attributes after the change.\n\t * @returns An array containing one or more diff items.\n\t */\n\tprivate _getAttributesDiff(\n\t\trange: Range,\n\t\toldAttributes: Map<string, unknown>,\n\t\tnewAttributes: Map<string, unknown>\n\t): Array<DiffItemAttribute & DiffItemInternal> {\n\t\t// Results holder.\n\t\tconst diffs: Array<DiffItemAttribute & DiffItemInternal> = [];\n\n\t\t// Clone new attributes as we will be performing changes on this object.\n\t\tnewAttributes = new Map( newAttributes );\n\n\t\t// Look through old attributes.\n\t\tfor ( const [ key, oldValue ] of oldAttributes ) {\n\t\t\t// Check what is the new value of the attribute (or if it was removed).\n\t\t\tconst newValue = newAttributes.has( key ) ? newAttributes.get( key ) : null;\n\n\t\t\t// If values are different (or attribute was removed)...\n\t\t\tif ( newValue !== oldValue ) {\n\t\t\t\t// Add diff item.\n\t\t\t\tdiffs.push( {\n\t\t\t\t\ttype: 'attribute',\n\t\t\t\t\tposition: range.start,\n\t\t\t\t\trange: range.clone(),\n\t\t\t\t\tlength: 1,\n\t\t\t\t\tattributeKey: key,\n\t\t\t\t\tattributeOldValue: oldValue,\n\t\t\t\t\tattributeNewValue: newValue,\n\t\t\t\t\tchangeCount: this._changeCount++\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Prevent returning two diff items for the same change.\n\t\t\tnewAttributes.delete( key );\n\t\t}\n\n\t\t// Look through new attributes that weren't handled above.\n\t\tfor ( const [ key, newValue ] of newAttributes ) {\n\t\t\t// Each of them is a new attribute. Add diff item.\n\t\t\tdiffs.push( {\n\t\t\t\ttype: 'attribute',\n\t\t\t\tposition: range.start,\n\t\t\t\trange: range.clone(),\n\t\t\t\tlength: 1,\n\t\t\t\tattributeKey: key,\n\t\t\t\tattributeOldValue: null,\n\t\t\t\tattributeNewValue: newValue,\n\t\t\t\tchangeCount: this._changeCount++\n\t\t\t} );\n\t\t}\n\n\t\treturn diffs;\n\t}\n\n\t/**\n\t * Checks whether given element or any of its parents is an element that is buffered as an inserted element.\n\t */\n\tprivate _isInInsertedElement( element: Element | DocumentFragment ): boolean {\n\t\tconst parent = element.parent;\n\n\t\tif ( !parent ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst changes = this._changesInElement.get( parent );\n\t\tconst offset = element.startOffset;\n\n\t\tif ( changes ) {\n\t\t\tfor ( const change of changes ) {\n\t\t\t\tif ( change.type == 'insert' && offset! >= change.offset && offset! < change.offset + change.howMany ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this._isInInsertedElement( parent );\n\t}\n\n\t/**\n\t * Removes deeply all buffered changes that are registered in elements from range specified by `parent`, `offset`\n\t * and `howMany`.\n\t */\n\tprivate _removeAllNestedChanges( parent: Element | DocumentFragment, offset: number, howMany: number ) {\n\t\tconst range = new Range( Position._createAt( parent, offset ), Position._createAt( parent, offset + howMany ) );\n\n\t\tfor ( const item of range.getItems( { shallow: true } ) ) {\n\t\t\tif ( item.is( 'element' ) ) {\n\t\t\t\tthis._elementSnapshots.delete( item );\n\t\t\t\tthis._changesInElement.delete( item );\n\n\t\t\t\tthis._removeAllNestedChanges( item, 0, item.maxOffset );\n\t\t\t}\n\t\t}\n\t}\n}\n\ninterface ChangeItem {\n\ttype: 'insert' | 'remove' | 'attribute';\n\toffset: number;\n\thowMany: number;\n\tcount: number;\n\tnodesToHandle?: number;\n}\n\n/**\n * Returns an array that is a copy of passed child list with the exception that text nodes are split to one or more\n * objects, each representing one character and attributes set on that character.\n */\nfunction _getChildrenSnapshot( children: Iterable<Node> ) {\n\tconst snapshot = [];\n\n\tfor ( const child of children ) {\n\t\tif ( child.is( '$text' ) ) {\n\t\t\tfor ( let i = 0; i < child.data.length; i++ ) {\n\t\t\t\tsnapshot.push( {\n\t\t\t\t\tname: '$text',\n\t\t\t\t\tattributes: new Map( child.getAttributes() )\n\t\t\t\t} );\n\t\t\t}\n\t\t} else {\n\t\t\tsnapshot.push( {\n\t\t\t\tname: ( child as Element ).name,\n\t\t\t\tattributes: new Map( child.getAttributes() )\n\t\t\t} );\n\t\t}\n\t}\n\n\treturn snapshot;\n}\n\n/**\n * Generates array of actions for given changes set.\n * It simulates what `diff` function does.\n * Generated actions are:\n * - 'e' for 'equal' - when item at that position did not change,\n * - 'i' for 'insert' - when item at that position was inserted,\n * - 'r' for 'remove' - when item at that position was removed,\n * - 'a' for 'attribute' - when item at that position has it attributes changed.\n *\n * Example (assume that uppercase letters have bold attribute, compare with function code):\n *\n * children before:\tfooBAR\n * children after:\tfoxybAR\n *\n * changes: type: remove, offset: 1, howMany: 1\n *\t\t\ttype: insert, offset: 2, howMany: 2\n *\t\t\ttype: attribute, offset: 4, howMany: 1\n *\n * expected actions: equal (f), remove (o), equal (o), insert (x), insert (y), attribute (b), equal (A), equal (R)\n *\n * steps taken by th script:\n *\n * 1. change = \"type: remove, offset: 1, howMany: 1\"; offset = 0; oldChildrenHandled = 0\n *    1.1 between this change and the beginning is one not-changed node, fill with one equal action, one old child has been handled\n *    1.2 this change removes one node, add one remove action\n *    1.3 change last visited `offset` to 1\n *    1.4 since an old child has been removed, one more old child has been handled\n *    1.5 actions at this point are: equal, remove\n *\n * 2. change = \"type: insert, offset: 2, howMany: 2\"; offset = 1; oldChildrenHandled = 2\n *    2.1 between this change and previous change is one not-changed node, add equal action, another one old children has been handled\n *    2.2 this change inserts two nodes, add two insert actions\n *    2.3 change last visited offset to the end of the inserted range, that is 4\n *    2.4 actions at this point are: equal, remove, equal, insert, insert\n *\n * 3. change = \"type: attribute, offset: 4, howMany: 1\"; offset = 4, oldChildrenHandled = 3\n *    3.1 between this change and previous change are no not-changed nodes\n *    3.2 this change changes one node, add one attribute action\n *    3.3 change last visited `offset` to the end of change range, that is 5\n *    3.4 since an old child has been changed, one more old child has been handled\n *    3.5 actions at this point are: equal, remove, equal, insert, insert, attribute\n *\n * 4. after loop oldChildrenHandled = 4, oldChildrenLength = 6 (fooBAR is 6 characters)\n *    4.1 fill up with two equal actions\n *\n * The result actions are: equal, remove, equal, insert, insert, attribute, equal, equal.\n */\nfunction _generateActionsFromChanges( oldChildrenLength: number, changes: Array<ChangeItem> ) {\n\tconst actions: Array<string> = [];\n\n\tlet offset = 0;\n\tlet oldChildrenHandled = 0;\n\n\t// Go through all buffered changes.\n\tfor ( const change of changes ) {\n\t\t// First, fill \"holes\" between changes with \"equal\" actions.\n\t\tif ( change.offset > offset ) {\n\t\t\tfor ( let i = 0; i < change.offset - offset; i++ ) {\n\t\t\t\tactions.push( 'e' );\n\t\t\t}\n\n\t\t\toldChildrenHandled += change.offset - offset;\n\t\t}\n\n\t\t// Then, fill up actions accordingly to change type.\n\t\tif ( change.type == 'insert' ) {\n\t\t\tfor ( let i = 0; i < change.howMany; i++ ) {\n\t\t\t\tactions.push( 'i' );\n\t\t\t}\n\n\t\t\t// The last handled offset is after inserted range.\n\t\t\toffset = change.offset + change.howMany;\n\t\t} else if ( change.type == 'remove' ) {\n\t\t\tfor ( let i = 0; i < change.howMany; i++ ) {\n\t\t\t\tactions.push( 'r' );\n\t\t\t}\n\n\t\t\t// The last handled offset is at the position where the nodes were removed.\n\t\t\toffset = change.offset;\n\t\t\t// We removed `howMany` old nodes, update `oldChildrenHandled`.\n\t\t\toldChildrenHandled += change.howMany;\n\t\t} else {\n\t\t\tactions.push( ...'a'.repeat( change.howMany ).split( '' ) );\n\n\t\t\t// The last handled offset is at the position after the changed range.\n\t\t\toffset = change.offset + change.howMany;\n\t\t\t// We changed `howMany` old nodes, update `oldChildrenHandled`.\n\t\t\toldChildrenHandled += change.howMany;\n\t\t}\n\t}\n\n\t// Fill \"equal\" actions at the end of actions set. Use `oldChildrenHandled` to see how many children\n\t// has not been changed / removed at the end of their parent.\n\tif ( oldChildrenHandled < oldChildrenLength ) {\n\t\tfor ( let i = 0; i < oldChildrenLength - oldChildrenHandled - offset; i++ ) {\n\t\t\tactions.push( 'e' );\n\t\t}\n\t}\n\n\treturn actions;\n}\n\n/**\n * Filter callback for Array.filter that filters out change entries that are in graveyard.\n */\nfunction _changesInGraveyardFilter( entry: DiffItem ) {\n\tconst posInGy = 'position' in entry && entry.position!.root.rootName == '$graveyard';\n\tconst rangeInGy = 'range' in entry && entry.range.root.rootName == '$graveyard';\n\n\treturn !posInGy && !rangeInGy;\n}\n\n/**\n * The single diff item.\n *\n * Could be one of:\n *\n * * {@link module:engine/model/differ~DiffItemInsert `DiffItemInsert`},\n * * {@link module:engine/model/differ~DiffItemRemove `DiffItemRemove`},\n * * {@link module:engine/model/differ~DiffItemAttribute `DiffItemAttribute`}.\n */\nexport type DiffItem = DiffItemInsert | DiffItemRemove | DiffItemAttribute;\n\n/**\n * A single diff item for inserted nodes.\n */\nexport interface DiffItemInsert {\n\n\t/**\n\t * The type of diff item.\n\t */\n\ttype: 'insert';\n\n\t/**\n\t * The name of the inserted elements or `'$text'` for a text node.\n\t */\n\tname: string;\n\n\t/**\n\t * Map of attributes that were set on the item while it was inserted.\n\t */\n\tattributes: Map<string, unknown>;\n\n\t/**\n\t * The position where the node was inserted.\n\t */\n\tposition: Position;\n\n\t/**\n\t * The length of an inserted text node. For elements, it is always 1 as each inserted element is counted as a one.\n\t */\n\tlength: number;\n}\n\n/**\n * A single diff item for removed nodes.\n */\nexport interface DiffItemRemove {\n\n\t/**\n\t * The type of diff item.\n\t */\n\ttype: 'remove';\n\n\t/**\n\t * The name of the removed element or `'$text'` for a text node.\n\t */\n\tname: string;\n\n\t/**\n\t * Map of attributes that were set on the item while it was removed.\n\t */\n\tattributes: Map<string, unknown>;\n\n\t/**\n\t * The position where the node was removed.\n\t */\n\tposition: Position;\n\n\t/**\n\t * The length of a removed text node. For elements, it is always 1, as each removed element is counted as a one.\n\t */\n\tlength: number;\n}\n\n/**\n * A single diff item for attribute change.\n */\nexport interface DiffItemAttribute {\n\n\t/**\n\t * The type of diff item.\n\t */\n\ttype: 'attribute';\n\n\t/**\n\t * The name of the changed attribute.\n\t */\n\tattributeKey: string;\n\n\t/**\n\t * An attribute previous value (before change).\n\t */\n\tattributeOldValue: unknown;\n\n\t/**\n\t * An attribute new value (after change).\n\t */\n\tattributeNewValue: unknown;\n\n\t/**\n\t * The range where the change happened.\n\t */\n\trange: Range;\n}\n\n/**\n * A single diff item for a changed root.\n */\nexport interface DiffItemRoot {\n\n\t/**\n\t * Name of the changed root.\n\t */\n\tname: string;\n\n\t/**\n\t * Set accordingly if the root got attached or detached. Otherwise, not set.\n\t */\n\tstate?: 'attached' | 'detached';\n\n\t/**\n\t * Keeps all attribute changes that happened on the root.\n\t *\n\t * The keys are keys of the changed attributes. The values are objects containing the attribute value before the change\n\t * (`oldValue`) and after the change (`newValue`).\n\t *\n\t * Note, that if the root state changed (`state` is set), then `attributes` property will not be set. All attributes should be\n\t * handled together with the root being attached or detached.\n\t */\n\tattributes?: Record<string, { oldValue: unknown; newValue: unknown }>;\n}\n\ninterface DiffItemInternal {\n\tchangeCount?: number;\n\tposition?: Position;\n\tlength?: number;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type Operation from './operation/operation';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * @module engine/model/history\n */\n\n/**\n * `History` keeps the track of all the operations applied to the {@link module:engine/model/document~Document document}.\n */\nexport default class History {\n\t/**\n\t * Operations added to the history.\n\t */\n\tprivate _operations: Array<Operation> = [];\n\n\t/**\n\t * Holds an information which {@link module:engine/model/operation/operation~Operation operation} undoes which\n\t * {@link module:engine/model/operation/operation~Operation operation}.\n\t *\n\t * Keys of the map are \"undoing operations\", that is operations that undone some other operations. For each key, the\n\t * value is an operation that has been undone by the \"undoing operation\".\n\t */\n\tprivate _undoPairs: Map<Operation, Operation> = new Map();\n\n\t/**\n\t * Holds all undone operations.\n\t */\n\tprivate _undoneOperations: Set<Operation> = new Set();\n\n\t/**\n\t * A map that allows retrieving the operations fast based on the given base version.\n\t */\n\tprivate _baseVersionToOperationIndex: Map<number, number> = new Map();\n\n\t/**\n\t * The history version.\n\t */\n\tprivate _version: number = 0;\n\n\t/**\n\t * The gap pairs kept in the <from,to> format.\n\t *\n\t * Anytime the `history.version` is set to a version larger than `history.version + 1`,\n\t * a new <lastHistoryVersion, newHistoryVersion> entry is added to the map.\n\t */\n\tprivate _gaps: Map<number, number> = new Map();\n\n\t/**\n\t * The version of the last operation in the history.\n\t *\n\t * The history version is incremented automatically when a new operation is added to the history.\n\t * Setting the version manually should be done only in rare circumstances when a gap is planned\n\t * between history versions. When doing so, a gap will be created and the history will accept adding\n\t * an operation with base version equal to the new history version.\n\t */\n\tpublic get version(): number {\n\t\treturn this._version;\n\t}\n\n\tpublic set version( version: number ) {\n\t\t// Store a gap if there are some operations already in the history and the\n\t\t// new version does not increment the latest one.\n\t\tif ( this._operations.length && version > this._version + 1 ) {\n\t\t\tthis._gaps.set( this._version, version );\n\t\t}\n\n\t\tthis._version = version;\n\t}\n\n\t/**\n\t * The last history operation.\n\t */\n\tpublic get lastOperation(): Operation | undefined {\n\t\treturn this._operations[ this._operations.length - 1 ];\n\t}\n\n\t/**\n\t * Adds an operation to the history and increments the history version.\n\t *\n\t * The operation's base version should be equal to the history version. Otherwise an error is thrown.\n\t */\n\tpublic addOperation( operation: Operation ): void {\n\t\tif ( operation.baseVersion !== this.version ) {\n\t\t\t/**\n\t\t\t * Only operations with matching versions can be added to the history.\n\t\t\t *\n\t\t\t * @error model-document-history-addoperation-incorrect-version\n\t\t\t * @param errorData The operation and the current document history version.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-document-history-addoperation-incorrect-version', this, {\n\t\t\t\toperation,\n\t\t\t\thistoryVersion: this.version\n\t\t\t} );\n\t\t}\n\n\t\tthis._operations.push( operation );\n\t\tthis._version++;\n\n\t\tthis._baseVersionToOperationIndex.set( operation.baseVersion, this._operations.length - 1 );\n\t}\n\n\t/**\n\t * Returns operations from the given range of operation base versions that were added to the history.\n\t *\n\t * Note that there may be gaps in operations base versions.\n\t *\n\t * @param fromBaseVersion Base version from which operations should be returned (inclusive).\n\t * @param toBaseVersion Base version up to which operations should be returned (exclusive).\n     * @returns History operations for the given range, in chronological order.\n\t */\n\tpublic getOperations( fromBaseVersion?: number, toBaseVersion: number = this.version ): Array<Operation> {\n\t\t// When there is no operation in the history, return an empty array.\n\t\t// After that we can be sure that `firstOperation`, `lastOperation` are not nullish.\n\t\tif ( !this._operations.length ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tconst firstOperation = this._operations[ 0 ];\n\n\t\tif ( fromBaseVersion === undefined ) {\n\t\t\tfromBaseVersion = firstOperation.baseVersion!;\n\t\t}\n\n\t\t// Change exclusive `toBaseVersion` to inclusive, so it will refer to the actual index.\n\t\t// Thanks to that mapping from base versions to operation indexes are possible.\n\t\tlet inclusiveTo = toBaseVersion - 1;\n\n\t\t// Check if \"from\" or \"to\" point to a gap between versions.\n\t\t// If yes, then change the incorrect position to the proper side of the gap.\n\t\t// Thanks to it, it will be possible to get index of the operation.\n\t\tfor ( const [ gapFrom, gapTo ] of this._gaps ) {\n\t\t\tif ( fromBaseVersion > gapFrom && fromBaseVersion < gapTo ) {\n\t\t\t\tfromBaseVersion = gapTo;\n\t\t\t}\n\n\t\t\tif ( inclusiveTo > gapFrom && inclusiveTo < gapTo ) {\n\t\t\t\tinclusiveTo = gapFrom - 1;\n\t\t\t}\n\t\t}\n\n\t\t// If the whole range is outside of the operation versions, then return an empty array.\n\t\tif ( inclusiveTo < firstOperation.baseVersion! || fromBaseVersion > this.lastOperation!.baseVersion! ) {\n\t\t\treturn [];\n\t\t}\n\n\t\tlet fromIndex = this._baseVersionToOperationIndex.get( fromBaseVersion );\n\n\t\t// If the range starts before the first operation, then use the first operation as the range's start.\n\t\tif ( fromIndex === undefined ) {\n\t\t\tfromIndex = 0;\n\t\t}\n\n\t\tlet toIndex = this._baseVersionToOperationIndex.get( inclusiveTo );\n\n\t\t// If the range ends after the last operation, then use the last operation as the range's end.\n\t\tif ( toIndex === undefined ) {\n\t\t\ttoIndex = this._operations.length - 1;\n\t\t}\n\n\t\t// Return the part of the history operations based on the calculated start index and end index.\n\t\treturn this._operations.slice(\n\t\t\tfromIndex,\n\n\t\t\t// The `toIndex` should be included in the returned operations, so add `1`.\n\t\t\ttoIndex + 1\n\t\t);\n\t}\n\n\t/**\n\t * Returns operation from the history that bases on given `baseVersion`.\n\t *\n\t * @param baseVersion Base version of the operation to get.\n\t * @returns Operation with given base version or `undefined` if there is no such operation in history.\n\t */\n\tpublic getOperation( baseVersion: number ): Operation | undefined {\n\t\tconst operationIndex = this._baseVersionToOperationIndex.get( baseVersion );\n\n\t\tif ( operationIndex === undefined ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn this._operations[ operationIndex ];\n\t}\n\n\t/**\n\t * Marks in history that one operation is an operation that is undoing the other operation. By marking operation this way,\n\t * history is keeping more context information about operations, which helps in operational transformation.\n\t *\n\t * @param undoneOperation Operation which is undone by `undoingOperation`.\n\t * @param undoingOperation Operation which undoes `undoneOperation`.\n\t */\n\tpublic setOperationAsUndone( undoneOperation: Operation, undoingOperation: Operation ): void {\n\t\tthis._undoPairs.set( undoingOperation, undoneOperation );\n\t\tthis._undoneOperations.add( undoneOperation );\n\t}\n\n\t/**\n\t * Checks whether given `operation` is undoing any other operation.\n\t *\n\t * @param operation Operation to check.\n\t * @returns `true` if given `operation` is undoing any other operation, `false` otherwise.\n\t */\n\tpublic isUndoingOperation( operation: Operation ): boolean {\n\t\treturn this._undoPairs.has( operation );\n\t}\n\n\t/**\n\t * Checks whether given `operation` has been undone by any other operation.\n\t *\n\t * @param operation Operation to check.\n\t * @returns `true` if given `operation` has been undone any other operation, `false` otherwise.\n\t */\n\tpublic isUndoneOperation( operation: Operation ): boolean {\n\t\treturn this._undoneOperations.has( operation );\n\t}\n\n\t/**\n\t * For given `undoingOperation`, returns the operation which has been undone by it.\n\t *\n\t * @returns Operation that has been undone by given `undoingOperation` or `undefined`\n\t * if given `undoingOperation` is not undoing any other operation.\n\t */\n\tpublic getUndoneOperation( undoingOperation: Operation ): Operation | undefined {\n\t\treturn this._undoPairs.get( undoingOperation );\n\t}\n\n\t/**\n\t * Resets the history of operations.\n\t */\n\tpublic reset(): void {\n\t\tthis._version = 0;\n\t\tthis._undoPairs = new Map();\n\t\tthis._operations = [];\n\t\tthis._undoneOperations = new Set();\n\t\tthis._gaps = new Map();\n\t\tthis._baseVersionToOperationIndex = new Map();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/rootelement\n */\n\nimport Element from './element';\n\nimport type Document from './document';\n\n/**\n * Type of {@link module:engine/model/element~Element} that is a root of a model tree.\n */\nexport default class RootElement extends Element {\n\t/**\n\t * Unique root name used to identify this root element by {@link module:engine/model/document~Document}.\n\t */\n\tpublic override readonly rootName: string;\n\n\t/**\n\t * Document that is an owner of this root.\n\t */\n\tprivate readonly _document: Document;\n\n\t/**\n\t * @internal\n\t */\n\tpublic _isAttached = true;\n\n\t/**\n\t * Creates root element.\n\t *\n\t * @param document Document that is an owner of this root.\n\t * @param name Node name.\n\t * @param rootName Unique root name used to identify this root element by {@link module:engine/model/document~Document}.\n\t */\n\tconstructor( document: Document, name: string, rootName: string = 'main' ) {\n\t\tsuper( name );\n\n\t\tthis._document = document;\n\t\tthis.rootName = rootName;\n\t}\n\n\t/**\n\t * {@link module:engine/model/document~Document Document} that owns this root element.\n\t */\n\tpublic override get document(): Document {\n\t\treturn this._document;\n\t}\n\n\t/**\n\t * Informs if the root element is currently attached to the document, or not.\n\t *\n\t * A detached root is equivalent to being removed and cannot contain any children or markers.\n\t *\n\t * By default, a newly added root is attached. It can be detached using\n\t * {@link module:engine/model/writer~Writer#detachRoot `Writer#detachRoot`}. A detached root can be re-attached again using\n\t * {@link module:engine/model/writer~Writer#addRoot `Writer#addRoot`}.\n\t */\n\tpublic override isAttached(): boolean {\n\t\treturn this._isAttached;\n\t}\n\n\t/**\n\t * Converts `RootElement` instance to `string` containing its name.\n\t *\n\t * @returns `RootElement` instance converted to `string`.\n\t */\n\tpublic override toJSON(): unknown {\n\t\treturn this.rootName;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \treturn this.rootName;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public override log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelRootElement: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nRootElement.prototype.is = function( type: string, name?: string ): boolean {\n\tif ( !name ) {\n\t\treturn type === 'rootElement' || type === 'model:rootElement' ||\n\t\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\t\ttype === 'element' || type === 'model:element' ||\n\t\t\ttype === 'node' || type === 'model:node';\n\t}\n\n\treturn name === this.name && (\n\t\ttype === 'rootElement' || type === 'model:rootElement' ||\n\t\t// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.\n\t\ttype === 'element' || type === 'model:element'\n\t);\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/document\n */\n\nimport Differ from './differ';\nimport DocumentSelection from './documentselection';\nimport History from './history';\nimport RootElement from './rootelement';\n\nimport type { SelectionChangeEvent } from './selection';\nimport type { default as Model, ModelApplyOperationEvent } from './model';\nimport type { MarkerCollectionUpdateEvent, MarkerChangeEvent } from './markercollection';\nimport type Batch from './batch';\nimport type Position from './position';\nimport type Range from './range';\nimport type Writer from './writer';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tEmitterMixin,\n\tisInsideSurrogatePair,\n\tisInsideCombinedSymbol\n} from '@ckeditor/ckeditor5-utils';\n\nimport { clone } from 'lodash-es';\n\n// @if CK_DEBUG_ENGINE // const { logDocument } = require( '../dev-utils/utils' );\n\nconst graveyardName = '$graveyard';\n\n/**\n * Data model's document. It contains the model's structure, its selection and the history of changes.\n *\n * Read more about working with the model in\n * {@glink framework/architecture/editing-engine#model introduction to the the editing engine's architecture}.\n *\n * Usually, the document contains just one {@link module:engine/model/document~Document#roots root element}, so\n * you can retrieve it by just calling {@link module:engine/model/document~Document#getRoot} without specifying its name:\n *\n * ```ts\n * model.document.getRoot(); // -> returns the main root\n * ```\n *\n * However, the document may contain multiple roots – e.g. when the editor has multiple editable areas\n * (e.g. a title and a body of a message).\n */\nexport default class Document extends EmitterMixin() {\n\t/**\n\t * The {@link module:engine/model/model~Model model} that the document is a part of.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * The document's history.\n\t */\n\tpublic readonly history: History;\n\n\t/**\n\t * The selection in this document.\n\t */\n\tpublic readonly selection: DocumentSelection;\n\n\t/**\n\t * A list of roots that are owned and managed by this document. Use {@link #createRoot}, {@link #getRoot} and\n\t * {@link #getRootNames} to manipulate it.\n\t */\n\tpublic readonly roots: Collection<RootElement>;\n\n\t/**\n\t * The model differ object. Its role is to buffer changes done on the model document and then calculate a diff of those changes.\n\t */\n\tpublic readonly differ: Differ;\n\n\t/**\n\t * Post-fixer callbacks registered to the model document.\n\t */\n\tprivate readonly _postFixers: Set<ModelPostFixer>;\n\n\t/**\n\t * A flag that indicates whether the selection has changed since last change block.\n\t */\n\tprivate _hasSelectionChangedFromTheLastChangeBlock: boolean;\n\n\t/**\n\t * Creates an empty document instance with no {@link #roots} (other than\n\t * the {@link #graveyard graveyard root}).\n\t */\n\tconstructor( model: Model ) {\n\t\tsuper();\n\n\t\tthis.model = model;\n\t\tthis.history = new History();\n\t\tthis.selection = new DocumentSelection( this );\n\t\tthis.roots = new Collection( { idProperty: 'rootName' } );\n\t\tthis.differ = new Differ( model.markers );\n\n\t\tthis._postFixers = new Set();\n\t\tthis._hasSelectionChangedFromTheLastChangeBlock = false;\n\n\t\t// Graveyard tree root. Document always have a graveyard root, which stores removed nodes.\n\t\tthis.createRoot( '$root', graveyardName );\n\n\t\t// Then, still before an operation is applied on model, buffer the change in differ.\n\t\tthis.listenTo<ModelApplyOperationEvent>( model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( operation.isDocumentOperation ) {\n\t\t\t\tthis.differ.bufferOperation( operation );\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// After the operation is applied, bump document's version and add the operation to the history.\n\t\tthis.listenTo<ModelApplyOperationEvent>( model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\tif ( operation.isDocumentOperation ) {\n\t\t\t\tthis.history.addOperation( operation );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\t// Listen to selection changes. If selection changed, mark it.\n\t\tthis.listenTo<SelectionChangeEvent>( this.selection, 'change', () => {\n\t\t\tthis._hasSelectionChangedFromTheLastChangeBlock = true;\n\t\t} );\n\n\t\t// Buffer marker changes.\n\t\t// This is not covered in buffering operations because markers may change outside of them (when they\n\t\t// are modified using `model.markers` collection, not through `MarkerOperation`).\n\t\tthis.listenTo<MarkerCollectionUpdateEvent>( model.markers, 'update', ( evt, marker, oldRange, newRange, oldMarkerData ) => {\n\t\t\t// Copy the `newRange` to the new marker data as during the marker removal the range is not updated.\n\t\t\tconst newMarkerData = { ...marker.getData(), range: newRange };\n\n\t\t\t// Whenever marker is updated, buffer that change.\n\t\t\tthis.differ.bufferMarkerChange( marker.name, oldMarkerData, newMarkerData );\n\n\t\t\tif ( oldRange === null ) {\n\t\t\t\t// If this is a new marker, add a listener that will buffer change whenever marker changes.\n\t\t\t\tmarker.on<MarkerChangeEvent>( 'change', ( evt, oldRange ) => {\n\t\t\t\t\tconst markerData = marker.getData();\n\n\t\t\t\t\tthis.differ.bufferMarkerChange(\n\t\t\t\t\t\tmarker.name,\n\t\t\t\t\t\t{ ...markerData, range: oldRange },\n\t\t\t\t\t\tmarkerData\n\t\t\t\t\t);\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\n\t\t// This is a solution for a problem that may occur during real-time editing. If one client detached a root and another added\n\t\t// something there at the same moment, the OT does not solve this problem currently. In such situation, the added elements would\n\t\t// stay in the detached root.\n\t\t//\n\t\t// This is incorrect, a detached root should be empty and all elements from it should be removed. To solve this, the post-fixer will\n\t\t// remove any element that is left in a detached root.\n\t\t//\n\t\t// Similarly, markers that are created at the beginning or at the end of the detached root will not be removed as well.\n\t\t//\n\t\t// The drawback of this solution over the OT solution is that the elements removed by the post-fixer will never be brought back.\n\t\t// If the root detachment gets undone (and the root is brought back), the removed elements will not be there.\n\t\tthis.registerPostFixer( writer => {\n\t\t\tlet result = false;\n\n\t\t\tfor ( const root of this.roots ) {\n\t\t\t\tif ( !root.isAttached() && !root.isEmpty ) {\n\t\t\t\t\twriter.remove( writer.createRangeIn( root ) );\n\n\t\t\t\t\tresult = true;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tfor ( const marker of this.model.markers ) {\n\t\t\t\tif ( !marker.getRange().root.isAttached() ) {\n\t\t\t\t\twriter.removeMarker( marker );\n\n\t\t\t\t\tresult = true;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn result;\n\t\t} );\n\t}\n\n\t/**\n\t * The document version. Every applied operation increases the version number. It is used to\n\t * ensure that operations are applied on a proper document version.\n\t *\n\t * This property is equal to {@link module:engine/model/history~History#version `model.Document#history#version`}.\n\t *\n\t * If the {@link module:engine/model/operation/operation~Operation#baseVersion base version} does not match the document version,\n\t * a {@link module:utils/ckeditorerror~CKEditorError model-document-applyoperation-wrong-version} error is thrown.\n\t */\n\tpublic get version(): number {\n\t\treturn this.history.version;\n\t}\n\n\tpublic set version( version: number ) {\n\t\tthis.history.version = version;\n\t}\n\n\t/**\n\t * The graveyard tree root. A document always has a graveyard root that stores removed nodes.\n\t */\n\tpublic get graveyard(): RootElement {\n\t\treturn this.getRoot( graveyardName )!;\n\t}\n\n\t/**\n\t * Creates a new root.\n\t *\n\t * **Note:** do not use this method after the editor has been initialized! If you want to dynamically add a root, use\n\t * {@link module:engine/model/writer~Writer#addRoot `model.Writer#addRoot`} instead.\n\t *\n\t * @param elementName The element name. Defaults to `'$root'` which also has some basic schema defined\n\t * (e.g. `$block` elements are allowed inside the `$root`). Make sure to define a proper schema if you use a different name.\n\t * @param rootName A unique root name.\n\t * @returns The created root.\n\t */\n\tpublic createRoot( elementName: string = '$root', rootName: string = 'main' ): RootElement {\n\t\tif ( this.roots.get( rootName ) ) {\n\t\t\t/**\n\t\t\t * A root with the specified name already exists.\n\t\t\t *\n\t\t\t * @error model-document-createroot-name-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'model-document-createroot-name-exists', this, { name: rootName } );\n\t\t}\n\n\t\tconst root = new RootElement( this, elementName, rootName );\n\t\tthis.roots.add( root );\n\n\t\treturn root;\n\t}\n\n\t/**\n\t * Removes all event listeners set by the document instance.\n\t */\n\tpublic destroy(): void {\n\t\tthis.selection.destroy();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Returns a root by its name.\n\t *\n\t * Detached roots are returned by this method. This is to be able to operate on the detached root (for example, to be able to create\n\t * a position inside such a root for undo feature purposes).\n\t *\n\t * @param name The root name of the root to return.\n\t * @returns The root registered under a given name or `null` when there is no root with the given name.\n\t */\n\tpublic getRoot( name: string = 'main' ): RootElement | null {\n\t\treturn this.roots.get( name );\n\t}\n\n\t/**\n\t * Returns an array with names of all roots added to the document (except the {@link #graveyard graveyard root}).\n\t *\n\t * Detached roots **are not** returned by this method by default. This is to make sure that all features or algorithms that operate\n\t * on the document data know which roots are still a part of the document and should be processed.\n\t *\n\t * @param includeDetached Specified whether detached roots should be returned as well.\n\t * @returns Roots names.\n\t */\n\tpublic getRootNames( includeDetached = false ): Array<string> {\n\t\treturn Array.from( this.roots )\n\t\t\t.filter( root => root.rootName != graveyardName && ( includeDetached || root.isAttached() ) )\n\t\t\t.map( root => root.rootName );\n\t}\n\n\t/**\n\t * Used to register a post-fixer callback. A post-fixer mechanism guarantees that the features\n\t * will operate on a correct model state.\n\t *\n\t * An execution of a feature may lead to an incorrect document tree state. The callbacks are used to fix the document tree after\n\t * it has changed. Post-fixers are fired just after all changes from the outermost change block were applied but\n\t * before the {@link module:engine/model/document~Document#event:change change event} is fired. If a post-fixer callback made\n\t * a change, it should return `true`. When this happens, all post-fixers are fired again to check if something else should\n\t * not be fixed in the new document tree state.\n\t *\n\t * As a parameter, a post-fixer callback receives a {@link module:engine/model/writer~Writer writer} instance connected with the\n\t * executed changes block. Thanks to that, all changes done by the callback will be added to the same\n\t * {@link module:engine/model/batch~Batch batch} (and undo step) as the original changes. This makes post-fixer changes transparent\n\t * for the user.\n\t *\n\t * An example of a post-fixer is a callback that checks if all the data were removed from the editor. If so, the\n\t * callback should add an empty paragraph so that the editor is never empty:\n\t *\n\t * ```ts\n\t * document.registerPostFixer( writer => {\n\t * \tconst changes = document.differ.getChanges();\n\t *\n\t * \t// Check if the changes lead to an empty root in the editor.\n\t * \tfor ( const entry of changes ) {\n\t * \t\tif ( entry.type == 'remove' && entry.position.root.isEmpty ) {\n\t * \t\t\twriter.insertElement( 'paragraph', entry.position.root, 0 );\n\t *\n\t * \t\t\t// It is fine to return early, even if multiple roots would need to be fixed.\n\t * \t\t\t// All post-fixers will be fired again, so if there are more empty roots, those will be fixed, too.\n\t * \t\t\treturn true;\n\t * \t\t}\n\t * \t}\n\t *\n\t * \treturn false;\n\t * } );\n\t * ```\n\t */\n\tpublic registerPostFixer( postFixer: ModelPostFixer ): void {\n\t\tthis._postFixers.add( postFixer );\n\t}\n\n\t/**\n\t * A custom `toJSON()` method to solve child-parent circular dependencies.\n\t *\n\t * @returns A clone of this object with the document property changed to a string.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json: any = clone( this );\n\n\t\t// Due to circular references we need to remove parent reference.\n\t\tjson.selection = '[engine.model.DocumentSelection]';\n\t\tjson.model = '[engine.model.Model]';\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Check if there were any changes done on document, and if so, call post-fixers,\n\t * fire `change` event for features and conversion and then reset the differ.\n\t * Fire `change:data` event when at least one operation or buffered marker changes the data.\n\t *\n\t * @internal\n\t * @fires change\n\t * @fires change:data\n\t * @param writer The writer on which post-fixers will be called.\n\t */\n\tpublic _handleChangeBlock( writer: Writer ): void {\n\t\tif ( this._hasDocumentChangedFromTheLastChangeBlock() ) {\n\t\t\tthis._callPostFixers( writer );\n\n\t\t\t// Refresh selection attributes according to the final position in the model after the change.\n\t\t\tthis.selection.refresh();\n\n\t\t\tif ( this.differ.hasDataChanges() ) {\n\t\t\t\tthis.fire<DocumentChangeEvent>( 'change:data', writer.batch );\n\t\t\t} else {\n\t\t\t\tthis.fire<DocumentChangeEvent>( 'change', writer.batch );\n\t\t\t}\n\n\t\t\t// Theoretically, it is not necessary to refresh selection after change event because\n\t\t\t// post-fixers are the last who should change the model, but just in case...\n\t\t\tthis.selection.refresh();\n\n\t\t\tthis.differ.reset();\n\t\t}\n\n\t\tthis._hasSelectionChangedFromTheLastChangeBlock = false;\n\t}\n\n\t/**\n\t * Returns whether there is a buffered change or if the selection has changed from the last\n\t * {@link module:engine/model/model~Model#enqueueChange `enqueueChange()` block}\n\t * or {@link module:engine/model/model~Model#change `change()` block}.\n\t *\n\t * @returns Returns `true` if document has changed from the last `change()` or `enqueueChange()` block.\n\t */\n\tprotected _hasDocumentChangedFromTheLastChangeBlock(): boolean {\n\t\treturn !this.differ.isEmpty || this._hasSelectionChangedFromTheLastChangeBlock;\n\t}\n\n\t/**\n\t * Returns the default root for this document which is either the first root that was added to the document using\n\t * {@link #createRoot} or the {@link #graveyard graveyard root} if no other roots were created.\n\t *\n\t * @returns The default root for this document.\n\t */\n\tprotected _getDefaultRoot(): RootElement {\n\t\tfor ( const root of this.roots ) {\n\t\t\tif ( root !== this.graveyard ) {\n\t\t\t\treturn root;\n\t\t\t}\n\t\t}\n\n\t\treturn this.graveyard;\n\t}\n\n\t/**\n\t * Returns the default range for this selection. The default range is a collapsed range that starts and ends\n\t * at the beginning of this selection's document {@link #_getDefaultRoot default root}.\n\t *\n\t * @internal\n\t */\n\tpublic _getDefaultRange(): Range {\n\t\tconst defaultRoot = this._getDefaultRoot();\n\t\tconst model = this.model;\n\t\tconst schema = model.schema;\n\n\t\t// Find the first position where the selection can be put.\n\t\tconst position = model.createPositionFromPath( defaultRoot, [ 0 ] );\n\t\tconst nearestRange = schema.getNearestSelectionRange( position );\n\n\t\t// If valid selection range is not found - return range collapsed at the beginning of the root.\n\t\treturn nearestRange || model.createRange( position );\n\t}\n\n\t/**\n\t * Checks whether a given {@link module:engine/model/range~Range range} is a valid range for\n\t * the {@link #selection document's selection}.\n\t *\n\t * @internal\n\t * @param range A range to check.\n\t * @returns `true` if `range` is valid, `false` otherwise.\n\t */\n\tpublic _validateSelectionRange( range: Range ): boolean {\n\t\treturn validateTextNodePosition( range.start ) && validateTextNodePosition( range.end );\n\t}\n\n\t/**\n\t * Performs post-fixer loops. Executes post-fixer callbacks as long as none of them has done any changes to the model.\n\t *\n\t * @param writer The writer on which post-fixer callbacks will be called.\n\t */\n\tprivate _callPostFixers( writer: Writer ) {\n\t\tlet wasFixed = false;\n\n\t\tdo {\n\t\t\tfor ( const callback of this._postFixers ) {\n\t\t\t\t// Ensure selection attributes are up to date before each post-fixer.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-engine/issues/1673.\n\t\t\t\t//\n\t\t\t\t// It might be good to refresh the selection after each operation but at the moment it leads\n\t\t\t\t// to losing attributes for composition or and spell checking\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-typing/issues/188\n\t\t\t\tthis.selection.refresh();\n\n\t\t\t\twasFixed = callback( writer );\n\n\t\t\t\tif ( wasFixed ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} while ( wasFixed );\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public log( version: any = null ): void {\n\t// @if CK_DEBUG_ENGINE // \tversion = version === null ? this.version : version;\n\t// @if CK_DEBUG_ENGINE // \tlogDocument( this, version );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n/**\n * Fired after each {@link module:engine/model/model~Model#enqueueChange `enqueueChange()` block} or the outermost\n * {@link module:engine/model/model~Model#change `change()` block} was executed and the document was changed\n * during that block's execution.\n *\n * The changes which this event will cover include:\n *\n * * document structure changes,\n * * selection changes,\n * * marker changes.\n *\n * If you want to be notified about all these changes, then simply listen to this event like this:\n *\n * ```ts\n * model.document.on( 'change', () => {\n * \tconsole.log( 'The document has changed!' );\n * } );\n * ```\n *\n * If, however, you only want to be notified about the data changes, then use `change:data` event,\n * which is fired for document structure changes and marker changes (which affects the data).\n *\n * ```ts\n * model.document.on( 'change:data', () => {\n * \tconsole.log( 'The data has changed!' );\n * } );\n * ```\n *\n * @eventName ~Document#change\n * @eventName ~Document#change:data\n * @param batch The batch that was used in the executed changes block.\n */\nexport type DocumentChangeEvent = {\n\tname: 'change' | 'change:data';\n\targs: [ batch: Batch ];\n};\n\n/**\n * Callback passed as an argument to the {@link module:engine/model/document~Document#registerPostFixer} method.\n */\nexport type ModelPostFixer = ( writer: Writer ) => boolean;\n\n/**\n * Checks whether given range boundary position is valid for document selection, meaning that is not between\n * unicode surrogate pairs or base character and combining marks.\n */\nfunction validateTextNodePosition( rangeBoundary: Position ) {\n\tconst textNode = rangeBoundary.textNode;\n\n\tif ( textNode ) {\n\t\tconst data = textNode.data;\n\t\tconst offset = rangeBoundary.offset - textNode.startOffset!;\n\n\t\treturn !isInsideSurrogatePair( data, offset ) && !isInsideCombinedSymbol( data, offset );\n\t}\n\n\treturn true;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/markercollection\n */\n\nimport TypeCheckable from './typecheckable';\nimport LiveRange, {\n\ttype LiveRangeChangeContentEvent,\n\ttype LiveRangeChangeRangeEvent,\n\ttype LiveRangeChangeEvent\n} from './liverange';\n\nimport type Position from './position';\nimport type Range from './range';\n\nimport { CKEditorError, EmitterMixin } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The collection of all {@link module:engine/model/markercollection~Marker markers} attached to the document.\n * It lets you {@link module:engine/model/markercollection~MarkerCollection#get get} markers or track them using\n * {@link module:engine/model/markercollection~MarkerCollection#event:update} event.\n *\n * To create, change or remove makers use {@link module:engine/model/writer~Writer model writers'} methods:\n * {@link module:engine/model/writer~Writer#addMarker} or {@link module:engine/model/writer~Writer#removeMarker}. Since\n * the writer is the only proper way to change the data model it is not possible to change markers directly using this\n * collection. All markers created by the writer will be automatically added to this collection.\n *\n * By default there is one marker collection available as {@link module:engine/model/model~Model#markers model property}.\n *\n * @see module:engine/model/markercollection~Marker\n */\nexport default class MarkerCollection extends EmitterMixin() implements Iterable<Marker> {\n\t/**\n\t * Stores {@link ~Marker markers} added to the collection.\n\t */\n\tprivate _markers: Map<string, Marker> = new Map();\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Iterates over all {@link ~Marker markers} added to the collection.\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<Marker> {\n\t\treturn this._markers.values();\n\t}\n\n\t/**\n\t * Checks if given {@link ~Marker marker} or marker name is in the collection.\n\t *\n\t * @param markerOrName Name of marker or marker instance to check.\n\t * @returns `true` if marker is in the collection, `false` otherwise.\n\t */\n\tpublic has( markerOrName: string | Marker ): boolean {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\n\t\treturn this._markers.has( markerName );\n\t}\n\n\t/**\n\t * Returns {@link ~Marker marker} with given `markerName`.\n\t *\n\t * @param markerName Name of marker to get.\n\t * @returns Marker with given name or `null` if such marker was\n\t * not added to the collection.\n\t */\n\tpublic get( markerName: string ): Marker | null {\n\t\treturn this._markers.get( markerName ) || null;\n\t}\n\n\t/**\n\t * Creates and adds a {@link ~Marker marker} to the `MarkerCollection` with given name on given\n\t * {@link module:engine/model/range~Range range}.\n\t *\n\t * If `MarkerCollection` already had a marker with given name (or {@link ~Marker marker} was passed), the marker in\n\t * collection is updated and {@link module:engine/model/markercollection~MarkerCollection#event:update} event is fired\n\t * but only if there was a change (marker range or {@link module:engine/model/markercollection~Marker#managedUsingOperations}\n\t * flag has changed.\n\t *\n\t * @internal\n\t * @fires update\n\t * @param markerOrName Name of marker to set or marker instance to update.\n\t * @param range Marker range.\n\t * @param managedUsingOperations Specifies whether the marker is managed using operations.\n\t * @param affectsData Specifies whether the marker affects the data produced by the data pipeline\n\t * (is persisted in the editor's data).\n\t * @returns `Marker` instance which was added or updated.\n\t */\n\tpublic _set(\n\t\tmarkerOrName: string | Marker,\n\t\trange: Range,\n\t\tmanagedUsingOperations: boolean = false,\n\t\taffectsData: boolean = false\n\t): Marker {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\n\t\tif ( markerName.includes( ',' ) ) {\n\t\t\t/**\n\t\t\t * Marker name cannot contain the \",\" character.\n\t\t\t *\n\t\t\t * @error markercollection-incorrect-marker-name\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'markercollection-incorrect-marker-name', this );\n\t\t}\n\n\t\tconst oldMarker = this._markers.get( markerName );\n\n\t\tif ( oldMarker ) {\n\t\t\tconst oldMarkerData = oldMarker.getData();\n\n\t\t\tconst oldRange = oldMarker.getRange();\n\t\t\tlet hasChanged = false;\n\n\t\t\tif ( !oldRange.isEqual( range ) ) {\n\t\t\t\toldMarker._attachLiveRange( LiveRange.fromRange( range ) );\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tif ( managedUsingOperations != oldMarker.managedUsingOperations ) {\n\t\t\t\toldMarker._managedUsingOperations = managedUsingOperations;\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tif ( typeof affectsData === 'boolean' && affectsData != oldMarker.affectsData ) {\n\t\t\t\toldMarker._affectsData = affectsData;\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tif ( hasChanged ) {\n\t\t\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, oldMarker, oldRange, range, oldMarkerData );\n\t\t\t}\n\n\t\t\treturn oldMarker;\n\t\t}\n\n\t\tconst liveRange = LiveRange.fromRange( range );\n\t\tconst marker = new Marker( markerName, liveRange, managedUsingOperations, affectsData );\n\n\t\tthis._markers.set( markerName, marker );\n\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, marker, null, range, { ...marker.getData(), range: null } );\n\n\t\treturn marker;\n\t}\n\n\t/**\n\t * Removes given {@link ~Marker marker} or a marker with given name from the `MarkerCollection`.\n\t *\n\t * @internal\n\t * @fires update\n\t * @param markerOrName Marker or name of a marker to remove.\n\t * @returns `true` if marker was found and removed, `false` otherwise.\n\t */\n\tpublic _remove( markerOrName: string | Marker ): boolean {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\t\tconst oldMarker = this._markers.get( markerName );\n\n\t\tif ( oldMarker ) {\n\t\t\tthis._markers.delete( markerName );\n\t\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, oldMarker, oldMarker.getRange(), null, oldMarker.getData() );\n\n\t\t\tthis._destroyMarker( oldMarker );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Fires an {@link module:engine/model/markercollection~MarkerCollection#event:update} event for the given {@link ~Marker marker}\n\t * but does not change the marker. Useful to force {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher downcast\n\t * conversion} for the marker.\n\t *\n\t * @internal\n\t * @fires update\n\t * @param markerOrName Marker or name of a marker to refresh.\n\t */\n\tpublic _refresh( markerOrName: string | Marker ): void {\n\t\tconst markerName = markerOrName instanceof Marker ? markerOrName.name : markerOrName;\n\t\tconst marker = this._markers.get( markerName );\n\n\t\tif ( !marker ) {\n\t\t\t/**\n\t\t\t * Marker with provided name does not exists.\n\t\t\t *\n\t\t\t * @error markercollection-refresh-marker-not-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'markercollection-refresh-marker-not-exists', this );\n\t\t}\n\n\t\tconst range = marker.getRange();\n\n\t\tthis.fire<MarkerCollectionUpdateEvent>( `update:${ markerName }`, marker, range, range, marker.getData() );\n\t}\n\n\t/**\n\t * Returns iterator that iterates over all markers, which ranges contain given {@link module:engine/model/position~Position position}.\n\t */\n\tpublic* getMarkersAtPosition( position: Position ): IterableIterator<Marker> {\n\t\tfor ( const marker of this ) {\n\t\t\tif ( marker.getRange().containsPosition( position ) ) {\n\t\t\t\tyield marker;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns iterator that iterates over all markers, which intersects with given {@link module:engine/model/range~Range range}.\n\t */\n\tpublic* getMarkersIntersectingRange( range: Range ): Iterable<Marker> {\n\t\tfor ( const marker of this ) {\n\t\t\tif ( marker.getRange().getIntersection( range ) !== null ) {\n\t\t\t\tyield marker;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Destroys marker collection and all markers inside it.\n\t */\n\tpublic destroy(): void {\n\t\tfor ( const marker of this._markers.values() ) {\n\t\t\tthis._destroyMarker( marker );\n\t\t}\n\n\t\tthis._markers = null as any;\n\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Iterates over all markers that starts with given `prefix`.\n\t *\n\t * ```ts\n\t * const markerFooA = markersCollection.set( 'foo:a', rangeFooA );\n\t * const markerFooB = markersCollection.set( 'foo:b', rangeFooB );\n\t * const markerBarA = markersCollection.set( 'bar:a', rangeBarA );\n\t * const markerFooBarA = markersCollection.set( 'foobar:a', rangeFooBarA );\n\t * Array.from( markersCollection.getMarkersGroup( 'foo' ) ); // [ markerFooA, markerFooB ]\n\t * Array.from( markersCollection.getMarkersGroup( 'a' ) ); // []\n\t * ```\n\t */\n\tpublic* getMarkersGroup( prefix: string ): IterableIterator<Marker> {\n\t\tfor ( const marker of this._markers.values() ) {\n\t\t\tif ( marker.name.startsWith( prefix + ':' ) ) {\n\t\t\t\tyield marker;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Destroys the marker.\n\t */\n\tprivate _destroyMarker( marker: Marker ): void {\n\t\tmarker.stopListening();\n\t\tmarker._detachLiveRange();\n\t}\n}\n\nexport interface MarkerData {\n\n\t/**\n\t * Marker range. `null` if the marker was removed.\n\t */\n\trange: Range | null;\n\n\t/**\n\t * A property defining if the marker affects data.\n\t */\n\taffectsData: boolean;\n\n\t/**\n\t * A property defining if the marker is managed using operations.\n\t */\n\tmanagedUsingOperations: boolean;\n}\n\n/**\n * `Marker` is a continuous part of the model (like a range), is named and represents some kind of information about the\n * marked part of the model document. In contrary to {@link module:engine/model/node~Node nodes}, which are building blocks of\n * the model document tree, markers are not stored directly in the document tree but in the\n * {@link module:engine/model/model~Model#markers model markers' collection}. Still, they are document data, by giving\n * additional meaning to the part of a model document between marker start and marker end.\n *\n * In this sense, markers are similar to adding and converting attributes on nodes. The difference is that attribute is\n * connected with a given node (e.g. a character is bold no matter if it gets moved or content around it changes).\n * Markers on the other hand are continuous ranges and are characterized by their start and end position. This means that\n * any character in the marker is marked by the marker. For example, if a character is moved outside of marker it stops being\n * \"special\" and the marker is shrunk. Similarly, when a character is moved into the marker from other place in document\n * model, it starts being \"special\" and the marker is enlarged.\n *\n * Another upside of markers is that finding marked part of document is fast and easy. Using attributes to mark some nodes\n * and then trying to find that part of document would require traversing whole document tree. Marker gives instant access\n * to the range which it is marking at the moment.\n *\n * Markers are built from a name and a range.\n *\n * Range of the marker is updated automatically when document changes, using\n * {@link module:engine/model/liverange~LiveRange live range} mechanism.\n *\n * Name is used to group and identify markers. Names have to be unique, but markers can be grouped by\n * using common prefixes, separated with `:`, for example: `user:john` or `search:3`. That's useful in term of creating\n * namespaces for custom elements (e.g. comments, highlights). You can use this prefixes in\n * {@link module:engine/model/markercollection~MarkerCollection#event:update} listeners to listen on changes in a group of markers.\n * For instance: `model.markers.on( 'update:user', callback );` will be called whenever any `user:*` markers changes.\n *\n * There are two types of markers.\n *\n * 1. Markers managed directly, without using operations. They are added directly by {@link module:engine/model/writer~Writer}\n * to the {@link module:engine/model/markercollection~MarkerCollection} without any additional mechanism. They can be used\n * as bookmarks or visual markers. They are great for showing results of the find, or select link when the focus is in the input.\n *\n * 1. Markers managed using operations. These markers are also stored in {@link module:engine/model/markercollection~MarkerCollection}\n * but changes in these markers is managed the same way all other changes in the model structure - using operations.\n * Therefore, they are handled in the undo stack and synchronized between clients if the collaboration plugin is enabled.\n * This type of markers is useful for solutions like spell checking or comments.\n *\n * Both type of them should be added / updated by {@link module:engine/model/writer~Writer#addMarker}\n * and removed by {@link module:engine/model/writer~Writer#removeMarker} methods.\n *\n * ```ts\n * model.change( ( writer ) => {\n * \tconst marker = writer.addMarker( name, { range, usingOperation: true } );\n *\n * \t// ...\n *\n * \twriter.removeMarker( marker );\n * } );\n * ```\n *\n * See {@link module:engine/model/writer~Writer} to find more examples.\n *\n * Since markers need to track change in the document, for efficiency reasons, it is best to create and keep as little\n * markers as possible and remove them as soon as they are not needed anymore.\n *\n * Markers can be downcasted and upcasted.\n *\n * Markers downcast happens on {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:addMarker} and\n * {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:removeMarker} events.\n * Use {@link module:engine/conversion/downcasthelpers downcast converters} or attach a custom converter to mentioned events.\n * For {@link module:engine/controller/datacontroller~DataController data pipeline}, marker should be downcasted to an element.\n * Then, it can be upcasted back to a marker. Again, use {@link module:engine/conversion/upcasthelpers upcast converters} or\n * attach a custom converter to {@link module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element}.\n *\n * `Marker` instances are created and destroyed only by {@link ~MarkerCollection MarkerCollection}.\n */\nclass Marker extends EmitterMixin( TypeCheckable ) {\n\t/**\n\t * Marker's name.\n\t */\n\tpublic readonly name: string;\n\n\t/**\n\t * Flag indicates if the marker is managed using operations or not.\n\t *\n\t * @internal\n\t */\n\tpublic _managedUsingOperations: boolean;\n\n\t/**\n\t * Specifies whether the marker affects the data produced by the data pipeline\n\t * (is persisted in the editor's data).\n\t *\n\t * @internal\n\t */\n\tpublic _affectsData: boolean;\n\n\t/**\n\t * Range marked by the marker.\n\t */\n\tprivate _liveRange: LiveRange | null;\n\n\t/**\n\t * Creates a marker instance.\n\t *\n\t * @param name Marker name.\n\t * @param liveRange Range marked by the marker.\n\t * @param managedUsingOperations Specifies whether the marker is managed using operations.\n\t * @param affectsData Specifies whether the marker affects the data produced by the data pipeline (is persisted in the editor's data).\n\t */\n\tconstructor(\n\t\tname: string,\n\t\tliveRange: LiveRange,\n\t\tmanagedUsingOperations: boolean,\n\t\taffectsData: boolean\n\t) {\n\t\tsuper();\n\n\t\tthis.name = name;\n\t\tthis._liveRange = this._attachLiveRange( liveRange );\n\t\tthis._managedUsingOperations = managedUsingOperations;\n\t\tthis._affectsData = affectsData;\n\t}\n\n\t/**\n\t * A value indicating if the marker is managed using operations.\n\t * See {@link ~Marker marker class description} to learn more about marker types.\n\t * See {@link module:engine/model/writer~Writer#addMarker}.\n\t */\n\tpublic get managedUsingOperations(): boolean {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._managedUsingOperations;\n\t}\n\n\t/**\n\t * A value indicating if the marker changes the data.\n\t */\n\tpublic get affectsData(): boolean {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._affectsData;\n\t}\n\n\t/**\n\t * Returns the marker data (properties defining the marker).\n\t */\n\tpublic getData(): MarkerData {\n\t\treturn {\n\t\t\trange: this.getRange(),\n\t\t\taffectsData: this.affectsData,\n\t\t\tmanagedUsingOperations: this.managedUsingOperations\n\t\t};\n\t}\n\n\t/**\n\t * Returns current marker start position.\n\t */\n\tpublic getStart(): Position {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._liveRange.start.clone();\n\t}\n\n\t/**\n\t * Returns current marker end position.\n\t */\n\tpublic getEnd(): Position {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._liveRange.end.clone();\n\t}\n\n\t/**\n\t * Returns a range that represents the current state of the marker.\n\t *\n\t * Keep in mind that returned value is a {@link module:engine/model/range~Range Range}, not a\n\t * {@link module:engine/model/liverange~LiveRange LiveRange}. This means that it is up-to-date and relevant only\n\t * until next model document change. Do not store values returned by this method. Instead, store {@link ~Marker#name}\n\t * and get `Marker` instance from {@link module:engine/model/markercollection~MarkerCollection MarkerCollection} every\n\t * time there is a need to read marker properties. This will guarantee that the marker has not been removed and\n\t * that it's data is up-to-date.\n\t */\n\tpublic getRange(): Range {\n\t\tif ( !this._liveRange ) {\n\t\t\tthrow new CKEditorError( 'marker-destroyed', this );\n\t\t}\n\n\t\treturn this._liveRange.toRange();\n\t}\n\n\t/**\n\t * Binds new live range to the marker and detach the old one if is attached.\n\t *\n\t * @internal\n\t * @param liveRange Live range to attach\n\t * @returns Attached live range.\n\t */\n\tpublic _attachLiveRange( liveRange: LiveRange ): LiveRange {\n\t\tif ( this._liveRange ) {\n\t\t\tthis._detachLiveRange();\n\t\t}\n\n\t\t// Delegating does not work with namespaces. Alternatively, we could delegate all events (using `*`).\n\t\tliveRange.delegate( 'change:range' ).to( this );\n\t\tliveRange.delegate( 'change:content' ).to( this );\n\n\t\tthis._liveRange = liveRange;\n\n\t\treturn liveRange;\n\t}\n\n\t/**\n\t * Unbinds and destroys currently attached live range.\n\t *\n\t * @internal\n\t */\n\tpublic _detachLiveRange(): void {\n\t\tthis._liveRange!.stopDelegating( 'change:range', this );\n\t\tthis._liveRange!.stopDelegating( 'change:content', this );\n\t\tthis._liveRange!.detach();\n\t\tthis._liveRange = null;\n\t}\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nMarker.prototype.is = function( type: string ): boolean {\n\treturn type === 'marker' || type === 'model:marker';\n};\n\nexport type { Marker };\n\n/**\n * Fired whenever {@link ~Marker#_liveRange marker range} is changed due to changes on {@link module:engine/model/document~Document}.\n * This is a delegated {@link module:engine/model/liverange~LiveRange#event:change:range LiveRange change:range event}.\n *\n * When marker is removed from {@link module:engine/model/markercollection~MarkerCollection MarkerCollection},\n * all event listeners listening to it should be removed. It is best to do it on\n * {@link module:engine/model/markercollection~MarkerCollection#event:update MarkerCollection update event}.\n *\n * @see module:engine/model/liverange~LiveRange#event:change:range\n * @eventName ~Marker#change:range\n */\nexport type MarkerChangeRangeEvent = LiveRangeChangeRangeEvent;\n\n/**\n * Fired whenever change on {@link module:engine/model/document~Document} is done inside {@link ~Marker#_liveRange marker range}.\n * This is a delegated {@link module:engine/model/liverange~LiveRange#event:change:content LiveRange change:content event}.\n *\n * When marker is removed from {@link module:engine/model/markercollection~MarkerCollection MarkerCollection},\n * all event listeners listening to it should be removed. It is best to do it on\n * {@link module:engine/model/markercollection~MarkerCollection#event:update MarkerCollection update event}.\n *\n * @see module:engine/model/liverange~LiveRange#event:change:content\n * @eventName ~Marker#change:content\n */\nexport type MarkerCollectionChangeContentEvent = LiveRangeChangeContentEvent;\n\n/**\n * Describes `change:range` or `change:content` event.\n */\nexport type MarkerChangeEvent = LiveRangeChangeEvent;\n\n/**\n * Fired whenever marker is added, updated or removed from `MarkerCollection`.\n *\n * @eventName ~MarkerCollection#update\n * @param marker Updated Marker.\n * @param oldRange Marker range before the update. When is not defined it\n * means that marker is just added.\n * @param newRange Marker range after update. When is not defined it\n * means that marker is just removed.\n * @param oldMarkerData Data of the marker before the change.\n */\nexport type MarkerCollectionUpdateEvent = {\n\tname: 'update' | `update:${ string }`;\n\targs: [ marker: Marker, oldRange: Range | null, newRange: Range | null, oldMarkerData: MarkerData ];\n};\n\n/**\n * Cannot use a {@link module:engine/model/markercollection~MarkerCollection#destroy destroyed marker} instance.\n *\n * @error marker-destroyed\n */\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/operation/detachoperation\n */\n\nimport Operation from './operation';\nimport Range from '../range';\nimport { _remove } from './utils';\n\nimport type Position from '../position';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const ModelRange = require( '../range' ).default;\n\n/**\n * Operation to permanently remove node from detached root.\n * Note this operation is only a local operation and won't be send to the other clients.\n */\nexport default class DetachOperation extends Operation {\n\t/**\n\t * Position before the first {@link module:engine/model/item~Item model item} to detach.\n\t */\n\tpublic sourcePosition: Position;\n\n\t/**\n\t * Offset size of moved range.\n\t */\n\tpublic howMany: number;\n\n\t// This class doesn't implement those abstract methods. Let's silence the compiler.\n\tdeclare public clone: never;\n\tdeclare public getReversed: never;\n\n\t/**\n\t * Creates an insert operation.\n\t *\n\t * @param sourcePosition Position before the first {@link module:engine/model/item~Item model item} to move.\n\t * @param howMany Offset size of moved range. Moved range will start from `sourcePosition` and end at\n\t * `sourcePosition` with offset shifted by `howMany`.\n\t */\n\tconstructor( sourcePosition: Position, howMany: number ) {\n\t\tsuper( null );\n\n\t\tthis.sourcePosition = sourcePosition.clone();\n\t\tthis.howMany = howMany;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic get type(): 'detach' {\n\t\treturn 'detach';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override toJSON(): unknown {\n\t\tconst json: any = super.toJSON();\n\n\t\tjson.sourcePosition = this.sourcePosition.toJSON();\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic override _validate(): void {\n\t\tif ( this.sourcePosition.root.document ) {\n\t\t\t/**\n\t\t\t * Cannot detach document node.\n\t\t\t *\n\t\t\t * @error detach-operation-on-document-node\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'detach-operation-on-document-node', this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t * @internal\n\t */\n\tpublic _execute(): void {\n\t\t_remove( Range._createFromPositionAndShift( this.sourcePosition, this.howMany ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static override get className(): string {\n\t\treturn 'DetachOperation';\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): string {\n\t// @if CK_DEBUG_ENGINE // \tconst range = ModelRange._createFromPositionAndShift( this.sourcePosition, this.howMany );\n\t// @if CK_DEBUG_ENGINE // \tconst nodes = Array.from( range.getItems() );\n\t// @if CK_DEBUG_ENGINE // \tconst nodeString = nodes.length > 1 ? `[ ${ nodes.length } ]` : nodes[ 0 ];\n\n\t// @if CK_DEBUG_ENGINE // \treturn `DetachOperation( ${ this.baseVersion } ): ${ nodeString } -> ${ range }`;\n\t// @if CK_DEBUG_ENGINE // }\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/documentfragment\n */\n\nimport TypeCheckable from './typecheckable';\nimport Element from './element';\nimport NodeList from './nodelist';\nimport Text from './text';\nimport TextProxy from './textproxy';\n\nimport type Item from './item';\nimport type Node from './node';\nimport type Range from './range';\n\nimport { isIterable } from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { stringifyMap } = require( '../dev-utils/utils' );\n\n/**\n * DocumentFragment represents a part of model which does not have a common root but its top-level nodes\n * can be seen as siblings. In other words, it is a detached part of model tree, without a root.\n *\n * DocumentFragment has own {@link module:engine/model/markercollection~MarkerCollection}. Markers from this collection\n * will be set to the {@link module:engine/model/model~Model#markers model markers} by a\n * {@link module:engine/model/writer~Writer#insert} function.\n */\nexport default class DocumentFragment extends TypeCheckable implements Iterable<Node> {\n\t/**\n\t * DocumentFragment static markers map. This is a list of names and {@link module:engine/model/range~Range ranges}\n\t * which will be set as Markers to {@link module:engine/model/model~Model#markers model markers collection}\n\t * when DocumentFragment will be inserted to the document.\n\t */\n\tpublic readonly markers: Map<string, Range> = new Map();\n\n\t/**\n\t * Artificial element name. Returns `undefined`. Added for compatibility reasons.\n\t */\n\tdeclare public name?: undefined;\n\n\t/**\n\t * Artificial root name. Returns `undefined`. Added for compatibility reasons.\n\t */\n\tdeclare public rootName?: undefined;\n\n\t/**\n\t * List of nodes contained inside the document fragment.\n\t */\n\tprivate readonly _children: NodeList = new NodeList();\n\n\t/**\n\t * Creates an empty `DocumentFragment`.\n\t *\n\t * **Note:** Constructor of this class shouldn't be used directly in the code.\n\t * Use the {@link module:engine/model/writer~Writer#createDocumentFragment} method instead.\n\t *\n\t * @internal\n\t * @param children Nodes to be contained inside the `DocumentFragment`.\n\t */\n\tconstructor( children?: Node | Iterable<Node> ) {\n\t\tsuper();\n\n\t\tif ( children ) {\n\t\t\tthis._insertChild( 0, children );\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all nodes contained inside this document fragment.\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<Node> {\n\t\treturn this.getChildren();\n\t}\n\n\t/**\n\t * Number of this document fragment's children.\n\t */\n\tpublic get childCount(): number {\n\t\treturn this._children.length;\n\t}\n\n\t/**\n\t * Sum of {@link module:engine/model/node~Node#offsetSize offset sizes} of all of this document fragment's children.\n\t */\n\tpublic get maxOffset(): number {\n\t\treturn this._children.maxOffset;\n\t}\n\n\t/**\n\t * Is `true` if there are no nodes inside this document fragment, `false` otherwise.\n\t */\n\tpublic get isEmpty(): boolean {\n\t\treturn this.childCount === 0;\n\t}\n\n\t/**\n\t * Artificial next sibling. Returns `null`. Added for compatibility reasons.\n\t */\n\tpublic get nextSibling(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Artificial previous sibling. Returns `null`. Added for compatibility reasons.\n\t */\n\tpublic get previousSibling(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Artificial root of `DocumentFragment`. Returns itself. Added for compatibility reasons.\n\t */\n\tpublic get root(): DocumentFragment {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Artificial parent of `DocumentFragment`. Returns `null`. Added for compatibility reasons.\n\t */\n\tpublic get parent(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Artificial owner of `DocumentFragment`. Returns `null`. Added for compatibility reasons.\n\t */\n\tpublic get document(): null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns `false` as `DocumentFragment` by definition is not attached to a document. Added for compatibility reasons.\n\t */\n\tpublic isAttached(): false {\n\t\treturn false;\n\t}\n\n\t/**\n\t * Returns empty array. Added for compatibility reasons.\n\t */\n\tpublic getAncestors(): Array<never> {\n\t\treturn [];\n\t}\n\n\t/**\n\t * Gets the child at the given index. Returns `null` if incorrect index was passed.\n\t *\n\t * @param index Index of child.\n\t * @returns Child node.\n\t */\n\tpublic getChild( index: number ): Node | null {\n\t\treturn this._children.getNode( index );\n\t}\n\n\t/**\n\t * Returns an iterator that iterates over all of this document fragment's children.\n\t */\n\tpublic getChildren(): IterableIterator<Node> {\n\t\treturn this._children[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Returns an index of the given child node. Returns `null` if given node is not a child of this document fragment.\n\t *\n\t * @param node Child node to look for.\n\t * @returns Child node's index.\n\t */\n\tpublic getChildIndex( node: Node ): number | null {\n\t\treturn this._children.getNodeIndex( node );\n\t}\n\n\t/**\n\t * Returns the starting offset of given child. Starting offset is equal to the sum of\n\t * {@link module:engine/model/node~Node#offsetSize offset sizes} of all node's siblings that are before it. Returns `null` if\n\t * given node is not a child of this document fragment.\n\t *\n\t * @param node Child node to look for.\n\t * @returns Child node's starting offset.\n\t */\n\tpublic getChildStartOffset( node: Node ): number | null {\n\t\treturn this._children.getNodeStartOffset( node );\n\t}\n\n\t/**\n\t * Returns path to a `DocumentFragment`, which is an empty array. Added for compatibility reasons.\n\t */\n\tpublic getPath(): Array<number> {\n\t\treturn [];\n\t}\n\n\t/**\n\t * Returns a descendant node by its path relative to this element.\n\t *\n\t * ```ts\n\t * // <this>a<b>c</b></this>\n\t * this.getNodeByPath( [ 0 ] );     // -> \"a\"\n\t * this.getNodeByPath( [ 1 ] );     // -> <b>\n\t * this.getNodeByPath( [ 1, 0 ] );  // -> \"c\"\n\t * ```\n\t *\n\t * @param relativePath Path of the node to find, relative to this element.\n\t */\n\tpublic getNodeByPath( relativePath: Array<number> ): Node | DocumentFragment {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias, consistent-this\n\t\tlet node: Node | DocumentFragment = this;\n\n\t\tfor ( const index of relativePath ) {\n\t\t\tnode = ( node as Element | DocumentFragment ).getChild( ( node as Element | DocumentFragment ).offsetToIndex( index ) )!;\n\t\t}\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Converts offset \"position\" to index \"position\".\n\t *\n\t * Returns index of a node that occupies given offset. If given offset is too low, returns `0`. If given offset is\n\t * too high, returns index after last child.\n\t *\n\t * ```ts\n\t * const textNode = new Text( 'foo' );\n\t * const pElement = new Element( 'p' );\n\t * const docFrag = new DocumentFragment( [ textNode, pElement ] );\n\t * docFrag.offsetToIndex( -1 ); // Returns 0, because offset is too low.\n\t * docFrag.offsetToIndex( 0 ); // Returns 0, because offset 0 is taken by `textNode` which is at index 0.\n\t * docFrag.offsetToIndex( 1 ); // Returns 0, because `textNode` has `offsetSize` equal to 3, so it occupies offset 1 too.\n\t * docFrag.offsetToIndex( 2 ); // Returns 0.\n\t * docFrag.offsetToIndex( 3 ); // Returns 1.\n\t * docFrag.offsetToIndex( 4 ); // Returns 2. There are no nodes at offset 4, so last available index is returned.\n\t * ```\n\t *\n\t * @param offset Offset to look for.\n\t * @returns Index of a node that occupies given offset.\n\t */\n\tpublic offsetToIndex( offset: number ): number {\n\t\treturn this._children.offsetToIndex( offset );\n\t}\n\n\t/**\n\t * Converts `DocumentFragment` instance to plain object and returns it.\n\t * Takes care of converting all of this document fragment's children.\n\t *\n\t * @returns `DocumentFragment` instance converted to plain object.\n\t */\n\tpublic toJSON(): unknown {\n\t\tconst json = [];\n\n\t\tfor ( const node of this._children ) {\n\t\t\tjson.push( node.toJSON() );\n\t\t}\n\n\t\treturn json;\n\t}\n\n\t/**\n\t * Creates a `DocumentFragment` instance from given plain object (i.e. parsed JSON string).\n\t * Converts `DocumentFragment` children to proper nodes.\n\t *\n\t * @param json Plain object to be converted to `DocumentFragment`.\n\t * @returns `DocumentFragment` instance created using given plain object.\n\t */\n\tpublic static fromJSON( json: any ): DocumentFragment {\n\t\tconst children = [];\n\n\t\tfor ( const child of json ) {\n\t\t\tif ( child.name ) {\n\t\t\t\t// If child has name property, it is an Element.\n\t\t\t\tchildren.push( Element.fromJSON( child ) );\n\t\t\t} else {\n\t\t\t\t// Otherwise, it is a Text node.\n\t\t\t\tchildren.push( Text.fromJSON( child ) );\n\t\t\t}\n\t\t}\n\n\t\treturn new DocumentFragment( children );\n\t}\n\n\t/**\n\t * {@link #_insertChild Inserts} one or more nodes at the end of this document fragment.\n\t *\n\t * @internal\n\t * @param items Items to be inserted.\n\t */\n\tpublic _appendChild( items: string | Item | Iterable<string | Item> ): void {\n\t\tthis._insertChild( this.childCount, items );\n\t}\n\n\t/**\n\t * Inserts one or more nodes at the given index and sets {@link module:engine/model/node~Node#parent parent} of these nodes\n\t * to this document fragment.\n\t *\n\t * @internal\n\t * @param index Index at which nodes should be inserted.\n\t * @param items Items to be inserted.\n\t */\n\tpublic _insertChild( index: number, items: string | Item | Iterable<string | Item> ): void {\n\t\tconst nodes = normalize( items );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t// If node that is being added to this element is already inside another element, first remove it from the old parent.\n\t\t\tif ( node.parent !== null ) {\n\t\t\t\tnode._remove();\n\t\t\t}\n\n\t\t\t( node as any ).parent = this;\n\t\t}\n\n\t\tthis._children._insertNodes( index, nodes );\n\t}\n\n\t/**\n\t * Removes one or more nodes starting at the given index\n\t * and sets {@link module:engine/model/node~Node#parent parent} of these nodes to `null`.\n\t *\n\t * @internal\n\t * @param index Index of the first node to remove.\n\t * @param howMany Number of nodes to remove.\n\t * @returns Array containing removed nodes.\n\t */\n\tpublic _removeChildren( index: number, howMany: number = 1 ): Array<Node> {\n\t\tconst nodes = this._children._removeNodes( index, howMany );\n\n\t\tfor ( const node of nodes ) {\n\t\t\t( node as any ).parent = null;\n\t\t}\n\n\t\treturn nodes;\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public override toString(): 'documentFragment' {\n\t// @if CK_DEBUG_ENGINE // \treturn 'documentFragment';\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public log(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( 'ModelDocumentFragment: ' + this );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public printTree(): string {\n\t// @if CK_DEBUG_ENGINE // \tlet string = 'ModelDocumentFragment: [';\n\n\t// @if CK_DEBUG_ENGINE // \tfor ( const child of this.getChildren() as any ) {\n\t// @if CK_DEBUG_ENGINE // \t\tstring += '\\n';\n\n\t// @if CK_DEBUG_ENGINE // \t\tif ( child.is( '$text' ) ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\tconst textAttrs = stringifyMap( child._attrs );\n\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += '\\t'.repeat( 1 );\n\n\t// @if CK_DEBUG_ENGINE // \t\t\tif ( textAttrs !== '' ) {\n\t// @if CK_DEBUG_ENGINE // \t\t\t\tstring += `<$text${ textAttrs }>` + child.data + '</$text>';\n\t// @if CK_DEBUG_ENGINE // \t\t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\t\tstring += child.data;\n\t// @if CK_DEBUG_ENGINE // \t\t\t}\n\t// @if CK_DEBUG_ENGINE // \t\t} else {\n\t// @if CK_DEBUG_ENGINE // \t\t\tstring += child.printTree( 1 );\n\t// @if CK_DEBUG_ENGINE // \t\t}\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \tstring += '\\n]';\n\n\t// @if CK_DEBUG_ENGINE // \treturn string;\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public logTree(): void {\n\t// @if CK_DEBUG_ENGINE // \tconsole.log( this.printTree() );\n\t// @if CK_DEBUG_ENGINE // }\n}\n\n// The magic of type inference using `is` method is centralized in `TypeCheckable` class.\n// Proper overload would interfere with that.\nDocumentFragment.prototype.is = function( type: string ): boolean {\n\treturn type === 'documentFragment' || type === 'model:documentFragment';\n};\n\n/**\n * Converts strings to Text and non-iterables to arrays.\n */\nfunction normalize( nodes: string | Item | Iterable<string | Item> ): Iterable<Node> {\n\t// Separate condition because string is iterable.\n\tif ( typeof nodes == 'string' ) {\n\t\treturn [ new Text( nodes ) ];\n\t}\n\n\tif ( !isIterable( nodes ) ) {\n\t\tnodes = [ nodes ];\n\t}\n\n\t// Array.from to enable .map() on non-arrays.\n\treturn Array.from( nodes )\n\t\t.map( node => {\n\t\t\tif ( typeof node == 'string' ) {\n\t\t\t\treturn new Text( node );\n\t\t\t}\n\n\t\t\tif ( node instanceof TextProxy ) {\n\t\t\t\treturn new Text( node.data, node.getAttributes() );\n\t\t\t}\n\n\t\t\treturn node;\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/writer\n */\n\nimport AttributeOperation from './operation/attributeoperation';\nimport DetachOperation from './operation/detachoperation';\nimport InsertOperation from './operation/insertoperation';\nimport MarkerOperation from './operation/markeroperation';\nimport MergeOperation from './operation/mergeoperation';\nimport MoveOperation from './operation/moveoperation';\nimport RenameOperation from './operation/renameoperation';\nimport RootAttributeOperation from './operation/rootattributeoperation';\nimport RootOperation from './operation/rootoperation';\nimport SplitOperation from './operation/splitoperation';\n\nimport DocumentFragment from './documentfragment';\nimport DocumentSelection from './documentselection';\nimport Element from './element';\nimport Position, { type PositionOffset, type PositionStickiness } from './position';\nimport Range from './range';\nimport RootElement from './rootelement';\nimport Text from './text';\n\nimport type { Marker } from './markercollection';\nimport type { default as Selection, PlaceOrOffset, Selectable } from './selection';\nimport type Batch from './batch';\nimport type Item from './item';\nimport type Model from './model';\nimport type { default as Node, NodeAttributes } from './node';\n\nimport { CKEditorError, logWarning, toMap } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The model can only be modified by using the writer. It should be used whenever you want to create a node, modify\n * child nodes, attributes or text, set the selection's position and its attributes.\n *\n * The instance of the writer is only available in the {@link module:engine/model/model~Model#change `change()`} or\n * {@link module:engine/model/model~Model#enqueueChange `enqueueChange()`}.\n *\n * ```ts\n * model.change( writer => {\n * \twriter.insertText( 'foo', paragraph, 'end' );\n * } );\n * ```\n *\n * Note that the writer should never be stored and used outside of the `change()` and\n * `enqueueChange()` blocks.\n *\n * Note that writer's methods do not check the {@link module:engine/model/schema~Schema}. It is possible\n * to create incorrect model structures by using the writer. Read more about in\n * {@glink framework/deep-dive/schema#who-checks-the-schema \"Who checks the schema?\"}.\n *\n * @see module:engine/model/model~Model#change\n * @see module:engine/model/model~Model#enqueueChange\n */\nexport default class Writer {\n\t/**\n\t * Instance of the model on which this writer operates.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * The batch to which this writer will add changes.\n\t */\n\tpublic readonly batch: Batch;\n\n\t/**\n\t * Creates a writer instance.\n\t *\n\t * **Note:** It is not recommended to use it directly. Use {@link module:engine/model/model~Model#change `Model#change()`} or\n\t * {@link module:engine/model/model~Model#enqueueChange `Model#enqueueChange()`} instead.\n\t *\n\t * @internal\n\t */\n\tconstructor( model: Model, batch: Batch ) {\n\t\tthis.model = model;\n\t\tthis.batch = batch;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/model/text~Text text node}.\n\t *\n\t * ```ts\n\t * writer.createText( 'foo' );\n\t * writer.createText( 'foo', { bold: true } );\n\t * ```\n\t *\n\t * @param data Text data.\n\t * @param attributes Text attributes.\n\t * @returns {module:engine/model/text~Text} Created text node.\n\t */\n\tpublic createText(\n\t\tdata: string,\n\t\tattributes?: NodeAttributes\n\t): Text {\n\t\treturn new Text( data, attributes );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/model/element~Element element}.\n\t *\n\t * ```ts\n\t * writer.createElement( 'paragraph' );\n\t * writer.createElement( 'paragraph', { alignment: 'center' } );\n\t * ```\n\t *\n\t * @param name Name of the element.\n\t * @param attributes Elements attributes.\n\t * @returns Created element.\n\t */\n\tpublic createElement(\n\t\tname: string,\n\t\tattributes?: NodeAttributes\n\t): Element {\n\t\treturn new Element( name, attributes );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/model/documentfragment~DocumentFragment document fragment}.\n\t *\n\t * @returns Created document fragment.\n\t */\n\tpublic createDocumentFragment(): DocumentFragment {\n\t\treturn new DocumentFragment();\n\t}\n\n\t/**\n\t * Creates a copy of the element and returns it. Created element has the same name and attributes as the original element.\n\t * If clone is deep, the original element's children are also cloned. If not, then empty element is returned.\n\t *\n\t * @param element The element to clone.\n\t * @param deep If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any child.\n\t */\n\tpublic cloneElement( element: Element, deep: boolean = true ): Element {\n\t\treturn element._clone( deep );\n\t}\n\n\t/**\n\t * Inserts item on given position.\n\t *\n\t * ```ts\n\t * const paragraph = writer.createElement( 'paragraph' );\n\t * writer.insert( paragraph, position );\n\t * ```\n\t *\n\t * Instead of using position you can use parent and offset:\n\t *\n\t * ```ts\n\t * const text = writer.createText( 'foo' );\n\t * writer.insert( text, paragraph, 5 );\n\t * ```\n\t *\n\t * You can also use `end` instead of the offset to insert at the end:\n\t *\n\t * ```ts\n\t * const text = writer.createText( 'foo' );\n\t * writer.insert( text, paragraph, 'end' );\n\t * ```\n\t *\n\t * Or insert before or after another element:\n\t *\n\t * ```ts\n\t * const paragraph = writer.createElement( 'paragraph' );\n\t * writer.insert( paragraph, anotherParagraph, 'after' );\n\t * ```\n\t *\n\t * These parameters works the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * Note that if the item already has parent it will be removed from the previous parent.\n\t *\n\t * Note that you cannot re-insert a node from a document to a different document or a document fragment. In this case,\n\t * `model-writer-insert-forbidden-move` is thrown.\n\t *\n\t * If you want to move {@link module:engine/model/range~Range range} instead of an\n\t * {@link module:engine/model/item~Item item} use {@link module:engine/model/writer~Writer#move `Writer#move()`}.\n\t *\n\t * **Note:** For a paste-like content insertion mechanism see\n\t * {@link module:engine/model/model~Model#insertContent `model.insertContent()`}.\n\t *\n\t * @param item Item or document fragment to insert.\n\t * @param offset Offset or one of the flags. Used only when second parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insert(\n\t\titem: Item | DocumentFragment,\n\t\titemOrPosition: Item | DocumentFragment | Position,\n\t\toffset: PositionOffset = 0\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( item instanceof Text && item.data == '' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = Position._createAt( itemOrPosition, offset );\n\n\t\t// If item has a parent already.\n\t\tif ( item.parent ) {\n\t\t\t// We need to check if item is going to be inserted within the same document.\n\t\t\tif ( isSameTree( item.root, position.root ) ) {\n\t\t\t\t// If it's we just need to move it.\n\t\t\t\tthis.move( Range._createOn( item ), position );\n\n\t\t\t\treturn;\n\t\t\t}\n\t\t\t// If it isn't the same root.\n\t\t\telse {\n\t\t\t\tif ( item.root.document ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * Cannot move a node from a document to a different tree.\n\t\t\t\t\t * It is forbidden to move a node that was already in a document outside of it.\n\t\t\t\t\t *\n\t\t\t\t\t * @error model-writer-insert-forbidden-move\n\t\t\t\t\t */\n\t\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t\t'model-writer-insert-forbidden-move',\n\t\t\t\t\t\tthis\n\t\t\t\t\t);\n\t\t\t\t} else {\n\t\t\t\t\t// Move between two different document fragments or from document fragment to a document is possible.\n\t\t\t\t\t// In that case, remove the item from it's original parent.\n\t\t\t\t\tthis.remove( item );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst version = position.root.document ? position.root.document.version : null;\n\n\t\tconst insert = new InsertOperation( position, item, version );\n\n\t\tif ( item instanceof Text ) {\n\t\t\tinsert.shouldReceiveAttributes = true;\n\t\t}\n\n\t\tthis.batch.addOperation( insert );\n\t\tthis.model.applyOperation( insert );\n\n\t\t// When element is a DocumentFragment we need to move its markers to Document#markers.\n\t\tif ( item instanceof DocumentFragment ) {\n\t\t\tfor ( const [ markerName, markerRange ] of item.markers ) {\n\t\t\t\t// We need to migrate marker range from DocumentFragment to Document.\n\t\t\t\tconst rangeRootPosition = Position._createAt( markerRange.root, 0 );\n\t\t\t\tconst range = new Range(\n\t\t\t\t\tmarkerRange.start._getCombined( rangeRootPosition, position ),\n\t\t\t\t\tmarkerRange.end._getCombined( rangeRootPosition, position )\n\t\t\t\t);\n\n\t\t\t\tconst options = { range, usingOperation: true, affectsData: true };\n\n\t\t\t\tif ( this.model.markers.has( markerName ) ) {\n\t\t\t\t\tthis.updateMarker( markerName, options );\n\t\t\t\t} else {\n\t\t\t\t\tthis.addMarker( markerName, options );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Creates and inserts text on given position.\n\t *\n\t * ```ts\n\t * writer.insertText( 'foo', position );\n\t * ```\n\t *\n\t * Instead of using position you can use parent and offset or define that text should be inserted at the end\n\t * or before or after other node:\n\t *\n\t * ```ts\n\t * // Inserts 'foo' in paragraph, at offset 5:\n\t * writer.insertText( 'foo', paragraph, 5 );\n\t * // Inserts 'foo' at the end of a paragraph:\n\t * writer.insertText( 'foo', paragraph, 'end' );\n\t * // Inserts 'foo' after an image:\n\t * writer.insertText( 'foo', image, 'after' );\n\t * ```\n\t *\n\t * These parameters work in the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * @label WITHOUT_ATTRIBUTES\n\t * @param text Text data.\n\t * @param offset Offset or one of the flags. Used only when second parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insertText(\n\t\ttext: string,\n\t\titemOrPosition?: Item | Position,\n\t\toffset?: PositionOffset\n\t): void;\n\n\t/**\n\t * Creates and inserts text with specified attributes on given position.\n\t *\n\t * ```ts\n\t * writer.insertText( 'foo', { bold: true }, position );\n\t * ```\n\t *\n\t * Instead of using position you can use parent and offset or define that text should be inserted at the end\n\t * or before or after other node:\n\t *\n\t * ```ts\n\t * // Inserts 'foo' in paragraph, at offset 5:\n\t * writer.insertText( 'foo', { bold: true }, paragraph, 5 );\n\t * // Inserts 'foo' at the end of a paragraph:\n\t * writer.insertText( 'foo', { bold: true }, paragraph, 'end' );\n\t * // Inserts 'foo' after an image:\n\t * writer.insertText( 'foo', { bold: true }, image, 'after' );\n\t * ```\n\t *\n\t * These parameters work in the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * @label WITH_ATTRIBUTES\n\t * @param text Text data.\n\t * @param attributes Text attributes.\n\t * @param offset Offset or one of the flags. Used only when third parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insertText(\n\t\ttext: string,\n\t\tattributes?: NodeAttributes,\n\t\titemOrPosition?: Item | Position,\n\t\toffset?: PositionOffset\n\t): void;\n\n\tpublic insertText(\n\t\ttext: string,\n\t\tattributes?: any, // Too complicated when not using `any`.\n\t\titemOrPosition?: any, // Too complicated when not using `any`.\n\t\toffset?: any // Too complicated when not using `any`.\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element || attributes instanceof Position ) {\n\t\t\tthis.insert( this.createText( text ), attributes, itemOrPosition );\n\t\t} else {\n\t\t\tthis.insert( this.createText( text, attributes ), itemOrPosition, offset );\n\t\t}\n\t}\n\n\t/**\n\t * Creates and inserts element on given position. You can optionally set attributes:\n\t *\n\t * ```ts\n\t * writer.insertElement( 'paragraph', position );\n\t * ```\n\t *\n\t * Instead of using position you can use parent and offset or define that text should be inserted at the end\n\t * or before or after other node:\n\t *\n\t * ```ts\n\t * // Inserts paragraph in the root at offset 5:\n\t * writer.insertElement( 'paragraph', root, 5 );\n\t * // Inserts paragraph at the end of a blockquote:\n\t * writer.insertElement( 'paragraph', blockquote, 'end' );\n\t * // Inserts after an image:\n\t * writer.insertElement( 'paragraph', image, 'after' );\n\t * ```\n\t *\n\t * These parameters works the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * @label WITHOUT_ATTRIBUTES\n\t * @param name Name of the element.\n\t * @param offset Offset or one of the flags. Used only when second parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insertElement(\n\t\tname: string,\n\t\titemOrPosition: Item | DocumentFragment | Position,\n\t\toffset?: PositionOffset\n\t): void;\n\n\t/**\n\t * Creates and inserts element with specified attributes on given position.\n\t *\n\t * ```ts\n\t * writer.insertElement( 'paragraph', { alignment: 'center' }, position );\n\t * ```\n\t *\n\t * Instead of using position you can use parent and offset or define that text should be inserted at the end\n\t * or before or after other node:\n\t *\n\t * ```ts\n\t * // Inserts paragraph in the root at offset 5:\n\t * writer.insertElement( 'paragraph', { alignment: 'center' }, root, 5 );\n\t * // Inserts paragraph at the end of a blockquote:\n\t * writer.insertElement( 'paragraph', { alignment: 'center' }, blockquote, 'end' );\n\t * // Inserts after an image:\n\t * writer.insertElement( 'paragraph', { alignment: 'center' }, image, 'after' );\n\t * ```\n\t *\n\t * These parameters works the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * @label WITH_ATTRIBUTES\n\t * @param name Name of the element.\n\t * @param attributes Elements attributes.\n\t * @param offset Offset or one of the flags. Used only when third parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic insertElement(\n\t\tname: string,\n\t\tattributes: NodeAttributes,\n\t\titemOrPosition: Item | DocumentFragment | Position,\n\t\toffset?: PositionOffset\n\t): void;\n\n\tpublic insertElement(\n\t\tname: string,\n\t\tattributes: any, // Too complicated when not using `any`.\n\t\titemOrPositionOrOffset?: any, // Too complicated when not using `any`.\n\t\toffset?: any // Too complicated when not using `any`.\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element || attributes instanceof Position ) {\n\t\t\tthis.insert( this.createElement( name ), attributes, itemOrPositionOrOffset );\n\t\t} else {\n\t\t\tthis.insert( this.createElement( name, attributes ), itemOrPositionOrOffset, offset );\n\t\t}\n\t}\n\n\t/**\n\t * Inserts item at the end of the given parent.\n\t *\n\t * ```ts\n\t * const paragraph = writer.createElement( 'paragraph' );\n\t * writer.append( paragraph, root );\n\t * ```\n\t *\n\t * Note that if the item already has parent it will be removed from the previous parent.\n\t *\n\t * If you want to move {@link module:engine/model/range~Range range} instead of an\n\t * {@link module:engine/model/item~Item item} use {@link module:engine/model/writer~Writer#move `Writer#move()`}.\n\t *\n\t * @param item Item or document fragment to insert.\n\t */\n\tpublic append( item: Item | DocumentFragment, parent: Element | DocumentFragment ): void {\n\t\tthis.insert( item, parent, 'end' );\n\t}\n\n\t/**\n\t * Creates text node and inserts it at the end of the parent.\n\t *\n\t * ```ts\n\t * writer.appendText( 'foo', paragraph );\n\t * ```\n\t *\n\t * @label WITHOUT_ATTRIBUTES\n\t * @param text Text data.\n\t */\n\tpublic appendText(\n\t\ttext: string,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\n\t/**\n\t * Creates text node with specified attributes and inserts it at the end of the parent.\n\t *\n\t * ```ts\n\t * writer.appendText( 'foo', { bold: true }, paragraph );\n\t * ```\n\t *\n\t * @label WITH_ATTRIBUTES\n\t * @param text Text data.\n\t * @param attributes Text attributes.\n\t */\n\tpublic appendText(\n\t\ttext: string,\n\t\tattributes: NodeAttributes,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\n\tpublic appendText(\n\t\ttext: string,\n\t\tattributes: NodeAttributes | Element | DocumentFragment,\n\t\tparent?: Element | DocumentFragment\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element ) {\n\t\t\tthis.insert( this.createText( text ), attributes, 'end' );\n\t\t} else {\n\t\t\tthis.insert( this.createText( text, attributes ), parent!, 'end' );\n\t\t}\n\t}\n\n\t/**\n\t * Creates element and inserts it at the end of the parent.\n\t *\n\t * ```ts\n\t * writer.appendElement( 'paragraph', root );\n\t * ```\n\t *\n\t * @label WITHOUT_ATTRIBUTES\n\t * @param name Name of the element.\n\t */\n\tpublic appendElement(\n\t\tname: string,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\n\t/**\n\t * Creates element with specified attributes and inserts it at the end of the parent.\n\t *\n\t * ```ts\n\t * writer.appendElement( 'paragraph', { alignment: 'center' }, root );\n\t * ```\n\t *\n\t * @label WITH_ATTRIBUTES\n\t * @param name Name of the element.\n\t * @param attributes Elements attributes.\n\t */\n\tpublic appendElement(\n\t\tname: string,\n\t\tattributes: NodeAttributes,\n\t\tparent: Element | DocumentFragment\n\t): void;\n\n\tpublic appendElement(\n\t\tname: string,\n\t\tattributes: NodeAttributes | Element | DocumentFragment,\n\t\tparent?: Element | DocumentFragment\n\t): void {\n\t\tif ( attributes instanceof DocumentFragment || attributes instanceof Element ) {\n\t\t\tthis.insert( this.createElement( name ), attributes, 'end' );\n\t\t} else {\n\t\t\tthis.insert( this.createElement( name, attributes ), parent!, 'end' );\n\t\t}\n\t}\n\n\t/**\n\t * Sets value of the attribute with given key on a {@link module:engine/model/item~Item model item}\n\t * or on a {@link module:engine/model/range~Range range}.\n\t *\n\t * @param key Attribute key.\n\t * @param value Attribute new value.\n\t * @param itemOrRange Model item or range on which the attribute will be set.\n\t */\n\tpublic setAttribute( key: string, value: unknown, itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( itemOrRange instanceof Range ) {\n\t\t\tconst ranges = itemOrRange.getMinimalFlatRanges();\n\n\t\t\tfor ( const range of ranges ) {\n\t\t\t\tsetAttributeOnRange( this, key, value, range );\n\t\t\t}\n\t\t} else {\n\t\t\tsetAttributeOnItem( this, key, value, itemOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Sets values of attributes on a {@link module:engine/model/item~Item model item}\n\t * or on a {@link module:engine/model/range~Range range}.\n\t *\n\t * ```ts\n\t * writer.setAttributes( {\n\t * \tbold: true,\n\t * \titalic: true\n\t * }, range );\n\t * ```\n\t *\n\t * @param attributes Attributes keys and values.\n\t * @param itemOrRange Model item or range on which the attributes will be set.\n\t */\n\tpublic setAttributes(\n\t\tattributes: NodeAttributes,\n\t\titemOrRange: Item | Range\n\t): void {\n\t\tfor ( const [ key, val ] of toMap( attributes ) ) {\n\t\t\tthis.setAttribute( key, val, itemOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Removes an attribute with given key from a {@link module:engine/model/item~Item model item}\n\t * or from a {@link module:engine/model/range~Range range}.\n\t *\n\t * @param key Attribute key.\n\t * @param itemOrRange Model item or range from which the attribute will be removed.\n\t */\n\tpublic removeAttribute( key: string, itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( itemOrRange instanceof Range ) {\n\t\t\tconst ranges = itemOrRange.getMinimalFlatRanges();\n\n\t\t\tfor ( const range of ranges ) {\n\t\t\t\tsetAttributeOnRange( this, key, null, range );\n\t\t\t}\n\t\t} else {\n\t\t\tsetAttributeOnItem( this, key, null, itemOrRange );\n\t\t}\n\t}\n\n\t/**\n\t * Removes all attributes from all elements in the range or from the given item.\n\t *\n\t * @param itemOrRange Model item or range from which all attributes will be removed.\n\t */\n\tpublic clearAttributes( itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst removeAttributesFromItem = ( item: Item ) => {\n\t\t\tfor ( const attribute of item.getAttributeKeys() ) {\n\t\t\t\tthis.removeAttribute( attribute, item );\n\t\t\t}\n\t\t};\n\n\t\tif ( !( itemOrRange instanceof Range ) ) {\n\t\t\tremoveAttributesFromItem( itemOrRange );\n\t\t} else {\n\t\t\tfor ( const item of itemOrRange.getItems() ) {\n\t\t\t\tremoveAttributesFromItem( item );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Moves all items in the source range to the target position.\n\t *\n\t * ```ts\n\t * writer.move( sourceRange, targetPosition );\n\t * ```\n\t *\n\t * Instead of the target position you can use parent and offset or define that range should be moved to the end\n\t * or before or after chosen item:\n\t *\n\t * ```ts\n\t * // Moves all items in the range to the paragraph at offset 5:\n\t * writer.move( sourceRange, paragraph, 5 );\n\t * // Moves all items in the range to the end of a blockquote:\n\t * writer.move( sourceRange, blockquote, 'end' );\n\t * // Moves all items in the range to a position after an image:\n\t * writer.move( sourceRange, image, 'after' );\n\t * ```\n\t *\n\t * These parameters work the same way as {@link #createPositionAt `writer.createPositionAt()`}.\n\t *\n\t * Note that items can be moved only within the same tree. It means that you can move items within the same root\n\t * (element or document fragment) or between {@link module:engine/model/document~Document#roots documents roots},\n\t * but you can not move items from document fragment to the document or from one detached element to another. Use\n\t * {@link module:engine/model/writer~Writer#insert} in such cases.\n\t *\n\t * @param range Source range.\n\t * @param offset Offset or one of the flags. Used only when second parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic move(\n\t\trange: Range,\n\t\titemOrPosition: Item | Position,\n\t\toffset?: PositionOffset\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !( range instanceof Range ) ) {\n\t\t\t/**\n\t\t\t * Invalid range to move.\n\t\t\t *\n\t\t\t * @error writer-move-invalid-range\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-move-invalid-range', this );\n\t\t}\n\n\t\tif ( !range.isFlat ) {\n\t\t\t/**\n\t\t\t * Range to move is not flat.\n\t\t\t *\n\t\t\t * @error writer-move-range-not-flat\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-move-range-not-flat', this );\n\t\t}\n\n\t\tconst position = Position._createAt( itemOrPosition, offset );\n\n\t\t// Do not move anything if the move target is same as moved range start.\n\t\tif ( position.isEqual( range.start ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If part of the marker is removed, create additional marker operation for undo purposes.\n\t\tthis._addOperationForAffectedMarkers( 'move', range );\n\n\t\tif ( !isSameTree( range.root, position.root ) ) {\n\t\t\t/**\n\t\t\t * Range is going to be moved within not the same document. Please use\n\t\t\t * {@link module:engine/model/writer~Writer#insert insert} instead.\n\t\t\t *\n\t\t\t * @error writer-move-different-document\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-move-different-document', this );\n\t\t}\n\n\t\tconst version = range.root.document ? range.root.document.version : null;\n\t\tconst operation = new MoveOperation( range.start, range.end.offset - range.start.offset, position, version );\n\n\t\tthis.batch.addOperation( operation );\n\t\tthis.model.applyOperation( operation );\n\t}\n\n\t/**\n\t * Removes given model {@link module:engine/model/item~Item item} or {@link module:engine/model/range~Range range}.\n\t *\n\t * @param itemOrRange Model item or range to remove.\n\t */\n\tpublic remove( itemOrRange: Item | Range ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst rangeToRemove = itemOrRange instanceof Range ? itemOrRange : Range._createOn( itemOrRange );\n\t\tconst ranges = rangeToRemove.getMinimalFlatRanges().reverse();\n\n\t\tfor ( const flat of ranges ) {\n\t\t\t// If part of the marker is removed, create additional marker operation for undo purposes.\n\t\t\tthis._addOperationForAffectedMarkers( 'move', flat );\n\n\t\t\tapplyRemoveOperation( flat.start, flat.end.offset - flat.start.offset, this.batch, this.model );\n\t\t}\n\t}\n\n\t/**\n\t * Merges two siblings at the given position.\n\t *\n\t * Node before and after the position have to be an element. Otherwise `writer-merge-no-element-before` or\n\t * `writer-merge-no-element-after` error will be thrown.\n\t *\n\t * @param position Position between merged elements.\n\t */\n\tpublic merge( position: Position ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst nodeBefore = position.nodeBefore;\n\t\tconst nodeAfter = position.nodeAfter;\n\n\t\t// If part of the marker is removed, create additional marker operation for undo purposes.\n\t\tthis._addOperationForAffectedMarkers( 'merge', position );\n\n\t\tif ( !( nodeBefore instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Node before merge position must be an element.\n\t\t\t *\n\t\t\t * @error writer-merge-no-element-before\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-merge-no-element-before', this );\n\t\t}\n\n\t\tif ( !( nodeAfter instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Node after merge position must be an element.\n\t\t\t *\n\t\t\t * @error writer-merge-no-element-after\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-merge-no-element-after', this );\n\t\t}\n\n\t\tif ( !position.root.document ) {\n\t\t\tthis._mergeDetached( position );\n\t\t} else {\n\t\t\tthis._merge( position );\n\t\t}\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionFromPath `Model#createPositionFromPath()`}.\n\t *\n\t * @param root Root of the position.\n\t * @param path Position path. See {@link module:engine/model/position~Position#path}.\n\t * @param stickiness Position stickiness. See {@link module:engine/model/position~PositionStickiness}.\n\t */\n\tpublic createPositionFromPath(\n\t\troot: Element | DocumentFragment,\n\t\tpath: ReadonlyArray<number>,\n\t\tstickiness?: PositionStickiness\n\t): Position {\n\t\treturn this.model.createPositionFromPath( root, path, stickiness );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionAt `Model#createPositionAt()`}.\n\t *\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic createPositionAt(\n\t\titemOrPosition: Item | Position | DocumentFragment,\n\t\toffset?: PositionOffset\n\t): Position {\n\t\treturn this.model.createPositionAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionAfter `Model#createPositionAfter()`}.\n\t *\n\t * @param item Item after which the position should be placed.\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn this.model.createPositionAfter( item );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createPositionBefore `Model#createPositionBefore()`}.\n\t *\n\t * @param item Item after which the position should be placed.\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn this.model.createPositionBefore( item );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createRange `Model#createRange()`}.\n\t *\n\t * @param start Start position.\n\t * @param end End position. If not set, range will be collapsed at `start` position.\n\t */\n\tpublic createRange( start: Position, end?: Position ): Range {\n\t\treturn this.model.createRange( start, end );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createRangeIn `Model#createRangeIn()`}.\n\t *\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic createRangeIn( element: Element | DocumentFragment ): Range {\n\t\treturn this.model.createRangeIn( element );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createRangeOn `Model#createRangeOn()`}.\n\t *\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic createRangeOn( element: Item ): Range {\n\t\treturn this.model.createRangeOn( element );\n\t}\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createSelection:NODE_OFFSET `Model#createSelection()`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic createSelection( selectable: Node, placeOrOffset: PlaceOrOffset, options?: { backward?: boolean } ): Selection;\n\n\t/**\n\t * Shortcut for {@link module:engine/model/model~Model#createSelection:SELECTABLE `Model#createSelection()`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic createSelection( selectable?: Exclude<Selectable, Node>, options?: { backward?: boolean } ): Selection;\n\n\tpublic createSelection( ...args: [ any?, any?, any? ] ): Selection {\n\t\treturn this.model.createSelection( ...args );\n\t}\n\n\t/**\n\t * Performs merge action in a detached tree.\n\t *\n\t * @param position Position between merged elements.\n\t */\n\tprivate _mergeDetached( position: Position ): void {\n\t\tconst nodeBefore = position.nodeBefore;\n\t\tconst nodeAfter = position.nodeAfter;\n\n\t\tthis.move( Range._createIn( nodeAfter as any ), Position._createAt( nodeBefore!, 'end' ) );\n\t\tthis.remove( nodeAfter! );\n\t}\n\n\t/**\n\t * Performs merge action in a non-detached tree.\n\t *\n\t * @param position Position between merged elements.\n\t */\n\tprivate _merge( position: Position ): void {\n\t\tconst targetPosition = Position._createAt( position.nodeBefore!, 'end' );\n\t\tconst sourcePosition = Position._createAt( position.nodeAfter!, 0 );\n\n\t\tconst graveyard = position.root.document!.graveyard;\n\t\tconst graveyardPosition = new Position( graveyard, [ 0 ] );\n\n\t\tconst version = position.root.document!.version;\n\n\t\tconst merge = new MergeOperation(\n\t\t\tsourcePosition,\n\t\t\t( position.nodeAfter as any ).maxOffset,\n\t\t\ttargetPosition,\n\t\t\tgraveyardPosition,\n\t\t\tversion\n\t\t);\n\n\t\tthis.batch.addOperation( merge );\n\t\tthis.model.applyOperation( merge );\n\t}\n\n\t/**\n\t * Renames the given element.\n\t *\n\t * @param element The element to rename.\n\t * @param newName New element name.\n\t */\n\tpublic rename( element: Element, newName: string ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !( element instanceof Element ) ) {\n\t\t\t/**\n\t\t\t * Trying to rename an object which is not an instance of Element.\n\t\t\t *\n\t\t\t * @error writer-rename-not-element-instance\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'writer-rename-not-element-instance',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tconst version = element.root.document ? element.root.document.version : null;\n\t\tconst renameOperation = new RenameOperation( Position._createBefore( element ), element.name, newName, version );\n\n\t\tthis.batch.addOperation( renameOperation );\n\t\tthis.model.applyOperation( renameOperation );\n\t}\n\n\t/**\n\t * Splits elements starting from the given position and going to the top of the model tree as long as given\n\t * `limitElement` is reached. When `limitElement` is not defined then only the parent of the given position will be split.\n\t *\n\t * The element needs to have a parent. It cannot be a root element nor a document fragment.\n\t * The `writer-split-element-no-parent` error will be thrown if you try to split an element with no parent.\n\t *\n\t * @param position Position of split.\n\t * @param limitElement Stop splitting when this element will be reached.\n\t * @returns Split result with properties:\n\t * * `position` - Position between split elements.\n\t * * `range` - Range that stars from the end of the first split element and ends at the beginning of the first copy element.\n\t */\n\tpublic split( position: Position, limitElement?: Node | DocumentFragment ): { position: Position; range: Range } {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tlet splitElement = position.parent;\n\n\t\tif ( !splitElement.parent ) {\n\t\t\t/**\n\t\t\t * Element with no parent can not be split.\n\t\t\t *\n\t\t\t * @error writer-split-element-no-parent\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-split-element-no-parent', this );\n\t\t}\n\n\t\t// When limit element is not defined lets set splitElement parent as limit.\n\t\tif ( !limitElement ) {\n\t\t\tlimitElement = splitElement.parent;\n\t\t}\n\n\t\tif ( !position.parent.getAncestors( { includeSelf: true } ).includes( limitElement! ) ) {\n\t\t\t/**\n\t\t\t * Limit element is not a position ancestor.\n\t\t\t *\n\t\t\t * @error writer-split-invalid-limit-element\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-split-invalid-limit-element', this );\n\t\t}\n\n\t\t// We need to cache elements that will be created as a result of the first split because\n\t\t// we need to create a range from the end of the first split element to the beginning of the\n\t\t// first copy element. This should be handled by LiveRange but it doesn't work on detached nodes.\n\t\tlet firstSplitElement: Element | DocumentFragment | undefined;\n\t\tlet firstCopyElement: Node | null | undefined;\n\n\t\tdo {\n\t\t\tconst version = splitElement.root.document ? splitElement.root.document.version : null;\n\t\t\tconst howMany = splitElement.maxOffset - position.offset;\n\n\t\t\tconst insertionPosition = SplitOperation.getInsertionPosition( position );\n\t\t\tconst split = new SplitOperation( position, howMany, insertionPosition, null, version );\n\n\t\t\tthis.batch.addOperation( split );\n\t\t\tthis.model.applyOperation( split );\n\n\t\t\t// Cache result of the first split.\n\t\t\tif ( !firstSplitElement && !firstCopyElement ) {\n\t\t\t\tfirstSplitElement = splitElement;\n\t\t\t\tfirstCopyElement = position.parent.nextSibling;\n\t\t\t}\n\n\t\t\tposition = this.createPositionAfter( position.parent as any );\n\t\t\tsplitElement = position.parent;\n\t\t} while ( splitElement !== limitElement );\n\n\t\treturn {\n\t\t\tposition,\n\t\t\trange: new Range( Position._createAt( firstSplitElement!, 'end' ), Position._createAt( firstCopyElement!, 0 ) )\n\t\t};\n\t}\n\n\t/**\n\t * Wraps the given range with the given element or with a new element (if a string was passed).\n\t *\n\t * **Note:** range to wrap should be a \"flat range\" (see {@link module:engine/model/range~Range#isFlat `Range#isFlat`}).\n\t * If not, an error will be thrown.\n\t *\n\t * @param range Range to wrap.\n\t * @param elementOrString Element or name of element to wrap the range with.\n\t */\n\tpublic wrap( range: Range, elementOrString: Element | string ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !range.isFlat ) {\n\t\t\t/**\n\t\t\t * Range to wrap is not flat.\n\t\t\t *\n\t\t\t * @error writer-wrap-range-not-flat\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-wrap-range-not-flat', this );\n\t\t}\n\n\t\tconst element = elementOrString instanceof Element ? elementOrString : new Element( elementOrString );\n\n\t\tif ( element.childCount > 0 ) {\n\t\t\t/**\n\t\t\t * Element to wrap with is not empty.\n\t\t\t *\n\t\t\t * @error writer-wrap-element-not-empty\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-wrap-element-not-empty', this );\n\t\t}\n\n\t\tif ( element.parent !== null ) {\n\t\t\t/**\n\t\t\t * Element to wrap with is already attached to a tree model.\n\t\t\t *\n\t\t\t * @error writer-wrap-element-attached\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-wrap-element-attached', this );\n\t\t}\n\n\t\tthis.insert( element, range.start );\n\n\t\t// Shift the range-to-wrap because we just inserted an element before that range.\n\t\tconst shiftedRange = new Range( range.start.getShiftedBy( 1 ), range.end.getShiftedBy( 1 ) );\n\n\t\tthis.move( shiftedRange, Position._createAt( element, 0 ) );\n\t}\n\n\t/**\n\t * Unwraps children of the given element – all its children are moved before it and then the element is removed.\n\t * Throws error if you try to unwrap an element which does not have a parent.\n\t *\n\t * @param element Element to unwrap.\n\t */\n\tpublic unwrap( element: Element ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( element.parent === null ) {\n\t\t\t/**\n\t\t\t * Trying to unwrap an element which has no parent.\n\t\t\t *\n\t\t\t * @error writer-unwrap-element-no-parent\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-unwrap-element-no-parent', this );\n\t\t}\n\n\t\tthis.move( Range._createIn( element ), this.createPositionAfter( element ) );\n\t\tthis.remove( element );\n\t}\n\n\t/**\n\t * Adds a {@link module:engine/model/markercollection~Marker marker}. Marker is a named range, which tracks\n\t * changes in the document and updates its range automatically, when model tree changes.\n\t *\n\t * As the first parameter you can set marker name.\n\t *\n\t * The required `options.usingOperation` parameter lets you decide if the marker should be managed by operations or not. See\n\t * {@link module:engine/model/markercollection~Marker marker class description} to learn about the difference between\n\t * markers managed by operations and not-managed by operations.\n\t *\n\t * The `options.affectsData` parameter, which defaults to `false`, allows you to define if a marker affects the data. It should be\n\t * `true` when the marker change changes the data returned by the\n\t * {@link module:core/editor/utils/dataapimixin~DataApi#getData `editor.getData()`} method.\n\t * When set to `true` it fires the {@link module:engine/model/document~Document#event:change:data `change:data`} event.\n\t * When set to `false` it fires the {@link module:engine/model/document~Document#event:change `change`} event.\n\t *\n\t * Create marker directly base on marker's name:\n\t *\n\t * ```ts\n\t * addMarker( markerName, { range, usingOperation: false } );\n\t * ```\n\t *\n\t * Create marker using operation:\n\t *\n\t * ```ts\n\t * addMarker( markerName, { range, usingOperation: true } );\n\t * ```\n\t *\n\t * Create marker that affects the editor data:\n\t *\n\t * ```ts\n\t * addMarker( markerName, { range, usingOperation: false, affectsData: true } );\n\t * ```\n\t *\n\t * Note: For efficiency reasons, it's best to create and keep as little markers as possible.\n\t *\n\t * @see module:engine/model/markercollection~Marker\n\t * @param name Name of a marker to create - must be unique.\n\t * @param options.usingOperation Flag indicating that the marker should be added by MarkerOperation.\n\t * See {@link module:engine/model/markercollection~Marker#managedUsingOperations}.\n\t * @param options.range Marker range.\n\t * @param options.affectsData Flag indicating that the marker changes the editor data.\n\t * @returns Marker that was set.\n\t */\n\tpublic addMarker(\n\t\tname: string,\n\t\toptions: {\n\t\t\tusingOperation: boolean;\n\t\t\taffectsData?: boolean;\n\t\t\trange: Range;\n\t\t}\n\t): Marker {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( !options || typeof options.usingOperation != 'boolean' ) {\n\t\t\t/**\n\t\t\t * The `options.usingOperation` parameter is required when adding a new marker.\n\t\t\t *\n\t\t\t * @error writer-addmarker-no-usingoperation\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-addmarker-no-usingoperation', this );\n\t\t}\n\n\t\tconst usingOperation = options.usingOperation;\n\t\tconst range = options.range;\n\t\tconst affectsData = options.affectsData === undefined ? false : options.affectsData;\n\n\t\tif ( this.model.markers.has( name ) ) {\n\t\t\t/**\n\t\t\t * Marker with provided name already exists.\n\t\t\t *\n\t\t\t * @error writer-addmarker-marker-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-addmarker-marker-exists', this );\n\t\t}\n\n\t\tif ( !range ) {\n\t\t\t/**\n\t\t\t * Range parameter is required when adding a new marker.\n\t\t\t *\n\t\t\t * @error writer-addmarker-no-range\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-addmarker-no-range', this );\n\t\t}\n\n\t\tif ( !usingOperation ) {\n\t\t\treturn this.model.markers._set( name, range, usingOperation, affectsData );\n\t\t}\n\n\t\tapplyMarkerOperation( this, name, null, range, affectsData );\n\n\t\treturn this.model.markers.get( name )!;\n\t}\n\n\t/**\n\t * Adds, updates or refreshes a {@link module:engine/model/markercollection~Marker marker}. Marker is a named range, which tracks\n\t * changes in the document and updates its range automatically, when model tree changes. Still, it is possible to change the\n\t * marker's range directly using this method.\n\t *\n\t * As the first parameter you can set marker name or instance. If none of them is provided, new marker, with a unique\n\t * name is created and returned.\n\t *\n\t * **Note**: If you want to change the {@link module:engine/view/element~Element view element} of the marker while its data in the model\n\t * remains the same, use the dedicated {@link module:engine/controller/editingcontroller~EditingController#reconvertMarker} method.\n\t *\n\t * The `options.usingOperation` parameter lets you change if the marker should be managed by operations or not. See\n\t * {@link module:engine/model/markercollection~Marker marker class description} to learn about the difference between\n\t * markers managed by operations and not-managed by operations. It is possible to change this option for an existing marker.\n\t *\n\t * The `options.affectsData` parameter, which defaults to `false`, allows you to define if a marker affects the data. It should be\n\t * `true` when the marker change changes the data returned by\n\t * the {@link module:core/editor/utils/dataapimixin~DataApi#getData `editor.getData()`} method.\n\t * When set to `true` it fires the {@link module:engine/model/document~Document#event:change:data `change:data`} event.\n\t * When set to `false` it fires the {@link module:engine/model/document~Document#event:change `change`} event.\n\t *\n\t * Update marker directly base on marker's name:\n\t *\n\t * ```ts\n\t * updateMarker( markerName, { range } );\n\t * ```\n\t *\n\t * Update marker using operation:\n\t *\n\t * ```ts\n\t * updateMarker( marker, { range, usingOperation: true } );\n\t * updateMarker( markerName, { range, usingOperation: true } );\n\t * ```\n\t *\n\t * Change marker's option (start using operations to manage it):\n\t *\n\t * ```ts\n\t * updateMarker( marker, { usingOperation: true } );\n\t * ```\n\t *\n\t * Change marker's option (inform the engine, that the marker does not affect the data anymore):\n\t *\n\t * ```ts\n\t * updateMarker( markerName, { affectsData: false } );\n\t * ```\n\t *\n\t * @see module:engine/model/markercollection~Marker\n\t * @param markerOrName Name of a marker to update, or a marker instance.\n\t * @param options If options object is not defined then marker will be refreshed by triggering\n\t * downcast conversion for this marker with the same data.\n\t * @param options.range Marker range to update.\n\t * @param options.usingOperation Flag indicated whether the marker should be added by MarkerOperation.\n\t * See {@link module:engine/model/markercollection~Marker#managedUsingOperations}.\n\t * @param options.affectsData Flag indicating that the marker changes the editor data.\n\t */\n\tpublic updateMarker(\n\t\tmarkerOrName: string | Marker,\n\t\toptions?: {\n\t\t\trange?: Range;\n\t\t\tusingOperation?: boolean;\n\t\t\taffectsData?: boolean;\n\t\t}\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst markerName = typeof markerOrName == 'string' ? markerOrName : markerOrName.name;\n\t\tconst currentMarker = this.model.markers.get( markerName );\n\n\t\tif ( !currentMarker ) {\n\t\t\t/**\n\t\t\t * Marker with provided name does not exist and will not be updated.\n\t\t\t *\n\t\t\t * @error writer-updatemarker-marker-not-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-updatemarker-marker-not-exists', this );\n\t\t}\n\n\t\tif ( !options ) {\n\t\t\t/**\n\t\t\t * The usage of `writer.updateMarker()` only to reconvert (refresh) a\n\t\t\t * {@link module:engine/model/markercollection~Marker model marker} was deprecated and may not work in the future.\n\t\t\t * Please update your code to use\n\t\t\t * {@link module:engine/controller/editingcontroller~EditingController#reconvertMarker `editor.editing.reconvertMarker()`}\n\t\t\t * instead.\n\t\t\t *\n\t\t\t * @error writer-updatemarker-reconvert-using-editingcontroller\n\t\t\t * @param markerName The name of the updated marker.\n\t\t\t */\n\t\t\tlogWarning( 'writer-updatemarker-reconvert-using-editingcontroller', { markerName } );\n\n\t\t\tthis.model.markers._refresh( currentMarker );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst hasUsingOperationDefined = typeof options.usingOperation == 'boolean';\n\t\tconst affectsDataDefined = typeof options.affectsData == 'boolean';\n\n\t\t// Use previously defined marker's affectsData if the property is not provided.\n\t\tconst affectsData = affectsDataDefined ? options.affectsData : currentMarker.affectsData;\n\n\t\tif ( !hasUsingOperationDefined && !options.range && !affectsDataDefined ) {\n\t\t\t/**\n\t\t\t * One of the options is required - provide range, usingOperations or affectsData.\n\t\t\t *\n\t\t\t * @error writer-updatemarker-wrong-options\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-updatemarker-wrong-options', this );\n\t\t}\n\n\t\tconst currentRange = currentMarker.getRange();\n\t\tconst updatedRange = options.range ? options.range : currentRange;\n\n\t\tif ( hasUsingOperationDefined && options.usingOperation !== currentMarker.managedUsingOperations ) {\n\t\t\t// The marker type is changed so it's necessary to create proper operations.\n\t\t\tif ( options.usingOperation ) {\n\t\t\t\t// If marker changes to a managed one treat this as synchronizing existing marker.\n\t\t\t\t// Create `MarkerOperation` with `oldRange` set to `null`, so reverse operation will remove the marker.\n\t\t\t\tapplyMarkerOperation( this, markerName, null, updatedRange, affectsData );\n\t\t\t} else {\n\t\t\t\t// If marker changes to a marker that do not use operations then we need to create additional operation\n\t\t\t\t// that removes that marker first.\n\t\t\t\tapplyMarkerOperation( this, markerName, currentRange, null, affectsData );\n\n\t\t\t\t// Although not managed the marker itself should stay in model and its range should be preserver or changed to passed range.\n\t\t\t\tthis.model.markers._set( markerName, updatedRange, undefined, affectsData );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Marker's type doesn't change so update it accordingly.\n\t\tif ( currentMarker.managedUsingOperations ) {\n\t\t\tapplyMarkerOperation( this, markerName, currentRange, updatedRange, affectsData );\n\t\t} else {\n\t\t\tthis.model.markers._set( markerName, updatedRange, undefined, affectsData );\n\t\t}\n\t}\n\n\t/**\n\t * Removes given {@link module:engine/model/markercollection~Marker marker} or marker with given name.\n\t * The marker is removed accordingly to how it has been created, so if the marker was created using operation,\n\t * it will be destroyed using operation.\n\t *\n\t * @param markerOrName Marker or marker name to remove.\n\t */\n\tpublic removeMarker( markerOrName: string | Marker ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst name = typeof markerOrName == 'string' ? markerOrName : markerOrName.name;\n\n\t\tif ( !this.model.markers.has( name ) ) {\n\t\t\t/**\n\t\t\t * Trying to remove marker which does not exist.\n\t\t\t *\n\t\t\t * @error writer-removemarker-no-marker\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-removemarker-no-marker', this );\n\t\t}\n\n\t\tconst marker = this.model.markers.get( name )!;\n\n\t\tif ( !marker.managedUsingOperations ) {\n\t\t\tthis.model.markers._remove( name );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst oldRange = marker.getRange();\n\n\t\tapplyMarkerOperation( this, name, oldRange, null, marker.affectsData );\n\t}\n\n\t/**\n\t * Adds a new root to the document (or re-attaches a {@link #detachRoot detached root}).\n\t *\n\t * Throws an error, if trying to add a root that is already added and attached.\n\t *\n\t * @param rootName Name of the added root.\n\t * @param elementName The element name. Defaults to `'$root'` which also has some basic schema defined\n\t * (e.g. `$block` elements are allowed inside the `$root`). Make sure to define a proper schema if you use a different name.\n\t * @returns The added root element.\n\t */\n\tpublic addRoot( rootName: string, elementName = '$root' ): RootElement {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst root = this.model.document.getRoot( rootName );\n\n\t\tif ( root && root.isAttached() ) {\n\t\t\t/**\n\t\t\t * Root with provided name already exists and is attached.\n\t\t\t *\n\t\t\t * @error writer-addroot-root-exists\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-addroot-root-exists', this );\n\t\t}\n\n\t\tconst document = this.model.document;\n\t\tconst operation = new RootOperation( rootName, elementName, true, document, document.version );\n\n\t\tthis.batch.addOperation( operation );\n\t\tthis.model.applyOperation( operation );\n\n\t\treturn this.model.document.getRoot( rootName )!;\n\t}\n\n\t/**\n\t * Detaches the root from the document.\n\t *\n\t * All content and markers are removed from the root upon detaching. New content and new markers cannot be added to the root, as long\n\t * as it is detached.\n\t *\n\t * A root cannot be fully removed from the document, it can be only detached. A root is permanently removed only after you\n\t * re-initialize the editor and do not specify the root in the initial data.\n\t *\n\t * A detached root can be re-attached using {@link #addRoot}.\n\t *\n\t * Throws an error if the root does not exist or the root is already detached.\n\t *\n\t * @param rootOrName Name of the detached root.\n\t */\n\tpublic detachRoot( rootOrName: string | RootElement ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tconst root = typeof rootOrName == 'string' ? this.model.document.getRoot( rootOrName ) : rootOrName;\n\n\t\tif ( !root || !root.isAttached() ) {\n\t\t\t/**\n\t\t\t * Root with provided name does not exist or is already detached.\n\t\t\t *\n\t\t\t * @error writer-detachroot-no-root\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'writer-detachroot-no-root', this );\n\t\t}\n\n\t\t// First, remove all markers from the root. It is better to do it before removing stuff for undo purposes.\n\t\t// However, looking through all the markers may not be the best performance wise. But there's no better solution for now.\n\t\tfor ( const marker of this.model.markers ) {\n\t\t\tif ( marker.getRange().root === root ) {\n\t\t\t\tthis.removeMarker( marker );\n\t\t\t}\n\t\t}\n\n\t\t// Remove all attributes from the root.\n\t\tfor ( const key of root.getAttributeKeys() ) {\n\t\t\tthis.removeAttribute( key, root );\n\t\t}\n\n\t\t// Remove all contents of the root.\n\t\tthis.remove( this.createRangeIn( root ) );\n\n\t\t// Finally, detach the root.\n\t\tconst document = this.model.document;\n\t\tconst operation = new RootOperation( root.rootName, root.name, false, document, document.version );\n\n\t\tthis.batch.addOperation( operation );\n\t\tthis.model.applyOperation( operation );\n\t}\n\n\t/**\n\t * Sets the document's selection (ranges and direction) to the specified location based on the given\n\t * {@link module:engine/model/selection~Selectable selectable} or creates an empty selection if no arguments were passed.\n\t *\n\t * ```ts\n\t * // Sets collapsed selection at the position of the given node and an offset.\n\t * writer.setSelection( paragraph, offset );\n\t * ```\n\t *\n\t * Creates a range inside an {@link module:engine/model/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * ```ts\n\t * writer.setSelection( paragraph, 'in' );\n\t * ```\n\t *\n\t * Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends just after the item.\n\t *\n\t * ```ts\n\t * writer.setSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * `Writer#setSelection()` allow passing additional options (`backward`) as the last argument.\n\t *\n\t * ```ts\n\t * // Sets selection as backward.\n\t * writer.setSelection( element, 'in', { backward: true } );\n\t * ```\n\t *\n\t * Throws `writer-incorrect-use` error when the writer is used outside the `change()` block.\n\t *\n\t * See also: {@link #setSelection:SELECTABLE `setSelection( selectable, options )`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic setSelection( selectable: Node, placeOrOffset: PlaceOrOffset, options?: { backward?: boolean } ): void;\n\n\t/**\n\t * Sets the document's selection (ranges and direction) to the specified location based on the given\n\t * {@link module:engine/model/selection~Selectable selectable} or creates an empty selection if no arguments were passed.\n\t *\n\t * ```ts\n\t * // Sets selection to the given range.\n\t * const range = writer.createRange( start, end );\n\t * writer.setSelection( range );\n\t *\n\t * // Sets selection to given ranges.\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * writer.setSelection( ranges );\n\t *\n\t * // Sets selection to other selection.\n\t * const otherSelection = writer.createSelection();\n\t * writer.setSelection( otherSelection );\n\t *\n\t * // Sets selection to the given document selection.\n\t * const documentSelection = model.document.selection;\n\t * writer.setSelection( documentSelection );\n\t *\n\t * // Sets collapsed selection at the given position.\n\t * const position = writer.createPosition( root, path );\n\t * writer.setSelection( position );\n\t *\n\t * // Removes all selection's ranges.\n\t * writer.setSelection( null );\n\t * ```\n\t *\n\t * `Writer#setSelection()` allow passing additional options (`backward`) as the last argument.\n\t *\n\t * ```ts\n\t * // Sets selection as backward.\n\t * writer.setSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * Throws `writer-incorrect-use` error when the writer is used outside the `change()` block.\n\t *\n\t * See also: {@link #setSelection:NODE_OFFSET `setSelection( node, placeOrOffset, options )`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic setSelection( selectable: Exclude<Selectable, Node>, options?: { backward?: boolean } ): void;\n\n\tpublic setSelection( ...args: Parameters<Selection[ 'setTo' ]> ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tthis.model.document.selection._setTo( ...args );\n\t}\n\n\t/**\n\t * Moves {@link module:engine/model/documentselection~DocumentSelection#focus} to the specified location.\n\t *\n\t * The location can be specified in the same form as\n\t * {@link #createPositionAt `writer.createPositionAt()`} parameters.\n\t *\n\t * @param itemOrPosition\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic setSelectionFocus(\n\t\titemOrPosition: Item | Position,\n\t\toffset?: PositionOffset\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tthis.model.document.selection._setFocus( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Sets attribute on the selection. If attribute with the same key already is set, it's value is overwritten.\n\t *\n\t * ```ts\n\t * writer.setSelectionAttribute( 'italic', true );\n\t * ```\n\t *\n\t * @label KEY_VALUE\n\t * @param key Key of the attribute to set.\n\t * @param value Attribute value.\n\t */\n\tpublic setSelectionAttribute( key: string, value: unknown ): void;\n\n\t/**\n\t * Sets attributes on the selection. If any attribute with the same key already is set, it's value is overwritten.\n\t *\n\t * Using key-value object:\n\t *\n\t * ```ts\n\t * writer.setSelectionAttribute( { italic: true, bold: false } );\n\t * ```\n\t *\n\t * Using iterable object:\n\t *\n\t * ```ts\n\t * writer.setSelectionAttribute( new Map( [ [ 'italic', true ] ] ) );\n\t * ```\n\t *\n\t * @label OBJECT\n\t * @param objectOrIterable Object / iterable of key => value attribute pairs.\n\t */\n\tpublic setSelectionAttribute( objectOrIterable: NodeAttributes ): void;\n\n\tpublic setSelectionAttribute(\n\t\tkeyOrObjectOrIterable: string | NodeAttributes,\n\t\tvalue?: unknown\n\t): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( typeof keyOrObjectOrIterable === 'string' ) {\n\t\t\tthis._setSelectionAttribute( keyOrObjectOrIterable, value );\n\t\t} else {\n\t\t\tfor ( const [ key, value ] of toMap( keyOrObjectOrIterable ) ) {\n\t\t\t\tthis._setSelectionAttribute( key, value );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Removes attribute(s) with given key(s) from the selection.\n\t *\n\t * Remove one attribute:\n\t *\n\t * ```ts\n\t * writer.removeSelectionAttribute( 'italic' );\n\t * ```\n\t *\n\t * Remove multiple attributes:\n\t *\n\t * ```ts\n\t * writer.removeSelectionAttribute( [ 'italic', 'bold' ] );\n\t * ```\n\t *\n\t * @param keyOrIterableOfKeys Key of the attribute to remove or an iterable of attribute keys to remove.\n\t */\n\tpublic removeSelectionAttribute( keyOrIterableOfKeys: string | Iterable<string> ): void {\n\t\tthis._assertWriterUsedCorrectly();\n\n\t\tif ( typeof keyOrIterableOfKeys === 'string' ) {\n\t\t\tthis._removeSelectionAttribute( keyOrIterableOfKeys );\n\t\t} else {\n\t\t\tfor ( const key of keyOrIterableOfKeys ) {\n\t\t\t\tthis._removeSelectionAttribute( key );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Temporarily changes the {@link module:engine/model/documentselection~DocumentSelection#isGravityOverridden gravity}\n\t * of the selection from left to right.\n\t *\n\t * The gravity defines from which direction the selection inherits its attributes. If it's the default left gravity,\n\t * then the selection (after being moved by the user) inherits attributes from its left-hand side.\n\t * This method allows to temporarily override this behavior by forcing the gravity to the right.\n\t *\n\t * For the following model fragment:\n\t *\n\t * ```xml\n\t * <$text bold=\"true\" linkHref=\"url\">bar[]</$text><$text bold=\"true\">biz</$text>\n\t * ```\n\t *\n\t * * Default gravity: selection will have the `bold` and `linkHref` attributes.\n\t * * Overridden gravity: selection will have `bold` attribute.\n\t *\n\t * **Note**: It returns an unique identifier which is required to restore the gravity. It guarantees the symmetry\n\t * of the process.\n\t *\n\t * @returns The unique id which allows restoring the gravity.\n\t */\n\tpublic overrideSelectionGravity(): string {\n\t\treturn this.model.document.selection._overrideGravity();\n\t}\n\n\t/**\n\t * Restores {@link ~Writer#overrideSelectionGravity} gravity to default.\n\t *\n\t * Restoring the gravity is only possible using the unique identifier returned by\n\t * {@link ~Writer#overrideSelectionGravity}. Note that the gravity remains overridden as long as won't be restored\n\t * the same number of times it was overridden.\n\t *\n\t * @param uid The unique id returned by {@link ~Writer#overrideSelectionGravity}.\n\t */\n\tpublic restoreSelectionGravity( uid: string ): void {\n\t\tthis.model.document.selection._restoreGravity( uid );\n\t}\n\n\t/**\n\t * @param key Key of the attribute to remove.\n\t * @param value Attribute value.\n\t */\n\tprivate _setSelectionAttribute( key: string, value: unknown ): void {\n\t\tconst selection = this.model.document.selection;\n\n\t\t// Store attribute in parent element if the selection is collapsed in an empty node.\n\t\tif ( selection.isCollapsed && selection.anchor!.parent.isEmpty ) {\n\t\t\tconst storeKey = DocumentSelection._getStoreAttributeKey( key );\n\n\t\t\tthis.setAttribute( storeKey, value, selection.anchor!.parent as any );\n\t\t}\n\n\t\tselection._setAttribute( key, value );\n\t}\n\n\t/**\n\t * @param key Key of the attribute to remove.\n\t */\n\tprivate _removeSelectionAttribute( key: string ): void {\n\t\tconst selection = this.model.document.selection;\n\n\t\t// Remove stored attribute from parent element if the selection is collapsed in an empty node.\n\t\tif ( selection.isCollapsed && selection.anchor!.parent.isEmpty ) {\n\t\t\tconst storeKey = DocumentSelection._getStoreAttributeKey( key );\n\n\t\t\tthis.removeAttribute( storeKey, selection.anchor!.parent as any );\n\t\t}\n\n\t\tselection._removeAttribute( key );\n\t}\n\n\t/**\n\t * Throws `writer-detached-writer-tries-to-modify-model` error when the writer is used outside of the `change()` block.\n\t */\n\tprivate _assertWriterUsedCorrectly(): void {\n\t\t/**\n\t\t * Trying to use a writer outside a {@link module:engine/model/model~Model#change `change()`} or\n\t\t * {@link module:engine/model/model~Model#enqueueChange `enqueueChange()`} blocks.\n\t\t *\n\t\t * The writer can only be used inside these blocks which ensures that the model\n\t\t * can only be changed during such \"sessions\".\n\t\t *\n\t\t * @error writer-incorrect-use\n\t\t */\n\t\tif ( ( this.model as any )._currentWriter !== this ) {\n\t\t\tthrow new CKEditorError( 'writer-incorrect-use', this );\n\t\t}\n\t}\n\n\t/**\n\t * For given action `type` and `positionOrRange` where the action happens, this function finds all affected markers\n\t * and applies a marker operation with the new marker range equal to the current range. Thanks to this, the marker range\n\t * can be later correctly processed during undo.\n\t *\n\t * @param type Writer action type.\n\t * @param positionOrRange Position or range where the writer action happens.\n\t */\n\tprivate _addOperationForAffectedMarkers(\n\t\ttype: 'move' | 'merge',\n\t\tpositionOrRange: Position | Range\n\t): void {\n\t\tfor ( const marker of this.model.markers ) {\n\t\t\tif ( !marker.managedUsingOperations ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tconst markerRange = marker.getRange();\n\t\t\tlet isAffected = false;\n\n\t\t\tif ( type === 'move' ) {\n\t\t\t\tconst range = positionOrRange as Range;\n\t\t\t\tisAffected =\n\t\t\t\t\trange.containsPosition( markerRange.start ) ||\n\t\t\t\t\trange.start.isEqual( markerRange.start ) ||\n\t\t\t\t\trange.containsPosition( markerRange.end ) ||\n\t\t\t\t\trange.end.isEqual( markerRange.end );\n\t\t\t} else {\n\t\t\t\t// if type === 'merge'.\n\t\t\t\tconst position = positionOrRange as Position;\n\t\t\t\tconst elementBefore = position.nodeBefore;\n\t\t\t\tconst elementAfter = position.nodeAfter;\n\n\t\t\t\t//               Start:  <p>Foo[</p><p>Bar]</p>\n\t\t\t\t//         After merge:  <p>Foo[Bar]</p>\n\t\t\t\t// After undoing split:  <p>Foo</p><p>[Bar]</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedInLeftElement = markerRange.start.parent == elementBefore && markerRange.start.isAtEnd;\n\n\t\t\t\t//               Start:  <p>[Foo</p><p>]Bar</p>\n\t\t\t\t//         After merge:  <p>[Foo]Bar</p>\n\t\t\t\t// After undoing split:  <p>[Foo]</p><p>Bar</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedInRightElement = markerRange.end.parent == elementAfter && markerRange.end.offset == 0;\n\n\t\t\t\t//               Start:  <p>[Foo</p>]<p>Bar</p>\n\t\t\t\t//         After merge:  <p>[Foo]Bar</p>\n\t\t\t\t// After undoing split:  <p>[Foo]</p><p>Bar</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedAfterLeftElement = markerRange.end.nodeAfter == elementAfter;\n\n\t\t\t\t//               Start:  <p>Foo</p>[<p>Bar]</p>\n\t\t\t\t//         After merge:  <p>Foo[Bar]</p>\n\t\t\t\t// After undoing split:  <p>Foo</p><p>[Bar]</p>     <-- incorrect, needs remembering for undo.\n\t\t\t\t//\n\t\t\t\tconst affectedBeforeRightElement = markerRange.start.nodeAfter == elementAfter;\n\n\t\t\t\tisAffected = affectedInLeftElement || affectedInRightElement || affectedAfterLeftElement || affectedBeforeRightElement;\n\t\t\t}\n\n\t\t\tif ( isAffected ) {\n\t\t\t\tthis.updateMarker( marker.name, { range: markerRange } );\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Sets given attribute to each node in given range. When attribute value is null then attribute will be removed.\n *\n * Because attribute operation needs to have the same attribute value on the whole range, this function splits\n * the range into smaller parts.\n *\n * Given `range` must be flat.\n */\nfunction setAttributeOnRange( writer: Writer, key: string, value: unknown, range: Range ) {\n\tconst model = writer.model;\n\tconst doc = model.document;\n\n\t// Position of the last split, the beginning of the new range.\n\tlet lastSplitPosition = range.start;\n\n\t// Currently position in the scanning range. Because we need value after the position, it is not a current\n\t// position of the iterator but the previous one (we need to iterate one more time to get the value after).\n\tlet position: Position | undefined;\n\n\t// Value before the currently position.\n\tlet valueBefore: unknown;\n\n\t// Value after the currently position.\n\tlet valueAfter;\n\n\tfor ( const val of range.getWalker( { shallow: true } ) ) {\n\t\tvalueAfter = val.item.getAttribute( key );\n\n\t\t// At the first run of the iterator the position in undefined. We also do not have a valueBefore, but\n\t\t// because valueAfter may be null, valueBefore may be equal valueAfter ( undefined == null ).\n\t\tif ( position && valueBefore != valueAfter ) {\n\t\t\t// if valueBefore == value there is nothing to change, so we add operation only if these values are different.\n\t\t\tif ( valueBefore != value ) {\n\t\t\t\taddOperation();\n\t\t\t}\n\n\t\t\tlastSplitPosition = position;\n\t\t}\n\n\t\tposition = val.nextPosition;\n\t\tvalueBefore = valueAfter;\n\t}\n\n\t// Because position in the loop is not the iterator position (see let position comment), the last position in\n\t// the while loop will be last but one position in the range. We need to check the last position manually.\n\tif ( position instanceof Position && position != lastSplitPosition && valueBefore != value ) {\n\t\taddOperation();\n\t}\n\n\tfunction addOperation() {\n\t\tconst range = new Range( lastSplitPosition, position );\n\t\tconst version = range.root.document ? doc.version : null;\n\t\tconst operation = new AttributeOperation( range, key, valueBefore, value, version );\n\n\t\twriter.batch.addOperation( operation );\n\t\tmodel.applyOperation( operation );\n\t}\n}\n\n/**\n * Sets given attribute to the given node. When attribute value is null then attribute will be removed.\n */\nfunction setAttributeOnItem( writer: Writer, key: string, value: unknown, item: Item ) {\n\tconst model = writer.model;\n\tconst doc = model.document;\n\tconst previousValue = item.getAttribute( key );\n\tlet range, operation;\n\n\tif ( previousValue != value ) {\n\t\tconst isRootChanged = item.root === item;\n\n\t\tif ( isRootChanged ) {\n\t\t\t// If we change attributes of root element, we have to use `RootAttributeOperation`.\n\t\t\tconst version = item.document ? doc.version : null;\n\n\t\t\toperation = new RootAttributeOperation( item as any, key, previousValue, value, version );\n\t\t} else {\n\t\t\trange = new Range( Position._createBefore( item ), writer.createPositionAfter( item ) );\n\n\t\t\tconst version = range.root.document ? doc.version : null;\n\n\t\t\toperation = new AttributeOperation( range, key, previousValue, value, version );\n\t\t}\n\n\t\twriter.batch.addOperation( operation );\n\t\tmodel.applyOperation( operation );\n\t}\n}\n\n/**\n * Creates and applies marker operation to {@link module:engine/model/operation/operation~Operation operation}.\n */\nfunction applyMarkerOperation(\n\twriter: Writer,\n\tname: string,\n\toldRange: Range | null,\n\tnewRange: Range | null,\n\taffectsData: boolean | undefined\n) {\n\tconst model = writer.model;\n\tconst doc = model.document;\n\n\tconst operation = new MarkerOperation( name, oldRange, newRange, model.markers, !!affectsData, doc.version );\n\n\twriter.batch.addOperation( operation );\n\tmodel.applyOperation( operation );\n}\n\n/**\n * Creates `MoveOperation` or `DetachOperation` that removes `howMany` nodes starting from `position`.\n * The operation will be applied on given model instance and added to given operation instance.\n *\n * @param position Position from which nodes are removed.\n * @param howMany Number of nodes to remove.\n * @param batch Batch to which the operation will be added.\n * @param model Model instance on which operation will be applied.\n */\nfunction applyRemoveOperation( position: Position, howMany: number, batch: Batch, model: Model ) {\n\tlet operation;\n\n\tif ( position.root.document ) {\n\t\tconst doc = model.document;\n\t\tconst graveyardPosition = new Position( doc.graveyard, [ 0 ] );\n\n\t\toperation = new MoveOperation( position, howMany, graveyardPosition, doc.version );\n\t} else {\n\t\toperation = new DetachOperation( position, howMany );\n\t}\n\n\tbatch.addOperation( operation );\n\tmodel.applyOperation( operation );\n}\n\n/**\n * Returns `true` if both root elements are the same element or both are documents root elements.\n *\n * Elements in the same tree can be moved (for instance you can move element form one documents root to another, or\n * within the same document fragment), but when element supposed to be moved from document fragment to the document, or\n * to another document it should be removed and inserted to avoid problems with OT. This is because features like undo or\n * collaboration may track changes on the document but ignore changes on detached fragments and should not get\n * unexpected `move` operation.\n */\nfunction isSameTree( rootA: Node | DocumentFragment, rootB: Node | DocumentFragment ): boolean {\n\t// If it is the same root this is the same tree.\n\tif ( rootA === rootB ) {\n\t\treturn true;\n\t}\n\n\t// If both roots are documents root it is operation within the document what we still treat as the same tree.\n\tif ( rootA instanceof RootElement && rootB instanceof RootElement ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/deletecontent\n */\n\nimport DocumentSelection from '../documentselection';\nimport LivePosition from '../liveposition';\nimport Range from '../range';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Element from '../element';\nimport type Model from '../model';\nimport type Position from '../position';\nimport type Schema from '../schema';\nimport type Selection from '../selection';\nimport type Writer from '../writer';\n\n/**\n * Deletes content of the selection and merge siblings. The resulting selection is always collapsed.\n *\n * **Note:** Use {@link module:engine/model/model~Model#deleteContent} instead of this function.\n * This function is only exposed to be reusable in algorithms\n * which change the {@link module:engine/model/model~Model#deleteContent}\n * method's behavior.\n *\n * @param model The model in context of which the insertion should be performed.\n * @param selection Selection of which the content should be deleted.\n * @param options.leaveUnmerged Whether to merge elements after removing the content of the selection.\n *\n * For example `<heading>x[x</heading><paragraph>y]y</paragraph>` will become:\n *\n * * `<heading>x^y</heading>` with the option disabled (`leaveUnmerged == false`)\n * * `<heading>x^</heading><paragraph>y</paragraph>` with enabled (`leaveUnmerged == true`).\n *\n * Note: {@link module:engine/model/schema~Schema#isObject object} and {@link module:engine/model/schema~Schema#isLimit limit}\n * elements will not be merged.\n *\n * @param options.doNotResetEntireContent Whether to skip replacing the entire content with a\n * paragraph when the entire content was selected.\n *\n * For example `<heading>[x</heading><paragraph>y]</paragraph>` will become:\n *\n * * `<paragraph>^</paragraph>` with the option disabled (`doNotResetEntireContent == false`)\n * * `<heading>^</heading>` with enabled (`doNotResetEntireContent == true`).\n *\n * @param options.doNotAutoparagraph Whether to create a paragraph if after content deletion selection is moved\n * to a place where text cannot be inserted.\n *\n * For example `<paragraph>x</paragraph>[<imageBlock src=\"foo.jpg\"></imageBlock>]` will become:\n *\n * * `<paragraph>x</paragraph><paragraph>[]</paragraph>` with the option disabled (`doNotAutoparagraph == false`)\n * * `<paragraph>x</paragraph>[]` with the option enabled (`doNotAutoparagraph == true`).\n *\n * If you use this option you need to make sure to handle invalid selections yourself or leave\n * them to the selection post-fixer (may not always work).\n *\n * **Note:** If there is no valid position for the selection, the paragraph will always be created:\n *\n * `[<imageBlock src=\"foo.jpg\"></imageBlock>]` -> `<paragraph>[]</paragraph>`.\n */\nexport default function deleteContent(\n\tmodel: Model,\n\tselection: Selection | DocumentSelection,\n\toptions: {\n\t\tleaveUnmerged?: boolean;\n\t\tdoNotResetEntireContent?: boolean;\n\t\tdoNotAutoparagraph?: boolean;\n\t} = {}\n): void {\n\tif ( selection.isCollapsed ) {\n\t\treturn;\n\t}\n\n\tconst selRange = selection.getFirstRange()!;\n\n\t// If the selection is already removed, don't do anything.\n\tif ( selRange.root.rootName == '$graveyard' ) {\n\t\treturn;\n\t}\n\n\tconst schema = model.schema;\n\n\tmodel.change( writer => {\n\t\t// 1. Replace the entire content with paragraph.\n\t\t// See: https://github.com/ckeditor/ckeditor5-engine/issues/1012#issuecomment-315017594.\n\t\tif ( !options.doNotResetEntireContent && shouldEntireContentBeReplacedWithParagraph( schema, selection ) ) {\n\t\t\treplaceEntireContentWithParagraph( writer, selection );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Collect attributes to copy in case of autoparagraphing.\n\t\tconst attributesForAutoparagraph = {};\n\n\t\tif ( !options.doNotAutoparagraph ) {\n\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\tif ( selectedElement ) {\n\t\t\t\tObject.assign( attributesForAutoparagraph, schema.getAttributesWithProperty( selectedElement, 'copyOnReplace', true ) );\n\t\t\t}\n\t\t}\n\n\t\t// Get the live positions for the range adjusted to span only blocks selected from the user perspective.\n\t\tconst [ startPosition, endPosition ] = getLivePositionsForSelectedBlocks( selRange );\n\n\t\t// 2. Remove the content if there is any.\n\t\tif ( !startPosition.isTouching( endPosition ) ) {\n\t\t\twriter.remove( writer.createRange( startPosition, endPosition ) );\n\t\t}\n\n\t\t// 3. Merge elements in the right branch to the elements in the left branch.\n\t\t// The only reasonable (in terms of data and selection correctness) case in which we need to do that is:\n\t\t//\n\t\t// <heading type=1>Fo[</heading><paragraph>]ar</paragraph> => <heading type=1>Fo^ar</heading>\n\t\t//\n\t\t// However, the algorithm supports also merging deeper structures (up to the depth of the shallower branch),\n\t\t// as it's hard to imagine what should actually be the default behavior. Usually, specific features will\n\t\t// want to override that behavior anyway.\n\t\tif ( !options.leaveUnmerged ) {\n\t\t\tmergeBranches( writer, startPosition, endPosition );\n\n\t\t\t// TMP this will be replaced with a postfixer.\n\t\t\t// We need to check and strip disallowed attributes in all nested nodes because after merge\n\t\t\t// some attributes could end up in a path where are disallowed.\n\t\t\t//\n\t\t\t// e.g. bold is disallowed for <H1>\n\t\t\t// <h1>Fo{o</h1><p>b}a<b>r</b><p> -> <h1>Fo{}a<b>r</b><h1> -> <h1>Fo{}ar<h1>.\n\t\t\tschema.removeDisallowedAttributes( startPosition.parent.getChildren(), writer );\n\t\t}\n\n\t\tcollapseSelectionAt( writer, selection, startPosition );\n\n\t\t// 4. Add a paragraph to set selection in it.\n\t\t// Check if a text is allowed in the new container. If not, try to create a new paragraph (if it's allowed here).\n\t\t// If autoparagraphing is off, we assume that you know what you do so we leave the selection wherever it was.\n\t\tif ( !options.doNotAutoparagraph && shouldAutoparagraph( schema, startPosition ) ) {\n\t\t\tinsertParagraph( writer, startPosition, selection, attributesForAutoparagraph );\n\t\t}\n\n\t\tstartPosition.detach();\n\t\tendPosition.detach();\n\t} );\n}\n\n/**\n * Returns the live positions for the range adjusted to span only blocks selected from the user perspective. Example:\n *\n * ```\n * <heading1>[foo</heading1>\n * <paragraph>bar</paragraph>\n * <heading1>]abc</heading1>  <-- this block is not considered as selected\n * ```\n *\n * This is the same behavior as in Selection#getSelectedBlocks() \"special case\".\n */\nfunction getLivePositionsForSelectedBlocks( range: Range ): [ startPosition: LivePosition, endPosition: LivePosition ] {\n\tconst model = range.root.document!.model;\n\n\tconst startPosition = range.start;\n\tlet endPosition = range.end;\n\n\t// If the end of selection is at the start position of last block in the selection, then\n\t// shrink it to not include that trailing block. Note that this should happen only for not empty selection.\n\tif ( model.hasContent( range, { ignoreMarkers: true } ) ) {\n\t\tconst endBlock = getParentBlock( endPosition );\n\n\t\tif ( endBlock && endPosition.isTouching( model.createPositionAt( endBlock, 0 ) ) ) {\n\t\t\t// Create forward selection as a probe to find a valid position after excluding last block from the range.\n\t\t\tconst selection = model.createSelection( range );\n\n\t\t\t// Modify the forward selection in backward direction to shrink it and remove first position of following block from it.\n\t\t\t// This is how modifySelection works and here we are making use of it.\n\t\t\tmodel.modifySelection( selection, { direction: 'backward' } );\n\n\t\t\tconst newEndPosition = selection.getLastPosition()!;\n\n\t\t\t// For such a model and selection:\n\t\t\t//     <paragraph>A[</paragraph><imageBlock></imageBlock><paragraph>]B</paragraph>\n\t\t\t//\n\t\t\t// After modifySelection(), we would end up with this:\n\t\t\t//     <paragraph>A[</paragraph>]<imageBlock></imageBlock><paragraph>B</paragraph>\n\t\t\t//\n\t\t\t// So we need to check if there is no content in the skipped range (because we want to include the <imageBlock>).\n\t\t\tconst skippedRange = model.createRange( newEndPosition, endPosition );\n\n\t\t\tif ( !model.hasContent( skippedRange, { ignoreMarkers: true } ) ) {\n\t\t\t\tendPosition = newEndPosition;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn [\n\t\tLivePosition.fromPosition( startPosition, 'toPrevious' ),\n\t\tLivePosition.fromPosition( endPosition, 'toNext' )\n\t];\n}\n\n/**\n * Finds the lowest element in position's ancestors which is a block.\n * Returns null if a limit element is encountered before reaching a block element.\n */\nfunction getParentBlock( position: Position ): Element | null | undefined {\n\tconst element = position.parent;\n\tconst schema = element.root.document!.model.schema;\n\tconst ancestors = element.getAncestors( { parentFirst: true, includeSelf: true } );\n\n\tfor ( const element of ancestors ) {\n\t\tif ( schema.isLimit( element ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( schema.isBlock( element ) ) {\n\t\t\treturn element as Element;\n\t\t}\n\t}\n}\n\n/**\n * This function is a result of reaching the Ballmer's peak for just the right amount of time.\n * Even I had troubles documenting it after a while and after reading it again I couldn't believe that it really works.\n */\nfunction mergeBranches( writer: Writer, startPosition: Position, endPosition: Position ) {\n\tconst model = writer.model;\n\n\t// Verify if there is a need and possibility to merge.\n\tif ( !checkShouldMerge( writer.model.schema, startPosition, endPosition ) ) {\n\t\treturn;\n\t}\n\n\t// If the start element on the common ancestor level is empty, and the end element on the same level is not empty\n\t// then merge those to the right element so that it's properties are preserved (name, attributes).\n\t// Because of OT merging is used instead of removing elements.\n\t//\n\t// Merge left:\n\t//     <heading1>foo[</heading1>    ->  <heading1>foo[]bar</heading1>\n\t//     <paragraph>]bar</paragraph>  ->               --^\n\t//\n\t// Merge right:\n\t//     <heading1>[</heading1>       ->\n\t//     <paragraph>]bar</paragraph>  ->  <paragraph>[]bar</paragraph>\n\t//\n\t// Merge left:\n\t//     <blockQuote>                     ->  <blockQuote>\n\t//         <heading1>foo[</heading1>    ->      <heading1>foo[]bar</heading1>\n\t//         <paragraph>]bar</paragraph>  ->                   --^\n\t//     </blockQuote>                    ->  </blockQuote>\n\t//\n\t// Merge right:\n\t//     <blockQuote>                     ->  <blockQuote>\n\t//         <heading1>[</heading1>       ->\n\t//         <paragraph>]bar</paragraph>  ->      <paragraph>[]bar</paragraph>\n\t//     </blockQuote>                    ->  </blockQuote>\n\n\t// Merging should not go deeper than common ancestor.\n\tconst [ startAncestor, endAncestor ] = getAncestorsJustBelowCommonAncestor( startPosition, endPosition );\n\n\t// Branches can't be merged if one of the positions is directly inside a common ancestor.\n\t//\n\t// Example:\n\t//     <blockQuote>\n\t//         <paragraph>[foo</paragraph>]\n\t//         <table> ... </table>\n\t//     <blockQuote>\n\t//\n\tif ( !startAncestor || !endAncestor ) {\n\t\treturn;\n\t}\n\n\tif ( !model.hasContent( startAncestor, { ignoreMarkers: true } ) && model.hasContent( endAncestor, { ignoreMarkers: true } ) ) {\n\t\tmergeBranchesRight( writer, startPosition, endPosition, startAncestor.parent );\n\t} else {\n\t\tmergeBranchesLeft( writer, startPosition, endPosition, startAncestor.parent );\n\t}\n}\n\n/**\n * Merging blocks to the left (properties of the left block are preserved).\n * Simple example:\n *\n * ```\n * <heading1>foo[</heading1>    ->  <heading1>foo[bar</heading1>]\n * <paragraph>]bar</paragraph>  ->              --^\n * ```\n *\n * Nested example:\n *\n * ```\n * <blockQuote>                     ->  <blockQuote>\n *     <heading1>foo[</heading1>    ->      <heading1>foo[bar</heading1>\n * </blockQuote>                    ->  </blockQuote>]    ^\n * <blockBlock>                     ->                    |\n *     <paragraph>]bar</paragraph>  ->                 ---\n * </blockBlock>                    ->\n * ```\n */\nfunction mergeBranchesLeft(\n\twriter: Writer,\n\tstartPosition: Position,\n\tendPosition: Position,\n\tcommonAncestor: Element | DocumentFragment | null\n) {\n\tconst startElement = startPosition.parent as Element;\n\tconst endElement = endPosition.parent as Element;\n\n\t// Merging reached the common ancestor element, stop here.\n\tif ( startElement == commonAncestor || endElement == commonAncestor ) {\n\t\treturn;\n\t}\n\n\t// Remember next positions to merge in next recursive step (also used as modification points pointers).\n\tstartPosition = writer.createPositionAfter( startElement );\n\tendPosition = writer.createPositionBefore( endElement );\n\n\t// Move endElement just after startElement if they aren't siblings.\n\tif ( !endPosition.isEqual( startPosition ) ) {\n\t\t//\n\t\t//     <blockQuote>                     ->  <blockQuote>\n\t\t//         <heading1>foo[</heading1>    ->      <heading1>foo</heading1>[<paragraph>bar</paragraph>\n\t\t//     </blockQuote>                    ->  </blockQuote>                ^\n\t\t//     <blockBlock>                     ->  <blockBlock>                 |\n\t\t//         <paragraph>]bar</paragraph>  ->      ]                     ---\n\t\t//     </blockBlock>                    ->  </blockBlock>\n\t\t//\n\t\twriter.insert( endElement, startPosition );\n\t}\n\n\t// Merge two siblings (nodes on sides of startPosition):\n\t//\n\t//     <blockQuote>                                             ->  <blockQuote>\n\t//         <heading1>foo</heading1>[<paragraph>bar</paragraph>  ->      <heading1>foo[bar</heading1>\n\t//     </blockQuote>                                            ->  </blockQuote>\n\t//     <blockBlock>                                             ->  <blockBlock>\n\t//         ]                                                    ->      ]\n\t//     </blockBlock>                                            ->  </blockBlock>\n\t//\n\t// Or in simple case (without moving elements in above if):\n\t//     <heading1>foo</heading1>[<paragraph>bar</paragraph>]  ->  <heading1>foo[bar</heading1>]\n\t//\n\twriter.merge( startPosition );\n\n\t// Remove empty end ancestors:\n\t//\n\t//     <blockQuote>                      ->  <blockQuote>\n\t//         <heading1>foo[bar</heading1>  ->      <heading1>foo[bar</heading1>\n\t//     </blockQuote>                     ->  </blockQuote>\n\t//     <blockBlock>                      ->\n\t//         ]                             ->  ]\n\t//     </blockBlock>                     ->\n\t//\n\twhile ( endPosition.parent.isEmpty ) {\n\t\tconst parentToRemove = endPosition.parent as Element;\n\n\t\tendPosition = writer.createPositionBefore( parentToRemove );\n\n\t\twriter.remove( parentToRemove );\n\t}\n\n\t// Verify if there is a need and possibility to merge next level.\n\tif ( !checkShouldMerge( writer.model.schema, startPosition, endPosition ) ) {\n\t\treturn;\n\t}\n\n\t// Continue merging next level (blockQuote with blockBlock in the examples above if it would not be empty and got removed).\n\tmergeBranchesLeft( writer, startPosition, endPosition, commonAncestor );\n}\n\n/**\n * Merging blocks to the right (properties of the right block are preserved).\n * Simple example:\n *\n * ```\n * <heading1>foo[</heading1>    ->            --v\n * <paragraph>]bar</paragraph>  ->  [<paragraph>foo]bar</paragraph>\n * ```\n *\n * Nested example:\n *\n * ```\n * <blockQuote>                     ->\n *     <heading1>foo[</heading1>    ->              ---\n * </blockQuote>                    ->                 |\n * <blockBlock>                     ->  [<blockBlock>  v\n *     <paragraph>]bar</paragraph>  ->      <paragraph>foo]bar</paragraph>\n * </blockBlock>                    ->  </blockBlock>\n * ```\n */\nfunction mergeBranchesRight(\n\twriter: Writer,\n\tstartPosition: Position,\n\tendPosition: Position,\n\tcommonAncestor: Element | DocumentFragment | null\n) {\n\tconst startElement = startPosition.parent as Element;\n\tconst endElement = endPosition.parent as Element;\n\n\t// Merging reached the common ancestor element, stop here.\n\tif ( startElement == commonAncestor || endElement == commonAncestor ) {\n\t\treturn;\n\t}\n\n\t// Remember next positions to merge in next recursive step (also used as modification points pointers).\n\tstartPosition = writer.createPositionAfter( startElement );\n\tendPosition = writer.createPositionBefore( endElement );\n\n\t// Move startElement just before endElement if they aren't siblings.\n\tif ( !endPosition.isEqual( startPosition ) ) {\n\t\t//\n\t\t//     <blockQuote>                     ->  <blockQuote>\n\t\t//         <heading1>foo[</heading1>    ->      [                   ---\n\t\t//     </blockQuote>                    ->  </blockQuote>              |\n\t\t//     <blockBlock>                     ->  <blockBlock>               v\n\t\t//         <paragraph>]bar</paragraph>  ->      <heading1>foo</heading1>]<paragraph>bar</paragraph>\n\t\t//     </blockBlock>                    ->  </blockBlock>\n\t\t//\n\t\twriter.insert( startElement, endPosition );\n\t}\n\n\t// Remove empty end ancestors:\n\t//\n\t//     <blockQuote>                                             ->\n\t//         [                                                    ->  [\n\t//     </blockQuote>                                            ->\n\t//     <blockBlock>                                             ->  <blockBlock>\n\t//         <heading1>foo</heading1>]<paragraph>bar</paragraph>  ->      <heading1>foo</heading1>]<paragraph>bar</paragraph>\n\t//     </blockBlock>                                            ->  </blockBlock>\n\t//\n\twhile ( startPosition.parent.isEmpty ) {\n\t\tconst parentToRemove = startPosition.parent as Element;\n\n\t\tstartPosition = writer.createPositionBefore( parentToRemove );\n\n\t\twriter.remove( parentToRemove );\n\t}\n\n\t// Update endPosition after inserting and removing elements.\n\tendPosition = writer.createPositionBefore( endElement );\n\n\t// Merge right two siblings (nodes on sides of endPosition):\n\t//                                                              ->\n\t//     [                                                        ->  [\n\t//                                                              ->\n\t//     <blockBlock>                                             ->  <blockBlock>\n\t//         <heading1>foo</heading1>]<paragraph>bar</paragraph>  ->      <paragraph>foo]bar</paragraph>\n\t//     </blockBlock>                                            ->  </blockBlock>\n\t//\n\t// Or in simple case (without moving elements in above if):\n\t//     [<heading1>foo</heading1>]<paragraph>bar</paragraph>  ->  [<heading1>foo]bar</heading1>\n\t//\n\tmergeRight( writer, endPosition );\n\n\t// Verify if there is a need and possibility to merge next level.\n\tif ( !checkShouldMerge( writer.model.schema, startPosition, endPosition ) ) {\n\t\treturn;\n\t}\n\n\t// Continue merging next level (blockQuote with blockBlock in the examples above if it would not be empty and got removed).\n\tmergeBranchesRight( writer, startPosition, endPosition, commonAncestor );\n}\n\n/**\n * There is no right merge operation so we need to simulate it.\n */\nfunction mergeRight( writer: Writer, position: Position ) {\n\tconst startElement: any = position.nodeBefore;\n\tconst endElement: any = position.nodeAfter;\n\n\tif ( startElement.name != endElement.name ) {\n\t\twriter.rename( startElement, endElement.name );\n\t}\n\n\twriter.clearAttributes( startElement );\n\twriter.setAttributes( Object.fromEntries( endElement.getAttributes() ), startElement );\n\n\twriter.merge( position );\n}\n\n/**\n * Verifies if merging is needed and possible. It's not needed if both positions are in the same element\n * and it's not possible if some element is a limit or the range crosses a limit element.\n */\nfunction checkShouldMerge( schema: Schema, startPosition: Position, endPosition: Position ): boolean {\n\tconst startElement = startPosition.parent;\n\tconst endElement = endPosition.parent;\n\n\t// If both positions ended up in the same parent, then there's nothing more to merge:\n\t// <$root><p>x[</p><p>]y</p></$root> => <$root><p>xy</p>[]</$root>\n\tif ( startElement == endElement ) {\n\t\treturn false;\n\t}\n\n\t// If one of the positions is a limit element, then there's nothing to merge because we don't want to cross the limit boundaries.\n\tif ( schema.isLimit( startElement ) || schema.isLimit( endElement ) ) {\n\t\treturn false;\n\t}\n\n\t// Check if operations we'll need to do won't need to cross object or limit boundaries.\n\t// E.g., we can't merge endElement into startElement in this case:\n\t// <limit><startElement>x[</startElement></limit><endElement>]</endElement>\n\treturn isCrossingLimitElement( startPosition, endPosition, schema );\n}\n\n/**\n * Returns the elements that are the ancestors of the provided positions that are direct children of the common ancestor.\n */\nfunction getAncestorsJustBelowCommonAncestor( positionA: Position, positionB: Position ) {\n\tconst ancestorsA = positionA.getAncestors();\n\tconst ancestorsB = positionB.getAncestors();\n\n\tlet i = 0;\n\n\twhile ( ancestorsA[ i ] && ancestorsA[ i ] == ancestorsB[ i ] ) {\n\t\ti++;\n\t}\n\n\treturn [ ancestorsA[ i ], ancestorsB[ i ] ];\n}\n\nfunction shouldAutoparagraph( schema: Schema, position: Position ) {\n\tconst isTextAllowed = schema.checkChild( position, '$text' );\n\tconst isParagraphAllowed = schema.checkChild( position, 'paragraph' );\n\n\treturn !isTextAllowed && isParagraphAllowed;\n}\n\n/**\n * Check if parents of two positions can be merged by checking if there are no limit/object\n * boundaries between those two positions.\n *\n * E.g. in <bQ><p>x[]</p></bQ><widget><caption>{}</caption></widget>\n * we'll check <p>, <bQ>, <widget> and <caption>.\n * Usually, widget and caption are marked as objects/limits in the schema, so in this case merging will be blocked.\n */\nfunction isCrossingLimitElement( leftPos: Position, rightPos: Position, schema: Schema ) {\n\tconst rangeToCheck = new Range( leftPos, rightPos );\n\n\tfor ( const value of rangeToCheck.getWalker() ) {\n\t\tif ( schema.isLimit( value.item ) ) {\n\t\t\treturn false;\n\t\t}\n\t}\n\n\treturn true;\n}\n\nfunction insertParagraph(\n\twriter: Writer,\n\tposition: Position,\n\tselection: Selection | DocumentSelection,\n\tattributes = {}\n) {\n\tconst paragraph = writer.createElement( 'paragraph' );\n\n\twriter.model.schema.setAllowedAttributes( paragraph, attributes, writer );\n\n\twriter.insert( paragraph, position );\n\n\tcollapseSelectionAt( writer, selection, writer.createPositionAt( paragraph, 0 ) );\n}\n\nfunction replaceEntireContentWithParagraph( writer: Writer, selection: Selection | DocumentSelection ) {\n\tconst limitElement = writer.model.schema.getLimitElement( selection );\n\n\twriter.remove( writer.createRangeIn( limitElement ) );\n\tinsertParagraph( writer, writer.createPositionAt( limitElement, 0 ), selection );\n}\n\n/**\n * We want to replace the entire content with a paragraph when:\n * * the entire content is selected,\n * * selection contains at least two elements,\n * * whether the paragraph is allowed in schema in the common ancestor.\n */\nfunction shouldEntireContentBeReplacedWithParagraph( schema: Schema, selection: Selection | DocumentSelection ) {\n\tconst limitElement = schema.getLimitElement( selection );\n\n\tif ( !selection.containsEntireContent( limitElement ) ) {\n\t\treturn false;\n\t}\n\n\tconst range = selection.getFirstRange()!;\n\n\tif ( range.start.parent == range.end.parent ) {\n\t\treturn false;\n\t}\n\n\treturn schema.checkChild( limitElement, 'paragraph' );\n}\n\n/**\n * Helper function that sets the selection. Depending whether given `selection` is a document selection or not,\n * uses a different method to set it.\n */\nfunction collapseSelectionAt(\n\twriter: Writer,\n\tselection: Selection | DocumentSelection,\n\tpositionOrRange: Position | Range\n) {\n\tif ( selection instanceof DocumentSelection ) {\n\t\twriter.setSelection( positionOrRange );\n\t} else {\n\t\tselection.setTo( positionOrRange );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type DocumentFragment from '../documentfragment';\nimport type DocumentSelection from '../documentselection';\nimport type Element from '../element';\nimport type Model from '../model';\nimport type Range from '../range';\nimport type Selection from '../selection';\nimport type Writer from '../writer';\n\n/**\n * @module engine/model/utils/getselectedcontent\n */\n\n/**\n * Gets a clone of the selected content.\n *\n * For example, for the following selection:\n *\n * ```html\n * <p>x</p><quote><p>y</p><h>fir[st</h></quote><p>se]cond</p><p>z</p>\n * ```\n *\n * It will return a document fragment with such a content:\n *\n * ```html\n * <quote><h>st</h></quote><p>se</p>\n * ```\n *\n * @param model The model in context of which the selection modification should be performed.\n * @param selection The selection of which content will be returned.\n */\nexport default function getSelectedContent(\n\tmodel: Model,\n\tselection: Selection | DocumentSelection\n): DocumentFragment {\n\treturn model.change( writer => {\n\t\tconst frag = writer.createDocumentFragment();\n\t\tconst range = selection.getFirstRange();\n\n\t\tif ( !range || range.isCollapsed ) {\n\t\t\treturn frag;\n\t\t}\n\n\t\tconst root = range.start.root;\n\t\tconst commonPath = range.start.getCommonPath( range.end );\n\t\tconst commonParent = root.getNodeByPath( commonPath );\n\n\t\t// ## 1st step\n\t\t//\n\t\t// First, we'll clone a fragment represented by a minimal flat range\n\t\t// containing the original range to be cloned.\n\t\t// E.g. let's consider such a range:\n\t\t//\n\t\t// <p>x</p><quote><p>y</p><h>fir[st</h></quote><p>se]cond</p><p>z</p>\n\t\t//\n\t\t// A minimal flat range containing this one is:\n\t\t//\n\t\t// <p>x</p>[<quote><p>y</p><h>first</h></quote><p>second</p>]<p>z</p>\n\t\t//\n\t\t// We can easily clone this structure, preserving e.g. the <quote> element.\n\t\tlet flatSubtreeRange: Range;\n\n\t\tif ( range.start.parent == range.end.parent ) {\n\t\t\t// The original range is flat, so take it.\n\t\t\tflatSubtreeRange = range;\n\t\t} else {\n\t\t\tflatSubtreeRange = writer.createRange(\n\t\t\t\twriter.createPositionAt( commonParent, range.start.path[ commonPath.length ] ),\n\t\t\t\twriter.createPositionAt( commonParent, range.end.path[ commonPath.length ] + 1 )\n\t\t\t);\n\t\t}\n\n\t\tconst howMany = flatSubtreeRange.end.offset - flatSubtreeRange.start.offset;\n\n\t\t// Clone the whole contents.\n\t\tfor ( const item of flatSubtreeRange.getItems( { shallow: true } ) ) {\n\t\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\t\twriter.appendText( item.data, item.getAttributes(), frag );\n\t\t\t} else {\n\t\t\t\twriter.append( writer.cloneElement( item as Element, true ), frag );\n\t\t\t}\n\t\t}\n\n\t\t// ## 2nd step\n\t\t//\n\t\t// If the original range wasn't flat, then we need to remove the excess nodes from the both ends of the cloned fragment.\n\t\t//\n\t\t// For example, for the range shown in the 1st step comment, we need to remove these pieces:\n\t\t//\n\t\t// <quote>[<p>y</p>]<h>[fir]st</h></quote><p>se[cond]</p>\n\t\t//\n\t\t// So this will be the final copied content:\n\t\t//\n\t\t// <quote><h>st</h></quote><p>se</p>\n\t\t//\n\t\t// In order to do that, we remove content from these two ranges:\n\t\t//\n\t\t// [<quote><p>y</p><h>fir]st</h></quote><p>se[cond</p>]\n\t\tif ( flatSubtreeRange != range ) {\n\t\t\t// Find the position of the original range in the cloned fragment.\n\t\t\tconst newRange = range._getTransformedByMove( flatSubtreeRange.start, writer.createPositionAt( frag, 0 ), howMany )[ 0 ];\n\n\t\t\tconst leftExcessRange = writer.createRange( writer.createPositionAt( frag, 0 ), newRange.start );\n\t\t\tconst rightExcessRange = writer.createRange( newRange.end, writer.createPositionAt( frag, 'end' ) );\n\n\t\t\tremoveRangeContent( rightExcessRange, writer );\n\t\t\tremoveRangeContent( leftExcessRange, writer );\n\t\t}\n\n\t\treturn frag;\n\t} );\n}\n\n// After https://github.com/ckeditor/ckeditor5-engine/issues/690 is fixed,\n// this function will, most likely, be able to rewritten using getMinimalFlatRanges().\nfunction removeRangeContent( range: Range, writer: Writer ) {\n\tconst parentsToCheck: Array<Element | DocumentFragment> = [];\n\n\tArray.from( range.getItems( { direction: 'backward' } ) )\n\t\t// We should better store ranges because text proxies will lose integrity\n\t\t// with the text nodes when we'll start removing content.\n\t\t.map( item => writer.createRangeOn( item ) )\n\t\t// Filter only these items which are fully contained in the passed range.\n\t\t//\n\t\t// E.g. for the following range: [<quote><p>y</p><h>fir]st</h>\n\t\t// the walker will return the entire <h> element, when only the \"fir\" item inside it is fully contained.\n\t\t.filter( itemRange => {\n\t\t\t// We should be able to use Range.containsRange, but https://github.com/ckeditor/ckeditor5-engine/issues/691.\n\t\t\tconst contained =\n\t\t\t\t( itemRange.start.isAfter( range.start ) || itemRange.start.isEqual( range.start ) ) &&\n\t\t\t\t( itemRange.end.isBefore( range.end ) || itemRange.end.isEqual( range.end ) );\n\n\t\t\treturn contained;\n\t\t} )\n\t\t.forEach( itemRange => {\n\t\t\tparentsToCheck.push( itemRange.start.parent );\n\n\t\t\twriter.remove( itemRange );\n\t\t} );\n\n\t// Remove ancestors of the removed items if they turned to be empty now\n\t// (their whole content was contained in the range).\n\tparentsToCheck.forEach( parentToCheck => {\n\t\tlet parent = parentToCheck;\n\n\t\twhile ( parent.parent && parent.isEmpty ) {\n\t\t\tconst removeRange = writer.createRangeOn( parent );\n\n\t\t\tparent = parent.parent;\n\n\t\t\twriter.remove( removeRange );\n\t\t}\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/insertcontent\n */\n\nimport DocumentSelection from '../documentselection';\nimport Element from '../element';\nimport LivePosition from '../liveposition';\nimport LiveRange from '../liverange';\nimport Position from '../position';\nimport Range from '../range';\n\nimport type DocumentFragment from '../documentfragment';\nimport type Item from '../item';\nimport type Model from '../model';\nimport type Schema from '../schema';\nimport type Writer from '../writer';\nimport type Node from '../node';\nimport type Selection from '../selection';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Inserts content into the editor (specified selection) as one would expect the paste functionality to work.\n *\n * It takes care of removing the selected content, splitting elements (if needed), inserting elements and merging elements appropriately.\n *\n * Some examples:\n *\n * ```html\n * <p>x^</p> + <p>y</p> => <p>x</p><p>y</p> => <p>xy[]</p>\n * <p>x^y</p> + <p>z</p> => <p>x</p>^<p>y</p> + <p>z</p> => <p>x</p><p>z</p><p>y</p> => <p>xz[]y</p>\n * <p>x^y</p> + <img /> => <p>x</p>^<p>y</p> + <img /> => <p>x</p><img /><p>y</p>\n * <p>x</p><p>^</p><p>z</p> + <p>y</p> => <p>x</p><p>y[]</p><p>z</p> (no merging)\n * <p>x</p>[<img />]<p>z</p> + <p>y</p> => <p>x</p>^<p>z</p> + <p>y</p> => <p>x</p><p>y[]</p><p>z</p>\n * ```\n *\n * If an instance of {@link module:engine/model/selection~Selection} is passed as `selectable` it will be modified\n * to the insertion selection (equal to a range to be selected after insertion).\n *\n * If `selectable` is not passed, the content will be inserted using the current selection of the model document.\n *\n * **Note:** Use {@link module:engine/model/model~Model#insertContent} instead of this function.\n * This function is only exposed to be reusable in algorithms which change the {@link module:engine/model/model~Model#insertContent}\n * method's behavior.\n *\n * @param model The model in context of which the insertion should be performed.\n * @param content The content to insert.\n * @param selectable Selection into which the content should be inserted.\n * @param placeOrOffset Sets place or offset of the selection.\n * @returns Range which contains all the performed changes. This is a range that, if removed,\n * would return the model to the state before the insertion. If no changes were preformed by `insertContent`, returns a range collapsed\n * at the insertion position.\n */\nexport default function insertContent(\n\tmodel: Model,\n\tcontent: Item | DocumentFragment,\n\tselectable?: Selection | DocumentSelection\n): Range {\n\treturn model.change( writer => {\n\t\tconst selection: Selection | DocumentSelection = selectable ? selectable : model.document.selection;\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\tmodel.deleteContent( selection, { doNotAutoparagraph: true } );\n\t\t}\n\n\t\tconst insertion = new Insertion( model, writer, selection.anchor! );\n\t\tconst fakeMarkerElements = [];\n\n\t\tlet nodesToInsert: any;\n\n\t\tif ( content.is( 'documentFragment' ) ) {\n\t\t\t// If document fragment has any markers, these markers should be inserted into the model as well.\n\t\t\tif ( content.markers.size ) {\n\t\t\t\tconst markersPosition = [];\n\n\t\t\t\tfor ( const [ name, range ] of content.markers ) {\n\t\t\t\t\tconst { start, end } = range;\n\t\t\t\t\tconst isCollapsed = start.isEqual( end );\n\n\t\t\t\t\tmarkersPosition.push(\n\t\t\t\t\t\t{ position: start, name, isCollapsed },\n\t\t\t\t\t\t{ position: end, name, isCollapsed }\n\t\t\t\t\t);\n\t\t\t\t}\n\n\t\t\t\t// Markers position is sorted backwards to ensure that the insertion of fake markers will not change\n\t\t\t\t// the position of the next markers.\n\t\t\t\tmarkersPosition.sort( ( { position: posA }, { position: posB } ) => posA.isBefore( posB ) ? 1 : -1 );\n\n\t\t\t\tfor ( const { position, name, isCollapsed } of markersPosition ) {\n\t\t\t\t\tlet fakeElement = null;\n\t\t\t\t\tlet collapsed = null;\n\t\t\t\t\tconst isAtBeginning = position.parent === content && position.isAtStart;\n\t\t\t\t\tconst isAtEnd = position.parent === content && position.isAtEnd;\n\n\t\t\t\t\t// We have two ways of handling markers. In general, we want to add temporary <$marker> model elements to\n\t\t\t\t\t// represent marker boundaries. These elements will be inserted into content together with the rest\n\t\t\t\t\t// of the document fragment. After insertion is done, positions for these elements will be read\n\t\t\t\t\t// and proper, actual markers will be created in the model and fake elements will be removed.\n\t\t\t\t\t//\n\t\t\t\t\t// However, if the <$marker> element is at the beginning or at the end of the document fragment,\n\t\t\t\t\t// it may affect how the inserted content is merged with current model, impacting the insertion\n\t\t\t\t\t// result. To avoid that, we don't add <$marker> elements at these positions. Instead, we will use\n\t\t\t\t\t// `Insertion#getAffectedRange()` to figure out new positions for these marker boundaries.\n\t\t\t\t\tif ( !isAtBeginning && !isAtEnd ) {\n\t\t\t\t\t\tfakeElement = writer.createElement( '$marker' );\n\t\t\t\t\t\twriter.insert( fakeElement, position );\n\t\t\t\t\t} else if ( isCollapsed ) {\n\t\t\t\t\t\t// Save whether the collapsed marker was at the beginning or at the end of document fragment\n\t\t\t\t\t\t// to know where to create it after the insertion is done.\n\t\t\t\t\t\tcollapsed = isAtBeginning ? 'start' as const : 'end' as const;\n\t\t\t\t\t}\n\n\t\t\t\t\tfakeMarkerElements.push( {\n\t\t\t\t\t\tname,\n\t\t\t\t\t\telement: fakeElement,\n\t\t\t\t\t\tcollapsed\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tnodesToInsert = content.getChildren();\n\t\t} else {\n\t\t\tnodesToInsert = [ content ];\n\t\t}\n\n\t\tinsertion.handleNodes( nodesToInsert );\n\n\t\tlet newRange = insertion.getSelectionRange();\n\n\t\tif ( content.is( 'documentFragment' ) && fakeMarkerElements.length ) {\n\t\t\t// After insertion was done, the selection was set but the model contains fake <$marker> elements.\n\t\t\t// These <$marker> elements will be now removed. Because of that, we will need to fix the selection.\n\t\t\t// We will create a live range that will automatically be update as <$marker> elements are removed.\n\t\t\tconst selectionLiveRange = newRange ? LiveRange.fromRange( newRange ) : null;\n\n\t\t\t// Marker name -> [ start position, end position ].\n\t\t\tconst markersData: Record<string, Array<Position>> = {};\n\n\t\t\t// Note: `fakeMarkerElements` are sorted backwards. However, now, we want to handle the markers\n\t\t\t// from the beginning, so that existing <$marker> elements do not affect markers positions.\n\t\t\t// This is why we iterate from the end to the start.\n\t\t\tfor ( let i = fakeMarkerElements.length - 1; i >= 0; i-- ) {\n\t\t\t\tconst { name, element, collapsed } = fakeMarkerElements[ i ];\n\t\t\t\tconst isStartBoundary = !markersData[ name ];\n\n\t\t\t\tif ( isStartBoundary ) {\n\t\t\t\t\tmarkersData[ name ] = [];\n\t\t\t\t}\n\n\t\t\t\tif ( element ) {\n\t\t\t\t\t// Read fake marker element position to learn where the marker should be created.\n\t\t\t\t\tconst elementPosition = writer.createPositionAt( element, 'before' );\n\n\t\t\t\t\tmarkersData[ name ].push( elementPosition );\n\n\t\t\t\t\twriter.remove( element );\n\t\t\t\t} else {\n\t\t\t\t\t// If the fake marker element does not exist, it means that the marker boundary was at the beginning or at the end.\n\t\t\t\t\tconst rangeOnInsertion = insertion.getAffectedRange();\n\n\t\t\t\t\tif ( !rangeOnInsertion ) {\n\t\t\t\t\t\t// If affected range is `null` it means that nothing was in the document fragment or all content was filtered out.\n\t\t\t\t\t\t// Some markers that were in the filtered content may be removed (partially or totally).\n\t\t\t\t\t\t// Let's handle only those markers that were at the beginning or at the end of the document fragment.\n\t\t\t\t\t\tif ( collapsed ) {\n\t\t\t\t\t\t\tmarkersData[ name ].push( insertion.position );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( collapsed ) {\n\t\t\t\t\t\t// If the marker was collapsed at the beginning or at the end of the document fragment,\n\t\t\t\t\t\t// put both boundaries at the beginning or at the end of inserted range (to keep the marker collapsed).\n\t\t\t\t\t\tmarkersData[ name ].push( rangeOnInsertion[ collapsed ] );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tmarkersData[ name ].push( isStartBoundary ? rangeOnInsertion.start : rangeOnInsertion.end );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tfor ( const [ name, [ start, end ] ] of Object.entries( markersData ) ) {\n\t\t\t\t// For now, we ignore markers if they are included in the filtered-out content.\n\t\t\t\t// In the future implementation we will improve that case to create markers that are not filtered out completely.\n\t\t\t\tif ( start && end && start.root === end.root ) {\n\t\t\t\t\twriter.addMarker( name, {\n\t\t\t\t\t\tusingOperation: true,\n\t\t\t\t\t\taffectsData: true,\n\t\t\t\t\t\trange: new Range( start, end )\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( selectionLiveRange ) {\n\t\t\t\tnewRange = selectionLiveRange.toRange();\n\t\t\t\tselectionLiveRange.detach();\n\t\t\t}\n\t\t}\n\n\t\t/* istanbul ignore else -- @preserve */\n\t\tif ( newRange ) {\n\t\t\tif ( selection instanceof DocumentSelection ) {\n\t\t\t\twriter.setSelection( newRange );\n\t\t\t} else {\n\t\t\t\tselection.setTo( newRange );\n\t\t\t}\n\t\t} else {\n\t\t\t// We are not testing else because it's a safe check for unpredictable edge cases:\n\t\t\t// an insertion without proper range to select.\n\t\t\t//\n\t\t\t// @if CK_DEBUG // console.warn( 'Cannot determine a proper selection range after insertion.' );\n\t\t}\n\n\t\tconst affectedRange = insertion.getAffectedRange() || model.createRange( selection.anchor! );\n\n\t\tinsertion.destroy();\n\n\t\treturn affectedRange;\n\t} );\n}\n\n/**\n * Utility class for performing content insertion.\n */\nclass Insertion {\n\t/**\n\t * The model in context of which the insertion should be performed.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * Batch to which operations will be added.\n\t */\n\tpublic readonly writer: Writer;\n\n\t/**\n\t * The position at which (or near which) the next node will be inserted.\n\t */\n\tpublic position: Position;\n\n\t/**\n\t * Elements with which the inserted elements can be merged.\n\t *\n\t * ```html\n\t * <p>x^</p><p>y</p> + <p>z</p> (can merge to <p>x</p>)\n\t * <p>x</p><p>^y</p> + <p>z</p> (can merge to <p>y</p>)\n\t * <p>x^y</p> + <p>z</p> (can merge to <p>xy</p> which will be split during the action,\n\t * \t\t\t\t\t\tso both its pieces will be added to this set)\n\t * ```\n\t */\n\tpublic readonly canMergeWith: Set<Node | DocumentFragment | null>;\n\n\t/**\n\t * Schema of the model.\n\t */\n\tpublic readonly schema: Schema;\n\n\t/**\n\t * The temporary DocumentFragment used for grouping multiple nodes for single insert operation.\n\t */\n\tprivate readonly _documentFragment: DocumentFragment;\n\n\t/**\n\t * The current position in the temporary DocumentFragment.\n\t */\n\tprivate _documentFragmentPosition: Position;\n\n\t/**\n\t * The reference to the first inserted node.\n\t */\n\tprivate _firstNode: Node | null = null;\n\n\t/**\n\t * The reference to the last inserted node.\n\t */\n\tprivate _lastNode: Node | null = null;\n\n\t/**\n\t * The reference to the last auto paragraph node.\n\t */\n\tprivate _lastAutoParagraph: Element | null = null;\n\n\t/**\n\t * The array of nodes that should be cleaned of not allowed attributes.\n\t */\n\tprivate _filterAttributesOf: Array<Node> = [];\n\n\t/**\n\t * Beginning of the affected range. See {@link module:engine/model/utils/insertcontent~Insertion#getAffectedRange}.\n\t */\n\tprivate _affectedStart: LivePosition | null = null;\n\n\t/**\n\t * End of the affected range. See {@link module:engine/model/utils/insertcontent~Insertion#getAffectedRange}.\n\t */\n\tprivate _affectedEnd: LivePosition | null = null;\n\n\tprivate _nodeToSelect: Node | null = null;\n\n\tconstructor( model: Model, writer: Writer, position: Position ) {\n\t\tthis.model = model;\n\t\tthis.writer = writer;\n\t\tthis.position = position;\n\t\tthis.canMergeWith = new Set( [ this.position.parent ] );\n\t\tthis.schema = model.schema;\n\n\t\tthis._documentFragment = writer.createDocumentFragment();\n\t\tthis._documentFragmentPosition = writer.createPositionAt( this._documentFragment, 0 );\n\t}\n\n\t/**\n\t * Handles insertion of a set of nodes.\n\t *\n\t * @param nodes Nodes to insert.\n\t */\n\tpublic handleNodes( nodes: Iterable<Node> ): void {\n\t\tfor ( const node of Array.from( nodes ) ) {\n\t\t\tthis._handleNode( node );\n\t\t}\n\n\t\t// Insert nodes collected in temporary DocumentFragment.\n\t\tthis._insertPartialFragment();\n\n\t\t// If there was an auto paragraph then we might need to adjust the end of insertion.\n\t\tif ( this._lastAutoParagraph ) {\n\t\t\tthis._updateLastNodeFromAutoParagraph( this._lastAutoParagraph );\n\t\t}\n\n\t\t// After the content was inserted we may try to merge it with its next sibling if the selection was in it initially.\n\t\t// Merging with the previous sibling was performed just after inserting the first node to the document.\n\t\tthis._mergeOnRight();\n\n\t\t// TMP this will become a post-fixer.\n\t\tthis.schema.removeDisallowedAttributes( this._filterAttributesOf, this.writer );\n\t\tthis._filterAttributesOf = [];\n\t}\n\n\t/**\n\t * Updates the last node after the auto paragraphing.\n\t *\n\t * @param node The last auto paragraphing node.\n\t */\n\tprivate _updateLastNodeFromAutoParagraph( node: Node ): void {\n\t\tconst positionAfterLastNode = this.writer.createPositionAfter( this._lastNode! );\n\t\tconst positionAfterNode = this.writer.createPositionAfter( node );\n\n\t\t// If the real end was after the last auto paragraph then update relevant properties.\n\t\tif ( positionAfterNode.isAfter( positionAfterLastNode ) ) {\n\t\t\tthis._lastNode = node;\n\n\t\t\t/* istanbul ignore if -- @preserve */\n\t\t\tif ( this.position.parent != node || !this.position.isAtEnd ) {\n\t\t\t\t// Algorithm's correctness check. We should never end up here but it's good to know that we did.\n\t\t\t\t// At this point the insertion position should be at the end of the last auto paragraph.\n\t\t\t\t// Note: This error is documented in other place in this file.\n\t\t\t\tthrow new CKEditorError( 'insertcontent-invalid-insertion-position', this );\n\t\t\t}\n\n\t\t\tthis.position = positionAfterNode;\n\t\t\tthis._setAffectedBoundaries( this.position );\n\t\t}\n\t}\n\n\t/**\n\t * Returns range to be selected after insertion.\n\t * Returns `null` if there is no valid range to select after insertion.\n\t */\n\tpublic getSelectionRange(): Range | null {\n\t\tif ( this._nodeToSelect ) {\n\t\t\treturn Range._createOn( this._nodeToSelect );\n\t\t}\n\n\t\treturn this.model.schema.getNearestSelectionRange( this.position );\n\t}\n\n\t/**\n\t * Returns a range which contains all the performed changes. This is a range that, if removed, would return the model to the state\n\t * before the insertion. Returns `null` if no changes were done.\n\t */\n\tpublic getAffectedRange(): Range | null {\n\t\tif ( !this._affectedStart ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn new Range( this._affectedStart, this._affectedEnd );\n\t}\n\n\t/**\n\t * Destroys `Insertion` instance.\n\t */\n\tpublic destroy(): void {\n\t\tif ( this._affectedStart ) {\n\t\t\tthis._affectedStart.detach();\n\t\t}\n\n\t\tif ( this._affectedEnd ) {\n\t\t\tthis._affectedEnd.detach();\n\t\t}\n\t}\n\n\t/**\n\t * Handles insertion of a single node.\n\t */\n\tprivate _handleNode( node: Node ): void {\n\t\t// Let's handle object in a special way.\n\t\t// * They should never be merged with other elements.\n\t\t// * If they are not allowed in any of the selection ancestors, they could be either autoparagraphed or totally removed.\n\t\tif ( this.schema.isObject( node ) ) {\n\t\t\tthis._handleObject( node as Element );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Try to find a place for the given node.\n\n\t\t// Check if a node can be inserted in the given position or it would be accepted if a paragraph would be inserted.\n\t\t// Inserts the auto paragraph if it would allow for insertion.\n\t\tlet isAllowed = this._checkAndAutoParagraphToAllowedPosition( node );\n\n\t\tif ( !isAllowed ) {\n\t\t\t// Split the position.parent's branch up to a point where the node can be inserted.\n\t\t\t// If it isn't allowed in the whole branch, then of course don't split anything.\n\t\t\tisAllowed = this._checkAndSplitToAllowedPosition( node );\n\n\t\t\tif ( !isAllowed ) {\n\t\t\t\tthis._handleDisallowedNode( node );\n\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\t// Add node to the current temporary DocumentFragment.\n\t\tthis._appendToFragment( node );\n\n\t\t// Store the first and last nodes for easy access for merging with sibling nodes.\n\t\tif ( !this._firstNode ) {\n\t\t\tthis._firstNode = node;\n\t\t}\n\n\t\tthis._lastNode = node;\n\t}\n\n\t/**\n\t * Inserts the temporary DocumentFragment into the model.\n\t */\n\tprivate _insertPartialFragment(): void {\n\t\tif ( this._documentFragment.isEmpty ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst livePosition = LivePosition.fromPosition( this.position, 'toNext' );\n\n\t\tthis._setAffectedBoundaries( this.position );\n\n\t\t// If the very first node of the whole insertion process is inserted, insert it separately for OT reasons (undo).\n\t\t// Note: there can be multiple calls to `_insertPartialFragment()` during one insertion process.\n\t\t// Note: only the very first node can be merged so we have to do separate operation only for it.\n\t\tif ( this._documentFragment.getChild( 0 ) == this._firstNode ) {\n\t\t\tthis.writer.insert( this._firstNode!, this.position );\n\n\t\t\t// We must merge the first node just after inserting it to avoid problems with OT.\n\t\t\t// (See: https://github.com/ckeditor/ckeditor5/pull/8773#issuecomment-760945652).\n\t\t\tthis._mergeOnLeft();\n\n\t\t\tthis.position = livePosition.toPosition();\n\t\t}\n\n\t\t// Insert the remaining nodes from document fragment.\n\t\tif ( !this._documentFragment.isEmpty ) {\n\t\t\tthis.writer.insert( this._documentFragment, this.position );\n\t\t}\n\n\t\tthis._documentFragmentPosition = this.writer.createPositionAt( this._documentFragment, 0 );\n\n\t\tthis.position = livePosition.toPosition();\n\t\tlivePosition.detach();\n\t}\n\n\t/**\n\t * @param node The object element.\n\t */\n\tprivate _handleObject( node: Element ): void {\n\t\t// Try finding it a place in the tree.\n\t\tif ( this._checkAndSplitToAllowedPosition( node ) ) {\n\t\t\tthis._appendToFragment( node );\n\t\t}\n\t\t// Try autoparagraphing.\n\t\telse {\n\t\t\tthis._tryAutoparagraphing( node );\n\t\t}\n\t}\n\n\t/**\n\t * @param node The disallowed node which needs to be handled.\n\t */\n\tprivate _handleDisallowedNode( node: Node ): void {\n\t\t// If the node is an element, try inserting its children (strip the parent).\n\t\tif ( node.is( 'element' ) ) {\n\t\t\tthis.handleNodes( node.getChildren() );\n\t\t}\n\t\t// If text is not allowed, try autoparagraphing it.\n\t\telse {\n\t\t\tthis._tryAutoparagraphing( node );\n\t\t}\n\t}\n\n\t/**\n\t * Append a node to the temporary DocumentFragment.\n\t *\n\t * @param node The node to insert.\n\t */\n\tprivate _appendToFragment( node: Node ): void {\n\t\t/* istanbul ignore if -- @preserve */\n\t\tif ( !this.schema.checkChild( this.position, node ) ) {\n\t\t\t// Algorithm's correctness check. We should never end up here but it's good to know that we did.\n\t\t\t// Note that it would often be a silent issue if we insert node in a place where it's not allowed.\n\n\t\t\t/**\n\t\t\t * Given node cannot be inserted on the given position.\n\t\t\t *\n\t\t\t * @error insertcontent-wrong-position\n\t\t\t * @param node Node to insert.\n\t\t\t * @param position Position to insert the node at.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'insertcontent-wrong-position',\n\t\t\t\tthis,\n\t\t\t\t{ node, position: this.position }\n\t\t\t);\n\t\t}\n\n\t\tthis.writer.insert( node, this._documentFragmentPosition );\n\t\tthis._documentFragmentPosition = this._documentFragmentPosition.getShiftedBy( node.offsetSize );\n\n\t\t// The last inserted object should be selected because we can't put a collapsed selection after it.\n\t\tif ( this.schema.isObject( node ) && !this.schema.checkChild( this.position, '$text' ) ) {\n\t\t\tthis._nodeToSelect = node;\n\t\t} else {\n\t\t\tthis._nodeToSelect = null;\n\t\t}\n\n\t\tthis._filterAttributesOf.push( node );\n\t}\n\n\t/**\n\t * Sets `_affectedStart` and `_affectedEnd` to the given `position`. Should be used before a change is done during insertion process to\n\t * mark the affected range.\n\t *\n\t * This method is used before inserting a node or splitting a parent node. `_affectedStart` and `_affectedEnd` are also changed\n\t * during merging, but the logic there is more complicated so it is left out of this function.\n\t */\n\tprivate _setAffectedBoundaries( position: Position ): void {\n\t\t// Set affected boundaries stickiness so that those position will \"expand\" when something is inserted in between them:\n\t\t// <paragraph>Foo][bar</paragraph> -> <paragraph>Foo]xx[bar</paragraph>\n\t\t// This is why it cannot be a range but two separate positions.\n\t\tif ( !this._affectedStart ) {\n\t\t\tthis._affectedStart = LivePosition.fromPosition( position, 'toPrevious' );\n\t\t}\n\n\t\t// If `_affectedEnd` is before the new boundary position, expand `_affectedEnd`. This can happen if first inserted node was\n\t\t// inserted into the parent but the next node is moved-out of that parent:\n\t\t// (1) <paragraph>Foo][</paragraph> -> <paragraph>Foo]xx[</paragraph>\n\t\t// (2) <paragraph>Foo]xx[</paragraph> -> <paragraph>Foo]xx</paragraph><widget></widget>[\n\t\tif ( !this._affectedEnd || this._affectedEnd.isBefore( position ) ) {\n\t\t\tif ( this._affectedEnd ) {\n\t\t\t\tthis._affectedEnd.detach();\n\t\t\t}\n\n\t\t\tthis._affectedEnd = LivePosition.fromPosition( position, 'toNext' );\n\t\t}\n\t}\n\n\t/**\n\t * Merges the previous sibling of the first node if it should be merged.\n\t *\n\t * After the content was inserted we may try to merge it with its siblings.\n\t * This should happen only if the selection was in those elements initially.\n\t */\n\tprivate _mergeOnLeft(): void {\n\t\tconst node = this._firstNode;\n\n\t\tif ( !( node instanceof Element ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !this._canMergeLeft( node ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst mergePosLeft = LivePosition._createBefore( node );\n\t\tmergePosLeft.stickiness = 'toNext';\n\n\t\tconst livePosition = LivePosition.fromPosition( this.position, 'toNext' );\n\n\t\t// If `_affectedStart` is sames as merge position, it means that the element \"marked\" by `_affectedStart` is going to be\n\t\t// removed and its contents will be moved. This won't transform `LivePosition` so `_affectedStart` needs to be moved\n\t\t// by hand to properly reflect affected range. (Due to `_affectedStart` and `_affectedEnd` stickiness, the \"range\" is\n\t\t// shown as `][`).\n\t\t//\n\t\t// Example - insert `<paragraph>Abc</paragraph><paragraph>Xyz</paragraph>` at the end of `<paragraph>Foo^</paragraph>`:\n\t\t//\n\t\t// <paragraph>Foo</paragraph><paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo</paragraph>]<paragraph>Abc</paragraph><paragraph>Xyz</paragraph>[<paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo]Abc</paragraph><paragraph>Xyz</paragraph>[<paragraph>Bar</paragraph>\n\t\t//\n\t\t// Note, that if we are here then something must have been inserted, so `_affectedStart` and `_affectedEnd` have to be set.\n\t\tif ( this._affectedStart!.isEqual( mergePosLeft ) ) {\n\t\t\tthis._affectedStart!.detach();\n\t\t\tthis._affectedStart = LivePosition._createAt( mergePosLeft.nodeBefore!, 'end', 'toPrevious' );\n\t\t}\n\n\t\t// We need to update the references to the first and last nodes if they will be merged into the previous sibling node\n\t\t// because the reference would point to the removed node.\n\t\t//\n\t\t// <p>A^A</p> + <p>X</p>\n\t\t//\n\t\t// <p>A</p>^<p>A</p>\n\t\t// <p>A</p><p>X</p><p>A</p>\n\t\t// <p>AX</p><p>A</p>\n\t\t// <p>AXA</p>\n\t\tif ( this._firstNode === this._lastNode ) {\n\t\t\tthis._firstNode = mergePosLeft.nodeBefore;\n\t\t\tthis._lastNode = mergePosLeft.nodeBefore;\n\t\t}\n\n\t\tthis.writer.merge( mergePosLeft );\n\n\t\t// If only one element (the merged one) is in the \"affected range\", also move the affected range end appropriately.\n\t\t//\n\t\t// Example - insert `<paragraph>Abc</paragraph>` at the of `<paragraph>Foo^</paragraph>`:\n\t\t//\n\t\t// <paragraph>Foo</paragraph><paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo</paragraph>]<paragraph>Abc</paragraph>[<paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo]Abc</paragraph>[<paragraph>Bar</paragraph>   -->\n\t\t// <paragraph>Foo]Abc[</paragraph><paragraph>Bar</paragraph>\n\t\tif ( mergePosLeft.isEqual( this._affectedEnd! ) && this._firstNode === this._lastNode ) {\n\t\t\tthis._affectedEnd!.detach();\n\t\t\tthis._affectedEnd = LivePosition._createAt( mergePosLeft.nodeBefore!, 'end', 'toNext' );\n\t\t}\n\n\t\tthis.position = livePosition.toPosition();\n\t\tlivePosition.detach();\n\n\t\t// After merge elements that were marked by _insert() to be filtered might be gone so\n\t\t// we need to mark the new container.\n\t\tthis._filterAttributesOf.push( this.position.parent as any );\n\n\t\tmergePosLeft.detach();\n\t}\n\n\t/**\n\t * Merges the next sibling of the last node if it should be merged.\n\t *\n\t * After the content was inserted we may try to merge it with its siblings.\n\t * This should happen only if the selection was in those elements initially.\n\t */\n\tprivate _mergeOnRight(): void {\n\t\tconst node = this._lastNode;\n\n\t\tif ( !( node instanceof Element ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !this._canMergeRight( node ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst mergePosRight = LivePosition._createAfter( node );\n\t\tmergePosRight.stickiness = 'toNext';\n\n\t\t/* istanbul ignore if -- @preserve */\n\t\tif ( !this.position.isEqual( mergePosRight ) ) {\n\t\t\t// Algorithm's correctness check. We should never end up here but it's good to know that we did.\n\t\t\t// At this point the insertion position should be after the node we'll merge. If it isn't,\n\t\t\t// it should need to be secured as in the left merge case.\n\t\t\t/**\n\t\t\t * An internal error occurred when merging inserted content with its siblings.\n\t\t\t * The insertion position should equal the merge position.\n\t\t\t *\n\t\t\t * If you encountered this error, report it back to the CKEditor 5 team\n\t\t\t * with as many details as possible regarding the content being inserted and the insertion position.\n\t\t\t *\n\t\t\t * @error insertcontent-invalid-insertion-position\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'insertcontent-invalid-insertion-position', this );\n\t\t}\n\n\t\t// Move the position to the previous node, so it isn't moved to the graveyard on merge.\n\t\t// <p>x</p>[]<p>y</p> => <p>x[]</p><p>y</p>\n\t\tthis.position = Position._createAt( mergePosRight.nodeBefore!, 'end' );\n\n\t\t// Explanation of setting position stickiness to `'toPrevious'`:\n\t\t// OK:  <p>xx[]</p> + <p>yy</p> => <p>xx[]yy</p> (when sticks to previous)\n\t\t// NOK: <p>xx[]</p> + <p>yy</p> => <p>xxyy[]</p> (when sticks to next)\n\t\tconst livePosition = LivePosition.fromPosition( this.position, 'toPrevious' );\n\n\t\t// See comment in `_mergeOnLeft()` on moving `_affectedStart`.\n\t\tif ( this._affectedEnd!.isEqual( mergePosRight ) ) {\n\t\t\tthis._affectedEnd!.detach();\n\t\t\tthis._affectedEnd = LivePosition._createAt( mergePosRight.nodeBefore!, 'end', 'toNext' );\n\t\t}\n\n\t\t// We need to update the references to the first and last nodes if they will be merged into the previous sibling node\n\t\t// because the reference would point to the removed node.\n\t\t//\n\t\t// <p>A^A</p> + <p>X</p>\n\t\t//\n\t\t// <p>A</p>^<p>A</p>\n\t\t// <p>A</p><p>X</p><p>A</p>\n\t\t// <p>AX</p><p>A</p>\n\t\t// <p>AXA</p>\n\t\tif ( this._firstNode === this._lastNode ) {\n\t\t\tthis._firstNode = mergePosRight.nodeBefore;\n\t\t\tthis._lastNode = mergePosRight.nodeBefore;\n\t\t}\n\n\t\tthis.writer.merge( mergePosRight );\n\n\t\t// See comment in `_mergeOnLeft()` on moving `_affectedStart`.\n\t\tif ( mergePosRight.getShiftedBy( -1 ).isEqual( this._affectedStart! ) && this._firstNode === this._lastNode ) {\n\t\t\tthis._affectedStart!.detach();\n\t\t\tthis._affectedStart = LivePosition._createAt( mergePosRight.nodeBefore!, 0, 'toPrevious' );\n\t\t}\n\n\t\tthis.position = livePosition.toPosition();\n\t\tlivePosition.detach();\n\n\t\t// After merge elements that were marked by _insert() to be filtered might be gone so\n\t\t// we need to mark the new container.\n\t\tthis._filterAttributesOf.push( this.position.parent as any );\n\n\t\tmergePosRight.detach();\n\t}\n\n\t/**\n\t * Checks whether specified node can be merged with previous sibling element.\n\t *\n\t * @param node The node which could potentially be merged.\n\t */\n\tprivate _canMergeLeft( node: Element ): boolean {\n\t\tconst previousSibling = node.previousSibling;\n\n\t\treturn ( previousSibling instanceof Element ) &&\n\t\t\tthis.canMergeWith.has( previousSibling ) &&\n\t\t\tthis.model.schema.checkMerge( previousSibling, node );\n\t}\n\n\t/**\n\t * Checks whether specified node can be merged with next sibling element.\n\t *\n\t * @param node The node which could potentially be merged.\n\t */\n\tprivate _canMergeRight( node: Element ): boolean {\n\t\tconst nextSibling = node.nextSibling;\n\n\t\treturn ( nextSibling instanceof Element ) &&\n\t\t\tthis.canMergeWith.has( nextSibling ) &&\n\t\t\tthis.model.schema.checkMerge( node, nextSibling );\n\t}\n\n\t/**\n\t * Tries wrapping the node in a new paragraph and inserting it this way.\n\t *\n\t * @param node The node which needs to be autoparagraphed.\n\t */\n\tprivate _tryAutoparagraphing( node: Node ): void {\n\t\tconst paragraph = this.writer.createElement( 'paragraph' );\n\n\t\t// Do not autoparagraph if the paragraph won't be allowed there,\n\t\t// cause that would lead to an infinite loop. The paragraph would be rejected in\n\t\t// the next _handleNode() call and we'd be here again.\n\t\tif ( this._getAllowedIn( this.position.parent as any, paragraph ) && this.schema.checkChild( paragraph, node ) ) {\n\t\t\tparagraph._appendChild( node );\n\t\t\tthis._handleNode( paragraph );\n\t\t}\n\t}\n\n\t/**\n\t * Checks if a node can be inserted in the given position or it would be accepted if a paragraph would be inserted.\n\t * It also handles inserting the paragraph.\n\t *\n\t * @returns Whether an allowed position was found.\n\t * `false` is returned if the node isn't allowed at the current position or in auto paragraph, `true` if was.\n\t */\n\tprivate _checkAndAutoParagraphToAllowedPosition( node: Node ): boolean {\n\t\tif ( this.schema.checkChild( this.position.parent as any, node ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Do not auto paragraph if the paragraph won't be allowed there,\n\t\t// cause that would lead to an infinite loop. The paragraph would be rejected in\n\t\t// the next _handleNode() call and we'd be here again.\n\t\tif ( !this.schema.checkChild( this.position.parent as any, 'paragraph' ) || !this.schema.checkChild( 'paragraph', node ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Insert nodes collected in temporary DocumentFragment if the position parent needs change to process further nodes.\n\t\tthis._insertPartialFragment();\n\n\t\t// Insert a paragraph and move insertion position to it.\n\t\tconst paragraph = this.writer.createElement( 'paragraph' );\n\n\t\tthis.writer.insert( paragraph, this.position );\n\t\tthis._setAffectedBoundaries( this.position );\n\n\t\tthis._lastAutoParagraph = paragraph;\n\t\tthis.position = this.writer.createPositionAt( paragraph, 0 );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * @returns Whether an allowed position was found.\n\t * `false` is returned if the node isn't allowed at any position up in the tree, `true` if was.\n\t */\n\tprivate _checkAndSplitToAllowedPosition( node: Node ): boolean {\n\t\tconst allowedIn = this._getAllowedIn( this.position.parent as any, node );\n\n\t\tif ( !allowedIn ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Insert nodes collected in temporary DocumentFragment if the position parent needs change to process further nodes.\n\t\tif ( allowedIn != this.position.parent ) {\n\t\t\tthis._insertPartialFragment();\n\t\t}\n\n\t\twhile ( allowedIn != this.position.parent ) {\n\t\t\tif ( this.position.isAtStart ) {\n\t\t\t\t// If insertion position is at the beginning of the parent, move it out instead of splitting.\n\t\t\t\t// <p>^Foo</p> -> ^<p>Foo</p>\n\t\t\t\tconst parent: Element = this.position.parent as Element;\n\n\t\t\t\tthis.position = this.writer.createPositionBefore( parent );\n\n\t\t\t\t// Special case – parent is empty (<p>^</p>).\n\t\t\t\t//\n\t\t\t\t// 1. parent.isEmpty\n\t\t\t\t// We can remove the element after moving insertion position out of it.\n\t\t\t\t//\n\t\t\t\t// 2. parent.parent === allowedIn\n\t\t\t\t// However parent should remain in place when allowed element is above limit element in document tree.\n\t\t\t\t// For example there shouldn't be allowed to remove empty paragraph from tableCell, when is pasted\n\t\t\t\t// content allowed in $root.\n\t\t\t\tif ( parent.isEmpty && parent.parent === allowedIn ) {\n\t\t\t\t\tthis.writer.remove( parent );\n\t\t\t\t}\n\t\t\t} else if ( this.position.isAtEnd ) {\n\t\t\t\t// If insertion position is at the end of the parent, move it out instead of splitting.\n\t\t\t\t// <p>Foo^</p> -> <p>Foo</p>^\n\t\t\t\tthis.position = this.writer.createPositionAfter( this.position.parent as Element );\n\t\t\t} else {\n\t\t\t\tconst tempPos = this.writer.createPositionAfter( this.position.parent as Element );\n\n\t\t\t\tthis._setAffectedBoundaries( this.position );\n\t\t\t\tthis.writer.split( this.position );\n\n\t\t\t\tthis.position = tempPos;\n\n\t\t\t\tthis.canMergeWith.add( this.position.nodeAfter );\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Gets the element in which the given node is allowed. It checks the passed element and all its ancestors.\n\t *\n\t * @param contextElement The element in which context the node should be checked.\n\t * @param childNode The node to check.\n\t */\n\tprivate _getAllowedIn( contextElement: Element, childNode: Node ): Element | null {\n\t\tif ( this.schema.checkChild( contextElement, childNode ) ) {\n\t\t\treturn contextElement;\n\t\t}\n\n\t\t// If the child wasn't allowed in the context element and the element is a limit there's no point in\n\t\t// checking any further towards the root. This is it: the limit is unsplittable and there's nothing\n\t\t// we can do about it. Without this check, the algorithm will analyze parent of the limit and may create\n\t\t// an illusion of the child being allowed. There's no way to insert it down there, though. It results in\n\t\t// infinite loops.\n\t\tif ( this.schema.isLimit( contextElement ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this._getAllowedIn( contextElement.parent as any, childNode );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/findoptimalinsertionrange\n */\n\nimport { first } from '@ckeditor/ckeditor5-utils';\n\nimport type DocumentSelection from '../documentselection';\nimport type Model from '../model';\nimport type Range from '../range';\nimport type Selection from '../selection';\n\n/**\n * Returns a model range which is optimal (in terms of UX) for inserting a widget block.\n *\n * For instance, if a selection is in the middle of a paragraph, the collapsed range before this paragraph\n * will be returned so that it is not split. If the selection is at the end of a paragraph,\n * the collapsed range after this paragraph will be returned.\n *\n * Note: If the selection is placed in an empty block, the range in that block will be returned. If that range\n * is then passed to {@link module:engine/model/model~Model#insertContent}, the block will be fully replaced\n * by the inserted widget block.\n *\n * **Note:** Use {@link module:widget/utils#findOptimalInsertionRange} instead of this function outside engine.\n * This function is only exposed to be used by {@link module:widget/utils#findOptimalInsertionRange findOptimalInsertionRange()}\n * in the `widget` package and inside the `engine` package.\n *\n * @param selection The selection based on which the insertion position should be calculated.\n * @param model Model instance.\n * @param place The place where to look for optimal insertion range.\n * The default `auto` value will determine itself the best position for insertion.\n * The `before` value will try to find a position before selection.\n * The `after` value will try to find a position after selection.\n * @returns The optimal range.\n */\nexport function findOptimalInsertionRange(\n\tselection: Selection | DocumentSelection,\n\tmodel: Model,\n\tplace: 'auto' | 'before' | 'after' = 'auto'\n): Range {\n\tconst selectedElement = selection.getSelectedElement();\n\n\tif ( selectedElement && model.schema.isObject( selectedElement ) && !model.schema.isInline( selectedElement ) ) {\n\t\tif ( place == 'before' || place == 'after' ) {\n\t\t\treturn model.createRange( model.createPositionAt( selectedElement, place ) );\n\t\t}\n\n\t\treturn model.createRangeOn( selectedElement );\n\t}\n\n\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t// There are no block elements within ancestors (in the current limit element).\n\tif ( !firstBlock ) {\n\t\treturn model.createRange( selection.focus! );\n\t}\n\n\t// If inserting into an empty block – return position in that block. It will get\n\t// replaced with the image by insertContent(). #42.\n\tif ( firstBlock.isEmpty ) {\n\t\treturn model.createRange( model.createPositionAt( firstBlock, 0 ) );\n\t}\n\n\tconst positionAfter = model.createPositionAfter( firstBlock );\n\n\t// If selection is at the end of the block - return position after the block.\n\tif ( selection.focus!.isTouching( positionAfter ) ) {\n\t\treturn model.createRange( positionAfter );\n\t}\n\n\t// Otherwise, return position before the block.\n\treturn model.createRange( model.createPositionBefore( firstBlock ) );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/insertobject\n */\n\nimport { findOptimalInsertionRange } from './findoptimalinsertionrange';\nimport type DocumentSelection from '../documentselection';\nimport type Selection from '../selection';\n\nimport type Element from '../element';\nimport type Model from '../model';\nimport type Range from '../range';\nimport type Writer from '../writer';\n\nimport { CKEditorError, first } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Inserts an {@glink framework/deep-dive/schema#object-elements object element} at a specific position in the editor content.\n *\n * **Note:** Use {@link module:engine/model/model~Model#insertObject} instead of this function.\n * This function is only exposed to be reusable in algorithms which change the {@link module:engine/model/model~Model#insertObject}\n * method's behavior.\n *\n * **Note**: For more documentation and examples, see {@link module:engine/model/model~Model#insertObject}.\n *\n * @param model The model in context of which the insertion should be performed.\n * @param object An object to be inserted into the model document.\n * @param selectable A selectable where the content should be inserted. If not specified, the current\n * {@link module:engine/model/document~Document#selection document selection} will be used instead.\n * @param placeOrOffset Specifies the exact place or offset for the insertion to take place, relative to `selectable`.\n * @param options Additional options.\n * @param options.findOptimalPosition An option that, when set, adjusts the insertion position (relative to\n * `selectable` and `placeOrOffset`) so that the content of `selectable` is not split upon insertion (a.k.a. non-destructive insertion).\n * * When `'auto'`, the algorithm will decide whether to insert the object before or after `selectable` to avoid content splitting.\n * * When `'before'`, the closest position before `selectable` will be used that will not result in content splitting.\n * * When `'after'`, the closest position after `selectable` will be used that will not result in content splitting.\n *\n * Note that this option works only for block objects. Inline objects are inserted into text and do not split blocks.\n * @param options.setSelection An option that, when set, moves the\n * {@link module:engine/model/document~Document#selection document selection} after inserting the object.\n * * When `'on'`, the document selection will be set on the inserted object.\n * * When `'after'`, the document selection will move to the closest text node after the inserted object. If there is no\n * such text node, a paragraph will be created and the document selection will be moved inside it.\n * @returns A range which contains all the performed changes. This is a range that, if removed,\n * would return the model to the state before the insertion. If no changes were preformed by `insertObject()`, returns a range collapsed\n * at the insertion position.\n */\nexport default function insertObject(\n\tmodel: Model,\n\tobject: Element,\n\tselectable?: Selection | DocumentSelection | null,\n\toptions: {\n\t\tfindOptimalPosition?: 'auto' | 'before' | 'after';\n\t\tsetSelection?: 'on' | 'after';\n\t} = {}\n): Range {\n\tif ( !model.schema.isObject( object ) ) {\n\t\t/**\n\t\t * Tried to insert an element with {@link module:engine/model/utils/insertobject insertObject()} function\n\t\t * that is not defined as an object in schema.\n\t\t * See {@link module:engine/model/schema~SchemaItemDefinition#isObject `SchemaItemDefinition`}.\n\t\t * If you want to insert content that is not an object you might want to use\n\t\t * {@link module:engine/model/utils/insertcontent insertContent()} function.\n\t\t * @error insertobject-element-not-an-object\n\t\t */\n\t\tthrow new CKEditorError( 'insertobject-element-not-an-object', model, { object } );\n\t}\n\n\t// Normalize selectable to a selection instance.\n\tconst originalSelection: Selection | DocumentSelection = selectable ? selectable : model.document.selection;\n\n\t// Adjust the insertion selection.\n\tlet insertionSelection = originalSelection;\n\n\tif ( options.findOptimalPosition && model.schema.isBlock( object ) ) {\n\t\tinsertionSelection = model.createSelection( findOptimalInsertionRange( originalSelection, model, options.findOptimalPosition ) );\n\t}\n\n\t// Collect attributes to be copied on the inserted object.\n\tconst firstSelectedBlock = first( originalSelection.getSelectedBlocks() );\n\tconst attributesToCopy = {};\n\n\tif ( firstSelectedBlock ) {\n\t\tObject.assign( attributesToCopy, model.schema.getAttributesWithProperty( firstSelectedBlock, 'copyOnReplace', true ) );\n\t}\n\n\treturn model.change( writer => {\n\t\t// Remove the selected content to find out what the parent of the inserted object would be.\n\t\t// It would be removed inside model.insertContent() anyway.\n\t\tif ( !insertionSelection.isCollapsed ) {\n\t\t\tmodel.deleteContent( insertionSelection, { doNotAutoparagraph: true } );\n\t\t}\n\n\t\tlet elementToInsert = object;\n\t\tconst insertionPositionParent = insertionSelection.anchor!.parent;\n\n\t\t// Autoparagraphing of an inline objects.\n\t\tif (\n\t\t\t!model.schema.checkChild( insertionPositionParent as any, object ) &&\n\t\t\tmodel.schema.checkChild( insertionPositionParent as any, 'paragraph' ) &&\n\t\t\tmodel.schema.checkChild( 'paragraph', object )\n\t\t) {\n\t\t\telementToInsert = writer.createElement( 'paragraph' );\n\n\t\t\twriter.insert( object, elementToInsert );\n\t\t}\n\n\t\t// Apply attributes that are allowed on the inserted object (or paragraph if autoparagraphed).\n\t\tmodel.schema.setAllowedAttributes( elementToInsert, attributesToCopy, writer );\n\n\t\t// Insert the prepared content at the optionally adjusted selection.\n\t\tconst affectedRange = model.insertContent( elementToInsert, insertionSelection );\n\n\t\t// Nothing got inserted.\n\t\tif ( affectedRange.isCollapsed ) {\n\t\t\treturn affectedRange;\n\t\t}\n\n\t\tif ( options.setSelection ) {\n\t\t\tupdateSelection( writer, object, options.setSelection, attributesToCopy );\n\t\t}\n\n\t\treturn affectedRange;\n\t} );\n}\n\n/**\n * Updates document selection based on given `place` parameter in relation to `contextElement` element.\n *\n * @param writer An instance of the model writer.\n * @param contextElement An element to set the attributes on.\n * @param place The place where selection should be set in relation to the `contextElement` element.\n * Value `on` will set selection on the passed `contextElement`. Value `after` will set selection after `contextElement`.\n * @param attributes Attributes keys and values to set on a paragraph that this function can create when\n * `place` parameter is equal to `after` but there is no element with `$text` node to set selection in.\n */\nfunction updateSelection(\n\twriter: Writer,\n\tcontextElement: Element,\n\tplace: 'after' | 'on',\n\tparagraphAttributes: Record<string, unknown>\n) {\n\tconst model = writer.model;\n\n\tif ( place == 'on' ) {\n\t\twriter.setSelection( contextElement, 'on' );\n\n\t\treturn;\n\t}\n\n\tif ( place != 'after' ) {\n\t\t/**\n\t\t * The unsupported `options.setSelection` parameter was passed\n\t\t * to the {@link module:engine/model/utils/insertobject insertObject()} function.\n\t\t * Check the {@link module:engine/model/utils/insertobject insertObject()} API documentation for allowed\n\t\t * `options.setSelection` parameter values.\n\t\t *\n\t\t * @error insertobject-invalid-place-parameter-value\n\t\t */\n\t\tthrow new CKEditorError( 'insertobject-invalid-place-parameter-value', model );\n\t}\n\n\tlet nextElement = contextElement.nextSibling;\n\n\tif ( model.schema.isInline( contextElement ) ) {\n\t\twriter.setSelection( contextElement, 'after' );\n\n\t\treturn;\n\t}\n\n\t// Check whether an element next to the inserted element is defined and can contain a text.\n\tconst canSetSelection = nextElement && model.schema.checkChild( nextElement, '$text' );\n\n\t// If the element is missing, but a paragraph could be inserted next to the element, let's add it.\n\tif ( !canSetSelection && model.schema.checkChild( contextElement.parent as any, 'paragraph' ) ) {\n\t\tnextElement = writer.createElement( 'paragraph' );\n\n\t\tmodel.schema.setAllowedAttributes( nextElement, paragraphAttributes, writer );\n\t\tmodel.insertContent( nextElement, writer.createPositionAfter( contextElement ) );\n\t}\n\n\t// Put the selection inside the element, at the beginning.\n\tif ( nextElement ) {\n\t\twriter.setSelection( nextElement, 0 );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/utils/modifyselection\n */\n\nimport DocumentSelection from '../documentselection';\nimport Position from '../position';\nimport Range from '../range';\nimport TreeWalker, { type TreeWalkerValue } from '../treewalker';\n\nimport type Model from '../model';\nimport type Schema from '../schema';\nimport type Selection from '../selection';\nimport type Text from '../text';\nimport type Node from '../node';\n\nimport { isInsideSurrogatePair, isInsideCombinedSymbol, isInsideEmojiSequence } from '@ckeditor/ckeditor5-utils';\n\nconst wordBoundaryCharacters = ' ,.?!:;\"-()';\n\n/**\n * Modifies the selection. Currently, the supported modifications are:\n *\n * * Extending. The selection focus is moved in the specified `options.direction` with a step specified in `options.unit`.\n * Possible values for `unit` are:\n *  * `'character'` (default) - moves selection by one user-perceived character. In most cases this means moving by one\n *  character in `String` sense. However, unicode also defines \"combing marks\". These are special symbols, that combines\n *  with a symbol before it (\"base character\") to create one user-perceived character. For example, `q̣̇` is a normal\n *  letter `q` with two \"combining marks\": upper dot (`Ux0307`) and lower dot (`Ux0323`). For most actions, i.e. extending\n *  selection by one position, it is correct to include both \"base character\" and all of it's \"combining marks\". That is\n *  why `'character'` value is most natural and common method of modifying selection.\n *  * `'codePoint'` - moves selection by one unicode code point. In contrary to, `'character'` unit, this will insert\n *  selection between \"base character\" and \"combining mark\", because \"combining marks\" have their own unicode code points.\n *  However, for technical reasons, unicode code points with values above `UxFFFF` are represented in native `String` by\n *  two characters, called \"surrogate pairs\". Halves of \"surrogate pairs\" have a meaning only when placed next to each other.\n *  For example `𨭎` is represented in `String` by `\\uD862\\uDF4E`. Both `\\uD862` and `\\uDF4E` do not have any meaning\n *  outside the pair (are rendered as ? when alone). Position between them would be incorrect. In this case, selection\n *  extension will include whole \"surrogate pair\".\n *  * `'word'` - moves selection by a whole word.\n *\n * **Note:** if you extend a forward selection in a backward direction you will in fact shrink it.\n *\n * **Note:** Use {@link module:engine/model/model~Model#modifySelection} instead of this function.\n * This function is only exposed to be reusable in algorithms\n * which change the {@link module:engine/model/model~Model#modifySelection}\n * method's behavior.\n *\n * @param model The model in context of which the selection modification should be performed.\n * @param selection The selection to modify.\n * @param options.direction The direction in which the selection should be modified. Default 'forward'.\n * @param options.unit The unit by which selection should be modified. Default 'character'.\n * @param options.treatEmojiAsSingleUnit Whether multi-characer emoji sequences should be handled as single unit.\n */\nexport default function modifySelection(\n\tmodel: Model,\n\tselection: Selection | DocumentSelection,\n\toptions: {\n\t\tdirection?: 'forward' | 'backward';\n\t\tunit?: 'character' | 'codePoint' | 'word';\n\t\ttreatEmojiAsSingleUnit?: boolean;\n\t} = {}\n): void {\n\tconst schema = model.schema;\n\tconst isForward = options.direction != 'backward';\n\tconst unit = options.unit ? options.unit : 'character';\n\tconst treatEmojiAsSingleUnit = !!options.treatEmojiAsSingleUnit;\n\n\tconst focus = selection.focus!;\n\n\tconst walker = new TreeWalker( {\n\t\tboundaries: getSearchRange( focus, isForward ),\n\t\tsingleCharacters: true,\n\t\tdirection: isForward ? 'forward' : 'backward'\n\t} );\n\n\tconst data = { walker, schema, isForward, unit, treatEmojiAsSingleUnit };\n\n\tlet next;\n\n\twhile ( ( next = walker.next() ) ) {\n\t\tif ( next.done ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = tryExtendingTo( data, next.value );\n\n\t\tif ( position ) {\n\t\t\tif ( selection instanceof DocumentSelection ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\twriter.setSelectionFocus( position );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tselection.setFocus( position );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\t}\n}\n\n/**\n * Checks whether the selection can be extended to the the walker's next value (next position).\n */\nfunction tryExtendingTo(\n\tdata: {\n\t\twalker: TreeWalker;\n\t\tschema: Schema;\n\t\tisForward: boolean;\n\t\tunit: 'character' | 'codePoint' | 'word';\n\t\ttreatEmojiAsSingleUnit: boolean;\n\t},\n\tvalue: TreeWalkerValue\n): Position | undefined {\n\tconst { isForward, walker, unit, schema, treatEmojiAsSingleUnit } = data;\n\tconst { type, item, nextPosition } = value;\n\n\t// If found text, we can certainly put the focus in it. Let's just find a correct position\n\t// based on the unit.\n\tif ( type == 'text' ) {\n\t\tif ( data.unit === 'word' ) {\n\t\t\treturn getCorrectWordBreakPosition( walker, isForward );\n\t\t}\n\n\t\treturn getCorrectPosition( walker, unit, treatEmojiAsSingleUnit );\n\t}\n\n\t// Entering an element.\n\tif ( type == ( isForward ? 'elementStart' : 'elementEnd' ) ) {\n\t\t// If it's a selectable, we can select it now.\n\t\tif ( schema.isSelectable( item ) ) {\n\t\t\treturn Position._createAt( item, isForward ? 'after' : 'before' );\n\t\t}\n\n\t\t// If text allowed on this position, extend to this place.\n\t\tif ( schema.checkChild( nextPosition, '$text' ) ) {\n\t\t\treturn nextPosition;\n\t\t}\n\t}\n\t// Leaving an element.\n\telse {\n\t\t// If leaving a limit element, stop.\n\t\tif ( schema.isLimit( item ) ) {\n\t\t\t// NOTE: Fast-forward the walker until the end.\n\t\t\twalker.skip( () => true );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// If text allowed on this position, extend to this place.\n\t\tif ( schema.checkChild( nextPosition, '$text' ) ) {\n\t\t\treturn nextPosition;\n\t\t}\n\t}\n}\n\n/**\n * Finds a correct position by walking in a text node and checking whether selection can be extended to given position\n * or should be extended further.\n */\nfunction getCorrectPosition(\n\twalker: TreeWalker,\n\tunit: 'character' | 'codePoint' | 'word',\n\ttreatEmojiAsSingleUnit: boolean\n): Position {\n\tconst textNode = walker.position.textNode;\n\n\tif ( textNode ) {\n\t\tconst data = textNode.data;\n\t\tlet offset = walker.position.offset - textNode.startOffset!;\n\n\t\twhile (\n\t\t\tisInsideSurrogatePair( data, offset ) ||\n\t\t\t( unit == 'character' && isInsideCombinedSymbol( data, offset ) ) ||\n\t\t\t( treatEmojiAsSingleUnit && isInsideEmojiSequence( data, offset ) )\n\t\t) {\n\t\t\twalker.next();\n\n\t\t\toffset = walker.position.offset - textNode.startOffset!;\n\t\t}\n\t}\n\n\treturn walker.position;\n}\n\n/**\n * Finds a correct position of a word break by walking in a text node and checking whether selection can be extended to given position\n * or should be extended further.\n */\nfunction getCorrectWordBreakPosition( walker: TreeWalker, isForward: boolean ): Position {\n\tlet textNode: Node | null = walker.position.textNode;\n\n\tif ( !textNode ) {\n\t\ttextNode = isForward ? walker.position.nodeAfter : walker.position.nodeBefore;\n\t}\n\n\twhile ( textNode && textNode.is( '$text' ) ) {\n\t\tconst offset = walker.position.offset - textNode.startOffset!;\n\n\t\t// Check of adjacent text nodes with different attributes (like BOLD).\n\t\t// Example          : 'foofoo []bar<$text bold=\"true\">bar</$text> bazbaz'\n\t\t// should expand to : 'foofoo [bar<$text bold=\"true\">bar</$text>] bazbaz'.\n\t\tif ( isAtNodeBoundary( textNode, offset, isForward ) ) {\n\t\t\ttextNode = isForward ? walker.position.nodeAfter : walker.position.nodeBefore;\n\t\t}\n\t\t// Check if this is a word boundary.\n\t\telse if ( isAtWordBoundary( textNode.data, offset, isForward ) ) {\n\t\t\tbreak;\n\t\t}\n\t\t// Maybe one more character.\n\t\telse {\n\t\t\twalker.next();\n\t\t}\n\t}\n\n\treturn walker.position;\n}\n\nfunction getSearchRange( start: Position, isForward: boolean ) {\n\tconst root = start.root;\n\tconst searchEnd = Position._createAt( root, isForward ? 'end' : 0 );\n\n\tif ( isForward ) {\n\t\treturn new Range( start, searchEnd );\n\t} else {\n\t\treturn new Range( searchEnd, start );\n\t}\n}\n\n/**\n * Checks if selection is on word boundary.\n */\nfunction isAtWordBoundary( data: string, offset: number, isForward: boolean ) {\n\t// The offset to check depends on direction.\n\tconst offsetToCheck = offset + ( isForward ? 0 : -1 );\n\n\treturn wordBoundaryCharacters.includes( data.charAt( offsetToCheck ) );\n}\n\n/**\n * Checks if selection is on node boundary.\n */\nfunction isAtNodeBoundary( textNode: Text, offset: number, isForward: boolean ) {\n\treturn offset === ( isForward ? textNode.offsetSize : 0 );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/model/model\n */\n\nimport Batch, { type BatchType } from './batch';\nimport Document from './document';\nimport MarkerCollection from './markercollection';\nimport ModelPosition, { type PositionOffset, type PositionStickiness } from './position';\nimport ModelRange from './range';\nimport ModelSelection, { type PlaceOrOffset, type Selectable } from './selection';\nimport OperationFactory from './operation/operationfactory';\nimport DocumentSelection from './documentselection';\nimport Schema from './schema';\nimport Writer from './writer';\nimport Node from './node';\n\nimport { autoParagraphEmptyRoots } from './utils/autoparagraphing';\nimport { injectSelectionPostFixer } from './utils/selection-post-fixer';\nimport deleteContent from './utils/deletecontent';\nimport getSelectedContent from './utils/getselectedcontent';\nimport insertContent from './utils/insertcontent';\nimport insertObject from './utils/insertobject';\nimport modifySelection from './utils/modifyselection';\n\nimport type ModelDocumentFragment from './documentfragment';\nimport type Item from './item';\nimport type ModelElement from './element';\nimport type Operation from './operation/operation';\n\nimport {\n\tCKEditorError,\n\tObservableMixin,\n\ttype DecoratedMethodEvent\n} from '@ckeditor/ckeditor5-utils';\n\n// @if CK_DEBUG_ENGINE // const { dumpTrees, initDocumentDumping } = require( '../dev-utils/utils' );\n// @if CK_DEBUG_ENGINE // const { OperationReplayer } = require( '../dev-utils/operationreplayer' ).default;\n\n/**\n * Editor's data model. Read about the model in the\n * {@glink framework/architecture/editing-engine engine architecture} guide.\n */\nexport default class Model extends ObservableMixin() {\n\t/**\n\t * Model's marker collection.\n\t */\n\tpublic readonly markers: MarkerCollection;\n\n\t/**\n\t * Model's document.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * Model's schema.\n\t */\n\tpublic readonly schema: Schema;\n\n\t/**\n\t * All callbacks added by {@link module:engine/model/model~Model#change} or\n\t * {@link module:engine/model/model~Model#enqueueChange} methods waiting to be executed.\n\t */\n\tprivate readonly _pendingChanges: Array<{ batch: Batch; callback: ( writer: Writer ) => any }>;\n\n\t/**\n\t * The last created and currently used writer instance.\n\t */\n\tprivate _currentWriter: Writer | null;\n\n\t// @if CK_DEBUG_ENGINE // private _operationLogs: Array<string>;\n\t// @if CK_DEBUG_ENGINE // private _appliedOperations: Array<Operation>;\n\n\tconstructor() {\n\t\tsuper();\n\n\t\tthis.markers = new MarkerCollection();\n\t\tthis.document = new Document( this );\n\t\tthis.schema = new Schema();\n\n\t\tthis._pendingChanges = [];\n\t\tthis._currentWriter = null;\n\n\t\t( [ 'deleteContent', 'modifySelection', 'getSelectedContent', 'applyOperation' ] as const )\n\t\t\t.forEach( methodName => this.decorate( methodName ) );\n\n\t\t// Adding operation validation with `highest` priority, so it is called before any other feature would like\n\t\t// to do anything with the operation. If the operation has incorrect parameters it should throw on the earliest occasion.\n\t\tthis.on<ModelApplyOperationEvent>( 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\toperation._validate();\n\t\t}, { priority: 'highest' } );\n\n\t\t// Register some default abstract entities.\n\t\tthis.schema.register( '$root', {\n\t\t\tisLimit: true\n\t\t} );\n\n\t\tthis.schema.register( '$container', {\n\t\t\tallowIn: [ '$root', '$container' ]\n\t\t} );\n\n\t\tthis.schema.register( '$block', {\n\t\t\tallowIn: [ '$root', '$container' ],\n\t\t\tisBlock: true\n\t\t} );\n\n\t\tthis.schema.register( '$blockObject', {\n\t\t\tallowWhere: '$block',\n\t\t\tisBlock: true,\n\t\t\tisObject: true\n\t\t} );\n\n\t\tthis.schema.register( '$inlineObject', {\n\t\t\tallowWhere: '$text',\n\t\t\tallowAttributesOf: '$text',\n\t\t\tisInline: true,\n\t\t\tisObject: true\n\t\t} );\n\n\t\tthis.schema.register( '$text', {\n\t\t\tallowIn: '$block',\n\t\t\tisInline: true,\n\t\t\tisContent: true\n\t\t} );\n\n\t\tthis.schema.register( '$clipboardHolder', {\n\t\t\tallowContentOf: '$root',\n\t\t\tallowChildren: '$text',\n\t\t\tisLimit: true\n\t\t} );\n\n\t\tthis.schema.register( '$documentFragment', {\n\t\t\tallowContentOf: '$root',\n\t\t\tallowChildren: '$text',\n\t\t\tisLimit: true\n\t\t} );\n\n\t\t// An element needed by the `upcastElementToMarker` converter.\n\t\t// This element temporarily represents a marker boundary during the conversion process and is removed\n\t\t// at the end of the conversion. `UpcastDispatcher` or at least `Conversion` class looks like a\n\t\t// better place for this registration but both know nothing about `Schema`.\n\t\tthis.schema.register( '$marker' );\n\t\tthis.schema.addChildCheck( ( context, childDefinition ) => {\n\t\t\tif ( childDefinition.name === '$marker' ) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t} );\n\n\t\tinjectSelectionPostFixer( this );\n\n\t\t// Post-fixer which takes care of adding empty paragraph elements to the empty roots.\n\t\tthis.document.registerPostFixer( autoParagraphEmptyRoots );\n\n\t\t// The base implementation for \"decorated\" method with remapped arguments.\n\t\tthis.on<ModelInsertContentEvent>( 'insertContent', ( evt, [ content, selectable ] ) => {\n\t\t\tevt.return = insertContent( this, content, selectable );\n\t\t} );\n\n\t\t// The base implementation for \"decorated\" method with remapped arguments.\n\t\tthis.on<ModelInsertObjectEvent>( 'insertObject', ( evt, [ element, selection, options ] ) => {\n\t\t\tevt.return = insertObject( this, element, selection, options );\n\t\t} );\n\n\t\t// @if CK_DEBUG_ENGINE // initDocumentDumping( this.document );\n\t\t// @if CK_DEBUG_ENGINE // this.on( 'applyOperation', () => {\n\t\t// @if CK_DEBUG_ENGINE // \tdumpTrees( this.document, this.document.version );\n\t\t// @if CK_DEBUG_ENGINE // }, { priority: 'lowest' } );\n\n\t\t// @if CK_DEBUG_ENGINE // this._operationLogs = [];\n\t\t// @if CK_DEBUG_ENGINE // this._appliedOperations = [];\n\t}\n\n\t/**\n\t * The `change()` method is the primary way of changing the model. You should use it to modify all document nodes\n\t * (including detached nodes – i.e. nodes not added to the {@link module:engine/model/model~Model#document model document}),\n\t * the {@link module:engine/model/document~Document#selection document's selection}, and\n\t * {@link module:engine/model/model~Model#markers model markers}.\n\t *\n\t * ```ts\n\t * model.change( writer => {\n\t * \twriter.insertText( 'foo', paragraph, 'end' );\n\t * } );\n\t * ```\n\t *\n\t * All changes inside the change block use the same {@link module:engine/model/batch~Batch} so they are combined\n\t * into a single undo step.\n\t *\n\t * ```ts\n\t * model.change( writer => {\n\t * \twriter.insertText( 'foo', paragraph, 'end' ); // foo.\n\t *\n\t * \tmodel.change( writer => {\n\t * \t\twriter.insertText( 'bar', paragraph, 'end' ); // foobar.\n\t * \t} );\n\t *\n\t * \twriter.insertText( 'bom', paragraph, 'end' ); // foobarbom.\n\t * } );\n\t * ```\n\t *\n\t * The callback of the `change()` block is executed synchronously.\n\t *\n\t * You can also return a value from the change block.\n\t *\n\t * ```ts\n\t * const img = model.change( writer => {\n\t * \treturn writer.createElement( 'img' );\n\t * } );\n\t * ```\n\t *\n\t * @see #enqueueChange\n\t * @typeParam TReturn The return type of the provided callback.\n\t * @param callback Callback function which may modify the model.\n\t */\n\tpublic change<TReturn>( callback: ( writer: Writer ) => TReturn ): TReturn {\n\t\ttry {\n\t\t\tif ( this._pendingChanges.length === 0 ) {\n\t\t\t\t// If this is the outermost block, create a new batch and start `_runPendingChanges` execution flow.\n\t\t\t\tthis._pendingChanges.push( { batch: new Batch(), callback } );\n\n\t\t\t\treturn this._runPendingChanges()[ 0 ];\n\t\t\t} else {\n\t\t\t\t// If this is not the outermost block, just execute the callback.\n\t\t\t\treturn callback( this._currentWriter! );\n\t\t\t}\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next -- @preserve */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\t/**\n\t * The `enqueueChange()` method performs similar task as the {@link #change `change()` method}, with two major differences.\n\t *\n\t * First, the callback of `enqueueChange()` is executed when all other enqueued changes are done. It might be executed\n\t * immediately if it is not nested in any other change block, but if it is nested in another (enqueue)change block,\n\t * it will be delayed and executed after the outermost block.\n\t *\n\t * ```ts\n\t * model.change( writer => {\n\t * \tconsole.log( 1 );\n\t *\n\t * \tmodel.enqueueChange( writer => {\n\t * \t\tconsole.log( 2 );\n\t * \t} );\n\t *\n\t * \tconsole.log( 3 );\n\t * } ); // Will log: 1, 3, 2.\n\t * ```\n\t *\n\t * In addition to that, the changes enqueued with `enqueueChange()` will be converted separately from the changes\n\t * done in the outer `change()` block.\n\t *\n\t * By default, a new batch with the default {@link module:engine/model/batch~Batch#constructor batch type} is created.\n\t * To define the {@link module:engine/model/batch~Batch} into which you want to add your changes,\n\t * use {@link #enqueueChange:CUSTOM_BATCH `enqueueChange( batchOrType, callback )`}.\n\t *\n\t * @label DEFAULT_BATCH\n\t * @param callback Callback function which may modify the model.\n\t */\n\tpublic enqueueChange(\n\t\tcallback: ( writer: Writer ) => unknown\n\t): void;\n\n\t/**\n\t * The `enqueueChange()` method performs similar task as the {@link #change `change()` method}, with two major differences.\n\t *\n\t * First, the callback of `enqueueChange()` is executed when all other enqueued changes are done. It might be executed\n\t * immediately if it is not nested in any other change block, but if it is nested in another (enqueue)change block,\n\t * it will be delayed and executed after the outermost block.\n\t *\n\t * ```ts\n\t * model.change( new Batch(), writer => {\n\t * \tconsole.log( 1 );\n\t *\n\t * \tmodel.enqueueChange( new Batch(), writer => {\n\t * \t\tconsole.log( 2 );\n\t * \t} );\n\t *\n\t * \tconsole.log( 3 );\n\t * } ); // Will log: 1, 3, 2.\n\t * ```\n\t *\n\t * In addition to that, the changes enqueued with `enqueueChange()` will be converted separately from the changes\n\t * done in the outer `change()` block.\n\t *\n\t * Second, it lets you define the {@link module:engine/model/batch~Batch} into which you want to add your changes.\n\t * If you want to use default {@link module:engine/model/batch~Batch#constructor batch type}, use\n\t * {@link #enqueueChange:DEFAULT_BATCH `enqueueChange( callback )`}.\n\t *\n\t * ```ts\n\t * model.enqueueChange( { isUndoable: false }, writer => {\n\t * \twriter.insertText( 'foo', paragraph, 'end' );\n\t * } );\n\t * ```\n\t *\n\t * When using the `enqueueChange()` block you can also add some changes to the batch you used before.\n\t *\n\t * ```ts\n\t * model.enqueueChange( batch, writer => {\n\t * \twriter.insertText( 'foo', paragraph, 'end' );\n\t * } );\n\t * ```\n\t *\n\t * In order to make a nested `enqueueChange()` create a single undo step together with the changes done in the outer `change()`\n\t * block, you can obtain the batch instance from the  {@link module:engine/model/writer~Writer#batch writer} of the outer block.\n\t *\n\t * @label CUSTOM_BATCH\n\t * @param batchOrType A batch or a {@link module:engine/model/batch~Batch#constructor batch type} that should be used in the callback.\n\t * If not defined, a new batch with the default type will be created.\n\t * @param callback Callback function which may modify the model.\n\t */\n\tpublic enqueueChange(\n\t\tbatchOrType: Batch | BatchType | undefined,\n\t\tcallback: ( writer: Writer ) => unknown\n\t): void;\n\n\tpublic enqueueChange(\n\t\tbatchOrType: Batch | BatchType | ( ( writer: Writer ) => unknown ) | undefined,\n\t\tcallback?: ( writer: Writer ) => unknown\n\t): void {\n\t\ttry {\n\t\t\tif ( !batchOrType ) {\n\t\t\t\tbatchOrType = new Batch();\n\t\t\t} else if ( typeof batchOrType === 'function' ) {\n\t\t\t\tcallback = batchOrType;\n\t\t\t\tbatchOrType = new Batch();\n\t\t\t} else if ( !( batchOrType instanceof Batch ) ) {\n\t\t\t\tbatchOrType = new Batch( batchOrType );\n\t\t\t}\n\n\t\t\tthis._pendingChanges.push( { batch: batchOrType, callback } as any );\n\n\t\t\tif ( this._pendingChanges.length == 1 ) {\n\t\t\t\tthis._runPendingChanges();\n\t\t\t}\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next -- @preserve */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\t/**\n\t * {@link module:utils/observablemixin~Observable#decorate Decorated} function for applying\n\t * {@link module:engine/model/operation/operation~Operation operations} to the model.\n\t *\n\t * This is a low-level way of changing the model. It is exposed for very specific use cases (like the undo feature).\n\t * Normally, to modify the model, you will want to use {@link module:engine/model/writer~Writer `Writer`}.\n\t * See also {@glink framework/architecture/editing-engine#changing-the-model Changing the model} section\n\t * of the {@glink framework/architecture/editing-engine Editing architecture} guide.\n\t *\n\t * @param operation The operation to apply.\n\t */\n\tpublic applyOperation( operation: Operation ): void {\n\t\t// @if CK_DEBUG_ENGINE // console.log( 'Applying ' + operation );\n\n\t\t// @if CK_DEBUG_ENGINE // this._operationLogs.push( JSON.stringify( operation ) );\n\t\t// @if CK_DEBUG_ENGINE // this._appliedOperations.push( operation );\n\n\t\toperation._execute();\n\t}\n\n\t// @if CK_DEBUG_ENGINE // public getAppliedOperation(): string {\n\t// @if CK_DEBUG_ENGINE // \tif ( !this._appliedOperations ) {\n\t// @if CK_DEBUG_ENGINE // \t\treturn '';\n\t// @if CK_DEBUG_ENGINE // \t}\n\n\t// @if CK_DEBUG_ENGINE // \treturn this._appliedOperations.map( operation => JSON.stringify( operation ) ).join( '-------' );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t// @if CK_DEBUG_ENGINE // public createReplayer( stringifiedOperations: string ): typeof OperationReplayer {\n\t// @if CK_DEBUG_ENGINE // \treturn new OperationReplayer( this, '-------', stringifiedOperations );\n\t// @if CK_DEBUG_ENGINE // }\n\n\t/**\n\t * Inserts content at the position in the editor specified by the selection, as one would expect the paste\n\t * functionality to work.\n\t *\n\t * **Note**: If you want to insert an {@glink framework/deep-dive/schema#object-elements object element}\n\t * (e.g. a {@link module:widget/utils~toWidget widget}), see {@link #insertObject} instead.\n\t *\n\t * This is a high-level method. It takes the {@link #schema schema} into consideration when inserting\n\t * the content, clears the given selection's content before inserting nodes and moves the selection\n\t * to its target position at the end of the process.\n\t * It can split elements, merge them, wrap bare text nodes with paragraphs, etc. &mdash; just like the\n\t * pasting feature should do.\n\t *\n\t * For lower-level methods see {@link module:engine/model/writer~Writer `Writer`}.\n\t *\n\t * This method, unlike {@link module:engine/model/writer~Writer `Writer`}'s methods, does not have to be used\n\t * inside a {@link #change `change()` block}.\n\t *\n\t * # Conversion and schema\n\t *\n\t * Inserting elements and text nodes into the model is not enough to make CKEditor 5 render that content\n\t * to the user. CKEditor 5 implements a model-view-controller architecture and what `model.insertContent()` does\n\t * is only adding nodes to the model. Additionally, you need to define\n\t * {@glink framework/architecture/editing-engine#conversion converters} between the model and view\n\t * and define those nodes in the {@glink framework/architecture/editing-engine#schema schema}.\n\t *\n\t * So, while this method may seem similar to CKEditor 4 `editor.insertHtml()` (in fact, both methods\n\t * are used for paste-like content insertion), the CKEditor 5 method cannot be use to insert arbitrary HTML\n\t * unless converters are defined for all elements and attributes in that HTML.\n\t *\n\t * # Examples\n\t *\n\t * Using `insertContent()` with a manually created model structure:\n\t *\n\t * ```ts\n\t * // Let's create a document fragment containing such content as:\n\t * //\n\t * // <paragraph>foo</paragraph>\n\t * // <blockQuote>\n\t * //    <paragraph>bar</paragraph>\n\t * // </blockQuote>\n\t * const docFrag = editor.model.change( writer => {\n\t * \tconst p1 = writer.createElement( 'paragraph' );\n\t * \tconst p2 = writer.createElement( 'paragraph' );\n\t * \tconst blockQuote = writer.createElement( 'blockQuote' );\n\t * \tconst docFrag = writer.createDocumentFragment();\n\t *\n\t * \twriter.append( p1, docFrag );\n\t * \twriter.append( blockQuote, docFrag );\n\t * \twriter.append( p2, blockQuote );\n\t * \twriter.insertText( 'foo', p1 );\n\t * \twriter.insertText( 'bar', p2 );\n\t *\n\t * \treturn docFrag;\n\t * } );\n\t *\n\t * // insertContent() does not have to be used in a change() block. It can, though,\n\t * // so this code could be moved to the callback defined above.\n\t * editor.model.insertContent( docFrag );\n\t * ```\n\t *\n\t * Using `insertContent()` with an HTML string converted to a model document fragment (similar to the pasting mechanism):\n\t *\n\t * ```ts\n\t * // You can create your own HtmlDataProcessor instance or use editor.data.processor\n\t * // if you have not overridden the default one (which is the HtmlDataProcessor instance).\n\t * const htmlDP = new HtmlDataProcessor( viewDocument );\n\t *\n\t * // Convert an HTML string to a view document fragment:\n\t * const viewFragment = htmlDP.toView( htmlString );\n\t *\n\t * // Convert the view document fragment to a model document fragment\n\t * // in the context of $root. This conversion takes the schema into\n\t * // account so if, for example, the view document fragment contained a bare text node,\n\t * // this text node cannot be a child of $root, so it will be automatically\n\t * // wrapped with a <paragraph>. You can define the context yourself (in the second parameter),\n\t * // and e.g. convert the content like it would happen in a <paragraph>.\n\t * // Note: The clipboard feature uses a custom context called $clipboardHolder\n\t * // which has a loosened schema.\n\t * const modelFragment = editor.data.toModel( viewFragment );\n\t *\n\t * editor.model.insertContent( modelFragment );\n\t * ```\n\t *\n\t * By default this method will use the document selection but it can also be used with a position, range or selection instance.\n\t *\n\t * ```ts\n\t * // Insert text at the current document selection position.\n\t * editor.model.change( writer => {\n\t * \teditor.model.insertContent( writer.createText( 'x' ) );\n\t * } );\n\t *\n\t * // Insert text at a given position - the document selection will not be modified.\n\t * editor.model.change( writer => {\n\t * \teditor.model.insertContent( writer.createText( 'x' ), doc.getRoot(), 2 );\n\t *\n\t * \t// Which is a shorthand for:\n\t * \teditor.model.insertContent( writer.createText( 'x' ), writer.createPositionAt( doc.getRoot(), 2 ) );\n\t * } );\n\t * ```\n\t *\n\t * If you want the document selection to be moved to the inserted content, use the\n\t * {@link module:engine/model/writer~Writer#setSelection `setSelection()`} method of the writer after inserting\n\t * the content:\n\t *\n\t * ```ts\n\t * editor.model.change( writer => {\n\t * \tconst paragraph = writer.createElement( 'paragraph' );\n\t *\n\t * \t// Insert an empty paragraph at the beginning of the root.\n\t * \teditor.model.insertContent( paragraph, writer.createPositionAt( editor.model.document.getRoot(), 0 ) );\n\t *\n\t * \t// Move the document selection to the inserted paragraph.\n\t * \twriter.setSelection( paragraph, 'in' );\n\t * } );\n\t * ```\n\t *\n\t * If an instance of the {@link module:engine/model/selection~Selection model selection} is passed as `selectable`,\n\t * the new content will be inserted at the passed selection (instead of document selection):\n\t *\n\t * ```ts\n\t * editor.model.change( writer => {\n\t * \t// Create a selection in a paragraph that will be used as a place of insertion.\n\t * \tconst selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t * \t// Insert the new text at the created selection.\n\t * \teditor.model.insertContent( writer.createText( 'x' ), selection );\n\t *\n\t * \t// insertContent() modifies the passed selection instance so it can be used to set the document selection.\n\t * \t// Note: This is not necessary when you passed the document selection to insertContent().\n\t * \twriter.setSelection( selection );\n\t * } );\n\t * ```\n\t *\n\t * @fires insertContent\n\t * @param content The content to insert.\n\t * @param selectable The selection into which the content should be inserted.\n\t * If not provided the current model document selection will be used.\n\t * @param placeOrOffset To be used when a model item was passed as `selectable`.\n\t * This param defines a position in relation to that item.\n\t * at the insertion position.\n\t */\n\tpublic insertContent(\n\t\tcontent: Item | ModelDocumentFragment,\n\t\tselectable?: Selectable,\n\t\tplaceOrOffset?: PlaceOrOffset,\n\t\t...rest: Array<unknown>\n\t): ModelRange {\n\t\tconst selection = normalizeSelectable( selectable, placeOrOffset );\n\n\t\t// Passing all call arguments so it acts like decorated method.\n\t\treturn this.fire<ModelInsertContentEvent>( 'insertContent', [ content, selection, placeOrOffset, ...rest ] )!;\n\t}\n\n\t/**\n\t * Inserts an {@glink framework/deep-dive/schema#object-elements object element} at a specific position in the editor content.\n\t *\n\t * This is a high-level API:\n\t * * It takes the {@link #schema schema} into consideration,\n\t * * It clears the content of passed `selectable` before inserting,\n\t * * It can move the selection at the end of the process,\n\t * * It will copy the selected block's attributes to preserve them upon insertion,\n\t * * It can split elements or wrap inline objects with paragraphs if they are not allowed in target position,\n\t * * etc.\n\t *\n\t * # Notes\n\t *\n\t * * If you want to insert a non-object content, see {@link #insertContent} instead.\n\t * * For lower-level API, see {@link module:engine/model/writer~Writer `Writer`}.\n\t * * Unlike {@link module:engine/model/writer~Writer `Writer`}, this method does not have to be used inside\n\t * a {@link #change `change()` block}.\n\t * * Inserting object into the model is not enough to make CKEditor 5 render that content to the user.\n\t * CKEditor 5 implements a model-view-controller architecture and what `model.insertObject()` does\n\t * is only adding nodes to the model. Additionally, you need to define\n\t * {@glink framework/architecture/editing-engine#conversion converters} between the model and view\n\t * and define those nodes in the {@glink framework/architecture/editing-engine#schema schema}.\n\t *\n\t * # Examples\n\t *\n\t * Use the following code to insert an object at the current selection and keep the selection on the inserted element:\n\t *\n\t * ```ts\n\t * const rawHtmlEmbedElement = writer.createElement( 'rawHtml' );\n\t *\n\t * model.insertObject( rawHtmlEmbedElement, null, null, {\n\t * \tsetSelection: 'on'\n\t * } );\n\t * ```\n\t *\n\t * Use the following code to insert an object at the current selection and nudge the selection after the inserted object:\n\t *\n\t * ```ts\n\t * const pageBreakElement = writer.createElement( 'pageBreak' );\n \t *\n\t * model.insertObject( pageBreakElement, null, null, {\n\t * \tsetSelection: 'after'\n\t * } );\n\t * ```\n\t *\n\t * Use the following code to insert an object at the current selection and avoid splitting the content (non-destructive insertion):\n\t *\n\t * ```ts\n\t * const tableElement = writer.createElement( 'table' );\n \t *\n\t * model.insertObject( tableElement, null, null, {\n\t * \tfindOptimalPosition: 'auto'\n\t * } );\n\t * ```\n\t *\n\t * Use the following code to insert an object at the specific range (also: replace the content of the range):\n\t *\n\t * ```ts\n\t * const tableElement = writer.createElement( 'table' );\n\t * const range = model.createRangeOn( model.document.getRoot().getChild( 1 ) );\n \t *\n\t * model.insertObject( tableElement, range );\n\t * ```\n\t *\n\t * @param element An object to be inserted into the model document.\n\t * @param selectable A selectable where the content should be inserted. If not specified, the current\n\t * {@link module:engine/model/document~Document#selection document selection} will be used instead.\n\t * @param placeOrOffset Specifies the exact place or offset for the insertion to take place, relative to `selectable`.\n\t * @param options Additional options.\n\t * @param options.findOptimalPosition An option that, when set, adjusts the insertion position (relative to\n\t * `selectable` and `placeOrOffset`) so that the content of `selectable` is not split upon insertion (a.k.a. non-destructive insertion).\n\t * * When `'auto'`, the algorithm will decide whether to insert the object before or after `selectable` to avoid content splitting.\n\t * * When `'before'`, the closest position before `selectable` will be used that will not result in content splitting.\n\t * * When `'after'`, the closest position after `selectable` will be used that will not result in content splitting.\n\t *\n\t * Note that this option only works for block objects. Inline objects are inserted into text and do not split blocks.\n\t * @param options.setSelection An option that, when set, moves the\n\t * {@link module:engine/model/document~Document#selection document selection} after inserting the object.\n\t * * When `'on'`, the document selection will be set on the inserted object.\n\t * * When `'after'`, the document selection will move to the closest text node after the inserted object. If there is no\n\t * such text node, a paragraph will be created and the document selection will be moved inside it.\n\t * at the insertion position.\n\t */\n\tpublic insertObject(\n\t\telement: ModelElement,\n\t\tselectable?: Selectable,\n\t\tplaceOrOffset?: PlaceOrOffset | null,\n\t\toptions?: {\n\t\t\tfindOptimalPosition?: 'auto' | 'before' | 'after';\n\t\t\tsetSelection?: 'on' | 'after';\n\t\t},\n\t\t...rest: Array<unknown>\n\t): ModelRange {\n\t\tconst selection = normalizeSelectable( selectable, placeOrOffset );\n\n\t\t// Note that options are fired as 2 arguments for backward compatibility with the decorated method.\n\t\t// Passing all call arguments so it acts like decorated method.\n\t\treturn this.fire<ModelInsertObjectEvent>( 'insertObject', [ element, selection, options, options, ...rest ] )!;\n\t}\n\n\t/**\n\t * Deletes content of the selection and merge siblings. The resulting selection is always collapsed.\n\t *\n\t * **Note:** For the sake of predictability, the resulting selection should always be collapsed.\n\t * In cases where a feature wants to modify deleting behavior so selection isn't collapsed\n\t * (e.g. a table feature may want to keep row selection after pressing <kbd>Backspace</kbd>),\n\t * then that behavior should be implemented in the view's listener. At the same time, the table feature\n\t * will need to modify this method's behavior too, e.g. to \"delete contents and then collapse\n\t * the selection inside the last selected cell\" or \"delete the row and collapse selection somewhere near\".\n\t * That needs to be done in order to ensure that other features which use `deleteContent()` will work well with tables.\n\t *\n\t * @fires deleteContent\n\t * @param selection Selection of which the content should be deleted.\n\t * @param options.leaveUnmerged Whether to merge elements after removing the content of the selection.\n\t *\n\t * For example `<heading1>x[x</heading1><paragraph>y]y</paragraph>` will become:\n\t *\n\t * * `<heading1>x^y</heading1>` with the option disabled (`leaveUnmerged == false`)\n\t * * `<heading1>x^</heading1><paragraph>y</paragraph>` with enabled (`leaveUnmerged == true`).\n\t *\n\t * Note: {@link module:engine/model/schema~Schema#isObject object} and {@link module:engine/model/schema~Schema#isLimit limit}\n\t * elements will not be merged.\n\t *\n\t * @param options.doNotResetEntireContent Whether to skip replacing the entire content with a\n\t * paragraph when the entire content was selected.\n\t *\n\t * For example `<heading1>[x</heading1><paragraph>y]</paragraph>` will become:\n\t *\n\t * * `<paragraph>^</paragraph>` with the option disabled (`doNotResetEntireContent == false`)\n\t * * `<heading1>^</heading1>` with enabled (`doNotResetEntireContent == true`)\n\t *\n\t * @param options.doNotAutoparagraph Whether to create a paragraph if after content deletion selection is moved\n\t * to a place where text cannot be inserted.\n\t *\n\t * For example `<paragraph>x</paragraph>[<imageBlock src=\"foo.jpg\"></imageBlock>]` will become:\n\t *\n\t * * `<paragraph>x</paragraph><paragraph>[]</paragraph>` with the option disabled (`doNotAutoparagraph == false`)\n\t * * `<paragraph>x[]</paragraph>` with the option enabled (`doNotAutoparagraph == true`).\n\t *\n\t * **Note:** if there is no valid position for the selection, the paragraph will always be created:\n\t *\n\t * `[<imageBlock src=\"foo.jpg\"></imageBlock>]` -> `<paragraph>[]</paragraph>`.\n\t *\n\t * @param options.direction The direction in which the content is being consumed.\n\t * Deleting backward corresponds to using the <kbd>Backspace</kbd> key, while deleting content forward corresponds to\n\t * the <kbd>Shift</kbd>+<kbd>Backspace</kbd> keystroke.\n\t */\n\tpublic deleteContent(\n\t\tselection: ModelSelection | DocumentSelection,\n\t\toptions?: {\n\t\t\tleaveUnmerged?: boolean;\n\t\t\tdoNotResetEntireContent?: boolean;\n\t\t\tdoNotAutoparagraph?: boolean;\n\t\t\tdirection?: 'forward' | 'backward';\n\t\t\t[ i: string ]: unknown;\n\t\t}\n\t): void {\n\t\tdeleteContent( this, selection, options );\n\t}\n\n\t/**\n\t * Modifies the selection. Currently, the supported modifications are:\n\t *\n\t * * Extending. The selection focus is moved in the specified `options.direction` with a step specified in `options.unit`.\n\t * Possible values for `unit` are:\n\t *  * `'character'` (default) - moves selection by one user-perceived character. In most cases this means moving by one\n\t *  character in `String` sense. However, unicode also defines \"combing marks\". These are special symbols, that combines\n\t *  with a symbol before it (\"base character\") to create one user-perceived character. For example, `q̣̇` is a normal\n\t *  letter `q` with two \"combining marks\": upper dot (`Ux0307`) and lower dot (`Ux0323`). For most actions, i.e. extending\n\t *  selection by one position, it is correct to include both \"base character\" and all of it's \"combining marks\". That is\n\t *  why `'character'` value is most natural and common method of modifying selection.\n\t *  * `'codePoint'` - moves selection by one unicode code point. In contrary to, `'character'` unit, this will insert\n\t *  selection between \"base character\" and \"combining mark\", because \"combining marks\" have their own unicode code points.\n\t *  However, for technical reasons, unicode code points with values above `UxFFFF` are represented in native `String` by\n\t *  two characters, called \"surrogate pairs\". Halves of \"surrogate pairs\" have a meaning only when placed next to each other.\n\t *  For example `𨭎` is represented in `String` by `\\uD862\\uDF4E`. Both `\\uD862` and `\\uDF4E` do not have any meaning\n\t *  outside the pair (are rendered as ? when alone). Position between them would be incorrect. In this case, selection\n\t *  extension will include whole \"surrogate pair\".\n\t *  * `'word'` - moves selection by a whole word.\n\t *\n\t * **Note:** if you extend a forward selection in a backward direction you will in fact shrink it.\n\t *\n\t * @fires modifySelection\n\t * @param selection The selection to modify.\n\t * @param options.direction The direction in which the selection should be modified.\n\t * @param options.unit The unit by which selection should be modified.\n\t * @param options.treatEmojiAsSingleUnit Whether multi-characer emoji sequences should be handled as single unit.\n\t */\n\tpublic modifySelection(\n\t\tselection: ModelSelection | DocumentSelection,\n\t\toptions?: {\n\t\t\tdirection?: 'forward' | 'backward';\n\t\t\tunit?: 'character' | 'codePoint' | 'word';\n\t\t\ttreatEmojiAsSingleUnit?: boolean;\n\t\t}\n\t): void {\n\t\tmodifySelection( this, selection, options );\n\t}\n\n\t/**\n\t * Gets a clone of the selected content.\n\t *\n\t * For example, for the following selection:\n\t *\n\t * ```html\n\t * <paragraph>x</paragraph>\n\t * <blockQuote>\n\t * \t<paragraph>y</paragraph>\n\t * \t<heading1>fir[st</heading1>\n\t * </blockQuote>\n\t * <paragraph>se]cond</paragraph>\n\t * <paragraph>z</paragraph>\n\t * ```\n\t *\n\t * It will return a document fragment with such a content:\n\t *\n\t * ```html\n\t * <blockQuote>\n\t * \t<heading1>st</heading1>\n\t * </blockQuote>\n\t * <paragraph>se</paragraph>\n\t * ```\n\t *\n\t * @fires getSelectedContent\n\t * @param selection The selection of which content will be returned.\n\t */\n\tpublic getSelectedContent( selection: ModelSelection | DocumentSelection ): ModelDocumentFragment {\n\t\treturn getSelectedContent( this, selection );\n\t}\n\n\t/**\n\t * Checks whether the given {@link module:engine/model/range~Range range} or\n\t * {@link module:engine/model/element~Element element} has any meaningful content.\n\t *\n\t * Meaningful content is:\n\t *\n\t * * any text node (`options.ignoreWhitespaces` allows controlling whether this text node must also contain\n\t * any non-whitespace characters),\n\t * * or any {@link module:engine/model/schema~Schema#isContent content element},\n\t * * or any {@link module:engine/model/markercollection~Marker marker} which\n\t * {@link module:engine/model/markercollection~Marker#_affectsData affects data}.\n\t *\n\t * This means that a range containing an empty `<paragraph></paragraph>` is not considered to have a meaningful content.\n\t * However, a range containing an `<imageBlock></imageBlock>` (which would normally be marked in the schema as an object element)\n\t * is considered non-empty.\n\t *\n\t * @param rangeOrElement Range or element to check.\n\t * @param options.ignoreWhitespaces Whether text node with whitespaces only should be considered empty.\n\t * @param options.ignoreMarkers Whether markers should be ignored.\n\t */\n\tpublic hasContent(\n\t\trangeOrElement: ModelRange | ModelElement | ModelDocumentFragment,\n\t\toptions: {\n\t\t\tignoreWhitespaces?: boolean;\n\t\t\tignoreMarkers?: boolean;\n\t\t} = {}\n\t): boolean {\n\t\tconst range = rangeOrElement instanceof ModelRange ? rangeOrElement : ModelRange._createIn( rangeOrElement );\n\n\t\tif ( range.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst { ignoreWhitespaces = false, ignoreMarkers = false } = options;\n\n\t\t// Check if there are any markers which affects data in this given range.\n\t\tif ( !ignoreMarkers ) {\n\t\t\tfor ( const intersectingMarker of this.markers.getMarkersIntersectingRange( range ) ) {\n\t\t\t\tif ( intersectingMarker.affectsData ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor ( const item of range.getItems() ) {\n\t\t\tif ( this.schema.isContent( item ) ) {\n\t\t\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\t\t\tif ( !ignoreWhitespaces ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t} else if ( item.data.search( /\\S/ ) !== -1 ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Creates a position from the given root and path in that root.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionFromPath `Writer#createPositionFromPath()`}.\n\t *\n\t * @param root Root of the position.\n\t * @param path Position path. See {@link module:engine/model/position~Position#path}.\n\t * @param stickiness Position stickiness. See {@link module:engine/model/position~PositionStickiness}.\n\t */\n\tpublic createPositionFromPath(\n\t\troot: ModelElement | ModelDocumentFragment,\n\t\tpath: ReadonlyArray<number>,\n\t\tstickiness?: PositionStickiness\n\t): ModelPosition {\n\t\treturn new ModelPosition( root, path, stickiness );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/model/position~Position position},\n\t * * a parent element and offset in that element,\n\t * * a parent element and `'end'` (the position will be set at the end of that element),\n\t * * a {@link module:engine/model/item~Item model item} and `'before'` or `'after'`\n\t * (the position will be set before or after the given model item).\n\t *\n\t * This method is a shortcut to other factory methods such as:\n\t *\n\t * * {@link module:engine/model/model~Model#createPositionBefore `createPositionBefore()`},\n\t * * {@link module:engine/model/model~Model#createPositionAfter `createPositionAfter()`}.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionAt `Writer#createPositionAt()`},\n\t *\n\t * @param itemOrPosition\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/model/item~Item model item}.\n\t */\n\tpublic createPositionAt(\n\t\titemOrPosition: Item | ModelPosition | ModelDocumentFragment,\n\t\toffset?: PositionOffset\n\t): ModelPosition {\n\t\treturn ModelPosition._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after the given {@link module:engine/model/item~Item model item}.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionAfter `Writer#createPositionAfter()`}.\n\t *\n\t * @param item Item after which the position should be placed.\n\t */\n\tpublic createPositionAfter( item: Item ): ModelPosition {\n\t\treturn ModelPosition._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before the given {@link module:engine/model/item~Item model item}.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createPositionBefore `Writer#createPositionBefore()`}.\n\t *\n\t * @param item Item before which the position should be placed.\n\t */\n\tpublic createPositionBefore( item: Item ): ModelPosition {\n\t\treturn ModelPosition._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from the `start` position to the `end` position.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createRange `Writer#createRange()`}:\n\t *\n\t * ```ts\n\t * model.change( writer => {\n\t * \tconst range = writer.createRange( start, end );\n\t * } );\n\t * ```\n\t *\n\t * @param start Start position.\n\t * @param end End position. If not set, the range will be collapsed to the `start` position.\n\t */\n\tpublic createRange( start: ModelPosition, end?: ModelPosition ): ModelRange {\n\t\treturn new ModelRange( start, end );\n\t}\n\n\t/**\n\t * Creates a range inside the given element which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createRangeIn `Writer#createRangeIn()`}:\n\t *\n\t * ```ts\n\t * model.change( writer => {\n\t * \tconst range = writer.createRangeIn( paragraph );\n\t * } );\n\t * ```\n\t *\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic createRangeIn( element: ModelElement | ModelDocumentFragment ): ModelRange {\n\t\treturn ModelRange._createIn( element );\n\t}\n\n\t/**\n\t * Creates a range that starts before the given {@link module:engine/model/item~Item model item} and ends after it.\n\t *\n\t * Note: This method is also available on `writer` instance as\n\t * {@link module:engine/model/writer~Writer#createRangeOn `Writer.createRangeOn()`}:\n\t *\n\t * ```ts\n\t * model.change( writer => {\n\t * \tconst range = writer.createRangeOn( paragraph );\n\t * } );\n\t * ```\n\t *\n\t * @param item\n\t */\n\tpublic createRangeOn( item: Item ): ModelRange {\n\t\treturn ModelRange._createOn( item );\n\t}\n\n\t/**\n\t * Creates a new selection instance based on the given {@link module:engine/model/selection~Selectable selectable}\n\t * or creates an empty selection if no arguments were passed.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createSelection `Writer#createSelection()`}.\n\t *\n\t * ```ts\n\t * // Creates selection at the given offset in the given element.\n\t * const paragraph = writer.createElement( 'paragraph' );\n\t * const selection = writer.createSelection( paragraph, offset );\n\t *\n\t * // Creates a range inside an {@link module:engine/model/element~Element element} which starts before the\n\t * // first child of that element and ends after the last child of that element.\n\t * const selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t * // Creates a range on an {@link module:engine/model/item~Item item} which starts before the item and ends\n\t * // just after the item.\n\t * const selection = writer.createSelection( paragraph, 'on' );\n\t *\n\t * // Additional options (`'backward'`) can be specified as the last argument.\n\t *\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( element, 'in', { backward: true } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:SELECTABLE `createSelection( selectable, options )`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic createSelection( selectable: Node, placeOrOffset: PlaceOrOffset, options?: { backward?: boolean } ): ModelSelection;\n\n\t/**\n\t * Creates a new selection instance based on the given {@link module:engine/model/selection~Selectable selectable}\n\t * or creates an empty selection if no arguments were passed.\n\t *\n\t * Note: This method is also available as\n\t * {@link module:engine/model/writer~Writer#createSelection `Writer#createSelection()`}.\n\t *\n\t * ```ts\n\t * // Creates empty selection without ranges.\n\t * const selection = writer.createSelection();\n\t *\n\t * // Creates selection at the given range.\n\t * const range = writer.createRange( start, end );\n\t * const selection = writer.createSelection( range );\n\t *\n\t * // Creates selection at the given ranges\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * const selection = writer.createSelection( ranges );\n\t *\n\t * // Creates selection from the other selection.\n\t * // Note: It doesn't copies selection attributes.\n\t * const otherSelection = writer.createSelection();\n\t * const selection = writer.createSelection( otherSelection );\n\t *\n\t * // Creates selection from the given document selection.\n\t * // Note: It doesn't copies selection attributes.\n\t * const documentSelection = model.document.selection;\n\t * const selection = writer.createSelection( documentSelection );\n\t *\n\t * // Creates selection at the given position.\n\t * const position = writer.createPositionFromPath( root, path );\n\t * const selection = writer.createSelection( position );\n\t *\n\t * // Additional options (`'backward'`) can be specified as the last argument.\n\t *\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:NODE_OFFSET `createSelection( node, placeOrOffset, options )`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic createSelection( selectable?: Exclude<Selectable, Node>, options?: { backward?: boolean } ): ModelSelection;\n\n\tpublic createSelection( ...args: ConstructorParameters<typeof ModelSelection> ): ModelSelection {\n\t\treturn new ModelSelection( ...args );\n\t}\n\n\t/**\n\t * Creates a {@link module:engine/model/batch~Batch} instance.\n\t *\n\t * **Note:** In most cases creating a batch instance is not necessary as they are created when using:\n\t *\n\t * * {@link #change `change()`},\n\t * * {@link #enqueueChange `enqueueChange()`}.\n\t *\n\t * @param type {@link module:engine/model/batch~Batch#constructor The type} of the batch.\n\t */\n\tpublic createBatch( type?: BatchType ): Batch {\n\t\treturn new Batch( type );\n\t}\n\n\t/**\n\t * Creates an operation instance from a JSON object (parsed JSON string).\n\t *\n\t * This is an alias for {@link module:engine/model/operation/operationfactory~OperationFactory.fromJSON `OperationFactory.fromJSON()`}.\n\t *\n\t * @param json Deserialized JSON object.\n\t */\n\tpublic createOperationFromJSON( json: unknown ): Operation {\n\t\treturn OperationFactory.fromJSON( json, this.document );\n\t}\n\n\t/**\n\t * Removes all events listeners set by model instance and destroys {@link module:engine/model/document~Document}.\n\t */\n\tpublic destroy(): void {\n\t\tthis.document.destroy();\n\t\tthis.stopListening();\n\t}\n\n\t/**\n\t * Common part of {@link module:engine/model/model~Model#change} and {@link module:engine/model/model~Model#enqueueChange}\n\t * which calls callbacks and returns array of values returned by these callbacks.\n\t *\n\t */\n\tprivate _runPendingChanges() {\n\t\tconst ret = [];\n\n\t\tthis.fire( '_beforeChanges' );\n\n\t\ttry {\n\t\t\twhile ( this._pendingChanges.length ) {\n\t\t\t\t// Create a new writer using batch instance created for this chain of changes.\n\t\t\t\tconst currentBatch = this._pendingChanges[ 0 ].batch;\n\t\t\t\tthis._currentWriter = new Writer( this, currentBatch );\n\n\t\t\t\t// Execute changes callback and gather the returned value.\n\t\t\t\tconst callbackReturnValue = this._pendingChanges[ 0 ].callback( this._currentWriter );\n\t\t\t\tret.push( callbackReturnValue );\n\n\t\t\t\tthis.document._handleChangeBlock( this._currentWriter );\n\n\t\t\t\tthis._pendingChanges.shift();\n\t\t\t\tthis._currentWriter = null;\n\t\t\t}\n\t\t} finally {\n\t\t\tthis._pendingChanges.length = 0;\n\t\t\tthis._currentWriter = null;\n\n\t\t\tthis.fire( '_afterChanges' );\n\t\t}\n\n\t\treturn ret;\n\t}\n}\n\n/**\n * Normalizes a selectable to a Selection or DocumentSelection.\n */\nfunction normalizeSelectable(\n\tselectable?: Selectable,\n\tplaceOrOffset?: PlaceOrOffset | null\n): ModelSelection | DocumentSelection | undefined {\n\tif ( !selectable ) {\n\t\treturn;\n\t}\n\n\tif ( selectable instanceof ModelSelection || selectable instanceof DocumentSelection ) {\n\t\treturn selectable;\n\t}\n\n\tif ( selectable instanceof Node ) {\n\t\treturn new ModelSelection( selectable, placeOrOffset! );\n\t}\n\n\treturn new ModelSelection( selectable );\n}\n\n/**\n * Fired when entering the outermost {@link module:engine/model/model~Model#enqueueChange} or\n * {@link module:engine/model/model~Model#change} block.\n *\n * @internal\n * @eventName ~Model#_beforeChanges\n */\nexport type BeforeChangesEvent = {\n\tname: '_beforeChanges';\n\targs: [];\n};\n\n/**\n * Fired when leaving the outermost {@link module:engine/model/model~Model#enqueueChange} or\n * {@link module:engine/model/model~Model#change} block.\n *\n * @internal\n * @eventName ~Model#_afterChanges\n */\nexport type AfterChangesEvent = {\n\tname: '_afterChanges';\n\targs: [];\n};\n\n/**\n * Fired every time any {@link module:engine/model/operation/operation~Operation operation} is applied on the model\n * using {@link ~Model#applyOperation}.\n *\n * Note that this event is suitable only for very specific use-cases. Use it if you need to listen to every single operation\n * applied on the document. However, in most cases {@link module:engine/model/document~Document#event:change} should\n * be used.\n *\n * A few callbacks are already added to this event by engine internal classes:\n *\n * * with `highest` priority operation is validated,\n * * with `normal` priority operation is executed,\n * * with `low` priority the {@link module:engine/model/document~Document} updates its version,\n * * with `low` priority {@link module:engine/model/liveposition~LivePosition} and {@link module:engine/model/liverange~LiveRange}\n * update themselves.\n *\n * @eventName ~Model#applyOperation\n * @param args Arguments of the `applyOperation` which is an array with a single element - applied\n * {@link module:engine/model/operation/operation~Operation operation}.\n */\nexport type ModelApplyOperationEvent = DecoratedMethodEvent<Model, 'applyOperation'>;\n\n/**\n * Event fired when {@link ~Model#insertContent} method is called.\n *\n * The {@link ~Model#insertContent default action of that method} is implemented as a\n * listener to this event so it can be fully customized by the features.\n *\n * **Note** The `selectable` parameter for the {@link ~Model#insertContent} is optional. When `undefined` value is passed the method uses\n * {@link module:engine/model/document~Document#selection document selection}.\n *\n * @eventName ~Model#insertContent\n * @param args The arguments passed to the original method.\n */\nexport type ModelInsertContentEvent = {\n\tname: 'insertContent';\n\targs: [ [\n\t\tcontent: Item | ModelDocumentFragment,\n\t\tselectable?: ModelSelection | DocumentSelection,\n\t\t...rest: Array<unknown>\n\t] ];\n\treturn: ModelRange;\n};\n\n/**\n * Event fired when the {@link ~Model#insertObject} method is called.\n *\n * The {@link ~Model#insertObject default action of that method} is implemented as a\n * listener to this event so it can be fully customized by the features.\n *\n * **Note** The `selectable` parameter for the {@link ~Model#insertObject} is optional. When `undefined` value is passed the method uses\n * {@link module:engine/model/document~Document#selection document selection}.\n *\n * @eventName ~Model#insertObject\n * @param args The arguments passed to the original method.\n */\nexport type ModelInsertObjectEvent = {\n\tname: 'insertObject';\n\targs: [ [\n\t\telement: ModelElement,\n\t\tselectable?: ModelSelection | DocumentSelection | null,\n\t\toptions?: {\n\t\t\tfindOptimalPosition?: 'auto' | 'before' | 'after';\n\t\t\tsetSelection?: 'on' | 'after';\n\t\t},\n\t\t...rest: Array<unknown>\n\t] ];\n\treturn: ModelRange;\n};\n\n/**\n * Event fired when {@link ~Model#deleteContent} method is called.\n *\n * The {@link ~Model#deleteContent default action of that method} is implemented as a\n * listener to this event so it can be fully customized by the features.\n *\n * @eventName ~Model#deleteContent\n * @param args The arguments passed to the original method.\n */\nexport type ModelDeleteContentEvent = DecoratedMethodEvent<Model, 'deleteContent'>;\n\n/**\n * Event fired when {@link ~Model#modifySelection} method is called.\n *\n * The {@link ~Model#modifySelection default action of that method} is implemented as a\n * listener to this event so it can be fully customized by the features.\n *\n * @eventName ~Model#modifySelection\n * @param args The arguments passed to the original method.\n */\nexport type ModelModifySelectionEvent = DecoratedMethodEvent<Model, 'modifySelection'>;\n\n/**\n * Event fired when {@link ~Model#getSelectedContent} method is called.\n *\n * The {@link ~Model#getSelectedContent default action of that method} is implemented as a\n * listener to this event so it can be fully customized by the features.\n *\n * @eventName ~Model#getSelectedContent\n * @param args The arguments passed to the original method.\n */\nexport type ModelGetSelectedContentEvent = DecoratedMethodEvent<Model, 'getSelectedContent'>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/clickobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\nimport type { BubblingEvent } from './bubblingemittermixin';\n\n/**\n * {@link module:engine/view/document~Document#event:click Click} event observer.\n *\n * Note that this observer is not available by default. To make it available it needs to be added to\n * {@link module:engine/view/view~View view controller} by a {@link module:engine/view/view~View#addObserver} method.\n */\nexport default class ClickObserver extends DomEventObserver<'click'> {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly domEventType = 'click' as const;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic onDomEvent( domEvent: MouseEvent ): void {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n}\n\n/**\n * Fired when one of the editables has been clicked.\n *\n * Introduced by {@link module:engine/view/observer/clickobserver~ClickObserver}.\n *\n * Note that this event is not available by default. To make it available\n * {@link module:engine/view/observer/clickobserver~ClickObserver} needs to be added\n * to {@link module:engine/view/view~View} by a {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/clickobserver~ClickObserver\n * @eventName module:engine/view/document~Document#click\n * @param data Event data.\n */\nexport type ViewDocumentClickEvent = BubblingEvent<{\n\tname: 'click';\n\targs: [ data: DomEventData<MouseEvent> ];\n}>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/observer/mouseobserver\n */\n\nimport DomEventObserver from './domeventobserver';\nimport type DomEventData from './domeventdata';\n\n/**\n * Mouse events observer.\n *\n * Note that this observer is not available by default. To make it available it needs to be added to\n * {@link module:engine/view/view~View} by {@link module:engine/view/view~View#addObserver} method.\n */\nexport default class MouseObserver extends DomEventObserver<'mousedown' | 'mouseup' | 'mouseover' | 'mouseout'> {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly domEventType = [ 'mousedown', 'mouseup', 'mouseover', 'mouseout' ] as const;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic onDomEvent( domEvent: MouseEvent ): void {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n}\n\n/**\n * Fired when the mouse button is pressed down on one of the editing roots of the editor.\n *\n * Introduced by {@link module:engine/view/observer/mouseobserver~MouseObserver}.\n *\n * Note that this event is not available by default. To make it available, {@link module:engine/view/observer/mouseobserver~MouseObserver}\n * needs to be added to {@link module:engine/view/view~View} by the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/mouseobserver~MouseObserver\n * @eventName module:engine/view/document~Document#mousedown\n * @param data The event data.\n */\nexport type ViewDocumentMouseDownEvent = {\n\tname: 'mousedown';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n\n/**\n * Fired when the mouse button is released over one of the editing roots of the editor.\n *\n * Introduced by {@link module:engine/view/observer/mouseobserver~MouseObserver}.\n *\n * Note that this event is not available by default. To make it available, {@link module:engine/view/observer/mouseobserver~MouseObserver}\n * needs to be added to {@link module:engine/view/view~View} by the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/mouseobserver~MouseObserver\n * @eventName module:engine/view/document~Document#mouseup\n * @param  data The event data.\n */\nexport type ViewDocumentMouseUpEvent = {\n\tname: 'mouseup';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n\n/**\n * Fired when the mouse is over one of the editing roots of the editor.\n *\n * Introduced by {@link module:engine/view/observer/mouseobserver~MouseObserver}.\n *\n * Note that this event is not available by default. To make it available, {@link module:engine/view/observer/mouseobserver~MouseObserver}\n * needs to be added to {@link module:engine/view/view~View} by the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/mouseobserver~MouseObserver\n * @eventName module:engine/view/document~Document#mouseover\n * @param  data The event data.\n */\nexport type ViewDocumentMouseOverEvent = {\n\tname: 'mouseover';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n\n/**\n * Fired when the mouse is moved out of the one of the editing roots of the editor.\n *\n * Introduced by {@link module:engine/view/observer/mouseobserver~MouseObserver}.\n *\n * Note that this event is not available by default. To make it available, {@link module:engine/view/observer/mouseobserver~MouseObserver}\n * needs to be added to {@link module:engine/view/view~View} by the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:engine/view/observer/mouseobserver~MouseObserver\n * @eventName module:engine/view/document~Document#mouseout\n * @param  data The event data.\n */\nexport type ViewDocumentMouseOutEvent = {\n\tname: 'mouseout';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/upcastwriter\n */\n\nimport DocumentFragment from './documentfragment';\nimport Element, { type ElementAttributes } from './element';\nimport Text from './text';\nimport { isPlainObject } from 'lodash-es';\nimport Position, { type PositionOffset } from './position';\nimport Range from './range';\nimport Selection, {\n\ttype PlaceOrOffset,\n\ttype Selectable,\n\ttype SelectionOptions\n} from './selection';\n\nimport type Document from './document';\nimport type Item from './item';\nimport type Node from './node';\n\n/**\n * View upcast writer. It provides a set of methods used to manipulate non-semantic view trees.\n *\n * It should be used only while working on a non-semantic view\n * (e.g. a view created from HTML string on paste).\n * To manipulate a view which was or is being downcasted from the the model use the\n * {@link module:engine/view/downcastwriter~DowncastWriter downcast writer}.\n *\n * Read more about changing the view in the {@glink framework/architecture/editing-engine#changing-the-view Changing the view}\n * section of the {@glink framework/architecture/editing-engine Editing engine architecture} guide.\n *\n * Unlike `DowncastWriter`, which is available in the {@link module:engine/view/view~View#change `View#change()`} block,\n * `UpcastWriter` can be created wherever you need it:\n *\n * ```ts\n * const writer = new UpcastWriter( viewDocument );\n * const text = writer.createText( 'foo!' );\n *\n * writer.appendChild( text, someViewElement );\n * ```\n */\nexport default class UpcastWriter {\n\t/**\n\t * The view document instance in which this upcast writer operates.\n\t */\n\tpublic readonly document: Document;\n\n\t/**\n\t * @param document The view document instance in which this upcast writer operates.\n\t */\n\tconstructor( document: Document ) {\n\t\tthis.document = document;\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/documentfragment~DocumentFragment} instance.\n\t *\n\t * @param children A list of nodes to be inserted into the created document fragment.\n\t * @returns The created document fragment.\n\t */\n\tpublic createDocumentFragment( children?: Node | Iterable<Node> ): DocumentFragment {\n\t\treturn new DocumentFragment( this.document, children );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/element~Element} instance.\n\t *\n\t * Attributes can be passed in various formats:\n\t *\n\t * ```ts\n\t * upcastWriter.createElement( 'div', { class: 'editor', contentEditable: 'true' } ); // object\n\t * upcastWriter.createElement( 'div', [ [ 'class', 'editor' ], [ 'contentEditable', 'true' ] ] ); // map-like iterator\n\t * upcastWriter.createElement( 'div', mapOfAttributes ); // map\n\t * ```\n\t *\n\t * @param name Node name.\n\t * @param attrs Collection of attributes.\n\t * @param children A list of nodes to be inserted into created element.\n\t * @returns Created element.\n\t */\n\tpublic createElement(\n\t\tname: string,\n\t\tattrs?: ElementAttributes,\n\t\tchildren?: Node | Iterable<Node>\n\t): Element {\n\t\treturn new Element( this.document, name, attrs, children );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/text~Text} instance.\n\t *\n\t * @param data The text's data.\n\t * @returns The created text node.\n\t */\n\tpublic createText( data: string ): Text {\n\t\treturn new Text( this.document, data );\n\t}\n\n\t/**\n\t * Clones the provided element.\n\t *\n\t * @see module:engine/view/element~Element#_clone\n\t * @param element Element to be cloned.\n\t * @param deep If set to `true` clones element and all its children recursively. When set to `false`,\n\t * element will be cloned without any children.\n\t * @returns Clone of this element.\n\t */\n\tpublic clone( element: Element, deep: boolean = false ): Element {\n\t\treturn element._clone( deep );\n\t}\n\n\t/**\n\t * Appends a child node or a list of child nodes at the end of this node\n\t * and sets the parent of these nodes to this element.\n\t *\n\t * @see module:engine/view/element~Element#_appendChild\n\t * @param items Items to be inserted.\n\t * @param element Element to which items will be appended.\n\t * @returns Number of appended nodes.\n\t */\n\tpublic appendChild( items: Item | string | Iterable<Item | string>, element: Element | DocumentFragment ): number {\n\t\treturn element._appendChild( items );\n\t}\n\n\t/**\n\t * Inserts a child node or a list of child nodes on the given index and sets the parent of these nodes to\n\t * this element.\n\t *\n\t * @see module:engine/view/element~Element#_insertChild\n\t * @param index Offset at which nodes should be inserted.\n\t * @param items Items to be inserted.\n\t * @param element Element to which items will be inserted.\n\t * @returns Number of inserted nodes.\n\t */\n\tpublic insertChild( index: number, items: Item | Iterable<Item>, element: Element | DocumentFragment ): number {\n\t\treturn element._insertChild( index, items );\n\t}\n\n\t/**\n\t * Removes the given number of child nodes starting at the given index and set the parent of these nodes to `null`.\n\t *\n\t * @see module:engine/view/element~Element#_removeChildren\n\t * @param index Offset from which nodes will be removed.\n\t * @param howMany Number of nodes to remove.\n\t * @param element Element which children will be removed.\n\t * @returns The array containing removed nodes.\n\t */\n\tpublic removeChildren( index: number, howMany: number, element: Element | DocumentFragment ): Array<Node> {\n\t\treturn element._removeChildren( index, howMany );\n\t}\n\n\t/**\n\t * Removes given element from the view structure. Will not have effect on detached elements.\n\t *\n\t * @param element Element which will be removed.\n\t * @returns The array containing removed nodes.\n\t */\n\tpublic remove( element: Node ): Array<Node> {\n\t\tconst parent = element.parent;\n\n\t\tif ( parent ) {\n\t\t\treturn this.removeChildren( parent.getChildIndex( element ), 1, parent );\n\t\t}\n\n\t\treturn [];\n\t}\n\n\t/**\n\t * Replaces given element with the new one in the view structure. Will not have effect on detached elements.\n\t *\n\t * @param oldElement Element which will be replaced.\n\t * @param newElement Element which will be inserted in the place of the old element.\n\t * @returns Whether old element was successfully replaced.\n\t */\n\tpublic replace( oldElement: Element, newElement: Element ): boolean {\n\t\tconst parent = oldElement.parent;\n\n\t\tif ( parent ) {\n\t\t\tconst index = parent.getChildIndex( oldElement )!;\n\n\t\t\tthis.removeChildren( index, 1, parent );\n\t\t\tthis.insertChild( index, newElement, parent );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Removes given element from view structure and places its children in its position.\n\t * It does nothing if element has no parent.\n\t *\n\t * @param element Element to unwrap.\n\t */\n\tpublic unwrapElement( element: Element ): void {\n\t\tconst parent = element.parent;\n\n\t\tif ( parent ) {\n\t\t\tconst index = parent.getChildIndex( element )!;\n\n\t\t\tthis.remove( element );\n\t\t\tthis.insertChild( index, element.getChildren(), parent );\n\t\t}\n\t}\n\n\t/**\n\t * Renames element by creating a copy of a given element but with its name changed and then moving contents of the\n\t * old element to the new one.\n\t *\n\t * Since this function creates a new element and removes the given one, the new element is returned to keep reference.\n\t *\n\t * @param newName New element name.\n\t * @param  element Element to be renamed.\n\t * @returns New element or null if the old element was not replaced (happens for detached elements).\n\t */\n\tpublic rename( newName: string, element: Element ): Element | null {\n\t\tconst newElement = new Element( this.document, newName, element.getAttributes(), element.getChildren() );\n\n\t\treturn this.replace( element, newElement ) ? newElement : null;\n\t}\n\n\t/**\n\t * Adds or overwrites element's attribute with a specified key and value.\n\t *\n\t * ```ts\n\t * writer.setAttribute( 'href', 'http://ckeditor.com', linkElement );\n\t * ```\n\t *\n\t * @see module:engine/view/element~Element#_setAttribute\n\t * @param key Attribute key.\n\t * @param value Attribute value.\n\t * @param element Element for which attribute will be set.\n\t */\n\tpublic setAttribute( key: string, value: unknown, element: Element ): void {\n\t\telement._setAttribute( key, value );\n\t}\n\n\t/**\n\t * Removes attribute from the element.\n\t *\n\t * ```ts\n\t * writer.removeAttribute( 'href', linkElement );\n\t * ```\n\t *\n\t * @see module:engine/view/element~Element#_removeAttribute\n\t * @param key Attribute key.\n\t * @param element Element from which attribute will be removed.\n\t */\n\tpublic removeAttribute( key: string, element: Element ): void {\n\t\telement._removeAttribute( key );\n\t}\n\n\t/**\n\t * Adds specified class to the element.\n\t *\n\t * ```ts\n\t * writer.addClass( 'foo', linkElement );\n\t * writer.addClass( [ 'foo', 'bar' ], linkElement );\n\t * ```\n\t *\n\t * @see module:engine/view/element~Element#_addClass\n\t * @param className Single class name or array of class names which will be added.\n\t * @param element Element for which class will be added.\n\t */\n\tpublic addClass( className: string | Array<string>, element: Element ): void {\n\t\telement._addClass( className );\n\t}\n\n\t/**\n\t * Removes specified class from the element.\n\t *\n\t * ```ts\n\t * writer.removeClass( 'foo', linkElement );\n\t * writer.removeClass( [ 'foo', 'bar' ], linkElement );\n\t * ```\n\t *\n\t * @see module:engine/view/element~Element#_removeClass\n\t * @param className Single class name or array of class names which will be removed.\n\t * @param element Element from which class will be removed.\n\t */\n\tpublic removeClass( className: string | Array<string>, element: Element ): void {\n\t\telement._removeClass( className );\n\t}\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t * ```ts\n\t * writer.setStyle( 'color', 'red', element );\n\t * ```\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @see module:engine/view/element~Element#_setStyle\n\t * @label KEY_VALUE\n\t * @param property Property name.\n\t * @param value Value to set.\n\t * @param element Element for which style will be added.\n\t */\n\tpublic setStyle( property: string, value: string, element: Element ): void;\n\n\t/**\n\t * Adds style to the element.\n\t *\n\t * ```ts\n\t * writer.setStyle( {\n\t * \tcolor: 'red',\n\t * \tposition: 'fixed'\n\t * }, element );\n\t * ```\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#set `StylesMap#set()`} for details.\n\t *\n\t * @see module:engine/view/element~Element#_setStyle\n\t * @label OBJECT\n\t * @param properties Object with key - value pairs.\n\t * @param element Element for which style will be added.\n\t */\n\tpublic setStyle( properties: Record<string, string>, element: Element ): void;\n\n\tpublic setStyle( property: string | Record<string, string>, valueOrElement: string | Element, element?: Element ): void {\n\t\tif ( isPlainObject( property ) && element === undefined ) {\n\t\t\t( valueOrElement as Element )._setStyle( property as Record<string, string> );\n\t\t} else {\n\t\t\telement!._setStyle( property as string, valueOrElement as string );\n\t\t}\n\t}\n\n\t/**\n\t * Removes specified style from the element.\n\t *\n\t * ```ts\n\t * writer.removeStyle( 'color', element );  // Removes 'color' style.\n\t * writer.removeStyle( [ 'color', 'border-top' ], element ); // Removes both 'color' and 'border-top' styles.\n\t * ```\n\t *\n\t * **Note**: This method can work with normalized style names if\n\t * {@link module:engine/controller/datacontroller~DataController#addStyleProcessorRules a particular style processor rule is enabled}.\n\t * See {@link module:engine/view/stylesmap~StylesMap#remove `StylesMap#remove()`} for details.\n\t *\n\t * @see module:engine/view/element~Element#_removeStyle\n\t * @param property Style property name or names to be removed.\n\t * @param element Element from which style will be removed.\n\t */\n\tpublic removeStyle( property: string | Array<string>, element: Element ): void {\n\t\telement._removeStyle( property );\n\t}\n\n\t/**\n\t * Sets a custom property on element. Unlike attributes, custom properties are not rendered to the DOM,\n\t * so they can be used to add special data to elements.\n\t *\n\t * @see module:engine/view/element~Element#_setCustomProperty\n\t * @param key Custom property name/key.\n\t * @param value Custom property value to be stored.\n\t * @param element Element for which custom property will be set.\n\t */\n\tpublic setCustomProperty( key: string | symbol, value: unknown, element: Element | DocumentFragment ): void {\n\t\telement._setCustomProperty( key, value );\n\t}\n\n\t/**\n\t * Removes a custom property stored under the given key.\n\t *\n\t * @see module:engine/view/element~Element#_removeCustomProperty\n\t * @param key Name/key of the custom property to be removed.\n\t * @param element Element from which the custom property will be removed.\n\t * @returns Returns true if property was removed.\n\t */\n\tpublic removeCustomProperty( key: string | symbol, element: Element | DocumentFragment ): boolean {\n\t\treturn element._removeCustomProperty( key );\n\t}\n\n\t/**\n\t * Creates position at the given location. The location can be specified as:\n\t *\n\t * * a {@link module:engine/view/position~Position position},\n\t * * parent element and offset (offset defaults to `0`),\n\t * * parent element and `'end'` (sets position at the end of that element),\n\t * * {@link module:engine/view/item~Item view item} and `'before'` or `'after'` (sets position before or after given view item).\n\t *\n\t * This method is a shortcut to other constructors such as:\n\t *\n\t * * {@link #createPositionBefore},\n\t * * {@link #createPositionAfter},\n\t *\n\t * @param offset Offset or one of the flags. Used only when first parameter is a {@link module:engine/view/item~Item view item}.\n\t */\n\tpublic createPositionAt( itemOrPosition: Item | Position, offset?: PositionOffset ): Position {\n\t\treturn Position._createAt( itemOrPosition, offset );\n\t}\n\n\t/**\n\t * Creates a new position after given view item.\n\t *\n\t * @param item View item after which the position should be located.\n\t */\n\tpublic createPositionAfter( item: Item ): Position {\n\t\treturn Position._createAfter( item );\n\t}\n\n\t/**\n\t * Creates a new position before given view item.\n\t *\n\t * @param item View item before which the position should be located.\n\t */\n\tpublic createPositionBefore( item: Item ): Position {\n\t\treturn Position._createBefore( item );\n\t}\n\n\t/**\n\t * Creates a range spanning from `start` position to `end` position.\n\t *\n\t * **Note:** This factory method creates it's own {@link module:engine/view/position~Position} instances basing on passed values.\n\t *\n\t * @param start Start position.\n\t * @param end End position. If not set, range will be collapsed at `start` position.\n\t */\n\tpublic createRange( start: Position, end: Position ): Range {\n\t\treturn new Range( start, end );\n\t}\n\n\t/**\n\t * Creates a range that starts before given {@link module:engine/view/item~Item view item} and ends after it.\n\t */\n\tpublic createRangeOn( item: Item ): Range {\n\t\treturn Range._createOn( item );\n\t}\n\n\t/**\n\t * Creates a range inside an {@link module:engine/view/element~Element element} which starts before the first child of\n\t * that element and ends after the last child of that element.\n\t *\n\t * @param element Element which is a parent for the range.\n\t */\n\tpublic createRangeIn( element: Element | DocumentFragment ): Range {\n\t\treturn Range._createIn( element );\n\t}\n\n\t/**\n\t * Creates a new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * ```ts\n\t * // Creates collapsed selection at the position of given item and offset.\n\t * const paragraph = writer.createContainerElement( 'paragraph' );\n\t * const selection = writer.createSelection( paragraph, offset );\n\t *\n\t * // Creates a range inside an {@link module:engine/view/element~Element element} which starts before the\n\t * // first child of that element and ends after the last child of that element.\n\t * const selection = writer.createSelection( paragraph, 'in' );\n\t *\n\t * // Creates a range on an {@link module:engine/view/item~Item item} which starts before the item and ends\n\t * // just after the item.\n\t * const selection = writer.createSelection( paragraph, 'on' );\n\t * ```\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( element, 'in', { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = writer.createSelection( element, 'in', { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:SELECTABLE `createSelection( selectable, options )`}.\n\t *\n\t * @label NODE_OFFSET\n\t */\n\tpublic createSelection( selectable: Node, placeOrOffset: PlaceOrOffset, options?: SelectionOptions ): Selection;\n\n\t/**\n\t * Creates a new {@link module:engine/view/selection~Selection} instance.\n\t *\n\t * ```ts\n\t * // Creates empty selection without ranges.\n\t * const selection = writer.createSelection();\n\t *\n\t * // Creates selection at the given range.\n\t * const range = writer.createRange( start, end );\n\t * const selection = writer.createSelection( range );\n\t *\n\t * // Creates selection at the given ranges\n\t * const ranges = [ writer.createRange( start1, end2 ), writer.createRange( star2, end2 ) ];\n\t * const selection = writer.createSelection( ranges );\n\t *\n\t * // Creates selection from the other selection.\n\t * const otherSelection = writer.createSelection();\n\t * const selection = writer.createSelection( otherSelection );\n\t *\n\t * // Creates selection from the document selection.\n\t * const selection = writer.createSelection( editor.editing.view.document.selection );\n\t *\n\t * // Creates selection at the given position.\n\t * const position = writer.createPositionFromPath( root, path );\n\t * const selection = writer.createSelection( position );\n\t * ```\n\t *\n\t * `Selection`'s constructor allow passing additional options (`backward`, `fake` and `label`) as the last argument.\n\t *\n\t * ```ts\n\t * // Creates backward selection.\n\t * const selection = writer.createSelection( range, { backward: true } );\n\t * ```\n\t *\n\t * Fake selection does not render as browser native selection over selected elements and is hidden to the user.\n\t * This way, no native selection UI artifacts are displayed to the user and selection over elements can be\n\t * represented in other way, for example by applying proper CSS class.\n\t *\n\t * Additionally fake's selection label can be provided. It will be used to describe fake selection in DOM\n\t * (and be  properly handled by screen readers).\n\t *\n\t * ```ts\n\t * // Creates fake selection with label.\n\t * const selection = writer.createSelection( range, { fake: true, label: 'foo' } );\n\t * ```\n\t *\n\t * See also: {@link #createSelection:NODE_OFFSET `createSelection( node, placeOrOffset, options )`}.\n\t *\n\t * @label SELECTABLE\n\t */\n\tpublic createSelection( selectable?: Exclude<Selectable, Node>, options?: SelectionOptions ): Selection;\n\n\tpublic createSelection( ...args: ConstructorParameters<typeof Selection> ): Selection {\n\t\treturn new Selection( ...args );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/utils\n */\n\nimport type { BoxSides, PropertyDescriptor, StyleValue } from '../stylesmap';\n\nconst HEX_COLOR_REGEXP = /^#([0-9a-f]{3,4}|[0-9a-f]{6}|[0-9a-f]{8})$/i;\nconst RGB_COLOR_REGEXP = /^rgb\\([ ]?([0-9]{1,3}[ %]?,[ ]?){2,3}[0-9]{1,3}[ %]?\\)$/i;\nconst RGBA_COLOR_REGEXP = /^rgba\\([ ]?([0-9]{1,3}[ %]?,[ ]?){3}(1|[0-9]+%|[0]?\\.?[0-9]+)\\)$/i;\nconst HSL_COLOR_REGEXP = /^hsl\\([ ]?([0-9]{1,3}[ %]?[,]?[ ]*){3}(1|[0-9]+%|[0]?\\.?[0-9]+)?\\)$/i;\nconst HSLA_COLOR_REGEXP = /^hsla\\([ ]?([0-9]{1,3}[ %]?,[ ]?){2,3}(1|[0-9]+%|[0]?\\.?[0-9]+)\\)$/i;\n\nconst COLOR_NAMES = new Set( [\n\t// CSS Level 1\n\t'black', 'silver', 'gray', 'white', 'maroon', 'red', 'purple', 'fuchsia',\n\t'green', 'lime', 'olive', 'yellow', 'navy', 'blue', 'teal', 'aqua',\n\t// CSS Level 2 (Revision 1)\n\t'orange',\n\t// CSS Color Module Level 3\n\t'aliceblue', 'antiquewhite', 'aquamarine', 'azure', 'beige', 'bisque', 'blanchedalmond', 'blueviolet', 'brown',\n\t'burlywood', 'cadetblue', 'chartreuse', 'chocolate', 'coral', 'cornflowerblue', 'cornsilk', 'crimson', 'cyan',\n\t'darkblue', 'darkcyan', 'darkgoldenrod', 'darkgray', 'darkgreen', 'darkgrey', 'darkkhaki', 'darkmagenta',\n\t'darkolivegreen', 'darkorange', 'darkorchid', 'darkred', 'darksalmon', 'darkseagreen', 'darkslateblue',\n\t'darkslategray', 'darkslategrey', 'darkturquoise', 'darkviolet', 'deeppink', 'deepskyblue', 'dimgray', 'dimgrey',\n\t'dodgerblue', 'firebrick', 'floralwhite', 'forestgreen', 'gainsboro', 'ghostwhite', 'gold', 'goldenrod',\n\t'greenyellow', 'grey', 'honeydew', 'hotpink', 'indianred', 'indigo', 'ivory', 'khaki', 'lavender', 'lavenderblush',\n\t'lawngreen', 'lemonchiffon', 'lightblue', 'lightcoral', 'lightcyan', 'lightgoldenrodyellow', 'lightgray',\n\t'lightgreen', 'lightgrey', 'lightpink', 'lightsalmon', 'lightseagreen', 'lightskyblue', 'lightslategray',\n\t'lightslategrey', 'lightsteelblue', 'lightyellow', 'limegreen', 'linen', 'magenta', 'mediumaquamarine',\n\t'mediumblue', 'mediumorchid', 'mediumpurple', 'mediumseagreen', 'mediumslateblue', 'mediumspringgreen',\n\t'mediumturquoise', 'mediumvioletred', 'midnightblue', 'mintcream', 'mistyrose', 'moccasin', 'navajowhite',\n\t'oldlace', 'olivedrab', 'orangered', 'orchid', 'palegoldenrod', 'palegreen', 'paleturquoise', 'palevioletred',\n\t'papayawhip', 'peachpuff', 'peru', 'pink', 'plum', 'powderblue', 'rosybrown', 'royalblue', 'saddlebrown', 'salmon',\n\t'sandybrown', 'seagreen', 'seashell', 'sienna', 'skyblue', 'slateblue', 'slategray', 'slategrey', 'snow',\n\t'springgreen', 'steelblue', 'tan', 'thistle', 'tomato', 'turquoise', 'violet', 'wheat', 'whitesmoke', 'yellowgreen',\n\t// CSS Color Module Level 3 (System Colors)\n\t'activeborder', 'activecaption', 'appworkspace', 'background', 'buttonface', 'buttonhighlight', 'buttonshadow',\n\t'buttontext', 'captiontext', 'graytext', 'highlight', 'highlighttext', 'inactiveborder', 'inactivecaption',\n\t'inactivecaptiontext', 'infobackground', 'infotext', 'menu', 'menutext', 'scrollbar', 'threeddarkshadow',\n\t'threedface', 'threedhighlight', 'threedlightshadow', 'threedshadow', 'window', 'windowframe', 'windowtext',\n\t// CSS Color Module Level 4\n\t'rebeccapurple',\n\t// Keywords\n\t'currentcolor', 'transparent'\n] );\n\n/**\n * Checks if string contains [color](https://developer.mozilla.org/en-US/docs/Web/CSS/color) CSS value.\n *\n * ```ts\n * isColor( '#f00' );\t\t\t\t\t\t// true\n * isColor( '#AA00BB33' );\t\t\t\t\t// true\n * isColor( 'rgb(0, 0, 250)' );\t\t\t\t// true\n * isColor( 'hsla(240, 100%, 50%, .7)' );\t// true\n * isColor( 'deepskyblue' );\t\t\t\t// true\n * ```\n *\n * **Note**: It does not support CSS Level 4 whitespace syntax, system colors and radius values for HSL colors.\n */\nexport function isColor( string: string ): boolean {\n\t// As far as I was able to test checking some pre-conditions is faster than joining each test with ||.\n\tif ( string.startsWith( '#' ) ) {\n\t\treturn HEX_COLOR_REGEXP.test( string );\n\t}\n\n\tif ( string.startsWith( 'rgb' ) ) {\n\t\treturn RGB_COLOR_REGEXP.test( string ) || RGBA_COLOR_REGEXP.test( string );\n\t}\n\n\tif ( string.startsWith( 'hsl' ) ) {\n\t\treturn HSL_COLOR_REGEXP.test( string ) || HSLA_COLOR_REGEXP.test( string );\n\t}\n\n\t// Array check > RegExp test.\n\treturn COLOR_NAMES.has( string.toLowerCase() );\n}\n\nconst lineStyleValues = [ 'none', 'hidden', 'dotted', 'dashed', 'solid', 'double', 'groove', 'ridge', 'inset', 'outset' ];\n\n/**\n * Checks if string contains [line style](https://developer.mozilla.org/en-US/docs/Web/CSS/border-style) CSS value.\n */\nexport function isLineStyle( string: string ): boolean {\n\treturn lineStyleValues.includes( string );\n}\n\nconst lengthRegExp = /^([+-]?[0-9]*([.][0-9]+)?(px|cm|mm|in|pc|pt|ch|em|ex|rem|vh|vw|vmin|vmax)|0)$/;\n\n/**\n * Checks if string contains [length](https://developer.mozilla.org/en-US/docs/Web/CSS/length) CSS value.\n */\nexport function isLength( string: string ): boolean {\n\treturn lengthRegExp.test( string );\n}\n\nconst PERCENTAGE_VALUE_REGEXP = /^[+-]?[0-9]*([.][0-9]+)?%$/;\n\n/**\n * Checks if string contains [percentage](https://developer.mozilla.org/en-US/docs/Web/CSS/percentage) CSS value.\n */\nexport function isPercentage( string: string ): boolean {\n\treturn PERCENTAGE_VALUE_REGEXP.test( string );\n}\n\nconst repeatValues = [ 'repeat-x', 'repeat-y', 'repeat', 'space', 'round', 'no-repeat' ];\n\n/**\n * Checks if string contains [background repeat](https://developer.mozilla.org/en-US/docs/Web/CSS/background-repeat) CSS value.\n */\nexport function isRepeat( string: string ): boolean {\n\treturn repeatValues.includes( string );\n}\n\nconst positionValues = [ 'center', 'top', 'bottom', 'left', 'right' ];\n\n/**\n * Checks if string contains [background position](https://developer.mozilla.org/en-US/docs/Web/CSS/background-position) CSS value.\n */\nexport function isPosition( string: string ): boolean {\n\treturn positionValues.includes( string );\n}\n\nconst attachmentValues = [ 'fixed', 'scroll', 'local' ];\n\n/**\n * Checks if string contains [background attachment](https://developer.mozilla.org/en-US/docs/Web/CSS/background-attachment) CSS value.\n */\nexport function isAttachment( string: string ): boolean {\n\treturn attachmentValues.includes( string );\n}\n\nconst urlRegExp = /^url\\(/;\n\n/**\n * Checks if string contains [URL](https://developer.mozilla.org/en-US/docs/Web/CSS/url) CSS value.\n */\nexport function isURL( string: string ): boolean {\n\treturn urlRegExp.test( string );\n}\n\n/**\n * Parses box sides as individual values.\n */\nexport function getBoxSidesValues( value: string = '' ): BoxSides {\n\tif ( value === '' ) {\n\t\treturn { top: undefined, right: undefined, bottom: undefined, left: undefined };\n\t}\n\n\tconst values = getShorthandValues( value );\n\n\tconst top = values[ 0 ];\n\tconst bottom = values[ 2 ] || top;\n\tconst right = values[ 1 ] || top;\n\tconst left = values[ 3 ] || right;\n\n\treturn { top, bottom, right, left };\n}\n\n/**\n * Default reducer for CSS properties that concerns edges of a box\n * [shorthand](https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties) notations:\n *\n * ```ts\n * stylesProcessor.setReducer( 'padding', getBoxSidesValueReducer( 'padding' ) );\n * ```\n */\nexport function getBoxSidesValueReducer( styleShorthand: string ) {\n\treturn ( value: StyleValue ): Array<PropertyDescriptor> => {\n\t\tconst { top, right, bottom, left } = value as BoxSides;\n\n\t\tconst reduced: Array<PropertyDescriptor> = [];\n\n\t\tif ( ![ top, right, left, bottom ].every( value => !!value ) ) {\n\t\t\tif ( top ) {\n\t\t\t\treduced.push( [ styleShorthand + '-top', top ] );\n\t\t\t}\n\n\t\t\tif ( right ) {\n\t\t\t\treduced.push( [ styleShorthand + '-right', right ] );\n\t\t\t}\n\n\t\t\tif ( bottom ) {\n\t\t\t\treduced.push( [ styleShorthand + '-bottom', bottom ] );\n\t\t\t}\n\n\t\t\tif ( left ) {\n\t\t\t\treduced.push( [ styleShorthand + '-left', left ] );\n\t\t\t}\n\t\t} else {\n\t\t\treduced.push( [ styleShorthand, getBoxSidesShorthandValue( value as BoxSides ) ] );\n\t\t}\n\n\t\treturn reduced;\n\t};\n}\n\n/**\n * Returns a [shorthand](https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties) notation\n * of a CSS property value.\n *\n * ```ts\n * getBoxSidesShorthandValue( { top: '1px', right: '1px', bottom: '2px', left: '1px' } );\n * // will return '1px 1px 2px'\n * ```\n */\nexport function getBoxSidesShorthandValue( { top, right, bottom, left }: BoxSides ): string {\n\tconst out = [];\n\n\tif ( left !== right ) {\n\t\tout.push( top, right, bottom, left );\n\t} else if ( bottom !== top ) {\n\t\tout.push( top, right, bottom );\n\t} else if ( right !== top ) {\n\t\tout.push( top, right );\n\t} else {\n\t\tout.push( top );\n\t}\n\n\treturn out.join( ' ' );\n}\n\n/**\n * Creates a normalizer for a [shorthand](https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties) 1-to-4 value.\n *\n * ```ts\n * stylesProcessor.setNormalizer( 'margin', getPositionShorthandNormalizer( 'margin' ) );\n * ```\n */\nexport function getPositionShorthandNormalizer( shorthand: string ) {\n\treturn ( value: string ): { path: string; value: BoxSides } => {\n\t\treturn {\n\t\t\tpath: shorthand,\n\t\t\tvalue: getBoxSidesValues( value )\n\t\t};\n\t};\n}\n\n/**\n * Parses parts of a 1-to-4 value notation - handles some CSS values with spaces (like RGB()).\n *\n * ```ts\n * getShorthandValues( 'red blue RGB(0, 0, 0)');\n * // will return [ 'red', 'blue', 'RGB(0, 0, 0)' ]\n * ```\n */\nexport function getShorthandValues( string: string ): Array<string> {\n\treturn string\n\t\t.replace( /, /g, ',' ) // Exclude comma from spaces evaluation as values are separated by spaces.\n\t\t.split( ' ' )\n\t\t.map( string => string.replace( /,/g, ', ' ) ); // Restore original notation.\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/background\n */\n\nimport type { StylesProcessor, PropertyDescriptor, Styles, Normalizer, Reducer } from '../stylesmap';\nimport { getShorthandValues, isAttachment, isColor, isPosition, isRepeat, isURL } from './utils';\n\n/**\n * Adds a background CSS styles processing rules.\n *\n * ```ts\n * editor.data.addStyleProcessorRules( addBackgroundRules );\n * ```\n *\n * The normalized value is stored as:\n *\n * ```ts\n * const styles = {\n * \tbackground: {\n * \t\tcolor,\n * \t\trepeat,\n * \t\tposition,\n * \t\tattachment,\n * \t\timage\n * \t}\n * };\n * ````\n *\n * **Note**: Currently only `'background-color'` longhand value is parsed besides `'background'` shorthand. The reducer also supports only\n * `'background-color'` value.\n */\nexport function addBackgroundRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'background', getBackgroundNormalizer() );\n\tstylesProcessor.setNormalizer( 'background-color', getBackgroundColorNormalizer() );\n\tstylesProcessor.setReducer( 'background', getBackgroundReducer() );\n\n\tstylesProcessor.setStyleRelation( 'background', [ 'background-color' ] );\n}\n\nfunction getBackgroundNormalizer(): Normalizer {\n\treturn value => {\n\t\tconst background: {\n\t\t\trepeat?: Array<string>;\n\t\t\tposition?: Array<string>;\n\t\t\tattachment?: string;\n\t\t\tcolor?: string;\n\t\t\timage?: string;\n\t\t} = {};\n\n\t\tconst parts = getShorthandValues( value );\n\n\t\tfor ( const part of parts ) {\n\t\t\tif ( isRepeat( part ) ) {\n\t\t\t\tbackground.repeat = background.repeat || [];\n\n\t\t\t\tbackground.repeat.push( part );\n\t\t\t} else if ( isPosition( part ) ) {\n\t\t\t\tbackground.position = background.position || [];\n\n\t\t\t\tbackground.position.push( part );\n\t\t\t} else if ( isAttachment( part ) ) {\n\t\t\t\tbackground.attachment = part;\n\t\t\t} else if ( isColor( part ) ) {\n\t\t\t\tbackground.color = part;\n\t\t\t} else if ( isURL( part ) ) {\n\t\t\t\tbackground.image = part;\n\t\t\t}\n\t\t}\n\n\t\treturn {\n\t\t\tpath: 'background',\n\t\t\tvalue: background\n\t\t};\n\t};\n}\n\nfunction getBackgroundColorNormalizer(): Normalizer {\n\treturn value => ( { path: 'background.color', value } );\n}\n\nfunction getBackgroundReducer(): Reducer {\n\treturn value => {\n\t\tconst ret: Array<PropertyDescriptor> = [];\n\n\t\tret.push( [ 'background-color', ( value as Styles ).color as string ] );\n\n\t\treturn ret;\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/border\n */\n\nimport type { BoxSides, Extractor, Normalizer, Reducer, StylesProcessor, Styles, StyleValue, PropertyDescriptor } from '../stylesmap';\nimport { getShorthandValues, getBoxSidesValueReducer, getBoxSidesValues, isLength, isLineStyle } from './utils';\n\n/**\n * Adds a border CSS styles processing rules.\n *\n * ```ts\n * editor.data.addStyleProcessorRules( addBorderRules );\n * ```\n *\n * This rules merges all [border](https://developer.mozilla.org/en-US/docs/Web/CSS/border) styles notation shorthands:\n *\n * - border\n * - border-top\n * - border-right\n * - border-bottom\n * - border-left\n * - border-color\n * - border-style\n * - border-width\n *\n * and all corresponding longhand forms (like `border-top-color`, `border-top-style`, etc).\n *\n * It does not handle other shorthands (like `border-radius` or `border-image`).\n *\n * The normalized model stores border values as:\n *\n * ```ts\n * const styles = {\n * \tborder: {\n * \t\tcolor: { top, right, bottom, left },\n * \t\tstyle: { top, right, bottom, left },\n * \t\twidth: { top, right, bottom, left },\n * \t}\n * };\n * ```\n */\nexport function addBorderRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'border', getBorderNormalizer() );\n\n\t// Border-position shorthands.\n\tstylesProcessor.setNormalizer( 'border-top', getBorderPositionNormalizer( 'top' ) );\n\tstylesProcessor.setNormalizer( 'border-right', getBorderPositionNormalizer( 'right' ) );\n\tstylesProcessor.setNormalizer( 'border-bottom', getBorderPositionNormalizer( 'bottom' ) );\n\tstylesProcessor.setNormalizer( 'border-left', getBorderPositionNormalizer( 'left' ) );\n\n\t// Border-property shorthands.\n\tstylesProcessor.setNormalizer( 'border-color', getBorderPropertyNormalizer( 'color' ) );\n\tstylesProcessor.setNormalizer( 'border-width', getBorderPropertyNormalizer( 'width' ) );\n\tstylesProcessor.setNormalizer( 'border-style', getBorderPropertyNormalizer( 'style' ) );\n\n\t// Border longhands.\n\tstylesProcessor.setNormalizer( 'border-top-color', getBorderPropertyPositionNormalizer( 'color', 'top' ) );\n\tstylesProcessor.setNormalizer( 'border-top-style', getBorderPropertyPositionNormalizer( 'style', 'top' ) );\n\tstylesProcessor.setNormalizer( 'border-top-width', getBorderPropertyPositionNormalizer( 'width', 'top' ) );\n\n\tstylesProcessor.setNormalizer( 'border-right-color', getBorderPropertyPositionNormalizer( 'color', 'right' ) );\n\tstylesProcessor.setNormalizer( 'border-right-style', getBorderPropertyPositionNormalizer( 'style', 'right' ) );\n\tstylesProcessor.setNormalizer( 'border-right-width', getBorderPropertyPositionNormalizer( 'width', 'right' ) );\n\n\tstylesProcessor.setNormalizer( 'border-bottom-color', getBorderPropertyPositionNormalizer( 'color', 'bottom' ) );\n\tstylesProcessor.setNormalizer( 'border-bottom-style', getBorderPropertyPositionNormalizer( 'style', 'bottom' ) );\n\tstylesProcessor.setNormalizer( 'border-bottom-width', getBorderPropertyPositionNormalizer( 'width', 'bottom' ) );\n\n\tstylesProcessor.setNormalizer( 'border-left-color', getBorderPropertyPositionNormalizer( 'color', 'left' ) );\n\tstylesProcessor.setNormalizer( 'border-left-style', getBorderPropertyPositionNormalizer( 'style', 'left' ) );\n\tstylesProcessor.setNormalizer( 'border-left-width', getBorderPropertyPositionNormalizer( 'width', 'left' ) );\n\n\tstylesProcessor.setExtractor( 'border-top', getBorderPositionExtractor( 'top' ) );\n\tstylesProcessor.setExtractor( 'border-right', getBorderPositionExtractor( 'right' ) );\n\tstylesProcessor.setExtractor( 'border-bottom', getBorderPositionExtractor( 'bottom' ) );\n\tstylesProcessor.setExtractor( 'border-left', getBorderPositionExtractor( 'left' ) );\n\n\tstylesProcessor.setExtractor( 'border-top-color', 'border.color.top' );\n\tstylesProcessor.setExtractor( 'border-right-color', 'border.color.right' );\n\tstylesProcessor.setExtractor( 'border-bottom-color', 'border.color.bottom' );\n\tstylesProcessor.setExtractor( 'border-left-color', 'border.color.left' );\n\n\tstylesProcessor.setExtractor( 'border-top-width', 'border.width.top' );\n\tstylesProcessor.setExtractor( 'border-right-width', 'border.width.right' );\n\tstylesProcessor.setExtractor( 'border-bottom-width', 'border.width.bottom' );\n\tstylesProcessor.setExtractor( 'border-left-width', 'border.width.left' );\n\n\tstylesProcessor.setExtractor( 'border-top-style', 'border.style.top' );\n\tstylesProcessor.setExtractor( 'border-right-style', 'border.style.right' );\n\tstylesProcessor.setExtractor( 'border-bottom-style', 'border.style.bottom' );\n\tstylesProcessor.setExtractor( 'border-left-style', 'border.style.left' );\n\n\tstylesProcessor.setReducer( 'border-color', getBoxSidesValueReducer( 'border-color' ) );\n\tstylesProcessor.setReducer( 'border-style', getBoxSidesValueReducer( 'border-style' ) );\n\tstylesProcessor.setReducer( 'border-width', getBoxSidesValueReducer( 'border-width' ) );\n\tstylesProcessor.setReducer( 'border-top', getBorderPositionReducer( 'top' ) );\n\tstylesProcessor.setReducer( 'border-right', getBorderPositionReducer( 'right' ) );\n\tstylesProcessor.setReducer( 'border-bottom', getBorderPositionReducer( 'bottom' ) );\n\tstylesProcessor.setReducer( 'border-left', getBorderPositionReducer( 'left' ) );\n\tstylesProcessor.setReducer( 'border', getBorderReducer() );\n\n\tstylesProcessor.setStyleRelation( 'border', [\n\t\t'border-color', 'border-style', 'border-width',\n\t\t'border-top', 'border-right', 'border-bottom', 'border-left',\n\t\t'border-top-color', 'border-right-color', 'border-bottom-color', 'border-left-color',\n\t\t'border-top-style', 'border-right-style', 'border-bottom-style', 'border-left-style',\n\t\t'border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width'\n\t] );\n\n\tstylesProcessor.setStyleRelation( 'border-color', [\n\t\t'border-top-color', 'border-right-color', 'border-bottom-color', 'border-left-color'\n\t] );\n\tstylesProcessor.setStyleRelation( 'border-style', [\n\t\t'border-top-style', 'border-right-style', 'border-bottom-style', 'border-left-style'\n\t] );\n\tstylesProcessor.setStyleRelation( 'border-width', [\n\t\t'border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width'\n\t] );\n\n\tstylesProcessor.setStyleRelation( 'border-top', [ 'border-top-color', 'border-top-style', 'border-top-width' ] );\n\tstylesProcessor.setStyleRelation( 'border-right', [ 'border-right-color', 'border-right-style', 'border-right-width' ] );\n\tstylesProcessor.setStyleRelation( 'border-bottom', [ 'border-bottom-color', 'border-bottom-style', 'border-bottom-width' ] );\n\tstylesProcessor.setStyleRelation( 'border-left', [ 'border-left-color', 'border-left-style', 'border-left-width' ] );\n}\n\nfunction getBorderNormalizer(): Normalizer {\n\treturn value => {\n\t\tconst { color, style, width } = normalizeBorderShorthand( value );\n\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: {\n\t\t\t\tcolor: getBoxSidesValues( color ),\n\t\t\t\tstyle: getBoxSidesValues( style ),\n\t\t\t\twidth: getBoxSidesValues( width )\n\t\t\t}\n\t\t};\n\t};\n}\n\nfunction getBorderPositionNormalizer( side: string ): Normalizer {\n\treturn value => {\n\t\tconst { color, style, width } = normalizeBorderShorthand( value );\n\n\t\tconst border: Record<string, StyleValue> = {};\n\n\t\tif ( color !== undefined ) {\n\t\t\tborder.color = { [ side ]: color };\n\t\t}\n\n\t\tif ( style !== undefined ) {\n\t\t\tborder.style = { [ side ]: style };\n\t\t}\n\n\t\tif ( width !== undefined ) {\n\t\t\tborder.width = { [ side ]: width };\n\t\t}\n\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: border\n\t\t};\n\t};\n}\n\nfunction getBorderPropertyNormalizer( propertyName: string ): Normalizer {\n\treturn value => {\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: toBorderPropertyShorthand( value, propertyName )\n\t\t};\n\t};\n}\n\nfunction toBorderPropertyShorthand( value: string, property: string ): Record<string, BoxSides> {\n\treturn {\n\t\t[ property ]: getBoxSidesValues( value )\n\t};\n}\n\nfunction getBorderPropertyPositionNormalizer( property: string, side: keyof BoxSides ): Normalizer {\n\treturn value => {\n\t\treturn {\n\t\t\tpath: 'border',\n\t\t\tvalue: {\n\t\t\t\t[ property ]: {\n\t\t\t\t\t[ side ]: value\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t};\n}\n\nfunction getBorderPositionExtractor( which: string ): Extractor {\n\treturn ( name, styles ) => {\n\t\tif ( styles.border ) {\n\t\t\treturn extractBorderPosition( styles.border, which );\n\t\t}\n\t};\n}\n\nfunction extractBorderPosition( border: any, which: string ) {\n\tconst value: StyleValue = {};\n\n\tif ( border.width && border.width[ which ] ) {\n\t\tvalue.width = border.width[ which ];\n\t}\n\n\tif ( border.style && border.style[ which ] ) {\n\t\tvalue.style = border.style[ which ];\n\t}\n\n\tif ( border.color && border.color[ which ] ) {\n\t\tvalue.color = border.color[ which ];\n\t}\n\n\treturn value;\n}\n\nfunction normalizeBorderShorthand( string: string ) {\n\tconst result: {\n\t\twidth?: string;\n\t\tstyle?: string;\n\t\tcolor?: string;\n\t} = {};\n\n\tconst parts = getShorthandValues( string );\n\n\tfor ( const part of parts ) {\n\t\tif ( isLength( part ) || /thin|medium|thick/.test( part ) ) {\n\t\t\tresult.width = part;\n\t\t} else if ( isLineStyle( part ) ) {\n\t\t\tresult.style = part;\n\t\t} else {\n\t\t\tresult.color = part;\n\t\t}\n\t}\n\n\treturn result;\n}\n\n/**\n * The border reducer factory.\n *\n * It tries to produce the most optimal output for the specified styles.\n *\n * For a border style:\n *\n * ```css\n * style: {top: \"solid\", bottom: \"solid\", right: \"solid\", left: \"solid\"}\n * ```\n *\n * It will produce: `border-style: solid`.\n * For a border style and color:\n *\n * ```css\n * color: {top: \"#ff0\", bottom: \"#ff0\", right: \"#ff0\", left: \"#ff0\"}\n * style: {top: \"solid\", bottom: \"solid\", right: \"solid\", left: \"solid\"}\n * ```\n *\n * It will produce: `border-color: #ff0; border-style: solid`.\n * If all border parameters are specified:\n *\n * ```css\n * color: {top: \"#ff0\", bottom: \"#ff0\", right: \"#ff0\", left: \"#ff0\"}\n * style: {top: \"solid\", bottom: \"solid\", right: \"solid\", left: \"solid\"}\n * width: {top: \"2px\", bottom: \"2px\", right: \"2px\", left: \"2px\"}\n * ```\n *\n * It will combine everything into a single property: `border: 2px solid #ff0`.\n *\n * The definitions are merged only if all border selectors have the same values.\n */\nfunction getBorderReducer(): Reducer {\n\treturn value => {\n\t\tconst topStyles = extractBorderPosition( value, 'top' );\n\t\tconst rightStyles = extractBorderPosition( value, 'right' );\n\t\tconst bottomStyles = extractBorderPosition( value, 'bottom' );\n\t\tconst leftStyles = extractBorderPosition( value, 'left' );\n\n\t\tconst borderStyles = [ topStyles, rightStyles, bottomStyles, leftStyles ];\n\n\t\tconst borderStylesByType = {\n\t\t\twidth: getReducedStyleValueForType( borderStyles, 'width' ),\n\t\t\tstyle: getReducedStyleValueForType( borderStyles, 'style' ),\n\t\t\tcolor: getReducedStyleValueForType( borderStyles, 'color' )\n\t\t};\n\n\t\t// Try reducing to a single `border:` property.\n\t\tconst reducedBorderStyle = reduceBorderPosition( borderStylesByType, 'all' );\n\n\t\tif ( reducedBorderStyle.length ) {\n\t\t\treturn reducedBorderStyle;\n\t\t}\n\n\t\t// Try reducing to `border-style:`, `border-width:`, `border-color:` properties.\n\t\tconst reducedStyleTypes = Object.entries( borderStylesByType ).reduce( ( reducedStyleTypes, [ type, value ] ) => {\n\t\t\tif ( value ) {\n\t\t\t\treducedStyleTypes.push( [ `border-${ type }`, value ] );\n\n\t\t\t\t// Remove it from the full set to not include it in the most specific properties later.\n\t\t\t\tborderStyles.forEach( style => delete style[ type ] );\n\t\t\t}\n\n\t\t\treturn reducedStyleTypes;\n\t\t}, [] as Array<PropertyDescriptor> );\n\n\t\t// The reduced properties (by type) and all that remains that could not be reduced.\n\t\treturn [\n\t\t\t...reducedStyleTypes,\n\t\t\t...reduceBorderPosition( topStyles, 'top' ),\n\t\t\t...reduceBorderPosition( rightStyles, 'right' ),\n\t\t\t...reduceBorderPosition( bottomStyles, 'bottom' ),\n\t\t\t...reduceBorderPosition( leftStyles, 'left' )\n\t\t];\n\t};\n\n\t/**\n\t * @param styles The array of objects with `style`, `color`, `width` properties.\n\t */\n\tfunction getReducedStyleValueForType( styles: Array<Styles>, type: 'width' | 'style' | 'color' ) {\n\t\treturn styles\n\t\t\t.map( style => style[ type ] as any )\n\t\t\t.reduce( ( result, style ) => result == style ? result : null );\n\t}\n}\n\nfunction getBorderPositionReducer( which: keyof BoxSides | 'all' ): Reducer {\n\treturn value => reduceBorderPosition( value, which );\n}\n\n/**\n * Returns an array with reduced border styles depending on the specified values.\n *\n * If all border properties (width, style, color) are specified, the returned selector will be\n * merged into a group: `border-*: [width] [style] [color]`.\n *\n * Otherwise, the specific definitions will be returned: `border-(width|style|color)-*: [value]`.\n *\n * @param value Styles if defined.\n * @param which The border position.\n */\nfunction reduceBorderPosition( value: any, which: keyof BoxSides | 'all' ): Array<PropertyDescriptor> {\n\tconst borderTypes = [];\n\n\tif ( value && ( value.width ) ) {\n\t\tborderTypes.push( 'width' );\n\t}\n\n\tif ( value && ( value.style ) ) {\n\t\tborderTypes.push( 'style' );\n\t}\n\n\tif ( value && ( value.color ) ) {\n\t\tborderTypes.push( 'color' );\n\t}\n\n\tif ( borderTypes.length == 3 ) {\n\t\tconst borderValue = borderTypes.map( item => value[ item ] ).join( ' ' );\n\n\t\treturn [\n\t\t\twhich == 'all' ? [ 'border', borderValue ] : [ `border-${ which }`, borderValue ]\n\t\t];\n\t}\n\n\t// We are unable to reduce to a single `border:` property.\n\tif ( which == 'all' ) {\n\t\treturn [];\n\t}\n\n\treturn borderTypes.map( type => {\n\t\treturn [ `border-${ which }-${ type }`, value[ type ] as string ];\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/margin\n */\n\nimport type { StylesProcessor } from '../stylesmap';\nimport { getPositionShorthandNormalizer, getBoxSidesValueReducer } from './utils';\n\n/**\n * Adds a margin CSS styles processing rules.\n *\n * ```ts\n * editor.data.addStyleProcessorRules( addMarginRules );\n * ```\n *\n * The normalized value is stored as:\n *\n * ```ts\n * const styles = {\n * \tmargin: {\n * \t\ttop,\n * \t\tright,\n * \t\tbottom,\n * \t\tleft\n * \t}\n * };\n * ```\n */\nexport function addMarginRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'margin', getPositionShorthandNormalizer( 'margin' ) );\n\n\tstylesProcessor.setNormalizer( 'margin-top', value => ( { path: 'margin.top', value } ) );\n\tstylesProcessor.setNormalizer( 'margin-right', value => ( { path: 'margin.right', value } ) );\n\tstylesProcessor.setNormalizer( 'margin-bottom', value => ( { path: 'margin.bottom', value } ) );\n\tstylesProcessor.setNormalizer( 'margin-left', value => ( { path: 'margin.left', value } ) );\n\n\tstylesProcessor.setReducer( 'margin', getBoxSidesValueReducer( 'margin' ) );\n\n\tstylesProcessor.setStyleRelation( 'margin', [ 'margin-top', 'margin-right', 'margin-bottom', 'margin-left' ] );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module engine/view/styles/padding\n */\n\nimport type { StylesProcessor } from '../stylesmap';\nimport { getPositionShorthandNormalizer, getBoxSidesValueReducer } from './utils';\n\n/**\n * Adds a margin CSS styles processing rules.\n *\n * ```ts\n * editor.data.addStyleProcessorRules( addPaddingRules );\n * ```\n *\n * The normalized value is stored as:\n *\n * ```ts\n * const styles = {\n * \tpadding: {\n * \t\ttop,\n * \t\tright,\n * \t\tbottom,\n * \t\tleft\n * \t}\n * };\n * ```\n */\nexport function addPaddingRules( stylesProcessor: StylesProcessor ): void {\n\tstylesProcessor.setNormalizer( 'padding', getPositionShorthandNormalizer( 'padding' ) );\n\tstylesProcessor.setNormalizer( 'padding-top', value => ( { path: 'padding.top', value } ) );\n\tstylesProcessor.setNormalizer( 'padding-right', value => ( { path: 'padding.right', value } ) );\n\tstylesProcessor.setNormalizer( 'padding-bottom', value => ( { path: 'padding.bottom', value } ) );\n\tstylesProcessor.setNormalizer( 'padding-left', value => ( { path: 'padding.left', value } ) );\n\n\tstylesProcessor.setReducer( 'padding', getBoxSidesValueReducer( 'padding' ) );\n\n\tstylesProcessor.setStyleRelation( 'padding', [ 'padding-top', 'padding-right', 'padding-bottom', 'padding-left' ] );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/commandcollection\n */\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\nimport type Command from './command';\n\n/**\n * Collection of commands. Its instance is available in {@link module:core/editor/editor~Editor#commands `editor.commands`}.\n */\nexport default class CommandCollection implements Iterable<[ string, Command ]> {\n\t/**\n\t * Command map.\n\t */\n\tprivate _commands: Map<string, Command>;\n\n\t/**\n\t * Creates collection instance.\n\t */\n\tconstructor() {\n\t\tthis._commands = new Map();\n\t}\n\n\t/**\n\t * Registers a new command.\n\t *\n\t * @param commandName The name of the command.\n\t */\n\tpublic add<TName extends string>(\n\t\tcommandName: TName,\n\t\tcommand: CommandsMap[ TName ]\n\t): void {\n\t\tthis._commands.set( commandName, command );\n\t}\n\n\t/**\n\t * Retrieves a command from the collection.\n\t *\n\t * @param commandName The name of the command.\n\t */\n\tpublic get<TName extends string>( commandName: TName ): CommandsMap[ TName ] | undefined {\n\t\treturn this._commands.get( commandName );\n\t}\n\n\t/**\n\t * Executes a command.\n\t *\n\t * @param commandName The name of the command.\n\t * @param commandParams Command parameters.\n\t * @returns The value returned by the {@link module:core/command~Command#execute `command.execute()`}.\n\t */\n\tpublic execute<TName extends string>(\n\t\tcommandName: TName,\n\t\t...commandParams: Parameters<CommandsMap[ TName ][ 'execute' ]>\n\t): ReturnType<CommandsMap[ TName ][ 'execute' ]> {\n\t\tconst command = this.get( commandName );\n\n\t\tif ( !command ) {\n\t\t\t/**\n\t\t\t * Command does not exist.\n\t\t\t *\n\t\t\t * @error commandcollection-command-not-found\n\t\t\t * @param commandName Name of the command.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'commandcollection-command-not-found', this, { commandName } );\n\t\t}\n\n\t\treturn command.execute( ...commandParams ) as any;\n\t}\n\n\t/**\n\t * Returns iterator of command names.\n\t */\n\tpublic* names(): IterableIterator<string> {\n\t\tyield* this._commands.keys();\n\t}\n\n\t/**\n\t * Returns iterator of command instances.\n\t */\n\tpublic* commands(): IterableIterator<Command> {\n\t\tyield* this._commands.values();\n\t}\n\n\t/**\n\t * Iterable interface.\n\t *\n\t * Returns `[ commandName, commandInstance ]` pairs.\n\t */\n\tpublic [ Symbol.iterator ](): Iterator<[ string, Command ]> {\n\t\treturn this._commands[ Symbol.iterator ]();\n\t}\n\n\t/**\n\t * Destroys all collection commands.\n\t */\n\tpublic destroy(): void {\n\t\tfor ( const command of this.commands() ) {\n\t\t\tcommand.destroy();\n\t\t}\n\t}\n}\n\n/**\n * Helper type that maps command names to their types.\n * It is meant to be extended with module augmentation.\n *\n * ```ts\n * class MyCommand extends Command {\n * \tpublic execute( parameter: A ): B {\n * \t\t// ...\n * \t}\n * }\n *\n * declare module '@ckeditor/ckeditor5-core' {\n * \tinterface CommandsMap {\n * \t\tmyCommand: MyCommand;\n * \t}\n * }\n *\n * // Returns `MyCommand | undefined`.\n * const myCommand = editor.commands.get( 'myCommand' );\n *\n * // Expects `A` type as parameter and returns `B`.\n * const value = editor.commands.execute( 'myCommand', new A() );\n * ```\n */\nexport interface CommandsMap {\n\t[ name: string ]: Command;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editor/editor\n */\n\nimport {\n\tConfig,\n\tCKEditorError,\n\tObservableMixin,\n\ttype Locale,\n\ttype LocaleTranslate,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tConversion,\n\tDataController,\n\tEditingController,\n\tModel,\n\tStylesProcessor\n} from '@ckeditor/ckeditor5-engine';\n\nimport type { EditorUI } from '@ckeditor/ckeditor5-ui';\n\nimport Context from '../context';\nimport PluginCollection from '../plugincollection';\nimport CommandCollection, { type CommandsMap } from '../commandcollection';\nimport EditingKeystrokeHandler from '../editingkeystrokehandler';\n\nimport type { LoadedPlugins, PluginConstructor } from '../plugin';\nimport type { EditorConfig } from './editorconfig';\n\n/**\n * The class representing a basic, generic editor.\n *\n * Check out the list of its subclasses to learn about specific editor implementations.\n *\n * All editor implementations (like {@link module:editor-classic/classiceditor~ClassicEditor} or\n * {@link module:editor-inline/inlineeditor~InlineEditor}) should extend this class. They can add their\n * own methods and properties.\n *\n * When you are implementing a plugin, this editor represents the API\n * which your plugin can expect to get when using its {@link module:core/plugin~Plugin#editor} property.\n *\n * This API should be sufficient in order to implement the \"editing\" part of your feature\n * (schema definition, conversion, commands, keystrokes, etc.).\n * It does not define the editor UI, which is available only if\n * the specific editor implements also the {@link ~Editor#ui} property\n * (as most editor implementations do).\n */\nexport default abstract class Editor extends ObservableMixin() {\n\t/**\n\t * Commands registered to the editor.\n\t *\n\t * Use the shorthand {@link #execute `editor.execute()`} method to execute commands:\n\t *\n\t * ```ts\n\t * // Execute the bold command:\n\t * editor.execute( 'bold' );\n\t *\n\t * // Check the state of the bold command:\n\t * editor.commands.get( 'bold' ).value;\n\t * ```\n\t */\n\tpublic readonly commands: CommandCollection;\n\n\t/**\n\t * Stores all configurations specific to this editor instance.\n\t *\n\t * ```ts\n\t * editor.config.get( 'image.toolbar' );\n\t * // -> [ 'imageStyle:block', 'imageStyle:side', '|', 'toggleImageCaption', 'imageTextAlternative' ]\n\t * ```\n\t */\n\tpublic readonly config: Config<EditorConfig>;\n\n\t/**\n\t * Conversion manager through which you can register model-to-view and view-to-model converters.\n\t *\n\t * See the {@link module:engine/conversion/conversion~Conversion} documentation to learn how to add converters.\n\t */\n\tpublic readonly conversion: Conversion;\n\n\t/**\n\t * The {@link module:engine/controller/datacontroller~DataController data controller}.\n\t * Used e.g. for setting and retrieving the editor data.\n\t */\n\tpublic readonly data: DataController;\n\n\t/**\n\t * The {@link module:engine/controller/editingcontroller~EditingController editing controller}.\n\t * Controls user input and rendering the content for editing.\n\t */\n\tpublic readonly editing: EditingController;\n\n\t/**\n\t * The locale instance.\n\t */\n\tpublic readonly locale: Locale;\n\n\t/**\n\t * The editor's model.\n\t *\n\t * The central point of the editor's abstract data model.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * The plugins loaded and in use by this editor instance.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'ClipboardPipeline' ); // -> An instance of the clipboard pipeline plugin.\n\t * ```\n\t */\n\tpublic readonly plugins: PluginCollection<Editor>;\n\n\t/**\n\t * An instance of the {@link module:core/editingkeystrokehandler~EditingKeystrokeHandler}.\n\t *\n\t * It allows setting simple keystrokes:\n\t *\n\t * ```ts\n\t * // Execute the bold command on Ctrl+E:\n\t * editor.keystrokes.set( 'Ctrl+E', 'bold' );\n\t *\n\t * // Execute your own callback:\n\t * editor.keystrokes.set( 'Ctrl+E', ( data, cancel ) => {\n\t * \tconsole.log( data.keyCode );\n\t *\n\t * \t// Prevent the default (native) action and stop the underlying keydown event\n\t * \t// so no other editor feature will interfere.\n\t * \tcancel();\n\t * } );\n\t * ```\n\t *\n\t * Note: Certain typing-oriented keystrokes (like <kbd>Backspace</kbd> or <kbd>Enter</kbd>) are handled\n\t * by a low-level mechanism and trying to listen to them via the keystroke handler will not work reliably.\n\t * To handle these specific keystrokes, see the events fired by the\n\t * {@link module:engine/view/document~Document editing view document} (`editor.editing.view.document`).\n\t */\n\tpublic readonly keystrokes: EditingKeystrokeHandler;\n\n\t/**\n\t * Shorthand for {@link module:utils/locale~Locale#t}.\n\t *\n\t * @see module:utils/locale~Locale#t\n\t */\n\tpublic readonly t: LocaleTranslate;\n\n\tpublic declare readonly id: string;\n\n\t/**\n\t * Indicates the editor life-cycle state.\n\t *\n\t * The editor is in one of the following states:\n\t *\n\t * * `initializing` &ndash; During the editor initialization (before\n\t * {@link module:core/editor/editor~Editor.create `Editor.create()`}) finished its job.\n\t * * `ready` &ndash; After the promise returned by the {@link module:core/editor/editor~Editor.create `Editor.create()`}\n\t * method is resolved.\n\t * * `destroyed` &ndash; Once the {@link #destroy `editor.destroy()`} method was called.\n\t *\n\t * @observable\n\t */\n\tpublic declare state: 'initializing' | 'ready' | 'destroyed';\n\n\t/**\n\t * The default configuration which is built into the editor class.\n\t *\n\t * It is used in CKEditor 5 builds to provide the default configuration options which are later used during the editor initialization.\n\t *\n\t * ```ts\n\t * ClassicEditor.defaultConfig = {\n\t * \tfoo: 1,\n\t * \tbar: 2\n\t * };\n\t *\n\t * ClassicEditor\n\t * \t.create( sourceElement )\n\t * \t.then( editor => {\n\t * \t\teditor.config.get( 'foo' ); // -> 1\n\t * \t\teditor.config.get( 'bar' ); // -> 2\n\t * \t} );\n\t *\n\t * // The default options can be overridden by the configuration passed to create().\n\t * ClassicEditor\n\t * \t.create( sourceElement, { bar: 3 } )\n\t * \t.then( editor => {\n\t * \t\teditor.config.get( 'foo' ); // -> 1\n\t * \t\teditor.config.get( 'bar' ); // -> 3\n\t * \t} );\n\t * ```\n\t *\n\t * See also {@link module:core/editor/editor~Editor.builtinPlugins}.\n\t */\n\tpublic static defaultConfig?: EditorConfig;\n\n\t/**\n\t * An array of plugins built into this editor class.\n\t *\n\t * It is used in CKEditor 5 builds to provide a list of plugins which are later automatically initialized\n\t * during the editor initialization.\n\t *\n\t * They will be automatically initialized by the editor, unless listed in `config.removePlugins` and\n\t * unless `config.plugins` is passed.\n\t *\n\t * ```ts\n\t * // Build some plugins into the editor class first.\n\t * ClassicEditor.builtinPlugins = [ FooPlugin, BarPlugin ];\n\t *\n\t * // Normally, you need to define config.plugins, but since ClassicEditor.builtinPlugins was\n\t * // defined, now you can call create() without any configuration.\n\t * ClassicEditor\n\t * \t.create( sourceElement )\n\t * \t.then( editor => {\n\t * \t\teditor.plugins.get( FooPlugin ); // -> An instance of the Foo plugin.\n\t * \t\teditor.plugins.get( BarPlugin ); // -> An instance of the Bar plugin.\n\t * \t} );\n\t *\n\t * ClassicEditor\n\t * \t.create( sourceElement, {\n\t * \t\t// Do not initialize these plugins (note: it is defined by a string):\n\t * \t\tremovePlugins: [ 'Foo' ]\n\t * \t} )\n\t * \t.then( editor => {\n\t * \t\teditor.plugins.get( FooPlugin ); // -> Undefined.\n\t * \t\teditor.config.get( BarPlugin ); // -> An instance of the Bar plugin.\n\t * \t} );\n\t *\n\t * ClassicEditor\n\t * \t.create( sourceElement, {\n\t * \t\t// Load only this plugin. It can also be defined by a string if\n\t * \t\t// this plugin was built into the editor class.\n\t * \t\tplugins: [ FooPlugin ]\n\t * \t} )\n\t * \t.then( editor => {\n\t * \t\teditor.plugins.get( FooPlugin ); // -> An instance of the Foo plugin.\n\t * \t\teditor.config.get( BarPlugin ); // -> Undefined.\n\t * \t} );\n\t * ```\n\t *\n\t * See also {@link module:core/editor/editor~Editor.defaultConfig}.\n\t */\n\tpublic static builtinPlugins?: Array<PluginConstructor<Editor>>;\n\n\t/**\n\t * The editor UI instance.\n\t */\n\tpublic abstract get ui(): EditorUI;\n\n\t/**\n\t * The editor context.\n\t * When it is not provided through the configuration, the editor creates it.\n\t */\n\tprotected readonly _context: Context;\n\n\t/**\n\t * A set of lock IDs for the {@link #isReadOnly} getter.\n\t */\n\tprotected readonly _readOnlyLocks: Set<symbol | string>;\n\n\t/**\n\t * Creates a new instance of the editor class.\n\t *\n\t * Usually, not to be used directly. See the static {@link module:core/editor/editor~Editor.create `create()`} method.\n\t *\n\t * @param config The editor configuration.\n\t */\n\tconstructor( config: EditorConfig = {} ) {\n\t\tsuper();\n\n\t\tconst constructor = this.constructor as typeof Editor;\n\n\t\t// Prefer the language passed as the argument to the constructor instead of the constructor's `defaultConfig`, if both are set.\n\t\tconst language = config.language || ( constructor.defaultConfig && constructor.defaultConfig.language );\n\n\t\tthis._context = config.context || new Context( { language } );\n\t\tthis._context._addEditor( this, !config.context );\n\n\t\t// Clone the plugins to make sure that the plugin array will not be shared\n\t\t// between editors and make the watchdog feature work correctly.\n\t\tconst availablePlugins = Array.from( constructor.builtinPlugins || [] );\n\n\t\tthis.config = new Config<EditorConfig>( config, constructor.defaultConfig );\n\t\tthis.config.define( 'plugins', availablePlugins );\n\t\tthis.config.define( this._context._getEditorConfig() );\n\n\t\tthis.plugins = new PluginCollection<Editor>( this, availablePlugins, this._context.plugins );\n\n\t\tthis.locale = this._context.locale;\n\t\tthis.t = this.locale.t;\n\n\t\tthis._readOnlyLocks = new Set();\n\n\t\tthis.commands = new CommandCollection();\n\n\t\tthis.set( 'state', 'initializing' );\n\t\tthis.once<EditorReadyEvent>( 'ready', () => ( this.state = 'ready' ), { priority: 'high' } );\n\t\tthis.once<EditorDestroyEvent>( 'destroy', () => ( this.state = 'destroyed' ), { priority: 'high' } );\n\n\t\tthis.model = new Model();\n\n\t\tconst stylesProcessor = new StylesProcessor();\n\n\t\tthis.data = new DataController( this.model, stylesProcessor );\n\n\t\tthis.editing = new EditingController( this.model, stylesProcessor );\n\t\tthis.editing.view.document.bind( 'isReadOnly' ).to( this );\n\n\t\tthis.conversion = new Conversion( [ this.editing.downcastDispatcher, this.data.downcastDispatcher ], this.data.upcastDispatcher );\n\t\tthis.conversion.addAlias( 'dataDowncast', this.data.downcastDispatcher );\n\t\tthis.conversion.addAlias( 'editingDowncast', this.editing.downcastDispatcher );\n\n\t\tthis.keystrokes = new EditingKeystrokeHandler( this );\n\t\tthis.keystrokes.listenTo( this.editing.view.document );\n\t}\n\n\t/**\n\t * Defines whether the editor is in the read-only mode.\n\t *\n\t * In read-only mode the editor {@link #commands commands} are disabled so it is not possible\n\t * to modify the document by using them. Also, the editable element(s) become non-editable.\n\t *\n\t * In order to make the editor read-only, you need to call the {@link #enableReadOnlyMode} method:\n\t *\n\t * ```ts\n\t * editor.enableReadOnlyMode( 'feature-id' );\n\t * ```\n\t *\n     * Later, to turn off the read-only mode, call {@link #disableReadOnlyMode}:\n\t *\n\t * ```ts\n\t * editor.disableReadOnlyMode( 'feature-id' );\n\t * ```\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tpublic get isReadOnly(): boolean {\n\t\treturn this._readOnlyLocks.size > 0;\n\t}\n\n\tpublic set isReadOnly( value: boolean ) {\n\t\t/**\n\t\t * The {@link module:core/editor/editor~Editor#isReadOnly Editor#isReadOnly} property is read-only since version `34.0.0`\n\t\t * and can be set only using {@link module:core/editor/editor~Editor#enableReadOnlyMode `Editor#enableReadOnlyMode( lockId )`} and\n\t\t * {@link module:core/editor/editor~Editor#disableReadOnlyMode `Editor#disableReadOnlyMode( lockId )`}.\n\t\t *\n\t\t * Usage before version `34.0.0`:\n\t\t *\n\t\t * ```ts\n\t\t * editor.isReadOnly = true;\n\t\t * editor.isReadOnly = false;\n\t\t * ```\n\t\t *\n\t\t * Usage since version `34.0.0`:\n\t\t *\n\t\t * ```ts\n\t\t * editor.enableReadOnlyMode( 'my-feature-id' );\n\t\t * editor.disableReadOnlyMode( 'my-feature-id' );\n\t\t * ```\n\t\t *\n\t\t * @error editor-isreadonly-has-no-setter\n\t\t */\n\t\tthrow new CKEditorError( 'editor-isreadonly-has-no-setter' );\n\t}\n\n\t/**\n\t * Turns on the read-only mode in the editor.\n\t *\n\t * Editor can be switched to or out of the read-only mode by many features, under various circumstances. The editor supports locking\n\t * mechanism for the read-only mode. It enables easy control over the read-only mode when many features wants to turn it on or off at\n\t * the same time, without conflicting with each other. It guarantees that you will not make the editor editable accidentally (which\n\t * could lead to errors).\n\t *\n\t * Each read-only mode request is identified by a unique id (also called \"lock\"). If multiple plugins requested to turn on the\n\t * read-only mode, then, the editor will become editable only after all these plugins turn the read-only mode off (using the same ids).\n\t *\n\t * Note, that you cannot force the editor to disable the read-only mode if other plugins set it.\n\t *\n\t * After the first `enableReadOnlyMode()` call, the {@link #isReadOnly `isReadOnly` property} will be set to `true`:\n\t *\n\t * ```ts\n\t * editor.isReadOnly; // `false`.\n\t * editor.enableReadOnlyMode( 'my-feature-id' );\n\t * editor.isReadOnly; // `true`.\n\t * ```\n\t *\n\t * You can turn off the read-only mode (\"clear the lock\") using the {@link #disableReadOnlyMode `disableReadOnlyMode()`} method:\n\t *\n\t * ```ts\n\t * editor.enableReadOnlyMode( 'my-feature-id' );\n\t * // ...\n\t * editor.disableReadOnlyMode( 'my-feature-id' );\n\t * editor.isReadOnly; // `false`.\n\t * ```\n\t *\n\t * All \"locks\" need to be removed to enable editing:\n\t *\n\t * ```ts\n\t * editor.enableReadOnlyMode( 'my-feature-id' );\n\t * editor.enableReadOnlyMode( 'my-other-feature-id' );\n\t * // ...\n\t * editor.disableReadOnlyMode( 'my-feature-id' );\n\t * editor.isReadOnly; // `true`.\n\t * editor.disableReadOnlyMode( 'my-other-feature-id' );\n\t * editor.isReadOnly; // `false`.\n\t * ```\n\t *\n\t * @param lockId A unique ID for setting the editor to the read-only state.\n\t */\n\tpublic enableReadOnlyMode( lockId: string | symbol ): void {\n\t\tif ( typeof lockId !== 'string' && typeof lockId !== 'symbol' ) {\n\t\t\t/**\n\t\t\t * The lock ID is missing or it is not a string or symbol.\n\t\t\t *\n\t\t\t * @error editor-read-only-lock-id-invalid\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'editor-read-only-lock-id-invalid', null, { lockId } );\n\t\t}\n\n\t\tif ( this._readOnlyLocks.has( lockId ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._readOnlyLocks.add( lockId );\n\n\t\tif ( this._readOnlyLocks.size === 1 ) {\n\t\t\t// Manually fire the `change:isReadOnly` event as only getter is provided.\n\t\t\tthis.fire<ObservableChangeEvent<boolean>>( 'change:isReadOnly', 'isReadOnly', true, false );\n\t\t}\n\t}\n\n\t/**\n\t * Removes the read-only lock from the editor with given lock ID.\n\t *\n\t * When no lock is present on the editor anymore, then the {@link #isReadOnly `isReadOnly` property} will be set to `false`.\n\t *\n\t * @param lockId The lock ID for setting the editor to the read-only state.\n\t */\n\tpublic disableReadOnlyMode( lockId: string | symbol ): void {\n\t\tif ( typeof lockId !== 'string' && typeof lockId !== 'symbol' ) {\n\t\t\tthrow new CKEditorError( 'editor-read-only-lock-id-invalid', null, { lockId } );\n\t\t}\n\n\t\tif ( !this._readOnlyLocks.has( lockId ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._readOnlyLocks.delete( lockId );\n\n\t\tif ( this._readOnlyLocks.size === 0 ) {\n\t\t\t// Manually fire the `change:isReadOnly` event as only getter is provided.\n\t\t\tthis.fire<ObservableChangeEvent<boolean>>( 'change:isReadOnly', 'isReadOnly', false, true );\n\t\t}\n\t}\n\n\t/**\n\t * Loads and initializes plugins specified in the configuration.\n\t *\n\t * @returns A promise which resolves once the initialization is completed, providing an array of loaded plugins.\n\t */\n\tpublic initPlugins(): Promise<LoadedPlugins> {\n\t\tconst config = this.config;\n\t\tconst plugins = config.get( 'plugins' )!;\n\t\tconst removePlugins = config.get( 'removePlugins' ) || [];\n\t\tconst extraPlugins = config.get( 'extraPlugins' ) || [];\n\t\tconst substitutePlugins = config.get( 'substitutePlugins' ) || [];\n\n\t\treturn this.plugins.init( plugins.concat( extraPlugins ), removePlugins, substitutePlugins );\n\t}\n\n\t/**\n\t * Destroys the editor instance, releasing all resources used by it.\n\t *\n\t * **Note** The editor cannot be destroyed during the initialization phase so if it is called\n\t * while the editor {@link #state is being initialized}, it will wait for the editor initialization before destroying it.\n\t *\n\t * @fires destroy\n\t * @returns A promise that resolves once the editor instance is fully destroyed.\n\t */\n\tpublic destroy(): Promise<unknown> {\n\t\tlet readyPromise: Promise<unknown> = Promise.resolve();\n\n\t\tif ( this.state == 'initializing' ) {\n\t\t\treadyPromise = new Promise( resolve => this.once<EditorReadyEvent>( 'ready', resolve ) );\n\t\t}\n\n\t\treturn readyPromise\n\t\t\t.then( () => {\n\t\t\t\tthis.fire<EditorDestroyEvent>( 'destroy' );\n\t\t\t\tthis.stopListening();\n\t\t\t\tthis.commands.destroy();\n\t\t\t} )\n\t\t\t.then( () => this.plugins.destroy() )\n\t\t\t.then( () => {\n\t\t\t\tthis.model.destroy();\n\t\t\t\tthis.data.destroy();\n\t\t\t\tthis.editing.destroy();\n\t\t\t\tthis.keystrokes.destroy();\n\t\t\t} )\n\t\t\t// Remove the editor from the context.\n\t\t\t// When the context was created by this editor, the context will be destroyed.\n\t\t\t.then( () => this._context._removeEditor( this ) );\n\t}\n\n\t/**\n\t * Executes the specified command with given parameters.\n\t *\n\t * Shorthand for:\n\t *\n\t * ```ts\n\t * editor.commands.get( commandName ).execute( ... );\n\t * ```\n\t *\n\t * @param commandName The name of the command to execute.\n\t * @param commandParams Command parameters.\n\t * @returns The value returned by the {@link module:core/commandcollection~CommandCollection#execute `commands.execute()`}.\n\t */\n\tpublic execute<TName extends string>(\n\t\tcommandName: TName,\n\t\t...commandParams: Parameters<CommandsMap[ TName ][ 'execute' ]>\n\t): ReturnType<CommandsMap[ TName ][ 'execute' ]> {\n\t\ttry {\n\t\t\treturn this.commands.execute( commandName, ...commandParams );\n\t\t} catch ( err: any ) {\n\t\t\t// @if CK_DEBUG // throw err;\n\t\t\t/* istanbul ignore next -- @preserve */\n\t\t\tCKEditorError.rethrowUnexpectedError( err, this );\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the editor.\n\t *\n\t * **Note** To explicitly focus the editing area of the editor, use the\n\t * {@link module:engine/view/view~View#focus `editor.editing.view.focus()`} method of the editing view.\n\t *\n\t * Check out the {@glink framework/deep-dive/ui/focus-tracking#focus-in-the-editor-ui Focus in the editor UI} section\n\t * of the {@glink framework/deep-dive/ui/focus-tracking Deep dive into focus tracking} guide to learn more.\n\t */\n\tpublic focus(): void {\n\t\tthis.editing.view.focus();\n\t}\n\n\t/* istanbul ignore next -- @preserve */\n\t/**\n\t * Creates and initializes a new editor instance.\n\t *\n\t * This is an abstract method. Every editor type needs to implement its own initialization logic.\n\t *\n\t * See the `create()` methods of the existing editor types to learn how to use them:\n\t *\n\t * * {@link module:editor-classic/classiceditor~ClassicEditor.create `ClassicEditor.create()`}\n\t * * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`}\n\t * * {@link module:editor-decoupled/decouplededitor~DecoupledEditor.create `DecoupledEditor.create()`}\n\t * * {@link module:editor-inline/inlineeditor~InlineEditor.create `InlineEditor.create()`}\n\t */\n\tpublic static create( ...args: Array<unknown> ): void {\n\t\tthrow new Error( 'This is an abstract method.' );\n\t}\n}\n\n/**\n * Fired when the {@link module:engine/controller/datacontroller~DataController#event:ready data} and all additional\n * editor components are ready.\n *\n * Note: This event is most useful for plugin developers. When integrating the editor with your website or\n * application, you do not have to listen to `editor#ready` because when the promise returned by the static\n * {@link module:core/editor/editor~Editor.create `Editor.create()`} event is resolved, the editor is already ready.\n * In fact, since the first moment when the editor instance is available to you is inside `then()`'s callback,\n * you cannot even add a listener to the `editor#ready` event.\n *\n * See also the {@link module:core/editor/editor~Editor#state `editor.state`} property.\n *\n * @eventName ~Editor#ready\n */\nexport type EditorReadyEvent = {\n\tname: 'ready';\n\targs: [];\n};\n\n/**\n * Fired when this editor instance is destroyed. The editor at this point is not usable and this event should be used to\n * perform the clean-up in any plugin.\n *\n * See also the {@link module:core/editor/editor~Editor#state `editor.state`} property.\n *\n * @eventName ~Editor#destroy\n */\nexport type EditorDestroyEvent = {\n\tname: 'destroy';\n\targs: [];\n};\n\n/**\n * This error is thrown when trying to pass a `<textarea>` element to a `create()` function of an editor class.\n *\n * The only editor type which can be initialized on `<textarea>` elements is\n * the {@glink installation/getting-started/predefined-builds#classic-editor classic editor}.\n * This editor hides the passed element and inserts its own UI next to it. Other types of editors reuse the passed element as their root\n * editable element and therefore `<textarea>` is not appropriate for them. Use a `<div>` or another text container instead:\n *\n * ```html\n * <div id=\"editor\">\n * \t<p>Initial content.</p>\n * </div>\n * ```\n *\n * @error editor-wrong-element\n */\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editor/utils/dataapimixin\n */\n\nimport type Editor from '../editor';\n\nimport type { Constructor, Mixed } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Implementation of the {@link module:core/editor/utils/dataapimixin~DataApi}.\n */\nexport default function DataApiMixin<Base extends Constructor<Editor>>( base: Base ): Mixed<Base, DataApi> {\n\tabstract class Mixin extends base implements DataApi {\n\t\tpublic setData( data: string | Record<string, string> ): void {\n\t\t\tthis.data.set( data );\n\t\t}\n\n\t\tpublic getData( options?: Record<string, unknown> ): string {\n\t\t\treturn this.data.get( options );\n\t\t}\n\t}\n\n\treturn Mixin as any;\n}\n\n// Backward compatibility with `mix`.\n{\n\tconst mixin = ( DataApiMixin as any )( Object );\n\n\t( DataApiMixin as any ).setData = mixin.prototype.setData;\n\t( DataApiMixin as any ).getData = mixin.prototype.getData;\n}\n\n/**\n * Interface defining editor methods for setting and getting data to and from the editor's main root element\n * using the {@link module:core/editor/editor~Editor#data data pipeline}.\n *\n * This interface is not a part of the {@link module:core/editor/editor~Editor} class because one may want to implement\n * an editor with multiple root elements, in which case the methods for setting and getting data will need to be implemented\n * differently.\n */\nexport interface DataApi {\n\n\t/**\n\t * Sets the data in the editor.\n\t *\n\t * ```ts\n\t * editor.setData( '<p>This is editor!</p>' );\n\t * ```\n\t *\n\t * If your editor implementation uses multiple roots, you should pass an object with keys corresponding\n\t * to the editor root names and values equal to the data that should be set in each root:\n\t *\n\t * ```ts\n\t * editor.setData( {\n\t *     header: '<p>Content for header part.</p>',\n\t *     content: '<p>Content for main part.</p>',\n\t *     footer: '<p>Content for footer part.</p>'\n\t * } );\n\t * ```\n\t *\n\t * By default the editor accepts HTML. This can be controlled by injecting a different data processor.\n\t * See the {@glink features/markdown Markdown output} guide for more details.\n\t *\n\t * @param data Input data.\n\t */\n\tsetData( data: string | Record<string, string> ): void;\n\n\t/**\n\t * Gets the data from the editor.\n\t *\n\t * ```ts\n\t * editor.getData(); // -> '<p>This is editor!</p>'\n\t * ```\n\t *\n\t * If your editor implementation uses multiple roots, you should pass root name as one of the options:\n\t *\n\t * ```ts\n\t * editor.getData( { rootName: 'header' } ); // -> '<p>Content for header part.</p>'\n\t * ```\n\t *\n\t * By default, the editor outputs HTML. This can be controlled by injecting a different data processor.\n\t * See the {@glink features/markdown Markdown output} guide for more details.\n\t *\n\t * A warning is logged when you try to retrieve data for a detached root, as most probably this is a mistake. A detached root should\n\t * be treated like it is removed, and you should not save its data. Note, that the detached root data is always an empty string.\n\t *\n\t * @param options Additional configuration for the retrieved data.\n\t * Editor features may introduce more configuration options that can be set through this parameter.\n\t * @param options.rootName Root name. Default to `'main'`.\n\t * @param options.trim Whether returned data should be trimmed. This option is set to `'empty'` by default,\n\t * which means that whenever editor content is considered empty, an empty string is returned. To turn off trimming\n\t * use `'none'`. In such cases exact content will be returned (for example `'<p>&nbsp;</p>'` for an empty editor).\n\t * @returns Output data.\n\t */\n\tgetData( options?: Record<string, unknown> ): string;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editor/utils/elementapimixin\n */\n\nimport {\n\tCKEditorError,\n\tsetDataInElement,\n\ttype Constructor,\n\ttype Mixed\n} from '@ckeditor/ckeditor5-utils';\n\nimport type Editor from '../editor';\n\n/**\n * Implementation of the {@link module:core/editor/utils/elementapimixin~ElementApi}.\n */\nexport default function ElementApiMixin<Base extends Constructor<Editor>>( base: Base ): Mixed<Base, ElementApi> {\n\tabstract class Mixin extends base implements ElementApi {\n\t\tpublic sourceElement: HTMLElement | undefined;\n\n\t\tpublic updateSourceElement( data: string = this.data.get() ): void {\n\t\t\tif ( !this.sourceElement ) {\n\t\t\t\t/**\n\t\t\t\t * Cannot update the source element of a detached editor.\n\t\t\t\t *\n\t\t\t\t * The {@link module:core/editor/utils/elementapimixin~ElementApi#updateSourceElement `updateSourceElement()`}\n\t\t\t\t * method cannot be called if you did not pass an element to `Editor.create()`.\n\t\t\t\t *\n\t\t\t\t * @error editor-missing-sourceelement\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'editor-missing-sourceelement',\n\t\t\t\t\tthis\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tconst shouldUpdateSourceElement = this.config.get( 'updateSourceElementOnDestroy' );\n\t\t\tconst isSourceElementTextArea = this.sourceElement instanceof HTMLTextAreaElement;\n\n\t\t\t// The data returned by the editor might be unsafe, so we want to prevent rendering\n\t\t\t// unsafe content inside the source element different than <textarea>, which is considered\n\t\t\t// secure. This behaviour could be changed by setting the `updateSourceElementOnDestroy`\n\t\t\t// configuration option to `true`.\n\t\t\tif ( !shouldUpdateSourceElement && !isSourceElementTextArea ) {\n\t\t\t\tsetDataInElement( this.sourceElement, '' );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tsetDataInElement( this.sourceElement, data );\n\t\t}\n\t}\n\n\treturn Mixin as any;\n}\n\n// Backward compatibility with `mix`.\n( ElementApiMixin as any ).updateSourceElement = ( ElementApiMixin as any )( Object ).prototype.updateSourceElement;\n\n/**\n * Interface describing an editor that replaced a DOM element (was \"initialized on an element\").\n *\n * Such an editor should provide a method to\n * {@link module:core/editor/utils/elementapimixin~ElementApi#updateSourceElement update the replaced element with the current data}.\n */\nexport interface ElementApi {\n\n\t/**\n\t * The element on which the editor has been initialized.\n\t *\n\t * @readonly\n\t */\n\tsourceElement: HTMLElement | undefined;\n\n\t/**\n\t * Updates the {@link #sourceElement editor source element}'s content with the data.\n\t */\n\tupdateSourceElement( data?: string ): void;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/pendingactions\n */\n\nimport ContextPlugin from './contextplugin';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tObservableMixin,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype Observable\n} from '@ckeditor/ckeditor5-utils';\n\n/**\n * The list of pending editor actions.\n *\n * This plugin should be used to synchronise plugins that execute long-lasting actions\n * (e.g. file upload) with the editor integration. It gives the developer who integrates the editor\n * an easy way to check if there are any actions pending whenever such information is needed.\n * All plugins that register a pending action also provide a message about the action that is ongoing\n * which can be displayed to the user. This lets them decide if they want to interrupt the action or wait.\n *\n * Adding and updating a pending action:\n *\n * ```ts\n * const pendingActions = editor.plugins.get( 'PendingActions' );\n * const action = pendingActions.add( 'Upload in progress: 0%.' );\n *\n * // You can update the message:\n * action.message = 'Upload in progress: 10%.';\n * ```\n *\n * Removing a pending action:\n *\n * ```ts\n * const pendingActions = editor.plugins.get( 'PendingActions' );\n * const action = pendingActions.add( 'Unsaved changes.' );\n *\n * pendingActions.remove( action );\n * ```\n *\n * Getting pending actions:\n *\n * ```ts\n * const pendingActions = editor.plugins.get( 'PendingActions' );\n *\n * const action1 = pendingActions.add( 'Action 1' );\n * const action2 = pendingActions.add( 'Action 2' );\n *\n * pendingActions.first; // Returns action1\n * Array.from( pendingActions ); // Returns [ action1, action2 ]\n * ```\n *\n * This plugin is used by features like {@link module:upload/filerepository~FileRepository} to register their ongoing actions\n * and by features like {@link module:autosave/autosave~Autosave} to detect whether there are any ongoing actions.\n * Read more about saving the data in the {@glink installation/getting-started/getting-and-setting-data Saving and getting data} guide.\n */\nexport default class PendingActions extends ContextPlugin implements Iterable<PendingAction> {\n\t/**\n\t * Defines whether there is any registered pending action.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public hasAny: boolean;\n\n\t/**\n\t * A list of pending actions.\n\t */\n\tprivate _actions!: Collection<PendingAction>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'PendingActions' {\n\t\treturn 'PendingActions';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tthis.set( 'hasAny', false );\n\n\t\tthis._actions = new Collection( { idProperty: '_id' } );\n\t\tthis._actions.delegate( 'add', 'remove' ).to( this );\n\t}\n\n\t/**\n\t * Adds an action to the list of pending actions.\n\t *\n\t * This method returns an action object with an observable message property.\n\t * The action object can be later used in the {@link #remove} method. It also allows you to change the message.\n\t *\n\t * @param message The action message.\n\t * @returns An observable object that represents a pending action.\n\t */\n\tpublic add( message: string ): PendingAction {\n\t\tif ( typeof message !== 'string' ) {\n\t\t\t/**\n\t\t\t * The message must be a string.\n\t\t\t *\n\t\t\t * @error pendingactions-add-invalid-message\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'pendingactions-add-invalid-message', this );\n\t\t}\n\n\t\tconst action = new ( ObservableMixin() )() as PendingAction;\n\n\t\taction.set( 'message', message );\n\t\tthis._actions.add( action );\n\t\tthis.hasAny = true;\n\n\t\treturn action;\n\t}\n\n\t/**\n\t * Removes an action from the list of pending actions.\n\t *\n\t * @param action An action object.\n\t */\n\tpublic remove( action: PendingAction ): void {\n\t\tthis._actions.remove( action );\n\t\tthis.hasAny = !!this._actions.length;\n\t}\n\n\t/**\n\t * Returns the first action from the list or null if the list is empty\n\t *\n\t * @returns The pending action object.\n\t */\n\tpublic get first(): PendingAction | null {\n\t\treturn this._actions.get( 0 );\n\t}\n\n\t/**\n\t * Iterable interface.\n\t */\n\tpublic [ Symbol.iterator ](): Iterator<PendingAction> {\n\t\treturn this._actions[ Symbol.iterator ]();\n\t}\n}\n\nexport interface PendingAction extends Observable {\n\tmessage: string;\n}\n\n/**\n * Fired when an action is added to the list.\n *\n * @eventName ~PendingActions#add\n * @param action The added action.\n */\nexport type PendingActionsAddEvent = CollectionAddEvent<PendingAction>;\n\n/**\n * Fired when an action is removed from the list.\n *\n * @eventName ~PendingActions#remove\n * @param action The removed action.\n */\nexport type PendingActionsRemoveEvent = CollectionRemoveEvent<PendingAction>;\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.591 10.177 4.243 4.242a1 1 0 0 1-1.415 1.415l-4.242-4.243-4.243 4.243a1 1 0 0 1-1.414-1.415l4.243-4.242L4.52 5.934A1 1 0 0 1 5.934 4.52l4.243 4.243 4.242-4.243a1 1 0 1 1 1.415 1.414l-4.243 4.243z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core\n */\n\nexport { default as Plugin, type PluginDependencies, type PluginConstructor } from './plugin';\nexport { default as Command, type CommandExecuteEvent } from './command';\nexport { default as MultiCommand } from './multicommand';\nexport type { CommandsMap } from './commandcollection';\nexport type { PluginsMap, default as PluginCollection } from './plugincollection';\n\nexport { default as Context, type ContextConfig } from './context';\nexport { default as ContextPlugin, type ContextPluginDependencies } from './contextplugin';\nexport { type EditingKeystrokeCallback } from './editingkeystrokehandler';\n\nexport { default as Editor, type EditorReadyEvent, type EditorDestroyEvent } from './editor/editor';\nexport type {\n\tEditorConfig,\n\tLanguageConfig,\n\tToolbarConfig,\n\tToolbarConfigItem\n} from './editor/editorconfig';\n\nexport { default as attachToForm } from './editor/utils/attachtoform';\nexport { default as DataApiMixin, type DataApi } from './editor/utils/dataapimixin';\nexport { default as ElementApiMixin, type ElementApi } from './editor/utils/elementapimixin';\nexport { default as secureSourceElement } from './editor/utils/securesourceelement';\n\nexport { default as PendingActions, type PendingAction } from './pendingactions';\n\nimport cancel from './../theme/icons/cancel.svg';\nimport caption from './../theme/icons/caption.svg';\nimport check from './../theme/icons/check.svg';\nimport cog from './../theme/icons/cog.svg';\nimport eraser from './../theme/icons/eraser.svg';\nimport lowVision from './../theme/icons/low-vision.svg';\nimport image from './../theme/icons/image.svg';\n\nimport alignBottom from './../theme/icons/align-bottom.svg';\nimport alignMiddle from './../theme/icons/align-middle.svg';\nimport alignTop from './../theme/icons/align-top.svg';\nimport alignLeft from './../theme/icons/align-left.svg';\nimport alignCenter from './../theme/icons/align-center.svg';\nimport alignRight from './../theme/icons/align-right.svg';\nimport alignJustify from './../theme/icons/align-justify.svg';\n\nimport objectBlockLeft from './../theme/icons/object-left.svg';\nimport objectCenter from './../theme/icons/object-center.svg';\nimport objectBlockRight from './../theme/icons/object-right.svg';\nimport objectFullWidth from './../theme/icons/object-full-width.svg';\nimport objectInline from './../theme/icons/object-inline.svg';\nimport objectLeft from './../theme/icons/object-inline-left.svg';\nimport objectRight from './../theme/icons/object-inline-right.svg';\n\nimport objectSizeFull from './../theme/icons/object-size-full.svg';\nimport objectSizeLarge from './../theme/icons/object-size-large.svg';\nimport objectSizeSmall from './../theme/icons/object-size-small.svg';\nimport objectSizeMedium from './../theme/icons/object-size-medium.svg';\n\nimport pencil from './../theme/icons/pencil.svg';\nimport pilcrow from './../theme/icons/pilcrow.svg';\nimport quote from './../theme/icons/quote.svg';\nimport threeVerticalDots from './../theme/icons/three-vertical-dots.svg';\n\nimport bold from './../theme/icons/bold.svg';\nimport paragraph from './../theme/icons/paragraph.svg';\nimport plus from './../theme/icons/plus.svg';\nimport text from './../theme/icons/text.svg';\nimport importExport from './../theme/icons/importexport.svg';\n\nexport const icons = {\n\tbold,\n\tcancel,\n\tcaption,\n\tcheck,\n\tcog,\n\teraser,\n\timage,\n\tlowVision,\n\timportExport,\n\tparagraph,\n\tplus,\n\ttext,\n\n\talignBottom,\n\talignMiddle,\n\talignTop,\n\talignLeft,\n\talignCenter,\n\talignRight,\n\talignJustify,\n\n\tobjectLeft,\n\tobjectCenter,\n\tobjectRight,\n\tobjectFullWidth,\n\tobjectInline,\n\tobjectBlockLeft,\n\tobjectBlockRight,\n\n\tobjectSizeFull,\n\tobjectSizeLarge,\n\tobjectSizeSmall,\n\tobjectSizeMedium,\n\n\tpencil,\n\tpilcrow,\n\tquote,\n\tthreeVerticalDots\n};\n\nimport './augmentation';\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M10.187 17H5.773c-.637 0-1.092-.138-1.364-.415-.273-.277-.409-.718-.409-1.323V4.738c0-.617.14-1.062.419-1.332.279-.27.73-.406 1.354-.406h4.68c.69 0 1.288.041 1.793.124.506.083.96.242 1.36.478.341.197.644.447.906.75a3.262 3.262 0 0 1 .808 2.162c0 1.401-.722 2.426-2.167 3.075C15.05 10.175 16 11.315 16 13.01a3.756 3.756 0 0 1-2.296 3.504 6.1 6.1 0 0 1-1.517.377c-.571.073-1.238.11-2 .11zm-.217-6.217H7v4.087h3.069c1.977 0 2.965-.69 2.965-2.072 0-.707-.256-1.22-.768-1.537-.512-.319-1.277-.478-2.296-.478zM7 5.13v3.619h2.606c.729 0 1.292-.067 1.69-.2a1.6 1.6 0 0 0 .91-.765c.165-.267.247-.566.247-.897 0-.707-.26-1.176-.778-1.409-.519-.232-1.31-.348-2.375-.348H7z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 16h9a1 1 0 0 1 0 2H2a1 1 0 0 1 0-2z\\\"/><path d=\\\"M17 1a2 2 0 0 1 2 2v9a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V3a2 2 0 0 1 2-2h14zm0 1.5H3a.5.5 0 0 0-.492.41L2.5 3v9a.5.5 0 0 0 .41.492L3 12.5h14a.5.5 0 0 0 .492-.41L17.5 12V3a.5.5 0 0 0-.41-.492L17 2.5z\\\" fill-opacity=\\\".6\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M6.972 16.615a.997.997 0 0 1-.744-.292l-4.596-4.596a1 1 0 1 1 1.414-1.414l3.926 3.926 9.937-9.937a1 1 0 0 1 1.414 1.415L7.717 16.323a.997.997 0 0 1-.745.292z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.333 2 .19 2.263a5.899 5.899 0 0 1 1.458.604L14.714 3.4 16.6 5.286l-1.467 1.733c.263.452.468.942.605 1.46L18 8.666v2.666l-2.263.19a5.899 5.899 0 0 1-.604 1.458l1.467 1.733-1.886 1.886-1.733-1.467a5.899 5.899 0 0 1-1.46.605L11.334 18H8.667l-.19-2.263a5.899 5.899 0 0 1-1.458-.604L5.286 16.6 3.4 14.714l1.467-1.733a5.899 5.899 0 0 1-.604-1.458L2 11.333V8.667l2.262-.189a5.899 5.899 0 0 1 .605-1.459L3.4 5.286 5.286 3.4l1.733 1.467a5.899 5.899 0 0 1 1.46-.605L8.666 2h2.666zM10 6.267a3.733 3.733 0 1 0 0 7.466 3.733 3.733 0 0 0 0-7.466z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m8.636 9.531-2.758 3.94a.5.5 0 0 0 .122.696l3.224 2.284h1.314l2.636-3.736L8.636 9.53zm.288 8.451L5.14 15.396a2 2 0 0 1-.491-2.786l6.673-9.53a2 2 0 0 1 2.785-.49l3.742 2.62a2 2 0 0 1 .491 2.785l-7.269 10.053-2.147-.066z\\\"/><path d=\\\"M4 18h5.523v-1H4zm-2 0h1v-1H2z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M6.91 10.54c.26-.23.64-.21.88.03l3.36 3.14 2.23-2.06a.64.64 0 0 1 .87 0l2.52 2.97V4.5H3.2v10.12l3.71-4.08zm10.27-7.51c.6 0 1.09.47 1.09 1.05v11.84c0 .59-.49 1.06-1.09 1.06H2.79c-.6 0-1.09-.47-1.09-1.06V4.08c0-.58.49-1.05 1.1-1.05h14.38zm-5.22 5.56a1.96 1.96 0 1 1 3.4-1.96 1.96 1.96 0 0 1-3.4 1.96z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M5.085 6.22 2.943 4.078a.75.75 0 1 1 1.06-1.06l2.592 2.59A11.094 11.094 0 0 1 10 5.068c4.738 0 8.578 3.101 8.578 5.083 0 1.197-1.401 2.803-3.555 3.887l1.714 1.713a.75.75 0 0 1-.09 1.138.488.488 0 0 1-.15.084.75.75 0 0 1-.821-.16L6.17 7.304c-.258.11-.51.233-.757.365l6.239 6.24-.006.005.78.78c-.388.094-.78.166-1.174.215l-1.11-1.11h.011L4.55 8.197a7.2 7.2 0 0 0-.665.514l-.112.098 4.897 4.897-.005.006 1.276 1.276a10.164 10.164 0 0 1-1.477-.117l-.479-.479-.009.009-4.863-4.863-.022.031a2.563 2.563 0 0 0-.124.2c-.043.077-.08.158-.108.241a.534.534 0 0 0-.028.133.29.29 0 0 0 .008.072.927.927 0 0 0 .082.226c.067.133.145.26.234.379l3.242 3.365.025.01.59.623c-3.265-.918-5.59-3.155-5.59-4.668 0-1.194 1.448-2.838 3.663-3.93zm7.07.531a4.632 4.632 0 0 1 1.108 5.992l.345.344.046-.018a9.313 9.313 0 0 0 2-1.112c.256-.187.5-.392.727-.613.137-.134.27-.277.392-.431.072-.091.141-.185.203-.286.057-.093.107-.19.148-.292a.72.72 0 0 0 .036-.12.29.29 0 0 0 .008-.072.492.492 0 0 0-.028-.133.999.999 0 0 0-.036-.096 2.165 2.165 0 0 0-.071-.145 2.917 2.917 0 0 0-.125-.2 3.592 3.592 0 0 0-.263-.335 5.444 5.444 0 0 0-.53-.523 7.955 7.955 0 0 0-1.054-.768 9.766 9.766 0 0 0-1.879-.891c-.337-.118-.68-.219-1.027-.301zm-2.85.21-.069.002a.508.508 0 0 0-.254.097.496.496 0 0 0-.104.679.498.498 0 0 0 .326.199l.045.005c.091.003.181.003.272.012a2.45 2.45 0 0 1 2.017 1.513c.024.061.043.125.069.185a.494.494 0 0 0 .45.287h.008a.496.496 0 0 0 .35-.158.482.482 0 0 0 .13-.335.638.638 0 0 0-.048-.219 3.379 3.379 0 0 0-.36-.723 3.438 3.438 0 0 0-2.791-1.543l-.028-.001h-.013z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g clip-path=\\\"url(#a)\\\"><path clip-rule=\\\"evenodd\\\" d=\\\"M19 4.5 14 0H3v12.673l.868-1.041c.185-.222.4-.402.632-.54V1.5h8v5h5v7.626a2.24 2.24 0 0 1 1.5.822V4.5ZM14 5V2l3.3 3H14Zm-3.692 12.5c.062.105.133.206.213.303L11.52 19H8v-.876a2.243 2.243 0 0 0 1.82-.624h.488Zm7.518-.657a.75.75 0 0 0-1.152-.96L15.5 17.29V12H14v5.29l-1.174-1.408a.75.75 0 0 0-1.152.96l2.346 2.816a.95.95 0 0 0 1.46 0l2.346-2.815Zm-15.056-.38a.75.75 0 0 1-.096-1.056l2.346-2.815a.95.95 0 0 1 1.46 0l2.346 2.815a.75.75 0 1 1-1.152.96L6.5 14.96V20H5v-5.04l-1.174 1.408a.75.75 0 0 1-1.056.096Z\\\"/></g><defs><clipPath id=\\\"a\\\"><path d=\\\"M0 0h20v20H0z\\\"/></clipPath></defs></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M10.5 5.5H7v5h3.5a2.5 2.5 0 1 0 0-5zM5 3h6.5v.025a5 5 0 0 1 0 9.95V13H7v4a1 1 0 0 1-1 1H5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M10 2a1 1 0 0 0-1 1v6H3a1 1 0 1 0 0 2h6v6a1 1 0 1 0 2 0v-6h6a1 1 0 1 0 0-2h-6V3a1 1 0 0 0-1-1Z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g clip-path=\\\"url(#a)\\\"><path d=\\\"M9.816 11.5 7.038 4.785 4.261 11.5h5.555Zm.62 1.5H3.641l-1.666 4.028H.312l5.789-14h1.875l5.789 14h-1.663L10.436 13Z\\\"/><path clip-rule=\\\"evenodd\\\" d=\\\"m12.09 17-.534-1.292.848-1.971.545 1.319L12.113 17h-.023Zm1.142-5.187.545 1.319L15.5 9.13l1.858 4.316h-3.45l.398.965h3.467L18.887 17H20l-3.873-9h-1.254l-1.641 3.813Z\\\"/></g><defs><clipPath id=\\\"a\\\"><path d=\\\"M0 0h20v20H0z\\\"/></clipPath></defs></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m9.239 13.938-2.88-1.663a.75.75 0 0 1 .75-1.3L9 12.067V4.75a.75.75 0 1 1 1.5 0v7.318l1.89-1.093a.75.75 0 0 1 .75 1.3l-2.879 1.663a.752.752 0 0 1-.511.187.752.752 0 0 1-.511-.187zM4.25 17a.75.75 0 1 1 0-1.5h10.5a.75.75 0 0 1 0 1.5H4.25z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M9.75 11.875a.752.752 0 0 1 .508.184l2.883 1.666a.75.75 0 0 1-.659 1.344l-.091-.044-1.892-1.093.001 4.318a.75.75 0 1 1-1.5 0v-4.317l-1.89 1.092a.75.75 0 0 1-.75-1.3l2.879-1.663a.752.752 0 0 1 .51-.187zM15.25 9a.75.75 0 1 1 0 1.5H4.75a.75.75 0 1 1 0-1.5h10.5zM9.75.375a.75.75 0 0 1 .75.75v4.318l1.89-1.093.092-.045a.75.75 0 0 1 .659 1.344l-2.883 1.667a.752.752 0 0 1-.508.184.752.752 0 0 1-.511-.187L6.359 5.65a.75.75 0 0 1 .75-1.299L9 5.442V1.125a.75.75 0 0 1 .75-.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m10.261 7.062 2.88 1.663a.75.75 0 0 1-.75 1.3L10.5 8.933v7.317a.75.75 0 1 1-1.5 0V8.932l-1.89 1.093a.75.75 0 0 1-.75-1.3l2.879-1.663a.752.752 0 0 1 .511-.187.752.752 0 0 1 .511.187zM15.25 4a.75.75 0 1 1 0 1.5H4.75a.75.75 0 0 1 0-1.5h10.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 4c0 .414.336.75.75.75h9.929a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0-8c0 .414.336.75.75.75h9.929a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm2.286 4c0 .414.336.75.75.75h9.928a.75.75 0 1 0 0-1.5H5.036a.75.75 0 0 0-.75.75zm0-8c0 .414.336.75.75.75h9.928a.75.75 0 1 0 0-1.5H5.036a.75.75 0 0 0-.75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M18 3.75a.75.75 0 0 1-.75.75H2.75a.75.75 0 1 1 0-1.5h14.5a.75.75 0 0 1 .75.75zm0 8a.75.75 0 0 1-.75.75H2.75a.75.75 0 1 1 0-1.5h14.5a.75.75 0 0 1 .75.75zm0 4a.75.75 0 0 1-.75.75H7.321a.75.75 0 1 1 0-1.5h9.929a.75.75 0 0 1 .75.75zm0-8a.75.75 0 0 1-.75.75H7.321a.75.75 0 1 1 0-1.5h9.929a.75.75 0 0 1 .75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0 4c0 .414.336.75.75.75h9.929a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm0-8c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm11.5 9H18v1.5h-4.5zm0-3H18v1.5h-4.5zm0-3H18v1.5h-4.5zM2 15h16v1.5H2z\\\"/><path d=\\\"M12.003 7v5.5a1 1 0 0 1-1 1H2.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H3.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2z\\\"/><path d=\\\"M15.003 7v5.5a1 1 0 0 1-1 1H5.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H6.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2zm0-9h5v1.5H2zm0 3h5v1.5H2zm0 3h5v1.5H2z\\\"/><path d=\\\"M18.003 7v5.5a1 1 0 0 1-1 1H8.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H9.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2z\\\"/><path d=\\\"M18 7v5.5a1 1 0 0 1-1 1H3a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h14a1 1 0 0 1 1 1zm-1.505.5H3.504V12h12.991V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm11.5 9H18v1.5h-4.5zM2 15h16v1.5H2z\\\"/><path d=\\\"M12.003 7v5.5a1 1 0 0 1-1 1H2.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H3.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 12h16v1.5H2z\\\"/><path d=\\\"M12.003 7v5.5a1 1 0 0 1-1 1H2.996a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h8.007a1 1 0 0 1 1 1zm-1.506.5H3.5V12h6.997V7.5z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path opacity=\\\".5\\\" d=\\\"M2 3h16v1.5H2zm0 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0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zM1 15.5v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm0-2v1h-1v-1h1zm-19 0v1H0v-1h1zM14.5 2v1h-1V2h1zm2 0v1h-1V2h1zm2 0v1h-1V2h1zm-8 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm8 0v1h-1V2h1zm-10 0v1h-1V2h1z\\\"/><path d=\\\"M7 10H2a2 2 0 0 0-2 2v4a2 2 0 0 0 2 2h5a2 2 0 0 0 2-2v-4a2 2 0 0 0-2-2zm0 1.5a.5.5 0 0 1 .5.5v4a.5.5 0 0 1-.5.5H2a.5.5 0 0 1-.5-.5v-4a.5.5 0 0 1 .5-.5h5z\\\"/></svg>\";","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" viewBox=\\\"0 0 20 20\\\"><path d=\\\"M2.5 17v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zm2 0v1h-1v-1h1zM1 15.5v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm-19-2v1H0v-1h1zm19 0v1h-1v-1h1zm0-2v1h-1v-1h1zm-19 0v1H0v-1h1zM14.5 2v1h-1V2h1zm2 0v1h-1V2h1zm2 0v1h-1V2h1zm-8 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm-2 0v1h-1V2h1zm8 0v1h-1V2h1zm-10 0v1h-1V2h1z\\\"/><path d=\\\"M10 8H2a2 2 0 0 0-2 2v6a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2v-6a2 2 0 0 0-2-2zm0 1.5a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-.5.5H2a.5.5 0 0 1-.5-.5v-6a.5.5 0 0 1 .5-.5h8z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m7.3 17.37-.061.088a1.518 1.518 0 0 1-.934.535l-4.178.663-.806-4.153a1.495 1.495 0 0 1 .187-1.058l.056-.086L8.77 2.639c.958-1.351 2.803-1.076 4.296-.03 1.497 1.047 2.387 2.693 1.433 4.055L7.3 17.37zM9.14 4.728l-5.545 8.346 3.277 2.294 5.544-8.346L9.14 4.728zM6.07 16.512l-3.276-2.295.53 2.73 2.746-.435zM9.994 3.506 13.271 5.8c.316-.452-.16-1.333-1.065-1.966-.905-.634-1.895-.78-2.212-.328zM8 18.5 9.375 17H19v1.5H8z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M6.999 2H15a1 1 0 0 1 0 2h-1.004v13a1 1 0 1 1-2 0V4H8.999v13a1 1 0 1 1-2 0v-7A4 4 0 0 1 3 6a4 4 0 0 1 3.999-4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 10.423a6.5 6.5 0 0 1 6.056-6.408l.038.67C6.448 5.423 5.354 7.663 5.22 10H9c.552 0 .5.432.5.986v4.511c0 .554-.448.503-1 .503h-5c-.552 0-.5-.449-.5-1.003v-4.574zm8 0a6.5 6.5 0 0 1 6.056-6.408l.038.67c-2.646.739-3.74 2.979-3.873 5.315H17c.552 0 .5.432.5.986v4.511c0 .554-.448.503-1 .503h-5c-.552 0-.5-.449-.5-1.003v-4.574z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><circle cx=\\\"9.5\\\" cy=\\\"4.5\\\" r=\\\"1.5\\\"/><circle cx=\\\"9.5\\\" cy=\\\"10.5\\\" r=\\\"1.5\\\"/><circle cx=\\\"9.5\\\" cy=\\\"16.5\\\" r=\\\"1.5\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/bindings/clickoutsidehandler\n */\n\nimport type { DomEmitter } from '@ckeditor/ckeditor5-utils';\n\n/* global document */\n\n/**\n * Handles clicking **outside** of a specified set of elements, then fires an action.\n *\n * **Note**: Actually, the action is executed upon `mousedown`, not `click`. It prevents\n * certain issues when the user keeps holding the mouse button and the UI cannot react\n * properly.\n *\n * @param options Configuration options.\n * @param options.emitter The emitter to which this behavior should be added.\n * @param options.activator Function returning a `Boolean`, to determine whether the handler is active.\n * @param options.contextElements Array of HTML elements or a callback returning an array of HTML elements\n * that determine the scope of the handler. Clicking any of them or their descendants will **not** fire the callback.\n * @param options.callback An action executed by the handler.\n */\nexport default function clickOutsideHandler(\n\t{ emitter, activator, callback, contextElements }: {\n\t\temitter: DomEmitter;\n\t\tactivator: () => boolean;\n\t\tcontextElements: Array<HTMLElement> | ( () => Array<HTMLElement> );\n\t\tcallback: () => void;\n\t}\n): void {\n\temitter.listenTo( document, 'mousedown', ( evt, domEvt ) => {\n\t\tif ( !activator() ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check if `composedPath` is `undefined` in case the browser does not support native shadow DOM.\n\t\t// Can be removed when all supported browsers support native shadow DOM.\n\t\tconst path = typeof domEvt.composedPath == 'function' ? domEvt.composedPath() : [];\n\n\t\tconst contextElementsList = typeof contextElements == 'function' ? contextElements() : contextElements;\n\n\t\tfor ( const contextElement of contextElementsList ) {\n\t\t\tif ( contextElement.contains( domEvt.target as Node ) || path.includes( contextElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\tcallback();\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/bindings/csstransitiondisablermixin\n */\n\nimport type { Constructor, Mixed } from '@ckeditor/ckeditor5-utils';\n\nimport type View from '../view';\n\n/**\n * A mixin that brings the possibility to temporarily disable CSS transitions using\n * {@link module:ui/view~View} methods. It is helpful when, for instance, the transitions should not happen\n * when the view is first displayed but they should work normal in other cases.\n *\n * The methods to control the CSS transitions are:\n * * `disableCssTransitions()` – Adds the `.ck-transitions-disabled` class to the\n * {@link module:ui/view~View#element view element}.\n * * `enableCssTransitions()` – Removes the `.ck-transitions-disabled` class from the\n * {@link module:ui/view~View#element view element}.\n *\n * The usage comes down to:\n *\n * ```ts\n * const MyViewWithCssTransitionDisabler = CssTransitionDisablerMixin( MyView );\n * const view = new MyViewWithCssTransitionDisabler();\n *\n * // ...\n *\n * view.disableCssTransitions();\n * view.show();\n * view.enableCssTransitions();\n * ```\n *\n * @param view View instance that should get this functionality.\n */\nexport default function CssTransitionDisablerMixin<Base extends Constructor<View>>( view: Base ): Mixed<Base, ViewWithCssTransitionDisabler>\n{\n\tabstract class Mixin extends view {\n\t\tdeclare public _isCssTransitionsDisabled: boolean;\n\n\t\tpublic disableCssTransitions() {\n\t\t\tthis._isCssTransitionsDisabled = true;\n\t\t}\n\n\t\tpublic enableCssTransitions() {\n\t\t\tthis._isCssTransitionsDisabled = false;\n\t\t}\n\n\t\tconstructor( ...args: Array<any> ) {\n\t\t\tsuper( ...args );\n\n\t\t\tthis.set( '_isCssTransitionsDisabled', false );\n\t\t\tthis.initializeCssTransitionDisablerMixin();\n\t\t}\n\n\t\tprotected initializeCssTransitionDisablerMixin(): void {\n\t\t\tthis.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\tthis.bindTemplate.if( '_isCssTransitionsDisabled', 'ck-transitions-disabled' )\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n\n\treturn Mixin as any;\n}\n\nexport type ViewWithCssTransitionDisabler = View & {\n\tdisableCssTransitions(): void;\n\tenableCssTransitions(): void;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/bindings/submithandler\n */\n\nimport type View from '../view';\n\n/**\n * A handler useful for {@link module:ui/view~View views} working as HTML forms. It intercepts a native DOM\n * `submit` event, prevents the default web browser behavior (navigation and page reload) and\n * fires the `submit` event on a view instead. Such a custom event can be then used by any\n * {@link module:utils/dom/emittermixin~DomEmitter emitter}, e.g. to serialize the form data.\n *\n * ```ts\n * import submitHandler from '@ckeditor/ckeditor5-ui/src/bindings/submithandler';\n *\n * // ...\n *\n * class AnyFormView extends View {\n * \tconstructor() {\n * \t\tsuper();\n *\n * \t\t// ...\n *\n * \t\tsubmitHandler( {\n * \t\t\tview: this\n * \t\t} );\n * \t}\n * }\n *\n * // ...\n *\n * const view = new AnyFormView();\n *\n * // A sample listener attached by an emitter working with the view.\n * this.listenTo( view, 'submit', () => {\n * \tsaveTheFormData();\n * \thideTheForm();\n * } );\n * ```\n *\n * @param options Configuration options.\n * @param options.view The view which DOM `submit` events should be handled.\n */\nexport default function submitHandler( { view }: { view: View } ): void {\n\tview.listenTo( view.element!, 'submit', ( evt, domEvt ) => {\n\t\tdomEvt.preventDefault();\n\t\tview.fire<SubmitHandlerEvent>( 'submit' );\n\t}, { useCapture: true } );\n}\n\n/**\n * Fired by {@link module:ui/bindings/submithandler~submitHandler} helper.\n *\n * @eventName module:ui/view~View#submit\n */\nexport type SubmitHandlerEvent = {\n\tname: 'submit';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/bindings/addkeyboardhandlingforgrid\n */\n\nimport type { FocusTracker, KeystrokeHandler } from '@ckeditor/ckeditor5-utils';\nimport type { FocusableView } from '../focuscycler';\nimport type ViewCollection from '../viewcollection';\n\n/**\n * A helper that adds a keyboard navigation support (arrow up/down/left/right) for grids.\n *\n * @param options Configuration options.\n * @param options.keystrokeHandler Keystroke handler to register navigation with arrow keys.\n * @param options.focusTracker A focus tracker for grid elements.\n * @param options.gridItems A collection of grid items.\n * @param options.numberOfColumns Number of columns in the grid. Can be specified as a function that returns\n * the number (e.g. for responsive grids).\n * @param options.uiLanguageDirection String of ui language direction.\n */\nexport default function addKeyboardHandlingForGrid(\n\t{ keystrokeHandler, focusTracker, gridItems, numberOfColumns, uiLanguageDirection }: {\n\t\tkeystrokeHandler: KeystrokeHandler;\n\t\tfocusTracker: FocusTracker;\n\t\tgridItems: ViewCollection;\n\t\tnumberOfColumns: number | ( () => number );\n\t\tuiLanguageDirection?: string;\n\t}\n): void {\n\tconst getNumberOfColumns = typeof numberOfColumns === 'number' ? () => numberOfColumns : numberOfColumns;\n\n\tkeystrokeHandler.set( 'arrowright', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\treturn uiLanguageDirection === 'rtl' ?\n\t\t\tgetLeftElementIndex( focusedElementIndex, gridItems.length ) :\n\t\t\tgetRightElementIndex( focusedElementIndex, gridItems.length );\n\t} ) );\n\n\tkeystrokeHandler.set( 'arrowleft', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\treturn uiLanguageDirection === 'rtl' ?\n\t\t\tgetRightElementIndex( focusedElementIndex, gridItems.length ) :\n\t\t\tgetLeftElementIndex( focusedElementIndex, gridItems.length );\n\t} ) );\n\n\tkeystrokeHandler.set( 'arrowup', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\tlet nextIndex = focusedElementIndex - getNumberOfColumns();\n\n\t\tif ( nextIndex < 0 ) {\n\t\t\tnextIndex = focusedElementIndex + getNumberOfColumns() * Math.floor( gridItems.length / getNumberOfColumns() );\n\n\t\t\tif ( nextIndex > gridItems.length - 1 ) {\n\t\t\t\tnextIndex -= getNumberOfColumns();\n\t\t\t}\n\t\t}\n\n\t\treturn nextIndex;\n\t} ) );\n\n\tkeystrokeHandler.set( 'arrowdown', getGridItemFocuser( ( focusedElementIndex, gridItems ) => {\n\t\tlet nextIndex = focusedElementIndex + getNumberOfColumns();\n\n\t\tif ( nextIndex > gridItems.length - 1 ) {\n\t\t\tnextIndex = focusedElementIndex % getNumberOfColumns();\n\t\t}\n\n\t\treturn nextIndex;\n\t} ) );\n\n\tfunction getGridItemFocuser( getIndexToFocus: ( focusedElementIndex: number, gridItems: ViewCollection ) => number ) {\n\t\treturn ( evt: KeyboardEvent ) => {\n\t\t\tconst focusedElement = gridItems.find( item => item.element === focusTracker.focusedElement );\n\t\t\tconst focusedElementIndex = gridItems.getIndex( focusedElement! );\n\t\t\tconst nextIndexToFocus = getIndexToFocus( focusedElementIndex, gridItems );\n\n\t\t\t( gridItems.get( nextIndexToFocus ) as FocusableView ).focus();\n\n\t\t\tevt.stopPropagation();\n\t\t\tevt.preventDefault();\n\t\t};\n\t}\n\n\t/**\n\t * Function returning the next index.\n\t *\n\t * ```\n\t * before: [ ][x][ ]\tafter: [ ][ ][x]\n\t * index = 1            index = 2\n\t * ```\n\t *\n\t * If current index is last, function returns first index.\n\t *\n\t * ```\n\t * before: [ ][ ][x]\tafter: [x][ ][ ]\n\t * index = 2            index = 0\n\t * ```\n\t *\n\t * @param elementIndex Number of current index.\n\t * @param collectionLength A count of collection items.\n\t */\n\tfunction getRightElementIndex( elementIndex: number, collectionLength: number ) {\n\t\tif ( elementIndex === collectionLength - 1 ) {\n\t\t\treturn 0;\n\t\t} else {\n\t\t\treturn elementIndex + 1;\n\t\t}\n\t}\n\n\t/**\n\t * Function returning the previous index.\n\t *\n\t * ```\n\t * before: [ ][x][ ]\tafter: [x][ ][ ]\n\t * index = 1            index = 0\n\t * ```\n\t *\n\t * If current index is first, function returns last index.\n\t *\n\t * ```\n\t * before: [x][ ][ ]\tafter: [ ][ ][x]\n\t * index = 0            index = 2\n\t * ```\n\t *\n\t * @param elementIndex Number of current index.\n\t * @param collectionLength A count of collection items.\n\t */\n\tfunction getLeftElementIndex( elementIndex: number, collectionLength: number ) {\n\t\tif ( elementIndex === 0 ) {\n\t\t\treturn collectionLength - 1;\n\t\t} else {\n\t\t\treturn elementIndex - 1;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/viewcollection\n */\n\nimport {\n\tCKEditorError,\n\tCollection,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype EmitterMixinDelegateChain\n} from '@ckeditor/ckeditor5-utils';\n\nimport type View from './view';\n\n/**\n * Collects {@link module:ui/view~View} instances.\n *\n * ```ts\n * const parentView = new ParentView( locale );\n * const collection = new ViewCollection( locale );\n *\n * collection.setParent( parentView.element );\n *\n * const viewA = new ChildView( locale );\n * const viewB = new ChildView( locale );\n * ```\n *\n * View collection renders and manages view {@link module:ui/view~View#element elements}:\n *\n * ```ts\n * collection.add( viewA );\n * collection.add( viewB );\n *\n * console.log( parentView.element.firsChild ); // -> viewA.element\n * console.log( parentView.element.lastChild ); // -> viewB.element\n * ```\n *\n * It {@link module:ui/viewcollection~ViewCollection#delegate propagates} DOM events too:\n *\n * ```ts\n * // Delegate #click and #keydown events from viewA and viewB to the parentView.\n * collection.delegate( 'click' ).to( parentView );\n *\n * parentView.on( 'click', ( evt ) => {\n * \tconsole.log( `${ evt.source } has been clicked.` );\n * } );\n *\n * // This event will be delegated to the parentView.\n * viewB.fire( 'click' );\n * ```\n *\n * **Note**: A view collection can be used directly in the {@link module:ui/template~TemplateDefinition definition}\n * of a {@link module:ui/template~Template template}.\n */\nexport default class ViewCollection<TView extends View = View> extends Collection<TView> {\n\tpublic id?: string;\n\n\t/**\n\t * A parent element within which child views are rendered and managed in DOM.\n\t */\n\tprivate _parentElement: DocumentFragment | HTMLElement | null;\n\n\t/**\n\t * Creates a new instance of the {@link module:ui/viewcollection~ViewCollection}.\n\t *\n\t * @param initialItems The initial items of the collection.\n\t */\n\tconstructor( initialItems: Iterable<TView> = [] ) {\n\t\tsuper( initialItems, {\n\t\t\t// An #id Number attribute should be legal and not break the `ViewCollection` instance.\n\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/93\n\t\t\tidProperty: 'viewUid'\n\t\t} );\n\n\t\t// Handle {@link module:ui/view~View#element} in DOM when a new view is added to the collection.\n\t\tthis.on<CollectionAddEvent<TView>>( 'add', ( evt, view, index ) => {\n\t\t\tthis._renderViewIntoCollectionParent( view, index );\n\t\t} );\n\n\t\t// Handle {@link module:ui/view~View#element} in DOM when a view is removed from the collection.\n\t\tthis.on<CollectionRemoveEvent<TView>>( 'remove', ( evt, view ) => {\n\t\t\tif ( view.element && this._parentElement ) {\n\t\t\t\tview.element.remove();\n\t\t\t}\n\t\t} );\n\n\t\tthis._parentElement = null;\n\t}\n\n\t/**\n\t * Destroys the view collection along with child views.\n\t * See the view {@link module:ui/view~View#destroy} method.\n\t */\n\tpublic destroy(): void {\n\t\tthis.map( view => view.destroy() );\n\t}\n\n\t/**\n\t * Sets the parent HTML element of this collection. When parent is set, {@link #add adding} and\n\t * {@link #remove removing} views in the collection synchronizes their\n\t * {@link module:ui/view~View#element elements} in the parent element.\n\t *\n\t * @param element A new parent element.\n\t */\n\tpublic setParent( elementOrDocFragment: DocumentFragment | HTMLElement ): void {\n\t\tthis._parentElement = elementOrDocFragment;\n\n\t\t// Take care of the initial collection items passed to the constructor.\n\t\tfor ( const view of this ) {\n\t\t\tthis._renderViewIntoCollectionParent( view );\n\t\t}\n\t}\n\n\t/**\n\t * Delegates selected events coming from within views in the collection to any\n\t * {@link module:utils/emittermixin~Emitter}.\n\t *\n\t * For the following views and collection:\n\t *\n\t * ```ts\n\t * const viewA = new View();\n\t * const viewB = new View();\n\t * const viewC = new View();\n\t *\n\t * const views = parentView.createCollection();\n\t *\n\t * views.delegate( 'eventX' ).to( viewB );\n\t * views.delegate( 'eventX', 'eventY' ).to( viewC );\n\t *\n\t * views.add( viewA );\n\t * ```\n\t *\n\t * the `eventX` is delegated (fired by) `viewB` and `viewC` along with `customData`:\n\t *\n\t * ```ts\n\t * viewA.fire( 'eventX', customData );\n\t * ```\n\t *\n\t * and `eventY` is delegated (fired by) `viewC` along with `customData`:\n\t *\n\t * ```ts\n\t * viewA.fire( 'eventY', customData );\n\t * ```\n\t *\n\t * See {@link module:utils/emittermixin~Emitter#delegate}.\n\t *\n\t * @param events {@link module:ui/view~View} event names to be delegated to another\n\t * {@link module:utils/emittermixin~Emitter}.\n\t * @returns Object with `to` property, a function which accepts the destination\n\t * of {@link module:utils/emittermixin~Emitter#delegate delegated} events.\n\t */\n\tpublic override delegate( ...events: Array<string> ): EmitterMixinDelegateChain {\n\t\tif ( !events.length || !isStringArray( events ) ) {\n\t\t\t/**\n\t\t\t * All event names must be strings.\n\t\t\t *\n\t\t\t * @error ui-viewcollection-delegate-wrong-events\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-viewcollection-delegate-wrong-events',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\treturn {\n\t\t\tto: dest => {\n\t\t\t\t// Activate delegating on existing views in this collection.\n\t\t\t\tfor ( const view of this ) {\n\t\t\t\t\tfor ( const evtName of events ) {\n\t\t\t\t\t\tview.delegate( evtName ).to( dest );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Activate delegating on future views in this collection.\n\t\t\t\tthis.on<CollectionAddEvent<View>>( 'add', ( evt, view ) => {\n\t\t\t\t\tfor ( const evtName of events ) {\n\t\t\t\t\t\tview.delegate( evtName ).to( dest );\n\t\t\t\t\t}\n\t\t\t\t} );\n\n\t\t\t\t// Deactivate delegating when view is removed from this collection.\n\t\t\t\tthis.on<CollectionRemoveEvent<View>>( 'remove', ( evt, view ) => {\n\t\t\t\t\tfor ( const evtName of events ) {\n\t\t\t\t\t\tview.stopDelegating( evtName, dest );\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t}\n\t\t};\n\t}\n\n\t/**\n\t * This method {@link module:ui/view~View#render renders} a new view added to the collection.\n\t *\n\t * If the {@link #_parentElement parent element} of the collection is set, this method also adds\n\t * the view's {@link module:ui/view~View#element} as a child of the parent in DOM at a specified index.\n\t *\n\t * **Note**: If index is not specified, the view's element is pushed as the last child\n\t * of the parent element.\n\t *\n\t * @param view A new view added to the collection.\n\t * @param index An index the view holds in the collection. When not specified,\n\t * the view is added at the end.\n\t */\n\tprivate _renderViewIntoCollectionParent( view: View, index?: number ): void {\n\t\tif ( !view.isRendered ) {\n\t\t\tview.render();\n\t\t}\n\n\t\tif ( view.element && this._parentElement ) {\n\t\t\tthis._parentElement.insertBefore( view.element, this._parentElement.children[ index! ] );\n\t\t}\n\t}\n\n\t/**\n\t * Removes a child view from the collection. If the {@link #setParent parent element} of the\n\t * collection has been set, the {@link module:ui/view~View#element element} of the view is also removed\n\t * in DOM, reflecting the order of the collection.\n\t *\n\t * See the {@link #add} method.\n\t *\n\t * @param subject The view to remove, its id or index in the collection.\n\t * @returns The removed view.\n\t */\n\tpublic override remove( subject: TView | number | string ): TView {\n\t\treturn super.remove( subject );\n\t}\n}\n\n/**\n * Check if all entries of the array are of `String` type.\n *\n * @param arr An array to be checked.\n */\nfunction isStringArray( arr: Array<unknown> ): arr is Array<string> {\n\treturn arr.every( a => typeof a == 'string' );\n}\n","import api from \"!../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../node_modules/css-loader/dist/cjs.js!../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./globals.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* eslint-disable @typescript-eslint/no-invalid-void-type */\n\n/**\n * @module ui/view\n */\n\nimport ViewCollection from './viewcollection';\nimport Template, { type BindChain, type TemplateDefinition } from './template';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tDomEmitterMixin,\n\tObservableMixin,\n\tisIterable,\n\ttype CollectionAddEvent,\n\ttype DecoratedMethodEvent,\n\ttype Locale,\n\ttype LocaleTranslate\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../theme/globals/globals.css';\n\n/**\n * The basic view class, which represents an HTML element created out of a\n * {@link module:ui/view~View#template}. Views are building blocks of the user interface and handle\n * interaction\n *\n * Views {@link module:ui/view~View#registerChild aggregate} children in\n * {@link module:ui/view~View#createCollection collections} and manage the life cycle of DOM\n * listeners e.g. by handling rendering and destruction.\n *\n * See the {@link module:ui/template~TemplateDefinition} syntax to learn more about shaping view\n * elements, attributes and listeners.\n *\n * ```ts\n * class SampleView extends View {\n * \tconstructor( locale ) {\n * \t\tsuper( locale );\n *\n * \t\tconst bind = this.bindTemplate;\n *\n * \t\t// Views define their interface (state) using observable attributes.\n * \t\tthis.set( 'elementClass', 'bar' );\n *\n * \t\tthis.setTemplate( {\n * \t\t\ttag: 'p',\n *\n * \t\t\t// The element of the view can be defined with its children.\n * \t\t\tchildren: [\n * \t\t\t\t'Hello',\n * \t\t\t\t{\n * \t\t\t\t\ttag: 'b',\n * \t\t\t\t\tchildren: [ 'world!' ]\n * \t\t\t\t}\n * \t\t\t],\n * \t\t\tattributes: {\n * \t\t\t\tclass: [\n * \t\t\t\t\t'foo',\n *\n * \t\t\t\t\t// Observable attributes control the state of the view in DOM.\n * \t\t\t\t\tbind.to( 'elementClass' )\n * \t\t\t\t]\n * \t\t\t},\n * \t\t\ton: {\n * \t\t\t\t// Views listen to DOM events and propagate them.\n * \t\t\t\tclick: bind.to( 'clicked' )\n * \t\t\t}\n * \t\t} );\n * \t}\n * }\n *\n * const view = new SampleView( locale );\n *\n * view.render();\n *\n * // Append <p class=\"foo bar\">Hello<b>world</b></p> to the <body>\n * document.body.appendChild( view.element );\n *\n * // Change the class attribute to <p class=\"foo baz\">Hello<b>world</b></p>\n * view.elementClass = 'baz';\n *\n * // Respond to the \"click\" event in DOM by executing a custom action.\n * view.on( 'clicked', () => {\n * \tconsole.log( 'The view has been clicked!' );\n * } );\n * ```\n */\nexport default class View<TElement extends HTMLElement = HTMLElement> extends DomEmitterMixin( ObservableMixin() ) {\n\t/**\n\t * An HTML element of the view. `null` until {@link #render rendered}\n\t * from the {@link #template}.\n\t *\n\t * ```ts\n\t * class SampleView extends View {\n\t * \tconstructor() {\n\t * \t\tsuper();\n\t *\n\t * \t\t// A template instance the #element will be created from.\n\t * \t\tthis.setTemplate( {\n\t * \t\t\ttag: 'p'\n\t *\n\t * \t\t\t// ...\n\t * \t\t} );\n\t * \t}\n\t * }\n\t *\n\t * const view = new SampleView();\n\t *\n\t * // Renders the #template.\n\t * view.render();\n\t *\n\t * // Append the HTML element of the view to <body>.\n\t * document.body.appendChild( view.element );\n\t * ```\n\t *\n\t * **Note**: The element of the view can also be assigned directly:\n\t *\n\t * ```ts\n\t * view.element = document.querySelector( '#my-container' );\n\t * ```\n\t */\n\tpublic element: TElement | null;\n\n\t/**\n\t * Set `true` when the view has already been {@link module:ui/view~View#render rendered}.\n\t *\n\t * @readonly\n\t */\n\tpublic isRendered: boolean;\n\n\t/**\n\t * A set of tools to localize the user interface.\n\t *\n\t * Also see {@link module:core/editor/editor~Editor#locale}.\n\t *\n\t * @readonly\n\t */\n\tpublic locale: Locale | undefined;\n\n\t/**\n\t * Shorthand for {@link module:utils/locale~Locale#t}.\n\t *\n\t * Note: If {@link #locale} instance hasn't been passed to the view this method may not\n\t * be available.\n\t *\n\t * @see module:utils/locale~Locale#t\n\t */\n\tpublic t: LocaleTranslate | undefined;\n\n\t/**\n\t * Template of this view. It provides the {@link #element} representing\n\t * the view in DOM, which is {@link #render rendered}.\n\t */\n\tpublic template?: Template;\n\n\tpublic viewUid?: string;\n\n\t/**\n\t * Collections registered with {@link #createCollection}.\n\t */\n\tprotected _viewCollections: Collection<ViewCollection>;\n\n\t/**\n\t * A collection of view instances, which have been added directly\n\t * into the {@link module:ui/template~Template#children}.\n\t */\n\tprotected _unboundChildren: ViewCollection;\n\n\t/**\n\t * Cached {@link module:ui/template~BindChain bind chain} object created by the\n\t * {@link #template}. See {@link #bindTemplate}.\n\t */\n\tprivate _bindTemplate?: BindChain<this>;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/view~View} class.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param locale The localization services instance.\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper();\n\n\t\tthis.element = null;\n\t\tthis.isRendered = false;\n\n\t\tthis.locale = locale;\n\t\tthis.t = locale && locale.t;\n\n\t\tthis._viewCollections = new Collection();\n\t\tthis._unboundChildren = this.createCollection();\n\n\t\t// Pass parent locale to its children.\n\t\tthis._viewCollections.on<CollectionAddEvent<View>>( 'add', ( evt, collection ) => {\n\t\t\tcollection.locale = locale;\n\t\t\tcollection.t = locale && locale.t;\n\t\t} );\n\n\t\tthis.decorate( 'render' );\n\t}\n\n\t/**\n\t * Shorthand for {@link module:ui/template~Template.bind}, a binding\n\t * {@link module:ui/template~BindChain interface} pre–configured for the view instance.\n\t *\n\t * It provides {@link module:ui/template~BindChain#to `to()`} and\n\t * {@link module:ui/template~BindChain#if `if()`} methods that initialize bindings with\n\t * observable attributes and attach DOM listeners.\n\t *\n\t * ```ts\n\t * class SampleView extends View {\n\t * \tconstructor( locale ) {\n\t * \t\tsuper( locale );\n\t *\n\t * \t\tconst bind = this.bindTemplate;\n\t *\n\t * \t\t// These {@link module:utils/observablemixin~Observable observable} attributes will control\n\t * \t\t// the state of the view in DOM.\n\t * \t\tthis.set( {\n\t * \t\t\telementClass: 'foo',\n\t * \t\t \tisEnabled: true\n\t * \t\t } );\n\t *\n\t * \t\tthis.setTemplate( {\n\t * \t\t\ttag: 'p',\n\t *\n\t * \t\t\tattributes: {\n\t * \t\t\t\t// The class HTML attribute will follow elementClass\n\t * \t\t\t\t// and isEnabled view attributes.\n\t * \t\t\t\tclass: [\n\t * \t\t\t\t\tbind.to( 'elementClass' )\n\t * \t\t\t\t\tbind.if( 'isEnabled', 'present-when-enabled' )\n\t * \t\t\t\t]\n\t * \t\t\t},\n\t *\n\t * \t\t\ton: {\n\t * \t\t\t\t// The view will fire the \"clicked\" event upon clicking <p> in DOM.\n\t * \t\t\t\tclick: bind.to( 'clicked' )\n\t * \t\t\t}\n\t * \t\t} );\n\t * \t}\n\t * }\n\t * ```\n\t */\n\tpublic get bindTemplate(): BindChain<this> {\n\t\tif ( this._bindTemplate ) {\n\t\t\treturn this._bindTemplate;\n\t\t}\n\n\t\treturn ( this._bindTemplate = Template.bind( this, this ) );\n\t}\n\n\t/**\n\t * Creates a new collection of views, which can be used as\n\t * {@link module:ui/template~Template#children} of this view.\n\t *\n\t * ```ts\n\t * class SampleView extends View {\n\t * \tconstructor( locale ) {\n\t * \t\tsuper( locale );\n\t *\n\t * \t\tconst child = new ChildView( locale );\n\t * \t\tthis.items = this.createCollection( [ child ] );\n \t *\n\t * \t\tthis.setTemplate( {\n\t * \t\t\ttag: 'p',\n\t *\n\t * \t\t\t// `items` collection will render here.\n\t * \t\t\tchildren: this.items\n\t * \t\t} );\n\t * \t}\n\t * }\n\t *\n\t * const view = new SampleView( locale );\n\t * view.render();\n\t *\n\t * // It will append <p><child#element></p> to the <body>.\n\t * document.body.appendChild( view.element );\n\t * ```\n\t *\n\t * @param views Initial views of the collection.\n\t * @returns A new collection of view instances.\n\t */\n\tpublic createCollection<T extends View = View>( views?: Iterable<T> ): ViewCollection<T> {\n\t\tconst collection = new ViewCollection<T>( views );\n\n\t\tthis._viewCollections.add( collection );\n\n\t\treturn collection;\n\t}\n\n\t/**\n\t * Registers a new child view under the view instance. Once registered, a child\n\t * view is managed by its parent, including {@link #render rendering}\n\t * and {@link #destroy destruction}.\n\t *\n\t * To revert this, use {@link #deregisterChild}.\n\t *\n\t * ```ts\n\t * class SampleView extends View {\n\t * \tconstructor( locale ) {\n\t * \t\tsuper( locale );\n\t *\n\t * \t\tthis.childA = new SomeChildView( locale );\n\t * \t\tthis.childB = new SomeChildView( locale );\n\t *\n\t * \t\tthis.setTemplate( { tag: 'p' } );\n\t *\n\t * \t\t// Register the children.\n\t * \t\tthis.registerChild( [ this.childA, this.childB ] );\n\t * \t}\n\t *\n\t * \trender() {\n\t * \t\tsuper.render();\n\t *\n\t * \t\tthis.element.appendChild( this.childA.element );\n\t * \t\tthis.element.appendChild( this.childB.element );\n\t * \t}\n\t * }\n\t *\n\t * const view = new SampleView( locale );\n\t *\n\t * view.render();\n\t *\n\t * // Will append <p><childA#element><b></b><childB#element></p>.\n\t * document.body.appendChild( view.element );\n\t * ```\n\t *\n\t * **Note**: There's no need to add child views if they're already referenced in the\n\t * {@link #template}:\n\t *\n\t * ```ts\n\t * class SampleView extends View {\n\t * \tconstructor( locale ) {\n\t * \t\tsuper( locale );\n\t *\n\t * \t\tthis.childA = new SomeChildView( locale );\n\t * \t\tthis.childB = new SomeChildView( locale );\n\t *\n\t * \t\tthis.setTemplate( {\n\t * \t\t\ttag: 'p',\n\t *\n \t * \t\t\t// These children will be added automatically. There's no\n \t * \t\t\t// need to call {@link #registerChild} for any of them.\n\t * \t\t\tchildren: [ this.childA, this.childB ]\n\t * \t\t} );\n\t * \t}\n\t *\n\t * \t// ...\n\t * }\n\t * ```\n\t *\n\t * @param children Children views to be registered.\n\t */\n\tpublic registerChild( children: View | Iterable<View> ): void {\n\t\tif ( !isIterable( children ) ) {\n\t\t\tchildren = [ children ];\n\t\t}\n\n\t\tfor ( const child of children ) {\n\t\t\tthis._unboundChildren.add( child );\n\t\t}\n\t}\n\n\t/**\n\t * The opposite of {@link #registerChild}. Removes a child view from this view instance.\n\t * Once removed, the child is no longer managed by its parent, e.g. it can safely\n\t * become a child of another parent view.\n\t *\n\t * @see #registerChild\n\t * @param children Child views to be removed.\n\t */\n\tpublic deregisterChild( children: View | Iterable<View> ): void {\n\t\tif ( !isIterable( children ) ) {\n\t\t\tchildren = [ children ];\n\t\t}\n\n\t\tfor ( const child of children ) {\n\t\t\tthis._unboundChildren.remove( child );\n\t\t}\n\t}\n\n\t/**\n\t * Sets the {@link #template} of the view with with given definition.\n\t *\n\t * A shorthand for:\n\t *\n\t * ```ts\n\t * view.setTemplate( definition );\n\t * ```\n\t *\n\t * @param definition Definition of view's template.\n\t */\n\tpublic setTemplate( definition: TemplateDefinition ): void {\n\t\tthis.template = new Template( definition );\n\t}\n\n\t/**\n\t * {@link module:ui/template~Template.extend Extends} the {@link #template} of the view with\n\t * with given definition.\n\t *\n\t * A shorthand for:\n\t *\n\t * ```ts\n\t * Template.extend( view.template, definition );\n\t * ```\n\t *\n\t * **Note**: Is requires the {@link #template} to be already set. See {@link #setTemplate}.\n\t *\n\t * @param definition Definition which extends the {@link #template}.\n\t */\n\tpublic extendTemplate( definition: Partial<TemplateDefinition> ): void {\n\t\tTemplate.extend( this.template!, definition );\n\t}\n\n\t/**\n\t * Recursively renders the view.\n\t *\n\t * Once the view is rendered:\n\t * * the {@link #element} becomes an HTML element out of {@link #template},\n\t * * the {@link #isRendered} flag is set `true`.\n\t *\n\t * **Note**: The children of the view:\n\t * * defined directly in the {@link #template}\n\t * * residing in collections created by the {@link #createCollection} method,\n\t * * and added by {@link #registerChild}\n\t * are also rendered in the process.\n\t *\n\t * In general, `render()` method is the right place to keep the code which refers to the\n\t * {@link #element} and should be executed at the very beginning of the view's life cycle.\n\t *\n\t * It is possible to {@link module:ui/template~Template.extend} the {@link #template} before\n\t * the view is rendered. To allow an early customization of the view (e.g. by its parent),\n\t * such references should be done in `render()`.\n\t *\n\t * ```ts\n\t * class SampleView extends View {\n\t * \tconstructor() {\n\t * \t\tthis.setTemplate( {\n\t * \t\t\t// ...\n\t * \t\t} );\n\t * \t},\n\t *\n\t * \trender() {\n\t * \t\t// View#element becomes available.\n\t * \t\tsuper.render();\n\t *\n\t * \t\t// The \"scroll\" listener depends on #element.\n\t * \t\tthis.listenTo( window, 'scroll', () => {\n\t * \t\t\t// A reference to #element would render the #template and make it non-extendable.\n\t * \t\t\tif ( window.scrollY > 0 ) {\n\t * \t\t\t\tthis.element.scrollLeft = 100;\n\t * \t\t\t} else {\n\t * \t\t\t\tthis.element.scrollLeft = 0;\n\t * \t\t\t}\n\t * \t\t} );\n\t * \t}\n\t * }\n\t *\n\t * const view = new SampleView();\n\t *\n\t * // Let's customize the view before it gets rendered.\n\t * view.extendTemplate( {\n\t * \tattributes: {\n\t * \t\tclass: [\n\t * \t\t\t'additional-class'\n\t * \t\t]\n\t * \t}\n\t * } );\n\t *\n\t * // Late rendering allows customization of the view.\n\t * view.render();\n\t * ```\n\t */\n\tpublic render(): void {\n\t\tif ( this.isRendered ) {\n\t\t\t/**\n\t\t\t * This View has already been rendered.\n\t\t\t *\n\t\t\t * @error ui-view-render-already-rendered\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'ui-view-render-already-rendered', this );\n\t\t}\n\n\t\t// Render #element of the view.\n\t\tif ( this.template ) {\n\t\t\tthis.element = this.template.render() as TElement;\n\n\t\t\t// Auto–register view children from #template.\n\t\t\tthis.registerChild( this.template.getViews() );\n\t\t}\n\n\t\tthis.isRendered = true;\n\t}\n\n\t/**\n\t * Recursively destroys the view instance and child views added by {@link #registerChild} and\n\t * residing in collections created by the {@link #createCollection}.\n\t *\n\t * Destruction disables all event listeners:\n\t * * created on the view, e.g. `view.on( 'event', () => {} )`,\n\t * * defined in the {@link #template} for DOM events.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\n\t\tthis._viewCollections.map( c => c.destroy() );\n\n\t\t// Template isn't obligatory for views.\n\t\tif ( this.template && ( this.template as any )._revertData ) {\n\t\t\tthis.template.revert( this.element! );\n\t\t}\n\t}\n}\n\n/**\n * Event fired by the {@link module:ui/view~View#render} method. Actual rendering is executed as a listener to\n * this event with the default priority.\n *\n * See {@link module:utils/observablemixin~Observable#decorate} for more information and samples.\n *\n * @eventName ~View#render\n */\nexport type UIViewRenderEvent = DecoratedMethodEvent<View, 'render'>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/template\n */\n\n/* global document */\n\nimport View from './view';\nimport ViewCollection from './viewcollection';\n\nimport {\n\tCKEditorError,\n\tEmitterMixin,\n\tisNode,\n\ttoArray,\n\ttype ArrayOrItem,\n\ttype Emitter,\n\ttype Observable,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport { isObject, cloneDeepWith } from 'lodash-es';\n\nconst xhtmlNs = 'http://www.w3.org/1999/xhtml';\n\n/**\n * A basic Template class. It renders a DOM HTML element or text from a\n * {@link module:ui/template~TemplateDefinition definition} and supports element attributes, children,\n * bindings to {@link module:utils/observablemixin~Observable observables} and DOM event propagation.\n *\n * A simple template can look like this:\n *\n * ```ts\n * const bind = Template.bind( observable, emitter );\n *\n * new Template( {\n * \ttag: 'p',\n * \tattributes: {\n * \t\tclass: 'foo',\n * \t\tstyle: {\n * \t\t\tbackgroundColor: 'yellow'\n * \t\t}\n * \t},\n * \ton: {\n * \t\tclick: bind.to( 'clicked' )\n * \t},\n * \tchildren: [\n * \t\t'A paragraph.'\n * \t]\n * } ).render();\n * ```\n *\n * and it will render the following HTML element:\n *\n * ```html\n * <p class=\"foo\" style=\"background-color: yellow;\">A paragraph.</p>\n * ```\n *\n * Additionally, the `observable` will always fire `clicked` upon clicking `<p>` in the DOM.\n *\n * See {@link module:ui/template~TemplateDefinition} to know more about templates and complex\n * template definitions.\n */\nexport default class Template extends EmitterMixin() {\n\tpublic ns?: string;\n\n\t/**\n\t * The tag (`tagName`) of this template, e.g. `div`. It also indicates that the template\n\t * renders to an HTML element.\n\t */\n\tpublic tag?: string;\n\n\t/**\n\t * The text of the template. It also indicates that the template renders to a DOM text node.\n\t */\n\tpublic text?: Array<TemplateSimpleValue | TemplateBinding>;\n\n\t/**\n\t * The attributes of the template, e.g. `{ id: [ 'ck-id' ] }`, corresponding with\n\t * the attributes of an HTML element.\n\t *\n\t * **Note**: This property only makes sense when {@link #tag} is defined.\n\t */\n\tpublic attributes?: Record<string, AttributeValues>;\n\n\t/**\n\t * The children of the template. They can be either:\n\t * * independent instances of {@link ~Template} (sub–templates),\n\t * * native DOM Nodes.\n\t *\n\t * **Note**: This property only makes sense when {@link #tag} is defined.\n\t */\n\tpublic children?: Array<ViewCollection | View | Node | Template>;\n\n\t/**\n\t * The DOM event listeners of the template.\n\t */\n\tpublic eventListeners?: Record<string, Array<TemplateToBinding>>;\n\n\t/**\n\t * Indicates whether this particular Template instance has been\n\t * {@link #render rendered}.\n\t */\n\tprivate _isRendered: boolean;\n\n\t/**\n\t * The data used by the {@link #revert} method to restore a node to its original state.\n\t *\n\t * See: {@link #apply}.\n\t */\n\tprivate _revertData: RevertData | null;\n\n\t/**\n\t * Creates an instance of the {@link ~Template} class.\n\t *\n\t * @param def The definition of the template.\n\t */\n\tconstructor( def: TemplateDefinition ) {\n\t\tsuper();\n\n\t\tObject.assign( this, normalize( clone( def ) ) );\n\n\t\tthis._isRendered = false;\n\t\tthis._revertData = null;\n\t}\n\n\t/**\n\t * Renders a DOM Node (an HTML element or text) out of the template.\n\t *\n\t * ```ts\n\t * const domNode = new Template( { ... } ).render();\n\t * ```\n\t *\n\t * See: {@link #apply}.\n\t */\n\tpublic render(): HTMLElement | Text {\n\t\tconst node = this._renderNode( {\n\t\t\tintoFragment: true\n\t\t} as any );\n\n\t\tthis._isRendered = true;\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Applies the template to an existing DOM Node, either HTML element or text.\n\t *\n\t * **Note:** No new DOM nodes will be created. Applying extends:\n\t *\n\t * {@link module:ui/template~TemplateDefinition attributes},\n\t * {@link module:ui/template~TemplateDefinition event listeners}, and\n\t * `textContent` of {@link module:ui/template~TemplateDefinition children} only.\n\t *\n\t * **Note:** Existing `class` and `style` attributes are extended when a template\n\t * is applied to an HTML element, while other attributes and `textContent` are overridden.\n\t *\n\t * **Note:** The process of applying a template can be easily reverted using the\n\t * {@link module:ui/template~Template#revert} method.\n\t *\n\t * ```ts\n\t * const element = document.createElement( 'div' );\n\t * const observable = new Model( { divClass: 'my-div' } );\n\t * const emitter = Object.create( EmitterMixin );\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * new Template( {\n\t * \tattributes: {\n\t * \t\tid: 'first-div',\n\t * \t\tclass: bind.to( 'divClass' )\n\t * \t},\n\t * \ton: {\n\t * \t\tclick: bind( 'elementClicked' ) // Will be fired by the observable.\n\t * \t},\n\t * \tchildren: [\n\t * \t\t'Div text.'\n\t * \t]\n\t * } ).apply( element );\n\t *\n\t * console.log( element.outerHTML ); // -> '<div id=\"first-div\" class=\"my-div\"></div>'\n\t * ```\n\t *\n\t * @see module:ui/template~Template#render\n\t * @see module:ui/template~Template#revert\n\t * @param node Root node for the template to apply.\n\t */\n\tpublic apply( node: HTMLElement | Text ): HTMLElement | Text {\n\t\tthis._revertData = getEmptyRevertData();\n\n\t\tthis._renderNode( {\n\t\t\tnode,\n\t\t\tintoFragment: false,\n\t\t\tisApplying: true,\n\t\t\trevertData: this._revertData\n\t\t} );\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Reverts a template {@link module:ui/template~Template#apply applied} to a DOM node.\n\t *\n\t * @param node The root node for the template to revert. In most of the cases, it is the\n\t * same node used by {@link module:ui/template~Template#apply}.\n\t */\n\tpublic revert( node: HTMLElement | Text ): void {\n\t\tif ( !this._revertData ) {\n\t\t\t/**\n\t\t\t * Attempting to revert a template which has not been applied yet.\n\t\t\t *\n\t\t\t * @error ui-template-revert-not-applied\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-template-revert-not-applied',\n\t\t\t\t[ this, node ]\n\t\t\t);\n\t\t}\n\n\t\tthis._revertTemplateFromNode( node, this._revertData );\n\t}\n\n\t/**\n\t * Returns an iterator which traverses the template in search of {@link module:ui/view~View}\n\t * instances and returns them one by one.\n\t *\n\t * ```ts\n\t * const viewFoo = new View();\n\t * const viewBar = new View();\n\t * const viewBaz = new View();\n\t * const template = new Template( {\n\t * \ttag: 'div',\n\t * \tchildren: [\n\t * \t\tviewFoo,\n\t * \t\t{\n\t * \t\t\ttag: 'div',\n\t * \t\t\tchildren: [\n\t * \t\t\t\tviewBar\n\t * \t\t\t]\n\t * \t\t},\n\t * \t\tviewBaz\n\t * \t]\n\t * } );\n\t *\n\t * // Logs: viewFoo, viewBar, viewBaz\n\t * for ( const view of template.getViews() ) {\n\t * \tconsole.log( view );\n\t * }\n\t * ```\n\t */\n\tpublic* getViews(): IterableIterator<View> {\n\t\tfunction* search( def: Template ): Iterable<View> {\n\t\t\tif ( def.children ) {\n\t\t\t\tfor ( const child of def.children ) {\n\t\t\t\t\tif ( isView( child ) ) {\n\t\t\t\t\t\tyield child;\n\t\t\t\t\t} else if ( isTemplate( child ) ) {\n\t\t\t\t\t\tyield* search( child );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tyield* search( this );\n\t}\n\n\t/**\n\t * An entry point to the interface which binds DOM nodes to\n\t * {@link module:utils/observablemixin~Observable observables}.\n\t * There are two types of bindings:\n\t *\n\t * * HTML element attributes or text `textContent` synchronized with attributes of an\n\t * {@link module:utils/observablemixin~Observable}. Learn more about {@link module:ui/template~BindChain#to}\n\t * and {@link module:ui/template~BindChain#if}.\n\t *\n\t * ```ts\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * new Template( {\n\t * \tattributes: {\n\t * \t\t// Binds the element \"class\" attribute to observable#classAttribute.\n\t * \t\tclass: bind.to( 'classAttribute' )\n\t * \t}\n\t * } ).render();\n\t * ```\n\t *\n\t * * DOM events fired on HTML element propagated through\n\t * {@link module:utils/observablemixin~Observable}. Learn more about {@link module:ui/template~BindChain#to}.\n\t *\n\t * ```ts\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * new Template( {\n\t * \ton: {\n\t * \t\t// Will be fired by the observable.\n\t * \t\tclick: bind( 'elementClicked' )\n\t * \t}\n\t * } ).render();\n\t * ```\n\t *\n\t * Also see {@link module:ui/view~View#bindTemplate}.\n\t *\n\t * @param observable An observable which provides boundable attributes.\n\t * @param emitter An emitter that listens to observable attribute\n\t * changes or DOM Events (depending on the kind of the binding). Usually, a {@link module:ui/view~View} instance.\n\t */\n\tpublic static override bind<TObservable extends Observable>(\n\t\tobservable: TObservable,\n\t\temitter: Emitter\n\t): BindChain<TObservable> {\n\t\treturn {\n\t\t\tto( eventNameOrFunctionOrAttribute: any, callback?: any ) {\n\t\t\t\treturn new TemplateToBinding( {\n\t\t\t\t\teventNameOrFunction: eventNameOrFunctionOrAttribute,\n\t\t\t\t\tattribute: eventNameOrFunctionOrAttribute,\n\t\t\t\t\tobservable, emitter, callback\n\t\t\t\t} );\n\t\t\t},\n\n\t\t\tif( attribute: string, valueIfTrue?: string, callback?: any ) {\n\t\t\t\treturn new TemplateIfBinding( {\n\t\t\t\t\tobservable, emitter, attribute, valueIfTrue, callback\n\t\t\t\t} );\n\t\t\t}\n\t\t} as any;\n\t}\n\n\t/**\n\t * Extends an existing {@link module:ui/template~Template} instance with some additional content\n\t * from another {@link module:ui/template~TemplateDefinition}.\n\t *\n\t * ```ts\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * const template = new Template( {\n\t * \ttag: 'p',\n\t * \tattributes: {\n\t * \t\tclass: 'a',\n\t * \t\tdata-x: bind.to( 'foo' )\n\t * \t},\n\t * \tchildren: [\n\t * \t\t{\n\t * \t\t\ttag: 'span',\n\t * \t\t\tattributes: {\n\t * \t\t\t\tclass: 'b'\n\t * \t\t\t},\n\t * \t\t\tchildren: [\n\t * \t\t\t\t'Span'\n\t * \t\t\t]\n\t * \t\t}\n\t * \t]\n\t *  } );\n\t *\n\t * // Instance-level extension.\n\t * Template.extend( template, {\n\t * \tattributes: {\n\t * \t\tclass: 'b',\n\t * \t\tdata-x: bind.to( 'bar' )\n\t * \t},\n\t * \tchildren: [\n\t * \t\t{\n\t * \t\t\tattributes: {\n\t * \t\t\t\tclass: 'c'\n\t * \t\t\t}\n\t * \t\t}\n\t * \t]\n\t * } );\n\t *\n\t * // Child extension.\n\t * Template.extend( template.children[ 0 ], {\n\t * \tattributes: {\n\t * \t\tclass: 'd'\n\t * \t}\n\t * } );\n\t * ```\n\t *\n\t * the `outerHTML` of `template.render()` is:\n\t *\n\t * ```html\n\t * <p class=\"a b\" data-x=\"{ observable.foo } { observable.bar }\">\n\t * \t<span class=\"b c d\">Span</span>\n\t * </p>\n\t * ```\n\t *\n\t * @param template An existing template instance to be extended.\n\t * @param def Additional definition to be applied to a template.\n\t */\n\tpublic static extend( template: Template, def: Partial<TemplateDefinition> ): void {\n\t\tif ( template._isRendered ) {\n\t\t\t/**\n\t\t\t * Extending a template after rendering may not work as expected. To make sure\n\t\t\t * the {@link module:ui/template~Template.extend extending} works for an element,\n\t\t\t * make sure it happens before {@link module:ui/template~Template#render} is called.\n\t\t\t *\n\t\t\t * @error template-extend-render\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'template-extend-render',\n\t\t\t\t[ this, template ]\n\t\t\t);\n\t\t}\n\n\t\textendTemplate( template, normalize( clone( def ) ) );\n\t}\n\n\t/**\n\t * Renders a DOM Node (either an HTML element or text) out of the template.\n\t *\n\t * @param data Rendering data.\n\t */\n\tprivate _renderNode( data: RenderData ) {\n\t\tlet isInvalid;\n\n\t\tif ( data.node ) {\n\t\t\t// When applying, a definition cannot have \"tag\" and \"text\" at the same time.\n\t\t\tisInvalid = this.tag && this.text;\n\t\t} else {\n\t\t\t// When rendering, a definition must have either \"tag\" or \"text\": XOR( this.tag, this.text ).\n\t\t\tisInvalid = this.tag ? this.text : !this.text;\n\t\t}\n\n\t\tif ( isInvalid ) {\n\t\t\t/**\n\t\t\t * Node definition cannot have the \"tag\" and \"text\" properties at the same time.\n\t\t\t * Node definition must have either \"tag\" or \"text\" when rendering a new Node.\n\t\t\t *\n\t\t\t * @error ui-template-wrong-syntax\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-template-wrong-syntax',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tif ( this.text ) {\n\t\t\treturn this._renderText( data );\n\t\t} else {\n\t\t\treturn this._renderElement( data );\n\t\t}\n\t}\n\n\t/**\n\t * Renders an HTML element out of the template.\n\t *\n\t * @param data Rendering data.\n\t */\n\tprivate _renderElement( data: RenderData ) {\n\t\tlet node = data.node;\n\n\t\tif ( !node ) {\n\t\t\tnode = data.node = document.createElementNS( this.ns || xhtmlNs, this.tag! ) as any;\n\t\t}\n\n\t\tthis._renderAttributes( data );\n\t\tthis._renderElementChildren( data );\n\t\tthis._setUpListeners( data );\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Renders a text node out of {@link module:ui/template~Template#text}.\n\t *\n\t * @param data Rendering data.\n\t */\n\tprivate _renderText( data: RenderData ) {\n\t\tlet node = data.node;\n\n\t\t// Save the original textContent to revert it in #revert().\n\t\tif ( node ) {\n\t\t\tdata.revertData!.text = node.textContent;\n\t\t} else {\n\t\t\tnode = data.node = document.createTextNode( '' );\n\t\t}\n\n\t\t// Check if this Text Node is bound to Observable. Cases:\n\t\t//\n\t\t//\t\ttext: [ Template.bind( ... ).to( ... ) ]\n\t\t//\n\t\t//\t\ttext: [\n\t\t//\t\t\t'foo',\n\t\t//\t\t\tTemplate.bind( ... ).to( ... ),\n\t\t//\t\t\t...\n\t\t//\t\t]\n\t\t//\n\t\tif ( hasTemplateBinding( this.text ) ) {\n\t\t\tthis._bindToObservable( {\n\t\t\t\tschema: this.text!,\n\t\t\t\tupdater: getTextUpdater( node ),\n\t\t\t\tdata\n\t\t\t} );\n\t\t}\n\t\t// Simply set text. Cases:\n\t\t//\n\t\t//\t\ttext: [ 'all', 'are', 'static' ]\n\t\t//\n\t\t//\t\ttext: [ 'foo' ]\n\t\t//\n\t\telse {\n\t\t\tnode.textContent = this.text!.join( '' );\n\t\t}\n\n\t\treturn node;\n\t}\n\n\t/**\n\t * Renders HTML element attributes out of {@link module:ui/template~Template#attributes}.\n\t *\n\t * @param data Rendering data.\n\t */\n\tprivate _renderAttributes( data: RenderData ) {\n\t\tif ( !this.attributes ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst node = data.node as HTMLElement;\n\t\tconst revertData = data.revertData;\n\n\t\tfor ( const attrName in this.attributes ) {\n\t\t\t// Current attribute value in DOM.\n\t\t\tconst domAttrValue = node.getAttribute( attrName );\n\n\t\t\t// The value to be set.\n\t\t\tconst attrValue = this.attributes[ attrName ];\n\n\t\t\t// Save revert data.\n\t\t\tif ( revertData ) {\n\t\t\t\trevertData.attributes[ attrName ] = domAttrValue;\n\t\t\t}\n\n\t\t\t// Detect custom namespace:\n\t\t\t//\n\t\t\t//\t\tclass: {\n\t\t\t//\t\t\tns: 'abc',\n\t\t\t//\t\t\tvalue: Template.bind( ... ).to( ... )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\tconst attrNs = isNamespaced( attrValue ) ? attrValue[ 0 ].ns : null;\n\n\t\t\t// Activate binding if one is found. Cases:\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\tTemplate.bind( ... ).to( ... )\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\t'bar',\n\t\t\t//\t\t\tTemplate.bind( ... ).to( ... ),\n\t\t\t//\t\t\t'baz'\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\t//\t\tclass: {\n\t\t\t//\t\t\tns: 'abc',\n\t\t\t//\t\t\tvalue: Template.bind( ... ).to( ... )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\tif ( hasTemplateBinding( attrValue ) ) {\n\t\t\t\t// Normalize attributes with additional data like namespace:\n\t\t\t\t//\n\t\t\t\t//\t\tclass: {\n\t\t\t\t//\t\t\tns: 'abc',\n\t\t\t\t//\t\t\tvalue: [ ... ]\n\t\t\t\t//\t\t}\n\t\t\t\t//\n\t\t\t\tconst valueToBind = isNamespaced( attrValue ) ? attrValue[ 0 ].value : attrValue;\n\n\t\t\t\t// Extend the original value of attributes like \"style\" and \"class\",\n\t\t\t\t// don't override them.\n\t\t\t\tif ( revertData && shouldExtend( attrName ) ) {\n\t\t\t\t\tvalueToBind.unshift( domAttrValue );\n\t\t\t\t}\n\n\t\t\t\tthis._bindToObservable( {\n\t\t\t\t\tschema: valueToBind,\n\t\t\t\t\tupdater: getAttributeUpdater( node, attrName, attrNs ),\n\t\t\t\t\tdata\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Style attribute could be an Object so it needs to be parsed in a specific way.\n\t\t\t//\n\t\t\t//\t\tstyle: {\n\t\t\t//\t\t\twidth: '100px',\n\t\t\t//\t\t\theight: Template.bind( ... ).to( ... )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\telse if ( attrName == 'style' && typeof attrValue[ 0 ] !== 'string' ) {\n\t\t\t\tthis._renderStyleAttribute( attrValue[ 0 ] as any, data );\n\t\t\t}\n\n\t\t\t// Otherwise simply set the static attribute:\n\t\t\t//\n\t\t\t//\t\tclass: [ 'foo' ]\n\t\t\t//\n\t\t\t//\t\tclass: [ 'all', 'are', 'static' ]\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\t{\n\t\t\t//\t\t\t\tns: 'abc',\n\t\t\t//\t\t\t\tvalue: [ 'foo' ]\n\t\t\t//\t\t\t}\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\telse {\n\t\t\t\t// Extend the original value of attributes like \"style\" and \"class\",\n\t\t\t\t// don't override them.\n\t\t\t\tif ( revertData && domAttrValue && shouldExtend( attrName ) ) {\n\t\t\t\t\tattrValue.unshift( domAttrValue as any );\n\t\t\t\t}\n\n\t\t\t\tconst value: any = attrValue\n\t\t\t\t\t// Retrieve \"values\" from:\n\t\t\t\t\t//\n\t\t\t\t\t//\t\tclass: [\n\t\t\t\t\t//\t\t\t{\n\t\t\t\t\t//\t\t\t\tns: 'abc',\n\t\t\t\t\t//\t\t\t\tvalue: [ ... ]\n\t\t\t\t\t//\t\t\t}\n\t\t\t\t\t//\t\t]\n\t\t\t\t\t//\n\t\t\t\t\t.map( ( val: any ) => val ? ( val.value || val ) : val )\n\t\t\t\t\t// Flatten the array.\n\t\t\t\t\t.reduce( ( prev, next ) => prev.concat( next ), [] )\n\t\t\t\t\t// Convert into string.\n\t\t\t\t\t.reduce( arrayValueReducer, '' );\n\n\t\t\t\tif ( !isFalsy( value ) ) {\n\t\t\t\t\tnode.setAttributeNS( attrNs, attrName, value );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Renders the `style` attribute of an HTML element based on\n\t * {@link module:ui/template~Template#attributes}.\n\t *\n\t * A style attribute is an object with static values:\n\t *\n\t * ```ts\n\t * attributes: {\n\t * \tstyle: {\n\t * \t\tcolor: 'red'\n\t * \t}\n\t * }\n\t * ```\n\t *\n\t * or values bound to {@link module:ui/model~Model} properties:\n\t *\n\t * ```ts\n\t * attributes: {\n\t * \tstyle: {\n\t * \t\tcolor: bind.to( ... )\n\t * \t}\n\t * }\n\t * ```\n\t *\n\t * Note: The `style` attribute is rendered without setting the namespace. It does not seem to be\n\t * needed.\n\t *\n\t * @param styles Styles located in `attributes.style` of {@link module:ui/template~TemplateDefinition}.\n\t * @param data Rendering data.\n\t */\n\tprivate _renderStyleAttribute( styles: Record<string, TemplateSimpleValue | TemplateBinding>, data: RenderData ) {\n\t\tconst node = data.node;\n\n\t\tfor ( const styleName in styles ) {\n\t\t\tconst styleValue = styles[ styleName ];\n\n\t\t\t// Cases:\n\t\t\t//\n\t\t\t//\t\tstyle: {\n\t\t\t//\t\t\tcolor: bind.to( 'attribute' )\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\tif ( hasTemplateBinding( styleValue ) ) {\n\t\t\t\tthis._bindToObservable( {\n\t\t\t\t\tschema: [ styleValue ],\n\t\t\t\t\tupdater: getStyleUpdater( node, styleName ),\n\t\t\t\t\tdata\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Cases:\n\t\t\t//\n\t\t\t//\t\tstyle: {\n\t\t\t//\t\t\tcolor: 'red'\n\t\t\t//\t\t}\n\t\t\t//\n\t\t\telse {\n\t\t\t\t( node as any ).style[ styleName ] = styleValue;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Recursively renders HTML element's children from {@link module:ui/template~Template#children}.\n\t *\n\t * @param data Rendering data.\n\t */\n\tprivate _renderElementChildren( data: RenderData ) {\n\t\tconst node = data.node as HTMLElement;\n\t\tconst container = data.intoFragment ? document.createDocumentFragment() : node;\n\t\tconst isApplying = data.isApplying;\n\t\tlet childIndex = 0;\n\n\t\tfor ( const child of this.children! ) {\n\t\t\tif ( isViewCollection( child ) ) {\n\t\t\t\tif ( !isApplying ) {\n\t\t\t\t\tchild.setParent( node );\n\n\t\t\t\t\t// Note: ViewCollection renders its children.\n\t\t\t\t\tfor ( const view of child ) {\n\t\t\t\t\t\tcontainer.appendChild( view.element! );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else if ( isView( child ) ) {\n\t\t\t\tif ( !isApplying ) {\n\t\t\t\t\tif ( !child.isRendered ) {\n\t\t\t\t\t\tchild.render();\n\t\t\t\t\t}\n\n\t\t\t\t\tcontainer.appendChild( child.element! );\n\t\t\t\t}\n\t\t\t} else if ( isNode( child ) ) {\n\t\t\t\tcontainer.appendChild( child );\n\t\t\t} else {\n\t\t\t\tif ( isApplying ) {\n\t\t\t\t\tconst revertData = data.revertData!;\n\t\t\t\t\tconst childRevertData = getEmptyRevertData();\n\n\t\t\t\t\trevertData.children.push( childRevertData );\n\n\t\t\t\t\tchild._renderNode( {\n\t\t\t\t\t\tintoFragment: false,\n\t\t\t\t\t\tnode: container.childNodes[ childIndex++ ] as any,\n\t\t\t\t\t\tisApplying: true,\n\t\t\t\t\t\trevertData: childRevertData\n\t\t\t\t\t} );\n\t\t\t\t} else {\n\t\t\t\t\tcontainer.appendChild( child.render() );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( data.intoFragment ) {\n\t\t\tnode.appendChild( container );\n\t\t}\n\t}\n\n\t/**\n\t * Activates `on` event listeners from the {@link module:ui/template~TemplateDefinition}\n\t * on an HTML element.\n\t *\n\t * @param data Rendering data.\n\t */\n\tprivate _setUpListeners( data: RenderData ) {\n\t\tif ( !this.eventListeners ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const key in this.eventListeners ) {\n\t\t\tconst revertBindings = this.eventListeners[ key ].map( schemaItem => {\n\t\t\t\tconst [ domEvtName, domSelector ] = key.split( '@' );\n\n\t\t\t\treturn schemaItem.activateDomEventListener( domEvtName, domSelector, data );\n\t\t\t} );\n\n\t\t\tif ( data.revertData ) {\n\t\t\t\tdata.revertData.bindings.push( revertBindings );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * For a given {@link module:ui/template~TemplateValueSchema} containing {@link module:ui/template~TemplateBinding}\n\t * activates the binding and sets its initial value.\n\t *\n\t * Note: {@link module:ui/template~TemplateValueSchema} can be for HTML element attributes or\n\t * text node `textContent`.\n\t *\n\t * @param options Binding options.\n\t * @param options.updater A function which updates the DOM (like attribute or text).\n\t * @param options.data Rendering data.\n\t */\n\tprivate _bindToObservable( { schema, updater, data }: {\n\t\tschema: Array<TemplateSimpleValue | TemplateBinding>;\n\t\tupdater: Updater;\n\t\tdata: RenderData;\n\t} ) {\n\t\tconst revertData = data.revertData;\n\n\t\t// Set initial values.\n\t\tsyncValueSchemaValue( schema, updater, data );\n\n\t\tconst revertBindings = schema\n\t\t\t// Filter \"falsy\" (false, undefined, null, '') value schema components out.\n\t\t\t.filter( item => !isFalsy( item ) )\n\t\t\t// Filter inactive bindings from schema, like static strings ('foo'), numbers (42), etc.\n\t\t\t.filter( ( item: any ): item is TemplateBinding => item.observable )\n\t\t\t// Once only the actual binding are left, let the emitter listen to observable change:attribute event.\n\t\t\t// TODO: Reduce the number of listeners attached as many bindings may listen\n\t\t\t// to the same observable attribute.\n\t\t\t.map( templateBinding => templateBinding.activateAttributeListener( schema, updater, data ) );\n\n\t\tif ( revertData ) {\n\t\t\trevertData.bindings.push( revertBindings );\n\t\t}\n\t}\n\n\t/**\n\t * Reverts {@link module:ui/template~RenderData#revertData template data} from a node to\n\t * return it to the original state.\n\t *\n\t * @param node A node to be reverted.\n\t * @param revertData An object that stores information about what changes have been made by\n\t * {@link #apply} to the node. See {@link module:ui/template~RenderData#revertData} for more information.\n\t */\n\tprivate _revertTemplateFromNode( node: HTMLElement | Text, revertData: RevertData ) {\n\t\tfor ( const binding of revertData.bindings ) {\n\t\t\t// Each binding may consist of several observable+observable#attribute.\n\t\t\t// like the following has 2:\n\t\t\t//\n\t\t\t//\t\tclass: [\n\t\t\t//\t\t\t'x',\n\t\t\t//\t\t\tbind.to( 'foo' ),\n\t\t\t//\t\t\t'y',\n\t\t\t//\t\t\tbind.to( 'bar' )\n\t\t\t//\t\t]\n\t\t\t//\n\t\t\tfor ( const revertBinding of binding ) {\n\t\t\t\trevertBinding();\n\t\t\t}\n\t\t}\n\n\t\tif ( revertData.text ) {\n\t\t\tnode.textContent = revertData.text;\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst element = node as HTMLElement;\n\n\t\tfor ( const attrName in revertData.attributes ) {\n\t\t\tconst attrValue = revertData.attributes[ attrName ];\n\n\t\t\t// When the attribute has **not** been set before #apply().\n\t\t\tif ( attrValue === null ) {\n\t\t\t\telement.removeAttribute( attrName );\n\t\t\t} else {\n\t\t\t\telement.setAttribute( attrName, attrValue );\n\t\t\t}\n\t\t}\n\n\t\tfor ( let i = 0; i < revertData.children.length; ++i ) {\n\t\t\tthis._revertTemplateFromNode( element.childNodes[ i ] as any, revertData.children[ i ] );\n\t\t}\n\t}\n}\n\ntype AttributeValues = Array<TemplateSimpleValue | TemplateBinding> |\n\t[ NamespacedValue<Array<TemplateSimpleValue | TemplateBinding>> ];\n\n/**\n * Describes a binding created by the {@link module:ui/template~Template.bind} interface.\n *\n * @internal\n */\nexport abstract class TemplateBinding {\n\t/**\n\t * The name of the {@link module:ui/template~TemplateBinding#observable observed attribute}.\n\t */\n\tpublic readonly attribute: string;\n\n\t/**\n\t * An observable instance of the binding. It either:\n\t *\n\t * * provides the attribute with the value,\n\t * * or passes the event when a corresponding DOM event is fired.\n\t */\n\tpublic readonly observable: Observable;\n\n\t/**\n\t * An {@link module:utils/emittermixin~Emitter} used by the binding to:\n\t *\n\t * * listen to the attribute change in the {@link module:ui/template~TemplateBinding#observable},\n\t * * or listen to the event in the DOM.\n\t */\n\tpublic readonly emitter: Emitter;\n\n\t/**\n\t * A custom function to process the value of the {@link module:ui/template~TemplateBinding#attribute}.\n\t */\n\tpublic readonly callback?: ( value: any, node: Node ) => TemplateSimpleValue;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/template~TemplateBinding} class.\n\t *\n\t * @param def The definition of the binding.\n\t */\n\tconstructor( def: {\n\t\tattribute: string;\n\t\tobservable: Observable;\n\t\temitter: Emitter;\n\t\tcallback?: ( value: any, node: Node ) => TemplateSimpleValue;\n\t} ) {\n\t\tthis.attribute = def.attribute;\n\t\tthis.observable = def.observable;\n\t\tthis.emitter = def.emitter;\n\t\tthis.callback = def.callback;\n\t}\n\n\t/**\n\t * Returns the value of the binding. It is the value of the {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable}. The value may be processed by the\n\t * {@link module:ui/template~TemplateBinding#callback}, if such has been passed to the binding.\n\t *\n\t * @param node A native DOM node, passed to the custom {@link module:ui/template~TemplateBinding#callback}.\n\t * @returns The value of {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable}.\n\t */\n\tpublic getValue( node: Node ): TemplateSimpleValue {\n\t\tconst value = ( this.observable as any )[ this.attribute ];\n\n\t\treturn this.callback ? this.callback( value, node ) : value;\n\t}\n\n\t/**\n\t * Activates the listener which waits for changes of the {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable}, then updates the DOM with the aggregated\n\t * value of {@link module:ui/template~TemplateValueSchema}.\n\t *\n\t * @param schema A full schema to generate an attribute or text in the DOM.\n\t * @param updater A DOM updater function used to update the native DOM attribute or text.\n\t * @param data Rendering data.\n\t * @returns A function to sever the listener binding.\n\t */\n\tpublic activateAttributeListener(\n\t\tschema: Array<TemplateSimpleValue | TemplateBinding>,\n\t\tupdater: Updater,\n\t\tdata: RenderData\n\t): () => void {\n\t\tconst callback = () => syncValueSchemaValue( schema, updater, data );\n\n\t\tthis.emitter.listenTo<ObservableChangeEvent>( this.observable, `change:${ this.attribute }`, callback );\n\n\t\t// Allows revert of the listener.\n\t\treturn () => {\n\t\t\tthis.emitter.stopListening( this.observable, `change:${ this.attribute }`, callback );\n\t\t};\n\t}\n}\n\n/**\n * Describes either:\n *\n * * a binding to an {@link module:utils/observablemixin~Observable},\n * * or a native DOM event binding.\n *\n * It is created by the {@link module:ui/template~BindChain#to} method.\n *\n * @internal\n */\nexport class TemplateToBinding extends TemplateBinding {\n\tpublic readonly eventNameOrFunction: string | ( ( domEvent: Event ) => void );\n\n\tconstructor( def: ConstructorParameters<typeof TemplateBinding>[ 0 ] & {\n\t\teventNameOrFunction: string | ( ( domEvent: Event ) => void );\n\t} ) {\n\t\tsuper( def );\n\n\t\tthis.eventNameOrFunction = def.eventNameOrFunction;\n\t}\n\n\t/**\n\t * Activates the listener for the native DOM event, which when fired, is propagated by\n\t * the {@link module:ui/template~TemplateBinding#emitter}.\n\t *\n\t * @param domEvtName The name of the native DOM event.\n\t * @param domSelector The selector in the DOM to filter delegated events.\n\t * @param data Rendering data.\n\t * @returns A function to sever the listener binding.\n\t */\n\tpublic activateDomEventListener(\n\t\tdomEvtName: string,\n\t\tdomSelector: string,\n\t\tdata: { node: any }\n\t): () => void {\n\t\tconst callback = ( evt: unknown, domEvt: Event ) => {\n\t\t\tif ( !domSelector || ( domEvt.target as Element ).matches( domSelector ) ) {\n\t\t\t\tif ( typeof this.eventNameOrFunction == 'function' ) {\n\t\t\t\t\tthis.eventNameOrFunction( domEvt );\n\t\t\t\t} else {\n\t\t\t\t\tthis.observable.fire( this.eventNameOrFunction, domEvt );\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\tthis.emitter.listenTo( data.node, domEvtName, callback );\n\n\t\t// Allows revert of the listener.\n\t\treturn () => {\n\t\t\tthis.emitter.stopListening( data.node, domEvtName, callback );\n\t\t};\n\t}\n}\n\n/**\n * Describes a binding to {@link module:utils/observablemixin~Observable} created by the {@link module:ui/template~BindChain#if}\n * method.\n *\n * @internal\n */\nexport class TemplateIfBinding extends TemplateBinding {\n\t/**\n\t * The value of the DOM attribute or text to be set if the {@link module:ui/template~TemplateBinding#attribute} in\n\t * {@link module:ui/template~TemplateBinding#observable} is `true`.\n\t */\n\tpublic readonly valueIfTrue?: string;\n\n\tconstructor( def: ConstructorParameters<typeof TemplateBinding>[ 0 ] & {\n\t\tvalueIfTrue?: string;\n\t} ) {\n\t\tsuper( def );\n\n\t\tthis.valueIfTrue = def.valueIfTrue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override getValue( node: Node ): TemplateSimpleValue {\n\t\tconst value = super.getValue( node );\n\n\t\treturn isFalsy( value ) ? false : ( this.valueIfTrue || true ) as any;\n\t}\n}\n\n/**\n * Checks whether given {@link module:ui/template~TemplateValueSchema} contains a\n * {@link module:ui/template~TemplateBinding}.\n */\nfunction hasTemplateBinding( schema: any ) {\n\tif ( !schema ) {\n\t\treturn false;\n\t}\n\n\t// Normalize attributes with additional data like namespace:\n\t//\n\t//\t\tclass: {\n\t//\t\t\tns: 'abc',\n\t//\t\t\tvalue: [ ... ]\n\t//\t\t}\n\t//\n\tif ( schema.value ) {\n\t\tschema = schema.value;\n\t}\n\n\tif ( Array.isArray( schema ) ) {\n\t\treturn schema.some( hasTemplateBinding );\n\t} else if ( schema instanceof TemplateBinding ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Assembles the value using {@link module:ui/template~TemplateValueSchema} and stores it in a form of\n * an Array. Each entry of the Array corresponds to one of {@link module:ui/template~TemplateValueSchema}\n * items.\n *\n * @param node DOM Node updated when {@link module:utils/observablemixin~Observable} changes.\n */\nfunction getValueSchemaValue( schema: Array<TemplateSimpleValue | TemplateBinding>, node: Node ) {\n\treturn schema.map( schemaItem => {\n\t\t// Process {@link module:ui/template~TemplateBinding} bindings.\n\t\tif ( schemaItem instanceof TemplateBinding ) {\n\t\t\treturn schemaItem.getValue( node );\n\t\t}\n\n\t\t// All static values like strings, numbers, and \"falsy\" values (false, null, undefined, '', etc.) just pass.\n\t\treturn schemaItem;\n\t} );\n}\n\n/**\n * A function executed each time the bound Observable attribute changes, which updates the DOM with a value\n * constructed from {@link module:ui/template~TemplateValueSchema}.\n *\n * @param updater A function which updates the DOM (like attribute or text).\n * @param node DOM Node updated when {@link module:utils/observablemixin~Observable} changes.\n */\nfunction syncValueSchemaValue(\n\tschema: Array<TemplateSimpleValue | TemplateBinding>,\n\tupdater: Updater,\n\t{ node }: { node: Node }\n) {\n\tconst values = getValueSchemaValue( schema, node );\n\tlet value: TemplateSimpleValue;\n\n\t// Check if schema is a single Template.bind.if, like:\n\t//\n\t//\t\tclass: Template.bind.if( 'foo' )\n\t//\n\tif ( schema.length == 1 && schema[ 0 ] instanceof TemplateIfBinding ) {\n\t\tvalue = values[ 0 ];\n\t} else {\n\t\tvalue = values.reduce( arrayValueReducer, '' );\n\t}\n\n\tif ( isFalsy( value ) ) {\n\t\tupdater.remove();\n\t} else {\n\t\tupdater.set( value );\n\t}\n}\n\ninterface Updater {\n\tset( value: any ): void;\n\tremove(): void;\n}\n\n/**\n * Returns an object consisting of `set` and `remove` functions, which\n * can be used in the context of DOM Node to set or reset `textContent`.\n * @see module:ui/view~View#_bindToObservable\n *\n * @param node DOM Node to be modified.\n */\nfunction getTextUpdater( node: Node ): Updater {\n\treturn {\n\t\tset( value ) {\n\t\t\tnode.textContent = value;\n\t\t},\n\n\t\tremove() {\n\t\t\tnode.textContent = '';\n\t\t}\n\t};\n}\n\n/**\n * Returns an object consisting of `set` and `remove` functions, which\n * can be used in the context of DOM Node to set or reset an attribute.\n * @see module:ui/view~View#_bindToObservable\n *\n * @param el DOM Node to be modified.\n * @param attrName Name of the attribute to be modified.\n * @param ns Namespace to use.\n */\nfunction getAttributeUpdater( el: Element, attrName: string, ns: string | null ): Updater {\n\treturn {\n\t\tset( value ) {\n\t\t\tel.setAttributeNS( ns, attrName, value );\n\t\t},\n\n\t\tremove() {\n\t\t\tel.removeAttributeNS( ns, attrName );\n\t\t}\n\t};\n}\n\n/**\n * Returns an object consisting of `set` and `remove` functions, which\n * can be used in the context of CSSStyleDeclaration to set or remove a style.\n * @see module:ui/view~View#_bindToObservable\n *\n * @param el DOM Node to be modified.\n * @param styleName Name of the style to be modified.\n */\nfunction getStyleUpdater( el: any, styleName: string ): Updater {\n\treturn {\n\t\tset( value ) {\n\t\t\tel.style[ styleName ] = value;\n\t\t},\n\n\t\tremove() {\n\t\t\tel.style[ styleName ] = null;\n\t\t}\n\t};\n}\n\n/**\n * Clones definition of the template.\n */\nfunction clone( def: unknown ) {\n\tconst clone = cloneDeepWith( def, value => {\n\t\t// Don't clone the `Template.bind`* bindings because of the references to Observable\n\t\t// and DomEmitterMixin instances inside, which would also be traversed and cloned by greedy\n\t\t// cloneDeepWith algorithm. There's no point in cloning Observable/DomEmitterMixins\n\t\t// along with the definition.\n\t\t//\n\t\t// Don't clone Template instances if provided as a child. They're simply #render()ed\n\t\t// and nothing should interfere.\n\t\t//\n\t\t// Also don't clone View instances if provided as a child of the Template. The template\n\t\t// instance will be extracted from the View during the normalization and there's no need\n\t\t// to clone it.\n\t\tif ( value && ( value instanceof TemplateBinding || isTemplate( value ) || isView( value ) || isViewCollection( value ) ) ) {\n\t\t\treturn value;\n\t\t}\n\t} );\n\n\treturn clone;\n}\n\n/**\n * Normalizes given {@link module:ui/template~TemplateDefinition}.\n *\n * See:\n *  * {@link normalizeAttributes}\n *  * {@link normalizeListeners}\n *  * {@link normalizePlainTextDefinition}\n *  * {@link normalizeTextDefinition}\n *\n * @param def A template definition.\n * @returns Normalized definition.\n */\nfunction normalize( def: any ) {\n\tif ( typeof def == 'string' ) {\n\t\tdef = normalizePlainTextDefinition( def );\n\t} else if ( def.text ) {\n\t\tnormalizeTextDefinition( def );\n\t}\n\n\tif ( def.on ) {\n\t\tdef.eventListeners = normalizeListeners( def.on );\n\n\t\t// Template mixes EmitterMixin, so delete #on to avoid collision.\n\t\tdelete def.on;\n\t}\n\n\tif ( !def.text ) {\n\t\tif ( def.attributes ) {\n\t\t\tnormalizeAttributes( def.attributes );\n\t\t}\n\n\t\tconst children = [];\n\n\t\tif ( def.children ) {\n\t\t\tif ( isViewCollection( def.children ) ) {\n\t\t\t\tchildren.push( def.children );\n\t\t\t} else {\n\t\t\t\tfor ( const child of def.children ) {\n\t\t\t\t\tif ( isTemplate( child ) || isView( child ) || isNode( child ) ) {\n\t\t\t\t\t\tchildren.push( child );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tchildren.push( new Template( child ) );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tdef.children = children;\n\t}\n\n\treturn def;\n}\n\n/**\n * Normalizes \"attributes\" section of {@link module:ui/template~TemplateDefinition}.\n *\n * ```\n * attributes: {\n * \ta: 'bar',\n * \tb: {@link module:ui/template~TemplateBinding},\n * \tc: {\n * \t\tvalue: 'bar'\n * \t}\n * }\n * ```\n *\n * becomes\n *\n * ```\n * attributes: {\n * \ta: [ 'bar' ],\n * \tb: [ {@link module:ui/template~TemplateBinding} ],\n * \tc: {\n * \t\tvalue: [ 'bar' ]\n * \t}\n * }\n * ```\n */\nfunction normalizeAttributes( attributes: any ) {\n\tfor ( const a in attributes ) {\n\t\tif ( attributes[ a ].value ) {\n\t\t\tattributes[ a ].value = toArray( attributes[ a ].value );\n\t\t}\n\n\t\tarrayify( attributes, a );\n\t}\n}\n\n/**\n * Normalizes \"on\" section of {@link module:ui/template~TemplateDefinition}.\n *\n * ```\n * on: {\n * \ta: 'bar',\n * \tb: {@link module:ui/template~TemplateBinding},\n * \tc: [ {@link module:ui/template~TemplateBinding}, () => { ... } ]\n * }\n * ```\n *\n * becomes\n *\n * ```\n * on: {\n * \ta: [ 'bar' ],\n * \tb: [ {@link module:ui/template~TemplateBinding} ],\n * \tc: [ {@link module:ui/template~TemplateBinding}, () => { ... } ]\n * }\n * ```\n *\n * @returns Object containing normalized listeners.\n */\nfunction normalizeListeners( listeners: any ) {\n\tfor ( const l in listeners ) {\n\t\tarrayify( listeners, l );\n\t}\n\n\treturn listeners;\n}\n\n/**\n * Normalizes \"string\" {@link module:ui/template~TemplateDefinition}.\n *\n * ```\n * \"foo\"\n * ```\n *\n * becomes\n *\n * ```\n * { text: [ 'foo' ] },\n * ```\n *\n * @returns Normalized template definition.\n */\nfunction normalizePlainTextDefinition( def: string ) {\n\treturn {\n\t\ttext: [ def ]\n\t};\n}\n\n/**\n * Normalizes text {@link module:ui/template~TemplateDefinition}.\n *\n * ```\n * children: [\n * \t{ text: 'def' },\n * \t{ text: {@link module:ui/template~TemplateBinding} }\n * ]\n * ```\n *\n * becomes\n *\n * ```\n * children: [\n * \t{ text: [ 'def' ] },\n * \t{ text: [ {@link module:ui/template~TemplateBinding} ] }\n * ]\n * ```\n */\nfunction normalizeTextDefinition( def: any ) {\n\tdef.text = toArray( def.text );\n}\n\n/**\n * Wraps an entry in Object in an Array, if not already one.\n *\n * ```\n * {\n * \tx: 'y',\n * \ta: [ 'b' ]\n * }\n * ```\n *\n * becomes\n *\n * ```\n * {\n * \tx: [ 'y' ],\n * \ta: [ 'b' ]\n * }\n * ```\n */\nfunction arrayify( obj: any, key: string ) {\n\tobj[ key ] = toArray( obj[ key ] );\n}\n\n/**\n * A helper which concatenates the value avoiding unwanted\n * leading white spaces.\n */\nfunction arrayValueReducer( prev: TemplateSimpleValue, cur: TemplateSimpleValue ) {\n\tif ( isFalsy( cur ) ) {\n\t\treturn prev;\n\t} else if ( isFalsy( prev ) ) {\n\t\treturn cur;\n\t} else {\n\t\treturn `${ prev } ${ cur }`;\n\t}\n}\n\n/**\n * Extends one object defined in the following format:\n *\n * ```\n * {\n * \tkey1: [Array1],\n * \tkey2: [Array2],\n * \t...\n * \tkeyN: [ArrayN]\n * }\n * ```\n *\n * with another object of the same data format.\n *\n * @param obj Base object.\n * @param ext Object extending base.\n */\nfunction extendObjectValueArray( obj: any, ext: any ) {\n\tfor ( const a in ext ) {\n\t\tif ( obj[ a ] ) {\n\t\t\tobj[ a ].push( ...ext[ a ] );\n\t\t} else {\n\t\t\tobj[ a ] = ext[ a ];\n\t\t}\n\t}\n}\n\n/**\n * A helper for {@link module:ui/template~Template#extend}. Recursively extends {@link module:ui/template~Template} instance\n * with content from {@link module:ui/template~TemplateDefinition}. See {@link module:ui/template~Template#extend} to learn more.\n *\n * @param def A template instance to be extended.\n * @param def A definition which is to extend the template instance.\n * @param Error context.\n */\nfunction extendTemplate( template: Template, def: any ) {\n\tif ( def.attributes ) {\n\t\tif ( !template.attributes ) {\n\t\t\ttemplate.attributes = {};\n\t\t}\n\n\t\textendObjectValueArray( template.attributes, def.attributes );\n\t}\n\n\tif ( def.eventListeners ) {\n\t\tif ( !template.eventListeners ) {\n\t\t\ttemplate.eventListeners = {};\n\t\t}\n\n\t\textendObjectValueArray( template.eventListeners, def.eventListeners );\n\t}\n\n\tif ( def.text ) {\n\t\ttemplate.text!.push( ...def.text );\n\t}\n\n\tif ( def.children && def.children.length ) {\n\t\tif ( template.children!.length != def.children.length ) {\n\t\t\t/**\n\t\t\t * The number of children in extended definition does not match.\n\t\t\t *\n\t\t\t * @error ui-template-extend-children-mismatch\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'ui-template-extend-children-mismatch',\n\t\t\t\ttemplate\n\t\t\t);\n\t\t}\n\n\t\tlet childIndex = 0;\n\n\t\tfor ( const childDef of def.children ) {\n\t\t\textendTemplate( template.children![ childIndex++ ] as any, childDef );\n\t\t}\n\t}\n}\n\n/**\n * Checks if value is \"falsy\".\n * Note: 0 (Number) is not \"falsy\" in this context.\n *\n * @param value Value to be checked.\n */\nfunction isFalsy( value: unknown ): value is FalsyValue {\n\treturn !value && value !== 0;\n}\n\n/**\n * Checks if the item is an instance of {@link module:ui/view~View}\n *\n * @param value Value to be checked.\n */\nfunction isView( item: unknown ): item is View {\n\treturn item instanceof View;\n}\n\n/**\n * Checks if the item is an instance of {@link module:ui/template~Template}\n *\n * @param value Value to be checked.\n */\nfunction isTemplate( item: unknown ): item is Template {\n\treturn item instanceof Template;\n}\n\n/**\n * Checks if the item is an instance of {@link module:ui/viewcollection~ViewCollection}\n *\n * @param value Value to be checked.\n */\nfunction isViewCollection( item: unknown ): item is ViewCollection {\n\treturn item instanceof ViewCollection;\n}\n\n/**\n * Checks if value array contains the one with namespace.\n */\nfunction isNamespaced(\n\tattrValue: AttributeValues\n): attrValue is [ NamespacedValue<Array<TemplateSimpleValue | TemplateBinding>> ] {\n\treturn isObject( attrValue[ 0 ] ) && ( attrValue[ 0 ] as any ).ns;\n}\n\n/**\n * Creates an empty skeleton for {@link module:ui/template~Template#revert}\n * data.\n */\nfunction getEmptyRevertData(): RevertData {\n\treturn {\n\t\tchildren: [],\n\t\tbindings: [],\n\t\tattributes: {}\n\t};\n}\n\n/**\n * Checks whether an attribute should be extended when\n * {@link module:ui/template~Template#apply} is called.\n *\n * @param attrName Attribute name to check.\n */\nfunction shouldExtend( attrName: string ) {\n\treturn attrName == 'class' || attrName == 'style';\n}\n\n/**\n * A definition of the {@link module:ui/template~Template}. It describes what kind of\n * node a template will render (HTML element or text), attributes of an element, DOM event\n * listeners and children.\n *\n * Also see:\n * * {@link module:ui/template~TemplateValueSchema} to learn about HTML element attributes,\n * * {@link module:ui/template~TemplateListenerSchema} to learn about DOM event listeners.\n *\n * A sample definition on an HTML element can look like this:\n *\n * ```ts\n * new Template( {\n * \ttag: 'p',\n * \tchildren: [\n * \t\t{\n * \t\t\ttag: 'span',\n * \t\t\tattributes: { ... },\n * \t\t\tchildren: [ ... ],\n * \t\t},\n * \t\t{\n * \t\t\ttext: 'static–text'\n * \t\t},\n * \t\t'also-static–text',\n * \t],\n * \tattributes: {\n * \t\tclass: {@link module:ui/template~TemplateValueSchema},\n * \t\tid: {@link module:ui/template~TemplateValueSchema},\n * \t\tstyle: {@link module:ui/template~TemplateValueSchema}\n *\n * \t\t// ...\n * \t},\n * \ton: {\n * \t\t'click': {@link module:ui/template~TemplateListenerSchema}\n *\n * \t\t// Document.querySelector format is also accepted.\n * \t\t'keyup@a.some-class': {@link module:ui/template~TemplateListenerSchema}\n *\n * \t\t// ...\n * \t}\n * } );\n * ```\n *\n * A {@link module:ui/view~View}, another {@link module:ui/template~Template} or a native DOM node\n * can also become a child of a template. When a view is passed, its {@link module:ui/view~View#element} is used:\n *\n * ```ts\n * const view = new SomeView();\n * const childTemplate = new Template( { ... } );\n * const childNode = document.createElement( 'b' );\n *\n * new Template( {\n * \ttag: 'p',\n *\n * \tchildren: [\n * \t\t// view#element will be added as a child of this <p>.\n * \t\tview,\n *\n * \t\t// The output of childTemplate.render() will be added here.\n * \t\tchildTemplate,\n *\n * \t\t// Native DOM nodes are included directly in the rendered output.\n * \t\tchildNode\n * \t]\n * } );\n * ```\n *\n * An entire {@link module:ui/viewcollection~ViewCollection} can be used as a child in the definition:\n *\n * ```ts\n * const collection = new ViewCollection();\n * collection.add( someView );\n *\n * new Template( {\n * \ttag: 'p',\n *\n * \tchildren: collection\n * } );\n * ```\n */\nexport type TemplateDefinition = string |\n\tTemplate |\n\tTemplateElementDefinition |\n\tTemplateTextDefinition;\n\nexport type TemplateElementDefinition = {\n\n\t/**\n\t * See the template {@link module:ui/template~Template#tag} property.\n\t */\n\ttag: string;\n\n\t/**\n\t * See the template {@link module:ui/template~Template#attributes} property.\n\t */\n\tattributes?: Record<string, TemplateValueSchema>;\n\n\t/**\n\t * See the template {@link module:ui/template~Template#children} property.\n\t */\n\tchildren?: Iterable<View | Node | Template | TemplateDefinition>;\n\n\t/**\n\t * See the template {@link module:ui/template~Template#eventListeners} property.\n\t */\n\ton?: Record<string, TemplateListenerSchema>;\n};\n\nexport type TemplateTextDefinition = {\n\n\t/**\n\t * See the template {@link module:ui/template~Template#text} property.\n\t */\n\ttext: ArrayOrItem<TemplateSimpleValueSchema>;\n};\n\nexport type FalsyValue = false | null | undefined | '';\n\nexport type NamespacedValue<T> = { ns: string; value: T };\n\nexport type TemplateSimpleValue = string | boolean | number | null | undefined;\n\nexport type TemplateSimpleValueSchema = TemplateSimpleValue | AttributeBinding;\n\n/**\n * Describes a value of an HTML element attribute or `textContent`. It allows combining multiple\n * data sources like static values and {@link module:utils/observablemixin~Observable} attributes.\n *\n * Also see:\n * * {@link module:ui/template~TemplateDefinition} to learn where to use it,\n * * {@link module:ui/template~Template.bind} to learn how to configure\n * {@link module:utils/observablemixin~Observable} attribute bindings,\n * * {@link module:ui/template~Template#render} to learn how to render a template,\n * * {@link module:ui/template~BindChain#to `to()`} and {@link module:ui/template~BindChain#if `if()`}\n * methods to learn more about bindings.\n *\n * Attribute values can be described in many different ways:\n *\n * ```ts\n * // Bind helper will create bindings to attributes of the observable.\n * const bind = Template.bind( observable, emitter );\n *\n * new Template( {\n * \ttag: 'p',\n * \tattributes: {\n * \t\t// A plain string schema.\n * \t\t'class': 'static-text',\n *\n * \t\t// An object schema, binds to the \"foo\" attribute of the\n * \t\t// observable and follows its value.\n * \t\t'class': bind.to( 'foo' ),\n *\n * \t\t// An array schema, combines the above.\n * \t\t'class': [\n * \t\t\t'static-text',\n * \t\t\tbind.to( 'bar', () => { ... } ),\n *\n * \t\t\t// Bindings can also be conditional.\n * \t\t\tbind.if( 'baz', 'class-when-baz-is-true' )\n * \t\t],\n *\n * \t\t// An array schema, with a custom namespace, e.g. useful for creating SVGs.\n * \t\t'class': {\n * \t\t\tns: 'http://ns.url',\n * \t\t\tvalue: [\n * \t\t\t\tbind.if( 'baz', 'value-when-true' ),\n * \t\t\t\t'static-text'\n * \t\t\t]\n * \t\t},\n *\n * \t\t// An object schema, specific for styles.\n * \t\tstyle: {\n * \t\t\tcolor: 'red',\n * \t\t\tbackgroundColor: bind.to( 'qux', () => { ... } )\n * \t\t}\n * \t}\n * } );\n * ```\n *\n * Text nodes can also have complex values:\n *\n * ```ts\n * const bind = Template.bind( observable, emitter );\n *\n * // Will render a \"foo\" text node.\n * new Template( {\n * \ttext: 'foo'\n * } );\n *\n * // Will render a \"static text: {observable.foo}\" text node.\n * // The text of the node will be updated as the \"foo\" attribute changes.\n * new Template( {\n * \ttext: [\n * \t\t'static text: ',\n * \t\tbind.to( 'foo', () => { ... } )\n * \t]\n * } );\n * ```\n */\nexport type TemplateValueSchema = ArrayOrItem<\n\tTemplateSimpleValueSchema |\n\tNamespacedValue<TemplateSimpleValueSchema>\n> |\n\tRecord<string, TemplateSimpleValueSchema>;\n\n/**\n * Describes an event listener attached to an HTML element. Such listener can propagate DOM events\n * through an {@link module:utils/observablemixin~Observable} instance, execute custom callbacks\n * or both, if necessary.\n *\n * Also see:\n * * {@link module:ui/template~TemplateDefinition} to learn more about template definitions,\n * * {@link module:ui/template~BindChain#to `to()`} method to learn more about bindings.\n *\n * Check out different ways of attaching event listeners below:\n *\n * ```ts\n * // Bind helper will propagate events through the observable.\n * const bind = Template.bind( observable, emitter );\n *\n * new Template( {\n * \ttag: 'p',\n * \ton: {\n * \t\t// An object schema. The observable will fire the \"clicked\" event upon DOM \"click\".\n * \t\tclick: bind.to( 'clicked' )\n *\n * \t\t// An object schema. It will work for \"click\" event on \"a.foo\" children only.\n * \t\t'click@a.foo': bind.to( 'clicked' )\n *\n * \t\t// An array schema, makes the observable propagate multiple events.\n * \t\tclick: [\n * \t\t\tbind.to( 'clicked' ),\n * \t\t\tbind.to( 'executed' )\n * \t\t],\n *\n * \t\t// An array schema with a custom callback.\n * \t\t'click@a.foo': {\n * \t\t\tbind.to( 'clicked' ),\n * \t\t\tbind.to( evt => {\n * \t\t\t\tconsole.log( `${ evt.target } has been clicked!` );\n * \t\t\t} }\n * \t\t}\n * \t}\n * } );\n * ```\n */\nexport type TemplateListenerSchema = ArrayOrItem<ListenerBinding>;\n\n// `Template.bind( observable, emitter ).to( name )` is used in two different contexts:\n// - in `attribute` (or `text`) section of the `TemplateDefinition` - `name` is an observed property of the provided `observable`, or\n// - in `on` section - `name` is the event to be fired.\n//\n// In both cases, the returned type is `TemplateToBinding` which can be misleading.\n// Moreover, some forms of `to()` can be used in specific context only:\n// - `to( name, callback )` can only be used in `attribute` or `text`\n// - `to( callback )` can only be used in `on`.\n//\n// But note, that the fact it's `Template{To,If}Binding` is not relevant to the user.\n// The instances are both produced and consumed by this file only.\n// So let's invent some opaque types for outside use and only keep using `TemplateBinding` internally. They can be different for\n// `attribute` and `on` contexts.\n// To make them opaque, a non-exported symbol is used, so it's not possible to accidentally create an instance outside.\ndeclare const AttributeBindingSymbol: unique symbol;\ndeclare const ListenerBindingSymbol: unique symbol;\n\nexport interface AttributeBinding { _opaqueAttributeBinding: typeof AttributeBindingSymbol }\nexport interface ListenerBinding { _opaqueListenerBinding: typeof ListenerBindingSymbol }\n\n/**\n * The return value of {@link ~Template.bind `Template.bind()`}. It provides `to()` and `if()`\n * methods to create the {@link module:utils/observablemixin~Observable observable} attribute and event bindings.\n */\nexport interface BindChain<TObservable> {\n\n\t/**\n\t * Binds an {@link module:utils/observablemixin~Observable observable} to either:\n\t *\n\t * * an HTML element attribute or a text node `textContent`, so it remains in sync with the observable\n\t * attribute as it changes,\n\t * * or an HTML element DOM event, so the DOM events are propagated through an observable.\n\t *\n\t * Some common use cases of `to()` bindings are presented below:\n\t *\n\t * ```ts\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * new Template( {\n\t * \ttag: 'p',\n\t * \tattributes: {\n\t * \t\t// class=\"...\" attribute gets bound to `observable#a`\n\t * \t\tclass: bind.to( 'a' )\n\t * \t},\n\t * \tchildren: [\n\t * \t\t// <p>...</p> gets bound to observable#b; always `toUpperCase()`.\n\t * \t\t{\n\t * \t\t\ttext: bind.to( 'b', ( value, node ) => value.toUpperCase() )\n\t * \t\t}\n\t * \t],\n\t * \ton: {\n\t * \t\tclick: [\n\t * \t\t\t// An observable will fire \"clicked\" upon \"click\" in the DOM.\n\t * \t\t\tbind.to( 'clicked' ),\n\t *\n\t * \t\t\t// A custom callback will be executed upon \"click\" in the DOM.\n\t * \t\t\tbind.to( () => {\n\t * \t\t\t\t...\n\t * \t\t\t} )\n\t * \t\t]\n\t * \t}\n\t * } ).render();\n\t * ```\n\t *\n\t * Learn more about using `to()` in the {@link module:ui/template~TemplateValueSchema} and\n\t * {@link module:ui/template~TemplateListenerSchema}.\n\t *\n\t * @label ATTRIBUTE\n\t * @param attribute An attribute name of {@link module:utils/observablemixin~Observable}.\n\t */\n\tto<TAttribute extends keyof TObservable & string>(\n\t\tattribute: TAttribute\n\t): AttributeBinding & ListenerBinding;\n\n\t/**\n\t * Binds an {@link module:utils/observablemixin~Observable observable} to either:\n\t *\n\t * * an HTML element attribute or a text node `textContent`, so it remains in sync with the observable\n\t * attribute as it changes,\n\t * * or an HTML element DOM event, so the DOM events are propagated through an observable.\n\t *\n\t * Some common use cases of `to()` bindings are presented below:\n\t *\n\t * ```ts\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * new Template( {\n\t * \ttag: 'p',\n\t * \tattributes: {\n\t * \t\t// class=\"...\" attribute gets bound to `observable#a`\n\t * \t\tclass: bind.to( 'a' )\n\t * \t},\n\t * \tchildren: [\n\t * \t\t// <p>...</p> gets bound to observable#b; always `toUpperCase()`.\n\t * \t\t{\n\t * \t\t\ttext: bind.to( 'b', ( value, node ) => value.toUpperCase() )\n\t * \t\t}\n\t * \t],\n\t * \ton: {\n\t * \t\tclick: [\n\t * \t\t\t// An observable will fire \"clicked\" upon \"click\" in the DOM.\n\t * \t\t\tbind.to( 'clicked' ),\n\t *\n\t * \t\t\t// A custom callback will be executed upon \"click\" in the DOM.\n\t * \t\t\tbind.to( () => {\n\t * \t\t\t\t...\n\t * \t\t\t} )\n\t * \t\t]\n\t * \t}\n\t * } ).render();\n\t * ```\n\t *\n\t * Learn more about using `to()` in the {@link module:ui/template~TemplateValueSchema} and\n\t * {@link module:ui/template~TemplateListenerSchema}.\n\t *\n\t * @label ATTRIBUTE_CALLBACK\n\t * @param attribute An attribute name of {@link module:utils/observablemixin~Observable}.\n\t * @param callback Allows for processing of the value. Accepts `Node` and `value` as arguments.\n\t */\n\tto<TAttribute extends keyof TObservable & string>(\n\t\tattribute: TAttribute,\n\t\tcallback: ( value: TObservable[ TAttribute ], node: Node ) => ( TemplateSimpleValue )\n\t): AttributeBinding;\n\n\t/**\n\t * Binds an {@link module:utils/observablemixin~Observable observable} to either:\n\t *\n\t * * an HTML element attribute or a text node `textContent`, so it remains in sync with the observable\n\t * attribute as it changes,\n\t * * or an HTML element DOM event, so the DOM events are propagated through an observable.\n\t *\n\t * Some common use cases of `to()` bindings are presented below:\n\t *\n\t * ```ts\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * new Template( {\n\t * \ttag: 'p',\n\t * \tattributes: {\n\t * \t\t// class=\"...\" attribute gets bound to `observable#a`\n\t * \t\tclass: bind.to( 'a' )\n\t * \t},\n\t * \tchildren: [\n\t * \t\t// <p>...</p> gets bound to observable#b; always `toUpperCase()`.\n\t * \t\t{\n\t * \t\t\ttext: bind.to( 'b', ( value, node ) => value.toUpperCase() )\n\t * \t\t}\n\t * \t],\n\t * \ton: {\n\t * \t\tclick: [\n\t * \t\t\t// An observable will fire \"clicked\" upon \"click\" in the DOM.\n\t * \t\t\tbind.to( 'clicked' ),\n\t *\n\t * \t\t\t// A custom callback will be executed upon \"click\" in the DOM.\n\t * \t\t\tbind.to( () => {\n\t * \t\t\t\t...\n\t * \t\t\t} )\n\t * \t\t]\n\t * \t}\n\t * } ).render();\n\t * ```\n\t *\n\t * Learn more about using `to()` in the {@link module:ui/template~TemplateValueSchema} and\n\t * {@link module:ui/template~TemplateListenerSchema}.\n\t *\n\t * @label EVENT\n\t * @param eventNameOrCallback A DOM event name or an event callback.\n\t */\n\tto( eventNameOrCallback: string | ( ( domEvent: Event ) => void ) ): ListenerBinding;\n\n\t/**\n\t * Binds an {@link module:utils/observablemixin~Observable observable} to an HTML element attribute or a text\n\t * node `textContent` so it remains in sync with the observable attribute as it changes.\n\t *\n\t * Unlike {@link module:ui/template~BindChain#to}, it controls the presence of the attribute or `textContent`\n\t * depending on the \"falseness\" of an {@link module:utils/observablemixin~Observable} attribute.\n\t *\n\t * ```ts\n\t * const bind = Template.bind( observable, emitter );\n\t *\n\t * new Template( {\n\t * \ttag: 'input',\n\t * \tattributes: {\n\t * \t\t// <input checked> when `observable#a` is not undefined/null/false/''\n\t * \t\t// <input> when `observable#a` is undefined/null/false\n\t * \t\tchecked: bind.if( 'a' )\n\t * \t},\n\t * \tchildren: [\n\t * \t\t{\n\t * \t\t\t// <input>\"b-is-not-set\"</input> when `observable#b` is undefined/null/false/''\n\t * \t\t\t// <input></input> when `observable#b` is not \"falsy\"\n\t * \t\t\ttext: bind.if( 'b', 'b-is-not-set', ( value, node ) => !value )\n\t * \t\t}\n\t * \t]\n\t * } ).render();\n\t * ```\n\t *\n\t * Learn more about using `if()` in the {@link module:ui/template~TemplateValueSchema}.\n\t *\n\t * @param attribute An attribute name of {@link module:utils/observablemixin~Observable} used in the binding.\n\t * @param valueIfTrue Value set when the {@link module:utils/observablemixin~Observable} attribute is not\n\t * undefined/null/false/'' (empty string).\n\t * @param callback Allows for processing of the value. Accepts `Node` and `value` as arguments.\n\t */\n\tif<TAttribute extends keyof TObservable & string>(\n\t\tattribute: TAttribute,\n\t\tvalueIfTrue?: unknown,\n\t\tcallback?: ( value: TObservable[ TAttribute ], node: Node ) => ( boolean | FalsyValue )\n\t): AttributeBinding;\n}\n\n/**\n * The {@link module:ui/template~Template#_renderNode} configuration.\n */\nexport interface RenderData {\n\n\t/**\n\t * A node which is being rendered.\n\t */\n\tnode: HTMLElement | Text;\n\n\t/**\n\t * Tells {@link module:ui/template~Template#_renderNode} to render\n\t * children into `DocumentFragment` first and then append the fragment\n\t * to the parent element. It is a speed optimization.\n\t */\n\tintoFragment: boolean;\n\n\t/**\n\t * Indicates whether the {@link #node} has been provided by {@link module:ui/template~Template#apply}.\n\t */\n\tisApplying: boolean;\n\n\t/**\n\t * An object storing the data that helps {@link module:ui/template~Template#revert}\n\t * bringing back an element to its initial state, i.e. before\n\t * {@link module:ui/template~Template#apply} was called.\n\t */\n\trevertData?: RevertData;\n}\n\ninterface RevertData {\n\ttext?: string | null;\n\tchildren: Array<RevertData>;\n\tbindings: Array<Array<() => void>>;\n\tattributes: Record<string, string | null>;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editorui/bodycollection\n */\n\n/* globals document */\n\nimport Template from '../template';\nimport ViewCollection from '../viewcollection';\nimport type View from '../view';\n\nimport { createElement, type Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * This is a special {@link module:ui/viewcollection~ViewCollection} dedicated to elements that are detached\n * from the DOM structure of the editor, like panels, icons, etc.\n *\n * The body collection is available in the {@link module:ui/editorui/editoruiview~EditorUIView#body `editor.ui.view.body`} property.\n * Any plugin can add a {@link module:ui/view~View view} to this collection.\n * These views will render in a container placed directly in the `<body>` element.\n * The editor will detach and destroy this collection when the editor will be {@link module:core/editor/editor~Editor#destroy destroyed}.\n *\n * If you need to control the life cycle of the body collection on your own, you can create your own instance of this class.\n *\n * A body collection will render itself automatically in the DOM body element as soon as you call {@link ~BodyCollection#attachToDom}.\n * If you create multiple body collections, this class will create a special wrapper element in the DOM to limit the number of\n * elements created directly in the body and remove it when the last body collection will be\n * {@link ~BodyCollection#detachFromDom detached}.\n */\nexport default class BodyCollection extends ViewCollection {\n\t/**\n\t * The {@link module:core/editor/editor~Editor#locale editor's locale} instance.\n\t * See the view {@link module:ui/view~View#locale locale} property.\n\t */\n\tpublic readonly locale: Locale;\n\n\t/**\n\t * The element holding elements of the body region.\n\t */\n\tprivate _bodyCollectionContainer?: HTMLElement;\n\n\t/**\n\t * Creates a new instance of the {@link module:ui/editorui/bodycollection~BodyCollection}.\n\t *\n\t * @param locale The {@link module:core/editor/editor~Editor editor's locale} instance.\n\t * @param initialItems The initial items of the collection.\n\t */\n\tconstructor( locale: Locale, initialItems: Iterable<View> = [] ) {\n\t\tsuper( initialItems );\n\n\t\tthis.locale = locale;\n\t}\n\n\t/**\n\t * Attaches the body collection to the DOM body element. You need to execute this method to render the content of\n\t * the body collection.\n\t */\n\tpublic attachToDom(): void {\n\t\tthis._bodyCollectionContainer = new Template( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-reset_all',\n\t\t\t\t\t'ck-body',\n\t\t\t\t\t'ck-rounded-corners'\n\t\t\t\t],\n\t\t\t\tdir: this.locale.uiLanguageDirection\n\t\t\t},\n\t\t\tchildren: this\n\t\t} ).render() as HTMLElement;\n\n\t\tlet wrapper = document.querySelector( '.ck-body-wrapper' );\n\n\t\tif ( !wrapper ) {\n\t\t\twrapper = createElement( document, 'div', { class: 'ck-body-wrapper' } );\n\t\t\tdocument.body.appendChild( wrapper );\n\t\t}\n\n\t\twrapper.appendChild( this._bodyCollectionContainer );\n\t}\n\n\t/**\n\t * Detaches the collection from the DOM structure. Use this method when you do not need to use the body collection\n\t * anymore to clean-up the DOM structure.\n\t */\n\tpublic detachFromDom(): void {\n\t\tsuper.destroy();\n\n\t\tif ( this._bodyCollectionContainer ) {\n\t\t\tthis._bodyCollectionContainer.remove();\n\t\t}\n\n\t\tconst wrapper = document.querySelector( '.ck-body-wrapper' );\n\n\t\tif ( wrapper && wrapper.childElementCount == 0 ) {\n\t\t\twrapper.remove();\n\t\t}\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./icon.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* global DOMParser */\n\n/**\n * @module ui/icon/iconview\n */\n\nimport View from '../view';\n\nimport type { ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/icon/icon.css';\n\n/**\n * The icon view class.\n */\nexport default class IconView extends View {\n\t/**\n\t * The SVG source of the icon.\n\t *\n\t * @observable\n\t */\n\tdeclare public content: string | undefined;\n\n\t/**\n\t * This attribute specifies the boundaries to which the\n\t * icon content should stretch.\n\t *\n\t * @observable\n\t * @default '0 0 20 20'\n\t */\n\tdeclare public viewBox: string;\n\n\t/**\n\t * The fill color of the child `path.ck-icon__fill`.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public fillColor: string;\n\n\t/**\n\t * When set true (default), all parts of the icon inherit the fill color from the CSS `color` property of the\n\t * icon's DOM parent.\n\t *\n\t * This effectively makes the icon monochromatic and allows it to change its fill color dynamically, for instance,\n\t * when a {@link module:ui/button/buttonview~ButtonView} displays an icon and it switches between different states\n\t * (pushed, hovered, etc.) the icon will follow along.\n\t *\n\t * **Note**: For the monochromatic icon to render properly, it must be made up of shapes that can be filled\n\t * with color instead of, for instance, paths with strokes. Be sure to use the *outline stroke* tool\n\t * (the name could be different in your vector graphics editor) before exporting your icon. Also, remove any\n\t * excess `fill=\"...\"` attributes that could break the color inheritance.\n\t *\n\t * **Note**: If you want to preserve the original look of your icon and disable dynamic color inheritance,\n\t * set this flag to `false`.\n\t *\n\t * @observable\n\t * @default true\n\t */\n\tdeclare public isColorInherited: boolean;\n\n\t/**\n\t * A list of presentational attributes that can be set on the `<svg>` element and should be preserved\n\t * when the icon {@link module:ui/icon/iconview~IconView#content content} is loaded.\n\t *\n\t * See the [specification](https://www.w3.org/TR/SVG/styling.html#TermPresentationAttribute) to learn more.\n\t */\n\tprivate static presentationalAttributeNames: Array<string> = [\n\t\t'alignment-baseline', 'baseline-shift', 'clip-path', 'clip-rule', 'color', 'color-interpolation',\n\t\t'color-interpolation-filters', 'color-rendering', 'cursor', 'direction', 'display', 'dominant-baseline', 'fill', 'fill-opacity',\n\t\t'fill-rule', 'filter', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style',\n\t\t'font-variant', 'font-weight', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start',\n\t\t'mask', 'opacity', 'overflow', 'paint-order', 'pointer-events', 'shape-rendering', 'stop-color', 'stop-opacity', 'stroke',\n\t\t'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width',\n\t\t'text-anchor', 'text-decoration', 'text-overflow', 'text-rendering', 'transform', 'unicode-bidi', 'vector-effect',\n\t\t'visibility', 'white-space', 'word-spacing', 'writing-mode'\n\t];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'content', '' );\n\t\tthis.set( 'viewBox', '0 0 20 20' );\n\t\tthis.set( 'fillColor', '' );\n\t\tthis.set( 'isColorInherited', true );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'svg',\n\t\t\tns: 'http://www.w3.org/2000/svg',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-icon',\n\n\t\t\t\t\t// Exclude icon internals from the CSS reset to allow rich (non-monochromatic) icons\n\t\t\t\t\t// (https://github.com/ckeditor/ckeditor5/issues/12599).\n\t\t\t\t\t'ck-reset_all-excluded',\n\n\t\t\t\t\t// The class to remove the dynamic color inheritance is toggleable\n\t\t\t\t\t// (https://github.com/ckeditor/ckeditor5/issues/12599).\n\t\t\t\t\tbind.if( 'isColorInherited', 'ck-icon_inherit-color' )\n\t\t\t\t],\n\t\t\t\tviewBox: bind.to( 'viewBox' )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis._updateXMLContent();\n\t\tthis._colorFillPaths();\n\n\t\t// This is a hack for lack of innerHTML binding.\n\t\t// See: https://github.com/ckeditor/ckeditor5-ui/issues/99.\n\t\tthis.on<ObservableChangeEvent>( 'change:content', () => {\n\t\t\tthis._updateXMLContent();\n\t\t\tthis._colorFillPaths();\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent>( 'change:fillColor', () => {\n\t\t\tthis._colorFillPaths();\n\t\t} );\n\t}\n\n\t/**\n\t * Updates the {@link #element} with the value of {@link #content}.\n\t */\n\tprivate _updateXMLContent() {\n\t\tif ( this.content ) {\n\t\t\tconst parsed = new DOMParser().parseFromString( this.content.trim(), 'image/svg+xml' );\n\t\t\tconst svg = parsed.querySelector( 'svg' )!;\n\t\t\tconst viewBox = svg.getAttribute( 'viewBox' );\n\n\t\t\tif ( viewBox ) {\n\t\t\t\tthis.viewBox = viewBox;\n\t\t\t}\n\n\t\t\t// Preserve presentational attributes of the <svg> element from the source.\n\t\t\t// They can affect rendering of the entire icon (https://github.com/ckeditor/ckeditor5/issues/12597).\n\t\t\tfor ( const { name, value } of Array.from( svg.attributes ) ) {\n\t\t\t\tif ( IconView.presentationalAttributeNames.includes( name ) ) {\n\t\t\t\t\tthis.element!.setAttribute( name, value );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\twhile ( this.element!.firstChild ) {\n\t\t\t\tthis.element!.removeChild( this.element!.firstChild );\n\t\t\t}\n\n\t\t\twhile ( svg.childNodes.length > 0 ) {\n\t\t\t\tthis.element!.appendChild( svg.childNodes[ 0 ] );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Fills all child `path.ck-icon__fill` with the `#fillColor`.\n\t */\n\tprivate _colorFillPaths() {\n\t\tif ( this.fillColor ) {\n\t\t\tthis.element!.querySelectorAll( '.ck-icon__fill' ).forEach( path => {\n\t\t\t\t( path as HTMLElement ).style.fill = this.fillColor;\n\t\t\t} );\n\t\t}\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./button.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/button/buttonview\n */\n\nimport View from '../view';\nimport IconView from '../icon/iconview';\n\nimport type { TemplateDefinition } from '../template';\nimport type ViewCollection from '../viewcollection';\nimport type { default as Button, ButtonExecuteEvent } from './button';\n\nimport {\n\tenv,\n\tgetEnvKeystrokeText,\n\tuid,\n\ttype Locale\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/button/button.css';\n\n/**\n * The button view class.\n *\n * ```ts\n * const view = new ButtonView();\n *\n * view.set( {\n * \tlabel: 'A button',\n * \tkeystroke: 'Ctrl+B',\n * \ttooltip: true,\n * \twithText: true\n * } );\n *\n * view.render();\n *\n * document.body.append( view.element );\n * ```\n */\nexport default class ButtonView extends View<HTMLButtonElement> implements Button {\n\t/**\n\t * Collection of the child views inside of the button {@link #element}.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * Label of the button view. It is configurable using the {@link #label label attribute}.\n\t */\n\tpublic readonly labelView: View;\n\n\t/**\n\t * The icon view of the button. Will be added to {@link #children} when the\n\t * {@link #icon icon attribute} is defined.\n\t */\n\tpublic readonly iconView: IconView;\n\n\t/**\n\t * A view displaying the keystroke of the button next to the {@link #labelView label}.\n\t * Added to {@link #children} when the {@link #withKeystroke `withKeystroke` attribute}\n\t * is defined.\n\t */\n\tpublic readonly keystrokeView: View;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public class: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public labelStyle: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public icon: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isOn: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isVisible: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isToggleable: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public keystroke: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public label: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public tabindex: number;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public tooltip: Button[ 'tooltip' ];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public tooltipPosition: Button[ 'tooltipPosition' ];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public type: Button[ 'type' ];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public withText: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public withKeystroke: boolean;\n\n\t/**\n\t * Tooltip of the button bound to the template.\n\t *\n\t * @see #tooltip\n\t * @see module:ui/button/buttonview~ButtonView#_getTooltipString\n\t * @internal\n\t * @observable\n\t */\n\tdeclare public _tooltipString: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\t\tconst ariaLabelUid = uid();\n\n\t\t// Implement the Button interface.\n\t\tthis.set( 'class', undefined );\n\t\tthis.set( 'labelStyle', undefined );\n\t\tthis.set( 'icon', undefined );\n\t\tthis.set( 'isEnabled', true );\n\t\tthis.set( 'isOn', false );\n\t\tthis.set( 'isVisible', true );\n\t\tthis.set( 'isToggleable', false );\n\t\tthis.set( 'keystroke', undefined );\n\t\tthis.set( 'label', undefined );\n\t\tthis.set( 'tabindex', -1 );\n\t\tthis.set( 'tooltip', false );\n\t\tthis.set( 'tooltipPosition', 's' );\n\t\tthis.set( 'type', 'button' );\n\t\tthis.set( 'withText', false );\n\t\tthis.set( 'withKeystroke', false );\n\n\t\tthis.children = this.createCollection();\n\t\tthis.labelView = this._createLabelView( ariaLabelUid );\n\n\t\tthis.iconView = new IconView();\n\t\tthis.iconView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-button__icon'\n\t\t\t}\n\t\t} );\n\n\t\tthis.keystrokeView = this._createKeystrokeView();\n\n\t\tthis.bind( '_tooltipString' ).to(\n\t\t\tthis, 'tooltip',\n\t\t\tthis, 'label',\n\t\t\tthis, 'keystroke',\n\t\t\tthis._getTooltipString.bind( this )\n\t\t);\n\n\t\tconst template: TemplateDefinition & { on: object } = {\n\t\t\ttag: 'button',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isEnabled', 'ck-disabled', value => !value ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-hidden', value => !value ),\n\t\t\t\t\tbind.to( 'isOn', value => value ? 'ck-on' : 'ck-off' ),\n\t\t\t\t\tbind.if( 'withText', 'ck-button_with-text' ),\n\t\t\t\t\tbind.if( 'withKeystroke', 'ck-button_with-keystroke' )\n\t\t\t\t],\n\t\t\t\ttype: bind.to( 'type', value => value ? value : 'button' ),\n\t\t\t\ttabindex: bind.to( 'tabindex' ),\n\t\t\t\t'aria-labelledby': `ck-editor__aria-label_${ ariaLabelUid }`,\n\t\t\t\t'aria-disabled': bind.if( 'isEnabled', true, value => !value ),\n\t\t\t\t'aria-pressed': bind.to( 'isOn', value => this.isToggleable ? String( !!value ) : false ),\n\t\t\t\t'data-cke-tooltip-text': bind.to( '_tooltipString' ),\n\t\t\t\t'data-cke-tooltip-position': bind.to( 'tooltipPosition' )\n\t\t\t},\n\n\t\t\tchildren: this.children,\n\n\t\t\ton: {\n\t\t\t\tclick: bind.to( evt => {\n\t\t\t\t\t// We can't make the button disabled using the disabled attribute, because it won't be focusable.\n\t\t\t\t\t// Though, shouldn't this condition be moved to the button controller?\n\t\t\t\t\tif ( this.isEnabled ) {\n\t\t\t\t\t\tthis.fire<ButtonExecuteEvent>( 'execute' );\n\t\t\t\t\t} else {\n\t\t\t\t\t\t// Prevent the default when button is disabled, to block e.g.\n\t\t\t\t\t\t// automatic form submitting. See ckeditor/ckeditor5-link#74.\n\t\t\t\t\t\tevt.preventDefault();\n\t\t\t\t\t}\n\t\t\t\t} )\n\t\t\t}\n\t\t};\n\n\t\t// On Safari we have to force the focus on a button on click as it's the only browser\n\t\t// that doesn't do that automatically. See #12115.\n\t\tif ( env.isSafari ) {\n\t\t\ttemplate.on.mousedown = bind.to( evt => {\n\t\t\t\tthis.focus();\n\t\t\t\tevt.preventDefault();\n\t\t\t} );\n\t\t}\n\n\t\tthis.setTemplate( template );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tif ( this.icon ) {\n\t\t\tthis.iconView.bind( 'content' ).to( this, 'icon' );\n\t\t\tthis.children.add( this.iconView );\n\t\t}\n\n\t\tthis.children.add( this.labelView );\n\n\t\tif ( this.withKeystroke && this.keystroke ) {\n\t\t\tthis.children.add( this.keystrokeView );\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the {@link #element} of the button.\n\t */\n\tpublic focus(): void {\n\t\tthis.element!.focus();\n\t}\n\n\t/**\n\t * Creates a label view instance and binds it with button attributes.\n\t *\n\t * @param ariaLabelUid The aria label UID.\n\t */\n\tprivate _createLabelView( ariaLabelUid: string ) {\n\t\tconst labelView = new View();\n\t\tconst bind = this.bindTemplate;\n\n\t\tlabelView.setTemplate( {\n\t\t\ttag: 'span',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button__label'\n\t\t\t\t],\n\t\t\t\tstyle: bind.to( 'labelStyle' ),\n\t\t\t\tid: `ck-editor__aria-label_${ ariaLabelUid }`\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( 'label' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn labelView;\n\t}\n\n\t/**\n\t * Creates a view that displays a keystroke next to a {@link #labelView label }\n\t * and binds it with button attributes.\n\t */\n\tprivate _createKeystrokeView() {\n\t\tconst keystrokeView = new View();\n\n\t\tkeystrokeView.setTemplate( {\n\t\t\ttag: 'span',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button__keystroke'\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: this.bindTemplate.to( 'keystroke', text => getEnvKeystrokeText( text! ) )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn keystrokeView;\n\t}\n\n\t/**\n\t * Gets the text for the tooltip from the combination of\n\t * {@link #tooltip}, {@link #label} and {@link #keystroke} attributes.\n\t *\n\t * @see #tooltip\n\t * @see #_tooltipString\n\t * @param tooltip Button tooltip.\n\t * @param label Button label.\n\t * @param keystroke Button keystroke.\n\t */\n\tprivate _getTooltipString(\n\t\ttooltip: Button[ 'tooltip' ],\n\t\tlabel: string | undefined,\n\t\tkeystroke: string | undefined\n\t): string {\n\t\tif ( tooltip ) {\n\t\t\tif ( typeof tooltip == 'string' ) {\n\t\t\t\treturn tooltip;\n\t\t\t} else {\n\t\t\t\tif ( keystroke ) {\n\t\t\t\t\tkeystroke = getEnvKeystrokeText( keystroke );\n\t\t\t\t}\n\n\t\t\t\tif ( tooltip instanceof Function ) {\n\t\t\t\t\treturn tooltip( label!, keystroke );\n\t\t\t\t} else {\n\t\t\t\t\treturn `${ label }${ keystroke ? ` (${ keystroke })` : '' }`;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn '';\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./switchbutton.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/button/switchbuttonview\n */\n\nimport View from '../view';\nimport ButtonView from './buttonview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/button/switchbutton.css';\n\n/**\n * The switch button view class.\n *\n * ```ts\n * const view = new SwitchButtonView();\n *\n * view.set( {\n * \twithText: true,\n * \tlabel: 'Switch me!'\n * } );\n *\n * view.render();\n *\n * document.body.append( view.element );\n * ```\n */\nexport default class SwitchButtonView extends ButtonView {\n\t/**\n\t * The toggle switch of the button.\n\t */\n\tpublic readonly toggleSwitchView: View;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.isToggleable = true;\n\t\tthis.toggleSwitchView = this._createToggleView();\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-switchbutton'\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.children.add( this.toggleSwitchView );\n\t}\n\n\t/**\n\t * Creates a toggle child view.\n\t */\n\tprivate _createToggleView() {\n\t\tconst toggleSwitchView = new View();\n\n\t\ttoggleSwitchView.setTemplate( {\n\t\t\ttag: 'span',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-button__toggle'\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'span',\n\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-button__toggle__inner'\n\t\t\t\t\t\t]\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn toggleSwitchView;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/colorgrid/utils\n */\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\nexport type ColorOption = string | {\n\tcolor: string;\n\tlabel?: string;\n\thasBorder?: boolean;\n};\n\nexport interface NormalizedColorOption {\n\tmodel: string;\n\tlabel: string;\n\thasBorder: boolean;\n\tview: {\n\t\tname: string;\n\t\tstyles: {\n\t\t\tcolor: string;\n\t\t};\n\t};\n}\n\n/**\n * Returns color configuration options as defined in `editor.config.(fontColor|fontBackgroundColor).colors` or\n * `editor.config.table.(tableProperties|tableCellProperties).(background|border).colors\n * but processed to account for editor localization in the correct language.\n *\n * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n * when the user configuration is defined because the editor does not exist yet.\n *\n * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n */\nexport function getLocalizedColorOptions(\n\tlocale: Locale,\n\toptions: Array<NormalizedColorOption>\n): Array<NormalizedColorOption> {\n\tconst t = locale.t;\n\tconst localizedColorNames: Record<string, string | undefined> = {\n\t\tBlack: t( 'Black' ),\n\t\t'Dim grey': t( 'Dim grey' ),\n\t\tGrey: t( 'Grey' ),\n\t\t'Light grey': t( 'Light grey' ),\n\t\tWhite: t( 'White' ),\n\t\tRed: t( 'Red' ),\n\t\tOrange: t( 'Orange' ),\n\t\tYellow: t( 'Yellow' ),\n\t\t'Light green': t( 'Light green' ),\n\t\tGreen: t( 'Green' ),\n\t\tAquamarine: t( 'Aquamarine' ),\n\t\tTurquoise: t( 'Turquoise' ),\n\t\t'Light blue': t( 'Light blue' ),\n\t\tBlue: t( 'Blue' ),\n\t\tPurple: t( 'Purple' )\n\t};\n\n\treturn options.map( colorOption => {\n\t\tconst label = localizedColorNames[ colorOption.label ];\n\n\t\tif ( label && label != colorOption.label ) {\n\t\t\tcolorOption.label = label;\n\t\t}\n\n\t\treturn colorOption;\n\t} );\n}\n\n/**\n * Creates a unified color definition object from color configuration options.\n * The object contains the information necessary to both render the UI and initialize the conversion.\n */\nexport function normalizeColorOptions( options: Array<ColorOption> ): Array<NormalizedColorOption> {\n\treturn options\n\t\t.map( normalizeSingleColorDefinition )\n\t\t.filter( option => !!option );\n}\n\n/**\n * Creates a normalized color definition from the user-defined configuration.\n * The \"normalization\" means it will create full\n * {@link module:ui/colorgrid/colorgridview~ColorDefinition `ColorDefinition-like`}\n * object for string values, and add a `view` property, for each definition.\n */\nexport function normalizeSingleColorDefinition( color: ColorOption ): NormalizedColorOption {\n\tif ( typeof color === 'string' ) {\n\t\treturn {\n\t\t\tmodel: color,\n\t\t\tlabel: color,\n\t\t\thasBorder: false,\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\tcolor\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t} else {\n\t\treturn {\n\t\t\tmodel: color.color,\n\t\t\tlabel: color.label || color.color,\n\t\t\thasBorder: color.hasBorder === undefined ? false : color.hasBorder,\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\tcolor: `${ color.color }`\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/colorgrid/colortileview\n */\n\nimport ButtonView from '../button/buttonview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\nimport checkIcon from '../../theme/icons/color-tile-check.svg';\n\n/**\n * This class represents a single color tile in the {@link module:ui/colorgrid/colorgridview~ColorGridView}.\n */\nexport default class ColorTileView extends ButtonView {\n\t/**\n\t * String representing a color shown as tile's background.\n\t */\n\tdeclare public color: string | undefined;\n\n\t/**\n\t * A flag that toggles a special CSS class responsible for displaying\n\t * a border around the button.\n\t */\n\tdeclare public hasBorder: boolean;\n\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'color', undefined );\n\t\tthis.set( 'hasBorder', false );\n\n\t\tthis.icon = checkIcon;\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tstyle: {\n\t\t\t\t\tbackgroundColor: bind.to( 'color' )\n\t\t\t\t},\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-color-grid__tile',\n\t\t\t\t\tbind.if( 'hasBorder', 'ck-color-table__color-tile_bordered' )\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.iconView.fillColor = 'hsl(0, 0%, 100%)';\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path class=\\\"ck-icon__fill\\\" d=\\\"M16.935 5.328a2 2 0 0 1 0 2.829l-7.778 7.778a2 2 0 0 1-2.829 0L3.5 13.107a1.999 1.999 0 1 1 2.828-2.829l.707.707a1 1 0 0 0 1.414 0l5.658-5.657a2 2 0 0 1 2.828 0z\\\"/><path d=\\\"M14.814 6.035 8.448 12.4a1 1 0 0 1-1.414 0l-1.413-1.415A1 1 0 1 0 4.207 12.4l2.829 2.829a1 1 0 0 0 1.414 0l7.778-7.778a1 1 0 1 0-1.414-1.415z\\\"/></svg>\";","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./colorgrid.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/colorgrid/colorgridview\n */\n\nimport View from '../view';\nimport ColorTileView from './colortileview';\nimport addKeyboardHandlingForGrid from '../bindings/addkeyboardhandlingforgrid';\n\nimport type { ButtonExecuteEvent } from '../button/button';\nimport type DropdownPanelFocusable from '../dropdown/dropdownpanelfocusable';\nimport type ViewCollection from '../viewcollection';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/colorgrid/colorgrid.css';\n\n/**\n * A grid of {@link module:ui/colorgrid/colortileview~ColorTileView color tiles}.\n */\nexport default class ColorGridView extends View implements DropdownPanelFocusable {\n\t/**\n\t * A number of columns for the tiles grid.\n\t */\n\tpublic readonly columns: number;\n\n\t/**\n\t * Collection of the child tile views.\n\t */\n\tpublic readonly items: ViewCollection<ColorTileView>;\n\n\t/**\n\t * Tracks information about DOM focus in the grid.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * The color of the currently selected color tile in {@link #items}.\n\t *\n\t * @observable\n\t */\n\tdeclare public selectedColor: string | undefined | null;\n\n\t/**\n\t * Creates an instance of a color grid containing {@link module:ui/colorgrid/colortileview~ColorTileView tiles}.\n\t *\n\t * @fires execute\n\t * @param locale The localization services instance.\n\t * @param options Component configuration\n\t * @param options.colorDefinitions Array with definitions\n\t * required to create the {@link module:ui/colorgrid/colortileview~ColorTileView tiles}.\n\t * @param options.columns A number of columns to display the tiles.\n\t */\n\tconstructor(\n\t\tlocale?: Locale,\n\t\toptions?: {\n\t\t\tcolorDefinitions?: Array<ColorDefinition>;\n\t\t\tcolumns?: number;\n\t\t}\n\t) {\n\t\tsuper( locale );\n\n\t\tconst colorDefinitions = options && options.colorDefinitions ? options.colorDefinitions : [];\n\n\t\tthis.columns = options && options.columns ? options.columns : 5;\n\n\t\tconst viewStyleAttribute = {\n\t\t\tgridTemplateColumns: `repeat( ${ this.columns }, 1fr)`\n\t\t};\n\n\t\tthis.set( 'selectedColor', undefined );\n\n\t\tthis.items = this.createCollection();\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\tthis.items.on<CollectionAddEvent<ColorTileView>>( 'add', ( evt, colorTile ) => {\n\t\t\tcolorTile.isOn = colorTile.color === this.selectedColor;\n\t\t} );\n\n\t\tcolorDefinitions.forEach( color => {\n\t\t\tconst colorTile = new ColorTileView();\n\n\t\t\tcolorTile.set( {\n\t\t\t\tcolor: color.color,\n\t\t\t\tlabel: color.label,\n\t\t\t\ttooltip: true,\n\t\t\t\thasBorder: color.options.hasBorder\n\t\t\t} );\n\n\t\t\tcolorTile.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\t\tthis.fire<ColorGridViewExecuteEvent>( 'execute', {\n\t\t\t\t\tvalue: color.color,\n\t\t\t\t\thasBorder: color.options.hasBorder,\n\t\t\t\t\tlabel: color.label\n\t\t\t\t} );\n\t\t\t} );\n\n\t\t\tthis.items.add( colorTile );\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tchildren: this.items,\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-color-grid'\n\t\t\t\t],\n\t\t\t\tstyle: viewStyleAttribute\n\t\t\t}\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent<string | undefined>>( 'change:selectedColor', ( evt, name, selectedColor ) => {\n\t\t\tfor ( const item of this.items ) {\n\t\t\t\titem.isOn = item.color === selectedColor;\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the first focusable in {@link #items}.\n\t */\n\tpublic focus(): void {\n\t\tif ( this.items.length ) {\n\t\t\tthis.items.first!.focus();\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the last focusable in {@link #items}.\n\t */\n\tpublic focusLast(): void {\n\t\tif ( this.items.length ) {\n\t\t\tthis.items.last!.focus();\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Items added before rendering should be known to the #focusTracker.\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t}\n\n\t\tthis.items.on<CollectionAddEvent<ColorTileView>>( 'add', ( evt, item ) => {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t} );\n\n\t\tthis.items.on<CollectionRemoveEvent<ColorTileView>>( 'remove', ( evt, item ) => {\n\t\t\tthis.focusTracker.remove( item.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\taddKeyboardHandlingForGrid( {\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tgridItems: this.items,\n\t\t\tnumberOfColumns: this.columns,\n\t\t\tuiLanguageDirection: this.locale && this.locale.uiLanguageDirection\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n}\n\n/**\n * A color definition used to create a {@link module:ui/colorgrid/colortileview~ColorTileView}.\n *\n * ```json\n * {\n * \tcolor: 'hsl(0, 0%, 75%)',\n * \tlabel: 'Light Grey',\n * \toptions: {\n * \t\thasBorder: true\n * \t}\n * }\n * ```\n */\nexport interface ColorDefinition {\n\n\t/**\n\t * String representing a color.\n\t * It is used as value of background-color style in {@link module:ui/colorgrid/colortileview~ColorTileView}.\n\t */\n\tcolor: string;\n\n\t/**\n\t * String used as label for {@link module:ui/colorgrid/colortileview~ColorTileView}.\n\t */\n\tlabel: string;\n\n\t/**\n\t * Additional options passed to create a {@link module:ui/colorgrid/colortileview~ColorTileView}.\n\t */\n\toptions: {\n\n\t\t/**\n\t\t * A flag that indicates if special a CSS class should be added\n\t\t * to {@link module:ui/colorgrid/colortileview~ColorTileView}, which renders a border around it.\n\t\t */\n\t\thasBorder: boolean;\n\t};\n}\n\n/**\n * Fired when the `ColorTileView` for the picked item is executed.\n *\n * @eventName ~ColorGridView#execute\n * @param data Additional information about the event.\n*/\nexport type ColorGridViewExecuteEvent = {\n\tname: 'execute';\n\targs: [ data: ColorGridViewExecuteEventData ];\n};\n\n/**\n * The data of {@link ~ColorGridViewExecuteEvent execute event}.\n */\nexport interface ColorGridViewExecuteEventData {\n\n\t/**\n\t * The value of the selected color ({@link module:ui/colorgrid/colorgridview~ColorDefinition#color `color.color`}).\n\t */\n\tvalue: string;\n\n\t/**\n\t * The `hasBorder` property of the selected color\n\t * ({@link module:ui/colorgrid/colorgridview~ColorDefinition#options `color.options.hasBorder`}).\n\t */\n\thasBorder: boolean;\n\n\t/**\n\t * The label of the selected color ({@link module:ui/colorgrid/colorgridview~ColorDefinition#label `color.label`})\n\t */\n\tlabel: string;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/componentfactory\n */\n\nimport { CKEditorError, type Locale } from '@ckeditor/ckeditor5-utils';\nimport type { Editor } from '@ckeditor/ckeditor5-core';\n\nimport type View from './view';\n\n/**\n * A helper class implementing the UI component ({@link module:ui/view~View view}) factory.\n *\n * It allows functions producing specific UI components to be registered under their unique names\n * in the factory. A registered component can be then instantiated by providing its name.\n * Note that the names are case insensitive.\n *\n * ```ts\n * // The editor provides localization tools for the factory.\n * const factory = new ComponentFactory( editor );\n *\n * factory.add( 'foo', locale => new FooView( locale ) );\n * factory.add( 'bar', locale => new BarView( locale ) );\n *\n * // An instance of FooView.\n * const fooInstance = factory.create( 'foo' );\n *\n * // Names are case insensitive so this is also allowed:\n * const barInstance = factory.create( 'Bar' );\n * ```\n *\n * The {@link module:core/editor/editor~Editor#locale editor locale} is passed to the factory\n * function when {@link module:ui/componentfactory~ComponentFactory#create} is called.\n */\nexport default class ComponentFactory {\n\t/**\n\t * The editor instance that the factory belongs to.\n\t */\n\tpublic readonly editor: Editor;\n\n\t/**\n\t * Registered component factories.\n\t */\n\tprivate readonly _components = new Map<string, { originalName: string; callback: ( locale: Locale ) => View }>();\n\n\t/**\n\t * Creates an instance of the factory.\n\t *\n\t * @param editor The editor instance.\n\t */\n\tconstructor( editor: Editor ) {\n\t\tthis.editor = editor;\n\t}\n\n\t/**\n\t * Returns an iterator of registered component names. Names are returned in lower case.\n\t */\n\tpublic* names(): IterableIterator<string> {\n\t\tfor ( const value of this._components.values() ) {\n\t\t\tyield value.originalName;\n\t\t}\n\t}\n\n\t/**\n\t * Registers a component factory function that will be used by the\n\t * {@link #create create} method and called with the\n\t * {@link module:core/editor/editor~Editor#locale editor locale} as an argument,\n\t * allowing localization of the {@link module:ui/view~View view}.\n\t *\n\t * @param name The name of the component.\n\t * @param callback The callback that returns the component.\n\t */\n\tpublic add( name: string, callback: ( locale: Locale ) => View ): void {\n\t\tthis._components.set( getNormalized( name ), { callback, originalName: name } );\n\t}\n\n\t/**\n\t * Creates an instance of a component registered in the factory under a specific name.\n\t *\n\t * When called, the {@link module:core/editor/editor~Editor#locale editor locale} is passed to\n\t * the previously {@link #add added} factory function, allowing localization of the\n\t * {@link module:ui/view~View view}.\n\t *\n\t * @param name The name of the component.\n\t * @returns The instantiated component view.\n\t */\n\tpublic create( name: string ): View {\n\t\tif ( !this.has( name ) ) {\n\t\t\t/**\n\t\t\t * The required component is not registered in the component factory. Please make sure\n\t\t\t * the provided name is correct and the component has been correctly\n\t\t\t * {@link module:ui/componentfactory~ComponentFactory#add added} to the factory.\n\t\t\t *\n\t\t\t * @error componentfactory-item-missing\n\t\t\t * @param name The name of the missing component.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'componentfactory-item-missing',\n\t\t\t\tthis,\n\t\t\t\t{ name }\n\t\t\t);\n\t\t}\n\n\t\treturn this._components.get( getNormalized( name ) )!.callback( this.editor.locale );\n\t}\n\n\t/**\n\t * Checks if a component of a given name is registered in the factory.\n\t *\n\t * @param name The name of the component.\n\t */\n\tpublic has( name: string ): boolean {\n\t\treturn this._components.has( getNormalized( name ) );\n\t}\n}\n\n/**\n * Ensures that the component name used as the key in the internal map is in lower case.\n */\nfunction getNormalized( name: unknown ) {\n\treturn String( name ).toLowerCase();\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./dropdown.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/dropdownview\n */\n\nimport View from '../view';\n\nimport type { default as DropdownButton, DropdownButtonOpenEvent } from './button/dropdownbutton';\nimport type { default as DropdownPanelView, PanelPosition } from './dropdownpanelview';\nimport type { FocusableView } from '../focuscycler';\nimport type ListView from '../list/listview';\nimport type ToolbarView from '../toolbar/toolbarview';\n\nimport {\n\tKeystrokeHandler,\n\tFocusTracker,\n\tgetOptimalPosition,\n\ttype Locale,\n\ttype ObservableChangeEvent,\n\ttype PositioningFunction\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/dropdown/dropdown.css';\n\n/**\n * The dropdown view class. It manages the dropdown button and dropdown panel.\n *\n * In most cases, the easiest way to create a dropdown is by using the {@link module:ui/dropdown/utils~createDropdown}\n * util:\n *\n * ```ts\n * const dropdown = createDropdown( locale );\n *\n * // Configure dropdown's button properties:\n * dropdown.buttonView.set( {\n * \tlabel: 'A dropdown',\n * \twithText: true\n * } );\n *\n * dropdown.render();\n *\n * dropdown.panelView.element.textContent = 'Content of the panel';\n *\n * // Will render a dropdown with a panel containing a \"Content of the panel\" text.\n * document.body.appendChild( dropdown.element );\n * ```\n *\n * If you want to add a richer content to the dropdown panel, you can use the {@link module:ui/dropdown/utils~addListToDropdown}\n * and {@link module:ui/dropdown/utils~addToolbarToDropdown} helpers. See more examples in\n * {@link module:ui/dropdown/utils~createDropdown} documentation.\n *\n * If you want to create a completely custom dropdown, then you can compose it manually:\n *\n * ```ts\n * const button = new DropdownButtonView( locale );\n * const panel = new DropdownPanelView( locale );\n * const dropdown = new DropdownView( locale, button, panel );\n *\n * button.set( {\n * \tlabel: 'A dropdown',\n * \twithText: true\n * } );\n *\n * dropdown.render();\n *\n * panel.element.textContent = 'Content of the panel';\n *\n * // Will render a dropdown with a panel containing a \"Content of the panel\" text.\n * document.body.appendChild( dropdown.element );\n * ```\n *\n * However, dropdown created this way will contain little behavior. You will need to implement handlers for actions\n * such as {@link module:ui/bindings/clickoutsidehandler~clickOutsideHandler clicking outside an open dropdown}\n * (which should close it) and support for arrow keys inside the panel. Therefore, unless you really know what\n * you do and you really need to do it, it is recommended to use the {@link module:ui/dropdown/utils~createDropdown} helper.\n */\nexport default class DropdownView extends View<HTMLDivElement> {\n\t/**\n\t * Button of the dropdown view. Clicking the button opens the {@link #panelView}.\n\t */\n\tpublic readonly buttonView: DropdownButton & FocusableView;\n\n\t/**\n\t * Panel of the dropdown. It opens when the {@link #buttonView} is\n\t * {@link module:ui/button/button~Button#event:execute executed} (i.e. clicked).\n\t *\n\t * Child views can be added to the panel's `children` collection:\n\t *\n\t * ```ts\n\t * dropdown.panelView.children.add( childView );\n\t * ```\n\t *\n\t * See {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView#children} and\n\t * {@link module:ui/viewcollection~ViewCollection#add}.\n\t */\n\tpublic readonly panelView: DropdownPanelView;\n\n\t/**\n\t * Tracks information about the DOM focus in the dropdown.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}. It manages\n\t * keystrokes of the dropdown:\n\t *\n\t * * <kbd>▼</kbd> opens the dropdown,\n\t * * <kbd>◀</kbd> and <kbd>Esc</kbd> closes the dropdown.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * A child {@link module:ui/list/listview~ListView list view} of the dropdown located\n\t * in its {@link module:ui/dropdown/dropdownview~DropdownView#panelView panel}.\n\t *\n\t * **Note**: Only supported when dropdown has list view added using {@link module:ui/dropdown/utils~addListToDropdown}.\n\t */\n\tpublic listView?: ListView;\n\n\t/**\n\t * A child toolbar of the dropdown located in the\n\t * {@link module:ui/dropdown/dropdownview~DropdownView#panelView panel}.\n\t *\n\t * **Note**: Only supported when dropdown has list view added using {@link module:ui/dropdown/utils~addToolbarToDropdown}.\n\t */\n\tpublic toolbarView?: ToolbarView;\n\n\t/**\n\t * Controls whether the dropdown view is open, i.e. shows or hides the {@link #panelView panel}.\n\t *\n\t * **Note**: When the dropdown gets open, it will attempt to call `focus()` on the first child of its {@link #panelView}.\n\t * See {@link module:ui/dropdown/utils~addToolbarToDropdown}, {@link module:ui/dropdown/utils~addListToDropdown}, and\n\t * {@link module:ui/dropdown/utils~focusChildOnDropdownOpen} to learn more about focus management in dropdowns.\n\t *\n\t * @observable\n\t */\n\tdeclare public isOpen: boolean;\n\n\t/**\n\t * Controls whether the dropdown is enabled, i.e. it can be clicked and execute an action.\n\t *\n\t * See {@link module:ui/button/buttonview~ButtonView#isEnabled}.\n\t *\n\t * @observable\n\t */\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * (Optional) The additional CSS class set on the dropdown {@link #element}.\n\t *\n\t * @observable\n\t */\n\tdeclare public class: string | undefined;\n\n\t/**\n\t * (Optional) The `id` attribute of the dropdown (i.e. to pair with a `<label>` element).\n\t *\n\t * @observable\n\t */\n\tdeclare public id: string | undefined;\n\n\t/**\n\t * The position of the panel, relative to the dropdown.\n\t *\n\t * **Note**: When `'auto'`, the panel will use one of the remaining positions to stay\n\t * in the viewport, visible to the user. The positions correspond directly to\n\t * {@link module:ui/dropdown/dropdownview~DropdownView.defaultPanelPositions default panel positions}.\n\t *\n\t * **Note**: This value has an impact on the\n\t * {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView#position} property\n\t * each time the panel becomes {@link #isOpen open}.\n\t *\n\t * @observable\n\t * @default 'auto'\n\t */\n\tdeclare public panelPosition: PanelPosition | 'auto';\n\n\t/**\n\t * @observable\n\t */\n\tdeclare public ariaDescribedById: string | undefined;\n\n\t/**\n\t * Creates an instance of the dropdown.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param locale The localization services instance.\n\t */\n\tconstructor(\n\t\tlocale: Locale | undefined,\n\t\tbuttonView: DropdownButton & FocusableView,\n\t\tpanelView: DropdownPanelView\n\t) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.buttonView = buttonView;\n\t\tthis.panelView = panelView;\n\n\t\tthis.set( 'isOpen', false );\n\t\tthis.set( 'isEnabled', true );\n\t\tthis.set( 'class', undefined );\n\t\tthis.set( 'id', undefined );\n\t\tthis.set( 'panelPosition', 'auto' );\n\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-dropdown',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isEnabled', 'ck-disabled', value => !value )\n\t\t\t\t],\n\t\t\t\tid: bind.to( 'id' ),\n\t\t\t\t'aria-describedby': bind.to( 'ariaDescribedById' )\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\tbuttonView,\n\t\t\t\tpanelView\n\t\t\t]\n\t\t} );\n\n\t\tbuttonView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-dropdown__button'\n\t\t\t\t],\n\t\t\t\t'data-cke-tooltip-disabled': bind.to( 'isOpen' )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.focusTracker.add( this.buttonView.element! );\n\t\tthis.focusTracker.add( this.panelView.element! );\n\n\t\t// Toggle the dropdown when its button has been clicked.\n\t\tthis.listenTo<DropdownButtonOpenEvent>( this.buttonView, 'open', () => {\n\t\t\tthis.isOpen = !this.isOpen;\n\t\t} );\n\n\t\t// Toggle the visibility of the panel when the dropdown becomes open.\n\t\tthis.panelView.bind( 'isVisible' ).to( this, 'isOpen' );\n\n\t\t// Let the dropdown control the position of the panel. The position must\n\t\t// be updated every time the dropdown is open.\n\t\tthis.on<ObservableChangeEvent<boolean>>( 'change:isOpen', ( evt, name, isOpen ) => {\n\t\t\tif ( !isOpen ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If \"auto\", find the best position of the panel to fit into the viewport.\n\t\t\t// Otherwise, simply assign the static position.\n\t\t\tif ( this.panelPosition === 'auto' ) {\n\t\t\t\tthis.panelView.position = DropdownView._getOptimalPosition( {\n\t\t\t\t\telement: this.panelView.element!,\n\t\t\t\t\ttarget: this.buttonView.element!,\n\t\t\t\t\tfitInViewport: true,\n\t\t\t\t\tpositions: this._panelPositions\n\t\t\t\t} ).name as PanelPosition;\n\t\t\t} else {\n\t\t\t\tthis.panelView.position = this.panelPosition;\n\t\t\t}\n\t\t} );\n\n\t\t// Listen for keystrokes coming from within #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\tconst closeDropdown = ( data: unknown, cancel: () => void ) => {\n\t\t\tif ( this.isOpen ) {\n\t\t\t\tthis.isOpen = false;\n\t\t\t\tcancel();\n\t\t\t}\n\t\t};\n\n\t\t// Open the dropdown panel using the arrow down key, just like with return or space.\n\t\tthis.keystrokes.set( 'arrowdown', ( data, cancel ) => {\n\t\t\t// Don't open if the dropdown is disabled or already open.\n\t\t\tif ( this.buttonView.isEnabled && !this.isOpen ) {\n\t\t\t\tthis.isOpen = true;\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Block the right arrow key (until nested dropdowns are implemented).\n\t\tthis.keystrokes.set( 'arrowright', ( data, cancel ) => {\n\t\t\tif ( this.isOpen ) {\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Close the dropdown using the arrow left/escape key.\n\t\tthis.keystrokes.set( 'arrowleft', closeDropdown );\n\t\tthis.keystrokes.set( 'esc', closeDropdown );\n\t}\n\n\t/**\n\t * Focuses the {@link #buttonView}.\n\t */\n\tpublic focus(): void {\n\t\tthis.buttonView.focus();\n\t}\n\n\t/**\n\t * Returns {@link #panelView panel} positions to be used by the\n\t * {@link module:utils/dom/position~getOptimalPosition `getOptimalPosition()`}\n\t * utility considering the direction of the language the UI of the editor is displayed in.\n\t */\n\tprivate get _panelPositions(): Array<PositioningFunction> {\n\t\tconst {\n\t\t\tsouth, north,\n\t\t\tsouthEast, southWest,\n\t\t\tnorthEast, northWest,\n\t\t\tsouthMiddleEast, southMiddleWest,\n\t\t\tnorthMiddleEast, northMiddleWest\n\t\t} = DropdownView.defaultPanelPositions;\n\n\t\tif ( this.locale!.uiLanguageDirection !== 'rtl' ) {\n\t\t\treturn [\n\t\t\t\tsouthEast, southWest, southMiddleEast, southMiddleWest, south,\n\t\t\t\tnorthEast, northWest, northMiddleEast, northMiddleWest, north\n\t\t\t];\n\t\t} else {\n\t\t\treturn [\n\t\t\t\tsouthWest, southEast, southMiddleWest, southMiddleEast, south,\n\t\t\t\tnorthWest, northEast, northMiddleWest, northMiddleEast, north\n\t\t\t];\n\t\t}\n\t}\n\n\t/**\n\t * A set of positioning functions used by the dropdown view to determine\n\t * the optimal position (i.e. fitting into the browser viewport) of its\n\t * {@link module:ui/dropdown/dropdownview~DropdownView#panelView panel} when\n\t * {@link module:ui/dropdown/dropdownview~DropdownView#panelPosition} is set to 'auto'`.\n\t *\n\t * The available positioning functions are as follow:\n\t *\n\t * **South**\n\t *\n\t * * `south`\n\t *\n\t * ```\n\t *\t\t\t[ Button ]\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southEast`\n\t *\n\t * ```\n\t *\t\t[ Button ]\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southWest`\n\t *\n\t * ```\n\t *\t\t         [ Button ]\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southMiddleEast`\n\t *\n\t * ```\n\t *\t\t  [ Button ]\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southMiddleWest`\n\t *\n\t * ```\n\t *\t\t       [ Button ]\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * **North**\n\t *\n\t * * `north`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t *\t\t    [ Button ]\n\t * ```\n\t *\n\t * * `northEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t *\t\t[ Button ]\n\t * ```\n\t *\n\t * * `northWest`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t *\t\t         [ Button ]\n\t * ```\n\t *\n\t * * `northMiddleEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t *\t\t  [ Button ]\n\t * ```\n\t *\n\t * * `northMiddleWest`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|      Panel      |\n\t *\t\t+-----------------+\n\t *\t\t       [ Button ]\n\t * ```\n\t *\n\t * Positioning functions are compatible with {@link module:utils/dom/position~Position}.\n\t *\n\t * The name that position function returns will be reflected in dropdown panel's class that\n\t * controls its placement. See {@link module:ui/dropdown/dropdownview~DropdownView#panelPosition}\n\t * to learn more.\n\t */\n\tpublic static defaultPanelPositions: Record<string, PositioningFunction> = {\n\t\tsouth: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 2,\n\t\t\t\tname: 's'\n\t\t\t};\n\t\t},\n\t\tsouthEast: buttonRect => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left,\n\t\t\t\tname: 'se'\n\t\t\t};\n\t\t},\n\t\tsouthWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - panelRect.width + buttonRect.width,\n\t\t\t\tname: 'sw'\n\t\t\t};\n\t\t},\n\t\tsouthMiddleEast: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 4,\n\t\t\t\tname: 'sme'\n\t\t\t};\n\t\t},\n\t\tsouthMiddleWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.bottom,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) * 3 / 4,\n\t\t\t\tname: 'smw'\n\t\t\t};\n\t\t},\n\t\tnorth: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 2,\n\t\t\t\tname: 'n'\n\t\t\t};\n\t\t},\n\t\tnorthEast: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left,\n\t\t\t\tname: 'ne'\n\t\t\t};\n\t\t},\n\t\tnorthWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - panelRect.width + buttonRect.width,\n\t\t\t\tname: 'nw'\n\t\t\t};\n\t\t},\n\t\tnorthMiddleEast: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) / 4,\n\t\t\t\tname: 'nme'\n\t\t\t};\n\t\t},\n\t\tnorthMiddleWest: ( buttonRect, panelRect ) => {\n\t\t\treturn {\n\t\t\t\ttop: buttonRect.top - panelRect.height,\n\t\t\t\tleft: buttonRect.left - ( panelRect.width - buttonRect.width ) * 3 / 4,\n\t\t\t\tname: 'nmw'\n\t\t\t};\n\t\t}\n\t};\n\n\t/**\n\t * A function used to calculate the optimal position for the dropdown panel.\n\t */\n\tprivate static _getOptimalPosition = getOptimalPosition;\n}\n\n/**\n * Fired when the toolbar button or list item is executed.\n *\n * For {@link ~DropdownView#listView} It fires when a child of some {@link module:ui/list/listitemview~ListItemView}\n * fired `execute`.\n *\n * For {@link ~DropdownView#toolbarView} It fires when one of the buttons has been\n * {@link module:ui/button/button~Button#event:execute executed}.\n *\n * **Note**: Only supported when dropdown has list view added using {@link module:ui/dropdown/utils~addListToDropdown}\n * or {@link module:ui/dropdown/utils~addToolbarToDropdown}.\n *\n * @eventName ~DropdownView#execute\n */\nexport type DropdownViewEvent = {\n\tname: 'execute';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/dropdownpanelview\n */\n\nimport View from '../view';\nimport type ViewCollection from '../viewcollection';\nimport type DropdownPanelFocusable from './dropdownpanelfocusable';\n\nimport { logWarning, type Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The dropdown panel view class.\n *\n * See {@link module:ui/dropdown/dropdownview~DropdownView} to learn about the common usage.\n */\nexport default class DropdownPanelView extends View implements DropdownPanelFocusable {\n\t/**\n\t * Collection of the child views in this panel.\n\t *\n\t * A common child type is the {@link module:ui/list/listview~ListView} and {@link module:ui/toolbar/toolbarview~ToolbarView}.\n\t * See {@link module:ui/dropdown/utils~addListToDropdown} and\n\t * {@link module:ui/dropdown/utils~addToolbarToDropdown} to learn more about child views of dropdowns.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * Controls whether the panel is visible.\n\t *\n\t * @observable\n\t */\n\tdeclare public isVisible: boolean;\n\n\t/**\n\t * The position of the panel, relative to the parent.\n\t *\n\t * This property is reflected in the CSS class set to {@link #element} that controls\n\t * the position of the panel.\n\t *\n\t * @observable\n\t * @default 'se'\n\t */\n\tdeclare public position: PanelPosition;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'isVisible', false );\n\t\tthis.set( 'position', 'se' );\n\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-reset',\n\t\t\t\t\t'ck-dropdown__panel',\n\t\t\t\t\tbind.to( 'position', value => `ck-dropdown__panel_${ value }` ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-dropdown__panel-visible' )\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: this.children,\n\n\t\t\ton: {\n\t\t\t\t// Drag and drop in the panel should not break the selection in the editor.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/228\n\t\t\t\tselectstart: bind.to( evt => evt.preventDefault() )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the first view in the {@link #children} collection.\n\t *\n\t * See also {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable}.\n\t */\n\tpublic focus(): void {\n\t\tif ( this.children.length ) {\n\t\t\tconst firstChild: any = this.children.first;\n\n\t\t\tif ( typeof firstChild.focus === 'function' ) {\n\t\t\t\tfirstChild.focus();\n\t\t\t} else {\n\t\t\t\t/**\n\t\t\t\t * The child view of a dropdown could not be focused because it is missing the `focus()` method.\n\t\t\t\t *\n\t\t\t\t * This warning appears when a dropdown {@link module:ui/dropdown/dropdownview~DropdownView#isOpen gets open} and it\n\t\t\t\t * attempts to focus the {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView#children first child} of its panel\n\t\t\t\t * but the child does not implement the\n\t\t\t\t * {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable focusable interface}.\n\t\t\t\t *\n\t\t\t\t * Focusing the content of a dropdown on open greatly improves the accessibility. Please make sure the view instance\n\t\t\t\t * provides the `focus()` method for the best user experience.\n\t\t\t\t *\n\t\t\t\t * @error ui-dropdown-panel-focus-child-missing-focus\n\t\t\t\t * @param childView\n\t\t\t\t * @param dropdownPanel\n\t\t\t\t */\n\t\t\t\tlogWarning( 'ui-dropdown-panel-focus-child-missing-focus', { childView: this.children.first, dropdownPanel: this } );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the view element or last item in view collection on opening dropdown's panel.\n\t *\n\t * See also {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable}.\n\t */\n\tpublic focusLast(): void {\n\t\tif ( this.children.length ) {\n\t\t\tconst lastChild: any = this.children.last;\n\n\t\t\tif ( typeof lastChild.focusLast === 'function' ) {\n\t\t\t\tlastChild.focusLast();\n\t\t\t} else {\n\t\t\t\tlastChild.focus();\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * The position of the panel, relative to the parent.\n */\nexport type PanelPosition = 's' | 'se' | 'sw' | 'sme' | 'smw' | 'n' | 'ne' | 'nw' | 'nme' | 'nmw';\n","export default \"<svg viewBox=\\\"0 0 10 10\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M.941 4.523a.75.75 0 1 1 1.06-1.06l3.006 3.005 3.005-3.005a.75.75 0 1 1 1.06 1.06l-3.549 3.55a.75.75 0 0 1-1.168-.136L.941 4.523z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/button/dropdownbuttonview\n */\n\nimport ButtonView from '../../button/buttonview';\nimport type DropdownButton from './dropdownbutton';\nimport IconView from '../../icon/iconview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\nimport dropdownArrowIcon from '../../../theme/icons/dropdown-arrow.svg';\n\n/**\n * The default dropdown button view class.\n *\n * ```ts\n * const view = new DropdownButtonView();\n *\n * view.set( {\n * \tlabel: 'A button',\n * \tkeystroke: 'Ctrl+B',\n * \ttooltip: true\n * } );\n *\n * view.render();\n *\n * document.body.append( view.element );\n * ```\n *\n * Also see the {@link module:ui/dropdown/utils~createDropdown `createDropdown()` util}.\n */\nexport default class DropdownButtonView extends ButtonView implements DropdownButton {\n\t/**\n\t * An icon that displays arrow to indicate a dropdown button.\n\t */\n\tpublic readonly arrowView: IconView;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.arrowView = this._createArrowView();\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\t'aria-haspopup': true,\n\t\t\t\t'aria-expanded': this.bindTemplate.to( 'isOn', value => String( value ) )\n\t\t\t}\n\t\t} );\n\n\t\t// The DropdownButton interface expects the open event upon which will open the dropdown.\n\t\tthis.delegate( 'execute' ).to( this, 'open' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.children.add( this.arrowView );\n\t}\n\n\t/**\n\t * Creates a {@link module:ui/icon/iconview~IconView} instance as {@link #arrowView}.\n\t */\n\tprivate _createArrowView() {\n\t\tconst arrowView = new IconView();\n\n\t\tarrowView.content = dropdownArrowIcon;\n\n\t\tarrowView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-dropdown__arrow'\n\t\t\t}\n\t\t} );\n\n\t\treturn arrowView;\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./splitbutton.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/button/splitbuttonview\n */\n\nimport View from '../../view';\nimport ButtonView from '../../button/buttonview';\nimport type ViewCollection from '../../viewcollection';\nimport type Button from '../../button/button';\nimport type DropdownButton from './dropdownbutton';\n\nimport {\n\tKeystrokeHandler,\n\tFocusTracker,\n\ttype Locale\n} from '@ckeditor/ckeditor5-utils';\n\nimport dropdownArrowIcon from '../../../theme/icons/dropdown-arrow.svg';\n\nimport '../../../theme/components/dropdown/splitbutton.css';\n\n/**\n * The split button view class.\n *\n * ```ts\n * const view = new SplitButtonView();\n *\n * view.set( {\n * \tlabel: 'A button',\n * \tkeystroke: 'Ctrl+B',\n * \ttooltip: true\n * } );\n *\n * view.render();\n *\n * document.body.append( view.element );\n * ```\n *\n * Also see the {@link module:ui/dropdown/utils~createDropdown `createDropdown()` util}.\n */\nexport default class SplitButtonView extends View<HTMLDivElement> implements DropdownButton {\n\t/**\n\t * Collection of the child views inside of the split button {@link #element}.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * A main button of split button.\n\t */\n\tpublic readonly actionView: ButtonView;\n\n\t/**\n\t * A secondary button of split button that opens dropdown.\n\t */\n\tpublic readonly arrowView: ButtonView;\n\n\t/**\n\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}. It manages\n\t * keystrokes of the split button:\n\t *\n\t * * <kbd>▶</kbd> moves focus to arrow view when action view is focused,\n\t * * <kbd>◀</kbd> moves focus to action view when arrow view is focused.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * Tracks information about DOM focus in the dropdown.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public label: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public keystroke: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public tooltip: Button[ 'tooltip' ];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public tooltipPosition: Button[ 'tooltipPosition' ];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public type: Button[ 'type' ];\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isOn: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isVisible: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public isToggleable: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public withText: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public withKeystroke: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public icon: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public tabindex: number;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public class: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public labelStyle: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t// Implement the Button interface.\n\t\tthis.set( 'class', undefined );\n\t\tthis.set( 'labelStyle', undefined );\n\t\tthis.set( 'icon', undefined );\n\t\tthis.set( 'isEnabled', true );\n\t\tthis.set( 'isOn', false );\n\t\tthis.set( 'isToggleable', false );\n\t\tthis.set( 'isVisible', true );\n\t\tthis.set( 'keystroke', undefined );\n\t\tthis.set( 'withKeystroke', false );\n\t\tthis.set( 'label', undefined );\n\t\tthis.set( 'tabindex', -1 );\n\t\tthis.set( 'tooltip', false );\n\t\tthis.set( 'tooltipPosition', 's' );\n\t\tthis.set( 'type', 'button' );\n\t\tthis.set( 'withText', false );\n\n\t\tthis.children = this.createCollection();\n\t\tthis.actionView = this._createActionView();\n\t\tthis.arrowView = this._createArrowView();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-splitbutton',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-hidden', value => !value ),\n\t\t\t\t\tthis.arrowView.bindTemplate.if( 'isOn', 'ck-splitbutton_open' )\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.children.add( this.actionView );\n\t\tthis.children.add( this.arrowView );\n\n\t\tthis.focusTracker.add( this.actionView.element! );\n\t\tthis.focusTracker.add( this.arrowView.element! );\n\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\t// Overrides toolbar focus cycling behavior.\n\t\tthis.keystrokes.set( 'arrowright', ( evt, cancel ) => {\n\t\t\tif ( this.focusTracker.focusedElement === this.actionView.element ) {\n\t\t\t\tthis.arrowView.focus();\n\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Overrides toolbar focus cycling behavior.\n\t\tthis.keystrokes.set( 'arrowleft', ( evt, cancel ) => {\n\t\t\tif ( this.focusTracker.focusedElement === this.arrowView.element ) {\n\t\t\t\tthis.actionView.focus();\n\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the {@link module:ui/button/buttonview~ButtonView#element} of the action part of split button.\n\t */\n\tpublic focus(): void {\n\t\tthis.actionView.focus();\n\t}\n\n\t/**\n\t * Creates a {@link module:ui/button/buttonview~ButtonView} instance as {@link #actionView} and binds it with main split button\n\t * attributes.\n\t */\n\tprivate _createActionView() {\n\t\tconst actionView = new ButtonView();\n\n\t\tactionView.bind(\n\t\t\t'icon',\n\t\t\t'isEnabled',\n\t\t\t'isOn',\n\t\t\t'isToggleable',\n\t\t\t'keystroke',\n\t\t\t'label',\n\t\t\t'tabindex',\n\t\t\t'tooltip',\n\t\t\t'tooltipPosition',\n\t\t\t'type',\n\t\t\t'withText'\n\t\t).to( this );\n\n\t\tactionView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-splitbutton__action'\n\t\t\t}\n\t\t} );\n\n\t\tactionView.delegate( 'execute' ).to( this );\n\n\t\treturn actionView;\n\t}\n\n\t/**\n\t * Creates a {@link module:ui/button/buttonview~ButtonView} instance as {@link #arrowView} and binds it with main split button\n\t * attributes.\n\t */\n\tprivate _createArrowView() {\n\t\tconst arrowView = new ButtonView();\n\t\tconst bind = arrowView.bindTemplate;\n\n\t\tarrowView.icon = dropdownArrowIcon;\n\n\t\tarrowView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-splitbutton__arrow'\n\t\t\t\t],\n\t\t\t\t'data-cke-tooltip-disabled': bind.to( 'isOn' ),\n\t\t\t\t'aria-haspopup': true,\n\t\t\t\t'aria-expanded': bind.to( 'isOn', value => String( value ) )\n\t\t\t}\n\t\t} );\n\n\t\tarrowView.bind( 'isEnabled' ).to( this );\n\t\tarrowView.bind( 'label' ).to( this );\n\t\tarrowView.bind( 'tooltip' ).to( this );\n\n\t\tarrowView.delegate( 'execute' ).to( this, 'open' );\n\n\t\treturn arrowView;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/focuscycler\n */\n\nimport {\n\tisVisible,\n\ttype ArrayOrItem,\n\ttype FocusTracker,\n\ttype KeystrokeHandler\n} from '@ckeditor/ckeditor5-utils';\n\nimport type View from './view';\nimport type ViewCollection from './viewcollection';\n\n/**\n * A utility class that helps cycling over focusable {@link module:ui/view~View views} in a\n * {@link module:ui/viewcollection~ViewCollection} when the focus is tracked by the\n * {@link module:utils/focustracker~FocusTracker} instance. It helps implementing keyboard\n * navigation in HTML forms, toolbars, lists and the like.\n *\n * To work properly it requires:\n * * a collection of focusable (HTML `tabindex` attribute) views that implement the `focus()` method,\n * * an associated focus tracker to determine which view is focused.\n *\n * A simple cycler setup can look like this:\n *\n * ```ts\n * const focusables = new ViewCollection();\n * const focusTracker = new FocusTracker();\n *\n * // Add focusable views to the focus tracker.\n * focusTracker.add( ... );\n * ```\n *\n * Then, the cycler can be used manually:\n *\n * ```ts\n * const cycler = new FocusCycler( { focusables, focusTracker } );\n *\n * // Will focus the first focusable view in #focusables.\n * cycler.focusFirst();\n *\n * // Will log the next focusable item in #focusables.\n * console.log( cycler.next );\n * ```\n *\n * Alternatively, it can work side by side with the {@link module:utils/keystrokehandler~KeystrokeHandler}:\n *\n * ```ts\n * const keystrokeHandler = new KeystrokeHandler();\n *\n * // Activate the keystroke handler.\n * keystrokeHandler.listenTo( sourceOfEvents );\n *\n * const cycler = new FocusCycler( {\n * \tfocusables, focusTracker, keystrokeHandler,\n * \tactions: {\n * \t\t// When arrowup of arrowleft is detected by the #keystrokeHandler,\n * \t\t// focusPrevious() will be called on the cycler.\n * \t\tfocusPrevious: [ 'arrowup', 'arrowleft' ],\n * \t}\n * } );\n * ```\n *\n * Check out the {@glink framework/deep-dive/ui/focus-tracking \"Deep dive into focus tracking\"} guide to learn more.\n */\nexport default class FocusCycler {\n\t/**\n\t * A {@link module:ui/view~View view} collection that the cycler operates on.\n\t */\n\tpublic readonly focusables: ViewCollection;\n\n\t/**\n\t * A focus tracker instance that the cycler uses to determine the current focus\n\t * state in {@link #focusables}.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}\n\t * which can respond to certain keystrokes and cycle the focus.\n\t */\n\tpublic readonly keystrokeHandler?: KeystrokeHandler;\n\n\t/**\n\t * Actions that the cycler can take when a keystroke is pressed. Requires\n\t * `options.keystrokeHandler` to be passed and working. When an action is\n\t * performed, `preventDefault` and `stopPropagation` will be called on the event\n\t * the keystroke fired in the DOM.\n\t *\n\t * ```ts\n\t * actions: {\n\t * \t// Will call #focusPrevious() when arrowleft or arrowup is pressed.\n\t * \tfocusPrevious: [ 'arrowleft', 'arrowup' ],\n\t *\n\t * \t// Will call #focusNext() when arrowdown is pressed.\n\t * \tfocusNext: 'arrowdown'\n\t * }\n\t * ```\n\t */\n\tpublic readonly actions?: FocusCyclerActions;\n\n\t/**\n\t * Creates an instance of the focus cycler utility.\n\t *\n\t * @param options Configuration options.\n\t */\n\tconstructor( options: {\n\t\tfocusables: ViewCollection;\n\t\tfocusTracker: FocusTracker;\n\t\tkeystrokeHandler?: KeystrokeHandler;\n\t\tactions?: FocusCyclerActions;\n\t} ) {\n\t\tthis.focusables = options.focusables;\n\t\tthis.focusTracker = options.focusTracker;\n\t\tthis.keystrokeHandler = options.keystrokeHandler;\n\t\tthis.actions = options.actions;\n\n\t\tif ( options.actions && options.keystrokeHandler ) {\n\t\t\tfor ( const methodName in options.actions ) {\n\t\t\t\tlet actions = options.actions[ methodName as keyof FocusCyclerActions ]!;\n\n\t\t\t\tif ( typeof actions == 'string' ) {\n\t\t\t\t\tactions = [ actions ];\n\t\t\t\t}\n\n\t\t\t\tfor ( const keystroke of actions ) {\n\t\t\t\t\toptions.keystrokeHandler.set( keystroke, ( data, cancel ) => {\n\t\t\t\t\t\tthis[ methodName as keyof FocusCyclerActions ]();\n\t\t\t\t\t\tcancel();\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Returns the first focusable view in {@link #focusables}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic get first(): FocusableView | null {\n\t\treturn ( this.focusables.find( isFocusable ) || null ) as FocusableView | null;\n\t}\n\n\t/**\n\t * Returns the last focusable view in {@link #focusables}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic get last(): FocusableView | null {\n\t\treturn ( this.focusables.filter( isFocusable ).slice( -1 )[ 0 ] || null ) as FocusableView | null;\n\t}\n\n\t/**\n\t * Returns the next focusable view in {@link #focusables} based on {@link #current}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic get next(): FocusableView | null {\n\t\treturn this._getFocusableItem( 1 );\n\t}\n\n\t/**\n\t * Returns the previous focusable view in {@link #focusables} based on {@link #current}.\n\t * Returns `null` if there is none.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic get previous(): FocusableView | null {\n\t\treturn this._getFocusableItem( -1 );\n\t}\n\n\t/**\n\t * An index of the view in the {@link #focusables} which is focused according\n\t * to {@link #focusTracker}. Returns `null` when there is no such view.\n\t */\n\tpublic get current(): number | null {\n\t\tlet index: number | null = null;\n\n\t\t// There's no focused view in the focusables.\n\t\tif ( this.focusTracker.focusedElement === null ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tthis.focusables.find( ( view, viewIndex ) => {\n\t\t\tconst focused = view.element === this.focusTracker.focusedElement;\n\n\t\t\tif ( focused ) {\n\t\t\t\tindex = viewIndex;\n\t\t\t}\n\n\t\t\treturn focused;\n\t\t} );\n\n\t\treturn index;\n\t}\n\n\t/**\n\t * Focuses the {@link #first} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusFirst(): void {\n\t\tthis._focus( this.first );\n\t}\n\n\t/**\n\t * Focuses the {@link #last} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusLast(): void {\n\t\tthis._focus( this.last );\n\t}\n\n\t/**\n\t * Focuses the {@link #next} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusNext(): void {\n\t\tthis._focus( this.next );\n\t}\n\n\t/**\n\t * Focuses the {@link #previous} item in {@link #focusables}.\n\t *\n\t * **Note**: Hidden views (e.g. with `display: none`) are ignored.\n\t */\n\tpublic focusPrevious(): void {\n\t\tthis._focus( this.previous );\n\t}\n\n\t/**\n\t * Focuses the given view if it exists.\n\t */\n\tprivate _focus( view: FocusableView | null ) {\n\t\tif ( view ) {\n\t\t\tview.focus();\n\t\t}\n\t}\n\n\t/**\n\t * Returns the next or previous focusable view in {@link #focusables} with respect\n\t * to {@link #current}.\n\t *\n\t * @param step Either `1` for checking forward from {@link #current} or `-1` for checking backwards.\n\t */\n\tprivate _getFocusableItem( step: 1 | -1 ): FocusableView | null {\n\t\t// Cache for speed.\n\t\tconst current = this.current;\n\t\tconst collectionLength = this.focusables.length;\n\n\t\tif ( !collectionLength ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// Start from the beginning if no view is focused.\n\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/206\n\t\tif ( current === null ) {\n\t\t\treturn this[ step === 1 ? 'first' : 'last' ];\n\t\t}\n\n\t\t// Cycle in both directions.\n\t\tlet index = ( current + collectionLength + step ) % collectionLength;\n\n\t\tdo {\n\t\t\tconst view = this.focusables.get( index )!;\n\n\t\t\tif ( isFocusable( view ) ) {\n\t\t\t\treturn view as FocusableView;\n\t\t\t}\n\n\t\t\t// Cycle in both directions.\n\t\t\tindex = ( index + collectionLength + step ) % collectionLength;\n\t\t} while ( index !== current );\n\n\t\treturn null;\n\t}\n}\n\nexport type FocusableView = View & { focus(): void };\n\nexport interface FocusCyclerActions {\n\tfocusFirst?: ArrayOrItem<string>;\n\tfocusLast?: ArrayOrItem<string>;\n\tfocusNext?: ArrayOrItem<string>;\n\tfocusPrevious?: ArrayOrItem<string>;\n}\n\n/**\n * Checks whether a view is focusable.\n *\n * @param view A view to be checked.\n */\nfunction isFocusable( view: View & { focus?: unknown } ) {\n\treturn !!( view.focus && isVisible( view.element ) );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/toolbarseparatorview\n */\n\nimport View from '../view';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The toolbar separator view class.\n */\nexport default class ToolbarSeparatorView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-toolbar__separator'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/toolbarlinebreakview\n */\n\nimport View from '../view';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The toolbar line break view class.\n */\nexport default class ToolbarLineBreakView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-toolbar__line-break'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { ToolbarConfig, ToolbarConfigItem } from '@ckeditor/ckeditor5-core';\n\n/**\n * @module ui/toolbar/normalizetoolbarconfig\n */\n\n/**\n * Normalizes the toolbar configuration (`config.toolbar`), which:\n *\n * * may be defined as an `Array`:\n *\n * ```\n * toolbar: [ 'heading', 'bold', 'italic', 'link', ... ]\n * ```\n *\n * * or an `Object`:\n *\n * ```\n * toolbar: {\n * \titems: [ 'heading', 'bold', 'italic', 'link', ... ],\n * \tremoveItems: [ 'bold' ],\n * \t...\n * }\n * ```\n *\n * * or may not be defined at all (`undefined`)\n *\n * and returns it in the object form.\n *\n * @param config The value of `config.toolbar`.\n * @returns A normalized toolbar config object.\n */\nexport default function normalizeToolbarConfig(\n\tconfig: ToolbarConfig | undefined\n): {\n\titems: Array<ToolbarConfigItem>;\n\tremoveItems: Array<string>;\n\tshouldNotGroupWhenFull?: boolean;\n} {\n\tif ( Array.isArray( config ) ) {\n\t\treturn {\n\t\t\titems: config,\n\t\t\tremoveItems: []\n\t\t};\n\t}\n\n\tif ( !config ) {\n\t\treturn {\n\t\t\titems: [],\n\t\t\tremoveItems: []\n\t\t};\n\t}\n\n\treturn Object.assign( {\n\t\titems: [],\n\t\tremoveItems: []\n\t}, config );\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./toolbar.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/toolbarview\n */\n\nimport View from '../view';\nimport FocusCycler from '../focuscycler';\nimport ToolbarSeparatorView from './toolbarseparatorview';\nimport ToolbarLineBreakView from './toolbarlinebreakview';\nimport preventDefault from '../bindings/preventdefault';\nimport { createDropdown, addToolbarToDropdown } from '../dropdown/utils';\nimport normalizeToolbarConfig from './normalizetoolbarconfig';\n\nimport type ComponentFactory from '../componentfactory';\nimport type ViewCollection from '../viewcollection';\nimport type DropdownView from '../dropdown/dropdownview';\nimport type DropdownPanelFocusable from '../dropdown/dropdownpanelfocusable';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\tRect,\n\tResizeObserver,\n\tglobal,\n\tisVisible,\n\tlogWarning,\n\ttype CollectionAddEvent,\n\ttype CollectionChangeEvent,\n\ttype CollectionRemoveEvent,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport {\n\ticons,\n\ttype ToolbarConfig,\n\ttype ToolbarConfigItem\n} from '@ckeditor/ckeditor5-core';\n\nimport { isObject } from 'lodash-es';\n\nimport '../../theme/components/toolbar/toolbar.css';\n\nconst { threeVerticalDots } = icons;\n\nconst NESTED_TOOLBAR_ICONS: Record<string, string | undefined> = {\n\talignLeft: icons.alignLeft,\n\tbold: icons.bold,\n\timportExport: icons.importExport,\n\tparagraph: icons.paragraph,\n\tplus: icons.plus,\n\ttext: icons.text,\n\tthreeVerticalDots: icons.threeVerticalDots\n};\n\n/**\n * The toolbar view class.\n */\nexport default class ToolbarView extends View implements DropdownPanelFocusable {\n\t/**\n\t * A reference to the options object passed to the constructor.\n\t */\n\tpublic readonly options: ToolbarOptions;\n\n\t/**\n\t * A collection of toolbar items (buttons, dropdowns, etc.).\n\t */\n\tpublic readonly items: ViewCollection;\n\n\t/**\n\t * Tracks information about the DOM focus in the toolbar.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}\n\t * to handle keyboard navigation in the toolbar.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * A (child) view containing {@link #items toolbar items}.\n\t */\n\tpublic readonly itemsView: ItemsView;\n\n\t/**\n\t * A top–level collection aggregating building blocks of the toolbar.\n\t *\n\t *\t┌───────────────── ToolbarView ─────────────────┐\n\t *\t| ┌──────────────── #children ────────────────┐ |\n\t *\t| |   ┌──────────── #itemsView ───────────┐   | |\n\t *\t| |   | [ item1 ] [ item2 ] ... [ itemN ] |   | |\n\t *\t| |   └──────────────────────────────────-┘   | |\n\t *\t| └───────────────────────────────────────────┘ |\n\t *\t└───────────────────────────────────────────────┘\n\t *\n\t * By default, it contains the {@link #itemsView} but it can be extended with additional\n\t * UI elements when necessary.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * A collection of {@link #items} that take part in the focus cycling\n\t * (i.e. navigation using the keyboard). Usually, it contains a subset of {@link #items} with\n\t * some optional UI elements that also belong to the toolbar and should be focusable\n\t * by the user.\n\t */\n\tpublic readonly focusables: ViewCollection;\n\n\tdeclare public locale: Locale;\n\n\t/**\n\t * Label used by assistive technologies to describe this toolbar element.\n\t *\n\t * @observable\n\t * @default 'Editor toolbar'\n\t */\n\tdeclare public ariaLabel: string;\n\n\t/**\n\t * The maximum width of the toolbar element.\n\t *\n\t * **Note**: When set to a specific value (e.g. `'200px'`), the value will affect the behavior of the\n\t * {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull}\n\t * option by changing the number of {@link #items} that will be displayed in the toolbar at a time.\n\t *\n\t * @observable\n\t * @default 'auto'\n\t */\n\tdeclare public maxWidth: string;\n\n\t/**\n\t * An additional CSS class added to the {@link #element}.\n\t *\n\t * @observable\n\t * @member {String} #class\n\t */\n\tdeclare public class: string | undefined;\n\n\t/**\n\t * When set true, makes the toolbar look compact with {@link #element}.\n\t *\n\t * @observable\n\t * @default false\n\t */\n\tdeclare public isCompact: boolean;\n\n\t/**\n\t * Controls the orientation of toolbar items. Only available when\n\t * {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull dynamic items grouping}\n\t * is **disabled**.\n\t *\n\t * @observable\n\t */\n\tdeclare public isVertical: boolean;\n\n\t/**\n\t * Helps cycling over {@link #focusables focusable items} in the toolbar.\n\t */\n\tprivate readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * An instance of the active toolbar behavior that shapes its look and functionality.\n\t *\n\t * See {@link module:ui/toolbar/toolbarview~ToolbarBehavior} to learn more.\n\t */\n\tprivate readonly _behavior: ToolbarBehavior;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/toolbar/toolbarview~ToolbarView} class.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param locale The localization services instance.\n\t * @param options Configuration options of the toolbar.\n\t */\n\tconstructor( locale: Locale, options?: ToolbarOptions ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\t\tconst t = this.t!;\n\n\t\tthis.options = options || {};\n\n\t\tthis.set( 'ariaLabel', t( 'Editor toolbar' ) );\n\t\tthis.set( 'maxWidth', 'auto' );\n\n\t\tthis.items = this.createCollection();\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\tthis.set( 'class', undefined );\n\t\tthis.set( 'isCompact', false );\n\n\t\tthis.itemsView = new ItemsView( locale );\n\t\tthis.children = this.createCollection();\n\t\tthis.children.add( this.itemsView );\n\t\tthis.focusables = this.createCollection();\n\n\t\tconst isRtl = locale.uiLanguageDirection === 'rtl';\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this.focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate toolbar items backwards using the arrow[left,up] keys.\n\t\t\t\tfocusPrevious: [ isRtl ? 'arrowright' : 'arrowleft', 'arrowup' ],\n\n\t\t\t\t// Navigate toolbar items forwards using the arrow[right,down] keys.\n\t\t\t\tfocusNext: [ isRtl ? 'arrowleft' : 'arrowright', 'arrowdown' ]\n\t\t\t}\n\t\t} );\n\n\t\tconst classes = [\n\t\t\t'ck',\n\t\t\t'ck-toolbar',\n\t\t\tbind.to( 'class' ),\n\t\t\tbind.if( 'isCompact', 'ck-toolbar_compact' )\n\t\t];\n\n\t\tif ( this.options.shouldGroupWhenFull && this.options.isFloating ) {\n\t\t\tclasses.push( 'ck-toolbar_floating' );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: classes,\n\t\t\t\trole: 'toolbar',\n\t\t\t\t'aria-label': bind.to( 'ariaLabel' ),\n\t\t\t\tstyle: {\n\t\t\t\t\tmaxWidth: bind.to( 'maxWidth' )\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tchildren: this.children,\n\n\t\t\ton: {\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/206\n\t\t\t\tmousedown: preventDefault( this )\n\t\t\t}\n\t\t} );\n\n\t\tthis._behavior = this.options.shouldGroupWhenFull ? new DynamicGrouping( this ) : new StaticLayout( this );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Children added before rendering should be known to the #focusTracker.\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t}\n\n\t\tthis.items.on<CollectionAddEvent<View>>( 'add', ( evt, item ) => {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t} );\n\n\t\tthis.items.on<CollectionRemoveEvent<View>>( 'remove', ( evt, item ) => {\n\t\t\tthis.focusTracker.remove( item.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\tthis._behavior.render( this );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tthis._behavior.destroy();\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\n\t\treturn super.destroy();\n\t}\n\n\t/**\n\t * Focuses the first focusable in {@link #focusables}.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Focuses the last focusable in {@link #focusables}.\n\t */\n\tpublic focusLast(): void {\n\t\tthis._focusCycler.focusLast();\n\t}\n\n\t/**\n\t * A utility that expands the plain toolbar configuration into\n\t * {@link module:ui/toolbar/toolbarview~ToolbarView#items} using a given component factory.\n\t *\n\t * @param itemsOrConfig The toolbar items or the entire toolbar configuration object.\n\t * @param factory A factory producing toolbar items.\n\t * @param removeItems An array of items names to be removed from the configuration. When present, applies\n\t * to this toolbar and all nested ones as well.\n\t */\n\tpublic fillFromConfig(\n\t\titemsOrConfig: ToolbarConfig | undefined,\n\t\tfactory: ComponentFactory,\n\t\tremoveItems?: Array<string>\n\t): void {\n\t\tthis.items.addMany( this._buildItemsFromConfig( itemsOrConfig, factory, removeItems ) );\n\t}\n\n\t/**\n\t * A utility that expands the plain toolbar configuration into a list of view items using a given component factory.\n\t *\n\t * @param itemsOrConfig The toolbar items or the entire toolbar configuration object.\n\t * @param factory A factory producing toolbar items.\n\t * @param removeItems An array of items names to be removed from the configuration. When present, applies\n\t * to this toolbar and all nested ones as well.\n\t */\n\tprivate _buildItemsFromConfig(\n\t\titemsOrConfig: ToolbarConfig | undefined,\n\t\tfactory: ComponentFactory,\n\t\tremoveItems?: Array<string>\n\t): Array<View> {\n\t\tconst config = normalizeToolbarConfig( itemsOrConfig );\n\t\tconst normalizedRemoveItems = removeItems || config.removeItems;\n\t\tconst itemsToAdd = this._cleanItemsConfiguration( config.items, factory, normalizedRemoveItems )\n\t\t\t.map( item => {\n\t\t\t\tif ( isObject( item ) ) {\n\t\t\t\t\treturn this._createNestedToolbarDropdown( item, factory, normalizedRemoveItems );\n\t\t\t\t} else if ( item === '|' ) {\n\t\t\t\t\treturn new ToolbarSeparatorView();\n\t\t\t\t} else if ( item === '-' ) {\n\t\t\t\t\treturn new ToolbarLineBreakView();\n\t\t\t\t}\n\n\t\t\t\treturn factory.create( item );\n\t\t\t} )\n\t\t\t.filter( ( item ): item is View => !!item );\n\n\t\treturn itemsToAdd;\n\t}\n\n\t/**\n\t * Cleans up the {@link module:ui/toolbar/toolbarview~ToolbarView#items} of the toolbar by removing unwanted items and\n\t * duplicated (obsolete) separators or line breaks.\n\t *\n\t * @param items The toolbar items configuration.\n\t * @param factory A factory producing toolbar items.\n\t * @param removeItems An array of items names to be removed from the configuration.\n\t * @returns Items after the clean-up.\n\t */\n\tprivate _cleanItemsConfiguration(\n\t\titems: Array<ToolbarConfigItem>,\n\t\tfactory: ComponentFactory,\n\t\tremoveItems: Array<string>\n\t) {\n\t\tconst filteredItems = items\n\t\t\t.filter( ( item, idx, items ) => {\n\t\t\t\tif ( item === '|' ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\t// Items listed in `config.removeItems` should not be added to the toolbar.\n\t\t\t\tif ( removeItems.indexOf( item as any ) !== -1 ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\tif ( item === '-' ) {\n\t\t\t\t\t// The toolbar line breaks must not be rendered when toolbar grouping is enabled.\n\t\t\t\t\t// (https://github.com/ckeditor/ckeditor5/issues/8582)\n\t\t\t\t\tif ( this.options.shouldGroupWhenFull ) {\n\t\t\t\t\t\t/**\n\t\t\t\t\t\t * The toolbar multiline breaks (`-` items) only work when the automatic button grouping\n\t\t\t\t\t\t * is disabled in the toolbar configuration.\n\t\t\t\t\t\t * To do this, set the `shouldNotGroupWhenFull` option to `true` in the editor configuration:\n\t\t\t\t\t\t *\n\t\t\t\t\t\t * ```ts\n\t\t\t\t\t\t * const config = {\n\t\t\t\t\t\t * \ttoolbar: {\n\t\t\t\t\t\t * \t\titems: [ ... ],\n\t\t\t\t\t\t * \t\tshouldNotGroupWhenFull: true\n\t\t\t\t\t\t * \t}\n\t\t\t\t\t\t * }\n\t\t\t\t\t\t * ```\n\t\t\t\t\t\t *\n\t\t\t\t\t\t * Learn more about {@link module:core/editor/editorconfig~EditorConfig#toolbar toolbar configuration}.\n\t\t\t\t\t\t *\n\t\t\t\t\t\t * @error toolbarview-line-break-ignored-when-grouping-items\n\t\t\t\t\t\t */\n\t\t\t\t\t\tlogWarning( 'toolbarview-line-break-ignored-when-grouping-items', items );\n\n\t\t\t\t\t\treturn false;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\t// For the items that cannot be instantiated we are sending warning message. We also filter them out.\n\t\t\t\tif ( !isObject( item ) && !factory.has( item ) ) {\n\t\t\t\t\t/**\n\t\t\t\t\t * There was a problem processing the configuration of the toolbar. The item with the given\n\t\t\t\t\t * name does not exist so it was omitted when rendering the toolbar.\n\t\t\t\t\t *\n\t\t\t\t\t * This warning usually shows up when the {@link module:core/plugin~Plugin} which is supposed\n\t\t\t\t\t * to provide a toolbar item has not been loaded or there is a typo in the configuration.\n\t\t\t\t\t *\n\t\t\t\t\t * Make sure the plugin responsible for this toolbar item is loaded and the toolbar configuration\n\t\t\t\t\t * is correct, e.g. {@link module:basic-styles/bold~Bold} is loaded for the `'bold'` toolbar item.\n\t\t\t\t\t *\n\t\t\t\t\t * You can use the following snippet to retrieve all available toolbar items:\n\t\t\t\t\t *\n\t\t\t\t\t * ```ts\n\t\t\t\t\t * Array.from( editor.ui.componentFactory.names() );\n\t\t\t\t\t * ```\n\t\t\t\t\t *\n\t\t\t\t\t * @error toolbarview-item-unavailable\n\t\t\t\t\t * @param item The name of the component or nested toolbar definition.\n\t\t\t\t\t */\n\t\t\t\t\tlogWarning( 'toolbarview-item-unavailable', { item } );\n\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\t\t\t} );\n\n\t\treturn this._cleanSeparatorsAndLineBreaks( filteredItems );\n\t}\n\n\t/**\n\t * Remove leading, trailing, and duplicated separators (`-` and `|`).\n\t *\n\t * @returns Toolbar items after the separator and line break clean-up.\n\t */\n\tprivate _cleanSeparatorsAndLineBreaks( items: Array<ToolbarConfigItem> ) {\n\t\tconst nonSeparatorPredicate = ( item: ToolbarConfigItem ) => ( item !== '-' && item !== '|' );\n\t\tconst count = items.length;\n\n\t\t// Find an index of the first item that is not a separator.\n\t\tconst firstCommandItemIndex = items.findIndex( nonSeparatorPredicate );\n\n\t\t// Items include separators only. There is no point in displaying them.\n\t\tif ( firstCommandItemIndex === -1 ) {\n\t\t\treturn [];\n\t\t}\n\n\t\t// Search from the end of the list, then convert found index back to the original direction.\n\t\tconst lastCommandItemIndex = count - items\n\t\t\t.slice()\n\t\t\t.reverse()\n\t\t\t.findIndex( nonSeparatorPredicate );\n\n\t\treturn items\n\t\t\t// Return items without the leading and trailing separators.\n\t\t\t.slice( firstCommandItemIndex, lastCommandItemIndex )\n\t\t\t// Remove duplicated separators.\n\t\t\t.filter( ( name, idx, items ) => {\n\t\t\t\t// Filter only separators.\n\t\t\t\tif ( nonSeparatorPredicate( name ) ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t\tconst isDuplicated = idx > 0 && items[ idx - 1 ] === name;\n\n\t\t\t\treturn !isDuplicated;\n\t\t\t} );\n\t}\n\n\t/**\n\t * Creates a user-defined dropdown containing a toolbar with items.\n\t *\n\t * @param definition A definition of the nested toolbar dropdown.\n\t * @param definition.label A label of the dropdown.\n\t * @param definition.icon An icon of the drop-down. One of 'bold', 'plus', 'text', 'importExport', 'alignLeft',\n\t * 'paragraph' or an SVG string. When `false` is passed, no icon will be used.\n\t * @param definition.withText When set `true`, the label of the dropdown will be visible. See\n\t * {@link module:ui/button/buttonview~ButtonView#withText} to learn more.\n\t * @param definition.tooltip A tooltip of the dropdown button. See\n\t * {@link module:ui/button/buttonview~ButtonView#tooltip} to learn more. Defaults to `true`.\n\t * @param componentFactory Component factory used to create items\n\t * of the nested toolbar.\n\t */\n\tprivate _createNestedToolbarDropdown(\n\t\tdefinition: Exclude<ToolbarConfigItem, string>,\n\t\tcomponentFactory: ComponentFactory,\n\t\tremoveItems: Array<string>\n\t) {\n\t\tlet { label, icon, items, tooltip = true, withText = false } = definition;\n\n\t\titems = this._cleanItemsConfiguration( items, componentFactory, removeItems );\n\n\t\t// There is no point in rendering a dropdown without items.\n\t\tif ( !items.length ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst locale = this.locale;\n\t\tconst dropdownView = createDropdown( locale );\n\n\t\tif ( !label ) {\n\t\t\t/**\n\t\t\t * A dropdown definition in the toolbar configuration is missing a text label.\n\t\t\t *\n\t\t\t * Without a label, the dropdown becomes inaccessible to users relying on assistive technologies.\n\t\t\t * Make sure the `label` property is set in your drop-down configuration:\n\t\t\t *\n\t\t\t * ```json\n \t\t\t * {\n \t\t\t * \tlabel: 'A human-readable label',\n\t\t\t * \ticon: '...',\n\t\t\t * \titems: [ ... ]\n \t\t\t * },\n\t\t\t * ```\n\t\t\t *\n\t\t\t * Learn more about {@link module:core/editor/editorconfig~EditorConfig#toolbar toolbar configuration}.\n\t\t\t *\n\t\t\t * @error toolbarview-nested-toolbar-dropdown-missing-label\n\t\t\t */\n\t\t\tlogWarning( 'toolbarview-nested-toolbar-dropdown-missing-label', definition );\n\t\t}\n\n\t\tdropdownView.class = 'ck-toolbar__nested-toolbar-dropdown';\n\t\tdropdownView.buttonView.set( {\n\t\t\tlabel,\n\t\t\ttooltip,\n\t\t\twithText: !!withText\n\t\t} );\n\n\t\t// Allow disabling icon by passing false.\n\t\tif ( icon !== false ) {\n\t\t\t// A pre-defined icon picked by name, SVG string, a fallback (default) icon.\n\t\t\tdropdownView.buttonView.icon = NESTED_TOOLBAR_ICONS[ icon! ] || icon || threeVerticalDots;\n\t\t}\n\t\t// If the icon is disabled, display the label automatically.\n\t\telse {\n\t\t\tdropdownView.buttonView.withText = true;\n\t\t}\n\n\t\taddToolbarToDropdown( dropdownView, () => (\n\t\t\tdropdownView.toolbarView!._buildItemsFromConfig( items, componentFactory, removeItems )\n\t\t) );\n\n\t\treturn dropdownView;\n\t}\n}\n\n/**\n * Fired when some toolbar {@link ~ToolbarView#items} were grouped or ungrouped as a result of some change\n * in the toolbar geometry.\n *\n * **Note**: This event is always fired **once** regardless of the number of items that were be\n * grouped or ungrouped at a time.\n *\n * **Note**: This event is fired only if the items grouping functionality was enabled in\n * the first place (see {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull}).\n *\n * @eventName ~ToolbarView#groupedItemsUpdate\n */\nexport type ToolbarViewGroupedItemsUpdateEvent = {\n\tname: 'groupedItemsUpdate';\n\targs: [];\n};\n\n/**\n * An inner block of the {@link module:ui/toolbar/toolbarview~ToolbarView} hosting its\n * {@link module:ui/toolbar/toolbarview~ToolbarView#items}.\n */\nclass ItemsView extends View {\n\t/**\n\t * A collection of items (buttons, dropdowns, etc.).\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-toolbar__items'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n}\n\n/**\n * A toolbar behavior that makes it static and unresponsive to the changes of the environment.\n * At the same time, it also makes it possible to display a toolbar with a vertical layout\n * using the {@link module:ui/toolbar/toolbarview~ToolbarView#isVertical} property.\n */\nclass StaticLayout implements ToolbarBehavior {\n\t/**\n\t * Creates an instance of the {@link module:ui/toolbar/toolbarview~StaticLayout} toolbar\n\t * behavior.\n\t *\n\t * @param view An instance of the toolbar that this behavior is added to.\n\t */\n\tconstructor( view: ToolbarView ) {\n\t\tconst bind = view.bindTemplate;\n\n\t\t// Static toolbar can be vertical when needed.\n\t\tview.set( 'isVertical', false );\n\n\t\t// 1:1 pass–through binding, all ToolbarView#items are visible.\n\t\tview.itemsView.children.bindTo( view.items ).using( item => item );\n\n\t\t// 1:1 pass–through binding, all ToolbarView#items are focusable.\n\t\tview.focusables.bindTo( view.items ).using( item => item );\n\n\t\tview.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t// When vertical, the toolbar has an additional CSS class.\n\t\t\t\t\tbind.if( 'isVertical', 'ck-toolbar_vertical' )\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic render(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic destroy(): void {}\n}\n\n/**\n * A toolbar behavior that makes the items respond to changes in the geometry.\n *\n * In a nutshell, it groups {@link module:ui/toolbar/toolbarview~ToolbarView#items}\n * that do not fit visually into a single row of the toolbar (due to limited space).\n * Items that do not fit are aggregated in a dropdown displayed at the end of the toolbar.\n *\n * ```\n *\t┌──────────────────────────────────────── ToolbarView ──────────────────────────────────────────┐\n *\t| ┌─────────────────────────────────────── #children ─────────────────────────────────────────┐ |\n *\t| |   ┌─────── #itemsView ────────┐ ┌──────────────────────┐ ┌── #groupedItemsDropdown ───┐   | |\n *\t| |   |       #ungroupedItems     | | ToolbarSeparatorView | |        #groupedItems       |   | |\n *\t| |   └──────────────────────────-┘ └──────────────────────┘ └────────────────────────────┘   | |\n *\t| |                                  \\---------- only when toolbar items overflow -------/    | |\n *\t| └───────────────────────────────────────────────────────────────────────────────────────────┘ |\n *\t└───────────────────────────────────────────────────────────────────────────────────────────────┘\n * ```\n */\nclass DynamicGrouping implements ToolbarBehavior {\n\t/**\n\t * A toolbar view this behavior belongs to.\n\t */\n\tpublic readonly view: ToolbarView;\n\n\t/**\n\t * A collection of toolbar children.\n\t */\n\tpublic readonly viewChildren: ViewCollection;\n\n\t/**\n\t * A collection of focusable toolbar elements.\n\t */\n\tpublic readonly viewFocusables: ViewCollection;\n\n\t/**\n\t * A view containing toolbar items.\n\t */\n\tpublic readonly viewItemsView: ItemsView;\n\n\t/**\n\t * Toolbar focus tracker.\n\t */\n\tpublic readonly viewFocusTracker: FocusTracker;\n\n\t/**\n\t * Toolbar locale.\n\t */\n\tpublic readonly viewLocale: Locale;\n\n\t/**\n\t * A subset of toolbar {@link module:ui/toolbar/toolbarview~ToolbarView#items}.\n\t * Aggregates items that fit into a single row of the toolbar and were not {@link #groupedItems grouped}\n\t * into a {@link #groupedItemsDropdown dropdown}. Items of this collection are displayed in the\n\t * {@link module:ui/toolbar/toolbarview~ToolbarView#itemsView}.\n\t *\n\t * When none of the {@link module:ui/toolbar/toolbarview~ToolbarView#items} were grouped, it\n\t * matches the {@link module:ui/toolbar/toolbarview~ToolbarView#items} collection in size and order.\n\t */\n\tpublic readonly ungroupedItems: ViewCollection;\n\n\t/**\n\t * A subset of toolbar {@link module:ui/toolbar/toolbarview~ToolbarView#items}.\n\t * A collection of the toolbar items that do not fit into a single row of the toolbar.\n\t * Grouped items are displayed in a dedicated {@link #groupedItemsDropdown dropdown}.\n\t *\n\t * When none of the {@link module:ui/toolbar/toolbarview~ToolbarView#items} were grouped,\n\t * this collection is empty.\n\t */\n\tpublic readonly groupedItems: ViewCollection;\n\n\t/**\n\t * The dropdown that aggregates {@link #groupedItems grouped items} that do not fit into a single\n\t * row of the toolbar. It is displayed on demand as the last of\n\t * {@link module:ui/toolbar/toolbarview~ToolbarView#children toolbar children} and offers another\n\t * (nested) toolbar which displays items that would normally overflow.\n\t */\n\tpublic readonly groupedItemsDropdown: DropdownView;\n\n\t/**\n\t * An instance of the resize observer that helps dynamically determine the geometry of the toolbar\n\t * and manage items that do not fit into a single row.\n\t *\n\t * **Note:** Created in {@link #_enableGroupingOnResize}.\n\t *\n\t * @readonly\n\t */\n\tpublic resizeObserver: ResizeObserver | null = null;\n\n\t/**\n\t * A cached value of the horizontal padding style used by {@link #_updateGrouping}\n\t * to manage the {@link module:ui/toolbar/toolbarview~ToolbarView#items} that do not fit into\n\t * a single toolbar line. This value can be reused between updates because it is unlikely that\n\t * the padding will change and re–using `Window.getComputedStyle()` is expensive.\n\t *\n\t * @readonly\n\t */\n\tpublic cachedPadding: number | null = null;\n\n\t/**\n\t * A flag indicating that an items grouping update has been queued (e.g. due to the toolbar being visible)\n\t * and should be executed immediately the next time the toolbar shows up.\n\t *\n\t * @readonly\n\t */\n\tpublic shouldUpdateGroupingOnNextResize: boolean = false;\n\n\t/**\n\t * Toolbar element.\n\t *\n\t * @readonly\n\t */\n\tpublic viewElement: HTMLElement | null | undefined;\n\n\t/**\n\t * Creates an instance of the {@link module:ui/toolbar/toolbarview~DynamicGrouping} toolbar\n\t * behavior.\n\t *\n\t * @param view An instance of the toolbar that this behavior is added to.\n\t */\n\tconstructor( view: ToolbarView ) {\n\t\tthis.view = view;\n\n\t\tthis.viewChildren = view.children;\n\t\tthis.viewFocusables = view.focusables;\n\t\tthis.viewItemsView = view.itemsView;\n\t\tthis.viewFocusTracker = view.focusTracker;\n\t\tthis.viewLocale = view.locale;\n\n\t\tthis.ungroupedItems = view.createCollection();\n\t\tthis.groupedItems = view.createCollection();\n\t\tthis.groupedItemsDropdown = this._createGroupedItemsDropdown();\n\n\t\t// Only those items that were not grouped are visible to the user.\n\t\tview.itemsView.children.bindTo( this.ungroupedItems ).using( item => item );\n\n\t\t// Make sure all #items visible in the main space of the toolbar are \"focuscycleable\".\n\t\tthis.ungroupedItems.on<CollectionChangeEvent>( 'change', this._updateFocusCycleableItems.bind( this ) );\n\n\t\t// Make sure the #groupedItemsDropdown is also included in cycling when it appears.\n\t\tview.children.on<CollectionChangeEvent>( 'change', this._updateFocusCycleableItems.bind( this ) );\n\n\t\t// ToolbarView#items is dynamic. When an item is added or removed, it should be automatically\n\t\t// represented in either grouped or ungrouped items at the right index.\n\t\t// In other words #items == concat( #ungroupedItems, #groupedItems )\n\t\t// (in length and order).\n\t\tview.items.on<CollectionChangeEvent<View>>( 'change', ( evt, changeData ) => {\n\t\t\tconst index = changeData.index;\n\t\t\tconst added = Array.from( changeData.added );\n\n\t\t\t// Removing.\n\t\t\tfor ( const removedItem of changeData.removed ) {\n\t\t\t\tif ( index >= this.ungroupedItems.length ) {\n\t\t\t\t\tthis.groupedItems.remove( removedItem );\n\t\t\t\t} else {\n\t\t\t\t\tthis.ungroupedItems.remove( removedItem );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Adding.\n\t\t\tfor ( let currentIndex = index; currentIndex < index + added.length; currentIndex++ ) {\n\t\t\t\tconst addedItem = added[ currentIndex - index ];\n\n\t\t\t\tif ( currentIndex > this.ungroupedItems.length ) {\n\t\t\t\t\tthis.groupedItems.add( addedItem, currentIndex - this.ungroupedItems.length );\n\t\t\t\t} else {\n\t\t\t\t\tthis.ungroupedItems.add( addedItem, currentIndex );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// When new ungrouped items join in and land in #ungroupedItems, there's a chance it causes\n\t\t\t// the toolbar to overflow.\n\t\t\t// Consequently if removed from grouped or ungrouped items, there is a chance\n\t\t\t// some new space is available and we could do some ungrouping.\n\t\t\tthis._updateGrouping();\n\t\t} );\n\n\t\tview.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t// To group items dynamically, the toolbar needs a dedicated CSS class.\n\t\t\t\t\t'ck-toolbar_grouping'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Enables dynamic items grouping based on the dimensions of the toolbar.\n\t *\n\t * @param view An instance of the toolbar that this behavior is added to.\n\t */\n\tpublic render( view: ToolbarView ): void {\n\t\tthis.viewElement = view.element;\n\n\t\tthis._enableGroupingOnResize();\n\t\tthis._enableGroupingOnMaxWidthChange( view );\n\t}\n\n\t/**\n\t * Cleans up the internals used by this behavior.\n\t */\n\tpublic destroy(): void {\n\t\t// The dropdown may not be in ToolbarView#children at the moment of toolbar destruction\n\t\t// so let's make sure it's actually destroyed along with the toolbar.\n\t\tthis.groupedItemsDropdown.destroy();\n\n\t\tthis.resizeObserver!.destroy();\n\t}\n\n\t/**\n\t * When called, it will check if any of the {@link #ungroupedItems} do not fit into a single row of the toolbar,\n\t * and it will move them to the {@link #groupedItems} when it happens.\n\t *\n\t * At the same time, it will also check if there is enough space in the toolbar for the first of the\n\t * {@link #groupedItems} to be returned back to {@link #ungroupedItems} and still fit into a single row\n\t * without the toolbar wrapping.\n\t */\n\tprivate _updateGrouping() {\n\t\t// Do no grouping–related geometry analysis when the toolbar is detached from visible DOM,\n\t\t// for instance before #render(), or after render but without a parent or a parent detached\n\t\t// from DOM. DOMRects won't work anyway and there will be tons of warning in the console and\n\t\t// nothing else. This happens, for instance, when the toolbar is detached from DOM and\n\t\t// some logic adds or removes its #items.\n\t\tif ( !this.viewElement!.ownerDocument.body.contains( this.viewElement! ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not update grouping when the element is invisible. Such toolbar has DOMRect filled with zeros\n\t\t// and that would cause all items to be grouped. Instead, queue the grouping so it runs next time\n\t\t// the toolbar is visible (the next ResizeObserver callback execution). This is handy because\n\t\t// the grouping could be caused by increasing the #maxWidth when the toolbar was invisible and the next\n\t\t// time it shows up, some items could actually be ungrouped (https://github.com/ckeditor/ckeditor5/issues/6575).\n\t\tif ( !isVisible( this.viewElement ) ) {\n\t\t\tthis.shouldUpdateGroupingOnNextResize = true;\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Remember how many items were initially grouped so at the it is possible to figure out if the number\n\t\t// of grouped items has changed. If the number has changed, geometry of the toolbar has also changed.\n\t\tconst initialGroupedItemsCount = this.groupedItems.length;\n\t\tlet wereItemsGrouped;\n\n\t\t// Group #items as long as some wrap to the next row. This will happen, for instance,\n\t\t// when the toolbar is getting narrow and there is not enough space to display all items in\n\t\t// a single row.\n\t\twhile ( this._areItemsOverflowing ) {\n\t\t\tthis._groupLastItem();\n\n\t\t\twereItemsGrouped = true;\n\t\t}\n\n\t\t// If none were grouped now but there were some items already grouped before,\n\t\t// then, what the hell, maybe let's see if some of them can be ungrouped. This happens when,\n\t\t// for instance, the toolbar is stretching and there's more space in it than before.\n\t\tif ( !wereItemsGrouped && this.groupedItems.length ) {\n\t\t\t// Ungroup items as long as none are overflowing or there are none to ungroup left.\n\t\t\twhile ( this.groupedItems.length && !this._areItemsOverflowing ) {\n\t\t\t\tthis._ungroupFirstItem();\n\t\t\t}\n\n\t\t\t// If the ungrouping ended up with some item wrapping to the next row,\n\t\t\t// put it back to the group toolbar (\"undo the last ungroup\"). We don't know whether\n\t\t\t// an item will wrap or not until we ungroup it (that's a DOM/CSS thing) so this\n\t\t\t// clean–up is vital for the algorithm.\n\t\t\tif ( this._areItemsOverflowing ) {\n\t\t\t\tthis._groupLastItem();\n\t\t\t}\n\t\t}\n\n\t\tif ( this.groupedItems.length !== initialGroupedItemsCount ) {\n\t\t\tthis.view.fire<ToolbarViewGroupedItemsUpdateEvent>( 'groupedItemsUpdate' );\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when {@link module:ui/toolbar/toolbarview~ToolbarView#element} children visually overflow,\n\t * for instance if the toolbar is narrower than its members. Returns `false` otherwise.\n\t */\n\tprivate get _areItemsOverflowing() {\n\t\t// An empty toolbar cannot overflow.\n\t\tif ( !this.ungroupedItems.length ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst element = this.viewElement;\n\t\tconst uiLanguageDirection = this.viewLocale.uiLanguageDirection;\n\t\tconst lastChildRect = new Rect( element!.lastChild as any );\n\t\tconst toolbarRect = new Rect( element! );\n\n\t\tif ( !this.cachedPadding ) {\n\t\t\tconst computedStyle = global.window.getComputedStyle( element! );\n\t\t\tconst paddingProperty = uiLanguageDirection === 'ltr' ? 'paddingRight' : 'paddingLeft';\n\n\t\t\t// parseInt() is essential because of quirky floating point numbers logic and DOM.\n\t\t\t// If the padding turned out too big because of that, the grouped items dropdown would\n\t\t\t// always look (from the Rect perspective) like it overflows (while it's not).\n\t\t\tthis.cachedPadding = Number.parseInt( computedStyle[ paddingProperty ] );\n\t\t}\n\n\t\tif ( uiLanguageDirection === 'ltr' ) {\n\t\t\treturn lastChildRect.right > toolbarRect.right - this.cachedPadding;\n\t\t} else {\n\t\t\treturn lastChildRect.left < toolbarRect.left + this.cachedPadding;\n\t\t}\n\t}\n\n\t/**\n\t * Enables the functionality that prevents {@link #ungroupedItems} from overflowing (wrapping to the next row)\n\t * upon resize when there is little space available. Instead, the toolbar items are moved to the\n\t * {@link #groupedItems} collection and displayed in a dropdown at the end of the row (which has its own nested toolbar).\n\t *\n\t * When called, the toolbar will automatically analyze the location of its {@link #ungroupedItems} and \"group\"\n\t * them in the dropdown if necessary. It will also observe the browser window for size changes in\n\t * the future and respond to them by grouping more items or reverting already grouped back, depending\n\t * on the visual space available.\n\t */\n\tprivate _enableGroupingOnResize() {\n\t\tlet previousWidth: number | undefined;\n\n\t\t// TODO: Consider debounce.\n\t\tthis.resizeObserver = new ResizeObserver( this.viewElement!, entry => {\n\t\t\tif ( !previousWidth || previousWidth !== entry.contentRect.width || this.shouldUpdateGroupingOnNextResize ) {\n\t\t\t\tthis.shouldUpdateGroupingOnNextResize = false;\n\n\t\t\t\tthis._updateGrouping();\n\n\t\t\t\tpreviousWidth = entry.contentRect.width;\n\t\t\t}\n\t\t} );\n\n\t\tthis._updateGrouping();\n\t}\n\n\t/**\n\t * Enables the grouping functionality, just like {@link #_enableGroupingOnResize} but the difference is that\n\t * it listens to the changes of {@link module:ui/toolbar/toolbarview~ToolbarView#maxWidth} instead.\n\t */\n\tprivate _enableGroupingOnMaxWidthChange( view: View ) {\n\t\tview.on<ObservableChangeEvent>( 'change:maxWidth', () => {\n\t\t\tthis._updateGrouping();\n\t\t} );\n\t}\n\n\t/**\n\t * When called, it will remove the last item from {@link #ungroupedItems} and move it back\n\t * to the {@link #groupedItems} collection.\n\t *\n\t * The opposite of {@link #_ungroupFirstItem}.\n\t */\n\tprivate _groupLastItem() {\n\t\tif ( !this.groupedItems.length ) {\n\t\t\tthis.viewChildren.add( new ToolbarSeparatorView() );\n\t\t\tthis.viewChildren.add( this.groupedItemsDropdown );\n\t\t\tthis.viewFocusTracker.add( this.groupedItemsDropdown.element! );\n\t\t}\n\n\t\tthis.groupedItems.add( this.ungroupedItems.remove( this.ungroupedItems.last! ), 0 );\n\t}\n\n\t/**\n\t * Moves the very first item belonging to {@link #groupedItems} back\n\t * to the {@link #ungroupedItems} collection.\n\t *\n\t * The opposite of {@link #_groupLastItem}.\n\t */\n\tprivate _ungroupFirstItem() {\n\t\tthis.ungroupedItems.add( this.groupedItems.remove( this.groupedItems.first! ) );\n\n\t\tif ( !this.groupedItems.length ) {\n\t\t\tthis.viewChildren.remove( this.groupedItemsDropdown );\n\t\t\tthis.viewChildren.remove( this.viewChildren.last! );\n\t\t\tthis.viewFocusTracker.remove( this.groupedItemsDropdown.element! );\n\t\t}\n\t}\n\n\t/**\n\t * Creates the {@link #groupedItemsDropdown} that hosts the members of the {@link #groupedItems}\n\t * collection when there is not enough space in the toolbar to display all items in a single row.\n\t */\n\tprivate _createGroupedItemsDropdown() {\n\t\tconst locale = this.viewLocale;\n\t\tconst t = locale.t;\n\t\tconst dropdown = createDropdown( locale );\n\n\t\tdropdown.class = 'ck-toolbar__grouped-dropdown';\n\n\t\t// Make sure the dropdown never sticks out to the left/right. It should be under the main toolbar.\n\t\t// (https://github.com/ckeditor/ckeditor5/issues/5608)\n\t\tdropdown.panelPosition = locale.uiLanguageDirection === 'ltr' ? 'sw' : 'se';\n\n\t\taddToolbarToDropdown( dropdown, this.groupedItems );\n\n\t\tdropdown.buttonView.set( {\n\t\t\tlabel: t( 'Show more items' ),\n\t\t\ttooltip: true,\n\t\t\ttooltipPosition: locale.uiLanguageDirection === 'rtl' ? 'se' : 'sw',\n\t\t\ticon: threeVerticalDots\n\t\t} );\n\n\t\treturn dropdown;\n\t}\n\n\t/**\n\t * Updates the {@link module:ui/toolbar/toolbarview~ToolbarView#focusables focus–cycleable items}\n\t * collection so it represents the up–to–date state of the UI from the perspective of the user.\n\t *\n\t * For instance, the {@link #groupedItemsDropdown} can show up and hide but when it is visible,\n\t * it must be subject to focus cycling in the toolbar.\n\t *\n\t * See the {@link module:ui/toolbar/toolbarview~ToolbarView#focusables collection} documentation\n\t * to learn more about the purpose of this method.\n\t */\n\tprivate _updateFocusCycleableItems() {\n\t\tthis.viewFocusables.clear();\n\n\t\tthis.ungroupedItems.map( item => {\n\t\t\tthis.viewFocusables.add( item );\n\t\t} );\n\n\t\tif ( this.groupedItems.length ) {\n\t\t\tthis.viewFocusables.add( this.groupedItemsDropdown );\n\t\t}\n\t}\n}\n\n/**\n * Options passed to the {@link module:ui/toolbar/toolbarview~ToolbarView#constructor} of the toolbar.\n */\nexport interface ToolbarOptions {\n\n\t/**\n\t * When set to `true`, the toolbar will automatically group {@link module:ui/toolbar/toolbarview~ToolbarView#items} that\n\t * would normally wrap to the next line when there is not enough space to display them in a single row, for\n\t * instance, if the parent container of the toolbar is narrow. For toolbars in absolutely positioned containers\n\t * without width restrictions also the {@link module:ui/toolbar/toolbarview~ToolbarOptions#isFloating} option is required to be `true`.\n\t *\n\t * See also: {@link module:ui/toolbar/toolbarview~ToolbarView#maxWidth}.\n\t */\n\tshouldGroupWhenFull?: boolean;\n\n\t/**\n\t * This option should be enabled for toolbars in absolutely positioned containers without width restrictions\n\t * to enable automatic {@link module:ui/toolbar/toolbarview~ToolbarView#items} grouping.\n\t * When this option is set to `true`, the items will stop wrapping to the next line\n\t * and together with {@link module:ui/toolbar/toolbarview~ToolbarOptions#shouldGroupWhenFull},\n\t * this will allow grouping them when there is not enough space in a single row.\n\t */\n\tisFloating?: boolean;\n}\n\n/**\n * A class interface defining the behavior of the {@link module:ui/toolbar/toolbarview~ToolbarView}.\n *\n * Toolbar behaviors extend its look and functionality and have an impact on the\n * {@link module:ui/toolbar/toolbarview~ToolbarView#element} template or\n * {@link module:ui/toolbar/toolbarview~ToolbarView#render rendering}. They can be enabled\n * conditionally, e.g. depending on the configuration of the toolbar.\n */\nexport interface ToolbarBehavior {\n\n\t/**\n\t * A method called after the toolbar has been {@link module:ui/toolbar/toolbarview~ToolbarView#render rendered}.\n\t * It can be used to, for example, customize the behavior of the toolbar when its\n\t * {@link module:ui/toolbar/toolbarview~ToolbarView#element} is available.\n\t *\n\t * @param view An instance of the toolbar being rendered.\n\t */\n\trender( view: ToolbarView ): void;\n\n\t/**\n\t * A method called after the toolbar has been {@link module:ui/toolbar/toolbarview~ToolbarView#destroy destroyed}.\n\t * It allows cleaning up after the toolbar behavior, for instance, this is the right place to detach\n\t * event listeners, free up references, etc.\n\t */\n\tdestroy(): void;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/bindings/preventdefault\n */\n\nimport type { ListenerBinding } from '../template';\nimport type View from '../view';\n\n/**\n * A helper which executes a native `Event.preventDefault()` if the target of an event equals the\n * {@link module:ui/view~View#element element of the view}. It shortens the definition of a\n * {@link module:ui/view~View#template template}.\n *\n * ```ts\n * // In a class extending View.\n * import preventDefault from '@ckeditor/ckeditor5-ui/src/bindings/preventdefault';\n *\n * // ...\n *\n * this.setTemplate( {\n * \ttag: 'div',\n *\n * \ton: {\n * \t\t// Prevent the default mousedown action on this view.\n * \t\tmousedown: preventDefault( this )\n * \t}\n * } );\n * ```\n *\n * @param view View instance that defines the template.\n */\nexport default function preventDefault( view: View ): ListenerBinding {\n\treturn view.bindTemplate.to( evt => {\n\t\tif ( evt.target === view.element ) {\n\t\t\tevt.preventDefault();\n\t\t}\n\t} );\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./list.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/list/listview\n */\n\nimport View from '../view';\nimport FocusCycler from '../focuscycler';\n\nimport type ListItemView from './listitemview';\nimport type DropdownPanelFocusable from '../dropdown/dropdownpanelfocusable';\nimport type ViewCollection from '../viewcollection';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype Locale\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/list/list.css';\n\n/**\n * The list view class.\n */\nexport default class ListView extends View<HTMLUListElement> implements DropdownPanelFocusable {\n\t/**\n\t * Collection of the child list views.\n\t */\n\tpublic readonly items: ViewCollection;\n\n\t/**\n\t * Tracks information about DOM focus in the list.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * Instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * Label used by assistive technologies to describe this list element.\n\t *\n\t * @observable\n\t */\n\tdeclare public ariaLabel: string | undefined;\n\n\t/**\n\t * Helps cycling over focusable {@link #items} in the list.\n\t */\n\tprivate readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.items = this.createCollection();\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this.items,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate list items backwards using the arrowup key.\n\t\t\t\tfocusPrevious: 'arrowup',\n\n\t\t\t\t// Navigate toolbar items forwards using the arrowdown key.\n\t\t\t\tfocusNext: 'arrowdown'\n\t\t\t}\n\t\t} );\n\n\t\tthis.set( 'ariaLabel', undefined );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'ul',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-reset',\n\t\t\t\t\t'ck-list'\n\t\t\t\t],\n\t\t\t\t'aria-label': bind.to( 'ariaLabel' )\n\t\t\t},\n\n\t\t\tchildren: this.items\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Items added before rendering should be known to the #focusTracker.\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t}\n\n\t\tthis.items.on<CollectionAddEvent<ListItemView>>( 'add', ( evt, item ) => {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t} );\n\n\t\tthis.items.on<CollectionRemoveEvent<ListItemView>>( 'remove', ( evt, item ) => {\n\t\t\tthis.focusTracker.remove( item.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the first focusable in {@link #items}.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Focuses the last focusable in {@link #items}.\n\t */\n\tpublic focusLast(): void {\n\t\tthis._focusCycler.focusLast();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/list/listitemview\n */\n\nimport View from '../view';\n\nimport type { FocusableView } from '../focuscycler';\nimport type ViewCollection from '../viewcollection';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The list item view class.\n */\nexport default class ListItemView extends View {\n\t/**\n\t * Collection of the child views inside of the list item {@link #element}.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * Controls whether the item view is visible. Visible by default, list items are hidden\n\t * using a CSS class.\n\t *\n\t * @observable\n\t * @default true\n\t */\n\tdeclare public isVisible: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'isVisible', true );\n\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'li',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-list__item',\n\t\t\t\t\tbind.if( 'isVisible', 'ck-hidden', value => !value )\n\t\t\t\t]\n\t\t\t},\n\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the list item.\n\t */\n\tpublic focus(): void {\n\t\t( this.children.first as FocusableView ).focus();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/list/listseparatorview\n */\n\nimport View from '../view';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The list separator view class.\n */\nexport default class ListSeparatorView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'li',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-list__separator'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./toolbardropdown.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./listdropdown.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/dropdown/utils\n */\n\nimport DropdownPanelView from './dropdownpanelview';\nimport DropdownView from './dropdownview';\nimport DropdownButtonView from './button/dropdownbuttonview';\nimport ToolbarView from '../toolbar/toolbarview';\nimport ListView from '../list/listview';\nimport ListItemView from '../list/listitemview';\nimport ListSeparatorView from '../list/listseparatorview';\nimport ButtonView from '../button/buttonview';\nimport SplitButtonView from './button/splitbuttonview';\nimport SwitchButtonView from '../button/switchbuttonview';\nimport ViewCollection from '../viewcollection';\n\nimport clickOutsideHandler from '../bindings/clickoutsidehandler';\n\nimport type { default as View, UIViewRenderEvent } from '../view';\nimport type { ButtonExecuteEvent } from '../button/button';\nimport type Model from '../model';\nimport type DropdownButton from './button/dropdownbutton';\nimport type { FocusableView } from '../focuscycler';\nimport type { FalsyValue } from '../template';\n\nimport {\n\tglobal,\n\tpriorities,\n\tlogWarning,\n\ttype Collection,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/dropdown/toolbardropdown.css';\nimport '../../theme/components/dropdown/listdropdown.css';\n\n/**\n * A helper for creating dropdowns. It creates an instance of a {@link module:ui/dropdown/dropdownview~DropdownView dropdown},\n * with a {@link module:ui/dropdown/button/dropdownbutton~DropdownButton button},\n * {@link module:ui/dropdown/dropdownpanelview~DropdownPanelView panel} and all standard dropdown's behaviors.\n *\n * # Creating dropdowns\n *\n * By default, the default {@link module:ui/dropdown/button/dropdownbuttonview~DropdownButtonView} class is used as\n * definition of the button:\n *\n * ```ts\n * const dropdown = createDropdown( model );\n *\n * // Configure dropdown's button properties:\n * dropdown.buttonView.set( {\n * \tlabel: 'A dropdown',\n * \twithText: true\n * } );\n *\n * dropdown.render();\n *\n * // Will render a dropdown labeled \"A dropdown\" with an empty panel.\n * document.body.appendChild( dropdown.element );\n * ```\n *\n * You can also provide other button views (they need to implement the\n * {@link module:ui/dropdown/button/dropdownbutton~DropdownButton} interface). For instance, you can use\n * {@link module:ui/dropdown/button/splitbuttonview~SplitButtonView} to create a dropdown with a split button.\n *\n * ```ts\n * const dropdown = createDropdown( locale, SplitButtonView );\n *\n * // Configure dropdown's button properties:\n * dropdown.buttonView.set( {\n * \tlabel: 'A dropdown',\n * \twithText: true\n * } );\n *\n * dropdown.buttonView.on( 'execute', () => {\n * \t// Add the behavior of the \"action part\" of the split button.\n * \t// Split button consists of the \"action part\" and \"arrow part\".\n * \t// The arrow opens the dropdown while the action part can have some other behavior.\n * } );\n *\n * dropdown.render();\n *\n * // Will render a dropdown labeled \"A dropdown\" with an empty panel.\n * document.body.appendChild( dropdown.element );\n * ```\n *\n * # Adding content to the dropdown's panel\n *\n * The content of the panel can be inserted directly into the `dropdown.panelView.element`:\n *\n * ```ts\n * dropdown.panelView.element.textContent = 'Content of the panel';\n * ```\n *\n * However, most of the time you will want to add there either a {@link module:ui/list/listview~ListView list of options}\n * or a list of buttons (i.e. a {@link module:ui/toolbar/toolbarview~ToolbarView toolbar}).\n * To simplify the task, you can use, respectively, {@link module:ui/dropdown/utils~addListToDropdown} or\n * {@link module:ui/dropdown/utils~addToolbarToDropdown} utils.\n *\n * @param locale The locale instance.\n * @param ButtonClass The dropdown button view class. Needs to implement the\n * {@link module:ui/dropdown/button/dropdownbutton~DropdownButton} interface.\n * @returns The dropdown view instance.\n */\nexport function createDropdown(\n\tlocale: Locale | undefined,\n\tButtonClass: new ( locale?: Locale ) => DropdownButton & FocusableView = DropdownButtonView\n): DropdownView {\n\tconst buttonView = new ButtonClass( locale );\n\n\tconst panelView = new DropdownPanelView( locale );\n\tconst dropdownView = new DropdownView( locale, buttonView, panelView );\n\n\tbuttonView.bind( 'isEnabled' ).to( dropdownView );\n\n\tif ( buttonView instanceof SplitButtonView ) {\n\t\tbuttonView.arrowView.bind( 'isOn' ).to( dropdownView, 'isOpen' );\n\t} else {\n\t\tbuttonView.bind( 'isOn' ).to( dropdownView, 'isOpen' );\n\t}\n\n\taddDefaultBehavior( dropdownView );\n\n\treturn dropdownView;\n}\n\n/**\n * Adds an instance of {@link module:ui/toolbar/toolbarview~ToolbarView} to a dropdown.\n *\n * ```ts\n * const buttonsCreator = () => {\n * \tconst buttons = [];\n *\n * \t// Either create a new ButtonView instance or create existing.\n * \tbuttons.push( new ButtonView() );\n * \tbuttons.push( editor.ui.componentFactory.create( 'someButton' ) );\n * };\n *\n * const dropdown = createDropdown( locale );\n *\n * addToolbarToDropdown( dropdown, buttonsCreator, { isVertical: true } );\n *\n * // Will render a vertical button dropdown labeled \"A button dropdown\"\n * // with a button group in the panel containing two buttons.\n * // Buttons inside the dropdown will be created on first dropdown panel open.\n * dropdown.render()\n * document.body.appendChild( dropdown.element );\n * ```\n *\n * **Note:** To improve the accessibility, you can tell the dropdown to focus the first active button of the toolbar when the dropdown\n * {@link module:ui/dropdown/dropdownview~DropdownView#isOpen gets open}. See the documentation of `options` to learn more.\n *\n * **Note:** Toolbar view will be created on first open of the dropdown.\n *\n * See {@link module:ui/dropdown/utils~createDropdown} and {@link module:ui/toolbar/toolbarview~ToolbarView}.\n *\n * @param dropdownView A dropdown instance to which `ToolbarView` will be added.\n * @param options.enableActiveItemFocusOnDropdownOpen When set `true`, the focus will automatically move to the first\n * active {@link module:ui/toolbar/toolbarview~ToolbarView#items item} of the toolbar upon\n * {@link module:ui/dropdown/dropdownview~DropdownView#isOpen opening} the dropdown. Active items are those with the `isOn` property set\n * `true` (for instance {@link module:ui/button/buttonview~ButtonView buttons}). If no active items is found, the toolbar will be focused\n * as a whole resulting in the focus moving to its first focusable item (default behavior of\n * {@link module:ui/dropdown/dropdownview~DropdownView}).\n * @param options.ariaLabel Label used by assistive technologies to describe toolbar element.\n * @param options.maxWidth The maximum width of the toolbar element.\n * Details: {@link module:ui/toolbar/toolbarview~ToolbarView#maxWidth}.\n * @param options.class An additional CSS class added to the toolbar element.\n * @param options.isCompact When set true, makes the toolbar look compact with toolbar element.\n * @param options.isVertical Controls the orientation of toolbar items.\n */\nexport function addToolbarToDropdown(\n\tdropdownView: DropdownView,\n\tbuttonsOrCallback: Array<View> | ViewCollection | ( () => Array<View> | ViewCollection ),\n\toptions: {\n\t\tenableActiveItemFocusOnDropdownOpen?: boolean;\n\t\tariaLabel?: string;\n\t\tmaxWidth?: string;\n\t\tclass?: string;\n\t\tisCompact?: boolean;\n\t\tisVertical?: boolean;\n\t} = {}\n): void {\n\tdropdownView.extendTemplate( {\n\t\tattributes: {\n\t\t\tclass: [ 'ck-toolbar-dropdown' ]\n\t\t}\n\t} );\n\n\tif ( dropdownView.isOpen ) {\n\t\taddToolbarToOpenDropdown( dropdownView, buttonsOrCallback, options );\n\t} else {\n\t\tdropdownView.once(\n\t\t\t'change:isOpen',\n\t\t\t() => addToolbarToOpenDropdown( dropdownView, buttonsOrCallback, options ),\n\t\t\t{ priority: 'highest' }\n\t\t);\n\t}\n\n\tif ( options.enableActiveItemFocusOnDropdownOpen ) {\n\t\t// Accessibility: Focus the first active button in the toolbar when the dropdown gets open.\n\t\tfocusChildOnDropdownOpen( dropdownView, () => dropdownView.toolbarView!.items.find( ( item: any ) => item.isOn ) );\n\t}\n}\n\n/**\n * Adds an instance of {@link module:ui/toolbar/toolbarview~ToolbarView} to a dropdown.\n */\nfunction addToolbarToOpenDropdown(\n\tdropdownView: DropdownView,\n\tbuttonsOrCallback: Array<View> | ViewCollection | ( () => Array<View> | ViewCollection ),\n\toptions: {\n\t\tariaLabel?: string;\n\t\tmaxWidth?: string;\n\t\tclass?: string;\n\t\tisCompact?: boolean;\n\t\tisVertical?: boolean;\n\t}\n): void {\n\tconst locale = dropdownView.locale!;\n\tconst t = locale.t;\n\n\tconst toolbarView = dropdownView.toolbarView = new ToolbarView( locale );\n\tconst buttons = typeof buttonsOrCallback == 'function' ? buttonsOrCallback() : buttonsOrCallback;\n\n\ttoolbarView.ariaLabel = options.ariaLabel || t( 'Dropdown toolbar' );\n\n\tif ( options.maxWidth ) {\n\t\ttoolbarView.maxWidth = options.maxWidth;\n\t}\n\n\tif ( options.class ) {\n\t\ttoolbarView.class = options.class;\n\t}\n\n\tif ( options.isCompact ) {\n\t\ttoolbarView.isCompact = options.isCompact;\n\t}\n\n\tif ( options.isVertical ) {\n\t\ttoolbarView.isVertical = true;\n\t}\n\n\tif ( buttons instanceof ViewCollection ) {\n\t\ttoolbarView.items.bindTo( buttons ).using( item => item );\n\t} else {\n\t\ttoolbarView.items.addMany( buttons );\n\t}\n\n\tdropdownView.panelView.children.add( toolbarView );\n\ttoolbarView.items.delegate( 'execute' ).to( dropdownView );\n}\n\n/**\n * Adds an instance of {@link module:ui/list/listview~ListView} to a dropdown.\n *\n * ```ts\n * const items = new Collection();\n *\n * items.add( {\n * \ttype: 'button',\n * \tmodel: new Model( {\n * \t\twithText: true,\n * \t\tlabel: 'First item',\n * \t\tlabelStyle: 'color: red'\n * \t} )\n * } );\n *\n * items.add( {\n * \t type: 'button',\n * \t model: new Model( {\n * \t\twithText: true,\n * \t\tlabel: 'Second item',\n * \t\tlabelStyle: 'color: green',\n * \t\tclass: 'foo'\n * \t} )\n * } );\n *\n * const dropdown = createDropdown( locale );\n *\n * addListToDropdown( dropdown, items );\n *\n * // Will render a dropdown with a list in the panel containing two items.\n * dropdown.render()\n * document.body.appendChild( dropdown.element );\n * ```\n *\n * The `items` collection passed to this methods controls the presence and attributes of respective\n * {@link module:ui/list/listitemview~ListItemView list items}.\n *\n * **Note:** To improve the accessibility, when a list is added to the dropdown using this helper the dropdown will automatically attempt\n * to focus the first active item (a host to a {@link module:ui/button/buttonview~ButtonView} with\n * {@link module:ui/button/buttonview~ButtonView#isOn} set `true`) or the very first item when none are active.\n *\n * **Note:** List view will be created on first open of the dropdown.\n *\n * See {@link module:ui/dropdown/utils~createDropdown} and {@link module:list/list~List}.\n *\n * @param dropdownView A dropdown instance to which `ListVIew` will be added.\n * @param itemsOrCallback A collection of the list item definitions or a callback returning a list item definitions to populate the list.\n * @param options.ariaLabel Label used by assistive technologies to describe list element.\n */\nexport function addListToDropdown(\n\tdropdownView: DropdownView,\n\titemsOrCallback: Collection<ListDropdownItemDefinition> | ( () => Collection<ListDropdownItemDefinition> ),\n\toptions: {\n\t\tariaLabel?: string;\n\t} = {}\n): void {\n\tif ( dropdownView.isOpen ) {\n\t\taddListToOpenDropdown( dropdownView, itemsOrCallback, options );\n\t} else {\n\t\tdropdownView.once(\n\t\t\t'change:isOpen',\n\t\t\t() => addListToOpenDropdown( dropdownView, itemsOrCallback, options ),\n\t\t\t{ priority: 'highest' }\n\t\t);\n\t}\n\n\t// Accessibility: Focus the first active button in the list when the dropdown gets open.\n\tfocusChildOnDropdownOpen( dropdownView, () => dropdownView.listView!.items.find( item => {\n\t\tif ( item instanceof ListItemView ) {\n\t\t\treturn ( item.children.first as any ).isOn;\n\t\t}\n\n\t\treturn false;\n\t} ) );\n}\n\n/**\n * Adds an instance of {@link module:ui/list/listview~ListView} to a dropdown.\n */\nfunction addListToOpenDropdown(\n\tdropdownView: DropdownView,\n\titemsOrCallback: Collection<ListDropdownItemDefinition> | ( () => Collection<ListDropdownItemDefinition> ),\n\toptions: {\n\t\tariaLabel?: string;\n\t}\n): void {\n\tconst locale = dropdownView.locale;\n\n\tconst listView = dropdownView.listView = new ListView( locale );\n\tconst items = typeof itemsOrCallback == 'function' ? itemsOrCallback() : itemsOrCallback;\n\n\tlistView.ariaLabel = options.ariaLabel;\n\n\tlistView.items.bindTo( items ).using( def => {\n\t\tif ( def.type === 'separator' ) {\n\t\t\treturn new ListSeparatorView( locale );\n\t\t} else if ( def.type === 'button' || def.type === 'switchbutton' ) {\n\t\t\tconst listItemView = new ListItemView( locale );\n\t\t\tlet buttonView;\n\n\t\t\tif ( def.type === 'button' ) {\n\t\t\t\tbuttonView = new ButtonView( locale );\n\t\t\t} else {\n\t\t\t\tbuttonView = new SwitchButtonView( locale );\n\t\t\t}\n\n\t\t\t// Bind all model properties to the button view.\n\t\t\tbuttonView.bind( ...Object.keys( def.model ) as Array<keyof ButtonView> ).to( def.model );\n\t\t\tbuttonView.delegate( 'execute' ).to( listItemView );\n\n\t\t\tlistItemView.children.add( buttonView );\n\n\t\t\treturn listItemView;\n\t\t}\n\n\t\treturn null;\n\t} );\n\n\tdropdownView.panelView.children.add( listView );\n\n\tlistView.items.delegate( 'execute' ).to( dropdownView );\n}\n\n/**\n * A helper to be used on an existing {@link module:ui/dropdown/dropdownview~DropdownView} that focuses\n * a specific child in DOM when the dropdown {@link module:ui/dropdown/dropdownview~DropdownView#isOpen gets open}.\n *\n * @param dropdownView A dropdown instance to which the focus behavior will be added.\n * @param childSelectorCallback A callback executed when the dropdown gets open. It should return a {@link module:ui/view~View}\n * instance (child of {@link module:ui/dropdown/dropdownview~DropdownView#panelView}) that will get focused or a falsy value.\n * If falsy value is returned, a default behavior of the dropdown will engage focusing the first focusable child in\n * the {@link module:ui/dropdown/dropdownview~DropdownView#panelView}.\n */\nexport function focusChildOnDropdownOpen(\n\tdropdownView: DropdownView,\n\tchildSelectorCallback: () => View | FalsyValue\n): void {\n\tdropdownView.on<ObservableChangeEvent>( 'change:isOpen', () => {\n\t\tif ( !dropdownView.isOpen ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst childToFocus: ( View & { focus?: () => void } ) | FalsyValue = childSelectorCallback();\n\n\t\tif ( !childToFocus ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( typeof childToFocus.focus === 'function' ) {\n\t\t\tchildToFocus.focus();\n\t\t} else {\n\t\t\t/**\n\t\t\t * The child view of a {@link module:ui/dropdown/dropdownview~DropdownView dropdown} is missing the `focus()` method\n\t\t\t * and could not be focused when the dropdown got {@link module:ui/dropdown/dropdownview~DropdownView#isOpen open}.\n\t\t\t *\n\t\t\t * Making the content of a dropdown focusable in this case greatly improves the accessibility. Please make the view instance\n\t\t\t * implements the {@link module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable focusable interface} for the best user\n\t\t\t * experience.\n\t\t\t *\n\t\t\t * @error ui-dropdown-focus-child-on-open-child-missing-focus\n\t\t\t * @param {module:ui/view~View} view\n\t\t\t */\n\t\t\tlogWarning( 'ui-dropdown-focus-child-on-open-child-missing-focus', { view: childToFocus } );\n\t\t}\n\n\t// * Let the panel show up first (do not focus an invisible element).\n\t// * Execute after focusDropdownPanelOnOpen(). See focusDropdownPanelOnOpen() to learn more.\n\t}, { priority: priorities.low - 10 } );\n}\n\n/**\n * Add a set of default behaviors to dropdown view.\n */\nfunction addDefaultBehavior( dropdownView: DropdownView ) {\n\tcloseDropdownOnClickOutside( dropdownView );\n\tcloseDropdownOnExecute( dropdownView );\n\tcloseDropdownOnBlur( dropdownView );\n\tfocusDropdownContentsOnArrows( dropdownView );\n\tfocusDropdownButtonOnClose( dropdownView );\n\tfocusDropdownPanelOnOpen( dropdownView );\n}\n\n/**\n * Adds a behavior to a dropdownView that closes opened dropdown when user clicks outside the dropdown.\n */\nfunction closeDropdownOnClickOutside( dropdownView: DropdownView ) {\n\tdropdownView.on<UIViewRenderEvent>( 'render', () => {\n\t\tclickOutsideHandler( {\n\t\t\temitter: dropdownView,\n\t\t\tactivator: () => dropdownView.isOpen,\n\t\t\tcallback: () => {\n\t\t\t\tdropdownView.isOpen = false;\n\t\t\t},\n\t\t\tcontextElements: [ dropdownView.element! ]\n\t\t} );\n\t} );\n}\n\n/**\n * Adds a behavior to a dropdownView that closes the dropdown view on \"execute\" event.\n */\nfunction closeDropdownOnExecute( dropdownView: DropdownView ) {\n\t// Close the dropdown when one of the list items has been executed.\n\tdropdownView.on<ButtonExecuteEvent>( 'execute', evt => {\n\t\t// Toggling a switch button view should not close the dropdown.\n\t\tif ( evt.source instanceof SwitchButtonView ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdropdownView.isOpen = false;\n\t} );\n}\n\n/**\n * Adds a behavior to a dropdown view that closes opened dropdown when it loses focus.\n */\nfunction closeDropdownOnBlur( dropdownView: DropdownView ) {\n\tdropdownView.focusTracker.on<ObservableChangeEvent<boolean>>( 'change:isFocused', ( evt, name, isFocused ) => {\n\t\tif ( dropdownView.isOpen && !isFocused ) {\n\t\t\tdropdownView.isOpen = false;\n\t\t}\n\t} );\n}\n\n/**\n * Adds a behavior to a dropdownView that focuses the dropdown's panel view contents on keystrokes.\n */\nfunction focusDropdownContentsOnArrows( dropdownView: DropdownView ) {\n\t// If the dropdown panel is already open, the arrow down key should focus the first child of the #panelView.\n\tdropdownView.keystrokes.set( 'arrowdown', ( data, cancel ) => {\n\t\tif ( dropdownView.isOpen ) {\n\t\t\tdropdownView.panelView.focus();\n\t\t\tcancel();\n\t\t}\n\t} );\n\n\t// If the dropdown panel is already open, the arrow up key should focus the last child of the #panelView.\n\tdropdownView.keystrokes.set( 'arrowup', ( data, cancel ) => {\n\t\tif ( dropdownView.isOpen ) {\n\t\t\tdropdownView.panelView.focusLast();\n\t\t\tcancel();\n\t\t}\n\t} );\n}\n\n/**\n * Adds a behavior that focuses the #buttonView when the dropdown was closed but focus was within the #panelView element.\n * This makes sure the focus is never lost.\n */\nfunction focusDropdownButtonOnClose( dropdownView: DropdownView ) {\n\tdropdownView.on<ObservableChangeEvent<boolean>>( 'change:isOpen', ( evt, name, isOpen ) => {\n\t\tif ( isOpen ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst element = dropdownView.panelView.element;\n\n\t\t// If the dropdown was closed, move the focus back to the button (#12125).\n\t\t// Don't touch the focus, if it moved somewhere else (e.g. moved to the editing root on #execute) (#12178).\n\t\t// Note: Don't use the state of the DropdownView#focusTracker here. It fires #blur with the timeout.\n\t\tif ( element && element.contains( global.document.activeElement ) ) {\n\t\t\tdropdownView.buttonView.focus();\n\t\t}\n\t} );\n}\n\n/**\n * Adds a behavior that focuses the #panelView when dropdown gets open (accessibility).\n */\nfunction focusDropdownPanelOnOpen( dropdownView: DropdownView ) {\n\tdropdownView.on<ObservableChangeEvent<boolean>>( 'change:isOpen', ( evt, name, isOpen ) => {\n\t\tif ( !isOpen ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Focus the first item in the dropdown when the dropdown opened.\n\t\tdropdownView.panelView.focus();\n\n\t// * Let the panel show up first (do not focus an invisible element).\n\t// * Also, execute before focusChildOnDropdownOpen() to make sure this helper does not break the\n\t//   focus of a specific child by kicking in too late and resetting the focus in the panel.\n\t}, { priority: 'low' } );\n}\n\n/**\n * A definition of the list item used by the {@link module:ui/dropdown/utils~addListToDropdown}\n * utility.\n */\nexport type ListDropdownItemDefinition = ListDropdownSeparatorDefinition | ListDropdownButtonDefinition;\n\n/**\n * A definition of the 'separator' list item.\n */\nexport type ListDropdownSeparatorDefinition = {\n\ttype: 'separator';\n};\n\n/**\n * A definition of the 'button' or 'switchbutton' list item.\n */\nexport type ListDropdownButtonDefinition = {\n\ttype: 'button' | 'switchbutton';\n\n\t/**\n\t * Model of the item. Its properties fuel the newly created list item (or its children, depending on the `type`).\n\t */\n\tmodel: Model;\n};\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./balloonpanel.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/panel/balloon/balloonpanelview\n */\n\nimport View from '../../view';\nimport type ViewCollection from '../../viewcollection';\n\nimport {\n\tgetOptimalPosition,\n\tglobal,\n\tisRange,\n\ttoUnit,\n\ttype Locale,\n\ttype ObservableChangeEvent,\n\ttype PositionOptions,\n\ttype PositioningFunction,\n\ttype Rect\n} from '@ckeditor/ckeditor5-utils';\n\nimport { isElement } from 'lodash-es';\n\nimport '../../../theme/components/panel/balloonpanel.css';\n\nconst toPx = toUnit( 'px' );\nconst defaultLimiterElement = global.document.body;\n\n/**\n * The balloon panel view class.\n *\n * A floating container which can\n * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#pin pin} to any\n * {@link module:utils/dom/position~Options#target target} in the DOM and remain in that position\n * e.g. when the web page is scrolled.\n *\n * The balloon panel can be used to display contextual, non-blocking UI like forms, toolbars and\n * the like in its {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#content} view\n * collection.\n *\n * There is a number of {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}\n * that the balloon can use, automatically switching from one to another when the viewport space becomes\n * scarce to keep the balloon visible to the user as long as it is possible. The balloon will also\n * accept any custom position set provided by the user compatible with the\n * {@link module:utils/dom/position~Options options}.\n *\n * ```ts\n * const panel = new BalloonPanelView( locale );\n * const childView = new ChildView();\n * const positions = BalloonPanelView.defaultPositions;\n *\n * panel.render();\n *\n * // Add a child view to the panel's content collection.\n * panel.content.add( childView );\n *\n * // Start pinning the panel to an element with the \"target\" id DOM.\n * // The balloon will remain pinned until unpin() is called.\n * panel.pin( {\n * \ttarget: document.querySelector( '#target' ),\n * \tpositions: [\n * \t\tpositions.northArrowSouth,\n * \t\tpositions.southArrowNorth\n * \t]\n * } );\n * ```\n */\nexport default class BalloonPanelView extends View {\n\t/**\n\t * A collection of the child views that creates the balloon panel contents.\n\t */\n\tpublic readonly content: ViewCollection;\n\n\t/**\n\t * The absolute top position of the balloon panel in pixels.\n\t *\n\t * @observable\n\t * @default 0\n\t */\n\tdeclare public top: number;\n\n\t/**\n\t * The absolute left position of the balloon panel in pixels.\n\t *\n\t * @observable\n\t * @default 0\n\t */\n\tdeclare public left: number;\n\n\t/**\n\t * The balloon panel's current position. The position name is reflected in the CSS class set\n\t * to the balloon, i.e. `.ck-balloon-panel_arrow_nw` for the \"arrow_nw\" position. The class\n\t * controls the minor aspects of the balloon's visual appearance like the placement\n\t * of an {@link #withArrow arrow}. To support a new position, an additional CSS must be created.\n\t *\n\t * Default position names correspond with\n\t * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n\t *\n\t * See the {@link #attachTo} and {@link #pin} methods to learn about custom balloon positions.\n\t *\n\t * @observable\n\t * @default 'arrow_nw'\n\t */\n\tdeclare public position: 'arrow_nw' | 'arrow_ne' | 'arrow_sw' | 'arrow_se';\n\n\t/**\n\t * Controls whether the balloon panel is visible or not.\n\t *\n\t * @observable\n\t * @default false\n\t */\n\tdeclare public isVisible: boolean;\n\n\t/**\n\t * Controls whether the balloon panel has an arrow. The presence of the arrow\n\t * is reflected in the `ck-balloon-panel_with-arrow` CSS class.\n\t *\n\t * @observable\n\t * @default true\n\t */\n\tdeclare public withArrow: boolean;\n\n\t/**\n\t * An additional CSS class added to the {@link #element}.\n\t *\n\t * @observable\n\t */\n\tdeclare public class: string | undefined;\n\n\t/**\n\t * A callback that starts pinning the panel when {@link #isVisible} gets\n\t * `true`. Used by {@link #pin}.\n\t *\n\t * @private\n\t */\n\tprivate _pinWhenIsVisibleCallback: ( () => void ) | null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'top', 0 );\n\t\tthis.set( 'left', 0 );\n\t\tthis.set( 'position', 'arrow_nw' );\n\t\tthis.set( 'isVisible', false );\n\t\tthis.set( 'withArrow', true );\n\t\tthis.set( 'class', undefined );\n\n\t\tthis._pinWhenIsVisibleCallback = null;\n\t\tthis.content = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-balloon-panel',\n\t\t\t\t\tbind.to( 'position', value => `ck-balloon-panel_${ value }` ),\n\t\t\t\t\tbind.if( 'isVisible', 'ck-balloon-panel_visible' ),\n\t\t\t\t\tbind.if( 'withArrow', 'ck-balloon-panel_with-arrow' ),\n\t\t\t\t\tbind.to( 'class' )\n\t\t\t\t],\n\n\t\t\t\tstyle: {\n\t\t\t\t\ttop: bind.to( 'top', toPx ),\n\t\t\t\t\tleft: bind.to( 'left', toPx )\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tchildren: this.content\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the panel.\n\t *\n\t * See {@link #isVisible}.\n\t */\n\tpublic show(): void {\n\t\tthis.isVisible = true;\n\t}\n\n\t/**\n\t * Hides the panel.\n\t *\n\t * See {@link #isVisible}.\n\t */\n\tpublic hide(): void {\n\t\tthis.isVisible = false;\n\t}\n\n\t/**\n\t * Attaches the panel to a specified {@link module:utils/dom/position~Options#target} with a\n\t * smart positioning heuristics that chooses from available positions to make sure the panel\n\t * is visible to the user i.e. within the limits of the viewport.\n\t *\n\t * This method accepts configuration {@link module:utils/dom/position~Options options}\n\t * to set the `target`, optional `limiter` and `positions` the balloon should choose from.\n\t *\n\t * ```ts\n\t * const panel = new BalloonPanelView( locale );\n\t * const positions = BalloonPanelView.defaultPositions;\n\t *\n\t * panel.render();\n\t *\n\t * // Attach the panel to an element with the \"target\" id DOM.\n\t * panel.attachTo( {\n\t * \ttarget: document.querySelector( '#target' ),\n\t * \tpositions: [\n\t * \t\tpositions.northArrowSouth,\n\t * \t\tpositions.southArrowNorth\n\t * \t]\n\t * } );\n\t * ```\n\t *\n\t * **Note**: Attaching the panel will also automatically {@link #show} it.\n\t *\n\t * **Note**: An attached panel will not follow its target when the window is scrolled or resized.\n\t * See the {@link #pin} method for a more permanent positioning strategy.\n\t *\n\t * @param options Positioning options compatible with {@link module:utils/dom/position~getOptimalPosition}.\n\t * Default `positions` array is {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n\t */\n\tpublic attachTo( options: Partial<PositionOptions> ): void {\n\t\tthis.show();\n\n\t\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\t\tconst positionOptions = Object.assign( {}, {\n\t\t\telement: this.element,\n\t\t\tpositions: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthMiddleWest,\n\t\t\t\tdefaultPositions.southArrowNorthMiddleEast,\n\t\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\t\tdefaultPositions.northArrowSouth,\n\t\t\t\tdefaultPositions.northArrowSouthMiddleWest,\n\t\t\t\tdefaultPositions.northArrowSouthMiddleEast,\n\t\t\t\tdefaultPositions.northArrowSouthWest,\n\t\t\t\tdefaultPositions.northArrowSouthEast,\n\t\t\t\tdefaultPositions.viewportStickyNorth\n\t\t\t],\n\t\t\tlimiter: defaultLimiterElement,\n\t\t\tfitInViewport: true\n\t\t}, options ) as PositionOptions;\n\n\t\tconst optimalPosition = BalloonPanelView._getOptimalPosition( positionOptions );\n\n\t\t// Usually browsers make some problems with super accurate values like 104.345px\n\t\t// so it is better to use int values.\n\t\tconst left = parseInt( optimalPosition.left as any );\n\t\tconst top = parseInt( optimalPosition.top as any );\n\n\t\tconst position = optimalPosition.name as this[ 'position' ];\n\t\tconst config: { withArrow?: boolean } = optimalPosition.config || {};\n\t\tconst { withArrow = true } = config;\n\n\t\tthis.top = top;\n\t\tthis.left = left;\n\t\tthis.position = position;\n\t\tthis.withArrow = withArrow;\n\t}\n\n\t/**\n\t * Works the same way as the {@link #attachTo} method except that the position of the panel is\n\t * continuously updated when:\n\t *\n\t * * any ancestor of the {@link module:utils/dom/position~Options#target}\n\t * or {@link module:utils/dom/position~Options#limiter} is scrolled,\n\t * * the browser window gets resized or scrolled.\n\t *\n\t * Thanks to that, the panel always sticks to the {@link module:utils/dom/position~Options#target}\n\t * and is immune to the changing environment.\n\t *\n\t * ```ts\n\t * const panel = new BalloonPanelView( locale );\n\t * const positions = BalloonPanelView.defaultPositions;\n\t *\n\t * panel.render();\n\t *\n\t * // Pin the panel to an element with the \"target\" id DOM.\n\t * panel.pin( {\n\t * \ttarget: document.querySelector( '#target' ),\n\t * \tpositions: [\n\t * \t\tpositions.northArrowSouth,\n\t * \t\tpositions.southArrowNorth\n\t * \t]\n\t * } );\n\t * ```\n\t *\n\t * To leave the pinned state, use the {@link #unpin} method.\n\t *\n\t * **Note**: Pinning the panel will also automatically {@link #show} it.\n\t *\n\t * @param options Positioning options compatible with {@link module:utils/dom/position~getOptimalPosition}.\n\t * Default `positions` array is {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n\t */\n\tpublic pin( options: Partial<PositionOptions> ): void {\n\t\tthis.unpin();\n\n\t\tthis._pinWhenIsVisibleCallback = () => {\n\t\t\tif ( this.isVisible ) {\n\t\t\t\tthis._startPinning( options );\n\t\t\t} else {\n\t\t\t\tthis._stopPinning();\n\t\t\t}\n\t\t};\n\n\t\tthis._startPinning( options );\n\n\t\t// Control the state of the listeners depending on whether the panel is visible\n\t\t// or not.\n\t\t// TODO: Use on() (https://github.com/ckeditor/ckeditor5-utils/issues/144).\n\t\tthis.listenTo<ObservableChangeEvent>( this, 'change:isVisible', this._pinWhenIsVisibleCallback );\n\t}\n\n\t/**\n\t * Stops pinning the panel, as set up by {@link #pin}.\n\t */\n\tpublic unpin(): void {\n\t\tif ( this._pinWhenIsVisibleCallback ) {\n\t\t\t// Deactivate listeners attached by pin().\n\t\t\tthis._stopPinning();\n\n\t\t\t// Deactivate the panel pin() control logic.\n\t\t\t// TODO: Use off() (https://github.com/ckeditor/ckeditor5-utils/issues/144).\n\t\t\tthis.stopListening( this, 'change:isVisible', this._pinWhenIsVisibleCallback );\n\n\t\t\tthis._pinWhenIsVisibleCallback = null;\n\n\t\t\tthis.hide();\n\t\t}\n\t}\n\n\t/**\n\t * Starts managing the pinned state of the panel. See {@link #pin}.\n\t *\n\t * @param options Positioning options compatible with {@link module:utils/dom/position~getOptimalPosition}.\n\t */\n\tprivate _startPinning( options: Partial<PositionOptions> ) {\n\t\tthis.attachTo( options );\n\n\t\tconst targetElement = getDomElement( options.target );\n\t\tconst limiterElement = options.limiter ? getDomElement( options.limiter ) : defaultLimiterElement;\n\n\t\t// Then we need to listen on scroll event of eny element in the document.\n\t\tthis.listenTo( global.document, 'scroll', ( evt, domEvt ) => {\n\t\t\tconst scrollTarget = domEvt.target as Element;\n\n\t\t\t// The position needs to be updated if the positioning target is within the scrolled element.\n\t\t\tconst isWithinScrollTarget = targetElement && scrollTarget.contains( targetElement );\n\n\t\t\t// The position needs to be updated if the positioning limiter is within the scrolled element.\n\t\t\tconst isLimiterWithinScrollTarget = limiterElement && scrollTarget.contains( limiterElement );\n\n\t\t\t// The positioning target and/or limiter can be a Rect, object etc..\n\t\t\t// There's no way to optimize the listener then.\n\t\t\tif ( isWithinScrollTarget || isLimiterWithinScrollTarget || !targetElement || !limiterElement ) {\n\t\t\t\tthis.attachTo( options );\n\t\t\t}\n\t\t}, { useCapture: true } );\n\n\t\t// We need to listen on window resize event and update position.\n\t\tthis.listenTo( global.window, 'resize', () => {\n\t\t\tthis.attachTo( options );\n\t\t} );\n\t}\n\n\t/**\n\t * Stops managing the pinned state of the panel. See {@link #pin}.\n\t */\n\tprivate _stopPinning(): void {\n\t\tthis.stopListening( global.document, 'scroll' );\n\t\tthis.stopListening( global.window, 'resize' );\n\t}\n\n\t/**\n\t * A side offset of the arrow tip from the edge of the balloon. Controlled by CSS.\n\t *\n\t * ```\n\t *\t\t ┌───────────────────────┐\n\t *\t\t │                       │\n\t *\t\t │         Balloon       │\n\t *\t\t │         Content       │\n\t *\t\t │                       │\n\t *\t\t └──+    +───────────────┘\n\t *\t\t |   \\  /\n\t *\t\t |    \\/\n\t *\t\t>┼─────┼< ─────────────────────── side offset\n\t *\n\t * ```\n\t *\n\t * @default 25\n\t */\n\tpublic static arrowSideOffset = 25;\n\n\t/**\n\t * A height offset of the arrow from the edge of the balloon. Controlled by CSS.\n\t *\n\t * ```\n\t *\t\t ┌───────────────────────┐\n\t *\t\t │                       │\n\t *\t\t │         Balloon       │\n\t *\t\t │         Content       │      ╱-- arrow height offset\n\t *\t\t │                       │      V\n\t *\t\t └──+    +───────────────┘ --- ─┼───────\n\t *\t\t     \\  /                       │\n\t *\t\t      \\/                        │\n\t *\t\t────────────────────────────────┼───────\n\t *\t\t                                ^\n\t *\n\t *\n\t *\t\t>┼────┼<  arrow height offset\n\t *\t\t │    │\n\t *\t\t │    ┌────────────────────────┐\n\t *\t\t │    │                        │\n\t *\t\t │   ╱                         │\n\t *\t\t │ ╱            Balloon        │\n\t *\t\t │ ╲            Content        │\n\t *\t\t │   ╲                         │\n\t *\t\t │    │                        │\n\t *\t\t │    └────────────────────────┘\n\t * ```\n\t *\n\t * @default 10\n\t*/\n\tpublic static arrowHeightOffset = 10;\n\n\t/**\n\t * A vertical offset of the balloon panel from the edge of the viewport if sticky.\n\t * It helps in accessing toolbar buttons underneath the balloon panel.\n\t *\n\t * ```\n\t *\t\t  ┌───────────────────────────────────────────────────┐\n\t *\t\t  │                      Target                       │\n\t *\t\t  │                                                   │\n\t *\t\t  │                            /── vertical offset    │\n\t *\t\t┌─────────────────────────────V─────────────────────────┐\n\t *\t\t│ Toolbar            ┌─────────────┐                    │\n\t *\t\t├────────────────────│   Balloon   │────────────────────┤\n\t *\t\t│ │                  └─────────────┘                  │ │\n\t *\t\t│ │                                                   │ │\n\t *\t\t│ │                                                   │ │\n\t *\t\t│ │                                                   │ │\n\t *\t\t│ └───────────────────────────────────────────────────┘ │\n\t *\t\t│                        Viewport                       │\n\t *\t\t└───────────────────────────────────────────────────────┘\n\t * ```\n\t *\n\t * @default 20\n\t */\n\tpublic static stickyVerticalOffset = 20;\n\n\t/**\n\t * Function used to calculate the optimal position for the balloon.\n\t */\n\tprivate static _getOptimalPosition = getOptimalPosition;\n\n\t/**\n\t * A default set of positioning functions used by the balloon panel view\n\t * when attaching using the {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#attachTo} method.\n\t *\n\t * The available positioning functions are as follows:\n\t *\n\t * **North west**\n\t *\n\t * * `northWestArrowSouthWest`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t V\n\t *\t\t [ Target ]\n\t * ```\n\t *\n\t * * `northWestArrowSouthMiddleWest`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t    V\n\t *\t\t    [ Target ]\n\t * ```\n\t *\n\t * * `northWestArrowSouth`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t         V\n\t *\t\t         [ Target ]\n\t * ```\n\t *\n\t * * `northWestArrowSouthMiddleEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t             V\n\t *\t\t             [ Target ]\n\t * ```\n\t *\n\t * * `northWestArrowSouthEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t                 V\n\t *\t\t                 [ Target ]\n\t * ```\n\t *\n\t * **North**\n\t *\n\t * * `northArrowSouthWest`\n\t *\n\t * ```\n\t *\t\t    +-----------------+\n\t *\t\t    |     Balloon     |\n\t *\t\t    +-----------------+\n\t *\t\t     V\n\t *\t\t[ Target ]\n\t * ```\n\t *\n\t * * `northArrowSouthMiddleWest`\n\t *\n\t * ```\n\t *\t\t +-----------------+\n\t *\t\t |     Balloon     |\n\t *\t\t +-----------------+\n\t *\t\t     V\n\t *\t\t[ Target ]\n\t * ```\n\t * * `northArrowSouth`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t         V\n\t *\t\t    [ Target ]\n\t * ```\n\t *\n\t * * `northArrowSouthMiddleEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t             V\n\t *\t\t        [ Target ]\n\t * ```\n\t *\n\t * * `northArrowSouthEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t                V\n\t *\t\t           [ Target ]\n\t * ```\n\t *\n\t * **North east**\n\t *\n\t * * `northEastArrowSouthWest`\n\t *\n\t * ```\n\t *\t\t        +-----------------+\n\t *\t\t        |     Balloon     |\n\t *\t\t        +-----------------+\n\t *\t\t         V\n\t *\t\t[ Target ]\n\t * ```\n\t *\n\t * * `northEastArrowSouthMiddleWest`\n\t *\n\t * ```\n\t *\t\t     +-----------------+\n\t *\t\t     |     Balloon     |\n\t *\t\t     +-----------------+\n\t *\t\t         V\n\t *\t\t[ Target ]\n\t * ```\n\t *\n\t * * `northEastArrowSouth`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t         V\n\t *\t\t[ Target ]\n\t * ```\n\t *\n\t * * `northEastArrowSouthMiddleEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t             V\n\t *\t\t    [ Target ]\n\t * ```\n\t *\n\t * * `northEastArrowSouthEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t *\t\t                 V\n\t *\t\t        [ Target ]\n\t * ```\n\t *\n\t * **South**\n\t *\n\t * * `southArrowNorthWest`\n\t *\n\t * ```\n\t *\t\t[ Target ]\n\t *\t\t     ^\n\t *\t\t    +-----------------+\n\t *\t\t    |     Balloon     |\n\t *\t\t    +-----------------+\n\t * ```\n\t *\n\t * * `southArrowNorthMiddleWest`\n\t *\n\t * ```\n\t *\t\t   [ Target ]\n\t *\t\t        ^\n\t *\t\t    +-----------------+\n\t *\t\t    |     Balloon     |\n\t *\t\t    +-----------------+\n\t * ```\n\t *\n\t * * `southArrowNorth`\n\t *\n\t * ```\n\t *\t\t    [ Target ]\n\t *\t\t         ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southArrowNorthMiddleEast`\n\t *\n\t * ```\n\t *\t\t            [ Target ]\n\t *\t\t                 ^\n\t *\t\t   +-----------------+\n\t *\t\t   |     Balloon     |\n\t *\t\t   +-----------------+\n\t * ```\n\t *\n\t * * `southArrowNorthEast`\n\t *\n\t * ```\n\t *\t\t            [ Target ]\n\t *\t\t                 ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * **South west**\n\t *\n\t * * `southWestArrowNorthWest`\n\t *\n\t *\n\t * ```\n\t *\t\t [ Target ]\n\t *\t\t ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southWestArrowNorthMiddleWest`\n\t *\n\t * ```\n\t *\t\t     [ Target ]\n\t *\t\t     ^\n\t *\t\t +-----------------+\n\t *\t\t |     Balloon     |\n\t *\t\t +-----------------+\n\t * ```\n\t *\n\t * * `southWestArrowNorth`\n\t *\n\t * ```\n\t *\t\t         [ Target ]\n\t *\t\t         ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southWestArrowNorthMiddleEast`\n\t *\n\t * ```\n\t *\t\t              [ Target ]\n\t *\t\t              ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southWestArrowNorthEast`\n\t *\n\t * ```\n\t *\t\t                 [ Target ]\n\t *\t\t                 ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * **South east**\n\t *\n\t * * `southEastArrowNorthWest`\n\t *\n\t * ```\n\t *\t\t[ Target ]\n\t *\t\t         ^\n\t *\t\t        +-----------------+\n\t *\t\t        |     Balloon     |\n\t *\t\t        +-----------------+\n\t * ```\n\t *\n\t * * `southEastArrowNorthMiddleWest`\n\t *\n\t * ```\n\t *\t\t   [ Target ]\n\t *\t\t            ^\n\t *\t\t        +-----------------+\n\t *\t\t        |     Balloon     |\n\t *\t\t        +-----------------+\n\t * ```\n\t *\n\t * * `southEastArrowNorth`\n\t *\n\t * ```\n\t *\t\t[ Target ]\n\t *\t\t         ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southEastArrowNorthMiddleEast`\n\t *\n\t * ```\n\t *\t\t     [ Target ]\n\t *\t\t              ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * * `southEastArrowNorthEast`\n\t *\n\t * ```\n\t *\t\t        [ Target ]\n\t *\t\t                 ^\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * **West**\n\t *\n\t * * `westArrowEast`\n\t *\n\t * ```\n\t *\t\t+-----------------+\n\t *\t\t|     Balloon     |>[ Target ]\n\t *\t\t+-----------------+\n\t * ```\n\t *\n\t * **East**\n\t *\n\t * * `eastArrowWest`\n\t *\n\t * ```\n\t *\t\t           +-----------------+\n\t *\t\t[ Target ]<|     Balloon     |\n\t *\t\t           +-----------------+\n\t * ```\n\t *\n\t * **Sticky**\n\t *\n\t * * `viewportStickyNorth`\n\t *\n\t * ```\n\t *\t\t    +---------------------------+\n\t *\t\t    |        [ Target ]         |\n\t *\t\t    |                           |\n\t *\t\t+-----------------------------------+\n\t *\t\t|   |    +-----------------+    |   |\n\t *\t\t|   |    |     Balloon     |    |   |\n\t *\t\t|   |    +-----------------+    |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   |                           |   |\n\t *\t\t|   +---------------------------+   |\n\t *\t\t|             Viewport              |\n\t *\t\t+-----------------------------------+\n\t * ```\n\t *\n\t * See {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#attachTo}.\n\t *\n\t * Positioning functions must be compatible with {@link module:utils/dom/position~Position}.\n\t *\n\t * Default positioning functions with customized offsets can be generated using\n\t * {@link module:ui/panel/balloon/balloonpanelview~generatePositions}.\n\t *\n\t * The name that the position function returns will be reflected in the balloon panel's class that\n\t * controls the placement of the \"arrow\". See {@link #position} to learn more.\n\t */\n\tpublic static defaultPositions = generatePositions();\n}\n\n/**\n * Returns the DOM element for given object or null, if there is none,\n * e.g. when the passed object is a Rect instance or so.\n */\nfunction getDomElement( object: any ): HTMLElement | null {\n\tif ( isElement( object ) ) {\n\t\treturn object;\n\t}\n\n\tif ( isRange( object ) ) {\n\t\treturn object.commonAncestorContainer as any;\n\t}\n\n\tif ( typeof object == 'function' ) {\n\t\treturn getDomElement( object() );\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns available {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView}\n * {@link module:utils/dom/position~PositioningFunction positioning functions} adjusted by the specific offsets.\n *\n * @internal\n * @param options Options to generate positions. If not specified, this helper will simply return\n * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.defaultPositions}.\n * @param options.sideOffset A custom side offset (in pixels) of each position. If\n * not specified, {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.arrowSideOffset the default value}\n * will be used.\n * @param options.heightOffset A custom height offset (in pixels) of each position. If\n * not specified, {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.arrowHeightOffset the default value}\n * will be used.\n * @param options.stickyVerticalOffset A custom offset (in pixels) of the `viewportStickyNorth` positioning function.\n * If not specified, {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView.stickyVerticalOffset the default value}\n * will be used.\n * @param options.config Additional configuration of the balloon balloon panel view.\n * Currently only {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView#withArrow} is supported. Learn more\n * about {@link module:utils/dom/position~PositioningFunction positioning functions}.\n */\nexport function generatePositions( options: {\n\tsideOffset?: number;\n\theightOffset?: number;\n\tstickyVerticalOffset?: number;\n\tconfig?: object;\n} = {} ): Record<string, PositioningFunction> {\n\tconst {\n\t\tsideOffset = BalloonPanelView.arrowSideOffset,\n\t\theightOffset = BalloonPanelView.arrowHeightOffset,\n\t\tstickyVerticalOffset = BalloonPanelView.stickyVerticalOffset,\n\t\tconfig\n\t} = options;\n\n\treturn {\n\t\t// ------- North west\n\n\t\tnorthWestArrowSouthWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - sideOffset,\n\t\t\tname: 'arrow_sw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_smw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - balloonRect.width / 2,\n\t\t\tname: 'arrow_s',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_sme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthWestArrowSouthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_se',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- North\n\n\t\tnorthArrowSouthWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - sideOffset,\n\t\t\tname: 'arrow_sw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_smw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width / 2,\n\t\t\tname: 'arrow_s',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_sme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthArrowSouthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_se',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- North east\n\n\t\tnorthEastArrowSouthWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - sideOffset,\n\t\t\tname: 'arrow_sw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_smw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - balloonRect.width / 2,\n\t\t\tname: 'arrow_s',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_sme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tnorthEastArrowSouthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getNorthTop( targetRect, balloonRect ),\n\t\t\tleft: targetRect.right - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_se',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- South west\n\n\t\tsouthWestArrowNorthWest: targetRect => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - sideOffset,\n\t\t\tname: 'arrow_nw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_nmw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - balloonRect.width / 2,\n\t\t\tname: 'arrow_n',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_nme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthWestArrowNorthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_ne',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- South\n\n\t\tsouthArrowNorthWest: targetRect => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - sideOffset,\n\t\t\tname: 'arrow_nw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * 0.25 ) - sideOffset,\n\t\t\tname: 'arrow_nmw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width / 2,\n\t\t\tname: 'arrow_n',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - ( balloonRect.width * 0.75 ) + sideOffset,\n\t\t\tname: 'arrow_nme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthArrowNorthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_ne',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- South east\n\n\t\tsouthEastArrowNorthWest: targetRect => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - sideOffset,\n\t\t\tname: 'arrow_nw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorthMiddleWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .25 ) - sideOffset,\n\t\t\tname: 'arrow_nmw',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorth: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - balloonRect.width / 2,\n\t\t\tname: 'arrow_n',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorthMiddleEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - ( balloonRect.width * .75 ) + sideOffset,\n\t\t\tname: 'arrow_nme',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\tsouthEastArrowNorthEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: getSouthTop( targetRect ),\n\t\t\tleft: targetRect.right - balloonRect.width + sideOffset,\n\t\t\tname: 'arrow_ne',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- West\n\n\t\twestArrowEast: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: targetRect.top + targetRect.height / 2 - balloonRect.height / 2,\n\t\t\tleft: targetRect.left - balloonRect.width - heightOffset,\n\t\t\tname: 'arrow_e',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- East\n\n\t\teastArrowWest: ( targetRect, balloonRect ) => ( {\n\t\t\ttop: targetRect.top + targetRect.height / 2 - balloonRect.height / 2,\n\t\t\tleft: targetRect.right + heightOffset,\n\t\t\tname: 'arrow_w',\n\t\t\t...( config && { config } )\n\t\t} ),\n\n\t\t// ------- Sticky\n\n\t\tviewportStickyNorth: ( targetRect, balloonRect, viewportRect ) => {\n\t\t\tif ( !targetRect.getIntersection( viewportRect! ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\ttop: viewportRect!.top + stickyVerticalOffset,\n\t\t\t\tleft: targetRect.left + targetRect.width / 2 - balloonRect.width / 2,\n\t\t\t\tname: 'arrowless',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false,\n\t\t\t\t\t...config\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t};\n\n\t/**\n\t * Returns the top coordinate for positions starting with `north*`.\n\t *\n\t * @param targetRect A rect of the target.\n\t * @param balloonRect A rect of the balloon.\n\t */\n\tfunction getNorthTop( targetRect: Rect, balloonRect: Rect ) {\n\t\treturn targetRect.top - balloonRect.height - heightOffset;\n\t}\n\n\t/**\n\t * Returns the top coordinate for positions starting with `south*`.\n\t *\n\t * @param targetRect A rect of the target.\n\t */\n\tfunction getSouthTop( targetRect: Rect ) {\n\t\treturn targetRect.bottom + heightOffset;\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tooltip.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/tooltipmanager\n */\n\nimport View from './view';\nimport BalloonPanelView, { generatePositions } from './panel/balloon/balloonpanelview';\nimport type { EditorUIUpdateEvent } from './editorui/editorui';\n\nimport {\n\tDomEmitterMixin,\n\tResizeObserver,\n\tfirst,\n\tglobal,\n\tisVisible,\n\ttype EventInfo,\n\ttype PositioningFunction\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { Editor } from '@ckeditor/ckeditor5-core';\n\nimport { isElement, debounce, type DebouncedFunc } from 'lodash-es';\n\nimport '../theme/components/tooltip/tooltip.css';\n\nconst BALLOON_CLASS = 'ck-tooltip';\n\n/**\n * A tooltip manager class for the UI of the editor.\n *\n * **Note**: Most likely you do not have to use the `TooltipManager` API listed below in order to display tooltips. Popular\n * {@glink framework/architecture/ui-library UI components} support tooltips out-of-the-box via observable properties\n * (see {@link module:ui/button/buttonview~ButtonView#tooltip} and {@link module:ui/button/buttonview~ButtonView#tooltipPosition}).\n *\n * # Displaying tooltips\n *\n * To display a tooltip, set `data-cke-tooltip-text` attribute on any DOM element:\n *\n * ```ts\n * domElement.dataset.ckeTooltipText = 'My tooltip';\n * ```\n *\n * The tooltip will show up whenever the user moves the mouse over the element or the element gets focus in DOM.\n *\n * # Positioning tooltips\n *\n * To change the position of the tooltip, use the `data-cke-tooltip-position` attribute (`s`, `se`, `sw`, `n`, `e`, or `w`):\n *\n * ```ts\n * domElement.dataset.ckeTooltipText = 'Tooltip to the north';\n * domElement.dataset.ckeTooltipPosition = 'n';\n * ```\n *\n * # Disabling tooltips\n *\n * In order to disable the tooltip  temporarily, use the `data-cke-tooltip-disabled` attribute:\n *\n * ```ts\n * domElement.dataset.ckeTooltipText = 'Disabled. For now.';\n * domElement.dataset.ckeTooltipDisabled = 'true';\n * ```\n *\n * # Styling tooltips\n *\n * By default, the tooltip has `.ck-tooltip` class and its text inner `.ck-tooltip__text`.\n *\n * If your tooltip requires custom styling, using `data-cke-tooltip-class` attribute will add additional class to the balloon\n * displaying the tooltip:\n *\n * ```ts\n * domElement.dataset.ckeTooltipText = 'Tooltip with a red text';\n * domElement.dataset.ckeTooltipClass = 'my-class';\n * ```\n *\n * ```css\n * .ck.ck-tooltip.my-class { color: red }\n * ```\n *\n * **Note**: This class is a singleton. All editor instances re-use the same instance loaded by\n * {@link module:ui/editorui/editorui~EditorUI} of the first editor.\n */\nexport default class TooltipManager extends DomEmitterMixin() {\n\t/**\n\t * The view rendering text of the tooltip.\n\t */\n\tpublic readonly tooltipTextView!: View & { text: string };\n\n\t/**\n\t * The instance of the balloon panel that renders and positions the tooltip.\n\t */\n\tpublic readonly balloonPanelView!: BalloonPanelView;\n\n\t/**\n\t * A set of default {@link module:utils/dom/position~PositioningFunction positioning functions} used by the `TooltipManager`\n\t * to pin tooltips in different positions.\n\t */\n\tpublic static defaultBalloonPositions = generatePositions( {\n\t\theightOffset: 5,\n\t\tsideOffset: 13\n\t} );\n\n\t/**\n\t * Stores the reference to the DOM element the tooltip is attached to. `null` when there's no tooltip\n\t * in the UI.\n\t */\n\tprivate _currentElementWithTooltip: HTMLElement | null = null;\n\n\t/**\n\t * Stores the current tooltip position. `null` when there's no tooltip in the UI.\n\t */\n\tprivate _currentTooltipPosition: TooltipPosition | null = null;\n\n\t/**\n\t * An instance of the resize observer that keeps track on target element visibility,\n\t * when it hides the tooltip should also disappear.\n\t *\n\t * {@link module:core/editor/editorconfig~EditorConfig#balloonToolbar configuration}.\n\t */\n\tprivate _resizeObserver: ResizeObserver | null = null;\n\n\t/**\n\t * A debounced version of {@link #_pinTooltip}. Tooltips show with a delay to avoid flashing and\n\t * to improve the UX.\n\t */\n\tprivate _pinTooltipDebounced!: DebouncedFunc<( targetDomElement: HTMLElement, data: TooltipData ) => void>;\n\n\tprivate readonly _watchdogExcluded!: true;\n\n\t/**\n\t * A set of editors the single tooltip manager instance must listen to.\n\t * This is mostly to handle `EditorUI#update` listeners from individual editors.\n\t */\n\tprivate static _editors = new Set<Editor>();\n\n\t/**\n\t * A reference to the `TooltipManager` instance. The class is a singleton and as such,\n\t * successive attempts at creating instances should return this instance.\n\t */\n\tprivate static _instance: TooltipManager | null = null;\n\n\t/**\n\t * Creates an instance of the tooltip manager.\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\tTooltipManager._editors.add( editor );\n\n\t\t// TooltipManager must be a singleton. Multiple instances would mean multiple tooltips attached\n\t\t// to the same DOM element with data-cke-tooltip-* attributes.\n\t\tif ( TooltipManager._instance ) {\n\t\t\treturn TooltipManager._instance;\n\t\t}\n\n\t\tTooltipManager._instance = this;\n\n\t\tthis.tooltipTextView = new View( editor.locale ) as any;\n\t\tthis.tooltipTextView.set( 'text', '' );\n\t\tthis.tooltipTextView.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-tooltip__text'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: this.tooltipTextView.bindTemplate.to( 'text' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\tthis.balloonPanelView = new BalloonPanelView( editor.locale );\n\t\tthis.balloonPanelView.class = BALLOON_CLASS;\n\t\tthis.balloonPanelView.content.add( this.tooltipTextView );\n\n\t\tthis._pinTooltipDebounced = debounce( this._pinTooltip, 600 );\n\n\t\tthis.listenTo( global.document, 'mouseenter', this._onEnterOrFocus.bind( this ), { useCapture: true } );\n\t\tthis.listenTo( global.document, 'mouseleave', this._onLeaveOrBlur.bind( this ), { useCapture: true } );\n\n\t\tthis.listenTo( global.document, 'focus', this._onEnterOrFocus.bind( this ), { useCapture: true } );\n\t\tthis.listenTo( global.document, 'blur', this._onLeaveOrBlur.bind( this ), { useCapture: true } );\n\n\t\tthis.listenTo( global.document, 'scroll', this._onScroll.bind( this ), { useCapture: true } );\n\n\t\t// Because this class is a singleton, its only instance is shared across all editors and connects them through the reference.\n\t\t// This causes issues with the ContextWatchdog. When an error is thrown in one editor, the watchdog traverses the references\n\t\t// and (because of shared tooltip manager) figures that the error affects all editors and restarts them all.\n\t\t// This flag, excludes tooltip manager instance from the traversal and brings ContextWatchdog back to normal.\n\t\t// More in https://github.com/ckeditor/ckeditor5/issues/12292.\n\t\tthis._watchdogExcluded = true;\n\t}\n\n\t/**\n\t * Destroys the tooltip manager.\n\t *\n\t * **Note**: The manager singleton cannot be destroyed until all editors that use it are destroyed.\n\t *\n\t * @param editor The editor the manager was created for.\n\t */\n\tpublic destroy( editor: Editor ): void {\n\t\tconst editorBodyViewCollection = editor.ui.view && editor.ui.view.body;\n\n\t\tTooltipManager._editors.delete( editor );\n\t\tthis.stopListening( editor.ui );\n\n\t\t// Prevent the balloon panel from being destroyed in the EditorUI#destroy() cascade. It should be destroyed along\n\t\t// with the last editor only (https://github.com/ckeditor/ckeditor5/issues/12602).\n\t\tif ( editorBodyViewCollection && editorBodyViewCollection.has( this.balloonPanelView ) ) {\n\t\t\teditorBodyViewCollection.remove( this.balloonPanelView );\n\t\t}\n\n\t\tif ( !TooltipManager._editors.size ) {\n\t\t\tthis._unpinTooltip();\n\t\t\tthis.balloonPanelView.destroy();\n\t\t\tthis.stopListening();\n\n\t\t\tTooltipManager._instance = null;\n\t\t}\n\t}\n\n\t/**\n\t * Returns {@link #balloonPanelView} {@link module:utils/dom/position~PositioningFunction positioning functions} for a given position\n\t * name.\n\t *\n\t * @param position Name of the position (`s`, `se`, `sw`, `n`, `e`, or `w`).\n\t * @returns Positioning functions to be used by the {@link #balloonPanelView}.\n\t */\n\tpublic static getPositioningFunctions( position: TooltipPosition ): Array<PositioningFunction> {\n\t\tconst defaultPositions = TooltipManager.defaultBalloonPositions;\n\n\t\treturn {\n\t\t\t// South is most popular. We can use positioning heuristics to avoid clipping by the viewport with the sane fallback.\n\t\t\ts: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\t\tdefaultPositions.southArrowNorthWest\n\t\t\t],\n\t\t\tn: [ defaultPositions.northArrowSouth ],\n\t\t\te: [ defaultPositions.eastArrowWest ],\n\t\t\tw: [ defaultPositions.westArrowEast ],\n\t\t\tsw: [ defaultPositions.southArrowNorthEast ],\n\t\t\tse: [ defaultPositions.southArrowNorthWest ]\n\t\t}[ position ];\n\t}\n\n\t/**\n\t * Handles displaying tooltips on `mouseenter` and `focus` in DOM.\n\t *\n\t * @param evt An object containing information about the fired event.\n\t * @param domEvent The DOM event.\n\t */\n\tprivate _onEnterOrFocus( evt: unknown, { target }: any ) {\n\t\tconst elementWithTooltipAttribute = getDescendantWithTooltip( target );\n\n\t\t// Abort when there's no descendant needing tooltip.\n\t\tif ( !elementWithTooltipAttribute ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Abort to avoid flashing when, for instance:\n\t\t// * a tooltip is displayed for a focused element, then the same element gets mouseentered,\n\t\t// * a tooltip is displayed for an element via mouseenter, then the focus moves to the same element.\n\t\tif ( elementWithTooltipAttribute === this._currentElementWithTooltip ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._unpinTooltip();\n\n\t\tthis._pinTooltipDebounced( elementWithTooltipAttribute, getTooltipData( elementWithTooltipAttribute ) );\n\t}\n\n\t/**\n\t * Handles hiding tooltips on `mouseleave` and `blur` in DOM.\n\t *\n\t * @param evt An object containing information about the fired event.\n\t * @param domEvent The DOM event.\n\t */\n\tprivate _onLeaveOrBlur( evt: EventInfo, { target, relatedTarget }: any ) {\n\t\tif ( evt.name === 'mouseleave' ) {\n\t\t\t// Don't act when the event does not concern a DOM element (e.g. a mouseleave out of an entire document),\n\t\t\tif ( !isElement( target ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If a tooltip is currently visible, don't act for a targets other than the one it is attached to.\n\t\t\t// For instance, a random mouseleave far away in the page should not unpin the tooltip that was pinned because\n\t\t\t// of a previous focus. Only leaving the same element should hide the tooltip.\n\t\t\tif ( this._currentElementWithTooltip && target !== this._currentElementWithTooltip ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst descendantWithTooltip = getDescendantWithTooltip( target );\n\t\t\tconst relatedDescendantWithTooltip = getDescendantWithTooltip( relatedTarget );\n\n\t\t\t// Unpin when the mouse was leaving element with a tooltip to a place which does not have or has a different tooltip.\n\t\t\t// Note that this should happen whether the tooltip is already visible or not, for instance, it could be invisible but queued\n\t\t\t// (debounced): it should get canceled.\n\t\t\tif ( descendantWithTooltip && descendantWithTooltip !== relatedDescendantWithTooltip ) {\n\t\t\t\tthis._unpinTooltip();\n\t\t\t}\n\t\t}\n\t\telse {\n\t\t\t// If a tooltip is currently visible, don't act for a targets other than the one it is attached to.\n\t\t\t// For instance, a random blur in the web page should not unpin the tooltip that was pinned because of a previous mouseenter.\n\t\t\tif ( this._currentElementWithTooltip && target !== this._currentElementWithTooltip ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Note that unpinning should happen whether the tooltip is already visible or not, for instance, it could be invisible but\n\t\t\t// queued (debounced): it should get canceled (e.g. quick focus then quick blur using the keyboard).\n\t\t\tthis._unpinTooltip();\n\t\t}\n\t}\n\n\t/**\n\t * Handles hiding tooltips on `scroll` in DOM.\n\t *\n\t * @param evt An object containing information about the fired event.\n\t * @param domEvent The DOM event.\n\t */\n\tprivate _onScroll( evt: unknown, { target }: any ) {\n\t\t// No tooltip, no reason to react on scroll.\n\t\tif ( !this._currentElementWithTooltip ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// When scrolling a container that has both the balloon and the current element (common ancestor), the balloon can remain\n\t\t// visible (e.g. scrolling ≤body>). Otherwise, to avoid glitches (clipping, lagging) better just hide the tooltip.\n\t\t// Also, don't do anything when scrolling an unrelated DOM element that has nothing to do with the current element and the balloon.\n\t\tif ( target.contains( this.balloonPanelView.element ) && target.contains( this._currentElementWithTooltip ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._unpinTooltip();\n\t}\n\n\t/**\n\t * Pins the tooltip to a specific DOM element.\n\t *\n\t * @param options.text Text of the tooltip to display.\n\t * @param options.position The position of the tooltip.\n\t * @param options.cssClass Additional CSS class of the balloon with the tooltip.\n\t */\n\tprivate _pinTooltip(\n\t\ttargetDomElement: HTMLElement,\n\t\t{ text, position, cssClass }: TooltipData\n\t): void {\n\t\t// Use the body collection of the first editor.\n\t\tconst bodyViewCollection = first( TooltipManager._editors.values() )!.ui.view.body;\n\n\t\tif ( !bodyViewCollection.has( this.balloonPanelView ) ) {\n\t\t\tbodyViewCollection.add( this.balloonPanelView );\n\t\t}\n\n\t\tthis.tooltipTextView.text = text;\n\n\t\tthis.balloonPanelView.pin( {\n\t\t\ttarget: targetDomElement,\n\t\t\tpositions: TooltipManager.getPositioningFunctions( position )\n\t\t} );\n\n\t\tthis._resizeObserver = new ResizeObserver( targetDomElement, () => {\n\t\t\t// The ResizeObserver will call its callback when the target element hides and the tooltip\n\t\t\t// should also disappear (https://github.com/ckeditor/ckeditor5/issues/12492).\n\t\t\tif ( !isVisible( targetDomElement ) ) {\n\t\t\t\tthis._unpinTooltip();\n\t\t\t}\n\t\t} );\n\n\t\tthis.balloonPanelView.class = [ BALLOON_CLASS, cssClass ]\n\t\t\t.filter( className => className )\n\t\t\t.join( ' ' );\n\n\t\t// Start responding to changes in editor UI or content layout. For instance, when collaborators change content\n\t\t// and a contextual toolbar attached to a content starts to move (and so should move the tooltip).\n\t\t// Note: Using low priority to let other listeners that position contextual toolbars etc. to react first.\n\t\tfor ( const editor of TooltipManager._editors ) {\n\t\t\tthis.listenTo<EditorUIUpdateEvent>( editor.ui, 'update', this._updateTooltipPosition.bind( this ), { priority: 'low' } );\n\t\t}\n\n\t\tthis._currentElementWithTooltip = targetDomElement;\n\t\tthis._currentTooltipPosition = position;\n\t}\n\n\t/**\n\t * Unpins the tooltip and cancels all queued pinning.\n\t */\n\tprivate _unpinTooltip() {\n\t\tthis._pinTooltipDebounced.cancel();\n\n\t\tthis.balloonPanelView.unpin();\n\n\t\tfor ( const editor of TooltipManager._editors ) {\n\t\t\tthis.stopListening( editor.ui, 'update' );\n\t\t}\n\n\t\tthis._currentElementWithTooltip = null;\n\t\tthis._currentTooltipPosition = null;\n\n\t\tif ( this._resizeObserver ) {\n\t\t\tthis._resizeObserver.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Updates the position of the tooltip so it stays in sync with the element it is pinned to.\n\t *\n\t * Hides the tooltip when the element is no longer visible in DOM.\n\t */\n\tprivate _updateTooltipPosition() {\n\t\t// This could happen if the tooltip was attached somewhere in a contextual content toolbar and the toolbar\n\t\t// disappeared (e.g. removed an image).\n\t\tif ( !isVisible( this._currentElementWithTooltip ) ) {\n\t\t\tthis._unpinTooltip();\n\n\t\t\treturn;\n\t\t}\n\n\t\tthis.balloonPanelView.pin( {\n\t\t\ttarget: this._currentElementWithTooltip!,\n\t\t\tpositions: TooltipManager.getPositioningFunctions( this._currentTooltipPosition! )\n\t\t} );\n\t}\n}\n\nexport type TooltipPosition = 's' | 'n' | 'e' | 'w' | 'sw' | 'se';\n\nfunction getDescendantWithTooltip( element: HTMLElement ) {\n\tif ( !isElement( element ) ) {\n\t\treturn null;\n\t}\n\n\treturn element.closest( '[data-cke-tooltip-text]:not([data-cke-tooltip-disabled])' ) as HTMLElement;\n}\n\ninterface TooltipData {\n\ttext: string;\n\tposition: TooltipPosition;\n\tcssClass: string;\n}\n\nfunction getTooltipData( element: HTMLElement ): TooltipData {\n\treturn {\n\t\ttext: element.dataset.ckeTooltipText!,\n\t\tposition: ( element.dataset.ckeTooltipPosition || 's' ) as TooltipPosition,\n\t\tcssClass: element.dataset.ckeTooltipClass || ''\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editorui/editorui\n */\n\n/* globals console */\n\nimport ComponentFactory from '../componentfactory';\nimport TooltipManager from '../tooltipmanager';\n\nimport type EditorUIView from './editoruiview';\nimport type ToolbarView from '../toolbar/toolbarview';\nimport type { UIViewRenderEvent } from '../view';\n\nimport {\n\tObservableMixin,\n\tisVisible,\n\tFocusTracker\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { Editor } from '@ckeditor/ckeditor5-core';\nimport type { ViewDocumentLayoutChangedEvent } from '@ckeditor/ckeditor5-engine';\n\n/**\n * A class providing the minimal interface that is required to successfully bootstrap any editor UI.\n */\nexport default abstract class EditorUI extends ObservableMixin() {\n\t/**\n\t * The editor that the UI belongs to.\n\t */\n\tpublic readonly editor: Editor;\n\n\t/**\n\t * An instance of the {@link module:ui/componentfactory~ComponentFactory}, a registry used by plugins\n\t * to register factories of specific UI components.\n\t */\n\tpublic readonly componentFactory: ComponentFactory;\n\n\t/**\n\t * Stores the information about the editor UI focus and propagates it so various plugins and components\n\t * are unified as a focus group.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * Manages the tooltips displayed on mouseover and focus across the UI.\n\t */\n\tpublic readonly tooltipManager: TooltipManager;\n\n\t/**\n\t * Indicates the UI is ready. Set `true` after {@link #event:ready} event is fired.\n\t *\n\t * @readonly\n\t * @default false\n\t */\n\tpublic isReady: boolean = false;\n\n\tpublic abstract get view(): EditorUIView;\n\n\t/**\n\t * Stores viewport offsets from every direction.\n\t *\n\t * Viewport offset can be used to constrain balloons or other UI elements into an element smaller than the viewport.\n\t * This can be useful if there are any other absolutely positioned elements that may interfere with editor UI.\n\t *\n\t * Example `editor.ui.viewportOffset` returns:\n\t *\n\t * ```js\n\t * {\n\t * \ttop: 50,\n\t * \tright: 50,\n\t * \tbottom: 50,\n\t * \tleft: 50\n\t * }\n\t * ```\n\t *\n\t * This property can be overriden after editor already being initialized:\n\t *\n\t * ```js\n\t * editor.ui.viewportOffset = {\n\t * \ttop: 100,\n\t * \tright: 0,\n\t * \tbottom: 0,\n\t * \tleft: 0\n\t * };\n\t * ```\n\t *\n\t * @observable\n\t */\n\tpublic declare viewportOffset: {\n\t\tleft?: number;\n\t\tright?: number;\n\t\ttop?: number;\n\t\tbottom?: number;\n\t};\n\n\t/**\n\t * Stores all editable elements used by the editor instance.\n\t */\n\tprivate _editableElementsMap = new Map<string, HTMLElement>();\n\n\t/**\n\t * All available & focusable toolbars.\n\t */\n\tprivate _focusableToolbarDefinitions: Array<FocusableToolbarDefinition> = [];\n\n\t/**\n\t * Creates an instance of the editor UI class.\n\t *\n\t * @param editor The editor instance.\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper();\n\n\t\tthis.editor = editor;\n\t\tthis.componentFactory = new ComponentFactory( editor );\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.tooltipManager = new TooltipManager( editor );\n\n\t\tthis.set( 'viewportOffset', this._readViewportOffsetFromConfig() );\n\n\t\tthis.once<EditorUIReadyEvent>( 'ready', () => {\n\t\t\tthis.isReady = true;\n\t\t} );\n\n\t\t// Informs UI components that should be refreshed after layout change.\n\t\tthis.listenTo<ViewDocumentLayoutChangedEvent>( editor.editing.view.document, 'layoutChanged', () => this.update() );\n\n\t\tthis._initFocusTracking();\n\t}\n\n\t/**\n\t * The main (outermost) DOM element of the editor UI.\n\t *\n\t * For example, in {@link module:editor-classic/classiceditor~ClassicEditor} it is a `<div>` which\n\t * wraps the editable element and the toolbar. In {@link module:editor-inline/inlineeditor~InlineEditor}\n\t * it is the editable element itself (as there is no other wrapper). However, in\n\t * {@link module:editor-decoupled/decouplededitor~DecoupledEditor} it is set to `null` because this editor does not\n\t * come with a single \"main\" HTML element (its editable element and toolbar are separate).\n\t *\n\t * This property can be understood as a shorthand for retrieving the element that a specific editor integration\n\t * considers to be its main DOM element.\n\t */\n\tpublic get element(): HTMLElement | null {\n\t\treturn null;\n\t}\n\n\t/**\n\t * Fires the {@link module:ui/editorui/editorui~EditorUI#event:update `update`} event.\n\t *\n\t * This method should be called when the editor UI (e.g. positions of its balloons) needs to be updated due to\n\t * some environmental change which CKEditor 5 is not aware of (e.g. resize of a container in which it is used).\n\t */\n\tpublic update(): void {\n\t\tthis.fire<EditorUIUpdateEvent>( 'update' );\n\t}\n\n\t/**\n\t * Destroys the UI.\n\t */\n\tpublic destroy(): void {\n\t\tthis.stopListening();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.tooltipManager.destroy( this.editor );\n\n\t\t// Clean–up the references to the CKEditor instance stored in the native editable DOM elements.\n\t\tfor ( const domElement of this._editableElementsMap.values() ) {\n\t\t\t( domElement as any ).ckeditorInstance = null;\n\t\t\tthis.editor.keystrokes.stopListening( domElement );\n\t\t}\n\n\t\tthis._editableElementsMap = new Map();\n\t\tthis._focusableToolbarDefinitions = [];\n\t}\n\n\t/**\n\t * Stores the native DOM editable element used by the editor under a unique name.\n\t *\n\t * Also, registers the element in the editor to maintain the accessibility of the UI. When the user is editing text in a focusable\n\t * editable area, they can use the <kbd>Alt</kbd> + <kbd>F10</kbd> keystroke to navigate over editor toolbars. See {@link #addToolbar}.\n\t *\n\t * @param rootName The unique name of the editable element.\n\t * @param domElement The native DOM editable element.\n\t */\n\tpublic setEditableElement( rootName: string, domElement: HTMLElement ): void {\n\t\tthis._editableElementsMap.set( rootName, domElement );\n\n\t\t// Put a reference to the CKEditor instance in the editable native DOM element.\n\t\t// It helps 3rd–party software (browser extensions, other libraries) access and recognize\n\t\t// CKEditor 5 instances (editing roots) and use their API (there is no global editor\n\t\t// instance registry).\n\t\tif ( !( domElement as any ).ckeditorInstance ) {\n\t\t\t( domElement as any ).ckeditorInstance = this.editor;\n\t\t}\n\n\t\t// Register the element, so it becomes available for Alt+F10 and Esc navigation.\n\t\tthis.focusTracker.add( domElement );\n\n\t\tconst setUpKeystrokeHandler = () => {\n\t\t\t// The editing view of the editor is already listening to keystrokes from DOM roots (see: KeyObserver).\n\t\t\t// Do not duplicate listeners.\n\t\t\tif ( this.editor.editing.view.getDomRoot( rootName ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.keystrokes.listenTo( domElement );\n\t\t};\n\n\t\t// For editable elements set by features after EditorUI is ready (e.g. source editing).\n\t\tif ( this.isReady ) {\n\t\t\tsetUpKeystrokeHandler();\n\t\t}\n\t\t// For editable elements set while the editor is being created (e.g. DOM roots).\n\t\telse {\n\t\t\tthis.once<EditorUIReadyEvent>( 'ready', setUpKeystrokeHandler );\n\t\t}\n\t}\n\n\t/**\n\t * Removes the editable from the editor UI. Removes all handlers added by {@link #setEditableElement}.\n\t *\n\t * @param rootName The name of the editable element to remove.\n\t */\n\tpublic removeEditableElement( rootName: string ): void {\n\t\tconst domElement = this._editableElementsMap.get( rootName );\n\n\t\tif ( !domElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._editableElementsMap.delete( rootName );\n\n\t\tthis.editor.keystrokes.stopListening( domElement );\n\t\tthis.focusTracker.remove( domElement );\n\n\t\t( domElement as any ).ckeditorInstance = null;\n\t}\n\n\t/**\n\t * Returns the editable editor element with the given name or null if editable does not exist.\n\t *\n\t * @param rootName The editable name.\n\t */\n\tpublic getEditableElement( rootName: string = 'main' ): HTMLElement | undefined {\n\t\treturn this._editableElementsMap.get( rootName );\n\t}\n\n\t/**\n\t * Returns array of names of all editor editable elements.\n\t */\n\tpublic getEditableElementsNames(): IterableIterator<string> {\n\t\treturn this._editableElementsMap.keys();\n\t}\n\n\t/**\n\t * Adds a toolbar to the editor UI. Used primarily to maintain the accessibility of the UI.\n\t *\n\t * Focusable toolbars can be accessed (focused) by users by pressing the <kbd>Alt</kbd> + <kbd>F10</kbd> keystroke.\n\t * Successive keystroke presses navigate over available toolbars.\n\t *\n\t * @param toolbarView A instance of the toolbar to be registered.\n\t */\n\tpublic addToolbar( toolbarView: ToolbarView, options: FocusableToolbarOptions = {} ): void {\n\t\tif ( toolbarView.isRendered ) {\n\t\t\tthis.focusTracker.add( toolbarView.element! );\n\t\t\tthis.editor.keystrokes.listenTo( toolbarView.element! );\n\t\t} else {\n\t\t\ttoolbarView.once<UIViewRenderEvent>( 'render', () => {\n\t\t\t\tthis.focusTracker.add( toolbarView.element! );\n\t\t\t\tthis.editor.keystrokes.listenTo( toolbarView.element! );\n\t\t\t} );\n\t\t}\n\n\t\tthis._focusableToolbarDefinitions.push( { toolbarView, options } );\n\t}\n\n\t/**\n\t * Stores all editable elements used by the editor instance.\n\t *\n\t * @deprecated\n\t */\n\tprotected get _editableElements(): unknown {\n\t\t/**\n\t\t * The {@link module:ui/editorui/editorui~EditorUI#_editableElements `EditorUI#_editableElements`} property has been\n\t\t * deprecated and will be removed in the near future. Please use\n\t\t * {@link module:ui/editorui/editorui~EditorUI#setEditableElement `setEditableElement()`} and\n\t\t * {@link module:ui/editorui/editorui~EditorUI#getEditableElement `getEditableElement()`} methods instead.\n\t\t *\n\t\t * @error editor-ui-deprecated-editable-elements\n\t\t * @param editorUI Editor UI instance the deprecated property belongs to.\n\t\t */\n\t\tconsole.warn(\n\t\t\t'editor-ui-deprecated-editable-elements: ' +\n\t\t\t'The EditorUI#_editableElements property has been deprecated and will be removed in the near future.',\n\t\t\t{ editorUI: this } );\n\n\t\treturn this._editableElementsMap;\n\t}\n\n\t/**\n\t * Returns viewport offsets object:\n\t *\n\t * ```js\n\t * {\n\t * \ttop: Number,\n\t * \tright: Number,\n\t * \tbottom: Number,\n\t * \tleft: Number\n\t * }\n\t * ```\n\t *\n\t * Only top property is currently supported.\n\t */\n\tprivate _readViewportOffsetFromConfig() {\n\t\tconst editor = this.editor;\n\t\tconst viewportOffsetConfig = editor.config.get( 'ui.viewportOffset' );\n\n\t\tif ( viewportOffsetConfig ) {\n\t\t\treturn viewportOffsetConfig;\n\t\t}\n\n\t\t// Not present in EditorConfig type, because it's legacy. Hence the `as` expression.\n\t\tconst legacyOffsetConfig = editor.config.get( 'toolbar.viewportTopOffset' ) as number | undefined;\n\n\t\t// Fall back to deprecated toolbar config.\n\t\tif ( legacyOffsetConfig ) {\n\t\t\t/**\n\t\t\t * The {@link module:core/editor/editorconfig~EditorConfig#toolbar `EditorConfig#toolbar.viewportTopOffset`}\n\t\t\t * property has been deprecated and will be removed in the near future. Please use\n\t\t\t * {@link module:core/editor/editorconfig~EditorConfig#ui `EditorConfig#ui.viewportOffset`} instead.\n\t\t\t *\n\t\t\t * @error editor-ui-deprecated-viewport-offset-config\n\t\t\t */\n\t\t\tconsole.warn(\n\t\t\t\t'editor-ui-deprecated-viewport-offset-config: ' +\n\t\t\t\t'The `toolbar.vieportTopOffset` configuration option is deprecated. ' +\n\t\t\t\t'It will be removed from future CKEditor versions. Use `ui.viewportOffset.top` instead.'\n\t\t\t);\n\n\t\t\treturn { top: legacyOffsetConfig };\n\t\t}\n\n\t\t// More keys to come in the future.\n\t\treturn { top: 0 };\n\t}\n\n\t/**\n\t * Starts listening for <kbd>Alt</kbd> + <kbd>F10</kbd> and <kbd>Esc</kbd> keystrokes in the context of focusable\n\t * {@link #setEditableElement editable elements} and {@link #addToolbar toolbars}\n\t * to allow users navigate across the UI.\n\t */\n\tprivate _initFocusTracking(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\tlet lastFocusedForeignElement: HTMLElement | null;\n\t\tlet candidateDefinitions: Array<FocusableToolbarDefinition>;\n\n\t\t// Focus the next focusable toolbar on <kbd>Alt</kbd> + <kbd>F10</kbd>.\n\t\teditor.keystrokes.set( 'Alt+F10', ( data, cancel ) => {\n\t\t\tconst focusedElement = this.focusTracker.focusedElement as HTMLElement;\n\n\t\t\t// Focus moved out of a DOM element that\n\t\t\t// * is not a toolbar,\n\t\t\t// * does not belong to the editing view (e.g. source editing).\n\t\t\tif (\n\t\t\t\tArray.from( this._editableElementsMap.values() ).includes( focusedElement ) &&\n\t\t\t\t!Array.from( editingView.domRoots.values() ).includes( focusedElement )\n\t\t\t) {\n\t\t\t\tlastFocusedForeignElement = focusedElement;\n\t\t\t}\n\n\t\t\tconst currentFocusedToolbarDefinition = this._getCurrentFocusedToolbarDefinition();\n\n\t\t\t// * When focusing a toolbar for the first time, set the array of definitions for successive presses of Alt+F10.\n\t\t\t// This ensures, the navigation works always the same and no pair of toolbars takes over\n\t\t\t// (e.g. image and table toolbars when a selected image is inside a cell).\n\t\t\t// * It could be that the focus went to the toolbar by clicking a toolbar item (e.g. a dropdown). In this case,\n\t\t\t// there were no candidates so they must be obtained (#12339).\n\t\t\tif ( !currentFocusedToolbarDefinition || !candidateDefinitions ) {\n\t\t\t\tcandidateDefinitions = this._getFocusableCandidateToolbarDefinitions();\n\t\t\t}\n\n\t\t\t// In a single Alt+F10 press, check all candidates but if none were focused, don't go any further.\n\t\t\t// This prevents an infinite loop.\n\t\t\tfor ( let i = 0; i < candidateDefinitions.length; i++ ) {\n\t\t\t\tconst candidateDefinition = candidateDefinitions.shift()!;\n\n\t\t\t\t// Put the first definition to the back of the array. This allows circular navigation over all toolbars\n\t\t\t\t// on successive presses of Alt+F10.\n\t\t\t\tcandidateDefinitions.push( candidateDefinition );\n\n\t\t\t\t// Don't focus the same toolbar again. If you did, this would move focus from the nth focused toolbar item back to the\n\t\t\t\t// first item as per ToolbarView#focus() if the user navigated inside the toolbar.\n\t\t\t\tif (\n\t\t\t\t\tcandidateDefinition !== currentFocusedToolbarDefinition &&\n\t\t\t\t\tthis._focusFocusableCandidateToolbar( candidateDefinition )\n\t\t\t\t) {\n\t\t\t\t\t// Clean up after a current visible toolbar when switching to the next one.\n\t\t\t\t\tif ( currentFocusedToolbarDefinition && currentFocusedToolbarDefinition.options.afterBlur ) {\n\t\t\t\t\t\tcurrentFocusedToolbarDefinition.options.afterBlur();\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Blur the focused toolbar on <kbd>Esc</kbd> and bring the focus back to its origin.\n\t\teditor.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tconst focusedToolbarDef = this._getCurrentFocusedToolbarDefinition();\n\n\t\t\tif ( !focusedToolbarDef ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Bring focus back to where it came from before focusing the toolbar:\n\t\t\t// 1. If it came from outside the engine view (e.g. source editing), move it there.\n\t\t\tif ( lastFocusedForeignElement ) {\n\t\t\t\tlastFocusedForeignElement.focus();\n\t\t\t\tlastFocusedForeignElement = null;\n\t\t\t}\n\t\t\t// 2. There are two possibilities left:\n\t\t\t//   2.1. It could be that the focus went from an editable element in the view (root or nested).\n\t\t\t//   2.2. It could be the focus went straight to the toolbar before even focusing the editing area.\n\t\t\t// In either case, just focus the view editing. The focus will land where it belongs.\n\t\t\telse {\n\t\t\t\teditor.editing.view.focus();\n\t\t\t}\n\n\t\t\t// Clean up after the toolbar if there is anything to do there.\n\t\t\tif ( focusedToolbarDef.options.afterBlur ) {\n\t\t\t\tfocusedToolbarDef.options.afterBlur();\n\t\t\t}\n\n\t\t\tcancel();\n\t\t} );\n\t}\n\n\t/**\n\t * Returns definitions of toolbars that could potentially be focused, sorted by their importance for the user.\n\t *\n\t * Focusable toolbars candidates are either:\n\t * * already visible,\n\t * * have `beforeFocus()` set in their {@link module:ui/editorui/editorui~FocusableToolbarDefinition definition} that suggests that\n\t * they might show up when called. Keep in mind that determining whether a toolbar will show up (and become focusable) is impossible\n\t * at this stage because it depends on its implementation, that in turn depends on the editing context (selection).\n\t *\n\t * **Note**: Contextual toolbars take precedence over regular toolbars.\n\t */\n\tprivate _getFocusableCandidateToolbarDefinitions(): Array<FocusableToolbarDefinition> {\n\t\tconst definitions: Array<FocusableToolbarDefinition> = [];\n\n\t\tfor ( const toolbarDef of this._focusableToolbarDefinitions ) {\n\t\t\tconst { toolbarView, options } = toolbarDef;\n\n\t\t\tif ( isVisible( toolbarView.element ) || options.beforeFocus ) {\n\t\t\t\tdefinitions.push( toolbarDef );\n\t\t\t}\n\t\t}\n\n\t\t// Contextual and already visible toolbars have higher priority. If both are true, the toolbar will always focus first.\n\t\t// For instance, a selected widget toolbar vs inline editor toolbar: both are visible but the widget toolbar is contextual.\n\t\tdefinitions.sort( ( defA, defB ) => getToolbarDefinitionWeight( defA ) - getToolbarDefinitionWeight( defB ) );\n\n\t\treturn definitions;\n\t}\n\n\t/**\n\t * Returns a definition of the toolbar that is currently visible and focused (one of its children has focus).\n\t *\n\t * `null` is returned when no toolbar is currently focused.\n\t */\n\tprivate _getCurrentFocusedToolbarDefinition(): FocusableToolbarDefinition | null {\n\t\tfor ( const definition of this._focusableToolbarDefinitions ) {\n\t\t\tif ( definition.toolbarView.element && definition.toolbarView.element.contains( this.focusTracker.focusedElement ) ) {\n\t\t\t\treturn definition;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Focuses a focusable toolbar candidate using its definition.\n\t *\n\t * @param candidateToolbarDefinition A definition of the toolbar to focus.\n\t * @returns `true` when the toolbar candidate was focused. `false` otherwise.\n\t */\n\tprivate _focusFocusableCandidateToolbar( candidateToolbarDefinition: FocusableToolbarDefinition ): boolean {\n\t\tconst { toolbarView, options: { beforeFocus } } = candidateToolbarDefinition;\n\n\t\tif ( beforeFocus ) {\n\t\t\tbeforeFocus();\n\t\t}\n\n\t\t// If it didn't show up after beforeFocus(), it's not focusable at all.\n\t\tif ( !isVisible( toolbarView.element ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\ttoolbarView.focus();\n\n\t\treturn true;\n\t}\n}\n\n/**\n * Fired when the editor UI is ready.\n *\n * Fired before {@link module:engine/controller/datacontroller~DataController#event:ready}.\n *\n * @eventName ~EditorUI#ready\n */\nexport type EditorUIReadyEvent = {\n\tname: 'ready';\n\targs: [];\n};\n\n/**\n * Fired whenever the UI (all related components) should be refreshed.\n *\n * **Note:**: The event is fired after each {@link module:engine/view/document~Document#event:layoutChanged}.\n * It can also be fired manually via the {@link module:ui/editorui/editorui~EditorUI#update} method.\n *\n * @eventName ~EditorUI#update\n */\nexport type EditorUIUpdateEvent = {\n\tname: 'update';\n\targs: [];\n};\n\n/**\n * A definition of a focusable toolbar. Used by {@link module:ui/editorui/editorui~EditorUI#addToolbar}.\n */\nexport interface FocusableToolbarDefinition {\n\n\t/**\n\t * An instance of a focusable toolbar view.\n\t */\n\ttoolbarView: ToolbarView;\n\n\t/**\n\t * Options of a focusable toolbar view:\n\t *\n\t * * `isContextual`: Marks the higher priority toolbar. For example when there are 2 visible toolbars,\n\t * it allows to distinguish which toolbar should be focused first after the `alt+f10` keystroke\n\t * * `beforeFocus`: A callback executed before the `ToolbarView` gains focus upon the `Alt+F10` keystroke.\n\t * * `afterBlur`: A callback executed after `ToolbarView` loses focus upon `Esc` keystroke but before\n\t * the focus goes back to the `origin`.\n\t */\n\toptions: FocusableToolbarOptions;\n}\n\nexport interface FocusableToolbarOptions {\n\n\t/**\n\t * Set `true` if the toolbar is attached to the content of the editor. Such toolbar takes\n\t * a precedence over other toolbars when a user pressed <kbd>Alt</kbd> + <kbd>F10</kbd>.\n\t */\n\tisContextual?: boolean;\n\n\t/**\n\t * Specify a callback executed before the toolbar instance DOM element gains focus\n\t * upon the <kbd>Alt</kbd> + <kbd>F10</kbd> keystroke.\n\t */\n\tbeforeFocus?: () => void;\n\n\t/**\n\t * Specify a callback executed after the toolbar instance DOM element loses focus upon\n\t * <kbd>Esc</kbd> keystroke but before the focus goes back to the {@link ~EditorUI#setEditableElement editable element}.\n\t */\n\tafterBlur?: () => void;\n}\n\n/**\n * Returns a number (weight) for a toolbar definition. Visible toolbars have a higher priority and so do\n * contextual toolbars (displayed in the context of a content, for instance, an image toolbar).\n *\n * A standard invisible toolbar is the heaviest. A visible contextual toolbar is the lightest.\n *\n * @param toolbarDef A toolbar definition to be weighted.\n */\nfunction getToolbarDefinitionWeight( toolbarDef: FocusableToolbarDefinition ): number {\n\tconst { toolbarView, options } = toolbarDef;\n\tlet weight = 10;\n\n\t// Prioritize already visible toolbars. They should get focused first.\n\tif ( isVisible( toolbarView.element ) ) {\n\t\tweight--;\n\t}\n\n\t// Prioritize contextual toolbars. They are displayed at the selection.\n\tif ( options.isContextual ) {\n\t\tweight--;\n\t}\n\n\treturn weight;\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./editorui.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editorui/editoruiview\n */\n\nimport View from '../view';\nimport BodyCollection from './bodycollection';\nimport type EditableUIView from '../editableui/editableuiview';\n\nimport type { Locale, LocaleTranslate } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/editorui/editorui.css';\n\n/**\n * The editor UI view class. Base class for the editor main views.\n */\nexport default abstract class EditorUIView extends View {\n\t/**\n\t * Collection of the child views, detached from the DOM\n\t * structure of the editor, like panels, icons etc.\n\t */\n\tpublic readonly body: BodyCollection;\n\n\tdeclare public locale: Locale;\n\tdeclare public t: LocaleTranslate;\n\n\tpublic abstract get editable(): EditableUIView;\n\n\t/**\n\t * Creates an instance of the editor UI view class.\n\t *\n\t * @param locale The locale instance.\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.body = new BodyCollection( locale );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.body.attachToDom();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tthis.body.detachFromDom();\n\n\t\treturn super.destroy();\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./label.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/label/labelview\n */\n\nimport View from '../view';\n\nimport { uid, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/label/label.css';\n\n/**\n * The label view class.\n */\nexport default class LabelView extends View {\n\t/**\n\t * An unique id of the label. It can be used by other UI components to reference\n\t * the label, for instance, using the `aria-describedby` DOM attribute.\n\t */\n\tpublic readonly id: string;\n\n\t/**\n\t * The text of the label.\n\t *\n\t * @observable\n\t */\n\tdeclare public text: string | undefined;\n\n\t/**\n\t * The `for` attribute of the label (i.e. to pair with an `<input>` element).\n\t *\n\t * @observable\n\t */\n\tdeclare public for: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.set( 'text', undefined );\n\t\tthis.set( 'for', undefined );\n\n\t\tthis.id = `ck-editor__label_${ uid() }`;\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'label',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-label'\n\t\t\t\t],\n\t\t\t\tid: this.id,\n\t\t\t\tfor: bind.to( 'for' )\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( 'text' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editableui/editableuiview\n */\n\nimport View from '../view';\n\nimport type { View as EditingView } from '@ckeditor/ckeditor5-engine';\nimport type { Locale, ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The editable UI view class.\n */\nexport default class EditableUIView extends View {\n\t/**\n\t * The name of the editable UI view.\n\t */\n\tpublic name: string | null = null;\n\n\t/**\n\t * Controls whether the editable is focused, i.e. the user is typing in it.\n\t *\n\t * @observable\n\t */\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * The editing view instance the editable is related to. Editable uses the editing\n\t * view to dynamically modify its certain DOM attributes after {@link #render rendering}.\n\t *\n\t * **Note**: The DOM attributes are performed by the editing view and not UI\n\t * {@link module:ui/view~View#bindTemplate template bindings} because once rendered,\n\t * the editable DOM element must remain under the full control of the engine to work properly.\n\t */\n\tprotected _editingView: EditingView;\n\n\t/**\n\t * The element which is the main editable element (usually the one with `contentEditable=\"true\"`).\n\t */\n\tprivate _editableElement: HTMLElement | null | undefined;\n\n\t/**\n\t * Whether an external {@link #_editableElement} was passed into the constructor, which also means\n\t * the view will not render its {@link #template}.\n\t */\n\tprivate _hasExternalElement: boolean;\n\n\t/**\n\t * Creates an instance of EditableUIView class.\n\t *\n\t * @param locale The locale instance.\n\t * @param editingView The editing view instance the editable is related to.\n\t * @param editableElement The editable element. If not specified, this view\n\t * should create it. Otherwise, the existing element should be used.\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\teditingView: EditingView,\n\t\teditableElement?: HTMLElement\n\t) {\n\t\tsuper( locale );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-content',\n\t\t\t\t\t'ck-editor__editable',\n\t\t\t\t\t'ck-rounded-corners'\n\t\t\t\t],\n\t\t\t\tlang: locale.contentLanguage,\n\t\t\t\tdir: locale.contentLanguageDirection\n\t\t\t}\n\t\t} );\n\n\t\tthis.set( 'isFocused', false );\n\n\t\tthis._editableElement = editableElement;\n\t\tthis._hasExternalElement = !!this._editableElement;\n\t\tthis._editingView = editingView;\n\t}\n\n\t/**\n\t * Renders the view by either applying the {@link #template} to the existing\n\t * {@link module:ui/editableui/editableuiview~EditableUIView#_editableElement} or assigning {@link #element}\n\t * as {@link module:ui/editableui/editableuiview~EditableUIView#_editableElement}.\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tif ( this._hasExternalElement ) {\n\t\t\tthis.template!.apply( this.element = this._editableElement! );\n\t\t} else {\n\t\t\tthis._editableElement = this.element;\n\t\t}\n\n\t\tthis.on<ObservableChangeEvent>( 'change:isFocused', () => this._updateIsFocusedClasses() );\n\t\tthis._updateIsFocusedClasses();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tif ( this._hasExternalElement ) {\n\t\t\tthis.template!.revert( this._editableElement! );\n\t\t}\n\n\t\tsuper.destroy();\n\t}\n\n\t/**\n\t * Whether an external {@link #_editableElement} was passed into the constructor, which also means\n\t * the view will not render its {@link #template}.\n\t */\n\tpublic get hasExternalElement(): boolean {\n\t\treturn this._hasExternalElement;\n\t}\n\n\t/**\n\t * Updates the `ck-focused` and `ck-blurred` CSS classes on the {@link #element} according to\n\t * the {@link #isFocused} property value using the {@link #_editingView editing view} API.\n\t */\n\tprivate _updateIsFocusedClasses() {\n\t\tconst editingView = this._editingView;\n\n\t\tif ( editingView.isRenderingInProgress ) {\n\t\t\tupdateAfterRender( this );\n\t\t} else {\n\t\t\tupdate( this );\n\t\t}\n\n\t\tfunction update( view: EditableUIView ) {\n\t\t\teditingView.change( writer => {\n\t\t\t\tconst viewRoot = editingView.document.getRoot( view.name! )!;\n\n\t\t\t\twriter.addClass( view.isFocused ? 'ck-focused' : 'ck-blurred', viewRoot );\n\t\t\t\twriter.removeClass( view.isFocused ? 'ck-blurred' : 'ck-focused', viewRoot );\n\t\t\t} );\n\t\t}\n\n\t\t// In a case of a multi-root editor, a callback will be attached more than once (one callback for each root).\n\t\t// While executing one callback the `isRenderingInProgress` observable is changing what causes executing another\n\t\t// callback and render is called inside the already pending render.\n\t\t// We need to be sure that callback is executed only when the value has changed from `true` to `false`.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1676.\n\t\tfunction updateAfterRender( view: EditableUIView ) {\n\t\t\teditingView.once<ObservableChangeEvent<boolean>>( 'change:isRenderingInProgress', ( evt, name, value ) => {\n\t\t\t\tif ( !value ) {\n\t\t\t\t\tupdate( view );\n\t\t\t\t} else {\n\t\t\t\t\tupdateAfterRender( view );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/editableui/inline/inlineeditableuiview\n */\n\nimport EditableUIView from '../editableuiview';\n\nimport type { View } from '@ckeditor/ckeditor5-engine';\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The inline editable UI class implementing an inline {@link module:ui/editableui/editableuiview~EditableUIView}.\n */\nexport default class InlineEditableUIView extends EditableUIView {\n\t/**\n\t * A function that gets called with the instance of this view as an argument and should return a string that\n\t * represents the label of the editable for assistive technologies.\n\t */\n\tprivate readonly _generateLabel: ( view: InlineEditableUIView ) => string;\n\n\t/**\n\t * Creates an instance of the InlineEditableUIView class.\n\t *\n\t * @param locale The locale instance.\n\t * @param editingView The editing view instance the editable is related to.\n\t * @param editableElement The editable element. If not specified, the\n\t * {@link module:ui/editableui/editableuiview~EditableUIView}\n\t * will create it. Otherwise, the existing element will be used.\n\t * @param options Additional configuration of the view.\n\t * @param options.label A function that gets called with the instance of this view as an argument\n\t * and should return a string that represents the label of the editable for assistive technologies. If not provided,\n\t * a default label generator is used.\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\teditingView: View,\n\t\teditableElement?: HTMLElement,\n\t\toptions: { label?: ( view: InlineEditableUIView ) => string } = {}\n\t) {\n\t\tsuper( locale, editingView, editableElement );\n\n\t\tconst t = locale.t;\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\trole: 'textbox',\n\t\t\t\tclass: 'ck-editor__editable_inline'\n\t\t\t}\n\t\t} );\n\n\t\tthis._generateLabel = options.label || ( () => t( 'Editor editing area: %0', this.name! ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tconst editingView = this._editingView;\n\n\t\teditingView.change( writer => {\n\t\t\tconst viewRoot = editingView.document.getRoot( this.name! );\n\n\t\t\twriter.setAttribute( 'aria-label', this._generateLabel( this ), viewRoot! );\n\t\t} );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./formheader.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/formheader/formheaderview\n */\n\nimport View from '../view';\nimport type ViewCollection from '../viewcollection';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/formheader/formheader.css';\n\n/**\n * The class component representing a form header view. It should be used in more advanced forms to\n * describe the main purpose of the form.\n *\n * By default the component contains a bolded label view that has to be set. The label is usually a short (at most 3-word) string.\n * The component can also be extended by any other elements, like: icons, dropdowns, etc.\n *\n * It is used i.a.\n * by {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView}\n * and {@link module:special-characters/ui/specialcharactersnavigationview~SpecialCharactersNavigationView}.\n *\n * The latter is an example, where the component has been extended by {@link module:ui/dropdown/dropdownview~DropdownView} view.\n */\nexport default class FormHeaderView extends View {\n\t/**\n\t * A collection of header items.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * The label of the header.\n\t *\n\t * @observable\n\t */\n\tpublic declare label: string;\n\n\t/**\n\t * An additional CSS class added to the {@link #element}.\n\t *\n\t * @observable\n\t */\n\tpublic declare class: string | null;\n\n\t/**\n\t * Creates an instance of the form header class.\n\t *\n\t * @param locale The locale instance.\n\t * @param options.label A label.\n\t * @param options.class An additional class.\n\t */\n\tconstructor(\n\t\tlocale: Locale | undefined,\n\t\toptions: { label?: string | null; class?: string | null } = {}\n\t) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'label', options.label || '' );\n\t\tthis.set( 'class', options.class || null );\n\n\t\tthis.children = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form__header',\n\t\t\t\t\tbind.to( 'class' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\n\t\tconst label = new View( locale );\n\n\t\tlabel.setTemplate( {\n\t\t\ttag: 'h2',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form__header__label'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{ text: bind.to( 'label' ) }\n\t\t\t]\n\t\t} );\n\n\t\tthis.children.add( label );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./input.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/input/inputview\n */\n\nimport View from '../view';\n\nimport {\n\tFocusTracker,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/input/input.css';\n\n/**\n * The base input view class.\n */\nexport default class InputView extends View<HTMLInputElement> {\n\t/**\n\t * Stores information about the editor UI focus and propagates it so various plugins and components\n\t * are unified as a focus group.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * The value of the input.\n\t *\n\t * @observable\n\t */\n\tdeclare public value: string | undefined;\n\n\t/**\n\t * The `id` attribute of the input (i.e. to pair with a `<label>` element).\n\t *\n\t * @observable\n\t */\n\tdeclare public id: string | undefined;\n\n\t/**\n\t * The `placeholder` attribute of the input.\n\t *\n\t * @observable\n\t */\n\tdeclare public placeholder: string | undefined;\n\n\t/**\n\t * Controls whether the input view is in read-only mode.\n\t *\n\t * @observable\n\t */\n\tdeclare public isReadOnly: boolean;\n\n\t/**\n\t * Set to `true` when the field has some error. Usually controlled via\n\t * {@link module:ui/labeledinput/labeledinputview~LabeledInputView#errorText}.\n\t *\n\t * @observable\n\t */\n\tdeclare public hasError: boolean;\n\n\t/**\n\t * The `id` of the element describing this field, e.g. when it has\n\t * some error; it helps screen readers read the error text.\n\t *\n\t * @observable\n\t */\n\tdeclare public ariaDescribedById: string | undefined;\n\n\t/**\n\t * An observable flag set to `true` when the input is currently focused by the user.\n\t * Set to `false` otherwise.\n\t *\n\t * @readonly\n\t * @observable\n\t * @default false\n\t */\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * An observable flag set to `true` when the input contains no text, i.e.\n\t * when {@link #value} is `''`, `null`, or `false`.\n\t *\n\t * @readonly\n\t * @observable\n\t * @default true\n\t */\n\tdeclare public isEmpty: boolean;\n\n\t/**\n\t * Corresponds to the `inputmode` DOM attribute. Can be `text`, `numeric`, `decimal`, etc.\n\t *\n\t * @observable\n\t * @default 'text'\n\t */\n\tdeclare public inputMode: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.set( 'value', undefined );\n\t\tthis.set( 'id', undefined );\n\t\tthis.set( 'placeholder', undefined );\n\t\tthis.set( 'isReadOnly', false );\n\t\tthis.set( 'hasError', false );\n\t\tthis.set( 'ariaDescribedById', undefined );\n\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\tthis.bind( 'isFocused' ).to( this.focusTracker );\n\t\tthis.set( 'isEmpty', true );\n\t\tthis.set( 'inputMode', 'text' );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'input',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-input',\n\t\t\t\t\tbind.if( 'isFocused', 'ck-input_focused' ),\n\t\t\t\t\tbind.if( 'isEmpty', 'ck-input-text_empty' ),\n\t\t\t\t\tbind.if( 'hasError', 'ck-error' )\n\t\t\t\t],\n\t\t\t\tid: bind.to( 'id' ),\n\t\t\t\tplaceholder: bind.to( 'placeholder' ),\n\t\t\t\treadonly: bind.to( 'isReadOnly' ),\n\t\t\t\tinputmode: bind.to( 'inputMode' ),\n\t\t\t\t'aria-invalid': bind.if( 'hasError', true ),\n\t\t\t\t'aria-describedby': bind.to( 'ariaDescribedById' )\n\t\t\t},\n\t\t\ton: {\n\t\t\t\tinput: bind.to( ( ...args ) => {\n\t\t\t\t\tthis.fire( 'input', ...args );\n\t\t\t\t\tthis._updateIsEmpty();\n\t\t\t\t} ),\n\t\t\t\tchange: bind.to( this._updateIsEmpty.bind( this ) )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.focusTracker.add( this.element! );\n\n\t\tthis._setDomElementValue( this.value );\n\t\tthis._updateIsEmpty();\n\n\t\t// Bind `this.value` to the DOM element's value.\n\t\t// We cannot use `value` DOM attribute because removing it on Edge does not clear the DOM element's value property.\n\t\tthis.on<ObservableChangeEvent>( 'change:value', ( evt, name, value ) => {\n\t\t\tthis._setDomElementValue( value );\n\t\t\tthis._updateIsEmpty();\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t}\n\n\t/**\n\t * Moves the focus to the input and selects the value.\n\t */\n\tpublic select(): void {\n\t\tthis.element!.select();\n\t}\n\n\t/**\n\t * Focuses the input.\n\t */\n\tpublic focus(): void {\n\t\tthis.element!.focus();\n\t}\n\n\t/**\n\t * Updates the {@link #isEmpty} property value on demand.\n\t */\n\tprivate _updateIsEmpty() {\n\t\tthis.isEmpty = isInputElementEmpty( this.element! );\n\t}\n\n\t/**\n\t * Sets the `value` property of the {@link #element DOM element} on demand.\n\t */\n\tprivate _setDomElementValue( value: any ) {\n\t\tthis.element!.value = ( !value && value !== 0 ) ? '' : value;\n\t}\n}\n\nfunction isInputElementEmpty( domElement: HTMLInputElement ) {\n\treturn !domElement.value;\n}\n\n/**\n * Fired when the user types in the input. Corresponds to the native\n * DOM `input` event.\n *\n * @eventName ~InputView#input\n */\nexport type InputViewInputEvent = {\n\tname: 'input';\n\targs: [ InputEvent ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/inputtext/inputtextview\n */\n\nimport InputView from '../input/inputview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The text input view class.\n */\nexport default class InputTextView extends InputView {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\ttype: 'text',\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-input-text'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/inputnumber/inputnumberview\n */\n\nimport InputView from '../input/inputview';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The number input view class.\n */\nexport default class InputNumberView extends InputView {\n\t/**\n\t * The value of the `min` DOM attribute (the lowest accepted value) set on the {@link #element}.\n\t *\n\t * @observable\n\t * @default undefined\n\t */\n\tdeclare public min: number | undefined;\n\n\t/**\n\t * The value of the `max` DOM attribute (the highest accepted value) set on the {@link #element}.\n\t *\n\t * @observable\n\t * @default undefined\n\t */\n\tdeclare public max: number | undefined;\n\n\t/**\n\t * The value of the `step` DOM attribute set on the {@link #element}.\n\t *\n\t * @observable\n\t * @default undefined\n\t */\n\tdeclare public step: number | undefined;\n\n\t/**\n\t * Creates an instance of the input number view.\n\t *\n\t * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param options The options of the input.\n\t * @param options.min The value of the `min` DOM attribute (the lowest accepted value).\n\t * @param options.max The value of the `max` DOM attribute (the highest accepted value).\n\t * @param options.step The value of the `step` DOM attribute.\n\t */\n\tconstructor(\n\t\tlocale?: Locale,\n\t\t{ min, max, step }: {\n\t\t\tmin?: number;\n\t\t\tmax?: number;\n\t\t\tstep?: number;\n\t\t} = {}\n\t) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'min', min );\n\t\tthis.set( 'max', max );\n\t\tthis.set( 'step', step );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\ttype: 'number',\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-input-number'\n\t\t\t\t],\n\t\t\t\tmin: bind.to( 'min' ),\n\t\t\t\tmax: bind.to( 'max' ),\n\t\t\t\tstep: bind.to( 'step' )\n\t\t\t}\n\t\t} );\n\t}\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./labeledfieldview.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/labeledfield/labeledfieldview\n */\n\nimport View from '../view';\nimport LabelView from '../label/labelview';\n\nimport type { FocusableView } from '../focuscycler';\nimport type ViewCollection from '../viewcollection';\n\nimport { uid, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../theme/components/labeledfield/labeledfieldview.css';\n\n/**\n * The labeled field view class. It can be used to enhance any view with the following features:\n *\n * * a label,\n * * (optional) an error message,\n * * (optional) an info (status) text,\n *\n * all bound logically by proper DOM attributes for UX and accessibility.  It also provides an interface\n * (e.g. observable properties) that allows controlling those additional features.\n *\n * The constructor of this class requires a callback that returns a view to be labeled. The callback\n * is called with unique ids that allow binding of DOM properties:\n *\n * ```ts\n * const labeledInputView = new LabeledFieldView( locale, ( labeledFieldView, viewUid, statusUid ) => {\n * \tconst inputView = new InputTextView( labeledFieldView.locale );\n *\n * \tinputView.set( {\n * \t\tid: viewUid,\n * \t\tariaDescribedById: statusUid\n * \t} );\n *\n * \tinputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n * \tinputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n *\n * \treturn inputView;\n * } );\n *\n * labeledInputView.label = 'User name';\n * labeledInputView.infoText = 'Full name like for instance, John Doe.';\n * labeledInputView.render();\n *\n * document.body.append( labeledInputView.element );\n * ```\n *\n * See {@link module:ui/labeledfield/utils} to discover ready–to–use labeled input helpers for common\n * UI components.\n */\nexport default class LabeledFieldView<TFieldView extends FocusableView = FocusableView> extends View {\n\t/**\n\t * The field view that gets labeled.\n\t */\n\tpublic readonly fieldView: TFieldView;\n\n\t/**\n\t * The label view instance that describes the entire view.\n\t */\n\tpublic readonly labelView: LabelView;\n\n\t/**\n\t * The status view for the {@link #fieldView}. It displays {@link #errorText} and\n\t * {@link #infoText}.\n\t */\n\tpublic readonly statusView: View;\n\n\t/**\n\t * A collection of children of the internal wrapper element. Allows inserting additional DOM elements (views) next to\n\t * the {@link #fieldView} for easy styling (e.g. positioning).\n\t *\n\t * By default, the collection contains {@link #fieldView} and {@link #labelView}.\n\t */\n\tpublic readonly fieldWrapperChildren: ViewCollection;\n\n\t/**\n\t * The text of the label.\n\t *\n\t * @observable\n\t */\n\tdeclare public label: string | undefined;\n\n\t/**\n\t * Controls whether the component is in read-only mode.\n\t *\n\t * @observable\n\t */\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * An observable flag set to `true` when {@link #fieldView} is empty (`false` otherwise).\n\t *\n\t * @readonly\n\t * @observable\n\t * @default true\n\t */\n\tdeclare public isEmpty: boolean;\n\n\t/**\n\t * An observable flag set to `true` when {@link #fieldView} is currently focused by\n\t * the user (`false` otherwise).\n\t *\n\t * @readonly\n\t * @observable\n\t * @default false\n\t */\n\tdeclare public isFocused: boolean;\n\n\t/**\n\t * The validation error text. When set, it will be displayed\n\t * next to the {@link #fieldView} as a typical validation error message.\n\t * Set it to `null` to hide the message.\n\t *\n\t * **Note:** Setting this property to anything but `null` will automatically\n\t * make the `hasError` of the {@link #fieldView} `true`.\n\t *\n\t * @observable\n\t */\n\tdeclare public errorText: string | null;\n\n\t/**\n\t * The additional information text displayed next to the {@link #fieldView} which can\n\t * be used to inform the user about its purpose, provide help or hints.\n\t *\n\t * Set it to `null` to hide the message.\n\t *\n\t * **Note:** This text will be displayed in the same place as {@link #errorText} but the\n\t * latter always takes precedence: if the {@link #errorText} is set, it replaces\n\t * {@link #infoText}.\n\t *\n\t * @observable\n\t * @default null\n\t */\n\tdeclare public infoText: string | null;\n\n\t/**\n\t * (Optional) The additional CSS class set on the dropdown {@link #element}.\n\t *\n\t * @observable\n\t */\n\tdeclare public class: string | undefined;\n\n\t/**\n\t * The content of the `placeholder` attribute of the {@link #fieldView}.\n\t *\n\t * @observable\n\t */\n\tdeclare public placeholder: string | undefined;\n\n\t/**\n\t * The combined status text made of {@link #errorText} and {@link #infoText}.\n\t * Note that when present, {@link #errorText} always takes precedence in the\n\t * status.\n\t *\n\t * @see #errorText\n\t * @see #infoText\n\t * @see #statusView\n\t * @private\n\t * @observable\n\t */\n\tdeclare public _statusText: string | null;\n\n\t/**\n\t * Creates an instance of the labeled field view class using a provided creator function\n\t * that provides the view to be labeled.\n\t *\n\t * @param locale The locale instance.\n\t * @param viewCreator A function that returns a {@link module:ui/view~View}\n\t * that will be labeled. The following arguments are passed to the creator function:\n\t *\n\t * * an instance of the `LabeledFieldView` to allow binding observable properties,\n\t * * an UID string that connects the {@link #labelView label} and the labeled field view in DOM,\n\t * * an UID string that connects the {@link #statusView status} and the labeled field view in DOM.\n\t */\n\tconstructor(\n\t\tlocale: Locale | undefined,\n\t\tviewCreator: ( labeledFieldView: LabeledFieldView, viewUid: string, statusUid: string ) => TFieldView\n\t) {\n\t\tsuper( locale );\n\n\t\tconst viewUid = `ck-labeled-field-view-${ uid() }`;\n\t\tconst statusUid = `ck-labeled-field-view-status-${ uid() }`;\n\n\t\tthis.fieldView = viewCreator( this, viewUid, statusUid );\n\n\t\tthis.set( 'label', undefined );\n\t\tthis.set( 'isEnabled', true );\n\t\tthis.set( 'isEmpty', true );\n\t\tthis.set( 'isFocused', false );\n\t\tthis.set( 'errorText', null );\n\t\tthis.set( 'infoText', null );\n\t\tthis.set( 'class', undefined );\n\t\tthis.set( 'placeholder', undefined );\n\n\t\tthis.labelView = this._createLabelView( viewUid );\n\t\tthis.statusView = this._createStatusView( statusUid );\n\t\tthis.fieldWrapperChildren = this.createCollection( [ this.fieldView, this.labelView ] );\n\n\t\tthis.bind( '_statusText' ).to(\n\t\t\tthis, 'errorText',\n\t\t\tthis, 'infoText',\n\t\t\t( errorText, infoText ) => errorText || infoText\n\t\t);\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-labeled-field-view',\n\t\t\t\t\tbind.to( 'class' ),\n\t\t\t\t\tbind.if( 'isEnabled', 'ck-disabled', value => !value ),\n\t\t\t\t\tbind.if( 'isEmpty', 'ck-labeled-field-view_empty' ),\n\t\t\t\t\tbind.if( 'isFocused', 'ck-labeled-field-view_focused' ),\n\t\t\t\t\tbind.if( 'placeholder', 'ck-labeled-field-view_placeholder' ),\n\t\t\t\t\tbind.if( 'errorText', 'ck-error' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-labeled-field-view__input-wrapper'\n\t\t\t\t\t\t]\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.fieldWrapperChildren\n\t\t\t\t},\n\t\t\t\tthis.statusView\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * Creates label view class instance and bind with view.\n\t *\n\t * @param id Unique id to set as labelView#for attribute.\n\t */\n\tprivate _createLabelView( id: string ): LabelView {\n\t\tconst labelView = new LabelView( this.locale );\n\n\t\tlabelView.for = id;\n\t\tlabelView.bind( 'text' ).to( this, 'label' );\n\n\t\treturn labelView;\n\t}\n\n\t/**\n\t * Creates the status view instance. It displays {@link #errorText} and {@link #infoText}\n\t * next to the {@link #fieldView}. See {@link #_statusText}.\n\t *\n\t * @param statusUid Unique id of the status, shared with the {@link #fieldView view's}\n\t * `aria-describedby` attribute.\n\t */\n\tprivate _createStatusView( statusUid: string ): View {\n\t\tconst statusView = new View( this.locale );\n\t\tconst bind = this.bindTemplate;\n\n\t\tstatusView.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-labeled-field-view__status',\n\t\t\t\t\tbind.if( 'errorText', 'ck-labeled-field-view__status_error' ),\n\t\t\t\t\tbind.if( '_statusText', 'ck-hidden', value => !value )\n\t\t\t\t],\n\t\t\t\tid: statusUid,\n\t\t\t\trole: bind.if( 'errorText', 'alert' )\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( '_statusText' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\treturn statusView;\n\t}\n\n\t/**\n\t * Focuses the {@link #fieldView}.\n\t */\n\tpublic focus(): void {\n\t\tthis.fieldView.focus();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/labeledfield/utils\n */\n\nimport InputTextView from '../inputtext/inputtextview';\nimport InputNumberView from '../inputnumber/inputnumberview';\nimport { createDropdown } from '../dropdown/utils';\n\nimport type LabeledFieldView from './labeledfieldview';\nimport type DropdownView from '../dropdown/dropdownview';\nimport type { InputViewInputEvent } from '../input/inputview';\n\n/**\n * A helper for creating labeled inputs.\n *\n * It creates an instance of a {@link module:ui/inputtext/inputtextview~InputTextView input text} that is\n * logically related to a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled view} in DOM.\n *\n * The helper does the following:\n *\n * * It sets input's `id` and `ariaDescribedById` attributes.\n * * It binds input's `isReadOnly` to the labeled view.\n * * It binds input's `hasError` to the labeled view.\n * * It enables a logic that cleans up the error when user starts typing in the input.\n *\n * Usage:\n *\n * ```ts\n * const labeledInputView = new LabeledFieldView( locale, createLabeledInputText );\n * console.log( labeledInputView.fieldView ); // A text input instance.\n * ```\n *\n * @param labeledFieldView The instance of the labeled field view.\n * @param viewUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#labelView labeled view's label} and the input.\n * @param statusUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#statusView labeled view's status} and the input.\n * @returns The input text view instance.\n */\nexport function createLabeledInputText(\n\tlabeledFieldView: LabeledFieldView,\n\tviewUid: string,\n\tstatusUid: string\n): InputTextView {\n\tconst inputView = new InputTextView( labeledFieldView.locale );\n\n\tinputView.set( {\n\t\tid: viewUid,\n\t\tariaDescribedById: statusUid\n\t} );\n\n\tinputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n\tinputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n\n\tinputView.on<InputViewInputEvent>( 'input', () => {\n\t\t// UX: Make the error text disappear and disable the error indicator as the user\n\t\t// starts fixing the errors.\n\t\tlabeledFieldView.errorText = null;\n\t} );\n\n\tlabeledFieldView.bind( 'isEmpty', 'isFocused', 'placeholder' ).to( inputView );\n\n\treturn inputView;\n}\n\n/**\n * A helper for creating labeled number inputs.\n *\n * It creates an instance of a {@link module:ui/inputnumber/inputnumberview~InputNumberView input number} that is\n * logically related to a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled view} in DOM.\n *\n * The helper does the following:\n *\n * * It sets input's `id` and `ariaDescribedById` attributes.\n * * It binds input's `isReadOnly` to the labeled view.\n * * It binds input's `hasError` to the labeled view.\n * * It enables a logic that cleans up the error when user starts typing in the input.\n *\n * Usage:\n *\n * ```ts\n * const labeledInputView = new LabeledFieldView( locale, createLabeledInputNumber );\n * console.log( labeledInputView.fieldView ); // A number input instance.\n * ```\n *\n * @param labeledFieldView The instance of the labeled field view.\n * @param viewUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#labelView labeled view's label} and the input.\n * @param statusUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#statusView labeled view's status} and the input.\n * @returns The input number view instance.\n */\nexport function createLabeledInputNumber(\n\tlabeledFieldView: LabeledFieldView,\n\tviewUid: string,\n\tstatusUid: string\n): InputNumberView {\n\tconst inputView = new InputNumberView( labeledFieldView.locale );\n\n\tinputView.set( {\n\t\tid: viewUid,\n\t\tariaDescribedById: statusUid,\n\t\tinputMode: 'numeric'\n\t} );\n\n\tinputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n\tinputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n\n\tinputView.on<InputViewInputEvent>( 'input', () => {\n\t\t// UX: Make the error text disappear and disable the error indicator as the user\n\t\t// starts fixing the errors.\n\t\tlabeledFieldView.errorText = null;\n\t} );\n\n\tlabeledFieldView.bind( 'isEmpty', 'isFocused', 'placeholder' ).to( inputView );\n\n\treturn inputView;\n}\n\n/**\n * A helper for creating labeled dropdowns.\n *\n * It creates an instance of a {@link module:ui/dropdown/dropdownview~DropdownView dropdown} that is\n * logically related to a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled field view}.\n *\n * The helper does the following:\n *\n * * It sets dropdown's `id` and `ariaDescribedById` attributes.\n * * It binds input's `isEnabled` to the labeled view.\n *\n * Usage:\n *\n * ```ts\n * const labeledInputView = new LabeledFieldView( locale, createLabeledDropdown );\n * console.log( labeledInputView.fieldView ); // A dropdown instance.\n * ```\n *\n * @param labeledFieldView The instance of the labeled field view.\n * @param viewUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#labelView labeled view label} and the dropdown.\n * @param statusUid An UID string that allows DOM logical connection between the\n * {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView#statusView labeled view status} and the dropdown.\n * @returns The dropdown view instance.\n */\nexport function createLabeledDropdown(\n\tlabeledFieldView: LabeledFieldView,\n\tviewUid: string,\n\tstatusUid: string\n): DropdownView {\n\tconst dropdownView = createDropdown( labeledFieldView.locale );\n\n\tdropdownView.set( {\n\t\tid: viewUid,\n\t\tariaDescribedById: statusUid\n\t} );\n\n\tdropdownView.bind( 'isEnabled' ).to( labeledFieldView );\n\n\treturn dropdownView;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/notification/notification\n */\n\n/* globals window */\n\nimport { ContextPlugin } from '@ckeditor/ckeditor5-core';\n\n/**\n * The Notification plugin.\n *\n * This plugin sends a few types of notifications: `success`, `info` and `warning`. The notifications need to be\n * handled and displayed by a plugin responsible for showing the UI of the notifications. Using this plugin for dispatching\n * notifications makes it possible to switch the notifications UI.\n *\n * Note that every unhandled and not stopped `warning` notification will be displayed as a system alert.\n * See {@link module:ui/notification/notification~Notification#showWarning}.\n */\nexport default class Notification extends ContextPlugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Notification' {\n\t\treturn 'Notification';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\t// Each unhandled and not stopped `show:warning` event is displayed as a system alert.\n\t\tthis.on<NotificationShowWarningEvent>( 'show:warning', ( evt, data ) => {\n\t\t\twindow.alert( data.message ); // eslint-disable-line no-alert\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Shows a success notification.\n\t *\n\t * By default, it fires the {@link #event:show:success `show:success` event} with the given `data`. The event namespace can be extended\n\t * using the `data.namespace` option. For example:\n\t *\n\t * ```ts\n\t * showSuccess( 'Image is uploaded.', {\n\t * \tnamespace: 'upload:image'\n\t * } );\n\t * ```\n\t *\n\t * will fire the `show:success:upload:image` event.\n\t *\n\t * You can provide the title of the notification:\n\t *\n\t * ```ts\n\t * showSuccess( 'Image is uploaded.', {\n\t * \ttitle: 'Image upload success'\n\t * } );\n\t * ```\n\t *\n\t * @param message The content of the notification.\n\t * @param data Additional data.\n\t * @param data.namespace Additional event namespace.\n\t * @param data.title The title of the notification.\n\t */\n\tpublic showSuccess(\n\t\tmessage: string,\n\t\tdata: { namespace?: string; title?: string } = {}\n\t): void {\n\t\tthis._showNotification( {\n\t\t\tmessage,\n\t\t\ttype: 'success',\n\t\t\tnamespace: data.namespace,\n\t\t\ttitle: data.title\n\t\t} );\n\t}\n\n\t/**\n\t * Shows an information notification.\n\t *\n\t * By default, it fires the {@link #event:show:info `show:info` event} with the given `data`. The event namespace can be extended\n\t * using the `data.namespace` option. For example:\n\t *\n\t * ```ts\n\t * showInfo( 'Editor is offline.', {\n\t * \tnamespace: 'editor:status'\n\t * } );\n\t * ```\n\t *\n\t * will fire the `show:info:editor:status` event.\n\t *\n\t * You can provide the title of the notification:\n\t *\n\t * ```ts\n\t * showInfo( 'Editor is offline.', {\n\t * \ttitle: 'Network information'\n\t * } );\n\t * ```\n\t *\n\t * @param message The content of the notification.\n\t * @param data Additional data.\n\t * @param data.namespace Additional event namespace.\n\t * @param data.title The title of the notification.\n\t */\n\tpublic showInfo(\n\t\tmessage: string,\n\t\tdata: { namespace?: string; title?: string } = {}\n\t): void {\n\t\tthis._showNotification( {\n\t\t\tmessage,\n\t\t\ttype: 'info',\n\t\t\tnamespace: data.namespace,\n\t\t\ttitle: data.title\n\t\t} );\n\t}\n\n\t/**\n\t * Shows a warning notification.\n\t *\n\t * By default, it fires the {@link #event:show:warning `show:warning` event}\n\t * with the given `data`. The event namespace can be extended using the `data.namespace` option. For example:\n\t *\n\t * ```ts\n\t * showWarning( 'Image upload error.', {\n\t * \tnamespace: 'upload:image'\n\t * } );\n\t * ```\n\t *\n\t * will fire the `show:warning:upload:image` event.\n\t *\n\t * You can provide the title of the notification:\n\t *\n\t * ```ts\n\t * showWarning( 'Image upload error.', {\n\t * \ttitle: 'Upload failed'\n\t * } );\n\t * ```\n\t *\n\t * Note that each unhandled and not stopped `warning` notification will be displayed as a system alert.\n\t * The plugin responsible for displaying warnings should `stop()` the event to prevent displaying it as an alert:\n\t *\n\t * ```ts\n\t * notifications.on( 'show:warning', ( evt, data ) => {\n\t * \t// Do something with the data.\n\t *\n\t * \t// Stop this event to prevent displaying it as an alert.\n\t * \tevt.stop();\n\t * } );\n\t * ```\n\t *\n\t * You can attach many listeners to the same event and `stop()` this event in a listener with a low priority:\n\t *\n\t * ```ts\n\t * notifications.on( 'show:warning', ( evt, data ) => {\n\t * \t// Show the warning in the UI, but do not stop it.\n\t * } );\n\t *\n\t * notifications.on( 'show:warning', ( evt, data ) => {\n\t * \t// Log the warning to some error tracker.\n\t *\n\t * \t// Stop this event to prevent displaying it as an alert.\n\t * \tevt.stop();\n\t * }, { priority: 'low' } );\n\t * ```\n\t *\n\t * @param message The content of the notification.\n\t * @param data Additional data.\n\t * @param data.namespace Additional event namespace.\n\t * @param data.title The title of the notification.\n\t */\n\tpublic showWarning(\n\t\tmessage: string,\n\t\tdata: { namespace?: string; title?: string } = {}\n\t): void {\n\t\tthis._showNotification( {\n\t\t\tmessage,\n\t\t\ttype: 'warning',\n\t\t\tnamespace: data.namespace,\n\t\t\ttitle: data.title\n\t\t} );\n\t}\n\n\t/**\n\t * Fires the `show` event with the specified type, namespace and message.\n\t *\n\t * @param data The message data.\n\t * @param data.message The content of the notification.\n\t * @param data.type The type of the message.\n\t * @param data.namespace Additional event namespace.\n\t * @param data.title The title of the notification.\n\t */\n\tprivate _showNotification( data: {\n\t\tmessage: string;\n\t\ttype: NotificationEventType;\n\t\tnamespace?: string;\n\t\ttitle?: string;\n\t} ): void {\n\t\tconst event = data.namespace ?\n\t\t\t`show:${ data.type }:${ data.namespace }` as const :\n\t\t\t`show:${ data.type }` as const;\n\n\t\tthis.fire<NotificationShowTypeEvent<typeof data.type>>( event, {\n\t\t\tmessage: data.message,\n\t\t\ttype: data.type,\n\t\t\ttitle: data.title || ''\n\t\t} );\n\t}\n}\n\nexport type NotificationEventType = 'success' | 'info' | 'warning';\n\n/**\n * Fired when one of the `showSuccess()`, `showInfo()`, `showWarning()` methods is called.\n *\n * @eventName ~Notification#show\n * @param data The notification data.\n */\nexport type NotificationShowEvent = {\n\tname: 'show';\n\targs: [ data: NotificationShowEventData ];\n};\n\n/**\n * Fired when the `showSuccess()` method is called.\n *\n * @eventName ~Notification#show:success\n * @param data The notification data.\n */\nexport type NotificationShowSuccessEvent = NotificationShowTypeEvent<'success'>;\n\n/**\n * Fired when the `showInfo()` method is called.\n *\n * @eventName ~Notification#show:info\n * @param data The notification data.\n */\nexport type NotificationShowInfoEvent = NotificationShowTypeEvent<'info'>;\n\n/**\n * Fired when the `showWarning()` method is called.\n *\n * When this event is not handled or stopped by `event.stop()`, the `data.message` of this event will\n * be automatically displayed as a system alert.\n *\n * @eventName ~Notification#show:warning\n * @param data The notification data.\n */\nexport type NotificationShowWarningEvent = NotificationShowTypeEvent<'warning'>;\n\nexport type NotificationShowTypeEvent<NotificationType extends NotificationEventType> = {\n\tname: `show:${ NotificationType }` | `show:${ NotificationType }:${ string }`;\n\targs: [ data: NotificationShowEventData<NotificationType> ];\n};\n\nexport type NotificationShowEventData<NotificationType extends NotificationEventType = NotificationEventType> = {\n\n\t/**\n\t * The content of the notification.\n\t */\n\tmessage: string;\n\n\t/**\n\t * The title of the notification.\n\t */\n\ttitle: string;\n\n\t/**\n\t * The type of the notification.\n\t */\n\ttype: NotificationType;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/model\n */\n\nimport { ObservableMixin } from '@ckeditor/ckeditor5-utils';\nimport { extend } from 'lodash-es';\n\n/**\n * The base MVC model class.\n */\nexport default class Model extends ObservableMixin() {\n\t[ x: string ]: unknown;\n\n\t/**\n\t * Creates a new Model instance.\n\t *\n\t * @param attributes The model state attributes to be defined during the instance creation.\n\t * @param properties The (out of state) properties to be appended to the instance during creation.\n\t */\n\tconstructor( attributes?: Record<string, unknown>, properties?: Record<string, unknown> ) {\n\t\tsuper();\n\n\t\t// Extend this instance with the additional (out of state) properties.\n\t\tif ( properties ) {\n\t\t\textend( this, properties );\n\t\t}\n\n\t\t// Initialize the attributes.\n\t\tif ( attributes ) {\n\t\t\tthis.set( attributes );\n\t\t}\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M11.463 5.187a.888.888 0 1 1 1.254 1.255L9.16 10l3.557 3.557a.888.888 0 1 1-1.254 1.255L7.26 10.61a.888.888 0 0 1 .16-1.382l4.043-4.042z\\\"/></svg>\";","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./balloonrotator.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./fakepanel.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/panel/balloon/contextualballoon\n */\n\nimport BalloonPanelView from './balloonpanelview';\nimport View from '../../view';\nimport ButtonView from '../../button/buttonview';\nimport type { ButtonExecuteEvent } from '../../button/button';\nimport type ViewCollection from '../../viewcollection';\n\nimport { Plugin, type Editor } from '@ckeditor/ckeditor5-core';\nimport {\n\tCKEditorError,\n\tFocusTracker,\n\tRect,\n\ttoUnit,\n\ttype Locale,\n\ttype ObservableChangeEvent,\n\ttype PositionOptions\n} from '@ckeditor/ckeditor5-utils';\n\nimport prevIcon from '../../../theme/icons/previous-arrow.svg';\nimport nextIcon from '../../../theme/icons/next-arrow.svg';\n\nimport '../../../theme/components/panel/balloonrotator.css';\nimport '../../../theme/components/panel/fakepanel.css';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * Provides the common contextual balloon for the editor.\n *\n * The role of this plugin is to unify the contextual balloons logic, simplify views management and help\n * avoid the unnecessary complexity of handling multiple {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView}\n * instances in the editor.\n *\n * This plugin allows for creating single or multiple panel stacks.\n *\n * Each stack may have multiple views, with the one on the top being visible. When the visible view is removed from the stack,\n * the previous view becomes visible.\n *\n * It might be useful to implement nested navigation in a balloon. For instance, a toolbar view may contain a link button.\n * When you click it, a link view (which lets you set the URL) is created and put on top of the toolbar view, so the link panel\n * is displayed. When you finish editing the link and close (remove) the link view, the toolbar view is visible again.\n *\n * However, there are cases when there are multiple independent balloons to be displayed, for instance, if the selection\n * is inside two inline comments at the same time. For such cases, you can create two independent panel stacks.\n * The contextual balloon plugin will create a navigation bar to let the users switch between these panel stacks using the \"Next\"\n * and \"Previous\" buttons.\n *\n * If there are no views in the current stack, the balloon panel will try to switch to the next stack. If there are no\n * panels in any stack, the balloon panel will be hidden.\n *\n * **Note**: To force the balloon panel to show only one view, even if there are other stacks, use the `singleViewMode=true` option\n * when {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon#add adding} a view to a panel.\n *\n * From the implementation point of view, the contextual ballon plugin is reusing a single\n * {@link module:ui/panel/balloon/balloonpanelview~BalloonPanelView} instance to display multiple contextual balloon\n * panels in the editor. It also creates a special {@link module:ui/panel/balloon/contextualballoon~RotatorView rotator view},\n * used to manage multiple panel stacks. Rotator view is a child of the balloon panel view and the parent of the specific\n * view you want to display. If there is more than one panel stack to be displayed, the rotator view will add a\n * navigation bar. If there is only one stack, the rotator view is transparent (it does not add any UI elements).\n */\nexport default class ContextualBalloon extends Plugin {\n\t/**\n\t * The {@link module:utils/dom/position~Options#limiter position limiter}\n\t * for the {@link #view balloon}, used when no `limiter` has been passed into {@link #add}\n\t * or {@link #updatePosition}.\n\t *\n\t * By default, a function that obtains the farthest DOM\n\t * {@link module:engine/view/rooteditableelement~RootEditableElement}\n\t * of the {@link module:engine/view/document~Document#selection}.\n\t */\n\tpublic positionLimiter: PositionOptions[ 'limiter' ];\n\n\tpublic visibleStack?: string;\n\n\t/**\n\t * The currently visible view or `null` when there are no views in any stack.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public visibleView: View | null;\n\n\t/**\n\t * A total number of all stacks in the balloon.\n\t *\n\t * @private\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _numberOfStacks: number;\n\n\t/**\n\t * A flag that controls the single view mode.\n\t *\n\t * @private\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _singleViewMode: boolean;\n\n\t/**\n\t * The map of views and their stacks.\n\t */\n\tprivate _viewToStack = new Map<View, Stack>();\n\n\t/**\n\t * The map of IDs and stacks.\n\t */\n\tprivate _idToStack = new Map<string, Stack>();\n\n\t/**\n\t * The common balloon panel view.\n\t */\n\tprivate _view: BalloonPanelView | null = null;\n\n\t/**\n\t * Rotator view embedded in the contextual balloon.\n\t * Displays the currently visible view in the balloon and provides navigation for switching stacks.\n\t */\n\tprivate _rotatorView: RotatorView | null = null;\n\n\t/**\n\t * Displays fake panels under the balloon panel view when multiple stacks are added to the balloon.\n\t */\n\tprivate _fakePanelsView: FakePanelsView | null = null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ContextualBalloon' {\n\t\treturn 'ContextualBalloon';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis.positionLimiter = () => {\n\t\t\tconst view = this.editor.editing.view;\n\t\t\tconst viewDocument = view.document;\n\t\t\tconst editableElement = viewDocument.selection.editableElement;\n\n\t\t\tif ( editableElement ) {\n\t\t\t\treturn view.domConverter.mapViewToDom( editableElement.root ) as HTMLElement;\n\t\t\t}\n\n\t\t\treturn null;\n\t\t};\n\n\t\tthis.set( 'visibleView', null );\n\t\tthis.set( '_numberOfStacks', 0 );\n\t\tthis.set( '_singleViewMode', false );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tif ( this._view ) {\n\t\t\tthis._view.destroy();\n\t\t}\n\n\t\tif ( this._rotatorView ) {\n\t\t\tthis._rotatorView.destroy();\n\t\t}\n\n\t\tif ( this._fakePanelsView ) {\n\t\t\tthis._fakePanelsView.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * The common balloon panel view.\n\t */\n\tpublic get view(): BalloonPanelView {\n\t\tif ( !this._view ) {\n\t\t\tthis._createPanelView();\n\t\t}\n\n\t\treturn this._view!;\n\t}\n\n\t/**\n\t * Returns `true` when the given view is in one of the stacks. Otherwise returns `false`.\n\t */\n\tpublic hasView( view: View ): boolean {\n\t\treturn Array.from( this._viewToStack.keys() ).includes( view );\n\t}\n\n\t/**\n\t * Adds a new view to the stack and makes it visible if the current stack is visible\n\t * or it is the first view in the balloon.\n\t *\n\t * @param data The configuration of the view.\n\t * @param data.stackId The ID of the stack that the view is added to. Defaults to `'main'`.\n\t * @param data.view The content of the balloon.\n\t * @param data.position Positioning options.\n\t * @param data.balloonClassName An additional CSS class added to the {@link #view balloon} when visible.\n\t * @param data.withArrow Whether the {@link #view balloon} should be rendered with an arrow. Defaults to `true`.\n\t * @param data.singleViewMode Whether the view should be the only visible view even if other stacks were added. Defaults to `false`.\n\t */\n\tpublic add( data: ViewConfiguration ): void {\n\t\tif ( !this._view ) {\n\t\t\tthis._createPanelView();\n\t\t}\n\n\t\tif ( this.hasView( data.view ) ) {\n\t\t\t/**\n\t\t\t * Trying to add configuration of the same view more than once.\n\t\t\t *\n\t\t\t * @error contextualballoon-add-view-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'contextualballoon-add-view-exist',\n\t\t\t\t[ this, data ]\n\t\t\t);\n\t\t}\n\n\t\tconst stackId = data.stackId || 'main';\n\n\t\t// If new stack is added, creates it and show view from this stack.\n\t\tif ( !this._idToStack.has( stackId ) ) {\n\t\t\tthis._idToStack.set( stackId, new Map( [ [ data.view, data ] ] ) );\n\t\t\tthis._viewToStack.set( data.view, this._idToStack.get( stackId )! );\n\t\t\tthis._numberOfStacks = this._idToStack.size;\n\n\t\t\tif ( !this._visibleStack || data.singleViewMode ) {\n\t\t\t\tthis.showStack( stackId );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst stack = this._idToStack.get( stackId )!;\n\n\t\tif ( data.singleViewMode ) {\n\t\t\tthis.showStack( stackId );\n\t\t}\n\n\t\t// Add new view to the stack.\n\t\tstack.set( data.view, data );\n\t\tthis._viewToStack.set( data.view, stack );\n\n\t\t// And display it if is added to the currently visible stack.\n\t\tif ( stack === this._visibleStack ) {\n\t\t\tthis._showView( data );\n\t\t}\n\t}\n\n\t/**\n\t * Removes the given view from the stack. If the removed view was visible,\n\t * the view preceding it in the stack will become visible instead.\n\t * When there is no view in the stack, the next stack will be displayed.\n\t * When there are no more stacks, the balloon will hide.\n\t *\n\t * @param view A view to be removed from the balloon.\n\t */\n\tpublic remove( view: View ): void {\n\t\tif ( !this.hasView( view ) ) {\n\t\t\t/**\n\t\t\t * Trying to remove the configuration of the view not defined in the stack.\n\t\t\t *\n\t\t\t * @error contextualballoon-remove-view-not-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'contextualballoon-remove-view-not-exist',\n\t\t\t\t[ this, view ]\n\t\t\t);\n\t\t}\n\n\t\tconst stack = this._viewToStack.get( view )!;\n\n\t\tif ( this._singleViewMode && this.visibleView === view ) {\n\t\t\tthis._singleViewMode = false;\n\t\t}\n\n\t\t// When visible view will be removed we need to show a preceding view or next stack\n\t\t// if a view is the only view in the stack.\n\t\tif ( this.visibleView === view ) {\n\t\t\tif ( stack.size === 1 ) {\n\t\t\t\tif ( this._idToStack.size > 1 ) {\n\t\t\t\t\tthis._showNextStack();\n\t\t\t\t} else {\n\t\t\t\t\tthis.view.hide();\n\t\t\t\t\tthis.visibleView = null;\n\t\t\t\t\tthis._rotatorView!.hideView();\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tthis._showView( Array.from( stack.values() )[ stack.size - 2 ] );\n\t\t\t}\n\t\t}\n\n\t\tif ( stack.size === 1 ) {\n\t\t\tthis._idToStack.delete( this._getStackId( stack ) );\n\t\t\tthis._numberOfStacks = this._idToStack.size;\n\t\t} else {\n\t\t\tstack.delete( view );\n\t\t}\n\n\t\tthis._viewToStack.delete( view );\n\t}\n\n\t/**\n\t * Updates the position of the balloon using the position data of the first visible view in the stack.\n\t * When new position data is given, the position data of the currently visible view will be updated.\n\t *\n\t * @param position Position options.\n\t */\n\tpublic updatePosition( position?: Partial<PositionOptions> ): void {\n\t\tif ( position ) {\n\t\t\tthis._visibleStack.get( this.visibleView! )!.position = position;\n\t\t}\n\n\t\tthis.view.pin( this._getBalloonPosition()! );\n\t\tthis._fakePanelsView!.updatePosition();\n\t}\n\n\t/**\n\t * Shows the last view from the stack of a given ID.\n\t */\n\tpublic showStack( id: string ): void {\n\t\tthis.visibleStack = id;\n\t\tconst stack = this._idToStack.get( id );\n\n\t\tif ( !stack ) {\n\t\t\t/**\n\t\t\t * Trying to show a stack that does not exist.\n\t\t\t *\n\t\t\t * @error contextualballoon-showstack-stack-not-exist\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'contextualballoon-showstack-stack-not-exist',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tif ( this._visibleStack === stack ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._showView( Array.from( stack.values() ).pop()! );\n\t}\n\n\t/**\n\t * Initializes view instances.\n\t */\n\tprivate _createPanelView(): void {\n\t\tthis._view = new BalloonPanelView( this.editor.locale );\n\n\t\tthis.editor.ui.view.body.add( this._view );\n\t\tthis.editor.ui.focusTracker.add( this._view.element! );\n\n\t\tthis._rotatorView = this._createRotatorView();\n\t\tthis._fakePanelsView = this._createFakePanelsView();\n\t}\n\n\t/**\n\t * Returns the stack of the currently visible view.\n\t */\n\tprivate get _visibleStack() {\n\t\treturn this._viewToStack.get( this.visibleView! )!;\n\t}\n\n\t/**\n\t * Returns the ID of the given stack.\n\t */\n\tprivate _getStackId( stack: Stack ) {\n\t\tconst entry = Array.from( this._idToStack.entries() ).find( entry => entry[ 1 ] === stack )!;\n\n\t\treturn entry[ 0 ];\n\t}\n\n\t/**\n\t * Shows the last view from the next stack.\n\t */\n\tprivate _showNextStack() {\n\t\tconst stacks = Array.from( this._idToStack.values() );\n\n\t\tlet nextIndex = stacks.indexOf( this._visibleStack ) + 1;\n\n\t\tif ( !stacks[ nextIndex ] ) {\n\t\t\tnextIndex = 0;\n\t\t}\n\n\t\tthis.showStack( this._getStackId( stacks[ nextIndex ] ) );\n\t}\n\n\t/**\n\t * Shows the last view from the previous stack.\n\t */\n\tprivate _showPrevStack() {\n\t\tconst stacks = Array.from( this._idToStack.values() );\n\n\t\tlet nextIndex = stacks.indexOf( this._visibleStack ) - 1;\n\n\t\tif ( !stacks[ nextIndex ] ) {\n\t\t\tnextIndex = stacks.length - 1;\n\t\t}\n\n\t\tthis.showStack( this._getStackId( stacks[ nextIndex ] ) );\n\t}\n\n\t/**\n\t * Creates a rotator view.\n\t */\n\tprivate _createRotatorView() {\n\t\tconst view = new RotatorView( this.editor.locale );\n\t\tconst t = this.editor.locale.t;\n\n\t\tthis.view.content.add( view );\n\n\t\t// Hide navigation when there is only a one stack & not in single view mode.\n\t\tview.bind( 'isNavigationVisible' ).to( this, '_numberOfStacks', this, '_singleViewMode', ( value, isSingleViewMode ) => {\n\t\t\treturn !isSingleViewMode && value > 1;\n\t\t} );\n\n\t\t// Update balloon position after toggling navigation.\n\t\tview.on<ObservableChangeEvent>( 'change:isNavigationVisible', () => ( this.updatePosition() ), { priority: 'low' } );\n\n\t\t// Update stacks counter value.\n\t\tview.bind( 'counter' ).to( this, 'visibleView', this, '_numberOfStacks', ( visibleView, numberOfStacks ) => {\n\t\t\tif ( numberOfStacks < 2 ) {\n\t\t\t\treturn '';\n\t\t\t}\n\n\t\t\tconst current = Array.from( this._idToStack.values() ).indexOf( this._visibleStack ) + 1;\n\n\t\t\treturn t( '%0 of %1', [ current, numberOfStacks ] );\n\t\t} );\n\n\t\tview.buttonNextView.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\t// When current view has a focus then move focus to the editable before removing it,\n\t\t\t// otherwise editor will lost focus.\n\t\t\tif ( view.focusTracker.isFocused ) {\n\t\t\t\tthis.editor.editing.view.focus();\n\t\t\t}\n\n\t\t\tthis._showNextStack();\n\t\t} );\n\n\t\tview.buttonPrevView.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\t// When current view has a focus then move focus to the editable before removing it,\n\t\t\t// otherwise editor will lost focus.\n\t\t\tif ( view.focusTracker.isFocused ) {\n\t\t\t\tthis.editor.editing.view.focus();\n\t\t\t}\n\n\t\t\tthis._showPrevStack();\n\t\t} );\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * Creates a fake panels view.\n\t */\n\tprivate _createFakePanelsView() {\n\t\tconst view = new FakePanelsView( this.editor.locale, this.view );\n\n\t\tview.bind( 'numberOfPanels' ).to( this, '_numberOfStacks', this, '_singleViewMode', ( number, isSingleViewMode ) => {\n\t\t\tconst showPanels = !isSingleViewMode && number >= 2;\n\n\t\t\treturn showPanels ? Math.min( number - 1, 2 ) : 0;\n\t\t} );\n\n\t\tview.listenTo<ObservableChangeEvent>( this.view, 'change:top', () => view.updatePosition() );\n\t\tview.listenTo<ObservableChangeEvent>( this.view, 'change:left', () => view.updatePosition() );\n\n\t\tthis.editor.ui.view.body.add( view );\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * Sets the view as the content of the balloon and attaches the balloon using position\n\t * options of the first view.\n\t *\n\t * @param data Configuration.\n\t * @param data.view The view to show in the balloon.\n\t * @param data.balloonClassName Additional class name which will be added to the {@link #view balloon}.\n\t * @param data.withArrow Whether the {@link #view balloon} should be rendered with an arrow.\n\t */\n\tprivate _showView( { view, balloonClassName = '', withArrow = true, singleViewMode = false }: ViewConfiguration ) {\n\t\tthis.view.class = balloonClassName;\n\t\tthis.view.withArrow = withArrow;\n\n\t\tthis._rotatorView!.showView( view );\n\t\tthis.visibleView = view;\n\t\tthis.view.pin( this._getBalloonPosition()! );\n\t\tthis._fakePanelsView!.updatePosition();\n\n\t\tif ( singleViewMode ) {\n\t\t\tthis._singleViewMode = true;\n\t\t}\n\t}\n\n\t/**\n\t * Returns position options of the last view in the stack.\n\t * This keeps the balloon in the same position when the view is changed.\n\t */\n\tprivate _getBalloonPosition() {\n\t\tlet position = Array.from( this._visibleStack.values() ).pop()!.position;\n\n\t\tif ( position ) {\n\t\t\t// Use the default limiter if none has been specified.\n\t\t\tif ( !position.limiter ) {\n\t\t\t\t// Don't modify the original options object.\n\t\t\t\tposition = Object.assign( {}, position, {\n\t\t\t\t\tlimiter: this.positionLimiter\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Don't modify the original options object.\n\t\t\tposition = Object.assign( {}, position, {\n\t\t\t\tviewportOffsetConfig: this.editor.ui.viewportOffset\n\t\t\t} );\n\t\t}\n\n\t\treturn position;\n\t}\n}\n\n/**\n * The configuration of the view.\n */\nexport interface ViewConfiguration {\n\n\t/**\n\t * The ID of the stack that the view is added to.\n\t *\n\t * @default 'main'\n\t */\n\tstackId?: string;\n\n\t/**\n\t * The content of the balloon.\n\t */\n\tview: View;\n\n\t/**\n\t * Positioning options.\n\t */\n\tposition?: Partial<PositionOptions>;\n\n\t/**\n\t * An additional CSS class added to the {@link #view balloon} when visible.\n\t */\n\tballoonClassName?: string;\n\n\t/**\n\t * Whether the {@link #view balloon} should be rendered with an arrow.\n\t *\n\t * @default true\n\t */\n\twithArrow?: boolean;\n\n\t/**\n\t * Whether the view should be the only visible view even if other stacks were added.\n\t *\n\t * @default false\n\t */\n\tsingleViewMode?: boolean;\n}\n\ntype Stack = Map<View, ViewConfiguration>;\n\n/**\n * Rotator view is a helper class for the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon ContextualBalloon}.\n * It is used for displaying the last view from the current stack and providing navigation buttons for switching stacks.\n * See the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon ContextualBalloon} documentation to learn more.\n */\nexport class RotatorView extends View {\n\t/**\n\t * Used for checking if a view is focused or not.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * Navigation button for switching the stack to the previous one.\n\t */\n\tpublic readonly buttonPrevView: ButtonView;\n\n\t/**\n\t * Navigation button for switching the stack to the next one.\n\t */\n\tpublic readonly buttonNextView: ButtonView;\n\n\t/**\n\t * A collection of the child views that creates the rotator content.\n\t */\n\tpublic readonly content: ViewCollection;\n\n\t/**\n\t * Defines whether navigation is visible or not.\n\t *\n\t * @observable\n\t */\n\tdeclare public isNavigationVisible: boolean;\n\n\t/**\n\t * @observable\n\t */\n\tdeclare public counter: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'isNavigationVisible', true );\n\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.buttonPrevView = this._createButtonView( t( 'Previous' ), prevIcon );\n\t\tthis.buttonNextView = this._createButtonView( t( 'Next' ), nextIcon );\n\t\tthis.content = this.createCollection();\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-balloon-rotator'\n\t\t\t\t],\n\t\t\t\t'z-index': '-1'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck-balloon-rotator__navigation',\n\t\t\t\t\t\t\tbind.to( 'isNavigationVisible', value => value ? '' : 'ck-hidden' )\n\t\t\t\t\t\t]\n\t\t\t\t\t},\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tthis.buttonPrevView,\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\ttag: 'span',\n\n\t\t\t\t\t\t\tattributes: {\n\t\t\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t\t\t'ck-balloon-rotator__counter'\n\t\t\t\t\t\t\t\t]\n\t\t\t\t\t\t\t},\n\n\t\t\t\t\t\t\tchildren: [\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\ttext: bind.to( 'counter' )\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t]\n\t\t\t\t\t\t},\n\t\t\t\t\t\tthis.buttonNextView\n\t\t\t\t\t]\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: 'ck-balloon-rotator__content'\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.content\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.focusTracker.add( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t}\n\n\t/**\n\t * Shows a given view.\n\t *\n\t * @param view The view to show.\n\t */\n\tpublic showView( view: View ): void {\n\t\tthis.hideView();\n\t\tthis.content.add( view );\n\t}\n\n\t/**\n\t * Hides the currently displayed view.\n\t */\n\tpublic hideView(): void {\n\t\tthis.content.clear();\n\t}\n\n\t/**\n\t * Creates a navigation button view.\n\t *\n\t * @param label The button label.\n\t * @param icon The button icon.\n\t */\n\tprivate _createButtonView( label: string, icon: string ) {\n\t\tconst view = new ButtonView( this.locale );\n\n\t\tview.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\treturn view;\n\t}\n}\n\n/**\n * Displays additional layers under the balloon when multiple stacks are added to the balloon.\n */\nclass FakePanelsView extends View {\n\t/**\n\t * Collection of the child views which creates fake panel content.\n\t */\n\tpublic readonly content: ViewCollection;\n\n\t/**\n\t * Fake panels top offset.\n\t *\n\t * @observable\n\t */\n\tdeclare public top: number;\n\n\t/**\n\t * Fake panels left offset.\n\t *\n\t * @observable\n\t */\n\tdeclare public left: number;\n\n\t/**\n\t * Fake panels height.\n\t *\n\t * @observable\n\t */\n\tdeclare public height: number;\n\n\t/**\n\t * Fake panels width.\n\t *\n\t * @observable\n\t */\n\tdeclare public width: number;\n\n\t/**\n\t * Number of rendered fake panels.\n\t *\n\t * @observable\n\t */\n\tdeclare public numberOfPanels: number;\n\n\t/**\n\t * Context.\n\t */\n\tprivate readonly _balloonPanelView: BalloonPanelView;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale: Locale, balloonPanelView: BalloonPanelView ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'top', 0 );\n\t\tthis.set( 'left', 0 );\n\t\tthis.set( 'height', 0 );\n\t\tthis.set( 'width', 0 );\n\t\tthis.set( 'numberOfPanels', 0 );\n\n\t\tthis.content = this.createCollection();\n\t\tthis._balloonPanelView = balloonPanelView;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-fake-panel',\n\t\t\t\t\tbind.to( 'numberOfPanels', number => number ? '' : 'ck-hidden' )\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\ttop: bind.to( 'top', toPx ),\n\t\t\t\t\tleft: bind.to( 'left', toPx ),\n\t\t\t\t\twidth: bind.to( 'width', toPx ),\n\t\t\t\t\theight: bind.to( 'height', toPx )\n\t\t\t\t}\n\t\t\t},\n\t\t\tchildren: this.content\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent<number>>( 'change:numberOfPanels', ( evt, name, next, prev ) => {\n\t\t\tif ( next > prev ) {\n\t\t\t\tthis._addPanels( next - prev );\n\t\t\t} else {\n\t\t\t\tthis._removePanels( prev - next );\n\t\t\t}\n\n\t\t\tthis.updatePosition();\n\t\t} );\n\t}\n\n\tprivate _addPanels( number: number ) {\n\t\twhile ( number-- ) {\n\t\t\tconst view = new View();\n\n\t\t\tview.setTemplate( { tag: 'div' } );\n\n\t\t\tthis.content.add( view );\n\t\t\tthis.registerChild( view );\n\t\t}\n\t}\n\n\tprivate _removePanels( number: number ) {\n\t\twhile ( number-- ) {\n\t\t\tconst view = this.content.last!;\n\n\t\t\tthis.content.remove( view );\n\t\t\tthis.deregisterChild( view );\n\t\t\tview.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Updates coordinates of fake panels.\n\t */\n\tpublic updatePosition() {\n\t\tif ( this.numberOfPanels ) {\n\t\t\tconst { top, left } = this._balloonPanelView;\n\t\t\tconst { width, height } = new Rect( this._balloonPanelView.element! );\n\n\t\t\tObject.assign( this, { top, left, width, height } );\n\t\t}\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M8.537 14.813a.888.888 0 1 1-1.254-1.255L10.84 10 7.283 6.442a.888.888 0 1 1 1.254-1.255L12.74 9.39a.888.888 0 0 1-.16 1.382l-4.043 4.042z\\\"/></svg>\";","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./stickypanel.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/panel/sticky/stickypanelview\n */\n\nimport View from '../../view';\nimport Template from '../../template';\n\nimport type ViewCollection from '../../viewcollection';\n\nimport {\n\tglobal,\n\ttoUnit,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport '../../../theme/components/panel/stickypanel.css';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * The sticky panel view class.\n */\nexport default class StickyPanelView extends View {\n\t/**\n\t * Collection of the child views which creates balloon panel contents.\n\t */\n\tpublic readonly content: ViewCollection;\n\n\t/**\n\t * Controls whether the sticky panel should be active.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isActive: boolean;\n\n\t/**\n\t * Controls whether the sticky panel is in the \"sticky\" state.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isSticky: boolean;\n\n\t/**\n\t * The limiter element for the sticky panel instance. Its bounding rect limits\n\t * the \"stickyness\" of the panel, i.e. when the panel reaches the bottom\n\t * edge of the limiter, it becomes sticky to that edge and does not float\n\t * off the limiter. It is mandatory for the panel to work properly and once\n\t * set, it cannot be changed.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public limiterElement: HTMLElement | null;\n\n\t/**\n\t * The offset from the bottom edge of {@link #limiterElement}\n\t * which stops the panel from stickying any further to prevent limiter's content\n\t * from being completely covered.\n\t *\n\t * @readonly\n\t * @observable\n\t * @default 50\n\t */\n\tdeclare public limiterBottomOffset: number;\n\n\t/**\n\t * The offset from the top edge of the web browser's viewport which makes the\n\t * panel become sticky. The default value is `0`, which means the panel becomes\n\t * sticky when it's upper edge touches the top of the page viewport.\n\t *\n\t * This attribute is useful when the web page has UI elements positioned to the top\n\t * either using `position: fixed` or `position: sticky`, which would cover the\n\t * sticky panel or vice–versa (depending on the `z-index` hierarchy).\n\t *\n\t * Bound to {@link module:ui/editorui/editorui~EditorUI#viewportOffset `EditorUI#viewportOffset`}.\n\t *\n\t * If {@link module:core/editor/editorconfig~EditorConfig#ui `EditorConfig#ui.viewportOffset.top`} is defined, then\n\t * it will override the default value.\n\t *\n\t * @observable\n\t * @default 0\n\t */\n\tdeclare public viewportTopOffset: number;\n\n\t/**\n\t * Controls the `margin-left` CSS style of the panel.\n\t *\n\t * @private\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _marginLeft: string | null;\n\n\t/**\n\t * Set `true` if the sticky panel reached the bottom edge of the\n\t * {@link #limiterElement}.\n\t *\n\t * @private\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _isStickyToTheLimiter: boolean;\n\n\t/**\n\t * Set `true` if the sticky panel uses the {@link #viewportTopOffset},\n\t * i.e. not {@link #_isStickyToTheLimiter} and the {@link #viewportTopOffset}\n\t * is not `0`.\n\t *\n\t * @private\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _hasViewportTopOffset: boolean;\n\n\t/**\n\t * The DOM bounding client rect of the {@link module:ui/view~View#element} of the panel.\n\t */\n\tprivate _panelRect?: DOMRect;\n\n\t/**\n\t * The DOM bounding client rect of the {@link #limiterElement}\n\t * of the panel.\n\t */\n\tprivate _limiterRect?: DOMRect;\n\n\t/**\n\t * A dummy element which visually fills the space as long as the\n\t * actual panel is sticky. It prevents flickering of the UI.\n\t */\n\tprivate _contentPanelPlaceholder: HTMLElement;\n\n\t/**\n\t * The panel which accepts children into {@link #content} collection.\n\t * Also an element which is positioned when {@link #isSticky}.\n\t */\n\tprivate _contentPanel: HTMLElement;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'isActive', false );\n\t\tthis.set( 'isSticky', false );\n\t\tthis.set( 'limiterElement', null );\n\t\tthis.set( 'limiterBottomOffset', 50 );\n\t\tthis.set( 'viewportTopOffset', 0 );\n\n\t\tthis.set( '_marginLeft', null );\n\t\tthis.set( '_isStickyToTheLimiter', false );\n\t\tthis.set( '_hasViewportTopOffset', false );\n\n\t\tthis.content = this.createCollection();\n\n\t\tthis._contentPanelPlaceholder = new Template( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-sticky-panel__placeholder'\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\tdisplay: bind.to( 'isSticky', isSticky => isSticky ? 'block' : 'none' ),\n\t\t\t\t\theight: bind.to( 'isSticky', isSticky => {\n\t\t\t\t\t\treturn isSticky ? toPx( this._panelRect!.height ) : null;\n\t\t\t\t\t} )\n\t\t\t\t}\n\t\t\t}\n\t\t} ).render() as HTMLElement;\n\n\t\tthis._contentPanel = new Template( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-sticky-panel__content',\n\t\t\t\t\t// Toggle class of the panel when \"sticky\" state changes in the view.\n\t\t\t\t\tbind.if( 'isSticky', 'ck-sticky-panel__content_sticky' ),\n\t\t\t\t\tbind.if( '_isStickyToTheLimiter', 'ck-sticky-panel__content_sticky_bottom-limit' )\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\twidth: bind.to( 'isSticky', isSticky => {\n\t\t\t\t\t\treturn isSticky ? toPx( this._contentPanelPlaceholder.getBoundingClientRect().width ) : null;\n\t\t\t\t\t} ),\n\n\t\t\t\t\ttop: bind.to( '_hasViewportTopOffset', _hasViewportTopOffset => {\n\t\t\t\t\t\treturn _hasViewportTopOffset ? toPx( this.viewportTopOffset ) : null;\n\t\t\t\t\t} ),\n\n\t\t\t\t\tbottom: bind.to( '_isStickyToTheLimiter', _isStickyToTheLimiter => {\n\t\t\t\t\t\treturn _isStickyToTheLimiter ? toPx( this.limiterBottomOffset ) : null;\n\t\t\t\t\t} ),\n\n\t\t\t\t\tmarginLeft: bind.to( '_marginLeft' )\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tchildren: this.content\n\t\t} ).render() as HTMLElement;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-sticky-panel'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis._contentPanelPlaceholder,\n\t\t\t\tthis._contentPanel\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Check if the panel should go into the sticky state immediately.\n\t\tthis._checkIfShouldBeSticky();\n\n\t\t// Update sticky state of the panel as the window is being scrolled.\n\t\tthis.listenTo( global.window, 'scroll', () => {\n\t\t\tthis._checkIfShouldBeSticky();\n\t\t} );\n\n\t\t// Synchronize with `model.isActive` because sticking an inactive panel is pointless.\n\t\tthis.listenTo<ObservableChangeEvent>( this, 'change:isActive', () => {\n\t\t\tthis._checkIfShouldBeSticky();\n\t\t} );\n\t}\n\n\t/**\n\t * Analyzes the environment to decide whether the panel should\n\t * be sticky or not.\n\t */\n\tprivate _checkIfShouldBeSticky(): void {\n\t\tconst panelRect = this._panelRect = this._contentPanel.getBoundingClientRect();\n\t\tlet limiterRect: DOMRect;\n\n\t\tif ( !this.limiterElement ) {\n\t\t\tthis.isSticky = false;\n\t\t} else {\n\t\t\tlimiterRect = this._limiterRect = this.limiterElement.getBoundingClientRect();\n\n\t\t\t// The panel must be active to become sticky.\n\t\t\tthis.isSticky = this.isActive &&\n\t\t\t\t// The limiter's top edge must be beyond the upper edge of the visible viewport (+the viewportTopOffset).\n\t\t\t\tlimiterRect.top < this.viewportTopOffset &&\n\t\t\t\t// The model#limiterElement's height mustn't be smaller than the panel's height and model#limiterBottomOffset.\n\t\t\t\t// There's no point in entering the sticky mode if the model#limiterElement is very, very small, because\n\t\t\t\t// it would immediately set model#_isStickyToTheLimiter true and, given model#limiterBottomOffset, the panel\n\t\t\t\t// would be positioned before the model#limiterElement.\n\t\t\t\tthis._panelRect.height + this.limiterBottomOffset < limiterRect.height;\n\t\t}\n\n\t\t// Stick the panel to the top edge of the viewport simulating CSS position:sticky.\n\t\t// TODO: Possibly replaced by CSS in the future http://caniuse.com/#feat=css-sticky\n\t\tif ( this.isSticky ) {\n\t\t\tthis._isStickyToTheLimiter =\n\t\t\t\tlimiterRect!.bottom < panelRect.height + this.limiterBottomOffset + this.viewportTopOffset;\n\t\t\tthis._hasViewportTopOffset = !this._isStickyToTheLimiter && !!this.viewportTopOffset;\n\t\t\tthis._marginLeft = this._isStickyToTheLimiter ? null : toPx( -global.window.scrollX );\n\t\t}\n\t\t// Detach the panel from the top edge of the viewport.\n\t\telse {\n\t\t\tthis._isStickyToTheLimiter = false;\n\t\t\tthis._hasViewportTopOffset = false;\n\t\t\tthis._marginLeft = null;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/balloon/balloontoolbar\n */\n\nimport ContextualBalloon from '../../panel/balloon/contextualballoon';\nimport ToolbarView, { type ToolbarViewGroupedItemsUpdateEvent } from '../toolbarview';\nimport BalloonPanelView, { generatePositions } from '../../panel/balloon/balloonpanelview';\nimport normalizeToolbarConfig from '../normalizetoolbarconfig';\n\nimport type { EditorUIReadyEvent, EditorUIUpdateEvent } from '../../editorui/editorui';\n\nimport {\n\tPlugin,\n\ttype Editor,\n\ttype EditorReadyEvent\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tFocusTracker,\n\tRect,\n\tResizeObserver,\n\tenv,\n\tglobal,\n\ttoUnit,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDocumentSelection,\n\tDocumentSelectionChangeRangeEvent,\n\tSchema\n} from '@ckeditor/ckeditor5-engine';\n\nimport { debounce, type DebouncedFunc } from 'lodash-es';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * The contextual toolbar.\n *\n * It uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n */\nexport default class BalloonToolbar extends Plugin {\n\t/**\n\t * The toolbar view displayed in the balloon.\n\t */\n\tpublic readonly toolbarView: ToolbarView;\n\n\t/**\n\t * Tracks the focus of the {@link module:ui/editorui/editorui~EditorUI#getEditableElement editable element}\n\t * and the {@link #toolbarView}. When both are blurred then the toolbar should hide.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * A cached and normalized `config.balloonToolbar` object.\n\t */\n\tprivate _balloonConfig: ReturnType<typeof normalizeToolbarConfig>;\n\n\t/**\n\t * An instance of the resize observer that allows to respond to changes in editable's geometry\n\t * so the toolbar can stay within its boundaries (and group toolbar items that do not fit).\n\t *\n\t * **Note**: Used only when `shouldNotGroupWhenFull` was **not** set in the\n\t * {@link module:core/editor/editorconfig~EditorConfig#balloonToolbar configuration}.\n\t *\n\t * **Note:** Created in {@link #init}.\n\t */\n\tprivate _resizeObserver: ResizeObserver | null = null;\n\n\t/**\n\t * The contextual balloon plugin instance.\n\t */\n\tprivate readonly _balloon: ContextualBalloon;\n\n\t/**\n\t * Fires `_selectionChangeDebounced` event using `lodash#debounce`.\n\t *\n\t * This event is an internal plugin event which is fired 200 ms after model selection last change.\n\t * This is to makes easy test debounced action without need to use `setTimeout`.\n\t *\n\t * This function is stored as a plugin property to make possible to cancel\n\t * trailing debounced invocation on destroy.\n\t */\n\tprivate readonly _fireSelectionChangeDebounced: DebouncedFunc<() => void>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BalloonToolbar' {\n\t\treturn 'BalloonToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ContextualBalloon ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._balloonConfig = normalizeToolbarConfig( editor.config.get( 'balloonToolbar' ) );\n\t\tthis.toolbarView = this._createToolbarView();\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\t// Wait for the EditorUI#init. EditableElement is not available before.\n\t\teditor.ui.once<EditorUIReadyEvent>( 'ready', () => {\n\t\t\tthis.focusTracker.add( editor.ui.getEditableElement()! );\n\t\t\tthis.focusTracker.add( this.toolbarView.element! );\n\t\t} );\n\n\t\t// Register the toolbar so it becomes available for Alt+F10 and Esc navigation.\n\t\teditor.ui.addToolbar( this.toolbarView, {\n\t\t\tbeforeFocus: () => this.show( true ),\n\t\t\tafterBlur: () => this.hide(),\n\t\t\tisContextual: true\n\t\t} );\n\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\t\tthis._fireSelectionChangeDebounced = debounce( () => this.fire( '_selectionChangeDebounced' ), 200 );\n\n\t\t// The appearance of the BalloonToolbar method is event–driven.\n\t\t// It is possible to stop the #show event and this prevent the toolbar from showing up.\n\t\tthis.decorate( 'show' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\t// Show/hide the toolbar on editable focus/blur.\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( this.focusTracker, 'change:isFocused', ( evt, name, isFocused ) => {\n\t\t\tconst isToolbarVisible = this._balloon.visibleView === this.toolbarView;\n\n\t\t\tif ( !isFocused && isToolbarVisible ) {\n\t\t\t\tthis.hide();\n\t\t\t} else if ( isFocused ) {\n\t\t\t\tthis.show();\n\t\t\t}\n\t\t} );\n\n\t\t// Hide the toolbar when the selection is changed by a direct change or has changed to collapsed.\n\t\tthis.listenTo<DocumentSelectionChangeRangeEvent>( selection, 'change:range', ( evt, data ) => {\n\t\t\tif ( data.directChange || selection.isCollapsed ) {\n\t\t\t\tthis.hide();\n\t\t\t}\n\n\t\t\t// Fire internal `_selectionChangeDebounced` event to use it for showing\n\t\t\t// the toolbar after the selection stops changing.\n\t\t\tthis._fireSelectionChangeDebounced();\n\t\t} );\n\n\t\t// Show the toolbar when the selection stops changing.\n\t\tthis.listenTo( this, '_selectionChangeDebounced', () => {\n\t\t\tif ( this.editor.editing.view.document.isFocused ) {\n\t\t\t\tthis.show();\n\t\t\t}\n\t\t} );\n\n\t\tif ( !this._balloonConfig.shouldNotGroupWhenFull ) {\n\t\t\tthis.listenTo<EditorReadyEvent>( editor, 'ready', () => {\n\t\t\t\tconst editableElement = editor.ui.view.editable.element!;\n\n\t\t\t\t// Set #toolbarView's max-width on the initialization and update it on the editable resize.\n\t\t\t\tthis._resizeObserver = new ResizeObserver( editableElement, entry => {\n\t\t\t\t\t// The max-width equals 90% of the editable's width for the best user experience.\n\t\t\t\t\t// The value keeps the balloon very close to the boundaries of the editable and limits the cases\n\t\t\t\t\t// when the balloon juts out from the editable element it belongs to.\n\t\t\t\t\tthis.toolbarView.maxWidth = toPx( entry.contentRect.width * .9 );\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\n\t\t// Listen to the toolbar view and whenever it changes its geometry due to some items being\n\t\t// grouped or ungrouped, update the position of the balloon because a shorter/longer toolbar\n\t\t// means the balloon could be pointing at the wrong place. Once updated, the balloon will point\n\t\t// at the right selection in the content again.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/6444\n\t\tthis.listenTo<ToolbarViewGroupedItemsUpdateEvent>( this.toolbarView, 'groupedItemsUpdate', () => {\n\t\t\tthis._updatePosition();\n\t\t} );\n\t}\n\n\t/**\n\t * Creates toolbar components based on given configuration.\n\t * This needs to be done when all plugins are ready.\n\t */\n\tpublic afterInit(): void {\n\t\tconst factory = this.editor.ui.componentFactory;\n\n\t\tthis.toolbarView.fillFromConfig( this._balloonConfig, factory );\n\t}\n\n\t/**\n\t * Creates the toolbar view instance.\n\t */\n\tprivate _createToolbarView() {\n\t\tconst t = this.editor.locale.t;\n\t\tconst shouldGroupWhenFull = !this._balloonConfig.shouldNotGroupWhenFull;\n\t\tconst toolbarView = new ToolbarView( this.editor.locale, {\n\t\t\tshouldGroupWhenFull,\n\t\t\tisFloating: true\n\t\t} );\n\n\t\ttoolbarView.ariaLabel = t( 'Editor contextual toolbar' );\n\t\ttoolbarView.render();\n\n\t\treturn toolbarView;\n\t}\n\n\t/**\n\t * Shows the toolbar and attaches it to the selection.\n\t *\n\t * Fires {@link #event:show} event which can be stopped to prevent the toolbar from showing up.\n\t *\n\t * @param showForCollapsedSelection When set `true`, the toolbar will show despite collapsed selection in the\n\t * editing view.\n\t */\n\tpublic show( showForCollapsedSelection: boolean = false ): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Do not add the toolbar to the balloon stack twice.\n\t\tif ( this._balloon.hasView( this.toolbarView ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not show the toolbar when the selection is collapsed.\n\t\tif ( selection.isCollapsed && !showForCollapsedSelection ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not show the toolbar when there is more than one range in the selection and they fully contain selectable elements.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/6443.\n\t\tif ( selectionContainsOnlyMultipleSelectables( selection, schema ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Don not show the toolbar when all components inside are disabled\n\t\t// see https://github.com/ckeditor/ckeditor5-ui/issues/269.\n\t\tif ( Array.from( this.toolbarView.items ).every( ( item: any ) => item.isEnabled !== undefined && !item.isEnabled ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Update the toolbar position when the editor ui should be refreshed.\n\t\tthis.listenTo<EditorUIUpdateEvent>( this.editor.ui, 'update', () => {\n\t\t\tthis._updatePosition();\n\t\t} );\n\n\t\t// Add the toolbar to the common editor contextual balloon.\n\t\tthis._balloon.add( {\n\t\t\tview: this.toolbarView,\n\t\t\tposition: this._getBalloonPositionData(),\n\t\t\tballoonClassName: 'ck-toolbar-container'\n\t\t} );\n\t}\n\n\t/**\n\t * Hides the toolbar.\n\t */\n\tpublic hide(): void {\n\t\tif ( this._balloon.hasView( this.toolbarView ) ) {\n\t\t\tthis.stopListening( this.editor.ui, 'update' );\n\t\t\tthis._balloon.remove( this.toolbarView );\n\t\t}\n\t}\n\n\t/**\n\t * Returns positioning options for the {@link #_balloon}. They control the way balloon is attached\n\t * to the selection.\n\t */\n\tprivate _getBalloonPositionData() {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst viewSelection = viewDocument.selection;\n\n\t\t// Get direction of the selection.\n\t\tconst isBackward = viewDocument.selection.isBackward;\n\n\t\treturn {\n\t\t\t// Because the target for BalloonPanelView is a Rect (not DOMRange), it's geometry will stay fixed\n\t\t\t// as the window scrolls. To let the BalloonPanelView follow such Rect, is must be continuously\n\t\t\t// computed and hence, the target is defined as a function instead of a static value.\n\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/195\n\t\t\ttarget: () => {\n\t\t\t\tconst range = isBackward ? viewSelection.getFirstRange() : viewSelection.getLastRange();\n\t\t\t\tconst rangeRects = Rect.getDomRangeRects( view.domConverter.viewRangeToDom( range! ) );\n\n\t\t\t\t// Select the proper range rect depending on the direction of the selection.\n\t\t\t\tif ( isBackward ) {\n\t\t\t\t\treturn rangeRects[ 0 ];\n\t\t\t\t} else {\n\t\t\t\t\t// Ditch the zero-width \"orphan\" rect in the next line for the forward selection if there's\n\t\t\t\t\t// another one preceding it. It is not rendered as a selection by the web browser anyway.\n\t\t\t\t\t// https://github.com/ckeditor/ckeditor5-ui/issues/308\n\t\t\t\t\tif ( rangeRects.length > 1 && rangeRects[ rangeRects.length - 1 ].width === 0 ) {\n\t\t\t\t\t\trangeRects.pop();\n\t\t\t\t\t}\n\n\t\t\t\t\treturn rangeRects[ rangeRects.length - 1 ];\n\t\t\t\t}\n\t\t\t},\n\t\t\tpositions: this._getBalloonPositions( isBackward )\n\t\t};\n\t}\n\n\t/**\n\t * Updates the position of the {@link #_balloon} to make up for changes:\n\t *\n\t * * in the geometry of the selection it is attached to (e.g. the selection moved in the viewport or expanded or shrunk),\n\t * * or the geometry of the balloon toolbar itself (e.g. the toolbar has grouped or ungrouped some items and it is shorter or longer).\n\t */\n\tprivate _updatePosition() {\n\t\tthis._balloon.updatePosition( this._getBalloonPositionData() );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.stopListening();\n\t\tthis._fireSelectionChangeDebounced.cancel();\n\t\tthis.toolbarView.destroy();\n\t\tthis.focusTracker.destroy();\n\n\t\tif ( this._resizeObserver ) {\n\t\t\tthis._resizeObserver.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Returns toolbar positions for the given direction of the selection.\n\t */\n\tprivate _getBalloonPositions( isBackward: boolean ) {\n\t\tconst isSafariIniOS = env.isSafari && env.isiOS;\n\n\t\t// https://github.com/ckeditor/ckeditor5/issues/7707\n\t\tconst positions = isSafariIniOS ? generatePositions( {\n\t\t\t// 20px when zoomed out. Less then 20px when zoomed in; the \"radius\" of the native selection handle gets\n\t\t\t// smaller as the user zooms in. No less than the default v-offset, though.\n\t\t\theightOffset: Math.max(\n\t\t\t\tBalloonPanelView.arrowHeightOffset,\n\t\t\t\tMath.round( 20 / global.window.visualViewport!.scale )\n\t\t\t)\n\t\t} ) : BalloonPanelView.defaultPositions;\n\n\t\treturn isBackward ? [\n\t\t\tpositions.northWestArrowSouth,\n\t\t\tpositions.northWestArrowSouthWest,\n\t\t\tpositions.northWestArrowSouthEast,\n\t\t\tpositions.northWestArrowSouthMiddleEast,\n\t\t\tpositions.northWestArrowSouthMiddleWest,\n\t\t\tpositions.southWestArrowNorth,\n\t\t\tpositions.southWestArrowNorthWest,\n\t\t\tpositions.southWestArrowNorthEast,\n\t\t\tpositions.southWestArrowNorthMiddleWest,\n\t\t\tpositions.southWestArrowNorthMiddleEast\n\t\t] : [\n\t\t\tpositions.southEastArrowNorth,\n\t\t\tpositions.southEastArrowNorthEast,\n\t\t\tpositions.southEastArrowNorthWest,\n\t\t\tpositions.southEastArrowNorthMiddleEast,\n\t\t\tpositions.southEastArrowNorthMiddleWest,\n\t\t\tpositions.northEastArrowSouth,\n\t\t\tpositions.northEastArrowSouthEast,\n\t\t\tpositions.northEastArrowSouthWest,\n\t\t\tpositions.northEastArrowSouthMiddleEast,\n\t\t\tpositions.northEastArrowSouthMiddleWest\n\t\t];\n\t}\n}\n\n/**\n * Returns \"true\" when the selection has multiple ranges and each range contains a selectable element\n * and nothing else.\n */\nfunction selectionContainsOnlyMultipleSelectables( selection: DocumentSelection, schema: Schema ) {\n\t// It doesn't contain multiple objects if there is only one range.\n\tif ( selection.rangeCount === 1 ) {\n\t\treturn false;\n\t}\n\n\treturn [ ...selection.getRanges() ].every( range => {\n\t\tconst element = range.getContainedElement();\n\n\t\treturn element && schema.isSelectable( element );\n\t} );\n}\n\n/**\n * This event is fired just before the toolbar shows up. Stopping this event will prevent this.\n *\n * @eventName ~BalloonToolbar#show\n */\nexport type BalloonToolbarShowEvent = {\n\tname: 'show';\n\targs: [];\n};\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./blocktoolbar.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/block/blockbuttonview\n */\n\nimport ButtonView from '../../button/buttonview';\n\nimport { toUnit, type Locale } from '@ckeditor/ckeditor5-utils';\n\nimport '../../../theme/components/toolbar/blocktoolbar.css';\n\nconst toPx = toUnit( 'px' );\n\n/**\n * The block button view class.\n *\n * This view represents a button attached next to block element where the selection is anchored.\n *\n * See {@link module:ui/toolbar/block/blocktoolbar~BlockToolbar}.\n */\nexport default class BlockButtonView extends ButtonView {\n\t/**\n\t * Top offset.\n\t *\n\t * @observable\n\t */\n\tdeclare public top: number;\n\n\t/**\n\t * Left offset.\n\t *\n\t * @observable\n\t */\n\tdeclare public left: number;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\t// Hide button on init.\n\t\tthis.isVisible = false;\n\n\t\tthis.isToggleable = true;\n\n\t\tthis.set( 'top', 0 );\n\t\tthis.set( 'left', 0 );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-block-toolbar-button',\n\t\t\t\tstyle: {\n\t\t\t\t\ttop: bind.to( 'top', val => toPx( val ) ),\n\t\t\t\t\tleft: bind.to( 'left', val => toPx( val ) )\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module ui/toolbar/block/blocktoolbar\n */\n\n/* global window */\n\nimport {\n\tPlugin,\n\ticons,\n\ttype Editor\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tRect,\n\tResizeObserver,\n\tgetOptimalPosition,\n\tenv,\n\ttoUnit,\n\ttype ObservableChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport type { DocumentSelectionChangeRangeEvent } from '@ckeditor/ckeditor5-engine';\n\nimport BlockButtonView from './blockbuttonview';\nimport BalloonPanelView from '../../panel/balloon/balloonpanelview';\nimport ToolbarView from '../toolbarview';\nimport clickOutsideHandler from '../../bindings/clickoutsidehandler';\nimport normalizeToolbarConfig from '../normalizetoolbarconfig';\n\nimport type { ButtonExecuteEvent } from '../../button/button';\nimport type { EditorUIUpdateEvent } from '../../editorui/editorui';\n\nconst toPx = toUnit( 'px' );\nconst { pilcrow } = icons;\n\n/**\n * The block toolbar plugin.\n *\n * This plugin provides a button positioned next to the block of content where the selection is anchored.\n * Upon clicking the button, a dropdown providing access to editor features shows up, as configured in\n * {@link module:core/editor/editorconfig~EditorConfig#blockToolbar}.\n *\n * By default, the button is displayed next to all elements marked in {@link module:engine/model/schema~Schema}\n * as `$block` for which the toolbar provides at least one option.\n *\n * By default, the button is attached so its right boundary is touching the\n * {@link module:engine/view/editableelement~EditableElement}:\n *\n * ```\n *  __ |\n * |  ||  This is a block of content that the\n *  ¯¯ |  button is attached to. This is a\n *     |  block of content that the button is\n *     |  attached to.\n * ```\n *\n * The position of the button can be adjusted using the CSS `transform` property:\n *\n * ```css\n * .ck-block-toolbar-button {\n * \ttransform: translateX( -10px );\n * }\n * ```\n *\n * ```\n *  __   |\n * |  |  |  This is a block of content that the\n *  ¯¯   |  button is attached to. This is a\n *       |  block of content that the button is\n *       |  attached to.\n * ```\n *\n * **Note**: If you plan to run the editor in a right–to–left (RTL) language, keep in mind the button\n * will be attached to the **right** boundary of the editable area. In that case, make sure the\n * CSS position adjustment works properly by adding the following styles:\n *\n * ```css\n * .ck[dir=\"rtl\"] .ck-block-toolbar-button {\n * \ttransform: translateX( 10px );\n * }\n * ```\n */\nexport default class BlockToolbar extends Plugin {\n\t/**\n\t * The toolbar view.\n\t */\n\tpublic readonly toolbarView: ToolbarView;\n\n\t/**\n\t * The balloon panel view, containing the {@link #toolbarView}.\n\t */\n\tpublic readonly panelView: BalloonPanelView;\n\n\t/**\n\t * The button view that opens the {@link #toolbarView}.\n\t */\n\tpublic readonly buttonView: BlockButtonView;\n\n\t/**\n\t * An instance of the resize observer that allows to respond to changes in editable's geometry\n\t * so the toolbar can stay within its boundaries (and group toolbar items that do not fit).\n\t *\n\t * **Note**: Used only when `shouldNotGroupWhenFull` was **not** set in the\n\t * {@link module:core/editor/editorconfig~EditorConfig#blockToolbar configuration}.\n\t *\n\t * **Note:** Created in {@link #afterInit}.\n\t */\n\tprivate _resizeObserver: ResizeObserver | null = null;\n\n\t/**\n\t * A cached and normalized `config.blockToolbar` object.\n\t */\n\tprivate _blockToolbarConfig: ReturnType<typeof normalizeToolbarConfig>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BlockToolbar' {\n\t\treturn 'BlockToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._blockToolbarConfig = normalizeToolbarConfig( this.editor.config.get( 'blockToolbar' ) );\n\t\tthis.toolbarView = this._createToolbarView();\n\t\tthis.panelView = this._createPanelView();\n\t\tthis.buttonView = this._createButtonView();\n\n\t\t// Close the #panelView upon clicking outside of the plugin UI.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this.panelView,\n\t\t\tcontextElements: [ this.panelView.element!, this.buttonView.element! ],\n\t\t\tactivator: () => this.panelView.isVisible,\n\t\t\tcallback: () => this._hidePanel()\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Hides panel on a direct selection change.\n\t\tthis.listenTo<DocumentSelectionChangeRangeEvent>( editor.model.document.selection, 'change:range', ( evt, data ) => {\n\t\t\tif ( data.directChange ) {\n\t\t\t\tthis._hidePanel();\n\t\t\t}\n\t\t} );\n\n\t\tthis.listenTo<EditorUIUpdateEvent>( editor.ui, 'update', () => this._updateButton() );\n\t\t// `low` priority is used because of https://github.com/ckeditor/ckeditor5-core/issues/133.\n\t\tthis.listenTo<ObservableChangeEvent>( editor, 'change:isReadOnly', () => this._updateButton(), { priority: 'low' } );\n\t\tthis.listenTo<ObservableChangeEvent>( editor.ui.focusTracker, 'change:isFocused', () => this._updateButton() );\n\n\t\t// Reposition button on resize.\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( this.buttonView, 'change:isVisible', ( evt, name, isVisible ) => {\n\t\t\tif ( isVisible ) {\n\t\t\t\t// Keep correct position of button and panel on window#resize.\n\t\t\t\tthis.buttonView.listenTo( window, 'resize', () => this._updateButton() );\n\t\t\t} else {\n\t\t\t\t// Stop repositioning button when is hidden.\n\t\t\t\tthis.buttonView.stopListening( window, 'resize' );\n\n\t\t\t\t// Hide the panel when the button disappears.\n\t\t\t\tthis._hidePanel();\n\t\t\t}\n\t\t} );\n\n\t\t// Register the toolbar so it becomes available for Alt+F10 and Esc navigation.\n\t\teditor.ui.addToolbar( this.toolbarView, {\n\t\t\tbeforeFocus: () => this._showPanel(),\n\t\t\tafterBlur: () => this._hidePanel()\n\t\t} );\n\t}\n\n\t/**\n\t * Fills the toolbar with its items based on the configuration.\n\t *\n\t * **Note:** This needs to be done after all plugins are ready.\n\t */\n\tpublic afterInit(): void {\n\t\tconst factory = this.editor.ui.componentFactory;\n\t\tconst config = this._blockToolbarConfig;\n\n\t\tthis.toolbarView.fillFromConfig( config, factory );\n\n\t\t// Hide panel before executing each button in the panel.\n\t\tfor ( const item of this.toolbarView.items ) {\n\t\t\titem.on<ButtonExecuteEvent>( 'execute', () => this._hidePanel( true ), { priority: 'high' } );\n\t\t}\n\n\t\tif ( !config.shouldNotGroupWhenFull ) {\n\t\t\tthis.listenTo( this.editor, 'ready', () => {\n\t\t\t\tconst editableElement = this.editor.ui.view.editable.element!;\n\n\t\t\t\t// Set #toolbarView's max-width just after the initialization and update it on the editable resize.\n\t\t\t\tthis._resizeObserver = new ResizeObserver( editableElement, () => {\n\t\t\t\t\tthis.toolbarView.maxWidth = this._getToolbarMaxWidth();\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tthis.panelView.destroy();\n\t\tthis.buttonView.destroy();\n\t\tthis.toolbarView.destroy();\n\n\t\tif ( this._resizeObserver ) {\n\t\t\tthis._resizeObserver.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Creates the {@link #toolbarView}.\n\t */\n\tprivate _createToolbarView(): ToolbarView {\n\t\tconst t = this.editor.locale.t;\n\t\tconst shouldGroupWhenFull = !this._blockToolbarConfig.shouldNotGroupWhenFull;\n\t\tconst toolbarView = new ToolbarView( this.editor.locale, {\n\t\t\tshouldGroupWhenFull,\n\t\t\tisFloating: true\n\t\t} );\n\n\t\ttoolbarView.ariaLabel = t( 'Editor block content toolbar' );\n\n\t\t// When toolbar lost focus then panel should hide.\n\t\ttoolbarView.focusTracker.on( 'change:isFocused', ( evt, name, is ) => {\n\t\t\tif ( !is ) {\n\t\t\t\tthis._hidePanel();\n\t\t\t}\n\t\t} );\n\n\t\treturn toolbarView;\n\t}\n\n\t/**\n\t * Creates the {@link #panelView}.\n\t */\n\tprivate _createPanelView(): BalloonPanelView {\n\t\tconst editor = this.editor;\n\t\tconst panelView = new BalloonPanelView( editor.locale );\n\n\t\tpanelView.content.add( this.toolbarView );\n\t\tpanelView.class = 'ck-toolbar-container';\n\t\teditor.ui.view.body.add( panelView );\n\t\teditor.ui.focusTracker.add( panelView.element! );\n\n\t\t// Close #panelView on `Esc` press.\n\t\tthis.toolbarView.keystrokes.set( 'Esc', ( evt, cancel ) => {\n\t\t\tthis._hidePanel( true );\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn panelView;\n\t}\n\n\t/**\n\t * Creates the {@link #buttonView}.\n\t */\n\tprivate _createButtonView(): BlockButtonView {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst buttonView = new BlockButtonView( editor.locale );\n\t\tconst bind = buttonView.bindTemplate;\n\n\t\tbuttonView.set( {\n\t\t\tlabel: t( 'Edit block' ),\n\t\t\ticon: pilcrow,\n\t\t\twithText: false\n\t\t} );\n\n\t\t// Note that this piece over here overrides the default mousedown logic in ButtonView\n\t\t// to make it work with BlockToolbar. See the implementation of the ButtonView class to learn more.\n\t\tbuttonView.extendTemplate( {\n\t\t\ton: {\n\t\t\t\tmousedown: bind.to( evt => {\n\t\t\t\t\t// On Safari we have to force the focus on a button on click as it's the only browser\n\t\t\t\t\t// that doesn't do that automatically. See #12115.\n\t\t\t\t\tif ( env.isSafari && this.panelView.isVisible ) {\n\t\t\t\t\t\tthis.toolbarView.focus();\n\t\t\t\t\t}\n\n\t\t\t\t\t// Workaround to #12184, see https://github.com/ckeditor/ckeditor5/issues/12184#issuecomment-1199147964.\n\t\t\t\t\tevt.preventDefault();\n\t\t\t\t} )\n\t\t\t}\n\t\t} );\n\n\t\t// Bind the panelView observable properties to the buttonView.\n\t\tbuttonView.bind( 'isOn' ).to( this.panelView, 'isVisible' );\n\t\tbuttonView.bind( 'tooltip' ).to( this.panelView, 'isVisible', isVisible => !isVisible );\n\n\t\t// Toggle the panelView upon buttonView#execute.\n\t\tthis.listenTo<ButtonExecuteEvent>( buttonView, 'execute', () => {\n\t\t\tif ( !this.panelView.isVisible ) {\n\t\t\t\tthis._showPanel();\n\t\t\t} else {\n\t\t\t\tthis._hidePanel( true );\n\t\t\t}\n\t\t} );\n\n\t\teditor.ui.view.body.add( buttonView );\n\t\teditor.ui.focusTracker.add( buttonView.element! );\n\n\t\treturn buttonView;\n\t}\n\n\t/**\n\t * Shows or hides the button.\n\t * When all the conditions for displaying the button are matched, it shows the button. Hides otherwise.\n\t */\n\tprivate _updateButton() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\n\t\t// Hides the button when the editor is not focused.\n\t\tif ( !editor.ui.focusTracker.isFocused ) {\n\t\t\tthis._hideButton();\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Hides the button when the editor switches to the read-only mode.\n\t\tif ( editor.isReadOnly ) {\n\t\t\tthis._hideButton();\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Get the first selected block, button will be attached to this element.\n\t\tconst modelTarget = Array.from( model.document.selection.getSelectedBlocks() )[ 0 ];\n\n\t\t// Hides the button when there is no enabled item in toolbar for the current block element.\n\t\tif ( !modelTarget || Array.from( this.toolbarView.items ).every( ( item: any ) => !item.isEnabled ) ) {\n\t\t\tthis._hideButton();\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Get DOM target element.\n\t\tconst domTarget = view.domConverter.mapViewToDom( editor.editing.mapper.toViewElement( modelTarget )! );\n\n\t\t// Show block button.\n\t\tthis.buttonView.isVisible = true;\n\n\t\t// Attach block button to target DOM element.\n\t\tthis._attachButtonToElement( domTarget as any );\n\n\t\t// When panel is opened then refresh it position to be properly aligned with block button.\n\t\tif ( this.panelView.isVisible ) {\n\t\t\tthis._showPanel();\n\t\t}\n\t}\n\n\t/**\n\t * Hides the button.\n\t */\n\tprivate _hideButton() {\n\t\tthis.buttonView.isVisible = false;\n\t}\n\n\t/**\n\t * Shows the {@link #toolbarView} attached to the {@link #buttonView}.\n\t * If the toolbar is already visible, then it simply repositions it.\n\t */\n\tprivate _showPanel() {\n\t\t// Usually, the only way to show the toolbar is by pressing the block button. It makes it impossible for\n\t\t// the toolbar to show up when the button is invisible (feature does not make sense for the selection then).\n\t\t// The toolbar navigation using Alt+F10 does not access the button but shows the panel directly using this method.\n\t\t// So we need to check whether this is possible first.\n\t\tif ( !this.buttonView.isVisible ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst wasVisible = this.panelView.isVisible;\n\n\t\t// So here's the thing: If there was no initial panelView#show() or these two were in different order, the toolbar\n\t\t// positioning will break in RTL editors. Weird, right? What you show know is that the toolbar\n\t\t// grouping works thanks to:\n\t\t//\n\t\t// * the ResizeObserver, which kicks in as soon as the toolbar shows up in DOM (becomes visible again).\n\t\t// * the observable ToolbarView#maxWidth, which triggers re-grouping when changed.\n\t\t//\n\t\t// Here are the possible scenarios:\n\t\t//\n\t\t// 1. (WRONG ❌) If the #maxWidth is set when the toolbar is invisible, it won't affect item grouping (no DOMRects, no grouping).\n\t\t//    Then, when panelView.pin() is called, the position of the toolbar will be calculated for the old\n\t\t//    items grouping state, and when finally ResizeObserver kicks in (hey, the toolbar is visible now, right?)\n\t\t//    it will group/ungroup some items and the length of the toolbar will change. But since in RTL the toolbar\n\t\t//    is attached on the right side and the positioning uses CSS \"left\", it will result in the toolbar shifting\n\t\t//    to the left and being displayed in the wrong place.\n\t\t// 2. (WRONG ❌) If the panelView.pin() is called first and #maxWidth set next, then basically the story repeats. The balloon\n\t\t//    calculates the position for the old toolbar grouping state, then the toolbar re-groups items and because\n\t\t//    it is positioned using CSS \"left\" it will move.\n\t\t// 3. (RIGHT ✅) We show the panel first (the toolbar does re-grouping but it does not matter), then the #maxWidth\n\t\t//    is set allowing the toolbar to re-group again and finally panelView.pin() does the positioning when the\n\t\t//    items grouping state is stable and final.\n\t\t//\n\t\t// https://github.com/ckeditor/ckeditor5/issues/6449, https://github.com/ckeditor/ckeditor5/issues/6575\n\t\tthis.panelView.show();\n\t\tthis.toolbarView.maxWidth = this._getToolbarMaxWidth();\n\n\t\tthis.panelView.pin( {\n\t\t\ttarget: this.buttonView.element!,\n\t\t\tlimiter: this.editor.ui.getEditableElement()\n\t\t} );\n\n\t\tif ( !wasVisible ) {\n\t\t\t( this.toolbarView.items.get( 0 ) as any ).focus();\n\t\t}\n\t}\n\n\t/**\n\t * Hides the {@link #toolbarView}.\n\t *\n\t * @param focusEditable When `true`, the editable will be focused after hiding the panel.\n\t */\n\tprivate _hidePanel( focusEditable?: boolean ) {\n\t\tthis.panelView.isVisible = false;\n\n\t\tif ( focusEditable ) {\n\t\t\tthis.editor.editing.view.focus();\n\t\t}\n\t}\n\n\t/**\n\t * Attaches the {@link #buttonView} to the target block of content.\n\t *\n\t * @param targetElement Target element.\n\t */\n\tprivate _attachButtonToElement( targetElement: HTMLElement ) {\n\t\tconst contentStyles = window.getComputedStyle( targetElement );\n\n\t\tconst editableRect = new Rect( this.editor.ui.getEditableElement()! );\n\t\tconst contentPaddingTop = parseInt( contentStyles.paddingTop, 10 );\n\t\t// When line height is not an integer then thread it as \"normal\".\n\t\t// MDN says that 'normal' == ~1.2 on desktop browsers.\n\t\tconst contentLineHeight = parseInt( contentStyles.lineHeight, 10 ) || parseInt( contentStyles.fontSize, 10 ) * 1.2;\n\n\t\tconst position = getOptimalPosition( {\n\t\t\telement: this.buttonView.element!,\n\t\t\ttarget: targetElement,\n\t\t\tpositions: [\n\t\t\t\t( contentRect, buttonRect ) => {\n\t\t\t\t\tlet left;\n\n\t\t\t\t\tif ( this.editor.locale.uiLanguageDirection === 'ltr' ) {\n\t\t\t\t\t\tleft = editableRect.left - buttonRect.width;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tleft = editableRect.right;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn {\n\t\t\t\t\t\ttop: contentRect.top + contentPaddingTop + ( contentLineHeight - buttonRect.height ) / 2,\n\t\t\t\t\t\tleft\n\t\t\t\t\t};\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\tthis.buttonView.top = position.top;\n\t\tthis.buttonView.left = position.left;\n\t}\n\n\t/**\n\t * Gets the {@link #toolbarView} max-width, based on\n\t * editable width plus distance between farthest edge of the {@link #buttonView} and the editable.\n\t *\n\t * @returns A maximum width that toolbar can have, in pixels.\n\t */\n\tprivate _getToolbarMaxWidth() {\n\t\tconst editableElement = this.editor.ui.view.editable.element!;\n\t\tconst editableRect = new Rect( editableElement );\n\t\tconst buttonRect = new Rect( this.buttonView.element! );\n\t\tconst isRTL = this.editor.locale.uiLanguageDirection === 'rtl';\n\t\tconst offset = isRTL ? ( buttonRect.left - editableRect.right ) + buttonRect.width : editableRect.left - buttonRect.left;\n\n\t\treturn toPx( editableRect.width + offset );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/watchdog\n */\n\n/* globals window */\n\n// eslint-disable-next-line ckeditor5-rules/no-cross-package-imports\nimport type { CKEditorError } from 'ckeditor5/src/utils';\nimport type { EditorWatchdogRestartEvent } from './editorwatchdog';\nimport type { ContextWatchdogItemErrorEvent, ContextWatchdogItemRestartEvent } from './contextwatchdog';\n\n/**\n * An abstract watchdog class that handles most of the error handling process and the state of the underlying component.\n *\n * See the {@glink features/watchdog Watchdog feature guide} to learn the rationale behind it and how to use it.\n *\n * @internal\n */\nexport default abstract class Watchdog {\n\t/**\n\t * An array of crashes saved as an object with the following properties:\n\t *\n\t * * `message`: `String`,\n\t * * `stack`: `String`,\n\t * * `date`: `Number`,\n\t * * `filename`: `String | undefined`,\n\t * * `lineno`: `Number | undefined`,\n\t * * `colno`: `Number | undefined`,\n\t */\n\tpublic readonly crashes: Array<{\n\t\tmessage: string;\n\t\tstack?: string;\n\t\tdate: number;\n\n\t\t// `evt.filename`, `evt.lineno` and `evt.colno` are available only in ErrorEvent events\n\t\tfilename?: string;\n\t\tlineno?: number;\n\t\tcolno?: number;\n\t}> = [];\n\n\t/**\n\t * Specifies the state of the item watched by the watchdog. The state can be one of the following values:\n\t *\n\t * * `initializing` &ndash; Before the first initialization, and after crashes, before the item is ready.\n\t * * `ready` &ndash; A state when the user can interact with the item.\n\t * * `crashed` &ndash; A state when an error occurs. It quickly changes to `initializing` or `crashedPermanently`\n\t * depending on how many and how frequent errors have been caught recently.\n\t * * `crashedPermanently` &ndash; A state when the watchdog stops reacting to errors and keeps the item it is watching crashed,\n\t * * `destroyed` &ndash; A state when the item is manually destroyed by the user after calling `watchdog.destroy()`.\n\t */\n\tpublic state: WatchdogState = 'initializing';\n\n\t/**\n\t * @see module:watchdog/watchdog~WatchdogConfig\n\t */\n\tprivate _crashNumberLimit: number;\n\n\t/**\n\t * Returns the result of the `Date.now()` call. It can be overridden in tests to mock time as some popular\n\t * approaches like `sinon.useFakeTimers()` do not work well with error handling.\n\t */\n\tprivate _now = Date.now;\n\n\t/**\n\t * @see module:watchdog/watchdog~WatchdogConfig\n\t */\n\tprivate _minimumNonErrorTimePeriod: number;\n\n\t/**\n\t * Checks if the event error comes from the underlying item and restarts the item.\n\t */\n\tprivate _boundErrorHandler: ( evt: ErrorEvent | PromiseRejectionEvent ) => void;\n\n\t/**\n\t * The method responsible for restarting the watched item.\n\t */\n\tprotected abstract _restart(): Promise<unknown>;\n\n\t/**\n\t * Traverses the error context and the watched item to find out whether the error should\n\t * be handled by the given item.\n\t *\n\t * @internal\n\t */\n\tpublic abstract _isErrorComingFromThisItem( error: CKEditorError ): boolean;\n\n\t/**\n\t * The watched item.\n\t *\n\t * @internal\n\t */\n\tpublic abstract get _item(): unknown;\n\n\t/**\n\t * A dictionary of event emitter listeners.\n\t */\n\tprivate _listeners: Record<string, Array<( ...args: any ) => void>>;\n\n\t/**\n\t * @param {module:watchdog/watchdog~WatchdogConfig} config The watchdog plugin configuration.\n\t */\n\tconstructor( config: WatchdogConfig ) {\n\t\tthis.crashes = [];\n\t\tthis._crashNumberLimit = typeof config.crashNumberLimit === 'number' ? config.crashNumberLimit : 3;\n\t\tthis._minimumNonErrorTimePeriod = typeof config.minimumNonErrorTimePeriod === 'number' ? config.minimumNonErrorTimePeriod : 5000;\n\n\t\tthis._boundErrorHandler = evt => {\n\t\t\t// `evt.error` is exposed by EventError while `evt.reason` is available in PromiseRejectionEvent.\n\t\t\tconst error = 'error' in evt ? evt.error : evt.reason;\n\n\t\t\t// Note that `evt.reason` might be everything that is in the promise rejection.\n\t\t\t// Similarly everything that is thrown lands in `evt.error`.\n\t\t\tif ( error instanceof Error ) {\n\t\t\t\tthis._handleError( error, evt );\n\t\t\t}\n\t\t};\n\n\t\tthis._listeners = {};\n\n\t\tif ( !( this as any )._restart ) {\n\t\t\tthrow new Error(\n\t\t\t\t'The Watchdog class was split into the abstract `Watchdog` class and the `EditorWatchdog` class. ' +\n\t\t\t\t'Please, use `EditorWatchdog` if you have used the `Watchdog` class previously.'\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * Destroys the watchdog and releases the resources.\n\t */\n\tpublic destroy(): void {\n\t\tthis._stopErrorHandling();\n\n\t\tthis._listeners = {};\n\t}\n\n\t/**\n\t * Starts listening to a specific event name by registering a callback that will be executed\n\t * whenever an event with a given name fires.\n\t *\n\t * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation.\n\t *\n\t * @param eventName The event name.\n\t * @param callback A callback which will be added to event listeners.\n\t */\n\tpublic on<K extends keyof EventMap>( eventName: K, callback: EventCallback<K> ): void {\n\t\tif ( !this._listeners[ eventName ] ) {\n\t\t\tthis._listeners[ eventName ] = [];\n\t\t}\n\n\t\tthis._listeners[ eventName ].push( callback );\n\t}\n\n\t/**\n\t * Stops listening to the specified event name by removing the callback from event listeners.\n\t *\n\t * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation.\n\t *\n\t * @param eventName The event name.\n\t * @param callback A callback which will be removed from event listeners.\n\t */\n\tpublic off( eventName: keyof EventMap, callback: unknown ): void {\n\t\tthis._listeners[ eventName ] = this._listeners[ eventName ]\n\t\t\t.filter( cb => cb !== callback );\n\t}\n\n\t/**\n\t * Fires an event with a given event name and arguments.\n\t *\n\t * Note that this method differs from the CKEditor 5's default `EventEmitterMixin` implementation.\n\t */\n\tprotected _fire<K extends keyof EventMap>( eventName: K, ...args: EventArgs<K> ): void {\n\t\tconst callbacks = this._listeners[ eventName ] || [];\n\n\t\tfor ( const callback of callbacks ) {\n\t\t\tcallback.apply( this, [ null, ...args ] );\n\t\t}\n\t}\n\n\t/**\n\t * Starts error handling by attaching global error handlers.\n\t */\n\tprotected _startErrorHandling(): void {\n\t\twindow.addEventListener( 'error', this._boundErrorHandler );\n\t\twindow.addEventListener( 'unhandledrejection', this._boundErrorHandler );\n\t}\n\n\t/**\n\t * Stops error handling by detaching global error handlers.\n\t */\n\tprotected _stopErrorHandling(): void {\n\t\twindow.removeEventListener( 'error', this._boundErrorHandler );\n\t\twindow.removeEventListener( 'unhandledrejection', this._boundErrorHandler );\n\t}\n\n\t/**\n\t * Checks if an error comes from the watched item and restarts it.\n\t * It reacts to {@link module:utils/ckeditorerror~CKEditorError `CKEditorError` errors} only.\n\t *\n\t * @fires error\n\t * @param error Error.\n\t * @param evt An error event.\n\t */\n\tprivate _handleError( error: Error, evt: ErrorEvent | PromiseRejectionEvent ): void {\n\t\t// @if CK_DEBUG // const err = error as CKEditorError;\n\t\t// @if CK_DEBUG // if ( err.is && err.is( 'CKEditorError' ) && err.context === undefined ) {\n\t\t// @if CK_DEBUG // console.warn( 'The error is missing its context and Watchdog cannot restart the proper item.' );\n\t\t// @if CK_DEBUG // }\n\n\t\tif ( this._shouldReactToError( error ) ) {\n\t\t\tthis.crashes.push( {\n\t\t\t\tmessage: error.message,\n\t\t\t\tstack: error.stack,\n\n\t\t\t\t// `evt.filename`, `evt.lineno` and `evt.colno` are available only in ErrorEvent events\n\t\t\t\tfilename: evt instanceof ErrorEvent ? evt.filename : undefined,\n\t\t\t\tlineno: evt instanceof ErrorEvent ? evt.lineno : undefined,\n\t\t\t\tcolno: evt instanceof ErrorEvent ? evt.colno : undefined,\n\t\t\t\tdate: this._now()\n\t\t\t} );\n\n\t\t\tconst causesRestart = this._shouldRestart();\n\n\t\t\tthis.state = 'crashed';\n\t\t\tthis._fire( 'stateChange' );\n\t\t\tthis._fire( 'error', { error, causesRestart } );\n\n\t\t\tif ( causesRestart ) {\n\t\t\t\tthis._restart();\n\t\t\t} else {\n\t\t\t\tthis.state = 'crashedPermanently';\n\t\t\t\tthis._fire( 'stateChange' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Checks whether an error should be handled by the watchdog.\n\t *\n\t * @param error An error that was caught by the error handling process.\n\t */\n\tprivate _shouldReactToError( error: Error ): boolean {\n\t\treturn (\n\t\t\t( error as any ).is &&\n\t\t\t( error as any ).is( 'CKEditorError' ) &&\n\t\t\t( error as CKEditorError ).context !== undefined &&\n\n\t\t\t// In some cases the watched item should not be restarted - e.g. during the item initialization.\n\t\t\t// That's why the `null` was introduced as a correct error context which does cause restarting.\n\t\t\t( error as CKEditorError ).context !== null &&\n\n\t\t\t// Do not react to errors if the watchdog is in states other than `ready`.\n\t\t\tthis.state === 'ready' &&\n\n\t\t\tthis._isErrorComingFromThisItem( error as CKEditorError )\n\t\t);\n\t}\n\n\t/**\n\t * Checks if the watchdog should restart the underlying item.\n\t */\n\tprivate _shouldRestart(): boolean {\n\t\tif ( this.crashes.length <= this._crashNumberLimit ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst lastErrorTime = this.crashes[ this.crashes.length - 1 ].date;\n\t\tconst firstMeaningfulErrorTime = this.crashes[ this.crashes.length - 1 - this._crashNumberLimit ].date;\n\n\t\tconst averageNonErrorTimePeriod = ( lastErrorTime - firstMeaningfulErrorTime ) / this._crashNumberLimit;\n\n\t\treturn averageNonErrorTimePeriod > this._minimumNonErrorTimePeriod;\n\t}\n}\n\n/**\n * Fired when a new {@link module:utils/ckeditorerror~CKEditorError `CKEditorError`} error connected to the watchdog instance occurs\n * and the watchdog will react to it.\n *\n * ```ts\n * watchdog.on( 'error', ( evt, { error, causesRestart } ) => {\n * \tconsole.log( 'An error occurred.' );\n * } );\n * ```\n *\n * @eventName ~Watchdog#error\n */\nexport type WatchdogErrorEvent = {\n\tname: 'error';\n\targs: [ WatchdogErrorEventData ];\n};\n\n/**\n * The `error` event data.\n */\nexport type WatchdogErrorEventData = {\n\terror: Error;\n\tcausesRestart: boolean;\n};\n\n/**\n * Fired when the watchdog state changed.\n *\n * @eventName ~Watchdog#stateChange\n */\nexport type WatchdogStateChangeEvent = {\n\tname: 'stateChange';\n\targs: [];\n};\n\n/**\n * The map of watchdog events.\n */\nexport interface EventMap {\n\tstateChange: WatchdogStateChangeEvent;\n\terror: WatchdogErrorEvent;\n\trestart: EditorWatchdogRestartEvent;\n\titemError: ContextWatchdogItemErrorEvent;\n\titemRestart: ContextWatchdogItemRestartEvent;\n}\n\n/**\n * Utility type that gets the arguments type for the given event.\n */\nexport type EventArgs<K extends keyof EventMap> = EventMap[ K ][ 'args' ];\n\n/**\n * Utility type that gets the callback type for the given event.\n */\nexport type EventCallback<K extends keyof EventMap> = ( evt: null, ...args: EventArgs<K> ) => void;\n\n/**\n * The watchdog plugin configuration.\n */\nexport interface WatchdogConfig {\n\n\t/**\n\t * A threshold specifying the number of watched item crashes\n\t * when the watchdog stops restarting the item in case of errors.\n\t * After this limit is reached and the time between the last errors is shorter than `minimumNonErrorTimePeriod`,\n\t * the watchdog changes its state to `crashedPermanently` and it stops restarting the item. This prevents an infinite restart loop.\n\t *\n\t * @default 3\n\t */\n\tcrashNumberLimit?: number;\n\n\t/**\n\t * An average number of milliseconds between the last watched item errors\n\t * (defaults to 5000). When the period of time between errors is lower than that and the `crashNumberLimit` is also reached,\n\t * the watchdog changes its state to `crashedPermanently` and it stops restarting the item. This prevents an infinite restart loop.\n\t *\n\t * @default 5000\n\t */\n\tminimumNonErrorTimePeriod?: number;\n\n\t/**\n\t * A minimum number of milliseconds between saving the editor data internally (defaults to 5000).\n\t * Note that for large documents this might impact the editor performance.\n\t *\n\t * @default 5000\n\t */\n\tsaveInterval?: number;\n}\n\n/**\n * Specifies the state of the item watched by the watchdog.\n */\nexport type WatchdogState = 'initializing' | 'ready' | 'crashed' | 'crashedPermanently' | 'destroyed';\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/utils/getsubnodes\n */\n\n/* globals EventTarget, Event */\n\nexport default function getSubNodes( head: unknown, excludedProperties = new Set() ): Set<unknown> {\n\tconst nodes = [ head ];\n\n\t// @if CK_DEBUG_WATCHDOG // const prevNodeMap = new Map();\n\n\t// Nodes are stored to prevent infinite looping.\n\tconst subNodes = new Set();\n\tlet nodeIndex = 0;\n\n\twhile ( nodes.length > nodeIndex ) {\n\t\t// Incrementing the iterator is much faster than changing size of the array with Array.prototype.shift().\n\t\tconst node = nodes[ nodeIndex++ ];\n\n\t\tif ( subNodes.has( node ) || !shouldNodeBeIncluded( node ) || excludedProperties.has( node ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tsubNodes.add( node );\n\n\t\t// Handle arrays, maps, sets, custom collections that implements `[ Symbol.iterator ]()`, etc.\n\t\tif ( Symbol.iterator in node ) {\n\t\t\t// The custom editor iterators might cause some problems if the editor is crashed.\n\t\t\ttry {\n\t\t\t\tfor ( const n of node as Iterable<unknown> ) {\n\t\t\t\t\tnodes.push( n );\n\n\t\t\t\t\t// @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( n ) ) {\n\t\t\t\t\t// @if CK_DEBUG_WATCHDOG // \tprevNodeMap.set( n, node );\n\t\t\t\t\t// @if CK_DEBUG_WATCHDOG // }\n\t\t\t\t}\n\t\t\t} catch ( err ) {\n\t\t\t\t// Do not log errors for broken structures\n\t\t\t\t// since we are in the error handling process already.\n\t\t\t\t// eslint-disable-line no-empty\n\t\t\t}\n\t\t} else {\n\t\t\tfor ( const key in node ) {\n\t\t\t\t// We share a reference via the protobuf library within the editors,\n\t\t\t\t// hence the shared value should be skipped. Although, it's not a perfect\n\t\t\t\t// solution since new places like that might occur in the future.\n\t\t\t\tif ( key === 'defaultValue' ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tnodes.push( node[ key ] );\n\n\t\t\t\t// @if CK_DEBUG_WATCHDOG // if ( !prevNodeMap.has( node[ key ] ) ) {\n\t\t\t\t// @if CK_DEBUG_WATCHDOG // \tprevNodeMap.set( node[ key ], node );\n\t\t\t\t// @if CK_DEBUG_WATCHDOG // }\n\t\t\t}\n\t\t}\n\t}\n\n\t// @if CK_DEBUG_WATCHDOG // return { subNodes, prevNodeMap } as any;\n\n\treturn subNodes;\n}\n\nfunction shouldNodeBeIncluded( node: unknown ): node is Record<string, unknown> | Iterable<unknown> {\n\tconst type = Object.prototype.toString.call( node );\n\tconst typeOfNode = typeof node;\n\n\treturn !(\n\t\ttypeOfNode === 'number' ||\n\t\ttypeOfNode === 'boolean' ||\n\t\ttypeOfNode === 'string' ||\n\t\ttypeOfNode === 'symbol' ||\n\t\ttypeOfNode === 'function' ||\n\t\ttype === '[object Date]' ||\n\t\ttype === '[object RegExp]' ||\n\t\ttype === '[object Module]' ||\n\n\t\tnode === undefined ||\n\t\tnode === null ||\n\n\t\t// This flag is meant to exclude singletons shared across editor instances. So when an error is thrown in one editor,\n\t\t// the other editors connected through the reference to the same singleton are not restarted. This is a temporary workaround\n\t\t// until a better solution is found.\n\t\t// More in https://github.com/ckeditor/ckeditor5/issues/12292.\n\t\t( node as any )._watchdogExcluded ||\n\n\t\t// Skip native DOM objects, e.g. Window, nodes, events, etc.\n\t\tnode instanceof EventTarget ||\n\t\tnode instanceof Event\n\t);\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/utils/areconnectedthroughproperties\n */\n\n/* globals console */\n\nimport getSubNodes from './getsubnodes';\n\n/**\n * Traverses both structures to find out whether there is a reference that is shared between both structures.\n */\nexport default function areConnectedThroughProperties( target1: unknown, target2: unknown, excludedNodes = new Set() ): boolean {\n\tif ( target1 === target2 && isObject( target1 ) ) {\n\t\treturn true;\n\t}\n\n\t// @if CK_DEBUG_WATCHDOG // return checkConnectionBetweenProps( target1, target2, excludedNodes );\n\n\tconst subNodes1 = getSubNodes( target1, excludedNodes );\n\tconst subNodes2 = getSubNodes( target2, excludedNodes );\n\n\tfor ( const node of subNodes1 ) {\n\t\tif ( subNodes2.has( node ) ) {\n\t\t\treturn true;\n\t\t}\n\t}\n\n\treturn false;\n}\n\n/* istanbul ignore next -- @preserve */\n// eslint-disable-next-line\nfunction checkConnectionBetweenProps( target1: unknown, target2: unknown, excludedNodes: any ) {\n\tconst { subNodes: subNodes1, prevNodeMap: prevNodeMap1 } = getSubNodes( target1, excludedNodes.subNodes ) as any;\n\tconst { subNodes: subNodes2, prevNodeMap: prevNodeMap2 } = getSubNodes( target2, excludedNodes.subNodes ) as any;\n\n\tfor ( const sharedNode of subNodes1 ) {\n\t\tif ( subNodes2.has( sharedNode ) ) {\n\t\t\tconst connection = [];\n\n\t\t\tconnection.push( sharedNode );\n\n\t\t\tlet node = prevNodeMap1.get( sharedNode );\n\n\t\t\twhile ( node && node !== target1 ) {\n\t\t\t\tconnection.push( node );\n\t\t\t\tnode = prevNodeMap1.get( node );\n\t\t\t}\n\n\t\t\tnode = prevNodeMap2.get( sharedNode );\n\n\t\t\twhile ( node && node !== target2 ) {\n\t\t\t\tconnection.unshift( node );\n\t\t\t\tnode = prevNodeMap2.get( node );\n\t\t\t}\n\n\t\t\tconsole.log( '--------' );\n\t\t\tconsole.log( { target1 } );\n\t\t\tconsole.log( { sharedNode } );\n\t\t\tconsole.log( { target2 } );\n\t\t\tconsole.log( { connection } );\n\n\t\t\treturn true;\n\t\t}\n\t}\n\n\treturn false;\n}\n\nfunction isObject( structure: unknown ): boolean {\n\treturn typeof structure === 'object' && structure !== null;\n}\n","import debounce from './debounce.js';\nimport isObject from './isObject.js';\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n *  Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n *  Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\nfunction throttle(func, wait, options) {\n  var leading = true,\n      trailing = true;\n\n  if (typeof func != 'function') {\n    throw new TypeError(FUNC_ERROR_TEXT);\n  }\n  if (isObject(options)) {\n    leading = 'leading' in options ? !!options.leading : leading;\n    trailing = 'trailing' in options ? !!options.trailing : trailing;\n  }\n  return debounce(func, wait, {\n    'leading': leading,\n    'maxWait': wait,\n    'trailing': trailing\n  });\n}\n\nexport default throttle;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/editorwatchdog\n */\n\n/* globals console */\n\n// eslint-disable-next-line ckeditor5-rules/no-cross-package-imports\nimport type { CKEditorError } from 'ckeditor5/src/utils';\n\n// eslint-disable-next-line ckeditor5-rules/no-cross-package-imports\nimport type {\n\tEditor,\n\tEditorConfig,\n\tContext\n} from 'ckeditor5/src/core';\n\nimport areConnectedThroughProperties from './utils/areconnectedthroughproperties';\nimport Watchdog, { type WatchdogConfig } from './watchdog';\n\nimport { throttle, cloneDeepWith, isElement, type DebouncedFunc } from 'lodash-es';\n\n/**\n * A watchdog for CKEditor 5 editors.\n *\n * See the {@glink features/watchdog Watchdog feature guide} to learn the rationale behind it and\n * how to use it.\n */\nexport default class EditorWatchdog<TEditor extends Editor = Editor> extends Watchdog {\n\t/**\n\t * The current editor instance.\n\t */\n\tprivate _editor: TEditor | null = null;\n\n\t/**\n\t * Throttled save method. The `save()` method is called the specified `saveInterval` after `throttledSave()` is called,\n\t * unless a new action happens in the meantime.\n\t */\n\tprivate _throttledSave: DebouncedFunc<() => void>;\n\n\t/**\n\t * The latest saved editor data represented as a root name -> root data object.\n\t */\n\tprivate _data?: Record<string, string>;\n\n\t/**\n\t * The last document version.\n\t */\n\tprivate _lastDocumentVersion?: number;\n\n\t/**\n\t * The editor source element or data.\n\t */\n\tprivate _elementOrData?: HTMLElement | string | Record<string, string>;\n\n\t/**\n\t * The editor configuration.\n\t */\n\tprivate _config?: EditorConfig;\n\n\t/**\n\t * The creation method.\n\t *\n\t * @see #setCreator\n\t */\n\tdeclare protected _creator: EditorCreatorFunction<TEditor>;\n\n\t/**\n\t * The destruction method.\n\t *\n\t * @see #setDestructor\n\t */\n\tdeclare protected _destructor: ( editor: Editor ) => Promise<unknown>;\n\n\tprivate _excludedProps?: Set<unknown>;\n\n\t/**\n\t * @param Editor The editor class.\n\t * @param watchdogConfig The watchdog plugin configuration.\n\t */\n\tconstructor( Editor: { create( ...args: any ): Promise<TEditor> } | null, watchdogConfig: WatchdogConfig = {} ) {\n\t\tsuper( watchdogConfig );\n\n\t\t// this._editorClass = Editor;\n\n\t\tthis._throttledSave = throttle(\n\t\t\tthis._save.bind( this ),\n\t\t\ttypeof watchdogConfig.saveInterval === 'number' ? watchdogConfig.saveInterval : 5000\n\t\t);\n\n\t\t// Set default creator and destructor functions:\n\t\tif ( Editor ) {\n\t\t\tthis._creator = ( ( elementOrData, config ) => Editor.create( elementOrData, config ) );\n\t\t}\n\n\t\tthis._destructor = editor => editor.destroy();\n\t}\n\n\t/**\n\t * The current editor instance.\n\t */\n\tpublic get editor(): TEditor | null {\n\t\treturn this._editor;\n\t}\n\n\t/**\n\t * @internal\n\t */\n\tpublic get _item(): TEditor | null {\n\t\treturn this._editor;\n\t}\n\n\t/**\n\t * Sets the function that is responsible for the editor creation.\n\t * It expects a function that should return a promise.\n\t *\n\t * ```ts\n\t * watchdog.setCreator( ( element, config ) => ClassicEditor.create( element, config ) );\n\t * ```\n\t */\n\tpublic setCreator( creator: EditorCreatorFunction<TEditor> ): void {\n\t\tthis._creator = creator;\n\t}\n\n\t/**\n\t * Sets the function that is responsible for the editor destruction.\n\t * Overrides the default destruction function, which destroys only the editor instance.\n\t * It expects a function that should return a promise or `undefined`.\n\t *\n\t * ```ts\n\t * watchdog.setDestructor( editor => {\n\t * \t// Do something before the editor is destroyed.\n\t *\n\t * \treturn editor\n\t * \t\t.destroy()\n\t * \t\t.then( () => {\n\t * \t\t\t// Do something after the editor is destroyed.\n\t * \t\t} );\n\t * } );\n\t * ```\n\t */\n\tpublic setDestructor( destructor: ( editor: Editor ) => Promise<unknown> ): void {\n\t\tthis._destructor = destructor;\n\t}\n\n\t/**\n\t * Restarts the editor instance. This method is called whenever an editor error occurs. It fires the `restart` event and changes\n\t * the state to `initializing`.\n\t *\n\t * @fires restart\n\t */\n\tprotected override _restart(): Promise<unknown> {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis.state = 'initializing';\n\t\t\t\tthis._fire( 'stateChange' );\n\n\t\t\t\treturn this._destroy();\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\tconsole.error( 'An error happened during the editor destroying.', err );\n\t\t\t} )\n\t\t\t.then( () => {\n\t\t\t\tif ( typeof this._elementOrData === 'string' ) {\n\t\t\t\t\treturn this.create( this._data, this._config, this._config!.context );\n\t\t\t\t} else {\n\t\t\t\t\tconst updatedConfig = Object.assign( {}, this._config, {\n\t\t\t\t\t\tinitialData: this._data\n\t\t\t\t\t} );\n\n\t\t\t\t\treturn this.create( this._elementOrData, updatedConfig, updatedConfig.context );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t.then( () => {\n\t\t\t\tthis._fire( 'restart' );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Creates the editor instance and keeps it running, using the defined creator and destructor.\n\t *\n\t * @param elementOrData The editor source element or the editor data.\n\t * @param config The editor configuration.\n\t * @param context A context for the editor.\n\t */\n\tpublic create(\n\t\telementOrData: HTMLElement | string | Record<string, string> = this._elementOrData!,\n\t\tconfig: EditorConfig = this._config!,\n\t\tcontext?: Context\n\t): Promise<unknown> {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tsuper._startErrorHandling();\n\n\t\t\t\tthis._elementOrData = elementOrData;\n\n\t\t\t\t// Clone configuration because it might be shared within multiple watchdog instances. Otherwise,\n\t\t\t\t// when an error occurs in one of these editors, the watchdog will restart all of them.\n\t\t\t\tthis._config = this._cloneEditorConfiguration( config ) || {};\n\n\t\t\t\tthis._config!.context = context;\n\n\t\t\t\treturn this._creator( elementOrData, this._config! );\n\t\t\t} )\n\t\t\t.then( editor => {\n\t\t\t\tthis._editor = editor;\n\n\t\t\t\teditor.model.document.on( 'change:data', this._throttledSave );\n\n\t\t\t\tthis._lastDocumentVersion = editor.model.document.version;\n\t\t\t\tthis._data = this._getData();\n\n\t\t\t\tthis.state = 'ready';\n\t\t\t\tthis._fire( 'stateChange' );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Destroys the watchdog and the current editor instance. It fires the callback\n\t * registered in {@link #setDestructor `setDestructor()`} and uses it to destroy the editor instance.\n\t * It also sets the state to `destroyed`.\n\t */\n\tpublic override destroy(): Promise<unknown> {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis.state = 'destroyed';\n\t\t\t\tthis._fire( 'stateChange' );\n\n\t\t\t\tsuper.destroy();\n\n\t\t\t\treturn this._destroy();\n\t\t\t} );\n\t}\n\n\tprivate _destroy(): Promise<unknown> {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis._stopErrorHandling();\n\n\t\t\t\t// Save data if there is a remaining editor data change.\n\t\t\t\tthis._throttledSave.flush();\n\n\t\t\t\tconst editor = this._editor;\n\n\t\t\t\tthis._editor = null;\n\n\t\t\t\t// Remove the `change:data` listener before destroying the editor.\n\t\t\t\t// Incorrectly written plugins may trigger firing `change:data` events during the editor destruction phase\n\t\t\t\t// causing the watchdog to call `editor.getData()` when some parts of editor are already destroyed.\n\t\t\t\teditor!.model.document.off( 'change:data', this._throttledSave );\n\n\t\t\t\treturn this._destructor( editor! );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Saves the editor data, so it can be restored after the crash even if the data cannot be fetched at\n\t * the moment of the crash.\n\t */\n\tprivate _save(): void {\n\t\tconst version = this._editor!.model.document.version;\n\n\t\ttry {\n\t\t\tthis._data = this._getData();\n\t\t\tthis._lastDocumentVersion = version;\n\t\t} catch ( err ) {\n\t\t\tconsole.error(\n\t\t\t\terr,\n\t\t\t\t'An error happened during restoring editor data. ' +\n\t\t\t\t'Editor will be restored from the previously saved data.'\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * @internal\n\t */\n\tpublic _setExcludedProperties( props: Set<unknown> ): void {\n\t\tthis._excludedProps = props;\n\t}\n\n\t/**\n\t * Returns the editor data.\n\t */\n\tprivate _getData(): Record<string, string> {\n\t\tconst data: Record<string, string> = {};\n\n\t\tfor ( const rootName of this._editor!.model.document.getRootNames() ) {\n\t\t\tdata[ rootName ] = this._editor!.data.get( { rootName } );\n\t\t}\n\n\t\treturn data;\n\t}\n\n\t/**\n\t * Traverses the error context and the current editor to find out whether these structures are connected\n\t * to each other via properties.\n\t *\n\t * @internal\n\t */\n\tpublic _isErrorComingFromThisItem( error: CKEditorError ): boolean {\n\t\treturn areConnectedThroughProperties( this._editor, error.context, this._excludedProps );\n\t}\n\n\t/**\n\t * Clones the editor configuration.\n\t */\n\tprivate _cloneEditorConfiguration( config: EditorConfig ): EditorConfig {\n\t\treturn cloneDeepWith( config, ( value, key ) => {\n\t\t\t// Leave DOM references.\n\t\t\tif ( isElement( value ) ) {\n\t\t\t\treturn value;\n\t\t\t}\n\n\t\t\tif ( key === 'context' ) {\n\t\t\t\treturn value;\n\t\t\t}\n\t\t} );\n\t}\n}\n\n/**\n * Fired after the watchdog restarts the error in case of a crash.\n *\n * @eventName ~EditorWatchdog#restart\n */\nexport type EditorWatchdogRestartEvent = {\n\tname: 'restart';\n\targs: [];\n\treturn: undefined;\n};\n\nexport type EditorCreatorFunction<TEditor = Editor> = (\n\telementOrData: HTMLElement | string | Record<string, string>,\n\tconfig: EditorConfig\n) => Promise<TEditor>;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module watchdog/contextwatchdog\n */\n\n/* globals console */\n\n// eslint-disable-next-line ckeditor5-rules/no-cross-package-imports\nimport type {\n\tContext,\n\tEditor,\n\tEditorConfig,\n\tContextConfig\n} from 'ckeditor5/src/core';\n\n// eslint-disable-next-line ckeditor5-rules/no-cross-package-imports\nimport type {\n\tArrayOrItem,\n\tCKEditorError\n} from 'ckeditor5/src/utils';\n\nimport Watchdog, { type WatchdogConfig, type WatchdogState } from './watchdog';\nimport EditorWatchdog, { type EditorCreatorFunction } from './editorwatchdog';\nimport areConnectedThroughProperties from './utils/areconnectedthroughproperties';\nimport getSubNodes from './utils/getsubnodes';\n\nconst mainQueueId = Symbol( 'MainQueueId' );\n\n/**\n * A watchdog for the {@link module:core/context~Context} class.\n *\n * See the {@glink features/watchdog Watchdog feature guide} to learn the rationale behind it and\n * how to use it.\n */\nexport default class ContextWatchdog<TContext extends Context = Context> extends Watchdog {\n\t/**\n\t * A map of internal watchdogs for added items.\n\t */\n\tprotected _watchdogs = new Map<string, EditorWatchdog>();\n\n\t/**\n\t * The watchdog configuration.\n\t */\n\tprivate readonly _watchdogConfig: WatchdogConfig;\n\n\t/**\n\t * The current context instance.\n\t */\n\tprivate _context: TContext | null = null;\n\n\t/**\n\t * Context properties (nodes/references) that are gathered during the initial context creation\n\t * and are used to distinguish the origin of an error.\n\t */\n\tprivate _contextProps = new Set<unknown>();\n\n\t/**\n\t * An action queue, which is used to handle async functions queuing.\n\t */\n\tprivate _actionQueues = new ActionQueues();\n\n\t/**\n\t * The configuration for the {@link module:core/context~Context}.\n\t */\n\tprivate _contextConfig?: ContextConfig;\n\n\t/**\n\t * The creation method.\n\t *\n\t * @see #setCreator\n\t */\n\tdeclare protected _creator: ( config: ContextConfig ) => Promise<TContext>;\n\n\t/**\n\t * The destruction method.\n\t *\n\t * @see #setDestructor\n\t */\n\tdeclare protected _destructor: ( context: Context ) => Promise<unknown>;\n\n\t/**\n\t * The watched item.\n\t */\n\tpublic _item: unknown;\n\n\t/**\n\t * The context watchdog class constructor.\n\t *\n\t * ```ts\n\t * const watchdog = new ContextWatchdog( Context );\n\t *\n\t * await watchdog.create( contextConfiguration );\n\t *\n\t * await watchdog.add( item );\n\t * ```\n\t *\n\t * See the {@glink features/watchdog Watchdog feature guide} to learn more how to use this feature.\n\t *\n\t * @param Context The {@link module:core/context~Context} class.\n\t * @param watchdogConfig The watchdog configuration.\n\t */\n\tconstructor(\n\t\tContext: { create( ...args: any ): Promise<TContext> },\n\t\twatchdogConfig: WatchdogConfig = {}\n\t) {\n\t\tsuper( watchdogConfig );\n\n\t\tthis._watchdogConfig = watchdogConfig;\n\n\t\t// Default creator and destructor.\n\t\tthis._creator = contextConfig => Context.create( contextConfig );\n\t\tthis._destructor = context => context.destroy();\n\n\t\tthis._actionQueues.onEmpty( () => {\n\t\t\tif ( this.state === 'initializing' ) {\n\t\t\t\tthis.state = 'ready';\n\t\t\t\tthis._fire( 'stateChange' );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Sets the function that is responsible for the context creation.\n\t * It expects a function that should return a promise (or `undefined`).\n\t *\n\t * ```ts\n\t * watchdog.setCreator( config => Context.create( config ) );\n\t * ```\n\t */\n\tpublic setCreator( creator: ( config: ContextConfig ) => Promise<TContext> ): void {\n\t\tthis._creator = creator;\n\t}\n\n\t/**\n\t * Sets the function that is responsible for the context destruction.\n\t * Overrides the default destruction function, which destroys only the context instance.\n\t * It expects a function that should return a promise (or `undefined`).\n\t *\n\t * ```ts\n\t * watchdog.setDestructor( context => {\n\t * \t// Do something before the context is destroyed.\n\t *\n\t * \treturn context\n\t * \t\t.destroy()\n\t * \t\t.then( () => {\n\t * \t\t\t// Do something after the context is destroyed.\n\t * \t\t} );\n\t * } );\n\t * ```\n\t */\n\tpublic setDestructor( destructor: ( context: Context ) => Promise<unknown> ): void {\n\t\tthis._destructor = destructor;\n\t}\n\n\t/**\n\t * The context instance. Keep in mind that this property might be changed when the context watchdog restarts,\n\t * so do not keep this instance internally. Always operate on the `ContextWatchdog#context` property.\n\t */\n\tpublic get context(): Context | null {\n\t\treturn this._context;\n\t}\n\n\t/**\n\t * Initializes the context watchdog. Once it is created, the watchdog takes care about\n\t * recreating the context and the provided items, and starts the error handling mechanism.\n\t *\n\t * ```ts\n\t * await watchdog.create( {\n\t * \tplugins: []\n\t * } );\n\t * ```\n\t *\n\t * @param contextConfig The context configuration. See {@link module:core/context~Context}.\n\t */\n\tpublic create( contextConfig: ContextConfig = {} ): Promise<unknown> {\n\t\treturn this._actionQueues.enqueue( mainQueueId, () => {\n\t\t\tthis._contextConfig = contextConfig;\n\n\t\t\treturn this._create();\n\t\t} );\n\t}\n\n\t/**\n\t * Returns an item instance with the given `itemId`.\n\t *\n\t * ```ts\n\t * const editor1 = watchdog.getItem( 'editor1' );\n\t * ```\n\t *\n\t * @param itemId The item ID.\n\t * @returns The item instance or `undefined` if an item with a given ID has not been found.\n\t */\n\tpublic getItem( itemId: string ): unknown {\n\t\tconst watchdog = this._getWatchdog( itemId );\n\n\t\treturn watchdog._item;\n\t}\n\n\t/**\n\t * Gets the state of the given item. See {@link #state} for a list of available states.\n\t *\n\t * ```ts\n\t * const editor1State = watchdog.getItemState( 'editor1' );\n\t * ```\n\t *\n\t * @param itemId Item ID.\n\t * @returns The state of the item.\n\t */\n\tpublic getItemState( itemId: string ): WatchdogState {\n\t\tconst watchdog = this._getWatchdog( itemId );\n\n\t\treturn watchdog.state;\n\t}\n\n\t/**\n\t * Adds items to the watchdog. Once created, instances of these items will be available using the {@link #getItem} method.\n\t *\n\t * Items can be passed together as an array of objects:\n\t *\n\t * ```ts\n\t * await watchdog.add( [ {\n\t * \tid: 'editor1',\n\t * \ttype: 'editor',\n\t * \tsourceElementOrData: document.querySelector( '#editor' ),\n\t * \tconfig: {\n\t * \t\tplugins: [ Essentials, Paragraph, Bold, Italic ],\n\t * \t\ttoolbar: [ 'bold', 'italic', 'alignment' ]\n\t * \t},\n\t * \tcreator: ( element, config ) => ClassicEditor.create( element, config )\n\t * } ] );\n\t * ```\n\t *\n\t * Or one by one as objects:\n\t *\n\t * ```ts\n\t * await watchdog.add( {\n\t * \tid: 'editor1',\n\t * \ttype: 'editor',\n\t * \tsourceElementOrData: document.querySelector( '#editor' ),\n\t * \tconfig: {\n\t * \t\tplugins: [ Essentials, Paragraph, Bold, Italic ],\n\t * \t\ttoolbar: [ 'bold', 'italic', 'alignment' ]\n\t * \t},\n\t * \tcreator: ( element, config ) => ClassicEditor.create( element, config )\n\t * ] );\n\t * ```\n\t *\n\t * Then an instance can be retrieved using the {@link #getItem} method:\n\t *\n\t * ```ts\n\t * const editor1 = watchdog.getItem( 'editor1' );\n\t * ```\n\t *\n\t * Note that this method can be called multiple times, but for performance reasons it is better\n\t * to pass all items together.\n\t *\n\t * @param itemConfigurationOrItemConfigurations An item configuration object or an array of item configurations.\n\t */\n\tpublic add( itemConfigurationOrItemConfigurations: ArrayOrItem<WatchdogItemConfiguration> ): Promise<unknown> {\n\t\tconst itemConfigurations = toArray( itemConfigurationOrItemConfigurations );\n\n\t\treturn Promise.all( itemConfigurations.map( item => {\n\t\t\treturn this._actionQueues.enqueue( item.id, () => {\n\t\t\t\tif ( this.state === 'destroyed' ) {\n\t\t\t\t\tthrow new Error( 'Cannot add items to destroyed watchdog.' );\n\t\t\t\t}\n\n\t\t\t\tif ( !this._context ) {\n\t\t\t\t\tthrow new Error( 'Context was not created yet. You should call the `ContextWatchdog#create()` method first.' );\n\t\t\t\t}\n\n\t\t\t\tlet watchdog: EditorWatchdog;\n\n\t\t\t\tif ( this._watchdogs.has( item.id ) ) {\n\t\t\t\t\tthrow new Error( `Item with the given id is already added: '${ item.id }'.` );\n\t\t\t\t}\n\n\t\t\t\tif ( item.type === 'editor' ) {\n\t\t\t\t\twatchdog = new EditorWatchdog( null, this._watchdogConfig );\n\t\t\t\t\twatchdog.setCreator( item.creator );\n\t\t\t\t\twatchdog._setExcludedProperties( this._contextProps );\n\n\t\t\t\t\tif ( item.destructor ) {\n\t\t\t\t\t\twatchdog.setDestructor( item.destructor );\n\t\t\t\t\t}\n\n\t\t\t\t\tthis._watchdogs.set( item.id, watchdog );\n\n\t\t\t\t\t// Enqueue the internal watchdog errors within the main queue.\n\t\t\t\t\t// And propagate the internal `error` events as `itemError` event.\n\t\t\t\t\twatchdog.on( 'error', ( evt, { error, causesRestart } ) => {\n\t\t\t\t\t\tthis._fire( 'itemError', { itemId: item.id, error } );\n\n\t\t\t\t\t\t// Do not enqueue the item restart action if the item will not restart.\n\t\t\t\t\t\tif ( !causesRestart ) {\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tthis._actionQueues.enqueue( item.id, () => new Promise<void>( res => {\n\t\t\t\t\t\t\tconst rethrowRestartEventOnce = () => {\n\t\t\t\t\t\t\t\twatchdog.off( 'restart', rethrowRestartEventOnce );\n\n\t\t\t\t\t\t\t\tthis._fire( 'itemRestart', { itemId: item.id } );\n\n\t\t\t\t\t\t\t\tres();\n\t\t\t\t\t\t\t};\n\n\t\t\t\t\t\t\twatchdog.on( 'restart', rethrowRestartEventOnce );\n\t\t\t\t\t\t} ) );\n\t\t\t\t\t} );\n\n\t\t\t\t\treturn watchdog.create( item.sourceElementOrData, item.config, this._context );\n\t\t\t\t} else {\n\t\t\t\t\tthrow new Error( `Not supported item type: '${ item.type }'.` );\n\t\t\t\t}\n\t\t\t} );\n\t\t} ) );\n\t}\n\n\t/**\n\t * Removes and destroys item(s) with given ID(s).\n\t *\n\t * ```ts\n\t * await watchdog.remove( 'editor1' );\n\t * ```\n\t *\n\t * Or\n\t *\n\t * ```ts\n\t * await watchdog.remove( [ 'editor1', 'editor2' ] );\n\t * ```\n\t *\n\t * @param itemIdOrItemIds Item ID or an array of item IDs.\n\t */\n\tpublic remove( itemIdOrItemIds: ArrayOrItem<string> ): Promise<unknown> {\n\t\tconst itemIds = toArray( itemIdOrItemIds );\n\n\t\treturn Promise.all( itemIds.map( itemId => {\n\t\t\treturn this._actionQueues.enqueue( itemId, () => {\n\t\t\t\tconst watchdog = this._getWatchdog( itemId );\n\n\t\t\t\tthis._watchdogs.delete( itemId );\n\n\t\t\t\treturn watchdog.destroy();\n\t\t\t} );\n\t\t} ) );\n\t}\n\n\t/**\n\t * Destroys the context watchdog and all added items.\n\t * Once the context watchdog is destroyed, new items cannot be added.\n\t *\n\t * ```ts\n\t * await watchdog.destroy();\n\t * ```\n\t */\n\tpublic override destroy(): Promise<unknown> {\n\t\treturn this._actionQueues.enqueue( mainQueueId, () => {\n\t\t\tthis.state = 'destroyed';\n\t\t\tthis._fire( 'stateChange' );\n\n\t\t\tsuper.destroy();\n\n\t\t\treturn this._destroy();\n\t\t} );\n\t}\n\n\t/**\n\t * Restarts the context watchdog.\n\t */\n\tprotected _restart(): Promise<unknown> {\n\t\treturn this._actionQueues.enqueue( mainQueueId, () => {\n\t\t\tthis.state = 'initializing';\n\t\t\tthis._fire( 'stateChange' );\n\n\t\t\treturn this._destroy()\n\t\t\t\t.catch( err => {\n\t\t\t\t\tconsole.error( 'An error happened during destroying the context or items.', err );\n\t\t\t\t} )\n\t\t\t\t.then( () => this._create() )\n\t\t\t\t.then( () => this._fire( 'restart' ) );\n\t\t} );\n\t}\n\n\t/**\n\t * Initializes the context watchdog.\n\t */\n\tprivate _create(): Promise<unknown> {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis._startErrorHandling();\n\n\t\t\t\treturn this._creator( this._contextConfig! );\n\t\t\t} )\n\t\t\t.then( context => {\n\t\t\t\tthis._context = context;\n\t\t\t\tthis._contextProps = getSubNodes( this._context );\n\n\t\t\t\treturn Promise.all(\n\t\t\t\t\tArray.from( this._watchdogs.values() )\n\t\t\t\t\t\t.map( watchdog => {\n\t\t\t\t\t\t\twatchdog._setExcludedProperties( this._contextProps );\n\n\t\t\t\t\t\t\treturn watchdog.create( undefined, undefined, this._context! );\n\t\t\t\t\t\t} )\n\t\t\t\t);\n\t\t\t} );\n\t}\n\n\t/**\n\t * Destroys the context instance and all added items.\n\t */\n\tprivate _destroy(): Promise<unknown> {\n\t\treturn Promise.resolve()\n\t\t\t.then( () => {\n\t\t\t\tthis._stopErrorHandling();\n\n\t\t\t\tconst context = this._context!;\n\n\t\t\t\tthis._context = null;\n\t\t\t\tthis._contextProps = new Set();\n\n\t\t\t\treturn Promise.all(\n\t\t\t\t\tArray.from( this._watchdogs.values() )\n\t\t\t\t\t\t.map( watchdog => watchdog.destroy() )\n\t\t\t\t)\n\t\t\t\t\t// Context destructor destroys each editor.\n\t\t\t\t\t.then( () => this._destructor( context ) );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Returns the watchdog for a given item ID.\n\t *\n\t * @param itemId Item ID.\n\t */\n\tprotected _getWatchdog( itemId: string ): Watchdog {\n\t\tconst watchdog = this._watchdogs.get( itemId );\n\n\t\tif ( !watchdog ) {\n\t\t\tthrow new Error( `Item with the given id was not registered: ${ itemId }.` );\n\t\t}\n\n\t\treturn watchdog;\n\t}\n\n\t/**\n\t * Checks whether an error comes from the context instance and not from the item instances.\n\t *\n\t * @internal\n\t */\n\tpublic _isErrorComingFromThisItem( error: CKEditorError ): boolean {\n\t\tfor ( const watchdog of this._watchdogs.values() ) {\n\t\t\tif ( watchdog._isErrorComingFromThisItem( error ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn areConnectedThroughProperties( this._context, error.context );\n\t}\n}\n\n/**\n * Fired after the watchdog restarts the context and the added items because of a crash.\n *\n * ```ts\n * watchdog.on( 'restart', () => {\n * \tconsole.log( 'The context has been restarted.' );\n * } );\n * ```\n *\n * @eventName ~ContextWatchdog#restart\n */\nexport type ContextWatchdogRestartEvent = {\n\tname: 'restart';\n\targs: [];\n\treturn: undefined;\n};\n\n/**\n * Fired when a new error occurred in one of the added items.\n *\n * ```ts\n * watchdog.on( 'itemError', ( evt, { error, itemId } ) => {\n * \tconsole.log( `An error occurred in an item with the '${ itemId }' ID.` );\n * } );\n * ```\n *\n * @eventName ~ContextWatchdog#itemError\n */\nexport type ContextWatchdogItemErrorEvent = {\n\tname: 'itemError';\n\targs: [ ContextWatchdogItemErrorEventData ];\n\treturn: undefined;\n};\n\n/**\n * The `itemError` event data.\n */\nexport type ContextWatchdogItemErrorEventData = {\n\titemId: string;\n\terror: Error;\n};\n\n/**\n * Fired after an item has been restarted.\n *\n * ```ts\n * \twatchdog.on( 'itemRestart', ( evt, { itemId } ) => {\n *\t\tconsole.log( 'An item with with the '${ itemId }' ID has been restarted.' );\n * \t} );\n * ```\n *\n * @eventName ~ContextWatchdog#itemRestart\n */\nexport type ContextWatchdogItemRestartEvent = {\n\tname: 'itemRestart';\n\targs: [ ContextWatchdogItemRestartEventData ];\n\treturn: undefined;\n};\n\n/**\n * The `itemRestart` event data.\n */\nexport type ContextWatchdogItemRestartEventData = {\n\titemId: string;\n};\n\n/**\n * Manager of action queues that allows queuing async functions.\n */\nclass ActionQueues {\n\tpublic _onEmptyCallbacks: Array<() => void> = [];\n\tpublic _queues = new Map<symbol | string | number, Promise<unknown>>();\n\tpublic _activeActions = 0;\n\n\t/**\n\t * Used to register callbacks that will be run when the queue becomes empty.\n\t *\n\t * @param onEmptyCallback A callback that will be run whenever the queue becomes empty.\n\t */\n\tpublic onEmpty( onEmptyCallback: () => void ): void {\n\t\tthis._onEmptyCallbacks.push( onEmptyCallback );\n\t}\n\n\t/**\n\t * It adds asynchronous actions (functions) to the proper queue and runs them one by one.\n\t *\n\t * @param queueId The action queue ID.\n\t * @param action A function that should be enqueued.\n\t */\n\tpublic enqueue( queueId: symbol | string | number, action: () => unknown ): Promise<unknown> {\n\t\tconst isMainAction = queueId === mainQueueId;\n\n\t\tthis._activeActions++;\n\n\t\tif ( !this._queues.get( queueId ) ) {\n\t\t\tthis._queues.set( queueId, Promise.resolve() );\n\t\t}\n\n\t\t// List all sources of actions that the current action needs to await for.\n\t\t// For the main action wait for all other actions.\n\t\t// For the item action wait only for the item queue and the main queue.\n\t\tconst awaitedActions = isMainAction ?\n\t\t\tPromise.all( this._queues.values() ) :\n\t\t\tPromise.all( [ this._queues.get( mainQueueId ), this._queues.get( queueId ) ] );\n\n\t\tconst queueWithAction = awaitedActions.then( action );\n\n\t\t// Catch all errors in the main queue to stack promises even if an error occurred in the past.\n\t\tconst nonErrorQueue = queueWithAction.catch( () => {} );\n\n\t\tthis._queues.set( queueId, nonErrorQueue );\n\n\t\treturn queueWithAction.finally( () => {\n\t\t\tthis._activeActions--;\n\n\t\t\tif ( this._queues.get( queueId ) === nonErrorQueue && this._activeActions === 0 ) {\n\t\t\t\tthis._onEmptyCallbacks.forEach( cb => cb() );\n\t\t\t}\n\t\t} );\n\t}\n}\n\n/**\n * Transforms any value to an array. If the provided value is already an array, it is returned unchanged.\n *\n * @param elementOrArray The value to transform to an array.\n * @returns An array created from data.\n */\nfunction toArray<T>( elementOrArray: ArrayOrItem<T> ): Array<T> {\n\treturn Array.isArray( elementOrArray ) ? elementOrArray : [ elementOrArray ];\n}\n\n/**\n * The watchdog item configuration interface.\n */\nexport interface WatchdogItemConfiguration {\n\n\t/**\n\t * id A unique item identificator.\n\t */\n\tid: string;\n\n\t/**\n\t * The type of the item to create. At the moment, only `'editor'` is supported.\n\t */\n\ttype: 'editor';\n\n\t/**\n\t * A function that initializes the item (the editor). The function takes editor initialization arguments\n\t * and should return a promise. For example: `( el, config ) => ClassicEditor.create( el, config )`.\n\t */\n\tcreator: EditorCreatorFunction;\n\n\t/**\n\t * A function that destroys the item instance (the editor). The function\n\t * takes an item and should return a promise. For example: `editor => editor.destroy()`\n\t */\n\tdestructor?: ( editor: Editor ) => Promise<unknown>;\n\n\t/**\n\t * The source element or data that will be passed\n\t * as the first argument to the `Editor.create()` method.\n\t */\n\tsourceElementOrData: string | HTMLElement;\n\n\t/**\n\t * An editor configuration.\n \t */\n\tconfig: EditorConfig;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module editor-balloon/ballooneditorui\n */\n\nimport {\n\ttype Editor,\n\ttype ElementApi\n} from 'ckeditor5/src/core';\n\nimport {\n\tEditorUI,\n\ttype EditorUIReadyEvent\n} from 'ckeditor5/src/ui';\n\nimport { enablePlaceholder } from 'ckeditor5/src/engine';\n\nimport type BalloonEditorUIView from './ballooneditoruiview';\n\n/**\n * The balloon editor UI class.\n */\nexport default class BalloonEditorUI extends EditorUI {\n\t/**\n\t * The main (top–most) view of the editor UI.\n\t */\n\tpublic readonly view: BalloonEditorUIView;\n\n\t/**\n\t * Creates an instance of the balloon editor UI class.\n\t *\n\t * @param editor The editor instance.\n\t * @param view The view of the UI.\n\t */\n\tconstructor( editor: Editor, view: BalloonEditorUIView ) {\n\t\tsuper( editor );\n\n\t\tthis.view = view;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override get element(): HTMLElement | null {\n\t\treturn this.view.editable.element;\n\t}\n\n\t/**\n\t * Initializes the UI.\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = this.view;\n\t\tconst editingView = editor.editing.view;\n\t\tconst editable = view.editable;\n\t\tconst editingRoot = editingView.document.getRoot()!;\n\n\t\t// The editable UI and editing root should share the same name. Then name is used\n\t\t// to recognize the particular editable, for instance in ARIA attributes.\n\t\teditable.name = editingRoot.rootName;\n\n\t\tview.render();\n\n\t\t// The editable UI element in DOM is available for sure only after the editor UI view has been rendered.\n\t\t// But it can be available earlier if a DOM element has been passed to BalloonEditor.create().\n\t\tconst editableElement = editable.element!;\n\n\t\t// Register the editable UI view in the editor. A single editor instance can aggregate multiple\n\t\t// editable areas (roots) but the balloon editor has only one.\n\t\tthis.setEditableElement( editable.name, editableElement );\n\n\t\t// Let the editable UI element respond to the changes in the global editor focus\n\t\t// tracker. It has been added to the same tracker a few lines above but, in reality, there are\n\t\t// many focusable areas in the editor, like balloons, toolbars or dropdowns and as long\n\t\t// as they have focus, the editable should act like it is focused too (although technically\n\t\t// it isn't), e.g. by setting the proper CSS class, visually announcing focus to the user.\n\t\t// Doing otherwise will result in editable focus styles disappearing, once e.g. the\n\t\t// toolbar gets focused.\n\t\teditable.bind( 'isFocused' ).to( this.focusTracker );\n\n\t\t// Bind the editable UI element to the editing view, making it an end– and entry–point\n\t\t// of the editor's engine. This is where the engine meets the UI.\n\t\teditingView.attachDomRoot( editableElement );\n\n\t\tthis._initPlaceholder();\n\t\tthis.fire<EditorUIReadyEvent>( 'ready' );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tconst view = this.view;\n\t\tconst editingView = this.editor.editing.view;\n\n\t\teditingView.detachDomRoot( view.editable.name! );\n\t\tview.destroy();\n\t}\n\n\t/**\n\t * Enable the placeholder text on the editing root, if any was configured.\n\t */\n\tprivate _initPlaceholder(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst editingRoot = editingView.document.getRoot()!;\n\t\tconst sourceElement = ( editor as Editor & ElementApi ).sourceElement;\n\n\t\tconst placeholder = editor.config.get( 'placeholder' );\n\n\t\tif ( placeholder ) {\n\t\t\tconst placeholderText = typeof placeholder === 'string' ? placeholder : placeholder[ editingRoot.rootName ];\n\n\t\t\tif ( placeholderText ) {\n\t\t\t\tenablePlaceholder( {\n\t\t\t\t\tview: editingView,\n\t\t\t\t\telement: editingRoot,\n\t\t\t\t\ttext: placeholderText,\n\t\t\t\t\tisDirectHost: false,\n\t\t\t\t\tkeepOnFocus: true\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module editor-balloon/ballooneditoruiview\n */\n\nimport { EditorUIView, InlineEditableUIView } from 'ckeditor5/src/ui';\nimport type { Locale } from 'ckeditor5/src/utils';\nimport type { View } from 'ckeditor5/src/engine';\n\n/**\n * Contextual editor UI view. Uses the {@link module:ui/editableui/inline/inlineeditableuiview~InlineEditableUIView}.\n */\nexport default class BalloonEditorUIView extends EditorUIView {\n\t/**\n\t * Editable UI view.\n\t */\n\tpublic readonly editable: InlineEditableUIView;\n\n\t/**\n\t * Creates an instance of the balloon editor UI view.\n\t *\n\t * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param editingView The editing view instance this view is related to.\n\t * @param editableElement The editable element. If not specified, it will be automatically created by\n\t * {@link module:ui/editableui/editableuiview~EditableUIView}. Otherwise, the given element will be used.\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\teditingView: View,\n\t\teditableElement?: HTMLElement\n\t) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\tthis.editable = new InlineEditableUIView( locale, editingView, editableElement, {\n\t\t\tlabel: editableView => {\n\t\t\t\treturn t( 'Rich Text Editor. Editing area: %0', editableView.name! );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.registerChild( this.editable );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module editor-balloon/ballooneditor\n */\n\nimport {\n\tEditor,\n\tContext,\n\tDataApiMixin,\n\tElementApiMixin,\n\tattachToForm,\n\tsecureSourceElement,\n\ttype EditorConfig,\n\ttype EditorReadyEvent\n} from 'ckeditor5/src/core';\n\nimport { BalloonToolbar } from 'ckeditor5/src/ui';\nimport { CKEditorError, getDataFromElement } from 'ckeditor5/src/utils';\n\nimport { ContextWatchdog, EditorWatchdog } from 'ckeditor5/src/watchdog';\n\nimport BalloonEditorUI from './ballooneditorui';\nimport BalloonEditorUIView from './ballooneditoruiview';\n\nimport { isElement as _isElement } from 'lodash-es';\n\n/**\n * The {@glink installation/getting-started/predefined-builds#balloon-editor balloon editor}\n * implementation (Medium-like editor).\n * It uses an inline editable and a toolbar based on the {@link module:ui/toolbar/balloon/balloontoolbar~BalloonToolbar}.\n * See the {@glink examples/builds/balloon-editor demo}.\n *\n * In order to create a balloon editor instance, use the static\n * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`} method.\n *\n * # Balloon editor and balloon build\n *\n * The balloon editor can be used directly from source (if you installed the\n * [`@ckeditor/ckeditor5-editor-balloon`](https://www.npmjs.com/package/@ckeditor/ckeditor5-editor-balloon) package)\n * but it is also available in the {@glink installation/getting-started/predefined-builds#balloon-editor balloon build}.\n *\n * {@glink installation/getting-started/predefined-builds Builds}\n * are ready-to-use editors with plugins bundled in. When using the editor from\n * source you need to take care of loading all plugins by yourself\n * (through the {@link module:core/editor/editorconfig~EditorConfig#plugins `config.plugins`} option).\n * Using the editor from source gives much better flexibility and allows easier customization.\n *\n * Read more about initializing the editor from source or as a build in\n * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`}.\n */\nexport default class BalloonEditor extends DataApiMixin( ElementApiMixin( Editor ) ) {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic readonly ui: BalloonEditorUI;\n\n\t/**\n\t * Creates an instance of the balloon editor.\n\t *\n\t * **Note:** do not use the constructor to create editor instances. Use the static\n\t * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`} method instead.\n\t *\n\t * @param sourceElementOrData The DOM element that will be the source for the created editor\n\t * (on which the editor will be initialized) or initial data for the editor. For more information see\n\t * {@link module:editor-balloon/ballooneditor~BalloonEditor.create `BalloonEditor.create()`}.\n\t * @param config The editor configuration.\n\t */\n\tprotected constructor( sourceElementOrData: HTMLElement | string, config: EditorConfig = {} ) {\n\t\t// If both `config.initialData` is set and initial data is passed as the constructor parameter, then throw.\n\t\tif ( !isElement( sourceElementOrData ) && config.initialData !== undefined ) {\n\t\t\t// Documented in core/editor/editorconfig.jsdoc.\n\t\t\t// eslint-disable-next-line ckeditor5-rules/ckeditor-error-message\n\t\t\tthrow new CKEditorError( 'editor-create-initial-data', null );\n\t\t}\n\n\t\tsuper( config );\n\n\t\tif ( this.config.get( 'initialData' ) === undefined ) {\n\t\t\tthis.config.set( 'initialData', getInitialData( sourceElementOrData ) );\n\t\t}\n\n\t\tif ( isElement( sourceElementOrData ) ) {\n\t\t\tthis.sourceElement = sourceElementOrData;\n\t\t\tsecureSourceElement( this, sourceElementOrData );\n\t\t}\n\n\t\tconst plugins = this.config.get( 'plugins' )!;\n\t\tplugins.push( BalloonToolbar );\n\n\t\tthis.config.set( 'plugins', plugins );\n\n\t\tthis.config.define( 'balloonToolbar', this.config.get( 'toolbar' ) );\n\n\t\tthis.model.document.createRoot();\n\n\t\tconst view = new BalloonEditorUIView( this.locale, this.editing.view, this.sourceElement );\n\t\tthis.ui = new BalloonEditorUI( this, view );\n\n\t\tattachToForm( this );\n\t}\n\n\t/**\n\t * Destroys the editor instance, releasing all resources used by it.\n\t *\n\t * Updates the original editor element with the data if the\n\t * {@link module:core/editor/editorconfig~EditorConfig#updateSourceElementOnDestroy `updateSourceElementOnDestroy`}\n\t * configuration option is set to `true`.\n\t */\n\tpublic override destroy(): Promise<unknown> {\n\t\t// Cache the data, then destroy.\n\t\t// It's safe to assume that the model->view conversion will not work after super.destroy().\n\t\tconst data = this.getData();\n\n\t\tthis.ui.destroy();\n\n\t\treturn super.destroy()\n\t\t\t.then( () => {\n\t\t\t\tif ( this.sourceElement ) {\n\t\t\t\t\tthis.updateSourceElement( data );\n\t\t\t\t}\n\t\t\t} );\n\t}\n\n\t/**\n\t * Creates a new balloon editor instance.\n\t *\n\t * There are three general ways how the editor can be initialized.\n\t *\n\t * # Using an existing DOM element (and loading data from it)\n\t *\n\t * You can initialize the editor using an existing DOM element:\n\t *\n\t * ```ts\n\t * BalloonEditor\n\t * \t.create( document.querySelector( '#editor' ) )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t * \t} )\n\t * \t.catch( err => {\n\t * \t\tconsole.error( err.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * The element's content will be used as the editor data and the element will become the editable element.\n\t *\n\t * # Creating a detached editor\n\t *\n\t * Alternatively, you can initialize the editor by passing the initial data directly as a string.\n\t * In this case, the editor will render an element that must be inserted into the DOM for the editor to work properly:\n\t *\n\t * ```ts\n\t * BalloonEditor\n\t * \t.create( '<p>Hello world!</p>' )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t *\n\t * \t\t// Initial data was provided so the editor UI element needs to be added manually to the DOM.\n\t * \t\tdocument.body.appendChild( editor.ui.element );\n\t * \t} )\n\t * \t.catch( err => {\n\t * \t\tconsole.error( err.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * This lets you dynamically append the editor to your web page whenever it is convenient for you. You may use this method if your\n\t * web page content is generated on the client side and the DOM structure is not ready at the moment when you initialize the editor.\n\t *\n\t * # Using an existing DOM element (and data provided in `config.initialData`)\n\t *\n\t * You can also mix these two ways by providing a DOM element to be used and passing the initial data through the configuration:\n\t *\n\t * ```ts\n\t * BalloonEditor\n\t * \t.create( document.querySelector( '#editor' ), {\n\t * \t\tinitialData: '<h2>Initial data</h2><p>Foo bar.</p>'\n\t * \t} )\n\t * \t.then( editor => {\n\t * \t\tconsole.log( 'Editor was initialized', editor );\n\t * \t} )\n\t * \t.catch( err => {\n\t * \t\tconsole.error( err.stack );\n\t * \t} );\n\t * ```\n\t *\n\t * This method can be used to initialize the editor on an existing element with the specified content in case if your integration\n\t * makes it difficult to set the content of the source element.\n\t *\n\t * Note that an error will be thrown if you pass the initial data both as the first parameter and also in the configuration.\n\t *\n\t * # Configuring the editor\n\t *\n\t * See the {@link module:core/editor/editorconfig~EditorConfig editor configuration documentation} to learn more about\n\t * customizing plugins, toolbar and more.\n\t *\n\t * # Using the editor from source\n\t *\n\t * The code samples listed in the previous sections of this documentation assume that you are using an\n\t * {@glink installation/getting-started/predefined-builds editor build} (for example – `@ckeditor/ckeditor5-build-balloon`).\n\t *\n\t * If you want to use the balloon editor from source (`@ckeditor/ckeditor5-editor-balloon/src/ballooneditor`),\n\t * you need to define the list of\n\t * {@link module:core/editor/editorconfig~EditorConfig#plugins plugins to be initialized} and\n\t * {@link module:core/editor/editorconfig~EditorConfig#toolbar toolbar items}. Read more about using the editor from\n\t * source in the {@glink installation/advanced/alternative-setups/integrating-from-source-webpack dedicated guide}.\n\t *\n\t * @param sourceElementOrData The DOM element that will be the source for the created editor\n\t * or the editor's initial data.\n\t *\n\t * If a DOM element is passed, its content will be automatically loaded to the editor upon initialization.\n\t * The editor data will be set back to the original element once the editor is destroyed only if the\n\t * {@link module:core/editor/editorconfig~EditorConfig#updateSourceElementOnDestroy updateSourceElementOnDestroy}\n\t * option is set to `true`.\n\t *\n\t * If the initial data is passed, a detached editor will be created. In this case you need to insert it into the DOM manually.\n\t * It is available under the {@link module:editor-balloon/ballooneditorui~BalloonEditorUI#element `editor.ui.element`} property.\n\t *\n\t * @param config The editor configuration.\n\t * @returns A promise resolved once the editor is ready. The promise resolves with the created editor instance.\n\t */\n\tpublic static override create( sourceElementOrData: HTMLElement | string, config: EditorConfig = {} ): Promise<BalloonEditor> {\n\t\treturn new Promise( resolve => {\n\t\t\tif ( isElement( sourceElementOrData ) && sourceElementOrData.tagName === 'TEXTAREA' ) {\n\t\t\t\t// Documented in core/editor/editor.js\n\t\t\t\t// eslint-disable-next-line ckeditor5-rules/ckeditor-error-message\n\t\t\t\tthrow new CKEditorError( 'editor-wrong-element', null );\n\t\t\t}\n\n\t\t\tconst editor = new this( sourceElementOrData, config );\n\n\t\t\tresolve(\n\t\t\t\teditor.initPlugins()\n\t\t\t\t\t.then( () => editor.ui.init() )\n\t\t\t\t\t.then( () => editor.data.init( editor.config.get( 'initialData' )! ) )\n\t\t\t\t\t.then( () => editor.fire<EditorReadyEvent>( 'ready' ) )\n\t\t\t\t\t.then( () => editor )\n\t\t\t);\n\t\t} );\n\t}\n\n\t/**\n\t * The {@link module:core/context~Context} class.\n\t *\n\t * Exposed as static editor field for easier access in editor builds.\n\t */\n\tpublic static Context = Context;\n\n\t/**\n\t * The {@link module:watchdog/editorwatchdog~EditorWatchdog} class.\n\t *\n\t * Exposed as static editor field for easier access in editor builds.\n\t */\n\tpublic static EditorWatchdog = EditorWatchdog;\n\n\t/**\n\t * The {@link module:watchdog/contextwatchdog~ContextWatchdog} class.\n\t *\n\t * Exposed as static editor field for easier access in editor builds.\n\t */\n\tpublic static ContextWatchdog = ContextWatchdog;\n}\n\nfunction getInitialData( sourceElementOrData: HTMLElement | string ): string {\n\treturn isElement( sourceElementOrData ) ? getDataFromElement( sourceElementOrData ) : sourceElementOrData;\n}\n\nfunction isElement( value: any ): value is Element {\n\treturn _isElement( value );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals HTMLTextAreaElement */\n\n/**\n * @module utils/dom/getdatafromelement\n */\n\n/**\n * Gets data from a given source element.\n *\n * @param el The element from which the data will be retrieved.\n * @returns The data string.\n */\nexport default function getDataFromElement( el: HTMLElement ): string {\n\tif ( el instanceof HTMLTextAreaElement ) {\n\t\treturn el.value;\n\t}\n\n\treturn el.innerHTML;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editor/utils/securesourceelement\n */\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Editor, EditorDestroyEvent } from '../editor';\nimport type { ElementApi } from './elementapimixin';\n\n/**\n * Marks the source element on which the editor was initialized. This prevents other editor instances from using this element.\n *\n * Running multiple editor instances on the same source element causes various issues and it is\n * crucial this helper is called as soon as the source element is known to prevent collisions.\n *\n * @param editor Editor instance.\n * @param sourceElement Element to bind with the editor instance.\n */\nexport default function secureSourceElement( editor: Editor, sourceElement: HTMLElement & { ckeditorInstance?: Editor } ): void {\n\tif ( sourceElement.ckeditorInstance ) {\n\t\t/**\n\t\t * A DOM element used to create the editor (e.g.\n\t\t * {@link module:editor-inline/inlineeditor~InlineEditor.create `InlineEditor.create()`})\n\t\t * has already been used to create another editor instance. Make sure each editor is\n\t\t * created with an unique DOM element.\n\t\t *\n\t\t * @error editor-source-element-already-used\n\t\t * @param element DOM element that caused the collision.\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'editor-source-element-already-used',\n\t\t\teditor\n\t\t);\n\t}\n\n\tsourceElement.ckeditorInstance = editor;\n\n\teditor.once<EditorDestroyEvent>( 'destroy', () => {\n\t\tdelete sourceElement.ckeditorInstance;\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module core/editor/utils/attachtoform\n */\n\nimport { isFunction } from 'lodash-es';\n\nimport { CKEditorError } from '@ckeditor/ckeditor5-utils';\n\nimport type { default as Editor, EditorDestroyEvent } from '../editor';\nimport type { ElementApi } from './elementapimixin';\n\n/**\n * Checks if the editor is initialized on a `<textarea>` element that belongs to a form. If yes, it updates the editor's element\n * content before submitting the form.\n *\n * This helper requires the {@link module:core/editor/utils/elementapimixin~ElementApi ElementApi interface}.\n *\n * @param editor Editor instance.\n */\nexport default function attachToForm( editor: Editor & ElementApi ): void {\n\tif ( !isFunction( editor.updateSourceElement ) ) {\n\t\t/**\n\t\t * The editor passed to `attachToForm()` must implement the\n\t\t * {@link module:core/editor/utils/elementapimixin~ElementApi} interface.\n\t\t *\n\t\t * @error attachtoform-missing-elementapi-interface\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'attachtoform-missing-elementapi-interface',\n\t\t\teditor\n\t\t);\n\t}\n\n\tconst sourceElement = editor.sourceElement;\n\n\t// Only when replacing a textarea which is inside of a form element.\n\tif ( isTextArea( sourceElement ) && sourceElement.form ) {\n\t\tlet originalSubmit: () => void;\n\t\tconst form = sourceElement.form;\n\t\tconst onSubmit = () => editor.updateSourceElement();\n\n\t\t// Replace the original form#submit() to call a custom submit function first.\n\t\t// Check if #submit is a function because the form might have an input named \"submit\".\n\t\tif ( isFunction( form.submit ) ) {\n\t\t\toriginalSubmit = form.submit;\n\n\t\t\tform.submit = () => {\n\t\t\t\tonSubmit();\n\t\t\t\toriginalSubmit.apply( form );\n\t\t\t};\n\t\t}\n\n\t\t// Update the replaced textarea with data before each form#submit event.\n\t\tform.addEventListener( 'submit', onSubmit );\n\n\t\t// Remove the submit listener and revert the original submit method on\n\t\t// editor#destroy.\n\t\teditor.on<EditorDestroyEvent>( 'destroy', () => {\n\t\t\tform.removeEventListener( 'submit', onSubmit );\n\n\t\t\tif ( originalSubmit ) {\n\t\t\t\tform.submit = originalSubmit;\n\t\t\t}\n\t\t} );\n\t}\n}\n\nfunction isTextArea( sourceElement: HTMLElement | undefined ): sourceElement is HTMLTextAreaElement {\n\treturn !!sourceElement && sourceElement.tagName.toLowerCase() === 'textarea';\n}\n","import api from \"!../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../node_modules/css-loader/dist/cjs.js!../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./responsiveform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./findandreplaceform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/ui/findandreplaceformview\n */\n\nimport {\n\tView,\n\tButtonView,\n\tFormHeaderView,\n\tLabeledFieldView,\n\n\tModel,\n\tFocusCycler,\n\tcreateLabeledInputText,\n\tsubmitHandler,\n\tViewCollection,\n\n\tcreateDropdown,\n\taddListToDropdown,\n\ttype DropdownView,\n\ttype Template,\n\ttype InputView\n} from 'ckeditor5/src/ui';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\tCollection,\n\tRect,\n\tisVisible,\n\ttype Locale\n} from 'ckeditor5/src/utils';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\nimport '../../theme/findandreplaceform.css';\n\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport previousArrow from '@ckeditor/ckeditor5-ui/theme/icons/previous-arrow.svg';\nimport { icons } from 'ckeditor5/src/core';\n\n/**\n * The find and replace form view class.\n *\n * See {@link module:find-and-replace/ui/findandreplaceformview~FindAndReplaceFormView}.\n */\nexport default class FindAndReplaceFormView extends View {\n\t/**\n\t * Stores the number of matched search results.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public matchCount: number;\n\n\t/**\n\t * The offset of currently highlighted search result in {@link #matchCount matched results}.\n\t *\n\t * @observable\n\t */\n\tdeclare public readonly highlightOffset: number;\n\n\t/**\n\t * `true` when the search params (find text, options) has been changed by the user since\n\t * the last time find was executed. `false` otherwise.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isDirty: boolean;\n\n\t/**\n\t * A live object with the aggregated `isEnabled` states of editor commands related to find and\n\t * replace. For instance, it may look as follows:\n\t *\n\t * ```json\n\t * {\n\t * \tfindNext: true,\n\t * \tfindPrevious: true,\n\t * \treplace: false,\n\t * \treplaceAll: false\n\t * }\n\t * ```\n\t *\n\t * @internal\n\t * @observable\n\t */\n\tdeclare public readonly _areCommandsEnabled: Record<string, boolean>;\n\n\t/**\n\t * The content of the counter label displaying the index of the current highlighted match\n\t * on top of the find input, for instance \"3 of 50\".\n\t *\n\t * @internal\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _resultsCounterText: string;\n\n\t/**\n\t * The flag reflecting the state of the \"Match case\" switch button in the search options\n\t * dropdown.\n\t *\n\t * @internal\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _matchCase: boolean;\n\n\t/**\n\t * The flag reflecting the state of the \"Whole words only\" switch button in the search options\n\t * dropdown.\n\t *\n\t * @internal\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _wholeWordsOnly: boolean;\n\n\t/**\n\t * This flag is set `true` when some matches were found and the user didn't change the search\n\t * params (text to find, options) yet. This is only possible immediately after hitting the \"Find\" button.\n\t * `false` when there were no matches (see {@link #matchCount}) or the user changed the params (see {@link #isDirty}).\n\t *\n\t * It is used to control the enabled state of the replace UI (input and buttons); replacing text is only possible\n\t * if this flag is `true`.\n\t *\n\t * @internal\n\t * @observable\n\t */\n\tdeclare public readonly _searchResultsFound: boolean;\n\n\t/**\n\t * The find in text input view that stores the searched string.\n\t *\n\t * @internal\n\t */\n\tpublic readonly _findInputView: LabeledFieldView<InputView>;\n\n\t/**\n\t * The replace input view.\n\t */\n\tprivate readonly _replaceInputView: LabeledFieldView;\n\n\t/**\n\t * The find button view that initializes the search process.\n\t */\n\tprivate readonly _findButtonView: ButtonView;\n\n\t/**\n\t * The find previous button view.\n\t */\n\tprivate readonly _findPrevButtonView: ButtonView;\n\n\t/**\n\t * The find next button view.\n\t */\n\tprivate readonly _findNextButtonView: ButtonView;\n\n\t/**\n\t * The find options dropdown.\n\t */\n\tprivate readonly _optionsDropdown: DropdownView;\n\n\t/**\n\t * The replace button view.\n\t */\n\tprivate readonly _replaceButtonView: ButtonView;\n\n\t/**\n\t * The replace all button view.\n\t */\n\tprivate readonly _replaceAllButtonView: ButtonView;\n\n\t/**\n\t * The fieldset aggregating the find UI.\n\t */\n\tprivate readonly _findFieldsetView: View;\n\n\t/**\n\t * The fieldset aggregating the replace UI.\n\t */\n\tprivate readonly _replaceFieldsetView: View;\n\n\t/**\n\t * Tracks information about the DOM focus in the form.\n\t */\n\tprivate readonly _focusTracker: FocusTracker;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tprivate readonly _keystrokes: KeystrokeHandler;\n\n\t/**\n\t * A collection of views that can be focused in the form.\n\t */\n\tprivate readonly _focusables: ViewCollection;\n\n\t/**\n\t * Helps cycling over {@link #_focusables} in the form.\n\t */\n\tprivate readonly _focusCycler: FocusCycler;\n\n\tpublic declare locale: Locale;\n\n\t/**\n\t * Creates a view of find and replace form.\n\t *\n\t * @param locale The localization services instance.\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\tthis.set( 'matchCount', 0 );\n\n\t\tthis.set( 'highlightOffset', 0 );\n\n\t\tthis.set( 'isDirty', false );\n\n\t\tthis.set( '_areCommandsEnabled', {} );\n\n\t\tthis.set( '_resultsCounterText', '' );\n\n\t\tthis.set( '_matchCase', false );\n\n\t\tthis.set( '_wholeWordsOnly', false );\n\n\t\tthis.bind( '_searchResultsFound' ).to(\n\t\t\tthis, 'matchCount',\n\t\t\tthis, 'isDirty',\n\t\t\t( matchCount, isDirty ) => {\n\t\t\t\treturn matchCount > 0 && !isDirty;\n\t\t\t}\n\t\t);\n\n\t\tthis._findInputView = this._createInputField( t( 'Find in text…' ) );\n\n\t\tthis._replaceInputView = this._createInputField( t( 'Replace with…' ) );\n\n\t\tthis._findButtonView = this._createButton( {\n\t\t\tlabel: t( 'Find' ),\n\t\t\tclass: 'ck-button-find ck-button-action',\n\t\t\twithText: true\n\t\t} );\n\n\t\tthis._findPrevButtonView = this._createButton( {\n\t\t\tlabel: t( 'Previous result' ),\n\t\t\tclass: 'ck-button-prev',\n\t\t\ticon: previousArrow,\n\t\t\tkeystroke: 'Shift+F3',\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tthis._findNextButtonView = this._createButton( {\n\t\t\tlabel: t( 'Next result' ),\n\t\t\tclass: 'ck-button-next',\n\t\t\ticon: previousArrow,\n\t\t\tkeystroke: 'F3',\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tthis._optionsDropdown = this._createOptionsDropdown();\n\n\t\tthis._replaceButtonView = this._createButton( {\n\t\t\tlabel: t( 'Replace' ),\n\t\t\tclass: 'ck-button-replace',\n\t\t\twithText: true\n\t\t} );\n\n\t\tthis._replaceAllButtonView = this._createButton( {\n\t\t\tlabel: t( 'Replace all' ),\n\t\t\tclass: 'ck-button-replaceall',\n\t\t\twithText: true\n\t\t} );\n\n\t\tthis._findFieldsetView = this._createFindFieldset();\n\n\t\tthis._replaceFieldsetView = this._createReplaceFieldset();\n\n\t\tthis._focusTracker = new FocusTracker();\n\n\t\tthis._keystrokes = new KeystrokeHandler();\n\n\t\tthis._focusables = new ViewCollection();\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this._focusTracker,\n\t\t\tkeystrokeHandler: this._keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-find-and-replace-form'\n\t\t\t\t],\n\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tnew FormHeaderView( locale, {\n\t\t\t\t\tlabel: t( 'Find and replace' )\n\t\t\t\t} ),\n\t\t\t\tthis._findFieldsetView,\n\t\t\t\tthis._replaceFieldsetView\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tsubmitHandler( { view: this } );\n\n\t\tthis._initFocusCycling();\n\t\tthis._initKeystrokeHandling();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._focusTracker.destroy();\n\t\tthis._keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist {@link #_focusables} in the form.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Resets the form before re-appearing.\n\t *\n\t * It clears error messages, hides the match counter and disables the replace feature\n\t * until the next hit of the \"Find\" button.\n\t *\n\t * **Note**: It does not reset inputs and options, though. This way the form works better in editors with\n\t * disappearing toolbar (e.g. BalloonEditor): hiding the toolbar by accident (together with the find and replace UI)\n\t * does not require filling the entire form again.\n\t */\n\tpublic reset(): void {\n\t\tthis._findInputView.errorText = null;\n\t\tthis.isDirty = true;\n\t}\n\n\t/**\n\t * Returns the value of the find input.\n\t */\n\tprivate get _textToFind(): string {\n\t\treturn ( this._findInputView.fieldView.element as HTMLInputElement ).value;\n\t}\n\n\t/**\n\t * Returns the value of the replace input.\n\t */\n\tprivate get _textToReplace() {\n\t\treturn ( this._replaceInputView.fieldView.element as HTMLInputElement ).value;\n\t}\n\n\t/**\n\t * Configures and returns the `<fieldset>` aggregating all find controls.\n\t */\n\tprivate _createFindFieldset(): View {\n\t\tconst locale = this.locale;\n\t\tconst fieldsetView = new View( locale );\n\n\t\t// Typing in the find field invalidates all previous results (the form is \"dirty\").\n\t\tthis._findInputView.fieldView.on( 'input', () => {\n\t\t\tthis.isDirty = true;\n\t\t} );\n\n\t\tthis._findButtonView.on( 'execute', this._onFindButtonExecute.bind( this ) );\n\n\t\t// Pressing prev/next buttons fires related event on the form.\n\t\tthis._findPrevButtonView.delegate( 'execute' ).to( this, 'findPrevious' );\n\t\tthis._findNextButtonView.delegate( 'execute' ).to( this, 'findNext' );\n\n\t\t// Prev/next buttons will be disabled when related editor command gets disabled.\n\t\tthis._findPrevButtonView.bind( 'isEnabled' ).to( this, '_areCommandsEnabled', ( { findPrevious } ) => findPrevious );\n\t\tthis._findNextButtonView.bind( 'isEnabled' ).to( this, '_areCommandsEnabled', ( { findNext } ) => findNext );\n\n\t\tthis._injectFindResultsCounter();\n\n\t\tfieldsetView.setTemplate( {\n\t\t\ttag: 'fieldset',\n\t\t\tattributes: {\n\t\t\t\tclass: [ 'ck', 'ck-find-and-replace-form__find' ]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis._findInputView,\n\t\t\t\tthis._findButtonView,\n\t\t\t\tthis._findPrevButtonView,\n\t\t\t\tthis._findNextButtonView\n\t\t\t]\n\t\t} );\n\n\t\treturn fieldsetView;\n\t}\n\n\t/**\n\t * The action performed when the {@link #_findButtonView} is pressed.\n\t */\n\tprivate _onFindButtonExecute() {\n\t\t// When hitting \"Find\" in an empty input, an error should be displayed.\n\t\t// Also, if the form was \"dirty\", it should remain so.\n\t\tif ( !this._textToFind ) {\n\t\t\tconst t = this.t!;\n\n\t\t\tthis._findInputView.errorText = t( 'Text to find must not be empty.' );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Hitting \"Find\" automatically clears the dirty state.\n\t\tthis.isDirty = false;\n\n\t\tthis.fire<FindNextEvent>( 'findNext', {\n\t\t\tsearchText: this._textToFind,\n\t\t\tmatchCase: this._matchCase,\n\t\t\twholeWords: this._wholeWordsOnly\n\t\t} );\n\t}\n\n\t/**\n\t * Configures an injects the find results counter displaying a \"N of M\" label of the {@link #_findInputView}.\n\t */\n\tprivate _injectFindResultsCounter() {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst bind = this.bindTemplate;\n\t\tconst resultsCounterView = new View( this.locale );\n\n\t\tthis.bind( '_resultsCounterText' ).to( this, 'highlightOffset', this, 'matchCount',\n\t\t\t( highlightOffset, matchCount ) => t( '%0 of %1', [ highlightOffset, matchCount ] )\n\t\t);\n\n\t\tresultsCounterView.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-results-counter',\n\t\t\t\t\t// The counter only makes sense when the field text corresponds to search results in the editing.\n\t\t\t\t\tbind.if( 'isDirty', 'ck-hidden' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttext: bind.to( '_resultsCounterText' )\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// The whole idea is that when the text of the counter changes, its width also increases/decreases and\n\t\t// it consumes more or less space over the input. The input, on the other hand, should adjust it's right\n\t\t// padding so its *entire* text always remains visible and available to the user.\n\t\tconst updateFindInputPadding = () => {\n\t\t\tconst inputElement = this._findInputView.fieldView.element;\n\n\t\t\t// Don't adjust the padding if the input (also: counter) were not rendered or not inserted into DOM yet.\n\t\t\tif ( !inputElement || !isVisible( inputElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst counterWidth = new Rect( resultsCounterView.element! ).width;\n\t\t\tconst paddingPropertyName = locale.uiLanguageDirection === 'ltr' ? 'paddingRight' : 'paddingLeft';\n\n\t\t\tif ( !counterWidth ) {\n\t\t\t\tinputElement.style[ paddingPropertyName ] = '';\n\t\t\t} else {\n\t\t\t\tinputElement.style[ paddingPropertyName ] = `calc( 2 * var(--ck-spacing-standard) + ${ counterWidth }px )`;\n\t\t\t}\n\t\t};\n\n\t\t// Adjust the input padding when the text of the counter changes, for instance \"1 of 200\" is narrower than \"123 of 200\".\n\t\t// Using \"low\" priority to let the text be set by the template binding first.\n\t\tthis.on( 'change:_resultsCounterText', updateFindInputPadding, { priority: 'low' } );\n\n\t\t// Adjust the input padding when the counter shows or hides. When hidden, there should be no padding. When it shows, the\n\t\t// padding should be set according to the text of the counter.\n\t\t// Using \"low\" priority to let the text be set by the template binding first.\n\t\tthis.on( 'change:isDirty', updateFindInputPadding, { priority: 'low' } );\n\n\t\t// Put the counter element next to the <input> in the find field.\n\t\t( this._findInputView.template!.children![ 0 ] as Template ).children!.push( resultsCounterView );\n\t}\n\n\t/**\n\t * Configures and returns the `<fieldset>` aggregating all replace controls.\n\t */\n\tprivate _createReplaceFieldset(): View {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst fieldsetView = new View( this.locale );\n\n\t\tthis._replaceButtonView.bind( 'isEnabled' ).to(\n\t\t\tthis, '_areCommandsEnabled',\n\t\t\tthis, '_searchResultsFound',\n\t\t\t( { replace }, resultsFound ) => replace && resultsFound );\n\n\t\tthis._replaceAllButtonView.bind( 'isEnabled' ).to(\n\t\t\tthis, '_areCommandsEnabled',\n\t\t\tthis, '_searchResultsFound',\n\t\t\t( { replaceAll }, resultsFound ) => replaceAll && resultsFound );\n\n\t\tthis._replaceInputView.bind( 'isEnabled' ).to(\n\t\t\tthis, '_areCommandsEnabled',\n\t\t\tthis, '_searchResultsFound',\n\t\t\t( { replace }, resultsFound ) => replace && resultsFound );\n\n\t\tthis._replaceInputView.bind( 'infoText' ).to(\n\t\t\tthis._replaceInputView, 'isEnabled',\n\t\t\tthis._replaceInputView, 'isFocused',\n\t\t\t( isEnabled, isFocused ) => {\n\t\t\t\tif ( isEnabled || !isFocused ) {\n\t\t\t\t\treturn '';\n\t\t\t\t}\n\n\t\t\t\treturn t( 'Tip: Find some text first in order to replace it.' );\n\t\t\t} );\n\n\t\tthis._replaceButtonView.on( 'execute', () => {\n\t\t\tthis.fire( 'replace', {\n\t\t\t\tsearchText: this._textToFind,\n\t\t\t\treplaceText: this._textToReplace\n\t\t\t} );\n\t\t} );\n\n\t\tthis._replaceAllButtonView.on( 'execute', () => {\n\t\t\tthis.fire( 'replaceAll', {\n\t\t\t\tsearchText: this._textToFind,\n\t\t\t\treplaceText: this._textToReplace\n\t\t\t} );\n\n\t\t\tthis.focus();\n\t\t} );\n\n\t\tfieldsetView.setTemplate( {\n\t\t\ttag: 'fieldset',\n\t\t\tattributes: {\n\t\t\t\tclass: [ 'ck', 'ck-find-and-replace-form__replace' ]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis._replaceInputView,\n\t\t\t\tthis._optionsDropdown,\n\t\t\t\tthis._replaceButtonView,\n\t\t\t\tthis._replaceAllButtonView\n\t\t\t]\n\t\t} );\n\n\t\treturn fieldsetView;\n\t}\n\n\t/**\n\t * Creates, configures and returns and instance of a dropdown allowing users to narrow\n\t * the search criteria down. The dropdown has a list with switch buttons for each option.\n\t */\n\tprivate _createOptionsDropdown(): DropdownView {\n\t\tconst locale = this.locale;\n\t\tconst t = locale.t;\n\t\tconst dropdownView = createDropdown( this.locale );\n\n\t\tdropdownView.class = 'ck-options-dropdown';\n\n\t\tdropdownView.buttonView.set( {\n\t\t\twithText: false,\n\t\t\tlabel: t( 'Show options' ),\n\t\t\ticon: icons.cog,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tconst matchCaseModel = new Model( {\n\t\t\twithText: true,\n\t\t\tlabel: t( 'Match case' ),\n\n\t\t\t// A dummy read-only prop to make it easy to tell which switch was toggled.\n\t\t\t_isMatchCaseSwitch: true\n\t\t} );\n\n\t\tconst wholeWordsOnlyModel = new Model( {\n\t\t\twithText: true,\n\t\t\tlabel: t( 'Whole words only' )\n\t\t} );\n\n\t\t// Let the switches be controlled by form's observable properties.\n\t\tmatchCaseModel.bind( 'isOn' ).to( this, '_matchCase' );\n\t\twholeWordsOnlyModel.bind( 'isOn' ).to( this, '_wholeWordsOnly' );\n\n\t\t// Update the state of the form when a switch is toggled.\n\t\tdropdownView.on( 'execute', evt => {\n\t\t\tif ( ( evt.source as any )._isMatchCaseSwitch ) {\n\t\t\t\tthis._matchCase = !this._matchCase;\n\t\t\t} else {\n\t\t\t\tthis._wholeWordsOnly = !this._wholeWordsOnly;\n\t\t\t}\n\n\t\t\t// Toggling a switch makes the form dirty because this changes search criteria\n\t\t\t// just like typing text of the find input.\n\t\t\tthis.isDirty = true;\n\t\t} );\n\n\t\taddListToDropdown( dropdownView, new Collection( [\n\t\t\t{ type: 'switchbutton', model: matchCaseModel },\n\t\t\t{ type: 'switchbutton', model: wholeWordsOnlyModel }\n\t\t] ) );\n\n\t\treturn dropdownView;\n\t}\n\n\t/**\n\t * Initializes the {@link #_focusables} and {@link #_focusTracker} to allow navigation\n\t * using <kbd>Tab</kbd> and <kbd>Shift</kbd>+<kbd>Tab</kbd> keystrokes in the right order.\n\t */\n\tprivate _initFocusCycling() {\n\t\tconst childViews = [\n\t\t\tthis._findInputView,\n\t\t\tthis._findButtonView,\n\t\t\tthis._findPrevButtonView,\n\t\t\tthis._findNextButtonView,\n\t\t\tthis._replaceInputView,\n\t\t\tthis._optionsDropdown,\n\t\t\tthis._replaceButtonView,\n\t\t\tthis._replaceAllButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( v );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis._focusTracker.add( v.element! );\n\t\t} );\n\t}\n\n\t/**\n\t * Initializes the keystroke handling in the form.\n\t */\n\tprivate _initKeystrokeHandling() {\n\t\tconst stopPropagation = ( data: Event ) => data.stopPropagation();\n\t\tconst stopPropagationAndPreventDefault = ( data: Event ) => {\n\t\t\tdata.stopPropagation();\n\t\t\tdata.preventDefault();\n\t\t};\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis._keystrokes.listenTo( this.element! );\n\n\t\t// Find the next result upon F3.\n\t\tthis._keystrokes.set( 'f3', event => {\n\t\t\tstopPropagationAndPreventDefault( event );\n\n\t\t\tthis._findNextButtonView.fire( 'execute' );\n\t\t} );\n\n\t\t// Find the previous result upon F3.\n\t\tthis._keystrokes.set( 'shift+f3', event => {\n\t\t\tstopPropagationAndPreventDefault( event );\n\n\t\t\tthis._findPrevButtonView.fire( 'execute' );\n\t\t} );\n\n\t\t// Find or replace upon pressing Enter in the find and replace fields.\n\t\tthis._keystrokes.set( 'enter', event => {\n\t\t\tconst target = event.target;\n\n\t\t\tif ( target === this._findInputView.fieldView.element ) {\n\t\t\t\tif ( this._areCommandsEnabled.findNext ) {\n\t\t\t\t\tthis._findNextButtonView.fire( 'execute' );\n\t\t\t\t} else {\n\t\t\t\t\tthis._findButtonView.fire( 'execute' );\n\t\t\t\t}\n\t\t\t\tstopPropagationAndPreventDefault( event );\n\t\t\t} else if ( target === this._replaceInputView.fieldView.element && !this.isDirty ) {\n\t\t\t\tthis._replaceButtonView.fire( 'execute' );\n\t\t\t\tstopPropagationAndPreventDefault( event );\n\t\t\t}\n\t\t} );\n\n\t\t// Find previous upon pressing Shift+Enter in the find field.\n\t\tthis._keystrokes.set( 'shift+enter', event => {\n\t\t\tconst target = event.target;\n\n\t\t\tif ( target !== this._findInputView.fieldView.element ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( this._areCommandsEnabled.findPrevious ) {\n\t\t\t\tthis._findPrevButtonView.fire( 'execute' );\n\t\t\t} else {\n\t\t\t\tthis._findButtonView.fire( 'execute' );\n\t\t\t}\n\n\t\t\tstopPropagationAndPreventDefault( event );\n\t\t} );\n\n\t\t// Since the form is in the dropdown panel which is a child of the toolbar, the toolbar's\n\t\t// keystroke handler would take over the key management in the URL input.\n\t\t// We need to prevent this ASAP. Otherwise, the basic caret movement using the arrow keys will be impossible.\n\t\tthis._keystrokes.set( 'arrowright', stopPropagation );\n\t\tthis._keystrokes.set( 'arrowleft', stopPropagation );\n\t\tthis._keystrokes.set( 'arrowup', stopPropagation );\n\t\tthis._keystrokes.set( 'arrowdown', stopPropagation );\n\n\t\t// Intercept the `selectstart` event, which is blocked by default because of the default behavior\n\t\t// of the DropdownView#panelView. This blocking prevents the native select all on Ctrl+A.\n\t\tthis.listenTo( this._findInputView.element!, 'selectstart', ( evt, domEvt ) => {\n\t\t\tdomEvt.stopPropagation();\n\t\t}, { priority: 'high' } );\n\n\t\tthis.listenTo( this._replaceInputView.element!, 'selectstart', ( evt, domEvt ) => {\n\t\t\tdomEvt.stopPropagation();\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Creates a button view.\n\t *\n\t * @param options The properties of the `ButtonView`.\n\t * @returns The button view instance.\n\t */\n\tprivate _createButton( options: object ): ButtonView {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( options );\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Creates a labeled input view.\n\t *\n\t * @param label The input label.\n\t * @returns The labeled input view instance.\n\t */\n\tprivate _createInputField( label: string ): LabeledFieldView<InputView> {\n\t\tconst labeledInput = new LabeledFieldView( this.locale, createLabeledInputText );\n\n\t\tlabeledInput.label = label;\n\n\t\treturn labeledInput;\n\t}\n}\n\n/**\n * Fired when the find next button is triggered.\n *\n * @eventName ~FindAndReplaceFormView#findNext\n * @param data The event data.\n */\nexport type FindNextEvent = {\n\tname: 'findNext';\n\targs: [ data?: FindNextEventData ];\n};\n\nexport type FindNextEventData = FindEventBaseData & {\n\tmatchCase: boolean;\n\twholeWords: boolean;\n};\n\n/**\n * Fired when the find previous button is triggered.\n *\n * @eventName ~FindAndReplaceFormView#findPrevious\n * @param data The event data.\n */\nexport type FindPreviousEvent = {\n\tname: 'findPrevious';\n\targs: [ data?: FindEventBaseData ];\n};\n\n/**\n * Base type for all find/replace events.\n */\nexport type FindEventBaseData = {\n\tsearchText: string;\n};\n\n/**\n * Fired when the replace button is triggered.\n *\n * @eventName ~FindAndReplaceFormView#replace\n * @param data The event data.\n */\nexport type ReplaceEvent = {\n\tname: 'replace';\n\targs: [ data: ReplaceEventData ];\n};\n\nexport type ReplaceEventData = FindEventBaseData & {\n\treplaceText: string;\n};\n\n/**\n * Fired when the replaceAll button is triggered.\n *\n * @eventName ~FindAndReplaceFormView#replaceAll\n * @param data The event data.\n */\nexport type ReplaceAllEvent = {\n\tname: 'replaceAll';\n\targs: [ data: ReplaceEventData ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplaceui\n */\n\nimport { type Editor, Plugin } from 'ckeditor5/src/core';\nimport { createDropdown, CssTransitionDisablerMixin, type DropdownView, type ViewWithCssTransitionDisabler } from 'ckeditor5/src/ui';\nimport FindAndReplaceFormView from './ui/findandreplaceformview';\n\nimport loupeIcon from '../theme/icons/find-replace.svg';\nimport type FindAndReplaceEditing from './findandreplaceediting';\nimport type FindCommand from './findcommand';\nimport type FindNextCommand from './findnextcommand';\nimport type FindPreviousCommand from './findpreviouscommand';\nimport type ReplaceCommand from './replacecommand';\nimport type ReplaceAllCommand from './replaceallcommand';\n\n/**\n * The default find and replace UI.\n *\n * It registers the `'findAndReplace'` UI button in the editor's {@link module:ui/componentfactory~ComponentFactory component factory}.\n * that uses the {@link module:find-and-replace/findandreplace~FindAndReplace FindAndReplace} plugin API.\n */\nexport default class FindAndReplaceUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FindAndReplaceUI' {\n\t\treturn 'FindAndReplaceUI';\n\t}\n\n\t/**\n\t * A reference to the find and replace form view.\n\t */\n\tpublic formView: FindAndReplaceFormView & ViewWithCssTransitionDisabler | null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis.formView = null;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Register the toolbar dropdown component.\n\t\teditor.ui.componentFactory.add( 'findAndReplace', locale => {\n\t\t\tconst dropdown = createDropdown( locale );\n\n\t\t\t// Dropdown should be disabled when in source editing mode. See #10001.\n\t\t\tconst findCommand: FindCommand = editor.commands.get( 'find' )!;\n\t\t\tdropdown.bind( 'isEnabled' ).to( findCommand );\n\n\t\t\tdropdown.once( 'change:isOpen', () => {\n\t\t\t\tthis.formView = new ( CssTransitionDisablerMixin( FindAndReplaceFormView ) )( editor.locale );\n\n\t\t\t\tdropdown.panelView.children.add( this.formView );\n\n\t\t\t\tthis._setupFormView( this.formView );\n\t\t\t} );\n\n\t\t\t// Every time a dropdown is opened, the search text field should get focused and selected for better UX.\n\t\t\t// Note: Using the low priority here to make sure the following listener starts working after\n\t\t\t// the default action of the drop-down is executed (i.e. the panel showed up). Otherwise,\n\t\t\t// the invisible form/input cannot be focused/selected.\n\t\t\t//\n\t\t\t// Each time a dropdown is closed, move the focus back to the find and replace toolbar button\n\t\t\t// and let the find and replace editing feature know that all search results can be invalidated\n\t\t\t// and no longer should be marked in the content.\n\t\t\tdropdown.on( 'change:isOpen', ( event, name, isOpen ) => {\n\t\t\t\tif ( isOpen ) {\n\t\t\t\t\tthis.formView!.disableCssTransitions();\n\n\t\t\t\t\tthis.formView!.reset();\n\t\t\t\t\tthis.formView!._findInputView.fieldView.select();\n\n\t\t\t\t\tthis.formView!.enableCssTransitions();\n\t\t\t\t} else {\n\t\t\t\t\tthis.fire( 'searchReseted' );\n\t\t\t\t}\n\t\t\t}, { priority: 'low' } );\n\n\t\t\tthis._setupDropdownButton( dropdown );\n\n\t\t\treturn dropdown;\n\t\t} );\n\t}\n\n\t/**\n\t * Sets up the find and replace button.\n\t */\n\tprivate _setupDropdownButton( dropdown: DropdownView ) {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.locale.t;\n\n\t\tdropdown.buttonView.set( {\n\t\t\ticon: loupeIcon,\n\t\t\tlabel: t( 'Find and replace' ),\n\t\t\t// FIXME: keyboard shortcut doesn't work: https://github.com/ckeditor/ckeditor5/issues/10645\n\t\t\t// keystroke: 'CTRL+F',\n\t\t\ttooltip: true\n\t\t} );\n\n\t\t// FIXME: keyboard shortcut doesn't work: https://github.com/ckeditor/ckeditor5/issues/10645\n\t\t// editor.keystrokes.set( 'Ctrl+F', ( data, cancelEvent ) => {\n\t\t// \tif ( dropdown.isEnabled ) {\n\t\t// \t\tdropdown.isOpen = true;\n\t\t// \t\tcancelEvent();\n\t\t// \t}\n\t\t// } );\n\t}\n\n\t/**\n\t * Sets up the form view for the find and replace.\n\t *\n\t * @param formView A related form view.\n\t */\n\tprivate _setupFormView( formView: FindAndReplaceFormView ) {\n\t\tconst editor = this.editor;\n\t\tconst commands = editor.commands;\n\t\tconst findAndReplaceEditing: FindAndReplaceEditing = this.editor.plugins.get( 'FindAndReplaceEditing' );\n\t\tconst editingState = findAndReplaceEditing.state!;\n\t\tconst sortMapping = { before: -1, same: 0, after: 1, different: 1 };\n\n\t\t// Let the form know which result is being highlighted.\n\t\tformView.bind( 'highlightOffset' ).to( editingState, 'highlightedResult', highlightedResult => {\n\t\t\tif ( !highlightedResult ) {\n\t\t\t\treturn 0;\n\t\t\t}\n\n\t\t\treturn Array.from( editingState.results )\n\t\t\t\t.sort( ( a, b ) => sortMapping[ a.marker!.getStart().compareWith( b.marker!.getStart() ) ] )\n\t\t\t\t.indexOf( highlightedResult ) + 1;\n\t\t} );\n\n\t\t// Let the form know how many results were found in total.\n\t\tformView.listenTo( editingState.results, 'change', () => {\n\t\t\tformView.matchCount = editingState.results.length;\n\t\t} );\n\n\t\t// Command states are used to enable/disable individual form controls.\n\t\t// To keep things simple, instead of binding 4 individual observables, there's only one that combines every\n\t\t// commands' isEnabled state. Yes, it will change more often but this simplifies the structure of the form.\n\t\tconst findNextCommand: FindNextCommand = commands.get( 'findNext' )!;\n\t\tconst findPreviousCommand: FindPreviousCommand = commands.get( 'findPrevious' )!;\n\t\tconst replaceCommand: ReplaceCommand = commands.get( 'replace' )!;\n\t\tconst replaceAllCommand: ReplaceAllCommand = commands.get( 'replaceAll' )!;\n\t\tformView.bind( '_areCommandsEnabled' ).to(\n\t\t\tfindNextCommand, 'isEnabled',\n\t\t\tfindPreviousCommand, 'isEnabled',\n\t\t\treplaceCommand, 'isEnabled',\n\t\t\treplaceAllCommand, 'isEnabled',\n\t\t\t( findNext, findPrevious, replace, replaceAll ) => ( { findNext, findPrevious, replace, replaceAll } )\n\t\t);\n\n\t\t// The UI plugin works as an interface between the form and the editing part of the feature.\n\t\tformView.delegate( 'findNext', 'findPrevious', 'replace', 'replaceAll' ).to( this );\n\n\t\t// Let the feature know that search results are no longer relevant because the user changed the searched phrase\n\t\t// (or options) but didn't hit the \"Find\" button yet (e.g. still typing).\n\t\tformView.on( 'change:isDirty', ( evt, data, isDirty ) => {\n\t\t\tif ( isDirty ) {\n\t\t\t\tthis.fire( 'searchReseted' );\n\t\t\t}\n\t\t} );\n\t}\n}\n\n/**\n * Fired when the UI was reset and the search results marked in the editing root should be invalidated,\n * for instance, because the user changed the searched phrase (or options) but didn't hit\n * the \"Find\" button yet.\n *\n * @eventName ~FindAndReplaceUI#searchReseted\n */\nexport type SearchResetedEvent = {\n\tname: 'searchReseted';\n\targs: [];\n};\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m12.87 13.786 1.532-1.286 3.857 4.596a1 1 0 1 1-1.532 1.286l-3.857-4.596z\\\"/><path d=\\\"M16.004 8.5a6.5 6.5 0 0 1-9.216 5.905c-1.154-.53-.863-1.415-.663-1.615.194-.194.564-.592 1.635-.141a4.5 4.5 0 0 0 5.89-5.904l-.104-.227 1.332-1.331c.045-.046.196-.041.224.007a6.47 6.47 0 0 1 .902 3.306zm-3.4-5.715c.562.305.742 1.106.354 1.494-.388.388-.995.414-1.476.178a4.5 4.5 0 0 0-6.086 5.882l.114.236-1.348 1.349c-.038.037-.17.022-.198-.023a6.5 6.5 0 0 1 5.54-9.9 6.469 6.469 0 0 1 3.1.784z\\\"/><path d=\\\"M4.001 11.93.948 8.877a.2.2 0 0 1 .141-.341h6.106a.2.2 0 0 1 .141.341L4.283 11.93a.2.2 0 0 1-.282 0zm11.083-6.789 3.053 3.053a.2.2 0 0 1-.14.342H11.89a.2.2 0 0 1-.14-.342l3.052-3.053a.2.2 0 0 1 .282 0z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findcommand\n*/\n\nimport type { Item } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { Collection } from 'ckeditor5/src/utils';\n\nimport type FindAndReplaceState from './findandreplacestate';\nimport type { ResultType } from './findandreplace';\nimport type FindAndReplaceUtils from './findandreplaceutils';\n\n/**\n * The find command. It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n */\nexport default class FindCommand extends Command {\n\t/**\n\t * The find and replace state object used for command operations.\n\t */\n\tprivate _state: FindAndReplaceState;\n\n\t/**\n\t * Creates a new `FindCommand` instance.\n\t *\n\t * @param editor The editor on which this command will be used.\n\t * @param state An object to hold plugin state.\n\t */\n\tconstructor( editor: Editor, state: FindAndReplaceState ) {\n\t\tsuper( editor );\n\n\t\t// The find command is always enabled.\n\t\tthis.isEnabled = true;\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\n\t\tthis._state = state;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @param callbackOrText\n\t * @param options Options object.\n\t * @param options.matchCase If set to `true`, the letter case will be matched.\n\t * @param options.wholeWords If set to `true`, only whole words that match `callbackOrText` will be matched.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(\n\t\tcallbackOrText: string | ( ( { item, text }: { item: Item; text: string } ) => Array<ResultType> ),\n\t\t{ matchCase, wholeWords }: { matchCase?: boolean; wholeWords?: boolean } = {}\n\t): { results: Collection<ResultType>; findCallback: ( ( { item, text }: { item: Item; text: string } ) => Array<ResultType> ) } {\n\t\tconst { editor } = this;\n\t\tconst { model } = editor;\n\t\tconst findAndReplaceUtils: FindAndReplaceUtils = editor.plugins.get( 'FindAndReplaceUtils' );\n\n\t\tlet findCallback: ( ( { item, text }: { item: Item; text: string } ) => Array<ResultType> ) | undefined;\n\n\t\t// Allow to execute `find()` on a plugin with a keyword only.\n\t\tif ( typeof callbackOrText === 'string' ) {\n\t\t\tfindCallback = findAndReplaceUtils.findByTextCallback( callbackOrText, { matchCase, wholeWords } );\n\n\t\t\tthis._state.searchText = callbackOrText;\n\t\t} else {\n\t\t\tfindCallback = callbackOrText;\n\t\t}\n\n\t\t// Initial search is done on all nodes in all roots inside the content.\n\t\tconst results = model.document.getRootNames()\n\t\t\t.reduce( ( ( currentResults: Collection<ResultType> | null, rootName ) => findAndReplaceUtils.updateFindResultFromRange(\n\t\t\t\tmodel.createRangeIn( model.document.getRoot( rootName )! ),\n\t\t\t\tmodel,\n\t\t\t\tfindCallback!,\n\t\t\t\tcurrentResults\n\t\t\t) ), null )!;\n\n\t\tthis._state.clear( model );\n\t\tthis._state.results.addMany( results );\n\t\tthis._state.highlightedResult = results.get( 0 );\n\n\t\tif ( typeof callbackOrText === 'string' ) {\n\t\t\tthis._state.searchText = callbackOrText;\n\t\t}\n\n\t\tthis._state.matchCase = !!matchCase;\n\t\tthis._state.matchWholeWords = !!wholeWords;\n\n\t\treturn {\n\t\t\tresults,\n\t\t\tfindCallback\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/replacecommandbase\n*/\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { ResultType } from './findandreplace';\nimport type FindAndReplaceState from './findandreplacestate';\n\nexport abstract class ReplaceCommandBase extends Command {\n\t/**\n\t * The find and replace state object used for command operations.\n\t */\n\tprotected _state: FindAndReplaceState;\n\n\t/**\n\t * Creates a new `ReplaceCommand` instance.\n\t *\n\t * @param editor Editor on which this command will be used.\n\t * @param state An object to hold plugin state.\n\t */\n\tconstructor( editor: Editor, state: FindAndReplaceState ) {\n\t\tsuper( editor );\n\n\t\t// The replace command is always enabled.\n\t\tthis.isEnabled = true;\n\n\t\tthis._state = state;\n\t}\n\n\tpublic abstract override execute( ...args: Array<unknown> ): void;\n\n\t/**\n\t * Common logic for both `replace` commands.\n\t * Replace a given find result by a string or a callback.\n\t *\n\t * @param result A single result from the find command.\n\t */\n\tprotected _replace( replacementText: string, result: ResultType ): void {\n\t\tconst { model } = this.editor;\n\n\t\tmodel.change( writer => {\n\t\t\tconst range = result.marker!.getRange();\n\n\t\t\t// Don't replace a result (marker) that found its way into the $graveyard (e.g. removed by collaborators).\n\t\t\tif ( range.root.rootName === '$graveyard' ) {\n\t\t\t\tthis._state.results.remove( result );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet textAttributes = {};\n\n\t\t\tfor ( const item of range.getItems() ) {\n\t\t\t\tif ( item.is( '$text' ) || item.is( '$textProxy' ) ) {\n\t\t\t\t\ttextAttributes = item.getAttributes();\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tmodel.insertContent( writer.createText( replacementText, textAttributes ), range );\n\n\t\t\tif ( this._state.results.has( result ) ) {\n\t\t\t\tthis._state.results.remove( result );\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/replacecommand\n*/\n\nimport type { ResultType } from './findandreplace';\nimport { ReplaceCommandBase } from './replacecommandbase';\n\n/**\n * The replace command. It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n */\nexport default class ReplaceCommand extends ReplaceCommandBase {\n\t/**\n\t * Replace a given find result by a string or a callback.\n\t *\n\t * @param result A single result from the find command.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute( replacementText: string, result: ResultType ): void {\n\t\tthis._replace( replacementText, result );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/replaceallcommand\n */\n\nimport { Collection } from 'ckeditor5/src/utils';\nimport type { ResultType } from './findandreplace';\nimport type FindAndReplaceUtils from './findandreplaceutils';\nimport { ReplaceCommandBase } from './replacecommandbase';\n\n/**\n * The replace all command. It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n */\nexport default class ReplaceAllCommand extends ReplaceCommandBase {\n\t/**\n\t * Replaces all the occurrences of `textToReplace` with a given `newText` string.\n\t *\n\t * ```ts\n\t *\treplaceAllCommand.execute( 'replaceAll', 'new text replacement', 'text to replace' );\n\t * ```\n\t *\n\t * Alternatively you can call it from editor instance:\n\t *\n\t * ```ts\n\t *\teditor.execute( 'replaceAll', 'new text', 'old text' );\n\t * ```\n\t *\n\t * @param newText Text that will be inserted to the editor for each match.\n\t * @param textToReplace Text to be replaced or a collection of matches\n\t * as returned by the find command.\n\t *\n\t * @fires module:core/command~Command#event:execute\n\t */\n\tpublic override execute( newText: string, textToReplace: string | Collection<ResultType> ): void {\n\t\tconst { editor } = this;\n\t\tconst { model } = editor;\n\t\tconst findAndReplaceUtils: FindAndReplaceUtils = editor.plugins.get( 'FindAndReplaceUtils' );\n\n\t\tconst results = textToReplace instanceof Collection ?\n\t\t\ttextToReplace : model.document.getRootNames()\n\t\t\t\t.reduce( ( ( currentResults: Collection<ResultType> | null, rootName ) => findAndReplaceUtils.updateFindResultFromRange(\n\t\t\t\t\tmodel.createRangeIn( model.document.getRoot( rootName )! ),\n\t\t\t\t\tmodel,\n\t\t\t\t\tfindAndReplaceUtils.findByTextCallback( textToReplace, this._state ),\n\t\t\t\t\tcurrentResults\n\t\t\t\t) ), null as Collection<ResultType> | null )!;\n\n\t\tif ( results.length ) {\n\t\t\t[ ...results ].forEach( searchResult => {\n\t\t\t\t// Just reuse logic from the replace command to replace a single match.\n\t\t\t\tthis._replace( newText, searchResult );\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findnextcommand\n*/\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type FindAndReplaceState from './findandreplacestate';\n\n/**\n * The find next command. Moves the highlight to the next search result.\n *\n * It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n */\nexport default class FindNextCommand extends Command {\n\t/**\n\t * The find and replace state object used for command operations.\n\t */\n\tprotected _state: FindAndReplaceState;\n\n\t/**\n\t * Creates a new `FindNextCommand` instance.\n\t *\n\t * @param editor The editor on which this command will be used.\n\t * @param state An object to hold plugin state.\n\t */\n\tconstructor( editor: Editor, state: FindAndReplaceState ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\n\t\tthis._state = state;\n\n\t\tthis.isEnabled = false;\n\n\t\tthis.listenTo( this._state.results, 'change', () => {\n\t\t\tthis.isEnabled = this._state.results.length > 1;\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.isEnabled = this._state.results.length > 1;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst results = this._state.results;\n\t\tconst currentIndex = results.getIndex( this._state.highlightedResult! );\n\t\tconst nextIndex = currentIndex + 1 >= results.length ?\n\t\t\t0 : currentIndex + 1;\n\n\t\tthis._state.highlightedResult = this._state.results.get( nextIndex );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findpreviouscommand\n*/\n\nimport FindNextCommand from './findnextcommand';\n\n/**\n * The find previous command. Moves the highlight to the previous search result.\n *\n * It is used by the {@link module:find-and-replace/findandreplace~FindAndReplace find and replace feature}.\n */\nexport default class FindPreviousCommand extends FindNextCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst results = this._state.results;\n\t\tconst currentIndex = results.getIndex( this._state.highlightedResult! );\n\t\tconst previousIndex = currentIndex - 1 < 0 ?\n\t\t\tthis._state.results.length - 1 : currentIndex - 1;\n\n\t\tthis._state.highlightedResult = this._state.results.get( previousIndex );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplacestate\n */\n\nimport type { Model } from 'ckeditor5/src/engine';\nimport { ObservableMixin, Collection, type CollectionChangeEvent } from 'ckeditor5/src/utils';\nimport type { ResultType } from './findandreplace';\n\n/**\n * The object storing find and replace plugin state for a given editor instance.\n */\nexport default class FindAndReplaceState extends ObservableMixin() {\n\t/**\n\t * A collection of find matches.\n\t *\n\t * @observable\n\t */\n\tdeclare public results: Collection<ResultType>;\n\n\t/**\n\t * Currently highlighted search result in {@link #results matched results}.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public highlightedResult: ResultType | null;\n\n\t/**\n\t * Searched text value.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public searchText: string;\n\n\t/**\n\t * Replace text value.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public replaceText: string;\n\n\t/**\n\t * Indicates whether the matchCase checkbox has been checked.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public matchCase: boolean;\n\n\t/**\n\t * Indicates whether the matchWholeWords checkbox has been checked.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public matchWholeWords: boolean;\n\n\t/**\n\t * Creates an instance of the state.\n\t */\n\tpublic constructor( model: Model ) {\n\t\tsuper();\n\n\t\tthis.set( 'results', new Collection() );\n\t\tthis.set( 'highlightedResult', null );\n\t\tthis.set( 'searchText', '' );\n\t\tthis.set( 'replaceText', '' );\n\t\tthis.set( 'matchCase', false );\n\t\tthis.set( 'matchWholeWords', false );\n\n\t\tthis.results.on<CollectionChangeEvent<ResultType>>( 'change', ( eventInfo, { removed, index } ) => {\n\t\t\tif ( Array.from( removed ).length ) {\n\t\t\t\tlet highlightedResultRemoved = false;\n\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\tfor ( const removedResult of removed ) {\n\t\t\t\t\t\tif ( this.highlightedResult === removedResult ) {\n\t\t\t\t\t\t\thighlightedResultRemoved = true;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( model.markers.has( removedResult.marker!.name ) ) {\n\t\t\t\t\t\t\twriter.removeMarker( removedResult.marker! );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t} );\n\n\t\t\t\tif ( highlightedResultRemoved ) {\n\t\t\t\t\tconst nextHighlightedIndex = index >= this.results.length ? 0 : index;\n\t\t\t\t\tthis.highlightedResult = this.results.get( nextHighlightedIndex );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Cleans the state up and removes markers from the model.\n\t */\n\tpublic clear( model: Model ): void {\n\t\tthis.searchText = '';\n\n\t\tmodel.change( writer => {\n\t\t\tif ( this.highlightedResult ) {\n\t\t\t\tconst oldMatchId = this.highlightedResult.marker!.name.split( ':' )[ 1 ];\n\t\t\t\tconst oldMarker = model.markers.get( `findResultHighlighted:${ oldMatchId }` );\n\n\t\t\t\tif ( oldMarker ) {\n\t\t\t\t\twriter.removeMarker( oldMarker );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t[ ...this.results ].forEach( ( { marker } ) => {\n\t\t\t\twriter.removeMarker( marker! );\n\t\t\t} );\n\t\t} );\n\n\t\tthis.results.clear();\n\t}\n}\n\n","import toString from './toString.js';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n    reHasRegExpChar = RegExp(reRegExpChar.source);\n\n/**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\nfunction escapeRegExp(string) {\n  string = toString(string);\n  return (string && reHasRegExpChar.test(string))\n    ? string.replace(reRegExpChar, '\\\\$&')\n    : string;\n}\n\nexport default escapeRegExp;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplaceutils\n */\n\nimport type { Element, Item, Marker, Model, Range } from 'ckeditor5/src/engine';\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Collection, uid } from 'ckeditor5/src/utils';\nimport { escapeRegExp } from 'lodash-es';\nimport type { ResultType } from './findandreplace';\n\n/**\n * A set of helpers related to find and replace.\n */\nexport default class FindAndReplaceUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FindAndReplaceUtils' {\n\t\treturn 'FindAndReplaceUtils';\n\t}\n\n\t/**\n\t * Executes findCallback and updates search results list.\n\t *\n\t * @param range The model range to scan for matches.\n\t * @param model The model.\n\t * @param findCallback The callback that should return `true` if provided text matches the search term.\n\t * @param startResults An optional collection of find matches that the function should\n\t * start with. This would be a collection returned by a previous `updateFindResultFromRange()` call.\n\t * @returns A collection of objects describing find match.\n\t *\n\t * An example structure:\n\t *\n\t * ```js\n\t * {\n\t *\tid: resultId,\n\t *\tlabel: foundItem.label,\n\t *\tmarker\n\t *\t}\n\t * ```\n\t */\n\tpublic updateFindResultFromRange(\n\t\trange: Range,\n\t\tmodel: Model,\n\t\tfindCallback: ( { item, text }: { item: Item; text: string } ) => Array<ResultType>,\n\t\tstartResults: Collection<ResultType> | null\n\t): Collection<ResultType> {\n\t\tconst results = startResults || new Collection();\n\n\t\tmodel.change( writer => {\n\t\t\t[ ...range ].forEach( ( { type, item } ) => {\n\t\t\t\tif ( type === 'elementStart' ) {\n\t\t\t\t\tif ( model.schema.checkChild( item, '$text' ) ) {\n\t\t\t\t\t\tconst foundItems = findCallback( {\n\t\t\t\t\t\t\titem,\n\t\t\t\t\t\t\ttext: this.rangeToText( model.createRangeIn( item as Element ) )\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t\tif ( !foundItems ) {\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfoundItems.forEach( foundItem => {\n\t\t\t\t\t\t\tconst resultId = `findResult:${ uid() }`;\n\t\t\t\t\t\t\tconst marker = writer.addMarker( resultId, {\n\t\t\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\t\t\trange: writer.createRange(\n\t\t\t\t\t\t\t\t\twriter.createPositionAt( item, foundItem.start ),\n\t\t\t\t\t\t\t\t\twriter.createPositionAt( item, foundItem.end )\n\t\t\t\t\t\t\t\t)\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t\tconst index = findInsertIndex( results, marker );\n\n\t\t\t\t\t\t\tresults.add(\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tid: resultId,\n\t\t\t\t\t\t\t\t\tlabel: foundItem.label,\n\t\t\t\t\t\t\t\t\tmarker\n\t\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\t\tindex\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t} );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\n\t\treturn results;\n\t}\n\n\t/**\n\t * Returns text representation of a range. The returned text length should be the same as range length.\n\t * In order to achieve this, this function will replace inline elements (text-line) as new line character (\"\\n\").\n\t *\n\t * @param range The model range.\n\t * @returns The text content of the provided range.\n\t */\n\tpublic rangeToText( range: Range ): string {\n\t\treturn Array.from( range.getItems() ).reduce( ( rangeText, node ) => {\n\t\t\t// Trim text to a last occurrence of an inline element and update range start.\n\t\t\tif ( !( node.is( '$text' ) || node.is( '$textProxy' ) ) ) {\n\t\t\t\t// Editor has only one inline element defined in schema: `<softBreak>` which is treated as new line character in blocks.\n\t\t\t\t// Special handling might be needed for other inline elements (inline widgets).\n\t\t\t\treturn `${ rangeText }\\n`;\n\t\t\t}\n\n\t\t\treturn rangeText + node.data;\n\t\t}, '' );\n\t}\n\n\t/**\n\t * Creates a text matching callback for a specified search term and matching options.\n\t *\n\t * @param searchTerm The search term.\n\t * @param options Matching options.\n\t * \t- options.matchCase=false If set to `true` letter casing will be ignored.\n\t * \t- options.wholeWords=false If set to `true` only whole words that match `callbackOrText` will be matched.\n\t */\n\tpublic findByTextCallback(\n\t\tsearchTerm: string,\n\t\toptions: { matchCase?: boolean; wholeWords?: boolean }\n\t): ( { item, text }: { item: Item; text: string } ) => Array<ResultType> {\n\t\tlet flags = 'gu';\n\n\t\tif ( !options.matchCase ) {\n\t\t\tflags += 'i';\n\t\t}\n\n\t\tlet regExpQuery = `(${ escapeRegExp( searchTerm ) })`;\n\n\t\tif ( options.wholeWords ) {\n\t\t\tconst nonLetterGroup = '[^a-zA-Z\\u00C0-\\u024F\\u1E00-\\u1EFF]';\n\n\t\t\tif ( !new RegExp( '^' + nonLetterGroup ).test( searchTerm ) ) {\n\t\t\t\tregExpQuery = `(^|${ nonLetterGroup }|_)${ regExpQuery }`;\n\t\t\t}\n\n\t\t\tif ( !new RegExp( nonLetterGroup + '$' ).test( searchTerm ) ) {\n\t\t\t\tregExpQuery = `${ regExpQuery }(?=_|${ nonLetterGroup }|$)`;\n\t\t\t}\n\t\t}\n\n\t\tconst regExp = new RegExp( regExpQuery, flags );\n\n\t\tfunction findCallback( { text }: { text: string } ) {\n\t\t\tconst matches = [ ...text.matchAll( regExp ) ];\n\n\t\t\treturn matches.map( regexpMatchToFindResult );\n\t\t}\n\n\t\treturn findCallback;\n\t}\n}\n\n// Finds the appropriate index in the resultsList Collection.\nfunction findInsertIndex( resultsList: Collection<any>, markerToInsert: Marker ) {\n\tconst result = resultsList.find( ( { marker } ) => {\n\t\treturn markerToInsert.getStart().isBefore( marker.getStart() );\n\t} );\n\n\treturn result ? resultsList.getIndex( result ) : resultsList.length;\n}\n\n/**\n *  Maps RegExp match result to find result.\n */\nfunction regexpMatchToFindResult( matchResult: RegExpMatchArray ): ResultType {\n\tconst lastGroupIndex = matchResult.length - 1;\n\n\tlet startOffset = matchResult.index!;\n\n\t// Searches with match all flag have an extra matching group with empty string or white space matched before the word.\n\t// If the search term starts with the space already, there is no extra group even with match all flag on.\n\tif ( matchResult.length === 3 ) {\n\t\tstartOffset += matchResult[ 1 ].length;\n\t}\n\n\treturn {\n\t\tlabel: matchResult[ lastGroupIndex ],\n\t\tstart: startOffset,\n\t\tend: startOffset + matchResult[ lastGroupIndex ].length\n\t};\n}\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./findandreplace.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplaceediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport type { DiffItem, DiffItemAttribute, Element, Item, Node } from 'ckeditor5/src/engine';\nimport type { Collection, GetCallback, ObservableChangeEvent } from 'ckeditor5/src/utils';\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport { scrollViewportToShowTarget } from '@ckeditor/ckeditor5-utils/src/dom/scroll';\n\nimport FindCommand from './findcommand';\nimport ReplaceCommand from './replacecommand';\nimport ReplaceAllCommand from './replaceallcommand';\nimport FindNextCommand from './findnextcommand';\nimport FindPreviousCommand from './findpreviouscommand';\nimport FindAndReplaceState from './findandreplacestate';\nimport FindAndReplaceUtils from './findandreplaceutils';\nimport type { ResultType } from './findandreplace';\n\nimport { debounce } from 'lodash-es';\n\nimport '../theme/findandreplace.css';\n\nconst HIGHLIGHT_CLASS = 'ck-find-result_selected';\n\n/**\n * Reacts to document changes in order to update search list.\n */\nfunction onDocumentChange(\n\tresults: Collection<ResultType>,\n\teditor: Editor,\n\tsearchCallback: ( ( { item, text }: { item: Item; text: string } ) => Array<ResultType> )\n) {\n\tconst changedNodes = new Set<Node>();\n\tconst removedMarkers = new Set<string>();\n\tconst model = editor.model;\n\n\tconst changes = model.document.differ.getChanges() as Array<Exclude<DiffItem, DiffItemAttribute>>;\n\n\t// Get nodes in which changes happened to re-run a search callback on them.\n\tchanges.forEach( change => {\n\t\tif ( change.name === '$text' || model.schema.isInline( change.position.nodeAfter! ) ) {\n\t\t\tchangedNodes.add( change.position.parent as Element );\n\n\t\t\t[ ...model.markers.getMarkersAtPosition( change.position ) ].forEach( markerAtChange => {\n\t\t\t\tremovedMarkers.add( markerAtChange.name );\n\t\t\t} );\n\t\t} else if ( change.type === 'insert' ) {\n\t\t\tchangedNodes.add( change.position.nodeAfter! );\n\t\t}\n\t} );\n\n\t// Get markers from removed nodes also.\n\tmodel.document.differ.getChangedMarkers().forEach( ( { name, data: { newRange } } ) => {\n\t\tif ( newRange && newRange.start.root.rootName === '$graveyard' ) {\n\t\t\tremovedMarkers.add( name );\n\t\t}\n\t} );\n\n\t// Get markers from the updated nodes and remove all (search will be re-run on these nodes).\n\tchangedNodes.forEach( node => {\n\t\tconst markersInNode = [ ...model.markers.getMarkersIntersectingRange( model.createRangeIn( node as Element ) ) ];\n\n\t\tmarkersInNode.forEach( marker => removedMarkers.add( marker.name ) );\n\t} );\n\n\t// Remove results & markers from the changed part of content.\n\tmodel.change( writer => {\n\t\tremovedMarkers.forEach( markerName => {\n\t\t\t// Remove the result first - in order to prevent rendering a removed marker.\n\t\t\tif ( results.has( markerName ) ) {\n\t\t\t\tresults.remove( markerName );\n\t\t\t}\n\n\t\t\twriter.removeMarker( markerName );\n\t\t} );\n\t} );\n\n\t// Run search callback again on updated nodes.\n\tchangedNodes.forEach( nodeToCheck => {\n\t\tconst findAndReplaceUtils: FindAndReplaceUtils = editor.plugins.get( 'FindAndReplaceUtils' );\n\t\tfindAndReplaceUtils.updateFindResultFromRange( model.createRangeOn( nodeToCheck ), model, searchCallback, results );\n\t} );\n}\n\n/**\n * Implements the editing part for find and replace plugin. For example conversion, commands etc.\n */\nexport default class FindAndReplaceEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FindAndReplaceUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FindAndReplaceEditing' {\n\t\treturn 'FindAndReplaceEditing';\n\t}\n\n\t/**\n\t * The collection of currently highlighted search results.\n\t *\n\t * @private\n\t * @member {module:utils/collection~Collection} #_activeResults\n\t */\n\tprivate _activeResults?: Collection<ResultType> | null;\n\n\t/**\n\t * An object storing the find and replace state within a given editor instance.\n\t *\n\t * @member {module:find-and-replace/findandreplacestate~FindAndReplaceState} #state\n\t */\n\tpublic state?: FindAndReplaceState;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tthis._activeResults = null;\n\n\t\tthis.state = new FindAndReplaceState( this.editor.model );\n\n\t\tthis._defineConverters();\n\t\tthis._defineCommands();\n\n\t\tthis.listenTo( this.state, 'change:highlightedResult', ( eventInfo, name, newValue, oldValue ) => {\n\t\t\tconst { model } = this.editor;\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tif ( oldValue ) {\n\t\t\t\t\tconst oldMatchId = oldValue.marker.name.split( ':' )[ 1 ];\n\t\t\t\t\tconst oldMarker = model.markers.get( `findResultHighlighted:${ oldMatchId }` );\n\n\t\t\t\t\tif ( oldMarker ) {\n\t\t\t\t\t\twriter.removeMarker( oldMarker );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( newValue ) {\n\t\t\t\t\tconst newMatchId = newValue.marker.name.split( ':' )[ 1 ];\n\t\t\t\t\twriter.addMarker( `findResultHighlighted:${ newMatchId }`, {\n\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\trange: newValue.marker.getRange()\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\n\t\t/* istanbul ignore next -- @preserve */\n\t\tconst scrollToHighlightedResult: GetCallback<ObservableChangeEvent> = ( eventInfo, name, newValue ) => {\n\t\t\tif ( newValue ) {\n\t\t\t\tconst domConverter = this.editor.editing.view.domConverter;\n\t\t\t\tconst viewRange = this.editor.editing.mapper.toViewRange( newValue.marker.getRange() );\n\n\t\t\t\tscrollViewportToShowTarget( {\n\t\t\t\t\ttarget: domConverter.viewRangeToDom( viewRange ),\n\t\t\t\t\tviewportOffset: 40\n\t\t\t\t} );\n\t\t\t}\n\t\t};\n\n\t\tconst debouncedScrollListener = debounce( scrollToHighlightedResult.bind( this ), 32 );\n\t\t// Debounce scroll as highlight might be changed very frequently, e.g. when there's a replace all command.\n\t\tthis.listenTo<ObservableChangeEvent>( this.state, 'change:highlightedResult', debouncedScrollListener, { priority: 'low' } );\n\n\t\t// It's possible that the editor will get destroyed before debounced call kicks in.\n\t\t// This would result with accessing a view three that is no longer in DOM.\n\t\tthis.listenTo( this.editor, 'destroy', debouncedScrollListener.cancel );\n\t}\n\n\t/**\n\t * Initiate a search.\n\t */\n\tpublic find(\n\t\tcallbackOrText: string | ( ( { item, text }: { item: Item; text: string } ) => Array<ResultType> )\n\t): Collection<ResultType> {\n\t\tconst { editor } = this;\n\t\tconst { model } = editor;\n\n\t\tconst { findCallback, results } = editor.execute( 'find', callbackOrText );\n\n\t\tthis._activeResults = results;\n\n\t\t// @todo: handle this listener, another copy is in findcommand.js file.\n\t\tthis.listenTo( model.document, 'change:data', () => onDocumentChange( this._activeResults!, editor, findCallback ) );\n\n\t\treturn this._activeResults;\n\t}\n\n\t/**\n\t * Stops active results from updating, and clears out the results.\n\t */\n\tpublic stop(): void {\n\t\tif ( !this._activeResults ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.stopListening( this.editor.model.document );\n\n\t\tthis.state!.clear( this.editor.model );\n\n\t\tthis._activeResults = null;\n\t}\n\n\t/**\n\t * Sets up the commands.\n\t */\n\tprivate _defineCommands(): void {\n\t\tthis.editor.commands.add( 'find', new FindCommand( this.editor, this.state! ) );\n\t\tthis.editor.commands.add( 'findNext', new FindNextCommand( this.editor, this.state! ) );\n\t\tthis.editor.commands.add( 'findPrevious', new FindPreviousCommand( this.editor, this.state! ) );\n\t\tthis.editor.commands.add( 'replace', new ReplaceCommand( this.editor, this.state! ) );\n\t\tthis.editor.commands.add( 'replaceAll', new ReplaceAllCommand( this.editor, this.state! ) );\n\t}\n\n\t/**\n\t * Sets up the marker downcast converters for search results highlighting.\n\t */\n\tprivate _defineConverters(): void {\n\t\tconst { editor } = this;\n\n\t\t// Setup the marker highlighting conversion.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: 'findResult',\n\t\t\tview: ( { markerName } ) => {\n\t\t\t\tconst [ , id ] = markerName.split( ':' );\n\n\t\t\t\t// Marker removal from the view has a bug: https://github.com/ckeditor/ckeditor5/issues/7499\n\t\t\t\t// A minimal option is to return a new object for each converted marker...\n\t\t\t\treturn {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ 'ck-find-result' ],\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\t// ...however, adding a unique attribute should be future-proof..\n\t\t\t\t\t\t'data-find-result': id\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: 'findResultHighlighted',\n\t\t\tview: ( { markerName } ) => {\n\t\t\t\tconst [ , id ] = markerName.split( ':' );\n\n\t\t\t\t// Marker removal from the view has a bug: https://github.com/ckeditor/ckeditor5/issues/7499\n\t\t\t\t// A minimal option is to return a new object for each converted marker...\n\t\t\t\treturn {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ HIGHLIGHT_CLASS ],\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\t// ...however, adding a unique attribute should be future-proof..\n\t\t\t\t\t\t'data-find-result': id\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module upload/filereader\n */\n\n/* globals window */\n\nimport { ObservableMixin } from '@ckeditor/ckeditor5-utils';\n\ntype DomFileReader = globalThis.FileReader;\n\n/**\n * Wrapper over the native `FileReader`.\n */\nexport default class FileReader extends ObservableMixin() {\n\tpublic total!: number;\n\n\t/**\n\t * Instance of native FileReader.\n\t */\n\tprivate readonly _reader: DomFileReader;\n\n\t/**\n\t * Holds the data of an already loaded file. The file must be first loaded\n\t * by using {@link module:upload/filereader~FileReader#read `read()`}.\n\t */\n\tprivate _data?: string;\n\n\t/**\n\t * Number of bytes loaded.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public loaded: number;\n\n\t/**\n\t * Creates an instance of the FileReader.\n\t */\n\tconstructor() {\n\t\tsuper();\n\n\t\tconst reader = new window.FileReader();\n\n\t\tthis._reader = reader;\n\t\tthis._data = undefined;\n\n\t\tthis.set( 'loaded', 0 );\n\n\t\treader.onprogress = evt => {\n\t\t\tthis.loaded = evt.loaded;\n\t\t};\n\t}\n\n\t/**\n\t * Returns error that occurred during file reading.\n\t */\n\tpublic get error(): DOMException | null {\n\t\treturn this._reader.error;\n\t}\n\n\t/**\n\t * Holds the data of an already loaded file. The file must be first loaded\n\t * by using {@link module:upload/filereader~FileReader#read `read()`}.\n\t */\n\tpublic get data(): string | undefined {\n\t\treturn this._data;\n\t}\n\n\t/**\n\t * Reads the provided file.\n\t *\n\t * @param file Native File object.\n\t * @returns Returns a promise that will be resolved with file's content.\n\t * The promise will be rejected in case of an error or when the reading process is aborted.\n\t */\n\tpublic read( file: File ): Promise<string> {\n\t\tconst reader = this._reader;\n\t\tthis.total = file.size;\n\n\t\treturn new Promise( ( resolve, reject ) => {\n\t\t\treader.onload = () => {\n\t\t\t\tconst result = reader.result as string;\n\n\t\t\t\tthis._data = result;\n\n\t\t\t\tresolve( result );\n\t\t\t};\n\n\t\t\treader.onerror = () => {\n\t\t\t\treject( 'error' );\n\t\t\t};\n\n\t\t\treader.onabort = () => {\n\t\t\t\treject( 'aborted' );\n\t\t\t};\n\n\t\t\tthis._reader.readAsDataURL( file );\n\t\t} );\n\t}\n\n\t/**\n\t * Aborts file reader.\n\t */\n\tpublic abort(): void {\n\t\tthis._reader.abort();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module upload/filerepository\n */\n\nimport {\n\tPlugin,\n\tPendingActions,\n\ttype PendingAction\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tObservableMixin,\n\tlogWarning,\n\tuid,\n\ttype ObservableChangeEvent,\n\ttype CollectionChangeEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport FileReader from './filereader';\n\n/**\n * File repository plugin. A central point for managing file upload.\n *\n * To use it, first you need an upload adapter. Upload adapter's job is to handle communication with the server\n * (sending the file and handling server's response). You can use one of the existing plugins introducing upload adapters\n * (e.g. {@link module:easy-image/cloudservicesuploadadapter~CloudServicesUploadAdapter} or\n * {@link module:adapter-ckfinder/uploadadapter~CKFinderUploadAdapter}) or write your own one – see\n * the {@glink framework/deep-dive/upload-adapter Custom image upload adapter deep-dive} guide.\n *\n * Then, you can use {@link module:upload/filerepository~FileRepository#createLoader `createLoader()`} and the returned\n * {@link module:upload/filerepository~FileLoader} instance to load and upload files.\n */\nexport default class FileRepository extends Plugin {\n\t/**\n\t * Collection of loaders associated with this repository.\n\t */\n\tpublic loaders = new Collection<FileLoader>();\n\n\t/**\n\t * A factory function which should be defined before using `FileRepository`.\n\t *\n\t * It should return a new instance of {@link module:upload/filerepository~UploadAdapter} that will be used to upload files.\n\t * {@link module:upload/filerepository~FileLoader} instance associated with the adapter\n\t * will be passed to that function.\n\t *\n\t * For more information and example see {@link module:upload/filerepository~UploadAdapter}.\n\t */\n\tpublic createUploadAdapter?: ( loader: FileLoader ) => UploadAdapter;\n\n\t/**\n\t * Loaders mappings used to retrieve loaders references.\n\t */\n\tprivate _loadersMap = new Map<File | Promise<File>, FileLoader>();\n\n\t/**\n\t * Reference to a pending action registered in a {@link module:core/pendingactions~PendingActions} plugin\n\t * while upload is in progress. When there is no upload then value is `null`.\n\t */\n\tprivate _pendingAction: PendingAction | null = null;\n\n\t/**\n\t * Number of bytes uploaded.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public uploaded: number;\n\n\t/**\n\t * Number of total bytes to upload.\n\t *\n\t * It might be different than the file size because of headers and additional data.\n\t * It contains `null` if value is not available yet, so it's better to use {@link #uploadedPercent} to monitor\n\t * the progress.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public uploadTotal: number | null;\n\n\t/**\n\t * Upload progress in percents.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public uploadedPercent: number;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FileRepository' {\n\t\treturn 'FileRepository';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ PendingActions ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\t// Keeps upload in a sync with pending actions.\n\t\tthis.loaders.on<CollectionChangeEvent>( 'change', () => this._updatePendingAction() );\n\n\t\tthis.set( 'uploaded', 0 );\n\t\tthis.set( 'uploadTotal', null );\n\n\t\tthis.bind( 'uploadedPercent' ).to( this, 'uploaded', this, 'uploadTotal', ( uploaded, total ) => {\n\t\t\treturn total ? ( uploaded / total * 100 ) : 0;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the loader associated with specified file or promise.\n\t *\n\t * To get loader by id use `fileRepository.loaders.get( id )`.\n\t *\n\t * @param fileOrPromise Native file or promise handle.\n\t */\n\tpublic getLoader( fileOrPromise: File | Promise<File> ): FileLoader | null {\n\t\treturn this._loadersMap.get( fileOrPromise ) || null;\n\t}\n\n\t/**\n\t * Creates a loader instance for the given file.\n\t *\n\t * Requires {@link #createUploadAdapter} factory to be defined.\n\t *\n\t * @param fileOrPromise Native File object or native Promise object which resolves to a File.\n\t */\n\tpublic createLoader( fileOrPromise: File | Promise<File> ): FileLoader | null {\n\t\tif ( !this.createUploadAdapter ) {\n\t\t\t/**\n\t\t\t * You need to enable an upload adapter in order to be able to upload files.\n\t\t\t *\n\t\t\t * This warning shows up when {@link module:upload/filerepository~FileRepository} is being used\n\t\t\t * without {@link module:upload/filerepository~FileRepository#createUploadAdapter defining an upload adapter}.\n\t\t\t *\n\t\t\t * **If you see this warning when using one of the {@glink installation/getting-started/predefined-builds\n\t\t\t * CKEditor 5 Builds}**\n\t\t\t * it means that you did not configure any of the upload adapters available by default in those builds.\n\t\t\t *\n\t\t\t * See the {@glink features/images/image-upload/image-upload comprehensive \"Image upload overview\"} to learn which upload\n\t\t\t * adapters are available in the builds and how to configure them.\n\t\t\t *\n\t\t\t * **If you see this warning when using a custom build** there is a chance that you enabled\n\t\t\t * a feature like {@link module:image/imageupload~ImageUpload},\n\t\t\t * or {@link module:image/imageupload/imageuploadui~ImageUploadUI} but you did not enable any upload adapter.\n\t\t\t * You can choose one of the existing upload adapters listed in the\n\t\t\t * {@glink features/images/image-upload/image-upload \"Image upload overview\"}.\n\t\t\t *\n\t\t\t * You can also implement your {@glink framework/deep-dive/upload-adapter own image upload adapter}.\n\t\t\t *\n\t\t\t * @error filerepository-no-upload-adapter\n\t\t\t */\n\t\t\tlogWarning( 'filerepository-no-upload-adapter' );\n\n\t\t\treturn null;\n\t\t}\n\n\t\tconst loader = new FileLoader( Promise.resolve( fileOrPromise ), this.createUploadAdapter );\n\n\t\tthis.loaders.add( loader );\n\t\tthis._loadersMap.set( fileOrPromise, loader );\n\n\t\t// Store also file => loader mapping so loader can be retrieved by file instance returned upon Promise resolution.\n\t\tif ( fileOrPromise instanceof Promise ) {\n\t\t\tloader.file\n\t\t\t\t.then( file => {\n\t\t\t\t\tthis._loadersMap.set( file!, loader );\n\t\t\t\t} )\n\t\t\t\t// Every then() must have a catch().\n\t\t\t\t// File loader state (and rejections) are handled in read() and upload().\n\t\t\t\t// Also, see the \"does not swallow the file promise rejection\" test.\n\t\t\t\t.catch( () => {} );\n\t\t}\n\n\t\tloader.on<ObservableChangeEvent>( 'change:uploaded', () => {\n\t\t\tlet aggregatedUploaded = 0;\n\n\t\t\tfor ( const loader of this.loaders ) {\n\t\t\t\taggregatedUploaded += loader.uploaded;\n\t\t\t}\n\n\t\t\tthis.uploaded = aggregatedUploaded;\n\t\t} );\n\n\t\tloader.on<ObservableChangeEvent>( 'change:uploadTotal', () => {\n\t\t\tlet aggregatedTotal = 0;\n\n\t\t\tfor ( const loader of this.loaders ) {\n\t\t\t\tif ( loader.uploadTotal ) {\n\t\t\t\t\taggregatedTotal += loader.uploadTotal;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tthis.uploadTotal = aggregatedTotal;\n\t\t} );\n\n\t\treturn loader;\n\t}\n\n\t/**\n\t * Destroys the given loader.\n\t *\n\t * @param fileOrPromiseOrLoader File or Promise associated with that loader or loader itself.\n\t */\n\tpublic destroyLoader( fileOrPromiseOrLoader: File | Promise<File> | FileLoader ): void {\n\t\tconst loader = fileOrPromiseOrLoader instanceof FileLoader ? fileOrPromiseOrLoader : this.getLoader( fileOrPromiseOrLoader )!;\n\n\t\tloader._destroy();\n\n\t\tthis.loaders.remove( loader );\n\n\t\tthis._loadersMap.forEach( ( value, key ) => {\n\t\t\tif ( value === loader ) {\n\t\t\t\tthis._loadersMap.delete( key );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Registers or deregisters pending action bound with upload progress.\n\t */\n\tprivate _updatePendingAction(): void {\n\t\tconst pendingActions = this.editor.plugins.get( PendingActions );\n\n\t\tif ( this.loaders.length ) {\n\t\t\tif ( !this._pendingAction ) {\n\t\t\t\tconst t = this.editor.t;\n\t\t\t\tconst getMessage = ( value: number ) => `${ t( 'Upload in progress' ) } ${ parseInt( value as any ) }%.`;\n\n\t\t\t\tthis._pendingAction = pendingActions.add( getMessage( this.uploadedPercent ) );\n\t\t\t\tthis._pendingAction.bind( 'message' ).to( this, 'uploadedPercent', getMessage );\n\t\t\t}\n\t\t} else {\n\t\t\tpendingActions.remove( this._pendingAction! );\n\t\t\tthis._pendingAction = null;\n\t\t}\n\t}\n}\n\n/**\n * File loader class.\n *\n * It is used to control the process of reading the file and uploading it using the specified upload adapter.\n */\nclass FileLoader extends ObservableMixin() {\n\t/**\n\t * Unique id of FileLoader instance.\n\t *\n\t * @readonly\n\t */\n\tpublic readonly id: string;\n\n\t/**\n\t * Additional wrapper over the initial file promise passed to this loader.\n\t */\n\tprivate _filePromiseWrapper: FilePromiseWrapper;\n\n\t/**\n\t * Adapter instance associated with this file loader.\n\t */\n\tprivate _adapter: UploadAdapter;\n\n\t/**\n\t * FileReader used by FileLoader.\n\t */\n\tprivate _reader: FileReader;\n\n\t/**\n\t * Current status of FileLoader. It can be one of the following:\n\t *\n\t * * 'idle',\n\t * * 'reading',\n\t * * 'uploading',\n\t * * 'aborted',\n\t * * 'error'.\n\t *\n\t * When reading status can change in a following way:\n\t *\n\t * `idle` -> `reading` -> `idle`\n\t * `idle` -> `reading -> `aborted`\n\t * `idle` -> `reading -> `error`\n\t *\n\t * When uploading status can change in a following way:\n\t *\n\t * `idle` -> `uploading` -> `idle`\n\t * `idle` -> `uploading` -> `aborted`\n\t * `idle` -> `uploading` -> `error`\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public status: 'idle' | 'reading' | 'uploading' | 'aborted' | 'error';\n\n\t/**\n\t * Number of bytes uploaded.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public uploaded: number;\n\n\t/**\n\t * Number of total bytes to upload.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public uploadTotal: number | null;\n\n\t/**\n\t * Upload progress in percents.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public uploadedPercent: number;\n\n\t/**\n\t * Response of the upload.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public uploadResponse?: UploadResponse | null;\n\n\t/**\n\t * Creates a new instance of `FileLoader`.\n\t *\n\t * @param filePromise A promise which resolves to a file instance.\n\t * @param uploadAdapterCreator The function which returns {@link module:upload/filerepository~UploadAdapter} instance.\n\t */\n\tconstructor( filePromise: Promise<File>, uploadAdapterCreator: ( loader: FileLoader ) => UploadAdapter ) {\n\t\tsuper();\n\n\t\tthis.id = uid();\n\t\tthis._filePromiseWrapper = this._createFilePromiseWrapper( filePromise );\n\t\tthis._adapter = uploadAdapterCreator( this );\n\t\tthis._reader = new FileReader();\n\n\t\tthis.set( 'status', 'idle' );\n\t\tthis.set( 'uploaded', 0 );\n\t\tthis.set( 'uploadTotal', null );\n\n\t\tthis.bind( 'uploadedPercent' ).to( this, 'uploaded', this, 'uploadTotal', ( uploaded, total ) => {\n\t\t\treturn total ? ( uploaded / total * 100 ) : 0;\n\t\t} );\n\n\t\tthis.set( 'uploadResponse', null );\n\t}\n\n\t/**\n\t * A `Promise` which resolves to a `File` instance associated with this file loader.\n\t */\n\tpublic get file(): Promise<File | null> {\n\t\tif ( !this._filePromiseWrapper ) {\n\t\t\t// Loader was destroyed, return promise which resolves to null.\n\t\t\treturn Promise.resolve( null );\n\t\t} else {\n\t\t\t// The `this._filePromiseWrapper.promise` is chained and not simply returned to handle a case when:\n\t\t\t//\n\t\t\t//\t\t* The `loader.file.then( ... )` is called by external code (returned promise is pending).\n\t\t\t//\t\t* Then `loader._destroy()` is called (call is synchronous) which destroys the `loader`.\n\t\t\t//\t\t* Promise returned by the first `loader.file.then( ... )` call is resolved.\n\t\t\t//\n\t\t\t// Returning `this._filePromiseWrapper.promise` will still resolve to a `File` instance so there\n\t\t\t// is an additional check needed in the chain to see if `loader` was destroyed in the meantime.\n\t\t\treturn this._filePromiseWrapper.promise.then( file => this._filePromiseWrapper ? file : null );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the file data. To read its data, you need for first load the file\n\t * by using the {@link module:upload/filerepository~FileLoader#read `read()`} method.\n\t */\n\tpublic get data(): string | undefined {\n\t\treturn this._reader.data;\n\t}\n\n\t/**\n\t * Reads file using {@link module:upload/filereader~FileReader}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `filerepository-read-wrong-status` when status\n\t * is different than `idle`.\n\t *\n\t * Example usage:\n\t *\n\t * ```ts\n\t * fileLoader.read()\n\t * \t.then( data => { ... } )\n\t * \t.catch( err => {\n\t * \t\tif ( err === 'aborted' ) {\n\t * \t\t\tconsole.log( 'Reading aborted.' );\n\t * \t\t} else {\n\t * \t\t\tconsole.log( 'Reading error.', err );\n\t * \t\t}\n\t * \t} );\n\t * ```\n\t *\n\t * @returns Returns promise that will be resolved with read data. Promise will be rejected if error\n\t * occurs or if read process is aborted.\n\t */\n\tpublic read(): Promise<string> {\n\t\tif ( this.status != 'idle' ) {\n\t\t\t/**\n\t\t\t * You cannot call read if the status is different than idle.\n\t\t\t *\n\t\t\t * @error filerepository-read-wrong-status\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'filerepository-read-wrong-status', this );\n\t\t}\n\n\t\tthis.status = 'reading';\n\n\t\treturn this.file\n\t\t\t.then( file => this._reader.read( file! ) )\n\t\t\t.then( data => {\n\t\t\t\t// Edge case: reader was aborted after file was read - double check for proper status.\n\t\t\t\t// It can happen when image was deleted during its upload.\n\t\t\t\tif ( this.status !== 'reading' ) {\n\t\t\t\t\tthrow this.status;\n\t\t\t\t}\n\n\t\t\t\tthis.status = 'idle';\n\n\t\t\t\treturn data;\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\tif ( err === 'aborted' ) {\n\t\t\t\t\tthis.status = 'aborted';\n\t\t\t\t\tthrow 'aborted';\n\t\t\t\t}\n\n\t\t\t\tthis.status = 'error';\n\t\t\t\tthrow this._reader.error ? this._reader.error : err;\n\t\t\t} );\n\t}\n\n\t/**\n\t * Reads file using the provided {@link module:upload/filerepository~UploadAdapter}.\n\t *\n\t * Throws {@link module:utils/ckeditorerror~CKEditorError CKEditorError} `filerepository-upload-wrong-status` when status\n\t * is different than `idle`.\n\t * Example usage:\n\t *\n\t * ```ts\n\t * fileLoader.upload()\n\t * \t.then( data => { ... } )\n\t * \t.catch( e => {\n\t * \t\tif ( e === 'aborted' ) {\n\t * \t\t\tconsole.log( 'Uploading aborted.' );\n\t * \t\t} else {\n\t * \t\t\tconsole.log( 'Uploading error.', e );\n\t * \t\t}\n\t * \t} );\n\t * ```\n\t *\n\t * @returns Returns promise that will be resolved with response data. Promise will be rejected if error\n\t * occurs or if read process is aborted.\n\t */\n\tpublic upload(): Promise<UploadResponse> {\n\t\tif ( this.status != 'idle' ) {\n\t\t\t/**\n\t\t\t * You cannot call upload if the status is different than idle.\n\t\t\t *\n\t\t\t * @error filerepository-upload-wrong-status\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'filerepository-upload-wrong-status', this );\n\t\t}\n\n\t\tthis.status = 'uploading';\n\n\t\treturn this.file\n\t\t\t.then( () => this._adapter.upload() )\n\t\t\t.then( data => {\n\t\t\t\tthis.uploadResponse = data;\n\t\t\t\tthis.status = 'idle';\n\n\t\t\t\treturn data;\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\tif ( this.status === 'aborted' ) {\n\t\t\t\t\tthrow 'aborted';\n\t\t\t\t}\n\n\t\t\t\tthis.status = 'error';\n\t\t\t\tthrow err;\n\t\t\t} );\n\t}\n\n\t/**\n\t * Aborts loading process.\n\t */\n\tpublic abort(): void {\n\t\tconst status = this.status;\n\t\tthis.status = 'aborted';\n\n\t\tif ( !this._filePromiseWrapper.isFulfilled ) {\n\t\t\t// Edge case: file loader is aborted before read() is called\n\t\t\t// so it might happen that no one handled the rejection of this promise.\n\t\t\t// See https://github.com/ckeditor/ckeditor5-upload/pull/100\n\t\t\tthis._filePromiseWrapper.promise.catch( () => {} );\n\n\t\t\tthis._filePromiseWrapper.rejecter( 'aborted' );\n\t\t} else if ( status == 'reading' ) {\n\t\t\tthis._reader.abort();\n\t\t} else if ( status == 'uploading' && this._adapter.abort ) {\n\t\t\tthis._adapter.abort();\n\t\t}\n\n\t\tthis._destroy();\n\t}\n\n\t/**\n\t * Performs cleanup.\n\t *\n\t * @internal\n\t */\n\tpublic _destroy(): void {\n\t\tthis._filePromiseWrapper = undefined as any;\n\t\tthis._reader = undefined as any;\n\t\tthis._adapter = undefined as any;\n\t\tthis.uploadResponse = undefined;\n\t}\n\n\t/**\n\t * Wraps a given file promise into another promise giving additional\n\t * control (resolving, rejecting, checking if fulfilled) over it.\n\t *\n\t * @param filePromise The initial file promise to be wrapped.\n\t */\n\tprivate _createFilePromiseWrapper( filePromise: Promise<File> ): FilePromiseWrapper {\n\t\tconst wrapper: Partial<FilePromiseWrapper> = {};\n\n\t\twrapper.promise = new Promise<File>( ( resolve, reject ) => {\n\t\t\twrapper.rejecter = reject;\n\t\t\twrapper.isFulfilled = false;\n\n\t\t\tfilePromise\n\t\t\t\t.then( file => {\n\t\t\t\t\twrapper.isFulfilled = true;\n\t\t\t\t\tresolve( file );\n\t\t\t\t} )\n\t\t\t\t.catch( err => {\n\t\t\t\t\twrapper.isFulfilled = true;\n\t\t\t\t\treject( err );\n\t\t\t\t} );\n\t\t} );\n\n\t\treturn wrapper as FilePromiseWrapper;\n\t}\n}\n\nexport type { FileLoader };\n\n/**\n * Upload adapter interface used by the {@link module:upload/filerepository~FileRepository file repository}\n * to handle file upload. An upload adapter is a bridge between the editor and server that handles file uploads.\n * It should contain a logic necessary to initiate an upload process and monitor its progress.\n *\n * Learn how to develop your own upload adapter for CKEditor 5 in the\n * {@glink framework/deep-dive/upload-adapter \"Custom upload adapter\"} guide.\n *\n * @interface UploadAdapter\n */\nexport interface UploadAdapter {\n\n\t/**\n\t * Executes the upload process.\n\t * This method should return a promise that will resolve when data will be uploaded to server. Promise should be\n\t * resolved with an object containing information about uploaded file:\n\t *\n\t * ```json\n\t * {\n\t * \tdefault: 'http://server/default-size.image.png'\n\t * }\n\t * ```\n\t *\n\t * Additionally, other image sizes can be provided:\n\t *\n\t * ```json\n\t * {\n\t * \tdefault: 'http://server/default-size.image.png',\n\t * \t'160': 'http://server/size-160.image.png',\n\t * \t'500': 'http://server/size-500.image.png',\n\t * \t'1000': 'http://server/size-1000.image.png',\n\t * \t'1052': 'http://server/default-size.image.png'\n\t * }\n\t * ```\n\t *\n\t * You can also pass additional properties from the server. In this case you need to wrap URLs\n\t * in the `urls` object and pass additional properties along the `urls` property.\n\t *\n\t * ```json\n\t * {\n\t * \tmyCustomProperty: 'foo',\n\t * \turls: {\n\t * \t\tdefault: 'http://server/default-size.image.png',\n\t * \t\t'160': 'http://server/size-160.image.png',\n\t * \t\t'500': 'http://server/size-500.image.png',\n\t * \t\t'1000': 'http://server/size-1000.image.png',\n\t * \t\t'1052': 'http://server/default-size.image.png'\n\t * \t}\n\t * }\n\t * ```\n\t *\n\t * NOTE: When returning multiple images, the widest returned one should equal the default one. It is essential to\n\t * correctly set `width` attribute of the image. See this discussion:\n\t * https://github.com/ckeditor/ckeditor5-easy-image/issues/4 for more information.\n\t *\n\t * Take a look at {@link module:upload/filerepository~UploadAdapter example Adapter implementation} and\n\t * {@link module:upload/filerepository~FileRepository#createUploadAdapter createUploadAdapter method}.\n\t *\n\t * @returns Promise that should be resolved when data is uploaded.\n\t */\n\tupload(): Promise<UploadResponse>;\n\n\t/**\n\t * Aborts the upload process.\n\t * After aborting it should reject promise returned from {@link #upload upload()}.\n\t *\n\t * Take a look at {@link module:upload/filerepository~UploadAdapter example Adapter implementation} and\n\t * {@link module:upload/filerepository~FileRepository#createUploadAdapter createUploadAdapter method}.\n\t */\n\tabort?(): void;\n}\n\nexport type UploadResponse = Record<string, unknown>;\n\n/**\n * Object returned by {@link module:upload/filerepository~FileLoader#_createFilePromiseWrapper} method\n * to add more control over the initial file promise passed to {@link module:upload/filerepository~FileLoader}.\n */\ntype FilePromiseWrapper = {\n\n\t/**\n\t * Wrapper promise which can be chained for further processing.\n\t */\n\tpromise: Promise<File>;\n\n\t/**\n\t * Rejects the promise when called.\n\t */\n\trejecter: ( reason?: unknown ) => void;\n\n\t/**\n\t * Whether original promise is already fulfilled.\n\t */\n\tisFulfilled: boolean;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module upload/ui/filedialogbuttonview\n */\n\nimport { ButtonView, View, type ButtonExecuteEvent } from '@ckeditor/ckeditor5-ui';\n\nimport type { Locale } from '@ckeditor/ckeditor5-utils';\n\n/**\n * The file dialog button view.\n *\n * This component provides a button that opens the native file selection dialog.\n * It can be used to implement the UI of a file upload feature.\n *\n * ```ts\n * const view = new FileDialogButtonView( locale );\n *\n * view.set( {\n * \tacceptedType: 'image/*',\n * \tallowMultipleFiles: true\n * } );\n *\n * view.buttonView.set( {\n * \tlabel: t( 'Insert image' ),\n * \ticon: imageIcon,\n * \ttooltip: true\n * } );\n *\n * view.on( 'done', ( evt, files ) => {\n * \tfor ( const file of Array.from( files ) ) {\n * \t\tconsole.log( 'Selected file', file );\n * \t}\n * } );\n * ```\n */\nexport default class FileDialogButtonView extends View {\n\t/**\n\t * The button view of the component.\n\t */\n\tpublic buttonView: ButtonView;\n\n\t/**\n\t * A hidden `<input>` view used to execute file dialog.\n\t */\n\tprivate _fileInputView: FileInputView;\n\n\t/**\n\t * Accepted file types. Can be provided in form of file extensions, media type or one of:\n\t * * `audio/*`,\n\t * * `video/*`,\n\t * * `image/*`.\n\t *\n\t * @observable\n\t */\n\tdeclare public acceptedType: string;\n\n\t/**\n\t * Indicates if multiple files can be selected. Defaults to `true`.\n\t *\n\t * @observable\n\t */\n\tdeclare public allowMultipleFiles: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.buttonView = new ButtonView( locale );\n\n\t\tthis._fileInputView = new FileInputView( locale );\n\t\tthis._fileInputView.bind( 'acceptedType' ).to( this );\n\t\tthis._fileInputView.bind( 'allowMultipleFiles' ).to( this );\n\n\t\tthis._fileInputView.delegate( 'done' ).to( this );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-file-dialog-button'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis.buttonView,\n\t\t\t\tthis._fileInputView\n\t\t\t]\n\t\t} );\n\n\t\tthis.buttonView.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\tthis._fileInputView.open();\n\t\t} );\n\t}\n\n\t/**\n\t * Focuses the {@link #buttonView}.\n\t */\n\tpublic focus(): void {\n\t\tthis.buttonView.focus();\n\t}\n}\n\n/**\n * The hidden file input view class.\n */\nclass FileInputView extends View<HTMLInputElement> {\n\t/**\n\t * Accepted file types. Can be provided in form of file extensions, media type or one of:\n\t * * `audio/*`,\n\t * * `video/*`,\n\t * * `image/*`.\n\t *\n\t * @observable\n\t */\n\tdeclare public acceptedType?: string;\n\n\t/**\n\t * Indicates if multiple files can be selected. Defaults to `false`.\n\t *\n\t * @observable\n\t */\n\tdeclare public allowMultipleFiles: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale?: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.set( 'acceptedType', undefined );\n\t\tthis.set( 'allowMultipleFiles', false );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'input',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-hidden'\n\t\t\t\t],\n\t\t\t\ttype: 'file',\n\t\t\t\ttabindex: '-1',\n\t\t\t\taccept: bind.to( 'acceptedType' ),\n\t\t\t\tmultiple: bind.to( 'allowMultipleFiles' )\n\t\t\t},\n\n\t\t\ton: {\n\t\t\t\t// Removing from code coverage since we cannot programmatically set input element files.\n\t\t\t\tchange: bind.to( /* istanbul ignore next -- @preserve */ () => {\n\t\t\t\t\tif ( this.element && this.element.files && this.element.files.length ) {\n\t\t\t\t\t\tthis.fire<FileInputViewDoneEvent>( 'done', this.element.files );\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.element!.value = '';\n\t\t\t\t} )\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Opens file dialog.\n\t */\n\tpublic open(): void {\n\t\tthis.element!.click();\n\t}\n}\n\n/**\n * Fired when file dialog is closed with file selected.\n *\n * ```ts\n * view.on( 'done', ( evt, files ) => {\n * \tfor ( const file of files ) {\n * \t\tconsole.log( 'Selected file', file );\n * \t}\n * }\n * ```\n */\nexport type FileInputViewDoneEvent = {\n\tname: 'done';\n\targs: [ files: FileList ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals window, document */\n\n/**\n * @module adapter-ckfinder/utils\n */\n\nconst TOKEN_COOKIE_NAME = 'ckCsrfToken';\nconst TOKEN_LENGTH = 40;\nconst tokenCharset = 'abcdefghijklmnopqrstuvwxyz0123456789';\n\n/**\n * Returns the CSRF token value. The value is a hash stored in `document.cookie`\n * under the `ckCsrfToken` key. The CSRF token can be used to secure the communication\n * between the web browser and the CKFinder server.\n */\nexport function getCsrfToken(): string {\n\tlet token = getCookie( TOKEN_COOKIE_NAME );\n\n\tif ( !token || token.length != TOKEN_LENGTH ) {\n\t\ttoken = generateToken( TOKEN_LENGTH );\n\t\tsetCookie( TOKEN_COOKIE_NAME, token );\n\t}\n\n\treturn token;\n}\n\n/**\n * Returns the value of the cookie with a given name or `null` if the cookie is not found.\n */\nexport function getCookie( name: string ): string | null {\n\tname = name.toLowerCase();\n\tconst parts = document.cookie.split( ';' );\n\n\tfor ( const part of parts ) {\n\t\tconst pair = part.split( '=' );\n\t\tconst key = decodeURIComponent( pair[ 0 ].trim().toLowerCase() );\n\n\t\tif ( key === name ) {\n\t\t\treturn decodeURIComponent( pair[ 1 ] );\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Sets the value of the cookie with a given name.\n */\nexport function setCookie( name: string, value: string ): void {\n\tdocument.cookie = encodeURIComponent( name ) + '=' + encodeURIComponent( value ) + ';path=/';\n}\n\n/**\n * Generates the CSRF token with the given length.\n */\nfunction generateToken( length: number ): string {\n\tlet result = '';\n\tconst randValues = new Uint8Array( length );\n\n\twindow.crypto.getRandomValues( randValues );\n\n\tfor ( let j = 0; j < randValues.length; j++ ) {\n\t\tconst character = tokenCharset.charAt( randValues[ j ] % tokenCharset.length );\n\t\tresult += Math.random() > 0.5 ? character.toUpperCase() : character;\n\t}\n\n\treturn result;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* globals XMLHttpRequest, FormData */\n\n/**\n * @module adapter-ckfinder/uploadadapter\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport {\n\tFileRepository,\n\ttype UploadAdapter as UploadAdapterInterface,\n\ttype FileLoader,\n\ttype UploadResponse\n} from 'ckeditor5/src/upload';\nimport type { LocaleTranslate } from 'ckeditor5/src/utils';\n\nimport { getCsrfToken } from './utils';\n\n/**\n * A plugin that enables file uploads in CKEditor 5 using the CKFinder server–side connector.\n *\n * See the {@glink features/file-management/ckfinder \"CKFinder file manager integration\"} guide to learn how to configure\n * and use this feature as well as find out more about the full integration with the file manager\n * provided by the {@link module:ckfinder/ckfinder~CKFinder} plugin.\n *\n * Check out the {@glink features/images/image-upload/image-upload comprehensive \"Image upload overview\"} guide to learn\n * about other ways to upload images into CKEditor 5.\n */\nexport default class CKFinderUploadAdapter extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FileRepository ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'CKFinderUploadAdapter' {\n\t\treturn 'CKFinderUploadAdapter';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst url = this.editor.config.get( 'ckfinder.uploadUrl' )! as string;\n\n\t\tif ( !url ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Register CKFinderAdapter\n\t\tthis.editor.plugins.get( FileRepository ).createUploadAdapter = loader => new UploadAdapter( loader, url, this.editor.t );\n\t}\n}\n\n/**\n * Upload adapter for CKFinder.\n */\nclass UploadAdapter implements UploadAdapterInterface {\n\t/**\n\t * FileLoader instance to use during the upload.\n\t */\n\tpublic loader: FileLoader;\n\n\t/**\n\t * Upload URL.\n\t */\n\tpublic url: string;\n\n\t/**\n\t * Locale translation method.\n\t */\n\tpublic t: LocaleTranslate;\n\n\tprivate xhr?: XMLHttpRequest;\n\n\t/**\n\t * Creates a new adapter instance.\n\t */\n\tconstructor( loader: FileLoader, url: string, t: LocaleTranslate ) {\n\t\tthis.loader = loader;\n\t\tthis.url = url;\n\t\tthis.t = t;\n\t}\n\n\t/**\n\t * Starts the upload process.\n\t *\n\t * @see module:upload/filerepository~UploadAdapter#upload\n\t */\n\tpublic upload() {\n\t\treturn this.loader.file.then( file => {\n\t\t\treturn new Promise<UploadResponse>( ( resolve, reject ) => {\n\t\t\t\tthis._initRequest();\n\t\t\t\tthis._initListeners( resolve, reject, file! );\n\t\t\t\tthis._sendRequest( file! );\n\t\t\t} );\n\t\t} );\n\t}\n\n\t/**\n\t * Aborts the upload process.\n\t *\n\t * @see module:upload/filerepository~UploadAdapter#abort\n\t */\n\tpublic abort() {\n\t\tif ( this.xhr ) {\n\t\t\tthis.xhr.abort();\n\t\t}\n\t}\n\n\t/**\n\t * Initializes the XMLHttpRequest object.\n\t */\n\tprivate _initRequest() {\n\t\tconst xhr = this.xhr = new XMLHttpRequest();\n\n\t\txhr.open( 'POST', this.url, true );\n\t\txhr.responseType = 'json';\n\t}\n\n\t/**\n\t * Initializes XMLHttpRequest listeners.\n\t *\n\t * @param resolve Callback function to be called when the request is successful.\n\t * @param reject Callback function to be called when the request cannot be completed.\n\t * @param file File instance to be uploaded.\n\t */\n\tprivate _initListeners(\n\t\tresolve: ( value: UploadResponse ) => void,\n\t\treject: ( reason?: unknown ) => void,\n\t\tfile: File\n\t) {\n\t\tconst xhr = this.xhr!;\n\t\tconst loader = this.loader;\n\t\tconst t = this.t;\n\t\tconst genericError = t( 'Cannot upload file:' ) + ` ${ file.name }.`;\n\n\t\txhr.addEventListener( 'error', () => reject( genericError ) );\n\t\txhr.addEventListener( 'abort', () => reject() );\n\t\txhr.addEventListener( 'load', () => {\n\t\t\tconst response = xhr.response;\n\n\t\t\tif ( !response || !response.uploaded ) {\n\t\t\t\treturn reject( response && response.error && response.error.message ? response.error.message : genericError );\n\t\t\t}\n\n\t\t\tresolve( {\n\t\t\t\tdefault: response.url\n\t\t\t} );\n\t\t} );\n\n\t\t// Upload progress when it's supported.\n\t\t/* istanbul ignore else -- @preserve */\n\t\tif ( xhr.upload ) {\n\t\t\txhr.upload.addEventListener( 'progress', evt => {\n\t\t\t\tif ( evt.lengthComputable ) {\n\t\t\t\t\tloader.uploadTotal = evt.total;\n\t\t\t\t\tloader.uploaded = evt.loaded;\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Prepares the data and sends the request.\n\t *\n\t * @param file File instance to be uploaded.\n\t */\n\tprivate _sendRequest( file: File ) {\n\t\t// Prepare form data.\n\t\tconst data = new FormData();\n\t\tdata.append( 'upload', file );\n\t\tdata.append( 'ckCsrfToken', getCsrfToken() );\n\n\t\t// Send request.\n\t\tthis.xhr!.send( data );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/utils/changebuffer\n */\n\nimport type {\n\tModel,\n\tBatch,\n\tDocumentChangeEvent,\n\tDocumentSelectionChangeEvent\n} from '@ckeditor/ckeditor5-engine';\n\nimport type { EventInfo } from '@ckeditor/ckeditor5-utils';\n\n/**\n * Change buffer allows to group atomic changes (like characters that have been typed) into\n * {@link module:engine/model/batch~Batch batches}.\n *\n * Batches represent single undo steps, hence changes added to one single batch are undone together.\n *\n * The buffer has a configurable limit of atomic changes that it can accommodate. After the limit was\n * exceeded (see {@link ~ChangeBuffer#input}), a new batch is created in {@link ~ChangeBuffer#batch}.\n *\n * To use the change buffer you need to let it know about the number of changes that were added to the batch:\n *\n * ```ts\n * const buffer = new ChangeBuffer( model, LIMIT );\n *\n * // Later on in your feature:\n * buffer.batch.insert( pos, insertedCharacters );\n * buffer.input( insertedCharacters.length );\n * ```\n */\nexport default class ChangeBuffer {\n\t/**\n\t * The model instance.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * The maximum number of atomic changes which can be contained in one batch.\n\t */\n\tpublic readonly limit: number;\n\n\t/**\n\t * Whether the buffer is locked. A locked buffer cannot be reset unless it gets unlocked.\n\t */\n\tprivate _isLocked: boolean;\n\n\t/**\n\t * The number of atomic changes in the buffer. Once it exceeds the {@link #limit},\n\t * the {@link #batch batch} is set to a new one.\n\t */\n\tprivate _size: number;\n\n\t/**\n\t * The current batch instance.\n\t */\n\tprivate _batch: Batch | null = null;\n\n\t/**\n\t * The callback to document the change event which later needs to be removed.\n\t */\n\tprivate readonly _changeCallback: ( evt: EventInfo, batch: Batch ) => void;\n\n\t/**\n\t * The callback to document selection `change:attribute` and `change:range` events which resets the buffer.\n\t */\n\tprivate readonly _selectionChangeCallback: () => void;\n\n\t/**\n\t * Creates a new instance of the change buffer.\n\t *\n\t * @param limit The maximum number of atomic changes which can be contained in one batch.\n\t */\n\tconstructor( model: Model, limit: number = 20 ) {\n\t\tthis.model = model;\n\t\tthis._size = 0;\n\t\tthis.limit = limit;\n\t\tthis._isLocked = false;\n\n\t\t// The function to be called in order to notify the buffer about batches which appeared in the document.\n\t\t// The callback will check whether it is a new batch and in that case the buffer will be flushed.\n\t\t//\n\t\t// The reason why the buffer needs to be flushed whenever a new batch appears is that the changes added afterwards\n\t\t// should be added to a new batch. For instance, when the user types, then inserts an image, and then types again,\n\t\t// the characters typed after inserting the image should be added to a different batch than the characters typed before.\n\t\tthis._changeCallback = ( evt, batch ) => {\n\t\t\tif ( batch.isLocal && batch.isUndoable && batch !== this._batch ) {\n\t\t\t\tthis._reset( true );\n\t\t\t}\n\t\t};\n\n\t\tthis._selectionChangeCallback = () => {\n\t\t\tthis._reset();\n\t\t};\n\n\t\tthis.model.document.on<DocumentChangeEvent>( 'change', this._changeCallback );\n\n\t\tthis.model.document.selection.on<DocumentSelectionChangeEvent>( 'change:range', this._selectionChangeCallback );\n\t\tthis.model.document.selection.on<DocumentSelectionChangeEvent>( 'change:attribute', this._selectionChangeCallback );\n\t}\n\n\t/**\n\t * The current batch to which a feature should add its operations. Once the {@link #size}\n\t * is reached or exceeds the {@link #limit}, the batch is set to a new instance and the size is reset.\n\t */\n\tpublic get batch(): Batch {\n\t\tif ( !this._batch ) {\n\t\t\tthis._batch = this.model.createBatch( { isTyping: true } );\n\t\t}\n\n\t\treturn this._batch;\n\t}\n\n\t/**\n\t * The number of atomic changes in the buffer. Once it exceeds the {@link #limit},\n\t * the {@link #batch batch} is set to a new one.\n\t */\n\tpublic get size(): number {\n\t\treturn this._size;\n\t}\n\n\t/**\n\t * The input number of changes into the buffer. Once the {@link #size} is\n\t * reached or exceeds the {@link #limit}, the batch is set to a new instance and the size is reset.\n\t *\n\t * @param changeCount The number of atomic changes to input.\n\t */\n\tpublic input( changeCount: number ): void {\n\t\tthis._size += changeCount;\n\n\t\tif ( this._size >= this.limit ) {\n\t\t\tthis._reset( true );\n\t\t}\n\t}\n\n\t/**\n\t * Whether the buffer is locked. A locked buffer cannot be reset unless it gets unlocked.\n\t */\n\tpublic get isLocked(): boolean {\n\t\treturn this._isLocked;\n\t}\n\n\t/**\n\t * Locks the buffer.\n\t */\n\tpublic lock(): void {\n\t\tthis._isLocked = true;\n\t}\n\n\t/**\n\t * Unlocks the buffer.\n\t */\n\tpublic unlock(): void {\n\t\tthis._isLocked = false;\n\t}\n\n\t/**\n\t * Destroys the buffer.\n\t */\n\tpublic destroy(): void {\n\t\tthis.model.document.off( 'change', this._changeCallback );\n\t\tthis.model.document.selection.off( 'change:range', this._selectionChangeCallback );\n\t\tthis.model.document.selection.off( 'change:attribute', this._selectionChangeCallback );\n\t}\n\n\t/**\n\t * Resets the change buffer.\n\t *\n\t * @param ignoreLock Whether internal lock {@link #isLocked} should be ignored.\n\t */\n\tprivate _reset( ignoreLock: boolean = false ): void {\n\t\tif ( !this.isLocked || ignoreLock ) {\n\t\t\tthis._batch = null;\n\t\t\tthis._size = 0;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/inserttextcommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport ChangeBuffer from './utils/changebuffer';\n\nimport type { DocumentSelection, Range, Selection } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The insert text command. Used by the {@link module:typing/input~Input input feature} to handle typing.\n */\nexport default class InsertTextCommand extends Command {\n\t/**\n\t * Typing's change buffer used to group subsequent changes into batches.\n\t */\n\tprivate readonly _buffer: ChangeBuffer;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param undoStepSize The maximum number of atomic changes\n\t * which can be contained in one batch in the command buffer.\n\t */\n\tconstructor( editor: Editor, undoStepSize: number ) {\n\t\tsuper( editor );\n\n\t\tthis._buffer = new ChangeBuffer( editor.model, undoStepSize );\n\t}\n\n\t/**\n\t * The current change buffer.\n\t */\n\tpublic get buffer(): ChangeBuffer {\n\t\treturn this._buffer;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._buffer.destroy();\n\t}\n\n\t/**\n\t * Executes the input command. It replaces the content within the given range with the given text.\n\t * Replacing is a two step process, first the content within the range is removed and then the new text is inserted\n\t * at the beginning of the range (which after the removal is a collapsed range).\n\t *\n\t * @fires execute\n\t * @param options The command options.\n\t */\n\tpublic override execute( options: InsertTextCommandOptions = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst text = options.text || '';\n\t\tconst textInsertions = text.length;\n\n\t\tlet selection: Selection | DocumentSelection = doc.selection;\n\n\t\tif ( options.selection ) {\n\t\t\tselection = options.selection;\n\t\t} else if ( options.range ) {\n\t\t\tselection = model.createSelection( options.range );\n\t\t}\n\n\t\tconst resultRange = options.resultRange;\n\n\t\tmodel.enqueueChange( this._buffer.batch, writer => {\n\t\t\tthis._buffer.lock();\n\n\t\t\tmodel.deleteContent( selection );\n\n\t\t\tif ( text ) {\n\t\t\t\tmodel.insertContent( writer.createText( text, doc.selection.getAttributes() ), selection );\n\t\t\t}\n\n\t\t\tif ( resultRange ) {\n\t\t\t\twriter.setSelection( resultRange );\n\t\t\t} else if ( !selection.is( 'documentSelection' ) ) {\n\t\t\t\twriter.setSelection( selection );\n\t\t\t}\n\n\t\t\tthis._buffer.unlock();\n\n\t\t\tthis._buffer.input( textInsertions );\n\t\t} );\n\t}\n}\n\n/**\n * Interface with parameters for executing InsertTextCommand.\n *\n * Both `range` and `selection` parameters are used for defining selection but should not be used together.\n * If both are defined, only `selection` will be considered.\n */\nexport interface InsertTextCommandOptions {\n\n\t/**\n\t * The text to be inserted.\n\t */\n\ttext?: string;\n\n\t/**\n\t * The selection in which the text is inserted.\n\t * Inserting a text into a selection deletes the current content within selection ranges. If the selection is not specified,\n\t * the current selection in the model will be used instead.\n\t */\n\tselection?: Selection | DocumentSelection;\n\n\t/**\n\t * The range in which the text is inserted. Defaults to the first range in the current selection.\n\t */\n\trange?: Range;\n\n\t/**\n\t * The range where the selection should be placed after the insertion.\n\t * If not specified, the selection will be placed right after the inserted text.\n\t */\n\tresultRange?: Range;\n}\n\nexport interface InsertTextCommandExecuteEvent {\n\tname: 'execute';\n\targs: [\n\t\tdata: [ options: InsertTextCommandOptions ]\n\t];\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/inserttextobserver\n */\n\nimport { env, EventInfo } from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tDomEventData,\n\tObserver,\n\ttype View,\n\ttype ViewDocumentCompositionEndEvent,\n\ttype ViewDocumentInputEvent,\n\ttype ViewDocumentSelection,\n\ttype ViewRange,\n\ttype ViewSelection\n} from '@ckeditor/ckeditor5-engine';\n\nconst TYPING_INPUT_TYPES = [\n\t// For collapsed range:\n\t//\t- This one is a regular typing (all browsers, all systems).\n\t//\t- This one is used by Chrome when typing accented letter – 2nd step when the user selects the accent (Mac).\n\t// For non-collapsed range:\n\t//\t- This one is used by Chrome when typing accented letter – when the selection box first appears (Mac).\n\t//\t- This one is used by Safari when accepting spell check suggestions from the context menu (Mac).\n\t'insertText',\n\n\t// This one is used by Safari when typing accented letter (Mac).\n\t// This one is used by Safari when accepting spell check suggestions from the autocorrection pop-up (Mac).\n\t'insertReplacementText'\n];\n\n/**\n * Text insertion observer introduces the {@link module:engine/view/document~Document#event:insertText} event.\n */\nexport default class InsertTextObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\t// On Android composition events should immediately be applied to the model. Rendering is not disabled.\n\t\t// On non-Android the model is updated only on composition end.\n\t\t// On Android we can't rely on composition start/end to update model.\n\t\tif ( env.isAndroid ) {\n\t\t\tTYPING_INPUT_TYPES.push( 'insertCompositionText' );\n\t\t}\n\n\t\tconst viewDocument = view.document;\n\n\t\tviewDocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { data: text, targetRanges, inputType, domEvent } = data;\n\n\t\t\tif ( !TYPING_INPUT_TYPES.includes( inputType ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst eventInfo = new EventInfo( viewDocument, 'insertText' );\n\n\t\t\tviewDocument.fire( eventInfo, new DomEventData( view, domEvent, {\n\t\t\t\ttext,\n\t\t\t\tselection: view.createSelection( targetRanges )\n\t\t\t} ) );\n\n\t\t\t// Stop the beforeinput event if `delete` event was stopped.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/753\n\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\n\t\t// Note: The priority must be lower than the CompositionObserver handler to call it after the renderer is unblocked.\n\t\tviewDocument.on<ViewDocumentCompositionEndEvent>( 'compositionend', ( evt, { data, domEvent } ) => {\n\t\t\t// On Android composition events are immediately applied to the model.\n\t\t\t// On non-Android the model is updated only on composition end.\n\t\t\t// On Android we can't rely on composition start/end to update model.\n\t\t\tif ( !this.isEnabled || env.isAndroid ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// In case of aborted composition.\n\t\t\tif ( !data ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( `%c[InsertTextObserver]%c Fire insertText event, text: ${ JSON.stringify( data ) }`,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', ''\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t// How do we know where to insert the composed text?\n\t\t\t// The selection observer is blocked and the view is not updated with the composition changes.\n\t\t\t// There were three options:\n\t\t\t//   - Store the selection on `compositionstart` and use it now. This wouldn't work in RTC\n\t\t\t//     where the view would change and the stored selection might get incorrect.\n\t\t\t//     We'd need to fallback to the current view selection anyway.\n\t\t\t//   - Use the current view selection. This is a bit weird and non-intuitive because\n\t\t\t//     this isn't necessarily the selection on which the user started composing.\n\t\t\t//     We cannot even know whether it's still collapsed (there might be some weird\n\t\t\t//     editor feature that changed it in unpredictable ways for us). But it's by far\n\t\t\t//     the simplest solution and should be stable (the selection is definitely correct)\n\t\t\t//     and probably mostly predictable (features usually don't modify the selection\n\t\t\t//     unless called explicitly by the user).\n\t\t\t//   - Try to follow it from the `beforeinput` events. This would be really complex as each\n\t\t\t//     `beforeinput` would come with just the range it's changing and we'd need to calculate that.\n\t\t\t// We decided to go with the 2nd option for its simplicity and stability.\n\t\t\tviewDocument.fire( 'insertText', new DomEventData( view, domEvent, {\n\t\t\t\ttext: data,\n\t\t\t\tselection: viewDocument.selection\n\t\t\t} ) );\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic stopObserving(): void {}\n}\n\n/**\n * Event fired when the user types text, for instance presses <kbd>A</kbd> or <kbd>?</kbd> in the\n * editing view document.\n *\n * **Note**: This event will **not** fire for keystrokes such as <kbd>Delete</kbd> or <kbd>Enter</kbd>.\n * They have dedicated events, see {@link module:engine/view/document~Document#event:delete} and\n * {@link module:engine/view/document~Document#event:enter} to learn more.\n *\n * **Note**: This event is fired by the {@link module:typing/inserttextobserver~InsertTextObserver input feature}.\n *\n * @eventName module:engine/view/document~Document#insertText\n * @param data The event data.\n */\nexport type ViewDocumentInsertTextEvent = {\n\tname: 'insertText';\n\targs: [ data: InsertTextEventData ];\n};\n\nexport interface InsertTextEventData extends DomEventData {\n\n\t/**\n\t *  The text to be inserted.\n\t */\n\ttext: string;\n\n\t/**\n\t * The selection into which the text should be inserted.\n\t * If not specified, the insertion should occur at the current view selection.\n\t */\n\tselection: ViewSelection | ViewDocumentSelection;\n\n\t/**\n\t * The range that view selection should be set to after insertion.\n\t */\n\tresultRange?: ViewRange;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/input\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { env } from '@ckeditor/ckeditor5-utils';\n\nimport InsertTextCommand from './inserttextcommand';\nimport InsertTextObserver, { type ViewDocumentInsertTextEvent } from './inserttextobserver';\n\nimport type { Model } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Handles text input coming from the keyboard or other input methods.\n */\nexport default class Input extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Input' {\n\t\treturn 'Input';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst modelSelection = model.document.selection;\n\n\t\tview.addObserver( InsertTextObserver );\n\n\t\t// TODO The above default configuration value should be defined using editor.config.define() once it's fixed.\n\t\tconst insertTextCommand = new InsertTextCommand( editor, editor.config.get( 'typing.undoStep' ) || 20 );\n\n\t\t// Register `insertText` command and add `input` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'insertText', insertTextCommand );\n\t\teditor.commands.add( 'input', insertTextCommand );\n\n\t\tthis.listenTo<ViewDocumentInsertTextEvent>( view.document, 'insertText', ( evt, data ) => {\n\t\t\t// Rendering is disabled while composing so prevent events that will be rendered by the engine\n\t\t\t// and should not be applied by the browser.\n\t\t\tif ( !view.document.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\tconst { text, selection: viewSelection, resultRange: viewResultRange } = data;\n\n\t\t\t// If view selection was specified, translate it to model selection.\n\t\t\tconst modelRanges = Array.from( viewSelection.getRanges() ).map( viewRange => {\n\t\t\t\treturn editor.editing.mapper.toModelRange( viewRange );\n\t\t\t} );\n\n\t\t\tlet insertText = text;\n\n\t\t\t// Typing in English on Android is firing composition events for the whole typed word.\n\t\t\t// We need to check the target range text to only apply the difference.\n\t\t\tif ( env.isAndroid ) {\n\t\t\t\tconst selectedText = Array.from( modelRanges[ 0 ].getItems() ).reduce( ( rangeText, node ) => {\n\t\t\t\t\treturn rangeText + ( node.is( '$textProxy' ) ? node.data : '' );\n\t\t\t\t}, '' );\n\n\t\t\t\tif ( selectedText ) {\n\t\t\t\t\tif ( selectedText.length <= insertText.length ) {\n\t\t\t\t\t\tif ( insertText.startsWith( selectedText ) ) {\n\t\t\t\t\t\t\tinsertText = insertText.substring( selectedText.length );\n\t\t\t\t\t\t\t( modelRanges[ 0 ] as any ).start = modelRanges[ 0 ].start.getShiftedBy( selectedText.length );\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif ( selectedText.startsWith( insertText ) ) {\n\t\t\t\t\t\t\t// TODO this should be mapped as delete?\n\t\t\t\t\t\t\t( modelRanges[ 0 ] as any ).start = modelRanges[ 0 ].start.getShiftedBy( insertText.length );\n\t\t\t\t\t\t\tinsertText = '';\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst insertTextCommandData: Parameters<InsertTextCommand[ 'execute' ]>[ 0 ] = {\n\t\t\t\ttext: insertText,\n\t\t\t\tselection: model.createSelection( modelRanges )\n\t\t\t};\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[Input]%c Execute insertText:',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\tinsertText,\n\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ modelRanges[ 0 ].start.path }]-[${ modelRanges[ 0 ].end.path }]`\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\tif ( viewResultRange ) {\n\t\t\t\tinsertTextCommandData.resultRange = editor.editing.mapper.toModelRange( viewResultRange );\n\t\t\t}\n\n\t\t\teditor.execute( 'insertText', insertTextCommandData );\n\t\t} );\n\n\t\tif ( env.isAndroid ) {\n\t\t\t// On Android with English keyboard, the composition starts just by putting caret\n\t\t\t// at the word end or by selecting a table column. This is not a real composition started.\n\t\t\t// Trigger delete content on first composition key pressed.\n\t\t\tthis.listenTo( view.document, 'keydown', ( evt, data ) => {\n\t\t\t\tif ( modelSelection.isCollapsed || data.keyCode != 229 || !view.document.isComposing ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconst firstPositionPath = modelSelection.getFirstPosition()!.path;\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconst lastPositionPath = modelSelection.getLastPosition()!.path;\n\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[Input]%c KeyDown 229 -> model.deleteContent()',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ firstPositionPath }]-[${ lastPositionPath }]`\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tdeleteSelectionContent( model, insertTextCommand );\n\t\t\t} );\n\t\t} else {\n\t\t\t// Note: The priority must precede the CompositionObserver handler to call it before\n\t\t\t// the renderer is blocked, because we want to render this change.\n\t\t\tthis.listenTo( view.document, 'compositionstart', () => {\n\t\t\t\tif ( modelSelection.isCollapsed ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconst firstPositionPath = modelSelection.getFirstPosition()!.path;\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconst lastPositionPath = modelSelection.getLastPosition()!.path;\n\n\t\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[Input]%c Composition start -> model.deleteContent()',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ firstPositionPath }]-[${ lastPositionPath }]`\n\t\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\t\tdeleteSelectionContent( model, insertTextCommand );\n\t\t\t} );\n\t\t}\n\t}\n}\n\nfunction deleteSelectionContent( model: Model, insertTextCommand: InsertTextCommand ): void {\n\t// By relying on the state of the input command we allow disabling the entire input easily\n\t// by just disabling the input command. We could’ve used here the delete command but that\n\t// would mean requiring the delete feature which would block loading one without the other.\n\t// We could also check the editor.isReadOnly property, but that wouldn't allow to block\n\t// the input without blocking other features.\n\tif ( !insertTextCommand.isEnabled ) {\n\t\treturn;\n\t}\n\n\tconst buffer = insertTextCommand.buffer;\n\n\tbuffer.lock();\n\n\tmodel.enqueueChange( buffer.batch, () => {\n\t\tmodel.deleteContent( model.document.selection );\n\t} );\n\n\tbuffer.unlock();\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/deletecommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\nimport { count } from '@ckeditor/ckeditor5-utils';\nimport type { DocumentSelection, Element, Selection, Writer } from '@ckeditor/ckeditor5-engine';\n\nimport ChangeBuffer from './utils/changebuffer';\n\n/**\n * The delete command. Used by the {@link module:typing/delete~Delete delete feature} to handle the <kbd>Delete</kbd> and\n * <kbd>Backspace</kbd> keys.\n */\nexport default class DeleteCommand extends Command {\n\t/**\n\t * The directionality of the delete describing in what direction it should\n\t * consume the content when the selection is collapsed.\n\t */\n\tpublic readonly direction: 'forward' | 'backward';\n\n\t/**\n\t * Delete's change buffer used to group subsequent changes into batches.\n\t */\n\tprivate readonly _buffer: ChangeBuffer;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param direction The directionality of the delete describing in what direction it\n\t * should consume the content when the selection is collapsed.\n\t */\n\tconstructor( editor: Editor, direction: 'forward' | 'backward' ) {\n\t\tsuper( editor );\n\n\t\tthis.direction = direction;\n\t\tthis._buffer = new ChangeBuffer( editor.model, editor.config.get( 'typing.undoStep' ) );\n\t}\n\n\t/**\n\t * The current change buffer.\n\t */\n\tpublic get buffer(): ChangeBuffer {\n\t\treturn this._buffer;\n\t}\n\n\t/**\n\t * Executes the delete command. Depending on whether the selection is collapsed or not, deletes its content\n\t * or a piece of content in the {@link #direction defined direction}.\n\t *\n\t * @fires execute\n\t * @param options The command options.\n\t * @param options.unit See {@link module:engine/model/utils/modifyselection~modifySelection}'s options.\n\t * @param options.sequence A number describing which subsequent delete event it is without the key being released.\n\t * See the {@link module:engine/view/document~Document#event:delete} event data.\n\t * @param options.selection Selection to remove. If not set, current model selection will be used.\n\t */\n\tpublic override execute( options: {\n\t\tunit?: 'character' | 'codePoint' | 'word';\n\t\tsequence?: number;\n\t\tselection?: Selection | DocumentSelection;\n\t} = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tmodel.enqueueChange( this._buffer.batch, writer => {\n\t\t\tthis._buffer.lock();\n\n\t\t\tconst selection = writer.createSelection( options.selection || doc.selection );\n\t\t\tconst sequence = options.sequence || 1;\n\n\t\t\t// Do not replace the whole selected content if selection was collapsed.\n\t\t\t// This prevents such situation:\n\t\t\t//\n\t\t\t// <h1></h1><p>[]</p>\t-->  <h1>[</h1><p>]</p> \t\t-->  <p></p>\n\t\t\t// starting content\t\t-->   after `modifySelection`\t-->  after `deleteContent`.\n\t\t\tconst doNotResetEntireContent = selection.isCollapsed;\n\n\t\t\t// Try to extend the selection in the specified direction.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tmodel.modifySelection( selection, {\n\t\t\t\t\tdirection: this.direction,\n\t\t\t\t\tunit: options.unit,\n\t\t\t\t\ttreatEmojiAsSingleUnit: true\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\t// Check if deleting in an empty editor. See #61.\n\t\t\tif ( this._shouldEntireContentBeReplacedWithParagraph( sequence ) ) {\n\t\t\t\tthis._replaceEntireContentWithParagraph( writer );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Check if deleting in the first empty block.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/8137.\n\t\t\tif ( this._shouldReplaceFirstBlockWithParagraph( selection, sequence ) ) {\n\t\t\t\tthis.editor.execute( 'paragraph', { selection } );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If selection is still collapsed, then there's nothing to delete.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet changeCount = 0;\n\n\t\t\tselection.getFirstRange()!.getMinimalFlatRanges().forEach( range => {\n\t\t\t\tchangeCount += count(\n\t\t\t\t\trange.getWalker( { singleCharacters: true, ignoreElementEnd: true, shallow: true } )\n\t\t\t\t);\n\t\t\t} );\n\n\t\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t\t// @if CK_DEBUG_TYPING // \tconsole.log( '%c[DeleteCommand]%c Delete content',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green;', '',\n\t\t\t// @if CK_DEBUG_TYPING // \t\t`[${ selection.getFirstPosition()!.path }]-[${ selection.getLastPosition()!.path }]`, options\n\t\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t\t// @if CK_DEBUG_TYPING // }\n\n\t\t\tmodel.deleteContent( selection, {\n\t\t\t\tdoNotResetEntireContent,\n\t\t\t\tdirection: this.direction\n\t\t\t} );\n\n\t\t\tthis._buffer.input( changeCount );\n\n\t\t\twriter.setSelection( selection );\n\n\t\t\tthis._buffer.unlock();\n\t\t} );\n\t}\n\n\t/**\n\t * If the user keeps <kbd>Backspace</kbd> or <kbd>Delete</kbd> key pressed, the content of the current\n\t * editable will be cleared. However, this will not yet lead to resetting the remaining block to a paragraph\n\t * (which happens e.g. when the user does <kbd>Ctrl</kbd> + <kbd>A</kbd>, <kbd>Backspace</kbd>).\n\t *\n\t * But, if the user pressed the key in an empty editable for the first time,\n\t * we want to replace the entire content with a paragraph if:\n\t *\n\t * * the current limit element is empty,\n\t * * the paragraph is allowed in the limit element,\n\t * * the limit doesn't already have a paragraph inside.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5-typing/issues/61.\n\t *\n\t * @param sequence A number describing which subsequent delete event it is without the key being released.\n\t */\n\tprivate _shouldEntireContentBeReplacedWithParagraph( sequence: number ): boolean {\n\t\t// Does nothing if user pressed and held the \"Backspace\" or \"Delete\" key.\n\t\tif ( sequence > 1 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst selection = doc.selection;\n\t\tconst limitElement = model.schema.getLimitElement( selection );\n\n\t\t// If a collapsed selection contains the whole content it means that the content is empty\n\t\t// (from the user perspective).\n\t\tconst limitElementIsEmpty = selection.isCollapsed && selection.containsEntireContent( limitElement );\n\n\t\tif ( !limitElementIsEmpty ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !model.schema.checkChild( limitElement, 'paragraph' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst limitElementFirstChild = limitElement.getChild( 0 );\n\n\t\t// Does nothing if the limit element already contains only a paragraph.\n\t\t// We ignore the case when paragraph might have some inline elements (<p><inlineWidget>[]</inlineWidget></p>)\n\t\t// because we don't support such cases yet and it's unclear whether inlineWidget shouldn't be a limit itself.\n\t\tif ( limitElementFirstChild && limitElementFirstChild.is( 'element', 'paragraph' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * The entire content is replaced with the paragraph. Selection is moved inside the paragraph.\n\t *\n\t * @param writer The model writer.\n\t */\n\tprivate _replaceEntireContentWithParagraph( writer: Writer ): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst selection = doc.selection;\n\t\tconst limitElement = model.schema.getLimitElement( selection );\n\t\tconst paragraph = writer.createElement( 'paragraph' );\n\n\t\twriter.remove( writer.createRangeIn( limitElement ) );\n\t\twriter.insert( paragraph, limitElement );\n\n\t\twriter.setSelection( paragraph, 0 );\n\t}\n\n\t/**\n\t * Checks if the selection is inside an empty element that is the first child of the limit element\n\t * and should be replaced with a paragraph.\n\t *\n\t * @param selection The selection.\n\t * @param sequence A number describing which subsequent delete event it is without the key being released.\n\t */\n\tprivate _shouldReplaceFirstBlockWithParagraph( selection: Selection, sequence: number ): boolean {\n\t\tconst model = this.editor.model;\n\n\t\t// Does nothing if user pressed and held the \"Backspace\" key or it was a \"Delete\" button.\n\t\tif ( sequence > 1 || this.direction != 'backward' ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst position = selection.getFirstPosition()!;\n\t\tconst limitElement = model.schema.getLimitElement( position );\n\t\tconst limitElementFirstChild = limitElement.getChild( 0 ) as Element;\n\n\t\t// Only elements that are direct children of the limit element can be replaced.\n\t\t// Unwrapping from a block quote should be handled in a dedicated feature.\n\t\tif ( position.parent != limitElementFirstChild ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// A block should be replaced only if it was empty.\n\t\tif ( !selection.containsEntireContent( limitElementFirstChild ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Replace with a paragraph only if it's allowed there.\n\t\tif ( !model.schema.checkChild( limitElement, 'paragraph' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Does nothing if the limit element already contains only a paragraph.\n\t\tif ( limitElementFirstChild.name == 'paragraph' ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/deleteobserver\n */\n\nimport {\n\tenv,\n\tkeyCodes,\n\tisInsideCombinedSymbol,\n\tisInsideEmojiSequence,\n\tisInsideSurrogatePair\n} from '@ckeditor/ckeditor5-utils';\nimport {\n\tBubblingEventInfo,\n\tDomEventData,\n\tObserver,\n\ttype BubblingEvent,\n\ttype ViewDocumentInputEvent,\n\ttype ViewDocumentKeyDownEvent,\n\ttype ViewDocumentKeyUpEvent,\n\ttype ViewDocumentSelection,\n\ttype ViewSelection,\n\ttype ViewRange,\n\ttype View\n} from '@ckeditor/ckeditor5-engine';\n\nconst DELETE_CHARACTER = 'character';\nconst DELETE_WORD = 'word';\nconst DELETE_CODE_POINT = 'codePoint';\nconst DELETE_SELECTION = 'selection';\nconst DELETE_BACKWARD = 'backward';\nconst DELETE_FORWARD = 'forward';\n\ntype DeleteEventSpec = {\n\tunit: 'selection' | 'codePoint' | 'character' | 'word';\n\tdirection: 'backward' | 'forward';\n};\n\nconst DELETE_EVENT_TYPES: Record<string, DeleteEventSpec> = {\n\t// --------------------------------------- Backward delete types -----------------------------------------------------\n\n\t// This happens in Safari on Mac when some content is selected and Ctrl + K is pressed.\n\tdeleteContent: {\n\t\tunit: DELETE_SELECTION,\n\n\t\t// According to the Input Events Level 2 spec, this delete type has no direction\n\t\t// but to keep things simple, let's default to backward.\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// Chrome and Safari on Mac: Backspace or Ctrl + H\n\tdeleteContentBackward: {\n\t\t// This kind of deletions must be done on the code point-level instead of target range provided by the DOM beforeinput event.\n\t\t// Take for instance \"👨‍👩‍👧‍👧\", it equals:\n\t\t//\n\t\t//\t* [ \"👨\", \"ZERO WIDTH JOINER\", \"👩\", \"ZERO WIDTH JOINER\", \"👧\", \"ZERO WIDTH JOINER\", \"👧\" ]\n\t\t//\t* or simply \"\\u{1F468}\\u200D\\u{1F469}\\u200D\\u{1F467}\\u200D\\u{1F467}\"\n\t\t//\n\t\t// The range provided by the browser would cause the entire multi-byte grapheme to disappear while the user\n\t\t// intention when deleting backwards (\"👨‍👩‍👧‍👧[]\", then backspace) is gradual \"decomposition\" (first to \"👨‍👩‍👧‍[]\",\n\t\t// then to \"👨‍👩‍[]\", etc.).\n\t\t//\n\t\t//\t* \"👨‍👩‍👧‍👧[]\" + backward delete (by code point)  -> results in \"👨‍👩‍👧[]\", removed the last \"👧\" 👍\n\t\t//\t* \"👨‍👩‍👧‍👧[]\" + backward delete (by character)  -> results in \"[]\", removed the whole grapheme 👎\n\t\t//\n\t\t// Deleting by code-point is simply a better UX. See \"deleteContentForward\" to learn more.\n\t\tunit: DELETE_CODE_POINT,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// On Mac: Option + Backspace.\n\t// On iOS: Hold the backspace for a while and the whole words will start to disappear.\n\tdeleteWordBackward: {\n\t\tunit: DELETE_WORD,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// Safari on Mac: Cmd + Backspace\n\tdeleteHardLineBackward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\t// Chrome on Mac: Cmd + Backspace.\n\tdeleteSoftLineBackward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_BACKWARD\n\t},\n\n\t// --------------------------------------- Forward delete types -----------------------------------------------------\n\n\t// Chrome on Mac: Fn + Backspace or Ctrl + D\n\t// Safari on Mac: Ctrl + K or Ctrl + D\n\tdeleteContentForward: {\n\t\t// Unlike backward delete, this delete must be performed by character instead of by code point, which\n\t\t// provides the best UX for working with accented letters.\n\t\t// Take, for example \"b̂\" (\"\\u0062\\u0302\", or [ \"LATIN SMALL LETTER B\", \"COMBINING CIRCUMFLEX ACCENT\" ]):\n\t\t//\n\t\t//\t* \"b̂[]\" + backward delete (by code point)  -> results in \"b[]\", removed the combining mark 👍\n\t\t//\t* \"[]b̂\" + forward delete (by code point)   -> results in \"[]^\", a bare combining mark does that not make sense when alone 👎\n\t\t//\t* \"[]b̂\" + forward delete (by character)    -> results in \"[]\", removed both \"b\" and the combining mark 👍\n\t\t//\n\t\t// See: \"deleteContentBackward\" to learn more.\n\t\tunit: DELETE_CHARACTER,\n\t\tdirection: DELETE_FORWARD\n\t},\n\t// On Mac: Fn + Option + Backspace.\n\tdeleteWordForward: {\n\t\tunit: DELETE_WORD,\n\t\tdirection: DELETE_FORWARD\n\t},\n\t// Chrome on Mac: Ctrl + K (you have to disable the Link plugin first, though, because it uses the same keystroke)\n\t// This is weird that it does not work in Safari on Mac despite being listed in the official shortcuts listing\n\t// on Apple's webpage.\n\tdeleteHardLineForward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_FORWARD\n\t},\n\t// At this moment there is no known way to trigger this event type but let's keep it for the symmetry with\n\t// deleteSoftLineBackward.\n\tdeleteSoftLineForward: {\n\t\tunit: DELETE_SELECTION,\n\t\tdirection: DELETE_FORWARD\n\t}\n};\n\n/**\n * Delete observer introduces the {@link module:engine/view/document~Document#event:delete} event.\n */\nexport default class DeleteObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst document = view.document;\n\n\t\t// It matters how many subsequent deletions were made, e.g. when the backspace key was pressed and held\n\t\t// by the user for some time. For instance, if such scenario ocurred and the heading the selection was\n\t\t// anchored to was the only content of the editor, it will not be converted into a paragraph (the user\n\t\t// wanted to clean it up, not remove it, it's about UX). Check out the DeleteCommand implementation to learn more.\n\t\t//\n\t\t// Fun fact: Safari on Mac won't fire beforeinput for backspace in an empty heading (only content).\n\t\tlet sequence = 0;\n\n\t\tdocument.on( 'keydown', () => {\n\t\t\tsequence++;\n\t\t} );\n\n\t\tdocument.on( 'keyup', () => {\n\t\t\tsequence = 0;\n\t\t} );\n\n\t\tdocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { targetRanges, domEvent, inputType } = data;\n\t\t\tconst deleteEventSpec = DELETE_EVENT_TYPES[ inputType ];\n\n\t\t\tif ( !deleteEventSpec ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst deleteData: Partial<DeleteEventData> = {\n\t\t\t\tdirection: deleteEventSpec.direction,\n\t\t\t\tunit: deleteEventSpec.unit,\n\t\t\t\tsequence\n\t\t\t};\n\n\t\t\tif ( deleteData.unit == DELETE_SELECTION ) {\n\t\t\t\tdeleteData.selectionToRemove = view.createSelection( targetRanges[ 0 ] );\n\t\t\t}\n\n\t\t\t// The default deletion unit for deleteContentBackward is a single code point\n\t\t\t// but if the browser provides a wider target range then we should use it.\n\t\t\tif ( inputType === 'deleteContentBackward' ) {\n\t\t\t\t// On Android, deleteContentBackward has sequence 1 by default.\n\t\t\t\tif ( env.isAndroid ) {\n\t\t\t\t\tdeleteData.sequence = 1;\n\t\t\t\t}\n\n\t\t\t\t// The beforeInput event wants more than a single character to be removed.\n\t\t\t\tif ( shouldUseTargetRanges( targetRanges ) ) {\n\t\t\t\t\tdeleteData.unit = DELETE_SELECTION;\n\t\t\t\t\tdeleteData.selectionToRemove = view.createSelection( targetRanges );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst eventInfo = new BubblingEventInfo( document, 'delete', targetRanges[ 0 ] );\n\n\t\t\tdocument.fire( eventInfo, new DomEventData( view, domEvent, deleteData ) );\n\n\t\t\t// Stop the beforeinput event if `delete` event was stopped.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/753\n\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\n\t\t// TODO: to be removed when https://bugs.chromium.org/p/chromium/issues/detail?id=1365311 is solved.\n\t\tif ( env.isBlink ) {\n\t\t\tenableChromeWorkaround( this );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic stopObserving(): void {}\n}\n\n/**\n * Event fired when the user tries to delete content (e.g. presses <kbd>Delete</kbd> or <kbd>Backspace</kbd>).\n *\n * Note: This event is fired by the {@link module:typing/deleteobserver~DeleteObserver delete observer}\n * (usually registered by the {@link module:typing/delete~Delete delete feature}).\n *\n * @eventName module:engine/view/document~Document#delete\n * @param data The event data.\n */\nexport type ViewDocumentDeleteEvent = BubblingEvent<{\n\tname: 'delete';\n\targs: [ data: DeleteEventData ];\n}>;\n\nexport interface DeleteEventData extends DomEventData<InputEvent> {\n\n\t/**\n\t * The direction in which the deletion should happen.\n\t */\n\tdirection: 'backward' | 'forward';\n\n\t/**\n\t * The \"amount\" of content that should be deleted.\n\t */\n\tunit: 'selection' | 'codePoint' | 'character' | 'word';\n\n\t/**\n\t * A number describing which subsequent delete event it is without the key being released.\n\t * If it's 2 or more it means that the key was pressed and hold.\n\t */\n\tsequence: number;\n\n\t/**\n\t * View selection which content should be removed. If not set,\n\t * current selection should be used.\n\t */\n\tselectionToRemove?: ViewSelection | ViewDocumentSelection;\n}\n\n/**\n * Enables workaround for the issue https://github.com/ckeditor/ckeditor5/issues/11904.\n */\nfunction enableChromeWorkaround( observer: DeleteObserver ) {\n\tconst view = observer.view;\n\tconst document = view.document;\n\n\tlet pressedKeyCode: number | null = null;\n\tlet beforeInputReceived = false;\n\n\tdocument.on<ViewDocumentKeyDownEvent>( 'keydown', ( evt, { keyCode } ) => {\n\t\tpressedKeyCode = keyCode;\n\t\tbeforeInputReceived = false;\n\t} );\n\n\tdocument.on<ViewDocumentKeyUpEvent>( 'keyup', ( evt, { keyCode, domEvent } ) => {\n\t\tconst selection = document.selection;\n\t\tconst shouldFireDeleteEvent = observer.isEnabled &&\n\t\t\tkeyCode == pressedKeyCode &&\n\t\t\tisDeleteKeyCode( keyCode ) &&\n\t\t\t!selection.isCollapsed &&\n\t\t\t!beforeInputReceived;\n\n\t\tpressedKeyCode = null;\n\n\t\tif ( shouldFireDeleteEvent ) {\n\t\t\tconst targetRange = selection.getFirstRange()!;\n\t\t\tconst eventInfo = new BubblingEventInfo( document, 'delete', targetRange );\n\t\t\tconst deleteData: Partial<DeleteEventData> = {\n\t\t\t\tunit: DELETE_SELECTION,\n\t\t\t\tdirection: getDeleteDirection( keyCode ),\n\t\t\t\tselectionToRemove: selection\n\t\t\t};\n\n\t\t\tdocument.fire( eventInfo, new DomEventData( view, domEvent, deleteData ) );\n\t\t}\n\t} );\n\n\tdocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, { inputType } ) => {\n\t\tconst deleteEventSpec = DELETE_EVENT_TYPES[ inputType ];\n\t\tconst isMatchingBeforeInput = isDeleteKeyCode( pressedKeyCode ) &&\n\t\t\tdeleteEventSpec &&\n\t\t\tdeleteEventSpec.direction == getDeleteDirection( pressedKeyCode );\n\n\t\tif ( isMatchingBeforeInput ) {\n\t\t\tbeforeInputReceived = true;\n\t\t}\n\t}, { priority: 'high' } );\n\n\tdocument.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, { inputType, data } ) => {\n\t\tconst shouldIgnoreBeforeInput = pressedKeyCode == keyCodes.delete &&\n\t\t\tinputType == 'insertText' &&\n\t\t\tdata == '\\x7f'; // Delete character :P\n\n\t\tif ( shouldIgnoreBeforeInput ) {\n\t\t\tevt.stop();\n\t\t}\n\t}, { priority: 'high' } );\n\n\tfunction isDeleteKeyCode( keyCode: number | null ): boolean {\n\t\treturn keyCode == keyCodes.backspace || keyCode == keyCodes.delete;\n\t}\n\n\tfunction getDeleteDirection( keyCode: number | null ): 'backward' | 'forward' {\n\t\treturn keyCode == keyCodes.backspace ? DELETE_BACKWARD : DELETE_FORWARD;\n\t}\n}\n\n/**\n * Verifies whether the given target ranges cover more than a single character and should be used instead of a single code-point deletion.\n */\nfunction shouldUseTargetRanges( targetRanges: Array<ViewRange> ): boolean {\n\t// The collapsed target range could happen for example while deleting inside an inline filler\n\t// (it's mapped to collapsed position before an inline filler).\n\tif ( targetRanges.length != 1 || targetRanges[ 0 ].isCollapsed ) {\n\t\treturn false;\n\t}\n\n\tconst walker = targetRanges[ 0 ].getWalker( {\n\t\tdirection: 'backward',\n\t\tsingleCharacters: true,\n\t\tignoreElementEnd: true\n\t} );\n\n\tlet count = 0;\n\n\tfor ( const { nextPosition } of walker ) {\n\t\t// There is some element in the range so count it as a single character.\n\t\tif ( !nextPosition.parent.is( '$text' ) ) {\n\t\t\tcount++;\n\t\t} else {\n\t\t\tconst data = nextPosition.parent.data;\n\t\t\tconst offset = nextPosition.offset;\n\n\t\t\t// Count combined symbols and emoji sequences as a single character.\n\t\t\tif (\n\t\t\t\tisInsideSurrogatePair( data, offset ) ||\n\t\t\t\tisInsideCombinedSymbol( data, offset ) ||\n\t\t\t\tisInsideEmojiSequence( data, offset )\n\t\t\t) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tcount++;\n\t\t}\n\n\t\tif ( count > 1 ) {\n\t\t\treturn true;\n\t\t}\n\t}\n\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/delete\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport DeleteCommand from './deletecommand';\nimport DeleteObserver, { type ViewDocumentDeleteEvent } from './deleteobserver';\n\n/**\n * The delete and backspace feature. Handles keys such as <kbd>Delete</kbd> and <kbd>Backspace</kbd>, other\n * keystrokes and user actions that result in deleting content in the editor.\n */\nexport default class Delete extends Plugin {\n\t/**\n\t * Whether pressing backspace should trigger undo action\n\t */\n\tprivate _undoOnBackspace!: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Delete' {\n\t\treturn 'Delete';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst modelDocument = editor.model.document;\n\n\t\tview.addObserver( DeleteObserver );\n\n\t\tthis._undoOnBackspace = false;\n\n\t\tconst deleteForwardCommand = new DeleteCommand( editor, 'forward' );\n\n\t\t// Register `deleteForward` command and add `forwardDelete` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'deleteForward', deleteForwardCommand );\n\t\teditor.commands.add( 'forwardDelete', deleteForwardCommand );\n\n\t\teditor.commands.add( 'delete', new DeleteCommand( editor, 'backward' ) );\n\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\t// When not in composition, we handle the action, so prevent the default one.\n\t\t\t// When in composition, it's the browser who modify the DOM (renderer is disabled).\n\t\t\tif ( !viewDocument.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\tconst { direction, sequence, selectionToRemove, unit } = data;\n\t\t\tconst commandName = direction === 'forward' ? 'deleteForward' : 'delete';\n\t\t\tconst commandData: Parameters<DeleteCommand[ 'execute' ]>[ 0 ] = { sequence };\n\n\t\t\tif ( unit == 'selection' ) {\n\t\t\t\tconst modelRanges = Array.from( selectionToRemove!.getRanges() ).map( viewRange => {\n\t\t\t\t\treturn editor.editing.mapper.toModelRange( viewRange );\n\t\t\t\t} );\n\n\t\t\t\tcommandData.selection = editor.model.createSelection( modelRanges );\n\t\t\t} else {\n\t\t\t\tcommandData.unit = unit;\n\t\t\t}\n\n\t\t\teditor.execute( commandName, commandData );\n\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\n\t\tif ( this.editor.plugins.has( 'UndoEditing' ) ) {\n\t\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\t\tif ( this._undoOnBackspace && data.direction == 'backward' && data.sequence == 1 && data.unit == 'codePoint' ) {\n\t\t\t\t\tthis._undoOnBackspace = false;\n\n\t\t\t\t\teditor.execute( 'undo' );\n\n\t\t\t\t\tdata.preventDefault();\n\t\t\t\t\tevt.stop();\n\t\t\t\t}\n\t\t\t}, { context: '$capture' } );\n\n\t\t\tthis.listenTo( modelDocument, 'change', () => {\n\t\t\t\tthis._undoOnBackspace = false;\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * If the next user action after calling this method is pressing backspace, it would undo the last change.\n\t *\n\t * Requires {@link module:undo/undoediting~UndoEditing} plugin. If not loaded, does nothing.\n\t */\n\tpublic requestUndoOnBackspace(): void {\n\t\tif ( this.editor.plugins.has( 'UndoEditing' ) ) {\n\t\t\tthis._undoOnBackspace = true;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/utils/getlasttextline\n */\n\nimport type { Model, Range } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Returns the last text line from the given range.\n *\n * \"The last text line\" is understood as text (from one or more text nodes) which is limited either by a parent block\n * or by inline elements (e.g. `<softBreak>`).\n *\n * ```ts\n * const rangeToCheck = model.createRange(\n * \tmodel.createPositionAt( paragraph, 0 ),\n * \tmodel.createPositionAt( paragraph, 'end' )\n * );\n *\n * const { text, range } = getLastTextLine( rangeToCheck, model );\n * ```\n *\n * For model below, the returned `text` will be \"Foo bar baz\" and `range` will be set on whole `<paragraph>` content:\n *\n * ```xml\n * <paragraph>Foo bar baz<paragraph>\n * ```\n *\n * However, in below case, `text` will be set to \"baz\" and `range` will be set only on \"baz\".\n *\n * ```xml\n * <paragraph>Foo<softBreak></softBreak>bar<softBreak></softBreak>baz<paragraph>\n * ```\n */\nexport default function getLastTextLine( range: Range, model: Model ): LastTextLineData {\n\tlet start = range.start;\n\n\tconst text = Array.from( range.getItems() ).reduce( ( rangeText, node ) => {\n\t\t// Trim text to a last occurrence of an inline element and update range start.\n\t\tif ( !( node.is( '$text' ) || node.is( '$textProxy' ) ) ) {\n\t\t\tstart = model.createPositionAfter( node );\n\n\t\t\treturn '';\n\t\t}\n\n\t\treturn rangeText + node.data;\n\t}, '' );\n\n\treturn { text, range: model.createRange( start, range.end ) };\n}\n\n/**\n * The value returned by {@link module:typing/utils/getlasttextline~getLastTextLine}.\n */\nexport type LastTextLineData = {\n\n\t/**\n\t * The text from the text nodes in the last text line.\n\t */\n\ttext: string;\n\n\t/**\n\t * The range set on the text nodes in the last text line.\n\t */\n\trange: Range;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/textwatcher\n */\n\nimport { ObservableMixin, type ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\nimport getLastTextLine from './utils/getlasttextline';\n\nimport type {\n\tBatch,\n\tModel,\n\tRange,\n\tDocumentChangeEvent,\n\tDocumentSelectionChangeEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * The text watcher feature.\n *\n * Fires the {@link module:typing/textwatcher~TextWatcher#event:matched:data `matched:data`},\n * {@link module:typing/textwatcher~TextWatcher#event:matched:selection `matched:selection`} and\n * {@link module:typing/textwatcher~TextWatcher#event:unmatched `unmatched`} events on typing or selection changes.\n */\nexport default class TextWatcher extends ObservableMixin() {\n\t/**\n\t * The editor's model.\n\t */\n\tpublic readonly model: Model;\n\n\t/**\n\t * The function used to match the text.\n\t *\n\t * The test callback can return 3 values:\n\t *\n\t * * `false` if there is no match,\n\t * * `true` if there is a match,\n\t * * an object if there is a match and we want to pass some additional information to the {@link #event:matched:data} event.\n\t */\n\tpublic testCallback: ( text: string ) => unknown;\n\n\t/**\n\t * Whether there is a match currently.\n\t */\n\tprivate _hasMatch: boolean;\n\n\t/**\n\t * Flag indicating whether the `TextWatcher` instance is enabled or disabled.\n\t * A disabled TextWatcher will not evaluate text.\n\t *\n\t * To disable TextWatcher:\n\t *\n\t * ```ts\n\t * const watcher = new TextWatcher( editor.model, testCallback );\n\t *\n\t * // After this a testCallback will not be called.\n\t * watcher.isEnabled = false;\n\t * ```\n\t */\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * Creates a text watcher instance.\n\t *\n\t * @param testCallback See {@link module:typing/textwatcher~TextWatcher#testCallback}.\n\t */\n\tconstructor( model: Model, testCallback: ( text: string ) => unknown ) {\n\t\tsuper();\n\n\t\tthis.model = model;\n\t\tthis.testCallback = testCallback;\n\t\tthis._hasMatch = false;\n\n\t\tthis.set( 'isEnabled', true );\n\n\t\t// Toggle text watching on isEnabled state change.\n\t\tthis.on<ObservableChangeEvent>( 'change:isEnabled', () => {\n\t\t\tif ( this.isEnabled ) {\n\t\t\t\tthis._startListening();\n\t\t\t} else {\n\t\t\t\tthis.stopListening( model.document.selection );\n\t\t\t\tthis.stopListening( model.document );\n\t\t\t}\n\t\t} );\n\n\t\tthis._startListening();\n\t}\n\n\t/**\n\t * Flag indicating whether there is a match currently.\n\t */\n\tpublic get hasMatch(): boolean {\n\t\treturn this._hasMatch;\n\t}\n\n\t/**\n\t * Starts listening to the editor for typing and selection events.\n\t */\n\tprivate _startListening(): void {\n\t\tconst model = this.model;\n\t\tconst document = model.document;\n\n\t\tthis.listenTo<DocumentSelectionChangeEvent>( document.selection, 'change:range', ( evt, { directChange } ) => {\n\t\t\t// Indirect changes (i.e. when the user types or external changes are applied) are handled in the document's change event.\n\t\t\tif ( !directChange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Act only on collapsed selection.\n\t\t\tif ( !document.selection.isCollapsed ) {\n\t\t\t\tif ( this.hasMatch ) {\n\t\t\t\t\tthis.fire( 'unmatched' );\n\t\t\t\t\tthis._hasMatch = false;\n\t\t\t\t}\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._evaluateTextBeforeSelection( 'selection' );\n\t\t} );\n\n\t\tthis.listenTo<DocumentChangeEvent>( document, 'change:data', ( evt, batch ) => {\n\t\t\tif ( batch.isUndo || !batch.isLocal ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._evaluateTextBeforeSelection( 'data', { batch } );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the editor content for matched text.\n\t *\n\t * @fires matched:data\n\t * @fires matched:selection\n\t * @fires unmatched\n\t *\n\t * @param suffix A suffix used for generating the event name.\n\t * @param data Data object for event.\n\t */\n\tprivate _evaluateTextBeforeSelection( suffix: 'data' | 'selection', data: { batch?: Batch } = {} ): void {\n\t\tconst model = this.model;\n\t\tconst document = model.document;\n\t\tconst selection = document.selection;\n\n\t\tconst rangeBeforeSelection = model.createRange( model.createPositionAt( selection.focus!.parent, 0 ), selection.focus! );\n\n\t\tconst { text, range } = getLastTextLine( rangeBeforeSelection, model );\n\n\t\tconst testResult = this.testCallback( text );\n\n\t\tif ( !testResult && this.hasMatch ) {\n\t\t\tthis.fire<TextWatcherUnmatchedEvent>( 'unmatched' );\n\t\t}\n\n\t\tthis._hasMatch = !!testResult;\n\n\t\tif ( testResult ) {\n\t\t\tconst eventData = Object.assign( data, { text, range } );\n\n\t\t\t// If the test callback returns an object with additional data, assign the data as well.\n\t\t\tif ( typeof testResult == 'object' ) {\n\t\t\t\tObject.assign( eventData, testResult );\n\t\t\t}\n\n\t\t\tthis.fire<TextWatcherMatchedEvent>( `matched:${ suffix }`, eventData );\n\t\t}\n\t}\n}\n\nexport type TextWatcherMatchedEvent<TCallbackResult extends Record<string, unknown> = Record<string, unknown>> = {\n\tname: 'matched' | 'matched:data' | 'matched:selection';\n\targs: [ {\n\t\ttext: string;\n\t\trange: Range;\n\t\tbatch?: Batch;\n\t} & TCallbackResult ];\n};\n\n/**\n * Fired whenever the text watcher found a match for data changes.\n *\n * @eventName ~TextWatcher#matched:data\n * @param data Event data.\n * @param data.testResult The additional data returned from the {@link module:typing/textwatcher~TextWatcher#testCallback}.\n */\nexport type TextWatcherMatchedDataEvent<TCallbackResult extends Record<string, unknown>> = {\n\tname: 'matched:data';\n\targs: [ data: TextWatcherMatchedDataEventData & TCallbackResult ];\n};\n\nexport interface TextWatcherMatchedDataEventData {\n\n\t/**\n\t * The full text before selection to which the regexp was applied.\n\t */\n\ttext: string;\n\n\t/**\n\t * The range representing the position of the `data.text`.\n\t */\n\trange: Range;\n\n\tbatch: Batch;\n}\n\n/**\n * Fired whenever the text watcher found a match for selection changes.\n *\n * @eventName ~TextWatcher#matched:selection\n * @param data Event data.\n * @param data.testResult The additional data returned from the {@link module:typing/textwatcher~TextWatcher#testCallback}.\n */\nexport type TextWatcherMatchedSelectionEvent<TCallbackResult extends Record<string, unknown>> = {\n\tname: 'matched:selection';\n\targs: [ data: TextWatcherMatchedSelectionEventData & TCallbackResult ];\n};\n\nexport interface TextWatcherMatchedSelectionEventData {\n\n\t/**\n\t * The full text before selection.\n\t */\n\ttext: string;\n\n\t/**\n\t * The range representing the position of the `data.text`.\n\t */\n\trange: Range;\n}\n\n/**\n * Fired whenever the text does not match anymore. Fired only when the text watcher found a match.\n *\n * @eventName ~TextWatcher#unmatched\n */\nexport type TextWatcherUnmatchedEvent = {\n\tname: 'unmatched';\n\targs: [];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/twostepcaretmovement\n */\n\nimport { Plugin, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport { keyCodes } from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDocumentSelection,\n\tDocumentSelectionChangeEvent,\n\tDomEventData,\n\tModel,\n\tPosition,\n\tViewDocumentArrowKeyEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * This plugin enables the two-step caret (phantom) movement behavior for\n * {@link module:typing/twostepcaretmovement~TwoStepCaretMovement#registerAttribute registered attributes}\n * on arrow right (<kbd>→</kbd>) and left (<kbd>←</kbd>) key press.\n *\n * Thanks to this (phantom) caret movement the user is able to type before/after as well as at the\n * beginning/end of an attribute.\n *\n * **Note:** This plugin support right–to–left (Arabic, Hebrew, etc.) content by mirroring its behavior\n * but for the sake of simplicity examples showcase only left–to–right use–cases.\n *\n * # Forward movement\n *\n * ## \"Entering\" an attribute:\n *\n * When this plugin is enabled and registered for the `a` attribute and the selection is right before it\n * (at the attribute boundary), pressing the right arrow key will not move the selection but update its\n * attributes accordingly:\n *\n * * When enabled:\n *\n * ```xml\n * foo{}<$text a=\"true\">bar</$text>\n * ```\n *\n * \t<kbd>→</kbd>\n *\n * ```xml\n * foo<$text a=\"true\">{}bar</$text>\n * ```\n *\n * * When disabled:\n *\n * ```xml\n * foo{}<$text a=\"true\">bar</$text>\n * ```\n *\n * \t<kbd>→</kbd>\n *\n * ```xml\n * foo<$text a=\"true\">b{}ar</$text>\n * ```\n *\n *\n * ## \"Leaving\" an attribute:\n *\n * * When enabled:\n *\n * ```xml\n * <$text a=\"true\">bar{}</$text>baz\n * ```\n *\n * \t<kbd>→</kbd>\n *\n * ```xml\n * <$text a=\"true\">bar</$text>{}baz\n * ```\n *\n * * When disabled:\n *\n * ```xml\n * <$text a=\"true\">bar{}</$text>baz\n * ```\n *\n * \t<kbd>→</kbd>\n *\n * ```xml\n * <$text a=\"true\">bar</$text>b{}az\n * ```\n *\n * # Backward movement\n *\n * * When enabled:\n *\n * ```xml\n * <$text a=\"true\">bar</$text>{}baz\n * ```\n *\n * \t<kbd>←</kbd>\n *\n * ```xml\n * <$text a=\"true\">bar{}</$text>baz\n * ```\n *\n * * When disabled:\n *\n * ```xml\n * <$text a=\"true\">bar</$text>{}baz\n * ```\n *\n * \t<kbd>←</kbd>\n *\n * ```xml\n * <$text a=\"true\">ba{}r</$text>b{}az\n * ```\n *\n * # Multiple attributes\n *\n * * When enabled and many attributes starts or ends at the same position:\n *\n * ```xml\n * <$text a=\"true\" b=\"true\">bar</$text>{}baz\n * ```\n *\n * \t<kbd>←</kbd>\n *\n * ```xml\n * <$text a=\"true\" b=\"true\">bar{}</$text>baz\n * ```\n *\n * * When enabled and one procedes another:\n *\n * ```xml\n * <$text a=\"true\">bar</$text><$text b=\"true\">{}bar</$text>\n * ```\n *\n * \t<kbd>←</kbd>\n *\n * ```xml\n * <$text a=\"true\">bar{}</$text><$text b=\"true\">bar</$text>\n * ```\n *\n */\nexport default class TwoStepCaretMovement extends Plugin {\n\t/**\n\t * A set of attributes to handle.\n\t */\n\tprivate attributes: Set<string>;\n\n\t/**\n\t * The current UID of the overridden gravity, as returned by\n\t * {@link module:engine/model/writer~Writer#overrideSelectionGravity}.\n\t */\n\tprivate _overrideUid: string | null;\n\n\t/**\n\t * A flag indicating that the automatic gravity restoration should not happen upon the next\n\t * gravity restoration.\n\t * {@link module:engine/model/selection~Selection#event:change:range} event.\n\t */\n\n\tprivate _isNextGravityRestorationSkipped!: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TwoStepCaretMovement' {\n\t\treturn 'TwoStepCaretMovement';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis.attributes = new Set();\n\t\tthis._overrideUid = null;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst locale = editor.locale;\n\n\t\tconst modelSelection = model.document.selection;\n\n\t\t// Listen to keyboard events and handle the caret movement according to the 2-step caret logic.\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>( view.document, 'arrowKey', ( evt, data ) => {\n\t\t\t// This implementation works only for collapsed selection.\n\t\t\tif ( !modelSelection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// When user tries to expand the selection or jump over the whole word or to the beginning/end then\n\t\t\t// two-steps movement is not necessary.\n\t\t\tif ( data.shiftKey || data.altKey || data.ctrlKey ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst arrowRightPressed = data.keyCode == keyCodes.arrowright;\n\t\t\tconst arrowLeftPressed = data.keyCode == keyCodes.arrowleft;\n\n\t\t\t// When neither left or right arrow has been pressed then do noting.\n\t\t\tif ( !arrowRightPressed && !arrowLeftPressed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst contentDirection = locale.contentLanguageDirection;\n\t\t\tlet isMovementHandled = false;\n\n\t\t\tif ( ( contentDirection === 'ltr' && arrowRightPressed ) || ( contentDirection === 'rtl' && arrowLeftPressed ) ) {\n\t\t\t\tisMovementHandled = this._handleForwardMovement( data );\n\t\t\t} else {\n\t\t\t\tisMovementHandled = this._handleBackwardMovement( data );\n\t\t\t}\n\n\t\t\t// Stop the keydown event if the two-step caret movement handled it. Avoid collisions\n\t\t\t// with other features which may also take over the caret movement (e.g. Widget).\n\t\t\tif ( isMovementHandled === true ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: '$text', priority: 'highest' } );\n\n\t\tthis._isNextGravityRestorationSkipped = false;\n\n\t\t// The automatic gravity restoration logic.\n\t\tthis.listenTo<DocumentSelectionChangeEvent>( modelSelection, 'change:range', ( evt, data ) => {\n\t\t\t// Skipping the automatic restoration is needed if the selection should change\n\t\t\t// but the gravity must remain overridden afterwards. See the #handleBackwardMovement\n\t\t\t// to learn more.\n\t\t\tif ( this._isNextGravityRestorationSkipped ) {\n\t\t\t\tthis._isNextGravityRestorationSkipped = false;\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Skip automatic restore when the gravity is not overridden — simply, there's nothing to restore\n\t\t\t// at this moment.\n\t\t\tif ( !this._isGravityOverridden ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Skip automatic restore when the change is indirect AND the selection is at the attribute boundary.\n\t\t\t// It means that e.g. if the change was external (collaboration) and the user had their\n\t\t\t// selection around the link, its gravity should remain intact in this change:range event.\n\t\t\tif ( !data.directChange && isBetweenDifferentAttributes( modelSelection.getFirstPosition()!, this.attributes ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._restoreGravity();\n\t\t} );\n\t}\n\n\t/**\n\t * Registers a given attribute for the two-step caret movement.\n\t *\n\t * @param attribute Name of the attribute to handle.\n\t */\n\tpublic registerAttribute( attribute: string ): void {\n\t\tthis.attributes.add( attribute );\n\t}\n\n\t/**\n\t * Updates the document selection and the view according to the two–step caret movement state\n\t * when moving **forwards**. Executed upon `keypress` in the {@link module:engine/view/view~View}.\n\t *\n\t * @param data Data of the key press.\n\t * @returns `true` when the handler prevented caret movement.\n\t */\n\tprivate _handleForwardMovement( data: DomEventData ): boolean {\n\t\tconst attributes = this.attributes;\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst position = selection.getFirstPosition()!;\n\n\t\t// DON'T ENGAGE 2-SCM if gravity is already overridden. It means that we just entered\n\t\t//\n\t\t// \t\t<paragraph>foo<$text attribute>{}bar</$text>baz</paragraph>\n\t\t//\n\t\t// or left the attribute\n\t\t//\n\t\t// \t\t<paragraph>foo<$text attribute>bar</$text>{}baz</paragraph>\n\t\t//\n\t\t// and the gravity will be restored automatically.\n\t\tif ( this._isGravityOverridden ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// DON'T ENGAGE 2-SCM when the selection is at the beginning of the block AND already has the\n\t\t// attribute:\n\t\t// * when the selection was initially set there using the mouse,\n\t\t// * when the editor has just started\n\t\t//\n\t\t//\t\t<paragraph><$text attribute>{}bar</$text>baz</paragraph>\n\t\t//\n\t\tif ( position.isAtStart && hasAnyAttribute( selection, attributes ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// ENGAGE 2-SCM When at least one of the observed attributes changes its value (incl. starts, ends).\n\t\t//\n\t\t//\t\t<paragraph>foo<$text attribute>bar{}</$text>baz</paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>bar{}</$text><$text otherAttribute>baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute=1>bar{}</$text><$text attribute=2>baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo{}<$text attribute>bar</$text>baz</paragraph>\n\t\t//\n\t\tif ( isBetweenDifferentAttributes( position, attributes ) ) {\n\t\t\tpreventCaretMovement( data );\n\t\t\tthis._overrideGravity();\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Updates the document selection and the view according to the two–step caret movement state\n\t * when moving **backwards**. Executed upon `keypress` in the {@link module:engine/view/view~View}.\n\t *\n\t * @param data Data of the key press.\n\t * @returns `true` when the handler prevented caret movement\n\t */\n\tprivate _handleBackwardMovement( data: DomEventData ): boolean {\n\t\tconst attributes = this.attributes;\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst position = selection.getFirstPosition()!;\n\n\t\t// When the gravity is already overridden (by this plugin), it means we are on the two-step position.\n\t\t// Prevent the movement, restore the gravity and update selection attributes.\n\t\t//\n\t\t//\t\t<paragraph>foo<$text attribute=1>bar</$text><$text attribute=2>{}baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>bar</$text><$text otherAttribute>{}baz</$text></paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>{}bar</$text>baz</paragraph>\n\t\t//\t\t<paragraph>foo<$text attribute>bar</$text>{}baz</paragraph>\n\t\t//\n\t\tif ( this._isGravityOverridden ) {\n\t\t\tpreventCaretMovement( data );\n\t\t\tthis._restoreGravity();\n\t\t\tsetSelectionAttributesFromTheNodeBefore( model, attributes, position );\n\n\t\t\treturn true;\n\t\t} else {\n\t\t\t// REMOVE SELECTION ATTRIBUTE when restoring gravity towards a non-existent content at the\n\t\t\t// beginning of the block.\n\t\t\t//\n\t\t\t// \t\t<paragraph>{}<$text attribute>bar</$text></paragraph>\n\t\t\t//\n\t\t\tif ( position.isAtStart ) {\n\t\t\t\tif ( hasAnyAttribute( selection, attributes ) ) {\n\t\t\t\t\tpreventCaretMovement( data );\n\t\t\t\t\tsetSelectionAttributesFromTheNodeBefore( model, attributes, position );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\t\t\t}\n\n\t\t\t// When we are moving from natural gravity, to the position of the 2SCM, we need to override the gravity,\n\t\t\t// and make sure it won't be restored. Unless it's at the end of the block and an observed attribute.\n\t\t\t// We need to check if the caret is a one position before the attribute boundary:\n\t\t\t//\n\t\t\t//\t\t<paragraph>foo<$text attribute=1>bar</$text><$text attribute=2>b{}az</$text></paragraph>\n\t\t\t//\t\t<paragraph>foo<$text attribute>bar</$text><$text otherAttribute>b{}az</$text></paragraph>\n\t\t\t//\t\t<paragraph>foo<$text attribute>b{}ar</$text>baz</paragraph>\n\t\t\t//\t\t<paragraph>foo<$text attribute>bar</$text>b{}az</paragraph>\n\t\t\t//\n\t\t\tif ( isStepAfterAnyAttributeBoundary( position, attributes ) ) {\n\t\t\t\t// ENGAGE 2-SCM if the selection has no attribute. This may happen when the user\n\t\t\t\t// left the attribute using a FORWARD 2-SCM.\n\t\t\t\t//\n\t\t\t\t// \t\t<paragraph><$text attribute>bar</$text>{}</paragraph>\n\t\t\t\t//\n\t\t\t\tif (\n\t\t\t\t\tposition.isAtEnd &&\n\t\t\t\t\t!hasAnyAttribute( selection, attributes ) &&\n\t\t\t\t\tisBetweenDifferentAttributes( position, attributes )\n\t\t\t\t) {\n\t\t\t\t\tpreventCaretMovement( data );\n\t\t\t\t\tsetSelectionAttributesFromTheNodeBefore( model, attributes, position );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t\t// Skip the automatic gravity restore upon the next selection#change:range event.\n\t\t\t\t// If not skipped, it would automatically restore the gravity, which should remain\n\t\t\t\t// overridden.\n\t\t\t\tthis._isNextGravityRestorationSkipped = true;\n\t\t\t\tthis._overrideGravity();\n\n\t\t\t\t// Don't return \"true\" here because we didn't call _preventCaretMovement.\n\t\t\t\t// Returning here will destabilize the filler logic, which also listens to\n\t\t\t\t// keydown (and the event would be stopped).\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * `true` when the gravity is overridden for the plugin.\n\t */\n\tprivate get _isGravityOverridden(): boolean {\n\t\treturn !!this._overrideUid;\n\t}\n\n\t/**\n\t * Overrides the gravity using the {@link module:engine/model/writer~Writer model writer}\n\t * and stores the information about this fact in the {@link #_overrideUid}.\n\t *\n\t * A shorthand for {@link module:engine/model/writer~Writer#overrideSelectionGravity}.\n\t */\n\tprivate _overrideGravity(): void {\n\t\tthis._overrideUid = this.editor.model.change( writer => {\n\t\t\treturn writer.overrideSelectionGravity();\n\t\t} );\n\t}\n\n\t/**\n\t * Restores the gravity using the {@link module:engine/model/writer~Writer model writer}.\n\t *\n\t * A shorthand for {@link module:engine/model/writer~Writer#restoreSelectionGravity}.\n\t */\n\tprivate _restoreGravity(): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\twriter.restoreSelectionGravity( this._overrideUid! );\n\t\t\tthis._overrideUid = null;\n\t\t} );\n\t}\n}\n\n/**\n * Checks whether the selection has any of given attributes.\n */\nfunction hasAnyAttribute( selection: DocumentSelection, attributes: Set<string> ): boolean {\n\tfor ( const observedAttribute of attributes ) {\n\t\tif ( selection.hasAttribute( observedAttribute ) ) {\n\t\t\treturn true;\n\t\t}\n\t}\n\n\treturn false;\n}\n\n/**\n * Applies the given attributes to the current selection using using the\n * values from the node before the current position. Uses\n * the {@link module:engine/model/writer~Writer model writer}.\n */\nfunction setSelectionAttributesFromTheNodeBefore( model: Model, attributes: Set<string>, position: Position ) {\n\tconst nodeBefore = position.nodeBefore;\n\tmodel.change( writer => {\n\t\tif ( nodeBefore ) {\n\t\t\twriter.setSelectionAttribute( nodeBefore.getAttributes() );\n\t\t} else {\n\t\t\twriter.removeSelectionAttribute( attributes );\n\t\t}\n\t} );\n}\n\n/**\n * Prevents the caret movement in the view by calling `preventDefault` on the event data.\n *\n * @alias data.preventDefault\n */\nfunction preventCaretMovement( data: DomEventData ) {\n\tdata.preventDefault();\n}\n\n/**\n * Checks whether the step before `isBetweenDifferentAttributes()`.\n */\nfunction isStepAfterAnyAttributeBoundary( position: Position, attributes: Set<string> ): boolean {\n\tconst positionBefore = position.getShiftedBy( -1 );\n\treturn isBetweenDifferentAttributes( positionBefore, attributes );\n}\n\n/**\n * Checks whether the given position is between different values of given attributes.\n */\nfunction isBetweenDifferentAttributes( position: Position, attributes: Set<string> ): boolean {\n\tconst { nodeBefore, nodeAfter } = position;\n\tfor ( const observedAttribute of attributes ) {\n\t\tconst attrBefore = nodeBefore ? nodeBefore.getAttribute( observedAttribute ) : undefined;\n\t\tconst attrAfter = nodeAfter ? nodeAfter.getAttribute( observedAttribute ) : undefined;\n\n\t\tif ( attrAfter !== attrBefore ) {\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/texttransformation\n */\n\nimport {\n\tPlugin,\n\ttype Editor\n} from '@ckeditor/ckeditor5-core';\n\nimport type { Position } from '@ckeditor/ckeditor5-engine';\n\nimport TextWatcher, { type TextWatcherMatchedDataEvent } from './textwatcher';\nimport type { TextTransformationConfig, TextTransformationDescription } from './typingconfig';\nimport type Delete from './delete';\n\nimport { escapeRegExp } from 'lodash-es';\n\n// All named transformations.\nconst TRANSFORMATIONS: Record<string, TextTransformationDescription> = {\n\t// Common symbols:\n\tcopyright: { from: '(c)', to: '©' },\n\tregisteredTrademark: { from: '(r)', to: '®' },\n\ttrademark: { from: '(tm)', to: '™' },\n\n\t// Mathematical:\n\toneHalf: { from: /(^|[^/a-z0-9])(1\\/2)([^/a-z0-9])$/i, to: [ null, '½', null ] },\n\toneThird: { from: /(^|[^/a-z0-9])(1\\/3)([^/a-z0-9])$/i, to: [ null, '⅓', null ] },\n\ttwoThirds: { from: /(^|[^/a-z0-9])(2\\/3)([^/a-z0-9])$/i, to: [ null, '⅔', null ] },\n\toneForth: { from: /(^|[^/a-z0-9])(1\\/4)([^/a-z0-9])$/i, to: [ null, '¼', null ] },\n\tthreeQuarters: { from: /(^|[^/a-z0-9])(3\\/4)([^/a-z0-9])$/i, to: [ null, '¾', null ] },\n\tlessThanOrEqual: { from: '<=', to: '≤' },\n\tgreaterThanOrEqual: { from: '>=', to: '≥' },\n\tnotEqual: { from: '!=', to: '≠' },\n\tarrowLeft: { from: '<-', to: '←' },\n\tarrowRight: { from: '->', to: '→' },\n\n\t// Typography:\n\thorizontalEllipsis: { from: '...', to: '…' },\n\tenDash: { from: /(^| )(--)( )$/, to: [ null, '–', null ] },\n\temDash: { from: /(^| )(---)( )$/, to: [ null, '—', null ] },\n\t// Quotations:\n\t// English, US\n\tquotesPrimary: { from: buildQuotesRegExp( '\"' ), to: [ null, '“', null, '”' ] },\n\tquotesSecondary: { from: buildQuotesRegExp( '\\'' ), to: [ null, '‘', null, '’' ] },\n\n\t// English, UK\n\tquotesPrimaryEnGb: { from: buildQuotesRegExp( '\\'' ), to: [ null, '‘', null, '’' ] },\n\tquotesSecondaryEnGb: { from: buildQuotesRegExp( '\"' ), to: [ null, '“', null, '”' ] },\n\n\t// Polish\n\tquotesPrimaryPl: { from: buildQuotesRegExp( '\"' ), to: [ null, '„', null, '”' ] },\n\tquotesSecondaryPl: { from: buildQuotesRegExp( '\\'' ), to: [ null, '‚', null, '’' ] }\n};\n\n// Transformation groups.\nconst TRANSFORMATION_GROUPS: Record<string, Array<string>> = {\n\tsymbols: [ 'copyright', 'registeredTrademark', 'trademark' ],\n\tmathematical: [\n\t\t'oneHalf', 'oneThird', 'twoThirds', 'oneForth', 'threeQuarters',\n\t\t'lessThanOrEqual', 'greaterThanOrEqual', 'notEqual',\n\t\t'arrowLeft', 'arrowRight'\n\t],\n\ttypography: [ 'horizontalEllipsis', 'enDash', 'emDash' ],\n\tquotes: [ 'quotesPrimary', 'quotesSecondary' ]\n};\n\n// A set of default transformations provided by the feature.\nconst DEFAULT_TRANSFORMATIONS = [\n\t'symbols',\n\t'mathematical',\n\t'typography',\n\t'quotes'\n];\n\n/**\n * The text transformation plugin.\n */\nexport default class TextTransformation extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ 'Delete', 'Input' ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TextTransformation' {\n\t\treturn 'TextTransformation';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'typing', {\n\t\t\ttransformations: {\n\t\t\t\tinclude: DEFAULT_TRANSFORMATIONS\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst model = this.editor.model;\n\t\tconst modelSelection = model.document.selection;\n\n\t\tmodelSelection.on( 'change:range', () => {\n\t\t\t// Disable plugin when selection is inside a code block.\n\t\t\tthis.isEnabled = !modelSelection.anchor!.parent.is( 'element', 'codeBlock' );\n\t\t} );\n\n\t\tthis._enableTransformationWatchers();\n\t}\n\n\t/**\n\t * Create new TextWatcher listening to the editor for typing and selection events.\n\t */\n\tprivate _enableTransformationWatchers(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst deletePlugin: Delete = editor.plugins.get( 'Delete' );\n\t\tconst normalizedTransformations = normalizeTransformations( editor.config.get( 'typing.transformations' )! );\n\n\t\tconst testCallback = ( text: string ) => {\n\t\t\tfor ( const normalizedTransformation of normalizedTransformations ) {\n\t\t\t\tconst from = normalizedTransformation.from;\n\t\t\t\tconst match = from.test( text );\n\n\t\t\t\tif ( match ) {\n\t\t\t\t\treturn { normalizedTransformation };\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\n\t\tconst watcher = new TextWatcher( editor.model, testCallback );\n\n\t\twatcher.on<TextWatcherMatchedDataEvent<{\n\t\t\tnormalizedTransformation: NormalizedTransformationConfig;\n\t\t}>>( 'matched:data', ( evt, data ) => {\n\t\t\tif ( !data.batch.isTyping ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { from, to } = data.normalizedTransformation;\n\n\t\t\tconst matches = from.exec( data.text )!;\n\t\t\tconst replaces = to( matches.slice( 1 ) );\n\n\t\t\tconst matchedRange = data.range;\n\n\t\t\tlet changeIndex = matches.index;\n\n\t\t\tmodel.enqueueChange( writer => {\n\t\t\t\tfor ( let i = 1; i < matches.length; i++ ) {\n\t\t\t\t\tconst match = matches[ i ];\n\t\t\t\t\tconst replaceWith = replaces[ i - 1 ];\n\n\t\t\t\t\tif ( replaceWith == null ) {\n\t\t\t\t\t\tchangeIndex += match.length;\n\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst replacePosition = matchedRange.start.getShiftedBy( changeIndex );\n\t\t\t\t\tconst replaceRange = model.createRange( replacePosition, replacePosition.getShiftedBy( match.length ) );\n\t\t\t\t\tconst attributes = getTextAttributesAfterPosition( replacePosition );\n\n\t\t\t\t\tmodel.insertContent( writer.createText( replaceWith, attributes ), replaceRange );\n\n\t\t\t\t\tchangeIndex += replaceWith.length;\n\t\t\t\t}\n\n\t\t\t\tmodel.enqueueChange( () => {\n\t\t\t\t\tdeletePlugin.requestUndoOnBackspace();\n\t\t\t\t} );\n\t\t\t} );\n\t\t} );\n\n\t\twatcher.bind( 'isEnabled' ).to( this );\n\t}\n}\n\n/**\n * Normalizes the configuration `from` parameter value.\n * The normalized value for the `from` parameter is a RegExp instance. If the passed `from` is already a RegExp instance,\n * it is returned unchanged.\n */\nfunction normalizeFrom( from: string | RegExp ): RegExp {\n\tif ( typeof from == 'string' ) {\n\t\treturn new RegExp( `(${ escapeRegExp( from ) })$` );\n\t}\n\n\t// `from` is already a regular expression.\n\treturn from;\n}\n\n/**\n * Normalizes the configuration `to` parameter value.\n * The normalized value for the `to` parameter is a function that takes an array and returns an array. See more in the\n * configuration description. If the passed `to` is already a function, it is returned unchanged.\n */\nfunction normalizeTo( to: TextTransformationDescription[ 'to' ] ) {\n\tif ( typeof to == 'string' ) {\n\t\treturn () => [ to ];\n\t} else if ( to instanceof Array ) {\n\t\treturn () => to;\n\t}\n\n\t// `to` is already a function.\n\treturn to;\n}\n\n/**\n * For given `position` returns attributes for the text that is after that position.\n * The text can be in the same text node as the position (`foo[]bar`) or in the next text node (`foo[]<$text bold=\"true\">bar</$text>`).\n */\nfunction getTextAttributesAfterPosition( position: Position ) {\n\tconst textNode = position.textNode ? position.textNode : position.nodeAfter;\n\n\treturn textNode!.getAttributes();\n}\n\n/**\n * Returns a RegExp pattern string that detects a sentence inside a quote.\n *\n * @param quoteCharacter The character to create a pattern for.\n */\nfunction buildQuotesRegExp( quoteCharacter: string ): RegExp {\n\treturn new RegExp( `(^|\\\\s)(${ quoteCharacter })([^${ quoteCharacter }]*)(${ quoteCharacter })$` );\n}\n\n/**\n * Reads text transformation config and returns normalized array of transformations objects.\n */\nfunction normalizeTransformations( config: TextTransformationConfig ): Array<NormalizedTransformationConfig> {\n\tconst extra = config.extra || [];\n\tconst remove = config.remove || [];\n\tconst isNotRemoved = ( transformation: TextTransformationDescription | string ) => !remove.includes( transformation );\n\n\tconst configured = config.include.concat( extra ).filter( isNotRemoved );\n\n\treturn expandGroupsAndRemoveDuplicates( configured )\n\t\t.filter( isNotRemoved ) // Filter out 'remove' transformations as they might be set in group.\n\t\t.map( transformation => (\n\t\t\ttypeof transformation == 'string' && TRANSFORMATIONS[ transformation ] ? TRANSFORMATIONS[ transformation ] : transformation )\n\t\t)\n\t\t// Filter out transformations set as string that has not been found.\n\t\t.filter( ( transformation ): transformation is TextTransformationDescription => typeof transformation === 'object' )\n\t\t.map( transformation => ( {\n\t\t\tfrom: normalizeFrom( transformation.from ),\n\t\t\tto: normalizeTo( transformation.to )\n\t\t} ) );\n}\n\n/**\n * Reads definitions and expands named groups if needed to transformation names.\n * This method also removes duplicated named transformations if any.\n */\nfunction expandGroupsAndRemoveDuplicates(\n\tdefinitions: Array<TextTransformationDescription | string>\n): Array<TextTransformationDescription | string> {\n\t// Set is using to make sure that transformation names are not duplicated.\n\tconst definedTransformations = new Set<TextTransformationDescription | string>();\n\n\tfor ( const transformationOrGroup of definitions ) {\n\t\tif ( typeof transformationOrGroup == 'string' && TRANSFORMATION_GROUPS[ transformationOrGroup ] ) {\n\t\t\tfor ( const transformation of TRANSFORMATION_GROUPS[ transformationOrGroup ] ) {\n\t\t\t\tdefinedTransformations.add( transformation );\n\t\t\t}\n\t\t} else {\n\t\t\tdefinedTransformations.add( transformationOrGroup );\n\t\t}\n\t}\n\n\treturn Array.from( definedTransformations );\n}\n\ntype NormalizedTransformationConfig = {\n\tfrom: RegExp;\n\tto: ( matches: Array<string> ) => Array<string | null>;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/utils/findattributerange\n */\n\nimport type { Position, Model, Range } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Returns a model range that covers all consecutive nodes with the same `attributeName` and its `value`\n * that intersect the given `position`.\n *\n * It can be used e.g. to get the entire range on which the `linkHref` attribute needs to be changed when having a\n * selection inside a link.\n *\n * @param position The start position.\n * @param attributeName The attribute name.\n * @param value The attribute value.\n * @param model The model instance.\n * @returns The link range.\n */\nexport default function findAttributeRange(\n\tposition: Position,\n\tattributeName: string,\n\tvalue: unknown,\n\tmodel: Model\n): Range {\n\treturn model.createRange(\n\t\t_findBound( position, attributeName, value, true, model ),\n\t\t_findBound( position, attributeName, value, false, model )\n\t);\n}\n\n/**\n * Walks forward or backward (depends on the `lookBack` flag), node by node, as long as they have the same attribute value\n * and returns a position just before or after (depends on the `lookBack` flag) the last matched node.\n *\n * @param position The start position.\n * @param attributeName The attribute name.\n * @param value The attribute value.\n * @param lookBack Whether the walk direction is forward (`false`) or backward (`true`).\n * @returns The position just before the last matched node.\n */\nfunction _findBound(\n\tposition: Position,\n\tattributeName: string,\n\tvalue: unknown,\n\tlookBack: boolean,\n\tmodel: Model\n): Position {\n\t// Get node before or after position (depends on `lookBack` flag).\n\t// When position is inside text node then start searching from text node.\n\tlet node = position.textNode || ( lookBack ? position.nodeBefore : position.nodeAfter );\n\n\tlet lastNode = null;\n\n\twhile ( node && node.getAttribute( attributeName ) == value ) {\n\t\tlastNode = node;\n\t\tnode = lookBack ? node.previousSibling : node.nextSibling;\n\t}\n\n\treturn lastNode ? model.createPositionAt( lastNode, lookBack ? 'before' : 'after' ) : position;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport findAttributeRange from './findattributerange';\nimport type { Editor } from '@ckeditor/ckeditor5-core';\nimport type { ViewElement } from '@ckeditor/ckeditor5-engine';\n\n/**\n * @module typing/utils/inlinehighlight\n */\n\n/**\n * Adds a visual highlight style to an attribute element in which the selection is anchored.\n * Together with two-step caret movement, they indicate that the user is typing inside the element.\n *\n * Highlight is turned on by adding the given class to the attribute element in the view:\n *\n * * The class is removed before the conversion has started, as callbacks added with the `'highest'` priority\n * to {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher} events.\n * * The class is added in the view post fixer, after other changes in the model tree were converted to the view.\n *\n * This way, adding and removing the highlight does not interfere with conversion.\n *\n * Usage:\n *\n * ```ts\n * import inlineHighlight from '@ckeditor/ckeditor5-typing/src/utils/inlinehighlight';\n *\n * // Make `ck-link_selected` class be applied on an `a` element\n * // whenever the corresponding `linkHref` attribute element is selected.\n * inlineHighlight( editor, 'linkHref', 'a', 'ck-link_selected' );\n * ```\n *\n * @param editor The editor instance.\n * @param attributeName The attribute name to check.\n * @param tagName The tagName of a view item.\n * @param className The class name to apply in the view.\n */\nexport default function inlineHighlight(\n\teditor: Editor,\n\tattributeName: string,\n\ttagName: string,\n\tclassName: string\n): void {\n\tconst view = editor.editing.view;\n\tconst highlightedElements = new Set<ViewElement>();\n\n\t// Adding the class.\n\tview.document.registerPostFixer( writer => {\n\t\tconst selection = editor.model.document.selection;\n\t\tlet changed = false;\n\n\t\tif ( selection.hasAttribute( attributeName ) ) {\n\t\t\tconst modelRange = findAttributeRange(\n\t\t\t\tselection.getFirstPosition()!,\n\t\t\t\tattributeName,\n\t\t\t\tselection.getAttribute( attributeName ),\n\t\t\t\teditor.model\n\t\t\t);\n\t\t\tconst viewRange = editor.editing.mapper.toViewRange( modelRange );\n\n\t\t\t// There might be multiple view elements in the `viewRange`, for example, when the `a` element is\n\t\t\t// broken by a UIElement.\n\t\t\tfor ( const item of viewRange.getItems() ) {\n\t\t\t\tif ( item.is( 'element', tagName ) && !item.hasClass( className ) ) {\n\t\t\t\t\twriter.addClass( className, item );\n\t\t\t\t\thighlightedElements.add( item );\n\t\t\t\t\tchanged = true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn changed;\n\t} );\n\n\t// Removing the class.\n\teditor.conversion.for( 'editingDowncast' ).add( dispatcher => {\n\t\t// Make sure the highlight is removed on every possible event, before conversion is started.\n\t\tdispatcher.on( 'insert', removeHighlight, { priority: 'highest' } );\n\t\tdispatcher.on( 'remove', removeHighlight, { priority: 'highest' } );\n\t\tdispatcher.on( 'attribute', removeHighlight, { priority: 'highest' } );\n\t\tdispatcher.on( 'selection', removeHighlight, { priority: 'highest' } );\n\n\t\tfunction removeHighlight() {\n\t\t\tview.change( writer => {\n\t\t\t\tfor ( const item of highlightedElements.values() ) {\n\t\t\t\t\twriter.removeClass( className, item );\n\t\t\t\t\thighlightedElements.delete( item );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { Command, Editor } from 'ckeditor5/src/core';\n\nimport {\n\tLiveRange,\n\ttype DocumentChangeEvent,\n\ttype Item,\n\ttype Text\n} from 'ckeditor5/src/engine';\n\nimport { first } from 'ckeditor5/src/utils';\n\nimport type Autoformat from './autoformat';\n\nimport type { Delete } from 'ckeditor5/src/typing';\n\n/**\n * The block autoformatting engine. It allows to format various block patterns. For example,\n * it can be configured to turn a paragraph starting with `*` and followed by a space into a list item.\n *\n * The autoformatting operation is integrated with the undo manager,\n * so the autoformatting step can be undone if the user's intention was not to format the text.\n *\n * See the {@link module:autoformat/blockautoformatediting~blockAutoformatEditing `blockAutoformatEditing`} documentation\n * to learn how to create custom block autoformatters. You can also use\n * the {@link module:autoformat/autoformat~Autoformat} feature which enables a set of default autoformatters\n * (lists, headings, bold and italic).\n *\n * @module autoformat/blockautoformatediting\n */\n\n/**\n * Creates a listener triggered on {@link module:engine/model/document~Document#event:change:data `change:data`} event in the document.\n * Calls the callback when inserted text matches the regular expression or the command name\n * if provided instead of the callback.\n *\n * Examples of usage:\n *\n * To convert a paragraph into heading 1 when `- ` is typed, using just the command name:\n *\n * ```ts\n * blockAutoformatEditing( editor, plugin, /^\\- $/, 'heading1' );\n * ```\n *\n * To convert a paragraph into heading 1 when `- ` is typed, using just the callback:\n *\n * ```ts\n * blockAutoformatEditing( editor, plugin, /^\\- $/, ( context ) => {\n * \tconst { match } = context;\n * \tconst headingLevel = match[ 1 ].length;\n *\n * \teditor.execute( 'heading', {\n * \t\tformatId: `heading${ headingLevel }`\n * \t} );\n * } );\n * ```\n *\n * @param editor The editor instance.\n * @param plugin The autoformat plugin instance.\n * @param pattern The regular expression to execute on just inserted text. The regular expression is tested against the text\n * from the beginning until the caret position.\n * @param callbackOrCommand The callback to execute or the command to run when the text is matched.\n * In case of providing the callback, it receives the following parameter:\n * * match RegExp.exec() result of matching the pattern to inserted text.\n */\nexport default function blockAutoformatEditing(\n\teditor: Editor,\n\tplugin: Autoformat,\n\tpattern: RegExp,\n\tcallbackOrCommand: string | ( ( context: { match: RegExpExecArray } ) => unknown )\n): void {\n\tlet callback: ( context: { match: RegExpExecArray } ) => unknown;\n\tlet command: Command | null = null;\n\n\tif ( typeof callbackOrCommand == 'function' ) {\n\t\tcallback = callbackOrCommand;\n\t} else {\n\t\t// We assume that the actual command name was provided.\n\t\tcommand = editor.commands.get( callbackOrCommand )!;\n\n\t\tcallback = () => {\n\t\t\teditor.execute( callbackOrCommand );\n\t\t};\n\t}\n\n\teditor.model.document.on<DocumentChangeEvent>( 'change:data', ( evt, batch ) => {\n\t\tif ( command && !command.isEnabled || !plugin.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst range = first( editor.model.document.selection.getRanges() )!;\n\n\t\tif ( !range.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( batch.isUndo || !batch.isLocal ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst changes = Array.from( editor.model.document.differ.getChanges() );\n\t\tconst entry = changes[ 0 ];\n\n\t\t// Typing is represented by only a single change.\n\t\tif ( changes.length != 1 || entry.type !== 'insert' || entry.name != '$text' || entry.length != 1 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst blockToFormat = entry.position.parent;\n\n\t\t// Block formatting should be disabled in codeBlocks (#5800).\n\t\tif ( blockToFormat.is( 'element', 'codeBlock' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Only list commands and custom callbacks can be applied inside a list.\n\t\tif ( blockToFormat.is( 'element', 'listItem' ) &&\n\t\t\ttypeof callbackOrCommand !== 'function' &&\n\t\t\t![ 'numberedList', 'bulletedList', 'todoList' ].includes( callbackOrCommand )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\t// In case a command is bound, do not re-execute it over an existing block style which would result in a style removal.\n\t\t// Instead, just drop processing so that autoformat trigger text is not lost. E.g. writing \"# \" in a level 1 heading.\n\t\tif ( command && command.value === true ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst firstNode = blockToFormat.getChild( 0 ) as Text;\n\n\t\tconst firstNodeRange = editor.model.createRangeOn( firstNode );\n\n\t\t// Range is only expected to be within or at the very end of the first text node.\n\t\tif ( !firstNodeRange.containsRange( range ) && !range.end.isEqual( firstNodeRange.end ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst match = pattern.exec( firstNode.data.substr( 0, range.end.offset ) );\n\n\t\t// ...and this text node's data match the pattern.\n\t\tif ( !match ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Use enqueueChange to create new batch to separate typing batch from the auto-format changes.\n\t\teditor.model.enqueueChange( writer => {\n\t\t\t// Matched range.\n\t\t\tconst start = writer.createPositionAt( blockToFormat, 0 );\n\t\t\tconst end = writer.createPositionAt( blockToFormat, match[ 0 ].length );\n\t\t\tconst range = new LiveRange( start, end );\n\n\t\t\tconst wasChanged = callback( { match } );\n\n\t\t\t// Remove matched text.\n\t\t\tif ( wasChanged !== false ) {\n\t\t\t\twriter.remove( range );\n\n\t\t\t\tconst selectionRange = editor.model.document.selection.getFirstRange()!;\n\t\t\t\tconst blockRange = writer.createRangeIn( blockToFormat );\n\n\t\t\t\t// If the block is empty and the document selection has been moved when\n\t\t\t\t// applying formatting (e.g. is now in newly created block).\n\t\t\t\tif ( blockToFormat.isEmpty && !blockRange.isEqual( selectionRange ) && !blockRange.containsRange( selectionRange, true ) ) {\n\t\t\t\t\twriter.remove( blockToFormat as Item );\n\t\t\t\t}\n\t\t\t}\n\t\t\trange.detach();\n\n\t\t\teditor.model.enqueueChange( () => {\n\t\t\t\tconst deletePlugin: Delete = editor.plugins.get( 'Delete' );\n\n\t\t\t\tdeletePlugin.requestUndoOnBackspace();\n\t\t\t} );\n\t\t} );\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * The inline autoformatting engine. It allows to format various inline patterns. For example,\n * it can be configured to make \"foo\" bold when typed `**foo**` (the `**` markers will be removed).\n *\n * The autoformatting operation is integrated with the undo manager,\n * so the autoformatting step can be undone if the user's intention was not to format the text.\n *\n * See the {@link module:autoformat/inlineautoformatediting~inlineAutoformatEditing `inlineAutoformatEditing`} documentation\n * to learn how to create custom inline autoformatters. You can also use\n * the {@link module:autoformat/autoformat~Autoformat} feature which enables a set of default autoformatters\n * (lists, headings, bold and italic).\n *\n * @module autoformat/inlineautoformatediting\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport type {\n\tDocumentChangeEvent,\n\tModel,\n\tPosition,\n\tRange,\n\tWriter\n} from 'ckeditor5/src/engine';\nimport type { Delete, LastTextLineData } from 'ckeditor5/src/typing';\n\nimport type Autoformat from './autoformat';\n\nexport type TestCallback = ( text: string ) => {\n\tremove: Array<Array<number>>;\n\tformat: Array<Array<number>>;\n};\n\n/**\n * Enables autoformatting mechanism for a given {@link module:core/editor/editor~Editor}.\n *\n * It formats the matched text by applying the given model attribute or by running the provided formatting callback.\n * On every {@link module:engine/model/document~Document#event:change:data data change} in the model document\n * the autoformatting engine checks the text on the left of the selection\n * and executes the provided action if the text matches given criteria (regular expression or callback).\n *\n * @param editor The editor instance.\n * @param plugin The autoformat plugin instance.\n * @param testRegexpOrCallback The regular expression or callback to execute on text.\n * Provided regular expression *must* have three capture groups. The first and the third capture group\n * should match opening and closing delimiters. The second capture group should match the text to format.\n *\n * ```ts\n * // Matches the `**bold text**` pattern.\n * // There are three capturing groups:\n * // - The first to match the starting `**` delimiter.\n * // - The second to match the text to format.\n * // - The third to match the ending `**` delimiter.\n * inlineAutoformatEditing( editor, plugin, /(\\*\\*)([^\\*]+?)(\\*\\*)$/g, formatCallback );\n * ```\n *\n * When a function is provided instead of the regular expression, it will be executed with the text to match as a parameter.\n * The function should return proper \"ranges\" to delete and format.\n *\n * ```ts\n * {\n * \tremove: [\n * \t\t[ 0, 1 ],\t// Remove the first letter from the given text.\n * \t\t[ 5, 6 ]\t// Remove the 6th letter from the given text.\n * \t],\n * \tformat: [\n * \t\t[ 1, 5 ]\t// Format all letters from 2nd to 5th.\n * \t]\n * }\n * ```\n *\n * @param formatCallback A callback to apply actual formatting.\n * It should return `false` if changes should not be applied (e.g. if a command is disabled).\n *\n * ```ts\n * inlineAutoformatEditing( editor, plugin, /(\\*\\*)([^\\*]+?)(\\*\\*)$/g, ( writer, rangesToFormat ) => {\n * \tconst command = editor.commands.get( 'bold' );\n *\n * \tif ( !command.isEnabled ) {\n * \t\treturn false;\n * \t}\n *\n * \tconst validRanges = editor.model.schema.getValidRanges( rangesToFormat, 'bold' );\n *\n * \tfor ( let range of validRanges ) {\n * \t\twriter.setAttribute( 'bold', true, range );\n * \t}\n * } );\n * ```\n */\nexport default function inlineAutoformatEditing(\n\teditor: Editor,\n\tplugin: Autoformat,\n\ttestRegexpOrCallback: RegExp | TestCallback,\n\tformatCallback: ( writer: Writer, rangesToFormat: Array<Range> ) => boolean | undefined\n): void {\n\tlet regExp: RegExp;\n\tlet testCallback: TestCallback | undefined;\n\n\tif ( testRegexpOrCallback instanceof RegExp ) {\n\t\tregExp = testRegexpOrCallback;\n\t} else {\n\t\ttestCallback = testRegexpOrCallback;\n\t}\n\n\t// A test callback run on changed text.\n\ttestCallback = testCallback || ( text => {\n\t\tlet result: RegExpExecArray | null;\n\t\tconst remove: Array<Array<number>> = [];\n\t\tconst format: Array<Array<number>> = [];\n\n\t\twhile ( ( result = regExp.exec( text ) ) !== null ) {\n\t\t\t// There should be full match and 3 capture groups.\n\t\t\tif ( result && result.length < 4 ) {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tlet {\n\t\t\t\tindex,\n\t\t\t\t'1': leftDel,\n\t\t\t\t'2': content,\n\t\t\t\t'3': rightDel\n\t\t\t} = result;\n\n\t\t\t// Real matched string - there might be some non-capturing groups so we need to recalculate starting index.\n\t\t\tconst found = leftDel + content + rightDel;\n\t\t\tindex += result[ 0 ].length - found.length;\n\n\t\t\t// Start and End offsets of delimiters to remove.\n\t\t\tconst delStart = [\n\t\t\t\tindex,\n\t\t\t\tindex + leftDel.length\n\t\t\t];\n\t\t\tconst delEnd = [\n\t\t\t\tindex + leftDel.length + content.length,\n\t\t\t\tindex + leftDel.length + content.length + rightDel.length\n\t\t\t];\n\n\t\t\tremove.push( delStart );\n\t\t\tremove.push( delEnd );\n\n\t\t\tformat.push( [ index + leftDel.length, index + leftDel.length + content.length ] );\n\t\t}\n\n\t\treturn {\n\t\t\tremove,\n\t\t\tformat\n\t\t};\n\t} );\n\n\teditor.model.document.on<DocumentChangeEvent>( 'change:data', ( evt, batch ) => {\n\t\tif ( batch.isUndo || !batch.isLocal || !plugin.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\t// Do nothing if selection is not collapsed.\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst changes = Array.from( model.document.differ.getChanges() );\n\t\tconst entry = changes[ 0 ];\n\n\t\t// Typing is represented by only a single change.\n\t\tif ( changes.length != 1 || entry.type !== 'insert' || entry.name != '$text' || entry.length != 1 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst focus = selection.focus;\n\t\tconst block = focus!.parent;\n\t\tconst { text, range } = getTextAfterCode( model.createRange( model.createPositionAt( block, 0 ), focus! ), model );\n\t\tconst testOutput = testCallback!( text );\n\t\tconst rangesToFormat = testOutputToRanges( range.start, testOutput.format, model );\n\t\tconst rangesToRemove = testOutputToRanges( range.start, testOutput.remove, model );\n\n\t\tif ( !( rangesToFormat.length && rangesToRemove.length ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Use enqueueChange to create new batch to separate typing batch from the auto-format changes.\n\t\tmodel.enqueueChange( writer => {\n\t\t\t// Apply format.\n\t\t\tconst hasChanged = formatCallback( writer, rangesToFormat );\n\n\t\t\t// Strict check on `false` to have backward compatibility (when callbacks were returning `undefined`).\n\t\t\tif ( hasChanged === false ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Remove delimiters - use reversed order to not mix the offsets while removing.\n\t\t\tfor ( const range of rangesToRemove.reverse() ) {\n\t\t\t\twriter.remove( range );\n\t\t\t}\n\n\t\t\tmodel.enqueueChange( () => {\n\t\t\t\tconst deletePlugin: Delete = editor.plugins.get( 'Delete' );\n\n\t\t\t\tdeletePlugin.requestUndoOnBackspace();\n\t\t\t} );\n\t\t} );\n\t} );\n}\n\n/**\n * Converts output of the test function provided to the inlineAutoformatEditing and converts it to the model ranges\n * inside provided block.\n */\nfunction testOutputToRanges( start: Position, arrays: Array<Array<number>>, model: Model ) {\n\treturn arrays\n\t\t.filter( array => ( array[ 0 ] !== undefined && array[ 1 ] !== undefined ) )\n\t\t.map( array => {\n\t\t\treturn model.createRange( start.getShiftedBy( array[ 0 ] ), start.getShiftedBy( array[ 1 ] ) );\n\t\t} );\n}\n\n/**\n * Returns the last text line after the last code element from the given range.\n * It is similar to {@link module:typing/utils/getlasttextline.getLastTextLine `getLastTextLine()`},\n * but it ignores any text before the last `code`.\n */\nfunction getTextAfterCode( range: Range, model: Model ): LastTextLineData {\n\tlet start = range.start;\n\n\tconst text = Array.from( range.getItems() ).reduce( ( rangeText, node ) => {\n\t\t// Trim text to a last occurrence of an inline element and update range start.\n\t\tif ( !( node.is( '$text' ) || node.is( '$textProxy' ) ) || node.getAttribute( 'code' ) ) {\n\t\t\tstart = model.createPositionAfter( node );\n\n\t\t\treturn '';\n\t\t}\n\n\t\treturn rangeText + node.data;\n\t}, '' );\n\n\treturn { text, range: model.createRange( start, range.end ) };\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module autoformat/autoformat\n */\nimport type { HeadingCommand } from '@ckeditor/ckeditor5-heading';\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport type { Range, Writer } from 'ckeditor5/src/engine';\nimport { Delete } from 'ckeditor5/src/typing';\n\nimport blockAutoformatEditing from './blockautoformatediting';\nimport inlineAutoformatEditing from './inlineautoformatediting';\n\n/**\n * Enables a set of predefined autoformatting actions.\n *\n * For a detailed overview, check the {@glink features/autoformat Autoformatting} feature guide\n * and the {@glink api/autoformat package page}.\n */\nexport default class Autoformat extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ Delete ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Autoformat' {\n\t\treturn 'Autoformat';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tthis._addListAutoformats();\n\t\tthis._addBasicStylesAutoformats();\n\t\tthis._addHeadingAutoformats();\n\t\tthis._addBlockQuoteAutoformats();\n\t\tthis._addCodeBlockAutoformats();\n\t\tthis._addHorizontalLineAutoformats();\n\t}\n\n\t/**\n\t * Adds autoformatting related to the {@link module:list/list~List}.\n\t *\n\t * When typed:\n\t * - `* ` or `- ` &ndash; A paragraph will be changed into a bulleted list.\n\t * - `1. ` or `1) ` &ndash; A paragraph will be changed into a numbered list (\"1\" can be any digit or a list of digits).\n\t * - `[] ` or `[ ] ` &ndash; A paragraph will be changed into a to-do list.\n\t * - `[x] ` or `[ x ] ` &ndash; A paragraph will be changed into a checked to-do list.\n\t */\n\tprivate _addListAutoformats(): void {\n\t\tconst commands = this.editor.commands;\n\n\t\tif ( commands.get( 'bulletedList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^[*-]\\s$/, 'bulletedList' );\n\t\t}\n\n\t\tif ( commands.get( 'numberedList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^1[.|)]\\s$/, 'numberedList' );\n\t\t}\n\n\t\tif ( commands.get( 'todoList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^\\[\\s?\\]\\s$/, 'todoList' );\n\t\t}\n\n\t\tif ( commands.get( 'checkTodoList' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^\\[\\s?x\\s?\\]\\s$/, () => {\n\t\t\t\tthis.editor.execute( 'todoList' );\n\t\t\t\tthis.editor.execute( 'checkTodoList' );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to the {@link module:basic-styles/bold~Bold},\n\t * {@link module:basic-styles/italic~Italic}, {@link module:basic-styles/code~Code}\n\t * and {@link module:basic-styles/strikethrough~Strikethrough}\n\t *\n\t * When typed:\n\t * - `**foobar**` &ndash; `**` characters are removed and `foobar` is set to bold,\n\t * - `__foobar__` &ndash; `__` characters are removed and `foobar` is set to bold,\n\t * - `*foobar*` &ndash; `*` characters are removed and `foobar` is set to italic,\n\t * - `_foobar_` &ndash; `_` characters are removed and `foobar` is set to italic,\n\t * - ``` `foobar` &ndash; ``` ` ``` characters are removed and `foobar` is set to code,\n\t * - `~~foobar~~` &ndash; `~~` characters are removed and `foobar` is set to strikethrough.\n\t */\n\tprivate _addBasicStylesAutoformats(): void {\n\t\tconst commands = this.editor.commands;\n\n\t\tif ( commands.get( 'bold' ) ) {\n\t\t\tconst boldCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'bold' );\n\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(\\*\\*)([^*]+)(\\*\\*)$/g, boldCallback );\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(__)([^_]+)(__)$/g, boldCallback );\n\t\t}\n\n\t\tif ( commands.get( 'italic' ) ) {\n\t\t\tconst italicCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'italic' );\n\n\t\t\t// The italic autoformatter cannot be triggered by the bold markers, so we need to check the\n\t\t\t// text before the pattern (e.g. `(?:^|[^\\*])`).\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(\\*)([^*_]+)(\\*)$/g, italicCallback );\n\t\t\tinlineAutoformatEditing( this.editor, this, /(?:^|\\s)(_)([^_]+)(_)$/g, italicCallback );\n\t\t}\n\n\t\tif ( commands.get( 'code' ) ) {\n\t\t\tconst codeCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'code' );\n\n\t\t\tinlineAutoformatEditing( this.editor, this, /(`)([^`]+)(`)$/g, codeCallback );\n\t\t}\n\n\t\tif ( commands.get( 'strikethrough' ) ) {\n\t\t\tconst strikethroughCallback = getCallbackFunctionForInlineAutoformat( this.editor, 'strikethrough' );\n\n\t\t\tinlineAutoformatEditing( this.editor, this, /(~~)([^~]+)(~~)$/g, strikethroughCallback );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:heading/heading~Heading}.\n\t *\n\t * It is using a number at the end of the command name to associate it with the proper trigger:\n\t *\n\t * * `heading` with a `heading1` value will be executed when typing `#`,\n\t * * `heading` with a `heading2` value will be executed when typing `##`,\n\t * * ... up to `heading6` for `######`.\n\t */\n\tprivate _addHeadingAutoformats(): void {\n\t\tconst command: HeadingCommand | undefined = this.editor.commands.get( 'heading' );\n\n\t\tif ( command ) {\n\t\t\tcommand.modelElements\n\t\t\t\t.filter( name => name.match( /^heading[1-6]$/ ) )\n\t\t\t\t.forEach( modelName => {\n\t\t\t\t\tconst level = modelName[ 7 ];\n\t\t\t\t\tconst pattern = new RegExp( `^(#{${ level }})\\\\s$` );\n\n\t\t\t\t\tblockAutoformatEditing( this.editor, this, pattern, () => {\n\t\t\t\t\t\t// Should only be active if command is enabled and heading style associated with pattern is inactive.\n\t\t\t\t\t\tif ( !command.isEnabled || command.value === modelName ) {\n\t\t\t\t\t\t\treturn false;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tthis.editor.execute( 'heading', { value: modelName } );\n\t\t\t\t\t} );\n\t\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:block-quote/blockquote~BlockQuote}.\n\t *\n\t * When typed:\n\t * * `> ` &ndash; A paragraph will be changed to a block quote.\n\t */\n\tprivate _addBlockQuoteAutoformats(): void {\n\t\tif ( this.editor.commands.get( 'blockQuote' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^>\\s$/, 'blockQuote' );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:code-block/codeblock~CodeBlock}.\n\t *\n\t * When typed:\n\t * - `` ``` `` &ndash; A paragraph will be changed to a code block.\n\t */\n\tprivate _addCodeBlockAutoformats(): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\tif ( editor.commands.get( 'codeBlock' ) ) {\n\t\t\tblockAutoformatEditing( editor, this, /^```$/, () => {\n\t\t\t\tif ( selection.getFirstPosition()!.parent.is( 'element', 'listItem' ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t\tthis.editor.execute( 'codeBlock', {\n\t\t\t\t\tusePreviousLanguageChoice: true\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds autoformatting related to {@link module:horizontal-line/horizontalline~HorizontalLine}.\n\t *\n\t * When typed:\n\t * - `` --- `` &ndash; Will be replaced with a horizontal line.\n\t */\n\tprivate _addHorizontalLineAutoformats(): void {\n\t\tif ( this.editor.commands.get( 'horizontalLine' ) ) {\n\t\t\tblockAutoformatEditing( this.editor, this, /^---$/, 'horizontalLine' );\n\t\t}\n\t}\n}\n\n/**\n * Helper function for getting `inlineAutoformatEditing` callbacks that checks if command is enabled.\n */\nfunction getCallbackFunctionForInlineAutoformat( editor: Editor, attributeKey: string ) {\n\treturn ( writer: Writer, rangesToFormat: Array<Range> ): boolean | undefined => {\n\t\tconst command = editor.commands.get( attributeKey )!;\n\n\t\tif ( !command.isEnabled ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst validRanges = editor.model.schema.getValidRanges( rangesToFormat, attributeKey );\n\n\t\tfor ( const range of validRanges ) {\n\t\t\twriter.setAttribute( attributeKey, true, range );\n\t\t}\n\n\t\t// After applying attribute to the text, remove given attribute from the selection.\n\t\t// This way user is able to type a text without attribute used by auto formatter.\n\t\twriter.removeSelectionAttribute( attributeKey );\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/attributecommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\n\n/**\n * An extension of the base {@link module:core/command~Command} class, which provides utilities for a command\n * that toggles a single attribute on a text or an element.\n *\n * `AttributeCommand` uses {@link module:engine/model/document~Document#selection}\n * to decide which nodes (if any) should be changed, and applies or removes the attribute from them.\n *\n * The command checks the {@link module:engine/model/model~Model#schema} to decide if it can be enabled\n * for the current selection and to which nodes the attribute can be applied.\n */\nexport default class AttributeCommand extends Command {\n\t/**\n\t * Flag indicating whether the command is active. The command is active when the\n\t * {@link module:engine/model/selection~Selection#hasAttribute selection has the attribute} which means that:\n\t *\n\t * * If the selection is not empty &ndash; That the attribute is set on the first node in the selection that allows this attribute.\n\t * * If the selection is empty &ndash; That the selection has the attribute itself (which means that newly typed\n\t * text will have this attribute, too).\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: boolean;\n\n\t/**\n\t * The attribute that will be set by the command.\n\t */\n\tpublic readonly attributeKey: string;\n\n\t/**\n\t * @param attributeKey Attribute that will be set by the command.\n\t */\n\tconstructor( editor: Editor, attributeKey: string ) {\n\t\tsuper( editor );\n\n\t\tthis.attributeKey = attributeKey;\n\t}\n\n\t/**\n\t * Updates the command's {@link #value} and {@link #isEnabled} based on the current selection.\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.value = this._getValueFromFirstAllowedNode();\n\t\tthis.isEnabled = model.schema.checkAttributeInSelection( doc.selection, this.attributeKey );\n\t}\n\n\t/**\n\t * Executes the command &mdash; applies the attribute to the selection or removes it from the selection.\n\t *\n\t * If the command is active (`value == true`), it will remove attributes. Otherwise, it will set attributes.\n\t *\n\t * The execution result differs, depending on the {@link module:engine/model/document~Document#selection}:\n\t *\n\t * * If the selection is on a range, the command applies the attribute to all nodes in that range\n\t * (if they are allowed to have this attribute by the {@link module:engine/model/schema~Schema schema}).\n\t * * If the selection is collapsed in a non-empty node, the command applies the attribute to the\n\t * {@link module:engine/model/document~Document#selection} itself (note that typed characters copy attributes from the selection).\n\t * * If the selection is collapsed in an empty node, the command applies the attribute to the parent node of the selection (note\n\t * that the selection inherits all attributes from a node if it is in an empty node).\n\t *\n\t * @fires execute\n\t * @param options Command options.\n\t * @param options.forceValue If set, it will force the command behavior. If `true`,\n\t * the command will apply the attribute, otherwise the command will remove the attribute.\n\t * If not set, the command will look for its current value to decide what it should do.\n\t */\n\tpublic override execute( options: { forceValue?: boolean } = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst selection = doc.selection;\n\t\tconst value = ( options.forceValue === undefined ) ? !this.value : options.forceValue;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tif ( value ) {\n\t\t\t\t\twriter.setSelectionAttribute( this.attributeKey, true );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeSelectionAttribute( this.attributeKey );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst ranges = model.schema.getValidRanges( selection.getRanges(), this.attributeKey );\n\n\t\t\t\tfor ( const range of ranges ) {\n\t\t\t\t\tif ( value ) {\n\t\t\t\t\t\twriter.setAttribute( this.attributeKey, value, range );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.removeAttribute( this.attributeKey, range );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the attribute value of the first node in the selection that allows the attribute.\n\t * For the collapsed selection returns the selection attribute.\n\t *\n\t * @returns The attribute value.\n\t */\n\tprivate _getValueFromFirstAllowedNode(): boolean {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tif ( selection.isCollapsed ) {\n\t\t\treturn selection.hasAttribute( this.attributeKey );\n\t\t}\n\n\t\tfor ( const range of selection.getRanges() ) {\n\t\t\tfor ( const item of range.getItems() ) {\n\t\t\t\tif ( schema.checkAttribute( item, this.attributeKey ) ) {\n\t\t\t\t\treturn item.hasAttribute( this.attributeKey );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/bold/boldediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst BOLD = 'bold';\n\n/**\n * The bold editing feature.\n *\n * It registers the `'bold'` command and introduces the `bold` attribute in the model which renders to the view\n * as a `<strong>` element.\n */\nexport default class BoldEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BoldEditing' {\n\t\treturn 'BoldEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\t// Allow bold attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: BOLD } );\n\t\teditor.model.schema.setAttributeProperties( BOLD, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Build converter from model to view for data and editing pipelines.\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: BOLD,\n\t\t\tview: 'strong',\n\t\t\tupcastAlso: [\n\t\t\t\t'b',\n\t\t\t\tviewElement => {\n\t\t\t\t\tconst fontWeight = viewElement.getStyle( 'font-weight' );\n\n\t\t\t\t\tif ( !fontWeight ) {\n\t\t\t\t\t\treturn null;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Value of the `font-weight` attribute can be defined as a string or a number.\n\t\t\t\t\tif ( fontWeight == 'bold' || Number( fontWeight ) >= 600 ) {\n\t\t\t\t\t\treturn {\n\t\t\t\t\t\t\tname: true,\n\t\t\t\t\t\t\tstyles: [ 'font-weight' ]\n\t\t\t\t\t\t};\n\t\t\t\t\t}\n\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create bold command.\n\t\teditor.commands.add( BOLD, new AttributeCommand( editor, BOLD ) );\n\n\t\t// Set the Ctrl+B keystroke.\n\t\teditor.keystrokes.set( 'CTRL+B', BOLD );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/bold/boldui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type AttributeCommand from '../attributecommand';\n\nconst BOLD = 'bold';\n\n/**\n * The bold UI feature. It introduces the Bold button.\n */\nexport default class BoldUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BoldUI' {\n\t\treturn 'BoldUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add bold button to feature components.\n\t\teditor.ui.componentFactory.add( BOLD, locale => {\n\t\t\tconst command: AttributeCommand = editor.commands.get( BOLD )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Bold' ),\n\t\t\t\ticon: icons.bold,\n\t\t\t\tkeystroke: 'CTRL+B',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( BOLD );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/italic/italicediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst ITALIC = 'italic';\n\n/**\n * The italic editing feature.\n *\n * It registers the `'italic'` command, the <kbd>Ctrl+I</kbd> keystroke and introduces the `italic` attribute in the model\n * which renders to the view as an `<i>` element.\n */\nexport default class ItalicEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ItalicEditing' {\n\t\treturn 'ItalicEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Allow italic attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: ITALIC } );\n\t\teditor.model.schema.setAttributeProperties( ITALIC, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: ITALIC,\n\t\t\tview: 'i',\n\t\t\tupcastAlso: [\n\t\t\t\t'em',\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'font-style': 'italic'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create italic command.\n\t\teditor.commands.add( ITALIC, new AttributeCommand( editor, ITALIC ) );\n\n\t\t// Set the Ctrl+I keystroke.\n\t\teditor.keystrokes.set( 'CTRL+I', ITALIC );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m9.586 14.633.021.004c-.036.335.095.655.393.962.082.083.173.15.274.201h1.474a.6.6 0 1 1 0 1.2H5.304a.6.6 0 0 1 0-1.2h1.15c.474-.07.809-.182 1.005-.334.157-.122.291-.32.404-.597l2.416-9.55a1.053 1.053 0 0 0-.281-.823 1.12 1.12 0 0 0-.442-.296H8.15a.6.6 0 0 1 0-1.2h6.443a.6.6 0 1 1 0 1.2h-1.195c-.376.056-.65.155-.823.296-.215.175-.423.439-.623.79l-2.366 9.347z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/italic/italicui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type AttributeCommand from '../attributecommand';\n\nimport italicIcon from '../../theme/icons/italic.svg';\n\nconst ITALIC = 'italic';\n\n/**\n * The italic UI feature. It introduces the Italic button.\n */\nexport default class ItalicUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ItalicUI' {\n\t\treturn 'ItalicUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add bold button to feature components.\n\t\teditor.ui.componentFactory.add( ITALIC, locale => {\n\t\t\tconst command: AttributeCommand = editor.commands.get( ITALIC )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Italic' ),\n\t\t\t\ticon: italicIcon,\n\t\t\t\tkeystroke: 'CTRL+I',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( ITALIC );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/superscript/superscriptediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst SUPERSCRIPT = 'superscript';\n\n/**\n * The superscript editing feature.\n *\n * It registers the `super` command and introduces the `super` attribute in the model which renders to the view\n * as a `<super>` element.\n */\nexport default class SuperscriptEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SuperscriptEditing' {\n\t\treturn 'SuperscriptEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\t// Allow super attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: SUPERSCRIPT } );\n\t\teditor.model.schema.setAttributeProperties( SUPERSCRIPT, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Build converter from model to view for data and editing pipelines.\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: SUPERSCRIPT,\n\t\t\tview: 'sup',\n\t\t\tupcastAlso: [\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'vertical-align': 'super'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create super command.\n\t\teditor.commands.add( SUPERSCRIPT, new AttributeCommand( editor, SUPERSCRIPT ) );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M15.677 8.678h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 1-.159.393c-.105.108-.266.162-.48.162h-3.594c-.245 0-.435-.066-.572-.197a.621.621 0 0 1-.205-.463c0-.114.044-.265.132-.453a1.62 1.62 0 0 1 .288-.444c.433-.436.824-.81 1.172-1.122.348-.312.597-.517.747-.615.267-.183.49-.368.667-.553.177-.185.312-.375.405-.57.093-.194.139-.384.139-.57a1.008 1.008 0 0 0-.554-.917 1.197 1.197 0 0 0-.56-.133c-.426 0-.761.182-1.005.546a2.332 2.332 0 0 0-.164.39 1.609 1.609 0 0 1-.258.488c-.096.114-.237.17-.423.17a.558.558 0 0 1-.405-.156.568.568 0 0 1-.161-.427c0-.218.05-.446.151-.683.101-.238.252-.453.452-.646s.454-.349.762-.467a2.998 2.998 0 0 1 1.081-.178c.498 0 .923.076 1.274.228a1.916 1.916 0 0 1 1.004 1.032 1.984 1.984 0 0 1-.156 1.794c-.2.32-.405.572-.613.754-.208.182-.558.468-1.048.857-.49.39-.826.691-1.008.906a2.703 2.703 0 0 0-.24.309zM7.03 10.349l3.818-3.819a.8.8 0 1 1 1.132 1.132L8.16 11.48l3.819 3.818a.8.8 0 1 1-1.132 1.132L7.03 12.61l-3.818 3.82a.8.8 0 1 1-1.132-1.132L5.9 11.48 2.08 7.662A.8.8 0 1 1 3.212 6.53l3.818 3.82z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/superscript/superscriptui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type AttributeCommand from '../attributecommand';\n\nimport superscriptIcon from '../../theme/icons/superscript.svg';\n\nconst SUPERSCRIPT = 'superscript';\n\n/**\n * The superscript UI feature. It introduces the Superscript button.\n */\nexport default class SuperscriptUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SuperscriptUI' {\n\t\treturn 'SuperscriptUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add superscript button to feature components.\n\t\teditor.ui.componentFactory.add( SUPERSCRIPT, locale => {\n\t\t\tconst command: AttributeCommand = editor.commands.get( SUPERSCRIPT )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Superscript' ),\n\t\t\t\ticon: superscriptIcon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( SUPERSCRIPT );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/subscript/subscriptediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst SUBSCRIPT = 'subscript';\n\n/**\n * The subscript editing feature.\n *\n * It registers the `sub` command and introduces the `sub` attribute in the model which renders to the view\n * as a `<sub>` element.\n */\nexport default class SubscriptEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SubscriptEditing' {\n\t\treturn 'SubscriptEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\t// Allow sub attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: SUBSCRIPT } );\n\t\teditor.model.schema.setAttributeProperties( SUBSCRIPT, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Build converter from model to view for data and editing pipelines.\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: SUBSCRIPT,\n\t\t\tview: 'sub',\n\t\t\tupcastAlso: [\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'vertical-align': 'sub'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create sub command.\n\t\teditor.commands.add( SUBSCRIPT, new AttributeCommand( editor, SUBSCRIPT ) );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m7.03 10.349 3.818-3.819a.8.8 0 1 1 1.132 1.132L8.16 11.48l3.819 3.818a.8.8 0 1 1-1.132 1.132L7.03 12.61l-3.818 3.82a.8.8 0 1 1-1.132-1.132L5.9 11.48 2.08 7.662A.8.8 0 1 1 3.212 6.53l3.818 3.82zm8.147 7.829h2.549c.254 0 .447.05.58.152a.49.49 0 0 1 .201.413.54.54 0 0 1-.159.393c-.105.108-.266.162-.48.162h-3.594c-.245 0-.435-.066-.572-.197a.621.621 0 0 1-.205-.463c0-.114.044-.265.132-.453a1.62 1.62 0 0 1 .288-.444c.433-.436.824-.81 1.172-1.122.348-.312.597-.517.747-.615.267-.183.49-.368.667-.553.177-.185.312-.375.405-.57.093-.194.139-.384.139-.57a1.008 1.008 0 0 0-.554-.917 1.197 1.197 0 0 0-.56-.133c-.426 0-.761.182-1.005.546a2.332 2.332 0 0 0-.164.39 1.609 1.609 0 0 1-.258.488c-.096.114-.237.17-.423.17a.558.558 0 0 1-.405-.156.568.568 0 0 1-.161-.427c0-.218.05-.446.151-.683.101-.238.252-.453.452-.646s.454-.349.762-.467a2.998 2.998 0 0 1 1.081-.178c.498 0 .923.076 1.274.228a1.916 1.916 0 0 1 1.004 1.032 1.984 1.984 0 0 1-.156 1.794c-.2.32-.405.572-.613.754-.208.182-.558.468-1.048.857-.49.39-.826.691-1.008.906a2.703 2.703 0 0 0-.24.309z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/subscript/subscriptui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type AttributeCommand from '../attributecommand';\n\nimport subscriptIcon from '../../theme/icons/subscript.svg';\n\nconst SUBSCRIPT = 'subscript';\n\n/**\n * The subscript UI feature. It introduces the Subscript button.\n */\nexport default class SubscriptUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SubscriptUI' {\n\t\treturn 'SubscriptUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add subscript button to feature components.\n\t\teditor.ui.componentFactory.add( SUBSCRIPT, locale => {\n\t\t\tconst command: AttributeCommand = editor.commands.get( SUBSCRIPT )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Subscript' ),\n\t\t\t\ticon: subscriptIcon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( SUBSCRIPT );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/underline/underlineediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst UNDERLINE = 'underline';\n\n/**\n * The underline editing feature.\n *\n * It registers the `'underline'` command, the <kbd>Ctrl+U</kbd> keystroke\n * and introduces the `underline` attribute in the model which renders to the view as an `<u>` element.\n */\nexport default class UnderlineEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'UnderlineEditing' {\n\t\treturn 'UnderlineEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Allow strikethrough attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: UNDERLINE } );\n\t\teditor.model.schema.setAttributeProperties( UNDERLINE, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: UNDERLINE,\n\t\t\tview: 'u',\n\t\t\tupcastAlso: {\n\t\t\t\tstyles: {\n\t\t\t\t\t'text-decoration': 'underline'\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Create underline command.\n\t\teditor.commands.add( UNDERLINE, new AttributeCommand( editor, UNDERLINE ) );\n\n\t\t// Set the Ctrl+U keystroke.\n\t\teditor.keystrokes.set( 'CTRL+U', 'underline' );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 18v-1.5h14V18zm2.2-8V3.6c0-.4.4-.6.8-.6.3 0 .7.2.7.6v6.2c0 2 1.3 2.8 3.2 2.8 1.9 0 3.4-.9 3.4-2.9V3.6c0-.3.4-.5.8-.5.3 0 .7.2.7.5V10c0 2.7-2.2 4-4.9 4-2.6 0-4.7-1.2-4.7-4z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/underline/underlineui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type AttributeCommand from '../attributecommand';\n\nimport underlineIcon from '../../theme/icons/underline.svg';\n\nconst UNDERLINE = 'underline';\n\n/**\n * The underline UI feature. It introduces the Underline button.\n */\nexport default class UnderlineUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'UnderlineUI' {\n\t\treturn 'UnderlineUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add bold button to feature components.\n\t\teditor.ui.componentFactory.add( UNDERLINE, locale => {\n\t\t\tconst command: AttributeCommand = editor.commands.get( UNDERLINE )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Underline' ),\n\t\t\t\ticon: underlineIcon,\n\t\t\t\tkeystroke: 'CTRL+U',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( UNDERLINE );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/strikethrough/strikethroughediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport AttributeCommand from '../attributecommand';\n\nconst STRIKETHROUGH = 'strikethrough';\n\n/**\n * The strikethrough editing feature.\n *\n * It registers the `'strikethrough'` command, the <kbd>Ctrl+Shift+X</kbd> keystroke and introduces the\n * `strikethroughsthrough` attribute in the model which renders to the view\n * as a `<s>` element.\n */\nexport default class StrikethroughEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'StrikethroughEditing' {\n\t\treturn 'StrikethroughEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Allow strikethrough attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: STRIKETHROUGH } );\n\t\teditor.model.schema.setAttributeProperties( STRIKETHROUGH, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: STRIKETHROUGH,\n\t\t\tview: 's',\n\t\t\tupcastAlso: [\n\t\t\t\t'del',\n\t\t\t\t'strike',\n\t\t\t\t{\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\t'text-decoration': 'line-through'\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\n\t\t// Create strikethrough command.\n\t\teditor.commands.add( STRIKETHROUGH, new AttributeCommand( editor, STRIKETHROUGH ) );\n\n\t\t// Set the Ctrl+Shift+X keystroke.\n\t\teditor.keystrokes.set( 'CTRL+SHIFT+X', 'strikethrough' );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M7 16.4c-.8-.4-1.5-.9-2.2-1.5a.6.6 0 0 1-.2-.5l.3-.6h1c1 1.2 2.1 1.7 3.7 1.7 1 0 1.8-.3 2.3-.6.6-.4.6-1.2.6-1.3.2-1.2-.9-2.1-.9-2.1h2.1c.3.7.4 1.2.4 1.7v.8l-.6 1.2c-.6.8-1.1 1-1.6 1.2a6 6 0 0 1-2.4.6c-1 0-1.8-.3-2.5-.6zM6.8 9 6 8.3c-.4-.5-.5-.8-.5-1.6 0-.7.1-1.3.5-1.8.4-.6 1-1 1.6-1.3a6.3 6.3 0 0 1 4.7 0 4 4 0 0 1 1.7 1l.3.7c0 .1.2.4-.2.7-.4.2-.9.1-1 0a3 3 0 0 0-1.2-1c-.4-.2-1-.3-2-.4-.7 0-1.4.2-2 .6-.8.6-1 .8-1 1.5 0 .8.5 1 1.2 1.5.6.4 1.1.7 1.9 1H6.8z\\\"/><path d=\\\"M3 10.5V9h14v1.5z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/strikethrough/strikethroughui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type AttributeCommand from '../attributecommand';\n\nimport strikethroughIcon from '../../theme/icons/strikethrough.svg';\n\nconst STRIKETHROUGH = 'strikethrough';\n\n/**\n * The strikethrough UI feature. It introduces the Strikethrough button.\n */\nexport default class StrikethroughUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'StrikethroughUI' {\n\t\treturn 'StrikethroughUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add strikethrough button to feature components.\n\t\teditor.ui.componentFactory.add( STRIKETHROUGH, locale => {\n\t\t\tconst command: AttributeCommand = editor.commands.get( STRIKETHROUGH )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Strikethrough' ),\n\t\t\t\ticon: strikethroughIcon,\n\t\t\t\tkeystroke: 'CTRL+SHIFT+X',\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( STRIKETHROUGH );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/code/codeediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { TwoStepCaretMovement, inlineHighlight } from 'ckeditor5/src/typing';\n\nimport AttributeCommand from '../attributecommand';\n\nconst CODE = 'code';\nconst HIGHLIGHT_CLASS = 'ck-code_selected';\n\n/**\n * The code editing feature.\n *\n * It registers the `'code'` command and introduces the `code` attribute in the model which renders to the view\n * as a `<code>` element.\n */\nexport default class CodeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'CodeEditing' {\n\t\treturn 'CodeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TwoStepCaretMovement ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Allow code attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: CODE } );\n\t\teditor.model.schema.setAttributeProperties( CODE, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: false\n\t\t} );\n\n\t\teditor.conversion.attributeToElement( {\n\t\t\tmodel: CODE,\n\t\t\tview: 'code',\n\t\t\tupcastAlso: {\n\t\t\t\tstyles: {\n\t\t\t\t\t'word-wrap': 'break-word'\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Create code command.\n\t\teditor.commands.add( CODE, new AttributeCommand( editor, CODE ) );\n\n\t\t// Enable two-step caret movement for `code` attribute.\n\t\teditor.plugins.get( TwoStepCaretMovement ).registerAttribute( CODE );\n\n\t\t// Setup highlight over selected element.\n\t\tinlineHighlight( editor, CODE, 'code', HIGHLIGHT_CLASS );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./code.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/code/codeui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport type AttributeCommand from '../attributecommand';\n\nimport codeIcon from '../../theme/icons/code.svg';\n\nimport '../../theme/code.css';\n\nconst CODE = 'code';\n\n/**\n * The code UI feature. It introduces the Code button.\n */\nexport default class CodeUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'CodeUI' {\n\t\treturn 'CodeUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add code button to feature components.\n\t\teditor.ui.componentFactory.add( CODE, locale => {\n\t\t\tconst command: AttributeCommand = editor.commands.get( CODE )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Code' ),\n\t\t\t\ticon: codeIcon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( CODE );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m12.5 5.7 5.2 3.9v1.3l-5.6 4c-.1.2-.3.2-.5.2-.3-.1-.6-.7-.6-1l.3-.4 4.7-3.5L11.5 7l-.2-.2c-.1-.3-.1-.6 0-.8.2-.2.5-.4.8-.4a.8.8 0 0 1 .4.1zm-5.2 0L2 9.6v1.3l5.6 4c.1.2.3.2.5.2.3-.1.7-.7.6-1 0-.1 0-.3-.2-.4l-5-3.5L8.2 7l.2-.2c.1-.3.1-.6 0-.8-.2-.2-.5-.4-.8-.4a.8.8 0 0 0-.3.1z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/utils\n */\n\nimport type { Schema } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Returns attributes that should be preserved on the enter keystroke.\n *\n * Filtering is realized based on `copyOnEnter` attribute property. Read more about attribute properties\n * {@link module:engine/model/schema~Schema#setAttributeProperties here}.\n *\n * @param schema Model's schema.\n * @param allAttributes Attributes to filter.\n */\nexport function* getCopyOnEnterAttributes(\n\tschema: Schema,\n\tallAttributes: Iterable<[ string, unknown ]>\n): IterableIterator<[ string, unknown ]> {\n\tfor ( const attribute of allAttributes ) {\n\t\tif ( attribute && schema.getAttributeProperties( attribute[ 0 ] ).copyOnEnter ) {\n\t\t\tyield attribute;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/entercommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport { getCopyOnEnterAttributes } from './utils';\n\nimport type {\n\tElement,\n\tPosition,\n\tWriter\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * Enter command used by the {@link module:enter/enter~Enter Enter feature} to handle the <kbd>Enter</kbd> keystroke.\n */\nexport default class EnterCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\tthis.enterBlock( writer );\n\t\t\tthis.fire<EnterCommandAfterExecuteEvent>( 'afterExecute', { writer } );\n\t\t} );\n\t}\n\n\t/**\n\t * Splits a block where the document selection is placed, in the way how the <kbd>Enter</kbd> key is expected to work:\n\t *\n\t * ```\n\t * <p>Foo[]bar</p>   ->   <p>Foo</p><p>[]bar</p>\n\t * <p>Foobar[]</p>   ->   <p>Foobar</p><p>[]</p>\n\t * <p>Fo[ob]ar</p>   ->   <p>Fo</p><p>[]ar</p>\n\t * ```\n\t *\n\t * In some cases, the split will not happen:\n\t *\n\t * ```\n\t * // The selection parent is a limit element:\n\t * <figcaption>A[bc]d</figcaption>   ->   <figcaption>A[]d</figcaption>\n\t *\n\t * // The selection spans over multiple elements:\n\t * <h>x[x</h><p>y]y<p>   ->   <h>x</h><p>[]y</p>\n\t * ```\n\t *\n\t * @param writer Writer to use when performing the enter action.\n\t * @returns Boolean indicating if the block was split.\n\t */\n\tpublic enterBlock( writer: Writer ): boolean {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst schema = model.schema;\n\t\tconst isSelectionEmpty = selection.isCollapsed;\n\t\tconst range = selection.getFirstRange()!;\n\t\tconst startElement = range.start.parent as Element;\n\t\tconst endElement = range.end.parent as Element;\n\n\t\t// Don't touch the roots and other limit elements.\n\t\tif ( schema.isLimit( startElement ) || schema.isLimit( endElement ) ) {\n\t\t\t// Delete the selected content but only if inside a single limit element.\n\t\t\t// Abort, when crossing limit elements boundary (e.g. <limit1>x[x</limit1>donttouchme<limit2>y]y</limit2>).\n\t\t\t// This is an edge case and it's hard to tell what should actually happen because such a selection\n\t\t\t// is not entirely valid.\n\t\t\tif ( !isSelectionEmpty && startElement == endElement ) {\n\t\t\t\tmodel.deleteContent( selection );\n\t\t\t}\n\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( isSelectionEmpty ) {\n\t\t\tconst attributesToCopy = getCopyOnEnterAttributes( writer.model.schema, selection.getAttributes() );\n\n\t\t\tsplitBlock( writer, range.start );\n\t\t\twriter.setSelectionAttribute( attributesToCopy );\n\n\t\t\treturn true;\n\t\t} else {\n\t\t\tconst leaveUnmerged = !( range.start.isAtStart && range.end.isAtEnd );\n\t\t\tconst isContainedWithinOneElement = ( startElement == endElement );\n\n\t\t\tmodel.deleteContent( selection, { leaveUnmerged } );\n\n\t\t\tif ( leaveUnmerged ) {\n\t\t\t\t// Partially selected elements.\n\t\t\t\t//\n\t\t\t\t// <h>x[xx]x</h>\t\t-> <h>x^x</h>\t\t\t-> <h>x</h><h>^x</h>\n\t\t\t\tif ( isContainedWithinOneElement ) {\n\t\t\t\t\tsplitBlock( writer, selection.focus! );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t\t// Selection over multiple elements.\n\t\t\t\t//\n\t\t\t\t// <h>x[x</h><p>y]y<p>\t-> <h>x^</h><p>y</p>\t-> <h>x</h><p>^y</p>\n\t\t\t\telse {\n\t\t\t\t\twriter.setSelection( endElement, 0 );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n}\n\n/**\n * Fired after the the {@link module:enter/entercommand~EnterCommand} is finished executing.\n *\n * @eventName ~EnterCommand#afterExecute\n */\nexport type EnterCommandAfterExecuteEvent = {\n\tname: 'afterExecute';\n\targs: [ { writer: Writer } ];\n};\n\nfunction splitBlock( writer: Writer, splitPos: Position ): void {\n\twriter.split( splitPos );\n\twriter.setSelection( splitPos.parent.nextSibling!, 0 );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/enterobserver\n */\n\nimport {\n\tObserver,\n\tDomEventData,\n\tBubblingEventInfo,\n\ttype View,\n\ttype ViewDocumentInputEvent,\n\ttype BubblingEvent,\n\ttype ViewDocumentKeyDownEvent\n} from '@ckeditor/ckeditor5-engine';\n\nimport { env } from '@ckeditor/ckeditor5-utils';\n\nconst ENTER_EVENT_TYPES: Record<string, { isSoft: boolean }> = {\n\tinsertParagraph: { isSoft: false },\n\tinsertLineBreak: { isSoft: true }\n};\n\n/**\n * Enter observer introduces the {@link module:engine/view/document~Document#event:enter `Document#enter`} event.\n */\nexport default class EnterObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst doc = this.document;\n\t\tlet shiftPressed = false;\n\n\t\tdoc.on<ViewDocumentKeyDownEvent>( 'keydown', ( evt, data ) => {\n\t\t\tshiftPressed = data.shiftKey;\n\t\t} );\n\n\t\tdoc.on<ViewDocumentInputEvent>( 'beforeinput', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet inputType = data.inputType;\n\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/13321.\n\t\t\tif ( env.isSafari && shiftPressed && inputType == 'insertParagraph' ) {\n\t\t\t\tinputType = 'insertLineBreak';\n\t\t\t}\n\n\t\t\tconst domEvent = data.domEvent;\n\t\t\tconst enterEventSpec = ENTER_EVENT_TYPES[ inputType ];\n\n\t\t\tif ( !enterEventSpec ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst event = new BubblingEventInfo( doc, 'enter', data.targetRanges[ 0 ] );\n\n\t\t\tdoc.fire( event, new DomEventData( view, domEvent, {\n\t\t\t\tisSoft: enterEventSpec.isSoft\n\t\t\t} ) );\n\n\t\t\t// Stop `beforeinput` event if `enter` event was stopped.\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/753\n\t\t\tif ( event.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe(): void {}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic stopObserving(): void {}\n}\n\n/**\n * Fired when the user presses the <kbd>Enter</kbd> key.\n *\n * Note: This event is fired by the {@link module:enter/enterobserver~EnterObserver observer}\n * (usually registered by the {@link module:enter/enter~Enter Enter feature} and\n * {@link module:enter/shiftenter~ShiftEnter ShiftEnter feature}).\n *\n * @eventName module:engine/view/document~Document#enter\n */\nexport type ViewDocumentEnterEvent = BubblingEvent<{\n\tname: 'enter';\n\targs: [ EnterEventData ];\n}>;\n\nexport interface EnterEventData extends DomEventData<InputEvent> {\n\n\t/**\n\t * Whether it is a soft enter (<kbd>Shift</kbd>+<kbd>Enter</kbd>) or a hard enter (<kbd>Enter</kbd>).\n\t */\n\tisSoft: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/enter\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport EnterCommand from './entercommand';\nimport EnterObserver, { type ViewDocumentEnterEvent } from './enterobserver';\n\n/**\n * This plugin handles the <kbd>Enter</kbd> keystroke (hard line break) in the editor.\n *\n * See also the {@link module:enter/shiftenter~ShiftEnter} plugin.\n *\n * For more information about this feature see the {@glink api/enter package page}.\n */\nexport default class Enter extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Enter' {\n\t\treturn 'Enter';\n\t}\n\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tview.addObserver( EnterObserver );\n\n\t\teditor.commands.add( 'enter', new EnterCommand( editor ) );\n\n\t\tthis.listenTo<ViewDocumentEnterEvent>( viewDocument, 'enter', ( evt, data ) => {\n\t\t\t// When not in composition, we handle the action, so prevent the default one.\n\t\t\t// When in composition, it's the browser who modify the DOM (renderer is disabled).\n\t\t\tif ( !viewDocument.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\t// The soft enter key is handled by the ShiftEnter plugin.\n\t\t\tif ( data.isSoft ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.execute( 'enter' );\n\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/shiftentercommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport { getCopyOnEnterAttributes } from './utils';\n\nimport type {\n\tDocumentSelection,\n\tModel,\n\tPosition,\n\tSchema,\n\tElement,\n\tWriter\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * ShiftEnter command. It is used by the {@link module:enter/shiftenter~ShiftEnter ShiftEnter feature} to handle\n * the <kbd>Shift</kbd>+<kbd>Enter</kbd> keystroke.\n */\nexport default class ShiftEnterCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tmodel.change( writer => {\n\t\t\tsoftBreakAction( model, writer, doc.selection );\n\t\t\tthis.fire<ShiftEnterCommandAfterExecuteEvent>( 'afterExecute', { writer } );\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.isEnabled = isEnabled( model.schema, doc.selection );\n\t}\n}\n\n/**\n * Fired after the the {@link module:enter/shiftentercommand~ShiftEnterCommand} is finished executing.\n *\n * @eventName ~ShiftEnterCommand#afterExecute\n */\nexport type ShiftEnterCommandAfterExecuteEvent = {\n\tname: 'afterExecute';\n\targs: [ { writer: Writer } ];\n};\n\n/**\n * Checks whether the ShiftEnter command should be enabled in the specified selection.\n */\nfunction isEnabled( schema: Schema, selection: DocumentSelection ): boolean {\n\t// At this moment it is okay to support single range selections only.\n\t// But in the future we may need to change that.\n\tif ( selection.rangeCount > 1 ) {\n\t\treturn false;\n\t}\n\n\tconst anchorPos = selection.anchor;\n\n\t// Check whether the break element can be inserted in the current selection anchor.\n\tif ( !anchorPos || !schema.checkChild( anchorPos, 'softBreak' ) ) {\n\t\treturn false;\n\t}\n\n\tconst range = selection.getFirstRange()!;\n\tconst startElement = range.start.parent as Element;\n\tconst endElement = range.end.parent as Element;\n\n\t// Do not modify the content if selection is cross-limit elements.\n\tif ( ( isInsideLimitElement( startElement, schema ) || isInsideLimitElement( endElement, schema ) ) && startElement !== endElement ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n/**\n * Creates a break in the way that the <kbd>Shift</kbd>+<kbd>Enter</kbd> keystroke is expected to work.\n */\nfunction softBreakAction( model: Model, writer: Writer, selection: DocumentSelection ): void {\n\tconst isSelectionEmpty = selection.isCollapsed;\n\tconst range = selection.getFirstRange()!;\n\tconst startElement = range.start.parent as Element;\n\tconst endElement = range.end.parent as Element;\n\tconst isContainedWithinOneElement = ( startElement == endElement );\n\n\tif ( isSelectionEmpty ) {\n\t\tconst attributesToCopy = getCopyOnEnterAttributes( model.schema, selection.getAttributes() );\n\n\t\tinsertBreak( model, writer, range.end );\n\n\t\twriter.removeSelectionAttribute( selection.getAttributeKeys() );\n\t\twriter.setSelectionAttribute( attributesToCopy );\n\t} else {\n\t\tconst leaveUnmerged = !( range.start.isAtStart && range.end.isAtEnd );\n\n\t\tmodel.deleteContent( selection, { leaveUnmerged } );\n\n\t\t// Selection within one element:\n\t\t//\n\t\t// <h>x[xx]x</h>\t\t-> <h>x^x</h>\t\t\t-> <h>x<br>^x</h>\n\t\tif ( isContainedWithinOneElement ) {\n\t\t\tinsertBreak( model, writer, selection.focus! );\n\t\t}\n\t\t// Selection over multiple elements.\n\t\t//\n\t\t// <h>x[x</h><p>y]y<p>\t-> <h>x^</h><p>y</p>\t-> <h>x</h><p>^y</p>\n\t\t//\n\t\t// We chose not to insert a line break in this case because:\n\t\t//\n\t\t// * it's not a very common scenario,\n\t\t// * it actually surprised me when I saw the \"expected behavior\" in real life.\n\t\t//\n\t\t// It's ok if the user will need to be more specific where they want the <br> to be inserted.\n\t\telse {\n\t\t\t// Move the selection to the 2nd element (last step of the example above).\n\t\t\tif ( leaveUnmerged ) {\n\t\t\t\twriter.setSelection( endElement, 0 );\n\t\t\t}\n\t\t}\n\t}\n}\n\nfunction insertBreak( model: Model, writer: Writer, position: Position ): void {\n\tconst breakLineElement = writer.createElement( 'softBreak' );\n\n\tmodel.insertContent( breakLineElement, position );\n\twriter.setSelection( breakLineElement, 'after' );\n}\n\n/**\n * Checks whether the specified `element` is a child of the limit element.\n *\n * Checking whether the `<p>` element is inside a limit element:\n *   - `<$root><p>Text.</p></$root> => false`\n *   - `<$root><limitElement><p>Text</p></limitElement></$root> => true`\n */\nfunction isInsideLimitElement( element: Element, schema: Schema ): boolean {\n\t// `$root` is a limit element but in this case is an invalid element.\n\tif ( element.is( 'rootElement' ) ) {\n\t\treturn false;\n\t}\n\n\treturn schema.isLimit( element ) || isInsideLimitElement( element.parent as Element, schema );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module enter/shiftenter\n */\n\nimport ShiftEnterCommand from './shiftentercommand';\nimport EnterObserver, { type ViewDocumentEnterEvent } from './enterobserver';\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\n/**\n * This plugin handles the <kbd>Shift</kbd>+<kbd>Enter</kbd> keystroke (soft line break) in the editor.\n *\n * See also the {@link module:enter/enter~Enter} plugin.\n *\n * For more information about this feature see the {@glink api/enter package page}.\n */\nexport default class ShiftEnter extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ShiftEnter' {\n\t\treturn 'ShiftEnter';\n\t}\n\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst conversion = editor.conversion;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Configure the schema.\n\t\tschema.register( 'softBreak', {\n\t\t\tallowWhere: '$text',\n\t\t\tisInline: true\n\t\t} );\n\n\t\t// Configure converters.\n\t\tconversion.for( 'upcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'softBreak',\n\t\t\t\tview: 'br'\n\t\t\t} );\n\n\t\tconversion.for( 'downcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'softBreak',\n\t\t\t\tview: ( modelElement, { writer } ) => writer.createEmptyElement( 'br' )\n\t\t\t} );\n\n\t\tview.addObserver( EnterObserver );\n\n\t\teditor.commands.add( 'shiftEnter', new ShiftEnterCommand( editor ) );\n\n\t\tthis.listenTo<ViewDocumentEnterEvent>( viewDocument, 'enter', ( evt, data ) => {\n\t\t\t// When not in composition, we handle the action, so prevent the default one.\n\t\t\t// When in composition, it's the browser who modify the DOM (renderer is disabled).\n\t\t\tif ( !viewDocument.isComposing ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t}\n\n\t\t\t// The hard enter key is handled by the Enter plugin.\n\t\t\tif ( !data.isSoft ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.execute( 'shiftEnter' );\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquotecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\nimport type { DocumentFragment, Element, Position, Range, Schema, Writer } from 'ckeditor5/src/engine';\n\n/**\n * The block quote command plugin.\n *\n * @extends module:core/command~Command\n */\nexport default class BlockQuoteCommand extends Command {\n\t/**\n\t * Whether the selection starts in a block quote.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #value is on}, all top-most block quotes within\n\t * the selection will be removed. If it is off, all selected blocks will be wrapped with\n\t * a block quote.\n\t *\n\t * @fires execute\n\t * @param options Command options.\n\t * @param options.forceValue If set, it will force the command behavior. If `true`, the command will apply a block quote,\n\t * otherwise the command will remove the block quote. If not set, the command will act basing on its current value.\n\t */\n\tpublic override execute( options: { forceValue?: boolean } = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tconst blocks = Array.from( selection.getSelectedBlocks() );\n\n\t\tconst value = ( options.forceValue === undefined ) ? !this.value : options.forceValue;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( !value ) {\n\t\t\t\tthis._removeQuote( writer, blocks.filter( findQuote ) );\n\t\t\t} else {\n\t\t\t\tconst blocksToQuote = blocks.filter( block => {\n\t\t\t\t\t// Already quoted blocks needs to be considered while quoting too\n\t\t\t\t\t// in order to reuse their <bQ> elements.\n\t\t\t\t\treturn findQuote( block ) || checkCanBeQuoted( schema, block );\n\t\t\t\t} );\n\n\t\t\t\tthis._applyQuote( writer, blocksToQuote );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t */\n\tprivate _getValue(): boolean {\n\t\tconst selection = this.editor.model.document.selection;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\t// In the current implementation, the block quote must be an immediate parent of a block element.\n\t\treturn !!( firstBlock && findQuote( firstBlock ) );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @returns Whether the command should be enabled.\n\t */\n\tprivate _checkEnabled(): boolean {\n\t\tif ( this.value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\tif ( !firstBlock ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn checkCanBeQuoted( schema, firstBlock );\n\t}\n\n\t/**\n\t * Removes the quote from given blocks.\n\t *\n\t * If blocks which are supposed to be \"unquoted\" are in the middle of a quote,\n\t * start it or end it, then the quote will be split (if needed) and the blocks\n\t * will be moved out of it, so other quoted blocks remained quoted.\n\t */\n\tprivate _removeQuote( writer: Writer, blocks: Array<Element> ): void {\n\t\t// Unquote all groups of block. Iterate in the reverse order to not break following ranges.\n\t\tgetRangesOfBlockGroups( writer, blocks ).reverse().forEach( groupRange => {\n\t\t\tif ( groupRange.start.isAtStart && groupRange.end.isAtEnd ) {\n\t\t\t\twriter.unwrap( groupRange.start.parent as Element );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// The group of blocks are at the beginning of an <bQ> so let's move them left (out of the <bQ>).\n\t\t\tif ( groupRange.start.isAtStart ) {\n\t\t\t\tconst positionBefore = writer.createPositionBefore( groupRange.start.parent as Element );\n\n\t\t\t\twriter.move( groupRange, positionBefore );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// The blocks are in the middle of an <bQ> so we need to split the <bQ> after the last block\n\t\t\t// so we move the items there.\n\t\t\tif ( !groupRange.end.isAtEnd ) {\n\t\t\t\twriter.split( groupRange.end );\n\t\t\t}\n\n\t\t\t// Now we are sure that groupRange.end.isAtEnd is true, so let's move the blocks right.\n\n\t\t\tconst positionAfter = writer.createPositionAfter( groupRange.end.parent as Element );\n\n\t\t\twriter.move( groupRange, positionAfter );\n\t\t} );\n\t}\n\n\t/**\n\t * Applies the quote to given blocks.\n\t */\n\tprivate _applyQuote( writer: Writer, blocks: Array<Element> ): void {\n\t\tconst quotesToMerge: Array<Element | DocumentFragment> = [];\n\n\t\t// Quote all groups of block. Iterate in the reverse order to not break following ranges.\n\t\tgetRangesOfBlockGroups( writer, blocks ).reverse().forEach( groupRange => {\n\t\t\tlet quote = findQuote( groupRange.start );\n\n\t\t\tif ( !quote ) {\n\t\t\t\tquote = writer.createElement( 'blockQuote' );\n\n\t\t\t\twriter.wrap( groupRange, quote );\n\t\t\t}\n\n\t\t\tquotesToMerge.push( quote );\n\t\t} );\n\n\t\t// Merge subsequent <bQ> elements. Reverse the order again because this time we want to go through\n\t\t// the <bQ> elements in the source order (due to how merge works – it moves the right element's content\n\t\t// to the first element and removes the right one. Since we may need to merge a couple of subsequent `<bQ>` elements\n\t\t// we want to keep the reference to the first (furthest left) one.\n\t\tquotesToMerge.reverse().reduce( ( currentQuote, nextQuote ) => {\n\t\t\tif ( currentQuote.nextSibling == nextQuote ) {\n\t\t\t\twriter.merge( writer.createPositionAfter( currentQuote ) );\n\n\t\t\t\treturn currentQuote;\n\t\t\t}\n\n\t\t\treturn nextQuote;\n\t\t} );\n\t}\n}\n\nfunction findQuote( elementOrPosition: Element | Position ): Element | DocumentFragment | null {\n\treturn elementOrPosition.parent!.name == 'blockQuote' ? elementOrPosition.parent : null;\n}\n\n/**\n * Returns a minimal array of ranges containing groups of subsequent blocks.\n *\n * content:         abcdefgh\n * blocks:          [ a, b, d, f, g, h ]\n * output ranges:   [ab]c[d]e[fgh]\n */\nfunction getRangesOfBlockGroups( writer: Writer, blocks: Array<Element> ): Array<Range> {\n\tlet startPosition;\n\tlet i = 0;\n\tconst ranges = [];\n\n\twhile ( i < blocks.length ) {\n\t\tconst block = blocks[ i ];\n\t\tconst nextBlock = blocks[ i + 1 ];\n\n\t\tif ( !startPosition ) {\n\t\t\tstartPosition = writer.createPositionBefore( block );\n\t\t}\n\n\t\tif ( !nextBlock || block.nextSibling != nextBlock ) {\n\t\t\tranges.push( writer.createRange( startPosition, writer.createPositionAfter( block ) ) );\n\t\t\tstartPosition = null;\n\t\t}\n\n\t\ti++;\n\t}\n\n\treturn ranges;\n}\n\n/**\n * Checks whether <bQ> can wrap the block.\n */\nfunction checkCanBeQuoted( schema: Schema, block: Element ): boolean {\n\t// TMP will be replaced with schema.checkWrap().\n\tconst isBQAllowed = schema.checkChild( block.parent as Element, 'blockQuote' );\n\tconst isBlockAllowedInBQ = schema.checkChild( [ '$root', 'blockQuote' ], block );\n\n\treturn isBQAllowed && isBlockAllowedInBQ;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquoteediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Enter, type ViewDocumentEnterEvent } from 'ckeditor5/src/enter';\nimport { Delete, type ViewDocumentDeleteEvent } from 'ckeditor5/src/typing';\n\nimport BlockQuoteCommand from './blockquotecommand';\n\n/**\n * The block quote editing.\n *\n * Introduces the `'blockQuote'` command and the `'blockQuote'` model element.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BlockQuoteEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BlockQuoteEditing' {\n\t\treturn 'BlockQuoteEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ Enter, Delete ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\teditor.commands.add( 'blockQuote', new BlockQuoteCommand( editor ) );\n\n\t\tschema.register( 'blockQuote', {\n\t\t\tinheritAllFrom: '$container'\n\t\t} );\n\n\t\teditor.conversion.elementToElement( { model: 'blockQuote', view: 'blockquote' } );\n\n\t\t// Postfixer which cleans incorrect model states connected with block quotes.\n\t\teditor.model.document.registerPostFixer( writer => {\n\t\t\tconst changes = editor.model.document.differ.getChanges();\n\n\t\t\tfor ( const entry of changes ) {\n\t\t\t\tif ( entry.type == 'insert' ) {\n\t\t\t\t\tconst element = entry.position.nodeAfter;\n\n\t\t\t\t\tif ( !element ) {\n\t\t\t\t\t\t// We are inside a text node.\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( element.is( 'element', 'blockQuote' ) && element.isEmpty ) {\n\t\t\t\t\t\t// Added an empty blockQuote - remove it.\n\t\t\t\t\t\twriter.remove( element );\n\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t} else if ( element.is( 'element', 'blockQuote' ) && !schema.checkChild( entry.position, element ) ) {\n\t\t\t\t\t\t// Added a blockQuote in incorrect place. Unwrap it so the content inside is not lost.\n\t\t\t\t\t\twriter.unwrap( element );\n\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t} else if ( element.is( 'element' ) ) {\n\t\t\t\t\t\t// Just added an element. Check that all children meet the scheme rules.\n\t\t\t\t\t\tconst range = writer.createRangeIn( element );\n\n\t\t\t\t\t\tfor ( const child of range.getItems() ) {\n\t\t\t\t\t\t\tif (\n\t\t\t\t\t\t\t\tchild.is( 'element', 'blockQuote' ) &&\n\t\t\t\t\t\t\t\t!schema.checkChild( writer.createPositionBefore( child ), child )\n\t\t\t\t\t\t\t) {\n\t\t\t\t\t\t\t\twriter.unwrap( child );\n\n\t\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t} else if ( entry.type == 'remove' ) {\n\t\t\t\t\tconst parent = entry.position.parent;\n\n\t\t\t\t\tif ( parent.is( 'element', 'blockQuote' ) && parent.isEmpty ) {\n\t\t\t\t\t\t// Something got removed and now blockQuote is empty. Remove the blockQuote as well.\n\t\t\t\t\t\twriter.remove( parent );\n\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn false;\n\t\t} );\n\n\t\tconst viewDocument = this.editor.editing.view.document;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst blockQuoteCommand: BlockQuoteCommand = editor.commands.get( 'blockQuote' )!;\n\n\t\t// Overwrite default Enter key behavior.\n\t\t// If Enter key is pressed with selection collapsed in empty block inside a quote, break the quote.\n\t\tthis.listenTo<ViewDocumentEnterEvent>( viewDocument, 'enter', ( evt, data ) => {\n\t\t\tif ( !selection.isCollapsed || !blockQuoteCommand.value ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst positionParent = selection.getLastPosition()!.parent;\n\n\t\t\tif ( positionParent.isEmpty ) {\n\t\t\t\teditor.execute( 'blockQuote' );\n\t\t\t\teditor.editing.view.scrollToTheSelection();\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'blockquote' } );\n\n\t\t// Overwrite default Backspace key behavior.\n\t\t// If Backspace key is pressed with selection collapsed in first empty block inside a quote, break the quote.\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\tif ( data.direction != 'backward' || !selection.isCollapsed || !blockQuoteCommand!.value ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst positionParent = selection.getLastPosition()!.parent;\n\n\t\t\tif ( positionParent.isEmpty && !positionParent.previousSibling ) {\n\t\t\t\teditor.execute( 'blockQuote' );\n\t\t\t\teditor.editing.view.scrollToTheSelection();\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'blockquote' } );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./blockquote.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquoteui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type BlockQuoteCommand from './blockquotecommand';\n\nimport '../theme/blockquote.css';\n\n/**\n * The block quote UI plugin.\n *\n * It introduces the `'blockQuote'` button.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BlockQuoteUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BlockQuoteUI' {\n\t\treturn 'BlockQuoteUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'blockQuote', locale => {\n\t\t\tconst command: BlockQuoteCommand = editor.commands.get( 'blockQuote' )!;\n\t\t\tconst buttonView = new ButtonView( locale );\n\n\t\t\tbuttonView.set( {\n\t\t\t\tlabel: t( 'Block quote' ),\n\t\t\t\ticon: icons.quote,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\t// Bind button model to command.\n\t\t\tbuttonView.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute command.\n\t\t\tthis.listenTo( buttonView, 'execute', () => {\n\t\t\t\teditor.execute( 'blockQuote' );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn buttonView;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/paragraphcommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport { first } from '@ckeditor/ckeditor5-utils';\n\nimport type { Schema, Selection, DocumentSelection, Element } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The paragraph command.\n */\nexport default class ParagraphCommand extends Command {\n\t/**\n\t * The value of the command. Indicates whether the selection start is placed in a paragraph.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst block = first( document.selection.getSelectedBlocks() );\n\n\t\tthis.value = !!block && block.is( 'element', 'paragraph' );\n\t\tthis.isEnabled = !!block && checkCanBecomeParagraph( block, model.schema );\n\t}\n\n\t/**\n\t * Executes the command. All the blocks (see {@link module:engine/model/schema~Schema}) in the selection\n\t * will be turned to paragraphs.\n\t *\n\t * @fires execute\n\t * @param options Options for the executed command.\n\t * @param options.selection The selection that the command should be applied to. By default,\n\t * if not provided, the command is applied to the {@link module:engine/model/document~Document#selection}.\n\t */\n\tpublic override execute( options: {\n\t\tselection?: Selection | DocumentSelection;\n\t} = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\tmodel.change( writer => {\n\t\t\tconst blocks = ( options.selection || document.selection ).getSelectedBlocks();\n\n\t\t\tfor ( const block of blocks ) {\n\t\t\t\tif ( !block.is( 'element', 'paragraph' ) && checkCanBecomeParagraph( block, model.schema ) ) {\n\t\t\t\t\twriter.rename( block, 'paragraph' );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n\n/**\n * Checks whether the given block can be replaced by a paragraph.\n *\n * @param block A block to be tested.\n * @param schema The schema of the document.\n */\nfunction checkCanBecomeParagraph( block: Element, schema: Schema ): boolean {\n\treturn schema.checkChild( block.parent as Element, 'paragraph' ) && !schema.isObject( block );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/insertparagraphcommand\n */\n\nimport { Command } from '@ckeditor/ckeditor5-core';\nimport type { Element, Position } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The insert paragraph command. It inserts a new paragraph at a specific\n * {@link module:engine/model/position~Position document position}.\n *\n * ```ts\n * // Insert a new paragraph before an element in the document.\n * editor.execute( 'insertParagraph', {\n *   position: editor.model.createPositionBefore( element )\n * } );\n * ```\n *\n * If a paragraph is disallowed in the context of the specific position, the command\n * will attempt to split position ancestors to find a place where it is possible\n * to insert a paragraph.\n *\n * **Note**: This command moves the selection to the inserted paragraph.\n */\nexport default class InsertParagraphCommand extends Command {\n\t/**\n\t * Executes the command.\n\t *\n\t * @param options Options for the executed command.\n\t * @param options.position The model position at which the new paragraph will be inserted.\n\t * @param options.attributes Attributes keys and values to set on a inserted paragraph.\n\t * @fires execute\n\t */\n\tpublic override execute( options: {\n\t\tposition: Position;\n\t\tattributes: Record<string, unknown>;\n\t} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst attributes = options.attributes;\n\n\t\tlet position = options.position;\n\n\t\tmodel.change( writer => {\n\t\t\tconst paragraph = writer.createElement( 'paragraph' );\n\n\t\t\tif ( attributes ) {\n\t\t\t\tmodel.schema.setAllowedAttributes( paragraph, attributes, writer );\n\t\t\t}\n\n\t\t\tif ( !model.schema.checkChild( position.parent as Element, paragraph ) ) {\n\t\t\t\tconst allowedParent = model.schema.findAllowedParent( position, paragraph );\n\n\t\t\t\t// It could be there's no ancestor limit that would allow paragraph.\n\t\t\t\t// In theory, \"paragraph\" could be disallowed even in the \"$root\".\n\t\t\t\tif ( !allowedParent ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tposition = writer.split( position, allowedParent ).position;\n\t\t\t}\n\n\t\t\tmodel.insertContent( paragraph, position );\n\n\t\t\twriter.setSelection( paragraph, 'in' );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/paragraph\n */\n\nimport ParagraphCommand from './paragraphcommand';\nimport InsertParagraphCommand from './insertparagraphcommand';\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\n/**\n * The paragraph feature for the editor.\n *\n * It introduces the `<paragraph>` element in the model which renders as a `<p>` element in the DOM and data.\n *\n * It also brings two editors commands:\n *\n * * The {@link module:paragraph/paragraphcommand~ParagraphCommand `'paragraph'`} command that converts all\n * blocks in the model selection into paragraphs.\n * * The {@link module:paragraph/insertparagraphcommand~InsertParagraphCommand `'insertParagraph'`} command\n * that inserts a new paragraph at a specified location in the model.\n */\nexport default class Paragraph extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Paragraph' {\n\t\treturn 'Paragraph';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\teditor.commands.add( 'paragraph', new ParagraphCommand( editor ) );\n\t\teditor.commands.add( 'insertParagraph', new InsertParagraphCommand( editor ) );\n\n\t\t// Schema.\n\t\tmodel.schema.register( 'paragraph', { inheritAllFrom: '$block' } );\n\n\t\teditor.conversion.elementToElement( { model: 'paragraph', view: 'p' } );\n\n\t\t// Conversion for paragraph-like elements which has not been converted by any plugin.\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\tif ( !Paragraph.paragraphLikeElements.has( viewElement.name ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\t// Do not auto-paragraph empty elements.\n\t\t\t\tif ( viewElement.isEmpty ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createElement( 'paragraph' );\n\t\t\t},\n\t\t\tview: /.+/,\n\t\t\tconverterPriority: 'low'\n\t\t} );\n\t}\n\n\t/**\n\t * A list of element names which should be treated by the autoparagraphing algorithms as\n\t * paragraph-like. This means that e.g. the following content:\n\t *\n\t * ```html\n\t * <h1>Foo</h1>\n\t * <table>\n\t *   <tr>\n\t *     <td>X</td>\n\t *     <td>\n\t *       <ul>\n\t *         <li>Y</li>\n\t *         <li>Z</li>\n\t *       </ul>\n\t *     </td>\n\t *   </tr>\n\t * </table>\n\t * ```\n\t *\n\t * contains five paragraph-like elements: `<h1>`, two `<td>`s and two `<li>`s.\n\t * Hence, if none of the features is going to convert those elements the above content will be automatically handled\n\t * by the paragraph feature and converted to:\n\t *\n\t * ```html\n\t * <p>Foo</p>\n\t * <p>X</p>\n\t * <p>Y</p>\n\t * <p>Z</p>\n\t * ```\n\t *\n\t * Note: The `<td>` containing two `<li>` elements was ignored as the innermost paragraph-like elements\n\t * have a priority upon conversion.\n\t */\n\tpublic static paragraphLikeElements = new Set( [\n\t\t'blockquote',\n\t\t'dd',\n\t\t'div',\n\t\t'dt',\n\t\t'h1',\n\t\t'h2',\n\t\t'h3',\n\t\t'h4',\n\t\t'h5',\n\t\t'h6',\n\t\t'li',\n\t\t'p',\n\t\t'td',\n\t\t'th'\n\t] );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paragraph/paragraphbuttonui\n */\n\nimport { Plugin, icons } from '@ckeditor/ckeditor5-core';\nimport { ButtonView } from '@ckeditor/ckeditor5-ui';\n\nimport Paragraph from './paragraph';\nimport type ParagraphCommand from './paragraphcommand';\n\nconst icon = icons.paragraph;\n\n/**\n * This plugin defines the `'paragraph'` button. It can be used together with\n * {@link module:heading/headingbuttonsui~HeadingButtonsUI} to replace the standard heading dropdown.\n *\n * This plugin is not loaded automatically by the {@link module:paragraph/paragraph~Paragraph} plugin. It must\n * be added manually.\n *\n * ```ts\n * ClassicEditor\n *   .create( {\n *     plugins: [ ..., Heading, Paragraph, HeadingButtonsUI, ParagraphButtonUI ]\n *     toolbar: [ 'paragraph', 'heading1', 'heading2', 'heading3' ]\n *   } )\n *   .then( ... )\n *   .catch( ... );\n * ```\n */\nexport default class ParagraphButtonUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ Paragraph ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'paragraph', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\t\t\tconst command: ParagraphCommand = editor.commands.get( 'paragraph' )!;\n\n\t\t\tview.label = t( 'Paragraph' );\n\t\t\tview.icon = icon;\n\t\t\tview.tooltip = true;\n\t\t\tview.isToggleable = true;\n\t\t\tview.bind( 'isEnabled' ).to( command );\n\t\t\tview.bind( 'isOn' ).to( command, 'value' );\n\n\t\t\tview.on( 'execute', () => {\n\t\t\t\teditor.execute( 'paragraph' );\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingcommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\nimport type { Element, Schema } from 'ckeditor5/src/engine';\n\n/**\n * The heading command. It is used by the {@link module:heading/heading~Heading heading feature} to apply headings.\n */\nexport default class HeadingCommand extends Command {\n\t/**\n\t * If the selection starts in a heading (which {@link #modelElements is supported by this command})\n\t * the value is set to the name of that heading model element.\n\t * It is  set to `false` otherwise.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: false | string;\n\n\t/**\n\t * Set of defined model's elements names that this command support.\n\t * See {@link module:heading/headingconfig~HeadingOption}.\n\t */\n\tpublic readonly modelElements: Array<string>;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param editor Editor instance.\n\t * @param modelElements Names of the element which this command can apply in the model.\n\t */\n\tconstructor( editor: Editor, modelElements: Array<string> ) {\n\t\tsuper( editor );\n\n\t\tthis.modelElements = modelElements;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst block = first( this.editor.model.document.selection.getSelectedBlocks() );\n\n\t\tthis.value = !!block && this.modelElements.includes( block.name ) && block.name;\n\t\tthis.isEnabled = !!block && this.modelElements.some( heading => checkCanBecomeHeading( block, heading, this.editor.model.schema ) );\n\t}\n\n\t/**\n\t * Executes the command. Applies the heading to the selected blocks or, if the first selected\n\t * block is a heading already, turns selected headings (of this level only) to paragraphs.\n\t *\n\t * @param options.value Name of the element which this command will apply in the model.\n\t * @fires execute\n\t */\n\tpublic override execute( options: { value: string } ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\tconst modelElement = options.value;\n\n\t\tmodel.change( writer => {\n\t\t\tconst blocks = Array.from( document.selection.getSelectedBlocks() )\n\t\t\t\t.filter( block => {\n\t\t\t\t\treturn checkCanBecomeHeading( block, modelElement, model.schema );\n\t\t\t\t} );\n\n\t\t\tfor ( const block of blocks ) {\n\t\t\t\tif ( !block.is( 'element', modelElement ) ) {\n\t\t\t\t\twriter.rename( block, modelElement );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n\n/**\n * Checks whether the given block can be replaced by a specific heading.\n *\n * @param block A block to be tested.\n * @param heading Command element name in the model.\n * @param schema The schema of the document.\n */\nfunction checkCanBecomeHeading( block: Element, heading: string, schema: Schema ) {\n\treturn schema.checkChild( block.parent as Element, heading ) && !schema.isObject( block );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport { Paragraph } from 'ckeditor5/src/paragraph';\nimport { priorities } from 'ckeditor5/src/utils';\nimport type { HeadingOption } from './headingconfig';\n\nimport HeadingCommand from './headingcommand';\n\nconst defaultModelElement = 'paragraph';\n\n/**\n * The headings engine feature. It handles switching between block formats &ndash; headings and paragraph.\n * This class represents the engine part of the heading feature. See also {@link module:heading/heading~Heading}.\n * It introduces `heading1`-`headingN` commands which allow to convert paragraphs into headings.\n */\nexport default class HeadingEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'HeadingEditing' {\n\t\treturn 'HeadingEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'heading', {\n\t\t\toptions: [\n\t\t\t\t{ model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },\n\t\t\t\t{ model: 'heading1', view: 'h2', title: 'Heading 1', class: 'ck-heading_heading1' },\n\t\t\t\t{ model: 'heading2', view: 'h3', title: 'Heading 2', class: 'ck-heading_heading2' },\n\t\t\t\t{ model: 'heading3', view: 'h4', title: 'Heading 3', class: 'ck-heading_heading3' }\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ Paragraph ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst options: Array<HeadingOption> = editor.config.get( 'heading.options' )!;\n\n\t\tconst modelElements = [];\n\n\t\tfor ( const option of options ) {\n\t\t\t// Skip paragraph - it is defined in required Paragraph feature.\n\t\t\tif ( option.model === 'paragraph' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Schema.\n\t\t\teditor.model.schema.register( option.model, {\n\t\t\t\tinheritAllFrom: '$block'\n\t\t\t} );\n\n\t\t\teditor.conversion.elementToElement( option );\n\n\t\t\tmodelElements.push( option.model );\n\t\t}\n\n\t\tthis._addDefaultH1Conversion( editor );\n\n\t\t// Register the heading command for this option.\n\t\teditor.commands.add( 'heading', new HeadingCommand( editor, modelElements ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\t// If the enter command is added to the editor, alter its behavior.\n\t\t// Enter at the end of a heading element should create a paragraph.\n\t\tconst editor = this.editor;\n\t\tconst enterCommand = editor.commands.get( 'enter' );\n\t\tconst options: Array<HeadingOption> = editor.config.get( 'heading.options' )!;\n\n\t\tif ( enterCommand ) {\n\t\t\tthis.listenTo( enterCommand, 'afterExecute', ( evt, data ) => {\n\t\t\t\tconst positionParent = editor.model.document.selection.getFirstPosition()!.parent;\n\t\t\t\tconst isHeading = options.some( option => positionParent.is( 'element', option.model ) );\n\n\t\t\t\tif ( isHeading && !positionParent.is( 'element', defaultModelElement ) && positionParent.childCount === 0 ) {\n\t\t\t\t\tdata.writer.rename( positionParent, defaultModelElement );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Adds default conversion for `h1` -> `heading1` with a low priority.\n\t *\n\t * @param editor Editor instance on which to add the `h1` conversion.\n\t */\n\tprivate _addDefaultH1Conversion( editor: Editor ) {\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tmodel: 'heading1',\n\t\t\tview: 'h1',\n\t\t\t// With a `low` priority, `paragraph` plugin autoparagraphing mechanism is executed. Make sure\n\t\t\t// this listener is called before it. If not, `h1` will be transformed into a paragraph.\n\t\t\tconverterPriority: priorities.get( 'low' ) + 1\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/utils\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport type { HeadingOption } from './headingconfig';\n\n/**\n * Returns heading options as defined in `config.heading.options` but processed to consider\n * the editor localization, i.e. to display {@link module:heading/headingconfig~HeadingOption}\n * in the correct language.\n *\n * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n * when the user configuration is defined because the editor does not exist yet.\n */\nexport function getLocalizedOptions( editor: Editor ): Array<HeadingOption> {\n\tconst t = editor.t;\n\tconst localizedTitles: Record<string, string> = {\n\t\t'Paragraph': t( 'Paragraph' ),\n\t\t'Heading 1': t( 'Heading 1' ),\n\t\t'Heading 2': t( 'Heading 2' ),\n\t\t'Heading 3': t( 'Heading 3' ),\n\t\t'Heading 4': t( 'Heading 4' ),\n\t\t'Heading 5': t( 'Heading 5' ),\n\t\t'Heading 6': t( 'Heading 6' )\n\t};\n\n\treturn editor.config.get( 'heading.options' )!.map( option => {\n\t\tconst title = localizedTitles[ option.title ];\n\n\t\tif ( title && title != option.title ) {\n\t\t\toption.title = title;\n\t\t}\n\n\t\treturn option;\n\t} );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./heading.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingui\n */\n\nimport { Plugin, type Command } from 'ckeditor5/src/core';\nimport {\n\tModel,\n\tcreateDropdown,\n\taddListToDropdown,\n\ttype ButtonExecuteEvent,\n\ttype ListDropdownItemDefinition\n} from 'ckeditor5/src/ui';\nimport { Collection } from 'ckeditor5/src/utils';\nimport type { ParagraphCommand } from 'ckeditor5/src/paragraph';\n\nimport { getLocalizedOptions } from './utils';\nimport type HeadingCommand from './headingcommand';\n\nimport '../theme/heading.css';\n\n/**\n * The headings UI feature. It introduces the `headings` dropdown.\n */\nexport default class HeadingUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'HeadingUI' {\n\t\treturn 'HeadingUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst options = getLocalizedOptions( editor );\n\t\tconst defaultTitle = t( 'Choose heading' );\n\t\tconst dropdownTooltip = t( 'Heading' );\n\n\t\t// Register UI component.\n\t\teditor.ui.componentFactory.add( 'heading', locale => {\n\t\t\tconst titles: Record<string, string> = {};\n\t\t\tconst itemDefinitions: Collection<ListDropdownItemDefinition> = new Collection();\n\n\t\t\tconst headingCommand: HeadingCommand = editor.commands.get( 'heading' )!;\n\t\t\tconst paragraphCommand: ParagraphCommand = editor.commands.get( 'paragraph' )!;\n\n\t\t\tconst commands: Array<Command> = [ headingCommand ];\n\n\t\t\tfor ( const option of options ) {\n\t\t\t\tconst def: ListDropdownItemDefinition = {\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: new Model( {\n\t\t\t\t\t\tlabel: option.title,\n\t\t\t\t\t\tclass: option.class,\n\t\t\t\t\t\twithText: true\n\t\t\t\t\t} )\n\t\t\t\t};\n\n\t\t\t\tif ( option.model === 'paragraph' ) {\n\t\t\t\t\tdef.model.bind( 'isOn' ).to( paragraphCommand, 'value' );\n\t\t\t\t\tdef.model.set( 'commandName', 'paragraph' );\n\t\t\t\t\tcommands.push( paragraphCommand );\n\t\t\t\t} else {\n\t\t\t\t\tdef.model.bind( 'isOn' ).to( headingCommand, 'value', value => value === option.model );\n\t\t\t\t\tdef.model.set( {\n\t\t\t\t\t\tcommandName: 'heading',\n\t\t\t\t\t\tcommandValue: option.model\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\t// Add the option to the collection.\n\t\t\t\titemDefinitions.add( def );\n\n\t\t\t\ttitles[ option.model ] = option.title;\n\t\t\t}\n\n\t\t\tconst dropdownView = createDropdown( locale );\n\t\t\taddListToDropdown( dropdownView, itemDefinitions );\n\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tisOn: false,\n\t\t\t\twithText: true,\n\t\t\t\ttooltip: dropdownTooltip\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck-heading-dropdown'\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => {\n\t\t\t\treturn areEnabled.some( isEnabled => isEnabled );\n\t\t\t} );\n\n\t\t\tdropdownView.buttonView.bind( 'label' ).to( headingCommand, 'value', paragraphCommand, 'value', ( value, para ) => {\n\t\t\t\tconst whichModel = value || para && 'paragraph';\n\n\t\t\t\tif ( typeof whichModel === 'boolean' ) {\n\t\t\t\t\treturn defaultTitle;\n\t\t\t\t}\n\n\t\t\t\t// If none of the commands is active, display default title.\n\t\t\t\tif ( !titles[ whichModel ] ) {\n\t\t\t\t\treturn defaultTitle;\n\t\t\t\t}\n\n\t\t\t\treturn titles[ whichModel ];\n\t\t\t} );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo<ButtonExecuteEvent>( dropdownView, 'execute', evt => {\n\t\t\t\tconst { commandName, commandValue } = evt.source as any;\n\t\t\t\teditor.execute( commandName, commandValue ? { value: commandValue } : undefined );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/highlightstack\n */\n\nimport { EmitterMixin, type ArrayOrItem } from '@ckeditor/ckeditor5-utils';\n\nimport type { DowncastWriter, HighlightDescriptor } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Class used to handle the correct order of highlights on elements.\n *\n * When different highlights are applied to same element the correct order should be preserved:\n *\n * * highlight with highest priority should be applied,\n * * if two highlights have same priority - sort by CSS class provided in\n * {@link module:engine/conversion/downcasthelpers~HighlightDescriptor}.\n *\n * This way, highlight will be applied with the same rules it is applied on texts.\n */\nexport default class HighlightStack extends EmitterMixin() {\n\tprivate readonly _stack: Array<HighlightDescriptor> = [];\n\n\t/**\n\t * Adds highlight descriptor to the stack.\n\t *\n\t * @fires change:top\n\t */\n\tpublic add( descriptor: HighlightDescriptor, writer: DowncastWriter ): void {\n\t\tconst stack = this._stack;\n\n\t\t// Save top descriptor and insert new one. If top is changed - fire event.\n\t\tconst oldTop = stack[ 0 ];\n\t\tthis._insertDescriptor( descriptor );\n\t\tconst newTop = stack[ 0 ];\n\n\t\t// When new object is at the top and stores different information.\n\t\tif ( oldTop !== newTop && !compareDescriptors( oldTop, newTop ) ) {\n\t\t\tthis.fire<HighlightStackChangeEvent>( 'change:top', {\n\t\t\t\toldDescriptor: oldTop,\n\t\t\t\tnewDescriptor: newTop,\n\t\t\t\twriter\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Removes highlight descriptor from the stack.\n\t *\n\t * @fires change:top\n\t * @param id Id of the descriptor to remove.\n\t */\n\tpublic remove( id: string, writer: DowncastWriter ): void {\n\t\tconst stack = this._stack;\n\n\t\tconst oldTop = stack[ 0 ];\n\t\tthis._removeDescriptor( id );\n\t\tconst newTop = stack[ 0 ];\n\n\t\t// When new object is at the top and stores different information.\n\t\tif ( oldTop !== newTop && !compareDescriptors( oldTop, newTop ) ) {\n\t\t\tthis.fire<HighlightStackChangeEvent>( 'change:top', {\n\t\t\t\toldDescriptor: oldTop,\n\t\t\t\tnewDescriptor: newTop,\n\t\t\t\twriter\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Inserts a given descriptor in correct place in the stack. It also takes care about updating information\n\t * when descriptor with same id is already present.\n\t */\n\tprivate _insertDescriptor( descriptor: HighlightDescriptor ) {\n\t\tconst stack = this._stack;\n\t\tconst index = stack.findIndex( item => item.id === descriptor.id );\n\n\t\t// Inserting exact same descriptor - do nothing.\n\t\tif ( compareDescriptors( descriptor, stack[ index ] ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If descriptor with same id but with different information is on the stack - remove it.\n\t\tif ( index > -1 ) {\n\t\t\tstack.splice( index, 1 );\n\t\t}\n\n\t\t// Find correct place to insert descriptor in the stack.\n\t\t// It has different information (for example priority) so it must be re-inserted in correct place.\n\t\tlet i = 0;\n\n\t\twhile ( stack[ i ] && shouldABeBeforeB( stack[ i ], descriptor ) ) {\n\t\t\ti++;\n\t\t}\n\n\t\tstack.splice( i, 0, descriptor );\n\t}\n\n\t/**\n\t * Removes descriptor with given id from the stack.\n\t *\n\t * @param id Descriptor's id.\n\t */\n\tprivate _removeDescriptor( id: string ) {\n\t\tconst stack = this._stack;\n\t\tconst index = stack.findIndex( item => item.id === id );\n\n\t\t// If descriptor with same id is on the list - remove it.\n\t\tif ( index > -1 ) {\n\t\t\tstack.splice( index, 1 );\n\t\t}\n\t}\n}\n\n/**\n * Compares two descriptors by checking their priority and class list.\n *\n * @returns Returns true if both descriptors are defined and have same priority and classes.\n */\nfunction compareDescriptors( a: HighlightDescriptor, b: HighlightDescriptor ) {\n\treturn a && b && a.priority == b.priority && classesToString( a.classes ) == classesToString( b.classes );\n}\n\n/**\n * Checks whenever first descriptor should be placed in the stack before second one.\n */\nfunction shouldABeBeforeB( a: HighlightDescriptor, b: HighlightDescriptor ) {\n\tif ( a.priority! > b.priority! ) {\n\t\treturn true;\n\t} else if ( a.priority! < b.priority! ) {\n\t\treturn false;\n\t}\n\n\t// When priorities are equal and names are different - use classes to compare.\n\treturn classesToString( a.classes ) > classesToString( b.classes );\n}\n\n/**\n * Converts CSS classes passed with {@link module:engine/conversion/downcasthelpers~HighlightDescriptor} to\n * sorted string.\n */\nfunction classesToString( classes: ArrayOrItem<string> ) {\n\treturn Array.isArray( classes ) ? classes.sort().join( ',' ) : classes;\n}\n\n/**\n * Fired when top element on {@link module:widget/highlightstack~HighlightStack} has been changed\n *\n * @eventName ~HighlightStack#change:top\n */\nexport type HighlightStackChangeEvent = {\n\tname: 'change' | 'change:top';\n\targs: [ HighlightStackChangeEventData ];\n};\n\n/**\n * Additional information about the change.\n */\nexport type HighlightStackChangeEventData = {\n\n\t/**\n\t * Old highlight descriptor. It will be `undefined` when first descriptor is added to the stack.\n\t */\n\toldDescriptor: HighlightDescriptor;\n\n\t/**\n\t * New highlight descriptor. It will be `undefined` when last descriptor is removed from the stack.\n\t */\n\tnewDescriptor: HighlightDescriptor;\n\n\t/**\n\t * View writer that can be used to modify element.\n\t */\n\twriter: DowncastWriter;\n};\n","export default \"<svg viewBox=\\\"0 0 16 16\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M4 0v1H1v3H0V.5A.5.5 0 0 1 .5 0H4zm8 0h3.5a.5.5 0 0 1 .5.5V4h-1V1h-3V0zM4 16H.5a.5.5 0 0 1-.5-.5V12h1v3h3v1zm8 0v-1h3v-3h1v3.5a.5.5 0 0 1-.5.5H12z\\\"/><path fill-opacity=\\\".256\\\" d=\\\"M1 1h14v14H1z\\\"/><g class=\\\"ck-icon__selected-indicator\\\"><path d=\\\"M7 0h2v1H7V0zM0 7h1v2H0V7zm15 0h1v2h-1V7zm-8 8h2v1H7v-1z\\\"/><path fill-opacity=\\\".254\\\" d=\\\"M1 1h14v14H1z\\\"/></g></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/utils\n */\n\nimport {\n\tCKEditorError,\n\ttoArray,\n\ttype ObservableChangeEvent,\n\ttype GetCallback\n} from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tfindOptimalInsertionRange as engineFindOptimalInsertionRange,\n\ttype AddHighlightCallback,\n\ttype HighlightDescriptor,\n\ttype RemoveHighlightCallback,\n\ttype MapperViewToModelPositionEvent,\n\ttype DocumentSelection,\n\ttype DowncastWriter,\n\ttype Model,\n\ttype Range,\n\ttype Selection,\n\ttype ViewContainerElement,\n\ttype ViewEditableElement,\n\ttype ViewElement,\n\ttype ViewTypeCheckable\n} from '@ckeditor/ckeditor5-engine';\n\nimport { IconView } from '@ckeditor/ckeditor5-ui';\n\nimport HighlightStack, { type HighlightStackChangeEvent } from './highlightstack';\nimport { getTypeAroundFakeCaretPosition } from './widgettypearound/utils';\n\nimport dragHandleIcon from '../theme/icons/drag-handle.svg';\n\n/**\n * CSS class added to each widget element.\n */\nexport const WIDGET_CLASS_NAME = 'ck-widget';\n\n/**\n * CSS class added to currently selected widget element.\n */\nexport const WIDGET_SELECTED_CLASS_NAME = 'ck-widget_selected';\n\n/**\n * Returns `true` if given {@link module:engine/view/node~Node} is an {@link module:engine/view/element~Element} and a widget.\n */\nexport function isWidget( node: ViewTypeCheckable ): boolean {\n\tif ( !node.is( 'element' ) ) {\n\t\treturn false;\n\t}\n\n\treturn !!node.getCustomProperty( 'widget' );\n}\n\n/**\n * Converts the given {@link module:engine/view/element~Element} to a widget in the following way:\n *\n * * sets the `contenteditable` attribute to `\"false\"`,\n * * adds the `ck-widget` CSS class,\n * * adds a custom {@link module:engine/view/element~Element#getFillerOffset `getFillerOffset()`} method returning `null`,\n * * adds a custom property allowing to recognize widget elements by using {@link ~isWidget `isWidget()`},\n * * implements the {@link ~setHighlightHandling view highlight on widgets}.\n *\n * This function needs to be used in conjunction with\n * {@link module:engine/conversion/downcasthelpers~DowncastHelpers downcast conversion helpers}\n * like {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`}.\n * Moreover, typically you will want to use `toWidget()` only for `editingDowncast`, while keeping the `dataDowncast` clean.\n *\n * For example, in order to convert a `<widget>` model element to `<div class=\"widget\">` in the view, you can define\n * such converters:\n *\n * ```ts\n * editor.conversion.for( 'editingDowncast' )\n * \t.elementToElement( {\n * \t\tmodel: 'widget',\n * \t\tview: ( modelItem, { writer } ) => {\n * \t\t\tconst div = writer.createContainerElement( 'div', { class: 'widget' } );\n *\n * \t\t\treturn toWidget( div, writer, { label: 'some widget' } );\n * \t\t}\n * \t} );\n *\n * editor.conversion.for( 'dataDowncast' )\n * \t.elementToElement( {\n * \t\tmodel: 'widget',\n * \t\tview: ( modelItem, { writer } ) => {\n * \t\t\treturn writer.createContainerElement( 'div', { class: 'widget' } );\n * \t\t}\n * \t} );\n * ```\n *\n * See the full source code of the widget (with a nested editable) schema definition and converters in\n * [this sample](https://github.com/ckeditor/ckeditor5-widget/blob/master/tests/manual/widget-with-nestededitable.js).\n *\n * @param options Additional options.\n * @param options.label Element's label provided to the {@link ~setLabel} function. It can be passed as\n * a plain string or a function returning a string. It represents the widget for assistive technologies (like screen readers).\n * @param options.hasSelectionHandle If `true`, the widget will have a selection handle added.\n * @returns Returns the same element.\n */\nexport function toWidget(\n\telement: ViewElement,\n\twriter: DowncastWriter,\n\toptions: {\n\t\tlabel?: string | ( () => string );\n\t\thasSelectionHandle?: boolean;\n\t} = {}\n): ViewElement {\n\tif ( !element.is( 'containerElement' ) ) {\n\t\t/**\n\t\t * The element passed to `toWidget()` must be a {@link module:engine/view/containerelement~ContainerElement}\n\t\t * instance.\n\t\t *\n\t\t * @error widget-to-widget-wrong-element-type\n\t\t * @param element The view element passed to `toWidget()`.\n\t\t */\n\t\tthrow new CKEditorError(\n\t\t\t'widget-to-widget-wrong-element-type',\n\t\t\tnull,\n\t\t\t{ element }\n\t\t);\n\t}\n\n\twriter.setAttribute( 'contenteditable', 'false', element );\n\n\twriter.addClass( WIDGET_CLASS_NAME, element );\n\twriter.setCustomProperty( 'widget', true, element );\n\telement.getFillerOffset = getFillerOffset;\n\n\twriter.setCustomProperty( 'widgetLabel', [], element );\n\n\tif ( options.label ) {\n\t\tsetLabel( element, options.label );\n\t}\n\n\tif ( options.hasSelectionHandle ) {\n\t\taddSelectionHandle( element, writer );\n\t}\n\n\tsetHighlightHandling( element, writer );\n\n\treturn element;\n}\n\n/**\n * Default handler for adding a highlight on a widget.\n * It adds CSS class and attributes basing on the given highlight descriptor.\n */\nfunction addHighlight( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) {\n\tif ( descriptor.classes ) {\n\t\twriter.addClass( toArray( descriptor.classes ), element );\n\t}\n\n\tif ( descriptor.attributes ) {\n\t\tfor ( const key in descriptor.attributes ) {\n\t\t\twriter.setAttribute( key, descriptor.attributes[ key ], element );\n\t\t}\n\t}\n}\n\n/**\n * Default handler for removing a highlight from a widget.\n * It removes CSS class and attributes basing on the given highlight descriptor.\n */\nfunction removeHighlight( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) {\n\tif ( descriptor.classes ) {\n\t\twriter.removeClass( toArray( descriptor.classes ), element );\n\t}\n\n\tif ( descriptor.attributes ) {\n\t\tfor ( const key in descriptor.attributes ) {\n\t\t\twriter.removeAttribute( key, element );\n\t\t}\n\t}\n}\n\n/**\n * Sets highlight handling methods. Uses {@link module:widget/highlightstack~HighlightStack} to\n * properly determine which highlight descriptor should be used at given time.\n */\nexport function setHighlightHandling(\n\telement: ViewElement,\n\twriter: DowncastWriter,\n\tadd: ( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) => void = addHighlight,\n\tremove: ( element: ViewElement, descriptor: HighlightDescriptor, writer: DowncastWriter ) => void = removeHighlight\n): void {\n\tconst stack = new HighlightStack();\n\n\tstack.on<HighlightStackChangeEvent>( 'change:top', ( evt, data ) => {\n\t\tif ( data.oldDescriptor ) {\n\t\t\tremove( element, data.oldDescriptor, data.writer );\n\t\t}\n\n\t\tif ( data.newDescriptor ) {\n\t\t\tadd( element, data.newDescriptor, data.writer );\n\t\t}\n\t} );\n\n\tconst addHighlightCallback: AddHighlightCallback = ( element, descriptor, writer ) => stack.add( descriptor, writer );\n\tconst removeHighlightCallback: RemoveHighlightCallback = ( element, id, writer ) => stack.remove( id, writer );\n\n\twriter.setCustomProperty( 'addHighlight', addHighlightCallback, element );\n\twriter.setCustomProperty( 'removeHighlight', removeHighlightCallback, element );\n}\n\n/**\n * Sets label for given element.\n * It can be passed as a plain string or a function returning a string. Function will be called each time label is retrieved by\n * {@link ~getLabel `getLabel()`}.\n */\nexport function setLabel( element: ViewElement, labelOrCreator: string | ( () => string ) ): void {\n\tconst widgetLabel = element.getCustomProperty( 'widgetLabel' ) as Array<string | ( () => string )>;\n\n\twidgetLabel.push( labelOrCreator );\n}\n\n/**\n * Returns the label of the provided element.\n */\nexport function getLabel( element: ViewElement ): string {\n\tconst widgetLabel = element.getCustomProperty( 'widgetLabel' ) as Array<string | ( () => string )>;\n\n\treturn widgetLabel.reduce( ( prev: string, current: string | ( () => string ) ) => {\n\t\tif ( typeof current === 'function' ) {\n\t\t\treturn prev ? prev + '. ' + current() : current();\n\t\t} else {\n\t\t\treturn prev ? prev + '. ' + current : current;\n\t\t}\n\t}, '' );\n}\n\n/**\n * Adds functionality to the provided {@link module:engine/view/editableelement~EditableElement} to act as a widget's editable:\n *\n * * sets the `contenteditable` attribute to `true` when {@link module:engine/view/editableelement~EditableElement#isReadOnly} is `false`,\n * otherwise sets it to `false`,\n * * adds the `ck-editor__editable` and `ck-editor__nested-editable` CSS classes,\n * * adds the `ck-editor__nested-editable_focused` CSS class when the editable is focused and removes it when it is blurred.\n * * implements the {@link ~setHighlightHandling view highlight on widget's editable}.\n *\n * Similarly to {@link ~toWidget `toWidget()`} this function should be used in `editingDowncast` only and it is usually\n * used together with {@link module:engine/conversion/downcasthelpers~DowncastHelpers#elementToElement `elementToElement()`}.\n *\n * For example, in order to convert a `<nested>` model element to `<div class=\"nested\">` in the view, you can define\n * such converters:\n *\n * ```ts\n * editor.conversion.for( 'editingDowncast' )\n * \t.elementToElement( {\n * \t\tmodel: 'nested',\n * \t\tview: ( modelItem, { writer } ) => {\n * \t\t\tconst div = writer.createEditableElement( 'div', { class: 'nested' } );\n *\n * \t\t\treturn toWidgetEditable( nested, writer, { label: 'label for editable' } );\n * \t\t}\n * \t} );\n *\n * editor.conversion.for( 'dataDowncast' )\n * \t.elementToElement( {\n * \t\tmodel: 'nested',\n * \t\tview: ( modelItem, { writer } ) => {\n * \t\t\treturn writer.createContainerElement( 'div', { class: 'nested' } );\n * \t\t}\n * \t} );\n * ```\n *\n * See the full source code of the widget (with nested editable) schema definition and converters in\n * [this sample](https://github.com/ckeditor/ckeditor5-widget/blob/master/tests/manual/widget-with-nestededitable.js).\n *\n * @param options Additional options.\n * @param options.label Editable's label used by assistive technologies (e.g. screen readers).\n * @returns Returns the same element that was provided in the `editable` parameter\n */\nexport function toWidgetEditable(\n\teditable: ViewEditableElement,\n\twriter: DowncastWriter,\n\toptions: {\n\t\tlabel?: string;\n\t} = {}\n): ViewEditableElement {\n\twriter.addClass( [ 'ck-editor__editable', 'ck-editor__nested-editable' ], editable );\n\n\twriter.setAttribute( 'role', 'textbox', editable );\n\n\tif ( options.label ) {\n\t\twriter.setAttribute( 'aria-label', options.label, editable );\n\t}\n\n\t// Set initial contenteditable value.\n\twriter.setAttribute( 'contenteditable', editable.isReadOnly ? 'false' : 'true', editable );\n\n\t// Bind the contenteditable property to element#isReadOnly.\n\teditable.on<ObservableChangeEvent<boolean>>( 'change:isReadOnly', ( evt, property, is ) => {\n\t\twriter.setAttribute( 'contenteditable', is ? 'false' : 'true', editable );\n\t} );\n\n\teditable.on<ObservableChangeEvent<boolean>>( 'change:isFocused', ( evt, property, is ) => {\n\t\tif ( is ) {\n\t\t\twriter.addClass( 'ck-editor__nested-editable_focused', editable );\n\t\t} else {\n\t\t\twriter.removeClass( 'ck-editor__nested-editable_focused', editable );\n\t\t}\n\t} );\n\n\tsetHighlightHandling( editable, writer );\n\n\treturn editable;\n}\n\n/**\n * Returns a model range which is optimal (in terms of UX) for inserting a widget block.\n *\n * For instance, if a selection is in the middle of a paragraph, the collapsed range before this paragraph\n * will be returned so that it is not split. If the selection is at the end of a paragraph,\n * the collapsed range after this paragraph will be returned.\n *\n * Note: If the selection is placed in an empty block, the range in that block will be returned. If that range\n * is then passed to {@link module:engine/model/model~Model#insertContent}, the block will be fully replaced\n * by the inserted widget block.\n *\n * @param selection The selection based on which the insertion position should be calculated.\n * @param model Model instance.\n * @returns The optimal range.\n */\nexport function findOptimalInsertionRange(\n\tselection: Selection | DocumentSelection,\n\tmodel: Model\n): Range {\n\tconst selectedElement = selection.getSelectedElement();\n\n\tif ( selectedElement ) {\n\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( selection );\n\n\t\t// If the WidgetTypeAround \"fake caret\" is displayed, use its position for the insertion\n\t\t// to provide the most predictable UX (https://github.com/ckeditor/ckeditor5/issues/7438).\n\t\tif ( typeAroundFakeCaretPosition ) {\n\t\t\treturn model.createRange( model.createPositionAt( selectedElement, typeAroundFakeCaretPosition ) );\n\t\t}\n\t}\n\n\treturn engineFindOptimalInsertionRange( selection, model );\n}\n\n/**\n * A util to be used in order to map view positions to correct model positions when implementing a widget\n * which renders non-empty view element for an empty model element.\n *\n * For example:\n *\n * ```\n * // Model:\n * <placeholder type=\"name\"></placeholder>\n *\n * // View:\n * <span class=\"placeholder\">name</span>\n * ```\n *\n * In such case, view positions inside `<span>` cannot be correctly mapped to the model (because the model element is empty).\n * To handle mapping positions inside `<span class=\"placeholder\">` to the model use this util as follows:\n *\n * ```ts\n * editor.editing.mapper.on(\n * \t'viewToModelPosition',\n * \tviewToModelPositionOutsideModelElement( model, viewElement => viewElement.hasClass( 'placeholder' ) )\n * );\n * ```\n *\n * The callback will try to map the view offset of selection to an expected model position.\n *\n * 1. When the position is at the end (or in the middle) of the inline widget:\n *\n * ```\n * // View:\n * <p>foo <span class=\"placeholder\">name|</span> bar</p>\n *\n * // Model:\n * <paragraph>foo <placeholder type=\"name\"></placeholder>| bar</paragraph>\n * ```\n *\n * 2. When the position is at the beginning of the inline widget:\n *\n * ```\n * // View:\n * <p>foo <span class=\"placeholder\">|name</span> bar</p>\n *\n * // Model:\n * <paragraph>foo |<placeholder type=\"name\"></placeholder> bar</paragraph>\n * ```\n *\n * @param model Model instance on which the callback operates.\n * @param viewElementMatcher Function that is passed a view element and should return `true` if the custom mapping\n * should be applied to the given view element.\n */\nexport function viewToModelPositionOutsideModelElement(\n\tmodel: Model,\n\tviewElementMatcher: ( element: ViewElement ) => boolean\n): GetCallback<MapperViewToModelPositionEvent> {\n\treturn ( evt, data ) => {\n\t\tconst { mapper, viewPosition } = data;\n\n\t\tconst viewParent = mapper.findMappedViewAncestor( viewPosition );\n\n\t\tif ( !viewElementMatcher( viewParent ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelParent = mapper.toModelElement( viewParent );\n\n\t\tdata.modelPosition = model.createPositionAt( modelParent!, viewPosition.isAtStart ? 'before' : 'after' );\n\t};\n}\n\n/**\n * Default filler offset function applied to all widget elements.\n */\nfunction getFillerOffset() {\n\treturn null;\n}\n\n/**\n * Adds a drag handle to the widget.\n */\nfunction addSelectionHandle( widgetElement: ViewContainerElement, writer: DowncastWriter ) {\n\tconst selectionHandle = writer.createUIElement( 'div', { class: 'ck ck-widget__selection-handle' }, function( domDocument ) {\n\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t// Use the IconView from the ui library.\n\t\tconst icon = new IconView();\n\t\ticon.set( 'content', dragHandleIcon );\n\n\t\t// Render the icon view right away to append its #element to the selectionHandle DOM element.\n\t\ticon.render();\n\n\t\tdomElement.appendChild( icon.element! );\n\n\t\treturn domElement;\n\t} );\n\n\t// Append the selection handle into the widget wrapper.\n\twriter.insert( writer.createPositionAt( widgetElement, 0 ), selectionHandle );\n\twriter.addClass( [ 'ck-widget_with-selection-handle' ], widgetElement );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgettypearound/utils\n */\n\nimport { isWidget } from '../utils';\n\nimport type {\n\tDocumentSelection,\n\tDomConverter,\n\tElement,\n\tSchema,\n\tSelection,\n\tViewElement\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * The name of the type around model selection attribute responsible for\n * displaying a fake caret next to a selected widget.\n */\nexport const TYPE_AROUND_SELECTION_ATTRIBUTE = 'widget-type-around';\n\n/**\n * Checks if an element is a widget that qualifies to get the widget type around UI.\n */\nexport function isTypeAroundWidget( viewElement: ViewElement | undefined, modelElement: Element, schema: Schema ): boolean {\n\treturn !!viewElement && isWidget( viewElement ) && !schema.isInline( modelElement );\n}\n\n/**\n * For the passed HTML element, this helper finds the closest widget type around button ancestor.\n */\nexport function getClosestTypeAroundDomButton( domElement: HTMLElement ): HTMLElement | null {\n\treturn domElement.closest( '.ck-widget__type-around__button' );\n}\n\n/**\n * For the passed widget type around button element, this helper determines at which position\n * the paragraph would be inserted into the content if, for instance, the button was\n * clicked by the user.\n *\n * @returns The position of the button.\n */\nexport function getTypeAroundButtonPosition( domElement: HTMLElement ): 'before' | 'after' {\n\treturn domElement.classList.contains( 'ck-widget__type-around__button_before' ) ? 'before' : 'after';\n}\n\n/**\n * For the passed HTML element, this helper returns the closest view widget ancestor.\n */\nexport function getClosestWidgetViewElement( domElement: HTMLElement, domConverter: DomConverter ): ViewElement {\n\tconst widgetDomElement = domElement.closest( '.ck-widget' );\n\n\treturn domConverter.mapDomToView( widgetDomElement as any ) as ViewElement;\n}\n\n/**\n * For the passed selection instance, it returns the position of the fake caret displayed next to a widget.\n *\n * **Note**: If the fake caret is not currently displayed, `null` is returned.\n *\n * @returns The position of the fake caret or `null` when none is present.\n */\nexport function getTypeAroundFakeCaretPosition( selection: Selection | DocumentSelection ): 'before' | 'after' | null {\n\treturn selection.getAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE ) as any;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./widgettypearound.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/* global DOMParser */\n\n/**\n * @module widget/widgettypearound/widgettypearound\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\nimport { Template } from '@ckeditor/ckeditor5-ui';\n\nimport {\n\tEnter,\n\ttype ViewDocumentEnterEvent\n} from '@ckeditor/ckeditor5-enter';\n\nimport {\n\tDelete,\n\ttype ViewDocumentDeleteEvent,\n\ttype ViewDocumentInsertTextEvent\n} from '@ckeditor/ckeditor5-typing';\n\nimport {\n\tenv,\n\tisForwardArrowKeyCode,\n\ttype BaseEvent,\n\ttype Emitter,\n\ttype GetCallback,\n\ttype GetCallbackOptions,\n\ttype ObservableChangeEvent,\n\ttype KeystrokeInfo\n} from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tBubblingEventInfo,\n\tDocumentChangeEvent,\n\tDomEventData,\n\tDowncastInsertEvent,\n\tDowncastSelectionEvent,\n\tDowncastWriter,\n\tElement,\n\tSchema,\n\tSelectionChangeRangeEvent,\n\tViewDocumentArrowKeyEvent,\n\tViewDocumentCompositionStartEvent,\n\tViewDocumentKeyDownEvent,\n\tViewDocumentMouseDownEvent,\n\tViewElement,\n\tModelDeleteContentEvent,\n\tModelInsertContentEvent,\n\tModelInsertObjectEvent\n} from '@ckeditor/ckeditor5-engine';\n\nimport {\n\tisTypeAroundWidget,\n\tgetClosestTypeAroundDomButton,\n\tgetTypeAroundButtonPosition,\n\tgetClosestWidgetViewElement,\n\tgetTypeAroundFakeCaretPosition,\n\tTYPE_AROUND_SELECTION_ATTRIBUTE\n} from './utils';\n\nimport { isWidget } from '../utils';\nimport type Widget from '../widget';\n\nimport returnIcon from '../../theme/icons/return-arrow.svg';\n\nimport '../../theme/widgettypearound.css';\n\nconst POSSIBLE_INSERTION_POSITIONS = [ 'before', 'after' ] as const;\n\n// Do the SVG parsing once and then clone the result <svg> DOM element for each new button.\nconst RETURN_ARROW_ICON_ELEMENT = new DOMParser().parseFromString( returnIcon, 'image/svg+xml' ).firstChild!;\n\nconst PLUGIN_DISABLED_EDITING_ROOT_CLASS = 'ck-widget__type-around_disabled';\n\n/**\n * A plugin that allows users to type around widgets where normally it is impossible to place the caret due\n * to limitations of web browsers. These \"tight spots\" occur, for instance, before (or after) a widget being\n * the first (or last) child of its parent or between two block widgets.\n *\n * This plugin extends the {@link module:widget/widget~Widget `Widget`} plugin and injects the user interface\n * with two buttons into each widget instance in the editor. Each of the buttons can be clicked by the\n * user if the widget is next to the \"tight spot\". Once clicked, a paragraph is created with the selection anchored\n * in it so that users can type (or insert content, paste, etc.) straight away.\n */\nexport default class WidgetTypeAround extends Plugin {\n\t/**\n\t * A reference to the model widget element that has the fake caret active\n\t * on either side of it. It is later used to remove CSS classes associated with the fake caret\n\t * when the widget no longer needs it.\n\t */\n\tprivate _currentFakeCaretModelElement: Element | null = null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'WidgetTypeAround' {\n\t\treturn 'WidgetTypeAround';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ Enter, Delete ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\t// Set a CSS class on the view editing root when the plugin is disabled so all the buttons\n\t\t// and lines visually disappear. All the interactions are disabled in individual plugin methods.\n\t\tthis.on<ObservableChangeEvent<boolean>>( 'change:isEnabled', ( evt, data, isEnabled ) => {\n\t\t\teditingView.change( writer => {\n\t\t\t\tfor ( const root of editingView.document.roots ) {\n\t\t\t\t\tif ( isEnabled ) {\n\t\t\t\t\t\twriter.removeClass( PLUGIN_DISABLED_EDITING_ROOT_CLASS, root );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.addClass( PLUGIN_DISABLED_EDITING_ROOT_CLASS, root );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tif ( !isEnabled ) {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\n\t\tthis._enableTypeAroundUIInjection();\n\t\tthis._enableInsertingParagraphsOnButtonClick();\n\t\tthis._enableInsertingParagraphsOnEnterKeypress();\n\t\tthis._enableInsertingParagraphsOnTypingKeystroke();\n\t\tthis._enableTypeAroundFakeCaretActivationUsingKeyboardArrows();\n\t\tthis._enableDeleteIntegration();\n\t\tthis._enableInsertContentIntegration();\n\t\tthis._enableInsertObjectIntegration();\n\t\tthis._enableDeleteContentIntegration();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._currentFakeCaretModelElement = null;\n\t}\n\n\t/**\n\t * Inserts a new paragraph next to a widget element with the selection anchored in it.\n\t *\n\t * **Note**: This method is heavily user-oriented and will both focus the editing view and scroll\n\t * the viewport to the selection in the inserted paragraph.\n\t *\n\t * @param widgetModelElement The model widget element next to which a paragraph is inserted.\n\t * @param position The position where the paragraph is inserted. Either `'before'` or `'after'` the widget.\n\t */\n\tprivate _insertParagraph( widgetModelElement: Element, position: 'before' | 'after' ) {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\tconst attributesToCopy = editor.model.schema.getAttributesWithProperty( widgetModelElement, 'copyOnReplace', true );\n\n\t\teditor.execute( 'insertParagraph', {\n\t\t\tposition: editor.model.createPositionAt( widgetModelElement, position ),\n\t\t\tattributes: attributesToCopy\n\t\t} );\n\n\t\teditingView.focus();\n\t\teditingView.scrollToTheSelection();\n\t}\n\n\t/**\n\t * A wrapper for the {@link module:utils/emittermixin~Emitter#listenTo} method that executes the callbacks only\n\t * when the plugin {@link #isEnabled is enabled}.\n\t *\n\t * @param emitter The object that fires the event.\n\t * @param event The name of the event.\n\t * @param callback The function to be called on event.\n\t * @param options Additional options.\n\t * @param options.priority The priority of this event callback. The higher the priority value the sooner\n\t * the callback will be fired. Events having the same priority are called in the order they were added.\n\t */\n\tprivate _listenToIfEnabled<TEvent extends BaseEvent>(\n\t\temitter: Emitter,\n\t\tevent: TEvent[ 'name' ],\n\t\tcallback: OmitThisParameter<GetCallback<TEvent>>,\n\t\toptions?: GetCallbackOptions<TEvent>\n\t): void {\n\t\tthis.listenTo( emitter, event, ( ...args ) => {\n\t\t\t// Do not respond if the plugin is disabled.\n\t\t\tif ( this.isEnabled ) {\n\t\t\t\tcallback( ...args );\n\t\t\t}\n\t\t}, options );\n\t}\n\n\t/**\n\t * Similar to {@link #_insertParagraph}, this method inserts a paragraph except that it\n\t * does not expect a position. Instead, it performs the insertion next to a selected widget\n\t * according to the `widget-type-around` model selection attribute value (fake caret position).\n\t *\n\t * Because this method requires the `widget-type-around` attribute to be set,\n\t * the insertion can only happen when the widget's fake caret is active (e.g. activated\n\t * using the keyboard).\n\t *\n\t * @returns Returns `true` when the paragraph was inserted (the attribute was present) and `false` otherwise.\n\t */\n\tprivate _insertParagraphAccordingToFakeCaretPosition() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( modelSelection );\n\n\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {\n\t\t// @if CK_DEBUG_TYPING // \tconsole.info( '%c[WidgetTypeAround]%c Fake caret -> insert paragraph',\n\t\t// @if CK_DEBUG_TYPING // \t\t'font-weight: bold; color: green', ''\n\t\t// @if CK_DEBUG_TYPING // \t);\n\t\t// @if CK_DEBUG_TYPING // }\n\n\t\tconst selectedModelElement = modelSelection.getSelectedElement()!;\n\n\t\tthis._insertParagraph( selectedModelElement, typeAroundFakeCaretPosition );\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Creates a listener in the editing conversion pipeline that injects the widget type around\n\t * UI into every single widget instance created in the editor.\n\t *\n\t * The UI is delivered as a {@link module:engine/view/uielement~UIElement}\n\t * wrapper which renders DOM buttons that users can use to insert paragraphs.\n\t */\n\tprivate _enableTypeAroundUIInjection() {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst t = editor.locale.t;\n\t\tconst buttonTitles = {\n\t\t\tbefore: t( 'Insert paragraph before block' ),\n\t\t\tafter: t( 'Insert paragraph after block' )\n\t\t};\n\n\t\teditor.editing.downcastDispatcher.on<DowncastInsertEvent<Element>>( 'insert', ( evt, data, conversionApi ) => {\n\t\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item );\n\n\t\t\tif ( !viewElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out non-widgets and inline widgets.\n\t\t\tif ( isTypeAroundWidget( viewElement, data.item, schema ) ) {\n\t\t\t\tinjectUIIntoWidget( conversionApi.writer, buttonTitles, viewElement! );\n\n\t\t\t\tconst widgetLabel = viewElement.getCustomProperty( 'widgetLabel' ) as Array<string | ( () => string )>;\n\n\t\t\t\twidgetLabel.push( () => {\n\t\t\t\t\treturn this.isEnabled ? t( 'Press Enter to type after or press Shift + Enter to type before the widget' ) : '';\n\t\t\t\t} );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Brings support for the fake caret that appears when either:\n\t *\n\t * * the selection moves to a widget from a position next to it using arrow keys,\n\t * * the arrow key is pressed when the widget is already selected.\n\t *\n\t * The fake caret lets the user know that they can start typing or just press\n\t * <kbd>Enter</kbd> to insert a paragraph at the position next to a widget as suggested by the fake caret.\n\t *\n\t * The fake caret disappears when the user changes the selection or the editor\n\t * gets blurred.\n\t *\n\t * The whole idea is as follows:\n\t *\n\t * 1. A user does one of the 2 scenarios described at the beginning.\n\t * 2. The \"keydown\" listener is executed and the decision is made whether to show or hide the fake caret.\n\t * 3. If it should show up, the `widget-type-around` model selection attribute is set indicating\n\t *    on which side of the widget it should appear.\n\t * 4. The selection dispatcher reacts to the selection attribute and sets CSS classes responsible for the\n\t *    fake caret on the view widget.\n\t * 5. If the fake caret should disappear, the selection attribute is removed and the dispatcher\n\t *    does the CSS class clean-up in the view.\n\t * 6. Additionally, `change:range` and `FocusTracker#isFocused` listeners also remove the selection\n\t *    attribute (the former also removes widget CSS classes).\n\t */\n\tprivate _enableTypeAroundFakeCaretActivationUsingKeyboardArrows() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst schema = model.schema;\n\t\tconst editingView = editor.editing.view;\n\n\t\t// This is the main listener responsible for the fake caret.\n\t\t// Note: The priority must precede the default Widget class keydown handler (\"high\").\n\t\tthis._listenToIfEnabled<ViewDocumentArrowKeyEvent>( editingView.document, 'arrowKey', ( evt, domEventData ) => {\n\t\t\tthis._handleArrowKeyPress( evt, domEventData );\n\t\t}, { context: [ isWidget, '$text' ], priority: 'high' } );\n\n\t\t// This listener makes sure the widget type around selection attribute will be gone from the model\n\t\t// selection as soon as the model range changes. This attribute only makes sense when a widget is selected\n\t\t// (and the \"fake horizontal caret\" is visible) so whenever the range changes (e.g. selection moved somewhere else),\n\t\t// let's get rid of the attribute so that the selection downcast dispatcher isn't even bothered.\n\t\tthis._listenToIfEnabled<SelectionChangeRangeEvent>( modelSelection, 'change:range', ( evt, data ) => {\n\t\t\t// Do not reset the selection attribute when the change was indirect.\n\t\t\tif ( !data.directChange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Get rid of the widget type around attribute of the selection on every change:range.\n\t\t\t// If the range changes, it means for sure, the user is no longer in the active (\"fake horizontal caret\") mode.\n\t\t\teditor.model.change( writer => {\n\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t} );\n\t\t} );\n\n\t\t// Get rid of the widget type around attribute of the selection on every document change\n\t\t// that makes widget not selected any more (i.e. widget was removed).\n\t\tthis._listenToIfEnabled<DocumentChangeEvent>( model.document, 'change:data', () => {\n\t\t\tconst selectedModelElement = modelSelection.getSelectedElement();\n\n\t\t\tif ( selectedModelElement ) {\n\t\t\t\tconst selectedViewElement = editor.editing.mapper.toViewElement( selectedModelElement );\n\n\t\t\t\tif ( isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\teditor.model.change( writer => {\n\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t} );\n\t\t} );\n\n\t\t// React to changes of the model selection attribute made by the arrow keys listener.\n\t\t// If the block widget is selected and the attribute changes, downcast the attribute to special\n\t\t// CSS classes associated with the active (\"fake horizontal caret\") mode of the widget.\n\t\tthis._listenToIfEnabled<DowncastSelectionEvent>( editor.editing.downcastDispatcher, 'selection', ( evt, data, conversionApi ) => {\n\t\t\tconst writer = conversionApi.writer;\n\n\t\t\tif ( this._currentFakeCaretModelElement ) {\n\t\t\t\tconst selectedViewElement = conversionApi.mapper.toViewElement( this._currentFakeCaretModelElement );\n\n\t\t\t\tif ( selectedViewElement ) {\n\t\t\t\t\t// Get rid of CSS classes associated with the active (\"fake horizontal caret\") mode from the view widget.\n\t\t\t\t\twriter.removeClass( POSSIBLE_INSERTION_POSITIONS.map( positionToWidgetCssClass ), selectedViewElement );\n\n\t\t\t\t\tthis._currentFakeCaretModelElement = null;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst selectedModelElement = data.selection.getSelectedElement();\n\n\t\t\tif ( !selectedModelElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedViewElement = conversionApi.mapper.toViewElement( selectedModelElement );\n\n\t\t\tif ( !isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( data.selection );\n\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\twriter.addClass( positionToWidgetCssClass( typeAroundFakeCaretPosition ), selectedViewElement! );\n\n\t\t\t// Remember the view widget that got the \"fake-caret\" CSS class. This class should be removed ASAP when the\n\t\t\t// selection changes\n\t\t\tthis._currentFakeCaretModelElement = selectedModelElement;\n\t\t} );\n\n\t\tthis._listenToIfEnabled<ObservableChangeEvent<boolean>>( editor.ui.focusTracker, 'change:isFocused', ( evt, name, isFocused ) => {\n\t\t\tif ( !isFocused ) {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\n\t\tfunction positionToWidgetCssClass( position: 'before' | 'after' ) {\n\t\t\treturn `ck-widget_type-around_show-fake-caret_${ position }`;\n\t\t}\n\t}\n\n\t/**\n\t * A listener executed on each \"keydown\" in the view document, a part of\n\t * {@link #_enableTypeAroundFakeCaretActivationUsingKeyboardArrows}.\n\t *\n\t * It decides whether the arrow keypress should activate the fake caret or not (also whether it should\n\t * be deactivated).\n\t *\n\t * The fake caret activation is done by setting the `widget-type-around` model selection attribute\n\t * in this listener, and stopping and preventing the event that would normally be handled by the widget\n\t * plugin that is responsible for the regular keyboard navigation near/across all widgets (that\n\t * includes inline widgets, which are ignored by the widget type around plugin).\n\t */\n\tprivate _handleArrowKeyPress( evt: BubblingEventInfo<'arrowKey'>, domEventData: DomEventData & KeystrokeInfo ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst schema = model.schema;\n\t\tconst editingView = editor.editing.view;\n\n\t\tconst keyCode = domEventData.keyCode;\n\t\tconst isForward = isForwardArrowKeyCode( keyCode, editor.locale.contentLanguageDirection );\n\t\tconst selectedViewElement = editingView.document.selection.getSelectedElement()!;\n\t\tconst selectedModelElement = editor.editing.mapper.toModelElement( selectedViewElement )!;\n\t\tlet shouldStopAndPreventDefault;\n\n\t\t// Handle keyboard navigation when a type-around-compatible widget is currently selected.\n\t\tif ( isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\tshouldStopAndPreventDefault = this._handleArrowKeyPressOnSelectedWidget( isForward );\n\t\t}\n\t\t// Handle keyboard arrow navigation when the selection is next to a type-around-compatible widget\n\t\t// and the widget is about to be selected.\n\t\telse if ( modelSelection.isCollapsed ) {\n\t\t\tshouldStopAndPreventDefault = this._handleArrowKeyPressWhenSelectionNextToAWidget( isForward );\n\t\t}\n\t\t// Handle collapsing a non-collapsed selection that is wider than on a single widget.\n\t\telse if ( !domEventData.shiftKey ) {\n\t\t\tshouldStopAndPreventDefault = this._handleArrowKeyPressWhenNonCollapsedSelection( isForward );\n\t\t}\n\n\t\tif ( shouldStopAndPreventDefault ) {\n\t\t\tdomEventData.preventDefault();\n\t\t\tevt.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles the keyboard navigation on \"keydown\" when a widget is currently selected and activates or deactivates\n\t * the fake caret for that widget, depending on the current value of the `widget-type-around` model\n\t * selection attribute and the direction of the pressed arrow key.\n\t *\n\t * @param isForward `true` when the pressed arrow key was responsible for the forward model selection movement\n\t * as in {@link module:utils/keyboard~isForwardArrowKeyCode}.\n\t * @returns Returns `true` when the keypress was handled and no other keydown listener of the editor should\n\t * process the event any further. Returns `false` otherwise.\n\t */\n\tprivate _handleArrowKeyPressOnSelectedWidget( isForward: boolean ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( modelSelection );\n\n\t\treturn model.change( writer => {\n\t\t\t// If the fake caret is displayed...\n\t\t\tif ( typeAroundFakeCaretPosition ) {\n\t\t\t\tconst isLeavingWidget = typeAroundFakeCaretPosition === ( isForward ? 'after' : 'before' );\n\n\t\t\t\t// If the keyboard arrow works against the value of the selection attribute...\n\t\t\t\t// then remove the selection attribute but prevent default DOM actions\n\t\t\t\t// and do not let the Widget plugin listener move the selection. This brings\n\t\t\t\t// the widget back to the state, for instance, like if was selected using the mouse.\n\t\t\t\t//\n\t\t\t\t// **Note**: If leaving the widget when the fake caret is active, then the default\n\t\t\t\t// Widget handler will change the selection and, in turn, this will automatically discard\n\t\t\t\t// the selection attribute.\n\t\t\t\tif ( !isLeavingWidget ) {\n\t\t\t\t\twriter.removeSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t\t// If the fake caret wasn't displayed, let's set it now according to the direction of the arrow\n\t\t\t// key press. This also means we cannot let the Widget plugin listener move the selection.\n\t\t\telse {\n\t\t\t\twriter.setSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE, isForward ? 'after' : 'before' );\n\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\treturn false;\n\t\t} );\n\t}\n\n\t/**\n\t * Handles the keyboard navigation on \"keydown\" when **no** widget is selected but the selection is **directly** next\n\t * to one and upon the fake caret should become active for this widget upon arrow keypress\n\t * (AKA entering/selecting the widget).\n\t *\n\t * **Note**: This code mirrors the implementation from the widget plugin but also adds the selection attribute.\n\t * Unfortunately, there is no safe way to let the widget plugin do the selection part first and then just set the\n\t * selection attribute here in the widget type around plugin. This is why this code must duplicate some from the widget plugin.\n\t *\n\t * @param isForward `true` when the pressed arrow key was responsible for the forward model selection movement\n\t * as in {@link module:utils/keyboard~isForwardArrowKeyCode}.\n\t * @returns Returns `true` when the keypress was handled and no other keydown listener of the editor should\n\t * process the event any further. Returns `false` otherwise.\n\t */\n\tprivate _handleArrowKeyPressWhenSelectionNextToAWidget( isForward: boolean ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\t\tconst widgetPlugin: Widget = editor.plugins.get( 'Widget' );\n\n\t\t// This is the widget the selection is about to be set on.\n\t\tconst modelElementNextToSelection = widgetPlugin._getObjectElementNextToSelection( isForward )!;\n\t\tconst viewElementNextToSelection = editor.editing.mapper.toViewElement( modelElementNextToSelection );\n\n\t\tif ( isTypeAroundWidget( viewElementNextToSelection, modelElementNextToSelection, schema ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twidgetPlugin._setSelectionOverElement( modelElementNextToSelection );\n\t\t\t\twriter.setSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE, isForward ? 'before' : 'after' );\n\t\t\t} );\n\n\t\t\t// The change() block above does the same job as the Widget plugin. The event can\n\t\t\t// be safely canceled.\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Handles the keyboard navigation on \"keydown\" when a widget is currently selected (together with some other content)\n\t * and the widget is the first or last element in the selection. It activates or deactivates the fake caret for that widget.\n\t *\n\t * @param isForward `true` when the pressed arrow key was responsible for the forward model selection movement\n\t * as in {@link module:utils/keyboard~isForwardArrowKeyCode}.\n\t * @returns Returns `true` when the keypress was handled and no other keydown listener of the editor should\n\t * process the event any further. Returns `false` otherwise.\n\t */\n\tprivate _handleArrowKeyPressWhenNonCollapsedSelection( isForward: boolean ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\t\tconst mapper = editor.editing.mapper;\n\t\tconst modelSelection = model.document.selection;\n\n\t\tconst selectedModelNode = isForward ?\n\t\t\tmodelSelection.getLastPosition()!.nodeBefore :\n\t\t\tmodelSelection.getFirstPosition()!.nodeAfter;\n\n\t\tconst selectedViewNode = mapper.toViewElement( selectedModelNode as any );\n\n\t\t// There is a widget at the collapse position so collapse the selection to the fake caret on it.\n\t\tif ( isTypeAroundWidget( selectedViewNode, selectedModelNode as any, schema ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( selectedModelNode!, 'on' );\n\t\t\t\twriter.setSelectionAttribute( TYPE_AROUND_SELECTION_ATTRIBUTE, isForward ? 'after' : 'before' );\n\t\t\t} );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Registers a `mousedown` listener for the view document which intercepts events\n\t * coming from the widget type around UI, which happens when a user clicks one of the buttons\n\t * that insert a paragraph next to a widget.\n\t */\n\tprivate _enableInsertingParagraphsOnButtonClick() {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\tthis._listenToIfEnabled<ViewDocumentMouseDownEvent>( editingView.document, 'mousedown', ( evt, domEventData ) => {\n\t\t\tconst button = getClosestTypeAroundDomButton( domEventData.domTarget );\n\n\t\t\tif ( !button ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst buttonPosition = getTypeAroundButtonPosition( button );\n\t\t\tconst widgetViewElement = getClosestWidgetViewElement( button, editingView.domConverter );\n\t\t\tconst widgetModelElement = editor.editing.mapper.toModelElement( widgetViewElement );\n\n\t\t\tthis._insertParagraph( widgetModelElement!, buttonPosition );\n\n\t\t\tdomEventData.preventDefault();\n\t\t\tevt.stop();\n\t\t} );\n\t}\n\n\t/**\n\t * Creates the <kbd>Enter</kbd> key listener on the view document that allows the user to insert a paragraph\n\t * near the widget when either:\n\t *\n\t * * The fake caret was first activated using the arrow keys,\n\t * * The entire widget is selected in the model.\n\t *\n\t * In the first case, the new paragraph is inserted according to the `widget-type-around` selection\n\t * attribute (see {@link #_handleArrowKeyPress}).\n\t *\n\t * In the second case, the new paragraph is inserted based on whether a soft (<kbd>Shift</kbd>+<kbd>Enter</kbd>) keystroke\n\t * was pressed or not.\n\t */\n\tprivate _enableInsertingParagraphsOnEnterKeypress() {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst editingView = editor.editing.view;\n\n\t\tthis._listenToIfEnabled<ViewDocumentEnterEvent>( editingView.document, 'enter', ( evt, domEventData ) => {\n\t\t\t// This event could be triggered from inside the widget but we are interested\n\t\t\t// only when the widget is selected itself.\n\t\t\tif ( evt.eventPhase != 'atTarget' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedModelElement = selection.getSelectedElement()!;\n\t\t\tconst selectedViewElement = editor.editing.mapper.toViewElement( selectedModelElement );\n\n\t\t\tconst schema = editor.model.schema;\n\t\t\tlet wasHandled;\n\n\t\t\t// First check if the widget is selected and there's a type around selection attribute associated\n\t\t\t// with the fake caret that would tell where to insert a new paragraph.\n\t\t\tif ( this._insertParagraphAccordingToFakeCaretPosition() ) {\n\t\t\t\twasHandled = true;\n\t\t\t}\n\t\t\t// Then, if there is no selection attribute associated with the fake caret, check if the widget\n\t\t\t// simply is selected and create a new paragraph according to the keystroke (Shift+)Enter.\n\t\t\telse if ( isTypeAroundWidget( selectedViewElement, selectedModelElement, schema ) ) {\n\t\t\t\tthis._insertParagraph( selectedModelElement, domEventData.isSoft ? 'before' : 'after' );\n\n\t\t\t\twasHandled = true;\n\t\t\t}\n\n\t\t\tif ( wasHandled ) {\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: isWidget } );\n\t}\n\n\t/**\n\t * Similar to the {@link #_enableInsertingParagraphsOnEnterKeypress}, it allows the user\n\t * to insert a paragraph next to a widget when the fake caret was activated using arrow\n\t * keys but it responds to typing instead of <kbd>Enter</kbd>.\n\t *\n\t * Listener enabled by this method will insert a new paragraph according to the `widget-type-around`\n\t * model selection attribute as the user simply starts typing, which creates the impression that the fake caret\n\t * behaves like a real one rendered by the browser (AKA your text appears where the caret was).\n\t *\n\t * **Note**: At the moment this listener creates 2 undo steps: one for the `insertParagraph` command\n\t * and another one for actual typing. It is not a disaster but this may need to be fixed\n\t * sooner or later.\n\t */\n\tprivate _enableInsertingParagraphsOnTypingKeystroke() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\t// Note: The priority must precede the default Input plugin insertText handler.\n\t\tthis._listenToIfEnabled<ViewDocumentInsertTextEvent>( viewDocument, 'insertText', ( evt, data ) => {\n\t\t\tif ( this._insertParagraphAccordingToFakeCaretPosition() ) {\n\t\t\t\t// The view selection in the event data contains the widget. If the new paragraph\n\t\t\t\t// was inserted, modify the view selection passed along with the insertText event\n\t\t\t\t// so the default event handler in the Input plugin starts typing inside the paragraph.\n\t\t\t\t// Otherwise, the typing would be over the widget.\n\t\t\t\tdata.selection = viewDocument.selection;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\tif ( env.isAndroid ) {\n\t\t\t// On Android with English keyboard, the composition starts just by putting caret\n\t\t\t// at the word end or by selecting a table column. This is not a real composition started.\n\t\t\t// Trigger delete content on first composition key pressed.\n\t\t\tthis._listenToIfEnabled<ViewDocumentKeyDownEvent>( viewDocument, 'keydown', ( evt, data ) => {\n\t\t\t\tif ( data.keyCode == 229 ) {\n\t\t\t\t\tthis._insertParagraphAccordingToFakeCaretPosition();\n\t\t\t\t}\n\t\t\t} );\n\t\t} else {\n\t\t\t// Note: The priority must precede the default Input plugin compositionstart handler (to call it before delete content).\n\t\t\tthis._listenToIfEnabled<ViewDocumentCompositionStartEvent>( viewDocument, 'compositionstart', () => {\n\t\t\t\tthis._insertParagraphAccordingToFakeCaretPosition();\n\t\t\t}, { priority: 'high' } );\n\t\t}\n\t}\n\n\t/**\n\t * It creates a \"delete\" event listener on the view document to handle cases when the <kbd>Delete</kbd> or <kbd>Backspace</kbd>\n\t * is pressed and the fake caret is currently active.\n\t *\n\t * The fake caret should create an illusion of a real browser caret so that when it appears before or after\n\t * a widget, pressing <kbd>Delete</kbd> or <kbd>Backspace</kbd> should remove a widget or delete the content\n\t * before or after a widget (depending on the content surrounding the widget).\n\t */\n\tprivate _enableDeleteIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\n\t\tthis._listenToIfEnabled<ViewDocumentDeleteEvent>( editingView.document, 'delete', ( evt, domEventData ) => {\n\t\t\t// This event could be triggered from inside the widget but we are interested\n\t\t\t// only when the widget is selected itself.\n\t\t\tif ( evt.eventPhase != 'atTarget' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( model.document.selection );\n\n\t\t\t// This listener handles only these cases when the fake caret is active.\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst direction = domEventData.direction;\n\t\t\tconst selectedModelWidget = model.document.selection.getSelectedElement();\n\n\t\t\tconst isFakeCaretBefore = typeAroundFakeCaretPosition === 'before';\n\t\t\tconst isDeleteForward = direction == 'forward';\n\t\t\tconst shouldDeleteEntireWidget = isFakeCaretBefore === isDeleteForward;\n\n\t\t\tif ( shouldDeleteEntireWidget ) {\n\t\t\t\teditor.execute( 'delete', {\n\t\t\t\t\tselection: model.createSelection( selectedModelWidget!, 'on' )\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\tconst range = schema.getNearestSelectionRange(\n\t\t\t\t\tmodel.createPositionAt( selectedModelWidget!, typeAroundFakeCaretPosition ),\n\t\t\t\t\tdirection\n\t\t\t\t);\n\n\t\t\t\t// If there is somewhere to move selection to, then there will be something to delete.\n\t\t\t\tif ( range ) {\n\t\t\t\t\t// If the range is NOT collapsed, then we know that the range contains an object (see getNearestSelectionRange() docs).\n\t\t\t\t\tif ( !range.isCollapsed ) {\n\t\t\t\t\t\tmodel.change( writer => {\n\t\t\t\t\t\t\twriter.setSelection( range );\n\t\t\t\t\t\t\teditor.execute( isDeleteForward ? 'deleteForward' : 'delete' );\n\t\t\t\t\t\t} );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tconst probe = model.createSelection( range.start );\n\t\t\t\t\t\tmodel.modifySelection( probe, { direction } );\n\n\t\t\t\t\t\t// If the range is collapsed, let's see if a non-collapsed range exists that can could be deleted.\n\t\t\t\t\t\t// If such range exists, use the editor command because it it safe for collaboration (it merges where it can).\n\t\t\t\t\t\tif ( !probe.focus!.isEqual( range.start ) ) {\n\t\t\t\t\t\t\tmodel.change( writer => {\n\t\t\t\t\t\t\t\twriter.setSelection( range );\n\t\t\t\t\t\t\t\teditor.execute( isDeleteForward ? 'deleteForward' : 'delete' );\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t}\n\t\t\t\t\t\t// If there is no non-collapsed range to be deleted then we are sure that there is an empty element\n\t\t\t\t\t\t// next to a widget that should be removed. \"delete\" and \"deleteForward\" commands cannot get rid of it\n\t\t\t\t\t\t// so calling Model#deleteContent here manually.\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tconst deepestEmptyRangeAncestor = getDeepestEmptyElementAncestor( schema, range.start.parent as Element );\n\n\t\t\t\t\t\t\tmodel.deleteContent( model.createSelection( deepestEmptyRangeAncestor, 'on' ), {\n\t\t\t\t\t\t\t\tdoNotAutoparagraph: true\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If some content was deleted, don't let the handler from the Widget plugin kick in.\n\t\t\t// If nothing was deleted, then the default handler will have nothing to do anyway.\n\t\t\tdomEventData.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: isWidget } );\n\t}\n\n\t/**\n\t * Attaches the {@link module:engine/model/model~Model#event:insertContent} event listener that, for instance, allows the user to paste\n\t * content near a widget when the fake caret is first activated using the arrow keys.\n\t *\n\t * The content is inserted according to the `widget-type-around` selection attribute (see {@link #_handleArrowKeyPress}).\n\t */\n\tprivate _enableInsertContentIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst documentSelection = model.document.selection;\n\n\t\tthis._listenToIfEnabled<ModelInsertContentEvent>( editor.model, 'insertContent', ( evt, [ content, selectable ] ) => {\n\t\t\tif ( selectable && !( selectable as any ).is( 'documentSelection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( documentSelection );\n\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\treturn model.change( writer => {\n\t\t\t\tconst selectedElement = documentSelection.getSelectedElement();\n\t\t\t\tconst position = model.createPositionAt( selectedElement!, typeAroundFakeCaretPosition );\n\t\t\t\tconst selection = writer.createSelection( position );\n\n\t\t\t\tconst result = model.insertContent( content, selection );\n\n\t\t\t\twriter.setSelection( selection );\n\n\t\t\t\treturn result;\n\t\t\t} );\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Attaches the {@link module:engine/model/model~Model#event:insertObject} event listener that modifies the\n\t * `options.findOptimalPosition`parameter to position of fake caret in relation to selected element\n\t * to reflect user's intent of desired insertion position.\n\t *\n\t * The object is inserted according to the `widget-type-around` selection attribute (see {@link #_handleArrowKeyPress}).\n\t */\n\tprivate _enableInsertObjectIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst documentSelection = model.document.selection;\n\n\t\tthis._listenToIfEnabled<ModelInsertObjectEvent>( editor.model, 'insertObject', ( evt, args ) => {\n\t\t\tconst [ , selectable, options = {} ] = args;\n\n\t\t\tif ( selectable && !( selectable as any ).is( 'documentSelection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( documentSelection );\n\n\t\t\tif ( !typeAroundFakeCaretPosition ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\toptions.findOptimalPosition = typeAroundFakeCaretPosition;\n\t\t\targs[ 3 ] = options;\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Attaches the {@link module:engine/model/model~Model#event:deleteContent} event listener to block the event when the fake\n\t * caret is active.\n\t *\n\t * This is required for cases that trigger {@link module:engine/model/model~Model#deleteContent `model.deleteContent()`}\n\t * before calling {@link module:engine/model/model~Model#insertContent `model.insertContent()`} like, for instance,\n\t * plain text pasting.\n\t */\n\tprivate _enableDeleteContentIntegration() {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst documentSelection = model.document.selection;\n\n\t\tthis._listenToIfEnabled<ModelDeleteContentEvent>( editor.model, 'deleteContent', ( evt, [ selection ] ) => {\n\t\t\tif ( selection && !selection.is( 'documentSelection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst typeAroundFakeCaretPosition = getTypeAroundFakeCaretPosition( documentSelection );\n\n\t\t\t// Disable removing the selection content while pasting plain text.\n\t\t\tif ( typeAroundFakeCaretPosition ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n}\n\n/**\n * Injects the type around UI into a view widget instance.\n */\nfunction injectUIIntoWidget(\n\tviewWriter: DowncastWriter,\n\tbuttonTitles: { before: string; after: string },\n\twidgetViewElement: ViewElement ) {\n\tconst typeAroundWrapper = viewWriter.createUIElement( 'div', {\n\t\tclass: 'ck ck-reset_all ck-widget__type-around'\n\t}, function( domDocument ) {\n\t\tconst wrapperDomElement = this.toDomElement( domDocument );\n\n\t\tinjectButtons( wrapperDomElement, buttonTitles );\n\t\tinjectFakeCaret( wrapperDomElement );\n\n\t\treturn wrapperDomElement;\n\t} );\n\n\t// Inject the type around wrapper into the widget's wrapper.\n\tviewWriter.insert( viewWriter.createPositionAt( widgetViewElement, 'end' ), typeAroundWrapper );\n}\n\n/**\n * FYI: Not using the IconView class because each instance would need to be destroyed to avoid memory leaks\n * and it's pretty hard to figure out when a view (widget) is gone for good so it's cheaper to use raw\n * <svg> here.\n */\nfunction injectButtons( wrapperDomElement: HTMLElement, buttonTitles: { before: string; after: string } ) {\n\tfor ( const position of POSSIBLE_INSERTION_POSITIONS ) {\n\t\tconst buttonTemplate = new Template( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-widget__type-around__button',\n\t\t\t\t\t`ck-widget__type-around__button_${ position }`\n\t\t\t\t],\n\t\t\t\ttitle: buttonTitles[ position ],\n\t\t\t\t'aria-hidden': 'true'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\twrapperDomElement.ownerDocument.importNode( RETURN_ARROW_ICON_ELEMENT, true )\n\t\t\t]\n\t\t} );\n\n\t\twrapperDomElement.appendChild( buttonTemplate.render() );\n\t}\n}\n\nfunction injectFakeCaret( wrapperDomElement: HTMLElement ) {\n\tconst caretTemplate = new Template( {\n\t\ttag: 'div',\n\t\tattributes: {\n\t\t\tclass: [\n\t\t\t\t'ck',\n\t\t\t\t'ck-widget__type-around__fake-caret'\n\t\t\t]\n\t\t}\n\t} );\n\n\twrapperDomElement.appendChild( caretTemplate.render() );\n}\n\n/**\n * Returns the ancestor of an element closest to the root which is empty. For instance,\n * for `<baz>`:\n *\n * ```\n * <foo>abc<bar><baz></baz></bar></foo>\n * ```\n *\n * it returns `<bar>`.\n */\nfunction getDeepestEmptyElementAncestor( schema: Schema, element: Element ) {\n\tlet deepestEmptyAncestor = element;\n\n\tfor ( const ancestor of element.getAncestors( { parentFirst: true } ) ) {\n\t\tif ( ( ancestor as any ).childCount > 1 || schema.isLimit( ancestor ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\tdeepestEmptyAncestor = ancestor as Element;\n\t}\n\n\treturn deepestEmptyAncestor;\n}\n","export default \"<svg viewBox=\\\"0 0 10 8\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M9.055.263v3.972h-6.77M1 4.216l2-2.038m-2 2 2 2.038\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/verticalnavigation\n */\n\nimport {\n\tkeyCodes,\n\tRect,\n\ttype GetCallback\n} from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDocumentSelection,\n\tEditingController,\n\tModel,\n\tPosition,\n\tRange,\n\tSchema,\n\tSelection,\n\tViewDocumentArrowKeyEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * Returns 'keydown' handler for up/down arrow keys that modifies the caret movement if it's in a text line next to an object.\n *\n * @param editing The editing controller.\n */\nexport default function verticalNavigationHandler(\n\tediting: EditingController\n): GetCallback<ViewDocumentArrowKeyEvent> {\n\tconst model = editing.model;\n\n\treturn ( evt, data ) => {\n\t\tconst arrowUpPressed = data.keyCode == keyCodes.arrowup;\n\t\tconst arrowDownPressed = data.keyCode == keyCodes.arrowdown;\n\t\tconst expandSelection = data.shiftKey;\n\t\tconst selection = model.document.selection;\n\n\t\tif ( !arrowUpPressed && !arrowDownPressed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst isForward = arrowDownPressed;\n\n\t\t// Navigation is in the opposite direction than the selection direction so this is shrinking of the selection.\n\t\t// Selection for sure will not approach any object.\n\t\tif ( expandSelection && selectionWillShrink( selection, isForward ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Find a range between selection and closest limit element.\n\t\tconst range = findTextRangeFromSelection( editing, selection, isForward );\n\n\t\t// There is no selection position inside the limit element.\n\t\tif ( !range ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If already at the edge of a limit element.\n\t\tif ( range.isCollapsed ) {\n\t\t\t// A collapsed selection at limit edge - nothing more to do.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// A non collapsed selection is at the limit edge while expanding the selection - let others do their stuff.\n\t\t\telse if ( expandSelection ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\t// If the range is a single line (there is no word wrapping) then move the selection to the position closest to the limit element.\n\t\t//\n\t\t// We can't move the selection directly to the isObject element (eg. table cell) because of dual position at the end/beginning\n\t\t// of wrapped line (it's at the same time at the end of one line and at the start of the next line).\n\t\tif ( range.isCollapsed || isSingleLineRange( editing, range, isForward ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\tconst newPosition = isForward ? range.end : range.start;\n\n\t\t\t\tif ( expandSelection ) {\n\t\t\t\t\tconst newSelection = model.createSelection( selection.anchor );\n\t\t\t\t\tnewSelection.setFocus( newPosition );\n\n\t\t\t\t\twriter.setSelection( newSelection );\n\t\t\t\t} else {\n\t\t\t\t\twriter.setSelection( newPosition );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tevt.stop();\n\t\t\tdata.preventDefault();\n\t\t\tdata.stopPropagation();\n\t\t}\n\t};\n}\n\n/**\n * Finds the range between selection and closest limit element (in the direction of navigation).\n * The position next to limit element is adjusted to the closest allowed `$text` position.\n *\n * Returns `null` if, according to the schema, the resulting range cannot contain a `$text` element.\n *\n * @param editing The editing controller.\n * @param selection The current selection.\n * @param isForward The expected navigation direction.\n */\nfunction findTextRangeFromSelection( editing: EditingController, selection: Selection | DocumentSelection, isForward: boolean ) {\n\tconst model = editing.model;\n\n\tif ( isForward ) {\n\t\tconst startPosition = selection.isCollapsed ? selection.focus! : selection.getLastPosition()!;\n\t\tconst endPosition = getNearestNonInlineLimit( model, startPosition, 'forward' );\n\n\t\t// There is no limit element, browser should handle this.\n\t\tif ( !endPosition ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = model.createRange( startPosition, endPosition );\n\t\tconst lastRangePosition = getNearestTextPosition( model.schema, range, 'backward' );\n\n\t\tif ( lastRangePosition ) {\n\t\t\treturn model.createRange( startPosition, lastRangePosition );\n\t\t}\n\n\t\treturn null;\n\t} else {\n\t\tconst endPosition = selection.isCollapsed ? selection.focus! : selection.getFirstPosition()!;\n\t\tconst startPosition = getNearestNonInlineLimit( model, endPosition, 'backward' );\n\n\t\t// There is no limit element, browser should handle this.\n\t\tif ( !startPosition ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst range = model.createRange( startPosition, endPosition );\n\t\tconst firstRangePosition = getNearestTextPosition( model.schema, range, 'forward' );\n\n\t\tif ( firstRangePosition ) {\n\t\t\treturn model.createRange( firstRangePosition, endPosition );\n\t\t}\n\n\t\treturn null;\n\t}\n}\n\n/**\n * Finds the limit element position that is closest to startPosition.\n *\n * @param direction Search direction.\n */\nfunction getNearestNonInlineLimit( model: Model, startPosition: Position, direction: 'forward' | 'backward' ) {\n\tconst schema = model.schema;\n\tconst range = model.createRangeIn( startPosition.root );\n\n\tconst walkerValueType = direction == 'forward' ? 'elementStart' : 'elementEnd';\n\n\tfor ( const { previousPosition, item, type } of range.getWalker( { startPosition, direction } ) ) {\n\t\tif ( schema.isLimit( item ) && !schema.isInline( item ) ) {\n\t\t\treturn previousPosition;\n\t\t}\n\n\t\t// Stop looking for isLimit element if the next element is a block element (it is for sure not single line).\n\t\tif ( type == walkerValueType && schema.isBlock( item ) ) {\n\t\t\treturn null;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Basing on the provided range, finds the first or last (depending on `direction`) position inside the range\n * that can contain `$text` (according to schema).\n *\n * @param schema The schema.\n * @param range The range to find the position in.\n * @param direction Search direction.\n * @returns The nearest selection position.\n *\n */\nfunction getNearestTextPosition( schema: Schema, range: Range, direction: 'forward' | 'backward' ) {\n\tconst position = direction == 'backward' ? range.end : range.start;\n\n\tif ( schema.checkChild( position, '$text' ) ) {\n\t\treturn position;\n\t}\n\n\tfor ( const { nextPosition } of range.getWalker( { direction } ) ) {\n\t\tif ( schema.checkChild( nextPosition, '$text' ) ) {\n\t\t\treturn nextPosition;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Checks if the DOM range corresponding to the provided model range renders as a single line by analyzing DOMRects\n * (verifying if they visually wrap content to the next line).\n *\n * @param editing The editing controller.\n * @param modelRange The current table cell content range.\n * @param isForward The expected navigation direction.\n */\nfunction isSingleLineRange( editing: EditingController, modelRange: Range, isForward: boolean ) {\n\tconst model = editing.model;\n\tconst domConverter = editing.view.domConverter;\n\n\t// Wrapped lines contain exactly the same position at the end of current line\n\t// and at the beginning of next line. That position's client rect is at the end\n\t// of current line. In case of caret at first position of the last line that 'dual'\n\t// position would be detected as it's not the last line.\n\tif ( isForward ) {\n\t\tconst probe = model.createSelection( modelRange.start );\n\n\t\tmodel.modifySelection( probe );\n\n\t\t// If the new position is at the end of the container then we can't use this position\n\t\t// because it would provide incorrect result for eg caption of image and selection\n\t\t// just before end of it. Also in this case there is no \"dual\" position.\n\t\tif ( !probe.focus!.isAtEnd && !modelRange.start.isEqual( probe.focus! ) ) {\n\t\t\tmodelRange = model.createRange( probe.focus!, modelRange.end );\n\t\t}\n\t}\n\n\tconst viewRange = editing.mapper.toViewRange( modelRange );\n\tconst domRange = domConverter.viewRangeToDom( viewRange );\n\tconst rects = Rect.getDomRangeRects( domRange );\n\n\tlet boundaryVerticalPosition;\n\n\tfor ( const rect of rects ) {\n\t\tif ( boundaryVerticalPosition === undefined ) {\n\t\t\tboundaryVerticalPosition = Math.round( rect.bottom );\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Let's check if this rect is in new line.\n\t\tif ( Math.round( rect.top ) >= boundaryVerticalPosition ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tboundaryVerticalPosition = Math.max( boundaryVerticalPosition, Math.round( rect.bottom ) );\n\t}\n\n\treturn true;\n}\n\nfunction selectionWillShrink( selection: DocumentSelection, isForward: boolean ) {\n\treturn !selection.isCollapsed && selection.isBackward == isForward;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./widget.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widget\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\nimport {\n\tMouseObserver,\n\ttype DomEventData,\n\ttype DowncastSelectionEvent,\n\ttype DowncastWriter,\n\ttype Element,\n\ttype Node,\n\ttype ViewDocumentArrowKeyEvent,\n\ttype ViewDocumentFragment,\n\ttype ViewDocumentMouseDownEvent,\n\ttype ViewElement\n} from '@ckeditor/ckeditor5-engine';\n\nimport { Delete, type ViewDocumentDeleteEvent } from '@ckeditor/ckeditor5-typing';\n\nimport {\n\tenv,\n\tgetLocalizedArrowKeyCodeDirection,\n\ttype EventInfo,\n\ttype KeystrokeInfo\n} from '@ckeditor/ckeditor5-utils';\n\nimport WidgetTypeAround from './widgettypearound/widgettypearound';\nimport verticalNavigationHandler from './verticalnavigation';\nimport { getLabel, isWidget, WIDGET_SELECTED_CLASS_NAME } from './utils';\n\nimport '../theme/widget.css';\n\n/**\n * The widget plugin. It enables base support for widgets.\n *\n * See {@glink api/widget package page} for more details and documentation.\n *\n * This plugin enables multiple behaviors required by widgets:\n *\n * * The model to view selection converter for the editing pipeline (it handles widget custom selection rendering).\n * If a converted selection wraps around a widget element, that selection is marked as\n * {@link module:engine/view/selection~Selection#isFake fake}. Additionally, the `ck-widget_selected` CSS class\n * is added to indicate that widget has been selected.\n * * The mouse and keyboard events handling on and around widget elements.\n */\nexport default class Widget extends Plugin {\n\t/**\n\t * Holds previously selected widgets.\n\t */\n\tprivate _previouslySelected = new Set<ViewElement>();\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Widget' {\n\t\treturn 'Widget';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ WidgetTypeAround, Delete ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Model to view selection converter.\n\t\t// Converts selection placed over widget element to fake selection.\n\t\t//\n\t\t// By default, the selection is downcasted by the engine to surround the attribute element, even though its only\n\t\t// child is an inline widget. A similar thing also happens when a collapsed marker is rendered as a UI element\n\t\t// next to an inline widget: the view selection contains both the widget and the marker.\n\t\t//\n\t\t// This prevents creating a correct fake selection when this inline widget is selected. Normalize the selection\n\t\t// in these cases based on the model:\n\t\t//\n\t\t//\t\t[<attributeElement><inlineWidget /></attributeElement>] -> <attributeElement>[<inlineWidget />]</attributeElement>\n\t\t//\t\t[<uiElement></uiElement><inlineWidget />] -> <uiElement></uiElement>[<inlineWidget />]\n\t\t//\n\t\t// Thanks to this:\n\t\t//\n\t\t// * fake selection can be set correctly,\n\t\t// * any logic depending on (View)Selection#getSelectedElement() also works OK.\n\t\t//\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/9524.\n\t\tthis.editor.editing.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', ( evt, data, conversionApi ) => {\n\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\tconst modelSelection = data.selection;\n\n\t\t\t// The collapsed selection can't contain any widget.\n\t\t\tif ( modelSelection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedModelElement = modelSelection.getSelectedElement();\n\n\t\t\tif ( !selectedModelElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selectedViewElement = editor.editing.mapper.toViewElement( selectedModelElement )!;\n\n\t\t\tif ( !isWidget( selectedViewElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !conversionApi.consumable.consume( modelSelection, 'selection' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tviewWriter.setSelection( viewWriter.createRangeOn( selectedViewElement ), {\n\t\t\t\tfake: true,\n\t\t\t\tlabel: getLabel( selectedViewElement )\n\t\t\t} );\n\t\t} );\n\n\t\t// Mark all widgets inside the selection with the css class.\n\t\t// This handler is registered at the 'low' priority so it's triggered after the real selection conversion.\n\t\tthis.editor.editing.downcastDispatcher.on<DowncastSelectionEvent>( 'selection', ( evt, data, conversionApi ) => {\n\t\t\t// Remove selected class from previously selected widgets.\n\t\t\tthis._clearPreviouslySelectedWidgets( conversionApi.writer );\n\n\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\t\tlet lastMarked = null;\n\n\t\t\tfor ( const range of viewSelection.getRanges() ) {\n\t\t\t\t// Note: There could be multiple selected widgets in a range but no fake selection.\n\t\t\t\t// All of them must be marked as selected, for instance [<widget></widget><widget></widget>]\n\t\t\t\tfor ( const value of range ) {\n\t\t\t\t\tconst node = value.item as ViewElement;\n\t\t\t\t\t// Do not mark nested widgets in selected one. See: #4594\n\t\t\t\t\tif ( isWidget( node ) && !isChild( node, lastMarked ) ) {\n\t\t\t\t\t\tviewWriter.addClass( WIDGET_SELECTED_CLASS_NAME, node );\n\t\t\t\t\t\tthis._previouslySelected.add( node );\n\t\t\t\t\t\tlastMarked = node;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\t// If mouse down is pressed on widget - create selection over whole widget.\n\t\tview.addObserver( MouseObserver );\n\t\tthis.listenTo<ViewDocumentMouseDownEvent>( viewDocument, 'mousedown', ( ...args ) => this._onMousedown( ...args ) );\n\n\t\t// There are two keydown listeners working on different priorities. This allows other\n\t\t// features such as WidgetTypeAround or TableKeyboard to attach their listeners in between\n\t\t// and customize the behavior even further in different content/selection scenarios.\n\t\t//\n\t\t// * The first listener handles changing the selection on arrow key press\n\t\t// if the widget is selected or if the selection is next to a widget and the widget\n\t\t// should become selected upon the arrow key press.\n\t\t//\n\t\t// * The second (late) listener makes sure the default browser action on arrow key press is\n\t\t// prevented when a widget is selected. This prevents the selection from being moved\n\t\t// from a fake selection container.\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>( viewDocument, 'arrowKey', ( ...args ) => {\n\t\t\tthis._handleSelectionChangeOnArrowKeyPress( ...args );\n\t\t}, { context: [ isWidget, '$text' ] } );\n\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>( viewDocument, 'arrowKey', ( ...args ) => {\n\t\t\tthis._preventDefaultOnArrowKeyPress( ...args );\n\t\t}, { context: '$root' } );\n\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>(\n\t\t\tviewDocument,\n\t\t\t'arrowKey',\n\t\t\tverticalNavigationHandler( this.editor.editing ),\n\t\t\t{ context: '$text' }\n\t\t);\n\n\t\t// Handle custom delete behaviour.\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\tif ( this._handleDelete( data.direction == 'forward' ) ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: '$root' } );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:mousedown mousedown} events on widget elements.\n\t */\n\tprivate _onMousedown( eventInfo: EventInfo, domEventData: DomEventData<MouseEvent> ) {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tlet element: ViewElement | null = domEventData.target;\n\n\t\t// Do nothing for single or double click inside nested editable.\n\t\tif ( isInsideNestedEditable( element ) ) {\n\t\t\t// But at least triple click inside nested editable causes broken selection in Safari.\n\t\t\t// For such event, we select the entire nested editable element.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5/issues/1463.\n\t\t\tif ( ( env.isSafari || env.isGecko ) && domEventData.domEvent.detail >= 3 ) {\n\t\t\t\tconst mapper = editor.editing.mapper;\n\t\t\t\tconst viewElement = element.is( 'attributeElement' ) ?\n\t\t\t\t\telement.findAncestor( element => !element.is( 'attributeElement' ) )! : element;\n\t\t\t\tconst modelElement = mapper.toModelElement( viewElement )!;\n\n\t\t\t\tdomEventData.preventDefault();\n\n\t\t\t\tthis.editor.model.change( writer => {\n\t\t\t\t\twriter.setSelection( modelElement, 'in' );\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// If target is not a widget element - check if one of the ancestors is.\n\t\tif ( !isWidget( element ) ) {\n\t\t\telement = element.findAncestor( isWidget );\n\n\t\t\tif ( !element ) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\t// On Android selection would jump to the first table cell, on other devices\n\t\t// we can't block it (and don't need to) because of drag and drop support.\n\t\tif ( env.isAndroid ) {\n\t\t\tdomEventData.preventDefault();\n\t\t}\n\n\t\t// Focus editor if is not focused already.\n\t\tif ( !viewDocument.isFocused ) {\n\t\t\tview.focus();\n\t\t}\n\n\t\t// Create model selection over widget.\n\t\tconst modelElement = editor.editing.mapper.toModelElement( element );\n\n\t\tthis._setSelectionOverElement( modelElement! );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:keydown keydown} events and changes\n\t * the model selection when:\n\t *\n\t * * arrow key is pressed when the widget is selected,\n\t * * the selection is next to a widget and the widget should become selected upon the arrow key press.\n\t *\n\t * See {@link #_preventDefaultOnArrowKeyPress}.\n\t */\n\tprivate _handleSelectionChangeOnArrowKeyPress( eventInfo: EventInfo, domEventData: DomEventData & KeystrokeInfo ) {\n\t\tconst keyCode = domEventData.keyCode;\n\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst modelSelection = model.document.selection;\n\t\tconst objectElement = modelSelection.getSelectedElement();\n\t\tconst direction = getLocalizedArrowKeyCodeDirection( keyCode, this.editor.locale.contentLanguageDirection );\n\t\tconst isForward = direction == 'down' || direction == 'right';\n\t\tconst isVerticalNavigation = direction == 'up' || direction == 'down';\n\n\t\t// If object element is selected.\n\t\tif ( objectElement && schema.isObject( objectElement ) ) {\n\t\t\tconst position = isForward ? modelSelection.getLastPosition() : modelSelection.getFirstPosition();\n\t\t\tconst newRange = schema.getNearestSelectionRange( position!, isForward ? 'forward' : 'backward' );\n\n\t\t\tif ( newRange ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\twriter.setSelection( newRange );\n\t\t\t\t} );\n\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t\teventInfo.stop();\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Handle collapsing of the selection when there is any widget on the edge of selection.\n\t\t// This is needed because browsers have problems with collapsing such selection.\n\t\tif ( !modelSelection.isCollapsed && !domEventData.shiftKey ) {\n\t\t\tconst firstPosition = modelSelection.getFirstPosition();\n\t\t\tconst lastPosition = modelSelection.getLastPosition();\n\n\t\t\tconst firstSelectedNode = firstPosition!.nodeAfter;\n\t\t\tconst lastSelectedNode = lastPosition!.nodeBefore;\n\n\t\t\tif ( firstSelectedNode && schema.isObject( firstSelectedNode ) || lastSelectedNode && schema.isObject( lastSelectedNode ) ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\twriter.setSelection( isForward ? lastPosition : firstPosition );\n\t\t\t\t} );\n\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t\teventInfo.stop();\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Return if not collapsed.\n\t\tif ( !modelSelection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If selection is next to object element.\n\n\t\tconst objectElementNextToSelection = this._getObjectElementNextToSelection( isForward );\n\n\t\tif ( objectElementNextToSelection && schema.isObject( objectElementNextToSelection ) ) {\n\t\t\t// Do not select an inline widget while handling up/down arrow.\n\t\t\tif ( schema.isInline( objectElementNextToSelection ) && isVerticalNavigation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._setSelectionOverElement( objectElementNextToSelection );\n\n\t\t\tdomEventData.preventDefault();\n\t\t\teventInfo.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:keydown keydown} events and prevents\n\t * the default browser behavior to make sure the fake selection is not being moved from a fake selection\n\t * container.\n\t *\n\t * See {@link #_handleSelectionChangeOnArrowKeyPress}.\n\t */\n\tprivate _preventDefaultOnArrowKeyPress( eventInfo: EventInfo, domEventData: DomEventData ) {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst objectElement = model.document.selection.getSelectedElement();\n\n\t\t// If object element is selected.\n\t\tif ( objectElement && schema.isObject( objectElement ) ) {\n\t\t\tdomEventData.preventDefault();\n\t\t\teventInfo.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles delete keys: backspace and delete.\n\t *\n\t * @param isForward Set to true if delete was performed in forward direction.\n\t * @returns Returns `true` if keys were handled correctly.\n\t */\n\tprivate _handleDelete( isForward: boolean ) {\n\t\t// Do nothing when the read only mode is enabled.\n\t\tif ( this.editor.isReadOnly ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelDocument = this.editor.model.document;\n\t\tconst modelSelection = modelDocument.selection;\n\n\t\t// Do nothing on non-collapsed selection.\n\t\tif ( !modelSelection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst objectElement = this._getObjectElementNextToSelection( isForward );\n\n\t\tif ( objectElement ) {\n\t\t\tthis.editor.model.change( writer => {\n\t\t\t\tlet previousNode = modelSelection.anchor!.parent;\n\n\t\t\t\t// Remove previous element if empty.\n\t\t\t\twhile ( previousNode.isEmpty ) {\n\t\t\t\t\tconst nodeToRemove = previousNode;\n\t\t\t\t\tpreviousNode = nodeToRemove.parent!;\n\n\t\t\t\t\twriter.remove( nodeToRemove as Element );\n\t\t\t\t}\n\n\t\t\t\tthis._setSelectionOverElement( objectElement );\n\t\t\t} );\n\n\t\t\treturn true;\n\t\t}\n\t}\n\n\t/**\n\t * Sets {@link module:engine/model/selection~Selection document's selection} over given element.\n\t *\n\t * @internal\n\t */\n\tpublic _setSelectionOverElement( element: Node ): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\twriter.setSelection( writer.createRangeOn( element ) );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks if {@link module:engine/model/element~Element element} placed next to the current\n\t * {@link module:engine/model/selection~Selection model selection} exists and is marked in\n\t * {@link module:engine/model/schema~Schema schema} as `object`.\n\t *\n\t * @internal\n\t * @param forward Direction of checking.\n\t */\n\tpublic _getObjectElementNextToSelection( forward: boolean ): Element | null {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst modelSelection = model.document.selection;\n\n\t\t// Clone current selection to use it as a probe. We must leave default selection as it is so it can return\n\t\t// to its current state after undo.\n\t\tconst probe = model.createSelection( modelSelection );\n\t\tmodel.modifySelection( probe, { direction: forward ? 'forward' : 'backward' } );\n\n\t\t// The selection didn't change so there is nothing there.\n\t\tif ( probe.isEqual( modelSelection ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst objectElement = forward ? probe.focus!.nodeBefore : probe.focus!.nodeAfter;\n\n\t\tif ( !!objectElement && schema.isObject( objectElement ) ) {\n\t\t\treturn objectElement as Element;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Removes CSS class from previously selected widgets.\n\t */\n\tprivate _clearPreviouslySelectedWidgets( writer: DowncastWriter ) {\n\t\tfor ( const widget of this._previouslySelected ) {\n\t\t\twriter.removeClass( WIDGET_SELECTED_CLASS_NAME, widget );\n\t\t}\n\n\t\tthis._previouslySelected.clear();\n\t}\n}\n\n/**\n * Returns `true` when element is a nested editable or is placed inside one.\n */\nfunction isInsideNestedEditable( element: ViewElement ) {\n\tlet currentElement: ViewElement | ViewDocumentFragment | null = element;\n\n\twhile ( currentElement ) {\n\t\tif ( currentElement.is( 'editableElement' ) && !currentElement.is( 'rootElement' ) ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Click on nested widget should select it.\n\t\tif ( isWidget( currentElement ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tcurrentElement = currentElement.parent;\n\t}\n\n\treturn false;\n}\n\n/**\n * Checks whether the specified `element` is a child of the `parent` element.\n *\n * @param element An element to check.\n * @param parent A parent for the element.\n */\nfunction isChild( element: ViewElement, parent: ViewElement | null ) {\n\tif ( !parent ) {\n\t\treturn false;\n\t}\n\n\treturn Array.from( element.getAncestors() ).includes( parent );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgettoolbarrepository\n */\n\nimport {\n\tPlugin,\n\ttype Editor,\n\ttype ToolbarConfigItem\n} from '@ckeditor/ckeditor5-core';\n\nimport type { ViewDocumentSelection, ViewElement } from '@ckeditor/ckeditor5-engine';\n\nimport {\n\tBalloonPanelView,\n\tContextualBalloon,\n\tToolbarView,\n\ttype BalloonToolbar,\n\ttype BalloonToolbarShowEvent,\n\ttype EditorUIUpdateEvent\n} from '@ckeditor/ckeditor5-ui';\n\nimport {\n\tCKEditorError,\n\tlogWarning,\n\ttype ObservableChangeEvent,\n\ttype RectSource\n} from '@ckeditor/ckeditor5-utils';\n\nimport { isWidget } from './utils';\n\n/**\n * Widget toolbar repository plugin. A central point for registering widget toolbars. This plugin handles the whole\n * toolbar rendering process and exposes a concise API.\n *\n * To add a toolbar for your widget use the {@link ~WidgetToolbarRepository#register `WidgetToolbarRepository#register()`} method.\n *\n * The following example comes from the {@link module:image/imagetoolbar~ImageToolbar} plugin:\n *\n * ```ts\n * class ImageToolbar extends Plugin {\n * \tstatic get requires() {\n * \t\treturn [ WidgetToolbarRepository ];\n * \t}\n *\n * \tafterInit() {\n * \t\tconst editor = this.editor;\n * \t\tconst widgetToolbarRepository = editor.plugins.get( WidgetToolbarRepository );\n *\n * \t\twidgetToolbarRepository.register( 'image', {\n * \t\t\titems: editor.config.get( 'image.toolbar' ),\n * \t\t\tgetRelatedElement: getClosestSelectedImageWidget\n * \t\t} );\n * \t}\n * }\n * ```\n */\nexport default class WidgetToolbarRepository extends Plugin {\n\t/**\n\t * A map of toolbar definitions.\n\t */\n\tprivate _toolbarDefinitions = new Map<string, WidgetRepositoryToolbarDefinition>();\n\n\tprivate _balloon!: ContextualBalloon;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ContextualBalloon ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'WidgetToolbarRepository' {\n\t\treturn 'WidgetToolbarRepository';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Disables the default balloon toolbar for all widgets.\n\t\tif ( editor.plugins.has( 'BalloonToolbar' ) ) {\n\t\t\tconst balloonToolbar: BalloonToolbar = editor.plugins.get( 'BalloonToolbar' );\n\n\t\t\tthis.listenTo<BalloonToolbarShowEvent>( balloonToolbar, 'show', evt => {\n\t\t\t\tif ( isWidgetSelected( editor.editing.view.document.selection ) ) {\n\t\t\t\t\tevt.stop();\n\t\t\t\t}\n\t\t\t}, { priority: 'high' } );\n\t\t}\n\n\t\tthis._balloon = this.editor.plugins.get( 'ContextualBalloon' );\n\n\t\tthis.on<ObservableChangeEvent>( 'change:isEnabled', () => {\n\t\t\tthis._updateToolbarsVisibility();\n\t\t} );\n\n\t\tthis.listenTo<EditorUIUpdateEvent>( editor.ui, 'update', () => {\n\t\t\tthis._updateToolbarsVisibility();\n\t\t} );\n\n\t\t// UI#update is not fired after focus is back in editor, we need to check if balloon panel should be visible.\n\t\tthis.listenTo<ObservableChangeEvent>( editor.ui.focusTracker, 'change:isFocused', () => {\n\t\t\tthis._updateToolbarsVisibility();\n\t\t}, { priority: 'low' } );\n\t}\n\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tfor ( const toolbarConfig of this._toolbarDefinitions.values() ) {\n\t\t\ttoolbarConfig.view.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Registers toolbar in the WidgetToolbarRepository. It renders it in the `ContextualBalloon` based on the value of the invoked\n\t * `getRelatedElement` function. Toolbar items are gathered from `items` array.\n\t * The balloon's CSS class is by default `ck-toolbar-container` and may be override with the `balloonClassName` option.\n\t *\n\t * Note: This method should be called in the {@link module:core/plugin~PluginInterface#afterInit `Plugin#afterInit()`}\n\t * callback (or later) to make sure that the given toolbar items were already registered by other plugins.\n\t *\n\t * @param toolbarId An id for the toolbar. Used to\n\t * @param options.ariaLabel Label used by assistive technologies to describe this toolbar element.\n\t * @param options.items Array of toolbar items.\n\t * @param options.getRelatedElement Callback which returns an element the toolbar should be attached to.\n\t * @param options.balloonClassName CSS class for the widget balloon.\n\t */\n\tpublic register(\n\t\ttoolbarId: string,\n\t\t{ ariaLabel, items, getRelatedElement, balloonClassName = 'ck-toolbar-container' }: {\n\t\t\tariaLabel?: string;\n\t\t\titems: Array<ToolbarConfigItem>;\n\t\t\tgetRelatedElement: ( selection: ViewDocumentSelection ) => ( ViewElement | null );\n\t\t\tballoonClassName?: string;\n\t\t}\n\t): void {\n\t\t// Trying to register a toolbar without any item.\n\t\tif ( !items.length ) {\n\t\t\t/**\n\t\t\t * When {@link module:widget/widgettoolbarrepository~WidgetToolbarRepository#register registering} a new widget toolbar, you\n\t\t\t * need to provide a non-empty array with the items that will be inserted into the toolbar.\n\t\t\t *\n\t\t\t * If you see this error when integrating the editor, you likely forgot to configure one of the widget toolbars.\n\t\t\t *\n\t\t\t * See for instance:\n\t\t\t *\n\t\t\t * * {@link module:table/tableconfig~TableConfig#contentToolbar `config.table.contentToolbar`}\n\t\t\t * * {@link module:image/imageconfig~ImageConfig#toolbar `config.image.toolbar`}\n\t\t\t *\n\t\t\t * @error widget-toolbar-no-items\n\t\t\t * @param toolbarId The id of the toolbar that has not been configured correctly.\n\t\t\t */\n\t\t\tlogWarning( 'widget-toolbar-no-items', { toolbarId } );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst toolbarView = new ToolbarView( editor.locale );\n\n\t\ttoolbarView.ariaLabel = ariaLabel || t( 'Widget toolbar' );\n\n\t\tif ( this._toolbarDefinitions.has( toolbarId ) ) {\n\t\t\t/**\n\t\t\t * Toolbar with the given id was already added.\n\t\t\t *\n\t\t\t * @error widget-toolbar-duplicated\n\t\t\t * @param toolbarId Toolbar id.\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'widget-toolbar-duplicated', this, { toolbarId } );\n\t\t}\n\n\t\tconst toolbarDefinition = {\n\t\t\tview: toolbarView,\n\t\t\tgetRelatedElement,\n\t\t\tballoonClassName,\n\t\t\titemsConfig: items,\n\t\t\tinitialized: false\n\t\t};\n\n\t\t// Register the toolbar so it becomes available for Alt+F10 and Esc navigation.\n\t\teditor.ui.addToolbar( toolbarView, {\n\t\t\tisContextual: true,\n\t\t\tbeforeFocus: () => {\n\t\t\t\tconst relatedElement = getRelatedElement( editor.editing.view.document.selection );\n\n\t\t\t\tif ( relatedElement ) {\n\t\t\t\t\tthis._showToolbar( toolbarDefinition, relatedElement );\n\t\t\t\t}\n\t\t\t},\n\t\t\tafterBlur: () => {\n\t\t\t\tthis._hideToolbar( toolbarDefinition );\n\t\t\t}\n\t\t} );\n\n\t\tthis._toolbarDefinitions.set( toolbarId, toolbarDefinition );\n\t}\n\n\t/**\n\t * Iterates over stored toolbars and makes them visible or hidden.\n\t */\n\tprivate _updateToolbarsVisibility() {\n\t\tlet maxRelatedElementDepth = 0;\n\t\tlet deepestRelatedElement = null;\n\t\tlet deepestToolbarDefinition = null;\n\n\t\tfor ( const definition of this._toolbarDefinitions.values() ) {\n\t\t\tconst relatedElement = definition.getRelatedElement( this.editor.editing.view.document.selection );\n\n\t\t\tif ( !this.isEnabled || !relatedElement ) {\n\t\t\t\tif ( this._isToolbarInBalloon( definition ) ) {\n\t\t\t\t\tthis._hideToolbar( definition );\n\t\t\t\t}\n\t\t\t} else if ( !this.editor.ui.focusTracker.isFocused ) {\n\t\t\t\tif ( this._isToolbarVisible( definition ) ) {\n\t\t\t\t\tthis._hideToolbar( definition );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst relatedElementDepth = relatedElement.getAncestors().length;\n\n\t\t\t\t// Many toolbars can express willingness to be displayed but they do not know about\n\t\t\t\t// each other. Figure out which toolbar is deepest in the view tree to decide which\n\t\t\t\t// should be displayed. For instance, if a selected image is inside a table cell, display\n\t\t\t\t// the ImageToolbar rather than the TableToolbar (#60).\n\t\t\t\tif ( relatedElementDepth > maxRelatedElementDepth ) {\n\t\t\t\t\tmaxRelatedElementDepth = relatedElementDepth;\n\t\t\t\t\tdeepestRelatedElement = relatedElement;\n\t\t\t\t\tdeepestToolbarDefinition = definition;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( deepestToolbarDefinition ) {\n\t\t\tthis._showToolbar( deepestToolbarDefinition, deepestRelatedElement! );\n\t\t}\n\t}\n\n\t/**\n\t * Hides the given toolbar.\n\t */\n\tprivate _hideToolbar( toolbarDefinition: WidgetRepositoryToolbarDefinition ) {\n\t\tthis._balloon.remove( toolbarDefinition.view );\n\t\tthis.stopListening( this._balloon, 'change:visibleView' );\n\t}\n\n\t/**\n\t * Shows up the toolbar if the toolbar is not visible.\n\t * Otherwise, repositions the toolbar's balloon when toolbar's view is the most top view in balloon stack.\n\t *\n\t * It might happen here that the toolbar's view is under another view. Then do nothing as the other toolbar view\n\t * should be still visible after the {@link module:ui/editorui/editorui~EditorUI#event:update}.\n\t */\n\tprivate _showToolbar( toolbarDefinition: WidgetRepositoryToolbarDefinition, relatedElement: ViewElement ) {\n\t\tif ( this._isToolbarVisible( toolbarDefinition ) ) {\n\t\t\trepositionContextualBalloon( this.editor, relatedElement );\n\t\t} else if ( !this._isToolbarInBalloon( toolbarDefinition ) ) {\n\t\t\tif ( !toolbarDefinition.initialized ) {\n\t\t\t\ttoolbarDefinition.initialized = true;\n\t\t\t\ttoolbarDefinition.view.fillFromConfig( toolbarDefinition.itemsConfig, this.editor.ui.componentFactory );\n\t\t\t}\n\n\t\t\tthis._balloon.add( {\n\t\t\t\tview: toolbarDefinition.view,\n\t\t\t\tposition: getBalloonPositionData( this.editor, relatedElement ),\n\t\t\t\tballoonClassName: toolbarDefinition.balloonClassName\n\t\t\t} );\n\n\t\t\t// Update toolbar position each time stack with toolbar view is switched to visible.\n\t\t\t// This is in a case target element has changed when toolbar was in invisible stack\n\t\t\t// e.g. target image was wrapped by a block quote.\n\t\t\t// See https://github.com/ckeditor/ckeditor5-widget/issues/92.\n\t\t\tthis.listenTo<ObservableChangeEvent>( this._balloon, 'change:visibleView', () => {\n\t\t\t\tfor ( const definition of this._toolbarDefinitions.values() ) {\n\t\t\t\t\tif ( this._isToolbarVisible( definition ) ) {\n\t\t\t\t\t\tconst relatedElement = definition.getRelatedElement( this.editor.editing.view.document.selection );\n\t\t\t\t\t\trepositionContextualBalloon( this.editor, relatedElement! );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\t}\n\n\tprivate _isToolbarVisible( toolbar: WidgetRepositoryToolbarDefinition ) {\n\t\treturn this._balloon.visibleView === toolbar.view;\n\t}\n\n\tprivate _isToolbarInBalloon( toolbar: WidgetRepositoryToolbarDefinition ) {\n\t\treturn this._balloon.hasView( toolbar.view );\n\t}\n}\n\nfunction repositionContextualBalloon( editor: Editor, relatedElement: ViewElement ) {\n\tconst balloon: ContextualBalloon = editor.plugins.get( 'ContextualBalloon' );\n\tconst position = getBalloonPositionData( editor, relatedElement );\n\n\tballoon.updatePosition( position );\n}\n\nfunction getBalloonPositionData( editor: Editor, relatedElement: ViewElement ) {\n\tconst editingView = editor.editing.view;\n\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\n\treturn {\n\t\ttarget: editingView.domConverter.mapViewToDom( relatedElement ) as RectSource | undefined,\n\t\tpositions: [\n\t\t\tdefaultPositions.northArrowSouth,\n\t\t\tdefaultPositions.northArrowSouthWest,\n\t\t\tdefaultPositions.northArrowSouthEast,\n\t\t\tdefaultPositions.southArrowNorth,\n\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\tdefaultPositions.viewportStickyNorth\n\t\t]\n\t};\n}\n\nfunction isWidgetSelected( selection: ViewDocumentSelection ) {\n\tconst viewElement = selection.getSelectedElement();\n\n\treturn !!( viewElement && isWidget( viewElement ) );\n}\n\n/**\n * The toolbar definition object used by the toolbar repository to manage toolbars.\n * It contains information necessary to display the toolbar in the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} and\n * update it during its life (display) cycle.\n */\ninterface WidgetRepositoryToolbarDefinition {\n\n\t/**\n\t * The UI view of the toolbar.\n\t */\n\tview: ToolbarView;\n\n\t/**\n\t * A function that returns an engine {@link module:engine/view/view~View}\n\t * element the toolbar is to be attached to. For instance, an image widget or a table widget (or `null` when\n\t * there is no such element). The function accepts an instance of {@link module:engine/view/selection~Selection}.\n\t */\n\tgetRelatedElement: ( selection: ViewDocumentSelection ) => ViewElement | null | undefined;\n\n\t/**\n\t * CSS class for the widget balloon when a toolbar is displayed.\n\t */\n\tballoonClassName: string;\n\n\titemsConfig: Array<ToolbarConfigItem>;\n\n\tinitialized: boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize/resizerstate\n */\n\nimport { ObservableMixin, Rect } from '@ckeditor/ckeditor5-utils';\n\nimport type { ResizerOptions } from '../widgetresize';\n\n/**\n * Stores the internal state of a single resizable object.\n */\nexport default class ResizeState extends ObservableMixin() {\n\t/**\n\t * The position of the handle that initiated the resizing. E.g. `\"top-left\"`, `\"bottom-right\"` etc. or `null`\n\t * if unknown.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public activeHandlePosition: string | null;\n\n\t/**\n\t * The width (percents) proposed, but not committed yet, in the current resize process.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public proposedWidthPercents: number | null;\n\n\t/**\n\t * The width (pixels) proposed, but not committed yet, in the current resize process.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public proposedWidth: number | null;\n\n\t/**\n\t * The height (pixels) proposed, but not committed yet, in the current resize process.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public proposedHeight: number | null;\n\n\t/**\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public proposedHandleHostWidth: number | null;\n\n\t/**\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public proposedHandleHostHeight: number | null;\n\n\t/**\n\t * The reference point of the resizer where the dragging started. It is used to measure the distance the user cursor\n\t * traveled, so how much the image should be enlarged.\n\t * This information is only known after the DOM was rendered, so it will be updated later.\n\t *\n\t * @internal\n\t */\n\tpublic _referenceCoordinates: { x: number; y: number } | null;\n\n\t/**\n\t * Resizer options.\n\t */\n\tprivate readonly _options: ResizerOptions;\n\n\t/**\n\t * The original width (pixels) of the resized object when the resize process was started.\n\t *\n\t * @readonly\n\t */\n\tprivate _originalWidth?: number;\n\n\t/**\n\t * The original height (pixels) of the resized object when the resize process was started.\n\t *\n\t * @readonly\n\t */\n\tprivate _originalHeight?: number;\n\n\t/**\n\t * The original width (percents) of the resized object when the resize process was started.\n\t *\n\t * @readonly\n\t */\n\tprivate _originalWidthPercents?: number;\n\n\t/**\n\t * A width to height ratio of the resized image.\n\t *\n\t * @readonly\n\t */\n\tprivate _aspectRatio?: number;\n\n\t/**\n\t * @param options Resizer options.\n\t */\n\tconstructor( options: ResizerOptions ) {\n\t\tsuper();\n\n\t\tthis.set( 'activeHandlePosition', null );\n\t\tthis.set( 'proposedWidthPercents', null );\n\t\tthis.set( 'proposedWidth', null );\n\t\tthis.set( 'proposedHeight', null );\n\t\tthis.set( 'proposedHandleHostWidth', null );\n\t\tthis.set( 'proposedHandleHostHeight', null );\n\n\t\tthis._options = options;\n\t\tthis._referenceCoordinates = null;\n\t}\n\n\t/**\n\t * The original width (pixels) of the resized object when the resize process was started.\n\t */\n\tpublic get originalWidth(): number | undefined {\n\t\treturn this._originalWidth;\n\t}\n\n\t/**\n\t * The original height (pixels) of the resized object when the resize process was started.\n\t */\n\tpublic get originalHeight(): number | undefined {\n\t\treturn this._originalHeight;\n\t}\n\n\t/**\n\t * The original width (percents) of the resized object when the resize process was started.\n\t */\n\tpublic get originalWidthPercents(): number | undefined {\n\t\treturn this._originalWidthPercents;\n\t}\n\n\t/**\n\t * A width to height ratio of the resized image.\n\t */\n\tpublic get aspectRatio(): number | undefined {\n\t\treturn this._aspectRatio;\n\t}\n\n\t/**\n\t *\n\t * @param domResizeHandle The handle used to calculate the reference point.\n\t */\n\tpublic begin( domResizeHandle: HTMLElement, domHandleHost: HTMLElement, domResizeHost: HTMLElement ): void {\n\t\tconst clientRect = new Rect( domHandleHost );\n\n\t\tthis.activeHandlePosition = getHandlePosition( domResizeHandle )!;\n\n\t\tthis._referenceCoordinates = getAbsoluteBoundaryPoint( domHandleHost, getOppositePosition( this.activeHandlePosition ) );\n\n\t\tthis._originalWidth = clientRect.width;\n\t\tthis._originalHeight = clientRect.height;\n\n\t\tthis._aspectRatio = clientRect.width / clientRect.height;\n\n\t\tconst widthStyle = domResizeHost.style.width;\n\n\t\tif ( widthStyle && widthStyle.match( /^\\d+(\\.\\d*)?%$/ ) ) {\n\t\t\tthis._originalWidthPercents = parseFloat( widthStyle );\n\t\t} else {\n\t\t\tthis._originalWidthPercents = calculateHostPercentageWidth( domResizeHost, clientRect );\n\t\t}\n\t}\n\n\tpublic update( newSize: {\n\t\twidth: number;\n\t\theight: number;\n\t\twidthPercents: number;\n\t\thandleHostWidth: number;\n\t\thandleHostHeight: number;\n\t} ): void {\n\t\tthis.proposedWidth = newSize.width;\n\t\tthis.proposedHeight = newSize.height;\n\t\tthis.proposedWidthPercents = newSize.widthPercents;\n\n\t\tthis.proposedHandleHostWidth = newSize.handleHostWidth;\n\t\tthis.proposedHandleHostHeight = newSize.handleHostHeight;\n\t}\n}\n\n/**\n * Calculates a relative width of a `domResizeHost` compared to its ancestor in percents.\n */\nfunction calculateHostPercentageWidth( domResizeHost: HTMLElement, resizeHostRect: Rect ) {\n\tconst domResizeHostParent = domResizeHost.parentElement;\n\n\t// Need to use computed style as it properly excludes parent's paddings from the returned value.\n\tlet parentWidth = parseFloat( domResizeHostParent!.ownerDocument.defaultView!.getComputedStyle( domResizeHostParent! ).width );\n\n\t// Sometimes parent width cannot be accessed. If that happens we should go up in the elements tree\n\t// and try to get width from next ancestor.\n\t// https://github.com/ckeditor/ckeditor5/issues/10776\n\tconst ancestorLevelLimit = 5;\n\tlet currentLevel = 0;\n\n\tlet checkedElement = domResizeHostParent!;\n\n\twhile ( isNaN( parentWidth ) ) {\n\t\tcheckedElement = checkedElement.parentElement!;\n\n\t\tif ( ++currentLevel > ancestorLevelLimit ) {\n\t\t\treturn 0;\n\t\t}\n\n\t\tparentWidth = parseFloat(\n\t\t\t\tdomResizeHostParent!.ownerDocument.defaultView!.getComputedStyle( checkedElement ).width\n\t\t);\n\t}\n\n\treturn resizeHostRect.width / parentWidth * 100;\n}\n\n/**\n * Returns coordinates of the top-left corner of an element, relative to the document's top-left corner.\n *\n * @param resizerPosition The position of the resize handle, e.g. `\"top-left\"`, `\"bottom-right\"`.\n */\nfunction getAbsoluteBoundaryPoint( element: HTMLElement, resizerPosition: string ) {\n\tconst elementRect = new Rect( element );\n\tconst positionParts = resizerPosition.split( '-' );\n\tconst ret = {\n\t\tx: positionParts[ 1 ] == 'right' ? elementRect.right : elementRect.left,\n\t\ty: positionParts[ 0 ] == 'bottom' ? elementRect.bottom : elementRect.top\n\t};\n\n\tret.x += element.ownerDocument.defaultView!.scrollX;\n\tret.y += element.ownerDocument.defaultView!.scrollY;\n\n\treturn ret;\n}\n\n/**\n * @param resizerPosition The expected resizer position, like `\"top-left\"`, `\"bottom-right\"`.\n * @returns A prefixed HTML class name for the resizer element.\n */\nfunction getResizerHandleClass( resizerPosition: string ) {\n\treturn `ck-widget__resizer__handle-${ resizerPosition }`;\n}\n\n/**\n * Determines the position of a given resize handle.\n *\n * @param domHandle Handle used to calculate the reference point.\n * @returns Returns a string like `\"top-left\"` or `undefined` if not matched.\n */\nfunction getHandlePosition( domHandle: HTMLElement ) {\n\tconst resizerPositions = [ 'top-left', 'top-right', 'bottom-right', 'bottom-left' ];\n\n\tfor ( const position of resizerPositions ) {\n\t\tif ( domHandle.classList.contains( getResizerHandleClass( position ) ) ) {\n\t\t\treturn position;\n\t\t}\n\t}\n}\n\n/**\n * @param position Like `\"top-left\"`.\n * @returns Inverted `position`, e.g. it returns `\"bottom-right\"` if `\"top-left\"` was given as `position`.\n */\nfunction getOppositePosition( position: string ) {\n\tconst parts = position.split( '-' );\n\tconst replacements: Record<string, string> = {\n\t\ttop: 'bottom',\n\t\tbottom: 'top',\n\t\tleft: 'right',\n\t\tright: 'left'\n\t};\n\n\treturn `${ replacements[ parts[ 0 ] ] }-${ replacements[ parts[ 1 ] ] }`;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize/sizeview\n */\n\nimport { View } from '@ckeditor/ckeditor5-ui';\nimport type { ResizerOptions } from '../widgetresize';\nimport type ResizeState from './resizerstate';\n\n/**\n * A view displaying the proposed new element size during the resizing.\n */\nexport default class SizeView extends View {\n\t/**\n\t * The visibility of the view defined based on the existence of the host proposed dimensions.\n\t *\n\t * @internal\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public _isVisible: boolean;\n\n\t/**\n\t * The text that will be displayed in the `SizeView` child.\n\t * It can be formatted as the pixel values (e.g. 10x20) or the percentage value (e.g. 10%).\n\t *\n\t * @internal\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public _label: string;\n\n\t/**\n\t * The position of the view defined based on the host size and active handle position.\n\t *\n\t * @internal\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public _viewPosition: string;\n\n\tconstructor() {\n\t\tsuper();\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-size-view',\n\t\t\t\t\tbind.to( '_viewPosition', value => value ? `ck-orientation-${ value }` : '' )\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\tdisplay: bind.if( '_isVisible', 'none', visible => !visible )\n\t\t\t\t}\n\t\t\t},\n\t\t\tchildren: [ {\n\t\t\t\ttext: bind.to( '_label' )\n\t\t\t} ]\n\t\t} );\n\t}\n\n\t/**\n\t * A method used for binding the `SizeView` instance properties to the `ResizeState` instance observable properties.\n\t *\n\t * @internal\n\t * @param options An object defining the resizer options, used for setting the proper size label.\n\t * @param resizeState The `ResizeState` class instance, used for keeping the `SizeView` state up to date.\n\t */\n\tpublic _bindToState( options: ResizerOptions, resizeState: ResizeState ): void {\n\t\tthis.bind( '_isVisible' ).to( resizeState, 'proposedWidth', resizeState, 'proposedHeight', ( width, height ) =>\n\t\t\twidth !== null && height !== null );\n\n\t\tthis.bind( '_label' ).to(\n\t\t\tresizeState, 'proposedHandleHostWidth',\n\t\t\tresizeState, 'proposedHandleHostHeight',\n\t\t\tresizeState, 'proposedWidthPercents',\n\t\t\t( width, height, widthPercents ) => {\n\t\t\t\tif ( options.unit === 'px' ) {\n\t\t\t\t\treturn `${ width }×${ height }`;\n\t\t\t\t} else {\n\t\t\t\t\treturn `${ widthPercents }%`;\n\t\t\t\t}\n\t\t\t}\n\t\t);\n\n\t\tthis.bind( '_viewPosition' ).to(\n\t\t\tresizeState, 'activeHandlePosition',\n\t\t\tresizeState, 'proposedHandleHostWidth',\n\t\t\tresizeState, 'proposedHandleHostHeight',\n\t\t\t// If the widget is too small to contain the size label, display the label above.\n\t\t\t( position, width, height ) => width! < 50 || height! < 50 ? 'above-center' : position!\n\t\t);\n\t}\n\n\t/**\n\t * A method used for cleaning up. It removes the bindings and hides the view.\n\t *\n\t * @internal\n\t */\n\tpublic _dismiss(): void {\n\t\tthis.unbind();\n\t\tthis._isVisible = false;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize/resizer\n */\n\nimport { Template } from '@ckeditor/ckeditor5-ui';\nimport {\n\tRect,\n\tObservableMixin,\n\tcompareArrays,\n\ttype ObservableChangeEvent,\n\ttype DecoratedMethodEvent\n} from '@ckeditor/ckeditor5-utils';\n\nimport ResizeState from './resizerstate';\nimport SizeView from './sizeview';\n\nimport type { ResizerOptions } from '../widgetresize';\nimport type { ViewElement } from '@ckeditor/ckeditor5-engine';\n\n/**\n * Represents a resizer for a single resizable object.\n */\nexport default class Resizer extends ObservableMixin() {\n\t/**\n\t * Flag that indicates whether resizer can be used.\n\t *\n\t * @observable\n\t */\n\tdeclare public isEnabled: boolean;\n\n\t/**\n\t * Flag that indicates that resizer is currently focused.\n\t *\n\t * @observable\n\t */\n\tdeclare public isSelected: boolean;\n\n\t/**\n\t * Flag that indicates whether resizer is rendered (visible on the screen).\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public isVisible: boolean;\n\n\t/**\n\t * Stores the state of the resizable host geometry, such as the original width, the currently proposed height, etc.\n\t *\n\t * Note that a new state is created for each resize transaction.\n\t */\n\tprivate _state!: ResizeState;\n\n\t/**\n\t * A view displaying the proposed new element size during the resizing.\n\t */\n\tprivate _sizeView!: SizeView;\n\n\t/**\n\t * Options passed to the {@link #constructor}.\n\t */\n\tprivate _options: ResizerOptions;\n\n\t/**\n\t * A wrapper that is controlled by the resizer. This is usually a widget element.\n\t */\n\tprivate _viewResizerWrapper: ViewElement | null = null;\n\n\t/**\n\t * The width of the resized {@link module:widget/widgetresize~ResizerOptions#viewElement viewElement} before the resizing started.\n\t */\n\tprivate _initialViewWidth: string | undefined;\n\n\t/**\n\t * @param options Resizer options.\n\t */\n\tconstructor( options: ResizerOptions ) {\n\t\tsuper();\n\n\t\tthis._options = options;\n\n\t\tthis.set( 'isEnabled', true );\n\t\tthis.set( 'isSelected', false );\n\n\t\tthis.bind( 'isVisible' ).to( this, 'isEnabled', this, 'isSelected', ( isEnabled, isSelected ) => isEnabled && isSelected );\n\n\t\tthis.decorate( 'begin' );\n\t\tthis.decorate( 'cancel' );\n\t\tthis.decorate( 'commit' );\n\t\tthis.decorate( 'updateSize' );\n\n\t\tthis.on( 'commit', event => {\n\t\t\t// State might not be initialized yet. In this case, prevent further handling and make sure that the resizer is\n\t\t\t// cleaned up (#5195).\n\t\t\tif ( !this.state.proposedWidth && !this.state.proposedWidthPercents ) {\n\t\t\t\tthis._cleanup();\n\t\t\t\tevent.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Stores the state of the resizable host geometry, such as the original width, the currently proposed height, etc.\n\t *\n\t * Note that a new state is created for each resize transaction.\n\t */\n\tpublic get state(): ResizeState {\n\t\treturn this._state;\n\t}\n\n\t/**\n\t * Makes resizer visible in the UI.\n\t */\n\tpublic show(): void {\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\twriter.removeClass( 'ck-hidden', this._viewResizerWrapper! );\n\t\t} );\n\t}\n\n\t/**\n\t * Hides resizer in the UI.\n\t */\n\tpublic hide(): void {\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\twriter.addClass( 'ck-hidden', this._viewResizerWrapper! );\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches the resizer to the DOM.\n\t */\n\tpublic attach(): void {\n\t\t// eslint-disable-next-line @typescript-eslint/no-this-alias\n\t\tconst that = this;\n\t\tconst widgetElement = this._options.viewElement;\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\tconst viewResizerWrapper = writer.createUIElement( 'div', {\n\t\t\t\tclass: 'ck ck-reset_all ck-widget__resizer'\n\t\t\t}, function( domDocument ) {\n\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\tthat._appendHandles( domElement );\n\t\t\t\tthat._appendSizeUI( domElement );\n\n\t\t\t\treturn domElement;\n\t\t\t} );\n\n\t\t\t// Append the resizer wrapper to the widget's wrapper.\n\t\t\twriter.insert( writer.createPositionAt( widgetElement, 'end' ), viewResizerWrapper );\n\t\t\twriter.addClass( 'ck-widget_with-resizer', widgetElement );\n\n\t\t\tthis._viewResizerWrapper = viewResizerWrapper;\n\n\t\t\tif ( !this.isVisible ) {\n\t\t\t\tthis.hide();\n\t\t\t}\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent>( 'change:isVisible', () => {\n\t\t\tif ( this.isVisible ) {\n\t\t\t\tthis.show();\n\t\t\t\tthis.redraw();\n\t\t\t} else {\n\t\t\t\tthis.hide();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Starts the resizing process.\n\t *\n\t * Creates a new {@link #state} for the current process.\n\t *\n\t * @fires begin\n\t * @param domResizeHandle Clicked handle.\n\t */\n\tpublic begin( domResizeHandle: HTMLElement ): void {\n\t\tthis._state = new ResizeState( this._options );\n\n\t\tthis._sizeView._bindToState( this._options, this.state );\n\n\t\tthis._initialViewWidth = this._options.viewElement.getStyle( 'width' );\n\n\t\tthis.state.begin( domResizeHandle, this._getHandleHost(), this._getResizeHost() );\n\t}\n\n\t/**\n\t * Updates the proposed size based on `domEventData`.\n\t *\n\t * @fires updateSize\n\t */\n\tpublic updateSize( domEventData: MouseEvent ): void {\n\t\tconst newSize = this._proposeNewSize( domEventData );\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\tconst unit = this._options.unit || '%';\n\t\t\tconst newWidth = ( unit === '%' ? newSize.widthPercents : newSize.width ) + unit;\n\n\t\t\twriter.setStyle( 'width', newWidth, this._options.viewElement );\n\t\t} );\n\n\t\t// Get an actual image width, and:\n\t\t// * reflect this size to the resize wrapper\n\t\t// * apply this **real** size to the state\n\t\tconst domHandleHost = this._getHandleHost();\n\t\tconst domHandleHostRect = new Rect( domHandleHost );\n\n\t\tconst handleHostWidth = Math.round( domHandleHostRect.width );\n\t\tconst handleHostHeight = Math.round( domHandleHostRect.height );\n\n\t\t// Handle max-width limitation.\n\t\tconst domResizeHostRect = new Rect( domHandleHost );\n\n\t\tnewSize.width = Math.round( domResizeHostRect.width );\n\t\tnewSize.height = Math.round( domResizeHostRect.height );\n\n\t\tthis.redraw( domHandleHostRect );\n\n\t\tthis.state.update( {\n\t\t\t...newSize,\n\t\t\thandleHostWidth,\n\t\t\thandleHostHeight\n\t\t} );\n\t}\n\n\t/**\n\t * Applies the geometry proposed with the resizer.\n\t *\n\t * @fires commit\n\t */\n\tpublic commit(): void {\n\t\tconst unit = this._options.unit || '%';\n\t\tconst newValue = ( unit === '%' ? this.state.proposedWidthPercents : this.state.proposedWidth ) + unit;\n\n\t\t// Both cleanup and onCommit callback are very likely to make view changes. Ensure that it is made in a single step.\n\t\tthis._options.editor.editing.view.change( () => {\n\t\t\tthis._cleanup();\n\t\t\tthis._options.onCommit( newValue );\n\t\t} );\n\t}\n\n\t/**\n\t * Cancels and rejects the proposed resize dimensions, hiding the UI.\n\t *\n\t * @fires cancel\n\t */\n\tpublic cancel(): void {\n\t\tthis._cleanup();\n\t}\n\n\t/**\n\t * Destroys the resizer.\n\t */\n\tpublic destroy(): void {\n\t\tthis.cancel();\n\t}\n\n\t/**\n\t * Redraws the resizer.\n\t *\n\t * @param handleHostRect Handle host rectangle might be given to improve performance.\n\t */\n\tpublic redraw( handleHostRect?: Rect ): void {\n\t\tconst domWrapper = this._domResizerWrapper;\n\n\t\t// Refresh only if resizer exists in the DOM.\n\t\tif ( !existsInDom( domWrapper ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst widgetWrapper = domWrapper!.parentElement;\n\t\tconst handleHost = this._getHandleHost();\n\t\tconst resizerWrapper = this._viewResizerWrapper!;\n\t\tconst currentDimensions = [\n\t\t\tresizerWrapper.getStyle( 'width' ),\n\t\t\tresizerWrapper.getStyle( 'height' ),\n\t\t\tresizerWrapper.getStyle( 'left' ),\n\t\t\tresizerWrapper.getStyle( 'top' )\n\t\t];\n\t\tlet newDimensions: Array<string | undefined>;\n\n\t\tif ( widgetWrapper!.isSameNode( handleHost ) ) {\n\t\t\tconst clientRect = handleHostRect || new Rect( handleHost );\n\n\t\t\tnewDimensions = [\n\t\t\t\tclientRect.width + 'px',\n\t\t\t\tclientRect.height + 'px',\n\t\t\t\tundefined,\n\t\t\t\tundefined\n\t\t\t];\n\t\t}\n\t\t// In case a resizing host is not a widget wrapper, we need to compensate\n\t\t// for any additional offsets the resize host might have. E.g. wrapper padding\n\t\t// or simply another editable. By doing that the border and resizers are shown\n\t\t// only around the resize host.\n\t\telse {\n\t\t\tnewDimensions = [\n\t\t\t\thandleHost.offsetWidth + 'px',\n\t\t\t\thandleHost.offsetHeight + 'px',\n\t\t\t\thandleHost.offsetLeft + 'px',\n\t\t\t\thandleHost.offsetTop + 'px'\n\t\t\t];\n\t\t}\n\n\t\t// Make changes to the view only if the resizer should actually get new dimensions.\n\t\t// Otherwise, if View#change() was always called, this would cause EditorUI#update\n\t\t// loops because the WidgetResize plugin listens to EditorUI#update and updates\n\t\t// the resizer.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/7633\n\t\tif ( compareArrays( currentDimensions, newDimensions ) !== 'same' ) {\n\t\t\tthis._options.editor.editing.view.change( writer => {\n\t\t\t\twriter.setStyle( {\n\t\t\t\t\twidth: newDimensions[ 0 ]!,\n\t\t\t\t\theight: newDimensions[ 1 ]!,\n\t\t\t\t\tleft: newDimensions[ 2 ]!,\n\t\t\t\t\ttop: newDimensions[ 3 ]!\n\t\t\t\t}, resizerWrapper );\n\t\t\t} );\n\t\t}\n\t}\n\n\tpublic containsHandle( domElement: HTMLElement ): boolean {\n\t\treturn this._domResizerWrapper!.contains( domElement );\n\t}\n\n\tpublic static isResizeHandle( domElement: HTMLElement ): boolean {\n\t\treturn domElement.classList.contains( 'ck-widget__resizer__handle' );\n\t}\n\n\t/**\n\t * Cleans up the context state.\n\t */\n\tprivate _cleanup(): void {\n\t\tthis._sizeView._dismiss();\n\n\t\tconst editingView = this._options.editor.editing.view;\n\n\t\teditingView.change( writer => {\n\t\t\twriter.setStyle( 'width', this._initialViewWidth!, this._options.viewElement );\n\t\t} );\n\t}\n\n\t/**\n\t * Calculates the proposed size as the resize handles are dragged.\n\t *\n\t * @param domEventData Event data that caused the size update request. It should be used to calculate the proposed size.\n\t */\n\tprivate _proposeNewSize( domEventData: MouseEvent ): { width: number; height: number; widthPercents: number } {\n\t\tconst state = this.state;\n\t\tconst currentCoordinates = extractCoordinates( domEventData );\n\t\tconst isCentered = this._options.isCentered ? this._options.isCentered( this ) : true;\n\n\t\t// Enlargement defines how much the resize host has changed in a given axis. Naturally it could be a negative number\n\t\t// meaning that it has been shrunk.\n\t\t//\n\t\t// +----------------+--+\n\t\t// |                |  |\n\t\t// |       img      |  |\n\t\t// |  /handle host  |  |\n\t\t// +----------------+  | ^\n\t\t// |                   | | - enlarge y\n\t\t// +-------------------+ v\n\t\t// \t\t\t\t\t<-->\n\t\t// \t\t\t\t\t enlarge x\n\t\tconst enlargement = {\n\t\t\tx: state._referenceCoordinates!.x - ( currentCoordinates.x + state.originalWidth! ),\n\t\t\ty: ( currentCoordinates.y - state.originalHeight! ) - state._referenceCoordinates!.y\n\t\t};\n\n\t\tif ( isCentered && state.activeHandlePosition!.endsWith( '-right' ) ) {\n\t\t\tenlargement.x = currentCoordinates.x - ( state._referenceCoordinates!.x + state.originalWidth! );\n\t\t}\n\n\t\t// Objects needs to be resized twice as much in horizontal axis if centered, since enlargement is counted from\n\t\t// one resized corner to your cursor. It needs to be duplicated to compensate for the other side too.\n\t\tif ( isCentered ) {\n\t\t\tenlargement.x *= 2;\n\t\t}\n\n\t\t// const resizeHost = this._getResizeHost();\n\n\t\t// The size proposed by the user. It does not consider the aspect ratio.\n\t\tlet width = Math.abs( state.originalWidth! + enlargement.x );\n\t\tlet height = Math.abs( state.originalHeight! + enlargement.y );\n\n\t\t// Dominant determination must take the ratio into account.\n\t\tconst dominant = width / state.aspectRatio! > height ? 'width' : 'height';\n\n\t\tif ( dominant == 'width' ) {\n\t\t\theight = width / state.aspectRatio!;\n\t\t} else {\n\t\t\twidth = height * state.aspectRatio!;\n\t\t}\n\n\t\treturn {\n\t\t\twidth: Math.round( width ),\n\t\t\theight: Math.round( height ),\n\t\t\twidthPercents: Math.min( Math.round( state.originalWidthPercents! / state.originalWidth! * width * 100 ) / 100, 100 )\n\t\t};\n\t}\n\n\t/**\n\t * Obtains the resize host.\n\t *\n\t * Resize host is an object that receives dimensions which are the result of resizing.\n\t */\n\tprivate _getResizeHost(): HTMLElement {\n\t\tconst widgetWrapper = this._domResizerWrapper!.parentElement;\n\n\t\treturn this._options.getResizeHost( widgetWrapper! );\n\t}\n\n\t/**\n\t * Obtains the handle host.\n\t *\n\t * Handle host is an object that the handles are aligned to.\n\t *\n\t * Handle host will not always be an entire widget itself. Take an image as an example. The image widget\n\t * contains an image and a caption. Only the image should be surrounded with handles.\n\t */\n\tprivate _getHandleHost(): HTMLElement {\n\t\tconst widgetWrapper = this._domResizerWrapper!.parentElement;\n\n\t\treturn this._options.getHandleHost( widgetWrapper! );\n\t}\n\n\t/**\n\t * DOM container of the entire resize UI.\n\t *\n\t * Note that this property will have a value only after the element bound with the resizer is rendered\n\t * (otherwise `null`).\n\t */\n\tprivate get _domResizerWrapper(): HTMLElement | null {\n\t\treturn this._options.editor.editing.view.domConverter.mapViewToDom( this._viewResizerWrapper! ) as any;\n\t}\n\n\t/**\n\t * Renders the resize handles in the DOM.\n\t *\n\t * @param domElement The resizer wrapper.\n\t */\n\tprivate _appendHandles( domElement: HTMLElement ) {\n\t\tconst resizerPositions = [ 'top-left', 'top-right', 'bottom-right', 'bottom-left' ];\n\n\t\tfor ( const currentPosition of resizerPositions ) {\n\t\t\tdomElement.appendChild( ( new Template( {\n\t\t\t\ttag: 'div',\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: `ck-widget__resizer__handle ${ getResizerClass( currentPosition ) }`\n\t\t\t\t}\n\t\t\t} ).render() ) );\n\t\t}\n\t}\n\n\t/**\n\t * Sets up the {@link #_sizeView} property and adds it to the passed `domElement`.\n\t */\n\tprivate _appendSizeUI( domElement: HTMLElement ) {\n\t\tthis._sizeView = new SizeView();\n\n\t\t// Make sure icon#element is rendered before passing to appendChild().\n\t\tthis._sizeView.render();\n\n\t\tdomElement.appendChild( this._sizeView.element! );\n\t}\n}\n\n/**\n * @eventName ~Resizer#begin\n */\nexport type ResizerBeginEvent = DecoratedMethodEvent<Resizer, 'begin'>;\n\n/**\n * @eventName ~Resizer#cancel\n */\nexport type ResizerCancelEvent = DecoratedMethodEvent<Resizer, 'cancel'>;\n\n/**\n * @eventName ~Resizer#commit\n */\nexport type ResizerCommitEvent = DecoratedMethodEvent<Resizer, 'commit'>;\n\n/**\n * @eventName ~Resizer#updateSize\n */\nexport type ResizerUpdateSizeEvent = DecoratedMethodEvent<Resizer, 'updateSize'>;\n\n/**\n * @param resizerPosition Expected resizer position like `\"top-left\"`, `\"bottom-right\"`.\n * @returns A prefixed HTML class name for the resizer element\n */\nfunction getResizerClass( resizerPosition: string ) {\n\treturn `ck-widget__resizer__handle-${ resizerPosition }`;\n}\n\nfunction extractCoordinates( event: MouseEvent ) {\n\treturn {\n\t\tx: event.pageX,\n\t\ty: event.pageY\n\t};\n}\n\nfunction existsInDom( element: Node | DocumentFragment | undefined | null ) {\n\treturn element && element.ownerDocument && element.ownerDocument.contains( element );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./widgetresize.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module widget/widgetresize\n */\n\nimport Resizer, {\n\ttype ResizerBeginEvent,\n\ttype ResizerCancelEvent,\n\ttype ResizerCommitEvent\n} from './widgetresize/resizer';\n\nimport type WidgetToolbarRepository from './widgettoolbarrepository';\n\nimport {\n\tPlugin,\n\ttype Editor\n} from '@ckeditor/ckeditor5-core';\n\nimport {\n\tMouseObserver,\n\ttype DocumentChangeEvent,\n\ttype DomEventData,\n\ttype Element,\n\ttype ViewContainerElement,\n\ttype ViewDocumentMouseDownEvent,\n\ttype ViewSelectionChangeEvent\n} from '@ckeditor/ckeditor5-engine';\n\nimport type { EditorUIUpdateEvent } from '@ckeditor/ckeditor5-ui';\n\nimport {\n\tDomEmitterMixin,\n\tglobal,\n\ttype DomEmitter,\n\ttype EventInfo\n} from '@ckeditor/ckeditor5-utils';\n\nimport { throttle, type DebouncedFunc } from 'lodash-es';\n\nimport '../theme/widgetresize.css';\n\n/**\n * The widget resize feature plugin.\n *\n * Use the {@link module:widget/widgetresize~WidgetResize#attachTo} method to create a resizer for the specified widget.\n */\nexport default class WidgetResize extends Plugin {\n\t/**\n\t * The currently selected resizer.\n\t *\n\t * @observable\n\t */\n\tdeclare public selectedResizer: Resizer | null;\n\n\t/**\n\t * References an active resizer.\n\t *\n\t * Active resizer means a resizer which handle is actively used by the end user.\n\t *\n\t * @internal\n\t * @observable\n\t */\n\tdeclare public _activeResizer: Resizer | null;\n\n\t/**\n\t * A map of resizers created using this plugin instance.\n\t */\n\tprivate _resizers = new Map<ViewContainerElement, Resizer>();\n\n\tprivate _observer!: DomEmitter;\n\n\tprivate _redrawSelectedResizerThrottled!: DebouncedFunc<() => void>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'WidgetResize' {\n\t\treturn 'WidgetResize';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editing = this.editor.editing;\n\t\tconst domDocument = global.window.document;\n\n\t\tthis.set( 'selectedResizer', null );\n\t\tthis.set( '_activeResizer', null );\n\n\t\tediting.view.addObserver( MouseObserver );\n\n\t\tthis._observer = new ( DomEmitterMixin() )();\n\n\t\tthis.listenTo<ViewDocumentMouseDownEvent>(\n\t\t\tediting.view.document,\n\t\t\t'mousedown',\n\t\t\tthis._mouseDownListener.bind( this ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\n\t\tthis._observer.listenTo( domDocument, 'mousemove', this._mouseMoveListener.bind( this ) );\n\t\tthis._observer.listenTo( domDocument, 'mouseup', this._mouseUpListener.bind( this ) );\n\n\t\tthis._redrawSelectedResizerThrottled = throttle( () => this.redrawSelectedResizer(), 200 );\n\n\t\t// Redrawing on any change of the UI of the editor (including content changes).\n\t\tthis.editor.ui.on<EditorUIUpdateEvent>( 'update', this._redrawSelectedResizerThrottled );\n\n\t\t// Remove view widget-resizer mappings for widgets that have been removed from the document.\n\t\t// https://github.com/ckeditor/ckeditor5/issues/10156\n\t\t// https://github.com/ckeditor/ckeditor5/issues/10266\n\t\tthis.editor.model.document.on<DocumentChangeEvent>( 'change', () => {\n\t\t\tfor ( const [ viewElement, resizer ] of this._resizers ) {\n\t\t\t\tif ( !viewElement.isAttached() ) {\n\t\t\t\t\tthis._resizers.delete( viewElement );\n\t\t\t\t\tresizer.destroy();\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'lowest' } );\n\n\t\t// Resizers need to be redrawn upon window resize, because new window might shrink resize host.\n\t\tthis._observer.listenTo( global.window, 'resize', this._redrawSelectedResizerThrottled );\n\n\t\tconst viewSelection = this.editor.editing.view.document.selection;\n\n\t\tviewSelection.on<ViewSelectionChangeEvent>( 'change', () => {\n\t\t\tconst selectedElement = viewSelection.getSelectedElement() as ViewContainerElement;\n\n\t\t\tconst resizer = this.getResizerByViewElement( selectedElement ) || null;\n\t\t\tif ( resizer ) {\n\t\t\t\tthis.select( resizer );\n\t\t\t} else {\n\t\t\t\tthis.deselect();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Redraws the selected resizer if there is any selected resizer and if it is visible.\n\t */\n\tpublic redrawSelectedResizer(): void {\n\t\tif ( this.selectedResizer && this.selectedResizer.isVisible ) {\n\t\t\tthis.selectedResizer.redraw();\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis._observer.stopListening();\n\n\t\tfor ( const resizer of this._resizers.values() ) {\n\t\t\tresizer.destroy();\n\t\t}\n\n\t\tthis._redrawSelectedResizerThrottled.cancel();\n\t}\n\n\t/**\n\t * Marks resizer as selected.\n\t */\n\tpublic select( resizer: Resizer ): void {\n\t\tthis.deselect();\n\t\tthis.selectedResizer = resizer;\n\t\tthis.selectedResizer.isSelected = true;\n\t}\n\n\t/**\n\t * Deselects currently set resizer.\n\t */\n\tpublic deselect(): void {\n\t\tif ( this.selectedResizer ) {\n\t\t\tthis.selectedResizer.isSelected = false;\n\t\t}\n\n\t\tthis.selectedResizer = null;\n\t}\n\n\t/**\n\t * @param options Resizer options.\n\t */\n\tpublic attachTo( options: ResizerOptions ): Resizer {\n\t\tconst resizer = new Resizer( options );\n\t\tconst plugins = this.editor.plugins;\n\n\t\tresizer.attach();\n\n\t\tif ( plugins.has( 'WidgetToolbarRepository' ) ) {\n\t\t\t// Hiding widget toolbar to improve the performance\n\t\t\t// (https://github.com/ckeditor/ckeditor5-widget/pull/112#issuecomment-564528765).\n\t\t\tconst widgetToolbarRepository: WidgetToolbarRepository = plugins.get( 'WidgetToolbarRepository' );\n\n\t\t\tresizer.on<ResizerBeginEvent>( 'begin', () => {\n\t\t\t\twidgetToolbarRepository.forceDisabled( 'resize' );\n\t\t\t}, { priority: 'lowest' } );\n\n\t\t\tresizer.on<ResizerCancelEvent>( 'cancel', () => {\n\t\t\t\twidgetToolbarRepository.clearForceDisabled( 'resize' );\n\t\t\t}, { priority: 'highest' } );\n\n\t\t\tresizer.on<ResizerCommitEvent>( 'commit', () => {\n\t\t\t\twidgetToolbarRepository.clearForceDisabled( 'resize' );\n\t\t\t}, { priority: 'highest' } );\n\t\t}\n\n\t\tthis._resizers.set( options.viewElement, resizer );\n\n\t\tconst viewSelection = this.editor.editing.view.document.selection;\n\t\tconst selectedElement = viewSelection.getSelectedElement() as ViewContainerElement;\n\n\t\t// If the element the resizer is created for is currently focused, it should become visible.\n\t\tif ( this.getResizerByViewElement( selectedElement ) == resizer ) {\n\t\t\tthis.select( resizer );\n\t\t}\n\n\t\treturn resizer;\n\t}\n\n\t/**\n\t * Returns a resizer created for a given view element (widget element).\n\t *\n\t * @param viewElement View element associated with the resizer.\n\t */\n\tpublic getResizerByViewElement( viewElement: ViewContainerElement ): Resizer | undefined {\n\t\treturn this._resizers.get( viewElement );\n\t}\n\n\t/**\n\t * Returns a resizer that contains a given resize handle.\n\t */\n\tprivate _getResizerByHandle( domResizeHandle: HTMLElement ): Resizer | undefined {\n\t\tfor ( const resizer of this._resizers.values() ) {\n\t\t\tif ( resizer.containsHandle( domResizeHandle ) ) {\n\t\t\t\treturn resizer;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @param domEventData Native DOM event.\n\t */\n\tprivate _mouseDownListener( event: EventInfo, domEventData: DomEventData ) {\n\t\tconst resizeHandle = domEventData.domTarget;\n\n\t\tif ( !Resizer.isResizeHandle( resizeHandle ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._activeResizer = this._getResizerByHandle( resizeHandle ) || null;\n\n\t\tif ( this._activeResizer ) {\n\t\t\tthis._activeResizer.begin( resizeHandle );\n\n\t\t\t// Do not call other events when resizing. See: #6755.\n\t\t\tevent.stop();\n\t\t\tdomEventData.preventDefault();\n\t\t}\n\t}\n\n\t/**\n\t * @param domEventData Native DOM event.\n\t */\n\tprivate _mouseMoveListener( event: unknown, domEventData: MouseEvent ) {\n\t\tif ( this._activeResizer ) {\n\t\t\tthis._activeResizer.updateSize( domEventData );\n\t\t}\n\t}\n\n\tprivate _mouseUpListener(): void {\n\t\tif ( this._activeResizer ) {\n\t\t\tthis._activeResizer.commit();\n\t\t\tthis._activeResizer = null;\n\t\t}\n\t}\n}\n\n/**\n * Interface describing a resizer. It allows to specify the resizing host, custom logic for calculating aspect ratio, etc.\n */\nexport interface ResizerOptions {\n\n\t/**\n\t * Editor instance associated with the resizer.\n\t */\n\teditor: Editor;\n\n\tmodelElement: Element;\n\n\t/**\n\t * A view of an element to be resized. Typically it's the main widget's view instance.\n\t */\n\tviewElement: ViewContainerElement;\n\n\tunit?: 'px' | '%';\n\n\t/**\n\t * A callback to be executed once the resizing process is done.\n\t *\n\t * It receives a `Number` (`newValue`) as a parameter.\n\t *\n\t * For example, {@link module:image/imageresize~ImageResize} uses it to execute the resize image command\n\t * which puts the new value into the model.\n\t *\n\t * ```ts\n\t * {\n\t *\teditor,\n\t *\tmodelElement: data.item,\n\t *\tviewElement: widget,\n\t *\n\t *\tonCommit( newValue ) {\n\t *\t\teditor.execute( 'resizeImage', { width: newValue } );\n\t *\t}\n\t * };\n\t * ```\n\t */\n\tonCommit: ( newValue: string ) => void;\n\n\tgetResizeHost: ( widgetWrapper: HTMLElement ) => HTMLElement;\n\n\tgetHandleHost: ( widgetWrapper: HTMLElement ) => HTMLElement;\n\n\tisCentered?: ( resizer: Resizer ) => boolean;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/imagetextalternativecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport type ImageUtils from '../imageutils';\n\n/**\n * The image text alternative command. It is used to change the `alt` attribute of `<imageBlock>` and `<imageInline>` model elements.\n */\nexport default class ImageTextAlternativeCommand extends Command {\n\t/**\n\t * The command value: `false` if there is no `alt` attribute, otherwise the value of the `alt` attribute.\n\t *\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public value: string | false;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( this.editor.model.document.selection )!;\n\n\t\tthis.isEnabled = !!element;\n\n\t\tif ( this.isEnabled && element.hasAttribute( 'alt' ) ) {\n\t\t\tthis.value = element.getAttribute( 'alt' ) as string | false;\n\t\t} else {\n\t\t\tthis.value = false;\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options\n\t * @param options.newValue The new value of the `alt` attribute to set.\n\t */\n\tpublic override execute( options: { newValue: string } ): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst model = editor.model;\n\t\tconst imageElement = imageUtils.getClosestSelectedImageElement( model.document.selection );\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setAttribute( 'alt', options.newValue, imageElement! );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/utils\n */\n\nimport type {\n\tDocumentSelection,\n\tMatcherPattern,\n\tSchema,\n\tSelection,\n\tViewContainerElement,\n\tDowncastWriter,\n\tViewElement\n} from 'ckeditor5/src/engine';\nimport type { Editor } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\nimport type ImageUtils from '../imageutils';\n\n/**\n * Creates a view element representing the inline image.\n *\n * ```html\n * <span class=\"image-inline\"><img></img></span>\n * ```\n *\n * Note that `alt` and `src` attributes are converted separately, so they are not included.\n *\n * @internal\n */\nexport function createInlineImageViewElement( writer: DowncastWriter ): ViewContainerElement {\n\treturn writer.createContainerElement( 'span', { class: 'image-inline' },\n\t\twriter.createEmptyElement( 'img' )\n\t);\n}\n\n/**\n * Creates a view element representing the block image.\n *\n * ```html\n * <figure class=\"image\"><img></img></figure>\n * ```\n *\n * Note that `alt` and `src` attributes are converted separately, so they are not included.\n *\n * @internal\n */\nexport function createBlockImageViewElement( writer: DowncastWriter ): ViewContainerElement {\n\treturn writer.createContainerElement( 'figure', { class: 'image' }, [\n\t\twriter.createEmptyElement( 'img' ),\n\t\twriter.createSlot( 'children' )\n\t] );\n}\n\n/**\n * A function returning a `MatcherPattern` for a particular type of View images.\n *\n * @internal\n * @param matchImageType The type of created image.\n */\nexport function getImgViewElementMatcher( editor: Editor, matchImageType: 'imageBlock' | 'imageInline' ): MatcherPattern {\n\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\tconst areBothImagePluginsLoaded = editor.plugins.has( 'ImageInlineEditing' ) && editor.plugins.has( 'ImageBlockEditing' );\n\n\treturn element => {\n\t\t// Check if the matched view element is an <img>.\n\t\tif ( !imageUtils.isInlineImageView( element ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// If just one of the plugins is loaded (block or inline), it will match all kinds of images.\n\t\tif ( !areBothImagePluginsLoaded ) {\n\t\t\treturn getPositiveMatchPattern( element );\n\t\t}\n\n\t\t// The <img> can be standalone, wrapped in <figure>...</figure> (ImageBlock plugin) or\n\t\t// wrapped in <figure><a>...</a></figure> (LinkImage plugin).\n\t\tconst imageType = element.getStyle( 'display' ) == 'block' || element.findAncestor( imageUtils.isBlockImageView ) ?\n\t\t\t'imageBlock' :\n\t\t\t'imageInline';\n\n\t\tif ( imageType !== matchImageType ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn getPositiveMatchPattern( element );\n\t};\n\n\tfunction getPositiveMatchPattern( element: ViewElement ) {\n\t\tconst pattern: Record<string, unknown> = {\n\t\t\tname: true\n\t\t};\n\n\t\t// This will trigger src consumption (See https://github.com/ckeditor/ckeditor5/issues/11530).\n\t\tif ( element.hasAttribute( 'src' ) ) {\n\t\t\tpattern.attributes = [ 'src' ];\n\t\t}\n\n\t\treturn pattern;\n\t}\n}\n\n/**\n * Considering the current model selection, it returns the name of the model image element\n * (`'imageBlock'` or `'imageInline'`) that will make most sense from the UX perspective if a new\n * image was inserted (also: uploaded, dropped, pasted) at that selection.\n *\n * The assumption is that inserting images into empty blocks or on other block widgets should\n * produce block images. Inline images should be inserted in other cases, e.g. in paragraphs\n * that already contain some text.\n *\n * @internal\n */\nexport function determineImageTypeForInsertionAtSelection(\n\tschema: Schema,\n\tselection: Selection | DocumentSelection\n): 'imageBlock' | 'imageInline' {\n\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t// Insert a block image if the selection is not in/on block elements or it's on a block widget.\n\tif ( !firstBlock || schema.isObject( firstBlock ) ) {\n\t\treturn 'imageBlock';\n\t}\n\n\t// A block image should also be inserted into an empty block element\n\t// (that is not an empty list item so the list won't get split).\n\tif ( firstBlock.isEmpty && firstBlock.name != 'listItem' ) {\n\t\treturn 'imageBlock';\n\t}\n\n\t// Otherwise insert an inline image.\n\treturn 'imageInline';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageutils\n */\n\nimport type {\n\tElement,\n\tViewElement,\n\tViewNode,\n\tDocumentSelection,\n\tViewDocumentSelection,\n\tSelection,\n\tViewSelection,\n\tDocumentFragment,\n\tViewDocumentFragment,\n\tDowncastWriter,\n\tModel,\n\tPosition\n} from 'ckeditor5/src/engine';\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport { findOptimalInsertionRange, isWidget, toWidget } from 'ckeditor5/src/widget';\nimport { determineImageTypeForInsertionAtSelection } from './image/utils';\n\n/**\n * A set of helpers related to images.\n */\nexport default class ImageUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageUtils' {\n\t\treturn 'ImageUtils';\n\t}\n\n\t/**\n\t * Checks if the provided model element is an `image` or `imageInline`.\n\t */\n\tpublic isImage( modelElement?: Element | null ): modelElement is Element & { name: 'imageInline' | 'imageBlock' } {\n\t\treturn this.isInlineImage( modelElement ) || this.isBlockImage( modelElement );\n\t}\n\n\t/**\n\t * Checks if the provided view element represents an inline image.\n\t *\n\t * Also, see {@link module:image/imageutils~ImageUtils#isImageWidget}.\n\t */\n\tpublic isInlineImageView( element?: ViewElement | null ): boolean {\n\t\treturn !!element && element.is( 'element', 'img' );\n\t}\n\n\t/**\n\t * Checks if the provided view element represents a block image.\n\t *\n\t * Also, see {@link module:image/imageutils~ImageUtils#isImageWidget}.\n\t */\n\tpublic isBlockImageView( element?: ViewElement | null ): boolean {\n\t\treturn !!element && element.is( 'element', 'figure' ) && element.hasClass( 'image' );\n\t}\n\n\t/**\n\t * Handles inserting single file. This method unifies image insertion using {@link module:widget/utils~findOptimalInsertionRange}\n\t * method.\n\t *\n\t * ```ts\n\t * const imageUtils = editor.plugins.get( 'ImageUtils' );\n\t *\n\t * imageUtils.insertImage( { src: 'path/to/image.jpg' } );\n\t * ```\n\t *\n\t * @param attributes Attributes of the inserted image.\n\t * This method filters out the attributes which are disallowed by the {@link module:engine/model/schema~Schema}.\n\t * @param selectable Place to insert the image. If not specified,\n\t * the {@link module:widget/utils~findOptimalInsertionRange} logic will be applied for the block images\n\t * and `model.document.selection` for the inline images.\n\t *\n\t * **Note**: If `selectable` is passed, this helper will not be able to set selection attributes (such as `linkHref`)\n\t * and apply them to the new image. In this case, make sure all selection attributes are passed in `attributes`.\n\t *\n\t * @param imageType Image type of inserted image. If not specified,\n\t * it will be determined automatically depending of editor config or place of the insertion.\n\t * @return The inserted model image element.\n\t */\n\tpublic insertImage(\n\t\tattributes: Record<string, unknown> = {},\n\t\tselectable: Selection | Position | null = null,\n\t\timageType: ( 'imageBlock' | 'imageInline' | null ) = null\n\t): Element | null {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\timageType = determineImageTypeForInsertion( editor, selectable || selection, imageType );\n\n\t\t// Mix declarative attributes with selection attributes because the new image should \"inherit\"\n\t\t// the latter for best UX. For instance, inline images inserted into existing links\n\t\t// should not split them. To do that, they need to have \"linkHref\" inherited from the selection.\n\t\tattributes = {\n\t\t\t...Object.fromEntries( selection.getAttributes() ),\n\t\t\t...attributes\n\t\t};\n\n\t\tfor ( const attributeName in attributes ) {\n\t\t\tif ( !model.schema.checkAttribute( imageType, attributeName ) ) {\n\t\t\t\tdelete attributes[ attributeName ];\n\t\t\t}\n\t\t}\n\n\t\treturn model.change( writer => {\n\t\t\tconst imageElement = writer.createElement( imageType!, attributes );\n\n\t\t\tmodel.insertObject( imageElement, selectable, null, {\n\t\t\t\tsetSelection: 'on',\n\t\t\t\t// If we want to insert a block image (for whatever reason) then we don't want to split text blocks.\n\t\t\t\t// This applies only when we don't have the selectable specified (i.e., we insert multiple block images at once).\n\t\t\t\tfindOptimalPosition: !selectable && imageType != 'imageInline' ? 'auto' : undefined\n\t\t\t} );\n\n\t\t\t// Inserting an image might've failed due to schema regulations.\n\t\t\tif ( imageElement.parent ) {\n\t\t\t\treturn imageElement;\n\t\t\t}\n\n\t\t\treturn null;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns an image widget editing view element if one is selected or is among the selection's ancestors.\n\t */\n\tpublic getClosestSelectedImageWidget( selection: ViewSelection | ViewDocumentSelection ): ViewElement | null {\n\t\tconst selectionPosition = selection.getFirstPosition();\n\n\t\tif ( !selectionPosition ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst viewElement = selection.getSelectedElement();\n\n\t\tif ( viewElement && this.isImageWidget( viewElement ) ) {\n\t\t\treturn viewElement;\n\t\t}\n\n\t\tlet parent: ViewNode | ViewDocumentFragment | null = selectionPosition.parent;\n\n\t\twhile ( parent ) {\n\t\t\tif ( parent.is( 'element' ) && this.isImageWidget( parent ) ) {\n\t\t\t\treturn parent;\n\t\t\t}\n\n\t\t\tparent = parent.parent;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns a image model element if one is selected or is among the selection's ancestors.\n\t */\n\tpublic getClosestSelectedImageElement( selection: Selection | DocumentSelection ): Element | null {\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\treturn this.isImage( selectedElement ) ? selectedElement : selection.getFirstPosition()!.findAncestor( 'imageBlock' );\n\t}\n\n\t/**\n\t * Checks if image can be inserted at current model selection.\n\t *\n\t * @internal\n\t */\n\tpublic isImageAllowed(): boolean {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\treturn isImageAllowedInParent( this.editor, selection ) && isNotInsideImage( selection );\n\t}\n\n\t/**\n\t * Converts a given {@link module:engine/view/element~Element} to an image widget:\n\t * * Adds a {@link module:engine/view/element~Element#_setCustomProperty custom property} allowing to recognize the image widget\n\t * element.\n\t * * Calls the {@link module:widget/utils~toWidget} function with the proper element's label creator.\n\t *\n\t * @param writer An instance of the view writer.\n\t * @param label The element's label. It will be concatenated with the image `alt` attribute if one is present.\n\t */\n\tpublic toImageWidget( viewElement: ViewElement, writer: DowncastWriter, label: string ): ViewElement {\n\t\twriter.setCustomProperty( 'image', true, viewElement );\n\n\t\tconst labelCreator = () => {\n\t\t\tconst imgElement = this.findViewImgElement( viewElement )!;\n\t\t\tconst altText = imgElement.getAttribute( 'alt' );\n\n\t\t\treturn altText ? `${ altText } ${ label }` : label;\n\t\t};\n\n\t\treturn toWidget( viewElement, writer, { label: labelCreator } );\n\t}\n\n\t/**\n\t * Checks if a given view element is an image widget.\n\t */\n\tprotected isImageWidget( viewElement: ViewElement ): boolean {\n\t\treturn !!viewElement.getCustomProperty( 'image' ) && isWidget( viewElement );\n\t}\n\n\t/**\n\t * Checks if the provided model element is an `image`.\n\t */\n\tpublic isBlockImage( modelElement?: Element | null ): boolean {\n\t\treturn !!modelElement && modelElement.is( 'element', 'imageBlock' );\n\t}\n\n\t/**\n\t * Checks if the provided model element is an `imageInline`.\n\t */\n\tpublic isInlineImage( modelElement?: Element | null ): boolean {\n\t\treturn !!modelElement && modelElement.is( 'element', 'imageInline' );\n\t}\n\n\t/**\n\t * Get the view `<img>` from another view element, e.g. a widget (`<figure class=\"image\">`), a link (`<a>`).\n\t *\n\t * The `<img>` can be located deep in other elements, so this helper performs a deep tree search.\n\t */\n\tpublic findViewImgElement( figureView: ViewElement ): ViewElement | undefined {\n\t\tif ( this.isInlineImageView( figureView ) ) {\n\t\t\treturn figureView;\n\t\t}\n\n\t\tconst editingView = this.editor.editing.view;\n\n\t\tfor ( const { item } of editingView.createRangeIn( figureView ) ) {\n\t\t\tif ( this.isInlineImageView( item as ViewElement ) ) {\n\t\t\t\treturn item as ViewElement;\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Checks if image is allowed by schema in optimal insertion parent.\n */\nfunction isImageAllowedInParent( editor: Editor, selection: Selection | DocumentSelection ): boolean {\n\tconst imageType = determineImageTypeForInsertion( editor, selection, null );\n\n\tif ( imageType == 'imageBlock' ) {\n\t\tconst parent = getInsertImageParent( selection, editor.model );\n\n\t\tif ( editor.model.schema.checkChild( parent as Element, 'imageBlock' ) ) {\n\t\t\treturn true;\n\t\t}\n\t} else if ( editor.model.schema.checkChild( selection.focus!, 'imageInline' ) ) {\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Checks if selection is not placed inside an image (e.g. its caption).\n */\nfunction isNotInsideImage( selection: DocumentSelection ): boolean {\n\treturn [ ...selection.focus!.getAncestors() ].every( ancestor => !ancestor.is( 'element', 'imageBlock' ) );\n}\n\n/**\n * Returns a node that will be used to insert image with `model.insertContent`.\n */\nfunction getInsertImageParent( selection: Selection | DocumentSelection, model: Model ): Element | DocumentFragment {\n\tconst insertionRange = findOptimalInsertionRange( selection, model );\n\tconst parent = insertionRange.start.parent;\n\n\tif ( parent.isEmpty && !parent.is( 'element', '$root' ) ) {\n\t\treturn parent.parent!;\n\t}\n\n\treturn parent;\n}\n\n/**\n * Determine image element type name depending on editor config or place of insertion.\n *\n * @param imageType Image element type name. Used to force return of provided element name,\n * but only if there is proper plugin enabled.\n */\nfunction determineImageTypeForInsertion(\n\teditor: Editor,\n\tselectable: Position | Selection | DocumentSelection,\n\timageType: 'imageBlock' | 'imageInline' | null\n): 'imageBlock' | 'imageInline' {\n\tconst schema = editor.model.schema;\n\tconst configImageInsertType = editor.config.get( 'image.insert.type' );\n\n\tif ( !editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\treturn 'imageInline';\n\t}\n\n\tif ( !editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\treturn 'imageBlock';\n\t}\n\n\tif ( imageType ) {\n\t\treturn imageType;\n\t}\n\n\tif ( configImageInsertType === 'inline' ) {\n\t\treturn 'imageInline';\n\t}\n\n\tif ( configImageInsertType === 'block' ) {\n\t\treturn 'imageBlock';\n\t}\n\n\t// Try to replace the selected widget (e.g. another image).\n\tif ( selectable.is( 'selection' ) ) {\n\t\treturn determineImageTypeForInsertionAtSelection( schema, selectable );\n\t}\n\n\treturn schema.checkChild( selectable, 'imageInline' ) ? 'imageInline' : 'imageBlock';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/imagetextalternativeediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageTextAlternativeCommand from './imagetextalternativecommand';\nimport ImageUtils from '../imageutils';\n\n/**\n * The image text alternative editing plugin.\n *\n * Registers the `'imageTextAlternative'` command.\n */\nexport default class ImageTextAlternativeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageTextAlternativeEditing' {\n\t\treturn 'ImageTextAlternativeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tthis.editor.commands.add( 'imageTextAlternative', new ImageTextAlternativeCommand( this.editor ) );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./textalternativeform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/ui/textalternativeformview\n */\n\nimport {\n\tButtonView,\n\tFocusCycler,\n\tLabeledFieldView,\n\tView,\n\tViewCollection,\n\tcreateLabeledInputText,\n\tsubmitHandler,\n\ttype InputView\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler, type Locale } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport '../../../theme/textalternativeform.css';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\n\n/**\n * The TextAlternativeFormView class.\n */\nexport default class TextAlternativeFormView extends View {\n\t/**\n\t * Tracks information about the DOM focus in the form.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * An input with a label.\n\t */\n\tpublic labeledInput: LabeledFieldView<InputView>;\n\n\t/**\n\t * A button used to submit the form.\n\t */\n\tpublic saveButtonView: ButtonView;\n\n\t/**\n\t * A button used to cancel the form.\n\t */\n\tpublic cancelButtonView: ButtonView;\n\n\t/**\n\t * A collection of views which can be focused in the form.\n\t */\n\tprotected readonly _focusables: ViewCollection;\n\n\t/**\n\t * Helps cycling over {@link #_focusables} in the form.\n\t */\n\tprotected readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\t\tconst t = this.locale!.t;\n\n\t\tthis.focusTracker = new FocusTracker();\n\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\tthis.labeledInput = this._createLabeledInputView();\n\n\t\tthis.saveButtonView = this._createButton( t( 'Save' ), icons.check, 'ck-button-save' );\n\t\tthis.saveButtonView.type = 'submit';\n\n\t\tthis.cancelButtonView = this._createButton( t( 'Cancel' ), icons.cancel, 'ck-button-cancel', 'cancel' );\n\n\t\tthis._focusables = new ViewCollection();\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-text-alternative-form',\n\t\t\t\t\t'ck-responsive-form'\n\t\t\t\t],\n\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-image/issues/40\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\tthis.labeledInput,\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.keystrokes.listenTo( this.element! );\n\n\t\tsubmitHandler( { view: this } );\n\n\t\t[ this.labeledInput, this.saveButtonView, this.cancelButtonView ]\n\t\t\t.forEach( v => {\n\t\t\t\t// Register the view as focusable.\n\t\t\t\tthis._focusables.add( v );\n\n\t\t\t\t// Register the view in the focus tracker.\n\t\t\t\tthis.focusTracker.add( v.element! );\n\t\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Creates the button view.\n\t *\n\t * @param label The button label\n\t * @param icon The button's icon.\n\t * @param className The additional button CSS class name.\n\t * @param eventName The event name that the ButtonView#execute event will be delegated to.\n\t * @returns The button view instance.\n\t */\n\tprivate _createButton( label: string, icon: string, className: string, eventName?: string ): ButtonView {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: className\n\t\t\t}\n\t\t} );\n\n\t\tif ( eventName ) {\n\t\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\t\t}\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Creates an input with a label.\n\t *\n\t * @returns Labeled field view instance.\n\t */\n\tprivate _createLabeledInputView(): LabeledFieldView<InputView> {\n\t\tconst t = this.locale!.t;\n\t\tconst labeledInput = new LabeledFieldView<InputView>( this.locale, createLabeledInputText );\n\n\t\tlabeledInput.label = t( 'Text alternative' );\n\n\t\treturn labeledInput;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/ui/utils\n */\n\nimport type { PositionOptions } from 'ckeditor5/src/utils';\nimport type { Editor } from 'ckeditor5/src/core';\nimport { BalloonPanelView, type ContextualBalloon } from 'ckeditor5/src/ui';\n\nimport type ImageUtils from '../../imageutils';\n\n/**\n * A helper utility that positions the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} instance\n * with respect to the image in the editor content, if one is selected.\n *\n * @param editor The editor instance.\n */\nexport function repositionContextualBalloon( editor: Editor ): void {\n\tconst balloon: ContextualBalloon = editor.plugins.get( 'ContextualBalloon' );\n\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\tif ( imageUtils.getClosestSelectedImageWidget( editor.editing.view.document.selection ) ) {\n\t\tconst position = getBalloonPositionData( editor );\n\n\t\tballoon.updatePosition( position );\n\t}\n}\n\n/**\n * Returns the positioning options that control the geometry of the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} with respect\n * to the selected element in the editor content.\n *\n * @param editor The editor instance.\n */\nexport function getBalloonPositionData( editor: Editor ): Partial<PositionOptions> {\n\tconst editingView = editor.editing.view;\n\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\treturn {\n\t\ttarget: editingView.domConverter.mapViewToDom(\n\t\t\timageUtils.getClosestSelectedImageWidget( editingView.document.selection )!\n\t\t) as HTMLElement,\n\t\tpositions: [\n\t\t\tdefaultPositions.northArrowSouth,\n\t\t\tdefaultPositions.northArrowSouthWest,\n\t\t\tdefaultPositions.northArrowSouthEast,\n\t\t\tdefaultPositions.southArrowNorth,\n\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\tdefaultPositions.southArrowNorthEast,\n\t\t\tdefaultPositions.viewportStickyNorth\n\t\t]\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative/imagetextalternativeui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport {\n\tButtonView,\n\tContextualBalloon,\n\tclickOutsideHandler,\n\tCssTransitionDisablerMixin,\n\ttype ViewWithCssTransitionDisabler\n} from 'ckeditor5/src/ui';\n\nimport TextAlternativeFormView from './ui/textalternativeformview';\nimport { repositionContextualBalloon, getBalloonPositionData } from '../image/ui/utils';\nimport type { CancelEvent, SubmitEvent } from '../imageinsert/ui/imageinsertpanelview';\nimport type ImageTextAlternativeCommand from './imagetextalternativecommand';\nimport type ImageUtils from '../imageutils';\n\n/**\n * The image text alternative UI plugin.\n *\n * The plugin uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon}.\n */\nexport default class ImageTextAlternativeUI extends Plugin {\n\t/**\n\t * The contextual balloon plugin instance.\n\t */\n\tprivate _balloon?: ContextualBalloon;\n\n\t/**\n\t * A form containing a textarea and buttons, used to change the `alt` text value.\n\t */\n\tprivate _form?: TextAlternativeFormView & ViewWithCssTransitionDisabler;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ContextualBalloon ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageTextAlternativeUI' {\n\t\treturn 'ImageTextAlternativeUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tthis._createButton();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tif ( this._form ) {\n\t\t\tthis._form.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Creates a button showing the balloon panel for changing the image text alternative and\n\t * registers it in the editor {@link module:ui/componentfactory~ComponentFactory ComponentFactory}.\n\t */\n\tprivate _createButton(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'imageTextAlternative', locale => {\n\t\t\tconst command: ImageTextAlternativeCommand = editor.commands.get( 'imageTextAlternative' )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Change image text alternative' ),\n\t\t\t\ticon: icons.lowVision,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t\t\tview.bind( 'isOn' ).to( command, 'value', value => !!value );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\tthis._showForm();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\t/**\n\t * Creates the {@link module:image/imagetextalternative/ui/textalternativeformview~TextAlternativeFormView}\n\t * form.\n\t */\n\tprivate _createForm(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tthis._balloon = this.editor.plugins.get( 'ContextualBalloon' );\n\n\t\tthis._form = new ( CssTransitionDisablerMixin( TextAlternativeFormView ) )( editor.locale );\n\n\t\t// Render the form so its #element is available for clickOutsideHandler.\n\t\tthis._form.render();\n\n\t\tthis.listenTo<SubmitEvent>( this._form, 'submit', () => {\n\t\t\teditor.execute( 'imageTextAlternative', {\n\t\t\t\tnewValue: this._form!.labeledInput.fieldView.element!.value\n\t\t\t} );\n\n\t\t\tthis._hideForm( true );\n\t\t} );\n\n\t\tthis.listenTo<CancelEvent>( this._form, 'cancel', () => {\n\t\t\tthis._hideForm( true );\n\t\t} );\n\n\t\t// Close the form on Esc key press.\n\t\tthis._form.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideForm( true );\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Reposition the balloon or hide the form if an image widget is no longer selected.\n\t\tthis.listenTo( editor.ui, 'update', () => {\n\t\t\tif ( !imageUtils.getClosestSelectedImageWidget( viewDocument.selection ) ) {\n\t\t\t\tthis._hideForm( true );\n\t\t\t} else if ( this._isVisible ) {\n\t\t\t\trepositionContextualBalloon( editor );\n\t\t\t}\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this._form,\n\t\t\tactivator: () => this._isVisible,\n\t\t\tcontextElements: () => [ this._balloon!.view.element! ],\n\t\t\tcallback: () => this._hideForm()\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the {@link #_form} in the {@link #_balloon}.\n\t */\n\tprivate _showForm(): void {\n\t\tif ( this._isVisible ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !this._form ) {\n\t\t\tthis._createForm();\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst command: ImageTextAlternativeCommand = editor.commands.get( 'imageTextAlternative' )!;\n\t\tconst labeledInput = this._form!.labeledInput;\n\n\t\tthis._form!.disableCssTransitions();\n\n\t\tif ( !this._isInBalloon ) {\n\t\t\tthis._balloon!.add( {\n\t\t\t\tview: this._form!,\n\t\t\t\tposition: getBalloonPositionData( editor )\n\t\t\t} );\n\t\t}\n\n\t\t// Make sure that each time the panel shows up, the field remains in sync with the value of\n\t\t// the command. If the user typed in the input, then canceled the balloon (`labeledInput#value`\n\t\t// stays unaltered) and re-opened it without changing the value of the command, they would see the\n\t\t// old value instead of the actual value of the command.\n\t\t// https://github.com/ckeditor/ckeditor5-image/issues/114\n\t\tlabeledInput.fieldView.value = labeledInput.fieldView.element!.value = command.value || '';\n\n\t\tthis._form!.labeledInput.fieldView.select();\n\n\t\tthis._form!.enableCssTransitions();\n\t}\n\n\t/**\n\t * Removes the {@link #_form} from the {@link #_balloon}.\n\t *\n\t * @param focusEditable Controls whether the editing view is focused afterwards.\n\t */\n\tprivate _hideForm( focusEditable: boolean = false ): void {\n\t\tif ( !this._isInBalloon ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Blur the input element before removing it from DOM to prevent issues in some browsers.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\tif ( this._form!.focusTracker.isFocused ) {\n\t\t\tthis._form!.saveButtonView.focus();\n\t\t}\n\n\t\tthis._balloon!.remove( this._form! );\n\n\t\tif ( focusEditable ) {\n\t\t\tthis.editor.editing.view.focus();\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #_form} is the visible view in the {@link #_balloon}.\n\t */\n\tprivate get _isVisible(): boolean {\n\t\treturn !!this._balloon && this._balloon.visibleView === this._form;\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #_form} is in the {@link #_balloon}.\n\t */\n\tprivate get _isInBalloon(): boolean {\n\t\treturn !!this._balloon && this._balloon.hasView( this._form! );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetextalternative\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageTextAlternativeEditing from './imagetextalternative/imagetextalternativeediting';\nimport ImageTextAlternativeUI from './imagetextalternative/imagetextalternativeui';\n\n/**\n * The image text alternative plugin.\n *\n * For a detailed overview, check the {@glink features/images/images-styles image styles} documentation.\n *\n * This is a \"glue\" plugin which loads the\n *  {@link module:image/imagetextalternative/imagetextalternativeediting~ImageTextAlternativeEditing}\n * and {@link module:image/imagetextalternative/imagetextalternativeui~ImageTextAlternativeUI} plugins.\n */\nexport default class ImageTextAlternative extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageTextAlternativeEditing, ImageTextAlternativeUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageTextAlternative' {\n\t\treturn 'ImageTextAlternative';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/clipboardobserver\n */\n\nimport { EventInfo } from '@ckeditor/ckeditor5-utils';\n\nimport {\n\tDataTransfer,\n\tDomEventObserver,\n\ttype DomEventData,\n\ttype View,\n\ttype ViewDocumentFragment,\n\ttype ViewElement,\n\ttype ViewRange\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * Clipboard events observer.\n *\n * Fires the following events:\n *\n * * {@link module:engine/view/document~Document#event:clipboardInput},\n * * {@link module:engine/view/document~Document#event:paste},\n * * {@link module:engine/view/document~Document#event:copy},\n * * {@link module:engine/view/document~Document#event:cut},\n * * {@link module:engine/view/document~Document#event:drop},\n * * {@link module:engine/view/document~Document#event:dragover},\n * * {@link module:engine/view/document~Document#event:dragging},\n * * {@link module:engine/view/document~Document#event:dragstart},\n * * {@link module:engine/view/document~Document#event:dragend},\n * * {@link module:engine/view/document~Document#event:dragenter},\n * * {@link module:engine/view/document~Document#event:dragleave}.\n *\n * **Note**: This observer is not available by default (ckeditor5-engine does not add it on its own).\n * To make it available, it needs to be added to {@link module:engine/view/document~Document} by using\n * the {@link module:engine/view/view~View#addObserver `View#addObserver()`} method. Alternatively, you can load the\n * {@link module:clipboard/clipboard~Clipboard} plugin which adds this observer automatically (because it uses it).\n */\nexport default class ClipboardObserver extends DomEventObserver<\n\t'paste' | 'copy' | 'cut' | 'drop' | 'dragover' | 'dragstart' | 'dragend' | 'dragenter' | 'dragleave',\n\tClipboardEventData\n> {\n\tpublic readonly domEventType = [\n\t\t'paste', 'copy', 'cut', 'drop', 'dragover', 'dragstart', 'dragend', 'dragenter', 'dragleave'\n\t] as const;\n\n\tconstructor( view: View ) {\n\t\tsuper( view );\n\n\t\tconst viewDocument = this.document;\n\n\t\tthis.listenTo<ViewDocumentPasteEvent>( viewDocument, 'paste', handleInput( 'clipboardInput' ), { priority: 'low' } );\n\t\tthis.listenTo<ViewDocumentDropEvent>( viewDocument, 'drop', handleInput( 'clipboardInput' ), { priority: 'low' } );\n\t\tthis.listenTo<ViewDocumentDragOverEvent>( viewDocument, 'dragover', handleInput( 'dragging' ), { priority: 'low' } );\n\n\t\tfunction handleInput( type: 'clipboardInput' | 'dragging' ) {\n\t\t\treturn ( evt: EventInfo, data: DomEventData & ClipboardEventData ) => {\n\t\t\t\tdata.preventDefault();\n\n\t\t\t\tconst targetRanges = data.dropRange ? [ data.dropRange ] : null;\n\t\t\t\tconst eventInfo = new EventInfo( viewDocument, type );\n\n\t\t\t\tviewDocument.fire( eventInfo, {\n\t\t\t\t\tdataTransfer: data.dataTransfer,\n\t\t\t\t\tmethod: evt.name,\n\t\t\t\t\ttargetRanges,\n\t\t\t\t\ttarget: data.target\n\t\t\t\t} );\n\n\t\t\t\t// If CKEditor handled the input, do not bubble the original event any further.\n\t\t\t\t// This helps external integrations recognize that fact and act accordingly.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-upload/issues/92\n\t\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\t\tdata.stopPropagation();\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t}\n\n\tpublic onDomEvent( domEvent: ClipboardEvent | DragEvent ): void {\n\t\tconst nativeDataTransfer = 'clipboardData' in domEvent ? domEvent.clipboardData! : domEvent.dataTransfer!;\n\t\tconst cacheFiles = domEvent.type == 'drop' || domEvent.type == 'paste';\n\n\t\tconst evtData: ClipboardEventData = {\n\t\t\tdataTransfer: new DataTransfer( nativeDataTransfer, { cacheFiles } )\n\t\t};\n\n\t\tif ( domEvent.type == 'drop' || domEvent.type == 'dragover' ) {\n\t\t\tevtData.dropRange = getDropViewRange( this.view, domEvent as DragEvent );\n\t\t}\n\n\t\tthis.fire( domEvent.type, domEvent, evtData );\n\t}\n}\n\n/**\n * The data of 'paste', 'copy', 'cut', 'drop', 'dragover', 'dragstart', 'dragend', 'dragenter' and 'dragleave' events.\n */\nexport interface ClipboardEventData {\n\n\t/**\n\t * The data transfer instance.\n\t */\n\tdataTransfer: DataTransfer;\n\n\t/**\n\t * The position into which the content is dropped.\n\t */\n\tdropRange?: ViewRange | null;\n}\n\nfunction getDropViewRange( view: View, domEvent: DragEvent & { rangeParent?: Node; rangeOffset?: number } ) {\n\tconst domDoc = ( domEvent.target as Node ).ownerDocument!;\n\tconst x = domEvent.clientX;\n\tconst y = domEvent.clientY;\n\tlet domRange;\n\n\t// Webkit & Blink.\n\tif ( domDoc.caretRangeFromPoint && domDoc.caretRangeFromPoint( x, y ) ) {\n\t\tdomRange = domDoc.caretRangeFromPoint( x, y );\n\t}\n\t// FF.\n\telse if ( domEvent.rangeParent ) {\n\t\tdomRange = domDoc.createRange();\n\t\tdomRange.setStart( domEvent.rangeParent, domEvent.rangeOffset! );\n\t\tdomRange.collapse( true );\n\t}\n\n\tif ( domRange ) {\n\t\treturn view.domConverter.domRangeToView( domRange );\n\t}\n\n\treturn null;\n}\n\n/**\n * Fired as a continuation of the {@link module:engine/view/document~Document#event:paste} and\n * {@link module:engine/view/document~Document#event:drop} events.\n *\n * It is a part of the {@glink framework/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * This event carries a `dataTransfer` object which comes from the clipboard and whose content should be processed\n * and inserted into the editor.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboard~Clipboard\n *\n * @eventName module:engine/view/document~Document#clipboardInput\n * @param data The event data.\n */\nexport type ViewDocumentClipboardInputEvent = {\n\tname: 'clipboardInput';\n\targs: [ data: DomEventData<ClipboardEvent | DragEvent> & ClipboardInputEventData ];\n};\n\n/**\n * The value of the {@link module:engine/view/document~Document#event:paste},\n * {@link module:engine/view/document~Document#event:copy} and {@link module:engine/view/document~Document#event:cut} events.\n *\n * In order to access the clipboard data, use the `dataTransfer` property.\n */\nexport interface ClipboardInputEventData {\n\n\t/**\n\t * Data transfer instance.\n\t */\n\tdataTransfer: DataTransfer;\n\n\t/**\n\t * Whether the event was triggered by a paste or a drop operation.\n\t */\n\tmethod: 'paste' | 'drop';\n\n\t/**\n\t * The tree view element representing the target.\n\t */\n\ttarget: ViewElement;\n\n\t/**\n\t * The ranges which are the target of the operation (usually – into which the content should be inserted).\n\t * If the clipboard input was triggered by a paste operation, this property is not set. If by a drop operation,\n\t * then it is the drop position (which can be different than the selection at the moment of the drop).\n\t */\n\ttargetRanges: Array<ViewRange> | null;\n\n\t/**\n\t * The content of clipboard input.\n\t */\n\tcontent?: ViewDocumentFragment;\n}\n\n/**\n * Fired when the user drags the content over one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n *\n * @eventName module:engine/view/document~Document#dragover\n * @param data The event data.\n */\nexport type ViewDocumentDragOverEvent = {\n\tname: 'dragover';\n\targs: [ data: DomEventData<DragEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired when the user dropped the content into one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n *\n * @eventName module:engine/view/document~Document#drop\n * @param data The event data.\n */\nexport type ViewDocumentDropEvent = {\n\tname: 'drop';\n\targs: [ data: DomEventData<DragEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired when the user pasted the content into one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n *\n * @eventName module:engine/view/document~Document#paste\n * @param {module:clipboard/clipboardobserver~ClipboardEventData} data The event data.\n */\nexport type ViewDocumentPasteEvent = {\n\tname: 'paste';\n\targs: [ data: DomEventData<ClipboardEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired when the user copied the content from one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n *\n * @eventName module:engine/view/document~Document#copy\n * @param data The event data.\n */\nexport type ViewDocumentCopyEvent = {\n\tname: 'copy';\n\targs: [ data: DomEventData<ClipboardEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired when the user cut the content from one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n *\n * @eventName module:engine/view/document~Document#cut\n * @param data The event data.\n */\nexport type ViewDocumentCutEvent = {\n\tname: 'cut';\n\targs: [ data: DomEventData<ClipboardEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired as a continuation of the {@link module:engine/view/document~Document#event:dragover} event.\n *\n * It is a part of the {@glink framework/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * This event carries a `dataTransfer` object which comes from the clipboard and whose content should be processed\n * and inserted into the editor.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboard~Clipboard\n *\n * @eventName module:engine/view/document~Document#dragging\n * @param data The event data.\n */\nexport type ViewDocumentDraggingEvent = {\n\tname: 'dragging';\n\targs: [ data: DomEventData<DragEvent> & DraggingEventData ];\n};\n\nexport interface DraggingEventData {\n\n\t/**\n\t * The data transfer instance.\n\t */\n\tdataTransfer: DataTransfer;\n\n\t/**\n\t * Whether the event was triggered by a paste or a drop operation.\n\t */\n\tmethod: 'dragover';\n\n\t/**\n\t * The tree view element representing the target.\n\t */\n\ttarget: Element;\n\n\t/**\n\t * Ranges which are the target of the operation (usually – into which the content should be inserted).\n\t * It is the drop position (which can be different than the selection at the moment of drop).\n\t */\n\ttargetRanges: Array<ViewRange> | null;\n}\n\n/**\n * Fired when the user starts dragging the content in one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n *\n * @eventName module:engine/view/document~Document#dragstart\n * @param data The event data.\n */\nexport type ViewDocumentDragStartEvent = {\n\tname: 'dragstart';\n\targs: [ data: DomEventData<DragEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired when the user ended dragging the content.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n *\n * @eventName module:engine/view/document~Document#dragend\n * @param data The event data.\n */\nexport type ViewDocumentDragEndEvent = {\n\tname: 'dragend';\n\targs: [ data: DomEventData<DragEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired when the user drags the content into one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n *\n * @eventName module:engine/view/document~Document#dragenter\n * @param data The event data.\n */\nexport type ViewDocumentDragEnterEvent = {\n\tname: 'dragenter';\n\targs: [ data: DomEventData<DragEvent> & ClipboardEventData ];\n};\n\n/**\n * Fired when the user drags the content out of one of the editing roots of the editor.\n *\n * Introduced by {@link module:clipboard/clipboardobserver~ClipboardObserver}.\n *\n * **Note**: This event is not available by default. To make it available, {@link module:clipboard/clipboardobserver~ClipboardObserver}\n * needs to be added to the {@link module:engine/view/document~Document} by using the {@link module:engine/view/view~View#addObserver}\n * method. This is usually done by the {@link module:clipboard/clipboard~Clipboard} plugin, but if for some reason it is not loaded,\n * the observer must be added manually.\n *\n * @see module:engine/view/document~Document#event:clipboardInput\n *\n * @eventName module:engine/view/document~Document#dragleave\n * @param data The event data.\n */\nexport type ViewDocumentDragLeaveEvent = {\n\tname: 'dragleave';\n\targs: [ data: DomEventData<DragEvent> & ClipboardEventData ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/utils/viewtoplaintext\n */\n\nimport type { ViewDocumentFragment, ViewElement, ViewItem } from '@ckeditor/ckeditor5-engine';\n\n// Elements which should not have empty-line padding.\n// Most `view.ContainerElement` want to be separate by new-line, but some are creating one structure\n// together (like `<li>`) so it is better to separate them by only one \"\\n\".\nconst smallPaddingElements = [ 'figcaption', 'li' ];\n\n/**\n * Converts {@link module:engine/view/item~Item view item} and all of its children to plain text.\n *\n * @param viewItem View item to convert.\n * @returns Plain text representation of `viewItem`.\n */\nexport default function viewToPlainText( viewItem: ViewItem | ViewDocumentFragment ): string {\n\tlet text = '';\n\n\tif ( viewItem.is( '$text' ) || viewItem.is( '$textProxy' ) ) {\n\t\t// If item is `Text` or `TextProxy` simple take its text data.\n\t\ttext = viewItem.data;\n\t} else if ( viewItem.is( 'element', 'img' ) && viewItem.hasAttribute( 'alt' ) ) {\n\t\t// Special case for images - use alt attribute if it is provided.\n\t\ttext = viewItem.getAttribute( 'alt' )!;\n\t} else if ( viewItem.is( 'element', 'br' ) ) {\n\t\t// A soft break should be converted into a single line break (#8045).\n\t\ttext = '\\n';\n\t} else {\n\t\t// Other elements are document fragments, attribute elements or container elements.\n\t\t// They don't have their own text value, so convert their children.\n\t\tlet prev = null;\n\n\t\tfor ( const child of ( viewItem as ViewElement | ViewDocumentFragment ).getChildren() ) {\n\t\t\tconst childText = viewToPlainText( child );\n\n\t\t\t// Separate container element children with one or more new-line characters.\n\t\t\tif ( prev && ( prev.is( 'containerElement' ) || child.is( 'containerElement' ) ) ) {\n\t\t\t\tif (\n\t\t\t\t\tsmallPaddingElements.includes( ( prev as ViewElement ).name ) ||\n\t\t\t\t\tsmallPaddingElements.includes( ( child as ViewElement ).name )\n\t\t\t\t) {\n\t\t\t\t\ttext += '\\n';\n\t\t\t\t} else {\n\t\t\t\t\ttext += '\\n\\n';\n\t\t\t\t}\n\t\t\t}\n\n\t\t\ttext += childText;\n\t\t\tprev = child;\n\t\t}\n\t}\n\n\treturn text;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/clipboardpipeline\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\nimport { EventInfo } from '@ckeditor/ckeditor5-utils';\n\nimport type {\n\tDataTransfer,\n\tDocumentFragment,\n\tDomEventData,\n\tRange,\n\tViewDocumentFragment,\n\tViewRange\n} from '@ckeditor/ckeditor5-engine';\n\nimport ClipboardObserver, {\n\ttype ClipboardEventData,\n\ttype ViewDocumentCopyEvent,\n\ttype ViewDocumentCutEvent,\n\ttype ViewDocumentClipboardInputEvent\n} from './clipboardobserver';\n\nimport plainTextToHtml from './utils/plaintexttohtml';\nimport normalizeClipboardHtml from './utils/normalizeclipboarddata';\nimport viewToPlainText from './utils/viewtoplaintext';\n\n// Input pipeline events overview:\n//\n//              ┌──────────────────────┐          ┌──────────────────────┐\n//              │     view.Document    │          │     view.Document    │\n//              │         paste        │          │         drop         │\n//              └───────────┬──────────┘          └───────────┬──────────┘\n//                          │                                 │\n//                          └────────────────┌────────────────┘\n//                                           │\n//                                 ┌─────────V────────┐\n//                                 │   view.Document  │   Retrieves text/html or text/plain from data.dataTransfer\n//                                 │  clipboardInput  │   and processes it to view.DocumentFragment.\n//                                 └─────────┬────────┘\n//                                           │\n//                               ┌───────────V───────────┐\n//                               │   ClipboardPipeline   │   Converts view.DocumentFragment to model.DocumentFragment.\n//                               │  inputTransformation  │\n//                               └───────────┬───────────┘\n//                                           │\n//                                ┌──────────V──────────┐\n//                                │  ClipboardPipeline  │   Calls model.insertContent().\n//                                │   contentInsertion  │\n//                                └─────────────────────┘\n//\n//\n// Output pipeline events overview:\n//\n//              ┌──────────────────────┐          ┌──────────────────────┐\n//              │     view.Document    │          │     view.Document    │   Retrieves the selected model.DocumentFragment\n//              │         copy         │          │          cut         │   and converts it to view.DocumentFragment.\n//              └───────────┬──────────┘          └───────────┬──────────┘\n//                          │                                 │\n//                          └────────────────┌────────────────┘\n//                                           │\n//                                 ┌─────────V────────┐\n//                                 │   view.Document  │   Processes view.DocumentFragment to text/html and text/plain\n//                                 │  clipboardOutput │   and stores the results in data.dataTransfer.\n//                                 └──────────────────┘\n//\n\n/**\n * The clipboard pipeline feature. It is responsible for intercepting the `paste` and `drop` events and\n * passing the pasted content through a series of events in order to insert it into the editor's content.\n * It also handles the `cut` and `copy` events to fill the native clipboard with the serialized editor's data.\n *\n * # Input pipeline\n *\n * The behavior of the default handlers (all at a `low` priority):\n *\n * ## Event: `paste` or `drop`\n *\n * 1. Translates the event data.\n * 2. Fires the {@link module:engine/view/document~Document#event:clipboardInput `view.Document#clipboardInput`} event.\n *\n * ## Event: `view.Document#clipboardInput`\n *\n * 1. If the `data.content` event field is already set (by some listener on a higher priority), it takes this content and fires the event\n *    from the last point.\n * 2. Otherwise, it retrieves `text/html` or `text/plain` from `data.dataTransfer`.\n * 3. Normalizes the raw data by applying simple filters on string data.\n * 4. Processes the raw data to {@link module:engine/view/documentfragment~DocumentFragment `view.DocumentFragment`} with the\n *    {@link module:engine/controller/datacontroller~DataController#htmlProcessor `DataController#htmlProcessor`}.\n * 5. Fires the {@link module:clipboard/clipboardpipeline~ClipboardPipeline#event:inputTransformation\n *   `ClipboardPipeline#inputTransformation`} event with the view document fragment in the `data.content` event field.\n *\n * ## Event: `ClipboardPipeline#inputTransformation`\n *\n * 1. Converts {@link module:engine/view/documentfragment~DocumentFragment `view.DocumentFragment`} from the `data.content` field to\n *    {@link module:engine/model/documentfragment~DocumentFragment `model.DocumentFragment`}.\n * 2. Fires the {@link module:clipboard/clipboardpipeline~ClipboardPipeline#event:contentInsertion `ClipboardPipeline#contentInsertion`}\n *    event with the model document fragment in the `data.content` event field.\n *    **Note**: The `ClipboardPipeline#contentInsertion` event is fired within a model change block to allow other handlers\n *    to run in the same block without post-fixers called in between (i.e., the selection post-fixer).\n *\n * ## Event: `ClipboardPipeline#contentInsertion`\n *\n * 1. Calls {@link module:engine/model/model~Model#insertContent `model.insertContent()`} to insert `data.content`\n *    at the current selection position.\n *\n * # Output pipeline\n *\n * The behavior of the default handlers (all at a `low` priority):\n *\n * ## Event: `copy`, `cut` or `dragstart`\n *\n * 1. Retrieves the selected {@link module:engine/model/documentfragment~DocumentFragment `model.DocumentFragment`} by calling\n *    {@link module:engine/model/model~Model#getSelectedContent `model#getSelectedContent()`}.\n * 2. Converts the model document fragment to {@link module:engine/view/documentfragment~DocumentFragment `view.DocumentFragment`}.\n * 3. Fires the {@link module:engine/view/document~Document#event:clipboardOutput `view.Document#clipboardOutput`} event\n *    with the view document fragment in the `data.content` event field.\n *\n * ## Event: `view.Document#clipboardOutput`\n *\n * 1. Processes `data.content` to HTML and plain text with the\n *    {@link module:engine/controller/datacontroller~DataController#htmlProcessor `DataController#htmlProcessor`}.\n * 2. Updates the `data.dataTransfer` data for `text/html` and `text/plain` with the processed data.\n * 3. For the `cut` method, calls {@link module:engine/model/model~Model#deleteContent `model.deleteContent()`}\n *    on the current selection.\n *\n * Read more about the clipboard integration in the {@glink framework/deep-dive/clipboard clipboard deep-dive} guide.\n */\nexport default class ClipboardPipeline extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ClipboardPipeline' {\n\t\treturn 'ClipboardPipeline';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\n\t\tview.addObserver( ClipboardObserver );\n\n\t\tthis._setupPasteDrop();\n\t\tthis._setupCopyCut();\n\t}\n\n\t/**\n\t * The clipboard paste pipeline.\n\t */\n\tprivate _setupPasteDrop(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Pasting and dropping is disabled when editor is in the read-only mode.\n\t\t// See: https://github.com/ckeditor/ckeditor5-clipboard/issues/26.\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( viewDocument, 'clipboardInput', evt => {\n\t\t\tif ( editor.isReadOnly ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( viewDocument, 'clipboardInput', ( evt, data ) => {\n\t\t\tconst dataTransfer = data.dataTransfer;\n\t\t\tlet content: ViewDocumentFragment;\n\n\t\t\t// Some feature could already inject content in the higher priority event handler (i.e., codeBlock).\n\t\t\tif ( data.content ) {\n\t\t\t\tcontent = data.content;\n\t\t\t} else {\n\t\t\t\tlet contentData = '';\n\n\t\t\t\tif ( dataTransfer.getData( 'text/html' ) ) {\n\t\t\t\t\tcontentData = normalizeClipboardHtml( dataTransfer.getData( 'text/html' ) );\n\t\t\t\t} else if ( dataTransfer.getData( 'text/plain' ) ) {\n\t\t\t\t\tcontentData = plainTextToHtml( dataTransfer.getData( 'text/plain' ) );\n\t\t\t\t}\n\n\t\t\t\tcontent = this.editor.data.htmlProcessor.toView( contentData );\n\t\t\t}\n\n\t\t\tconst eventInfo = new EventInfo( this, 'inputTransformation' );\n\n\t\t\tthis.fire<ClipboardInputTransformationEvent>( eventInfo, {\n\t\t\t\tcontent,\n\t\t\t\tdataTransfer,\n\t\t\t\ttargetRanges: data.targetRanges,\n\t\t\t\tmethod: data.method as 'paste' | 'drop'\n\t\t\t} );\n\n\t\t\t// If CKEditor handled the input, do not bubble the original event any further.\n\t\t\t// This helps external integrations recognize this fact and act accordingly.\n\t\t\t// https://github.com/ckeditor/ckeditor5-upload/issues/92\n\t\t\tif ( eventInfo.stop.called ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\n\t\t\tview.scrollToTheSelection();\n\t\t}, { priority: 'low' } );\n\n\t\tthis.listenTo<ClipboardInputTransformationEvent>( this, 'inputTransformation', ( evt, data ) => {\n\t\t\tif ( data.content.isEmpty ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst dataController = this.editor.data;\n\n\t\t\t// Convert the pasted content into a model document fragment.\n\t\t\t// The conversion is contextual, but in this case an \"all allowed\" context is needed\n\t\t\t// and for that we use the $clipboardHolder item.\n\t\t\tconst modelFragment = dataController.toModel( data.content, '$clipboardHolder' );\n\n\t\t\tif ( modelFragment.childCount == 0 ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\t// Fire content insertion event in a single change block to allow other handlers to run in the same block\n\t\t\t// without post-fixers called in between (i.e., the selection post-fixer).\n\t\t\tmodel.change( () => {\n\t\t\t\tthis.fire<ClipboardContentInsertionEvent>( 'contentInsertion', {\n\t\t\t\t\tcontent: modelFragment,\n\t\t\t\t\tmethod: data.method,\n\t\t\t\t\tdataTransfer: data.dataTransfer,\n\t\t\t\t\ttargetRanges: data.targetRanges\n\t\t\t\t} );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\n\t\tthis.listenTo<ClipboardContentInsertionEvent>( this, 'contentInsertion', ( evt, data ) => {\n\t\t\tdata.resultRange = model.insertContent( data.content );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * The clipboard copy/cut pipeline.\n\t */\n\tprivate _setupCopyCut(): void {\n\t\tconst editor = this.editor;\n\t\tconst modelDocument = editor.model.document;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tconst onCopyCut = ( evt: EventInfo<'copy' | 'cut'>, data: DomEventData<ClipboardEvent> & ClipboardEventData ) => {\n\t\t\tconst dataTransfer = data.dataTransfer;\n\n\t\t\tdata.preventDefault();\n\n\t\t\tconst content = editor.data.toView( editor.model.getSelectedContent( modelDocument.selection ) );\n\n\t\t\tviewDocument.fire<ViewDocumentClipboardOutputEvent>( 'clipboardOutput', {\n\t\t\t\tdataTransfer,\n\t\t\t\tcontent,\n\t\t\t\tmethod: evt.name\n\t\t\t} );\n\t\t};\n\n\t\tthis.listenTo<ViewDocumentCopyEvent>( viewDocument, 'copy', onCopyCut, { priority: 'low' } );\n\t\tthis.listenTo<ViewDocumentCutEvent>( viewDocument, 'cut', ( evt, data ) => {\n\t\t\t// Cutting is disabled when editor is in the read-only mode.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5-clipboard/issues/26.\n\t\t\tif ( editor.isReadOnly ) {\n\t\t\t\tdata.preventDefault();\n\t\t\t} else {\n\t\t\t\tonCopyCut( evt, data );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\tthis.listenTo<ViewDocumentClipboardOutputEvent>( viewDocument, 'clipboardOutput', ( evt, data ) => {\n\t\t\tif ( !data.content.isEmpty ) {\n\t\t\t\tdata.dataTransfer.setData( 'text/html', this.editor.data.htmlProcessor.toData( data.content ) );\n\t\t\t\tdata.dataTransfer.setData( 'text/plain', viewToPlainText( data.content ) );\n\t\t\t}\n\n\t\t\tif ( data.method == 'cut' ) {\n\t\t\t\teditor.model.deleteContent( modelDocument.selection );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t}\n}\n\n/**\n * Fired with the `content`, `dataTransfer`, `method`, and `targetRanges` properties:\n *\n * * The `content` which comes from the clipboard (it was pasted or dropped) should be processed in order to be inserted into the editor.\n * * The `dataTransfer` object is available in case the transformation functions need access to the raw clipboard data.\n * * The `method` indicates the original DOM event (for example `'drop'` or `'paste'`).\n * * The `targetRanges` property is an array of view ranges (it is available only for `'drop'`).\n *\n * It is a part of the {@glink framework/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * **Note**: You should not stop this event if you want to change the input data. You should modify the `content` property instead.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline\n *\n * @eventName ~ClipboardPipeline#inputTransformation\n * @param data The event data.\n */\nexport type ClipboardInputTransformationEvent = {\n\tname: 'inputTransformation';\n\targs: [ data: ClipboardInputTransformationData ];\n};\n\n/**\n * The data of 'inputTransformation' event.\n */\nexport interface ClipboardInputTransformationData {\n\n\t/**\n\t * The event data.\n\t * The content to be inserted into the editor. It can be modified by event listeners. Read more about the clipboard pipelines in\n\t * the {@glink framework/deep-dive/clipboard clipboard deep-dive} guide.\n\t */\n\tcontent: ViewDocumentFragment;\n\n\t/**\n\t * The data transfer instance.\n\t */\n\tdataTransfer: DataTransfer;\n\n\t/**\n\t * The target drop ranges.\n\t */\n\ttargetRanges: Array<ViewRange> | null;\n\n\t/**\n\t * Whether the event was triggered by a paste or a drop operation.\n\t */\n\tmethod: 'paste' | 'drop';\n}\n\n/**\n * Fired with the `content`, `dataTransfer`, `method`, and `targetRanges` properties:\n *\n * * The `content` which comes from the clipboard (was pasted or dropped) should be processed in order to be inserted into the editor.\n * * The `dataTransfer` object is available in case the transformation functions need access to the raw clipboard data.\n * * The `method` indicates the original DOM event (for example `'drop'` or `'paste'`).\n * * The `targetRanges` property is an array of view ranges (it is available only for `'drop'`).\n *\n * Event handlers can modify the content according to the final insertion position.\n *\n * It is a part of the {@glink framework/deep-dive/clipboard#input-pipeline clipboard input pipeline}.\n *\n * **Note**: You should not stop this event if you want to change the input data. You should modify the `content` property instead.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline#event:inputTransformation\n *\n * @eventName ~ClipboardPipeline#contentInsertion\n * @param data The event data.\n */\nexport type ClipboardContentInsertionEvent = {\n\tname: 'contentInsertion';\n\targs: [ data: ClipboardContentInsertionData ];\n};\n\n/**\n * The data of 'contentInsertion' event.\n */\nexport interface ClipboardContentInsertionData {\n\n\t/**\n\t * The content to be inserted into the editor.\n\t * Read more about the clipboard pipelines in the {@glink framework/deep-dive/clipboard clipboard deep-dive} guide.\n\t */\n\tcontent: DocumentFragment;\n\n\t/**\n\t * Whether the event was triggered by a paste or a drop operation.\n\t */\n\tmethod: 'paste' | 'drop';\n\n\t/**\n\t * The data transfer instance.\n\t */\n\n\tdataTransfer: DataTransfer;\n\n\t/**\n\t * The target drop ranges.\n\t */\n\ttargetRanges: Array<ViewRange> | null;\n\n\t/**\n\t * The result of the `model.insertContent()` call\n\t * (inserted by the event handler at a low priority).\n\t */\n\tresultRange?: Range;\n}\n\n/**\n * Fired on {@link module:engine/view/document~Document#event:copy} and {@link module:engine/view/document~Document#event:cut}\n * with a copy of the selected content. The content can be processed before it ends up in the clipboard.\n *\n * It is a part of the {@glink framework/deep-dive/clipboard#output-pipeline clipboard output pipeline}.\n *\n * @see module:clipboard/clipboardobserver~ClipboardObserver\n * @see module:clipboard/clipboardpipeline~ClipboardPipeline\n *\n * @eventName module:engine/view/document~Document#clipboardOutput\n * @param data The event data.\n */\nexport type ViewDocumentClipboardOutputEvent = {\n\tname: 'clipboardOutput';\n\targs: [ data: ViewDocumentClipboardOutputEventData ];\n};\n\n/**\n * The value of the 'clipboardOutput' event.\n */\nexport interface ViewDocumentClipboardOutputEventData {\n\n\t/**\n\t * The data transfer instance.\n\t *\n\t * @readonly\n\t */\n\tdataTransfer: DataTransfer;\n\n\t/**\n\t * Content to be put into the clipboard. It can be modified by the event listeners.\n\t * Read more about the clipboard pipelines in the {@glink framework/deep-dive/clipboard clipboard deep-dive} guide.\n\t */\n\tcontent: ViewDocumentFragment;\n\n\t/**\n\t * Whether the event was triggered by a copy or cut operation.\n\t */\n\tmethod: 'copy' | 'cut' | 'dragstart';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/utils/normalizeclipboarddata\n */\n\n/**\n * Removes some popular browser quirks out of the clipboard data (HTML).\n * Removes all HTML comments. These are considered an internal thing and it makes little sense if they leak into the editor data.\n *\n * @param data The HTML data to normalize.\n * @returns Normalized HTML.\n */\nexport default function normalizeClipboardData( data: string ): string {\n\treturn data\n\t\t.replace( /<span(?: class=\"Apple-converted-space\"|)>(\\s+)<\\/span>/g, ( fullMatch, spaces ) => {\n\t\t\t// Handle the most popular and problematic case when even a single space becomes an nbsp;.\n\t\t\t// Decode those to normal spaces. Read more in https://github.com/ckeditor/ckeditor5-clipboard/issues/2.\n\t\t\tif ( spaces.length == 1 ) {\n\t\t\t\treturn ' ';\n\t\t\t}\n\n\t\t\treturn spaces;\n\t\t} )\n\t\t// Remove all HTML comments.\n\t\t.replace( /<!--[\\s\\S]*?-->/g, '' );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/utils/plaintexttohtml\n */\n\n/**\n * Converts plain text to its HTML-ized version.\n *\n * @param text The plain text to convert.\n * @returns HTML generated from the plain text.\n */\nexport default function plainTextToHtml( text: string ): string {\n\ttext = text\n\t\t// Encode <>.\n\t\t.replace( /</g, '&lt;' )\n\t\t.replace( />/g, '&gt;' )\n\t\t// Creates a paragraph for each double line break.\n\t\t.replace( /\\r?\\n\\r?\\n/g, '</p><p>' )\n\t\t// Creates a line break for each single line break.\n\t\t.replace( /\\r?\\n/g, '<br>' )\n\t\t// Replace tabs with four spaces.\n\t\t.replace( /\\t/g, '&nbsp;&nbsp;&nbsp;&nbsp;' )\n\t\t// Preserve trailing spaces (only the first and last one – the rest is handled below).\n\t\t.replace( /^\\s/, '&nbsp;' )\n\t\t.replace( /\\s$/, '&nbsp;' )\n\t\t// Preserve other subsequent spaces now.\n\t\t.replace( /\\s\\s/g, ' &nbsp;' );\n\n\tif ( text.includes( '</p><p>' ) || text.includes( '<br>' ) ) {\n\t\t// If we created paragraphs above, add the trailing ones.\n\t\ttext = `<p>${ text }</p>`;\n\t}\n\n\t// TODO:\n\t// * What about '\\nfoo' vs ' foo'?\n\n\treturn text;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./clipboard.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/dragdrop\n */\n\n/* globals setTimeout, clearTimeout */\n\nimport { Plugin, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport {\n\tLiveRange,\n\tMouseObserver,\n\ttype DataTransfer,\n\ttype Element,\n\ttype Position,\n\ttype Range,\n\ttype ViewDocumentMouseDownEvent,\n\ttype ViewDocumentMouseUpEvent,\n\ttype ViewElement,\n\ttype ViewRange\n} from '@ckeditor/ckeditor5-engine';\n\nimport { Widget, isWidget, type WidgetToolbarRepository } from '@ckeditor/ckeditor5-widget';\n\nimport { env, uid, type ObservableChangeEvent } from '@ckeditor/ckeditor5-utils';\n\nimport ClipboardPipeline, { type ClipboardContentInsertionEvent, type ViewDocumentClipboardOutputEvent } from './clipboardpipeline';\nimport ClipboardObserver, {\n\ttype ViewDocumentDragEndEvent,\n\ttype ViewDocumentDragEnterEvent,\n\ttype ViewDocumentDraggingEvent,\n\ttype ViewDocumentDragLeaveEvent,\n\ttype ViewDocumentDragStartEvent,\n\ttype ViewDocumentClipboardInputEvent\n} from './clipboardobserver';\n\nimport { type DebouncedFunc, throttle } from 'lodash-es';\n\nimport '../theme/clipboard.css';\n\n// Drag and drop events overview:\n//\n//                ┌──────────────────┐\n//                │     mousedown    │   Sets the draggable attribute.\n//                └─────────┬────────┘\n//                          │\n//                          └─────────────────────┐\n//                          │                     │\n//                          │           ┌─────────V────────┐\n//                          │           │      mouseup     │   Dragging did not start, removes the draggable attribute.\n//                          │           └──────────────────┘\n//                          │\n//                ┌─────────V────────┐   Retrieves the selected model.DocumentFragment\n//                │     dragstart    │   and converts it to view.DocumentFragment.\n//                └─────────┬────────┘\n//                          │\n//                ┌─────────V────────┐   Processes view.DocumentFragment to text/html and text/plain\n//                │  clipboardOutput │   and stores the results in data.dataTransfer.\n//                └─────────┬────────┘\n//                          │\n//                          │   DOM dragover\n//                          ┌────────────┐\n//                          │            │\n//                ┌─────────V────────┐   │\n//                │     dragging     │   │   Updates the drop target marker.\n//                └─────────┬────────┘   │\n//                          │            │\n//            ┌─────────────└────────────┘\n//            │             │            │\n//            │   ┌─────────V────────┐   │\n//            │   │     dragleave    │   │   Removes the drop target marker.\n//            │   └─────────┬────────┘   │\n//            │             │            │\n//        ┌───│─────────────┘            │\n//        │   │             │            │\n//        │   │   ┌─────────V────────┐   │\n//        │   │   │     dragenter    │   │   Focuses the editor view.\n//        │   │   └─────────┬────────┘   │\n//        │   │             │            │\n//        │   │             └────────────┘\n//        │   │\n//        │   └─────────────┐\n//        │   │             │\n//        │   │   ┌─────────V────────┐\n//        └───┐   │       drop       │   (The default handler of the clipboard pipeline).\n//            │   └─────────┬────────┘\n//            │             │\n//            │   ┌─────────V────────┐   Resolves the final data.targetRanges.\n//            │   │  clipboardInput  │   Aborts if dropping on dragged content.\n//            │   └─────────┬────────┘\n//            │             │\n//            │   ┌─────────V────────┐\n//            │   │  clipboardInput  │   (The default handler of the clipboard pipeline).\n//            │   └─────────┬────────┘\n//            │             │\n//            │ ┌───────────V───────────┐\n//            │ │  inputTransformation  │   (The default handler of the clipboard pipeline).\n//            │ └───────────┬───────────┘\n//            │             │\n//            │  ┌──────────V──────────┐\n//            │  │   contentInsertion  │   Updates the document selection to drop range.\n//            │  └──────────┬──────────┘\n//            │             │\n//            │  ┌──────────V──────────┐\n//            │  │   contentInsertion  │   (The default handler of the clipboard pipeline).\n//            │  └──────────┬──────────┘\n//            │             │\n//            │  ┌──────────V──────────┐\n//            │  │   contentInsertion  │   Removes the content from the original range if the insertion was successful.\n//            │  └──────────┬──────────┘\n//            │             │\n//            └─────────────┐\n//                          │\n//                ┌─────────V────────┐\n//                │      dragend     │   Removes the drop marker and cleans the state.\n//                └──────────────────┘\n//\n\n/**\n * The drag and drop feature. It works on top of the {@link module:clipboard/clipboardpipeline~ClipboardPipeline}.\n *\n * Read more about the clipboard integration in the {@glink framework/deep-dive/clipboard clipboard deep-dive} guide.\n */\nexport default class DragDrop extends Plugin {\n\t/**\n\t * The live range over the original content that is being dragged.\n\t */\n\tprivate _draggedRange!: LiveRange | null;\n\n\t/**\n\t * The UID of current dragging that is used to verify if the drop started in the same editor as the drag start.\n\t *\n\t * **Note**: This is a workaround for broken 'dragend' events (they are not fired if the source text node got removed).\n\t */\n\tprivate _draggingUid!: string;\n\n\t/**\n\t * The reference to the model element that currently has a `draggable` attribute set (it is set while dragging).\n\t */\n\tprivate _draggableElement!: Element | null;\n\n\t/**\n\t * A throttled callback updating the drop marker.\n\t */\n\tprivate _updateDropMarkerThrottled!: DebouncedFunc<( targetRange: Range ) => void>;\n\n\t/**\n\t * A delayed callback removing the drop marker.\n\t */\n\tprivate _removeDropMarkerDelayed!: DelayedFunc<() => void>;\n\n\t/**\n\t * A delayed callback removing draggable attributes.\n\t */\n\tprivate _clearDraggableAttributesDelayed!: DelayedFunc<() => void>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'DragDrop' {\n\t\treturn 'DragDrop';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ClipboardPipeline, Widget ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\n\t\tthis._draggedRange = null;\n\t\tthis._draggingUid = '';\n\t\tthis._draggableElement = null;\n\t\tthis._updateDropMarkerThrottled = throttle( targetRange => this._updateDropMarker( targetRange ), 40 );\n\t\tthis._removeDropMarkerDelayed = delay( () => this._removeDropMarker(), 40 );\n\t\tthis._clearDraggableAttributesDelayed = delay( () => this._clearDraggableAttributes(), 40 );\n\n\t\tview.addObserver( ClipboardObserver );\n\t\tview.addObserver( MouseObserver );\n\n\t\tthis._setupDragging();\n\t\tthis._setupContentInsertionIntegration();\n\t\tthis._setupClipboardInputIntegration();\n\t\tthis._setupDropMarker();\n\t\tthis._setupDraggableAttributeHandling();\n\n\t\tthis.listenTo<ObservableChangeEvent<boolean>>( editor, 'change:isReadOnly', ( evt, name, isReadOnly ) => {\n\t\t\tif ( isReadOnly ) {\n\t\t\t\tthis.forceDisabled( 'readOnlyMode' );\n\t\t\t} else {\n\t\t\t\tthis.clearForceDisabled( 'readOnlyMode' );\n\t\t\t}\n\t\t} );\n\n\t\tthis.on<ObservableChangeEvent<boolean>>( 'change:isEnabled', ( evt, name, isEnabled ) => {\n\t\t\tif ( !isEnabled ) {\n\t\t\t\tthis._finalizeDragging( false );\n\t\t\t}\n\t\t} );\n\n\t\tif ( env.isAndroid ) {\n\t\t\tthis.forceDisabled( 'noAndroidSupport' );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tif ( this._draggedRange ) {\n\t\t\tthis._draggedRange.detach();\n\t\t\tthis._draggedRange = null;\n\t\t}\n\n\t\tthis._updateDropMarkerThrottled.cancel();\n\t\tthis._removeDropMarkerDelayed.cancel();\n\t\tthis._clearDraggableAttributesDelayed.cancel();\n\n\t\treturn super.destroy();\n\t}\n\n\t/**\n\t * Drag and drop events handling.\n\t */\n\tprivate _setupDragging(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst modelDocument = model.document;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// The handler for the drag start; it is responsible for setting data transfer object.\n\t\tthis.listenTo<ViewDocumentDragStartEvent>( viewDocument, 'dragstart', ( evt, data ) => {\n\t\t\tconst selection = modelDocument.selection;\n\n\t\t\t// Don't drag the editable element itself.\n\t\t\tif ( data.target && data.target.is( 'editableElement' ) ) {\n\t\t\t\tdata.preventDefault();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// TODO we could clone this node somewhere and style it to match editing view but without handles,\n\t\t\t//  selection outline, WTA buttons, etc.\n\t\t\t// data.dataTransfer._native.setDragImage( data.domTarget, 0, 0 );\n\n\t\t\t// Check if this is dragstart over the widget (but not a nested editable).\n\t\t\tconst draggableWidget = data.target ? findDraggableWidget( data.target ) : null;\n\n\t\t\tif ( draggableWidget ) {\n\t\t\t\tconst modelElement = editor.editing.mapper.toModelElement( draggableWidget )!;\n\n\t\t\t\tthis._draggedRange = LiveRange.fromRange( model.createRangeOn( modelElement ) );\n\n\t\t\t\t// Disable toolbars so they won't obscure the drop area.\n\t\t\t\tif ( editor.plugins.has( 'WidgetToolbarRepository' ) ) {\n\t\t\t\t\tconst widgetToolbarRepository: WidgetToolbarRepository = editor.plugins.get( 'WidgetToolbarRepository' );\n\n\t\t\t\t\twidgetToolbarRepository.forceDisabled( 'dragDrop' );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If this was not a widget we should check if we need to drag some text content.\n\t\t\telse if ( !viewDocument.selection.isCollapsed ) {\n\t\t\t\tconst selectedElement = viewDocument.selection.getSelectedElement();\n\n\t\t\t\tif ( !selectedElement || !isWidget( selectedElement ) ) {\n\t\t\t\t\tthis._draggedRange = LiveRange.fromRange( selection.getFirstRange()! );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( !this._draggedRange ) {\n\t\t\t\tdata.preventDefault();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._draggingUid = uid();\n\n\t\t\tdata.dataTransfer.effectAllowed = this.isEnabled ? 'copyMove' : 'copy';\n\t\t\tdata.dataTransfer.setData( 'application/ckeditor5-dragging-uid', this._draggingUid );\n\n\t\t\tconst draggedSelection = model.createSelection( this._draggedRange.toRange() );\n\t\t\tconst content = editor.data.toView( model.getSelectedContent( draggedSelection ) );\n\n\t\t\tviewDocument.fire<ViewDocumentClipboardOutputEvent>( 'clipboardOutput', {\n\t\t\t\tdataTransfer: data.dataTransfer,\n\t\t\t\tcontent,\n\t\t\t\tmethod: 'dragstart'\n\t\t\t} );\n\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tthis._draggedRange.detach();\n\t\t\t\tthis._draggedRange = null;\n\t\t\t\tthis._draggingUid = '';\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\n\t\t// The handler for finalizing drag and drop. It should always be triggered after dragging completes\n\t\t// even if it was completed in a different application.\n\t\t// Note: This is not fired if source text node got removed while downcasting a marker.\n\t\tthis.listenTo<ViewDocumentDragEndEvent>( viewDocument, 'dragend', ( evt, data ) => {\n\t\t\tthis._finalizeDragging( !data.dataTransfer.isCanceled && data.dataTransfer.dropEffect == 'move' );\n\t\t}, { priority: 'low' } );\n\n\t\t// Dragging over the editable.\n\t\tthis.listenTo<ViewDocumentDragEnterEvent>( viewDocument, 'dragenter', () => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tview.focus();\n\t\t} );\n\n\t\t// Dragging out of the editable.\n\t\tthis.listenTo<ViewDocumentDragLeaveEvent>( viewDocument, 'dragleave', () => {\n\t\t\t// We do not know if the mouse left the editor or just some element in it, so let us wait a few milliseconds\n\t\t\t// to check if 'dragover' is not fired.\n\t\t\tthis._removeDropMarkerDelayed();\n\t\t} );\n\n\t\t// Handler for moving dragged content over the target area.\n\t\tthis.listenTo<ViewDocumentDraggingEvent>( viewDocument, 'dragging', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tdata.dataTransfer.dropEffect = 'none';\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._removeDropMarkerDelayed.cancel();\n\n\t\t\tconst targetRange = findDropTargetRange( editor, data.targetRanges, data.target );\n\n\t\t\t// If this is content being dragged from another editor, moving out of current editor instance\n\t\t\t// is not possible until 'dragend' event case will be fixed.\n\t\t\tif ( !this._draggedRange ) {\n\t\t\t\tdata.dataTransfer.dropEffect = 'copy';\n\t\t\t}\n\n\t\t\t// In Firefox it is already set and effect allowed remains the same as originally set.\n\t\t\tif ( !env.isGecko ) {\n\t\t\t\tif ( data.dataTransfer.effectAllowed == 'copy' ) {\n\t\t\t\t\tdata.dataTransfer.dropEffect = 'copy';\n\t\t\t\t} else if ( [ 'all', 'copyMove' ].includes( data.dataTransfer.effectAllowed ) ) {\n\t\t\t\t\tdata.dataTransfer.dropEffect = 'move';\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/* istanbul ignore else -- @preserve */\n\t\t\tif ( targetRange ) {\n\t\t\t\tthis._updateDropMarkerThrottled( targetRange );\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Integration with the `clipboardInput` event.\n\t */\n\tprivate _setupClipboardInputIntegration(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Update the event target ranges and abort dropping if dropping over itself.\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( viewDocument, 'clipboardInput', ( evt, data ) => {\n\t\t\tif ( data.method != 'drop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst targetRange = findDropTargetRange( editor, data.targetRanges, data.target );\n\n\t\t\t// The dragging markers must be removed after searching for the target range because sometimes\n\t\t\t// the target lands on the marker itself.\n\t\t\tthis._removeDropMarker();\n\n\t\t\t/* istanbul ignore if -- @preserve */\n\t\t\tif ( !targetRange ) {\n\t\t\t\tthis._finalizeDragging( false );\n\t\t\t\tevt.stop();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Since we cannot rely on the drag end event, we must check if the local drag range is from the current drag and drop\n\t\t\t// or it is from some previous not cleared one.\n\t\t\tif ( this._draggedRange && this._draggingUid != data.dataTransfer.getData( 'application/ckeditor5-dragging-uid' ) ) {\n\t\t\t\tthis._draggedRange.detach();\n\t\t\t\tthis._draggedRange = null;\n\t\t\t\tthis._draggingUid = '';\n\t\t\t}\n\n\t\t\t// Do not do anything if some content was dragged within the same document to the same position.\n\t\t\tconst isMove = getFinalDropEffect( data.dataTransfer ) == 'move';\n\n\t\t\tif ( isMove && this._draggedRange && this._draggedRange.containsRange( targetRange, true ) ) {\n\t\t\t\tthis._finalizeDragging( false );\n\t\t\t\tevt.stop();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Override the target ranges with the one adjusted to the best one for a drop.\n\t\t\tdata.targetRanges = [ editor.editing.mapper.toViewRange( targetRange ) ];\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Integration with the `contentInsertion` event of the clipboard pipeline.\n\t */\n\tprivate _setupContentInsertionIntegration(): void {\n\t\tconst clipboardPipeline = this.editor.plugins.get( ClipboardPipeline );\n\n\t\tclipboardPipeline.on<ClipboardContentInsertionEvent>( 'contentInsertion', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled || data.method !== 'drop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Update the selection to the target range in the same change block to avoid selection post-fixing\n\t\t\t// and to be able to clone text attributes for plain text dropping.\n\t\t\tconst ranges = data.targetRanges!.map( viewRange => this.editor.editing.mapper.toModelRange( viewRange ) );\n\n\t\t\tthis.editor.model.change( writer => writer.setSelection( ranges ) );\n\t\t}, { priority: 'high' } );\n\n\t\tclipboardPipeline.on<ClipboardContentInsertionEvent>( 'contentInsertion', ( evt, data ) => {\n\t\t\tif ( !this.isEnabled || data.method !== 'drop' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Remove dragged range content, remove markers, clean after dragging.\n\t\t\tconst isMove = getFinalDropEffect( data.dataTransfer ) == 'move';\n\n\t\t\t// Whether any content was inserted (insertion might fail if the schema is disallowing some elements\n\t\t\t// (for example an image caption allows only the content of a block but not blocks themselves.\n\t\t\t// Some integrations might not return valid range (i.e., table pasting).\n\t\t\tconst isSuccess = !data.resultRange || !data.resultRange.isCollapsed;\n\n\t\t\tthis._finalizeDragging( isSuccess && isMove );\n\t\t}, { priority: 'lowest' } );\n\t}\n\n\t/**\n\t * Adds listeners that add the `draggable` attribute to the elements while the mouse button is down so the dragging could start.\n\t */\n\tprivate _setupDraggableAttributeHandling(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\t// Add the 'draggable' attribute to the widget while pressing the selection handle.\n\t\t// This is required for widgets to be draggable. In Chrome it will enable dragging text nodes.\n\t\tthis.listenTo<ViewDocumentMouseDownEvent>( viewDocument, 'mousedown', ( evt, data ) => {\n\t\t\t// The lack of data can be caused by editor tests firing fake mouse events. This should not occur\n\t\t\t// in real-life scenarios but this greatly simplifies editor tests that would otherwise fail a lot.\n\t\t\tif ( env.isAndroid || !data ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis._clearDraggableAttributesDelayed.cancel();\n\n\t\t\t// Check if this is a mousedown over the widget (but not a nested editable).\n\t\t\tlet draggableElement = findDraggableWidget( data.target );\n\n\t\t\t// Note: There is a limitation that if more than a widget is selected (a widget and some text)\n\t\t\t// and dragging starts on the widget, then only the widget is dragged.\n\n\t\t\t// If this was not a widget then we should check if we need to drag some text content.\n\t\t\t// In Chrome set a 'draggable' attribute on closest editable to allow immediate dragging of the selected text range.\n\t\t\t// In Firefox this is not needed. In Safari it makes the whole editable draggable (not just textual content).\n\t\t\t// Disabled in read-only mode because draggable=\"true\" + contenteditable=\"false\" results\n\t\t\t// in not firing selectionchange event ever, which makes the selection stuck in read-only mode.\n\t\t\tif ( env.isBlink && !editor.isReadOnly && !draggableElement && !viewDocument.selection.isCollapsed ) {\n\t\t\t\tconst selectedElement = viewDocument.selection.getSelectedElement();\n\n\t\t\t\tif ( !selectedElement || !isWidget( selectedElement ) ) {\n\t\t\t\t\tdraggableElement = viewDocument.selection.editableElement;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( draggableElement ) {\n\t\t\t\tview.change( writer => {\n\t\t\t\t\twriter.setAttribute( 'draggable', 'true', draggableElement! );\n\t\t\t\t} );\n\n\t\t\t\t// Keep the reference to the model element in case the view element gets removed while dragging.\n\t\t\t\tthis._draggableElement = editor.editing.mapper.toModelElement( draggableElement )!;\n\t\t\t}\n\t\t} );\n\n\t\t// Remove the draggable attribute in case no dragging started (only mousedown + mouseup).\n\t\tthis.listenTo<ViewDocumentMouseUpEvent>( viewDocument, 'mouseup', () => {\n\t\t\tif ( !env.isAndroid ) {\n\t\t\t\tthis._clearDraggableAttributesDelayed();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes the `draggable` attribute from the element that was used for dragging.\n\t */\n\tprivate _clearDraggableAttributes(): void {\n\t\tconst editing = this.editor.editing;\n\n\t\tediting.view.change( writer => {\n\t\t\t// Remove 'draggable' attribute.\n\t\t\tif ( this._draggableElement && this._draggableElement.root.rootName != '$graveyard' ) {\n\t\t\t\twriter.removeAttribute( 'draggable', editing.mapper.toViewElement( this._draggableElement )! );\n\t\t\t}\n\n\t\t\tthis._draggableElement = null;\n\t\t} );\n\t}\n\n\t/**\n\t * Creates downcast conversion for the drop target marker.\n\t */\n\tprivate _setupDropMarker(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Drop marker conversion for hovering over widgets.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: 'drop-target',\n\t\t\tview: {\n\t\t\t\tclasses: [ 'ck-clipboard-drop-target-range' ]\n\t\t\t}\n\t\t} );\n\n\t\t// Drop marker conversion for in text drop target.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t\t\tmodel: 'drop-target',\n\t\t\tview: ( data, { writer } ) => {\n\t\t\t\tconst inText = editor.model.schema.checkChild( data.markerRange.start, '$text' );\n\n\t\t\t\tif ( !inText ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createUIElement( 'span', { class: 'ck ck-clipboard-drop-target-position' }, function( domDocument ) {\n\t\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\t\t// Using word joiner to make this marker as high as text and also making text not break on marker.\n\t\t\t\t\tdomElement.append( '\\u2060', domDocument.createElement( 'span' ), '\\u2060' );\n\n\t\t\t\t\treturn domElement;\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Updates the drop target marker to the provided range.\n\t *\n\t * @param targetRange The range to set the marker to.\n\t */\n\tprivate _updateDropMarker( targetRange: Range ): void {\n\t\tconst editor = this.editor;\n\t\tconst markers = editor.model.markers;\n\n\t\teditor.model.change( writer => {\n\t\t\tif ( markers.has( 'drop-target' ) ) {\n\t\t\t\tif ( !markers.get( 'drop-target' )!.getRange().isEqual( targetRange ) ) {\n\t\t\t\t\twriter.updateMarker( 'drop-target', { range: targetRange } );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\twriter.addMarker( 'drop-target', {\n\t\t\t\t\trange: targetRange,\n\t\t\t\t\tusingOperation: false,\n\t\t\t\t\taffectsData: false\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes the drop target marker.\n\t */\n\tprivate _removeDropMarker(): void {\n\t\tconst model = this.editor.model;\n\n\t\tthis._removeDropMarkerDelayed.cancel();\n\t\tthis._updateDropMarkerThrottled.cancel();\n\n\t\tif ( model.markers.has( 'drop-target' ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.removeMarker( 'drop-target' );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Deletes the dragged content from its original range and clears the dragging state.\n\t *\n\t * @param moved Whether the move succeeded.\n\t */\n\tprivate _finalizeDragging( moved: boolean ): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tthis._removeDropMarker();\n\t\tthis._clearDraggableAttributes();\n\n\t\tif ( editor.plugins.has( 'WidgetToolbarRepository' ) ) {\n\t\t\tconst widgetToolbarRepository: WidgetToolbarRepository = editor.plugins.get( 'WidgetToolbarRepository' );\n\n\t\t\twidgetToolbarRepository.clearForceDisabled( 'dragDrop' );\n\t\t}\n\n\t\tthis._draggingUid = '';\n\n\t\tif ( !this._draggedRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Delete moved content.\n\t\tif ( moved && this.isEnabled ) {\n\t\t\tmodel.deleteContent( model.createSelection( this._draggedRange ), { doNotAutoparagraph: true } );\n\t\t}\n\n\t\tthis._draggedRange.detach();\n\t\tthis._draggedRange = null;\n\t}\n}\n\n/**\n * Returns fixed selection range for given position and target element.\n */\nfunction findDropTargetRange( editor: Editor, targetViewRanges: Array<ViewRange> | null, targetViewElement: ViewElement ): Range | null {\n\tconst model = editor.model;\n\tconst mapper = editor.editing.mapper;\n\n\tlet range: Range | null = null;\n\n\tconst targetViewPosition = targetViewRanges ? targetViewRanges[ 0 ].start : null;\n\n\t// A UIElement is not a valid drop element, use parent (this could be a drop marker or any other UIElement).\n\tif ( targetViewElement.is( 'uiElement' ) ) {\n\t\ttargetViewElement = targetViewElement.parent as ViewElement;\n\t}\n\n\t// Quick win if the target is a widget (but not a nested editable).\n\trange = findDropTargetRangeOnWidget( editor, targetViewElement );\n\n\tif ( range ) {\n\t\treturn range;\n\t}\n\n\t// The easiest part is over, now we need to move to the model space.\n\n\t// Find target model element and position.\n\tconst targetModelElement = getClosestMappedModelElement( editor, targetViewElement );\n\tconst targetModelPosition = targetViewPosition ? mapper.toModelPosition( targetViewPosition ) : null;\n\n\t// There is no target position while hovering over an empty table cell.\n\t// In Safari, target position can be empty while hovering over a widget (e.g., a page-break).\n\t// Find the drop position inside the element.\n\tif ( !targetModelPosition ) {\n\t\treturn findDropTargetRangeInElement( editor, targetModelElement );\n\t}\n\n\t// Check if target position is between blocks and adjust drop position to the next object.\n\t// This is because while hovering over a root element next to a widget the target position can jump in crazy places.\n\trange = findDropTargetRangeBetweenBlocks( editor, targetModelPosition, targetModelElement );\n\n\tif ( range ) {\n\t\treturn range;\n\t}\n\n\t// Try fixing selection position.\n\t// In Firefox, the target position lands before widgets but in other browsers it tends to land after a widget.\n\trange = model.schema.getNearestSelectionRange( targetModelPosition, env.isGecko ? 'forward' : 'backward' );\n\n\tif ( range ) {\n\t\treturn range;\n\t}\n\n\t// There is no valid selection position inside the current limit element so find a closest object ancestor.\n\t// This happens if the model position lands directly in the <table> element itself (view target element was a `<td>`\n\t// so a nested editable, but view target position was directly in the `<figure>` element).\n\treturn findDropTargetRangeOnAncestorObject( editor, targetModelPosition.parent as Element );\n}\n\n/**\n * Returns fixed selection range for a given position and a target element if it is over the widget but not over its nested editable.\n */\nfunction findDropTargetRangeOnWidget( editor: Editor, targetViewElement: ViewElement ): Range | null {\n\tconst model = editor.model;\n\tconst mapper = editor.editing.mapper;\n\n\t// Quick win if the target is a widget.\n\tif ( isWidget( targetViewElement ) ) {\n\t\treturn model.createRangeOn( mapper.toModelElement( targetViewElement )! );\n\t}\n\n\t// Check if we are deeper over a widget (but not over a nested editable).\n\tif ( !targetViewElement.is( 'editableElement' ) ) {\n\t\t// Find a closest ancestor that is either a widget or an editable element...\n\t\tconst ancestor = targetViewElement.findAncestor( node => isWidget( node ) || node.is( 'editableElement' ) )!;\n\n\t\t// ...and if the widget was closer then it is a drop target.\n\t\tif ( isWidget( ancestor ) ) {\n\t\t\treturn model.createRangeOn( mapper.toModelElement( ancestor! )! );\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns fixed selection range inside a model element.\n */\nfunction findDropTargetRangeInElement( editor: Editor, targetModelElement: Element ): Range | null {\n\tconst model = editor.model;\n\tconst schema = model.schema;\n\n\tconst positionAtElementStart = model.createPositionAt( targetModelElement, 0 );\n\n\treturn schema.getNearestSelectionRange( positionAtElementStart, 'forward' );\n}\n\n/**\n * Returns fixed selection range for a given position and a target element if the drop is between blocks.\n */\nfunction findDropTargetRangeBetweenBlocks( editor: Editor, targetModelPosition: Position, targetModelElement: Element ): Range | null {\n\tconst model = editor.model;\n\n\t// Check if target is between blocks.\n\tif ( !model.schema.checkChild( targetModelElement, '$block' ) ) {\n\t\treturn null;\n\t}\n\n\t// Find position between blocks.\n\tconst positionAtElementStart = model.createPositionAt( targetModelElement, 0 );\n\n\t// Get the common part of the path (inside the target element and the target position).\n\tconst commonPath = targetModelPosition.path.slice( 0, positionAtElementStart.path.length );\n\n\t// Position between the blocks.\n\tconst betweenBlocksPosition = model.createPositionFromPath( targetModelPosition.root, commonPath );\n\tconst nodeAfter = betweenBlocksPosition.nodeAfter;\n\n\t// Adjust drop position to the next object.\n\t// This is because while hovering over a root element next to a widget the target position can jump in crazy places.\n\tif ( nodeAfter && model.schema.isObject( nodeAfter ) ) {\n\t\treturn model.createRangeOn( nodeAfter );\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns a selection range on the ancestor object.\n */\nfunction findDropTargetRangeOnAncestorObject( editor: Editor, element: Element ): Range | null {\n\tconst model = editor.model;\n\tlet currentElement: Element | null = element;\n\n\twhile ( currentElement ) {\n\t\tif ( model.schema.isObject( currentElement ) ) {\n\t\t\treturn model.createRangeOn( currentElement );\n\t\t}\n\n\t\tcurrentElement = currentElement.parent as Element | null;\n\t}\n\n\t/* istanbul ignore next -- @preserve */\n\treturn null;\n}\n\n/**\n * Returns the closest model element for the specified view element.\n */\nfunction getClosestMappedModelElement( editor: Editor, element: ViewElement ): Element {\n\tconst mapper = editor.editing.mapper;\n\tconst view = editor.editing.view;\n\n\tconst targetModelElement = mapper.toModelElement( element );\n\n\tif ( targetModelElement ) {\n\t\treturn targetModelElement;\n\t}\n\n\t// Find mapped ancestor if the target is inside not mapped element (for example inline code element).\n\tconst viewPosition = view.createPositionBefore( element );\n\tconst viewElement = mapper.findMappedViewAncestor( viewPosition );\n\n\treturn mapper.toModelElement( viewElement )!;\n}\n\n/**\n * Returns the drop effect that should be a result of dragging the content.\n * This function is handling a quirk when checking the effect in the 'drop' DOM event.\n */\nfunction getFinalDropEffect( dataTransfer: DataTransfer ): DataTransfer[ 'dropEffect' ] {\n\tif ( env.isGecko ) {\n\t\treturn dataTransfer.dropEffect;\n\t}\n\n\treturn [ 'all', 'copyMove' ].includes( dataTransfer.effectAllowed ) ? 'move' : 'copy';\n}\n\n/**\n * Returns a function wrapper that will trigger a function after a specified wait time.\n * The timeout can be canceled by calling the cancel function on the returned wrapped function.\n * @param func The function to wrap.\n * @param wait The timeout in ms.\n */\nfunction delay<T extends ( ...args: Array<any> ) => any>( func: T, wait: number ): DelayedFunc<T> {\n\tlet timer: ReturnType<typeof setTimeout>;\n\n\tfunction delayed( ...args: Parameters<T> ) {\n\t\tdelayed.cancel();\n\t\ttimer = setTimeout( () => func( ...args ), wait );\n\t}\n\n\tdelayed.cancel = () => {\n\t\tclearTimeout( timer );\n\t};\n\n\treturn delayed;\n}\n\ninterface DelayedFunc<T extends ( ...args: Array<any> ) => any> {\n\t( ...args: Parameters<T> ): void;\n\tcancel(): void;\n}\n\n/**\n * Returns a widget element that should be dragged.\n */\nfunction findDraggableWidget( target: ViewElement ): ViewElement | null {\n\t// This is directly an editable so not a widget for sure.\n\tif ( target.is( 'editableElement' ) ) {\n\t\treturn null;\n\t}\n\n\t// TODO: Let's have a isWidgetSelectionHandleDomElement() helper in ckeditor5-widget utils.\n\tif ( target.hasClass( 'ck-widget__selection-handle' ) ) {\n\t\treturn target.findAncestor( isWidget );\n\t}\n\n\t// Direct hit on a widget.\n\tif ( isWidget( target ) ) {\n\t\treturn target;\n\t}\n\n\t// Find closest ancestor that is either a widget or an editable element...\n\tconst ancestor = target.findAncestor( node => isWidget( node ) || node.is( 'editableElement' ) )!;\n\n\t// ...and if closer was the widget then enable dragging it.\n\tif ( isWidget( ancestor ) ) {\n\t\treturn ancestor;\n\t}\n\n\treturn null;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/pasteplaintext\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\nimport type { DocumentFragment, Schema, ViewDocumentKeyDownEvent } from '@ckeditor/ckeditor5-engine';\n\nimport ClipboardObserver from './clipboardobserver';\nimport ClipboardPipeline, { type ClipboardContentInsertionEvent } from './clipboardpipeline';\n\n/**\n * The plugin detects the user's intention to paste plain text.\n *\n * For example, it detects the <kbd>Ctrl/Cmd</kbd> + <kbd>Shift</kbd> + <kbd>V</kbd> keystroke.\n */\nexport default class PastePlainText extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'PastePlainText' {\n\t\treturn 'PastePlainText';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ClipboardPipeline ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\t\tconst selection = model.document.selection;\n\n\t\tlet shiftPressed = false;\n\n\t\tview.addObserver( ClipboardObserver );\n\n\t\tthis.listenTo<ViewDocumentKeyDownEvent>( viewDocument, 'keydown', ( evt, data ) => {\n\t\t\tshiftPressed = data.shiftKey;\n\t\t} );\n\n\t\teditor.plugins.get( ClipboardPipeline ).on<ClipboardContentInsertionEvent>( 'contentInsertion', ( evt, data ) => {\n\t\t\t// Plain text can be determined based on the event flag (#7799) or auto-detection (#1006). If detected,\n\t\t\t// preserve selection attributes on pasted items.\n\t\t\tif ( !shiftPressed && !isPlainTextFragment( data.content, model.schema ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\t// Formatting attributes should be preserved.\n\t\t\t\tconst textAttributes = Array.from( selection.getAttributes() )\n\t\t\t\t\t.filter( ( [ key ] ) => model.schema.getAttributeProperties( key ).isFormatting );\n\n\t\t\t\tif ( !selection.isCollapsed ) {\n\t\t\t\t\tmodel.deleteContent( selection, { doNotAutoparagraph: true } );\n\t\t\t\t}\n\n\t\t\t\t// Also preserve other attributes if they survived the content deletion (because they were not fully selected).\n\t\t\t\t// For example linkHref is not a formatting attribute but it should be preserved if pasted text was in the middle\n\t\t\t\t// of a link.\n\t\t\t\ttextAttributes.push( ...selection.getAttributes() );\n\n\t\t\t\tconst range = writer.createRangeIn( data.content );\n\n\t\t\t\tfor ( const item of range.getItems() ) {\n\t\t\t\t\tif ( item.is( '$textProxy' ) ) {\n\t\t\t\t\t\twriter.setAttributes( textAttributes, item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n}\n\n/**\n * Returns true if specified `documentFragment` represents a plain text.\n */\nfunction isPlainTextFragment( documentFragment: DocumentFragment, schema: Schema ): boolean {\n\tif ( documentFragment.childCount > 1 ) {\n\t\treturn false;\n\t}\n\n\tconst child = documentFragment.getChild( 0 )!;\n\n\tif ( schema.isObject( child ) ) {\n\t\treturn false;\n\t}\n\n\treturn Array.from( child.getAttributeKeys() ).length == 0;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module clipboard/clipboard\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\n\nimport ClipboardPipeline from './clipboardpipeline';\nimport DragDrop from './dragdrop';\nimport PastePlainText from './pasteplaintext';\n\n/**\n * The clipboard feature.\n *\n * Read more about the clipboard integration in the {@glink framework/deep-dive/clipboard clipboard deep-dive} guide.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n * * {@link module:clipboard/clipboardpipeline~ClipboardPipeline}\n * * {@link module:clipboard/dragdrop~DragDrop}\n * * {@link module:clipboard/pasteplaintext~PastePlainText}\n */\nexport default class Clipboard extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Clipboard' {\n\t\treturn 'Clipboard';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ClipboardPipeline, DragDrop, PastePlainText ] as const;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/converters\n */\n\nimport type {\n\tDowncastDispatcher,\n\tElement,\n\tUpcastDispatcher,\n\tUpcastElementEvent,\n\tViewElement,\n\tViewElementAttributes,\n\tDowncastAttributeEvent\n} from 'ckeditor5/src/engine';\nimport { first, type GetCallback } from 'ckeditor5/src/utils';\nimport type ImageUtils from '../imageutils';\n\ntype SrcsetAttributeType = null | { data: unknown; width: unknown };\n\n/**\n * Returns a function that converts the image view representation:\n *\n * ```html\n * <figure class=\"image\"><img src=\"...\" alt=\"...\"></img></figure>\n * ```\n *\n * to the model representation:\n *\n * ```html\n * <imageBlock src=\"...\" alt=\"...\"></imageBlock>\n * ```\n *\n * The entire content of the `<figure>` element except the first `<img>` is being converted as children\n * of the `<imageBlock>` model element.\n *\n * @internal\n */\nexport function upcastImageFigure( imageUtils: ImageUtils ): ( dispatcher: UpcastDispatcher ) => void {\n\tconst converter: GetCallback<UpcastElementEvent> = ( evt, data, conversionApi ) => {\n\t\t// Do not convert if this is not an \"image figure\".\n\t\tif ( !conversionApi.consumable.test( data.viewItem, { name: true, classes: 'image' } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Find an image element inside the figure element.\n\t\tconst viewImage = imageUtils.findViewImgElement( data.viewItem );\n\n\t\t// Do not convert if image element is absent or was already converted.\n\t\tif ( !viewImage || !conversionApi.consumable.test( viewImage, { name: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Consume the figure to prevent other converters from processing it again.\n\t\tconversionApi.consumable.consume( data.viewItem, { name: true, classes: 'image' } );\n\n\t\t// Convert view image to model image.\n\t\tconst conversionResult = conversionApi.convertItem( viewImage, data.modelCursor );\n\n\t\t// Get image element from conversion result.\n\t\tconst modelImage = first( conversionResult.modelRange!.getItems() ) as Element;\n\n\t\t// When image wasn't successfully converted then finish conversion.\n\t\tif ( !modelImage ) {\n\t\t\t// Revert consumed figure so other features can convert it.\n\t\t\tconversionApi.consumable.revert( data.viewItem, { name: true, classes: 'image' } );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Convert rest of the figure element's children as an image children.\n\t\tconversionApi.convertChildren( data.viewItem, modelImage );\n\n\t\tconversionApi.updateConversionResult( modelImage, data );\n\t};\n\n\treturn dispatcher => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element:figure', converter );\n\t};\n}\n\n/**\n * Returns a function that converts the image view representation:\n *\n * ```html\n * <picture><source ... /><source ... />...<img ... /></picture>\n * ```\n *\n * to the model representation as the `sources` attribute:\n *\n * ```html\n * <image[Block|Inline] ... sources=\"...\"></image[Block|Inline]>\n * ```\n *\n * @internal\n */\nexport function upcastPicture( imageUtils: ImageUtils ): ( dispatcher: UpcastDispatcher ) => void {\n\tconst sourceAttributeNames = [ 'srcset', 'media', 'type', 'sizes' ];\n\n\tconst converter: GetCallback<UpcastElementEvent> = ( evt, data, conversionApi ) => {\n\t\tconst pictureViewElement = data.viewItem;\n\n\t\t// Do not convert <picture> if already consumed.\n\t\tif ( !conversionApi.consumable.test( pictureViewElement, { name: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst sources = new Map<ViewElement, Record<string, string | undefined>>();\n\n\t\t// Collect all <source /> elements attribute values.\n\t\tfor ( const childSourceElement of pictureViewElement.getChildren() ) {\n\t\t\tif ( childSourceElement.is( 'element', 'source' ) ) {\n\t\t\t\tconst attributes: Record<string, string | undefined> = {};\n\n\t\t\t\tfor ( const name of sourceAttributeNames ) {\n\t\t\t\t\tif ( childSourceElement.hasAttribute( name ) ) {\n\t\t\t\t\t\t// Don't collect <source /> attribute if already consumed somewhere else.\n\t\t\t\t\t\tif ( conversionApi.consumable.test( childSourceElement, { attributes: name } ) ) {\n\t\t\t\t\t\t\tattributes[ name ] = childSourceElement.getAttribute( name );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif ( Object.keys( attributes ).length ) {\n\t\t\t\t\tsources.set( childSourceElement, attributes );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst imgViewElement = imageUtils.findViewImgElement( pictureViewElement );\n\n\t\t// Don't convert when a picture has no <img/> inside (it is broken).\n\t\tif ( !imgViewElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet modelImage = data.modelCursor.parent;\n\n\t\t// - In case of an inline image (cursor parent in a <paragraph>), the <img/> must be converted right away\n\t\t// because no converter handled it yet and otherwise there would be no model element to set the sources attribute on.\n\t\t// - In case of a block image, the <figure class=\"image\"> converter (in ImageBlockEditing) converts the\n\t\t// <img/> right away on its own and the modelCursor is already inside an imageBlock and there's nothing special\n\t\t// to do here.\n\t\tif ( !modelImage.is( 'element', 'imageBlock' ) ) {\n\t\t\tconst conversionResult = conversionApi.convertItem( imgViewElement, data.modelCursor );\n\n\t\t\t// Set image range as conversion result.\n\t\t\tdata.modelRange = conversionResult.modelRange;\n\n\t\t\t// Continue conversion where image conversion ends.\n\t\t\tdata.modelCursor = conversionResult.modelCursor;\n\n\t\t\tmodelImage = first( conversionResult.modelRange!.getItems() ) as Element;\n\t\t}\n\n\t\tconversionApi.consumable.consume( pictureViewElement, { name: true } );\n\n\t\t// Consume only these <source/> attributes that were actually collected and will be passed on\n\t\t// to the image model element.\n\t\tfor ( const [ sourceElement, attributes ] of sources ) {\n\t\t\tconversionApi.consumable.consume( sourceElement, { attributes: Object.keys( attributes ) } );\n\t\t}\n\n\t\tif ( sources.size ) {\n\t\t\tconversionApi.writer.setAttribute( 'sources', Array.from( sources.values() ), modelImage );\n\t\t}\n\n\t\t// Convert rest of the <picture> children as an image children. Other converters may want to consume them.\n\t\tconversionApi.convertChildren( pictureViewElement, modelImage );\n\t};\n\n\treturn dispatcher => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element:picture', converter );\n\t};\n}\n\n/**\n * Converter used to convert the `srcset` model image attribute to the `srcset`, `sizes` and `width` attributes in the view.\n *\n * @internal\n * @param imageType The type of the image.\n */\nexport function downcastSrcsetAttribute(\n\timageUtils: ImageUtils,\n\timageType: 'imageBlock' | 'imageInline'\n): ( dispatcher: DowncastDispatcher ) => void {\n\tconst converter: GetCallback<DowncastAttributeEvent<Element>> = ( evt, data, conversionApi\t) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst writer = conversionApi.writer;\n\t\tconst element = conversionApi.mapper.toViewElement( data.item )!;\n\t\tconst img = imageUtils.findViewImgElement( element )!;\n\n\t\tif ( data.attributeNewValue === null ) {\n\t\t\tconst srcset = data.attributeOldValue as SrcsetAttributeType;\n\n\t\t\tif ( srcset && srcset.data ) {\n\t\t\t\twriter.removeAttribute( 'srcset', img );\n\t\t\t\twriter.removeAttribute( 'sizes', img );\n\n\t\t\t\tif ( srcset.width ) {\n\t\t\t\t\twriter.removeAttribute( 'width', img );\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\tconst srcset = data.attributeNewValue as SrcsetAttributeType;\n\n\t\t\tif ( srcset && srcset.data ) {\n\t\t\t\twriter.setAttribute( 'srcset', srcset.data, img );\n\t\t\t\t// Always outputting `100vw`. See https://github.com/ckeditor/ckeditor5-image/issues/2.\n\t\t\t\twriter.setAttribute( 'sizes', '100vw', img );\n\n\t\t\t\tif ( srcset.width ) {\n\t\t\t\t\twriter.setAttribute( 'width', srcset.width, img );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n\n\treturn dispatcher => {\n\t\tdispatcher.on<DowncastAttributeEvent<Element>>( `attribute:srcset:${ imageType }`, converter );\n\t};\n}\n\n/**\n * Converts the `source` model attribute to the `<picture><source /><source />...<img /></picture>`\n * view structure.\n *\n * @internal\n */\nexport function downcastSourcesAttribute( imageUtils: ImageUtils ): ( dispatcher: DowncastDispatcher ) => void {\n\tconst converter: GetCallback<DowncastAttributeEvent<Element>> = ( evt, data, conversionApi\t) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst element = conversionApi.mapper.toViewElement( data.item )!;\n\t\tconst imgElement = imageUtils.findViewImgElement( element )!;\n\t\tconst attributeNewValue = data.attributeNewValue as null | Array<ViewElementAttributes>;\n\n\t\tif ( attributeNewValue && attributeNewValue.length ) {\n\t\t\t// Make sure <picture> does not break attribute elements, for instance <a> in linked images.\n\t\t\tconst pictureElement = viewWriter.createContainerElement( 'picture', null,\n\t\t\t\tattributeNewValue.map( sourceAttributes => {\n\t\t\t\t\treturn viewWriter.createEmptyElement( 'source', sourceAttributes );\n\t\t\t\t} )\n\t\t\t);\n\n\t\t\t// Collect all wrapping attribute elements.\n\t\t\tconst attributeElements = [];\n\t\t\tlet viewElement = imgElement.parent;\n\n\t\t\twhile ( viewElement && viewElement.is( 'attributeElement' ) ) {\n\t\t\t\tconst parentElement = viewElement.parent;\n\n\t\t\t\tviewWriter.unwrap( viewWriter.createRangeOn( imgElement ), viewElement );\n\n\t\t\t\tattributeElements.unshift( viewElement );\n\t\t\t\tviewElement = parentElement;\n\t\t\t}\n\n\t\t\t// Insert the picture and move img into it.\n\t\t\tviewWriter.insert( viewWriter.createPositionBefore( imgElement ), pictureElement );\n\t\t\tviewWriter.move( viewWriter.createRangeOn( imgElement ), viewWriter.createPositionAt( pictureElement, 'end' ) );\n\n\t\t\t// Apply collected attribute elements over the new picture element.\n\t\t\tfor ( const attributeElement of attributeElements ) {\n\t\t\t\tviewWriter.wrap( viewWriter.createRangeOn( pictureElement ), attributeElement );\n\t\t\t}\n\t\t}\n\t\t// Both setting \"sources\" to an empty array and removing the attribute should unwrap the <img />.\n\t\t// Unwrap once if the latter followed the former, though.\n\t\telse if ( imgElement.parent!.is( 'element', 'picture' ) ) {\n\t\t\tconst pictureElement = imgElement.parent;\n\n\t\t\tviewWriter.move( viewWriter.createRangeOn( imgElement ), viewWriter.createPositionBefore( pictureElement ) );\n\t\t\tviewWriter.remove( pictureElement );\n\t\t}\n\t};\n\n\treturn dispatcher => {\n\t\tdispatcher.on<DowncastAttributeEvent<Element>>( 'attribute:sources:imageBlock', converter );\n\t\tdispatcher.on<DowncastAttributeEvent<Element>>( 'attribute:sources:imageInline', converter );\n\t};\n}\n\n/**\n * Converter used to convert a given image attribute from the model to the view.\n *\n * @internal\n * @param imageType The type of the image.\n * @param attributeKey The name of the attribute to convert.\n */\nexport function downcastImageAttribute(\n\timageUtils: ImageUtils,\n\timageType: 'imageBlock' | 'imageInline',\n\tattributeKey: string\n): ( dispatcher: DowncastDispatcher ) => void {\n\tconst converter: GetCallback<DowncastAttributeEvent<Element>> = ( evt, data, conversionApi ) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst element = conversionApi.mapper.toViewElement( data.item )!;\n\t\tconst img = imageUtils.findViewImgElement( element )!;\n\n\t\tviewWriter.setAttribute( data.attributeKey, data.attributeNewValue || '', img );\n\t};\n\n\treturn dispatcher => {\n\t\tdispatcher.on<DowncastAttributeEvent<Element>>( `attribute:${ attributeKey }:${ imageType }`, converter );\n\t};\n}\n\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageloadobserver\n */\n\nimport { Observer } from 'ckeditor5/src/engine';\n\n/**\n * Observes all new images added to the {@link module:engine/view/document~Document},\n * fires {@link module:engine/view/document~Document#event:imageLoaded} and\n * {@link module:engine/view/document~Document#event:layoutChanged} event every time when the new image\n * has been loaded.\n *\n * **Note:** This event is not fired for images that has been added to the document and rendered as `complete` (already loaded).\n */\nexport default class ImageLoadObserver extends Observer {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic observe( domRoot: HTMLElement ): void {\n\t\tthis.listenTo( domRoot, 'load', ( event, domEvent ) => {\n\t\t\tconst domElement = domEvent.target as HTMLElement;\n\n\t\t\tif ( this.checkShouldIgnoreEventFromTarget( domElement ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( domElement.tagName == 'IMG' ) {\n\t\t\t\tthis._fireEvents( domEvent );\n\t\t\t}\n\t\t\t// Use capture phase for better performance (#4504).\n\t\t}, { useCapture: true } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override stopObserving( domRoot: HTMLElement ): void {\n\t\tthis.stopListening( domRoot );\n\t}\n\n\t/**\n\t * Fires {@link module:engine/view/document~Document#event:layoutChanged} and\n\t * {@link module:engine/view/document~Document#event:imageLoaded}\n\t * if observer {@link #isEnabled is enabled}.\n\t *\n\t * @param domEvent The DOM event.\n\t */\n\tprivate _fireEvents( domEvent: Event ): void {\n\t\tif ( this.isEnabled ) {\n\t\t\tthis.document.fire( 'layoutChanged' );\n\t\t\tthis.document.fire<ImageLoadedEvent>( 'imageLoaded', domEvent );\n\t\t}\n\t}\n}\n\n/**\n * Fired when an <img/> DOM element has been loaded in the DOM root.\n *\n * Introduced by {@link module:image/image/imageloadobserver~ImageLoadObserver}.\n *\n * @see module:image/image/imageloadobserver~ImageLoadObserver\n *\n * @eventName module:engine/view/document~Document#imageLoaded\n * @param data Event data.\n */\nexport type ImageLoadedEvent = {\n\tname: 'imageLoaded';\n\targs: [ Event ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/insertimagecommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport { logWarning, toArray, type ArrayOrItem } from 'ckeditor5/src/utils';\nimport type ImageUtils from '../imageutils';\n\n/**\n * Insert image command.\n *\n * The command is registered by the {@link module:image/image/imageediting~ImageEditing} plugin as `insertImage`\n * and it is also available via aliased `imageInsert` name.\n *\n * In order to insert an image at the current selection position\n * (according to the {@link module:widget/utils~findOptimalInsertionRange} algorithm),\n * execute the command and specify the image source:\n *\n * ```ts\n * editor.execute( 'insertImage', { source: 'http://url.to.the/image' } );\n * ```\n *\n * It is also possible to insert multiple images at once:\n *\n * ```ts\n * editor.execute( 'insertImage', {\n * \tsource:  [\n * \t\t'path/to/image.jpg',\n * \t\t'path/to/other-image.jpg'\n * \t]\n * } );\n * ```\n *\n * If you want to take the full control over the process, you can specify individual model attributes:\n *\n * ```ts\n * editor.execute( 'insertImage', {\n * \tsource:  [\n * \t\t{ src: 'path/to/image.jpg', alt: 'First alt text' },\n * \t\t{ src: 'path/to/other-image.jpg', alt: 'Second alt text', customAttribute: 'My attribute value' }\n * \t]\n * } );\n * ```\n */\nexport default class InsertImageCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tconst configImageInsertType = editor.config.get( 'image.insert.type' );\n\n\t\tif ( !editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\tif ( configImageInsertType === 'block' ) {\n\t\t\t\t/**\n\t\t\t\t * The {@link module:image/imageblock~ImageBlock} plugin must be enabled to allow inserting block images. See\n\t\t\t\t * {@link module:image/imageconfig~ImageInsertConfig#type} to learn more.\n\t\t\t\t *\n\t\t\t\t * @error image-block-plugin-required\n\t\t\t\t */\n\t\t\t\tlogWarning( 'image-block-plugin-required' );\n\t\t\t}\n\t\t}\n\n\t\tif ( !editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\tif ( configImageInsertType === 'inline' ) {\n\t\t\t\t/**\n\t\t\t\t * The {@link module:image/imageinline~ImageInline} plugin must be enabled to allow inserting inline images. See\n\t\t\t\t * {@link module:image/imageconfig~ImageInsertConfig#type} to learn more.\n\t\t\t\t *\n\t\t\t\t * @error image-inline-plugin-required\n\t\t\t\t */\n\t\t\t\tlogWarning( 'image-inline-plugin-required' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst imageUtils: ImageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\tthis.isEnabled = imageUtils.isImageAllowed();\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options Options for the executed command.\n\t * @param options.source The image source or an array of image sources to insert.\n\t * See the documentation of the command to learn more about accepted formats.\n\t */\n\tpublic override execute( options: { source: ArrayOrItem<string | Record<string, unknown>> } ): void {\n\t\tconst sourceDefinitions = toArray<string | Record<string, unknown>>( options.source );\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst imageUtils: ImageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\t// In case of multiple images, each image (starting from the 2nd) will be inserted at a position that\n\t\t// follows the previous one. That will move the selection and, to stay on the safe side and make sure\n\t\t// all images inherit the same selection attributes, they are collected beforehand.\n\t\t//\n\t\t// Applying these attributes ensures, for instance, that inserting an (inline) image into a link does\n\t\t// not split that link but preserves its continuity.\n\t\t//\n\t\t// Note: Selection attributes that do not make sense for images will be filtered out by insertImage() anyway.\n\t\tconst selectionAttributes = Object.fromEntries( selection.getAttributes() );\n\n\t\tsourceDefinitions.forEach( ( sourceDefinition, index ) => {\n\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\tif ( typeof sourceDefinition === 'string' ) {\n\t\t\t\tsourceDefinition = { src: sourceDefinition };\n\t\t\t}\n\n\t\t\t// Inserting of an inline image replace the selected element and make a selection on the inserted image.\n\t\t\t// Therefore inserting multiple inline images requires creating position after each element.\n\t\t\tif ( index && selectedElement && imageUtils.isImage( selectedElement ) ) {\n\t\t\t\tconst position = this.editor.model.createPositionAfter( selectedElement );\n\n\t\t\t\timageUtils.insertImage( { ...sourceDefinition, ...selectionAttributes }, position );\n\t\t\t} else {\n\t\t\t\timageUtils.insertImage( { ...sourceDefinition, ...selectionAttributes } );\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport type ImageUtils from '../imageutils';\n\n/**\n * @module image/image/replaceimagesourcecommand\n */\n\n/**\n * Replace image source command.\n *\n * Changes image source to the one provided. Can be executed as follows:\n *\n * ```ts\n * editor.execute( 'replaceImageSource', { source: 'http://url.to.the/image' } );\n * ```\n */\nexport default class ReplaceImageSourceCommand extends Command {\n\tdeclare public value: string | null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = this.editor.model.document.selection.getSelectedElement()!;\n\n\t\tthis.isEnabled = imageUtils.isImage( element );\n\t\tthis.value = this.isEnabled ? element.getAttribute( 'src' ) as string : null;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options Options for the executed command.\n\t * @param options.source The image source to replace.\n\t */\n\tpublic override execute( options: { source: string } ): void {\n\t\tconst image = this.editor.model.document.selection.getSelectedElement()!;\n\t\tthis.editor.model.change( writer => {\n\t\t\twriter.setAttribute( 'src', options.source, image );\n\t\t\twriter.removeAttribute( 'srcset', image );\n\t\t\twriter.removeAttribute( 'sizes', image );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport type { ViewElement } from 'ckeditor5/src/engine';\nimport ImageLoadObserver from './imageloadobserver';\nimport InsertImageCommand from './insertimagecommand';\nimport ReplaceImageSourceCommand from './replaceimagesourcecommand';\nimport ImageUtils from '../imageutils';\n\n/**\n * The image engine plugin. This module loads common code shared between\n * {@link module:image/image/imageinlineediting~ImageInlineEditing} and\n * {@link module:image/image/imageblockediting~ImageBlockEditing} plugins.\n *\n * This plugin registers the {@link module:image/image/insertimagecommand~InsertImageCommand 'insertImage'} command.\n */\nexport default class ImageEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageEditing' {\n\t\treturn 'ImageEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\n\t\t// See https://github.com/ckeditor/ckeditor5-image/issues/142.\n\t\teditor.editing.view.addObserver( ImageLoadObserver );\n\n\t\tconversion.for( 'upcast' )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'img',\n\t\t\t\t\tkey: 'alt'\n\t\t\t\t},\n\t\t\t\tmodel: 'alt'\n\t\t\t} )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'img',\n\t\t\t\t\tkey: 'srcset'\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: 'srcset',\n\t\t\t\t\tvalue: ( viewImage: ViewElement ) => {\n\t\t\t\t\t\tconst value: Record<string, string> = {\n\t\t\t\t\t\t\tdata: viewImage.getAttribute( 'srcset' )!\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tif ( viewImage.hasAttribute( 'width' ) ) {\n\t\t\t\t\t\t\tvalue.width = viewImage.getAttribute( 'width' )!;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\treturn value;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\tconst insertImageCommand = new InsertImageCommand( editor );\n\t\tconst replaceImageSourceCommand = new ReplaceImageSourceCommand( editor );\n\n\t\teditor.commands.add( 'insertImage', insertImageCommand );\n\t\teditor.commands.add( 'replaceImageSource', replaceImageSourceCommand );\n\n\t\t// `imageInsert` is an alias for backward compatibility.\n\t\teditor.commands.add( 'imageInsert', insertImageCommand );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imagetypecommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type ImageUtils from '../imageutils';\n\n/**\n * The image type command. It changes the type of a selected image, depending on the configuration.\n */\nexport default class ImageTypeCommand extends Command {\n\t/**\n\t * Model element name the command converts to.\n\t */\n\tprivate readonly _modelElementName: 'imageBlock' | 'imageInline';\n\n\t/**\n\t * @inheritDoc\n\t *\n\t * @param modelElementName Model element name the command converts to.\n\t */\n\tconstructor( editor: Editor, modelElementName: 'imageBlock' | 'imageInline' ) {\n\t\tsuper( editor );\n\n\t\tthis._modelElementName = modelElementName;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( this.editor.model.document.selection );\n\n\t\tif ( this._modelElementName === 'imageBlock' ) {\n\t\t\tthis.isEnabled = imageUtils.isInlineImage( element );\n\t\t} else {\n\t\t\tthis.isEnabled = imageUtils.isBlockImage( element );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command and changes the type of a selected image.\n\t *\n\t * @fires execute\n\t * @returns An object containing references to old and new model image elements\n\t * (for before and after the change) so external integrations can hook into the decorated\n\t * `execute` event and handle this change. `null` if the type change failed.\n\t */\n\tpublic override execute(): { oldElement: Element; newElement: Element } | null {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst oldElement = imageUtils.getClosestSelectedImageElement( model.document.selection )!;\n\t\tconst attributes = Object.fromEntries( oldElement.getAttributes() );\n\n\t\t// Don't change image type if \"src\" is missing (a broken image), unless there's \"uploadId\" set.\n\t\t// This state may happen during image upload (before it finishes) and it should be possible to change type\n\t\t// of the image in the meantime.\n\t\tif ( !attributes.src && !attributes.uploadId ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn model.change( writer => {\n\t\t\t// Get all markers that contain the old image element.\n\t\t\tconst markers = Array.from( model.markers )\n\t\t\t\t.filter( marker => marker.getRange().containsItem( oldElement ) );\n\n\t\t\tconst newElement = imageUtils.insertImage( attributes, model.createSelection( oldElement, 'on' ), this._modelElementName );\n\n\t\t\tif ( !newElement ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tconst newElementRange = writer.createRangeOn( newElement );\n\n\t\t\t// Expand the previously intersecting markers' ranges to include the new image element.\n\t\t\tfor ( const marker of markers ) {\n\t\t\t\tconst markerRange = marker.getRange();\n\n\t\t\t\t// Join the survived part of the old marker range with the new element range\n\t\t\t\t// (loosely because there could be some new paragraph or the existing one might got split).\n\t\t\t\tconst range = markerRange.root.rootName != '$graveyard' ?\n\t\t\t\t\tmarkerRange.getJoined( newElementRange, true )! : newElementRange;\n\n\t\t\t\twriter.updateMarker( marker, { range } );\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\toldElement,\n\t\t\t\tnewElement\n\t\t\t};\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageblockediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ClipboardPipeline, type ClipboardInputTransformationEvent } from 'ckeditor5/src/clipboard';\nimport { UpcastWriter, type ViewElement } from 'ckeditor5/src/engine';\n\nimport {\n\tdowncastImageAttribute,\n\tdowncastSrcsetAttribute,\n\tupcastImageFigure\n} from './converters';\n\nimport ImageEditing from './imageediting';\nimport ImageTypeCommand from './imagetypecommand';\nimport ImageUtils from '../imageutils';\nimport {\n\tgetImgViewElementMatcher,\n\tcreateBlockImageViewElement,\n\tdetermineImageTypeForInsertionAtSelection\n} from '../image/utils';\n\n/**\n * The image block plugin.\n *\n * It registers:\n *\n * * `<imageBlock>` as a block element in the document schema, and allows `alt`, `src` and `srcset` attributes.\n * * converters for editing and data pipelines.,\n * * {@link module:image/image/imagetypecommand~ImageTypeCommand `'imageTypeBlock'`} command that converts inline images into\n * block images.\n */\nexport default class ImageBlockEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageEditing, ImageUtils, ClipboardPipeline ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageBlockEditing' {\n\t\treturn 'ImageBlockEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Converters 'alt' and 'srcset' are added in 'ImageEditing' plugin.\n\t\tschema.register( 'imageBlock', {\n\t\t\tinheritAllFrom: '$blockObject',\n\t\t\tallowAttributes: [ 'alt', 'src', 'srcset' ]\n\t\t} );\n\n\t\tthis._setupConversion();\n\n\t\tif ( editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\teditor.commands.add( 'imageTypeBlock', new ImageTypeCommand( this.editor, 'imageBlock' ) );\n\n\t\t\tthis._setupClipboardIntegration();\n\t\t}\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting\n\t * block images (block image widgets) and their attributes.\n\t */\n\tprivate _setupConversion(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst conversion = editor.conversion;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tconversion.for( 'dataDowncast' )\n\t\t\t.elementToStructure( {\n\t\t\t\tmodel: 'imageBlock',\n\t\t\t\tview: ( modelElement, { writer } ) => createBlockImageViewElement( writer )\n\t\t\t} );\n\n\t\tconversion.for( 'editingDowncast' )\n\t\t\t.elementToStructure( {\n\t\t\t\tmodel: 'imageBlock',\n\t\t\t\tview: ( modelElement, { writer } ) => imageUtils.toImageWidget(\n\t\t\t\t\tcreateBlockImageViewElement( writer ), writer, t( 'image widget' )\n\t\t\t\t)\n\t\t\t} );\n\n\t\tconversion.for( 'downcast' )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageBlock', 'src' ) )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageBlock', 'alt' ) )\n\t\t\t.add( downcastSrcsetAttribute( imageUtils, 'imageBlock' ) );\n\n\t\t// More image related upcasts are in 'ImageEditing' plugin.\n\t\tconversion.for( 'upcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tview: getImgViewElementMatcher( editor, 'imageBlock' ),\n\t\t\t\tmodel: ( viewImage, { writer } ) => writer.createElement(\n\t\t\t\t\t'imageBlock',\n\t\t\t\t\tviewImage.hasAttribute( 'src' ) ? { src: viewImage.getAttribute( 'src' ) } : undefined\n\t\t\t\t)\n\t\t\t} )\n\t\t\t.add( upcastImageFigure( imageUtils ) );\n\t}\n\n\t/**\n\t * Integrates the plugin with the clipboard pipeline.\n\t *\n\t * Idea is that the feature should recognize the user's intent when an **inline** image is\n\t * pasted or dropped. If such an image is pasted/dropped:\n\t *\n\t * * into an empty block (e.g. an empty paragraph),\n\t * * on another object (e.g. some block widget).\n\t *\n\t * it gets converted into a block image on the fly. We assume this is the user's intent\n\t * if they decided to put their image there.\n\t *\n\t * See the `ImageInlineEditing` for the similar integration that works in the opposite direction.\n\t */\n\tprivate _setupClipboardIntegration(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst editingView = editor.editing.view;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst clipboardPipeline: ClipboardPipeline = editor.plugins.get( 'ClipboardPipeline' );\n\n\t\tthis.listenTo<ClipboardInputTransformationEvent>(\n\t\t\tclipboardPipeline,\n\t\t\t'inputTransformation',\n\t\t\t( evt, data ) => {\n\t\t\t\tconst docFragmentChildren = Array.from( data.content.getChildren() as IterableIterator<ViewElement> );\n\t\t\t\tlet modelRange;\n\n\t\t\t\t// Make sure only <img> elements are dropped or pasted. Otherwise, if there some other HTML\n\t\t\t\t// mixed up, this should be handled as a regular paste.\n\t\t\t\tif ( !docFragmentChildren.every( imageUtils.isInlineImageView ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// When drag and dropping, data.targetRanges specifies where to drop because\n\t\t\t\t// this is usually a different place than the current model selection (the user\n\t\t\t\t// uses a drop marker to specify the drop location).\n\t\t\t\tif ( data.targetRanges ) {\n\t\t\t\t\tmodelRange = editor.editing.mapper.toModelRange( data.targetRanges[ 0 ] );\n\t\t\t\t}\n\t\t\t\t// Pasting, however, always occurs at the current model selection.\n\t\t\t\telse {\n\t\t\t\t\tmodelRange = model.document.selection.getFirstRange();\n\t\t\t\t}\n\n\t\t\t\tconst selection = model.createSelection( modelRange );\n\n\t\t\t\t// Convert inline images into block images only when the currently selected block is empty\n\t\t\t\t// (e.g. an empty paragraph) or some object is selected (to replace it).\n\t\t\t\tif ( determineImageTypeForInsertionAtSelection( model.schema, selection ) === 'imageBlock' ) {\n\t\t\t\t\tconst writer = new UpcastWriter( editingView.document );\n\n\t\t\t\t\t// Wrap <img ... /> -> <figure class=\"image\"><img .../></figure>\n\t\t\t\t\tconst blockViewImages = docFragmentChildren.map(\n\t\t\t\t\t\tinlineViewImage => writer.createElement( 'figure', { class: 'image' }, inlineViewImage )\n\t\t\t\t\t);\n\n\t\t\t\t\tdata.content = writer.createDocumentFragment( blockViewImages );\n\t\t\t\t}\n\t\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./image.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageblock\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\n\nimport ImageTextAlternative from './imagetextalternative';\nimport ImageBlockEditing from './image/imageblockediting';\n\nimport '../theme/image.css';\n\n/**\n * The image block plugin.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * {@link module:image/image/imageblockediting~ImageBlockEditing},\n * * {@link module:image/imagetextalternative~ImageTextAlternative}.\n *\n * Usually, it is used in conjunction with other plugins from this package. See the {@glink api/image package page}\n * for more information.\n */\nexport default class ImageBlock extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageBlockEditing, Widget, ImageTextAlternative ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageBlock' {\n\t\treturn 'ImageBlock';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image/imageinlineediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ClipboardPipeline, type ClipboardInputTransformationEvent } from 'ckeditor5/src/clipboard';\nimport { UpcastWriter, type ViewElement } from 'ckeditor5/src/engine';\n\nimport {\n\tdowncastImageAttribute,\n\tdowncastSrcsetAttribute\n} from './converters';\n\nimport ImageEditing from './imageediting';\nimport ImageTypeCommand from './imagetypecommand';\nimport ImageUtils from '../imageutils';\nimport {\n\tgetImgViewElementMatcher,\n\tcreateInlineImageViewElement,\n\tdetermineImageTypeForInsertionAtSelection\n} from '../image/utils';\n\n/**\n * The image inline plugin.\n *\n * It registers:\n *\n * * `<imageInline>` as an inline element in the document schema, and allows `alt`, `src` and `srcset` attributes.\n * * converters for editing and data pipelines.\n * * {@link module:image/image/imagetypecommand~ImageTypeCommand `'imageTypeInline'`} command that converts block images into\n * inline images.\n */\nexport default class ImageInlineEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageEditing, ImageUtils, ClipboardPipeline ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageInlineEditing' {\n\t\treturn 'ImageInlineEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Converters 'alt' and 'srcset' are added in 'ImageEditing' plugin.\n\t\tschema.register( 'imageInline', {\n\t\t\tinheritAllFrom: '$inlineObject',\n\t\t\tallowAttributes: [ 'alt', 'src', 'srcset' ]\n\t\t} );\n\n\t\t// Disallow inline images in captions (for now). This is the best spot to do that because\n\t\t// independent packages can introduce captions (ImageCaption, TableCaption, etc.) so better this\n\t\t// be future-proof.\n\t\tschema.addChildCheck( ( context, childDefinition ) => {\n\t\t\tif ( context.endsWith( 'caption' ) && childDefinition.name === 'imageInline' ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\tthis._setupConversion();\n\n\t\tif ( editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\teditor.commands.add( 'imageTypeInline', new ImageTypeCommand( this.editor, 'imageInline' ) );\n\n\t\t\tthis._setupClipboardIntegration();\n\t\t}\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting\n\t * inline images (inline image widgets) and their attributes.\n\t */\n\tprivate _setupConversion(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst conversion = editor.conversion;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tconversion.for( 'dataDowncast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'imageInline',\n\t\t\t\tview: ( modelElement, { writer } ) => writer.createEmptyElement( 'img' )\n\t\t\t} );\n\n\t\tconversion.for( 'editingDowncast' )\n\t\t\t.elementToStructure( {\n\t\t\t\tmodel: 'imageInline',\n\t\t\t\tview: ( modelElement, { writer } ) => imageUtils.toImageWidget(\n\t\t\t\t\tcreateInlineImageViewElement( writer ), writer, t( 'image widget' )\n\t\t\t\t)\n\t\t\t} );\n\n\t\tconversion.for( 'downcast' )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageInline', 'src' ) )\n\t\t\t.add( downcastImageAttribute( imageUtils, 'imageInline', 'alt' ) )\n\t\t\t.add( downcastSrcsetAttribute( imageUtils, 'imageInline' ) );\n\n\t\t// More image related upcasts are in 'ImageEditing' plugin.\n\t\tconversion.for( 'upcast' )\n\t\t\t.elementToElement( {\n\t\t\t\tview: getImgViewElementMatcher( editor, 'imageInline' ),\n\t\t\t\tmodel: ( viewImage, { writer } ) => writer.createElement(\n\t\t\t\t\t'imageInline',\n\t\t\t\t\tviewImage.hasAttribute( 'src' ) ? { src: viewImage.getAttribute( 'src' ) } : undefined\n\t\t\t\t)\n\t\t\t} );\n\t}\n\n\t/**\n\t * Integrates the plugin with the clipboard pipeline.\n\t *\n\t * Idea is that the feature should recognize the user's intent when an **block** image is\n\t * pasted or dropped. If such an image is pasted/dropped into a non-empty block\n\t * (e.g. a paragraph with some text) it gets converted into an inline image on the fly.\n\t *\n\t * We assume this is the user's intent if they decided to put their image there.\n\t *\n\t * **Note**: If a block image has a caption, it will not be converted to an inline image\n\t * to avoid the confusion. Captions are added on purpose and they should never be lost\n\t * in the clipboard pipeline.\n\t *\n\t * See the `ImageBlockEditing` for the similar integration that works in the opposite direction.\n\t */\n\tprivate _setupClipboardIntegration(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst editingView = editor.editing.view;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst clipboardPipeline: ClipboardPipeline = editor.plugins.get( 'ClipboardPipeline' );\n\n\t\tthis.listenTo<ClipboardInputTransformationEvent>(\n\t\t\tclipboardPipeline,\n\t\t\t'inputTransformation',\n\t\t\t( evt, data ) => {\n\t\t\t\tconst docFragmentChildren = Array.from( data.content.getChildren() as IterableIterator<ViewElement> );\n\t\t\t\tlet modelRange;\n\n\t\t\t\t// Make sure only <figure class=\"image\"></figure> elements are dropped or pasted. Otherwise, if there some other HTML\n\t\t\t\t// mixed up, this should be handled as a regular paste.\n\t\t\t\tif ( !docFragmentChildren.every( imageUtils.isBlockImageView ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// When drag and dropping, data.targetRanges specifies where to drop because\n\t\t\t\t// this is usually a different place than the current model selection (the user\n\t\t\t\t// uses a drop marker to specify the drop location).\n\t\t\t\tif ( data.targetRanges ) {\n\t\t\t\t\tmodelRange = editor.editing.mapper.toModelRange( data.targetRanges[ 0 ] );\n\t\t\t\t}\n\t\t\t\t// Pasting, however, always occurs at the current model selection.\n\t\t\t\telse {\n\t\t\t\t\tmodelRange = model.document.selection.getFirstRange();\n\t\t\t\t}\n\n\t\t\t\tconst selection = model.createSelection( modelRange );\n\n\t\t\t\t// Convert block images into inline images only when pasting or dropping into non-empty blocks\n\t\t\t\t// and when the block is not an object (e.g. pasting to replace another widget).\n\t\t\t\tif ( determineImageTypeForInsertionAtSelection( model.schema, selection ) === 'imageInline' ) {\n\t\t\t\t\tconst writer = new UpcastWriter( editingView.document );\n\n\t\t\t\t\t// Unwrap <figure class=\"image\"><img .../></figure> -> <img ... />\n\t\t\t\t\t// but <figure class=\"image\"><img .../><figcaption>...</figcaption></figure> -> stays the same\n\t\t\t\t\tconst inlineViewImages = docFragmentChildren.map( blockViewImage => {\n\t\t\t\t\t// If there's just one child, it can be either <img /> or <a><img></a>.\n\t\t\t\t\t// If there are other children than <img>, this means that the block image\n\t\t\t\t\t// has a caption or some other features and this kind of image should be\n\t\t\t\t\t// pasted/dropped without modifications.\n\t\t\t\t\t\tif ( blockViewImage.childCount === 1 ) {\n\t\t\t\t\t\t// Pass the attributes which are present only in the <figure> to the <img>\n\t\t\t\t\t\t// (e.g. the style=\"width:10%\" attribute applied by the ImageResize plugin).\n\t\t\t\t\t\t\tArray.from( blockViewImage.getAttributes() )\n\t\t\t\t\t\t\t\t.forEach( attribute => writer.setAttribute(\n\t\t\t\t\t\t\t\t\t...attribute,\n\t\t\t\t\t\t\t\t\timageUtils.findViewImgElement( blockViewImage )!\n\t\t\t\t\t\t\t\t) );\n\n\t\t\t\t\t\t\treturn blockViewImage.getChild( 0 )!;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn blockViewImage;\n\t\t\t\t\t\t}\n\t\t\t\t\t} );\n\n\t\t\t\t\tdata.content = writer.createDocumentFragment( inlineViewImages );\n\t\t\t\t}\n\t\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageinline\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\n\nimport ImageTextAlternative from './imagetextalternative';\nimport ImageInlineEditing from './image/imageinlineediting';\n\nimport '../theme/image.css';\n\n/**\n * The image inline plugin.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * {@link module:image/image/imageinlineediting~ImageInlineEditing},\n * * {@link module:image/imagetextalternative~ImageTextAlternative}.\n *\n * Usually, it is used in conjunction with other plugins from this package. See the {@glink api/image package page}\n * for more information.\n */\nexport default class ImageInline extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageInlineEditing, Widget, ImageTextAlternative ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageInline' {\n\t\treturn 'ImageInline';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption/toggleimagecaptioncommand\n */\n\nimport type { Element, Writer } from 'ckeditor5/src/engine';\nimport { Command } from 'ckeditor5/src/core';\n\nimport ImageBlockEditing from '../image/imageblockediting';\nimport type ImageCaptionUtils from './imagecaptionutils';\nimport type ImageUtils from '../imageutils';\nimport type ImageCaptionEditing from './imagecaptionediting';\n\n/**\n * The toggle image caption command.\n *\n * This command is registered by {@link module:image/imagecaption/imagecaptionediting~ImageCaptionEditing} as the\n * `'toggleImageCaption'` editor command.\n *\n * Executing this command:\n *\n * * either adds or removes the image caption of a selected image (depending on whether the caption is present or not),\n * * removes the image caption if the selection is anchored in one.\n *\n * ```ts\n * // Toggle the presence of the caption.\n * editor.execute( 'toggleImageCaption' );\n * ```\n *\n * **Note**: Upon executing this command, the selection will be set on the image if previously anchored in the caption element.\n *\n * **Note**: You can move the selection to the caption right away as it shows up upon executing this command by using\n * the `focusCaptionOnShow` option:\n *\n * ```ts\n * editor.execute( 'toggleImageCaption', { focusCaptionOnShow: true } );\n * ```\n */\nexport default class ToggleImageCaptionCommand extends Command {\n\tdeclare public value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageCaptionUtils: ImageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\t// Only block images can get captions.\n\t\tif ( !editor.plugins.has( ImageBlockEditing ) ) {\n\t\t\tthis.isEnabled = false;\n\t\t\tthis.value = false;\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst selection = editor.model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tif ( !selectedElement ) {\n\t\t\tconst ancestorCaptionElement = imageCaptionUtils.getCaptionFromModelSelection( selection );\n\n\t\t\tthis.isEnabled = !!ancestorCaptionElement;\n\t\t\tthis.value = !!ancestorCaptionElement;\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Block images support captions by default but the command should also be enabled for inline\n\t\t// images because toggling the caption when one is selected should convert it into a block image.\n\t\tthis.isEnabled = imageUtils.isImage( selectedElement );\n\n\t\tif ( !this.isEnabled ) {\n\t\t\tthis.value = false;\n\t\t} else {\n\t\t\tthis.value = !!imageCaptionUtils.getCaptionFromImageModelElement( selectedElement );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * ```ts\n\t * editor.execute( 'toggleImageCaption' );\n\t * ```\n\t *\n\t * @param options Options for the executed command.\n\t * @param options.focusCaptionOnShow When true and the caption shows up, the selection will be moved into it straight away.\n\t * @fires execute\n\t */\n\tpublic override execute( options: { focusCaptionOnShow?: boolean } = {} ): void {\n\t\tconst { focusCaptionOnShow } = options;\n\n\t\tthis.editor.model.change( writer => {\n\t\t\tif ( this.value ) {\n\t\t\t\tthis._hideImageCaption( writer );\n\t\t\t} else {\n\t\t\t\tthis._showImageCaption( writer, focusCaptionOnShow );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the caption of the `<imageBlock>` or `<imageInline>`. Also:\n\t *\n\t * * it converts `<imageInline>` to `<imageBlock>` to show the caption,\n\t * * it attempts to restore the caption content from the `ImageCaptionEditing` caption registry,\n\t * * it moves the selection to the caption right away, it the `focusCaptionOnShow` option was set.\n\t */\n\tprivate _showImageCaption( writer: Writer, focusCaptionOnShow?: boolean ): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst imageCaptionEditing: ImageCaptionEditing = this.editor.plugins.get( 'ImageCaptionEditing' );\n\t\tconst imageUtils: ImageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\tlet selectedImage = selection.getSelectedElement()!;\n\n\t\tconst savedCaption = imageCaptionEditing._getSavedCaption( selectedImage );\n\n\t\t// Convert imageInline -> image first.\n\t\tif ( imageUtils.isInlineImage( selectedImage ) ) {\n\t\t\tthis.editor.execute( 'imageTypeBlock' );\n\n\t\t\t// Executing the command created a new model element. Let's pick it again.\n\t\t\tselectedImage = selection.getSelectedElement()!;\n\t\t}\n\n\t\t// Try restoring the caption from the ImageCaptionEditing plugin storage.\n\t\tconst newCaptionElement = savedCaption || writer.createElement( 'caption' );\n\n\t\twriter.append( newCaptionElement, selectedImage );\n\n\t\tif ( focusCaptionOnShow ) {\n\t\t\twriter.setSelection( newCaptionElement, 'in' );\n\t\t}\n\t}\n\n\t/**\n\t * Hides the caption of a selected image (or an image caption the selection is anchored to).\n\t *\n\t * The content of the caption is stored in the `ImageCaptionEditing` caption registry to make this\n\t * a reversible action.\n\t */\n\tprivate _hideImageCaption( writer: Writer ): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst imageCaptionEditing: ImageCaptionEditing = editor.plugins.get( 'ImageCaptionEditing' );\n\t\tconst imageCaptionUtils: ImageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tlet selectedImage = selection.getSelectedElement()!;\n\t\tlet captionElement: Element;\n\n\t\tif ( selectedImage ) {\n\t\t\tcaptionElement = imageCaptionUtils.getCaptionFromImageModelElement( selectedImage )!;\n\t\t} else {\n\t\t\tcaptionElement = imageCaptionUtils.getCaptionFromModelSelection( selection )!;\n\t\t\tselectedImage = captionElement!.parent as Element;\n\t\t}\n\n\t\t// Store the caption content so it can be restored quickly if the user changes their mind even if they toggle image<->imageInline.\n\t\timageCaptionEditing._saveCaption( selectedImage, captionElement );\n\n\t\twriter.setSelection( selectedImage, 'on' );\n\t\twriter.remove( captionElement );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption/imagecaptionutils\n */\n\nimport type { DocumentSelection, Element, Selection, ViewElement, Match } from 'ckeditor5/src/engine';\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport ImageUtils from '../imageutils';\n\n/**\n * The image caption utilities plugin.\n */\nexport default class ImageCaptionUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageCaptionUtils' {\n\t\treturn 'ImageCaptionUtils';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageUtils ] as const;\n\t}\n\n\t/**\n\t * Returns the caption model element from a given image element. Returns `null` if no caption is found.\n\t */\n\tpublic getCaptionFromImageModelElement( imageModelElement: Element ): Element | null {\n\t\tfor ( const node of imageModelElement.getChildren() ) {\n\t\t\tif ( !!node && node.is( 'element', 'caption' ) ) {\n\t\t\t\treturn node;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the caption model element for a model selection. Returns `null` if the selection has no caption element ancestor.\n\t */\n\tpublic getCaptionFromModelSelection( selection: Selection | DocumentSelection ): Element | null {\n\t\tconst imageUtils: ImageUtils = this.editor.plugins.get( 'ImageUtils' );\n\t\tconst captionElement = selection.getFirstPosition()!.findAncestor( 'caption' );\n\n\t\tif ( !captionElement ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( imageUtils.isBlockImage( captionElement.parent as Element ) ) {\n\t\t\treturn captionElement;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * {@link module:engine/view/matcher~Matcher} pattern. Checks if a given element is a `<figcaption>` element that is placed\n\t * inside the image `<figure>` element.\n\t * @returns Returns the object accepted by {@link module:engine/view/matcher~Matcher} or `null` if the element\n\t * cannot be matched.\n\t */\n\tpublic matchImageCaptionViewElement( element: ViewElement ): Match | null {\n\t\tconst imageUtils: ImageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\t// Convert only captions for images.\n\t\tif ( element.name == 'figcaption' && imageUtils.isBlockImageView( element.parent as ViewElement ) ) {\n\t\t\treturn { name: true };\n\t\t}\n\n\t\treturn null;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption/imagecaptionediting\n */\n\nimport { type Editor, Plugin, type CommandExecuteEvent } from 'ckeditor5/src/core';\nimport { Element, enablePlaceholder, type DocumentChangeEvent, type DiffItemAttribute } from 'ckeditor5/src/engine';\nimport { toWidgetEditable } from 'ckeditor5/src/widget';\nimport type { GetCallback } from 'ckeditor5/src/utils';\n\nimport ToggleImageCaptionCommand from './toggleimagecaptioncommand';\nimport ImageUtils from '../imageutils';\nimport ImageCaptionUtils from './imagecaptionutils';\n\n/**\n * The image caption engine plugin. It is responsible for:\n *\n * * registering converters for the caption element,\n * * registering converters for the caption model attribute,\n * * registering the {@link module:image/imagecaption/toggleimagecaptioncommand~ToggleImageCaptionCommand `toggleImageCaption`} command.\n */\nexport default class ImageCaptionEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageUtils, ImageCaptionUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageCaptionEditing' {\n\t\treturn 'ImageCaptionEditing';\n\t}\n\n\t/**\n\t * A map that keeps saved JSONified image captions and image model elements they are\n\t * associated with.\n\t *\n\t * To learn more about this system, see {@link #_saveCaption}.\n\t */\n\tprivate _savedCaptionsMap: WeakMap<Element, unknown>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._savedCaptionsMap = new WeakMap();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\t// Schema configuration.\n\t\tif ( !schema.isRegistered( 'caption' ) ) {\n\t\t\tschema.register( 'caption', {\n\t\t\t\tallowIn: 'imageBlock',\n\t\t\t\tallowContentOf: '$block',\n\t\t\t\tisLimit: true\n\t\t\t} );\n\t\t} else {\n\t\t\tschema.extend( 'caption', {\n\t\t\t\tallowIn: 'imageBlock'\n\t\t\t} );\n\t\t}\n\n\t\teditor.commands.add( 'toggleImageCaption', new ToggleImageCaptionCommand( this.editor ) );\n\n\t\tthis._setupConversion();\n\t\tthis._setupImageTypeCommandsIntegration();\n\t\tthis._registerCaptionReconversion();\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting\n\t * image captions.\n\t */\n\tprivate _setupConversion(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageCaptionUtils: ImageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tconst t = editor.t;\n\n\t\t// View -> model converter for the data pipeline.\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tview: element => imageCaptionUtils.matchImageCaptionViewElement( element ),\n\t\t\tmodel: 'caption'\n\t\t} );\n\n\t\t// Model -> view converter for the data pipeline.\n\t\teditor.conversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !imageUtils.isBlockImage( modelElement.parent as Element ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createContainerElement( 'figcaption' );\n\t\t\t}\n\t\t} );\n\n\t\t// Model -> view converter for the editing pipeline.\n\t\teditor.conversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !imageUtils.isBlockImage( modelElement.parent as Element ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tconst figcaptionElement = writer.createEditableElement( 'figcaption' );\n\t\t\t\twriter.setCustomProperty( 'imageCaption', true, figcaptionElement );\n\n\t\t\t\tenablePlaceholder( {\n\t\t\t\t\tview,\n\t\t\t\t\telement: figcaptionElement,\n\t\t\t\t\ttext: t( 'Enter image caption' ),\n\t\t\t\t\tkeepOnFocus: true\n\t\t\t\t} );\n\n\t\t\t\tconst imageAlt = ( modelElement.parent as Element ).getAttribute( 'alt' ) as string;\n\t\t\t\tconst label = imageAlt ? t( 'Caption for image: %0', [ imageAlt ] ) : t( 'Caption for the image' );\n\n\t\t\t\treturn toWidgetEditable( figcaptionElement, writer, { label } );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Integrates with {@link module:image/image/imagetypecommand~ImageTypeCommand image type commands}\n\t * to make sure the caption is preserved when the type of an image changes so it can be restored\n\t * in the future if the user decides they want their caption back.\n\t */\n\tprivate _setupImageTypeCommandsIntegration(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageCaptionUtils: ImageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tconst imageTypeInlineCommand = editor.commands.get( 'imageTypeInline' );\n\t\tconst imageTypeBlockCommand = editor.commands.get( 'imageTypeBlock' );\n\n\t\tconst handleImageTypeChange: GetCallback<CommandExecuteEvent> = evt => {\n\t\t\t// The image type command execution can be unsuccessful.\n\t\t\tif ( !evt.return ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { oldElement, newElement } = evt.return as { oldElement: Element; newElement: Element };\n\n\t\t\t/* istanbul ignore if: paranoid check -- @preserve */\n\t\t\tif ( !oldElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( imageUtils.isBlockImage( oldElement ) ) {\n\t\t\t\tconst oldCaptionElement = imageCaptionUtils.getCaptionFromImageModelElement( oldElement );\n\n\t\t\t\t// If the old element was a captioned block image (the caption was visible),\n\t\t\t\t// simply save it so it can be restored.\n\t\t\t\tif ( oldCaptionElement ) {\n\t\t\t\t\tthis._saveCaption( newElement, oldCaptionElement );\n\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst savedOldElementCaption = this._getSavedCaption( oldElement );\n\n\t\t\t// If either:\n\t\t\t//\n\t\t\t// * the block image didn't have a visible caption,\n\t\t\t// * the block image caption was hidden (and already saved),\n\t\t\t// * the inline image was passed\n\t\t\t//\n\t\t\t// just try to \"pass\" the saved caption from the old image to the new image\n\t\t\t// so it can be retrieved in the future if the user wants it back.\n\t\t\tif ( savedOldElementCaption ) {\n\t\t\t\t// Note: Since we're writing to a WeakMap, we don't bother with removing the\n\t\t\t\t// [ oldElement, savedOldElementCaption ] pair from it.\n\t\t\t\tthis._saveCaption( newElement, savedOldElementCaption );\n\t\t\t}\n\t\t};\n\n\t\t// Presence of the commands depends on the Image(Inline|Block)Editing plugins loaded in the editor.\n\t\tif ( imageTypeInlineCommand ) {\n\t\t\tthis.listenTo<CommandExecuteEvent>( imageTypeInlineCommand, 'execute', handleImageTypeChange, { priority: 'low' } );\n\t\t}\n\n\t\tif ( imageTypeBlockCommand ) {\n\t\t\tthis.listenTo<CommandExecuteEvent>( imageTypeBlockCommand, 'execute', handleImageTypeChange, { priority: 'low' } );\n\t\t}\n\t}\n\n\t/**\n\t * Returns the saved {@link module:engine/model/element~Element#toJSON JSONified} caption\n\t * of an image model element.\n\t *\n\t * See {@link #_saveCaption}.\n\t *\n\t * @internal\n\t * @param imageModelElement The model element the caption should be returned for.\n\t * @returns The model caption element or `null` if there is none.\n\t */\n\tpublic _getSavedCaption( imageModelElement: Element ): Element | null {\n\t\tconst jsonObject = this._savedCaptionsMap.get( imageModelElement );\n\n\t\treturn jsonObject ? Element.fromJSON( jsonObject ) : null;\n\t}\n\n\t/**\n\t * Saves a {@link module:engine/model/element~Element#toJSON JSONified} caption for\n\t * an image element to allow restoring it in the future.\n\t *\n\t * A caption is saved every time it gets hidden and/or the type of an image changes. The\n\t * user should be able to restore it on demand.\n\t *\n\t * **Note**: The caption cannot be stored in the image model element attribute because,\n\t * for instance, when the model state propagates to collaborators, the attribute would get\n\t * lost (mainly because it does not convert to anything when the caption is hidden) and\n\t * the states of collaborators' models would de-synchronize causing numerous issues.\n\t *\n\t * See {@link #_getSavedCaption}.\n\t *\n\t * @internal\n\t * @param imageModelElement The model element the caption is saved for.\n\t * @param caption The caption model element to be saved.\n\t */\n\tpublic _saveCaption( imageModelElement: Element, caption: Element ): void {\n\t\tthis._savedCaptionsMap.set( imageModelElement, caption.toJSON() );\n\t}\n\n\t/**\n\t * Reconverts image caption when image alt attribute changes.\n\t * The change of alt attribute is reflected in caption's aria-label attribute.\n\t */\n\tprivate _registerCaptionReconversion(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageCaptionUtils: ImageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\n\t\tmodel.document.on<DocumentChangeEvent>( 'change:data', () => {\n\t\t\tconst changes = model.document.differ.getChanges();\n\n\t\t\tfor ( const change of changes as Array<DiffItemAttribute> ) {\n\t\t\t\tif ( change.attributeKey !== 'alt' ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tconst image = change.range.start.nodeAfter as Element;\n\n\t\t\t\tif ( imageUtils.isBlockImage( image ) ) {\n\t\t\t\t\tconst caption = imageCaptionUtils.getCaptionFromImageModelElement( image );\n\n\t\t\t\t\tif ( !caption ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\teditor.editing.reconvertItem( caption );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption/imagecaptionui\n */\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport ImageCaptionUtils from './imagecaptionutils';\nimport type ToggleImageCaptionCommand from './toggleimagecaptioncommand';\n\n/**\n * The image caption UI plugin. It introduces the `'toggleImageCaption'` UI button.\n */\nexport default class ImageCaptionUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageCaptionUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageCaptionUI' {\n\t\treturn 'ImageCaptionUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst imageCaptionUtils: ImageCaptionUtils = editor.plugins.get( 'ImageCaptionUtils' );\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'toggleImageCaption', locale => {\n\t\t\tconst command: ToggleImageCaptionCommand = editor.commands.get( 'toggleImageCaption' )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\ticon: icons.caption,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\t\t\tview.bind( 'label' ).to( command, 'value', value => value ? t( 'Toggle caption off' ) : t( 'Toggle caption on' ) );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'toggleImageCaption', { focusCaptionOnShow: true } );\n\n\t\t\t\t// Scroll to the selection and highlight the caption if the caption showed up.\n\t\t\t\tconst modelCaptionElement = imageCaptionUtils.getCaptionFromModelSelection( editor.model.document.selection );\n\n\t\t\t\tif ( modelCaptionElement ) {\n\t\t\t\t\tconst figcaptionElement = editor.editing.mapper.toViewElement( modelCaptionElement );\n\n\t\t\t\t\teditingView.scrollToTheSelection();\n\n\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\twriter.addClass( 'image__caption_highlighted', figcaptionElement! );\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imagecaption.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/imagestylecommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { ImageStyleOptionDefinition } from '../imageconfig';\nimport type ImageUtils from '../imageutils';\n\n/**\n * The image style command. It is used to apply {@link module:image/imageconfig~ImageStyleConfig#options image style option}\n * to a selected image.\n *\n * **Note**: Executing this command may change the image model element if the desired style requires an image of a different\n * type. See {@link module:image/imagestyle/imagestylecommand~ImageStyleCommand#execute} to learn more.\n */\nexport default class ImageStyleCommand extends Command {\n\t/**\n\t * An object containing names of default style options for the inline and block images.\n\t * If there is no default style option for the given image type in the configuration,\n\t * the name will be `false`.\n\t */\n\tprivate _defaultStyles: Record<string, string | false>;\n\n\t/**\n\t * The styles handled by this command.\n\t */\n\tprivate _styles: Map<string, ImageStyleOptionDefinition>;\n\n\t/**\n\t * Creates an instance of the image style command. When executed, the command applies one of\n\t * {@link module:image/imageconfig~ImageStyleConfig#options style options} to the currently selected image.\n\t *\n\t * @param editor The editor instance.\n\t * @param styles The style options that this command supports.\n\t */\n\tconstructor( editor: Editor, styles: Array<ImageStyleOptionDefinition> ) {\n\t\tsuper( editor );\n\n\t\tthis._defaultStyles = {\n\t\t\timageBlock: false,\n\t\t\timageInline: false\n\t\t};\n\n\t\tthis._styles = new Map( styles.map( style => {\n\t\t\tif ( style.isDefault ) {\n\t\t\t\tfor ( const modelElementName of style.modelElements ) {\n\t\t\t\t\tthis._defaultStyles[ modelElementName ] = style.name;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn [ style.name, style ];\n\t\t} ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( this.editor.model.document.selection )!;\n\n\t\tthis.isEnabled = !!element;\n\n\t\tif ( !this.isEnabled ) {\n\t\t\tthis.value = false;\n\t\t} else if ( element.hasAttribute( 'imageStyle' ) ) {\n\t\t\tthis.value = element.getAttribute( 'imageStyle' );\n\t\t} else {\n\t\t\tthis.value = this._defaultStyles[ element.name ];\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command and applies the style to the currently selected image:\n\t *\n\t * ```ts\n\t * editor.execute( 'imageStyle', { value: 'side' } );\n\t * ```\n\t *\n\t * **Note**: Executing this command may change the image model element if the desired style requires an image\n\t * of a different type. Learn more about {@link module:image/imageconfig~ImageStyleOptionDefinition#modelElements model element}\n\t * configuration for the style option.\n\t *\n\t * @param options.value The name of the style (as configured in {@link module:image/imageconfig~ImageStyleConfig#options}).\n\t * @fires execute\n\t */\n\tpublic override execute( options: { value?: string } = {} ): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tmodel.change( writer => {\n\t\t\tconst requestedStyle = options.value;\n\n\t\t\tlet imageElement = imageUtils.getClosestSelectedImageElement( model.document.selection )!;\n\n\t\t\t// Change the image type if a style requires it.\n\t\t\tif ( requestedStyle && this.shouldConvertImageType( requestedStyle, imageElement ) ) {\n\t\t\t\tthis.editor.execute( imageUtils.isBlockImage( imageElement ) ? 'imageTypeInline' : 'imageTypeBlock' );\n\n\t\t\t\t// Update the imageElement to the newly created image.\n\t\t\t\timageElement = imageUtils.getClosestSelectedImageElement( model.document.selection )!;\n\t\t\t}\n\n\t\t\t// Default style means that there is no `imageStyle` attribute in the model.\n\t\t\t// https://github.com/ckeditor/ckeditor5-image/issues/147\n\t\t\tif ( !requestedStyle || this._styles.get( requestedStyle )!.isDefault ) {\n\t\t\t\twriter.removeAttribute( 'imageStyle', imageElement );\n\t\t\t} else {\n\t\t\t\twriter.setAttribute( 'imageStyle', requestedStyle, imageElement );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns `true` if requested style change would trigger the image type change.\n\t *\n\t * @param requestedStyle The name of the style (as configured in {@link module:image/imageconfig~ImageStyleConfig#options}).\n\t * @param imageElement The image model element.\n\t */\n\tpublic shouldConvertImageType( requestedStyle: string, imageElement: Element ): boolean {\n\t\tconst supportedTypes = this._styles.get( requestedStyle )!.modelElements;\n\n\t\treturn !supportedTypes.includes( imageElement.name );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/utils\n */\n\nimport { type Editor, icons, type PluginCollection } from 'ckeditor5/src/core';\nimport { logWarning } from 'ckeditor5/src/utils';\nimport type { ImageStyleConfig, ImageStyleDropdownDefinition, ImageStyleOptionDefinition } from '../imageconfig';\n\nconst {\n\tobjectFullWidth,\n\tobjectInline,\n\tobjectLeft,\tobjectRight, objectCenter,\n\tobjectBlockLeft, objectBlockRight\n} = icons;\n\n/**\n * Default image style options provided by the plugin that can be referred in the {@link module:image/imageconfig~ImageConfig#styles}\n * configuration.\n *\n * There are available 5 styles focused on formatting:\n *\n * * **`'alignLeft'`** aligns the inline or block image to the left and wraps it with the text using the `image-style-align-left` class,\n * * **`'alignRight'`** aligns the inline or block image to the right and wraps it with the text using the `image-style-align-right` class,\n * * **`'alignCenter'`** centers the block image using the `image-style-align-center` class,\n * * **`'alignBlockLeft'`** aligns the block image to the left using the `image-style-block-align-left` class,\n * * **`'alignBlockRight'`** aligns the block image to the right using the `image-style-block-align-right` class,\n *\n * and 3 semantic styles:\n *\n * * **`'inline'`** is an inline image without any CSS class,\n * * **`'block'`** is a block image without any CSS class,\n * * **`'side'`** is a block image styled with the `image-style-side` CSS class.\n */\nexport const DEFAULT_OPTIONS: Record<string, ImageStyleOptionDefinition> = {\n\t// This style represents an image placed in the line of text.\n\tget inline() {\n\t\treturn {\n\t\t\tname: 'inline',\n\t\t\ttitle: 'In line',\n\t\t\ticon: objectInline,\n\t\t\tmodelElements: [ 'imageInline' ],\n\t\t\tisDefault: true\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the left and wrapped with text.\n\tget alignLeft() {\n\t\treturn {\n\t\t\tname: 'alignLeft',\n\t\t\ttitle: 'Left aligned image',\n\t\t\ticon: objectLeft,\n\t\t\tmodelElements: [ 'imageBlock', 'imageInline' ],\n\t\t\tclassName: 'image-style-align-left'\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the left.\n\tget alignBlockLeft() {\n\t\treturn {\n\t\t\tname: 'alignBlockLeft',\n\t\t\ttitle: 'Left aligned image',\n\t\t\ticon: objectBlockLeft,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-block-align-left'\n\t\t};\n\t},\n\n\t// This style represents a centered image.\n\tget alignCenter() {\n\t\treturn {\n\t\t\tname: 'alignCenter',\n\t\t\ttitle: 'Centered image',\n\t\t\ticon: objectCenter,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-align-center'\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the right and wrapped with text.\n\tget alignRight() {\n\t\treturn {\n\t\t\tname: 'alignRight',\n\t\t\ttitle: 'Right aligned image',\n\t\t\ticon: objectRight,\n\t\t\tmodelElements: [ 'imageBlock', 'imageInline' ],\n\t\t\tclassName: 'image-style-align-right'\n\t\t};\n\t},\n\n\t// This style represents an image aligned to the right.\n\tget alignBlockRight() {\n\t\treturn {\n\t\t\tname: 'alignBlockRight',\n\t\t\ttitle: 'Right aligned image',\n\t\t\ticon: objectBlockRight,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-block-align-right'\n\t\t};\n\t},\n\n\t// This option is equal to the situation when no style is applied.\n\tget block() {\n\t\treturn {\n\t\t\tname: 'block',\n\t\t\ttitle: 'Centered image',\n\t\t\ticon: objectCenter,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tisDefault: true\n\t\t};\n\t},\n\n\t// This represents a side image.\n\tget side() {\n\t\treturn {\n\t\t\tname: 'side',\n\t\t\ttitle: 'Side image',\n\t\t\ticon: objectRight,\n\t\t\tmodelElements: [ 'imageBlock' ],\n\t\t\tclassName: 'image-style-side'\n\t\t};\n\t}\n};\n\n/**\n * Default image style icons provided by the plugin that can be referred in the {@link module:image/imageconfig~ImageConfig#styles}\n * configuration.\n *\n * See {@link module:image/imageconfig~ImageStyleOptionDefinition#icon} to learn more.\n *\n * There are 7 default icons available: `'full'`, `'left'`, `'inlineLeft'`, `'center'`, `'right'`, `'inlineRight'`, and `'inline'`.\n */\nexport const DEFAULT_ICONS: Record<string, string> = {\n\tfull: objectFullWidth,\n\tleft: objectBlockLeft,\n\tright: objectBlockRight,\n\tcenter: objectCenter,\n\tinlineLeft: objectLeft,\n\tinlineRight: objectRight,\n\tinline: objectInline\n};\n\n/**\n * Default drop-downs provided by the plugin that can be referred in the {@link module:image/imageconfig~ImageConfig#toolbar}\n * configuration. The drop-downs are containers for the {@link module:image/imageconfig~ImageStyleConfig#options image style options}.\n *\n * If both of the `ImageEditing` plugins are loaded, there are 2 predefined drop-downs available:\n *\n * * **`'imageStyle:wrapText'`**, which contains the `alignLeft` and `alignRight` options, that is,\n * those that wraps the text around the image,\n * * **`'imageStyle:breakText'`**, which contains the `alignBlockLeft`, `alignCenter` and `alignBlockRight` options, that is,\n * those that breaks the text around the image.\n */\nexport const DEFAULT_DROPDOWN_DEFINITIONS: Array<ImageStyleDropdownDefinition> = [ {\n\tname: 'imageStyle:wrapText',\n\ttitle: 'Wrap text',\n\tdefaultItem: 'imageStyle:alignLeft',\n\titems: [ 'imageStyle:alignLeft', 'imageStyle:alignRight' ]\n}, {\n\tname: 'imageStyle:breakText',\n\ttitle: 'Break text',\n\tdefaultItem: 'imageStyle:block',\n\titems: [ 'imageStyle:alignBlockLeft', 'imageStyle:block', 'imageStyle:alignBlockRight' ]\n} ];\n\n/**\n * Returns a list of the normalized and validated image style options.\n *\n * @param config\n * @param config.isInlinePluginLoaded\n * Determines whether the {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugin has been loaded.\n * @param config.isBlockPluginLoaded\n * Determines whether the {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} plugin has been loaded.\n * @param config.configuredStyles\n * The image styles configuration provided in the image styles {@link module:image/imageconfig~ImageConfig#styles configuration}\n * as a default or custom value.\n * @returns\n * * Each of options contains a complete icon markup.\n * * The image style options not supported by any of the loaded plugins are filtered out.\n */\nfunction normalizeStyles( config: {\n\tisInlinePluginLoaded: boolean;\n\tisBlockPluginLoaded: boolean;\n\tconfiguredStyles: ImageStyleConfig;\n}\n): Array<ImageStyleOptionDefinition> {\n\tconst configuredStyles = config.configuredStyles.options || [];\n\n\tconst styles = configuredStyles\n\t\t.map( arrangement => normalizeDefinition( arrangement ) )\n\t\t.filter( arrangement => isValidOption( arrangement, config ) );\n\n\treturn styles;\n}\n\n/**\n * Returns the default image styles configuration depending on the loaded image editing plugins.\n *\n * @param isInlinePluginLoaded\n * Determines whether the {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugin has been loaded.\n *\n * @param isBlockPluginLoaded\n * Determines whether the {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} plugin has been loaded.\n *\n * @returns\n * It returns an object with the lists of the image style options and groups defined as strings related to the\n * {@link module:image/imagestyle/utils#DEFAULT_OPTIONS default options}\n */\nfunction getDefaultStylesConfiguration( isBlockPluginLoaded: boolean, isInlinePluginLoaded: boolean ): ImageStyleConfig {\n\tif ( isBlockPluginLoaded && isInlinePluginLoaded ) {\n\t\treturn {\n\t\t\toptions: [\n\t\t\t\t'inline', 'alignLeft', 'alignRight',\n\t\t\t\t'alignCenter', 'alignBlockLeft', 'alignBlockRight',\n\t\t\t\t'block', 'side'\n\t\t\t]\n\t\t};\n\t} else if ( isBlockPluginLoaded ) {\n\t\treturn {\n\t\t\toptions: [ 'block', 'side' ]\n\t\t};\n\t} else if ( isInlinePluginLoaded ) {\n\t\treturn {\n\t\t\toptions: [ 'inline', 'alignLeft', 'alignRight' ]\n\t\t};\n\t}\n\n\treturn {};\n}\n\n/**\n * Returns a list of the available predefined drop-downs' definitions depending on the loaded image editing plugins.\n */\nfunction getDefaultDropdownDefinitions( pluginCollection: PluginCollection<Editor> ): Array<ImageStyleDropdownDefinition> {\n\tif ( pluginCollection.has( 'ImageBlockEditing' ) && pluginCollection.has( 'ImageInlineEditing' ) ) {\n\t\treturn [ ...DEFAULT_DROPDOWN_DEFINITIONS ];\n\t} else {\n\t\treturn [];\n\t}\n}\n\n/**\n * Normalizes an image style option or group provided in the {@link module:image/imageconfig~ImageConfig#styles}\n * and returns it in a {@link module:image/imageconfig~ImageStyleOptionDefinition}/\n */\nfunction normalizeDefinition( definition: string | Partial<ImageStyleOptionDefinition> & { name: string } ): ImageStyleOptionDefinition {\n\tif ( typeof definition === 'string' ) {\n\t\t// Just the name of the style has been passed, but none of the defaults.\n\t\tif ( !DEFAULT_OPTIONS[ definition ] ) {\n\t\t\t// Normalize the style anyway to prevent errors.\n\t\t\tdefinition = { name: definition };\n\t\t}\n\t\t// Just the name of the style has been passed and it's one of the defaults, just use it.\n\t\t// Clone the style to avoid overriding defaults.\n\t\telse {\n\t\t\tdefinition = { ...DEFAULT_OPTIONS[ definition ] };\n\t\t}\n\t} else {\n\t\t// If an object style has been passed and if the name matches one of the defaults,\n\t\t// extend it with defaults – the user wants to customize a default style.\n\t\t// Note: Don't override the user–defined style object, clone it instead.\n\t\tdefinition = extendStyle( DEFAULT_OPTIONS[ definition.name ], definition );\n\t}\n\n\t// If an icon is defined as a string and correspond with a name\n\t// in default icons, use the default icon provided by the plugin.\n\tif ( typeof definition.icon === 'string' ) {\n\t\tdefinition.icon = DEFAULT_ICONS[ definition.icon ] || definition.icon;\n\t}\n\n\treturn definition as ImageStyleOptionDefinition;\n}\n\n/**\n * Checks if the image style option is valid:\n * * if it has the modelElements fields defined and filled,\n * * if the defined modelElements are supported by any of the loaded image editing plugins.\n * It also displays a console warning these conditions are not met.\n *\n * @param option image style option\n */\nfunction isValidOption(\n\toption: ImageStyleOptionDefinition,\n\t{ isBlockPluginLoaded, isInlinePluginLoaded }: { isBlockPluginLoaded: boolean; isInlinePluginLoaded: boolean }\n): boolean {\n\tconst { modelElements, name } = option;\n\n\tif ( !modelElements || !modelElements.length || !name ) {\n\t\twarnInvalidStyle( { style: option } );\n\n\t\treturn false;\n\t} else {\n\t\tconst supportedElements = [ isBlockPluginLoaded ? 'imageBlock' : null, isInlinePluginLoaded ? 'imageInline' : null ];\n\n\t\t// Check if the option is supported by any of the loaded plugins.\n\t\tif ( !modelElements.some( elementName => supportedElements.includes( elementName ) ) ) {\n\t\t\t/**\n\t\t\t * In order to work correctly, each image style {@link module:image/imageconfig~ImageStyleOptionDefinition option}\n\t\t\t * requires specific model elements (also: types of images) to be supported by the editor.\n\t\t\t *\n\t\t\t * Model element names to which the image style option can be applied are defined in the\n\t\t\t * {@link module:image/imageconfig~ImageStyleOptionDefinition#modelElements} property of the style option\n\t\t\t * definition.\n\t\t\t *\n\t\t\t * Explore the warning in the console to find out precisely which option is not supported and which editor plugins\n\t\t\t * are missing. Make sure these plugins are loaded in your editor to get this image style option working.\n\t\t\t *\n\t\t\t * @error image-style-missing-dependency\n\t\t\t * @param {String} [option] The name of the unsupported option.\n\t\t\t * @param {String} [missingPlugins] The names of the plugins one of which has to be loaded for the particular option.\n\t\t\t */\n\t\t\tlogWarning( 'image-style-missing-dependency', {\n\t\t\t\tstyle: option,\n\t\t\t\tmissingPlugins: modelElements.map( name => name === 'imageBlock' ? 'ImageBlockEditing' : 'ImageInlineEditing' )\n\t\t\t} );\n\n\t\t\treturn false;\n\t\t}\n\t}\n\n\treturn true;\n}\n\n/**\n * Extends the default style with a style provided by the developer.\n * Note: Don't override the custom–defined style object, clone it instead.\n */\nfunction extendStyle( source: ImageStyleOptionDefinition, style: Partial<ImageStyleOptionDefinition> ): ImageStyleOptionDefinition {\n\tconst extendedStyle: Record<string, any> = { ...style };\n\n\tfor ( const prop in source ) {\n\t\tif ( !Object.prototype.hasOwnProperty.call( style, prop ) ) {\n\t\t\textendedStyle[ prop ] = source[ prop as keyof typeof source ];\n\t\t}\n\t}\n\n\treturn extendedStyle as ImageStyleOptionDefinition;\n}\n\n/**\n * Displays a console warning with the 'image-style-configuration-definition-invalid' error.\n */\nfunction warnInvalidStyle( info: object ): void {\n\t/**\n\t * The image style definition provided in the configuration is invalid.\n\t *\n\t * Please make sure the definition implements properly one of the following:\n\t *\n\t * * {@link module:image/imageconfig~ImageStyleOptionDefinition image style option definition},\n\t * * {@link module:image/imageconfig~ImageStyleDropdownDefinition image style dropdown definition}\n\t *\n\t * @error image-style-configuration-definition-invalid\n\t * @param {String} [dropdown] The name of the invalid drop-down\n\t * @param {String} [style] The name of the invalid image style option\n\t */\n\tlogWarning( 'image-style-configuration-definition-invalid', info );\n}\n\nexport default {\n\tnormalizeStyles,\n\tgetDefaultStylesConfiguration,\n\tgetDefaultDropdownDefinitions,\n\twarnInvalidStyle,\n\tDEFAULT_OPTIONS,\n\tDEFAULT_ICONS,\n\tDEFAULT_DROPDOWN_DEFINITIONS\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { DowncastAttributeEvent, Element, UpcastElementEvent } from 'ckeditor5/src/engine';\nimport { first, type GetCallback } from 'ckeditor5/src/utils';\nimport type { ImageStyleOptionDefinition } from '../imageconfig';\n\n/**\n * @module image/imagestyle/converters\n */\n\n/**\n * Returns a converter for the `imageStyle` attribute. It can be used for adding, changing and removing the attribute.\n *\n * @param styles An array containing available image style options.\n * @returns A model-to-view attribute converter.\n */\nexport function modelToViewStyleAttribute( styles: Array<ImageStyleOptionDefinition> ): GetCallback<DowncastAttributeEvent> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check if there is class name associated with given value.\n\t\tconst newStyle = getStyleDefinitionByName( data.attributeNewValue as string, styles );\n\t\tconst oldStyle = getStyleDefinitionByName( data.attributeOldValue as string, styles );\n\n\t\tconst viewElement = conversionApi.mapper.toViewElement( data.item as Element )!;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\tif ( oldStyle ) {\n\t\t\tviewWriter.removeClass( oldStyle.className!, viewElement );\n\t\t}\n\n\t\tif ( newStyle ) {\n\t\t\tviewWriter.addClass( newStyle.className!, viewElement );\n\t\t}\n\t};\n}\n\n/**\n * Returns a view-to-model converter converting image CSS classes to a proper value in the model.\n *\n * @param styles Image style options for which the converter is created.\n * @returns A view-to-model converter.\n */\nexport function viewToModelStyleAttribute( styles: Array<ImageStyleOptionDefinition> ): GetCallback<UpcastElementEvent> {\n\t// Convert only non–default styles.\n\tconst nonDefaultStyles: Record<string, Array<ImageStyleOptionDefinition>> = {\n\t\timageInline: styles.filter( style => !style.isDefault && style.modelElements.includes( 'imageInline' ) ),\n\t\timageBlock: styles.filter( style => !style.isDefault && style.modelElements.includes( 'imageBlock' ) )\n\t};\n\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !data.modelRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewElement = data.viewItem;\n\t\tconst modelImageElement = first( data.modelRange.getItems() );\n\n\t\t// Run this converter only if an image has been found in the model.\n\t\t// In some cases it may not be found (for example if we run this on a figure with different type than image).\n\t\tif ( !modelImageElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// ...and the `imageStyle` attribute is allowed for that element, otherwise stop conversion early.\n\t\tif ( !conversionApi.schema.checkAttribute( modelImageElement, 'imageStyle' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Convert styles one by one.\n\t\tfor ( const style of nonDefaultStyles[ ( modelImageElement as Element ).name ] ) {\n\t\t\t// Try to consume class corresponding with the style.\n\t\t\tif ( conversionApi.consumable.consume( viewElement, { classes: style.className } ) ) {\n\t\t\t\t// And convert this style to model attribute.\n\t\t\t\tconversionApi.writer.setAttribute( 'imageStyle', style.name, modelImageElement );\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * Returns the style with a given `name` from an array of styles.\n */\nfunction getStyleDefinitionByName( name: string, styles: Array<ImageStyleOptionDefinition> ): ImageStyleOptionDefinition | undefined {\n\tfor ( const style of styles ) {\n\t\tif ( style.name === name ) {\n\t\t\treturn style;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/imagestyleediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport type { Element, UpcastElementEvent } from 'ckeditor5/src/engine';\n\nimport ImageStyleCommand from './imagestylecommand';\nimport ImageUtils from '../imageutils';\nimport utils from './utils';\nimport { viewToModelStyleAttribute, modelToViewStyleAttribute } from './converters';\nimport type { ImageStyleOptionDefinition } from '../imageconfig';\n\n/**\n * The image style engine plugin. It sets the default configuration, creates converters and registers\n * {@link module:image/imagestyle/imagestylecommand~ImageStyleCommand ImageStyleCommand}.\n */\nexport default class ImageStyleEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageStyleEditing' {\n\t\treturn 'ImageStyleEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageUtils ] as const;\n\t}\n\n\t/**\n\t * It contains a list of the normalized and validated style options.\n\t *\n\t * * Each option contains a complete icon markup.\n\t * * The style options not supported by any of the loaded image editing plugins (\n\t * {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`} or\n\t * {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`}) are filtered out.\n\t *\n\t * @internal\n\t * @readonly\n\t */\n\tpublic normalizedStyles?: Array<ImageStyleOptionDefinition>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst { normalizeStyles, getDefaultStylesConfiguration } = utils;\n\t\tconst editor = this.editor;\n\t\tconst isBlockPluginLoaded = editor.plugins.has( 'ImageBlockEditing' );\n\t\tconst isInlinePluginLoaded = editor.plugins.has( 'ImageInlineEditing' );\n\n\t\teditor.config.define( 'image.styles', getDefaultStylesConfiguration( isBlockPluginLoaded, isInlinePluginLoaded ) );\n\n\t\tthis.normalizedStyles = normalizeStyles( {\n\t\t\tconfiguredStyles: editor.config.get( 'image.styles' )!,\n\t\t\tisBlockPluginLoaded,\n\t\t\tisInlinePluginLoaded\n\t\t} );\n\n\t\tthis._setupConversion( isBlockPluginLoaded, isInlinePluginLoaded );\n\t\tthis._setupPostFixer();\n\n\t\t// Register imageStyle command.\n\t\teditor.commands.add( 'imageStyle', new ImageStyleCommand( editor, this.normalizedStyles ) );\n\t}\n\n\t/**\n\t * Sets the editor conversion taking the presence of\n\t * {@link module:image/image/imageinlineediting~ImageInlineEditing `ImageInlineEditing`}\n\t * and {@link module:image/image/imageblockediting~ImageBlockEditing `ImageBlockEditing`} plugins into consideration.\n\t */\n\tprivate _setupConversion( isBlockPluginLoaded: boolean, isInlinePluginLoaded: boolean ): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\tconst modelToViewConverter = modelToViewStyleAttribute( this.normalizedStyles! );\n\t\tconst viewToModelConverter = viewToModelStyleAttribute( this.normalizedStyles! );\n\n\t\teditor.editing.downcastDispatcher.on( 'attribute:imageStyle', modelToViewConverter );\n\t\teditor.data.downcastDispatcher.on( 'attribute:imageStyle', modelToViewConverter );\n\n\t\t// Allow imageStyle attribute in image and imageInline.\n\t\t// We could call it 'style' but https://github.com/ckeditor/ckeditor5-engine/issues/559.\n\t\tif ( isBlockPluginLoaded ) {\n\t\t\tschema.extend( 'imageBlock', { allowAttributes: 'imageStyle' } );\n\n\t\t\t// Converter for figure element from view to model.\n\t\t\teditor.data.upcastDispatcher.on<UpcastElementEvent>( 'element:figure', viewToModelConverter, { priority: 'low' } );\n\t\t}\n\n\t\tif ( isInlinePluginLoaded ) {\n\t\t\tschema.extend( 'imageInline', { allowAttributes: 'imageStyle' } );\n\n\t\t\t// Converter for the img element from view to model.\n\t\t\teditor.data.upcastDispatcher.on( 'element:img', viewToModelConverter, { priority: 'low' } );\n\t\t}\n\t}\n\n\t/**\n\t * Registers a post-fixer that will make sure that the style attribute value is correct for a specific image type (block vs inline).\n\t */\n\tprivate _setupPostFixer(): void {\n\t\tconst editor = this.editor;\n\t\tconst document = editor.model.document;\n\n\t\tconst imageUtils = editor.plugins.get( ImageUtils );\n\t\tconst stylesMap = new Map( this.normalizedStyles!.map( style => [ style.name, style ] ) );\n\n\t\t// Make sure that style attribute is valid for the image type.\n\t\tdocument.registerPostFixer( writer => {\n\t\t\tlet changed = false;\n\n\t\t\tfor ( const change of document.differ.getChanges() ) {\n\t\t\t\tif ( change.type == 'insert' || change.type == 'attribute' && change.attributeKey == 'imageStyle' ) {\n\t\t\t\t\tlet element = change.type == 'insert' ? change.position.nodeAfter! : change.range.start.nodeAfter!;\n\n\t\t\t\t\tif ( element && element.is( 'element', 'paragraph' ) && element.childCount > 0 ) {\n\t\t\t\t\t\telement = element.getChild( 0 )!;\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( !imageUtils.isImage( element as Element ) ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst imageStyle = element.getAttribute( 'imageStyle' ) as string | undefined;\n\n\t\t\t\t\tif ( !imageStyle ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst imageStyleDefinition = stylesMap.get( imageStyle );\n\n\t\t\t\t\tif ( !imageStyleDefinition || !imageStyleDefinition.modelElements.includes( ( element as Element ).name ) ) {\n\t\t\t\t\t\twriter.removeAttribute( 'imageStyle', element );\n\t\t\t\t\t\tchanged = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn changed;\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imagestyle.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle/imagestyleui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView, createDropdown, addToolbarToDropdown, SplitButtonView } from 'ckeditor5/src/ui';\nimport { isObject, identity } from 'lodash-es';\nimport ImageStyleEditing from './imagestyleediting';\nimport utils from './utils';\nimport type { ImageStyleDropdownDefinition, ImageStyleOptionDefinition } from '../imageconfig';\nimport type ImageStyleCommand from './imagestylecommand';\n\nimport '../../theme/imagestyle.css';\n\n/**\n * The image style UI plugin.\n *\n * It registers buttons corresponding to the {@link module:image/imageconfig~ImageConfig#styles} configuration.\n * It also registers the {@link module:image/imagestyle/utils#DEFAULT_DROPDOWN_DEFINITIONS default drop-downs} and the\n * custom drop-downs defined by the developer in the {@link module:image/imageconfig~ImageConfig#toolbar} configuration.\n */\nexport default class ImageStyleUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageStyleEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageStyleUI' {\n\t\treturn 'ImageStyleUI';\n\t}\n\n\t/**\n\t * Returns the default localized style titles provided by the plugin.\n\t *\n\t * The following localized titles corresponding with\n\t * {@link module:image/imagestyle/utils#DEFAULT_OPTIONS} are available:\n\t *\n\t * * `'Wrap text'`,\n\t * * `'Break text'`,\n\t * * `'In line'`,\n\t * * `'Full size image'`,\n\t * * `'Side image'`,\n\t * * `'Left aligned image'`,\n\t * * `'Centered image'`,\n\t * * `'Right aligned image'`\n\t */\n\tpublic get localizedDefaultStylesTitles(): Record<string, string> {\n\t\tconst t = this.editor.t;\n\n\t\treturn {\n\t\t\t'Wrap text': t( 'Wrap text' ),\n\t\t\t'Break text': t( 'Break text' ),\n\t\t\t'In line': t( 'In line' ),\n\t\t\t'Full size image': t( 'Full size image' ),\n\t\t\t'Side image': t( 'Side image' ),\n\t\t\t'Left aligned image': t( 'Left aligned image' ),\n\t\t\t'Centered image': t( 'Centered image' ),\n\t\t\t'Right aligned image': t( 'Right aligned image' )\n\t\t};\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst plugins = this.editor.plugins;\n\t\tconst toolbarConfig = this.editor.config.get( 'image.toolbar' ) || [];\n\t\tconst imageStyleEditing: ImageStyleEditing = plugins.get( 'ImageStyleEditing' );\n\n\t\tconst definedStyles = translateStyles(\n\t\t\timageStyleEditing.normalizedStyles!,\n\t\t\tthis.localizedDefaultStylesTitles\n\t\t);\n\n\t\tfor ( const styleConfig of definedStyles ) {\n\t\t\tthis._createButton( styleConfig );\n\t\t}\n\n\t\tconst definedDropdowns = translateStyles(\n\t\t\t[\n\t\t\t\t...toolbarConfig.filter( isObject ) as Array<ImageStyleDropdownDefinition>,\n\t\t\t\t...utils.getDefaultDropdownDefinitions( plugins )\n\t\t\t],\n\t\t\tthis.localizedDefaultStylesTitles\n\t\t);\n\n\t\tfor ( const dropdownConfig of definedDropdowns ) {\n\t\t\tthis._createDropdown( dropdownConfig, definedStyles );\n\t\t}\n\t}\n\n\t/**\n\t * Creates a dropdown and stores it in the editor {@link module:ui/componentfactory~ComponentFactory}.\n\t */\n\tprivate _createDropdown( dropdownConfig: ImageStyleDropdownDefinition, definedStyles: Array<ImageStyleOptionDefinition> ): void {\n\t\tconst factory = this.editor.ui.componentFactory;\n\n\t\tfactory.add( dropdownConfig.name, locale => {\n\t\t\tlet defaultButton: ButtonView | undefined;\n\n\t\t\tconst { defaultItem, items, title } = dropdownConfig;\n\t\t\tconst buttonViews = items\n\t\t\t\t.filter( itemName => definedStyles.find( ( { name } ) => getUIComponentName( name ) === itemName ) )\n\t\t\t\t.map( buttonName => {\n\t\t\t\t\tconst button = factory.create( buttonName ) as ButtonView;\n\n\t\t\t\t\tif ( buttonName === defaultItem ) {\n\t\t\t\t\t\tdefaultButton = button;\n\t\t\t\t\t}\n\n\t\t\t\t\treturn button;\n\t\t\t\t} );\n\n\t\t\tif ( items.length !== buttonViews.length ) {\n\t\t\t\tutils.warnInvalidStyle( { dropdown: dropdownConfig } );\n\t\t\t}\n\n\t\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\t\tconst splitButtonView = dropdownView.buttonView as SplitButtonView;\n\t\t\tconst splitButtonViewArrow = splitButtonView.arrowView;\n\n\t\t\taddToolbarToDropdown( dropdownView, buttonViews, { enableActiveItemFocusOnDropdownOpen: true } );\n\n\t\t\tsplitButtonView.set( {\n\t\t\t\tlabel: getDropdownButtonTitle( title, defaultButton!.label! ),\n\t\t\t\tclass: null,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tsplitButtonViewArrow.unbind( 'label' );\n\t\t\tsplitButtonViewArrow.set( {\n\t\t\t\tlabel: title\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'icon' ).toMany( buttonViews, 'isOn', ( ...areOn ) => {\n\t\t\t\tconst index = areOn.findIndex( identity );\n\n\t\t\t\treturn ( index < 0 ) ? defaultButton!.icon : buttonViews[ index ].icon;\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'label' ).toMany( buttonViews, 'isOn', ( ...areOn ) => {\n\t\t\t\tconst index = areOn.findIndex( identity );\n\n\t\t\t\treturn getDropdownButtonTitle( title, ( index < 0 ) ? defaultButton!.label! : buttonViews[ index ].label! );\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'isOn' ).toMany( buttonViews, 'isOn', ( ...areOn ) => areOn.some( identity ) );\n\n\t\t\tsplitButtonView.bind( 'class' )\n\t\t\t\t.toMany( buttonViews, 'isOn', ( ...areOn ) => areOn.some( identity ) ? 'ck-splitbutton_flatten' : undefined );\n\n\t\t\tsplitButtonView.on( 'execute', () => {\n\t\t\t\tif ( !buttonViews.some( ( { isOn } ) => isOn ) ) {\n\t\t\t\t\tdefaultButton!.fire( 'execute' );\n\t\t\t\t} else {\n\t\t\t\t\tdropdownView.isOpen = !dropdownView.isOpen;\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' )\n\t\t\t\t.toMany( buttonViews, 'isEnabled', ( ...areEnabled ) => areEnabled.some( identity ) );\n\n\t\t\t// Focus the editable after executing the command.\n\t\t\t// Overrides a default behaviour where the focus is moved to the dropdown button (#12125).\n\t\t\tthis.listenTo( dropdownView, 'execute', () => {\n\t\t\t\tthis.editor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * Creates a button and stores it in the editor {@link module:ui/componentfactory~ComponentFactory}.\n\t */\n\tprivate _createButton( buttonConfig: ImageStyleOptionDefinition ): void {\n\t\tconst buttonName = buttonConfig.name;\n\n\t\tthis.editor.ui.componentFactory.add( getUIComponentName( buttonName ), locale => {\n\t\t\tconst command: ImageStyleCommand = this.editor.commands.get( 'imageStyle' )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: buttonConfig.title,\n\t\t\t\ticon: buttonConfig.icon,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\t\t\tview.bind( 'isOn' ).to( command, 'value', value => value === buttonName );\n\t\t\tview.on( 'execute', this._executeCommand.bind( this, buttonName ) );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\tprivate _executeCommand( name: string ): void {\n\t\tthis.editor.execute( 'imageStyle', { value: name } );\n\t\tthis.editor.editing.view.focus();\n\t}\n}\n\n/**\n * Returns the translated `title` from the passed styles array.\n */\nfunction translateStyles<T extends ImageStyleOptionDefinition | ImageStyleDropdownDefinition>(\n\tstyles: Array<T>,\n\ttitles: Record<string, string>\n): Array<T> {\n\tfor ( const style of styles ) {\n\t\t// Localize the titles of the styles, if a title corresponds with\n\t\t// a localized default provided by the plugin.\n\t\tif ( titles[ style.title! ] ) {\n\t\t\tstyle.title = titles[ style.title! ];\n\t\t}\n\t}\n\n\treturn styles;\n}\n\n/**\n * Returns the image style component name with the \"imageStyle:\" prefix.\n */\nfunction getUIComponentName( name: string ): string {\n\treturn `imageStyle:${ name }`;\n}\n\n/**\n * Returns title for the splitbutton containing the dropdown title and default action item title.\n */\nfunction getDropdownButtonTitle( dropdownTitle: string | undefined, buttonTitle: string ): string {\n\treturn ( dropdownTitle ? dropdownTitle + ': ' : '' ) + buttonTitle;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/utils\n */\n\n/* global fetch, File */\n\nimport type { ViewElement } from 'ckeditor5/src/engine';\nimport { global } from 'ckeditor5/src/utils';\nimport type ImageUtils from '../imageutils';\n\n/**\n * Creates a regular expression used to test for image files.\n *\n * ```ts\n * const imageType = createImageTypeRegExp( [ 'png', 'jpeg', 'svg+xml', 'vnd.microsoft.icon' ] );\n *\n * console.log( 'is supported image', imageType.test( file.type ) );\n * ```\n */\nexport function createImageTypeRegExp( types: Array<string> ): RegExp {\n\t// Sanitize the MIME type name which may include: \"+\", \"-\" or \".\".\n\tconst regExpSafeNames = types.map( type => type.replace( '+', '\\\\+' ) );\n\n\treturn new RegExp( `^image\\\\/(${ regExpSafeNames.join( '|' ) })$` );\n}\n\n/**\n * Creates a promise that fetches the image local source (Base64 or blob) and resolves with a `File` object.\n *\n * @param image Image whose source to fetch.\n * @returns A promise which resolves when an image source is fetched and converted to a `File` instance.\n * It resolves with a `File` object. If there were any errors during file processing, the promise will be rejected.\n */\nexport function fetchLocalImage( image: ViewElement ): Promise<File> {\n\treturn new Promise( ( resolve, reject ) => {\n\t\tconst imageSrc = image.getAttribute( 'src' )!;\n\n\t\t// Fetch works asynchronously and so does not block browser UI when processing data.\n\t\tfetch( imageSrc )\n\t\t\t.then( resource => resource.blob() )\n\t\t\t.then( blob => {\n\t\t\t\tconst mimeType = getImageMimeType( blob, imageSrc );\n\t\t\t\tconst ext = mimeType.replace( 'image/', '' );\n\t\t\t\tconst filename = `image.${ ext }`;\n\t\t\t\tconst file = new File( [ blob ], filename, { type: mimeType } );\n\n\t\t\t\tresolve( file );\n\t\t\t} )\n\t\t\t.catch( err => {\n\t\t\t\t// Fetch fails only, if it can't make a request due to a network failure or if anything prevented the request\n\t\t\t\t// from completing, i.e. the Content Security Policy rules. It is not possible to detect the exact cause of failure,\n\t\t\t\t// so we are just trying the fallback solution, if general TypeError is thrown.\n\t\t\t\treturn err && err.name === 'TypeError' ?\n\t\t\t\t\tconvertLocalImageOnCanvas( imageSrc ).then( resolve ).catch( reject ) :\n\t\t\t\t\treject( err );\n\t\t\t} );\n\t} );\n}\n\n/**\n * Checks whether a given node is an image element with a local source (Base64 or blob).\n *\n * @param node The node to check.\n */\nexport function isLocalImage( imageUtils: ImageUtils, node: ViewElement ): boolean {\n\tif ( !imageUtils.isInlineImageView( node ) || !node.getAttribute( 'src' ) ) {\n\t\treturn false;\n\t}\n\n\treturn !!node.getAttribute( 'src' )!.match( /^data:image\\/\\w+;base64,/g ) ||\n\t\t!!node.getAttribute( 'src' )!.match( /^blob:/g );\n}\n\n/**\n * Extracts an image type based on its blob representation or its source.\n * @param blob Image blob representation.\n * @param src Image `src` attribute value.\n */\nfunction getImageMimeType( blob: Blob, src: string ): string {\n\tif ( blob.type ) {\n\t\treturn blob.type;\n\t} else if ( src.match( /data:(image\\/\\w+);base64/ ) ) {\n\t\treturn src.match( /data:(image\\/\\w+);base64/ )![ 1 ].toLowerCase();\n\t} else {\n\t\t// Fallback to 'jpeg' as common extension.\n\t\treturn 'image/jpeg';\n\t}\n}\n\n/**\n * Creates a promise that converts the image local source (Base64 or blob) to a blob using canvas and resolves\n * with a `File` object.\n * @param imageSrc Image `src` attribute value.\n * @returns A promise which resolves when an image source is converted to a `File` instance.\n * It resolves with a `File` object. If there were any errors during file processing, the promise will be rejected.\n */\nfunction convertLocalImageOnCanvas( imageSrc: string ): Promise<File> {\n\treturn getBlobFromCanvas( imageSrc ).then( blob => {\n\t\tconst mimeType = getImageMimeType( blob, imageSrc );\n\t\tconst ext = mimeType.replace( 'image/', '' );\n\t\tconst filename = `image.${ ext }`;\n\n\t\treturn new File( [ blob ], filename, { type: mimeType } );\n\t} );\n}\n\n/**\n * Creates a promise that resolves with a `Blob` object converted from the image source (Base64 or blob).\n * @param imageSrc Image `src` attribute value.\n */\nfunction getBlobFromCanvas( imageSrc: string ): Promise<Blob> {\n\treturn new Promise( ( resolve, reject ) => {\n\t\tconst image = global.document.createElement( 'img' );\n\n\t\timage.addEventListener( 'load', () => {\n\t\t\tconst canvas = global.document.createElement( 'canvas' );\n\n\t\t\tcanvas.width = image.width;\n\t\t\tcanvas.height = image.height;\n\n\t\t\tconst ctx = canvas.getContext( '2d' )!;\n\n\t\t\tctx.drawImage( image, 0, 0 );\n\n\t\t\tcanvas.toBlob( blob => blob ? resolve( blob ) : reject() );\n\t\t} );\n\n\t\timage.addEventListener( 'error', () => reject() );\n\n\t\timage.src = imageSrc;\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/imageuploadui\n */\n\nimport type { Locale } from 'ckeditor5/src/utils';\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { FileDialogButtonView } from 'ckeditor5/src/upload';\nimport { createImageTypeRegExp } from './utils';\nimport type UploadImageCommand from './uploadimagecommand';\n\n/**\n * The image upload button plugin.\n *\n * For a detailed overview, check the {@glink features/images/image-upload/image-upload Image upload feature} documentation.\n *\n * Adds the `'uploadImage'` button to the {@link module:ui/componentfactory~ComponentFactory UI component factory}\n * and also the `imageUpload` button as an alias for backward compatibility.\n */\nexport default class ImageUploadUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageUploadUI' {\n\t\treturn 'ImageUploadUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst componentCreator = ( locale: Locale ) => {\n\t\t\tconst view = new FileDialogButtonView( locale );\n\t\t\tconst command: UploadImageCommand = editor.commands.get( 'uploadImage' )!;\n\t\t\tconst imageTypes = editor.config.get( 'image.upload.types' )!;\n\t\t\tconst imageTypesRegExp = createImageTypeRegExp( imageTypes );\n\n\t\t\tview.set( {\n\t\t\t\tacceptedType: imageTypes.map( type => `image/${ type }` ).join( ',' ),\n\t\t\t\tallowMultipleFiles: true\n\t\t\t} );\n\n\t\t\tview.buttonView.set( {\n\t\t\t\tlabel: t( 'Insert image' ),\n\t\t\t\ticon: icons.image,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.buttonView.bind( 'isEnabled' ).to( command );\n\n\t\t\tview.on( 'done', ( evt, files: FileList ) => {\n\t\t\t\tconst imagesToUpload = Array.from( files ).filter( file => imageTypesRegExp.test( file.type ) );\n\n\t\t\t\tif ( imagesToUpload.length ) {\n\t\t\t\t\teditor.execute( 'uploadImage', { file: imagesToUpload } );\n\n\t\t\t\t\teditor.editing.view.focus();\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t};\n\n\t\t// Setup `uploadImage` button and add `imageUpload` button as an alias for backward compatibility.\n\t\teditor.ui.componentFactory.add( 'uploadImage', componentCreator );\n\t\teditor.ui.componentFactory.add( 'imageUpload', componentCreator );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageuploadprogress.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageuploadicon.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageuploadloader.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/imageuploadprogress\n */\n\n/* globals setTimeout */\n\nimport { type Editor, Plugin } from 'ckeditor5/src/core';\nimport { FileRepository, type FileLoader } from 'ckeditor5/src/upload';\n\nimport '../../theme/imageuploadprogress.css';\nimport '../../theme/imageuploadicon.css';\nimport '../../theme/imageuploadloader.css';\nimport type { GetCallback } from 'ckeditor5/src/utils';\nimport type {\n\tDowncastWriter,\n\tView,\n\tViewElement,\n\tViewContainerElement,\n\tViewUIElement,\n\tDowncastAttributeEvent,\n\tElement\n} from 'ckeditor5/src/engine';\nimport type ImageUtils from '../imageutils';\n\n/**\n * The image upload progress plugin.\n * It shows a placeholder when the image is read from the disk and a progress bar while the image is uploading.\n */\nexport default class ImageUploadProgress extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageUploadProgress' {\n\t\treturn 'ImageUploadProgress';\n\t}\n\n\t/**\n\t * The image placeholder that is displayed before real image data can be accessed.\n\t *\n\t * For the record, this image is a 1x1 px GIF with an aspect ratio set by CSS.\n\t */\n\tprivate placeholder: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis.placeholder = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Upload status change - update image's view according to that status.\n\t\tif ( editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\teditor.editing.downcastDispatcher.on<DowncastAttributeEvent>(\n\t\t\t\t'attribute:uploadStatus:imageBlock',\n\t\t\t\tthis.uploadStatusChange\n\t\t\t);\n\t\t}\n\n\t\tif ( editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\teditor.editing.downcastDispatcher.on<DowncastAttributeEvent>(\n\t\t\t\t'attribute:uploadStatus:imageInline',\n\t\t\t\tthis.uploadStatusChange\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * This method is called each time the image `uploadStatus` attribute is changed.\n\t *\n\t * @param evt An object containing information about the fired event.\n\t * @param data Additional information about the change.\n\t */\n\tprivate uploadStatusChange: GetCallback<DowncastAttributeEvent> = ( evt, data, conversionApi ) => {\n\t\tconst editor = this.editor;\n\t\tconst modelImage = data.item as Element;\n\t\tconst uploadId = modelImage.getAttribute( 'uploadId' ) as string | number;\n\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst status = uploadId ? data.attributeNewValue : null;\n\t\tconst placeholder = this.placeholder;\n\t\tconst viewFigure = editor.editing.mapper.toViewElement( modelImage )! as ViewContainerElement;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\tif ( status == 'reading' ) {\n\t\t\t// Start \"appearing\" effect and show placeholder with infinite progress bar on the top\n\t\t\t// while image is read from disk.\n\t\t\t_startAppearEffect( viewFigure, viewWriter );\n\t\t\t_showPlaceholder( imageUtils, placeholder, viewFigure, viewWriter );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Show progress bar on the top of the image when image is uploading.\n\t\tif ( status == 'uploading' ) {\n\t\t\tconst loader = fileRepository.loaders.get( uploadId );\n\n\t\t\t// Start appear effect if needed - see https://github.com/ckeditor/ckeditor5-image/issues/191.\n\t\t\t_startAppearEffect( viewFigure, viewWriter );\n\n\t\t\tif ( !loader ) {\n\t\t\t\t// There is no loader associated with uploadId - this means that image came from external changes.\n\t\t\t\t// In such cases we still want to show the placeholder until image is fully uploaded.\n\t\t\t\t// Show placeholder if needed - see https://github.com/ckeditor/ckeditor5-image/issues/191.\n\t\t\t\t_showPlaceholder( imageUtils, placeholder, viewFigure, viewWriter );\n\t\t\t} else {\n\t\t\t\t// Hide placeholder and initialize progress bar showing upload progress.\n\t\t\t\t_hidePlaceholder( viewFigure, viewWriter );\n\t\t\t\t_showProgressBar( viewFigure, viewWriter, loader, editor.editing.view );\n\t\t\t\t_displayLocalImage( imageUtils, viewFigure!, viewWriter, loader );\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\tif ( status == 'complete' && fileRepository.loaders.get( uploadId ) ) {\n\t\t\t_showCompleteIcon( viewFigure, viewWriter, editor.editing.view );\n\t\t}\n\n\t\t// Clean up.\n\t\t_hideProgressBar( viewFigure, viewWriter );\n\t\t_hidePlaceholder( viewFigure, viewWriter );\n\t\t_stopAppearEffect( viewFigure, viewWriter );\n\t};\n}\n\n/**\n * Adds ck-appear class to the image figure if one is not already applied.\n */\nfunction _startAppearEffect( viewFigure: ViewContainerElement, writer: DowncastWriter ) {\n\tif ( !viewFigure.hasClass( 'ck-appear' ) ) {\n\t\twriter.addClass( 'ck-appear', viewFigure );\n\t}\n}\n\n/**\n * Removes ck-appear class to the image figure if one is not already removed.\n */\nfunction _stopAppearEffect( viewFigure: ViewContainerElement, writer: DowncastWriter ) {\n\twriter.removeClass( 'ck-appear', viewFigure );\n}\n\n/**\n * Shows placeholder together with infinite progress bar on given image figure.\n */\nfunction _showPlaceholder( imageUtils: ImageUtils, placeholder: string, viewFigure: ViewContainerElement, writer: DowncastWriter ) {\n\tif ( !viewFigure.hasClass( 'ck-image-upload-placeholder' ) ) {\n\t\twriter.addClass( 'ck-image-upload-placeholder', viewFigure );\n\t}\n\n\tconst viewImg = imageUtils.findViewImgElement( viewFigure )!;\n\n\tif ( viewImg.getAttribute( 'src' ) !== placeholder ) {\n\t\twriter.setAttribute( 'src', placeholder, viewImg );\n\t}\n\n\tif ( !_getUIElement( viewFigure, 'placeholder' ) ) {\n\t\twriter.insert( writer.createPositionAfter( viewImg ), _createPlaceholder( writer ) );\n\t}\n}\n\n/**\n * Removes placeholder together with infinite progress bar on given image figure.\n */\nfunction _hidePlaceholder( viewFigure: ViewContainerElement, writer: DowncastWriter ) {\n\tif ( viewFigure.hasClass( 'ck-image-upload-placeholder' ) ) {\n\t\twriter.removeClass( 'ck-image-upload-placeholder', viewFigure );\n\t}\n\n\t_removeUIElement( viewFigure, writer, 'placeholder' );\n}\n\n/**\n * Shows progress bar displaying upload progress.\n * Attaches it to the file loader to update when upload percentace is changed.\n */\nfunction _showProgressBar( viewFigure: ViewContainerElement, writer: DowncastWriter, loader: FileLoader, view: View ) {\n\tconst progressBar = _createProgressBar( writer );\n\twriter.insert( writer.createPositionAt( viewFigure, 'end' ), progressBar );\n\n\t// Update progress bar width when uploadedPercent is changed.\n\tloader.on( 'change:uploadedPercent', ( evt, name, value ) => {\n\t\tview.change( writer => {\n\t\t\twriter.setStyle( 'width', value + '%', progressBar );\n\t\t} );\n\t} );\n}\n\n/**\n * Hides upload progress bar.\n */\nfunction _hideProgressBar( viewFigure: ViewContainerElement, writer: DowncastWriter ) {\n\t_removeUIElement( viewFigure, writer, 'progressBar' );\n}\n\n/**\n * Shows complete icon and hides after a certain amount of time.\n */\nfunction _showCompleteIcon( viewFigure: ViewContainerElement, writer: DowncastWriter, view: View ) {\n\tconst completeIcon = writer.createUIElement( 'div', { class: 'ck-image-upload-complete-icon' } );\n\n\twriter.insert( writer.createPositionAt( viewFigure, 'end' ), completeIcon );\n\n\tsetTimeout( () => {\n\t\tview.change( writer => writer.remove( writer.createRangeOn( completeIcon ) ) );\n\t}, 3000 );\n}\n\n/**\n * Create progress bar element using {@link module:engine/view/uielement~UIElement}.\n */\nfunction _createProgressBar( writer: DowncastWriter ): ViewUIElement {\n\tconst progressBar = writer.createUIElement( 'div', { class: 'ck-progress-bar' } );\n\n\twriter.setCustomProperty( 'progressBar', true, progressBar );\n\n\treturn progressBar;\n}\n\n/**\n * Create placeholder element using {@link module:engine/view/uielement~UIElement}.\n */\nfunction _createPlaceholder( writer: DowncastWriter ): ViewUIElement {\n\tconst placeholder = writer.createUIElement( 'div', { class: 'ck-upload-placeholder-loader' } );\n\n\twriter.setCustomProperty( 'placeholder', true, placeholder );\n\n\treturn placeholder;\n}\n\n/**\n * Returns {@link module:engine/view/uielement~UIElement} of given unique property from image figure element.\n * Returns `undefined` if element is not found.\n */\nfunction _getUIElement( imageFigure: ViewElement, uniqueProperty: string ): ViewUIElement | undefined {\n\tfor ( const child of imageFigure.getChildren() ) {\n\t\tif ( ( child as ViewElement ).getCustomProperty( uniqueProperty ) ) {\n\t\t\treturn child as ViewUIElement;\n\t\t}\n\t}\n}\n\n/**\n * Removes {@link module:engine/view/uielement~UIElement} of given unique property from image figure element.\n */\nfunction _removeUIElement( viewFigure: ViewContainerElement, writer: DowncastWriter, uniqueProperty: string ) {\n\tconst element = _getUIElement( viewFigure, uniqueProperty );\n\n\tif ( element ) {\n\t\twriter.remove( writer.createRangeOn( element ) );\n\t}\n}\n\n/**\n * Displays local data from file loader.\n */\nfunction _displayLocalImage( imageUtils: ImageUtils, viewFigure: ViewElement, writer: DowncastWriter, loader: FileLoader ) {\n\tif ( loader.data ) {\n\t\tconst viewImg = imageUtils.findViewImgElement( viewFigure )!;\n\n\t\twriter.setAttribute( 'src', loader.data, viewImg );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport { FileRepository } from 'ckeditor5/src/upload';\nimport { Command } from 'ckeditor5/src/core';\nimport { toArray, type ArrayOrItem } from 'ckeditor5/src/utils';\nimport type { Position } from 'ckeditor5/src/engine';\n\nimport type ImageUtils from '../imageutils';\n\n/**\n * @module image/imageupload/uploadimagecommand\n */\n\n/**\n * The upload image command.\n *\n * The command is registered by the {@link module:image/imageupload/imageuploadediting~ImageUploadEditing} plugin as `uploadImage`\n * and it is also available via aliased `imageUpload` name.\n *\n * In order to upload an image at the current selection position\n * (according to the {@link module:widget/utils~findOptimalInsertionRange} algorithm),\n * execute the command and pass the native image file instance:\n *\n * ```ts\n * this.listenTo( editor.editing.view.document, 'clipboardInput', ( evt, data ) => {\n * \t// Assuming that only images were pasted:\n * \tconst images = Array.from( data.dataTransfer.files );\n *\n * \t// Upload the first image:\n * \teditor.execute( 'uploadImage', { file: images[ 0 ] } );\n * } );\n * ```\n *\n * It is also possible to insert multiple images at once:\n *\n * ```ts\n * editor.execute( 'uploadImage', {\n * \tfile: [\n * \t\tfile1,\n * \t\tfile2\n * \t]\n * } );\n * ```\n */\nexport default class UploadImageCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst selectedElement = editor.model.document.selection.getSelectedElement()!;\n\n\t\t// TODO: This needs refactoring.\n\t\tthis.isEnabled = imageUtils.isImageAllowed() || imageUtils.isImage( selectedElement );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options Options for the executed command.\n\t * @param options.file The image file or an array of image files to upload.\n\t */\n\tpublic override execute( options: { file: ArrayOrItem<File> } ): void {\n\t\tconst files = toArray( options.file );\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst imageUtils: ImageUtils = this.editor.plugins.get( 'ImageUtils' );\n\n\t\t// In case of multiple files, each file (starting from the 2nd) will be inserted at a position that\n\t\t// follows the previous one. That will move the selection and, to stay on the safe side and make sure\n\t\t// all images inherit the same selection attributes, they are collected beforehand.\n\t\t//\n\t\t// Applying these attributes ensures, for instance, that inserting an (inline) image into a link does\n\t\t// not split that link but preserves its continuity.\n\t\t//\n\t\t// Note: Selection attributes that do not make sense for images will be filtered out by insertImage() anyway.\n\t\tconst selectionAttributes = Object.fromEntries( selection.getAttributes() );\n\n\t\tfiles.forEach( ( file, index ) => {\n\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\t// Inserting of an inline image replace the selected element and make a selection on the inserted image.\n\t\t\t// Therefore inserting multiple inline images requires creating position after each element.\n\t\t\tif ( index && selectedElement && imageUtils.isImage( selectedElement ) ) {\n\t\t\t\tconst position = this.editor.model.createPositionAfter( selectedElement );\n\n\t\t\t\tthis._uploadImage( file, selectionAttributes, position );\n\t\t\t} else {\n\t\t\t\tthis._uploadImage( file, selectionAttributes );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Handles uploading single file.\n\t */\n\tprivate _uploadImage( file: File, attributes: object, position?: Position ): void {\n\t\tconst editor = this.editor;\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst loader = fileRepository.createLoader( file );\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\t// Do not throw when upload adapter is not set. FileRepository will log an error anyway.\n\t\tif ( !loader ) {\n\t\t\treturn;\n\t\t}\n\n\t\timageUtils.insertImage( { ...attributes, uploadId: loader.id }, position );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload/imageuploadediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\n\nimport { UpcastWriter, type Element, type Item, type Writer, type DataTransfer, type ViewElement } from 'ckeditor5/src/engine';\n\nimport { Notification } from 'ckeditor5/src/ui';\nimport { ClipboardPipeline, type ViewDocumentClipboardInputEvent } from 'ckeditor5/src/clipboard';\nimport { FileRepository, type UploadResponse, type FileLoader } from 'ckeditor5/src/upload';\nimport { env } from 'ckeditor5/src/utils';\n\nimport ImageUtils from '../imageutils';\nimport UploadImageCommand from './uploadimagecommand';\nimport { fetchLocalImage, isLocalImage } from '../../src/imageupload/utils';\nimport { createImageTypeRegExp } from './utils';\n\n/**\n * The editing part of the image upload feature. It registers the `'uploadImage'` command\n * and the `imageUpload` command as an aliased name.\n *\n * When an image is uploaded, it fires the {@link ~ImageUploadEditing#event:uploadComplete `uploadComplete`} event\n * that allows adding custom attributes to the {@link module:engine/model/element~Element image element}.\n */\nexport default class ImageUploadEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FileRepository, Notification, ClipboardPipeline, ImageUtils ] as const;\n\t}\n\n\tpublic static get pluginName(): 'ImageUploadEditing' {\n\t\treturn 'ImageUploadEditing';\n\t}\n\n\t/**\n\t * An internal mapping of {@link module:upload/filerepository~FileLoader#id file loader UIDs} and\n\t * model elements during the upload.\n\t *\n\t * Model element of the uploaded image can change, for instance, when {@link module:image/image/imagetypecommand~ImageTypeCommand}\n\t * is executed as a result of adding caption or changing image style. As a result, the upload logic must keep track of the model\n\t * element (reference) and resolve the upload for the correct model element (instead of the one that landed in the `$graveyard`\n\t * after image type changed).\n\t */\n\tprivate readonly _uploadImageElements: Map<string, Element>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'image', {\n\t\t\tupload: {\n\t\t\t\ttypes: [ 'jpeg', 'png', 'gif', 'bmp', 'webp', 'tiff' ]\n\t\t\t}\n\t\t} );\n\n\t\tthis._uploadImageElements = new Map();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst doc = editor.model.document;\n\t\tconst conversion = editor.conversion;\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst clipboardPipeline: ClipboardPipeline = editor.plugins.get( 'ClipboardPipeline' );\n\t\tconst imageTypes = createImageTypeRegExp( editor.config.get( 'image.upload.types' )! );\n\t\tconst uploadImageCommand = new UploadImageCommand( editor );\n\n\t\t// Register `uploadImage` command and add `imageUpload` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'uploadImage', uploadImageCommand );\n\t\teditor.commands.add( 'imageUpload', uploadImageCommand );\n\n\t\t// Register upcast converter for uploadId.\n\t\tconversion.for( 'upcast' )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'img',\n\t\t\t\t\tkey: 'uploadId'\n\t\t\t\t},\n\t\t\t\tmodel: 'uploadId'\n\t\t\t} );\n\n\t\t// Handle pasted images.\n\t\t// For every image file, a new file loader is created and a placeholder image is\n\t\t// inserted into the content. Then, those images are uploaded once they appear in the model\n\t\t// (see Document#change listener below).\n\t\tthis.listenTo<ViewDocumentClipboardInputEvent>( editor.editing.view.document, 'clipboardInput', ( evt, data ) => {\n\t\t\t// Skip if non empty HTML data is included.\n\t\t\t// https://github.com/ckeditor/ckeditor5-upload/issues/68\n\t\t\tif ( isHtmlIncluded( data.dataTransfer ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst images = Array.from( data.dataTransfer.files ).filter( file => {\n\t\t\t\t// See https://github.com/ckeditor/ckeditor5-image/pull/254.\n\t\t\t\tif ( !file ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\treturn imageTypes.test( file.type );\n\t\t\t} );\n\n\t\t\tif ( !images.length ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\teditor.model.change( writer => {\n\t\t\t\t// Set selection to paste target.\n\t\t\t\tif ( data.targetRanges ) {\n\t\t\t\t\twriter.setSelection( data.targetRanges.map( viewRange => editor.editing.mapper.toModelRange( viewRange ) ) );\n\t\t\t\t}\n\n\t\t\t\t// Upload images after the selection has changed in order to ensure the command's state is refreshed.\n\t\t\t\teditor.model.enqueueChange( () => {\n\t\t\t\t\teditor.execute( 'uploadImage', { file: images } );\n\t\t\t\t} );\n\t\t\t} );\n\t\t} );\n\n\t\t// Handle HTML pasted with images with base64 or blob sources.\n\t\t// For every image file, a new file loader is created and a placeholder image is\n\t\t// inserted into the content. Then, those images are uploaded once they appear in the model\n\t\t// (see Document#change listener below).\n\t\tthis.listenTo( clipboardPipeline, 'inputTransformation', ( evt, data ) => {\n\t\t\tconst fetchableImages = Array.from( editor.editing.view.createRangeIn( data.content ) )\n\t\t\t\t.map( value => value.item as ViewElement )\n\t\t\t\t.filter( viewElement =>\n\t\t\t\t\tisLocalImage( imageUtils, viewElement ) &&\n\t\t\t\t\t!viewElement.getAttribute( 'uploadProcessed' ) )\n\t\t\t\t.map( viewElement => { return { promise: fetchLocalImage( viewElement ), imageElement: viewElement }; } );\n\n\t\t\tif ( !fetchableImages.length ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst writer = new UpcastWriter( editor.editing.view.document );\n\n\t\t\tfor ( const fetchableImage of fetchableImages ) {\n\t\t\t\t// Set attribute marking that the image was processed already.\n\t\t\t\twriter.setAttribute( 'uploadProcessed', true, fetchableImage.imageElement );\n\n\t\t\t\tconst loader = fileRepository.createLoader( fetchableImage.promise );\n\n\t\t\t\tif ( loader ) {\n\t\t\t\t\twriter.setAttribute( 'src', '', fetchableImage.imageElement );\n\t\t\t\t\twriter.setAttribute( 'uploadId', loader.id, fetchableImage.imageElement );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Prevents from the browser redirecting to the dropped image.\n\t\teditor.editing.view.document.on( 'dragover', ( evt, data ) => {\n\t\t\tdata.preventDefault();\n\t\t} );\n\n\t\t// Upload placeholder images that appeared in the model.\n\t\tdoc.on( 'change', () => {\n\t\t\t// Note: Reversing changes to start with insertions and only then handle removals. If it was the other way around,\n\t\t\t// loaders for **all** images that land in the $graveyard would abort while in fact only those that were **not** replaced\n\t\t\t// by other images should be aborted.\n\t\t\tconst changes = doc.differ.getChanges( { includeChangesInGraveyard: true } ).reverse();\n\t\t\tconst insertedImagesIds = new Set();\n\n\t\t\tfor ( const entry of changes ) {\n\t\t\t\tif ( entry.type == 'insert' && entry.name != '$text' ) {\n\t\t\t\t\tconst item = entry.position.nodeAfter!;\n\t\t\t\t\tconst isInsertedInGraveyard = entry.position.root.rootName == '$graveyard';\n\n\t\t\t\t\tfor ( const imageElement of getImagesFromChangeItem( editor, item ) ) {\n\t\t\t\t\t\t// Check if the image element still has upload id.\n\t\t\t\t\t\tconst uploadId = imageElement.getAttribute( 'uploadId' ) as string;\n\n\t\t\t\t\t\tif ( !uploadId ) {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Check if the image is loaded on this client.\n\t\t\t\t\t\tconst loader = fileRepository.loaders.get( uploadId );\n\n\t\t\t\t\t\tif ( !loader ) {\n\t\t\t\t\t\t\tcontinue;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( isInsertedInGraveyard ) {\n\t\t\t\t\t\t\t// If the image was inserted to the graveyard for good (**not** replaced by another image),\n\t\t\t\t\t\t\t// only then abort the loading process.\n\t\t\t\t\t\t\tif ( !insertedImagesIds.has( uploadId ) ) {\n\t\t\t\t\t\t\t\tloader.abort();\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t// Remember the upload id of the inserted image. If it acted as a replacement for another\n\t\t\t\t\t\t\t// image (which landed in the $graveyard), the related loader will not be aborted because\n\t\t\t\t\t\t\t// this is still the same image upload.\n\t\t\t\t\t\t\tinsertedImagesIds.add( uploadId );\n\n\t\t\t\t\t\t\t// Keep the mapping between the upload ID and the image model element so the upload\n\t\t\t\t\t\t\t// can later resolve in the context of the correct model element. The model element could\n\t\t\t\t\t\t\t// change for the same upload if one image was replaced by another (e.g. image type was changed),\n\t\t\t\t\t\t\t// so this may also replace an existing mapping.\n\t\t\t\t\t\t\tthis._uploadImageElements.set( uploadId, imageElement as Element );\n\n\t\t\t\t\t\t\tif ( loader.status == 'idle' ) {\n\t\t\t\t\t\t\t\t// If the image was inserted into content and has not been loaded yet, start loading it.\n\t\t\t\t\t\t\t\tthis._readAndUpload( loader );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Set the default handler for feeding the image element with `src` and `srcset` attributes.\n\t\tthis.on<ImageUploadCompleteEvent>( 'uploadComplete', ( evt, { imageElement, data } ) => {\n\t\t\tconst urls = data.urls ? data.urls as Record<string, unknown> : data;\n\n\t\t\tthis.editor.model.change( writer => {\n\t\t\t\twriter.setAttribute( 'src', urls.default, imageElement );\n\t\t\t\tthis._parseAndSetSrcsetAttributeOnImage( urls, imageElement, writer );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst schema = this.editor.model.schema;\n\n\t\t// Setup schema to allow uploadId and uploadStatus for images.\n\t\t// Wait for ImageBlockEditing or ImageInlineEditing to register their elements first,\n\t\t// that's why doing this in afterInit() instead of init().\n\t\tif ( this.editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\tschema.extend( 'imageBlock', {\n\t\t\t\tallowAttributes: [ 'uploadId', 'uploadStatus' ]\n\t\t\t} );\n\t\t}\n\n\t\tif ( this.editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\tschema.extend( 'imageInline', {\n\t\t\t\tallowAttributes: [ 'uploadId', 'uploadStatus' ]\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Reads and uploads an image.\n\t *\n\t * The image is read from the disk and as a Base64-encoded string it is set temporarily to\n\t * `image[src]`. When the image is successfully uploaded, the temporary data is replaced with the target\n\t * image's URL (the URL to the uploaded image on the server).\n\t */\n\tprotected _readAndUpload( loader: FileLoader ): Promise<void> {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst t = editor.locale.t;\n\t\tconst fileRepository = editor.plugins.get( FileRepository );\n\t\tconst notification = editor.plugins.get( Notification );\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageUploadElements = this._uploadImageElements;\n\n\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\twriter.setAttribute( 'uploadStatus', 'reading', imageUploadElements.get( loader.id )! );\n\t\t} );\n\n\t\treturn loader.read()\n\t\t\t.then( () => {\n\t\t\t\tconst promise = loader.upload();\n\t\t\t\tconst imageElement = imageUploadElements.get( loader.id )!;\n\n\t\t\t\t// Force re–paint in Safari. Without it, the image will display with a wrong size.\n\t\t\t\t// https://github.com/ckeditor/ckeditor5/issues/1975\n\t\t\t\t/* istanbul ignore next -- @preserve */\n\t\t\t\tif ( env.isSafari ) {\n\t\t\t\t\tconst viewFigure = editor.editing.mapper.toViewElement( imageElement )!;\n\t\t\t\t\tconst viewImg = imageUtils.findViewImgElement( viewFigure )!;\n\n\t\t\t\t\teditor.editing.view.once( 'render', () => {\n\t\t\t\t\t\t// Early returns just to be safe. There might be some code ran\n\t\t\t\t\t\t// in between the outer scope and this callback.\n\t\t\t\t\t\tif ( !viewImg.parent ) {\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tconst domFigure = editor.editing.view.domConverter.mapViewToDom( viewImg.parent ) as HTMLElement | undefined;\n\n\t\t\t\t\t\tif ( !domFigure ) {\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tconst originalDisplay = domFigure.style.display;\n\n\t\t\t\t\t\tdomFigure.style.display = 'none';\n\n\t\t\t\t\t\t// Make sure this line will never be removed during minification for having \"no effect\".\n\t\t\t\t\t\t( domFigure as any )._ckHack = domFigure.offsetHeight;\n\n\t\t\t\t\t\tdomFigure.style.display = originalDisplay;\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\t\twriter.setAttribute( 'uploadStatus', 'uploading', imageElement );\n\t\t\t\t} );\n\n\t\t\t\treturn promise;\n\t\t\t} )\n\t\t\t.then( data => {\n\t\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\t\tconst imageElement = imageUploadElements.get( loader.id )!;\n\n\t\t\t\t\twriter.setAttribute( 'uploadStatus', 'complete', imageElement );\n\n\t\t\t\t\tthis.fire<ImageUploadCompleteEvent>( 'uploadComplete', { data, imageElement } );\n\t\t\t\t} );\n\n\t\t\t\tclean();\n\t\t\t} )\n\t\t\t.catch( error => {\n\t\t\t\t// If status is not 'error' nor 'aborted' - throw error because it means that something else went wrong,\n\t\t\t\t// it might be generic error and it would be real pain to find what is going on.\n\t\t\t\tif ( loader.status !== 'error' && loader.status !== 'aborted' ) {\n\t\t\t\t\tthrow error;\n\t\t\t\t}\n\n\t\t\t\t// Might be 'aborted'.\n\t\t\t\tif ( loader.status == 'error' && error ) {\n\t\t\t\t\tnotification.showWarning( error, {\n\t\t\t\t\t\ttitle: t( 'Upload failed' ),\n\t\t\t\t\t\tnamespace: 'upload'\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\t// Permanently remove image from insertion batch.\n\t\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\t\twriter.remove( imageUploadElements.get( loader.id )! );\n\t\t\t\t} );\n\n\t\t\t\tclean();\n\t\t\t} );\n\n\t\tfunction clean() {\n\t\t\tmodel.enqueueChange( { isUndoable: false }, writer => {\n\t\t\t\tconst imageElement = imageUploadElements.get( loader.id )!;\n\n\t\t\t\twriter.removeAttribute( 'uploadId', imageElement );\n\t\t\t\twriter.removeAttribute( 'uploadStatus', imageElement );\n\n\t\t\t\timageUploadElements.delete( loader.id );\n\t\t\t} );\n\n\t\t\tfileRepository.destroyLoader( loader );\n\t\t}\n\t}\n\n\t/**\n\t * Creates the `srcset` attribute based on a given file upload response and sets it as an attribute to a specific image element.\n\t *\n\t * @param data Data object from which `srcset` will be created.\n\t * @param image The image element on which the `srcset` attribute will be set.\n\t */\n\tprotected _parseAndSetSrcsetAttributeOnImage( data: Record<string, unknown>, image: Element, writer: Writer ): void {\n\t\t// Srcset attribute for responsive images support.\n\t\tlet maxWidth = 0;\n\n\t\tconst srcsetAttribute = Object.keys( data )\n\t\t\t// Filter out keys that are not integers.\n\t\t\t.filter( key => {\n\t\t\t\tconst width = parseInt( key, 10 );\n\n\t\t\t\tif ( !isNaN( width ) ) {\n\t\t\t\t\tmaxWidth = Math.max( maxWidth, width );\n\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t} )\n\n\t\t\t// Convert each key to srcset entry.\n\t\t\t.map( key => `${ data[ key ] } ${ key }w` )\n\n\t\t\t// Join all entries.\n\t\t\t.join( ', ' );\n\n\t\tif ( srcsetAttribute != '' ) {\n\t\t\twriter.setAttribute( 'srcset', {\n\t\t\t\tdata: srcsetAttribute,\n\t\t\t\twidth: maxWidth\n\t\t\t}, image );\n\t\t}\n\t}\n}\n\n/**\n * Returns `true` if non-empty `text/html` is included in the data transfer.\n */\nexport function isHtmlIncluded( dataTransfer: DataTransfer ): boolean {\n\treturn Array.from( dataTransfer.types ).includes( 'text/html' ) && dataTransfer.getData( 'text/html' ) !== '';\n}\n\nfunction getImagesFromChangeItem( editor: Editor, item: Item ): Array<Item> {\n\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\treturn Array.from( editor.model.createRangeOn( item ) )\n\t\t.filter( value => imageUtils.isImage( value.item as Element ) )\n\t\t.map( value => value.item );\n}\n\n/**\n * An event fired when an image is uploaded. You can hook into this event to provide\n * custom attributes to the {@link module:engine/model/element~Element image element} based on the data from\n * the server.\n *\n * ```ts\n * const imageUploadEditing = editor.plugins.get( 'ImageUploadEditing' );\n *\n * imageUploadEditing.on( 'uploadComplete', ( evt, { data, imageElement } ) => {\n * \teditor.model.change( writer => {\n * \t\twriter.setAttribute( 'someAttribute', 'foo', imageElement );\n * \t} );\n * } );\n * ```\n *\n * You can also stop the default handler that sets the `src` and `srcset` attributes\n * if you want to provide custom values for these attributes.\n *\n * ```ts\n * imageUploadEditing.on( 'uploadComplete', ( evt, { data, imageElement } ) => {\n * \tevt.stop();\n * } );\n * ```\n *\n * **Note**: This event is fired by the {@link module:image/imageupload/imageuploadediting~ImageUploadEditing} plugin.\n *\n * @eventName ~ImageUploadEditing#uploadComplete\n * @param data The `uploadComplete` event data.\n */\nexport type ImageUploadCompleteEvent = {\n\tname: 'uploadComplete';\n\targs: [ data: ImageUploadCompleteData];\n};\n\nexport type ImageUploadCompleteData = {\n\n\t/**\n\t * The data coming from the upload adapter.\n\t */\n\tdata: UploadResponse;\n\n\t/**\n\t * The model {@link module:engine/model/element~Element image element} that can be customized.\n\t */\n\timageElement: Element;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/resizeimagecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport type ImageUtils from '../imageutils';\n\n/**\n * The resize image command. Currently, it only supports the width attribute.\n */\nexport default class ResizeImageCommand extends Command {\n\t/**\n\t * Desired image width and height.\n\t */\n\tdeclare public value: null | {\n\t\twidth: string | null;\n\t\theight: string | null;\n\t};\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst element = imageUtils.getClosestSelectedImageElement( editor.model.document.selection );\n\n\t\tthis.isEnabled = !!element;\n\n\t\tif ( !element || !element.hasAttribute( 'width' ) ) {\n\t\t\tthis.value = null;\n\t\t} else {\n\t\t\tthis.value = {\n\t\t\t\twidth: element.getAttribute( 'width' ) as string,\n\t\t\t\theight: null\n\t\t\t};\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * ```ts\n\t * // Sets the width to 50%:\n\t * editor.execute( 'resizeImage', { width: '50%' } );\n\t *\n\t * // Removes the width attribute:\n\t * editor.execute( 'resizeImage', { width: null } );\n\t * ```\n\t *\n\t * @param options\n\t * @param options.width The new width of the image.\n\t * @fires execute\n\t */\n\tpublic override execute( options: { width: string | null } ): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\t\tconst imageElement = imageUtils.getClosestSelectedImageElement( model.document.selection );\n\n\t\tthis.value = {\n\t\t\twidth: options.width,\n\t\t\theight: null\n\t\t};\n\n\t\tif ( imageElement ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setAttribute( 'width', options.width, imageElement );\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/imageresizeediting\n */\n\nimport type { ViewElement } from 'ckeditor5/src/engine';\nimport { type Editor, Plugin } from 'ckeditor5/src/core';\nimport ImageUtils from '../imageutils';\nimport ResizeImageCommand from './resizeimagecommand';\n\n/**\n * The image resize editing feature.\n *\n * It adds the ability to resize each image using handles or manually by\n * {@link module:image/imageresize/imageresizebuttons~ImageResizeButtons} buttons.\n */\nexport default class ImageResizeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageResizeEditing' {\n\t\treturn 'ImageResizeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'image', {\n\t\t\tresizeUnit: '%',\n\t\t\tresizeOptions: [ {\n\t\t\t\tname: 'resizeImage:original',\n\t\t\t\tvalue: null,\n\t\t\t\ticon: 'original'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'resizeImage:25',\n\t\t\t\tvalue: '25',\n\t\t\t\ticon: 'small'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'resizeImage:50',\n\t\t\t\tvalue: '50',\n\t\t\t\ticon: 'medium'\n\t\t\t},\n\t\t\t{\n\t\t\t\tname: 'resizeImage:75',\n\t\t\t\tvalue: '75',\n\t\t\t\ticon: 'large'\n\t\t\t} ]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst resizeImageCommand = new ResizeImageCommand( editor );\n\n\t\tthis._registerSchema();\n\t\tthis._registerConverters( 'imageBlock' );\n\t\tthis._registerConverters( 'imageInline' );\n\n\t\t// Register `resizeImage` command and add `imageResize` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'resizeImage', resizeImageCommand );\n\t\teditor.commands.add( 'imageResize', resizeImageCommand );\n\t}\n\n\tprivate _registerSchema(): void {\n\t\tif ( this.editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\tthis.editor.model.schema.extend( 'imageBlock', { allowAttributes: 'width' } );\n\t\t}\n\n\t\tif ( this.editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\tthis.editor.model.schema.extend( 'imageInline', { allowAttributes: 'width' } );\n\t\t}\n\t}\n\n\t/**\n\t * Registers image resize converters.\n\t *\n\t * @param imageType The type of the image.\n\t */\n\tprivate _registerConverters( imageType: 'imageBlock' | 'imageInline' ) {\n\t\tconst editor = this.editor;\n\n\t\t// Dedicated converter to propagate image's attribute to the img tag.\n\t\teditor.conversion.for( 'downcast' ).add( dispatcher =>\n\t\t\tdispatcher.on( `attribute:width:${ imageType }`, ( evt, data, conversionApi ) => {\n\t\t\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\t\tconst figure = conversionApi.mapper.toViewElement( data.item );\n\n\t\t\t\tif ( data.attributeNewValue !== null ) {\n\t\t\t\t\tviewWriter.setStyle( 'width', data.attributeNewValue, figure );\n\t\t\t\t\tviewWriter.addClass( 'image_resized', figure );\n\t\t\t\t} else {\n\t\t\t\t\tviewWriter.removeStyle( 'width', figure );\n\t\t\t\t\tviewWriter.removeClass( 'image_resized', figure );\n\t\t\t\t}\n\t\t\t} )\n\t\t);\n\n\t\teditor.conversion.for( 'upcast' )\n\t\t\t.attributeToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: imageType === 'imageBlock' ? 'figure' : 'img',\n\t\t\t\t\tstyles: {\n\t\t\t\t\t\twidth: /.+/\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: 'width',\n\t\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getStyle( 'width' )\n\t\t\t\t}\n\t\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/imageresizebuttons\n */\n\nimport { Plugin, icons, type Editor } from 'ckeditor5/src/core';\nimport {\n\tButtonView,\n\tDropdownButtonView,\n\tModel,\n\tcreateDropdown,\n\taddListToDropdown,\n\ttype ListDropdownItemDefinition\n} from 'ckeditor5/src/ui';\nimport { CKEditorError, Collection, type Locale } from 'ckeditor5/src/utils';\n\nimport ImageResizeEditing from './imageresizeediting';\nimport type ResizeImageCommand from './resizeimagecommand';\nimport type { ImageResizeOption } from '../imageconfig';\n\nconst RESIZE_ICONS = {\n\tsmall: icons.objectSizeSmall,\n\tmedium: icons.objectSizeMedium,\n\tlarge: icons.objectSizeLarge,\n\toriginal: icons.objectSizeFull\n};\n\n/**\n * The image resize buttons plugin.\n *\n * It adds a possibility to resize images using the toolbar dropdown or individual buttons, depending on the plugin configuration.\n */\nexport default class ImageResizeButtons extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageResizeEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageResizeButtons' {\n\t\treturn 'ImageResizeButtons';\n\t}\n\n\t/**\n\t * The resize unit.\n\t * @default '%'\n\t */\n\tprivate readonly _resizeUnit: 'px' | '%';\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._resizeUnit = editor.config.get( 'image.resizeUnit' )!;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst options = editor.config.get( 'image.resizeOptions' )!;\n\t\tconst command: ResizeImageCommand = editor.commands.get( 'resizeImage' )!;\n\n\t\tthis.bind( 'isEnabled' ).to( command );\n\n\t\tfor ( const option of options ) {\n\t\t\tthis._registerImageResizeButton( option );\n\t\t}\n\n\t\tthis._registerImageResizeDropdown( options );\n\t}\n\n\t/**\n\t * A helper function that creates a standalone button component for the plugin.\n\t *\n\t * @param resizeOption A model of the resize option.\n\t */\n\tprivate _registerImageResizeButton( option: ImageResizeOption ): void {\n\t\tconst editor = this.editor;\n\t\tconst { name, value, icon } = option;\n\t\tconst optionValueWithUnit = value ? value + this._resizeUnit : null;\n\n\t\teditor.ui.componentFactory.add( name, locale => {\n\t\t\tconst button = new ButtonView( locale );\n\t\t\tconst command: ResizeImageCommand = editor.commands.get( 'resizeImage' )!;\n\t\t\tconst labelText = this._getOptionLabelValue( option, true );\n\n\t\t\tif ( !RESIZE_ICONS[ icon as keyof typeof RESIZE_ICONS ] ) {\n\t\t\t\t/**\n\t\t\t\t * When configuring {@link module:image/imageconfig~ImageConfig#resizeOptions `config.image.resizeOptions`} for standalone\n\t\t\t\t * buttons, a valid `icon` token must be set for each option.\n\t\t\t\t *\n\t\t\t\t * See all valid options described in the\n\t\t\t\t * {@link module:image/imageconfig~ImageResizeOption plugin configuration}.\n\t\t\t\t *\n\t\t\t\t * @error imageresizebuttons-missing-icon\n\t\t\t\t * @param option Invalid image resize option.\n\t\t\t\t*/\n\t\t\t\tthrow new CKEditorError(\n\t\t\t\t\t'imageresizebuttons-missing-icon',\n\t\t\t\t\teditor,\n\t\t\t\t\toption\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tbutton.set( {\n\t\t\t\t// Use the `label` property for a verbose description (because of ARIA).\n\t\t\t\tlabel: labelText,\n\t\t\t\ticon: RESIZE_ICONS[ icon as keyof typeof RESIZE_ICONS ],\n\t\t\t\ttooltip: labelText,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\t// Bind button to the command.\n\t\t\tbutton.bind( 'isEnabled' ).to( this );\n\t\t\tbutton.bind( 'isOn' ).to( command, 'value', getIsOnButtonCallback( optionValueWithUnit ) );\n\n\t\t\tthis.listenTo( button, 'execute', () => {\n\t\t\t\teditor.execute( 'resizeImage', { width: optionValueWithUnit } );\n\t\t\t} );\n\n\t\t\treturn button;\n\t\t} );\n\t}\n\n\t/**\n\t * A helper function that creates a dropdown component for the plugin containing all the resize options defined in\n\t * the editor configuration.\n\t *\n\t * @param options An array of configured options.\n\t */\n\tprivate _registerImageResizeDropdown( options: Array<ImageResizeOption> ): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst originalSizeOption = options.find( option => !option.value )!;\n\n\t\tconst componentCreator = ( locale: Locale ) => {\n\t\t\tconst command: ResizeImageCommand = editor.commands.get( 'resizeImage' )!;\n\t\t\tconst dropdownView = createDropdown( locale, DropdownButtonView );\n\t\t\tconst dropdownButton: typeof dropdownView.buttonView & { commandValue?: string | null } = dropdownView.buttonView;\n\n\t\t\tdropdownButton.set( {\n\t\t\t\ttooltip: t( 'Resize image' ),\n\t\t\t\tcommandValue: originalSizeOption.value,\n\t\t\t\ticon: RESIZE_ICONS.medium,\n\t\t\t\tisToggleable: true,\n\t\t\t\tlabel: this._getOptionLabelValue( originalSizeOption ),\n\t\t\t\twithText: true,\n\t\t\t\tclass: 'ck-resize-image-button'\n\t\t\t} );\n\n\t\t\tdropdownButton.bind( 'label' ).to( command, 'value', commandValue => {\n\t\t\t\tif ( commandValue && commandValue.width ) {\n\t\t\t\t\treturn commandValue.width;\n\t\t\t\t} else {\n\t\t\t\t\treturn this._getOptionLabelValue( originalSizeOption );\n\t\t\t\t}\n\t\t\t} );\n\t\t\tdropdownView.bind( 'isEnabled' ).to( this );\n\n\t\t\taddListToDropdown( dropdownView, () => this._getResizeDropdownListItemDefinitions( options, command ), {\n\t\t\t\tariaLabel: t( 'Image resize list' )\n\t\t\t} );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\t\teditor.execute( ( evt.source as any ).commandName, { width: ( evt.source as any ).commandValue } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t};\n\n\t\t// Register `resizeImage` dropdown and add `imageResize` dropdown as an alias for backward compatibility.\n\t\teditor.ui.componentFactory.add( 'resizeImage', componentCreator );\n\t\teditor.ui.componentFactory.add( 'imageResize', componentCreator );\n\t}\n\n\t/**\n\t * A helper function for creating an option label value string.\n\t *\n\t * @param option A resize option object.\n\t * @param forTooltip An optional flag for creating a tooltip label.\n\t * @returns A user-defined label combined from the numeric value and the resize unit or the default label\n\t * for reset options (`Original`).\n\t */\n\tprivate _getOptionLabelValue( option: ImageResizeOption, forTooltip: boolean = false ): string {\n\t\tconst t = this.editor.t;\n\n\t\tif ( option.label ) {\n\t\t\treturn option.label;\n\t\t} else if ( forTooltip ) {\n\t\t\tif ( option.value ) {\n\t\t\t\treturn t( 'Resize image to %0', option.value + this._resizeUnit );\n\t\t\t} else {\n\t\t\t\treturn t( 'Resize image to the original size' );\n\t\t\t}\n\t\t} else {\n\t\t\tif ( option.value ) {\n\t\t\t\treturn option.value + this._resizeUnit;\n\t\t\t} else {\n\t\t\t\treturn t( 'Original' );\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * A helper function that parses the resize options and returns list item definitions ready for use in the dropdown.\n\t *\n\t * @param options The resize options.\n\t * @param command The resize image command.\n\t * @returns Dropdown item definitions.\n\t */\n\tprivate _getResizeDropdownListItemDefinitions(\n\t\toptions: Array<ImageResizeOption>,\n\t\tcommand: ResizeImageCommand\n\t): Collection<ListDropdownItemDefinition> {\n\t\tconst itemDefinitions = new Collection<ListDropdownItemDefinition>();\n\n\t\toptions.map( option => {\n\t\t\tconst optionValueWithUnit = option.value ? option.value + this._resizeUnit : null;\n\t\t\tconst definition: ListDropdownItemDefinition = {\n\t\t\t\ttype: 'button',\n\t\t\t\tmodel: new Model( {\n\t\t\t\t\tcommandName: 'resizeImage',\n\t\t\t\t\tcommandValue: optionValueWithUnit,\n\t\t\t\t\tlabel: this._getOptionLabelValue( option ),\n\t\t\t\t\twithText: true,\n\t\t\t\t\ticon: null\n\t\t\t\t} )\n\t\t\t};\n\n\t\t\tdefinition.model.bind( 'isOn' ).to( command, 'value', getIsOnButtonCallback( optionValueWithUnit ) );\n\n\t\t\titemDefinitions.add( definition );\n\t\t} );\n\n\t\treturn itemDefinitions;\n\t}\n}\n\n/**\n * A helper function for setting the `isOn` state of buttons in value bindings.\n */\nfunction getIsOnButtonCallback( value: string | null ): ( commandValue: unknown ) => boolean {\n\treturn ( commandValue: unknown ): boolean => {\n\t\tconst objectCommandValue = commandValue as null | { width: string | null };\n\t\tif ( value === null && objectCommandValue === value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\treturn objectCommandValue !== null && objectCommandValue.width === value;\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize/imageresizehandles\n */\n\nimport type { Element, ViewContainerElement, ViewElement } from 'ckeditor5/src/engine';\nimport { Plugin } from 'ckeditor5/src/core';\nimport { WidgetResize } from 'ckeditor5/src/widget';\n\nimport ImageLoadObserver, { type ImageLoadedEvent } from '../image/imageloadobserver';\nimport type ResizeImageCommand from './resizeimagecommand';\n\nconst RESIZABLE_IMAGES_CSS_SELECTOR =\n\t'figure.image.ck-widget > img,' +\n\t'figure.image.ck-widget > picture > img,' +\n\t'figure.image.ck-widget > a > img,' +\n\t'figure.image.ck-widget > a > picture > img,' +\n\t'span.image-inline.ck-widget > img,' +\n\t'span.image-inline.ck-widget > picture > img';\n\nconst IMAGE_WIDGETS_CLASSES_MATCH_REGEXP = /(image|image-inline)/;\n\nconst RESIZED_IMAGE_CLASS = 'image_resized';\n\n/**\n * The image resize by handles feature.\n *\n * It adds the ability to resize each image using handles or manually by\n * {@link module:image/imageresize/imageresizebuttons~ImageResizeButtons} buttons.\n */\nexport default class ImageResizeHandles extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ WidgetResize ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageResizeHandles' {\n\t\treturn 'ImageResizeHandles';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst command: ResizeImageCommand = this.editor.commands.get( 'resizeImage' )!;\n\t\tthis.bind( 'isEnabled' ).to( command );\n\n\t\tthis._setupResizerCreator();\n\t}\n\n\t/**\n\t * Attaches the listeners responsible for creating a resizer for each image, except for images inside the HTML embed preview.\n\t */\n\tprivate _setupResizerCreator(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\teditingView.addObserver( ImageLoadObserver );\n\n\t\tthis.listenTo<ImageLoadedEvent>( editingView.document, 'imageLoaded', ( evt, domEvent ) => {\n\t\t\t// The resizer must be attached only to images loaded by the `ImageInsert`, `ImageUpload` or `LinkImage` plugins.\n\t\t\tif ( !( domEvent.target as HTMLElement ).matches( RESIZABLE_IMAGES_CSS_SELECTOR ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst domConverter = editor.editing.view.domConverter;\n\t\t\tconst imageView = domConverter.domToView( domEvent.target as HTMLElement ) as ViewElement;\n\t\t\tconst widgetView = imageView.findAncestor( { classes: IMAGE_WIDGETS_CLASSES_MATCH_REGEXP } ) as ViewContainerElement;\n\t\t\tlet resizer = this.editor.plugins.get( WidgetResize ).getResizerByViewElement( widgetView );\n\n\t\t\tif ( resizer ) {\n\t\t\t\t// There are rare cases when the image will be triggered multiple times for the same widget, e.g. when\n\t\t\t\t// the image's source was changed after upload (https://github.com/ckeditor/ckeditor5/pull/8108#issuecomment-708302992).\n\t\t\t\tresizer.redraw();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst mapper = editor.editing.mapper;\n\t\t\tconst imageModel = mapper.toModelElement( widgetView )!;\n\n\t\t\tresizer = editor.plugins\n\t\t\t\t.get( WidgetResize )\n\t\t\t\t.attachTo( {\n\t\t\t\t\tunit: editor.config.get( 'image.resizeUnit' )!,\n\n\t\t\t\t\tmodelElement: imageModel,\n\t\t\t\t\tviewElement: widgetView,\n\t\t\t\t\teditor,\n\n\t\t\t\t\tgetHandleHost( domWidgetElement ) {\n\t\t\t\t\t\treturn domWidgetElement.querySelector( 'img' )!;\n\t\t\t\t\t},\n\t\t\t\t\tgetResizeHost() {\n\t\t\t\t\t\t// Return the model image element parent to avoid setting an inline element (<a>/<span>) as a resize host.\n\t\t\t\t\t\treturn domConverter.mapViewToDom( mapper.toViewElement( imageModel.parent as Element )! ) as HTMLElement;\n\t\t\t\t\t},\n\t\t\t\t\t// TODO consider other positions.\n\t\t\t\t\tisCentered() {\n\t\t\t\t\t\tconst imageStyle = imageModel.getAttribute( 'imageStyle' );\n\n\t\t\t\t\t\treturn !imageStyle || imageStyle == 'block' || imageStyle == 'alignCenter';\n\t\t\t\t\t},\n\n\t\t\t\t\tonCommit( newValue ) {\n\t\t\t\t\t\t// Get rid of the CSS class in case the command execution that follows is unsuccessful\n\t\t\t\t\t\t// (e.g. Track Changes can override it and the new dimensions will not apply). Otherwise,\n\t\t\t\t\t\t// the presence of the class and the absence of the width style will cause it to take 100%\n\t\t\t\t\t\t// of the horizontal space.\n\t\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\t\twriter.removeClass( RESIZED_IMAGE_CLASS, widgetView );\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t\teditor.execute( 'resizeImage', { width: newValue } );\n\t\t\t\t\t}\n\t\t\t\t} );\n\n\t\t\tresizer.on( 'updateSize', () => {\n\t\t\t\tif ( !widgetView.hasClass( RESIZED_IMAGE_CLASS ) ) {\n\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\twriter.addClass( RESIZED_IMAGE_CLASS, widgetView );\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tresizer.bind( 'isEnabled' ).to( this );\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./imageresize.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/utils/automaticdecorators\n */\n\nimport { toMap, type ArrayOrItem } from 'ckeditor5/src/utils';\nimport type { DowncastAttributeEvent, DowncastDispatcher, Element, ViewElement } from 'ckeditor5/src/engine';\nimport type { NormalizedLinkDecoratorAutomaticDefinition } from '../utils';\n\n/**\n * Helper class that ties together all {@link module:link/linkconfig~LinkDecoratorAutomaticDefinition} and provides\n * the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement downcast dispatchers} for them.\n */\nexport default class AutomaticDecorators {\n\t/**\n\t * Stores the definition of {@link module:link/linkconfig~LinkDecoratorAutomaticDefinition automatic decorators}.\n\t * This data is used as a source for a downcast dispatcher to create a proper conversion to output data.\n\t */\n\tprivate _definitions = new Set<NormalizedLinkDecoratorAutomaticDefinition>();\n\n\t/**\n\t * Gives information about the number of decorators stored in the {@link module:link/utils/automaticdecorators~AutomaticDecorators}\n\t * instance.\n\t */\n\tpublic get length(): number {\n\t\treturn this._definitions.size;\n\t}\n\n\t/**\n\t * Adds automatic decorator objects or an array with them to be used during downcasting.\n\t *\n\t * @param item A configuration object of automatic rules for decorating links. It might also be an array of such objects.\n\t */\n\tpublic add( item: ArrayOrItem<NormalizedLinkDecoratorAutomaticDefinition> ): void {\n\t\tif ( Array.isArray( item ) ) {\n\t\t\titem.forEach( item => this._definitions.add( item ) );\n\t\t} else {\n\t\t\tthis._definitions.add( item );\n\t\t}\n\t}\n\n\t/**\n\t * Provides the conversion helper used in the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add} method.\n\t *\n\t * @returns A dispatcher function used as conversion helper in {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add}.\n\t */\n\tpublic getDispatcher(): ( dispatcher: DowncastDispatcher ) => void {\n\t\treturn dispatcher => {\n\t\t\tdispatcher.on<DowncastAttributeEvent>( 'attribute:linkHref', ( evt, data, conversionApi ) => {\n\t\t\t\t// There is only test as this behavior decorates links and\n\t\t\t\t// it is run before dispatcher which actually consumes this node.\n\t\t\t\t// This allows on writing own dispatcher with highest priority,\n\t\t\t\t// which blocks both native converter and this additional decoration.\n\t\t\t\tif ( !conversionApi.consumable.test( data.item, 'attribute:linkHref' ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Automatic decorators for block links are handled e.g. in LinkImageEditing.\n\t\t\t\tif ( !( data.item.is( 'selection' ) || conversionApi.schema.isInline( data.item ) ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\t\tconst viewSelection = viewWriter.document.selection;\n\n\t\t\t\tfor ( const item of this._definitions ) {\n\t\t\t\t\tconst viewElement = viewWriter.createAttributeElement( 'a', item.attributes, {\n\t\t\t\t\t\tpriority: 5\n\t\t\t\t\t} );\n\n\t\t\t\t\tif ( item.classes ) {\n\t\t\t\t\t\tviewWriter.addClass( item.classes, viewElement );\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( const key in item.styles ) {\n\t\t\t\t\t\tviewWriter.setStyle( key, item.styles[ key ], viewElement );\n\t\t\t\t\t}\n\n\t\t\t\t\tviewWriter.setCustomProperty( 'link', true, viewElement );\n\n\t\t\t\t\tif ( item.callback( data.attributeNewValue as string | null ) ) {\n\t\t\t\t\t\tif ( data.item.is( 'selection' ) ) {\n\t\t\t\t\t\t\tviewWriter.wrap( viewSelection.getFirstRange()!, viewElement );\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tviewWriter.wrap( conversionApi.mapper.toViewRange( data.range ), viewElement );\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tviewWriter.unwrap( conversionApi.mapper.toViewRange( data.range ), viewElement );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}, { priority: 'high' } );\n\t\t};\n\t}\n\n\t/**\n\t * Provides the conversion helper used in the {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add} method\n\t * when linking images.\n\t *\n\t * @returns A dispatcher function used as conversion helper in {@link module:engine/conversion/downcasthelpers~DowncastHelpers#add}.\n\t */\n\tpublic getDispatcherForLinkedImage(): ( dispatcher: DowncastDispatcher ) => void {\n\t\treturn dispatcher => {\n\t\t\tdispatcher.on<DowncastAttributeEvent<Element>>( 'attribute:linkHref:imageBlock', ( evt, data, { writer, mapper } ) => {\n\t\t\t\tconst viewFigure = mapper.toViewElement( data.item )!;\n\t\t\t\tconst linkInImage = Array.from( viewFigure.getChildren() )\n\t\t\t\t\t.find( ( child ): child is ViewElement => child.is( 'element', 'a' ) )!;\n\n\t\t\t\tfor ( const item of this._definitions ) {\n\t\t\t\t\tconst attributes = toMap( item.attributes );\n\n\t\t\t\t\tif ( item.callback( data.attributeNewValue as string | null ) ) {\n\t\t\t\t\t\tfor ( const [ key, val ] of attributes ) {\n\t\t\t\t\t\t\t// Left for backward compatibility. Since v30 decorator should\n\t\t\t\t\t\t\t// accept `classes` and `styles` separately from `attributes`.\n\t\t\t\t\t\t\tif ( key === 'class' ) {\n\t\t\t\t\t\t\t\twriter.addClass( val, linkInImage );\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\twriter.setAttribute( key, val, linkInImage );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( item.classes ) {\n\t\t\t\t\t\t\twriter.addClass( item.classes, linkInImage );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( const key in item.styles ) {\n\t\t\t\t\t\t\twriter.setStyle( key, item.styles[ key ], linkInImage );\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tfor ( const [ key, val ] of attributes ) {\n\t\t\t\t\t\t\tif ( key === 'class' ) {\n\t\t\t\t\t\t\t\twriter.removeClass( val, linkInImage );\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\twriter.removeAttribute( key, linkInImage );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( item.classes ) {\n\t\t\t\t\t\t\twriter.removeClass( item.classes, linkInImage );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( const key in item.styles ) {\n\t\t\t\t\t\t\twriter.removeStyle( key, linkInImage );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t};\n\t}\n}\n","import baseSlice from './_baseSlice.js';\n\n/**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\nfunction castSlice(array, start, end) {\n  var length = array.length;\n  end = end === undefined ? length : end;\n  return (!start && end >= length) ? array : baseSlice(array, start, end);\n}\n\nexport default castSlice;\n","/** Used to compose unicode character classes. */\nvar rsAstralRange = '\\\\ud800-\\\\udfff',\n    rsComboMarksRange = '\\\\u0300-\\\\u036f',\n    reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n    rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n    rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n    rsVarRange = '\\\\ufe0e\\\\ufe0f';\n\n/** Used to compose unicode capture groups. */\nvar rsZWJ = '\\\\u200d';\n\n/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\nvar reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');\n\n/**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\nfunction hasUnicode(string) {\n  return reHasUnicode.test(string);\n}\n\nexport default hasUnicode;\n","/**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction asciiToArray(string) {\n  return string.split('');\n}\n\nexport default asciiToArray;\n","/** Used to compose unicode character classes. */\nvar rsAstralRange = '\\\\ud800-\\\\udfff',\n    rsComboMarksRange = '\\\\u0300-\\\\u036f',\n    reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n    rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n    rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n    rsVarRange = '\\\\ufe0e\\\\ufe0f';\n\n/** Used to compose unicode capture groups. */\nvar rsAstral = '[' + rsAstralRange + ']',\n    rsCombo = '[' + rsComboRange + ']',\n    rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n    rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n    rsNonAstral = '[^' + rsAstralRange + ']',\n    rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n    rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n    rsZWJ = '\\\\u200d';\n\n/** Used to compose unicode regexes. */\nvar reOptMod = rsModifier + '?',\n    rsOptVar = '[' + rsVarRange + ']?',\n    rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n    rsSeq = rsOptVar + reOptMod + rsOptJoin,\n    rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\nvar reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n/**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction unicodeToArray(string) {\n  return string.match(reUnicode) || [];\n}\n\nexport default unicodeToArray;\n","import asciiToArray from './_asciiToArray.js';\nimport hasUnicode from './_hasUnicode.js';\nimport unicodeToArray from './_unicodeToArray.js';\n\n/**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction stringToArray(string) {\n  return hasUnicode(string)\n    ? unicodeToArray(string)\n    : asciiToArray(string);\n}\n\nexport default stringToArray;\n","import createCaseFirst from './_createCaseFirst.js';\n\n/**\n * Converts the first character of `string` to upper case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.upperFirst('fred');\n * // => 'Fred'\n *\n * _.upperFirst('FRED');\n * // => 'FRED'\n */\nvar upperFirst = createCaseFirst('toUpperCase');\n\nexport default upperFirst;\n","import castSlice from './_castSlice.js';\nimport hasUnicode from './_hasUnicode.js';\nimport stringToArray from './_stringToArray.js';\nimport toString from './toString.js';\n\n/**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\nfunction createCaseFirst(methodName) {\n  return function(string) {\n    string = toString(string);\n\n    var strSymbols = hasUnicode(string)\n      ? stringToArray(string)\n      : undefined;\n\n    var chr = strSymbols\n      ? strSymbols[0]\n      : string.charAt(0);\n\n    var trailing = strSymbols\n      ? castSlice(strSymbols, 1).join('')\n      : string.slice(1);\n\n    return chr[methodName]() + trailing;\n  };\n}\n\nexport default createCaseFirst;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/utils\n */\n\n/* global window */\n\nimport type {\n\tDowncastConversionApi,\n\tElement,\n\tSchema,\n\tViewAttributeElement,\n\tViewNode,\n\tViewDocumentFragment\n} from 'ckeditor5/src/engine';\nimport type { LocaleTranslate } from 'ckeditor5/src/utils';\n\nimport type {\n\tLinkDecoratorAutomaticDefinition,\n\tLinkDecoratorDefinition,\n\tLinkDecoratorManualDefinition\n} from './linkconfig';\n\nimport { upperFirst } from 'lodash-es';\n\nconst ATTRIBUTE_WHITESPACES = /[\\u0000-\\u0020\\u00A0\\u1680\\u180E\\u2000-\\u2029\\u205f\\u3000]/g; // eslint-disable-line no-control-regex\nconst SAFE_URL = /^(?:(?:https?|ftps?|mailto):|[^a-z]|[a-z+.-]+(?:[^a-z+.:-]|$))/i;\n\n// Simplified email test - should be run over previously found URL.\nconst EMAIL_REG_EXP = /^[\\S]+@((?![-_])(?:[-\\w\\u00a1-\\uffff]{0,63}[^-_]\\.))+(?:[a-z\\u00a1-\\uffff]{2,})$/i;\n\n// The regex checks for the protocol syntax ('xxxx://' or 'xxxx:')\n// or non-word characters at the beginning of the link ('/', '#' etc.).\nconst PROTOCOL_REG_EXP = /^((\\w+:(\\/{2,})?)|(\\W))/i;\n\n/**\n * A keystroke used by the {@link module:link/linkui~LinkUI link UI feature}.\n */\nexport const LINK_KEYSTROKE = 'Ctrl+K';\n\n/**\n * Returns `true` if a given view node is the link element.\n */\nexport function isLinkElement( node: ViewNode | ViewDocumentFragment ): boolean {\n\treturn node.is( 'attributeElement' ) && !!node.getCustomProperty( 'link' );\n}\n\n/**\n * Creates a link {@link module:engine/view/attributeelement~AttributeElement} with the provided `href` attribute.\n */\nexport function createLinkElement( href: string, { writer }: DowncastConversionApi ): ViewAttributeElement {\n\t// Priority 5 - https://github.com/ckeditor/ckeditor5-link/issues/121.\n\tconst linkElement = writer.createAttributeElement( 'a', { href }, { priority: 5 } );\n\n\twriter.setCustomProperty( 'link', true, linkElement );\n\n\treturn linkElement;\n}\n\n/**\n * Returns a safe URL based on a given value.\n *\n * A URL is considered safe if it is safe for the user (does not contain any malicious code).\n *\n * If a URL is considered unsafe, a simple `\"#\"` is returned.\n *\n * @internal\n */\nexport function ensureSafeUrl( url: unknown ): string {\n\tconst urlString = String( url );\n\n\treturn isSafeUrl( urlString ) ? urlString : '#';\n}\n\n/**\n * Checks whether the given URL is safe for the user (does not contain any malicious code).\n */\nfunction isSafeUrl( url: string ): boolean {\n\tconst normalizedUrl = url.replace( ATTRIBUTE_WHITESPACES, '' );\n\n\treturn !!normalizedUrl.match( SAFE_URL );\n}\n\n/**\n * Returns the {@link module:link/linkconfig~LinkConfig#decorators `config.link.decorators`} configuration processed\n * to respect the locale of the editor, i.e. to display the {@link module:link/linkconfig~LinkDecoratorManualDefinition label}\n * in the correct language.\n *\n * **Note**: Only the few most commonly used labels are translated automatically. Other labels should be manually\n * translated in the {@link module:link/linkconfig~LinkConfig#decorators `config.link.decorators`} configuration.\n *\n * @param t Shorthand for {@link module:utils/locale~Locale#t Locale#t}.\n * @param decorators The decorator reference where the label values should be localized.\n */\nexport function getLocalizedDecorators(\n\tt: LocaleTranslate,\n\tdecorators: Array<NormalizedLinkDecoratorDefinition>\n): Array<NormalizedLinkDecoratorDefinition> {\n\tconst localizedDecoratorsLabels: Record<string, string> = {\n\t\t'Open in a new tab': t( 'Open in a new tab' ),\n\t\t'Downloadable': t( 'Downloadable' )\n\t};\n\n\tdecorators.forEach( decorator => {\n\t\tif ( 'label' in decorator && localizedDecoratorsLabels[ decorator.label ] ) {\n\t\t\tdecorator.label = localizedDecoratorsLabels[ decorator.label ];\n\t\t}\n\n\t\treturn decorator;\n\t} );\n\n\treturn decorators;\n}\n\n/**\n * Converts an object with defined decorators to a normalized array of decorators. The `id` key is added for each decorator and\n * is used as the attribute's name in the model.\n */\nexport function normalizeDecorators( decorators?: Record<string, LinkDecoratorDefinition> ): Array<NormalizedLinkDecoratorDefinition> {\n\tconst retArray: Array<NormalizedLinkDecoratorDefinition> = [];\n\n\tif ( decorators ) {\n\t\tfor ( const [ key, value ] of Object.entries( decorators ) ) {\n\t\t\tconst decorator = Object.assign(\n\t\t\t\t{},\n\t\t\t\tvalue,\n\t\t\t\t{ id: `link${ upperFirst( key ) }` }\n\t\t\t);\n\n\t\t\tretArray.push( decorator );\n\t\t}\n\t}\n\n\treturn retArray;\n}\n\n/**\n * Returns `true` if the specified `element` can be linked (the element allows the `linkHref` attribute).\n */\nexport function isLinkableElement( element: Element | null, schema: Schema ): element is Element {\n\tif ( !element ) {\n\t\treturn false;\n\t}\n\n\treturn schema.checkAttribute( element.name, 'linkHref' );\n}\n\n/**\n * Returns `true` if the specified `value` is an email.\n */\nexport function isEmail( value: string ): boolean {\n\treturn EMAIL_REG_EXP.test( value );\n}\n\n/**\n * Adds the protocol prefix to the specified `link` when:\n *\n * * it does not contain it already, and there is a {@link module:link/linkconfig~LinkConfig#defaultProtocol `defaultProtocol` }\n * configuration value provided,\n * * or the link is an email address.\n */\nexport function addLinkProtocolIfApplicable( link: string, defaultProtocol?: string ): string {\n\tconst protocol = isEmail( link ) ? 'mailto:' : defaultProtocol;\n\tconst isProtocolNeeded = !!protocol && !linkHasProtocol( link );\n\n\treturn link && isProtocolNeeded ? protocol + link : link;\n}\n\n/**\n * Checks if protocol is already included in the link.\n */\nexport function linkHasProtocol( link: string ): boolean {\n\treturn PROTOCOL_REG_EXP.test( link );\n}\n\n/**\n * Opens the link in a new browser tab.\n */\nexport function openLink( link: string ): void {\n\twindow.open( link, '_blank', 'noopener' );\n}\n\nexport type NormalizedLinkDecoratorAutomaticDefinition = LinkDecoratorAutomaticDefinition & { id: string };\nexport type NormalizedLinkDecoratorManualDefinition = LinkDecoratorManualDefinition & { id: string };\nexport type NormalizedLinkDecoratorDefinition = NormalizedLinkDecoratorAutomaticDefinition | NormalizedLinkDecoratorManualDefinition;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/linkcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { findAttributeRange } from 'ckeditor5/src/typing';\nimport { Collection, first, toMap } from 'ckeditor5/src/utils';\nimport type { Range, DocumentSelection, Model, Writer } from 'ckeditor5/src/engine';\n\nimport AutomaticDecorators from './utils/automaticdecorators';\nimport { isLinkableElement } from './utils';\nimport type ManualDecorator from './utils/manualdecorator';\n\n/**\n * The link command. It is used by the {@link module:link/link~Link link feature}.\n */\nexport default class LinkCommand extends Command {\n\t/**\n\t * The value of the `'linkHref'` attribute if the start of the selection is located in a node with this attribute.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: string | undefined;\n\n\t/**\n\t * A collection of {@link module:link/utils/manualdecorator~ManualDecorator manual decorators}\n\t * corresponding to the {@link module:link/linkconfig~LinkConfig#decorators decorator configuration}.\n\t *\n\t * You can consider it a model with states of manual decorators added to the currently selected link.\n\t */\n\tpublic readonly manualDecorators = new Collection<ManualDecorator>();\n\n\t/**\n\t * An instance of the helper that ties together all {@link module:link/linkconfig~LinkDecoratorAutomaticDefinition}\n\t * that are used by the {@glink features/link link} and the {@glink features/images/images-linking linking images} features.\n\t */\n\tpublic readonly automaticDecorators = new AutomaticDecorators();\n\n\t/**\n\t * Synchronizes the state of {@link #manualDecorators} with the currently present elements in the model.\n\t */\n\tpublic restoreManualDecoratorStates(): void {\n\t\tfor ( const manualDecorator of this.manualDecorators ) {\n\t\t\tmanualDecorator.value = this._getDecoratorStateFromModel( manualDecorator.id );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement() || first( selection.getSelectedBlocks() );\n\n\t\t// A check for any integration that allows linking elements (e.g. `LinkImage`).\n\t\t// Currently the selection reads attributes from text nodes only. See #7429 and #7465.\n\t\tif ( isLinkableElement( selectedElement, model.schema ) ) {\n\t\t\tthis.value = selectedElement.getAttribute( 'linkHref' ) as string | undefined;\n\t\t\tthis.isEnabled = model.schema.checkAttribute( selectedElement, 'linkHref' );\n\t\t} else {\n\t\t\tthis.value = selection.getAttribute( 'linkHref' ) as string | undefined;\n\t\t\tthis.isEnabled = model.schema.checkAttributeInSelection( selection, 'linkHref' );\n\t\t}\n\n\t\tfor ( const manualDecorator of this.manualDecorators ) {\n\t\t\tmanualDecorator.value = this._getDecoratorStateFromModel( manualDecorator.id );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is non-collapsed, the `linkHref` attribute will be applied to nodes inside the selection, but only to\n\t * those nodes where the `linkHref` attribute is allowed (disallowed nodes will be omitted).\n\t *\n\t * When the selection is collapsed and is not inside the text with the `linkHref` attribute, a\n\t * new {@link module:engine/model/text~Text text node} with the `linkHref` attribute will be inserted in place of the caret, but\n\t * only if such element is allowed in this place. The `_data` of the inserted text will equal the `href` parameter.\n\t * The selection will be updated to wrap the just inserted text node.\n\t *\n\t * When the selection is collapsed and inside the text with the `linkHref` attribute, the attribute value will be updated.\n\t *\n\t * # Decorators and model attribute management\n\t *\n\t * There is an optional argument to this command that applies or removes model\n\t * {@glink framework/architecture/editing-engine#text-attributes text attributes} brought by\n\t * {@link module:link/utils/manualdecorator~ManualDecorator manual link decorators}.\n\t *\n\t * Text attribute names in the model correspond to the entries in the {@link module:link/linkconfig~LinkConfig#decorators\n\t * configuration}.\n\t * For every decorator configured, a model text attribute exists with the \"link\" prefix. For example, a `'linkMyDecorator'` attribute\n\t * corresponds to `'myDecorator'` in the configuration.\n\t *\n\t * To learn more about link decorators, check out the {@link module:link/linkconfig~LinkConfig#decorators `config.link.decorators`}\n\t * documentation.\n\t *\n\t * Here is how to manage decorator attributes with the link command:\n\t *\n\t * ```ts\n\t * const linkCommand = editor.commands.get( 'link' );\n\t *\n\t * // Adding a new decorator attribute.\n\t * linkCommand.execute( 'http://example.com', {\n\t * \tlinkIsExternal: true\n\t * } );\n\t *\n\t * // Removing a decorator attribute from the selection.\n\t * linkCommand.execute( 'http://example.com', {\n\t * \tlinkIsExternal: false\n\t * } );\n\t *\n\t * // Adding multiple decorator attributes at the same time.\n\t * linkCommand.execute( 'http://example.com', {\n\t * \tlinkIsExternal: true,\n\t * \tlinkIsDownloadable: true,\n\t * } );\n\t *\n\t * // Removing and adding decorator attributes at the same time.\n\t * linkCommand.execute( 'http://example.com', {\n\t * \tlinkIsExternal: false,\n\t * \tlinkFoo: true,\n\t * \tlinkIsDownloadable: false,\n\t * } );\n\t * ```\n\t *\n\t * **Note**: If the decorator attribute name is not specified, its state remains untouched.\n\t *\n\t * **Note**: {@link module:link/unlinkcommand~UnlinkCommand#execute `UnlinkCommand#execute()`} removes all\n\t * decorator attributes.\n\t *\n\t * @fires execute\n\t * @param href Link destination.\n\t * @param manualDecoratorIds The information about manual decorator attributes to be applied or removed upon execution.\n\t */\n\tpublic override execute( href: string, manualDecoratorIds: Record<string, boolean> = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\t// Stores information about manual decorators to turn them on/off when command is applied.\n\t\tconst truthyManualDecorators: Array<string> = [];\n\t\tconst falsyManualDecorators: Array<string> = [];\n\n\t\tfor ( const name in manualDecoratorIds ) {\n\t\t\tif ( manualDecoratorIds[ name ] ) {\n\t\t\t\ttruthyManualDecorators.push( name );\n\t\t\t} else {\n\t\t\t\tfalsyManualDecorators.push( name );\n\t\t\t}\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\t// If selection is collapsed then update selected link or insert new one at the place of caret.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tconst position = selection.getFirstPosition()!;\n\n\t\t\t\t// When selection is inside text with `linkHref` attribute.\n\t\t\t\tif ( selection.hasAttribute( 'linkHref' ) ) {\n\t\t\t\t\tconst linkText = extractTextFromSelection( selection );\n\t\t\t\t\t// Then update `linkHref` value.\n\t\t\t\t\tlet linkRange = findAttributeRange( position, 'linkHref', selection.getAttribute( 'linkHref' ), model );\n\n\t\t\t\t\tif ( selection.getAttribute( 'linkHref' ) === linkText ) {\n\t\t\t\t\t\tlinkRange = this._updateLinkContent( model, writer, linkRange, href );\n\t\t\t\t\t}\n\n\t\t\t\t\twriter.setAttribute( 'linkHref', href, linkRange );\n\n\t\t\t\t\ttruthyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.setAttribute( item, true, linkRange );\n\t\t\t\t\t} );\n\n\t\t\t\t\tfalsyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.removeAttribute( item, linkRange );\n\t\t\t\t\t} );\n\n\t\t\t\t\t// Put the selection at the end of the updated link.\n\t\t\t\t\twriter.setSelection( writer.createPositionAfter( linkRange.end.nodeBefore! ) );\n\t\t\t\t}\n\t\t\t\t// If not then insert text node with `linkHref` attribute in place of caret.\n\t\t\t\t// However, since selection is collapsed, attribute value will be used as data for text node.\n\t\t\t\t// So, if `href` is empty, do not create text node.\n\t\t\t\telse if ( href !== '' ) {\n\t\t\t\t\tconst attributes = toMap( selection.getAttributes() );\n\n\t\t\t\t\tattributes.set( 'linkHref', href );\n\n\t\t\t\t\ttruthyManualDecorators.forEach( item => {\n\t\t\t\t\t\tattributes.set( item, true );\n\t\t\t\t\t} );\n\n\t\t\t\t\tconst { end: positionAfter } = model.insertContent( writer.createText( href, attributes ), position );\n\n\t\t\t\t\t// Put the selection at the end of the inserted link.\n\t\t\t\t\t// Using end of range returned from insertContent in case nodes with the same attributes got merged.\n\t\t\t\t\twriter.setSelection( positionAfter );\n\t\t\t\t}\n\n\t\t\t\t// Remove the `linkHref` attribute and all link decorators from the selection.\n\t\t\t\t// It stops adding a new content into the link element.\n\t\t\t\t[ 'linkHref', ...truthyManualDecorators, ...falsyManualDecorators ].forEach( item => {\n\t\t\t\t\twriter.removeSelectionAttribute( item );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\t// If selection has non-collapsed ranges, we change attribute on nodes inside those ranges\n\t\t\t\t// omitting nodes where the `linkHref` attribute is disallowed.\n\t\t\t\tconst ranges = model.schema.getValidRanges( selection.getRanges(), 'linkHref' );\n\n\t\t\t\t// But for the first, check whether the `linkHref` attribute is allowed on selected blocks (e.g. the \"image\" element).\n\t\t\t\tconst allowedRanges = [];\n\n\t\t\t\tfor ( const element of selection.getSelectedBlocks() ) {\n\t\t\t\t\tif ( model.schema.checkAttribute( element, 'linkHref' ) ) {\n\t\t\t\t\t\tallowedRanges.push( writer.createRangeOn( element ) );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Ranges that accept the `linkHref` attribute. Since we will iterate over `allowedRanges`, let's clone it.\n\t\t\t\tconst rangesToUpdate = allowedRanges.slice();\n\n\t\t\t\t// For all selection ranges we want to check whether given range is inside an element that accepts the `linkHref` attribute.\n\t\t\t\t// If so, we don't want to propagate applying the attribute to its children.\n\t\t\t\tfor ( const range of ranges ) {\n\t\t\t\t\tif ( this._isRangeToUpdate( range, allowedRanges ) ) {\n\t\t\t\t\t\trangesToUpdate.push( range );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tfor ( const range of rangesToUpdate ) {\n\t\t\t\t\tlet linkRange = range;\n\n\t\t\t\t\tif ( rangesToUpdate.length === 1 ) {\n\t\t\t\t\t\t// Current text of the link in the document.\n\t\t\t\t\t\tconst linkText = extractTextFromSelection( selection );\n\n\t\t\t\t\t\tif ( selection.getAttribute( 'linkHref' ) === linkText ) {\n\t\t\t\t\t\t\tlinkRange = this._updateLinkContent( model, writer, range, href );\n\t\t\t\t\t\t\twriter.setSelection( writer.createSelection( linkRange ) );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\twriter.setAttribute( 'linkHref', href, linkRange );\n\n\t\t\t\t\ttruthyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.setAttribute( item, true, linkRange );\n\t\t\t\t\t} );\n\n\t\t\t\t\tfalsyManualDecorators.forEach( item => {\n\t\t\t\t\t\twriter.removeAttribute( item, linkRange );\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Provides information whether a decorator with a given name is present in the currently processed selection.\n\t *\n\t * @param decoratorName The name of the manual decorator used in the model\n\t * @returns The information whether a given decorator is currently present in the selection.\n\t */\n\tprivate _getDecoratorStateFromModel( decoratorName: string ): boolean | undefined {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t// A check for the `LinkImage` plugin. If the selection contains an element, get values from the element.\n\t\t// Currently the selection reads attributes from text nodes only. See #7429 and #7465.\n\t\tif ( isLinkableElement( selectedElement, model.schema ) ) {\n\t\t\treturn selectedElement.getAttribute( decoratorName ) as boolean | undefined;\n\t\t}\n\n\t\treturn selection.getAttribute( decoratorName ) as boolean | undefined;\n\t}\n\n\t/**\n\t * Checks whether specified `range` is inside an element that accepts the `linkHref` attribute.\n\t *\n\t * @param range A range to check.\n\t * @param allowedRanges An array of ranges created on elements where the attribute is accepted.\n\t */\n\tprivate _isRangeToUpdate( range: Range, allowedRanges: Array<Range> ): boolean {\n\t\tfor ( const allowedRange of allowedRanges ) {\n\t\t\t// A range is inside an element that will have the `linkHref` attribute. Do not modify its nodes.\n\t\t\tif ( allowedRange.containsRange( range ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\n\t\treturn true;\n\t}\n\n\t/**\n\t * Updates selected link with a new value as its content and as its href attribute.\n\t *\n\t * @param model Model is need to insert content.\n\t * @param writer Writer is need to create text element in model.\n\t * @param range A range where should be inserted content.\n\t * @param href A link value which should be in the href attribute and in the content.\n\t */\n\tprivate _updateLinkContent( model: Model, writer: Writer, range: Range, href: string ): Range {\n\t\tconst text = writer.createText( href, { linkHref: href } );\n\n\t\treturn model.insertContent( text, range );\n\t}\n}\n\n// Returns a text of a link under the collapsed selection or a selection that contains the entire link.\nfunction extractTextFromSelection( selection: DocumentSelection ): string | null {\n\tif ( selection.isCollapsed ) {\n\t\tconst firstPosition = selection.getFirstPosition();\n\n\t\treturn firstPosition!.textNode && firstPosition!.textNode.data;\n\t} else {\n\t\tconst rangeItems = Array.from( selection.getFirstRange()!.getItems() );\n\n\t\tif ( rangeItems.length > 1 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tconst firstNode = rangeItems[ 0 ];\n\n\t\tif ( firstNode.is( '$text' ) || firstNode.is( '$textProxy' ) ) {\n\t\t\treturn firstNode.data;\n\t\t}\n\n\t\treturn null;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/unlinkcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { findAttributeRange } from 'ckeditor5/src/typing';\n\nimport type LinkCommand from './linkcommand';\nimport { isLinkableElement } from './utils';\n\n/**\n * The unlink command. It is used by the {@link module:link/link~Link link plugin}.\n */\nexport default class UnlinkCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t// A check for any integration that allows linking elements (e.g. `LinkImage`).\n\t\t// Currently the selection reads attributes from text nodes only. See #7429 and #7465.\n\t\tif ( isLinkableElement( selectedElement, model.schema ) ) {\n\t\t\tthis.isEnabled = model.schema.checkAttribute( selectedElement, 'linkHref' );\n\t\t} else {\n\t\t\tthis.isEnabled = model.schema.checkAttributeInSelection( selection, 'linkHref' );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is collapsed, it removes the `linkHref` attribute from each node with the same `linkHref` attribute value.\n\t * When the selection is non-collapsed, it removes the `linkHref` attribute from each node in selected ranges.\n\t *\n\t * # Decorators\n\t *\n\t * If {@link module:link/linkconfig~LinkConfig#decorators `config.link.decorators`} is specified,\n\t * all configured decorators are removed together with the `linkHref` attribute.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst linkCommand: LinkCommand | undefined = editor.commands.get( 'link' );\n\n\t\tmodel.change( writer => {\n\t\t\t// Get ranges to unlink.\n\t\t\tconst rangesToUnlink = selection.isCollapsed ?\n\t\t\t\t[ findAttributeRange(\n\t\t\t\t\tselection.getFirstPosition()!,\n\t\t\t\t\t'linkHref',\n\t\t\t\t\tselection.getAttribute( 'linkHref' ),\n\t\t\t\t\tmodel\n\t\t\t\t) ] :\n\t\t\t\tmodel.schema.getValidRanges( selection.getRanges(), 'linkHref' );\n\n\t\t\t// Remove `linkHref` attribute from specified ranges.\n\t\t\tfor ( const range of rangesToUnlink ) {\n\t\t\t\twriter.removeAttribute( 'linkHref', range );\n\t\t\t\t// If there are registered custom attributes, then remove them during unlink.\n\t\t\t\tif ( linkCommand ) {\n\t\t\t\t\tfor ( const manualDecorator of linkCommand.manualDecorators ) {\n\t\t\t\t\t\twriter.removeAttribute( manualDecorator.id, range );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/utils/manualdecorator\n */\n\nimport { ObservableMixin, type ArrayOrItem } from 'ckeditor5/src/utils';\nimport type { MatcherPattern, MatcherObjectPattern } from 'ckeditor5/src/engine';\nimport type { NormalizedLinkDecoratorManualDefinition } from '../utils';\n\n/**\n * Helper class that stores manual decorators with observable {@link module:link/utils/manualdecorator~ManualDecorator#value}\n * to support integration with the UI state. An instance of this class is a model with the state of individual manual decorators.\n * These decorators are kept as collections in {@link module:link/linkcommand~LinkCommand#manualDecorators}.\n */\nexport default class ManualDecorator extends ObservableMixin() {\n\t/**\n\t * An ID of a manual decorator which is the name of the attribute in the model, for example: 'linkManualDecorator0'.\n\t */\n\tpublic id: string;\n\n\t/**\n\t * The value of the current manual decorator. It reflects its state from the UI.\n\t *\n\t * @observable\n\t */\n\tdeclare public value: boolean | undefined;\n\n\t/**\n\t * The default value of manual decorator.\n\t */\n\tpublic defaultValue?: boolean;\n\n\t/**\n\t * The label used in the user interface to toggle the manual decorator.\n\t */\n\tpublic label: string;\n\n\t/**\n\t * A set of attributes added to downcasted data when the decorator is activated for a specific link.\n\t * Attributes should be added in a form of attributes defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t */\n\tpublic attributes?: Record<string, string>;\n\n\t/**\n\t * A set of classes added to downcasted data when the decorator is activated for a specific link.\n\t * Classes should be added in a form of classes defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t */\n\tpublic classes?: ArrayOrItem<string>;\n\n\t/**\n\t * A set of styles added to downcasted data when the decorator is activated for a specific link.\n\t * Styles should be added in a form of styles defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t */\n\tpublic styles?: Record<string, string>;\n\n\t/**\n\t * Creates a new instance of {@link module:link/utils/manualdecorator~ManualDecorator}.\n\t *\n\t * @param config.id The name of the attribute used in the model that represents a given manual decorator.\n\t * For example: `'linkIsExternal'`.\n\t * @param config.label The label used in the user interface to toggle the manual decorator.\n\t * @param config.attributes A set of attributes added to output data when the decorator is active for a specific link.\n\t * Attributes should keep the format of attributes defined in {@link module:engine/view/elementdefinition~ElementDefinition}.\n\t * @param [config.defaultValue] Controls whether the decorator is \"on\" by default.\n\t */\n\tconstructor( { id, label, attributes, classes, styles, defaultValue }: NormalizedLinkDecoratorManualDefinition ) {\n\t\tsuper();\n\n\t\tthis.id = id;\n\t\tthis.set( 'value', undefined );\n\t\tthis.defaultValue = defaultValue;\n\t\tthis.label = label;\n\t\tthis.attributes = attributes;\n\t\tthis.classes = classes;\n\t\tthis.styles = styles;\n\t}\n\n\t/**\n\t * Returns {@link module:engine/view/matcher~MatcherPattern} with decorator attributes.\n\t *\n\t * @internal\n\t */\n\tpublic _createPattern(): MatcherObjectPattern {\n\t\treturn {\n\t\t\tattributes: this.attributes,\n\t\t\tclasses: this.classes,\n\t\t\tstyles: this.styles\n\t\t};\n\t}\n}\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./link.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/linkediting\n */\n\nimport {\n\tPlugin,\n\ttype Editor\n} from 'ckeditor5/src/core';\nimport {\n\tMouseObserver,\n\ttype Model,\n\ttype Schema,\n\ttype Writer,\n\ttype ViewElement,\n\ttype ModelDeleteContentEvent,\n\ttype ModelInsertContentEvent,\n\ttype ViewDocumentKeyDownEvent,\n\ttype ViewDocumentMouseDownEvent,\n\ttype ViewDocumentClickEvent,\n\ttype ViewDocumentSelectionChangeEvent\n} from 'ckeditor5/src/engine';\nimport {\n\tInput,\n\tTwoStepCaretMovement,\n\tinlineHighlight,\n\tfindAttributeRange,\n\ttype ViewDocumentDeleteEvent\n} from 'ckeditor5/src/typing';\nimport {\n\tClipboardPipeline,\n\ttype ClipboardContentInsertionEvent\n} from 'ckeditor5/src/clipboard';\nimport { keyCodes, env } from 'ckeditor5/src/utils';\n\nimport LinkCommand from './linkcommand';\nimport UnlinkCommand from './unlinkcommand';\nimport ManualDecorator from './utils/manualdecorator';\nimport {\n\tcreateLinkElement,\n\tensureSafeUrl,\n\tgetLocalizedDecorators,\n\tnormalizeDecorators,\n\topenLink,\n\taddLinkProtocolIfApplicable,\n\ttype NormalizedLinkDecoratorAutomaticDefinition,\n\ttype NormalizedLinkDecoratorManualDefinition\n} from './utils';\n\nimport '../theme/link.css';\n\nconst HIGHLIGHT_CLASS = 'ck-link_selected';\nconst DECORATOR_AUTOMATIC = 'automatic';\nconst DECORATOR_MANUAL = 'manual';\nconst EXTERNAL_LINKS_REGEXP = /^(https?:)?\\/\\//;\n\n/**\n * The link engine feature.\n *\n * It introduces the `linkHref=\"url\"` attribute in the model which renders to the view as a `<a href=\"url\">` element\n * as well as `'link'` and `'unlink'` commands.\n */\nexport default class LinkEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'LinkEditing' {\n\t\treturn 'LinkEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\t// Clipboard is required for handling cut and paste events while typing over the link.\n\t\treturn [ TwoStepCaretMovement, Input, ClipboardPipeline ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'link', {\n\t\t\taddTargetToExternalLinks: false\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Allow link attribute on all inline nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: 'linkHref' } );\n\n\t\teditor.conversion.for( 'dataDowncast' )\n\t\t\t.attributeToElement( { model: 'linkHref', view: createLinkElement } );\n\n\t\teditor.conversion.for( 'editingDowncast' )\n\t\t\t.attributeToElement( { model: 'linkHref', view: ( href, conversionApi ) => {\n\t\t\t\treturn createLinkElement( ensureSafeUrl( href ), conversionApi );\n\t\t\t} } );\n\n\t\teditor.conversion.for( 'upcast' )\n\t\t\t.elementToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'a',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\thref: true\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: 'linkHref',\n\t\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getAttribute( 'href' )\n\t\t\t\t}\n\t\t\t} );\n\n\t\t// Create linking commands.\n\t\teditor.commands.add( 'link', new LinkCommand( editor ) );\n\t\teditor.commands.add( 'unlink', new UnlinkCommand( editor ) );\n\n\t\tconst linkDecorators = getLocalizedDecorators( editor.t, normalizeDecorators( editor.config.get( 'link.decorators' ) ) );\n\n\t\tthis._enableAutomaticDecorators( linkDecorators\n\t\t\t.filter( ( item ): item is NormalizedLinkDecoratorAutomaticDefinition => item.mode === DECORATOR_AUTOMATIC ) );\n\t\tthis._enableManualDecorators( linkDecorators\n\t\t\t.filter( ( item ): item is NormalizedLinkDecoratorManualDefinition => item.mode === DECORATOR_MANUAL ) );\n\n\t\t// Enable two-step caret movement for `linkHref` attribute.\n\t\tconst twoStepCaretMovementPlugin = editor.plugins.get( TwoStepCaretMovement );\n\t\ttwoStepCaretMovementPlugin.registerAttribute( 'linkHref' );\n\n\t\t// Setup highlight over selected link.\n\t\tinlineHighlight( editor, 'linkHref', 'a', HIGHLIGHT_CLASS );\n\n\t\t// hack to fix https://github.com/zadam/trilium/issues/3630\n\t\t// Handle link following by CTRL+click or ALT+ENTER\n\t\t// this._enableLinkOpen();\n\n\t\t// Change the attributes of the selection in certain situations after the link was inserted into the document.\n\t\tthis._enableInsertContentSelectionAttributesFixer();\n\n\t\t// Handle a click at the beginning/end of a link element.\n\t\tthis._enableClickingAfterLink();\n\n\t\t// Handle typing over the link.\n\t\tthis._enableTypingOverLink();\n\n\t\t// Handle removing the content after the link element.\n\t\tthis._handleDeleteContentAfterLink();\n\n\t\t// Handle adding default protocol to pasted links.\n\t\tthis._enableClipboardIntegration();\n\t}\n\n\t/**\n\t * Processes an array of configured {@link module:link/linkconfig~LinkDecoratorAutomaticDefinition automatic decorators}\n\t * and registers a {@link module:engine/conversion/downcastdispatcher~DowncastDispatcher downcast dispatcher}\n\t * for each one of them. Downcast dispatchers are obtained using the\n\t * {@link module:link/utils/automaticdecorators~AutomaticDecorators#getDispatcher} method.\n\t *\n\t * **Note**: This method also activates the automatic external link decorator if enabled with\n\t * {@link module:link/linkconfig~LinkConfig#addTargetToExternalLinks `config.link.addTargetToExternalLinks`}.\n\t */\n\tprivate _enableAutomaticDecorators( automaticDecoratorDefinitions: Array<NormalizedLinkDecoratorAutomaticDefinition> ): void {\n\t\tconst editor = this.editor;\n\t\t// Store automatic decorators in the command instance as we do the same with manual decorators.\n\t\t// Thanks to that, `LinkImageEditing` plugin can re-use the same definitions.\n\t\tconst command: LinkCommand = editor.commands.get( 'link' )!;\n\t\tconst automaticDecorators = command.automaticDecorators;\n\n\t\t// Adds a default decorator for external links.\n\t\tif ( editor.config.get( 'link.addTargetToExternalLinks' ) ) {\n\t\t\tautomaticDecorators.add( {\n\t\t\t\tid: 'linkIsExternal',\n\t\t\t\tmode: DECORATOR_AUTOMATIC,\n\t\t\t\tcallback: url => !!url && EXTERNAL_LINKS_REGEXP.test( url ),\n\t\t\t\tattributes: {\n\t\t\t\t\ttarget: '_blank',\n\t\t\t\t\trel: 'noopener noreferrer'\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\tautomaticDecorators.add( automaticDecoratorDefinitions );\n\n\t\tif ( automaticDecorators.length ) {\n\t\t\teditor.conversion.for( 'downcast' ).add( automaticDecorators.getDispatcher() );\n\t\t}\n\t}\n\n\t/**\n\t * Processes an array of configured {@link module:link/linkconfig~LinkDecoratorManualDefinition manual decorators},\n\t * transforms them into {@link module:link/utils/manualdecorator~ManualDecorator} instances and stores them in the\n\t * {@link module:link/linkcommand~LinkCommand#manualDecorators} collection (a model for manual decorators state).\n\t *\n\t * Also registers an {@link module:engine/conversion/downcasthelpers~DowncastHelpers#attributeToElement attribute-to-element}\n\t * converter for each manual decorator and extends the {@link module:engine/model/schema~Schema model's schema}\n\t * with adequate model attributes.\n\t */\n\tprivate _enableManualDecorators( manualDecoratorDefinitions: Array<NormalizedLinkDecoratorManualDefinition> ): void {\n\t\tif ( !manualDecoratorDefinitions.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst command: LinkCommand = editor.commands.get( 'link' )!;\n\t\tconst manualDecorators = command.manualDecorators;\n\n\t\tmanualDecoratorDefinitions.forEach( decoratorDefinition => {\n\t\t\teditor.model.schema.extend( '$text', { allowAttributes: decoratorDefinition.id } );\n\n\t\t\t// Keeps reference to manual decorator to decode its name to attributes during downcast.\n\t\t\tconst decorator = new ManualDecorator( decoratorDefinition );\n\n\t\t\tmanualDecorators.add( decorator );\n\n\t\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\t\tmodel: decorator.id,\n\t\t\t\tview: ( manualDecoratorValue, { writer, schema }, { item } ) => {\n\t\t\t\t\t// Manual decorators for block links are handled e.g. in LinkImageEditing.\n\t\t\t\t\tif ( !( item.is( 'selection' ) || schema.isInline( item ) ) ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( manualDecoratorValue ) {\n\t\t\t\t\t\tconst element = writer.createAttributeElement( 'a', decorator.attributes, { priority: 5 } );\n\n\t\t\t\t\t\tif ( decorator.classes ) {\n\t\t\t\t\t\t\twriter.addClass( decorator.classes, element );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tfor ( const key in decorator.styles ) {\n\t\t\t\t\t\t\twriter.setStyle( key, decorator.styles[ key ], element );\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\twriter.setCustomProperty( 'link', true, element );\n\n\t\t\t\t\t\treturn element;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'a',\n\t\t\t\t\t...decorator._createPattern()\n\t\t\t\t},\n\t\t\t\tmodel: {\n\t\t\t\t\tkey: decorator.id\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches handlers for {@link module:engine/view/document~Document#event:enter} and\n\t * {@link module:engine/view/document~Document#event:click} to enable link following.\n\t */\n\tprivate _enableLinkOpen(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tthis.listenTo<ViewDocumentClickEvent>( viewDocument, 'click', ( evt, data ) => {\n\t\t\tconst shouldOpen = env.isMac ? data.domEvent.metaKey : data.domEvent.ctrlKey;\n\n\t\t\tif ( !shouldOpen ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet clickedElement: Element | null = data.domTarget;\n\n\t\t\tif ( clickedElement.tagName.toLowerCase() != 'a' ) {\n\t\t\t\tclickedElement = clickedElement.closest( 'a' );\n\t\t\t}\n\n\t\t\tif ( !clickedElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst url = clickedElement.getAttribute( 'href' );\n\n\t\t\tif ( !url ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\t\t\tdata.preventDefault();\n\n\t\t\topenLink( url );\n\t\t}, { context: '$capture' } );\n\n\t\t// Open link on Alt+Enter.\n\t\tthis.listenTo<ViewDocumentKeyDownEvent>( viewDocument, 'keydown', ( evt, data ) => {\n\t\t\tconst linkCommand: LinkCommand = editor.commands.get( 'link' )!;\n\t\t\tconst url = linkCommand!.value;\n\t\t\tconst shouldOpen = !!url && data.keyCode === keyCodes.enter && data.altKey;\n\n\t\t\tif ( !shouldOpen ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tevt.stop();\n\n\t\t\topenLink( url );\n\t\t} );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#event:insertContent} and corrects the model\n\t * selection attributes if the selection is at the end of a link after inserting the content.\n\t *\n\t * The purpose of this action is to improve the overall UX because the user is no longer \"trapped\" by the\n\t * `linkHref` attribute of the selection and they can type a \"clean\" (`linkHref`–less) text right away.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/6053.\n\t */\n\tprivate _enableInsertContentSelectionAttributesFixer(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\tthis.listenTo<ModelInsertContentEvent>( model, 'insertContent', () => {\n\t\t\tconst nodeBefore = selection.anchor!.nodeBefore;\n\t\t\tconst nodeAfter = selection.anchor!.nodeAfter;\n\n\t\t\t// NOTE: ↰ and ↱ represent the gravity of the selection.\n\n\t\t\t// The only truly valid case is:\n\t\t\t//\n\t\t\t//\t\t                                 ↰\n\t\t\t//\t\t...<$text linkHref=\"foo\">INSERTED[]</$text>\n\t\t\t//\n\t\t\t// If the selection is not \"trapped\" by the `linkHref` attribute after inserting, there's nothing\n\t\t\t// to fix there.\n\t\t\tif ( !selection.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out the following case where a link with the same href (e.g. <a href=\"foo\">INSERTED</a>) is inserted\n\t\t\t// in the middle of an existing link:\n\t\t\t//\n\t\t\t// Before insertion:\n\t\t\t//\t\t                       ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">l[]ink</$text>\n\t\t\t//\n\t\t\t// Expected after insertion:\n\t\t\t//\t\t                               ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">lINSERTED[]ink</$text>\n\t\t\t//\n\t\t\tif ( !nodeBefore ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out the following case where the selection has the \"linkHref\" attribute because the\n\t\t\t// gravity is overridden and some text with another attribute (e.g. <b>INSERTED</b>) is inserted:\n\t\t\t//\n\t\t\t// Before insertion:\n\t\t\t//\n\t\t\t//\t\t                       ↱\n\t\t\t//\t\t<$text linkHref=\"foo\">[]link</$text>\n\t\t\t//\n\t\t\t// Expected after insertion:\n\t\t\t//\n\t\t\t//\t\t                                                          ↱\n\t\t\t//\t\t<$text bold=\"true\">INSERTED</$text><$text linkHref=\"foo\">[]link</$text>\n\t\t\t//\n\t\t\tif ( !nodeBefore.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Filter out the following case where a link is a inserted in the middle (or before) another link\n\t\t\t// (different URLs, so they will not merge). In this (let's say weird) case, we can leave the selection\n\t\t\t// attributes as they are because the user will end up writing in one link or another anyway.\n\t\t\t//\n\t\t\t// Before insertion:\n\t\t\t//\n\t\t\t//\t\t                       ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">l[]ink</$text>\n\t\t\t//\n\t\t\t// Expected after insertion:\n\t\t\t//\n\t\t\t//\t\t                                                             ↰\n\t\t\t//\t\t<$text linkHref=\"foo\">l</$text><$text linkHref=\"bar\">INSERTED[]</$text><$text linkHref=\"foo\">ink</$text>\n\t\t\t//\n\t\t\tif ( nodeAfter && nodeAfter.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tremoveLinkAttributesFromSelection( writer, getLinkAttributesAllowedOnText( model.schema ) );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/view/document~Document#event:mousedown} and\n\t * {@link module:engine/view/document~Document#event:selectionChange} and puts the selection before/after a link node\n\t * if clicked at the beginning/ending of the link.\n\t *\n\t * The purpose of this action is to allow typing around the link node directly after a click.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/1016.\n\t */\n\tprivate _enableClickingAfterLink(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\teditor.editing.view.addObserver( MouseObserver );\n\n\t\tlet clicked = false;\n\n\t\t// Detect the click.\n\t\tthis.listenTo<ViewDocumentMouseDownEvent>( editor.editing.view.document, 'mousedown', () => {\n\t\t\tclicked = true;\n\t\t} );\n\n\t\t// When the selection has changed...\n\t\tthis.listenTo<ViewDocumentSelectionChangeEvent>( editor.editing.view.document, 'selectionChange', () => {\n\t\t\tif ( !clicked ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// ...and it was caused by the click...\n\t\t\tclicked = false;\n\n\t\t\tconst selection = model.document.selection;\n\n\t\t\t// ...and no text is selected...\n\t\t\tif ( !selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// ...and clicked text is the link...\n\t\t\tif ( !selection.hasAttribute( 'linkHref' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst position = selection.getFirstPosition()!;\n\t\t\tconst linkRange = findAttributeRange( position, 'linkHref', selection.getAttribute( 'linkHref' ), model );\n\n\t\t\t// ...check whether clicked start/end boundary of the link.\n\t\t\t// If so, remove the `linkHref` attribute.\n\t\t\tif ( position.isTouching( linkRange.start ) || position.isTouching( linkRange.end ) ) {\n\t\t\t\tmodel.change( writer => {\n\t\t\t\t\tremoveLinkAttributesFromSelection( writer, getLinkAttributesAllowedOnText( model.schema ) );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#deleteContent} and {@link module:engine/model/model~Model#insertContent}\n\t * and checks whether typing over the link. If so, attributes of removed text are preserved and applied to the inserted text.\n\t *\n\t * The purpose of this action is to allow modifying a text without loosing the `linkHref` attribute (and other).\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/4762.\n\t */\n\tprivate _enableTypingOverLink(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\n\t\t// Selection attributes when started typing over the link.\n\t\tlet selectionAttributes: IterableIterator<[ string, unknown ]> | null = null;\n\n\t\t// Whether pressed `Backspace` or `Delete`. If so, attributes should not be preserved.\n\t\tlet deletedContent = false;\n\n\t\t// Detect pressing `Backspace` / `Delete`.\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( view.document, 'delete', () => {\n\t\t\tdeletedContent = true;\n\t\t}, { priority: 'high' } );\n\n\t\t// Listening to `model#deleteContent` allows detecting whether selected content was a link.\n\t\t// If so, before removing the element, we will copy its attributes.\n\t\tthis.listenTo<ModelDeleteContentEvent>( editor.model, 'deleteContent', () => {\n\t\t\tconst selection = editor.model.document.selection;\n\n\t\t\t// Copy attributes only if anything is selected.\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// When the content was deleted, do not preserve attributes.\n\t\t\tif ( deletedContent ) {\n\t\t\t\tdeletedContent = false;\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Enabled only when typing.\n\t\t\tif ( !isTyping( editor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( shouldCopyAttributes( editor.model ) ) {\n\t\t\t\tselectionAttributes = selection.getAttributes();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// Listening to `model#insertContent` allows detecting the content insertion.\n\t\t// We want to apply attributes that were removed while typing over the link.\n\t\tthis.listenTo( editor.model, 'insertContent', ( evt, [ element ] ) => {\n\t\t\tdeletedContent = false;\n\n\t\t\t// Enabled only when typing.\n\t\t\tif ( !isTyping( editor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !selectionAttributes ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.model.change( writer => {\n\t\t\t\tfor ( const [ attribute, value ] of selectionAttributes! ) {\n\t\t\t\t\twriter.setAttribute( attribute, value, element );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tselectionAttributes = null;\n\t\t}, { priority: 'high' } );\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#deleteContent} and checks whether\n\t * removing a content right after the \"linkHref\" attribute.\n\t *\n\t * If so, the selection should not preserve the `linkHref` attribute. However, if\n\t * the {@link module:typing/twostepcaretmovement~TwoStepCaretMovement} plugin is active and\n\t * the selection has the \"linkHref\" attribute due to overriden gravity (at the end), the `linkHref` attribute should stay untouched.\n\t *\n\t * The purpose of this action is to allow removing the link text and keep the selection outside the link.\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/7521.\n\t */\n\tprivate _handleDeleteContentAfterLink(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst view = editor.editing.view;\n\n\t\t// A flag whether attributes `linkHref` attribute should be preserved.\n\t\tlet shouldPreserveAttributes = false;\n\n\t\t// A flag whether the `Backspace` key was pressed.\n\t\tlet hasBackspacePressed = false;\n\n\t\t// Detect pressing `Backspace`.\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( view.document, 'delete', ( evt, data ) => {\n\t\t\thasBackspacePressed = data.direction === 'backward';\n\t\t}, { priority: 'high' } );\n\n\t\t// Before removing the content, check whether the selection is inside a link or at the end of link but with 2-SCM enabled.\n\t\t// If so, we want to preserve link attributes.\n\t\tthis.listenTo<ModelDeleteContentEvent>( model, 'deleteContent', () => {\n\t\t\t// Reset the state.\n\t\t\tshouldPreserveAttributes = false;\n\n\t\t\tconst position = selection.getFirstPosition()!;\n\t\t\tconst linkHref = selection.getAttribute( 'linkHref' );\n\n\t\t\tif ( !linkHref ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst linkRange = findAttributeRange( position, 'linkHref', linkHref, model );\n\n\t\t\t// Preserve `linkHref` attribute if the selection is in the middle of the link or\n\t\t\t// the selection is at the end of the link and 2-SCM is activated.\n\t\t\tshouldPreserveAttributes = linkRange.containsPosition( position ) || linkRange.end.isEqual( position );\n\t\t}, { priority: 'high' } );\n\n\t\t// After removing the content, check whether the current selection should preserve the `linkHref` attribute.\n\t\tthis.listenTo<ModelDeleteContentEvent>( model, 'deleteContent', () => {\n\t\t\t// If didn't press `Backspace`.\n\t\t\tif ( !hasBackspacePressed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\thasBackspacePressed = false;\n\n\t\t\t// Disable the mechanism if inside a link (`<$text url=\"foo\">F[]oo</$text>` or <$text url=\"foo\">Foo[]</$text>`).\n\t\t\tif ( shouldPreserveAttributes ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Use `model.enqueueChange()` in order to execute the callback at the end of the changes process.\n\t\t\teditor.model.enqueueChange( writer => {\n\t\t\t\tremoveLinkAttributesFromSelection( writer, getLinkAttributesAllowedOnText( model.schema ) );\n\t\t\t} );\n\t\t}, { priority: 'low' } );\n\t}\n\n\t/**\n\t * Enables URL fixing on pasting.\n\t */\n\tprivate _enableClipboardIntegration(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst defaultProtocol = this.editor.config.get( 'link.defaultProtocol' );\n\n\t\tif ( !defaultProtocol ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.listenTo<ClipboardContentInsertionEvent>( editor.plugins.get( 'ClipboardPipeline' ), 'contentInsertion', ( evt, data ) => {\n\t\t\tmodel.change( writer => {\n\t\t\t\tconst range = writer.createRangeIn( data.content );\n\n\t\t\t\tfor ( const item of range.getItems() ) {\n\t\t\t\t\tif ( item.hasAttribute( 'linkHref' ) ) {\n\t\t\t\t\t\tconst newLink = addLinkProtocolIfApplicable( item.getAttribute( 'linkHref' ) as string, defaultProtocol );\n\n\t\t\t\t\t\twriter.setAttribute( 'linkHref', newLink, item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n}\n\n/**\n * Make the selection free of link-related model attributes.\n * All link-related model attributes start with \"link\". That includes not only \"linkHref\"\n * but also all decorator attributes (they have dynamic names), or even custom plugins.\n */\nfunction removeLinkAttributesFromSelection( writer: Writer, linkAttributes: Array<string> ): void {\n\twriter.removeSelectionAttribute( 'linkHref' );\n\n\tfor ( const attribute of linkAttributes ) {\n\t\twriter.removeSelectionAttribute( attribute );\n\t}\n}\n\n/**\n * Checks whether selection's attributes should be copied to the new inserted text.\n */\nfunction shouldCopyAttributes( model: Model ): boolean {\n\tconst selection = model.document.selection;\n\tconst firstPosition = selection.getFirstPosition()!;\n\tconst lastPosition = selection.getLastPosition()!;\n\tconst nodeAtFirstPosition = firstPosition.nodeAfter;\n\n\t// The text link node does not exist...\n\tif ( !nodeAtFirstPosition ) {\n\t\treturn false;\n\t}\n\n\t// ...or it isn't the text node...\n\tif ( !nodeAtFirstPosition.is( '$text' ) ) {\n\t\treturn false;\n\t}\n\n\t// ...or isn't the link.\n\tif ( !nodeAtFirstPosition.hasAttribute( 'linkHref' ) ) {\n\t\treturn false;\n\t}\n\n\t// `textNode` = the position is inside the link element.\n\t// `nodeBefore` = the position is at the end of the link element.\n\tconst nodeAtLastPosition = lastPosition.textNode || lastPosition.nodeBefore;\n\n\t// If both references the same node selection contains a single text node.\n\tif ( nodeAtFirstPosition === nodeAtLastPosition ) {\n\t\treturn true;\n\t}\n\n\t// If nodes are not equal, maybe the link nodes has defined additional attributes inside.\n\t// First, we need to find the entire link range.\n\tconst linkRange = findAttributeRange( firstPosition, 'linkHref', nodeAtFirstPosition.getAttribute( 'linkHref' ), model );\n\n\t// Then we can check whether selected range is inside the found link range. If so, attributes should be preserved.\n\treturn linkRange.containsRange( model.createRange( firstPosition, lastPosition ), true );\n}\n\n/**\n * Checks whether provided changes were caused by typing.\n */\nfunction isTyping( editor: Editor ): boolean {\n\tconst currentBatch = editor.model.change( writer => writer.batch );\n\n\treturn currentBatch.isTyping;\n}\n\n/**\n * Returns an array containing names of the attributes allowed on `$text` that describes the link item.\n */\nfunction getLinkAttributesAllowedOnText( schema: Schema ): Array<string> {\n\tconst textAttributes = schema.getDefinition( '$text' )!.allowAttributes;\n\n\treturn textAttributes.filter( attribute => attribute.startsWith( 'link' ) );\n}\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./linkform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/ui/linkformview\n */\n\nimport {\n\tButtonView,\n\tFocusCycler,\n\tLabeledFieldView,\n\tSwitchButtonView,\n\tView,\n\tViewCollection,\n\tcreateLabeledInputText,\n\tsubmitHandler,\n\ttype InputTextView\n} from 'ckeditor5/src/ui';\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\ttype Collection,\n\ttype Locale\n} from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport type LinkCommand from '../linkcommand';\nimport type ManualDecorator from '../utils/manualdecorator';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\nimport '../../theme/linkform.css';\n\n/**\n * The link form view controller class.\n *\n * See {@link module:link/ui/linkformview~LinkFormView}.\n */\nexport default class LinkFormView extends View {\n\t/**\n\t * Tracks information about DOM focus in the form.\n\t */\n\tpublic readonly focusTracker = new FocusTracker();\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes = new KeystrokeHandler();\n\n\t/**\n\t * The URL input view.\n\t */\n\tpublic urlInputView: LabeledFieldView<InputTextView>;\n\n\t/**\n\t * The Save button view.\n\t */\n\tpublic saveButtonView: ButtonView;\n\n\t/**\n\t * The Cancel button view.\n\t */\n\tpublic cancelButtonView: ButtonView;\n\n\t/**\n\t * A collection of {@link module:ui/button/switchbuttonview~SwitchButtonView},\n\t * which corresponds to {@link module:link/linkcommand~LinkCommand#manualDecorators manual decorators}\n\t * configured in the editor.\n\t */\n\tprivate readonly _manualDecoratorSwitches: ViewCollection;\n\n\t/**\n\t * A collection of child views in the form.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * A collection of views that can be focused in the form.\n\t */\n\tprivate readonly _focusables = new ViewCollection();\n\n\t/**\n\t * Helps cycling over {@link #_focusables} in the form.\n\t */\n\tprivate readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * Creates an instance of the {@link module:link/ui/linkformview~LinkFormView} class.\n\t *\n\t * Also see {@link #render}.\n\t *\n\t * @param locale The localization services instance.\n\t * @param linkCommand Reference to {@link module:link/linkcommand~LinkCommand}.\n\t */\n\tconstructor( locale: Locale, linkCommand: LinkCommand ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\tthis.urlInputView = this._createUrlInput();\n\t\tthis.saveButtonView = this._createButton( t( 'Save' ), icons.check, 'ck-button-save' );\n\t\tthis.saveButtonView.type = 'submit';\n\t\tthis.cancelButtonView = this._createButton( t( 'Cancel' ), icons.cancel, 'ck-button-cancel', 'cancel' );\n\t\tthis._manualDecoratorSwitches = this._createManualDecoratorSwitches( linkCommand );\n\t\tthis.children = this._createFormChildren( linkCommand.manualDecorators );\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tconst classList = [ 'ck', 'ck-link-form', 'ck-responsive-form' ];\n\n\t\tif ( linkCommand.manualDecorators.length ) {\n\t\t\tclassList.push( 'ck-link-form_layout-vertical', 'ck-vertical-form' );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\n\t\t\tattributes: {\n\t\t\t\tclass: classList,\n\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * Obtains the state of the {@link module:ui/button/switchbuttonview~SwitchButtonView switch buttons} representing\n\t * {@link module:link/linkcommand~LinkCommand#manualDecorators manual link decorators}\n\t * in the {@link module:link/ui/linkformview~LinkFormView}.\n\t *\n\t * @returns Key-value pairs, where the key is the name of the decorator and the value is its state.\n\t */\n\tpublic getDecoratorSwitchesState(): Record<string, boolean> {\n\t\treturn Array\n\t\t\t.from( this._manualDecoratorSwitches as Iterable<SwitchButtonView & { name: string }> )\n\t\t\t.reduce( ( accumulator, switchButton ) => {\n\t\t\t\taccumulator[ switchButton.name ] = switchButton.isOn;\n\t\t\t\treturn accumulator;\n\t\t\t}, {} as Record<string, boolean> );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\tconst childViews = [\n\t\t\tthis.urlInputView,\n\t\t\t...this._manualDecoratorSwitches,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( v );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( v.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist {@link #_focusables} in the form.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates a labeled input view.\n\t *\n\t * @returns Labeled field view instance.\n\t */\n\tprivate _createUrlInput(): LabeledFieldView<InputTextView> {\n\t\tconst t = this.locale!.t;\n\t\tconst labeledInput = new LabeledFieldView( this.locale, createLabeledInputText );\n\n\t\tlabeledInput.label = t( 'Link URL' );\n\n\t\treturn labeledInput;\n\t}\n\n\t/**\n\t * Creates a button view.\n\t *\n\t * @param label The button label.\n\t * @param icon The button icon.\n\t * @param className The additional button CSS class name.\n\t * @param eventName An event name that the `ButtonView#execute` event will be delegated to.\n\t * @returns The button view instance.\n\t */\n\tprivate _createButton( label: string, icon: string, className: string, eventName?: string ): ButtonView {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: className\n\t\t\t}\n\t\t} );\n\n\t\tif ( eventName ) {\n\t\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\t\t}\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Populates {@link module:ui/viewcollection~ViewCollection} of {@link module:ui/button/switchbuttonview~SwitchButtonView}\n\t * made based on {@link module:link/linkcommand~LinkCommand#manualDecorators}.\n\t *\n\t * @param linkCommand A reference to the link command.\n\t * @returns ViewCollection of switch buttons.\n\t */\n\tprivate _createManualDecoratorSwitches( linkCommand: LinkCommand ): ViewCollection {\n\t\tconst switches = this.createCollection();\n\n\t\tfor ( const manualDecorator of linkCommand.manualDecorators ) {\n\t\t\tconst switchButton: SwitchButtonView & { name?: string } = new SwitchButtonView( this.locale );\n\n\t\t\tswitchButton.set( {\n\t\t\t\tname: manualDecorator.id,\n\t\t\t\tlabel: manualDecorator.label,\n\t\t\t\twithText: true\n\t\t\t} );\n\n\t\t\tswitchButton.bind( 'isOn' ).toMany( [ manualDecorator, linkCommand ], 'value', ( decoratorValue, commandValue ) => {\n\t\t\t\treturn commandValue === undefined && decoratorValue === undefined ? !!manualDecorator.defaultValue : !!decoratorValue;\n\t\t\t} );\n\n\t\t\tswitchButton.on( 'execute', () => {\n\t\t\t\tmanualDecorator.set( 'value', !switchButton.isOn );\n\t\t\t} );\n\n\t\t\tswitches.add( switchButton );\n\t\t}\n\n\t\treturn switches;\n\t}\n\n\t/**\n\t * Populates the {@link #children} collection of the form.\n\t *\n\t * If {@link module:link/linkcommand~LinkCommand#manualDecorators manual decorators} are configured in the editor, it creates an\n\t * additional `View` wrapping all {@link #_manualDecoratorSwitches} switch buttons corresponding\n\t * to these decorators.\n\t *\n\t * @param manualDecorators A reference to\n\t * the collection of manual decorators stored in the link command.\n\t * @returns The children of link form view.\n\t */\n\tprivate _createFormChildren( manualDecorators: Collection<ManualDecorator> ): ViewCollection {\n\t\tconst children = this.createCollection();\n\n\t\tchildren.add( this.urlInputView );\n\n\t\tif ( manualDecorators.length ) {\n\t\t\tconst additionalButtonsView = new View();\n\n\t\t\tadditionalButtonsView.setTemplate( {\n\t\t\t\ttag: 'ul',\n\t\t\t\tchildren: this._manualDecoratorSwitches.map( switchButton => ( {\n\t\t\t\t\ttag: 'li',\n\t\t\t\t\tchildren: [ switchButton ],\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-list__item'\n\t\t\t\t\t\t]\n\t\t\t\t\t}\n\t\t\t\t} ) ),\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t'ck-reset',\n\t\t\t\t\t\t'ck-list'\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\t\t\tchildren.add( additionalButtonsView );\n\t\t}\n\n\t\tchildren.add( this.saveButtonView );\n\t\tchildren.add( this.cancelButtonView );\n\n\t\treturn children;\n\t}\n}\n\n/**\n * Fired when the form view is submitted (when one of the children triggered the submit event),\n * for example with a click on {@link ~LinkFormView#saveButtonView}.\n *\n * @eventName ~LinkFormView#submit\n */\nexport type SubmitEvent = {\n\tname: 'submit';\n\targs: [];\n};\n\n/**\n * Fired when the form view is canceled, for example with a click on {@link ~LinkFormView#cancelButtonView}.\n *\n * @eventName ~LinkFormView#cancel\n */\nexport type CancelEvent = {\n\tname: 'cancel';\n\targs: [];\n};\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./linkactions.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/ui/linkactionsview\n */\n\nimport { ButtonView, View, ViewCollection, FocusCycler } from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler, type LocaleTranslate, type Locale } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport { ensureSafeUrl } from '../utils';\n\n// See: #8833.\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport '@ckeditor/ckeditor5-ui/theme/components/responsive-form/responsiveform.css';\nimport '../../theme/linkactions.css';\n\nimport unlinkIcon from '../../theme/icons/unlink.svg';\n\n/**\n * The link actions view class. This view displays the link preview, allows\n * unlinking or editing the link.\n */\nexport default class LinkActionsView extends View {\n\t/**\n\t * Tracks information about DOM focus in the actions.\n\t */\n\tpublic readonly focusTracker = new FocusTracker();\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes = new KeystrokeHandler();\n\n\t/**\n\t * The href preview view.\n\t */\n\tpublic previewButtonView: View;\n\n\t/**\n\t * The unlink button view.\n\t */\n\tpublic unlinkButtonView: ButtonView;\n\n\t/**\n\t * The edit link button view.\n\t */\n\tpublic editButtonView: ButtonView;\n\n\t/**\n\t * The value of the \"href\" attribute of the link to use in the {@link #previewButtonView}.\n\t *\n\t * @observable\n\t */\n\tdeclare public href: string | undefined;\n\n\t/**\n\t * A collection of views that can be focused in the view.\n\t */\n\tprivate readonly _focusables = new ViewCollection();\n\n\t/**\n\t * Helps cycling over {@link #_focusables} in the view.\n\t */\n\tprivate readonly _focusCycler: FocusCycler;\n\n\tdeclare public t: LocaleTranslate;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\tthis.previewButtonView = this._createPreviewButton();\n\t\tthis.unlinkButtonView = this._createButton( t( 'Unlink' ), unlinkIcon, 'unlink' );\n\t\tthis.editButtonView = this._createButton( t( 'Edit link' ), icons.pencil, 'edit' );\n\n\t\tthis.set( 'href', undefined );\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-link-actions',\n\t\t\t\t\t'ck-responsive-form'\n\t\t\t\t],\n\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\tthis.previewButtonView,\n\t\t\t\tthis.editButtonView,\n\t\t\t\tthis.unlinkButtonView\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tconst childViews = [\n\t\t\tthis.previewButtonView,\n\t\t\tthis.editButtonView,\n\t\t\tthis.unlinkButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( v );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( v.element! );\n\t\t} );\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist {@link #_focusables} in the actions.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates a button view.\n\t *\n\t * @param label The button label.\n\t * @param icon The button icon.\n\t * @param eventName An event name that the `ButtonView#execute` event will be delegated to.\n\t * @returns The button view instance.\n\t */\n\tprivate _createButton( label: string, icon: string, eventName?: string ): ButtonView {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * Creates a link href preview button.\n\t *\n\t * @returns The button view instance.\n\t */\n\tprivate _createPreviewButton(): ButtonView {\n\t\tconst button = new ButtonView( this.locale );\n\t\tconst bind = this.bindTemplate;\n\t\tconst t = this.t;\n\n\t\tbutton.set( {\n\t\t\twithText: true,\n\t\t\ttooltip: t( 'Open link in new tab' )\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-link-actions__preview'\n\t\t\t\t],\n\t\t\t\thref: bind.to( 'href', href => href && ensureSafeUrl( href ) ),\n\t\t\t\ttarget: '_blank',\n\t\t\t\trel: 'noopener noreferrer'\n\t\t\t}\n\t\t} );\n\n\t\tbutton.bind( 'label' ).to( this, 'href', href => {\n\t\t\treturn href || t( 'This link has no URL' );\n\t\t} );\n\n\t\tbutton.bind( 'isEnabled' ).to( this, 'href', href => !!href );\n\n\t\tbutton.template!.tag = 'a';\n\t\tbutton.template!.eventListeners = {};\n\n\t\treturn button;\n\t}\n}\n\n/**\n * Fired when the {@link ~LinkActionsView#editButtonView} is clicked.\n *\n * @eventName ~LinkActionsView#edit\n */\nexport type EditEvent = {\n\tname: 'edit';\n\targs: [];\n};\n\n/**\n * Fired when the {@link ~LinkActionsView#unlinkButtonView} is clicked.\n *\n * @eventName ~LinkActionsView#unlink\n */\nexport type UnlinkEvent = {\n\tname: 'unlink';\n\targs: [];\n};\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184zm4.919 10.562-1.414 1.414a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.061-1.06l1.414 1.414 1.414-1.415a.75.75 0 0 1 1.061 1.061l-1.414 1.414 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.077 15 .991-1.416a.75.75 0 1 1 1.229.86l-1.148 1.64a.748.748 0 0 1-.217.206 5.251 5.251 0 0 1-8.503-5.955.741.741 0 0 1 .12-.274l1.147-1.639a.75.75 0 1 1 1.228.86L4.933 10.7l.006.003a3.75 3.75 0 0 0 6.132 4.294l.006.004zm5.494-5.335a.748.748 0 0 1-.12.274l-1.147 1.639a.75.75 0 1 1-1.228-.86l.86-1.23a3.75 3.75 0 0 0-6.144-4.301l-.86 1.229a.75.75 0 0 1-1.229-.86l1.148-1.64a.748.748 0 0 1 .217-.206 5.251 5.251 0 0 1 8.503 5.955zm-4.563-2.532a.75.75 0 0 1 .184 1.045l-3.155 4.505a.75.75 0 1 1-1.229-.86l3.155-4.506a.75.75 0 0 1 1.045-.184z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/linkui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport {\n\tClickObserver,\n\ttype ViewAttributeElement,\n\ttype ViewDocumentClickEvent,\n\ttype ViewElement,\n\ttype ViewPosition\n} from 'ckeditor5/src/engine';\nimport {\n\tButtonView,\n\tContextualBalloon,\n\tclickOutsideHandler,\n\tCssTransitionDisablerMixin,\n\ttype ViewWithCssTransitionDisabler\n} from 'ckeditor5/src/ui';\nimport type { PositionOptions } from 'ckeditor5/src/utils';\nimport { isWidget } from 'ckeditor5/src/widget';\n\nimport LinkFormView from './ui/linkformview';\nimport LinkActionsView from './ui/linkactionsview';\nimport type LinkCommand from './linkcommand';\nimport type UnlinkCommand from './unlinkcommand';\nimport { addLinkProtocolIfApplicable, isLinkElement, LINK_KEYSTROKE } from './utils';\n\nimport linkIcon from '../theme/icons/link.svg';\n\nconst VISUAL_SELECTION_MARKER_NAME = 'link-ui';\n\n/**\n * The link UI plugin. It introduces the `'link'` and `'unlink'` buttons and support for the <kbd>Ctrl+K</kbd> keystroke.\n *\n * It uses the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n */\nexport default class LinkUI extends Plugin {\n\t/**\n\t * The actions view displayed inside of the balloon.\n\t */\n\tpublic actionsView: LinkActionsView | null = null;\n\n\t/**\n\t * The form view displayed inside the balloon.\n\t */\n\tpublic formView: LinkFormView & ViewWithCssTransitionDisabler | null = null;\n\n\t/**\n\t * The contextual balloon plugin instance.\n\t */\n\tprivate _balloon!: ContextualBalloon;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ContextualBalloon ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'LinkUI' {\n\t\treturn 'LinkUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.editing.view.addObserver( ClickObserver );\n\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\t// Create toolbar buttons.\n\t\tthis._createToolbarLinkButton();\n\t\tthis._enableBalloonActivators();\n\n\t\t// Renders a fake visual selection marker on an expanded selection.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToHighlight( {\n\t\t\tmodel: VISUAL_SELECTION_MARKER_NAME,\n\t\t\tview: {\n\t\t\t\tclasses: [ 'ck-fake-link-selection' ]\n\t\t\t}\n\t\t} );\n\n\t\t// Renders a fake visual selection marker on a collapsed selection.\n\t\teditor.conversion.for( 'editingDowncast' ).markerToElement( {\n\t\t\tmodel: VISUAL_SELECTION_MARKER_NAME,\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: [ 'ck-fake-link-selection', 'ck-fake-link-selection_collapsed' ]\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tif ( this.formView ) {\n\t\t\tthis.formView.destroy();\n\t\t}\n\n\t\tif ( this.actionsView ) {\n\t\t\tthis.actionsView.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Creates views.\n\t */\n\tprivate _createViews() {\n\t\tthis.actionsView = this._createActionsView();\n\t\tthis.formView = this._createFormView();\n\n\t\t// Attach lifecycle actions to the the balloon.\n\t\tthis._enableUserBalloonInteractions();\n\t}\n\n\t/**\n\t * Creates the {@link module:link/ui/linkactionsview~LinkActionsView} instance.\n\t */\n\tprivate _createActionsView(): LinkActionsView {\n\t\tconst editor = this.editor;\n\t\tconst actionsView = new LinkActionsView( editor.locale );\n\t\tconst linkCommand: LinkCommand = editor.commands.get( 'link' )!;\n\t\tconst unlinkCommand: UnlinkCommand = editor.commands.get( 'unlink' )!;\n\n\t\tactionsView.bind( 'href' ).to( linkCommand, 'value' );\n\t\tactionsView.editButtonView.bind( 'isEnabled' ).to( linkCommand );\n\t\tactionsView.unlinkButtonView.bind( 'isEnabled' ).to( unlinkCommand );\n\n\t\t// Execute unlink command after clicking on the \"Edit\" button.\n\t\tthis.listenTo( actionsView, 'edit', () => {\n\t\t\tthis._addFormView();\n\t\t} );\n\n\t\t// Execute unlink command after clicking on the \"Unlink\" button.\n\t\tthis.listenTo( actionsView, 'unlink', () => {\n\t\t\teditor.execute( 'unlink' );\n\t\t\tthis._hideUI();\n\t\t} );\n\n\t\t// Close the panel on esc key press when the **actions have focus**.\n\t\tactionsView.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideUI();\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Open the form view on Ctrl+K when the **actions have focus**..\n\t\tactionsView.keystrokes.set( LINK_KEYSTROKE, ( data, cancel ) => {\n\t\t\tthis._addFormView();\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn actionsView;\n\t}\n\n\t/**\n\t * Creates the {@link module:link/ui/linkformview~LinkFormView} instance.\n\t */\n\tprivate _createFormView(): LinkFormView & ViewWithCssTransitionDisabler {\n\t\tconst editor = this.editor;\n\t\tconst linkCommand: LinkCommand = editor.commands.get( 'link' )!;\n\t\tconst defaultProtocol = editor.config.get( 'link.defaultProtocol' );\n\n\t\tconst formView = new ( CssTransitionDisablerMixin( LinkFormView ) )( editor.locale, linkCommand );\n\n\t\tformView.urlInputView.fieldView.bind( 'value' ).to( linkCommand, 'value' );\n\n\t\t// Form elements should be read-only when corresponding commands are disabled.\n\t\tformView.urlInputView.bind( 'isEnabled' ).to( linkCommand, 'isEnabled' );\n\t\tformView.saveButtonView.bind( 'isEnabled' ).to( linkCommand );\n\n\t\t// Execute link command after clicking the \"Save\" button.\n\t\tthis.listenTo( formView, 'submit', () => {\n\t\t\tconst { value } = formView.urlInputView.fieldView.element!;\n\t\t\tconst parsedUrl = addLinkProtocolIfApplicable( value, defaultProtocol );\n\t\t\teditor.execute( 'link', parsedUrl, formView.getDecoratorSwitchesState() );\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Hide the panel after clicking the \"Cancel\" button.\n\t\tthis.listenTo( formView, 'cancel', () => {\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Close the panel on esc key press when the **form has focus**.\n\t\tformView.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._closeFormView();\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn formView;\n\t}\n\n\t/**\n\t * Creates a toolbar Link button. Clicking this button will show\n\t * a {@link #_balloon} attached to the selection.\n\t */\n\tprivate _createToolbarLinkButton(): void {\n\t\tconst editor = this.editor;\n\t\tconst linkCommand: LinkCommand = editor.commands.get( 'link' )!;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'link', locale => {\n\t\t\tconst button = new ButtonView( locale );\n\n\t\t\tbutton.isEnabled = true;\n\t\t\tbutton.label = t( 'Link' );\n\t\t\tbutton.icon = linkIcon;\n\t\t\tbutton.keystroke = LINK_KEYSTROKE;\n\t\t\tbutton.tooltip = true;\n\t\t\tbutton.isToggleable = true;\n\n\t\t\t// Bind button to the command.\n\t\t\tbutton.bind( 'isEnabled' ).to( linkCommand, 'isEnabled' );\n\t\t\tbutton.bind( 'isOn' ).to( linkCommand, 'value', value => !!value );\n\n\t\t\t// Show the panel on button click.\n\t\t\tthis.listenTo( button, 'execute', () => this._showUI( true ) );\n\n\t\t\treturn button;\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches actions that control whether the balloon panel containing the\n\t * {@link #formView} should be displayed.\n\t */\n\tprivate _enableBalloonActivators(): void {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\t// Handle click on view document and show panel when selection is placed inside the link element.\n\t\t// Keep panel open until selection will be inside the same link element.\n\t\tthis.listenTo<ViewDocumentClickEvent>( viewDocument, 'click', () => {\n\t\t\tconst parentLink = this._getSelectedLinkElement();\n\n\t\t\tif ( parentLink ) {\n\t\t\t\t// Then show panel but keep focus inside editor editable.\n\t\t\t\tthis._showUI();\n\t\t\t}\n\t\t} );\n\n\t\t// Handle the `Ctrl+K` keystroke and show the panel.\n\t\teditor.keystrokes.set( LINK_KEYSTROKE, ( keyEvtData, cancel ) => {\n\t\t\t// Prevent focusing the search bar in FF, Chrome and Edge. See https://github.com/ckeditor/ckeditor5/issues/4811.\n\t\t\tcancel();\n\n\t\t\tif ( editor.commands.get( 'link' )!.isEnabled ) {\n\t\t\t\tthis._showUI( true );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Attaches actions that control whether the balloon panel containing the\n\t * {@link #formView} is visible or not.\n\t */\n\tprivate _enableUserBalloonInteractions(): void {\n\t\t// Focus the form if the balloon is visible and the Tab key has been pressed.\n\t\tthis.editor.keystrokes.set( 'Tab', ( data, cancel ) => {\n\t\t\tif ( this._areActionsVisible && !this.actionsView!.focusTracker.isFocused ) {\n\t\t\t\tthis.actionsView!.focus();\n\t\t\t\tcancel();\n\t\t\t}\n\t\t}, {\n\t\t\t// Use the high priority because the link UI navigation is more important\n\t\t\t// than other feature's actions, e.g. list indentation.\n\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/146\n\t\t\tpriority: 'high'\n\t\t} );\n\n\t\t// Close the panel on the Esc key press when the editable has focus and the balloon is visible.\n\t\tthis.editor.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tif ( this._isUIVisible ) {\n\t\t\t\tthis._hideUI();\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this.formView!,\n\t\t\tactivator: () => this._isUIInPanel,\n\t\t\tcontextElements: () => [ this._balloon.view.element! ],\n\t\t\tcallback: () => this._hideUI()\n\t\t} );\n\t}\n\n\t/**\n\t * Adds the {@link #actionsView} to the {@link #_balloon}.\n\t *\n\t * @internal\n\t */\n\tpublic _addActionsView(): void {\n\t\tif ( !this.actionsView ) {\n\t\t\tthis._createViews();\n\t\t}\n\n\t\tif ( this._areActionsInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.actionsView!,\n\t\t\tposition: this._getBalloonPositionData()\n\t\t} );\n\t}\n\n\t/**\n\t * Adds the {@link #formView} to the {@link #_balloon}.\n\t */\n\tprivate _addFormView(): void {\n\t\tif ( !this.formView ) {\n\t\t\tthis._createViews();\n\t\t}\n\n\t\tif ( this._isFormInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst linkCommand: LinkCommand = editor.commands.get( 'link' )!;\n\n\t\tthis.formView!.disableCssTransitions();\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.formView!,\n\t\t\tposition: this._getBalloonPositionData()\n\t\t} );\n\n\t\t// Select input when form view is currently visible.\n\t\tif ( this._balloon.visibleView === this.formView ) {\n\t\t\tthis.formView!.urlInputView.fieldView.select();\n\t\t}\n\n\t\tthis.formView!.enableCssTransitions();\n\n\t\t// Make sure that each time the panel shows up, the URL field remains in sync with the value of\n\t\t// the command. If the user typed in the input, then canceled the balloon (`urlInputView.fieldView#value` stays\n\t\t// unaltered) and re-opened it without changing the value of the link command (e.g. because they\n\t\t// clicked the same link), they would see the old value instead of the actual value of the command.\n\t\t// https://github.com/ckeditor/ckeditor5-link/issues/78\n\t\t// https://github.com/ckeditor/ckeditor5-link/issues/123\n\t\tthis.formView!.urlInputView.fieldView.element!.value = linkCommand.value || '';\n\t}\n\n\t/**\n\t * Closes the form view. Decides whether the balloon should be hidden completely or if the action view should be shown. This is\n\t * decided upon the link command value (which has a value if the document selection is in the link).\n\t *\n\t * Additionally, if any {@link module:link/linkconfig~LinkConfig#decorators} are defined in the editor configuration, the state of\n\t * switch buttons responsible for manual decorator handling is restored.\n\t */\n\tprivate _closeFormView(): void {\n\t\tconst linkCommand: LinkCommand = this.editor.commands.get( 'link' )!;\n\n\t\t// Restore manual decorator states to represent the current model state. This case is important to reset the switch buttons\n\t\t// when the user cancels the editing form.\n\t\tlinkCommand.restoreManualDecoratorStates();\n\n\t\tif ( linkCommand.value !== undefined ) {\n\t\t\tthis._removeFormView();\n\t\t} else {\n\t\t\tthis._hideUI();\n\t\t}\n\t}\n\n\t/**\n\t * Removes the {@link #formView} from the {@link #_balloon}.\n\t */\n\tprivate _removeFormView(): void {\n\t\tif ( this._isFormInPanel ) {\n\t\t\t// Blur the input element before removing it from DOM to prevent issues in some browsers.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\t\tthis.formView!.saveButtonView.focus();\n\n\t\t\tthis._balloon.remove( this.formView! );\n\n\t\t\t// Because the form has an input which has focus, the focus must be brought back\n\t\t\t// to the editor. Otherwise, it would be lost.\n\t\t\tthis.editor.editing.view.focus();\n\n\t\t\tthis._hideFakeVisualSelection();\n\t\t}\n\t}\n\n\t/**\n\t * Shows the correct UI type. It is either {@link #formView} or {@link #actionsView}.\n\t *\n\t * @internal\n\t */\n\tpublic _showUI( forceVisible: boolean = false ): void {\n\t\tif ( !this.formView ) {\n\t\t\tthis._createViews();\n\t\t}\n\n\t\t// When there's no link under the selection, go straight to the editing UI.\n\t\tif ( !this._getSelectedLinkElement() ) {\n\t\t\t// Show visual selection on a text without a link when the contextual balloon is displayed.\n\t\t\t// See https://github.com/ckeditor/ckeditor5/issues/4721.\n\t\t\tthis._showFakeVisualSelection();\n\n\t\t\tthis._addActionsView();\n\n\t\t\t// Be sure panel with link is visible.\n\t\t\tif ( forceVisible ) {\n\t\t\t\tthis._balloon.showStack( 'main' );\n\t\t\t}\n\n\t\t\tthis._addFormView();\n\t\t}\n\t\t// If there's a link under the selection...\n\t\telse {\n\t\t\t// Go to the editing UI if actions are already visible.\n\t\t\tif ( this._areActionsVisible ) {\n\t\t\t\tthis._addFormView();\n\t\t\t}\n\t\t\t// Otherwise display just the actions UI.\n\t\t\telse {\n\t\t\t\tthis._addActionsView();\n\t\t\t}\n\n\t\t\t// Be sure panel with link is visible.\n\t\t\tif ( forceVisible ) {\n\t\t\t\tthis._balloon.showStack( 'main' );\n\t\t\t}\n\t\t}\n\n\t\t// Begin responding to ui#update once the UI is added.\n\t\tthis._startUpdatingUI();\n\t}\n\n\t/**\n\t * Removes the {@link #formView} from the {@link #_balloon}.\n\t *\n\t * See {@link #_addFormView}, {@link #_addActionsView}.\n\t */\n\tprivate _hideUI(): void {\n\t\tif ( !this._isUIInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\t\tthis.stopListening( this._balloon, 'change:visibleView' );\n\n\t\t// Make sure the focus always gets back to the editable _before_ removing the focused form view.\n\t\t// Doing otherwise causes issues in some browsers. See https://github.com/ckeditor/ckeditor5-link/issues/193.\n\t\teditor.editing.view.focus();\n\n\t\t// Remove form first because it's on top of the stack.\n\t\tthis._removeFormView();\n\n\t\t// Then remove the actions view because it's beneath the form.\n\t\tthis._balloon.remove( this.actionsView! );\n\n\t\tthis._hideFakeVisualSelection();\n\t}\n\n\t/**\n\t * Makes the UI react to the {@link module:ui/editorui/editorui~EditorUI#event:update} event to\n\t * reposition itself when the editor UI should be refreshed.\n\t *\n\t * See: {@link #_hideUI} to learn when the UI stops reacting to the `update` event.\n\t */\n\tprivate _startUpdatingUI(): void {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\tlet prevSelectedLink = this._getSelectedLinkElement();\n\t\tlet prevSelectionParent = getSelectionParent();\n\n\t\tconst update = () => {\n\t\t\tconst selectedLink = this._getSelectedLinkElement();\n\t\t\tconst selectionParent = getSelectionParent();\n\n\t\t\t// Hide the panel if:\n\t\t\t//\n\t\t\t// * the selection went out of the EXISTING link element. E.g. user moved the caret out\n\t\t\t//   of the link,\n\t\t\t// * the selection went to a different parent when creating a NEW link. E.g. someone\n\t\t\t//   else modified the document.\n\t\t\t// * the selection has expanded (e.g. displaying link actions then pressing SHIFT+Right arrow).\n\t\t\t//\n\t\t\t// Note: #_getSelectedLinkElement will return a link for a non-collapsed selection only\n\t\t\t// when fully selected.\n\t\t\tif ( ( prevSelectedLink && !selectedLink ) ||\n\t\t\t\t( !prevSelectedLink && selectionParent !== prevSelectionParent ) ) {\n\t\t\t\tthis._hideUI();\n\t\t\t}\n\t\t\t// Update the position of the panel when:\n\t\t\t//  * link panel is in the visible stack\n\t\t\t//  * the selection remains in the original link element,\n\t\t\t//  * there was no link element in the first place, i.e. creating a new link\n\t\t\telse if ( this._isUIVisible ) {\n\t\t\t\t// If still in a link element, simply update the position of the balloon.\n\t\t\t\t// If there was no link (e.g. inserting one), the balloon must be moved\n\t\t\t\t// to the new position in the editing view (a new native DOM range).\n\t\t\t\tthis._balloon.updatePosition( this._getBalloonPositionData() );\n\t\t\t}\n\n\t\t\tprevSelectedLink = selectedLink;\n\t\t\tprevSelectionParent = selectionParent;\n\t\t};\n\n\t\tfunction getSelectionParent() {\n\t\t\treturn viewDocument.selection.focus!.getAncestors()\n\t\t\t\t.reverse()\n\t\t\t\t.find( ( node ): node is ViewElement => node.is( 'element' ) );\n\t\t}\n\n\t\tthis.listenTo( editor.ui, 'update', update );\n\t\tthis.listenTo( this._balloon, 'change:visibleView', update );\n\t}\n\n\t/**\n\t * Returns `true` when {@link #formView} is in the {@link #_balloon}.\n\t */\n\tprivate get _isFormInPanel(): boolean {\n\t\treturn !!this.formView && this._balloon.hasView( this.formView );\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} is in the {@link #_balloon}.\n\t */\n\tprivate get _areActionsInPanel(): boolean {\n\t\treturn !!this.actionsView && this._balloon.hasView( this.actionsView );\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} is in the {@link #_balloon} and it is\n\t * currently visible.\n\t */\n\tprivate get _areActionsVisible(): boolean {\n\t\treturn !!this.actionsView && this._balloon.visibleView === this.actionsView;\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} or {@link #formView} is in the {@link #_balloon}.\n\t */\n\tprivate get _isUIInPanel(): boolean {\n\t\treturn this._isFormInPanel || this._areActionsInPanel;\n\t}\n\n\t/**\n\t * Returns `true` when {@link #actionsView} or {@link #formView} is in the {@link #_balloon} and it is\n\t * currently visible.\n\t */\n\tprivate get _isUIVisible(): boolean {\n\t\tconst visibleView = this._balloon.visibleView;\n\n\t\treturn !!this.formView && visibleView == this.formView || this._areActionsVisible;\n\t}\n\n\t/**\n\t * Returns positioning options for the {@link #_balloon}. They control the way the balloon is attached\n\t * to the target element or selection.\n\t *\n\t * If the selection is collapsed and inside a link element, the panel will be attached to the\n\t * entire link element. Otherwise, it will be attached to the selection.\n\t */\n\tprivate _getBalloonPositionData(): Partial<PositionOptions> {\n\t\tconst view = this.editor.editing.view;\n\t\tconst model = this.editor.model;\n\t\tconst viewDocument = view.document;\n\t\tlet target: PositionOptions[ 'target' ];\n\n\t\tif ( model.markers.has( VISUAL_SELECTION_MARKER_NAME ) ) {\n\t\t\t// There are cases when we highlight selection using a marker (#7705, #4721).\n\t\t\tconst markerViewElements = Array.from( this.editor.editing.mapper.markerNameToElements( VISUAL_SELECTION_MARKER_NAME )! );\n\t\t\tconst newRange = view.createRange(\n\t\t\t\tview.createPositionBefore( markerViewElements[ 0 ] ),\n\t\t\t\tview.createPositionAfter( markerViewElements[ markerViewElements.length - 1 ] )\n\t\t\t);\n\n\t\t\ttarget = view.domConverter.viewRangeToDom( newRange );\n\t\t} else {\n\t\t\t// Make sure the target is calculated on demand at the last moment because a cached DOM range\n\t\t\t// (which is very fragile) can desynchronize with the state of the editing view if there was\n\t\t\t// any rendering done in the meantime. This can happen, for instance, when an inline widget\n\t\t\t// gets unlinked.\n\t\t\ttarget = () => {\n\t\t\t\tconst targetLink = this._getSelectedLinkElement();\n\n\t\t\t\treturn targetLink ?\n\t\t\t\t\t// When selection is inside link element, then attach panel to this element.\n\t\t\t\t\tview.domConverter.mapViewToDom( targetLink )! :\n\t\t\t\t\t// Otherwise attach panel to the selection.\n\t\t\t\t\tview.domConverter.viewRangeToDom( viewDocument.selection.getFirstRange()! );\n\t\t\t};\n\t\t}\n\n\t\treturn { target };\n\t}\n\n\t/**\n\t * Returns the link {@link module:engine/view/attributeelement~AttributeElement} under\n\t * the {@link module:engine/view/document~Document editing view's} selection or `null`\n\t * if there is none.\n\t *\n\t * **Note**: For a non–collapsed selection, the link element is returned when **fully**\n\t * selected and the **only** element within the selection boundaries, or when\n\t * a linked widget is selected.\n\t */\n\tprivate _getSelectedLinkElement(): ViewAttributeElement | null {\n\t\tconst view = this.editor.editing.view;\n\t\tconst selection = view.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t// The selection is collapsed or some widget is selected (especially inline widget).\n\t\tif ( selection.isCollapsed || selectedElement && isWidget( selectedElement ) ) {\n\t\t\treturn findLinkElementAncestor( selection.getFirstPosition()! );\n\t\t} else {\n\t\t\t// The range for fully selected link is usually anchored in adjacent text nodes.\n\t\t\t// Trim it to get closer to the actual link element.\n\t\t\tconst range = selection.getFirstRange()!.getTrimmed();\n\t\t\tconst startLink = findLinkElementAncestor( range.start );\n\t\t\tconst endLink = findLinkElementAncestor( range.end );\n\n\t\t\tif ( !startLink || startLink != endLink ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\t// Check if the link element is fully selected.\n\t\t\tif ( view.createRangeIn( startLink ).getTrimmed().isEqual( range ) ) {\n\t\t\t\treturn startLink;\n\t\t\t} else {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Displays a fake visual selection when the contextual balloon is displayed.\n\t *\n\t * This adds a 'link-ui' marker into the document that is rendered as a highlight on selected text fragment.\n\t */\n\tprivate _showFakeVisualSelection(): void {\n\t\tconst model = this.editor.model;\n\n\t\tmodel.change( writer => {\n\t\t\tconst range = model.document.selection.getFirstRange()!;\n\n\t\t\tif ( model.markers.has( VISUAL_SELECTION_MARKER_NAME ) ) {\n\t\t\t\twriter.updateMarker( VISUAL_SELECTION_MARKER_NAME, { range } );\n\t\t\t} else {\n\t\t\t\tif ( range.start.isAtEnd ) {\n\t\t\t\t\tconst startPosition = range.start.getLastMatchingPosition(\n\t\t\t\t\t\t( { item } ) => !model.schema.isContent( item ),\n\t\t\t\t\t\t{ boundaries: range }\n\t\t\t\t\t);\n\n\t\t\t\t\twriter.addMarker( VISUAL_SELECTION_MARKER_NAME, {\n\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\trange: writer.createRange( startPosition, range.end )\n\t\t\t\t\t} );\n\t\t\t\t} else {\n\t\t\t\t\twriter.addMarker( VISUAL_SELECTION_MARKER_NAME, {\n\t\t\t\t\t\tusingOperation: false,\n\t\t\t\t\t\taffectsData: false,\n\t\t\t\t\t\trange\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Hides the fake visual selection created in {@link #_showFakeVisualSelection}.\n\t */\n\tprivate _hideFakeVisualSelection(): void {\n\t\tconst model = this.editor.model;\n\n\t\tif ( model.markers.has( VISUAL_SELECTION_MARKER_NAME ) ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.removeMarker( VISUAL_SELECTION_MARKER_NAME );\n\t\t\t} );\n\t\t}\n\t}\n}\n\n/**\n * Returns a link element if there's one among the ancestors of the provided `Position`.\n *\n * @param View position to analyze.\n * @returns Link element at the position or null.\n */\nfunction findLinkElementAncestor( position: ViewPosition ): ViewAttributeElement | null {\n\treturn position.getAncestors().find( ( ancestor ): ancestor is ViewAttributeElement => isLinkElement( ancestor ) ) || null;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/autolink\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport type { DocumentSelectionChangeEvent, Element, Model, Range } from 'ckeditor5/src/engine';\nimport { Delete, TextWatcher, getLastTextLine, type TextWatcherMatchedDataEvent } from 'ckeditor5/src/typing';\nimport type { EnterCommand, ShiftEnterCommand } from 'ckeditor5/src/enter';\n\nimport { addLinkProtocolIfApplicable, linkHasProtocol } from './utils';\n\nconst MIN_LINK_LENGTH_WITH_SPACE_AT_END = 4; // Ie: \"t.co \" (length 5).\n\n// This was a tweak from https://gist.github.com/dperini/729294.\nconst URL_REG_EXP = new RegExp(\n\t// Group 1: Line start or after a space.\n\t'(^|\\\\s)' +\n\t// Group 2: Detected URL (or e-mail).\n\t'(' +\n\t\t// Protocol identifier or short syntax \"//\"\n\t\t// a. Full form http://user@foo.bar.baz:8080/foo/bar.html#baz?foo=bar\n\t\t'(' +\n\t\t\t'(?:(?:(?:https?|ftp):)?\\\\/\\\\/)' +\n\t\t\t// BasicAuth using user:pass (optional)\n\t\t\t'(?:\\\\S+(?::\\\\S*)?@)?' +\n\t\t\t'(?:' +\n\t\t\t\t// IP address dotted notation octets\n\t\t\t\t// excludes loopback network 0.0.0.0\n\t\t\t\t// excludes reserved space >= 224.0.0.0\n\t\t\t\t// excludes network & broadcast addresses\n\t\t\t\t// (first & last IP address of each class)\n\t\t\t\t'(?:[1-9]\\\\d?|1\\\\d\\\\d|2[01]\\\\d|22[0-3])' +\n\t\t\t\t'(?:\\\\.(?:1?\\\\d{1,2}|2[0-4]\\\\d|25[0-5])){2}' +\n\t\t\t\t'(?:\\\\.(?:[1-9]\\\\d?|1\\\\d\\\\d|2[0-4]\\\\d|25[0-4]))' +\n\t\t\t\t'|' +\n\t\t\t\t'(' +\n\t\t\t\t\t// Do not allow `www.foo` - see https://github.com/ckeditor/ckeditor5/issues/8050.\n\t\t\t\t\t'((?!www\\\\.)|(www\\\\.))' +\n\t\t\t\t\t// Host & domain names.\n\t\t\t\t\t'(?![-_])(?:[-_a-z0-9\\\\u00a1-\\\\uffff]{1,63}\\\\.)+' +\n\t\t\t\t\t// TLD identifier name.\n\t\t\t\t\t'(?:[a-z\\\\u00a1-\\\\uffff]{2,63})' +\n\t\t\t\t')' +\n\t\t\t')' +\n\t\t\t// port number (optional)\n\t\t\t'(?::\\\\d{2,5})?' +\n\t\t\t// resource path (optional)\n\t\t\t'(?:[/?#]\\\\S*)?' +\n\t\t')' +\n\t\t'|' +\n\t\t// b. Short form (either www.example.com or example@example.com)\n\t\t'(' +\n\t\t\t'(www.|(\\\\S+@))' +\n\t\t\t// Host & domain names.\n\t\t\t'((?![-_])(?:[-_a-z0-9\\\\u00a1-\\\\uffff]{1,63}\\\\.))+' +\n\t\t\t// TLD identifier name.\n\t\t\t'(?:[a-z\\\\u00a1-\\\\uffff]{2,63})' +\n\t\t')' +\n\t')$', 'i' );\n\nconst URL_GROUP_IN_MATCH = 2;\n\n/**\n * The autolink plugin.\n */\nexport default class AutoLink extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ Delete ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'AutoLink' {\n\t\treturn 'AutoLink';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\tselection.on<DocumentSelectionChangeEvent>( 'change:range', () => {\n\t\t\t// Disable plugin when selection is inside a code block.\n\t\t\tthis.isEnabled = !selection.anchor!.parent.is( 'element', 'codeBlock' );\n\t\t} );\n\n\t\tthis._enableTypingHandling();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tthis._enableEnterHandling();\n\t\tthis._enableShiftEnterHandling();\n\t}\n\n\t/**\n\t * Enables autolinking on typing.\n\t */\n\tprivate _enableTypingHandling(): void {\n\t\tconst editor = this.editor;\n\n\t\tconst watcher = new TextWatcher( editor.model, text => {\n\t\t\t// 1. Detect <kbd>Space</kbd> after a text with a potential link.\n\t\t\tif ( !isSingleSpaceAtTheEnd( text ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// 2. Check text before last typed <kbd>Space</kbd>.\n\t\t\tconst url = getUrlAtTextEnd( text.substr( 0, text.length - 1 ) );\n\n\t\t\tif ( url ) {\n\t\t\t\treturn { url };\n\t\t\t}\n\t\t} );\n\n\t\twatcher.on<TextWatcherMatchedDataEvent<{ url: string }>>( 'matched:data', ( evt, data ) => {\n\t\t\tconst { batch, range, url } = data;\n\n\t\t\tif ( !batch.isTyping ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst linkEnd = range.end.getShiftedBy( -1 ); // Executed after a space character.\n\t\t\tconst linkStart = linkEnd.getShiftedBy( -url.length );\n\n\t\t\tconst linkRange = editor.model.createRange( linkStart, linkEnd );\n\n\t\t\tthis._applyAutoLink( url, linkRange );\n\t\t} );\n\n\t\twatcher.bind( 'isEnabled' ).to( this );\n\t}\n\n\t/**\n\t * Enables autolinking on the <kbd>Enter</kbd> key.\n\t */\n\tprivate _enableEnterHandling(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst enterCommand: EnterCommand | undefined = editor.commands.get( 'enter' );\n\n\t\tif ( !enterCommand ) {\n\t\t\treturn;\n\t\t}\n\n\t\tenterCommand.on( 'execute', () => {\n\t\t\tconst position = model.document.selection.getFirstPosition()!;\n\n\t\t\tif ( !position.parent.previousSibling ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst rangeToCheck = model.createRangeIn( position.parent.previousSibling as Element );\n\n\t\t\tthis._checkAndApplyAutoLinkOnRange( rangeToCheck );\n\t\t} );\n\t}\n\n\t/**\n\t * Enables autolinking on the <kbd>Shift</kbd>+<kbd>Enter</kbd> keyboard shortcut.\n\t */\n\tprivate _enableShiftEnterHandling(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tconst shiftEnterCommand: ShiftEnterCommand | undefined = editor.commands.get( 'shiftEnter' );\n\n\t\tif ( !shiftEnterCommand ) {\n\t\t\treturn;\n\t\t}\n\n\t\tshiftEnterCommand.on( 'execute', () => {\n\t\t\tconst position = model.document.selection.getFirstPosition()!;\n\n\t\t\tconst rangeToCheck = model.createRange(\n\t\t\t\tmodel.createPositionAt( position.parent, 0 ),\n\t\t\t\tposition.getShiftedBy( -1 )\n\t\t\t);\n\n\t\t\tthis._checkAndApplyAutoLinkOnRange( rangeToCheck );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks if the passed range contains a linkable text.\n\t */\n\tprivate _checkAndApplyAutoLinkOnRange( rangeToCheck: Range ): void {\n\t\tconst model = this.editor.model;\n\t\tconst { text, range } = getLastTextLine( rangeToCheck, model );\n\n\t\tconst url = getUrlAtTextEnd( text );\n\n\t\tif ( url ) {\n\t\t\tconst linkRange = model.createRange(\n\t\t\t\trange.end.getShiftedBy( -url.length ),\n\t\t\t\trange.end\n\t\t\t);\n\n\t\t\tthis._applyAutoLink( url, linkRange );\n\t\t}\n\t}\n\n\t/**\n\t * Applies a link on a given range if the link should be applied.\n\t *\n\t * @param url The URL to link.\n\t * @param range The text range to apply the link attribute to.\n\t */\n\tprivate _applyAutoLink( url: string, range: Range ): void {\n\t\tconst model = this.editor.model;\n\n\t\tconst defaultProtocol = this.editor.config.get( 'link.defaultProtocol' );\n\t\tconst fullUrl = addLinkProtocolIfApplicable( url, defaultProtocol );\n\n\t\tif ( !this.isEnabled || !isLinkAllowedOnRange( range, model ) || !linkHasProtocol( fullUrl ) || linkIsAlreadySet( range ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._persistAutoLink( fullUrl, range );\n\t}\n\n\t/**\n\t * Enqueues autolink changes in the model.\n\t *\n\t * @param url The URL to link.\n\t * @param range The text range to apply the link attribute to.\n\t */\n\tprivate _persistAutoLink( url: string, range: Range ): void {\n\t\tconst model = this.editor.model;\n\t\tconst deletePlugin = this.editor.plugins.get( 'Delete' );\n\n\t\t// Enqueue change to make undo step.\n\t\tmodel.enqueueChange( writer => {\n\t\t\twriter.setAttribute( 'linkHref', url, range );\n\n\t\t\tmodel.enqueueChange( () => {\n\t\t\t\tdeletePlugin.requestUndoOnBackspace();\n\t\t\t} );\n\t\t} );\n\t}\n}\n\n// Check if text should be evaluated by the plugin in order to reduce number of RegExp checks on whole text.\nfunction isSingleSpaceAtTheEnd( text: string ): boolean {\n\treturn text.length > MIN_LINK_LENGTH_WITH_SPACE_AT_END && text[ text.length - 1 ] === ' ' && text[ text.length - 2 ] !== ' ';\n}\n\nfunction getUrlAtTextEnd( text: string ): string | null {\n\tconst match = URL_REG_EXP.exec( text );\n\n\treturn match ? match[ URL_GROUP_IN_MATCH ] : null;\n}\n\nfunction isLinkAllowedOnRange( range: Range, model: Model ): boolean {\n\treturn model.schema.checkAttributeInSelection( model.createSelection( range ), 'linkHref' );\n}\n\nfunction linkIsAlreadySet( range: Range ): boolean {\n\tconst item = range.start.nodeAfter;\n\treturn !!item && item.hasAttribute( 'linkHref' );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listcommand\n */\n\nimport type { Element, Node, Schema } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\n\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The list command. It is used by the {@link module:list/list~List list feature}.\n */\nexport default class ListCommand extends Command {\n\t/**\n\t * The type of the list created by the command.\n\t */\n\tpublic readonly type: 'numbered' | 'bulleted' | 'todo';\n\n\t/**\n\t * A flag indicating whether the command is active, which means that the selection starts in a list of the same type.\n\t *\n\t * @readonly\n\t */\n\tdeclare public value: boolean;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param editor The editor instance.\n\t * @param type List type that will be handled by this command.\n\t */\n\tconstructor( editor: Editor, type: 'numbered' | 'bulleted' | 'todo' ) {\n\t\tsuper( editor );\n\n\t\tthis.type = type;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the list command.\n\t *\n\t * @fires execute\n\t * @param options Command options.\n\t * @param options.forceValue If set, it will force the command behavior. If `true`, the command will try to convert the\n\t * selected items and potentially the neighbor elements to the proper list items. If set to `false`, it will convert selected elements\n\t * to paragraphs. If not set, the command will toggle selected elements to list items or paragraphs, depending on the selection.\n\t */\n\tpublic override execute( options: { forceValue?: boolean } = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst blocks = Array.from( document.selection.getSelectedBlocks() )\n\t\t\t.filter( block => checkCanBecomeListItem( block, model.schema ) );\n\n\t\t// Whether we are turning off some items.\n\t\tconst turnOff = options.forceValue !== undefined ? !options.forceValue : this.value;\n\n\t\t// If we are turning off items, we are going to rename them to paragraphs.\n\n\t\tmodel.change( writer => {\n\t\t\t// If part of a list got turned off, we need to handle (outdent) all of sub-items of the last turned-off item.\n\t\t\t// To be sure that model is all the time in a good state, we first fix items below turned-off item.\n\t\t\tif ( turnOff ) {\n\t\t\t\t// Start from the model item that is just after the last turned-off item.\n\t\t\t\tlet next = blocks[ blocks.length - 1 ].nextSibling as Element;\n\t\t\t\tlet currentIndent = Number.POSITIVE_INFINITY;\n\t\t\t\tlet changes = [];\n\n\t\t\t\t// Correct indent of all items after the last turned off item.\n\t\t\t\t// Rules that should be followed:\n\t\t\t\t// 1. All direct sub-items of turned-off item should become indent 0, because the first item after it\n\t\t\t\t//    will be the first item of a new list. Other items are at the same level, so should have same 0 index.\n\t\t\t\t// 2. All items with indent lower than indent of turned-off item should become indent 0, because they\n\t\t\t\t//    should not end up as a child of any of list items that they were not children of before.\n\t\t\t\t// 3. All other items should have their indent changed relatively to it's parent.\n\t\t\t\t//\n\t\t\t\t// For example:\n\t\t\t\t// 1  * --------\n\t\t\t\t// 2     * --------\n\t\t\t\t// 3        * --------\t\t\t<-- this is turned off.\n\t\t\t\t// 4           * --------\t\t<-- this has to become indent = 0, because it will be first item on a new list.\n\t\t\t\t// 5              * --------\t<-- this should be still be a child of item above, so indent = 1.\n\t\t\t\t// 6        * --------\t\t\t<-- this has to become indent = 0, because it should not be a child of any of items above.\n\t\t\t\t// 7           * --------\t\t<-- this should be still be a child of item above, so indent = 1.\n\t\t\t\t// 8     * --------\t\t\t\t<-- this has to become indent = 0.\n\t\t\t\t// 9        * --------\t\t\t<-- this should still be a child of item above, so indent = 1.\n\t\t\t\t// 10          * --------\t\t<-- this should still be a child of item above, so indent = 2.\n\t\t\t\t// 11          * --------\t\t<-- this should still be at the same level as item above, so indent = 2.\n\t\t\t\t// 12 * --------\t\t\t\t<-- this and all below are left unchanged.\n\t\t\t\t// 13    * --------\n\t\t\t\t// 14       * --------\n\t\t\t\t//\n\t\t\t\t// After turning off 3 the list becomes:\n\t\t\t\t//\n\t\t\t\t// 1  * --------\n\t\t\t\t// 2     * --------\n\t\t\t\t//\n\t\t\t\t// 3  --------\n\t\t\t\t//\n\t\t\t\t// 4  * --------\n\t\t\t\t// 5     * --------\n\t\t\t\t// 6  * --------\n\t\t\t\t// 7     * --------\n\t\t\t\t// 8  * --------\n\t\t\t\t// 9     * --------\n\t\t\t\t// 10       * --------\n\t\t\t\t// 11       * --------\n\t\t\t\t// 12 * --------\n\t\t\t\t// 13    * --------\n\t\t\t\t// 14       * --------\n\t\t\t\t//\n\t\t\t\t// Thanks to this algorithm no lists are mismatched and no items get unexpected children/parent, while\n\t\t\t\t// those parent-child connection which are possible to maintain are still maintained. It's worth noting\n\t\t\t\t// that this is the same effect that we would be get by multiple use of outdent command. However doing\n\t\t\t\t// it like this is much more efficient because it's less operation (less memory usage, easier OT) and\n\t\t\t\t// less conversion (faster).\n\t\t\t\twhile ( next && next.name == 'listItem' && next.getAttribute( 'listIndent' ) !== 0 ) {\n\t\t\t\t\t// Check each next list item, as long as its indent is bigger than 0.\n\t\t\t\t\t// If the indent is 0 we are not going to change anything anyway.\n\t\t\t\t\tconst indent = next.getAttribute( 'listIndent' ) as number;\n\n\t\t\t\t\t// We check if that's item indent is lower as current relative indent.\n\t\t\t\t\tif ( indent < currentIndent ) {\n\t\t\t\t\t\t// If it is, current relative indent becomes that indent.\n\t\t\t\t\t\tcurrentIndent = indent;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Fix indent relatively to current relative indent.\n\t\t\t\t\t// Note, that if we just changed the current relative indent, the newIndent will be equal to 0.\n\t\t\t\t\tconst newIndent = indent - currentIndent;\n\n\t\t\t\t\t// Save the entry in changes array. We do not apply it at the moment, because we will need to\n\t\t\t\t\t// reverse the changes so the last item is changed first.\n\t\t\t\t\t// This is to keep model in correct state all the time.\n\t\t\t\t\tchanges.push( { element: next, listIndent: newIndent } );\n\n\t\t\t\t\t// Find next item.\n\t\t\t\t\tnext = next.nextSibling as Element;\n\t\t\t\t}\n\n\t\t\t\tchanges = changes.reverse();\n\n\t\t\t\tfor ( const item of changes ) {\n\t\t\t\t\twriter.setAttribute( 'listIndent', item.listIndent, item.element );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If we are turning on, we might change some items that are already `listItem`s but with different type.\n\t\t\t// Changing one nested list item to other type should also trigger changing all its siblings so the\n\t\t\t// whole nested list is of the same type.\n\t\t\t// Example (assume changing to numbered list):\n\t\t\t// * ------\t\t\t\t<-- do not fix, top level item\n\t\t\t//   * ------\t\t\t<-- fix, because latter list item of this item's list is changed\n\t\t\t//      * ------\t\t<-- do not fix, item is not affected (different list)\n\t\t\t//   * ------\t\t\t<-- fix, because latter list item of this item's list is changed\n\t\t\t//      * ------\t\t<-- fix, because latter list item of this item's list is changed\n\t\t\t//      * ---[--\t\t<-- already in selection\n\t\t\t//   * ------\t\t\t<-- already in selection\n\t\t\t//   * ------\t\t\t<-- already in selection\n\t\t\t// * ------\t\t\t\t<-- already in selection, but does not cause other list items to change because is top-level\n\t\t\t//   * ---]--\t\t\t<-- already in selection\n\t\t\t//   * ------\t\t\t<-- fix, because preceding list item of this item's list is changed\n\t\t\t//      * ------\t\t<-- do not fix, item is not affected (different list)\n\t\t\t// * ------\t\t\t\t<-- do not fix, top level item\n\t\t\tif ( !turnOff ) {\n\t\t\t\t// Find lowest indent among selected items. This will be indicator what is the indent of\n\t\t\t\t// top-most list affected by the command.\n\t\t\t\tlet lowestIndent = Number.POSITIVE_INFINITY;\n\n\t\t\t\tfor ( const item of blocks ) {\n\t\t\t\t\tif ( item.is( 'element', 'listItem' ) && ( item.getAttribute( 'listIndent' ) as number ) < lowestIndent ) {\n\t\t\t\t\t\tlowestIndent = item.getAttribute( 'listIndent' ) as number;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Do not execute the fix for top-level lists.\n\t\t\t\tlowestIndent = lowestIndent === 0 ? 1 : lowestIndent;\n\n\t\t\t\t// Fix types of list items that are \"before\" the selected blocks.\n\t\t\t\t_fixType( blocks, true, lowestIndent );\n\n\t\t\t\t// Fix types of list items that are \"after\" the selected blocks.\n\t\t\t\t_fixType( blocks, false, lowestIndent );\n\t\t\t}\n\n\t\t\t// Phew! Now it will be easier :).\n\t\t\t// For each block element that was in the selection, we will either: turn it to list item,\n\t\t\t// turn it to paragraph, or change it's type. Or leave it as it is.\n\t\t\t// Do it in reverse as there might be multiple blocks (same as with changing indents).\n\t\t\tfor ( const element of blocks.reverse() ) {\n\t\t\t\tif ( turnOff && element.name == 'listItem' ) {\n\t\t\t\t\t// We are turning off and the element is a `listItem` - it should be converted to `paragraph`.\n\t\t\t\t\t// List item specific attributes are removed by post fixer.\n\t\t\t\t\twriter.rename( element, 'paragraph' );\n\t\t\t\t} else if ( !turnOff && element.name != 'listItem' ) {\n\t\t\t\t\t// We are turning on and the element is not a `listItem` - it should be converted to `listItem`.\n\t\t\t\t\t// The order of operations is important to keep model in correct state.\n\t\t\t\t\twriter.setAttributes( { listType: this.type, listIndent: 0 }, element );\n\t\t\t\t\twriter.rename( element, 'listItem' );\n\t\t\t\t} else if ( !turnOff && element.name == 'listItem' && element.getAttribute( 'listType' ) != this.type ) {\n\t\t\t\t\t// We are turning on and the element is a `listItem` but has different type - change it's type and\n\t\t\t\t\t// type of it's all siblings that have same indent.\n\t\t\t\t\twriter.setAttribute( 'listType', this.type, element );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * Event fired by the {@link #execute} method.\n\t\t\t *\n\t\t\t * It allows to execute an action after executing the {@link ~ListCommand#execute} method, for example adjusting\n\t\t\t * attributes of changed blocks.\n\t\t\t *\n\t\t\t * @protected\n\t\t\t * @event _executeCleanup\n\t\t\t */\n\t\t\tthis.fire( '_executeCleanup', blocks );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @returns The current value.\n\t */\n\tprivate _getValue(): boolean {\n\t\t// Check whether closest `listItem` ancestor of the position has a correct type.\n\t\tconst listItem = first( this.editor.model.document.selection.getSelectedBlocks() );\n\n\t\treturn !!listItem && listItem.is( 'element', 'listItem' ) && listItem.getAttribute( 'listType' ) == this.type;\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @returns Whether the command should be enabled.\n\t */\n\tprivate _checkEnabled() {\n\t\t// If command value is true it means that we are in list item, so the command should be enabled.\n\t\tif ( this.value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\tif ( !firstBlock ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Otherwise, check if list item can be inserted at the position start.\n\t\treturn checkCanBecomeListItem( firstBlock, schema );\n\t}\n}\n\n/**\n * Helper function used when one or more list item have their type changed. Fixes type of other list items\n * that are affected by the change (are in same lists) but are not directly in selection. The function got extracted\n * not to duplicated code, as same fix has to be performed before and after selection.\n *\n * @param blocks Blocks that are in selection.\n * @param isBackward Specified whether fix will be applied for blocks before first selected block (`true`)\n * or blocks after last selected block (`false`).\n * @param lowestIndent Lowest indent among selected blocks.\n */\nfunction _fixType(\n\tblocks: Array<Node>,\n\tisBackward: boolean,\n\tlowestIndent: number\n) {\n\t// We need to check previous sibling of first changed item and next siblings of last changed item.\n\tconst startingItem = isBackward ? blocks[ 0 ] : blocks[ blocks.length - 1 ];\n\n\tif ( startingItem.is( 'element', 'listItem' ) ) {\n\t\tlet item = startingItem[ isBackward ? 'previousSibling' : 'nextSibling' ];\n\t\t// During processing items, keeps the lowest indent of already processed items.\n\t\t// This saves us from changing too many items.\n\t\t// Following example is for going forward as it is easier to read, however same applies to going backward.\n\t\t// * ------\n\t\t//   * ------\n\t\t//     * --[---\n\t\t//   * ------\t\t<-- `lowestIndent` should be 1\n\t\t//     * --]---\t\t<-- `startingItem`, `currentIndent` = 2, `lowestIndent` == 1\n\t\t//     * ------\t\t<-- should be fixed, `indent` == 2 == `currentIndent`\n\t\t//   * ------\t\t<-- should be fixed, set `currentIndent` to 1, `indent` == 1 == `currentIndent`\n\t\t//     * ------\t\t<-- should not be fixed, item is in different list, `indent` = 2, `indent` != `currentIndent`\n\t\t//   * ------\t\t<-- should be fixed, `indent` == 1 == `currentIndent`\n\t\t// * ------\t\t\t<-- break loop (`indent` < `lowestIndent`)\n\t\tlet currentIndent = startingItem.getAttribute( 'listIndent' ) as number;\n\n\t\t// Look back until a list item with indent lower than reference `lowestIndent`.\n\t\t// That would be the parent of nested sublist which contains item having `lowestIndent`.\n\t\twhile ( item && item.is( 'element', 'listItem' ) && ( item.getAttribute( 'listIndent' ) as number ) >= lowestIndent ) {\n\t\t\tif ( currentIndent > ( item.getAttribute( 'listIndent' ) as number ) ) {\n\t\t\t\tcurrentIndent = item.getAttribute( 'listIndent' ) as number;\n\t\t\t}\n\n\t\t\t// Found an item that is in the same nested sublist.\n\t\t\tif ( item.getAttribute( 'listIndent' ) == currentIndent ) {\n\t\t\t\t// Just add the item to selected blocks like it was selected by the user.\n\t\t\t\tblocks[ isBackward ? 'unshift' : 'push' ]( item );\n\t\t\t}\n\n\t\t\titem = item[ isBackward ? 'previousSibling' : 'nextSibling' ];\n\t\t}\n\t}\n}\n\n/**\n * Checks whether the given block can be replaced by a listItem.\n *\n * @param block A block to be tested.\n * @param schema The schema of the document.\n */\nfunction checkCanBecomeListItem( block: Element, schema: Schema ) {\n\treturn schema.checkChild( block.parent as any, 'listItem' ) && !schema.isObject( block );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/indentcommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The list indent command. It is used by the {@link module:list/list~List list feature}.\n */\nexport default class IndentCommand extends Command {\n\t/**\n\t * Determines by how much the command will change the list item's indent attribute.\n\t */\n\tprivate readonly _indentBy: 1 | -1;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param editor The editor instance.\n\t * @param indentDirection The direction of indent. If it is equal to `backward`, the command will outdent a list item.\n\t */\n\tconstructor( editor: Editor, indentDirection: 'forward' | 'backward' ) {\n\t\tsuper( editor );\n\n\t\tthis._indentBy = indentDirection == 'forward' ? 1 : -1;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Indents or outdents (depending on the {@link #constructor}'s `indentDirection` parameter) selected list items.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tlet itemsToChange = Array.from( doc.selection.getSelectedBlocks() );\n\n\t\tmodel.change( writer => {\n\t\t\tconst lastItem = itemsToChange[ itemsToChange.length - 1 ];\n\n\t\t\t// Indenting a list item should also indent all the items that are already sub-items of indented item.\n\t\t\tlet next = lastItem.nextSibling as Element | null;\n\n\t\t\t// Check all items after last indented item, as long as their indent is bigger than indent of that item.\n\t\t\twhile (\n\t\t\t\tnext && next.name == 'listItem' &&\n\t\t\t\t( next.getAttribute( 'listIndent' ) as number ) > ( lastItem.getAttribute( 'listIndent' ) as number )\n\t\t\t) {\n\t\t\t\titemsToChange.push( next );\n\n\t\t\t\tnext = next.nextSibling as Element | null;\n\t\t\t}\n\n\t\t\t// We need to be sure to keep model in correct state after each small change, because converters\n\t\t\t// bases on that state and assumes that model is correct.\n\t\t\t// Because of that, if the command outdents items, we will outdent them starting from the last item, as\n\t\t\t// it is safer.\n\t\t\tif ( this._indentBy < 0 ) {\n\t\t\t\titemsToChange = itemsToChange.reverse();\n\t\t\t}\n\n\t\t\tfor ( const item of itemsToChange ) {\n\t\t\t\tconst indent = ( item.getAttribute( 'listIndent' ) as number ) + this._indentBy;\n\n\t\t\t\t// If indent is lower than 0, it means that the item got outdented when it was not indented.\n\t\t\t\t// This means that we need to convert that list item to paragraph.\n\t\t\t\tif ( indent < 0 ) {\n\t\t\t\t\t// To keep the model as correct as possible, first rename listItem, then remove attributes,\n\t\t\t\t\t// as listItem without attributes is very incorrect and will cause problems in converters.\n\t\t\t\t\t// No need to remove attributes, will be removed by post fixer.\n\t\t\t\t\twriter.rename( item, 'paragraph' );\n\t\t\t\t}\n\t\t\t\t// If indent is >= 0, change the attribute value.\n\t\t\t\telse {\n\t\t\t\t\twriter.setAttribute( 'listIndent', indent, item );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// It allows to execute an action after executing the `~IndentCommand#execute` method, for example adjusting\n\t\t\t// attributes of changed list items.\n\t\t\tthis.fire( '_executeCleanup', itemsToChange );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @returns Whether the command should be enabled.\n\t */\n\tprivate _checkEnabled() {\n\t\t// Check whether any of position's ancestor is a list item.\n\t\tconst listItem = first( this.editor.model.document.selection.getSelectedBlocks() );\n\n\t\t// If selection is not in a list item, the command is disabled.\n\t\tif ( !listItem || !listItem.is( 'element', 'listItem' ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( this._indentBy > 0 ) {\n\t\t\t// Cannot indent first item in it's list. Check if before `listItem` is a list item that is in same list.\n\t\t\t// To be in the same list, the item has to have same attributes and cannot be \"split\" by an item with lower indent.\n\t\t\tconst indent = listItem.getAttribute( 'listIndent' ) as number;\n\t\t\tconst type = listItem.getAttribute( 'listType' ) as string;\n\n\t\t\tlet prev = listItem.previousSibling;\n\n\t\t\twhile ( prev && prev.is( 'element', 'listItem' ) && ( prev.getAttribute( 'listIndent' ) as number ) >= indent ) {\n\t\t\t\tif ( prev.getAttribute( 'listIndent' ) == indent ) {\n\t\t\t\t\t// The item is on the same level.\n\t\t\t\t\t// If it has same type, it means that we found a preceding sibling from the same list.\n\t\t\t\t\t// If it does not have same type, it means that `listItem` is on different list (this can happen only\n\t\t\t\t\t// on top level lists, though).\n\t\t\t\t\treturn prev.getAttribute( 'listType' ) == type;\n\t\t\t\t}\n\n\t\t\t\tprev = prev.previousSibling;\n\t\t\t}\n\n\t\t\t// Could not find similar list item, this means that `listItem` is first in its list.\n\t\t\treturn false;\n\t\t}\n\n\t\t// If we are outdenting it is enough to be in list item. Every list item can always be outdented.\n\t\treturn true;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/utils\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport {\n\tTreeWalker,\n\tgetFillerOffset,\n\ttype DowncastConversionApi,\n\ttype DowncastWriter,\n\ttype Element,\n\ttype Item,\n\ttype Model,\n\ttype Position,\n\ttype ViewContainerElement,\n\ttype ViewElement,\n\ttype ViewItem,\n\ttype ViewPosition\n} from 'ckeditor5/src/engine';\n\nimport { ButtonView, type ButtonExecuteEvent } from 'ckeditor5/src/ui';\n\n/**\n * Creates a list item {@link module:engine/view/containerelement~ContainerElement}.\n *\n * @param writer The writer instance.\n */\nexport function createViewListItemElement( writer: DowncastWriter ): ViewContainerElement {\n\tconst viewItem = writer.createContainerElement( 'li' );\n\n\tviewItem.getFillerOffset = getListItemFillerOffset;\n\n\treturn viewItem;\n}\n\n/**\n * Helper function that creates a `<ul><li></li></ul>` or (`<ol>`) structure out of the given `modelItem` model `listItem` element.\n * Then, it binds the created view list item (`<li>`) with the model `listItem` element.\n * The function then returns the created view list item (`<li>`).\n *\n * @param modelItem Model list item.\n * @param conversionApi Conversion interface.\n * @returns View list element.\n */\nexport function generateLiInUl( modelItem: Item, conversionApi: DowncastConversionApi ): ViewContainerElement {\n\tconst mapper = conversionApi.mapper;\n\tconst viewWriter = conversionApi.writer;\n\tconst listType = modelItem.getAttribute( 'listType' ) == 'numbered' ? 'ol' : 'ul';\n\tconst viewItem = createViewListItemElement( viewWriter );\n\n\tconst viewList = viewWriter.createContainerElement( listType, null );\n\n\tviewWriter.insert( viewWriter.createPositionAt( viewList, 0 ), viewItem );\n\n\tmapper.bindElements( modelItem as any, viewItem );\n\n\treturn viewItem;\n}\n\n/**\n * Helper function that inserts a view list at a correct place and merges it with its siblings.\n * It takes a model list item element (`modelItem`) and a corresponding view list item element (`injectedItem`). The view list item\n * should be in a view list element (`<ul>` or `<ol>`) and should be its only child.\n * See comments below to better understand the algorithm.\n *\n * @param modelItem Model list item.\n * @param injectedItem\n * @param conversionApi Conversion interface.\n * @param model The model instance.\n */\nexport function injectViewList(\n\tmodelItem: Element,\n\tinjectedItem: ViewContainerElement,\n\tconversionApi: DowncastConversionApi,\n\tmodel: Model\n): void {\n\tconst injectedList = injectedItem.parent as ViewElement;\n\tconst mapper = conversionApi.mapper;\n\tconst viewWriter = conversionApi.writer;\n\n\t// The position where the view list will be inserted.\n\tlet insertPosition = mapper.toViewPosition( model.createPositionBefore( modelItem ) );\n\n\t// 1. Find the previous list item that has the same or smaller indent. Basically we are looking for the first model item\n\t// that is a \"parent\" or \"sibling\" of the injected model item.\n\t// If there is no such list item, it means that the injected list item is the first item in \"its list\".\n\tconst refItem = getSiblingListItem( modelItem.previousSibling, {\n\t\tsameIndent: true,\n\t\tsmallerIndent: true,\n\t\tlistIndent: modelItem.getAttribute( 'listIndent' ) as number\n\t} );\n\tconst prevItem = modelItem.previousSibling as Element | null;\n\n\tif ( refItem && refItem.getAttribute( 'listIndent' ) == modelItem.getAttribute( 'listIndent' ) ) {\n\t\t// There is a list item with the same indent - we found the same-level sibling.\n\t\t// Break the list after it. The inserted view item will be added in the broken space.\n\t\tconst viewItem = mapper.toViewElement( refItem )!;\n\t\tinsertPosition = viewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\t} else {\n\t\t// There is no list item with the same indent. Check the previous model item.\n\t\tif ( prevItem && prevItem.name == 'listItem' ) {\n\t\t\t// If it is a list item, it has to have a lower indent.\n\t\t\t// It means that the inserted item should be added to it as its nested item.\n\t\t\tinsertPosition = mapper.toViewPosition( model.createPositionAt( prevItem, 'end' ) );\n\n\t\t\t// There could be some not mapped elements (eg. span in to-do list) but we need to insert\n\t\t\t// a nested list directly inside the li element.\n\t\t\tconst mappedViewAncestor = mapper.findMappedViewAncestor( insertPosition );\n\t\t\tconst nestedList = findNestedList( mappedViewAncestor );\n\n\t\t\t// If there already is some nested list, then use it's position.\n\t\t\tif ( nestedList ) {\n\t\t\t\tinsertPosition = viewWriter.createPositionBefore( nestedList );\n\t\t\t} else {\n\t\t\t\t// Else just put new list on the end of list item content.\n\t\t\t\tinsertPosition = viewWriter.createPositionAt( mappedViewAncestor, 'end' );\n\t\t\t}\n\t\t} else {\n\t\t\t// The previous item is not a list item (or does not exist at all).\n\t\t\t// Just map the position and insert the view item at the mapped position.\n\t\t\tinsertPosition = mapper.toViewPosition( model.createPositionBefore( modelItem ) );\n\t\t}\n\t}\n\n\tinsertPosition = positionAfterUiElements( insertPosition );\n\n\t// Insert the view item.\n\tviewWriter.insert( insertPosition, injectedList );\n\n\t// 2. Handle possible children of the injected model item.\n\tif ( prevItem && prevItem.name == 'listItem' ) {\n\t\tconst prevView = mapper.toViewElement( prevItem )!;\n\n\t\tconst walkerBoundaries = viewWriter.createRange( viewWriter.createPositionAt( prevView, 0 ), insertPosition );\n\t\tconst walker = walkerBoundaries.getWalker( { ignoreElementEnd: true } );\n\n\t\tfor ( const value of walker ) {\n\t\t\tif ( value.item.is( 'element', 'li' ) ) {\n\t\t\t\tconst breakPosition = viewWriter.breakContainer( viewWriter.createPositionBefore( value.item ) );\n\t\t\t\tconst viewList = value.item.parent as ViewElement;\n\n\t\t\t\tconst targetPosition = viewWriter.createPositionAt( injectedItem, 'end' );\n\t\t\t\tmergeViewLists( viewWriter, targetPosition.nodeBefore!, targetPosition.nodeAfter! );\n\t\t\t\tviewWriter.move( viewWriter.createRangeOn( viewList ), targetPosition );\n\n\t\t\t\t// This is bad, but those lists will be removed soon anyway.\n\t\t\t\t( walker as any )._position = breakPosition;\n\t\t\t}\n\t\t}\n\t} else {\n\t\tconst nextViewList = injectedList.nextSibling;\n\n\t\tif ( nextViewList && ( nextViewList.is( 'element', 'ul' ) || nextViewList.is( 'element', 'ol' ) ) ) {\n\t\t\tlet lastSubChild = null;\n\n\t\t\tfor ( const child of nextViewList.getChildren() as Iterable<ViewElement> ) {\n\t\t\t\tconst modelChild = mapper.toModelElement( child );\n\n\t\t\t\tif (\n\t\t\t\t\tmodelChild &&\n\t\t\t\t\t( modelChild.getAttribute( 'listIndent' ) as number ) > ( modelItem.getAttribute( 'listIndent' ) as number )\n\t\t\t\t) {\n\t\t\t\t\tlastSubChild = child;\n\t\t\t\t} else {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( lastSubChild ) {\n\t\t\t\tviewWriter.breakContainer( viewWriter.createPositionAfter( lastSubChild ) );\n\t\t\t\tviewWriter.move(\n\t\t\t\t\tviewWriter.createRangeOn( lastSubChild.parent as any ),\n\t\t\t\t\tviewWriter.createPositionAt( injectedItem, 'end' )\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\t// Merge the inserted view list with its possible neighbor lists.\n\tmergeViewLists( viewWriter, injectedList, injectedList.nextSibling! );\n\tmergeViewLists( viewWriter, injectedList.previousSibling!, injectedList );\n}\n\n/**\n * Helper function that takes two parameters that are expected to be view list elements, and merges them.\n * The merge happens only if both parameters are list elements of the same type (the same element name and the same class attributes).\n *\n * @param viewWriter The writer instance.\n * @param firstList The first element to compare.\n * @param secondList The second element to compare.\n * @returns The position after merge or `null` when there was no merge.\n */\nexport function mergeViewLists(\n\tviewWriter: DowncastWriter,\n\tfirstList: ViewItem,\n\tsecondList: ViewItem\n): ViewPosition | null;\n\nexport function mergeViewLists(\n\tviewWriter: DowncastWriter,\n\tfirstList: any,\n\tsecondList: any\n): ViewPosition | null {\n\t// Check if two lists are going to be merged.\n\tif ( !firstList || !secondList || ( firstList.name != 'ul' && firstList.name != 'ol' ) ) {\n\t\treturn null;\n\t}\n\n\t// Both parameters are list elements, so compare types now.\n\tif ( firstList.name != secondList.name || firstList.getAttribute( 'class' ) !== secondList.getAttribute( 'class' ) ) {\n\t\treturn null;\n\t}\n\n\treturn viewWriter.mergeContainers( viewWriter.createPositionAfter( firstList ) );\n}\n\n/**\n * Helper function that for a given `view.Position`, returns a `view.Position` that is after all `view.UIElement`s that\n * are after the given position.\n *\n * For example:\n * `<container:p>foo^<ui:span></ui:span><ui:span></ui:span>bar</container:p>`\n * For position ^, the position before \"bar\" will be returned.\n *\n */\nexport function positionAfterUiElements( viewPosition: ViewPosition ): ViewPosition {\n\treturn viewPosition.getLastMatchingPosition( value => value.item.is( 'uiElement' ) );\n}\n\n/**\n * Helper function that searches for a previous list item sibling of a given model item that meets the given criteria\n * passed by the options object.\n *\n * @param options Search criteria.\n * @param options.sameIndent Whether the sought sibling should have the same indentation.\n * @param options.smallerIndent Whether the sought sibling should have a smaller indentation.\n * @param options.listIndent The reference indentation.\n * @param options.direction Walking direction.\n */\nexport function getSiblingListItem(\n\tmodelItem: Item | null,\n\toptions: {\n\t\tsameIndent?: boolean;\n\t\tsmallerIndent?: boolean;\n\t\tlistIndent?: number;\n\t\tdirection?: 'forward' | 'backward';\n\t}\n): Element | null {\n\tconst sameIndent = !!options.sameIndent;\n\tconst smallerIndent = !!options.smallerIndent;\n\tconst indent = options.listIndent;\n\n\tlet item: any = modelItem;\n\n\twhile ( item && item.name == 'listItem' ) {\n\t\tconst itemIndent = item.getAttribute( 'listIndent' ) as number;\n\n\t\tif ( ( sameIndent && indent == itemIndent ) || ( smallerIndent && indent as number > itemIndent ) ) {\n\t\t\treturn item;\n\t\t}\n\n\t\tif ( options.direction === 'forward' ) {\n\t\t\titem = item.nextSibling;\n\t\t} else {\n\t\t\titem = item.previousSibling;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Helper method for creating a UI button and linking it with an appropriate command.\n *\n * @internal\n * @param editor The editor instance to which the UI component will be added.\n * @param commandName The name of the command.\n * @param label The button label.\n * @param icon The source of the icon.\n */\nexport function createUIComponent(\n\teditor: Editor,\n\tcommandName: 'bulletedList' | 'numberedList' | 'todoList',\n\tlabel: string,\n\ticon: string\n): void {\n\teditor.ui.componentFactory.add( commandName, locale => {\n\t\tconst command = editor.commands.get( commandName )!;\n\t\tconst buttonView = new ButtonView( locale );\n\n\t\tbuttonView.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true,\n\t\t\tisToggleable: true\n\t\t} );\n\n\t\t// Bind button model to command.\n\t\tbuttonView.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t// Execute command.\n\t\tbuttonView.on<ButtonExecuteEvent>( 'execute', () => {\n\t\t\teditor.execute( commandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn buttonView;\n\t} );\n}\n\n/**\n * Returns a first list view element that is direct child of the given view element.\n */\nexport function findNestedList( viewElement: ViewElement ): ViewElement | null {\n\tfor ( const node of ( viewElement.getChildren() as Iterable<ViewElement> ) ) {\n\t\tif ( node.name == 'ul' || node.name == 'ol' ) {\n\t\t\treturn node;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns an array with all `listItem` elements that represent the same list.\n *\n * It means that values of `listIndent`, `listType`, `listStyle`, `listReversed` and `listStart` for all items are equal.\n *\n * Additionally, if the `position` is inside a list item, that list item will be returned as well.\n *\n * @param position Starting position.\n * @param direction Walking direction.\n */\nexport function getSiblingNodes( position: Position, direction: 'forward' | 'backward' ): Array<Element> {\n\tconst items: Array<Element> = [];\n\tconst listItem = position.parent as Element;\n\tconst walkerOptions = {\n\t\tignoreElementEnd: false,\n\t\tstartPosition: position,\n\t\tshallow: true,\n\t\tdirection\n\t};\n\tconst limitIndent = listItem.getAttribute( 'listIndent' ) as number;\n\tconst nodes = [ ...new TreeWalker( walkerOptions ) ]\n\t\t.filter( value => value.item.is( 'element' ) )\n\t\t.map( value => value.item );\n\n\tfor ( const element of nodes ) {\n\t\t// If found something else than `listItem`, we're out of the list scope.\n\t\tif ( !element.is( 'element', 'listItem' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// If current parsed item has lower indent that element that the element that was a starting point,\n\t\t// it means we left a nested list. Abort searching items.\n\t\t//\n\t\t// ■ List item 1.       [listIndent=0]\n\t\t//     ○ List item 2.[] [listIndent=1], limitIndent = 1,\n\t\t//     ○ List item 3.   [listIndent=1]\n\t\t// ■ List item 4.       [listIndent=0]\n\t\t//\n\t\t// Abort searching when leave nested list.\n\t\tif ( ( element.getAttribute( 'listIndent' ) as number ) < limitIndent ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ■ List item 1.[]     [listIndent=0] limitIndent = 0,\n\t\t//     ○ List item 2.   [listIndent=1]\n\t\t//     ○ List item 3.   [listIndent=1]\n\t\t// ■ List item 4.       [listIndent=0]\n\t\t//\n\t\t// Ignore nested lists.\n\t\tif ( ( element.getAttribute( 'listIndent' ) as number ) > limitIndent ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// ■ List item 1.[]  [listType=bulleted]\n\t\t// 1. List item 2.   [listType=numbered]\n\t\t// 2.List item 3.    [listType=numbered]\n\t\t//\n\t\t// Abort searching when found a different kind of a list.\n\t\tif ( element.getAttribute( 'listType' ) !== listItem.getAttribute( 'listType' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ■ List item 1.[]  [listType=bulleted]\n\t\t// ■ List item 2.    [listType=bulleted]\n\t\t// ○ List item 3.    [listType=bulleted]\n\t\t// ○ List item 4.    [listType=bulleted]\n\t\t//\n\t\t// Abort searching when found a different list style,\n\t\tif ( element.getAttribute( 'listStyle' ) !== listItem.getAttribute( 'listStyle' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ... different direction\n\t\tif ( element.getAttribute( 'listReversed' ) !== listItem.getAttribute( 'listReversed' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\t// ... and different start index\n\t\tif ( element.getAttribute( 'listStart' ) !== listItem.getAttribute( 'listStart' ) ) {\n\t\t\tbreak;\n\t\t}\n\n\t\tif ( direction === 'backward' ) {\n\t\t\titems.unshift( element );\n\t\t} else {\n\t\t\titems.push( element );\n\t\t}\n\t}\n\n\treturn items;\n}\n\n/**\n * Returns an array with all `listItem` elements in the model selection.\n *\n * It returns all the items even if only a part of the list is selected, including items that belong to nested lists.\n * If no list is selected, it returns an empty array.\n * The order of the elements is not specified.\n *\n * @internal\n */\nexport function getSelectedListItems( model: Model ): Array<Element> {\n\tconst document = model.document;\n\n\t// For all selected blocks find all list items that are being selected\n\t// and update the `listStyle` attribute in those lists.\n\tlet listItems = [ ...document.selection.getSelectedBlocks() ]\n\t\t.filter( element => element.is( 'element', 'listItem' ) )\n\t\t.map( element => {\n\t\t\tconst position = model.change( writer => writer.createPositionAt( element, 0 ) );\n\n\t\t\treturn [\n\t\t\t\t...getSiblingNodes( position, 'backward' ),\n\t\t\t\t...getSiblingNodes( position, 'forward' )\n\t\t\t];\n\t\t} )\n\t\t.flat();\n\n\t// Since `getSelectedBlocks()` can return items that belong to the same list, and\n\t// `getSiblingNodes()` returns the entire list, we need to remove duplicated items.\n\tlistItems = [ ...new Set( listItems ) ];\n\n\treturn listItems;\n}\n\nconst BULLETED_LIST_STYLE_TYPES = [ 'disc', 'circle', 'square' ];\n\n// There's a lot of them (https://www.w3.org/TR/css-counter-styles-3/#typedef-counter-style).\n// Let's support only those that can be selected by ListPropertiesUI.\nconst NUMBERED_LIST_STYLE_TYPES = [\n\t'decimal',\n\t'decimal-leading-zero',\n\t'lower-roman',\n\t'upper-roman',\n\t'lower-latin',\n\t'upper-latin'\n];\n\n/**\n * Checks whether the given list-style-type is supported by numbered or bulleted list.\n */\nexport function getListTypeFromListStyleType( listStyleType: string ): 'bulleted' | 'numbered' | null {\n\tif ( BULLETED_LIST_STYLE_TYPES.includes( listStyleType ) ) {\n\t\treturn 'bulleted';\n\t}\n\n\tif ( NUMBERED_LIST_STYLE_TYPES.includes( listStyleType ) ) {\n\t\treturn 'numbered';\n\t}\n\n\treturn null;\n}\n\n/**\n * Implementation of getFillerOffset for view list item element.\n *\n * @returns Block filler offset or `null` if block filler is not needed.\n */\nfunction getListItemFillerOffset( this: any ): number | null {\n\tconst hasOnlyLists = !this.isEmpty && ( this.getChild( 0 ).name == 'ul' || this.getChild( 0 ).name == 'ol' );\n\n\tif ( this.isEmpty || hasOnlyLists ) {\n\t\treturn 0;\n\t}\n\n\treturn getFillerOffset.call( this );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listutils\n */\n\nimport type { Element, Model, Position } from 'ckeditor5/src/engine';\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport {\n\tgetListTypeFromListStyleType,\n\tgetSelectedListItems,\n\tgetSiblingNodes\n} from './utils';\n\n/**\n * A set of helpers related to document lists.\n */\nexport default class ListUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ListUtils' {\n\t\treturn 'ListUtils';\n\t}\n\n\t/**\n\t * Checks whether the given list-style-type is supported by numbered or bulleted list.\n\t */\n\tpublic getListTypeFromListStyleType( listStyleType: string ): 'bulleted' | 'numbered' | null {\n\t\treturn getListTypeFromListStyleType( listStyleType );\n\t}\n\n\t/**\n\t * Returns an array with all `listItem` elements in the model selection.\n\t *\n\t * It returns all the items even if only a part of the list is selected, including items that belong to nested lists.\n\t * If no list is selected, it returns an empty array.\n\t * The order of the elements is not specified.\n\t */\n\tpublic getSelectedListItems( model: Model ): Array<Element> {\n\t\treturn getSelectedListItems( model );\n\t}\n\n\t/**\n\t * Returns an array with all `listItem` elements that represent the same list.\n\t *\n\t * It means that values of `listIndent`, `listType`, `listStyle`, `listReversed` and `listStart` for all items are equal.\n\t *\n\t * Additionally, if the `position` is inside a list item, that list item will be returned as well.\n\t *\n\t * @param position Starting position.\n\t * @param direction Walking direction.\n\t */\n\tpublic getSiblingNodes( position: Position, direction: 'forward' | 'backward' ): Array<Element> {\n\t\treturn getSiblingNodes( position, direction );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/converters\n */\n\nimport {\n\tTreeWalker,\n\ttype DowncastAttributeEvent,\n\ttype DowncastConversionApi,\n\ttype DowncastInsertEvent,\n\ttype DowncastRemoveEvent,\n\ttype Element,\n\ttype MapperModelToViewPositionEvent,\n\ttype MapperViewToModelPositionEvent,\n\ttype Model,\n\ttype ModelInsertContentEvent,\n\ttype Node,\n\ttype Position,\n\ttype UpcastConversionApi,\n\ttype UpcastElementEvent,\n\ttype View,\n\ttype ViewContainerElement,\n\ttype ViewElement,\n\ttype ViewNode,\n\ttype ViewPosition,\n\ttype ViewTypeCheckable,\n\ttype Writer\n} from 'ckeditor5/src/engine';\n\nimport type { GetCallback } from 'ckeditor5/src/utils';\n\nimport {\n\tgenerateLiInUl,\n\tinjectViewList,\n\tmergeViewLists,\n\tgetSiblingListItem,\n\tpositionAfterUiElements\n} from './utils';\n\n/**\n * A model-to-view converter for the `listItem` model element insertion.\n *\n * It creates a `<ul><li></li><ul>` (or `<ol>`) view structure out of a `listItem` model element, inserts it at the correct\n * position, and merges the list with surrounding lists (if available).\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n * @param model Model instance.\n */\nexport function modelViewInsertion( model: Model ): GetCallback<DowncastInsertEvent<Element>> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst consumable = conversionApi.consumable;\n\n\t\tif ( !consumable.test( data.item, 'insert' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listType' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listIndent' )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tconsumable.consume( data.item, 'insert' );\n\t\tconsumable.consume( data.item, 'attribute:listType' );\n\t\tconsumable.consume( data.item, 'attribute:listIndent' );\n\n\t\tconst modelItem = data.item;\n\t\tconst viewItem = generateLiInUl( modelItem, conversionApi );\n\n\t\tinjectViewList( modelItem, viewItem, conversionApi, model );\n\t};\n}\n\n/**\n * A model-to-view converter for the `listItem` model element removal.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:remove\n * @param model Model instance.\n * @returns Returns a conversion callback.\n */\nexport function modelViewRemove( model: Model ): GetCallback<DowncastRemoveEvent> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst viewPosition = conversionApi.mapper.toViewPosition( data.position );\n\t\tconst viewStart = viewPosition.getLastMatchingPosition( value => !value.item.is( 'element', 'li' ) );\n\t\tconst viewItem = viewStart.nodeAfter as ViewElement;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// 1. Break the container after and before the list item.\n\t\t// This will create a view list with one view list item - the one to remove.\n\t\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\t\tviewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\n\t\t// 2. Remove the list with the item to remove.\n\t\tconst viewList = viewItem.parent as ViewElement;\n\t\tconst viewListPrev = viewList.previousSibling;\n\t\tconst removeRange = viewWriter.createRangeOn( viewList );\n\t\tconst removed = viewWriter.remove( removeRange );\n\n\t\t// 3. Merge the whole created by breaking and removing the list.\n\t\tif ( viewListPrev && viewListPrev.nextSibling ) {\n\t\t\tmergeViewLists( viewWriter, viewListPrev, viewListPrev.nextSibling );\n\t\t}\n\n\t\t// 4. Bring back nested list that was in the removed <li>.\n\t\tconst modelItem = conversionApi.mapper.toModelElement( viewItem )!;\n\n\t\thoistNestedLists(\n\t\t\tmodelItem.getAttribute( 'listIndent' ) as number + 1,\n\t\t\tdata.position,\n\t\t\tremoveRange.start,\n\t\t\tviewItem,\n\t\t\tconversionApi,\n\t\t\tmodel\n\t\t);\n\n\t\t// 5. Unbind removed view item and all children.\n\t\tfor ( const child of viewWriter.createRangeIn( removed ).getItems() ) {\n\t\t\tconversionApi.mapper.unbindViewElement( child as ViewElement );\n\t\t}\n\n\t\tevt.stop();\n\t};\n}\n\n/**\n * A model-to-view converter for the `type` attribute change on the `listItem` model element.\n *\n * This change means that the `<li>` element parent changes from `<ul>` to `<ol>` (or vice versa). This is accomplished\n * by breaking view elements and changing their name. The next {@link module:list/list/converters~modelViewMergeAfterChangeType}\n * converter will attempt to merge split nodes.\n *\n * Splitting this conversion into 2 steps makes it possible to add an additional conversion in the middle.\n * Check {@link module:list/todolist/todolistconverters~modelViewChangeType} to see an example of it.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n */\nexport const modelViewChangeType: GetCallback<DowncastAttributeEvent<Element>> = ( evt, data, conversionApi ) => {\n\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\treturn;\n\t}\n\n\tconst viewItem = conversionApi.mapper.toViewElement( data.item )!;\n\tconst viewWriter = conversionApi.writer;\n\n\t// Break the container after and before the list item.\n\t// This will create a view list with one view list item -- the one that changed type.\n\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\tviewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\n\t// Change name of the view list that holds the changed view item.\n\t// We cannot just change name property, because that would not render properly.\n\tconst viewList = viewItem.parent as ViewContainerElement;\n\tconst listName = data.attributeNewValue == 'numbered' ? 'ol' : 'ul';\n\n\tviewWriter.rename( listName, viewList );\n};\n\n/**\n * A model-to-view converter that attempts to merge nodes split by {@link module:list/list/converters~modelViewChangeType}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n */\nexport const modelViewMergeAfterChangeType: GetCallback<DowncastAttributeEvent<Element>> = ( evt, data, conversionApi ) => {\n\tconversionApi.consumable.consume( data.item, evt.name );\n\n\tconst viewItem = conversionApi.mapper.toViewElement( data.item )!;\n\tconst viewList = viewItem.parent as ViewContainerElement;\n\tconst viewWriter = conversionApi.writer;\n\n\t// Merge the changed view list with other lists, if possible.\n\tmergeViewLists( viewWriter, viewList, viewList.nextSibling! );\n\tmergeViewLists( viewWriter, viewList.previousSibling!, viewList );\n};\n\n/**\n * A model-to-view converter for the `listIndent` attribute change on the `listItem` model element.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param model Model instance.\n * @returns Returns a conversion callback.\n */\nexport function modelViewChangeIndent( model: Model ): GetCallback<DowncastAttributeEvent<Element>> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, 'attribute:listIndent' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewItem = conversionApi.mapper.toViewElement( data.item ) as ViewContainerElement;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\t// 1. Break the container after and before the list item.\n\t\t// This will create a view list with one view list item -- the one that changed type.\n\t\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\t\tviewWriter.breakContainer( viewWriter.createPositionAfter( viewItem ) );\n\n\t\t// 2. Extract view list with changed view list item and merge \"hole\" possibly created by breaking and removing elements.\n\t\tconst viewList = viewItem.parent as ViewElement;\n\t\tconst viewListPrev = viewList.previousSibling;\n\t\tconst removeRange = viewWriter.createRangeOn( viewList );\n\t\tviewWriter.remove( removeRange );\n\n\t\tif ( viewListPrev && viewListPrev.nextSibling ) {\n\t\t\tmergeViewLists( viewWriter, viewListPrev, viewListPrev.nextSibling );\n\t\t}\n\n\t\t// 3. Bring back nested list that was in the removed <li>.\n\t\thoistNestedLists(\n\t\t\tdata.attributeOldValue as number + 1,\n\t\t\tdata.range.start,\n\t\t\tremoveRange.start,\n\t\t\tviewItem,\n\t\t\tconversionApi,\n\t\t\tmodel\n\t\t);\n\n\t\t// 4. Inject view list like it is newly inserted.\n\t\tinjectViewList( data.item, viewItem, conversionApi, model );\n\n\t\t// 5. Consume insertion of children inside the item. They are already handled by re-building the item in view.\n\t\tfor ( const child of data.item.getChildren() ) {\n\t\t\tconversionApi.consumable.consume( child, 'insert' );\n\t\t}\n\t};\n}\n\n/**\n * A special model-to-view converter introduced by the {@link module:list/list~List list feature}. This converter is fired for\n * insert change of every model item, and should be fired before the actual converter. The converter checks whether the inserted\n * model item is a non-`listItem` element. If it is, and it is inserted inside a view list, the converter breaks the\n * list so the model element is inserted to the view parent element corresponding to its model parent element.\n *\n * The converter prevents such situations:\n *\n * ```xml\n * // Model:                        // View:\n * <listItem>foo</listItem>         <ul>\n * <listItem>bar</listItem>             <li>foo</li>\n *                                      <li>bar</li>\n *                                  </ul>\n *\n * // After change:                 // Correct view guaranteed by this converter:\n * <listItem>foo</listItem>         <ul><li>foo</li></ul><p>xxx</p><ul><li>bar</li></ul>\n * <paragraph>xxx</paragraph>       // Instead of this wrong view state:\n * <listItem>bar</listItem>         <ul><li>foo</li><p>xxx</p><li>bar</li></ul>\n * ```\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n */\nexport const modelViewSplitOnInsert: GetCallback<DowncastInsertEvent<Element>> = ( evt, data, conversionApi ) => {\n\tif ( !conversionApi.consumable.test( data.item, evt.name ) ) {\n\t\treturn;\n\t}\n\n\tif ( data.item.name != 'listItem' ) {\n\t\tlet viewPosition = conversionApi.mapper.toViewPosition( data.range.start );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst lists = [];\n\n\t\t// Break multiple ULs/OLs if there are.\n\t\t//\n\t\t// Imagine following list:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//     1.1.1 --------\n\t\t//     1.1.2 --------\n\t\t//     1.1.3 --------\n\t\t//       1.1.3.1 --------\n\t\t//   1.2 --------\n\t\t//     1.2.1 --------\n\t\t// 2 --------\n\t\t//\n\t\t// Insert paragraph after item 1.1.1:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//     1.1.1 --------\n\t\t//\n\t\t// Lorem ipsum.\n\t\t//\n\t\t//     1.1.2 --------\n\t\t//     1.1.3 --------\n\t\t//       1.1.3.1 --------\n\t\t//   1.2 --------\n\t\t//     1.2.1 --------\n\t\t// 2 --------\n\t\t//\n\t\t// In this case 1.1.2 has to become beginning of a new list.\n\t\t// We need to break list before 1.1.2 (obvious), then we need to break list also before 1.2.\n\t\t// Then we need to move those broken pieces one after another and merge:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//     1.1.1 --------\n\t\t//\n\t\t// Lorem ipsum.\n\t\t//\n\t\t// 1.1.2 --------\n\t\t//   1.1.3 --------\n\t\t//     1.1.3.1 --------\n\t\t// 1.2 --------\n\t\t//   1.2.1 --------\n\t\t// 2 --------\n\t\t//\n\t\twhile ( ( viewPosition.parent as any ).name == 'ul' || ( viewPosition.parent as any ).name == 'ol' ) {\n\t\t\tviewPosition = viewWriter.breakContainer( viewPosition );\n\n\t\t\tif ( ( viewPosition.parent as any ).name != 'li' ) {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\t// Remove lists that are after inserted element.\n\t\t\t// They will be brought back later, below the inserted element.\n\t\t\tconst removeStart = viewPosition;\n\t\t\tconst removeEnd = viewWriter.createPositionAt( viewPosition.parent as any, 'end' );\n\n\t\t\t// Don't remove if there is nothing to remove.\n\t\t\tif ( !removeStart.isEqual( removeEnd ) ) {\n\t\t\t\tconst removed = viewWriter.remove( viewWriter.createRange( removeStart, removeEnd ) );\n\t\t\t\tlists.push( removed );\n\t\t\t}\n\n\t\t\tviewPosition = viewWriter.createPositionAfter( viewPosition.parent as any );\n\t\t}\n\n\t\t// Bring back removed lists.\n\t\tif ( lists.length > 0 ) {\n\t\t\tfor ( let i = 0; i < lists.length; i++ ) {\n\t\t\t\tconst previousList = viewPosition.nodeBefore;\n\t\t\t\tconst insertedRange = viewWriter.insert( viewPosition, lists[ i ] );\n\t\t\t\tviewPosition = insertedRange.end;\n\n\t\t\t\t// Don't merge first list! We want a split in that place (this is why this converter is introduced).\n\t\t\t\tif ( i > 0 ) {\n\t\t\t\t\tconst mergePos = mergeViewLists( viewWriter, previousList!, previousList!.nextSibling! );\n\n\t\t\t\t\t// If `mergePos` is in `previousList` it means that the lists got merged.\n\t\t\t\t\t// In this case, we need to fix insert position.\n\t\t\t\t\tif ( mergePos && mergePos.parent == previousList ) {\n\t\t\t\t\t\tviewPosition.offset--;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Merge last inserted list with element after it.\n\t\t\tmergeViewLists( viewWriter, viewPosition.nodeBefore!, viewPosition.nodeAfter! );\n\t\t}\n\t}\n};\n\n/**\n * A special model-to-view converter introduced by the {@link module:list/list~List list feature}. This converter takes care of\n * merging view lists after something is removed or moved from near them.\n *\n * Example:\n *\n * ```xml\n * // Model:                        // View:\n * <listItem>foo</listItem>         <ul><li>foo</li></ul>\n * <paragraph>xxx</paragraph>       <p>xxx</p>\n * <listItem>bar</listItem>         <ul><li>bar</li></ul>\n *\n * // After change:                 // Correct view guaranteed by this converter:\n * <listItem>foo</listItem>         <ul>\n * <listItem>bar</listItem>             <li>foo</li>\n *                                      <li>bar</li>\n *                                  </ul>\n * ```\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:remove\n */\nexport const modelViewMergeAfter: GetCallback<DowncastRemoveEvent> = ( evt, data, conversionApi ) => {\n\tconst viewPosition = conversionApi.mapper.toViewPosition( data.position );\n\tconst viewItemPrev = viewPosition.nodeBefore;\n\tconst viewItemNext = viewPosition.nodeAfter;\n\n\t// Merge lists if something (remove, move) was done from inside of list.\n\t// Merging will be done only if both items are view lists of the same type.\n\t// The check is done inside the helper function.\n\tmergeViewLists( conversionApi.writer, viewItemPrev!, viewItemNext! );\n};\n\n/**\n * A view-to-model converter that converts the `<li>` view elements into the `listItem` model elements.\n *\n * To set correct values of the `listType` and `listIndent` attributes the converter:\n * * checks `<li>`'s parent,\n * * stores and increases the `conversionApi.store.indent` value when `<li>`'s sub-items are converted.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n */\nexport const viewModelConverter: GetCallback<UpcastElementEvent> = ( evt, data, conversionApi ) => {\n\tif ( conversionApi.consumable.consume( data.viewItem, { name: true } ) ) {\n\t\tconst writer = conversionApi.writer;\n\n\t\t// 1. Create `listItem` model element.\n\t\tconst listItem = writer.createElement( 'listItem' );\n\n\t\t// 2. Handle `listItem` model element attributes.\n\t\tconst indent = getIndent( data.viewItem );\n\n\t\twriter.setAttribute( 'listIndent', indent, listItem );\n\n\t\t// Set 'bulleted' as default. If this item is pasted into a context,\n\t\tconst type = data.viewItem.parent && ( data.viewItem.parent as any ).name == 'ol' ? 'numbered' : 'bulleted';\n\t\twriter.setAttribute( 'listType', type, listItem );\n\n\t\tif ( !conversionApi.safeInsert( listItem, data.modelCursor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst nextPosition = viewToModelListItemChildrenConverter( listItem, data.viewItem.getChildren(), conversionApi );\n\n\t\t// Result range starts before the first item and ends after the last.\n\t\tdata.modelRange = writer.createRange( data.modelCursor, nextPosition );\n\n\t\tconversionApi.updateConversionResult( listItem, data );\n\t}\n};\n\n/**\n * A view-to-model converter for the `<ul>` and `<ol>` view elements that cleans the input view of garbage.\n * This is mostly to clean whitespaces from between the `<li>` view elements inside the view list element, however, also\n * incorrect data can be cleared if the view was incorrect.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n */\nexport const cleanList: GetCallback<UpcastElementEvent> = ( evt, data, conversionApi ) => {\n\tif ( conversionApi.consumable.test( data.viewItem, { name: true } ) ) {\n\t\t// Caching children because when we start removing them iterating fails.\n\t\tconst children = Array.from( data.viewItem.getChildren() );\n\n\t\tfor ( const child of children ) {\n\t\t\tconst isWrongElement = !( child.is( 'element', 'li' ) || isList( child ) );\n\n\t\t\tif ( isWrongElement ) {\n\t\t\t\tchild._remove();\n\t\t\t}\n\t\t}\n\t}\n};\n\n/**\n * A view-to-model converter for the `<li>` elements that cleans whitespace formatting from the input view.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n */\nexport const cleanListItem: GetCallback<UpcastElementEvent> = ( evt, data, conversionApi ) => {\n\tif ( conversionApi.consumable.test( data.viewItem, { name: true } ) ) {\n\t\tif ( data.viewItem.childCount === 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst children = [ ...data.viewItem.getChildren() ];\n\n\t\tlet foundList = false;\n\n\t\tfor ( const child of children ) {\n\t\t\tif ( foundList && !isList( child ) ) {\n\t\t\t\tchild._remove();\n\t\t\t}\n\n\t\t\tif ( isList( child ) ) {\n\t\t\t\t// If this is a <ul> or <ol>, do not process it, just mark that we already visited list element.\n\t\t\t\tfoundList = true;\n\t\t\t}\n\t\t}\n\t}\n};\n\n/**\n * Returns a callback for model position to view position mapping for {@link module:engine/conversion/mapper~Mapper}. The callback fixes\n * positions between the `listItem` elements that would be incorrectly mapped because of how list items are represented in the model\n * and in the view.\n */\nexport function modelToViewPosition( view: View ): GetCallback<MapperModelToViewPositionEvent> {\n\treturn ( evt, data ) => {\n\t\tif ( data.isPhantom ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelItem = data.modelPosition.nodeBefore;\n\n\t\tif ( modelItem && modelItem.is( 'element', 'listItem' ) ) {\n\t\t\tconst viewItem = data.mapper.toViewElement( modelItem )!;\n\t\t\tconst topmostViewList = viewItem.getAncestors().find( isList );\n\t\t\tconst walker = view.createPositionAt( viewItem, 0 ).getWalker();\n\n\t\t\tfor ( const value of walker ) {\n\t\t\t\tif ( value.type == 'elementStart' && value.item.is( 'element', 'li' ) ) {\n\t\t\t\t\tdata.viewPosition = value.previousPosition;\n\n\t\t\t\t\tbreak;\n\t\t\t\t} else if ( value.type == 'elementEnd' && value.item == topmostViewList ) {\n\t\t\t\t\tdata.viewPosition = value.nextPosition;\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\n/**\n * The callback for view position to model position mapping for {@link module:engine/conversion/mapper~Mapper}. The callback fixes\n * positions between the `<li>` elements that would be incorrectly mapped because of how list items are represented in the model\n * and in the view.\n *\n * @see module:engine/conversion/mapper~Mapper#event:viewToModelPosition\n * @param model Model instance.\n * @returns Returns a conversion callback.\n */\nexport function viewToModelPosition( model: Model ): GetCallback<MapperViewToModelPositionEvent> {\n\treturn ( evt, data ) => {\n\t\tconst viewPos = data.viewPosition;\n\t\tconst viewParent = viewPos.parent as ViewElement;\n\t\tconst mapper = data.mapper;\n\n\t\tif ( viewParent.name == 'ul' || viewParent.name == 'ol' ) {\n\t\t\t// Position is directly in <ul> or <ol>.\n\t\t\tif ( !viewPos.isAtEnd ) {\n\t\t\t\t// If position is not at the end, it must be before <li>.\n\t\t\t\t// Get that <li>, map it to `listItem` and set model position before that `listItem`.\n\t\t\t\tconst modelNode = mapper.toModelElement( viewPos.nodeAfter as any )!;\n\n\t\t\t\tdata.modelPosition = model.createPositionBefore( modelNode );\n\t\t\t} else {\n\t\t\t\t// Position is at the end of <ul> or <ol>, so there is no <li> after it to be mapped.\n\t\t\t\t// There is <li> before the position, but we cannot just map it to `listItem` and set model position after it,\n\t\t\t\t// because that <li> may contain nested items.\n\t\t\t\t// We will check \"model length\" of that <li>, in other words - how many `listItem`s are in that <li>.\n\t\t\t\tconst modelNode = mapper.toModelElement( viewPos.nodeBefore as any );\n\t\t\t\tconst modelLength = mapper.getModelLength( viewPos.nodeBefore! );\n\n\t\t\t\t// Then we get model position before mapped `listItem` and shift it accordingly.\n\t\t\t\tdata.modelPosition = model.createPositionBefore( modelNode! ).getShiftedBy( modelLength );\n\t\t\t}\n\n\t\t\tevt.stop();\n\t\t} else if (\n\t\t\tviewParent.name == 'li' &&\n\t\t\tviewPos.nodeBefore &&\n\t\t\t( ( viewPos.nodeBefore as any ).name == 'ul' || ( viewPos.nodeBefore as any ).name == 'ol' )\n\t\t) {\n\t\t\t// In most cases when view position is in <li> it is in text and this is a correct position.\n\t\t\t// However, if position is after <ul> or <ol> we have to fix it -- because in model <ul>/<ol> are not in the `listItem`.\n\t\t\tconst modelNode = mapper.toModelElement( viewParent );\n\n\t\t\t// Check all <ul>s and <ol>s that are in the <li> but before mapped position.\n\t\t\t// Get model length of those elements and then add it to the offset of `listItem` mapped to the original <li>.\n\t\t\tlet modelLength = 1; // Starts from 1 because the original <li> has to be counted in too.\n\t\t\tlet viewList: ViewNode | null = viewPos.nodeBefore;\n\n\t\t\twhile ( viewList && isList( viewList ) ) {\n\t\t\t\tmodelLength += mapper.getModelLength( viewList );\n\n\t\t\t\tviewList = viewList.previousSibling;\n\t\t\t}\n\n\t\t\tdata.modelPosition = model.createPositionBefore( modelNode! ).getShiftedBy( modelLength );\n\n\t\t\tevt.stop();\n\t\t}\n\t};\n}\n\n/**\n * Post-fixer that reacts to changes on document and fixes incorrect model states.\n *\n * In the example below, there is a correct list structure.\n * Then the middle element is removed so the list structure will become incorrect:\n *\n * ```xml\n * <listItem listType=\"bulleted\" listIndent=0>Item 1</listItem>\n * <listItem listType=\"bulleted\" listIndent=1>Item 2</listItem>   <--- this is removed.\n * <listItem listType=\"bulleted\" listIndent=2>Item 3</listItem>\n * ```\n *\n * The list structure after the middle element is removed:\n *\n * ```xml\n * <listItem listType=\"bulleted\" listIndent=0>Item 1</listItem>\n * <listItem listType=\"bulleted\" listIndent=2>Item 3</listItem>\n * ```\n *\n * Should become:\n *\n * ```xml\n * <listItem listType=\"bulleted\" listIndent=0>Item 1</listItem>\n * <listItem listType=\"bulleted\" listIndent=1>Item 3</listItem>   <--- note that indent got post-fixed.\n * ```\n *\n * @param model The data model.\n * @param writer The writer to do changes with.\n * @returns `true` if any change has been applied, `false` otherwise.\n */\nexport function modelChangePostFixer( model: Model, writer: Writer ): boolean {\n\tconst changes = model.document.differ.getChanges();\n\tconst itemToListHead = new Map<Element, Element>();\n\n\tlet applied = false;\n\n\tfor ( const entry of changes ) {\n\t\tif ( entry.type == 'insert' && entry.name == 'listItem' ) {\n\t\t\t_addListToFix( entry.position );\n\t\t} else if ( entry.type == 'insert' && entry.name != 'listItem' ) {\n\t\t\tif ( entry.name != '$text' ) {\n\t\t\t\t// In case of renamed element.\n\t\t\t\tconst item = entry.position.nodeAfter as Element;\n\n\t\t\t\tif ( item.hasAttribute( 'listIndent' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listIndent', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listType' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listType', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listStyle' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listStyle', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listReversed' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listReversed', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tif ( item.hasAttribute( 'listStart' ) ) {\n\t\t\t\t\twriter.removeAttribute( 'listStart', item );\n\n\t\t\t\t\tapplied = true;\n\t\t\t\t}\n\n\t\t\t\tfor ( const innerItem of Array.from( model.createRangeIn( item ) ).filter( e => e.item.is( 'element', 'listItem' ) ) ) {\n\t\t\t\t\t_addListToFix( innerItem.previousPosition );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tconst posAfter = entry.position.getShiftedBy( entry.length );\n\n\t\t\t_addListToFix( posAfter );\n\t\t} else if ( entry.type == 'remove' && entry.name == 'listItem' ) {\n\t\t\t_addListToFix( entry.position );\n\t\t} else if ( entry.type == 'attribute' && entry.attributeKey == 'listIndent' ) {\n\t\t\t_addListToFix( entry.range.start );\n\t\t} else if ( entry.type == 'attribute' && entry.attributeKey == 'listType' ) {\n\t\t\t_addListToFix( entry.range.start );\n\t\t}\n\t}\n\n\tfor ( const listHead of itemToListHead.values() ) {\n\t\t_fixListIndents( listHead );\n\t\t_fixListTypes( listHead );\n\t}\n\n\treturn applied;\n\n\tfunction _addListToFix( position: Position ) {\n\t\tconst previousNode = position.nodeBefore;\n\n\t\tif ( !previousNode || !previousNode.is( 'element', 'listItem' ) ) {\n\t\t\tconst item = position.nodeAfter;\n\n\t\t\tif ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\t\titemToListHead.set( item, item );\n\t\t\t}\n\t\t} else {\n\t\t\tlet listHead = previousNode;\n\n\t\t\tif ( itemToListHead.has( listHead ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tfor (\n\t\t\t\t// Cache previousSibling and reuse for performance reasons. See #6581.\n\t\t\t\tlet previousSibling = listHead.previousSibling;\n\t\t\t\tpreviousSibling && previousSibling.is( 'element', 'listItem' );\n\t\t\t\tpreviousSibling = listHead.previousSibling\n\t\t\t) {\n\t\t\t\tlistHead = previousSibling;\n\n\t\t\t\tif ( itemToListHead.has( listHead ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\titemToListHead.set( previousNode, listHead );\n\t\t}\n\t}\n\n\tfunction _fixListIndents( item: Node | null ) {\n\t\tlet maxIndent = 0;\n\t\tlet fixBy = null;\n\n\t\twhile ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\tconst itemIndent = item.getAttribute( 'listIndent' ) as number;\n\n\t\t\tif ( itemIndent > maxIndent ) {\n\t\t\t\tlet newIndent;\n\n\t\t\t\tif ( fixBy === null ) {\n\t\t\t\t\tfixBy = itemIndent - maxIndent;\n\t\t\t\t\tnewIndent = maxIndent;\n\t\t\t\t} else {\n\t\t\t\t\tif ( fixBy > itemIndent ) {\n\t\t\t\t\t\tfixBy = itemIndent;\n\t\t\t\t\t}\n\n\t\t\t\t\tnewIndent = itemIndent - fixBy;\n\t\t\t\t}\n\n\t\t\t\twriter.setAttribute( 'listIndent', newIndent, item );\n\n\t\t\t\tapplied = true;\n\t\t\t} else {\n\t\t\t\tfixBy = null;\n\t\t\t\tmaxIndent = item.getAttribute( 'listIndent' ) as number + 1;\n\t\t\t}\n\n\t\t\titem = item.nextSibling;\n\t\t}\n\t}\n\n\tfunction _fixListTypes( item: Node | null ) {\n\t\tlet typesStack: Array<string> = [];\n\t\tlet prev = null;\n\n\t\twhile ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\tconst itemIndent = item.getAttribute( 'listIndent' ) as number;\n\n\t\t\tif ( prev && prev.getAttribute( 'listIndent' ) as number > itemIndent ) {\n\t\t\t\ttypesStack = typesStack.slice( 0, itemIndent + 1 );\n\t\t\t}\n\n\t\t\tif ( itemIndent != 0 ) {\n\t\t\t\tif ( typesStack[ itemIndent ] ) {\n\t\t\t\t\tconst type = typesStack[ itemIndent ];\n\n\t\t\t\t\tif ( item.getAttribute( 'listType' ) != type ) {\n\t\t\t\t\t\twriter.setAttribute( 'listType', type, item );\n\n\t\t\t\t\t\tapplied = true;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\ttypesStack[ itemIndent ] = item.getAttribute( 'listType' ) as string;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tprev = item;\n\t\t\titem = item.nextSibling;\n\t\t}\n\t}\n}\n\n/**\n * A fixer for pasted content that includes list items.\n *\n * It fixes indentation of pasted list items so the pasted items match correctly to the context they are pasted into.\n *\n * Example:\n *\n * ```xml\n * <listItem listType=\"bulleted\" listIndent=0>A</listItem>\n * <listItem listType=\"bulleted\" listIndent=1>B^</listItem>\n * // At ^ paste:  <listItem listType=\"bulleted\" listIndent=4>X</listItem>\n * //              <listItem listType=\"bulleted\" listIndent=5>Y</listItem>\n * <listItem listType=\"bulleted\" listIndent=2>C</listItem>\n * ```\n *\n * Should become:\n *\n * ```xml\n * <listItem listType=\"bulleted\" listIndent=0>A</listItem>\n * <listItem listType=\"bulleted\" listIndent=1>BX</listItem>\n * <listItem listType=\"bulleted\" listIndent=2>Y/listItem>\n * <listItem listType=\"bulleted\" listIndent=2>C</listItem>\n * ```\n */\nexport const modelIndentPasteFixer: GetCallback<ModelInsertContentEvent> = function( evt, [ content, selectable ] ) {\n\tconst model = this as Model;\n\n\t// Check whether inserted content starts from a `listItem`. If it does not, it means that there are some other\n\t// elements before it and there is no need to fix indents, because even if we insert that content into a list,\n\t// that list will be broken.\n\t// Note: we also need to handle singular elements because inserting item with indent 0 into 0,1,[],2\n\t// would create incorrect model.\n\tlet item = content.is( 'documentFragment' ) ? content.getChild( 0 ) : content;\n\n\tlet selection;\n\n\tif ( !selectable ) {\n\t\tselection = model.document.selection;\n\t} else {\n\t\tselection = model.createSelection( selectable );\n\t}\n\n\tif ( item && item.is( 'element', 'listItem' ) ) {\n\t\t// Get a reference list item. Inserted list items will be fixed according to that item.\n\t\tconst pos = selection.getFirstPosition()!;\n\t\tlet refItem = null;\n\n\t\tif ( pos.parent.is( 'element', 'listItem' ) ) {\n\t\t\trefItem = pos.parent;\n\t\t} else if ( pos.nodeBefore && pos.nodeBefore.is( 'element', 'listItem' ) ) {\n\t\t\trefItem = pos.nodeBefore;\n\t\t}\n\n\t\t// If there is `refItem` it means that we do insert list items into an existing list.\n\t\tif ( refItem ) {\n\t\t\t// First list item in `data` has indent equal to 0 (it is a first list item). It should have indent equal\n\t\t\t// to the indent of reference item. We have to fix the first item and all of it's children and following siblings.\n\t\t\t// Indent of all those items has to be adjusted to reference item.\n\t\t\tconst indentChange = refItem.getAttribute( 'listIndent' ) as number;\n\n\t\t\t// Fix only if there is anything to fix.\n\t\t\tif ( indentChange > 0 ) {\n\t\t\t\t// Adjust indent of all \"first\" list items in inserted data.\n\t\t\t\twhile ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\t\t\titem._setAttribute( 'listIndent', item.getAttribute( 'listIndent' ) as number + indentChange );\n\n\t\t\t\t\titem = item.nextSibling;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n};\n\n/**\n * Helper function that converts children of a given `<li>` view element into corresponding model elements.\n * The function maintains proper order of elements if model `listItem` is split during the conversion\n * due to block children conversion.\n *\n * @param listItemModel List item model element to which converted children will be inserted.\n * @param viewChildren View elements which will be converted.\n * @param conversionApi Conversion interface to be used by the callback.\n * @returns Position on which next elements should be inserted after children conversion.\n */\nfunction viewToModelListItemChildrenConverter(\n\tlistItemModel: Element,\n\tviewChildren: Iterable<ViewNode>,\n\tconversionApi: UpcastConversionApi\n) {\n\tconst { writer, schema } = conversionApi;\n\n\t// A position after the last inserted `listItem`.\n\tlet nextPosition = writer.createPositionAfter( listItemModel );\n\n\t// Check all children of the converted `<li>`. At this point we assume there are no \"whitespace\" view text nodes\n\t// in view list, between view list items. This should be handled by `<ul>` and `<ol>` converters.\n\tfor ( const child of viewChildren ) {\n\t\tif ( ( child as any ).name == 'ul' || ( child as any ).name == 'ol' ) {\n\t\t\t// If the children is a list, we will insert its conversion result after currently handled `listItem`.\n\t\t\t// Then, next insertion position will be set after all the new list items (and maybe other elements if\n\t\t\t// something split list item).\n\t\t\t//\n\t\t\t// If this is a list, we expect that some `listItem`s and possibly other blocks will be inserted, however `.modelCursor`\n\t\t\t// should be set after last `listItem` (or block). This is why it feels safe to use it as `nextPosition`\n\t\t\tnextPosition = conversionApi.convertItem( child, nextPosition ).modelCursor;\n\t\t} else {\n\t\t\t// If this is not a list, try inserting content at the end of the currently handled `listItem`.\n\t\t\tconst result = conversionApi.convertItem( child, writer.createPositionAt( listItemModel, 'end' ) );\n\n\t\t\t// It may end up that the current `listItem` becomes split (if that content cannot be inside `listItem`). For example:\n\t\t\t//\n\t\t\t// <li><p>Foo</p></li>\n\t\t\t//\n\t\t\t// will be converted to:\n\t\t\t//\n\t\t\t// <listItem></listItem><paragraph>Foo</paragraph><listItem></listItem>\n\t\t\t//\n\t\t\tconst convertedChild = result.modelRange!.start.nodeAfter;\n\t\t\tconst wasSplit = convertedChild && convertedChild.is( 'element' ) && !schema.checkChild( listItemModel, convertedChild.name );\n\n\t\t\tif ( wasSplit ) {\n\t\t\t\t// As `lastListItem` got split, we need to update it to the second part of the split `listItem` element.\n\t\t\t\t//\n\t\t\t\t// `modelCursor` should be set to a position where the conversion should continue. There are multiple possible scenarios\n\t\t\t\t// that may happen. Usually, `modelCursor` (marked as `#` below) would point to the second list item after conversion:\n\t\t\t\t//\n\t\t\t\t//\t\t`<li><p>Foo</p></li>` -> `<listItem></listItem><paragraph>Foo</paragraph><listItem>#</listItem>`\n\t\t\t\t//\n\t\t\t\t// However, in some cases, like auto-paragraphing, the position is placed at the end of the block element:\n\t\t\t\t//\n\t\t\t\t//\t\t`<li><div>Foo</div></li>` -> `<listItem></listItem><paragraph>Foo#</paragraph><listItem></listItem>`\n\t\t\t\t//\n\t\t\t\t// or after an element if another element broken auto-paragraphed element:\n\t\t\t\t//\n\t\t\t\t//\t\t`<li><div><h2>Foo</h2></div></li>` -> `<listItem></listItem><heading1>Foo</heading1>#<listItem></listItem>`\n\t\t\t\t//\n\t\t\t\t// We need to check for such cases and use proper list item and position based on it.\n\t\t\t\t//\n\t\t\t\tif ( result.modelCursor.parent.is( 'element', 'listItem' ) ) {\n\t\t\t\t\t// (1).\n\t\t\t\t\tlistItemModel = result.modelCursor.parent;\n\t\t\t\t} else {\n\t\t\t\t\t// (2), (3).\n\t\t\t\t\tlistItemModel = findNextListItem( result.modelCursor );\n\t\t\t\t}\n\n\t\t\t\tnextPosition = writer.createPositionAfter( listItemModel );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn nextPosition;\n}\n\n/**\n * Helper function that seeks for a next list item starting from given `startPosition`.\n */\nfunction findNextListItem( startPosition: Position ) {\n\tconst treeWalker = new TreeWalker( { startPosition } );\n\n\tlet value;\n\n\tdo {\n\t\tvalue = treeWalker.next();\n\t} while ( !value.value.item.is( 'element', 'listItem' ) );\n\n\treturn value.value.item;\n}\n\n/**\n * Helper function that takes all children of given `viewRemovedItem` and moves them in a correct place, according\n * to other given parameters.\n */\nfunction hoistNestedLists(\n\tnextIndent: number,\n\tmodelRemoveStartPosition: Position,\n\tviewRemoveStartPosition: ViewPosition,\n\tviewRemovedItem: ViewElement,\n\tconversionApi: DowncastConversionApi,\n\tmodel: Model\n) {\n\t// Find correct previous model list item element.\n\t// The element has to have either same or smaller indent than given reference indent.\n\t// This will be the model element which will get nested items (if it has smaller indent) or sibling items (if it has same indent).\n\t// Keep in mind that such element might not be found, if removed item was the first item.\n\tconst prevModelItem = getSiblingListItem( modelRemoveStartPosition.nodeBefore, {\n\t\tsameIndent: true,\n\t\tsmallerIndent: true,\n\t\tlistIndent: nextIndent\n\t} );\n\n\tconst mapper = conversionApi.mapper;\n\tconst viewWriter = conversionApi.writer;\n\n\t// Indent of found element or `null` if the element has not been found.\n\tconst prevIndent = prevModelItem ? prevModelItem.getAttribute( 'listIndent' ) : null;\n\n\tlet insertPosition;\n\n\tif ( !prevModelItem ) {\n\t\t// If element has not been found, simply insert lists at the position where the removed item was:\n\t\t//\n\t\t// Lorem ipsum.\n\t\t// 1 --------           <--- this is removed, no previous list item, put nested items in place of removed item.\n\t\t//   1.1 --------       <--- this is reference indent.\n\t\t//     1.1.1 --------\n\t\t//     1.1.2 --------\n\t\t//   1.2 --------\n\t\t//\n\t\t// Becomes:\n\t\t//\n\t\t// Lorem ipsum.\n\t\t// 1.1 --------\n\t\t//   1.1.1 --------\n\t\t//   1.1.2 --------\n\t\t// 1.2 --------\n\t\tinsertPosition = viewRemoveStartPosition;\n\t} else if ( prevIndent == nextIndent ) {\n\t\t// If element has been found and has same indent as reference indent it means that nested items should\n\t\t// become siblings of found element:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//   1.2 --------       <--- this is `prevModelItem`.\n\t\t// 2 --------           <--- this is removed, previous list item has indent same as reference indent.\n\t\t//   2.1 --------       <--- this is reference indent, this and 2.2 should become siblings of 1.2.\n\t\t//   2.2 --------\n\t\t//\n\t\t// Becomes:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1 --------\n\t\t//   1.2 --------\n\t\t//   2.1 --------\n\t\t//   2.2 --------\n\t\tconst prevViewList = mapper.toViewElement( prevModelItem )!.parent as ViewElement;\n\t\tinsertPosition = viewWriter.createPositionAfter( prevViewList );\n\t} else {\n\t\t// If element has been found and has smaller indent as reference indent it means that nested items\n\t\t// should become nested items of found item:\n\t\t//\n\t\t// 1 --------           <--- this is `prevModelItem`.\n\t\t//   1.1 --------       <--- this is removed, previous list item has indent smaller than reference indent.\n\t\t//     1.1.1 --------   <--- this is reference indent, this and 1.1.1 should become nested items of 1.\n\t\t//     1.1.2 --------\n\t\t//   1.2 --------\n\t\t//\n\t\t// Becomes:\n\t\t//\n\t\t// 1 --------\n\t\t//   1.1.1 --------\n\t\t//   1.1.2 --------\n\t\t//   1.2 --------\n\t\t//\n\t\t// Note: in this case 1.1.1 have indent 2 while 1 have indent 0. In model that should not be possible,\n\t\t// because following item may have indent bigger only by one. But this is fixed by postfixer.\n\t\tconst modelPosition = model.createPositionAt( prevModelItem, 'end' );\n\t\tinsertPosition = mapper.toViewPosition( modelPosition );\n\t}\n\n\tinsertPosition = positionAfterUiElements( insertPosition );\n\n\t// Handle multiple lists. This happens if list item has nested numbered and bulleted lists. Following lists\n\t// are inserted after the first list (no need to recalculate insertion position for them).\n\tfor ( const child of [ ...viewRemovedItem.getChildren() ] ) {\n\t\tif ( isList( child ) ) {\n\t\t\tinsertPosition = viewWriter.move( viewWriter.createRangeOn( child ), insertPosition ).end;\n\n\t\t\tmergeViewLists( viewWriter, child, child.nextSibling! );\n\t\t\tmergeViewLists( viewWriter, child.previousSibling!, child );\n\t\t}\n\t}\n}\n\n/**\n * Checks if view element is a list type (ul or ol).\n */\nfunction isList( viewElement: ViewTypeCheckable ): viewElement is ViewElement & { name: 'ol' | 'ul' } {\n\treturn viewElement.is( 'element', 'ol' ) || viewElement.is( 'element', 'ul' );\n}\n\n/**\n * Calculates the indent value for a list item. Handles HTML compliant and non-compliant lists.\n *\n * Also, fixes non HTML compliant lists indents:\n *\n * ```\n * before:                                     fixed list:\n * OL                                          OL\n * |-> LI (parent LIs: 0)                      |-> LI     (indent: 0)\n *     |-> OL                                  |-> OL\n *         |-> OL                                  |\n *         |   |-> OL                              |\n *         |       |-> OL                          |\n *         |           |-> LI (parent LIs: 1)      |-> LI (indent: 1)\n *         |-> LI (parent LIs: 1)                  |-> LI (indent: 1)\n *\n * before:                                     fixed list:\n * OL                                          OL\n * |-> OL                                      |\n *     |-> OL                                  |\n *          |-> OL                             |\n *              |-> LI (parent LIs: 0)         |-> LI        (indent: 0)\n *\n * before:                                     fixed list:\n * OL                                          OL\n * |-> LI (parent LIs: 0)                      |-> LI         (indent: 0)\n * |-> OL                                          |-> OL\n *     |-> LI (parent LIs: 0)                          |-> LI (indent: 1)\n * ```\n */\nfunction getIndent( listItem: ViewElement ) {\n\tlet indent = 0;\n\n\tlet parent = listItem.parent as ViewElement;\n\n\twhile ( parent ) {\n\t\t// Each LI in the tree will result in an increased indent for HTML compliant lists.\n\t\tif ( parent.is( 'element', 'li' ) ) {\n\t\t\tindent++;\n\t\t} else {\n\t\t\t// If however the list is nested in other list we should check previous sibling of any of the list elements...\n\t\t\tconst previousSibling = parent.previousSibling;\n\n\t\t\t// ...because the we might need increase its indent:\n\t\t\t//\t\tbefore:                           fixed list:\n\t\t\t//\t\tOL                                OL\n\t\t\t//\t\t|-> LI (parent LIs: 0)            |-> LI         (indent: 0)\n\t\t\t//\t\t|-> OL                                |-> OL\n\t\t\t//\t\t    |-> LI (parent LIs: 0)                |-> LI (indent: 1)\n\t\t\tif ( previousSibling && previousSibling.is( 'element', 'li' ) ) {\n\t\t\t\tindent++;\n\t\t\t}\n\t\t}\n\n\t\tparent = parent.parent as ViewElement;\n\t}\n\n\treturn indent;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./list.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listediting\n */\n\nimport ListCommand from './listcommand';\nimport IndentCommand from './indentcommand';\nimport ListUtils from './listutils';\n\nimport { Plugin, type MultiCommand } from 'ckeditor5/src/core';\n\nimport { Enter, type ViewDocumentEnterEvent } from 'ckeditor5/src/enter';\nimport { Delete, type ViewDocumentDeleteEvent } from 'ckeditor5/src/typing';\n\nimport type {\n\tDowncastAttributeEvent,\n\tDowncastInsertEvent,\n\tDowncastRemoveEvent,\n\tElement,\n\tMapperModelToViewPositionEvent,\n\tMapperViewToModelPositionEvent,\n\tModelInsertContentEvent,\n\tUpcastElementEvent,\n\tViewDocumentTabEvent,\n\tViewElement\n} from 'ckeditor5/src/engine';\n\nimport {\n\tcleanList,\n\tcleanListItem,\n\tmodelViewInsertion,\n\tmodelViewChangeType,\n\tmodelViewMergeAfterChangeType,\n\tmodelViewMergeAfter,\n\tmodelViewRemove,\n\tmodelViewSplitOnInsert,\n\tmodelViewChangeIndent,\n\tmodelChangePostFixer,\n\tmodelIndentPasteFixer,\n\tviewModelConverter,\n\tmodelToViewPosition,\n\tviewToModelPosition\n} from './converters';\n\nimport '../../theme/list.css';\n\n/**\n * The engine of the list feature. It handles creating, editing and removing lists and list items.\n *\n * It registers the `'numberedList'`, `'bulletedList'`, `'indentList'` and `'outdentList'` commands.\n */\nexport default class ListEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ListEditing' {\n\t\treturn 'ListEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ Enter, Delete, ListUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Schema.\n\t\t// Note: in case `$block` will ever be allowed in `listItem`, keep in mind that this feature\n\t\t// uses `Selection#getSelectedBlocks()` without any additional processing to obtain all selected list items.\n\t\t// If there are blocks allowed inside list item, algorithms using `getSelectedBlocks()` will have to be modified.\n\t\teditor.model.schema.register( 'listItem', {\n\t\t\tinheritAllFrom: '$block',\n\t\t\tallowAttributes: [ 'listType', 'listIndent' ]\n\t\t} );\n\n\t\t// Converters.\n\t\tconst data = editor.data;\n\t\tconst editing = editor.editing;\n\n\t\teditor.model.document.registerPostFixer( writer => modelChangePostFixer( editor.model, writer ) );\n\n\t\tediting.mapper.registerViewToModelLength( 'li', getViewListItemLength );\n\t\tdata.mapper.registerViewToModelLength( 'li', getViewListItemLength );\n\n\t\tediting.mapper.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', modelToViewPosition( editing.view ) );\n\t\tediting.mapper.on<MapperViewToModelPositionEvent>( 'viewToModelPosition', viewToModelPosition( editor.model ) );\n\t\tdata.mapper.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', modelToViewPosition( editing.view ) );\n\n\t\teditor.conversion.for( 'editingDowncast' )\n\t\t\t.add( dispatcher => {\n\t\t\t\tdispatcher.on<DowncastInsertEvent<Element>>( 'insert', modelViewSplitOnInsert, { priority: 'high' } );\n\t\t\t\tdispatcher.on<DowncastInsertEvent<Element>>( 'insert:listItem', modelViewInsertion( editor.model ) );\n\t\t\t\tdispatcher.on<DowncastAttributeEvent<Element>>( 'attribute:listType:listItem', modelViewChangeType, { priority: 'high' } );\n\t\t\t\tdispatcher.on<DowncastAttributeEvent<Element>>(\n\t\t\t\t\t'attribute:listType:listItem', modelViewMergeAfterChangeType, { priority: 'low' } );\n\t\t\t\tdispatcher.on<DowncastAttributeEvent<Element>>( 'attribute:listIndent:listItem', modelViewChangeIndent( editor.model ) );\n\t\t\t\tdispatcher.on<DowncastRemoveEvent>( 'remove:listItem', modelViewRemove( editor.model ) );\n\t\t\t\tdispatcher.on<DowncastRemoveEvent>( 'remove', modelViewMergeAfter, { priority: 'low' } );\n\t\t\t} );\n\n\t\teditor.conversion.for( 'dataDowncast' )\n\t\t\t.add( dispatcher => {\n\t\t\t\tdispatcher.on<DowncastInsertEvent<Element>>( 'insert', modelViewSplitOnInsert, { priority: 'high' } );\n\t\t\t\tdispatcher.on<DowncastInsertEvent<Element>>( 'insert:listItem', modelViewInsertion( editor.model ) );\n\t\t\t} );\n\n\t\teditor.conversion.for( 'upcast' )\n\t\t\t.add( dispatcher => {\n\t\t\t\tdispatcher.on<UpcastElementEvent>( 'element:ul', cleanList, { priority: 'high' } );\n\t\t\t\tdispatcher.on<UpcastElementEvent>( 'element:ol', cleanList, { priority: 'high' } );\n\t\t\t\tdispatcher.on<UpcastElementEvent>( 'element:li', cleanListItem, { priority: 'high' } );\n\t\t\t\tdispatcher.on<UpcastElementEvent>( 'element:li', viewModelConverter );\n\t\t\t} );\n\n\t\t// Fix indentation of pasted items.\n\t\teditor.model.on<ModelInsertContentEvent>( 'insertContent', modelIndentPasteFixer, { priority: 'high' } );\n\n\t\t// Register commands for numbered and bulleted list.\n\t\teditor.commands.add( 'numberedList', new ListCommand( editor, 'numbered' ) );\n\t\teditor.commands.add( 'bulletedList', new ListCommand( editor, 'bulleted' ) );\n\n\t\t// Register commands for indenting.\n\t\teditor.commands.add( 'indentList', new IndentCommand( editor, 'forward' ) );\n\t\teditor.commands.add( 'outdentList', new IndentCommand( editor, 'backward' ) );\n\n\t\tconst viewDocument = editing.view.document;\n\n\t\t// Overwrite default Enter key behavior.\n\t\t// If Enter key is pressed with selection collapsed in empty list item, outdent it instead of breaking it.\n\t\tthis.listenTo<ViewDocumentEnterEvent>( viewDocument, 'enter', ( evt, data ) => {\n\t\t\tconst doc = this.editor.model.document;\n\t\t\tconst positionParent = doc.selection.getLastPosition()!.parent;\n\n\t\t\tif ( doc.selection.isCollapsed && positionParent.name == 'listItem' && positionParent.isEmpty ) {\n\t\t\t\tthis.editor.execute( 'outdentList' );\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'li' } );\n\n\t\t// Overwrite default Backspace key behavior.\n\t\t// If Backspace key is pressed with selection collapsed on first position in first list item, outdent it. #83\n\t\tthis.listenTo<ViewDocumentDeleteEvent>( viewDocument, 'delete', ( evt, data ) => {\n\t\t\t// Check conditions from those that require less computations like those immediately available.\n\t\t\tif ( data.direction !== 'backward' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst selection = this.editor.model.document.selection;\n\n\t\t\tif ( !selection.isCollapsed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst firstPosition = selection.getFirstPosition()!;\n\n\t\t\tif ( !firstPosition.isAtStart ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst positionParent = firstPosition.parent;\n\n\t\t\tif ( positionParent.name !== 'listItem' ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst previousIsAListItem = positionParent.previousSibling && ( positionParent.previousSibling as any ).name === 'listItem';\n\n\t\t\tif ( previousIsAListItem ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.execute( 'outdentList' );\n\n\t\t\tdata.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: 'li' } );\n\n\t\tthis.listenTo<ViewDocumentTabEvent>( editor.editing.view.document, 'tab', ( evt, data ) => {\n\t\t\tconst commandName = data.shiftKey ? 'outdentList' : 'indentList';\n\t\t\tconst command = this.editor.commands.get( commandName )!;\n\n\t\t\tif ( command.isEnabled ) {\n\t\t\t\teditor.execute( commandName );\n\n\t\t\t\tdata.stopPropagation();\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { context: 'li' } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst commands = this.editor.commands;\n\n\t\tconst indent = commands.get( 'indent' ) as MultiCommand;\n\t\tconst outdent = commands.get( 'outdent' ) as MultiCommand;\n\n\t\tif ( indent ) {\n\t\t\tindent.registerChildCommand( commands.get( 'indentList' )! );\n\t\t}\n\n\t\tif ( outdent ) {\n\t\t\toutdent.registerChildCommand( commands.get( 'outdentList' )! );\n\t\t}\n\t}\n}\n\nfunction getViewListItemLength( element: ViewElement ) {\n\tlet length = 1;\n\n\tfor ( const child of element.getChildren() as Iterable<ViewElement> ) {\n\t\tif ( child.name == 'ul' || child.name == 'ol' ) {\n\t\t\tfor ( const item of child.getChildren() ) {\n\t\t\t\tlength += getViewListItemLength( item as ViewElement );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn length;\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM3.5 3v5H2V3.7H1v-1h2.5V3zM.343 17.857l2.59-3.257H2.92a.6.6 0 1 0-1.04 0H.302a2 2 0 1 1 3.995 0h-.001c-.048.405-.16.734-.333.988-.175.254-.59.692-1.244 1.312H4.3v1h-4l.043-.043zM7 14.75a.75.75 0 0 1 .75-.75h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M7 5.75c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0C1 4.784 1.777 4 2.75 4c.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75C1.784 7.5 1 6.723 1 5.75zm6 9c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zm-6 0c0-.966.777-1.75 1.75-1.75.966 0 1.75.777 1.75 1.75 0 .966-.777 1.75-1.75 1.75-.966 0-1.75-.777-1.75-1.75z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list/listui\n */\n\nimport { createUIComponent } from './utils';\n\nimport numberedListIcon from '../../theme/icons/numberedlist.svg';\nimport bulletedListIcon from '../../theme/icons/bulletedlist.svg';\n\nimport { Plugin } from 'ckeditor5/src/core';\n\n/**\n * The list UI feature. It introduces the `'numberedList'` and `'bulletedList'` buttons that\n * allow to convert paragraphs to and from list items and indent or outdent them.\n */\nexport default class ListUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ListUI' {\n\t\treturn 'ListUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst t = this.editor.t;\n\n\t\t// Create two buttons and link them with numberedList and bulletedList commands.\n\t\tcreateUIComponent( this.editor, 'numberedList', t( 'Numbered List' ), numberedListIcon );\n\t\tcreateUIComponent( this.editor, 'bulletedList', t( 'Bulleted List' ), bulletedListIcon );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/liststylecommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport { getListTypeFromListStyleType, getSelectedListItems } from '../list/utils';\n\n/**\n * The list style command. It changes the `listStyle` attribute of the selected list items.\n *\n * If the list type (numbered or bulleted) can be inferred from the passed style type,\n * the command tries to convert selected items to a list of that type.\n * It is used by the {@link module:list/listproperties~ListProperties list properties feature}.\n */\nexport default class ListStyleCommand extends Command {\n\tdeclare public isStyleTypeSupported: undefined;\n\n\t/**\n\t * @inheritDoc\n\t * @readonly\n\t */\n\tdeclare public value: string | null;\n\n\t/**\n\t * The default type of the list style.\n\t */\n\tpublic readonly defaultType: string;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param editor The editor instance.\n\t * @param defaultType The list type that will be used by default if the value was not specified during\n\t * the command execution.\n\t */\n\tconstructor( editor: Editor, defaultType: string ) {\n\t\tsuper( editor );\n\n\t\tthis.defaultType = defaultType;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options.type The type of the list style, e.g. `'disc'` or `'square'`. If `null` is specified, the default\n\t * style will be applied.\n\t */\n\tpublic override execute( options: { type?: string | null } = {} ): void {\n\t\tthis._tryToConvertItemsToList( options );\n\n\t\tconst model = this.editor.model;\n\t\tconst listItems = getSelectedListItems( model );\n\n\t\tif ( !listItems.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of listItems ) {\n\t\t\t\twriter.setAttribute( 'listStyle', options.type || this.defaultType, item );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @returns The current value.\n\t */\n\tprivate _getValue() {\n\t\tconst listItem = this.editor.model.document.selection.getFirstPosition()!.parent;\n\n\t\tif ( listItem && listItem.is( 'element', 'listItem' ) ) {\n\t\t\treturn listItem.getAttribute( 'listStyle' ) as string;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @returns Whether the command should be enabled.\n\t */\n\tprivate _checkEnabled() {\n\t\tconst editor = this.editor;\n\n\t\tconst numberedList = editor.commands.get( 'numberedList' )!;\n\t\tconst bulletedList = editor.commands.get( 'bulletedList' )!;\n\n\t\treturn numberedList.isEnabled || bulletedList.isEnabled;\n\t}\n\n\t/**\n\t * Checks if the provided list style is valid. Also changes the selection to a list if it's not set yet.\n\t *\n\t * @param The type of the list style. If `null` is specified, the function does nothing.\n\t*/\n\tprivate _tryToConvertItemsToList( options: { type?: string | null } ) {\n\t\tif ( !options.type ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst listType = getListTypeFromListStyleType( options.type );\n\n\t\tif ( !listType ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst commandName = `${ listType }List` as const;\n\t\tconst command = editor.commands.get( commandName )!;\n\n\t\tif ( !command.value ) {\n\t\t\teditor.execute( commandName );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/listreversedcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { getSelectedListItems } from '../list/utils';\n\n/**\n * The reversed list command. It changes the `listReversed` attribute of the selected list items. As a result, the list order will be\n * reversed.\n * It is used by the {@link module:list/listproperties~ListProperties list properties feature}.\n */\nexport default class ListReversedCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public value: boolean | null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst value = this._getValue();\n\t\tthis.value = value;\n\t\tthis.isEnabled = value != null;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options.reversed Whether the list should be reversed.\n\t */\n\tpublic override execute( options: { reversed?: boolean } = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst listItems = getSelectedListItems( model )\n\t\t\t.filter( item => item.getAttribute( 'listType' ) == 'numbered' );\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of listItems ) {\n\t\t\t\twriter.setAttribute( 'listReversed', !!options.reversed, item );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @returns The current value.\n\t */\n\tprivate _getValue() {\n\t\tconst listItem = this.editor.model.document.selection.getFirstPosition()!.parent;\n\n\t\tif ( listItem && listItem.is( 'element', 'listItem' ) && listItem.getAttribute( 'listType' ) == 'numbered' ) {\n\t\t\treturn listItem.getAttribute( 'listReversed' ) as boolean;\n\t\t}\n\n\t\treturn null;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/liststartcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport { getSelectedListItems } from '../list/utils';\n\n/**\n * The list start index command. It changes the `listStart` attribute of the selected list items.\n * It is used by the {@link module:list/listproperties~ListProperties list properties feature}.\n */\nexport default class ListStartCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public value: number | null;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst value = this._getValue();\n\t\tthis.value = value;\n\t\tthis.isEnabled = value != null;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options.startIndex The list start index.\n\t */\n\tpublic override execute( { startIndex = 1 }: { startIndex?: number } = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst listItems = getSelectedListItems( model )\n\t\t\t.filter( item => item.getAttribute( 'listType' ) == 'numbered' );\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of listItems ) {\n\t\t\t\twriter.setAttribute( 'listStart', startIndex >= 0 ? startIndex : 1, item );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @returns The current value.\n\t */\n\tprivate _getValue() {\n\t\tconst listItem = this.editor.model.document.selection.getFirstPosition()!.parent;\n\n\t\tif ( listItem && listItem.is( 'element', 'listItem' ) && listItem.getAttribute( 'listType' ) == 'numbered' ) {\n\t\t\treturn listItem.getAttribute( 'listStart' ) as number;\n\t\t}\n\n\t\treturn null;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/listpropertiesediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\n\nimport type {\n\tDiffItem,\n\tDowncastAttributeEvent,\n\tDowncastDispatcher,\n\tDowncastWriter,\n\tElement,\n\tModelDeleteContentEvent,\n\tNode,\n\tUpcastDispatcher,\n\tUpcastElementEvent,\n\tViewElement,\n\tWriter\n} from 'ckeditor5/src/engine';\n\nimport ListEditing from '../list/listediting';\nimport ListStyleCommand from './liststylecommand';\nimport ListReversedCommand from './listreversedcommand';\nimport ListStartCommand from './liststartcommand';\nimport { getSiblingListItem, getSiblingNodes } from '../list/utils';\nimport type { ListPropertiesConfig } from '../listconfig';\n\nconst DEFAULT_LIST_TYPE = 'default';\n\n/**\n * The engine of the list properties feature.\n *\n * It sets the value for the `listItem` attribute of the {@link module:list/list~List `<listItem>`} element that\n * allows modifying the list style type.\n *\n * It registers the `'listStyle'`, `'listReversed'` and `'listStart'` commands if they are enabled in the configuration.\n * Read more in {@link module:list/listconfig~ListPropertiesConfig}.\n */\nexport default class ListPropertiesEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ListEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ListPropertiesEditing' {\n\t\treturn 'ListPropertiesEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'list', {\n\t\t\tproperties: {\n\t\t\t\tstyles: true,\n\t\t\t\tstartIndex: false,\n\t\t\t\treversed: false\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tconst enabledProperties = editor.config.get( 'list.properties' )!;\n\t\tconst strategies = createAttributeStrategies( enabledProperties );\n\n\t\t// Extend schema.\n\t\tmodel.schema.extend( 'listItem', {\n\t\t\tallowAttributes: strategies.map( s => s.attributeName )\n\t\t} );\n\n\t\tfor ( const strategy of strategies ) {\n\t\t\tstrategy.addCommand( editor );\n\t\t}\n\n\t\t// Fix list attributes when modifying their nesting levels (the `listIndent` attribute).\n\t\tthis.listenTo( editor.commands.get( 'indentList' )!, '_executeCleanup', fixListAfterIndentListCommand( editor, strategies ) );\n\t\tthis.listenTo( editor.commands.get( 'outdentList' )!, '_executeCleanup', fixListAfterOutdentListCommand( editor, strategies ) );\n\n\t\tthis.listenTo( editor.commands.get( 'bulletedList' )!, '_executeCleanup', restoreDefaultListStyle( editor ) );\n\t\tthis.listenTo( editor.commands.get( 'numberedList' )!, '_executeCleanup', restoreDefaultListStyle( editor ) );\n\n\t\t// Register a post-fixer that ensures that the attributes is specified in each `listItem` element.\n\t\tmodel.document.registerPostFixer( fixListAttributesOnListItemElements( editor, strategies ) );\n\n\t\t// Set up conversion.\n\t\teditor.conversion.for( 'upcast' ).add( upcastListItemAttributes( strategies ) );\n\t\teditor.conversion.for( 'downcast' ).add( downcastListItemAttributes( strategies ) );\n\n\t\t// Handle merging two separated lists into the single one.\n\t\tthis._mergeListAttributesWhileMergingLists( strategies );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Enable post-fixer that removes the attributes from to-do list items only if the \"TodoList\" plugin is on.\n\t\t// We need to registry the hook here since the `TodoList` plugin can be added after the `ListPropertiesEditing`.\n\t\tif ( editor.commands.get( 'todoList' ) ) {\n\t\t\teditor.model.document.registerPostFixer( removeListItemAttributesFromTodoList( editor ) );\n\t\t}\n\t}\n\n\t/**\n\t * Starts listening to {@link module:engine/model/model~Model#deleteContent} and checks whether two lists will be merged into a single\n\t * one after deleting the content.\n\t *\n\t * The purpose of this action is to adjust the `listStyle`, `listReversed` and `listStart` values\n\t * for the list that was merged.\n\t *\n\t * Consider the following model's content:\n\t *\n\t * ```xml\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t * <paragraph>[A paragraph.]</paragraph>\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">UL List item 1</listItem>\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">UL List item 2</listItem>\n\t * ```\n\t *\n\t * After removing the paragraph element, the second list will be merged into the first one.\n\t * We want to inherit the `listStyle` attribute for the second list from the first one.\n\t *\n\t * ```xml\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t * <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t * ```\n\t *\n\t * See https://github.com/ckeditor/ckeditor5/issues/7879.\n\t *\n\t * @param attributeStrategies Strategies for the enabled attributes.\n\t */\n\tprivate _mergeListAttributesWhileMergingLists( attributeStrategies: Array<AttributeStrategy> ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\t// First the outer-most`listItem` in the first list reference.\n\t\t// If found, the lists should be merged and this `listItem` provides the attributes\n\t\t// and it is also a starting point when searching for items in the second list.\n\t\tlet firstMostOuterItem: Element | null;\n\n\t\t// Check whether the removed content is between two lists.\n\t\tthis.listenTo<ModelDeleteContentEvent>( model, 'deleteContent', ( evt, [ selection ] ) => {\n\t\t\tconst firstPosition = selection.getFirstPosition()!;\n\t\t\tconst lastPosition = selection.getLastPosition()!;\n\n\t\t\t// Typing or removing content in a single item. Aborting.\n\t\t\tif ( firstPosition.parent === lastPosition.parent ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// An element before the content that will be removed is not a list.\n\t\t\tif ( !firstPosition.parent.is( 'element', 'listItem' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst nextSibling = lastPosition.parent.nextSibling;\n\n\t\t\t// An element after the content that will be removed is not a list.\n\t\t\tif ( !nextSibling || !nextSibling.is( 'element', 'listItem' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Find the outermost list item based on the `listIndent` attribute. We can't assume that `listIndent=0`\n\t\t\t// because the selection can be hooked in nested lists.\n\t\t\t//\n\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t\t\t// <listItem listIndent=\"1\" listType=\"bulleted\" listStyle=\"square\">UL List [item 1.1</listItem>\n\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">[]UL List item 1.</listItem>\n\t\t\t// <listItem listIndent=\"1\" listType=\"bulleted\" listStyle=\"circle\">UL List ]item 1.1</listItem>\n\t\t\t//\n\t\t\t// After deleting the content, we would like to inherit the \"square\" attribute for the last element:\n\t\t\t//\n\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t\t\t// <listItem listIndent=\"1\" listType=\"bulleted\" listStyle=\"square\">UL List []item 1.1</listItem>\n\t\t\tconst mostOuterItemList = getSiblingListItem( firstPosition.parent, {\n\t\t\t\tsameIndent: true,\n\t\t\t\tlistIndent: nextSibling.getAttribute( 'listIndent' ) as number\n\t\t\t} );\n\n\t\t\t// The outermost list item may not exist while removing elements between lists with different value\n\t\t\t// of the `listIndent` attribute. In such a case we don't want to update anything. See: #8073.\n\t\t\tif ( !mostOuterItemList ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( mostOuterItemList.getAttribute( 'listType' ) === nextSibling.getAttribute( 'listType' ) ) {\n\t\t\t\tfirstMostOuterItem = mostOuterItemList;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// If so, update the `listStyle` attribute for the second list.\n\t\tthis.listenTo<ModelDeleteContentEvent>( model, 'deleteContent', () => {\n\t\t\tif ( !firstMostOuterItem ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\t// Find the first most-outer item list in the merged list.\n\t\t\t\t// A case when the first list item in the second list was merged into the last item in the first list.\n\t\t\t\t//\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 1</listItem>\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"square\">UL List item 2</listItem>\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">[]UL List item 1</listItem>\n\t\t\t\t// <listItem listIndent=\"0\" listType=\"bulleted\" listStyle=\"circle\">UL List item 2</listItem>\n\t\t\t\tconst secondListMostOuterItem = getSiblingListItem( firstMostOuterItem!.nextSibling, {\n\t\t\t\t\tsameIndent: true,\n\t\t\t\t\tlistIndent: firstMostOuterItem!.getAttribute( 'listIndent' ) as number,\n\t\t\t\t\tdirection: 'forward'\n\t\t\t\t} );\n\n\t\t\t\t// If the selection ends in a non-list element, there are no <listItem>s that would require adjustments.\n\t\t\t\t// See: #8642.\n\t\t\t\tif ( !secondListMostOuterItem ) {\n\t\t\t\t\tfirstMostOuterItem = null;\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst items = [\n\t\t\t\t\tsecondListMostOuterItem,\n\t\t\t\t\t...getSiblingNodes( writer.createPositionAt( secondListMostOuterItem, 0 ), 'forward' )\n\t\t\t\t];\n\n\t\t\t\tfor ( const listItem of items ) {\n\t\t\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\t\t\tif ( strategy.appliesToListItem( listItem ) ) {\n\t\t\t\t\t\t\tconst attributeName = strategy.attributeName;\n\t\t\t\t\t\t\tconst value = firstMostOuterItem!.getAttribute( attributeName );\n\n\t\t\t\t\t\t\twriter.setAttribute( attributeName, value, listItem );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tfirstMostOuterItem = null;\n\t\t}, { priority: 'low' } );\n\t}\n}\n\n/**\n * Strategy for dealing with `listItem` attributes supported by this plugin.\n */\ninterface AttributeStrategy {\n\tattributeName: string;\n\tdefaultValue: unknown;\n\taddCommand: ( editor: Editor ) => void;\n\tappliesToListItem: ( element: Node ) => boolean;\n\tsetAttributeOnDowncast: ( writer: DowncastWriter, value: any, element: ViewElement ) => void;\n\tgetAttributeOnUpcast: ( element: ViewElement ) => unknown;\n}\n\n/**\n * Creates an array of strategies for dealing with enabled listItem attributes.\n */\nfunction createAttributeStrategies( enabledProperties: ListPropertiesConfig ) {\n\tconst strategies: Array<AttributeStrategy> = [];\n\n\tif ( enabledProperties.styles ) {\n\t\tstrategies.push( {\n\t\t\tattributeName: 'listStyle',\n\t\t\tdefaultValue: DEFAULT_LIST_TYPE,\n\n\t\t\taddCommand( editor ) {\n\t\t\t\teditor.commands.add( 'listStyle', new ListStyleCommand( editor, DEFAULT_LIST_TYPE ) );\n\t\t\t},\n\n\t\t\tappliesToListItem() {\n\t\t\t\treturn true;\n\t\t\t},\n\n\t\t\tsetAttributeOnDowncast( writer, listStyle, element ) {\n\t\t\t\tif ( listStyle && listStyle !== DEFAULT_LIST_TYPE ) {\n\t\t\t\t\twriter.setStyle( 'list-style-type', listStyle, element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeStyle( 'list-style-type', element );\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tgetAttributeOnUpcast( listParent ) {\n\t\t\t\treturn listParent.getStyle( 'list-style-type' ) || DEFAULT_LIST_TYPE;\n\t\t\t}\n\t\t} );\n\t}\n\n\tif ( enabledProperties.reversed ) {\n\t\tstrategies.push( {\n\t\t\tattributeName: 'listReversed',\n\t\t\tdefaultValue: false,\n\n\t\t\taddCommand( editor ) {\n\t\t\t\teditor.commands.add( 'listReversed', new ListReversedCommand( editor ) );\n\t\t\t},\n\n\t\t\tappliesToListItem( item ) {\n\t\t\t\treturn item.getAttribute( 'listType' ) == 'numbered';\n\t\t\t},\n\n\t\t\tsetAttributeOnDowncast( writer, listReversed, element ) {\n\t\t\t\tif ( listReversed ) {\n\t\t\t\t\twriter.setAttribute( 'reversed', 'reversed', element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( 'reversed', element );\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tgetAttributeOnUpcast( listParent ) {\n\t\t\t\treturn listParent.hasAttribute( 'reversed' );\n\t\t\t}\n\t\t} );\n\t}\n\n\tif ( enabledProperties.startIndex ) {\n\t\tstrategies.push( {\n\t\t\tattributeName: 'listStart',\n\t\t\tdefaultValue: 1,\n\n\t\t\taddCommand( editor ) {\n\t\t\t\teditor.commands.add( 'listStart', new ListStartCommand( editor ) );\n\t\t\t},\n\n\t\t\tappliesToListItem( item ) {\n\t\t\t\treturn item.getAttribute( 'listType' ) == 'numbered';\n\t\t\t},\n\n\t\t\tsetAttributeOnDowncast( writer, listStart, element ) {\n\t\t\t\tif ( listStart == 0 || listStart > 1 ) {\n\t\t\t\t\twriter.setAttribute( 'start', listStart, element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( 'start', element );\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tgetAttributeOnUpcast( listParent ) {\n\t\t\t\tconst startAttributeValue: any = listParent.getAttribute( 'start' );\n\n\t\t\t\treturn startAttributeValue >= 0 ? startAttributeValue : 1;\n\t\t\t}\n\t\t} );\n\t}\n\n\treturn strategies;\n}\n\n/**\n * Returns a converter consumes the `style`, `reversed` and `start` attribute.\n * In `style` it searches for the `list-style-type` definition.\n * If not found, the `\"default\"` value will be used.\n */\nfunction upcastListItemAttributes( attributeStrategies: Array<AttributeStrategy> ) {\n\treturn ( dispatcher: UpcastDispatcher ) => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element:li', ( evt, data, conversionApi ) => {\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/13858\n\t\t\tif ( !data.modelRange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst listParent = data.viewItem.parent as ViewElement;\n\t\t\tconst listItem = data.modelRange.start.nodeAfter || data.modelRange.end.nodeBefore;\n\n\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\tif ( strategy.appliesToListItem( listItem! ) ) {\n\t\t\t\t\tconst listStyle = strategy.getAttributeOnUpcast( listParent );\n\t\t\t\t\tconversionApi.writer.setAttribute( strategy.attributeName, listStyle, listItem! );\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t};\n}\n\n/**\n * Returns a converter that adds `reversed`, `start` attributes and adds `list-style-type` definition as a value for the `style` attribute.\n * The `\"default\"` values are removed and not present in the view/data.\n */\nfunction downcastListItemAttributes( attributeStrategies: Array<AttributeStrategy> ) {\n\treturn ( dispatcher: DowncastDispatcher ) => {\n\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\tdispatcher.on<DowncastAttributeEvent>( `attribute:${ strategy.attributeName }:listItem`, ( evt, data, conversionApi ) => {\n\t\t\t\tconst viewWriter = conversionApi.writer;\n\t\t\t\tconst currentElement = data.item as Element;\n\n\t\t\t\tconst previousElement = getSiblingListItem( currentElement.previousSibling, {\n\t\t\t\t\tsameIndent: true,\n\t\t\t\t\tlistIndent: currentElement.getAttribute( 'listIndent' ) as number,\n\t\t\t\t\tdirection: 'backward'\n\t\t\t\t} );\n\n\t\t\t\tconst viewItem = conversionApi.mapper.toViewElement( currentElement )!;\n\n\t\t\t\t// A case when elements represent different lists. We need to separate their container.\n\t\t\t\tif ( !areRepresentingSameList( currentElement, previousElement ) ) {\n\t\t\t\t\tviewWriter.breakContainer( viewWriter.createPositionBefore( viewItem ) );\n\t\t\t\t}\n\t\t\t\tstrategy.setAttributeOnDowncast( viewWriter, data.attributeNewValue, viewItem.parent as ViewElement );\n\t\t\t}, { priority: 'low' } );\n\t\t}\n\t};\n\n\t/**\n\t * Checks whether specified list items belong to the same list.\n\t */\n\tfunction areRepresentingSameList( listItem1: Element, listItem2: Element | null ) {\n\t\treturn listItem2 &&\n\t\t\tlistItem1.getAttribute( 'listType' ) === listItem2.getAttribute( 'listType' ) &&\n\t\t\tlistItem1.getAttribute( 'listIndent' ) === listItem2.getAttribute( 'listIndent' ) &&\n\t\t\tlistItem1.getAttribute( 'listStyle' ) === listItem2.getAttribute( 'listStyle' ) &&\n\t\t\tlistItem1.getAttribute( 'listReversed' ) === listItem2.getAttribute( 'listReversed' ) &&\n\t\t\tlistItem1.getAttribute( 'listStart' ) === listItem2.getAttribute( 'listStart' );\n\t}\n}\n\n/**\n * When indenting list, nested list should clear its value for the attributes or inherit from nested lists.\n *\n * ■ List item 1.\n * ■ List item 2.[]\n * ■ List item 3.\n * editor.execute( 'indentList' );\n *\n * ■ List item 1.\n *     ○ List item 2.[]\n * ■ List item 3.\n */\nfunction fixListAfterIndentListCommand( editor: Editor, attributeStrategies: Array<AttributeStrategy> ) {\n\treturn ( evt: unknown, changedItems: Array<Element> ) => {\n\t\tconst root = changedItems[ 0 ];\n\t\tconst rootIndent = root.getAttribute( 'listIndent' ) as number;\n\n\t\tconst itemsToUpdate = changedItems.filter( item => item.getAttribute( 'listIndent' ) === rootIndent );\n\n\t\t// A case where a few list items are indented must be checked separately\n\t\t// since `getSiblingListItem()` returns the first changed element.\n\t\t// ■ List item 1.\n\t\t//     ○ [List item 2.\n\t\t//     ○ List item 3.]\n\t\t// ■ List item 4.\n\t\t//\n\t\t// List items: `2` and `3` should be adjusted.\n\t\tlet previousSibling: Element | null = null;\n\n\t\tif ( root.previousSibling!.getAttribute( 'listIndent' ) as number + 1 !== rootIndent ) {\n\t\t\tpreviousSibling = getSiblingListItem( root.previousSibling, {\n\t\t\t\tsameIndent: true, direction: 'backward', listIndent: rootIndent\n\t\t\t} );\n\t\t}\n\n\t\teditor.model.change( writer => {\n\t\t\tfor ( const item of itemsToUpdate ) {\n\t\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\t\tif ( strategy.appliesToListItem( item ) ) {\n\t\t\t\t\t\tconst valueToSet = previousSibling == null ?\n\t\t\t\t\t\t\tstrategy.defaultValue :\n\t\t\t\t\t\t\tpreviousSibling.getAttribute( strategy.attributeName );\n\n\t\t\t\t\t\twriter.setAttribute( strategy.attributeName, valueToSet, item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t};\n}\n\n/**\n * When outdenting a list, a nested list should copy attribute values\n * from the previous sibling list item including the same value for the `listIndent` value.\n *\n * ■ List item 1.\n *     ○ List item 2.[]\n * ■ List item 3.\n *\n * editor.execute( 'outdentList' );\n *\n * ■ List item 1.\n * ■ List item 2.[]\n * ■ List item 3.\n */\nfunction fixListAfterOutdentListCommand( editor: Editor, attributeStrategies: Array<AttributeStrategy> ) {\n\treturn ( evt: unknown, changedItems: Array<Element> ) => {\n\t\tchangedItems = changedItems.reverse().filter( item => item.is( 'element', 'listItem' ) );\n\n\t\tif ( !changedItems.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst indent = changedItems[ 0 ].getAttribute( 'listIndent' );\n\t\tconst listType = changedItems[ 0 ].getAttribute( 'listType' );\n\t\tlet listItem: Node | null = changedItems[ 0 ].previousSibling!;\n\n\t\t// ■ List item 1.\n\t\t//     ○ List item 2.\n\t\t//     ○ List item 3.[]\n\t\t// ■ List item 4.\n\t\t//\n\t\t// After outdenting a list, `List item 3` should inherit the `listStyle` attribute from `List item 1`.\n\t\t//\n\t\t// ■ List item 1.\n\t\t//     ○ List item 2.\n\t\t// ■ List item 3.[]\n\t\t// ■ List item 4.\n\t\tif ( listItem.is( 'element', 'listItem' ) ) {\n\t\t\twhile ( listItem!.getAttribute( 'listIndent' ) !== indent ) {\n\t\t\t\tlistItem = listItem!.previousSibling;\n\t\t\t}\n\t\t} else {\n\t\t\tlistItem = null;\n\t\t}\n\n\t\t// Outdenting such a list should restore values based on `List item 4`.\n\t\t// ■ List item 1.[]\n\t\t//     ○ List item 2.\n\t\t//     ○ List item 3.\n\t\t// ■ List item 4.\n\t\tif ( !listItem ) {\n\t\t\tlistItem = changedItems[ changedItems.length - 1 ].nextSibling;\n\t\t}\n\n\t\t// And such a list should not modify anything.\n\t\t// However, `listItem` can indicate a node below the list. Be sure that we have the `listItem` element.\n\t\t// ■ List item 1.[]\n\t\t//     ○ List item 2.\n\t\t//     ○ List item 3.\n\t\t// <paragraph>The later if check.</paragraph>\n\t\tif ( !listItem || !listItem.is( 'element', 'listItem' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Do not modify the list if found `listItem` represents other type of list than outdented list items.\n\t\tif ( listItem.getAttribute( 'listType' ) !== listType ) {\n\t\t\treturn;\n\t\t}\n\n\t\teditor.model.change( writer => {\n\t\t\tconst itemsToUpdate = changedItems.filter( item => item.getAttribute( 'listIndent' ) === indent );\n\n\t\t\tfor ( const item of itemsToUpdate ) {\n\t\t\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\t\t\tif ( strategy.appliesToListItem( item ) ) {\n\t\t\t\t\t\tconst attributeName = strategy.attributeName;\n\t\t\t\t\t\tconst valueToSet = listItem!.getAttribute( attributeName );\n\n\t\t\t\t\t\twriter.setAttribute( attributeName, valueToSet, item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t};\n}\n\n/**\n * Each `listItem` element must have specified the `listStyle`, `listReversed` and `listStart` attributes\n * if they are enabled and supported by its `listType`.\n * This post-fixer checks whether inserted elements `listItem` elements should inherit the attribute values from\n * their sibling nodes or should use the default values.\n *\n * Paragraph[]\n * ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n * ■ List item 2. // ...\n * ■ List item 3. // ...\n *\n * editor.execute( 'bulletedList' )\n *\n * ■ Paragraph[]  // [listStyle=\"square\", listType=\"bulleted\"]\n * ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n * ■ List item 2.\n * ■ List item 3.\n *\n * It also covers a such change:\n *\n * [Paragraph 1\n * Paragraph 2]\n * ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n * ■ List item 2. // ...\n * ■ List item 3. // ...\n *\n * editor.execute( 'numberedList' )\n *\n * 1. [Paragraph 1 // [listStyle=\"default\", listType=\"numbered\"]\n * 2. Paragraph 2] // [listStyle=\"default\", listType=\"numbered\"]\n * ■ List item 1.  // [listStyle=\"square\", listType=\"bulleted\"]\n * ■ List item 2.  // ...\n * ■ List item 3.  // ...\n */\nfunction fixListAttributesOnListItemElements( editor: Editor, attributeStrategies: Array<AttributeStrategy> ) {\n\treturn ( writer: Writer ) => {\n\t\tlet wasFixed = false;\n\n\t\tconst insertedListItems = getChangedListItems( editor.model.document.differ.getChanges() )\n\t\t\t.filter( item => {\n\t\t\t\t// Don't touch todo lists. They are handled in another post-fixer.\n\t\t\t\treturn item.getAttribute( 'listType' ) !== 'todo';\n\t\t\t} );\n\n\t\tif ( !insertedListItems.length ) {\n\t\t\treturn wasFixed;\n\t\t}\n\n\t\t// Check whether the last inserted element is next to the `listItem` element.\n\t\t//\n\t\t// ■ Paragraph[]  // <-- The inserted item.\n\t\t// ■ List item 1.\n\t\tlet existingListItem = insertedListItems[ insertedListItems.length - 1 ].nextSibling;\n\n\t\t// If it doesn't, maybe the `listItem` was inserted at the end of the list.\n\t\t//\n\t\t// ■ List item 1.\n\t\t// ■ Paragraph[]  // <-- The inserted item.\n\t\tif ( !existingListItem || !existingListItem.is( 'element', 'listItem' ) ) {\n\t\t\texistingListItem = insertedListItems[ 0 ].previousSibling;\n\n\t\t\tif ( existingListItem ) {\n\t\t\t\tconst indent = insertedListItems[ 0 ].getAttribute( 'listIndent' );\n\n\t\t\t\t// But we need to find a `listItem` with the `listIndent=0` attribute.\n\t\t\t\t// If doesn't, maybe the `listItem` was inserted at the end of the list.\n\t\t\t\t//\n\t\t\t\t// ■ List item 1.\n\t\t\t\t//     ○ List item 2.\n\t\t\t\t// ■ Paragraph[]  // <-- The inserted item.\n\t\t\t\twhile ( existingListItem.is( 'element', 'listItem' ) && existingListItem.getAttribute( 'listIndent' ) !== indent ) {\n\t\t\t\t\texistingListItem = existingListItem.previousSibling;\n\n\t\t\t\t\t// If the item does not exist, most probably there is no other content in the editor. See: #8072.\n\t\t\t\t\tif ( !existingListItem ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tfor ( const strategy of attributeStrategies ) {\n\t\t\tconst attributeName = strategy.attributeName;\n\n\t\t\tfor ( const item of insertedListItems ) {\n\t\t\t\tif ( !strategy.appliesToListItem( item ) ) {\n\t\t\t\t\twriter.removeAttribute( attributeName, item );\n\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tif ( !item.hasAttribute( attributeName ) ) {\n\t\t\t\t\tif ( shouldInheritListType( existingListItem, item, strategy ) ) {\n\t\t\t\t\t\twriter.setAttribute( attributeName, existingListItem!.getAttribute( attributeName ), item );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.setAttribute( attributeName, strategy.defaultValue, item );\n\t\t\t\t\t}\n\t\t\t\t\twasFixed = true;\n\t\t\t\t} else {\n\t\t\t\t\t// Adjust the `listStyle`, `listReversed` and `listStart`\n\t\t\t\t\t// attributes for inserted (pasted) items. See #8160.\n\t\t\t\t\t//\n\t\t\t\t\t// ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ List item 1.1. // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ [] (selection is here)\n\t\t\t\t\t//\n\t\t\t\t\t// Then, pasting a list with different attributes (listStyle, listType):\n\t\t\t\t\t//\n\t\t\t\t\t// 1. First. // [listStyle=\"decimal\", listType=\"numbered\"]\n\t\t\t\t\t// 2. Second // [listStyle=\"decimal\", listType=\"numbered\"]\n\t\t\t\t\t//\n\t\t\t\t\t// The `listType` attribute will be corrected by the `ListEditing` converters.\n\t\t\t\t\t// We need to adjust the `listStyle` attribute. Expected structure:\n\t\t\t\t\t//\n\t\t\t\t\t// ■ List item 1. // [listStyle=\"square\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ List item 1.1. // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ First. // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\t//     ○ Second // [listStyle=\"circle\", listType=\"bulleted\"]\n\t\t\t\t\tconst previousSibling = item.previousSibling;\n\n\t\t\t\t\tif ( shouldInheritListTypeFromPreviousItem( previousSibling, item, strategy.attributeName ) ) {\n\t\t\t\t\t\twriter.setAttribute( attributeName, previousSibling!.getAttribute( attributeName ), item );\n\n\t\t\t\t\t\twasFixed = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn wasFixed;\n\t};\n}\n\n/**\n * Checks whether the `listStyle`, `listReversed` and `listStart` attributes\n * should be copied from the `baseItem` element.\n *\n * The attribute should be copied if the inserted element does not have defined it and\n * the value for the element is other than default in the base element.\n */\nfunction shouldInheritListType( baseItem: Node | null, itemToChange: Element, attributeStrategy: AttributeStrategy ) {\n\tif ( !baseItem ) {\n\t\treturn false;\n\t}\n\n\tconst baseListAttribute = baseItem.getAttribute( attributeStrategy.attributeName );\n\n\tif ( !baseListAttribute ) {\n\t\treturn false;\n\t}\n\n\tif ( baseListAttribute == attributeStrategy.defaultValue ) {\n\t\treturn false;\n\t}\n\n\tif ( baseItem.getAttribute( 'listType' ) !== itemToChange.getAttribute( 'listType' ) ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n/**\n * Checks whether the `listStyle`, `listReversed` and `listStart` attributes\n * should be copied from previous list item.\n *\n * The attribute should be copied if there's a mismatch of styles of the pasted list into a nested list.\n * Top-level lists are not normalized as we allow side-by-side list of different types.\n */\nfunction shouldInheritListTypeFromPreviousItem( previousItem: Node | null, itemToChange: Element, attributeName: string ) {\n\tif ( !previousItem || !previousItem.is( 'element', 'listItem' ) ) {\n\t\treturn false;\n\t}\n\n\tif ( itemToChange.getAttribute( 'listType' ) !== previousItem.getAttribute( 'listType' ) ) {\n\t\treturn false;\n\t}\n\n\tconst previousItemIndent = previousItem.getAttribute( 'listIndent' ) as number;\n\n\tif ( previousItemIndent < 1 || previousItemIndent !== itemToChange.getAttribute( 'listIndent' ) ) {\n\t\treturn false;\n\t}\n\n\tconst previousItemListAttribute = previousItem.getAttribute( attributeName );\n\n\tif ( !previousItemListAttribute || previousItemListAttribute === itemToChange.getAttribute( attributeName ) ) {\n\t\treturn false;\n\t}\n\n\treturn true;\n}\n\n/**\n * Removes the `listStyle`, `listReversed` and `listStart` attributes from \"todo\" list items.\n */\nfunction removeListItemAttributesFromTodoList( editor: Editor ) {\n\treturn ( writer: Writer ) => {\n\t\tconst todoListItems = getChangedListItems( editor.model.document.differ.getChanges() )\n\t\t\t.filter( item => {\n\t\t\t\t// Handle the todo lists only. The rest is handled in another post-fixer.\n\t\t\t\treturn item.getAttribute( 'listType' ) === 'todo' && (\n\t\t\t\t\titem.hasAttribute( 'listStyle' ) ||\n\t\t\t\t\titem.hasAttribute( 'listReversed' ) ||\n\t\t\t\t\titem.hasAttribute( 'listStart' )\n\t\t\t\t);\n\t\t\t} );\n\n\t\tif ( !todoListItems.length ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tfor ( const item of todoListItems ) {\n\t\t\twriter.removeAttribute( 'listStyle', item );\n\t\t\twriter.removeAttribute( 'listReversed', item );\n\t\t\twriter.removeAttribute( 'listStart', item );\n\t\t}\n\n\t\treturn true;\n\t};\n}\n\n/**\n * Restores the `listStyle` attribute after changing the list type.\n */\nfunction restoreDefaultListStyle( editor: Editor ) {\n\treturn ( evt: unknown, changedItems: Array<Element> ) => {\n\t\tchangedItems = changedItems.filter( item => item.is( 'element', 'listItem' ) );\n\n\t\teditor.model.change( writer => {\n\t\t\tfor ( const item of changedItems ) {\n\t\t\t\t// Remove the attribute. Post-fixer will restore the proper value.\n\t\t\t\twriter.removeAttribute( 'listStyle', item );\n\t\t\t}\n\t\t} );\n\t};\n}\n\n/**\n * Returns the `listItem` that was inserted or changed.\n *\n * @param changes The changes list returned by the differ.\n */\nfunction getChangedListItems( changes: Array<DiffItem> ) {\n\tconst items: Array<Element> = [];\n\n\tfor ( const change of changes ) {\n\t\tconst item = getItemFromChange( change );\n\n\t\tif ( item && item.is( 'element', 'listItem' ) ) {\n\t\t\titems.push( item );\n\t\t}\n\t}\n\n\treturn items;\n}\n\nfunction getItemFromChange( change: DiffItem ) {\n\tif ( change.type === 'attribute' ) {\n\t\treturn change.range.start.nodeAfter;\n\t}\n\n\tif ( change.type === 'insert' ) {\n\t\treturn change.position.nodeAfter;\n\t}\n\n\treturn null;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./collapsible.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/ui/collapsibleview\n */\n\nimport type { Locale } from 'ckeditor5/src/utils';\n\nimport { View, ButtonView, type ViewCollection } from 'ckeditor5/src/ui';\n\n// eslint-disable-next-line ckeditor5-rules/ckeditor-imports\nimport dropdownArrowIcon from '@ckeditor/ckeditor5-ui/theme/icons/dropdown-arrow.svg';\n\nimport '../../../theme/collapsible.css';\n\n/**\n * A collapsible UI component. Consists of a labeled button and a container which can be collapsed\n * by clicking the button. The collapsible container can be a host to other UI views.\n *\n * @internal\n */\nexport default class CollapsibleView extends View {\n\t/**\n\t * `true` when the container with {@link #children} is collapsed. `false` otherwise.\n\t *\n\t * @observable\n\t */\n\tdeclare public isCollapsed: boolean;\n\n\t/**\n\t * The text label of the {@link #buttonView}.\n\t *\n\t * @observable\n\t * @default 'Show more'\n\t */\n\tdeclare public label: string;\n\n\t/**\n\t * The ID of the label inside the {@link #buttonView} that describes the collapsible\n\t * container for assistive technologies. Set after the button was {@link #render rendered}.\n\t *\n\t * @internal\n\t * @readonly\n\t * @observable\n\t */\n\tdeclare public _collapsibleAriaLabelUid: string | undefined;\n\n\t/**\n\t * The main button that, when clicked, collapses or expands the container with {@link #children}.\n\t */\n\tpublic readonly buttonView: ButtonView;\n\n\t/**\n\t * A collection of the child views that can be collapsed by clicking the {@link #buttonView}.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * Creates an instance of the collapsible view.\n\t *\n\t * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param childViews An optional array of initial child views to be inserted into the collapsible.\n\t */\n\tconstructor( locale: Locale, childViews?: Array<View> ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'isCollapsed', false );\n\t\tthis.set( 'label', '' );\n\n\t\tthis.buttonView = this._createButtonView();\n\t\tthis.children = this.createCollection();\n\n\t\tthis.set( '_collapsibleAriaLabelUid', undefined );\n\n\t\tif ( childViews ) {\n\t\t\tthis.children.addMany( childViews );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-collapsible',\n\t\t\t\t\tbind.if( 'isCollapsed', 'ck-collapsible_collapsed' )\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis.buttonView,\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-collapsible__children'\n\t\t\t\t\t\t],\n\t\t\t\t\t\trole: 'region',\n\t\t\t\t\t\thidden: bind.if( 'isCollapsed', 'hidden' ),\n\t\t\t\t\t\t'aria-labelledby': bind.to( '_collapsibleAriaLabelUid' )\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.children\n\t\t\t\t}\n\t\t\t]\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis._collapsibleAriaLabelUid = this.buttonView.labelView.element!.id;\n\t}\n\n\t/**\n\t * Creates the main {@link #buttonView} of the collapsible.\n\t */\n\tprivate _createButtonView() {\n\t\tconst buttonView = new ButtonView( this.locale );\n\t\tconst bind = buttonView.bindTemplate;\n\n\t\tbuttonView.set( {\n\t\t\twithText: true,\n\t\t\ticon: dropdownArrowIcon\n\t\t} );\n\n\t\tbuttonView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\t'aria-expanded': bind.to( 'isOn', value => String( value ) )\n\t\t\t}\n\t\t} );\n\n\t\tbuttonView.bind( 'label' ).to( this );\n\t\tbuttonView.bind( 'isOn' ).to( this, 'isCollapsed', isCollapsed => !isCollapsed );\n\n\t\tbuttonView.on( 'execute', () => {\n\t\t\tthis.isCollapsed = !this.isCollapsed;\n\t\t} );\n\n\t\treturn buttonView;\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./listproperties.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/ui/listpropertiesview\n */\n\nimport {\n\tView,\n\tViewCollection,\n\tFocusCycler,\n\tSwitchButtonView,\n\tLabeledFieldView,\n\tcreateLabeledInputNumber,\n\taddKeyboardHandlingForGrid,\n\ttype ButtonView,\n\ttype InputNumberView\n} from 'ckeditor5/src/ui';\n\nimport {\n\tFocusTracker,\n\tKeystrokeHandler,\n\tglobal,\n\ttype Locale\n} from 'ckeditor5/src/utils';\n\nimport CollapsibleView from './collapsibleview';\n\nimport type { ListPropertiesConfig } from '../../listconfig';\n\nimport '../../../theme/listproperties.css';\n\n/**\n * The list properties view to be displayed in the list dropdown.\n *\n * Contains a grid of available list styles and, for numbered list, also the list start index and reversed fields.\n *\n * @internal\n */\nexport default class ListPropertiesView extends View {\n\t/**\n\t * @inheritDoc\n\t */\n\tdeclare public locale: Locale;\n\n\t/**\n\t * A collection of the child views.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * A view that renders the grid of list styles.\n\t */\n\tpublic readonly stylesView: StylesView | null = null;\n\n\t/**\n\t * A collapsible view that hosts additional list property fields ({@link #startIndexFieldView} and\n\t * {@link #reversedSwitchButtonView}) to visually separate them from the {@link #stylesView grid of styles}.\n\t *\n\t * **Note**: Only present when:\n\t * * the view represents **numbered** list properties,\n\t * * and the {@link #stylesView} is rendered,\n\t * * and either {@link #startIndexFieldView} or {@link #reversedSwitchButtonView} is rendered.\n\t *\n\t * @readonly\n\t */\n\tpublic additionalPropertiesCollapsibleView: CollapsibleView | null = null;\n\n\t/**\n\t * A labeled number field allowing the user to set the start index of the list.\n\t *\n\t * **Note**: Only present when the view represents **numbered** list properties.\n\t *\n\t * @readonly\n\t */\n\tpublic startIndexFieldView: LabeledFieldView<InputNumberView> | null = null;\n\n\t/**\n\t * A switch button allowing the user to make the edited list reversed.\n\t *\n\t * **Note**: Only present when the view represents **numbered** list properties.\n\t *\n\t * @readonly\n\t */\n\tpublic reversedSwitchButtonView: SwitchButtonView | null = null;\n\n\t/**\n\t * Tracks information about the DOM focus in the view.\n\t */\n\tpublic readonly focusTracker: FocusTracker = new FocusTracker();\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler = new KeystrokeHandler();\n\n\t/**\n\t * A collection of views that can be focused in the properties view.\n\t */\n\tpublic readonly focusables: ViewCollection = new ViewCollection();\n\n\t/**\n\t * Helps cycling over {@link #focusables} in the view.\n\t */\n\tpublic readonly focusCycler: FocusCycler;\n\n\t/**\n\t * Creates an instance of the list properties view.\n\t *\n\t * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param options Options of the view.\n\t * @param options.enabledProperties An object containing the configuration of enabled list property names.\n\t * Allows conditional rendering the sub-components of the properties view.\n\t * @param options.styleButtonViews A list of style buttons to be rendered\n\t * inside the styles grid. The grid will not be rendered when `enabledProperties` does not include the `'styles'` key.\n\t * @param options.styleGridAriaLabel An assistive technologies label set on the grid of styles (if the grid is rendered).\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\t{ enabledProperties, styleButtonViews, styleGridAriaLabel }: {\n\t\t\tenabledProperties: ListPropertiesConfig;\n\t\t\tstyleButtonViews: Array<ButtonView> | null;\n\t\t\tstyleGridAriaLabel: string;\n\t\t}\n\t) {\n\t\tsuper( locale );\n\n\t\tconst elementCssClasses = [\n\t\t\t'ck',\n\t\t\t'ck-list-properties'\n\t\t];\n\n\t\tthis.children = this.createCollection();\n\n\t\tthis.focusCycler = new FocusCycler( {\n\t\t\tfocusables: this.focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate #children backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate #children forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\t// The rendering of the styles grid is conditional. When there is no styles grid, the view will render without collapsible\n\t\t// for numbered list properties, hence simplifying the layout.\n\t\tif ( enabledProperties.styles ) {\n\t\t\tthis.stylesView = this._createStylesView( styleButtonViews!, styleGridAriaLabel );\n\t\t\tthis.children.add( this.stylesView );\n\t\t} else {\n\t\t\telementCssClasses.push( 'ck-list-properties_without-styles' );\n\t\t}\n\n\t\t// The rendering of the numbered list property views is also conditional. It only makes sense for the numbered list\n\t\t// dropdown. The unordered list does not have such properties.\n\t\tif ( enabledProperties.startIndex || enabledProperties.reversed ) {\n\t\t\tthis._addNumberedListPropertyViews( enabledProperties );\n\n\t\t\telementCssClasses.push( 'ck-list-properties_with-numbered-properties' );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: elementCssClasses\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tif ( this.stylesView ) {\n\t\t\tthis.focusables.add( this.stylesView );\n\t\t\tthis.focusTracker.add( this.stylesView.element! );\n\n\t\t\t// Register the collapsible toggle button to the focus system.\n\t\t\tif ( this.startIndexFieldView || this.reversedSwitchButtonView ) {\n\t\t\t\tthis.focusables.add( ( this.children.last as any ).buttonView );\n\t\t\t\tthis.focusTracker.add( ( this.children.last as any ).buttonView.element );\n\t\t\t}\n\n\t\t\tfor ( const item of this.stylesView.children ) {\n\t\t\t\tthis.stylesView.focusTracker.add( item.element! );\n\t\t\t}\n\n\t\t\taddKeyboardHandlingForGrid( {\n\t\t\t\tkeystrokeHandler: this.stylesView.keystrokes,\n\t\t\t\tfocusTracker: this.stylesView.focusTracker,\n\t\t\t\tgridItems: this.stylesView.children,\n\t\t\t\t// Note: The styles view has a different number of columns depending on whether the other properties\n\t\t\t\t// are enabled in the dropdown or not (https://github.com/ckeditor/ckeditor5/issues/12340)\n\t\t\t\tnumberOfColumns: () => global.window\n\t\t\t\t\t.getComputedStyle( this.stylesView!.element! )\n\t\t\t\t\t.getPropertyValue( 'grid-template-columns' )\n\t\t\t\t\t.split( ' ' )\n\t\t\t\t\t.length,\n\t\t\t\tuiLanguageDirection: this.locale && this.locale.uiLanguageDirection\n\t\t\t} );\n\t\t}\n\n\t\tif ( this.startIndexFieldView ) {\n\t\t\tthis.focusables.add( this.startIndexFieldView );\n\t\t\tthis.focusTracker.add( this.startIndexFieldView.element! );\n\n\t\t\t// Intercept the `selectstart` event, which is blocked by default because of the default behavior\n\t\t\t// of the DropdownView#panelView.\n\t\t\t// TODO: blocking `selectstart` in the #panelView should be configurable per–drop–down instance.\n\t\t\tthis.listenTo( this.startIndexFieldView.element!, 'selectstart', ( evt, domEvt ) => {\n\t\t\t\tdomEvt.stopPropagation();\n\t\t\t}, { priority: 'high' } );\n\n\t\t\tconst stopPropagation = ( data: Event ) => data.stopPropagation();\n\n\t\t\t// Since the form is in the dropdown panel which is a child of the toolbar, the toolbar's\n\t\t\t// keystroke handler would take over the key management in the input. We need to prevent\n\t\t\t// this ASAP. Otherwise, the basic caret movement using the arrow keys will be impossible.\n\t\t\tthis.keystrokes.set( 'arrowright', stopPropagation );\n\t\t\tthis.keystrokes.set( 'arrowleft', stopPropagation );\n\t\t\tthis.keystrokes.set( 'arrowup', stopPropagation );\n\t\t\tthis.keystrokes.set( 'arrowdown', stopPropagation );\n\t\t}\n\n\t\tif ( this.reversedSwitchButtonView ) {\n\t\t\tthis.focusables.add( this.reversedSwitchButtonView );\n\t\t\tthis.focusTracker.add( this.reversedSwitchButtonView.element! );\n\t\t}\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic focus(): void {\n\t\tthis.focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic focusLast(): void {\n\t\tthis.focusCycler.focusLast();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Creates the list styles grid.\n\t *\n\t * @param styleButtons Buttons to be placed in the grid.\n\t * @param styleGridAriaLabel The assistive technology label of the grid.\n\t */\n\tprivate _createStylesView( styleButtons: Array<ButtonView>, styleGridAriaLabel: string ) {\n\t\tconst stylesView = new View( this.locale ) as StylesView;\n\n\t\tstylesView.children = stylesView.createCollection();\n\t\tstylesView.children.addMany( styleButtons );\n\n\t\tstylesView.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\t'aria-label': styleGridAriaLabel,\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-list-styles-list'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: stylesView.children\n\t\t} );\n\n\t\tstylesView.children.delegate( 'execute' ).to( this );\n\n\t\tstylesView.focus = function( this: any ) {\n\t\t\tthis.children.first.focus();\n\t\t};\n\n\t\tstylesView.focusTracker = new FocusTracker();\n\t\tstylesView.keystrokes = new KeystrokeHandler();\n\n\t\tstylesView.render();\n\n\t\tstylesView.keystrokes.listenTo( stylesView.element! );\n\n\t\treturn stylesView;\n\t}\n\n\t/**\n\t * Renders {@link #startIndexFieldView} and/or {@link #reversedSwitchButtonView} depending on the configuration of the properties view.\n\t *\n\t * @param enabledProperties An object containing the configuration of enabled list property names\n\t * (see {@link #constructor}).\n\t */\n\tprivate _addNumberedListPropertyViews( enabledProperties: ListPropertiesConfig ) {\n\t\tconst t = this.locale.t;\n\t\tconst numberedPropertyViews = [];\n\n\t\tif ( enabledProperties.startIndex ) {\n\t\t\tthis.startIndexFieldView = this._createStartIndexField();\n\t\t\tnumberedPropertyViews.push( this.startIndexFieldView );\n\t\t}\n\n\t\tif ( enabledProperties.reversed ) {\n\t\t\tthis.reversedSwitchButtonView = this._createReversedSwitchButton();\n\t\t\tnumberedPropertyViews.push( this.reversedSwitchButtonView );\n\t\t}\n\n\t\t// When there are some style buttons, pack the numbered list properties into a collapsible to separate them.\n\t\tif ( enabledProperties.styles ) {\n\t\t\tthis.additionalPropertiesCollapsibleView = new CollapsibleView( this.locale, numberedPropertyViews );\n\n\t\t\tthis.additionalPropertiesCollapsibleView.set( {\n\t\t\t\tlabel: t( 'List properties' ),\n\t\t\t\tisCollapsed: true\n\t\t\t} );\n\n\t\t\t// Don't enable the collapsible view unless either start index or reversed field is enabled (e.g. when no list is selected).\n\t\t\tthis.additionalPropertiesCollapsibleView.buttonView.bind( 'isEnabled' ).toMany(\n\t\t\t\tnumberedPropertyViews, 'isEnabled', ( ...areEnabled ) => areEnabled.some( isEnabled => isEnabled ) );\n\n\t\t\t// Automatically collapse the additional properties collapsible when either start index or reversed field gets disabled.\n\t\t\tthis.additionalPropertiesCollapsibleView.buttonView.on( 'change:isEnabled', ( evt, data, isEnabled ) => {\n\t\t\t\tif ( !isEnabled ) {\n\t\t\t\t\tthis.additionalPropertiesCollapsibleView!.isCollapsed = true;\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tthis.children.add( this.additionalPropertiesCollapsibleView );\n\t\t} else {\n\t\t\tthis.children.addMany( numberedPropertyViews );\n\t\t}\n\t}\n\n\t/**\n\t * Creates the list start index labeled field.\n\t */\n\tprivate _createStartIndexField() {\n\t\tconst t = this.locale.t;\n\t\tconst startIndexFieldView = new LabeledFieldView( this.locale, createLabeledInputNumber );\n\n\t\tstartIndexFieldView.set( {\n\t\t\tlabel: t( 'Start at' ),\n\t\t\tclass: 'ck-numbered-list-properties__start-index'\n\t\t} );\n\n\t\tstartIndexFieldView.fieldView.set( {\n\t\t\tmin: 0,\n\t\t\tstep: 1,\n\t\t\tvalue: 1,\n\t\t\tinputMode: 'numeric'\n\t\t} );\n\n\t\tstartIndexFieldView.fieldView.on( 'input', () => {\n\t\t\tconst inputElement = startIndexFieldView.fieldView.element!;\n\t\t\tconst startIndex = inputElement.valueAsNumber;\n\n\t\t\tif ( Number.isNaN( startIndex ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !inputElement.checkValidity() ) {\n\t\t\t\tstartIndexFieldView.errorText = t( 'Start index must be greater than 0.' );\n\t\t\t} else {\n\t\t\t\tthis.fire<ListPropertiesViewListStartEvent>( 'listStart', { startIndex } );\n\t\t\t}\n\t\t} );\n\n\t\treturn startIndexFieldView;\n\t}\n\n\t/**\n\t * Creates the reversed list switch button.\n\t */\n\tprivate _createReversedSwitchButton() {\n\t\tconst t = this.locale.t;\n\t\tconst reversedButtonView = new SwitchButtonView( this.locale );\n\n\t\treversedButtonView.set( {\n\t\t\twithText: true,\n\t\t\tlabel: t( 'Reversed order' ),\n\t\t\tclass: 'ck-numbered-list-properties__reversed-order'\n\t\t} );\n\n\t\treversedButtonView.delegate( 'execute' ).to( this, 'listReversed' );\n\n\t\treturn reversedButtonView;\n\t}\n}\n\nexport type StylesView = View & {\n\tchildren: ViewCollection;\n\tfocusTracker: FocusTracker;\n\tkeystrokes: KeystrokeHandler;\n\tfocus(): void;\n};\n\n/**\n * Fired when the list start index value has changed via {@link ~ListPropertiesView#startIndexFieldView}.\n *\n * @eventName ~ListPropertiesView#listStart\n */\nexport type ListPropertiesViewListStartEvent = {\n\tname: 'listStart';\n\targs: [ data: { startIndex: number } ];\n};\n\n/**\n * Fired when the list order has changed (reversed) via {@link ~ListPropertiesView#reversedSwitchButtonView}.\n *\n * @eventName ~ListPropertiesView#listReversed\n */\nexport type ListPropertiesViewListReversedEvent = {\n\tname: 'listReversed';\n\targs: [];\n};\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./liststyles.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties/listpropertiesui\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\n\nimport {\n\tButtonView,\n\tSplitButtonView,\n\tcreateDropdown,\n\tfocusChildOnDropdownOpen,\n\ttype DropdownView\n} from 'ckeditor5/src/ui';\n\nimport type { Locale } from 'ckeditor5/src/utils';\n\nimport ListPropertiesView from './ui/listpropertiesview';\n\nimport type ListStyleCommand from './liststylecommand';\nimport type DocumentListStyleCommand from '../documentlistproperties/documentliststylecommand';\nimport type ListStartCommand from './liststartcommand';\nimport type DocumentListStartCommand from '../documentlistproperties/documentliststartcommand';\nimport type ListReversedCommand from './listreversedcommand';\nimport type DocumentListReversedCommand from '../documentlistproperties/documentlistreversedcommand';\n\nimport bulletedListIcon from '../../theme/icons/bulletedlist.svg';\nimport numberedListIcon from '../../theme/icons/numberedlist.svg';\n\nimport listStyleDiscIcon from '../../theme/icons/liststyledisc.svg';\nimport listStyleCircleIcon from '../../theme/icons/liststylecircle.svg';\nimport listStyleSquareIcon from '../../theme/icons/liststylesquare.svg';\nimport listStyleDecimalIcon from '../../theme/icons/liststyledecimal.svg';\nimport listStyleDecimalWithLeadingZeroIcon from '../../theme/icons/liststyledecimalleadingzero.svg';\nimport listStyleLowerRomanIcon from '../../theme/icons/liststylelowerroman.svg';\nimport listStyleUpperRomanIcon from '../../theme/icons/liststyleupperroman.svg';\nimport listStyleLowerLatinIcon from '../../theme/icons/liststylelowerlatin.svg';\nimport listStyleUpperLatinIcon from '../../theme/icons/liststyleupperlatin.svg';\n\nimport '../../theme/liststyles.css';\n\n/**\n * The list properties UI plugin. It introduces the extended `'bulletedList'` and `'numberedList'` toolbar\n * buttons that allow users to control such aspects of list as the marker, start index or order.\n *\n * **Note**: Buttons introduced by this plugin override implementations from the {@link module:list/list/listui~ListUI}\n * (because they share the same names).\n */\nexport default class ListPropertiesUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ListPropertiesUI' {\n\t\treturn 'ListPropertiesUI';\n\t}\n\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.locale.t;\n\t\tconst enabledProperties = editor.config.get( 'list.properties' )!;\n\n\t\t// Note: When this plugin does not register the \"bulletedList\" dropdown due to properties configuration,\n\t\t// a simple button will be still registered under the same name by ListUI as a fallback. This should happen\n\t\t// in most editor configuration because the List plugin automatically requires ListUI.\n\t\tif ( enabledProperties.styles ) {\n\t\t\teditor.ui.componentFactory.add( 'bulletedList', getDropdownViewCreator( {\n\t\t\t\teditor,\n\t\t\t\tparentCommandName: 'bulletedList',\n\t\t\t\tbuttonLabel: t( 'Bulleted List' ),\n\t\t\t\tbuttonIcon: bulletedListIcon,\n\t\t\t\tstyleGridAriaLabel: t( 'Bulleted list styles toolbar' ),\n\t\t\t\tstyleDefinitions: [\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the disc list style' ),\n\t\t\t\t\t\ttooltip: t( 'Disc' ),\n\t\t\t\t\t\ttype: 'disc',\n\t\t\t\t\t\ticon: listStyleDiscIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the circle list style' ),\n\t\t\t\t\t\ttooltip: t( 'Circle' ),\n\t\t\t\t\t\ttype: 'circle',\n\t\t\t\t\t\ticon: listStyleCircleIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the square list style' ),\n\t\t\t\t\t\ttooltip: t( 'Square' ),\n\t\t\t\t\t\ttype: 'square',\n\t\t\t\t\t\ticon: listStyleSquareIcon\n\t\t\t\t\t}\n\t\t\t\t]\n\t\t\t} ) );\n\t\t}\n\n\t\t// Note: When this plugin does not register the \"numberedList\" dropdown due to properties configuration,\n\t\t// a simple button will be still registered under the same name by ListUI as a fallback. This should happen\n\t\t// in most editor configuration because the List plugin automatically requires ListUI.\n\t\tif ( enabledProperties.styles || enabledProperties.startIndex || enabledProperties.reversed ) {\n\t\t\teditor.ui.componentFactory.add( 'numberedList', getDropdownViewCreator( {\n\t\t\t\teditor,\n\t\t\t\tparentCommandName: 'numberedList',\n\t\t\t\tbuttonLabel: t( 'Numbered List' ),\n\t\t\t\tbuttonIcon: numberedListIcon,\n\t\t\t\tstyleGridAriaLabel: t( 'Numbered list styles toolbar' ),\n\t\t\t\tstyleDefinitions: [\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the decimal list style' ),\n\t\t\t\t\t\ttooltip: t( 'Decimal' ),\n\t\t\t\t\t\ttype: 'decimal',\n\t\t\t\t\t\ticon: listStyleDecimalIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the decimal with leading zero list style' ),\n\t\t\t\t\t\ttooltip: t( 'Decimal with leading zero' ),\n\t\t\t\t\t\ttype: 'decimal-leading-zero',\n\t\t\t\t\t\ticon: listStyleDecimalWithLeadingZeroIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the lower–roman list style' ),\n\t\t\t\t\t\ttooltip: t( 'Lower–roman' ),\n\t\t\t\t\t\ttype: 'lower-roman',\n\t\t\t\t\t\ticon: listStyleLowerRomanIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the upper–roman list style' ),\n\t\t\t\t\t\ttooltip: t( 'Upper-roman' ),\n\t\t\t\t\t\ttype: 'upper-roman',\n\t\t\t\t\t\ticon: listStyleUpperRomanIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the lower–latin list style' ),\n\t\t\t\t\t\ttooltip: t( 'Lower-latin' ),\n\t\t\t\t\t\ttype: 'lower-latin',\n\t\t\t\t\t\ticon: listStyleLowerLatinIcon\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\tlabel: t( 'Toggle the upper–latin list style' ),\n\t\t\t\t\t\ttooltip: t( 'Upper-latin' ),\n\t\t\t\t\t\ttype: 'upper-latin',\n\t\t\t\t\t\ticon: listStyleUpperLatinIcon\n\t\t\t\t\t}\n\t\t\t\t]\n\t\t\t} ) );\n\t\t}\n\t}\n}\n\n/**\n * A helper that returns a function that creates a split button with a toolbar in the dropdown,\n * which in turn contains buttons allowing users to change list styles in the context of the current selection.\n *\n * @param options.editor\n * @param options.parentCommandName The name of the higher-order editor command associated with\n * the set of particular list styles (e.g. \"bulletedList\" for \"disc\", \"circle\", and \"square\" styles).\n * @param options.buttonLabel Label of the main part of the split button.\n * @param options.buttonIcon The SVG string of an icon for the main part of the split button.\n * @param options.styleGridAriaLabel The ARIA label for the styles grid in the split button dropdown.\n * @param options.styleDefinitions Definitions of the style buttons.\n * @returns A function that can be passed straight into {@link module:ui/componentfactory~ComponentFactory#add}.\n */\nfunction getDropdownViewCreator( {\n\teditor,\n\tparentCommandName,\n\tbuttonLabel,\n\tbuttonIcon,\n\tstyleGridAriaLabel,\n\tstyleDefinitions\n}: {\n\teditor: Editor;\n\tparentCommandName: string;\n\tbuttonLabel: string;\n\tbuttonIcon: string;\n\tstyleGridAriaLabel: string;\n\tstyleDefinitions: Array<StyleDefinition>;\n} ) {\n\tconst parentCommand = editor.commands.get( parentCommandName )!;\n\n\treturn ( locale: Locale ) => {\n\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\tconst mainButtonView = dropdownView.buttonView;\n\n\t\tdropdownView.bind( 'isEnabled' ).to( parentCommand );\n\t\tdropdownView.class = 'ck-list-styles-dropdown';\n\n\t\t// Main button was clicked.\n\t\tmainButtonView.on( 'execute', () => {\n\t\t\teditor.execute( parentCommandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\tmainButtonView.set( {\n\t\t\tlabel: buttonLabel,\n\t\t\ticon: buttonIcon,\n\t\t\ttooltip: true,\n\t\t\tisToggleable: true\n\t\t} );\n\n\t\tmainButtonView.bind( 'isOn' ).to( parentCommand, 'value', value => !!value );\n\n\t\tdropdownView.once( 'change:isOpen', () => {\n\t\t\tconst listPropertiesView = createListPropertiesView( {\n\t\t\t\teditor,\n\t\t\t\tdropdownView,\n\t\t\t\tparentCommandName,\n\t\t\t\tstyleGridAriaLabel,\n\t\t\t\tstyleDefinitions\n\t\t\t} );\n\n\t\t\tdropdownView.panelView.children.add( listPropertiesView );\n\t\t} );\n\n\t\t// Focus the editable after executing the command.\n\t\t// Overrides a default behaviour where the focus is moved to the dropdown button (#12125).\n\t\tdropdownView.on( 'execute', () => {\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn dropdownView;\n\t};\n}\n\n/**\n * A helper that returns a function (factory) that creates individual buttons used by users to change styles\n * of lists.\n *\n * @param options.editor\n * @param options.listStyleCommand The instance of the `ListStylesCommand` class.\n * @param options.parentCommandName The name of the higher-order command associated with a\n * particular list style (e.g. \"bulletedList\" is associated with \"square\" and \"numberedList\" is associated with \"roman\").\n * @returns A function that can be passed straight into {@link module:ui/componentfactory~ComponentFactory#add}.\n */\nfunction getStyleButtonCreator( {\n\teditor,\n\tlistStyleCommand,\n\tparentCommandName\n}: {\n\teditor: Editor;\n\tlistStyleCommand: ListStyleCommand | DocumentListStyleCommand;\n\tparentCommandName: string;\n} ) {\n\tconst locale = editor.locale;\n\tconst parentCommand = editor.commands.get( parentCommandName )!;\n\n\treturn ( { label, type, icon, tooltip }: StyleDefinition ) => {\n\t\tconst button = new ButtonView( locale );\n\n\t\tbutton.set( { label, icon, tooltip } );\n\n\t\tlistStyleCommand.on( 'change:value', () => {\n\t\t\tbutton.isOn = listStyleCommand.value === type;\n\t\t} );\n\n\t\tbutton.on( 'execute', () => {\n\t\t\t// If the content the selection is anchored to is a list, let's change its style.\n\t\t\tif ( parentCommand.value ) {\n\t\t\t\t// If the current list style is not set in the model or the style is different than the\n\t\t\t\t// one to be applied, simply apply the new style.\n\t\t\t\tif ( listStyleCommand.value !== type ) {\n\t\t\t\t\teditor.execute( 'listStyle', { type } );\n\t\t\t\t}\n\t\t\t\t// If the style was the same, remove it (the button works as an off toggle).\n\t\t\t\telse {\n\t\t\t\t\teditor.execute( 'listStyle', { type: listStyleCommand.defaultType } );\n\t\t\t\t}\n\t\t\t}\n\t\t\t// Otherwise, leave the creation of the styled list to the `ListStyleCommand`.\n\t\t\telse {\n\t\t\t\teditor.model.change( () => {\n\t\t\t\t\teditor.execute( 'listStyle', { type } );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\n\t\treturn button;\n\t};\n}\n\n/**\n * A helper that creates the properties view for the individual style dropdown.\n *\n * @param options.editor Editor instance.\n * @param options.dropdownView Styles dropdown view that hosts the properties view.\n * @param options.parentCommandName The name of the higher-order editor command associated with\n * the set of particular list styles (e.g. \"bulletedList\" for \"disc\", \"circle\", and \"square\" styles).\n * @param options.styleDefinitions Definitions of the style buttons.\n * @param options.styleGridAriaLabel An assistive technologies label set on the grid of styles (if the grid is rendered).\n */\nfunction createListPropertiesView( {\n\teditor,\n\tdropdownView,\n\tparentCommandName,\n\tstyleDefinitions,\n\tstyleGridAriaLabel\n}: {\n\teditor: Editor;\n\tdropdownView: DropdownView;\n\tparentCommandName: string;\n\tstyleDefinitions: Array<StyleDefinition>;\n\tstyleGridAriaLabel: string;\n} ) {\n\tconst locale = editor.locale;\n\tconst enabledProperties = editor.config.get( 'list.properties' )!;\n\tlet styleButtonViews = null;\n\n\tif ( parentCommandName != 'numberedList' ) {\n\t\tenabledProperties.startIndex = false;\n\t\tenabledProperties.reversed = false;\n\t}\n\n\tif ( enabledProperties.styles ) {\n\t\tconst listStyleCommand: ListStyleCommand | DocumentListStyleCommand = editor.commands.get( 'listStyle' )!;\n\n\t\tconst styleButtonCreator = getStyleButtonCreator( {\n\t\t\teditor,\n\t\t\tparentCommandName,\n\t\t\tlistStyleCommand\n\t\t} );\n\n\t\t// The command can be ListStyleCommand or DocumentListStyleCommand.\n\t\tconst isStyleTypeSupported = typeof listStyleCommand.isStyleTypeSupported == 'function' ?\n\t\t\t( styleDefinition: StyleDefinition ) => listStyleCommand.isStyleTypeSupported( styleDefinition.type ) :\n\t\t\t() => true;\n\n\t\tstyleButtonViews = styleDefinitions.filter( isStyleTypeSupported ).map( styleButtonCreator );\n\t}\n\n\tconst listPropertiesView = new ListPropertiesView( locale, {\n\t\tstyleGridAriaLabel,\n\t\tenabledProperties,\n\t\tstyleButtonViews\n\t} );\n\n\tif ( enabledProperties.styles ) {\n\t\t// Accessibility: focus the first active style when opening the dropdown.\n\t\tfocusChildOnDropdownOpen( dropdownView, () => {\n\t\t\treturn listPropertiesView.stylesView!.children.find( ( child: any ) => child.isOn );\n\t\t} );\n\t}\n\n\tif ( enabledProperties.startIndex ) {\n\t\tconst listStartCommand: ListStartCommand | DocumentListStartCommand = editor.commands.get( 'listStart' )!;\n\n\t\tlistPropertiesView.startIndexFieldView!.bind( 'isEnabled' ).to( listStartCommand );\n\t\tlistPropertiesView.startIndexFieldView!.fieldView.bind( 'value' ).to( listStartCommand as any );\n\t\tlistPropertiesView.on( 'listStart', ( evt, data ) => editor.execute( 'listStart', data ) );\n\t}\n\n\tif ( enabledProperties.reversed ) {\n\t\tconst listReversedCommand: ListReversedCommand | DocumentListReversedCommand = editor.commands.get( 'listReversed' )!;\n\n\t\tlistPropertiesView.reversedSwitchButtonView!.bind( 'isEnabled' ).to( listReversedCommand );\n\t\tlistPropertiesView.reversedSwitchButtonView!.bind( 'isOn' ).to( listReversedCommand, 'value', value => !!value );\n\t\tlistPropertiesView.on( 'listReversed', () => {\n\t\t\tconst isReversed = listReversedCommand.value;\n\n\t\t\teditor.execute( 'listReversed', { reversed: !isReversed } );\n\t\t} );\n\t}\n\n\t// Make sure applying styles closes the dropdown.\n\tlistPropertiesView.delegate( 'execute' ).to( dropdownView );\n\n\treturn listPropertiesView;\n}\n\ninterface StyleDefinition {\n\n\t/**\n\t * The label of the style button.\n\t */\n\tlabel: string;\n\n\t/**\n\t * The type of the style button (e.g. \"roman\" or \"circle\").\n\t */\n\ttype: string;\n\n\t/**\n\t * The SVG string of an icon of the style button.\n\t */\n\ticon: string;\n\n\t/**\n\t * The tooltip text of the button (shorter than verbose label).\n\t */\n\ttooltip: string;\n}\n","export default \"<svg viewBox=\\\"0 0 44 44\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z\\\" fill-opacity=\\\".163\\\"/><path d=\\\"M11 27a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0-9a3 3 0 1 1 0 6 3 3 0 0 1 0-6z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 44 44\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z\\\" fill-opacity=\\\".163\\\"/><path d=\\\"M11 27a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4zm0-10a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4zm0-10a3 3 0 1 1 0 6 3 3 0 0 1 0-6zm0 1a2 2 0 1 0 0 4 2 2 0 0 0 0-4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 44 44\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z\\\" fill-opacity=\\\".163\\\"/><path d=\\\"M14 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1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z\\\" fill-opacity=\\\".163\\\"/><path d=\\\"M9.62 14.105c.272 0 .528-.05.768-.153s.466-.257.677-.462c.009.024.023.072.044.145.047.161.086.283.119.365h1.221a2.649 2.649 0 0 1-.222-.626c-.04-.195-.059-.498-.059-.908l.013-1.441c0-.536-.055-.905-.165-1.105-.11-.201-.3-.367-.569-.497-.27-.13-.68-.195-1.23-.195-.607 0-1.064.108-1.371.325-.308.217-.525.55-.65 1.002l1.12.202c.076-.217.176-.369.299-.455.123-.086.294-.13.514-.13.325 0 .546.05.663.152.118.101.176.27.176.508v.123c-.222.093-.622.194-1.2.303-.427.082-.755.178-.982.288-.227.11-.403.268-.53.474a1.327 1.327 0 0 0-.188.706c0 .398.138.728.415.988.277.261.656.391 1.136.391zm.368-.87a.675.675 0 0 1-.492-.189.606.606 0 0 1-.193-.448c0-.176.08-.32.241-.435.106-.07.33-.142.673-.215a7.19 7.19 0 0 0 .751-.19v.247c0 .296-.016.496-.048.602a.773.773 0 0 1-.295.409 1.07 1.07 0 0 1-.637.22zm4.645.765v-1.235h-1.235V14h1.235zM10.2 25.105c.542 0 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xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M35 29a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17zm0-9a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H18a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1h17z\\\" fill-opacity=\\\".163\\\"/><path d=\\\"m7.88 15 .532-1.463h2.575L11.549 15h1.415l-2.58-6.442H9.01L6.5 15h1.38zm2.69-2.549H8.811l.87-2.39.887 2.39zM14.88 15v-1.235h-1.234V15h1.234zM9.352 25c.83-.006 1.352-.02 1.569-.044.346-.038.636-.14.872-.305.236-.166.422-.387.558-.664.137-.277.205-.562.205-.855 0-.372-.106-.695-.317-.97-.21-.276-.512-.471-.905-.585a1.51 1.51 0 0 0 .661-.567 1.5 1.5 0 0 0 .244-.83c0-.28-.066-.53-.197-.754a1.654 1.654 0 0 0-.495-.539 1.676 1.676 0 0 0-.672-.266c-.25-.042-.63-.063-1.14-.063H7.158V25h2.193zm.142-3.88H8.46v-1.49h.747c.612 0 .983.007 1.112.022.217.026.38.102.49.226.11.125.165.287.165.486a.68.68 0 0 1-.192.503.86.86 0 0 1-.525.23 11.47 11.47 0 0 1-.944.023h.18zm.17 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All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/checktodolistcommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { Element } from 'ckeditor5/src/engine';\n\nconst attributeKey = 'todoListChecked';\n\n/**\n * The check to-do command.\n *\n * The command is registered by the {@link module:list/todolist/todolistediting~TodoListEditing} as\n * the `checkTodoList` editor command and it is also available via aliased `todoListCheck` name.\n */\nexport default class CheckTodoListCommand extends Command {\n\t/**\n\t * A list of to-do list items selected by the {@link module:engine/model/selection~Selection}.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: boolean;\n\n\t/**\n\t * A list of to-do list items selected by the {@link module:engine/model/selection~Selection}.\n\t *\n\t * @internal\n\t */\n\tpublic _selectedElements: Array<Element>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._selectedElements = [];\n\n\t\t// Refresh command before executing to be sure all values are up to date.\n\t\t// It is needed when selection has changed before command execution, in the same change block.\n\t\tthis.on( 'execute', () => {\n\t\t\tthis.refresh();\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Updates the command's {@link #value} and {@link #isEnabled} properties based on the current selection.\n\t */\n\tpublic override refresh(): void {\n\t\tthis._selectedElements = this._getSelectedItems();\n\t\tthis.value = this._selectedElements.every( element => !!element.getAttribute( attributeKey ) );\n\t\tthis.isEnabled = !!this._selectedElements.length;\n\t}\n\n\t/**\n\t * Gets all to-do list items selected by the {@link module:engine/model/selection~Selection}.\n\t */\n\tprivate _getSelectedItems() {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\n\t\tconst selectionRange = model.document.selection.getFirstRange()!;\n\t\tconst startElement = selectionRange.start.parent as Element;\n\t\tconst elements: Array<Element> = [];\n\n\t\tif ( schema.checkAttribute( startElement, attributeKey ) ) {\n\t\t\telements.push( startElement );\n\t\t}\n\n\t\tfor ( const item of selectionRange.getItems() as Iterable<Element> ) {\n\t\t\tif ( schema.checkAttribute( item, attributeKey ) && !elements.includes( item ) ) {\n\t\t\t\telements.push( item );\n\t\t\t}\n\t\t}\n\n\t\treturn elements;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @param options.forceValue If set, it will force the command behavior. If `true`, the command will apply\n\t * the attribute. Otherwise, the command will remove the attribute. If not set, the command will look for its current\n\t * value to decide what it should do.\n\t */\n\tpublic override execute( options: { forceValue?: boolean } = {} ): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\tfor ( const element of this._selectedElements ) {\n\t\t\t\tconst value = ( options.forceValue === undefined ) ? !this.value : options.forceValue;\n\n\t\t\t\tif ( value ) {\n\t\t\t\t\twriter.setAttribute( attributeKey, true, element );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( attributeKey, element );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/todolistconverters\n */\n\n/* global document */\n\nimport type {\n\tDowncastAttributeEvent,\n\tDowncastInsertEvent,\n\tDowncastWriter,\n\tElement,\n\tMapperModelToViewPositionEvent,\n\tModel,\n\tUpcastElementEvent,\n\tView,\n\tViewElement\n} from 'ckeditor5/src/engine';\n\nimport { createElement, type GetCallback } from 'ckeditor5/src/utils';\n\nimport { generateLiInUl, injectViewList, positionAfterUiElements, findNestedList } from '../list/utils';\n\n/**\n * A model-to-view converter for the `listItem` model element insertion.\n *\n * It converts the `listItem` model element to an unordered list with a {@link module:engine/view/uielement~UIElement checkbox element}\n * at the beginning of each list item. It also merges the list with surrounding lists (if available).\n *\n * It is used by {@link module:engine/controller/editingcontroller~EditingController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n * @param model Model instance.\n * @param onCheckboxChecked Callback function.\n * @returns Returns a conversion callback.\n */\nexport function modelViewInsertion(\n\tmodel: Model,\n\tonCheckboxChecked: ( element: Element ) => void\n): GetCallback<DowncastInsertEvent<Element>> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst consumable = conversionApi.consumable;\n\n\t\tif ( !consumable.test( data.item, 'insert' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listType' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listIndent' )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( data.item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelItem = data.item;\n\n\t\tconsumable.consume( modelItem, 'insert' );\n\t\tconsumable.consume( modelItem, 'attribute:listType' );\n\t\tconsumable.consume( modelItem, 'attribute:listIndent' );\n\t\tconsumable.consume( modelItem, 'attribute:todoListChecked' );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewItem = generateLiInUl( modelItem, conversionApi );\n\n\t\tconst isChecked = !!modelItem.getAttribute( 'todoListChecked' );\n\t\tconst checkmarkElement = createCheckmarkElement( modelItem, viewWriter, isChecked, onCheckboxChecked );\n\n\t\tconst span = viewWriter.createContainerElement( 'span', {\n\t\t\tclass: 'todo-list__label__description'\n\t\t} );\n\n\t\tviewWriter.addClass( 'todo-list', viewItem.parent as any );\n\t\tviewWriter.insert( viewWriter.createPositionAt( viewItem, 0 ), checkmarkElement );\n\t\tviewWriter.insert( viewWriter.createPositionAfter( checkmarkElement ), span );\n\n\t\tinjectViewList( modelItem, viewItem, conversionApi, model );\n\t};\n}\n\n/**\n * A model-to-view converter for the `listItem` model element insertion.\n *\n * It is used by {@link module:engine/controller/datacontroller~DataController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:insert\n * @param model Model instance.\n * @returns Returns a conversion callback.\n */\nexport function dataModelViewInsertion( model: Model ): GetCallback<DowncastInsertEvent<Element>> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst consumable = conversionApi.consumable;\n\n\t\tif ( !consumable.test( data.item, 'insert' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listType' ) ||\n\t\t\t!consumable.test( data.item, 'attribute:listIndent' )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( data.item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelItem = data.item;\n\n\t\tconsumable.consume( modelItem, 'insert' );\n\t\tconsumable.consume( modelItem, 'attribute:listType' );\n\t\tconsumable.consume( modelItem, 'attribute:listIndent' );\n\t\tconsumable.consume( modelItem, 'attribute:todoListChecked' );\n\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst viewItem = generateLiInUl( modelItem, conversionApi );\n\n\t\tviewWriter.addClass( 'todo-list', viewItem.parent as any );\n\n\t\tconst label = viewWriter.createContainerElement( 'label', {\n\t\t\tclass: 'todo-list__label'\n\t\t} );\n\n\t\tconst checkbox = viewWriter.createEmptyElement( 'input', {\n\t\t\ttype: 'checkbox',\n\t\t\tdisabled: 'disabled'\n\t\t} );\n\n\t\tconst span = viewWriter.createContainerElement( 'span', {\n\t\t\tclass: 'todo-list__label__description'\n\t\t} );\n\n\t\tif ( modelItem.getAttribute( 'todoListChecked' ) ) {\n\t\t\tviewWriter.setAttribute( 'checked', 'checked', checkbox );\n\t\t}\n\n\t\tviewWriter.insert( viewWriter.createPositionAt( viewItem, 0 ), label );\n\t\tviewWriter.insert( viewWriter.createPositionAt( label, 0 ), checkbox );\n\t\tviewWriter.insert( viewWriter.createPositionAfter( checkbox ), span );\n\n\t\tinjectViewList( modelItem, viewItem, conversionApi, model );\n\t};\n}\n\n/**\n * A view-to-model converter for the checkbox element inside a view list item.\n *\n * It changes the `listType` of the model `listItem` to a `todo` value.\n * When a view checkbox element is marked as checked, an additional `todoListChecked=\"true\"` attribute is added to the model item.\n *\n * It is used by {@link module:engine/controller/datacontroller~DataController}.\n *\n * @see module:engine/conversion/upcastdispatcher~UpcastDispatcher#event:element\n */\nexport const dataViewModelCheckmarkInsertion: GetCallback<UpcastElementEvent> = ( evt, data, conversionApi ) => {\n\tconst modelCursor = data.modelCursor;\n\tconst modelItem = modelCursor.parent;\n\tconst viewItem = data.viewItem;\n\n\tif ( viewItem.getAttribute( 'type' ) != 'checkbox' || modelItem.name != 'listItem' || !modelCursor.isAtStart ) {\n\t\treturn;\n\t}\n\n\tif ( !conversionApi.consumable.consume( viewItem, { name: true } ) ) {\n\t\treturn;\n\t}\n\n\tconst writer = conversionApi.writer;\n\n\twriter.setAttribute( 'listType', 'todo', modelItem );\n\n\tif ( data.viewItem.hasAttribute( 'checked' ) ) {\n\t\twriter.setAttribute( 'todoListChecked', true, modelItem );\n\t}\n\n\tdata.modelRange = writer.createRange( modelCursor );\n};\n\n/**\n * A model-to-view converter for the `listType` attribute change on the `listItem` model element.\n *\n * This change means that the `<li>` element parent changes to `<ul class=\"todo-list\">` and a\n * {@link module:engine/view/uielement~UIElement checkbox UI element} is added at the beginning\n * of the list item element (or vice versa).\n *\n * This converter is preceded by {@link module:list/list/converters~modelViewChangeType} and followed by\n * {@link module:list/list/converters~modelViewMergeAfterChangeType} to handle splitting and merging surrounding lists of the same type.\n *\n * It is used by {@link module:engine/controller/editingcontroller~EditingController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param onCheckedChange Callback fired after clicking the checkbox UI element.\n * @param view Editing view controller.\n * @returns Returns a conversion callback.\n */\nexport function modelViewChangeType(\n\tonCheckedChange: ( element: Element ) => void,\n\tview: View\n): GetCallback<DowncastAttributeEvent<Element>> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewItem = conversionApi.mapper.toViewElement( data.item )!;\n\t\tconst viewWriter = conversionApi.writer;\n\n\t\tconst labelElement = findLabel( viewItem, view )!;\n\n\t\tif ( data.attributeNewValue == 'todo' ) {\n\t\t\tconst isChecked = !!data.item.getAttribute( 'todoListChecked' );\n\t\t\tconst checkmarkElement = createCheckmarkElement( data.item, viewWriter, isChecked, onCheckedChange );\n\n\t\t\tconst span = viewWriter.createContainerElement( 'span', {\n\t\t\t\tclass: 'todo-list__label__description'\n\t\t\t} );\n\n\t\t\tconst itemRange = viewWriter.createRangeIn( viewItem );\n\t\t\tconst nestedList = findNestedList( viewItem );\n\n\t\t\tconst descriptionStart = positionAfterUiElements( itemRange.start );\n\t\t\tconst descriptionEnd = nestedList ? viewWriter.createPositionBefore( nestedList ) : itemRange.end;\n\t\t\tconst descriptionRange = viewWriter.createRange( descriptionStart, descriptionEnd );\n\n\t\t\tviewWriter.addClass( 'todo-list', viewItem.parent as any );\n\t\t\tviewWriter.move( descriptionRange, viewWriter.createPositionAt( span, 0 ) );\n\t\t\tviewWriter.insert( viewWriter.createPositionAt( viewItem, 0 ), checkmarkElement );\n\t\t\tviewWriter.insert( viewWriter.createPositionAfter( checkmarkElement ), span );\n\t\t} else if ( data.attributeOldValue == 'todo' ) {\n\t\t\tconst descriptionSpan = findDescription( viewItem, view )!;\n\n\t\t\tviewWriter.removeClass( 'todo-list', viewItem.parent as any );\n\t\t\tviewWriter.remove( labelElement );\n\t\t\tviewWriter.move( viewWriter.createRangeIn( descriptionSpan ), viewWriter.createPositionBefore( descriptionSpan ) );\n\t\t\tviewWriter.remove( descriptionSpan );\n\t\t}\n\t};\n}\n\n/**\n * A model-to-view converter for the `todoListChecked` attribute change on the `listItem` model element.\n *\n * It marks the {@link module:engine/view/uielement~UIElement checkbox UI element} as checked.\n *\n * It is used by {@link module:engine/controller/editingcontroller~EditingController}.\n *\n * @see module:engine/conversion/downcastdispatcher~DowncastDispatcher#event:attribute\n * @param onCheckedChange Callback fired after clicking the checkbox UI element.\n * @returns Returns a conversion callback.\n */\nexport function modelViewChangeChecked(\n\tonCheckedChange: ( element: Element ) => void\n): GetCallback<DowncastAttributeEvent<Element>> {\n\treturn ( evt, data, conversionApi ) => {\n\t\t// Do not convert `todoListChecked` attribute when to-do list item has changed to other list item.\n\t\t// This attribute will be removed by the model post fixer.\n\t\tif ( data.item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !conversionApi.consumable.consume( data.item, 'attribute:todoListChecked' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { mapper, writer: viewWriter } = conversionApi;\n\t\tconst isChecked = !!data.item.getAttribute( 'todoListChecked' );\n\t\tconst viewItem = mapper.toViewElement( data.item )!;\n\t\t// Because of m -> v position mapper we can be sure checkbox is always at the beginning.\n\t\tconst oldCheckmarkElement = viewItem.getChild( 0 )!;\n\t\tconst newCheckmarkElement = createCheckmarkElement( data.item, viewWriter, isChecked, onCheckedChange );\n\n\t\tviewWriter.insert( viewWriter.createPositionAfter( oldCheckmarkElement ), newCheckmarkElement );\n\t\tviewWriter.remove( oldCheckmarkElement );\n\t};\n}\n\n/**\n * A model-to-view position at zero offset mapper.\n *\n * This helper ensures that position inside todo-list in the view is mapped after the checkbox.\n *\n * It only handles the position at the beginning of a list item as other positions are properly mapped be the default mapper.\n */\nexport function mapModelToViewPosition( view: View ): GetCallback<MapperModelToViewPositionEvent> {\n\treturn ( evt, data ) => {\n\t\tconst modelPosition = data.modelPosition;\n\t\tconst parent = modelPosition.parent;\n\n\t\tif ( !parent.is( 'element', 'listItem' ) || parent.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst viewLi = data.mapper.toViewElement( parent )!;\n\t\tconst descSpan = findDescription( viewLi, view );\n\n\t\tif ( descSpan ) {\n\t\t\tdata.viewPosition = data.mapper.findPositionIn( descSpan, modelPosition.offset );\n\t\t}\n\t};\n}\n\n/**\n * Creates a checkbox UI element.\n */\nfunction createCheckmarkElement(\n\tmodelItem: Element,\n\tviewWriter: DowncastWriter,\n\tisChecked: boolean,\n\tonChange: ( element: Element ) => void\n) {\n\tconst uiElement = viewWriter.createUIElement(\n\t\t'label',\n\t\t{\n\t\t\tclass: 'todo-list__label',\n\t\t\tcontenteditable: false\n\t\t},\n\t\tfunction( domDocument ) {\n\t\t\tconst checkbox = createElement( document, 'input', { type: 'checkbox', tabindex: '-1' } );\n\n\t\t\tif ( isChecked ) {\n\t\t\t\tcheckbox.setAttribute( 'checked', 'checked' );\n\t\t\t}\n\n\t\t\tcheckbox.addEventListener( 'change', () => onChange( modelItem ) );\n\n\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\tdomElement.appendChild( checkbox );\n\n\t\t\treturn domElement;\n\t\t}\n\t);\n\n\treturn uiElement;\n}\n\n// Helper method to find label element inside li.\nfunction findLabel( viewItem: ViewElement, view: View ) {\n\tconst range = view.createRangeIn( viewItem );\n\n\tfor ( const value of range ) {\n\t\tif ( value.item.is( 'uiElement', 'label' ) ) {\n\t\t\treturn value.item;\n\t\t}\n\t}\n}\n\nfunction findDescription( viewItem: ViewElement, view: View ) {\n\tconst range = view.createRangeIn( viewItem );\n\n\tfor ( const value of range ) {\n\t\tif ( value.item.is( 'containerElement', 'span' ) && value.item.hasClass( 'todo-list__label__description' ) ) {\n\t\t\treturn value.item;\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/todolistediting\n */\n\nimport type {\n\tDowncastAttributeEvent,\n\tDowncastInsertEvent,\n\tElement,\n\tItem,\n\tMapperModelToViewPositionEvent,\n\tModel,\n\tModelApplyOperationEvent,\n\tUpcastElementEvent,\n\tViewDocumentArrowKeyEvent,\n\tViewDocumentKeyDownEvent,\n\tAttributeOperation,\n\tRenameOperation\n} from 'ckeditor5/src/engine';\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport {\n\tgetCode,\n\tparseKeystroke,\n\tgetLocalizedArrowKeyCodeDirection,\n\ttype Locale,\n\ttype GetCallback\n} from 'ckeditor5/src/utils';\n\nimport ListCommand from '../list/listcommand';\nimport ListEditing from '../list/listediting';\nimport CheckTodoListCommand from './checktodolistcommand';\nimport {\n\tdataModelViewInsertion,\n\tdataViewModelCheckmarkInsertion,\n\tmapModelToViewPosition,\n\tmodelViewChangeChecked,\n\tmodelViewChangeType,\n\tmodelViewInsertion\n} from './todolistconverters';\n\nconst ITEM_TOGGLE_KEYSTROKE = parseKeystroke( 'Ctrl+Enter' );\n\n/**\n * The engine of the to-do list feature. It handles creating, editing and removing to-do lists and their items.\n *\n * It registers the entire functionality of the {@link module:list/list/listediting~ListEditing list editing plugin} and extends\n * it with the commands:\n *\n * - `'todoList'`,\n * - `'checkTodoList'`,\n * - `'todoListCheck'` as an alias for `checkTodoList` command.\n */\nexport default class TodoListEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TodoListEditing' {\n\t\treturn 'TodoListEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ListEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst { editing, data, model } = editor;\n\n\t\t// Extend schema.\n\t\tmodel.schema.extend( 'listItem', {\n\t\t\tallowAttributes: [ 'todoListChecked' ]\n\t\t} );\n\n\t\t// Disallow todoListChecked attribute on other nodes than listItem with to-do listType.\n\t\tmodel.schema.addAttributeCheck( ( context: any, attributeName ) => {\n\t\t\tconst item = context.last;\n\n\t\t\tif ( attributeName == 'todoListChecked' && item.name == 'listItem' && item.getAttribute( 'listType' ) != 'todo' ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\t// Register `todoList` command.\n\t\teditor.commands.add( 'todoList', new ListCommand( editor, 'todo' ) );\n\n\t\tconst checkTodoListCommand = new CheckTodoListCommand( editor );\n\n\t\t// Register `checkTodoList` command and add `todoListCheck` command as an alias for backward compatibility.\n\t\teditor.commands.add( 'checkTodoList', checkTodoListCommand );\n\t\teditor.commands.add( 'todoListCheck', checkTodoListCommand );\n\n\t\t// Define converters.\n\t\tdata.downcastDispatcher.on<DowncastInsertEvent<Element>>(\n\t\t\t'insert:listItem',\n\t\t\tdataModelViewInsertion( model ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\t\tdata.upcastDispatcher.on<UpcastElementEvent>(\n\t\t\t'element:input',\n\t\t\tdataViewModelCheckmarkInsertion,\n\t\t\t{ priority: 'high' }\n\t\t);\n\n\t\tediting.downcastDispatcher.on<DowncastInsertEvent<Element>>(\n\t\t\t'insert:listItem',\n\t\t\tmodelViewInsertion( model, listItem => this._handleCheckmarkChange( listItem ) ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\t\tediting.downcastDispatcher.on<DowncastAttributeEvent<Element>>(\n\t\t\t'attribute:listType:listItem',\n\t\t\tmodelViewChangeType( listItem => this._handleCheckmarkChange( listItem ), editing.view )\n\t\t);\n\t\tediting.downcastDispatcher.on<DowncastAttributeEvent<Element>>(\n\t\t\t'attribute:todoListChecked:listItem',\n\t\t\tmodelViewChangeChecked( listItem => this._handleCheckmarkChange( listItem ) )\n\t\t);\n\n\t\tediting.mapper.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', mapModelToViewPosition( editing.view ) );\n\t\tdata.mapper.on<MapperModelToViewPositionEvent>( 'modelToViewPosition', mapModelToViewPosition( editing.view ) );\n\n\t\t// Jump at the end of the previous node on left arrow key press, when selection is after the checkbox.\n\t\t//\n\t\t// <blockquote><p>Foo</p></blockquote>\n\t\t// <ul><li><checkbox/>{}Bar</li></ul>\n\t\t//\n\t\t// press: `<-`\n\t\t//\n\t\t// <blockquote><p>Foo{}</p></blockquote>\n\t\t// <ul><li><checkbox/>Bar</li></ul>\n\t\t//\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>(\n\t\t\tediting.view.document,\n\t\t\t'arrowKey',\n\t\t\tjumpOverCheckmarkOnSideArrowKeyPress( model, editor.locale ),\n\t\t\t{ context: 'li' }\n\t\t);\n\n\t\t// Toggle check state of selected to-do list items on keystroke.\n\t\tthis.listenTo<ViewDocumentKeyDownEvent>( editing.view.document, 'keydown', ( evt, data ) => {\n\t\t\tif ( getCode( data ) === ITEM_TOGGLE_KEYSTROKE ) {\n\t\t\t\teditor.execute( 'checkTodoList' );\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// Remove `todoListChecked` attribute when a host element is no longer a to-do list item.\n\t\tconst listItemsToFix = new Set<Item>();\n\n\t\tthis.listenTo<ModelApplyOperationEvent>( model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ] as RenameOperation | AttributeOperation;\n\n\t\t\tif ( operation.type == 'rename' && operation.oldName == 'listItem' ) {\n\t\t\t\tconst item = operation.position.nodeAfter!;\n\n\t\t\t\tif ( item.hasAttribute( 'todoListChecked' ) ) {\n\t\t\t\t\tlistItemsToFix.add( item );\n\t\t\t\t}\n\t\t\t} else if ( operation.type == 'changeAttribute' && operation.key == 'listType' && operation.oldValue === 'todo' ) {\n\t\t\t\tfor ( const item of operation.range.getItems() ) {\n\t\t\t\t\tif ( item.hasAttribute( 'todoListChecked' ) && item.getAttribute( 'listType' ) !== 'todo' ) {\n\t\t\t\t\t\tlistItemsToFix.add( item );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\tmodel.document.registerPostFixer( writer => {\n\t\t\tlet hasChanged = false;\n\n\t\t\tfor ( const listItem of listItemsToFix ) {\n\t\t\t\twriter.removeAttribute( 'todoListChecked', listItem );\n\t\t\t\thasChanged = true;\n\t\t\t}\n\n\t\t\tlistItemsToFix.clear();\n\n\t\t\treturn hasChanged;\n\t\t} );\n\t}\n\n\t/**\n\t * Handles the checkbox element change, moves the selection to the corresponding model item to make it possible\n\t * to toggle the `todoListChecked` attribute using the command, and restores the selection position.\n\t *\n\t * Some say it's a hack :) Moving the selection only for executing the command on a certain node and restoring it after,\n\t * is not a clear solution. We need to design an API for using commands beyond the selection range.\n\t * See https://github.com/ckeditor/ckeditor5/issues/1954.\n\t */\n\tprivate _handleCheckmarkChange( listItem: Element ) {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst previousSelectionRanges = Array.from( model.document.selection.getRanges() );\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( listItem, 'end' );\n\t\t\teditor.execute( 'checkTodoList' );\n\t\t\twriter.setSelection( previousSelectionRanges );\n\t\t} );\n\t}\n}\n\n/**\n * Handles the left/right (LTR/RTL content) arrow key and moves the selection at the end of the previous block element\n * if the selection is just after the checkbox element. In other words, it jumps over the checkbox element when\n * moving the selection to the left/right (LTR/RTL).\n *\n * @returns Callback for 'keydown' events.\n */\nfunction jumpOverCheckmarkOnSideArrowKeyPress( model: Model, locale: Locale ): GetCallback<ViewDocumentArrowKeyEvent> {\n\treturn ( eventInfo, domEventData ) => {\n\t\tconst direction = getLocalizedArrowKeyCodeDirection( domEventData.keyCode, locale.contentLanguageDirection );\n\n\t\tif ( direction != 'left' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tif ( !selection.isCollapsed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = selection.getFirstPosition()!;\n\t\tconst parent = position.parent;\n\n\t\tif ( parent.name === 'listItem' && parent.getAttribute( 'listType' ) == 'todo' && position.isAtStart ) {\n\t\t\tconst newRange = schema.getNearestSelectionRange( model.createPositionBefore( parent ), 'backward' );\n\n\t\t\tif ( newRange ) {\n\t\t\t\tmodel.change( writer => writer.setSelection( newRange ) );\n\t\t\t}\n\n\t\t\tdomEventData.preventDefault();\n\t\t\tdomEventData.stopPropagation();\n\t\t\teventInfo.stop();\n\t\t}\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist/todolistui\n */\n\nimport { createUIComponent } from '../list/utils';\nimport todoListIcon from '../../theme/icons/todolist.svg';\nimport { Plugin } from 'ckeditor5/src/core';\n\n/**\n * The to-do list UI feature. It introduces the `'todoList'` button that\n * allows to convert elements to and from to-do list items and to indent or outdent them.\n */\nexport default class TodoListUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TodoListUI' {\n\t\treturn 'TodoListUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst t = this.editor.t;\n\n\t\tcreateUIComponent( this.editor, 'todoList', t( 'To-do List' ), todoListIcon );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m2.315 14.705 2.224-2.24a.689.689 0 0 1 .963 0 .664.664 0 0 1 0 .949L2.865 16.07a.682.682 0 0 1-.112.089.647.647 0 0 1-.852-.051L.688 14.886a.635.635 0 0 1 0-.903.647.647 0 0 1 .91 0l.717.722zm5.185.045a.75.75 0 0 1 .75-.75h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75zM2.329 5.745l2.21-2.226a.689.689 0 0 1 .963 0 .664.664 0 0 1 0 .95L2.865 7.125a.685.685 0 0 1-.496.196.644.644 0 0 1-.468-.187L.688 5.912a.635.635 0 0 1 0-.903.647.647 0 0 1 .91 0l.73.736zM7.5 5.75A.75.75 0 0 1 8.25 5h9.5a.75.75 0 1 1 0 1.5h-9.5a.75.75 0 0 1-.75-.75z\\\"/></svg>\";","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./todolist.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/br\n */\n\nimport {\n\tDomConverter,\n\tViewDocument,\n\ttype UpcastWriter,\n\ttype ViewDocumentFragment,\n\ttype ViewElement,\n\ttype ViewNode\n} from 'ckeditor5/src/engine';\n\n/**\n * Transforms `<br>` elements that are siblings to some block element into a paragraphs.\n *\n * @param documentFragment The view structure to be transformed.\n */\nexport default function transformBlockBrsToParagraphs(\n\tdocumentFragment: ViewDocumentFragment,\n\twriter: UpcastWriter\n): void {\n\tconst viewDocument = new ViewDocument( writer.document.stylesProcessor );\n\tconst domConverter = new DomConverter( viewDocument, { renderingMode: 'data' } );\n\n\tconst blockElements = domConverter.blockElements;\n\tconst inlineObjectElements = domConverter.inlineObjectElements;\n\n\tconst elementsToReplace = [];\n\n\tfor ( const value of writer.createRangeIn( documentFragment ) ) {\n\t\tconst element = value.item;\n\n\t\tif ( element.is( 'element', 'br' ) ) {\n\t\t\tconst nextSibling = findSibling( element, 'forward', writer, { blockElements, inlineObjectElements } );\n\t\t\tconst previousSibling = findSibling( element, 'backward', writer, { blockElements, inlineObjectElements } );\n\n\t\t\tconst nextSiblingIsBlock = isBlockViewElement( nextSibling, blockElements );\n\t\t\tconst previousSiblingIsBlock = isBlockViewElement( previousSibling, blockElements );\n\n\t\t\t// If the <br> is surrounded by blocks then convert it to a paragraph:\n\t\t\t// * <p>foo</p>[<br>]<p>bar</p> -> <p>foo</p>[<p></p>]<p>bar</p>\n\t\t\t// * <p>foo</p>[<br>] -> <p>foo</p>[<p></p>]\n\t\t\t// * [<br>]<p>foo</p> -> [<p></p>]<p>foo</p>\n\t\t\tif ( previousSiblingIsBlock || nextSiblingIsBlock ) {\n\t\t\t\telementsToReplace.push( element );\n\t\t\t}\n\t\t}\n\t}\n\n\tfor ( const element of elementsToReplace ) {\n\t\tif ( element.hasClass( 'Apple-interchange-newline' ) ) {\n\t\t\twriter.remove( element );\n\t\t} else {\n\t\t\twriter.replace( element, writer.createElement( 'p' ) );\n\t\t}\n\t}\n}\n\n/**\n * Returns sibling node, threats inline elements as transparent (but should stop on an inline objects).\n */\nfunction findSibling(\n\tviewElement: ViewElement,\n\tdirection: 'forward' | 'backward',\n\twriter: UpcastWriter,\n\t{ blockElements, inlineObjectElements }: { blockElements: Array<string>; inlineObjectElements: Array<string> }\n) {\n\tlet position = writer.createPositionAt( viewElement, direction == 'forward' ? 'after' : 'before' );\n\n\t// Find first position that is just before a first:\n\t// * text node,\n\t// * block element,\n\t// * inline object element.\n\t// It's ignoring any inline (non-object) elements like span, strong, etc.\n\tposition = position.getLastMatchingPosition( ( { item } ) => (\n\t\titem.is( 'element' ) &&\n\t\t!blockElements.includes( item.name ) &&\n\t\t!inlineObjectElements.includes( item.name )\n\t), { direction } );\n\n\treturn direction == 'forward' ? position.nodeAfter : position.nodeBefore;\n}\n\n/**\n * Returns true for view elements that are listed as block view elements.\n */\nfunction isBlockViewElement( node: ViewNode | null, blockElements: Array<string> ) {\n\treturn !!node && node.is( 'element' ) && blockElements.includes( node.name );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/list\n */\n\nimport {\n\tMatcher,\n\tUpcastWriter,\n\ttype ViewDocumentFragment,\n\ttype ViewElement,\n\ttype ViewNode,\n\ttype ViewText\n} from 'ckeditor5/src/engine';\n\n/**\n * Transforms Word specific list-like elements to the semantic HTML lists.\n *\n * Lists in Word are represented by block elements with special attributes like:\n *\n * ```xml\n * <p class=MsoListParagraphCxSpFirst style='mso-list:l1 level1 lfo1'>...</p> // Paragraph based list.\n * <h1 style='mso-list:l0 level1 lfo1'>...</h1> // Heading 1 based list.\n * ```\n *\n * @param documentFragment The view structure to be transformed.\n * @param stylesString Styles from which list-like elements styling will be extracted.\n */\nexport function transformListItemLikeElementsIntoLists(\n\tdocumentFragment: ViewDocumentFragment,\n\tstylesString: string\n): void {\n\tif ( !documentFragment.childCount ) {\n\t\treturn;\n\t}\n\n\tconst writer = new UpcastWriter( documentFragment.document );\n\tconst itemLikeElements = findAllItemLikeElements( documentFragment, writer );\n\n\tif ( !itemLikeElements.length ) {\n\t\treturn;\n\t}\n\n\tlet currentList: ViewElement | null = null;\n\tlet currentIndentation = 1;\n\n\titemLikeElements.forEach( ( itemLikeElement, i ) => {\n\t\tconst isDifferentList = isNewListNeeded( itemLikeElements[ i - 1 ], itemLikeElement );\n\t\tconst previousItemLikeElement = isDifferentList ? null : itemLikeElements[ i - 1 ];\n\t\tconst indentationDifference = getIndentationDifference( previousItemLikeElement, itemLikeElement );\n\n\t\tif ( isDifferentList ) {\n\t\t\tcurrentList = null;\n\t\t\tcurrentIndentation = 1;\n\t\t}\n\n\t\tif ( !currentList || indentationDifference !== 0 ) {\n\t\t\tconst listStyle = detectListStyle( itemLikeElement, stylesString );\n\n\t\t\tif ( !currentList ) {\n\t\t\t\tcurrentList = insertNewEmptyList( listStyle, itemLikeElement.element, writer );\n\t\t\t} else if ( itemLikeElement.indent > currentIndentation ) {\n\t\t\t\tconst lastListItem = currentList.getChild( currentList.childCount - 1 ) as ViewElement;\n\t\t\t\tconst lastListItemChild = lastListItem!.getChild( lastListItem.childCount - 1 ) as ViewElement;\n\n\t\t\t\tcurrentList = insertNewEmptyList( listStyle, lastListItemChild, writer );\n\t\t\t\tcurrentIndentation += 1;\n\t\t\t} else if ( itemLikeElement.indent < currentIndentation ) {\n\t\t\t\tconst differentIndentation = currentIndentation - itemLikeElement.indent;\n\n\t\t\t\tcurrentList = findParentListAtLevel( currentList, differentIndentation );\n\t\t\t\tcurrentIndentation = itemLikeElement.indent;\n\t\t\t}\n\n\t\t\tif ( itemLikeElement.indent <= currentIndentation ) {\n\t\t\t\tif ( !currentList.is( 'element', listStyle.type ) ) {\n\t\t\t\t\tcurrentList = writer.rename( listStyle.type, currentList );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst listItem = transformElementIntoListItem( itemLikeElement.element, writer );\n\n\t\twriter.appendChild( listItem, currentList! );\n\t} );\n}\n\n/**\n * Removes paragraph wrapping content inside a list item.\n */\nexport function unwrapParagraphInListItem(\n\tdocumentFragment: ViewDocumentFragment,\n\twriter: UpcastWriter\n): void {\n\tfor ( const value of writer.createRangeIn( documentFragment ) ) {\n\t\tconst element = value.item;\n\n\t\tif ( element.is( 'element', 'li' ) ) {\n\t\t\t// Google Docs allows for single paragraph inside LI.\n\t\t\tconst firstChild = element.getChild( 0 );\n\n\t\t\tif ( firstChild && firstChild.is( 'element', 'p' ) ) {\n\t\t\t\twriter.unwrapElement( firstChild );\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Finds all list-like elements in a given document fragment.\n *\n * @param documentFragment Document fragment in which to look for list-like nodes.\n * @returns Array of found list-like items. Each item is an object containing:\n */\nfunction findAllItemLikeElements(\n\tdocumentFragment: ViewDocumentFragment,\n\twriter: UpcastWriter\n): Array<ListLikeElement> {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\t// Matcher for finding list-like elements.\n\tconst itemLikeElementsMatcher = new Matcher( {\n\t\tname: /^p|h\\d+$/,\n\t\tstyles: {\n\t\t\t'mso-list': /.*/\n\t\t}\n\t} );\n\n\tconst itemLikeElements: Array<ListLikeElement> = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.type === 'elementStart' && itemLikeElementsMatcher.match( value.item as ViewElement ) ) {\n\t\t\tconst itemData = getListItemData( value.item as ViewElement );\n\n\t\t\titemLikeElements.push( {\n\t\t\t\telement: value.item as ViewElement,\n\t\t\t\tid: itemData.id,\n\t\t\t\torder: itemData.order,\n\t\t\t\tindent: itemData.indent\n\t\t\t} );\n\t\t}\n\t}\n\n\treturn itemLikeElements;\n}\n\n/**\n * Extracts list item style from the provided CSS.\n *\n * List item style is extracted from the CSS stylesheet. Each list with its specific style attribute\n * value (`mso-list:l1 level1 lfo1`) has its dedicated properties in a CSS stylesheet defined with a selector like:\n *\n * ```css\n * @list l1:level1 { ... }\n * ```\n *\n * It contains `mso-level-number-format` property which defines list numbering/bullet style. If this property\n * is not defined it means default `decimal` numbering.\n *\n * Here CSS string representation is used as `mso-level-number-format` property is an invalid CSS property\n * and will be removed during CSS parsing.\n *\n * @param listLikeItem List-like item for which list style will be searched for. Usually\n * a result of `findAllItemLikeElements()` function.\n * @param stylesString CSS stylesheet.\n * @returns An object with properties:\n *\n * * type - List type, could be `ul` or `ol`.\n * * startIndex - List start index, valid only for ordered lists.\n * * style - List style, for example: `decimal`, `lower-roman`, etc. It is extracted\n *     directly from Word stylesheet and adjusted to represent proper values for the CSS `list-style-type` property.\n *     If it cannot be adjusted, the `null` value is returned.\n */\nfunction detectListStyle( listLikeItem: ListLikeElement, stylesString: string ) {\n\tconst listStyleRegexp = new RegExp( `@list l${ listLikeItem.id }:level${ listLikeItem.indent }\\\\s*({[^}]*)`, 'gi' );\n\tconst listStyleTypeRegex = /mso-level-number-format:([^;]{0,100});/gi;\n\tconst listStartIndexRegex = /mso-level-start-at:\\s{0,100}([0-9]{0,10})\\s{0,100};/gi;\n\n\tconst listStyleMatch = listStyleRegexp.exec( stylesString );\n\n\tlet listStyleType = 'decimal'; // Decimal is default one.\n\tlet type = 'ol'; // <ol> is default list.\n\tlet startIndex = null;\n\n\tif ( listStyleMatch && listStyleMatch[ 1 ] ) {\n\t\tconst listStyleTypeMatch = listStyleTypeRegex.exec( listStyleMatch[ 1 ] );\n\n\t\tif ( listStyleTypeMatch && listStyleTypeMatch[ 1 ] ) {\n\t\t\tlistStyleType = listStyleTypeMatch[ 1 ].trim();\n\t\t\ttype = listStyleType !== 'bullet' && listStyleType !== 'image' ? 'ol' : 'ul';\n\t\t}\n\n\t\t// Styles for the numbered lists are always defined in the Word CSS stylesheet.\n\t\t// Unordered lists MAY contain a value for the Word CSS definition `mso-level-text` but sometimes\n\t\t// this tag is missing. And because of that, we cannot depend on that. We need to predict the list style value\n\t\t// based on the list style marker element.\n\t\tif ( listStyleType === 'bullet' ) {\n\t\t\tconst bulletedStyle = findBulletedListStyle( listLikeItem.element );\n\n\t\t\tif ( bulletedStyle ) {\n\t\t\t\tlistStyleType = bulletedStyle;\n\t\t\t}\n\t\t} else {\n\t\t\tconst listStartIndexMatch = listStartIndexRegex.exec( listStyleMatch[ 1 ] );\n\n\t\t\tif ( listStartIndexMatch && listStartIndexMatch[ 1 ] ) {\n\t\t\t\tstartIndex = parseInt( listStartIndexMatch[ 1 ] );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn {\n\t\ttype,\n\t\tstartIndex,\n\t\tstyle: mapListStyleDefinition( listStyleType )\n\t};\n}\n\n/**\n * Tries to extract the `list-style-type` value based on the marker element for bulleted list.\n */\nfunction findBulletedListStyle( element: ViewElement ) {\n\tconst listMarkerElement = findListMarkerNode( element );\n\n\tif ( !listMarkerElement ) {\n\t\treturn null;\n\t}\n\n\tconst listMarker = listMarkerElement._data;\n\n\tif ( listMarker === 'o' ) {\n\t\treturn 'circle';\n\t} else if ( listMarker === '·' ) {\n\t\treturn 'disc';\n\t}\n\t// Word returns '§' instead of '■' for the square list style.\n\telse if ( listMarker === '§' ) {\n\t\treturn 'square';\n\t}\n\n\treturn null;\n}\n\n/**\n * Tries to find a text node that represents the marker element (list-style-type).\n */\nfunction findListMarkerNode( element: ViewElement ): ViewText | null {\n\t// If the first child is a text node, it is the data for the element.\n\t// The list-style marker is not present here.\n\tif ( element.getChild( 0 )!.is( '$text' ) ) {\n\t\treturn null;\n\t}\n\n\tfor ( const childNode of element.getChildren() ) {\n\t\t// The list-style marker will be inside the `<span>` element. Let's ignore all non-span elements.\n\t\t// It may happen that the `<a>` element is added as the first child. Most probably, it's an anchor element.\n\t\tif ( !childNode.is( 'element', 'span' ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst textNodeOrElement = childNode.getChild( 0 );\n\n\t\tif ( !textNodeOrElement ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// If already found the marker element, use it.\n\t\tif ( textNodeOrElement.is( '$text' ) ) {\n\t\t\treturn textNodeOrElement;\n\t\t}\n\n\t\treturn ( textNodeOrElement as any ).getChild( 0 );\n\t}\n\n\t/* istanbul ignore next -- @preserve */\n\treturn null;\n}\n\n/**\n * Parses the `list-style-type` value extracted directly from the Word CSS stylesheet and returns proper CSS definition.\n */\nfunction mapListStyleDefinition( value: string ) {\n\tif ( value.startsWith( 'arabic-leading-zero' ) ) {\n\t\treturn 'decimal-leading-zero';\n\t}\n\n\tswitch ( value ) {\n\t\tcase 'alpha-upper':\n\t\t\treturn 'upper-alpha';\n\t\tcase 'alpha-lower':\n\t\t\treturn 'lower-alpha';\n\t\tcase 'roman-upper':\n\t\t\treturn 'upper-roman';\n\t\tcase 'roman-lower':\n\t\t\treturn 'lower-roman';\n\t\tcase 'circle':\n\t\tcase 'disc':\n\t\tcase 'square':\n\t\t\treturn value;\n\t\tdefault:\n\t\t\treturn null;\n\t}\n}\n\n/**\n * Creates an empty list of a given type and inserts it after a specified element.\n *\n * @param listStyle List style object which determines the type of newly created list.\n * Usually a result of `detectListStyle()` function.\n * @param element Element after which list is inserted.\n * @returns Newly created list element.\n */\nfunction insertNewEmptyList(\n\tlistStyle: ReturnType<typeof detectListStyle>,\n\telement: ViewElement,\n\twriter: UpcastWriter\n) {\n\tconst parent = element.parent!;\n\tconst list = writer.createElement( listStyle.type );\n\tconst position = parent.getChildIndex( element ) + 1;\n\n\twriter.insertChild( position, list, parent );\n\n\t// We do not support modifying the marker for a particular list item.\n\t// Set the value for the `list-style-type` property directly to the list container.\n\tif ( listStyle.style ) {\n\t\twriter.setStyle( 'list-style-type', listStyle.style, list );\n\t}\n\n\tif ( listStyle.startIndex && listStyle.startIndex > 1 ) {\n\t\twriter.setAttribute( 'start', listStyle.startIndex, list );\n\t}\n\n\treturn list;\n}\n\n/**\n * Transforms a given element into a semantic list item. As the function operates on a provided\n * {module:engine/src/view/element~Element element} it will modify the view structure to which this element belongs.\n *\n * @param element Element which will be transformed into a list item.\n * @returns New element to which the given one was transformed. It is\n * inserted in place of the old element (the reference to the old element is lost due to renaming).\n */\nfunction transformElementIntoListItem( element: ViewElement, writer: UpcastWriter ) {\n\tremoveBulletElement( element, writer );\n\n\treturn writer.rename( 'li', element )!;\n}\n\n/**\n * Extracts list item information from Word specific list-like element style:\n *\n * ```\n * `style=\"mso-list:l1 level1 lfo1\"`\n * ```\n *\n * where:\n *\n * ```\n * * `l1` is a list id (however it does not mean this is a continuous list - see #43),\n * * `level1` is a list item indentation level,\n * * `lfo1` is a list insertion order in a document.\n * ```\n *\n * @param element Element from which style data is extracted.\n */\nfunction getListItemData( element: ViewElement ): ListItemData {\n\tconst data: ListItemData = {} as any;\n\tconst listStyle = element.getStyle( 'mso-list' );\n\n\tif ( listStyle ) {\n\t\tconst idMatch = listStyle.match( /(^|\\s{1,100})l(\\d+)/i );\n\t\tconst orderMatch = listStyle.match( /\\s{0,100}lfo(\\d+)/i );\n\t\tconst indentMatch = listStyle.match( /\\s{0,100}level(\\d+)/i );\n\n\t\tif ( idMatch && orderMatch && indentMatch ) {\n\t\t\tdata.id = idMatch[ 2 ];\n\t\t\tdata.order = orderMatch[ 1 ];\n\t\t\tdata.indent = parseInt( indentMatch[ 1 ] );\n\t\t}\n\t}\n\n\treturn data;\n}\n\n/**\n * Removes span with a numbering/bullet from a given element.\n */\nfunction removeBulletElement( element: ViewElement, writer: UpcastWriter ) {\n\t// Matcher for finding `span` elements holding lists numbering/bullets.\n\tconst bulletMatcher = new Matcher( {\n\t\tname: 'span',\n\t\tstyles: {\n\t\t\t'mso-list': 'Ignore'\n\t\t}\n\t} );\n\n\tconst range = writer.createRangeIn( element );\n\n\tfor ( const value of range ) {\n\t\tif ( value.type === 'elementStart' && bulletMatcher.match( value.item as ViewElement ) ) {\n\t\t\twriter.remove( value.item as ViewElement );\n\t\t}\n\t}\n}\n\n/**\n * Whether the previous and current items belong to the same list. It is determined based on `item.id`\n * (extracted from `mso-list` style, see #getListItemData) and a previous sibling of the current item.\n *\n * However, it's quite easy to change the `id` attribute for nested lists in Word. It will break the list feature while pasting.\n * Let's check also the `indent` attribute. If the difference between those two elements is equal to 1, we can assume that\n * the `currentItem` is a beginning of the nested list because lists in CKEditor 5 always start with the `indent=0` attribute.\n * See: https://github.com/ckeditor/ckeditor5/issues/7805.\n */\nfunction isNewListNeeded( previousItem: ListLikeElement, currentItem: ListLikeElement ) {\n\tif ( !previousItem ) {\n\t\treturn true;\n\t}\n\n\tif ( previousItem.id !== currentItem.id ) {\n\t\t// See: https://github.com/ckeditor/ckeditor5/issues/7805.\n\t\t//\n\t\t// * List item 1.\n\t\t//     - Nested list item 1.\n\t\tif ( currentItem.indent - previousItem.indent === 1 ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t}\n\n\tconst previousSibling = currentItem.element.previousSibling;\n\n\tif ( !previousSibling ) {\n\t\treturn true;\n\t}\n\n\t// Even with the same id the list does not have to be continuous (#43).\n\treturn !isList( previousSibling );\n}\n\nfunction isList( element: ViewNode ) {\n\treturn element.is( 'element', 'ol' ) || element.is( 'element', 'ul' );\n}\n\n/**\n * Calculates the indentation difference between two given list items (based on the indent attribute\n * extracted from the `mso-list` style, see #getListItemData).\n */\nfunction getIndentationDifference( previousItem: ListLikeElement | null, currentItem: ListLikeElement ) {\n\treturn previousItem ? currentItem.indent - previousItem.indent : currentItem.indent - 1;\n}\n\n/**\n * Finds the parent list element (ul/ol) of a given list element with indentation level lower by a given value.\n *\n * @param listElement List element from which to start looking for a parent list.\n * @param indentationDifference Indentation difference between lists.\n * @returns Found list element with indentation level lower by a given value.\n */\nfunction findParentListAtLevel( listElement: ViewElement, indentationDifference: number ) {\n\tconst ancestors = listElement.getAncestors( { parentFirst: true } );\n\n\tlet parentList = null;\n\tlet levelChange = 0;\n\n\tfor ( const ancestor of ancestors ) {\n\t\tif ( ancestor.is( 'element', 'ul' ) || ancestor.is( 'element', 'ol' ) ) {\n\t\t\tlevelChange++;\n\t\t}\n\n\t\tif ( levelChange === indentationDifference ) {\n\t\t\tparentList = ancestor;\n\t\t\tbreak;\n\t\t}\n\t}\n\n\treturn parentList as ViewElement;\n}\n\ninterface ListItemData {\n\n\t/**\n\t * Parent list id.\n\t */\n\tid: string;\n\n\t/**\n\t * List item creation order.\n\t */\n\torder: string;\n\n\t/**\n\t * List item indentation level.\n\t */\n\tindent: number;\n}\n\ninterface ListLikeElement extends ListItemData {\n\n\t/**\n\t * List-like element.\n\t */\n\telement: ViewElement;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/normalizers/googledocsnormalizer\n */\n\nimport { UpcastWriter, type ViewDocument } from 'ckeditor5/src/engine';\n\nimport removeBoldWrapper from '../filters/removeboldwrapper';\nimport transformBlockBrsToParagraphs from '../filters/br';\nimport { unwrapParagraphInListItem } from '../filters/list';\nimport type { Normalizer, NormalizerData } from '../normalizer';\n\nconst googleDocsMatch = /id=(\"|')docs-internal-guid-[-0-9a-f]+(\"|')/i;\n\n/**\n * Normalizer for the content pasted from Google Docs.\n */\nexport default class GoogleDocsNormalizer implements Normalizer {\n\tpublic readonly document: ViewDocument;\n\n\t/**\n\t * Creates a new `GoogleDocsNormalizer` instance.\n\t *\n\t * @param document View document.\n\t */\n\tconstructor( document: ViewDocument ) {\n\t\tthis.document = document;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic isActive( htmlString: string ): boolean {\n\t\treturn googleDocsMatch.test( htmlString );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic execute( data: NormalizerData ): void {\n\t\tconst writer = new UpcastWriter( this.document );\n\t\tconst { body: documentFragment } = data._parsedData;\n\n\t\tremoveBoldWrapper( documentFragment, writer );\n\t\tunwrapParagraphInListItem( documentFragment, writer );\n\t\ttransformBlockBrsToParagraphs( documentFragment, writer );\n\n\t\tdata.content = documentFragment;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/removeboldwrapper\n */\n\nimport type { UpcastWriter, ViewDocumentFragment } from 'ckeditor5/src/engine';\n\n/**\n * Removes `<b>` tag wrapper added by Google Docs to a copied content.\n *\n * @param documentFragment element `data.content` obtained from clipboard\n */\nexport default function removeBoldWrapper( documentFragment: ViewDocumentFragment, writer: UpcastWriter ): void {\n\tfor ( const child of documentFragment.getChildren() ) {\n\t\tif ( child.is( 'element', 'b' ) && child.getStyle( 'font-weight' ) === 'normal' ) {\n\t\t\tconst childIndex = documentFragment.getChildIndex( child );\n\n\t\t\twriter.remove( child );\n\t\t\twriter.insertChild( childIndex, child.getChildren(), documentFragment );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/image\n */\n\n/* globals btoa */\n\nimport {\n\tMatcher,\n\tUpcastWriter,\n\ttype ViewDocumentFragment,\n\ttype ViewElement,\n\ttype ViewNode\n} from 'ckeditor5/src/engine';\n\n/**\n * Replaces source attribute of all `<img>` elements representing regular\n * images (not the Word shapes) with inlined base64 image representation extracted from RTF or Blob data.\n *\n * @param documentFragment Document fragment on which transform images.\n * @param rtfData The RTF data from which images representation will be used.\n */\nexport function replaceImagesSourceWithBase64( documentFragment: ViewDocumentFragment, rtfData: string ): void {\n\tif ( !documentFragment.childCount ) {\n\t\treturn;\n\t}\n\n\tconst upcastWriter = new UpcastWriter( documentFragment.document );\n\tconst shapesIds = findAllShapesIds( documentFragment, upcastWriter );\n\n\tremoveAllImgElementsRepresentingShapes( shapesIds, documentFragment, upcastWriter );\n\tinsertMissingImgs( shapesIds, documentFragment, upcastWriter );\n\tremoveAllShapeElements( documentFragment, upcastWriter );\n\n\tconst images = findAllImageElementsWithLocalSource( documentFragment, upcastWriter );\n\n\tif ( images.length ) {\n\t\treplaceImagesFileSourceWithInlineRepresentation( images, extractImageDataFromRtf( rtfData ), upcastWriter );\n\t}\n}\n\n/**\n * Converts given HEX string to base64 representation.\n *\n * @internal\n * @param hexString The HEX string to be converted.\n * @returns Base64 representation of a given HEX string.\n */\nexport function _convertHexToBase64( hexString: string ): string {\n\treturn btoa( hexString.match( /\\w{2}/g )!.map( char => {\n\t\treturn String.fromCharCode( parseInt( char, 16 ) );\n\t} ).join( '' ) );\n}\n\n/**\n * Finds all shapes (`<v:*>...</v:*>`) ids. Shapes can represent images (canvas)\n * or Word shapes (which does not have RTF or Blob representation).\n *\n * @param documentFragment Document fragment from which to extract shape ids.\n * @returns Array of shape ids.\n */\nfunction findAllShapesIds( documentFragment: ViewDocumentFragment, writer: UpcastWriter ): Array<string> {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst shapeElementsMatcher = new Matcher( {\n\t\tname: /v:(.+)/\n\t} );\n\n\tconst shapesIds = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.type != 'elementStart' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst el = value.item as ViewElement;\n\t\tconst previousSibling = el.previousSibling;\n\t\tconst prevSiblingName = previousSibling && previousSibling.is( 'element' ) ? previousSibling.name : null;\n\n\t\t// If shape element have 'o:gfxdata' attribute and is not directly before `<v:shapetype>` element it means it represent Word shape.\n\t\tif ( shapeElementsMatcher.match( el ) && el.getAttribute( 'o:gfxdata' ) && prevSiblingName !== 'v:shapetype' ) {\n\t\t\tshapesIds.push( ( value.item as ViewElement ).getAttribute( 'id' )! );\n\t\t}\n\t}\n\n\treturn shapesIds;\n}\n\n/**\n * Removes all `<img>` elements which represents Word shapes and not regular images.\n *\n * @param shapesIds Shape ids which will be checked against `<img>` elements.\n * @param documentFragment Document fragment from which to remove `<img>` elements.\n */\nfunction removeAllImgElementsRepresentingShapes(\n\tshapesIds: Array<string>,\n\tdocumentFragment: ViewDocumentFragment,\n\twriter: UpcastWriter\n): void {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst imageElementsMatcher = new Matcher( {\n\t\tname: 'img'\n\t} );\n\n\tconst imgs = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.item.is( 'element' ) && imageElementsMatcher.match( value.item ) ) {\n\t\t\tconst el = value.item;\n\t\t\tconst shapes = el.getAttribute( 'v:shapes' ) ? el.getAttribute( 'v:shapes' )!.split( ' ' ) : [];\n\n\t\t\tif ( shapes.length && shapes.every( shape => shapesIds.indexOf( shape ) > -1 ) ) {\n\t\t\t\timgs.push( el );\n\t\t\t// Shapes may also have empty source while content is paste in some browsers (Safari).\n\t\t\t} else if ( !el.getAttribute( 'src' ) ) {\n\t\t\t\timgs.push( el );\n\t\t\t}\n\t\t}\n\t}\n\n\tfor ( const img of imgs ) {\n\t\twriter.remove( img );\n\t}\n}\n\n/**\n * Removes all shape elements (`<v:*>...</v:*>`) so they do not pollute the output structure.\n *\n * @param documentFragment Document fragment from which to remove shape elements.\n */\nfunction removeAllShapeElements( documentFragment: ViewDocumentFragment, writer: UpcastWriter ) {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst shapeElementsMatcher = new Matcher( {\n\t\tname: /v:(.+)/\n\t} );\n\n\tconst shapes = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.type == 'elementStart' && shapeElementsMatcher.match( value.item as ViewElement ) ) {\n\t\t\tshapes.push( value.item as ViewElement );\n\t\t}\n\t}\n\n\tfor ( const shape of shapes ) {\n\t\twriter.remove( shape );\n\t}\n}\n\n/**\n * Inserts `img` tags if there is none after a shape.\n */\nfunction insertMissingImgs( shapeIds: Array<string>, documentFragment: ViewDocumentFragment, writer: UpcastWriter ) {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst shapes: Array<ViewElement> = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.type == 'elementStart' && value.item.is( 'element', 'v:shape' ) ) {\n\t\t\tconst id = value.item.getAttribute( 'id' )!;\n\n\t\t\tif ( shapeIds.includes( id ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( !containsMatchingImg( value.item.parent!.getChildren(), id ) ) {\n\t\t\t\tshapes.push( value.item );\n\t\t\t}\n\t\t}\n\t}\n\n\tfor ( const shape of shapes ) {\n\t\tconst attrs: Record<string, unknown> = {\n\t\t\tsrc: findSrc( shape )\n\t\t};\n\n\t\tif ( shape.hasAttribute( 'alt' ) ) {\n\t\t\tattrs.alt = shape.getAttribute( 'alt' );\n\t\t}\n\n\t\tconst img = writer.createElement( 'img', attrs );\n\n\t\twriter.insertChild( shape.index! + 1, img, shape.parent! );\n\t}\n\n\tfunction containsMatchingImg( nodes: Iterable<ViewNode>, id: string ): boolean {\n\t\tfor ( const node of nodes ) {\n\t\t\t/* istanbul ignore else -- @preserve */\n\t\t\tif ( node.is( 'element' ) ) {\n\t\t\t\tif ( node.name == 'img' && node.getAttribute( 'v:shapes' ) == id ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tif ( containsMatchingImg( node.getChildren(), id ) ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n\n\tfunction findSrc( shape: ViewElement ) {\n\t\tfor ( const child of shape.getChildren() ) {\n\t\t\t/* istanbul ignore else -- @preserve */\n\t\t\tif ( child.is( 'element' ) && child.getAttribute( 'src' ) ) {\n\t\t\t\treturn child.getAttribute( 'src' );\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Finds all `<img>` elements in a given document fragment which have source pointing to local `file://` resource.\n *\n * @param documentFragment Document fragment in which to look for `<img>` elements.\n * @returns result All found images grouped by source type.\n */\nfunction findAllImageElementsWithLocalSource(\n\tdocumentFragment: ViewDocumentFragment,\n\twriter: UpcastWriter\n): Array<ViewElement> {\n\tconst range = writer.createRangeIn( documentFragment );\n\n\tconst imageElementsMatcher = new Matcher( {\n\t\tname: 'img'\n\t} );\n\n\tconst imgs = [];\n\n\tfor ( const value of range ) {\n\t\tif ( value.item.is( 'element' ) && imageElementsMatcher.match( value.item ) ) {\n\t\t\tif ( value.item.getAttribute( 'src' )!.startsWith( 'file://' ) ) {\n\t\t\t\timgs.push( value.item );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn imgs;\n}\n\n/**\n * Extracts all images HEX representations from a given RTF data.\n *\n * @param rtfData The RTF data from which to extract images HEX representation.\n * @returns Array of found HEX representations. Each array item is an object containing:\n *\n * * hex Image representation in HEX format.\n * * type Type of image, `image/png` or `image/jpeg`.\n */\nfunction extractImageDataFromRtf( rtfData: string ): Array<{ hex: string; type: string }> {\n\tif ( !rtfData ) {\n\t\treturn [];\n\t}\n\n\tconst regexPictureHeader = /{\\\\pict[\\s\\S]+?\\\\bliptag-?\\d+(\\\\blipupi-?\\d+)?({\\\\\\*\\\\blipuid\\s?[\\da-fA-F]+)?[\\s}]*?/;\n\tconst regexPicture = new RegExp( '(?:(' + regexPictureHeader.source + '))([\\\\da-fA-F\\\\s]+)\\\\}', 'g' );\n\tconst images = rtfData.match( regexPicture );\n\tconst result = [];\n\n\tif ( images ) {\n\t\tfor ( const image of images ) {\n\t\t\tlet imageType: string | false = false;\n\n\t\t\tif ( image.includes( '\\\\pngblip' ) ) {\n\t\t\t\timageType = 'image/png';\n\t\t\t} else if ( image.includes( '\\\\jpegblip' ) ) {\n\t\t\t\timageType = 'image/jpeg';\n\t\t\t}\n\n\t\t\tif ( imageType ) {\n\t\t\t\tresult.push( {\n\t\t\t\t\thex: image.replace( regexPictureHeader, '' ).replace( /[^\\da-fA-F]/g, '' ),\n\t\t\t\t\ttype: imageType\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn result;\n}\n\n/**\n * Replaces `src` attribute value of all given images with the corresponding base64 image representation.\n *\n * @param imageElements Array of image elements which will have its source replaced.\n * @param imagesHexSources Array of images hex sources (usually the result of `extractImageDataFromRtf()` function).\n * The array should be the same length as `imageElements` parameter.\n */\nfunction replaceImagesFileSourceWithInlineRepresentation(\n\timageElements: Array<ViewElement>,\n\timagesHexSources: ReturnType<typeof extractImageDataFromRtf>,\n\twriter: UpcastWriter\n) {\n\t// Assume there is an equal amount of image elements and images HEX sources so they can be matched accordingly based on existing order.\n\tif ( imageElements.length === imagesHexSources.length ) {\n\t\tfor ( let i = 0; i < imageElements.length; i++ ) {\n\t\t\tconst newSrc = `data:${ imagesHexSources[ i ].type };base64,${ _convertHexToBase64( imagesHexSources[ i ].hex ) }`;\n\t\t\twriter.setAttribute( 'src', newSrc, imageElements[ i ] );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/normalizers/mswordnormalizer\n */\n\nimport { transformListItemLikeElementsIntoLists } from '../filters/list';\nimport { replaceImagesSourceWithBase64 } from '../filters/image';\nimport type { Normalizer, NormalizerData } from '../normalizer';\n\nimport type { ViewDocument } from 'ckeditor5/src/engine';\n\nconst msWordMatch1 = /<meta\\s*name=\"?generator\"?\\s*content=\"?microsoft\\s*word\\s*\\d+\"?\\/?>/i;\nconst msWordMatch2 = /xmlns:o=\"urn:schemas-microsoft-com/i;\n\n/**\n * Normalizer for the content pasted from Microsoft Word.\n */\nexport default class MSWordNormalizer implements Normalizer {\n\tpublic readonly document: ViewDocument;\n\n\t/**\n\t * Creates a new `MSWordNormalizer` instance.\n\t *\n\t * @param document View document.\n\t */\n\tconstructor( document: ViewDocument ) {\n\t\tthis.document = document;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic isActive( htmlString: string ): boolean {\n\t\treturn msWordMatch1.test( htmlString ) || msWordMatch2.test( htmlString );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic execute( data: NormalizerData ): void {\n\t\tconst { body: documentFragment, stylesString } = data._parsedData;\n\n\t\ttransformListItemLikeElementsIntoLists( documentFragment, stylesString );\n\t\treplaceImagesSourceWithBase64( documentFragment, data.dataTransfer.getData( 'text/rtf' ) );\n\n\t\tdata.content = documentFragment;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/space\n */\n\n/**\n * Replaces last space preceding elements closing tag with `&nbsp;`. Such operation prevents spaces from being removed\n * during further DOM/View processing (see especially {@link module:engine/view/domconverter~DomConverter#_processDataFromDomText}).\n * This method also takes into account Word specific `<o:p></o:p>` empty tags.\n * Additionally multiline sequences of spaces and new lines between tags are removed (see #39 and #40).\n *\n * @param htmlString HTML string in which spacing should be normalized.\n * @returns Input HTML with spaces normalized.\n */\nexport function normalizeSpacing( htmlString: string ): string {\n\t// Run normalizeSafariSpaceSpans() two times to cover nested spans.\n\treturn normalizeSafariSpaceSpans( normalizeSafariSpaceSpans( htmlString ) )\n\t\t// Remove all \\r\\n from \"spacerun spans\" so the last replace line doesn't strip all whitespaces.\n\t\t.replace( /(<span\\s+style=['\"]mso-spacerun:yes['\"]>[^\\S\\r\\n]*?)[\\r\\n]+([^\\S\\r\\n]*<\\/span>)/g, '$1$2' )\n\t\t.replace( /<span\\s+style=['\"]mso-spacerun:yes['\"]><\\/span>/g, '' )\n\t\t.replace( / <\\//g, '\\u00A0</' )\n\t\t.replace( / <o:p><\\/o:p>/g, '\\u00A0<o:p></o:p>' )\n\t\t// Remove <o:p> block filler from empty paragraph. Safari uses \\u00A0 instead of &nbsp;.\n\t\t.replace( /<o:p>(&nbsp;|\\u00A0)<\\/o:p>/g, '' )\n\t\t// Remove all whitespaces when they contain any \\r or \\n.\n\t\t.replace( />([^\\S\\r\\n]*[\\r\\n]\\s*)</g, '><' );\n}\n\n/**\n * Normalizes spacing in special Word `spacerun spans` (`<span style='mso-spacerun:yes'>\\s+</span>`) by replacing\n * all spaces with `&nbsp; ` pairs. This prevents spaces from being removed during further DOM/View processing\n * (see especially {@link module:engine/view/domconverter~DomConverter#_processDataFromDomText}).\n *\n * @param htmlDocument Native `Document` object in which spacing should be normalized.\n */\nexport function normalizeSpacerunSpans( htmlDocument: Document ): void {\n\thtmlDocument.querySelectorAll( 'span[style*=spacerun]' ).forEach( el => {\n\t\tconst htmlElement = el as HTMLElement;\n\t\tconst innerTextLength = htmlElement.innerText.length || 0;\n\n\t\thtmlElement.innerText = Array( innerTextLength + 1 ).join( '\\u00A0 ' ).substr( 0, innerTextLength );\n\t} );\n}\n\n/**\n * Normalizes specific spacing generated by Safari when content pasted from Word (`<span class=\"Apple-converted-space\"> </span>`)\n * by replacing all spaces sequences longer than 1 space with `&nbsp; ` pairs. This prevents spaces from being removed during\n * further DOM/View processing (see especially {@link module:engine/view/domconverter~DomConverter#_processDataFromDomText}).\n *\n * This function is similar to {@link module:clipboard/utils/normalizeclipboarddata normalizeClipboardData util} but uses\n * regular spaces / &nbsp; sequence for replacement.\n *\n * @param htmlString HTML string in which spacing should be normalized\n * @returns Input HTML with spaces normalized.\n */\nfunction normalizeSafariSpaceSpans( htmlString: string ) {\n\treturn htmlString.replace( /<span(?: class=\"Apple-converted-space\"|)>(\\s+)<\\/span>/g, ( fullMatch, spaces ) => {\n\t\treturn spaces.length === 1 ? ' ' : Array( spaces.length + 1 ).join( '\\u00A0 ' ).substr( 0, spaces.length );\n\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/filters/parse\n */\n\n/* globals DOMParser */\n\nimport {\n\tDomConverter,\n\tViewDocument,\n\ttype StylesProcessor,\n\ttype ViewDocumentFragment\n} from 'ckeditor5/src/engine';\n\nimport { normalizeSpacing, normalizeSpacerunSpans } from './space';\n\n/**\n * Parses provided HTML extracting contents of `<body>` and `<style>` tags.\n *\n * @param htmlString HTML string to be parsed.\n */\nexport function parseHtml( htmlString: string, stylesProcessor: StylesProcessor ): ParseHtmlResult {\n\tconst domParser = new DOMParser();\n\n\t// Remove Word specific \"if comments\" so content inside is not omitted by the parser.\n\thtmlString = htmlString.replace( /<!--\\[if gte vml 1]>/g, '' );\n\n\tconst normalizedHtml = normalizeSpacing( cleanContentAfterBody( htmlString ) );\n\n\t// Parse htmlString as native Document object.\n\tconst htmlDocument = domParser.parseFromString( normalizedHtml, 'text/html' );\n\n\tnormalizeSpacerunSpans( htmlDocument );\n\n\t// Get `innerHTML` first as transforming to View modifies the source document.\n\tconst bodyString = htmlDocument.body.innerHTML;\n\n\t// Transform document.body to View.\n\tconst bodyView = documentToView( htmlDocument, stylesProcessor );\n\n\t// Extract stylesheets.\n\tconst stylesObject = extractStyles( htmlDocument );\n\n\treturn {\n\t\tbody: bodyView,\n\t\tbodyString,\n\t\tstyles: stylesObject.styles,\n\t\tstylesString: stylesObject.stylesString\n\t};\n}\n\n/**\n * The result of {@link ~parseHtml}.\n */\nexport interface ParseHtmlResult {\n\n\t/**\n\t * Parsed body content as a traversable structure.\n\t */\n\tbody: ViewDocumentFragment;\n\n\t/**\n\t * Entire body content as a string.\n\t */\n\tbodyString: string;\n\n\t/**\n\t * Array of native `CSSStyleSheet` objects, each representing separate `style` tag from the source HTML.\n\t */\n\tstyles: Array<CSSStyleSheet>;\n\n\t/**\n\t * All `style` tags contents combined in the order of occurrence into one string.\n\t */\n\tstylesString: string;\n}\n\n/**\n * Transforms native `Document` object into {@link module:engine/view/documentfragment~DocumentFragment}. Comments are skipped.\n *\n * @param htmlDocument Native `Document` object to be transformed.\n */\nfunction documentToView( htmlDocument: Document, stylesProcessor: StylesProcessor ) {\n\tconst viewDocument = new ViewDocument( stylesProcessor );\n\tconst domConverter = new DomConverter( viewDocument, { renderingMode: 'data' } );\n\tconst fragment = htmlDocument.createDocumentFragment();\n\tconst nodes = htmlDocument.body.childNodes;\n\n\twhile ( nodes.length > 0 ) {\n\t\tfragment.appendChild( nodes[ 0 ] );\n\t}\n\n\treturn domConverter.domToView( fragment, { skipComments: true } ) as ViewDocumentFragment;\n}\n\n/**\n * Extracts both `CSSStyleSheet` and string representation from all `style` elements available in a provided `htmlDocument`.\n *\n * @param htmlDocument Native `Document` object from which styles will be extracted.\n */\nfunction extractStyles( htmlDocument: Document ): { styles: Array<CSSStyleSheet>; stylesString: string } {\n\tconst styles = [];\n\tconst stylesString = [];\n\tconst styleTags = Array.from( htmlDocument.getElementsByTagName( 'style' ) );\n\n\tfor ( const style of styleTags ) {\n\t\tif ( style.sheet && style.sheet.cssRules && style.sheet.cssRules.length ) {\n\t\t\tstyles.push( style.sheet );\n\t\t\tstylesString.push( style.innerHTML );\n\t\t}\n\t}\n\n\treturn {\n\t\tstyles,\n\t\tstylesString: stylesString.join( ' ' )\n\t};\n}\n\n/**\n * Removes leftover content from between closing </body> and closing </html> tag:\n *\n * ```html\n * <html><body><p>Foo Bar</p></body><span>Fo</span></html> -> <html><body><p>Foo Bar</p></body></html>\n * ```\n *\n * This function is used as specific browsers (Edge) add some random content after `body` tag when pasting from Word.\n * @param htmlString The HTML string to be cleaned.\n * @returns The HTML string with leftover content removed.\n */\nfunction cleanContentAfterBody( htmlString: string ) {\n\tconst bodyCloseTag = '</body>';\n\tconst htmlCloseTag = '</html>';\n\n\tconst bodyCloseIndex = htmlString.indexOf( bodyCloseTag );\n\n\tif ( bodyCloseIndex < 0 ) {\n\t\treturn htmlString;\n\t}\n\n\tconst htmlCloseIndex = htmlString.indexOf( htmlCloseTag, bodyCloseIndex + bodyCloseTag.length );\n\n\treturn htmlString.substring( 0, bodyCloseIndex + bodyCloseTag.length ) +\n\t\t( htmlCloseIndex >= 0 ? htmlString.substring( htmlCloseIndex ) : '' );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/tableproperties\n */\n\nimport type { Conversion, ViewElement } from 'ckeditor5/src/engine';\n\n/**\n * Conversion helper for upcasting attributes using normalized styles.\n *\n * @param options.modelAttribute The attribute to set.\n * @param options.styleName The style name to convert.\n * @param options.viewElement The view element name that should be converted.\n * @param options.defaultValue The default value for the specified `modelAttribute`.\n * @param options.shouldUpcast The function which returns `true` if style should be upcasted from this element.\n */\nexport function upcastStyleToAttribute(\n\tconversion: Conversion,\n\toptions: {\n\t\tmodelAttribute: string;\n\t\tstyleName: string;\n\t\tviewElement: string | RegExp;\n\t\tdefaultValue: string;\n\t\treduceBoxSides?: boolean;\n\t\tshouldUpcast?: ( viewElement: ViewElement ) => boolean;\n\t}\n): void {\n\tconst {\n\t\tmodelAttribute,\n\t\tstyleName,\n\t\tviewElement,\n\t\tdefaultValue,\n\t\treduceBoxSides = false,\n\t\tshouldUpcast = () => true\n\t} = options;\n\n\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\tview: {\n\t\t\tname: viewElement,\n\t\t\tstyles: {\n\t\t\t\t[ styleName ]: /[\\s\\S]+/\n\t\t\t}\n\t\t},\n\t\tmodel: {\n\t\t\tkey: modelAttribute,\n\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\tif ( !shouldUpcast( viewElement ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst normalized = viewElement.getNormalizedStyle( styleName ) as Record<Side, string>;\n\t\t\t\tconst value = reduceBoxSides ? reduceBoxSidesValue( normalized ) : normalized;\n\n\t\t\t\tif ( defaultValue !== value ) {\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t} );\n}\n\nexport interface StyleValues {\n\tcolor: string;\n\tstyle: string;\n\twidth: string;\n}\n\n/**\n * Conversion helper for upcasting border styles for view elements.\n *\n * @param defaultBorder The default border values.\n * @param defaultBorder.color The default `borderColor` value.\n * @param defaultBorder.style The default `borderStyle` value.\n * @param defaultBorder.width The default `borderWidth` value.\n */\nexport function upcastBorderStyles(\n\tconversion: Conversion,\n\tviewElementName: string,\n\tmodelAttributes: StyleValues,\n\tdefaultBorder: StyleValues\n): void {\n\tconversion.for( 'upcast' ).add( dispatcher => dispatcher.on( 'element:' + viewElementName, ( evt, data, conversionApi ) => {\n\t\t// If the element was not converted by element-to-element converter,\n\t\t// we should not try to convert the style. See #8393.\n\t\tif ( !data.modelRange ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Check the most detailed properties. These will be always set directly or\n\t\t// when using the \"group\" properties like: `border-(top|right|bottom|left)` or `border`.\n\t\tconst stylesToConsume = [\n\t\t\t'border-top-width',\n\t\t\t'border-top-color',\n\t\t\t'border-top-style',\n\t\t\t'border-bottom-width',\n\t\t\t'border-bottom-color',\n\t\t\t'border-bottom-style',\n\t\t\t'border-right-width',\n\t\t\t'border-right-color',\n\t\t\t'border-right-style',\n\t\t\t'border-left-width',\n\t\t\t'border-left-color',\n\t\t\t'border-left-style'\n\t\t].filter( styleName => data.viewItem.hasStyle( styleName ) );\n\n\t\tif ( !stylesToConsume.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst matcherPattern = {\n\t\t\tstyles: stylesToConsume\n\t\t};\n\n\t\t// Try to consume appropriate values from consumable values list.\n\t\tif ( !conversionApi.consumable.test( data.viewItem, matcherPattern ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst modelElement = [ ...data.modelRange.getItems( { shallow: true } ) ].pop();\n\n\t\tconversionApi.consumable.consume( data.viewItem, matcherPattern );\n\n\t\tconst normalizedBorder = {\n\t\t\tstyle: data.viewItem.getNormalizedStyle( 'border-style' ),\n\t\t\tcolor: data.viewItem.getNormalizedStyle( 'border-color' ),\n\t\t\twidth: data.viewItem.getNormalizedStyle( 'border-width' )\n\t\t};\n\n\t\tconst reducedBorder = {\n\t\t\tstyle: reduceBoxSidesValue( normalizedBorder.style ),\n\t\t\tcolor: reduceBoxSidesValue( normalizedBorder.color ),\n\t\t\twidth: reduceBoxSidesValue( normalizedBorder.width )\n\t\t};\n\n\t\tif ( reducedBorder.style !== defaultBorder.style ) {\n\t\t\tconversionApi.writer.setAttribute( modelAttributes.style, reducedBorder.style, modelElement );\n\t\t}\n\n\t\tif ( reducedBorder.color !== defaultBorder.color ) {\n\t\t\tconversionApi.writer.setAttribute( modelAttributes.color, reducedBorder.color, modelElement );\n\t\t}\n\n\t\tif ( reducedBorder.width !== defaultBorder.width ) {\n\t\t\tconversionApi.writer.setAttribute( modelAttributes.width, reducedBorder.width, modelElement );\n\t\t}\n\t} ) );\n}\n\n/**\n * Conversion helper for downcasting an attribute to a style.\n */\nexport function downcastAttributeToStyle(\n\tconversion: Conversion,\n\toptions: {\n\t\tmodelElement: string;\n\t\tmodelAttribute: string;\n\t\tstyleName: string;\n\t}\n): void {\n\tconst { modelElement, modelAttribute, styleName } = options;\n\n\tconversion.for( 'downcast' ).attributeToAttribute( {\n\t\tmodel: {\n\t\t\tname: modelElement,\n\t\t\tkey: modelAttribute\n\t\t},\n\t\tview: modelAttributeValue => ( {\n\t\t\tkey: 'style',\n\t\t\tvalue: {\n\t\t\t\t[ styleName ]: modelAttributeValue\n\t\t\t}\n\t\t} )\n\t} );\n}\n\n/**\n * Conversion helper for downcasting attributes from the model table to a view table (not to `<figure>`).\n */\nexport function downcastTableAttribute(\n\tconversion: Conversion,\n\toptions: {\n\t\tmodelAttribute: string;\n\t\tstyleName: string;\n\t}\n): void {\n\tconst { modelAttribute, styleName } = options;\n\n\tconversion.for( 'downcast' ).add( dispatcher => dispatcher.on( `attribute:${ modelAttribute }:table`, ( evt, data, conversionApi ) => {\n\t\tconst { item, attributeNewValue } = data;\n\t\tconst { mapper, writer } = conversionApi;\n\n\t\tif ( !conversionApi.consumable.consume( data.item, evt.name ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst table = [ ...mapper.toViewElement( item ).getChildren() ].find( child => child.is( 'element', 'table' ) );\n\n\t\tif ( attributeNewValue ) {\n\t\t\twriter.setStyle( styleName, attributeNewValue, table );\n\t\t} else {\n\t\t\twriter.removeStyle( styleName, table );\n\t\t}\n\t} ) );\n}\n\ntype Side = 'top' | 'right' | 'bottom' | 'left';\ntype Style = Record<Side, string>;\n\n/**\n * Reduces the full top, right, bottom, left object to a single string if all sides are equal.\n * Returns original style otherwise.\n */\nfunction reduceBoxSidesValue( style?: Style ): undefined | string | Style {\n\tif ( !style ) {\n\t\treturn;\n\t}\n\tconst sides: Array<Side> = [ 'top', 'right', 'bottom', 'left' ];\n\tconst allSidesDefined = sides.every( side => style[ side ] );\n\n\tif ( !allSidesDefined ) {\n\t\treturn style;\n\t}\n\n\tconst topSideStyle = style.top;\n\tconst allSidesEqual = sides.every( side => style[ side ] === topSideStyle );\n\n\tif ( !allSidesEqual ) {\n\t\treturn style;\n\t}\n\n\treturn topSideStyle;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/common\n */\n\nimport type {\n\tConversion,\n\tElement,\n\tItem,\n\tPosition,\n\tSchema,\n\tWriter\n} from 'ckeditor5/src/engine';\n\nimport { downcastAttributeToStyle, upcastStyleToAttribute } from './../converters/tableproperties';\nimport type TableUtils from '../tableutils';\n\n/**\n * A common method to update the numeric value. If a value is the default one, it will be unset.\n *\n * @param key An attribute key.\n * @param value The new attribute value.\n * @param item A model item on which the attribute will be set.\n * @param defaultValue The default attribute value. If a value is lower or equal, it will be unset.\n */\nexport function updateNumericAttribute( key: string, value: unknown, item: Item, writer: Writer, defaultValue: unknown = 1 ): void {\n\tif ( value !== undefined && value !== null && defaultValue !== undefined && defaultValue !== null && value > defaultValue ) {\n\t\twriter.setAttribute( key, value, item );\n\t} else {\n\t\twriter.removeAttribute( key, item );\n\t}\n}\n\n/**\n * A common method to create an empty table cell. It creates a proper model structure as a table cell must have at least one block inside.\n *\n * @param writer The model writer.\n * @param insertPosition The position at which the table cell should be inserted.\n * @param attributes The element attributes.\n * @returns Created table cell.\n */\nexport function createEmptyTableCell( writer: Writer, insertPosition: Position, attributes: Record<string, unknown> = {} ): Element {\n\tconst tableCell = writer.createElement( 'tableCell', attributes );\n\n\twriter.insertElement( 'paragraph', tableCell );\n\twriter.insert( tableCell, insertPosition );\n\n\treturn tableCell;\n}\n\n/**\n * Checks if a table cell belongs to the heading column section.\n */\nexport function isHeadingColumnCell( tableUtils: TableUtils, tableCell: Element ): boolean {\n\tconst table = tableCell.parent!.parent as Element;\n\tconst headingColumns = parseInt( table.getAttribute( 'headingColumns' ) as string || '0' );\n\tconst { column } = tableUtils.getCellLocation( tableCell );\n\n\treturn !!headingColumns && column < headingColumns;\n}\n\n/**\n * Enables conversion for an attribute for simple view-model mappings.\n *\n * @param options.defaultValue The default value for the specified `modelAttribute`.\n */\nexport function enableProperty(\n\tschema: Schema,\n\tconversion: Conversion,\n\toptions: {\n\t\tmodelAttribute: string;\n\t\tstyleName: string;\n\t\tdefaultValue: string;\n\t\treduceBoxSides?: boolean;\n\t}\n): void {\n\tconst { modelAttribute } = options;\n\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: [ modelAttribute ]\n\t} );\n\n\tupcastStyleToAttribute( conversion, { viewElement: /^(td|th)$/, ...options } );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', ...options } );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/upcasttable\n */\n\nimport type { Element, UpcastDispatcher, UpcastElementEvent, ViewElement, ViewNode } from 'ckeditor5/src/engine';\n\nimport { createEmptyTableCell } from '../utils/common';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * Returns a function that converts the table view representation:\n *\n * ```xml\n * <figure class=\"table\"><table>...</table></figure>\n * ```\n *\n * to the model representation:\n *\n * ```xml\n * <table></table>\n * ```\n */\nexport function upcastTableFigure() {\n\treturn ( dispatcher: UpcastDispatcher ): void => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element:figure', ( evt, data, conversionApi ) => {\n\t\t\t// Do not convert if this is not a \"table figure\".\n\t\t\tif ( !conversionApi.consumable.test( data.viewItem, { name: true, classes: 'table' } ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Find a table element inside the figure element.\n\t\t\tconst viewTable = getViewTableFromFigure( data.viewItem );\n\n\t\t\t// Do not convert if table element is absent or was already converted.\n\t\t\tif ( !viewTable || !conversionApi.consumable.test( viewTable, { name: true } ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Consume the figure to prevent other converters from processing it again.\n\t\t\tconversionApi.consumable.consume( data.viewItem, { name: true, classes: 'table' } );\n\n\t\t\t// Convert view table to model table.\n\t\t\tconst conversionResult = conversionApi.convertItem( viewTable, data.modelCursor );\n\n\t\t\t// Get table element from conversion result.\n\t\t\tconst modelTable = first( conversionResult.modelRange!.getItems() as Iterator<Element> );\n\n\t\t\t// When table wasn't successfully converted then finish conversion.\n\t\t\tif ( !modelTable ) {\n\t\t\t\t// Revert consumed figure so other features can convert it.\n\t\t\t\tconversionApi.consumable.revert( data.viewItem, { name: true, classes: 'table' } );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconversionApi.convertChildren( data.viewItem, conversionApi.writer.createPositionAt( modelTable, 'end' ) );\n\t\t\tconversionApi.updateConversionResult( modelTable, data );\n\t\t} );\n\t};\n}\n\n/**\n * View table element to model table element conversion helper.\n *\n * This conversion helper converts the table element as well as table rows.\n *\n * @returns Conversion helper.\n */\nexport default function upcastTable() {\n\treturn ( dispatcher: UpcastDispatcher ): void => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element:table', ( evt, data, conversionApi ) => {\n\t\t\tconst viewTable = data.viewItem;\n\n\t\t\t// When element was already consumed then skip it.\n\t\t\tif ( !conversionApi.consumable.test( viewTable, { name: true } ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { rows, headingRows, headingColumns } = scanTable( viewTable );\n\n\t\t\t// Only set attributes if values is greater then 0.\n\t\t\tconst attributes: { headingColumns?: number; headingRows?: number } = {};\n\n\t\t\tif ( headingColumns ) {\n\t\t\t\tattributes.headingColumns = headingColumns;\n\t\t\t}\n\n\t\t\tif ( headingRows ) {\n\t\t\t\tattributes.headingRows = headingRows;\n\t\t\t}\n\n\t\t\tconst table = conversionApi.writer.createElement( 'table', attributes );\n\n\t\t\tif ( !conversionApi.safeInsert( table, data.modelCursor ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconversionApi.consumable.consume( viewTable, { name: true } );\n\n\t\t\t// Upcast table rows in proper order (heading rows first).\n\t\t\trows.forEach( row => conversionApi.convertItem( row, conversionApi.writer.createPositionAt( table, 'end' ) ) );\n\n\t\t\t// Convert everything else.\n\t\t\tconversionApi.convertChildren( viewTable, conversionApi.writer.createPositionAt( table, 'end' ) );\n\n\t\t\t// Create one row and one table cell for empty table.\n\t\t\tif ( table.isEmpty ) {\n\t\t\t\tconst row = conversionApi.writer.createElement( 'tableRow' );\n\t\t\t\tconversionApi.writer.insert( row, conversionApi.writer.createPositionAt( table, 'end' ) );\n\n\t\t\t\tcreateEmptyTableCell( conversionApi.writer, conversionApi.writer.createPositionAt( row, 'end' ) );\n\t\t\t}\n\n\t\t\tconversionApi.updateConversionResult( table, data );\n\t\t} );\n\t};\n}\n\n/**\n * A conversion helper that skips empty <tr> elements from upcasting at the beginning of the table.\n *\n * An empty row is considered a table model error but when handling clipboard data there could be rows that contain only row-spanned cells\n * and empty TR-s are used to maintain the table structure (also {@link module:table/tablewalker~TableWalker} assumes that there are only\n * rows that have related `tableRow` elements).\n *\n * *Note:* Only the first empty rows are removed because they have no meaning and it solves the issue\n * of an improper table with all empty rows.\n *\n * @returns Conversion helper.\n */\nexport function skipEmptyTableRow() {\n\treturn ( dispatcher: UpcastDispatcher ): void => {\n\t\tdispatcher.on<UpcastElementEvent>( 'element:tr', ( evt, data ) => {\n\t\t\tif ( data.viewItem.isEmpty && data.modelCursor.index == 0 ) {\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t};\n}\n\n/**\n * A converter that ensures an empty paragraph is inserted in a table cell if no other content was converted.\n *\n * @returns Conversion helper.\n */\nexport function ensureParagraphInTableCell( elementName: string ) {\n\treturn ( dispatcher: UpcastDispatcher ): void => {\n\t\tdispatcher.on<UpcastElementEvent>( `element:${ elementName }`, ( evt, data, { writer } ) => {\n\t\t\t// The default converter will create a model range on converted table cell.\n\t\t\tif ( !data.modelRange ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst tableCell = data.modelRange.start.nodeAfter as Element;\n\t\t\tconst modelCursor = writer.createPositionAt( tableCell, 0 );\n\n\t\t\t// Ensure a paragraph in the model for empty table cells for converted table cells.\n\t\t\tif ( data.viewItem.isEmpty ) {\n\t\t\t\twriter.insertElement( 'paragraph', modelCursor );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst childNodes = Array.from( tableCell.getChildren() );\n\n\t\t\t// In case there are only markers inside the table cell then move them to the paragraph.\n\t\t\tif ( childNodes.every( node => node.is( 'element', '$marker' ) ) ) {\n\t\t\t\tconst paragraph = writer.createElement( 'paragraph' );\n\n\t\t\t\twriter.insert( paragraph, writer.createPositionAt( tableCell, 0 ) );\n\n\t\t\t\tfor ( const node of childNodes ) {\n\t\t\t\t\twriter.move( writer.createRangeOn( node ), writer.createPositionAt( paragraph, 'end' ) );\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'low' } );\n\t};\n}\n\n/**\n * Get view `<table>` element from the view widget (`<figure>`).\n */\nfunction getViewTableFromFigure( figureView: ViewElement ) {\n\tfor ( const figureChild of figureView.getChildren() ) {\n\t\tif ( figureChild.is( 'element', 'table' ) ) {\n\t\t\treturn figureChild;\n\t\t}\n\t}\n}\n\n/**\n * Scans table rows and extracts required metadata from the table:\n *\n * headingRows    - The number of rows that go as table headers.\n * headingColumns - The maximum number of row headings.\n * rows           - Sorted `<tr>` elements as they should go into the model - ie. if `<thead>` is inserted after `<tbody>` in the view.\n */\nfunction scanTable( viewTable: ViewElement ) {\n\tlet headingRows = 0;\n\tlet headingColumns: number | undefined = undefined;\n\n\t// The `<tbody>` and `<thead>` sections in the DOM do not have to be in order `<thead>` -> `<tbody>` and there might be more than one\n\t// of them.\n\t// As the model does not have these sections, rows from different sections must be sorted.\n\t// For example, below is a valid HTML table:\n\t//\n\t// <table>\n\t//   <tbody><tr><td>2</td></tr></tbody>\n\t//   <thead><tr><td>1</td></tr></thead>\n\t//   <tbody><tr><td>3</td></tr></tbody>\n\t// </table>\n\t//\n\t// But browsers will render rows in order as: 1 as the heading and 2 and 3 as the body.\n\tconst headRows = [];\n\tconst bodyRows = [];\n\n\t// Currently the editor does not support more then one <thead> section.\n\t// Only the first <thead> from the view will be used as a heading row and the others will be converted to body rows.\n\tlet firstTheadElement;\n\n\tfor ( const tableChild of Array.from( viewTable.getChildren() as IterableIterator<ViewElement> ) ) {\n\t\t// Only `<thead>`, `<tbody>` & `<tfoot>` from allowed table children can have `<tr>`s.\n\t\t// The else is for future purposes (mainly `<caption>`).\n\t\tif ( tableChild.name !== 'tbody' && tableChild.name !== 'thead' && tableChild.name !== 'tfoot' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Save the first `<thead>` in the table as table header - all other ones will be converted to table body rows.\n\t\tif ( tableChild.name === 'thead' && !firstTheadElement ) {\n\t\t\tfirstTheadElement = tableChild;\n\t\t}\n\n\t\t// There might be some extra empty text nodes between the `<tr>`s.\n\t\t// Make sure further code operates on `tr`s only. (#145)\n\t\tconst trs = Array.from( tableChild.getChildren() ).filter(\n\t\t\t( el: ViewNode ): el is ViewElement & { name: 'tr' } => el.is( 'element', 'tr' )\n\t\t);\n\n\t\tfor ( const tr of trs ) {\n\t\t\t// This <tr> is a child of a first <thead> element.\n\t\t\tif (\n\t\t\t\t( firstTheadElement && tableChild === firstTheadElement ) ||\n\t\t\t\t(\n\t\t\t\t\ttableChild.name === 'tbody' &&\n\t\t\t\t\tArray.from( tr.getChildren() ).length &&\n\t\t\t\t\tArray.from( tr.getChildren() ).every( e => e.is( 'element', 'th' ) )\n\t\t\t\t)\n\t\t\t) {\n\t\t\t\theadingRows++;\n\t\t\t\theadRows.push( tr );\n\t\t\t} else {\n\t\t\t\tbodyRows.push( tr );\n\t\t\t\t// For other rows check how many column headings this row has.\n\n\t\t\t\tconst headingCols = scanRowForHeadingColumns( tr );\n\n\t\t\t\tif ( !headingColumns || headingCols < headingColumns ) {\n\t\t\t\t\theadingColumns = headingCols;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn {\n\t\theadingRows,\n\t\theadingColumns: headingColumns || 0,\n\t\trows: [ ...headRows, ...bodyRows ]\n\t};\n}\n\n/**\n * Scans a `<tr>` element and its children for metadata:\n * - For heading row:\n *     - Adds this row to either the heading or the body rows.\n *     - Updates the number of heading rows.\n * - For body rows:\n *     - Calculates the number of column headings.\n */\nfunction scanRowForHeadingColumns( tr: ViewElement ) {\n\tlet headingColumns = 0;\n\tlet index = 0;\n\n\t// Filter out empty text nodes from tr children.\n\tconst children = Array.from( tr.getChildren() as IterableIterator<ViewElement> )\n\t\t.filter( child => child.name === 'th' || child.name === 'td' );\n\n\t// Count starting adjacent <th> elements of a <tr>.\n\twhile ( index < children.length && children[ index ].name === 'th' ) {\n\t\tconst th = children[ index ];\n\n\t\t// Adjust columns calculation by the number of spanned columns.\n\t\tconst colspan = parseInt( th.getAttribute( 'colspan' ) as string || '1' );\n\n\t\theadingColumns = headingColumns + colspan;\n\t\tindex++;\n\t}\n\n\treturn headingColumns;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablewalker\n */\nimport type { Element, Position } from 'ckeditor5/src/engine';\n\n// @if CK_DEBUG // const CKEditorError = require( '@ckeditor/ckeditor5-utils/src/ckeditorerror' ).default;\n\ninterface CellData {\n\tcell: Element;\n\trow: number;\n\tcolumn: number;\n}\n\n/**\n * An object with configuration for `TableWalker`.\n */\nexport interface TableWalkerOptions {\n\n\t/**\n\t * A row index for which this iterator will output cells. Can't be used together with `startRow` and `endRow`.\n\t */\n\trow?: number | null;\n\n\t/**\n\t * A row index from which this iterator should start. Can't be used together with `row`. Default value is 0.\n\t */\n\tstartRow?: number;\n\n\t/**\n\t * A row index at which this iterator should end. Can't be used together with `row`.\n\t */\n\tendRow?: number;\n\n\t/**\n\t * A column index for which this iterator will output cells. Can't be used together with `startColumn` and `endColumn`.\n\t */\n\tcolumn?: number;\n\n\t/**\n\t * A column index from which this iterator should start. Can't be used together with `column`. Default value is 0.\n\t */\n\tstartColumn?: number;\n\n\t/**\n\t * A column index at which this iterator should end. Can't be used together with `column`.\n\t */\n\tendColumn?: number;\n\n\t/**\n\t * Also return values for spanned cells. Default value is false.\n\t */\n\tincludeAllSlots?: boolean;\n}\n\n/**\n * The table iterator class. It allows to iterate over table cells. For each cell the iterator yields\n * {@link module:table/tablewalker~TableSlot} with proper table cell attributes.\n */\nexport default class TableWalker implements IterableIterator<TableSlot> {\n\t/**\n\t * The walker's table element.\n\t *\n\t * @internal\n\t */\n\tpublic readonly _table: Element;\n\n\t/**\n\t * A row index from which this iterator will start.\n\t */\n\tprivate readonly _startRow: number | null;\n\n\t/**\n\t * A row index at which this iterator will end.\n\t */\n\tprivate readonly _endRow?: number | null;\n\n\t/**\n\t * If set, the table walker will only output cells from a given column and following ones or cells that overlap them.\n\t */\n\tprivate readonly _startColumn: number;\n\n\t/**\n\t * If set, the table walker will only output cells up to a given column.\n\t */\n\tprivate readonly _endColumn?: number;\n\n\t/**\n\t * Enables output of spanned cells that are normally not yielded.\n\t */\n\tprivate readonly _includeAllSlots: boolean;\n\n\t/**\n\t * Row indexes to skip from the iteration.\n\t */\n\tprivate readonly _skipRows: Set<number>;\n\n\t/**\n\t * The current row index.\n\t *\n\t * @internal\n\t */\n\tpublic _row: number;\n\n\t/**\n\t * The index of the current row element in the table.\n\t *\n\t * @internal\n\t */\n\tpublic _rowIndex: number;\n\n\t/**\n\t * The current column index.\n\t *\n\t * @internal\n\t */\n\tpublic _column: number;\n\n\t/**\n\t * The cell index in a parent row. For spanned cells when {@link #_includeAllSlots} is set to `true`,\n\t * this represents the index of the next table cell.\n\t *\n\t * @internal\n\t */\n\tpublic _cellIndex: number;\n\n\t/**\n\t * Holds a map of spanned cells in a table.\n\t */\n\tprivate readonly _spannedCells: Map<number, Map<number, CellData>>;\n\n\t/**\n\t * Index of the next column where a cell is anchored.\n\t */\n\tprivate _nextCellAtColumn: number;\n\n\t/**\n\t * Creates an instance of the table walker.\n\t *\n\t * The table walker iterates internally by traversing the table from row index = 0 and column index = 0.\n\t * It walks row by row and column by column in order to output values defined in the constructor.\n\t * By default it will output only the locations that are occupied by a cell. To include also spanned rows and columns,\n\t * pass the `includeAllSlots` option to the constructor.\n\t *\n\t * The most important values of the iterator are column and row indexes of a cell.\n\t *\n\t * See {@link module:table/tablewalker~TableSlot} what values are returned by the table walker.\n\t *\n\t * To iterate over a given row:\n\t *\n\t * ```ts\n\t * const tableWalker = new TableWalker( table, { startRow: 1, endRow: 2 } );\n\t *\n\t * for ( const tableSlot of tableWalker ) {\n\t *   console.log( 'A cell at row', tableSlot.row, 'and column', tableSlot.column );\n\t * }\n\t * ```\n\t *\n\t * For instance the code above for the following table:\n\t *\n\t *  +----+----+----+----+----+----+\n\t *  | 00      | 02 | 03 | 04 | 05 |\n\t *  |         +----+----+----+----+\n\t *  |         | 12      | 14 | 15 |\n\t *  |         +----+----+----+    +\n\t *  |         | 22           |    |\n\t *  |----+----+----+----+----+    +\n\t *  | 30 | 31 | 32 | 33 | 34 |    |\n\t *  +----+----+----+----+----+----+\n\t *\n\t * will log in the console:\n\t *\n\t *  'A cell at row 1 and column 2'\n\t *  'A cell at row 1 and column 4'\n\t *  'A cell at row 1 and column 5'\n\t *  'A cell at row 2 and column 2'\n\t *\n\t * To also iterate over spanned cells:\n\t *\n\t * ```ts\n\t * const tableWalker = new TableWalker( table, { row: 1, includeAllSlots: true } );\n\t *\n\t * for ( const tableSlot of tableWalker ) {\n\t *   console.log( 'Slot at', tableSlot.row, 'x', tableSlot.column, ':', tableSlot.isAnchor ? 'is anchored' : 'is spanned' );\n\t * }\n\t * ```\n\t *\n\t * will log in the console for the table from the previous example:\n\t *\n\t *  'Cell at 1 x 0 : is spanned'\n\t *  'Cell at 1 x 1 : is spanned'\n\t *  'Cell at 1 x 2 : is anchored'\n\t *  'Cell at 1 x 3 : is spanned'\n\t *  'Cell at 1 x 4 : is anchored'\n\t *  'Cell at 1 x 5 : is anchored'\n\t *\n\t * **Note**: Option `row` is a shortcut that sets both `startRow` and `endRow` to the same row.\n\t * (Use either `row` or `startRow` and `endRow` but never together). Similarly the `column` option sets both `startColumn`\n\t * and `endColumn` to the same column (Use either `column` or `startColumn` and `endColumn` but never together).\n\t *\n\t * @param table A table over which the walker iterates.\n\t * @param options An object with configuration.\n\t * @param options.row A row index for which this iterator will output cells. Can't be used together with `startRow` and `endRow`.\n\t * @param options.startRow A row index from which this iterator should start. Can't be used together with `row`. Default value is 0.\n\t * @param options.endRow A row index at which this iterator should end. Can't be used together with `row`.\n\t * @param options.column A column index for which this iterator will output cells.\n\t * Can't be used together with `startColumn` and `endColumn`.\n\t * @param options.startColumn A column index from which this iterator should start.\n\t * Can't be used together with `column`. Default value is 0.\n\t * @param options.endColumn A column index at which this iterator should end. Can't be used together with `column`.\n\t * @param options.includeAllSlots Also return values for spanned cells. Default value is \"false\".\n\t */\n\tconstructor( table: Element, options: TableWalkerOptions = {} ) {\n\t\tthis._table = table;\n\t\tthis._startRow = options.row !== undefined ? options.row : options.startRow || 0;\n\t\tthis._endRow = options.row !== undefined ? options.row : options.endRow;\n\t\tthis._startColumn = options.column !== undefined ? options.column : options.startColumn || 0;\n\t\tthis._endColumn = options.column !== undefined ? options.column : options.endColumn;\n\t\tthis._includeAllSlots = !!options.includeAllSlots;\n\t\tthis._skipRows = new Set();\n\t\tthis._row = 0;\n\t\tthis._rowIndex = 0;\n\t\tthis._column = 0;\n\t\tthis._cellIndex = 0;\n\t\tthis._spannedCells = new Map();\n\t\tthis._nextCellAtColumn = -1;\n\t}\n\n\t/**\n\t * Iterable interface.\n\t */\n\tpublic [ Symbol.iterator ](): IterableIterator<TableSlot> {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Gets the next table walker's value.\n\t *\n\t * @returns The next table walker's value.\n\t */\n\tpublic next(): IteratorResult<TableSlot, undefined> {\n\t\tconst row = this._table.getChild( this._rowIndex );\n\n\t\t// Iterator is done when there's no row (table ended) or the row is after `endRow` limit.\n\t\tif ( !row || this._isOverEndRow() ) {\n\t\t\treturn { done: true, value: undefined };\n\t\t}\n\n\t\t// We step over current element when it is not a tableRow instance.\n\t\tif ( !row.is( 'element', 'tableRow' ) ) {\n\t\t\tthis._rowIndex++;\n\n\t\t\treturn this.next();\n\t\t}\n\n\t\tif ( this._isOverEndColumn() ) {\n\t\t\treturn this._advanceToNextRow();\n\t\t}\n\n\t\tlet outValue: IteratorYieldResult<TableSlot> | null = null;\n\n\t\tconst spanData = this._getSpanned();\n\n\t\tif ( spanData ) {\n\t\t\tif ( this._includeAllSlots && !this._shouldSkipSlot() ) {\n\t\t\t\toutValue = this._formatOutValue( spanData.cell, spanData.row, spanData.column );\n\t\t\t}\n\t\t} else {\n\t\t\tconst cell = row.getChild( this._cellIndex ) as Element;\n\n\t\t\tif ( !cell ) {\n\t\t\t\t// If there are no more cells left in row advance to the next row.\n\t\t\t\treturn this._advanceToNextRow();\n\t\t\t}\n\n\t\t\tconst colspan = parseInt( cell.getAttribute( 'colspan' ) as string || '1' );\n\t\t\tconst rowspan = parseInt( cell.getAttribute( 'rowspan' ) as string || '1' );\n\n\t\t\t// Record this cell spans if it's not 1x1 cell.\n\t\t\tif ( colspan > 1 || rowspan > 1 ) {\n\t\t\t\tthis._recordSpans( cell, rowspan, colspan );\n\t\t\t}\n\n\t\t\tif ( !this._shouldSkipSlot() ) {\n\t\t\t\toutValue = this._formatOutValue( cell );\n\t\t\t}\n\n\t\t\tthis._nextCellAtColumn = this._column + colspan;\n\t\t}\n\n\t\t// Advance to the next column before returning value.\n\t\tthis._column++;\n\n\t\tif ( this._column == this._nextCellAtColumn ) {\n\t\t\tthis._cellIndex++;\n\t\t}\n\n\t\t// The current value will be returned only if current row and column are not skipped.\n\t\treturn outValue || this.next();\n\t}\n\n\t/**\n\t * Marks a row to skip in the next iteration. It will also skip cells from the current row if there are any cells from the current row\n\t * to output.\n\t *\n\t * @param row The row index to skip.\n\t */\n\tpublic skipRow( row: number ): void {\n\t\tthis._skipRows.add( row );\n\t}\n\n\t/**\n\t * Advances internal cursor to the next row.\n\t */\n\tprivate _advanceToNextRow() {\n\t\tthis._row++;\n\t\tthis._rowIndex++;\n\t\tthis._column = 0;\n\t\tthis._cellIndex = 0;\n\t\tthis._nextCellAtColumn = -1;\n\n\t\treturn this.next();\n\t}\n\n\t/**\n\t * Checks if the current row is over {@link #_endRow}.\n\t */\n\tprivate _isOverEndRow() {\n\t\t// If #_endRow is defined skip all rows after it.\n\t\treturn this._endRow !== undefined && this._row > this._endRow!;\n\t}\n\n\t/**\n\t * Checks if the current cell is over {@link #_endColumn}\n\t */\n\tprivate _isOverEndColumn() {\n\t\t// If #_endColumn is defined skip all cells after it.\n\t\treturn this._endColumn !== undefined && this._column > this._endColumn;\n\t}\n\n\t/**\n\t * A common method for formatting the iterator's output value.\n\t *\n\t * @param cell The table cell to output.\n\t * @param anchorRow The row index of a cell anchor slot.\n\t * @param anchorColumn The column index of a cell anchor slot.\n\t */\n\tprivate _formatOutValue( cell: Element, anchorRow = this._row, anchorColumn = this._column ): IteratorYieldResult<TableSlot> {\n\t\treturn {\n\t\t\tdone: false,\n\t\t\tvalue: new TableSlot( this, cell, anchorRow, anchorColumn )\n\t\t};\n\t}\n\n\t/**\n\t * Checks if the current slot should be skipped.\n\t */\n\tprivate _shouldSkipSlot(): boolean {\n\t\tconst rowIsMarkedAsSkipped = this._skipRows.has( this._row );\n\t\tconst rowIsBeforeStartRow = this._row < this._startRow!;\n\n\t\tconst columnIsBeforeStartColumn = this._column < this._startColumn;\n\t\tconst columnIsAfterEndColumn = this._endColumn !== undefined && this._column > this._endColumn;\n\n\t\treturn rowIsMarkedAsSkipped || rowIsBeforeStartRow || columnIsBeforeStartColumn || columnIsAfterEndColumn;\n\t}\n\n\t/**\n\t * Returns the cell element that is spanned over the current cell location.\n\t */\n\tprivate _getSpanned(): CellData | null {\n\t\tconst rowMap = this._spannedCells.get( this._row );\n\n\t\t// No spans for given row.\n\t\tif ( !rowMap ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// If spans for given rows has entry for column it means that this location if spanned by other cell.\n\t\treturn rowMap.get( this._column ) || null;\n\t}\n\n\t/**\n\t * Updates spanned cells map relative to the current cell location and its span dimensions.\n\t *\n\t * @param cell A cell that is spanned.\n\t * @param rowspan Cell height.\n\t * @param colspan Cell width.\n\t */\n\tprivate _recordSpans( cell: Element, rowspan: number, colspan: number ) {\n\t\tconst data = {\n\t\t\tcell,\n\t\t\trow: this._row,\n\t\t\tcolumn: this._column\n\t\t};\n\n\t\tfor ( let rowToUpdate = this._row; rowToUpdate < this._row + rowspan; rowToUpdate++ ) {\n\t\t\tfor ( let columnToUpdate = this._column; columnToUpdate < this._column + colspan; columnToUpdate++ ) {\n\t\t\t\tif ( rowToUpdate != this._row || columnToUpdate != this._column ) {\n\t\t\t\t\tthis._markSpannedCell( rowToUpdate, columnToUpdate, data );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Marks the cell location as spanned by another cell.\n\t *\n\t * @param row The row index of the cell location.\n\t * @param column The column index of the cell location.\n\t * @param data A spanned cell details (cell element, anchor row and column).\n\t */\n\tprivate _markSpannedCell( row: number, column: number, data: CellData ) {\n\t\tif ( !this._spannedCells.has( row ) ) {\n\t\t\tthis._spannedCells.set( row, new Map() );\n\t\t}\n\n\t\tconst rowSpans = this._spannedCells.get( row )!;\n\n\t\trowSpans.set( column, data );\n\t}\n}\n\n/**\n * An object returned by {@link module:table/tablewalker~TableWalker} when traversing table cells.\n */\nclass TableSlot {\n\t/**\n\t * The current table cell.\n\t */\n\tpublic readonly cell: Element;\n\n\t/**\n\t * The row index of a table slot.\n\t */\n\tpublic readonly row: number;\n\n\t/**\n\t * The column index of a table slot.\n\t */\n\tpublic readonly column: number;\n\n\t/**\n\t * The row index of a cell anchor slot.\n\t */\n\tpublic readonly cellAnchorRow: number;\n\n\t/**\n\t * The column index of a cell anchor slot.\n\t */\n\tpublic readonly cellAnchorColumn: number;\n\n\t/**\n\t * The index of the current cell in the parent row.\n\t */\n\tprivate readonly _cellIndex: number;\n\n\t/**\n\t * The index of the current row element in the table.\n\t */\n\tprivate readonly _rowIndex: number;\n\n\t/**\n\t * The table element.\n\t */\n\tprivate readonly _table: Element;\n\n\t/**\n\t * Creates an instance of the table walker value.\n\t *\n\t * @param tableWalker The table walker instance.\n\t * @param cell The current table cell.\n\t * @param anchorRow The row index of a cell anchor slot.\n\t * @param anchorColumn The column index of a cell anchor slot.\n\t */\n\tconstructor( tableWalker: TableWalker, cell: Element, anchorRow: number, anchorColumn: number ) {\n\t\tthis.cell = cell;\n\t\tthis.row = tableWalker._row;\n\t\tthis.column = tableWalker._column;\n\t\tthis.cellAnchorRow = anchorRow;\n\t\tthis.cellAnchorColumn = anchorColumn;\n\t\tthis._cellIndex = tableWalker._cellIndex;\n\t\tthis._rowIndex = tableWalker._rowIndex;\n\t\tthis._table = tableWalker._table;\n\t}\n\n\t// @if CK_DEBUG // public get isSpanned(): unknown { return throwMissingGetterError( 'isSpanned' ); }\n\t// @if CK_DEBUG // public get colspan(): unknown { return throwMissingGetterError( 'colspan' ); }\n\t// @if CK_DEBUG // public get rowspan(): unknown { return throwMissingGetterError( 'rowspan' ); }\n\t// @if CK_DEBUG // public get cellIndex(): unknown { return throwMissingGetterError( 'cellIndex' ); }\n\n\t/**\n\t * Whether the cell is anchored in the current slot.\n\t */\n\tpublic get isAnchor(): boolean {\n\t\treturn this.row === this.cellAnchorRow && this.column === this.cellAnchorColumn;\n\t}\n\n\t/**\n\t * The width of a cell defined by a `colspan` attribute. If the model attribute is not present, it is set to `1`.\n\t */\n\tpublic get cellWidth(): number {\n\t\treturn parseInt( this.cell.getAttribute( 'colspan' ) as string || '1' );\n\t}\n\n\t/**\n\t * The height of a cell defined by a `rowspan` attribute. If the model attribute is not present, it is set to `1`.\n\t */\n\tpublic get cellHeight(): number {\n\t\treturn parseInt( this.cell.getAttribute( 'rowspan' ) as string || '1' );\n\t}\n\n\t/**\n\t * The index of the current row element in the table.\n\t */\n\tpublic get rowIndex(): number {\n\t\treturn this._rowIndex;\n\t}\n\n\t/**\n\t * Returns the {@link module:engine/model/position~Position} before the table slot.\n\t */\n\tpublic getPositionBefore(): Position {\n\t\tconst model = this._table.root.document!.model;\n\n\t\treturn model.createPositionAt( this._table.getChild( this.row ) as Element, this._cellIndex );\n\t}\n}\n\nexport type { TableSlot };\n\n/**\n * This `TableSlot`'s getter (property) was removed in CKEditor 5 v20.0.0.\n *\n * Check out the new `TableWalker`'s API in the documentation.\n *\n * @error tableslot-getter-removed\n * @param getterName\n */\n// @if CK_DEBUG // function throwMissingGetterError( getterName: string ): void {\n// @if CK_DEBUG //\t\tthrow new CKEditorError( 'tableslot-getter-removed', null, {\n// @if CK_DEBUG //\t\t\tgetterName\n// @if CK_DEBUG //\t\t} );\n// @if CK_DEBUG // }\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/downcast\n */\n\nimport { toWidget, toWidgetEditable } from 'ckeditor5/src/widget';\nimport type { Node, ViewElement, Element, DowncastWriter, ElementCreatorFunction } from 'ckeditor5/src/engine';\n\nimport TableWalker from './../tablewalker';\nimport type TableUtils from '../tableutils';\nimport type { AdditionalSlot } from '../tableediting';\n\n/**\n * Model table element to view table element conversion helper.\n */\nexport function downcastTable( tableUtils: TableUtils, options: DowncastTableOptions ): ElementCreatorFunction {\n\treturn ( table, { writer } ) => {\n\t\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\t\tconst tableElement = writer.createContainerElement( 'table', null, [] );\n\t\tconst figureElement = writer.createContainerElement( 'figure', { class: 'table' }, tableElement );\n\n\t\t// Table head slot.\n\t\tif ( headingRows > 0 ) {\n\t\t\twriter.insert(\n\t\t\t\twriter.createPositionAt( tableElement, 'end' ),\n\t\t\t\twriter.createContainerElement(\n\t\t\t\t\t'thead',\n\t\t\t\t\tnull,\n\t\t\t\t\twriter.createSlot( element => element.is( 'element', 'tableRow' ) && element.index! < headingRows )\n\t\t\t\t)\n\t\t\t);\n\t\t}\n\n\t\t// Table body slot.\n\t\tif ( headingRows < tableUtils.getRows( table ) ) {\n\t\t\twriter.insert(\n\t\t\t\twriter.createPositionAt( tableElement, 'end' ),\n\t\t\t\twriter.createContainerElement(\n\t\t\t\t\t'tbody',\n\t\t\t\t\tnull,\n\t\t\t\t\twriter.createSlot( element => element.is( 'element', 'tableRow' ) && element.index! >= headingRows )\n\t\t\t\t)\n\t\t\t);\n\t\t}\n\n\t\t// Dynamic slots.\n\t\tfor ( const { positionOffset, filter } of options.additionalSlots ) {\n\t\t\twriter.insert(\n\t\t\t\twriter.createPositionAt( tableElement, positionOffset ),\n\t\t\t\twriter.createSlot( filter )\n\t\t\t);\n\t\t}\n\n\t\t// Create a slot with items that don't fit into the table.\n\t\twriter.insert(\n\t\t\twriter.createPositionAt( tableElement, 'after' ),\n\t\t\twriter.createSlot( element => {\n\t\t\t\tif ( element.is( 'element', 'tableRow' ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\treturn !options.additionalSlots.some( ( { filter } ) => filter( element ) );\n\t\t\t} )\n\t\t);\n\n\t\treturn options.asWidget ? toTableWidget( figureElement, writer ) : figureElement;\n\t};\n}\n\n/**\n * Model table row element to view `<tr>` element conversion helper.\n *\n * @returns Element creator.\n */\nexport function downcastRow(): ElementCreatorFunction {\n\treturn ( tableRow, { writer } ) => {\n\t\treturn tableRow.isEmpty ?\n\t\t\twriter.createEmptyElement( 'tr' ) :\n\t\t\twriter.createContainerElement( 'tr' );\n\t};\n}\n\n/**\n * Model table cell element to view `<td>` or `<th>` element conversion helper.\n *\n * This conversion helper will create proper `<th>` elements for table cells that are in the heading section (heading row or column)\n * and `<td>` otherwise.\n *\n * @param options.asWidget If set to `true`, the downcast conversion will produce a widget.\n * @returns Element creator.\n */\nexport function downcastCell( options: { asWidget?: boolean } = {} ): ElementCreatorFunction {\n\treturn ( tableCell, { writer } ) => {\n\t\tconst tableRow = tableCell.parent as Element;\n\t\tconst table = tableRow.parent as Element;\n\t\tconst rowIndex = table.getChildIndex( tableRow )!;\n\n\t\tconst tableWalker = new TableWalker( table, { row: rowIndex } );\n\t\tconst headingRows = table.getAttribute( 'headingRows' ) as number || 0;\n\t\tconst headingColumns = table.getAttribute( 'headingColumns' ) as number || 0;\n\n\t\tlet result: ViewElement | null = null;\n\n\t\t// We need to iterate over a table in order to get proper row & column values from a walker.\n\t\tfor ( const tableSlot of tableWalker ) {\n\t\t\tif ( tableSlot.cell == tableCell ) {\n\t\t\t\tconst isHeading = tableSlot.row < headingRows || tableSlot.column < headingColumns;\n\t\t\t\tconst cellElementName = isHeading ? 'th' : 'td';\n\n\t\t\t\tresult = options.asWidget ?\n\t\t\t\t\ttoWidgetEditable( writer.createEditableElement( cellElementName ), writer ) :\n\t\t\t\t\twriter.createContainerElement( cellElementName );\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t};\n}\n\n/**\n * Overrides paragraph inside table cell conversion.\n *\n * This converter:\n * * should be used to override default paragraph conversion.\n * * It will only convert `<paragraph>` placed directly inside `<tableCell>`.\n * * For a single paragraph without attributes it returns `<span>` to simulate data table.\n * * For all other cases it returns `<p>` element.\n *\n * @param options.asWidget If set to `true`, the downcast conversion will produce a widget.\n * @returns Element creator.\n */\nexport function convertParagraphInTableCell( options: { asWidget?: boolean } = {} ): ElementCreatorFunction {\n\treturn ( modelElement, { writer } ) => {\n\t\tif ( !modelElement.parent!.is( 'element', 'tableCell' ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( !isSingleParagraphWithoutAttributes( modelElement ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\tif ( options.asWidget ) {\n\t\t\treturn writer.createContainerElement( 'span', { class: 'ck-table-bogus-paragraph' } );\n\t\t} else {\n\t\t\t// Using `<p>` in case there are some markers on it and transparentRendering will render it anyway.\n\t\t\tconst viewElement = writer.createContainerElement( 'p' );\n\n\t\t\twriter.setCustomProperty( 'dataPipeline:transparentRendering', true, viewElement );\n\n\t\t\treturn viewElement;\n\t\t}\n\t};\n}\n\n/**\n * Checks if given model `<paragraph>` is an only child of a parent (`<tableCell>`) and if it has any attribute set.\n *\n * The paragraph should be converted in the editing view to:\n *\n * * If returned `true` - to a `<span class=\"ck-table-bogus-paragraph\">`\n * * If returned `false` - to a `<p>`\n */\nexport function isSingleParagraphWithoutAttributes( modelElement: Element ): boolean {\n\tconst tableCell = modelElement.parent!;\n\n\tconst isSingleParagraph = tableCell.childCount == 1;\n\n\treturn isSingleParagraph && !hasAnyAttribute( modelElement );\n}\n\n/**\n * Converts a given {@link module:engine/view/element~Element} to a table widget:\n * * Adds a {@link module:engine/view/element~Element#_setCustomProperty custom property} allowing to recognize the table widget element.\n * * Calls the {@link module:widget/utils~toWidget} function with the proper element's label creator.\n *\n * @param writer An instance of the view writer.\n * @param label The element's label. It will be concatenated with the table `alt` attribute if one is present.\n */\nfunction toTableWidget( viewElement: ViewElement, writer: DowncastWriter ): ViewElement {\n\twriter.setCustomProperty( 'table', true, viewElement );\n\n\treturn toWidget( viewElement, writer, { hasSelectionHandle: true } );\n}\n\n/**\n * Checks if an element has any attributes set.\n */\nfunction hasAnyAttribute( element: Node ): boolean {\n\tconst iteratorItem = element.getAttributeKeys().next();\n\n\treturn !iteratorItem.done;\n}\n\nexport interface DowncastTableOptions {\n\n\t/**\n\t * If set to `true`, the downcast conversion will produce a widget.\n\t */\n\tasWidget?: boolean;\n\n\t/**\n\t * Array of additional slot handlers.\n\t */\n\tadditionalSlots: Array<AdditionalSlot>;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/inserttablecommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\n\nimport type {\n\tDocumentSelection,\n\tSchema,\n\tSelection,\n\tElement\n} from 'ckeditor5/src/engine';\nimport type TableUtils from '../tableutils';\n\n/**\n * The insert table command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'insertTable'` editor command.\n *\n * To insert a table at the current selection, execute the command and specify the dimensions:\n *\n * ```ts\n * editor.execute( 'insertTable', { rows: 20, columns: 5 } );\n * ```\n */\nexport default class InsertTableCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst schema = model.schema;\n\n\t\tthis.isEnabled = isAllowedInParent( selection, schema );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Inserts a table with the given number of rows and columns into the editor.\n\t *\n\t * @param options.rows The number of rows to create in the inserted table. Default value is 2.\n\t * @param options.columns The number of columns to create in the inserted table. Default value is 2.\n\t * @param options.headingRows The number of heading rows. If not provided it will default to\n\t * {@link module:table/tableconfig~TableConfig#defaultHeadings `config.table.defaultHeadings.rows`} table config.\n\t * @param options.headingColumns The number of heading columns. If not provided it will default to\n\t * {@link module:table/tableconfig~TableConfig#defaultHeadings `config.table.defaultHeadings.columns`} table config.\n\t * @fires execute\n\t */\n\tpublic override execute(\n\t\toptions: {\n\t\t\trows?: number;\n\t\t\tcolumns?: number;\n\t\t\theadingRows?: number;\n\t\t\theadingColumns?: number;\n\t\t} = {}\n\t): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst tableUtils: TableUtils = editor.plugins.get( 'TableUtils' );\n\n\t\tconst defaultRows = editor.config.get( 'table.defaultHeadings.rows' );\n\t\tconst defaultColumns = editor.config.get( 'table.defaultHeadings.columns' );\n\n\t\tif ( options.headingRows === undefined && defaultRows ) {\n\t\t\toptions.headingRows = defaultRows;\n\t\t}\n\n\t\tif ( options.headingColumns === undefined && defaultColumns ) {\n\t\t\toptions.headingColumns = defaultColumns;\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tconst table = tableUtils.createTable( writer, options );\n\n\t\t\tmodel.insertObject( table, null, null, { findOptimalPosition: 'auto' } );\n\n\t\t\twriter.setSelection( writer.createPositionAt( table.getNodeByPath( [ 0, 0, 0 ] ), 0 ) );\n\t\t} );\n\t}\n}\n\n/**\n * Checks if the table is allowed in the parent.\n */\nfunction isAllowedInParent( selection: Selection | DocumentSelection, schema: Schema ) {\n\tconst positionParent = selection.getFirstPosition()!.parent;\n\tconst validParent = positionParent === positionParent.root ? positionParent : positionParent.parent;\n\n\treturn schema.checkChild( validParent as Element, 'table' );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/insertrowcommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type TableUtils from '../tableutils';\n\n/**\n * The insert row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'insertTableRowBelow'` and\n * `'insertTableRowAbove'` editor commands.\n *\n * To insert a row below the selected cell, execute the following command:\n *\n * ```ts\n * editor.execute( 'insertTableRowBelow' );\n * ```\n *\n * To insert a row above the selected cell, execute the following command:\n *\n * ```ts\n * editor.execute( 'insertTableRowAbove' );\n * ```\n */\nexport default class InsertRowCommand extends Command {\n\t/**\n\t * The order of insertion relative to the row in which the caret is located.\n\t */\n\tpublic readonly order: 'above' | 'below';\n\n\t/**\n\t * Creates a new `InsertRowCommand` instance.\n\t *\n\t * @param editor The editor on which this command will be used.\n\t * @param options.order The order of insertion relative to the row in which the caret is located.\n\t * Possible values: `\"above\"` and `\"below\"`. Default value is \"below\"\n\t */\n\tconstructor( editor: Editor, options: { order?: 'above' | 'below' } = {} ) {\n\t\tsuper( editor );\n\n\t\tthis.order = options.order || 'below';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst isAnyCellSelected = !!tableUtils.getSelectionAffectedTableCells( selection ).length;\n\n\t\tthis.isEnabled = isAnyCellSelected;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Depending on the command's {@link #order} value, it inserts a row `'below'` or `'above'` the row in which selection is set.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst tableUtils: TableUtils = editor.plugins.get( 'TableUtils' );\n\t\tconst insertAbove = this.order === 'above';\n\n\t\tconst affectedTableCells = tableUtils.getSelectionAffectedTableCells( selection );\n\t\tconst rowIndexes = tableUtils.getRowIndexes( affectedTableCells );\n\n\t\tconst row = insertAbove ? rowIndexes.first : rowIndexes.last;\n\t\tconst table = affectedTableCells[ 0 ].findAncestor( 'table' )!;\n\n\t\ttableUtils.insertRows( table, { at: insertAbove ? row : row + 1, copyStructureFromAbove: !insertAbove } );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/insertcolumncommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type TableUtils from '../tableutils';\n\n/**\n * The insert column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'insertTableColumnLeft'` and\n * `'insertTableColumnRight'` editor commands.\n *\n * To insert a column to the left of the selected cell, execute the following command:\n *\n * ```ts\n * editor.execute( 'insertTableColumnLeft' );\n * ```\n *\n * To insert a column to the right of the selected cell, execute the following command:\n *\n * ```ts\n * editor.execute( 'insertTableColumnRight' );\n * ```\n */\nexport default class InsertColumnCommand extends Command {\n\t/**\n\t * The order of insertion relative to the column in which the caret is located.\n\t */\n\tpublic readonly order: 'left' | 'right';\n\n\t/**\n\t * Creates a new `InsertColumnCommand` instance.\n\t *\n\t * @param editor An editor on which this command will be used.\n\t * @param options.order The order of insertion relative to the column in which the caret is located.\n\t * Possible values: `\"left\"` and `\"right\"`. Default value is \"right\".\n\t */\n\tconstructor( editor: Editor, options: { order?: 'left' | 'right' } = {} ) {\n\t\tsuper( editor );\n\n\t\tthis.order = options.order || 'right';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst isAnyCellSelected = !!tableUtils.getSelectionAffectedTableCells( selection ).length;\n\n\t\tthis.isEnabled = isAnyCellSelected;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Depending on the command's {@link #order} value, it inserts a column to the `'left'` or `'right'` of the column\n\t * in which the selection is set.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst tableUtils: TableUtils = editor.plugins.get( 'TableUtils' );\n\t\tconst insertBefore = this.order === 'left';\n\n\t\tconst affectedTableCells = tableUtils.getSelectionAffectedTableCells( selection );\n\t\tconst columnIndexes = tableUtils.getColumnIndexes( affectedTableCells );\n\n\t\tconst column = insertBefore ? columnIndexes.first : columnIndexes.last;\n\t\tconst table = affectedTableCells[ 0 ].findAncestor( 'table' )!;\n\n\t\ttableUtils.insertColumns( table, { columns: 1, at: insertBefore ? column : column + 1 } );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/splitcellcommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type TableUtils from '../tableutils';\n\n/**\n * The split cell command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'splitTableCellVertically'`\n * and `'splitTableCellHorizontally'`  editor commands.\n *\n * You can split any cell vertically or horizontally by executing this command. For example, to split the selected table cell vertically:\n *\n * ```ts\n * editor.execute( 'splitTableCellVertically' );\n * ```\n */\nexport default class SplitCellCommand extends Command {\n\t/**\n\t * The direction that indicates which cell will be split.\n\t */\n\tpublic readonly direction: 'horizontally' | 'vertically';\n\n\t/**\n\t * Creates a new `SplitCellCommand` instance.\n\t *\n\t * @param editor The editor on which this command will be used.\n\t * @param options.direction Indicates whether the command should split cells `'horizontally'` or `'vertically'`.\n\t */\n\tconstructor( editor: Editor, options: { direction?: 'horizontally' | 'vertically' } = {} ) {\n\t\tsuper( editor );\n\n\t\tthis.direction = options.direction || 'horizontally';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = selectedCells.length === 1;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCell = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection )[ 0 ];\n\t\tconst isHorizontal = this.direction === 'horizontally';\n\n\t\tif ( isHorizontal ) {\n\t\t\ttableUtils.splitCellHorizontally( tableCell, 2 );\n\t\t} else {\n\t\t\ttableUtils.splitCellVertically( tableCell, 2 );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/structure\n */\n\nimport type { Element, Node, Writer } from 'ckeditor5/src/engine';\n\nimport { default as TableWalker, type TableSlot } from '../tablewalker';\nimport { createEmptyTableCell, updateNumericAttribute } from './common';\nimport type TableUtils from '../tableutils';\n\ntype CellAttributes = {\n\trowspan?: number;\n\tcolspan?: number;\n};\n\n/**\n * Returns a cropped table according to given dimensions.\n\n * To return a cropped table that starts at first row and first column and end in third row and column:\n *\n * ```ts\n * const croppedTable = cropTableToDimensions( table, {\n *   startRow: 1,\n *   endRow: 3,\n *   startColumn: 1,\n *   endColumn: 3\n * }, writer );\n * ```\n *\n * Calling the code above for the table below:\n *\n *        0   1   2   3   4                      0   1   2\n *      ┌───┬───┬───┬───┬───┐\n *   0  │ a │ b │ c │ d │ e │\n *      ├───┴───┤   ├───┴───┤                  ┌───┬───┬───┐\n *   1  │ f     │   │ g     │                  │   │   │ g │  0\n *      ├───┬───┴───┼───┬───┤   will return:   ├───┴───┼───┤\n *   2  │ h │ i     │ j │ k │                  │ i     │ j │  1\n *      ├───┤       ├───┤   │                  │       ├───┤\n *   3  │ l │       │ m │   │                  │       │ m │  2\n *      ├───┼───┬───┤   ├───┤                  └───────┴───┘\n *   4  │ n │ o │ p │   │ q │\n *      └───┴───┴───┴───┴───┘\n */\nexport function cropTableToDimensions(\n\tsourceTable: Element,\n\tcropDimensions: {\n\t\tstartRow: number;\n\t\tstartColumn: number;\n\t\tendRow: number;\n\t\tendColumn: number;\n\t},\n\twriter: Writer\n): Element {\n\tconst { startRow, startColumn, endRow, endColumn } = cropDimensions;\n\n\t// Create empty table with empty rows equal to crop height.\n\tconst croppedTable = writer.createElement( 'table' );\n\tconst cropHeight = endRow - startRow + 1;\n\n\tfor ( let i = 0; i < cropHeight; i++ ) {\n\t\twriter.insertElement( 'tableRow', croppedTable, 'end' );\n\t}\n\n\tconst tableMap = [ ...new TableWalker( sourceTable, { startRow, endRow, startColumn, endColumn, includeAllSlots: true } ) ];\n\n\t// Iterate over source table slots (including empty - spanned - ones).\n\tfor ( const { row: sourceRow, column: sourceColumn, cell: tableCell, isAnchor, cellAnchorRow, cellAnchorColumn } of tableMap ) {\n\t\t// Row index in cropped table.\n\t\tconst rowInCroppedTable = sourceRow - startRow;\n\t\tconst row = croppedTable.getChild( rowInCroppedTable ) as Element;\n\n\t\t// For empty slots: fill the gap with empty table cell.\n\t\tif ( !isAnchor ) {\n\t\t\t// But fill the gap only if the spanning cell is anchored outside cropped area.\n\t\t\t// In the table from method jsdoc those cells are: \"c\" & \"f\".\n\t\t\tif ( cellAnchorRow < startRow || cellAnchorColumn < startColumn ) {\n\t\t\t\tcreateEmptyTableCell( writer, writer.createPositionAt( row, 'end' ) );\n\t\t\t}\n\t\t}\n\t\t// Otherwise clone the cell with all children and trim if it exceeds cropped area.\n\t\telse {\n\t\t\tconst tableCellCopy = writer.cloneElement( tableCell );\n\n\t\t\twriter.append( tableCellCopy, row );\n\n\t\t\t// Trim table if it exceeds cropped area.\n\t\t\t// In the table from method jsdoc those cells are: \"g\" & \"m\".\n\t\t\ttrimTableCellIfNeeded( tableCellCopy, sourceRow, sourceColumn, endRow, endColumn, writer );\n\t\t}\n\t}\n\n\t// Adjust heading rows & columns in cropped table if crop selection includes headings parts.\n\taddHeadingsToCroppedTable( croppedTable, sourceTable, startRow, startColumn, writer );\n\n\treturn croppedTable;\n}\n\n/**\n * Returns slot info of cells that starts above and overlaps a given row.\n *\n * In a table below, passing `overlapRow = 3`\n *\n *     ┌───┬───┬───┬───┬───┐\n *  0  │ a │ b │ c │ d │ e │\n *     │   ├───┼───┼───┼───┤\n *  1  │   │ f │ g │ h │ i │\n *     ├───┤   ├───┼───┤   │\n *  2  │ j │   │ k │ l │   │\n *     │   │   │   ├───┼───┤\n *  3  │   │   │   │ m │ n │  <- overlap row to check\n *     ├───┼───┤   │   ├───│\n *  4  │ o │ p │   │   │ q │\n *     └───┴───┴───┴───┴───┘\n *\n * will return slot info for cells: \"j\", \"f\", \"k\".\n *\n * @param table The table to check.\n * @param overlapRow The index of the row to check.\n * @param startRow row to start analysis. Use it when it is known that the cells above that row will not overlap. Default value is 0.\n */\nexport function getVerticallyOverlappingCells( table: Element, overlapRow: number, startRow: number = 0 ): Array<TableSlot> {\n\tconst cells: Array<TableSlot> = [];\n\n\tconst tableWalker = new TableWalker( table, { startRow, endRow: overlapRow - 1 } );\n\n\tfor ( const slotInfo of tableWalker ) {\n\t\tconst { row, cellHeight } = slotInfo;\n\t\tconst cellEndRow = row + cellHeight - 1;\n\n\t\tif ( row < overlapRow && overlapRow <= cellEndRow ) {\n\t\t\tcells.push( slotInfo );\n\t\t}\n\t}\n\n\treturn cells;\n}\n\n/**\n * Splits the table cell horizontally.\n *\n * @returns Created table cell, if any were created.\n */\nexport function splitHorizontally( tableCell: Element, splitRow: number, writer: Writer ): Element | null {\n\tconst tableRow = tableCell.parent as Node;\n\tconst table = tableRow.parent as Element;\n\tconst rowIndex = tableRow.index!;\n\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) as string );\n\tconst newRowspan = splitRow - rowIndex;\n\n\tconst newCellAttributes: CellAttributes = {};\n\tconst newCellRowSpan = rowspan - newRowspan;\n\n\tif ( newCellRowSpan > 1 ) {\n\t\tnewCellAttributes.rowspan = newCellRowSpan;\n\t}\n\n\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) as string || '1' );\n\n\tif ( colspan > 1 ) {\n\t\tnewCellAttributes.colspan = colspan;\n\t}\n\n\tconst startRow = rowIndex;\n\tconst endRow = startRow + newRowspan;\n\tconst tableMap = [ ...new TableWalker( table, { startRow, endRow, includeAllSlots: true } ) ];\n\n\tlet newCell = null;\n\tlet columnIndex;\n\n\tfor ( const tableSlot of tableMap ) {\n\t\tconst { row, column, cell } = tableSlot;\n\n\t\tif ( cell === tableCell && columnIndex === undefined ) {\n\t\t\tcolumnIndex = column;\n\t\t}\n\n\t\tif ( columnIndex !== undefined && columnIndex === column && row === endRow ) {\n\t\t\tnewCell = createEmptyTableCell( writer, tableSlot.getPositionBefore(), newCellAttributes );\n\t\t}\n\t}\n\n\t// Update the rowspan attribute after updating table.\n\tupdateNumericAttribute( 'rowspan', newRowspan, tableCell, writer );\n\n\treturn newCell;\n}\n\n/**\n * Returns slot info of cells that starts before and overlaps a given column.\n *\n * In a table below, passing `overlapColumn = 3`\n *\n *    0   1   2   3   4\n *  ┌───────┬───────┬───┐\n *  │ a     │ b     │ c │\n *  │───┬───┴───────┼───┤\n *  │ d │ e         │ f │\n *  ├───┼───┬───────┴───┤\n *  │ g │ h │ i         │\n *  ├───┼───┼───┬───────┤\n *  │ j │ k │ l │ m     │\n *  ├───┼───┴───┼───┬───┤\n *  │ n │ o     │ p │ q │\n *  └───┴───────┴───┴───┘\n *                ^\n *                Overlap column to check\n *\n * will return slot info for cells: \"b\", \"e\", \"i\".\n *\n * @param table The table to check.\n * @param overlapColumn The index of the column to check.\n */\nexport function getHorizontallyOverlappingCells( table: Element, overlapColumn: number ): Array<TableSlot> {\n\tconst cellsToSplit = [];\n\n\tconst tableWalker = new TableWalker( table );\n\n\tfor ( const slotInfo of tableWalker ) {\n\t\tconst { column, cellWidth } = slotInfo;\n\t\tconst cellEndColumn = column + cellWidth - 1;\n\n\t\tif ( column < overlapColumn && overlapColumn <= cellEndColumn ) {\n\t\t\tcellsToSplit.push( slotInfo );\n\t\t}\n\t}\n\n\treturn cellsToSplit;\n}\n\n/**\n * Splits the table cell vertically.\n *\n * @param columnIndex The table cell column index.\n * @param splitColumn The index of column to split cell on.\n * @returns Created table cell.\n */\nexport function splitVertically( tableCell: Element, columnIndex: number, splitColumn: number, writer: Writer ): Element {\n\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) as string );\n\tconst newColspan = splitColumn - columnIndex;\n\n\tconst newCellAttributes: CellAttributes = {};\n\tconst newCellColSpan = colspan - newColspan;\n\n\tif ( newCellColSpan > 1 ) {\n\t\tnewCellAttributes.colspan = newCellColSpan;\n\t}\n\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) as string || '1' );\n\n\tif ( rowspan > 1 ) {\n\t\tnewCellAttributes.rowspan = rowspan;\n\t}\n\n\tconst newCell = createEmptyTableCell( writer, writer.createPositionAfter( tableCell ), newCellAttributes );\n\n\t// Update the colspan attribute after updating table.\n\tupdateNumericAttribute( 'colspan', newColspan, tableCell, writer );\n\n\treturn newCell;\n}\n\n/**\n * Adjusts table cell dimensions to not exceed limit row and column.\n *\n * If table cell width (or height) covers a column (or row) that is after a limit column (or row)\n * this method will trim \"colspan\" (or \"rowspan\") attribute so the table cell will fit in a defined limits.\n */\nexport function trimTableCellIfNeeded(\n\ttableCell: Element,\n\tcellRow: number,\n\tcellColumn: number,\n\tlimitRow: number,\n\tlimitColumn: number,\n\twriter: Writer\n): void {\n\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) as string || '1' );\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) as string || '1' );\n\n\tconst endColumn = cellColumn + colspan - 1;\n\n\tif ( endColumn > limitColumn ) {\n\t\tconst trimmedSpan = limitColumn - cellColumn + 1;\n\n\t\tupdateNumericAttribute( 'colspan', trimmedSpan, tableCell, writer, 1 );\n\t}\n\n\tconst endRow = cellRow + rowspan - 1;\n\n\tif ( endRow > limitRow ) {\n\t\tconst trimmedSpan = limitRow - cellRow + 1;\n\n\t\tupdateNumericAttribute( 'rowspan', trimmedSpan, tableCell, writer, 1 );\n\t}\n}\n\n/**\n * Sets proper heading attributes to a cropped table.\n */\nfunction addHeadingsToCroppedTable( croppedTable: Element, sourceTable: Element, startRow: number, startColumn: number, writer: Writer ) {\n\tconst headingRows = parseInt( sourceTable.getAttribute( 'headingRows' ) as string || '0' );\n\n\tif ( headingRows > 0 ) {\n\t\tconst headingRowsInCrop = headingRows - startRow;\n\t\tupdateNumericAttribute( 'headingRows', headingRowsInCrop, croppedTable, writer, 0 );\n\t}\n\n\tconst headingColumns = parseInt( sourceTable.getAttribute( 'headingColumns' ) as string || '0' );\n\n\tif ( headingColumns > 0 ) {\n\t\tconst headingColumnsInCrop = headingColumns - startColumn;\n\t\tupdateNumericAttribute( 'headingColumns', headingColumnsInCrop, croppedTable, writer, 0 );\n\t}\n}\n\n/**\n * Removes columns that have no cells anchored.\n *\n * In table below:\n *\n *     +----+----+----+----+----+----+----+\n *     | 00 | 01      | 03 | 04      | 06 |\n *     +----+----+----+----+         +----+\n *     | 10 | 11      | 13 |         | 16 |\n *     +----+----+----+----+----+----+----+\n *     | 20 | 21      | 23 | 24      | 26 |\n *     +----+----+----+----+----+----+----+\n *                  ^--- empty ---^\n *\n * Will remove columns 2 and 5.\n *\n * **Note:** This is a low-level helper method for clearing invalid model state when doing table modifications.\n * To remove a column from a table use {@link module:table/tableutils~TableUtils#removeColumns `TableUtils.removeColumns()`}.\n *\n * @internal\n * @returns True if removed some columns.\n */\nexport function removeEmptyColumns( table: Element, tableUtils: TableUtils ): boolean {\n\tconst width = tableUtils.getColumns( table );\n\tconst columnsMap = new Array( width ).fill( 0 );\n\n\tfor ( const { column } of new TableWalker( table ) ) {\n\t\tcolumnsMap[ column ]++;\n\t}\n\n\tconst emptyColumns = columnsMap.reduce( ( result, cellsCount, column ) => {\n\t\treturn cellsCount ? result : [ ...result, column ];\n\t}, [] );\n\n\tif ( emptyColumns.length > 0 ) {\n\t\t// Remove only last empty column because it will recurrently trigger removing empty rows.\n\t\tconst emptyColumn = emptyColumns[ emptyColumns.length - 1 ];\n\n\t\t// @if CK_DEBUG_TABLE // console.log( `Removing empty column: ${ emptyColumn }.` );\n\t\ttableUtils.removeColumns( table, { at: emptyColumn } );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Removes rows that have no cells anchored.\n *\n * In table below:\n *\n *     +----+----+----+\n *     | 00 | 01 | 02 |\n *     +----+----+----+\n *     | 10 | 11 | 12 |\n *     +    +    +    +\n *     |    |    |    | <-- empty\n *     +----+----+----+\n *     | 30 | 31 | 32 |\n *     +----+----+----+\n *     | 40      | 42 |\n *     +         +    +\n *     |         |    | <-- empty\n *     +----+----+----+\n *     | 60 | 61 | 62 |\n *     +----+----+----+\n *\n * Will remove rows 2 and 5.\n *\n * **Note:** This is a low-level helper method for clearing invalid model state when doing table modifications.\n * To remove a row from a table use {@link module:table/tableutils~TableUtils#removeRows `TableUtils.removeRows()`}.\n *\n * @internal\n * @returns True if removed some rows.\n */\nexport function removeEmptyRows( table: Element, tableUtils: TableUtils ): boolean {\n\tconst emptyRows = [];\n\tconst tableRowCount = tableUtils.getRows( table );\n\n\tfor ( let rowIndex = 0; rowIndex < tableRowCount; rowIndex++ ) {\n\t\tconst tableRow = table.getChild( rowIndex ) as Element;\n\n\t\tif ( tableRow.isEmpty ) {\n\t\t\temptyRows.push( rowIndex );\n\t\t}\n\t}\n\n\tif ( emptyRows.length > 0 ) {\n\t\t// Remove only last empty row because it will recurrently trigger removing empty columns.\n\t\tconst emptyRow = emptyRows[ emptyRows.length - 1 ];\n\n\t\t// @if CK_DEBUG_TABLE // console.log( `Removing empty row: ${ emptyRow }.` );\n\t\ttableUtils.removeRows( table, { at: emptyRow } );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Removes rows and columns that have no cells anchored.\n *\n * In table below:\n *\n *     +----+----+----+----+\n *     | 00      | 02      |\n *     +----+----+         +\n *     | 10      |         |\n *     +----+----+----+----+\n *     | 20      | 22 | 23 |\n *     +         +    +    +\n *     |         |    |    | <-- empty row\n *     +----+----+----+----+\n *             ^--- empty column\n *\n * Will remove row 3 and column 1.\n *\n * **Note:** This is a low-level helper method for clearing invalid model state when doing table modifications.\n * To remove a rows from a table use {@link module:table/tableutils~TableUtils#removeRows `TableUtils.removeRows()`} and\n * {@link module:table/tableutils~TableUtils#removeColumns `TableUtils.removeColumns()`} to remove a column.\n *\n * @internal\n */\nexport function removeEmptyRowsColumns( table: Element, tableUtils: TableUtils ): void {\n\tconst removedColumns = removeEmptyColumns( table, tableUtils );\n\n\t// If there was some columns removed then cleaning empty rows was already triggered.\n\tif ( !removedColumns ) {\n\t\tremoveEmptyRows( table, tableUtils );\n\t}\n}\n\n/**\n * Returns adjusted last row index if selection covers part of a row with empty slots (spanned by other cells).\n * The `dimensions.lastRow` is equal to last row index but selection might be bigger.\n *\n * This happens *only* on rectangular selection so we analyze a case like this:\n *\n *        +---+---+---+---+\n *      0 | a | b | c | d |\n *        +   +   +---+---+\n *      1 |   | e | f | g |\n *        +   +---+   +---+\n *      2 |   | h |   | i | <- last row, each cell has rowspan = 2,\n *        +   +   +   +   +    so we need to return 3, not 2\n *      3 |   |   |   |   |\n *        +---+---+---+---+\n *\n * @returns Adjusted last row index.\n */\nexport function adjustLastRowIndex(\n\ttable: Element,\n\tdimensions: {\n\t\tfirstRow: number;\n\t\tfirstColumn: number;\n\t\tlastRow: number;\n\t\tlastColumn: number;\n\t}\n): number {\n\tconst lastRowMap = Array.from( new TableWalker( table, {\n\t\tstartColumn: dimensions.firstColumn,\n\t\tendColumn: dimensions.lastColumn,\n\t\trow: dimensions.lastRow\n\t} ) );\n\n\tconst everyCellHasSingleRowspan = lastRowMap.every( ( { cellHeight } ) => cellHeight === 1 );\n\n\t// It is a \"flat\" row, so the last row index is OK.\n\tif ( everyCellHasSingleRowspan ) {\n\t\treturn dimensions.lastRow;\n\t}\n\n\t// Otherwise get any cell's rowspan and adjust the last row index.\n\tconst rowspanAdjustment = lastRowMap[ 0 ].cellHeight - 1;\n\treturn dimensions.lastRow + rowspanAdjustment;\n}\n\n/**\n * Returns adjusted last column index if selection covers part of a column with empty slots (spanned by other cells).\n * The `dimensions.lastColumn` is equal to last column index but selection might be bigger.\n *\n * This happens *only* on rectangular selection so we analyze a case like this:\n *\n *       0   1   2   3\n *     +---+---+---+---+\n *     | a             |\n *     +---+---+---+---+\n *     | b | c | d     |\n *     +---+---+---+---+\n *     | e     | f     |\n *     +---+---+---+---+\n *     | g | h         |\n *     +---+---+---+---+\n *               ^\n *              last column, each cell has colspan = 2, so we need to return 3, not 2\n *\n * @returns Adjusted last column index.\n */\nexport function adjustLastColumnIndex(\n\ttable: Element,\n\tdimensions: {\n\t\tfirstRow: number;\n\t\tfirstColumn: number;\n\t\tlastRow: number;\n\t\tlastColumn: number;\n\t}\n): number {\n\tconst lastColumnMap = Array.from( new TableWalker( table, {\n\t\tstartRow: dimensions.firstRow,\n\t\tendRow: dimensions.lastRow,\n\t\tcolumn: dimensions.lastColumn\n\t} ) );\n\n\tconst everyCellHasSingleColspan = lastColumnMap.every( ( { cellWidth } ) => cellWidth === 1 );\n\n\t// It is a \"flat\" column, so the last column index is OK.\n\tif ( everyCellHasSingleColspan ) {\n\t\treturn dimensions.lastColumn;\n\t}\n\n\t// Otherwise get any cell's colspan and adjust the last column index.\n\tconst colspanAdjustment = lastColumnMap[ 0 ].cellWidth - 1;\n\treturn dimensions.lastColumn + colspanAdjustment;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/mergecellcommand\n */\n\nimport type {\n\tElement,\n\tNode,\n\tWriter\n} from 'ckeditor5/src/engine';\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport TableWalker from '../tablewalker';\nimport { isHeadingColumnCell } from '../utils/common';\nimport { removeEmptyRowsColumns } from '../utils/structure';\nimport type { ArrowKeyCodeDirection } from 'ckeditor5/src/utils';\n\nimport type TableUtils from '../tableutils';\n\n/**\n * The merge cell command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'mergeTableCellRight'`, `'mergeTableCellLeft'`,\n * `'mergeTableCellUp'` and `'mergeTableCellDown'` editor commands.\n *\n * To merge a table cell at the current selection with another cell, execute the command corresponding with the preferred direction.\n *\n * For example, to merge with a cell to the right:\n *\n * ```ts\n * editor.execute( 'mergeTableCellRight' );\n * ```\n *\n * **Note**: If a table cell has a different [`rowspan`](https://www.w3.org/TR/html50/tabular-data.html#attr-tdth-rowspan)\n * (for `'mergeTableCellRight'` and `'mergeTableCellLeft'`) or [`colspan`](https://www.w3.org/TR/html50/tabular-data.html#attr-tdth-colspan)\n * (for `'mergeTableCellUp'` and `'mergeTableCellDown'`), the command will be disabled.\n */\nexport default class MergeCellCommand extends Command {\n\t/**\n\t * The direction that indicates which cell will be merged with the currently selected one.\n\t */\n\tpublic readonly direction: ArrowKeyCodeDirection;\n\n\t/**\n\t * Whether the merge is horizontal (left/right) or vertical (up/down).\n\t */\n\tpublic readonly isHorizontal: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic declare value: Node | undefined;\n\n\t/**\n\t * Creates a new `MergeCellCommand` instance.\n\t *\n\t * @param editor The editor on which this command will be used.\n\t * @param options.direction Indicates which cell to merge with the currently selected one.\n\t * Possible values are: `'left'`, `'right'`, `'up'` and `'down'`.\n\t */\n\tconstructor( editor: Editor, options: { direction: ArrowKeyCodeDirection } ) {\n\t\tsuper( editor );\n\n\t\tthis.direction = options.direction;\n\t\tthis.isHorizontal = this.direction == 'right' || this.direction == 'left';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst cellToMerge = this._getMergeableCell();\n\n\t\tthis.value = cellToMerge;\n\t\tthis.isEnabled = !!cellToMerge;\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * Depending on the command's {@link #direction} value, it will merge the cell that is to the `'left'`, `'right'`, `'up'` or `'down'`.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCell = tableUtils.getTableCellsContainingSelection( doc.selection )[ 0 ];\n\n\t\tconst cellToMerge = this.value!;\n\t\tconst direction = this.direction;\n\n\t\tmodel.change( writer => {\n\t\t\tconst isMergeNext = direction == 'right' || direction == 'down';\n\n\t\t\t// The merge mechanism is always the same so sort cells to be merged.\n\t\t\tconst cellToExpand = ( isMergeNext ? tableCell : cellToMerge ) as Element;\n\t\t\tconst cellToRemove = ( isMergeNext ? cellToMerge : tableCell ) as Element;\n\n\t\t\t// Cache the parent of cell to remove for later check.\n\t\t\tconst removedTableCellRow = cellToRemove.parent as Element;\n\n\t\t\tmergeTableCells( cellToRemove, cellToExpand, writer );\n\n\t\t\tconst spanAttribute = this.isHorizontal ? 'colspan' : 'rowspan';\n\t\t\tconst cellSpan = parseInt( tableCell.getAttribute( spanAttribute ) as string || '1' );\n\t\t\tconst cellToMergeSpan = parseInt( cellToMerge.getAttribute( spanAttribute ) as string || '1' );\n\n\t\t\t// Update table cell span attribute and merge set selection on merged contents.\n\t\t\twriter.setAttribute( spanAttribute, cellSpan + cellToMergeSpan, cellToExpand );\n\t\t\twriter.setSelection( writer.createRangeIn( cellToExpand ) );\n\n\t\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\t\tconst table = removedTableCellRow.findAncestor( 'table' )!;\n\n\t\t\t// Remove empty rows and columns after merging.\n\t\t\tremoveEmptyRowsColumns( table, tableUtils );\n\t\t} );\n\t}\n\n\t/**\n\t * Returns a cell that can be merged with the current cell depending on the command's direction.\n\t */\n\tprivate _getMergeableCell(): Node | undefined {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCell = tableUtils.getTableCellsContainingSelection( doc.selection )[ 0 ];\n\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// First get the cell on proper direction.\n\t\tconst cellToMerge = this.isHorizontal ?\n\t\t\tgetHorizontalCell( tableCell, this.direction, tableUtils ) :\n\t\t\tgetVerticalCell( tableCell, this.direction, tableUtils );\n\n\t\tif ( !cellToMerge ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If found check if the span perpendicular to merge direction is equal on both cells.\n\t\tconst spanAttribute = this.isHorizontal ? 'rowspan' : 'colspan';\n\t\tconst span = parseInt( tableCell.getAttribute( spanAttribute ) as string || '1' );\n\n\t\tconst cellToMergeSpan = parseInt( cellToMerge.getAttribute( spanAttribute ) as string || '1' );\n\n\t\tif ( cellToMergeSpan === span ) {\n\t\t\treturn cellToMerge;\n\t\t}\n\t}\n}\n\n/**\n * Returns the cell that can be merged horizontally.\n */\nfunction getHorizontalCell( tableCell: Element, direction: ArrowKeyCodeDirection, tableUtils: TableUtils ) {\n\tconst tableRow = tableCell.parent!;\n\tconst table = tableRow.parent as Element;\n\tconst horizontalCell = direction == 'right' ? tableCell.nextSibling : tableCell.previousSibling;\n\tconst hasHeadingColumns = ( table.getAttribute( 'headingColumns' ) || 0 ) > 0;\n\n\tif ( !horizontalCell ) {\n\t\treturn;\n\t}\n\n\t// Sort cells:\n\tconst cellOnLeft = ( direction == 'right' ? tableCell : horizontalCell ) as Element;\n\tconst cellOnRight = ( direction == 'right' ? horizontalCell : tableCell ) as Element;\n\n\t// Get their column indexes:\n\tconst { column: leftCellColumn } = tableUtils.getCellLocation( cellOnLeft );\n\tconst { column: rightCellColumn } = tableUtils.getCellLocation( cellOnRight );\n\n\tconst leftCellSpan = parseInt( cellOnLeft.getAttribute( 'colspan' ) as string || '1' );\n\n\tconst isCellOnLeftInHeadingColumn = isHeadingColumnCell( tableUtils, cellOnLeft );\n\tconst isCellOnRightInHeadingColumn = isHeadingColumnCell( tableUtils, cellOnRight );\n\n\t// We cannot merge heading columns cells with regular cells.\n\tif ( hasHeadingColumns && isCellOnLeftInHeadingColumn != isCellOnRightInHeadingColumn ) {\n\t\treturn;\n\t}\n\n\t// The cell on the right must have index that is distant to the cell on the left by the left cell's width (colspan).\n\tconst cellsAreTouching = leftCellColumn + leftCellSpan === rightCellColumn;\n\n\t// If the right cell's column index is different it means that there are rowspanned cells between them.\n\treturn cellsAreTouching ? horizontalCell : undefined;\n}\n\n/**\n * Returns the cell that can be merged vertically.\n */\nfunction getVerticalCell( tableCell: Element, direction: ArrowKeyCodeDirection, tableUtils: TableUtils ): Node | null {\n\tconst tableRow = tableCell.parent as Element;\n\tconst table = tableRow.parent as Element;\n\n\tconst rowIndex = table.getChildIndex( tableRow )!;\n\n\t// Don't search for mergeable cell if direction points out of the table.\n\tif ( ( direction == 'down' && rowIndex === tableUtils.getRows( table ) - 1 ) || ( direction == 'up' && rowIndex === 0 ) ) {\n\t\treturn null;\n\t}\n\n\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) as string || '1' );\n\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\n\tconst isMergeWithBodyCell = direction == 'down' && ( rowIndex + rowspan ) === headingRows;\n\tconst isMergeWithHeadCell = direction == 'up' && rowIndex === headingRows;\n\n\t// Don't search for mergeable cell if direction points out of the current table section.\n\tif ( headingRows && ( isMergeWithBodyCell || isMergeWithHeadCell ) ) {\n\t\treturn null;\n\t}\n\n\tconst currentCellRowSpan = parseInt( tableCell.getAttribute( 'rowspan' ) as string || '1' );\n\tconst rowOfCellToMerge = direction == 'down' ? rowIndex + currentCellRowSpan : rowIndex;\n\n\tconst tableMap = [ ...new TableWalker( table, { endRow: rowOfCellToMerge } ) ];\n\n\tconst currentCellData = tableMap.find( value => value.cell === tableCell )!;\n\tconst mergeColumn = currentCellData.column;\n\n\tconst cellToMergeData = tableMap.find( ( { row, cellHeight, column } ) => {\n\t\tif ( column !== mergeColumn ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tif ( direction == 'down' ) {\n\t\t\t// If merging a cell below the mergeRow is already calculated.\n\t\t\treturn row === rowOfCellToMerge;\n\t\t} else {\n\t\t\t// If merging a cell above calculate if it spans to mergeRow.\n\t\t\treturn rowOfCellToMerge === row + cellHeight;\n\t\t}\n\t} );\n\n\treturn cellToMergeData && cellToMergeData.cell ? cellToMergeData.cell : null;\n}\n\n/**\n * Merges two table cells. It will ensure that after merging cells with an empty paragraph, the resulting table cell will only have one\n * paragraph. If one of the merged table cells is empty, the merged table cell will have the contents of the non-empty table cell.\n * If both are empty, the merged table cell will have only one empty paragraph.\n */\nfunction mergeTableCells( cellToRemove: Element, cellToExpand: Element, writer: Writer ) {\n\tif ( !isEmpty( cellToRemove ) ) {\n\t\tif ( isEmpty( cellToExpand ) ) {\n\t\t\twriter.remove( writer.createRangeIn( cellToExpand ) );\n\t\t}\n\n\t\twriter.move( writer.createRangeIn( cellToRemove ), writer.createPositionAt( cellToExpand, 'end' ) );\n\t}\n\n\t// Remove merged table cell.\n\twriter.remove( cellToRemove );\n}\n\n/**\n * Checks if the passed table cell contains an empty paragraph.\n */\nfunction isEmpty( tableCell: Element ): boolean {\n\tconst firstTableChild = tableCell.getChild( 0 ) as Element;\n\n\treturn tableCell.childCount == 1 && firstTableChild.is( 'element', 'paragraph' ) && firstTableChild.isEmpty;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/removerowcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport type { Element, Node } from 'ckeditor5/src/engine';\nimport type TableUtils from '../tableutils';\n\n/**\n * The remove row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'removeTableRow'` editor command.\n *\n * To remove the row containing the selected cell, execute the command:\n *\n * ```ts\n * editor.execute( 'removeTableRow' );\n * ```\n */\nexport default class RemoveRowCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\t\tconst firstCell = selectedCells[ 0 ];\n\n\t\tif ( firstCell ) {\n\t\t\tconst table = firstCell.findAncestor( 'table' )!;\n\t\t\tconst tableRowCount = tableUtils.getRows( table );\n\t\t\tconst lastRowIndex = tableRowCount - 1;\n\n\t\t\tconst selectedRowIndexes = tableUtils.getRowIndexes( selectedCells );\n\n\t\t\tconst areAllRowsSelected = selectedRowIndexes.first === 0 && selectedRowIndexes.last === lastRowIndex;\n\n\t\t\t// Disallow selecting whole table -> delete whole table should be used instead.\n\t\t\tthis.isEnabled = !areAllRowsSelected;\n\t\t} else {\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\n\t\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst removedRowIndexes = tableUtils.getRowIndexes( referenceCells );\n\n\t\tconst firstCell = referenceCells[ 0 ];\n\t\tconst table = firstCell.findAncestor( 'table' )!;\n\n\t\tconst columnIndexToFocus = tableUtils.getCellLocation( firstCell ).column;\n\n\t\tmodel.change( writer => {\n\t\t\tconst rowsToRemove = removedRowIndexes.last - removedRowIndexes.first + 1;\n\n\t\t\ttableUtils.removeRows( table, {\n\t\t\t\tat: removedRowIndexes.first,\n\t\t\t\trows: rowsToRemove\n\t\t\t} );\n\n\t\t\tconst cellToFocus = getCellToFocus( table, removedRowIndexes.first, columnIndexToFocus, tableUtils.getRows( table ) );\n\n\t\t\twriter.setSelection( writer.createPositionAt( cellToFocus, 0 ) );\n\t\t} );\n\t}\n}\n\n/**\n * Returns a cell that should be focused before removing the row, belonging to the same column as the currently focused cell.\n * - If the row was not the last one, the cell to focus will be in the row that followed it (before removal).\n * - If the row was the last one, the cell to focus will be in the row that preceded it (before removal).\n */\nfunction getCellToFocus( table: Element, removedRowIndex: number, columnToFocus: number, tableRowCount: number ): Node {\n\t// Don't go beyond last row's index.\n\tconst row = table.getChild( Math.min( removedRowIndex, tableRowCount - 1 ) ) as Element;\n\n\t// Default to first table cell.\n\tlet cellToFocus = row.getChild( 0 )!;\n\tlet column = 0;\n\n\tfor ( const tableCell of row.getChildren() ) {\n\t\tif ( column > columnToFocus ) {\n\t\t\treturn cellToFocus;\n\t\t}\n\n\t\tcellToFocus = tableCell;\n\t\tcolumn += parseInt( tableCell.getAttribute( 'colspan' ) as string || '1' );\n\t}\n\n\treturn cellToFocus;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/removecolumncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport type {\n\tDocumentSelection,\n\tElement,\n\tSelection\n} from 'ckeditor5/src/engine';\n\nimport TableWalker, { type TableSlot } from '../tablewalker';\nimport type TableUtils from '../tableutils';\n\n/**\n * The remove column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'removeTableColumn'` editor command.\n *\n * To remove the column containing the selected cell, execute the command:\n *\n * ```ts\n * editor.execute( 'removeTableColumn' );\n * ```\n */\nexport default class RemoveColumnCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\t\tconst firstCell = selectedCells[ 0 ];\n\n\t\tif ( firstCell ) {\n\t\t\tconst table = firstCell.findAncestor( 'table' )!;\n\t\t\tconst tableColumnCount = tableUtils.getColumns( table );\n\n\t\t\tconst { first, last } = tableUtils.getColumnIndexes( selectedCells );\n\n\t\t\tthis.isEnabled = last - first < ( tableColumnCount - 1 );\n\t\t} else {\n\t\t\tthis.isEnabled = false;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst [ firstCell, lastCell ] = getBoundaryCells( this.editor.model.document.selection, tableUtils );\n\t\tconst table = firstCell.parent!.parent as Element;\n\n\t\t// Cache the table before removing or updating colspans.\n\t\tconst tableMap = [ ...new TableWalker( table ) ];\n\n\t\t// Store column indexes of removed columns.\n\t\tconst removedColumnIndexes = {\n\t\t\tfirst: tableMap.find( value => value.cell === firstCell )!.column,\n\t\t\tlast: tableMap.find( value => value.cell === lastCell )!.column\n\t\t};\n\n\t\tconst cellToFocus = getCellToFocus( tableMap, firstCell, lastCell, removedColumnIndexes )!;\n\n\t\tthis.editor.model.change( writer => {\n\t\t\tconst columnsToRemove = removedColumnIndexes.last - removedColumnIndexes.first + 1;\n\n\t\t\ttableUtils.removeColumns( table, {\n\t\t\t\tat: removedColumnIndexes.first,\n\t\t\t\tcolumns: columnsToRemove\n\t\t\t} );\n\n\t\t\twriter.setSelection( writer.createPositionAt( cellToFocus, 0 ) );\n\t\t} );\n\t}\n}\n\n/**\n * Returns a proper table cell to focus after removing a column.\n * - selection is on last table cell it will return previous cell.\n */\nfunction getCellToFocus(\n\ttableMap: Array<TableSlot>,\n\tfirstCell: Element,\n\tlastCell: Element,\n\tremovedColumnIndexes: {\n\t\tfirst: number;\n\t\tlast: number;\n\t}\n) {\n\tconst colspan = parseInt( lastCell.getAttribute( 'colspan' ) as string || '1' );\n\n\t// If the table cell is spanned over 2+ columns - it will be truncated so the selection should\n\t// stay in that cell.\n\tif ( colspan > 1 ) {\n\t\treturn lastCell;\n\t}\n\t// Normally, look for the cell in the same row that precedes the first cell to put selection there (\"column on the left\").\n\t// If the deleted column is the first column of the table, there will be no predecessor: use the cell\n\t// from the column that follows then (also in the same row).\n\telse if ( firstCell.previousSibling || lastCell.nextSibling ) {\n\t\treturn lastCell.nextSibling || firstCell.previousSibling;\n\t}\n\t// It can happen that table cells have no siblings in a row, for instance, when there are row spans\n\t// in the table (in the previous row). Then just look for the closest cell that is in a column\n\t// that will not be removed to put the selection there.\n\telse {\n\t\t// Look for any cell in a column that precedes the first removed column.\n\t\tif ( removedColumnIndexes.first ) {\n\t\t\treturn tableMap.reverse().find( ( { column } ) => {\n\t\t\t\treturn column < removedColumnIndexes.first;\n\t\t\t} )!.cell;\n\t\t}\n\t\t// If the first removed column is the first column of the table, then\n\t\t// look for any cell that is in a column that follows the last removed column.\n\t\telse {\n\t\t\treturn tableMap.reverse().find( ( { column } ) => {\n\t\t\t\treturn column > removedColumnIndexes.last;\n\t\t\t} )!.cell;\n\t\t}\n\t}\n}\n\n/**\n * Returns helper object returning the first and the last cell contained in given selection, based on DOM order.\n */\nfunction getBoundaryCells( selection: Selection | DocumentSelection, tableUtils: TableUtils ) {\n\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( selection );\n\tconst firstCell = referenceCells[ 0 ];\n\tconst lastCell = referenceCells.pop()!;\n\n\tconst returnValue = [ firstCell, lastCell ];\n\n\treturn firstCell.isBefore( lastCell ) ? returnValue : returnValue.reverse();\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/setheaderrowcommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport type { Element } from 'ckeditor5/src/engine';\nimport type TableUtils from '../tableutils';\n\nimport { updateNumericAttribute } from '../utils/common';\nimport { getVerticallyOverlappingCells, splitHorizontally } from '../utils/structure';\n\n/**\n * The header row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'setTableColumnHeader'` editor command.\n *\n * You can make the row containing the selected cell a [header](https://www.w3.org/TR/html50/tabular-data.html#the-th-element) by executing:\n *\n * ```ts\n * editor.execute( 'setTableRowHeader' );\n * ```\n *\n * **Note:** All preceding rows will also become headers. If the current row is already a header, executing this command\n * will make it a regular row back again (including the following rows).\n */\nexport default class SetHeaderRowCommand extends Command {\n\t/**\n\t * Flag indicating whether the command is active. The command is active when the\n\t * {@link module:engine/model/selection~Selection} is in a header row.\n\t *\n\t * @observable\n\t */\n\tpublic declare value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst isInTable = selectedCells.length > 0;\n\n\t\tthis.isEnabled = isInTable;\n\t\tthis.value = isInTable && selectedCells.every( cell => this._isInHeading( cell, cell.parent!.parent as Element ) );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is in a non-header row, the command will set the `headingRows` table attribute to cover that row.\n\t *\n\t * When the selection is already in a header row, it will set `headingRows` so the heading section will end before that row.\n\t *\n\t * @fires execute\n\t * @param options.forceValue If set, the command will set (`true`) or unset (`false`) the header rows according to\n\t * the `forceValue` parameter instead of the current model state.\n\t */\n\tpublic override execute( options: { forceValue?: boolean } = {} ): void {\n\t\tif ( options.forceValue === this.value ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst table = selectedCells[ 0 ].findAncestor( 'table' )!;\n\n\t\tconst { first, last } = tableUtils.getRowIndexes( selectedCells );\n\t\tconst headingRowsToSet = this.value ? first : last + 1;\n\t\tconst currentHeadingRows = table.getAttribute( 'headingRows' ) as number || 0;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( headingRowsToSet ) {\n\t\t\t\t// Changing heading rows requires to check if any of a heading cell is overlapping vertically the table head.\n\t\t\t\t// Any table cell that has a rowspan attribute > 1 will not exceed the table head so we need to fix it in rows below.\n\t\t\t\tconst startRow = headingRowsToSet > currentHeadingRows ? currentHeadingRows : 0;\n\t\t\t\tconst overlappingCells = getVerticallyOverlappingCells( table, headingRowsToSet, startRow );\n\n\t\t\t\tfor ( const { cell } of overlappingCells ) {\n\t\t\t\t\tsplitHorizontally( cell, headingRowsToSet, writer );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tupdateNumericAttribute( 'headingRows', headingRowsToSet, table, writer, 0 );\n\t\t} );\n\t}\n\n\t/**\n\t * Checks if a table cell is in the heading section.\n\t */\n\tprivate _isInHeading( tableCell: Element, table: Element ): boolean {\n\t\tconst headingRows = parseInt( table.getAttribute( 'headingRows' ) as string || '0' );\n\n\t\treturn !!headingRows && ( tableCell.parent as Element ).index! < headingRows;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/setheadercolumncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport type TableUtils from '../tableutils';\n\nimport {\n\tisHeadingColumnCell,\n\tupdateNumericAttribute\n} from '../utils/common';\nimport { getHorizontallyOverlappingCells, splitVertically } from '../utils/structure';\n\n/**\n * The header column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'setTableColumnHeader'` editor command.\n *\n * You can make the column containing the selected cell a [header](https://www.w3.org/TR/html50/tabular-data.html#the-th-element)\n * by executing:\n *\n * ```ts\n * editor.execute( 'setTableColumnHeader' );\n * ```\n *\n * **Note:** All preceding columns will also become headers. If the current column is already a header, executing this command\n * will make it a regular column back again (including the following columns).\n */\nexport default class SetHeaderColumnCommand extends Command {\n\t/**\n\t * Flag indicating whether the command is active. The command is active when the\n\t * {@link module:engine/model/selection~Selection} is in a header column.\n\t *\n\t * @observable\n\t */\n\tpublic declare value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst isInTable = selectedCells.length > 0;\n\n\t\tthis.isEnabled = isInTable;\n\t\tthis.value = isInTable && selectedCells.every( cell => isHeadingColumnCell( tableUtils, cell ) );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * When the selection is in a non-header column, the command will set the `headingColumns` table attribute to cover that column.\n\t *\n\t * When the selection is already in a header column, it will set `headingColumns` so the heading section will end before that column.\n\t *\n\t * @fires execute\n\t * @param options.forceValue If set, the command will set (`true`) or unset (`false`) the header columns according to\n\t * the `forceValue` parameter instead of the current model state.\n\t */\n\tpublic override execute( options: { forceValue?: boolean } = {} ): void {\n\t\tif ( options.forceValue === this.value ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst table = selectedCells[ 0 ].findAncestor( 'table' )!;\n\n\t\tconst { first, last } = tableUtils.getColumnIndexes( selectedCells );\n\t\tconst headingColumnsToSet = this.value ? first : last + 1;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( headingColumnsToSet ) {\n\t\t\t\t// Changing heading columns requires to check if any of a heading cell is overlapping horizontally the table head.\n\t\t\t\t// Any table cell that has a colspan attribute > 1 will not exceed the table head so we need to fix it in columns before.\n\t\t\t\tconst overlappingCells = getHorizontallyOverlappingCells( table, headingColumnsToSet );\n\n\t\t\t\tfor ( const { cell, column } of overlappingCells ) {\n\t\t\t\t\tsplitVertically( cell, column, headingColumnsToSet, writer );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tupdateNumericAttribute( 'headingColumns', headingColumnsToSet, table, writer, 0 );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableutils\n */\n\nimport { CKEditorError } from 'ckeditor5/src/utils';\nimport { Plugin } from 'ckeditor5/src/core';\nimport type {\n\tDocumentSelection,\n\tElement,\n\tNode,\n\tPosition,\n\tRange,\n\tSelection,\n\tWriter\n} from 'ckeditor5/src/engine';\n\nimport TableWalker, { type TableWalkerOptions } from './tablewalker';\nimport { createEmptyTableCell, updateNumericAttribute } from './utils/common';\nimport { removeEmptyColumns, removeEmptyRows } from './utils/structure';\n\ntype Cell = { cell: Element; rowspan: number };\ntype CellsToMove = Map<number, Cell>;\ntype CellsToTrim = Array<Cell>;\n\ntype IndexesObject = { first: number; last: number };\n\n/**\n * The table utilities plugin.\n */\nexport default class TableUtils extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableUtils' {\n\t\treturn 'TableUtils';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tthis.decorate( 'insertColumns' );\n\t\tthis.decorate( 'insertRows' );\n\t}\n\n\t/**\n\t * Returns the table cell location as an object with table row and table column indexes.\n\t *\n\t * For instance, in the table below:\n\t *\n\t *      0   1   2   3\n\t *    +---+---+---+---+\n\t *  0 | a     | b | c |\n\t *    +       +   +---+\n\t *  1 |       |   | d |\n\t *    +---+---+   +---+\n\t *  2 | e     |   | f |\n\t *    +---+---+---+---+\n\t *\n\t * the method will return:\n\t *\n\t * ```ts\n\t * const cellA = table.getNodeByPath( [ 0, 0 ] );\n\t * editor.plugins.get( 'TableUtils' ).getCellLocation( cellA );\n\t * // will return { row: 0, column: 0 }\n\t *\n\t * const cellD = table.getNodeByPath( [ 1, 0 ] );\n\t * editor.plugins.get( 'TableUtils' ).getCellLocation( cellD );\n\t * // will return { row: 1, column: 3 }\n\t * ```\n\t *\n\t * @returns Returns a `{row, column}` object.\n\t */\n\tpublic getCellLocation( tableCell: Element ): { row: number; column: number } {\n\t\tconst tableRow = tableCell.parent!;\n\t\tconst table = tableRow.parent as Element;\n\n\t\tconst rowIndex = table.getChildIndex( tableRow as Node );\n\n\t\tconst tableWalker = new TableWalker( table, { row: rowIndex } );\n\n\t\tfor ( const { cell, row, column } of tableWalker ) {\n\t\t\tif ( cell === tableCell ) {\n\t\t\t\treturn { row, column };\n\t\t\t}\n\t\t}\n\n\t\t// Should be unreachable code.\n\t\t/* istanbul ignore next -- @preserve */\n\t\treturn undefined as any;\n\t}\n\n\t/**\n\t * Creates an empty table with a proper structure. The table needs to be inserted into the model,\n\t * for example, by using the {@link module:engine/model/model~Model#insertContent} function.\n\t *\n\t * ```ts\n\t * model.change( ( writer ) => {\n\t *   // Create a table of 2 rows and 7 columns:\n\t *   const table = tableUtils.createTable( writer, { rows: 2, columns: 7 } );\n\t *\n\t *   // Insert a table to the model at the best position taking the current selection:\n\t *   model.insertContent( table );\n\t * }\n\t * ```\n\t *\n\t * @param writer The model writer.\n\t * @param options.rows The number of rows to create. Default value is 2.\n\t * @param options.columns The number of columns to create. Default value is 2.\n\t * @param options.headingRows The number of heading rows. Default value is 0.\n\t * @param options.headingColumns The number of heading columns. Default value is 0.\n\t * @returns The created table element.\n\t */\n\tpublic createTable(\n\t\twriter: Writer,\n\t\toptions: {\n\t\t\trows?: number;\n\t\t\tcolumns?: number;\n\t\t\theadingRows?: number;\n\t\t\theadingColumns?: number;\n\t\t}\n\t): Element {\n\t\tconst table = writer.createElement( 'table' );\n\n\t\tconst rows = options.rows || 2;\n\t\tconst columns = options.columns || 2;\n\n\t\tcreateEmptyRows( writer, table, 0, rows, columns );\n\n\t\tif ( options.headingRows ) {\n\t\t\tupdateNumericAttribute( 'headingRows', Math.min( options.headingRows, rows ), table, writer, 0 );\n\t\t}\n\n\t\tif ( options.headingColumns ) {\n\t\t\tupdateNumericAttribute( 'headingColumns', Math.min( options.headingColumns, columns ), table, writer, 0 );\n\t\t}\n\n\t\treturn table;\n\t}\n\n\t/**\n\t * Inserts rows into a table.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'TableUtils' ).insertRows( table, { at: 1, rows: 2 } );\n\t * ```\n\t *\n\t * Assuming the table on the left, the above code will transform it to the table on the right:\n\t *\n\t *  row index\n\t *    0 +---+---+---+       `at` = 1,      +---+---+---+ 0\n\t *      | a | b | c |       `rows` = 2,    | a | b | c |\n\t *    1 +   +---+---+   <-- insert here    +   +---+---+ 1\n\t *      |   | d | e |                      |   |   |   |\n\t *    2 +   +---+---+       will give:     +   +---+---+ 2\n\t *      |   | f | g |                      |   |   |   |\n\t *    3 +---+---+---+                      +   +---+---+ 3\n\t *                                         |   | d | e |\n\t *                                         +   +---+---+ 4\n\t *                                         +   + f | g |\n\t *                                         +---+---+---+ 5\n\t *\n\t * @param table The table model element where the rows will be inserted.\n\t * @param options.at The row index at which the rows will be inserted.  Default value is 0.\n\t * @param options.rows The number of rows to insert.  Default value is 1.\n\t * @param options.copyStructureFromAbove The flag for copying row structure. Note that\n\t * the row structure will not be copied if this option is not provided.\n\t */\n\tpublic insertRows( table: Element, options: { at?: number; rows?: number; copyStructureFromAbove?: boolean } = {} ): void {\n\t\tconst model = this.editor.model;\n\n\t\tconst insertAt = options.at || 0;\n\t\tconst rowsToInsert = options.rows || 1;\n\t\tconst isCopyStructure = options.copyStructureFromAbove !== undefined;\n\t\tconst copyStructureFrom = options.copyStructureFromAbove ? insertAt - 1 : insertAt;\n\n\t\tconst rows = this.getRows( table );\n\t\tconst columns = this.getColumns( table );\n\n\t\tif ( insertAt > rows ) {\n\t\t\t/**\n\t\t\t * The `options.at` points at a row position that does not exist.\n\t\t\t *\n\t\t\t * @error tableutils-insertrows-insert-out-of-range\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'tableutils-insertrows-insert-out-of-range',\n\t\t\t\tthis,\n\t\t\t\t{ options }\n\t\t\t);\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tconst headingRows = table.getAttribute( 'headingRows' ) as number || 0;\n\n\t\t\t// Inserting rows inside heading section requires to update `headingRows` attribute as the heading section will grow.\n\t\t\tif ( headingRows > insertAt ) {\n\t\t\t\tupdateNumericAttribute( 'headingRows', headingRows + rowsToInsert, table, writer, 0 );\n\t\t\t}\n\n\t\t\t// Inserting at the end or at the beginning of a table doesn't require to calculate anything special.\n\t\t\tif ( !isCopyStructure && ( insertAt === 0 || insertAt === rows ) ) {\n\t\t\t\tcreateEmptyRows( writer, table, insertAt, rowsToInsert, columns );\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Iterate over all the rows above the inserted rows in order to check for the row-spanned cells.\n\t\t\tconst walkerEndRow = isCopyStructure ? Math.max( insertAt, copyStructureFrom ) : insertAt;\n\t\t\tconst tableIterator = new TableWalker( table, { endRow: walkerEndRow } );\n\n\t\t\t// Store spans of the reference row to reproduce it's structure. This array is column number indexed.\n\t\t\tconst rowColSpansMap = new Array( columns ).fill( 1 );\n\n\t\t\tfor ( const { row, column, cellHeight, cellWidth, cell } of tableIterator ) {\n\t\t\t\tconst lastCellRow = row + cellHeight - 1;\n\n\t\t\t\tconst isOverlappingInsertedRow = row < insertAt && insertAt <= lastCellRow;\n\t\t\t\tconst isReferenceRow = row <= copyStructureFrom && copyStructureFrom <= lastCellRow;\n\n\t\t\t\t// If the cell is row-spanned and overlaps the inserted row, then reserve space for it in the row map.\n\t\t\t\tif ( isOverlappingInsertedRow ) {\n\t\t\t\t\t// This cell overlaps the inserted rows so we need to expand it further.\n\t\t\t\t\twriter.setAttribute( 'rowspan', cellHeight + rowsToInsert, cell );\n\n\t\t\t\t\t// Mark this cell with negative number to indicate how many cells should be skipped when adding the new cells.\n\t\t\t\t\trowColSpansMap[ column ] = -cellWidth;\n\t\t\t\t}\n\t\t\t\t// Store the colspan from reference row.\n\t\t\t\telse if ( isCopyStructure && isReferenceRow ) {\n\t\t\t\t\trowColSpansMap[ column ] = cellWidth;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tfor ( let rowIndex = 0; rowIndex < rowsToInsert; rowIndex++ ) {\n\t\t\t\tconst tableRow = writer.createElement( 'tableRow' );\n\n\t\t\t\twriter.insert( tableRow, table, insertAt );\n\n\t\t\t\tfor ( let cellIndex = 0; cellIndex < rowColSpansMap.length; cellIndex++ ) {\n\t\t\t\t\tconst colspan = rowColSpansMap[ cellIndex ];\n\t\t\t\t\tconst insertPosition = writer.createPositionAt( tableRow, 'end' );\n\n\t\t\t\t\t// Insert the empty cell only if this slot is not row-spanned from any other cell.\n\t\t\t\t\tif ( colspan > 0 ) {\n\t\t\t\t\t\tcreateEmptyTableCell( writer, insertPosition, colspan > 1 ? { colspan } : undefined );\n\t\t\t\t\t}\n\n\t\t\t\t\t// Skip the col-spanned slots, there won't be any cells.\n\t\t\t\t\tcellIndex += Math.abs( colspan ) - 1;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Inserts columns into a table.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'TableUtils' ).insertColumns( table, { at: 1, columns: 2 } );\n\t * ```\n\t *\n\t * Assuming the table on the left, the above code will transform it to the table on the right:\n\t *\n\t *  0   1   2   3                   0   1   2   3   4   5\n\t *  +---+---+---+                   +---+---+---+---+---+\n\t *  | a     | b |                   | a             | b |\n\t *  +       +---+                   +               +---+\n\t *  |       | c |                   |               | c |\n\t *  +---+---+---+     will give:    +---+---+---+---+---+\n\t *  | d | e | f |                   | d |   |   | e | f |\n\t *  +---+   +---+                   +---+---+---+   +---+\n\t *  | g |   | h |                   | g |   |   |   | h |\n\t *  +---+---+---+                   +---+---+---+---+---+\n\t *  | i         |                   | i                 |\n\t *  +---+---+---+                   +---+---+---+---+---+\n\t *      ^---- insert here, `at` = 1, `columns` = 2\n\t *\n\t * @param table The table model element where the columns will be inserted.\n\t * @param options.at The column index at which the columns will be inserted. Default value is 0.\n\t * @param options.columns The number of columns to insert. Default value is 1.\n\t */\n\tpublic insertColumns( table: Element, options: { at?: number; columns?: number } = {} ): void {\n\t\tconst model = this.editor.model;\n\n\t\tconst insertAt = options.at || 0;\n\t\tconst columnsToInsert = options.columns || 1;\n\n\t\tmodel.change( writer => {\n\t\t\tconst headingColumns = table.getAttribute( 'headingColumns' ) as number;\n\n\t\t\t// Inserting columns inside heading section requires to update `headingColumns` attribute as the heading section will grow.\n\t\t\tif ( insertAt < headingColumns ) {\n\t\t\t\twriter.setAttribute( 'headingColumns', headingColumns + columnsToInsert, table );\n\t\t\t}\n\n\t\t\tconst tableColumns = this.getColumns( table );\n\n\t\t\t// Inserting at the end and at the beginning of a table doesn't require to calculate anything special.\n\t\t\tif ( insertAt === 0 || tableColumns === insertAt ) {\n\t\t\t\tfor ( const tableRow of table.getChildren() ) {\n\t\t\t\t\t// Ignore non-row elements inside the table (e.g. caption).\n\t\t\t\t\tif ( !tableRow.is( 'element', 'tableRow' ) ) {\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\n\t\t\t\t\tcreateCells( columnsToInsert, writer, writer.createPositionAt( tableRow, insertAt ? 'end' : 0 ) );\n\t\t\t\t}\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst tableWalker = new TableWalker( table, { column: insertAt, includeAllSlots: true } );\n\n\t\t\tfor ( const tableSlot of tableWalker ) {\n\t\t\t\tconst { row, cell, cellAnchorColumn, cellAnchorRow, cellWidth, cellHeight } = tableSlot;\n\n\t\t\t\t// When iterating over column the table walker outputs either:\n\t\t\t\t// - cells at given column index (cell \"e\" from method docs),\n\t\t\t\t// - spanned columns (spanned cell from row between cells \"g\" and \"h\" - spanned by \"e\", only if `includeAllSlots: true`),\n\t\t\t\t// - or a cell from the same row which spans over this column (cell \"a\").\n\n\t\t\t\tif ( cellAnchorColumn < insertAt ) {\n\t\t\t\t\t// If cell is anchored in previous column, it is a cell that spans over an inserted column (cell \"a\" & \"i\").\n\t\t\t\t\t// For such cells expand them by a number of columns inserted.\n\t\t\t\t\twriter.setAttribute( 'colspan', cellWidth + columnsToInsert, cell );\n\n\t\t\t\t\t// This cell will overlap cells in rows below so skip them (because of `includeAllSlots` option) - (cell \"a\")\n\t\t\t\t\tconst lastCellRow = cellAnchorRow + cellHeight - 1;\n\n\t\t\t\t\tfor ( let i = row; i <= lastCellRow; i++ ) {\n\t\t\t\t\t\ttableWalker.skipRow( i );\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// It's either cell at this column index or spanned cell by a row-spanned cell from row above.\n\t\t\t\t\t// In table above it's cell \"e\" and a spanned position from row below (empty cell between cells \"g\" and \"h\")\n\t\t\t\t\tcreateCells( columnsToInsert, writer, tableSlot.getPositionBefore() );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes rows from the given `table`.\n\t *\n\t * This method re-calculates the table geometry including `rowspan` attribute of table cells overlapping removed rows\n\t * and table headings values.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'TableUtils' ).removeRows( table, { at: 1, rows: 2 } );\n\t * ```\n\t *\n\t * Executing the above code in the context of the table on the left will transform its structure as presented on the right:\n\t *\n\t *  row index\n\t *      ┌───┬───┬───┐        `at` = 1        ┌───┬───┬───┐\n\t *    0 │ a │ b │ c │        `rows` = 2      │ a │ b │ c │ 0\n\t *      │   ├───┼───┤                        │   ├───┼───┤\n\t *    1 │   │ d │ e │  <-- remove from here  │   │ d │ g │ 1\n\t *      │   │   ├───┤        will give:      ├───┼───┼───┤\n\t *    2 │   │   │ f │                        │ h │ i │ j │ 2\n\t *      │   │   ├───┤                        └───┴───┴───┘\n\t *    3 │   │   │ g │\n\t *      ├───┼───┼───┤\n\t *    4 │ h │ i │ j │\n\t *      └───┴───┴───┘\n\t *\n\t * @param options.at The row index at which the removing rows will start.\n\t * @param options.rows The number of rows to remove. Default value is 1.\n\t */\n\tpublic removeRows( table: Element, options: { at: number; rows?: number } ): void {\n\t\tconst model = this.editor.model;\n\n\t\tconst rowsToRemove = options.rows || 1;\n\t\tconst rowCount = this.getRows( table );\n\t\tconst first = options.at;\n\t\tconst last = first + rowsToRemove - 1;\n\n\t\tif ( last > rowCount - 1 ) {\n\t\t\t/**\n\t\t\t * The `options.at` param must point at existing row and `options.rows` must not exceed the rows in the table.\n\t\t\t *\n\t\t\t * @error tableutils-removerows-row-index-out-of-range\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'tableutils-removerows-row-index-out-of-range',\n\t\t\t\tthis,\n\t\t\t\t{ table, options }\n\t\t\t);\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tconst indexesObject = { first, last };\n\n\t\t\t// Removing rows from the table require that most calculations to be done prior to changing table structure.\n\t\t\t// Preparations must be done in the same enqueueChange callback to use the current table structure.\n\n\t\t\t// 1. Preparation - get row-spanned cells that have to be modified after removing rows.\n\t\t\tconst { cellsToMove, cellsToTrim } = getCellsToMoveAndTrimOnRemoveRow( table, indexesObject );\n\n\t\t\t// 2. Execution\n\n\t\t\t// 2a. Move cells from removed rows that extends over a removed section - must be done before removing rows.\n\t\t\t// This will fill any gaps in a rows below that previously were empty because of row-spanned cells.\n\t\t\tif ( cellsToMove.size ) {\n\t\t\t\tconst rowAfterRemovedSection = last + 1;\n\t\t\t\tmoveCellsToRow( table, rowAfterRemovedSection, cellsToMove, writer );\n\t\t\t}\n\n\t\t\t// 2b. Remove all required rows.\n\t\t\tfor ( let i = last; i >= first; i-- ) {\n\t\t\t\twriter.remove( table.getChild( i )! );\n\t\t\t}\n\n\t\t\t// 2c. Update cells from rows above that overlap removed section. Similar to step 2 but does not involve moving cells.\n\t\t\tfor ( const { rowspan, cell } of cellsToTrim ) {\n\t\t\t\tupdateNumericAttribute( 'rowspan', rowspan, cell, writer );\n\t\t\t}\n\n\t\t\t// 2d. Adjust heading rows if removed rows were in a heading section.\n\t\t\tupdateHeadingRows( table, indexesObject, writer );\n\n\t\t\t// 2e. Remove empty columns (without anchored cells) if there are any.\n\t\t\tif ( !removeEmptyColumns( table, this ) ) {\n\t\t\t\t// If there wasn't any empty columns then we still need to check if this wasn't called\n\t\t\t\t// because of cleaning empty rows and we only removed one of them.\n\t\t\t\tremoveEmptyRows( table, this );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Removes columns from the given `table`.\n\t *\n\t * This method re-calculates the table geometry including the `colspan` attribute of table cells overlapping removed columns\n\t * and table headings values.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'TableUtils' ).removeColumns( table, { at: 1, columns: 2 } );\n\t * ```\n\t *\n\t * Executing the above code in the context of the table on the left will transform its structure as presented on the right:\n\t *\n\t *    0   1   2   3   4                       0   1   2\n\t *  ┌───────────────┬───┐                   ┌───────┬───┐\n\t *  │ a             │ b │                   │ a     │ b │\n\t *  │               ├───┤                   │       ├───┤\n\t *  │               │ c │                   │       │ c │\n\t *  ├───┬───┬───┬───┼───┤     will give:    ├───┬───┼───┤\n\t *  │ d │ e │ f │ g │ h │                   │ d │ g │ h │\n\t *  ├───┼───┼───┤   ├───┤                   ├───┤   ├───┤\n\t *  │ i │ j │ k │   │ l │                   │ i │   │ l │\n\t *  ├───┴───┴───┴───┴───┤                   ├───┴───┴───┤\n\t *  │ m                 │                   │ m         │\n\t *  └───────────────────┘                   └───────────┘\n\t *        ^---- remove from here, `at` = 1, `columns` = 2\n\t *\n\t * @param options.at The row index at which the removing columns will start.\n\t * @param options.columns The number of columns to remove.\n\t */\n\tpublic removeColumns( table: Element, options: { at: number; columns?: number } ): void {\n\t\tconst model = this.editor.model;\n\t\tconst first = options.at;\n\t\tconst columnsToRemove = options.columns || 1;\n\t\tconst last = options.at + columnsToRemove - 1;\n\n\t\tmodel.change( writer => {\n\t\t\tadjustHeadingColumns( table, { first, last }, writer );\n\n\t\t\tfor ( let removedColumnIndex = last; removedColumnIndex >= first; removedColumnIndex-- ) {\n\t\t\t\tfor ( const { cell, column, cellWidth } of [ ...new TableWalker( table ) ] ) {\n\t\t\t\t\t// If colspaned cell overlaps removed column decrease its span.\n\t\t\t\t\tif ( column <= removedColumnIndex && cellWidth > 1 && column + cellWidth > removedColumnIndex ) {\n\t\t\t\t\t\tupdateNumericAttribute( 'colspan', cellWidth - 1, cell, writer );\n\t\t\t\t\t} else if ( column === removedColumnIndex ) {\n\t\t\t\t\t\t// The cell in removed column has colspan of 1.\n\t\t\t\t\t\twriter.remove( cell );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Remove empty rows that could appear after removing columns.\n\t\t\tif ( !removeEmptyRows( table, this ) ) {\n\t\t\t\t// If there wasn't any empty rows then we still need to check if this wasn't called\n\t\t\t\t// because of cleaning empty columns and we only removed one of them.\n\t\t\t\tremoveEmptyColumns( table, this );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Divides a table cell vertically into several ones.\n\t *\n\t * The cell will be visually split into more cells by updating colspans of other cells in a column\n\t * and inserting cells (columns) after that cell.\n\t *\n\t * In the table below, if cell \"a\" is split into 3 cells:\n\t *\n\t *  +---+---+---+\n\t *  | a | b | c |\n\t *  +---+---+---+\n\t *  | d | e | f |\n\t *  +---+---+---+\n\t *\n\t * it will result in the table below:\n\t *\n\t *  +---+---+---+---+---+\n\t *  | a |   |   | b | c |\n\t *  +---+---+---+---+---+\n\t *  | d         | e | f |\n\t *  +---+---+---+---+---+\n\t *\n\t * So cell \"d\" will get its `colspan` updated to `3` and 2 cells will be added (2 columns will be created).\n\t *\n\t * Splitting a cell that already has a `colspan` attribute set will distribute the cell `colspan` evenly and the remainder\n\t * will be left to the original cell:\n\t *\n\t *  +---+---+---+\n\t *  | a         |\n\t *  +---+---+---+\n\t *  | b | c | d |\n\t *  +---+---+---+\n\t *\n\t * Splitting cell \"a\" with `colspan=3` into 2 cells will create 1 cell with a `colspan=a` and cell \"a\" that will have `colspan=2`:\n\t *\n\t *  +---+---+---+\n\t *  | a     |   |\n\t *  +---+---+---+\n\t *  | b | c | d |\n\t *  +---+---+---+\n\t */\n\tpublic splitCellVertically( tableCell: Element, numberOfCells = 2 ): void {\n\t\tconst model = this.editor.model;\n\t\tconst tableRow = tableCell.parent!;\n\t\tconst table = tableRow.parent as Element;\n\n\t\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) as string || '1' );\n\t\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) as string || '1' );\n\n\t\tmodel.change( writer => {\n\t\t\t// First check - the cell spans over multiple rows so before doing anything else just split this cell.\n\t\t\tif ( colspan > 1 ) {\n\t\t\t\t// Get spans of new (inserted) cells and span to update of split cell.\n\t\t\t\tconst { newCellsSpan, updatedSpan } = breakSpanEvenly( colspan, numberOfCells );\n\n\t\t\t\tupdateNumericAttribute( 'colspan', updatedSpan, tableCell, writer );\n\n\t\t\t\t// Each inserted cell will have the same attributes:\n\t\t\t\tconst newCellsAttributes: { colspan?: number; rowspan?: number } = {};\n\n\t\t\t\t// Do not store default value in the model.\n\t\t\t\tif ( newCellsSpan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.colspan = newCellsSpan;\n\t\t\t\t}\n\n\t\t\t\t// Copy rowspan of split cell.\n\t\t\t\tif ( rowspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.rowspan = rowspan;\n\t\t\t\t}\n\n\t\t\t\tconst cellsToInsert = colspan > numberOfCells ? numberOfCells - 1 : colspan - 1;\n\t\t\t\tcreateCells( cellsToInsert, writer, writer.createPositionAfter( tableCell ), newCellsAttributes );\n\t\t\t}\n\n\t\t\t// Second check - the cell has colspan of 1 or we need to create more cells then the currently one spans over.\n\t\t\tif ( colspan < numberOfCells ) {\n\t\t\t\tconst cellsToInsert = numberOfCells - colspan;\n\n\t\t\t\t// First step: expand cells on the same column as split cell.\n\t\t\t\tconst tableMap = [ ...new TableWalker( table ) ];\n\n\t\t\t\t// Get the column index of split cell.\n\t\t\t\tconst { column: splitCellColumn } = tableMap.find( ( { cell } ) => cell === tableCell )!;\n\n\t\t\t\t// Find cells which needs to be expanded vertically - those on the same column or those that spans over split cell's column.\n\t\t\t\tconst cellsToUpdate = tableMap.filter( ( { cell, cellWidth, column } ) => {\n\t\t\t\t\tconst isOnSameColumn = cell !== tableCell && column === splitCellColumn;\n\t\t\t\t\tconst spansOverColumn = ( column < splitCellColumn && column + cellWidth > splitCellColumn );\n\n\t\t\t\t\treturn isOnSameColumn || spansOverColumn;\n\t\t\t\t} );\n\n\t\t\t\t// Expand cells vertically.\n\t\t\t\tfor ( const { cell, cellWidth } of cellsToUpdate ) {\n\t\t\t\t\twriter.setAttribute( 'colspan', cellWidth + cellsToInsert, cell );\n\t\t\t\t}\n\n\t\t\t\t// Second step: create columns after split cell.\n\n\t\t\t\t// Each inserted cell will have the same attributes:\n\t\t\t\tconst newCellsAttributes: { rowspan?: number } = {};\n\n\t\t\t\t// Do not store default value in the model.\n\n\t\t\t\t// Copy rowspan of split cell.\n\t\t\t\tif ( rowspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.rowspan = rowspan;\n\t\t\t\t}\n\n\t\t\t\tcreateCells( cellsToInsert, writer, writer.createPositionAfter( tableCell ), newCellsAttributes );\n\n\t\t\t\tconst headingColumns = table.getAttribute( 'headingColumns' ) as number || 0;\n\n\t\t\t\t// Update heading section if split cell is in heading section.\n\t\t\t\tif ( headingColumns > splitCellColumn ) {\n\t\t\t\t\tupdateNumericAttribute( 'headingColumns', headingColumns + cellsToInsert, table, writer );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Divides a table cell horizontally into several ones.\n\t *\n\t * The cell will be visually split into more cells by updating rowspans of other cells in the row and inserting rows with a single cell\n\t * below.\n\t *\n\t * If in the table below cell \"b\" is split into 3 cells:\n\t *\n\t *  +---+---+---+\n\t *  | a | b | c |\n\t *  +---+---+---+\n\t *  | d | e | f |\n\t *  +---+---+---+\n\t *\n\t * It will result in the table below:\n\t *\n\t *  +---+---+---+\n\t *  | a | b | c |\n\t *  +   +---+   +\n\t *  |   |   |   |\n\t *  +   +---+   +\n\t *  |   |   |   |\n\t *  +---+---+---+\n\t *  | d | e | f |\n\t *  +---+---+---+\n\t *\n\t * So cells \"a\" and \"b\" will get their `rowspan` updated to `3` and 2 rows with a single cell will be added.\n\t *\n\t * Splitting a cell that already has a `rowspan` attribute set will distribute the cell `rowspan` evenly and the remainder\n\t * will be left to the original cell:\n\t *\n\t *  +---+---+---+\n\t *  | a | b | c |\n\t *  +   +---+---+\n\t *  |   | d | e |\n\t *  +   +---+---+\n\t *  |   | f | g |\n\t *  +   +---+---+\n\t *  |   | h | i |\n\t *  +---+---+---+\n\t *\n\t * Splitting cell \"a\" with `rowspan=4` into 3 cells will create 2 cells with a `rowspan=1` and cell \"a\" will have `rowspan=2`:\n\t *\n\t *  +---+---+---+\n\t *  | a | b | c |\n\t *  +   +---+---+\n\t *  |   | d | e |\n\t *  +---+---+---+\n\t *  |   | f | g |\n\t *  +---+---+---+\n\t *  |   | h | i |\n\t *  +---+---+---+\n\t */\n\tpublic splitCellHorizontally( tableCell: Element, numberOfCells = 2 ): void {\n\t\tconst model = this.editor.model;\n\n\t\tconst tableRow = tableCell.parent as Node;\n\t\tconst table = tableRow.parent! as Element;\n\t\tconst splitCellRow = table.getChildIndex( tableRow )!;\n\n\t\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) as string || '1' );\n\t\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) as string || '1' );\n\n\t\tmodel.change( writer => {\n\t\t\t// First check - the cell spans over multiple rows so before doing anything else just split this cell.\n\t\t\tif ( rowspan > 1 ) {\n\t\t\t\t// Cache table map before updating table.\n\t\t\t\tconst tableMap = [ ...new TableWalker( table, {\n\t\t\t\t\tstartRow: splitCellRow,\n\t\t\t\t\tendRow: splitCellRow + rowspan - 1,\n\t\t\t\t\tincludeAllSlots: true\n\t\t\t\t} ) ];\n\n\t\t\t\t// Get spans of new (inserted) cells and span to update of split cell.\n\t\t\t\tconst { newCellsSpan, updatedSpan } = breakSpanEvenly( rowspan, numberOfCells );\n\n\t\t\t\tupdateNumericAttribute( 'rowspan', updatedSpan, tableCell, writer );\n\n\t\t\t\tconst { column: cellColumn } = tableMap.find( ( { cell } ) => cell === tableCell )!;\n\n\t\t\t\t// Each inserted cell will have the same attributes:\n\t\t\t\tconst newCellsAttributes: { rowspan?: number; colspan?: number } = {};\n\n\t\t\t\t// Do not store default value in the model.\n\t\t\t\tif ( newCellsSpan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.rowspan = newCellsSpan;\n\t\t\t\t}\n\n\t\t\t\t// Copy colspan of split cell.\n\t\t\t\tif ( colspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.colspan = colspan;\n\t\t\t\t}\n\n\t\t\t\tfor ( const tableSlot of tableMap ) {\n\t\t\t\t\tconst { column, row } = tableSlot;\n\n\t\t\t\t\t// As both newly created cells and the split cell might have rowspan,\n\t\t\t\t\t// the insertion of new cells must go to appropriate rows:\n\t\t\t\t\t//\n\t\t\t\t\t// 1. It's a row after split cell + it's height.\n\t\t\t\t\tconst isAfterSplitCell = row >= splitCellRow + updatedSpan;\n\t\t\t\t\t// 2. Is on the same column.\n\t\t\t\t\tconst isOnSameColumn = column === cellColumn;\n\t\t\t\t\t// 3. And it's row index is after previous cell height.\n\t\t\t\t\tconst isInEvenlySplitRow = ( row + splitCellRow + updatedSpan ) % newCellsSpan === 0;\n\n\t\t\t\t\tif ( isAfterSplitCell && isOnSameColumn && isInEvenlySplitRow ) {\n\t\t\t\t\t\tcreateCells( 1, writer, tableSlot.getPositionBefore(), newCellsAttributes );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Second check - the cell has rowspan of 1 or we need to create more cells than the current cell spans over.\n\t\t\tif ( rowspan < numberOfCells ) {\n\t\t\t\t// We already split the cell in check one so here we split to the remaining number of cells only.\n\t\t\t\tconst cellsToInsert = numberOfCells - rowspan;\n\n\t\t\t\t// This check is needed since we need to check if there are any cells from previous rows than spans over this cell's row.\n\t\t\t\tconst tableMap = [ ...new TableWalker( table, { startRow: 0, endRow: splitCellRow } ) ];\n\n\t\t\t\t// First step: expand cells.\n\t\t\t\tfor ( const { cell, cellHeight, row } of tableMap ) {\n\t\t\t\t\t// Expand rowspan of cells that are either:\n\t\t\t\t\t// - on the same row as current cell,\n\t\t\t\t\t// - or are below split cell row and overlaps that row.\n\t\t\t\t\tif ( cell !== tableCell && row + cellHeight > splitCellRow ) {\n\t\t\t\t\t\tconst rowspanToSet = cellHeight + cellsToInsert;\n\n\t\t\t\t\t\twriter.setAttribute( 'rowspan', rowspanToSet, cell );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Second step: create rows with single cell below split cell.\n\t\t\t\tconst newCellsAttributes: { colspan?: number } = {};\n\n\t\t\t\t// Copy colspan of split cell.\n\t\t\t\tif ( colspan > 1 ) {\n\t\t\t\t\tnewCellsAttributes.colspan = colspan;\n\t\t\t\t}\n\n\t\t\t\tcreateEmptyRows( writer, table, splitCellRow + 1, cellsToInsert, 1, newCellsAttributes );\n\n\t\t\t\t// Update heading section if split cell is in heading section.\n\t\t\t\tconst headingRows = table.getAttribute( 'headingRows' ) as number || 0;\n\n\t\t\t\tif ( headingRows > splitCellRow ) {\n\t\t\t\t\tupdateNumericAttribute( 'headingRows', headingRows + cellsToInsert, table, writer );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the number of columns for a given table.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'TableUtils' ).getColumns( table );\n\t * ```\n\t *\n\t * @param table The table to analyze.\n\t */\n\tpublic getColumns( table: Element ): number {\n\t\t// Analyze first row only as all the rows should have the same width.\n\t\t// Using the first row without checking if it's a tableRow because we expect\n\t\t// that table will have only tableRow model elements at the beginning.\n\t\tconst row = table.getChild( 0 ) as Element;\n\n\t\treturn [ ...row.getChildren() ].reduce( ( columns, row ) => {\n\t\t\tconst columnWidth = parseInt( row.getAttribute( 'colspan' ) as string || '1' );\n\n\t\t\treturn columns + columnWidth;\n\t\t}, 0 );\n\t}\n\n\t/**\n\t * Returns the number of rows for a given table. Any other element present in the table model is omitted.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'TableUtils' ).getRows( table );\n\t * ```\n\t *\n\t * @param table The table to analyze.\n\t */\n\tpublic getRows( table: Element ): number {\n\t\t// Rowspan not included due to #6427.\n\t\treturn Array.from( table.getChildren() )\n\t\t\t.reduce( ( rowCount, child ) => child.is( 'element', 'tableRow' ) ? rowCount + 1 : rowCount, 0 );\n\t}\n\n\t/**\n\t * Creates an instance of the table walker.\n\t *\n\t * The table walker iterates internally by traversing the table from row index = 0 and column index = 0.\n\t * It walks row by row and column by column in order to output values defined in the options.\n\t * By default it will output only the locations that are occupied by a cell. To include also spanned rows and columns,\n\t * pass the `includeAllSlots` option.\n\t *\n\t * @internal\n\t * @param table A table over which the walker iterates.\n\t * @param options An object with configuration.\n\t */\n\tpublic createTableWalker( table: Element, options: TableWalkerOptions = {} ): TableWalker {\n\t\treturn new TableWalker( table, options );\n\t}\n\n\t/**\n\t * Returns all model table cells that are fully selected (from the outside)\n\t * within the provided model selection's ranges.\n\t *\n\t * To obtain the cells selected from the inside, use\n\t * {@link #getTableCellsContainingSelection}.\n\t */\n\tpublic getSelectedTableCells( selection: Selection | DocumentSelection ): Array<Element> {\n\t\tconst cells = [];\n\n\t\tfor ( const range of this.sortRanges( selection.getRanges() ) ) {\n\t\t\tconst element = range.getContainedElement();\n\n\t\t\tif ( element && element.is( 'element', 'tableCell' ) ) {\n\t\t\t\tcells.push( element );\n\t\t\t}\n\t\t}\n\n\t\treturn cells;\n\t}\n\n\t/**\n\t * Returns all model table cells that the provided model selection's ranges\n\t * {@link module:engine/model/range~Range#start} inside.\n\t *\n\t * To obtain the cells selected from the outside, use\n\t * {@link #getSelectedTableCells}.\n\t */\n\tpublic getTableCellsContainingSelection( selection: Selection | DocumentSelection ): Array<Element> {\n\t\tconst cells = [];\n\n\t\tfor ( const range of selection.getRanges() ) {\n\t\t\tconst cellWithSelection = range.start.findAncestor( 'tableCell' );\n\n\t\t\tif ( cellWithSelection ) {\n\t\t\t\tcells.push( cellWithSelection );\n\t\t\t}\n\t\t}\n\n\t\treturn cells;\n\t}\n\n\t/**\n\t * Returns all model table cells that are either completely selected\n\t * by selection ranges or host selection range\n\t * {@link module:engine/model/range~Range#start start positions} inside them.\n\t *\n\t * Combines {@link #getTableCellsContainingSelection} and\n\t * {@link #getSelectedTableCells}.\n\t */\n\tpublic getSelectionAffectedTableCells( selection: Selection | DocumentSelection ): Array<Element> {\n\t\tconst selectedCells = this.getSelectedTableCells( selection );\n\n\t\tif ( selectedCells.length ) {\n\t\t\treturn selectedCells;\n\t\t}\n\n\t\treturn this.getTableCellsContainingSelection( selection );\n\t}\n\n\t/**\n\t * Returns an object with the `first` and `last` row index contained in the given `tableCells`.\n\t *\n\t * ```ts\n\t * const selectedTableCells = getSelectedTableCells( editor.model.document.selection );\n\t *\n\t * const { first, last } = getRowIndexes( selectedTableCells );\n\t *\n\t * console.log( `Selected rows: ${ first } to ${ last }` );\n\t * ```\n\t *\n\t * @returns Returns an object with the `first` and `last` table row indexes.\n\t */\n\tpublic getRowIndexes( tableCells: Array<Element> ): IndexesObject {\n\t\tconst indexes = tableCells.map( cell => ( cell.parent as Element ).index! );\n\n\t\treturn this._getFirstLastIndexesObject( indexes );\n\t}\n\n\t/**\n\t * Returns an object with the `first` and `last` column index contained in the given `tableCells`.\n\t *\n\t * ```ts\n\t * const selectedTableCells = getSelectedTableCells( editor.model.document.selection );\n\t *\n\t * const { first, last } = getColumnIndexes( selectedTableCells );\n\t *\n\t * console.log( `Selected columns: ${ first } to ${ last }` );\n\t * ```\n\t *\n\t * @returns Returns an object with the `first` and `last` table column indexes.\n\t */\n\tpublic getColumnIndexes( tableCells: Array<Element> ): IndexesObject {\n\t\tconst table = tableCells[ 0 ].findAncestor( 'table' )!;\n\t\tconst tableMap = [ ...new TableWalker( table ) ];\n\n\t\tconst indexes = tableMap\n\t\t\t.filter( entry => tableCells.includes( entry.cell ) )\n\t\t\t.map( entry => entry.column );\n\n\t\treturn this._getFirstLastIndexesObject( indexes );\n\t}\n\n\t/**\n\t * Checks if the selection contains cells that do not exceed rectangular selection.\n\t *\n\t * In a table below:\n\t *\n\t *  ┌───┬───┬───┬───┐\n\t *  │ a │ b │ c │ d │\n\t *  ├───┴───┼───┤   │\n\t *  │ e     │ f │   │\n\t *  │       ├───┼───┤\n\t *  │       │ g │ h │\n\t *  └───────┴───┴───┘\n\t *\n\t * Valid selections are these which create a solid rectangle (without gaps), such as:\n\t *   - a, b (two horizontal cells)\n\t *   - c, f (two vertical cells)\n\t *   - a, b, e (cell \"e\" spans over four cells)\n\t *   - c, d, f (cell d spans over a cell in the row below)\n\t *\n\t * While an invalid selection would be:\n\t *   - a, c (the unselected cell \"b\" creates a gap)\n\t *   - f, g, h (cell \"d\" spans over a cell from the row of \"f\" cell - thus creates a gap)\n\t */\n\tpublic isSelectionRectangular( selectedTableCells: Array<Element> ): boolean {\n\t\tif ( selectedTableCells.length < 2 || !this._areCellInTheSameTableSection( selectedTableCells ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// A valid selection is a fully occupied rectangle composed of table cells.\n\t\t// Below we will calculate the area of a selected table cells and the area of valid selection.\n\t\t// The area of a valid selection is defined by top-left and bottom-right cells.\n\t\tconst rows: Set<number> = new Set();\n\t\tconst columns: Set<number> = new Set();\n\n\t\tlet areaOfSelectedCells = 0;\n\n\t\tfor ( const tableCell of selectedTableCells ) {\n\t\t\tconst { row, column } = this.getCellLocation( tableCell );\n\t\t\tconst rowspan = parseInt( tableCell.getAttribute( 'rowspan' ) as string ) || 1;\n\t\t\tconst colspan = parseInt( tableCell.getAttribute( 'colspan' ) as string ) || 1;\n\n\t\t\t// Record row & column indexes of current cell.\n\t\t\trows.add( row );\n\t\t\tcolumns.add( column );\n\n\t\t\t// For cells that spans over multiple rows add also the last row that this cell spans over.\n\t\t\tif ( rowspan > 1 ) {\n\t\t\t\trows.add( row + rowspan - 1 );\n\t\t\t}\n\n\t\t\t// For cells that spans over multiple columns add also the last column that this cell spans over.\n\t\t\tif ( colspan > 1 ) {\n\t\t\t\tcolumns.add( column + colspan - 1 );\n\t\t\t}\n\n\t\t\tareaOfSelectedCells += ( rowspan * colspan );\n\t\t}\n\n\t\t// We can only merge table cells that are in adjacent rows...\n\t\tconst areaOfValidSelection = getBiggestRectangleArea( rows, columns );\n\n\t\treturn areaOfValidSelection == areaOfSelectedCells;\n\t}\n\n\t/**\n\t * Returns array of sorted ranges.\n\t */\n\tpublic sortRanges( ranges: Iterable<Range> ): Array<Range> {\n\t\treturn Array.from( ranges ).sort( compareRangeOrder );\n\t}\n\n\t/**\n\t * Helper method to get an object with `first` and `last` indexes from an unsorted array of indexes.\n\t */\n\tprivate _getFirstLastIndexesObject( indexes: Array<number> ): IndexesObject {\n\t\tconst allIndexesSorted = indexes.sort( ( indexA, indexB ) => indexA - indexB );\n\n\t\tconst first = allIndexesSorted[ 0 ];\n\t\tconst last = allIndexesSorted[ allIndexesSorted.length - 1 ];\n\n\t\treturn { first, last };\n\t}\n\n\t/**\n\t * Checks if the selection does not mix a header (column or row) with other cells.\n\t *\n\t * For instance, in the table below valid selections consist of cells with the same letter only.\n\t * So, a-a (same heading row and column) or d-d (body cells) are valid while c-d or a-b are not.\n\t *\n\t * header columns\n\t *    ↓   ↓\n\t *  ┌───┬───┬───┬───┐\n\t *  │ a │ a │ b │ b │  ← header row\n\t *  ├───┼───┼───┼───┤\n\t *  │ c │ c │ d │ d │\n\t *  ├───┼───┼───┼───┤\n\t *  │ c │ c │ d │ d │\n\t *  └───┴───┴───┴───┘\n\t */\n\tprivate _areCellInTheSameTableSection( tableCells: Array<Element> ): boolean {\n\t\tconst table = tableCells[ 0 ].findAncestor( 'table' )!;\n\n\t\tconst rowIndexes = this.getRowIndexes( tableCells );\n\t\tconst headingRows = parseInt( table.getAttribute( 'headingRows' ) as string ) || 0;\n\n\t\t// Calculating row indexes is a bit cheaper so if this check fails we can't merge.\n\t\tif ( !this._areIndexesInSameSection( rowIndexes, headingRows ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst columnIndexes = this.getColumnIndexes( tableCells );\n\t\tconst headingColumns = parseInt( table.getAttribute( 'headingColumns' ) as string ) || 0;\n\n\t\t// Similarly cells must be in same column section.\n\t\treturn this._areIndexesInSameSection( columnIndexes, headingColumns );\n\t}\n\n\t/**\n\t * Unified check if table rows/columns indexes are in the same heading/body section.\n\t */\n\tprivate _areIndexesInSameSection( { first, last }: IndexesObject, headingSectionSize: number ): boolean {\n\t\tconst firstCellIsInHeading = first < headingSectionSize;\n\t\tconst lastCellIsInHeading = last < headingSectionSize;\n\n\t\treturn firstCellIsInHeading === lastCellIsInHeading;\n\t}\n}\n\n/**\n * Creates empty rows at the given index in an existing table.\n *\n * @param insertAt The row index of row insertion.\n * @param rows The number of rows to create.\n * @param tableCellToInsert The number of cells to insert in each row.\n */\nfunction createEmptyRows( writer: Writer, table: Element, insertAt: number, rows: number, tableCellToInsert: number, attributes = {} ) {\n\tfor ( let i = 0; i < rows; i++ ) {\n\t\tconst tableRow = writer.createElement( 'tableRow' );\n\n\t\twriter.insert( tableRow, table, insertAt );\n\n\t\tcreateCells( tableCellToInsert, writer, writer.createPositionAt( tableRow, 'end' ), attributes );\n\t}\n}\n\n/**\n * Creates cells at a given position.\n *\n * @param cells The number of cells to create\n */\nfunction createCells( cells: number, writer: Writer, insertPosition: Position, attributes = {} ) {\n\tfor ( let i = 0; i < cells; i++ ) {\n\t\tcreateEmptyTableCell( writer, insertPosition, attributes );\n\t}\n}\n\n/**\n * Evenly distributes the span of a cell to a number of provided cells.\n * The resulting spans will always be integer values.\n *\n * For instance breaking a span of 7 into 3 cells will return:\n *\n * ```ts\n * { newCellsSpan: 2, updatedSpan: 3 }\n * ```\n *\n * as two cells will have a span of 2 and the remainder will go the first cell so its span will change to 3.\n *\n * @param span The span value do break.\n * @param numberOfCells The number of resulting spans.\n */\nfunction breakSpanEvenly( span: number, numberOfCells: number ): { newCellsSpan: number; updatedSpan: number } {\n\tif ( span < numberOfCells ) {\n\t\treturn { newCellsSpan: 1, updatedSpan: 1 };\n\t}\n\n\tconst newCellsSpan = Math.floor( span / numberOfCells );\n\tconst updatedSpan = ( span - newCellsSpan * numberOfCells ) + newCellsSpan;\n\n\treturn { newCellsSpan, updatedSpan };\n}\n\n/**\n * Updates heading columns attribute if removing a row from head section.\n */\nfunction adjustHeadingColumns( table: Element, removedColumnIndexes: IndexesObject, writer: Writer ) {\n\tconst headingColumns = table.getAttribute( 'headingColumns' ) as number || 0;\n\n\tif ( headingColumns && removedColumnIndexes.first < headingColumns ) {\n\t\tconst headingsRemoved = Math.min( headingColumns - 1 /* Other numbers are 0-based */, removedColumnIndexes.last ) -\n\t\t\tremovedColumnIndexes.first + 1;\n\n\t\twriter.setAttribute( 'headingColumns', headingColumns - headingsRemoved, table );\n\t}\n}\n\n/**\n * Calculates a new heading rows value for removing rows from heading section.\n */\nfunction updateHeadingRows( table: Element, { first, last }: IndexesObject, writer: Writer ) {\n\tconst headingRows = table.getAttribute( 'headingRows' ) as number || 0;\n\n\tif ( first < headingRows ) {\n\t\tconst newRows = last < headingRows ? headingRows - ( last - first + 1 ) : first;\n\n\t\tupdateNumericAttribute( 'headingRows', newRows, table, writer, 0 );\n\t}\n}\n\n/**\n * Finds cells that will be:\n * - trimmed - Cells that are \"above\" removed rows sections and overlap the removed section - their rowspan must be trimmed.\n * - moved - Cells from removed rows section might stick out of. These cells are moved to the next row after a removed section.\n *\n * Sample table with overlapping & sticking out cells:\n *\n *      +----+----+----+----+----+\n *      | 00 | 01 | 02 | 03 | 04 |\n *      +----+    +    +    +    +\n *      | 10 |    |    |    |    |\n *      +----+----+    +    +    +\n *      | 20 | 21 |    |    |    | <-- removed row\n *      +    +    +----+    +    +\n *      |    |    | 32 |    |    | <-- removed row\n *      +----+    +    +----+    +\n *      | 40 |    |    | 43 |    |\n *      +----+----+----+----+----+\n *\n * In a table above:\n * - cells to trim: '02', '03' & '04'.\n * - cells to move: '21' & '32'.\n */\nfunction getCellsToMoveAndTrimOnRemoveRow( table: Element, { first, last }: IndexesObject ) {\n\tconst cellsToMove: CellsToMove = new Map();\n\tconst cellsToTrim: CellsToTrim = [];\n\n\tfor ( const { row, column, cellHeight, cell } of new TableWalker( table, { endRow: last } ) ) {\n\t\tconst lastRowOfCell = row + cellHeight - 1;\n\n\t\tconst isCellStickingOutFromRemovedRows = row >= first && row <= last && lastRowOfCell > last;\n\n\t\tif ( isCellStickingOutFromRemovedRows ) {\n\t\t\tconst rowspanInRemovedSection = last - row + 1;\n\t\t\tconst rowSpanToSet = cellHeight - rowspanInRemovedSection;\n\n\t\t\tcellsToMove.set( column, {\n\t\t\t\tcell,\n\t\t\t\trowspan: rowSpanToSet\n\t\t\t} );\n\t\t}\n\n\t\tconst isCellOverlappingRemovedRows = row < first && lastRowOfCell >= first;\n\n\t\tif ( isCellOverlappingRemovedRows ) {\n\t\t\tlet rowspanAdjustment;\n\n\t\t\t// Cell fully covers removed section - trim it by removed rows count.\n\t\t\tif ( lastRowOfCell >= last ) {\n\t\t\t\trowspanAdjustment = last - first + 1;\n\t\t\t}\n\t\t\t// Cell partially overlaps removed section - calculate cell's span that is in removed section.\n\t\t\telse {\n\t\t\t\trowspanAdjustment = lastRowOfCell - first + 1;\n\t\t\t}\n\n\t\t\tcellsToTrim.push( {\n\t\t\t\tcell,\n\t\t\t\trowspan: cellHeight - rowspanAdjustment\n\t\t\t} );\n\t\t}\n\t}\n\n\treturn { cellsToMove, cellsToTrim };\n}\n\nfunction moveCellsToRow( table: Element, targetRowIndex: number, cellsToMove: CellsToMove, writer: Writer ) {\n\tconst tableWalker = new TableWalker( table, {\n\t\tincludeAllSlots: true,\n\t\trow: targetRowIndex\n\t} );\n\n\tconst tableRowMap = [ ...tableWalker ];\n\tconst row = table.getChild( targetRowIndex )!;\n\n\tlet previousCell;\n\n\tfor ( const { column, cell, isAnchor } of tableRowMap ) {\n\t\tif ( cellsToMove.has( column ) ) {\n\t\t\tconst { cell: cellToMove, rowspan } = cellsToMove.get( column )!;\n\n\t\t\tconst targetPosition = previousCell ?\n\t\t\t\twriter.createPositionAfter( previousCell ) :\n\t\t\t\twriter.createPositionAt( row, 0 );\n\n\t\t\twriter.move( writer.createRangeOn( cellToMove ), targetPosition );\n\t\t\tupdateNumericAttribute( 'rowspan', rowspan, cellToMove, writer );\n\n\t\t\tpreviousCell = cellToMove;\n\t\t} else if ( isAnchor ) {\n\t\t\t// If cell is spanned then `cell` holds reference to overlapping cell. See ckeditor/ckeditor5#6502.\n\t\t\tpreviousCell = cell;\n\t\t}\n\t}\n}\n\nfunction compareRangeOrder( rangeA: Range, rangeB: Range ) {\n\t// Since table cell ranges are disjoint, it's enough to check their start positions.\n\tconst posA = rangeA.start;\n\tconst posB = rangeB.start;\n\n\t// Checking for equal position (returning 0) is not needed because this would be either:\n\t// a. Intersecting range (not allowed by model)\n\t// b. Collapsed range on the same position (allowed by model but should not happen).\n\treturn posA.isBefore( posB ) ? -1 : 1;\n}\n\n/**\n * Calculates the area of a maximum rectangle that can span over the provided row & column indexes.\n */\nfunction getBiggestRectangleArea( rows: Set<number>, columns: Set<number> ): number {\n\tconst rowsIndexes = Array.from( rows.values() );\n\tconst columnIndexes = Array.from( columns.values() );\n\n\tconst lastRow = Math.max( ...rowsIndexes );\n\tconst firstRow = Math.min( ...rowsIndexes );\n\tconst lastColumn = Math.max( ...columnIndexes );\n\tconst firstColumn = Math.min( ...columnIndexes );\n\n\treturn ( lastRow - firstRow + 1 ) * ( lastColumn - firstColumn + 1 );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/mergecellscommand\n */\n\nimport type {\n\tElement,\n\tWriter\n} from 'ckeditor5/src/engine';\n\nimport { Command } from 'ckeditor5/src/core';\nimport TableUtils from '../tableutils';\nimport { updateNumericAttribute } from '../utils/common';\nimport { removeEmptyRowsColumns } from '../utils/structure';\n\n/**\n * The merge cells command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'mergeTableCells'` editor command.\n *\n * For example, to merge selected table cells:\n *\n * ```ts\n * editor.execute( 'mergeTableCells' );\n * ```\n */\nexport default class MergeCellsCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\n\t\tconst selectedTableCells = tableUtils.getSelectedTableCells( this.editor.model.document.selection );\n\t\tthis.isEnabled = tableUtils.isSelectionRectangular( selectedTableCells );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\n\t\tmodel.change( writer => {\n\t\t\tconst selectedTableCells = tableUtils.getSelectedTableCells( model.document.selection );\n\n\t\t\t// All cells will be merged into the first one.\n\t\t\tconst firstTableCell = selectedTableCells.shift()!;\n\n\t\t\t// Update target cell dimensions.\n\t\t\tconst { mergeWidth, mergeHeight } = getMergeDimensions( firstTableCell, selectedTableCells, tableUtils );\n\t\t\tupdateNumericAttribute( 'colspan', mergeWidth, firstTableCell, writer );\n\t\t\tupdateNumericAttribute( 'rowspan', mergeHeight, firstTableCell, writer );\n\n\t\t\tfor ( const tableCell of selectedTableCells ) {\n\t\t\t\tmergeTableCells( tableCell, firstTableCell, writer );\n\t\t\t}\n\n\t\t\tconst table = firstTableCell.findAncestor( 'table' )!;\n\n\t\t\t// Remove rows and columns that become empty (have no anchored cells).\n\t\t\tremoveEmptyRowsColumns( table, tableUtils );\n\n\t\t\twriter.setSelection( firstTableCell, 'in' );\n\t\t} );\n\t}\n}\n\n/**\n *  Merges two table cells. It will ensure that after merging cells with empty paragraphs the resulting table cell will only have one\n * paragraph. If one of the merged table cells is empty, the merged table cell will have contents of the non-empty table cell.\n * If both are empty, the merged table cell will have only one empty paragraph.\n */\nfunction mergeTableCells( cellBeingMerged: Element, targetCell: Element, writer: Writer ) {\n\tif ( !isEmpty( cellBeingMerged ) ) {\n\t\tif ( isEmpty( targetCell ) ) {\n\t\t\twriter.remove( writer.createRangeIn( targetCell ) );\n\t\t}\n\n\t\twriter.move( writer.createRangeIn( cellBeingMerged ), writer.createPositionAt( targetCell, 'end' ) );\n\t}\n\n\t// Remove merged table cell.\n\twriter.remove( cellBeingMerged );\n}\n\n/**\n * Checks if the passed table cell contains an empty paragraph.\n */\nfunction isEmpty( tableCell: Element ): boolean {\n\tconst firstTableChild = tableCell.getChild( 0 );\n\n\treturn tableCell.childCount == 1 && firstTableChild!.is( 'element', 'paragraph' ) && firstTableChild.isEmpty;\n}\n\nfunction getMergeDimensions( firstTableCell: Element, selectedTableCells: Array<Element>, tableUtils: TableUtils ) {\n\tlet maxWidthOffset = 0;\n\tlet maxHeightOffset = 0;\n\n\tfor ( const tableCell of selectedTableCells ) {\n\t\tconst { row, column } = tableUtils.getCellLocation( tableCell );\n\n\t\tmaxWidthOffset = getMaxOffset( tableCell, column, maxWidthOffset, 'colspan' );\n\t\tmaxHeightOffset = getMaxOffset( tableCell, row, maxHeightOffset, 'rowspan' );\n\t}\n\n\t// Update table cell span attribute and merge set selection on a merged contents.\n\tconst { row: firstCellRow, column: firstCellColumn } = tableUtils.getCellLocation( firstTableCell );\n\n\tconst mergeWidth = maxWidthOffset - firstCellColumn;\n\tconst mergeHeight = maxHeightOffset - firstCellRow;\n\n\treturn { mergeWidth, mergeHeight };\n}\n\nfunction getMaxOffset( tableCell: Element, start: number, currentMaxOffset: number, which: string ) {\n\tconst dimensionValue = parseInt( tableCell.getAttribute( which ) as string || '1' );\n\n\treturn Math.max( currentMaxOffset, start + dimensionValue );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/selectrowcommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { Range, Element } from 'ckeditor5/src/engine';\nimport type TableUtils from '../tableutils';\n\n/**\n * The select row command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'selectTableRow'` editor command.\n *\n * To select the rows containing the selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'selectTableRow' );\n * ```\n */\nexport default class SelectRowCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = selectedCells.length > 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst rowIndexes = tableUtils.getRowIndexes( referenceCells );\n\n\t\tconst table = referenceCells[ 0 ].findAncestor( 'table' )!;\n\t\tconst rangesToSelect: Array<Range> = [];\n\n\t\tfor ( let rowIndex = rowIndexes.first; rowIndex <= rowIndexes.last; rowIndex++ ) {\n\t\t\tfor ( const cell of ( table.getChild( rowIndex ) as Element ).getChildren() ) {\n\t\t\t\trangesToSelect.push( model.createRangeOn( cell ) );\n\t\t\t}\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( rangesToSelect );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/commands/selectcolumncommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { Range } from 'ckeditor5/src/engine';\nimport type TableUtils from '../tableutils';\n\nimport TableWalker from '../tablewalker';\n\n/**\n * The select column command.\n *\n * The command is registered by {@link module:table/tableediting~TableEditing} as the `'selectTableColumn'` editor command.\n *\n * To select the columns containing the selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'selectTableColumn' );\n * ```\n */\nexport default class SelectColumnCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedCells = tableUtils.getSelectionAffectedTableCells( this.editor.model.document.selection );\n\n\t\tthis.isEnabled = selectedCells.length > 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst model = this.editor.model;\n\t\tconst referenceCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst firstCell = referenceCells[ 0 ];\n\t\tconst lastCell = referenceCells.pop()!;\n\t\tconst table = firstCell.findAncestor( 'table' )!;\n\n\t\tconst startLocation = tableUtils.getCellLocation( firstCell );\n\t\tconst endLocation = tableUtils.getCellLocation( lastCell );\n\n\t\tconst startColumn = Math.min( startLocation.column, endLocation.column );\n\t\tconst endColumn = Math.max( startLocation.column, endLocation.column );\n\n\t\tconst rangesToSelect: Array<Range> = [];\n\n\t\tfor ( const cellInfo of new TableWalker( table, { startColumn, endColumn } ) ) {\n\t\t\trangesToSelect.push( model.createRangeOn( cellInfo.cell ) );\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( rangesToSelect );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-layout-post-fixer\n */\n\nimport type {\n\tElement,\n\tModel,\n\tWriter,\n\tDiffItem,\n\tDiffItemAttribute\n} from 'ckeditor5/src/engine';\n\nimport TableWalker from './../tablewalker';\nimport { createEmptyTableCell, updateNumericAttribute } from '../utils/common';\n\n/**\n * Injects a table layout post-fixer into the model.\n *\n * The role of the table layout post-fixer is to ensure that the table rows have the correct structure\n * after a {@link module:engine/model/model~Model#change `change()`} block was executed.\n *\n * The correct structure means that:\n *\n * * All table rows have the same size.\n * * None of the table cells extend vertically beyond their section (either header or body).\n * * A table cell has always at least one element as a child.\n *\n * If the table structure is not correct, the post-fixer will automatically correct it in two steps:\n *\n * 1. It will clip table cells that extend beyond their section.\n * 2. It will add empty table cells to the rows that are narrower than the widest table row.\n *\n * ## Clipping overlapping table cells\n *\n * Such situation may occur when pasting a table (or a part of a table) to the editor from external sources.\n *\n * For example, see the following table which has a cell (FOO) with the rowspan attribute (2):\n *\n * ```xml\n * <table headingRows=\"1\">\n *   <tableRow>\n *     <tableCell rowspan=\"2\"><paragraph>FOO</paragraph></tableCell>\n *     <tableCell colspan=\"2\"><paragraph>BAR</paragraph></tableCell>\n *   </tableRow>\n *   <tableRow>\n *     <tableCell><paragraph>BAZ</paragraph></tableCell>\n *     <tableCell><paragraph>XYZ</paragraph></tableCell>\n *   </tableRow>\n * </table>\n * ```\n *\n * It will be rendered in the view as:\n *\n * ```xml\n * <table>\n *   <thead>\n *     <tr>\n *       <td rowspan=\"2\">FOO</td>\n *       <td colspan=\"2\">BAR</td>\n *     </tr>\n *   </thead>\n *   <tbody>\n *     <tr>\n *       <td>BAZ</td>\n *       <td>XYZ</td>\n *     </tr>\n *   </tbody>\n * </table>\n * ```\n *\n * In the above example the table will be rendered as a table with two rows: one in the header and second one in the body.\n * The table cell (FOO) cannot span over multiple rows as it would extend from the header to the body section.\n * The `rowspan` attribute must be changed to (1). The value (1) is the default value of the `rowspan` attribute\n * so the `rowspan` attribute will be removed from the model.\n *\n * The table cell with BAZ in the content will be in the first column of the table.\n *\n * ## Adding missing table cells\n *\n * The table post-fixer will insert empty table cells to equalize table row sizes (the number of columns).\n * The size of a table row is calculated by counting column spans of table cells, both horizontal (from the same row) and\n * vertical (from the rows above).\n *\n * In the above example, the table row in the body section of the table is narrower then the row from the header: it has two cells\n * with the default colspan (1). The header row has one cell with colspan (1) and the second with colspan (2).\n * The table cell (FOO) does not extend beyond the head section (and as such will be fixed in the first step of this post-fixer).\n * The post-fixer will add a missing table cell to the row in the body section of the table.\n *\n * The table from the above example will be fixed and rendered to the view as below:\n *\n * ```xml\n * <table>\n *   <thead>\n *     <tr>\n *       <td rowspan=\"2\">FOO</td>\n *       <td colspan=\"2\">BAR</td>\n *     </tr>\n *   </thead>\n *   <tbody>\n *     <tr>\n *       <td>BAZ</td>\n *       <td>XYZ</td>\n *     </tr>\n *   </tbody>\n * </table>\n * ```\n *\n * ## Collaboration and undo - Expectations vs post-fixer results\n *\n * The table post-fixer only ensures proper structure without a deeper analysis of the nature of the change. As such, it might lead\n * to a structure which was not intended by the user. In particular, it will also fix undo steps (in conjunction with collaboration)\n * in which the editor content might not return to the original state.\n *\n * This will usually happen when one or more users change the size of the table.\n *\n * As an example see the table below:\n *\n * ```xml\n * <table>\n *   <tbody>\n *     <tr>\n *       <td>11</td>\n *       <td>12</td>\n *     </tr>\n *     <tr>\n *       <td>21</td>\n *       <td>22</td>\n *     </tr>\n *   </tbody>\n * </table>\n * ```\n *\n * and the user actions:\n *\n * 1. Both users have a table with two rows and two columns.\n * 2. User A adds a column at the end of the table. This will insert empty table cells to two rows.\n * 3. User B adds a row at the end of the table. This will insert a row with two empty table cells.\n * 4. Both users will have a table as below:\n *\n * ```xml\n * <table>\n *   <tbody>\n *     <tr>\n *       <td>11</td>\n *       <td>12</td>\n *       <td>(empty, inserted by A)</td>\n *     </tr>\n *     <tr>\n *       <td>21</td>\n *       <td>22</td>\n *       <td>(empty, inserted by A)</td>\n *     </tr>\n *     <tr>\n *       <td>(empty, inserted by B)</td>\n *       <td>(empty, inserted by B)</td>\n *     </tr>\n *   </tbody>\n * </table>\n * ```\n *\n * The last row is shorter then others so the table post-fixer will add an empty row to the last row:\n *\n * ```xml\n * <table>\n *   <tbody>\n *     <tr>\n *       <td>11</td>\n *       <td>12</td>\n *       <td>(empty, inserted by A)</td>\n *     </tr>\n *     <tr>\n *       <td>21</td>\n *       <td>22</td>\n *       <td>(empty, inserted by A)</td>\n *     </tr>\n *     <tr>\n *       <td>(empty, inserted by B)</td>\n *       <td>(empty, inserted by B)</td>\n *       <td>(empty, inserted by the post-fixer)</td>\n *     </tr>\n *   </tbody>\n * </table>\n * ```\n *\n * Unfortunately undo does not know the nature of the changes and depending on which user applies the post-fixer changes, undoing them\n * might lead to a broken table. If User B undoes inserting the column to the table, the undo engine will undo only the operations of\n * inserting empty cells to rows from the initial table state (row 1 and 2) but the cell in the post-fixed row will remain:\n *\n * ```xml\n * <table>\n *   <tbody>\n *     <tr>\n *       <td>11</td>\n *       <td>12</td>\n *     </tr>\n *     <tr>\n *       <td>21</td>\n *       <td>22</td>\n *     </tr>\n *     <tr>\n *       <td>(empty, inserted by B)</td>\n *       <td>(empty, inserted by B)</td>\n *       <td>(empty, inserted by a post-fixer)</td>\n *     </tr>\n *   </tbody>\n * </table>\n * ```\n *\n * After undo, the table post-fixer will detect that two rows are shorter than others and will fix the table to:\n *\n * ```xml\n * <table>\n *   <tbody>\n *     <tr>\n *       <td>11</td>\n *       <td>12</td>\n *       <td>(empty, inserted by a post-fixer after undo)</td>\n *     </tr>\n *     <tr>\n *       <td>21</td>\n *       <td>22</td>\n *       <td>(empty, inserted by a post-fixer after undo)</td>\n *     </tr>\n *     <tr>\n *       <td>(empty, inserted by B)</td>\n *       <td>(empty, inserted by B)</td>\n *       <td>(empty, inserted by a post-fixer)</td>\n *     </tr>\n *   </tbody>\n * </table>\n * ```\n */\nexport default function injectTableLayoutPostFixer( model: Model ): void {\n\tmodel.document.registerPostFixer( writer => tableLayoutPostFixer( writer, model ) );\n}\n\n/**\n * The table layout post-fixer.\n */\nfunction tableLayoutPostFixer( writer: Writer, model: Model ) {\n\tconst changes = model.document.differ.getChanges();\n\n\tlet wasFixed = false;\n\n\t// Do not analyze the same table more then once - may happen for multiple changes in the same table.\n\tconst analyzedTables = new Set();\n\n\tfor ( const entry of changes ) {\n\t\tlet table: Element | null = null;\n\n\t\tif ( entry.type == 'insert' && entry.name == 'table' ) {\n\t\t\ttable = entry.position.nodeAfter as Element;\n\t\t}\n\n\t\t// Fix table on adding/removing table cells and rows.\n\t\tif ( ( entry.type == 'insert' || entry.type == 'remove' ) && ( entry.name == 'tableRow' || entry.name == 'tableCell' ) ) {\n\t\t\ttable = entry.position.findAncestor( 'table' );\n\t\t}\n\n\t\t// Fix table on any table's attribute change - including attributes of table cells.\n\t\tif ( isTableAttributeEntry( entry ) ) {\n\t\t\ttable = entry.range.start.findAncestor( 'table' );\n\t\t}\n\n\t\tif ( table && !analyzedTables.has( table ) ) {\n\t\t\t// Step 1: correct rowspans of table cells if necessary.\n\t\t\t// The wasFixed flag should be true if any of tables in batch was fixed - might be more then one.\n\t\t\twasFixed = fixTableCellsRowspan( table, writer ) || wasFixed;\n\t\t\t// Step 2: fix table rows sizes.\n\t\t\twasFixed = fixTableRowsSizes( table, writer ) || wasFixed;\n\n\t\t\tanalyzedTables.add( table );\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n/**\n * Fixes the invalid value of the `rowspan` attribute because a table cell cannot vertically extend beyond the table section it belongs to.\n *\n * @returns Returns `true` if the table was fixed.\n */\nfunction fixTableCellsRowspan( table: Element, writer: Writer ) {\n\tlet wasFixed = false;\n\n\tconst cellsToTrim = findCellsToTrim( table );\n\n\tif ( cellsToTrim.length ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( `Post-fixing table: trimming cells row-spans (${ cellsToTrim.length }).` );\n\n\t\twasFixed = true;\n\n\t\tfor ( const data of cellsToTrim ) {\n\t\t\tupdateNumericAttribute( 'rowspan', data.rowspan, data.cell, writer, 1 );\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n/**\n * Makes all table rows in a table the same size.\n *\n * @returns Returns `true` if the table was fixed.\n */\nfunction fixTableRowsSizes( table: Element, writer: Writer ) {\n\tlet wasFixed = false;\n\n\tconst childrenLengths = getChildrenLengths( table );\n\tconst rowsToRemove = [];\n\n\t// Find empty rows.\n\tfor ( const [ rowIndex, size ] of childrenLengths.entries() ) {\n\t\t// Ignore all non-row models.\n\t\tif ( !size && table.getChild( rowIndex )!.is( 'element', 'tableRow' ) ) {\n\t\t\trowsToRemove.push( rowIndex );\n\t\t}\n\t}\n\n\t// Remove empty rows.\n\tif ( rowsToRemove.length ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( `Post-fixing table: remove empty rows (${ rowsToRemove.length }).` );\n\n\t\twasFixed = true;\n\n\t\tfor ( const rowIndex of rowsToRemove.reverse() ) {\n\t\t\twriter.remove( table.getChild( rowIndex )! );\n\t\t\tchildrenLengths.splice( rowIndex, 1 );\n\t\t}\n\t}\n\n\t// Filter out everything that's not a table row.\n\tconst rowsLengths = childrenLengths.filter( ( row, rowIndex ) => table.getChild( rowIndex )!.is( 'element', 'tableRow' ) );\n\n\t// Verify if all the rows have the same number of columns.\n\tconst tableSize = rowsLengths[ 0 ];\n\tconst isValid = rowsLengths.every( length => length === tableSize );\n\n\tif ( !isValid ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( 'Post-fixing table: adding missing cells.' );\n\n\t\t// Find the maximum number of columns.\n\t\tconst maxColumns = rowsLengths.reduce( ( prev, current ) => current > prev ? current : prev, 0 );\n\n\t\tfor ( const [ rowIndex, size ] of rowsLengths.entries() ) {\n\t\t\tconst columnsToInsert = maxColumns - size;\n\n\t\t\tif ( columnsToInsert ) {\n\t\t\t\tfor ( let i = 0; i < columnsToInsert; i++ ) {\n\t\t\t\t\tcreateEmptyTableCell( writer, writer.createPositionAt( table.getChild( rowIndex )!, 'end' ) );\n\t\t\t\t}\n\n\t\t\t\twasFixed = true;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n/**\n * Searches for table cells that extend beyond the table section to which they belong to. It will return an array of objects\n * that stores table cells to be trimmed and the correct value of the `rowspan` attribute to set.\n */\nfunction findCellsToTrim( table: Element ) {\n\tconst headingRows = parseInt( table.getAttribute( 'headingRows' ) as string || '0' );\n\tconst maxRows = Array.from( table.getChildren() )\n\t\t.reduce( ( count, row ) => row.is( 'element', 'tableRow' ) ? count + 1 : count, 0 );\n\n\tconst cellsToTrim = [];\n\n\tfor ( const { row, cell, cellHeight } of new TableWalker( table ) ) {\n\t\t// Skip cells that do not expand over its row.\n\t\tif ( cellHeight < 2 ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst isInHeader = row < headingRows;\n\n\t\t// Row limit is either end of header section or whole table as table body is after the header.\n\t\tconst rowLimit = isInHeader ? headingRows : maxRows;\n\n\t\t// If table cell expands over its limit reduce it height to proper value.\n\t\tif ( row + cellHeight > rowLimit ) {\n\t\t\tconst newRowspan = rowLimit - row;\n\n\t\t\tcellsToTrim.push( { cell, rowspan: newRowspan } );\n\t\t}\n\t}\n\n\treturn cellsToTrim;\n}\n\n/**\n * Returns an array with lengths of rows assigned to the corresponding row index.\n */\nfunction getChildrenLengths( table: Element ) {\n\t// TableWalker will not provide items for the empty rows, we need to pre-fill this array.\n\tconst lengths = new Array( table.childCount ).fill( 0 );\n\n\tfor ( const { rowIndex } of new TableWalker( table, { includeAllSlots: true } ) ) {\n\t\tlengths[ rowIndex ]++;\n\t}\n\n\treturn lengths;\n}\n\n/**\n * Checks if the differ entry for an attribute change is one of the table's attributes.\n */\nfunction isTableAttributeEntry( entry: DiffItem ): entry is DiffItemAttribute {\n\tif ( entry.type !== 'attribute' ) {\n\t\treturn false;\n\t}\n\n\tconst key = entry.attributeKey;\n\n\treturn key === 'headingRows' || key === 'colspan' || key === 'rowspan';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-cell-paragraph-post-fixer\n */\n\nimport type { Model, Writer, Element, DiffItemInsert, DiffItemRemove } from 'ckeditor5/src/engine';\n\n/**\n * Injects a table cell post-fixer into the model which inserts a `paragraph` element into empty table cells.\n *\n * A table cell must contain at least one block element as a child. An empty table cell will have an empty `paragraph` as a child.\n *\n * ```xml\n * <table>\n *   <tableRow>\n *      <tableCell></tableCell>\n *   </tableRow>\n * </table>\n * ```\n *\n * Will be fixed to:\n *\n * ```xml\n * <table>\n *   <tableRow>\n *      <tableCell><paragraph></paragraph></tableCell>\n *   </tableRow>\n * </table>\n * ```\n */\nexport default function injectTableCellParagraphPostFixer( model: Model ): void {\n\tmodel.document.registerPostFixer( writer => tableCellContentsPostFixer( writer, model ) );\n}\n\n/**\n * The table cell contents post-fixer.\n */\nfunction tableCellContentsPostFixer( writer: Writer, model: Model ) {\n\tconst changes = model.document.differ.getChanges();\n\n\tlet wasFixed = false;\n\n\tfor ( const entry of changes ) {\n\t\tif ( entry.type == 'insert' && entry.name == 'table' ) {\n\t\t\twasFixed = fixTable( entry.position.nodeAfter as Element, writer ) || wasFixed;\n\t\t}\n\n\t\tif ( entry.type == 'insert' && entry.name == 'tableRow' ) {\n\t\t\twasFixed = fixTableRow( entry.position.nodeAfter as Element, writer ) || wasFixed;\n\t\t}\n\n\t\tif ( entry.type == 'insert' && entry.name == 'tableCell' ) {\n\t\t\twasFixed = fixTableCellContent( entry.position.nodeAfter as Element, writer ) || wasFixed;\n\t\t}\n\n\t\tif ( ( entry.type == 'remove' || entry.type == 'insert' ) && checkTableCellChange( entry ) ) {\n\t\t\twasFixed = fixTableCellContent( entry.position.parent as Element, writer ) || wasFixed;\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n/**\n * Fixes all table cells in a table.\n */\nfunction fixTable( table: Element, writer: Writer ) {\n\tlet wasFixed = false;\n\n\tfor ( const row of table.getChildren() ) {\n\t\tif ( row.is( 'element', 'tableRow' ) ) {\n\t\t\twasFixed = fixTableRow( row, writer ) || wasFixed;\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n\n/**\n * Fixes all table cells in a table row.\n */\nfunction fixTableRow( tableRow: Element, writer: Writer ) {\n\tlet wasFixed = false;\n\n\tfor ( const tableCell of tableRow.getChildren() as IterableIterator<Element> ) {\n\t\twasFixed = fixTableCellContent( tableCell, writer ) || wasFixed;\n\t}\n\n\treturn wasFixed;\n}\n\n/**\n * Fixes all table cell content by:\n * - Adding a paragraph to a table cell without any child.\n * - Wrapping direct $text in a `<paragraph>`.\n */\nfunction fixTableCellContent( tableCell: Element, writer: Writer ) {\n\t// Insert paragraph to an empty table cell.\n\tif ( tableCell.childCount == 0 ) {\n\t\t// @if CK_DEBUG_TABLE // console.log( 'Post-fixing table: insert paragraph in empty cell.' );\n\n\t\twriter.insertElement( 'paragraph', tableCell );\n\n\t\treturn true;\n\t}\n\n\t// Check table cell children for directly placed text nodes.\n\t// Temporary solution. See https://github.com/ckeditor/ckeditor5/issues/1464.\n\tconst textNodes = Array.from( tableCell.getChildren() ).filter( child => child.is( '$text' ) );\n\n\t// @if CK_DEBUG_TABLE // textNodes.length && console.log( 'Post-fixing table: wrap cell content with paragraph.' );\n\n\tfor ( const child of textNodes ) {\n\t\twriter.wrap( writer.createRangeOn( child ), 'paragraph' );\n\t}\n\n\t// Return true when there were text nodes to fix.\n\treturn !!textNodes.length;\n}\n\n/**\n * Checks if a differ change should fix the table cell. This happens on:\n * - Removing content from the table cell (i.e. `tableCell` can be left empty).\n * - Adding a text node directly into a table cell.\n */\nfunction checkTableCellChange( entry: DiffItemInsert | DiffItemRemove ) {\n\tif ( !entry.position.parent.is( 'element', 'tableCell' ) ) {\n\t\treturn false;\n\t}\n\n\treturn entry.type == 'insert' && entry.name == '$text' || entry.type == 'remove';\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-cell-refresh-handler\n */\n\nimport type {\n\tEditingController,\n\tElement,\n\tMapper,\n\tModel\n} from 'ckeditor5/src/engine';\n\nimport { isSingleParagraphWithoutAttributes } from './downcast';\n\n/**\n * A table cell refresh handler which marks the table cell in the differ to have it re-rendered.\n *\n * Model `paragraph` inside a table cell can be rendered as `<span>` or `<p>`. It is rendered as `<span>` if this is the only block\n * element in that table cell and it does not have any attributes. It is rendered as `<p>` otherwise.\n *\n * When table cell content changes, for example a second `paragraph` element is added, we need to ensure that the first `paragraph` is\n * re-rendered so it changes from `<span>` to `<p>`. The easiest way to do it is to re-render the entire table cell.\n */\nexport default function tableCellRefreshHandler( model: Model, editing: EditingController ): void {\n\tconst differ = model.document.differ;\n\n\t// Stores cells to be refreshed, so the table cell will be refreshed once for multiple changes.\n\tconst cellsToCheck = new Set();\n\n\tfor ( const change of differ.getChanges() ) {\n\t\tconst parent = change.type == 'attribute' ? change.range.start.parent : change.position.parent;\n\n\t\tif ( parent.is( 'element', 'tableCell' ) ) {\n\t\t\tcellsToCheck.add( parent );\n\t\t}\n\t}\n\n\tfor ( const tableCell of cellsToCheck.values() as Iterable<Element> ) {\n\t\tconst paragraphsToRefresh = Array.from( tableCell.getChildren() )\n\t\t\t.filter( child => shouldRefresh( child as Element, editing.mapper ) );\n\n\t\tfor ( const paragraph of paragraphsToRefresh ) {\n\t\t\tediting.reconvertItem( paragraph );\n\t\t}\n\t}\n}\n\n/**\n * Check if given model element needs refreshing.\n */\nfunction shouldRefresh( child: Element, mapper: Mapper ) {\n\tif ( !child.is( 'element', 'paragraph' ) ) {\n\t\treturn false;\n\t}\n\n\tconst viewElement = mapper.toViewElement( child );\n\n\tif ( !viewElement ) {\n\t\treturn false;\n\t}\n\n\treturn isSingleParagraphWithoutAttributes( child ) !== viewElement.is( 'element', 'span' );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableediting.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport type { PositionOffset, ViewElement, SlotFilter } from 'ckeditor5/src/engine';\n\nimport upcastTable, { ensureParagraphInTableCell, skipEmptyTableRow, upcastTableFigure } from './converters/upcasttable';\nimport { convertParagraphInTableCell, downcastCell, downcastRow, downcastTable } from './converters/downcast';\n\nimport InsertTableCommand from './commands/inserttablecommand';\nimport InsertRowCommand from './commands/insertrowcommand';\nimport InsertColumnCommand from './commands/insertcolumncommand';\nimport SplitCellCommand from './commands/splitcellcommand';\nimport MergeCellCommand from './commands/mergecellcommand';\nimport RemoveRowCommand from './commands/removerowcommand';\nimport RemoveColumnCommand from './commands/removecolumncommand';\nimport SetHeaderRowCommand from './commands/setheaderrowcommand';\nimport SetHeaderColumnCommand from './commands/setheadercolumncommand';\nimport MergeCellsCommand from './commands/mergecellscommand';\nimport SelectRowCommand from './commands/selectrowcommand';\nimport SelectColumnCommand from './commands/selectcolumncommand';\nimport TableUtils from '../src/tableutils';\n\nimport injectTableLayoutPostFixer from './converters/table-layout-post-fixer';\nimport injectTableCellParagraphPostFixer from './converters/table-cell-paragraph-post-fixer';\n\nimport tableHeadingsRefreshHandler from './converters/table-headings-refresh-handler';\nimport tableCellRefreshHandler from './converters/table-cell-refresh-handler';\n\nimport '../theme/tableediting.css';\n\n/**\n * The table editing feature.\n */\nexport default class TableEditing extends Plugin {\n\t/**\n\t * Handlers for creating additional slots in the table.\n\t */\n\tprivate _additionalSlots: Array<AdditionalSlot>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableEditing' {\n\t\treturn 'TableEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._additionalSlots = [];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst schema = model.schema;\n\t\tconst conversion = editor.conversion;\n\t\tconst tableUtils = editor.plugins.get( TableUtils );\n\n\t\tschema.register( 'table', {\n\t\t\tinheritAllFrom: '$blockObject',\n\t\t\tallowAttributes: [ 'headingRows', 'headingColumns' ]\n\t\t} );\n\n\t\tschema.register( 'tableRow', {\n\t\t\tallowIn: 'table',\n\t\t\tisLimit: true\n\t\t} );\n\n\t\tschema.register( 'tableCell', {\n\t\t\tallowContentOf: '$container',\n\t\t\tallowIn: 'tableRow',\n\t\t\tallowAttributes: [ 'colspan', 'rowspan' ],\n\t\t\tisLimit: true,\n\t\t\tisSelectable: true\n\t\t} );\n\n\t\t// Figure conversion.\n\t\tconversion.for( 'upcast' ).add( upcastTableFigure() );\n\n\t\t// Table conversion.\n\t\tconversion.for( 'upcast' ).add( upcastTable() );\n\n\t\tconversion.for( 'editingDowncast' ).elementToStructure( {\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tattributes: [ 'headingRows' ]\n\t\t\t},\n\t\t\tview: downcastTable( tableUtils, {\n\t\t\t\tasWidget: true,\n\t\t\t\tadditionalSlots: this._additionalSlots\n\t\t\t} )\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToStructure( {\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tattributes: [ 'headingRows' ]\n\t\t\t},\n\t\t\tview: downcastTable( tableUtils, {\n\t\t\t\tadditionalSlots: this._additionalSlots\n\t\t\t} )\n\t\t} );\n\n\t\t// Table row conversion.\n\t\tconversion.for( 'upcast' ).elementToElement( { model: 'tableRow', view: 'tr' } );\n\t\tconversion.for( 'upcast' ).add( skipEmptyTableRow() );\n\n\t\tconversion.for( 'downcast' ).elementToElement( {\n\t\t\tmodel: 'tableRow',\n\t\t\tview: downcastRow()\n\t\t} );\n\n\t\t// Table cell conversion.\n\t\tconversion.for( 'upcast' ).elementToElement( { model: 'tableCell', view: 'td' } );\n\t\tconversion.for( 'upcast' ).elementToElement( { model: 'tableCell', view: 'th' } );\n\t\tconversion.for( 'upcast' ).add( ensureParagraphInTableCell( 'td' ) );\n\t\tconversion.for( 'upcast' ).add( ensureParagraphInTableCell( 'th' ) );\n\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'tableCell',\n\t\t\tview: downcastCell( { asWidget: true } )\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'tableCell',\n\t\t\tview: downcastCell()\n\t\t} );\n\n\t\t// Duplicates code - needed to properly refresh paragraph inside a table cell.\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'paragraph',\n\t\t\tview: convertParagraphInTableCell( { asWidget: true } ),\n\t\t\tconverterPriority: 'high'\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'paragraph',\n\t\t\tview: convertParagraphInTableCell(),\n\t\t\tconverterPriority: 'high'\n\t\t} );\n\n\t\t// Table attributes conversion.\n\t\tconversion.for( 'downcast' ).attributeToAttribute( { model: 'colspan', view: 'colspan' } );\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tmodel: { key: 'colspan', value: upcastCellSpan( 'colspan' ) },\n\t\t\tview: 'colspan'\n\t\t} );\n\n\t\tconversion.for( 'downcast' ).attributeToAttribute( { model: 'rowspan', view: 'rowspan' } );\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tmodel: { key: 'rowspan', value: upcastCellSpan( 'rowspan' ) },\n\t\t\tview: 'rowspan'\n\t\t} );\n\n\t\t// Define the config.\n\t\teditor.config.define( 'table.defaultHeadings.rows', 0 );\n\t\teditor.config.define( 'table.defaultHeadings.columns', 0 );\n\n\t\t// Define all the commands.\n\t\teditor.commands.add( 'insertTable', new InsertTableCommand( editor ) );\n\t\teditor.commands.add( 'insertTableRowAbove', new InsertRowCommand( editor, { order: 'above' } ) );\n\t\teditor.commands.add( 'insertTableRowBelow', new InsertRowCommand( editor, { order: 'below' } ) );\n\t\teditor.commands.add( 'insertTableColumnLeft', new InsertColumnCommand( editor, { order: 'left' } ) );\n\t\teditor.commands.add( 'insertTableColumnRight', new InsertColumnCommand( editor, { order: 'right' } ) );\n\n\t\teditor.commands.add( 'removeTableRow', new RemoveRowCommand( editor ) );\n\t\teditor.commands.add( 'removeTableColumn', new RemoveColumnCommand( editor ) );\n\n\t\teditor.commands.add( 'splitTableCellVertically', new SplitCellCommand( editor, { direction: 'vertically' } ) );\n\t\teditor.commands.add( 'splitTableCellHorizontally', new SplitCellCommand( editor, { direction: 'horizontally' } ) );\n\n\t\teditor.commands.add( 'mergeTableCells', new MergeCellsCommand( editor ) );\n\n\t\teditor.commands.add( 'mergeTableCellRight', new MergeCellCommand( editor, { direction: 'right' } ) );\n\t\teditor.commands.add( 'mergeTableCellLeft', new MergeCellCommand( editor, { direction: 'left' } ) );\n\t\teditor.commands.add( 'mergeTableCellDown', new MergeCellCommand( editor, { direction: 'down' } ) );\n\t\teditor.commands.add( 'mergeTableCellUp', new MergeCellCommand( editor, { direction: 'up' } ) );\n\n\t\teditor.commands.add( 'setTableColumnHeader', new SetHeaderColumnCommand( editor ) );\n\t\teditor.commands.add( 'setTableRowHeader', new SetHeaderRowCommand( editor ) );\n\n\t\teditor.commands.add( 'selectTableRow', new SelectRowCommand( editor ) );\n\t\teditor.commands.add( 'selectTableColumn', new SelectColumnCommand( editor ) );\n\n\t\tinjectTableLayoutPostFixer( model );\n\t\tinjectTableCellParagraphPostFixer( model );\n\n\t\tthis.listenTo( model.document, 'change:data', () => {\n\t\t\ttableHeadingsRefreshHandler( model, editor.editing );\n\t\t\ttableCellRefreshHandler( model, editor.editing );\n\t\t} );\n\t}\n\n\t/**\n\t * Registers downcast handler for the additional table slot.\n\t */\n\tpublic registerAdditionalSlot( slotHandler: AdditionalSlot ): void {\n\t\tthis._additionalSlots.push( slotHandler );\n\t}\n}\n\n/**\n * Returns fixed colspan and rowspan attrbutes values.\n *\n * @param type colspan or rowspan.\n * @returns conversion value function.\n */\nfunction upcastCellSpan( type: string ) {\n\treturn ( cell: ViewElement ) => {\n\t\tconst span = parseInt( cell.getAttribute( type )! );\n\n\t\tif ( Number.isNaN( span ) || span <= 0 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn span;\n\t};\n}\n\n/**\n * By default, only the `tableRow` elements from the `table` model are downcast inside the `<table>` and\n * all other elements are pushed outside the table. This handler allows creating additional slots inside\n * the table for other elements.\n *\n * Take this model as an example:\n *\n * ```xml\n * <table>\n *   <tableRow>...</tableRow>\n *   <tableRow>...</tableRow>\n *   <tableColumnGroup>...</tableColumnGroup>\n * </table>\n * ```\n *\n * By default, downcasting result will be:\n *\n * ```xml\n * <table>\n *   <tbody>\n *     <tr>...</tr>\n *     <tr>...</tr>\n *   </tbody>\n * </table>\n * <colgroup>...</colgroup>\n * ```\n *\n * To allow the `tableColumnGroup` element at the end of the table, use the following configuration:\n *\n * ```ts\n * const additionalSlot = {\n *   filter: element => element.is( 'element', 'tableColumnGroup' ),\n *   positionOffset: 'end'\n * }\n * ```\n *\n * Now, the downcast result will be:\n *\n * ```xml\n * <table>\n *   <tbody>\n *     <tr>...</tr>\n *     <tr>...</tr>\n *   </tbody>\n *   <colgroup>...</colgroup>\n * </table>\n * ```\n */\nexport interface AdditionalSlot {\n\n\t/**\n\t * Filter for elements that should be placed inside given slot.\n\t */\n\tfilter: SlotFilter;\n\n\t/**\n\t * Position of the slot within the table.\n\t */\n\tpositionOffset: PositionOffset;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-headings-refresh-handler\n */\n\nimport type {\n\tEditingController,\n\tElement,\n\tModel\n} from 'ckeditor5/src/engine';\n\nimport TableWalker from '../tablewalker';\n\n/**\n * A table headings refresh handler which marks the table cells or rows in the differ to have it re-rendered\n * if the headings attribute changed.\n *\n * Table heading rows and heading columns are represented in the model by a `headingRows` and `headingColumns` attributes.\n *\n * When table headings attribute changes, all the cells/rows are marked to re-render to change between `<td>` and `<th>`.\n */\nexport default function tableHeadingsRefreshHandler( model: Model, editing: EditingController ): void {\n\tconst differ = model.document.differ;\n\n\tfor ( const change of differ.getChanges() ) {\n\t\tlet table;\n\t\tlet isRowChange = false;\n\n\t\tif ( change.type == 'attribute' ) {\n\t\t\tconst element = change.range.start.nodeAfter;\n\n\t\t\tif ( !element || !element.is( 'element', 'table' ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( change.attributeKey != 'headingRows' && change.attributeKey != 'headingColumns' ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\ttable = element;\n\t\t\tisRowChange = change.attributeKey == 'headingRows';\n\t\t} else if ( change.name == 'tableRow' || change.name == 'tableCell' ) {\n\t\t\ttable = change.position.findAncestor( 'table' );\n\t\t\tisRowChange = change.name == 'tableRow';\n\t\t}\n\n\t\tif ( !table ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst headingRows = table.getAttribute( 'headingRows' ) || 0;\n\t\tconst headingColumns = table.getAttribute( 'headingColumns' ) || 0;\n\n\t\tconst tableWalker = new TableWalker( table );\n\n\t\tfor ( const tableSlot of tableWalker ) {\n\t\t\tconst isHeading = tableSlot.row < headingRows || tableSlot.column < headingColumns;\n\t\t\tconst expectedElementName = isHeading ? 'th' : 'td';\n\n\t\t\tconst viewElement = editing.mapper.toViewElement( tableSlot.cell );\n\n\t\t\tif ( viewElement && viewElement.is( 'element' ) && viewElement.name != expectedElementName ) {\n\t\t\t\tediting.reconvertItem( ( isRowChange ? tableSlot.cell.parent : tableSlot.cell ) as Element );\n\t\t\t}\n\t\t}\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./inserttable.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/ui/inserttableview\n */\n\nimport { View, ButtonView, addKeyboardHandlingForGrid, type ViewCollection } from 'ckeditor5/src/ui';\n\nimport { KeystrokeHandler, FocusTracker, type Locale } from 'ckeditor5/src/utils';\n\nimport './../../theme/inserttable.css';\n\n/**\n * The table size view.\n *\n * It renders a 10x10 grid to choose the inserted table size.\n */\nexport default class InsertTableView extends View {\n\t/**\n\t * A collection of table size box items.\n\t */\n\tpublic readonly items: ViewCollection<ButtonView>;\n\n\t/**\n\t * Listen to `keydown` events fired in this view's main element.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * Tracks information about the DOM focus in the grid.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * The currently selected number of rows of the new table.\n\t *\n\t * @observable\n\t */\n\tdeclare public rows: number;\n\n\t/**\n\t * The currently selected number of columns of the new table.\n\t *\n\t * @observable\n\t */\n\tdeclare public columns: number;\n\n\t/**\n\t * The label text displayed under the boxes.\n\t *\n\t * @observable\n\t */\n\tdeclare public label: string;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\t\tthis.items = this._createGridCollection();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.set( 'rows', 0 );\n\t\tthis.set( 'columns', 0 );\n\t\tthis.bind( 'label' ).to( this, 'columns', this, 'rows', ( columns, rows ) => `${ rows } × ${ columns }` );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [ 'ck' ]\n\t\t\t},\n\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [ 'ck-insert-table-dropdown__grid' ]\n\t\t\t\t\t},\n\t\t\t\t\ton: {\n\t\t\t\t\t\t'mouseover@.ck-insert-table-dropdown-grid-box': bind.to( 'boxover' )\n\t\t\t\t\t},\n\t\t\t\t\tchildren: this.items\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t\t'ck-insert-table-dropdown__label'\n\t\t\t\t\t\t],\n\t\t\t\t\t\t'aria-hidden': true\n\t\t\t\t\t},\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\ttext: bind.to( 'label' )\n\t\t\t\t\t\t}\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t],\n\n\t\t\ton: {\n\t\t\t\tmousedown: bind.to( evt => {\n\t\t\t\t\tevt.preventDefault();\n\t\t\t\t} ),\n\n\t\t\t\tclick: bind.to( () => {\n\t\t\t\t\tthis.fire( 'execute' );\n\t\t\t\t} )\n\t\t\t}\n\t\t} );\n\n\t\t// #rows and #columns are set via changes to #focusTracker on mouse over.\n\t\tthis.on( 'boxover', ( evt, domEvt ) => {\n\t\t\tconst { row, column } = domEvt.target.dataset;\n\t\t\tthis.items.get( ( parseInt( row, 10 ) - 1 ) * 10 + ( parseInt( column, 10 ) - 1 ) )!.focus();\n\t\t} );\n\n\t\t// This allows the #rows and #columns to be updated when:\n\t\t// * the user navigates the grid using the keyboard,\n\t\t// * the user moves the mouse over grid items.\n\t\tthis.focusTracker.on( 'change:focusedElement', ( evt, name, focusedElement ) => {\n\t\t\tif ( !focusedElement ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst { row, column } = focusedElement.dataset;\n\n\t\t\t// As row & column indexes are zero-based transform it to number of selected rows & columns.\n\t\t\tthis.set( {\n\t\t\t\trows: parseInt( row ),\n\t\t\t\tcolumns: parseInt( column )\n\t\t\t} );\n\t\t} );\n\n\t\tthis.on( 'change:columns', () => this._highlightGridBoxes() );\n\t\tthis.on( 'change:rows', () => this._highlightGridBoxes() );\n\t}\n\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\taddKeyboardHandlingForGrid( {\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tgridItems: this.items,\n\t\t\tnumberOfColumns: 10,\n\t\t\tuiLanguageDirection: this.locale && this.locale.uiLanguageDirection\n\t\t} );\n\n\t\tfor ( const item of this.items ) {\n\t\t\tthis.focusTracker.add( item.element! );\n\t\t}\n\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic focus(): void {\n\t\tthis.items.get( 0 )!.focus();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic focusLast(): void {\n\t\tthis.items.get( 0 )!.focus();\n\t}\n\n\t/**\n\t * Highlights grid boxes depending on rows and columns selected.\n\t */\n\tprivate _highlightGridBoxes() {\n\t\tconst rows = this.rows;\n\t\tconst columns = this.columns;\n\n\t\tthis.items.map( ( boxView, index ) => {\n\t\t\t// Translate box index to the row & column index.\n\t\t\tconst itemRow = Math.floor( index / 10 );\n\t\t\tconst itemColumn = index % 10;\n\n\t\t\t// Grid box is highlighted when its row & column index belongs to selected number of rows & columns.\n\t\t\tconst isOn = itemRow < rows && itemColumn < columns;\n\n\t\t\tboxView.set( 'isOn', isOn );\n\t\t} );\n\t}\n\n\t/**\n\t * Creates a new Button for the grid.\n\t *\n\t * @param locale The locale instance.\n\t * @param row Row number.\n\t * @param column Column number.\n\t * @param label The grid button label.\n\t */\n\tprivate _createGridButton( locale: Locale, row: number, column: number, label: string ): ButtonView {\n\t\tconst button = new ButtonView( locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\tclass: 'ck-insert-table-dropdown-grid-box'\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\t'data-row': row,\n\t\t\t\t'data-column': column\n\t\t\t}\n\t\t} );\n\n\t\treturn button;\n\t}\n\n\t/**\n\t * @returns A view collection containing boxes to be placed in a table grid.\n\t */\n\tprivate _createGridCollection() {\n\t\tconst boxes = [];\n\n\t\t// Add grid boxes to table selection view.\n\t\tfor ( let index = 0; index < 100; index++ ) {\n\t\t\tconst row = Math.floor( index / 10 );\n\t\t\tconst column = index % 10;\n\t\t\tconst label = `${ row + 1 } × ${ column + 1 }`;\n\n\t\t\tboxes.push( this._createGridButton( this.locale!, row + 1, column + 1, label ) );\n\t\t}\n\n\t\treturn this.createCollection( boxes );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableui\n */\n\nimport { Plugin, type Command, type Editor } from 'ckeditor5/src/core';\nimport {\n\taddListToDropdown,\n\tcreateDropdown,\n\tModel,\n\tSplitButtonView,\n\tSwitchButtonView,\n\ttype DropdownView,\n\ttype ListDropdownItemDefinition\n} from 'ckeditor5/src/ui';\nimport { Collection, type Locale } from 'ckeditor5/src/utils';\n\nimport InsertTableView from './ui/inserttableview';\n\nimport tableIcon from './../theme/icons/table.svg';\nimport tableColumnIcon from './../theme/icons/table-column.svg';\nimport tableRowIcon from './../theme/icons/table-row.svg';\nimport tableMergeCellIcon from './../theme/icons/table-merge-cell.svg';\nimport type InsertTableCommand from './commands/inserttablecommand';\nimport type MergeCellsCommand from './commands/mergecellscommand';\n\n/**\n * The table UI plugin. It introduces:\n *\n * * The `'insertTable'` dropdown,\n * * The `'tableColumn'` dropdown,\n * * The `'tableRow'` dropdown,\n * * The `'mergeTableCells'` split button.\n *\n * The `'tableColumn'`, `'tableRow'` and `'mergeTableCells'` dropdowns work best with {@link module:table/tabletoolbar~TableToolbar}.\n */\nexport default class TableUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableUI' {\n\t\treturn 'TableUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = this.editor.t;\n\t\tconst contentLanguageDirection = editor.locale.contentLanguageDirection;\n\t\tconst isContentLtr = contentLanguageDirection === 'ltr';\n\n\t\teditor.ui.componentFactory.add( 'insertTable', locale => {\n\t\t\tconst command: InsertTableCommand = editor.commands.get( 'insertTable' )!;\n\t\t\tconst dropdownView = createDropdown( locale );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\t// Decorate dropdown's button.\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\ticon: tableIcon,\n\t\t\t\tlabel: t( 'Insert table' ),\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tlet insertTableView: InsertTableView;\n\n\t\t\tdropdownView.on( 'change:isOpen', () => {\n\t\t\t\tif ( insertTableView ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// Prepare custom view for dropdown's panel.\n\t\t\t\tinsertTableView = new InsertTableView( locale );\n\t\t\t\tdropdownView.panelView.children.add( insertTableView );\n\n\t\t\t\tinsertTableView.delegate( 'execute' ).to( dropdownView );\n\n\t\t\t\tdropdownView.on( 'execute', () => {\n\t\t\t\t\teditor.execute( 'insertTable', { rows: insertTableView.rows, columns: insertTableView.columns } );\n\t\t\t\t\teditor.editing.view.focus();\n\t\t\t\t} );\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\n\t\teditor.ui.componentFactory.add( 'tableColumn', locale => {\n\t\t\tconst options = [\n\t\t\t\t{\n\t\t\t\t\ttype: 'switchbutton',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'setTableColumnHeader',\n\t\t\t\t\t\tlabel: t( 'Header column' ),\n\t\t\t\t\t\tbindIsOn: true\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{ type: 'separator' },\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'insertTableColumnLeft' : 'insertTableColumnRight',\n\t\t\t\t\t\tlabel: t( 'Insert column left' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'insertTableColumnRight' : 'insertTableColumnLeft',\n\t\t\t\t\t\tlabel: t( 'Insert column right' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'removeTableColumn',\n\t\t\t\t\t\tlabel: t( 'Delete column' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'selectTableColumn',\n\t\t\t\t\t\tlabel: t( 'Select column' )\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t] as Array<ListDropdownItemDefinition>;\n\n\t\t\treturn this._prepareDropdown( t( 'Column' ), tableColumnIcon, options, locale );\n\t\t} );\n\n\t\teditor.ui.componentFactory.add( 'tableRow', locale => {\n\t\t\tconst options = [\n\t\t\t\t{\n\t\t\t\t\ttype: 'switchbutton',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'setTableRowHeader',\n\t\t\t\t\t\tlabel: t( 'Header row' ),\n\t\t\t\t\t\tbindIsOn: true\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{ type: 'separator' },\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'insertTableRowAbove',\n\t\t\t\t\t\tlabel: t( 'Insert row above' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'insertTableRowBelow',\n\t\t\t\t\t\tlabel: t( 'Insert row below' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'removeTableRow',\n\t\t\t\t\t\tlabel: t( 'Delete row' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'selectTableRow',\n\t\t\t\t\t\tlabel: t( 'Select row' )\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t] as Array<ListDropdownItemDefinition>;\n\n\t\t\treturn this._prepareDropdown( t( 'Row' ), tableRowIcon, options, locale );\n\t\t} );\n\n\t\teditor.ui.componentFactory.add( 'mergeTableCells', locale => {\n\t\t\tconst options = [\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'mergeTableCellUp',\n\t\t\t\t\t\tlabel: t( 'Merge cell up' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'mergeTableCellRight' : 'mergeTableCellLeft',\n\t\t\t\t\t\tlabel: t( 'Merge cell right' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'mergeTableCellDown',\n\t\t\t\t\t\tlabel: t( 'Merge cell down' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: isContentLtr ? 'mergeTableCellLeft' : 'mergeTableCellRight',\n\t\t\t\t\t\tlabel: t( 'Merge cell left' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{ type: 'separator' },\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'splitTableCellVertically',\n\t\t\t\t\t\tlabel: t( 'Split cell vertically' )\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\ttype: 'button',\n\t\t\t\t\tmodel: {\n\t\t\t\t\t\tcommandName: 'splitTableCellHorizontally',\n\t\t\t\t\t\tlabel: t( 'Split cell horizontally' )\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t] as Array<ListDropdownItemDefinition>;\n\n\t\t\treturn this._prepareMergeSplitButtonDropdown( t( 'Merge cells' ), tableMergeCellIcon, options, locale );\n\t\t} );\n\t}\n\n\t/**\n\t * Creates a dropdown view from a set of options.\n\t *\n\t * @param label The dropdown button label.\n\t * @param icon An icon for the dropdown button.\n\t * @param options The list of options for the dropdown.\n\t */\n\tprivate _prepareDropdown( label: string, icon: string, options: Array<ListDropdownItemDefinition>, locale: Locale ) {\n\t\tconst editor = this.editor;\n\t\tconst dropdownView = createDropdown( locale );\n\t\tconst commands = this._fillDropdownWithListOptions( dropdownView, options );\n\n\t\t// Decorate dropdown's button.\n\t\tdropdownView.buttonView.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\t// Make dropdown button disabled when all options are disabled.\n\t\tdropdownView.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => {\n\t\t\treturn areEnabled.some( isEnabled => isEnabled );\n\t\t} );\n\n\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\teditor.execute( ( evt.source as any ).commandName );\n\n\t\t\t// Toggling a switch button view should not move the focus to the editable.\n\t\t\tif ( !( evt.source instanceof SwitchButtonView ) ) {\n\t\t\t\teditor.editing.view.focus();\n\t\t\t}\n\t\t} );\n\n\t\treturn dropdownView;\n\t}\n\n\t/**\n\t * Creates a dropdown view with a {@link module:ui/dropdown/button/splitbuttonview~SplitButtonView} for\n\t * merge (and split)–related commands.\n\t *\n\t * @param label The dropdown button label.\n\t * @param icon An icon for the dropdown button.\n\t * @param options The list of options for the dropdown.\n\t */\n\tprivate _prepareMergeSplitButtonDropdown( label: string, icon: string, options: Array<ListDropdownItemDefinition>, locale: Locale ) {\n\t\tconst editor = this.editor;\n\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\tconst mergeCommandName = 'mergeTableCells';\n\n\t\t// Main command.\n\t\tconst mergeCommand: MergeCellsCommand = editor.commands.get( mergeCommandName )!;\n\n\t\t// Subcommands in the dropdown.\n\t\tconst commands = this._fillDropdownWithListOptions( dropdownView, options );\n\n\t\tdropdownView.buttonView.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true,\n\t\t\tisEnabled: true\n\t\t} );\n\n\t\t// Make dropdown button disabled when all options are disabled together with the main command.\n\t\tdropdownView.bind( 'isEnabled' ).toMany( [ mergeCommand, ...commands ], 'isEnabled', ( ...areEnabled ) => {\n\t\t\treturn areEnabled.some( isEnabled => isEnabled );\n\t\t} );\n\n\t\t// Merge selected table cells when the main part of the split button is clicked.\n\t\tthis.listenTo( dropdownView.buttonView, 'execute', () => {\n\t\t\teditor.execute( mergeCommandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\t// Execute commands for events coming from the list in the dropdown panel.\n\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\teditor.execute( ( evt.source as any ).commandName );\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn dropdownView;\n\t}\n\n\t/**\n\t * Injects a {@link module:ui/list/listview~ListView} into the passed dropdown with buttons\n\t * which execute editor commands as configured in passed options.\n\t *\n\t * @param options The list of options for the dropdown.\n\t * @returns Commands the list options are interacting with.\n\t */\n\tprivate _fillDropdownWithListOptions( dropdownView: DropdownView, options: Array<ListDropdownItemDefinition> ) {\n\t\tconst editor = this.editor;\n\t\tconst commands: Array<Command> = [];\n\t\tconst itemDefinitions = new Collection<ListDropdownItemDefinition>();\n\n\t\tfor ( const option of options ) {\n\t\t\taddListOption( option, editor, commands, itemDefinitions );\n\t\t}\n\n\t\taddListToDropdown( dropdownView, itemDefinitions );\n\n\t\treturn commands;\n\t}\n}\n\n/**\n * Adds an option to a list view.\n *\n * @param option A configuration option.\n * @param commands The list of commands to update.\n * @param itemDefinitions A collection of dropdown items to update with the given option.\n */\nfunction addListOption(\n\toption: ListDropdownItemDefinition,\n\teditor: Editor,\n\tcommands: Array<Command>,\n\titemDefinitions: Collection<ListDropdownItemDefinition>\n) {\n\tif ( option.type === 'button' || option.type === 'switchbutton' ) {\n\t\tconst model = option.model = new Model( option.model );\n\t\tconst { commandName, bindIsOn } = option.model;\n\t\tconst command = editor.commands.get( commandName as string )!;\n\n\t\tcommands.push( command );\n\n\t\tmodel.set( { commandName } );\n\n\t\tmodel.bind( 'isEnabled' ).to( command );\n\n\t\tif ( bindIsOn ) {\n\t\t\tmodel.bind( 'isOn' ).to( command, 'value' );\n\t\t}\n\n\t\tmodel.set( {\n\t\t\twithText: true\n\t\t} );\n\t}\n\n\titemDefinitions.add( option );\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 6v3h4V6H3zm0 4v3h4v-3H3zm0 4v3h4v-3H3zm5 3h4v-3H8v3zm5 0h4v-3h-4v3zm4-4v-3h-4v3h4zm0-4V6h-4v3h4zm1.5 8a1.5 1.5 0 0 1-1.5 1.5H3A1.5 1.5 0 0 1 1.5 17V4c.222-.863 1.068-1.5 2-1.5h13c.932 0 1.778.637 2 1.5v13zM12 13v-3H8v3h4zm0-4V6H8v3h4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z\\\" opacity=\\\".6\\\"/><path d=\\\"M18 7v1H2V7h16zm0 5v1H2v-1h16z\\\" opacity=\\\".6\\\"/><path d=\\\"M14 1v18a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V1a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1zm-2 1H8v4h4V2zm0 6H8v4h4V8zm0 6H8v4h4v-4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z\\\" opacity=\\\".6\\\"/><path d=\\\"M7 2h1v16H7V2zm5 0h1v16h-1V2z\\\" opacity=\\\".6\\\"/><path d=\\\"M1 6h18a1 1 0 0 1 1 1v6a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1zm1 2v4h4V8H2zm6 0v4h4V8H8zm6 0v4h4V8h-4z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2.5 1h15A1.5 1.5 0 0 1 19 2.5v15a1.5 1.5 0 0 1-1.5 1.5h-15A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1zM2 2v16h16V2H2z\\\" opacity=\\\".6\\\"/><path d=\\\"M7 2h1v16H7V2zm5 0h1v7h-1V2zm6 5v1H2V7h16zM8 12v1H2v-1h6z\\\" opacity=\\\".6\\\"/><path d=\\\"M7 7h12a1 1 0 0 1 1 1v11a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V8a1 1 0 0 1 1-1zm1 2v9h10V9H8z\\\"/></svg>\";","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableselection.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableselection\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { type EventInfo, first } from 'ckeditor5/src/utils';\n\nimport type {\n\tElement,\n\tDocumentFragment,\n\tSelection,\n\tDowncastWriter,\n\tViewElement,\n\tModelDeleteContentEvent\n} from 'ckeditor5/src/engine';\n\nimport type {\n\tViewDocumentInsertTextEvent,\n\tInsertTextEventData\n} from 'ckeditor5/src/typing';\n\nimport TableWalker from './tablewalker';\nimport TableUtils from './tableutils';\n\nimport { cropTableToDimensions, adjustLastRowIndex, adjustLastColumnIndex } from './utils/structure';\n\nimport '../theme/tableselection.css';\n\n/**\n * This plugin enables the advanced table cells, rows and columns selection.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n */\nexport default class TableSelection extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableSelection' {\n\t\treturn 'TableSelection';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableUtils, TableUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\n\t\tthis.listenTo<ModelDeleteContentEvent>(\n\t\t\tmodel,\n\t\t\t'deleteContent',\n\t\t\t( evt, args ) => this._handleDeleteContent( evt, args ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\n\t\tthis.listenTo<ViewDocumentInsertTextEvent>(\n\t\t\tview.document,\n\t\t\t'insertText',\n\t\t\t( evt, data ) => this._handleInsertTextEvent( evt, data ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\n\t\tthis._defineSelectionConverter();\n\t\tthis._enablePluginDisabling(); // sic!\n\t}\n\n\t/**\n\t * Returns the currently selected table cells or `null` if it is not a table cells selection.\n\t */\n\tpublic getSelectedTableCells(): Array<Element> | null {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst selection = this.editor.model.document.selection;\n\n\t\tconst selectedCells = tableUtils.getSelectedTableCells( selection );\n\n\t\tif ( selectedCells.length == 0 ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// This should never happen, but let's know if it ever happens.\n\t\t// @if CK_DEBUG //\t/* istanbul ignore next -- @preserve */\n\t\t// @if CK_DEBUG //\tif ( selectedCells.length != selection.rangeCount ) {\n\t\t// @if CK_DEBUG //\t\tconsole.warn( 'Mixed selection warning. The selection contains table cells and some other ranges.' );\n\t\t// @if CK_DEBUG //\t}\n\n\t\treturn selectedCells;\n\t}\n\n\t/**\n\t * Returns the selected table fragment as a document fragment.\n\t */\n\tpublic getSelectionAsFragment(): DocumentFragment | null {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst selectedCells = this.getSelectedTableCells();\n\n\t\tif ( !selectedCells ) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn this.editor.model.change( writer => {\n\t\t\tconst documentFragment = writer.createDocumentFragment();\n\n\t\t\tconst { first: firstColumn, last: lastColumn } = tableUtils.getColumnIndexes( selectedCells );\n\t\t\tconst { first: firstRow, last: lastRow } = tableUtils.getRowIndexes( selectedCells );\n\n\t\t\tconst sourceTable = selectedCells[ 0 ].findAncestor( 'table' )!;\n\n\t\t\tlet adjustedLastRow = lastRow;\n\t\t\tlet adjustedLastColumn = lastColumn;\n\n\t\t\t// If the selection is rectangular there could be a case of all cells in the last row/column spanned over\n\t\t\t// next row/column so the real lastRow/lastColumn should be updated.\n\t\t\tif ( tableUtils.isSelectionRectangular( selectedCells ) ) {\n\t\t\t\tconst dimensions = {\n\t\t\t\t\tfirstColumn,\n\t\t\t\t\tlastColumn,\n\t\t\t\t\tfirstRow,\n\t\t\t\t\tlastRow\n\t\t\t\t};\n\n\t\t\t\tadjustedLastRow = adjustLastRowIndex( sourceTable, dimensions );\n\t\t\t\tadjustedLastColumn = adjustLastColumnIndex( sourceTable, dimensions );\n\t\t\t}\n\n\t\t\tconst cropDimensions = {\n\t\t\t\tstartRow: firstRow,\n\t\t\t\tstartColumn: firstColumn,\n\t\t\t\tendRow: adjustedLastRow,\n\t\t\t\tendColumn: adjustedLastColumn\n\t\t\t};\n\n\t\t\tconst table = cropTableToDimensions( sourceTable, cropDimensions, writer );\n\n\t\t\twriter.insert( table, documentFragment, 0 );\n\n\t\t\treturn documentFragment;\n\t\t} );\n\t}\n\n\t/**\n\t * Sets the model selection based on given anchor and target cells (can be the same cell).\n\t * Takes care of setting the backward flag.\n\t *\n\t * ```ts\n\t * const modelRoot = editor.model.document.getRoot();\n\t * const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );\n\t * const lastCell = modelRoot.getNodeByPath( [ 0, 0, 1 ] );\n\t *\n\t * const tableSelection = editor.plugins.get( 'TableSelection' );\n\t * tableSelection.setCellSelection( firstCell, lastCell );\n\t * ```\n\t */\n\tpublic setCellSelection( anchorCell: Element, targetCell: Element ): void {\n\t\tconst cellsToSelect = this._getCellsToSelect( anchorCell, targetCell );\n\n\t\tthis.editor.model.change( writer => {\n\t\t\twriter.setSelection(\n\t\t\t\tcellsToSelect.cells.map( cell => writer.createRangeOn( cell ) ),\n\t\t\t\t{ backward: cellsToSelect.backward }\n\t\t\t);\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the focus cell from the current selection.\n\t */\n\tpublic getFocusCell(): Element | null {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst focusCellRange = [ ...selection.getRanges() ].pop()!;\n\t\tconst element = focusCellRange.getContainedElement();\n\n\t\tif ( element && element.is( 'element', 'tableCell' ) ) {\n\t\t\treturn element;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Returns the anchor cell from the current selection.\n\t */\n\tpublic getAnchorCell(): Element | null {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst anchorCellRange = first( selection.getRanges() )!;\n\t\tconst element = anchorCellRange.getContainedElement();\n\n\t\tif ( element && element.is( 'element', 'tableCell' ) ) {\n\t\t\treturn element;\n\t\t}\n\n\t\treturn null;\n\t}\n\n\t/**\n\t * Defines a selection converter which marks the selected cells with a specific class.\n\t *\n\t * The real DOM selection is put in the last cell. Since the order of ranges is dependent on whether the\n\t * selection is backward or not, the last cell will usually be close to the \"focus\" end of the selection\n\t * (a selection has anchor and focus).\n\t *\n\t * The real DOM selection is then hidden with CSS.\n\t */\n\tprivate _defineSelectionConverter() {\n\t\tconst editor = this.editor;\n\t\tconst highlighted: Set<ViewElement> = new Set();\n\n\t\teditor.conversion.for( 'editingDowncast' ).add( dispatcher => dispatcher.on( 'selection', ( evt, data, conversionApi ) => {\n\t\t\tconst viewWriter = conversionApi.writer;\n\n\t\t\tclearHighlightedTableCells( viewWriter );\n\n\t\t\tconst selectedCells = this.getSelectedTableCells();\n\n\t\t\tif ( !selectedCells ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tfor ( const tableCell of selectedCells ) {\n\t\t\t\tconst viewElement = conversionApi.mapper.toViewElement( tableCell )!;\n\n\t\t\t\tviewWriter.addClass( 'ck-editor__editable_selected', viewElement );\n\t\t\t\thighlighted.add( viewElement );\n\t\t\t}\n\n\t\t\tconst lastViewCell = conversionApi.mapper.toViewElement( selectedCells[ selectedCells.length - 1 ] );\n\t\t\tviewWriter.setSelection( lastViewCell, 0 );\n\t\t}, { priority: 'lowest' } ) );\n\n\t\tfunction clearHighlightedTableCells( viewWriter: DowncastWriter ) {\n\t\t\tfor ( const previouslyHighlighted of highlighted ) {\n\t\t\t\tviewWriter.removeClass( 'ck-editor__editable_selected', previouslyHighlighted );\n\t\t\t}\n\n\t\t\thighlighted.clear();\n\t\t}\n\t}\n\n\t/**\n\t * Creates a listener that reacts to changes in {@link #isEnabled} and, if the plugin was disabled,\n\t * it collapses the multi-cell selection to a regular selection placed inside a table cell.\n\t *\n\t * This listener helps features that disable the table selection plugin bring the selection\n\t * to a clear state they can work with (for instance, because they don't support multiple cell selection).\n\t */\n\tprivate _enablePluginDisabling() {\n\t\tconst editor = this.editor;\n\n\t\tthis.on( 'change:isEnabled', () => {\n\t\t\tif ( !this.isEnabled ) {\n\t\t\t\tconst selectedCells = this.getSelectedTableCells();\n\n\t\t\t\tif ( !selectedCells ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\tconst position = writer.createPositionAt( selectedCells[ 0 ], 0 );\n\t\t\t\t\tconst range = editor.model.schema.getNearestSelectionRange( position );\n\n\t\t\t\t\twriter.setSelection( range );\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Overrides the default `model.deleteContent()` behavior over a selected table fragment.\n\t *\n\t * @param args Delete content method arguments.\n\t */\n\tprivate _handleDeleteContent( event: EventInfo, args: Array<unknown> ) {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst selection = args[ 0 ] as Selection;\n\t\tconst options = args[ 1 ] as { direction?: string };\n\t\tconst model = this.editor.model;\n\t\tconst isBackward = !options || options.direction == 'backward';\n\t\tconst selectedTableCells = tableUtils.getSelectedTableCells( selection );\n\n\t\tif ( !selectedTableCells.length ) {\n\t\t\treturn;\n\t\t}\n\n\t\tevent.stop();\n\n\t\tmodel.change( writer => {\n\t\t\tconst tableCellToSelect = selectedTableCells[ isBackward ? selectedTableCells.length - 1 : 0 ];\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tfor ( const tableCell of selectedTableCells ) {\n\t\t\t\t\tmodel.deleteContent( writer.createSelection( tableCell, 'in' ) );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tconst rangeToSelect = model.schema.getNearestSelectionRange( writer.createPositionAt( tableCellToSelect, 0 ) );\n\n\t\t\t// Note: we ignore the case where rangeToSelect may be null because deleteContent() will always (unless someone broke it)\n\t\t\t// create an empty paragraph to accommodate the selection.\n\n\t\t\tif ( selection.is( 'documentSelection' ) ) {\n\t\t\t\twriter.setSelection( rangeToSelect );\n\t\t\t} else {\n\t\t\t\tselection.setTo( rangeToSelect );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * This handler makes it possible to remove the content of all selected cells by starting to type.\n\t * If you take a look at {@link #_defineSelectionConverter} you will find out that despite the multi-cell selection being set\n\t * in the model, the view selection is collapsed in the last cell (because most browsers are unable to render multi-cell selections;\n\t * yes, it's a hack).\n\t *\n\t * When multiple cells are selected in the model and the user starts to type, the\n\t * {@link module:engine/view/document~Document#event:insertText} event carries information provided by the\n\t * beforeinput DOM  event, that in turn only knows about this collapsed DOM selection in the last cell.\n\t *\n\t * As a result, the selected cells have no chance to be cleaned up. To fix this, this listener intercepts\n\t * the event and injects the custom view selection in the data that translates correctly to the actual state\n\t * of the multi-cell selection in the model.\n\t *\n\t * @param data Insert text event data.\n\t */\n\tprivate _handleInsertTextEvent( evt: EventInfo, data: InsertTextEventData ) {\n\t\tconst editor = this.editor;\n\t\tconst selectedCells = this.getSelectedTableCells();\n\n\t\tif ( !selectedCells ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst view = editor.editing.view;\n\t\tconst mapper = editor.editing.mapper;\n\t\tconst viewRanges = selectedCells.map( tableCell => view.createRangeOn( mapper.toViewElement( tableCell )! ) );\n\n\t\tdata.selection = view.createSelection( viewRanges );\n\t}\n\n\t/**\n\t * Returns an array of table cells that should be selected based on the\n\t * given anchor cell and target (focus) cell.\n\t *\n\t * The cells are returned in a reverse direction if the selection is backward.\n\t */\n\tprivate _getCellsToSelect( anchorCell: Element, targetCell: Element ) {\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst startLocation = tableUtils.getCellLocation( anchorCell );\n\t\tconst endLocation = tableUtils.getCellLocation( targetCell );\n\n\t\tconst startRow = Math.min( startLocation.row, endLocation.row );\n\t\tconst endRow = Math.max( startLocation.row, endLocation.row );\n\n\t\tconst startColumn = Math.min( startLocation.column, endLocation.column );\n\t\tconst endColumn = Math.max( startLocation.column, endLocation.column );\n\n\t\t// 2-dimensional array of the selected cells to ease flipping the order of cells for backward selections.\n\t\tconst selectionMap: Array<Array<Element>> = new Array( endRow - startRow + 1 ).fill( null ).map( () => [] );\n\n\t\tconst walkerOptions = {\n\t\t\tstartRow,\n\t\t\tendRow,\n\t\t\tstartColumn,\n\t\t\tendColumn\n\t\t};\n\n\t\tfor ( const { row, cell } of new TableWalker( anchorCell.findAncestor( 'table' )!, walkerOptions ) ) {\n\t\t\tselectionMap[ row - startRow ].push( cell );\n\t\t}\n\n\t\tconst flipVertically = endLocation.row < startLocation.row;\n\t\tconst flipHorizontally = endLocation.column < startLocation.column;\n\n\t\tif ( flipVertically ) {\n\t\t\tselectionMap.reverse();\n\t\t}\n\n\t\tif ( flipHorizontally ) {\n\t\t\tselectionMap.forEach( row => row.reverse() );\n\t\t}\n\n\t\treturn {\n\t\t\tcells: selectionMap.flat(),\n\t\t\tbackward: flipVertically || flipHorizontally\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableclipboard\n */\n\nimport type {\n\tClipboardEventData,\n\tViewDocumentClipboardOutputEvent,\n\tViewDocumentCopyEvent,\n\tViewDocumentCutEvent\n} from 'ckeditor5/src/clipboard';\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport type {\n\tDocumentFragment,\n\tDocumentSelection,\n\tDomEventData,\n\tElement,\n\tItem,\n\tModel,\n\tModelInsertContentEvent,\n\tPosition,\n\tSelection,\n\tWriter\n} from 'ckeditor5/src/engine';\n\nimport type { EventInfo } from 'ckeditor5/src/utils';\n\nimport TableSelection from './tableselection';\nimport TableWalker, { type TableSlot } from './tablewalker';\nimport TableUtils from './tableutils';\nimport {\n\tcropTableToDimensions,\n\tgetHorizontallyOverlappingCells,\n\tgetVerticallyOverlappingCells,\n\tremoveEmptyRowsColumns,\n\tsplitHorizontally,\n\tsplitVertically,\n\ttrimTableCellIfNeeded,\n\tadjustLastRowIndex,\n\tadjustLastColumnIndex\n} from './utils/structure';\n\n/**\n * This plugin adds support for copying/cutting/pasting fragments of tables.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n */\nexport default class TableClipboard extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableClipboard' {\n\t\treturn 'TableClipboard';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableSelection, TableUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\tthis.listenTo<ViewDocumentCopyEvent>( viewDocument, 'copy', ( evt, data ) => this._onCopyCut( evt, data ) );\n\t\tthis.listenTo<ViewDocumentCutEvent>( viewDocument, 'cut', ( evt, data ) => this._onCopyCut( evt, data ) );\n\t\tthis.listenTo<ModelInsertContentEvent>(\n\t\t\teditor.model,\n\t\t\t'insertContent',\n\t\t\t( evt, [ content, selectable ] ) => this._onInsertContent( evt, content, selectable ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\n\t\tthis.decorate( '_replaceTableSlotCell' );\n\t}\n\n\t/**\n\t * Copies table content to a clipboard on \"copy\" & \"cut\" events.\n\t *\n\t * @param evt An object containing information about the handled event.\n\t * @param data Clipboard event data.\n\t */\n\tprivate _onCopyCut( evt: EventInfo<'copy' | 'cut'>, data: DomEventData<ClipboardEvent> & ClipboardEventData ) {\n\t\tconst tableSelection = this.editor.plugins.get( TableSelection );\n\n\t\tif ( !tableSelection.getSelectedTableCells() ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( evt.name == 'cut' && this.editor.isReadOnly ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdata.preventDefault();\n\t\tevt.stop();\n\n\t\tconst dataController = this.editor.data;\n\t\tconst viewDocument = this.editor.editing.view.document;\n\n\t\tconst content = dataController.toView( tableSelection.getSelectionAsFragment()! );\n\n\t\tviewDocument.fire<ViewDocumentClipboardOutputEvent>( 'clipboardOutput', {\n\t\t\tdataTransfer: data.dataTransfer,\n\t\t\tcontent,\n\t\t\tmethod: evt.name\n\t\t} );\n\t}\n\n\t/**\n\t * Overrides default {@link module:engine/model/model~Model#insertContent `model.insertContent()`} method to handle pasting table inside\n\t * selected table fragment.\n\t *\n\t * Depending on selected table fragment:\n\t * - If a selected table fragment is smaller than paste table it will crop pasted table to match dimensions.\n\t * - If dimensions are equal it will replace selected table fragment with a pasted table contents.\n\t *\n\t * @param content The content to insert.\n\t * @param selectable The selection into which the content should be inserted.\n\t * If not provided the current model document selection will be used.\n\t */\n\tprivate _onInsertContent( evt: EventInfo, content: DocumentFragment | Item, selectable: Selection | DocumentSelection | undefined ) {\n\t\tif ( selectable && !selectable.is( 'documentSelection' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\n\t\t// We might need to crop table before inserting so reference might change.\n\t\tlet pastedTable = this.getTableIfOnlyTableInContent( content, model )!;\n\n\t\tif ( !pastedTable ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst selectedTableCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\n\t\tif ( !selectedTableCells.length ) {\n\t\t\tremoveEmptyRowsColumns( pastedTable, tableUtils );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Override default model.insertContent() handling at this point.\n\t\tevt.stop();\n\n\t\tmodel.change( writer => {\n\t\t\tconst pastedDimensions = {\n\t\t\t\twidth: tableUtils.getColumns( pastedTable ),\n\t\t\t\theight: tableUtils.getRows( pastedTable )\n\t\t\t};\n\n\t\t\t// Prepare the table for pasting.\n\t\t\tconst selection = prepareTableForPasting( selectedTableCells, pastedDimensions, writer, tableUtils );\n\n\t\t\t// Beyond this point we operate on a fixed content table with rectangular selection and proper last row/column values.\n\n\t\t\tconst selectionHeight = selection.lastRow - selection.firstRow + 1;\n\t\t\tconst selectionWidth = selection.lastColumn - selection.firstColumn + 1;\n\n\t\t\t// Crop pasted table if:\n\t\t\t// - Pasted table dimensions exceeds selection area.\n\t\t\t// - Pasted table has broken layout (ie some cells sticks out by the table dimensions established by the first and last row).\n\t\t\t//\n\t\t\t// Note: The table dimensions are established by the width of the first row and the total number of rows.\n\t\t\t// It is possible to programmatically create a table that has rows which would have cells anchored beyond first row width but\n\t\t\t// such table will not be created by other editing solutions.\n\t\t\tconst cropDimensions = {\n\t\t\t\tstartRow: 0,\n\t\t\t\tstartColumn: 0,\n\t\t\t\tendRow: Math.min( selectionHeight, pastedDimensions.height ) - 1,\n\t\t\t\tendColumn: Math.min( selectionWidth, pastedDimensions.width ) - 1\n\t\t\t};\n\n\t\t\tpastedTable = cropTableToDimensions( pastedTable, cropDimensions, writer );\n\n\t\t\t// Content table to which we insert a pasted table.\n\t\t\tconst selectedTable = selectedTableCells[ 0 ].findAncestor( 'table' )!;\n\n\t\t\tconst cellsToSelect = this._replaceSelectedCellsWithPasted( pastedTable, pastedDimensions, selectedTable, selection, writer );\n\n\t\t\tif ( this.editor.plugins.get( 'TableSelection' ).isEnabled ) {\n\t\t\t\t// Selection ranges must be sorted because the first and last selection ranges are considered\n\t\t\t\t// as anchor/focus cell ranges for multi-cell selection.\n\t\t\t\tconst selectionRanges = tableUtils.sortRanges( cellsToSelect.map( cell => writer.createRangeOn( cell ) ) );\n\n\t\t\t\twriter.setSelection( selectionRanges );\n\t\t\t} else {\n\t\t\t\t// Set selection inside first cell if multi-cell selection is disabled.\n\t\t\t\twriter.setSelection( cellsToSelect[ 0 ], 0 );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Replaces the part of selectedTable with pastedTable.\n\t */\n\tprivate _replaceSelectedCellsWithPasted(\n\t\tpastedTable: Element,\n\t\tpastedDimensions: Record<string, number>,\n\t\tselectedTable: Element,\n\t\tselection: Record<string, number>,\n\t\twriter: Writer\n\t) {\n\t\tconst { width: pastedWidth, height: pastedHeight } = pastedDimensions;\n\n\t\t// Holds two-dimensional array that is addressed by [ row ][ column ] that stores cells anchored at given location.\n\t\tconst pastedTableLocationMap = createLocationMap( pastedTable, pastedWidth, pastedHeight );\n\n\t\tconst selectedTableMap = [ ...new TableWalker( selectedTable, {\n\t\t\tstartRow: selection.firstRow,\n\t\t\tendRow: selection.lastRow,\n\t\t\tstartColumn: selection.firstColumn,\n\t\t\tendColumn: selection.lastColumn,\n\t\t\tincludeAllSlots: true\n\t\t} ) ];\n\n\t\t// Selection must be set to pasted cells (some might be removed or new created).\n\t\tconst cellsToSelect: Array<Element> = [];\n\n\t\t// Store next cell insert position.\n\t\tlet insertPosition: Position;\n\n\t\t// Content table replace cells algorithm iterates over a selected table fragment and:\n\t\t//\n\t\t// - Removes existing table cells at current slot (location).\n\t\t// - Inserts cell from a pasted table for a matched slots.\n\t\t//\n\t\t// This ensures proper table geometry after the paste\n\t\tfor ( const tableSlot of selectedTableMap ) {\n\t\t\tconst { row, column } = tableSlot;\n\n\t\t\t// Save the insert position for current row start.\n\t\t\tif ( column === selection.firstColumn ) {\n\t\t\t\tinsertPosition = tableSlot.getPositionBefore();\n\t\t\t}\n\n\t\t\t// Map current table slot location to an pasted table slot location.\n\t\t\tconst pastedRow = row - selection.firstRow;\n\t\t\tconst pastedColumn = column - selection.firstColumn;\n\t\t\tconst pastedCell = pastedTableLocationMap[ pastedRow % pastedHeight ][ pastedColumn % pastedWidth ];\n\n\t\t\t// Clone cell to insert (to duplicate its attributes and children).\n\t\t\t// Cloning is required to support repeating pasted table content when inserting to a bigger selection.\n\t\t\tconst cellToInsert = pastedCell ? writer.cloneElement( pastedCell ) : null;\n\n\t\t\t// Replace the cell from the current slot with new table cell.\n\t\t\tconst newTableCell = this._replaceTableSlotCell( tableSlot, cellToInsert, insertPosition!, writer );\n\n\t\t\t// The cell was only removed.\n\t\t\tif ( !newTableCell ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Trim the cell if it's row/col-spans would exceed selection area.\n\t\t\ttrimTableCellIfNeeded( newTableCell, row, column, selection.lastRow, selection.lastColumn, writer );\n\n\t\t\tcellsToSelect.push( newTableCell );\n\n\t\t\tinsertPosition = writer.createPositionAfter( newTableCell );\n\t\t}\n\n\t\t// If there are any headings, all the cells that overlap from heading must be splitted.\n\t\tconst headingRows = parseInt( selectedTable.getAttribute( 'headingRows' ) as string || '0' );\n\t\tconst headingColumns = parseInt( selectedTable.getAttribute( 'headingColumns' ) as string || '0' );\n\n\t\tconst areHeadingRowsIntersectingSelection = selection.firstRow < headingRows && headingRows <= selection.lastRow;\n\t\tconst areHeadingColumnsIntersectingSelection = selection.firstColumn < headingColumns && headingColumns <= selection.lastColumn;\n\n\t\tif ( areHeadingRowsIntersectingSelection ) {\n\t\t\tconst columnsLimit = { first: selection.firstColumn, last: selection.lastColumn };\n\t\t\tconst newCells = doHorizontalSplit( selectedTable, headingRows, columnsLimit, writer, selection.firstRow ) as Array<Element>;\n\n\t\t\tcellsToSelect.push( ...newCells );\n\t\t}\n\n\t\tif ( areHeadingColumnsIntersectingSelection ) {\n\t\t\tconst rowsLimit = { first: selection.firstRow, last: selection.lastRow };\n\t\t\tconst newCells = doVerticalSplit( selectedTable, headingColumns, rowsLimit, writer ) as Array<Element>;\n\n\t\t\tcellsToSelect.push( ...newCells );\n\t\t}\n\n\t\treturn cellsToSelect;\n\t}\n\n\t/**\n\t * Replaces a single table slot.\n\t *\n\t * @returns Inserted table cell or null if slot should remain empty.\n\t * @private\n\t */\n\tpublic _replaceTableSlotCell(\n\t\ttableSlot: TableSlot,\n\t\tcellToInsert: Element | null,\n\t\tinsertPosition: Position,\n\t\twriter: Writer\n\t): Element | null {\n\t\tconst { cell, isAnchor } = tableSlot;\n\n\t\t// If the slot is occupied by a cell in a selected table - remove it.\n\t\t// The slot of this cell will be either:\n\t\t// - Replaced by a pasted table cell.\n\t\t// - Spanned by a previously pasted table cell.\n\t\tif ( isAnchor ) {\n\t\t\twriter.remove( cell );\n\t\t}\n\n\t\t// There is no cell to insert (might be spanned by other cell in a pasted table) - advance to the next content table slot.\n\t\tif ( !cellToInsert ) {\n\t\t\treturn null;\n\t\t}\n\n\t\twriter.insert( cellToInsert, insertPosition );\n\n\t\treturn cellToInsert;\n\t}\n\n\t/**\n\t * Extracts the table for pasting into a table.\n\t *\n\t * @param content The content to insert.\n\t * @param model The editor model.\n\t */\n\tpublic getTableIfOnlyTableInContent( content: DocumentFragment | Item, model: Model ): Element | null {\n\t\tif ( !content.is( 'documentFragment' ) && !content.is( 'element' ) ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// Table passed directly.\n\t\tif ( content.is( 'element', 'table' ) ) {\n\t\t\treturn content;\n\t\t}\n\n\t\t// We do not support mixed content when pasting table into table.\n\t\t// See: https://github.com/ckeditor/ckeditor5/issues/6817.\n\t\tif ( content.childCount == 1 && content.getChild( 0 )!.is( 'element', 'table' ) ) {\n\t\t\treturn content.getChild( 0 ) as Element;\n\t\t}\n\n\t\t// If there are only whitespaces around a table then use that table for pasting.\n\n\t\tconst contentRange = model.createRangeIn( content );\n\n\t\tfor ( const element of contentRange.getItems() ) {\n\t\t\tif ( element.is( 'element', 'table' ) ) {\n\t\t\t\t// Stop checking if there is some content before table.\n\t\t\t\tconst rangeBefore = model.createRange( contentRange.start, model.createPositionBefore( element ) );\n\n\t\t\t\tif ( model.hasContent( rangeBefore, { ignoreWhitespaces: true } ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\t// Stop checking if there is some content after table.\n\t\t\t\tconst rangeAfter = model.createRange( model.createPositionAfter( element ), contentRange.end );\n\n\t\t\t\tif ( model.hasContent( rangeAfter, { ignoreWhitespaces: true } ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\t// There wasn't any content neither before nor after.\n\t\t\t\treturn element;\n\t\t\t}\n\t\t}\n\n\t\treturn null;\n\t}\n}\n\n/**\n * Prepares a table for pasting and returns adjusted selection dimensions.\n */\nfunction prepareTableForPasting(\n\tselectedTableCells: Array<Element>,\n\tpastedDimensions: {\n\t\theight: number;\n\t\twidth: number;\n\t},\n\twriter: Writer,\n\ttableUtils: TableUtils\n) {\n\tconst selectedTable = selectedTableCells[ 0 ].findAncestor( 'table' )!;\n\n\tconst columnIndexes = tableUtils.getColumnIndexes( selectedTableCells );\n\tconst rowIndexes = tableUtils.getRowIndexes( selectedTableCells );\n\n\tconst selection = {\n\t\tfirstColumn: columnIndexes.first,\n\t\tlastColumn: columnIndexes.last,\n\t\tfirstRow: rowIndexes.first,\n\t\tlastRow: rowIndexes.last\n\t};\n\n\t// Single cell selected - expand selection to pasted table dimensions.\n\tconst shouldExpandSelection = selectedTableCells.length === 1;\n\n\tif ( shouldExpandSelection ) {\n\t\tselection.lastRow += pastedDimensions.height - 1;\n\t\tselection.lastColumn += pastedDimensions.width - 1;\n\n\t\texpandTableSize( selectedTable, selection.lastRow + 1, selection.lastColumn + 1, tableUtils );\n\t}\n\n\t// In case of expanding selection we do not reset the selection so in this case we will always try to fix selection\n\t// like in the case of a non-rectangular area. This might be fixed by re-setting selected cells array but this shortcut is safe.\n\tif ( shouldExpandSelection || !tableUtils.isSelectionRectangular( selectedTableCells ) ) {\n\t\t// For a non-rectangular selection (ie in which some cells sticks out from a virtual selection rectangle) we need to create\n\t\t// a table layout that has a rectangular selection. This will split cells so the selection become rectangular.\n\t\t// Beyond this point we will operate on fixed content table.\n\t\tsplitCellsToRectangularSelection( selectedTable, selection, writer );\n\t}\n\t// However a selected table fragment might be invalid if examined alone. Ie such table fragment:\n\t//\n\t//    +---+---+---+---+\n\t//  0 | a | b | c | d |\n\t//    +   +   +---+---+\n\t//  1 |   | e | f | g |\n\t//    +   +---+   +---+\n\t//  2 |   | h |   | i | <- last row, each cell has rowspan = 2,\n\t//    +   +   +   +   +    so we need to return 3, not 2\n\t//  3 |   |   |   |   |\n\t//    +---+---+---+---+\n\t//\n\t// is invalid as the cells \"h\" and \"i\" have rowspans.\n\t// This case needs only adjusting the selection dimension as the rest of the algorithm operates on empty slots also.\n\telse {\n\t\tselection.lastRow = adjustLastRowIndex( selectedTable, selection );\n\t\tselection.lastColumn = adjustLastColumnIndex( selectedTable, selection );\n\t}\n\n\treturn selection;\n}\n\n/**\n * Expand table (in place) to expected size.\n */\nfunction expandTableSize( table: Element, expectedHeight: number, expectedWidth: number, tableUtils: TableUtils ) {\n\tconst tableWidth = tableUtils.getColumns( table );\n\tconst tableHeight = tableUtils.getRows( table );\n\n\tif ( expectedWidth > tableWidth ) {\n\t\ttableUtils.insertColumns( table, {\n\t\t\tat: tableWidth,\n\t\t\tcolumns: expectedWidth - tableWidth\n\t\t} );\n\t}\n\n\tif ( expectedHeight > tableHeight ) {\n\t\ttableUtils.insertRows( table, {\n\t\t\tat: tableHeight,\n\t\t\trows: expectedHeight - tableHeight\n\t\t} );\n\t}\n}\n\n/**\n * Returns two-dimensional array that is addressed by [ row ][ column ] that stores cells anchored at given location.\n *\n * At given row & column location it might be one of:\n *\n * * cell - cell from pasted table anchored at this location.\n * * null - if no cell is anchored at this location.\n *\n * For instance, from a table below:\n *\n *   +----+----+----+----+\n *   | 00 | 01 | 02 | 03 |\n *   +    +----+----+----+\n *   |    | 11      | 13 |\n *   +----+         +----+\n *   | 20 |         | 23 |\n *   +----+----+----+----+\n *\n * The method will return an array (numbers represents cell element):\n *\n * ```ts\n * const map = [\n *   [ '00', '01', '02', '03' ],\n *   [ null, '11', null, '13' ],\n *   [ '20', null, null, '23' ]\n * ]\n * ```\n *\n * This allows for a quick access to table at give row & column. For instance to access table cell \"13\" from pasted table call:\n *\n * ```ts\n * const cell = map[ 1 ][ 3 ]\n * ```\n */\nfunction createLocationMap( table: Element, width: number, height: number ) {\n\t// Create height x width (row x column) two-dimensional table to store cells.\n\tconst map = new Array( height ).fill( null )\n\t\t.map( () => new Array( width ).fill( null ) );\n\n\tfor ( const { column, row, cell } of new TableWalker( table ) ) {\n\t\tmap[ row ][ column ] = cell;\n\t}\n\n\treturn map;\n}\n\n/**\n * Make selected cells rectangular by splitting the cells that stand out from a rectangular selection.\n *\n * In the table below a selection is shown with \"::\" and slots with anchor cells are named.\n *\n * +----+----+----+----+----+                    +----+----+----+----+----+\n * | 00 | 01 | 02 | 03      |                    | 00 | 01 | 02 | 03      |\n * +    +----+    +----+----+                    |    ::::::::::::::::----+\n * |    | 11 |    | 13 | 14 |                    |    ::11 |    | 13:: 14 |    <- first row\n * +----+----+    +    +----+                    +----::---|    |   ::----+\n * | 20 | 21 |    |    | 24 |   select cells:    | 20 ::21 |    |   :: 24 |\n * +----+----+    +----+----+     11 -> 33       +----::---|    |---::----+\n * | 30      |    | 33 | 34 |                    | 30 ::   |    | 33:: 34 |    <- last row\n * +         +    +----+    +                    |    ::::::::::::::::    +\n * |         |    | 43 |    |                    |         |    | 43 |    |\n * +----+----+----+----+----+                    +----+----+----+----+----+\n *                                                      ^          ^\n *                                                     first & last columns\n *\n * Will update table to:\n *\n *                       +----+----+----+----+----+\n *                       | 00 | 01 | 02 | 03      |\n *                       +    +----+----+----+----+\n *                       |    | 11 |    | 13 | 14 |\n *                       +----+----+    +    +----+\n *                       | 20 | 21 |    |    | 24 |\n *                       +----+----+    +----+----+\n *                       | 30 |    |    | 33 | 34 |\n *                       +    +----+----+----+    +\n *                       |    |    |    | 43 |    |\n *                       +----+----+----+----+----+\n *\n * In th example above:\n * - Cell \"02\" which have `rowspan = 4` must be trimmed at first and at after last row.\n * - Cell \"03\" which have `rowspan = 2` and `colspan = 2` must be trimmed at first column and after last row.\n * - Cells \"00\", \"03\" & \"30\" which cannot be cut by this algorithm as they are outside the trimmed area.\n * - Cell \"13\" cannot be cut as it is inside the trimmed area.\n */\nfunction splitCellsToRectangularSelection( table: Element, dimensions: Record<string, number>, writer: Writer ) {\n\tconst { firstRow, lastRow, firstColumn, lastColumn } = dimensions;\n\n\tconst rowIndexes = { first: firstRow, last: lastRow };\n\tconst columnIndexes = { first: firstColumn, last: lastColumn };\n\n\t// 1. Split cells vertically in two steps as first step might create cells that needs to split again.\n\tdoVerticalSplit( table, firstColumn, rowIndexes, writer );\n\tdoVerticalSplit( table, lastColumn + 1, rowIndexes, writer );\n\n\t// 2. Split cells horizontally in two steps as first step might create cells that needs to split again.\n\tdoHorizontalSplit( table, firstRow, columnIndexes, writer );\n\tdoHorizontalSplit( table, lastRow + 1, columnIndexes, writer, firstRow );\n}\n\nfunction doHorizontalSplit( table: Element, splitRow: number, limitColumns: Record<string, number>, writer: Writer, startRow: number = 0 ) {\n\t// If selection starts at first row then no split is needed.\n\tif ( splitRow < 1 ) {\n\t\treturn;\n\t}\n\n\tconst overlappingCells = getVerticallyOverlappingCells( table, splitRow, startRow );\n\n\t// Filter out cells that are not touching insides of the rectangular selection.\n\tconst cellsToSplit = overlappingCells.filter( ( { column, cellWidth } ) => isAffectedBySelection( column, cellWidth, limitColumns ) );\n\n\treturn cellsToSplit.map( ( { cell } ) => splitHorizontally( cell, splitRow, writer ) );\n}\n\nfunction doVerticalSplit( table: Element, splitColumn: number, limitRows: Record<string, number>, writer: Writer ) {\n\t// If selection starts at first column then no split is needed.\n\tif ( splitColumn < 1 ) {\n\t\treturn;\n\t}\n\n\tconst overlappingCells = getHorizontallyOverlappingCells( table, splitColumn );\n\n\t// Filter out cells that are not touching insides of the rectangular selection.\n\tconst cellsToSplit = overlappingCells.filter( ( { row, cellHeight } ) => isAffectedBySelection( row, cellHeight, limitRows ) );\n\n\treturn cellsToSplit.map( ( { cell, column } ) => splitVertically( cell, column, splitColumn, writer ) );\n}\n\n/**\n * Checks if cell at given row (column) is affected by a rectangular selection defined by first/last column (row).\n *\n * The same check is used for row as for column.\n */\nfunction isAffectedBySelection( index: number, span: number, limit: Record<string, number> ) {\n\tconst endIndex = index + span - 1;\n\tconst { first, last } = limit;\n\n\tconst isInsideSelection = index >= first && index <= last;\n\tconst overlapsSelectionFromOutside = index < first && endIndex >= first;\n\n\treturn isInsideSelection || overlapsSelectionFromOutside;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablekeyboard\n */\n\nimport TableSelection from './tableselection';\nimport TableWalker from './tablewalker';\nimport TableUtils from './tableutils';\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport {\n\tgetLocalizedArrowKeyCodeDirection,\n\ttype EventInfo,\n\ttype ArrowKeyCodeDirection,\n\ttype KeystrokeInfo\n} from 'ckeditor5/src/utils';\n\nimport type {\n\tBubblingEventInfo,\n\tDocumentSelection,\n\tDomEventData,\n\tElement,\n\tSelection,\n\tViewDocumentArrowKeyEvent,\n\tViewDocumentTabEvent\n} from 'ckeditor5/src/engine';\n\n/**\n * This plugin enables keyboard navigation for tables.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n */\nexport default class TableKeyboard extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableKeyboard' {\n\t\treturn 'TableKeyboard';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableSelection, TableUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst view = this.editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\tthis.listenTo<ViewDocumentArrowKeyEvent>(\n\t\t\tviewDocument,\n\t\t\t'arrowKey',\n\t\t\t( ...args ) => this._onArrowKey( ...args ),\n\t\t\t{ context: 'table' }\n\t\t);\n\n\t\tthis.listenTo<ViewDocumentTabEvent>(\n\t\t\tviewDocument,\n\t\t\t'tab',\n\t\t\t( ...args ) => this._handleTabOnSelectedTable( ...args ),\n\t\t\t{ context: 'figure' }\n\t\t);\n\n\t\tthis.listenTo<ViewDocumentTabEvent>(\n\t\t\tviewDocument,\n\t\t\t'tab',\n\t\t\t( ...args ) => this._handleTab( ...args ),\n\t\t\t{ context: [ 'th', 'td' ] }\n\t\t);\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:tab tab} events for the <kbd>Tab</kbd> key executed\n\t * when the table widget is selected.\n\t */\n\tprivate _handleTabOnSelectedTable( bubblingEventInfo: BubblingEventInfo, domEventData: DomEventData ) {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tif ( !selectedElement || !selectedElement.is( 'element', 'table' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdomEventData.preventDefault();\n\t\tdomEventData.stopPropagation();\n\t\tbubblingEventInfo.stop();\n\n\t\teditor.model.change( writer => {\n\t\t\twriter.setSelection( writer.createRangeIn( ( selectedElement.getChild( 0 ) as Element ).getChild( 0 ) as Element ) );\n\t\t} );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:tab tab} events for the <kbd>Tab</kbd> key executed\n\t * inside table cells.\n\t */\n\tprivate _handleTab( bubblingEventInfo: BubblingEventInfo, domEventData: DomEventData & KeystrokeInfo ) {\n\t\tconst editor = this.editor;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst tableSelection: TableSelection = this.editor.plugins.get( 'TableSelection' );\n\n\t\tconst selection = editor.model.document.selection;\n\t\tconst isForward = !domEventData.shiftKey;\n\n\t\tlet tableCell: Element | null = tableUtils.getTableCellsContainingSelection( selection )[ 0 ];\n\n\t\tif ( !tableCell ) {\n\t\t\ttableCell = tableSelection.getFocusCell();\n\t\t}\n\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdomEventData.preventDefault();\n\t\tdomEventData.stopPropagation();\n\t\tbubblingEventInfo.stop();\n\n\t\tconst tableRow = tableCell.parent as Element;\n\t\tconst table = tableRow.parent as Element;\n\n\t\tconst currentRowIndex = table.getChildIndex( tableRow )!;\n\t\tconst currentCellIndex = tableRow.getChildIndex( tableCell )!;\n\n\t\tconst isFirstCellInRow = currentCellIndex === 0;\n\n\t\tif ( !isForward && isFirstCellInRow && currentRowIndex === 0 ) {\n\t\t\t// Set the selection over the whole table if the selection was in the first table cell.\n\t\t\teditor.model.change( writer => {\n\t\t\t\twriter.setSelection( writer.createRangeOn( table ) );\n\t\t\t} );\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst isLastCellInRow = currentCellIndex === tableRow.childCount - 1;\n\t\tconst isLastRow = currentRowIndex === tableUtils.getRows( table ) - 1;\n\n\t\tif ( isForward && isLastRow && isLastCellInRow ) {\n\t\t\teditor.execute( 'insertTableRowBelow' );\n\n\t\t\t// Check if the command actually added a row. If `insertTableRowBelow` execution didn't add a row (because it was disabled\n\t\t\t// or it got overwritten) set the selection over the whole table to mirror the first cell case.\n\t\t\tif ( currentRowIndex === tableUtils.getRows( table ) - 1 ) {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\twriter.setSelection( writer.createRangeOn( table ) );\n\t\t\t\t} );\n\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\tlet cellToFocus: Element;\n\n\t\t// Move to the first cell in the next row.\n\t\tif ( isForward && isLastCellInRow ) {\n\t\t\tconst nextRow = table.getChild( currentRowIndex + 1 ) as Element;\n\n\t\t\tcellToFocus = nextRow.getChild( 0 ) as Element;\n\t\t}\n\t\t// Move to the last cell in the previous row.\n\t\telse if ( !isForward && isFirstCellInRow ) {\n\t\t\tconst previousRow = table.getChild( currentRowIndex - 1 ) as Element;\n\n\t\t\tcellToFocus = previousRow.getChild( previousRow.childCount - 1 ) as Element;\n\t\t}\n\t\t// Move to the next/previous cell.\n\t\telse {\n\t\t\tcellToFocus = tableRow.getChild( currentCellIndex + ( isForward ? 1 : -1 ) ) as Element;\n\t\t}\n\n\t\teditor.model.change( writer => {\n\t\t\twriter.setSelection( writer.createRangeIn( cellToFocus ) );\n\t\t} );\n\t}\n\n\t/**\n\t * Handles {@link module:engine/view/document~Document#event:keydown keydown} events.\n\t */\n\tprivate _onArrowKey( eventInfo: EventInfo, domEventData: DomEventData & KeystrokeInfo ) {\n\t\tconst editor = this.editor;\n\t\tconst keyCode = domEventData.keyCode;\n\n\t\tconst direction = getLocalizedArrowKeyCodeDirection( keyCode, editor.locale.contentLanguageDirection )!;\n\t\tconst wasHandled = this._handleArrowKeys( direction, domEventData.shiftKey );\n\n\t\tif ( wasHandled ) {\n\t\t\tdomEventData.preventDefault();\n\t\t\tdomEventData.stopPropagation();\n\t\t\teventInfo.stop();\n\t\t}\n\t}\n\n\t/**\n\t * Handles arrow keys to move the selection around the table.\n\t *\n\t * @param direction The direction of the arrow key.\n\t * @param expandSelection If the current selection should be expanded.\n\t * @returns Returns `true` if key was handled.\n\t */\n\tprivate _handleArrowKeys( direction: ArrowKeyCodeDirection, expandSelection: boolean ) {\n\t\tconst tableUtils = this.editor.plugins.get( TableUtils );\n\t\tconst tableSelection: TableSelection = this.editor.plugins.get( 'TableSelection' );\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst isForward = [ 'right', 'down' ].includes( direction );\n\n\t\t// In case one or more table cells are selected (from outside),\n\t\t// move the selection to a cell adjacent to the selected table fragment.\n\t\tconst selectedCells = tableUtils.getSelectedTableCells( selection );\n\n\t\tif ( selectedCells.length ) {\n\t\t\tlet focusCell;\n\n\t\t\tif ( expandSelection ) {\n\t\t\t\tfocusCell = tableSelection.getFocusCell();\n\t\t\t} else {\n\t\t\t\tfocusCell = isForward ? selectedCells[ selectedCells.length - 1 ] : selectedCells[ 0 ];\n\t\t\t}\n\n\t\t\tthis._navigateFromCellInDirection( focusCell!, direction, expandSelection );\n\n\t\t\treturn true;\n\t\t}\n\n\t\t// Abort if we're not in a table cell.\n\t\tconst tableCell = selection.focus!.findAncestor( 'tableCell' );\n\n\t\t/* istanbul ignore if: paranoid check -- @preserve */\n\t\tif ( !tableCell ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// When the selection is not collapsed.\n\t\tif ( !selection.isCollapsed ) {\n\t\t\tif ( expandSelection ) {\n\t\t\t\t// Navigation is in the opposite direction than the selection direction so this is shrinking of the selection.\n\t\t\t\t// Selection for sure will not approach cell edge.\n\t\t\t\t//\n\t\t\t\t// With a special case when all cell content is selected - then selection should expand to the other cell.\n\t\t\t\t// Note: When the entire cell gets selected using CTRL+A, the selection is always forward.\n\t\t\t\tif ( selection.isBackward == isForward && !selection.containsEntireContent( tableCell ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\t\t\t// It will collapse for non-object selected so it's not going to move to other cell.\n\t\t\t\tif ( !selectedElement || !model.schema.isObject( selectedElement ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Let's check if the selection is at the beginning/end of the cell.\n\t\tif ( this._isSelectionAtCellEdge( selection, tableCell, isForward ) ) {\n\t\t\tthis._navigateFromCellInDirection( tableCell, direction, expandSelection );\n\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t}\n\n\t/**\n\t * Returns `true` if the selection is at the boundary of a table cell according to the navigation direction.\n\t *\n\t * @param selection The current selection.\n\t * @param tableCell The current table cell element.\n\t * @param isForward The expected navigation direction.\n\t */\n\tprivate _isSelectionAtCellEdge( selection: Selection | DocumentSelection, tableCell: Element, isForward: boolean ) {\n\t\tconst model = this.editor.model;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst focus = isForward ? selection.getLastPosition()! : selection.getFirstPosition()!;\n\n\t\t// If the current limit element is not table cell we are for sure not at the cell edge.\n\t\t// Also `modifySelection` will not let us out of it.\n\t\tif ( !schema.getLimitElement( focus ).is( 'element', 'tableCell' ) ) {\n\t\t\tconst boundaryPosition = model.createPositionAt( tableCell, isForward ? 'end' : 0 );\n\n\t\t\treturn boundaryPosition.isTouching( focus );\n\t\t}\n\n\t\tconst probe = model.createSelection( focus );\n\n\t\tmodel.modifySelection( probe, { direction: isForward ? 'forward' : 'backward' } );\n\n\t\t// If there was no change in the focus position, then it's not possible to move the selection there.\n\t\treturn focus.isEqual( probe.focus! );\n\t}\n\n\t/**\n\t * Moves the selection from the given table cell in the specified direction.\n\t *\n\t * @param focusCell The table cell that is current multi-cell selection focus.\n\t * @param direction Direction in which selection should move.\n\t * @param expandSelection If the current selection should be expanded. Default value is false.\n\t */\n\tprotected _navigateFromCellInDirection( focusCell: Element, direction: ArrowKeyCodeDirection, expandSelection = false ): void {\n\t\tconst model = this.editor.model;\n\n\t\tconst table = focusCell.findAncestor( 'table' )!;\n\t\tconst tableMap = [ ...new TableWalker( table, { includeAllSlots: true } ) ];\n\t\tconst { row: lastRow, column: lastColumn } = tableMap[ tableMap.length - 1 ];\n\n\t\tconst currentCellInfo = tableMap.find( ( { cell } ) => cell == focusCell )!;\n\t\tlet { row, column } = currentCellInfo;\n\n\t\tswitch ( direction ) {\n\t\t\tcase 'left':\n\t\t\t\tcolumn--;\n\t\t\t\tbreak;\n\n\t\t\tcase 'up':\n\t\t\t\trow--;\n\t\t\t\tbreak;\n\n\t\t\tcase 'right':\n\t\t\t\tcolumn += currentCellInfo.cellWidth;\n\t\t\t\tbreak;\n\n\t\t\tcase 'down':\n\t\t\t\trow += currentCellInfo.cellHeight;\n\t\t\t\tbreak;\n\t\t}\n\n\t\tconst isOutsideVertically = row < 0 || row > lastRow;\n\t\tconst isBeforeFirstCell = column < 0 && row <= 0;\n\t\tconst isAfterLastCell = column > lastColumn && row >= lastRow;\n\n\t\t// Note that if the table cell at the end of a row is row-spanned then isAfterLastCell will never be true.\n\t\t// However, we don't know if user was navigating on the last row or not, so let's stay in the table.\n\n\t\tif ( isOutsideVertically || isBeforeFirstCell || isAfterLastCell ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( writer.createRangeOn( table ) );\n\t\t\t} );\n\n\t\t\treturn;\n\t\t}\n\n\t\tif ( column < 0 ) {\n\t\t\tcolumn = expandSelection ? 0 : lastColumn;\n\t\t\trow--;\n\t\t} else if ( column > lastColumn ) {\n\t\t\tcolumn = expandSelection ? lastColumn : 0;\n\t\t\trow++;\n\t\t}\n\n\t\tconst cellToSelect = tableMap.find( cellInfo => cellInfo.row == row && cellInfo.column == column )!.cell;\n\t\tconst isForward = [ 'right', 'down' ].includes( direction );\n\t\tconst tableSelection: TableSelection = this.editor.plugins.get( 'TableSelection' );\n\n\t\tif ( expandSelection && tableSelection.isEnabled ) {\n\t\t\tconst anchorCell = tableSelection.getAnchorCell() || focusCell;\n\n\t\t\ttableSelection.setCellSelection( anchorCell, cellToSelect );\n\t\t} else {\n\t\t\tconst positionToSelect = model.createPositionAt( cellToSelect, isForward ? 0 : 'end' );\n\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( positionToSelect );\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablemouse/mouseeventsobserver\n */\n\nimport { DomEventObserver, type DomEventData, type View } from 'ckeditor5/src/engine';\n\n/**\n * The mouse selection event observer.\n *\n * It registers listeners for the following DOM events:\n *\n * - `'mousemove'`\n * - `'mouseleave'`\n *\n * Note that this observer is disabled by default. To enable this observer, it needs to be added to\n * {@link module:engine/view/view~View} using the {@link module:engine/view/view~View#addObserver} method.\n *\n * The observer is registered by the {@link module:table/tableselection~TableSelection} plugin.\n */\nexport default class MouseEventsObserver extends DomEventObserver<'mousemove' | 'mouseleave'> {\n\tpublic readonly domEventType = [\n\t\t'mousemove', 'mouseleave'\n\t] as const;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic onDomEvent( domEvent: MouseEvent ): void {\n\t\tthis.fire( domEvent.type, domEvent );\n\t}\n}\n\n/**\n * Fired when the mouse is moved over one of the editables.\n *\n * Introduced by {@link module:table/tablemouse/mouseeventsobserver~MouseEventsObserver}.\n *\n * Note that this event is not available by default. To make it available,\n * {@link module:table/tablemouse/mouseeventsobserver~MouseEventsObserver} needs to be added\n * to {@link module:engine/view/view~View} using the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:table/tablemouse/mouseeventsobserver~MouseEventsObserver\n * @eventName module:engine/view/document~Document#mousemove\n * @param data Event data.\n */\nexport type ViewDocumentMouseMoveEvent = {\n\tname: 'mousemove';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n\n/**\n * Fired when the mouse is moved out of one of the editables.\n *\n * Introduced by {@link module:table/tablemouse/mouseeventsobserver~MouseEventsObserver}.\n *\n * Note that this event is not available by default. To make it available,\n * {@link module:table/tablemouse/mouseeventsobserver~MouseEventsObserver} needs to be added\n * to {@link module:engine/view/view~View} using the {@link module:engine/view/view~View#addObserver} method.\n *\n * @see module:table/tablemouse/mouseeventsobserver~MouseEventsObserver\n * @eventName module:engine/view/document~Document#mouseleave\n * @param data Event data.\n */\nexport type ViewDocumentMouseLeaveEvent = {\n\tname: 'mouseleave';\n\targs: [ data: DomEventData<MouseEvent> ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablemouse\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TableSelection from './tableselection';\nimport MouseEventsObserver from './tablemouse/mouseeventsobserver';\nimport TableUtils from './tableutils';\nimport type { DomEventData, Element } from 'ckeditor5/src/engine';\n\n/**\n * This plugin enables a table cells' selection with the mouse.\n * It is loaded automatically by the {@link module:table/table~Table} plugin.\n */\nexport default class TableMouse extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableMouse' {\n\t\treturn 'TableMouse';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableSelection, TableUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Currently the MouseObserver only handles `mousedown` and `mouseup` events.\n\t\t// TODO move to the engine?\n\t\teditor.editing.view.addObserver( MouseEventsObserver );\n\n\t\tthis._enableShiftClickSelection();\n\t\tthis._enableMouseDragSelection();\n\t}\n\n\t/**\n\t * Enables making cells selection by <kbd>Shift</kbd>+click. Creates a selection from the cell which previously held\n\t * the selection to the cell which was clicked. It can be the same cell, in which case it selects a single cell.\n\t */\n\tprivate _enableShiftClickSelection() {\n\t\tconst editor = this.editor;\n\t\tconst tableUtils = editor.plugins.get( TableUtils );\n\t\tlet blockSelectionChange = false;\n\n\t\tconst tableSelection = editor.plugins.get( TableSelection );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mousedown', ( evt, domEventData ) => {\n\t\t\tconst selection = editor.model.document.selection;\n\n\t\t\tif ( !this.isEnabled || !tableSelection.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !domEventData.domEvent.shiftKey ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst anchorCell = tableSelection.getAnchorCell() || tableUtils.getTableCellsContainingSelection( selection )[ 0 ];\n\n\t\t\tif ( !anchorCell ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst targetCell = this._getModelTableCellFromDomEvent( domEventData );\n\n\t\t\tif ( targetCell && haveSameTableParent( anchorCell, targetCell ) ) {\n\t\t\t\tblockSelectionChange = true;\n\t\t\t\ttableSelection.setCellSelection( anchorCell, targetCell );\n\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t}\n\t\t} );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mouseup', () => {\n\t\t\tblockSelectionChange = false;\n\t\t} );\n\n\t\t// We need to ignore a `selectionChange` event that is fired after we render our new table cells selection.\n\t\t// When downcasting table cells selection to the view, we put the view selection in the last selected cell\n\t\t// in a place that may not be natively a \"correct\" location. This is – we put it directly in the `<td>` element.\n\t\t// All browsers fire the native `selectionchange` event.\n\t\t// However, all browsers except Safari return the selection in the exact place where we put it\n\t\t// (even though it's visually normalized). Safari returns `<td><p>^foo` that makes our selection observer\n\t\t// fire our `selectionChange` event (because the view selection that we set in the first step differs from the DOM selection).\n\t\t// Since `selectionChange` is fired, we automatically update the model selection that moves it that paragraph.\n\t\t// This breaks our dear cells selection.\n\t\t//\n\t\t// Theoretically this issue concerns only Safari that is the only browser that do normalize the selection.\n\t\t// However, to avoid code branching and to have a good coverage for this event blocker, I enabled it for all browsers.\n\t\t//\n\t\t// Note: I'm keeping the `blockSelectionChange` state separately for shift+click and mouse drag (exact same logic)\n\t\t// so I don't have to try to analyze whether they don't overlap in some weird cases. Probably they don't.\n\t\t// But I have other things to do, like writing this comment.\n\t\tthis.listenTo( editor.editing.view.document, 'selectionChange', evt => {\n\t\t\tif ( blockSelectionChange ) {\n\t\t\t\t// @if CK_DEBUG // console.log( 'Blocked selectionChange to avoid breaking table cells selection.' );\n\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Enables making cells selection by dragging.\n\t *\n\t * The selection is made only on mousemove. Mouse tracking is started on mousedown.\n\t * However, the cells selection is enabled only after the mouse cursor left the anchor cell.\n\t * Thanks to that normal text selection within one cell works just fine. However, you can still select\n\t * just one cell by leaving the anchor cell and moving back to it.\n\t */\n\tprivate _enableMouseDragSelection() {\n\t\tconst editor = this.editor;\n\t\tlet anchorCell: Element | null, targetCell: Element | null;\n\t\tlet beganCellSelection = false;\n\t\tlet blockSelectionChange = false;\n\n\t\tconst tableSelection = editor.plugins.get( TableSelection );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mousedown', ( evt, domEventData ) => {\n\t\t\tif ( !this.isEnabled || !tableSelection.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Make sure to not conflict with the shift+click listener and any other possible handler.\n\t\t\tif ( domEventData.domEvent.shiftKey || domEventData.domEvent.ctrlKey || domEventData.domEvent.altKey ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tanchorCell = this._getModelTableCellFromDomEvent( domEventData );\n\t\t} );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mousemove', ( evt, domEventData ) => {\n\t\t\tif ( !domEventData.domEvent.buttons ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !anchorCell ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst newTargetCell = this._getModelTableCellFromDomEvent( domEventData );\n\n\t\t\tif ( newTargetCell && haveSameTableParent( anchorCell, newTargetCell ) ) {\n\t\t\t\ttargetCell = newTargetCell;\n\n\t\t\t\t// Switch to the cell selection mode after the mouse cursor left the anchor cell.\n\t\t\t\t// Switch off only on mouseup (makes selecting a single cell possible).\n\t\t\t\tif ( !beganCellSelection && targetCell != anchorCell ) {\n\t\t\t\t\tbeganCellSelection = true;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Yep, not making a cell selection yet. See method docs.\n\t\t\tif ( !beganCellSelection ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tblockSelectionChange = true;\n\t\t\ttableSelection.setCellSelection( anchorCell, targetCell! );\n\n\t\t\tdomEventData.preventDefault();\n\t\t} );\n\n\t\tthis.listenTo( editor.editing.view.document, 'mouseup', () => {\n\t\t\tbeganCellSelection = false;\n\t\t\tblockSelectionChange = false;\n\t\t\tanchorCell = null;\n\t\t\ttargetCell = null;\n\t\t} );\n\n\t\t// See the explanation in `_enableShiftClickSelection()`.\n\t\tthis.listenTo( editor.editing.view.document, 'selectionChange', evt => {\n\t\t\tif ( blockSelectionChange ) {\n\t\t\t\t// @if CK_DEBUG // console.log( 'Blocked selectionChange to avoid breaking table cells selection.' );\n\n\t\t\t\tevt.stop();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\t}\n\n\t/**\n\t * Returns the model table cell element based on the target element of the passed DOM event.\n\t *\n\t * @returns Returns the table cell or `undefined`.\n\t */\n\tprivate _getModelTableCellFromDomEvent( domEventData: DomEventData ) {\n\t\t// Note: Work with positions (not element mapping) because the target element can be an attribute or other non-mapped element.\n\t\tconst viewTargetElement = domEventData.target;\n\t\tconst viewPosition = this.editor.editing.view.createPositionAt( viewTargetElement, 0 );\n\t\tconst modelPosition = this.editor.editing.mapper.toModelPosition( viewPosition );\n\t\tconst modelElement = modelPosition.parent as Element;\n\n\t\treturn modelElement.findAncestor( 'tableCell', { includeSelf: true } );\n\t}\n}\n\nfunction haveSameTableParent( cellA: Element, cellB: Element ) {\n\treturn cellA.parent!.parent == cellB.parent!.parent;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./table.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/ui/widget\n */\n\nimport type { ViewDocumentFragment, ViewDocumentSelection, ViewElement, ViewNode } from 'ckeditor5/src/engine';\n\nimport { isWidget } from 'ckeditor5/src/widget';\n\n/**\n * Returns a table widget editing view element if one is selected.\n */\nexport function getSelectedTableWidget( selection: ViewDocumentSelection ): ViewElement | null {\n\tconst viewElement = selection.getSelectedElement();\n\n\tif ( viewElement && isTableWidget( viewElement ) ) {\n\t\treturn viewElement;\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns a table widget editing view element if one is among the selection's ancestors.\n */\nexport function getTableWidgetAncestor( selection: ViewDocumentSelection ): ViewElement | null {\n\tconst selectionPosition = selection.getFirstPosition();\n\n\tif ( !selectionPosition ) {\n\t\treturn null;\n\t}\n\n\tlet parent: ViewNode | ViewDocumentFragment | null = selectionPosition.parent;\n\n\twhile ( parent ) {\n\t\tif ( parent.is( 'element' ) && isTableWidget( parent ) ) {\n\t\t\treturn parent;\n\t\t}\n\n\t\tparent = parent.parent;\n\t}\n\n\treturn null;\n}\n\n/**\n * Checks if a given view element is a table widget.\n */\nfunction isTableWidget( viewElement: ViewElement ): boolean {\n\treturn !!viewElement.getCustomProperty( 'table' ) && isWidget( viewElement );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablepropertycommand\n */\n\nimport type { Batch, Element } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\n\nexport interface TablePropertyCommandExecuteOptions {\n\tbatch?: Batch;\n\tcolumnWidths?: string;\n\ttable?: Element;\n\ttableWidth?: string;\n\tvalue?: string;\n}\n\n/**\n * The table cell attribute command.\n *\n * This command is a base command for other table property commands.\n */\nexport default class TablePropertyCommand extends Command {\n\t/**\n\t * The attribute that will be set by the command.\n\t */\n\tpublic readonly attributeName: string;\n\n\t/**\n\t * The default value for the attribute.\n\t */\n\tprotected readonly _defaultValue: string | undefined;\n\n\t/**\n\t * Creates a new `TablePropertyCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param attributeName Table cell attribute name.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, attributeName: string, defaultValue?: string ) {\n\t\tsuper( editor );\n\n\t\tthis.attributeName = attributeName;\n\t\tthis._defaultValue = defaultValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst selection = editor.model.document.selection;\n\n\t\tconst table = selection.getFirstPosition()!.findAncestor( 'table' )!;\n\n\t\tthis.isEnabled = !!table;\n\t\tthis.value = this._getValue( table );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options.value If set, the command will set the attribute on the selected table.\n\t * If not set, the command will remove the attribute from the selected table.\n\t * @param options.batch Pass the model batch instance to the command to aggregate changes,\n\t * for example, to allow a single undo step for multiple executions.\n\t */\n\tpublic override execute( options: TablePropertyCommandExecuteOptions = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\tconst { value, batch } = options;\n\n\t\tconst table = selection.getFirstPosition()!.findAncestor( 'table' )!;\n\t\tconst valueToSet = this._getValueToSet( value );\n\n\t\tmodel.enqueueChange( batch, writer => {\n\t\t\tif ( valueToSet ) {\n\t\t\t\twriter.setAttribute( this.attributeName, valueToSet, table );\n\t\t\t} else {\n\t\t\t\twriter.removeAttribute( this.attributeName, table );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the attribute value for a table.\n\t */\n\tprotected _getValue( table: Element ): unknown {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = table.getAttribute( this.attributeName );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Returns the proper model value. It can be used to add a default unit to numeric values.\n\t */\n\tprotected _getValueToSet( value: string | number | undefined ): unknown {\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablebackgroundcolorcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport TablePropertyCommand from './tablepropertycommand';\n\n/**\n * The table background color command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBackgroundColor'` editor command.\n *\n * To change the background color of the selected table, execute the command:\n *\n * ```ts\n * editor.execute( 'tableBackgroundColor', {\n *   value: '#f00'\n * } );\n * ```\n */\nexport default class TableBackgroundColorCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBackgroundColorCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableBackgroundColor', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/table-properties\n */\n\nimport type { BoxSides } from 'ckeditor5/src/engine';\nimport { isObject } from 'lodash-es';\n\n/**\n * Returns a string if all four values of box sides are equal.\n *\n * If a string is passed, it is treated as a single value (pass-through).\n *\n * ```ts\n * // Returns 'foo':\n * getSingleValue( { top: 'foo', right: 'foo', bottom: 'foo', left: 'foo' } );\n * getSingleValue( 'foo' );\n *\n * // Returns undefined:\n * getSingleValue( { top: 'foo', right: 'foo', bottom: 'bar', left: 'foo' } );\n * getSingleValue( { top: 'foo', right: 'foo' } );\n * ```\n */\nexport function getSingleValue( objectOrString: BoxSides | string | undefined ): string | undefined {\n\tif ( !objectOrString || !isObject( objectOrString ) ) {\n\t\treturn objectOrString;\n\t}\n\n\tconst { top, right, bottom, left } = objectOrString;\n\n\tif ( top == right && right == bottom && bottom == left ) {\n\t\treturn top!;\n\t}\n}\n\n/**\n * Adds a unit to a value if the value is a number or a string representing a number.\n *\n * **Note**: It does nothing to non-numeric values.\n *\n * ```ts\n * getSingleValue( 25, 'px' ); // '25px'\n * getSingleValue( 25, 'em' ); // '25em'\n * getSingleValue( '25em', 'px' ); // '25em'\n * getSingleValue( 'foo', 'px' ); // 'foo'\n * ```\n *\n * @param defaultUnit A default unit added to a numeric value.\n */\nexport function addDefaultUnitToNumericValue( value: string | number | undefined, defaultUnit: string ): string | number | undefined {\n\tconst numericValue = parseFloat( value as any );\n\n\tif ( Number.isNaN( numericValue ) ) {\n\t\treturn value;\n\t}\n\n\tif ( String( numericValue ) !== String( value ) ) {\n\t\treturn value;\n\t}\n\n\treturn `${ numericValue }${ defaultUnit }`;\n}\n\nexport interface NormalizedDefaultProperties {\n\tborderStyle: string;\n\tborderWidth: string;\n\tborderColor: string;\n\tbackgroundColor: string;\n\twidth: string;\n\theight: string;\n\talignment?: string;\n\tpadding?: string;\n\tverticalAlignment?: string;\n\thorizontalAlignment?: string;\n}\n\n/**\n * Returns the normalized configuration.\n *\n * @param options.includeAlignmentProperty Whether the \"alignment\" property should be added.\n * @param options.includePaddingProperty Whether the \"padding\" property should be added.\n * @param options.includeVerticalAlignmentProperty Whether the \"verticalAlignment\" property should be added.\n * @param options.includeHorizontalAlignmentProperty Whether the \"horizontalAlignment\" property should be added.\n * @param options.isRightToLeftContent Whether the content is right-to-left.\n */\nexport function getNormalizedDefaultProperties(\n\tconfig: Partial<NormalizedDefaultProperties> | undefined,\n\toptions: {\n\t\tincludeAlignmentProperty?: boolean;\n\t\tincludePaddingProperty?: boolean;\n\t\tincludeVerticalAlignmentProperty?: boolean;\n\t\tincludeHorizontalAlignmentProperty?: boolean;\n\t\tisRightToLeftContent?: boolean;\n\t} = {}\n): NormalizedDefaultProperties {\n\tconst normalizedConfig: NormalizedDefaultProperties = {\n\t\tborderStyle: 'none',\n\t\tborderWidth: '',\n\t\tborderColor: '',\n\t\tbackgroundColor: '',\n\t\twidth: '',\n\t\theight: '',\n\t\t...config\n\t};\n\n\tif ( options.includeAlignmentProperty && !normalizedConfig.alignment ) {\n\t\tnormalizedConfig.alignment = 'center';\n\t}\n\n\tif ( options.includePaddingProperty && !normalizedConfig.padding ) {\n\t\tnormalizedConfig.padding = '';\n\t}\n\n\tif ( options.includeVerticalAlignmentProperty && !normalizedConfig.verticalAlignment ) {\n\t\tnormalizedConfig.verticalAlignment = 'middle';\n\t}\n\n\tif ( options.includeHorizontalAlignmentProperty && !normalizedConfig.horizontalAlignment ) {\n\t\tnormalizedConfig.horizontalAlignment = options.isRightToLeftContent ? 'right' : 'left';\n\t}\n\n\treturn normalizedConfig;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablebordercolorcommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table border color command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBorderColor'` editor command.\n *\n * To change the border color of the selected table, execute the command:\n *\n * ```ts\n * editor.execute( 'tableBorderColor', {\n *   value: '#f00'\n * } );\n * ```\n */\nexport default class TableBorderColorCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBorderColorCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableBorderColor', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValue( table: Element ): unknown {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( table.getAttribute( this.attributeName ) as string );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tableborderstylecommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\nimport type { Editor } from 'ckeditor5/src/core';\n\n/**\n * The table style border command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBorderStyle'` editor command.\n *\n * To change the border style of the selected table, execute the command:\n *\n * ```ts\n * editor.execute( 'tableBorderStyle', {\n *   value: 'dashed'\n * } );\n * ```\n */\nexport default class TableBorderStyleCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBorderStyleCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableBorderStyle', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValue( table: Element ): unknown {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( table.getAttribute( this.attributeName ) as string );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tableborderwidthcommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { addDefaultUnitToNumericValue, getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table width border command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableBorderWidth'` editor command.\n *\n * To change the border width of the selected table, execute the command:\n *\n * ```ts\n * editor.execute( 'tableBorderWidth', {\n *   value: '5px'\n * } );\n * ```\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n * ```ts\n * editor.execute( 'tableBorderWidth', {\n *   value: '5'\n * } );\n * ```\n *\n * will set the `borderWidth` attribute to `'5px'` in the model.\n */\nexport default class TableBorderWidthCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableBorderWidthCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableBorderWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValue( table: Element ): string | undefined {\n\t\tif ( !table ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( table.getAttribute( this.attributeName ) as string );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValueToSet( value: string | number | undefined ): unknown {\n\t\tconst newValue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( newValue === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn newValue;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablewidthcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\nimport type { Editor } from 'ckeditor5/src/core';\n\n/**\n * The table width command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableWidth'` editor command.\n *\n * To change the width of the selected table, execute the command:\n *\n * ```ts\n * editor.execute( 'tableWidth', {\n *   value: '400px'\n * } );\n * ```\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n * ```ts\n * editor.execute( 'tableWidth', {\n *   value: '50'\n * } );\n * ```\n *\n * will set the `width` attribute to `'50px'` in the model.\n */\nexport default class TableWidthCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableWidthCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override _getValueToSet( value: string | number | undefined ): unknown {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tableheightcommand\n */\n\nimport TablePropertyCommand from './tablepropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\nimport type { Editor } from 'ckeditor5/src/core';\n\n/**\n * The table height command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableHeight'` editor command.\n *\n * To change the height of the selected table, execute the command:\n *\n * ```ts\n * editor.execute( 'tableHeight', {\n *   value: '500px'\n * } );\n * ```\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n * ```ts\n * editor.execute( 'tableHeight', {\n *   value: '50'\n * } );\n * ```\n *\n * will set the `height` attribute to `'50px'` in the model.\n */\nexport default class TableHeightCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableHeightCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableHeight', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValueToSet( value: string | number | undefined ): unknown {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/commands/tablealignmentcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport TablePropertyCommand from './tablepropertycommand';\n\n/**\n * The table alignment command.\n *\n * The command is registered by the {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing} as\n * the `'tableAlignment'` editor command.\n *\n * To change the alignment of the selected table, execute the command:\n *\n * ```ts\n * editor.execute( 'tableAlignment', {\n *   value: 'right'\n * } );\n * ```\n */\nexport default class TableAlignmentCommand extends TablePropertyCommand {\n\t/**\n\t * Creates a new `TableAlignmentCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value for the \"alignment\" attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableAlignment', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/tablepropertiesediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { addBackgroundRules, addBorderRules, type ViewElement, type Conversion, type Schema } from 'ckeditor5/src/engine';\n\nimport TableEditing from '../tableediting';\nimport {\n\tdowncastAttributeToStyle,\n\tdowncastTableAttribute,\n\tupcastBorderStyles,\n\tupcastStyleToAttribute\n} from '../converters/tableproperties';\nimport TableBackgroundColorCommand from './commands/tablebackgroundcolorcommand';\nimport TableBorderColorCommand from './commands/tablebordercolorcommand';\nimport TableBorderStyleCommand from './commands/tableborderstylecommand';\nimport TableBorderWidthCommand from './commands/tableborderwidthcommand';\nimport TableWidthCommand from './commands/tablewidthcommand';\nimport TableHeightCommand from './commands/tableheightcommand';\nimport TableAlignmentCommand from './commands/tablealignmentcommand';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\n\nconst ALIGN_VALUES_REG_EXP = /^(left|center|right)$/;\nconst FLOAT_VALUES_REG_EXP = /^(left|none|right)$/;\n\n/**\n * The table properties editing feature.\n *\n * Introduces table's model attributes and their conversion:\n *\n * - border: `tableBorderStyle`, `tableBorderColor` and `tableBorderWidth`\n * - background color: `tableBackgroundColor`\n * - horizontal alignment: `tableAlignment`\n * - width & height: `tableWidth` & `tableHeight`\n *\n * It also registers commands used to manipulate the above attributes:\n *\n * - border: `'tableBorderStyle'`, `'tableBorderColor'` and `'tableBorderWidth'` commands\n * - background color: `'tableBackgroundColor'`\n * - horizontal alignment: `'tableAlignment'`\n * - width & height: `'tableWidth'` & `'tableHeight'`\n */\nexport default class TablePropertiesEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TablePropertiesEditing' {\n\t\treturn 'TablePropertiesEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst conversion = editor.conversion;\n\n\t\teditor.config.define( 'table.tableProperties.defaultProperties', {} );\n\n\t\tconst defaultTableProperties = getNormalizedDefaultProperties( editor.config.get( 'table.tableProperties.defaultProperties' )!, {\n\t\t\tincludeAlignmentProperty: true\n\t\t} );\n\n\t\teditor.data.addStyleProcessorRules( addBorderRules );\n\t\tenableBorderProperties( schema, conversion, {\n\t\t\tcolor: defaultTableProperties.borderColor,\n\t\t\tstyle: defaultTableProperties.borderStyle,\n\t\t\twidth: defaultTableProperties.borderWidth\n\t\t} );\n\n\t\teditor.commands.add( 'tableBorderColor', new TableBorderColorCommand( editor, defaultTableProperties.borderColor ) );\n\t\teditor.commands.add( 'tableBorderStyle', new TableBorderStyleCommand( editor, defaultTableProperties.borderStyle ) );\n\t\teditor.commands.add( 'tableBorderWidth', new TableBorderWidthCommand( editor, defaultTableProperties.borderWidth ) );\n\n\t\tenableAlignmentProperty( schema, conversion, defaultTableProperties.alignment! );\n\t\teditor.commands.add( 'tableAlignment', new TableAlignmentCommand( editor, defaultTableProperties.alignment! ) );\n\n\t\tenableTableToFigureProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableWidth',\n\t\t\tstyleName: 'width',\n\t\t\tdefaultValue: defaultTableProperties.width\n\t\t} );\n\t\teditor.commands.add( 'tableWidth', new TableWidthCommand( editor, defaultTableProperties.width ) );\n\n\t\tenableTableToFigureProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableHeight',\n\t\t\tstyleName: 'height',\n\t\t\tdefaultValue: defaultTableProperties.height\n\t\t} );\n\t\teditor.commands.add( 'tableHeight', new TableHeightCommand( editor, defaultTableProperties.height ) );\n\n\t\teditor.data.addStyleProcessorRules( addBackgroundRules );\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableBackgroundColor',\n\t\t\tstyleName: 'background-color',\n\t\t\tdefaultValue: defaultTableProperties.backgroundColor\n\t\t} );\n\t\teditor.commands.add(\n\t\t\t'tableBackgroundColor',\n\t\t\tnew TableBackgroundColorCommand( editor, defaultTableProperties.backgroundColor )\n\t\t);\n\t}\n}\n\n/**\n * Enables `tableBorderStyle'`, `tableBorderColor'` and `tableBorderWidth'` attributes for table.\n *\n * @param defaultBorder The default border values.\n * @param defaultBorder.color The default `tableBorderColor` value.\n * @param defaultBorder.style The default `tableBorderStyle` value.\n * @param defaultBorder.width The default `tableBorderWidth` value.\n */\nfunction enableBorderProperties( schema: Schema, conversion: Conversion, defaultBorder: { color: string; style: string; width: string } ) {\n\tconst modelAttributes = {\n\t\twidth: 'tableBorderWidth',\n\t\tcolor: 'tableBorderColor',\n\t\tstyle: 'tableBorderStyle'\n\t};\n\n\tschema.extend( 'table', {\n\t\tallowAttributes: Object.values( modelAttributes )\n\t} );\n\n\tupcastBorderStyles( conversion, 'table', modelAttributes, defaultBorder );\n\n\tdowncastTableAttribute( conversion, { modelAttribute: modelAttributes.color, styleName: 'border-color' } );\n\tdowncastTableAttribute( conversion, { modelAttribute: modelAttributes.style, styleName: 'border-style' } );\n\tdowncastTableAttribute( conversion, { modelAttribute: modelAttributes.width, styleName: 'border-width' } );\n}\n\n/**\n * Enables the `'alignment'` attribute for table.\n *\n * @param defaultValue The default alignment value.\n */\nfunction enableAlignmentProperty( schema: Schema, conversion: Conversion, defaultValue: string ) {\n\tschema.extend( 'table', {\n\t\tallowAttributes: [ 'tableAlignment' ]\n\t} );\n\n\tconversion.for( 'downcast' )\n\t\t.attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tkey: 'tableAlignment'\n\t\t\t},\n\t\t\tview: alignment => ( {\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\t// Model: `alignment:center` => CSS: `float:none`.\n\t\t\t\t\tfloat: alignment === 'center' ? 'none' : alignment\n\t\t\t\t}\n\t\t\t} ),\n\t\t\tconverterPriority: 'high'\n\t\t} );\n\n\tconversion.for( 'upcast' )\n\t\t// Support for the `float:*;` CSS definition for the table alignment.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(table|figure)$/,\n\t\t\t\tstyles: {\n\t\t\t\t\tfloat: FLOAT_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableAlignment',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tlet align = viewElement.getStyle( 'float' );\n\n\t\t\t\t\t// CSS: `float:none` => Model: `alignment:center`.\n\t\t\t\t\tif ( align === 'none' ) {\n\t\t\t\t\t\talign = 'center';\n\t\t\t\t\t}\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} )\n\t\t// Support for the `align` attribute as the backward compatibility while pasting from other sources.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tattributes: {\n\t\t\t\t\talign: ALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tkey: 'tableAlignment',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tconst align = viewElement.getAttribute( 'align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n}\n\n/**\n * Enables conversion for an attribute for simple view-model mappings.\n *\n * @param options.defaultValue The default value for the specified `modelAttribute`.\n */\nfunction enableProperty(\n\tschema: Schema,\n\tconversion: Conversion,\n\toptions: {\n\t\tmodelAttribute: string;\n\t\tstyleName: string;\n\t\tdefaultValue: string;\n\t}\n) {\n\tconst { modelAttribute } = options;\n\n\tschema.extend( 'table', {\n\t\tallowAttributes: [ modelAttribute ]\n\t} );\n\tupcastStyleToAttribute( conversion, { viewElement: 'table', ...options } );\n\tdowncastTableAttribute( conversion, options );\n}\n\n/**\n * Enables conversion for an attribute for simple view (figure) to model (table) mappings.\n */\nfunction enableTableToFigureProperty(\n\tschema: Schema,\n\tconversion: Conversion,\n\toptions: {\n\t\tmodelAttribute: string;\n\t\tstyleName: string;\n\t\tdefaultValue: string;\n\t}\n) {\n\tconst { modelAttribute } = options;\n\n\tschema.extend( 'table', {\n\t\tallowAttributes: [ modelAttribute ]\n\t} );\n\n\tupcastStyleToAttribute( conversion, {\n\t\tviewElement: /^(table|figure)$/,\n\t\tshouldUpcast: ( element: ViewElement ) => !( element.name == 'table' && element.parent!.name == 'figure' ),\n\t\t...options\n\t} );\n\n\tdowncastAttributeToStyle( conversion, { modelElement: 'table', ...options } );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./colorinput.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/ui/colorinputview\n */\n\nimport {\n\tView,\n\tInputTextView,\n\tButtonView,\n\tcreateDropdown,\n\tColorGridView,\n\tFocusCycler,\n\tViewCollection,\n\ttype ColorDefinition,\n\ttype DropdownView\n} from 'ckeditor5/src/ui';\nimport { icons } from 'ckeditor5/src/core';\nimport { FocusTracker, KeystrokeHandler, type Locale } from 'ckeditor5/src/utils';\n\nimport '../../theme/colorinput.css';\n\nexport type ColorInputViewOptions = {\n\tcolorDefinitions: Array<ColorDefinition>;\n\tcolumns: number;\n\tdefaultColorValue?: string;\n};\n\n/**\n * The color input view class. It allows the user to type in a color (hex, rgb, etc.)\n * or choose it from the configurable color palette with a preview.\n *\n * @internal\n */\nexport default class ColorInputView extends View {\n\t/**\n\t * The value of the input.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public value: string;\n\n\t/**\n\t * Controls whether the input view is in read-only mode.\n\t *\n\t * @observable\n\t * @default false\n\t */\n\tdeclare public isReadOnly: boolean;\n\n\t/**\n\t * An observable flag set to `true` when the input is focused by the user.\n\t * `false` otherwise.\n\t *\n\t * @observable\n\t * @default false\n\t */\n\tdeclare public readonly isFocused: boolean;\n\n\t/**\n\t * An observable flag set to `true` when the input contains no text.\n\t *\n\t * @observable\n\t * @default true\n\t */\n\tdeclare public readonly isEmpty: boolean;\n\n\t/**\n\t * @observable\n\t */\n\tdeclare public hasError: boolean;\n\n\t/**\n\t * A cached reference to the options passed to the constructor.\n\t */\n\tpublic options: ColorInputViewOptions;\n\n\t/**\n\t * Tracks information about the DOM focus in the view.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * A collection of views that can be focused in the view.\n\t */\n\tprotected readonly _focusables: ViewCollection;\n\n\t/**\n\t * An instance of the dropdown allowing to select a color from a grid.\n\t */\n\tpublic dropdownView: DropdownView;\n\n\t/**\n\t * An instance of the input allowing the user to type a color value.\n\t */\n\tpublic inputView: InputTextView;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * The flag that indicates whether the user is still typing.\n\t * If set to true, it means that the text input field ({@link #inputView}) still has the focus.\n\t * So, we should interrupt the user by replacing the input's value.\n\t */\n\tprotected _stillTyping: boolean;\n\n\t/**\n\t * Helps cycling over focusable items in the view.\n\t */\n\tprotected readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * Creates an instance of the color input view.\n\t *\n\t * @param locale The locale instance.\n\t * @param options The input options.\n\t * @param options.colorDefinitions The colors to be displayed in the palette inside the input's dropdown.\n\t * @param options.columns The number of columns in which the colors will be displayed.\n\t * @param options.defaultColorValue If specified, the color input view will replace the \"Remove color\" button with\n\t * the \"Restore default\" button. Instead of clearing the input field, the default color value will be set.\n\t */\n\tconstructor( locale: Locale, options: ColorInputViewOptions ) {\n\t\tsuper( locale );\n\n\t\tthis.set( 'value', '' );\n\t\tthis.set( 'isReadOnly', false );\n\t\tthis.set( 'isFocused', false );\n\t\tthis.set( 'isEmpty', true );\n\n\t\tthis.options = options;\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis._focusables = new ViewCollection();\n\t\tthis.dropdownView = this._createDropdownView();\n\t\tthis.inputView = this._createInputTextView();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis._stillTyping = false;\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate items backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate items forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-input-color'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\tthis.dropdownView,\n\t\t\t\tthis.inputView\n\t\t\t]\n\t\t} );\n\n\t\tthis.on( 'change:value', ( evt, name, inputValue ) => this._setInputValue( inputValue ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Start listening for the keystrokes coming from the dropdown panel view.\n\t\tthis.keystrokes.listenTo( this.dropdownView.panelView.element! );\n\t}\n\n\t/**\n\t * Focuses the input.\n\t */\n\tpublic focus(): void {\n\t\tthis.inputView.focus();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Creates and configures the {@link #dropdownView}.\n\t */\n\tprivate _createDropdownView() {\n\t\tconst locale = this.locale!;\n\t\tconst t = locale.t;\n\t\tconst bind = this.bindTemplate;\n\t\tconst colorGrid = this._createColorGrid( locale );\n\t\tconst dropdown = createDropdown( locale );\n\t\tconst colorPreview = new View();\n\t\tconst removeColorButton = this._createRemoveColorButton();\n\n\t\tcolorPreview.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-input-color__button__preview'\n\t\t\t\t],\n\t\t\t\tstyle: {\n\t\t\t\t\tbackgroundColor: bind.to( 'value' )\n\t\t\t\t}\n\t\t\t},\n\t\t\tchildren: [ {\n\t\t\t\ttag: 'span',\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t'ck-input-color__button__preview__no-color-indicator',\n\t\t\t\t\t\tbind.if( 'value', 'ck-hidden', value => value != '' )\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} ]\n\t\t} );\n\n\t\tdropdown.buttonView.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-input-color__button'\n\t\t\t}\n\t\t} );\n\n\t\tdropdown.buttonView.children.add( colorPreview );\n\t\tdropdown.buttonView.label = t( 'Color picker' );\n\t\tdropdown.buttonView.tooltip = true;\n\n\t\tdropdown.panelPosition = locale.uiLanguageDirection === 'rtl' ? 'se' : 'sw';\n\t\tdropdown.panelView.children.add( removeColorButton );\n\t\tdropdown.panelView.children.add( colorGrid );\n\t\tdropdown.bind( 'isEnabled' ).to( this, 'isReadOnly', value => !value );\n\n\t\tthis._focusables.add( removeColorButton );\n\t\tthis._focusables.add( colorGrid );\n\n\t\tthis.focusTracker.add( removeColorButton.element! );\n\t\tthis.focusTracker.add( colorGrid.element! );\n\n\t\treturn dropdown;\n\t}\n\n\t/**\n\t * Creates and configures an instance of {@link module:ui/inputtext/inputtextview~InputTextView}.\n\t *\n\t * @returns A configured instance to be set as {@link #inputView}.\n\t */\n\tprivate _createInputTextView(): InputTextView {\n\t\tconst locale = this.locale;\n\t\tconst inputView = new InputTextView( locale );\n\n\t\tinputView.extendTemplate( {\n\t\t\ton: {\n\t\t\t\tblur: inputView.bindTemplate.to( 'blur' )\n\t\t\t}\n\t\t} );\n\n\t\tinputView.value = this.value;\n\t\tinputView.bind( 'isReadOnly', 'hasError' ).to( this );\n\t\tthis.bind( 'isFocused', 'isEmpty' ).to( inputView );\n\n\t\tinputView.on( 'input', () => {\n\t\t\tconst inputValue = inputView.element!.value;\n\t\t\t// Check if the value matches one of our defined colors' label.\n\t\t\tconst mappedColor = this.options.colorDefinitions.find( def => inputValue === def.label );\n\n\t\t\tthis._stillTyping = true;\n\t\t\tthis.value = mappedColor && mappedColor.color || inputValue;\n\t\t} );\n\n\t\tinputView.on( 'blur', () => {\n\t\t\tthis._stillTyping = false;\n\t\t\tthis._setInputValue( inputView.element!.value );\n\t\t} );\n\n\t\tinputView.delegate( 'input' ).to( this );\n\n\t\treturn inputView;\n\t}\n\n\t/**\n\t * Creates and configures the button that clears the color.\n\t */\n\tprivate _createRemoveColorButton() {\n\t\tconst locale = this.locale!;\n\t\tconst t = locale.t;\n\t\tconst removeColorButton = new ButtonView( locale );\n\t\tconst defaultColor = this.options.defaultColorValue || '';\n\t\tconst removeColorButtonLabel = defaultColor ? t( 'Restore default' ) : t( 'Remove color' );\n\n\t\tremoveColorButton.class = 'ck-input-color__remove-color';\n\t\tremoveColorButton.withText = true;\n\t\tremoveColorButton.icon = icons.eraser;\n\t\tremoveColorButton.label = removeColorButtonLabel;\n\t\tremoveColorButton.on( 'execute', () => {\n\t\t\tthis.value = defaultColor;\n\t\t\tthis.dropdownView.isOpen = false;\n\t\t\tthis.fire( 'input' );\n\t\t} );\n\n\t\treturn removeColorButton;\n\t}\n\n\t/**\n\t * Creates and configures the color grid inside the {@link #dropdownView}.\n\t */\n\tprivate _createColorGrid( locale: Locale ) {\n\t\tconst colorGrid = new ColorGridView( locale, {\n\t\t\tcolorDefinitions: this.options.colorDefinitions,\n\t\t\tcolumns: this.options.columns\n\t\t} );\n\n\t\tcolorGrid.on( 'execute', ( evtData, data ) => {\n\t\t\tthis.value = data.value;\n\t\t\tthis.dropdownView.isOpen = false;\n\t\t\tthis.fire( 'input' );\n\t\t} );\n\t\tcolorGrid.bind( 'selectedColor' ).to( this, 'value' );\n\n\t\treturn colorGrid;\n\t}\n\n\t/**\n\t * Sets {@link #inputView}'s value property to the color value or color label,\n\t * if there is one and the user is not typing.\n\t *\n\t * Handles cases like:\n\t *\n\t * * Someone picks the color in the grid.\n\t * * The color is set from the plugin level.\n\t *\n\t * @param inputValue Color value to be set.\n\t */\n\tprivate _setInputValue( inputValue: string ) {\n\t\tif ( !this._stillTyping ) {\n\t\t\tconst normalizedInputValue = normalizeColor( inputValue );\n\t\t\t// Check if the value matches one of our defined colors.\n\t\t\tconst mappedColor = this.options.colorDefinitions.find( def => normalizedInputValue === normalizeColor( def.color ) );\n\n\t\t\tif ( mappedColor ) {\n\t\t\t\tthis.inputView.value = mappedColor.label;\n\t\t\t} else {\n\t\t\t\tthis.inputView.value = inputValue || '';\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Normalizes color value, by stripping extensive whitespace.\n * For example., transforms:\n * * `   rgb(  25 50    0 )` to `rgb(25 50 0)`,\n * * \"\\t  rgb(  25 ,  50,0 )\t\t\" to `rgb(25 50 0)`.\n *\n * @param colorString The value to be normalized.\n */\nfunction normalizeColor( colorString: string ): string {\n\treturn colorString\n\t\t// Remove any whitespace right after `(` or `,`.\n\t\t.replace( /([(,])\\s+/g, '$1' )\n\t\t// Remove any whitespace at the beginning or right before the end, `)`, `,`, or another whitespace.\n\t\t.replace( /^\\s+|\\s+(?=[),\\s]|$)/g, '' )\n\t\t// Then, replace `,` or whitespace with a single space.\n\t\t.replace( /,|\\s/g, ' ' );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/ui/table-properties\n */\n\nimport {\n\tButtonView,\n\tModel,\n\ttype ColorOption,\n\ttype LabeledFieldView,\n\ttype ListDropdownItemDefinition,\n\ttype NormalizedColorOption,\n\ttype ToolbarView,\n\ttype View\n} from 'ckeditor5/src/ui';\n\nimport { Collection, type LocaleTranslate } from 'ckeditor5/src/utils';\nimport { isColor, isLength, isPercentage } from 'ckeditor5/src/engine';\n\nimport type TableCellPropertiesView from '../../tablecellproperties/ui/tablecellpropertiesview';\nimport type TablePropertiesView from '../../tableproperties/ui/tablepropertiesview';\n\nimport ColorInputView from '../../ui/colorinputview';\n\nconst isEmpty = ( val: string ) => val === '';\n\n/**\n * Returns an object containing pairs of CSS border style values and their localized UI\n * labels. Used by {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView}\n * and {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView}.\n *\n * @param t The \"t\" function provided by the editor that is used to localize strings.\n */\nexport function getBorderStyleLabels( t: LocaleTranslate ): Record<string, string> {\n\treturn {\n\t\tnone: t( 'None' ),\n\t\tsolid: t( 'Solid' ),\n\t\tdotted: t( 'Dotted' ),\n\t\tdashed: t( 'Dashed' ),\n\t\tdouble: t( 'Double' ),\n\t\tgroove: t( 'Groove' ),\n\t\tridge: t( 'Ridge' ),\n\t\tinset: t( 'Inset' ),\n\t\toutset: t( 'Outset' )\n\t};\n}\n\n/**\n * Returns a localized error string that can be displayed next to color (background, border)\n * fields that have an invalid value.\n *\n * @param t The \"t\" function provided by the editor that is used to localize strings.\n */\nexport function getLocalizedColorErrorText( t: LocaleTranslate ): string {\n\treturn t( 'The color is invalid. Try \"#FF0000\" or \"rgb(255,0,0)\" or \"red\".' );\n}\n\n/**\n * Returns a localized error string that can be displayed next to length (padding, border width)\n * fields that have an invalid value.\n *\n * @param t The \"t\" function provided by the editor that is used to localize strings.\n */\nexport function getLocalizedLengthErrorText( t: LocaleTranslate ): string {\n\treturn t( 'The value is invalid. Try \"10px\" or \"2em\" or simply \"2\".' );\n}\n\n/**\n * Returns `true` when the passed value is an empty string or a valid CSS color expression.\n * Otherwise, `false` is returned.\n *\n * See {@link module:engine/view/styles/utils~isColor}.\n */\nexport function colorFieldValidator( value: string ): boolean {\n\tvalue = value.trim();\n\n\treturn isEmpty( value ) || isColor( value );\n}\n\n/**\n * Returns `true` when the passed value is an empty string, a number without a unit or a valid CSS length expression.\n * Otherwise, `false` is returned.\n *\n * See {@link module:engine/view/styles/utils~isLength}.\n * See {@link module:engine/view/styles/utils~isPercentage}.\n */\nexport function lengthFieldValidator( value: string ): boolean {\n\tvalue = value.trim();\n\n\treturn isEmpty( value ) || isNumberString( value ) || isLength( value ) || isPercentage( value );\n}\n\n/**\n * Returns `true` when the passed value is an empty string, a number without a unit or a valid CSS length expression.\n * Otherwise, `false` is returned.\n *\n * See {@link module:engine/view/styles/utils~isLength}.\n */\nexport function lineWidthFieldValidator( value: string ): boolean {\n\tvalue = value.trim();\n\n\treturn isEmpty( value ) || isNumberString( value ) || isLength( value );\n}\n\n/**\n * Generates item definitions for a UI dropdown that allows changing the border style of a table or a table cell.\n *\n * @param defaultStyle The default border.\n */\nexport function getBorderStyleDefinitions(\n\tview: TableCellPropertiesView | TablePropertiesView,\n\tdefaultStyle: string\n): Collection<ListDropdownItemDefinition> {\n\tconst itemDefinitions: Collection<ListDropdownItemDefinition> = new Collection();\n\tconst styleLabels = getBorderStyleLabels( view.t! );\n\n\tfor ( const style in styleLabels ) {\n\t\tconst definition: ListDropdownItemDefinition = {\n\t\t\ttype: 'button',\n\t\t\tmodel: new Model( {\n\t\t\t\t_borderStyleValue: style,\n\t\t\t\tlabel: styleLabels[ style ],\n\t\t\t\twithText: true\n\t\t\t} )\n\t\t};\n\n\t\tif ( style === 'none' ) {\n\t\t\tdefinition.model.bind( 'isOn' ).to( view, 'borderStyle', value => {\n\t\t\t\tif ( defaultStyle === 'none' ) {\n\t\t\t\t\treturn !value;\n\t\t\t\t}\n\n\t\t\t\treturn value === style;\n\t\t\t} );\n\t\t} else {\n\t\t\tdefinition.model.bind( 'isOn' ).to( view, 'borderStyle', value => {\n\t\t\t\treturn value === style;\n\t\t\t} );\n\t\t}\n\n\t\titemDefinitions.add( definition );\n\t}\n\n\treturn itemDefinitions;\n}\n\n/**\n * A helper that fills a toolbar with buttons that:\n *\n * * have some labels,\n * * have some icons,\n * * set a certain UI view property value upon execution.\n *\n * @param nameToValue A function that maps a button name to a value. By default names are the same as values.\n */\nexport function fillToolbar<TView extends View, TPropertyName extends keyof TView>(\n\toptions: {\n\t\tview: TView;\n\t\ticons: Record<string, string>;\n\t\ttoolbar: ToolbarView;\n\t\tlabels: Record<number, string>;\n\t\tpropertyName: TPropertyName;\n\t\tnameToValue?: ( name: string ) => string;\n\t\tdefaultValue?: string;\n\t}\n): void {\n\tconst { view, icons, toolbar, labels, propertyName, nameToValue, defaultValue } = options;\n\tfor ( const name in labels ) {\n\t\tconst button = new ButtonView( view.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel: labels[ name ],\n\t\t\ticon: icons[ name ],\n\t\t\ttooltip: labels[ name ]\n\t\t} );\n\n\t\t// If specified the `nameToValue()` callback, map the value based on the option's name.\n\t\tconst buttonValue = nameToValue ? nameToValue( name ) : name;\n\n\t\tbutton.bind( 'isOn' ).to( view, propertyName, value => {\n\t\t\t// `value` comes from `view[ propertyName ]`.\n\t\t\tlet valueToCompare: unknown = value;\n\n\t\t\t// If it's empty, and the `defaultValue` is specified, use it instead.\n\t\t\tif ( value === '' && defaultValue ) {\n\t\t\t\tvalueToCompare = defaultValue;\n\t\t\t}\n\n\t\t\treturn buttonValue === valueToCompare;\n\t\t} );\n\n\t\tbutton.on( 'execute', () => {\n\t\t\tview[ propertyName ] = buttonValue as any;\n\t\t} );\n\n\t\ttoolbar.items.add( button );\n\t}\n}\n\n/**\n * A default color palette used by various user interfaces related to tables, for instance,\n * by {@link module:table/tablecellproperties/tablecellpropertiesui~TableCellPropertiesUI} or\n * {@link module:table/tableproperties/tablepropertiesui~TablePropertiesUI}.\n *\n * The color palette follows the {@link module:table/tableconfig~TableColorConfig table color configuration format}\n * and contains the following color definitions:\n *\n * ```ts\n * const defaultColors = [\n *   {\n *     color: 'hsl(0, 0%, 0%)',\n *     label: 'Black'\n *   },\n *   {\n *     color: 'hsl(0, 0%, 30%)',\n *     label: 'Dim grey'\n *   },\n *   {\n *     color: 'hsl(0, 0%, 60%)',\n *     label: 'Grey'\n *   },\n *   {\n *     color: 'hsl(0, 0%, 90%)',\n *     label: 'Light grey'\n *   },\n *   {\n *     color: 'hsl(0, 0%, 100%)',\n *     label: 'White',\n *     hasBorder: true\n *   },\n *   {\n *     color: 'hsl(0, 75%, 60%)',\n *     label: 'Red'\n *   },\n *   {\n *     color: 'hsl(30, 75%, 60%)',\n *     label: 'Orange'\n *   },\n *   {\n *     color: 'hsl(60, 75%, 60%)',\n *     label: 'Yellow'\n *   },\n *   {\n *     color: 'hsl(90, 75%, 60%)',\n *     label: 'Light green'\n *   },\n *   {\n *     color: 'hsl(120, 75%, 60%)',\n *     label: 'Green'\n *   },\n *   {\n *     color: 'hsl(150, 75%, 60%)',\n *     label: 'Aquamarine'\n *   },\n *   {\n *     color: 'hsl(180, 75%, 60%)',\n *     label: 'Turquoise'\n *   },\n *   {\n *     color: 'hsl(210, 75%, 60%)',\n *     label: 'Light blue'\n *   },\n *   {\n *     color: 'hsl(240, 75%, 60%)',\n *     label: 'Blue'\n *   },\n *   {\n *     color: 'hsl(270, 75%, 60%)',\n *     label: 'Purple'\n *   }\n * ];\n * ```\n */\nexport const defaultColors: Array<ColorOption> = [\n\t{\n\t\tcolor: 'hsl(0, 0%, 0%)',\n\t\tlabel: 'Black'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 30%)',\n\t\tlabel: 'Dim grey'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 60%)',\n\t\tlabel: 'Grey'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 90%)',\n\t\tlabel: 'Light grey'\n\t},\n\t{\n\t\tcolor: 'hsl(0, 0%, 100%)',\n\t\tlabel: 'White',\n\t\thasBorder: true\n\t},\n\t{\n\t\tcolor: 'hsl(0, 75%, 60%)',\n\t\tlabel: 'Red'\n\t},\n\t{\n\t\tcolor: 'hsl(30, 75%, 60%)',\n\t\tlabel: 'Orange'\n\t},\n\t{\n\t\tcolor: 'hsl(60, 75%, 60%)',\n\t\tlabel: 'Yellow'\n\t},\n\t{\n\t\tcolor: 'hsl(90, 75%, 60%)',\n\t\tlabel: 'Light green'\n\t},\n\t{\n\t\tcolor: 'hsl(120, 75%, 60%)',\n\t\tlabel: 'Green'\n\t},\n\t{\n\t\tcolor: 'hsl(150, 75%, 60%)',\n\t\tlabel: 'Aquamarine'\n\t},\n\t{\n\t\tcolor: 'hsl(180, 75%, 60%)',\n\t\tlabel: 'Turquoise'\n\t},\n\t{\n\t\tcolor: 'hsl(210, 75%, 60%)',\n\t\tlabel: 'Light blue'\n\t},\n\t{\n\t\tcolor: 'hsl(240, 75%, 60%)',\n\t\tlabel: 'Blue'\n\t},\n\t{\n\t\tcolor: 'hsl(270, 75%, 60%)',\n\t\tlabel: 'Purple'\n\t}\n];\n\n/**\n * Returns a creator for a color input with a label.\n *\n * For given options, it returns a function that creates an instance of a\n * {@link module:table/ui/colorinputview~ColorInputView color input} logically related to\n * a {@link module:ui/labeledfield/labeledfieldview~LabeledFieldView labeled view} in the DOM.\n *\n * The helper does the following:\n *\n * * It sets the color input `id` and `ariaDescribedById` attributes.\n * * It binds the color input `isReadOnly` to the labeled view.\n * * It binds the color input `hasError` to the labeled view.\n * * It enables a logic that cleans up the error when the user starts typing in the color input.\n *\n * Usage:\n *\n * ```ts\n * const colorInputCreator = getLabeledColorInputCreator( {\n *   colorConfig: [ ... ],\n *   columns: 3,\n * } );\n *\n * const labeledInputView = new LabeledFieldView( locale, colorInputCreator );\n * console.log( labeledInputView.view ); // A color input instance.\n * ```\n *\n * @internal\n * @param options Color input options.\n * @param options.colorConfig The configuration of the color palette displayed in the input's dropdown.\n * @param options.columns The configuration of the number of columns the color palette consists of in the input's dropdown.\n * @param options.defaultColorValue If specified, the color input view will replace the \"Remove color\" button with\n * the \"Restore default\" button. Instead of clearing the input field, the default color value will be set.\n */\nexport function getLabeledColorInputCreator(\n\toptions: {\n\t\tcolorConfig: Array<NormalizedColorOption>;\n\t\tcolumns: number;\n\t\tdefaultColorValue?: string;\n\t}\n) {\n\treturn ( labeledFieldView: LabeledFieldView, viewUid: string, statusUid: string ): ColorInputView => {\n\t\tconst colorInputView = new ColorInputView( labeledFieldView.locale!, {\n\t\t\tcolorDefinitions: colorConfigToColorGridDefinitions( options.colorConfig ),\n\t\t\tcolumns: options.columns,\n\t\t\tdefaultColorValue: options.defaultColorValue\n\t\t} );\n\n\t\tcolorInputView.inputView.set( {\n\t\t\tid: viewUid,\n\t\t\tariaDescribedById: statusUid\n\t\t} );\n\n\t\tcolorInputView.bind( 'isReadOnly' ).to( labeledFieldView, 'isEnabled', value => !value );\n\t\tcolorInputView.bind( 'hasError' ).to( labeledFieldView, 'errorText', value => !!value );\n\n\t\tcolorInputView.on( 'input', () => {\n\t\t\t// UX: Make the error text disappear and disable the error indicator as the user\n\t\t\t// starts fixing the errors.\n\t\t\tlabeledFieldView.errorText = null;\n\t\t} );\n\n\t\tlabeledFieldView.bind( 'isEmpty', 'isFocused' ).to( colorInputView );\n\n\t\treturn colorInputView;\n\t};\n}\n\n/**\n * A simple helper method to detect number strings.\n * I allows full number notation, so omitting 0 is not allowed:\n */\nfunction isNumberString( value: string ) {\n\tconst parsedValue = parseFloat( value );\n\n\treturn !Number.isNaN( parsedValue ) && value === String( parsedValue );\n}\n\nfunction colorConfigToColorGridDefinitions( colorConfig: Array<NormalizedColorOption> ) {\n\treturn colorConfig.map( item => ( {\n\t\tcolor: item.model,\n\t\tlabel: item.label,\n\t\toptions: {\n\t\t\thasBorder: item.hasBorder\n\t\t}\n\t} ) );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./formrow.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/ui/formrowview\n */\n\nimport { View, type LabelView, type ViewCollection } from 'ckeditor5/src/ui';\nimport type { Locale } from 'ckeditor5/src/utils';\n\nimport '../../theme/formrow.css';\n\n/**\n * The class representing a single row in a complex form,\n * used by {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView}.\n *\n * **Note**: For now this class is private. When more use cases arrive (beyond ckeditor5-table),\n * it will become a component in ckeditor5-ui.\n *\n * @internal\n */\nexport default class FormRowView extends View {\n\t/**\n\t * An additional CSS class added to the {@link #element}.\n\t *\n\t * @observable\n\t */\n\tpublic declare class: string | null;\n\n\t/**\n\t * A collection of row items (buttons, dropdowns, etc.).\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * The role property reflected by the `role` DOM attribute of the {@link #element}.\n\t *\n\t * **Note**: Used only when a `labelView` is passed to constructor `options`.\n\t *\n\t * @observable\n\t * @internal\n\t */\n\tpublic declare _role: string | null;\n\n\t/**\n\t * The ARIA property reflected by the `aria-labelledby` DOM attribute of the {@link #element}.\n\t *\n\t * **Note**: Used only when a `labelView` is passed to constructor `options`.\n\t *\n\t * @observable\n\t * @internal\n\t */\n\tpublic declare _ariaLabelledBy: string | null;\n\n\t/**\n\t * Creates an instance of the form row class.\n\t *\n\t * @param locale The locale instance.\n\t * @param options.labelView When passed, the row gets the `group` and `aria-labelledby`\n\t * DOM attributes and gets described by the label.\n\t */\n\tconstructor( locale: Locale, options: { children?: Array<View>; class?: string; labelView?: LabelView } = {} ) {\n\t\tsuper( locale );\n\n\t\tconst bind = this.bindTemplate;\n\n\t\tthis.set( 'class', options.class || null );\n\t\tthis.children = this.createCollection();\n\n\t\tif ( options.children ) {\n\t\t\toptions.children.forEach( child => this.children.add( child ) );\n\t\t}\n\n\t\tthis.set( '_role', null );\n\t\tthis.set( '_ariaLabelledBy', null );\n\n\t\tif ( options.labelView ) {\n\t\t\tthis.set( {\n\t\t\t\t_role: 'group',\n\t\t\t\t_ariaLabelledBy: options.labelView.id\n\t\t\t} );\n\t\t}\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form__row',\n\t\t\t\t\tbind.to( 'class' )\n\t\t\t\t],\n\t\t\t\trole: bind.to( '_role' ),\n\t\t\t\t'aria-labelledby': bind.to( '_ariaLabelledBy' )\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./form.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tableproperties.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/ui/tablepropertiesview\n */\n\nimport {\n\taddListToDropdown,\n\tButtonView,\n\tcreateLabeledDropdown,\n\tcreateLabeledInputText,\n\tFocusCycler,\n\tFormHeaderView,\n\tLabeledFieldView,\n\tLabelView,\n\tsubmitHandler,\n\tToolbarView,\n\tView,\n\tViewCollection,\n\ttype DropdownView,\n\ttype InputTextView,\n\ttype NormalizedColorOption\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler, type ObservableChangeEvent, type Locale } from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport {\n\tfillToolbar,\n\tgetBorderStyleDefinitions,\n\tgetBorderStyleLabels,\n\tgetLabeledColorInputCreator\n} from '../../utils/ui/table-properties';\nimport FormRowView from '../../ui/formrowview';\n\nimport '../../../theme/form.css';\nimport '../../../theme/tableform.css';\nimport '../../../theme/tableproperties.css';\nimport type ColorInputView from '../../ui/colorinputview';\nimport type { TablePropertiesOptions } from '../../tableconfig';\n\nconst ALIGNMENT_ICONS = {\n\tleft: icons.objectLeft,\n\tcenter: icons.objectCenter,\n\tright: icons.objectRight\n};\n\n/**\n * Additional configuration of the view.\n */\nexport interface TablePropertiesViewOptions {\n\n\t/**\n\t * A configuration of the border color palette used by the\n\t * {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView#borderColorInput}.\n\t */\n\tborderColors: Array<NormalizedColorOption>;\n\n\t/**\n\t * A configuration of the background color palette used by the\n\t * {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView#backgroundInput}.\n\t */\n\tbackgroundColors: Array<NormalizedColorOption>;\n\n\t/**\n\t * The default table properties.\n\t */\n\tdefaultTableProperties: TablePropertiesOptions;\n}\n\n/**\n * The class representing a table properties form, allowing users to customize\n * certain style aspects of a table, for instance, border, background color, alignment, etc..\n */\nexport default class TablePropertiesView extends View {\n\t/**\n\t * The value of the border style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public borderStyle: string;\n\n\t/**\n\t * The value of the border width style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public borderWidth: string;\n\n\t/**\n\t * The value of the border color style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public borderColor: string;\n\n\t/**\n\t * The value of the background color style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public backgroundColor: string;\n\n\t/**\n\t * The value of the table width style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public width: string;\n\n\t/**\n\t * The value of the table height style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public height: string;\n\n\t/**\n\t * The value of the table alignment style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tdeclare public alignment: string;\n\n\t/**\n\t * Options passed to the view. See {@link #constructor} to learn more.\n\t */\n\tpublic readonly options: TablePropertiesViewOptions;\n\n\t/**\n\t * Tracks information about the DOM focus in the form.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * A collection of child views in the form.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * A dropdown that allows selecting the style of the table border.\n\t */\n\tpublic readonly borderStyleDropdown: LabeledFieldView<DropdownView>;\n\n\t/**\n\t * An input that allows specifying the width of the table border.\n\t */\n\tpublic readonly borderWidthInput: LabeledFieldView<InputTextView>;\n\n\t/**\n\t * An input that allows specifying the color of the table border.\n\t */\n\tpublic readonly borderColorInput: LabeledFieldView<ColorInputView>;\n\n\t/**\n\t * An input that allows specifying the table background color.\n\t */\n\tpublic readonly backgroundInput: LabeledFieldView<ColorInputView>;\n\n\t/**\n\t * An input that allows specifying the table width.\n\t */\n\tpublic readonly widthInput: LabeledFieldView<InputTextView>;\n\n\t/**\n\t * An input that allows specifying the table height.\n\t */\n\tpublic readonly heightInput: LabeledFieldView<InputTextView>;\n\n\t/**\n\t * A toolbar with buttons that allow changing the alignment of an entire table.\n\t */\n\tpublic readonly alignmentToolbar: ToolbarView;\n\n\t/**\n\t * The \"Save\" button view.\n\t */\n\tpublic saveButtonView: ButtonView;\n\n\t/**\n\t * The \"Cancel\" button view.\n\t */\n\tpublic cancelButtonView: ButtonView;\n\n\t/**\n\t * A collection of views that can be focused in the form.\n\t */\n\tprotected readonly _focusables: ViewCollection;\n\n\t/**\n\t * Helps cycling over {@link #_focusables} in the form.\n\t */\n\tprotected readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param options Additional configuration of the view.\n\t */\n\tconstructor( locale: Locale, options: TablePropertiesViewOptions ) {\n\t\tsuper( locale );\n\n\t\tthis.set( {\n\t\t\tborderStyle: '',\n\t\t\tborderWidth: '',\n\t\t\tborderColor: '',\n\t\t\tbackgroundColor: '',\n\t\t\twidth: '',\n\t\t\theight: '',\n\t\t\talignment: ''\n\t\t} );\n\n\t\tthis.options = options;\n\n\t\tconst { borderStyleDropdown, borderWidthInput, borderColorInput, borderRowLabel } = this._createBorderFields();\n\t\tconst { backgroundRowLabel, backgroundInput } = this._createBackgroundFields();\n\t\tconst { widthInput, operatorLabel, heightInput, dimensionsLabel } = this._createDimensionFields();\n\t\tconst { alignmentToolbar, alignmentLabel } = this._createAlignmentFields();\n\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis.children = this.createCollection();\n\n\t\tthis.borderStyleDropdown = borderStyleDropdown;\n\t\tthis.borderWidthInput = borderWidthInput;\n\t\tthis.borderColorInput = borderColorInput;\n\t\tthis.backgroundInput = backgroundInput;\n\t\tthis.widthInput = widthInput;\n\t\tthis.heightInput = heightInput;\n\t\tthis.alignmentToolbar = alignmentToolbar;\n\n\t\t// Defer creating to make sure other fields are present and the Save button can\n\t\t// bind its #isEnabled to their error messages so there's no way to save unless all\n\t\t// fields are valid.\n\t\tconst { saveButtonView, cancelButtonView } = this._createActionButtons();\n\n\t\tthis.saveButtonView = saveButtonView;\n\t\tthis.cancelButtonView = cancelButtonView;\n\t\tthis._focusables = new ViewCollection();\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\t// Form header.\n\t\tthis.children.add( new FormHeaderView( locale, {\n\t\t\tlabel: this.t!( 'Table properties' )\n\t\t} ) );\n\n\t\t// Border row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: borderRowLabel,\n\t\t\tchildren: [\n\t\t\t\tborderRowLabel,\n\t\t\t\tborderStyleDropdown,\n\t\t\t\tborderColorInput,\n\t\t\t\tborderWidthInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__border-row'\n\t\t} ) );\n\n\t\t// Background row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: backgroundRowLabel,\n\t\t\tchildren: [\n\t\t\t\tbackgroundRowLabel,\n\t\t\t\tbackgroundInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__background-row'\n\t\t} ) );\n\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\t// Dimensions row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tlabelView: dimensionsLabel,\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tdimensionsLabel,\n\t\t\t\t\t\twidthInput,\n\t\t\t\t\t\toperatorLabel,\n\t\t\t\t\t\theightInput\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-form__dimensions-row'\n\t\t\t\t} ),\n\t\t\t\t// Alignment row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tlabelView: alignmentLabel,\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\talignmentLabel,\n\t\t\t\t\t\talignmentToolbar\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-properties-form__alignment-row'\n\t\t\t\t} )\n\t\t\t]\n\t\t} ) );\n\n\t\t// Action row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t],\n\t\t\tclass: 'ck-table-form__action-row'\n\t\t} ) );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form',\n\t\t\t\t\t'ck-table-form',\n\t\t\t\t\t'ck-table-properties-form'\n\t\t\t\t],\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Enable the \"submit\" event for this view. It can be triggered by the #saveButtonView\n\t\t// which is of the \"submit\" DOM \"type\".\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\t[\n\t\t\tthis.borderStyleDropdown,\n\t\t\tthis.borderColorInput,\n\t\t\tthis.borderColorInput!.fieldView.dropdownView.buttonView,\n\t\t\tthis.borderWidthInput,\n\t\t\tthis.backgroundInput,\n\t\t\tthis.backgroundInput!.fieldView.dropdownView.buttonView,\n\t\t\tthis.widthInput,\n\t\t\tthis.heightInput,\n\t\t\tthis.alignmentToolbar,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t].forEach( view => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( view! );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( view!.element! );\n\t\t} );\n\n\t\t// Mainly for closing using \"Esc\" and navigation using \"Tab\".\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist focusable field in the form.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #borderStyleDropdown},\n\t * * {@link #borderWidthInput},\n\t * * {@link #borderColorInput}.\n\t */\n\tprivate _createBorderFields() {\n\t\tconst defaultTableProperties = this.options.defaultTableProperties;\n\t\tconst defaultBorder = {\n\t\t\tstyle: defaultTableProperties.borderStyle,\n\t\t\twidth: defaultTableProperties.borderWidth,\n\t\t\tcolor: defaultTableProperties.borderColor\n\t\t};\n\n\t\tconst colorInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.borderColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: defaultBorder.color\n\t\t} );\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst borderRowLabel = new LabelView( locale );\n\t\tborderRowLabel.text = t( 'Border' );\n\n\t\t// -- Style ---------------------------------------------------\n\n\t\tconst styleLabels = getBorderStyleLabels( t );\n\t\tconst borderStyleDropdown = new LabeledFieldView( locale, createLabeledDropdown );\n\t\tborderStyleDropdown.set( {\n\t\t\tlabel: t( 'Style' ),\n\t\t\tclass: 'ck-table-form__border-style'\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.set( {\n\t\t\tisOn: false,\n\t\t\twithText: true,\n\t\t\ttooltip: t( 'Style' )\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.bind( 'label' ).to( this, 'borderStyle', value => {\n\t\t\treturn styleLabels[ value ? value : 'none' ];\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.on( 'execute', evt => {\n\t\t\tthis.borderStyle = ( evt.source as any )._borderStyleValue;\n\t\t} );\n\n\t\tborderStyleDropdown.bind( 'isEmpty' ).to( this, 'borderStyle', value => !value );\n\n\t\taddListToDropdown( borderStyleDropdown.fieldView, getBorderStyleDefinitions( this, defaultBorder.style! ) );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst borderWidthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\tborderWidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__border-width'\n\t\t} );\n\n\t\tborderWidthInput.fieldView.bind( 'value' ).to( this, 'borderWidth' );\n\t\tborderWidthInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\t\tborderWidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderWidth = borderWidthInput.fieldView.element!.value;\n\t\t} );\n\n\t\t// -- Color ---------------------------------------------------\n\n\t\tconst borderColorInput = new LabeledFieldView( locale, colorInputCreator );\n\n\t\tborderColorInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-form__border-color'\n\t\t} );\n\n\t\tborderColorInput.fieldView.bind( 'value' ).to( this, 'borderColor' );\n\t\tborderColorInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\n\t\tborderColorInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderColor = borderColorInput.fieldView.value;\n\t\t} );\n\n\t\t// Reset the border color and width fields depending on the `border-style` value.\n\t\tthis.on<ObservableChangeEvent<string>>( 'change:borderStyle', ( evt, name, newValue, oldValue ) => {\n\t\t\t// When removing the border (`border-style:none`), clear the remaining `border-*` properties.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5/issues/6227.\n\t\t\tif ( !isBorderStyleSet( newValue ) ) {\n\t\t\t\tthis.borderColor = '';\n\t\t\t\tthis.borderWidth = '';\n\t\t\t}\n\n\t\t\t// When setting the `border-style` from `none`, set the default `border-color` and `border-width` properties.\n\t\t\tif ( !isBorderStyleSet( oldValue ) ) {\n\t\t\t\tthis.borderColor = defaultBorder.color!;\n\t\t\t\tthis.borderWidth = defaultBorder.width!;\n\t\t\t}\n\t\t} );\n\n\t\treturn {\n\t\t\tborderRowLabel,\n\t\t\tborderStyleDropdown,\n\t\t\tborderColorInput,\n\t\t\tborderWidthInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #backgroundInput}.\n\t */\n\tprivate _createBackgroundFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst backgroundRowLabel = new LabelView( locale );\n\t\tbackgroundRowLabel.text = t( 'Background' );\n\n\t\t// -- Background color input -----------------------------------\n\n\t\tconst backgroundInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.backgroundColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: this.options.defaultTableProperties.backgroundColor\n\t\t} );\n\n\t\tconst backgroundInput = new LabeledFieldView( locale, backgroundInputCreator );\n\n\t\tbackgroundInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-properties-form__background'\n\t\t} );\n\n\t\tbackgroundInput.fieldView.bind( 'value' ).to( this, 'backgroundColor' );\n\t\tbackgroundInput.fieldView.on( 'input', () => {\n\t\t\tthis.backgroundColor = backgroundInput.fieldView.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tbackgroundRowLabel,\n\t\t\tbackgroundInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #widthInput},\n\t * * {@link #heightInput}.\n\t */\n\tprivate _createDimensionFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\t// -- Label ---------------------------------------------------\n\n\t\tconst dimensionsLabel = new LabelView( locale );\n\t\tdimensionsLabel.text = t( 'Dimensions' );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst widthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\twidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__width'\n\t\t} );\n\n\t\twidthInput.fieldView.bind( 'value' ).to( this, 'width' );\n\t\twidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.width = widthInput.fieldView.element!.value;\n\t\t} );\n\n\t\t// -- Operator ---------------------------------------------------\n\n\t\tconst operatorLabel = new View( locale );\n\t\toperatorLabel.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-table-form__dimension-operator'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{ text: '×' }\n\t\t\t]\n\t\t} );\n\n\t\t// -- Height ---------------------------------------------------\n\n\t\tconst heightInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\theightInput.set( {\n\t\t\tlabel: t( 'Height' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__height'\n\t\t} );\n\n\t\theightInput.fieldView.bind( 'value' ).to( this, 'height' );\n\t\theightInput.fieldView.on( 'input', () => {\n\t\t\tthis.height = heightInput.fieldView.element!.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tdimensionsLabel,\n\t\t\twidthInput,\n\t\t\toperatorLabel,\n\t\t\theightInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #alignmentToolbar}.\n\t */\n\tprivate _createAlignmentFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\t// -- Label ---------------------------------------------------\n\n\t\tconst alignmentLabel = new LabelView( locale );\n\t\talignmentLabel.text = t( 'Alignment' );\n\n\t\t// -- Toolbar ---------------------------------------------------\n\n\t\tconst alignmentToolbar = new ToolbarView( locale! );\n\t\talignmentToolbar.set( {\n\t\t\tisCompact: true,\n\t\t\tariaLabel: t( 'Table alignment toolbar' )\n\t\t} );\n\n\t\tfillToolbar( {\n\t\t\tview: this,\n\t\t\ticons: ALIGNMENT_ICONS,\n\t\t\ttoolbar: alignmentToolbar,\n\t\t\tlabels: this._alignmentLabels,\n\t\t\tpropertyName: 'alignment',\n\t\t\tdefaultValue: this.options.defaultTableProperties.alignment!\n\t\t} );\n\n\t\treturn {\n\t\t\talignmentLabel,\n\t\t\talignmentToolbar\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form controls:\n\t *\n\t * * {@link #saveButtonView},\n\t * * {@link #cancelButtonView}.\n\t */\n\tprivate _createActionButtons() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\tconst saveButtonView = new ButtonView( locale );\n\t\tconst cancelButtonView = new ButtonView( locale );\n\t\tconst fieldsThatShouldValidateToSave = [\n\t\t\tthis.borderWidthInput!,\n\t\t\tthis.borderColorInput!,\n\t\t\tthis.backgroundInput!,\n\t\t\tthis.widthInput!,\n\t\t\tthis.heightInput!\n\t\t];\n\n\t\tsaveButtonView.set( {\n\t\t\tlabel: t( 'Save' ),\n\t\t\ticon: icons.check,\n\t\t\tclass: 'ck-button-save',\n\t\t\ttype: 'submit',\n\t\t\twithText: true\n\t\t} );\n\n\t\tsaveButtonView.bind( 'isEnabled' ).toMany( fieldsThatShouldValidateToSave, 'errorText', ( ...errorTexts ) => {\n\t\t\treturn errorTexts.every( errorText => !errorText );\n\t\t} );\n\n\t\tcancelButtonView.set( {\n\t\t\tlabel: t( 'Cancel' ),\n\t\t\ticon: icons.cancel,\n\t\t\tclass: 'ck-button-cancel',\n\t\t\twithText: true\n\t\t} );\n\n\t\tcancelButtonView.delegate( 'execute' ).to( this, 'cancel' );\n\n\t\treturn {\n\t\t\tsaveButtonView, cancelButtonView\n\t\t};\n\t}\n\n\t/**\n\t * Provides localized labels for {@link #alignmentToolbar} buttons.\n\t */\n\tprivate get _alignmentLabels() {\n\t\tconst locale = this.locale!;\n\t\tconst t = this.t!;\n\n\t\tconst left = t( 'Align table to the left' );\n\t\tconst center = t( 'Center table' );\n\t\tconst right = t( 'Align table to the right' );\n\n\t\t// Returns object with a proper order of labels.\n\t\tif ( locale.uiLanguageDirection === 'rtl' ) {\n\t\t\treturn { right, center, left };\n\t\t} else {\n\t\t\treturn { left, center, right };\n\t\t}\n\t}\n}\n\nfunction isBorderStyleSet( value: string ) {\n\treturn value !== 'none';\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M8 2v5h4V2h1v5h5v1h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5H7v-5H2v-1h5V8H2V7h5V2h1zm4 6H8v4h4V8z\\\" opacity=\\\".6\\\"/><path d=\\\"m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM17 1a2 2 0 0 1 2 2v9.475l-.85-.124-.857-1.736a2.048 2.048 0 0 0-.292-.44L17 3H3v14h7.808l.402.392L10.935 19H3a2 2 0 0 1-2-2V3a2 2 0 0 1 2-2h14z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/utils/ui/contextualballoon\n */\n\nimport { Rect, type PositionOptions } from 'ckeditor5/src/utils';\nimport { BalloonPanelView, type ContextualBalloon } from 'ckeditor5/src/ui';\n\nimport { getTableWidgetAncestor } from './widget';\nimport type { Editor } from 'ckeditor5/src/core';\nimport type { Element, Position, Range } from 'ckeditor5/src/engine';\n\nconst DEFAULT_BALLOON_POSITIONS = BalloonPanelView.defaultPositions;\n\nconst BALLOON_POSITIONS = [\n\tDEFAULT_BALLOON_POSITIONS.northArrowSouth,\n\tDEFAULT_BALLOON_POSITIONS.northArrowSouthWest,\n\tDEFAULT_BALLOON_POSITIONS.northArrowSouthEast,\n\tDEFAULT_BALLOON_POSITIONS.southArrowNorth,\n\tDEFAULT_BALLOON_POSITIONS.southArrowNorthWest,\n\tDEFAULT_BALLOON_POSITIONS.southArrowNorthEast,\n\tDEFAULT_BALLOON_POSITIONS.viewportStickyNorth\n];\n\n/**\n * A helper utility that positions the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} instance\n * with respect to the table in the editor content, if one is selected.\n *\n * @param editor The editor instance.\n * @param target Either \"cell\" or \"table\". Determines the target the balloon will be attached to.\n */\nexport function repositionContextualBalloon( editor: Editor, target: string ): void {\n\tconst balloon: ContextualBalloon = editor.plugins.get( 'ContextualBalloon' );\n\n\tif ( getTableWidgetAncestor( editor.editing.view.document.selection ) ) {\n\t\tlet position;\n\n\t\tif ( target === 'cell' ) {\n\t\t\tposition = getBalloonCellPositionData( editor );\n\t\t} else {\n\t\t\tposition = getBalloonTablePositionData( editor );\n\t\t}\n\n\t\tballoon.updatePosition( position );\n\t}\n}\n\n/**\n * Returns the positioning options that control the geometry of the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} with respect\n * to the selected table in the editor content.\n *\n * @param editor The editor instance.\n */\nexport function getBalloonTablePositionData( editor: Editor ): Partial<PositionOptions> {\n\tconst firstPosition = editor.model.document.selection.getFirstPosition()!;\n\tconst modelTable = firstPosition.findAncestor( 'table' )!;\n\tconst viewTable = editor.editing.mapper.toViewElement( modelTable )!;\n\n\treturn {\n\t\ttarget: editor.editing.view.domConverter.mapViewToDom( viewTable )!,\n\t\tpositions: BALLOON_POSITIONS\n\t};\n}\n\n/**\n * Returns the positioning options that control the geometry of the\n * {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon} with respect\n * to the selected table cell in the editor content.\n *\n * @param editor The editor instance.\n */\nexport function getBalloonCellPositionData( editor: Editor ): Partial<PositionOptions> {\n\tconst mapper = editor.editing.mapper;\n\tconst domConverter = editor.editing.view.domConverter;\n\tconst selection = editor.model.document.selection;\n\n\tif ( selection.rangeCount > 1 ) {\n\t\treturn {\n\t\t\ttarget: () => createBoundingRect( selection.getRanges(), editor ),\n\t\t\tpositions: BALLOON_POSITIONS\n\t\t};\n\t}\n\n\tconst modelTableCell = getTableCellAtPosition( selection.getFirstPosition()! );\n\tconst viewTableCell = mapper.toViewElement( modelTableCell )!;\n\n\treturn {\n\t\ttarget: domConverter.mapViewToDom( viewTableCell ),\n\t\tpositions: BALLOON_POSITIONS\n\t};\n}\n\n/**\n * Returns the first selected table cell from a multi-cell or in-cell selection.\n *\n * @param position Document position.\n */\nfunction getTableCellAtPosition( position: Position ): Element {\n\tconst isTableCellSelected = position.nodeAfter && position.nodeAfter.is( 'element', 'tableCell' );\n\n\treturn isTableCellSelected ? position.nodeAfter : position.findAncestor( 'tableCell' )!;\n}\n\n/**\n * Returns bounding rectangle for given model ranges.\n *\n * @param ranges Model ranges that the bounding rect should be returned for.\n * @param editor The editor instance.\n */\nfunction createBoundingRect( ranges: Iterable<Range>, editor: Editor ): Rect {\n\tconst mapper = editor.editing.mapper;\n\tconst domConverter = editor.editing.view.domConverter;\n\tconst rects = Array.from( ranges ).map( range => {\n\t\tconst modelTableCell = getTableCellAtPosition( range.start );\n\t\tconst viewTableCell = mapper.toViewElement( modelTableCell )!;\n\t\treturn new Rect( domConverter.mapViewToDom( viewTableCell )! );\n\t} );\n\n\treturn Rect.getBoundingRect( rects )!;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties/tablepropertiesui\n */\n\nimport { type Editor, Plugin } from 'ckeditor5/src/core';\nimport {\n\tButtonView,\n\tContextualBalloon,\n\tclickOutsideHandler,\n\tgetLocalizedColorOptions,\n\tnormalizeColorOptions,\n\ttype LabeledFieldView\n} from 'ckeditor5/src/ui';\n\nimport { debounce } from 'lodash-es';\n\nimport TablePropertiesView from './ui/tablepropertiesview';\nimport tableProperties from './../../theme/icons/table-properties.svg';\nimport {\n\tcolorFieldValidator,\n\tgetLocalizedColorErrorText,\n\tgetLocalizedLengthErrorText,\n\tlengthFieldValidator,\n\tlineWidthFieldValidator,\n\tdefaultColors\n} from '../utils/ui/table-properties';\nimport { getTableWidgetAncestor } from '../utils/ui/widget';\nimport { getBalloonTablePositionData, repositionContextualBalloon } from '../utils/ui/contextualballoon';\nimport { getNormalizedDefaultProperties, type NormalizedDefaultProperties } from '../utils/table-properties';\nimport type { Batch } from 'ckeditor5/src/engine';\nimport type { EventInfo, ObservableChangeEvent } from 'ckeditor5/src/utils';\n\nimport type TableBorderStyleCommand from './commands/tableborderstylecommand';\n\nconst ERROR_TEXT_TIMEOUT = 500;\n\n// Map of view properties and related commands.\nconst propertyToCommandMap = {\n\tborderStyle: 'tableBorderStyle',\n\tborderColor: 'tableBorderColor',\n\tborderWidth: 'tableBorderWidth',\n\tbackgroundColor: 'tableBackgroundColor',\n\twidth: 'tableWidth',\n\theight: 'tableHeight',\n\talignment: 'tableAlignment'\n};\n\n/**\n * The table properties UI plugin. It introduces the `'tableProperties'` button\n * that opens a form allowing to specify visual styling of an entire table.\n *\n * It uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n */\nexport default class TablePropertiesUI extends Plugin {\n\t/**\n\t * The default table properties.\n\t */\n\tprivate _defaultTableProperties!: NormalizedDefaultProperties;\n\n\t/**\n\t * The contextual balloon plugin instance.\n\t */\n\tprivate _balloon!: ContextualBalloon;\n\n\t/**\n\t * The properties form view displayed inside the balloon.\n\t */\n\tpublic view: TablePropertiesView | null = null;\n\n\t/**\n\t * The batch used to undo all changes made by the form (which are live, as the user types)\n\t * when \"Cancel\" was pressed. Each time the view is shown, a new batch is created.\n\t */\n\tprivate _undoStepBatch?: Batch;\n\n\t/**\n\t * Flag used to indicate whether view is ready to execute update commands\n\t * (it finished loading initial data).\n\t */\n\tprivate _isReady?: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ContextualBalloon ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TablePropertiesUI' {\n\t\treturn 'TablePropertiesUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'table.tableProperties', {\n\t\t\tborderColors: defaultColors,\n\t\t\tbackgroundColors: defaultColors\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tthis._defaultTableProperties = getNormalizedDefaultProperties( editor.config.get( 'table.tableProperties.defaultProperties' )!, {\n\t\t\tincludeAlignmentProperty: true\n\t\t} );\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\teditor.ui.componentFactory.add( 'tableProperties', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Table properties' ),\n\t\t\t\ticon: tableProperties,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tthis.listenTo( view, 'execute', () => this._showView() );\n\n\t\t\tconst commands = Object.values( propertyToCommandMap )\n\t\t\t\t.map( commandName => editor.commands.get( commandName )! );\n\n\t\t\tview.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => (\n\t\t\t\tareEnabled.some( isCommandEnabled => isCommandEnabled )\n\t\t\t) );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1341.\n\t\tif ( this.view ) {\n\t\t\tthis.view.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Creates the {@link module:table/tableproperties/ui/tablepropertiesview~TablePropertiesView} instance.\n\t *\n\t * @returns The table properties form view instance.\n\t */\n\tprivate _createPropertiesView() {\n\t\tconst editor = this.editor;\n\t\tconst config = editor.config.get( 'table.tableProperties' )!;\n\t\tconst borderColorsConfig = normalizeColorOptions( config.borderColors! );\n\t\tconst localizedBorderColors = getLocalizedColorOptions( editor.locale, borderColorsConfig );\n\t\tconst backgroundColorsConfig = normalizeColorOptions( config.backgroundColors! );\n\t\tconst localizedBackgroundColors = getLocalizedColorOptions( editor.locale, backgroundColorsConfig );\n\n\t\tconst view = new TablePropertiesView( editor.locale, {\n\t\t\tborderColors: localizedBorderColors,\n\t\t\tbackgroundColors: localizedBackgroundColors,\n\t\t\tdefaultTableProperties: this._defaultTableProperties\n\t\t} );\n\t\tconst t = editor.t;\n\n\t\t// Render the view so its #element is available for the clickOutsideHandler.\n\t\tview.render();\n\n\t\tthis.listenTo( view, 'submit', () => {\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\tthis.listenTo( view, 'cancel', () => {\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/6180\n\t\t\tif ( this._undoStepBatch!.operations.length ) {\n\t\t\t\teditor.execute( 'undo', this._undoStepBatch );\n\t\t\t}\n\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\t// Close the balloon on Esc key press.\n\t\tview.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideView();\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: view,\n\t\t\tactivator: () => this._isViewInBalloon,\n\t\t\tcontextElements: [ this._balloon.view.element! ],\n\t\t\tcallback: () => this._hideView()\n\t\t} );\n\n\t\tconst colorErrorText = getLocalizedColorErrorText( t );\n\t\tconst lengthErrorText = getLocalizedLengthErrorText( t );\n\n\t\t// Create the \"UI -> editor data\" binding.\n\t\t// These listeners update the editor data (via table commands) when any observable\n\t\t// property of the view has changed. They also validate the value and display errors in the UI\n\t\t// when necessary. This makes the view live, which means the changes are\n\t\t// visible in the editing as soon as the user types or changes fields' values.\n\t\tview.on<ObservableChangeEvent<string>>(\n\t\t\t'change:borderStyle',\n\t\t\tthis._getPropertyChangeCallback( 'tableBorderStyle' )\n\t\t);\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:borderColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderColorInput,\n\t\t\tcommandName: 'tableBorderColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:borderWidth', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderWidthInput,\n\t\t\tcommandName: 'tableBorderWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lineWidthFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:backgroundColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.backgroundInput,\n\t\t\tcommandName: 'tableBackgroundColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:width', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.widthInput,\n\t\t\tcommandName: 'tableWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:height', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.heightInput,\n\t\t\tcommandName: 'tableHeight',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>(\n\t\t\t'change:alignment',\n\t\t\tthis._getPropertyChangeCallback( 'tableAlignment' )\n\t\t);\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * In this method the \"editor data -> UI\" binding is happening.\n\t *\n\t * When executed, this method obtains selected table property values from various table commands\n\t * and passes them to the {@link #view}.\n\t *\n\t * This way, the UI stays up–to–date with the editor data.\n\t */\n\tprivate _fillViewFormFromCommandValues() {\n\t\tconst commands = this.editor.commands;\n\t\tconst borderStyleCommand: TableBorderStyleCommand = commands.get( 'tableBorderStyle' )!;\n\n\t\tObject.entries( propertyToCommandMap )\n\t\t\t.map( ( [ property, commandName ] ) => {\n\t\t\t\tconst propertyKey = property as keyof typeof propertyToCommandMap;\n\t\t\t\tconst defaultValue = this._defaultTableProperties[ propertyKey ] || '';\n\n\t\t\t\treturn [ propertyKey, ( commands.get( commandName )!.value || defaultValue ) as string ] as const;\n\t\t\t} )\n\t\t\t.forEach( ( [ property, value ] ) => {\n\t\t\t\t// Do not set the `border-color` and `border-width` fields if `border-style:none`.\n\t\t\t\tif ( ( property === 'borderColor' || property === 'borderWidth' ) && borderStyleCommand.value === 'none' ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis.view!.set( property, value );\n\t\t\t} );\n\n\t\tthis._isReady = true;\n\t}\n\n\t/**\n\t * Shows the {@link #view} in the {@link #_balloon}.\n\t *\n\t * **Note**: Each time a view is shown, the new {@link #_undoStepBatch} is created that contains\n\t * all changes made to the document when the view is visible, allowing a single undo step\n\t * for all of them.\n\t */\n\tprotected _showView(): void {\n\t\tconst editor = this.editor;\n\n\t\tif ( !this.view ) {\n\t\t\tthis.view = this._createPropertiesView();\n\t\t}\n\n\t\tthis.listenTo( editor.ui, 'update', () => {\n\t\t\tthis._updateView();\n\t\t} );\n\n\t\t// Update the view with the model values.\n\t\tthis._fillViewFormFromCommandValues();\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.view,\n\t\t\tposition: getBalloonTablePositionData( editor )\n\t\t} );\n\n\t\t// Create a new batch. Clicking \"Cancel\" will undo this batch.\n\t\tthis._undoStepBatch = editor.model.createBatch();\n\n\t\t// Basic a11y.\n\t\tthis.view.focus();\n\t}\n\n\t/**\n\t * Removes the {@link #view} from the {@link #_balloon}.\n\t */\n\tprotected _hideView(): void {\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\n\t\tthis._isReady = false;\n\n\t\t// Blur any input element before removing it from DOM to prevent issues in some browsers.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\tthis.view!.saveButtonView.focus();\n\n\t\tthis._balloon.remove( this.view! );\n\n\t\t// Make sure the focus is not lost in the process by putting it directly\n\t\t// into the editing view.\n\t\tthis.editor.editing.view.focus();\n\t}\n\n\t/**\n\t * Repositions the {@link #_balloon} or hides the {@link #view} if a table is no longer selected.\n\t */\n\tprotected _updateView(): void {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\tif ( !getTableWidgetAncestor( viewDocument.selection ) ) {\n\t\t\tthis._hideView();\n\t\t} else if ( this._isViewVisible ) {\n\t\t\trepositionContextualBalloon( editor, 'table' );\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is the visible in the {@link #_balloon}.\n\t */\n\tprivate get _isViewVisible(): boolean {\n\t\treturn !!this.view && this._balloon.visibleView === this.view;\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is in the {@link #_balloon}.\n\t */\n\tprivate get _isViewInBalloon(): boolean {\n\t\treturn !!this.view && this._balloon.hasView( this.view );\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon {@link #view view's} property change\n\t * executes a related editor command with the new property value.\n\t *\n\t * If new value will be set to the default value, the command will not be executed.\n\t *\n\t * @param commandName The command that will be executed.\n\t */\n\tprivate _getPropertyChangeCallback( commandName: 'tableBorderStyle' | 'tableAlignment' ) {\n\t\treturn ( evt: EventInfo, propertyName: string, newValue: string ) => {\n\t\t\t// Do not execute the command on initial call (opening the table properties view).\n\t\t\tif ( !this._isReady ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.execute( commandName, {\n\t\t\t\tvalue: newValue,\n\t\t\t\tbatch: this._undoStepBatch\n\t\t\t} );\n\t\t};\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon {@link #view view's} property change:\n\t * * executes a related editor command with the new property value if the value is valid,\n\t * * or sets the error text next to the invalid field, if the value did not pass the validation.\n\t */\n\tprivate _getValidatedPropertyChangeCallback(\n\t\toptions: {\n\t\t\tcommandName: 'tableBorderColor' | 'tableBorderWidth' | 'tableBackgroundColor' | 'tableWidth' | 'tableHeight';\n\t\t\tviewField: LabeledFieldView;\n\t\t\tvalidator: ( value: string ) => boolean;\n\t\t\terrorText: string;\n\t\t}\n\t) {\n\t\tconst { commandName, viewField, validator, errorText } = options;\n\t\tconst setErrorTextDebounced = debounce( () => {\n\t\t\tviewField.errorText = errorText;\n\t\t}, ERROR_TEXT_TIMEOUT );\n\n\t\treturn ( evt: EventInfo, propertyName: string, newValue: string ) => {\n\t\t\tsetErrorTextDebounced.cancel();\n\n\t\t\t// Do not execute the command on initial call (opening the table properties view).\n\t\t\tif ( !this._isReady ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( validator( newValue ) ) {\n\t\t\t\tthis.editor.execute( commandName, {\n\t\t\t\t\tvalue: newValue,\n\t\t\t\t\tbatch: this._undoStepBatch\n\t\t\t\t} );\n\n\t\t\t\tviewField.errorText = null;\n\t\t\t} else {\n\t\t\t\tsetErrorTextDebounced();\n\t\t\t}\n\t\t};\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tablecellproperties.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/ui/tablecellpropertiesview\n */\n\nimport {\n\taddListToDropdown,\n\tButtonView,\n\tcreateLabeledDropdown,\n\tcreateLabeledInputText,\n\tFocusCycler,\n\tFormHeaderView,\n\tLabeledFieldView,\n\tLabelView,\n\tsubmitHandler,\n\tToolbarView,\n\tView,\n\tViewCollection,\n\ttype FocusableView,\n\ttype NormalizedColorOption\n} from 'ckeditor5/src/ui';\nimport {\n\tKeystrokeHandler,\n\tFocusTracker,\n\ttype Locale,\n\ttype ObservableChangeEvent\n} from 'ckeditor5/src/utils';\nimport { icons } from 'ckeditor5/src/core';\n\nimport {\n\tfillToolbar,\n\tgetBorderStyleDefinitions,\n\tgetBorderStyleLabels,\n\tgetLabeledColorInputCreator\n} from '../../utils/ui/table-properties';\nimport FormRowView from '../../ui/formrowview';\nimport type ColorInputView from '../../ui/colorinputview';\nimport type { TableCellPropertiesOptions } from '../../tableconfig';\n\nimport '../../../theme/form.css';\nimport '../../../theme/tableform.css';\nimport '../../../theme/tablecellproperties.css';\n\nconst ALIGNMENT_ICONS = {\n\tleft: icons.alignLeft,\n\tcenter: icons.alignCenter,\n\tright: icons.alignRight,\n\tjustify: icons.alignJustify,\n\ttop: icons.alignTop,\n\tmiddle: icons.alignMiddle,\n\tbottom: icons.alignBottom\n};\n\nexport interface TableCellPropertiesViewOptions {\n\tborderColors: Array<NormalizedColorOption>;\n\tbackgroundColors: Array<NormalizedColorOption>;\n\tdefaultTableCellProperties: TableCellPropertiesOptions;\n}\n\n/**\n * The class representing a table cell properties form, allowing users to customize\n * certain style aspects of a table cell, for instance, border, padding, text alignment, etc..\n */\nexport default class TableCellPropertiesView extends View {\n\t/**\n\t * The value of the cell border style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare borderStyle: string;\n\n\t/**\n\t * The value of the cell border width style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare borderWidth: string;\n\n\t/**\n\t * The value of the cell border color style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare borderColor: string;\n\n\t/**\n\t * The value of the cell padding style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare padding: string;\n\n\t/**\n\t * The value of the cell background color style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare backgroundColor: string;\n\n\t/**\n\t * The value of the table cell width style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare width: string;\n\n\t/**\n\t * The value of the table cell height style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare height: string;\n\n\t/**\n\t * The value of the horizontal text alignment style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare horizontalAlignment: string;\n\n\t/**\n\t * The value of the vertical text alignment style.\n\t *\n\t * @observable\n\t * @default ''\n\t */\n\tpublic declare verticalAlignment: string;\n\n\t/**\n\t * Options passed to the view. See {@link #constructor} to learn more.\n\t */\n\tpublic readonly options: TableCellPropertiesViewOptions;\n\n\t/**\n\t * Tracks information about the DOM focus in the form.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * A collection of child views in the form.\n\t */\n\tpublic readonly children: ViewCollection;\n\n\t/**\n\t * A dropdown that allows selecting the style of the table cell border.\n\t */\n\tpublic readonly borderStyleDropdown: LabeledFieldView<FocusableView>;\n\n\t/**\n\t * An input that allows specifying the width of the table cell border.\n\t */\n\tpublic readonly borderWidthInput: LabeledFieldView<FocusableView>;\n\n\t/**\n\t * An input that allows specifying the color of the table cell border.\n\t */\n\tpublic readonly borderColorInput: LabeledFieldView<ColorInputView>;\n\n\t/**\n\t * An input that allows specifying the table cell background color.\n\t */\n\tpublic readonly backgroundInput: LabeledFieldView<ColorInputView>;\n\n\t/**\n\t * An input that allows specifying the table cell padding.\n\t */\n\tpublic readonly paddingInput: LabeledFieldView;\n\n\t/**\n\t * An input that allows specifying the table cell width.\n\t */\n\tpublic readonly widthInput: LabeledFieldView<FocusableView>;\n\n\t/**\n\t * An input that allows specifying the table cell height.\n\t */\n\tpublic readonly heightInput: LabeledFieldView<FocusableView>;\n\n\t/**\n\t * A toolbar with buttons that allow changing the horizontal text alignment in a table cell.\n\t */\n\tpublic readonly horizontalAlignmentToolbar: View<HTMLElement>;\n\n\t/**\n\t * A toolbar with buttons that allow changing the vertical text alignment in a table cell.\n\t */\n\tpublic readonly verticalAlignmentToolbar: View<HTMLElement>;\n\n\t/**\n\t * The \"Save\" button view.\n\t */\n\tpublic saveButtonView: ButtonView;\n\n\t/**\n\t * The \"Cancel\" button view.\n\t */\n\tpublic cancelButtonView: ButtonView;\n\n\t/**\n\t * A collection of views that can be focused in the form.\n\t */\n\tprotected readonly _focusables: ViewCollection;\n\n\t/**\n\t * Helps cycling over {@link #_focusables} in the form.\n\t */\n\tprotected readonly _focusCycler: FocusCycler;\n\n\t/**\n\t * @param locale The {@link module:core/editor/editor~Editor#locale} instance.\n\t * @param options Additional configuration of the view.\n\t * @param options.borderColors A configuration of the border color palette used by the\n\t * {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView#borderColorInput}.\n\t * @param options.backgroundColors A configuration of the background color palette used by the\n\t * {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView#backgroundInput}.\n\t * @param options.defaultTableCellProperties The default table cell properties.\n\t */\n\tconstructor( locale: Locale, options: TableCellPropertiesViewOptions ) {\n\t\tsuper( locale );\n\n\t\tthis.set( {\n\t\t\tborderStyle: '',\n\t\t\tborderWidth: '',\n\t\t\tborderColor: '',\n\t\t\tpadding: '',\n\t\t\tbackgroundColor: '',\n\t\t\twidth: '',\n\t\t\theight: '',\n\t\t\thorizontalAlignment: '',\n\t\t\tverticalAlignment: ''\n\t\t} );\n\n\t\tthis.options = options;\n\n\t\tconst { borderStyleDropdown, borderWidthInput, borderColorInput, borderRowLabel } = this._createBorderFields();\n\t\tconst { backgroundRowLabel, backgroundInput } = this._createBackgroundFields();\n\t\tconst { widthInput, operatorLabel, heightInput, dimensionsLabel } = this._createDimensionFields();\n\t\tconst { horizontalAlignmentToolbar, verticalAlignmentToolbar, alignmentLabel } = this._createAlignmentFields();\n\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis.children = this.createCollection();\n\t\tthis.borderStyleDropdown = borderStyleDropdown;\n\t\tthis.borderWidthInput = borderWidthInput;\n\t\tthis.borderColorInput = borderColorInput;\n\t\tthis.backgroundInput = backgroundInput;\n\t\tthis.paddingInput = this._createPaddingField();\n\t\tthis.widthInput = widthInput;\n\t\tthis.heightInput = heightInput;\n\t\tthis.horizontalAlignmentToolbar = horizontalAlignmentToolbar;\n\t\tthis.verticalAlignmentToolbar = verticalAlignmentToolbar;\n\n\t\t// Defer creating to make sure other fields are present and the Save button can\n\t\t// bind its #isEnabled to their error messages so there's no way to save unless all\n\t\t// fields are valid.\n\t\tconst { saveButtonView, cancelButtonView } = this._createActionButtons();\n\n\t\tthis.saveButtonView = saveButtonView;\n\t\tthis.cancelButtonView = cancelButtonView;\n\t\tthis._focusables = new ViewCollection();\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate form fields backwards using the Shift + Tab keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate form fields forwards using the Tab key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\t// Form header.\n\t\tthis.children.add( new FormHeaderView( locale, {\n\t\t\tlabel: this.t!( 'Cell properties' )\n\t\t} ) );\n\n\t\t// Border row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: borderRowLabel,\n\t\t\tchildren: [\n\t\t\t\tborderRowLabel,\n\t\t\t\tborderStyleDropdown,\n\t\t\t\tborderColorInput,\n\t\t\t\tborderWidthInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__border-row'\n\t\t} ) );\n\n\t\t// Background.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: backgroundRowLabel,\n\t\t\tchildren: [\n\t\t\t\tbackgroundRowLabel,\n\t\t\t\tbackgroundInput\n\t\t\t],\n\t\t\tclass: 'ck-table-form__background-row'\n\t\t} ) );\n\n\t\t// Dimensions row and padding.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\t// Dimensions row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tlabelView: dimensionsLabel,\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tdimensionsLabel,\n\t\t\t\t\t\twidthInput,\n\t\t\t\t\t\toperatorLabel,\n\t\t\t\t\t\theightInput\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-form__dimensions-row'\n\t\t\t\t} ),\n\t\t\t\t// Padding row.\n\t\t\t\tnew FormRowView( locale, {\n\t\t\t\t\tchildren: [\n\t\t\t\t\t\tthis.paddingInput\n\t\t\t\t\t],\n\t\t\t\t\tclass: 'ck-table-cell-properties-form__padding-row'\n\t\t\t\t} )\n\t\t\t]\n\t\t} ) );\n\n\t\t// Text alignment row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tlabelView: alignmentLabel,\n\t\t\tchildren: [\n\t\t\t\talignmentLabel,\n\t\t\t\thorizontalAlignmentToolbar,\n\t\t\t\tverticalAlignmentToolbar\n\t\t\t],\n\t\t\tclass: 'ck-table-cell-properties-form__alignment-row'\n\t\t} ) );\n\n\t\t// Action row.\n\t\tthis.children.add( new FormRowView( locale, {\n\t\t\tchildren: [\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t],\n\t\t\tclass: 'ck-table-form__action-row'\n\t\t} ) );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-form',\n\t\t\t\t\t'ck-table-form',\n\t\t\t\t\t'ck-table-cell-properties-form'\n\t\t\t\t],\n\t\t\t\t// https://github.com/ckeditor/ckeditor5-link/issues/90\n\t\t\t\ttabindex: '-1'\n\t\t\t},\n\t\t\tchildren: this.children\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Enable the \"submit\" event for this view. It can be triggered by the #saveButtonView\n\t\t// which is of the \"submit\" DOM \"type\".\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\t[\n\t\t\tthis.borderStyleDropdown,\n\t\t\tthis.borderColorInput,\n\t\t\tthis.borderColorInput.fieldView.dropdownView.buttonView,\n\t\t\tthis.borderWidthInput,\n\t\t\tthis.backgroundInput,\n\t\t\tthis.backgroundInput.fieldView.dropdownView.buttonView,\n\t\t\tthis.widthInput,\n\t\t\tthis.heightInput,\n\t\t\tthis.paddingInput,\n\t\t\tthis.horizontalAlignmentToolbar,\n\t\t\tthis.verticalAlignmentToolbar,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t].forEach( view => {\n\t\t\t// Register the view as focusable.\n\t\t\tthis._focusables.add( view );\n\n\t\t\t// Register the view in the focus tracker.\n\t\t\tthis.focusTracker.add( view.element! );\n\t\t} );\n\n\t\t// Mainly for closing using \"Esc\" and navigation using \"Tab\".\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Focuses the fist focusable field in the form.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #borderStyleDropdown},\n\t * * {@link #borderWidthInput},\n\t * * {@link #borderColorInput}.\n\t */\n\tprivate _createBorderFields(): {\n\t\tborderRowLabel: LabelView;\n\t\tborderStyleDropdown: LabeledFieldView;\n\t\tborderColorInput: LabeledFieldView<ColorInputView>;\n\t\tborderWidthInput: LabeledFieldView;\n\t\t} {\n\t\tconst defaultTableCellProperties = this.options.defaultTableCellProperties;\n\t\tconst defaultBorder = {\n\t\t\tstyle: defaultTableCellProperties.borderStyle,\n\t\t\twidth: defaultTableCellProperties.borderWidth,\n\t\t\tcolor: defaultTableCellProperties.borderColor\n\t\t};\n\n\t\tconst colorInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.borderColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: defaultBorder.color\n\t\t} );\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst borderRowLabel = new LabelView( locale );\n\t\tborderRowLabel.text = t( 'Border' );\n\n\t\t// -- Style ---------------------------------------------------\n\n\t\tconst styleLabels = getBorderStyleLabels( t );\n\t\tconst borderStyleDropdown = new LabeledFieldView( locale, createLabeledDropdown );\n\t\tborderStyleDropdown.set( {\n\t\t\tlabel: t( 'Style' ),\n\t\t\tclass: 'ck-table-form__border-style'\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.set( {\n\t\t\tisOn: false,\n\t\t\twithText: true,\n\t\t\ttooltip: t( 'Style' )\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.buttonView.bind( 'label' ).to( this, 'borderStyle', value => {\n\t\t\treturn styleLabels[ value ? value : 'none' ];\n\t\t} );\n\n\t\tborderStyleDropdown.fieldView.on( 'execute', evt => {\n\t\t\tthis.borderStyle = ( evt.source as Record<string, unknown> )._borderStyleValue as string;\n\t\t} );\n\n\t\tborderStyleDropdown.bind( 'isEmpty' ).to( this, 'borderStyle', value => !value );\n\n\t\taddListToDropdown( borderStyleDropdown.fieldView, getBorderStyleDefinitions( this, defaultBorder.style! ) );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst borderWidthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\tborderWidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__border-width'\n\t\t} );\n\n\t\tborderWidthInput.fieldView.bind( 'value' ).to( this, 'borderWidth' );\n\t\tborderWidthInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\t\tborderWidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderWidth = borderWidthInput.fieldView.element!.value;\n\t\t} );\n\n\t\t// -- Color ---------------------------------------------------\n\n\t\tconst borderColorInput = new LabeledFieldView( locale, colorInputCreator );\n\n\t\tborderColorInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-form__border-color'\n\t\t} );\n\n\t\tborderColorInput.fieldView.bind( 'value' ).to( this, 'borderColor' );\n\t\tborderColorInput.bind( 'isEnabled' ).to( this, 'borderStyle', isBorderStyleSet );\n\n\t\tborderColorInput.fieldView.on( 'input', () => {\n\t\t\tthis.borderColor = borderColorInput.fieldView.value;\n\t\t} );\n\n\t\t// Reset the border color and width fields depending on the `border-style` value.\n\t\tthis.on<ObservableChangeEvent<string>>( 'change:borderStyle', ( evt, name, newValue, oldValue ) => {\n\t\t\t// When removing the border (`border-style:none`), clear the remaining `border-*` properties.\n\t\t\t// See: https://github.com/ckeditor/ckeditor5/issues/6227.\n\t\t\tif ( !isBorderStyleSet( newValue ) ) {\n\t\t\t\tthis.borderColor = '';\n\t\t\t\tthis.borderWidth = '';\n\t\t\t}\n\n\t\t\t// When setting the `border-style` from `none`, set the default `border-color` and `border-width` properties.\n\t\t\tif ( !isBorderStyleSet( oldValue ) ) {\n\t\t\t\tthis.borderColor = defaultBorder.color!;\n\t\t\t\tthis.borderWidth = defaultBorder.width!;\n\t\t\t}\n\t\t} );\n\n\t\treturn {\n\t\t\tborderRowLabel,\n\t\t\tborderStyleDropdown,\n\t\t\tborderColorInput,\n\t\t\tborderWidthInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #backgroundInput}.\n\t */\n\tprivate _createBackgroundFields() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\t// -- Group label ---------------------------------------------\n\n\t\tconst backgroundRowLabel = new LabelView( locale );\n\t\tbackgroundRowLabel.text = t( 'Background' );\n\n\t\t// -- Background color input -----------------------------------\n\n\t\tconst colorInputCreator = getLabeledColorInputCreator( {\n\t\t\tcolorConfig: this.options.backgroundColors,\n\t\t\tcolumns: 5,\n\t\t\tdefaultColorValue: this.options.defaultTableCellProperties.backgroundColor\n\t\t} );\n\n\t\tconst backgroundInput = new LabeledFieldView( locale, colorInputCreator );\n\n\t\tbackgroundInput.set( {\n\t\t\tlabel: t( 'Color' ),\n\t\t\tclass: 'ck-table-cell-properties-form__background'\n\t\t} );\n\n\t\tbackgroundInput.fieldView.bind( 'value' ).to( this, 'backgroundColor' );\n\t\tbackgroundInput.fieldView.on( 'input', () => {\n\t\t\tthis.backgroundColor = backgroundInput.fieldView.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tbackgroundRowLabel,\n\t\t\tbackgroundInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #widthInput}.\n\t * * {@link #heightInput}.\n\t */\n\tprivate _createDimensionFields(): {\n\t\tdimensionsLabel: LabelView;\n\t\twidthInput: LabeledFieldView;\n\t\toperatorLabel: View;\n\t\theightInput: LabeledFieldView;\n\t\t} {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\t// -- Label ---------------------------------------------------\n\n\t\tconst dimensionsLabel = new LabelView( locale );\n\t\tdimensionsLabel.text = t( 'Dimensions' );\n\n\t\t// -- Width ---------------------------------------------------\n\n\t\tconst widthInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\twidthInput.set( {\n\t\t\tlabel: t( 'Width' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__width'\n\t\t} );\n\n\t\twidthInput.fieldView.bind( 'value' ).to( this, 'width' );\n\t\twidthInput.fieldView.on( 'input', () => {\n\t\t\tthis.width = widthInput.fieldView.element!.value;\n\t\t} );\n\n\t\t// -- Operator ---------------------------------------------------\n\n\t\tconst operatorLabel = new View( locale );\n\t\toperatorLabel.setTemplate( {\n\t\t\ttag: 'span',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-table-form__dimension-operator'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{ text: '×' }\n\t\t\t]\n\t\t} );\n\n\t\t// -- Height ---------------------------------------------------\n\n\t\tconst heightInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\theightInput.set( {\n\t\t\tlabel: t( 'Height' ),\n\t\t\tclass: 'ck-table-form__dimensions-row__height'\n\t\t} );\n\n\t\theightInput.fieldView.bind( 'value' ).to( this, 'height' );\n\t\theightInput.fieldView.on( 'input', () => {\n\t\t\tthis.height = heightInput.fieldView.element!.value;\n\t\t} );\n\n\t\treturn {\n\t\t\tdimensionsLabel,\n\t\t\twidthInput,\n\t\t\toperatorLabel,\n\t\t\theightInput\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #paddingInput}.\n\t */\n\tprivate _createPaddingField(): LabeledFieldView {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\n\t\tconst paddingInput = new LabeledFieldView( locale, createLabeledInputText );\n\n\t\tpaddingInput.set( {\n\t\t\tlabel: t( 'Padding' ),\n\t\t\tclass: 'ck-table-cell-properties-form__padding'\n\t\t} );\n\n\t\tpaddingInput.fieldView.bind( 'value' ).to( this, 'padding' );\n\t\tpaddingInput.fieldView.on( 'input', () => {\n\t\t\tthis.padding = paddingInput.fieldView.element!.value;\n\t\t} );\n\n\t\treturn paddingInput;\n\t}\n\n\t/**\n\t * Creates the following form fields:\n\t *\n\t * * {@link #horizontalAlignmentToolbar},\n\t * * {@link #verticalAlignmentToolbar}.\n\t */\n\tprivate _createAlignmentFields() {\n\t\tconst locale = this.locale!;\n\t\tconst t = this.t!;\n\n\t\tconst alignmentLabel = new LabelView( locale );\n\n\t\talignmentLabel.text = t( 'Table cell text alignment' );\n\n\t\t// -- Horizontal ---------------------------------------------------\n\n\t\tconst horizontalAlignmentToolbar = new ToolbarView( locale );\n\t\tconst isContentRTL = locale.contentLanguageDirection === 'rtl';\n\n\t\thorizontalAlignmentToolbar.set( {\n\t\t\tisCompact: true,\n\t\t\tariaLabel: t( 'Horizontal text alignment toolbar' )\n\t\t} );\n\n\t\tfillToolbar( {\n\t\t\tview: this,\n\t\t\ticons: ALIGNMENT_ICONS,\n\t\t\ttoolbar: horizontalAlignmentToolbar,\n\t\t\tlabels: this._horizontalAlignmentLabels,\n\t\t\tpropertyName: 'horizontalAlignment',\n\t\t\tnameToValue: name => {\n\t\t\t\t// For the RTL content, we want to swap the buttons \"align to the left\" and \"align to the right\".\n\t\t\t\tif ( isContentRTL ) {\n\t\t\t\t\tif ( name === 'left' ) {\n\t\t\t\t\t\treturn 'right';\n\t\t\t\t\t} else if ( name === 'right' ) {\n\t\t\t\t\t\treturn 'left';\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn name;\n\t\t\t},\n\t\t\tdefaultValue: this.options.defaultTableCellProperties.horizontalAlignment\n\t\t} );\n\n\t\t// -- Vertical -----------------------------------------------------\n\n\t\tconst verticalAlignmentToolbar = new ToolbarView( locale );\n\n\t\tverticalAlignmentToolbar.set( {\n\t\t\tisCompact: true,\n\t\t\tariaLabel: t( 'Vertical text alignment toolbar' )\n\t\t} );\n\n\t\tfillToolbar( {\n\t\t\tview: this,\n\t\t\ticons: ALIGNMENT_ICONS,\n\t\t\ttoolbar: verticalAlignmentToolbar,\n\t\t\tlabels: this._verticalAlignmentLabels,\n\t\t\tpropertyName: 'verticalAlignment',\n\t\t\tdefaultValue: this.options.defaultTableCellProperties.verticalAlignment\n\t\t} );\n\n\t\treturn {\n\t\t\thorizontalAlignmentToolbar,\n\t\t\tverticalAlignmentToolbar,\n\t\t\talignmentLabel\n\t\t};\n\t}\n\n\t/**\n\t * Creates the following form controls:\n\t *\n\t * * {@link #saveButtonView},\n\t * * {@link #cancelButtonView}.\n\t */\n\tprivate _createActionButtons() {\n\t\tconst locale = this.locale;\n\t\tconst t = this.t!;\n\t\tconst saveButtonView = new ButtonView( locale );\n\t\tconst cancelButtonView = new ButtonView( locale );\n\t\tconst fieldsThatShouldValidateToSave = [\n\t\t\tthis.borderWidthInput,\n\t\t\tthis.borderColorInput,\n\t\t\tthis.backgroundInput,\n\t\t\tthis.paddingInput\n\t\t];\n\n\t\tsaveButtonView.set( {\n\t\t\tlabel: t( 'Save' ),\n\t\t\ticon: icons.check,\n\t\t\tclass: 'ck-button-save',\n\t\t\ttype: 'submit',\n\t\t\twithText: true\n\t\t} );\n\n\t\tsaveButtonView.bind( 'isEnabled' ).toMany( fieldsThatShouldValidateToSave, 'errorText', ( ...errorTexts ) => {\n\t\t\treturn errorTexts.every( errorText => !errorText );\n\t\t} );\n\n\t\tcancelButtonView.set( {\n\t\t\tlabel: t( 'Cancel' ),\n\t\t\ticon: icons.cancel,\n\t\t\tclass: 'ck-button-cancel',\n\t\t\twithText: true\n\t\t} );\n\n\t\tcancelButtonView.delegate( 'execute' ).to( this, 'cancel' );\n\n\t\treturn {\n\t\t\tsaveButtonView, cancelButtonView\n\t\t};\n\t}\n\n\t/**\n\t * Provides localized labels for {@link #horizontalAlignmentToolbar} buttons.\n\t */\n\tprivate get _horizontalAlignmentLabels(): Record<string, string> {\n\t\tconst locale = this.locale!;\n\t\tconst t = this.t!;\n\n\t\tconst left = t( 'Align cell text to the left' );\n\t\tconst center = t( 'Align cell text to the center' );\n\t\tconst right = t( 'Align cell text to the right' );\n\t\tconst justify = t( 'Justify cell text' );\n\n\t\t// Returns object with a proper order of labels.\n\t\tif ( locale.uiLanguageDirection === 'rtl' ) {\n\t\t\treturn { right, center, left, justify };\n\t\t} else {\n\t\t\treturn { left, center, right, justify };\n\t\t}\n\t}\n\n\t/**\n\t * Provides localized labels for {@link #verticalAlignmentToolbar} buttons.\n\t */\n\tprivate get _verticalAlignmentLabels(): Record<string, string> {\n\t\tconst t = this.t!;\n\n\t\treturn {\n\t\t\ttop: t( 'Align cell text to the top' ),\n\t\t\tmiddle: t( 'Align cell text to the middle' ),\n\t\t\tbottom: t( 'Align cell text to the bottom' )\n\t\t};\n\t}\n}\n\nfunction isBorderStyleSet( value: string ) {\n\treturn value !== 'none';\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m11.105 18-.17 1H2.5A1.5 1.5 0 0 1 1 17.5v-15A1.5 1.5 0 0 1 2.5 1h15A1.5 1.5 0 0 1 19 2.5v9.975l-.85-.124-.15-.302V8h-5v4h.021l-.172.351-1.916.28-.151.027c-.287.063-.54.182-.755.341L8 13v5h3.105zM2 12h5V8H2v4zm10-4H8v4h4V8zM2 2v5h5V2H2zm0 16h5v-5H2v5zM13 7h5V2h-5v5zM8 2v5h4V2H8z\\\" opacity=\\\".6\\\"/><path d=\\\"m15.5 11.5 1.323 2.68 2.957.43-2.14 2.085.505 2.946L15.5 18.25l-2.645 1.39.505-2.945-2.14-2.086 2.957-.43L15.5 11.5zM13 6a1 1 0 0 1 1 1v3.172a2.047 2.047 0 0 0-.293.443l-.858 1.736-1.916.28-.151.027A1.976 1.976 0 0 0 9.315 14H7a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h6zm-1 2H8v4h4V8z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/tablecellpropertiesui\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport {\n\tButtonView,\n\tclickOutsideHandler,\n\tContextualBalloon,\n\tgetLocalizedColorOptions,\n\tnormalizeColorOptions,\n\ttype View\n} from 'ckeditor5/src/ui';\nimport type { Batch } from 'ckeditor5/src/engine';\n\nimport TableCellPropertiesView from './ui/tablecellpropertiesview';\nimport {\n\tcolorFieldValidator,\n\tgetLocalizedColorErrorText,\n\tgetLocalizedLengthErrorText,\n\tdefaultColors,\n\tlengthFieldValidator,\n\tlineWidthFieldValidator\n} from '../utils/ui/table-properties';\nimport { debounce } from 'lodash-es';\nimport { getTableWidgetAncestor } from '../utils/ui/widget';\nimport { getBalloonCellPositionData, repositionContextualBalloon } from '../utils/ui/contextualballoon';\n\nimport tableCellProperties from './../../theme/icons/table-cell-properties.svg';\nimport { getNormalizedDefaultProperties, type NormalizedDefaultProperties } from '../utils/table-properties';\nimport type { GetCallback, ObservableChangeEvent } from 'ckeditor5/src/utils';\n\nimport type TableCellBorderStyleCommand from './commands/tablecellborderstylecommand';\n\nconst ERROR_TEXT_TIMEOUT = 500;\n\n// Map of view properties and related commands.\nconst propertyToCommandMap = {\n\tborderStyle: 'tableCellBorderStyle',\n\tborderColor: 'tableCellBorderColor',\n\tborderWidth: 'tableCellBorderWidth',\n\theight: 'tableCellHeight',\n\twidth: 'tableCellWidth',\n\tpadding: 'tableCellPadding',\n\tbackgroundColor: 'tableCellBackgroundColor',\n\thorizontalAlignment: 'tableCellHorizontalAlignment',\n\tverticalAlignment: 'tableCellVerticalAlignment'\n} as const;\n\n/**\n * The table cell properties UI plugin. It introduces the `'tableCellProperties'` button\n * that opens a form allowing to specify the visual styling of a table cell.\n *\n * It uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon contextual balloon plugin}.\n */\nexport default class TableCellPropertiesUI extends Plugin {\n\t/**\n\t * The default table cell properties.\n\t */\n\tprivate _defaultTableCellProperties!: NormalizedDefaultProperties;\n\n\t/**\n\t * The contextual balloon plugin instance.\n\t */\n\tprivate _balloon?: ContextualBalloon;\n\n\t/**\n\t * The cell properties form view displayed inside the balloon.\n\t */\n\tpublic view?: TableCellPropertiesView | null;\n\n\t/**\n\t * The batch used to undo all changes made by the form (which are live, as the user types)\n\t * when \"Cancel\" was pressed. Each time the view is shown, a new batch is created.\n\t */\n\tprivate _undoStepBatch?: Batch;\n\n\t/**\n\t * Flag used to indicate whether view is ready to execute update commands\n\t * (it finished loading initial data).\n\t */\n\tprivate _isReady?: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ContextualBalloon ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableCellPropertiesUI' {\n\t\treturn 'TableCellPropertiesUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'table.tableCellProperties', {\n\t\t\tborderColors: defaultColors,\n\t\t\tbackgroundColors: defaultColors\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tthis._defaultTableCellProperties = getNormalizedDefaultProperties(\n\t\t\teditor.config.get( 'table.tableCellProperties.defaultProperties' )!,\n\t\t\t{\n\t\t\t\tincludeVerticalAlignmentProperty: true,\n\t\t\t\tincludeHorizontalAlignmentProperty: true,\n\t\t\t\tincludePaddingProperty: true,\n\t\t\t\tisRightToLeftContent: editor.locale.contentLanguageDirection === 'rtl'\n\t\t\t}\n\t\t);\n\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\t\tthis.view = null;\n\t\tthis._isReady = false;\n\n\t\teditor.ui.componentFactory.add( 'tableCellProperties', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Cell properties' ),\n\t\t\t\ticon: tableCellProperties,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tthis.listenTo( view, 'execute', () => this._showView() );\n\n\t\t\tconst commands = Object.values( propertyToCommandMap )\n\t\t\t\t.map( commandName => editor.commands.get( commandName )! );\n\n\t\t\tview.bind( 'isEnabled' ).toMany( commands, 'isEnabled', ( ...areEnabled ) => (\n\t\t\t\tareEnabled.some( isCommandEnabled => isCommandEnabled )\n\t\t\t) );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1341.\n\t\tif ( this.view ) {\n\t\t\tthis.view.destroy();\n\t\t}\n\t}\n\n\t/**\n\t * Creates the {@link module:table/tablecellproperties/ui/tablecellpropertiesview~TableCellPropertiesView} instance.\n\t *\n\t * @returns The cell properties form view instance.\n\t */\n\tprivate _createPropertiesView() {\n\t\tconst editor = this.editor;\n\t\tconst config = editor.config.get( 'table.tableCellProperties' )!;\n\t\tconst borderColorsConfig = normalizeColorOptions( config.borderColors! );\n\t\tconst localizedBorderColors = getLocalizedColorOptions( editor.locale, borderColorsConfig );\n\t\tconst backgroundColorsConfig = normalizeColorOptions( config.backgroundColors! );\n\t\tconst localizedBackgroundColors = getLocalizedColorOptions( editor.locale, backgroundColorsConfig );\n\n\t\tconst view = new TableCellPropertiesView( editor.locale, {\n\t\t\tborderColors: localizedBorderColors,\n\t\t\tbackgroundColors: localizedBackgroundColors,\n\t\t\tdefaultTableCellProperties: this._defaultTableCellProperties\n\t\t} );\n\t\tconst t = editor.t;\n\n\t\t// Render the view so its #element is available for the clickOutsideHandler.\n\t\tview.render();\n\n\t\tthis.listenTo( view, 'submit', () => {\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\tthis.listenTo( view, 'cancel', () => {\n\t\t\t// https://github.com/ckeditor/ckeditor5/issues/6180\n\t\t\tif ( this._undoStepBatch!.operations.length ) {\n\t\t\t\teditor.execute( 'undo', this._undoStepBatch );\n\t\t\t}\n\n\t\t\tthis._hideView();\n\t\t} );\n\n\t\t// Close the balloon on Esc key press.\n\t\tview.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tthis._hideView();\n\t\t\tcancel();\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: view,\n\t\t\tactivator: () => this._isViewInBalloon,\n\t\t\tcontextElements: [ this._balloon!.view.element! ],\n\t\t\tcallback: () => this._hideView()\n\t\t} );\n\n\t\tconst colorErrorText = getLocalizedColorErrorText( t );\n\t\tconst lengthErrorText = getLocalizedLengthErrorText( t );\n\n\t\t// Create the \"UI -> editor data\" binding.\n\t\t// These listeners update the editor data (via table commands) when any observable\n\t\t// property of the view has changed. They also validate the value and display errors in the UI\n\t\t// when necessary. This makes the view live, which means the changes are\n\t\t// visible in the editing as soon as the user types or changes fields' values.\n\t\tview.on<ObservableChangeEvent<string>>(\n\t\t\t'change:borderStyle',\n\t\t\tthis._getPropertyChangeCallback( 'tableCellBorderStyle' )\n\t\t);\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:borderColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderColorInput,\n\t\t\tcommandName: 'tableCellBorderColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:borderWidth', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.borderWidthInput,\n\t\t\tcommandName: 'tableCellBorderWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lineWidthFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:padding', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.paddingInput,\n\t\t\tcommandName: 'tableCellPadding',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:width', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.widthInput,\n\t\t\tcommandName: 'tableCellWidth',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:height', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.heightInput,\n\t\t\tcommandName: 'tableCellHeight',\n\t\t\terrorText: lengthErrorText,\n\t\t\tvalidator: lengthFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>( 'change:backgroundColor', this._getValidatedPropertyChangeCallback( {\n\t\t\tviewField: view.backgroundInput,\n\t\t\tcommandName: 'tableCellBackgroundColor',\n\t\t\terrorText: colorErrorText,\n\t\t\tvalidator: colorFieldValidator\n\t\t} ) );\n\n\t\tview.on<ObservableChangeEvent<string>>(\n\t\t\t'change:horizontalAlignment',\n\t\t\tthis._getPropertyChangeCallback( 'tableCellHorizontalAlignment' )\n\t\t);\n\t\tview.on<ObservableChangeEvent<string>>(\n\t\t\t'change:verticalAlignment',\n\t\t\tthis._getPropertyChangeCallback( 'tableCellVerticalAlignment' )\n\t\t);\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * In this method the \"editor data -> UI\" binding is happening.\n\t *\n\t * When executed, this method obtains selected cell property values from various table commands\n\t * and passes them to the {@link #view}.\n\t *\n\t * This way, the UI stays up–to–date with the editor data.\n\t */\n\tprivate _fillViewFormFromCommandValues() {\n\t\tconst commands = this.editor.commands;\n\t\tconst borderStyleCommand: TableCellBorderStyleCommand = commands.get( 'tableCellBorderStyle' )!;\n\n\t\tObject.entries( propertyToCommandMap )\n\t\t\t.map( ( [ property, commandName ] ) => {\n\t\t\t\tconst defaultValue = this._defaultTableCellProperties[ property as keyof NormalizedDefaultProperties ] || '';\n\n\t\t\t\treturn [\n\t\t\t\t\tproperty as keyof typeof propertyToCommandMap,\n\t\t\t\t\tcommands.get( commandName )!.value as string || defaultValue\n\t\t\t\t] as const;\n\t\t\t} )\n\t\t\t.forEach( ( [ property, value ] ) => {\n\t\t\t\t// Do not set the `border-color` and `border-width` fields if `border-style:none`.\n\t\t\t\tif ( ( property === 'borderColor' || property === 'borderWidth' ) && borderStyleCommand.value === 'none' ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tthis.view!.set( property, value );\n\t\t\t} );\n\n\t\tthis._isReady = true;\n\t}\n\n\t/**\n\t * Shows the {@link #view} in the {@link #_balloon}.\n\t *\n\t * **Note**: Each time a view is shown, a new {@link #_undoStepBatch} is created. It contains\n\t * all changes made to the document when the view is visible, allowing a single undo step\n\t * for all of them.\n\t */\n\tprotected _showView(): void {\n\t\tconst editor = this.editor;\n\n\t\tif ( !this.view ) {\n\t\t\tthis.view = this._createPropertiesView();\n\t\t}\n\n\t\tthis.listenTo( editor.ui, 'update', () => {\n\t\t\tthis._updateView();\n\t\t} );\n\n\t\t// Update the view with the model values.\n\t\tthis._fillViewFormFromCommandValues();\n\n\t\tthis._balloon!.add( {\n\t\t\tview: this.view,\n\t\t\tposition: getBalloonCellPositionData( editor )\n\t\t} );\n\n\t\t// Create a new batch. Clicking \"Cancel\" will undo this batch.\n\t\tthis._undoStepBatch = editor.model.createBatch();\n\n\t\t// Basic a11y.\n\t\tthis.view.focus();\n\t}\n\n\t/**\n\t * Removes the {@link #view} from the {@link #_balloon}.\n\t */\n\tprotected _hideView(): void {\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\n\t\tthis._isReady = false;\n\n\t\t// Blur any input element before removing it from DOM to prevent issues in some browsers.\n\t\t// See https://github.com/ckeditor/ckeditor5/issues/1501.\n\t\tthis.view!.saveButtonView.focus();\n\n\t\tthis._balloon!.remove( this.view! );\n\n\t\t// Make sure the focus is not lost in the process by putting it directly\n\t\t// into the editing view.\n\t\tthis.editor.editing.view.focus();\n\t}\n\n\t/**\n\t * Repositions the {@link #_balloon} or hides the {@link #view} if a table cell is no longer selected.\n\t */\n\tprotected _updateView(): void {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = editor.editing.view.document;\n\n\t\tif ( !getTableWidgetAncestor( viewDocument.selection ) ) {\n\t\t\tthis._hideView();\n\t\t} else if ( this._isViewVisible ) {\n\t\t\trepositionContextualBalloon( editor, 'cell' );\n\t\t}\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is visible in the {@link #_balloon}.\n\t */\n\tprivate get _isViewVisible() {\n\t\treturn !!this.view && this._balloon!.visibleView === this.view;\n\t}\n\n\t/**\n\t * Returns `true` when the {@link #view} is in the {@link #_balloon}.\n\t */\n\tprivate get _isViewInBalloon() {\n\t\treturn !!this.view && this._balloon!.hasView( this.view );\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon the {@link #view view's} property change\n\t * executes a related editor command with the new property value.\n\t *\n\t * @param defaultValue The default value of the command.\n\t */\n\tprivate _getPropertyChangeCallback(\n\t\tcommandName: 'tableCellBorderStyle' | 'tableCellHorizontalAlignment' | 'tableCellVerticalAlignment'\n\t): GetCallback<ObservableChangeEvent<string>> {\n\t\treturn ( evt, propertyName, newValue ) => {\n\t\t\tif ( !this._isReady ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthis.editor.execute( commandName, {\n\t\t\t\tvalue: newValue,\n\t\t\t\tbatch: this._undoStepBatch\n\t\t\t} );\n\t\t};\n\t}\n\n\t/**\n\t * Creates a callback that when executed upon the {@link #view view's} property change:\n\t * * Executes a related editor command with the new property value if the value is valid,\n\t * * Or sets the error text next to the invalid field, if the value did not pass the validation.\n\t */\n\tprivate _getValidatedPropertyChangeCallback(\n\t\toptions: {\n\t\t\tcommandName: `tableCell${ 'BorderColor' | 'BorderWidth' | 'Padding' | 'Width' | 'Height' | 'BackgroundColor' }`;\n\t\t\tviewField: View & { errorText?: string | null };\n\t\t\tvalidator: ( arg0: string ) => boolean;\n\t\t\terrorText: string;\n\t\t}\n\t): GetCallback<ObservableChangeEvent<string>> {\n\t\tconst { commandName, viewField, validator, errorText } = options;\n\t\tconst setErrorTextDebounced = debounce( () => {\n\t\t\tviewField.errorText = errorText;\n\t\t}, ERROR_TEXT_TIMEOUT );\n\n\t\treturn ( evt, propertyName, newValue ) => {\n\t\t\tsetErrorTextDebounced.cancel();\n\t\t\t// Do not execute the command on initial call (opening the table properties view).\n\t\t\tif ( !this._isReady ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( validator( newValue ) ) {\n\t\t\t\tthis.editor.execute( commandName, {\n\t\t\t\t\tvalue: newValue,\n\t\t\t\t\tbatch: this._undoStepBatch\n\t\t\t\t} );\n\n\t\t\t\tviewField.errorText = null;\n\t\t\t} else {\n\t\t\t\tsetErrorTextDebounced();\n\t\t\t}\n\t\t};\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellpropertycommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { Element, Batch } from 'ckeditor5/src/engine';\nimport type TableUtils from '../../tableutils';\n\n/**\n * The table cell attribute command.\n *\n * The command is a base command for other table cell property commands.\n */\nexport default class TableCellPropertyCommand extends Command {\n\t/**\n\t * The attribute that will be set by the command.\n\t */\n\tpublic readonly attributeName: string;\n\n\t/**\n\t * The default value for the attribute.\n\t */\n\tprotected readonly _defaultValue: string;\n\n\t/**\n\t * Creates a new `TableCellPropertyCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param attributeName Table cell attribute name.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, attributeName: string, defaultValue: string ) {\n\t\tsuper( editor );\n\n\t\tthis.attributeName = attributeName;\n\t\tthis._defaultValue = defaultValue;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst selectedTableCells = tableUtils.getSelectionAffectedTableCells( editor.model.document.selection );\n\n\t\tthis.isEnabled = !!selectedTableCells.length;\n\t\tthis.value = this._getSingleValue( selectedTableCells );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t * @param options.value If set, the command will set the attribute on selected table cells.\n\t * If it is not set, the command will remove the attribute from the selected table cells.\n\t * @param options.batch Pass the model batch instance to the command to aggregate changes,\n\t * for example to allow a single undo step for multiple executions.\n\t */\n\tpublic override execute( options: { value?: string | number; batch?: Batch } = {} ): void {\n\t\tconst { value, batch } = options;\n\t\tconst model = this.editor.model;\n\t\tconst tableUtils: TableUtils = this.editor.plugins.get( 'TableUtils' );\n\t\tconst tableCells = tableUtils.getSelectionAffectedTableCells( model.document.selection );\n\t\tconst valueToSet = this._getValueToSet( value );\n\n\t\tmodel.enqueueChange( batch, writer => {\n\t\t\tif ( valueToSet ) {\n\t\t\t\ttableCells.forEach( tableCell => writer.setAttribute( this.attributeName, valueToSet, tableCell ) );\n\t\t\t} else {\n\t\t\t\ttableCells.forEach( tableCell => writer.removeAttribute( this.attributeName, tableCell ) );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns the attribute value for a table cell.\n\t */\n\tprotected _getAttribute( tableCell: Element | undefined ): unknown {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = tableCell.getAttribute( this.attributeName );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Returns the proper model value. It can be used to add a default unit to numeric values.\n\t */\n\tprotected _getValueToSet( value: string | number | undefined ): unknown {\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * Returns a single value for all selected table cells. If the value is the same for all cells,\n\t * it will be returned (`undefined` otherwise).\n\t */\n\tprivate _getSingleValue( tableCells: Array<Element> ) {\n\t\tconst firstCellValue = this._getAttribute( tableCells[ 0 ] );\n\n\t\tconst everyCellHasAttribute = tableCells.every( tableCells => this._getAttribute( tableCells ) === firstCellValue );\n\n\t\treturn everyCellHasAttribute ? firstCellValue : undefined;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellwidth/commands/tablecellwidthcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TableCellPropertyCommand from '../../tablecellproperties/commands/tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\n\n/**\n * The table cell width command.\n *\n * The command is registered by the {@link module:table/tablecellwidth/tablecellwidthediting~TableCellWidthEditing} as\n * the `'tableCellWidth'` editor command.\n *\n * To change the width of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellWidth', {\n *   value: '50px'\n * } );\n * ```\n *\n * **Note**: This command adds a default `'px'` unit to numeric values. Executing:\n *\n * ```ts\n * editor.execute( 'tableCellWidth', {\n *   value: '50'\n * } );\n * ```\n *\n * will set the `width` attribute to `'50px'` in the model.\n */\nexport default class TableCellWidthCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellWidthCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override _getValueToSet( value: string | number | undefined ): unknown {\n\t\tvalue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellwidth/tablecellwidthediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TableEditing from './../tableediting';\nimport TableCellWidthCommand from './commands/tablecellwidthcommand';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\nimport { enableProperty } from '../utils/common';\n\n/**\n * The table cell width editing feature.\n *\n * Introduces `tableCellWidth` table cell model attribute alongside with its converters\n * and a command.\n */\nexport default class TableCellWidthEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableCellWidthEditing' {\n\t\treturn 'TableCellWidthEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\tconst defaultTableCellProperties = getNormalizedDefaultProperties(\n\t\t\teditor.config.get( 'table.tableCellProperties.defaultProperties' )!\n\t\t);\n\n\t\tenableProperty( editor.model.schema, editor.conversion, {\n\t\t\tmodelAttribute: 'tableCellWidth',\n\t\t\tstyleName: 'width',\n\t\t\tdefaultValue: defaultTableCellProperties.width\n\t\t} );\n\n\t\teditor.commands.add( 'tableCellWidth', new TableCellWidthCommand( editor, defaultTableCellProperties.width ) );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellpaddingcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport type { Element } from 'ckeditor5/src/engine';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue, getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell padding command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellPadding'` editor command.\n *\n * To change the padding of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellPadding', {\n *   value: '5px'\n * } );\n * ```\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n * ```ts\n * editor.execute( 'tableCellPadding', {\n *   value: '5'\n * } );\n * ```\n *\n * will set the `padding` attribute to `'5px'` in the model.\n */\nexport default class TableCellPaddingCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellPaddingCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellPadding', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getAttribute( tableCell: Element ): unknown {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) as string );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValueToSet( value: string | number | undefined ): unknown {\n\t\tconst newValue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( newValue === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn newValue;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellheightcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue } from '../../utils/table-properties';\n\n/**\n * The table cell height command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellHeight'` editor command.\n *\n * To change the height of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellHeight', {\n *   value: '50px'\n * } );\n * ```\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n * ```ts\n * editor.execute( 'tableCellHeight', {\n *   value: '50'\n * } );\n * ```\n *\n * will set the `height` attribute to `'50px'` in the model.\n */\nexport default class TableCellHeightCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellHeightCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellHeight', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValueToSet( value: string | number | undefined ): unknown {\n\t\tconst newValue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( newValue === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn newValue;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellbackgroundcolorcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\n\n/**\n * The table cell background color command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBackgroundColor'` editor command.\n *\n * To change the background color of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellBackgroundColor', {\n *   value: '#f00'\n * } );\n * ```\n */\nexport default class TableCellBackgroundColorCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBackgroundColorCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellBackgroundColor', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellverticalalignmentcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\n\n/**\n * The table cell vertical alignment command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellVerticalAlignment'` editor command.\n *\n * To change the vertical text alignment of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellVerticalAlignment', {\n *   value: 'top'\n * } );\n * ```\n *\n * The following values, corresponding to the\n * [`vertical-align` CSS attribute](https://developer.mozilla.org/en-US/docs/Web/CSS/vertical-align), are allowed:\n *\n * * `'top'`\n * * `'bottom'`\n *\n * The `'middle'` value is the default one so there is no need to set it.\n */\nexport default class TableCellVerticalAlignmentCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellVerticalAlignmentCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value for the \"alignment\" attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellVerticalAlignment', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellhorizontalalignmentcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\n\n/**\n * The table cell horizontal alignment command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellHorizontalAlignment'` editor command.\n *\n * To change the horizontal text alignment of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellHorizontalAlignment', {\n *  value: 'right'\n * } );\n * ```\n */\nexport default class TableCellHorizontalAlignmentCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellHorizontalAlignmentCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value for the \"alignment\" attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellHorizontalAlignment', defaultValue );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellborderstylecommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport type { Element } from 'ckeditor5/src/engine';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell border style command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBorderStyle'` editor command.\n *\n * To change the border style of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellBorderStyle', {\n *   value: 'dashed'\n * } );\n * ```\n */\nexport default class TableCellBorderStyleCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBorderStyleCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellBorderStyle', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getAttribute( tableCell: Element ): unknown {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) as string | undefined );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellbordercolorcommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell border color command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBorderColor'` editor command.\n *\n * To change the border color of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellBorderColor', {\n *   value: '#f00'\n * } );\n * ```\n */\nexport default class TableCellBorderColorCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBorderColorCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellBorderColor', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getAttribute( tableCell: Element ): unknown {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) as string | undefined );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/commands/tablecellborderwidthcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport type { Element } from 'ckeditor5/src/engine';\n\nimport TableCellPropertyCommand from './tablecellpropertycommand';\nimport { addDefaultUnitToNumericValue, getSingleValue } from '../../utils/table-properties';\n\n/**\n * The table cell border width command.\n *\n * The command is registered by the {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing} as\n * the `'tableCellBorderWidth'` editor command.\n *\n * To change the border width of selected cells, execute the command:\n *\n * ```ts\n * editor.execute( 'tableCellBorderWidth', {\n *   value: '5px'\n * } );\n * ```\n *\n * **Note**: This command adds the default `'px'` unit to numeric values. Executing:\n *\n * ```ts\n * editor.execute( 'tableCellBorderWidth', {\n *   value: '5'\n * } );\n * ```\n *\n * will set the `borderWidth` attribute to `'5px'` in the model.\n */\nexport default class TableCellBorderWidthCommand extends TableCellPropertyCommand {\n\t/**\n\t * Creates a new `TableCellBorderWidthCommand` instance.\n\t *\n\t * @param editor An editor in which this command will be used.\n\t * @param defaultValue The default value of the attribute.\n\t */\n\tconstructor( editor: Editor, defaultValue: string ) {\n\t\tsuper( editor, 'tableCellBorderWidth', defaultValue );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getAttribute( tableCell: Element ): unknown {\n\t\tif ( !tableCell ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst value = getSingleValue( tableCell.getAttribute( this.attributeName ) as string );\n\n\t\tif ( value === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn value;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tprotected override _getValueToSet( value: string | number | undefined ): unknown {\n\t\tconst newValue = addDefaultUnitToNumericValue( value, 'px' );\n\n\t\tif ( newValue === this._defaultValue ) {\n\t\t\treturn;\n\t\t}\n\n\t\treturn newValue;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties/tablecellpropertiesediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { addBorderRules, addPaddingRules, addBackgroundRules, type Schema, type Conversion, type ViewElement } from 'ckeditor5/src/engine';\n\nimport { downcastAttributeToStyle, upcastBorderStyles } from './../converters/tableproperties';\nimport TableEditing from './../tableediting';\nimport TableCellWidthEditing from '../tablecellwidth/tablecellwidthediting';\nimport TableCellPaddingCommand from './commands/tablecellpaddingcommand';\nimport TableCellHeightCommand from './commands/tablecellheightcommand';\nimport TableCellBackgroundColorCommand from './commands/tablecellbackgroundcolorcommand';\nimport TableCellVerticalAlignmentCommand from './commands/tablecellverticalalignmentcommand';\nimport TableCellHorizontalAlignmentCommand from './commands/tablecellhorizontalalignmentcommand';\nimport TableCellBorderStyleCommand from './commands/tablecellborderstylecommand';\nimport TableCellBorderColorCommand from './commands/tablecellbordercolorcommand';\nimport TableCellBorderWidthCommand from './commands/tablecellborderwidthcommand';\nimport { getNormalizedDefaultProperties } from '../utils/table-properties';\nimport { enableProperty } from '../utils/common';\n\nconst VALIGN_VALUES_REG_EXP = /^(top|middle|bottom)$/;\nconst ALIGN_VALUES_REG_EXP = /^(left|center|right|justify)$/;\n\n/**\n * The table cell properties editing feature.\n *\n * Introduces table cell model attributes and their conversion:\n *\n * - border: `tableCellBorderStyle`, `tableCellBorderColor` and `tableCellBorderWidth`\n * - background color: `tableCellBackgroundColor`\n * - cell padding: `tableCellPadding`\n * - horizontal and vertical alignment: `tableCellHorizontalAlignment`, `tableCellVerticalAlignment`\n * - cell width and height: `tableCellWidth`, `tableCellHeight`\n *\n * It also registers commands used to manipulate the above attributes:\n *\n * - border: the `'tableCellBorderStyle'`, `'tableCellBorderColor'` and `'tableCellBorderWidth'` commands\n * - background color: the `'tableCellBackgroundColor'` command\n * - cell padding: the `'tableCellPadding'` command\n * - horizontal and vertical alignment: the `'tableCellHorizontalAlignment'` and `'tableCellVerticalAlignment'` commands\n * - width and height: the `'tableCellWidth'` and `'tableCellHeight'` commands\n */\nexport default class TableCellPropertiesEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableCellPropertiesEditing' {\n\t\treturn 'TableCellPropertiesEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableEditing, TableCellWidthEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst conversion = editor.conversion;\n\n\t\teditor.config.define( 'table.tableCellProperties.defaultProperties', {} );\n\n\t\tconst defaultTableCellProperties = getNormalizedDefaultProperties(\n\t\t\teditor.config.get( 'table.tableCellProperties.defaultProperties' )!,\n\t\t\t{\n\t\t\t\tincludeVerticalAlignmentProperty: true,\n\t\t\t\tincludeHorizontalAlignmentProperty: true,\n\t\t\t\tincludePaddingProperty: true,\n\t\t\t\tisRightToLeftContent: editor.locale.contentLanguageDirection === 'rtl'\n\t\t\t}\n\t\t);\n\n\t\teditor.data.addStyleProcessorRules( addBorderRules );\n\t\tenableBorderProperties( schema, conversion, {\n\t\t\tcolor: defaultTableCellProperties.borderColor,\n\t\t\tstyle: defaultTableCellProperties.borderStyle,\n\t\t\twidth: defaultTableCellProperties.borderWidth\n\t\t} );\n\t\teditor.commands.add( 'tableCellBorderStyle', new TableCellBorderStyleCommand( editor, defaultTableCellProperties.borderStyle ) );\n\t\teditor.commands.add( 'tableCellBorderColor', new TableCellBorderColorCommand( editor, defaultTableCellProperties.borderColor ) );\n\t\teditor.commands.add( 'tableCellBorderWidth', new TableCellBorderWidthCommand( editor, defaultTableCellProperties.borderWidth ) );\n\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableCellHeight',\n\t\t\tstyleName: 'height',\n\t\t\tdefaultValue: defaultTableCellProperties.height\n\t\t} );\n\t\teditor.commands.add( 'tableCellHeight', new TableCellHeightCommand( editor, defaultTableCellProperties.height ) );\n\n\t\teditor.data.addStyleProcessorRules( addPaddingRules );\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableCellPadding',\n\t\t\tstyleName: 'padding',\n\t\t\treduceBoxSides: true,\n\t\t\tdefaultValue: defaultTableCellProperties.padding!\n\t\t} );\n\t\teditor.commands.add( 'tableCellPadding', new TableCellPaddingCommand( editor, defaultTableCellProperties.padding! ) );\n\n\t\teditor.data.addStyleProcessorRules( addBackgroundRules );\n\t\tenableProperty( schema, conversion, {\n\t\t\tmodelAttribute: 'tableCellBackgroundColor',\n\t\t\tstyleName: 'background-color',\n\t\t\tdefaultValue: defaultTableCellProperties.backgroundColor\n\t\t} );\n\t\teditor.commands.add(\n\t\t\t'tableCellBackgroundColor',\n\t\t\tnew TableCellBackgroundColorCommand( editor, defaultTableCellProperties.backgroundColor )\n\t\t);\n\n\t\tenableHorizontalAlignmentProperty( schema, conversion, defaultTableCellProperties.horizontalAlignment! );\n\t\teditor.commands.add(\n\t\t\t'tableCellHorizontalAlignment',\n\t\t\tnew TableCellHorizontalAlignmentCommand( editor, defaultTableCellProperties.horizontalAlignment! )\n\t\t);\n\n\t\tenableVerticalAlignmentProperty( schema, conversion, defaultTableCellProperties.verticalAlignment! );\n\t\teditor.commands.add(\n\t\t\t'tableCellVerticalAlignment',\n\t\t\tnew TableCellVerticalAlignmentCommand( editor, defaultTableCellProperties.verticalAlignment! )\n\t\t);\n\t}\n}\n\n/**\n * Enables the `'tableCellBorderStyle'`, `'tableCellBorderColor'` and `'tableCellBorderWidth'` attributes for table cells.\n *\n * @param defaultBorder The default border values.\n * @param defaultBorder.color The default `tableCellBorderColor` value.\n * @param defaultBorder.style The default `tableCellBorderStyle` value.\n * @param defaultBorder.width The default `tableCellBorderWidth` value.\n */\nfunction enableBorderProperties( schema: Schema, conversion: Conversion, defaultBorder: { color: string; style: string; width: string } ) {\n\tconst modelAttributes = {\n\t\twidth: 'tableCellBorderWidth',\n\t\tcolor: 'tableCellBorderColor',\n\t\tstyle: 'tableCellBorderStyle'\n\t};\n\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: Object.values( modelAttributes )\n\t} );\n\n\tupcastBorderStyles( conversion, 'td', modelAttributes, defaultBorder );\n\tupcastBorderStyles( conversion, 'th', modelAttributes, defaultBorder );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', modelAttribute: modelAttributes.style, styleName: 'border-style' } );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', modelAttribute: modelAttributes.color, styleName: 'border-color' } );\n\tdowncastAttributeToStyle( conversion, { modelElement: 'tableCell', modelAttribute: modelAttributes.width, styleName: 'border-width' } );\n}\n\n/**\n * Enables the `'tableCellHorizontalAlignment'` attribute for table cells.\n *\n * @param defaultValue The default horizontal alignment value.\n */\nfunction enableHorizontalAlignmentProperty( schema: Schema, conversion: Conversion, defaultValue: string ) {\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: [ 'tableCellHorizontalAlignment' ]\n\t} );\n\n\tconversion.for( 'downcast' )\n\t\t.attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'tableCell',\n\t\t\t\tkey: 'tableCellHorizontalAlignment'\n\t\t\t},\n\t\t\tview: alignment => ( {\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\t'text-align': alignment\n\t\t\t\t}\n\t\t\t} )\n\t\t} );\n\n\tconversion.for( 'upcast' )\n\t\t// Support for the `text-align:*;` CSS definition for the table cell alignment.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tstyles: {\n\t\t\t\t\t'text-align': ALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellHorizontalAlignment',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tconst align = viewElement.getStyle( 'text-align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} )\n\t\t// Support for the `align` attribute as the backward compatibility while pasting from other sources.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tattributes: {\n\t\t\t\t\talign: ALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellHorizontalAlignment',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tconst align = viewElement.getAttribute( 'align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n}\n\n/**\n * Enables the `'verticalAlignment'` attribute for table cells.\n *\n * @param defaultValue The default vertical alignment value.\n */\nfunction enableVerticalAlignmentProperty( schema: Schema, conversion: Conversion, defaultValue: string ) {\n\tschema.extend( 'tableCell', {\n\t\tallowAttributes: [ 'tableCellVerticalAlignment' ]\n\t} );\n\n\tconversion.for( 'downcast' )\n\t\t.attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'tableCell',\n\t\t\t\tkey: 'tableCellVerticalAlignment'\n\t\t\t},\n\t\t\tview: alignment => ( {\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\t'vertical-align': alignment\n\t\t\t\t}\n\t\t\t} )\n\t\t} );\n\n\tconversion.for( 'upcast' )\n\t\t// Support for the `vertical-align:*;` CSS definition for the table cell alignment.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tstyles: {\n\t\t\t\t\t'vertical-align': VALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellVerticalAlignment',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tconst align = viewElement.getStyle( 'vertical-align' );\n\n\t\t\t\t\treturn align === defaultValue ? null : align;\n\t\t\t\t}\n\t\t\t}\n\t\t} )\n\t\t// Support for the `align` attribute as the backward compatibility while pasting from other sources.\n\t\t.attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: /^(td|th)$/,\n\t\t\t\tattributes: {\n\t\t\t\t\tvalign: VALIGN_VALUES_REG_EXP\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'tableCellVerticalAlignment',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tconst valign = viewElement.getAttribute( 'valign' );\n\n\t\t\t\t\treturn valign === defaultValue ? null : valign;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/converters/table-caption-post-fixer\n */\n\nimport type { Model, Writer, Element, Node } from 'ckeditor5/src/engine';\n\n/**\n * Injects a table caption post-fixer into the model.\n *\n * The role of the table caption post-fixer is to ensure that the table with caption have the correct structure\n * after a {@link module:engine/model/model~Model#change `change()`} block was executed.\n *\n * The correct structure means that:\n *\n * * If there are many caption model element, they are merged into one model.\n * * A final, merged caption model is placed at the end of the table.\n */\nexport default function injectTableCaptionPostFixer( model: Model ): void {\n\tmodel.document.registerPostFixer( writer => tableCaptionPostFixer( writer, model ) );\n}\n\n/**\n * The table caption post-fixer.\n */\nfunction tableCaptionPostFixer( writer: Writer, model: Model ) {\n\tconst changes = model.document.differ.getChanges();\n\tlet wasFixed = false;\n\n\tfor ( const entry of changes ) {\n\t\tif ( entry.type != 'insert' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst positionParent = entry.position.parent;\n\n\t\tif ( positionParent.is( 'element', 'table' ) || entry.name == 'table' ) {\n\t\t\tconst table = ( entry.name == 'table' ? entry.position.nodeAfter : positionParent ) as Element;\n\t\t\tconst captionsToMerge = Array.from( table.getChildren() )\n\t\t\t\t.filter( ( child: Node ): child is Element => child.is( 'element', 'caption' ) );\n\t\t\tconst firstCaption = captionsToMerge.shift();\n\n\t\t\tif ( !firstCaption ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Move all the contents of the captions to the first one.\n\t\t\tfor ( const caption of captionsToMerge ) {\n\t\t\t\twriter.move( writer.createRangeIn( caption ), firstCaption, 'end' );\n\t\t\t\twriter.remove( caption );\n\t\t\t}\n\n\t\t\t// Make sure the final caption is at the end of the table.\n\t\t\tif ( firstCaption.nextSibling ) {\n\t\t\t\twriter.move( writer.createRangeOn( firstCaption ), table, 'end' );\n\t\t\t\twasFixed = true;\n\t\t\t}\n\n\t\t\t// Do we merged captions and/or moved the single caption to the end of the table?\n\t\t\twasFixed = !!captionsToMerge.length || wasFixed;\n\t\t}\n\t}\n\n\treturn wasFixed;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecaption/utils\n */\n\nimport type {\n\tDocumentFragment,\n\tDocumentSelection,\n\tElement,\n\tViewElement\n} from 'ckeditor5/src/engine';\n\n/**\n * Checks if the provided model element is a `table`.\n *\n * @param modelElement Element to check if it is a table.\n */\nexport function isTable( modelElement: Element | DocumentFragment | null ): boolean {\n\treturn !!modelElement && modelElement.is( 'element', 'table' );\n}\n\n/**\n * Returns the caption model element from a given table element. Returns `null` if no caption is found.\n *\n * @param tableModelElement Table element in which we will try to find a caption element.\n */\nexport function getCaptionFromTableModelElement( tableModelElement: Element ): Element | null {\n\tfor ( const node of tableModelElement.getChildren() ) {\n\t\tif ( node.is( 'element', 'caption' ) ) {\n\t\t\treturn node;\n\t\t}\n\t}\n\n\treturn null;\n}\n\n/**\n * Returns the caption model element for a model selection. Returns `null` if the selection has no caption element ancestor.\n *\n * @param selection The selection checked for caption presence.\n */\nexport function getCaptionFromModelSelection( selection: DocumentSelection ): Element | null {\n\tconst tableElement = getSelectionAffectedTable( selection );\n\n\tif ( !tableElement ) {\n\t\treturn null;\n\t}\n\n\treturn getCaptionFromTableModelElement( tableElement );\n}\n\n/**\n * {@link module:engine/view/matcher~Matcher} pattern. Checks if a given element is a caption.\n *\n * There are two possible forms of the valid caption:\n *  - A `<figcaption>` element inside a `<figure class=\"table\">` element.\n *  - A `<caption>` inside a <table>.\n *\n * @returns Returns the object accepted by {@link module:engine/view/matcher~Matcher} or `null` if the element cannot be matched.\n */\nexport function matchTableCaptionViewElement( element: ViewElement ): { name: true } | null {\n\tconst parent = element.parent;\n\n\tif ( element.name == 'figcaption' && parent && parent.is( 'element', 'figure' ) && parent.hasClass( 'table' ) ) {\n\t\treturn { name: true };\n\t}\n\n\tif ( element.name == 'caption' && parent && parent.is( 'element', 'table' ) ) {\n\t\treturn { name: true };\n\t}\n\n\treturn null;\n}\n\n/**\n * Depending on the position of the selection we either return the table under cursor or look for the table higher in the hierarchy.\n */\nexport function getSelectionAffectedTable( selection: DocumentSelection ): Element {\n\tconst selectedElement = selection.getSelectedElement();\n\n\t// Is the command triggered from the `tableToolbar`?\n\tif ( selectedElement && selectedElement.is( 'element', 'table' ) ) {\n\t\treturn selectedElement;\n\t}\n\n\treturn selection.getFirstPosition()!.findAncestor( 'table' )!;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n* @module table/tablecaption/toggletablecaptioncommand\n*/\n\nimport { Command } from 'ckeditor5/src/core';\nimport type { Writer } from 'ckeditor5/src/engine';\nimport type TableCaptionEditing from './tablecaptionediting';\n\nimport { getCaptionFromTableModelElement, getSelectionAffectedTable } from './utils';\n\n/**\n * The toggle table caption command.\n *\n * This command is registered by {@link module:table/tablecaption/tablecaptionediting~TableCaptionEditing} as the\n * `'toggleTableCaption'` editor command.\n *\n * Executing this command:\n *\n * * either adds or removes the table caption of a selected table (depending on whether the caption is present or not),\n * * removes the table caption if the selection is anchored in one.\n *\n * ```ts\n * // Toggle the presence of the caption.\n * editor.execute( 'toggleTableCaption' );\n * ```\n *\n * **Note**: You can move the selection to the caption right away as it shows up upon executing this command by using\n * the `focusCaptionOnShow` option:\n *\n * ```ts\n * editor.execute( 'toggleTableCaption', { focusCaptionOnShow: true } );\n * ```\n */\nexport default class ToggleTableCaptionCommand extends Command {\n\tdeclare public value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst editor = this.editor;\n\t\tconst tableElement = getSelectionAffectedTable( editor.model.document.selection );\n\n\t\tthis.isEnabled = !!tableElement;\n\n\t\tif ( !this.isEnabled ) {\n\t\t\tthis.value = false;\n\t\t} else {\n\t\t\tthis.value = !!getCaptionFromTableModelElement( tableElement );\n\t\t}\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * ```ts\n\t * editor.execute( 'toggleTableCaption' );\n\t * ```\n\t *\n\t * @param options Options for the executed command.\n\t * @param options.focusCaptionOnShow When true and the caption shows up, the selection will be moved into it straight away.\n\t * @fires execute\n\t */\n\tpublic override execute( { focusCaptionOnShow = false }: { focusCaptionOnShow?: boolean } = {} ): void {\n\t\tthis.editor.model.change( writer => {\n\t\t\tif ( this.value ) {\n\t\t\t\tthis._hideTableCaption( writer );\n\t\t\t} else {\n\t\t\t\tthis._showTableCaption( writer, focusCaptionOnShow );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Shows the table caption. Also:\n\t *\n\t * * it attempts to restore the caption content from the `TableCaptionEditing` caption registry,\n\t * * it moves the selection to the caption right away, it the `focusCaptionOnShow` option was set.\n\t *\n\t * @param focusCaptionOnShow Default focus behavior when showing the caption.\n\t */\n\tprivate _showTableCaption( writer: Writer, focusCaptionOnShow: boolean ) {\n\t\tconst model = this.editor.model;\n\t\tconst tableElement = getSelectionAffectedTable( model.document.selection );\n\t\tconst tableCaptionEditing: TableCaptionEditing = this.editor.plugins.get( 'TableCaptionEditing' );\n\t\tconst savedCaptionElement = tableCaptionEditing._getSavedCaption( tableElement );\n\n\t\t// Try restoring the caption from the TableCaptionEditing plugin storage.\n\t\tconst newCaptionElement = savedCaptionElement || writer.createElement( 'caption' );\n\n\t\tmodel.insertContent( newCaptionElement, tableElement, 'end' );\n\n\t\tif ( focusCaptionOnShow ) {\n\t\t\twriter.setSelection( newCaptionElement, 'in' );\n\t\t}\n\t}\n\n\t/**\n\t * Hides the caption of a selected table (or an table caption the selection is anchored to).\n\t *\n\t * The content of the caption is stored in the `TableCaptionEditing` caption registry to make this\n\t * a reversible action.\n\t */\n\tprivate _hideTableCaption( writer: Writer ) {\n\t\tconst model = this.editor.model;\n\t\tconst tableElement = getSelectionAffectedTable( model.document.selection );\n\t\tconst tableCaptionEditing: TableCaptionEditing = this.editor.plugins.get( 'TableCaptionEditing' );\n\t\tconst captionElement = getCaptionFromTableModelElement( tableElement )!;\n\n\t\t// Store the caption content so it can be restored quickly if the user changes their mind.\n\t\ttableCaptionEditing._saveCaption( tableElement, captionElement );\n\n\t\tmodel.deleteContent( writer.createSelection( captionElement, 'on' ) );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecaption/tablecaptionediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport { Element, enablePlaceholder } from 'ckeditor5/src/engine';\nimport { toWidgetEditable } from 'ckeditor5/src/widget';\n\nimport injectTableCaptionPostFixer from '../converters/table-caption-post-fixer';\nimport ToggleTableCaptionCommand from './toggletablecaptioncommand';\nimport { isTable, matchTableCaptionViewElement } from './utils';\n\n/**\n * The table caption editing plugin.\n */\nexport default class TableCaptionEditing extends Plugin {\n\t/**\n\t * A map that keeps saved JSONified table captions and table model elements they are\n\t * associated with.\n\t *\n\t * To learn more about this system, see {@link #_saveCaption}.\n\t */\n\tprivate _savedCaptionsMap: WeakMap<Element, unknown>;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableCaptionEditing' {\n\t\treturn 'TableCaptionEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._savedCaptionsMap = new WeakMap();\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst view = editor.editing.view;\n\t\tconst t = editor.t;\n\n\t\tif ( !schema.isRegistered( 'caption' ) ) {\n\t\t\tschema.register( 'caption', {\n\t\t\t\tallowIn: 'table',\n\t\t\t\tallowContentOf: '$block',\n\t\t\t\tisLimit: true\n\t\t\t} );\n\t\t} else {\n\t\t\tschema.extend( 'caption', {\n\t\t\t\tallowIn: 'table'\n\t\t\t} );\n\t\t}\n\n\t\teditor.commands.add( 'toggleTableCaption', new ToggleTableCaptionCommand( this.editor ) );\n\n\t\t// View -> model converter for the data pipeline.\n\t\teditor.conversion.for( 'upcast' ).elementToElement( {\n\t\t\tview: matchTableCaptionViewElement,\n\t\t\tmodel: 'caption'\n\t\t} );\n\n\t\t// Model -> view converter for the data pipeline.\n\t\teditor.conversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !isTable( modelElement.parent ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createContainerElement( 'figcaption' );\n\t\t\t}\n\t\t} );\n\n\t\t// Model -> view converter for the editing pipeline.\n\t\teditor.conversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'caption',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tif ( !isTable( modelElement.parent ) ) {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\n\t\t\t\tconst figcaptionElement = writer.createEditableElement( 'figcaption' );\n\t\t\t\twriter.setCustomProperty( 'tableCaption', true, figcaptionElement );\n\n\t\t\t\tenablePlaceholder( {\n\t\t\t\t\tview,\n\t\t\t\t\telement: figcaptionElement,\n\t\t\t\t\ttext: t( 'Enter table caption' ),\n\t\t\t\t\tkeepOnFocus: true\n\t\t\t\t} );\n\n\t\t\t\treturn toWidgetEditable( figcaptionElement, writer );\n\t\t\t}\n\t\t} );\n\n\t\tinjectTableCaptionPostFixer( editor.model );\n\t}\n\n\t/**\n\t * Returns the saved {@link module:engine/model/element~Element#toJSON JSONified} caption\n\t * of a table model element.\n\t *\n\t * See {@link #_saveCaption}.\n\t *\n\t * @internal\n\t * @param tableModelElement The model element the caption should be returned for.\n\t * @returns The model caption element or `null` if there is none.\n\t */\n\tpublic _getSavedCaption( tableModelElement: Element ): Element | null {\n\t\tconst jsonObject = this._savedCaptionsMap.get( tableModelElement );\n\n\t\treturn jsonObject ? Element.fromJSON( jsonObject ) : null;\n\t}\n\n\t/**\n\t * Saves a {@link module:engine/model/element~Element#toJSON JSONified} caption for\n\t * a table element to allow restoring it in the future.\n\t *\n\t * A caption is saved every time it gets hidden. The\n\t * user should be able to restore it on demand.\n\t *\n\t * **Note**: The caption cannot be stored in the table model element attribute because,\n\t * for instance, when the model state propagates to collaborators, the attribute would get\n\t * lost (mainly because it does not convert to anything when the caption is hidden) and\n\t * the states of collaborators' models would de-synchronize causing numerous issues.\n\t *\n\t * See {@link #_getSavedCaption}.\n\t *\n\t * @internal\n\t * @param tableModelElement The model element the caption is saved for.\n\t * @param caption The caption model element to be saved.\n\t */\n\tpublic _saveCaption( tableModelElement: Element, caption: Element ): void {\n\t\tthis._savedCaptionsMap.set( tableModelElement, caption.toJSON() );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n* @module table/tablecaption/tablecaptionui\n*/\n\nimport { Plugin, icons } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport type ToggleTableCaptionCommand from './toggletablecaptioncommand';\n\nimport { getCaptionFromModelSelection } from './utils';\n\n/**\n  * The table caption UI plugin. It introduces the `'toggleTableCaption'` UI button.\n  */\nexport default class TableCaptionUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableCaptionUI' {\n\t\treturn 'TableCaptionUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( 'toggleTableCaption', locale => {\n\t\t\tconst command: ToggleTableCaptionCommand = editor.commands.get( 'toggleTableCaption' )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\ticon: icons.caption,\n\t\t\t\ttooltip: true,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\t\t\tview.bind( 'label' ).to( command, 'value', value => value ? t( 'Toggle caption off' ) : t( 'Toggle caption on' ) );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'toggleTableCaption', { focusCaptionOnShow: true } );\n\n\t\t\t\t// Scroll to the selection and highlight the caption if the caption showed up.\n\t\t\t\tif ( command.value ) {\n\t\t\t\t\tconst modelCaptionElement = getCaptionFromModelSelection( editor.model.document.selection )!;\n\t\t\t\t\tconst figcaptionElement = editor.editing.mapper.toViewElement( modelCaptionElement );\n\n\t\t\t\t\tif ( !figcaptionElement ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\teditingView.scrollToTheSelection();\n\t\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t\twriter.addClass( 'table__caption_highlighted', figcaptionElement );\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tablecaption.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecolumnresize/constants\n */\n\n/**\n * The minimum column width given as a percentage value. Used in situations when the table is not yet rendered, so it is impossible to\n * calculate how many percentage of the table width would be {@link ~COLUMN_MIN_WIDTH_IN_PIXELS minimum column width in pixels}.\n */\nexport const COLUMN_MIN_WIDTH_AS_PERCENTAGE = 5;\n\n/**\n * The minimum column width in pixels when the maximum table width is known.\n */\nexport const COLUMN_MIN_WIDTH_IN_PIXELS = 40;\n\n/**\n * Determines how many digits after the decimal point are used to store the column width as a percentage value.\n */\nexport const COLUMN_WIDTH_PRECISION = 2;\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecolumnresize/utils\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport type { Element, Model, ViewElement, ViewNode, Writer } from 'ckeditor5/src/engine';\nimport { global } from 'ckeditor5/src/utils';\nimport type TableUtils from '../tableutils';\nimport {\n\tCOLUMN_WIDTH_PRECISION,\n\tCOLUMN_MIN_WIDTH_AS_PERCENTAGE,\n\tCOLUMN_MIN_WIDTH_IN_PIXELS\n} from './constants';\n\n/**\n * Returns all the inserted or changed table model elements in a given change set. Only the tables\n * with 'columnsWidth' attribute are taken into account. The returned set may be empty.\n *\n * Most notably if an entire table is removed it will not be included in returned set.\n *\n * @param model The model to collect the affected elements from.\n * @returns A set of table model elements.\n */\nexport function getChangedResizedTables( model: Model ): Set<Element> {\n\tconst affectedTables: Set<Element> = new Set();\n\n\tfor ( const change of model.document.differ.getChanges() ) {\n\t\tlet referencePosition = null;\n\n\t\t// Checks if the particular change from the differ is:\n\t\t// - an insertion or removal of a table, a row or a cell,\n\t\t// - an attribute change on a table, a row or a cell.\n\t\tswitch ( change.type ) {\n\t\t\tcase 'insert':\n\t\t\t\treferencePosition = [ 'table', 'tableRow', 'tableCell' ].includes( change.name ) ?\n\t\t\t\t\tchange.position :\n\t\t\t\t\tnull;\n\n\t\t\t\tbreak;\n\n\t\t\tcase 'remove':\n\t\t\t\t// If the whole table is removed, there's no need to update its column widths (#12201).\n\t\t\t\treferencePosition = [ 'tableRow', 'tableCell' ].includes( change.name ) ?\n\t\t\t\t\tchange.position :\n\t\t\t\t\tnull;\n\n\t\t\t\tbreak;\n\n\t\t\tcase 'attribute':\n\t\t\t\tif ( change.range.start.nodeAfter ) {\n\t\t\t\t\treferencePosition = [ 'table', 'tableRow', 'tableCell' ].includes( ( change.range.start.nodeAfter as Element ).name ) ?\n\t\t\t\t\t\tchange.range.start :\n\t\t\t\t\t\tnull;\n\t\t\t\t}\n\n\t\t\t\tbreak;\n\t\t}\n\n\t\tif ( !referencePosition ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst tableNode = ( referencePosition.nodeAfter && referencePosition.nodeAfter.is( 'element', 'table' ) ) ?\n\t\t\treferencePosition.nodeAfter : referencePosition.findAncestor( 'table' )!;\n\n\t\t// We iterate over the whole table looking for the nested tables that are also affected.\n\t\tfor ( const node of model.createRangeOn( tableNode ).getItems() ) {\n\t\t\tif ( !node.is( 'element', 'table' ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tif ( !getColumnGroupElement( node ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\taffectedTables.add( node );\n\t\t}\n\t}\n\n\treturn affectedTables;\n}\n\n/**\n * Calculates the percentage of the minimum column width given in pixels for a given table.\n *\n * @param modelTable A table model element.\n * @param editor The editor instance.\n * @returns The minimal column width in percentage.\n */\nexport function getColumnMinWidthAsPercentage( modelTable: Element, editor: Editor ): number {\n\treturn COLUMN_MIN_WIDTH_IN_PIXELS * 100 / getTableWidthInPixels( modelTable, editor );\n}\n\n/**\n * Calculates the table width in pixels.\n *\n * @param modelTable A table model element.\n * @param editor The editor instance.\n * @returns The width of the table in pixels.\n */\nexport function getTableWidthInPixels( modelTable: Element, editor: Editor ): number {\n\t// It is possible for a table to not have a <tbody> element - see #11878.\n\tconst referenceElement = getChildrenViewElement( modelTable, 'tbody', editor ) || getChildrenViewElement( modelTable, 'thead', editor );\n\tconst domReferenceElement = editor.editing.view.domConverter.mapViewToDom( referenceElement! )!;\n\n\treturn getElementWidthInPixels( domReferenceElement );\n}\n\n/**\n * Returns the a view element with a given name that is nested directly in a `<table>` element\n * related to a given `modelTable`.\n *\n * @param elementName Name of a view to be looked for, e.g. `'colgroup`', `'thead`'.\n * @returns Matched view or `undefined` otherwise.\n */\nfunction getChildrenViewElement( modelTable: Element, elementName: string, editor: Editor ) {\n\tconst viewFigure = editor.editing.mapper.toViewElement( modelTable )!;\n\tconst viewTable = [ ...viewFigure.getChildren() ]\n\t\t.find( ( node: ViewNode ): node is ViewElement & { name: 'table' } => node.is( 'element', 'table' ) )!;\n\n\treturn [ ...viewTable.getChildren() ]\n\t\t.find( ( node: ViewNode ): node is ViewElement => node.is( 'element', elementName ) );\n}\n\n/**\n * Returns the computed width (in pixels) of the DOM element without padding and borders.\n *\n * @param domElement A DOM element.\n * @returns The width of the DOM element in pixels.\n */\nexport function getElementWidthInPixels( domElement: HTMLElement ): number {\n\tconst styles = global.window.getComputedStyle( domElement );\n\n\t// In the 'border-box' box sizing algorithm, the element's width\n\t// already includes the padding and border width (#12335).\n\tif ( styles.boxSizing === 'border-box' ) {\n\t\treturn parseFloat( styles.width ) -\n\t\t\tparseFloat( styles.paddingLeft ) -\n\t\t\tparseFloat( styles.paddingRight ) -\n\t\t\tparseFloat( styles.borderLeftWidth ) -\n\t\t\tparseFloat( styles.borderRightWidth );\n\t} else {\n\t\treturn parseFloat( styles.width );\n\t}\n}\n\n/**\n * Returns the column indexes on the left and right edges of a cell. They differ if the cell spans\n * across multiple columns.\n *\n * @param cell A table cell model element.\n * @param tableUtils The Table Utils plugin instance.\n * @returns An object containing the indexes of the left and right edges of the cell.\n */\nexport function getColumnEdgesIndexes( cell: Element, tableUtils: TableUtils ): { leftEdge: number; rightEdge: number } {\n\tconst cellColumnIndex = tableUtils.getCellLocation( cell ).column;\n\tconst cellWidth = cell.getAttribute( 'colspan' ) as number || 1;\n\n\treturn {\n\t\tleftEdge: cellColumnIndex,\n\t\trightEdge: cellColumnIndex + cellWidth - 1\n\t};\n}\n\n/**\n * Rounds the provided value to a fixed-point number with defined number of digits after the decimal point.\n *\n * @param value A number to be rounded.\n * @returns The rounded number.\n */\nexport function toPrecision( value: number | string ): number {\n\tconst multiplier = Math.pow( 10, COLUMN_WIDTH_PRECISION );\n\tconst number = typeof value === 'number' ? value : parseFloat( value );\n\n\treturn Math.round( number * multiplier ) / multiplier;\n}\n\n/**\n * Clamps the number within the inclusive lower (min) and upper (max) bounds. Returned number is rounded using the\n * {@link ~toPrecision `toPrecision()`} function.\n *\n * @param number A number to be clamped.\n * @param min A lower bound.\n * @param max An upper bound.\n * @returns The clamped number.\n */\nexport function clamp( number: number, min: number, max: number ): number {\n\tif ( number <= min ) {\n\t\treturn toPrecision( min );\n\t}\n\n\tif ( number >= max ) {\n\t\treturn toPrecision( max );\n\t}\n\n\treturn toPrecision( number );\n}\n\n/**\n * Creates an array with defined length and fills all elements with defined value.\n *\n * @param length The length of the array.\n * @param value The value to fill the array with.\n * @returns An array with defined length and filled with defined value.\n */\nexport function createFilledArray<T>( length: number, value: T ): Array<T> {\n\treturn Array( length ).fill( value );\n}\n\n/**\n * Sums all array values that can be parsed to a float.\n *\n * @param array An array of numbers.\n * @returns The sum of all array values.\n */\nexport function sumArray( array: Array<number | string> ): number {\n\treturn array\n\t\t.map( value => typeof value === 'number' ? value : parseFloat( value ) )\n\t\t.filter( value => !Number.isNaN( value ) )\n\t\t.reduce( ( result, item ) => result + item, 0 );\n}\n\n/**\n * Makes sure that the sum of the widths from all columns is 100%. If the sum of all the widths is not equal 100%, all the widths are\n * changed proportionally so that they all sum back to 100%. If there are columns without specified width, the amount remaining\n * after assigning the known widths will be distributed equally between them.\n *\n * Currently, only widths provided as percentage values are supported.\n *\n * @param columnWidths An array of column widths.\n * @returns An array of column widths guaranteed to sum up to 100%.\n */\nexport function normalizeColumnWidths( columnWidths: Array<string> ): Array<string> {\n\tconst widths: Array<number | 'auto'> = columnWidths.map( width => {\n\t\t// Possible values are 'auto' or string ending with '%'\n\t\tif ( width === 'auto' ) {\n\t\t\treturn width;\n\t\t}\n\n\t\treturn parseFloat( width.replace( '%', '' ) );\n\t} );\n\n\tlet normalizedWidths: Array<number> = calculateMissingColumnWidths( widths );\n\tconst totalWidth = sumArray( normalizedWidths );\n\n\tif ( totalWidth !== 100 ) {\n\t\tnormalizedWidths = normalizedWidths\n\t\t\t// Adjust all the columns proportionally.\n\t\t\t.map( width => toPrecision( width * 100 / totalWidth ) )\n\t\t\t// Due to rounding of numbers it may happen that the sum of the widths of all columns will not be exactly 100%.\n\t\t\t// Therefore, the width of the last column is explicitly adjusted (narrowed or expanded), since all the columns\n\t\t\t// have been proportionally changed already.\n\t\t\t.map( ( columnWidth, columnIndex, width ) => {\n\t\t\t\tconst isLastColumn = columnIndex === width.length - 1;\n\n\t\t\t\tif ( !isLastColumn ) {\n\t\t\t\t\treturn columnWidth;\n\t\t\t\t}\n\n\t\t\t\tconst totalWidth = sumArray( width );\n\n\t\t\t\treturn toPrecision( columnWidth + 100 - totalWidth );\n\t\t\t} );\n\t}\n\n\treturn normalizedWidths.map( width => width + '%' );\n}\n\n/**\n * Initializes the column widths by parsing the attribute value and calculating the uninitialized column widths. The special value 'auto'\n * indicates that width for the column must be calculated. The width of such uninitialized column is calculated as follows:\n * - If there is enough free space in the table for all uninitialized columns to have at least the minimum allowed width for all of them,\n *   then set this width equally for all uninitialized columns.\n * - Otherwise, just set the minimum allowed width for all uninitialized columns. The sum of all column widths will be greater than 100%,\n *   but then it will be adjusted proportionally to 100% in {@link #normalizeColumnWidths `normalizeColumnWidths()`}.\n *\n * @param columnWidths An array of column widths.\n * @returns An array with 'auto' values replaced with calculated widths.\n */\nfunction calculateMissingColumnWidths( columnWidths: Array<number | string> ): Array<number> {\n\tconst numberOfUninitializedColumns = columnWidths.filter( columnWidth => columnWidth === 'auto' ).length;\n\n\tif ( numberOfUninitializedColumns === 0 ) {\n\t\treturn columnWidths.map( columnWidth => toPrecision( columnWidth ) );\n\t}\n\n\tconst totalWidthOfInitializedColumns = sumArray( columnWidths );\n\n\tconst widthForUninitializedColumn = Math.max(\n\t\t( 100 - totalWidthOfInitializedColumns ) / numberOfUninitializedColumns,\n\t\tCOLUMN_MIN_WIDTH_AS_PERCENTAGE\n\t);\n\n\treturn columnWidths\n\t\t.map( columnWidth => columnWidth === 'auto' ? widthForUninitializedColumn : columnWidth )\n\t\t.map( columnWidth => toPrecision( columnWidth ) );\n}\n\n/**\n * Calculates the total horizontal space taken by the cell. That includes:\n *  * width,\n *  * left and red padding,\n *  * border width.\n *\n * @param domCell A DOM cell element.\n * @returns Width in pixels without `px` at the end.\n */\nexport function getDomCellOuterWidth( domCell: HTMLElement ): number {\n\tconst styles = global.window.getComputedStyle( domCell );\n\n\t// In the 'border-box' box sizing algorithm, the element's width\n\t// already includes the padding and border width (#12335).\n\tif ( styles.boxSizing === 'border-box' ) {\n\t\treturn parseInt( styles.width );\n\t} else {\n\t\treturn parseFloat( styles.width ) +\n\t\t\tparseFloat( styles.paddingLeft ) +\n\t\t\tparseFloat( styles.paddingRight ) +\n\t\t\tparseFloat( styles.borderWidth );\n\t}\n}\n\n/**\n * Updates column elements to match columns widths.\n *\n * @param columns\n * @param tableColumnGroup\n * @param normalizedWidths\n * @param writer\n */\nexport function updateColumnElements(\n\tcolumns: Array<Element>,\n\ttableColumnGroup: Element,\n\tnormalizedWidths: Array<string>,\n\twriter: Writer\n): void {\n\tfor ( let i = 0; i < Math.max( normalizedWidths.length, columns.length ); i++ ) {\n\t\tconst column = columns[ i ];\n\t\tconst columnWidth = normalizedWidths[ i ];\n\n\t\tif ( !columnWidth ) {\n\t\t\t// Number of `<tableColumn>` elements exceeds actual number of columns.\n\t\t\twriter.remove( column );\n\t\t} else if ( !column ) {\n\t\t\t// There is fewer `<tableColumn>` elements than actual columns.\n\t\t\twriter.appendElement( 'tableColumn', { columnWidth }, tableColumnGroup );\n\t\t} else {\n\t\t\t// Update column width.\n\t\t\twriter.setAttribute( 'columnWidth', columnWidth, column );\n\t\t}\n\t}\n}\n\n/**\n * Returns a 'tableColumnGroup' element from the 'table'.\n *\n * @internal\n * @param element A 'table' or 'tableColumnGroup' element.\n * @returns A 'tableColumnGroup' element.\n */\nexport function getColumnGroupElement( element: Element ): Element {\n\tif ( element.is( 'element', 'tableColumnGroup' ) ) {\n\t\treturn element;\n\t}\n\n\tconst children = element.getChildren()!;\n\n\treturn Array\n\t\t.from( children )\n\t\t.find( element => element.is( 'element', 'tableColumnGroup' ) )! as Element;\n}\n\n/**\n * Returns an array of 'tableColumn' elements.\n *\n * @internal\n * @param element A 'table' or 'tableColumnGroup' element.\n * @returns An array of 'tableColumn' elements.\n */\nexport function getTableColumnElements( element: Element ): Array<Element> {\n\treturn Array.from( getColumnGroupElement( element ).getChildren() as IterableIterator<Element> );\n}\n\n/**\n * Returns an array of table column widths.\n *\n * @internal\n * @param element A 'table' or 'tableColumnGroup' element.\n * @returns An array of table column widths.\n */\nexport function getTableColumnsWidths( element: Element ): Array<string> {\n\treturn getTableColumnElements( element ).map( column => column.getAttribute( 'columnWidth' ) as string );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecolumnresize/tablewidthscommand\n */\n\nimport type { Element } from 'ckeditor5/src/engine';\nimport { Command } from 'ckeditor5/src/core';\nimport { normalizeColumnWidths } from './utils';\n\n/**\n * Command used by the {@link module:table/tablecolumnresize~TableColumnResize Table column resize feature} that\n * updates the width of the whole table as well as its individual columns.\n */\nexport default class TableWidthsCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\t// The command is always enabled as it doesn't care about the actual selection - table can be resized\n\t\t// even if the selection is elsewhere.\n\t\tthis.isEnabled = true;\n\t}\n\n\t/**\n\t * Updated the `tableWidth` attribute of the table and the `columnWidth` attribute of the columns of that table.\n\t */\n\tpublic override execute( options: TableWidthsCommandOptions = {} ): void {\n\t\tconst { model, plugins } = this.editor;\n\t\tlet {\n\t\t\ttable = model.document.selection.getSelectedElement()!,\n\t\t\tcolumnWidths,\n\t\t\ttableWidth\n\t\t} = options;\n\n\t\tif ( columnWidths ) {\n\t\t\t// For backwards compatibility, columnWidths might be an array or a string of comma-separated values.\n\t\t\tcolumnWidths = Array.isArray( columnWidths ) ?\n\t\t\t\tcolumnWidths :\n\t\t\t\tcolumnWidths.split( ',' );\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tif ( tableWidth ) {\n\t\t\t\twriter.setAttribute( 'tableWidth', tableWidth, table );\n\t\t\t} else {\n\t\t\t\twriter.removeAttribute( 'tableWidth', table );\n\t\t\t}\n\n\t\t\tconst tableColumnGroup = plugins\n\t\t\t\t.get( 'TableColumnResizeEditing' )\n\t\t\t\t.getColumnGroupElement( table )!;\n\n\t\t\tif ( !columnWidths && !tableColumnGroup ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !columnWidths ) {\n\t\t\t\treturn writer.remove( tableColumnGroup );\n\t\t\t}\n\n\t\t\tconst widths = normalizeColumnWidths( columnWidths as Array<string> );\n\n\t\t\tif ( !tableColumnGroup ) {\n\t\t\t\tconst colGroupElement = writer.createElement( 'tableColumnGroup' );\n\n\t\t\t\twidths.forEach( columnWidth => writer.appendElement( 'tableColumn', { columnWidth }, colGroupElement ) );\n\t\t\t\twriter.append( colGroupElement, table );\n\t\t\t} else {\n\t\t\t\tArray\n\t\t\t\t\t.from( tableColumnGroup.getChildren() )\n\t\t\t\t\t.forEach( ( column, index ) => writer.setAttribute( 'columnWidth', widths[ index ], column ) );\n\t\t\t}\n\t\t} );\n\t}\n}\n\nexport interface TableWidthsCommandOptions {\n\n\t/**\n\t * New value of the `columnWidths` attribute. Must be array of strings or string with comma-separated values.\n\t * If skipped, the column widths information will be deleted.\n\t */\n\tcolumnWidths?: Array<string> | string;\n\n\t/**\n\t * The new table width. If skipped, the model attribute will be removed.\n\t */\n\ttableWidth?: string;\n\n\t/**\n\t * The table that is having the columns resized.\n\t */\n\ttable?: Element;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecolumnresize/tablecolumnresizeediting\n */\n\nimport { throttle, isEqual } from 'lodash-es';\n\nimport {\n\tglobal,\n\tDomEmitterMixin,\n\ttype EventInfo,\n\ttype DomEmitter,\n\ttype ObservableChangeEvent\n} from 'ckeditor5/src/utils';\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\n\nimport type {\n\tDiffer,\n\tDomEventData,\n\tDowncastInsertEvent,\n\tDowncastWriter,\n\tElement,\n\tViewElement,\n\tViewNode\n} from 'ckeditor5/src/engine';\n\nimport MouseEventsObserver from '../../src/tablemouse/mouseeventsobserver';\nimport TableEditing from '../tableediting';\nimport TableUtils from '../tableutils';\nimport TableWalker from '../tablewalker';\n\nimport TableWidthsCommand from './tablewidthscommand';\n\nimport { downcastTableResizedClass, upcastColgroupElement } from './converters';\n\nimport {\n\tclamp,\n\tcreateFilledArray,\n\tsumArray,\n\tgetColumnEdgesIndexes,\n\tgetChangedResizedTables,\n\tgetColumnMinWidthAsPercentage,\n\tgetElementWidthInPixels,\n\tgetTableWidthInPixels,\n\tnormalizeColumnWidths,\n\ttoPrecision,\n\tgetDomCellOuterWidth,\n\tupdateColumnElements,\n\tgetColumnGroupElement,\n\tgetTableColumnElements,\n\tgetTableColumnsWidths\n} from './utils';\n\nimport { COLUMN_MIN_WIDTH_IN_PIXELS } from './constants';\nimport type TableColumnResize from '../tablecolumnresize';\n\ntype ResizingData = {\n\tcolumnPosition: number;\n\tflags: {\n\t\tisRightEdge: boolean;\n\t\tisTableCentered: boolean;\n\t\tisLtrContent: boolean;\n\t};\n\telements: {\n\t\tviewResizer: ViewElement;\n\t\tmodelTable: Element;\n\t\tviewFigure: ViewElement;\n\t\tviewColgroup: ViewElement;\n\t\tviewLeftColumn: ViewElement;\n\t\tviewRightColumn?: ViewElement;\n\t};\n\twidths: {\n\t\tviewFigureParentWidth: number;\n\t\tviewFigureWidth: number;\n\t\ttableWidth: number;\n\t\tleftColumnWidth: number;\n\t\trightColumnWidth?: number;\n\t};\n};\n\n/**\n * The table column resize editing plugin.\n */\nexport default class TableColumnResizeEditing extends Plugin {\n\t/**\n\t * A flag indicating if the column resizing is in progress.\n\t */\n\tprivate _isResizingActive: boolean;\n\n\t/**\n\t * A flag indicating if the column resizing is allowed. It is not allowed if the editor is in read-only\n\t * or comments-only mode or the `TableColumnResize` plugin is disabled.\n\t *\n\t * @observable\n\t * @internal\n\t */\n\tpublic declare _isResizingAllowed: boolean;\n\n\t/**\n\t * A temporary storage for the required data needed to correctly calculate the widths of the resized columns. This storage is\n\t * initialized when column resizing begins, and is purged upon completion.\n\t */\n\tprivate _resizingData: ResizingData | null;\n\n\t/**\n\t * DOM emitter.\n\t */\n\tprivate _domEmitter: DomEmitter;\n\n\t/**\n\t * A local reference to the {@link module:table/tableutils~TableUtils} plugin.\n\t */\n\tprivate _tableUtilsPlugin: TableUtils;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableEditing, TableUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableColumnResizeEditing' {\n\t\treturn 'TableColumnResizeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._isResizingActive = false;\n\t\tthis.set( '_isResizingAllowed', true );\n\t\tthis._resizingData = null;\n\t\tthis._domEmitter = new ( DomEmitterMixin() )();\n\t\tthis._tableUtilsPlugin = editor.plugins.get( 'TableUtils' );\n\n\t\tthis.on<ObservableChangeEvent<boolean>>( 'change:_isResizingAllowed', ( evt, name, value ) => {\n\t\t\t// Toggling the `ck-column-resize_disabled` class shows and hides the resizers through CSS.\n\t\t\teditor.editing.view.change( writer => {\n\t\t\t\twriter[ value ? 'removeClass' : 'addClass' ]( 'ck-column-resize_disabled', editor.editing.view.document.getRoot()! );\n\t\t\t} );\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tthis._extendSchema();\n\t\tthis._registerPostFixer();\n\t\tthis._registerConverters();\n\t\tthis._registerResizingListeners();\n\t\tthis._registerResizerInserter();\n\n\t\tconst editor = this.editor;\n\t\tconst columnResizePlugin: TableColumnResize = editor.plugins.get( 'TableColumnResize' );\n\t\tconst tableEditing: TableEditing = editor.plugins.get( 'TableEditing' );\n\n\t\ttableEditing.registerAdditionalSlot( {\n\t\t\tfilter: element => element.is( 'element', 'tableColumnGroup' ),\n\t\t\tpositionOffset: 0\n\t\t} );\n\n\t\tconst tableWidthsCommand = new TableWidthsCommand( editor );\n\n\t\t// For backwards compatibility we have two commands that perform exactly the same operation.\n\t\teditor.commands.add( 'resizeTableWidth', tableWidthsCommand );\n\t\teditor.commands.add( 'resizeColumnWidths', tableWidthsCommand );\n\n\t\t// Currently the states of column resize and table resize (which is actually the last column resize) features\n\t\t// are bound together. They can be separated in the future by adding distinct listeners and applying\n\t\t// different CSS classes (e.g. `ck-column-resize_disabled` and `ck-table-resize_disabled`) to the editor root.\n\t\t// See #12148 for the details.\n\t\tthis.bind( '_isResizingAllowed' ).to(\n\t\t\teditor, 'isReadOnly',\n\t\t\tcolumnResizePlugin, 'isEnabled',\n\t\t\ttableWidthsCommand, 'isEnabled',\n\t\t\t( isEditorReadOnly, isPluginEnabled, isTableWidthsCommandCommandEnabled ) =>\n\t\t\t\t!isEditorReadOnly && isPluginEnabled && isTableWidthsCommandCommandEnabled\n\t\t);\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tthis._domEmitter.stopListening();\n\t\tsuper.destroy();\n\t}\n\n\t/**\n\t * Returns a 'tableColumnGroup' element from the 'table'.\n\t *\n\t * @param element A 'table' or 'tableColumnGroup' element.\n\t * @returns A 'tableColumnGroup' element.\n\t */\n\tpublic getColumnGroupElement( element: Element ): Element | undefined {\n\t\treturn getColumnGroupElement( element );\n\t}\n\n\t/**\n\t * Returns an array of 'tableColumn' elements.\n\t *\n\t * @param element A 'table' or 'tableColumnGroup' element.\n\t * @returns An array of 'tableColumn' elements.\n\t */\n\tpublic getTableColumnElements( element: Element ): Array<Element> {\n\t\treturn getTableColumnElements( element );\n\t}\n\n\t/**\n\t * Returns an array of table column widths.\n\t *\n\t * @param element A 'table' or 'tableColumnGroup' element.\n\t * @returns An array of table column widths.\n\t */\n\tpublic getTableColumnsWidths( element: Element ): Array<string> {\n\t\treturn getTableColumnsWidths( element );\n\t}\n\n\t/**\n\t * Registers new attributes for a table model element.\n\t */\n\tprivate _extendSchema() {\n\t\tthis.editor.model.schema.extend( 'table', {\n\t\t\tallowAttributes: [ 'tableWidth' ]\n\t\t} );\n\n\t\tthis.editor.model.schema.register( 'tableColumnGroup', {\n\t\t\tallowIn: 'table',\n\t\t\tisLimit: true\n\t\t} );\n\n\t\tthis.editor.model.schema.register( 'tableColumn', {\n\t\t\tallowIn: 'tableColumnGroup',\n\t\t\tallowAttributes: [ 'columnWidth' ],\n\t\t\tisLimit: true\n\t\t} );\n\t}\n\n\t/**\n\t * Registers table column resize post-fixer.\n\t *\n\t * It checks if the change from the differ concerns a table-related element or attribute. For detected changes it:\n\t *  * Adjusts the `columnWidths` attribute to guarantee that the sum of the widths from all columns is 100%.\n\t *  * Checks if the `columnWidths` attribute gets updated accordingly after columns have been added or removed.\n\t */\n\tprivate _registerPostFixer() {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tmodel.document.registerPostFixer( writer => {\n\t\t\tlet changed = false;\n\n\t\t\tfor ( const table of getChangedResizedTables( model ) ) {\n\t\t\t\tconst tableColumnGroup = this.getColumnGroupElement( table )!;\n\t\t\t\tconst columns = this.getTableColumnElements( tableColumnGroup );\n\t\t\t\tconst columnWidths = this.getTableColumnsWidths( tableColumnGroup );\n\n\t\t\t\t// Adjust the `columnWidths` attribute to guarantee that the sum of the widths from all columns is 100%.\n\t\t\t\tlet normalizedWidths = normalizeColumnWidths( columnWidths );\n\n\t\t\t\t// If the number of columns has changed, then we need to adjust the widths of the affected columns.\n\t\t\t\tnormalizedWidths = adjustColumnWidths( normalizedWidths, table, this );\n\n\t\t\t\tif ( isEqual( columnWidths, normalizedWidths ) ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tupdateColumnElements( columns, tableColumnGroup, normalizedWidths, writer );\n\n\t\t\t\tchanged = true;\n\t\t\t}\n\n\t\t\treturn changed;\n\t\t} );\n\n\t\t/**\n\t\t * Adjusts if necessary the `columnWidths` in case if the number of column has changed.\n\t\t *\n\t\t * @param columnWidths Note: this array **may be modified** by the function.\n\t\t * @param table Table to be checked.\n\t\t */\n\t\tfunction adjustColumnWidths( columnWidths: Array<string>, table: Element, plugin: TableColumnResizeEditing ): Array<string> {\n\t\t\tconst newTableColumnsCount = plugin._tableUtilsPlugin.getColumns( table );\n\t\t\tconst columnsCountDelta = newTableColumnsCount - columnWidths.length;\n\n\t\t\tif ( columnsCountDelta === 0 ) {\n\t\t\t\treturn columnWidths;\n\t\t\t}\n\n\t\t\tconst widths: Array<number> = columnWidths.map( width => Number( width.replace( '%', '' ) ) );\n\n\t\t\t// Collect all cells that are affected by the change.\n\t\t\tconst cellSet = getAffectedCells( plugin.editor.model.document.differ, table ) as Set<Element>;\n\n\t\t\tfor ( const cell of cellSet ) {\n\t\t\t\tconst currentColumnsDelta = newTableColumnsCount - widths.length;\n\n\t\t\t\tif ( currentColumnsDelta === 0 ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// If the column count in the table changed, adjust the widths of the affected columns.\n\t\t\t\tconst hasMoreColumns = currentColumnsDelta > 0;\n\t\t\t\tconst currentColumnIndex = plugin._tableUtilsPlugin.getCellLocation( cell ).column;\n\n\t\t\t\tif ( hasMoreColumns ) {\n\t\t\t\t\tconst columnMinWidthAsPercentage = getColumnMinWidthAsPercentage( table, plugin.editor );\n\t\t\t\t\tconst columnWidthsToInsert = createFilledArray( currentColumnsDelta, columnMinWidthAsPercentage );\n\n\t\t\t\t\twidths.splice( currentColumnIndex, 0, ...columnWidthsToInsert );\n\t\t\t\t} else {\n\t\t\t\t\t// Moves the widths of the removed columns to the preceding one.\n\t\t\t\t\t// Other editors either reduce the width of the whole table or adjust the widths\n\t\t\t\t\t// proportionally, so change of this behavior can be considered in the future.\n\t\t\t\t\tconst removedColumnWidths = widths.splice( currentColumnIndex, Math.abs( currentColumnsDelta ) );\n\n\t\t\t\t\twidths[ currentColumnIndex ] += sumArray( removedColumnWidths );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn widths.map( width => width + '%' );\n\t\t}\n\n\t\t/**\n\t\t * Returns a set of cells that have been changed in a given table.\n\t\t */\n\t\tfunction getAffectedCells( differ: Differ, table: Element ): Set<Element> {\n\t\t\tconst cellSet = new Set<Element>();\n\n\t\t\tfor ( const change of differ.getChanges() ) {\n\t\t\t\tif (\n\t\t\t\t\tchange.type == 'insert' &&\n\t\t\t\t\tchange.position.nodeAfter &&\n\t\t\t\t\t( change.position.nodeAfter as Element ).name == 'tableCell' &&\n\t\t\t\t\tchange.position.nodeAfter.getAncestors().includes( table )\n\t\t\t\t) {\n\t\t\t\t\tcellSet.add( change.position.nodeAfter as Element );\n\t\t\t\t} else if ( change.type == 'remove' ) {\n\t\t\t\t\t// If the first cell was removed, use the node after the change position instead.\n\t\t\t\t\tconst referenceNode = ( change.position.nodeBefore || change.position.nodeAfter ) as Element;\n\n\t\t\t\t\tif ( referenceNode.name == 'tableCell' && referenceNode.getAncestors().includes( table ) ) {\n\t\t\t\t\t\tcellSet.add( referenceNode );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn cellSet;\n\t\t}\n\t}\n\n\t/**\n\t * Registers table column resize converters.\n\t */\n\tprivate _registerConverters() {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\n\t\t// Table width style\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'figure',\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\twidth: /[\\s\\S]+/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tkey: 'tableWidth',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getStyle( 'width' )\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'downcast' ).attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'table',\n\t\t\t\tkey: 'tableWidth'\n\t\t\t},\n\t\t\tview: ( width: string ) => ( {\n\t\t\t\tname: 'figure',\n\t\t\t\tkey: 'style',\n\t\t\t\tvalue: {\n\t\t\t\t\twidth\n\t\t\t\t}\n\t\t\t} )\n\t\t} );\n\n\t\tconversion.elementToElement( { model: 'tableColumnGroup', view: 'colgroup' } );\n\t\tconversion.elementToElement( { model: 'tableColumn', view: 'col' } );\n\t\tconversion.for( 'downcast' ).add( downcastTableResizedClass() );\n\t\tconversion.for( 'upcast' ).add( upcastColgroupElement( this._tableUtilsPlugin ) );\n\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'col',\n\t\t\t\tstyles: {\n\t\t\t\t\twidth: /.*/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'columnWidth',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tconst viewColWidth = viewElement.getStyle( 'width' );\n\n\t\t\t\t\tif ( !viewColWidth || !viewColWidth.endsWith( '%' ) ) {\n\t\t\t\t\t\treturn 'auto';\n\t\t\t\t\t}\n\n\t\t\t\t\treturn viewColWidth;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t\tconversion.for( 'downcast' ).attributeToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tname: 'tableColumn',\n\t\t\t\tkey: 'columnWidth'\n\t\t\t},\n\t\t\tview: width => ( { key: 'style', value: { width } } )\n\t\t} );\n\t}\n\n\t/**\n\t * Registers listeners to handle resizing process.\n\t */\n\tprivate _registerResizingListeners() {\n\t\tconst editingView = this.editor.editing.view;\n\n\t\teditingView.addObserver( MouseEventsObserver );\n\t\teditingView.document.on( 'mousedown', this._onMouseDownHandler.bind( this ), { priority: 'high' } );\n\n\t\tthis._domEmitter.listenTo( global.window.document, 'mousemove', throttle( this._onMouseMoveHandler.bind( this ), 50 ) );\n\t\tthis._domEmitter.listenTo( global.window.document, 'mouseup', this._onMouseUpHandler.bind( this ) );\n\t}\n\n\t/**\n\t * Handles the `mousedown` event on column resizer element:\n\t *  * calculates the initial column pixel widths,\n\t *  * inserts the `<colgroup>` element if it is not present in the `<table>`,\n\t *  * puts the necessary data in the temporary storage,\n\t *  * applies the attributes to the `<table>` view element.\n\t *\n\t * @param eventInfo An object containing information about the fired event.\n\t * @param domEventData The data related to the DOM event.\n\t */\n\tprivate _onMouseDownHandler( eventInfo: EventInfo, domEventData: DomEventData ) {\n\t\tconst target = domEventData.target;\n\n\t\tif ( !target.hasClass( 'ck-table-column-resizer' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !this._isResizingAllowed ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdomEventData.preventDefault();\n\t\teventInfo.stop();\n\n\t\tconst editor = this.editor;\n\t\tconst modelTable = editor.editing.mapper.toModelElement( target.findAncestor( 'figure' )! )!;\n\n\t\t// The column widths are calculated upon mousedown to allow lazy applying the `columnWidths` attribute on the table.\n\t\tconst columnWidthsInPx = _calculateDomColumnWidths( modelTable, this._tableUtilsPlugin, editor );\n\t\tconst viewTable = target.findAncestor( 'table' )!;\n\t\tconst editingView = editor.editing.view;\n\n\t\t// Insert colgroup for the table that is resized for the first time.\n\t\tif ( !Array.from( viewTable.getChildren() ).find( viewCol => viewCol.is( 'element', 'colgroup' ) ) ) {\n\t\t\teditingView.change( viewWriter => {\n\t\t\t\t_insertColgroupElement( viewWriter, columnWidthsInPx, viewTable );\n\t\t\t} );\n\t\t}\n\n\t\tthis._isResizingActive = true;\n\t\tthis._resizingData = this._getResizingData( domEventData, columnWidthsInPx );\n\n\t\t// At this point we change only the editor view - we don't want other users to see our changes yet,\n\t\t// so we can't apply them in the model.\n\t\teditingView.change( writer => _applyResizingAttributesToTable( writer, viewTable, this._resizingData! ) );\n\n\t\t/**\n\t\t * Calculates the DOM columns' widths. It is done by taking the width of the widest cell\n\t\t * from each table column (we rely on the  {@link module:table/tablewalker~TableWalker}\n\t\t * to determine which column the cell belongs to).\n\t\t *\n\t\t * @param modelTable A table which columns should be measured.\n\t\t * @param tableUtils The Table Utils plugin instance.\n\t\t * @param editor The editor instance.\n\t\t * @returns Columns' widths expressed in pixels (without unit).\n\t\t */\n\t\tfunction _calculateDomColumnWidths( modelTable: Element, tableUtilsPlugin: TableUtils, editor: Editor ) {\n\t\t\tconst columnWidthsInPx = Array( tableUtilsPlugin.getColumns( modelTable ) );\n\t\t\tconst tableWalker = new TableWalker( modelTable );\n\n\t\t\tfor ( const cellSlot of tableWalker ) {\n\t\t\t\tconst viewCell = editor.editing.mapper.toViewElement( cellSlot.cell )!;\n\t\t\t\tconst domCell = editor.editing.view.domConverter.mapViewToDom( viewCell )!;\n\t\t\t\tconst domCellWidth = getDomCellOuterWidth( domCell );\n\n\t\t\t\tif ( !columnWidthsInPx[ cellSlot.column ] || domCellWidth < columnWidthsInPx[ cellSlot.column ] ) {\n\t\t\t\t\tcolumnWidthsInPx[ cellSlot.column ] = toPrecision( domCellWidth );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn columnWidthsInPx;\n\t\t}\n\n\t\t/**\n\t\t * Creates a `<colgroup>` element with `<col>`s and inserts it into a given view table.\n\t\t *\n\t\t * @param viewWriter A writer instance.\n\t\t * @param columnWidthsInPx Column widths.\n\t\t * @param viewTable A table view element.\n\t\t */\n\t\tfunction _insertColgroupElement( viewWriter: DowncastWriter, columnWidthsInPx: Array<number>, viewTable: ViewElement ) {\n\t\t\tconst colgroup = viewWriter.createContainerElement( 'colgroup' );\n\n\t\t\tfor ( let i = 0; i < columnWidthsInPx.length; i++ ) {\n\t\t\t\tconst viewColElement = viewWriter.createEmptyElement( 'col' );\n\t\t\t\tconst columnWidthInPc = `${ toPrecision( columnWidthsInPx[ i ] / sumArray( columnWidthsInPx ) * 100 ) }%`;\n\n\t\t\t\tviewWriter.setStyle( 'width', columnWidthInPc, viewColElement );\n\t\t\t\tviewWriter.insert( viewWriter.createPositionAt( colgroup, 'end' ), viewColElement );\n\t\t\t}\n\n\t\t\tviewWriter.insert( viewWriter.createPositionAt( viewTable, 0 ), colgroup );\n\t\t}\n\n\t\t/**\n\t\t * Applies the style and classes to the view table as the resizing begun.\n\t\t *\n\t\t * @param viewWriter A writer instance.\n\t\t * @param viewTable A table containing the clicked resizer.\n\t\t * @param resizingData Data related to the resizing.\n\t\t */\n\t\tfunction _applyResizingAttributesToTable( viewWriter: DowncastWriter, viewTable: ViewElement, resizingData: ResizingData ) {\n\t\t\tconst figureInitialPcWidth = resizingData.widths.viewFigureWidth / resizingData.widths.viewFigureParentWidth;\n\n\t\t\tviewWriter.addClass( 'ck-table-resized', viewTable );\n\t\t\tviewWriter.addClass( 'ck-table-column-resizer__active', resizingData.elements.viewResizer );\n\t\t\tviewWriter.setStyle( 'width', `${ toPrecision( figureInitialPcWidth * 100 ) }%`, viewTable.findAncestor( 'figure' )! );\n\t\t}\n\t}\n\n\t/**\n\t * Handles the `mousemove` event.\n\t *  * If resizing process is not in progress, it does nothing.\n\t *  * If resizing is active but not allowed, it stops the resizing process instantly calling the `mousedown` event handler.\n\t *  * Otherwise it dynamically updates the widths of the resized columns.\n\t *\n\t * @param eventInfo An object containing information about the fired event.\n\t * @param mouseEventData The native DOM event.\n\t */\n\tprivate _onMouseMoveHandler( eventInfo: EventInfo, mouseEventData: MouseEvent ) {\n\t\tif ( !this._isResizingActive ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( !this._isResizingAllowed ) {\n\t\t\tthis._onMouseUpHandler();\n\n\t\t\treturn;\n\t\t}\n\n\t\tconst {\n\t\t\tcolumnPosition,\n\t\t\tflags: {\n\t\t\t\tisRightEdge,\n\t\t\t\tisTableCentered,\n\t\t\t\tisLtrContent\n\t\t\t},\n\t\t\telements: {\n\t\t\t\tviewFigure,\n\t\t\t\tviewLeftColumn,\n\t\t\t\tviewRightColumn\n\t\t\t},\n\t\t\twidths: {\n\t\t\t\tviewFigureParentWidth,\n\t\t\t\ttableWidth,\n\t\t\t\tleftColumnWidth,\n\t\t\t\trightColumnWidth\n\t\t\t}\n\t\t} = this._resizingData!;\n\n\t\tconst dxLowerBound = -leftColumnWidth + COLUMN_MIN_WIDTH_IN_PIXELS;\n\n\t\tconst dxUpperBound = isRightEdge ?\n\t\t\tviewFigureParentWidth - tableWidth :\n\t\t\trightColumnWidth! - COLUMN_MIN_WIDTH_IN_PIXELS;\n\n\t\t// The multiplier is needed for calculating the proper movement offset:\n\t\t// - it should negate the sign if content language direction is right-to-left,\n\t\t// - it should double the offset if the table edge is resized and table is centered.\n\t\tconst multiplier = ( isLtrContent ? 1 : -1 ) * ( isRightEdge && isTableCentered ? 2 : 1 );\n\n\t\tconst dx = clamp(\n\t\t\t( mouseEventData.clientX - columnPosition ) * multiplier,\n\t\t\tMath.min( dxLowerBound, 0 ),\n\t\t\tMath.max( dxUpperBound, 0 )\n\t\t);\n\n\t\tif ( dx === 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.editor.editing.view.change( writer => {\n\t\t\tconst leftColumnWidthAsPercentage = toPrecision( ( leftColumnWidth + dx ) * 100 / tableWidth );\n\n\t\t\twriter.setStyle( 'width', `${ leftColumnWidthAsPercentage }%`, viewLeftColumn );\n\n\t\t\tif ( isRightEdge ) {\n\t\t\t\tconst tableWidthAsPercentage = toPrecision( ( tableWidth + dx ) * 100 / viewFigureParentWidth );\n\n\t\t\t\twriter.setStyle( 'width', `${ tableWidthAsPercentage }%`, viewFigure );\n\t\t\t} else {\n\t\t\t\tconst rightColumnWidthAsPercentage = toPrecision( ( rightColumnWidth! - dx ) * 100 / tableWidth );\n\n\t\t\t\twriter.setStyle( 'width', `${ rightColumnWidthAsPercentage }%`, viewRightColumn! );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Handles the `mouseup` event.\n\t *  * If resizing process is not in progress, it does nothing.\n\t *  * If resizing is active but not allowed, it cancels the resizing process restoring the original widths.\n\t *  * Otherwise it propagates the changes from view to the model by executing the adequate commands.\n\t */\n\tprivate _onMouseUpHandler() {\n\t\tif ( !this._isResizingActive ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst {\n\t\t\tviewResizer,\n\t\t\tmodelTable,\n\t\t\tviewFigure,\n\t\t\tviewColgroup\n\t\t} = this._resizingData!.elements;\n\n\t\tconst editor = this.editor;\n\t\tconst editingView = editor.editing.view;\n\n\t\tconst tableColumnGroup = this.getColumnGroupElement( modelTable );\n\t\tconst viewColumns: Array<ViewElement> = Array\n\t\t\t.from( viewColgroup.getChildren() )\n\t\t\t.filter( ( column: ViewNode ): column is ViewElement => column.is( 'view:element' ) );\n\n\t\tconst columnWidthsAttributeOld = tableColumnGroup ?\n\t\t\tthis.getTableColumnsWidths( tableColumnGroup )! :\n\t\t\tnull;\n\n\t\tconst columnWidthsAttributeNew = viewColumns.map( column => column.getStyle( 'width' ) );\n\n\t\tconst isColumnWidthsAttributeChanged = !isEqual( columnWidthsAttributeOld, columnWidthsAttributeNew );\n\n\t\tconst tableWidthAttributeOld = modelTable.getAttribute( 'tableWidth' ) as string;\n\t\tconst tableWidthAttributeNew = viewFigure.getStyle( 'width' )!;\n\n\t\tconst isTableWidthAttributeChanged = tableWidthAttributeOld !== tableWidthAttributeNew;\n\n\t\tif ( isColumnWidthsAttributeChanged || isTableWidthAttributeChanged ) {\n\t\t\tif ( this._isResizingAllowed ) {\n\t\t\t\teditor.execute( 'resizeTableWidth', {\n\t\t\t\t\ttable: modelTable,\n\t\t\t\t\ttableWidth: `${ toPrecision( tableWidthAttributeNew ) }%`,\n\t\t\t\t\tcolumnWidths: columnWidthsAttributeNew\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\t// In read-only mode revert all changes in the editing view. The model is not touched so it does not need to be restored.\n\t\t\t\t// This case can occur if the read-only mode kicks in during the resizing process.\n\t\t\t\teditingView.change( writer => {\n\t\t\t\t\t// If table had resized columns before, restore the previous column widths.\n\t\t\t\t\t// Otherwise clean up the view from the temporary column resizing markup.\n\t\t\t\t\tif ( columnWidthsAttributeOld ) {\n\t\t\t\t\t\tfor ( const viewCol of viewColumns ) {\n\t\t\t\t\t\t\twriter.setStyle( 'width', columnWidthsAttributeOld.shift()!, viewCol );\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.remove( viewColgroup );\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( isTableWidthAttributeChanged ) {\n\t\t\t\t\t\t// If the whole table was already resized before, restore the previous table width.\n\t\t\t\t\t\t// Otherwise clean up the view from the temporary table resizing markup.\n\t\t\t\t\t\tif ( tableWidthAttributeOld ) {\n\t\t\t\t\t\t\twriter.setStyle( 'width', tableWidthAttributeOld, viewFigure );\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\twriter.removeStyle( 'width', viewFigure );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// If a table and its columns weren't resized before,\n\t\t\t\t\t// prune the remaining common resizing markup.\n\t\t\t\t\tif ( !columnWidthsAttributeOld && !tableWidthAttributeOld ) {\n\t\t\t\t\t\twriter.removeClass(\n\t\t\t\t\t\t\t'ck-table-resized',\n\t\t\t\t\t\t\t[ ... viewFigure.getChildren() as IterableIterator<ViewElement> ].find( element => element.name === 'table' )!\n\t\t\t\t\t\t);\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t}\n\t\t}\n\n\t\teditingView.change( writer => {\n\t\t\twriter.removeClass( 'ck-table-column-resizer__active', viewResizer );\n\t\t} );\n\n\t\tthis._isResizingActive = false;\n\t\tthis._resizingData = null;\n\t}\n\n\t/**\n\t * Retrieves and returns required data needed for the resizing process.\n\t *\n\t * @param domEventData The data of the `mousedown` event.\n\t * @param columnWidths The current widths of the columns.\n\t * @returns The data needed for the resizing process.\n\t */\n\tprivate _getResizingData( domEventData: DomEventData, columnWidths: Array<number> ): ResizingData {\n\t\tconst editor = this.editor;\n\n\t\tconst columnPosition = ( domEventData.domEvent as Event & { clientX: number } ).clientX;\n\n\t\tconst viewResizer = domEventData.target;\n\t\tconst viewLeftCell = viewResizer.findAncestor( 'td' )! || viewResizer.findAncestor( 'th' )!;\n\t\tconst modelLeftCell = editor.editing.mapper.toModelElement( viewLeftCell )!;\n\t\tconst modelTable = modelLeftCell.findAncestor( 'table' )!;\n\n\t\tconst leftColumnIndex = getColumnEdgesIndexes( modelLeftCell, this._tableUtilsPlugin ).rightEdge;\n\t\tconst lastColumnIndex = this._tableUtilsPlugin.getColumns( modelTable ) - 1;\n\n\t\tconst isRightEdge = leftColumnIndex === lastColumnIndex;\n\t\tconst isTableCentered = !modelTable.hasAttribute( 'tableAlignment' );\n\t\tconst isLtrContent = editor.locale.contentLanguageDirection !== 'rtl';\n\n\t\tconst viewTable = viewLeftCell.findAncestor( 'table' )!;\n\t\tconst viewFigure = viewTable.findAncestor( 'figure' ) as ViewElement;\n\t\tconst viewColgroup = [ ...viewTable.getChildren() as IterableIterator<ViewElement> ]\n\t\t\t.find( viewCol => viewCol.is( 'element', 'colgroup' ) )!;\n\t\tconst viewLeftColumn = viewColgroup.getChild( leftColumnIndex ) as ViewElement;\n\t\tconst viewRightColumn = isRightEdge ? undefined : viewColgroup.getChild( leftColumnIndex + 1 ) as ViewElement;\n\n\t\tconst viewFigureParentWidth = getElementWidthInPixels(\n\t\t\teditor.editing.view.domConverter.mapViewToDom( viewFigure.parent! ) as HTMLElement\n\t\t);\n\t\tconst viewFigureWidth = getElementWidthInPixels( editor.editing.view.domConverter.mapViewToDom( viewFigure )! );\n\t\tconst tableWidth = getTableWidthInPixels( modelTable, editor );\n\t\tconst leftColumnWidth = columnWidths[ leftColumnIndex ];\n\t\tconst rightColumnWidth = isRightEdge ? undefined : columnWidths[ leftColumnIndex + 1 ];\n\n\t\treturn {\n\t\t\tcolumnPosition,\n\t\t\tflags: {\n\t\t\t\tisRightEdge,\n\t\t\t\tisTableCentered,\n\t\t\t\tisLtrContent\n\t\t\t},\n\t\t\telements: {\n\t\t\t\tviewResizer,\n\t\t\t\tmodelTable,\n\t\t\t\tviewFigure,\n\t\t\t\tviewColgroup,\n\t\t\t\tviewLeftColumn,\n\t\t\t\tviewRightColumn\n\t\t\t},\n\t\t\twidths: {\n\t\t\t\tviewFigureParentWidth,\n\t\t\t\tviewFigureWidth,\n\t\t\t\ttableWidth,\n\t\t\t\tleftColumnWidth,\n\t\t\t\trightColumnWidth\n\t\t\t}\n\t\t};\n\t}\n\n\t/**\n\t * Registers a listener ensuring that each resizable cell have a resizer handle.\n\t */\n\tprivate _registerResizerInserter() {\n\t\tthis.editor.conversion.for( 'editingDowncast' ).add( dispatcher => {\n\t\t\tdispatcher.on<DowncastInsertEvent<Element>>( 'insert:tableCell', ( evt, data, conversionApi ) => {\n\t\t\t\tconst modelElement = data.item;\n\t\t\t\tconst viewElement = conversionApi.mapper.toViewElement( modelElement );\n\t\t\t\tconst viewWriter = conversionApi.writer;\n\n\t\t\t\tviewWriter.insert(\n\t\t\t\t\tviewWriter.createPositionAt( viewElement!, 'end' ),\n\t\t\t\t\tviewWriter.createUIElement( 'div', { class: 'ck-table-column-resizer' } )\n\t\t\t\t);\n\t\t\t}, { priority: 'lowest' } );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecolumnresize/converters\n */\n\nimport type { DowncastDispatcher, UpcastDispatcher, ViewElement } from 'ckeditor5/src/engine';\nimport type TableUtils from '../tableutils';\nimport {\n\tnormalizeColumnWidths,\n\tupdateColumnElements,\n\tgetColumnGroupElement,\n\tgetTableColumnElements,\n\tgetTableColumnsWidths\n} from './utils';\n\n/**\n * Returns a upcast helper that ensures the number of `<tableColumn>` elements corresponds to the actual number of columns in the table,\n * because the input data might have too few or too many <col> elements.\n */\nexport function upcastColgroupElement( tableUtilsPlugin: TableUtils ): ( dispatcher: UpcastDispatcher ) => void {\n\treturn dispatcher => dispatcher.on( 'element:colgroup', ( evt, data, conversionApi ) => {\n\t\tconst modelTable = data.modelCursor.findAncestor( 'table' );\n\t\tconst tableColumnGroup = getColumnGroupElement( modelTable );\n\n\t\tif ( !tableColumnGroup ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst columnElements = getTableColumnElements( tableColumnGroup );\n\t\tlet columnWidths = getTableColumnsWidths( tableColumnGroup );\n\t\tconst columnsCount = tableUtilsPlugin.getColumns( modelTable );\n\n\t\tcolumnWidths = Array.from( { length: columnsCount }, ( _, index ) => columnWidths[ index ] || 'auto' );\n\n\t\tif ( columnWidths.length != columnElements.length || columnWidths.includes( 'auto' ) ) {\n\t\t\tupdateColumnElements( columnElements, tableColumnGroup, normalizeColumnWidths( columnWidths ), conversionApi.writer );\n\t\t}\n\t}, { priority: 'low' } );\n}\n\n/**\n * Returns downcast helper for adding `ck-table-resized` class if there is a `<tableColumnGroup>` element inside the table.\n */\nexport function downcastTableResizedClass(): ( dispatcher: DowncastDispatcher ) => void {\n\treturn dispatcher => dispatcher.on( 'insert:table', ( evt, data, conversionApi ) => {\n\t\tconst viewWriter = conversionApi.writer;\n\t\tconst modelTable = data.item;\n\t\tconst viewElement: ViewElement = conversionApi.mapper.toViewElement( modelTable );\n\n\t\tconst viewTable = viewElement.is( 'element', 'table' ) ?\n\t\t\tviewElement :\n\t\t\tArray.from( viewElement.getChildren() ).find( viewChild => viewChild.is( 'element', 'table' ) );\n\n\t\tconst tableColumnGroup = getColumnGroupElement( data.item );\n\n\t\tif ( tableColumnGroup ) {\n\t\t\tviewWriter.addClass( 'ck-table-resized', viewTable );\n\t\t} else {\n\t\t\tviewWriter.removeClass( 'ck-table-resized', viewTable );\n\t\t}\n\t}, { priority: 'low' } );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./tablecolumnresize.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M19 9v10h-2v-8h-2V9h4zM4 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H10a1 1 0 0 1-1-1V11H4v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H3a1 1 0 0 1 1 1v4.5z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/headingbuttonsui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport { getLocalizedOptions } from './utils';\nimport type { HeadingOption } from './headingconfig';\nimport type HeadingCommand from './headingcommand';\n\nimport iconHeading1 from '../theme/icons/heading1.svg';\nimport iconHeading2 from '../theme/icons/heading2.svg';\nimport iconHeading3 from '../theme/icons/heading3.svg';\nimport iconHeading4 from '../theme/icons/heading4.svg';\nimport iconHeading5 from '../theme/icons/heading5.svg';\nimport iconHeading6 from '../theme/icons/heading6.svg';\n\nconst defaultIcons: Record<string, string> = {\n\theading1: iconHeading1,\n\theading2: iconHeading2,\n\theading3: iconHeading3,\n\theading4: iconHeading4,\n\theading5: iconHeading5,\n\theading6: iconHeading6\n};\n\n/**\n * The `HeadingButtonsUI` plugin defines a set of UI buttons that can be used instead of the\n * standard drop down component.\n *\n * This feature is not enabled by default by the {@link module:heading/heading~Heading} plugin and needs to be\n * installed manually to the editor configuration.\n *\n * Plugin introduces button UI elements, which names are same as `model` property from {@link module:heading/headingconfig~HeadingOption}.\n *\n * ```ts\n * ClassicEditor\n *   .create( {\n *     plugins: [ ..., Heading, Paragraph, HeadingButtonsUI, ParagraphButtonUI ]\n *     heading: {\n *       options: [\n *         { model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },\n *         { model: 'heading1', view: 'h2', title: 'Heading 1', class: 'ck-heading_heading1' },\n *         { model: 'heading2', view: 'h3', title: 'Heading 2', class: 'ck-heading_heading2' },\n *         { model: 'heading3', view: 'h4', title: 'Heading 3', class: 'ck-heading_heading3' }\n *       ]\n *      },\n *      toolbar: [ 'paragraph', 'heading1', 'heading2', 'heading3' ]\n *   } )\n *   .then( ... )\n *   .catch( ... );\n * ```\n *\n * NOTE: The `'paragraph'` button is defined in by the {@link module:paragraph/paragraphbuttonui~ParagraphButtonUI} plugin\n * which needs to be loaded manually as well.\n *\n * It is possible to use custom icons by providing `icon` config option in {@link module:heading/headingconfig~HeadingOption}.\n * For the default configuration standard icons are used.\n */\nexport default class HeadingButtonsUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst options = getLocalizedOptions( this.editor );\n\n\t\toptions\n\t\t\t.filter( item => item.model !== 'paragraph' )\n\t\t\t.map( item => this._createButton( item ) );\n\t}\n\n\t/**\n\t * Creates single button view from provided configuration option.\n\t */\n\tprivate _createButton( option: HeadingOption ) {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( option.model, locale => {\n\t\t\tconst view = new ButtonView( locale );\n\t\t\tconst command: HeadingCommand = editor.commands.get( 'heading' )!;\n\n\t\t\tview.label = option.title;\n\t\t\tview.icon = option.icon || defaultIcons[ option.model ];\n\t\t\tview.tooltip = true;\n\t\t\tview.isToggleable = true;\n\t\t\tview.bind( 'isEnabled' ).to( command );\n\t\t\tview.bind( 'isOn' ).to( command, 'value', value => value == option.model );\n\n\t\t\tview.on( 'execute', () => {\n\t\t\t\teditor.execute( 'heading', { value: option.model } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H9a1 1 0 0 1-1-1V11H3v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H2a1 1 0 0 1 1 1v4.5zm16.076 8.343V18.5h-6.252c.067-.626.27-1.22.61-1.78.338-.561 1.006-1.305 2.005-2.232.804-.749 1.297-1.257 1.479-1.523.245-.368.368-.732.368-1.092 0-.398-.107-.703-.32-.917-.214-.214-.51-.32-.886-.32-.372 0-.669.111-.889.336-.22.224-.347.596-.38 1.117l-1.778-.178c.106-.982.438-1.686.997-2.114.558-.427 1.257-.64 2.095-.64.918 0 1.64.247 2.164.742.525.495.787 1.11.787 1.847 0 .419-.075.818-.225 1.197-.15.378-.388.775-.714 1.19-.216.275-.605.67-1.168 1.187-.563.516-.92.859-1.07 1.028a3.11 3.11 0 0 0-.365.495h3.542z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1H9a1 1 0 0 1-1-1V11H3v4.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1H2a1 1 0 0 1 1 1v4.5zm9.989 7.53 1.726-.209c.055.44.203.777.445 1.01.24.232.533.349.876.349.368 0 .678-.14.93-.42.251-.279.377-.655.377-1.13 0-.448-.12-.803-.362-1.066a1.153 1.153 0 0 0-.882-.393c-.228 0-.501.044-.819.133l.197-1.453c.482.012.85-.092 1.105-.315.253-.222.38-.517.38-.885 0-.313-.093-.563-.279-.75-.186-.185-.434-.278-.743-.278a1.07 1.07 0 0 0-.78.317c-.216.212-.347.52-.394.927l-1.644-.28c.114-.562.287-1.012.517-1.348.231-.337.553-.601.965-.794a3.24 3.24 0 0 1 1.387-.289c.876 0 1.579.28 2.108.838.436.457.653.973.653 1.549 0 .817-.446 1.468-1.339 1.955.533.114.96.37 1.28.768.319.398.478.878.478 1.441 0 .817-.298 1.513-.895 2.088-.596.576-1.339.864-2.228.864-.842 0-1.54-.243-2.094-.727-.555-.485-.876-1.118-.965-1.901z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3.5 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm13.55 10v-1.873h-3.81v-1.561l4.037-5.91h1.498v5.904h1.156v1.567h-1.156V18.5H17.05zm0-3.44v-3.18l-2.14 3.18h2.14z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3.5 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm9.578 7.607 1.777-.184c.05.402.201.72.45.955a1.223 1.223 0 0 0 1.81-.101c.258-.303.387-.759.387-1.368 0-.572-.128-1-.384-1.286-.256-.285-.59-.428-1-.428-.512 0-.971.226-1.377.679l-1.448-.21.915-4.843h4.716v1.67H15.56l-.28 1.58a2.697 2.697 0 0 1 1.219-.298 2.68 2.68 0 0 1 2.012.863c.55.576.825 1.323.825 2.241a3.36 3.36 0 0 1-.666 2.05c-.605.821-1.445 1.232-2.52 1.232-.86 0-1.56-.23-2.101-.692-.542-.461-.866-1.081-.971-1.86z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M3.5 8.5h5V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v11.5a1 1 0 0 1-1 1h-.5a1 1 0 0 1-1-1V11h-5v4.5a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h.5a1 1 0 0 1 1 1v4.5zm15.595 2.973-1.726.19c-.043-.355-.153-.617-.33-.787-.178-.169-.409-.253-.692-.253-.377 0-.695.169-.956.507-.26.339-.424 1.043-.492 2.114.445-.525.997-.787 1.657-.787.745 0 1.383.284 1.914.85.531.568.797 1.3.797 2.197 0 .952-.28 1.716-.838 2.291-.559.576-1.276.864-2.152.864-.94 0-1.712-.365-2.317-1.095-.605-.73-.908-1.927-.908-3.59 0-1.705.316-2.935.946-3.688.63-.753 1.45-1.13 2.457-1.13.706 0 1.291.198 1.755.594.463.395.758.97.885 1.723zm-4.043 3.891c0 .58.133 1.028.4 1.343.266.315.57.473.914.473.33 0 .605-.13.825-.388.22-.258.33-.68.33-1.27 0-.604-.118-1.047-.355-1.329a1.115 1.115 0 0 0-.89-.422c-.342 0-.632.134-.869.403s-.355.666-.355 1.19z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\n\n/**\n * The base font command.\n */\nexport default abstract class FontCommand extends Command {\n\t/**\n\t * When set, it reflects the {@link #attributeKey} value of the selection.\n\t *\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: string;\n\n\t/**\n\t * A model attribute on which this command operates.\n\t */\n\tpublic readonly attributeKey: string;\n\n\t/**\n\t * Creates an instance of the command.\n\t *\n\t * @param editor Editor instance.\n\t * @param attributeKey The name of a model attribute on which this command operates.\n\t */\n\tconstructor( editor: Editor, attributeKey: string ) {\n\t\tsuper( editor );\n\n\t\tthis.attributeKey = attributeKey;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.value = doc.selection.getAttribute( this.attributeKey ) as string;\n\t\tthis.isEnabled = model.schema.checkAttributeInSelection( doc.selection, this.attributeKey );\n\t}\n\n\t/**\n\t * Executes the command. Applies the `value` of the {@link #attributeKey} to the selection.\n\t * If no `value` is passed, it removes the attribute from the selection.\n\t *\n\t * @param options Options for the executed command.\n\t * @param options.value The value to apply.\n\t * @fires execute\n\t */\n\tpublic override execute( options: { value?: string } = {} ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst selection = document.selection;\n\n\t\tconst value = options.value;\n\n\t\tmodel.change( writer => {\n\t\t\tif ( selection.isCollapsed ) {\n\t\t\t\tif ( value ) {\n\t\t\t\t\twriter.setSelectionAttribute( this.attributeKey, value );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeSelectionAttribute( this.attributeKey );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst ranges = model.schema.getValidRanges( selection.getRanges(), this.attributeKey );\n\n\t\t\t\tfor ( const range of ranges ) {\n\t\t\t\t\tif ( value ) {\n\t\t\t\t\t\twriter.setAttribute( this.attributeKey, value, range );\n\t\t\t\t\t} else {\n\t\t\t\t\t\twriter.removeAttribute( this.attributeKey, range );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/documentcolorcollection\n */\n\nimport type { ColorDefinition } from 'ckeditor5/src/ui';\nimport {\n\tCollection,\n\tObservableMixin,\n\ttype CollectionAddEvent,\n\ttype CollectionRemoveEvent,\n\ttype CollectionChangeEvent\n} from 'ckeditor5/src/utils';\n\n/**\n * A collection to store document colors. It enforces colors to be unique.\n */\nexport default class DocumentColorCollection extends ObservableMixin( Collection<ColorDefinition> ) {\n\t/**\n\t * Indicates whether the document color collection is empty.\n\t *\n\t * @observable\n\t */\n\tdeclare public readonly isEmpty: boolean;\n\n\tconstructor( options?: any ) {\n\t\tsuper( options );\n\n\t\tthis.set( 'isEmpty', true );\n\n\t\tthis.on( 'change', () => {\n\t\t\tthis.set( 'isEmpty', this.length === 0 );\n\t\t} );\n\t}\n\n\t/**\n\t * Adds a color to the document color collection.\n\t *\n\t * This method ensures that no color duplicates are inserted (compared using\n\t * the color value of the {@link module:ui/colorgrid/colorgridview~ColorDefinition}).\n\t *\n\t * If the item does not have an ID, it will be automatically generated and set on the item.\n\t *\n\t * @param index The position of the item in the collection. The item is pushed to the collection when `index` is not specified.\n\t * @fires add\n\t * @fires change\n\t */\n\tpublic override add( item: ColorDefinition, index?: number ): this {\n\t\tif ( this.find( element => element.color === item.color ) ) {\n\t\t\t// No duplicates are allowed.\n\t\t\treturn this;\n\t\t}\n\n\t\treturn super.add( item, index );\n\t}\n\n\t/**\n\t * Checks if an object with given colors is present in the document color collection.\n\t */\n\tpublic hasColor( color: string ): boolean {\n\t\treturn !!this.find( item => item.color === color );\n\t}\n}\n\n/**\n * Fired when the collection was changed due to adding or removing items.\n *\n * @eventName ~DocumentColorCollection#change\n * @param data Changed items.\n */\nexport type DocumentColorCollectionChangeEvent = CollectionChangeEvent;\n\n/**\n * Fired when an item is added to the collection.\n *\n * @eventName ~DocumentColorCollection#add\n * @param item The added item.\n * @param index An index where the addition occurred.\n */\nexport type DocumentColorCollectionAddEvent = CollectionAddEvent;\n\n/**\n * Fired when an item is removed from the collection.\n *\n * @eventName ~DocumentColorCollection#remove\n * @param item The removed item.\n * @param index Index from which item was removed.\n */\nexport type DocumentColorCollectionRemoveEvent = CollectionRemoveEvent;\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./fontcolor.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/ui/colortableview\n */\n\nimport { icons } from 'ckeditor5/src/core';\nimport {\n\tButtonView,\n\tColorGridView,\n\tColorTileView,\n\tFocusCycler,\n\tLabelView,\n\tTemplate,\n\tView,\n\tViewCollection,\n\ttype ColorDefinition\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler, type Locale } from 'ckeditor5/src/utils';\nimport type { Model } from 'ckeditor5/src/engine';\n\nimport DocumentColorCollection from '../documentcolorcollection';\n\nimport '../../theme/fontcolor.css';\n\n/**\n * A class which represents a view with the following sub–components:\n *\n * * A remove color button,\n * * A static {@link module:ui/colorgrid/colorgridview~ColorGridView} of colors defined in the configuration,\n * * A dynamic {@link module:ui/colorgrid/colorgridview~ColorGridView} of colors used in the document.\n */\nexport default class ColorTableView extends View {\n\t/**\n\t * A collection of the children of the table.\n\t */\n\tpublic readonly items: ViewCollection;\n\n\t/**\n\t * An array with objects representing colors to be displayed in the grid.\n\t */\n\tpublic colorDefinitions: Array<ColorDefinition>;\n\n\t/**\n\t * Tracks information about the DOM focus in the list.\n\t */\n\tpublic readonly focusTracker: FocusTracker;\n\n\t/**\n\t * An instance of the {@link module:utils/keystrokehandler~KeystrokeHandler}.\n\t */\n\tpublic readonly keystrokes: KeystrokeHandler;\n\n\t/**\n\t * The label of the button responsible for removing color attributes.\n\t */\n\tpublic removeButtonLabel: string;\n\n\t/**\n\t * The number of columns in the color grid.\n\t */\n\tpublic columns: number;\n\n\t/**\n\t * A collection of definitions that store the document colors.\n\t *\n\t * @readonly\n\t */\n\tpublic documentColors: DocumentColorCollection;\n\n\t/**\n\t * The maximum number of colors in the document colors section.\n\t * If it equals 0, the document colors section is not added.\n\t *\n\t * @readonly\n\t */\n\tpublic documentColorsCount?: number;\n\n\t/**\n\t * A collection of views that can be focused in the view.\n\t *\n\t * @readonly\n\t */\n\tprotected _focusables: ViewCollection;\n\n\t/**\n\t * Helps cycling over focusable {@link #items} in the list.\n\t *\n\t * @readonly\n\t */\n\tprotected _focusCycler: FocusCycler;\n\n\t/**\n\t * Document color section's label.\n\t *\n\t * @readonly\n\t */\n\tprivate _documentColorsLabel?: string;\n\n\t/**\n\t * Keeps the value of the command associated with the table for the current selection.\n\t */\n\tdeclare public selectedColor?: string;\n\n\t/**\n\t * Preserves the reference to {@link module:ui/colorgrid/colorgridview~ColorGridView} used to create\n\t * the default (static) color set.\n\t *\n\t * The property is loaded once the the parent dropdown is opened the first time.\n\t *\n\t * @readonly\n\t */\n\tpublic staticColorsGrid: ColorGridView | undefined;\n\n\t/**\n\t * Preserves the reference to {@link module:ui/colorgrid/colorgridview~ColorGridView} used to create\n\t * the document colors. It remains undefined if the document colors feature is disabled.\n\t *\n\t * The property is loaded once the the parent dropdown is opened the first time.\n\t *\n\t * @readonly\n\t */\n\tpublic documentColorsGrid: ColorGridView | undefined;\n\n\t/**\n\t * Creates a view to be inserted as a child of {@link module:ui/dropdown/dropdownview~DropdownView}.\n\t *\n\t * @param locale The localization services instance.\n\t * @param colors An array with definitions of colors to be displayed in the table.\n\t * @param columns The number of columns in the color grid.\n\t * @param removeButtonLabel The label of the button responsible for removing the color.\n\t * @param documentColorsLabel The label for the section with the document colors.\n\t * @param documentColorsCount The number of colors in the document colors section inside the color dropdown.\n\t */\n\tconstructor(\n\t\tlocale: Locale,\n\t\t{ colors, columns, removeButtonLabel, documentColorsLabel, documentColorsCount }: {\n\n\t\t\tcolors: Array<ColorDefinition>;\n\t\t\tcolumns: number;\n\t\t\tremoveButtonLabel: string;\n\t\t\tdocumentColorsLabel?: string;\n\t\t\tdocumentColorsCount?: number;\n\t\t}\n\t) {\n\t\tsuper( locale );\n\n\t\tthis.items = this.createCollection();\n\t\tthis.colorDefinitions = colors;\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\n\t\tthis.set( 'selectedColor', undefined );\n\n\t\tthis.removeButtonLabel = removeButtonLabel;\n\t\tthis.columns = columns;\n\t\tthis.documentColors = new DocumentColorCollection();\n\t\tthis.documentColorsCount = documentColorsCount;\n\n\t\tthis._focusables = new ViewCollection();\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\t// Navigate list items backwards using the <kbd>Shift</kbd> + <kbd>Tab</kbd> keystroke.\n\t\t\t\tfocusPrevious: 'shift + tab',\n\n\t\t\t\t// Navigate list items forwards using the <kbd>Tab</kbd> key.\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\n\t\tthis._documentColorsLabel = documentColorsLabel;\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-color-table'\n\t\t\t\t]\n\t\t\t},\n\t\t\tchildren: this.items\n\t\t} );\n\n\t\tthis.items.add( this._createRemoveColorButton() );\n\t}\n\n\t/**\n\t * Scans through the editor model and searches for text node attributes with the given attribute name.\n\t * Found entries are set as document colors.\n\t *\n\t * All the previously stored document colors will be lost in the process.\n\t *\n\t * @param model The model used as a source to obtain the document colors.\n\t * @param attributeName Determines the name of the related model's attribute for a given dropdown.\n\t */\n\tpublic updateDocumentColors( model: Model, attributeName: string ): void {\n\t\tconst document = model.document;\n\t\tconst maxCount = this.documentColorsCount;\n\n\t\tthis.documentColors.clear();\n\n\t\tfor ( const rootName of document.getRootNames() ) {\n\t\t\tconst root = document.getRoot( rootName )!;\n\t\t\tconst range = model.createRangeIn( root );\n\n\t\t\tfor ( const node of range.getItems() ) {\n\t\t\t\tif ( node.is( '$textProxy' ) && node.hasAttribute( attributeName ) ) {\n\t\t\t\t\tthis._addColorToDocumentColors( node.getAttribute( attributeName ) as string );\n\n\t\t\t\t\tif ( this.documentColors.length >= maxCount! ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Refreshes the state of the selected color in one or both {@link module:ui/colorgrid/colorgridview~ColorGridView}s\n\t * available in the {@link module:font/ui/colortableview~ColorTableView}. It guarantees that the selection will occur only in one\n\t * of them.\n\t */\n\tpublic updateSelectedColors(): void {\n\t\tconst documentColorsGrid = this.documentColorsGrid;\n\t\tconst staticColorsGrid = this.staticColorsGrid!;\n\t\tconst selectedColor = this.selectedColor;\n\n\t\tstaticColorsGrid.selectedColor = selectedColor;\n\n\t\tif ( documentColorsGrid ) {\n\t\t\tdocumentColorsGrid.selectedColor = selectedColor;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\t// Start listening for the keystrokes coming from #element.\n\t\tthis.keystrokes.listenTo( this.element! );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\tthis.focusTracker.destroy();\n\t\tthis.keystrokes.destroy();\n\t}\n\n\t/**\n\t * Appends {@link #staticColorsGrid} and {@link #documentColorsGrid} views.\n\t */\n\tpublic appendGrids(): void {\n\t\tif ( this.staticColorsGrid ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.staticColorsGrid = this._createStaticColorsGrid();\n\n\t\tthis.items.add( this.staticColorsGrid );\n\t\tthis.focusTracker.add( this.staticColorsGrid.element! );\n\t\tthis._focusables.add( this.staticColorsGrid );\n\n\t\tif ( this.documentColorsCount ) {\n\t\t\t// Create a label for document colors.\n\t\t\tconst bind = Template.bind( this.documentColors, this.documentColors );\n\t\t\tconst label = new LabelView( this.locale );\n\t\t\tlabel.text = this._documentColorsLabel;\n\t\t\tlabel.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck',\n\t\t\t\t\t\t'ck-color-grid__label',\n\t\t\t\t\t\tbind.if( 'isEmpty', 'ck-hidden' )\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\t\t\tthis.items.add( label );\n\t\t\tthis.documentColorsGrid = this._createDocumentColorsGrid();\n\n\t\t\tthis.items.add( this.documentColorsGrid );\n\t\t\tthis.focusTracker.add( this.documentColorsGrid.element! );\n\t\t\tthis._focusables.add( this.documentColorsGrid );\n\t\t}\n\t}\n\n\t/**\n\t * Focuses the first focusable element in {@link #items}.\n\t */\n\tpublic focus(): void {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\t/**\n\t * Focuses the last focusable element in {@link #items}.\n\t */\n\tpublic focusLast(): void {\n\t\tthis._focusCycler.focusLast();\n\t}\n\n\t/**\n\t * Adds the remove color button as a child of the current view.\n\t */\n\tprivate _createRemoveColorButton(): ButtonView {\n\t\tconst buttonView = new ButtonView();\n\n\t\tbuttonView.set( {\n\t\t\twithText: true,\n\t\t\ticon: icons.eraser,\n\t\t\tlabel: this.removeButtonLabel\n\t\t} );\n\n\t\tbuttonView.class = 'ck-color-table__remove-color';\n\t\tbuttonView.on( 'execute', () => {\n\t\t\tthis.fire( 'execute', { value: null } );\n\t\t} );\n\n\t\tbuttonView.render();\n\n\t\tthis.focusTracker.add( buttonView.element! );\n\t\tthis._focusables.add( buttonView );\n\n\t\treturn buttonView;\n\t}\n\n\t/**\n\t * Creates a static color table grid based on the editor configuration.\n\t */\n\tprivate _createStaticColorsGrid(): ColorGridView {\n\t\tconst colorGrid = new ColorGridView( this.locale, {\n\t\t\tcolorDefinitions: this.colorDefinitions,\n\t\t\tcolumns: this.columns\n\t\t} );\n\n\t\tcolorGrid.delegate( 'execute' ).to( this );\n\n\t\treturn colorGrid;\n\t}\n\n\t/**\n\t * Creates the document colors section view and binds it to {@link #documentColors}.\n\t */\n\tprivate _createDocumentColorsGrid(): ColorGridView {\n\t\tconst bind = Template.bind( this.documentColors, this.documentColors );\n\t\tconst documentColorsGrid = new ColorGridView( this.locale, {\n\t\t\tcolumns: this.columns\n\t\t} );\n\n\t\tdocumentColorsGrid.delegate( 'execute' ).to( this );\n\n\t\tdocumentColorsGrid.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: bind.if( 'isEmpty', 'ck-hidden' )\n\t\t\t}\n\t\t} );\n\n\t\tdocumentColorsGrid.items.bindTo( this.documentColors ).using(\n\t\t\tcolorObj => {\n\t\t\t\tconst colorTile = new ColorTileView();\n\n\t\t\t\tcolorTile.set( {\n\t\t\t\t\tcolor: colorObj.color,\n\t\t\t\t\thasBorder: colorObj.options && colorObj.options.hasBorder\n\t\t\t\t} );\n\n\t\t\t\tif ( colorObj.label ) {\n\t\t\t\t\tcolorTile.set( {\n\t\t\t\t\t\tlabel: colorObj.label,\n\t\t\t\t\t\ttooltip: true\n\t\t\t\t\t} );\n\t\t\t\t}\n\n\t\t\t\tcolorTile.on( 'execute', () => {\n\t\t\t\t\tthis.fire( 'execute', {\n\t\t\t\t\t\tvalue: colorObj.color\n\t\t\t\t\t} );\n\t\t\t\t} );\n\n\t\t\t\treturn colorTile;\n\t\t\t}\n\t\t);\n\n\t\t// Selected color should be cleared when document colors became empty.\n\t\tthis.documentColors.on( 'change:isEmpty', ( evt, name, val ) => {\n\t\t\tif ( val ) {\n\t\t\t\tdocumentColorsGrid.selectedColor = null;\n\t\t\t}\n\t\t} );\n\n\t\treturn documentColorsGrid;\n\t}\n\n\t/**\n\t * Adds a given color to the document colors list. If possible, the method will attempt to use\n\t * data from the {@link #colorDefinitions} (label, color options).\n\t *\n\t * @param color A string that stores the value of the recently applied color.\n\t */\n\tprivate _addColorToDocumentColors( color: string ): void {\n\t\tconst predefinedColor = this.colorDefinitions\n\t\t\t.find( definition => definition.color === color );\n\n\t\tif ( !predefinedColor ) {\n\t\t\tthis.documentColors.add( {\n\t\t\t\tcolor,\n\t\t\t\tlabel: color,\n\t\t\t\toptions: {\n\t\t\t\t\thasBorder: false\n\t\t\t\t}\n\t\t\t} );\n\t\t} else {\n\t\t\tthis.documentColors.add( Object.assign( {}, predefinedColor ) );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/utils\n */\n\nimport ColorTableView from './ui/colortableview';\n\nimport type { FontFamilyOption, FontSizeOption } from './fontconfig';\nimport type { ColorDefinition, DropdownView } from 'ckeditor5/src/ui';\nimport type { ArrayOrItem } from 'ckeditor5/src/utils';\nimport type {\n\tViewAttributeElement,\n\tViewElement,\n\tMatcherPattern,\n\tViewElementDefinition,\n\tDowncastConversionApi\n} from 'ckeditor5/src/engine';\n\n/**\n * The name of the font size plugin.\n */\nexport const FONT_SIZE = 'fontSize';\n\n/**\n * The name of the font family plugin.\n */\nexport const FONT_FAMILY = 'fontFamily';\n\n/**\n * The name of the font color plugin.\n */\nexport const FONT_COLOR = 'fontColor';\n\n/**\n * The name of the font background color plugin.\n */\nexport const FONT_BACKGROUND_COLOR = 'fontBackgroundColor';\n\n/**\n * Builds a proper converter definition out of input data.\n */\nexport function buildDefinition(\n\tmodelAttributeKey: string,\n\toptions: Array<FontFamilyOption> | Array<FontSizeOption>\n): FontConverterDefinition {\n\tconst definition: FontConverterDefinition = {\n\t\tmodel: {\n\t\t\tkey: modelAttributeKey,\n\t\t\tvalues: []\n\t\t},\n\t\tview: {},\n\t\tupcastAlso: {}\n\t};\n\n\tfor ( const option of options ) {\n\t\tdefinition.model.values.push( option.model! );\n\t\tdefinition.view[ option.model! ] = option.view!;\n\n\t\tif ( option.upcastAlso ) {\n\t\t\tdefinition.upcastAlso[ option.model! ] = option.upcastAlso;\n\t\t}\n\t}\n\n\treturn definition;\n}\n\nexport type FontConverterDefinition = {\n\tmodel: { key: string; values: Array<string> };\n\tview: Record<string, ViewElementDefinition>;\n\tupcastAlso: Record<string, ArrayOrItem<MatcherPattern>>;\n};\n\n/**\n * A {@link module:font/fontcolor~FontColor font color} and\n * {@link module:font/fontbackgroundcolor~FontBackgroundColor font background color} helper\n * responsible for upcasting data to the model.\n *\n * **Note**: The `styleAttr` parameter should be either `'color'` or `'background-color'`.\n */\nexport function renderUpcastAttribute( styleAttr: string ) {\n\treturn ( viewElement: ViewElement ): string => normalizeColorCode( viewElement.getStyle( styleAttr )! );\n}\n\n/**\n * A {@link module:font/fontcolor~FontColor font color} and\n * {@link module:font/fontbackgroundcolor~FontBackgroundColor font background color} helper\n * responsible for downcasting a color attribute to a `<span>` element.\n *\n * **Note**: The `styleAttr` parameter should be either `'color'` or `'background-color'`.\n */\nexport function renderDowncastElement( styleAttr: string ) {\n\treturn ( modelAttributeValue: string, { writer }: DowncastConversionApi ): ViewAttributeElement =>\n\t\twriter.createAttributeElement( 'span', {\n\t\t\tstyle: `${ styleAttr }:${ modelAttributeValue }`\n\t\t}, { priority: 7 } );\n}\n\n/**\n * A helper that adds {@link module:font/ui/colortableview~ColorTableView} to the color dropdown with proper initial values.\n *\n * @param config.dropdownView The dropdown view to which a {@link module:font/ui/colortableview~ColorTableView} will be added.\n * @param config.colors An array with definitions representing colors to be displayed in the color table.\n * @param config.removeButtonLabel The label for the button responsible for removing the color.\n * @param config.documentColorsLabel The label for the section with document colors.\n * @param config.documentColorsCount The number of document colors inside the dropdown.\n * @returns The new color table view.\n */\nexport function addColorTableToDropdown(\n\t{ dropdownView, colors, columns, removeButtonLabel, documentColorsLabel, documentColorsCount }: {\n\t\tdropdownView: ColorTableDropdownView;\n\t\tcolors: Array<ColorDefinition>;\n\t\tcolumns: number;\n\t\tremoveButtonLabel: string;\n\t\tdocumentColorsLabel?: string;\n\t\tdocumentColorsCount?: number;\n\t}\n): ColorTableView {\n\tconst locale = dropdownView.locale!;\n\tconst colorTableView = new ColorTableView( locale, { colors, columns, removeButtonLabel, documentColorsLabel, documentColorsCount } );\n\n\tdropdownView.colorTableView = colorTableView;\n\tdropdownView.panelView.children.add( colorTableView );\n\n\tcolorTableView.delegate( 'execute' ).to( dropdownView, 'execute' );\n\n\treturn colorTableView;\n}\n\n/**\n * Fixes the color value string.\n */\nfunction normalizeColorCode( value: string ): string {\n\treturn value.replace( /\\s/g, '' );\n}\n\nexport type ColorTableDropdownView = DropdownView & {\n\tcolorTableView?: ColorTableView;\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily/fontfamilycommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport FontCommand from '../fontcommand';\nimport { FONT_FAMILY } from '../utils';\n\n/**\n * The font family command. It is used by {@link module:font/fontfamily/fontfamilyediting~FontFamilyEditing}\n * to apply the font family.\n *\n * ```ts\n * editor.execute( 'fontFamily', { value: 'Arial' } );\n * ```\n *\n * **Note**: Executing the command without the value removes the attribute from the model.\n */\nexport default class FontFamilyCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor, FONT_FAMILY );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\nimport type { FontFamilyOption } from '../fontconfig';\n\n/**\n * @module font/fontfamily/utils\n */\n\n/**\n * Normalizes the {@link module:font/fontconfig~FontFamilyConfig#options configuration options}\n * to the {@link module:font/fontconfig~FontFamilyOption} format.\n *\n * @param configuredOptions An array of options taken from the configuration.\n */\nexport function normalizeOptions( configuredOptions: Array<string | FontFamilyOption> ): Array<FontFamilyOption> {\n\t// Convert options to objects.\n\treturn configuredOptions\n\t\t.map( getOptionDefinition )\n\t\t// Filter out undefined values that `getOptionDefinition` might return.\n\t\t.filter( option => option !== undefined ) as Array<FontFamilyOption>;\n}\n\n/**\n * Returns an option definition either created from string shortcut.\n * If object is passed then this method will return it without alternating it. Returns undefined for item than cannot be parsed.\n *\n */\nfunction getOptionDefinition( option: string | FontFamilyOption ): FontFamilyOption | undefined {\n\t// Treat any object as full item definition provided by user in configuration.\n\tif ( typeof option === 'object' ) {\n\t\treturn option;\n\t}\n\n\t// Handle 'default' string as a special case. It will be used to remove the fontFamily attribute.\n\tif ( option === 'default' ) {\n\t\treturn {\n\t\t\ttitle: 'Default',\n\t\t\tmodel: undefined\n\t\t};\n\t}\n\n\t// Ignore values that we cannot parse to a definition.\n\tif ( typeof option !== 'string' ) {\n\t\treturn undefined;\n\t}\n\n\t// Return font family definition from font string.\n\treturn generateFontPreset( option );\n}\n\n/**\n * Creates a predefined preset for pixel size. It deconstructs font-family like string into full configuration option.\n * A font definition is passed as coma delimited set of font family names. Font names might be quoted.\n *\n * @param fontDefinition A font definition form configuration.\n */\nfunction generateFontPreset( fontDefinition: string ): FontFamilyOption {\n\t// Remove quotes from font names. They will be normalized later.\n\tconst fontNames = fontDefinition.replace( /\"|'/g, '' ).split( ',' );\n\n\t// The first matched font name will be used as dropdown list item title and as model value.\n\tconst firstFontName = fontNames[ 0 ];\n\n\t// CSS-compatible font names.\n\tconst cssFontNames = fontNames.map( normalizeFontNameForCSS ).join( ', ' );\n\n\treturn {\n\t\ttitle: firstFontName,\n\t\tmodel: cssFontNames,\n\t\tview: {\n\t\t\tname: 'span',\n\t\t\tstyles: {\n\t\t\t\t'font-family': cssFontNames\n\t\t\t},\n\t\t\tpriority: 7\n\t\t}\n\t};\n}\n\n/**\n * Normalizes font name for the style attribute. It adds braces (') if font name contains spaces.\n */\nfunction normalizeFontNameForCSS( fontName: string ): string {\n\tfontName = fontName.trim();\n\n\t// Compound font names should be quoted.\n\tif ( fontName.indexOf( ' ' ) > 0 ) {\n\t\tfontName = `'${ fontName }'`;\n\t}\n\n\treturn fontName;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily/fontfamilyediting\n */\n\nimport { type Editor, Plugin } from 'ckeditor5/src/core';\nimport type { ViewElement } from 'ckeditor5/src/engine';\n\nimport FontFamilyCommand from './fontfamilycommand';\nimport { normalizeOptions } from './utils';\nimport { buildDefinition, FONT_FAMILY } from '../utils';\n\n/**\n * The font family editing feature.\n *\n * It introduces the {@link module:font/fontfamily/fontfamilycommand~FontFamilyCommand command} and\n * the `fontFamily` attribute in the {@link module:engine/model/model~Model model} which renders\n * in the {@link module:engine/view/view view} as an inline `<span>` element (`<span style=\"font-family: Arial\">`),\n * depending on the {@link module:font/fontconfig~FontFamilyConfig configuration}.\n */\nexport default class FontFamilyEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontFamilyEditing' {\n\t\treturn 'FontFamilyEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t// Define default configuration using font families shortcuts.\n\t\teditor.config.define( FONT_FAMILY, {\n\t\t\toptions: [\n\t\t\t\t'default',\n\t\t\t\t'Arial, Helvetica, sans-serif',\n\t\t\t\t'Courier New, Courier, monospace',\n\t\t\t\t'Georgia, serif',\n\t\t\t\t'Lucida Sans Unicode, Lucida Grande, sans-serif',\n\t\t\t\t'Tahoma, Geneva, sans-serif',\n\t\t\t\t'Times New Roman, Times, serif',\n\t\t\t\t'Trebuchet MS, Helvetica, sans-serif',\n\t\t\t\t'Verdana, Geneva, sans-serif'\n\t\t\t],\n\t\t\tsupportAllValues: false\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Allow fontFamily attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_FAMILY } );\n\t\teditor.model.schema.setAttributeProperties( FONT_FAMILY, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\t// Get configured font family options without \"default\" option.\n\t\tconst options = normalizeOptions(\n\t\t\teditor.config.get( 'fontFamily.options' )!\n\t\t).filter( item => item.model );\n\t\tconst definition = buildDefinition( FONT_FAMILY, options );\n\n\t\t// Set-up the two-way conversion.\n\t\tif ( editor.config.get( 'fontFamily.supportAllValues' ) ) {\n\t\t\tthis._prepareAnyValueConverters();\n\t\t\tthis._prepareCompatibilityConverter();\n\t\t} else {\n\t\t\teditor.conversion.attributeToElement( definition );\n\t\t}\n\n\t\teditor.commands.add( FONT_FAMILY, new FontFamilyCommand( editor ) );\n\t}\n\n\t/**\n\t * These converters enable keeping any value found as `style=\"font-family: *\"` as a value of an attribute on a text even\n\t * if it is not defined in the plugin configuration.\n\t */\n\tprivate _prepareAnyValueConverters(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_FAMILY,\n\t\t\tview: ( attributeValue, { writer } ) => {\n\t\t\t\treturn writer.createAttributeElement( 'span', { style: 'font-family:' + attributeValue }, { priority: 7 } );\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_FAMILY,\n\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getStyle( 'font-family' )\n\t\t\t},\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'font-family': /.*/\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Adds support for legacy `<font face=\"..\">` formatting.\n\t */\n\tprivate _prepareCompatibilityConverter(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'font',\n\t\t\t\tattributes: {\n\t\t\t\t\t'face': /.*/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_FAMILY,\n\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getAttribute( 'face' )\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily/fontfamilyui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Collection } from 'ckeditor5/src/utils';\nimport { Model, createDropdown, addListToDropdown, type ListDropdownItemDefinition } from 'ckeditor5/src/ui';\n\nimport { normalizeOptions } from './utils';\nimport { FONT_FAMILY } from '../utils';\n\nimport type { FontFamilyOption } from '../fontconfig';\nimport type FontFamilyCommand from './fontfamilycommand';\n\nimport fontFamilyIcon from '../../theme/icons/font-family.svg';\n\n/**\n * The font family UI plugin. It introduces the `'fontFamily'` dropdown.\n */\nexport default class FontFamilyUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontFamilyUI' {\n\t\treturn 'FontFamilyUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst options = this._getLocalizedOptions();\n\n\t\tconst command: FontFamilyCommand = editor.commands.get( FONT_FAMILY )!;\n\n\t\t// Register UI component.\n\t\teditor.ui.componentFactory.add( FONT_FAMILY, locale => {\n\t\t\tconst dropdownView = createDropdown( locale );\n\n\t\t\taddListToDropdown( dropdownView, () => _prepareListOptions( options, command ) );\n\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tlabel: t( 'Font Family' ),\n\t\t\t\ticon: fontFamilyIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: 'ck-font-family-dropdown'\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\t\teditor.execute( ( evt.source as any ).commandName, { value: ( evt.source as any ).commandParam } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns options as defined in `config.fontFamily.options` but processed to account for\n\t * editor localization, i.e. to display {@link module:font/fontconfig~FontFamilyOption}\n\t * in the correct language.\n\t *\n\t * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n\t * when the user configuration is defined because the editor does not exist yet.\n\t */\n\tprivate _getLocalizedOptions(): Array<FontFamilyOption> {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst options = normalizeOptions( ( editor.config.get( FONT_FAMILY )! ).options! );\n\n\t\treturn options.map( option => {\n\t\t\t// The only title to localize is \"Default\" others are font names.\n\t\t\tif ( option.title === 'Default' ) {\n\t\t\t\toption.title = t( 'Default' );\n\t\t\t}\n\n\t\t\treturn option;\n\t\t} );\n\t}\n}\n\n/**\n * Prepares FontFamily dropdown items.\n */\nfunction _prepareListOptions( options: Array<FontFamilyOption>, command: FontFamilyCommand ): Collection<ListDropdownItemDefinition> {\n\tconst itemDefinitions = new Collection<ListDropdownItemDefinition>();\n\n\t// Create dropdown items.\n\tfor ( const option of options ) {\n\t\tconst def = {\n\t\t\ttype: 'button' as const,\n\t\t\tmodel: new Model( {\n\t\t\t\tcommandName: FONT_FAMILY,\n\t\t\t\tcommandParam: option.model,\n\t\t\t\tlabel: option.title,\n\t\t\t\twithText: true\n\t\t\t} )\n\t\t};\n\n\t\tdef.model.bind( 'isOn' ).to( command, 'value', value => {\n\t\t\t// \"Default\" or check in strict font-family converters mode.\n\t\t\tif ( value === option.model ) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tif ( !value || !option.model ) {\n\t\t\t\treturn false;\n\t\t\t}\n\n\t\t\treturn value.split( ',' )[ 0 ].replace( /'/g, '' ).toLowerCase() === option.model.toLowerCase();\n\t\t} );\n\n\t\t// Try to set a dropdown list item style.\n\t\tif ( option.view && typeof option.view !== 'string' && option.view.styles ) {\n\t\t\tdef.model.set( 'labelStyle', `font-family: ${ option.view.styles[ 'font-family' ] }` );\n\t\t}\n\n\t\titemDefinitions.add( def );\n\t}\n\treturn itemDefinitions;\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M11.03 3h6.149a.75.75 0 1 1 0 1.5h-5.514L11.03 3zm1.27 3h4.879a.75.75 0 1 1 0 1.5h-4.244L12.3 6zm1.27 3h3.609a.75.75 0 1 1 0 1.5h-2.973L13.57 9zm-2.754 2.5L8.038 4.785 5.261 11.5h5.555zm.62 1.5H4.641l-1.666 4.028H1.312l5.789-14h1.875l5.789 14h-1.663L11.436 13z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontfamily\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontFamilyEditing from './fontfamily/fontfamilyediting';\nimport FontFamilyUI from './fontfamily/fontfamilyui';\n\n/**\n * The font family plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentatiom\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:font/fontfamily/fontfamilyediting~FontFamilyEditing} and\n * {@link module:font/fontfamily/fontfamilyui~FontFamilyUI} features in the editor.\n */\nexport default class FontFamily extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FontFamilyEditing, FontFamilyUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontFamily' {\n\t\treturn 'FontFamily';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/fontsizecommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport FontCommand from '../fontcommand';\nimport { FONT_SIZE } from '../utils';\n\n/**\n * The font size command. It is used by {@link module:font/fontsize/fontsizeediting~FontSizeEditing}\n * to apply the font size.\n *\n * ```ts\n * editor.execute( 'fontSize', { value: 'small' } );\n * ```\n *\n * **Note**: Executing the command without the value removes the attribute from the model.\n */\nexport default class FontSizeCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor, FONT_SIZE );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/utils\n */\n\nimport { CKEditorError } from 'ckeditor5/src/utils';\nimport { type FontSizeOption } from '../fontconfig';\n\n/**\n * Normalizes and translates the {@link module:font/fontconfig~FontSizeConfig#options configuration options}\n * to the {@link module:font/fontconfig~FontSizeOption} format.\n *\n * @param configuredOptions An array of options taken from the configuration.\n */\nexport function normalizeOptions( configuredOptions: Array<string | number | FontSizeOption> ): Array<FontSizeOption> {\n\t// Convert options to objects.\n\treturn configuredOptions\n\t\t.map( item => getOptionDefinition( item ) )\n\t\t// Filter out undefined values that `getOptionDefinition` might return.\n\t\t.filter( ( option ): option is FontSizeOption => option !== undefined );\n}\n\n// Default named presets map. Always create a new instance of the preset object in order to avoid modifying references.\nconst namedPresets: Record<string, FontSizeOption> = {\n\tget tiny(): FontSizeOption {\n\t\treturn {\n\t\t\ttitle: 'Tiny',\n\t\t\tmodel: 'tiny',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-tiny',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t},\n\tget small(): FontSizeOption {\n\t\treturn {\n\t\t\ttitle: 'Small',\n\t\t\tmodel: 'small',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-small',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t},\n\tget big(): FontSizeOption {\n\t\treturn {\n\t\t\ttitle: 'Big',\n\t\t\tmodel: 'big',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-big',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t},\n\tget huge(): FontSizeOption {\n\t\treturn {\n\t\t\ttitle: 'Huge',\n\t\t\tmodel: 'huge',\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tclasses: 'text-huge',\n\t\t\t\tpriority: 7\n\t\t\t}\n\t\t};\n\t}\n};\n\n/**\n * Returns an option definition either from preset or creates one from number shortcut.\n * If object is passed then this method will return it without alternating it. Returns undefined for item than cannot be parsed.\n */\nfunction getOptionDefinition( option: string | number | FontSizeOption ): FontSizeOption | undefined {\n\tif ( typeof option === 'number' ) {\n\t\toption = String( option );\n\t}\n\n\t// Check whether passed option is a full item definition provided by user in configuration.\n\tif ( typeof option === 'object' && isFullItemDefinition( option ) ) {\n\t\treturn attachPriority( option );\n\t}\n\n\tconst preset = findPreset( option );\n\n\t// Item is a named preset.\n\tif ( preset ) {\n\t\treturn attachPriority( preset );\n\t}\n\n\t// 'Default' font size. It will be used to remove the fontSize attribute.\n\tif ( option === 'default' ) {\n\t\treturn {\n\t\t\tmodel: undefined,\n\t\t\ttitle: 'Default'\n\t\t};\n\t}\n\n\t// At this stage we probably have numerical value to generate a preset so parse it's value.\n\t// Discard any faulty values.\n\tif ( isNumericalDefinition( option ) ) {\n\t\treturn undefined;\n\t}\n\n\t// Return font size definition from size value.\n\treturn generatePixelPreset( option );\n}\n\n/**\n * Creates a predefined preset for pixel size.\n * @param definition Font size in pixels.\n * @returns\n */\nfunction generatePixelPreset( definition: string | FontSizeOption ): FontSizeOption {\n\t// Extend a short (numeric value) definition.\n\tif ( typeof definition === 'string' ) {\n\t\tdefinition = {\n\t\t\ttitle: definition,\n\t\t\tmodel: `${ parseFloat( definition ) }px`\n\t\t};\n\t}\n\n\tdefinition.view = {\n\t\tname: 'span',\n\t\tstyles: {\n\t\t\t'font-size': definition.model!\n\t\t}\n\t};\n\n\treturn attachPriority( definition );\n}\n\n/**\n * Adds the priority to the view element definition if missing. It's required due to ckeditor/ckeditor5#2291\n */\nfunction attachPriority( definition: FontSizeOption ): FontSizeOption {\n\tif ( definition.view && typeof definition.view !== 'string' && !definition.view.priority ) {\n\t\tdefinition.view!.priority = 7;\n\t}\n\n\treturn definition;\n}\n\n/**\n * Returns a prepared preset definition. If passed an object, a name of preset should be defined as `model` value.\n *\n * @param definition.model A preset name.\n */\nfunction findPreset( definition: string | { model?: string } ): FontSizeOption | undefined {\n\treturn typeof definition === 'string' ? namedPresets[ definition ] : namedPresets[ definition.model! ];\n}\n\n/**\n * We treat `definition` as completed if it is an object that contains `title`, `model` and `view` values.\n */\nfunction isFullItemDefinition( definition: Record<string, any> ): boolean {\n\treturn definition.title && definition.model && definition.view;\n}\n\nfunction isNumericalDefinition( definition: string | FontSizeOption ): boolean {\n\tlet numberValue;\n\n\tif ( typeof definition === 'object' ) {\n\t\tif ( !definition.model ) {\n\t\t\t/**\n\t\t\t * Provided value as an option for {@link module:font/fontsize~FontSize} seems to invalid.\n\t\t\t *\n\t\t\t * See valid examples described in the {@link module:font/fontconfig~FontSizeConfig#options plugin configuration}.\n\t\t\t *\n\t\t\t * @error font-size-invalid-definition\n\t\t\t */\n\t\t\tthrow new CKEditorError( 'font-size-invalid-definition', null, definition );\n\t\t} else {\n\t\t\tnumberValue = parseFloat( definition.model );\n\t\t}\n\t} else {\n\t\tnumberValue = parseFloat( definition );\n\t}\n\n\treturn isNaN( numberValue );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/fontsizeediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport { CKEditorError } from 'ckeditor5/src/utils';\nimport { isLength, isPercentage, type ViewElement } from 'ckeditor5/src/engine';\n\nimport FontSizeCommand from './fontsizecommand';\nimport { normalizeOptions } from './utils';\nimport { buildDefinition, FONT_SIZE, type FontConverterDefinition } from '../utils';\n\n// Mapping of `<font size=\"..\">` styling to CSS's `font-size` values.\nconst styleFontSize = [\n\t'x-small', // Size \"0\" equal to \"1\".\n\t'x-small',\n\t'small',\n\t'medium',\n\t'large',\n\t'x-large',\n\t'xx-large',\n\t'xxx-large'\n];\n\n/**\n * The font size editing feature.\n *\n * It introduces the {@link module:font/fontsize/fontsizecommand~FontSizeCommand command} and the `fontSize`\n * attribute in the {@link module:engine/model/model~Model model} which renders in the {@link module:engine/view/view view}\n * as a `<span>` element with either:\n * * a style attribute (`<span style=\"font-size:12px\">...</span>`),\n * * or a class attribute (`<span class=\"text-small\">...</span>`)\n *\n * depending on the {@link module:font/fontconfig~FontSizeConfig configuration}.\n */\nexport default class FontSizeEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontSizeEditing' {\n\t\treturn 'FontSizeEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t// Define default configuration using named presets.\n\t\teditor.config.define( FONT_SIZE, {\n\t\t\toptions: [\n\t\t\t\t'tiny',\n\t\t\t\t'small',\n\t\t\t\t'default',\n\t\t\t\t'big',\n\t\t\t\t'huge'\n\t\t\t],\n\t\t\tsupportAllValues: false\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Allow fontSize attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_SIZE } );\n\t\teditor.model.schema.setAttributeProperties( FONT_SIZE, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\n\t\tconst supportAllValues = editor.config.get( 'fontSize.supportAllValues' );\n\n\t\t// Define view to model conversion.\n\t\tconst options = normalizeOptions( this.editor.config.get( 'fontSize.options' )! )\n\t\t\t.filter( item => item.model );\n\t\tconst definition = buildDefinition( FONT_SIZE, options );\n\n\t\t// Set-up the two-way conversion.\n\t\tif ( supportAllValues ) {\n\t\t\tthis._prepareAnyValueConverters( definition );\n\t\t\tthis._prepareCompatibilityConverter();\n\t\t} else {\n\t\t\teditor.conversion.attributeToElement( definition );\n\t\t}\n\n\t\t// Add FontSize command.\n\t\teditor.commands.add( FONT_SIZE, new FontSizeCommand( editor ) );\n\t}\n\n\t/**\n\t * These converters enable keeping any value found as `style=\"font-size: *\"` as a value of an attribute on a text even\n\t * if it is not defined in the plugin configuration.\n\t *\n\t * @param definition Converter definition out of input data.\n\t */\n\tprivate _prepareAnyValueConverters( definition: FontConverterDefinition ): void {\n\t\tconst editor = this.editor;\n\n\t\t// If `fontSize.supportAllValues=true`, we do not allow to use named presets in the plugin's configuration.\n\t\tconst presets = definition.model!.values.filter( ( value: any ) => {\n\t\t\treturn !isLength( String( value ) ) && !isPercentage( String( value ) );\n\t\t} );\n\n\t\tif ( presets.length ) {\n\t\t\t/**\n\t\t\t * If {@link module:font/fontconfig~FontSizeConfig#supportAllValues `config.fontSize.supportAllValues`} is `true`,\n\t\t\t * you need to use numerical values as font size options.\n\t\t\t *\n\t\t\t * See valid examples described in the {@link module:font/fontconfig~FontSizeConfig#options plugin configuration}.\n\t\t\t *\n\t\t\t * @error font-size-invalid-use-of-named-presets\n\t\t\t * @param {Array.<String>} presets Invalid values.\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'font-size-invalid-use-of-named-presets',\n\t\t\t\tnull, { presets }\n\t\t\t);\n\t\t}\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_SIZE,\n\t\t\tview: ( attributeValue, { writer } ) => {\n\t\t\t\tif ( !attributeValue ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\treturn writer.createAttributeElement( 'span', { style: 'font-size:' + attributeValue }, { priority: 7 } );\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_SIZE,\n\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getStyle( 'font-size' )\n\t\t\t},\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'font-size': /.*/\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Adds support for legacy `<font size=\"..\">` formatting.\n\t */\n\tprivate _prepareCompatibilityConverter(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'font',\n\t\t\t\tattributes: {\n\t\t\t\t\t// Documentation mentions sizes from 1 to 7. To handle old content we support all values\n\t\t\t\t\t// up to 999 but clamp it to the valid range. Why 999? It should cover accidental values\n\t\t\t\t\t// similar to percentage, e.g. 100%, 200% which could be the usual mistake for font size.\n\t\t\t\t\t'size': /^[+-]?\\d{1,3}$/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_SIZE,\n\t\t\t\tvalue: ( viewElement: ViewElement ) => {\n\t\t\t\t\tconst value = viewElement.getAttribute( 'size' )!;\n\t\t\t\t\tconst isRelative = value[ 0 ] === '-' || value[ 0 ] === '+';\n\n\t\t\t\t\tlet size = parseInt( value, 10 );\n\n\t\t\t\t\tif ( isRelative ) {\n\t\t\t\t\t\t// Add relative size (which can be negative) to the default size = 3.\n\t\t\t\t\t\tsize = 3 + size;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst maxSize = styleFontSize.length - 1;\n\t\t\t\t\tconst clampedSize = Math.min( Math.max( size, 0 ), maxSize );\n\n\t\t\t\t\treturn styleFontSize[ clampedSize ];\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./fontsize.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize/fontsizeui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport {\n\tModel,\n\tcreateDropdown,\n\taddListToDropdown,\n\ttype ListDropdownItemDefinition\n} from 'ckeditor5/src/ui';\nimport { Collection } from 'ckeditor5/src/utils';\n\nimport { normalizeOptions } from './utils';\nimport { FONT_SIZE } from '../utils';\n\nimport '../../theme/fontsize.css';\nimport type { FontSizeOption } from '../fontconfig';\nimport type FontSizeCommand from './fontsizecommand';\n\nimport fontSizeIcon from '../../theme/icons/font-size.svg';\n\n/**\n * The font size UI plugin. It introduces the `'fontSize'` dropdown.\n */\nexport default class FontSizeUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontSizeUI' {\n\t\treturn 'FontSizeUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst options = this._getLocalizedOptions();\n\n\t\tconst command: FontSizeCommand = editor.commands.get( FONT_SIZE )!;\n\n\t\t// Register UI component.\n\t\teditor.ui.componentFactory.add( FONT_SIZE, locale => {\n\t\t\tconst dropdownView = createDropdown( locale );\n\n\t\t\taddListToDropdown( dropdownView, () => _prepareListOptions( options, command ) );\n\n\t\t\t// Create dropdown model.\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tlabel: t( 'Font Size' ),\n\t\t\t\ticon: fontSizeIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: [\n\t\t\t\t\t\t'ck-font-size-dropdown'\n\t\t\t\t\t]\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\t// Execute command when an item from the dropdown is selected.\n\t\t\tthis.listenTo( dropdownView, 'execute', evt => {\n\t\t\t\teditor.execute( ( evt.source as any ).commandName, { value: ( evt.source as any ).commandParam } );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * Returns options as defined in `config.fontSize.options` but processed to account for\n\t * editor localization, i.e. to display {@link module:font/fontconfig~FontSizeOption}\n\t * in the correct language.\n\t *\n\t * Note: The reason behind this method is that there is no way to use {@link module:utils/locale~Locale#t}\n\t * when the user configuration is defined because the editor does not exist yet.\n\t */\n\tprivate _getLocalizedOptions(): Array<FontSizeOption> {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\tconst localizedTitles: Record<string, string> = {\n\t\t\tDefault: t( 'Default' ),\n\t\t\tTiny: t( 'Tiny' ),\n\t\t\tSmall: t( 'Small' ),\n\t\t\tBig: t( 'Big' ),\n\t\t\tHuge: t( 'Huge' )\n\t\t};\n\n\t\tconst options = normalizeOptions( ( editor.config.get( FONT_SIZE )! ).options! );\n\n\t\treturn options.map( option => {\n\t\t\tconst title = localizedTitles[ option.title ];\n\n\t\t\tif ( title && title != option.title ) {\n\t\t\t\t// Clone the option to avoid altering the original `namedPresets` from `./utils.js`.\n\t\t\t\toption = Object.assign( {}, option, { title } );\n\t\t\t}\n\n\t\t\treturn option;\n\t\t} );\n\t}\n}\n\n/**\n * Prepares FontSize dropdown items.\n */\nfunction _prepareListOptions( options: Array<FontSizeOption>, command: FontSizeCommand ): Collection<ListDropdownItemDefinition> {\n\tconst itemDefinitions = new Collection<ListDropdownItemDefinition>();\n\n\tfor ( const option of options ) {\n\t\tconst def = {\n\t\t\ttype: 'button' as const,\n\t\t\tmodel: new Model( {\n\t\t\t\tcommandName: FONT_SIZE,\n\t\t\t\tcommandParam: option.model,\n\t\t\t\tlabel: option.title,\n\t\t\t\tclass: 'ck-fontsize-option',\n\t\t\t\twithText: true\n\t\t\t} )\n\t\t};\n\n\t\tif ( option.view && typeof option.view !== 'string' ) {\n\t\t\tif ( option.view.styles ) {\n\t\t\t\tdef.model.set( 'labelStyle', `font-size:${ option.view.styles[ 'font-size' ] }` );\n\t\t\t}\n\t\t\tif ( option.view.classes ) {\n\t\t\t\tdef.model.set( 'class', `${ def.model.class } ${ option.view.classes }` );\n\t\t\t}\n\t\t}\n\n\t\tdef.model.bind( 'isOn' ).to( command, 'value', value => value === option.model );\n\n\t\t// Add the option to the collection.\n\t\titemDefinitions.add( def );\n\t}\n\n\treturn itemDefinitions;\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M9.816 11.5 7.038 4.785 4.261 11.5h5.555zm.62 1.5H3.641l-1.666 4.028H.312l5.789-14h1.875l5.789 14h-1.663L10.436 13zm7.55 2.279.779-.779.707.707-2.265 2.265-2.193-2.265.707-.707.765.765V4.825c0-.042 0-.083.002-.123l-.77.77-.707-.707L17.207 2.5l2.265 2.265-.707.707-.782-.782c.002.043.003.089.003.135v10.454z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontsize\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontSizeEditing from './fontsize/fontsizeediting';\nimport FontSizeUI from './fontsize/fontsizeui';\nimport { normalizeOptions } from './fontsize/utils';\nimport type { FontSizeOption } from './fontconfig';\n\n/**\n * The font size plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentation\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:font/fontsize/fontsizeediting~FontSizeEditing} and\n * {@link module:font/fontsize/fontsizeui~FontSizeUI} features in the editor.\n */\nexport default class FontSize extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FontSizeEditing, FontSizeUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontSize' {\n\t\treturn 'FontSize';\n\t}\n\n\t/**\n\t * Normalizes and translates the {@link module:font/fontconfig~FontSizeConfig#options configuration options}\n\t * to the {@link module:font/fontconfig~FontSizeOption} format.\n\t *\n\t * @param configuredOptions An array of options taken from the configuration.\n\t */\n\tpublic normalizeSizeOptions( options: Array<string | number | FontSizeOption> ): Array<FontSizeOption> {\n\t\treturn normalizeOptions( options );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor/fontcolorcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport FontCommand from '../fontcommand';\nimport { FONT_COLOR } from '../utils';\n\n/**\n * The font color command. It is used by {@link module:font/fontcolor/fontcolorediting~FontColorEditing}\n * to apply the font color.\n *\n * ```ts\n * editor.execute( 'fontColor', { value: 'rgb(250, 20, 20)' } );\n * ```\n *\n * **Note**: Executing the command with the `null` value removes the attribute from the model.\n */\nexport default class FontColorCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor, FONT_COLOR );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor/fontcolorediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport FontColorCommand from './fontcolorcommand';\nimport type { ViewElement } from 'ckeditor5/src/engine';\nimport { FONT_COLOR, renderDowncastElement, renderUpcastAttribute } from '../utils';\n\n/**\n * The font color editing feature.\n *\n * It introduces the {@link module:font/fontcolor/fontcolorcommand~FontColorCommand command} and\n * the `fontColor` attribute in the {@link module:engine/model/model~Model model} which renders\n * in the {@link module:engine/view/view view} as a `<span>` element (`<span style=\"color: ...\">`),\n * depending on the {@link module:font/fontconfig~FontColorConfig configuration}.\n */\nexport default class FontColorEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontColorEditing' {\n\t\treturn 'FontColorEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( FONT_COLOR, {\n\t\t\tcolors: [\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 0%)',\n\t\t\t\t\tlabel: 'Black'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 30%)',\n\t\t\t\t\tlabel: 'Dim grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n\t\t\t\t\tlabel: 'Grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n\t\t\t\t\tlabel: 'Light grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n\t\t\t\t\tlabel: 'White',\n\t\t\t\t\thasBorder: true\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 75%, 60%)',\n\t\t\t\t\tlabel: 'Red'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(30, 75%, 60%)',\n\t\t\t\t\tlabel: 'Orange'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(60, 75%, 60%)',\n\t\t\t\t\tlabel: 'Yellow'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(90, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n\t\t\t\t\tlabel: 'Green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(150, 75%, 60%)',\n\t\t\t\t\tlabel: 'Aquamarine'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(180, 75%, 60%)',\n\t\t\t\t\tlabel: 'Turquoise'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(210, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(240, 75%, 60%)',\n\t\t\t\t\tlabel: 'Blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(270, 75%, 60%)',\n\t\t\t\t\tlabel: 'Purple'\n\t\t\t\t}\n\t\t\t],\n\t\t\tcolumns: 5\n\t\t} );\n\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'color': /[\\s\\S]+/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_COLOR,\n\t\t\t\tvalue: renderUpcastAttribute( 'color' )\n\t\t\t}\n\t\t} );\n\n\t\t// Support legacy `<font color=\"..\">` formatting.\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'font',\n\t\t\t\tattributes: {\n\t\t\t\t\t'color': /^#?\\w+$/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_COLOR,\n\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getAttribute( 'color' )\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_COLOR,\n\t\t\tview: renderDowncastElement( 'color' )\n\t\t} );\n\n\t\teditor.commands.add( FONT_COLOR, new FontColorCommand( editor ) );\n\n\t\t// Allow the font color attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_COLOR } );\n\n\t\teditor.model.schema.setAttributeProperties( FONT_COLOR, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/ui/colorui\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport { createDropdown, normalizeColorOptions, getLocalizedColorOptions, focusChildOnDropdownOpen } from 'ckeditor5/src/ui';\n\nimport {\n\taddColorTableToDropdown,\n\ttype ColorTableDropdownView,\n\ttype FONT_BACKGROUND_COLOR,\n\ttype FONT_COLOR\n} from '../utils';\nimport type ColorTableView from './colortableview';\nimport type FontColorCommand from '../fontcolor/fontcolorcommand';\nimport type FontBackgroundColorCommand from '../fontbackgroundcolor/fontbackgroundcolorcommand';\n\n/**\n * The color UI plugin which isolates the common logic responsible for displaying dropdowns with color grids.\n *\n * It is used to create the `'fontBackgroundColor'` and `'fontColor'` dropdowns, each hosting\n * a {@link module:font/ui/colortableview~ColorTableView}.\n */\nexport default class ColorUI extends Plugin {\n\t/**\n\t * The name of the command which will be executed when a color tile is clicked.\n\t */\n\tpublic commandName: typeof FONT_BACKGROUND_COLOR | typeof FONT_COLOR;\n\n\t/**\n\t * The name of this component in the {@link module:ui/componentfactory~ComponentFactory}.\n\t * Also the configuration scope name in `editor.config`.\n\t */\n\tpublic componentName: typeof FONT_BACKGROUND_COLOR | typeof FONT_COLOR;\n\n\t/**\n\t * The SVG icon used by the dropdown.\n\t */\n\tpublic icon: string;\n\n\t/**\n\t * The label used by the dropdown.\n\t */\n\tpublic dropdownLabel: string;\n\n\t/**\n\t * The number of columns in the color grid.\n\t */\n\tpublic columns: number;\n\n\t/**\n\t * Keeps a reference to {@link module:font/ui/colortableview~ColorTableView}.\n\t */\n\tpublic colorTableView: ColorTableView | undefined;\n\n\t/**\n\t * Creates a plugin which introduces a dropdown with a pre–configured {@link module:font/ui/colortableview~ColorTableView}.\n\t *\n\t * @param config The configuration object.\n\t * @param config.commandName The name of the command which will be executed when a color tile is clicked.\n\t * @param config.componentName The name of the dropdown in the {@link module:ui/componentfactory~ComponentFactory}\n\t * and the configuration scope name in `editor.config`.\n\t * @param config.icon The SVG icon used by the dropdown.\n\t * @param config.dropdownLabel The label used by the dropdown.\n\t */\n\tconstructor(\n\t\teditor: Editor,\n\t\t{ commandName, componentName, icon, dropdownLabel }: {\n\t\t\tcommandName: typeof FONT_BACKGROUND_COLOR | typeof FONT_COLOR;\n\t\t\tcomponentName: typeof FONT_BACKGROUND_COLOR | typeof FONT_COLOR;\n\t\t\ticon: string;\n\t\t\tdropdownLabel: string;\n\t\t}\n\t) {\n\t\tsuper( editor );\n\n\t\tthis.commandName = commandName;\n\t\tthis.componentName = componentName;\n\t\tthis.icon = icon;\n\t\tthis.dropdownLabel = dropdownLabel;\n\t\tthis.columns = editor.config.get( `${ this.componentName }.columns` )!;\n\t\tthis.colorTableView = undefined;\n\t}\n\n\t/**\n\t* @inheritDoc\n\t*/\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst locale = editor.locale;\n\t\tconst t = locale.t;\n\t\tconst command: FontColorCommand | FontBackgroundColorCommand = editor.commands.get( this.commandName )!;\n\t\tconst colorsConfig = normalizeColorOptions( ( editor.config.get( this.componentName )! ).colors! );\n\t\tconst localizedColors = getLocalizedColorOptions( locale, colorsConfig );\n\t\tconst documentColorsCount = editor.config.get( `${ this.componentName }.documentColors` )!;\n\n\t\t// Register the UI component.\n\t\teditor.ui.componentFactory.add( this.componentName, locale => {\n\t\t\tconst dropdownView: ColorTableDropdownView = createDropdown( locale );\n\n\t\t\tthis.colorTableView = addColorTableToDropdown( {\n\t\t\t\tdropdownView,\n\t\t\t\tcolors: localizedColors.map( option => ( {\n\t\t\t\t\tlabel: option.label,\n\t\t\t\t\tcolor: option.model,\n\t\t\t\t\toptions: {\n\t\t\t\t\t\thasBorder: option.hasBorder\n\t\t\t\t\t}\n\t\t\t\t} ) ),\n\t\t\t\tcolumns: this.columns,\n\t\t\t\tremoveButtonLabel: t( 'Remove color' ),\n\t\t\t\tdocumentColorsLabel: documentColorsCount !== 0 ? t( 'Document colors' ) : '',\n\t\t\t\tdocumentColorsCount: documentColorsCount === undefined ? this.columns : documentColorsCount\n\t\t\t} );\n\n\t\t\tthis.colorTableView.bind( 'selectedColor' ).to( command, 'value' );\n\n\t\t\tdropdownView.buttonView.set( {\n\t\t\t\tlabel: this.dropdownLabel,\n\t\t\t\ticon: this.icon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tdropdownView.extendTemplate( {\n\t\t\t\tattributes: {\n\t\t\t\t\tclass: 'ck-color-ui-dropdown'\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\tdropdownView.on( 'execute', ( evt, data ) => {\n\t\t\t\teditor.execute( this.commandName, data );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\tdropdownView.on( 'change:isOpen', ( evt, name, isVisible ) => {\n\t\t\t\t// Grids rendering is deferred (#6192).\n\t\t\t\tdropdownView.colorTableView!.appendGrids();\n\n\t\t\t\tif ( isVisible ) {\n\t\t\t\t\tif ( documentColorsCount !== 0 ) {\n\t\t\t\t\t\tthis.colorTableView!.updateDocumentColors( editor.model, this.componentName );\n\t\t\t\t\t}\n\t\t\t\t\tthis.colorTableView!.updateSelectedColors();\n\t\t\t\t}\n\t\t\t} );\n\n\t\t\t// Accessibility: focus the first active color when opening the dropdown.\n\t\t\tfocusChildOnDropdownOpen(\n\t\t\t\tdropdownView,\n\t\t\t\t() => dropdownView.colorTableView!.staticColorsGrid!.items.find( ( item: any ) => item.isOn )\n\t\t\t);\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n}\n\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor/fontcolorui\n */\n\nimport ColorUI from '../ui/colorui';\nimport { FONT_COLOR } from '../utils';\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport fontColorIcon from '../../theme/icons/font-color.svg';\n\n/**\n * The font color UI plugin. It introduces the `'fontColor'` dropdown.\n */\nexport default class FontColorUI extends ColorUI {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tconst t = editor.locale.t;\n\n\t\tsuper( editor, {\n\t\t\tcommandName: FONT_COLOR,\n\t\t\tcomponentName: FONT_COLOR,\n\t\t\ticon: fontColorIcon,\n\t\t\tdropdownLabel: t( 'Font Color' )\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontColorUI' {\n\t\treturn 'FontColorUI';\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M12.4 10.3 10 4.5l-2.4 5.8h4.8zm.5 1.2H7.1L5.7 15H4.2l5-12h1.6l5 12h-1.5L13 11.5zm3.1 7H4a1 1 0 0 1 0-2h12a1 1 0 0 1 0 2z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontcolor\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontColorEditing from './fontcolor/fontcolorediting';\nimport FontColorUI from './fontcolor/fontcolorui';\n\n/**\n * The font color plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentation\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:font/fontcolor/fontcolorediting~FontColorEditing} and\n * {@link module:font/fontcolor/fontcolorui~FontColorUI} features in the editor.\n */\nexport default class FontColor extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FontColorEditing, FontColorUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontColor' {\n\t\treturn 'FontColor';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor/fontbackgroundcolorcommand\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport FontCommand from '../fontcommand';\nimport { FONT_BACKGROUND_COLOR } from '../utils';\n\n/**\n * The font background color command. It is used by\n * {@link module:font/fontbackgroundcolor/fontbackgroundcolorediting~FontBackgroundColorEditing}\n * to apply the font background color.\n *\n * ```ts\n * editor.execute( 'fontBackgroundColor', { value: 'rgb(250, 20, 20)' } );\n * ```\n *\n * **Note**: Executing the command with the `null` value removes the attribute from the model.\n */\nexport default class FontBackgroundColorCommand extends FontCommand {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor, FONT_BACKGROUND_COLOR );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor/fontbackgroundcolorediting\n */\n\nimport { Plugin, type Editor } from 'ckeditor5/src/core';\nimport { addBackgroundRules } from 'ckeditor5/src/engine';\n\nimport FontBackgroundColorCommand from './fontbackgroundcolorcommand';\nimport { FONT_BACKGROUND_COLOR, renderDowncastElement, renderUpcastAttribute } from '../utils';\n\n/**\n * The font background color editing feature.\n *\n * It introduces the {@link module:font/fontbackgroundcolor/fontbackgroundcolorcommand~FontBackgroundColorCommand command} and\n * the `fontBackgroundColor` attribute in the {@link module:engine/model/model~Model model} which renders\n * in the {@link module:engine/view/view view} as a `<span>` element (`<span style=\"background-color: ...\">`),\n * depending on the {@link module:font/fontconfig~FontColorConfig configuration}.\n */\nexport default class FontBackgroundColorEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontBackgroundColorEditing' {\n\t\treturn 'FontBackgroundColorEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( FONT_BACKGROUND_COLOR, {\n\t\t\tcolors: [\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 0%)',\n\t\t\t\t\tlabel: 'Black'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 30%)',\n\t\t\t\t\tlabel: 'Dim grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 60%)',\n\t\t\t\t\tlabel: 'Grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 90%)',\n\t\t\t\t\tlabel: 'Light grey'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 0%, 100%)',\n\t\t\t\t\tlabel: 'White',\n\t\t\t\t\thasBorder: true\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(0, 75%, 60%)',\n\t\t\t\t\tlabel: 'Red'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(30, 75%, 60%)',\n\t\t\t\t\tlabel: 'Orange'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(60, 75%, 60%)',\n\t\t\t\t\tlabel: 'Yellow'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(90, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(120, 75%, 60%)',\n\t\t\t\t\tlabel: 'Green'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(150, 75%, 60%)',\n\t\t\t\t\tlabel: 'Aquamarine'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(180, 75%, 60%)',\n\t\t\t\t\tlabel: 'Turquoise'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(210, 75%, 60%)',\n\t\t\t\t\tlabel: 'Light blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(240, 75%, 60%)',\n\t\t\t\t\tlabel: 'Blue'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tcolor: 'hsl(270, 75%, 60%)',\n\t\t\t\t\tlabel: 'Purple'\n\t\t\t\t}\n\t\t\t],\n\t\t\tcolumns: 5\n\t\t} );\n\n\t\teditor.data.addStyleProcessorRules( addBackgroundRules );\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tstyles: {\n\t\t\t\t\t'background-color': /[\\s\\S]+/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: FONT_BACKGROUND_COLOR,\n\t\t\t\tvalue: renderUpcastAttribute( 'background-color' )\n\t\t\t}\n\t\t} );\n\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: FONT_BACKGROUND_COLOR,\n\t\t\tview: renderDowncastElement( 'background-color' )\n\t\t} );\n\n\t\teditor.commands.add( FONT_BACKGROUND_COLOR, new FontBackgroundColorCommand( editor ) );\n\n\t\t// Allow the font backgroundColor attribute on text nodes.\n\t\teditor.model.schema.extend( '$text', { allowAttributes: FONT_BACKGROUND_COLOR } );\n\n\t\teditor.model.schema.setAttributeProperties( FONT_BACKGROUND_COLOR, {\n\t\t\tisFormatting: true,\n\t\t\tcopyOnEnter: true\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor/fontbackgroundcolorui\n */\n\nimport ColorUI from '../ui/colorui';\nimport { FONT_BACKGROUND_COLOR } from '../utils';\nimport type { Editor } from 'ckeditor5/src/core';\n\nimport fontBackgroundColorIcon from '../../theme/icons/font-background.svg';\n\n/**\n * The font background color UI plugin. It introduces the `'fontBackgroundColor'` dropdown.\n */\nexport default class FontBackgroundColorUI extends ColorUI {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tconst t = editor.locale.t;\n\n\t\tsuper( editor, {\n\t\t\tcommandName: FONT_BACKGROUND_COLOR,\n\t\t\tcomponentName: FONT_BACKGROUND_COLOR,\n\t\t\ticon: fontBackgroundColorIcon,\n\t\t\tdropdownLabel: t( 'Font Background Color' )\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontBackgroundColorUI' {\n\t\treturn 'FontBackgroundColorUI';\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M4 2h12a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2zm8.38 9.262H7.62L10 5.506l2.38 5.756zm.532 1.285L14.34 16h1.426L10.804 4H9.196L4.234 16H5.66l1.428-3.453h5.824z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/fontbackgroundcolor\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FontBackgroundColorEditing from './fontbackgroundcolor/fontbackgroundcolorediting';\nimport FontBackgroundColorUI from './fontbackgroundcolor/fontbackgroundcolorui';\n\n/**\n * The font background color plugin.\n *\n * For a detailed overview, check the {@glink features/font font feature} documentation\n * and the {@glink api/font package page}.\n *\n * This is a \"glue\" plugin which loads\n * the {@link module:font/fontbackgroundcolor/fontbackgroundcolorediting~FontBackgroundColorEditing} and\n * {@link module:font/fontbackgroundcolor/fontbackgroundcolorui~FontBackgroundColorUI} features in the editor.\n */\nexport default class FontBackgroundColor extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FontBackgroundColorEditing, FontBackgroundColorUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FontBackgroundColor' {\n\t\treturn 'FontBackgroundColor';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/utils\n */\n\nimport type { Editor } from 'ckeditor5/src/core';\nimport type { CodeBlockLanguageDefinition } from './codeblockconfig';\nimport { first } from 'ckeditor5/src/utils';\nimport type {\n\tDocumentSelection,\n\tElement,\n\tModel,\n\tPosition,\n\tSchema,\n\tText,\n\tUpcastWriter,\n\tViewDocumentFragment,\n\tViewElement\n} from 'ckeditor5/src/engine';\n\n/**\n * Returns code block languages as defined in `config.codeBlock.languages` but processed:\n *\n * * To consider the editor localization, i.e. to display {@link module:code-block/codeblockconfig~CodeBlockLanguageDefinition}\n * in the correct language. There is no way to use {@link module:utils/locale~Locale#t} when the user\n * configuration is defined because the editor does not exist yet.\n * * To make sure each definition has a CSS class associated with it even if not specified\n * in the original configuration.\n */\nexport function getNormalizedAndLocalizedLanguageDefinitions( editor: Editor ): Array<CodeBlockLanguageDefinition> {\n\tconst t = editor.t;\n\tconst languageDefs = editor.config.get( 'codeBlock.languages' ) as Array<CodeBlockLanguageDefinition>;\n\n\tfor ( const def of languageDefs ) {\n\t\tif ( def.label === 'Plain text' ) {\n\t\t\tdef.label = t( 'Plain text' );\n\t\t}\n\n\t\tif ( def.class === undefined ) {\n\t\t\tdef.class = `language-${ def.language }`;\n\t\t}\n\t}\n\n\treturn languageDefs;\n}\n\n/**\n * Returns an object associating certain language definition properties with others. For instance:\n *\n * For:\n *\n * ```ts\n * const definitions = {\n * \t{ language: 'php', class: 'language-php', label: 'PHP' },\n * \t{ language: 'javascript', class: 'js', label: 'JavaScript' },\n * };\n *\n * getPropertyAssociation( definitions, 'class', 'language' );\n * ```\n *\n * returns:\n *\n * ```ts\n * {\n * \t'language-php': 'php',\n * \t'js': 'javascript'\n * }\n * ```\n *\n * and\n *\n * ```ts\n * getPropertyAssociation( definitions, 'language', 'label' );\n * ```\n *\n * returns:\n *\n * ```ts\n * {\n * \t'php': 'PHP',\n * \t'javascript': 'JavaScript'\n * }\n * ```\n */\nexport function getPropertyAssociation(\n\tlanguageDefs: Array<CodeBlockLanguageDefinition>,\n\tkey: keyof CodeBlockLanguageDefinition,\n\tvalue: keyof CodeBlockLanguageDefinition\n): Record<string, string> {\n\tconst association: Record<string, string> = {};\n\n\tfor ( const def of languageDefs ) {\n\t\tif ( key === 'class' ) {\n\t\t\t// Only the first class is considered.\n\t\t\tconst newKey = ( def[ key ]! ).split( ' ' ).shift()!;\n\n\t\t\tassociation[ newKey ] = def[ value ]!;\n\t\t} else {\n\t\t\tassociation[ def[ key ]! ] = def[ value ]!;\n\t\t}\n\t}\n\n\treturn association;\n}\n\n/**\n * For a given model text node, it returns white spaces that precede other characters in that node.\n * This corresponds to the indentation part of the code block line.\n */\nexport function getLeadingWhiteSpaces( textNode: Text ): string {\n\treturn textNode.data.match( /^(\\s*)/ )![ 0 ];\n}\n\n/**\n * For plain text containing the code (a snippet), it returns a document fragment containing\n * view text nodes separated by `<br>` elements (in place of new line characters \"\\n\"), for instance:\n *\n * Input:\n *\n * ```ts\n * \"foo()\\n\n * bar()\"\n * ```\n *\n * Output:\n *\n * ```html\n * <DocumentFragment>\n * \t\"foo()\"\n * \t<br/>\n * \t\"bar()\"\n * </DocumentFragment>\n * ```\n *\n * @param text The raw code text to be converted.\n */\nexport function rawSnippetTextToViewDocumentFragment( writer: UpcastWriter, text: string ): ViewDocumentFragment {\n\tconst fragment = writer.createDocumentFragment();\n\tconst textLines = text.split( '\\n' );\n\n\tconst items = textLines.reduce( ( nodes: Array<string | ViewElement>, line, lineIndex ) => {\n\t\tnodes.push( line );\n\n\t\tif ( lineIndex < textLines.length - 1 ) {\n\t\t\tnodes.push( writer.createElement( 'br' ) );\n\t\t}\n\n\t\treturn nodes;\n\t}, [] );\n\n\twriter.appendChild( items, fragment );\n\n\treturn fragment;\n}\n\n/**\n * Returns an array of all model positions within the selection that represent code block lines.\n *\n * If the selection is collapsed, it returns the exact selection anchor position:\n *\n * ```html\n * <codeBlock>[]foo</codeBlock>        ->     <codeBlock>^foo</codeBlock>\n * <codeBlock>foo[]bar</codeBlock>     ->     <codeBlock>foo^bar</codeBlock>\n * ```\n *\n * Otherwise, it returns positions **before** each text node belonging to all code blocks contained by the selection:\n *\n * ```html\n * <codeBlock>                                <codeBlock>\n *     foo[bar                                   ^foobar\n *     <softBreak></softBreak>         ->        <softBreak></softBreak>\n *     baz]qux                                   ^bazqux\n * </codeBlock>                               </codeBlock>\n * ```\n *\n * It also works across other non–code blocks:\n *\n * ```html\n * <codeBlock>                                <codeBlock>\n *     foo[bar                                   ^foobar\n * </codeBlock>                               </codeBlock>\n * <paragraph>text</paragraph>         ->     <paragraph>text</paragraph>\n * <codeBlock>                                <codeBlock>\n *     baz]qux                                   ^bazqux\n * </codeBlock>                               </codeBlock>\n * ```\n *\n * **Note:** The positions are in reverse order so they do not get outdated when iterating over them and\n * the writer inserts or removes elements at the same time.\n *\n * **Note:** The position is located after the leading white spaces in the text node.\n */\nexport function getIndentOutdentPositions( model: Model ): Array<Position> {\n\tconst selection = model.document.selection;\n\tconst positions: Array<Position> = [];\n\n\t// When the selection is collapsed, there's only one position we can indent or outdent.\n\tif ( selection.isCollapsed ) {\n\t\treturn [ selection.anchor! ];\n\t}\n\n\t// When the selection is NOT collapsed, collect all positions starting before text nodes\n\t// (code lines) in any <codeBlock> within the selection.\n\n\t// Walk backward so positions we are about to collect here do not get outdated when\n\t// inserting or deleting using the writer.\n\n\tconst walker = selection.getFirstRange()!.getWalker( {\n\t\tignoreElementEnd: true,\n\t\tdirection: 'backward'\n\t} );\n\n\tfor ( const { item } of walker ) {\n\t\tif ( !item.is( '$textProxy' ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst { parent, startOffset } = item.textNode;\n\n\t\tif ( !parent!.is( 'element', 'codeBlock' ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tconst leadingWhiteSpaces = getLeadingWhiteSpaces( item.textNode );\n\t\t// Make sure the position is after all leading whitespaces in the text node.\n\t\tconst position = model.createPositionAt( parent, startOffset! + leadingWhiteSpaces.length );\n\n\t\tpositions.push( position );\n\t}\n\n\treturn positions;\n}\n\n/**\n * Checks if any of the blocks within the model selection is a code block.\n */\nexport function isModelSelectionInCodeBlock( selection: DocumentSelection ): boolean {\n\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\treturn !!firstBlock && firstBlock.is( 'element', 'codeBlock' );\n}\n\n/**\n * Checks if an {@link module:engine/model/element~Element Element} can become a code block.\n *\n * @param schema Model's schema.\n * @param element The element to be checked.\n * @returns Check result.\n */\nexport function canBeCodeBlock( schema: Schema, element: Element ): boolean {\n\tif ( element.is( 'rootElement' ) || schema.isLimit( element ) ) {\n\t\treturn false;\n\t}\n\n\treturn schema.checkChild( element.parent as Element, 'codeBlock' );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblockcommand\n */\n\nimport type { Element, Writer } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\nimport { getNormalizedAndLocalizedLanguageDefinitions, canBeCodeBlock } from './utils';\n\n/**\n * The code block command plugin.\n */\nexport default class CodeBlockCommand extends Command {\n\t/**\n\t * Contains the last used language.\n\t */\n\tprivate _lastLanguage: string | null;\n\n\t/**\n\t * Contains language if any is selected, false otherwise.\n\t * @observable\n\t * @readonly\n\t */\n\tdeclare public value: string | false;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._lastLanguage = null;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.value = this._getValue();\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #value is on}, all topmost code blocks within\n\t * the selection will be removed. If it is off, all selected blocks will be flattened and\n\t * wrapped by a code block.\n\t *\n\t * @fires execute\n\t * @param options Command options.\n\t * @param options.language The code block language.\n\t * @param options.forceValue If set, it will force the command behavior. If `true`, the command will apply a code block,\n\t * otherwise the command will remove the code block. If not set, the command will act basing on its current value.\n\t * @param options.usePreviousLanguageChoice If set on `true` and the `options.language` is not specified, the command\n\t * will apply the previous language (if the command was already executed) when inserting the `codeBlock` element.\n\t */\n\tpublic override execute( options: {\n\t\tlanguage?: string;\n\t\tforceValue?: boolean;\n\t\tusePreviousLanguageChoice?: boolean;\n\t} = {} ): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst normalizedLanguagesDefs = getNormalizedAndLocalizedLanguageDefinitions( editor );\n\t\tconst firstLanguageInConfig = normalizedLanguagesDefs[ 0 ];\n\n\t\tconst blocks = Array.from( selection.getSelectedBlocks() );\n\t\tconst value = options.forceValue == undefined ? !this.value : options.forceValue;\n\t\tconst language = getLanguage( options, this._lastLanguage, firstLanguageInConfig.language );\n\n\t\tmodel.change( writer => {\n\t\t\tif ( value ) {\n\t\t\t\tthis._applyCodeBlock( writer, blocks, language );\n\t\t\t} else {\n\t\t\t\tthis._removeCodeBlock( writer, blocks );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks the command's {@link #value}.\n\t *\n\t * @returns The current value.\n\t */\n\tprivate _getValue(): string | false {\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\t\tconst isCodeBlock = !!( firstBlock && firstBlock.is( 'element', 'codeBlock' ) );\n\n\t\treturn isCodeBlock ? firstBlock.getAttribute( 'language' ) as string : false;\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @returns Whether the command should be enabled.\n\t */\n\tprivate _checkEnabled(): boolean {\n\t\tif ( this.value ) {\n\t\t\treturn true;\n\t\t}\n\n\t\tconst selection = this.editor.model.document.selection;\n\t\tconst schema = this.editor.model.schema;\n\n\t\tconst firstBlock = first( selection.getSelectedBlocks() );\n\n\t\tif ( !firstBlock ) {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn canBeCodeBlock( schema, firstBlock );\n\t}\n\n\tprivate _applyCodeBlock( writer: Writer, blocks: Array<Element>, language: string ): void {\n\t\tthis._lastLanguage = language;\n\n\t\tconst schema = this.editor.model.schema;\n\t\tconst allowedBlocks = blocks.filter( block => canBeCodeBlock( schema, block ) );\n\n\t\tfor ( const block of allowedBlocks ) {\n\t\t\twriter.rename( block, 'codeBlock' );\n\t\t\twriter.setAttribute( 'language', language, block );\n\t\t\tschema.removeDisallowedAttributes( [ block ], writer );\n\n\t\t\t// Remove children of the  `codeBlock` element that are not allowed. See #9567.\n\t\t\tArray.from( block.getChildren() )\n\t\t\t\t.filter( child => !schema.checkChild( block, child ) )\n\t\t\t\t.forEach( child => writer.remove( child ) );\n\t\t}\n\n\t\tallowedBlocks.reverse().forEach( ( currentBlock, i ) => {\n\t\t\tconst nextBlock = allowedBlocks[ i + 1 ];\n\n\t\t\tif ( currentBlock.previousSibling === nextBlock ) {\n\t\t\t\twriter.appendElement( 'softBreak', nextBlock );\n\t\t\t\twriter.merge( writer.createPositionBefore( currentBlock ) );\n\t\t\t}\n\t\t} );\n\t}\n\n\tprivate _removeCodeBlock( writer: Writer, blocks: Array<Element> ): void {\n\t\tconst codeBlocks = blocks.filter( block => block.is( 'element', 'codeBlock' ) );\n\n\t\tfor ( const block of codeBlocks ) {\n\t\t\tconst range = writer.createRangeOn( block );\n\n\t\t\tfor ( const item of Array.from( range.getItems() ).reverse() ) {\n\t\t\t\tif ( item.is( 'element', 'softBreak' ) && item.parent!.is( 'element', 'codeBlock' ) ) {\n\t\t\t\t\tconst { position } = writer.split( writer.createPositionBefore( item ) );\n\t\t\t\t\tconst elementAfter = position.nodeAfter as Element;\n\n\t\t\t\t\twriter.rename( elementAfter, 'paragraph' );\n\t\t\t\t\twriter.removeAttribute( 'language', elementAfter );\n\t\t\t\t\twriter.remove( item );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\twriter.rename( block, 'paragraph' );\n\t\t\twriter.removeAttribute( 'language', block );\n\t\t}\n\t}\n}\n\n/**\n * Picks the language for the new code block. If any language is passed as an option,\n * it will be returned. Else, if option usePreviousLanguageChoice is true and some\n * code block was already created (lastLanguage is not null) then previously used\n * language will be returned. If not, it will return default language.\n */\nfunction getLanguage(\n\toptions: { usePreviousLanguageChoice?: boolean; language?: string },\n\tlastLanguage: string | null,\n\tdefaultLanguage: string\n): string {\n\tif ( options.language ) {\n\t\treturn options.language;\n\t}\n\n\tif ( options.usePreviousLanguageChoice && lastLanguage ) {\n\t\treturn lastLanguage;\n\t}\n\n\treturn defaultLanguage;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/indentcodeblockcommand\n */\nimport { Command, type Editor } from 'ckeditor5/src/core';\n\nimport {\n\tgetIndentOutdentPositions,\n\tisModelSelectionInCodeBlock\n} from './utils';\n\n/**\n * The code block indentation increase command plugin.\n */\nexport default class IndentCodeBlockCommand extends Command {\n\t/**\n\t * A sequence of characters added to the line when the command is executed.\n\t */\n\tprivate _indentSequence: string;\n\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._indentSequence = editor.config.get( 'codeBlock.indentSequence' )!;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #isEnabled is enabled}, the indentation of the\n\t * code lines in the selection will be increased.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tmodel.change( writer => {\n\t\t\tconst positions = getIndentOutdentPositions( model );\n\n\t\t\t// Indent all positions, for instance assuming the indent sequence is 4x space (\"    \"):\n\t\t\t//\n\t\t\t//\t\t<codeBlock>^foo</codeBlock>        ->       <codeBlock>    foo</codeBlock>\n\t\t\t//\n\t\t\t//\t\t<codeBlock>foo^bar</codeBlock>     ->       <codeBlock>foo    bar</codeBlock>\n\t\t\t//\n\t\t\t// Also, when there is more than one position:\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\t^foobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\t^bazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\t//\n\t\t\t//\t\t->\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\t    foobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\t    bazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\t//\n\t\t\tfor ( const position of positions ) {\n\t\t\t\tconst indentSequenceTextElement = writer.createText( this._indentSequence );\n\n\t\t\t\t// Previously insertion was done by writer.insertText(). It was changed to insertContent() to enable\n\t\t\t\t// integration of code block with track changes. It's the easiest way of integration because insertContent()\n\t\t\t\t// is already integrated with track changes, but if it ever cause any troubles it can be reverted, however\n\t\t\t\t// some additional work will be required in track changes integration of code block.\n\t\t\t\tmodel.insertContent( indentSequenceTextElement, position );\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t */\n\tprivate _checkEnabled(): boolean {\n\t\tif ( !this._indentSequence ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Indent (forward) command is always enabled when there's any code block in the selection\n\t\t// because you can always indent code lines.\n\t\treturn isModelSelectionInCodeBlock( this.editor.model.document.selection );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/outdentcodeblockcommand\n */\n\nimport type { Model, Position, Range, Text } from 'ckeditor5/src/engine';\nimport { Command, type Editor } from 'ckeditor5/src/core';\n\nimport {\n\tgetLeadingWhiteSpaces,\n\tgetIndentOutdentPositions,\n\tisModelSelectionInCodeBlock\n} from './utils';\n\n/**\n * The code block indentation decrease command plugin.\n */\nexport default class OutdentCodeBlockCommand extends Command {\n\t/**\n\t * A sequence of characters removed from the line when the command is executed.\n\t */\n\tprivate readonly _indentSequence: string;\n\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._indentSequence = editor.config.get( 'codeBlock.indentSequence' )!;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.isEnabled = this._checkEnabled();\n\t}\n\n\t/**\n\t * Executes the command. When the command {@link #isEnabled is enabled}, the indentation of the\n\t * code lines in the selection will be decreased.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tmodel.change( () => {\n\t\t\tconst positions = getIndentOutdentPositions( model );\n\n\t\t\t// Outdent all positions, for instance assuming the indent sequence is 4x space (\"    \"):\n\t\t\t//\n\t\t\t//\t\t<codeBlock>^foo</codeBlock>         ->       <codeBlock>foo</codeBlock>\n\t\t\t//\n\t\t\t//\t\t<codeBlock>    ^bar</codeBlock>     ->       <codeBlock>bar</codeBlock>\n\t\t\t//\n\t\t\t// Also, when there is more than one position:\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\t    ^foobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\t    ^bazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\t//\n\t\t\t//\t\t->\n\t\t\t//\n\t\t\t//\t\t<codeBlock>\n\t\t\t//\t\t\tfoobar\n\t\t\t//\t\t\t<softBreak></softBreak>\n\t\t\t//\t\t\tbazqux\n\t\t\t//\t\t</codeBlock>\n\t\t\tfor ( const position of positions ) {\n\t\t\t\tconst range = getLastOutdentableSequenceRange( model, position, this._indentSequence );\n\n\t\t\t\tif ( range ) {\n\t\t\t\t\t// Previously deletion was done by writer.remove(). It was changed to deleteContent() to enable\n\t\t\t\t\t// integration of code block with track changes. It's the easiest way of integration because deleteContent()\n\t\t\t\t\t// is already integrated with track changes, but if it ever cause any troubles it can be reverted, however\n\t\t\t\t\t// some additional work will be required in track changes integration of code block.\n\t\t\t\t\tmodel.deleteContent( model.createSelection( range ) );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Checks whether the command can be enabled in the current context.\n\t *\n\t * @private\n\t * @returns {Boolean} Whether the command should be enabled.\n\t */\n\tprivate _checkEnabled(): boolean {\n\t\tif ( !this._indentSequence ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tconst model = this.editor.model;\n\n\t\tif ( !isModelSelectionInCodeBlock( model.document.selection ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Outdent command can execute only when there is an indent character sequence\n\t\t// in some of the lines.\n\t\treturn getIndentOutdentPositions( model ).some( position => {\n\t\t\treturn getLastOutdentableSequenceRange( model, position, this._indentSequence );\n\t\t} );\n\t}\n}\n\n// For a position coming from `getIndentOutdentPositions()`, it returns the range representing\n// the last occurrence of the indent sequence among the leading whitespaces of the code line the\n// position represents.\n//\n// For instance, assuming the indent sequence is 4x space (\"    \"):\n//\n//\t\t<codeBlock>foo^</codeBlock>                                 ->          null\n//\t\t<codeBlock>foo^<softBreak></softBreak>bar</codeBlock>       ->          null\n//\t\t<codeBlock>  ^foo</codeBlock>                               ->          null\n//\t\t<codeBlock>        ^foo</codeBlock>                         ->          <codeBlock>    [    ]foo</codeBlock>\n//\t\t<codeBlock>    ^foo    bar</codeBlock>                      ->          <codeBlock>[    ]foo    bar</codeBlock>\n//\n// @param {<module:engine/model/model~Model>} model\n// @param {<module:engine/model/position~Position>} position\n// @param {String} sequence\n// @returns {<module:engine/model/range~Range>|null}\nfunction getLastOutdentableSequenceRange( model: Model, position: Position, sequence: string ): Range | null {\n\t// Positions start before each text node (code line). Get the node corresponding to the position.\n\tconst nodeAtPosition = getCodeLineTextNodeAtPosition( position );\n\n\tif ( !nodeAtPosition ) {\n\t\treturn null;\n\t}\n\n\tconst leadingWhiteSpaces = getLeadingWhiteSpaces( nodeAtPosition );\n\tconst lastIndexOfSequence = leadingWhiteSpaces.lastIndexOf( sequence );\n\n\t// For instance, assuming the indent sequence is 4x space (\"    \"):\n\t//\n\t//\t\t<codeBlock>    \t^foo</codeBlock>           ->             null\n\t//\n\tif ( lastIndexOfSequence + sequence.length !== leadingWhiteSpaces.length ) {\n\t\treturn null;\n\t}\n\n\t// For instance, assuming the indent sequence is 4x space (\"    \"):\n\t//\n\t//\t\t<codeBlock>  ^foo</codeBlock>           ->             null\n\t//\n\tif ( lastIndexOfSequence === -1 ) {\n\t\treturn null;\n\t}\n\n\tconst { parent, startOffset } = nodeAtPosition;\n\n\t// Create a range that contains the **last** indent sequence among the leading whitespaces\n\t// of the line.\n\t//\n\t// For instance, assuming the indent sequence is 4x space (\"    \"):\n\t//\n\t//\t\t<codeBlock>        ^foo</codeBlock>      ->     <codeBlock>    [    ]foo</codeBlock>\n\t//\n\treturn model.createRange(\n\t\tmodel.createPositionAt( parent!, startOffset! + lastIndexOfSequence ),\n\t\tmodel.createPositionAt( parent!, startOffset! + lastIndexOfSequence + sequence.length )\n\t);\n}\n\nfunction getCodeLineTextNodeAtPosition( position: Position ): Text | null {\n\t// Positions start before each text node (code line). Get the node corresponding to the position.\n\tlet nodeAtPosition = position.parent.getChild( position.index );\n\n\t// <codeBlock>foo^</codeBlock>\n\t// <codeBlock>foo^<softBreak></softBreak>bar</codeBlock>\n\tif ( !nodeAtPosition || nodeAtPosition.is( 'element', 'softBreak' ) ) {\n\t\tnodeAtPosition = position.nodeBefore;\n\t}\n\n\t// <codeBlock>^</codeBlock>\n\t// <codeBlock>foo^<softBreak></softBreak>bar</codeBlock>\n\tif ( !nodeAtPosition || nodeAtPosition.is( 'element', 'softBreak' ) ) {\n\t\treturn null;\n\t}\n\n\treturn nodeAtPosition as Text;\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/converters\n */\n\nimport type { GetCallback } from 'ckeditor5/src/utils';\nimport type { DowncastInsertEvent, Element, Model, UpcastElementEvent, UpcastTextEvent, View } from 'ckeditor5/src/engine';\nimport type { CodeBlockLanguageDefinition } from './codeblockconfig';\nimport { getPropertyAssociation } from './utils';\n\n/**\n * A model-to-view (both editing and data) converter for the `codeBlock` element.\n *\n * Sample input:\n *\n * ```html\n * <codeBlock language=\"javascript\">foo();<softBreak></softBreak>bar();</codeBlock>\n * ```\n *\n * Sample output (editing):\n *\n * ```html\n * <pre data-language=\"JavaScript\"><code class=\"language-javascript\">foo();<br />bar();</code></pre>\n * ```\n *\n * Sample output (data, see {@link module:code-block/converters~modelToDataViewSoftBreakInsertion}):\n *\n * ```html\n * <pre><code class=\"language-javascript\">foo();\\nbar();</code></pre>\n * ```\n *\n * @param languageDefs The normalized language configuration passed to the feature.\n * @param useLabels When `true`, the `<pre>` element will get a `data-language` attribute with a\n * human–readable label of the language. Used only in the editing.\n * @returns Returns a conversion callback.\n */\nexport function modelToViewCodeBlockInsertion(\n\tmodel: Model,\n\tlanguageDefs: Array<CodeBlockLanguageDefinition>,\n\tuseLabels: boolean = false\n): GetCallback<DowncastInsertEvent> {\n\t// Language CSS classes:\n\t//\n\t//\t\t{\n\t//\t\t\tphp: 'language-php',\n\t//\t\t\tpython: 'language-python',\n\t//\t\t\tjavascript: 'js',\n\t//\t\t\t...\n\t//\t\t}\n\tconst languagesToClasses = getPropertyAssociation( languageDefs, 'language', 'class' );\n\n\t// Language labels:\n\t//\n\t//\t\t{\n\t//\t\t\tphp: 'PHP',\n\t//\t\t\tpython: 'Python',\n\t//\t\t\tjavascript: 'JavaScript',\n\t//\t\t\t...\n\t//\t\t}\n\tconst languagesToLabels = getPropertyAssociation( languageDefs, 'language', 'label' );\n\n\treturn ( evt, data, conversionApi ): void => {\n\t\tconst { writer, mapper, consumable } = conversionApi;\n\n\t\tif ( !consumable.consume( data.item, 'insert' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst codeBlockLanguage = data.item.getAttribute( 'language' ) as string;\n\t\tconst targetViewPosition = mapper.toViewPosition( model.createPositionBefore( data.item ) );\n\t\tconst preAttributes: Record<string, string> = {};\n\n\t\t// Attributes added only in the editing view.\n\t\tif ( useLabels ) {\n\t\t\tpreAttributes[ 'data-language' ] = languagesToLabels[ codeBlockLanguage ];\n\t\t\tpreAttributes.spellcheck = 'false';\n\t\t}\n\n\t\tconst codeAttributes = languagesToClasses[ codeBlockLanguage ] ? {\n\t\t\tclass: languagesToClasses[ codeBlockLanguage ]\n\t\t} : undefined;\n\t\tconst code = writer.createContainerElement( 'code', codeAttributes );\n\n\t\tconst pre = writer.createContainerElement( 'pre', preAttributes, code );\n\n\t\twriter.insert( targetViewPosition, pre );\n\n\t\tmapper.bindElements( data.item as Element, code );\n\t};\n}\n\n/**\n * A model-to-data view converter for the new line (`softBreak`) separator.\n *\n * Sample input:\n *\n * ```html\n * <codeBlock ...>foo();<softBreak></softBreak>bar();</codeBlock>\n * ```\n *\n * Sample output:\n *\n * ```html\n * <pre><code ...>foo();\\nbar();</code></pre>\n * ```\n *\n * @returns Returns a conversion callback.\n */\nexport function modelToDataViewSoftBreakInsertion( model: Model ): GetCallback<DowncastInsertEvent> {\n\treturn ( evt, data, conversionApi ) => {\n\t\tif ( data.item.parent!.name !== 'codeBlock' ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { writer, mapper, consumable } = conversionApi;\n\n\t\tif ( !consumable.consume( data.item, 'insert' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst position = mapper.toViewPosition( model.createPositionBefore( data.item ) );\n\n\t\twriter.insert( position, writer.createText( '\\n' ) );\n\t};\n}\n\n/**\n * A view-to-model converter for `<pre>` with the `<code>` HTML.\n *\n * Sample input:\n *\n * ```html\n * <pre><code class=\"language-javascript\">foo();bar();</code></pre>\n * ```\n *\n * Sample output:\n *\n * ```html\n * <codeBlock language=\"javascript\">foo();bar();</codeBlock>\n * ```\n *\n * @param languageDefs The normalized language configuration passed to the feature.\n * @returns Returns a conversion callback.\n */\nexport function dataViewToModelCodeBlockInsertion(\n\teditingView: View,\n\tlanguageDefs: Array<CodeBlockLanguageDefinition>\n): GetCallback<UpcastElementEvent> {\n\t// Language names associated with CSS classes:\n\t//\n\t//\t\t{\n\t//\t\t\t'language-php': 'php',\n\t//\t\t\t'language-python': 'python',\n\t//\t\t\tjs: 'javascript',\n\t//\t\t\t...\n\t//\t\t}\n\tconst classesToLanguages = getPropertyAssociation( languageDefs, 'class', 'language' );\n\tconst defaultLanguageName = languageDefs[ 0 ].language;\n\n\treturn ( evt, data, conversionApi ) => {\n\t\tconst viewCodeElement = data.viewItem;\n\t\tconst viewPreElement = viewCodeElement.parent;\n\n\t\tif ( !viewPreElement || !viewPreElement.is( 'element', 'pre' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// In case of nested code blocks we don't want to convert to another code block.\n\t\tif ( data.modelCursor.findAncestor( 'codeBlock' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { consumable, writer } = conversionApi;\n\n\t\tif ( !consumable.test( viewCodeElement, { name: true } ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst codeBlock = writer.createElement( 'codeBlock' );\n\t\tconst viewChildClasses = [ ...viewCodeElement.getClassNames() ];\n\n\t\t// As we're to associate each class with a model language, a lack of class (empty class) can be\n\t\t// also associated with a language if the language definition was configured so. Pushing an empty\n\t\t// string to make sure the association will work.\n\t\tif ( !viewChildClasses.length ) {\n\t\t\tviewChildClasses.push( '' );\n\t\t}\n\n\t\t// Figure out if any of the <code> element's class names is a valid programming\n\t\t// language class. If so, use it on the model element (becomes the language of the entire block).\n\t\tfor ( const className of viewChildClasses ) {\n\t\t\tconst language = classesToLanguages[ className ];\n\n\t\t\tif ( language ) {\n\t\t\t\twriter.setAttribute( 'language', language, codeBlock );\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\t// If no language value was set, use the default language from the config.\n\t\tif ( !codeBlock.hasAttribute( 'language' ) ) {\n\t\t\twriter.setAttribute( 'language', defaultLanguageName, codeBlock );\n\t\t}\n\n\t\tconversionApi.convertChildren( viewCodeElement, codeBlock );\n\n\t\t// Let's try to insert code block.\n\t\tif ( !conversionApi.safeInsert( codeBlock, data.modelCursor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconsumable.consume( viewCodeElement, { name: true } );\n\n\t\tconversionApi.updateConversionResult( codeBlock, data );\n\t};\n}\n\n/**\n * A view-to-model converter for new line characters in `<pre>`.\n *\n * Sample input:\n *\n * ```html\n * <pre><code class=\"language-javascript\">foo();\\nbar();</code></pre>\n * ```\n *\n * Sample output:\n *\n * ```html\n * <codeBlock language=\"javascript\">foo();<softBreak></softBreak>bar();</codeBlock>\n * ```\n *\n * @returns {Function} Returns a conversion callback.\n */\nexport function dataViewToModelTextNewlinesInsertion(): GetCallback<UpcastTextEvent> {\n\treturn ( evt, data, { consumable, writer } ) => {\n\t\tlet position = data.modelCursor;\n\n\t\t// When node is already converted then do nothing.\n\t\tif ( !consumable.test( data.viewItem ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// When not inside `codeBlock` then do nothing.\n\t\tif ( !position.findAncestor( 'codeBlock' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconsumable.consume( data.viewItem );\n\n\t\tconst text = data.viewItem.data;\n\t\tconst textLines = text.split( '\\n' ).map( data => writer.createText( data ) );\n\t\tconst lastLine = textLines[ textLines.length - 1 ];\n\n\t\tfor ( const node of textLines ) {\n\t\t\twriter.insert( node, position );\n\t\t\tposition = position.getShiftedBy( node.offsetSize );\n\n\t\t\tif ( node !== lastLine ) {\n\t\t\t\tconst softBreak = writer.createElement( 'softBreak' );\n\n\t\t\t\twriter.insert( softBreak, position );\n\t\t\t\tposition = writer.createPositionAfter( softBreak );\n\t\t\t}\n\t\t}\n\n\t\tdata.modelRange = writer.createRange(\n\t\t\tdata.modelCursor,\n\t\t\tposition\n\t\t);\n\t\tdata.modelCursor = position;\n\t};\n}\n\n/**\n * A view-to-model converter that handles orphan text nodes (white spaces, new lines, etc.)\n * that surround `<code>` inside `<pre>`.\n *\n * Sample input:\n *\n * ```html\n * // White spaces\n * <pre> <code>foo()</code> </pre>\n *\n * // White spaces\n * <pre>      <code>foo()</code>      </pre>\n *\n * // White spaces\n * <pre>\t\t\t<code>foo()</code>\t\t\t</pre>\n *\n * // New lines\n * <pre>\n * \t<code>foo()</code>\n * </pre>\n *\n * // Redundant text\n * <pre>ABC<code>foo()</code>DEF</pre>\n * ```\n *\n * Unified output for each case:\n *\n * ```html\n * <codeBlock language=\"plaintext\">foo()</codeBlock>\n * ```\n *\n * @returns Returns a conversion callback.\n */\nexport function dataViewToModelOrphanNodeConsumer(): GetCallback<UpcastElementEvent> {\n\treturn ( evt, data, { consumable } ) => {\n\t\tconst preElement = data.viewItem;\n\n\t\t// Don't clean up nested pre elements. Their content should stay as it is, they are not upcasted\n\t\t// to code blocks.\n\t\tif ( preElement.findAncestor( 'pre' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst preChildren = Array.from( preElement.getChildren() );\n\t\tconst childCodeElement = preChildren.find( node => node.is( 'element', 'code' ) );\n\n\t\t// <code>-less <pre>. It will not upcast to code block in the model, skipping.\n\t\tif ( !childCodeElement ) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor ( const child of preChildren ) {\n\t\t\tif ( child === childCodeElement || !child.is( '$text' ) ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Consuming the orphan to remove it from the input data.\n\t\t\t// Second argument in `consumable.consume` is discarded for text nodes.\n\t\t\tconsumable.consume( child, { name: true } );\n\t\t}\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblockediting\n */\n\nimport { Plugin, type Editor, type MultiCommand } from 'ckeditor5/src/core';\nimport { ShiftEnter, type ViewDocumentEnterEvent } from 'ckeditor5/src/enter';\n\nimport {\n\tUpcastWriter,\n\ttype Range,\n\ttype Node,\n\ttype ModelGetSelectedContentEvent,\n\ttype ViewDocumentTabEvent,\n\ttype DowncastInsertEvent,\n\ttype UpcastElementEvent,\n\ttype UpcastTextEvent,\n\ttype Element\n} from 'ckeditor5/src/engine';\n\nimport CodeBlockCommand from './codeblockcommand';\nimport IndentCodeBlockCommand from './indentcodeblockcommand';\nimport OutdentCodeBlockCommand from './outdentcodeblockcommand';\nimport {\n\tgetNormalizedAndLocalizedLanguageDefinitions,\n\tgetLeadingWhiteSpaces,\n\trawSnippetTextToViewDocumentFragment\n} from './utils';\nimport {\n\tmodelToViewCodeBlockInsertion,\n\tmodelToDataViewSoftBreakInsertion,\n\tdataViewToModelCodeBlockInsertion,\n\tdataViewToModelTextNewlinesInsertion,\n\tdataViewToModelOrphanNodeConsumer\n} from './converters';\n\nconst DEFAULT_ELEMENT = 'paragraph';\n\n/**\n * The editing part of the code block feature.\n *\n * Introduces the `'codeBlock'` command and the `'codeBlock'` model element.\n */\nexport default class CodeBlockEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'CodeBlockEditing' {\n\t\treturn 'CodeBlockEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ShiftEnter ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'codeBlock', {\n\t\t\tlanguages: [\n\t\t\t\t{ language: 'plaintext', label: 'Plain text' },\n\t\t\t\t{ language: 'c', label: 'C' },\n\t\t\t\t{ language: 'cs', label: 'C#' },\n\t\t\t\t{ language: 'cpp', label: 'C++' },\n\t\t\t\t{ language: 'css', label: 'CSS' },\n\t\t\t\t{ language: 'diff', label: 'Diff' },\n\t\t\t\t{ language: 'html', label: 'HTML' },\n\t\t\t\t{ language: 'java', label: 'Java' },\n\t\t\t\t{ language: 'javascript', label: 'JavaScript' },\n\t\t\t\t{ language: 'php', label: 'PHP' },\n\t\t\t\t{ language: 'python', label: 'Python' },\n\t\t\t\t{ language: 'ruby', label: 'Ruby' },\n\t\t\t\t{ language: 'typescript', label: 'TypeScript' },\n\t\t\t\t{ language: 'xml', label: 'XML' }\n\t\t\t],\n\n\t\t\t// A single tab.\n\t\t\tindentSequence: '\\t'\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst model = editor.model;\n\t\tconst view = editor.editing.view;\n\t\tconst isDocumentListEditingLoaded = editor.plugins.has( 'DocumentListEditing' );\n\n\t\tconst normalizedLanguagesDefs = getNormalizedAndLocalizedLanguageDefinitions( editor );\n\n\t\t// The main command.\n\t\teditor.commands.add( 'codeBlock', new CodeBlockCommand( editor ) );\n\n\t\t// Commands that change the indentation.\n\t\teditor.commands.add( 'indentCodeBlock', new IndentCodeBlockCommand( editor ) );\n\t\teditor.commands.add( 'outdentCodeBlock', new OutdentCodeBlockCommand( editor ) );\n\n\t\tthis.listenTo<ViewDocumentTabEvent>( view.document, 'tab', ( evt, data ) => {\n\t\t\tconst commandName = data.shiftKey ? 'outdentCodeBlock' : 'indentCodeBlock';\n\t\t\tconst command: OutdentCodeBlockCommand | IndentCodeBlockCommand = editor.commands.get( commandName )!;\n\n\t\t\tif ( !command.isEnabled ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\teditor.execute( commandName );\n\n\t\t\tdata.stopPropagation();\n\t\t\tdata.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: 'pre' } );\n\n\t\tschema.register( 'codeBlock', {\n\t\t\tallowWhere: '$block',\n\t\t\tallowChildren: '$text',\n\t\t\tisBlock: true,\n\t\t\tallowAttributes: [ 'language' ]\n\t\t} );\n\n\t\t// Allow all list* attributes on `codeBlock` (integration with DocumentList).\n\t\t// Disallow all attributes on $text inside `codeBlock`.\n\t\tschema.addAttributeCheck( ( context, attributeName ) => {\n\t\t\tconst isDocumentListAttributeOnCodeBlock = context.endsWith( 'codeBlock' ) &&\n\t\t\t\tattributeName.startsWith( 'list' ) &&\n\t\t\t\tattributeName !== 'list';\n\n\t\t\tif ( isDocumentListEditingLoaded && isDocumentListAttributeOnCodeBlock ) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tif ( context.endsWith( 'codeBlock $text' ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\t// Disallow object elements inside `codeBlock`. See #9567.\n\t\teditor.model.schema.addChildCheck( ( context, childDefinition ) => {\n\t\t\tif ( context.endsWith( 'codeBlock' ) && childDefinition.isObject ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} );\n\n\t\t// Conversion.\n\t\teditor.editing.downcastDispatcher.on<DowncastInsertEvent>(\n\t\t\t'insert:codeBlock',\n\t\t\tmodelToViewCodeBlockInsertion( model, normalizedLanguagesDefs, true )\n\t\t);\n\t\teditor.data.downcastDispatcher.on<DowncastInsertEvent>(\n\t\t\t'insert:codeBlock',\n\t\t\tmodelToViewCodeBlockInsertion( model, normalizedLanguagesDefs )\n\t\t);\n\t\teditor.data.downcastDispatcher.on<DowncastInsertEvent>(\n\t\t\t'insert:softBreak',\n\t\t\tmodelToDataViewSoftBreakInsertion( model ),\n\t\t\t{ priority: 'high' }\n\t\t);\n\t\teditor.data.upcastDispatcher.on<UpcastElementEvent>(\n\t\t\t'element:code',\n\t\t\tdataViewToModelCodeBlockInsertion( view, normalizedLanguagesDefs )\n\t\t);\n\t\teditor.data.upcastDispatcher.on<UpcastTextEvent>( 'text', dataViewToModelTextNewlinesInsertion() );\n\t\teditor.data.upcastDispatcher.on<UpcastElementEvent>( 'element:pre', dataViewToModelOrphanNodeConsumer(), { priority: 'high' } );\n\n\t\t// Intercept the clipboard input (paste) when the selection is anchored in the code block and force the clipboard\n\t\t// data to be pasted as a single plain text. Otherwise, the code lines will split the code block and\n\t\t// \"spill out\" as separate paragraphs.\n\t\tthis.listenTo( editor.editing.view.document, 'clipboardInput', ( evt, data ) => {\n\t\t\tlet insertionRange = model.createRange( model.document.selection.anchor! );\n\n\t\t\t// Use target ranges in case this is a drop.\n\t\t\tif ( data.targetRanges ) {\n\t\t\t\tinsertionRange = editor.editing.mapper.toModelRange( data.targetRanges[ 0 ] );\n\t\t\t}\n\n\t\t\tif ( !insertionRange.start.parent.is( 'element', 'codeBlock' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst text = data.dataTransfer.getData( 'text/plain' );\n\t\t\tconst writer = new UpcastWriter( editor.editing.view.document );\n\n\t\t\t// Pass the view fragment to the default clipboardInput handler.\n\t\t\tdata.content = rawSnippetTextToViewDocumentFragment( writer, text );\n\t\t} );\n\n\t\t// Make sure multi–line selection is always wrapped in a code block when `getSelectedContent()`\n\t\t// is used (e.g. clipboard copy). Otherwise, only the raw text will be copied to the clipboard and,\n\t\t// upon next paste, this bare text will not be inserted as a code block, which is not the best UX.\n\t\t// Similarly, when the selection in a single line, the selected content should be an inline code\n\t\t// so it can be pasted later on and retain it's preformatted nature.\n\t\tthis.listenTo<ModelGetSelectedContentEvent>( model, 'getSelectedContent', ( evt, [ selection ] ) => {\n\t\t\tconst anchor = selection.anchor!;\n\n\t\t\tif ( selection.isCollapsed || !anchor.parent.is( 'element', 'codeBlock' ) || !anchor.hasSameParentAs( selection.focus! ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tmodel.change( writer => {\n\t\t\t\tconst docFragment = evt.return!;\n\n\t\t\t\t// fo[o<softBreak></softBreak>b]ar  ->   <codeBlock language=\"...\">[o<softBreak></softBreak>b]<codeBlock>\n\t\t\t\tif (\n\t\t\t\t\tanchor.parent.is( 'element' ) &&\n\t\t\t\t\t( docFragment.childCount > 1 || selection.containsEntireContent( anchor.parent ) )\n\t\t\t\t) {\n\t\t\t\t\tconst codeBlock = writer.createElement( 'codeBlock', anchor.parent.getAttributes() );\n\t\t\t\t\twriter.append( docFragment, codeBlock );\n\n\t\t\t\t\tconst newDocumentFragment = writer.createDocumentFragment();\n\t\t\t\t\twriter.append( codeBlock, newDocumentFragment );\n\n\t\t\t\t\tevt.return = newDocumentFragment;\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\t// \"f[oo]\"                          ->   <$text code=\"true\">oo</text>\n\t\t\t\tconst textNode = docFragment.getChild( 0 )!;\n\n\t\t\t\tif ( schema.checkAttribute( textNode, 'code' ) ) {\n\t\t\t\t\twriter.setAttribute( 'code', true, textNode );\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst editor = this.editor;\n\t\tconst commands = editor.commands;\n\t\tconst indent = commands.get( 'indent' );\n\t\tconst outdent = commands.get( 'outdent' );\n\n\t\tif ( indent ) {\n\t\t\t// Priority is highest due to integration with `IndentList` command of `List` plugin.\n\t\t\t// If selection is in a code block we give priority to it. This way list item cannot be indented\n\t\t\t// but if we would give priority to indenting list item then user would have to indent list item\n\t\t\t// as much as possible and only then he could indent code block.\n\t\t\t( indent as MultiCommand ).registerChildCommand( commands.get( 'indentCodeBlock' )!, { priority: 'highest' } );\n\t\t}\n\n\t\tif ( outdent ) {\n\t\t\t( outdent as MultiCommand ).registerChildCommand( commands.get( 'outdentCodeBlock' )! );\n\t\t}\n\n\t\t// Customize the response to the <kbd>Enter</kbd> and <kbd>Shift</kbd>+<kbd>Enter</kbd>\n\t\t// key press when the selection is in the code block. Upon enter key press we can either\n\t\t// leave the block if it's \"two or three enters\" in a row or create a new code block line, preserving\n\t\t// previous line's indentation.\n\t\tthis.listenTo<ViewDocumentEnterEvent>( editor.editing.view.document, 'enter', ( evt, data ) => {\n\t\t\tconst positionParent = editor.model.document.selection.getLastPosition()!.parent;\n\n\t\t\tif ( !positionParent.is( 'element', 'codeBlock' ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( !leaveBlockStartOnEnter( editor, data.isSoft ) && !leaveBlockEndOnEnter( editor, data.isSoft ) ) {\n\t\t\t\tbreakLineOnEnter( editor );\n\t\t\t}\n\n\t\t\tdata.preventDefault();\n\t\t\tevt.stop();\n\t\t}, { context: 'pre' } );\n\t}\n}\n\n/**\n * Normally, when the Enter (or Shift+Enter) key is pressed, a soft line break is to be added to the\n * code block. Let's try to follow the indentation of the previous line when possible, for instance:\n *\n * ```html\n * // Before pressing enter (or shift enter)\n * <codeBlock>\n * \"    foo()\"[]                   // Indent of 4 spaces.\n * </codeBlock>\n *\n * // After pressing:\n * <codeBlock>\n * \"    foo()\"                 // Indent of 4 spaces.\n * <softBreak></softBreak>     // A new soft break created by pressing enter.\n * \"    \"[]                    // Retain the indent of 4 spaces.\n * </codeBlock>\n * ```\n */\nfunction breakLineOnEnter( editor: Editor ): void {\n\tconst model = editor.model;\n\tconst modelDoc = model.document;\n\tconst lastSelectionPosition = modelDoc.selection.getLastPosition()!;\n\tconst node = lastSelectionPosition.nodeBefore || lastSelectionPosition.textNode;\n\tlet leadingWhiteSpaces: string | undefined;\n\n\t// Figure out the indentation (white space chars) at the beginning of the line.\n\tif ( node && node.is( '$text' ) ) {\n\t\tleadingWhiteSpaces = getLeadingWhiteSpaces( node );\n\t}\n\n\t// Keeping everything in a change block for a single undo step.\n\teditor.model.change( writer => {\n\t\teditor.execute( 'shiftEnter' );\n\n\t\t// If the line before being broken in two had some indentation, let's retain it\n\t\t// in the new line.\n\t\tif ( leadingWhiteSpaces ) {\n\t\t\twriter.insertText( leadingWhiteSpaces, modelDoc.selection.anchor! );\n\t\t}\n\t} );\n}\n\n/**\n * Leave the code block when Enter (but NOT Shift+Enter) has been pressed twice at the beginning\n * of the code block:\n *\n * ```html\n * // Before:\n * <codeBlock>[]<softBreak></softBreak>foo</codeBlock>\n *\n * // After pressing:\n * <paragraph>[]</paragraph><codeBlock>foo</codeBlock>\n * ```\n *\n * @param isSoftEnter When `true`, enter was pressed along with <kbd>Shift</kbd>.\n * @returns `true` when selection left the block. `false` if stayed.\n */\nfunction leaveBlockStartOnEnter( editor: Editor, isSoftEnter: boolean ): boolean {\n\tconst model = editor.model;\n\tconst modelDoc = model.document;\n\tconst view = editor.editing.view;\n\tconst lastSelectionPosition = modelDoc.selection.getLastPosition()!;\n\tconst nodeAfter = lastSelectionPosition.nodeAfter;\n\n\tif ( isSoftEnter || !modelDoc.selection.isCollapsed || !lastSelectionPosition.isAtStart ) {\n\t\treturn false;\n\t}\n\n\tif ( !isSoftBreakNode( nodeAfter ) ) {\n\t\treturn false;\n\t}\n\n\t// We're doing everything in a single change block to have a single undo step.\n\teditor.model.change( writer => {\n\t\t// \"Clone\" the <codeBlock> in the standard way.\n\t\teditor.execute( 'enter' );\n\n\t\t// The cloned block exists now before the original code block.\n\t\tconst newBlock = modelDoc.selection.anchor!.parent.previousSibling! as Element;\n\n\t\t// Make the cloned <codeBlock> a regular <paragraph> (with clean attributes, so no language).\n\t\twriter.rename( newBlock, DEFAULT_ELEMENT );\n\t\twriter.setSelection( newBlock, 'in' );\n\t\teditor.model.schema.removeDisallowedAttributes( [ newBlock ], writer );\n\n\t\t// Remove the <softBreak> that originally followed the selection position.\n\t\twriter.remove( nodeAfter! );\n\t} );\n\n\t// Eye candy.\n\tview.scrollToTheSelection();\n\n\treturn true;\n}\n\n/**\n * Leave the code block when Enter (but NOT Shift+Enter) has been pressed twice at the end\n * of the code block:\n *\n * ```html\n * // Before:\n * <codeBlock>foo[]</codeBlock>\n *\n * // After first press:\n * <codeBlock>foo<softBreak></softBreak>[]</codeBlock>\n *\n * // After second press:\n * <codeBlock>foo</codeBlock><paragraph>[]</paragraph>\n * ```\n *\n * @param isSoftEnter When `true`, enter was pressed along with <kbd>Shift</kbd>.\n * @returns `true` when selection left the block. `false` if stayed.\n */\nfunction leaveBlockEndOnEnter( editor: Editor, isSoftEnter: boolean ): boolean {\n\tconst model = editor.model;\n\tconst modelDoc = model.document;\n\tconst view = editor.editing.view;\n\tconst lastSelectionPosition = modelDoc.selection.getLastPosition()!;\n\tconst nodeBefore = lastSelectionPosition.nodeBefore;\n\n\tlet emptyLineRangeToRemoveOnEnter: Range;\n\n\tif ( isSoftEnter || !modelDoc.selection.isCollapsed || !lastSelectionPosition.isAtEnd || !nodeBefore || !nodeBefore.previousSibling ) {\n\t\treturn false;\n\t}\n\n\t// When the position is directly preceded by two soft breaks\n\t//\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak>[]</codeBlock>\n\t//\n\t// it creates the following range that will be cleaned up before leaving:\n\t//\n\t//\t\t<codeBlock>foo[<softBreak></softBreak><softBreak></softBreak>]</codeBlock>\n\t//\n\tif ( isSoftBreakNode( nodeBefore ) && isSoftBreakNode( nodeBefore.previousSibling ) ) {\n\t\temptyLineRangeToRemoveOnEnter = model.createRange(\n\t\t\tmodel.createPositionBefore( nodeBefore.previousSibling ), model.createPositionAfter( nodeBefore )\n\t\t);\n\t}\n\n\t// When there's some text before the position that is\n\t// preceded by two soft breaks and made purely of white–space characters\n\t//\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak>    []</codeBlock>\n\t//\n\t// it creates the following range to clean up before leaving:\n\t//\n\t//\t\t<codeBlock>foo[<softBreak></softBreak><softBreak></softBreak>    ]</codeBlock>\n\t//\n\telse if (\n\t\tisEmptyishTextNode( nodeBefore ) &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling ) &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling.previousSibling )\n\t) {\n\t\temptyLineRangeToRemoveOnEnter = model.createRange(\n\t\t\tmodel.createPositionBefore( nodeBefore.previousSibling.previousSibling! ), model.createPositionAfter( nodeBefore )\n\t\t);\n\t}\n\n\t// When there's some text before the position that is made purely of white–space characters\n\t// and is preceded by some other text made purely of white–space characters\n\t//\n\t//\t\t<codeBlock>foo<softBreak></softBreak>    <softBreak></softBreak>    []</codeBlock>\n\t//\n\t// it creates the following range to clean up before leaving:\n\t//\n\t//\t\t<codeBlock>foo[<softBreak></softBreak>    <softBreak></softBreak>    ]</codeBlock>\n\t//\n\telse if (\n\t\tisEmptyishTextNode( nodeBefore ) &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling ) &&\n\t\tisEmptyishTextNode( nodeBefore.previousSibling.previousSibling ) &&\n\t\tnodeBefore.previousSibling.previousSibling &&\n\t\tisSoftBreakNode( nodeBefore.previousSibling.previousSibling.previousSibling )\n\t) {\n\t\temptyLineRangeToRemoveOnEnter = model.createRange(\n\t\t\tmodel.createPositionBefore( nodeBefore.previousSibling.previousSibling.previousSibling! ),\n\t\t\tmodel.createPositionAfter( nodeBefore )\n\t\t);\n\t}\n\n\t// Not leaving the block in the following cases:\n\t//\n\t//\t\t<codeBlock>    []</codeBlock>\n\t//\t\t<codeBlock>  a []</codeBlock>\n\t//\t\t<codeBlock>foo<softBreak></softBreak>[]</codeBlock>\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak>bar[]</codeBlock>\n\t//\t\t<codeBlock>foo<softBreak></softBreak><softBreak></softBreak> a []</codeBlock>\n\t//\n\telse {\n\t\treturn false;\n\t}\n\n\t// We're doing everything in a single change block to have a single undo step.\n\teditor.model.change( writer => {\n\t\t// Remove the last <softBreak>s and all white space characters that followed them.\n\t\twriter.remove( emptyLineRangeToRemoveOnEnter );\n\n\t\t// \"Clone\" the <codeBlock> in the standard way.\n\t\teditor.execute( 'enter' );\n\n\t\tconst newBlock = modelDoc.selection.anchor!.parent as Element;\n\n\t\t// Make the cloned <codeBlock> a regular <paragraph> (with clean attributes, so no language).\n\t\twriter.rename( newBlock, DEFAULT_ELEMENT );\n\t\teditor.model.schema.removeDisallowedAttributes( [ newBlock ], writer );\n\t} );\n\n\t// Eye candy.\n\tview.scrollToTheSelection();\n\n\treturn true;\n}\n\nfunction isEmptyishTextNode( node: Node | null ) {\n\treturn node && node.is( '$text' ) && !node.data.match( /\\S/ );\n}\n\nfunction isSoftBreakNode( node: Node | null ) {\n\treturn node && node.is( 'element', 'softBreak' );\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./codeblock.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblockui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Collection } from 'ckeditor5/src/utils';\nimport { Model, SplitButtonView, createDropdown, addListToDropdown, type ListDropdownItemDefinition } from 'ckeditor5/src/ui';\n\nimport { getNormalizedAndLocalizedLanguageDefinitions } from './utils';\n\nimport type { CodeBlockLanguageDefinition } from './codeblockconfig';\nimport type CodeBlockCommand from './codeblockcommand';\n\nimport codeBlockIcon from '../theme/icons/codeblock.svg';\nimport '../theme/codeblock.css';\n\n/**\n * The code block UI plugin.\n *\n * Introduces the `'codeBlock'` dropdown.\n */\nexport default class CodeBlockUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'CodeBlockUI' {\n\t\treturn 'CodeBlockUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst componentFactory = editor.ui.componentFactory;\n\t\tconst normalizedLanguageDefs = getNormalizedAndLocalizedLanguageDefinitions( editor );\n\n\t\tcomponentFactory.add( 'codeBlock', locale => {\n\t\t\tconst command: CodeBlockCommand = editor.commands.get( 'codeBlock' )!;\n\t\t\tconst dropdownView = createDropdown( locale, SplitButtonView );\n\t\t\tconst splitButtonView = dropdownView.buttonView;\n\n\t\t\tsplitButtonView.set( {\n\t\t\t\tlabel: t( 'Insert code block' ),\n\t\t\t\ttooltip: true,\n\t\t\t\ticon: codeBlockIcon,\n\t\t\t\tisToggleable: true\n\t\t\t} );\n\n\t\t\tsplitButtonView.bind( 'isOn' ).to( command, 'value', value => !!value );\n\n\t\t\tsplitButtonView.on( 'execute', () => {\n\t\t\t\teditor.execute( 'codeBlock', {\n\t\t\t\t\tusePreviousLanguageChoice: true\n\t\t\t\t} );\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\tdropdownView.on( 'execute', evt => {\n\t\t\t\teditor.execute( 'codeBlock', {\n\t\t\t\t\tlanguage: ( evt.source as any )._codeBlockLanguage,\n\t\t\t\t\tforceValue: true\n\t\t\t\t} );\n\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\tdropdownView.class = 'ck-code-block-dropdown';\n\t\t\tdropdownView.bind( 'isEnabled' ).to( command );\n\n\t\t\taddListToDropdown( dropdownView, () => this._getLanguageListItemDefinitions( normalizedLanguageDefs ) );\n\n\t\t\treturn dropdownView;\n\t\t} );\n\t}\n\n\t/**\n\t * A helper returning a collection of the `codeBlock` dropdown items representing languages\n\t * available for the user to choose from.\n\t */\n\tprivate _getLanguageListItemDefinitions(\n\t\tnormalizedLanguageDefs: Array<CodeBlockLanguageDefinition>\n\t): Collection<ListDropdownItemDefinition> {\n\t\tconst editor = this.editor;\n\t\tconst command: CodeBlockCommand = editor.commands.get( 'codeBlock' )!;\n\t\tconst itemDefinitions = new Collection<ListDropdownItemDefinition>();\n\n\t\tfor ( const languageDef of normalizedLanguageDefs ) {\n\t\t\tconst definition: ListDropdownItemDefinition = {\n\t\t\t\ttype: 'button',\n\t\t\t\tmodel: new Model( {\n\t\t\t\t\t_codeBlockLanguage: languageDef.language,\n\t\t\t\t\tlabel: languageDef.label,\n\t\t\t\t\twithText: true\n\t\t\t\t} )\n\t\t\t};\n\n\t\t\tdefinition.model.bind( 'isOn' ).to( command, 'value', value => {\n\t\t\t\treturn value === definition.model._codeBlockLanguage;\n\t\t\t} );\n\n\t\t\titemDefinitions.add( definition );\n\t\t}\n\n\t\treturn itemDefinitions;\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M12.87 12.61a.75.75 0 0 1-.089.976l-.085.07-3.154 2.254 3.412 2.414a.75.75 0 0 1 .237.95l-.057.095a.75.75 0 0 1-.95.237l-.096-.058-4.272-3.022-.003-1.223 4.01-2.867a.75.75 0 0 1 1.047.174zm2.795-.231.095.057 4.011 2.867-.003 1.223-4.272 3.022-.095.058a.75.75 0 0 1-.88-.151l-.07-.086-.058-.095a.75.75 0 0 1 .15-.88l.087-.07 3.412-2.414-3.154-2.253-.085-.071a.75.75 0 0 1 .862-1.207zM16 0a2 2 0 0 1 2 2v9.354l-.663-.492-.837-.001V2a.5.5 0 0 0-.5-.5H2a.5.5 0 0 0-.5.5v15a.5.5 0 0 0 .5.5h3.118L7.156 19H2a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h14zM5.009 15l.003 1H3v-1h2.009zm2.188-2-1.471 1H5v-1h2.197zM10 11v.095L8.668 12H7v-1h3zm4-2v1H7V9h7zm0-2v1H7V7h7zm-4-2v1H5V5h5zM6 3v1H3V3h3z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mentioncommand\n */\n\nimport { Command } from 'ckeditor5/src/core';\nimport type { Range } from 'ckeditor5/src/engine';\nimport { CKEditorError, toMap } from 'ckeditor5/src/utils';\n\nimport { _addMentionAttributes } from './mentionediting';\nimport type { MentionAttribute } from './mention';\n\n/**\n * The mention command.\n *\n * The command is registered by {@link module:mention/mentionediting~MentionEditing} as `'mention'`.\n *\n * To insert a mention into a range, execute the command and specify a mention object with a range to replace:\n *\n * ```ts\n * const focus = editor.model.document.selection.focus;\n *\n * // It will replace one character before the selection focus with the '#1234' text\n * // with the mention attribute filled with passed attributes.\n * editor.execute( 'mention', {\n * \tmarker: '#',\n * \tmention: {\n * \t\tid: '#1234',\n * \t\tname: 'Foo',\n * \t\ttitle: 'Big Foo'\n * \t},\n * \trange: editor.model.createRange( focus.getShiftedBy( -1 ), focus )\n * } );\n *\n * // It will replace one character before the selection focus with the 'The \"Big Foo\"' text\n * // with the mention attribute filled with passed attributes.\n * editor.execute( 'mention', {\n * \tmarker: '#',\n * \tmention: {\n * \t\tid: '#1234',\n * \t\tname: 'Foo',\n * \t\ttitle: 'Big Foo'\n * \t},\n * \ttext: 'The \"Big Foo\"',\n * \trange: editor.model.createRange( focus.getShiftedBy( -1 ), focus )\n * } );\n *\t```\n */\nexport default class MentionCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst doc = model.document;\n\n\t\tthis.isEnabled = model.schema.checkAttributeInSelection( doc.selection, 'mention' );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @param options Options for the executed command.\n\t * @param options.mention The mention object to insert. When a string is passed, it will be used to create a plain\n\t * object with the name attribute that equals the passed string.\n\t * @param options.marker The marker character (e.g. `'@'`).\n\t * @param options.text The text of the inserted mention. Defaults to the full mention string composed from `marker` and\n\t * `mention` string or `mention.id` if an object is passed.\n\t * @param options.range The range to replace.\n\t * Note that the replaced range might be shorter than the inserted text with the mention attribute.\n\t * @fires execute\n\t */\n\tpublic override execute( options: { mention: string | MentionAttribute; marker: string; text?: string; range?: Range } ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\t\tconst selection = document.selection;\n\n\t\tconst mentionData = typeof options.mention == 'string' ? { id: options.mention } : options.mention;\n\t\tconst mentionID = mentionData.id;\n\n\t\tconst range = options.range || selection.getFirstRange();\n\n\t\tconst mentionText = options.text || mentionID;\n\n\t\tconst mention = _addMentionAttributes( { _text: mentionText, id: mentionID }, mentionData );\n\n\t\tif ( options.marker.length != 1 ) {\n\t\t\t/**\n\t\t\t * The marker must be a single character.\n\t\t\t *\n\t\t\t * Correct markers: `'@'`, `'#'`.\n\t\t\t *\n\t\t\t * Incorrect markers: `'@@'`, `'[@'`.\n\t\t\t *\n\t\t\t * See {@link module:mention/mentionconfig~MentionConfig}.\n\t\t\t *\n\t\t\t * @error mentioncommand-incorrect-marker\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'mentioncommand-incorrect-marker',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tif ( mentionID.charAt( 0 ) != options.marker ) {\n\t\t\t/**\n\t\t\t * The feed item ID must start with the marker character.\n\t\t\t *\n\t\t\t * Correct mention feed setting:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * mentions: [\n\t\t\t * \t{\n\t\t\t * \t\tmarker: '@',\n\t\t\t * \t\tfeed: [ '@Ann', '@Barney', ... ]\n\t\t\t * \t}\n\t\t\t * ]\n\t\t\t * ```\n\t\t\t *\n\t\t\t * Incorrect mention feed setting:\n\t\t\t *\n\t\t\t * ```ts\n\t\t\t * mentions: [\n\t\t\t * \t{\n\t\t\t * \t\tmarker: '@',\n\t\t\t * \t\tfeed: [ 'Ann', 'Barney', ... ]\n\t\t\t * \t}\n\t\t\t * ]\n\t\t\t * ```\n\t\t\t *\n\t\t\t * See {@link module:mention/mentionconfig~MentionConfig}.\n\t\t\t *\n\t\t\t * @error mentioncommand-incorrect-id\n\t\t\t */\n\t\t\tthrow new CKEditorError(\n\t\t\t\t'mentioncommand-incorrect-id',\n\t\t\t\tthis\n\t\t\t);\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\tconst currentAttributes = toMap( selection.getAttributes() );\n\t\t\tconst attributesWithMention = new Map( currentAttributes.entries() );\n\n\t\t\tattributesWithMention.set( 'mention', mention );\n\n\t\t\t// Replace a range with the text with a mention.\n\t\t\tmodel.insertContent( writer.createText( mentionText, attributesWithMention ), range );\n\t\t\tmodel.insertContent( writer.createText( ' ', currentAttributes ), range!.start.getShiftedBy( mentionText.length ) );\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mentionediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport type {\n\tElement,\n\tText,\n\tWriter,\n\tDocument,\n\tAttributeElement,\n\tDowncastConversionApi,\n\tDowncastDispatcher,\n\tPosition,\n\tSchema,\n\tDowncastAttributeEvent,\n\tItem\n} from 'ckeditor5/src/engine';\nimport { uid } from 'ckeditor5/src/utils';\n\nimport MentionCommand from './mentioncommand';\nimport type { MentionAttribute } from './mention';\n\n/**\n * The mention editing feature.\n *\n * It introduces the {@link module:mention/mentioncommand~MentionCommand command} and the `mention`\n * attribute in the {@link module:engine/model/model~Model model} which renders in the {@link module:engine/view/view view}\n * as a `<span class=\"mention\" data-mention=\"@mention\">`.\n */\nexport default class MentionEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'MentionEditing' {\n\t\treturn 'MentionEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\t\tconst doc = model.document;\n\n\t\t// Allow the mention attribute on all text nodes.\n\t\tmodel.schema.extend( '$text', { allowAttributes: 'mention' } );\n\n\t\t// Upcast conversion.\n\t\teditor.conversion.for( 'upcast' ).elementToAttribute( {\n\t\t\tview: {\n\t\t\t\tname: 'span',\n\t\t\t\tkey: 'data-mention',\n\t\t\t\tclasses: 'mention'\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'mention',\n\t\t\t\tvalue: ( viewElement: Element ) => _toMentionAttribute( viewElement )\n\t\t\t}\n\t\t} );\n\n\t\t// Downcast conversion.\n\t\teditor.conversion.for( 'downcast' ).attributeToElement( {\n\t\t\tmodel: 'mention',\n\t\t\tview: createViewMentionElement\n\t\t} );\n\t\teditor.conversion.for( 'downcast' ).add( preventPartialMentionDowncast );\n\n\t\tdoc.registerPostFixer( writer => removePartialMentionPostFixer( writer, doc, model.schema ) );\n\t\tdoc.registerPostFixer( writer => extendAttributeOnMentionPostFixer( writer, doc ) );\n\t\tdoc.registerPostFixer( writer => selectionMentionAttributePostFixer( writer, doc ) );\n\n\t\teditor.commands.add( 'mention', new MentionCommand( editor ) );\n\t}\n}\n\n/**\n * @internal\n */\nexport function _addMentionAttributes(\n\tbaseMentionData: MentionAttribute,\n\tdata?: MentionAttribute\n): MentionAttribute {\n\treturn Object.assign( { uid: uid() }, baseMentionData, data || {} );\n}\n\n/**\n * Creates a mention attribute value from the provided view element and optional data.\n *\n * This function is exposed as\n * {@link module:mention/mention~Mention#toMentionAttribute `editor.plugins.get( 'Mention' ).toMentionAttribute()`}.\n *\n * @internal\n */\nexport function _toMentionAttribute(\n\tviewElementOrMention: Element,\n\tdata?: MentionAttribute\n): MentionAttribute | undefined {\n\tconst dataMention = viewElementOrMention.getAttribute( 'data-mention' ) as string;\n\n\tconst textNode = viewElementOrMention.getChild( 0 ) as Text;\n\n\t// Do not convert empty mentions.\n\tif ( !textNode ) {\n\t\treturn;\n\t}\n\n\tconst baseMentionData = {\n\t\tid: dataMention,\n\t\t_text: textNode.data\n\t};\n\n\treturn _addMentionAttributes( baseMentionData, data );\n}\n\n/**\n * A converter that blocks partial mention from being converted.\n *\n * This converter is registered with 'highest' priority in order to consume mention attribute before it is converted by\n * any other converters. This converter only consumes partial mention - those whose `_text` attribute is not equal to text with mention\n * attribute. This may happen when copying part of mention text.\n */\nfunction preventPartialMentionDowncast( dispatcher: DowncastDispatcher ) {\n\tdispatcher.on<DowncastAttributeEvent>( 'attribute:mention', ( evt, data, conversionApi ) => {\n\t\tconst mention = data.attributeNewValue as MentionAttribute;\n\n\t\tif ( !data.item.is( '$textProxy' ) || !mention ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst start = data.range.start;\n\t\tconst textNode = start.textNode || start.nodeAfter as Text;\n\n\t\tif ( textNode!.data != mention._text ) {\n\t\t\t// Consume item to prevent partial mention conversion.\n\t\t\tconversionApi.consumable.consume( data.item, evt.name );\n\t\t}\n\t}, { priority: 'highest' } );\n}\n\n/**\n * Creates a mention element from the mention data.\n */\nfunction createViewMentionElement( mention: MentionAttribute, { writer }: DowncastConversionApi ): AttributeElement | undefined {\n\tif ( !mention ) {\n\t\treturn;\n\t}\n\n\tconst attributes = {\n\t\tclass: 'mention',\n\t\t'data-mention': mention.id\n\t};\n\n\tconst options = {\n\t\tid: mention.uid,\n\t\tpriority: 20\n\t};\n\n\treturn writer.createAttributeElement( 'span', attributes, options );\n}\n\n/**\n * Model post-fixer that disallows typing with selection when the selection is placed after the text node with the mention attribute or\n * before a text node with mention attribute.\n */\nfunction selectionMentionAttributePostFixer( writer: Writer, doc: Document ): boolean {\n\tconst selection = doc.selection;\n\tconst focus = selection.focus;\n\n\tif ( selection.isCollapsed && selection.hasAttribute( 'mention' ) && shouldNotTypeWithMentionAt( focus! ) ) {\n\t\twriter.removeSelectionAttribute( 'mention' );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n\n/**\n * Helper function to detect if mention attribute should be removed from selection.\n * This check makes only sense if the selection has mention attribute.\n *\n * The mention attribute should be removed from a selection when selection focus is placed:\n * a) after a text node\n * b) the position is at parents start - the selection will set attributes from node after.\n */\nfunction shouldNotTypeWithMentionAt( position: Position ): boolean {\n\tconst isAtStart = position.isAtStart;\n\tconst isAfterAMention = position.nodeBefore && position.nodeBefore.is( '$text' );\n\n\treturn isAfterAMention || isAtStart;\n}\n\n/**\n * Model post-fixer that removes the mention attribute from the modified text node.\n */\nfunction removePartialMentionPostFixer( writer: Writer, doc: Document, schema: Schema ): boolean {\n\tconst changes = doc.differ.getChanges();\n\n\tlet wasChanged = false;\n\n\tfor ( const change of changes ) {\n\t\tif ( change.type == 'attribute' ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t// Checks the text node on the current position.\n\t\tconst position = change.position;\n\n\t\tif ( change.name == '$text' ) {\n\t\t\tconst nodeAfterInsertedTextNode = position.textNode && position.textNode.nextSibling;\n\n\t\t\t// Checks the text node where the change occurred.\n\t\t\twasChanged = checkAndFix( position.textNode, writer ) || wasChanged;\n\n\t\t\t// Occurs on paste inside a text node with mention.\n\t\t\twasChanged = checkAndFix( nodeAfterInsertedTextNode, writer ) || wasChanged;\n\t\t\twasChanged = checkAndFix( position.nodeBefore, writer ) || wasChanged;\n\t\t\twasChanged = checkAndFix( position.nodeAfter, writer ) || wasChanged;\n\t\t}\n\n\t\t// Checks text nodes in inserted elements (might occur when splitting a paragraph or pasting content inside text with mention).\n\t\tif ( change.name != '$text' && change.type == 'insert' ) {\n\t\t\tconst insertedNode = position.nodeAfter as Element;\n\n\t\t\tfor ( const item of writer.createRangeIn( insertedNode! ).getItems() ) {\n\t\t\t\twasChanged = checkAndFix( item, writer ) || wasChanged;\n\t\t\t}\n\t\t}\n\n\t\t// Inserted inline elements might break mention.\n\t\tif ( change.type == 'insert' && schema.isInline( change.name ) ) {\n\t\t\tconst nodeAfterInserted = position.nodeAfter && position.nodeAfter.nextSibling;\n\n\t\t\twasChanged = checkAndFix( position.nodeBefore, writer ) || wasChanged;\n\t\t\twasChanged = checkAndFix( nodeAfterInserted, writer ) || wasChanged;\n\t\t}\n\t}\n\n\treturn wasChanged;\n}\n\n/**\n * This post-fixer will extend the attribute applied on the part of the mention so the whole text node of the mention will have\n * the added attribute.\n */\nfunction extendAttributeOnMentionPostFixer( writer: Writer, doc: Document ): boolean {\n\tconst changes = doc.differ.getChanges();\n\n\tlet wasChanged = false;\n\n\tfor ( const change of changes ) {\n\t\tif ( change.type === 'attribute' && change.attributeKey != 'mention' ) {\n\t\t\t// Checks the node on the left side of the range...\n\t\t\tconst nodeBefore = change.range.start.nodeBefore;\n\t\t\t// ... and on the right side of the range.\n\t\t\tconst nodeAfter = change.range.end.nodeAfter;\n\n\t\t\tfor ( const node of [ nodeBefore, nodeAfter ] ) {\n\t\t\t\tif ( isBrokenMentionNode( node ) && node!.getAttribute( change.attributeKey ) != change.attributeNewValue ) {\n\t\t\t\t\twriter.setAttribute( change.attributeKey, change.attributeNewValue, node! );\n\n\t\t\t\t\twasChanged = true;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn wasChanged;\n}\n\n/**\n * Checks if a node has a correct mention attribute if present.\n * Returns `true` if the node is text and has a mention attribute whose text does not match the expected mention text.\n */\nfunction isBrokenMentionNode( node: Item | null ): boolean {\n\tif ( !node || !( node.is( '$text' ) || node.is( '$textProxy' ) ) || !node.hasAttribute( 'mention' ) ) {\n\t\treturn false;\n\t}\n\n\tconst text = node.data;\n\tconst mention = node.getAttribute( 'mention' ) as MentionAttribute;\n\n\tconst expectedText = mention._text;\n\n\treturn text != expectedText;\n}\n\n/**\n * Fixes a mention on a text node if it needs a fix.\n */\nfunction checkAndFix( textNode: Item | null, writer: Writer ): boolean {\n\tif ( isBrokenMentionNode( textNode ) ) {\n\t\twriter.removeAttribute( 'mention', textNode! );\n\n\t\treturn true;\n\t}\n\n\treturn false;\n}\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./mentionui.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/ui/mentionsview\n */\n\nimport { ListView } from 'ckeditor5/src/ui';\nimport { Rect, type Locale } from 'ckeditor5/src/utils';\n\nimport type MentionListItemView from './mentionlistitemview';\n\nimport '../../theme/mentionui.css';\n\n/**\n * The mention ui view.\n */\nexport default class MentionsView extends ListView {\n\tpublic selected: MentionListItemView | undefined;\n\n\tpublic position: string | undefined;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( locale: Locale ) {\n\t\tsuper( locale );\n\n\t\tthis.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck-mentions'\n\t\t\t\t],\n\n\t\t\t\ttabindex: '-1'\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * {@link #select Selects} the first item.\n\t */\n\tpublic selectFirst(): void {\n\t\tthis.select( 0 );\n\t}\n\n\t/**\n\t * Selects next item to the currently {@link #select selected}.\n\t *\n\t * If the last item is already selected, it will select the first item.\n\t */\n\tpublic selectNext(): void {\n\t\tconst item = this.selected;\n\t\tconst index = this.items.getIndex( item! );\n\n\t\tthis.select( index + 1 );\n\t}\n\n\t/**\n\t * Selects previous item to the currently {@link #select selected}.\n\t *\n\t * If the first item is already selected, it will select the last item.\n\t */\n\tpublic selectPrevious(): void {\n\t\tconst item = this.selected;\n\t\tconst index = this.items.getIndex( item! );\n\n\t\tthis.select( index - 1 );\n\t}\n\n\t/**\n\t * Marks item at a given index as selected.\n\t *\n\t * Handles selection cycling when passed index is out of bounds:\n\t * - if the index is lower than 0, it will select the last item,\n\t * - if the index is higher than the last item index, it will select the first item.\n\t *\n\t * @param index Index of an item to be marked as selected.\n\t */\n\tpublic select( index: number ): void {\n\t\tlet indexToGet = 0;\n\n\t\tif ( index > 0 && index < this.items.length ) {\n\t\t\tindexToGet = index;\n\t\t} else if ( index < 0 ) {\n\t\t\tindexToGet = this.items.length - 1;\n\t\t}\n\n\t\tconst item = this.items.get( indexToGet ) as MentionListItemView;\n\n\t\t// Return early if item is already selected.\n\t\tif ( this.selected === item ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Remove highlight of previously selected item.\n\t\tif ( this.selected ) {\n\t\t\tthis.selected.removeHighlight();\n\t\t}\n\n\t\titem.highlight();\n\t\tthis.selected = item;\n\n\t\t// Scroll the mentions view to the selected element.\n\t\tif ( !this._isItemVisibleInScrolledArea( item ) ) {\n\t\t\tthis.element!.scrollTop = item.element!.offsetTop;\n\t\t}\n\t}\n\n\t/**\n\t * Triggers the `execute` event on the {@link #select selected} item.\n\t */\n\tpublic executeSelected(): void {\n\t\tthis.selected!.fire( 'execute' );\n\t}\n\n\t/**\n\t * Checks if an item is visible in the scrollable area.\n\t *\n\t * The item is considered visible when:\n\t * - its top boundary is inside the scrollable rect\n\t * - its bottom boundary is inside the scrollable rect (the whole item must be visible)\n\t */\n\tprivate _isItemVisibleInScrolledArea( item: MentionListItemView ) {\n\t\treturn new Rect( this.element! ).contains( new Rect( item.element! ) );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/ui/domwrapperview\n */\n\nimport { View, type Template } from 'ckeditor5/src/ui';\nimport type { Locale } from 'ckeditor5/src/utils';\n\n/**\n * This class wraps DOM element as a CKEditor5 UI View.\n *\n * It allows to render any DOM element and use it in mentions list.\n */\nexport default class DomWrapperView extends View {\n\t/**\n\t * The DOM element for which wrapper was created.\n\t */\n\tpublic domElement: HTMLElement;\n\n\t/**\n\t * Controls whether the dom wrapper view is \"on\". This is in line with {@link module:ui/button/button~Button#isOn} property.\n\t *\n\t * @observable\n\t * @default true\n\t */\n\tdeclare public isOn: boolean;\n\n\t/**\n\t * Creates an instance of {@link module:mention/ui/domwrapperview~DomWrapperView} class.\n\t *\n\t * Also see {@link #render}.\n\t */\n\tconstructor( locale: Locale, domElement: HTMLElement ) {\n\t\tsuper( locale );\n\n\t\t// Disable template rendering on this view.\n\t\tthis.template = undefined;\n\n\t\tthis.domElement = domElement;\n\n\t\t// Render dom wrapper as a button.\n\t\tthis.domElement.classList.add( 'ck-button' );\n\n\t\tthis.set( 'isOn', false );\n\n\t\t// Handle isOn state as in buttons.\n\t\tthis.on( 'change:isOn', ( evt, name, isOn ) => {\n\t\t\tif ( isOn ) {\n\t\t\t\tthis.domElement.classList.add( 'ck-on' );\n\t\t\t\tthis.domElement.classList.remove( 'ck-off' );\n\t\t\t} else {\n\t\t\t\tthis.domElement.classList.add( 'ck-off' );\n\t\t\t\tthis.domElement.classList.remove( 'ck-on' );\n\t\t\t}\n\t\t} );\n\n\t\t// Pass click event as execute event.\n\t\tthis.listenTo( this.domElement, 'click', () => {\n\t\t\tthis.fire( 'execute' );\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override render(): void {\n\t\tsuper.render();\n\n\t\tthis.element = this.domElement;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/ui/mentionlistitemview\n */\n\nimport { ListItemView } from 'ckeditor5/src/ui';\n\nimport type { MentionFeedItem } from '../mentionconfig';\n\nimport type DomWrapperView from './domwrapperview';\n\nexport default class MentionListItemView extends ListItemView {\n\tpublic item!: MentionFeedItem;\n\n\tpublic marker!: string;\n\n\tpublic highlight(): void {\n\t\tconst child = this.children.first as DomWrapperView;\n\n\t\tchild.isOn = true;\n\t}\n\n\tpublic removeHighlight(): void {\n\t\tconst child = this.children.first as DomWrapperView;\n\n\t\tchild.isOn = false;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mentionui\n */\n\nimport {\n\tPlugin,\n\ttype Editor\n} from 'ckeditor5/src/core';\n\nimport type {\n\tViewDocumentKeyDownEvent,\n\tMarker,\n\tPosition\n} from 'ckeditor5/src/engine';\n\nimport {\n\tButtonView,\n\tContextualBalloon,\n\tclickOutsideHandler\n} from 'ckeditor5/src/ui';\n\nimport {\n\tCKEditorError,\n\tCollection,\n\tRect,\n\tenv,\n\tkeyCodes,\n\tlogWarning,\n\ttype PositionOptions\n} from 'ckeditor5/src/utils';\n\nimport { TextWatcher, type TextWatcherMatchedEvent } from 'ckeditor5/src/typing';\n\nimport { debounce } from 'lodash-es';\n\nimport MentionsView from './ui/mentionsview';\nimport DomWrapperView from './ui/domwrapperview';\nimport MentionListItemView from './ui/mentionlistitemview';\n\nimport type {\n\tFeedCallback,\n\tMentionFeed,\n\tMentionFeedItem,\n\tItemRenderer,\n\tMentionFeedObjectItem\n} from './mentionconfig';\n\nconst VERTICAL_SPACING = 3;\n\n// The key codes that mention UI handles when it is open (without commit keys).\nconst defaultHandledKeyCodes = [\n\tkeyCodes.arrowup,\n\tkeyCodes.arrowdown,\n\tkeyCodes.esc\n];\n\n// Dropdown commit key codes.\nconst defaultCommitKeyCodes = [\n\tkeyCodes.enter,\n\tkeyCodes.tab\n];\n\n/**\n * The mention UI feature.\n */\nexport default class MentionUI extends Plugin {\n\t/**\n\t * The mention view.\n\t */\n\tprivate readonly _mentionsView: MentionsView;\n\n\t/**\n\t * Stores mention feeds configurations.\n\t */\n\tprivate _mentionsConfigurations: Map<string, Definition>;\n\n\t/**\n\t * The contextual balloon plugin instance.\n\t */\n\tprivate _balloon: ContextualBalloon | undefined;\n\n\tprivate _items = new Collection<{ item: MentionFeedObjectItem; marker: string }>();\n\n\tprivate _lastRequested?: string;\n\n\t/**\n\t * Debounced feed requester. It uses `lodash#debounce` method to delay function call.\n\t */\n\tprivate _requestFeedDebounced: ( marker: string, feedText: string ) => void;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'MentionUI' {\n\t\treturn 'MentionUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ContextualBalloon ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\tthis._mentionsView = this._createMentionView();\n\t\tthis._mentionsConfigurations = new Map();\n\t\tthis._requestFeedDebounced = debounce( this._requestFeed, 100 );\n\n\t\teditor.config.define( 'mention', { feeds: [] } );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\tconst commitKeys = editor.config.get( 'mention.commitKeys' ) || defaultCommitKeyCodes;\n\t\tconst handledKeyCodes = defaultHandledKeyCodes.concat( commitKeys );\n\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\t// Key listener that handles navigation in mention view.\n\t\teditor.editing.view.document.on<ViewDocumentKeyDownEvent>( 'keydown', ( evt, data ) => {\n\t\t\tif ( isHandledKey( data.keyCode ) && this._isUIVisible ) {\n\t\t\t\t// do it before preventing default since space should be inserted\n\t\t\t\tif (data.keyCode == keyCodes.space) {\n\t\t\t\t\tthis._hideUIAndRemoveMarker();\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tdata.preventDefault();\n\t\t\t\tevt.stop(); // Required for Enter key overriding.\n\n\t\t\t\tif ( data.keyCode == keyCodes.arrowdown ) {\n\t\t\t\t\tthis._mentionsView.selectNext();\n\t\t\t\t}\n\n\t\t\t\tif ( data.keyCode == keyCodes.arrowup ) {\n\t\t\t\t\tthis._mentionsView.selectPrevious();\n\t\t\t\t}\n\n\t\t\t\tif ( commitKeys.includes( data.keyCode ) ) {\n\t\t\t\t\tthis._mentionsView.executeSelected();\n\t\t\t\t}\n\n\t\t\t\tif ( data.keyCode == keyCodes.esc ) {\n\t\t\t\t\tthis._hideUIAndRemoveMarker();\n\t\t\t\t}\n\t\t\t}\n\t\t}, { priority: 'highest' } ); // Required to override the Enter key.\n\n\t\t// Close the dropdown upon clicking outside of the plugin UI.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this._mentionsView,\n\t\t\tactivator: () => this._isUIVisible,\n\t\t\tcontextElements: () => [ this._balloon!.view.element! ],\n\t\t\tcallback: () => this._hideUIAndRemoveMarker()\n\t\t} );\n\n\t\tconst feeds = editor.config.get( 'mention.feeds' )!;\n\n\t\tfor ( const mentionDescription of feeds ) {\n\t\t\tconst { feed, marker, dropdownLimit } = mentionDescription;\n\n\t\t\tif ( !isValidMentionMarker( marker ) ) {\n\t\t\t\t/**\n\t\t\t\t * The marker must be a single character.\n\t\t\t\t *\n\t\t\t\t * Correct markers: `'@'`, `'#'`.\n\t\t\t\t *\n\t\t\t\t * Incorrect markers: `'$$'`, `'[@'`.\n\t\t\t\t *\n\t\t\t\t * See {@link module:mention/mentionconfig~MentionConfig}.\n\t\t\t\t *\n\t\t\t\t * @error mentionconfig-incorrect-marker\n\t\t\t\t * @param marker Configured marker\n\t\t\t\t */\n\t\t\t\tthrow new CKEditorError( 'mentionconfig-incorrect-marker', null, { marker } );\n\t\t\t}\n\n\t\t\tconst feedCallback = typeof feed == 'function' ? feed.bind( this.editor ) : createFeedCallback( feed );\n\t\t\tconst itemRenderer = mentionDescription.itemRenderer;\n\t\t\tconst definition = { marker, feedCallback, itemRenderer, dropdownLimit };\n\n\t\t\tthis._mentionsConfigurations.set( marker, definition );\n\t\t}\n\n\t\tthis._setupTextWatcher( feeds );\n\t\tthis.listenTo( editor, 'change:isReadOnly', () => {\n\t\t\tthis._hideUIAndRemoveMarker();\n\t\t} );\n\t\tthis.on<RequestFeedResponseEvent>( 'requestFeed:response', ( evt, data ) => this._handleFeedResponse( data ) );\n\t\tthis.on<RequestFeedErrorEvent>( 'requestFeed:error', () => this._hideUIAndRemoveMarker() );\n\n\t\t/**\n\t\t * Checks if a given key code is handled by the mention UI.\n\t\t */\n\t\tfunction isHandledKey( keyCode: number ): boolean {\n\t\t\treturn handledKeyCodes.includes( keyCode );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override destroy(): void {\n\t\tsuper.destroy();\n\n\t\t// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).\n\t\tthis._mentionsView.destroy();\n\t}\n\n\t/**\n\t * Returns true when {@link #_mentionsView} is in the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon} and it is\n\t * currently visible.\n\t */\n\tprivate get _isUIVisible(): boolean {\n\t\treturn this._balloon!.visibleView === this._mentionsView;\n\t}\n\n\t/**\n\t * Creates the {@link #_mentionsView}.\n\t */\n\tprivate _createMentionView(): MentionsView {\n\t\tconst locale = this.editor.locale;\n\n\t\tconst mentionsView = new MentionsView( locale );\n\n\t\tmentionsView.items.bindTo( this._items ).using( data => {\n\t\t\tconst { item, marker } = data;\n\n\t\t\tconst { dropdownLimit: markerDropdownLimit } = this._mentionsConfigurations.get( marker )!;\n\n\t\t\t// Set to 10 by default for backwards compatibility. See: #10479\n\t\t\tconst dropdownLimit = markerDropdownLimit || this.editor.config.get( 'mention.dropdownLimit' ) || 10;\n\n\t\t\tif ( mentionsView.items.length >= dropdownLimit ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tconst listItemView = new MentionListItemView( locale );\n\n\t\t\tconst view = this._renderItem( item, marker );\n\t\t\tview.delegate( 'execute' ).to( listItemView );\n\n\t\t\tlistItemView.children.add( view );\n\t\t\tlistItemView.item = item;\n\t\t\tlistItemView.marker = marker;\n\n\t\t\tlistItemView.on( 'execute', () => {\n\t\t\t\tmentionsView.fire( 'execute', {\n\t\t\t\t\titem,\n\t\t\t\t\tmarker\n\t\t\t\t} );\n\t\t\t} );\n\n\t\t\treturn listItemView;\n\t\t} );\n\n\t\tmentionsView.on( 'execute', ( evt, data ) => {\n\t\t\tconst editor = this.editor;\n\t\t\tconst model = editor.model;\n\n\t\t\tconst item = data.item;\n\t\t\tconst marker = data.marker;\n\n\t\t\tconst mentionMarker = editor.model.markers.get( 'mention' );\n\n\t\t\t// Create a range on matched text.\n\t\t\tconst end = model.createPositionAt( model.document.selection.focus! );\n\t\t\tconst start = model.createPositionAt( mentionMarker!.getStart() );\n\t\t\tconst range = model.createRange( start, end );\n\n\t\t\tthis._hideUIAndRemoveMarker();\n\n\t\t\teditor.execute( 'mention', {\n\t\t\t\tmention: item,\n\t\t\t\ttext: item.text,\n\t\t\t\tmarker,\n\t\t\t\trange\n\t\t\t} );\n\n\t\t\teditor.editing.view.focus();\n\t\t} );\n\n\t\treturn mentionsView;\n\t}\n\n\t/**\n\t * Returns item renderer for the marker.\n\t */\n\tprivate _getItemRenderer( marker: string ): ItemRenderer | undefined {\n\t\tconst { itemRenderer } = this._mentionsConfigurations.get( marker )!;\n\n\t\treturn itemRenderer;\n\t}\n\n\t/**\n\t * Requests a feed from a configured callbacks.\n\t */\n\tprivate _requestFeed( marker: string, feedText: string ): void {\n\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Feed]%c Requesting for', 'color: blue', 'color: black', `\"${ feedText }\"` );\n\n\t\t// Store the last requested feed - it is used to discard any out-of order requests.\n\t\tthis._lastRequested = feedText;\n\n\t\tconst { feedCallback } = this._mentionsConfigurations.get( marker )!;\n\t\tconst feedResponse = feedCallback( feedText );\n\n\t\tconst isAsynchronous = feedResponse instanceof Promise;\n\n\t\t// For synchronous feeds (e.g. callbacks, arrays) fire the response event immediately.\n\t\tif ( !isAsynchronous ) {\n\t\t\tthis.fire<RequestFeedResponseEvent>( 'requestFeed:response', { feed: feedResponse, marker, feedText } );\n\n\t\t\treturn;\n\t\t}\n\n\t\t// Handle the asynchronous responses.\n\t\tfeedResponse\n\t\t\t.then( response => {\n\t\t\t\t// Check the feed text of this response with the last requested one so either:\n\t\t\t\tif ( this._lastRequested == feedText ) {\n\t\t\t\t\t// It is the same and fire the response event.\n\t\t\t\t\tthis.fire<RequestFeedResponseEvent>( 'requestFeed:response', { feed: response, marker, feedText } );\n\t\t\t\t} else {\n\t\t\t\t\t// It is different - most probably out-of-order one, so fire the discarded event.\n\t\t\t\t\tthis.fire<RequestFeedDiscardedEvent>( 'requestFeed:discarded', { feed: response, marker, feedText } );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t.catch( error => {\n\t\t\t\tthis.fire<RequestFeedErrorEvent>( 'requestFeed:error', { error } );\n\n\t\t\t\t/**\n\t\t\t\t * The callback used for obtaining mention autocomplete feed thrown and error and the mention UI was hidden or\n\t\t\t\t * not displayed at all.\n\t\t\t\t *\n\t\t\t\t * @error mention-feed-callback-error\n\t\t\t\t */\n\t\t\t\tlogWarning( 'mention-feed-callback-error', { marker } );\n\t\t\t} );\n\t}\n\n\t/**\n\t * Registers a text watcher for the marker.\n\t */\n\tprivate _setupTextWatcher( feeds: Array<MentionFeed> ): TextWatcher {\n\t\tconst editor = this.editor;\n\n\t\tconst feedsWithPattern: Array<MentionFeed & { pattern: RegExp }> = feeds.map( feed => ( {\n\t\t\t...feed,\n\t\t\tpattern: createRegExp( feed.marker, feed.minimumCharacters || 0 )\n\t\t} ) );\n\n\t\tconst watcher = new TextWatcher( editor.model, createTestCallback( feedsWithPattern ) );\n\n\t\t// use \"matched:data\" instead of just \"matched\" so that mention is not triggered on mere click\n\t\twatcher.on<TextWatcherMatchedEvent>( 'matched:data', ( evt, data ) => {\n\t\t\tconst markerDefinition = getLastValidMarkerInText( feedsWithPattern, data.text );\n\t\t\tconst selection = editor.model.document.selection;\n\t\t\tconst focus = selection.focus;\n\t\t\tconst markerPosition = editor.model.createPositionAt( focus!.parent, markerDefinition!.position );\n\n\t\t\tif ( isPositionInExistingMention( focus! ) || isMarkerInExistingMention( markerPosition ) ) {\n\t\t\t\tthis._hideUIAndRemoveMarker();\n\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst feedText = requestFeedText( markerDefinition, data.text );\n\t\t\tconst matchedTextLength = markerDefinition!.marker.length + feedText.length;\n\n\t\t\t// Create a marker range.\n\t\t\tconst start = focus!.getShiftedBy( -matchedTextLength );\n\t\t\tconst end = focus!.getShiftedBy( -feedText.length );\n\n\t\t\tconst markerRange = editor.model.createRange( start, end );\n\n\t\t\t// @if CK_DEBUG_MENTION // console.group( '%c[TextWatcher]%c matched', 'color: red', 'color: black', `\"${ feedText }\"` );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'data#text', `\"${ data.text }\"` );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'data#range', data.range.start.path, data.range.end.path );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'marker definition', markerDefinition );\n\t\t\t// @if CK_DEBUG_MENTION // console.log( 'marker range', markerRange.start.path, markerRange.end.path );\n\n\t\t\tif ( checkIfStillInCompletionMode( editor ) ) {\n\t\t\t\tconst mentionMarker = editor.model.markers.get( 'mention' )!;\n\n\t\t\t\t// Update the marker - user might've moved the selection to other mention trigger.\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Editing]%c Updating the marker.', 'color: purple', 'color: black' );\n\n\t\t\t\t\twriter.updateMarker( mentionMarker, { range: markerRange } );\n\t\t\t\t} );\n\t\t\t} else {\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Editing]%c Adding the marker.', 'color: purple', 'color: black' );\n\n\t\t\t\t\twriter.addMarker( 'mention', { range: markerRange, usingOperation: false, affectsData: false } );\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\tthis._requestFeedDebounced( markerDefinition!.marker, feedText );\n\n\t\t\t// @if CK_DEBUG_MENTION // console.groupEnd();\n\t\t} );\n\n\t\twatcher.on( 'unmatched', () => {\n\t\t\tthis._hideUIAndRemoveMarker();\n\t\t} );\n\n\t\tconst mentionCommand = editor.commands.get( 'mention' )!;\n\t\twatcher.bind( 'isEnabled' ).to( mentionCommand );\n\n\t\treturn watcher;\n\t}\n\n\t/**\n\t * Handles the feed response event data.\n\t */\n\tprivate _handleFeedResponse( data: RequestFeedResponseEvent['args'][0] ) {\n\t\tconst { feed, marker } = data;\n\n\t\t// eslint-disable-next-line max-len\n\t\t// @if CK_DEBUG_MENTION // console.log( `%c[Feed]%c Response for \"${ data.feedText }\" (${ feed.length })`, 'color: blue', 'color: black', feed );\n\n\t\t// If the marker is not in the document happens when the selection had changed and the 'mention' marker was removed.\n\t\tif ( !checkIfStillInCompletionMode( this.editor ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Reset the view.\n\t\tthis._items.clear();\n\n\t\tfor ( const feedItem of feed ) {\n\t\t\tconst item = typeof feedItem != 'object' ? { id: feedItem, text: feedItem } : feedItem;\n\n\t\t\tthis._items.add( { item, marker } );\n\t\t}\n\n\t\tconst mentionMarker = this.editor.model.markers.get( 'mention' );\n\n\t\tif ( this._items.length ) {\n\t\t\tthis._showOrUpdateUI( mentionMarker! );\n\t\t} else {\n\t\t\t// Do not show empty mention UI.\n\t\t\tthis._hideUIAndRemoveMarker();\n\t\t}\n\t}\n\n\t/**\n\t * Shows the mentions balloon. If the panel is already visible, it will reposition it.\n\t */\n\tprivate _showOrUpdateUI( markerMarker: Marker ): void {\n\t\tif ( this._isUIVisible ) {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[UI]%c Updating position.', 'color: green', 'color: black' );\n\n\t\t\t// Update balloon position as the mention list view may change its size.\n\t\t\tthis._balloon!.updatePosition( this._getBalloonPanelPositionData( markerMarker, this._mentionsView!.position ) );\n\t\t} else {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[UI]%c Showing the UI.', 'color: green', 'color: black' );\n\n\t\t\tthis._balloon!.add( {\n\t\t\t\tview: this._mentionsView,\n\t\t\t\tposition: this._getBalloonPanelPositionData( markerMarker, this._mentionsView.position ),\n\t\t\t\tsingleViewMode: true\n\t\t\t} );\n\t\t}\n\n\t\tthis._mentionsView.position = this._balloon!.view.position;\n\t\tthis._mentionsView.selectFirst();\n\t}\n\n\t/**\n\t * Hides the mentions balloon and removes the 'mention' marker from the markers collection.\n\t */\n\tprivate _hideUIAndRemoveMarker(): void {\n\t\t// Remove the mention view from balloon before removing marker - it is used by balloon position target().\n\t\tif ( this._balloon!.hasView( this._mentionsView ) ) {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[UI]%c Hiding the UI.', 'color: green', 'color: black' );\n\n\t\t\tthis._balloon!.remove( this._mentionsView );\n\t\t}\n\n\t\tif ( checkIfStillInCompletionMode( this.editor ) ) {\n\t\t\t// @if CK_DEBUG_MENTION // console.log( '%c[Editing]%c Removing marker.', 'color: purple', 'color: black' );\n\n\t\t\tthis.editor.model.change( writer => writer.removeMarker( 'mention' ) );\n\t\t}\n\n\t\t// Make the last matched position on panel view undefined so the #_getBalloonPanelPositionData() method will return all positions\n\t\t// on the next call.\n\t\tthis._mentionsView.position = undefined;\n\t}\n\n\t/**\n\t * Renders a single item in the autocomplete list.\n\t */\n\tprivate _renderItem( item: MentionFeedObjectItem, marker: string ): DomWrapperView | ButtonView {\n\t\tconst editor = this.editor;\n\n\t\tlet view;\n\t\tlet label = item.id;\n\n\t\tconst renderer = this._getItemRenderer( marker );\n\n\t\tif ( renderer ) {\n\t\t\tconst renderResult = renderer( item );\n\n\t\t\tif ( typeof renderResult != 'string' ) {\n\t\t\t\tview = new DomWrapperView( editor.locale, renderResult );\n\t\t\t} else {\n\t\t\t\tlabel = renderResult;\n\t\t\t}\n\t\t}\n\n\t\tif ( !view ) {\n\t\t\tconst buttonView = new ButtonView( editor.locale );\n\n\t\t\tbuttonView.label = label;\n\t\t\tbuttonView.withText = true;\n\n\t\t\tview = buttonView;\n\t\t}\n\n\t\treturn view;\n\t}\n\n\t/**\n\t * Creates a position options object used to position the balloon panel.\n\t *\n\t * @param mentionMarker\n\t * @param preferredPosition The name of the last matched position name.\n\t */\n\tprivate _getBalloonPanelPositionData( mentionMarker: Marker, preferredPosition: MentionsView['position'] ): Partial<PositionOptions> {\n\t\tconst editor = this.editor;\n\t\tconst editing = editor.editing;\n\t\tconst domConverter = editing.view.domConverter;\n\t\tconst mapper = editing.mapper;\n\t\tconst uiLanguageDirection = editor.locale.uiLanguageDirection;\n\n\t\treturn {\n\t\t\ttarget: () => {\n\t\t\t\tlet modelRange = mentionMarker.getRange();\n\n\t\t\t\t// Target the UI to the model selection range - the marker has been removed so probably the UI will not be shown anyway.\n\t\t\t\t// The logic is used by ContextualBalloon to display another panel in the same place.\n\t\t\t\tif ( modelRange.start.root.rootName == '$graveyard' ) {\n\t\t\t\t\tmodelRange = editor.model.document.selection.getFirstRange()!;\n\t\t\t\t}\n\n\t\t\t\tconst viewRange = mapper.toViewRange( modelRange );\n\t\t\t\tconst rangeRects = Rect.getDomRangeRects( domConverter.viewRangeToDom( viewRange ) );\n\n\t\t\t\treturn rangeRects.pop()!;\n\t\t\t},\n\t\t\tlimiter: () => {\n\t\t\t\tconst view = this.editor.editing.view;\n\t\t\t\tconst viewDocument = view.document;\n\t\t\t\tconst editableElement = viewDocument.selection.editableElement;\n\n\t\t\t\tif ( editableElement ) {\n\t\t\t\t\treturn view.domConverter.mapViewToDom( editableElement.root ) as HTMLElement;\n\t\t\t\t}\n\n\t\t\t\treturn null;\n\t\t\t},\n\t\t\tpositions: getBalloonPanelPositions( preferredPosition, uiLanguageDirection )\n\t\t};\n\t}\n}\n\n/**\n * Returns the balloon positions data callbacks.\n */\nfunction getBalloonPanelPositions(\n\tpreferredPosition: MentionsView['position'],\n\tuiLanguageDirection: string\n): PositionOptions['positions'] {\n\tconst positions: Record<string, PositionOptions['positions'][0]> = {\n\t\t// Positions the panel to the southeast of the caret rectangle.\n\t\t'caret_se': ( targetRect: Rect ) => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.bottom + VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right,\n\t\t\t\tname: 'caret_se',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t},\n\n\t\t// Positions the panel to the northeast of the caret rectangle.\n\t\t'caret_ne': ( targetRect: Rect, balloonRect: Rect ) => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.top - balloonRect.height - VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right,\n\t\t\t\tname: 'caret_ne',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t},\n\n\t\t// Positions the panel to the southwest of the caret rectangle.\n\t\t'caret_sw': ( targetRect: Rect, balloonRect: Rect ) => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.bottom + VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right - balloonRect.width,\n\t\t\t\tname: 'caret_sw',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t},\n\n\t\t// Positions the panel to the northwest of the caret rect.\n\t\t'caret_nw': ( targetRect: Rect, balloonRect: Rect ) => {\n\t\t\treturn {\n\t\t\t\ttop: targetRect.top - balloonRect.height - VERTICAL_SPACING,\n\t\t\t\tleft: targetRect.right - balloonRect.width,\n\t\t\t\tname: 'caret_nw',\n\t\t\t\tconfig: {\n\t\t\t\t\twithArrow: false\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t};\n\n\t// Returns only the last position if it was matched to prevent the panel from jumping after the first match.\n\tif ( Object.prototype.hasOwnProperty.call( positions, preferredPosition! ) ) {\n\t\treturn [\n\t\t\tpositions[ preferredPosition! ]\n\t\t];\n\t}\n\n\t// By default, return all position callbacks ordered depending on the UI language direction.\n\treturn uiLanguageDirection !== 'rtl' ? [\n\t\tpositions.caret_se,\n\t\tpositions.caret_sw,\n\t\tpositions.caret_ne,\n\t\tpositions.caret_nw\n\t] : [\n\t\tpositions.caret_sw,\n\t\tpositions.caret_se,\n\t\tpositions.caret_nw,\n\t\tpositions.caret_ne\n\t];\n}\n\n/**\n * Returns a marker definition of the last valid occurring marker in a given string.\n * If there is no valid marker in a string, it returns undefined.\n *\n * Example of returned object:\n *\n * ```ts\n * {\n * \tmarker: '@',\n * \tposition: 4,\n * \tminimumCharacters: 0\n * }\n * ````\n *\n * @param feedsWithPattern Registered feeds in editor for mention plugin with created RegExp for matching marker.\n * @param text String to find the marker in\n * @returns Matched marker's definition\n */\nfunction getLastValidMarkerInText(\n\tfeedsWithPattern: Array<MentionFeed & { pattern: RegExp }>,\n\ttext: string\n): MarkerDefinition {\n\tlet lastValidMarker: any;\n\n\tfor ( const feed of feedsWithPattern ) {\n\t\tconst currentMarkerLastIndex = text.lastIndexOf( feed.marker );\n\n\t\tif ( currentMarkerLastIndex > 0 && !text.substring( currentMarkerLastIndex - 1 ).match( feed.pattern ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tif ( !lastValidMarker || currentMarkerLastIndex >= lastValidMarker.position ) {\n\t\t\tlastValidMarker = {\n\t\t\t\tmarker: feed.marker,\n\t\t\t\tposition: currentMarkerLastIndex,\n\t\t\t\tminimumCharacters: feed.minimumCharacters,\n\t\t\t\tpattern: feed.pattern\n\t\t\t};\n\t\t}\n\t}\n\n\treturn lastValidMarker;\n}\n\n/**\n * Creates a RegExp pattern for the marker.\n *\n * Function has to be exported to achieve 100% code coverage.\n */\n// trilium change: '=' will end the mention but also accepts it as the beginning (support for autocompleting attribute name and relation value)\nexport function createRegExp( marker: string, minimumCharacters: number ): RegExp {\n\tconst numberOfCharacters = minimumCharacters == 0 ? '*' : `{${ minimumCharacters },}`;\n\n\tconst openAfterCharacters = env.features.isRegExpUnicodePropertySupported ? '\\\\p{Ps}\\\\p{Pi}\"\\'' : '\\\\(\\\\[{\"\\'';\n\tconst mentionCharacters = '^='\n\n\t// The pattern consists of 3 groups:\n\t// - 0 (non-capturing): Opening sequence - start of the line, space or an opening punctuation character like \"(\" or \"\\\"\",\n\t// - 1: The marker character,\n\t// - 2: Mention input (taking the minimal length into consideration to trigger the UI),\n\t//\n\t// The pattern matches up to the caret (end of string switch - $).\n\t//               (0:      opening sequence        )(1:  marker   )(2:                typed mention                )$\n\tconst pattern = `(?:^|[= ${ openAfterCharacters }])([${ marker }])([${ mentionCharacters }]${ numberOfCharacters })$`;\n\n\treturn new RegExp( pattern, 'u' );\n}\n\n/**\n * Creates a test callback for the marker to be used in the text watcher instance.\n *\n * @param feedsWithPattern Feeds of mention plugin configured in editor with RegExp to match marker in text\n */\nfunction createTestCallback( feedsWithPattern: Array<MentionFeed & { pattern: RegExp }> ): ( text: string ) => boolean {\n\tconst textMatcher = ( text: string ) => {\n\t\tconst markerDefinition = getLastValidMarkerInText( feedsWithPattern, text );\n\n\t\tif ( !markerDefinition ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tlet splitStringFrom = 0;\n\n\t\tif ( markerDefinition.position !== 0 ) {\n\t\t\tsplitStringFrom = markerDefinition.position - 1;\n\t\t}\n\n\t\tconst textToTest = text.substring( splitStringFrom );\n\n\t\treturn markerDefinition.pattern.test( textToTest );\n\t};\n\n\treturn textMatcher;\n}\n\n/**\n * Creates a text matcher from the marker.\n */\nfunction requestFeedText( markerDefinition: MarkerDefinition, text: string ): string {\n\tlet splitStringFrom = 0;\n\n\tif ( markerDefinition.position !== 0 ) {\n\t\tsplitStringFrom = markerDefinition.position - 1;\n\t}\n\n\tconst regExp = createRegExp( markerDefinition.marker, 0 );\n\tconst textToMatch = text.substring( splitStringFrom );\n\tconst match = textToMatch.match( regExp )!;\n\n\treturn match[ 2 ];\n}\n\n/**\n * The default feed callback.\n */\nfunction createFeedCallback( feedItems: Array<MentionFeedItem> ) {\n\treturn ( feedText: string ) => {\n\t\tconst filteredItems = feedItems\n\t\t\t// Make the default mention feed case-insensitive.\n\t\t\t.filter( item => {\n\t\t\t\t// Item might be defined as object.\n\t\t\t\tconst itemId = typeof item == 'string' ? item : String( item.id );\n\n\t\t\t\t// The default feed is case insensitive.\n\t\t\t\treturn itemId.toLowerCase().includes( feedText.toLowerCase() );\n\t\t\t} );\n\t\treturn filteredItems;\n\t};\n}\n\n/**\n * Checks if position in inside or right after a text with a mention.\n */\nfunction isPositionInExistingMention( position: Position ): boolean | null {\n\t// The text watcher listens only to changed range in selection - so the selection attributes are not yet available\n\t// and you cannot use selection.hasAttribute( 'mention' ) just yet.\n\t// See https://github.com/ckeditor/ckeditor5-engine/issues/1723.\n\tconst hasMention = position.textNode && position.textNode.hasAttribute( 'mention' );\n\n\tconst nodeBefore = position.nodeBefore;\n\n\treturn hasMention || nodeBefore && nodeBefore.is( '$text' ) && nodeBefore.hasAttribute( 'mention' );\n}\n\n/**\n * Checks if the closest marker offset is at the beginning of a mention.\n *\n * See https://github.com/ckeditor/ckeditor5/issues/11400.\n */\nfunction isMarkerInExistingMention( markerPosition: Position ): boolean | null {\n\tconst nodeAfter = markerPosition.nodeAfter;\n\n\treturn nodeAfter && nodeAfter.is( '$text' ) && nodeAfter.hasAttribute( 'mention' );\n}\n\n/**\n * Checks if string is a valid mention marker.\n */\nfunction isValidMentionMarker( marker: string ): boolean | string {\n\treturn marker && marker.length == 1;\n}\n\n/**\n * Checks the mention plugins is in completion mode (e.g. when typing is after a valid mention string like @foo).\n */\nfunction checkIfStillInCompletionMode( editor: Editor ): boolean {\n\treturn editor.model.markers.has( 'mention' );\n}\n\ntype RequestFeedResponse = {\n\n\t/**\n\t * Autocomplete items\n\t */\n\tfeed: Array<MentionFeedItem>;\n\n\t/**\n\t * The character which triggers autocompletion for mention.\n\t */\n\tmarker: string;\n\n\t/**\n\t * The text for which feed items were requested.\n\t */\n\tfeedText: string;\n};\n\ntype RequestFeedError = {\n\n\t/**\n\t * The error that was caught.\n\t */\n\terror: ErrorEvent;\n};\n\n/**\n * Fired whenever requested feed has a response.\n */\ntype RequestFeedResponseEvent = {\n\tname: 'requestFeed:response';\n\targs: [ RequestFeedResponse ];\n};\n\n/**\n * Fired whenever the requested feed was discarded. This happens when the response was delayed and\n * other feed was already requested.\n */\ntype RequestFeedDiscardedEvent = {\n\tname: 'requestFeed:discarded';\n\targs: [ RequestFeedResponse ];\n};\n\n/**\n * Fired whenever the requested {@link module:mention/mentionconfig~MentionFeed#feed} promise fails with error.\n */\ntype RequestFeedErrorEvent = {\n\tname: 'requestFeed:error';\n\targs: [ RequestFeedError ];\n};\n\ntype Definition = {\n\tmarker: string;\n\tfeedCallback: FeedCallback;\n\titemRenderer?: ItemRenderer;\n\tdropdownLimit?: number;\n};\n\ntype MarkerDefinition = {\n\tmarker: string;\n\tminimumCharacters?: number;\n\tpattern: RegExp;\n\tposition: number;\n};\n","import api from \"!../../../../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../../../../node_modules/css-loader/dist/cjs.js!../../../../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./mention.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentediting\n */\n\nimport { Plugin, MultiCommand } from 'ckeditor5/src/core';\n\n/**\n * The indent editing feature.\n *\n * This plugin registers the `'indent'` and `'outdent'` commands.\n *\n * **Note**: In order for the commands to work, at least one of the compatible features is required. Read more in the\n * {@link module:indent/indent~Indent indent feature} API documentation.\n */\nexport default class IndentEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'IndentEditing' {\n\t\treturn 'IndentEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.commands.add( 'indent', new MultiCommand( editor ) );\n\t\teditor.commands.add( 'outdent', new MultiCommand( editor ) );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zM1.632 6.95 5.02 9.358a.4.4 0 0 1-.013.661l-3.39 2.207A.4.4 0 0 1 1 11.892V7.275a.4.4 0 0 1 .632-.326z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 3.75c0 .414.336.75.75.75h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 0 0-.75.75zm5 6c0 .414.336.75.75.75h9.5a.75.75 0 1 0 0-1.5h-9.5a.75.75 0 0 0-.75.75zM2.75 16.5h14.5a.75.75 0 1 0 0-1.5H2.75a.75.75 0 1 0 0 1.5zm1.618-9.55L.98 9.358a.4.4 0 0 0 .013.661l3.39 2.207A.4.4 0 0 0 5 11.892V7.275a.4.4 0 0 0-.632-.326z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentui\n */\n\nimport { ButtonView } from 'ckeditor5/src/ui';\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport indentIcon from '../theme/icons/indent.svg';\nimport outdentIcon from '../theme/icons/outdent.svg';\n\n/**\n * The indent UI feature.\n *\n * This plugin registers the `'indent'` and `'outdent'` buttons.\n *\n * **Note**: In order for the commands to work, at least one of the compatible features is required. Read more in\n * the {@link module:indent/indent~Indent indent feature} API documentation.\n */\nexport default class IndentUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'IndentUI' {\n\t\treturn 'IndentUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst locale = editor.locale;\n\t\tconst t = editor.t;\n\n\t\tconst localizedIndentIcon = locale.uiLanguageDirection == 'ltr' ? indentIcon : outdentIcon;\n\t\tconst localizedOutdentIcon = locale.uiLanguageDirection == 'ltr' ? outdentIcon : indentIcon;\n\n\t\tthis._defineButton( 'indent', t( 'Increase indent' ), localizedIndentIcon );\n\t\tthis._defineButton( 'outdent', t( 'Decrease indent' ), localizedOutdentIcon );\n\t}\n\n\t/**\n\t * Defines a UI button.\n\t */\n\tprivate _defineButton( commandName: 'indent' | 'outdent', label: string, icon: string ): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( commandName, locale => {\n\t\t\tconst command = editor.commands.get( commandName )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel,\n\t\t\t\ticon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( commandName );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentblockcommand\n */\n\nimport { Command, type Editor } from 'ckeditor5/src/core';\nimport type { Element, Model } from 'ckeditor5/src/engine';\nimport { first } from 'ckeditor5/src/utils';\n\nimport type { IndentBehavior } from './indentcommandbehavior/indentbehavior';\n\n/**\n * The indent block command.\n *\n * The command is registered by the {@link module:indent/indentblock~IndentBlock} as `'indentBlock'` for indenting blocks and\n * `'outdentBlock'` for outdenting blocks.\n *\n * To increase block indentation at the current selection, execute the command:\n *\n * ```ts\n * editor.execute( 'indentBlock' );\n * ```\n *\n * To decrease block indentation at the current selection, execute the command:\n *\n * ```ts\n * editor.execute( 'outdentBlock' );\n * ```\n */\nexport default class IndentBlockCommand extends Command {\n\t/**\n\t * The command's indentation behavior.\n\t */\n\tprivate readonly _indentBehavior: IndentBehavior;\n\n\t/**\n\t * Creates an instance of the command.\n\t */\n\tconstructor( editor: Editor, indentBehavior: IndentBehavior ) {\n\t\tsuper( editor );\n\n\t\tthis._indentBehavior = indentBehavior;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\t// Check whether any of the position's ancestors is a list item.\n\t\tconst editor = this.editor;\n\t\tconst model = editor.model;\n\n\t\tconst block = first( model.document.selection.getSelectedBlocks() );\n\n\t\tif ( !block || !model.schema.checkAttribute( block, 'blockIndent' ) ) {\n\t\t\tthis.isEnabled = false;\n\n\t\t\treturn;\n\t\t}\n\n\t\tthis.isEnabled = this._indentBehavior.checkEnabled( block.getAttribute( 'blockIndent' ) as string );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\n\t\tconst blocksToChange = getBlocksToChange( model );\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const block of blocksToChange ) {\n\t\t\t\tconst currentIndent = block.getAttribute( 'blockIndent' ) as string;\n\n\t\t\t\tconst nextIndent = this._indentBehavior.getNextIndent( currentIndent );\n\n\t\t\t\tif ( nextIndent ) {\n\t\t\t\t\twriter.setAttribute( 'blockIndent', nextIndent, block );\n\t\t\t\t} else {\n\t\t\t\t\twriter.removeAttribute( 'blockIndent', block );\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n}\n\n/**\n * Returns blocks from selection that should have blockIndent selection set.\n */\nfunction getBlocksToChange( model: Model ): Array<Element> {\n\tconst selection = model.document.selection;\n\tconst schema = model.schema;\n\tconst blocksInSelection = Array.from( selection.getSelectedBlocks() );\n\n\treturn blocksInSelection.filter( block => schema.checkAttribute( block, 'blockIndent' ) );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentcommandbehavior/indentusingoffset\n */\n\nimport type { IndentBehavior } from './indentbehavior';\n\n/**\n * The block indentation behavior that uses offsets to set indentation.\n */\nexport default class IndentUsingOffset implements IndentBehavior {\n\t/**\n\t * The direction of indentation.\n\t */\n\tpublic isForward: boolean;\n\n\t/**\n\t * The offset of the next indentation step.\n\t */\n\tpublic offset: number;\n\n\t/**\n\t * Indentation unit.\n\t */\n\tpublic unit: string;\n\n\t/**\n\t * Creates an instance of the indentation behavior.\n\t *\n\t * @param config.direction The direction of indentation.\n\t * @param config.offset The offset of the next indentation step.\n\t * @param config.unit Indentation unit.\n\t */\n\tconstructor( config: { direction: 'forward' | 'backward'; offset: number; unit: string } ) {\n\t\tthis.isForward = config.direction === 'forward';\n\t\tthis.offset = config.offset;\n\t\tthis.unit = config.unit;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic checkEnabled( indentAttributeValue: string ): boolean {\n\t\tconst currentOffset = parseFloat( indentAttributeValue || '0' );\n\n\t\t// The command is always enabled for forward indentation.\n\t\treturn this.isForward || currentOffset > 0;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic getNextIndent( indentAttributeValue: string ): string | undefined {\n\t\tconst currentOffset = parseFloat( indentAttributeValue || '0' );\n\t\tconst isSameUnit = !indentAttributeValue || indentAttributeValue.endsWith( this.unit );\n\n\t\tif ( !isSameUnit ) {\n\t\t\treturn this.isForward ? this.offset + this.unit : undefined;\n\t\t}\n\n\t\tconst nextOffset = this.isForward ? this.offset : -this.offset;\n\n\t\tconst offsetToSet = currentOffset + nextOffset;\n\n\t\treturn offsetToSet > 0 ? offsetToSet + this.unit : undefined;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentcommandbehavior/indentusingclasses\n */\n\nimport type { IndentBehavior } from './indentbehavior';\n\n/**\n * The block indentation behavior that uses classes to set indentation.\n */\nexport default class IndentUsingClasses implements IndentBehavior {\n\t/**\n\t * The direction of indentation.\n\t */\n\tpublic isForward: boolean;\n\n\t/**\n\t * A list of classes used for indentation.\n\t */\n\tpublic classes: Array<string>;\n\n\t/**\n\t * Creates an instance of the indentation behavior.\n\t *\n\t * @param config.direction The direction of indentation.\n\t * @param config.classes A list of classes used for indentation.\n\t */\n\tconstructor( config: { direction: 'forward' | 'backward'; classes: Array<string> } ) {\n\t\tthis.isForward = config.direction === 'forward';\n\t\tthis.classes = config.classes!;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic checkEnabled( indentAttributeValue: string ): boolean {\n\t\tconst currentIndex = this.classes.indexOf( indentAttributeValue );\n\n\t\tif ( this.isForward ) {\n\t\t\treturn currentIndex < this.classes.length - 1;\n\t\t} else {\n\t\t\treturn currentIndex >= 0;\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic getNextIndent( indentAttributeValue: string ): string | undefined {\n\t\tconst currentIndex = this.classes.indexOf( indentAttributeValue );\n\t\tconst indexStep = this.isForward ? 1 : -1;\n\n\t\treturn this.classes[ currentIndex + indexStep ];\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indentblock\n */\n\nimport { Plugin, type Editor, type MultiCommand } from 'ckeditor5/src/core';\nimport { addMarginRules, type AttributeDescriptor, type ViewElement } from 'ckeditor5/src/engine';\n\nimport IndentBlockCommand from './indentblockcommand';\nimport IndentUsingOffset from './indentcommandbehavior/indentusingoffset';\nimport IndentUsingClasses from './indentcommandbehavior/indentusingclasses';\nimport type { HeadingOption } from '@ckeditor/ckeditor5-heading';\n\nconst DEFAULT_ELEMENTS = [ 'paragraph', 'heading1', 'heading2', 'heading3', 'heading4', 'heading5', 'heading6' ];\n\n/**\n * The block indentation feature.\n *\n * It registers the `'indentBlock'` and `'outdentBlock'` commands.\n *\n * If the plugin {@link module:indent/indent~Indent} is defined, it also attaches the `'indentBlock'` and `'outdentBlock'` commands to\n * the `'indent'` and `'outdent'` commands.\n */\nexport default class IndentBlock extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\teditor.config.define( 'indentBlock', {\n\t\t\toffset: 40,\n\t\t\tunit: 'px'\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'IndentBlock' {\n\t\treturn 'IndentBlock';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst configuration = editor.config.get( 'indentBlock' )!;\n\n\t\tif ( configuration.classes && configuration.classes.length ) {\n\t\t\tthis._setupConversionUsingClasses( configuration.classes );\n\n\t\t\teditor.commands.add( 'indentBlock', new IndentBlockCommand( editor, new IndentUsingClasses( {\n\t\t\t\tdirection: 'forward',\n\t\t\t\tclasses: configuration.classes\n\t\t\t} ) ) );\n\n\t\t\teditor.commands.add( 'outdentBlock', new IndentBlockCommand( editor, new IndentUsingClasses( {\n\t\t\t\tdirection: 'backward',\n\t\t\t\tclasses: configuration.classes\n\t\t\t} ) ) );\n\t\t} else {\n\t\t\teditor.data.addStyleProcessorRules( addMarginRules );\n\t\t\tthis._setupConversionUsingOffset();\n\n\t\t\teditor.commands.add( 'indentBlock', new IndentBlockCommand( editor, new IndentUsingOffset( {\n\t\t\t\tdirection: 'forward',\n\t\t\t\toffset: configuration.offset!,\n\t\t\t\tunit: configuration.unit!\n\t\t\t} ) ) );\n\n\t\t\teditor.commands.add( 'outdentBlock', new IndentBlockCommand( editor, new IndentUsingOffset( {\n\t\t\t\tdirection: 'backward',\n\t\t\t\toffset: configuration.offset!,\n\t\t\t\tunit: configuration.unit!\n\t\t\t} ) ) );\n\t\t}\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\n\t\tconst indentCommand = editor.commands.get( 'indent' ) as MultiCommand;\n\t\tconst outdentCommand = editor.commands.get( 'outdent' ) as MultiCommand;\n\n\t\t// Enable block indentation to heading configuration options. If it is not defined enable in paragraph and default headings.\n\t\tconst options: Array<HeadingOption> = editor.config.get( 'heading.options' )!;\n\t\tconst configuredElements = options && options.map( option => option.model );\n\t\tconst knownElements = configuredElements || DEFAULT_ELEMENTS;\n\n\t\tknownElements.forEach( elementName => {\n\t\t\tif ( schema.isRegistered( elementName ) ) {\n\t\t\t\tschema.extend( elementName, { allowAttributes: 'blockIndent' } );\n\t\t\t}\n\t\t} );\n\n\t\tschema.setAttributeProperties( 'blockIndent', { isFormatting: true } );\n\n\t\tindentCommand.registerChildCommand( editor.commands.get( 'indentBlock' )! );\n\t\toutdentCommand.registerChildCommand( editor.commands.get( 'outdentBlock' )! );\n\t}\n\n\t/**\n\t * Setups conversion for using offset indents.\n\t */\n\tprivate _setupConversionUsingOffset(): void {\n\t\tconst conversion = this.editor.conversion;\n\t\tconst locale = this.editor.locale;\n\t\tconst marginProperty = locale.contentLanguageDirection === 'rtl' ? 'margin-right' : 'margin-left';\n\n\t\tconversion.for( 'upcast' ).attributeToAttribute( {\n\t\t\tview: {\n\t\t\t\tstyles: {\n\t\t\t\t\t[ marginProperty ]: /[\\s\\S]+/\n\t\t\t\t}\n\t\t\t},\n\t\t\tmodel: {\n\t\t\t\tkey: 'blockIndent',\n\t\t\t\tvalue: ( viewElement: ViewElement ) => viewElement.getStyle( marginProperty )\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'downcast' ).attributeToAttribute( {\n\t\t\tmodel: 'blockIndent',\n\t\t\tview: modelAttributeValue => {\n\t\t\t\treturn {\n\t\t\t\t\tkey: 'style',\n\t\t\t\t\tvalue: {\n\t\t\t\t\t\t[ marginProperty as string ]: modelAttributeValue as string\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Setups conversion for using classes.\n\t */\n\tprivate _setupConversionUsingClasses( classes: Array<string> ) {\n\t\tconst definition: {\n\t\t\tmodel: { key: string; values: Array<string> };\n\t\t\tview: Record<string, AttributeDescriptor>;\n\t\t} = {\n\t\t\tmodel: {\n\t\t\t\tkey: 'blockIndent',\n\t\t\t\tvalues: []\n\t\t\t},\n\t\t\tview: {}\n\t\t};\n\n\t\tfor ( const className of classes ) {\n\t\t\tdefinition.model.values.push( className );\n\t\t\tdefinition.view[ className ] = {\n\t\t\t\tkey: 'class',\n\t\t\t\tvalue: [ className ]\n\t\t\t};\n\t\t}\n\n\t\tthis.editor.conversion.attributeToAttribute( definition );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectallcommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\nimport type { Element, Schema } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The select all command.\n *\n * It is used by the {@link module:select-all/selectallediting~SelectAllEditing select all editing feature} to handle\n * the <kbd>Ctrl/⌘</kbd>+<kbd>A</kbd> keystroke.\n *\n * Executing this command changes the {@glink framework/architecture/editing-engine#model model}\n * selection so it contains the entire content of the editable root of the editor the selection is\n * {@link module:engine/model/selection~Selection#anchor anchored} in.\n *\n * If the selection was anchored in a {@glink framework/tutorials/implementing-a-block-widget nested editable}\n * (e.g. a caption of an image), the new selection will contain its entire content. Successive executions of this command\n * will expand the selection to encompass more and more content up to the entire editable root of the editor.\n */\nexport default class SelectAllCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t// It does not affect data so should be enabled in read-only mode.\n\t\tthis.affectsData = false;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tlet scopeElement: Element | null = model.schema.getLimitElement( selection );\n\n\t\t// If an entire scope is selected, or the selection's ancestor is not a scope yet,\n\t\t// browse through ancestors to find the enclosing parent scope.\n\t\tif ( selection.containsEntireContent( scopeElement ) || !isSelectAllScope( model.schema, scopeElement ) ) {\n\t\t\tdo {\n\t\t\t\tscopeElement = scopeElement.parent as Element | null;\n\n\t\t\t\t// Do nothing, if the entire `root` is already selected.\n\t\t\t\tif ( !scopeElement ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t} while ( !isSelectAllScope( model.schema, scopeElement ) );\n\t\t}\n\n\t\tmodel.change( writer => {\n\t\t\twriter.setSelection( scopeElement!, 'in' );\n\t\t} );\n\t}\n}\n\n/**\n * Checks whether the element is a valid select-all scope. Returns true, if the element is a\n * {@link module:engine/model/schema~Schema#isLimit limit}, and can contain any text or paragraph.\n *\n * @param schema Schema to check against.\n * @param element Model element.\n */\nfunction isSelectAllScope( schema: Schema, element: Element ): boolean {\n\treturn schema.isLimit( element ) && ( schema.checkChild( element, '$text' ) || schema.checkChild( element, 'paragraph' ) );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectallediting\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { getCode, parseKeystroke } from '@ckeditor/ckeditor5-utils';\nimport SelectAllCommand from './selectallcommand';\nimport type { ViewDocumentKeyDownEvent } from '@ckeditor/ckeditor5-engine';\n\nconst SELECT_ALL_KEYSTROKE = parseKeystroke( 'Ctrl+A' );\n\n/**\n * The select all editing feature.\n *\n * It registers the `'selectAll'` {@link module:select-all/selectallcommand~SelectAllCommand command}\n * and the <kbd>Ctrl/⌘</kbd>+<kbd>A</kbd> keystroke listener which executes it.\n */\nexport default class SelectAllEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SelectAllEditing' {\n\t\treturn 'SelectAllEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst view = editor.editing.view;\n\t\tconst viewDocument = view.document;\n\n\t\teditor.commands.add( 'selectAll', new SelectAllCommand( editor ) );\n\n\t\tthis.listenTo<ViewDocumentKeyDownEvent>( viewDocument, 'keydown', ( eventInfo, domEventData ) => {\n\t\t\tif ( getCode( domEventData ) === SELECT_ALL_KEYSTROKE ) {\n\t\t\t\teditor.execute( 'selectAll' );\n\t\t\t\tdomEventData.preventDefault();\n\t\t\t}\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectallui\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { ButtonView } from '@ckeditor/ckeditor5-ui';\n\nimport selectAllIcon from '../theme/icons/select-all.svg';\n\n/**\n * The select all UI feature.\n *\n * It registers the `'selectAll'` UI button in the editor's\n * {@link module:ui/componentfactory~ComponentFactory component factory}. When clicked, the button\n * executes the {@link module:select-all/selectallcommand~SelectAllCommand select all command}.\n */\nexport default class SelectAllUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SelectAllUI' {\n\t\treturn 'SelectAllUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( 'selectAll', locale => {\n\t\t\tconst command = editor.commands.get( 'selectAll' )!;\n\t\t\tconst view = new ButtonView( locale );\n\t\t\tconst t = locale.t;\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Select all' ),\n\t\t\t\ticon: selectAllIcon,\n\t\t\t\tkeystroke: 'Ctrl+A',\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\n\t\t\t// Execute the command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'selectAll' );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" viewBox=\\\"0 0 20 20\\\"><path d=\\\"M.75 15.5a.75.75 0 0 1 .75.75V18l.008.09A.5.5 0 0 0 2 18.5h1.75a.75.75 0 1 1 0 1.5H1.5l-.144-.007a1.5 1.5 0 0 1-1.35-1.349L0 18.5v-2.25a.75.75 0 0 1 .75-.75zm18.5 0a.75.75 0 0 1 .75.75v2.25l-.007.144a1.5 1.5 0 0 1-1.349 1.35L18.5 20h-2.25a.75.75 0 1 1 0-1.5H18a.5.5 0 0 0 .492-.41L18.5 18v-1.75a.75.75 0 0 1 .75-.75zm-10.45 3c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2v-1.1c0-.11.09-.2.2-.2h1.6zm.45-5.5a.75.75 0 1 1 0 1.5h-8.5a.75.75 0 1 1 0-1.5h8.5zM1.3 11c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2v-1.6c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5H4.75a.75.75 0 1 1 0-1.5h10.5zM1.3 7c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2H.2a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm18.5 0c.11 0 .2.09.2.2v1.6a.2.2 0 0 1-.2.2h-1.1a.2.2 0 0 1-.2-.2V7.2c0-.11.09-.2.2-.2h1.1zm-4.55-2a.75.75 0 1 1 0 1.5h-2.5a.75.75 0 1 1 0-1.5h2.5zm-5 0a.75.75 0 1 1 0 1.5h-5.5a.75.75 0 0 1 0-1.5h5.5zm-6.5-5a.75.75 0 0 1 0 1.5H2a.5.5 0 0 0-.492.41L1.5 2v1.75a.75.75 0 0 1-1.5 0V1.5l.007-.144A1.5 1.5 0 0 1 1.356.006L1.5 0h2.25zM18.5 0l.144.007a1.5 1.5 0 0 1 1.35 1.349L20 1.5v2.25a.75.75 0 1 1-1.5 0V2l-.008-.09A.5.5 0 0 0 18 1.5h-1.75a.75.75 0 1 1 0-1.5h2.25zM8.8 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2H7.2a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6zm4 0c.11 0 .2.09.2.2v1.1a.2.2 0 0 1-.2.2h-1.6a.2.2 0 0 1-.2-.2V.2c0-.11.09-.2.2-.2h1.6z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module select-all/selectall\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport SelectAllEditing from './selectallediting';\nimport SelectAllUI from './selectallui';\n\n/**\n * The select all feature.\n *\n * This is a \"glue\" plugin which loads the {@link module:select-all/selectallediting~SelectAllEditing select all editing feature}\n * and the {@link module:select-all/selectallui~SelectAllUI select all UI feature}.\n *\n * Please refer to the documentation of individual features to learn more.\n */\nexport default class SelectAll extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ SelectAllEditing, SelectAllUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'SelectAll' {\n\t\treturn 'SelectAll';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontallinecommand\n */\n\nimport type { DocumentSelection, Element, Model, Schema, Selection } from 'ckeditor5/src/engine';\nimport { Command } from 'ckeditor5/src/core';\nimport { findOptimalInsertionRange } from 'ckeditor5/src/widget';\n\n/**\n * The horizontal line command.\n *\n * The command is registered by {@link module:horizontal-line/horizontallineediting~HorizontalLineEditing} as `'horizontalLine'`.\n *\n * To insert a horizontal line at the current selection, execute the command:\n *\n * ```ts\n * editor.execute( 'horizontalLine' );\n * ```\n */\nexport default class HorizontalLineCommand extends Command {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\t\tconst selection = model.document.selection;\n\n\t\tthis.isEnabled = isHorizontalLineAllowedInParent( selection, schema, model );\n\t}\n\n\t/**\n\t * Executes the command.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\n\t\tmodel.change( writer => {\n\t\t\tconst horizontalElement = writer.createElement( 'horizontalLine' );\n\n\t\t\tmodel.insertObject( horizontalElement, null, null, { setSelection: 'after' } );\n\t\t} );\n\t}\n}\n\n/**\n * Checks if a horizontal line is allowed by the schema in the optimal insertion parent.\n *\n * @param model Model instance.\n */\nfunction isHorizontalLineAllowedInParent( selection: Selection | DocumentSelection, schema: Schema, model: Model ): boolean {\n\tconst parent = getInsertHorizontalLineParent( selection, model );\n\n\treturn schema.checkChild( parent, 'horizontalLine' );\n}\n\n/**\n * Returns a node that will be used to insert a horizontal line with `model.insertContent` to check if the horizontal line can be\n * placed there.\n *\n * @param model Model instance.\n */\nfunction getInsertHorizontalLineParent( selection: Selection | DocumentSelection, model: Model ): Element {\n\tconst insertionRange = findOptimalInsertionRange( selection, model );\n\tconst parent = insertionRange.start.parent;\n\n\tif ( parent.isEmpty && !parent.is( 'element', '$root' ) ) {\n\t\treturn parent.parent! as Element;\n\t}\n\n\treturn parent as Element;\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./horizontalline.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontallineediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { toWidget } from 'ckeditor5/src/widget';\nimport type { DowncastWriter, ViewElement } from 'ckeditor5/src/engine';\n\nimport HorizontalLineCommand from './horizontallinecommand';\n\nimport '../theme/horizontalline.css';\n\n/**\n * The horizontal line editing feature.\n */\nexport default class HorizontalLineEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'HorizontalLineEditing' {\n\t\treturn 'HorizontalLineEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst schema = editor.model.schema;\n\t\tconst t = editor.t;\n\t\tconst conversion = editor.conversion;\n\n\t\tschema.register( 'horizontalLine', {\n\t\t\tinheritAllFrom: '$blockObject'\n\t\t} );\n\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'horizontalLine',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\treturn writer.createEmptyElement( 'hr' );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'editingDowncast' ).elementToStructure( {\n\t\t\tmodel: 'horizontalLine',\n\t\t\tview: ( modelElement, { writer } ) => {\n\t\t\t\tconst label = t( 'Horizontal line' );\n\n\t\t\t\tconst viewWrapper = writer.createContainerElement( 'div', null,\n\t\t\t\t\twriter.createEmptyElement( 'hr' )\n\t\t\t\t);\n\n\t\t\t\twriter.addClass( 'ck-horizontal-line', viewWrapper );\n\t\t\t\twriter.setCustomProperty( 'hr', true, viewWrapper );\n\n\t\t\t\treturn toHorizontalLineWidget( viewWrapper, writer, label );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'upcast' ).elementToElement( { view: 'hr', model: 'horizontalLine' } );\n\n\t\teditor.commands.add( 'horizontalLine', new HorizontalLineCommand( editor ) );\n\t}\n}\n\n/**\n * Converts a given {@link module:engine/view/element~Element} to a horizontal line widget:\n * * Adds a {@link module:engine/view/element~Element#_setCustomProperty custom property} allowing to\n *   recognize the horizontal line widget element.\n * * Calls the {@link module:widget/utils~toWidget} function with the proper element's label creator.\n *\n * @param writer An instance of the view writer.\n */\nfunction toHorizontalLineWidget( viewElement: ViewElement, writer: DowncastWriter, label: string ): ViewElement {\n\twriter.setCustomProperty( 'horizontalLine', true, viewElement );\n\n\treturn toWidget( viewElement, writer, { label } );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontallineui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport type HorizontalLineCommand from './horizontallinecommand';\nimport horizontalLineIcon from '../theme/icons/horizontalline.svg';\n\n/**\n * The horizontal line UI plugin.\n */\nexport default class HorizontalLineUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'HorizontalLineUI' {\n\t\treturn 'HorizontalLineUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// Add the `horizontalLine` button to feature components.\n\t\teditor.ui.componentFactory.add( 'horizontalLine', locale => {\n\t\t\tconst command: HorizontalLineCommand = editor.commands.get( 'horizontalLine' )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Horizontal line' ),\n\t\t\t\ticon: horizontalLineIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\n\t\t\t// Execute the command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( 'horizontalLine' );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M2 9h16v2H2z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/basecommand\n */\n\nimport { Command, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport {\n\ttransformSets,\n\ttype Batch,\n\ttype Operation,\n\ttype DataControllerSetEvent,\n\ttype Range\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * Base class for the undo feature commands: {@link module:undo/undocommand~UndoCommand} and {@link module:undo/redocommand~RedoCommand}.\n */\nexport default abstract class BaseCommand extends Command {\n\t/**\n\t * Stack of items stored by the command. These are pairs of:\n\t *\n\t * * {@link module:engine/model/batch~Batch batch} saved by the command,\n\t * * {@link module:engine/model/selection~Selection selection} state at the moment of saving the batch.\n\t */\n\tprotected _stack: Array<{ batch: Batch; selection: { ranges: Array<Range>; isBackward: boolean } }> = [];\n\n\t/**\n\t * Stores all batches that were created by this command.\n\t *\n\t * @internal\n\t */\n\tpublic _createdBatches = new WeakSet<Batch>();\n\n\t/**\n\t * @inheritDoc\n\t */\n\tconstructor( editor: Editor ) {\n\t\tsuper( editor );\n\n\t\t// Refresh state, so the command is inactive right after initialization.\n\t\tthis.refresh();\n\n\t\t// Set the transparent batch for the `editor.data.set()` call if the\n\t\t// batch type is not set already.\n\t\tthis.listenTo<DataControllerSetEvent>( editor.data, 'set', ( evt, data ) => {\n\t\t\t// Create a shallow copy of the options to not change the original args.\n\t\t\t// And make sure that an object is assigned to data[ 1 ].\n\t\t\tdata[ 1 ] = { ...data[ 1 ] };\n\n\t\t\tconst options = data[ 1 ];\n\n\t\t\t// If batch type is not set, default to non-undoable batch.\n\t\t\tif ( !options.batchType ) {\n\t\t\t\toptions.batchType = { isUndoable: false };\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\n\t\t// Clear the stack for the `transparent` batches.\n\t\tthis.listenTo<DataControllerSetEvent>( editor.data, 'set', ( evt, data ) => {\n\t\t\t// We can assume that the object exists and it has a `batchType` property.\n\t\t\t// It was ensured with a higher priority listener before.\n\t\t\tconst options = data[ 1 ]!;\n\n\t\t\tif ( !options.batchType!.isUndoable ) {\n\t\t\t\tthis.clearStack();\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tthis.isEnabled = this._stack.length > 0;\n\t}\n\n\t/**\n\t * Returns all batches created by this command.\n\t */\n\tpublic get createdBatches(): WeakSet<Batch> {\n\t\treturn this._createdBatches;\n\t}\n\n\t/**\n\t * Stores a batch in the command, together with the selection state of the {@link module:engine/model/document~Document document}\n\t * created by the editor which this command is registered to.\n\t *\n\t * @param batch The batch to add.\n\t */\n\tpublic addBatch( batch: Batch ): void {\n\t\tconst docSelection = this.editor.model.document.selection;\n\n\t\tconst selection = {\n\t\t\tranges: docSelection.hasOwnRange ? Array.from( docSelection.getRanges() ) : [],\n\t\t\tisBackward: docSelection.isBackward\n\t\t};\n\n\t\tthis._stack.push( { batch, selection } );\n\t\tthis.refresh();\n\t}\n\n\t/**\n\t * Removes all items from the stack.\n\t */\n\tpublic clearStack(): void {\n\t\tthis._stack = [];\n\t\tthis.refresh();\n\t}\n\n\t/**\n\t * Restores the {@link module:engine/model/document~Document#selection document selection} state after a batch was undone.\n\t *\n\t * @param ranges Ranges to be restored.\n\t * @param isBackward A flag describing whether the restored range was selected forward or backward.\n\t * @param operations Operations which has been applied since selection has been stored.\n\t */\n\tprotected _restoreSelection(\n\t\tranges: Array<Range>,\n\t\tisBackward: boolean,\n\t\toperations: Array<Operation>\n\t): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\t// This will keep the transformed selection ranges.\n\t\tconst selectionRanges: Array<Range> = [];\n\n\t\t// Transform all ranges from the restored selection.\n\t\tconst transformedRangeGroups = ranges.map( range => range.getTransformedByOperations( operations ) );\n\t\tconst allRanges = transformedRangeGroups.flat();\n\n\t\tfor ( const rangeGroup of transformedRangeGroups ) {\n\t\t\t// While transforming there could appear ranges that are contained by other ranges, we shall ignore them.\n\t\t\tconst transformed = rangeGroup\n\t\t\t\t.filter( range => range.root != document.graveyard )\n\t\t\t\t.filter( range => !isRangeContainedByAnyOtherRange( range, allRanges ) );\n\n\t\t\t// All the transformed ranges ended up in graveyard.\n\t\t\tif ( !transformed.length ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// After the range got transformed, we have an array of ranges. Some of those\n\t\t\t// ranges may be \"touching\" -- they can be next to each other and could be merged.\n\t\t\tnormalizeRanges( transformed );\n\n\t\t\t// For each `range` from `ranges`, we take only one transformed range.\n\t\t\t// This is because we want to prevent situation where single-range selection\n\t\t\t// got transformed to multi-range selection.\n\t\t\tselectionRanges.push( transformed[ 0 ] );\n\t\t}\n\n\t\t// @if CK_DEBUG_ENGINE // console.log( `Restored selection by undo: ${ selectionRanges.join( ', ' ) }` );\n\n\t\t// `selectionRanges` may be empty if all ranges ended up in graveyard. If that is the case, do not restore selection.\n\t\tif ( selectionRanges.length ) {\n\t\t\tmodel.change( writer => {\n\t\t\t\twriter.setSelection( selectionRanges, { backward: isBackward } );\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Undoes a batch by reversing that batch, transforming reversed batch and finally applying it.\n\t * This is a helper method for {@link #execute}.\n\t *\n\t * @param batchToUndo The batch to be undone.\n\t * @param undoingBatch The batch that will contain undoing changes.\n\t */\n\tprotected _undo( batchToUndo: Batch, undoingBatch: Batch ): void {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\t// All changes done by the command execution will be saved as one batch.\n\t\tthis._createdBatches.add( undoingBatch );\n\n\t\tconst operationsToUndo = batchToUndo.operations.slice().filter( operation => operation.isDocumentOperation );\n\t\toperationsToUndo.reverse();\n\n\t\t// We will process each operation from `batchToUndo`, in reverse order. If there were operations A, B and C in undone batch,\n\t\t// we need to revert them in reverse order, so first C' (reversed C), then B', then A'.\n\t\tfor ( const operationToUndo of operationsToUndo ) {\n\t\t\tconst nextBaseVersion = operationToUndo.baseVersion! + 1;\n\t\t\tconst historyOperations = Array.from( document.history.getOperations( nextBaseVersion ) );\n\n\t\t\tconst transformedSets = transformSets(\n\t\t\t\t[ operationToUndo.getReversed() ],\n\t\t\t\thistoryOperations,\n\t\t\t\t{\n\t\t\t\t\tuseRelations: true,\n\t\t\t\t\tdocument: this.editor.model.document,\n\t\t\t\t\tpadWithNoOps: false,\n\t\t\t\t\tforceWeakRemove: true\n\t\t\t\t}\n\t\t\t);\n\n\t\t\tconst reversedOperations = transformedSets.operationsA;\n\n\t\t\t// After reversed operation has been transformed by all history operations, apply it.\n\t\t\tfor ( const operation of reversedOperations ) {\n\t\t\t\t// Before applying, add the operation to the `undoingBatch`.\n\t\t\t\tundoingBatch.addOperation( operation );\n\t\t\t\tmodel.applyOperation( operation );\n\n\t\t\t\tdocument.history.setOperationAsUndone( operationToUndo, operation );\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Normalizes list of ranges by joining intersecting or \"touching\" ranges.\n *\n * @param ranges Ranges to be normalized.\n */\nfunction normalizeRanges( ranges: Array<Range> ): void {\n\tranges.sort( ( a, b ) => a.start.isBefore( b.start ) ? -1 : 1 );\n\n\tfor ( let i = 1; i < ranges.length; i++ ) {\n\t\tconst previousRange = ranges[ i - 1 ];\n\t\tconst joinedRange = previousRange.getJoined( ranges[ i ], true );\n\n\t\tif ( joinedRange ) {\n\t\t\t// Replace the ranges on the list with the new joined range.\n\t\t\ti--;\n\t\t\tranges.splice( i, 2, joinedRange );\n\t\t}\n\t}\n}\n\nfunction isRangeContainedByAnyOtherRange( range: Range, ranges: Array<Range> ): boolean {\n\treturn ranges.some( otherRange => otherRange !== range && otherRange.containsRange( range, true ) );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undocommand\n */\n\nimport BaseCommand from './basecommand';\nimport type { Batch } from '@ckeditor/ckeditor5-engine';\n\n/**\n * The undo command stores {@link module:engine/model/batch~Batch batches} applied to the\n * {@link module:engine/model/document~Document document} and is able to undo a batch by reversing it and transforming by\n * batches from {@link module:engine/model/document~Document#history history} that happened after the reversed batch.\n *\n * The undo command also takes care of restoring the {@link module:engine/model/document~Document#selection document selection}.\n */\nexport default class UndoCommand extends BaseCommand {\n\t/**\n\t * Executes the command. This method reverts a {@link module:engine/model/batch~Batch batch} added to the command's stack, transforms\n\t * and applies the reverted version on the {@link module:engine/model/document~Document document} and removes the batch from the stack.\n\t * Then, it restores the {@link module:engine/model/document~Document#selection document selection}.\n\t *\n\t * @fires execute\n\t * @fires revert\n\t * @param batch A batch that should be undone. If not set, the last added batch will be undone.\n\t */\n\tpublic override execute( batch: Batch | null = null ): void {\n\t\t// If batch is not given, set `batchIndex` to the last index in command stack.\n\t\tconst batchIndex = batch ? this._stack.findIndex( a => a.batch == batch ) : this._stack.length - 1;\n\n\t\tconst item = this._stack.splice( batchIndex, 1 )[ 0 ];\n\t\tconst undoingBatch = this.editor.model.createBatch( { isUndo: true } );\n\n\t\t// All changes have to be done in one `enqueueChange` callback so other listeners will not\n\t\t// step between consecutive operations, or won't do changes to the document before selection is properly restored.\n\t\tthis.editor.model.enqueueChange( undoingBatch, () => {\n\t\t\tthis._undo( item.batch, undoingBatch );\n\n\t\t\tconst operations = this.editor.model.document.history.getOperations( item.batch.baseVersion! );\n\t\t\tthis._restoreSelection( item.selection.ranges, item.selection.isBackward, operations );\n\n\t\t\tthis.fire<UndoCommandRevertEvent>( 'revert', item.batch, undoingBatch );\n\t\t} );\n\n\t\tthis.refresh();\n\t}\n}\n\n/**\n * Fired when execution of the command reverts some batch.\n *\n * @eventName ~UndoCommand#revert\n */\nexport type UndoCommandRevertEvent = {\n\tname: 'revert';\n\targs: [ batch: Batch, undoingBatch: Batch ];\n};\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/redocommand\n */\n\nimport BaseCommand from './basecommand';\n\n/**\n * The redo command stores {@link module:engine/model/batch~Batch batches} that were used to undo a batch by\n * {@link module:undo/undocommand~UndoCommand}. It is able to redo a previously undone batch by reversing the undoing\n * batches created by `UndoCommand`. The reversed batch is transformed by all the batches from\n * {@link module:engine/model/document~Document#history history} that happened after the reversed undo batch.\n *\n * The redo command also takes care of restoring the {@link module:engine/model/document~Document#selection document selection}.\n */\nexport default class RedoCommand extends BaseCommand {\n\t/**\n\t * Executes the command. This method reverts the last {@link module:engine/model/batch~Batch batch} added to\n\t * the command's stack, applies the reverted and transformed version on the\n\t * {@link module:engine/model/document~Document document} and removes the batch from the stack.\n\t * Then, it restores the {@link module:engine/model/document~Document#selection document selection}.\n\t *\n\t * @fires execute\n\t */\n\tpublic override execute(): void {\n\t\tconst item = this._stack.pop()!;\n\t\tconst redoingBatch = this.editor.model.createBatch( { isUndo: true } );\n\n\t\t// All changes have to be done in one `enqueueChange` callback so other listeners will not step between consecutive\n\t\t// operations, or won't do changes to the document before selection is properly restored.\n\t\tthis.editor.model.enqueueChange( redoingBatch, () => {\n\t\t\tconst lastOperation = item.batch.operations[ item.batch.operations.length - 1 ];\n\t\t\tconst nextBaseVersion = lastOperation.baseVersion! + 1;\n\t\t\tconst operations = this.editor.model.document.history.getOperations( nextBaseVersion );\n\n\t\t\tthis._restoreSelection( item.selection.ranges, item.selection.isBackward, operations );\n\t\t\tthis._undo( item.batch, redoingBatch );\n\t\t} );\n\n\t\tthis.refresh();\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undoediting\n */\n\nimport { Plugin, type Editor } from '@ckeditor/ckeditor5-core';\n\nimport UndoCommand, { type UndoCommandRevertEvent } from './undocommand';\nimport RedoCommand from './redocommand';\n\nimport type {\n\tBatch,\n\tModelApplyOperationEvent\n} from '@ckeditor/ckeditor5-engine';\n\n/**\n * The undo engine feature.\n *\n * It introduces the `'undo'` and `'redo'` commands to the editor.\n */\nexport default class UndoEditing extends Plugin {\n\t/**\n\t * The command that manages the undo {@link module:engine/model/batch~Batch batches} stack (history).\n\t * Created and registered during the {@link #init feature initialization}.\n\t */\n\tprivate _undoCommand!: UndoCommand;\n\n\t/**\n\t * The command that manages the redo {@link module:engine/model/batch~Batch batches} stack (history).\n\t * Created and registered during the {@link #init feature initialization}.\n\t */\n\tprivate _redoCommand!: RedoCommand;\n\n\t/**\n\t * Keeps track of which batches were registered in undo.\n\t */\n\tprivate _batchRegistry = new WeakSet<Batch>();\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'UndoEditing' {\n\t\treturn 'UndoEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\t// Create commands.\n\t\tthis._undoCommand = new UndoCommand( editor );\n\t\tthis._redoCommand = new RedoCommand( editor );\n\n\t\t// Register command to the editor.\n\t\teditor.commands.add( 'undo', this._undoCommand );\n\t\teditor.commands.add( 'redo', this._redoCommand );\n\n\t\tthis.listenTo<ModelApplyOperationEvent>( editor.model, 'applyOperation', ( evt, args ) => {\n\t\t\tconst operation = args[ 0 ];\n\n\t\t\t// Do not register batch if the operation is not a document operation.\n\t\t\t// This prevents from creating empty undo steps, where all operations where non-document operations.\n\t\t\t// Non-document operations creates and alters content in detached tree fragments (for example, document fragments).\n\t\t\t// Most of time this is preparing data before it is inserted into actual tree (for example during copy & paste).\n\t\t\t// Such operations should not be reversed.\n\t\t\tif ( !operation.isDocumentOperation ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tconst batch = operation.batch!;\n\n\t\t\tconst isRedoBatch = this._redoCommand.createdBatches.has( batch );\n\t\t\tconst isUndoBatch = this._undoCommand.createdBatches.has( batch );\n\t\t\tconst wasProcessed = this._batchRegistry.has( batch );\n\n\t\t\t// Skip the batch if it was already processed.\n\t\t\tif ( wasProcessed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Add the batch to the registry so it will not be processed again.\n\t\t\tthis._batchRegistry.add( batch );\n\n\t\t\tif ( !batch.isUndoable ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( isRedoBatch ) {\n\t\t\t\t// If this batch comes from `redoCommand`, add it to the `undoCommand` stack.\n\t\t\t\tthis._undoCommand.addBatch( batch );\n\t\t\t} else if ( !isUndoBatch ) {\n\t\t\t\t// If the batch comes neither  from `redoCommand` nor from `undoCommand` then it is a new, regular batch.\n\t\t\t\t// Add the batch to the `undoCommand` stack and clear the `redoCommand` stack.\n\t\t\t\tthis._undoCommand.addBatch( batch );\n\t\t\t\tthis._redoCommand.clearStack();\n\t\t\t}\n\t\t}, { priority: 'highest' } );\n\n\t\tthis.listenTo<UndoCommandRevertEvent>( this._undoCommand, 'revert', ( evt, undoneBatch, undoingBatch ) => {\n\t\t\tthis._redoCommand.addBatch( undoingBatch );\n\t\t} );\n\n\t\teditor.keystrokes.set( 'CTRL+Z', 'undo' );\n\t\teditor.keystrokes.set( 'CTRL+Y', 'redo' );\n\t\teditor.keystrokes.set( 'CTRL+SHIFT+Z', 'redo' );\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m5.042 9.367 2.189 1.837a.75.75 0 0 1-.965 1.149l-3.788-3.18a.747.747 0 0 1-.21-.284.75.75 0 0 1 .17-.945L6.23 4.762a.75.75 0 1 1 .964 1.15L4.863 7.866h8.917A.75.75 0 0 1 14 7.9a4 4 0 1 1-1.477 7.718l.344-1.489a2.5 2.5 0 1 0 1.094-4.73l.008-.032H5.042z\\\"/></svg>\";","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"m14.958 9.367-2.189 1.837a.75.75 0 0 0 .965 1.149l3.788-3.18a.747.747 0 0 0 .21-.284.75.75 0 0 0-.17-.945L13.77 4.762a.75.75 0 1 0-.964 1.15l2.331 1.955H6.22A.75.75 0 0 0 6 7.9a4 4 0 1 0 1.477 7.718l-.344-1.489A2.5 2.5 0 1 1 6.039 9.4l-.008-.032h8.927z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undoui\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport { ButtonView } from '@ckeditor/ckeditor5-ui';\n\nimport undoIcon from '../theme/icons/undo.svg';\nimport redoIcon from '../theme/icons/redo.svg';\n\n/**\n * The undo UI feature. It introduces the `'undo'` and `'redo'` buttons to the editor.\n */\nexport default class UndoUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'UndoUI' {\n\t\treturn 'UndoUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst locale = editor.locale;\n\t\tconst t = editor.t;\n\n\t\tconst localizedUndoIcon = locale.uiLanguageDirection == 'ltr' ? undoIcon : redoIcon;\n\t\tconst localizedRedoIcon = locale.uiLanguageDirection == 'ltr' ? redoIcon : undoIcon;\n\n\t\tthis._addButton( 'undo', t( 'Undo' ), 'CTRL+Z', localizedUndoIcon );\n\t\tthis._addButton( 'redo', t( 'Redo' ), 'CTRL+Y', localizedRedoIcon );\n\t}\n\n\t/**\n\t * Creates a button for the specified command.\n\t *\n\t * @param name Command name.\n\t * @param label Button label.\n\t * @param keystroke Command keystroke.\n\t * @param Icon Source of the icon.\n\t */\n\tprivate _addButton( name: 'undo' | 'redo', label: string, keystroke: string, Icon: string ) {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( name, locale => {\n\t\t\tconst command = editor.commands.get( name )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel,\n\t\t\t\ticon: Icon,\n\t\t\t\tkeystroke,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isEnabled' ).to( command, 'isEnabled' );\n\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( name );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module undo/undo\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport UndoEditing from './undoediting';\nimport UndoUI from './undoui';\n\n/**\n * The undo feature.\n *\n * This is a \"glue\" plugin which loads the {@link module:undo/undoediting~UndoEditing undo editing feature}\n * and the {@link module:undo/undoui~UndoUI undo UI feature}.\n *\n * Below is an explanation of the undo mechanism working together with {@link module:engine/model/history~History History}:\n *\n * Whenever an {@link module:engine/model/operation/operation~Operation operation} is applied to the\n * {@link module:engine/model/document~Document document}, it is saved to `History` as is.\n * The {@link module:engine/model/batch~Batch batch} that owns that operation is also saved, in\n * {@link module:undo/undocommand~UndoCommand}, together with the selection that was present in the document before the\n * operation was applied. A batch is saved instead of the operation because changes are undone batch-by-batch, not operation-by-operation\n * and a batch is seen as one undo step.\n *\n * After changes happen to the document, the `History` and `UndoCommand` stack can be represented as follows:\n *\n * ```\n *    History                            Undo stack\n * ==============             ==================================\n * [operation A1]                      [  batch A  ]\n * [operation B1]                      [  batch B  ]\n * [operation B2]                      [  batch C  ]\n * [operation C1]\n * [operation C2]\n * [operation B3]\n * [operation C3]\n * ```\n *\n * Where operations starting with the same letter are from same batch.\n *\n * Undoing a batch means that a set of operations which will reverse the effects of that batch needs to be generated.\n * For example, if a batch added several letters, undoing the batch should remove them. It is important to apply undoing\n * operations in the reversed order, so if a batch has operation `X`, `Y`, `Z`, reversed operations `Zr`, `Yr` and `Xr`\n * need to be applied. Otherwise reversed operation `Xr` would operate on a wrong document state, because operation `X`\n * does not know that operations `Y` and `Z` happened.\n *\n * After operations from an undone batch got {@link module:engine/model/operation/operation~Operation#getReversed reversed},\n * one needs to make sure if they are ready to be applied. In the scenario above, operation `C3` is the last operation and `C3r`\n * bases on up-to-date document state, so it can be applied to the document.\n *\n * ```\n *      History                             Undo stack\n * =================             ==================================\n * [ operation A1  ]                      [  batch A  ]\n * [ operation B1  ]                      [  batch B  ]\n * [ operation B2  ]             [   processing undoing batch C   ]\n * [ operation C1  ]\n * [ operation C2  ]\n * [ operation B3  ]\n * [ operation C3  ]\n * [ operation C3r ]\n * ```\n *\n * Next is operation `C2`, reversed to `C2r`. `C2r` bases on `C2`, so it bases on the wrong document state. It needs to be\n * transformed by operations from history that happened after it, so it \"knows\" about them. Let us assume that `C2' = C2r * B3 * C3 * C3r`,\n * where `*` means \"transformed by\". Rest of operations from that batch are processed in the same fashion.\n *\n * ```\n *      History                             Undo stack                                      Redo stack\n * =================             ==================================             ==================================\n * [ operation A1  ]                      [  batch A  ]                                    [ batch Cr ]\n * [ operation B1  ]                      [  batch B  ]\n * [ operation B2  ]\n * [ operation C1  ]\n * [ operation C2  ]\n * [ operation B3  ]\n * [ operation C3  ]\n * [ operation C3r ]\n * [ operation C2' ]\n * [ operation C1' ]\n * ```\n *\n * Selective undo works on the same basis, however, instead of undoing the last batch in the undo stack, any batch can be undone.\n * The same algorithm applies: operations from a batch (i.e. `A1`) are reversed and then transformed by operations stored in history.\n *\n * Redo also is very similar to undo. It has its own stack that is filled with undoing (reversed batches). Operations from\n * the batch that is re-done are reversed-back, transformed in proper order and applied to the document.\n *\n * ```\n *      History                             Undo stack                                      Redo stack\n * =================             ==================================             ==================================\n * [ operation A1  ]                      [  batch A  ]\n * [ operation B1  ]                      [  batch B  ]\n * [ operation B2  ]                      [ batch Crr ]\n * [ operation C1  ]\n * [ operation C2  ]\n * [ operation B3  ]\n * [ operation C3  ]\n * [ operation C3r ]\n * [ operation C2' ]\n * [ operation C1' ]\n * [ operation C1'r]\n * [ operation C2'r]\n * [ operation C3rr]\n * ```\n */\nexport default class Undo extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ UndoEditing, UndoUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Undo' {\n\t\treturn 'Undo';\n\t}\n}\n","export default \"<svg viewBox=\\\"0 0 20 20\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><path d=\\\"M8.69 14.915c.053.052.173.083.36.093a.366.366 0 0 1 .345.485l-.003.01a.738.738 0 0 1-.697.497h-2.67a.374.374 0 0 1-.353-.496l.013-.038a.681.681 0 0 1 .644-.458c.197-.012.325-.043.386-.093a.28.28 0 0 0 .072-.11L9.592 4.5H6.269c-.359-.017-.609.013-.75.09-.142.078-.289.265-.442.563-.192.29-.516.464-.864.464H4.17a.43.43 0 0 1-.407-.569L4.46 3h13.08l-.62 2.043a.81.81 0 0 1-.775.574h-.114a.486.486 0 0 1-.486-.486c.001-.284-.054-.464-.167-.54-.112-.076-.367-.106-.766-.091h-3.28l-2.68 10.257c-.006.074.007.127.038.158zM3 17h8a.5.5 0 1 1 0 1H3a.5.5 0 1 1 0-1zm11.299 1.17a.75.75 0 1 1-1.06-1.06l1.414-1.415-1.415-1.414a.75.75 0 0 1 1.06-1.06l1.415 1.414 1.414-1.415a.75.75 0 1 1 1.06 1.06l-1.413 1.415 1.414 1.415a.75.75 0 0 1-1.06 1.06l-1.415-1.414-1.414 1.414z\\\"/></svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformatui\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ButtonView } from 'ckeditor5/src/ui';\n\nimport type RemoveFormatCommand from './removeformatcommand';\n\nimport removeFormatIcon from '../theme/icons/remove-format.svg';\n\nconst REMOVE_FORMAT = 'removeFormat';\n\n/**\n * The remove format UI plugin. It registers the `'removeFormat'` button which can be\n * used in the toolbar.\n */\nexport default class RemoveFormatUI extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'RemoveFormatUI' {\n\t\treturn 'RemoveFormatUI';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\teditor.ui.componentFactory.add( REMOVE_FORMAT, locale => {\n\t\t\tconst command: RemoveFormatCommand = editor.commands.get( REMOVE_FORMAT )!;\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: t( 'Remove Format' ),\n\t\t\t\ticon: removeFormatIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\tview.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute the command.\n\t\t\tthis.listenTo( view, 'execute', () => {\n\t\t\t\teditor.execute( REMOVE_FORMAT );\n\t\t\t\teditor.editing.view.focus();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformatcommand\n */\n\nimport type { DocumentSelection, Item, Schema } from 'ckeditor5/src/engine';\nimport { Command } from 'ckeditor5/src/core';\nimport { first } from 'ckeditor5/src/utils';\n\n/**\n * The remove format command.\n *\n * It is used by the {@link module:remove-format/removeformat~RemoveFormat remove format feature}\n * to clear the formatting in the selection.\n *\n * ```ts\n * editor.execute( 'removeFormat' );\n * ```\n */\nexport default class RemoveFormatCommand extends Command {\n\tdeclare public value: boolean;\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override refresh(): void {\n\t\tconst model = this.editor.model;\n\n\t\tthis.isEnabled = !!first( this._getFormattingItems( model.document.selection, model.schema ) );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic override execute(): void {\n\t\tconst model = this.editor.model;\n\t\tconst schema = model.schema;\n\n\t\tmodel.change( writer => {\n\t\t\tfor ( const item of this._getFormattingItems( model.document.selection, schema ) ) {\n\t\t\t\tif ( item.is( 'selection' ) ) {\n\t\t\t\t\tfor ( const attributeName of this._getFormattingAttributes( item, schema ) ) {\n\t\t\t\t\t\twriter.removeSelectionAttribute( attributeName );\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// Workaround for items with multiple removable attributes. See\n\t\t\t\t\t// https://github.com/ckeditor/ckeditor5-remove-format/pull/1#pullrequestreview-220515609\n\t\t\t\t\tconst itemRange = writer.createRangeOn( item );\n\n\t\t\t\t\tfor ( const attributeName of this._getFormattingAttributes( item, schema ) ) {\n\t\t\t\t\t\twriter.removeAttribute( attributeName, itemRange );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t}\n\n\t/**\n\t * Returns an iterable of items in a selection (including the selection itself) that have formatting model\n\t * attributes to be removed by the feature.\n\t *\n\t * @param schema The schema describing the item.\n\t */\n\tprivate* _getFormattingItems( selection: DocumentSelection, schema: Schema ) {\n\t\tconst itemHasRemovableFormatting = ( item: Item | DocumentSelection ) => {\n\t\t\treturn !!first( this._getFormattingAttributes( item, schema ) );\n\t\t};\n\n\t\t// Check formatting on selected items that are not blocks.\n\t\tfor ( const curRange of selection.getRanges() ) {\n\t\t\tfor ( const item of curRange.getItems() ) {\n\t\t\t\tif ( !schema.isBlock( item ) && itemHasRemovableFormatting( item ) ) {\n\t\t\t\t\tyield item;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Check formatting from selected blocks.\n\t\tfor ( const block of selection.getSelectedBlocks() ) {\n\t\t\tif ( itemHasRemovableFormatting( block ) ) {\n\t\t\t\tyield block;\n\t\t\t}\n\t\t}\n\n\t\t// Finally the selection might be formatted as well, so make sure to check it.\n\t\tif ( itemHasRemovableFormatting( selection ) ) {\n\t\t\tyield selection;\n\t\t}\n\t}\n\n\t/**\n\t * Returns an iterable of formatting attributes of a given model item.\n\t *\n\t * **Note:** Formatting items have the `isFormatting` property set to `true`.\n\t *\n\t * @param schema The schema describing the item.\n\t * @returns The names of formatting attributes found in a given item.\n\t */\n\tprivate* _getFormattingAttributes( item: Item | DocumentSelection, schema: Schema ) {\n\t\tfor ( const [ attributeName ] of item.getAttributes() ) {\n\t\t\tconst attributeProperties = schema.getAttributeProperties( attributeName );\n\n\t\t\tif ( attributeProperties && attributeProperties.isFormatting ) {\n\t\t\t\tyield attributeName;\n\t\t\t}\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformatediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport RemoveFormatCommand from './removeformatcommand';\n\n/**\n * The remove format editing plugin.\n *\n * It registers the {@link module:remove-format/removeformatcommand~RemoveFormatCommand removeFormat} command.\n */\nexport default class RemoveFormatEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'RemoveFormatEditing' {\n\t\treturn 'RemoveFormatEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\n\t\teditor.commands.add( 'removeFormat', new RemoveFormatCommand( editor ) );\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport Command from '@ckeditor/ckeditor5-core/src/command';\n\nexport default class MentionCustomization extends Plugin {\n\tafterInit() {\n\t\tconst editor = this.editor;\n\t\t// override standard mention command (see https://github.com/ckeditor/ckeditor5/issues/6470)\n\t\teditor.commands.add('mention', new CustomMentionCommand(editor));\n\t}\n}\n\nclass CustomMentionCommand extends Command {\n\texecute(options) {\n\t\tconst {model} = this.editor;\n\t\tconst {document} = model;\n\t\tconst {selection} = document;\n\t\tconst {mention} = options;\n\n\t\tconst range = options.range || selection.getFirstRange();\n\n\t\tif (mention.id.startsWith('#') || mention.id.startsWith('~')) {\n\t\t\tmodel.change(writer => {\n\t\t\t\t// Replace a range with the text with a mention.\n\t\t\t\tmodel.insertContent( writer.createText( mention.id, {} ), range );\n\t\t\t});\n\t\t}\n\t\telse if (mention.action === 'create-note') {\n\t\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\tcomponent.createNoteForReferenceLink(mention.noteTitle).then(notePath => {\n\t\t\t\tthis.insertReference(range, notePath);\n\t\t\t});\n\t\t}\n\t\telse {\n\t\t\tthis.insertReference(range, options.mention.notePath);\n\t\t}\n\t}\n\n\tinsertReference(range, notePath) {\n\t\tconst {model} = this.editor;\n\n\t\tmodel.change(writer => {\n\t\t\t// override the selection or at least the beginning @ character\n\t\t\tmodel.insertContent(writer.createText('', {}), range);\n\n\t\t\tthis.editor.execute('referenceLink', {notePath: notePath});\n\t\t});\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport FileRepository from '@ckeditor/ckeditor5-upload/src/filerepository';\n\nexport default class UploadimagePlugin extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tstatic get requires() {\n\t\treturn [ FileRepository ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'UploadimagePlugin';\n\t}\n\n\tinit() {\n\t\tthis.editor.plugins.get('FileRepository').createUploadAdapter = loader => new Adapter(loader);\n\t}\n}\n\nclass Adapter {\n\t/**\n\t * Creates a new adapter instance.\n\t *\n\t * @param {module:upload/filerepository~FileLoader} loader\n\t */\n\tconstructor(loader) {\n\t\t/**\n\t\t * FileLoader instance to use during the upload.\n\t\t *\n\t\t * @member {module:upload/filerepository~FileLoader} #loader\n\t\t */\n\t\tthis.loader = loader;\n\t}\n\n\t/**\n\t * Starts the upload process.\n\t *\n\t * @see module:upload/filerepository~Adapter#upload\n\t * @returns {Promise}\n\t */\n\tupload() {\n\t\treturn this.loader.file\n\t\t\t.then( file => new Promise( ( resolve, reject ) => {\n\t\t\t\tthis._initRequest().then(() => {\n\t\t\t\t\tthis._initListeners( resolve, reject, file );\n\t\t\t\t\tthis._sendRequest( file );\n\t\t\t\t});\n\t\t\t} ) );\n\t}\n\n\t/**\n\t * Aborts the upload process.\n\t *\n\t * @see module:upload/filerepository~Adapter#abort\n\t * @returns {Promise}\n\t */\n\tabort() {\n\t\tif (this.xhr) {\n\t\t\tthis.xhr.abort();\n\t\t}\n\t}\n\n\t/**\n\t * Initializes the XMLHttpRequest object.\n\t *\n\t * @private\n\t */\n\t_initRequest() {\n\t\treturn glob.getHeaders().then(headers => {\n\t\t\tconst xhr = this.xhr = new XMLHttpRequest();\n\n\t\t\tconst {noteId} = glob.getActiveTabNote();\n\n\t\t\t// this must be relative path\n\t\t\tconst url = \"api/images?noteId=\" + noteId;\n\n\t\t\txhr.open('POST', url, true);\n\t\t\txhr.responseType = 'json';\n\n\t\t\tfor (const headerName in headers) {\n\t\t\t\txhr.setRequestHeader(headerName, headers[headerName]);\n\t\t\t}\n\t\t});\n\t}\n\n\t/**\n\t * Initializes XMLHttpRequest listeners.\n\t *\n\t * @private\n\t * @param {Function} resolve Callback function to be called when the request is successful.\n\t * @param {Function} reject Callback function to be called when the request cannot be completed.\n\t */\n\tasync _initListeners(resolve, reject) {\n\t\tconst xhr = this.xhr;\n\t\tconst loader = this.loader;\n\t\tconst file = await loader.file;\n\t\tconst genericError = 'Cannot upload file:' + ` ${file.name}.`;\n\n\t\txhr.addEventListener('error', () => reject(genericError));\n\t\txhr.addEventListener('abort', () => reject());\n\t\txhr.addEventListener('load', () => {\n\t\t\tconst response = xhr.response;\n\n\t\t\tif (!response || !response.uploaded) {\n\t\t\t\treturn reject(response && response.error && response.error.message ? response.error.message : genericError);\n\t\t\t}\n\n\t\t\tresolve({\n\t\t\t\tdefault: response.url\n\t\t\t});\n\t\t});\n\n\t\t// Upload progress when it's supported.\n\t\t/* istanbul ignore else */\n\t\tif (xhr.upload) {\n\t\t\txhr.upload.addEventListener('progress', evt => {\n\t\t\t\tif (evt.lengthComputable) {\n\t\t\t\t\tloader.uploadTotal = evt.total;\n\t\t\t\t\tloader.uploaded = evt.loaded;\n\t\t\t\t}\n\t\t\t});\n\t\t}\n\t}\n\n\t/**\n\t * Prepares the data and sends the request.\n\t *\n\t * @private\n\t */\n\tasync _sendRequest() {\n\t\t// Prepare form data.\n\t\tconst data = new FormData();\n\t\tdata.append('upload', await this.loader.file);\n\n\t\t// Send request.\n\t\tthis.xhr.send(data);\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport {toWidget} from '@ckeditor/ckeditor5-widget/src/utils';\nimport Widget from '@ckeditor/ckeditor5-widget/src/widget';\nimport Command from '@ckeditor/ckeditor5-core/src/command';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\nimport noteIcon from './icons/note.svg';\n\nexport default class IncludeNote extends Plugin {\n\tstatic get requires() {\n\t\treturn [ IncludeNoteEditing, IncludeNoteUI ];\n\t}\n}\n\nclass IncludeNoteUI extends Plugin {\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\n\t\t// The \"includeNote\" button must be registered among the UI components of the editor\n\t\t// to be displayed in the toolbar.\n\t\teditor.ui.componentFactory.add( 'includeNote', locale => {\n\t\t\t// The state of the button will be bound to the widget command.\n\t\t\tconst command = editor.commands.get( 'insertIncludeNote' );\n\n\t\t\t// The button will be an instance of ButtonView.\n\t\t\tconst buttonView = new ButtonView( locale );\n\n\t\t\tbuttonView.set( {\n\t\t\t\t// The t() function helps localize the editor. All strings enclosed in t() can be\n\t\t\t\t// translated and change when the language of the editor changes.\n\t\t\t\tlabel: t( 'Include note' ),\n\t\t\t\ticon: noteIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\t// Bind the state of the button to the command.\n\t\t\tbuttonView.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );\n\n\t\t\t// Execute the command when the button is clicked (executed).\n\t\t\tthis.listenTo( buttonView, 'execute', () => editor.execute( 'insertIncludeNote' ) );\n\n\t\t\treturn buttonView;\n\t\t} );\n\t}\n}\n\nclass IncludeNoteEditing extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Widget ];\n\t}\n\n\tinit() {\n\t\tthis._defineSchema();\n\t\tthis._defineConverters();\n\n\t\tthis.editor.commands.add( 'insertIncludeNote', new InsertIncludeNoteCommand( this.editor ) );\n\t}\n\n\t_defineSchema() {\n\t\tconst schema = this.editor.model.schema;\n\n\t\tschema.register( 'includeNote', {\n\t\t\t// Behaves like a self-contained object (e.g. an image).\n\t\t\tisObject: true,\n\n\t\t\tallowAttributes: [ 'noteId', 'boxSize' ],\n\n\t\t\t// Allow in places where other blocks are allowed (e.g. directly in the root).\n\t\t\tallowWhere: '$block'\n\t\t} );\n\t}\n\n\t_defineConverters() {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\n\t\t// <includeNote> converters\n\t\tconversion.for( 'upcast' ).elementToElement( {\n\t\t\tmodel: ( viewElement, { writer: modelWriter } ) => {\n\n\t\t\t\treturn modelWriter.createElement( 'includeNote', {\n\t\t\t\t\tnoteId: viewElement.getAttribute( 'data-note-id' ),\n\t\t\t\t\tboxSize: viewElement.getAttribute( 'data-box-size' ),\n\t\t\t\t} );\n\t\t\t},\n\t\t\tview: {\n\t\t\t\tname: 'section',\n\t\t\t\tclasses: 'include-note'\n\t\t\t}\n\t\t} );\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'includeNote',\n\t\t\tview: ( modelElement, { writer: viewWriter } ) => {\n\t\t\t\t// it would make sense here to downcast to <iframe>, with this even HTML export can support note inclusion\n\t\t\t\treturn viewWriter.createContainerElement( 'section', {\n\t\t\t\t\tclass: 'include-note',\n\t\t\t\t\t'data-note-id': modelElement.getAttribute( 'noteId' ),\n\t\t\t\t\t'data-box-size': modelElement.getAttribute( 'boxSize' ),\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'includeNote',\n\t\t\tview: ( modelElement, { writer: viewWriter } ) => {\n\n\t\t\t\tconst noteId = modelElement.getAttribute( 'noteId' );\n\t\t\t\tconst boxSize = modelElement.getAttribute( 'boxSize' );\n\n\t\t\t\tconst section = viewWriter.createContainerElement( 'section', {\n\t\t\t\t\tclass: 'include-note box-size-' + boxSize,\n\t\t\t\t\t'data-note-id': noteId,\n\t\t\t\t\t'data-box-size': boxSize\n\t\t\t\t} );\n\n\t\t\t\tconst includedNoteWrapper = viewWriter.createUIElement( 'div', {\n\t\t\t\t\tclass: 'include-note-wrapper'\n\t\t\t\t}, function( domDocument ) {\n\t\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\t\tconst editorEl = editor.editing.view.getDomRoot();\n\t\t\t\t\tconst component = glob.getComponentByEl( editorEl );\n\n\t\t\t\t\tcomponent.loadIncludedNote( noteId, $( domElement ) );\n\n\t\t\t\t\tpreventCKEditorHandling( domElement, editor );\n\n\t\t\t\t\treturn domElement;\n\t\t\t\t} );\n\n\t\t\t\tviewWriter.insert( viewWriter.createPositionAt( section, 0 ), includedNoteWrapper );\n\n\t\t\t\treturn toWidget( section, viewWriter, { label: 'include note widget' } );\n\t\t\t}\n\t\t} );\n\t}\n}\n\nclass InsertIncludeNoteCommand extends Command {\n\texecute() {\n\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\tcomponent.triggerCommand('addIncludeNoteToText');\n\t}\n\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst allowedIn = model.schema.findAllowedParent( selection.getFirstPosition(), 'includeNote' );\n\n\t\tthis.isEnabled = allowedIn !== null;\n\t}\n}\n\n/**\n * Hack coming from https://github.com/ckeditor/ckeditor5/issues/4465\n * Source issue: https://github.com/zadam/trilium/issues/1117\n */\nfunction preventCKEditorHandling( domElement, editor ) {\n\t// Prevent the editor from listening on below events in order to stop rendering selection.\n\n\t// commenting out click events to allow link click handler to still work\n\t//domElement.addEventListener( 'click', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\tdomElement.addEventListener( 'mousedown', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\tdomElement.addEventListener( 'focus', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\n\t// Prevents TAB handling or other editor keys listeners which might be executed on editors selection.\n\tdomElement.addEventListener( 'keydown', stopEventPropagationAndHackRendererFocus, { capture: true } );\n\n\tfunction stopEventPropagationAndHackRendererFocus( evt ) {\n\t\tevt.stopPropagation();\n\t\t// This prevents rendering changed view selection thus preventing to changing DOM selection while inside a widget.\n\t\teditor.editing.view._renderer.isFocused = false;\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"24\\\" height=\\\"24\\\" viewBox=\\\"0 0 24 24\\\"><path d=\\\"M19,3H5C3.897,3,3,3.897,3,5v14c0,1.103,0.897,2,2,2h8c0.131,0,0.26-0.026,0.381-0.076s0.232-0.123,0.326-0.217l7-7 c0.086-0.086,0.147-0.187,0.196-0.293c0.014-0.03,0.022-0.061,0.033-0.093c0.028-0.084,0.046-0.17,0.051-0.259 C20.989,13.041,21,13.021,21,13V5C21,3.897,20.103,3,19,3z M5,5h14v7h-6c-0.553,0-1,0.448-1,1v6H5V5z M14,17.586V14h3.586 L14,17.586z\\\"/></svg>\";","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport { toWidget, viewToModelPositionOutsideModelElement } from '@ckeditor/ckeditor5-widget/src/utils';\nimport Widget from '@ckeditor/ckeditor5-widget/src/widget';\nimport Command from '@ckeditor/ckeditor5-core/src/command';\n\nexport default class ReferenceLink extends Plugin {\n\tstatic get requires() {\n\t\treturn [ ReferenceLinkEditing ];\n\t}\n}\n\nclass ReferenceLinkCommand extends Command {\n\texecute( { notePath } ) {\n\t\tif (!notePath || !notePath.trim()) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\n\t\tconst noteId = notePath.split('/').pop();\n\n\t\t// make sure the referenced note is in cache before adding reference element\n\t\tglob.treeCache.getNote(noteId, true).then(() => {\n\t\t\teditor.model.change(writer => {\n\t\t\t\tconst placeholder = writer.createElement('reference', {notePath: notePath});\n\n\t\t\t\t// ... and insert it into the document.\n\t\t\t\teditor.model.insertContent(placeholder);\n\n\t\t\t\t// Put the selection on the inserted element.\n\t\t\t\twriter.setSelection(placeholder, 'after');\n\t\t\t});\n\t\t});\n\t}\n\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\n\t\tthis.isEnabled = model.schema.checkChild(selection.focus.parent, 'reference');\n\t}\n}\n\nclass ReferenceLinkEditing extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Widget ];\n\t}\n\n\tinit() {\n\t\tthis._defineSchema();\n\t\tthis._defineConverters();\n\n\t\tthis.editor.commands.add( 'referenceLink', new ReferenceLinkCommand( this.editor ) );\n\n\t\tthis.editor.editing.mapper.on(\n\t\t\t'viewToModelPosition',\n\t\t\tviewToModelPositionOutsideModelElement( this.editor.model,\n\t\t\t\t\tviewElement => viewElement.hasClass( 'reference-link' ) )\n\t\t);\n\t}\n\n\t_defineSchema() {\n\t\tconst schema = this.editor.model.schema;\n\n\t\tschema.register( 'reference', {\n\t\t\t// Allow wherever text is allowed:\n\t\t\tallowWhere: '$text',\n\n\t\t\tisInline: true,\n\n\t\t\t// The inline widget is self-contained so it cannot be split by the caret and it can be selected:\n\t\t\tisObject: true,\n\n\t\t\tallowAttributes: [ 'notePath' ]\n\t\t} );\n\t}\n\n\t_defineConverters() {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\n\t\tconversion.for( 'upcast' ).elementToElement( {\n\t\t\tview: {\n\t\t\t\tname: 'a',\n\t\t\t\tclasses: [ 'reference-link' ]\n\t\t\t},\n\t\t\tmodel: ( viewElement, { writer: modelWriter } ) => {\n\t\t\t\tlet notePath = viewElement.getAttribute('data-note-path');\n\n\t\t\t\tif (!notePath) {\n\t\t\t\t\tnotePath = viewElement.getAttribute('href');\n\t\t\t\t}\n\n\t\t\t\treturn modelWriter.createElement( 'reference', { notePath: notePath } );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'editingDowncast' ).elementToElement( {\n\t\t\tmodel: 'reference',\n\t\t\tview: ( modelItem, { writer: viewWriter } ) => {\n\t\t\t\tlet notePath = modelItem.getAttribute( 'notePath' );\n\n\t\t\t\tif (!notePath) {\n\t\t\t\t\tnotePath = modelItem.getAttribute( 'href' );\n\t\t\t\t}\n\n\t\t\t\tconst referenceLinkView = viewWriter.createContainerElement( 'a', {\n\t\t\t\t\t\thref: 'javascript:',\n\t\t\t\t\t\tclass: 'reference-link',\n\t\t\t\t\t\t'data-note-path': notePath\n\t\t\t\t\t},\n\t\t\t\t\t{\n\t\t\t\t\t\trenderUnsafeAttributes: [ 'href' ]\n\t\t\t\t\t} );\n\n\t\t\t\tconst noteTitleView = viewWriter.createUIElement('span', {}, function( domDocument ) {\n\t\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\t\t\t\t\tconst noteId = notePath.split('/').pop();\n\n\t\t\t\t\tconst editorEl = editor.editing.view.getDomRoot();\n\t\t\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\t\t\tcomponent.loadReferenceLinkTitle(noteId, $(domElement));\n\n\t\t\t\t\treturn domElement;\n\t\t\t\t});\n\n\t\t\t\tviewWriter.insert( viewWriter.createPositionAt( referenceLinkView, 0 ), noteTitleView );\n\n\t\t\t\t// Enable widget handling on a reference element inside the editing view.\n\t\t\t\treturn toWidget( referenceLinkView, viewWriter );\n\t\t\t}\n\t\t} );\n\n\t\tconversion.for( 'dataDowncast' ).elementToElement( {\n\t\t\tmodel: 'reference',\n\t\t\tview: ( modelItem, { writer: viewWriter } ) => {\n\t\t\t\tlet notePath = modelItem.getAttribute( 'notePath' );\n\n\t\t\t\tif (!notePath) {\n\t\t\t\t\tnotePath = modelItem.getAttribute( 'href' );\n\t\t\t\t}\n\n\t\t\t\tconst referenceLinkView = viewWriter.createContainerElement( 'a', {\n\t\t\t\t\thref: '#' + notePath,\n\t\t\t\t\tclass: 'reference-link',\n\t\t\t\t\t'data-note-path': notePath\n\t\t\t\t} );\n\n\t\t\t\tconst noteId = notePath.split('/').pop();\n\t\t\t\t// needs to be sync\n\t\t\t\tconst note = glob.treeCache.getNoteFromCache(noteId);\n\n\t\t\t\tif (note) {\n\t\t\t\t\tconst innerText = viewWriter.createText(note.title);\n\t\t\t\t\tviewWriter.insert(viewWriter.createPositionAt(referenceLinkView, 0), innerText);\n\t\t\t\t}\n\n\t\t\t\treturn referenceLinkView;\n\t\t\t}\n\t\t} );\n\t}\n}\n","import { BalloonPanelView } from 'ckeditor5/src/ui';\nimport { global } from 'ckeditor5/src/utils';\n\nexport function getSelectedMathModelWidget( selection ) {\n\tconst selectedElement = selection.getSelectedElement();\n\n\tif ( selectedElement && ( selectedElement.is( 'element', 'mathtex-inline' ) || selectedElement.is( 'element', 'mathtex-display' ) ) ) {\n\t\treturn selectedElement;\n\t}\n\n\treturn null;\n}\n\n// Simple MathJax 3 version check\nexport function isMathJaxVersion3( version ) {\n\treturn version && typeof version === 'string' && version.split( '.' ).length === 3 && version.split( '.' )[ 0 ] === '3';\n}\n\n// Check if equation has delimiters.\nexport function hasDelimiters( text ) {\n\treturn text.match( /^(\\\\\\[.*?\\\\\\]|\\\\\\(.*?\\\\\\))$/ );\n}\n\n// Find delimiters count\nexport function delimitersCounts( text ) {\n\treturn text.match( /(\\\\\\[|\\\\\\]|\\\\\\(|\\\\\\))/g ).length;\n}\n\n// Extract delimiters and figure display mode for the model\nexport function extractDelimiters( equation ) {\n\tequation = equation.trim();\n\n\t// Remove delimiters (e.g. \\( \\) or \\[ \\])\n\tconst hasInlineDelimiters = equation.includes( '\\\\(' ) && equation.includes( '\\\\)' );\n\tconst hasDisplayDelimiters = equation.includes( '\\\\[' ) && equation.includes( '\\\\]' );\n\tif ( hasInlineDelimiters || hasDisplayDelimiters ) {\n\t\tequation = equation.substring( 2, equation.length - 2 ).trim();\n\t}\n\n\treturn {\n\t\tequation,\n\t\tdisplay: hasDisplayDelimiters\n\t};\n}\n\nexport async function renderEquation(\n\tequation, element, engine = 'katex', lazyLoad, display = false, preview = false, previewUid, previewClassName = [],\n\tkatexRenderOptions = {}\n) {\n\tif ( engine === 'mathjax' && typeof MathJax !== 'undefined' ) {\n\t\tif ( isMathJaxVersion3( MathJax.version ) ) {\n\t\t\tselectRenderMode( element, preview, previewUid, previewClassName, el => {\n\t\t\t\trenderMathJax3( equation, el, display, () => {\n\t\t\t\t\tif ( preview ) {\n\t\t\t\t\t\tmoveAndScaleElement( element, el );\n\t\t\t\t\t\tel.style.visibility = 'visible';\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t} );\n\t\t} else {\n\t\t\tselectRenderMode( element, preview, previewUid, previewClassName, el => {\n\t\t\t\t// Fixme: MathJax typesetting cause occasionally math processing error without asynchronous call\n\t\t\t\tglobal.window.setTimeout( () => {\n\t\t\t\t\trenderMathJax2( equation, el, display );\n\n\t\t\t\t\t// Move and scale after rendering\n\t\t\t\t\tif ( preview ) {\n\t\t\t\t\t\t// eslint-disable-next-line\n\t\t\t\t\t\tMathJax.Hub.Queue( () => {\n\t\t\t\t\t\t\tmoveAndScaleElement( element, el );\n\t\t\t\t\t\t\tel.style.visibility = 'visible';\n\t\t\t\t\t\t} );\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t} );\n\t\t}\n\t} else if ( engine === 'katex' && typeof katex !== 'undefined' ) {\n\t\tselectRenderMode( element, preview, previewUid, previewClassName, el => {\n\t\t\tkatex.render( equation, el, {\n\t\t\t\tthrowOnError: false,\n\t\t\t\tdisplayMode: display,\n\t\t\t\t...katexRenderOptions\n\t\t\t} );\n\t\t\tif ( preview ) {\n\t\t\t\tmoveAndScaleElement( element, el );\n\t\t\t\tel.style.visibility = 'visible';\n\t\t\t}\n\t\t} );\n\t} else if ( typeof engine === 'function' ) {\n\t\tengine( equation, element, display );\n\t} else {\n\t\tif ( typeof lazyLoad !== 'undefined' ) {\n\t\t\ttry {\n\t\t\t\tif ( !global.window.CKEDITOR_MATH_LAZY_LOAD ) {\n\t\t\t\t\tglobal.window.CKEDITOR_MATH_LAZY_LOAD = lazyLoad();\n\t\t\t\t}\n\t\t\t\telement.innerHTML = equation;\n\t\t\t\tawait global.window.CKEDITOR_MATH_LAZY_LOAD;\n\t\t\t\trenderEquation( equation, element, engine, undefined, display, preview, previewUid, previewClassName, katexRenderOptions );\n\t\t\t}\n\t\t\tcatch ( err ) {\n\t\t\t\telement.innerHTML = equation;\n\t\t\t\tconsole.error( `math-tex-typesetting-lazy-load-failed: Lazy load failed: ${ err }` );\n\t\t\t}\n\t\t} else {\n\t\t\telement.innerHTML = equation;\n\t\t\tconsole.warn( `math-tex-typesetting-missing: Missing the mathematical typesetting engine (${ engine }) for tex.` );\n\t\t}\n\t}\n}\n\nexport function getBalloonPositionData( editor ) {\n\tconst view = editor.editing.view;\n\tconst defaultPositions = BalloonPanelView.defaultPositions;\n\n\tconst selectedElement = view.document.selection.getSelectedElement();\n\tif ( selectedElement ) {\n\t\treturn {\n\t\t\ttarget: view.domConverter.viewToDom( selectedElement ),\n\t\t\tpositions: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\t\tdefaultPositions.southArrowNorthEast\n\t\t\t]\n\t\t};\n\t}\n\telse {\n\t\tconst viewDocument = view.document;\n\t\treturn {\n\t\t\ttarget: view.domConverter.viewRangeToDom( viewDocument.selection.getFirstRange() ),\n\t\t\tpositions: [\n\t\t\t\tdefaultPositions.southArrowNorth,\n\t\t\t\tdefaultPositions.southArrowNorthWest,\n\t\t\t\tdefaultPositions.southArrowNorthEast\n\t\t\t]\n\t\t};\n\t}\n}\n\nfunction selectRenderMode( element, preview, previewUid, previewClassName, cb ) {\n\tif ( preview ) {\n\t\tcreatePreviewElement( element, previewUid, previewClassName, previewEl => {\n\t\t\tcb( previewEl );\n\t\t} );\n\t} else {\n\t\tcb( element );\n\t}\n}\n\nfunction renderMathJax3( equation, element, display, cb ) {\n\tlet promiseFunction = undefined;\n\tif ( typeof MathJax.tex2chtmlPromise !== 'undefined' ) {\n\t\tpromiseFunction = MathJax.tex2chtmlPromise;\n\t} else if ( typeof MathJax.tex2svgPromise !== 'undefined' ) {\n\t\tpromiseFunction = MathJax.tex2svgPromise;\n\t}\n\n\tif ( typeof promiseFunction !== 'undefined' ) {\n\t\tpromiseFunction( equation, { display } ).then( node => {\n\t\t\tif ( element.firstChild ) {\n\t\t\t\telement.removeChild( element.firstChild );\n\t\t\t}\n\t\t\telement.appendChild( node );\n\t\t\tcb();\n\t\t} );\n\t}\n}\n\nfunction renderMathJax2( equation, element, display ) {\n\tif ( display ) {\n\t\telement.innerHTML = '\\\\[' + equation + '\\\\]';\n\t} else {\n\t\telement.innerHTML = '\\\\(' + equation + '\\\\)';\n\t}\n\t// eslint-disable-next-line\n\tMathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, element ] );\n}\n\nfunction createPreviewElement( element, previewUid, previewClassName, render ) {\n\tconst previewEl = getPreviewElement( element, previewUid, previewClassName );\n\trender( previewEl );\n}\n\nfunction getPreviewElement( element, previewUid, previewClassName ) {\n\tlet previewEl = global.document.getElementById( previewUid );\n\t// Create if not found\n\tif ( !previewEl ) {\n\t\tpreviewEl = global.document.createElement( 'div' );\n\t\tpreviewEl.setAttribute( 'id', previewUid );\n\t\tpreviewEl.classList.add( ...previewClassName );\n\t\tpreviewEl.style.visibility = 'hidden';\n\t\tglobal.document.body.appendChild( previewEl );\n\n\t\tlet ticking = false;\n\n\t\tconst renderTransformation = () => {\n\t\t\tif ( !ticking ) {\n\t\t\t\tglobal.window.requestAnimationFrame( () => {\n\t\t\t\t\tmoveElement( element, previewEl );\n\t\t\t\t\tticking = false;\n\t\t\t\t} );\n\n\t\t\t\tticking = true;\n\t\t\t}\n\t\t};\n\n\t\t// Create scroll listener for following\n\t\tglobal.window.addEventListener( 'resize', renderTransformation );\n\t\tglobal.window.addEventListener( 'scroll', renderTransformation );\n\t}\n\treturn previewEl;\n}\n\nfunction moveAndScaleElement( parent, child ) {\n\t// Move to right place\n\tmoveElement( parent, child );\n\n\t// Scale parent element same as preview\n\tconst domRect = child.getBoundingClientRect();\n\tparent.style.width = domRect.width + 'px';\n\tparent.style.height = domRect.height + 'px';\n}\n\nfunction moveElement( parent, child ) {\n\tconst domRect = parent.getBoundingClientRect();\n\tconst left = global.window.scrollX + domRect.left;\n\tconst top = global.window.scrollY + domRect.top;\n\tchild.style.position = 'absolute';\n\tchild.style.left = left + 'px';\n\tchild.style.top = top + 'px';\n\tchild.style.zIndex = 'var(--ck-z-modal)';\n\tchild.style.pointerEvents = 'none';\n}\n","import { Command } from 'ckeditor5/src/core';\nimport { getSelectedMathModelWidget } from './utils';\n\nexport default class MathCommand extends Command {\n\texecute( equation, display, outputType, forceOutputType ) {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tmodel.change( writer => {\n\t\t\tlet mathtex;\n\t\t\tif ( selectedElement && ( selectedElement.is( 'element', 'mathtex-inline' ) ||\n\t\t\t\t\tselectedElement.is( 'element', 'mathtex-display' ) ) ) {\n\t\t\t\t// Update selected element\n\t\t\t\tconst typeAttr = selectedElement.getAttribute( 'type' );\n\n\t\t\t\t// Use already set type if found and is not forced\n\t\t\t\tconst type = forceOutputType ? outputType : typeAttr || outputType;\n\n\t\t\t\tmathtex = writer.createElement( display ? 'mathtex-display' : 'mathtex-inline', { equation, type, display } );\n\t\t\t} else {\n\t\t\t\t// Create new model element\n\t\t\t\tmathtex = writer.createElement( display ? 'mathtex-display' : 'mathtex-inline', { equation, type: outputType, display } );\n\t\t\t}\n\t\t\tmodel.insertContent( mathtex );\n\t\t} );\n\t}\n\n\trefresh() {\n\t\tconst model = this.editor.model;\n\t\tconst selection = model.document.selection;\n\t\tconst selectedElement = selection.getSelectedElement();\n\n\t\tthis.isEnabled = selectedElement === null || ( selectedElement.is( 'element', 'mathtex-inline' ) ||\n\t\t\t\tselectedElement.is( 'element', 'mathtex-display' ) );\n\n\t\tconst selectedEquation = getSelectedMathModelWidget( selection );\n\t\tthis.value = selectedEquation ? selectedEquation.getAttribute( 'equation' ) : null;\n\t\tthis.display = selectedEquation ? selectedEquation.getAttribute( 'display' ) : null;\n\t}\n}\n","import MathCommand from './mathcommand';\nimport { Plugin } from 'ckeditor5/src/core';\nimport { toWidget, Widget, viewToModelPositionOutsideModelElement } from 'ckeditor5/src/widget';\nimport { renderEquation, extractDelimiters } from './utils';\n\nexport default class MathEditing extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Widget ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'MathEditing';\n\t}\n\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\t\teditor.config.define( 'math', {\n\t\t\tengine: 'mathjax',\n\t\t\toutputType: 'script',\n\t\t\tclassName: 'math-tex',\n\t\t\tforceOutputType: false,\n\t\t\tenablePreview: true,\n\t\t\tpreviewClassName: [],\n\t\t\tpopupClassName: [],\n\t\t\tkatexRenderOptions: {}\n\t\t} );\n\t}\n\n\tinit() {\n\t\tconst editor = this.editor;\n\t\teditor.commands.add( 'math', new MathCommand( editor ) );\n\n\t\tthis._defineSchema();\n\t\tthis._defineConverters();\n\n\t\teditor.editing.mapper.on(\n\t\t\t'viewToModelPosition',\n\t\t\tviewToModelPositionOutsideModelElement( editor.model, viewElement => viewElement.hasClass( 'math' ) )\n\t\t);\n\t}\n\n\t_defineSchema() {\n\t\tconst schema = this.editor.model.schema;\n\t\tschema.register( 'mathtex-inline', {\n\t\t\tallowWhere: '$text',\n\t\t\tisInline: true,\n\t\t\tisObject: true,\n\t\t\tallowAttributes: [ 'equation', 'type', 'display' ]\n\t\t} );\n\n\t\tschema.register( 'mathtex-display', {\n\t\t\tallowWhere: '$block',\n\t\t\tisInline: false,\n\t\t\tisObject: true,\n\t\t\tallowAttributes: [ 'equation', 'type', 'display' ]\n\t\t} );\n\t}\n\n\t_defineConverters() {\n\t\tconst conversion = this.editor.conversion;\n\t\tconst mathConfig = this.editor.config.get( 'math' );\n\n\t\t// View -> Model\n\t\tconversion.for( 'upcast' )\n\t\t\t// MathJax inline way (e.g. <script type=\"math/tex\">\\sqrt{\\frac{a}{b}}</script>)\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'script',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\ttype: 'math/tex'\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getChild( 0 ).data.trim();\n\t\t\t\t\treturn writer.createElement( 'mathtex-inline', {\n\t\t\t\t\t\tequation,\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'script',\n\t\t\t\t\t\tdisplay: false\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t// MathJax display way (e.g. <script type=\"math/tex; mode=display\">\\sqrt{\\frac{a}{b}}</script>)\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'script',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\ttype: 'math/tex; mode=display'\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getChild( 0 ).data.trim();\n\t\t\t\t\treturn writer.createElement( 'mathtex-display', {\n\t\t\t\t\t\tequation,\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'script',\n\t\t\t\t\t\tdisplay: true\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t// CKEditor 4 way (e.g. <span class=\"math-tex\">\\( \\sqrt{\\frac{a}{b}} \\)</span>)\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ mathConfig.className ]\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getChild( 0 ).data.trim();\n\n\t\t\t\t\tconst params = Object.assign( extractDelimiters( equation ), {\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'span'\n\t\t\t\t\t} );\n\n\t\t\t\t\treturn writer.createElement( params.display ? 'mathtex-display' : 'mathtex-inline', params );\n\t\t\t\t}\n\t\t\t} )\n\t\t\t// KaTeX from Quill: https://github.com/quilljs/quill/blob/develop/formats/formula.js\n\t\t\t.elementToElement( {\n\t\t\t\tview: {\n\t\t\t\t\tname: 'span',\n\t\t\t\t\tclasses: [ 'ql-formula' ]\n\t\t\t\t},\n\t\t\t\tmodel: ( viewElement, { writer } ) => {\n\t\t\t\t\tconst equation = viewElement.getAttribute( 'data-value' ).trim();\n\t\t\t\t\treturn writer.createElement( 'mathtex-inline', {\n\t\t\t\t\t\tequation,\n\t\t\t\t\t\ttype: mathConfig.forceOutputType ? mathConfig.outputType : 'script',\n\t\t\t\t\t\tdisplay: false\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t// Model -> View (element)\n\t\tconversion.for( 'editingDowncast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'mathtex-inline',\n\t\t\t\tview: ( modelItem, { writer } ) => {\n\t\t\t\t\tconst widgetElement = createMathtexEditingView( modelItem, writer );\n\t\t\t\t\treturn toWidget( widgetElement, writer, 'span' );\n\t\t\t\t}\n\t\t\t} ).elementToElement( {\n\t\t\t\tmodel: 'mathtex-display',\n\t\t\t\tview: ( modelItem, { writer } ) => {\n\t\t\t\t\tconst widgetElement = createMathtexEditingView( modelItem, writer );\n\t\t\t\t\treturn toWidget( widgetElement, writer, 'div' );\n\t\t\t\t}\n\t\t\t} );\n\n\t\t// Model -> Data\n\t\tconversion.for( 'dataDowncast' )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'mathtex-inline',\n\t\t\t\tview: createMathtexView\n\t\t\t} )\n\t\t\t.elementToElement( {\n\t\t\t\tmodel: 'mathtex-display',\n\t\t\t\tview: createMathtexView\n\t\t\t} );\n\n\t\t// Create view for editor\n\t\tfunction createMathtexEditingView( modelItem, writer ) {\n\t\t\tconst equation = modelItem.getAttribute( 'equation' );\n\t\t\tconst display = modelItem.getAttribute( 'display' );\n\n\t\t\tconst styles = 'user-select: none; ' + ( display ? '' : 'display: inline-block;' );\n\t\t\tconst classes = 'ck-math-tex ' + ( display ? 'ck-math-tex-display' : 'ck-math-tex-inline' );\n\n\t\t\tconst mathtexView = writer.createContainerElement( display ? 'div' : 'span', {\n\t\t\t\tstyle: styles,\n\t\t\t\tclass: classes\n\t\t\t} );\n\n\t\t\tconst uiElement = writer.createUIElement( 'div', null, function( domDocument ) {\n\t\t\t\tconst domElement = this.toDomElement( domDocument );\n\n\t\t\t\trenderEquation( equation, domElement, mathConfig.engine, mathConfig.lazyLoad, display, false, mathConfig.previewClassName,\n\t\t\t\t\tnull, mathConfig.katexRenderOptions );\n\n\t\t\t\treturn domElement;\n\t\t\t} );\n\n\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), uiElement );\n\n\t\t\treturn mathtexView;\n\t\t}\n\n\t\t// Create view for data\n\t\tfunction createMathtexView( modelItem, { writer } ) {\n\t\t\tconst equation = modelItem.getAttribute( 'equation' );\n\t\t\tconst type = modelItem.getAttribute( 'type' );\n\t\t\tconst display = modelItem.getAttribute( 'display' );\n\n\t\t\tif ( type === 'span' ) {\n\t\t\t\tconst mathtexView = writer.createContainerElement( 'span', {\n\t\t\t\t\tclass: mathConfig.className\n\t\t\t\t} );\n\n\t\t\t\tif ( display ) {\n\t\t\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), writer.createText( '\\\\[' + equation + '\\\\]' ) );\n\t\t\t\t} else {\n\t\t\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), writer.createText( '\\\\(' + equation + '\\\\)' ) );\n\t\t\t\t}\n\n\t\t\t\treturn mathtexView;\n\t\t\t} else {\n\t\t\t\tconst mathtexView = writer.createContainerElement( 'script', {\n\t\t\t\t\ttype: display ? 'math/tex; mode=display' : 'math/tex'\n\t\t\t\t} );\n\n\t\t\t\twriter.insert( writer.createPositionAt( mathtexView, 0 ), writer.createText( equation ) );\n\n\t\t\t\treturn mathtexView;\n\t\t\t}\n\t\t}\n\t}\n}\n","import { View } from 'ckeditor5/src/ui';\nimport { renderEquation } from '../utils';\n\nexport default class MathView extends View {\n\tconstructor( engine, lazyLoad, locale, previewUid, previewClassName, katexRenderOptions ) {\n\t\tsuper( locale );\n\n\t\tthis.engine = engine;\n\t\tthis.lazyLoad = lazyLoad;\n\t\tthis.previewUid = previewUid;\n\t\tthis.katexRenderOptions = katexRenderOptions;\n\t\tthis.previewClassName = previewClassName;\n\n\t\tthis.set( 'value', '' );\n\t\tthis.set( 'display', false );\n\n\t\tthis.on( 'change', () => {\n\t\t\tif ( this.isRendered ) {\n\t\t\t\tthis.updateMath();\n\t\t\t}\n\t\t} );\n\n\t\tthis.setTemplate( {\n\t\t\ttag: 'div',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-math-preview'\n\t\t\t\t]\n\t\t\t}\n\t\t} );\n\t}\n\n\tupdateMath() {\n\t\trenderEquation( this.value, this.element, this.engine, this.lazyLoad, this.display, true, this.previewUid, this.previewClassName,\n\t\t\tthis.katexRenderOptions );\n\t}\n\n\trender() {\n\t\tsuper.render();\n\t\tthis.updateMath();\n\t}\n}\n","import api from \"!../../style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../css-loader/dist/cjs.js!../../postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./mathform.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","import { icons } from 'ckeditor5/src/core';\nimport {\n\tButtonView, createLabeledInputText, FocusCycler, LabelView, LabeledFieldView,\n\tsubmitHandler, SwitchButtonView, View, ViewCollection\n} from 'ckeditor5/src/ui';\nimport { FocusTracker, KeystrokeHandler } from 'ckeditor5/src/utils';\nimport { extractDelimiters, hasDelimiters } from '../utils';\nimport MathView from './mathview';\nimport '../../theme/mathform.css';\n\nconst { check: checkIcon, cancel: cancelIcon } = icons;\n\nexport default class MainFormView extends View {\n\tconstructor( locale, engine, lazyLoad, previewEnabled, previewUid, previewClassName, popupClassName, katexRenderOptions ) {\n\t\tsuper( locale );\n\n\t\tconst t = locale.t;\n\n\t\t// Create key event & focus trackers\n\t\tthis._createKeyAndFocusTrackers();\n\n\t\t// Submit button\n\t\tthis.saveButtonView = this._createButton( t( 'Save' ), checkIcon, 'ck-button-save', null );\n\t\tthis.saveButtonView.type = 'submit';\n\n\t\t// Equation input\n\t\tthis.mathInputView = this._createMathInput();\n\n\t\t// Display button\n\t\tthis.displayButtonView = this._createDisplayButton();\n\n\t\t// Cancel button\n\t\tthis.cancelButtonView = this._createButton( t( 'Cancel' ), cancelIcon, 'ck-button-cancel', 'cancel' );\n\n\t\tthis.previewEnabled = previewEnabled;\n\n\t\tlet children = [];\n\t\tif ( this.previewEnabled ) {\n\t\t\t// Preview label\n\t\t\tthis.previewLabel = new LabelView( locale );\n\t\t\tthis.previewLabel.text = t( 'Equation preview' );\n\n\t\t\t// Math element\n\t\t\tthis.mathView = new MathView( engine, lazyLoad, locale, previewUid, previewClassName, katexRenderOptions );\n\t\t\tthis.mathView.bind( 'display' ).to( this.displayButtonView, 'isOn' );\n\n\t\t\tchildren = [\n\t\t\t\tthis.mathInputView,\n\t\t\t\tthis.displayButtonView,\n\t\t\t\tthis.previewLabel,\n\t\t\t\tthis.mathView\n\t\t\t];\n\t\t} else {\n\t\t\tchildren = [\n\t\t\t\tthis.mathInputView,\n\t\t\t\tthis.displayButtonView\n\t\t\t];\n\t\t}\n\n\t\t// Add UI elements to template\n\t\tthis.setTemplate( {\n\t\t\ttag: 'form',\n\t\t\tattributes: {\n\t\t\t\tclass: [\n\t\t\t\t\t'ck',\n\t\t\t\t\t'ck-math-form',\n\t\t\t\t\t...popupClassName\n\t\t\t\t],\n\t\t\t\ttabindex: '-1',\n\t\t\t\tspellcheck: 'false'\n\t\t\t},\n\t\t\tchildren: [\n\t\t\t\t{\n\t\t\t\t\ttag: 'div',\n\t\t\t\t\tattributes: {\n\t\t\t\t\t\tclass: [\n\t\t\t\t\t\t\t'ck-math-view'\n\t\t\t\t\t\t]\n\t\t\t\t\t},\n\t\t\t\t\tchildren\n\t\t\t\t},\n\t\t\t\tthis.saveButtonView,\n\t\t\t\tthis.cancelButtonView\n\t\t\t]\n\t\t} );\n\t}\n\n\trender() {\n\t\tsuper.render();\n\n\t\t// Prevent default form submit event & trigger custom 'submit'\n\t\tsubmitHandler( {\n\t\t\tview: this\n\t\t} );\n\n\t\t// Register form elements to focusable elements\n\t\tconst childViews = [\n\t\t\tthis.mathInputView,\n\t\t\tthis.displayButtonView,\n\t\t\tthis.saveButtonView,\n\t\t\tthis.cancelButtonView\n\t\t];\n\n\t\tchildViews.forEach( v => {\n\t\t\tthis._focusables.add( v );\n\t\t\tthis.focusTracker.add( v.element );\n\t\t} );\n\n\t\t// Listen to keypresses inside form element\n\t\tthis.keystrokes.listenTo( this.element );\n\t}\n\n\tfocus() {\n\t\tthis._focusCycler.focusFirst();\n\t}\n\n\tget equation() {\n\t\treturn this.mathInputView.fieldView.element.value;\n\t}\n\n\tset equation( equation ) {\n\t\tthis.mathInputView.fieldView.element.value = equation;\n\t\tif ( this.previewEnabled ) {\n\t\t\tthis.mathView.value = equation;\n\t\t}\n\t}\n\n\t_createKeyAndFocusTrackers() {\n\t\tthis.focusTracker = new FocusTracker();\n\t\tthis.keystrokes = new KeystrokeHandler();\n\t\tthis._focusables = new ViewCollection();\n\n\t\tthis._focusCycler = new FocusCycler( {\n\t\t\tfocusables: this._focusables,\n\t\t\tfocusTracker: this.focusTracker,\n\t\t\tkeystrokeHandler: this.keystrokes,\n\t\t\tactions: {\n\t\t\t\tfocusPrevious: 'shift + tab',\n\t\t\t\tfocusNext: 'tab'\n\t\t\t}\n\t\t} );\n\t}\n\n\t_createMathInput() {\n\t\tconst t = this.locale.t;\n\n\t\t// Create equation input\n\t\tconst mathInput = new LabeledFieldView( this.locale, createLabeledInputText );\n\t\tconst fieldView = mathInput.fieldView;\n\t\tmathInput.infoText = t( 'Insert equation in TeX format.' );\n\n\t\tconst onInput = () => {\n\t\t\tif ( fieldView.element != null ) {\n\t\t\t\tlet equationInput = fieldView.element.value.trim();\n\n\t\t\t\t// If input has delimiters\n\t\t\t\tif ( hasDelimiters( equationInput ) ) {\n\t\t\t\t\t// Get equation without delimiters\n\t\t\t\t\tconst params = extractDelimiters( equationInput );\n\n\t\t\t\t\t// Remove delimiters from input field\n\t\t\t\t\tfieldView.element.value = params.equation;\n\n\t\t\t\t\tequationInput = params.equation;\n\n\t\t\t\t\t// update display button and preview\n\t\t\t\t\tthis.displayButtonView.isOn = params.display;\n\t\t\t\t}\n\t\t\t\tif ( this.previewEnabled ) {\n\t\t\t\t\t// Update preview view\n\t\t\t\t\tthis.mathView.value = equationInput;\n\t\t\t\t}\n\n\t\t\t\tthis.saveButtonView.isEnabled = !!equationInput;\n\t\t\t}\n\t\t};\n\n\t\tfieldView.on( 'render', onInput );\n\t\tfieldView.on( 'input', onInput );\n\n\t\treturn mathInput;\n\t}\n\n\t_createButton( label, icon, className, eventName ) {\n\t\tconst button = new ButtonView( this.locale );\n\n\t\tbutton.set( {\n\t\t\tlabel,\n\t\t\ticon,\n\t\t\ttooltip: true\n\t\t} );\n\n\t\tbutton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: className\n\t\t\t}\n\t\t} );\n\n\t\tif ( eventName ) {\n\t\t\tbutton.delegate( 'execute' ).to( this, eventName );\n\t\t}\n\n\t\treturn button;\n\t}\n\n\t_createDisplayButton() {\n\t\tconst t = this.locale.t;\n\n\t\tconst switchButton = new SwitchButtonView( this.locale );\n\n\t\tswitchButton.set( {\n\t\t\tlabel: t( 'Display mode' ),\n\t\t\twithText: true\n\t\t} );\n\n\t\tswitchButton.extendTemplate( {\n\t\t\tattributes: {\n\t\t\t\tclass: 'ck-button-display-toggle'\n\t\t\t}\n\t\t} );\n\n\t\tswitchButton.on( 'execute', () => {\n\t\t\t// Toggle state\n\t\t\tswitchButton.isOn = !switchButton.isOn;\n\n\t\t\tif ( this.previewEnabled ) {\n\t\t\t\t// Update preview view\n\t\t\t\tthis.mathView.display = switchButton.isOn;\n\t\t\t}\n\t\t} );\n\n\t\treturn switchButton;\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" viewBox=\\\"0 0 15.44 10.78\\\" height=\\\"40.74\\\" width=\\\"58.35\\\"><path d=\\\"M8.15 0c-.06 0-.1.02-.11.03a.12.12 0 0 0-.02.01 6.81 6.81 0 0 0-2.32 4.9v.9a6.82 6.82 0 0 0 2.32 4.9.12.12 0 0 0 .02 0c.02.02.06.04.11.04.07 0 .12-.03.16-.07a.22.22 0 0 0 0-.32.12.12 0 0 0-.02-.02A4.4 4.4 0 0 1 7 8.44a7.62 7.62 0 0 1-.5-2.6v-.9c0-.82.19-1.76.5-2.6A4.4 4.4 0 0 1 8.3.42.12.12 0 0 0 8.3.39a.22.22 0 0 0 .08-.16.22.22 0 0 0-.07-.16.22.22 0 0 0-.16-.07zm4.83 0a.22.22 0 0 0-.16.07.22.22 0 0 0-.07.16c0 .08.05.13.08.16a.12.12 0 0 0 .01.02c.52.39.98 1.1 1.3 1.94.3.83.49 1.77.49 2.6v.88c0 .83-.18 1.78-.5 2.6a4.4 4.4 0 0 1-1.29 1.95.22.22 0 0 0-.01.33c.03.04.08.07.15.07.05 0 .09-.02.12-.03a.12.12 0 0 0 .02-.01 6.82 6.82 0 0 0 2.32-4.9v-.9a6.81 6.81 0 0 0-2.32-4.9.12.12 0 0 0-.02 0c-.03-.02-.06-.04-.12-.04zm-8.5.46c-.4 0-1.13.23-1.46 1.32-.06.2-.11.45-.33 1.58h-.64c-.1 0-.19-.01-.28.03a.25.25 0 0 0-.12.12.38.38 0 0 0-.03.17c0 .04 0 .1.04.14.03.04.07.07.11.08.09.03.16.02.26.02h.56l-.77 4.04c-.1.51-.19 1-.32 1.36-.06.18-.14.32-.22.4-.08.1-.16.13-.26.13-.03 0-.1 0-.2-.03.11-.05.2-.13.26-.2a.7.7 0 0 0 .13-.4.48.48 0 0 0-.16-.38.53.53 0 0 0-.35-.12c-.34 0-.7.3-.7.76 0 .27.14.5.34.64s.44.2.68.2c.33 0 .61-.17.83-.4.21-.21.37-.48.47-.69.18-.35.32-.84.43-1.25a14.17 14.17 0 0 0 .18-.8l.61-3.26h.81c.1 0 .2.01.3-.03.04-.03.09-.07.11-.13.02-.05.03-.1.03-.17 0-.05-.01-.1-.05-.14a.23.23 0 0 0-.11-.07c-.08-.03-.16-.02-.25-.02h-.73l.2-1.07a26.3 26.3 0 0 1 .24-1.07c.08-.17.22-.3.39-.3l.21.05a.7.7 0 0 0-.25.2.7.7 0 0 0-.13.4c0 .15.06.28.16.37.1.08.22.12.35.12.34 0 .7-.3.7-.76 0-.28-.15-.5-.35-.64-.2-.14-.45-.2-.7-.2zm5.4 2.78c-.6 0-1.06.37-1.36.76-.16.2-.27.4-.35.57-.07.18-.12.3-.12.42 0 .1.08.18.14.2.06.03.1.02.1.02.06 0 .12 0 .18-.04.05-.05.07-.1.08-.17v.02c.35-1.09 1-1.3 1.3-1.3.09 0 .2.01.29.09.09.07.17.2.17.5 0 .27-.18 1-.57 2.48a1.8 1.8 0 0 1-.37.75.7.7 0 0 1-.52.26c-.04 0-.13 0-.22-.03a.68.68 0 0 0 .3-.56.47.47 0 0 0-.18-.39.55.55 0 0 0-.32-.1c-.4 0-.7.33-.7.74 0 .28.16.5.38.63.21.13.48.18.73.18.39 0 .69-.2.89-.41.09-.1.15-.19.2-.27.2.36.59.68 1.16.68.6 0 1.05-.37 1.35-.76.15-.2.27-.4.34-.57.08-.18.12-.3.12-.42a.24.24 0 0 0-.11-.2c-.06-.03-.12-.02-.13-.02a.26.26 0 0 0-.18.06c-.05.05-.06.1-.07.14-.34 1.1-1.02 1.3-1.3 1.3-.17 0-.27-.06-.35-.17a.72.72 0 0 1-.11-.4c0-.22.06-.45.18-.91l.36-1.45c.03-.14.1-.44.25-.7.15-.25.36-.46.68-.46.03 0 .12 0 .22.03a.7.7 0 0 0-.32.56c0 .11.04.23.13.33.08.1.22.16.4.16.14 0 .3-.06.44-.18a.73.73 0 0 0 .24-.55c0-.32-.2-.54-.42-.66a1.52 1.52 0 0 0-.68-.16c-.34 0-.62.16-.82.34a1.8 1.8 0 0 0-.3.35 1.32 1.32 0 0 0-.5-.54 1.37 1.37 0 0 0-.63-.15z\\\" style=\\\"line-height:1.25;-inkscape-font-specification:'Latin Modern Math'\\\" font-weight=\\\"400\\\" font-size=\\\"10.58\\\" font-family=\\\"Latin Modern Math\\\" letter-spacing=\\\"-1.06\\\" word-spacing=\\\"0\\\"/></svg>\\n\";","import MathEditing from './mathediting';\nimport MainFormView from './ui/mainformview';\nimport mathIcon from '../theme/icons/math.svg';\nimport { Plugin } from 'ckeditor5/src/core';\nimport { ClickObserver } from 'ckeditor5/src/engine';\nimport { ButtonView, ContextualBalloon, clickOutsideHandler } from 'ckeditor5/src/ui';\nimport { global, uid } from 'ckeditor5/src/utils';\nimport { getBalloonPositionData } from './utils';\n\nconst mathKeystroke = 'Ctrl+M';\n\nexport default class MathUI extends Plugin {\n\tstatic get requires() {\n\t\treturn [ ContextualBalloon, MathEditing ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'MathUI';\n\t}\n\n\tinit() {\n\t\tconst editor = this.editor;\n\t\teditor.editing.view.addObserver( ClickObserver );\n\n\t\tthis._previewUid = `math-preview-${ uid() }`;\n\n\t\tthis.formView = this._createFormView();\n\n\t\tthis._balloon = editor.plugins.get( ContextualBalloon );\n\n\t\tthis._createToolbarMathButton();\n\n\t\tthis._enableUserBalloonInteractions();\n\t}\n\n\tdestroy() {\n\t\tsuper.destroy();\n\n\t\tthis.formView.destroy();\n\n\t\t// Destroy preview element\n\t\tconst previewEl = global.document.getElementById( this._previewUid );\n\t\tif ( previewEl ) {\n\t\t\tpreviewEl.parentNode.removeChild( previewEl );\n\t\t}\n\t}\n\n\t_showUI() {\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\tif ( !mathCommand.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._addFormView();\n\n\t\tthis._balloon.showStack( 'main' );\n\t}\n\n\t_createFormView() {\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\tconst mathConfig = editor.config.get( 'math' );\n\n\t\tconst formView = new MainFormView(\n\t\t\teditor.locale,\n\t\t\tmathConfig.engine,\n\t\t\tmathConfig.lazyLoad,\n\t\t\tmathConfig.enablePreview,\n\t\t\tthis._previewUid,\n\t\t\tmathConfig.previewClassName,\n\t\t\tmathConfig.popupClassName,\n\t\t\tmathConfig.katexRenderOptions\n\t\t);\n\n\t\tformView.mathInputView.bind( 'value' ).to( mathCommand, 'value' );\n\t\tformView.displayButtonView.bind( 'isOn' ).to( mathCommand, 'display' );\n\n\t\t// Form elements should be read-only when corresponding commands are disabled.\n\t\tformView.mathInputView.bind( 'isReadOnly' ).to( mathCommand, 'isEnabled', value => !value );\n\t\tformView.saveButtonView.bind( 'isEnabled' ).to( mathCommand );\n\t\tformView.displayButtonView.bind( 'isEnabled' ).to( mathCommand );\n\n\t\t// Listen to submit button click\n\t\tthis.listenTo( formView, 'submit', () => {\n\t\t\teditor.execute( 'math', formView.equation, formView.displayButtonView.isOn, mathConfig.outputType, mathConfig.forceOutputType );\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Listen to cancel button click\n\t\tthis.listenTo( formView, 'cancel', () => {\n\t\t\tthis._closeFormView();\n\t\t} );\n\n\t\t// Close plugin ui, if esc is pressed (while ui is focused)\n\t\tformView.keystrokes.set( 'esc', ( data, cancel ) => {\n\t\t\tthis._closeFormView();\n\t\t\tcancel();\n\t\t} );\n\n\t\treturn formView;\n\t}\n\n\t_addFormView() {\n\t\tif ( this._isFormInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\tthis._balloon.add( {\n\t\t\tview: this.formView,\n\t\t\tposition: getBalloonPositionData( editor )\n\t\t} );\n\n\t\tif ( this._balloon.visibleView === this.formView ) {\n\t\t\tthis.formView.mathInputView.fieldView.element.select();\n\t\t}\n\n\t\t// Show preview element\n\t\tconst previewEl = global.document.getElementById( this._previewUid );\n\t\tif ( previewEl && this.formView.previewEnabled ) {\n\t\t\t// Force refresh preview\n\t\t\tthis.formView.mathView.updateMath();\n\t\t}\n\n\t\tthis.formView.equation = mathCommand.value || '';\n\t\tthis.formView.displayButtonView.isOn = mathCommand.display || false;\n\t}\n\n\t_hideUI() {\n\t\tif ( !this._isFormInPanel ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst editor = this.editor;\n\n\t\tthis.stopListening( editor.ui, 'update' );\n\t\tthis.stopListening( this._balloon, 'change:visibleView' );\n\n\t\teditor.editing.view.focus();\n\n\t\t// Remove form first because it's on top of the stack.\n\t\tthis._removeFormView();\n\t}\n\n\t_closeFormView() {\n\t\tconst mathCommand = this.editor.commands.get( 'math' );\n\t\tif ( mathCommand.value !== undefined ) {\n\t\t\tthis._removeFormView();\n\t\t} else {\n\t\t\tthis._hideUI();\n\t\t}\n\t}\n\n\t_removeFormView() {\n\t\tif ( this._isFormInPanel ) {\n\t\t\tthis.formView.saveButtonView.focus();\n\n\t\t\tthis._balloon.remove( this.formView );\n\n\t\t\t// Hide preview element\n\t\t\tconst previewEl = global.document.getElementById( this._previewUid );\n\t\t\tif ( previewEl ) {\n\t\t\t\tpreviewEl.style.visibility = 'hidden';\n\t\t\t}\n\n\t\t\tthis.editor.editing.view.focus();\n\t\t}\n\t}\n\n\t_createToolbarMathButton() {\n\t\tconst editor = this.editor;\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\t\tconst t = editor.t;\n\n\t\t// Handle the `Ctrl+M` keystroke and show the panel.\n\t\teditor.keystrokes.set( mathKeystroke, ( keyEvtData, cancel ) => {\n\t\t\t// Prevent focusing the search bar in FF and opening new tab in Edge. #153, #154.\n\t\t\tcancel();\n\n\t\t\tif ( mathCommand.isEnabled ) {\n\t\t\t\tthis._showUI();\n\t\t\t}\n\t\t} );\n\n\t\tthis.editor.ui.componentFactory.add( 'math', locale => {\n\t\t\tconst button = new ButtonView( locale );\n\n\t\t\tbutton.isEnabled = true;\n\t\t\tbutton.label = t( 'Insert math' );\n\t\t\tbutton.icon = mathIcon;\n\t\t\tbutton.keystroke = mathKeystroke;\n\t\t\tbutton.tooltip = true;\n\t\t\tbutton.isToggleable = true;\n\n\t\t\tbutton.bind( 'isEnabled' ).to( mathCommand, 'isEnabled' );\n\n\t\t\tthis.listenTo( button, 'execute', () => this._showUI() );\n\n\t\t\treturn button;\n\t\t} );\n\t}\n\n\t_enableUserBalloonInteractions() {\n\t\tconst editor = this.editor;\n\t\tconst viewDocument = this.editor.editing.view.document;\n\t\tthis.listenTo( viewDocument, 'click', () => {\n\t\t\tconst mathCommand = editor.commands.get( 'math' );\n\t\t\tif ( mathCommand.value ) {\n\t\t\t\tif ( mathCommand.isEnabled ) {\n\t\t\t\t\tthis._showUI();\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t\t// Close the panel on the Esc key press when the editable has focus and the balloon is visible.\n\t\teditor.keystrokes.set( 'Esc', ( data, cancel ) => {\n\t\t\tif ( this._isUIVisible ) {\n\t\t\t\tthis._hideUI();\n\t\t\t\tcancel();\n\t\t\t}\n\t\t} );\n\n\t\t// Close on click outside of balloon panel element.\n\t\tclickOutsideHandler( {\n\t\t\temitter: this.formView,\n\t\t\tactivator: () => this._isFormInPanel,\n\t\t\tcontextElements: [ this._balloon.view.element ],\n\t\t\tcallback: () => this._hideUI()\n\t\t} );\n\t}\n\n\tget _isUIVisible() {\n\t\tconst visibleView = this._balloon.visibleView;\n\n\t\treturn visibleView == this.formView;\n\t}\n\n\tget _isFormInPanel() {\n\t\treturn this._balloon.hasView( this.formView );\n\t}\n}\n","import { Clipboard } from 'ckeditor5/src/clipboard';\nimport { Plugin } from 'ckeditor5/src/core';\nimport { LivePosition, LiveRange } from 'ckeditor5/src/engine';\nimport { Undo } from 'ckeditor5/src/undo';\nimport { global } from 'ckeditor5/src/utils';\nimport { extractDelimiters, hasDelimiters, delimitersCounts } from './utils';\n\nexport default class AutoMath extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Clipboard, Undo ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'AutoMath';\n\t}\n\n\tconstructor( editor ) {\n\t\tsuper( editor );\n\n\t\tthis._timeoutId = null;\n\n\t\tthis._positionToInsert = null;\n\t}\n\n\tinit() {\n\t\tconst editor = this.editor;\n\t\tconst modelDocument = editor.model.document;\n\n\t\tthis.listenTo( editor.plugins.get( Clipboard ), 'inputTransformation', () => {\n\t\t\tconst firstRange = modelDocument.selection.getFirstRange();\n\n\t\t\tconst leftLivePosition = LivePosition.fromPosition( firstRange.start );\n\t\t\tleftLivePosition.stickiness = 'toPrevious';\n\n\t\t\tconst rightLivePosition = LivePosition.fromPosition( firstRange.end );\n\t\t\trightLivePosition.stickiness = 'toNext';\n\n\t\t\tmodelDocument.once( 'change:data', () => {\n\t\t\t\tthis._mathBetweenPositions( leftLivePosition, rightLivePosition );\n\n\t\t\t\tleftLivePosition.detach();\n\t\t\t\trightLivePosition.detach();\n\t\t\t}, { priority: 'high' } );\n\t\t} );\n\n\t\teditor.commands.get( 'undo' ).on( 'execute', () => {\n\t\t\tif ( this._timeoutId ) {\n\t\t\t\tglobal.window.clearTimeout( this._timeoutId );\n\t\t\t\tthis._positionToInsert.detach();\n\n\t\t\t\tthis._timeoutId = null;\n\t\t\t\tthis._positionToInsert = null;\n\t\t\t}\n\t\t}, { priority: 'high' } );\n\t}\n\n\t_mathBetweenPositions( leftPosition, rightPosition ) {\n\t\tconst editor = this.editor;\n\n\t\tconst mathConfig = this.editor.config.get( 'math' );\n\n\t\tconst equationRange = new LiveRange( leftPosition, rightPosition );\n\t\tconst walker = equationRange.getWalker( { ignoreElementEnd: true } );\n\n\t\tlet text = '';\n\n\t\t// Get equation text\n\t\tfor ( const node of walker ) {\n\t\t\tif ( node.item.is( '$textProxy' ) ) {\n\t\t\t\ttext += node.item.data;\n\t\t\t}\n\t\t}\n\n\t\ttext = text.trim();\n\n\t\t// Skip if don't have delimiters\n\t\tif ( !hasDelimiters( text ) || delimitersCounts( text ) !== 2 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst mathCommand = editor.commands.get( 'math' );\n\n\t\t// Do not anything if math element cannot be inserted at the current position\n\t\tif ( !mathCommand.isEnabled ) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._positionToInsert = LivePosition.fromPosition( leftPosition );\n\n\t\t// With timeout user can undo conversation if want use plain text\n\t\tthis._timeoutId = global.window.setTimeout( () => {\n\t\t\teditor.model.change( writer => {\n\t\t\t\tthis._timeoutId = null;\n\n\t\t\t\twriter.remove( equationRange );\n\n\t\t\t\tlet insertPosition;\n\n\t\t\t\t// Check if position where the math element should be inserted is still valid.\n\t\t\t\tif ( this._positionToInsert.root.rootName !== '$graveyard' ) {\n\t\t\t\t\tinsertPosition = this._positionToInsert;\n\t\t\t\t}\n\n\t\t\t\teditor.model.change( innerWriter => {\n\t\t\t\t\tconst params = Object.assign( extractDelimiters( text ), {\n\t\t\t\t\t\ttype: mathConfig.outputType\n\t\t\t\t\t} );\n\t\t\t\t\tconst mathElement = innerWriter.createElement( params.display ? 'mathtex-display' : 'mathtex-inline', params );\n\n\t\t\t\t\teditor.model.insertContent( mathElement, insertPosition );\n\n\t\t\t\t\tinnerWriter.setSelection( mathElement, 'on' );\n\t\t\t\t} );\n\n\t\t\t\tthis._positionToInsert.detach();\n\t\t\t\tthis._positionToInsert = null;\n\t\t\t} );\n\t\t}, 100 );\n\t}\n}\n","import { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\n\nimport MathUI from './mathui';\nimport MathEditing from './mathediting';\nimport AutoMath from './automath';\n\nexport default class Math extends Plugin {\n\tstatic get requires() {\n\t\treturn [ MathEditing, MathUI, AutoMath, Widget ];\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 'Math';\n\t}\n}\n","import api from \"!../../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js\";\n            import content from \"!!../../../node_modules/css-loader/dist/cjs.js!../../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].use[2]!./theme.css\";\n\nvar options = {\"injectType\":\"singletonStyleTag\",\"attributes\":{\"data-cke\":true}};\n\noptions.insert = \"head\";\noptions.singleton = true;\n\nvar update = api(content, options);\n\n\n\nexport default content.locals || {};","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n// The editor creator to use.\nimport BalloonEditorBase from '@ckeditor/ckeditor5-editor-balloon/src/ballooneditor';\n\nimport FindAndReplace from '@ckeditor/ckeditor5-find-and-replace/src/findandreplace';\nimport UploadAdapter from '@ckeditor/ckeditor5-adapter-ckfinder/src/uploadadapter';\nimport Autoformat from '@ckeditor/ckeditor5-autoformat/src/autoformat';\nimport Bold from '@ckeditor/ckeditor5-basic-styles/src/bold';\nimport Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';\nimport Superscript from '@ckeditor/ckeditor5-basic-styles/src/superscript';\nimport Subscript from '@ckeditor/ckeditor5-basic-styles/src/subscript';\nimport Underline from '@ckeditor/ckeditor5-basic-styles/src/underline';\nimport Strikethrough from '@ckeditor/ckeditor5-basic-styles/src/strikethrough';\nimport Code from '@ckeditor/ckeditor5-basic-styles/src/code';\nimport BlockQuote from '@ckeditor/ckeditor5-block-quote/src/blockquote';\nimport Heading from '@ckeditor/ckeditor5-heading/src/heading';\nimport Image from '@ckeditor/ckeditor5-image/src/image';\nimport ImageCaption from '@ckeditor/ckeditor5-image/src/imagecaption';\nimport ImageStyle from '@ckeditor/ckeditor5-image/src/imagestyle';\nimport ImageToolbar from '@ckeditor/ckeditor5-image/src/imagetoolbar';\nimport ImageUpload from '@ckeditor/ckeditor5-image/src/imageupload';\nimport ImageResize from '@ckeditor/ckeditor5-image/src/imageresize';\nimport Link from '@ckeditor/ckeditor5-link/src/link';\nimport AutoLink from '@ckeditor/ckeditor5-link/src/autolink';\nimport List from '@ckeditor/ckeditor5-list/src/list';\nimport ListProperties from '@ckeditor/ckeditor5-list/src/listproperties';\nimport TodoList from '@ckeditor/ckeditor5-list/src/todolist';\nimport Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';\nimport PasteFromOffice from '@ckeditor/ckeditor5-paste-from-office/src/pastefromoffice';\nimport PictureEditing from '@ckeditor/ckeditor5-image/src/pictureediting';\nimport Table from '@ckeditor/ckeditor5-table/src/table';\nimport TableToolbar from '@ckeditor/ckeditor5-table/src/tabletoolbar';\nimport TableProperties from '@ckeditor/ckeditor5-table/src/tableproperties';\nimport TableCellProperties from '@ckeditor/ckeditor5-table/src/tablecellproperties';\nimport TableCaption from '@ckeditor/ckeditor5-table/src/tablecaption';\nimport TableSelection from '@ckeditor/ckeditor5-table/src/tableselection';\nimport TableColumnResize from '@ckeditor/ckeditor5-table/src/tablecolumnresize';\nimport BlockToolbar from '@ckeditor/ckeditor5-ui/src/toolbar/block/blocktoolbar';\nimport HeadingButtonsUI from '@ckeditor/ckeditor5-heading/src/headingbuttonsui';\nimport ParagraphButtonUI from '@ckeditor/ckeditor5-paragraph/src/paragraphbuttonui';\nimport TextTransformation from '@ckeditor/ckeditor5-typing/src/texttransformation';\nimport Font from '@ckeditor/ckeditor5-font/src/font';\nimport FontColor from '@ckeditor/ckeditor5-font/src/fontcolor';\nimport FontBackgroundColor from '@ckeditor/ckeditor5-font/src/fontbackgroundcolor';\nimport CodeBlock from '@ckeditor/ckeditor5-code-block/src/codeblock';\nimport Mention from '@ckeditor/ckeditor5-mention/src/mention';\nimport Indent from '@ckeditor/ckeditor5-indent/src/indent';\nimport IndentBlock from '@ckeditor/ckeditor5-indent/src/indentblock';\nimport SelectAll from '@ckeditor/ckeditor5-select-all/src/selectall';\nimport HorizontalLine from '@ckeditor/ckeditor5-horizontal-line/src/horizontalline';\nimport Clipboard from '@ckeditor/ckeditor5-clipboard/src/clipboard';\nimport Enter from '@ckeditor/ckeditor5-enter/src/enter';\nimport ShiftEnter from '@ckeditor/ckeditor5-enter/src/shiftenter';\nimport Typing from '@ckeditor/ckeditor5-typing/src/typing';\nimport Undo from '@ckeditor/ckeditor5-undo/src/undo';\nimport RemoveFormat from '@ckeditor/ckeditor5-remove-format/src/removeformat';\nimport MentionCustomization from './mention_customization';\nimport UploadimagePlugin from './uploadimage';\nimport InternalLinkPlugin from './internallink';\nimport MarkdownImportPlugin from './markdownimport';\nimport CuttonotePlugin from './cuttonote';\nimport IncludeNote from './includenote';\nimport ReferenceLink from './referencelink';\nimport indentBlockShortcutPlugin from './indent_block_shortcut';\nimport removeFormatLinksPlugin from './remove_format_links';\nimport Mathematics from 'ckeditor5-math/src/math';\nimport AutoformatMath from 'ckeditor5-math/src/autoformatmath';\nimport EditorWatchdog from '@ckeditor/ckeditor5-watchdog/src/editorwatchdog';\n\n/**\n * @internal\n */\nimport '../theme/theme.css';\n\n// expose so that Trilium can use it\n// eslint-disable-next-line no-undef\nwindow.EditorWatchdog = EditorWatchdog;\n\nexport default class BalloonEditor extends BalloonEditorBase {\n\tpublic static override builtinPlugins = [\n\t\t// essentials package expanded to allow selectively disable Enter and ShiftEnter\n\t\tClipboard, Enter, SelectAll, ShiftEnter, Typing, Undo,\n\t\tUploadAdapter,\n\t\tAutoformat,\n\t\tBold,\n\t\tItalic,\n\t\tUnderline,\n\t\tStrikethrough,\n\t\tCode,\n\t\tSuperscript,\n\t\tSubscript,\n\t\tBlockQuote,\n\t\tHeading,\n\t\tImage,\n\t\tImageCaption,\n\t\tImageStyle,\n\t\tImageToolbar,\n\t\tImageUpload,\n\t\tImageResize,\n\t\tLink,\n\t\tAutoLink,\n\t\tList,\n\t\tListProperties,\n\t\tTodoList,\n\t\tParagraph,\n\t\tPasteFromOffice,\n\t\tPictureEditing,\n\t\tTable,\n\t\tTableToolbar,\n\t\tTableProperties,\n\t\tTableCellProperties,\n\t\tTableSelection,\n\t\tTableCaption,\n\t\tTableColumnResize,\n\t\tIndent,\n\t\tIndentBlock,\n\t\tBlockToolbar,\n\t\tParagraphButtonUI,\n\t\tHeadingButtonsUI,\n\t\tUploadimagePlugin,\n\t\tInternalLinkPlugin,\n\t\tMarkdownImportPlugin,\n\t\tCuttonotePlugin,\n\t\tTextTransformation,\n\t\tFont,\n\t\tFontColor,\n\t\tFontBackgroundColor,\n\t\tCodeBlock,\n\t\tSelectAll,\n\t\tHorizontalLine,\n\t\tRemoveFormat,\n\t\tFindAndReplace,\n\t\tMention,\n\t\tMentionCustomization,\n\t\tIncludeNote,\n\t\tReferenceLink,\n\t\tindentBlockShortcutPlugin,\n\t\tremoveFormatLinksPlugin,\n\t\tMathematics,\n\t\tAutoformatMath\n\t];\n\n\tpublic static override defaultConfig = {\n\t\ttoolbar: {\n\t\t\titems: [\n\t\t\t\t'fontSize',\n\t\t\t\t'bold',\n\t\t\t\t'italic',\n\t\t\t\t'underline',\n\t\t\t\t'strikethrough',\n\t\t\t\t'superscript',\n\t\t\t\t'subscript',\n\t\t\t\t'fontColor',\n\t\t\t\t'fontBackgroundColor',\n\t\t\t\t'code',\n\t\t\t\t'link',\n\t\t\t\t'removeFormat',\n\t\t\t\t'internallink',\n\t\t\t\t'cuttonote'\n\t\t\t]\n\t\t},\n\t\timage: {\n\t\t\tstyles: [\n\t\t\t\t'alignLeft',\n\t\t\t\t'alignCenter',\n\t\t\t\t'alignRight',\n\t\t\t\t'full', // full and side are for BC since the old images have been created with these styles\n\t\t\t\t'side'\n\t\t\t],\n\t\t\tresizeOptions: [\n\t\t\t\t{\n\t\t\t\t\tname: 'imageResize:original',\n\t\t\t\t\tvalue: null,\n\t\t\t\t\ticon: 'original'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tname: 'imageResize:25',\n\t\t\t\t\tvalue: '25',\n\t\t\t\t\ticon: 'small'\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\tname: 'imageResize:50',\n\t\t\t\t\tvalue: '50',\n\t\t\t\t\ticon: 'medium'\n\t\t\t\t}\n\t\t\t],\n\t\t\ttoolbar: [\n\t\t\t\t'imageStyle:inline',\n\t\t\t\t'imageStyle:alignLeft',\n\t\t\t\t'imageStyle:alignCenter',\n\t\t\t\t'imageStyle:alignRight',\n\t\t\t\t'|',\n\t\t\t\t'imageResize:25',\n\t\t\t\t'imageResize:50',\n\t\t\t\t'imageResize:original',\n\t\t\t\t'|',\n\t\t\t\t'toggleImageCaption'\n\t\t\t]\n\t\t},\n\t\theading: {\n\t\t\toptions: [\n\t\t\t\t{ model: 'paragraph', title: 'Paragraph', class: 'ck-heading_paragraph' },\n\t\t\t\t// heading1 is not used since that should be a note's title\n\t\t\t\t{ model: 'heading2', view: 'h2', title: 'Heading 2', class: 'ck-heading_heading2' },\n\t\t\t\t{ model: 'heading3', view: 'h3', title: 'Heading 3', class: 'ck-heading_heading3' },\n\t\t\t\t{ model: 'heading4', view: 'h4', title: 'Heading 4', class: 'ck-heading_heading4' },\n\t\t\t\t{ model: 'heading5', view: 'h5', title: 'Heading 5', class: 'ck-heading_heading5' },\n\t\t\t\t{ model: 'heading6', view: 'h6', title: 'Heading 6', class: 'ck-heading_heading6' }\n\t\t\t]\n\t\t},\n\t\tblockToolbar: [\n\t\t\t'heading',\n\t\t\t'|',\n\t\t\t'bulletedList', 'numberedList', 'todoList',\n\t\t\t'|',\n\t\t\t'blockQuote', 'codeBlock', 'insertTable', 'internallink', 'includeNote', 'math',\n\t\t\t'|',\n\t\t\t'outdent', 'indent', 'horizontalLine',\n\t\t\t'|',\n\t\t\t'imageUpload',\n\t\t\t'markdownImport',\n\t\t\t'findAndReplace'\n\t\t],\n\t\ttable: {\n\t\t\tcontentToolbar: [\n\t\t\t\t'tableColumn',\n\t\t\t\t'tableRow',\n\t\t\t\t'mergeTableCells',\n\t\t\t\t'tableProperties',\n\t\t\t\t'tableCellProperties',\n\t\t\t\t'toggleTableCaption'\n\t\t\t]\n\t\t},\n\t\tlist: {\n\t\t\tproperties: {\n\t\t\t\tstyles: true,\n\t\t\t\tstartIndex: true,\n\t\t\t\treversed: true\n\t\t\t}\n\t\t},\n\t\tlink: {\n\t\t\tdefaultProtocol: 'https://'\n\t\t},\n\t\t// This value must be kept in sync with the language defined in webpack.config.js.\n\t\tlanguage: 'en'\n\t};\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module typing/typing\n */\n\nimport { Plugin } from '@ckeditor/ckeditor5-core';\nimport Input from './input';\nimport Delete from './delete';\n\n/**\n * The typing feature. It handles typing.\n *\n * This is a \"glue\" plugin which loads the {@link module:typing/input~Input} and {@link module:typing/delete~Delete}\n * plugins.\n */\nexport default class Typing extends Plugin {\n\tpublic static get requires() {\n\t\treturn [ Input, Delete ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Typing' {\n\t\treturn 'Typing';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/bold\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport BoldEditing from './bold/boldediting';\nimport BoldUI from './bold/boldui';\n\n/**\n * The bold feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature} guide\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/bold/boldediting~BoldEditing bold editing feature}\n * and {@link module:basic-styles/bold/boldui~BoldUI bold UI feature}.\n */\nexport default class Bold extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ BoldEditing, BoldUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Bold' {\n\t\treturn 'Bold';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/italic\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ItalicEditing from './italic/italicediting';\nimport ItalicUI from './italic/italicui';\n\n/**\n * The italic feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature} guide\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/italic/italicediting~ItalicEditing} and\n * {@link module:basic-styles/italic/italicui~ItalicUI} plugins.\n */\nexport default class Italic extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ItalicEditing, ItalicUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Italic' {\n\t\treturn 'Italic';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/underline\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport UnderlineEditing from './underline/underlineediting';\nimport UnderlineUI from './underline/underlineui';\n\n/**\n * The underline feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature} guide\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/underline/underlineediting~UnderlineEditing} and\n * {@link module:basic-styles/underline/underlineui~UnderlineUI} plugins.\n */\nexport default class Underline extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ UnderlineEditing, UnderlineUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Underline' {\n\t\treturn 'Underline';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/strikethrough\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport StrikethroughEditing from './strikethrough/strikethroughediting';\nimport StrikethroughUI from './strikethrough/strikethroughui';\n\n/**\n * The strikethrough feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature} guide\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/strikethrough/strikethroughediting~StrikethroughEditing} and\n * {@link module:basic-styles/strikethrough/strikethroughui~StrikethroughUI} plugins.\n */\nexport default class Strikethrough extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ StrikethroughEditing, StrikethroughUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Strikethrough' {\n\t\treturn 'Strikethrough';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/code\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport CodeEditing from './code/codeediting';\nimport CodeUI from './code/codeui';\n\nimport '../theme/code.css';\n\n/**\n * The code feature.\n *\n * For a detailed overview check the {@glink features/basic-styles Basic styles feature} guide\n * and the {@glink api/basic-styles package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:basic-styles/code/codeediting~CodeEditing code editing feature}\n * and {@link module:basic-styles/code/codeui~CodeUI code UI feature}.\n */\nexport default class Code extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ CodeEditing, CodeUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Code' {\n\t\treturn 'Code';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/superscript\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport SuperscriptEditing from './superscript/superscriptediting';\nimport SuperscriptUI from './superscript/superscriptui';\n\n/**\n * The superscript feature.\n *\n * It loads the {@link module:basic-styles/superscript/superscriptediting~SuperscriptEditing} and\n * {@link module:basic-styles/superscript/superscriptui~SuperscriptUI} plugins.\n */\nexport default class Superscript extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ SuperscriptEditing, SuperscriptUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Superscript' {\n\t\treturn 'Superscript';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module basic-styles/subscript\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport SubscriptEditing from './subscript/subscriptediting';\nimport SubscriptUI from './subscript/subscriptui';\n\n/**\n * The subscript feature.\n *\n * It loads the {@link module:basic-styles/subscript/subscriptediting~SubscriptEditing} and\n * {@link module:basic-styles/subscript/subscriptui~SubscriptUI} plugins.\n */\nexport default class Subscript extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ SubscriptEditing, SubscriptUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Subscript' {\n\t\treturn 'Subscript';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module block-quote/blockquote\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport BlockQuoteEditing from './blockquoteediting';\nimport BlockQuoteUI from './blockquoteui';\n\n/**\n * The block quote plugin.\n *\n * For more information about this feature check the {@glink api/block-quote package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:block-quote/blockquoteediting~BlockQuoteEditing block quote editing feature}\n * and {@link module:block-quote/blockquoteui~BlockQuoteUI block quote UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class BlockQuote extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ BlockQuoteEditing, BlockQuoteUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'BlockQuote' {\n\t\treturn 'BlockQuote';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module heading/heading\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport HeadingEditing from './headingediting';\nimport HeadingUI from './headingui';\n\nimport '../theme/heading.css';\n\n/**\n * The headings feature.\n *\n * For a detailed overview, check the {@glink features/headings Headings feature} guide\n * and the {@glink api/heading package page}.\n *\n * This is a \"glue\" plugin which loads the {@link module:heading/headingediting~HeadingEditing heading editing feature}\n * and {@link module:heading/headingui~HeadingUI heading UI feature}.\n *\n * @extends module:core/plugin~Plugin\n */\nexport default class Heading extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ HeadingEditing, HeadingUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Heading' {\n\t\treturn 'Heading';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/image\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageBlock from './imageblock';\nimport ImageInline from './imageinline';\n\nimport '../theme/image.css';\n\n/**\n * The image plugin.\n *\n * For a detailed overview, check the {@glink features/images/images-overview image feature} documentation.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * {@link module:image/imageblock~ImageBlock},\n * * {@link module:image/imageinline~ImageInline},\n *\n * Usually, it is used in conjunction with other plugins from this package. See the {@glink api/image package page}\n * for more information.\n */\nexport default class Image extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageBlock, ImageInline ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Image' {\n\t\treturn 'Image';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagecaption\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageCaptionEditing from './imagecaption/imagecaptionediting';\nimport ImageCaptionUI from './imagecaption/imagecaptionui';\n\nimport '../theme/imagecaption.css';\n\n/**\n * The image caption plugin.\n *\n * For a detailed overview, check the {@glink features/images/images-captions image caption} documentation.\n */\nexport default class ImageCaption extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageCaptionEditing, ImageCaptionUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageCaption' {\n\t\treturn 'ImageCaption';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagestyle\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageStyleEditing from './imagestyle/imagestyleediting';\nimport ImageStyleUI from './imagestyle/imagestyleui';\n\n/**\n * The image style plugin.\n *\n * For a detailed overview of the image styles feature, check the {@glink features/images/images-styles documentation}.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n * * {@link module:image/imagestyle/imagestyleediting~ImageStyleEditing},\n * * {@link module:image/imagestyle/imagestyleui~ImageStyleUI}\n *\n * It provides a default configuration, which can be extended or overwritten.\n * Read more about the {@link module:image/imageconfig~ImageConfig#styles image styles configuration}.\n */\nexport default class ImageStyle extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageStyleEditing, ImageStyleUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageStyle' {\n\t\treturn 'ImageStyle';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imagetoolbar\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { WidgetToolbarRepository } from 'ckeditor5/src/widget';\n\nimport ImageUtils from './imageutils';\nimport type { ImageStyleDropdownDefinition } from './imageconfig';\n\nimport { isObject } from 'lodash-es';\n\n/**\n * The image toolbar plugin. It creates and manages the image toolbar (the toolbar displayed when an image is selected).\n *\n * For an overview, check the {@glink features/images/images-overview#image-contextual-toolbar image contextual toolbar} documentation.\n *\n * Instances of toolbar components (e.g. buttons) are created using the editor's\n * {@link module:ui/componentfactory~ComponentFactory component factory}\n * based on the {@link module:image/imageconfig~ImageConfig#toolbar `image.toolbar` configuration option}.\n *\n * The toolbar uses the {@link module:ui/panel/balloon/contextualballoon~ContextualBalloon}.\n */\nexport default class ImageToolbar extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ WidgetToolbarRepository, ImageUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageToolbar' {\n\t\treturn 'ImageToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst widgetToolbarRepository = editor.plugins.get( WidgetToolbarRepository );\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\twidgetToolbarRepository.register( 'image', {\n\t\t\tariaLabel: t( 'Image toolbar' ),\n\t\t\titems: normalizeDeclarativeConfig( editor.config.get( 'image.toolbar' ) || [] ),\n\t\t\tgetRelatedElement: selection => imageUtils.getClosestSelectedImageWidget( selection )!\n\t\t} );\n\t}\n}\n\n/**\n * Convert the dropdown definitions to their keys registered in the ComponentFactory.\n * The registration precess should be handled by the plugin which handles the UI of a particular feature.\n */\nfunction normalizeDeclarativeConfig( config: Array<string | ImageStyleDropdownDefinition> ): Array<string> {\n\treturn config.map( item => isObject( item ) ? item.name : item );\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageupload\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageUploadUI from './imageupload/imageuploadui';\nimport ImageUploadProgress from './imageupload/imageuploadprogress';\nimport ImageUploadEditing from './imageupload/imageuploadediting';\n\n/**\n * The image upload plugin.\n *\n * For a detailed overview, check the {@glink features/images/image-upload/image-upload image upload feature} documentation.\n *\n * This plugin does not do anything directly, but it loads a set of specific plugins to enable image uploading:\n *\n * * {@link module:image/imageupload/imageuploadediting~ImageUploadEditing},\n * * {@link module:image/imageupload/imageuploadui~ImageUploadUI},\n * * {@link module:image/imageupload/imageuploadprogress~ImageUploadProgress}.\n */\nexport default class ImageUpload extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageUpload' {\n\t\treturn 'ImageUpload';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageUploadEditing, ImageUploadUI, ImageUploadProgress ] as const;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/imageresize\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ImageResizeButtons from './imageresize/imageresizebuttons';\nimport ImageResizeEditing from './imageresize/imageresizeediting';\nimport ImageResizeHandles from './imageresize/imageresizehandles';\n\nimport '../theme/imageresize.css';\n\n/**\n * The image resize plugin.\n *\n * It adds a possibility to resize each image using handles.\n */\nexport default class ImageResize extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageResizeEditing, ImageResizeHandles, ImageResizeButtons ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ImageResize' {\n\t\treturn 'ImageResize';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module link/link\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport LinkEditing from './linkediting';\nimport LinkUI from './linkui';\nimport AutoLink from './autolink';\n\n/**\n * The link plugin.\n *\n * This is a \"glue\" plugin that loads the {@link module:link/linkediting~LinkEditing link editing feature}\n * and {@link module:link/linkui~LinkUI link UI feature}.\n */\nexport default class Link extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ LinkEditing, LinkUI, AutoLink ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Link' {\n\t\treturn 'Link';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/list\n */\n\nimport ListEditing from './list/listediting';\nimport ListUI from './list/listui';\n\nimport { Plugin } from 'ckeditor5/src/core';\n\n/**\n * The list feature.\n *\n * This is a \"glue\" plugin that loads the {@link module:list/list/listediting~ListEditing list editing feature}\n * and {@link module:list/list/listui~ListUI list UI feature}.\n */\nexport default class List extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ListEditing, ListUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'List' {\n\t\treturn 'List';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/listproperties\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport ListPropertiesEditing from './listproperties/listpropertiesediting';\nimport ListPropertiesUI from './listproperties/listpropertiesui';\n\n/**\n * The list properties feature.\n *\n * This is a \"glue\" plugin that loads the {@link module:list/listproperties/listpropertiesediting~ListPropertiesEditing list properties\n * editing feature} and the {@link module:list/listproperties/listpropertiesui~ListPropertiesUI list properties UI feature}.\n */\nexport default class ListProperties extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ListPropertiesEditing, ListPropertiesUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'ListProperties' {\n\t\treturn 'ListProperties';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module list/todolist\n */\n\nimport TodoListEditing from './todolist/todolistediting';\nimport TodoListUI from './todolist/todolistui';\nimport { Plugin } from 'ckeditor5/src/core';\nimport '../theme/todolist.css';\n\n/**\n * The to-do list feature.\n *\n * This is a \"glue\" plugin that loads the {@link module:list/todolist/todolistediting~TodoListEditing to-do list editing feature}\n * and the {@link module:list/todolist/todolistui~TodoListUI to-do list UI feature}.\n */\nexport default class TodoList extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TodoListEditing, TodoListUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TodoList' {\n\t\treturn 'TodoList';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module paste-from-office/pastefromoffice\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport { ClipboardPipeline } from 'ckeditor5/src/clipboard';\n\nimport GoogleDocsNormalizer from './normalizers/googledocsnormalizer';\nimport MSWordNormalizer from './normalizers/mswordnormalizer';\n\nimport { parseHtml } from './filters/parse';\nimport type { Normalizer, NormalizerData } from './normalizer';\n\n/**\n * The Paste from Office plugin.\n *\n * This plugin handles content pasted from Office apps and transforms it (if necessary)\n * to a valid structure which can then be understood by the editor features.\n *\n * Transformation is made by a set of predefined {@link module:paste-from-office/normalizer~Normalizer normalizers}.\n * This plugin includes following normalizers:\n * * {@link module:paste-from-office/normalizers/mswordnormalizer~MSWordNormalizer Microsoft Word normalizer}\n * * {@link module:paste-from-office/normalizers/googledocsnormalizer~GoogleDocsNormalizer Google Docs normalizer}\n *\n * For more information about this feature check the {@glink api/paste-from-office package page}.\n */\nexport default class PasteFromOffice extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'PasteFromOffice' {\n\t\treturn 'PasteFromOffice';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ClipboardPipeline ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst editor = this.editor;\n\t\tconst clipboardPipeline: ClipboardPipeline = editor.plugins.get( 'ClipboardPipeline' );\n\t\tconst viewDocument = editor.editing.view.document;\n\t\tconst normalizers: Array<Normalizer> = [];\n\n\t\tnormalizers.push( new MSWordNormalizer( viewDocument ) );\n\t\tnormalizers.push( new GoogleDocsNormalizer( viewDocument ) );\n\n\t\tclipboardPipeline.on(\n\t\t\t'inputTransformation',\n\t\t\t( evt, data: NormalizerData ) => {\n\t\t\t\tif ( data._isTransformedWithPasteFromOffice ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst codeBlock = editor.model.document.selection.getFirstPosition()!.parent;\n\n\t\t\t\tif ( codeBlock.is( 'element', 'codeBlock' ) ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst htmlString = data.dataTransfer.getData( 'text/html' );\n\t\t\t\tconst activeNormalizer = normalizers.find( normalizer => normalizer.isActive( htmlString ) );\n\n\t\t\t\tif ( activeNormalizer ) {\n\t\t\t\t\tdata._parsedData = parseHtml( htmlString, viewDocument.stylesProcessor );\n\n\t\t\t\t\tactiveNormalizer.execute( data );\n\n\t\t\t\t\tdata._isTransformedWithPasteFromOffice = true;\n\t\t\t\t}\n\t\t\t},\n\t\t\t{ priority: 'high' }\n\t\t);\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module image/pictureediting\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport ImageEditing from './image/imageediting';\nimport ImageUtils from './imageutils';\nimport { downcastSourcesAttribute, upcastPicture } from './image/converters';\nimport type { default as ImageUploadEditing, ImageUploadCompleteEvent } from './imageupload/imageuploadediting';\n\n/**\n * This plugin enables the [`<picture>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/picture) element support in the editor.\n *\n * * It enables the `sources` model attribute on `imageBlock` and `imageInline` model elements\n * (brought by {@link module:image/imageblock~ImageBlock} and {@link module:image/imageinline~ImageInline}, respectively).\n * * It translates the `sources` model element to the view (also: data) structure that may look as follows:\n *\n * ```html\n * <p>Inline image using picture:\n * \t<picture>\n * \t\t<source media=\"(min-width: 800px)\" srcset=\"image-large.webp\" type=\"image/webp\">\n * \t\t<source media=\"(max-width: 800px)\" srcset=\"image-small.webp\" type=\"image/webp\">\n * \t\t<!-- Other sources as specified in the \"sources\" model attribute... -->\n * \t\t<img src=\"image.png\" alt=\"An image using picture\" />\n * \t</picture>\n * </p>\n *\n * <p>Block image using picture:</p>\n * <figure class=\"image\">\n * \t<picture>\n * \t\t<source media=\"(min-width: 800px)\" srcset=\"image-large.webp\" type=\"image/webp\">\n * \t\t<source media=\"(max-width: 800px)\" srcset=\"image-small.webp\" type=\"image/webp\">\n * \t\t<!-- Other sources as specified in the \"sources\" model attribute... -->\n * \t\t<img src=\"image.png\" alt=\"An image using picture\" />\n * \t</picture>\n * \t<figcaption>Caption of the image</figcaption>\n * </figure>\n * ```\n *\n * **Note:** The value of the `sources` {@glink framework/architecture/editing-engine#changing-the-model model attribute}\n * in both examples equals:\n *\n * ```css\n * [\n * \t{\n * \t\tmedia: '(min-width: 800px)',\n * \t\tsrcset: 'image-large.webp',\n * \t\ttype: 'image/webp'\n * \t},\n * \t{\n * \t\tmedia: '(max-width: 800px)',\n * \t\tsrcset: 'image-small.webp',\n * \t\ttype: 'image/webp'\n * \t}\n * ]\n * ```\n *\n * * It integrates with the {@link module:image/imageupload~ImageUpload} plugin so images uploaded in the editor\n * automatically render using `<picture>` if the {@glink features/images/image-upload/image-upload upload adapter}\n * supports image sources and provides neccessary data.\n *\n * @private\n */\nexport default class PictureEditing extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ ImageEditing, ImageUtils ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'PictureEditing' {\n\t\treturn 'PictureEditing';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst editor = this.editor;\n\n\t\tif ( editor.plugins.has( 'ImageBlockEditing' ) ) {\n\t\t\teditor.model.schema.extend( 'imageBlock', {\n\t\t\t\tallowAttributes: [ 'sources' ]\n\t\t\t} );\n\t\t}\n\n\t\tif ( editor.plugins.has( 'ImageInlineEditing' ) ) {\n\t\t\teditor.model.schema.extend( 'imageInline', {\n\t\t\t\tallowAttributes: [ 'sources' ]\n\t\t\t} );\n\t\t}\n\n\t\tthis._setupConversion();\n\t\tthis._setupImageUploadEditingIntegration();\n\t}\n\n\t/**\n\t * Configures conversion pipelines to support upcasting and downcasting images using the `<picture>` view element\n\t * and the model `sources` attribute.\n\t */\n\tprivate _setupConversion(): void {\n\t\tconst editor = this.editor;\n\t\tconst conversion = editor.conversion;\n\t\tconst imageUtils: ImageUtils = editor.plugins.get( 'ImageUtils' );\n\n\t\tconversion.for( 'upcast' ).add( upcastPicture( imageUtils ) );\n\t\tconversion.for( 'downcast' ).add( downcastSourcesAttribute( imageUtils ) );\n\t}\n\n\t/**\n\t * Makes it possible for uploaded images to get the `sources` model attribute and the `<picture>...</picture>`\n\t * view structure out-of-the-box if relevant data is provided along the\n\t * {@link module:image/imageupload/imageuploadediting~ImageUploadEditing#event:uploadComplete} event.\n\t */\n\tprivate _setupImageUploadEditingIntegration(): void {\n\t\tconst editor = this.editor;\n\n\t\tif ( !editor.plugins.has( 'ImageUploadEditing' ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst imageUploadEditing: ImageUploadEditing = editor.plugins.get( 'ImageUploadEditing' );\n\n\t\tthis.listenTo<ImageUploadCompleteEvent>(\n\t\t\timageUploadEditing,\n\t\t\t'uploadComplete',\n\t\t\t( evt, { imageElement, data } ) => {\n\t\t\t\tconst sources = data.sources;\n\n\t\t\t\tif ( !sources ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\teditor.model.change( writer => {\n\t\t\t\t\twriter.setAttributes( {\n\t\t\t\t\t\tsources\n\t\t\t\t\t}, imageElement );\n\t\t\t\t} );\n\t\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/table\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\n\nimport TableEditing from './tableediting';\nimport TableUI from './tableui';\nimport TableSelection from './tableselection';\nimport TableClipboard from './tableclipboard';\nimport TableKeyboard from './tablekeyboard';\nimport TableMouse from './tablemouse';\n\nimport '../theme/table.css';\n\n/**\n * The table plugin.\n *\n * For a detailed overview, check the {@glink features/tables/tables Table feature documentation}.\n *\n * This is a \"glue\" plugin that loads the following table features:\n *\n * * {@link module:table/tableediting~TableEditing editing feature},\n * * {@link module:table/tableselection~TableSelection selection feature},\n * * {@link module:table/tablekeyboard~TableKeyboard keyboard navigation feature},\n * * {@link module:table/tablemouse~TableMouse mouse selection feature},\n * * {@link module:table/tableclipboard~TableClipboard clipboard feature},\n * * {@link module:table/tableui~TableUI UI feature}.\n */\nexport default class Table extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableEditing, TableUI, TableSelection, TableMouse, TableKeyboard, TableClipboard, Widget ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Table' {\n\t\treturn 'Table';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tabletoolbar\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { WidgetToolbarRepository } from 'ckeditor5/src/widget';\nimport { getSelectedTableWidget, getTableWidgetAncestor } from './utils/ui/widget';\n\n/**\n * The table toolbar class. It creates toolbars for the table feature and its content (for now only for the table cell content).\n *\n * The table toolbar shows up when a table widget is selected. Its components (e.g. buttons) are created based on the\n * {@link module:table/tableconfig~TableConfig#tableToolbar `table.tableToolbar` configuration option}.\n *\n * Table content toolbar shows up when the selection is inside the content of a table. It creates its component based on the\n * {@link module:table/tableconfig~TableConfig#contentToolbar `table.contentToolbar` configuration option}.\n */\nexport default class TableToolbar extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ WidgetToolbarRepository ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableToolbar' {\n\t\treturn 'TableToolbar';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic afterInit(): void {\n\t\tconst editor = this.editor;\n\t\tconst t = editor.t;\n\t\tconst widgetToolbarRepository = editor.plugins.get( WidgetToolbarRepository );\n\n\t\tconst tableContentToolbarItems = editor.config.get( 'table.contentToolbar' );\n\n\t\tconst tableToolbarItems = editor.config.get( 'table.tableToolbar' );\n\n\t\tif ( tableContentToolbarItems ) {\n\t\t\twidgetToolbarRepository.register( 'tableContent', {\n\t\t\t\tariaLabel: t( 'Table toolbar' ),\n\t\t\t\titems: tableContentToolbarItems,\n\t\t\t\tgetRelatedElement: getTableWidgetAncestor\n\t\t\t} );\n\t\t}\n\n\t\tif ( tableToolbarItems ) {\n\t\t\twidgetToolbarRepository.register( 'table', {\n\t\t\t\tariaLabel: t( 'Table toolbar' ),\n\t\t\t\titems: tableToolbarItems,\n\t\t\t\tgetRelatedElement: getSelectedTableWidget\n\t\t\t} );\n\t\t}\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tableproperties\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TablePropertiesEditing from './tableproperties/tablepropertiesediting';\nimport TablePropertiesUI from './tableproperties/tablepropertiesui';\n\n/**\n * The table properties feature. Enables support for setting properties of tables (size, border, background, etc.).\n *\n * Read more in the {@glink features/tables/tables-styling Table and cell styling tools} section.\n * See also the {@link module:table/tablecellproperties~TableCellProperties} plugin.\n *\n * This is a \"glue\" plugin that loads the\n * {@link module:table/tableproperties/tablepropertiesediting~TablePropertiesEditing table properties editing feature} and\n * the {@link module:table/tableproperties/tablepropertiesui~TablePropertiesUI table properties UI feature}.\n */\nexport default class TableProperties extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableProperties' {\n\t\treturn 'TableProperties';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TablePropertiesEditing, TablePropertiesUI ] as const;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecellproperties\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport TableCellPropertiesUI from './tablecellproperties/tablecellpropertiesui';\nimport TableCellPropertiesEditing from './tablecellproperties/tablecellpropertiesediting';\n\n/**\n * The table cell properties feature. Enables support for setting properties of table cells (size, border, background, etc.).\n *\n * Read more in the {@glink features/tables/tables-styling Table and cell styling tools} section.\n * See also the {@link module:table/tableproperties~TableProperties} plugin.\n *\n * This is a \"glue\" plugin that loads the\n * {@link module:table/tablecellproperties/tablecellpropertiesediting~TableCellPropertiesEditing table cell properties editing feature} and\n * the {@link module:table/tablecellproperties/tablecellpropertiesui~TableCellPropertiesUI table cell properties UI feature}.\n */\nexport default class TableCellProperties extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableCellProperties' {\n\t\treturn 'TableCellProperties';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableCellPropertiesEditing, TableCellPropertiesUI ] as const;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecaption\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport TableCaptionEditing from './tablecaption/tablecaptionediting';\nimport TableCaptionUI from './tablecaption/tablecaptionui';\n\nimport '../theme/tablecaption.css';\n\n/**\n * The table caption plugin.\n */\nexport default class TableCaption extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'TableCaption' {\n\t\treturn 'TableCaption';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ TableCaptionEditing, TableCaptionUI ] as const;\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module table/tablecolumnresize\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport TableColumnResizeEditing from './tablecolumnresize/tablecolumnresizeediting';\nimport TableCellWidthEditing from './tablecellwidth/tablecellwidthediting';\n\nimport '../theme/tablecolumnresize.css';\n\n/**\n * The table column resize feature.\n *\n * It provides the possibility to set the width of each column in a table using a resize handler.\n */\nexport default class TableColumnResize extends Plugin {\n\t/**\n\t * @inheritDoc\n \t */\n\tpublic static get requires() {\n\t\treturn [ TableColumnResizeEditing, TableCellWidthEditing ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n \t */\n\tpublic static get pluginName(): 'TableColumnResize' {\n\t\treturn 'TableColumnResize';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module indent/indent\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport IndentEditing from './indentediting';\nimport IndentUI from './indentui';\n\n/**\n * The indent feature.\n *\n * This plugin acts as a single entry point plugin for other features that implement indentation of elements like lists or paragraphs.\n *\n * The compatible features are:\n *\n * * The {@link module:list/list~List} or {@link module:list/list/listediting~ListEditing} feature for list indentation.\n * * The {@link module:indent/indentblock~IndentBlock} feature for block indentation.\n *\n * This is a \"glue\" plugin that loads the following plugins:\n *\n * * The {@link module:indent/indentediting~IndentEditing indent editing feature}.\n * * The {@link module:indent/indentui~IndentUI indent UI feature}.\n *\n * The dependent plugins register the `'indent'` and `'outdent'` commands and introduce the `'indent'` and `'outdent'` buttons\n * that allow to increase or decrease text indentation of supported elements.\n *\n * **Note**: In order for the commands and buttons to work, at least one of compatible features is required.\n */\nexport default class Indent extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Indent' {\n\t\treturn 'Indent';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ IndentEditing, IndentUI ] as const;\n\t}\n}\n","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport internalLinkIcon from './icons/trilium.svg';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\n\nexport default class InternalLinkPlugin extends Plugin {\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( 'internalLink', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: 'Internal Trilium link (CTRL-L)',\n\t\t\t\ticon: internalLinkIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n            // enable internal link only if the editor is not read only\n\t\t\tview.bind('isEnabled').to(editor, 'isReadOnly', isReadOnly => !isReadOnly);\n\n\t\t\tview.on( 'execute', () => {\n\t\t\t\tconst editorEl = editor.editing.view.getDomRoot();\n\t\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\t\tcomponent.triggerCommand('addLinkToText');\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\"?>\\n<!-- Created with Inkscape (http://www.inkscape.org/) -->\\n\\n<svg\\n   viewBox=\\\"0 0 1000 1000\\\"\\n   version=\\\"1.1\\\"\\n   id=\\\"svg52\\\"\\n   sodipodi:docname=\\\"trilium.svg\\\"\\n   inkscape:version=\\\"1.1.2 (0a00cf5339, 2022-02-04)\\\"\\n   xmlns:inkscape=\\\"http://www.inkscape.org/namespaces/inkscape\\\"\\n   xmlns:sodipodi=\\\"http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd\\\"\\n   xmlns=\\\"http://www.w3.org/2000/svg\\\"\\n   xmlns:svg=\\\"http://www.w3.org/2000/svg\\\">\\n  <sodipodi:namedview\\n     id=\\\"namedview8\\\"\\n     pagecolor=\\\"#ffffff\\\"\\n     bordercolor=\\\"#666666\\\"\\n     borderopacity=\\\"1.0\\\"\\n     inkscape:pageshadow=\\\"2\\\"\\n     inkscape:pageopacity=\\\"0.0\\\"\\n     inkscape:pagecheckerboard=\\\"0\\\"\\n     showgrid=\\\"false\\\"\\n     inkscape:zoom=\\\"0.644\\\"\\n     inkscape:cx=\\\"263.19876\\\"\\n     inkscape:cy=\\\"552.01863\\\"\\n     inkscape:window-width=\\\"1860\\\"\\n     inkscape:window-height=\\\"1171\\\"\\n     inkscape:window-x=\\\"60\\\"\\n     inkscape:window-y=\\\"0\\\"\\n     inkscape:window-maximized=\\\"1\\\"\\n     inkscape:current-layer=\\\"svg52\\\" />\\n  <defs\\n     id=\\\"defs49\\\" />\\n  <g\\n     id=\\\"layer1\\\"\\n     transform=\\\"matrix(38.901422,0,0,38.901422,-3639.1766,-4159.6755)\\\">\\n    <path\\n       d=\\\"m 113.74804,110.03165 c -1.42996,-0.0442 -2.17088,0.625 -2.34981,0.68707 0.16278,-0.3083 0.27171,-0.50253 0.688,-0.936 -1.41596,-0.0148 -2.72887,0.29159 -3.73058,1.22872 -1.34352,1.25681 -1.23908,2.2981 -1.24178,2.29296 2.6e-4,5.3e-4 -0.21198,-0.67904 -0.27564,-1.40587 -1.46206,2.02387 -2.03936,4.70551 -0.93087,6.70595 0.6881,-1.65994 1.78073,-3.09055 3.18884,-4.21865 0.0464,-1.18373 0.52261,-2.18385 1.27529,-2.92226 -0.67922,0.81298 -0.97894,1.73919 -0.94869,2.67267 1.63782,-1.2219 3.64526,-2.03628 5.85031,-2.30351 -1.59648,0.29336 -3.04295,0.92965 -4.30723,1.79752 0.79133,0.36141 1.69504,0.41807 2.64485,0.0873 -0.91061,0.42675 -1.92147,0.49657 -2.9441,0.12489 -0.90763,0.66467 -1.71482,1.45002 -2.40861,2.31313 1.2317,0.40267 2.57896,0.31941 3.91968,-0.36393 -1.23077,0.79497 -2.67669,1.0931 -4.22173,0.75455 -0.61594,0.82662 -1.1322,1.71446 -1.53571,2.62946 0.49703,0.36645 2.65401,1.5162 6.35388,-1.21219 -0.52242,-0.15439 -0.94581,-0.37271 -0.946,-0.37308 0.0118,0.005 0.3813,0.0392 1.46198,-0.6082 0.95542,-0.55873 1.77726,-1.5708 2.38397,-2.35858 -0.51607,-0.19014 -0.91799,-0.38969 -0.91818,-0.39016 -2.6e-4,-2.6e-4 0.66691,0.0449 1.70185,-0.74737 0.92313,-0.70667 1.95369,-1.73106 1.95686,-1.70213 0.007,0.006 -2.27337,-1.67833 -4.66658,-1.75226\\\"\\n       id=\\\"path1983\\\"\\n       style=\\\"stroke-width:0.264583\\\" />\\n    <path\\n       d=\\\"m 97.266941,113.71206 c 1.085186,-0.31546 1.776174,0.0487 1.924677,0.0607 -0.181896,-0.20295 -0.301379,-0.32953 -0.700376,-0.57786 1.079852,-0.29036 2.140718,-0.31557 3.081128,0.20137 1.26132,0.69332 1.37526,1.50765 1.37643,1.50324 -2.1e-4,5.2e-4 0.0356,-0.55938 -0.051,-1.12601 1.49474,1.25469 2.43548,3.18504 1.96031,4.92842 -0.83512,-1.12979 -1.93695,-2.00494 -3.22366,-2.58743 -0.25583,-0.89312 -0.80621,-1.56175 -1.51917,-1.97627 0.67072,0.48585 1.07227,1.13284 1.22302,1.85031 -1.47981,-0.60864 -3.166266,-0.83387 -4.90201,-0.60297 1.275297,-0.091 3.97663,0.0938 6.16856,1.91271 -0.8667,0.54971 -1.91231,0.75182 -3.064598,0.49509 1.089028,0.36336 2.250068,0.30579 3.368318,-0.25684 0.62485,0.50874 1.18494,1.08377 1.66384,1.70177 -0.31184,0.37733 -1.74694,1.67877 -5.0839,0.32807 0.370727,-0.22061 0.65376,-0.47052 0.65386,-0.47083 -0.008,0.006 -0.2842,0.10505 -1.231125,-0.17543 -0.83448,-0.23762 -1.651249,-0.84721 -2.261907,-1.32822 0.359204,-0.24655 0.629433,-0.47787 0.629433,-0.47829 1.03e-4,-2.1e-4 -0.50152,0.16566 -1.440336,-0.23425 -0.837464,-0.35685 -1.816182,-0.93461 -1.813195,-0.91192 -0.0038,0.006 1.425721,-1.7274 3.241691,-2.25538\\\"\\n       id=\\\"path1985\\\"\\n       style=\\\"stroke-width:0.264583\\\" />\\n    <path\\n       d=\\\"m 105.05663,128.63261 c -0.79134,-0.73638 -0.82521,-1.48618 -0.88758,-1.6143 -0.0802,0.25063 -0.12732,0.41184 -0.13946,0.86376 -0.76798,-0.74444 -1.30598,-1.60504 -1.33424,-2.63626 -0.0379,-1.38278 0.58413,-1.88161 0.57992,-1.88032 5.3e-4,0 -0.48274,0.24889 -0.91199,0.60198 0.31536,-1.85427 1.46295,-3.58849 3.14515,-4.06444 -0.53297,1.24924 -0.72418,2.5913 -0.58168,3.94005 -0.61836,0.65478 -0.90639,1.44016 -0.90382,2.23317 0.0773,-0.79359 0.4199,-1.44591 0.94341,-1.92678 0.21481,1.52067 0.84951,3.02079 1.88754,4.33458 -0.6972,-1.00448 -1.86009,-3.31968 -1.41507,-6.02844 0.87976,0.44016 1.55757,1.20019 1.90564,2.27635 -0.22846,-1.0771 -0.84226,-2.00411 -1.85541,-2.64481 0.11867,-0.76719 0.32424,-1.51409 0.60492,-2.21568 0.46593,0.0691 2.24834,0.60303 2.75082,4.02125 -0.36419,-0.19538 -0.71004,-0.30404 -0.71039,-0.30392 0.009,0.003 0.22601,0.18165 0.45413,1.10045 0.20896,0.8051 0.1,1.78048 -0.003,2.5223 -0.38031,-0.17308 -0.70444,-0.28043 -0.70467,-0.28019 -2.6e-4,0 0.38218,0.33044 0.50704,1.30201 0.11131,0.86673 0.10758,1.95955 0.12498,1.94579 0.007,2.2e-4 -2.13212,-0.31444 -3.45655,-1.54655\\\"\\n       id=\\\"path1987\\\"\\n       style=\\\"stroke-width:0.264583\\\" />\\n  </g>\\n</svg>\\n\";","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport markdownIcon from './icons/markdown-mark.svg';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\n\nexport default class MarkdownImportPlugin extends Plugin {\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\teditor.ui.componentFactory.add( 'markdownImport', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: 'Markdown import from clipboard',\n\t\t\t\ticon: markdownIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\t// Callback executed once the image is clicked.\n\t\t\tview.on( 'execute', () => {\n\t\t\t\tglob.importMarkdownInline();\n\t\t\t} );\n\n\t\t\treturn view;\n\t\t} );\n\t}\n}\n","export default \"<svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"208\\\" height=\\\"128\\\" viewBox=\\\"0 0 208 128\\\"><rect width=\\\"198\\\" height=\\\"118\\\" x=\\\"5\\\" y=\\\"5\\\" ry=\\\"10\\\" stroke=\\\"#000\\\" stroke-width=\\\"10\\\" fill=\\\"none\\\"/><path d=\\\"M30 98V30h20l20 25 20-25h20v68H90V59L70 84 50 59v39zm125 0l-30-33h20V30h20v35h20z\\\"/></svg>\";","import Plugin from '@ckeditor/ckeditor5-core/src/plugin';\nimport scissorsIcon from './icons/scissors.svg';\nimport ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';\nimport HtmlDataProcessor from '@ckeditor/ckeditor5-engine/src/dataprocessor/htmldataprocessor';\n\nexport default class CutToNotePlugin extends Plugin {\n\tinit() {\n\t\tthis.htmlDataProcessor = new HtmlDataProcessor();\n\n\t\tthis.editor.ui.componentFactory.add( 'cutToNote', locale => {\n\t\t\tconst view = new ButtonView( locale );\n\n\t\t\tview.set( {\n\t\t\t\tlabel: 'Cut & paste selection to sub-note',\n\t\t\t\ticon: scissorsIcon,\n\t\t\t\ttooltip: true\n\t\t\t} );\n\n\t\t\t// Callback executed once the image is clicked.\n\t\t\tview.on('execute', () => {\n\t\t\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\t\t\t\tconst component = glob.getComponentByEl(editorEl);\n\n\t\t\t\tcomponent.triggerCommand('cutIntoNote');\n\t\t\t});\n\n\t\t\treturn view;\n\t\t} );\n\n\t\tthis.editor.getSelectedHtml = () => this.getSelectedHtml();\n\t\tthis.editor.removeSelection = () => this.removeSelection();\n\t}\n\n\tgetSelectedHtml() {\n\t\tconst model = this.editor.model;\n\t\tconst document = model.document;\n\n\t\tconst content = this.editor.data.toView(model.getSelectedContent(document.selection));\n\n\t\treturn this.htmlDataProcessor.toData(content);\n\t}\n\n\tasync removeSelection() {\n\t\tconst model = this.editor.model;\n\n\t\tmodel.deleteContent(model.document.selection);\n\n\t\tconst component = this.getComponent();\n\n\t\tawait component.triggerCommand('saveNoteDetailNow');\n\t}\n\n\tgetComponent() {\n\t\tconst editorEl = this.editor.editing.view.getDomRoot();\n\n\t\treturn glob.getComponentByEl( editorEl );\n\t}\n}\n","export default \"<?xml version=\\\"1.0\\\" encoding=\\\"utf-8\\\"?>\\n<!-- Svg Vector Icons : http://www.onlinewebfonts.com/icon -->\\n<!DOCTYPE svg PUBLIC \\\"-//W3C//DTD SVG 1.1//EN\\\" \\\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\\\">\\n<svg version=\\\"1.1\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\" xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\" x=\\\"0px\\\" y=\\\"0px\\\" viewBox=\\\"0 0 1000 1000\\\" enable-background=\\\"new 0 0 1000 1000\\\" xml:space=\\\"preserve\\\">\\n<metadata> Svg Vector Icons : http://www.onlinewebfonts.com/icon </metadata>\\n<g><g><path d=\\\"M853.9,754.9c-26-45.4-66.5-76.2-109.1-87.8c-33.7-9.2-68.7-6.4-98.9,10.7l-90-157.3C611.6,409.5,736.5,160.5,759,121.2C788,70.4,736,10,736,10L500,422.8L264,10c0,0-52,60.4-22.9,111.2c22.5,39.3,147.5,288.3,203.1,399.3l-89.9,157.3c-30.2-17.1-65.3-19.9-98.9-10.7c-42.7,11.6-83.1,42.3-109.1,87.8c-46.8,81.7-28.9,179.7,39.7,219c30.4,17.5,65.7,20.3,99.6,11.1c42.6-11.6,83.1-42.4,109.1-87.7c11.4-20,18.9-41,22.8-61.8v0c0-0.2,0-0.3,0.2-0.5c0.2-1.7,0.5-3.5,0.7-5.4c19.3-129.5,55.8-195.7,81.6-227.8c25.9,32.1,62.4,98.3,81.7,227.8c0.2,1.9,0.5,3.6,0.7,5.4c0.1,0.2,0.1,0.3,0.2,0.5v0c3.9,20.8,11.4,41.8,22.7,61.8c26,45.3,66.5,76.1,109.2,87.7c34,9.2,69.2,6.4,99.7-11.1C882.8,934.5,900.6,836.5,853.9,754.9z M327.9,858.9c-14.8,25.8-38.1,45.2-62.5,51.8c-10.8,3-26.7,4.7-41.3-3.6c-31.1-17.8-36.2-70.1-11.1-114c15-26,37.8-45,62.5-51.8c10.7-2.9,26.7-4.7,41.3,3.6C347.9,762.7,353,814.9,327.9,858.9z M775.9,907.1c-14.6,8.4-30.4,6.6-41.3,3.6c-24.4-6.6-47.7-26-62.5-51.8c-25.1-44-20-96.2,11.1-114c14.7-8.3,30.6-6.5,41.3-3.6C749.3,748,772.1,767,787,793C812.1,837,807.1,889.3,775.9,907.1z\\\"/><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g><g></g></g>\\n</svg>\";","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module font/font\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport FontFamily from './fontfamily';\nimport FontSize from './fontsize';\nimport FontColor from './fontcolor';\nimport FontBackgroundColor from './fontbackgroundcolor';\n\n/**\n * A plugin that enables a set of text styling features:\n *\n * * {@link module:font/fontsize~FontSize},\n * * {@link module:font/fontfamily~FontFamily}.\n * * {@link module:font/fontcolor~FontColor},\n * * {@link module:font/fontbackgroundcolor~FontBackgroundColor}.\n *\n * For a detailed overview, check the {@glink features/font Font feature} documentation\n * and the {@glink api/font package page}.\n */\nexport default class Font extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FontFamily, FontSize, FontColor, FontBackgroundColor ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Font' {\n\t\treturn 'Font';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module code-block/codeblock\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport CodeBlockEditing from './codeblockediting';\nimport CodeBlockUI from './codeblockui';\n\n/**\n * The code block plugin.\n *\n * For more information about this feature check the {@glink api/code-block package page} and the\n * {@glink features/code-blocks code block} feature guide.\n *\n * This is a \"glue\" plugin that loads the {@link module:code-block/codeblockediting~CodeBlockEditing code block editing feature}\n * and the {@link module:code-block/codeblockui~CodeBlockUI code block UI feature}.\n */\nexport default class CodeBlock extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ CodeBlockEditing, CodeBlockUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'CodeBlock' {\n\t\treturn 'CodeBlock';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module horizontal-line/horizontalline\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport { Widget } from 'ckeditor5/src/widget';\nimport HorizontalLineEditing from './horizontallineediting';\nimport HorizontalLineUI from './horizontallineui';\n\n/**\n * The horizontal line feature.\n *\n * It provides the possibility to insert a horizontal line into the rich-text editor.\n *\n * For a detailed overview, check the {@glink features/horizontal-line Horizontal line feature} documentation.\n */\nexport default class HorizontalLine extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ HorizontalLineEditing, HorizontalLineUI, Widget ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'HorizontalLine' {\n\t\treturn 'HorizontalLine';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module remove-format/removeformat\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\n\nimport RemoveFormatUI from './removeformatui';\nimport RemoveFormatEditing from './removeformatediting';\n\n/**\n * The remove format plugin.\n *\n * This is a \"glue\" plugin which loads the {@link module:remove-format/removeformatediting~RemoveFormatEditing}\n * and {@link module:remove-format/removeformatui~RemoveFormatUI} plugins.\n *\n * For a detailed overview, check out the {@glink features/remove-format remove format} feature documentation.\n */\nexport default class RemoveFormat extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ RemoveFormatEditing, RemoveFormatUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'RemoveFormat' {\n\t\treturn 'RemoveFormat';\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module find-and-replace/findandreplace\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport FindAndReplaceUI, { type SearchResetedEvent } from './findandreplaceui';\nimport FindAndReplaceEditing from './findandreplaceediting';\nimport type { Marker } from 'ckeditor5/src/engine';\nimport type { FindNextEvent, FindPreviousEvent, ReplaceAllEvent, ReplaceEvent } from './ui/findandreplaceformview';\n\nexport type ResultType = {\n\tid?: string;\n\tlabel?: string;\n\tstart?: number;\n\tend?: number;\n\tmarker?: Marker;\n};\n\n/**\n * The find and replace plugin.\n *\n * For a detailed overview, check the {@glink features/find-and-replace Find and replace feature documentation}.\n *\n * This is a \"glue\" plugin which loads the following plugins:\n *\n * * The {@link module:find-and-replace/findandreplaceediting~FindAndReplaceEditing find and replace editing feature},\n * * The {@link module:find-and-replace/findandreplaceui~FindAndReplaceUI find and replace UI feature}\n */\nexport default class FindAndReplace extends Plugin {\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ FindAndReplaceEditing, FindAndReplaceUI ] as const;\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'FindAndReplace' {\n\t\treturn 'FindAndReplace';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic init(): void {\n\t\tconst ui = this.editor.plugins.get( 'FindAndReplaceUI' );\n\t\tconst findAndReplaceEditing = this.editor.plugins.get( 'FindAndReplaceEditing' );\n\t\tconst state = findAndReplaceEditing.state!;\n\n\t\tui.on<FindNextEvent>( 'findNext', ( event, data ) => {\n\t\t\t// Data is contained only for the \"find\" button.\n\t\t\tif ( data ) {\n\t\t\t\tstate.searchText = data.searchText;\n\t\t\t\tthis.editor.execute( 'find', data.searchText, data );\n\t\t\t} else {\n\t\t\t\t// Find next arrow button press.\n\t\t\t\tthis.editor.execute( 'findNext' );\n\t\t\t}\n\t\t} );\n\n\t\tui.on<FindPreviousEvent>( 'findPrevious', ( event, data ) => {\n\t\t\tif ( data && state.searchText !== data.searchText ) {\n\t\t\t\tthis.editor.execute( 'find', data.searchText );\n\t\t\t} else {\n\t\t\t\t// Subsequent calls.\n\t\t\t\tthis.editor.execute( 'findPrevious' );\n\t\t\t}\n\t\t} );\n\n\t\tui.on<ReplaceEvent>( 'replace', ( event, data ) => {\n\t\t\tif ( state.searchText !== data.searchText ) {\n\t\t\t\tthis.editor.execute( 'find', data.searchText );\n\t\t\t}\n\n\t\t\tconst highlightedResult = state.highlightedResult;\n\n\t\t\tif ( highlightedResult ) {\n\t\t\t\tthis.editor.execute( 'replace', data.replaceText, highlightedResult );\n\t\t\t}\n\t\t} );\n\n\t\tui.on<ReplaceAllEvent>( 'replaceAll', ( event, data ) => {\n\t\t\t// The state hadn't been yet built for this search text.\n\t\t\tif ( state.searchText !== data.searchText ) {\n\t\t\t\tthis.editor.execute( 'find', data.searchText );\n\t\t\t}\n\n\t\t\tthis.editor.execute( 'replaceAll', data.replaceText, state.results );\n\t\t} );\n\n\t\t// Reset the state when the user invalidated last search results, for instance,\n\t\t// by starting typing another search query or changing options.\n\t\tui.on<SearchResetedEvent>( 'searchReseted', () => {\n\t\t\tstate.clear( this.editor.model );\n\t\t\tfindAndReplaceEditing.stop();\n\t\t} );\n\t}\n}\n","/**\n * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.\n * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license\n */\n\n/**\n * @module mention/mention\n */\n\nimport { Plugin } from 'ckeditor5/src/core';\nimport type { Element } from 'ckeditor5/src/engine';\n\nimport MentionEditing, { _toMentionAttribute } from './mentionediting';\nimport MentionUI from './mentionui';\n\nimport '../theme/mention.css';\n\n/**\n * The mention plugin.\n *\n * For a detailed overview, check the {@glink features/mentions Mention feature} guide.\n */\nexport default class Mention extends Plugin {\n\t/**\n\t * Creates a mention attribute value from the provided view element and optional data.\n\t *\n\t * ```ts\n\t * editor.plugins.get( 'Mention' ).toMentionAttribute( viewElement, { userId: '1234' } );\n\t *\n\t * // For a view element: <span data-mention=\"@joe\">@John Doe</span>\n\t * // it will return:\n\t * // { id: '@joe', userId: '1234', uid: '7a7bc7...', _text: '@John Doe' }\n\t * ```\n\t *\n\t * @param viewElement\n\t * @param data Additional data to be stored in the mention attribute.\n\t */\n\tpublic toMentionAttribute( viewElement: Element, data?: MentionAttribute ): MentionAttribute | undefined {\n\t\treturn _toMentionAttribute( viewElement, data );\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get pluginName(): 'Mention' {\n\t\treturn 'Mention';\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tpublic static get requires() {\n\t\treturn [ MentionEditing, MentionUI ] as const;\n\t}\n}\n\n/**\n * Represents a mention in the model.\n *\n * See {@link module:mention/mention~Mention#toMentionAttribute `Mention#toMentionAttribute()`}.\n */\nexport type MentionAttribute = {\n\n\t/**\n\t * The ID of a mention. It identifies the mention item in the mention feed. There can be multiple mentions\n\t * in the document with the same ID (e.g. the same hashtag being mentioned).\n\t */\n\tid: string;\n\n\t/**\n\t * A unique ID of this mention instance. Should be passed as an `option.id` when using\n\t * {@link module:engine/view/downcastwriter~DowncastWriter#createAttributeElement writer.createAttributeElement()}.\n\t */\n\tuid?: string;\n\n\t/**\n\t * Helper property that stores the text of the inserted mention. Used for detecting a broken mention\n\t * in the editing area.\n\t *\n\t * @internal\n\t */\n\t_text?: string;\n};\n","/**\n * https://github.com/zadam/trilium/issues/978\n */\nexport default function indentBlockShortcutPlugin(editor) {\n\teditor.keystrokes.set( 'Tab', ( data, cancel ) => {\n\t\tconst command = editor.commands.get( 'indentBlock' );\n\n\t\tif ( command.isEnabled && !isInTable() ) {\n\t\t\tcommand.execute();\n\t\t\tcancel();\n\t\t}\n\t} );\n\n\teditor.keystrokes.set( 'Shift+Tab', ( data, cancel ) => {\n\t\tconst command = editor.commands.get( 'outdentBlock' );\n\n\t\tif ( command.isEnabled && !isInTable() ) {\n\t\t\tcommand.execute();\n\t\t\tcancel();\n\t\t}\n\t} );\n\n\t// in table TAB should switch cells\n\tfunction isInTable() {\n\t\tlet el = editor.model.document.selection.getFirstPosition();\n\n\t\twhile (el) {\n\t\t\tif (el.name === 'tableCell') {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\tel = el.parent;\n\t\t}\n\n\t\treturn false;\n\t}\n}\n","// A simple plugin that extends the remove format feature to consider links.\nexport default function removeFormatLinksPlugin( editor ) {\n\t// Extend the editor schema and mark the \"linkHref\" model attribute as formatting.\n\teditor.model.schema.setAttributeProperties( 'linkHref', {\n\t\tisFormatting: true\n\t} );\n}\n","import { Plugin } from 'ckeditor5/src/core';\nimport { global, logWarning } from 'ckeditor5/src/utils';\nimport blockAutoformatEditing from '@ckeditor/ckeditor5-autoformat/src/blockautoformatediting';\nimport Math from './math';\n\nexport default class AutoformatMath extends Plugin {\n\tstatic get requires() {\n\t\treturn [ Math, 'Autoformat' ];\n\t}\n\n\t/**\n\t * @inheritDoc\n\t */\n\tinit() {\n\t\tconst editor = this.editor;\n\n\t\tif ( !editor.plugins.has( 'Math' ) ) {\n\t\t\tlogWarning( 'autoformat-math-feature-missing', editor );\n\t\t}\n\t}\n\n\tafterInit() {\n\t\tconst editor = this.editor;\n\t\tconst command = editor.commands.get( 'math' );\n\n\t\tif ( command ) {\n\t\t\tconst callback = () => {\n\t\t\t\tif ( !command.isEnabled ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\n\t\t\t\tcommand.display = true;\n\n\t\t\t\t// Wait until selection is removed.\n\t\t\t\tglobal.window.setTimeout(\n\t\t\t\t\t() => editor.plugins.get( 'MathUI' )._showUI(),\n\t\t\t\t\t50\n\t\t\t\t);\n\t\t\t};\n\n\t\t\tblockAutoformatEditing( editor, this, /^\\$\\$$/, callback );\n\t\t\tblockAutoformatEditing( editor, this, /^\\\\\\[$/, callback );\n\t\t}\n\t}\n\n\tstatic get pluginName() {\n\t\treturn 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diff --git a/package-lock.json b/package-lock.json
index be1a03a8e..89ac92fce 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
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         "chokidar": "3.5.3",
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@@ -99,7 +99,7 @@
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-        "webpack": "5.80.0",
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@@ -2299,9 +2299,9 @@
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+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.4.0.tgz",
+      "integrity": "sha512-S4XCWMEmzvo64T9GfvQDOXgYRDJ/wsSZc7Jvdgx5u1sd0JwsuPLqb3SYmusag+edF6ziyMensPVqLTSc1PiSEA==",
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@@ -12666,9 +12666,9 @@
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-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.80.0.tgz",
-      "integrity": "sha512-OIMiq37XK1rWO8mH9ssfFKZsXg4n6klTEDL7S8/HqbAOBBaiy8ABvXvz0dDCXeEF9gqwxSvVk611zFPjS8hJxA==",
+      "version": "5.81.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.81.0.tgz",
+      "integrity": "sha512-AAjaJ9S4hYCVODKLQTgG5p5e11hiMawBwV2v8MYLE0C/6UAGLuAF4n1qa9GOwdxnicaP+5k6M5HrLmD4+gIB8Q==",
       "dev": true,
       "dependencies": {
         "@types/eslint-scope": "^3.7.3",
@@ -14890,9 +14890,9 @@
       "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ=="
     },
     "axios": {
-      "version": "1.3.6",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.3.6.tgz",
-      "integrity": "sha512-PEcdkk7JcdPiMDkvM4K6ZBRYq9keuVJsToxm2zQIM70Qqo2WHTdJZMXcG9X+RmRp2VPNUQC8W1RAGbgt6b1yMg==",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.4.0.tgz",
+      "integrity": "sha512-S4XCWMEmzvo64T9GfvQDOXgYRDJ/wsSZc7Jvdgx5u1sd0JwsuPLqb3SYmusag+edF6ziyMensPVqLTSc1PiSEA==",
       "requires": {
         "follow-redirects": "^1.15.0",
         "form-data": "^4.0.0",
@@ -22757,9 +22757,9 @@
       "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g=="
     },
     "webpack": {
-      "version": "5.80.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.80.0.tgz",
-      "integrity": "sha512-OIMiq37XK1rWO8mH9ssfFKZsXg4n6klTEDL7S8/HqbAOBBaiy8ABvXvz0dDCXeEF9gqwxSvVk611zFPjS8hJxA==",
+      "version": "5.81.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.81.0.tgz",
+      "integrity": "sha512-AAjaJ9S4hYCVODKLQTgG5p5e11hiMawBwV2v8MYLE0C/6UAGLuAF4n1qa9GOwdxnicaP+5k6M5HrLmD4+gIB8Q==",
       "dev": true,
       "requires": {
         "@types/eslint-scope": "^3.7.3",
diff --git a/package.json b/package.json
index 33681f76f..f7fbf1341 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "@excalidraw/excalidraw": "0.15.2",
     "archiver": "5.3.1",
     "async-mutex": "0.4.0",
-    "axios": "1.3.6",
+    "axios": "1.4.0",
     "better-sqlite3": "7.4.5",
     "chokidar": "3.5.3",
     "cls-hooked": "4.2.2",
@@ -117,7 +117,7 @@
     "prettier": "2.8.8",
     "nodemon": "2.0.22",
     "rcedit": "3.0.1",
-    "webpack": "5.80.0",
+    "webpack": "5.81.0",
     "webpack-cli": "5.0.2"
   },
   "optionalDependencies": {
diff --git a/src/becca/entities/battachment.js b/src/becca/entities/battachment.js
index 6a8d1e5ca..7c1f9e50b 100644
--- a/src/becca/entities/battachment.js
+++ b/src/becca/entities/battachment.js
@@ -2,9 +2,9 @@
 
 const utils = require('../../services/utils');
 const dateUtils = require('../../services/date_utils');
-const becca = require('../becca');
 const AbstractBeccaEntity = require("./abstract_becca_entity");
 const sql = require("../../services/sql");
+const protectedSessionService = require("../../services/protected_session.js");
 
 const attachmentRoleToNoteTypeMapping = {
     'image': 'image'
@@ -72,7 +72,7 @@ class BAttachment extends AbstractBeccaEntity {
     }
 
     getNote() {
-        return becca.notes[this.parentId];
+        return this.becca.notes[this.parentId];
     }
 
     /** @returns {boolean} true if the note has string content (not binary) */
@@ -80,6 +80,12 @@ class BAttachment extends AbstractBeccaEntity {
         return utils.isStringNote(this.type, this.mime);
     }
 
+    isContentAvailable() {
+        return !this.attachmentId // new attachment which was not encrypted yet
+            || !this.isProtected
+            || protectedSessionService.isProtectedSessionAvailable()
+    }
+
     /** @returns {*} */
     getContent() {
         return this._getContent();
@@ -129,15 +135,17 @@ class BAttachment extends AbstractBeccaEntity {
 
         this.markAsDeleted();
 
-        if (this.role === 'image' && this.type === 'text') {
-            const origContent = this.getContent();
-            const oldAttachmentUrl = `api/attachment/${this.attachmentId}/image/`;
+        const parentNote = this.getNote();
+
+        if (this.role === 'image' && parentNote.type === 'text') {
+            const origContent = parentNote.getContent();
+            const oldAttachmentUrl = `api/attachments/${this.attachmentId}/image/`;
             const newNoteUrl = `api/images/${note.noteId}/`;
 
             const fixedContent = utils.replaceAll(origContent, oldAttachmentUrl, newNoteUrl);
 
-            if (origContent !== fixedContent) {
-                this.setContent(fixedContent);
+            if (fixedContent !== origContent) {
+                parentNote.setContent(fixedContent);
             }
         }
 
diff --git a/src/becca/entities/bnote.js b/src/becca/entities/bnote.js
index 3657ce321..0fd93ab06 100644
--- a/src/becca/entities/bnote.js
+++ b/src/becca/entities/bnote.js
@@ -1436,6 +1436,28 @@ class BNote extends AbstractBeccaEntity {
 
         return cloningService.cloneNoteToBranch(this.noteId, branch.branchId);
     }
+
+    isEligibleForConversionToAttachment() {
+        if (this.type !== 'image' || !this.isContentAvailable() || this.hasChildren() || this.getParentBranches().length !== 1) {
+            return false;
+        }
+
+        const targetRelations = this.getTargetRelations().filter(relation => relation.name === 'imageLink');
+
+        if (targetRelations.length !== 1) {
+            return false;
+        }
+
+        const parentNote = this.getParentNotes()[0]; // at this point note can have only one parent
+        const referencingNote = targetRelations[0].getNote();
+
+        if (parentNote !== referencingNote || parentNote.type !== 'text' || !parentNote.isContentAvailable()) {
+            return false;
+        }
+
+        return true;
+    }
+
     /**
      * Some notes are eligible for conversion into an attachment of its parent, note must have these properties:
      * - it has exactly one target relation
@@ -1456,25 +1478,13 @@ class BNote extends AbstractBeccaEntity {
      * @returns {BAttachment|null} - null if note is not eligible for conversion
      */
     convertToParentAttachment(opts = {force: false}) {
-        if (this.type !== 'image' || !this.isContentAvailable() || this.hasChildren() || this.getParentBranches().length !== 1) {
-            return null;
-        }
-
-        const targetRelations = this.getTargetRelations().filter(relation => relation.name === 'imageLink');
-
-        if (targetRelations.length !== 1) {
-            return null;
-        }
-
-        const parentNote = this.getParentNotes()[0]; // at this point note can have only one parent
-        const referencingNote = targetRelations[0].note;
-
-        if (parentNote !== referencingNote || parentNote.type !== 'text' || !parentNote.isContentAvailable()) {
+        if (!this.isEligibleForConversionToAttachment()) {
             return null;
         }
 
         const content = this.getContent();
 
+        const parentNote = this.getParentNotes()[0];
         const attachment = parentNote.saveAttachment({
             role: 'image',
             mime: this.mime,
diff --git a/src/public/app/entities/fnote.js b/src/public/app/entities/fnote.js
index 0187d7db5..cfe53cd84 100644
--- a/src/public/app/entities/fnote.js
+++ b/src/public/app/entities/fnote.js
@@ -1,7 +1,6 @@
 import server from '../services/server.js';
 import noteAttributeCache from "../services/note_attribute_cache.js";
 import ws from "../services/ws.js";
-import options from "../services/options.js";
 import froca from "../services/froca.js";
 import protectedSessionHolder from "../services/protected_session_holder.js";
 import cssClassManager from "../services/css_class_manager.js";
@@ -246,6 +245,27 @@ class FNote {
         return attachments.find(att => att.attachmentId === attachmentId);
     }
 
+    isEligibleForConversionToAttachment() {
+        if (this.type !== 'image' || !this.isContentAvailable() || this.hasChildren() || this.getParentBranches().length !== 1) {
+            return false;
+        }
+
+        const targetRelations = this.getTargetRelations().filter(relation => relation.name === 'imageLink');
+
+        if (targetRelations.length !== 1) {
+            return false;
+        }
+
+        const parentNote = this.getParentNotes()[0]; // at this point note can have only one parent
+        const referencingNote = targetRelations[0].getNote();
+
+        if (parentNote !== referencingNote || parentNote.type !== 'text' || !parentNote.isContentAvailable()) {
+            return false;
+        }
+
+        return true;
+    }
+
     /**
      * @param {string} [type] - (optional) attribute type to filter
      * @param {string} [name] - (optional) attribute name to filter
diff --git a/src/public/app/widgets/buttons/attachments_actions.js b/src/public/app/widgets/buttons/attachments_actions.js
index 022c3c0af..497bd9117 100644
--- a/src/public/app/widgets/buttons/attachments_actions.js
+++ b/src/public/app/widgets/buttons/attachments_actions.js
@@ -30,7 +30,6 @@ const TPL = `
     <div class="dropdown-menu dropdown-menu-right">
         <a data-trigger-command="deleteAttachment" class="dropdown-item">Delete attachment</a>
         <a data-trigger-command="convertAttachmentIntoNote" class="dropdown-item">Convert attachment into note</a>
-        <a data-trigger-command="convertAttachmentIntoNote" class="dropdown-item pull-attachment-into-note-button">Copy into clipboard</a>
     </div>
 </div>`;
 
@@ -47,22 +46,22 @@ export default class AttachmentActionsWidget extends BasicWidget {
     }
 
     async deleteAttachmentCommand() {
-        if (await dialogService.confirm(`Are you sure you want to delete attachment '${this.attachment.title}'?`)) {
-            await server.remove(`attachments/${this.attachment.attachmentId}`);
-
-            toastService.showMessage(`Attachment '${this.attachment.title}' has been deleted.`);
+        if (!await dialogService.confirm(`Are you sure you want to delete attachment '${this.attachment.title}'?`)) {
+            return;
         }
+
+        await server.remove(`attachments/${this.attachment.attachmentId}`);
+        toastService.showMessage(`Attachment '${this.attachment.title}' has been deleted.`);
     }
 
     async convertAttachmentIntoNoteCommand() {
-        if (await dialogService.confirm(`Are you sure you want to convert attachment '${this.attachment.title}' into a separate note?`)) {
-            const {note: newNote} = await server.post(`attachments/${this.attachment.attachmentId}/convert-to-note`)
-
-            toastService.showMessage(`Attachment '${this.attachment.title}' has been converted to note.`);
-
-            await ws.waitForMaxKnownEntityChangeId();
-
-            await appContext.tabManager.getActiveContext().setNote(newNote.noteId);
+        if (!await dialogService.confirm(`Are you sure you want to convert attachment '${this.attachment.title}' into a separate note?`)) {
+            return;
         }
+
+        const {note: newNote} = await server.post(`attachments/${this.attachment.attachmentId}/convert-to-note`)
+        toastService.showMessage(`Attachment '${this.attachment.title}' has been converted to note.`);
+        await ws.waitForMaxKnownEntityChangeId();
+        await appContext.tabManager.getActiveContext().setNote(newNote.noteId);
     }
 }
diff --git a/src/public/app/widgets/buttons/note_actions.js b/src/public/app/widgets/buttons/note_actions.js
index 4c0a2340f..b11f8d8a4 100644
--- a/src/public/app/widgets/buttons/note_actions.js
+++ b/src/public/app/widgets/buttons/note_actions.js
@@ -1,6 +1,11 @@
 import NoteContextAwareWidget from "../note_context_aware_widget.js";
 import utils from "../../services/utils.js";
 import branchService from "../../services/branches.js";
+import dialogService from "../../services/dialog.js";
+import server from "../../services/server.js";
+import toastService from "../../services/toast.js";
+import ws from "../../services/ws.js";
+import appContext from "../../components/app_context.js";
 
 const TPL = `
 <div class="dropdown note-actions">
@@ -25,6 +30,7 @@ const TPL = `
         aria-expanded="false" class="icon-action bx bx-dots-vertical-rounded"></button>
 
     <div class="dropdown-menu dropdown-menu-right">
+        <a data-trigger-command="convertNoteIntoAttachment" class="dropdown-item">Convert into attachment</a>
         <a data-trigger-command="renderActiveNote" class="dropdown-item render-note-button"><kbd data-command="renderActiveNote"></kbd> Re-render note</a>
         <a data-trigger-command="findInText" class="dropdown-item find-in-text-button">Search in note <kbd data-command="findInText"></a>
         <a data-trigger-command="showNoteSource" class="dropdown-item show-source-button"><kbd data-command="showNoteSource"></kbd> Note source</a>
@@ -45,6 +51,7 @@ export default class NoteActionsWidget extends NoteContextAwareWidget {
     doRender() {
         this.$widget = $(TPL);
 
+        this.$convertNoteIntoAttachmentButton = this.$widget.find("[data-trigger-command='convertNoteIntoAttachment']");
         this.$findInTextButton = this.$widget.find('.find-in-text-button');
         this.$printActiveNoteButton = this.$widget.find('.print-active-note-button');
         this.$showSourceButton = this.$widget.find('.show-source-button');
@@ -80,6 +87,8 @@ export default class NoteActionsWidget extends NoteContextAwareWidget {
     }
 
     refreshWithNote(note) {
+        this.$convertNoteIntoAttachmentButton.toggle(note.isEligibleForConversionToAttachment());
+
         this.toggleDisabled(this.$findInTextButton, ['text', 'code', 'book', 'search'].includes(note.type));
 
         this.toggleDisabled(this.$showSourceButton, ['text', 'relationMap', 'mermaid'].includes(note.type));
@@ -91,6 +100,28 @@ export default class NoteActionsWidget extends NoteContextAwareWidget {
         this.$openNoteExternallyButton.toggle(utils.isElectron());
     }
 
+    async convertNoteIntoAttachmentCommand() {
+        if (!await dialogService.confirm(`Are you sure you want to convert note '${this.note.title}' into an attachment of the parent note?`)) {
+            return;
+        }
+
+        const {attachment: newAttachment} = await server.post(`notes/${this.noteId}/convert-to-attachment`);
+
+        if (!newAttachment) {
+            toastService.showMessage(`Converting note '${this.note.title}' failed.`);
+            return;
+        }
+
+        toastService.showMessage(`Note '${newAttachment.title}' has been converted to attachment.`);
+        await ws.waitForMaxKnownEntityChangeId();
+        await appContext.tabManager.getActiveContext().setNote(newAttachment.parentId, {
+            viewScope: {
+                viewMode: 'attachments',
+                attachmentId: newAttachment.attachmentId
+            }
+        });
+    }
+
     toggleDisabled($el, enable) {
         if (enable) {
             $el.removeAttr('disabled');
diff --git a/src/routes/api/notes.js b/src/routes/api/notes.js
index 4cf1fecbf..9663d0536 100644
--- a/src/routes/api/notes.js
+++ b/src/routes/api/notes.js
@@ -267,6 +267,19 @@ function forceSaveNoteRevision(req) {
     note.saveNoteRevision();
 }
 
+function convertNoteToAttachment(req) {
+    const {noteId} = req.params;
+    const note = becca.getNote(noteId);
+
+    if (!note) {
+        throw new NotFoundError(`Note '${noteId}' not found.`);
+    }
+
+    return {
+        attachment: note.convertToParentAttachment({ force: true })
+    };
+}
+
 module.exports = {
     getNote,
     updateNoteData,
@@ -282,5 +295,6 @@ module.exports = {
     eraseUnusedAttachmentsNow,
     getDeleteNotesPreview,
     uploadModifiedFile,
-    forceSaveNoteRevision
+    forceSaveNoteRevision,
+    convertNoteToAttachment
 };
diff --git a/src/routes/routes.js b/src/routes/routes.js
index 6cd7983ea..8e8dcc61d 100644
--- a/src/routes/routes.js
+++ b/src/routes/routes.js
@@ -138,6 +138,7 @@ function register(app) {
     // this "hacky" path is used for easier referencing of CSS resources
     route(GET, '/api/notes/download/:noteId', [auth.checkApiAuthOrElectron], filesRoute.downloadFile);
     apiRoute(PST, '/api/notes/:noteId/save-to-tmp-dir', filesRoute.saveToTmpDir);
+    apiRoute(PST, '/api/notes/:noteId/convert-to-attachment', notesApiRoute.convertNoteToAttachment);
 
     apiRoute(PUT, '/api/branches/:branchId/move-to/:parentBranchId', branchesApiRoute.moveBranchToParent);
     apiRoute(PUT, '/api/branches/:branchId/move-before/:beforeBranchId', branchesApiRoute.moveBranchBeforeNote);
diff --git a/src/services/notes.js b/src/services/notes.js
index 504f6f3f8..ec50c3be8 100644
--- a/src/services/notes.js
+++ b/src/services/notes.js
@@ -370,6 +370,8 @@ function checkImageAttachments(note, content) {
         newAttachment.setContent(unknownAttachment.getContent(), { forceSave: true });
 
         content = content.replace(`api/attachments/${unknownAttachment.attachmentId}/image`, `api/attachments/${newAttachment.attachmentId}/image`);
+
+        log.info(`Copied attachment '${unknownAttachment.attachmentId}' to new '${newAttachment.attachmentId}'`);
     }
 
     return content;